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All three were widely used in the late 1800s and very early 1900s
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1926 Holt 2-Ton. Benjamin Holt developed the first successful crawler tractor in 1904 and, in 1927, Holt Tractor Company and C. L. Best merged to form Caterpillar Tractor Company.
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In the 1920s and early 1930s, motor graders were assembled by mounting a grader onto an industrial tractor chassis. This Austin grader is powered by a McCormick-Deering 1020 tractor.
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c. 1928 Euclid wheeled scraper. Euclid Road Machinery's very successful line of earthmoving equipment and off-highway haulers arose from this small scraper.
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c. 1929 Adams Leaning Wheel No. 7 pull grader. The “Leaning Wheel” name alludes to the feature developed by J. D. Adams in 1885 to force the grader’s weight onto the blade, increasing its efficiency
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1929 Lima 101 shovel. The Lima Locomotive Works of Lima, Ohio, originally built these mschines on contract for the Ohio Steam Shovel Company until purchasing rights to the design
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When it was introduced in 1947, the Allis-Chalmers HD19 was the world's largest and most powerful crawler tractor.
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Gledhill Road Shaper. This machine used an arrangement of skids, controlled by hand cranks and a crude hydraulic pump, to finish the surface of a dirt or gravel road.
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..
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1934 Michigan Power Shovel T6D truck crane. Michigan was the first crane manufacturer to design its own carriers for truck cranes. Lifting capacity was 6 tons.
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1934 Michigan Power Shovel T6D truck crane. Michigan was the first crane manufacturer to design its own carriers for truck cranes. Lifting capacity was 6 tons.
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1937 J. D. Adams 301 grader on International Harvester I-30 wheel tractor. Has long, low moldboard for light grading.
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1935-1938 Buffalo-Springfield rollers. These three machines – two tandem rollers and a three-wheel – were donated by a company that left its 1930s phone number on them!
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1940 Cat No. 12 motor grader. Introduced in 1939, the No. 12 grader was still being produced, with major improvements of course, in the 2010s. The model number is derived from the length of its blade.
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Introduced in 1939, the No. 12 grader was still being produced, with major improvements of course, in the 2010s. The model number is derived from the length of its blade.
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The Bantam T-35 shovel on arrival at the Museum. Bantam got its start by mounting its excavators on reconditioned military trucks and halftracks that were surplus after World War II.
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1945 Bucyrus-Erie 15B backhoe. The ancestor of the hydraulic backhoe digs below grade by lowering the boom and pulling the bucket up and in, and dumps by raising the boom and drawing the bucket back.
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an example of the first self-contained truck cranes for over-the-road travel. Lifting capacity was 15 tons
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1946 LaPlant-Choate C84 pull scraper. Allis-Chalmers acquired LaPlant-Choate in 1952.
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this Hough HA was one of several models of wheel loaders built for industrial applications such as warehouses, factories, and car and ship unloading. It was built between 1947 and 1954.
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1947 Cat D4 with Trackson T4 Traxcavator.
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1948 Koehring 304 dragline/crane. From the 1920s through 1970s, most cable excavators - except for the giant mining machines - could be set up to work as a shovel, crane, dragline or backhoe.
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1948 Cat D2 with Trackson T2 Traxcavator. Derived from a design that originated in the late 1920s, the bucket is raised and lowered by a winch above the engine. This design was discontinued in 1953.
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1949 Cat DW10 tractor and 1950 No. 10 scraper. This outfit once belonged to late Museum volunteer Jack Campbell.
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caterpillar No. 33 Standard Frame pull grader.
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1950s Barber-Greene 543 bucket loader. The bucket flight in front elevates excavated material to a conveyor that transfers it to a dump truck behind the loader.
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c. 1950 LeTourneau C Tournadozer, an example of the first rubber-tired dozer. All functions are driven by electric motors, it steers by a toggle switch, and it has been modified for snow plowing.
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c. 1950 LeTourneau C Tournadozer, an example of the first rubber-tired dozer. All functions are driven by electric motors, it steers by a toggle switch, and it has been modified for snow plowing.
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1951 Cat D7 crawler tractor. The narrow, inside-mount dozer was specified by the U. S. Army to save space in shipping. It is also designed to push scrapers more efficiently during loading.
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1952 LeTourneau D Roadster motor scraper. Technically, the tractor is a D Roadster, and the scraper behind it is an E9 Carryall.
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1953 Cat HT4 crawler loader. Designed by Trackson and built on a modified Cat D4, the HT4 was the first all-hydraulic crawler loader offered by Cat. Bucket capacity is 1.25 cubic yards.
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1954 Galion Iron Works 503 motor grader. Almost 5,000 503s were built from 1953 through 1971. This one is equipped to handle a front dozer or snow plow.
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This 1955 International Harvester 2T-75 prime mover and 2S-75 scraper was designed by Heil. I-H entered the scraper market by buying the Heil line in 1954.
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This 1956 Lima 34 Paymaster shovel was beautifully restored by donor Sheldon Gray.
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1956 Warner & Swasey M2460 Gradall hydraulic excavator. The boom telescopes in and out, and the bucket can rotate 360 degrees.
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1956 Cat D2. Built from 1938 through 1957, the D2 was the smallest crawler tractor offered by Caterpillar.
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This 1956 Lima 34 Paymaster shovel was beautifully restored by donor Sheldon Gray
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This tractor was equipped with a second seat by the donor, the Ohio Operating Engineers Apprenticeship Fund, for use in equipment operator training.
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Built by Shovel Supply Company, this Ferguson 2511 roller utilizes an Oliver tractor power train. It compacts by kneading material between the front and rear rows of tires; fully ballasted, it weighs
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The 944 was the first wheel loader offered by Cat. It was discontinued in 1968 after the rigid frame had been made obsolete by an articulated frame for superior steering.
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1964 Cat No. 12E motor grader with scarifier. The pole next to the seat is for an umbrella.
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850hp, 249500 pound catipillar D11RCD carrydozer. the blade can push 57.9 yards if earth is a single pass.
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Standard features on the 260E and 310E (shown above) include auto dump, descent control, shuttle shifting, hill hold and load assist.
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The new CX750D replaces the CX700B and CX800B and is the largest machine in Case’s excavator lineup
