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    • 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; 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; Engines; Overholt, L.E.; Schnitter, John G.
    • Measuring valve lift following official test. Jack Schnitter is in the right foreground, measuring the valve lift. L.E. Overholt is on the other side of the tractor and assisting with the measurement. The tractor is unidentified.
    • Nebraska Tractor Test Laboratory, Records

    • Farm tractors--Testing; Oliver tractors; Oliver Corporation; Burns, Pete; Dommel, Homer
    • "1947. Drawbar test of Oliver Row Crop 88HC. Test no. 388. Pete Burns & Homer Dommel are the company representatives. Pete Burns in the driver's seat. Homer Dommel (Oliver Rep)mis standing near the tractor's rear tire. The Adams test car and the...
    • Nebraska Tractor Test Laboratory, Records

    • Farm tractors--Testing; Planimeter
    • 1941. Carlton Zink, Director at the lab from 1930-1942, showing an assistant how to use a Planimeter. The traction cylinder recorder creates a trace on a paper strip (shown). The Planimeter follows the trace on the strip of paper and gives the area...
    • Nebraska Tractor Test Laboratory, Records

    • Tractors--Testing; Garden tractors; Larsen, Lester F., 1908-2000; Larsen, Danny; Powell, Lou; Arms, Milo; Sabe, Abou; Furst, Bob; Heller, Ray
    • "1946. First tractor tested following World War II. Test no. 379. L.F. Larsen, Danny Larsen, Lou Powell, Milo Arms, Abou Sabe, Bob Furst, Ray Heller." Group photo of men and a boy gathered around an Ellinwood 3000-1 Bear Cat. The Adams tractor...
    • 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; John Deere tractors; Deere & Company
    • Official belt test no. 373 of the John Deere LA in 1941 The John Deere is driving the dynamometer which is located in the room seen to the left in the photograph. The Director, Carlton Zink, is showing test data to a technician and another...
    • Nebraska Tractor Test Laboratory, Records

    • Farm tractors--Testing; Tractors--Testing; Caterpillar Inc.
    • Text states: "1940. Checking engine R.P.M. during test no. 357." The Caterpillar D-8 is shown from the rear, where the belt pulley is located. A test engineer is measuring the belt pulley RPM with a handheld Tachometer (an RPM counter) touching...
    • Nebraska Tractor Test Laboratory, Records

    • Farm tractors--Testing; Scales
    • 1940. Oil used during test is weighed. Before the test oil is drained from the tractor. New oil is weighed and put in the tractor. After the tests the oil is drained and weighed again. The difference is the oil used during the test. The photograph...
    • Nebraska Tractor Test Laboratory, Records

    • Farm tractors; Gibson tractors; Gibson Manufacturing Company; Smith, C.W.; Warner, Charles J., 1875-1955; Hurlbut, L.W.
    • "1948. New models Gibson H & I Tractors. C.W. Smith (Faculty Member of Ag. Eng.) Chas. Warner (State Senator). L.W. Hurlbut (Department Head of Ag. Eng.)) are standing between the Gibson tractors, which are parked west of the old Tractor Test...
    • 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; Ford tractors; Ford Motor Company
    • Ford tractor with a Two-post roll bar during a drawbar test. The Oliver test car, which was used from the 60-s till well into the 90-s (and is still used occasionally) had the Adams test cab on it which contained the test measurement equipment. The...
    • 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

    • Larsen, Lester F., 1908-2000; Farm tractors; Ferguson tractors
    • "Test no. 392. Ferguson TE-20. L.F. Larsen & R. Hautzenroeder." Side view of Ferguson TE-20 tractor on the dirt test track. Hautzenroeder is on the driver's seat of the tractor and Larsen is standing by the side of the tractor.

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