It was a wet-sleeved, indirect injected, seven-main bearing six and weighed in at 2805 pounds. The 691 saw use in a great many applications beside the crawler, including marine and stationary operation. It had a 461ci, 68 brake horsepower, four-cylinder little brother with the same bore and stroke that was used in the TD-14 crawler and other applications. It was a part of International’s second generation family of diesels and they pushed them in a big way. Subscribe Our Weekly Newsletter The IH 691ci 6-cylinder diesel debuted about the same time as the TD-18. It got very much more serious when World War II began for the U.S. Anticipating war in some form, an American rearmament push began in the late 1930s and that push included crawlers. Cat would challenge it in 1940 with their D7 and Allis-Chalmers with the HD10W and HD-14 in 19. It had their biggest six-cylinder tractor diesel of the day, the 691 cubic (TD-18 later called the D691), and was designed to compete with the Allis-Chalmers L and others in the big crawler market. The TD-18 was the big boy in the IH “TracTracTor” line. The first TD-18 rolled off the line Octoand sales began in 1939. During World War II, one of the many items making up the shaft was the Heavy Tractor, M1 (IHC TD-18), a military version of the International Harvester TD-18 crawler. That shaft is made up of everything from apple sauce to zerox ink. Those are part of what makes the tip of the spear but the best spear tip is of no use without the shaft that carries it to the enemy. "It's kind of fun to be able to make a living at what you like to do," he says.When a country goes to war, it’s army needs more than bombers, tanks, cannons, rifles and ammunition. Today, Logue heads a $5.25 million construction business with 125 employes. Despite the objections of his father, Logue began digging wells and basements with his own Caterpillar. His facination for the Caterpillar tractor led Logue to quit what he called a "respectable, good engineering job" in 1957, to work with bulldozers full time. In an interview with the local newspaper in Williamsport, Pa., he said it has "had a profound effect. Not to mention what the tractor has done for George Logue. Today, tractor customers expect their vehicle to live a functioning life of about 20,000 hours: roughly the equivalent of one million miles of automobile travel, the Smithsonian claims. So when they were shipped they were identified only as water tanks for British troops in Egypt. The armor-plated machines with tractor treads considered a secret weapon. In fact, the word "tank" originated because of the way in which the new weapons were shipped overseas during the first World War. Militarily, they were first used by the Allies in 1916. The track-type tractor has more than doubled farm output per man-hour since they were first put into mass use 50 years ago. There are millions of tractors on farms across the nation today. Nearly 5,000 were produced between 19, selling for about $1,100.īut that tractor represents only one of the many manifestations of Holt's dream machine. The "Model A" of the tractor business, the "Cat 10" was the smallest ever built by Caterpillar. "What would transportation be without the bulldozer? What would our roads, shipyards, airports, anything be like? It all has to start with the bulldozer." "It's a totally American invention," Logue says of the Caterpillar tractor. Logue of Trout Run, Pa., a businessman who has collected over 50 antique pieces of caterpillar equipment since he first developed a passion for them living on a farm at age five. The "Cat 10" on display is a gift from George E. in 1925 that created the Caterpillar Tractor Co., which is today the largest crawler-tractor manufacturing firm in the country. It was a merger of the Holt Manufacturing Co. In celebration of the 75th anniversary of that tractor, the Smithsonian Institution's Museum of History and Technology put on display last week a 1929 Caterpillar tractor called the "cat 10." The invention of the diesel-powered traction machines that could move over land too soft to support horsedrawn or wheeled tractors caused a revolution not only in the farming business but in the construction and military businesses as well: Holt's track-drive principal was applied later to everything from bulldozers to the World War I military tank. On Thanksgiving Day, 1904, grain harvester manufacturer Benjamin Holt tested a new earth moving machine on a farm near Stockton, Calif.īy the time he finished his experiment, more than just earth moved.
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