B - Operations – Transporting – 23 – Q
Patent
B - Operations, Transporting
23
Q
172/20, 143/82
B23Q 11/08 (2006.01) B23D 47/00 (2006.01) B23Q 11/00 (2006.01)
Patent
CA 1184126
ABSTRACT A circular saw having a cantilever beam which is adapted to be lifted and on which a sawing carriage including a saw blade is guided for horizontal movement, comprises a sound protection hood adapted to be lifted together with the cantilever beam. At its lower edge the sound protection hood has a flexible crush-proof apron which is made of a sound dampening flexible material and enters into sound-proof engagement with the table top of the circular saw when the cantilever beam with the sound protection hood are lowered into the operating position. Hold down devices mounted on the sound protection hood firmly hold the material to be sawed on the table top during the sawing process by means of strips which are of sound dampening material. The hold down devices are guided in parallel by a parallel guide means including racks and pinions so as to be biased "passively" with respect to the sound protection hood by means of pneumatic cylinders. The measures described effectively prevent undesired sound projection, particularly from the noiseful sawing process.
402196
Elhaus Friedrich W.
Sim & Mcburney
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