Fact-checked by Grok 2 weeks ago

Tipple

A tipple is a used at a to load the extracted product, such as or ores, for transport, typically into railroad cars. Originally, the term referred to the place where cars were tipped and emptied of their , though it more generally now encompasses the facilities for processing and loading the material. The primary functions of a coal tipple include breaking the coal into uniform size categories—such as , nut, egg, and lump—sorting these fractions, removing impurities through washing or screening, and loading the processed coal into transportation vehicles. As the cornerstone of operations, tipples were essential for efficient coal production and distribution, often located near the main or entrance to facilitate quick transfer from underground workings. Historically, tipples emerged in the late 19th century alongside the expansion of railroads and in regions like and the Midwest, initially as simple wooden platforms for dumping from mine carts into storage or rail cars. Over time, they evolved into complex facilities incorporating mechanical breakers, washers, and conveyors to handle larger volumes and improve quality, with early wooden designs proving vulnerable to weathering and frequent fires until steel and concrete construction became standard by the early .

Definition and Etymology

Definition

A tipple is a specialized surface structure at a site primarily used for loading extracted product, such as or ores, into transportation vehicles, such as railroad cars or trucks. This facility represents a key component of operations, enabling the efficient transfer of raw or partially processed material from mine cars to larger transport systems. The core functions of a tipple include providing temporary for incoming , performing initial by through screening and crushing, and preparing the material for shipment by ensuring it meets quality and size requirements. Tipples can range from loading facilities to those with integrated screening and crushing equipment for initial processing. These activities occur after material has been brought to the surface, focusing on aggregation and handling rather than advanced beneficiation. Tipples differ from broader mining facilities, such as those dedicated to or full-scale plants that involve extensive washing to remove impurities; instead, they emphasize product loading and rudimentary processing to facilitate immediate . In the context of U.S. , tipples were particularly vital during periods when dominated distribution, serving as the critical interface between mines and rail networks.

Etymology

The term "tipple" in derives from the dialectal English "tipple," meaning to tip over or overturn, a frequentative form of the "tip." This reflects the structure's primary in emptying from minecarts by tipping them. The noun usage for a mining apparatus or facility first appeared in print in 1880, marking its entry into documented English mining terminology during the expansion of production. The word evolved from general overturning actions associated with "tip" into specialized mining jargon, with related terms like "tipping" directly describing the dumping mechanism for mine cars. It gained prominence in English-speaking mining regions, especially , where dense networks of mines adopted the term for local facilities handling material discharge and initial processing. The term "tipple" is used in both and mining contexts, though it is more commonly associated with coal mining regions.

History

Origins in the 19th Century

The of coal loading facilities, including early tipples, occurred during the late 19th century amid the industrial coal boom in the anthracite regions of and bituminous coal fields of the and , propelled by the rapid expansion of rail networks that enabled efficient coal export to urban and industrial markets. In the , this aligned with the growth of railroads like the and Reading Railroad, which by the 1840s connected mines to eastern ports and cities, transforming from a local resource into a . Similarly, in the UK, rail infrastructure such as the (operational since 1825) and subsequent lines facilitated shipment from northern coalfields to southern ports, supporting the export trade that reached tens of millions of tons annually by the 1850s. Early loading methods involved elevated wooden platforms where coal-filled minecarts were positioned for manual tipping or gravity-assisted dumping directly into waiting cars below, minimizing labor-intensive shoveling and speeding up the loading process. These structures, often built adjacent to mine shafts and rail sidings, represented a practical to the increasing volume of output, with basic hoists or chutes handling the transfer without mechanical power. In the UK, analogous loading facilities known as —wooden or stone platforms with chutes for gravity discharge—evolved alongside development, as seen at Wearmouth Colliery in , where deep shafts operational from integrated with port loading for export. Prominent early tipple examples appeared at mines in the late , including those facilitating loading for shipment via and rail to Philadelphia's burgeoning markets, thereby boosting regional production from approximately 1 million tons in 1840 to 3.7 million tons by 1850. These facilities marked a shift from manual wagon loading at the pithead to organized rail integration, exemplified by the first coal shipments from the Old Barnett mine in 1855 via the Huntingdon and Broad Top Mountain Railroad. The socioeconomic ramifications of these early loading facilities were profound, as they accelerated coal production growth—reaching 9.2 million tons in by 1860—and underpinned the era's industrialization by supplying affordable fuel for , steam engines, and urban heating, while fostering through job creation in mining communities despite emerging labor challenges like the 1842 Minersville strike. In both the and , this infrastructure supported a surge in coal exports, with US rail lines like the Baltimore and Ohio shipping 3 million tons by 1878, fueling economic expansion and the transition to a coal-dependent society.

Technological Evolution in the 20th Century

The transition from manual to powered systems in coal tipples began in the late 19th and early 20th centuries, as steam engines replaced hand-operated dumping and hoisting mechanisms to handle growing industrial demand. By the 1890s, steam-powered shaking screens emerged for initial coal sizing, while steam hoists facilitated car dumping; for instance, at the Kenilworth Mine in Utah, 125-hp Kewanee steam boilers powered tipple operations starting around 1910. Into the 1910s, early rotary car dumps—initially steam-driven in some installations—enabled automated unloading of coal cars by rotating them 180 degrees, reducing labor and spillage compared to manual tipping over rails. This mechanization marked a pivotal shift, with tipples evolving from wooden frames with bar screens to steel structures incorporating powered components for efficiency. By the 1920s, conveyor belts supplanted minecarts for intra-tipple and mine-to-tipple in some operations, integrating with electric undercutting machines to streamline coal flow and boost processing rates. These rubberized belts, often electrically driven, allowed continuous movement of coal to screening and loading areas, elevating throughput in major operations to hundreds of tons per hour and supporting the era's rising output demands. accelerated as mines electrified—reaching 70% by 1920—replacing steam with electric motors for conveyors and auxiliary equipment, though full adoption varied by region. Post-World War II transformed tipples into integrated facilities, with electric motors powering vibrating screens for precise size separation and crushers, aligning with peak U.S. production of approximately 530 million short tons annually in the mid-1950s. By 1956, 89% of was machine-loaded via these systems, enhancing separation accuracy and reducing manual sorting. Union advocacy, led by the (UMWA), drove safety enhancements amid rising mechanization, pushing for enclosed tipple structures and ventilation to curb dust exposure from dumping and screening. These efforts influenced the 1969 Federal Coal Mine Health and Safety Act, which mandated dust sampling and limits, contributing to a sharp decline in fatal injuries from 686 in 1925 to 9 by 1989.

Design and Components

Core Structural Elements

Early coal tipples were primarily constructed using , such as timber for elevated platforms typically ranging from 15 to 60 feet in height to facilitate coal handling above ground level. By the 1930s, designs transitioned to more durable and materials, often reinforced for structural integrity and longevity in harsh environments, as exemplified by the 1936 Reliance Tipple. Key structural features of tipples include elevated tracks positioned above rail beds to allow rail cars to be loaded directly beneath, large for accumulating and storing incoming , and chutes that enable controlled discharge into transport vehicles. These elements form the static backbone, with often built from and tracks supported by beams to handle the weight and flow of materials. Tipples were typically integrated into mining sites adjacent to mine portals or rail sidings, spanning multiple levels to promote gravity-assisted flow of coal from upper receiving areas to lower loading points. This positioning minimized the need for mechanical lifting and optimized efficiency in coal transfer. Scale variations in tipple design reflected mine output, with smaller structures handling 200-500 tons daily for modest operations and larger ones accommodating up to 1,000 tons per day in high-production settings. While core elements remained consistent, larger tipples incorporated expanded and extended lengths to support greater throughput. Some designs briefly integrated basic processing add-ons like screens atop the structural frame, though advanced equipment is addressed separately.

Processing Equipment

Processing equipment in coal tipples encompasses the machinery designed for initial handling, separation, and preparation of prior to loading, focusing on size classification, removal, and controlled distribution. These components were essential for transforming from mines into marketable grades, with designs evolving to improve efficiency and product quality in both simple and integrated tipples. Screening devices form a core part of tipple processing, utilizing vibrating screens or trommels to segregate by into grades such as lump, nut, and . Vibrating screens, often mechanically shaken or powered by electric motors, employ perforated plates or to allow finer material to pass through while retaining larger pieces, typically handling run-of- directly from the . Trommels, revolving cylindrical screens commonly installed in tipples, feature perforated drums that rotate to classify using apertures ranging from 1 to 4 inches, effectively separating oversize or from smaller fractions in a continuous flow. These devices were standard in early 20th-century tipples to ensure uniform sizing without extensive manual labor. In integrated tipples that combined loading with basic preparation, cleaning tools like jigs and cyclones addressed impurities such as rock and to enhance quality. Jigs operate on separation principles, using pulsating currents in a to stratify and heavier refuse, allowing the lighter clean to be drawn off as overflow while denser impurities settle and are discharged separately; these were particularly effective for coarse fractions in tipple settings. Cyclones, employing in a conical vessel, further refined the product by classifying fine particles and removing or sulfur-bearing materials, often as a secondary step after screening in more advanced installations. Such equipment enabled tipples to produce higher-grade suitable for or export markets. Loading mechanisms ensure efficient transfer of processed into railcars or , with rotary dumpers and feeders playing pivotal roles. Rotary dumpers secure railcars or cars on a rotating platform that inverts 180 degrees to discharge contents into underlying , minimizing spillage and handling high volumes typical of tipple operations. feeders, consisting of short conveyor s with adjustable speeds, regulate the flow of screened or cleaned from bins into loading chutes, promoting even distribution and preventing surges that could damage equipment or unevenly fill cars. These mechanisms were engineered for in dusty, abrasive environments common to handling. Auxiliary systems support safe and accurate processing, including dust collectors and scales introduced to mitigate hazards and ensure compliance. Dust collectors, such as early separators or shaker-bag filters, captured airborne particles generated during screening and dumping, reducing risks and improving air in tipple structures; these became more prevalent in the amid growing regulations. Scales, typically or types integrated into the tipple framework, measured weight during loading for billing and verification, with quick-weighing dials calibrated in 1,000- or 2,000-pound increments to facilitate rapid throughput. These additions marked a shift toward mechanized in mid-20th-century operations.

Operation

Coal Receiving and Dumping

Coal arrived at the tipple via underground rail systems, where it was transported from the workings in specialized minecars typically holding 1 to 4 tons of raw each, varying by era and . These cars, often referred to as mine tubs or skips, were hauled to the surface by hoists or locomotives along inclined tracks, emerging at the tipple's receiving area to facilitate unloading. This method ensured a steady flow from deep , with the cars positioned on elevated tracks or dump stations for efficient transfer. In the , dumping was predominantly , involving several laborers who physically tipped the cars using levers, winches, or sheer force to empty the contents over a chute or directly into receiving bins; this labor-intensive process aimed to manage the weight and prevent spillage. By the early , mechanical innovations such as rotary dumpers—where cars were rotated 180 degrees on a turntable—and bottom-dump mechanisms, which opened hinged floors, largely replaced methods, reducing the needed through and safer handling. These advancements minimized injury risks and increased throughput, marking a key evolution in tipple efficiency. Once dumped, the coal was directed into integrated storage hoppers, large bins such as those holding around 120 tons, designed to act as buffers against the irregular production rates common in underground operations. These hoppers, often constructed from wood, steel, or , featured inclined sides and vibrating feeders to prevent from bridging and ensure a consistent feed to downstream processes. The buffering role was essential for maintaining operational continuity, allowing tipples to handle surges or delays without halting mine output. Efficiency in the receiving and dumping phase improved dramatically over time; early manual setups processed around 20 to 30 cars per hour, while automated mechanical systems in the mid-20th century achieved rates exceeding 100 cars per hour, enabling larger-scale coal handling at central tipples. This progression supported the industrialization of coal mining, with rotary dumpers becoming standard by the 1920s in major U.S. coalfields.

Sorting, Cleaning, and Loading

In tipples, size begins after the initial dumping of raw , where the material is passed over shaker or vibrating screens to separate it into marketable grades such as lump, , nut, and pea sizes, with finer particles often recycled back into processing or directed to waste piles. Methods varied by type and region, such as processing in the Midwest using specific screen sizes. This screening process, common in 19th- and 20th-century operations, ensured that met specific customer requirements, such as pea-sized for industrial engines or larger lumps for smelting. Screen apertures varied, with examples including 1-inch and 3/8-inch meshes to grade and effectively. Cleaning processes in advanced tipples focused on removing impurities like , , and rock through water-based methods, particularly jigs and dense medium separation for sizes between 10 and 150 mm. These techniques, employing gravity concentration or , could reduce content by up to 60% and pyritic by 30-50%, targeting clean with less than 10% to improve efficiency and market value. In earlier setups, hand on picking tables supplemented cleaning by manually removing and bone , a labor-intensive step phased out with in the early . Post-cleaning, via centrifuges, filters, or drainage removed excess moisture to prepare the for . The loading sequence involved conveying the graded and cleaned via chutes or conveyor belts to car hoppers positioned beneath the tipple, filling them evenly to capacities of 50 to 100 tons per car by the mid-20th century for efficient shipment. This automated process, which evolved from manual methods, allowed high throughput; for instance, some tipples loaded up to 3,000 tons per hour, equivalent to 100 cars in 3.5 hours. Dust and fines not suitable for loading were routed to waste banks, minimizing losses. Quality checks occurred throughout, with visual inspections and on picking tables or at loading points to verify consistency in size, ash content, and purity, rejecting substandard material to waste piles. These measures, documented in historical reports, ensured compliance with market standards and reduced contamination risks during dispatch.

Types and Variations

Simple Loading Tipples

Simple loading tipples were minimalist structures designed for small-scale mines, particularly those operating before the , featuring basic dumps and chutes to facilitate the direct transfer of without any or facilities. These wooden constructions relied on simple mechanical principles, where was elevated via ramps or small hoists and then released through inclined chutes into waiting railroad cars or wagons below. Such tipples found widespread use in rural, low-output operations across regions like , where they enabled the loading of unprocessed run-of- coal straight from the mine face into transport vehicles, supporting local needs and early distribution without the need for complex . This approach was ideal for isolated mines with limited access to advanced equipment, allowing operators to bypass extensive preparation and focus on basic extraction and shipment. Notable examples include 19th-century tipples in the coalfields, which typically handled daily capacities of 50 to 200 tons using rudimentary wooden frameworks. These structures, often built near drift mine entrances, exemplified the era's reliance on manual labor and gravity-assisted loading to serve nearby railroads or canals. The primary advantages of simple loading tipples lay in their low construction costs—around $2,000 in dollars—and rapid assembly, which permitted quick entry into production for small operators, though their design restricted them to markets for unrefined lump . Over time, these basic models evolved into more sophisticated variants to accommodate growing industrial demands. Variations for ore mining followed similar principles but adapted chutes and dumps for denser materials like iron or ores, often incorporating basic screening to separate waste rock before loading.

Integrated Preparation Plants

Integrated preparation plants emerged in the 1920s as multi-stage facilities that combined loading with comprehensive to produce high-purity output, incorporating crushers to reduce size, washers for removal, dryers to lower content, and centrifuges for after washing. These plants evolved from earlier tipples by integrating gravity-based separation and chemical processes, enabling the handling of varied qualities while minimizing waste. These facilities typically operated at scales exceeding 1,000 tons per day, with many designed for through features like loops for efficient positioning and storage silos that allowed stockpiling for 24/7 operations regardless of schedules. For instance, the Hanna Coal Company's Willow Grove No. 10 preparation plant in Ohio processed up to 5,000 tons of cleaned daily in the mid-20th century, supporting large-scale distribution. In the Illinois Basin, mid-20th-century plants like the Orient No. 3 Mine near Waltonville, , and the Freeman No. 4 Mine in exemplified this scale, with the latter achieving 500 tons per hour using heavy media vessels and screens to prepare . Key innovations in these plants included the adoption of cells starting in the 1920s, which enhanced recovery of fine particles by attaching air bubbles to hydrophobic surfaces, often achieving mass yields exceeding 90% from raw inputs. By mid-century, Basin facilities incorporated advanced flotation designs with chemical agents and electronic control panels, reducing labor needs and improving efficiency in producing cleaner for industrial uses. These developments marked a shift toward mechanized, high-yield processing distinct from basic loading operations.

Decline and Legacy

Post-WWII Decline

Following World War II, the traditional coal tipple faced rapid obsolescence due to profound economic shifts in transportation. The rise of truck and barge transport eroded the dominance of rail shipping, which had necessitated tipples for loading coal into rail cars. By the 1950s, escalating rail rates prompted many coal consumers to switch to barging, particularly along rivers like the Ohio and Mississippi, while improved highways facilitated truck hauls for short distances. Truck shipments grew from a small share of U.S. coal transport in the early 1950s and came to dominate short-haul segments by the 1970s, reducing the need for rail-oriented tipples by the 1960s. Concurrent industry changes accelerated this decline. U.S. production, which peaked at around 680 million short tons in 1918 during the late and early boom, faced prolonged stagnation and then a surge driven by demand, but mechanized transformed operations. The introduction of continuous miners, longwall systems, and large-scale surface equipment like draglines reduced the volume of on-site processing required at tipples, as these methods produced larger, more uniform with less and needed. mines, which often relied on tipples, dropped by 90% in key states like between 1950 and 1970, shifting production to surface methods that bypassed traditional facilities. Environmental regulations in the 1970s further hastened tipple closures by addressing emissions and waste. The Clean Air Act of 1970 established national standards for , including generated during loading and dumping at tipples, compelling operators to install costly dust suppression systems or shut down non-compliant sites. Complementary rules under the Federal Coal Mine Health and Safety Act of 1969 set respirable dust limits at 3 mg/m³, directly impacting tipple operations where airborne particles posed health risks to workers. These measures, combined with provisions targeting discharge, led to widespread decommissioning, especially in older facilities ill-equipped for compliance. The statistical toll was stark: the U.S. hosted over 10,000 active mines in , many with associated tipples, but this number fell to approximately 1,400 mines by 2000, with tipples concentrated in (e.g., , ) and the Midwest (e.g., , ) as central and eastern operations consolidated. By 2000, active preparation plants numbered around 210 nationwide, a fraction of mid-century levels, reflecting the broader contraction.

Preservation and Modern Relevance

Efforts to preserve historic coal tipples have focused on recognizing their and cultural significance through national listings and restoration projects. The Aladdin Coal Tipple in , constructed around 1898, is one of the last surviving wooden tipples from the late and was added to the for its role in early coal operations. Preservation work at the site, including stabilization in the 1990s and fencing for safety in 2018, has transformed it into an interpretive park, supported by local historical societies. Similarly, the Reliance Tipple in , built in 1910 and abandoned in 1955, was listed on the in 1983 to highlight its sandstone foundation and multi-mine service. In the Big South Fork National River and Recreation Area, the Blue Heron Mining Community—once Mine 18 operated from 1937 to 1962—features preserved "ghost structures" of its original tipple and buildings, reconstructed as open metal frames in the 1980s to evoke the site's layout without modern interference. This initiative reclaimed the abandoned area, incorporating models of the tipple and bridge to illustrate coal processing. Since the , restored tipple sites have served as key venues for and , offering public access to mining heritage through guided tours and interactive exhibits. At Blue Heron, visitors explore audio recordings of former residents' stories, themed displays on community life, and historic photographs, fostering understanding of coal culture. The Aladdin Tipple supports school field trips and casual tourist stops along scenic routes, with pathways and signage providing context on 19th-century mining techniques. These efforts emphasize the social and technological aspects of coal , drawing annual visitors to sites that blend natural recreation with industrial history. Contemporary operations at large surface mines have adapted tipple principles into facilities, where conveyor systems handle sorting, cleaning, and direct loading to streamline . Modern structures equipped with screens and crushers process from pits via belts to hopper cars, maintaining efficiency in high-volume surface extraction while reducing manual handling. As of , the U.S. had approximately 550 active mines and around 250 preparation plants, per EIA data, continuing the trend of . Ongoing federal efforts include nearly $725 million in 2025 funding from the Department of the Interior for reclaiming abandoned mines, potentially benefiting historic tipple sites. The legacy of tipples extends to , where preserved examples inform studies of 19th- and 20th-century resource extraction and labor systems across the . Organizations like the Society for Industrial Archeology advocate for their protection as vital records of technological evolution, influencing broader efforts to document America's landscapes.

References

  1. [1]
    Definition of tipple - Mindat
    Definition of tipple. i. Originally the place where the mine cars were tipped and emptied of their coal, and still used in that sense, but more generally ...
  2. [2]
    Mining Terms | Department of Environmental Protection
    Timber set - A timber frame to support the roof, sides, and sometimes the floor of mine roadways or shafts. Tipple - Originally the place where the mine ...
  3. [3]
    [PDF] HISTORY OF THE COAL-MINING INDUSTRY IN OHIO
    The cornerstone of a mining operation is the tipple. The primary function of a coal tipple is to sort coal into different size fractions, such as pea, nut ...
  4. [4]
    Mining Type - ILMINES WIKI
    May 3, 2017 · The tipple for underground mines was generally located near the main shaft or slope. At surface mines, coal was sometimes hauled to a central ...
  5. [5]
    Aladdin Coal Tipple - Atlas Obscura
    Jul 2, 2019 · It's a great example of mining technology used in the late 1800s, constructed to store coal coming out of the mine and sort the resource as it ...
  6. [6]
    Coal - Glossary - U.S. Energy Information Administration (EIA)
    Shaft mine: A mine that reaches the coal bed by means of a vertical shaft. ... Tipple: A central facility used in loading coal for transportation by rail ...
  7. [7]
    [PDF] Coal | Energy and Environmental Profile of the US Mining Industry
    A preparation plant for bituminous coal is called a tipple. In the tipple, machines called breakers and crushers reduce the size of large bituminous lumps. The ...
  8. [8]
    [PDF] 352.010 Definitions for chapter. - Legislative Research Commission
    (aj) "Tipple or dumping point" means the structure where coal is dumped or unloaded from the mine car into railroad cars, trucks, wagons, or other means of ...
  9. [9]
    Coal Mining In The Cumberland Plateau. 1880-1930
    Sep 30, 2008 · ... rail. In this early example of state subsidies for industry, the ... The first essential...was the construction of the railroads." [4] ...
  10. [10]
    Definition of TIPPLE
    ### Summary of "Tipple" Related to Mining or Coal
  11. [11]
    TIPPLE Definition & Meaning - Dictionary.com
    Origin of tipple 1490–1500; back formation from Middle English tipeler tapster, equivalent to tipel- tap (cognate with Dutch tepel teat) + -er -er; tipsy.Missing: etymology | Show results with:etymology
  12. [12]
    TIPPLE definition in American English - Collins Dictionary
    a device for overturning ore trucks, mine cars, etc, so that they discharge their load ... C19: from tipple to overturn, from tip2. Examples of 'tipple' in a ...
  13. [13]
    The US Coal Industry in the Nineteenth Century – EH.net
    The coal industry was a major foundation for American industrialization in the nineteenth century. As a fuel source, coal provided a cheap and efficient source ...
  14. [14]
    10 Places with Coal Mining History - The Historic England Blog
    Feb 1, 2024 · By the 19th century, pits in Staffordshire dominated coal production in the West Midlands, a region that produced 23% of all coal mined in ...Missing: tipples | Show results with:tipples
  15. [15]
    Coal Culture Timeline - Indiana University of Pennsylvania
    The history of bituminous coal mining in Central and Western Pennsylvania spans two centuries. The following dates represent major historical events.Missing: origins | Show results with:origins
  16. [16]
    Southeastern Kansas Coal Field--Mineral Resources
    Historical records (Crane, 1898) of ... Discontinuance of screening coal in the mines led, first, to the use of bar screens in the mine tipple, then rotary ...
  17. [17]
    [PDF] Independent Coal and Coke Company Kenilworth Mine ... - Loc
    The company's tipple built in 1917 was torn down and rebuilt in 1926 and rebuilt again in 1931. This last tipple, built by the McNally Pittsburgh Manufacturing ...
  18. [18]
    [PDF] A Coal Mining Heritage Study: - NPS History
    After World War II, rapid mechanization in the coal industry replaced human labor, marking the end of an era in community life. Between 1950 and 1990, for ...
  19. [19]
    From Shovels to Machines - National Coal Heritage Area
    The broken coal falls into a pan line, which leads to a conveyor belt and then to the processing plant. ... Beginning in the 1920s, coal companies increasingly ...
  20. [20]
    UMW Journal - United Mine Workers of America
    From the early days of the 20th Century ... In 1978, the federal Mine Safety and Health Act set limits on miner's exposure to respirable dust, and the […] ...
  21. [21]
    [PDF] Best Practices for Dust Control in Coal Mining - CDC
    The passage of the Federal Coal Mine Health and Safety Act of 1969 was the initial regulatory step in controlling the respirable dust exposure of mine workers ...Missing: union | Show results with:union
  22. [22]
    [PDF] Chama Coal Tipple Structure Report / Maintenance Plan Cumbres ...
    The coal tipple was the last major structure to be built in the Chama ... Prior to the construction of the wooden roof structure, a small sheet metal ...Missing: transition | Show results with:transition
  23. [23]
    Reliance: Last of the Sweetwater County Coal Camps | WyoHistory.org
    Jan 2, 2020 · For decades a wooden tipple served the Reliance mines, but in 1936 a massive steel and concrete tipple replaced it. ... coal tipple from the ...
  24. [24]
    Reliance Tipple | SAH ARCHIPEDIA
    The Reliance Tipple, opened in 1936, is a structure used to sort and load coal into railroad cars, built with steel and concrete.Missing: post- | Show results with:post-
  25. [25]
    [PDF] COAL MINING IN THE COAL-BEARING REGION OF NORTH ...
    After being delivered to the surface, the coal generally passed through some form of "tipple," an elevated structure that graded and chuted the material into ...
  26. [26]
    [PDF] Montana DEQ - Great Falls Coal Field Historic Overview
    The late nineteenth century saw the first development of large-scale coal properties intended specifically to supply railroads. Railroads consumed a ...
  27. [27]
    [PDF] National Register Bulletin 42
    A coal tipple consists of the tracks, trestles, and screens where coal ... from distinctive design features, or from association with historic events ...<|control11|><|separator|>
  28. [28]
    Screening Equipment - 911Metallurgist
    Nov 8, 2020 · A revolving, roller, or trommel screen is a cylindrical jacket of perforated plate or wire cloth attached to the outside of cast rings or ...
  29. [29]
    [PDF] A study of screen sizing : with special reference to Illinois mining ...
    REVOLVING OR TROMMEL SCREENS. Of th3 three main classes of screens, +he rsvolvinp; screen or roller screen of the coal tipple, f^enerallv oalle^I a trommel or.
  30. [30]
    [PDF] The design and equipment of a model coal mine for the Union ...
    Most of the tipple machinery operates on 220-volt, A.C. current. TIPPLE ... The coal is screened over vibrating shaker screens into four sizes (minus l ...
  31. [31]
    Coal Cleaning Equipment - 911Metallurgist
    Nov 6, 2020 · The Vissac jig was used to treat sized feeds, and its high capacity can be explained on that basis.Missing: tipple | Show results with:tipple
  32. [32]
    [PDF] Coal Cleaning Plant Noise and Its Control - CDC Stacks
    Oct 16, 2025 · Modern heavy media plants employ per shift an average of about 0,7 workers per. 1000 tons/day input capacity; for an older jigging plant the.
  33. [33]
    Railcar Unloading Systems | Heyl & Patterson
    Railcar unloading systems are customizable, efficient equipment used to quickly unload railcars, often using a rotary system to turn the car before emptying.
  34. [34]
    [PDF] Construction and Maintenance of Belt Conveyors for Coal and Bulk ...
    This booklet covers construction, design, and maintenance of belt conveyors, including mechanical components, belts, standards, and drive selection.
  35. [35]
  36. [36]
    [PDF] Weights and measures fifteenth annual conference - GovInfo
    ... scale. A familiar instance of coarse dial graduations is the 1,000 or 2,000 pound quick- weighing dials used on coal-tipple scales at themines, these ...
  37. [37]
    Weekly U.S. Coal Production - EIA
    Weekly railroad cars loaded are not prorated to a daily basis. For the current year, the estimates include railroad cars loaded for the week that includes ...
  38. [38]
    100 Years with Coal Age - Page 2 of 10
    Sep 14, 2012 · A second conveyor is utilized to discharge the coal from the hopper in to the mine car, which is located to the rear of the machine. Both ...
  39. [39]
    [PDF] GUIDE TO COAL MINES - BNSF Railway
    Aug 1, 2018 · 144,000 tons (4 silos plus barn storage). Loading & Weighing. Batch ... Loop track holds one unit train. Type of Mine. Underground longwall ...<|control11|><|separator|>
  40. [40]
    None
    ### Summary of Integrated Coal Preparation Plants in the Illinois Basin Mid-20th Century
  41. [41]
    Propelling Innovation - Prairie Research Institute
    Throughout the 20th century, Illinois' coal underpinned the state's manufacturing sector, providing the energy needed for steel production, heavy industry, and ...
  42. [42]
    [PDF] DESIGN AND PERFORMANCE ASPECTS OF COAL FLOTATION
    This is therefore a very important consideration, especially for coal feeds offering very high potential yields, i.e., up to 80-90% mass; so the more bubble ...
  43. [43]
    100 Years with Coal Age - Page 5 of 10
    Sep 14, 2012 · As those rates rose through the 1950s, coal consumers started switching to barging instead. In the August 1958 issue, editor Given heralded ...Missing: rise truck
  44. [44]
    [PDF] Coal Transportation - UNT Digital Library
    3.3.3 Truck. In 1973 over 11% of the total coal shipments were made by truck, a 3% rise from 1962. Truck transportation is dominant in the short haul segment.
  45. [45]
    As coal shipments decline, rail remains dominant mode of coal ... - EIA
    Jun 2, 2017 · Both modes have accounted for about 10% of yearly coal shipments since 2008, but truck shipments have decreased slightly, reaching 9% in 2016, ...
  46. [46]
    The history of coal production in the United States - Visualizing Energy
    Sep 18, 2023 · West Virginia. Wyoming. 1860 1880 1900 1920 2020 1940 2000 1960 1980 0 500,000,000 400,000,000 300,000,000 200,000,000 100,000,000 Short tons ...
  47. [47]
    U.S. Prep Plant Census - Coal Age
    Oct 25, 2024 · This year's tally identifies a total of 231 prep plants, 214 processing bituminous coal and 17 processing anthracite.
  48. [48]
    [PDF] Annual Coal Report 2023 - EIA
    Oct 3, 2024 · The Annual Coal Report (ACR) provides information about U.S. coal production, number of mines, productive capacity, recoverable reserves, ...
  49. [49]
    Aladdin Tipple History - The Historical Marker Database
    The Aladdin Tipple in Crook County, Wyoming, was constructed as part of the Aladdin coal mining operations ... National Register of Historic Places.
  50. [50]
    Watch List: Aladdin Coal Tipple, Aladdin
    Dec 19, 2024 · The Aladdin Coal Tipple supplied coal to smelters in the Deadwood and Lead region from its construction in the late 1800s until it was abandoned ...<|separator|>
  51. [51]
    Reliance Tipple - the Wyoming State Historic Preservation Office!
    Coal production continued to decline steadily until the mines were closed in 1955. The tipple was abandoned at that time.Missing: Aladdin | Show results with:Aladdin
  52. [52]
    Blue Heron - Big South Fork National River & Recreation Area (U.S. ...
    Oct 11, 2019 · You will find a model of the town at its heyday in the 1950s, a model of the coal tipple and bridge, and learn the story of the Stearns ...
  53. [53]
    Aladdin Coal Tipple Field Trip | WyoHistory.org
    The Aladdin Coal Tipple, dating back to 1898, allows visitors a look at the coal mining history of Crook County. Coal from the mines at Aladdin was loaded ...
  54. [54]
    Coal mining and transportation - U.S. Energy Information ... - EIA
    Transporting coal · Conveyors, trams, and trucks move coal around mines, for short distances from mines to that are consumers close to the mines, or to other ...Missing: tipples | Show results with:tipples
  55. [55]
    SAVE AMERICA'S INDUSTRIAL HERITAGE
    Jun 30, 2025 · The Society for Industrial Archeology is concerned that we are jeopardizing the very parks, museums, and sites that tell the story of American industry.Missing: coal tipples