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TRAE MaARINE. REVIEW a s bi i cea 4 Wye PR jae. 83 Pant ae Me ! 'oie ae eae AUGUSTINE ROTARY STEAM ENGINE DIRECT-COUPLED To 15-H. P. MoTOR AT NO. 132 NORTHAMPTON ST., BUFFALO. » - to the power shaft to rotate there. with the core extends from head to head of the cylinder and has circular end flanges which form a running joint with the cylinder and straddle the abutment, which is reduced to its ends for this purpose. The core is constructed so as to enable the pis- tons and counterbalancing weights to operate with absolutely no friction. The cylinder has an annular exhaust chamber which acts as a superheater, so the heat units are much greater. The cylinder forms an abutment in one side, so as to form a stationary cylinder head. This abutment has by-passes so as to relieve the piston, which is in contact with the abut- ment, of its friction. When the pis- ton reaches the end of the by-pass, the ports in the disc open and admit the steam to the cylinder. The pis- 'ton is then locked steam-tight until the next piston reaches the end of the by-pass. The first piston then starts to exhaust through a series of ports which relieve the piston of all the exhaust before it has to slide in the core. The piston has a guide in its outer end and a counterbalance on the opposite side of the shaft, so when the engine is in motion the pis- ton is properly balanced. This engine has but two bearings. - These bearings are made with adjust- ments so as to take up any wear and also to keep the revolving core tight on the abutment so as to prevent any leaking of steam. There are but two adjustments necessary to take up the wear--the journals and the valve rings--which are easily adjusted. The engine is reversible and has not one ounce of back pressure; also has steam-tight cylinders and the friction- al wear increases tightmess of ll joints. The engine is so arranged that if it stops on center by opening throttle by-pass, the engine will start at any point in either direction. It is also constructed to run with a vacuum, which will show greater econ- omy. Free from vibration, all moving parts, being immersed in steam, are self-lubricating, which greatly reduces the amount of oil required and in- sures a perfect distribution of it .to all the parts, preventing the possi- bility of dry surface and relieving the attendant of all care except to fill the oil cup attached to the steam pipe and one placed on each journal. This is in marked contrast to the usual necessary watchful care of the num- erous oiling devices to be seen upon all other modern steam engines. This item of cost is almost wholly eliminated, there being no shock to be absorbed or overcome and no vi- bration, the bed plate, being of am- ple size, forms about all the founda- tion required. Its many important advantages on board ship for operating steering gear, steam capstans, windlasses, hoisting machines, dynamos for electric light- ing, ventilating fans, circulating pumps, bilge pumps, and many other devices so commonly employed on a steamboat, by the use of the engine, where direct coupling is made, the cost of belts, extra shafts, counter- ' shafts with their pulleys and bearings, can be saved as well as the slip, fric- tion and consequent loss of 'power which their use involves; and thus there is greater saving of floor space by using this engine for elevator pur- poses; fully 75 per cent can be saved on the installation and fully 50 per cent on operating. The hydraulic ele- vator requires as much power for one person as it does for a dozen. This engine, if taking one person will only require steam for that amount of work. The engine will operate with steam from one pound up to as high a pressure as a modern boiler can stand. Quite a number of prominent Buf- falo men are interested in the engine. ROGERS BOILER PURIFIER. The Rogers' combination steam boiler heater, purifier, oil separator and cir- culating device is meeting with great success. The operation of the purifier adds greatly to the life of the boiler and is a decided enemy of scale. Scotch boilers have been run success- fully in the marine service for six months without cleaning, and in fact at the end of that period have been found to be practically as clean as when put into service. The company has received a great many gratuitous testimonials of the efficiency of the device. Two Scotch boilers equipped with Rogers device at the yard of the Buffalo Dry Dock Co. have been run- ning for three months without being cleaned and also two at the Ship Owners' Dry Dock Co, Chicago. A battery of Babcock & Wilcox water- tube boi'ers have been running for two years at the power house of the Chicago City Railway Co., cleaning out every six months. Numerous other instances could be given of the excellent work of this device. The headquarters of the Rogers company are Room 12, 202 Main street, Buffalo, N.Y. The annual entertainment and ball of Marine Engineers Beneficial Asso- ciation No. 33, New York, was held in Lexington avenue opera house in the evening of Dec. 4. The gather- ing. was generally agreed to be the most successful in the history of No. 33, the committee of arrangements being more than satisfied with the large attendance of members and guests. An excellent variety program was provided, the dance following the close of the entertainment.