US Patent: 1,097,096


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Wrench

Patentees:

Henry H. Heuerman (exact or similar names) - Hillsboro, OR

Henry Hunteman (exact or similar names) - Hillsboro, OR

USPTO Classifications:

408/152, 408/197, 451/117, 81/176.15

Tool Categories:

wrenches : wrench adjustment types : screw adjust wrenches

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

Patent Dates:
Applied:	Sep. 30, 1913
Granted:	May 19, 1914

Patent Pictures:

Henry H. Heuerman and Henry Hunteman patent May 19, 1914

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Description:

The mechanics of this adjustable pin spanner would not have allowed for any rugged use. It was intended primarily to be used as a valve grinding and lapping tool. The screw at the bottom turns the adjusing gear; the screw on the side locks the adjustment.