2. Construction Galleries

Construction Earth Moving: Cut and Fill: dozers, loaders, scrapers, grader, trucks

earth moving, construction, equipment, method, dozer, excavator, bulldozer, bull, backhoe, scraper, grader
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Allis-Chalmers HD-9 tractor/bull dozer. 1954, 54 hp, 18,800 lb. Historical Construction Equipment Association 2007 National Convention and Old Equipment Exposition, Zagray Farm Museum, Colchester, CT, July 21, 2007.
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Allis-Chalmers HD-9 tractor/bull dozer. 1954, 54 hp, 18,800 lb. Historical Construction Equipment Association 2007 National Convention and Old Equipment Exposition, Zagray Farm Museum, Colchester, CT, July 21, 2007.

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  • Allis-Chalmers HD-9 tractor/bull dozer. 1954, 54 hp, 18,800 lb. Historical Construction Equipment Association 2007 National Convention and Old Equipment Exposition, Zagray Farm Museum, Colchester, CT, July 21, 2007.
  • Oliver OC12 tractor/ bulldozer: 1955, 40 hp, 9800 lb, diesel. Historical Construction Equipment Association 2007 National Convention and Old Equipment Exposition, Zagray Farm Museum, Colchester, CT, July 21, 2007.
  • Oliver OC12 tractor/ bulldozer: 1955, 40 hp, 9800 lb, diesel. Historical Construction Equipment Association 2007 National Convention and Old Equipment Exposition, Zagray Farm Museum, Colchester, CT, July 21, 2007.
  • Oliver OC12 tractor/ bulldozer: 1955, 40 hp, 9800 lb, diesel. Historical Construction Equipment Association 2007 National Convention and Old Equipment Exposition, Zagray Farm Museum, Colchester, CT, July 21, 2007.
  • Catepillar D2 5J or 5U tractor/ bulldozer. Historical Construction Equipment Association 2007 National Convention and Old Equipment Exposition, Zagray Farm Museum, Colchester, CT, July 21, 2007. Photo by Rip Carr
  • Euclid TC-12 tractor/ bulldozer with cable adjusted dozer blade. Known as the Twin Euc, the tractor is built from two smaller tractors side-by-side, with one track from each, which can be operated independently. Historical Construction Equipment Association 2007 National Convention and Old Equipment Exposition, Zagray Farm Museum, Colchester, CT, July 21, 2007. Photo by Rip Carr
  • Caterpillar RD4 tracked tractor tows a pull grader. Historical Construction Equipment Association 2007 National Convention and Old Equipment Exposition, Zagray Farm Museum, Colchester, CT, July 21, 2007. Photo by Rob Carr
  • Austin grader: The earliest motorized graders consisted of grader attachments mounted on modified crawler and industrial wheel tractors. This design was made obsolete by later machines that were built from the ground up as motor graders, rather than as modifications to or attachments for other types of machines. This machine consists of a McCormick-Deering 10-20 wheel tractor with an Austin Manufacturing grader attachment. It is an ancestor to the famous Austin-Western line of motor graders. Museum volunteers restored her in stages in 2003 and 2006. Historical Construction Equipment Museum, Bowling Green, Ohio, 2007. (Caption by HCEA)
  • Caterpillar 621F wheel-tractor scraper is pushed by Cat D6R bull dozer. Dozer blade pushes on rear push block of scraper. Bowl has been lowered so its cutting edge cuts soil, and scraper apron at front of bowl has been lifted. Therefore, the bowl fills with soil as scraper moves with asistance of dozer pushing it forward. The Courtyards private dormitory, North Campus, University of Michigan, Ann Arbor, Michigan. 2007.
  • Caterpillar 621F wheel-tractor scraper is pushed by Cat D6R bull dozer. Photo shows detailed view of dozer blade pushing on rear push block of scraper. The Courtyards private dormitory, North Campus, University of Michigan, Ann Arbor, Michigan. 2007.
  • Caterpillar 621F wheel-tractor scraper transports soil from cut area to fill are. After being filled, bowl is raised to clear the ground, and front apron of bowl is lowered to keep soil in bowl as scraper travels. The Courtyards private dormitory, North Campus, University of Michigan, Ann Arbor, Michigan. 2007.
  • Caterpillar 621F wheel-tractor scraper returns to cut area after dumping previous load at fill area. Cat D6R bull dozer is rough grading earth slope on which scraper became hung up going uphill with last load. The Courtyards private dormitory, North Campus, University of Michigan, Ann Arbor, Michigan. 2007.
  • Caterpillar D6R bull dozer moves earth to rough grade path of scraper excavating earth. The Courtyards private dormitory, North Campus, University of Michigan, Ann Arbor, Michigan. 2007.
  • Caterpillar 621F wheel-tractor scraper travels uphill empty, with bowl raised for traveling. The Courtyards private dormitory, North Campus, University of Michigan, Ann Arbor, Michigan. 2007.
  • Caterpillar D4H XL bull dozer moves earth at site of new North East Branch Library, Ann Arbor, Michigan, May, 2007
  • Construction equipment: Caterpillar D250E 25 ton, articulated, rear dump, rough terrain, off road hauler. Plymouth Green Crossings, Ann Arbor, Michigan, March 2007.
  • Bay Lynx Multicat stone/soil spreader mounted on International Paystar 5000 truck chassis. Conveyor feeds from bottom of truck bed and dumps stone/soil onto spreader conveyor that extends from rear. Spreader conveyor accurately throws stone/soil a distance and direction controlled by speed and direction of the spreader conveyor. Plymouth Road, Ann Arbor, Michigan. March 2007.
  • Bay Lynx Multicat stone/soil spreader mounted on International Paystar 5000 truck chassis. Conveyor feeds from bottom of truck bed and dumps stone/soil onto spreader conveyor that extends from rear. (Spreader conveyor is here rotated forward, on right side, for traveling. Spreader conveyor accurately throws stone/soil a distance and direction controlled by speed and direction of the spreader conveyor. Spreader conveyor controls are at top left of truck rear. Plymouth Road, Ann Arbor, Michigan. March 2007.
  • Earthmoving construction: Caterpillar 9506 front end loader picks up and loads Western Star truck trailer with large stones from excavation for building extension. In background is vibratory pile driver and its power station. University of Michigan dormitory project, Ann Arbor, Michigan, December 2006
  • Earthmoving construction: Caterpillar 9506 front end loader picks up and loads Western Star truck trailer with large stones from excavation for building extension. In background is vibratory pile driver and its power station. University of Michigan dormitory project, Ann Arbor, Michigan, December 2006
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