US1269983A - Safety-stop for mine-cars. - Google Patents

Description

S. VERBITSKY.

SAFETY STOP FOR MINE CARS.

APPLICATION FILED IAN. 29.19I8. I 1,269,983. Patented June 18, 191&

a SHEETS-SHEET 1.

IIVVENTOR Simon Verbitsky,

A TTOBWEY l/VVE/VTUR Simon T rbifslg By 4cm w ATTORNEY Patented June 18, 19l&

3 SHEETS-SHEET 2- S. VERBITS KY.

SAFETY STOP FOR MINE CARS.

APHICATION FILED 1AN. 29. 191a.

Patented June 18, 1918.

INVENTOR' Simon verwsk fan @i ATTORNEX 1 SIMON VERBITSKY, OF ST. CLAIR,'ZPENNSYLVANIA.

SAEETY-STOP FOR MINE-CARS.

Specification of Letters Patent. Patented J 119, 18, .1918,

Application filed January 29, 1918. Serial No. 214,297.

To all whom it may concern:

Be it known that I, SIMON VERBITsKY, a citizen of the United States, resident of St. Clair, county of Schuylkill, and State of Pennsylvania, have invented certain new and useful Improvements in Safety-Stops for Mine-Cars, of which the following is a specification.

This invention relates to improvements in safety stops for cars traveling upon inclined surfaces.

The principal object of the invention is to provide devices which may be readily attached to cars of ordinary construction, whereby they are prevented from running by gravity down an inclined surface, should control of the haulage cable become lost.

A further object is to provide means, should the car become unmanageable by reason of its rapid descent, for causing the car to stop, and also for preventing the end to which the power is normally applied from rising with respect to the opposite end.

These and other like objects are attained by the novel construction and combination of parts hereinafter described and shown in the accompanying drawings, forming a material part of this specification, and in which,

Figure 1 is a top plan view showing a car made in accordance with the invention.

Fig. 2 is a side elevational View of the same, the arms being shown in an engaged or stopping position.

Fig. 3 is a rear plan view of the same.

Fig. 4 is a side elevational view showing the arms in a normal position for the car to operate, and

Fig. 5 is a perspective view of the car and its attachments.

In the drawings, a pair of rails 10, supported by sleepers 11, form a trackway, particularly of such types as used in a mine, while overhead are rails 12 to which are attached cross strips 13, the same being substantially parallel with the rails 10 and uniformly spaced thereabove. Movable over the rails 10, is a car 15, the same here shown to be of conventional type, mounted upon wheels 14, engaging with the rails, the car having side frame bases 16 from which rise corner posts 17 and 18, and a center post 19.

Engaged between the front posts 17, is a bar 26, to which is attached the hauling cable 22,- by means of which the ear is drawn up the incline or allowed to descend, under control, by gravity. The bar 20 is engaged at its ends by braces 23, rigidly secured to the center post 19, so as to forma stable structure. The base beams 16, have their rear ends 26, extended somewhat beyond the rear of the car and mounted upon them are brackets 27, in which is journaled a shaft 28, having rigidly secured upon itthe hubs 29, of levers 30, terminating in toothed heads 31, standing normally erect. Similar levers 32, having heads 33, are secured pendently by their hubs 34, to a shaft 35, mounted in brackets 36, extending from the upper rear corners of the car.

Also engaged with the shaft 35, are segmental plates 38, to which are pivotally attached the ends of links 40, the lower opposite ends of which are connected pivotally to the levers 30, so that as the latter are turned outwardly, the segment plates are caused to rotate partially, holding the levers 32 outwardly in an obvious manner, the links 40 serving to connect the shafts 28 and 35 so as to operate synchronously. Formed through the segment plates 38,'are arcuate slots 42, in which are slid'a'bly received bolts 43, the same connecting with link rods 44, the opposite front ends of which are pivotally engaged with levers 46, secured upon a shaft 47, j ournaled in brackets 49, at the upper front corners of the car. On this shaft are secured levers50 having a corrugated heads 51, at their extending ends,

like those previously described.

Motion is communicated to the several levers by means of the spring 54, coiled around the shaft 28, so asto cause the levers .to extend outwardly and rearwardly at such times as they are free to act. This movement is normally prevented however, by means of chains 55, connected with cross arms 56, engaged with the sleeve 58, fixed on the cable 22, the chain passing alongside the car 15, in tubular rails 59, and are attached at their extreme rear ends to eyes formed in the levers 30.

From the foregoing it will be evident that should the cable 22 be broken or become loosened, the chain is slackened, causing the lever 30 to turn outward, and by reason of the links 40 the upper levers 32 are drawn up, the springs 54 acting to throw the levers 30 out and cause them to engage with the ties 11 upon which the track rails are secured and the levers 32 to rise, engaging with the cross ties 13 secured to the roof of the mine, thereby holding the car.

In order to prevent the front part of the car from rising, due to a sudden stop, the levers 50 are raised through the action of the links 44, but as the levers 50 are normally horizontal, less movement is conveyed to them, hence the use of the slots 42, in the segments 38, the same being so arranged that the levers 50 are raised co-incidently, to contact with the upper ties 13, by contact with the bolts 43 at the ends of the slot, the two positions being clearly seen in Figs. 2 and 4 respectively.

From the foregoing it will be seen that a system of levers is provided which will bring a car to an instant stop should, by accident or otherwise, the haulage cable be slaclrened sufliciently for the springs 54 to operate, and that the device can be readily applied to cars of present construction or provided in new installations.

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

1. In a safety stop for mine cars, the combination with a trackway, a car movable thereon, and a haulage cable engaged with said car, of an overhead track substantially parallel with the track over which the car travels, levers hingedly engaged at the rear of said car at the top and bottom thereof, the lower levers being capable of engaging with the main track, and the upper levers with the overhead track, springs operatively engaged with said levers whereby they are extended outwardly into engagement with the main tracks and the overhead track simultaneously, and means engaged with said cable whereby said levers are held normally out of operative position.

2. In a safety stop for inclined railways, the combination with a trackway, a plurality of cross strips arranged above said trackway, parallel therewith, a car movable on said trackway, and a haulage cable engaged therewith, of a pair of levers pivotally engaged with said car at the lower rear corners thereof, adapted to engage with said trackway when extended, a second pair of levers engaged with the upper rear corners of said car adapted to engage with said Copies of this patent may for holding. said levers closely adjacent to said tracks said holding means being engaged with said cable in such manner that should said cable become loosened, said holding means will operate all of the said levers.

3. In a safety stop, the combination with an inclined railway, a plurality of transversely disposed strips, arranged above said railway, a car movable on said railway, below said strips, a cable engaged with said car, levers pivotally attached at the rear of said car normally adjacent thereto, means for extending said levers upon slackening of the cable, levers pivotally arranged at the front end of said car, said levers being contactable with said strips, and connections between both pairs of said levers whereby they are operated in unison.

at. In a safety stop for inclined railways,-

the combination with a trackway, a plurality of transverse strips arranged thereabove parallel to said trackway, a car operatable on said trackway and below said strips, and a haulage cable attached to said car, of a pair of levers hingedly engaged at the lower rear portion of said car, said levers having ends adapted to contact with said trackway, a second pair of levers engaged at the upper rear portion of said car, said levers being engageable with said transverse strips, connections between the first and second named levers whereby they are operated in unison, means for normally holding the levers closely adjacent to the ends of said car, a third pair of levers hingedly engaged at the front upper ends of said car, said third levers having a head engageable with said transverse strips, link connections between said second and third pair of levers, means whereby said third pair of levers are given a lesser motion than said second pair of levers, and flexible connections between the first named pair of levers and said cable, said flexible connections being so arranged that should the cable be loosened all of said levers will operate to stop said car.

In testimony whereof I have affixed my signature.

SIMON VERBITSKY.

be obtained for five cents each, by addressing the Commissioner of Iatento.

Washington, D. G.

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