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US Patent: 1,191,240
Valve Spring Holder
Patentee:
Bert R. Simmons - Kansas City, KS

USPTO Classifications:
29/218

Tool Categories:
specialty tools : valve spring tools

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
B. B. Braun
Frank S. Ratcliffe
Nellie M. Shine
W. E. Bodley

Patent Dates:
Applied: Jul. 28, 1915
Granted: Jul. 18, 1916

Patent Pictures:
Bert R. Simmons patent July 18, 1916
USPTO pdf tiff
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Description:
Valve spring compressor for internal combustion engine valves. Features of this design are the stamped metal parts, and the range of spring lengths that can be worked due to the adjustable pivot points in the linkage between the adjusting screw and jaws.

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