Compass saw with a connecting device for a flat saw blade

Details Compass saw with a connecting device for a flat saw blade Compass saw with a connecting device for a flat saw blade

1983-09-26

1985-11-05

Watts, Douglas D.

Cutlery

Cutting tools

Saw

83697, 279 8, 403342, B23D 4916

Patent

active

045505004

ABSTRACT:
In a compass saw formed as a hand-held machine tool a flat saw blade is connected with a flat reciprocating rod by a connecting device which comprises a cup-shaped clamping sleeve screwed on a rotary member formed with a through hole extended in the direction of elongation of the reciprocating rod the end of which is inserted into that hole. The shaft of the saw blade passes through a bore formed in the clamping sleeve and partially extends into the hole in the rotary member. Two opposing pins formed on the shaft of the saw blade limit the extension of the saw blade shaft into the hole of the rotary member. The end of the shaft is pressed against a recess formed in the reciprocating member, on the one hand, and the pins of the shaft are engaged in depressions formed in the rotary member, on the other hand, whereby clamping of the shaft of the saw blade with the end of the reciprocating rod in the clamping sleeve is ensured.

REFERENCES:
patent: 287809 (1883-11-01), Devereux
patent: 4020555 (1977-05-01), Hendrick
patent: 4277197 (1981-07-01), Bingham

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