Variable impact tool

Details Variable impact tool Variable impact tool

1976-10-12

1977-07-12

Jones, Jr., James L.

Metal deforming

By or with work-constrainer and/or manipulated work-forcer

81 5235, 29255, 29275, 72705, B21J 1308

Patent

active

040345947

ABSTRACT:
A variable impact jarring tool comprising a handled shaft with a massive impact sleeve slideable thereon. A self-tapping screw on the end of the shaft is driven to grip the workpiece and a first collar adjacent the handle serves as an anvil against which the sleeve impacts. A second collar may be fixed on the shaft in either of two positions, one adjacent the end for a full impact stroke and the other midway thereof for a limited stroke, but providing more clearance at the end for placement of the screw in close places.

REFERENCES:
patent: 1597159 (1926-08-01), Johnson et al.
patent: 2791926 (1957-05-01), Guyton
patent: 2934984 (1960-05-01), Woodman
patent: 3750500 (1973-08-01), Peterson
patent: 3875644 (1975-04-01), Simpson

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