US352334A - marble - Google Patents

Description

(No Model.) -3 Sheets -Sheet 2.

P. MARBLE, Jr.

RAILWAY GATE.' N3 352,334. Patented NW9, 1333.

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RAILWAY GATE.

NO- 352.334. Patented'Nov. 9, 1886.

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@.QLA/m/ IINTTR STATES FREDERICK MARBLE, JR.,

PATENT OFFICE..

on oNEiDA, New YORK.

RAILWAY-GATE.

,SPECIFICATION 'forming part of Letters Patent No. 352,334-, dated November 9, 1886.

To all whom it may concern:

Be it known thatl, FREDERICK MARBLE, Jr., of Oneida, in the county of Madison, in the State of New York, have invented new and useful Improvements in Railway-Gates, of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact description. p

rlhis invention consists in improved means for automatically closing and opening the gates 0f railway-crossings bythe approach ot' the engine or train;

In the annexed drawings, Figure I is an elevation of my invention, taken at the side of the railway. Fig. II is al vertical section of the same. Figs. III and IV are enlarged detached views of the rear side of the devices, which are arranged near theA track to be actuated by the passing train and transmit motion to the bell and gate, respectively. Fig. V is an enlarged detached view of the devices for retaining the gate in its closed position, taken in a plane at right angles to that of Fig. I. Fig. VI is a plan view of the plate which sustains the upper end of the plunger. Fig. VIL is a detail view of the yielding platform, which is arranged between the two gates to raise the same automatically in case a horse is caught between said gates; and Fig. VIII is a plan view showing more clearly the arrangement oftthe ropes and pulleys by which n1otion is transmitted from the plungers at the side ofthe track to the gate.

Similar letters ot' reference indicate corresponding parts.

R'denotes the railway-track, and A one of the gates arranged at opposite sides of said track in a road crossing the said railway. This gate is arranged toA slide vertically on posts C C, and is counterbalanced byv weights o o, connected to the ends of ropes or chains b3 b3, which pass over pulleys pivoted to the top of the posts, and are attached at their op posite ends to the gate, the weights o o being sufficiently heavy to draw the gate to its elerated position.

d is a plunger, which slides on a vertical guide-plate, l0, secured to arigid frame or post underneath the track. The foot of said plunger is provided with acylindrical shank,which passes through an eye in alug, w', on the' base vas before described.

Application tiled July 9, 18?:3 Serial No. 171,103. (No modclJ ofthe plate w, a spring, e, interposed between the said lug and foot of the plunger serving to yieldingly sustain the plunger in an elevated position. To the upperend ofthesaidplunger is pivoted an arm, d', which passes through a slot, h', in a plate, h, firmly secured to asuitable support at the inner side ofthe rail R, as represented in Fig. VI of the drawings, the slot h being long enough to allow the upper end of the arm d to swing below the top of the rail. A weight, g', is connected with the arm d' in such a manner as normally to sustain it in an erect position. On the plate 'w is journaled a drum, D, and to the shaft ofsaid drum is attached a ratchet-wheel, g, as best seen in Fig. IV of the drawings.

On the plunger is a pawl, f, which engages the ratchet g, and imparts rotary motion to the same when the plunger d descends. Two ropes or chains,b b,are connected to the drum D,and

extend from thence around sheaves c a', journaled to the posts C C beneath the gate, as

shown in Fig. II of the drawings, and from thencc,thealoresaid ropes or chains are extended to and connected with the gate A. The described plunger d is arranged a proper distance from the road-crossing to allow a horse ample time to cross the railway and pass out of the gate before a locomotive or train running at high speed can reach the road-cross ing. As the locomotive passes over the arm d' of the plunger d, it depresses the latter, and thereby imparts rotary motion to the drum D, In the rotation of said drum the ropes or chains b b are wound up on the drum, and are thereby caused to draw down the gate A into its closed position. One of the ropes or chains b is wound'around or connected with the sheave a', so as to have a firm hold thereon, and to this sheave is attached a ratchet, c. On the post C is pivoted a pawl, k,which is weighted,so as to automatically engage the ratchet c, and thereby retain the gate in its closed position. At the slde of the rail R,a suitable distance from the roadcrossing and in the opposite direction from that of the location of the plunger d d', is arranged another plunger, m, which slides in a vertical guide-plate,w3,iirrnly secured to a post under the track, and is Sustained yieldingly with'its upper end nearly on a level with the top ofthe rail by a spring, e', forcing said plunger upward. On the plate w is pivoted an elbow-lever, n n', having the arm u con nected with the plunger m. To the other arm of said lever is connected a rope or chain, b, which is extended to and connected with one of the arms of a cranked lever, Z, pivoted to ,the post C above the pawl lr. The other arm,l,

of said lever presses on the pawl k above the fulcrum thereof, so that when a draftl is exerted on the rope or chain b the lever l is caused to throw the aforesaid pawl out of engagement with the ratchet c, and when this is el'ected thegate A is drawn up into its open position by the weights o v. Consequently when the locomotive or train passes over the plunger m and depresses the same the gate A automatically rises to its open position.

In order to guard against the'catching of a horse or team between the gates after they are closed, I arrange in the road-crossing between the two gates a platform, P, supported on springs t t, so as to allow said platform to settle when stepped on bythe horse.. To this platform I attach adownward-projecting stir-v rup, u, arranged in position for pressing the arm l of the lever Zagainst the pawl lc. Vhen the said platform is depressed,the pressure of the arm Z on the pawl k throws the latter out of engagement with the ratchet c, and thus causes the gate to riseto its open position, to

allow the horse or team to escape from the track.

p denotes another plunger, arranged at the side of the rail R at a proper distance (say one thousand feet) from the road-crossing,and sustained in a vertical position, and with its upper end nearly or quite on a level with the rail, bya guide-plate, 204, and spring e', similar to those which support the plunger m, hereinbefore described.

On the plate wis pivoted asector, q, and to the aXis of said sector is rigidly attached an arm, s, which is` connected with the plunger, so that by depressing the latter a-n oscillatory movement is imparted to the sector. The segmental face of the sector'is grooved, and in the groove lies a rope or light chain, 1,which is at one end secured to the sector q, and is thence extended over a pulley pivoted to the i upper end of a post, F, erected at the side of rthe railway, from which pulley the rope or chain is extended to a bell, B, arranged at the road-crossing- In the passage of a locomotive or train over the plunger p the latter is depressed and caused to impart oscillatory movement to the sector q, and this rings the bell B by means of the rope or chain r. Thus persons approaching the railway are put on guard by the signal of the bell before the locomotive reaches a dangerous proximity to the road crossing.

Having described my invention,what I claim as new, 'and desire to secure by Letters Patent, is-

1. In combination with the counterbalanced gate, the sheaves a a under the gate, the drum D, ropes or chains b b, extending from the drum around the sheaves andto the gate, the ratchet g, attached to the shaft of said drum, the plunger d, sustained in its elevated position by the spring e, the pawlf, connected to the plunger, the plate h, arranged at the Side of the rail R and provided with the guideslot h', and the arm d', pivoted on the plunger and projecting through the slottedplate h,and held normally erect by the counter-weight g', substantially as described and shown.

2. In combination with the connterbalanced gate A, sheaves a c', drum D, ropes orchains b b, extending from the drum to the gate, one of which is wound around the sheave a', the arm d', and mechanism for transmitting motion from said arm yto the drum, as set forth, the ratchet c, attached to the sheave a', the pawl lo, the lever l l', engaging said pawl, the spring-sustained plunger m, the levern, hav ing the arm n connected with the plunger, and the rope-or-chain b', connecting the lever n with the lever l, substantially as set forth and shown.

3. In combination with theoverbala-nced gate, the sheave a', rope or chain b,wound on said sheave and connected with the gate, the ratchet c, attached to the sheave cv', the pawl It, the platform" P, mounted on springs t, and the stirrup u, for transmitting motion from the platform to the pawl k, to throw the latter out of engagement with the ratchet, substantially as and for the purpose specified.

In testimony whereof l have hereunto signed my name and axed my seal, in the presence of two attesting witnesses, at Oneida, in the county of Madison, in the State of New York, this 6th day of July, 1885.

FREDERICK MARBLE, JR'. |:L.S.]

Witnesses:

J oHN 1%.'RowvLANn, E. G. STARK.

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