{"product_id":"mining-haulage-classic-1907-mining-engineering-text-reprint-2008-soft-cover","title":"Mining: Haulage Classic 1907 Mining Engineering Text reprint 2008 Soft Cover","description":"\u003cbody\u003e\n\u003c!-- HTML Generated by Auction Wizard 2000 - http:\/\/www.AuctionWizard2000.com\/ --\u003e\n\n\n\u003c!-- AW2KLOT#:121526 --\u003e\n\u003cbr\u003e\n\u003ctable style=\"width:98%;padding:2px;margin:auto;border:5px outset #673434;background-color:#FDF3D0\"\u003e\u003ctr\u003e\u003ctd style=\"border:1px inset #673434;margin:5px;\"\u003e\n\u003ctable style=\"width:100%;border:0px;padding:5px;\"\u003e\n\u003ctr\u003e\u003ctd\u003e\n\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd style=\"padding:5px\"\u003e\n\u003cdiv style=\"text-align:center\"\u003e\n\u003cspan style=\"font-family:Arial Black;font-size:1.5em;color:#000000;font-weight:normal;font-style:normal;text-decoration: underline;\"\u003eRailroadTreasures\u003c\/span\u003e\u003cspan style=\"font-family:Arial Black;font-size:1.5em;color:#000000;font-weight:normal;font-style:normal;text-decoration: underline;\"\u003e \u003c\/span\u003e\u003cspan style=\"font-family:Arial Black;font-size:1.5em;color:#000000;font-weight:normal;font-style:normal;text-decoration: underline;\"\u003eoffers the following item:\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Times New Roman;font-size:1.0em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003e  \u003c\/span\u003e\u003c\/div\u003e\n\n\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd style=\";padding:5px\"\u003e\n\u003cdiv style=\"text-align:center\"\u003e\u003cspan style=\"font-family:Arial;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eMining: Haulage Classic 1907 Mining Engineering Text reprint 2008 Soft Cover\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:center\"\u003e\u003cspan style=\"font-family:Arial;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003e  \u003c\/span\u003e\u003c\/div\u003e\n\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:bold;font-style:normal;text-decoration:none;\"\u003eMining: Haulage Classic 1907 Mining Engineering Text\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:bold;font-style:normal;text-decoration:none;\"\u003eCopyright 1907 reprint Copyright 2008 \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:bold;font-style:normal;text-decoration:none;\"\u003eSoftbound \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:bold;font-style:normal;text-decoration:none;\"\u003eApprox 244 Plus Pages\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:bold;font-style:normal;text-decoration:none;\"\u003eCONTENTS\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eMining: Haulage\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eCONTENTS\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eHAULAGE\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eMine Cars . . .. .... . .541\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eOre Cars . ... . .. . . . 546\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eCoal Cars . . . . . ... . .. . 5412\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eMine-Car Details  . . .5424\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eResistance to Mine-Car Haulage . . . . . 5437\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eMine-Haulage Systems . .. . . . . . 5443\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eMan Power for Transportation . . .. . 5444\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eAnimal Haulage ... . . . .5447\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eLocomotive Haulage . . . .. .. . 551\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eSteam-Locomotive Haulage. . . . . . 554\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eConstruction of Steam Mine Locomotives - 555\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003ePower of a Locomotive .. .. .5510\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eHauling Capacity of Locomotives . .5515\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eCompressed-Air Locomotive Haulage .5522\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003ePipe Lines . ... . .. 5524\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eElectric Locomotive Haulage . . . . . . 561\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eWiring for Electric Mine Haulage ..567\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eElectric Mine Locomotives ... . . 5619\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eHaulage Locomotives . .... . . 5635\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eGathering Locomotives .. .. . . . 5645\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eRating and Capacity . . .. . ..5652\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eOperation of Electric Mine Locomotives . 5661\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eRope Haulage . . . .. . .. . . 571\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eEndless-Rope Haulage . . . .. . . 572\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003ePower for Driving Endless-Rope System . 574\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eCombined Endless-Rope and Gravity Plane 5713\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:bold;font-style:normal;text-decoration:none;\"\u003eOverhead Endless-Rope Haulage System . -5722\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:bold;font-style:normal;text-decoration:none;\"\u003eTrack Rollers, and Carrying Sheaves ...57\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:bold;font-style:normal;text-decoration:none;\"\u003eCurves....57\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:bold;font-style:normal;text-decoration:none;\"\u003eEndless-Rope Haulage Calculations.57\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:bold;font-style:normal;text-decoration:none;\"\u003eOperation of Endless-Rope System .57\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:bold;font-style:normal;text-decoration:none;\"\u003eTail-Rope Haulage.......57\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:bold;font-style:normal;text-decoration:none;\"\u003eDistrict Tail-Rope Haulage..57\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:bold;font-style:normal;text-decoration:none;\"\u003eCrooked-Entry Haulage ......57\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:bold;font-style:normal;text-decoration:none;\"\u003ePower for Operating Tail-Rope.457\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:bold;font-style:normal;text-decoration:none;\"\u003eSurface Tail-Rope System of Haulage57\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:bold;font-style:normal;text-decoration:none;\"\u003eSignaling..57\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:bold;font-style:normal;text-decoration:none;\"\u003eTail or Return Sheaves ......57\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:bold;font-style:normal;text-decoration:none;\"\u003eCouplings......57\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:bold;font-style:normal;text-decoration:none;\"\u003eThird-Rail Tail-Rope Haulage .....57\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:bold;font-style:normal;text-decoration:none;\"\u003eTail-Rope Haulage Calculations57\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:bold;font-style:normal;text-decoration:none;\"\u003eGravity Planes....58\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:bold;font-style:normal;text-decoration:none;\"\u003eArrangement of Tracks .. . ..58\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:bold;font-style:normal;text-decoration:none;\"\u003eCalculations for Gravity Planes58\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:bold;font-style:normal;text-decoration:none;\"\u003eEngine Planes. ..58\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:bold;font-style:normal;text-decoration:none;\"\u003eCalculation for an Engine Plane..- 58\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:bold;font-style:normal;text-decoration:none;\"\u003eTail-Rope Haulage Calculations57\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:bold;font-style:normal;text-decoration:none;\"\u003eGravity Planes.....,......58\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:bold;font-style:normal;text-decoration:none;\"\u003eArrangement of Tracks .. . ....58\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:bold;font-style:normal;text-decoration:none;\"\u003eCalculations for Gravity Planes58\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:bold;font-style:normal;text-decoration:none;\"\u003eEngine Planes.........58\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:bold;font-style:normal;text-decoration:none;\"\u003eCalculation for an Engine Plane..- 58\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:bold;font-style:normal;text-decoration:none;\"\u003eMINE CARS\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:bold;font-style:normal;text-decoration:none;\"\u003e1. Mine Cars in Genet-al.-Mine ears are used for the purpose of transporting materials from the working place in a mine to a place either in or out of the mine where they are unloaded. There is great variety in their shape and construction, but one of the chief considerations in their design is whether they are to be dumped by hand or by the aid of a tipple, and whether they are to be dumped from the end or side.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:bold;font-style:normal;text-decoration:none;\"\u003eSome cars are constructed of wood and iron, others entirely of iron; some are very narrow gauge and others broader gauge; some have a very short wheel base and others a longer wheel base. Wooden mine cars are usually built at the mine, so there is no universal shape or design. As only a few cars can be described here, only those will be described that have proved satisfactory in places where they have been used.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:bold;font-style:normal;text-decoration:none;\"\u003e2. Size of etti.,-In mines where headroom for passage and loading is limited by the thickness of the material mined, or where the width of the passageways is restricted by the nature of the roof, floor, or the material mined, the cars must conform in size to the heights and widths of the passages in the mine through which they must be moved; where the passageways are not restricted by the thickness and nature of the material mined, the size of the cars is determined by the ease with which they may be handled and loaded.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:bold;font-style:normal;text-decoration:none;\"\u003eINTRODUCTION\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:bold;font-style:normal;text-decoration:none;\"\u003e1. The most common application of underground locomotive haulage is to coal mines, where the coal is usually gathered from the rooms or working places by animals and hauled to a parting or turnout. These partings or turnouts are usually on side or cross-entries, though they may be on main haulage ways. Here a number of cars are coupled into trips and are hauled by locomotives to the outside, or to the shaft bottom. In extensive mines, where cross-entries are long, the cars are gathered on the partings by mules and hauled by locomotives from gathering partings to the main parting, which is usually just off of the main haulage way. From this latter point, the trips are taken to their destination by the same or other locomotives. Small compressed-air and electric locomotives are now also used for gathering the cars from the rooms and collecting them at the partings, where the trips are made up and hauled out by the locomotives.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:bold;font-style:normal;text-decoration:none;\"\u003e2. Advantages of Locomotive Haulage.-Under certain conditions, locomotive haulage possesses advantages over other systems of mine haulage. Its chief advantages over animal haulage are speed and ability to haul larger quantities of material at one time. One advantage that it possesses over rope haulage is that the motive power\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:bold;font-style:normal;text-decoration:none;\"\u003eCoOrighled by International Textbook ConiPany. Entered at Stationers' Hall, London\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:bold;font-style:normal;text-decoration:none;\"\u003eHAULAGE ELECTRIC LOCOMOTIVE HAULAGE\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:bold;font-style:normal;text-decoration:none;\"\u003eINTRODUCTION\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:bold;font-style:normal;text-decoration:none;\"\u003e1. Advantages and Disadvantages.-One of the most important matters which the mine manager has to deal with is the transmission of power. It cannot be stated that one kind of energy is better than another for all conditions, nor for any particular service without an examination of all the conditions under which it is to be used. The chief advantage of electric power for mine haulage is the readiness with which it can be transmitted long distances. It cannot, however, be used in some mines or in parts of many mines, because of the presence of explosive gases or mixtures of gas and impalpable coal dust that may be ignited by electric sparks from switches, controllers, broken wires, or blowing fuses. Moreover, physical conditions or the method by which the mine is worked may also oppose the use of electrical energy as a motive power.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:bold;font-style:normal;text-decoration:none;\"\u003eElectric locomotives of the ordinary type can be operated on short grades of 12 to 15 per cent., but they are not recommended when the grade exceeds 3 per cent. for long distances, or 5 per cent. for short distances; beyond this grade lies the field of rack-rail, or sprocket-type, locomotives, or of rope haulage. Electric locomotives of the rack-rail type can be used to advantage on grades as high as 18 per cent.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:bold;font-style:normal;text-decoration:none;\"\u003eCoprighird b, International Textbook Contloany, Entered at Stationers' Halt. London\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:bold;font-style:normal;text-decoration:none;\"\u003eHAULAGE ROPE HAULAGE\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:bold;font-style:normal;text-decoration:none;\"\u003eINTRODUCTION\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:bold;font-style:normal;text-decoration:none;\"\u003e1. Deno:Mon.-A rope-haulage system, applied to mining, is one in which the cars are attached to a rope, and both are moved by means of an engine, motor, or by gravity. Usually, rope haulage is applied to nearly horizontal tracks; but if the haulage is on an inclined plane, the gravity pull of the descending load will greatly assist the motive power and in some cases will be sufficient to move the entire system.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:bold;font-style:normal;text-decoration:none;\"\u003eIn the first rope-haulage plants, the cars were attached to hemp or manila ropes, or in some cases to iron chains; however, wire ropes are now used almost universally, as they are more economical and serviceable.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:bold;font-style:normal;text-decoration:none;\"\u003e2. Rope-Haulage Systems.-There are four systems of rope haulage:\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:bold;font-style:normal;text-decoration:none;\"\u003e1. Endless-rope haulage, in which the rope travels continuously in the same direction, taking empty cars into the mine and bringing loaded cars out.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:bold;font-style:normal;text-decoration:none;\"\u003e2. Tail-rope haulage, in which there are two ropes, a main rope and a tail rope, attached, respectively, to the outby and the inby ends of a trip of cars. The tail rope is used for drawing the empty cars into the mine and the main rope for bringing the loaded cars out, the ropes thus traveling together alternately in opposite directions.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Arial;font-size:1.0em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eAll pictures are of the actual item.  If this is a railroad item, this material is obsolete and no longer in use by the railroad.  Please email with questions. Publishers of Train Shed Cyclopedias and Stephans Railroad Directories. Large inventory of railroad books and magazines. 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