US936819A - Switch-stand. - Google Patents

Description

Bl Rl' SWITCH STAND.

APPLIATION .FILED AUG.`28,1908.

. Patented Oct. 12, 1909.

3 SHEETS-SHEET 1.

BL R. SGTT.

SWITCH STAND.

APPLIOATION FILED AUG. 2811908.

Patented Oct. 12, 1909.

a SHEETS-sum1: 2.

ATTI/75".

' B. R. sooTT.

SWITCH STAND.v APPLICATION PYILBD AUG. 28, 1908.

Patented ot.'12,14909.

3 SHEETS-SHEET 3.

AIC/PF@ Nmo-umucmwins,wnsumawn D t;

. BEVERLY R. SCOTT, F CLEVELAND, OHIO.

SWITCH-STAND.

Specification of Letters Patent.

Patented Oct. 12, 1909.

Application filed August 28,1908. Serial No. 450,612.

To all whom it may concern:

Be it known that I, BEVERLY R. SCOTT, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented a certain new and useful Improvement in Switch-Stands, of which the following is a full, clear, and exactA description, reference being had to the accompanying drawings.

This invention relates to switch stands, and it has for its object the production of a device of that character having the following advantages over switch stands heretofore used: First, owing to the nature of the frame or casing and the small number of parts employed in the mechanism, my switch stand has the advantage of economy of manufacture due to its lightness; second, the parts are so mounted in the casing and the latter is so constructed that the mechanism of the stand may be readily removed orv replaced, thus making the stand simple in assembling; third; vthe main operating cam member is given a movement of translation as well as of oscillation, and is thus adapted to give the switch point rails a full throw with a comparatively slight movement of the said member, thus requiring a shorter range of action of the main operating lever; fourth, the shape of the operating cam is such as to provide a positive back lock against the shifting of the switch rails; or, by changing the normal positions of the main operating lever, the switch stand may be made automatic and capable of being thrown when a train runs through the switch; fifth, by the construction employed the banner is capable of being so changed on the banner. mast as to render the switch stand capable of use for sidings going in either direction.

The above and other advantages will be more specifically pointed out in the following description of the drawings forming a part of this application, in which- Figure l' is an end view of the switch stand; Fig. 2 is a transverse sectional view taken on the line 2-2 of Fig. 3, and looking in the direction of the arrow thereon; Fig. 3

is a longitudinal sectional view taken on the' line 3h23 of Fig. 1 and looking in the direction of the arrow; Fig. 4 is a plan view of the switch stand shown in Fig. 1; Fig. 5 is a sectional view through a portion of the banner mast; Fig. 6 is a plan view showing a railway switch and my switch stand for operating the same; and Fig. 7 is a diagrammatic view showing a development of the operating portion of the cam member.

The same reference characters refer to the same parts throughout the dierent views of the-drawings, and, taking up a full description of the invention by reference to such characters, A and B represent the main rails of an ordinary railway track and C and D represent the rails forming the switch, A and D being the switch-point rails, the rails being laid ,upon the ties E in the ordinary manner.

F, F represent ties of greater length than the ties E, upon the extended ends of which my switch stand is mounted. The rails A and D are connected by a tie-rod or bar G, the switch stand operating mechanism being connected ,to said tie rod.

The operating mechanism of the switch stand is mounted in a casing 1, said casing being open on its lower side and having lateral projections 2 which rest upon the ties F, F, being held thereto by spikes 3, as is usual in such constructions. Projecting downwardly from the casing 1 between the ties F at one end of the casing are eyepieces 4, the same-being connected by a pin or bolt 5 having a sleeve or roller 6 journaled thereon, for a purpose hereinafter stated. Directly opposite the eye-pieces 4, at the other end of the casing are similar eye-pieces 7, the lower portions of which are connected by a bridge 8. These eye-pieces are also connected by a pin or bolt 9 having a sleeve or roller 10 similar to the roller 6 hereinbefore referred to. Resting upon the rollers 6 and 10, which are intended to avoid excessive friction, and guided between the eye-pieces 4 and 7 so as to move longitudinally, is a slide bar 11, said bar being connected with the tie-rod or bar G of the switch-point rails, whereby, when said bar is moved back and forth, the switch will be opened and closed as desired.

For sliding the bar 11, I secure thereto, in any desired manner, journal pins 12, one of said pins being shown in Fig. 3. Upon these pins I journal anti-friction rollers 13, there being sufficient space left between the rollers for the reception of the edge of a cam 14, having a hub 15 and being secured to a longitudinal shaft 16 that isjournaled centrally in the Vends of the casing 1. The cam may be se- 1 cured to the shaft ,in any suitable manner,

as bya p in 1T extending throlglghiboththe shaft and the hub, the pin being'indicated in dotted lines in Fig. 3. u'Ihewshaftandeam are oscillated in the operation of the switch stand by means of a hand lever 18, saidlever preferably being provided at its free end with ahand grip 19. The two extreme po- 'sitions kof the hand lever are determined and Xed by stops and 21`Lwhichare spikedor 3 0 bolted to the ties F, F, against which stops athehandlerer zrestsgwhen in either .0f its .eX- tiremefpesitions, `andagainst whichr itmay, be

locked by inserting-anordinary padlock through an openingv 22 in ;t he upper ends of .1 frsaidastops theg stops @being ,provided with Shoulde rs 22 upon which theleverff rests.

:Asi shown in thefdrawings, the shaft 16 is i capable ofi, longitudinal movement in, its

`z loearings,and, as the hand-,lever -18 is swung,

g, Q @.gtheasaid; shaftgwillgbe; given such -longitudif nal movement. This movement `is produced by theicam: 14', thefoperating. edge vof which projects between stationary rollers 23..-whi Ch are journaled upon pins 24; that-.proj ect from l aaplate 25psaid plate beingasecuredfgini Athe upper` part of -thecasingin any suitable man- Lner, as by,l a -bolt 1 or. rivet v26. .As shown :in `the dra-wings, the pins and. rollers 13 and 23 are placed out ofalinementwith- .respect to goathel'shaftf 16; in order; that thecanr may not bindibetweengtherollers. Fromthisfdescrip- .,tion it yfvvill-ibe. Iunderstood that, as thercam 1414 @is .f rotated,f;it,. with :its :shaft 16, will, :be .i A'moved longitudinally :backand forth ,within ln-fFfig; I ha-,veiy showmin diagram a .de- .velopment lof f itl-1e; .operating ip ortion f of: `:the cam and-have.;alsoindicated the rollersjl?) and 23. Vllheadiagram.ingfulllines repre- ,1 ssents; zthei relative position .of `these rollers .=with respect. to the i cam when the.; switch i stand;4 is .in the lposition' shown in Figs.v l and i# 3. :Thedotted line position of thecam-4 repf resents the1position .fof these parts 4 when the' 4 5; 4 hand lever .is a thrown into, .its other extreme position. 25 From x this development itfwill be seen ath at the .engaging :p ortion-ofthe cam is i Vdivided ,into fourvparts, ethepartfbetween the :E dotted cross lines a and 5..being designated 5 0 a ,2 thel `part .betweenf the dotted cross; lines, b

and c fibeing. designated` bf, the part ibetween .the dotted cross; lines f c. and"y (l. being `desigmated c, and theremaining partbetween ,the dotted f cross-lines. cl, and? ai .being designated d. As will belseen, the .partsla/an'dc liein .-;pl anes. which are perpendicular; Eto -theaxis l or.' shaft 16. In: other. words,` they have; no -.pitcli. :The i vparts 122C: and di glie 1in Iplanes whichfare-inclinedefto the axis. orfshaft '16,'

601-a and therefore have a.l pitch. Preferablythe .parts @Fand c. each :occupyapproximately .one-sinth.-,of vithe circumference .off .ther cam, zwhile.; the parts bfaand; d eachl occupy, ap-

`4:proximatelyzoneethird pfgsaid circumference. 5.165 ,-ideferring. nowqto; Fig-'3, it will :be understood ith-att iffthe rollers123 were. omitted and the cam had no movement of translation, the sl 1de b ar 11 would be moved, upon one complete swing ofthe hand lever 18, a distance. equal to the vertical. projection of the inclined part Z1 of the cam upon the said bar. That is to say, the movement ofthe hand lever would bring the part a" shown in Fig, intoiengagement with the rollers 13, so that the bar 11 would be moved longitudinally until the.. space. between theV said rollers 23 simultaneouslywith fthe operation of; the part lb1againstthel.rollers 13. "The movement of translation ofv theicam is thereforenninltiplied two-fold,1 and the desired thrr0wA -nf theibar is secured.

Iris showngin Fig. 7, whenthelever 18 isfin .rits extreme positions, both sets :of rollers 13. ,and 23iengage with the; straight portionsof theycam V Thisprovides1-anf absolute back lock against-v xthe l antomatic` opening of V the switch; for, the sw1tch,cannot open vi tho ut moving the slide 11, andfasthe rollers 13 4thereon engage-with surfaces perpendicular to the Aline of their `motion they cannot iturn :the cam. When the switch stand is new and unworn, theseyrollers preferably rest against the Ysaid.;s traight portions of the cam near the endsggthereof. Owing to the-continued use .of the stand, the Ycam is liable qto become somewhat1worn, ;;so that these portions against which the rollers Ihave been bearing Abecome -f worn away and inclined, thus weak ening the lockingactionof the stand. When Vsuch arresultoccurs, the stops 20 and 21,1nay

bemovedfarther apart, so as to, permit the eperatmgglever 18toswmg ythrough a some- .,what-greaterarc, thereby bringing a fresh` portionof the ,caln opposite the rollers.

.Thesestopsf20- and 21 may also be so proportionedin v lengthgas to shorten the aic th-rough wl iich `the mainV lever swings and thus stop the cam with the rollers 13. and 23 at theends of butresting against the inclined portions 4of the cam. When ythus constructed, the switch is rendered automatic in its operation, and a train running through the switch1 would automatically throw the' operating lever and thus permit the train to pass. without breaking the stand or. r its. connections.

any of i: Combined-'with thei mechanism thus de- .scribedy and forming part of lany switch stand,r is af signal; ornbanner indicating the `condition of the track. 4The b anner consists preferably of two pairs `of blades or vanes 27;iand'228, indicating a clear track thrown switch respectively. These bl ades 'or;

and a vanes are secured to a tubular sleeve or meme Y tially equal to 90 degrees, thereby presenting the flat faces of the blades 27 and 28 to the view of the engineer. In Figs. 2 and 5 I have shown. my preferred connection between the shaft 30 and thetubular sleeve 29. It sometimes becomes desirable to change the switch stand and its connections so as to necessitate the changing of the blades 27 and 28. That is to say, if the bladesfhave been so positioned on the mast as to indicate an open track with the lever 18 swung into one position, and the stand or the switch is changed so as to reverse the position of this lever for an open track, it becomes necessary to reverse the banner. I have therefore adopted the construction referred to and have secured the tubular part of the-mast to 'the crank shaft by telescoping theone over the other and bolting the two together by means of the bolts 33. On one side of the sleeve 29 I form apertures 34 of tapering or conical shape and directly opposite said apertures I form bolt holes 35 of a size to accommodate the stem of the bolt. The bolt 33 is formed with a tapered head 36 which fits within the opening 34 and bears against the side of the crank 30. The nut 37 is screwed against the outer side of the tubular part of the mast, thus drawing the head 36 against the crank 30 and pressing the tube 29 against the opposite side of the crank, thereby tightly clamping the two parts of the mast together.

Theopen bottom of the casing not only makes the switch stand light in weight, but

makes it convenient in the assembling of the parts. Thus, the cam member may be placed in the casing and the shaft 16 extended through the casing Aand member and the pin 17 driven into position without removing any part of the casing. Similarly, the slide bar 11 and the bar 32 may be slipped into position, after which the pins 5 and 9 with their rollers may be inserted. The stand is dismantled for repairs with equal facility.

Various changes in the details of the construction illustrated and described may be resorted to without departing from the spirit of my invention. As one example of `such construction, I may mention the equivalent construction of having the engaging portion of the cam made a raceway which is depressed in the cam, into which raceway single rollers 23 and 13 may respectively eX- tend. The shaft 16 may also be held against longitudinal movement, and the cam so mountedthereon as to turn with the shaft but to slide freely thereon. I do not intend, therefore, that the following claims be limited to the details of construction shown any further than is rendered necessary by the specific terms employed therein.

I claim: y

1. The combination with the railway switch-point rails, of a switch stand, said stand having a frame, operating mechanism for said rails supported by said frame, said mechanism including a movable member, means stationarily mounted in one part of the frame and engaging with said member at one part thereof for preventing at that part movement of said member in one direction, a second member connected with the g5 said rails and engaging with another part of the first member, and means for moving the first member, said means being connected therewith at a point intermediate the said parts thereof, whereby the movement imparted to the said first member at the said point of connection is multiplied at the point of engagement with the second member, for the purpose specified.

2. The combination with the railway switch-point rails, ofa switch stand, said stand having a frame, operating mechanism for said rails supported by said frame, said mechanism including a movable member, means stationarily mounted in one part of the frame and engaging with said member at one part thereof for preventing at that part movement of said member in one direction, a second member connected with the said rails and engaging with another part of the first member, a hand lever, and means connected with the hand lever for moving the first member, said means being connected with the member at a point intermediate the said parts thereof, whereby the movement imparted to the said first member at the said point of connection is multiplied at the point of engagement with the second member, for the purpose specied.

3. The combination with the railway switch-point rails, of a switch stand, said stand having a casing, an oscillating member in said casing, means for oscillating the member, stationary means in the casing for causing said member tomove in the direction of its axis of oscillation when the member is oscillated in either direction, connections between said member and said rails for moving the latter as the member is moved, a banner-post, and means for turning the banner-post simultaneously with the movement of the rails. y

4. The combination with the railway switch-point rails, of a switch stand, said stand having a frame, an oscillating cam in Said frame, means for oscillating kthe cam, a .imember connectedV with the rails and-engaging with the cam, and means for, causing 'f the cani to move longitudinally as the same is rotated, thereby imparting a longitudinal motion to, said member and moving the rails.

5.` The lcombination with Athe `railway switch-point rails, of a switchstand, said stand having a frame, an oscillating cam in said frame, means for oscillating the` cam, a

,l member connected with lthe rails and engaging with vthe cam, means for causing the cam to move longitudinally asithe same is .rotated, thereby imparting a longitudinal `motion tosaidmember. and moving the rails,

; a banner-post, and: means for turning the `banner-post simultaneously with the move ment of the rails.

16.- The `combination with the railway switch-,point rails, of a switch staiidhaviiig v`a casing, an oscillating shaft journaled in A lsaid casing, a hand leverY connected-with the shaft foroscillating the same, a cam on said shaft and oscillating therewith, said cam havingy on its opposite sides portions inclined withy respect to the shaft, stationary means engaging-with the cam, a slide bar-l engag- Lso `ing the .caniv and connected witlithe-said rails, the slide bar and the stationary means ;simultaneously'engaging the 'inclined pori tions ofthe cam whereby, as the cam is osi cillated, one of said inclined portionseni gaging the stationary means williinpart to the cam a movement of translation, and the other :inclined portion of the cam engaging with the slide bar will move `the latter a dismotion in its bearings, a hand lever connected with the shaft for oscillating the same, a cam on said shaft and oscillating there- `with, said cam having on its opposite sides portions inclined with respect to the shaft, stationary means engaging with the I cam, a slide bar engaging the caniand con nected with the said rails, the slide bar and the stationary means simultaneously-engaging `the inclined portions of the cam whereby, as the cam is oscillated, one of said inclined portions engaging the stationary means will impart to the cam and the shaft a movement of translation, and the other inclined portion of the cam engaging with the slide bar will move the latter a distance greater than vthe movement of translation given to the cam and shaft.

f S. The combination with the railway switch-point rails, of a switch stand having a casing, a shaft journaled in the casino a D cam mounted to turn with said shaft, means y for turning the shaft, the operating part lof the cani having two linclined portions, a. stationary projectionin one part of the .casing engaging the cam, a slide bar in another part of the casing engaging the1cain, and rconnections between the slide k'bar and the lswitch point rails, the construction being such that, when the cani is turned the engagement of the stationary projection with one inclined portion of the cam shifts the latter in the direction of its shaft., andthe other inclined `portion of the cam engaging vwith the slide bar causes the latter to move a distance greater than the distance through --which the cam is moved.

9.,The combination with the railway switch-point rails, of a switch stand having a casing, a shaft jourii'aled in the casing, a cani mounted to turn with said shaft, means for turning the shaft, the operating part of the cam having two inclined portions, a stationary projection in one pai't of the casing ,engaging the cam, a slide bar in another -part of the casing engaging the cam, connections between the slide bar and the switch point rails, the construction being such that,

when the cam is turned. the engagement of the stationary projection with one inclined portion of the cam shifts the latter in the directioii of its shaft, and theiother inclined portion of the cam engaging with the slide bar lcauses the ylatter to move a distance greater than the distance through which the ,cam ismoved, a banner-post, and `means for turning` the banner-post simultaneously with the movement of the rails.

10. The combination with the railway switch-poiiit rails, of a switch stand having apcasing, an .oscillating shaft journaled in said casing and capable of longitudinal movement in its bearings, a member secured to said shaft and having` a peripheral cam, said cain having` two inclined portions, an anti-friction roller journaled in stationary bearings in one part of the casing, a slide bar in that part of the casing that is opposite the shaft from the said anti-friction roller, means on the said bar for engaging with the cam on the said member, and couneetions between the bar and the switch point rails, the construction being such that, when the said member is turned the cam thereon engaging with the anti-friction roller will zshift the member in the direction of the shaft, and the cani, also engaging with the slide bar, will move the latter a distance equal to twice the movement of the member` 11. The combination with the railway switch-point rails, of a switch stand having a casing, an oscillating shaft journaled in said easing and capable of longitudinal movement in its bearings, a member secured to said shaft and having a peripheral cam, said camhaving two inclined portions, an aiiti-frictioii roller Journaled in stationary bearings in one part of the casing, a slide llO shift the member in the direction of the shaft, and the cam, also engaging with the slide bar, `will move the latter a distance equal to twice the movement of the member, a banner-post, and means for turning the banner-post simultaneously `with the movement of the rails.

12. The combination with the railway switch-point rails,

of a switch stand having a casing, a shaft journaled in said casing and adapted to have longitudinal movement in its bearings, a member secured to the shaft and moving therewith, a cam projecting from the periphery of said member, a pair of anti-friction rollers secured in the upper part of the casing on opposite sides of the cam, a slide bar mounted for longitudinal movement in the lower part of the casing, a pair of anti-friction rollers on the slide bar extending on opposite sides of the cam, connections between the slide bar and the switch point rails, and means for turning the shaft.

13. The combination with the railway switch-point rails, of a switch stand having a casing, a shaft journaled in said casing and adapted to have longitudinal movement in its bearings, a member secured to the shaft and moving therewith, a cam projecting from the periphery of said member, a pair of anti-friction rollers secured in the upper part of the casing on opposite sides of the cam, a slide bar mounted for longitudinal movement in the lower part ofthe casing, a pair of anti-friction rollers on the slide bar extending on opposite sides of the cam, connections between the slide bar and the switch point rails, means for turning the shaft, a banner-post, and means for turning the banner-post simultaneously with the movement of the rails. 4

14. The combination with -t-he svvitch-point rails, of a switch stand having a casing, ashaft journaled in said casing, a member on the shaft and turning therewith, said member having a cam on the periphery thereof, said cam having two diametrically opposite portions which are in planes perpendicular to the shaft and two diametrically opposite portions which are in a plane inclined to the shaft, an anti-friction roller stationarily journaled .in the upper part of the casing and engaging with the cam, a slide bar in the' lower part ofthe casing engaging with the cam, a hand lever secured to the shaft for oscillating the latter, and connections between the slide bar and railway member, connec-Y the switch point rails, the construction being such that,when the hand lever is in its extreme positions the said roller and the slide bar will engage with those portions of the cam that are in planes perpendicular to the shaft, and in moving from one position to the other the inclined portions of the cam will shift the cam longitudinally and will carry the slide bar twice the distance said cam is shifted.

15. The combination with switch-point rails, of a switch stand having a casing, a shaft journaled in said casing and having longitudinal movement therein, a member secured to the shaft, said member having a cam projecting from the periphery thereof, said cam having two diametrically opposite portions which are in planes perpendicular to the shaft and two diametrically opposite portions which are in a plane inclined to the shaft, a pair of antifriction rollers stationarily journaled in the upper part of the casing and engaging with the opposite sides of the projecting cam, a slide bar in the lower part of the casing, a pair of anti-friction rollers mounted on said slide bar and engaging with the opposite sides of the projecting cam, a hand lever secured to the shaft for oscillating the latter, and connections between the slide bar and the switch point rails, the construction being such that, when the hand lever is in its extreme positions the said pairs of rollers will engage with those portions of the cam that are in planes perpendicular to the shaft, and in moving from one position to the other the inclined portions of the cam will shift the cam longitudinally and will carry the slide bar twice the distance said cam is shifted.

16. The combination with the railway switch-point rails, of a switch stand, means connecting the said rails with the stand for operating the rails when the stand is operated, a banner post for the switch stand, said post comprising a crank member and a tubular member extending over the end of the crank member, the said members having registering' holes for the reception of a connecting bolt, a bolt extending through said registering openings, the head of the the railway bolt extending through one side of the tubular member and resting against the crank member and the nut of the bolt engaging with the outer opposite side of the tubular member whereby the tubular member is securely clamped to the crank member.

17. The combination with the railway switch-point rails, of a switch stand, a slide bar in said stand, means for sliding said bar, connections between the bar and the rails for moving the latter when the bar is moved, a banner post, said post comprising a crank member and a tubular member, the crank member extending into the tubular member, banners connected with the tubular mem--

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