Christopher Miner Spencer
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Christopher Miner Spencer was an American inventor, from Manchester, Connecticut, who invented the Spencer repeating rifle, one of the earliest models of lever-action rifle, a steam powered "horseless
Christopher spencer
Automatic lathe
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In metalworking and woodworking, an automatic lathe is a lathe with an automatically controlled cutting process. Automatic lathes were first developed in the 1870s and were mechanically controlled. Fr
Christopher Miner Spencer
…rifle, one of the earliest models of lever-action rifle, a steam powered "horseless carriage", and several other inventions. He developed the first fully automatic turret lathe, which in its small- to medium-sized form is also known as a screw machine. Spencer worked for Samuel Colt’s factory, where he learned the arms-making…
Fay automatic lathe, 1921.
Brown & Sharpe Single Spindle screw machine. Model #2 Square Base, four-slide machine. 11⁄2 cap or 13⁄4 Air Feed.
Brown & Sharpe No. 1 wire feed screw machine. B&S persisted in calling manually operated turret lathes "screw machines" long after most machinists were reserving that term to refer specifically to cam-op automatics.
Close up view of a Brown & Sharpe Single Spindle screw machine. Notice the six station turret, the front and rear slides, and the two vertical slides. Also notice the black shaft just over the turret for use of swing stop.