Blade tensioning mechanism for parallel arm saw

Details Blade tensioning mechanism for parallel arm saw Blade tensioning mechanism for parallel arm saw

1986-05-06

1988-02-16

Schran, Donald R.

Cutting

Means to drive or to guide tool

With tool tensioning means

83784, B27B 1912

Patent

active

047247355

ABSTRACT:
A blade tensioning mechanism for use with a parallel arm saw. A bolt extends between one end of the arms which are pivotably mounted along their length to the supporting framework of the saw and a saw blade is held between the other ends of the arms. A camming device is coupled with one end of the bolt and exerts a camming force on one of the arms when the device is rotated in one direction. This force caused the ends of the arms coupled with the bolt to move together and causes the other ends of the arms to spread apart, and securely hold the saw blade by tension. Rotation of the camming device in the other direction relaxes the tension force for removal and replacement of the blade.

REFERENCES:
patent: 46015 (1865-01-01), Moyer
patent: 164787 (1875-06-01), Westcott et al.
patent: 1810349 (1931-06-01), Green
patent: 2969815 (1961-01-01), Lasar
patent: 4503742 (1985-03-01), Sutton

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