Stone working – Sawing – Rotary
Patent
1975-08-19
1977-03-29
Whitehead, Harold D.
Stone working
Sawing
Rotary
269 22, 279 4, B28D 104
Patent
active
040143112
ABSTRACT:
An improvement is provided in an apparatus for mounting and tensioning an inside diameter cutting blade which is mounted in a circular saw blade housing. The outer circumference of the blade is clamped within a mounting apparatus. Pressurized hydraulic fluid within a channel exerts pressure against the blade radially inward of the clamping means by exerting pressure on a fluid-tight gasket which, in turn, bears against the blade. By virtue of the uniform pressure distribution throughout the fluid, uniform tensioning of the blade is accomplished. The improvement comprises constructing the gasket in two pieces with an outer sleeve which contacts the hydraulic fluid, and which while deformable, is fixed relative to the housing, and a filler ring mounted within the sleeve and which is relatively movable with respect thereto. The improved gasket reduces the amount of fluid necessary, reduces set-up time and permits use of a filler ring which is more resilient than the outer sleeve and which, consequently, does not take as great a "set" thereby increasing the useful life of the gasket.
REFERENCES:
patent: 2843151 (1958-07-01), Greenawalt
patent: 3130978 (1964-04-01), Roojen
patent: 3827421 (1974-08-01), Schumacher
Silicon Technology Corporation
Whitehead Harold D.
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