Quad - brand of 4x4 truck The Jeffery Quad, also known as the Nash Quad or Quad is a four-wheel drive truck that was developed and built by the Thomas B. Jeffery Company from 1913 in Kenosha, Wisconsin and after 1916 by Nash Motors, which acquired the Jeffery Company. Production of the Quad continued unchanged through 1928.
The Quad introduced numerous engineering innovations. Its design and durability proved effective in traversing the muddy, rough, and unpaved roads of the times. The Quad also became one of the most successful vehicles in World War I. The Quad was produced in large numbers by Jeffery and Nash, as well as under license by other truck makers. Nash Motors was founded in 1916 by former General Motors president Charles W. Nash who acquired the Thomas B. Jeffery Company. Jeffery's best-known automobile was the Rambler whose mass production from a plant in Kenosha, Wisconsin began in 1902.

Thomas Buckland Jeffery (5 February 1845 Ц 2 April 1910) was an inventor and manufacturer of bicycles and early automobiles.
Jeffery was serious about motor cars so he sold his stake in G&J and founded the Thomas B. Jeffery Company.
Charles Thomas Jeffery (13 May 1876 Ц 10 Nov 1935) was an American businessman.
He was the son of Thomas B. Jeffery, founder of Thomas B. Jeffery Company, an automobile manufacturer.
When his father died in 1910, Charles Jeffery assumed control of the Thomas B. Jeffery Company. Under his guidance, the firm continued to prosper. His most significant success was in the large number of heavy-duty trucks he manufactured.
The U.S. Army was Jeffery's best customer during the years of World War I. The four-wheel, chain-drive Jeffery Quad eventually became the workhorse of the Allied Expeditionary Force.

1910 (Jun 10) Ц Charles T. Jeffery incorporates the family's car business as a $3 million public stock company.
1914 Ц Charles T. Jeffery replaces the Rambler name with the Jeffery moniker in honor of Thomas B. Jeffery.
1915 Ц Charles T. Jeffery survives the sinking of the RMS Lusitania off the Irish coast
1916 (Aug) Ц Charles Jeffery sells the company to former General Motors Corp. President Charles W. Nash.
Nash Motors was founded in 1916 by former General Motors president Charles W. Nash who acquired the Thomas B. Jeffery Company. Jeffery's best-known automobile was the Rambler whose mass production from a plant in Kenosha, Wisconsin began in 1902.
The four-wheel drive Jeffery Quad truck became an important product for Nash. Approximately 11,500 Quads were built between 1913 and 1919. They served to move materiel during World War I under severe conditions. The Quad used Meuhl differentials with half-shafts mounted above the load-bearing dead axles to drive the hubs through hub-reduction gearing. in addition to featuring four-wheel steering. The Quad achieved the reputation of being the best four-wheel drive truck produced in the country. The newly formed Nash Motors became the largest producer of four-wheel drives. By 1918, capacity constraints at Nash meant the Paige-Detroit Motor Car Company began to assemble the Nash Quad under license and Nash patents. Nash became the leading producer of military trucks by the end of World War I. After the war ended, surplus Quads were used as heavy work trucks in fields such as construction and logging. Charles Williams Nash (January 28, 1864 Ч June 6, 1948) was a United States automobile entrepreneur and served as an executive in the automotive industry.
He bought out the Jeffery Motor Company in August 1916. In 1917, renamed it as Nash Motors. The 1917 Nash Model 671 was the first vehicle produced to bear the name of the new company's founder. The new company was successful, with sales totaling 31,008 trucks and cars by 1919.
The Nash Quad was first manufactured in 1914 by the Thomas B. Jeffrey Company, which was located in Kenosha, Wisconsin. It became quite popular during World War I and was used by the armed forces of not only the United States, but also Russia, France and Britain. One of the first motor vehicles to offer four-wheel drive, the Quad proved very suitable to the rough, unpaved roads of the time. In 1916, Jeffrey sold the production rights to the Nash company. Because of its popularity, it was produced in large numbers, including license production by Hudson, National, and Paige-Detroit. Exact numbers aren't known, but apparently over 11,000 were produced in 1918 alone.
1918 Nash Nash-Quad trucks saw the "front" at France and served in Russia, Britain and other Allied nations during WWI. These 4WDs clawed through mud and muck, replacing horses. 11,000 Nash-Quad units were built during 1918. Surplus units served for decades after the Great War.
The four-wheel drive Jeffery Quad truck became an important product for Nash. Approximately 11,500 Quads were built between 1913 and 1919. They served to move materiel during World War I under severe conditions. The Quad used Meuhl differentials with half-shafts mounted above the load-bearing dead axles to drive the hubs through hub-reduction gearing.in addition to featuring four-wheel steering. The Quad achieved the reputation of being the best four-wheel drive truck produced in the country. The newly formed Nash Motors became the largest producer of four-wheel drives. By 1918, capacity constraints at Nash meant the Paige-Detroit Motor Car Company began to assemble the Nash Quad under license and Nash patents. Nash became the leading producer of military trucks by the end of World War I. After the war ended, surplus Quads were used as heavy work trucks in fields such as construction and logging.
In July, 1916, he organized the Nash Motors Company and took over the Thomas B. Jeffrey Company of Kenosha, Wisconsin.
Jeffrey Quad Lorry The Jeffrey Quad was one of the most used trucks in World War One. It was designed by the Thomas B Jeffrey Company in Kenosha, Wisconsin in the USA. The Jeffery was developed as a result of a visit by the US Army Quartermaster Corps to the Thomas B. Jeffery factory at Kenosha, Wisconsin in 1913. It was 2-ton four-wheel drive vehicle, with drop-side tray and a 2-seat cab. The truck was fitted fitted with a 4-cylinder Buda side-valve motor of 4.87 litres. The gearbox had four forward ratios plus reverse. It had steering on all four wheels, which gave it a very small turning radius of just 8.5 meters. All wheels were braked, and it was said that the truck could be brought to a standstill from its top speed (about 20 mph) in its own length. Production of the truck started in 1913, with a peak of 11.490 Quads delivered in 1918.
Albert Mroz about Nash-Quads and Jeffrey

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