US1353101A

US1353101A - Draft-rigging

Info

Publication number: US1353101A
Application number: US267591A
Authority: US
Inventors: Aaron N Warfield
Original assignee: Individual
Current assignee: Individual
Priority date: 1918-12-20
Filing date: 1918-12-20
Publication date: 1920-09-14
Anticipated expiration: 1937-09-14

Description

A. N. WARFIELD.

DRAFT RIGGING.

APPL|cAT1ou-f|LED Dic. 2o. ma.

lm9111011 sept. 14, 1920.A

1 Q QN SM UNITED STATES PATENT @meer AARON N. WARFIELD, or LONDON, ONTARIO, CANADA.

. DRAFT-RIGGING.

To all whom it may concern:

Be it known that I, AARON N. WARFLELD, a citizen of the United States of America, residing at London, in the county of Middlesex, Province of Ontario, and Dominionv of Canada, have invented certain new and useful Improvements in Draft-Riggingof which the following is a specification, reference being had therein to the accompanying drawings.

Y This inventionv relates to a draft rigging, and my invention aims to provide a draft rigging, either for freight or passenger cars, which will increase the traotive power of the locomotive and permit the locomotive to pick up a load, with a quick get-away, without undue stresses or vstrains on any part of the rolling stock, without the locomotive pounding or grinding rails, particularly at the joints, andwithout straining any connection between the various units of a train. i f

Mv invention further aims to provide a draft rigging wherein a series of springs are arranged, so that some ofsaid springs may coperate as a resistance against a draft and all of said springs coperate as a resistance against impact or a buffing action. The springs are compactly arranged to` resist a reciprocable movementofav draw bar, and relieve car couplers and rolling stock of ordinary jars and shocks incident to the coupling of cars or maintaining a yieldable conk nection between cars when in motion, thus increasing the longevity of rolling stock particularly when subjected to excessive stresses and strains.

My invention will be hereinafter described and thenclaimed, and reference will now be had to the drawings, wherein- Figure 1 is a horizontal sectional View of the draft rigging, showing the greater part thereof in plan;

Fig. 2 is a longitudinal sectional view of the draft rigging;

Fig. 3 is a side elevation of a buffer tie rod;

Fig. 4 is a similar view of one of the main tie rods of the draft rigging;

Fig. 5 is a cross sectional view of the draft rigging showing the housing thereof as including channel bars;

Fig. 6 is a similar view showing the housing as including I beams;

Specification of Letters Patent. Patented Sept. 14 1'920.

Application filed December 2o, 191s. VYserial'.1\-ro.v`2e7',51=:1. f

F ig. 7 is a similar view showing the housing including a channel member, and

Fig. 8 is a diagrammatic view illustrating i a modification of my'invention.

The draft rigging housing 4comprises top and bottom plates 1 disposed in parallelism, and connected, as shown in Figs. 1 and 5, by channel barsj2, which may be securedto the top and bottom plate by brazing, spot welding or otherwise, so th'atthe top and bottom plates will be maintainedV in `spaced 'relation and together with the channel bars 2 afford an oblong inclosure for the draft'rigging mechanism. It is also possible vto substitute beams' 3 for the `channel bars 2, as shown in F ig. 6, or make the housing of a channelmember 4 suitably connected to a top plate '.5 asshown in'Fig. 7 Considering'thehousing in nF ig's. 1 and 57 the outer end thereof isY providedv with `'sets of stops 6 and' 7- connected to thel Vchannel bars 2 by bolts and nuts 8 or other Yfast,ening means, the "set-of stops 6 being vof`greater length than the set of stops 7.

Mounted in the inner end of the housing is ayoke 9, serving as a'stop, and vintermediate the yoke 9 and the stops-6 are sets of stops 10Y and 11.* These ystopsfab'ut and hold a transversepartition Y12i inVK the housing and said partition hasopenings 13.

Slidable between the stops 6 is a cross head 14 connected to a draw bar 15 and adapted to impinge against the set of stops 7. Connected to the cross head 14 are tie rods 16 having enlarged cylindrical pick-up portions 17 slidable in the'openings 13 of the partition 12. l

Loose on the rods 16 and surrounding the able between the ends of the yoke 9 and the ends of the stops 10 and is normally held against the nuts 24 on the ends of the tie rods 16, said nuts extending into the yoke 9.

Slidable in the yoke 9 are buffer tie rods 25 provided with washers 26 and coiled springs 27, said springs holding the wash ers 26 normally against the yoke 9 and 'the nuts 24. As shown in Fig. 8, an additional set of springs 28 may be used for the same purpose as the springs 27, particularly in a draft rigging for passenger cars.

Considering the operation of the draft rigging and a draft in the direction of arrow A, Fig. 1, the draw bar 15 can shift theV cross head 14 toward the ends of the stops T and 1n consequence of this movement, the.

follower 22 remains stationary against the stops 6, the abutment members 19 are picked up or carried with the tie rods 16 placing the springs 2O under compression against the follower 22, and the abutment members 18 remain stationary while the follower 23 places the springs 2() under compression against the -abutment members 18. The follower 23 is limited in its movement by the stops 10 and the springs 27 remain inactive during thisdraft movement. Y

Considering a buff action in the direction of the arrow B, Fig. 1, the follower 23 and the abutment members 19 remain stationary, and the follower 22 and the abutment members 18 are shifted, placing the springs 20 under compression. The nuts 24 engaging the washers 26 and springs 27 cause said springs to be placed under compression in the yoke 9; the rods 25 sliding in said yoke during this movement. It is now apparent that three ormore sets ofsprings may eooperate in resisting a buff action. Irrespective of the number of sets of springs employed, I attach considerable importance to the novel arrangement of the stops, followers, abutment members and tie rods, and while in the drawings there are illustrated the preferred embodiments of my invention, it is to be understood that such changes as fall within the scope of the appended claim may be resorted to without departing from the spirit of the invention.

What I claim is In a draft rigging, a housing, a draw bar extending therein, a head connected to said draw bar, short and long stops carried by the confronting walls of said housing at one end thereof and the short stops adapted to be engaged by said head, a U shapedrear vstop carried by the side walls of said housing at the opposite end thereof, sets of stops carried by the side walls of saidhousing intermediate said U shaped rear stop and said long stops, a partition'between theintermediate sets of stops, rods carried bysaid head and extending through said partition into said U Vshaped rear stop, a follower on said rods normally engaging said long stops andadapted to be shifted by said Vhead into engagement with one set of stops, a follower on said rods normally engaging said U shaped rear stop and adapted to be 'shifted into engagement with the other set of stops, abutments on said rods in said U shaped rear stop for shifting the last mentioned follower, piek-up portions on said rods in said partition, abutments on the pick-up portions of said rods normally engaging said partition and adapted to move with said rods in opposite directions, springs on said rods in said, U shaped rear stop against the 'abutments therein, and springs on said rods against the partition abutments and said followers.

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

AARON N. VVARFIELD.

, Witnesses: y

R. E. VALKER, J WV. G. WINNETH.