. Railway master mechanic [microform] . er allfrom front to back. The table is 13 ft. long, from end toend. The saw is driven by an improved drive consisting of anendless belt which runs over the various pulleys and idlersin such manner as to maintain straight lines between pul-leys, thus maintaining equal tension on the belt at all timesand doing away with swinging frames or idlers. The saw housing travels on top of the frame in heavydove-tail slides and is provided with adjusting gibs for tak-ing up wear and for lining up the saw. The feed of thishousing is by means of a heavy lead screw dri


. Railway master mechanic [microform] . er allfrom front to back. The table is 13 ft. long, from end toend. The saw is driven by an improved drive consisting of anendless belt which runs over the various pulleys and idlersin such manner as to maintain straight lines between pul-leys, thus maintaining equal tension on the belt at all timesand doing away with swinging frames or idlers. The saw housing travels on top of the frame in heavydove-tail slides and is provided with adjusting gibs for tak-ing up wear and for lining up the saw. The feed of thishousing is by means of a heavy lead screw driven by rightand left friction gearing, which is controlled by a foot treadleat front of machine. There are three rates of forward feedand one return. The housing can be started or stopped atany point in its travel and can be returned to its startingpoint at will of the operator. A stop rod is furnished bywhich the backward travel of the saw can be regulated, asit is not necessary to return the saw for the full stroke forevery cut Hamilton Heavy Automatic Railway Cut-off Saw March, 1909. RAILWAY MASTER MECHANIC 105 The table is of extra large size, consisting of a centralconnected portion 5 ft. in length and having long wingroller extensions, giving a total length to the table of 13 roller table is 30 ins. wide and will admit material 27ins. wide. One 30-in. saw is furnished, but saws up to 36 ins. indiameter can be used, which latter will cut off material upto 27 ins. by 9 ins. or 17 ins. by 14 ins. The countershaft isattached to machine and has tight and loose pulleys 14 by 8^4 ins. face, which should make 250 revolu-tions per minute. The Bentel & Margedant Company, Hamilton, Ohio,manufacture this saw as well as the well-known Hamilton(Ohio) line of car shop wood-working tools. High Power Milling Machines Two views of a high power vertical milling machine, builtby the Cincinnati Milling Machine Company, are shownherewith. One of these illustrations s


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Keywords: ., bookcentury1800, bookdecade1890, bookpublishernewyo, bookyear1895