. Material handling cyclopedia; a reference book covering definitions, descriptions, illustrations and methods of use of material handling machines employed in industry . ached directly to the fric-tion member or acting upon a plunger controlled by themagnetic action of the solenoid and operating levers whichapply or release the brake. When the current is cut offthe springs force the brake against the wheel stopping themotor. When the current is again turned on, the solenoidovercomes the tension on the springs and releases thebrake. The friction disk type of motor brake generally iscontrolled
. Material handling cyclopedia; a reference book covering definitions, descriptions, illustrations and methods of use of material handling machines employed in industry . ached directly to the fric-tion member or acting upon a plunger controlled by themagnetic action of the solenoid and operating levers whichapply or release the brake. When the current is cut offthe springs force the brake against the wheel stopping themotor. When the current is again turned on, the solenoidovercomes the tension on the springs and releases thebrake. The friction disk type of motor brake generally iscontrolled by a magnet of the horseshoe type. Geared Trolleys Geared trolleys designed for hght service on cranes orother machines—upward to about 6 to 10 tons capacity—are generally operated by hand power and are constructedin a manner similar to that of the plain two-wheel or four-wheel trolleys. A power sheave is used to operate thegear and it may be attached directly to and act on onlyone wheel of the trolley; may be mounted on a separateshaft carrying a pinion which meshes with gears securedto one or more wheels on the trolley; or may transmit 290 HOISTING MACHINERY.
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License: Licensed
Model Released: No
Keywords: ., bo, bookcentury1900, bookdecade1920, booksubjecthoistingmachinery
