US Patent: 788,500 - Gearing for Lathe Head-Stocks


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US Patent: 788,500

Gearing for Lathe Head-Stocks

Patentee:

Nicholas D. Chard (exact or similar names) - Cincinnati, OH

USPTO Classifications:

74/333

Tool Categories:

industrial machines : industrial machine mechanisms : industrial machine gearing

metalworking machines : metal lathes

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

Luise Beck

Oliver B. Kaiser

Patent Dates:
Applied:	Sep. 12, 1904
Granted:	Apr. 25, 1905

Patent Pictures:

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Description:

Wood & Wood - patent attorneys

My invention relates to an improved eccentric device for bringing into operation the back gears of an engine-lathe. The principal object of the invention is to mount two or more of the back gears upon a revolving shaft parallel with the spindle,which shaft is solidly journaled at each end in bearings, the shaft being eccentric to the bearing, and providing means for swinging this shaft bodily to and from the spindle for intermeshing back gears. It is well known that a shaft to which gearwheels are fixed, revolving in bearings at each end of the shaft, is a superior arrangement to journaling a sleeve upon the shaft. The arrangement of this invention permits of the constant supply of oil to the bearings at each end of the shaft, and it reduces the friction and bearing surface to a minimum.