USRE11636E - kinzer - Google Patents

Description

N hm T m mm w NF I0 KH I 5E H R gN0. 11,636. Reissued Nov. 9, 1897.

UNITED STATES PATENT OFFICE.-

JOHN- J. KI N ZER, JR, or PITTSBURG, PENNSYLVANIA, ASSIGNOR TO THE KINZER & JONES MANUFACTURING COMPANY, or SAME PLACE.

.BRAKE-SHIOE CONNECTION.

' SPECIFICATION forming part of' Reissued Letters Pat int No. 11 ,636, dated November 9, 1897.

Origins-1N0. 565,004, dated August 4,1896. Application for reissue filed July 6,1897. Serial N o. 64 3,684.,

To all whom it may concern.-

Be it known that I, J on J. Krnznn, J r., a citizen ofthe United State's,-residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented or discovered certain new and useful Improvements in Brake-Shoe:Connections, of which improvements the following is a specification.

The invention described hereirrirelates to certain improvements in means for attaching;

. brake-shoes to the brake-beam and in supporting the shoes andrbeam from the truck; and the invention has "for its object such a construction of these connections as'will permit of a yielding application of thes hoe to thewheel." 1 1 The invention is hereinafter more fully described and particularly claimed.

In the accompanying drawings, forming a part of this specification, Figure 1 is a perspective view of a portion of a car-truck having my improvement applied thereto. Fig.

2 is avertical section of the shoe and connection,the plane of section being indicated by the line II II, Figl3. Fig. 3 isa transverse section of the same, the plane of section being indicated by the line III III, Fig. 2.

While I have shown my improvement in connection with a 'composite shoe consisting of a shell 1 and a filling 2 of any suitable material, my invention is equally'applicable. to solid shoes. nected to a block, which is provided with means whereby. the brake-beam and hanger 35 may be connected thereto. In orderto prevent the locking of the wheels by a quick and severe application of the brakes, a spring is interposed between the shoe or shoe-car-' rier. and theublook, which in such-'ca'seis' inovably as well as detachably connected to. the shoe or carrier, as hereinafter more par-' ticularly described. 1

It is preferred to employ a leaf-spring between the block and shoe or carrier, as such form of spring will be less liable to injury in use, and hence my improvement is shown in connection with such a form of spring, al-

though it is not limited thereto.'

On the back of the shell or shoe are formed shoulders or transverse ribs 3, and between these ribs or shoulders I arrange a concavo- The shoe is detachably coni convex spring 4, somewhat shorter than the 'distance between the ribs, so as to permit of a flattening of the spring when pressure is applied thereto. The spring-is held in place by a block 5, arranged between ears or lugs 6. The block is held in position by means of a pin 7, passing through a hole in the block and slots-8 in the ears or lugs. The slots in the lugs are so located that the spring 3 rnust be slightly compressed in order to bring thehole in the block in line with the slots for the insertion of the connecting-pin 7, so that nor-v mally the pin is pressed against the outer ends of the slots by the spring, which in turn is so held bythe block thatits ends cannot be lifted over the ribs or shouldersfif.

The block. is preferably provided with holes, one for the reception of the hangerlink-9 and the other for the reception of the end of the brake-beam 10, although the link and beam maybe attached to the block'in any other suitable manner.

It will be readily understood by use skilledin the art thata shoe can be easily .and quickly removed and a new shoe inserted" to knockout the pin 7, thereby releasing the shoe. When the new shoe has been placed in position,,pressu-re applied to the block or into register with the slots in the ears or lugs, so as to permit of the insertionof the pins 7.

The spring being placed between the shoe and brake-beam insures'asteady and even application of the shoe. tothe wheel, as if a sudden and severe pressure is applied, as in "spring-wilFyield and prevent a locking of thewheels and so insure the most effective application of the brakes.

I claim herein as my inveritiohbrake-shoe carrier, at block movably connected to the shoe or carrier and provided and hanger and a spring interposed between the block and-shoe or carrier, substantially as set forth.

2. The combination of a brake-shoe or brake-shoe carrier provided with shoulders -without disturbing the'counections with the] truck and brake-beam, as it is only necessary brake-beam will bring theholes'in the block an'emergency application of the brakes, the

1. The combination of 'a brake-shoe or I i with means for attachment to the brake-beam IOO or ribs, a block movably and detachably conshoulders, whereby the shoe or shoe-carrier nected'to' the shoe or carrier--andprovided may be eonnected witha freedom of movewith means for connection to the brake-beam ment to the brake-beamor brake-beam conand hanger, and a spring interposed between nection substantially as set; forth. 5 the block and shoe or hanger and between In testimony whereof I have hereunto set 15 the ribs or shoulders on the shoe or carrier, my hand.

substantially asset mm. JOHN- J. KINZER, JR; 3. A' brake-shoe 0r brake-shoe carrier 111-01 Witni vided at its ends with bearing-shoulders and DARWIN S. WOLCOTT,

1b with slotted lugs intermediate of the bearing-- F. E. GAI-THER

Images