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  • All fields: Crawler tractors
(43 results)



Display: 20

    • Holt Caterpillar

    • Holt Caterpillar

    • Crawler tractors; Tractors; Caterpillar Inc.

    • Holt Caterpillar, Winnipeg, Canada, 1910. Note the 5th wheel steering system, which was the same as that used on steam engine tractors. The 1917 Waterloo Boy tractor at the Larsen Museum is also a fifth wheel steer tractor.
    • Allis-Chalmers HD-14 Diese; Belt test

    • Allis-Chalmers HD-14 Diese; Belt test

    • 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...
    • Caterpillar crawler tractor

    • Caterpillar crawler tractor

    • 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.
    • "Early test, crawler tractor."

    • "Early test, crawler tractor."

    • 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.
    • "Test no. 397.  Belt test of HD-19."

    • "Test no. 397. Belt test of HD-19."

    • Farm tractors--Testing; Tractors--Testing; Allis-Chalmers tractors; Allis-Chalmers Manufacturing Company; Crawler tractors

    • Inside the tractor test lab a belt is shown attached from equipment within the wall to the Allis-Chalmers HD-19 crawler. Only a small portion of the crawler's tread and the attachment of the belt is shown in the left foreground. In the...
    • Allis-Chalmers G & Allis-Chalmers HD-19

    • Allis-Chalmers G & Allis-Chalmers HD-19

    • 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.
    • Caterpillar 22 and D-8

    • Caterpillar 22 and D-8

    • Tractors; Caterpillar Inc.; Crawler tractors

    • Size comparison. Photograph of the Caterpillar 22 and D8 diesel crawlers parked beside one another. They are on a dirt track behind the Ag. Engineering building. They were tested in the same year.
    • Allis-Chalmers HD-19, Test 397

    • Allis-Chalmers HD-19, Test 397

    • 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.
    • Allis-Chalmers HD-14; Belt Test

    • Allis-Chalmers HD-14; Belt Test

    • Farm tractors--Testing; Tractors--Testing; Allis-Chalmers tractors; Crawler tractors; Allis-Chalmers Manufacturing Company

    • The Allis-Chalmers HD-14 diesel crawler is shown from the rear inside the tractor test lab. Carlton Zink stands beside the belt pulley to measure drive pulley speed with a handheld tachometer. The driven pulley speed on the dynamometer and the...
    • Caterpillar D4 Diesel

    • Caterpillar D4 Diesel

    • Tractors--Testing; Caterpillar Inc.; Crawler tractors

    • "Caterpillar D4 Diesel during belt test." Caterpillar D4 Diesel crawler inside the old tractor test lab with a belt running from the rear of the tractor to the dynamometer inside the control room
    • HD 19 Belt Power Test #397, 1948.

    • HD 19 Belt Power Test #397, 1948.

    • Farm tractors--Testing; Tractors--Testing; Allis-Chalmers tractors; Allis-Chalmers Manufacturing Company; Crawler tractors; Haller, Ted; Flamm, Joe

    • Official belt test no. 397 Allis-Chalmers HD19." The Allis-Chalmers HD-19 crawler on berlt power test inside the tractor test lab. Technician Joe Flamm stands measuring belt speed with a hand-held tachometer. Ted Haller reads the air temps on the...
    • Allis-Chalmers HD-19

    • Allis-Chalmers HD-19

    • 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.
    • Allis-Chalmers HD-19, Test 397;max DB-pull

    • Allis-Chalmers HD-19, Test 397;max DB-pull

    • Farm tractors--Testing; Tractors--Testing; Allis-Chalmers tractors; Allis-Chalmers Manufacturing Company; Crawler tractors

    • "Test no. 397. Max. drawbar pull test. 37,556 lbs pull was obtained. The Allis-Chalmers HD-19 crawler is on the test track towing the Adams test car. The latter is towed separately from the 4 "load tractors" because of the lesser strength of its...
    • Allis-Chalmers Special K crawler;Drawbar Test

    • Allis-Chalmers Special K crawler;Drawbar Test

    • Farm tractors--Testing; Tractors--Testing; Allis-Chalmers tractors; Allis-Chalmers Manufacturing Company; Crawler tractors

    • Allis-Chalmers Special K crawler towing the old tractor test car and a load tractor outside the tractor test lab. In the background is the East Campus Power Plant and some of the tractors used as load units during drawbar tests.

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