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  • All fields: Crawler tractors
(43 results)



Display: 20

    • Nebraska Tractor Test Laboratory, Records

    • Farm tractors--Testing; Tractors--Testing; Caterpillar Inc.; Crawler tractors
    • "1933. Drawbar test of the Caterpillar Diesel 75." The Caterpillar crawler is towing the oldc "bathtub" test car and several other load tractors. In the background is the (what is today) the Activities Building on the East Campus..
    • Nebraska Tractor Test Laboratory, Records

    • Farm tractors; Tractors; Allis-Chalmers tractors; Allis-Chalmers Manufacturing Company; Crawler tractors
    • "1940. Tractors arriving for test" Unloading tractors for tests 360, 361, and 362. Allis-Chalmers crawlers HD-7W, HD-10W, and HD-14 are being driven down a wooden ramp as they are unloaded from a box car on a special railroad siding.
    • Nebraska Tractor Test Laboratory, Records

    • Farm tractors--Testing; Tractors--Testing; Allis-Chalmers tractors; Allis-Chalmers Manufacturing Company; Crawler tractors
    • "8 year old boy driving the HD-19, a 40,000 lb tractor. Test no. 397." Tractor is diven on the dirt track. The Agricultural Engineering Building (Chase Hall today) is in the background.
    • Nebraska Tractor Test Laboratory, Records

    • Farm tractors; Allis-Chalmers tractors; Allis-Chalmers Manufacturing Company; Crawler tractors
    • "Arrival of Allis-Chalmers HD5B & HD19." Side view of Allis-Chalmers crawlers on a flatbed railcar. The rail line delivered coal to the Power Plant on the East Campus and tractor to the Lab.
    • Nebraska Tractor Test Laboratory, Records

    • Allis-Chalmers tractors; Allis-Chalmers Manufacturing Company; Farm tractors; Garden tractors; Crawler tractors
    • "Big and Little." Allis-Chalmers G & Allis-Chalmers HD19. One operator is seated on an Allis-Chalmers G alongside an Allis-Chalmers HD-19 Diesel crawler, on which two men are seated. The tractors are parked on the dirt test track.
    • Larsen Tractor Museum, Records

    • Crawler tractors; Caterpillar Inc.; Tractors--Testing
    • "Caterpillar crawler tractor during drawbar test." The crawler tractor is driven on the old dirt test track with the first "bathtub" test car and load tractors pulled behind it. This was conducted at Hoffman Estates in Illinois.
    • Nebraska Tractor Test Laboratory, Records

    • Tractors--Testing; Caterpillar Inc.; Crawler tractors
    • "Crawler tractor being tested." View of a Caterpillar Steel-Tracked Crawler diesel (probably a D6 model) being driven on the test track towing the Adams test car and four load tractors. The track at that time was a "dirt track", meaning that the...
    • Nebraska Tractor Test Laboratory, Records

    • Tractors--Testing; Caterpillar Inc.; Crawler tractors
    • "D-8 Caterpillar being tested on the dirt track before 1956." Front view of Caterpillar crawler rounding the curve in the test track followed by the test car and six other tractors. The Adams test car was off-set from the main load. because its...
    • Larsen Tractor Museum, Records

    • Farm tractors--Testing; Tractors--Testing; Crawler tractors
    • "Early test of an unidentified large crawler tractor." Bird's-eye view of crawler tractor towing the first ("bathtub") test car and other tractors on a dirt track. The tractor with the stack looks like a Hart-Parr or a Rumely.
    • Larsen Tractor Museum, Records

    • Tractors--Testing; Allis-Chalmers Manufacturing Company; Allis-Chalmers tractors; Crawler tractors
    • "Harold Mizner, a test technician, measuring drive belt pulley speed. It might be Carlton Zink at the dynamometer." On the left of the image, the rear half of an Allis-Chalmers HD-14 Diesel crawler is visible. The belt extends from the tractor...
    • Nebraska Tractor Test Laboratory, Records

    • Tractors--Testing; Equipment; Sulek, John; Steinbruegge, George; Hurlbut, L.W.; Larsen, Lester F., 1908-2000
    • "L.F. Larsen explaining to the Tractor Test Board (John Sulek. Geo. Steinbruegge. L.W. Hurlbut, chair} the 30 square inch hydraulic cylinder used for larger crawler tractors." Whenthe pull was too highrfor this cylinder, a mechanical arrangement...
    • Nebraska Tractor Test Laboratory, Records

    • Farm tractors--Testing; Tractors--Testing; Allis-Chalmers tractors; Crawler tractors; Allis-Chalmers Manufacturing Company
    • "Official drawbar test no. 396. Allis-Chalmers HD 5B. 1948." Allis-Chalmers HD-5B crawler being driven on tractor test track in front of the test car, which is followed by two Load Tractors which generate the needed Drawbar Pull. The Hydraulic...
    • Nebraska Tractor Test Laboratory, Records

    • Tractors--Testing; Allis-Chalmers tractors; Allis-Chalmers Manufacturing Company; Crawler tractors
    • "Test #397 of Allis-Chalmers HD-19 during one of the drawbar tests." Rear view of Allis-Chalmers HD-19 crawler rounding the corner of the track with the Adams test car and four load tractors behind it.

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