. The street railway review . area. Thecost of evaporating 1,000 lbs. of water into steam at 125 probably not less than 12 cents, and may be much more,and hence in one hour an opening of I sq. in. would dis-charge at least $.86 worth of steam. Of course valves do nothave leaks aggregating I sq. in. in area, but the calculationshows how a few small leaks may easily waste considerablemoney. ^lJ(M-%il\vi^S\gvl2vv^ 341 The Benton valve reseating machine here illustrated, ishandled by Wendell & MacDuffie, of New York and Boston,and can be attached to all valves regardless of the size of thet
. The street railway review . area. Thecost of evaporating 1,000 lbs. of water into steam at 125 probably not less than 12 cents, and may be much more,and hence in one hour an opening of I sq. in. would dis-charge at least $.86 worth of steam. Of course valves do nothave leaks aggregating I sq. in. in area, but the calculationshows how a few small leaks may easily waste considerablemoney. ^lJ(M-%il\vi^S\gvl2vv^ 341 The Benton valve reseating machine here illustrated, ishandled by Wendell & MacDuffie, of New York and Boston,and can be attached to all valves regardless of the size of thethread or of the opening in the valve hood. The valve seatis cut with reversible self-cleaning tools, which may beground when dull. The attaching device consists of a block-chuck with gibsplaced between the two blocks and tiie bar to take up theslack. Upon the under side of the blocks is a series of par-allel segment-shaped steps, the curved face of each step be-ing threaded to correspond with the threads of valve casings. BENTON VALVE RESEATING MACHINES. with which the steps are designed to engage. The screwrod opens or closes the chuck jaws. The outfit also comprises a disc dressing device, the cut-ters for which are on the inner opposite edges of a V-shapedl>ar. These cutters or blades are attached to this bar bymeans of screws that pass through slots in the bar, and thuspermit of a rigid angular adjustment of the cutters. It is tobe noted that the cutters or blades, by being located on thesides of said bar, have their cutting edges presented on linestangential and not radial to the valve being ground; hencethey do not unduly bite into the valve, and objectionablechattering is avoided. BUFFALO & LOCKPORT INTERURBAN. One of the largest recent railroad deals has just been per-fected in New York, where the Bufifalo & Lockport Rail-way Company has been incorporated to operate a streetsurface railroad between Bufifalo, in Erie county, and Lock-port, in Niagara county, by way of
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Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectstreetrailroads
