Weaver Auto twin Jack

The Weaver Manufacturing Company was incorporated in 1910 and grew to become the nation's largest manufacturer of garage equipment. They began in Springfield, Illinois by two brothers - Gailard and Ira Weaver (Ira Weaver was awarded over 100 patents for garage equipment, and in the industry he was known as "The Edison of the Automotive Industry"). Weaver Jack's earliest Jack (The Auto Twin Jack) was first manufactured in 1910, was widely advertised in 1912 and was issued a patent in 1914. Mechanical Jacks were still produced after the introduction of the fully hydraulic model in 1928. Other Weaver Products included Safety Test Lane Equipment --Brake Testers and Alignment Testers - which are still currently manufactured by Weaver Jack Corporation. Previous product lines included Automotive and Heavy Truck Lifts, Brake Tools, Hydraulic Presses, Headlight Testers and many other items.

They were Acquired by Dura Corporation (formerly Detroit Harvester) in 1959, and their operations were later moved to Paris, Kentucky in 1973. In 1977, the current Weaver Jack Corporation was established in Adrian, Michigan, where it operates to this day. The Auto Twin Jack on display demonstrates testimony to their heritage. In 1916, one of these jacks would have cost $10 dollars or $310.15 today for a “Regular” type that can lift a ton, or $18 or $558.28 today for the “Extra Heavy” type that can lift two tons. Both types came with two jacks. The flat pieces of metal above the back wells would have where the chassis of the car made contact with the jack, which would usually have been a Ford Model T; the handle and shaft would have moved the back wheel, allowing the car to easily move around the shop.