US1790795A - Parallel-th - Google Patents

Description

C- Sr CARD Feb. 3, 193-1.

PARALLEL wnnowsrnme LOCK SWITCH STAND FOR RAILROADS Filed April :5, 1930 2 Sheets-Sheet l O 20 2614/, ,i O

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C. S. CARD Feb. 3, 1931;

PARALLEL THROW SPRING LOCK SWITCH STAND FOR RAILROADS Filed April 3, 1930 2 Sheets-Sheet 2 P 'teiikd I. i

. 1. am semi- DE R? t b b j Helium-meowsuin -1:0 1: wim: sire-uh ma -Images L lApnlicationfiled new a lead No. 441iaei. g j My invention relatesito a parallelthrow bar v spring lock switch stand'for railroads. a placed together'so that the offset end offone The objects of my invention are: barrests-1 against the; main portion of the First, to provide a hand; operating spring other bar, and the two bars jaresecured to- I j locking parallel throwrswitchzstand forright getherlby rivets r-By this constructiomaor left hand turnouts whichfiwill automatispaceXof suitable length isformedbetween callyhold the switch points. tight against the theoffset portions of thebars 5and G and- 0f rail. r fawidth corresponding tothe thicknesso fa Second, to provide a switch stand: for hand lever tofb'elater-j described aswill be 10 throwing'the switch points of right or left seen by reference to-Fig.3.:v The lower end hand turnouts that'is arranged and adapted of the leg ljterminates inarightangled foot to be placed on either side of a trackparallel 8 and the lowerend of the leg 2 terminates in with the rails, thus allowing it to be in-i a right angled foot 9which; extendsin a di- 7 stalled in narrow. tunnels." rection opposite to I the foot 8. Anlangle V 15 Third, to provide asimple, positively 0p; plate 10 is riveted at its upper endto the leg erating structural-steel constructed switch 1 as shown at,11, the horizontal portion'o'l stand of-great strength and durability for thisplate forming acf oot 8A which extends use especially in the narrow tunnels of coaljin a, direction'op'positeto the footfS. ,The and ore and-other underground mines. vertical portion'ofthis angle plate below its 20 I attain these objects by thewmech'a'nism riveted end is spaced from the leg 1 for a V illustratedin the accompanying drawingsin purpose which will presently appear. 7 i v which: I An angleplate 12 isriveted to. the leg 2 as Fig. 1 is a plan view'ofthe-improved shown at13 inFig. 3:a-ndthe horizontal porswitch stand. T 1 tion of this plate forrnsa foot 9A which Fig. 2 .is a side view thereof; extends in a direction oppositetothe footi9. 1 Fig. 3 is a perspective'viewo'f-one'le'g'o'f Ahorizontalcross bar. 14 is connected at one the switch-stand." g end-to-the leg2 by. one of the rivets 13 andits Fig. 4 is asectional view on the'line H opposite end passes betweenthelegland the of Fig. 2. i j V angle plate logandissecured'by a rivet/ 15 30 Fig. 5 is an end view-of the other leg of the which passes. throughthe angleplate 1 0; the

switch stand. I g bar 14 andi';the;leg -l,; as;; clearlyj shown in Fig. 6-is awplan view of thebell crank -Fig. 5.. K The m-i'dclleportion of thebar lis which connects the operatinglever and the slightly/offsetEfroniits endportion s asshown draw bar which is fconnected to the switch fat16,in" Fi gs.-' 3-ancl l and this. oifset portion as i t c r I 16..isindirectvertical linewith'thespaceX Fig. 7 is an edge-viewofthe'same; betweenthe offset portions?) and'6 of the- Fig. 8 is a sectional view "on the line- 85 8 horizontal: bars of-the switch stand; of Fig. Qand q I i g .The lower end-portion of a hand .lever717 Fig. 9 isa plan-view showin a main track is inserted in the space X betweenthe offset and right hand turnout and t e manner of --members5;and6 ofthe stand and, is secured connecting the switch 'pointsfwith the. imto themembersby-a pivot bolt 18. Thelowproved switchstand. a I. er end-of this l YQr is-provided withjalongi Referring to the accompanying drawings, :tudi'na'lslot 19 andv aspin QOIpaSses; through the letter Arefers-to aswitch stand which this slot and-through the upper ends of a f is made. up of two members, each ofiwhich pair of secondary levers QLwhich arepivot 9 comprises vertical legs 1 and 21 respectively 'allyzconnected centrallyoftheir.lengthsto which are bentoverat their uppe'r. ends in theofi'set portion i thecross bar- 14;; the I "line with the legs-to form: horizontal bars-13 crossbar being between the levers. One end and 4 respectively; the major portions-0t of a;:link;22;is{passedbetweenthe'lower-ends whichare slightly'ofiset from the restofthe :iofthe secondary levers-21, and is. pivotally upon the opposite ends of the pin 23 and the connected thereto by a'pin 23. The lower ends of a pair of (3011 springs 2d are hooked upper ends of these springs are hooked to eyes on the lower ends of a yoke shaped rod which passes through the hand lever 17 above the point of its pivotal connection with ties in the manner shownin 9, the feet 8 and 8A being secured to one tie and" the secured to the adjacent' tie, thus leaving an open space between the'sa1dpro]ect1ng por 'tions ofthe'base plates and the road bed as the point 34 is spacedfrom shown in Fig.2. The-feet 9 and 9A are secured to the base" plates 26 bybolts 27 and 28, the bolts 28 being of greater diameter than the bolts .Jand washers 28A are welded to, the undersides of the'plates 26 concentrio with theholes through which-the bolts 28 pass; Theibolts 28 are pivot bolts, and in the arrangement shown,ithe bolt 28 which passes through the foot 9 carries a bell crank 29 comprising duplicate jparallel members whichare separated by a spacing block 30 at the apex of, the crank, the washer 28A serving as a spacer between the bell-crank and the under side of the plate 26, as clearly shown in Figures2and8. The link 22 is given a quarter twist as shown'in Fig. 2 and its free end is passed-between the plates of the ad acent end ofthe bell crank and is secured thereto by a pivot pin 31'. 'To the opposite end of the bell crank '29 is pivotally connected one endofa link 32, which is preferably made of two superposed metal strips, a space being left between the free ends of thestrlps to receive oneend of a' draw bar 33 which is secured to a pair of switchpoints 34: and 35 of a right hand turnout, as shown in Fig. 9 In thisfigure, Band C refer to the'main track, rails and'Dan'd Etc the turnout rails. The rear end ofthe switch point 35; joinsfthe turnout rail D andthe' rear end ofthe switch point 3d joins the main track rail C; sothat when the pointsare in the position shown in Fig. the front end of the point 35, engages the main rail B, and the front end of the main rail. 0, thus opening the turnout. When the points are in the'freverse position, theturnoutis closed and the main track is open; this. ar-

rangement of the switch pointsbeing old and in general use. The draw bar 33- bears againstftheunder sides of the flangesof the railsB and E and extends beyond the rail 13 so as to have a bearing contact withthat mu, whenthe switch points are thrown to open the main track. The-switch points are securedto'thedraw' bar 33 by angle plates 36 whichare riveted to the points and to the bar, and strap irons 37 are riveted to the horizontal portions of the angle plates and to the bar, thus strengthening the connection between the draw bar and the switch points.

By the construction shown and described, the throw of the sw-itchlever 17 is parallel with thedirection of the main track instead of at-rig'ht-angles thereto, as inthe constructions. in present use, thus enabling the improved'swltch stand to be employed'in places 7 such as narrow tunnels, when it would be impossible to usea switch lever having a throw :at'right angles to tlie traclnwithout making feet 9 and 922. being secured'jto inwardly pro-- jecting portions of base plates 26 which are an opening in the; adjacent side of the tunnel wall. When it is" necessary to place the switch stand on the opposite side of the track from that shown in" Figure 9, the bell crank 29 is removed from the bolt 28 which passes 'throughthe foot 9 of the switch stand and is mounted on the correspondingbolt 28, which A passes through the opposite foot 9A; the ends of .the bell crank are then connected to the link 22 and to the adjacent end of the draw bar in the same manneras shown in Fig; 9.

I In operation, the switch points being in the position shown in Fig.9 or so 7 as to switch fromthe main track to the turnout, and it is desired. to close the'turnout and open the main track, the switch lever 17 is thrown in the direct-ion indicated by the 1 tion, thus closing the turnout and opening the main track. As the levers ,17 and 21 swing toward a. dead center line, the coil springs 2d are drawn upon or expanded, and as the levers pass the dead center line, the springs contractand not only complete the throw of the levers but look them' in these positions, thus holding the draw bar and parts connected therewith against accidental movement The springsthus act to auto- ,matically lock thelevers at the limit of their throw in either direction, thus preventing accidental shifting of the switch points.

'"The link 32forms a; swinging connection between the bell crank and the draw bar,

which permits the draw bar to move in a path defined by'the movement: of the switch points.

Having 'described niy invention; what I claim as new and desire to secure' byLetters Patent, is

'lrIn mechanism; of the characterhdescribed,' the combination with a railway track, associated'switch pointsgi-a draw bar connecting said switch points and a pair-of jcross ties; of a switch stand,.having opposite base members; inwardly projecting base plates on one .of said ties which support one base member of said stand and boltsextending through said base members and said base plate, the other base member being secured to the opposite tie; a bell crank 7 mounted on one'of said bolts; a link connecting one end of said bell crank and the adj avcent end of the draw bar; a hand lever v mounted on said stand to swing parallel with the track;an oppositely inclinedsecondary lever connected at its upper end to the slotted lowerend of the hand lever and a link connecting the lower end of the secondary lever and the other end of the bell crank, whereby when the hand lever is swung in either direction, the draw bar is moved at right angles tothe throw of the hand lever.

2. The combination with a railway track; a pair of associated switch points and a draw bar connecting said switch points; of

a switch stand adjacent said track; a hand leverand a secondary lever pivotally. mounted on said stand and inclined inopposite directions and parallel with the track, the upv 1 Y per end of the secondary lever having a sliding connection "with the lower end of' the hand lever, one leg of the switch stand being ver, thereby turning the bell crank to the switch points. 7 o

In testimony whereof, I aflix my signature;

CHARLES S. CARD.

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