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Originally called a laminated or carriage spring, and sometimes referred to as a semi-elliptical spring, elliptical spring, or cart spring, it is one of the oldest forms of vehicle suspension. A leaf spring is one or more narrow, arc-shaped, thin plates that are attached to the axle and chassis in a way that allows the leaf spring to flex ...
The U7144-T also towed a trailer with SCR-270 antenna support components. The U7144-T and White 444T had a maximum towed load capacity of 30,000 lbs, and both were powered by the same Hercules RXC 529 cu.in., 112HP, six-cylinder gasoline engine. [34]
A multi-leaf spring consists of a series of flat plates, usually of semi-elliptical shape. The flat plates are called leaves of the spring. The leaf at the top has maximum length. The length gradually decreases from the top leaf to the bottom leaf. The longest leaf at the top is called master leaf. It is bent at both ends to form the spring eyes.
These were often made of low-carbon steel and usually took the form of multiple layer leaf springs. [4] Leaf springs have been around since the early Egyptians. Ancient military engineers used leaf springs in the form of bows to power their siege engines, with little success at first. The use of leaf springs in catapults was later refined and ...
"Truck, Diamond, 4-ton, 6×6 with winch cargo" In 1939-1941 the Army Ordnance Corps was developing a complete line of tactical trucks that could operate over all roads and cross-country terrain in all weather. 4-ton (3,600 kg) load rated six-wheel drive trucks had been successful towing artillery in the 1930s, and the size would be standardized to tow the Field Artillery Branch's new 155 mm ...
After the U.S. Army purchased its first truck in 1907, of 5-ton payload capacity, [47] in the late summer of 1913, the Army Medical and Quartermaster Corps (QC) took a 3 ⁄ 4-ton QC field-truck, on a 922 mi (1,484 km) multi-leg experimental trek through Alaska for the state's Road Commission—both to try the truck's bad-road supply and ...