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The Holt tractors were a range of continuous track haulers built by the Holt Manufacturing Company of Stockton, California which were named after company...

The first artillery tractors were designed prior to the outbreak of World War I, often based on agricultural machines such as the Holt tractor. Such vehicles...

first workable crawler ("caterpillar") tractor design, incorporated the Holt Manufacturing Company in 1892. Holt Manufacturing Company was the first company...

successful track-type tractor. During World War I, Holt tractors were used to replace horses to haul artillery and other supplies. The Quartermaster Corps also...

constructed several series of the first petrol-engined four-wheel drive artillery tractors. These were some of the first commercially successful vehicles for...

merger of the Holt Manufacturing Company and the C. L. Best Tractor Company, creating a new entity, California-based Caterpillar Tractor Company. In 1986...

gun fire. During World War I, Holt tractors were used by the British and Austro-Hungarian armies to tow heavy artillery and stimulated the development...

failed. Holt bought the patents related to the "chain track" track-type tractor from Richard Hornsby & Sons in 1914 for £4,000. Unlike the Holt tractor, which...

howitzer Marks VI, VII and VIII (6, 7 and 8) were a series of British artillery siege howitzers on mobile carriages of a new design introduced in World...

power of crawling-type tractors drew the attention of the military. Holt tractors were used to replace horses to haul artillery and other supplies. The...

by the British Army, a (small) section of which wanted to evaluate artillery tractors. At one point in 1908, Major William E. Donohue of the Mechanical...

cope with the added weight. The tractor wheels added more weight to be towed, requiring the use of Holt artillery tractors to replace horses. In early 1917...

The Vickers Medium Dragon was a fully-tracked British field artillery tractor made by Vickers (later Vickers-Armstrongs), produced in various versions...

armoured tractor † Mark I converted to supply tank Mark I fitted with wireless communications Mark IX Pedrail Machine † Salvage Machine United States Holt 150...

were operated by siege batteries of the Royal Garrison Artillery (RGA). Holt caterpillar tractors were used to tow them into position. Mks I–V were limited...

heavy artillery tractors in January 1915. On 30 January it sent out its chief designer, Brillié, to investigate tracked tractors from the American Holt Company...

engineering vehicles and other military equipment, such as artillery tractors such as the Type 73 or M8 Tractor, to clear battlefield obstacles and prepare firing...

the war. This weapon, drawn by heavy Holt tractors, introduced road and cross-country mobility to the Coast Artillery, and allowed mobile defense of areas...

the Royal Artillery in November of the same year. Holt Company photographer Charles Clements was reported to have observed that the tractor crawled like...

categorization. Tractor Bulldozer (dozer, track dozer) Snowcat Snowplow Skidder Tractor (wheel tractor) Track tractor Locomotive Artillery tractor Crawler-transporter...