By JOHN J. FLATHER, Ph. B., M. M. E. In this age of innumerable applications of power a work treating of the methods of measuring it, must be of value to all engineers. The electrical engineer especially, is frequently called upon to estimate the quantity of power required in the operation of the endless variety of machinery which the electric motor is now called upon to drive, and he will find in the work before us a most concise and accurate guide. The author discribes all the more general forms of dynamometers including friction brakes, absorption and transmission dynamometers, and devotes attention to the power required to drive lathes and other machinery. The chapter on the measurement of water power will also prove useful to many. The book is well illustrated throughout, and the subject treated from a thoroughly practical stand point. ASK YOUR SUPPLY HOUSE FOR E. E. & S. PRODUCTS. Bernstein Electric Company 620 Atlantic Avenue, Boston, Mass. Manuf is of Incandescent Lamps for all Circuits, Series Sockets, Street Fixtures, Switches and General Supplies for Incandescent Lighting. ARE YOU SATISFIED with a bond that only gives you half area of your wire 10 Times the Area of all Terminal Wires for Contact? ROSE POLYTECHNIC INSTITUTE TERRE HAUTE, IND.-A COLLEGE OF ENGINEERING. The Johnston Bond is the only bond that utilizes the Electrical Instruments and Fine Machinery side contact of the rail as well as the hole in the web of 12 Times the Area of Wire for Contact. THE CAR EQUIPMENT CO., 741 Drexel Building, Philadelphia, Pa. Massachusetts Electrical Engineering Company, On armatures, covered up solid in a mass of canvas to conceal bad workmanship and material, are the S. W. RUSHMORE, 126 LIBERTY STREET, NEW YORK. IMPROVED ROOT WATER TUBE BOILER MODEL AND EXPERIMENTAL WORK, E. V. BAILLARD, 106 Liberty St., N. Y. THE WONDERFUL D'Unger Telephone. Highly Important to Telephone Users. The D'Unger Long Distance Telephone (the "Far Away Talker") can now be had for use in Telephone Exchanges on a small annual royalty, and on no other terms. It is constructed under numerous patents, especially Patent No. 390,575, granted Oct. 2, 1888, which is not only the first, but the only undisputed and indisputable valid patent granted for an All-Carbon Multiple-Contact Microphonic Telephone Transmitter. All allcarbon multiple-contact telephone transmitters built without or under patents granted since Oct. 2, 1888, are infringements upon Patent No. 390,575a fact to be borne in mind by persons contemplating the use of Telephones. The "D'Unger" is the only self-cleaning telephone in the world. It sends speech one (1) mile or five thousand (5,000) miles in a perfectly clear manner; can be operated at half the ordinary expense; is always in order, and has for its Receiver a Patent Compound Magneto, making but one magnetic field. It has likewise Paul D'Unger's Patent Diaphragm Regulator, which prevents the words from running together. As a whole it is complete, cannot be surpassed, and has no equal. Pronounced by all unprejudiced electricians to be the Peer of Telephones. Address D'Unger Long-Distance Telephone Co., Palmer House. No D'Unger Telephones can be had for exchanges except through me. R. D'UNGER. ELECTRIC RAILWAYS. Albany, Ore.-Surveys are being made for a motor line between Albany and Sodaville. Badford, Va.-The new electric car line has been opened and is quite a success. Holyoke, Mass.-The street railway company has petitioned for right to extend its tracks. Baltimore, Md.-The electric line to Clifton will soon be begun, the City Passenger Railway having secured all necessary rights of way. Brooklyn, N. Y.-The Coney Island, Fort Hamilton & Brooklyn R. R. is to be extended in Kings County from Fifth Ave. to New York Bay. Niagara Falls, N. Y.-The Niagara Falls, Whirlpool & Northern Electric R. R. Co. has awarded a contract to J. W. Hoffman & Co. for the construction of a road to the Devil's Hole. Denver, Col.-The Willow Creek R.R. Co. has been incorporated with a capital stock of $10,000 by S. S. Gill, W. J. Fine and John Latimer to build a road in Gunnison county. Belle Vue, Neb.-A committee consisting of W. R. Patrick, William Martin, Dr. W. C. Buel and others, has been appointed to make arrangements for extending the electric railway from South Omaha to this place. Reading, Mass.-Electric car communication between Reading, Wakefield and towns and cities intervening between here and Boston, to Lynn, Salem, Newburyport in the east, and Woburn, Stoneham, Winchester and other cities and towns in the west, is established. Sing Sing, N. Y.-The Sing Sing Electric Railroad has been in operation a year now, and during that time, in a village of 10,000 inhabitants, has carried 401,144 paying passengers, or an average of 1,100 a day. Philadelphia, Pa.-A charter has just been granted at Harrisburg to the Roxborough, Chestnut Hill and Norristown Traction Company, of Philadelphia, capital $5,000. The incorporators are William H. Heulings, Jr., John T. Dunlap, William J. Ferdinand, Henry C. Esling, of Philadelphia, and George W. Vanhorn, of Chester. Atlantic City, N. J.-Mr. E. C. Woodward is in teresting capitalists in an electric railway, direct from this city to New York. He thinks a two hours' line feasible and possible, one that would bring many New Yorkers here. This line will be built on the same plan as that now in progress between Chicago and St. Louis. See further, page xxlii. VICTOR TURBINE WATER WHEEL UPRIGHT OR HORIZONTAL. The attention of ELECTRIC COMPANIES is called to this CELEBRATED WATER WHEEL as particularly adapted to their use, on account of its remarkably steady Motion, high Speed and great Efficiency, and large Capacity, for its diameter, being double the Power of most wheels of same diameter. It is used by a number of the leading electric companies with great satisfaction. In the economical use of water it is without an equal, producing the highest per cent. of useful effect guaranteed PHILA. PA. St. Louis, Mo.-The Southern Electric Railway Co. has petitioned for a franchise to extend its line. Crisfield, Md.-A company has been formed to build an electric railway to connect with Mariners, Asbury and Apes Hole. Portland, Ore.-The Portland Cable Ry. Co. is reported as having estimates made for changing the motive power to electricity. Terre Haute, Ind.-The Terre Haute Electric Ry. Co. has been organized; capital stock, $500,000. Directors, P. P. Thomas, J. G. McNutt, M. F. Burke. Rome, N. Y.-The Rome City Street Railway Co is making arrangements to change the motive power of the road to electricity. W. P. Rayland, Secy. and Treas. Hartford, Conn.-The people of this town and borough are looking to the board of warden and burgesses to give the Bristol and Plainville Tramway Company power to build their line under conditions that can be reasonably complied with. Westinghouse, Church, Kerr & Co., ENGINEERS. We Design and Construct Plants for MECHANICAL DRAFT EXHAUSTING THROUGH ECONOMIZERS. BRIEFLY THE ADVANTAGES ARE. Perfect control of combustion regardless of fuel or barometer. Perfect smokelessness when combined with mechanical stoking. Temperature of feed water up to 300°. From which results the large net economy of fuel due to this system. Moreover the first cost of Mechanical Draft, including the Economizer, seldom exceeds, and with bad foundations is always much less than that of an equivalent brick chimney, in which the flue gases are wasted at 400° to 600°. We refer to Plants in use or under construction as follows: Curtis, Davis & Co., Cambridgeport, Mass., Soap Works..... Winchester Avenue Railway, West Haven, Conn.. W. G. Warden, Philadelphia, Pa... Electric Traction Co., Philadelphia, Pa.... Cincinnati Street Railway Co., Cincinnati, Ohio.. ... Philadelphia Traction Co., 38d St. Station, Philadelphia, Pa. 26 Cortlandt Street, New York. 620 Atlantic Avenue, Boston. Drexel Building, Philadelphia. ADDRESS: .1,200 H. P. .1,000 H. P. ...1,000 H. P. .2,000 H. P. ..1,000 H. P. ..1,200 H. P. ..1,200 H. P. ..1,200 H. P. ..4,000 H. P. ..6,000 H. P. .7,500 H. P. 171 La Salle Street, Chicago. Commercial Building, St. Louis. Westinghouse Building, Pittsburgh. Arc Light, Railway or Stationary Motor Circuits. THE IDEAL METER. DIRECT READING. Accurate on One Lamp. Accurate on Full Load. Slow Speed and Long Life. ENERGY Consumed in Operation so SMALL as to be PRACTICALLY NEGLIGIBLE. Applicable to Station Switchboards. Measuring Entire Output, Primary, Three Wire or Railway. The only Meter constructed to satisfy the requirements of Electrical Plants of every description. ARC CIRCUIT MÉTERS for measurement of station output. NEW ARC CIRCUIT METERS for commercial use, 4 and 8 light. TYPES, PORTABLE METERS FOR TESTING STREET CARS, accurate under severe jar. Large Meters for Measurement of Station Output in sizes up to 8,000 amperes, invaluable for Railway Work CARPENTER ENAMEL RHEOSTATS. GENERAL ELECTRIC COMPANY. Boston, Mass., 180 Summer St. MAIN OFFICE, SCHENECTADY, N. Y. Atlanta, Ga., Equitable Building. New York, N. Y., 44 Broad St. St. Louis, Mo., Wainwright Building. For all Business outside the United States and Canada: Thomson-Houston International Electric Co., Schenectady, N. Y., and 44 Broad Street, New York. For Canada: Canadian General Electric Co., Ltd., Toronto, Can. |