Drive belt tension control apparatus for inverted rooter

Details Drive belt tension control apparatus for inverted rooter Drive belt tension control apparatus for inverted rooter

1989-02-22

1990-01-16

Bray, W. Donald

Woodworking

Shaping machine

Heel forming

144136R, 144145A, 409 97, 409110, 474110, 474114, B27C 502

Patent

active

048936618

ABSTRACT:
An inverted router characterized by having a drive motor, a motor driven pulley, a spindle drive pulley and a drive belt for transferring power from the motor driven pulley to the spindle and drive belt tension control apparatus. The drive belt tension control apparatus comprises a mounting plate for mounting the motor driven pulley in variable spaced-apart relation to the spindle drive pulley and a pneumatic cylinder and piston assembly for exerting a predetermined pressure on the motor drive pulley and thereby a predetermined tension on the drive belt.

REFERENCES:
patent: 700813 (1902-05-01), Phillips
patent: 2563655 (1951-08-01), Martensson
patent: 2782817 (1957-02-01), Steiner
patent: 3872801 (1975-03-01), Weddendorf
patent: 3916965 (1975-11-01), Attridge et al.
patent: 4051742 (1977-10-01), Johansson et al.
patent: 4094205 (1978-06-01), Cook
patent: 4172490 (1979-10-01), Ware
patent: 4537234 (1985-08-01), Onsrud

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