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  • All fields: Farm tractors--Testing
(120 results)



Display: 20

    • Larsen Tractor Museum, Records

    • Deere & Company; John Deere tractors; Farm tractors--Testing
    • "Checking the time clock on a John Deere tractor." Every tractor on test was provided with a mechanical time clock which recorded a time log of operating and stopping times during the test, This recording was made by a pen on a pressure sensitive...
    • Larsen Tractor Museum, Records

    • Farm tractors--Testing
    • Title: "An early tractor test with a truck used as a load unit." An unidentifieds tractor on a dirt track towing the test car and a specially modified truck. Unfortunately there is no record of this type of load truck. Its towing resistance was...
    • Larsen Tractor Museum, Records

    • Farm tractors--Testing
    • Drawbar Test of Minneapolis Moline 12-25, Test # 13, 1920. The test car shown is the first one (the bathtub with a roof!) used. The interesting thing is the "fifth-wheel steer" system which must have made for difficult steering with the wide axle.
    • Larsen Tractor Museum, Records

    • Farm tractors--Testing
    • Deawbar test of Allis Chalmers "U". They use truck as load unit. No information available on the truck. Side view of the tractortowing the second test car and the load truck. This test was performed at Hoffmann Estates in Illinois
    • Larsen Tractor Museum, Records

    • Farm tractors--Testing
    • John Deere L drawbar test with the oldest NTTL test car and a load generating trailer. The two-wheeled load vehicle used a hydraulic pump and a valriable restriction to generate resistance on the trailer wheels. The resistance generated heat and...
    • Nebraska Tractor Test Laboratory, Records

    • Farm tractors--Testing; Allis-Chalmers tractors; Allis-Chalmers Manufacturing Company; Garden tractors
    • "1948. Test no. 398. Allis-Chalmers G during the drawbar test. The Allis-Chalmers G is towing the Adams Test Car, which has a load generating attachment behind it. Two operators are on the load unit The old test lab and various tractors are in...
    • Nebraska Tractor Test Laboratory, Records

    • Farm tractors--Testing; Allis-Chalmers tractors; Allis-Chalmers Manufacturing Company
    • "1940. First step in preparing for test is the Oil drain & new oil weighed in. Test no. 363. Carlton Zink, Harold Schudt." The men are crouching at the side of the Allis-Chalmers C and draining oil into a pan beneath the tractor.
    • Nebraska Tractor Test Laboratory, Records

    • Farm tractors--Testing; Allis-Chalmers tractors; Allis-Chalmers Manufacturing Company
    • Allis-Chalmers 7580 during a drawbar test. The three tractors behind the Allis Chalmers are "load units" or "load tractors" which help generate resistance on the drawbar. The 7580 was the tallest tractor to be tested until that time and a new...
    • Nebraska Tractor Test Laboratory, Records

    • Farm tractors--Testing; Allis-Chalmers tractors; Allis-Chalmers Manufacturing Company; Villmer, Louie; Olson, Gordon; Hurlbut, L.W.; Cannon, Craig
    • "1948. Engine inspection following test no. 399 A-C WD. Louie Villmer, Gordon Olson, L.W. Hurlbut, Craig Cannon. Louie Villmer is on his back beneath the tractor. The other three men are gathered around a small table, on which are parts of the...
    • Nebraska Tractor Test Laboratory, Records

    • Farm tractors--Testing; Carlisle, John; Oliver tractors; Oliver Corporation
    • "John Carlile was head technician at the tractor test lab from the earrly 60-ies to the late 80-ies." here he is seen inspecting an Oliver tractor after the tests have been completed. John also built the Oliver Test car and many of the...
    • Larsen Tractor Museum, Records

    • Farm tractors--Testing; Case Corporation; Case tractors
    • From the photograph it is not clear which Case model this is, but it is one of a series tested track prepping runs used at that time to prepare the track surface for the Drawbar test.
    • Nebraska Tractor Test Laboratory, Records

    • Farm tractors--Testing; Case Corporation; Case tractors
    • 1969 or 1970 model Case during drawbar test #1030 to #1035." The tractor tows the Oliver test car plus a load tractor. The Cushman three-wheeler was used to carry the early sound measuring equipment which was later moved into the rear test-car cab,...
    • Nebraska Tractor Test Laboratory, Records

    • Farm tractors--Testing; Case tractors; Case Corporation
    • "930 Case is being tested to determine the location of the center of gravity as part of a tractor tip-over Teaching Program of Professor George Steinbruegge. Side view of the Case 930 Comfort King tractor with cab, suspended off the floor by chains...
    • Nebraska Tractor Test Laboratory, Records

    • Farm tractors--Testing; Dynamometer; Equipment
    • Dynamometer Contol panel for the large Westinghouse DC dynamometer. The image shows the dynamometer controls on the right; a scale dial (reading provides torque when it is multiplied by torque arm) On the left there are the various revolution...

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