Read Locking; Being an Elementary Treatise on the Mechanisms in Interlocking Lever Machines by Which the Movements of the Levers Are Restricted to Certain

Locking; Being an Elementary Treatise on the Mechanisms in Interlocking Lever Machines by Which the Movements of the Levers Are Restricted to Certain

Frederick Charles Lavarack

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Description:This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1907 edition. Excerpt: ... TOWER DIAGRAMS AND MANIPULATION CHARTS. For the instruction of signalmen it is the practice to place in each interlocking tower a track diagram and a manipulation chart, the former illustrating the location of all tracks and signals and the latter indicating in which position the levers are to be placed in order to set up a given route. Where there are only a few tracks interlocked, as shown in Fig. 40, the tower diagram and manipulation chart are placed on one drawing which is about 18" wide x 36" long, this size being necessary that the letters and figures may be sufficiently large to enable a signalman to see them from any point of the operating side of the machine, the diagram and chart being hung so that they face the signalman when he is operating. As the methods of arranging and wording manipulation charts covering a given layout differ considerably, a standard method is explained. When proceeding to lay out a manipulation chart a satisfactory method is to first lay out all possible movements in one direction, indicating opposite each movement the necessary levers to reverse to set up the route for this movement. For instance, the first route indicated under the head of "North Bound" is "On N. B. Main Direct," which requires the reversing of facing point lock 8, to lock switches 7 and 9 normal, then home signal 2, to lock facing point lock 8 reversed and, finally, distant signal 1 to lock home signal 2 reversed. The second route is "From N. B. Mainto Siding"; this requires switch and derail 9, facing point locks 8 and 10 and home signal 3, the levers being placed in the order indicated as it is necessary to reverse switch and derail 9 before locking them with facing point locks 8 and 10, after which signal 3 is cleared, which...We have made it easy for you to find a PDF Ebooks without any digging. And by having access to our ebooks online or by storing it on your computer, you have convenient answers with Locking; Being an Elementary Treatise on the Mechanisms in Interlocking Lever Machines by Which the Movements of the Levers Are Restricted to Certain. To get started finding Locking; Being an Elementary Treatise on the Mechanisms in Interlocking Lever Machines by Which the Movements of the Levers Are Restricted to Certain, you are right to find our website which has a comprehensive collection of manuals listed.
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ISBN: 1230406069

Description: This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1907 edition. Excerpt: ... TOWER DIAGRAMS AND MANIPULATION CHARTS. For the instruction of signalmen it is the practice to place in each interlocking tower a track diagram and a manipulation chart, the former illustrating the location of all tracks and signals and the latter indicating in which position the levers are to be placed in order to set up a given route. Where there are only a few tracks interlocked, as shown in Fig. 40, the tower diagram and manipulation chart are placed on one drawing which is about 18" wide x 36" long, this size being necessary that the letters and figures may be sufficiently large to enable a signalman to see them from any point of the operating side of the machine, the diagram and chart being hung so that they face the signalman when he is operating. As the methods of arranging and wording manipulation charts covering a given layout differ considerably, a standard method is explained. When proceeding to lay out a manipulation chart a satisfactory method is to first lay out all possible movements in one direction, indicating opposite each movement the necessary levers to reverse to set up the route for this movement. For instance, the first route indicated under the head of "North Bound" is "On N. B. Main Direct," which requires the reversing of facing point lock 8, to lock switches 7 and 9 normal, then home signal 2, to lock facing point lock 8 reversed and, finally, distant signal 1 to lock home signal 2 reversed. The second route is "From N. B. Mainto Siding"; this requires switch and derail 9, facing point locks 8 and 10 and home signal 3, the levers being placed in the order indicated as it is necessary to reverse switch and derail 9 before locking them with facing point locks 8 and 10, after which signal 3 is cleared, which...We have made it easy for you to find a PDF Ebooks without any digging. And by having access to our ebooks online or by storing it on your computer, you have convenient answers with Locking; Being an Elementary Treatise on the Mechanisms in Interlocking Lever Machines by Which the Movements of the Levers Are Restricted to Certain. To get started finding Locking; Being an Elementary Treatise on the Mechanisms in Interlocking Lever Machines by Which the Movements of the Levers Are Restricted to Certain, you are right to find our website which has a comprehensive collection of manuals listed.
Our library is the biggest of these that have literally hundreds of thousands of different products represented.

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Locking; Being an Elementary Treatise on the Mechanisms in Interlocking Lever Machines by Which the Movements of the Levers Are Restricted to Certain

Locking; Being an Elementary Treatise on the Mechanisms in Interlocking Lever Machines by Which the Movements of the Levers Are Restricted to Certain

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