US788921A - Railway-brake mechanism. - Google Patents

Description

No. '788,921` PATBNTED MAY 2, 1905. C. J. A. MAGHUT.

RAILWAY BRAKE MECHAISISM.` APPLIOATION FILED JAN. 1 1. 1905.

3 SHEETS-SHEET l.

C. J. A. MAGHUT.

PATENT-ED MAY 2, 1905.

RAILWAY BRAKE MBCHANISM.

APPLIOATION FILED JAN. 11, 1905.

3 SHEETS-SHEET 2.

PATENTED MAY 2, 1905.

C. J. A. MACHUT. RAILWAY BRAKE MBGHANISM.

APPLIOATION FILED JAN.11, 1905.

s SHEETS-SHEET a.

UNITED STATES Patented May 2, 1905.

PATENT OFFICE.

RAILWAY-BRAKE NIECHANISM.

SPECIFICATION forming part of Letters Patent No. 788,921, dated May 2, 1905,

A Application filed January 11, 1905. Serial No. 240,542.

[o all whom, t 77mg/ concern:

Be it known that I, CHARLES J. A. MAcHU'r, a citizen of the United States, and a resident of Sheboygan Falls, in the county of Sheboygan and State of l/Visconsin, have invented certain new and useful Improvements in Railway-Brake Mechanism; and I do hereby declare that the following is a full, clear, and exact description thereof.

My invention relates to devices for operating the brakes of railway-cars; and it consists in certain peculiarities of construction and combination of parts, as will be fully set forth hereinafter in connection with the accompanying drawings and subsequently claimed.

In the said drawings, Figure 1 is a plan view of my improved brake mechanism in place beneath a car, the platform or floor of the car and the frames of the trucks being omitted and parts being broken away to more clearly show the construction of the novel operating devices. Fig. 2 is a detail longitudinal sectional view taken on the plane indicated by the line 2 2 of Fig'. 1. Fig. 3 is a detail transverse sectional view taken on the plane indicated by the line 3 3 of Fig. 1. Fig'. 4 is a detail Sectional view taken on the line 4 4 of Fig. 1.

Referring by numerals to said drawings, 1 1 represent the side pieces of the frame of the car-platform, and 2 2 the end pieces thereof. Below the end pieces 2 are Strips or supports 3 for the draw-bars 4. On each side of each draw-bar there are timbers 5 5, secured to the end pieces 2, and to the longitudinal timbers of the platform, not shown,) and to these timbers 5 5 are Secured angle-plates 6 6. 7 7 designate two horizontally-disposed levers whose inner ends are centrally united by pivot-bolt 8, secured to the draw-bar 4, (these levers being duplicated at the other end of the car beneath the other draw-ban) and each lever is further pivotally attached to and supported from one of the said angle-plates 6 by a pivotbolt 9.

At each end of the car-platform are transverse beams 10, secured to the under side of the side pieces 1 1, said beams being themselves provided with circles 11, resting on and pivotally Secured to the circles 12 on the bolsters 13 of the trucks, and on the upper face of each bolster are the levers 14 14, centrally pivoted,one on each side of the said circle 12, as shown at 15. At the inner or adjacent ends of the levers 14 14 the same are united by pivot-bolts 16 to the inner ends of horizontal rods 17, whose outer ends are connected by pivots 18 to the upper ends of levers 19. These levers 19 are pivoted at 20 to arms 21, projecting from the bolster 13, and below .these pivotal points the said levers are fastened to a brake-beam 22, carrying brakeshoes 23 at its ends. At the outer or further ends of the levers 14 14 they are .united by pivot-bolts 24 to the inner ends of horizontal rods25, whose outer ends are connected by pivots 26 to the upper ends of levers 27, which are pivoted, as Shown at 28, to arms 29, projecting from the bolster 13, on the opposite side from and nearer to the ends of the bolster than the described arms 21, and below the arms 29 the said levers 27 are secured to a brake-beam 30, carrying brake-shoes 31. The brake-beams 22 30 are connected by tierod 32, which is surrounded by a spiral spring 33 between said beams to keep them nominally apart, and hence to keep their brakeshoes against the wheels of the truck when the parts are in the relative positions shown in Fig. 1, with the draw-bars released from strain and at rest. Across the center of the car-platform is a transverse beam 34, (indicated by dotted lines in Fig. 1,) and to the under side of this beam at about the center thereof a horizontally-movable lever 35 is secured by pivot 36, the other end of this lever moving within a keeper 37, also secured to the under side of said beam.

The various horizontally-arranged levers are connected together by jointed or sectional rods, as now described. The outer ends of the connected levers7 7 have pivot-bolts 38, to which are connected eyebolts at the adjacent ends of the jointed rods 39, whose otherV ends are formed with eyebolts for connection to the described pivot-bolts 16 on the inner ends of the adjacent levers 14, while from the same pivot-bolts 16 long jointed rods 40 extend to the pivot-bolts 24 of the levers 14 on the bolster 13 of the truck at the opposite end of the car, and from the same pivot-bolts 16 other jointed rods 41 extend back to the pivot-bolt 8, which unites the inner ends of the said levers7 7. From the pivot-bolts 24, at the outer ends of the levers14 14 of one bolster 13, there extend jointed rods 42 to the pivot-bolts 16 at the inner ends of the levers 14 14 of the bolster 13 at the opposite end of the car, and next the said pivot-bolts 24, at the ends of the several levers 14, there are other pivot-bolts 43, from which there extend jointed rods 44 to pivot-bolts 45 on the hereinbefore-named central lever 35, and from the outer free end of said lever 35 there extends a rod 46 to a point adjacent to one end of the car, where there is a brake-rod 48, around which a chain 47 from the adjacent end of said rod 46 is wound in the usual manner of operating hand-brakes; but this operation serves to unset the brakes by withdrawing the brake-beam shoes from contact with the truck-wheels.

The operation of my device 'will be readily understood from the foregoing description of its construction, taken in connection with the accompanying drawings. When the car is1 connected to a train and in motion, the draft on either of the draw-bars 4 will pull on the described .horizontal levers through the described jointed-rod connections, and this will serve to draw the brake-beams on each truck toward each other and withdraw their shoes from the truck-wheels; but when the speed of the train slaclzens and the strain on the drawbars is relaxed the springs 33'will automatically force the brake-beams away from each other, and thus force their shoes against the said wheels.

In the regular operation of a train cornprised of cars equipped with my brake mechanism the brake-shoes will be released from contact with the truck-wheels by the draft on the draw-bars; but when a detached car, for example, is to be operated the hand-brake lever is to be employed to release the brakeshoes which are normally set against the truck-wheels when the car is not in motion.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is'` 1. In a railway-brake mechanism, the combination with the platform, trucks and wheels of a railway-car, of draw-bars, and pairs of levers pivotally secured together at their inner ends and to said draw-bars; a pair of levers pivotally secured to the bolster of each truck; brake-beams connected to and supported by said levers; jointed rods pivotally connecting the outer ends of the draw-bar levers to the inner ends of the bolster-levers, and other jointed rods pivotally connecting the outer ends of the levers on each one of the said truck-bolsters with the inner ends of the corresponding levers on the'truck-bolsters at the opposite end of the car.

2. In a railway-brake mechanism, the combination with the platform, trucks and wheels of a railway-car, of brake-beams connected to and supported by levers from the truck-bolsters and having shoes normally` bearing against the truck-wheels; a transversely-arranged rigid lever pivoted at center of platform and connected by jointed rods to the truck-bolster levers; a hand-brake rod; and a rod and chain connecting the same with the free end of said transversely-arranged lever, whereby a draft on said last-named lever will withdraw the brake-shoes from the truck- Wheels.

3. In a railway-brake mechanism, the combination withthe bolster-axles, and wheels of a wheel-truck, of a pair of brake-beams connected to and supported by levers from said bolster; brake-shoes on the ends of said brakebeams, a tie-rod connecting said brake-beams, and a spiral spring surrounding' said tie-rod between the beams, whereby the latter are normally kept apart with their shoes in contact with the truck-wheels.

In testimony that I claim the foregoing I have hereunto set my hand,at Sheboygan Falls, in the county of Sheboygan and State of Wisconsin, in the presence of two witnesses.

CHARLES J. A. MACHUT.

Witnesses:

ROBERT LIEBETRAU, HENRY MACHU'T.

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