US1488159A - Draft rigging - Google Patents

Description

March 25 1924. IASSS@ B. W. KABEL DRAFT RIGGING Filed Sept. 2, 1922 I l l I l I I /NVENTOR Application filed @enten/iter 2, 19293. rial do. www?.

To all/whoml it'may consom.' i Be it known that l, Brains W. citizen of the United States, residing t Baltimore, State of Maryland, have invfmtedl certain new and useful Improvements in Draft Rigging; and l do hereby declare the vfollowiuig to be a full, clear, and exact description of the invention, such as will cnable others skilled in the art to which it appertains tomake and use the same.

My invention relates to draft rigging for railway cars and, generally stated, lnvolves the production of a simple, Strona, easily manufactured and useful yoke memllier provided with means for receivin and retain-v ing the cushioning element of t e draft r in encased relation to the .associa draft rigging parte.

e principal feature of m invention, "Il particularly stated, resides in t e provision of friction draft rigging including a yoke mber formed with a housing, arra 1% to receivev the cushioning element, of the draft rigging through thefront of the yoke.

nother feature of my invention is to provide a combined integral' yoke member and draft gear housing, said oke member havin a hooded end, and sai housing being a opted to receive thecushicning element of 'the draft gear longitudinally of the yoke through the hooded end thereof.

A. further feature'iof the invention is to provide in combination with center sills and fronti-and .rear stop members, a hooded yoke preferably-'-lof` the vertical type and having an intl draft gear housin at the rear end thereof, the forward end o said housing being formed to accommodate and cooperate with friction members suitably aged adjacent an interposed follower.

There are other features of the invention as will more fully appear from the detailed demri tion of the embodiment which has been coscn for the purposes of illustration when taken in connection with the accompanying drawings in which- Figure l is a view in horizontal section through a portion of a railwa car draft rigging showing the yoke `mem r and integral sprin housing iated with the friction "i mechanism.

Figure 2 is a central vertical sectional view on the line 2-2 of Figure l, the housing of the yolre member being shown in side elevation ,karate t D, ASSIGNOE T@ THE T. E. SMESGTON a ccnrcnarron or new MHG.

Figure 3 is a transverse vertical sectional view on the line 3 3 of Figure 2.

Figure 4 is a detail transverse sectional view through the yoke member on the line 4-4 of Fi re 2, the friction wed being shown in e ovation.

Figure 5 is a transverse sectional view on the line 5 5 of Figure 2.

Referring to the drawings in vwhich similar reference characters designate' corresponding parts in the several views, the center sills are indicated by the numeral l, each of said sills being provided at its forward lend with a slot 2. Draft stop members 3 are connected by means of rivets to the inner faces of the center sills, said stop members being provided with slots 4, designed to register with the slots 2 inthe center sills and having stop faces or lug portions 5 extending'inwardly of the sills, said stop lugs being suitably reinforced by longitudinally arranged ribs 6. A striking cast u is shown at said casting'being connec A to the center sills and stop members 3 by means ofrivets 8.

The coupler 9, and more especially the shank thereof, is arran ed for sliding engagement with the yo e member a coupler key 11 extending through the slots in the center sills and slot members and constituting the connection between the coupler and yoke. The backstop member 12 is inte between and unites the center sills, rivets 13 serving to connect the side walls of the besliste to the inner faces of said sills. A bumng ace is provided on said backstop, said face being suitably reinforced by means of horizontal and -vertical lon tudinally extending ribs, as shown. T e backstop casting is ada ted to be engaged by the rear' portion o l the movable oke member on bung movement, as will be unded.

The oke member l0 is preferably of the verticalytype, and is formed with a hooded head or end le, the opposite side walls of. which are slotted, as at l5, to receive the cou ler key 1l. The outer ends of the side wallie are of atei' cross sectional area, thereby providing an incr si bearin surface for the key, the said side walls sing also outwardly :dared with their outer faces J in relatively close spaced relation to the inner of the cen sills. An housing or me i6 Mil formed on the rear ortion of the yoke member, said housin eing closed at its rear end by a wall l and open at its forward end to lreceive the cushionin elementvof the draft rigging. Formed wit in the housing is the spring pocket or recess into which is inserted through the front end of the yoke, the cushioning element of the draft rigging. The 4forward end of the housing is provided with horizontally dared wall. portions 18, each of which is formed with an inwardly inclined` friction wedge face 19, the outer ends of the daring portions 18 bein relatively closely spaced from the inner aces of the center sills.

Intermediate the wedging friction faces 19 I provide a plurality of friction blocks 20 and a wedge 2l. are adapted respectively to engage the friction faces 19 of lthe housing and the wedge 21 is-interposed between the wedging fricf tion faces 22 of the blocks. 'lhe friction blocks are effectively retained in position by thri upper and lower wall portions of the y Seated against the inner end of the wedge member 21 is a cushioning spring 23 of the draft ri ging, and if desired there may be provide an additional lighter spring 24 interposed between the rear wall 17 of the housing and a recess 25 provided in the wedge member 21. The sprin are, completely encased within the houslngforming the rear end of the yoke. A screw-threaded opening 26 is provided in the wedge 2l, said openin being adapted to receive the threaded en of a member inserted through an aligned opening in the wall 17 of the housing, to facilitate the shipping and handling of the parte prior to their assembly for use, as wi l he understood.

The follower is interposed between the friction blocks 20 and the draft stop lugs, said follower being adapted to transmit the bug strains from the coupler to the cushioning element and backstop, and also serving to transmit the pulling strains to the draft lug members upon the forward movement of the yoke member, as will be understood. Buding loads in excess of the cushioning element are transmitted through the follower contact-in with the forward edges of the daring portions 18 and thence through the housing 16 to the backstop, said housing 'lhe friction blocks 20 v Lasarte forming a maximum column area through which the strains are imparted to the rear stop member `and center sills. The spring housingl is preferably rectangular in cross section to providev this increased or -marr mum area. l

A yoke supporting member 28 connected to the lower flan es of the center sills provides a guide and support for the rear end of the yoke or housing, as shown. lipstanding portions 29 are formed on said supporting member between which the housing is guided, as clearly shown in Figure' 5., The top guide and retaining member 30 is arranged above the housing, said member bridging and being connected to the center sills. rl`he usual cover plate is indicated at 31.

A draft rigging constructed in accordance with my present invention provides a simple, compact and easily assembled structure. wherein the cushioning spring can be `readily inserted from the front end of the housing 4and effectively` retained therein by the interposed friction blocks and follower,

which latter are supported by the yoke member. @ther advantages in disassemblmg are also -obvious from the use of the unitary member serving as the draft yoke y and spring barrel. Changesl commensurate with the scope of my invention may he made and the terms herein are to be taken.. in their descriptive and not in their limiting sense.

' l claim:

ln a draft rigging, the combination with a coupler, of a rectangular casing or yoke member cooperating therewith, said casing having portions of its side walls removed intermediate the ends thereof, other and corres onding portions of each of said side wa ls beingarranged at an angle to the longitudinal axis of said casing, friction elements and a spring within said casing, some of said elements coacting with the angular portion of said side walls, and a-follower extending transversely through said casing, and means extending through the side walls of said casing adjacent the endsthereof for operatively connecting said coupler and casing. v

ln testimony whereof l affix my signature.

nanas vv. nanna.

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