US1333320A - Brake mechanism for mining-cars - Google Patents

Description

F. KRASHOWET'Z.

BRAKE MECHANISM FOR MINING CARS.

APPLICATION FILED MAY I4. 19.!9-

Patented Mar. 9, 1920.

2 SHEETSSHEET 2.

' F. KRASHOWETZ,

BRAKE MECHANISM FOR MINING CARS.

APPLICATION FILED MAY 14. l9l 9.

Patented Mar. 9,1920.

2 SHEETS-SHEET I.

iUNITEDSTATES, PATENT GFFICE.

FRANK KRAs owErz, or EDD'YV-ILLE, IOWA.

Toall whom it may comer rt:

Be it known that I, FRANK Knesnownrz, subject of Austria, residing at Eddyville, Rt. #1, in the county of Monroe and State of Iowa, have invented certain new and useful Improvements in Brake Mechanism for Mining-Cars, of which the following is reference being had to the wise that the brake shoes of the brake barmay be applied to thewheels incident to the draw bars coeperating toward each other,

thereby preventing the car's whenin a train from crowding uponone another, particularly in going down an 111011116.

The invention further aims to provide a brake mechanism of this l'rindapplicable tominingcars of old style construction, in;

connection with which bumpers are emi ployed, the brake being actuated b th the train is operation of the bumpers, thereby preventing such cars from crowding one-anotherinv descending an incline. This style of brake mechanism will actuate on a particularly when a train of cars is being brought to a stop after traveling at azrapidj rate of speed,'in vlew of the fact that'when in the act of being brought to a stop, the draw bars will cooperate, in

other words abut each other, thereby applying'the brakes.

While the present illustrated and set forth is deemed preferable, it is obvious that as'a result of a the invention to a more practivention may be susceptible to changes, and

the right to'these changes is claimed, provided they are comprehended scope of what is claimed.

The invention comprises within the claimed.

In the drawings 'Figurel is a view'in-side elevation of the showing the improved new style mining car,

applied thereto,- and brake mechanism as also showing an upwardly tilting end: gate.

level grade,

' and engage the coupling provided for the purpose ofcoupling the ad acentcars. The draw bars are provided design and construction at further features 'and combination-departs, as will be hereinafter set forth, shown in the drawings and i 'rocking in the BRAKE MECHANISM son MINING-CARS.

g r spe c Letters en I Patented Mar. 9, 1920. Application filed May 14, 1919. Serial no. 297,054.

Fig. 2 is a bottom plan view of: the car, more particularly showing the various parts i of I the brake mechanism.

Fig. 3 isan enlarged-detail view of one pair of brake shoes and thebrake bar for actuating or urging the shoes toward the peripheries of the wheels.

Fig. 4 is a view in side elevation of an old style mining car, showing aslightly form of the brake mechanism as applied.

Fig, 5 1s a bottom plan view of Fig- 4. Fig. 6 is a detail sectional view, showing one of the racks {0 and its teeth 41.

@ Fig. 7 'isa detail view of the connections between one of the bell crank levers '35 and the brake shoe=actuatmg bar,which is car-.-

to the bottom offthe calradjacent the ends thereof are the guides 4: for the draw bars 5.- The guide v members are recessed, as shown at 6 for the receptiono'f the draw bars. The draw bars are provided with the usual coupling heads 7, pr'ovided with coupling pins 8, which are designed to pass through the openings of the coupling heads links 9, which are withslo-ts 10. it r Secured to the bottom of the car is an elongated metallic strap .11 having eyes 12 at its opposite ends. Chains 13 are (2on nected to the eyes '12, and in turn connected to the eyes 14: of the inner ends ofthe draw bars, thereby loosely anchoring the draw bars in position.

The axles 2 are mounted inljournalboxes "15 of the plates 16, which aresec'uredin any suitable manner to car. --Cap plates 17 are bolted to the plates '16, and constitute bearings for the brake shoe actuating bar-18,Jwhichis capable of brake shoe" actuating bar 18" is provided with-shoulders 19, to prevent ax'ialfmova. ment of the bar, the opposite endsof which are supplied with when'the actuatlng bar oc i i s the. bottom of the.

bearing cap plates 17 This.

enlargements 20, which,

ingsfcoeperate between the brake I opposite ends order to spread them and cause them to contact with the peripheries of i the car wheels. A downwardly extending arm 21 is carried by the brake shoe actuating bar 1 upwardly extending arm 31 of the rocking of, the car opposite ends thereof.

brake shoe actuating bar. The inner ends of both glevers 26 extend loosely into the slots 10 of the draw bars. To the outer end of the other lever 26 a rod 71 is connected. This rod is in turn connected at 72 to the upper end of a lever 7 3, which is pivoted to the side of thecar. The lower end of the lever 73 has connected thereto a rod 7 4, which in turn is connected actuating bar. It is to be noted that when pressure is applied to the drawbars incident to the cars crowding toward each other, the levers 26 will be tilted'on their pivots, thereby pulling upon the chain 27 and the rod 28 and the lever 73 which pulls the rod7 1, at the same time the rod 28 is pulled, thereby rock- 18, and owing to the enlargements 20 becoming positioned horizontally between the brake shoes, the brake shoes are urged toward and into cooperation;

with the peripheries of the car wheels.

The lever 32 is pivoted at'33 to one side near one end. \i The lower end of the lever 82 has connected thereto a chain 34:, which in turn is connected to the rod 28.

: Bell crank levers 35 are pivoted at 36 to the opposite sides of the car near the diagonal To one ofsaid bell crank levers 3 5 a rod 37 is connected, and

which in turn is connected to the lever 32. The other bell crank lever 35 is linked or connected as shown at 75 to the lever ,73. It is obvious that by tilting either one. or both of the bell crank levers by foot pressure in'the direction of the arrow a, as indicated in F 1, the levers 32' and 73 may be tilted upon their pivots imparting a pulling action upon 6 0 the rods 28'and 74, so as to'rock the brake shoe actuating bar 18. Of rocked, its enlarge course, when this-bar is ments will become positioned horizontally between the brake shoes and spread them 7 f sulficiently to urge them toward the periphcries of the car wheels. Suitable racks 40 shoes, in

The other end of the- By means of this to a second upwardly extending arm 31 OffllllB rocking brake shoe.

of-the opposite portions upon the rod 71. The rod 71 tilts J the car.

are secured to the opposite sides of the car in diagonal opposite relation to each other, and these racks are provided with teeth 41, with which the long arms of the bell crank levers may cooperate, to hold the bell crank normal position, and since the arms 31 are connected to the rods 28 which in turn are connected to the levers 26, the rocking bar 18 is limited in its normal position.

The brake shoes 43 are pivotally mounted on the sides of the car upon pins 44. The brake shoes, each consist of an elongated metallic strip loop 45, for p The opposite portions of the strip are brought together and bolted as at 47. The lower parts of the opposite portions of the strip extend downwardly, and are bent at 48,

the bent portions extending toward each the reception of the pin 4%.

other, and again bent at 49 and 50. Beyond vthe bends 50 the opposite portions of the strip extend from each other, and are bent at 51. The portions 53, of the strip beyond the bends 51 are curved concentrically with the peripheries of the car wheels, and owing to the extremities of these parts 53 being free and unattached, the parts 53 are yieldable. It Listo be noted that the lower parts of the strip, and including the parts 53 constitute the brake shoes. When the enlargements of the actu-V ating bar 18- become positioned horizon-i tally causing the brake shoes to spread, theirparts 53 are urged-yieldably in contact with the peripheries of the car wheels, thereby offering suflicient friction thereon, to brake the car wheels, hence preventing the cars from crowding each other, either on a levelor down-grade. It'is-obvious that when the cars arebeing pulled upgrade, the draw bars operate to actuate the levers 26, which in turn, restores the actuating bar 18 to its normal position, the spring 22'assisting in this regard, hence allowing the brake shoes to release their frictional contact with the peripheries of the car wheels. If desired, thebrakes of the cars can be applied manually, by operating the bell crank levers.

. A bail member 7 54 has its opposite arms 55 pivoted at 56 bent upon itself to form the V tothe opposite sides of J A second bail member-57 has its arms integrally'connected to the arms of the bail member '54, so that they extend angularly relatively to the arms 55. Atail end gate '58 is fixed or connected at' 59 to 'the bail-members, and by means of the bail members, the tail'fend gate of the car body is held in position "at one end of the car. Obviously the bail members may be tilted is dispensed with, and in lieu thereof .of-actuating bars ing the brake shoes, whereby upwardl so that the tail gate maybe raised, a lowing the contents of the car to'be dumped or shoveled o Referring to IFigsA and 5, that a modified form of brake mechanism is applied'to an old style miners car." This brake mechanism is considerably similar to the mechanism shown in Figs. 1 and 2, with bar 18 a pair 60 is employed. These rocking bars 60 are-axially alined, and have their outer ends provided with enlargements 62, similar tothose shown in Figs. 1 and 2. The inner ends of the rocking bars 60 are supplied with downwardly extending arms 63, to which the rods 64 and 65 are connected. Therods 6d are in turn pivotally connected to the levers 66 which are pivot ally mounted at 67 to the bottom of the car. Suitable bumper members 68 are mounted in bearings of the opposite ends of the car, that is in diagonal relation to each other. The rods 69.0f these bumper members are connected pivotally to thelevers 66; The rods 65 at their outer ends terminate in bumper members 70, which are mounted in the exception that a'single actuating bearings of the oppositeends. ofthe car,

It may be observed that the bumper members, bumper members contacting with a similar set on an adjacent car, will impart rocking motions to the rocking bars 60, and owing to their enlargement-s being positioned between the brake shoes, the shoes will be urged in yieldable contact with the peripheries of the car wheels. The mechanism in Figs. 4 and 5 may also be actuated manually, by means of bell crank levers and connections similar to those previously described, hence it is believed unnecessary to repeat the designations and the operation of such parts.

The invention having'been set forth, what is claimed as new and useful is: v

1. In a brake mechanism, the combination with a pair of adjacent Scar wheels, of a brake member having with yieldable parts, and means for spreadthe yieldable parts may be urged yieldably in frictional contact with the peripheries of the car wheels, and means actuated by the crowding action of adjacent cars to actuate the first means for applying the brake shoes,

by the actuation of said last mentioned means comprising a transversely disposed rocking bar, tensionmeans therefor, levers having connections with the rocking bar, and draw bars adapted to be actuated by the jamming action of the draw bars with adjacent draw bars and connected to the levers for OSCll, lating them. I

2. In a brake mechanism, the combination with a pair of adjacent car wheels, of a brake member having brake shoes provided it to-bejnoted that is one set of,

brake shoes provided ,with yieldable parts, and means for spreading the-brake shoes, whereby the yieldable parts may beurged yieldably in frictional contact with the peripheries of the car wheels, and means manually actuated for operatingothe first means, said last men-- tioned means comprising a rocking bar having enlargements positioned between the brake shoes for spreadingthem, tensioning means for the, rocking bar, levers pivoted on the sides of the car having connections withthe rocking bar, and manually oper 'ated bell crank levers connected to the first having an enlargement, positioned between the depending separable parts for spreading them, whereby the brake 'shoesmay be applied frictionallyon the adjacent peripheries of the car wheels.

4. In a brake mechanism, the combination with .a pair of adjacent car wheels, of a brake member provided with depending yieldable parts adapted to be forced apart,

the lower ends of the yieldable parts terminating in yieldable brake shoes, said brake member being pivoted to the side of the car body, whereby the depending parts are positioned between the peripheries of the car wheels, with the shoes adjacent to and adapt- I ed to be applied to the peripheries of the car Wheels, when said parts are separated, said brake member being constructed from a single piece of metal, bent to form the op posing depending yieldable parts andthe brake sh oes.

5. In a brake mechanism, the' combination with a pair of adjacentcar wheels, of a brake member provided with depending yieldable parts adaptedto be forced apart, the lower ends of the yieldable parts terminating in yieldable brake shoes, said brake member being pivoted to the side of the car body, whereby the depending'parts are p0sitioned between the peripheries of the car wheels, with the shoeso adj acent to and adapt- :ed to be vapplied to the peripheries of the car wheels, when said parts are separated,

said brake member being constructed from a single piece'of metal, bent to form the opposing depending yieldable parts and the brake shoes, and means acting between the brake shoes'toseparate the depending parts, whereby the shoes maybe applied to thewheels. 7

V with a 6. In a brake mechanism, the combination with a pair ofadjacent car wheels, of a brake member constructed from a single strip of spring metal, bent upon itself midway its ends, thereby forming a pivoting eye, means extending through the eye to pivot the member to the means to secure the opposing bent portions of the sheet metal to each other at a point beyond the pivoting eye, the portions of the metal beyond the securing'means diverging downwardly a short distance, then in wardly at acute angles, then directly clownwardly and in parallelism, thereby constituting opposing depending and yieldable parts adapted to be forced apart, the downward parallel portions of the: depending parts terminating in yieldable brake shoes concentric with the car wheels, whereby upon separating the de pending parts, yieldable brake shoes may be applied yieldably and frictionally in contact with the peripheries of the car wheels, and means forforcing apart the depending parts to apply the brake shoes.

7 In a brake meehanism,the combination pair of adjacent car wheels, of a brake member having depending brake shoes adaptedto be forced apart, means for side of the car,

a the rocking suspending the member from the side of the car, whereby the shoe is positioned between 111g bar having enlargements at either end positioned between the brake shoes, whereby upon rocking the bar, the shoes may be applied frietionally in contact with the peripheries of the car wheels, means for-'tensioning of the enlargements normally engaging between the shoes, levers pivoted upon the bottom oi? the car body at diagonal opposite portions thereof, one end of each of said levers having a rod connection with the brake shoe actuating bar, draw bars connected to said levers, and adapted to be ac tuated by the crowding action of the draw bars and being connected to said levers for actuating them, and means cooperatively connected with said connections, and adapted to be manually manipulated, for apply ing the brake shoes on the peripheries of the car wheels.

In testimony whereof I- hereunto aflix my signature in the presence of two witnesses. V

FRANK KRASHOWETZ- Witnesses i V G. H. EINERs, GEO. ALEXANDER.

bar to hold the narrow portions 7

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