. History of the West End street railway, in which is included sketches of the early street railway of Boston- consolidation of the various lines- foreign street railways- the Berlin viaduct- anecdotes, etc., together with speeches by President Henry M. Whitney, and others. Also, expert testimony as to the safety of electric . nes in theinside of screw gland. These seats are interchangeable and remov-able. By means of taking off the cap and removing the plug, theseats may be forced towards the inside of valve by means of thescrew gland until they are released and another can be inse
. History of the West End street railway, in which is included sketches of the early street railway of Boston- consolidation of the various lines- foreign street railways- the Berlin viaduct- anecdotes, etc., together with speeches by President Henry M. Whitney, and others. Also, expert testimony as to the safety of electric . nes in theinside of screw gland. These seats are interchangeable and remov-able. By means of taking off the cap and removing the plug, theseats may be forced towards the inside of valve by means of thescrew gland until they are released and another can be inserted, andis the only valve built with metal seats that are strictly valves, although but recently patented and put upon the mar-ket, have the complete endorsement of the best steam engineers ofthe country, and are being put into the best plants now being con-structed for electrical and other purposes, where heavy pressures arecarried. ELECTRIC TRUCK TRIPP MANUFACTURING CO., 180 SUMMER STREET, BOSTON, In the accompanying engraving, we illustrate an entirely new andimproved form of truck recently patented and placed on the marketby the Tripp Manufacturing Company, Boston, Mass. It is knownas Tripp loose wheel electric truck No. ii. This truck is note-worthy in its construction for many novel features. The wheels, 26. WEST END STREET RAILWAY. IO3 inches in diameter, are loose upon the axle, and are fitted inside thehub with the well-known Tripp roller bearing, carried on a 4 1-2 inchjournal. Upon the inside plate of each wheel is bolted a 20 inchgear, which fits into a pinion 8 inches in diameter, keyed on to eachend of the armature shaft, thus applying power to four differentpoints, and giving traction upon all the wheels. The entire weightof the motor is supported by two rigid axles, overcoming the necessaryfriction caused by the motor bearing upon a revolving axle. Thetruck is interchangeable ; it will swivel under either an open orclosed car, and will take any
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Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectstreetr, bookyear1892
