Universal hammer having interchangeable heads

Details Universal hammer having interchangeable heads Universal hammer having interchangeable heads

1983-03-10

1984-04-03

Schmidt, Frederick R.

Bridges

145 2R, 145 36, 403318, 403324, B25C 100

Patent

active

044402066

ABSTRACT:
A universal hammer having separable handle and head portions to permit the use of interchangeable heads. The head is formed with a female threaded bore which threadedly engages a male threaded shank. A cross hole is formed through both the head and the shank so that a pin may be inserted to retain the separable parts against relative rotation. A collar is also threaded to the shank and has a cylindrical portion which surrounds the cross bore to prevent removal or loss of the pin. A locking nut jams against the collar to prevent it from becoming loose.

REFERENCES:
patent: 129164 (1872-07-01), Pearce
patent: 235244 (1880-12-01), Howe
patent: 318981 (1885-06-01), Green
patent: 495607 (1893-04-01), Barney
patent: 1111277 (1914-09-01), Trainor
patent: 2501757 (1950-03-01), Cagle
patent: 2837381 (1958-06-01), Sarlandt
patent: 3385334 (1968-05-01), Clay

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