US606105A

US606105A - Draw-bar for railway-cars

Info

Publication number: US606105A
Authority: US
Publication date: 1898-06-21
Anticipated expiration: 1915-06-21

Description

' 2 Sheets-Sheet l.

(No Model.)

W T lVAN BORN DRAW BAR PoR RAILWAY CARS.

No. 606,105. PatentedJune 21,1898.-

Emwkn 4/ Www/0%@ 2 Sheets-Sheet 2.

(No Model.)

W T VAN` BORN DRAW BAR FOR RAILWAYl CARS.

NoP 606,105. Patented-June 21,1898.

UNT-Tan STATES PATENT @Trient IVILLIAM T. VAN DORN, OF CHICAGO, ILLINOIS.

DRAW-BAR FOR RAILWAY-CARS.

SPECIFICATION forming part of Letters 4:PatentANO. 606,105, dated J une 21, 1898.

s Application filed J'anuaryll, 1898. Serial No. 666,705. (No model To all whom t may concern:

Be it known that I, WILLIAM T. VAN Donn, a citizen of the United States of America, residing in the city of Chicago, in the county of Cook, in the State otlllinois, have invented certain new and useful Improvements vin Draw-Bars for Railway-Cars, of which the following is a specification. v v c My invention has relation to improvements in draw-bars for railway-cars and the obj ect is to provide an improveddraft appliance of.

the kind named and for the purpose intended which is simple in construction, strong'and durable in use, and readily'and conveniently applied to the car. f rlhe inventionconsists in the novel con; struction and combination of parts, as will be hereinafter descrihed,'and particularly as will be pointed out inthe'claims.

I have fully and clearly illustrated .the in-l vention in the accompanying drawings, where- Ill- Figure l is a perspective View of the draw-` bar held in a cylindrical buffer-sleeve having a fastening bracket or casting rigid therewith. Fig. 2 is a central vertical longitudinal section through the respective elements or parts. Fig. 3 is a vertical transverse section on the line 3 3 of Fig. l. Fig; fi is a cross-section through the stem of the draw-bar, showing an interior wrought iron or steel central portion fitted therein. Fig. 5 is a perspective view of the draw-,bar held in a buffer-sleeve secured to a bracket and turning therein on a pivotal support. Fig. G is a central vertical longitudinal section on the line oc c of Fig. 7. Fig. 7 is a vertical transverse section on the line y y of Fig. v6.

A designates a strong buffer-sleeve, made of malleable or steel casting, and, as indicated in Figs. l, 2, and 3 of the drawings, has cast integral therewith a bracket or casting B,having a i'lat and plane upper face l adapted to iit against and be secured to a carrying-bar 14, as shown-'inFig 2. The buffer-sleeve- A is formed with interior annular flanges 3 3X, having their inner edges shaped to form angular openings ,4 4X, adapted to receive and hold the stem of the draw-bar, which is slidingly fit-ted therein. The interior of the buffer-sleeve A between the annular iianges is larger than the stem of the draw-bar, which moves therethrough free Afrom contact with the surface of the interior, and the openings 4; 1i?? are made larger vertically than the vertical thickness of the draw-bar, so that the draw-bar may have a limited vertical play or movement in its seat through the buffersleeve without disturbing the sleeve or tending to lift the carrying-bar which carries it.

- Thebracket I3 is made of cast or malleable steel and is cast'hollow,with its ends extended in opposite directions beyond the ends of the buffer-sleeve A, substantially as shown,which extensions are braced by central tapering ilanges 5. v

C designates thev draw-bar, made of malleable or steel casting, of such length and dimensions as to adapt it to the usages and work to which it may be intended. The drawhea-d 6 is cast continuously and integral with the stem, and att-he proper point on the stem of the draw-bar is formed an annular collar 7 to serve as a stop or stay for the front or buffer spring to abut against, and adjacent to the end or `tail of the draw-bar stem is formed a keyway 8, in which a strong key 9 is tted, as shown in the drawings. On the draw-bar, between the annular collar 7 and the front face of the buffer-sleeve or the interior annular flange, is fitted and arranged a strong spiral buier-spring l0 to receive or take the forcevof impacts iniiicted on thedraw-head, and on the stem, at th'e rear portion thereof, between the key 9 and the reariface of the buffer-sleeve or the interior annular flange, is arranged a strong spiral spring 1l, which serves as a cushion or relief spring against the force of which the pulling force on the draw-bar operates. A 'washer 12 is fitted between the key 9 and the spring ll, against which the spring ll bears at, that end.I The stem of the draw-bar is formed angular in cross-section in order that it shall not turn in its seat in the buffer-sleeve and also that it will pull straight'and swing on a horizont-al plane without turning in the sleeve.

For the ordinary usages the draw-bar is cast hollow throughout, as shown in' Fig. 2 of the drawings; but if additional strength is desired ory required a wrought ironor steel bar 13 may be rigidly iitted in the bore, as indicated in Fig. 4 of the drawings, in which case the key slot or way is made through the IOO ' to the bracket.

wrought bar also; andas another means of strengthening the draw-bar internal radiallydirected ribs fr are formed therein, extending the length of the bore, as indicated in Figs. G and 7 of the drawings.

The bracket B is strongly secured to a bar or plate Il of such length as may be desired, one end of the said bar bein g pivotall ysecu red to the king-pin of the car or to other such pin placed in a suitable point on the car, the connection being made through a pin or bolt hole l5 in the end ofthe bar let, so that the bar will move on a horizontal plane about its pivotal connection. The plate or bar 14 is slidingly supported at its free or front end on a cross-bar IG, secured to the car by any proper means, and may also be similarly supported at the rearportion, as by a cross-bar 17 ,and the front end of the draw-bar is also supported on a cross-bar 1S, on which it slides in its lateral movements in turning curves or other irregularities in the track.

In Figs. 5, 6, and 7 of the drawings the invention is illustrated as applied to a pivotallysupported buffer-sleeve turning on a verticallydisposed bolt uniting the bufter-sleeve The draw-bar is identical in construction with that hereinbeore specified; but the interior annular flanges in the bui'lersleeve are disposed toward the middle of the bufler-sleeve and at such distance apart as to be contiguous to the sides of the head of the pivot-bolt a, which is let through the butfer-sleeve by an opening b in the under side of the sleeve, as indicated in the drawings; and the buffer-sleeve A and the bracket B interengage by means of vertical circular flanges c c' on the upper face of the buttersleeve, which are engaged by downward-directed circular lflanges d d', setting in the seats formed by the circular iianges on the top of the buffer-sleeve- The bracket B in this construction is secured directly and rigidly to a proper support on the car, and the buiier-sleeve is held in pivotal connection therewith by the bolt a, the bufier-sleeve being guided and additionally strengthened in' the connection by the interengaging circular flanges; but to further maintain the parts in their operative connection a metal Stringer or support c is secured to any suitable part of the ear across and under the buler-sleeve and formed with a circular rib f, which engages in a counterpart circular seat g on the bottom of the buffer-sleeve, thus holding the sleeve at this point in direct line with the axial bolt on which it turns.

' By making the draw-'bar hollow it can be made larger in diameter, thus increasing its strength without materially increasing its weight, and by the use of a bull'ersleeve of the construction described the draw-bar may be made shorter than usual, and thus a sav* ing of material ellected. The whole construction is particularly well adapted to serv ice where thevdraw-bar and coupler must be carried considerably below the iloor of the car, as in elevated railways; but it may be applied with advantage to any kind of service where a simple and el'icient assemblage of elements is desired. y

To assemble the parts after the b uffeisleeve has been secured in place on the car, all that is necessary is to first slip the front or buffer spring on the stem of the draw-bar and move it forward until it rests against the annular collar. Then the draw-bar is passed through the buffer-sleeve. Then the ielietspring is arranged on the projecting stem portion of the draw-bar, the washer is placed in position, and then by pushing the draw-bar inward to compress the buffer-spring the key is passed into the way and the device is ready i'or operation.

lVhat I claim as my invention isl. In a draft appliance for railwaycars, a combined bracket and buffer-sleeve integral with each other, a suitable su pporting-bar secured to the bracket and pivotally connected to the ear at one'end to move on a horizontal plane, a draw-bar having its stem projected through the butter-sleeve, and formed with an annular collar, a buier-sprin g on the drawbar between the cellar and the iront end of the bulensleeve, a reliei-sprin g on the stein between the rear face of the buffer-sleeve and the end of the draw-bar stem, and a key projected through the rear end ci the draw-bar stem.

2. In a draft appliance for railway-cars, a combined bracket and buffer-sleeve, the bu E fer-sleeve part being substantially cylindrical and formed with internal annular flanges having angular openings, a suitable pivotallysecured support to which the bracket is secured and vmovable therewith, a hollow drawbar projected through the buftersleeve and having a limited vertical play in the openings therein, and formed with an annular collar, a spring on the drawbar between the buffercollar and the front interior flange of the buffer-sleeve, a spring on the rear portion of the draw-bar stein between the rearinternal Il ange oi' the buffer-sleeve and the end of the stem, and a key through the rear end ot the drawbar.

In combination with a cylindrical buffersleeve secured and supported to move on a pivotal support on a horizontal plane, of a draw-bar projected through the buffer-sleeve and formed with an annular birding-collar, a buffer-spring on the stein of the draw-bar between said annular collar and the buttersleeve, a spring on the stein of the draw-bar between lthe rearof the buffer-sleevo and the rear end of the draw-bar, and a retaining means at the end of the draw-bar stem.

l. In a draft appliance for railway-cars, the combination of a supportiiig-bracket and a butter-sleeve pivotally connected together, a draw-bar slidin gl y projected through the bul.- fcr-sleeve, springs on Vthe draw-bar at oppo site ends of the said sleeve, and a key to hold the springs and draw-bar in relative position.

IOO

IIO

5. In a draft appliance for railway-curs, the combination of L suitably-supported buffersleeve turningl on a vertical axis, a draw-bur projected through the sleeve and having 2L limited Vertical play therein, springs on the draw-bar on opposite ends of the buffer-sleeve with their ends hearing against the ends thereof, and menus on the draw-bar stem to hold the otherends ofthe springsin operative gosition.

In testimony whereof I affix my signature in presence of two Witnesses.

IVILLIAM T. VAN DORN. IVitnesses:

A. G. IIEYLMUN, ALFRED S. WILLsoN.