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US Patent: 1,878,603
Lapping Machine
Patentee:
Albert E. Robinson (exact or similar names) - Cincinnati, Hamilton County, OH

USPTO Classifications:
451/114

Tool Categories:
metalworking machines : gear lapping machines
metalworking machines : grinders : lapping machines

Assignees:
American Tool Works Co. - Cincinnati, Hamilton County, OH

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Apr. 13, 1931
Granted: Sep. 20, 1932

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for American Tool Works Co.
Description:
Claim:

In a gear lapping machine, the combination of a housing, an arbor thereon, means for rotating said arbor in reverse directions, an additional housing, an arbor thereon, means on the proximate ends of said arbors for securing meshing gears to be lapped, a brake hub on said second-named arbor, brake shoes about said brake hub, shoes, pivot connections between portions of said spring respective sides of said pivot connections, and means for adjusting the pressures of said spring pressed d arranged for causing lapping contacts of both sides of the teeth of said meshing gears and for adjusting the pressures of said lapping contacts.

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