221:. Over the years important innovations, such as the Weston load brake (which is now rare) and the wire rope hoist (which is still popular), have come and gone. The original hoist contained components mated together in what is now called the built-up style hoist. These built up hoists are used for heavy-duty applications such as steel coil handling and for users desiring long life and better durability. They also provide for easier maintenance. Now many hoists are package hoists, built as one unit in a single housing, generally designed for ten-year life, but the life calculation is based on an industry standard when calculating actual life. See the Hoists Manufacturers Institute site for true life calculation, which is based on load and hours used. In today's modern world for the North American market, there are a few governing bodies for the industry. The Overhead Alliance is a group that represents
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225:, Hoist Manufacturers Institute, and Monorail Manufacturers Association. These product counsels of the Material Handling Industry of America have joined forces to create promotional materials to raise the awareness of the benefits of overhead lifting. The members of this group are marketing representatives of the member companies.
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use bridge cranes for regular maintenance, needing removal of heavy press rolls and other equipment. The bridge cranes are used in the initial construction of paper machines because they make it easier to install the heavy cast iron paper drying drums and other massive equipment, some weighing as
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The double girder overhead crane structure is used for heavier applications up to 125 tons and reaching over 100 feet of span. It can also be used to gain lifting height because the hoist of the double girder overhead crane is placed on the beams and the hook fits between them.
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EOT cranes are a common type of overhead crane. They are found in many factories and warehouses. These cranes are electrically operated by a control pendant, radio/IR remote pendant, or from an operator cabin attached to the crane.
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This type of overhead crane has both ends of the bridge mounted on an annular track. The bridge runs to entire diameter of the track, as opposed to just the radius for a rotary crane. Polar cranes are commonly used in
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and other metals, such as copper and aluminium. At every step of the manufacturing process, until it leaves a factory as a finished product, metal is handled by an overhead crane. Raw materials are poured into a
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This type of overhead crane has one end of the bridge mounted on a fixed pivot and the other end carried on an annular track; the bridge traverses the circular area beneath. This offers improvement over a
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Rotary Bridge Crane...provided with a circular overhead track carrying the outer end of the jib, or rotary bridge. It...avoids the severe lateral strains upon the building and thus dispenses with heavy
217:. Since that time Alliance Machine, now defunct, holds an AISE citation for one of the earliest cranes in the USA market. This crane was in service until approximately 1980, and is now in a museum in
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The rails of a suspended overhead crane are secured to the ceiling of the building. The elimination of dedicated support columns provides additional floor space, but limits lifting capacity.
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In many instances, the cost of a bridge crane can be largely offset with savings from not renting mobile cranes in the construction of a facility that uses a lot of heavy process equipment.
157:, the lifting component of a crane, travels along the bridge. If the bridge is rigidly supported on two or more legs running on two fixed rails at ground level, the crane is called a
589:. Three separate, two-cylinder engines provided transverse, longitudinal, and hoisting motion; a feature of the design was the ability to raise or lower the load while in transit.
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or construction cranes, overhead cranes are typically used for either manufacturing or maintenance applications, where efficiency or downtime are critical factors.
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Recently, Overhead Cranes have been used in the
Windpower industry. Giant Cranes such as this one are being used to build the world's longest wind turbines.
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The single girder type overhead crane is the most common overhead crane. It is generally used for light applications, normally up to 10 tonnes.
432:, and then stored by an overhead crane for cooling, the finished coils are lifted and loaded onto trucks and trains by overhead crane, and the
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ISO 8686-5: "Cranes; design principles for loads and load combinations; part 5: overhead travelling and portal bridge cranes" (1992)
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A remarkable engineering effort was made by
Protech in the province of Quebec, Canada, to build these Giant Overhead Cranes.
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BS 466: "Specification for Power driven overhead travelling cranes, semi-goliath and goliath cranes for general use" (1984)
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While sharing major components, overhead cranes are manufactured in a number of configurations based on applications.
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1887: The Ludwig
Stuckenholz company introduces electrical components to overhead cranes, determining industry design.
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ASME B30.2: "Overhead and Gantry Cranes (Top
Running Bridge, Single or Multiple Girder, Top Running Trolley Hoist)"
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648:"Overhead power travelling crane for the Gun Factory of the Royal Arsenal" The Engineer, 22 September 1876, p219.
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in
England designed and supplied the first ever electric overhead crane, which was used to hoist guns at the
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ISO 4301-5: "Cranes; classification; part 5: overhead travelling and portal bridge cranes" (1991)
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An overhead crane, featuring runways, bridge, and hoist in a traditional industrial environment.
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ASME B30.17: "Overhead and Gantry Cranes (Top
Running Bridge, Single Girder, Underhung Hoist)"
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by making possible a longer reach and eliminating lateral strains on the building walls.
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The history of the theory of structures: from arch analysis to computational mechanics
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at nuclear power stations, fitting their circular, steam pressure containing design.
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mechanism that allowed the lifting of heavier weights (such as naval guns) by an
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found in industrial environments. An overhead crane consists of two parallel
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Longest
Overhead Crane to build the longest wind turbines at LM Windpower.
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or stamper uses an overhead crane to handle the steel in his factory. The
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760:"Despite no new plants, Minn. Company still part of the nuclear process"
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The London
Gazette, 1 Feb 1867 (original patent filed on 25 Jan 1854)
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1910: The first mass-produced electric motor hoist starts in
Germany.
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One of two overhead cranes hoisting a space shuttle payload in the
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1830: First Crane company in
Germany, Ludwig Stuckenholz company.
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Example of steam powered overhead crane from 1875, produced by
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industry uses overhead cranes to handle raw materials. Smaller
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mounted on a trolley that can be moved across the bridge beam
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by crane, hot metal is then rolled to specific thickness and
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driven by a stationary engine through an endless cotton rope.
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Example of an overhead crane being used to lift heavy rolls
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FEM 1.001: "Rules for the Design of Hoisting Appliances"
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An EOT overhead crane is used to move and build this
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from an original installation at Crewe railway works
113:-style overhead cranes of the Hainaut quarry in
448:, handle lighter loads in a work area, such as
27:Type of crane found in industrial environments
811:ASME B30.11: "Monorails and Underhung Cranes"
736:. Stamford, CT: Yale and Towne. p. 129.
8:
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363:A VFD crane currently performing a load test
271:. Power was transmitted to the crane from a
782:"Improved overhead steam traveling crane".
223:Crane Manufacturers Association of America
415:Overhead cranes are commonly used in the
153:. The traveling bridge spans the gap. A
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294:EOT (Electric Overhead Traveling) Crane
693:. Berlin: Ernst & Sohn. pp.
560:Rotary overhead crane installed in a
506:Modern Overhead Crane (Double Girder)
241:of overhead cranes starts in Germany.
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582:Steam-powered overhead crane from
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603:Space Station Processing Facility
300:Electric overhead traveling crane
49:to comply with Knowledge (XXG)'s
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244:1854: Sampson Moore & Co in
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792:(794). New York. 21 March 1891.
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263:overhead crane is installed by
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843:OSHA Regs for overhead cranes
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379:for a customized application
184:Double Girder Overhead Crane
176:Single Girder Overhead Crane
161:(USA, ASME B30 series) or a
685:Kurrer, Karl-Eugen (2008).
509:Examples of overhead cranes
317:A woman operating a 20-ton
145:attached to opposite steel
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375:An overhead crane using a
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659:"MHI Vision and Mission"
248:, England patents a new
193:Suspended Overhead Crane
62:may contain suggestions.
47:may need to be rewritten
444:cranes, such as jib or
349:Sant Feliu de Llobregat
269:Crewe Railway workshops
141:seated on longitudinal
826:Indian Standard - 3177
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385:Rotary overhead crane
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734:A treatise on cranes
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219:Birmingham, Alabama
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858:Cranes (machines)
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663:. Retrieved
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626:Gantry crane
546:Rudolf Bredt
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411:Applications
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377:lifting beam
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159:gantry crane
149:by means of
131:bridge crane
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68:October 2011
65:
56:You can help
46:
29:
587: 1890
569: 1880
457:paper mills
455:Almost all
442:workstation
398:Polar crane
335:submersible
321:crane, 1914
98:factory in
637:References
438:automobile
434:fabricator
800:Standards
631:EOT crane
392:jib crane
345:warehouse
340:Ictineu 3
246:Liverpool
60:talk page
852:Category
732:(1883).
665:27 April
610:See also
430:annealed
426:tempered
351:, Spain.
205:In 1876
151:brackets
115:Soignies
562:foundry
496:Gallery
422:furnace
343:, in a
267:at the
201:History
168:Unlike
147:columns
143:I-beams
119:Belgium
93:Skanska
747:walls.
742:938144
740:
701:
697:–415.
542:Wetter
337:, the
273:pulley
237:1840:
170:mobile
111:Gantry
58:. The
661:. MHI
522:hoist
250:winch
155:hoist
139:rails
135:crane
790:XXXI
738:OCLC
699:ISBN
667:2014
695:411
450:CNC
428:or
347:of
319:EOT
213:in
125:An
854::
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675:^
584:c.
566:c.
564:,
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117:,
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669:.
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