US854761A - Separable brake shoe and head. - Google Patents

Description

3 SHEETS-SHEET 3.

u .TAPPLIATION'FILBD MAR. 30, 1906.

WTNESSES E ATTORNEY.

CHRLES A. REMELlIS, UF NEW YORK, N

. Y., ASSIGNOR TO EDWARD H.

FALLOWS, TRUSTEE, OF NEW YGRK, N,y Y.

SEFELE BRAKE Sll AND HEAD.

Specification of Letters Patent,

Patented May 28, 1907.

Application filed March 30,1906. Serial No. 308,834.

Beit known that l, Cr-nirizns A. RnMnLrUs, a citizen of the United States, and a resident of New York, borough ol Manhattan, in the county o t' New Yori; and State of New York, have made and invented certain new and useful Improvements in Soparable Brake Shoes and Heads, of which the folloofnml is a spr-cilication.

My invention relates to an improved separable brake shoe and head, and more particularly that hind or style adapted for use upon the wheels of railway cars. As now generally constructed the head and shoe are combined or cast in one piece, the consequence being that when the shoe has been worn down by friction and incapable of further use, not only has the shoe to be discard.- ed, but also the head, cast integral therewith, resulting in a material loss, especially where large numbers of these devices are in use.

The use of a combined head and shoe has heretofore been rendered necessary by reason of the fact that there is but little room or space between the several parts to which the brake shoe and head are attached, (as for instance, the truck bolster, brake beam, etc.,) whereby to detach the shoe from. the head as l l i i l l l i i ordinarily constructed, in order to substitute l a new shoe. y

The object of my invention is to construct a separable head and shoe, the parts being' so formed that even though the space be limited, -the shoe may be easily and readily detached from the head, and this Witl'iout in any Way detaching the head .from the brake beam.

-A further object of my invention is to pro vide a shoe containing the usual amount ot wearing metal, and so f constructed that when worn down to such an extent as to be uniit for further use,'it may be detached Yfrom the head and another substituted therefor,

thereby utilizingr the old head, w ich has.;

heretofore been discarded with the worn out shoe.

1With these and other ends 1n vier y the inconstruetion and combination will be hereinafter' fully des ciiically pointed ont in the In the accompanying era vention consists in certain novi"I ns of a top plan view of a brake .head and shoe constructed in accordance with my invention. Fig. 2 is a view in side elevation thereof. F 3 is a sectional view taken on the line ISI-f5 of Figfl. Fig'. 4t is atop plan view of the shoe, the head beine,` detached therefrom.

F ig. 5 is a sectional view taken on the line -5--5 -oi Fig. Fig. is a sectional view taken on the line 6 6 of Fig'. e.' Fig. 7 is a perspective view of one of the wires bent to form part of the attaching lug'. Fig'. S is a top plan view showing' a modified form of attaching lug. F 9 is a sectional view taken on the line .Q -9 of Fig. S. l1`igzl l() is a detached view of a modified form of lug', illustrated in Finis. 8 and 9. Fig. l1 is a bottom plan view or the head. Fig. l2 is a view in side elevation thereof. Fig. 13 is a top plan View thereof.

Referring to the drawings, A represents the body of the shoe adapted to bear upon the tread of the wheel,` and `B the llang'e, adapted to contact with the flange of the wheel, said shoe being made of cast iron or of a combination of relatively hard and soft metals, whereby to increase the frictional and 'wearing qu alities.-

In order to render the slice as compact as possible, l form the attaching lug of wrought, ductile or other metal, tougher in character than the cast iron of which the body of the shoe is preferably formed, as for instance, of bent wires or ,rods C, one of which is illustrated in Fig. 7, these rods or wires beiner bent at about the middle of their length and extended upwardly into the loop c, the eX- treme ends e" or' each oi' the rods or wires, beine bent downwardly to anchor or embed the same in the body of the slice. Two of these bent rods or wires arepreferably used or einployed, as clearly illustrated in Figs. Li and 5, the loops being located at about the center of the length of the shoe forming the key-luy;

'tor attaching the brake head thereto.l

instead of' employing bent rod or rods or wires, to form the' attaching lug, l may, ii desired, use what lterni the strap lug as illus* f ated in Figs. 8, 9 and l0 this lug being also ned of wrought, due or other comparu y al, theends d of the lug belocking or anchoring res d1 embedded in the IOC) , metal forming thebody A of the shoe, and ex-` tpnding lengthwise thereof. This attaching lug or loop sits-comparatively close to the back of the shoe A, the top of the same lying lin substantially the same plane as the top of the flange B, in order` that the shoe be as compact as possible and properly fit the brake head hereinafterdescribed. To this shoe is attached the brake head comprising a plate E having formed on the under side thereof the lugs e straddling the key-lug of the shoe, these ,lugs e. being comparatively short, in order to allow the head to fit down closely upon the shoe, and provided with a key opening e1 therein for the passage of the attaching key F. The plate E has extending from the lowerend thereof the arms G, G1, the underside ofthe ends of which rest upon the back of the shoe, the extreme ends g abutting against the end stop g1 also formed on the back of the shoe and straddling the comparatively high gu'ide lug g2 thereon, the side of the inner of said arms G1 resting against the wall H of the flange B of'the shoe, this side or wall H being made straight in order to form a solid bearing or abutment for the straight impinging side of said arm G1.

The plate E is of sufficient Width to extend 'over thebody A and flange B of the shoe, in

order to provide 'a wide bearing therefor and prevent the same^from rocking on the shoe when in use, the elongated bearing surface being shown at l, Fig'. 11. From the upper side of the plate E also extend the arms K, K1, the inner one of which, K1, also bears against the straight wall H of the flange B, to assist in holding the head rigidly on the shoe, the extreme ends r abutting against the end stop g1 and straddliii'g the lug g4 formed on the back of the shoe. This plateE is also provided with the attaching plate L, whereby the head may be bolted or otherwise secured to the brake beam (not shown), said plate L being of corresponding shape to said beam, that in the present instance comprising the plates Z', Z2 and'base plate Z3, to accommodate a beam yrectangular in shape and extending across the entire width of said plate E to afford awide bearing therefor.

From the foregoing it will be understood that a separable head and shoe thus con structed, that is, a shoe having a comparatively low and tough key-lu with high guide lugs, and the flange forme with a straight wall, and the head. provided with a wide bearing plate'extending over the body and flange of the shoe With arms extending from both the upper and lower sides of said late, the' inner .arms bearing against the gat or straightywallpf the flange of the 'comparatively short keyshoe, and ha i g he` key-lug of the shoe, is

lugs to lit Iover.

very compact,strong and durable, and that -the shoe, containing the ordinary amount of wearing metal, may be easily and readily attached to and detached from the head without .-detaching the latter from the brake beam,

even though the space between the parts of the braking apparatus be very limited.

It will of course be understood, that the invention is not to be limited to the use of a plate L for attachment to the brake beam, as

it is evident that such may be altered in l shape or size to accommodate a lever or any. other part of the braking apparatus, the head being provided with a sleeve or 'cylindrical bearing M for the accommodation of a link or hanger, whereby to suspend the device, this sleeve or bearing extending entirely across the shoe and overlying both the body and flange thereof.

It will be further seen that the head is comparatively short, While the shoe is of the usual length, and that the arms G, G1 and K, K1 do not extend over the flange of the shoe, `as is usually the case, the consequence being that should the ends of the shoe bev first worn away, the head, nor any part thereof, will not be destroyed by coming in frictional contact with the wheel.

Having fully described my invention, what l claim as new and desire to secure by Letters comprising a body and flange, and provided with a key-lug of a brake head having a bear- A ing surface of sufficient width to extend over said body and flange, substantially as de? scribed. Y

2. The combination with a brake shoe comprising a body and flange provided with a key-lug, of a brake head cpmprising a plate' of sufficient width to exten over said body and flange of the shoe, and arms extending from said plate adapted to rest upon the body of said shoe, substantially as described.-

3. The combination with a brake shoe comprising a body and a flange, and provided with a key-lug, the wall of said flange adjacent to the body of the shoe being straight, of a brake head provided with arms adapted to IOO IIO

bear against said. wall, substantially as described.

4. The combinationY with a brake shoe comprising abody and flange and rovided with a comparatively low key-lug, o a brake head comprising a plate of sufficient width to extend over said body and flange of the shoe and having arms extending from the uppery vand lower ehds of said plate, .adapted to rest on the body of said shoe and against# the wall of said flange, substantially as described.

5. The combination with a' brake shoei comprising a body and flange, said body being'provided with a comparatively low key' lug'and high guide lugs, of a brake head comprisinvr a plate extending across said shoe and provided with arms extending from the up- New York, this 28th day of March, A. D. per and lower ends of said plate and stradi 1906. dling said guide lugs, the inner of said arms f CHARLES A. REMELIUS. 5 adapted to bear against the Wallof the shoe Witnesses:

Hange, substantially as described. M. VAN NORTWICK,

Signed at N eW York, borough of Manhat- N. B. SMITH.

tari, in the county of New York, and State of-

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