. The street railway review . s now done by one. At this station the lubricating system comprises automaticallygoverned oil pumps, oil piping, automatic sight-feed cylinder lu-bricators and bearing oil cups, and the necessary tanks and small duplex pumps are mounted on a polished iron table2 x 4l4 ft. in size; two pumps are for cylinder oil and two for engineoil, though only one of each is used at a time, the others consti-tuting a reserve. There are three pressure gages, one for steam andone each for the two systems oiling piping. Pressure in the engine oil piping is kept at from
. The street railway review . s now done by one. At this station the lubricating system comprises automaticallygoverned oil pumps, oil piping, automatic sight-feed cylinder lu-bricators and bearing oil cups, and the necessary tanks and small duplex pumps are mounted on a polished iron table2 x 4l4 ft. in size; two pumps are for cylinder oil and two for engineoil, though only one of each is used at a time, the others consti-tuting a reserve. There are three pressure gages, one for steam andone each for the two systems oiling piping. Pressure in the engine oil piping is kept at from 60 to 80 lb., inde-pendent of the quantity of oil used, by means of a regulatingvalve in the oil discharge pipe, acting to control the steam admis-sion to the pump. At each bearing or part to be oiled is a Siegrist automatic sightfeed pressure oil cup. The rate of speed of each oil cup can be reg-ulated at will by a thumb screw provided for that purpose, but adiaphragm pressure valve (sec Fig. l) in each cup instantly closes. FIG. 1. Fl<;. 3. the oil drip if the pressure in the system is lowered more than twoor three pounds. One globe valve placed in the supply pipe for theoil system of each engine is therefore sufficient to start or stop allthe oil cups on that engine. On closing this valve the flow of oilis stopped within a few seconds at every oil cup whether located atthe highest or lowest points of the engines. This prevents anywaste of oil after the engine is stopped. For the cylinders Siegrist automatic lubricators are used. Theyhave a sight feed, and the glass tube is i in. in diameter, giving butslight chance for oil to come in contact with the glass. A section ofthis is shown in Fig. 2; the diaphragm B has oil on one side andsteam on the lower side, and if the oil pressure falls below that ofthe steam, the valve C is seated and the oil kept from backing rate of feed is regulated by the screw A. PURIFICATION OF WATER FOR STEAM BOILERS. From a paper read be
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Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectstreetrailroads
