Thomas M Gossage

US Patent:

41053478, Aug 8, 1978

Filed:

Apr 27, 1977

Appl. No.:

5/791501

Inventors:

Thomas M. Gossage - Daly City CA

International Classification:

F16C 1106

US Classification:

403157

Abstract:

The anchored end of a mast of a gin-pole derrick is pivotally mounted on a releasable connector. The connector comprises a pair of laterally spaced support brackets having a retaining pin reciprocally mounted thereon for movement between a first position attaching the mast on a large portion of the pin and a second position whereby the mast may be released and detached from a smaller portion of the pin. A compression coil spring is mounted between the pin and one of the support brackets to normally bias the pin to its former condition of operation, attaching the mast on the connector.

US Patent:

41730763, Nov 6, 1979

Filed:

Apr 27, 1977

Appl. No.:

5/791388

Inventors:

Thomas M. Gossage - Daly City CA

International Classification:

B43L 922
B25D 502

US Classification:

33 27B

Abstract:

A scriber-compass comprises a pair of first and second arms pivotally connected together at first ends thereof and a threaded rod, having a thumb nut threadably mounted thereon, adapted to selectively pivot the arms relative to each other to set the linear distance between second ends of the arms. A calibrated scale is formed on the rod to visually indicate such linear distance which coincides with the radius of a circle to be scribed on a work piece. A scibing point is formed on the second end of the first arm whereas an automatic punch is mounted on the second end of the second arm for automatically punching a centering hole upon depression of the punch against the workpiece and release of a spring-loaded impact member.