US1103221A - Safety device. - Google Patents

Description

G. W. QUIN. SAFETY DEVICE.

APPLIOATION FILED JAN.14, 1914.

Patented July 14, 1914 Wi-l'weoozo I THE NORRIS PETERS CO.. FHOTO-LITHQ, WASHINGTON. D. C.

CHARLES W. QUIN, OF CENTRALIA, WASHINGTON.

SAFETY DEVICE.

Specification of Letters Patent.

Patented July 14:, 1914.

Application filed January 14, 1914. Serial No. 812,114.

To all whom it may concern:

Be it known that I, CI-IARLns WV. QUIN, a citizen of the United States, residing at Centralia, in the county of Lewis, State of Washington, have invented certain new and useful Improvements in Safety Devices; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. i

This invention relates to new and useful improvements in railway safety devices, particularly that class tending to prevent derailments.

The object of the present invention resides in the provision of means associated with the axle of a railway car which normally'tends to prevent derailment of the wheels carried by the axle and which, should derailment occur, will apply the emergency brakes of the train or give an alarm, said means being so associated with the axle that they are operative in all pivotal positions of the axle.

A further object of the invention resides in the provision of such a device whiclrmay be associated with any conventional form of railroad car without substantial modification thereof and which comprises a minimum number of parts so that it may be manufactured and installed at a comparatively low cost.

lVith these and other objects in view, the invention resides in the novel combination, formation and arrangement of parts to be hereinafter described and illustrated in the accompanying drawings and more particularly pointed out in the claims hereto ap.

pended.

Reference is had to the accompanying drawings wherein similar characters of reference designate correspondin parts throughout the several views and in which:

Figure 1 is an end elevation of a railroad car, with the improved device associated therewith, Fig. 2 is an end view of the device, Fig. 3 is a central vertical sectional view, Fig. 4 is a diagrammatic view showing the electrical circuits, Fig. 5 is a horizontal cross-sectional view and Fig. 6 is a side elevation of the lower portion of the device, showing a modification of the axle engaging member.

Referring now more particularly to the accompanying drawings, 5 designates gen erally the body of a railway car which includes the longitudinal sills 6. Disposed under the car is an axle 7 carrying at its endsthe wheels 8 seating on therails 9 and provlded with the usual flanges 10 engaging the innersides of the rails. For tending to prevent derailment of the wheels, asecurmg plate 11 is disposed under the intermediate sills and directly over the central portion of the axle. A cylinder 12 is profvided which is open at one end and which is provided at said end with a laterally extending flange 13, bolts 14 being passed through the flange and through the plate '11 into the sills 6 whereby the cylinder is supported. Slidable through a bore 15 formed in the bottom of the cylinder is a bar 16 whichis provided inwardly of the cylinder with a head 17. A strong expansible spring 18 is coiled in the cylinder between the plate 11 and the head 17 and the lower end. of the bar carries a member disposed over the axle and spaced slightly above the same. This member comprises a yoke 19 carrying a sleeve 20 at its bight portion which threadedly receives the lower end of the bar 16, a pin 21 being passed through the bar and sleeve to prevent any possible undesired displacement. The yoke is disposed with its arms embracing the axle and with its bight portion slightly spaced thereabove. The arms of the yoke are relatively wide so that they will not bind upon the axle. To reduce the friction which would otherwise result from engagement of the axle with the arms of the yoke, said arms are provided at their lower ends with cutaway portions 22, in which are positioned rollers 23 rotatable on shafts journaled in the sides of the arms and held against displacement by the pins 25 passed therethrough and through the arms. This form of the device is adapted for use when the car is provided with the well-known rigid or non-rotatable truck. Thus should the wheels tend to jump off the track, the axle will rise to engage this member before the flanges 8 can pass over the tops of the rails 9, and tend to raise the bar against the action of the spring 18 so that the spring 18 resiliently urges the axle down toward its proper position. It will be understood that the device operates in this manner when the train is traveling at a high speed and when the axle by means of the wheels striking a small ob struction'moves upwardly without imparting any substantial upward movement to the body of the car.

' In Fig. 6 a modification of the axle engaging" member is shown, by means of which the device is adapted for use on rotatable trucks, Instead of providing the yoke 19, there is provided merely a disk 2 6,'having formed cen trally on its top face the sleeve as in the aforementioned member. Thisdisk is of suflicient size that when the truck is partially rotated in relation to the car body, as"

' in going around a curve, the axlezwill always engage the disk for actuating the device in the manner previously described.

Means are providedwhereby rising of the axle will close an electric circuit whereby the emergency brakes will be applied or an alarm will be given when the axle has risen to a point at which there is danger of the wheels leaving the rails. "This means is accomplished byza plate of insulating ma-' terial carried by the centralportion of the plate 11 and having spaced contact fingers 28 secured on its bottom face by bolts 29' passed therethrough and through the plate 11. These contact fingers extend downwardly and have their free ends diverging. The bolts are spaced from the plate ll'by suitable insulating sleeves 30 and these bolts have threaded nuts on nuts 31 forming therewith binding posts for securing thewires 32 forming part of an electrical circuit including preferably magnet means 33 for setting the emergency brakes of the car. For closing'the circuit, a Stem 34: is secured on the head 17 of the bar. '16 by a flange 35 at its lower end and insulated therefrom by the plate 36. This stem carries at its upper end a ball 37 which when the axle raises the bar to the danger point engages between the contact fingers 28 and completes the electrical circuit therethrough;

From the foregoing it is. observed that a structure has beenprovided which is efii resiliently urging said member to said point of suspension, an electrical circuit carried by the car body and including means for stopping the car'and a normally open switch and means carried by said member forclosing the switch.

2. A device for preventing derailment comprising the combination with a car body and an axle, of a member slidably suspended ata pointspaced above the axle and resilient means forurgingthe said member downwardly to said point of suspension.

23. .A device for preventing derailment comprising the combination with a car body and axle, of a member slidably suspended from the car body at apoint spaced above "and adj acent the axle'and means resiliently urging the said member downwardly to said point of suspension.

4, A i device for preventing derailment comprising the combmation with a car body and an axle, of a cylindrical member suspended from the car body, a bar "slidable through theend'of the member and provided. 1 inwardly thereofwith a head, a spring disposed in the cylindrical member and bearing against the head and a yoke carried by the lower end ofthe bar'and having its arms embracing the axle.

In testimony whereof, I aflix my signature, in the presence-of two witnesses.

' CHARLES w. QUIN.

' 'VVitnesses:

E. R. THOMPSON,- J. F. R. WEBBER.

Copies of this patent may be obtained fo r fiye cents eachfby'addressiiig the Commissioner of Patents, Washington, D. O. I

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