US1123328A - Draft-rigging for railway-cars. - Google Patents

Description

APPLIC'ATIOV FILED JULY 7,1913,

Patented Jan. 5, i915 SSHEET SHEET l.

M. QM. NS. Nn,

G. Q. LEWIS. DRAFT RIGGING FOR RAILWAY pms.

APPLICATION FILED JULY 7,1913. Lgsgfg, Patented Jam. 5, IQIR.

' 3 SHBETS-SHEET 2.

. TS L MM, ma Nm NZ T r/ WM: nw n l w. Q

G. Q; LEWIS. DRAFT RIGGING FOR EAILWAY GARS.

" APPLICATION FILED JULY 7,1913.

Patented Jan. 5, 1915 `3 SHEETS-SHEET 3.

,A "N l,

MZ@ ATTOR `W1LLIAM H. M'NER, OF

CHICAGQ, ILLINOIS.

DRAFTRIGGING FOR RAILVfAY-GARS.

Specication of Letters latent.

messes.

rotem-ea aan. 5, icio.

Application filed July '7, l913.` Serial No. 777,626.

To i177, uhom 'it m 1,13/ concern.'

Be it known that l, GoonnicH Q. Lnwrs, a citixen ot the llnited States, resi ding at 'lllheatou7 in the county of Dupage and State ot' illinois, have invented a certain new and useiul improvement 1n Drafttopi-Ovide longitudinal section on line 2*@ ot4 Fig. 1;

Fig. 3 is a plan view partly in longitudinal section showing the position of the parts in jfull draft; Fig. 4 is a plan view partly in longitudinal section showing the position of the'parts in 'full buil. Fig. 5 is a halt1 cross section on line ivi-5 of Fig. l; Fig. d heli cross section on line 6-6 of Fig. Fig. 7 is a lperspective View oi: the friction shell; Fig. 8 is movable spring view of the follower; tive view of the wedge; Fig. 11 is a perspective .view of one ot the antifriction rolls; and Fig. 12 is a perspective view of one of the friction slices.

Referring to the drawings 13, 13 represeat; Fig. 9 is a perspectire Fig. 1G 1s a perspecsent draft sills or parts of the car frame to which the draft rigging is applied. Secured to the draft sills are the cheek plates 14, le, each having the front stop shoulders 15, 15, front limiting stop` shoulders 16, 16, rear limiting .st-on shoulders 17, 17, end rear stop shoulders 1S, 18. The cheek plates illustratcd in Fig. 1 of the drawings are well known, and now widely used..

The numeral 1i) represents a draw bar, 20 a yoke connected thereto, preferably by the key E21 passing through the yoke and draw bar, and through the elongated slots Q12 in the draft members and cheek plates. rlrhe tio plate Q3 supports the yoke and the draft gear 24 mounted between the draft memd ofv which tqhe butt of the is a' a perspective view of the'- bers. The draft gear comprises a short friction shell iriction mechanism .26.

within the shell, the movable spring seat 27,v

the springs 28 and the rear follower The friction shell-25 is preferably cylindrical in shape, and substantially of the same length as the Jfriction mechanism. At either side it is provided with lugs or projections 80, 30 adapted to engage within the slots 31, 31 formed within the cheek `plates, and thus rigidly 'secure the shell in a stationary position between the draft members. l prefer toorwardly extend the projections 30, 30 so as to 'adapt the shell with the other parts of the draft gear to mountingwithin the draft members in connection with the widely used stop members hcreinbefore described, and in which the slots 31, 31 are formed by the front stops at the forward end andthe front limiting stops 16 at the rear end. ln this construction a recess 32 is formed between the recesses 31, B1 within draw bar reciprocates. The movable spring seat :27 is provided with a shoulder 83, adapted to engage the rear end. of the friction shell in the normal position or the gear, and in pulling movement thereof.. The said movable spring seat is provided with a forwardly extendingv col Si, which engages the rear ends of the friction shoes' oit the Afriction mechanism 2G. The said friction shoes 35 are preferably three in number, each having an outer friction face 36 and an inner wedging face 37.

A The Wedge 3810i the friction mechanism is preferably py-ramidal in form, and is provided with wedging faces 39 equaling in number the friction shoes. An antiiriction roller 40 is disposed between each wedging face 39 of the wedge and the opposed we( ,fging .tace 37 of a friction shoe. rlhe 4forward. face 41 of the wedge 88 engages the rear end ot the draw bar, and is provided with a recess 4Q to receive the head of the connect- 'ing rod 2li, which passes through the wedge, through the perforation l5 in the movable spring scat 27, and through the perforation fili in the rear follower 29, the rear tollower being provided with a. recess L7 to receive the nut i8 ot the said connecting rod.

The springs QS are preferably three in number in nested arrangement, all of said springs boing forwardly seated against the movable spring scat 2.7, the inner spring 5()- Cil being seated against the boss 5l with which the .orward face of the rear follower 29 is provided, the intermediate spring 52 being mated against radial extensions 53 from said boss 5l, and the outer spring 54 being seated in a recess 55 formed between the boss 51 and forwardly extended flanges 5G with which the forward face of the rear follower 29 is provided.

V'On rearward movement of the draw bar the friction mechanism is brought into frictional action with the shell,` the movable spring seat 27 is forced rearwardly by the friction shoes, the rearward movement of said spring seat being meanwhile resisted by the springs 28. By reason of the rigid engagement of the friction shell and cheek pla tes the shock transmitted by the draw bar to the draft gear is distributed along the entire length of theattachment of the cheek plates-to the draft members. The position of the parts of the draft gear in full buff is illustrated in Fig. L of the drawings.

On forward movement of the draw bar the movable spring seat engages the rear end of the friction shell, and the draws the rear follower forwardly, compressing the springs between the rear follower and the spring seat 27, which is stopped against forward movement by the stationary shell. On forward movement of the draw bar it will be clear tion elements are not action, the gear being a spring gear in pull# ing movement and a spring and friction gear 1n bufiing movemen -mechanism within the draft yoke that the fricbrought into frictional I claim l. In a draft rigging for railway cars, draft members a stationary shell `rigidly secured thereto, a draw'bar, rear follower -and draft yoke, friction mechanism within the shell, springs without the shell operatively connected to the friction mechanism /and the draft yoke, the shell being forwardly provided with a recess, the draw bar en* gaging the friction mechanism and being adapted to reciprocate -in said recess.

2. In a draft rigging for railway cars, draft members, stop members secured thereto, a shell, friction mechanism in the shell, a draw'bar, yoke and springs operatively connected with the friction mechanism, the shell being provided with forwardly extend# ed lateral arms to engage the stop members and rigidly secure the shell thereto.

3. In a draft rigging for'rajilway carsflE draft members, a stationary shell rigidly Vmounted'on said'members, a draw-bar, a

yoke connected to said draw-bar, friction shell, said mechanism including friction shoes and a wedge, portions of which are normally'extended forwardly beyond the end of the friction shell, said shell being provided with forwardly eX- tenr ed lateral arms engaging the draft member;7 and between which the rear end of the draw-bar is adapted to reciprocate upon inward movements of the, latter.

, GOODRICH Q. LEVIS.

Witnesses: v JOHNy A. MARTINKUS, ELEANOR L. NASH.

Images