US866033A - Railroad-truck. - Google Patents

Description

No. 866,033. PATENTED SEPT. 17, 1907.

J. W. JENKINS. RAILROAD TRUCK;

Imm

Il" E E IHN up um unlmf? wl .Lf l' No. 866,033. PATBNTED SEPT. 17, 19o?.

J. W. JENKINS.

RAILROAD TRUCK.v

APPLIOATION FILED JULYz. 1907.

' e SHEETS-SHEET z.

ru: mmm: "uns ce.. wnsumaran, n. c.

JOSEPH WASHINGTON JENKINS, OF MACON, GEORGIA.

RAILROAD-TRUCK.

specification of Letters Patent.

Patented Sept. 1'7, 1907.

Application filed July 2, 1907. Serial No. 381,881.

To all whom t may concern:

Be it known that JOSEPH WASHINGTON JENKINS, a citizen of the United States, residing at Macon, in the county of Bibb and State of Georgia, have invented certain new and useful Improvements in Railroad- Trucks; and do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawings, making a part of this specification, and to the letters and figures of reference marked thereon.

The present invention has relation to that class of railroad and other trucks in which is employed a sliding safety bed attachment for the purpose of avoiding accidents from any cause by the retention of the locomotive or truck upon the rails until the engineer is enabled to cut off the steam and cause the train to come to a standstill.

The means by which the above results are obtained is embodied in my former patent dated July l 1890 No. 431,057 and the present invention is designed as an improvement thereon in the special construction of the transverse bars substantially as shown in the drawings and hereinafter described and claimed.

Figure l of the drawings is a top plan view of a truck embodying my invention. Fig, 2 a longitudinal section taken on line 2 2 of Fig. l showing the truck upon the track. Fig. 3 is a detail perspective view of one of the transverse bars showing its special form which constitutes my invention.

In the accompanying drawings, the frame of the truck consists of the longitudinal bars A, B, O and D, and the transverse bars E, F, G and H, the axles a having their bearings in the longitudinal bars upon which are mounted the usual truck-wheels I.

The outer transverse bars E and H have upwardly projecting lugs c to which are pivoted the brake-shoes J and these brake-shoes are suitably connected to the brake-hangers K which latter are operated by `the rods d e.

The operating rods d e which are connected to the hangers K are also connected to a pivoted link INI, said link being pivotally connected between the two sections of a transverse central beam Lis operated by a lever-rod f.

The brake mechanism herein described is one of many forms that may be employed to advantage and I do not wish to be understood as limiting my invention to the means shown as any form of brake and means of operating the same may be used without departing from the principle of my invention. The transverse bars in my former patent were of uniform size and thickness throughout their length, consequently the downwardly depending flanges on the ends thereof would come in contact with the side track or switch thereby resulting in the liabilityof a wreck.

The transverse bars in the present invention although rounded or convex upon their under side to enable the bars to slide along the rails, and having the depending flanges at their ends as indicated at b, are unlike the form of bars in the patent referred to in that the bars are widest or highest at their center as shown at z in Fig. 3 of the drawings and taper gradually in a direction toward the ends thereof. This special form of transverse bar is of material importance in case the bar should come in contact with the track as said bar being higher at the center would allow the depending flanges at the ends thereof to pass over the side track or switch with which it may come in contact, thereby avoiding the possibility of accident.

In case the axle burns off in the journal boxes shown at N in Fig. l of the drawings, a bearing on the track is obtained through the medium of the transverse bars which will form a brake as it slides on the track and hold the wheels and axle in position and also allowing the brasses to be put in and taken out without the necessity of removing the longitudinal bars. I

Outside of the special form and construction of the transverse bars which constitute the essential feature of the invention, the general construction of the track and frame thereof may be yvariously modified and changed in the several details as may also the brake and operating mechanism thereof without in any manner affecting the successful operation of the transvere bars. y

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

In atruck frame, a plurality of transverse bars having downwardly extending flanges at the ends, rounded or convex upon the under side, said bars being highest at the center and gradually tapering in a direction toward the ends, substantially as and for the purpose set forth.

In testimony whereof I affix my signature in presence of' two witnesses.

JOSEPH WASHINGTON JENKINS.

Witnesses:

H. D. CUTTER, WM. LEE ELLIS.

Images