US1526859A - Brake mechanism - Google Patents

Description

Feb. 7, 1925. 1,526,859

v A. F. KLASING B'RAKE MECHANISM Filed Feb. 10, 1922 2 Shaw-Sheet l Feb. 7, 1925- 1,526,859

A. F. KLASING BRAKE MECHANISM 2 Sheets-Sheet 2 Filed Feb. 10, 192.2

, g 'if U Patented P55 17, 19 2 5.

UNITED STATES PATENT, OFFICE."

AUGUSTUS E KLASING, Q1! CHICAGO, ILLINOIS, ASSIGNOB TO THE KLASING CAB BRAKE COMPANY, A CORPORATION OF COLORADO.

BRAKE MECHANISM.

Application fled February 1c, 1922. Serial No. 535,457.

To all whom z'tmay concern.

Be it known that I, AUeUs'rUs F. Kmsnve, a citizen of the United States, residing at Chlcago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Brake Mechanism, of which the following is a specification.

V M invention relates to apparatus for the manipulation of brakes of a railway car, the invention being concerned particularly with the type of brake mechanism comprising a power applying device so placed on the wall, the end wall, preferably, of a box car, or in equivalent locations on tank, gondola or flat cars, that the same may be operated with convenience and safety by the trainman, together with a transmitting device for changing the substantially vertical pull exerted by the power applying device to a substantially horizontal pull on the brake. rigging underneath the car body.

The principal object of the invention is to provide a new and improved brake manipulating apparatus of this general character which will be inexpensive to manufacture and install, can be applied readily to cars of different size and type, will consist of comparatively few parts of simple and strong construction, and will be capable offirst rapidly taking up the slack in the brake connections and then applying the brake shoes with great braking force against the car wheels. f

The invention consists of the new and 85 improved arrangements, devices and constructions, to be hereinafter described and claimed, for carrying out the above stated objects and such other incidental objects as will be referred to in the following description of the preferred embodiment of the invention shown in the annexed drawings.

Referring to the drawings, Fig.1 is a fragmentary side elevation of one end of a railway box car with the brake manipulating apparatus of my invention installed thereon.

-2 is a view, in perspective, of the windingdrum and its operating lever forming part of the apparatus.

Fig. 3 is a longitudinal sectional view of the winding drum and mociated parts.

4 is a a pair fragmentary end elevation of apart of the ower a l in raged on the car wall. Pp y g Fig. 5 is a fragmentary sectional view taken on line 5-5 of Fig. 4.

Fig. 6 is a longitudinal sectional'view device arthrough the part of the apparatus under the car which has been designated the transmission device, and

-Fig. 7 is a sectional view on line 7-7 of Fig. 6.

Referring to the drawing, A designates the superstructure of a railway box car on the end wall of which the part of the apparatus which has been designated the power a plying device is preferably arran ed. T e power aplplying device is designate as a whole by t e letter B. The transmission device, located on the under side of the car, is designated as a whole b the letter C. D is a platform on the en of the car on which the brakeman stands when setting and releasing the brakes. The transmission device 0 comprises an inverted channel-shaped structure 10 formed with flan cs 11 for attachment, by bolts 12, to the door or underframe of the car. The side members 13 of the channel member 10 are formed with recesses 14 closed to rovide grooves by longi' tudinally arranged members 15 secured to the member 10 by bolts 16. 17 is a drum havin gudgeons 18 which enter the grooves 14. he channel member 10 is formed with of spaced racks 19 and the drum 17 1s provided with gear wheels 20, preferably formed integrally with the drum, adapted to mesh with racks 19. Secured to the drum adjacent the gear wheels 20, for example by tap screws 21, are apair of take-up chains 22 which are connected with the brake rigging (not shown) on the under side of the car. mon t e. The chains 22 converge and are attache 'to the chain or pull rod usuall em loyed for operating the brakes of av rai we car; the arrangement ofchains 22 being substantially the same as the arrange- The brake rigging may be of any com- I ments of the lower chains shown. in Fig. 4

of the drawings. The chains 22 are adapted to be wound u on winding surfaces 23 on the drum 17. he drum is formed with a centrall arranged pulley preferably of larger iameter than the dlameter of the 'wall of the car. with a pair' of gear wheels 38 adapted to r I winding surfaces 23. This 1pulley is engaged by a pull chain in suc manner that with an outward pull upon the chain 25 the pulley is caused to roll outwardly on the racks 19. Preferably the chem 25 13 anchored to the forward end of member 10, as indicated at 26, and extends around ulley 24 and then over a sheave 27 journal ed 1n a fork 28 at the forward end of member 10, the chainextending upwardly to the power a plying device B. In order to keep the cliain in place when the brakes are released, an idler roller29 is journaled in the fork 28 in advance of the sheave 27.

To the upper end of chain 25 are secured b means of a link or ring 30, a pair of short 0 ains 31 anchored by screws 32 to the winding surfaces 33 formed on a drum 34 hav ng gudgeons 35 extending into vertical guide slots 36 in a housin 37 secured to the end T e drum 34 is formed mesh w1th racks 39 formed in the housing 37. The drum 34 is provided with a centrally arranged pulley 40, preferably of larger diameter than the winding surfaces 33 of the drum, and a chain 41 anchored to the housing 37 at .42 extends around pulley' and upwardly to a, preferably spirally grooved winding drum 42 journaled m a bracket 43 on the upper end of the housing 37. Loosely mounted on the shaft 44 on which the winding drum 42 turns, is an operating lever 45 having pivoted thereto tail piece 49 of the March 5, 1918.

chain to describe at 46 a pawl 47 adapted to engage the teeth of a ratchet wheel 48 formed on the drum 42. The tail piece 49 of the pawl is heavy enough to maintain an engagement between the pawl and ratchet teeth 48. When the lever is hanging in a vertical position the pawl engages an inturned lug 50 on a downwardly projecting web 51 formed on'bracket 43 so as to effect the disengagement of the pawl from the ratchet wheel. The other end of the winding drum is formed with detent teeth 52 adapted to be engaged by a detent 53 pivoted at 54 toa lug 55 on bracket 43. In place of the detent 53 I contemplate the use of a detent of the character shown in m co-' pending application Serial No. 220,467 filed description and in the ereto I use the word the flexible connecting elements 22, 25, 31 and 41, but it will be understood that ropes or cables might be employed in place 0 the chains, though perhaps to less advantage. By the word chain I intend any suitable flexible connection. Inasmuch as the apparatus as shown and described might be changed in respect to other details wish it to be understood that the invention is not to be considered as "limited to the In the foregoin claims appen ed of construction, I,

exactarrangements, constructions and devices shown and described except so far as the claims hereto appended are expressly so limited.

Operation: To set the brakes the trainman, standing on platform D, swings, lever 45 toward him in an upward direction. This rotates drum 42, Winding chain 41 thereon and thereby causing drum 34 to roll upwardly on racks 39. The rotation and upward movement of drum 34 causes a pull on chains 31, which wind upon the surfaces 33 of the drum and an upward pull is thereupon given to chain 25. This causes drum 1 to roll, outwardly, on the horizontally disposed racks 19 winding chains 22 around surfaces 23 of the drum 17 so as 'to first take up the slack in the brake connections and then force the brake shoes against the wheels of the car. The taking up of the slack may necessitate several oscillations of lever 45. During these oscillations the winding drum is held by detent 53. The rapidity of the take up in the brake connections is increased by the fact that drums 17 and 34 have rolling movements, that is to say, besides rotating they move bodily in the direction to increase the pull on the chains which wind upon them, respectively. The power which may be developed in the actual setting of the brake shoes against the wheels is increased by the fact that pulleys 24 and 40 are of larger diameter than the winding surfaces 23 and 33, respectively, and by the further circumstance that the chains 25 and 41 are anchored at their extremities to the car and not to the pulleys. The power is multiplied both by the apparatus on the end of the car and by the apparatus underneath the car. These arrangements are preferred, if not absolutely essential. To release the brakes the lever 45 is raised so as to relieve detent 53 of pressure, whereupon the detent is turned manually about its pivot into position to rest on the bracket 43. The lever 45 is then again swung downwardly to bring the tail piece 49 into engagement with the lug 50 for releasing the pawl 47 from the ratchet wheel 48.

I claim:

1. In combination with the brake ri ging apparatus for setting the brakes comprising a drum on which said take-up chain is adapted to wind, and a chain anchored at one end to the car and extending around said drum at a place of larger diameter than the place. on which the take-up chain winds for causing the drum to roll in the direction to wind the take-up chain thereon.

2. In combination with the brake rigging of a railway car, comprising a take-up chain, apparatus for setting the brakes comprising a drum on which said take-up chain is adapted to wind, a chain anchored at one drum at a place of lar r diameter than the place. on which the ta e-up chain winds, a gear wheel on said drum, and a rack with which said ear wheel'meshes.

' In comdiination with the brake ri ging of a railway car, comprising a take-up 0 rain, apparatus for setting the brakes comprising a. drum on which said take-up chain is adapted to wind, and a chain anchored at one end to the car and extending around said drum for causing the drum to roll in the direction to wind the take-up chain thereon. V

l. '1 he combination with thebrake rigging of a railway car comprising a take-up chain, apparatus for setting the brakes comprising a drum under the car on which said take-up chain is adapted to wind, a gear wheel on said drum, a rack engaged b' the a chain anchored at one en to t e car and extending around said drum, to impart rolling movement thereto on the rack, a sheavenear the end of the car over which said last named chain passes, and a roller arranged beyond the sheave for retaining the chain in operative position thereon.

engaging said racks, a pair of winding surfaces of relatively small diameter, and a central pulley of larger diameter, a pair of take-up chains connected with the brake rigging and anchored to and adapted to wind upon said winding surfaces, and a chain engaging said central pulley to roll the drum on said racks.

6. In apparatus for manipulating the brakesof a railway car, the combinatlon of I a supporting structure of channel shape on the under side of the car formed with spaced racks, a drum provided with gear-wheels engaging said racks, a pair of winding surfaces of relatively small dlameter, a central pulley of larger diameter, a pair of take-up chains connected with the brake rigging and anchored to and adapted to wind upon said winding surfaces, and a chain anchored at one end to the car and extending around said central pulley to roll said drum on said racks.

7. In apparatus for manipulatin the brakes of a railway car, the combination of a su ortin structure of channel sha e on the under side of the car formed with s aced racks, a drum provlded with ear whee engaging said racks, a pair 0 winding sur-" faces of relatively small diameter, a central pulley of larger diameter, a pair of take-up chains connected with the brake rigging and anchored to and adapted to wind u 'T'n said winding surfaces, a chain anchore at onear wheel,-

racks, a sheave near the end of the car over which said last named chain extends, and a retaining roller arranged beyond said sheave.

8. In apparatus for the manipulation of the brakes of a railway car, the combination of a channel-shaped structure on the under side of the car, the sides of which are formed with slots, spaced racks in said structure, a drum provided with gudgeons to extend into said slots, gear wheels to engage said racks, a pair of surfaces of relatively small diameter and a central pulley of larger diameter, a pair of take-up chains connected with the brake rigging, and anchored to and adapted to wind upon said pair of winding surfaces, and a chain engaging said central pulley to roll the drum on said racks. I a

9. In combination with the brake of a railway car, apparatus for se the brakes comprising a drum adapted to vs a rolling movement in a substantially vertiimpart an upward rolling movement to the same.

'10; In combination with: the brake rig ging of a ra1lway car, apparatus for setting the brakes COIIlPl'lSlllg a drum adapted-tor have a rolling movement in a substantially vertical direction, means'providing a con-. motion from said drum to said brake ri gin including a chain adapted to wind on sai drum, and a chain said drum at a place of larger diameter than the place on which the said first'named chain winds to impart an upward rolling movement to the drum, said chain being anchored at one end to the car.

11. In apparatus for manipulating the brakes of a railway car, the combination of a vertically disposed housing on the car provided with slots in opposite sides, spaced racks in said housing, a drum formed with gudgeons to extend into said slots, gear wheels meshed with said racks, winding surfaces of relatively small diameter, a. centrally arranged pulley of larger diameter, a pair of chains anchored to and adapted to ind upon said winding surfaces, and a chain anchored at one end and extending 1 around said pulley for causing the drum to roll upwardly on said racks.

12. In apparatus for manipulating the brakes of a railway car, the combination of iao Wheels meshed with said racks, winding surfaces of relatively small diameter, a'centrally arranged pulley of larger diameter, a pair of chains anchored to and adapted to wind upon said windin surfaces, a chain anchored at one end an extending around said pulley for causing the drum to roll up ward y on said racks, a winding drum for said last named chain provided with a de tent, a ratchet wheel, and a lever having a pawl to engage said ratchet wheel.

13. In apparatus for. the manipulation of the brakes of a railway car, the combina tion of a chain formin a part of the brake rigging of the car, a drum on which said 1 chain winds, a chain to impart a rolling movement to said drum, a second drum on the car wall on which said second named chain winds, and a chain to impart a rolling movement to said second named drum.

14. In apparatus for the manipulation of the brakes of a railway car, the combination of'a chain formin a part of the brake rigging of the car, a rum on which said chain winds a chain to impart a rolling movement to'said drum, a second drum on the car wall on which said second named chain winds, a

chain to impart a rolling movement to said second named drum, and a winding drum for said last named chain.

AUGUSTUS F. KLASI NG.

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