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US Patent: 275,393
Machine for Forming Key-Seats in Hubs of Gears, &c.
Lucius J. Knowles - Worcester, MA

USPTO Classifications:
409/259, 409/279, 409/284

Tool Categories:
metalworking machines


Not known to have been produced

Henry H. Merriam
Albert A. Barker

Patent Dates:
Applied: Apr. 04, 1882
Granted: Apr. 10, 1883

Patent Pictures:
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The nature of my invention relates to machines for cutting the key seats or slots in the hubs of gears, pulleys,or parts requiring similar slote cut in the same. It consists in the combination of a horizontal arbor, provided with an inclined or tapering cutter, (which is operated longitudinally by a suitable mechanism, hereinafter more fully described,) with a plate and stud, which support the gear or other part to be operated upon. It also consists in the combination, with the aforesaid supporting stud and plate and bed of the machine, of the horizontal arbor and its actuating mechanism, hereinafter described.

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