Vertical band saw machine

Details Vertical band saw machine Vertical band saw machine

2007-05-01

2007-05-01

Peterson, Kenneth E. (Department: 3724)

Cutting

By endless band or chain knife

With means to guard the tension

C083S814000

Reexamination Certificate

active

10940157

ABSTRACT:
A vertical band saw machine includes a base, an upright post extending from the base, amounting frame slidably retained relative to the upright post, upper and lower blade mounting pulleys and a tension-equalizing guider pulley rotatably mounted on the mounting frame, the base and the upright post, respectively, an endless band saw blade trained on the pulleys to define upper and lower inclined side paths, and a tension adjusting member disposed to displace the mounting frame between a loosened position to facilitate replacement of the blade, and a tensed position. The guider pulley is brought into synchronized movement with the mounting frame such that the ratio of lengths between the upper and lower inclined side paths is kept unchanged.

REFERENCES:
patent: 780425 (1905-01-01), Hinkley
patent: 1449015 (1923-03-01), Schenkel
patent: 1704428 (1929-03-01), Dempewolf et al.
patent: 1757785 (1930-05-01), Sullenberger
patent: 1879145 (1932-09-01), Erickson
patent: 2627288 (1953-02-01), Steiner
patent: 2798518 (1957-07-01), Gray
patent: 3390598 (1968-07-01), Sands et al.
patent: 4356750 (1982-11-01), Legler et al.
patent: 4413414 (1983-11-01), Strzalka
patent: 6591729 (2003-07-01), Novak

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