. Locomotive engineering : a practical journal of railway motive power and rolling stock . d is worked and where the connec-tion is made. The locking brackets arenumbered to correspond with the levers,the locking dogs being stamped with thenumber of the bracket in which they areto be placed, and also at each end with thenimiber of the lock rod under that is done to make it easy to replace thebars and dogs, if for any cause they are re-moved from the machine. It will be noticed that in drawing the 629 locking lever forcing the dog over against the lugs of the other levers and locking t
. Locomotive engineering : a practical journal of railway motive power and rolling stock . d is worked and where the connec-tion is made. The locking brackets arenumbered to correspond with the levers,the locking dogs being stamped with thenumber of the bracket in which they areto be placed, and also at each end with thenimiber of the lock rod under that is done to make it easy to replace thebars and dogs, if for any cause they are re-moved from the machine. It will be noticed that in drawing the 629 locking lever forcing the dog over against the lugs of the other levers and locking them. If one of (T) LOCKS (2) the other levers @^_^^ has been re- (5) 1 1 versed, the dogwill strike FIG 11. ^-^ agamst the lug (7) 9 of that lever, ©and prevent theSPARE , .. , , lever that locks all the othersfrom being The locking represented by(7) the dog sheet is ®the same as thatwhich wasf^ given for the levers controll-(Vy ing a simple crossing, or as is shown in SiMPEE Crossing. n. Special locking, or the locking which -5® ®® @®Locking of Levers for. A Speciae Locking. *s to be made by one lever only, whenanother lever is in a certain position, isshown in Fig. 12. As shown, it consistsof a lug of special form, pivoted on thelocking bar in such a way that it can bemoved sidewise by the two dogs, betweenthe edges of which it projects, and also bemoved lengthwise with the lock rod, towhich it is attached. In this position the two dogs act as one,as the clearance space between the lugs istaken up, while if the special lug is with-drawn, it will allow either of the two dogsto be moved and a lever reversed. Claims are made for this style of lockingthat the arrangement of the bars permitsof the greatest amount of locking in thesmallest space, and since only the dogs,which are short, are driven by impact, thewear is reduced to a minimum; that, bybeing placed in a single tier, any requiredchanges may be easily made and the barseasily gotten at ; and, a
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroa, bookyear1892
