By Jacob Fruchtbaum (auth.)

The dealing with of bulk fabrics is a constantly accomplished initiatives. a lot of the nomenclature has been altering technology. considering only a few colleges train the han­ pointed out up to now. dling of bulk fabrics, it is vital for working towards en­ ebook of the cloth contained herein isn't in­ gineers to improve their very own education manuals. This e-book tended as a illustration or guaranty at the a part of the is an abbreviated model of a handbook used for that pur­ writer, writer, editors, or the other individual or company pose in our workplace, and built over a interval of extra named herein that it truly is appropriate for any specific use, or than 50 years. whereas a few commercial organizations persist with their loose from infringement of any patent or patents. personal practices, the rage some time past few years has been The textual content is meant as a advisor. while used for any to undertake the criteria of kit brands' as­ particular undertaking, a reliable expert engineer sociations and related organisations. the choice of could be retained to make sure the assumptions, applica­ fabric and using drawiugs rather than images bility, calculations, and accuracy of the actual de­ relies on our adventure. sign.

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9. Band brakes or holdbacks when conveyor is inclined, so as to hold a loaded belt in the event of a power interruption, to prevent the belt from running backward. 10. Proper type of takeup, to keep belt in tension (gravity takeups are used on many installations and when space permits). BELT CONVEYOR ELEMENTS 17 ports the load, consists essentially of cotton, rayon, nylon, polyester, or a combination of these, covered with rubber and reinforced at times with wire or fiberglass. The rubber covers are made to resist abrasion and cutting.

Letter symbols for quantities are defined at appropriate points in the text. 37 in. 590 km 2 Volume 1 in3 I gal Length and Area 1m 1 acre 1 m3 Acceleration I mis' I ft/s 2 I yd 1 ft 1 mi 1 km 1 in. 1 GENERAL Flat belts are seldom used for carrying belt conveyors. For their use in package conveyors, refer to section 17; for their use in elevators, refer to section 3. A belt conveyor is used for transporting materials, generally horizontally, from one location to another. It is made up of an endless belt on top of idlers (rollers).

The wheels are cast-iron, flanged, chill rims, with roller bearings. The scale is beam type, equipped with a ticket recorder that punches or prints ticket with accurate weight readings. a Weighbridge Continue shimming down to zero in l/~_in. 12 Shimming of idlers. 34 BELT CONVEYORS The hand-operated lames are propelled by means of a coil chain running over a pocket wheel, keyed to one of the truck axles. The 2000-lb larry has a countershaft with cut spur gearing to aid propulsion. Motor-driven lames are provided with pocket wheel and chain for emergency hand propulsion.

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