US Patent: 2,607,175 - Method of making precision gears


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US Patent: 2,607,175

Method of making precision gears

Patentee:

Joseph J. Osplack (exact or similar names) - Detroit, MI

USPTO Classifications:

451/219, 451/47

Tool Categories:

metalworking machines : gear making machines : gear hobbing machines

metalworking machines : grinders : gear grinding machines

Assignees:

Vinco Corp. - Detroit, MI

Manufacturer:

Vinco Corp. - Detroit, MI

Witnesses:

Unknown

Patent Dates:
Applied:	Feb. 28, 1946
Granted:	Aug. 19, 1952

Patent Pictures:

USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Vinco Corp.

Description:

The method of making precision gears relies on a hobbing grinder where the abrasive wheel has on its perimeter a helical thread of correct pitch and cross-section to generate the gear teeth; the blank is rotated in synchrony with the abrasive wheel. See patent 1,612,830 for a hobbing grinder of this type.