US369897A - Terbitoey - Google Patents

Description

(No Model.)

1 Sheet-Sheet 1. E. B. WARREN.

OAR BRAKE.

- U WITNESS INVENTOR a I 9 BY awn/w ATTORNEYS.

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3 SheetsSheet 2.

(No Model.) 7 Y E. B. WARREN. GAR BRAKE. No. 369,897. Patented Sept. 13, 18817.

INVBNTOR a 63% ATTORNEYS.

WITNESSES :3

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(No Model.) 3 Sheets- Sheet 3. E! B. WARREN.

OAR BRAKE.

No. 369,897. Patented Sept. 13, 1887.

WITNESSE 5 5 INVENTOR:

w E M g 5 ATTORNEYS.

N. PETERS, Pfmm-Lilhugnphcr, Washington, m;

Units STATES PATENT FFlCE.

ED\VARD BROOK VVARBEN, OF PLANKINTON, DAKOTA TERRITORY.

CAR-BRAKE.

.E-EPECIFICA'I'ION forming part of Letters Patent No. 369,897, dated September 13, 1887.

Application filed April 16, 1887. Serial No. 235,075. (No modeLl T0 aZZ whom, it may concern.-

Be it known that I, EDWARD BROOK WAR- REN, of Plankinton, in the county of Aurora and Territory of Dakota, have invented a new and useful Improvement. in Oar-Brakes, of which the following is a full, clear, and exact description.

My invention relates to railway appliances, and is an improvement in automatic car-brakes. Its objects are to provide steam-railway cars with a brake controllable from the locomotivetender, which will brake upon all the cars of the train through a separable brake-rod passing from the tender to the last car, and be as eliicient when the train is moving backward or upon curves and switches as when its course is forward or in a straight line, the setting and releasing of the brake-shoes being automatically conducted by the revolution of said brakerod.

The invention consists in certain novel featu res of construction and combinations of parts of the carbrake, all as hereinafter described and claimed.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a central longitudinal sectional view of a locomotive-tender with a portion of the mechanism of my improved brake applied thereto. Fig. 2 is a transverse sectional view of the same, a: a: in Fig. 1 being the line of section. Fig. 3 is a central longitudinal sectional view of part of a railway-car with the other portion of the mechanism of my improved brake applied thereto. Fig. 4 is a plan View of the same, the body of the car being removed; and Fig. 5 is a vertical sectional view of the brake-gearing mechanism of the car,

taken on the line 3 y in Fig. 3.

Beneath the center of the tender A, above its axles (t a, extends an elongated rod, B, in two parts, I) b, connected together by a swiveljoint, I)", and said parts turn in bearings c c, which depend from the trucks of the tender. The outer extremity of the part b has a suitable stop, Z)", formed upon it, and between said stop and the bearing 0 is encircled by a cushion-spring, 0 The outer extremity of the part b has suitably secured to it a head, 0,

' the tender is formed a worm, d, adapted to be engaged by a gear-wheel, d secured above it on the part I) of the rod B.

A lever, E, is pivoted ate to a lug, e, on the floor of the tender, to which lever is journaled alink, 6 which passes downward through a suitable opening in said floor, and is connected at e to the part b of said rod B. A pin, f, projects downward from the arm of said lever, and is embraced by a spring, f, seated in a cup or socket, J, in the floor of the tender, which spring acts normally to keep the arm of the lever in a raised position, the movements of said lever being guided by said pin.

Said lever may be held down by a catch or any other suitable means, if desired.

To the link c is pivoted at g a bent lever, g, carrying a pawl, g", which passes down through the floor of the tender and is adapted to engage with a ratchet-wheel, g", on the part b of the rod B, and the arm of said lever is connected to said link by a retracting-spring, h, which normally acts to hold the pawl g in the teeth of the ratchet-wheelgi The arm of the lever E is also provided with a suitable foot-plate, as shown at the right of Fig. 1 of the drawings.

An elongated rod, B, in two parts, I) Z), connected by a swivel-joint, b extends beneath the center of the car F above its axles a a, and has suitably secured to the outer extremities of its parts I) 1/ heads 0, having the same construction as the head 0 on the rod B, the tongues of which heads also project a little beyond the mouths of the draw-head l).

The part b of the rod B is sustained by and turns in the extremity of a forked hanger, G, which projects outward and downward from the truck of the car, and also turns in a bearing, h, beneath said truck, and between said hanger and the head 0 said part b is encircled IOO turns in a bearing, h, beneath said truck, and in a biangular bearing, H, secured to the inner face of said truck, the portion of said bearing which rests against the truck being prolonged below the same and having a vertical slot,'h formed in it. A spur-wheel, j, having spurs upon only one-half its periphery, is rigidly secured upon an axis, 70, which turns in the upper part of the bearing H, and is adapted to be engaged by a gear-wheel, Z, rigidly secured beneath it on the part b of the rod B, and to said spur-wheel j is connected a short chain, j,- or said axis and spur-wheel may, if desired, be located below the part b of the rod B, as indicated by dotted lines in Fig. 5 of the drawings.

To the inner face of the truck, to which is secured the hanger G, is secured a U-shaped bearing, I, provided with proper bolt-openings. A forked hanger, J, the arms of which project inward and downward and converge to meet the sides of one extremity of a horizontal beam, K, and to which said arms are bolted, is pivoted to the bearingI upon a hingebolt, Z. Beneath the other extremity of said beam K is secured a horizontal bar, m, which ranges in the slot ]L2 of the bearing H, and its extremity is threaded and provided with a suitable nut, or it may have a suitable stop formed upon it. The chain j, depending from the spur-wheel j, is connected to said bar, and the chain of an ordinary wheel-brake is carried down from the car-platform over a pulley on the car-truck above the section b of the rod B and connected in any suitable manner to a vertical rod, m, seated in said bar.

Upon the beam K is carried a fan-shaped gear-plate, L, constructed with wings a, suitably apertured to adapt said plate to be connected to thebrake-levers, and havinga curved slot, n, in its head'portion. A bar, 0, bolted to the beam K, and through which pins 1) and q pass into said beam, holds said plate on the beam, said plate being adapted to turn on the pin p, guided by the pin q, as it ranges the slot n. Said plate L is adapted to be geared with a worm, (1, formed on the axle a of the car.

Brake-levers R are pivoted upon a link, 1', attached to one of the brake-bars, (see Fig. 4,) their short and long arms being respectively connected by rods 8 s, pivotally attached thereto, to the opposite brake bar, and to chains t, leading to the wings of the gear-plate L, the rods 8 being provided with retractingsprings a, which normally act to center the plate L upon its beam when not geared with the worm d.

The heads 0 and O are adapted to fit into each other as the cars and tender are coupled together, thus enabling the tender to be coupled to either end of the car, and when so coupled a continuous brake-rod, B B, is established beneath the entire train. I prefer to construct each of the rods B and B" in two parts, and to connect said parts by a swiveljoint, as shown in Figs. 1, 3, and 4 of the drawings, in order to prevent possible fracture of the rods in turning sharp curves or in making quick switches. The slip-joint connection of the heads 0 C also contributes to the same end.

It will be understood that the brake-bars of the truck of the car, as shown at the left of Fig. 3, may have similar brake-levers connected to them, as shown at the right of said figure, and attached by suitable rods or chains to the wings of the gear-plate, if desired.

The operation of my improved brake is as follows: By applying pressure to the foot-plate of the lever E the link 6 forces the part b of the rod B downward and engages its gearwheel 61 with the worm d on the axle a of the tender. As said axle revolves, the rod B is turned, the pawl g slipping over and engaging the teeth of the ratchet-wheel g and preventing a reverse movement of said rod. As said rod revolves, its head 0, which is interlocked with the head 0 of the rod B, causes said rod B to also revolve. Its gear-Wheell takes into the teeth of the spur-wheel j and turns the same, and said spur-wheel j draws up its chain j, thus elevating the hinged beam K and gearing the plate L with the worm d of the axle a of the car, the bar m ranging upward in the slot h of the bearing H and guiding the beam K as it rises. When said plate L is in gear with said worm, the revolution of the axle a, bearing the worm d, causes the plate L to. swing to the left or right, as shown by dotted lines in Fig. 4, according to the direction of the train. Its wings operate the chains and rods leading to the brake-levers, and said levers in their action draw the brake-bars and their shoes tightly against the wheels and retard and stop their revolution. When the train comes to a standstill, the .arm of the lever Eis released, its spring f forces it upward, and, the arm of the lever 9 being moved outward from said lever, the gearwheel and ratchet-wheel on the rod B are released and said rod reverses its revolution. At the same time the gear-wheel on the rod B turns back as said rod reverses its revolution, releases the tension on the chain j, the spurwheel j returns to its normal position,andthe beam K, carrying the gear-plate L, falls to its original position, and the teeth of said gearplate are ungeared from the worm d. Simultaneously therewith the reaction of the brakeshoes and the action of the springsu combineto restore the gear-plate L to the position shown in full lines in Fig. 4. In case the engagement of the spur-wheel j and the gear-wheel lon the rod B does not at once or quickly enough raise the beam K to gear the plate L and worm d, the wheel-brake on the car-plat,- form (not shown) may be operated to raise said beam, the release of its chain contributing to ungear said plate from said worm.

The plate L is adapted to swing either to the right or left upon the pin 19, so that if the train be moving backward it will operate to IIO set the brake-shoes against the wheels as efficiently as when the direction of the train is forward, and as well upon curves and switches as on straight tracks. \Vhile the connection of the heads 0 O is firm enough to insure the simultaneous revolution of the brake-rod sections B B, it is yet free enough so that, supplemented by the swivel-joint connections of the parts of said rod, curves and switches may be made by the train without lessening the power of the brake-rod to any appreciable degree and there is free vertical play between I the cars.

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

1. In an automatic brake, the combination, with the brake-levers, of a swinging gearplate connected to said brakelevers, a gearwheel on the axle, and means for throwing the gear-plate in and out of gear with the gear-wheel on the axle, substantially as herein shown and described.

2. In an'automatic brake, the combination, with a gear-wheel on the axle, a swinging gear-plate, and brake-levers connected to said swinging gear-plate, of a horizontal brakerod, means for revolving said rod, and intermediate mechanism'for throwing the swinging gear-plate into gear with gear-wheel on the axle by the revolution of the said rod, substantially as herein shown and described.

3. In an automatic brakadhorizontal brakerod centrally located beneath the locomotivetender, formed in two parts, having a swiveljoint connection,and turning in suitable bearings above the axles of the tender, a head on the outer extremity of one part of said rod adapted to interlock with corresponding heads on a similar brake-rod beneath the car, agearwheel on said rod fitted to be engaged with a worm on one of the axles ofthe tender, a ratchetwheel adjacent to said gear wheel, and means for setting said wheel upon said worm and for engaging said ratchetwheelto prevent said rod from reversing its revolution, all constructed as described and shown, and for the purpose set forth.

4'. In an automatic brake,a horizontal brakerod turning in bearings beneath the center of the tender above its axles, said rod formed of two parts, swivel -j ointed together, a pressurelever mounted upon the tender, a link journaled to said lever and connected to said rod, a geanwheel and a ratchet-wheel on said'rod at either side of said link-connection, a bent lever carrying a pawl pivoted to said link,and a head on the outer extremity of one part of said rod fitted to interlock with corresponding heads on a brake-rod beneath the car, all constructed substantially as shown and described, and for the purpose set forth.

5. In an automatic brake, the combination, with a locomotive -tender having a worm formed upon one of its axles and a pressurelever mounted upon its floor, a link connecting said lever and a horizontal brake-rod, and a bent lever carrying a pawl pivoted to said link, of a horizontal brake-rod in two parts, swivel-j ointed together, centrally located in bearings beneath the tender above its axles, and provided with a gear-wh eel adapted to be engaged with said worm, and a ratchet-wheel adapted to be engaged by said pawl, and having on the outer extremity of one of its parts a head fitted to interlock with corresponding heads on a similar brake-rod beneath the car, substantially as and for the purpose described and shown.

6. In an automaticbrake,ahorizontal brakerod centrally located beneath the car,formed in two parts, having a swivel-joint connection, and turning in suitable bearings above the axles of the car, a head upon each of its outer extremities adapted to interlock with a corresponding head on a similar brake-rod beneath the tender, and a gear-wheel on said rod engaged with a spunwheel located parallel with said rod in its vertical bearing, said spurwheel having a suspension-chain fixed to its axis, all constructed substantially as shown and described.

7. In an automatic brake, a horizontal beam suspended between the trucks of the car upon the extremities ofthe arms of a forked hanger hinged to one of said trucks and upon the extremity of a chain depending from the axis ofa spur-wheel located in a vertical bearing fixed to the side of the opposite truck,and a swing ing gear-plate pivotedupon said beam,adapted to be engaged with a worm on the axle of the car, and connected by suitable rods and chains to the brake-levers, all constructed substantially as shown and described.

8. In an automatic brake, the combination, with a railway-car having suitable bearings for a horizontal brake-rod fixed beneath and to the sides of its trucks, one of said bearings being vertical and biangular and supporting the axis of a spur-wheel carrying a suspension-chain, of a horizontal brake-rod formed in two parts, having a'swivel-joint connection, and provided on its outer extremities with heads fitted to interlock with the head of a similar brake-rod beneath the tender, said rod turning in said bearings and having fitted upon it a gear-wheel which engages with said spur-wheel, and a gear-plate pivotally connected to a horizontal beam suspended between thetrucks of the car upon said chain, and the ends of a forked hanger hinged to the truck opposite said suspension-chain and being fitted to be engaged with a worm on the axle of the car, and said gear-plate being suitably connected to the brake-levers of the car, all constructed substantially as shown and described, for the purpose set forth.

9. In an automatic brake, a horizontal brakerod centrally located beneath the locomotive tender, formed in two parts, swivel-jointed to get-her,andturning in bearings above the axles of the tender, an interlocking head at one end ITO of said rod, and a gearwheel and ratchet-wheel near its other end, ahorizontal brake-rod centrally located beneath the car, formed in two parts, swivel-jointed together, and turning in bearings above the axles of the car, an interlocking head at each end of said rod, a gear wheel on said rod engaged with a spur-wheel turning on its axis parallel with said rod, a gear plate pivotally connected to a beam suspended between the trucks of the car upon a forked hanger hinged to one of said trucks and upon a chain depending from the axis of said spur-wheel, said gear-plate being fitted to engage with a worm on an axle of said car by the turning of said rod and being suitably con nected to the brake-levers of the car, a press ure-lever mounted upon the tender, connected by a link to the brake-rod beneath the same, and a pawl pivoted to said link and ranging said ratchet-wheel, the gear-wheel on said rod being fitted to be engaged with a worm on an axle of the tender by the depression of said lever, all constructed, arranged, and adapted to operate substantially as set forth.

10. In an automatic brake, the rods B B, constructed in two parts, I) I), connected by a swivel-joint and provided with the heads 0 G, the gear-wheels d Z, and ratchet-wheel g in combination wit-h the pressure-lever E, link e and bent lever and pawl g 9 substantially as and for the purpose shown and described.

11. In an automatic brake, the rods B B, constructed in two parts, I) 12, connected by a swivel-joint and provided with the heads 0 G, the spurwheel j, carrying the chain j, the gear-wheels (Z Z, ratchet-wheel g pressure-lever E, link 6 and bent lever and pawl g 9 in combination with the beam K, gear-plate L, hangers J G G, and the worms (1 (Z on the axles of the tender and car, substantially as and for the purpose shown and described.

12. In an automatic brake, the combination of the rod B, constructed in two parts, b b, swivel-jointed together and provided with the head 0, gear-wheel d and ratchet-wheel g", and the pressure-lever E, link e", and bent le- Ver and pawl g g ,with aworm, d, on the axle of a tender, A, substantially as shown and described.

13. In an automatic brake, the combination of the bearing H, spur-wheelj, chainj, bar 0, beam K, gear-plate L, hanger J, and bearing I, with a worm, d, on the axle of the car, the rod B, and gear-wheel Z, and the brake-levers R, connected by suitable rods and chains to the wings of said gear-plate, substantially as shown and described, for the purpose set forth.

14. In an automatic brake, the gear'plate L, constructed with a semicircular toothed head, wings at its rear, and a slot following the curve of its head, in which slot ranges a pin or stud, said gear-plate being pivotally connected to a beam suspended between the car-trucks and connected by its wings to chains and pull-rods which actuate double levers suitably connected to the brake-bars, substantially as described and shown.

' 15; In an automatic brake, the combina tion,with aworm formed on an axle of the car,

of the gear-plate L, having a semicircular toothed head, wings at its rear, a slot following the curve of said head, in which ranges a pin or stud, said gear-plate being pivotally connected to a beam suspended between the car-trucks and connected by its wings to chains and pull-rods attached to the brakelevers, substantially as described and shown.

16. In an automatic brake, the combination, with a locomotive-tender, A, having a worm, d, formed upon one of its axles, a, of the rod B, in two parts, I) I), having a swivel-joint connection, said rod being provided with ahead, 0, gear-wheel (Z and ratchet-wheel g and a pressure-lever, E, mounted on the tender, a link, e connecting said lever and rod, and a bent lever, g, carrying a pawl, 9 pivoted to said link, substantially as shown and described.

17. In an automatic brake, the combination, with a railway-car, F, having a worm, oZ, formed upon one of its axles, a, of the rod B, in two parts, b 12, having a swivel-joint connection, said rod. being provided at each extremity with a head, 0, and with a gear-wheel, Z, near the axle a, a spur-wheel, j, turning parallel with said gear-wheel Z and carrying a chain, j, and the beam K, carrying the gearplate L, connected by suitable rods and chains to the double levers R, which actuate the brake -bars, substantially as described and shown.

18. In an automatic brake, the combination of the rod B, in two parts, swivel-jointed together beneath a locomotive-tender and provided with the head 0, gear-wheel (P, and ratchet-wheel g, a worm, d, on one of the axles of the tender, a pressure-lever, E, mounted on the tender, a link, 6", journaled to said lever, a bent lever, g, pivoted to said link and carrying a pawl, g, with the rod B, in two parts, swivel-jointed together beneath a railway-car and provided with the heads 0, and gearwheel Z, the slotted bearing H, spur-wheelj, chain j, hangers G G J, beam K, and gearplate L, suitably connected to the brake-levers It, substantially as and for the purpose described and shown.

19. In a system of automatic brake mechanism, a horizontal brake-rod in two parts, swivel-jointed together, centrally located beneath the tender,and turning in bearings above its axles and beneath its trucks, provided with an interlocking head at its rear extremity, a ratchet-wheel near its forward extremity, and a gear-wheel above a worm on one of the axles of the tender, a pressure-lever pivoted to the floor of the tender and linked to said rod, a bent lever carrying a pawl,-pivoted to said link, and attached by a reacting spring to the arm of said lever, substantially as shown and described.

20. In a system ofautomatic brake mechanism, a horizontal brake-rod in two parts, swivel-jointed together, centrally located beheath the railway-car, and turning above its axles and beneath its trucks, provided with an interlocking head at each of its outer extremities, and with a gearwheel engaging with a spur-wheel turning on its axis parallel with said rod, a beam suspended between the cartrucks by a forked hanger hinged to one of said trucks and by a chain depending from the axis of the spur-wheel, said beam carrying a winged pivotal gear-plate, the wings of said plate being connected by rods and chains with the long arms of brake-levers suspended between the brake-bars, all constructed and arranged to operate substantially as shown and described.

21. An improvement in automatic brakes, consisting of horizontal rods, each in two parts, connected by a swivel-joint, one of said rods being beneath the tender and the other beneath the car, heads on said rods fitted to interlock together, a gear-wheel on the rod beneath the tender, adapted to be engaged with a worm formed on one of the axles of the tender by the action of a pressure-lever mounted on the tender, a lever depending from the tender, carrying a pawl which ranges a ratchet on said rod, a gear-wheel on the rod beneath the car, interlocked with a spur-wheel turning in a bearing beneath the car, a chain depending from said spur-wheel, a beam suspended between the trucks of the car by said chain and by aforked hanger hinged to one of said trucks, a gear-plate pivoted upon said beam and having its wings suitably connected to the long arms of brakelevers suspended between the brake-bars, said gear-plate being adapted to be geared with a worm formed on one of the axles of the car by the revolution of the combined brake-rod, substantially as set forth 22. The combination, with a worm on an axle of a locomotive-tender, of a rod extending beneath said tender, a worm-gear on said rod, and means, substantially as described, for bringing said worm and worm-gear into engagement, substantially as set forth.

23. The combination, with a worm mounted on an axle of a car, of a swinging beam, a segmental gear-plate pivoted on said beam,chains extending from wings on said plate to the brake-levers, and means for swinging said beam to bring said segmental gear-plate into engagement with said worm, substantially as set forth.

24. The combination, with aworm mounted on an axle of a car, a swinging bean], a gearplate pivoted on said beam and adapted to engage said worm, and connections from said plate to the brake-levers, of a revoluble rod and means, substantially as described, for swinging said beam by the revolution of said rod, substantially as set forth.

EDWARD BROOK WARREN.

Witnesses:

R. K. WATSON, JAMEs Rice,

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