The Mechanical Handling and Storing of Material: Being a Treatise on the Automatic and Semi-automatic Handling and Storing of Commercial Products

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C. Lockwood and Son, 1922 - Bulk solids - 804 pages
 

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Page 801 - D.VAN NOSTRAND COMPANY are prepared to supply, either from their complete stock or at short notice, Any Technical or Scientific Book In addition to publishing a very large and varied number of SCIENTIFIC AND ENGINEERING BOOKS, D. Van Nostrand Company have on hand the largest assortment in the United States of such books issued by American and foreign publishers. All inquiries are cheerfully and carefully answered and complete catalogs sent free on request.
Page 297 - The single fixed-rope type, in which one carrier is drawn to and fro by means of an endless hauling-rope. (5.) The use of two fixed ropes, with an endless hauling-rope, in which one carrier travels in one direction while the other runs on a parallel rope in the opposite direction. This type of tramway, of course, is not new, but it has been improved and altered in many ways, and it is now a thoroughly serviceable type of tramway, capable of being used over extremely long spans, and of carrying loads...
Page 352 - Coaling off Cienfuegos is very uncertain. Having ascertained that the Spanish fleet is not here, I will move eastward to-morrow, communicating with you from Nicholas Mole; on account of short coal supply in ships, cannot blockade them if in Santiago. I shall proceed to-morrow, 25th, for Santiago, being embarrassed, however, by Texas' short coal supply and her inability to coal in open sea.
Page 352 - Texas' short coal supply and her inability to coal in open sea. I shall not be able to remain off that port on account of general short coal supply of squadron, so will proceed to the vicinity of Nicholas Mole, where the water is smooth, and I can coal Texas and other ships with what coal may remain in collier.
Page 357 - Ships," read before the American Society of Naval Architects and Marine Engineers in...
Page 296 - ... gear. The carriertravellers or trucks, which are fitted with steel-grooved wheels to fit the ropes, run upon the latter, the receptacles being suspended from these travellers by means of frames or hangers. The carriers are connected by some suitable form of friction or of locking grips or couplings to an endless hauling rope operated by driving gear at one end, and provided with tightening gear at the other end, the usual rate of I speed being from 4 to 6 miles per hour.
Page 359 - ... canvas shoot and slide to the deck of the warship. Loads drop in this manner at the rate of one per minute. The empty carriage is drawn back by the rear drum, the forward drum being thrown partially out of friction. An auxiliary \ in. rope, known as the sea-anchor line, is stretched above the two strands of the conveyor line, and under a pulley on the carriage.
Page 295 - ... unloading is required to be done, or round the curve wheels. The impetus derived from the speed of the rope (about four miles per hour) is sufficient to enable the carrier to clear itself automatically from the rope without difficulty.
Page 359 - An auxiliary \ in. rope, known as the sea-anchor line, is stretched above the two strands of the conveyor line, and under a pulley on the carriage. This rope is attached by a "knock-off hook" to the superstructure of the vessel, and rests in a "saddle
Page 337 - ... of the carrier. The hoisting rope passes from the engine to the fall block for raising the load. The dump line comes from the other side of the winding engine drum and passes to a smaller block attached to the rear end of the skip or tray. The whole weight of the skip is borne by the hoisting rope, while the dump line comes in slack, but at the same rate of speed. Whenever it is desired to dump the load, the dump line is shifted to a section of the drum having a slightly Larger diameter, and...

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