US1320563A - Draft-rigging - Google Patents

Description

G, T. MOORE.

DRAFT RIGGING.

APPLICATIDN FILED JUNE I7, 1918.

1919, 4SHEETSSHEET 2.

Patented Nov. 4,

Lszmsa 8 TL S S E N H W G, T. MOORE.

DRAFT RIGGING.

APfLlCATION FILED JUNE 17, {918.

1 20,563. Pate nted Nov. 4, 1919.

4 SHEETSSHEET 3.

G. T. MOORE.

DRAFT RIGGING.

APPLICATlON FILED mm: 17. 1918 Patented Nov. 4, 1919.

'ATTORY 4 SHEETS-SHEET 4.

WiTNESSES:

G. T. MOORE.

DRAFT HIGGING APPLICATION FILED JUNE 17. I'9l8.

4 SHEETS-SHEET I.

INVENTOR ATbNEY tages in view an rrnnr eerie.

GEORGE E. MGQBE, Q16 MILWAUKEE, WISCONSIN, ASSIGNOR 0F ONE-HALF TO WILLIAM F. HOFFMAN, OF CHICAGO,

ILLINOIS.

DRAFT-RIGGING.

Specification of Letters .Patent.

Patented Nov. 4, 1919.

Application filed June 17, 1918. Serial No. 240320.

To all '10 ham it may concern:

Be it known that I, GEORGE T. Moons, a citizen of the United States, and resident of Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented certain new and useful Improvements in Draft-Rigging; and I do hereby declare that the following is a full, clear,'and exact description thereof. y v

This invention relates to new and useful improvements in draft and buffing rigging and is designed for use in connection with the draw-bars of railway trains and in various other arts.

This rigging is of the usual combination friction and spring resistance type, the particular object of the present invention being to provide a double acting device of this character which will have a very extensive friction surface. In other words the rigging includes an elongated friction shell -move apart to their normal position.

' A further object is to provide a device of this character having two spaced sets of friction elements with means for normally holding these sets of elements apart.

With these and other objects and advanthe invention resides in the novel features of construction, combination and arrangement of parts which will be hereinafter more particularly described and claimed.

In the accompanying drawings Figure 1 represents a plan view of one end. portion of the running gear of a railway car having my invention applied to the draw-bar thereof, said inventionoeing shown in longitudinah'section. I

Fig. 12 is a plan view partly in section of the invention illustrated in Fig. 1.

Fig. 3 is an eievational view of a pair of friction elements showing the friction fintherein. The friction Fig. 4 is a similar view with a pair of said elements arranged in dissembled position. Flgl 5 is an end view of the form of the invention depicted in Figs. 1 and 2.

Fig. 6 is a transverse sectional view taken on the plane of the line 6-6 of Fig. 1.

Fig. 7 is a similar view on the plane of the line 7-7 of Fig. 3.

Fig. 8 is a longitudinal sectional view through a modified form of my invention, such section being taken on the plane of the line 8-8 0f 9.

Fig. 9 is a view of the form of my invention illustrated in Fig. 8, the friction shell being in longitudinal section and the fric- A tilon elements and associated parts being in an. Fig. 10 is an enlarged transverse sectional View on the plane of the line 10-10 of Fig. 8. Fig. 11 represents a longitudinal sectihnal view of a third modification of the invention, said section being taken on the plane of the line ll-11 of Fig. 12, and

Fig. 12 is a' transverse sectional view on the plane of the line 1212 of Fig. 11.

Referring particularly to Figs. 1 to 7 inclusive, which illustrate one form of my invention, it will be seen that the same in eludes a friction shell or easing 1 mounted between the usual center sills A of the frame of "a railway car, and that the combined friction and spring resisting means is located shell 1 is further p0- sitioned between spaced front and rear stops B and C respectively which extend inward y from the sills A. As is customary in the application of devices of this character, front and rear follower plates D and E re-" spectively are adapted to coiiperate with their corresponding stops Band C, and. the draw-bar F is connected with the follower plates by means of a draw-bar eagtension in V The operating parts of the invention inclosed within the friction shell'l, the opposite ends of which are open so that the same can move therethrou-gh, comprise two spaced sets of friction elements 2." and 3,- each set of which includes four identiczilly shaped elements. Those elements are so constructed that when assembled in operative position their periphery forms a circle whereby effective cobpcrstion may be bad with the inucr surface or friction face of the shell 1. Also each of tlic friction elements has a laterally extending friction finger 4: of such length that when the two sets of'elements 2 and 3 are spaced at considerable dist-once opart tliey will overlap the opposite corresponding element oi the other set. That is to suy the lingers are of less width than the elements. from whiolitheyjoxtend so that when assembled they interlock as clearly in- (licatod in Figs. 211ml 5 to '3; Each of the fingers is substantially the length of the friction shell 1 so that when the of ele ments 5: and 3 are expanded a. mofimum com tact will be had between. the friction face of tho shell Ii and said fingers.

Expansion of the sets of friction clements 2 and 3 is procured by the movement or s; pair of wedge members 5 sod formed between 6 respectively, the outer ends ct which contact with the follower plates D and E. Each of the Wedge members has inwardly extend ing cam faces WlIlGllfiOllGSPOHd with similar faces. on each of the several iriction elements forming the sets 2 and 3 whereby when said members are moved toward'ooc latter will be expanded; The small ends of the Wedge-members aro positioned inwardly or toward each other and, their outer ends are shouldered as at 7, such shoulders being adapted to abut an inwardly extending flange 8 on cachof the wedge iicembors.

An oxponsile coil spring 9' having its op osite ends engaged with saidgwcdge momcrs 5 and 6 is l coted withiio the cavity 10 blue two set'sof friction slements-2 and 3 by the fingers d; tlif. Also disposed in this covitylo arc a. oirot exp'onsile coil springs 11 end 1.5? both or; which surround the first mentioned spring 9, the spring 11 being considerably heavier and of roster diameter than the other spring 12, aid springs 11 and 12 bear against the ends of the cavity formed by the sets 2 and 3 and normally urge the latter away from each other. Excessive outward movement of the wedge members by the spring 9 is prcvcntod by a bolt 13 that, extend longitudinally through the friction shell, said Wedge members being slidcbly mounted on the opposite ends thereof. Said wedge members are thus free to move inwardly toward each other, but the head 14 of the bolt '18 and a nut 15 on the opposite end limit outward movement.

It is believed that the operation of this form of my invention is readily obvious from exan'iination of Fig. 1, but briefly it may be set forth as follows: Assuming that the car on which the invention i mounted is to be coupled through the draw-bar F to a secother, the

the drovwbor in the some direction. shifts the Wedge member 5 inwardly toward the other wcdgc member to thusoxpsnd the set of friction elomoiits 2 and ongcge their fixigers 4 with the friction shell 1, the friction elements 2 being siimiltzmeously moved in I tho some direction to compress tine springs 11 and 12. Thus the increase in tension of those a rings moves the friction elements 3 inwordy and against the wedge member 6," Which s held stat onary by the follower plats E. The set 3 of friction elements also toespsnd because of the feet that the fliltlOlifiilgbm 4 thereof are; over leppcd'witli the corresponding friction eloments of the set 2. Therefore when a risk is applied to the draw-bar a force is quickly excited for the purpose of retarding and stopping the movement thereof. Whom soul draw-bar is movedin on opposito direction the operations of the port oi the invention just described Willbe reversod.

Unlike the bowl of the invention just described which has its movable ports located in an open ended friction shell and retained in sssemblccl mist-ion by the bolt 13, the modification illustrated in Figs 11 and 12 includes a. two-part casing or friction shell 20, the sonic being 3 littmnsverscly. Coupling flanges 21 arc ormc'd ll-i the abutting or adjacent edr'es oithe two parts of the shell whereby t e latter may be secured to? getber by bolts 22. Each vopposite end of the shell has a central opening through A which the boss 23 of a \wecl e member 24: ex-

tends. Tho bosses are a ipted to be en eged'by the follower plates l3 and E or y any ot icr parts of the mechanism with which the invention is associated. v

The fticcs 0:51 the Wedge members 2i are inclined inwardly and the small ends thereof are positioned toward each other, said ends being engaged by an cxpsiisile coil spring 25; this spring; urgosthe Wedge members 24 away from each other sl d into engagement with the endsoi the shell. Movement thereof in on outward directiob is thus limited.

The com faces of this Wedge members 24 cocct with the inclinedhfaces oi the several similarly shaped friction elements which when assembled providc two distinct-sets 26 and 27, one of the members being cz'igagcd with each set. Each of the friction elements ranged in overlapping position with respect I to the other set undclternately with the finger thereof (see particularly Fig. 12). When the sets of elements 26 and 27 are err panded by y the inward movement of the wedge members 24, said fingers 28 are frictionally engaged with the inner surface of the shell 20. I I i v A pair of expansile coil springs 29" and 30 are-disposed between the two sets of friction elements and engage tlierewithito hold the same apart. ent modification is similar to that of the form previously described.

Figs. 8, 9 and 10 disclose athi'rd modification of my invention, the-friction shell or casing *0 in this case being open at one end and closed at the other, the closure wall having a central hole to permit a tubular boss 4.1 of a wedge member 42 to extend outwardly and externally of the hell. The cooperating wedge member 43 is substantially similar in shape to the first mentioned wedge member i2 and has its small end extending toward the corresponding end of the other. These wedge members slide on a centrally disposed bolt 4%, their outward movement with respect to each other being limited by the head -15 of said bolt ed'on its opposite end.

In this form of the invention, the friction members 47 and.48 which cooperate with the Wedge members 42 and i3 respectively are considerably different in design. For instance each of the elements .i'i'has a central longitudinally extending rib. 49 formed on its' peripher whereasthe other elements 48 each carry a friction finger 50,. 1

' throughout the length of the shell. a wedge each of said fingers as will be seen from Fig. '7

The outer surface of 'thesefingers :iOand the similan surface of the ribs 49 form l friction faces for cooperation. with the in-.

terior wall of. the friction shell iO. "Because:

of this relationship of the friction elen' ents,

the wedge members %2:and {14f are disposed at (lifi'eren'tangles as indicated in" Fig. 1Q, this being'difi'erent from the relation of the wedgejmei ib'erg used in the othe'r no'difica i,

'tlODS; i L r EX'pansilesp lngsfil and .bear against the two sets offriction elements fori'ned by the elements i-7 and 48' to normally urge the same apart, outward movement thereof; be-

ing limited by the bolt l4. Similarly the wedge ,n'iembers "42 and 43 are normally urged part-by an expansile coil Spring -SS, the oppositeends of. which engage the inner ends of the members. The general operationofthis forin 'ofinyn invention is also "identical to that of the other modifications andltl ierefore 'llBQlIl not be particularly described. From the foregoing description taken in 1 eon nectitin with the it will [be tibvii-ius tli at a. considerable ad- -'v,ance has been made in the art relating to The operation of this presmembers each closed end having 'edges, and means connecting the and a nut 46 threadl0 overlap two of the elements 457.;

, have liQIElllliOSOl} my thecounty of'Milwaukee and State of lVisaccompanying drawings .ing a closed end casing split transversely intermediate its ends to form two housing a central opening. coacting cou )ling flanges surroundingthe housing mem ers at their adjacent flanges, a pair o friction elements disposed .one in each housing member and projecting into the other, a wedge member engageable with each of the elements, each of said wedge members having a boss extending through the opening in the adjacent end of the casing, and resilient expansile means hetween said wedge mei bers.

2.1n a rigging of the class described, a relatively stationary friction shell, a pair of friction. elements disposed one at each end of the shell, a friction finger formed on the peripheral surface of each of said elements, each of the fingers being extended laterally from its element and toward the other element longitudinally of the shellfsaid fingers being of less width than the elements, the free end of each linger engaged with the peripheral surface of the whereby to )rovide a friction surface substantially member engaged with each of the elements, and resilient expansile means between said wedge members.

3: In; a rigging of the class described, a relatively stationary friction shell, a friction element at one end of the shell. a. longitudinally extending rib formed on the peripheral surface of said elen-ient, a pair of friction elements at the opposite end of the sliell,-a friction finger extending from each of said pair of frictionelements, the free ends of said fingers being slidably engaged with the peripheral surface of the being slidably first; mentioned friction clement. one of the.

fingers being on each side of saidv longitudinal rib, whereby to provide a friction surface substantially throughout the length of the shell, a wedge member engaged with the first mentioned friction means between said \vedge'm'embei's.

GEORGE 'T oons.

element. a second wedge member engaged with .the pair' of friction elements, and resilient expansil'e I claim the foregoing I i

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