Circular saw with annular saw blade

Details Circular saw with annular saw blade Circular saw with annular saw blade

1987-10-08

1988-12-27

Watts, Douglas D.

Cutlery

Cutting tools

Saw

30347, 51168, B27B 514

Patent

active

047930659

ABSTRACT:
In an annular saw force-exerting mechanism (56, 57) is provided so as to act on flange-equipped support rollers (40, 41) for the saw blade (8). The support rollers have at least one flange (44) engaging a groove in the web portion of the saw blade. The force-exerting mechanism acts essentially only in the axial direction of the support rollers essentially parallel to the plane of symmetry of the saw blade towards the centre of the saw blade. Alternatively, force-exerting mechanism is provided so as to act on a drive pulley for the saw blade essentially only in a direction perpendicular to the axis of rotation of the drive pulley, parallel to the plane of symmetry of the saw blade outwards from the centre of the saw blade. In both cases the drive surfaces (22, 38) of the drive pulley and the saw blade are pressed against each other, and the inner edge of the flange on the support rollers is pressed against the inner edge of the groove in the web portion of the saw blade.

REFERENCES:
patent: 2972363 (1961-02-01), Santilli
patent: 4352241 (1982-10-01), Johansson

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