{"product_id":"american-railway-signaling-principles-and-practices-symbols-aspects-ind-chapii","title":"American Railway Signaling Principles and Practices Symbols Aspects Ind ChapII","description":"\u003cbody\u003e\n\u003c!-- HTML Generated by Auction Wizard 2000 - http:\/\/www.AuctionWizard2000.com\/ --\u003e\n\n\n   \u003cmeta charset=\"UTF-8\"\u003e\n   \u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\u003e\n\n\n\u003c!-- AW2KLOT#:198110 --\u003e\n\u003cbr\u003e\n\u003ctable style=\"width:98%;padding:2px;margin:auto;border:5px outset #673434;background-color:#FDF3D0\"\u003e\u003ctr\u003e\u003ctd style=\"border:1px inset #673434;margin:5px;\"\u003e\n\u003ctable style=\"width:100%;border:0px;padding:5px;\"\u003e\n\u003ctr\u003e\u003ctd\u003e\n\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd style=\"padding:5px\"\u003e\n\u003cdiv style=\"text-align:center\"\u003e\n\u003cspan style=\"font-family:Arial Black;font-size:1.5em;color:#000000;font-weight:normal;font-style:normal;text-decoration: underline;\"\u003eRailroadTreasures\u003c\/span\u003e\u003cspan style=\"font-family:Arial Black;font-size:1.5em;color:#000000;font-weight:normal;font-style:normal;text-decoration: underline;\"\u003e \u003c\/span\u003e\u003cspan style=\"font-family:Arial Black;font-size:1.5em;color:#000000;font-weight:normal;font-style:normal;text-decoration: underline;\"\u003eoffers the following item:\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Times New Roman;font-size:1.0em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003e  \u003c\/span\u003e\u003c\/div\u003e\n\n\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd style=\";padding:5px\"\u003e\n\u003cdiv style=\"text-align:center\"\u003e\u003cspan style=\"font-family:Arial;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eAmerican Railway Signaling Principles and Practices Symbols Aspects Ind ChapII\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:center\"\u003e\u003cspan style=\"font-family:Arial;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003e  \u003c\/span\u003e\u003c\/div\u003e\n\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eAmerican Railway Signaling Principles and Practices \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eSymbols Aspects and Indications Chapter II \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eCopyright 1929\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eApprox 78 pages\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eIn railway signaling, symbols are the characters used on drawings to represent signal and interlocking apparatus, tracks, buildings, bridges and various other parts of the railway structure.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eWithout the use of symbols, it would be extremely difficult for the engineer to express himself clearly or to design the apparatus, circuits, etc., without much extra labor and the possibility of misunderstanding between the designer and the mechanic building or installing the apparatus or circuits.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eSymbols to be of use, however, must be understood by the designer and by him who is to read the plan, thus the necessity for standard symbols in any given field of endeavor. In railway signaling, standard symbols are the work of the Railway Signal Association and its successor, the Signal Section of the Engineering Division of the American Railway Association. The symbols, comprising 14 drawings, were prepared by a committee of signalmen and representatives of the various signal companies.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eThe portion of this chapter devoted to symbols will describe the symbols and their use; no attempt will be made to describe the signal apparatus, their use or operation, these features being covered in subsequent chapters.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Calibri;font-size:1.13em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eFigure 1 shows the symbols used for signals. These symbols have been in general use for a number of years. The first or upper section of the figure shows the characteristics of the signals. It will be noted the columns have headings to indicate the general type of signal shown, while the headings for the lines indicate the kind of signaling and the various aspects that will be displayed. The first symbol in each column (numbered 1 to 7, inclusive) indicates type of signal, thus a heavy line at the top of the character representing a signal blade (No. 1), indicates a non-automatic, mechanical signal; a heavy line or block at the left end of the blade (No. 4) represents a semi-automatic stick signal, power-operated. The first symbol in each line (lettered A to E, inclusive) indicates whether the signaling is two or three-position, and, if three-position signaling, what positions are used. The various combinations are indicated by vertical and diagonal lines of ordinary width. Where two-position signaling is used these characters are not employed.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Arial;font-size:1.0em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eAll pictures are of the actual item.  There may be reflection from the lights in some photos.   We try to take photos of any damage.    If this is a railroad item, this material is obsolete and no longer in use by the railroad.  Please email with questions. Publishers of Train Shed Cyclopedias and Stephans Railroad Directories. Large inventory of railroad books and magazines. Thank you for buying from us.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:center\"\u003e\u003cspan style=\"font-family:Arial;font-size:1.13em;color:#CE0000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eShipping charges\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Arial;font-size:1.0em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eUS Shipments:  When you add multiple items to your cart, the reduced shipping charges will automatically be calculated.   For direct postage rates to other countries, send me an email.   Shipping varies by weight.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:center\"\u003e\u003cspan style=\"font-family:Arial;font-size:1.13em;color:#CE0000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eTerms and conditions \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cspan style=\"font-family:Arial;font-size:1.0em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eAll sales are final. Returns accepted if item is not as described.  Contact us before making a return.  No warranty is stated or implied. Please e-mail us with any questions before bidding or buying.   \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:center\"\u003e\u003cspan style=\"font-family:Arial;font-size:1.5em;color:#000000;font-weight:normal;font-style:normal;text-decoration:none;\"\u003eThanks for looking at our items.   \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align:left\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\n\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd style=\";padding:5px\"\u003e\n\u003cdiv style=\"text-align:center;width:99.9%;margin:auto\"\u003e\n\n\u003c\/div\u003e\n\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/td\u003e\u003c\/tr\u003e\u003c\/table\u003e\n\n\u003c\/body\u003e","brand":"RailroadTreasures","offers":[{"title":"Default Title","offer_id":45091845177540,"sku":"EB-396916984273","price":30.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2232\/7333\/files\/57_a60f02de-3a8a-4d78-9d6a-e3b9c419e84b.jpg?v=1755030991","url":"https:\/\/railroadtreasures.com\/products\/american-railway-signaling-principles-and-practices-symbols-aspects-ind-chapii","provider":"RailroadTreasures","version":"1.0","type":"link"}