Metal tools and implements – making – Saw-making or furbishing device or machine – Sharpening and gumming
Patent
1992-11-20
1994-10-04
Lavinder, Jack W.
Metal tools and implements, making
Saw-making or furbishing device or machine
Sharpening and gumming
76112, 451403, B23D 6314
Patent
active
053515781
ABSTRACT:
A saw regrinding machine includes a circular saw blade mounted for rotation about an axis and having an indexing assembly. A side clamp secures the blade during a regrinding operation to prevent its movement and includes side clamping members having a clamping surface for frictionally engaging the surface of the saw blade that includes a surface portion formed of a resilient compressible material. During indexing the saw blade slides across the deformable resilient material but is not scratched or scuffed. The invention also provides a resilient compressible material as part of the surface of a slip clutch assembly in the form of O-rings surrounding magnetic members embedded in the surface of a flat plate. While magnetic attraction holds the saw blade in place against the plate, rotation is permitted where only the soft compressible O-rings are in contact with the surface of the saw blade. In this way rotation of the saw blade is accomplished without scratching or scarring its surface.
REFERENCES:
patent: 3952616 (1975-04-01), Varley
patent: 4088358 (1992-02-01), Emter
patent: 4102224 (1978-07-01), Wright
patent: 4655006 (1987-04-01), Block
patent: 4729193 (1988-03-01), Gant et al.
patent: 4846023 (1989-07-01), Emter
patent: 5152193 (1992-10-01), Emter
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