Annular saw blade

Details Annular saw blade Annular saw blade

1984-04-27

1987-03-03

Watts, Douglas D.

Cutting

Tool or tool with support

Toothed blade or tooth therefor

30389, B23D 5700, B27D 3302

Patent

active

046466070

ABSTRACT:
In an annular saw, that is to say a circular saw with an annular saw blade, the saw blade is adapted to rotate about an imaginary center axis by being driven via a drive shaft which is parallel to the center axis and has a fulcrum between the annular saw blade and its center. Mounted on the drive shaft (27) are two drive rollers (25, 26), of which the adjacent surfaces (41, 42) are bevelled at a certain bevel angle so that the rollers comprise drive surfaces which, between them, form a wedge-shaped groove (40). The two lateral surfaces of the saw blade (8) are bevelled in a corresponding manner within a region (13) close to the inner edge (15) of the saw blade, the bevel angle being the same as for the drive rollers, the bevelled edge portion of the annular saw blade being clamped between the bevelled drive surfaces of the drive rollers in the wedge-shaped groove. The invention also relates to the annular saw blade, the inner edge portion (13) of which is symmetricaly bevelled to comprise encircling bevel surfaces (14).

REFERENCES:
patent: 3930310 (1976-01-01), Santilli
patent: 4316328 (1982-02-01), Duggan et al.

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