US1378800A

US1378800A - lafleur

Info

Publication number: US1378800A
Authority: US
Publication date: 1921-05-17
Anticipated expiration: 1938-05-17

Description

S. LAFLEUR.

AuToMATTc TRAIN sToP.

APPLICATION FILED NOV. I9, |920.

1,378,800. Patented May 17, 1921.

. UNITED STATES y lPATENT OFFICE.

' ffvsINAI LAFLEUR, or FOLEYE'T, ONTARIO, CANADA, lAssIcrNoR or ONE-THIRD rro J.

, EDOUARD coRoN, or MONTREAL, QUEBEC, CANADA.

AUTOMATIC TRAIN-STOP. l

lTo all @hom z't may concem i ject of the King of Great Britain, and resident of the town of Foleyet, in the Province of Ontario, Dominion of Canada, have invented certain new` and useful Improvements .in Automatic Train-Stops, of which the-following is a specification.

rlfhis invention relates to improvements in automatic train stop device,'and the objects of the invention are to rovide simple and effective means byV rwhich trains may be stopped whenever anylof the trucks supporting the car body become displaced or by- 'which accidents of a Aserious nature may be avoided; further objects are to provide anl invention of this character of simple construction, composed of few and simple parts, all well designed to perform the work required of them, and itconsists essentially of the improved construction hereinafter described in detail in the accompanying specifi'cation and drawings. In the drawings:

Figure l is a side elevation of the freightV f car having my invention applied thereto;

Fig. 2 is a plan view ofthe underside of the car with the car body indicatedin dotted lines.

Fig. 3 is a perspective view of the working parts of the device.

Fig. 4 is a perspective detail of the trip device.

In the'drawings like characters of reference indicate corresponding parts in all the figures. y e

Referringto the drawings:

A indicates a freight car, and B the trucks thereof, of which two vare shown; C indicates the train line pipe, D the triple valve. Vand E, the compressed-air reservoir, all o well-known construction; F indicates a release valve or angle cock of any convenient design having a controlling lever 10, designed when in the position indicated in dotted lines, to open the valveF, and thusV `,open the train line. pipe and apply the air brakes.' The valve F is connected to the train line pipe and to the triple valve by any convenient means.

l A T-.connection 11 connects with the pipe 12 leading` from the T-connection 13 on the train line pipe, the said VT valve 11 connecting on the side with a p Specification of Letters Patent.

Application'iled Novemberl 19, 1920. Serial No. 425,187.

Y The lever 10 is normally retained in closed position by means of a rod or link 15, ex-

tending to a ring 16, which is supported on an openhook 17 carried by a bracket' 18.

When the ring 16 is disengaged from the hoo.k,^thelever 10 lunder actuation of a spring 19, is designed toV move the valve F to open position, the opposite end of the spring 19 to that connected to the lever 10 being supported by an arm 20 formed on a bracket 21, both the brackets 18 and 21 lbeiig connected to the underside of the car Means are provided, according to the present invention, whereby'displacement of the trucks, or, in fact any other desired-part of thecar body, should disengage the ring 16 from the hook Y17, and thus cause application of the brakes. The .means IL have shown comprising a plurality of cables, wires or cords 22 each connected to theV ring 16 and extending over suitably placed pulleys 23 to the trucks.

In the embodiment I have illustrated, the cables 22 extend through perforations 24 formed in extension plates 25 on the ends of the truck, the cables having rings 26 at their extremity which will serve to retain them in position and which will also serve as a means of applying the brakes in the case of emergency, or, in the case of a runaway car.

It will be seen that any person adjacent to the car while it is passing at a moderate p or scope thereof, it is intended that all matter contained in the accompanying specification and drawings shall be interpreted as illustrative and not in a limiting sense.

What I claim as my invention is:

1. An automatic train stop comprising a valve operatively connected to the air brake system, adapted when opened to permit the escape of air and cause the application of the brakes, spring means tending to move the valve to open position, a trip device nor- `mally retaining the valve in closed position,

system, adapted When opened to permit the .escape of air and cause the application of the brakes, spring means tending to move the valve to open position, a trip device normally retaining the valve in closed position, and releasing means :tor the trip device operable by displacement of certain Vparts of carconstruction said releasing means being also manually operable. y

3. An automatic train stop comprising a valve operatively connected to the air brake system, adapted when opened to permit the escape of air and cause the application of the brakes, spring ine-ans tending to move the valve to open position, a trip device normally retaining the valve in closed position, and car trucks having perforated extension plates, and releasing means for the trip device including cables extending through the extension plates and having rings at their extremity, and pulleys supporting the cables.

4L. An automatic tra-in stop comprising an air release valve comiected to the air brake system, and lever controlling the same, spring means normally tending to move the lever to open position of the valve, a link connected to the lever, a ring on the link, a hook member supporting the ring and normally retaining the same, means for disengaging the ring from the hook, adapted to be operated by displacement of certain parts ol the car construction.

5. An automatic train stop comprising an air release valve connected to the air brake system, and lever controlling the same,

spring means normally tending to move the lever o open position of the valve, a link connected to thelever, a ring on the link, a book member supporting the ring and normally retaining the same, means for disengaging the ring from the hook, adapted to beoperated by displacement of certain parts of the car construction, the said means including' cables, and pulleys supporting the cables.

. ln witness whereof l have hereunto set my hand in the presence of two witnesses.

SINAI LAFLEUR. Titnesses V:

Arr. ARGHAMBAULT, J. E. CoiioN.