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



Display: 20

    • 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; 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.
    • 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; Tractors--Testing; John Deere tractors; Deere & Company
    • Drawbar Test of John Deere L, Test#313, 1938. Tractor test on the dirt track. Th test car is the number 2 generation with the resistance trailer at the back. Apparently the Adams test car had a problem at the time.
    • 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
    • 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...
    • 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

    • 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...
    • Nebraska Tractor Test Laboratory, Records

    • 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...
    • Nebraska Tractor Test Laboratory, Records

    • Farm tractors--Testing; John Deere tractors; Deere & Company
    • "Testing John Deere Diesel R tractor." Three-quarter view from the front of the John Deere Diesel R tractor, which is on the test track in front of the test car. A man is standing near the front of the tractor while four other men at the rear...
    • Nebraska Tractor Test Laboratory, Records

    • Farm tractors--Testing; Massey-Harris Company; Massey-Harris tractors
    • "Weighing tractor and measuring drawbar height. Test 377." Side view of Massey-Harris 101R on a wooden surface outside the tractor test lab. A man is crouching behind the tractor and measuring the drawbar height. Another man is watching through...
    • Nebraska Tractor Test Laboratory, Records

    • Farm tractors--Testing; Minneapolis-Moline Company; Twin City tractors
    • "Doing a belt test on a Twin City tractor." The tractor is tested with a "Prony Brake" dynamometer, which is a friction based type and very unstable in maintaining a constant load. This test was probable set up for a demonstration, because the much...
    • Nebraska Tractor Test Laboratory, Records

    • Farm tractors; Farm tractors--Testing; Case tractors; Case Corporation
    • The Case tractors from tests 1328, 1329, and 1330 are shown outside the tractor test lab. The Case 4490 is shown from the side, and only the front of the tractor from test 1330 is visible beyond it. The tractor from test 1329 is shown from the...
    • Nebraska Tractor Test Laboratory, Records

    • Tractors; Farm tractors; Farm tractors--Testing; John Deere tractors; Waterloo Gas Engine Co.
    • Demonstration at the Tractor Test Lab. This Waterloo Boy's manufacturer was bought later by John Deere, was the first tractor tested at the University of Nebraska in 1920. The Waterloo Boy tractor is shown on the dirt test track during a drawbar...
    • Nebraska Tractor Test Laboratory, Records

    • Farm tractors--Testing; Equipment
    • "Carlton Zink showing belt test equipment to a visitor from Cuba." He is pointing to the weight scale part of the Belt Dynamometer Cradle. The scale is used to determine the Torque (and Horsepower by calculation) from the tractor belt drive or PTO...
    • Nebraska Tractor Test Laboratory, Records

    • Farm tractors--Testing; Ford tractors; Ford Motor Company
    • "A Ford tractor and a small International Garden Tractor shown with their matched test cars. The Ford is shown with the newer test car which consisted of the Adams Test Cab built on a frame with an Oliver 1850 tractor as power absorption and drive...

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