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The ball screw was invented independently by H.M. Stevenson and D. Glenn who were issued in 1898 patents 601,451 and 610,044 respectively. Early precise screwshafts were produced by starting with a low-precision screwshaft, and then lapping the shaft with several spring-loaded nut laps [citation needed].
The Fisher Body company, which made the car bodies for the Ford Motor Company, was one of Robertson's first customers and used over 700 Robertson screws in its Model T car. [12] Henry Ford , after finding that the screw saved him about 2 hours of work for each car, attempted to get an exclusive licence for the use and manufacture of the ...
Loring Coes (April 22, 1812 – July 13, 1906) was an American inventor, industrialist and Republican politician who invented the screw type wrench, commonly known as the monkey wrench and who served as a member of the Worcester, Massachusetts City Council and Board of Aldermen, and as a member of the Massachusetts House of Representatives [1] [2] in 1864–1865.
It was while they were living and working in Springfield that Loring Coes invented the screw wrench commonly known as the monkey wrench.Prior to the invention of the screw wrench, the two common wrenches of the time, the English patent wrench and the Merrick wrench (also known as the Springfield wrench), needed two hands to adjust, whereas the new screw wrench could be used and adjusted with ...
A lathe of 1871, equipped with leadscrew and change gears for single-point screw-cutting A Brown & Sharpe single-spindle screw machine. Fasteners had become widespread involving concepts such as dowels and pins, wedging, mortises and tenons, dovetails, nailing (with or without clenching the nail ends), forge welding, and many kinds of binding with cord made of leather or fiber, using many ...
In contrast, today's ball is made with crystal, measures 12 feet in diameter, weighs 11,875 pounds, and is lit by more than 30,000 LEDs. ... Before the Times Square ball was invented, people would ...
Maudslay was the fifth of seven children of Henry Maudslay, a wheelwright in the Royal Engineers, and Margaret (nee Whitaker), the young widow of Joseph Laundy. [1] His father was wounded in action and so in 1756 became an 'artificer' at the Royal Arsenal, Woolwich (then in Kent), where he remained until 1776 [2] and died in 1780.
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