Handbook for architects and builders . Large Shafts and Bearings, Pos-itive Frictions, Large Boilers and other ImportantFeatures. We also manufacture and carry in stock acomplete line of derricks and fittings. Send for descriptive catalog CLYDE IRON WORKS, Duluth, Minn. Chicago, III., 318-19 Fisher Building Bell Phone Har. 875 Auto. Phone 63-386 NEW YORK NEW ORLEANS SAVANNAH HOUSTON 344 conveyors t)ut in beneath the floor and withthe pusliers projecting tlirough a narrowslot in tlie floor liave been very serviceablein tlic handling of trucks in warehouses andmanufacturing establishments. Tlie
Handbook for architects and builders . Large Shafts and Bearings, Pos-itive Frictions, Large Boilers and other ImportantFeatures. We also manufacture and carry in stock acomplete line of derricks and fittings. Send for descriptive catalog CLYDE IRON WORKS, Duluth, Minn. Chicago, III., 318-19 Fisher Building Bell Phone Har. 875 Auto. Phone 63-386 NEW YORK NEW ORLEANS SAVANNAH HOUSTON 344 conveyors t)ut in beneath the floor and withthe pusliers projecting tlirough a narrowslot in tlie floor liave been very serviceablein tlic handling of trucks in warehouses andmanufacturing establishments. Tlie general class of conveyors abovedesignated as class (b), which carry theirload, have more universal adaptation to vary- with a cushion of from 1/16 inch to ^A inchmore or less pure rubber on the carryingside, which protects the fabric until thiscushion is worn away. The belt conveyor lias a wide field of use-fulness and is deservedly popular both withmanufacturer and user. It is simple, smoothand noiseless in operation, may be run at. Apron Type ing requirements. Of these the conveyingbelt is one of the oldest and still most use-ful. The earliest conveying belts were per-fectly flat, being supported by plain cylin-drical rollers such as are still used for thereturning run. In order to increase the con-veying capacity without tlie material spillingoff the edges of the belt, the rollers weresomewliat dished, or made concave in form,causing the belt to assume the form of ashallow trough. The conveying belts them-selves are of canvas duck, woven solid; orof a number of plies varying from three toeight, stitched or cemented together with acomposition of rubber, and known as rubberbelts. Canvas belts are plain duck, oi- treated relatively high speeds, from 300 feet to SOOfeet per minute—with consequent large con-veying capacity. The most serious objection to belt convey-ors, and the one which has prevented theireven more general use, is the lack of dura-bility of the belts, their l
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Keywords: ., bookcentury1800, booksubjectarchitects, booksubjectarchitecture
