US1311072A - Rail-brake - Google Patents

Description

LJENDRAL.

RAIL BRAKE.

APPLlcATloN FILED FEB.28.1919.

' Patentednly 22, 1919.

@nyu/1,4206

uNiTED srATEs PATENT oEEINoE.

:rAcoB JENDEA'L, or BARNEsEoEo, PENNSYLVANIA.

RAIL-BRAKE.

To all whom it may concern.' i

Be it known that I, JACOB JENDRAL, a citi-V zen of the United States,hresiding at Barnesboro, in the county of Cambria and State of Pennsylvania, have invented new and use-V ful Improvements in Rail-Brakes, of which y fully understood. from the following de-` scription and claims, when the same are:

read in connection with the drawings, accompanying and forming part of this speciication, in which:

Figure is a plan view showing my brake as properly arranged relative to a mine car and a track rail.

Fig. 2 is a transverse section taken in the plane indicated by the line 2-2 of Fig. 1, looking in the direction of the arrow.

Fig. 3 is an enlarged vertical section taken in the plane indicated by the line 3-3 of Fig. l and showing the eccentric mounting of the rail-engaging wheel.

Fig. 4; is a detail horizontal section, taken in the plane indicated by the line l--t of Fio. 2.

imilar numerals of reference designate corresponding parts in all of the views of the drawings.4

At 1 is the rear portion of a mine car, and at 2 is the track rail in conjunction with which my novel brake is adapted to operate.

' In furtherance of my invention I provide a beam 3. This beam 3 is provided at one end witharetractile tension device 4 for the connection of a chain or other cable 5 through which the beam is connected with the car body, preferably at the side thereof. A portion of the beam 3 is in the form of an. open fra-me 6, and in said frame is pivotally mounted a horizontal shoe 7, disposed in opposition' to the outer side of the rail 2. Pivotally mounted in the frame 6 of the beam and disposed at the opposite side of the rail, with reference to the shoe 7, is a complementary shoe 8 that is adjustable as presently pointed out. Arranged in the Specification of Letters Patent.

Application yled February 28, 1919. Serial No.

Patented July 22, 1919.

shoe`8` is a horizontal rail-engaging' wheel 9, which is designed to extend through an elongated opening 10 in the inner side of the shoe.

Journaled in the shoe 8 and in the frame 6 is a verticalshaft 11, having a cranklQ at its upper end. The said shaft 11 is provided with an eccentric portion 13, which occupies acentral aperture in the wheel 9. Carried in bearings 14 on shaft 11 is a verti! cal detent 15, having a crank 16 at its upper end, and normally pressed downwardly by a spring 16a. The said detent l5 is designed to coperate with apertures 17 in the upper wall of the frame 6 with a View to adjustably positioning the wheel 9` relative to the shoe 8 in which the' same is arranged.

` When my novel brake is to be used in conjunction with a mine car or similar car, I prefer to employ a platform 18, which is super-imposed upon and fixed to the upper wall of the frame 6, so as to afford a convenient stand for the operator, who will have for his duty to control the shaft 11 and the detent 15.

In the practical use of my novel brake mechanism, applied as shown and described, it will be manifest -that when the shaft 11 is turned about its axis to disengage the detent 15 from the frame 6, the wheel 9 will operate after the manner of an eccentric cam, with the result that the two shoes 7 and 8 will securelygrip the rail head and effectually brake the car. It will also be apparent that when deemed expedient the operator on the platform 18 may turn the shaft 11 and thereby thrust the wheel 9 against the rail head with a view to increasing the power of the braking action. When the detent 15 is disposed in the foremost aperture 17 the wheel 9 will be adjustably positioned relative to the shoe 8, so as to lesse-n the gripping action of the shoes against the rail head, and it will be noticed that as the detent is arranged in the apertures toward the rear end of the series the gripping action of the shoes will be still further diminished, until when the detent is in the rearmost aperture of the series the shoes 7 and 8 will slip along the rail head without taking hold thereof.

Inasmuch as my novel brake is designed to be employed in the nature of an anchor for mining cars, the connection of the cable 5 to the car may, when desired, be a detachable `connection7 so that the brake mechanism may be employed in connection with a number of cars in succession.

Vhile designed primarily 'itor use in con# nection with a mine car and one of the flat rails thereof, 'I would have it understood that the 'brake may be employed to advantage in connectioii with an elevatorca-r and one of its guide rails or in connection with a car and rail of any other description.

I prefer to employ the specific `construction and relative arrangement of parts as herein shown and described, but I do not desire to be understood as confining' myself to the same, inasmuch as in `the l'uture prac tice of the invention various changes in the form and relative arrangement of the elements may bemade without involving.;` de-` parture from the scope of my invention yas defined in my 4appended claims.y

Having described my invention, what I claim and desire to secure by Letters Patent, is:

l. A railbrajke comprising` a beamya shoe car'ried by the beam land adapted to `be o-pposed `to one side of a rail, a shoe carried by the beam and adapted to be positioned at the opposite side of a rail, a shaft journaled in the *beam and Krthe*last`na-1ned shoe and having an eccentric portion disposed in said shoe, and a Wheel disposed in said shoe and receiving said eccentriciportion of the shaft and adapted to engage the adj acen't side of the rail.

2. A rail brake comprising a beam 4having an open frame portionprovided in `its upper Wall Witha series of apertures, 4a shoe :pivoted in said frame lpo-rtionand adapted to be opposed to y one side of arail, a lshoe positioned in the fra-me portion and adapted to L rest at the opposite side of -a rail, and 'having a horizontalslotf, awheeldisposed in said slot, a shaft ,journaled in the frame and the shoe and having an eccentric, portion arranged in the Wheel and also hai/ing a crank, and a detent car ied by the sha-ft and ladapted to seat in the apertures in therame.

In 4testimony whereof I uhave"atlixed my signature. Y, l

JACOB JENDRAL.

Copies df this patent may be obtained forpvve Acents each, py 'addressingl the Commissioner Vof` Patents,

Washington, D. Clf l

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