US1175613A - Brake-beam for railway-cars. - Google Patents

Description

S. A. CRONE.

BRAKE BEAM FOR RAILWAY CARS.

APPLICATION FILED DEC. 12,1913- 1 175 613, Patented Mar. 14, 1916.

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, BRAKE-BEAM FOR RAILWAY-onus.

Specification of Letters Patent.

Patented Mar. 14, 1916.

Application filed December 12, 1913. Serial No. 806,150.

To all whom it may concern:

Be it known that I, SETH A. CnoNE, a citizen of the United States, and a resident of East Orange, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in Brake- Beams for Railway-Cars, of which the following is a specification.

' The invention relates to improvements'in brakes for railway cars and the like, and it consists in the novel features and structure hereinafter described and particularly pointed out in the claims.

The invention pertains more particularly to brake-heads adapted to carry the brakeshoes and to the special means I provide for adjustably securing said heads on grooved. sleeves arranged on the ends of brake-beams.

The main object of the invention is to provide a very durablebrake-head lacking complexity and capable of being adjustably secured to the beam by very durable and inexpensive means adapted to thegroove in the sleeve on which the brake-head is mounted. v

The invention made the subject of this application embodies further improvements on the invention disclosed in Letters Patent of the United States No. 1,073,220 granted to meSeptember 16, 1913.

The invention will be fullyunderstood from the detailed description hereinafter presented, reference being had to the accompanying drawings, in which:

Figure 1 is a side elevation of a portion of one end of a brake-beam having thereon a grooved sleeve, brake-head and securing means embodying my invention; Fig. 2 is a vertical section through the same on the dotted line 22 of Fig. 1; Fig. 3 is a detached face view of a key employed in accordance with my invention for securing the brake-head upon the beam, and Fig. 4 is an edge view of the same.

In the drawings, referring to Figs. 1 to 4 inclusive, 10 designates the brake-head as a whole, and this head with the exception of the features embracing my invention may be of customary or any suitable form and construction. The brake-beam is numbered 11 and the sleeve thereon 12, said sleeve being formed with a circumferential groove 14 extending partly or entirely around the same, as usual, and receiving the head 10 in a manner well understood.

The brake-head 10 is preferably formed with a back portion 15 which is open at its center, as at 16, and said head has at one end of its open back a transverse opening 17 for one end of the key 18 and at the other end of its open back a flange or member 19 for a bolt 20 which passes through the same and a hole 21 in the adjoining end of the key 18 and receives a nut 22 by which the end of the key may be firmly forced toward said member 19 and its inwardly pro jecting bearing lugs 23, 24 effectually bound against the sleeve 12 on which the head is mounted. The frontwardly facing wall of the opening or slot 17 is convexed and the rear face of the lower end of the key 18 is concaved to fit and obtain a firm bearing against said wall, as shown in Fig. 2. The key 18 is substantially vertical and formed with the transverse bearings 23, 24 to enter the annular groove 14 in the sleeve 12 at points near the upper and lower ends of the opening 16 in the back portion of the head 10. The key 18 isslightly less in width than the groove in the sleeve 12 and also slightly less in width than the opening 16 in the back of the head, and when said key is on the head it lies between two side flanges 26 formed on said head and is exposed at its back, except at its lower end which is partly concealed behind the transverse bar or member 27, against which the end of the key has a firm hearing. The key v18 is a substantially rigid structure, although capable of limited fiexion under the pressure of the nut 122, as distinguished from a spring or flexible I regard the key 18 as a distinct improvement over the key shown in Fig. 7 of my aforesaid Letters Patent dated September 16, 1913, in that said key 18 has two widely separated bearing lugs 23, 24 to engage the sleeve 12, said lugs being in line with the upper and lower horizontal portions of said sleeve and affording advantages and a degree of efliciency which renders the head as a whole highly desirable. The upper lug 23 has a curved surface to engage the sleeve 12 b and the lower lug 24 is preferably slightly curved to engage said sleeve. The middle portion of the key 18 or that part between the bearing lugs 23, 24 is cut away so as to create an elongated recess and avoid any contact of the key between the lugs 23, 24 with the sleeve 12. The setting of the side edges of the key 18 between the flanges or integral sides 26 of the back of the head, is

12 or the part of the beam on which the head may be placed.

\Vhat I claim as my invention and desire to secure by Letters Patent, is:

1. In a brake beam, the combination with a brake-head having a transverse opening to slip over the end of the beam and rear wardly of said opening and between the integral sides of said head a vertical opening communicating with said transverse opening, a part of the beam on which. said head is mounted, an independent substantially vertical key in the back of said head extending along said vertical opening and having inwardly projecting separated bearin'g lugs bearing against the upper and lower horizontal portions of said part of said beam, means engaging one end of said k'eih and means for forcing the otherend of said key transversely toward theadjacent part of said head andsecuring it and comprising a bolt extended through ar portion of said head and said key and a nut on said. bolt for forcing said end of said key toward said part of said head.

2. In a brake beam, the combination with a brake-head having a slot in a portion of its back, the frontwardly facing wall of which slot affords a fixed bearing, a part of the beam on which said head is mounted, an independent substantially vertical key in the back of said head fulcrumed at one endon said bearing and having inwardly projecting separated bearing lugs engaging the upper and lower horizontal portions of said part of said beam, and means for forcing' the, other end of said key" transversely toward the adjacent part of said head and securing it.

3. In a brake beam, the combination with a brake head having a slot in the lower portion of it's back, the frontwardly facing wall of which slot affords a fixed bearing, a part of the beam on which said head is mounted,

an independent substantially vertical key in the back of said head fulcrumed at its lower end on said bearing and at its middle portion having upper .andlower bearing lugs projecting inwardly into engagement with upper and lower horizontal portions of said part of said beam, and means for forcing the upper end of said key transversely toward the adjacent part of said head and securing it. i v g c 4. In a brake beam, the combination with a brake head having a slot in a portion of its back the frontwardly facing wall of which slot affords a fixed bearing, a part of the beam on which said head is mounted, an independent substantially vertical key in the back of said head fulcrumed at one end on said bearing and having inwardly projecting separated bearing lugs engaging the upper and lower horizontal portions of said part of said beam, and means for forcing the other end of said key transversely toward the adjacent part of said head and securing it, the back of said head having a vertical opening to receive the said key and admit the bearing lugs for engagement with the part of the beam on which the head is a mounted.

Signed at New York city, in the county of New York and State of New York, this 11th day of December,A. D. 1913.

SETH A. CRONE.

Witnesses: MAR'ICN, CfiA S. Ci GILL;

Copies of this patent may be obt'ainedfor five'e'ents each, by addressing the*comniissioner or fatents,

' I Washington, D. 6;

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