US1056149A - Railway-car-vestibule door and trap. - Google Patents

Description

W. H. CARROLL.

RAILWAY CAR VBSTIBULE DOOR AND TRAP.

APPLICATION FILED AUG. 8, 1912.

Patented Mar. 18, 1913.

5 SHEETS-SHEET 1- v? QQiiwmf 5 SHEETSSHEET 2.

W. H. CARROLL.

RAILWAY GAR VESTIBULE DOOR AND TRAP.

APPLICATION FILED AUG. 8, 1912.

Patented Mar.

N S A N X N 4 6M RN IA// n////////// r H/ IN/ M I 4 o 1,. o w KN .3 mg m Q m\ m R mm mm C w 5 v x A u K M i W N .N mm. .mm Q mdrmfi m iwi/Mucous y W. H. CARROLL.

RAILWAY OAR VESTIBULE DOOR AND TRAP.

APPLICATION TILED AUG. 3, 1912.

Patented Mar. 18, 1913.

5 SHBETSSHEET 4.

W. H. CARROLL.

RAILWAY GAR VESTIBULE DOOR AND TRAP.

APPLICATION FILED AUG. 3, 1912. 1,056,149. Patented Mar.18,1913.

5 SHEETS-SHEET 5.

WILLIAM H. CARROLL, OF JERSEY CITY, NEW JERSEY.

RAILWAY-GAR-VESTIBULE DOOR AND TRAP.

Specification of Letters Patent.

Patented Mar. 18, 1913.

Application filed August 3, 1912. Serial No. 713,136.

To aZZ whom it may concern Be it known that I, l/VILLIAM H. CARROLL, a citizen of the United States of America, residing at Jersey City, Hudson county, New Jersey, have invented certain new and useful Improvements in Railway-Car-Vestibule Doors and Traps, of which the following is a specification.

This invention relates to improved mechanism designed more especially for opening and closing the outside doors and step-covering traps of railway cars as may be necessary to permit eXit and entracepf passengers at stations having either hlgh or low platforms, but the invention is applicable for operating any two independent structures requiring successive going and return movements, or requiring that one of the two structures be given going and return move ments while the other structure remains at rest.

The invention embodies improvements in mechanism of similar class described in my concurrent patent application having Serial Number 651,967, and has for its more special objects to dispense with springs in the door and trap operating traveler and slide mechanism while providing simple and e'llicient locking means on the traveler and slides for locking the door and trap in any open or closed positions to which they may be adjusted when operating the traveler preferably by an endless cable actuated by a trainman standing on the car platform or standing on the roadbed or elsewhere out side the car.

The invention will first be described and then will be particularly defined in claims hereinafter set forth.

Reference is made to the accompanying drawings forming part of this specification, and in which- Figure 1 is a broken sectional perspective view of the left hand portion of the rear platform of a vcstibuled railway car showing a hinged door open and a hinged trap closed. Fig. 2 is a detail longitudinal vertical section with both door and trap open, the section of the traveler and slide mechanism and connections being taken on the line 'oo in Fig. 3. Fig. 3 is a transverse vertical section taken on the line ww in Fig. 2. Fig. 4; is a detail sectional end elevation more especially showing auxiliary means for operating the door and trap from slide mechanism for operating a hinged door and trap at the right hand portion of the rear car platform. Fig. 11 is a vertical longitudinal section on the line 2 in Fig. 10. Fig. 12 is a sectional plan view showing modified connections successively operating an end platform sliding door and a central side sliding door. Fig. 13 is a vertical section on the line 2-2 in Fig. 12. Fig. 14: is a detail end elevation showing the crossed cable operating from outside the car the mechanism illustrated in Figs. 12 and 13, and Fig. 15 is a detail sectional plan view showing an uncrossed cable actuating sliding door mechanism at the opposite side of the car. Figs. 10 to 15 illustrate how the connections may be arranged to always open and close the car doors and traps at opposite sides of the car and by similar standard easily remembered rotative movements of the hand wheels shown for operating the cable connected traveler and slide mechanism.

First referring more particularly to Figs. 1 to 9 of the drawings, the letter A indicates the reciprocatory traveler. B is a primary slide carrying a pivoted hook C, and D is an adjoining secondary slide carrying a pivoted hook E, both slides B, D, being arranged at one edge or side of the traveler. At the opposite edge or side of the traveler are arranged two similar primary and secondary slides F, H, respectively carrying pivoted hooks G, I, these nine simple parts A to I constituting a traveler and slide mechanism adapted through suitable connections to open and close a car door J, and stepcovering trap K, when the traveler is reciprocated by any suitable means such as as endless cable L. This cable is operated by a hand wheel M, journaled on an upright of the car platform frame, and preferably also by a hand wheel 0 journaled on the end of the car body and operative from outside the car by a trainman standing on laterally beyond adjacent edge the station platform or at the side of the railway track. This mechanism A, to i, is arranged to work within a protecting ca ing R, secured flatwise underneath the floor 7) of the car body P, and the traveler ilL, projects from this casing at one end to permit its connection at Z to one side of the cable L. The reciprocatory traveler A, and the two outer slides D, H, may respectively have fixed pins (4, (Z, 71 running in straight guiding slots 9 formed in the casing It, and the two slides B, F, are guided edgewise between opposite edges of the traveler A, and slides D, H, respectively.

The traveler A has at one edge a notch 1, next which is a lug 2, and at its opposite edge the traveler has another notch 3 and an adjacent end lug 4, said lugs 2, -.l-, projecting laterally beyond respective opposite sides or edges of the traveler. The primary slide B at its outer edge has a notch a and an adjacent end lug t3, and the primary slide ll, at its outer edge has a notch Y and an adjacent end lug 8, said lugs t3, 3, projecting of the slider Each pivoted hook i (it, broadened at its oule part to give room laterally for formation in the hook (l. ot' a notch next the inner wall ot which is a ochii lug c, and for hirmation in the hook E, of a similar inner edge notch 10 next which 1: a locking l: and the hook G has a similar edge noun ll next which is a locking lug y, and the hoolc l has a similar edge notch 12 nerd which is a locking lug 2". The hook (I at its outer end has a pin 13 which slides in a suitable guide shown as a slot formed in the casing ll, and having a straightpart ll, an inclined part 15, and an end part 1t) which is about at right angle to the slot part 1 The book l at its outer end carries a pin 17 which slides in a guide slot having a straight part 18, an inclined part 1.9 and an end part 20 which is about at right angle to the slot part 18. The hook G at its outer end carries a pin 21 which slides in a guide slot having a straight part 22, an inclined part 2;"; and an end part 2st which is about at right angle to the slot part 22, and the hook I at its outer end carries a pin 25 running in a guide slot having a straight part 26, an inclined part 27, and an end part- 28 which is about at right angle to the slot part 26. The hooks C, E, G, l, necessarily move with the respec ive slides B, D, F, ll, and are in Oilfcct portions o'l said slides.

Figs. 1 to 9 of the drawings show that a rod 2%), pivoted at 30 to a lag on the secondary slide D, is pivot-ed at 81 to an arm 3-32 rigid on a segment gear 3?) tulcrumed at 3-lto the car body. This gear 33 engages a segment gear 35 fixed to the lower rigid vertical hinge pintle 36 of the car door J,

LOMLUM other secondary slide H, is fixed a lug 3T pivotally connected by a link 38 to an arm 35) r' 'dly fixed to the horizontal hinge bar it) jorn-naled in bearings 11 on the car platform frame and so fixed to the trap K that when said bar it) is turned onewjuarter around and back, the trap will be opened and closed. The cable l) passes around lower pulleys i2, 13, which guide its lower horizontal bight and direct its vertical bighl upward along an upright ot the car frame which may be the post ll at the outside oi the main end doorway to of the car body, but said vertical cable bight is intentionally passed upward next the extreme outer end upright 4-6 o'l the car platform in order to prevent interference of the cable or of its operator with exit or entrance of passengers at the main car doorway 4:5. Said verti *al cable bight is fixed to an upper pulley which fixedly carries the cable operating wheel M which has a handle in tor turning it. Flhould it be desired to use an outside operating wheel O, having a handle 0, one side oi the vertical bight of cable L is carried laterally over guide pulleys 4-8, in an auxiliary bight or loop Ii which passes around and is fixed to an inside pulley ll) whose shai t is journaled in. the car platform frame and fixedly carries said wheel 0 which thus is accessible from outside the car.

Before briefly describing the modificalions shown in Figs. 10 to 15 of the drawings, the operation of the above named parts shown in Figs. 1 to 9 will be described as 'lt'ollows, presuming that the wheel is used to actuate the cable L from the car platform.

in Figs. 2, 3, the door J and trap K are both open at which time the handle in of wheel stands on the radial line 8, in 2, and to which position the handle had been turned downward and to the right hand in direction ol arrow i, from the position at the radial line a. where the handle m stood when both the door and trap were closed as shown in Figs. 5 and F. To close the open door and trap the wheel handle m. is turned downward. toward. the left hand in reverse direction of the arrow 75, for less than one revolution or itintil the iandle m, again stands on the radial line H.

Assuming that the door J and trap K are both closed as in Figs. 5 and 6, and that the train is approaching a station having a platform on a level with the closed trap K, said trap is to remain closed to allow pas sengcrs to walk over it after the door .l is opened. 'lo thus open. the door the handle an. oi wheel M is turned from radial line a in direction of arrow it, nearly half-way around to the position of Fig. 1. This carries the cable-c n1nected traveler A to the left hand troni the position of Fig. 5 to the for opening and closing the door. To the l position of Figs. 1 and 7, with the following results. Fig. 5 shows that at the beginning of this left hand movement the traveler lug 2 is within the notch 9 of the hook O of the primary slide B, and is held there by the hook pin 13 now in the straight part 14 of the adjacent guide slot while at this time the pin 17 of hook E on the secondary slide D, is locked within the outer part 20 of the adjacent guide slot by the hook lug 6 resting against the edge of the slide B a little behind its notch 5, whereby the door J is securely locked closed by the traveler and slide mechanism itself and independently of locking devices acting on or with the cable L, such as are shown in my prior com panion application No. 651,967. As the traveler A begins its left hand movement its lug 2 now engaged in the notch 9 of the hook C, draws this hook and the coupled primary slide B with it until the slide notch 5 opposes the lug e of the hook E of secondary slide D. The door J is unlocked when the lug 6 of moving slide B, strikes the hook lug e, and moves the pin 17 of v hook E out of the part 20 of the adjacent guide slot and into the inclined portion 19 of said slot which then swings the hook E inward and carries its lug (2 into the notch 5 of slide B, and fully engages the slide lug 6 with the notch 10 of hook E. Continued left-hand movement of the traveler A, by the engagement of its lug 2 with the hook C, will now draw the slide B and hook E with it and the hook E necessarily moves the slide D with it while the hook pin 17 moves along the straight part 18 of its guide slot, as indicated in Fig. 7. Meanwhile the pin 13 of the hook C had moved along the straight part 1st of the adjacent guide slot and outward along the inclined slot part 15 and into the locking slot part 16, whereby the notch 9 of hook C had been disengaged from the lug 2 of the moving traveler A, and when the traveler notch 1, passes the hook lug c, the end of this lug will bear against the adjacent edge of the traveler A to hold the hook pin 13 in the slot part 16 and thus securely lock the door J open, to which open position the door had been adjusted by movements of the indirect-acting connections 29 to 35 between the door pintle 36 and the moving secondary slide D. As the trap is to remain closed the traveler A is moved to the left-hand but slightly farther than is shown in Fig. 7, to allow the hook lug c to finally lock against the edge of traveler A, behind its notch 1 to confine the hook pin 13 in the slide-locking slot part 16, as in Fig. 8. After the passengers have left and entered the car at this station having a platform level wit-h the closed trap K, the open door J is again to be closed. This is done by simply turning the wheel M back to the left-hand or in reverse direction of the arrow 2, from the position of Fig. 1, until its handle m, again stands at the radial line 14, in Fig. 2, and during this action the traveler and slide mechanism operates as follows. Left-hand turning of wheel M draws the traveler A toward the right-hand. The lug 6 of slide B, now is fully engaged with the notch 10 of hook E, and the traveler A need move but slightly to the right-hand to bring its lug 2 against the lug c of the hook O whose pin 13 now will move out of the locking slot part 16, and as said pin moves along the cam slot portion 15, the hook lug 0 will enter the traveler notch 1, and the lug 2 of traveler A. will be fully engaged with the notch 9 of hook C, which will cause said hook and the coupled slide B to move with the traveler. As the slide lug 6 already engages the notch 10 of hook E, said hook and the coupled slide D will be moved to the right-hand and will cause reverse movements of the indirect-acting connections 29 to 35, to close the now unlocked car door J. Toward the end of said righthand movements of the parts A, B, C, D, E, the pin 17 in hook E, rides from the guide slot part 18 along the cam slot part 19 and into the locking slot part 20, thereby disengaging the notch 10 of hook E from the slide lug 6, and a slightly further righthand movement of traveler A, which is still engaged with the hook C, carries the slide B forward until its edge portion just behind the notch 5 stands next the hook lug e, and thus prevents withdrawal of the hook pin 17 from the slot part 20, thereby securely locking the door J closed, and all parts now are returned to relative positions shown in Figs. 5 and 6 of the drawings, with the door and trap both closed and locked.

Should the train next approach a station having a low platform requiring passengers to leave and enter by the car platform steps 51 shown in Fig. 3, both the door J and trap K must be opened as shown in Figs. 2 and 3. As the door swings open above the closed trap, the door must be opened before the trap is opened, and the trap must be closed before the door is closed. The opening of the door by a limited left-hand movement of the traveler A, carrying the parts B, C, D, E, from the positions of Fig. 5, to those of Fig. 7, has been hereinabove described leaving it necessary only to explain in detail the relative movements of the slides and hooks F, G, H, I, at the opposite edge of the traveler, and with more special reference to Figs. 7, 8 and 9 of the drawings. When the door J is locked open by the pin hook 13 held in guide slot part 16 by contact of hook lug 0, with the adjacent edge of the traveler A, the latter has moved a little farther to the left-hand than is shown in Fig. 7, and in Fig. 8 the traveler has continued its left-hand movement for nearly one-half the additional distance required of Fig. 9. Soon after the a of hook x1,

rides onto the edge of the moi" trareler it. behind its notch l, "k tno door J traveler lu res the log 9 hook inward from the trap went: guide :3 v

locking .iart of the a and then along the cam slot part 23 into the straight slot part 2. and causing ttnll open, the

engagement of the traveler: lug 4: with the notch 11 of hook G, wherebv said lug -el: now moves this hook and id r the primary sl with it, and as the lug 8 oi slide it, is now held engaged with the noteh oi the hook I while the hook iiin moves along the straight part of the adjacent guide slot, the secondary slide ll is now moved toward the left-hand by the ei'igaged trav eler and slide parts it, t} F, I. while the slide parts B, C, D, 1), remain at rest; and mianwhilo the open door J, is kept locked by contact of the hook log o with the moving traveler it. The direct-axting runnertions 3? to 4.0 between slide ll, and trap ii, assure that while the traveler it; moving from the position of 7 to that of Fig. 5), the trap is swung open upward, it being partially opened in Fig. 8, and full y open in Fig. 9. i s the traveler LL was about completing its left-hand movement the pin 25 ot hook I passed from the straight guide slot part it; and through the cam slot part into the locking slot part 28 whereby the hook I was thrown back to disengage its notch 12 from the lug 8 of ide I and the traveler tin-ally moves a little farther to the le'l'tdiancl to carry the outer edge of slide i behind. its notch 7, in front of ti o lug i of hook It, to securely lock the trap ii. open, and sul'istantially as the door J was and locked open. by the hook lug acting; directly on the traveler A. The wheel M now had been turned in direction oi arrow If to the position on the *adial line .9, shown in Fig. 2, and all parts have relative 'iositions shown in Figs. 2, and 9 of the drawings.

After the train leaves the low-platform station the trap iii, and door 5. must be closed and. this done by tiurnii'in the wheel M in reverse direction of the arrow i. as its handle 02?. moves )111 the radial line s to the radial line a in .l ig. F2. 'lhe non-h ll of hook G now enga es the 'raveler lug t.

as in Fig. l), and as the traveler It. is moved to the righhhand by the connected cable l1. j

the yin 21 of hook G runs alon the straieht part of the ad acent guide slot, and when the hi 8 of slide i strikes the lUQ' 2? ol hook I, it swlngs said hook inward thereby the the hook pin 25 from the looking into full engagement with the log 8 of slide F, and the hook pin next moves along the straight slot part 26, while the hook I carries slide H with. it to the right hand and slide H. operates the (.lirect-aeting connections A)? to $0, to close the trap K, at about the time the pin 21 of hook G had passed trom the inclined slot part into the locking slot part 2 L, thereby disengaging the notch ll of the now outmoved hook G, from the lug l of traveler it, and a slightly farther rightdrand advance of the trarolemoves its edge portion lying; behind the notch 23, opposite the log y, thereby locking the hook pin 21 in the slot part 2% to prevent: further rightdiand movement of the hooks G, it, and slides F, l, and to securely lock the trap K closed, but leaving the traveler A tree to make further righthand movement to the linal position shown in Figs. 5 and t), for closing and locking: the door J, by action of the hooks i C, and slides B. l), in manner hereinbetore 'lully explained. it after closing the trap K, by partial right-hand movement of the traveler it should be desired to at once reopen the tr: p, this may he done. by moving the traveler from intermediate position to its extreme leitt-hand position shown in Figs. 2 and 9. it thus appears that by this ion proved t'aveler and slide mechanism and suitable oonnections from the two secoml ary slides D, H, to the door Jr and trap l l, either door or trap may opened or the closed, and locked at either open, or closed adjustments, independently of each other as circumstances may require. The door or t tip, or other single structure, may be given QOlUQ' and return movements and be lorked by traveler and slide mechanism including primary and secondary slides operating at, only one edge or side of the. traveler. The. outside wheel 0 is necessi rily turned by the :able ll when the cable is operated by the wheel Ill, and the handles 0, m, of both wheels describe similar arcs of movement during like operation oil the door J. and trap K. Any other means, such as levers tnlornmed to the car and coupled to the cable, or pnemnatio or electric connections to the traveler, may be used for operating; the traveler and primary and secondary slide i'nechanisn'i in manner hereinbefore described.

The door and t up should always be opened or closed by similar easily remenr herod standard rotative movements of the cable ope 'ating wheel M, or O, whether the door and trap be at the left or right.- side o'l. a car platform, or whether an end sliding door and an intermediate side sliding door are to be opened or closedat opposite sides of a car by this traveler and slide 1necha nism. It is therefore deemed best to show in Figs. 10 to 15 of the drawings certain modifications of connections from the traveler and slide mechanism to such ditterently arranged doors or traps and to briefly describe such connections.

In Figs. 10 and 11. the slide H. operates the door J, by direct-acting connections comprising a guided rack bar which engages the door pintlc segment gear and is cou pled by a link 53 to a lever 5st tulcrumed at to the car body and in turn coupled by a link 56 to a lug 5T fixed to slide H. The trap K. is actuated from. the slide 1), by indirect-acting connections comprising a rack bar 58. carried by slide D, and engaging a segment gear 59 fixed to a countershaft 60, which carries a reversely arranged segment gear 61, engaging a segment gear 62, fixed to the hinge shaft $0 of the trap K. This is a reverse arrangement of connections from that shown in Figs. 1 to 9, wherein the door J is operated from the slide D, and the trap K, "from the slide H, and in Figs. 10 and 11, the door and trap are closed by a left-hand movement of the traveler A, and are opened by its righthand movement, which also is the reverse of the traveler action in Figs. 1 to 9, wherein the door and trap are opened by left-hand movement of traveler A, and are closed by its right-hand movement. By thus arranging the connections in Figs. 10 and 11. the door J will always be opened before the trap is opened, and the open trap will always be closed before the door is closed, and while the cableoperating wheels M, O, turn to the right or left hand through the same standard arcs of movementas are required for operating the door and trap in Figs. 1 to 9, at the opposite side of the car.

Figs. 12 to 14 show how the same traveler and slide mechanism A to I, is adapted to open the end sliding door S, before the intermediate side sliding door T, is opened, and to close the door T before the door S is closed, the door opening being ettected by right-hand movement of traveler A, which moves to the left-hand while closing them. The platform door S is coupled by a link 63, to one end of a lever 1 tulcrumed at 65 to the car body P, and in turn coupled by a link 66 to a lug 67 fixed to the secondary slide H. The side door T is coupled to one end of a lever 68 the other end of which has a. pin-and-slot connection at (39-70, with the car body. A rod 71 connects the lever 68 to the other secondary slide D. With these connections 63 to 71, it is necessary to cross the main vertical bight of the cable L at m, and to cross at Z the lateral cable bight L, leading to the outside operating wheel O, in order that the wheels M, 0, shall turn through the same standard arcs of movement as are required for opening or closing the car door and trap previously I? described.

Fig. 15 is introduced simply to indicate I through the known standard arcs of movement to properly operate the here uncrossed cable L.

In view of the aforesaid detailed description of relative movements of parts of the traveler and slide mechanism during unlocking and opening and closing and locking the car door and trap shown in Figs. 1 to 9, it is deemed unnecessary to repeat detailed statements of substantially similar operations of the traveler and slide mechanism shown in Figs. 10 to 15, which will readily be understood without further explanation. The scale of Figs. 12 to 15 being materially reduced in order to include the side doors T, in Figs. 12 and 18, it was deemed inadvisable to attempt to numerically indicate the tour slide hook pins and all parts of the tour guide slots in which the pins move during operation of the traveler and slides, as the identity and coaction of these pins and slots will be clearly evident from the above detailed description of the operation of similar parts shown in Figs- 1 to 9 of the drawings.

1 claim as my .invention 1. In mechanism of the traveler, a primary slide and a secondary character de-. scribed, the combinatlon of a reciprocatiory slide, the traveler and primary slide having mutually engaging and releasing shoulders whereby the primary slide is actuated by the traveler, and the primary and secondary slides having mutually engaging and releasing shoulders whereby the secondary slide is actuated by the primary slide, connections from the secondary slide to a structure to be operated, and means actuating the traveler.

2. In mechanism of the character de scribed, the combination of a reciprocatory traveler, a primary slide and a secondary slide, the traveler and primary slide having mutually engaging and releasing shoulders whereby the primary slide is actuated by the traveler, and the primary and secondary slides having mutually engaging and releasing shoulders whereby the secondary slide is actuated by the primary slide, connections from the secondary slide to a structure to be operated, means actuating the traveler,

and means locking the secondary slide and I the structure operated by it.

3. In mechanism of the character described, the con'ibination of a, reciprocatory traveler, primary and secondary slides at each edge of the traveler, the traveler and primary slides having mutually engaging and releasing shoulders whereby said primary slides are actuated by the traveler, and the primary and secondary slides having mutually engaging and releasing shoulders whereby the secondary slides are actuated by the primary slides, connections from one secondary slide to one structure to be operated, connections from the other secondary slide to another structinre to be independently operated, and means actuating the traveler.

t. In mechanism of the character de scribed, the combination of a rec-iprocatmy traveler, primary and secondary slides at each edge of the traveler, the traveler and primary slides having mutually engaging and releasing shoulders whereby said primary slides are actuated by the traveler, and the primary and secondary slides having mutually engaging and releasing shoulders whereby the secondary slides are actuated by the primary slides, connections from one secondary slide to one structure to be operated, connections from the other secondary slide to another structure to be independently operated, means actuating the traveler, and means locking the secondary slides and the structures operated by them.

5. In mechanism of the character described, the cfill'llfliilfliltu] oil a l'eeiprocatm y traveler having a projecting lug, a priniiary slide next the t 'aveler and having a. projecting lug, a hook pivoted to the primary slide and having a notch and an adjacent looking lug, a secondary slide next the primary slide, connections from the secondary slide to a structure to be operated, a hook piv oted to the secondary slide and having a notch and an adjacent locking lug, pins on the hooks, and relatively stationary guides engaging the hook pins and having straight, inclined and right-angular portions whereby the primary and secondary slide hook notches are respectively engaged with the traveler and primary slide lugs and are at proper times disengaged therefrom and when so disengaged the hook pins enter the right-angu lar guide portions and the locking lugs of the primary and secondary slide hooks rest respectively against the trzveler and primary slide and lock the secondary slide and the structure operate-d thereby at the end of both going and return movements of said structure.

6. In mechanism of the character described, the combination ot a reciprocatior traveler having at respective opposite edges tivo projecting lugs, two primary slides arranged one next each edge of the traveler and each having a projecting lug, a heel: pivoted to each primary slide and having a notch and an adjacent locking lug, tivo secondary slides arranged next the primary slides, connections from said secondary slides respectively to tvvo structures to be independently operated, a hook pivoted to each secondary slide and having a notch and an adjacent locking lug, pins on the prin'iary and secondary slide hooks, and relatively stationary guides engaging the hook pins and having straight, inclined and rightangular portions whereby the primary and secondary slide hook notches are respectively engaged with the traveler and primary slide lugs and are at proper times disengaged therefrom and when so disengaged the hook pins enter the right-angular guide portions and the locking lugs of the primary and secondary slide hooks rest respectively against the traveler and primary slides and lock the secondary slides and the two structures operated thereby at the end oil. both going and return movements of said structures.

T. in mechanism of the character described, the combination with a car vestihule door and trap, oil? a reciprocatory traveler, primary and secondary slides arranged a each edge of the traveler, the traveler and primary slides having unit-ually engaging and releasing shoulders whereby said primary slides are actuated by the traveler, and the primary and seconcary slides having mutually engaging and releasing shoulders whereby the secondary slides are actuated by the primary slides, connections from one secondary slide to the -ar door and trom the other secondary slide to the trap for opening and closing said door and trap, and means actuating the traveler.

R. in mechanism of the character dc scribed, the combination With a car vestibule door and trap, of a reciprocatory traveler, primary and secondary slides arranged at each edge of the traveler, the traveler and primary slides having mutually engaejing and releasing shoulders whereby said primary slides are actuat-el by the traveler, and the primary and secondary slides having mutually engaging and releasing shoulders whereby the secondary slides are actuated by the primary slides, connections from one secondary slide to the car door and from the other secondary slide to the trr p for opening and closing said door and trap, means actuating the traveler. and means locking the secondary slides and eo-nseipientlylocking the connected door and. trap at open and closed adjustments.

9. in mechanism of the cl'iaracter described, the combination with a car vestibule door and trap, of a reciprocatory traveler having at respective opposite edges tvvo projecting lugs, tvvo primary slides ar ranged one next each edge of the traveler and each having a projecting lug, a hook .for opening and closing them, a hook pivpivoted to each primary slide and having a notch and an adjacent locking lug, two secondary slides arranged next the primary slides, connections from said secondary slides respectively to the car door and trap oted to ach secondary slide and having a notch and an adjacent locking lug. pins on the primary and secondary slide hooks, relatively stationary guides engaging the hook pins and having straight, inclined and right-angular portions whereby the primary and secondary slide hook notches are respec tively engaged with the traveler and primary slide lugs and are at proper times disengaged therefrom and when so disengaged the hook pins enter the right-angular guide portions and the locking lugs of the primary and secondary slide hooks rest respectively against the traveler and primary slides and lock the secondary slides and con sequently lock the connected door and trap at open and closed adjustments.

10. In mechanism of the character de scribed. the combination with a car vestibule door and trap, of a reciprocatory traveler, primary and secondary slides ar ranged at each edge of the traveler, the traveler and primary slides having mutually engaging and I releasing shoulders whereby said primary slides are actuated by the traveler, and the primary and second-- ary slides having mutually engaging and re leasing shoulders whereby the secondary slides are actuated by the primary slides, connections from one secondary slide to the car door and from the other secondary slide to the trap for opening and closing said door and trap, an endless cable coupled to the traveler and running to the car platform, and means at said platform actuating the cable.

11.. In mechanism of the character described. the combination with a car vestibulc door and trap. of a reciprocatory traveler, primary and secondary slides arranged at each edge of the traveler, the traveler and primary slides having mutually engaging and releasing shoulders whereby said primary slides are actuated by the traveler. and the primary and secondary slides having mutually engaging and releasing shoulders whereby the secondary slides are actuated by the primary slides, connections from one secondary slide to the car door and from the other secondary slide to the trap for opening and closing said door and trap. an endless cable coupled to the traveler and running beside an upright of the car vestibule frame, and a hand wheel journaled to said upright and coupled to the cable for operating it by a trainman on the car platform.

12. In mechanism of the character described, the combination with a car vestibule i door and trap, of a reciprocatory traveler, primary and secondary slides arranged at each edge of the traveler, the traveler and primary slides having mutually engaging and releasing shoulders whereby said primary slides are actuated by the traveler, and the primary and secondary slides having mu tually engaging and releasing shoulders whereby the secondary slides are actuated by the primary slides, connections from one secondary slide to the car door and from the other secondary slide to the trap for opening and closing said door and trap, an endless cable coupled to the traveler and running beside an outer upright of the car vestibule frame, and means sustained by said upright and coupled to the cable for operating it by a trainman on the car platform and not interfering with exit and ent ance of passengers.

13. In mechanism of the character described, the combination with a car vestibule door and trap, of "areciprocatory traveler, primary and secondary slides arranged at each edge of the traveler, the traveler and primary slides having mutually engaging and releasing shoulders whereby said primary slides are actuated by the traveler, and the primary and secondary slides having mutually engaging and releasing shoulders whereby the secondary slides are actuated by the primary slides, connections from one secondary slide to the car door and from the other secondary slide to the trap for opening and closing said door and trap, an.end less cable coupled to the traveler and running to the car platform, means at said platform actuating the cable, said cable having a laterally extended loop or bight, and means engaging said lateral cable bight and operative outside the car to actuate the traveler and slide mechanism therefrom.

14. In mechanism of the character described, the combination with a car vestibule door and trap, of traveler and slide devices and connections therefrom to the door and trap, of an endless cable coupled to the traveler and running to the car platform, means at said platform actuating the cable, said cable having a laterally extended loop or bight, and means engaging said lateral cable bight and operative outside the car to actuate the traveler and slide mechanism therefrom.

15. In mechanism of the character described, the combination with a reciprocatory traveler A, having a projecting lug 2, of a primary slide B, having a notch 5, and lug 6, a hook G, pivoted to slide B, and having a notch 9, adapted to engage the traveler lug 2, and an adjacent locking lug 0, adapted to bear on the traveler; a secondary slide D, next the slide B, a hook E, pivoted to slide D, and having a notch 10, adapted to engagethe lug 6, of slide B, and an adjacent lock ing lug 0 adapted to hear on slide B, said hooks C, E, respectively having pins 9, 17 g a relatively stationary guide 1 15, 16, for the hook pin 9, and a relatively stationary guide 18 19, 20, tor the hook pin 17 means reciprocating the traveler, and connections from the slide D to a structure to he operated.

1.6, in mechanism of the character described the coinhination with a reciprocatory traveler it, having projecting lugs 2, t, ot a pi'iniarv slide B, at one edge of the traveler and having a notch 5 and lug 6, a hook 1 pivoted to slide B, and having a notch 9, adanted to engage the traveler lug 2, and an adjacent locking lug 0, adapted to hear on the traveler; a secondary slide D. next the slide 1% a hook ll), pivoted to slide D, and having a notch 10, adapted to engage the tag 6, of slide B, and an adjacent locking lug adapted to bear on slide B, said hooks C, It), respectively ha vine pins S), 17, a relatively stationary guide 14, 15, 1G, for the the hook pin 9, and a relatively stationary guide 18, 19, 20, for the hook pin 17; a primary slide F, at the opposite edge of the traveler and having a notch 7, and lug 8 a hook G, pivoted to slide F, and ha ving a notch ll, adapted to engage the traveler lug t, and an adjacent locking lug 9, adapted to hear on the traveler; a secondary slide it} next the slide F, a hook I pivoted to slide TL and having a notch 12, adapted to engage the lug 8, of slide 1* and an. adjacent locking" lug I, adapted to hear on slide l1, said hooks G, 1 respectively having pins 21., 25, a relatively stationary guide 2'), 23, 2 1-, for the hook pin 21 and a relatively stationary guide 26, 27 2S. tor the hook pin .25, means reciprocating: the traveler and connections from the slides l), H, respeetivel); to tivo structures to be independently operated.

lVUALliUt i Witnesses ALVIN K. Goonwin' G. A. C. BARNETT.

H. CARROLL.

Copies of this patent, may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, ID. 3.

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