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Ephriam Shay's locomotive patent of 1881, for example, used double universal joints in the locomotive's drive shaft. [15] Charles Amidon used a much smaller universal joint in his bit-brace patented 1884. [16] Beauchamp Tower's spherical, rotary, high speed steam engine used an adaptation of the universal joint c. 1885. [17]
Starting in April 1904, Spicer's patented joint was initially manufactured through an arrangement with the Potter Printing Press Company in Plainfield, New Jersey. Spicer incorporated the Spicer Universal Joint Manufacturing Company in May 1905, shortening the name to Spicer Manufacturing Company in 1909. [1]
[citation needed] Universal joints are capable of higher misalignments. Single joint gear couplings are also used to connect two nominally coaxial shafts. In this application the device is called a gear-type flexible, or flexible coupling. The single joint allows for minor misalignments such as installation errors and changes in shaft alignment ...
A flush door is a completely smooth door, having plywood or MDF fixed over a light timber frame, the hollow parts of which are often filled with a cardboard core material. [citation needed] Skins can also be made out of hardboards, the first of which was invented by William H Mason in 1924.
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Hardy Spicer is a brand of automotive transmission or driveline equipment best known for its mechanical constant velocity universal joint originally manufactured in Britain by Hardy employing patents belonging to US-based Spicer Manufacturing. Hardy and Spicer soon became partners. Later Spicer became Dana Holding Corporation.