Wire Rope Tramways: With Special Reference to the Bleichert Patent System. Also Single Moving-rope Tramways, Quarry Cable Hoists and Transmission of PowerBook describes both single-cable and double cable tramway systems referencing Bleichert Systems, a product of Trenton Iron Works. Quary cable hoists and power transmission is also discussed. Illustrated with some fold-out plates. (jvl). |
Other editions - View all
Wire Rope Tramways: With Special Reference to the Bleichert Patent System ... Edmund Gybbon Spilsbury No preview available - 2013 |
Wire Rope Tramways: With Special Reference to the Bleichert Patent System ... Edmund Gybbon Spilsbury No preview available - 2022 |
Wire Rope Tramways: With Special Reference to the Bleichert Patent System ... Edmund Gybbon Spilsbury No preview available - 2022 |
Common terms and phrases
actual horse-power transmitted advantage Automatic Bi-Metallic Mining Company Bleichert tramways box-head buckets Cable Road Company carriage carrying cables cars centrifugal force construction cost curve daily capacity diameter driving side driving wheels due to centrifugal due to journal efficiency endless rope endless traction rope equation following side Granite Mountain Mining h₁ Hallidie hanger HEWITT hoisting rope individual loads IRON AND STEEL JAMES HALL Jersey journal friction K₁ LAURENTIDE PULP Length of line limit of span long spans Loss DUE maximum miles Montana moving rope N₁ necessary Photograph POTTSVILLE Quarry Cable Hoist railroad require Rock Cable Road rope at center Rope Tramway BLEICHERT Rumsey S₁ side of rope single moving-rope tramways speed Split Rock Cable square inch steep grades supports Syracuse system of tramways tension tightening sheaves tons per day Tramway BLEICHERT SYSTEM transmission of power TRENTON IRON COMPANY UNIV unloading velocity weight Weisbach Wire Rope Tramway WROUGHT IRON
Popular passages
Page 26 - The rope, instead of running the whole length of the transmission, runs only from one station to the other. It is advisable to make the stations equidistant, so that a rope may be kept on hand, ready spliced, to put on the wheels of any span, should its rope give out. This method is greatly to be preferred where there is sometimes a jerking motion to the rope, as it prevents the rope from transmitting any sudden movements of this kind.
Page 24 - ... only need a section of 1-40 square inch. To put an extreme illustration, we might conceive of a speed at which an iron wire, as fine as a human hair, would be able to transmit the same amount of work as the original one-inch bar. By the application of these simple principles in Hirn's apparatus, the greater part of the force is first converted into velocity, and at the place where the power is required, the velocity is changed back into force.
Page 34 - The maximum limit of span, therefore, is determined by the maximum deflection that may be given to the upper side of the rope when in motion. Assuming that the clearance between the upper and lower sides of the rope should not be less than two feet, and that the wheels are at least ten feet in diameter, we have and since hz = 2hl> we have hl = 8 feet.
Page 34 - the rope. The rope is also subject to a certain amount of stretch, and tightening sheaves are resorted to in order to avoid frequent splices, which are objectionable; but care should always be exercised, in using tightening sheaves, that they do not become the means, in unskilled hands, of overstraining the rope. When it is inconvenient to apply tightening sheaves, the wheels may be re-filled with a thicker filling, or a temporary lining of wooden blocks put in, by nailing to the filling already...
Page 2 - WIRE-ROPE TRAMWAY OF THE SPLIT ROCK CABLE ROAD COMPANY, SYRACUSE, NY One of the advantages of these tramways over others consists in their capability of surmounting any grade. In one system of single-rope tramways, no grades in the rope stopping the whole line.
Page 23 - The rate at which work is done on the volume of liquid between them will be the product of the force and the velocity with which it moves its point of application, which is aq x Aqij = Aaq^/.
Page 35 - It generally happens that the two wheels are not on the same horizontal plane, but that one occupies a higher elevation than the other. There will be a difference in the tensions in this case at the two wheels, the upper one being subject to a greater tension, but this difference is so slight, for all practicable spans, that it may be neglected as far as it affects the amount of horse-power that may be transmitted. It is evident, however, that when the angle of inclination is very great, the proper...
Page 24 - Ropes of twelve and nineteen wires to the strand are also used. They are much more flexible, and may be applied with advantage under conditions which do not allow the use of large transmission wheels, but admit of high speed.
Page 8 - In this system the carrying-cable, being stationary, can be locally graduated to the strains it has to bear. The cable for the empty cars does not, of course, require to be as strong as the cable for the loaded cars, and it is therefore made only strong enough for the work it has to perform. In like manner, if one or more long spans occur in the line, it is not necessary that the whole cable should be made strong enough to bear the extra strain at this one point : on the contrary, it is sufficient...