US2504253A - Railway draft rigging - Google Patents

Railway draft rigging Download PDF

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Publication number
US2504253A
US2504253A US696268A US69626846A US2504253A US 2504253 A US2504253 A US 2504253A US 696268 A US696268 A US 696268A US 69626846 A US69626846 A US 69626846A US 2504253 A US2504253 A US 2504253A
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US
United States
Prior art keywords
casing
drawbar
follower
friction
sill
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US696268A
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English (en)
Inventor
George E Dath
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
W H MINER Inc
Original Assignee
W H MINER Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to BE472597D priority Critical patent/BE472597A/xx
Application filed by W H MINER Inc filed Critical W H MINER Inc
Priority to US696268A priority patent/US2504253A/en
Priority to GB7611/47A priority patent/GB622407A/en
Priority to ES177948A priority patent/ES177948A1/es
Priority to FR946417D priority patent/FR946417A/fr
Application granted granted Critical
Publication of US2504253A publication Critical patent/US2504253A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
    • B61G9/00—Draw-gear
    • B61G9/04—Draw-gear combined with buffing appliances
    • B61G9/10—Draw-gear combined with buffing appliances with separate mechanical friction shock-absorbers

Definitions

  • FIG. 1 is a central, longitudinal, 'vertical sectional view of Figure 1, correspond- Patentecl Apr. 18, 1950 RAILWAY DRAFT RIGGING George E. Dath, Mokena, Ill., assignor to W. H. Miner, Inc., Chicago, 111., a corporation of Delaware Application September 11, 1946, Serial No. 696,268
  • This invention relates to improvements in railway draft riggings.
  • One object of the invention is to provide a friction casing or shell buttressed against the usual end sill of the car, and a spring resisted friction clutch telescoped within the casing and actuated by the drawbar, being forced inwardly of the casing in draft by a follower member carried by the drawbar and adapted to shoulder ,against the casing to limit compression of the friction shock absorbing mechanism.
  • Figure 1 is a longitudinal plan view, partly broken away, of the underframe structure at one end of a railway car, improvements in connection ing substantially to the line 2-2 of said figure,
  • Figure 3 is a transverse, vertical sectional view, correspending substantially to the line 3-3 of Figure 2, showing the friction casing in elevation.
  • Figure 4 is a rear elevational view of the front .sill of the underframe structure of a railway car at one end thereof, and lll l the draft sills.
  • Spaced inwardly from the end sill Ill is a transverse beam member l2 to which the inner ends ofthe draft sills are fixed, suitable brackets l3--l3 being employed for this purpose.
  • the draft sills ll-H are of channel-shaped cross section, having top and bottom flanges 4-74 3.
  • the front ends of the draft sills are supported from a cover plate I5, which is fixed to. the top fiangesM-M of thesills, the plate l5, in turn,
  • My improvements as shown in the drawings, comprise broadly a drawbar A; a front stop B; a friction casing C; a wedge D; friction shoes E-E-E; a spring resistance F; a follower G cooperating with the drawbar A and wedge D;
  • the drawbar A is of the type having a coupling hook at the outer end thereof for engagement with the coupling means of angadjacent railway draft rigging comprising a friction shock absorbing mechanism actuated by the usual drawbar to cushion draft. shocks, wherein the friction shock absorbing mechanism includes a 2 car.
  • the drawbar A has an enlarged head IT at the outer end having the hook formed thereon
  • the shank E8 of the drawbar A, which shank extends rearwardly from the hook thereof, is of cylindrical cross section, that is, in the form of a cylindrical bar or shaft.
  • a nut I9 is threaded on the rear end of the shank I8.
  • the drawbar is accommodated for lengthwise sliding movement by the front stop 3, which is fixed to the rear side of the end sill.
  • Ill as herein- ,after pointed out, and is provided with a forwardly projecting, cylindrical boss, 25!, which extends through an opening in the end sill.
  • the boss 28 protrudes slightly beyond the front side of the end sill l6 and is provided with a central opening or bore 2! therethrough in which the shank I8 of the draWbar'A is slidingly guided. Inward movement of the drawbar is positively limited by shouldered engagement of the head [1 thereof with the outer end face of the boss 20.
  • the guide rods or bars H are arranged at opposite sides of the drawbar A and have their front and rear ends fixed to the end sill In and the beam 12, respectively.
  • the guide rods HH extend through the end sill to and the beam 12 and the front and rear ends of each bar are threaded and provided with nuts 22--22 and 22-22 for clamping the bar H in position.
  • the rear end of each bar H is directly fixed to the beam [2 by the clamping nuts 22-22, which engage the front and rear sides of the beam.
  • the front ends of the bars extend through the end sill IQ and laterally projecting, securing ears 23--23 on the front stop B and are held clamped in position by the nuts 2222 at said front end, which engage, respectively, the outer side of the end sill ii! and the rear sides of the ears 23-43 of the stop member B, thereby also clamping this stop member to the end sill.
  • the friction shock absorbing unit proper comprising the easing C, wedge block D, shoes E, and spring F is disposed between the draft sills. II--II of the car in abutment with the front stop B.
  • the shank I8 of the drawbar A extends through this unit and actuates the same in draft action, as hereinafter pointed out.
  • the friction casing C is in the form of a shell of hexagonal, transverse cross section, open at the rear end and closed at the front end by a transverse wall 24. As shown most clearly in Figure 2, the closed end of the casing C bears on the front stop member B, being seated in a pocket 25 provided in the stop member,
  • Y extreme front end of the casing is rounded, as
  • the casing has three inturned stop lugs 29, said lugs being located at alternate corners of the same.
  • the wedge D is in the form of a hollow block having three inwardly extending, flat wedge faces 30 arranged symmetrically about the central longitudinal axis of the mechanism.
  • the wedge block D is also provided with three radially projecting lugs 3
  • the wedge block D hasa central opening 32 therethrough adapted to accommodate the shank I8 of the drawbar A.
  • the friction shoes E which are three in number, are alternated with the lugs 29 of the casing and each shoe has a lengthwise, extending V-shaped friction surface 33 on the outer side engaging with the corresponding friction surface of the casing, the V-shaped surface of each shoe engaging two adjacent surfaces 28-28 of the casing.
  • each shoe On the inner side, each shoe has a wedge face 34 engaged by the corresponding wedge face 30 of the block D.
  • the spring F which is preferably under initial compression, is disposed within the casing C and comprises inner and outer coils, bearing at their front ends on the end wall 2d of the casing, and having their rear ends bearing, respectively, on
  • the drawbar shank extends through the opening of the wall 24, the inner coil spring, the opening 32 of the wedge block D, and through the follower G which is carried on the drawbar.
  • a draft rigging for a railway car having a transverse end sill and a transverse beam rearwardly of said end sill, the combination with a front stop member on the inner side of said end sill; of a friction casing open at its rear end and closed at its front end and having said front end in engagement with the front stop; rigidly mounted guide bars at opposite sides of said casing having their rear ends fixed to said transverse beam and their front ends secured to said end sill and front stop member; a transversely disposed follower rearwardly of said casing, said follower extending from one guide bar to the other and being slidingly supported on said bars; a plurality of friction shoes slidingly telescoped within the rear end of the casing; a wedge block in wedging engagement with the shoes and having its rear end bearing on said follower; spring means within the casing yieldingly resisting inward movement of the wedge and shoes; and a
  • the follower G is in the form of a vertically disposed, transversely
  • the outer ends of the arms are slidingly guided on the bars H-H, the same being notched at their outer ends, as indicated at 31-41, to engage over said bars.
  • the drawbar shank l8 extends through a central opening 38 in the portion 35 of the follower G and is anchored to the latter by the nut IS.
  • the nut I9 is threaded on the rear end of the shank and abuts the rear side of the follower.
  • the central portion of the follower G bears directly on the outer end of the wedge block D to actuate the latter.
  • the nut 19 provides for adjustment of the follower G on the drawbar to compensate for wear of the parts of the mechanism and maintains the follower in contact with the wedge in the full release posiand forced against the friction surfaces of the;
  • a draft rigging for a railway car having a transverse end sill and a transverse beam rearwardly of said end sill, the combination with a front stop member on the inner side of said sill; of a friction casing open at its rear end and closed at its front end and having said front end in engagement with the front stop; rigidly mounted guide bars at opposite sides of said casing having their rear ends fixed to said transverse beam and their front ends secured to said end sill; an elongated, transversely disposed follower rearwardly of said casing, said follower extending from one guide bar to the other and having its opposite ends provided with laterally outwardly opening notches engaged over said guide bars to slidingly support said follower for lengthwise movement on said bars; a plurality of friction shoes slidingly telescoped within the open end of the casing; a wedge block in wedging engagement with the shoes and having its rear end bearing on said follower; spring means within the casing yieldingly resisting inward movement of the wedge block and shoes; and a drawbar extending through said

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Braking Arrangements (AREA)
US696268A 1946-09-11 1946-09-11 Railway draft rigging Expired - Lifetime US2504253A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BE472597D BE472597A (en(2012)) 1946-09-11
US696268A US2504253A (en) 1946-09-11 1946-09-11 Railway draft rigging
GB7611/47A GB622407A (en) 1946-09-11 1947-03-19 Railway draft rigging
ES177948A ES177948A1 (es) 1946-09-11 1947-05-07 Un dispositivo de arrastre para un vagón de ferrocarril
FR946417D FR946417A (fr) 1946-09-11 1947-05-08 Perfectionnements aux attelages pour chemin de fer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US696268A US2504253A (en) 1946-09-11 1946-09-11 Railway draft rigging

Publications (1)

Publication Number Publication Date
US2504253A true US2504253A (en) 1950-04-18

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ID=24796376

Family Applications (1)

Application Number Title Priority Date Filing Date
US696268A Expired - Lifetime US2504253A (en) 1946-09-11 1946-09-11 Railway draft rigging

Country Status (5)

Country Link
US (1) US2504253A (en(2012))
BE (1) BE472597A (en(2012))
ES (1) ES177948A1 (en(2012))
FR (1) FR946417A (en(2012))
GB (1) GB622407A (en(2012))

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8714377B2 (en) 2011-02-04 2014-05-06 Wabtec Holding Corp. Energy absorbing coupler
US8960464B2 (en) 2011-04-08 2015-02-24 Wabtec Holding Corp. Coupler support mechanism
US9758182B2 (en) 2013-03-22 2017-09-12 Wabtec Holding Corp. Automated coupler positioning device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1816121A (en) * 1930-08-29 1931-07-28 Robert R Mclamarrah Automobile trailer hitch
US2402146A (en) * 1943-03-16 1946-06-18 James R Cardwell Draft gear
US2403585A (en) * 1943-07-17 1946-07-09 Miner Inc W H Draft gear

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1816121A (en) * 1930-08-29 1931-07-28 Robert R Mclamarrah Automobile trailer hitch
US2402146A (en) * 1943-03-16 1946-06-18 James R Cardwell Draft gear
US2403585A (en) * 1943-07-17 1946-07-09 Miner Inc W H Draft gear

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8714377B2 (en) 2011-02-04 2014-05-06 Wabtec Holding Corp. Energy absorbing coupler
US8960464B2 (en) 2011-04-08 2015-02-24 Wabtec Holding Corp. Coupler support mechanism
US9758182B2 (en) 2013-03-22 2017-09-12 Wabtec Holding Corp. Automated coupler positioning device
US10040462B2 (en) 2013-03-22 2018-08-07 Wabtec Holding Corp. Automated coupler positioning device

Also Published As

Publication number Publication date
ES177948A1 (es) 1947-06-16
FR946417A (fr) 1949-06-02
GB622407A (en) 1949-05-02
BE472597A (en(2012))

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