Solid material comminution or disintegration – Apparatus – Combined or convertible
Patent
1975-04-16
1976-11-02
Custer, Jr., Granville Y.
Solid material comminution or disintegration
Apparatus
Combined or convertible
83DIG1, 188 70R, 188161, 192 3R, 241 36, 241189R, B02C 2304
Patent
active
039891984
ABSTRACT:
The preferred embodiment of the invention disclosed herein includes a motor operatively connected to drive a rotatable drum assembly including cutting means rotatable through a cutting station where brush and similar debris is cut into small chips. Adjacent the cutting station is a feed station from which the brush may be hand-fed to the cutting station and at the feed station is actuating means operative to actuate emergency shutoff means and emergency brake means, the former being operative to shut off the motor and the latter being operative to stop the rotation of the drum assembly. Preferably, the emergency brake means includes a band member including a brake lining located about the periphery of a portion of the drum assembly and having spaced apart end portions. One end portion of the band member is fixed to a frame and the other end portion is spring biased away from the drum assembly so that the brake lining is normally not engaged with the adjacent periphery of the drum assembly. The other end portion of the band member is also associated with electromagnets normally spaced from a portion of the drum member. When the actuating means is operative, the electromagnets are energized and grip the drum assembly whereby the energy in the drum assembly causes the brake lining to wrap around the periphery of the drum assembly and exert a braking force thereon.
REFERENCES:
patent: 2605862 (1952-08-01), Winther
patent: 2880942 (1959-04-01), Hall
patent: 2981485 (1961-04-01), Mainone
patent: 3182917 (1965-05-01), Tamny et al.
patent: 3228177 (1966-01-01), Coates
patent: 3270968 (1966-09-01), Hess et al.
patent: 3290871 (1966-12-01), Haas
patent: 3842950 (1974-10-01), Fontaine
patent: 3874608 (1975-04-01), Ciriegio
Asplundh Tree Expert Company
Custer, Jr. Granville Y.
Goldberg Howard N.
Logan, Jr. John W.
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