US3635356A - Railway coupler butt - Google Patents

Railway coupler butt Download PDF

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Publication number
US3635356A
US3635356A US98658A US3635356DA US3635356A US 3635356 A US3635356 A US 3635356A US 98658 A US98658 A US 98658A US 3635356D A US3635356D A US 3635356DA US 3635356 A US3635356 A US 3635356A
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US
United States
Prior art keywords
coupler
butt
sidewalls
thickness
shank
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
US98658A
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English (en)
Inventor
Paul F Shramovich
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.)
Amsted Industries Inc
Original Assignee
Amsted Industries 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
Application filed by Amsted Industries Inc filed Critical Amsted Industries Inc
Application granted granted Critical
Publication of US3635356A publication Critical patent/US3635356A/en
Anticipated expiration legal-status Critical
Assigned to AMSTED INDUSTRIES INCORPORATED, A CORP. OF DE. reassignment AMSTED INDUSTRIES INCORPORATED, A CORP. OF DE. RELEASED BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: FIRST NATIONAL BANK OF CHICAGO, AS AGENT
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
    • B61G3/00—Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements
    • B61G3/04—Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements with coupling head having a guard arm on one side and a knuckle with angularly-disposed nose and tail portions pivoted to the other side thereof, the nose of the knuckle being the coupling part, and means to lock the knuckle in coupling position, e.g. "A.A.R." or "Janney" type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
    • B61G7/00—Details or accessories

Definitions

  • T I also serves to reinforce the rear spherical wall of the butt thereby increasing its wearing characteristics, 2,889,940 6/1959 Metzger ..2l3/69 2,973,103 2/1961 Tack ..2l3/64 2 Claims, 2 Drawing Figures PATENTED Mi 81912 3,635,356
  • This invention relates generally to railroad couplers and more particularly to an improved railroad coupler wherein the butt area of the shank has greatly improved characteristics as hereinafter described.
  • the improved coupler described herein has been provided with a rear spherical wall thickness Tand a minimum sidewall thickness t in such proportions that T: t.
  • T rear spherical wall thickness
  • t minimum sidewall thickness
  • Another object of the invention is to provide a new and novel improved railway coupler shank wherein the butt portion of the coupler carries a greater share of the coupler load and due to its own increased stiffness results in stress reductions in the coupler butt and sidewall portion of the shank.
  • Yet another object of the invention is to provide a new and novel improved coupler shank having increased wearing surfaces on the rear spherical wall.
  • FIG. 1 is a top plan view of the improved railroad coupler of the type herein described.
  • FIG. 2 is an enlarged sectional view of the shank portion at the butt area of the coupler shown in FIG. 1 taken along the horizontal centerline of the coupler.
  • FIG. 1 there is shown a typical railroad coupler comprising a head 12 and a shank 14.
  • the shank 14 is arranged to be received' within a yoke (not shown) in a conventional manner and is secured therein by meansbf a pin 16 extending through an opening 18 in the shank.
  • the opening 18 is also arranged to receive a bearing block 20, which slidably engages the pin 16 and which is in complementary arcuate thrust engagement as at 22 with the shank 14 at the rear extremity of the opening 18.
  • FIG. 2 of the drawing there is shown an enlarged sectional view of the butt portion of the coupler, shown generally as the numeral 24, which comprises a pair of sidewalls 26 rigidly fastened to a rear spherical wall 28 and a front wall 30.
  • the rear spherical wall 28 has a thickness as shown in the drawing by the letter T and is formed by a pair of radii 32 and 34 having their center at the intersection of the axis A-A and'BB.
  • the outer radius 34 as well as other critical dimensions on a coupler are controlled by standards set by the Association of American Railroads (AAR).
  • AAR Association of American Railroads
  • the sidewalls 26 have a minimum thickness as shown in the drawing by the letter r and are formed by a plurality of radii 36, 38 40, 42 and 44. These dimensions are also controlled by the AAR to insure that the end product of all coupler manufacturers will be interchangeable in operation and to insure that these couplers will be of sufficient strength to adequately protect the public at large.
  • the additional metal on the spherical end wall 28 not only increases the load carrying capabilities of the butt but causes the force and moment distribution to shift such that the stiffer butt portion carries a greater share of the total coupler load which, due to its increased stiffness (moment of inertial increase) and with an increased section modulus at most critical areas results in stress reductions in both the butt and sidewall portions of the coupler shank.
  • the improvement which comprises maintaining the thickness T of the rear spherical wall of the butt and the thickness t of the sidewalls in the approximate relationship that T: t thereby causing the force and moment distribution of the shank to change so that the proportionally stiffer and stronger rear wall resists a greater portion of the induced moment thereby providing a stress reduction in both the rear wall and the sidewalls, said improvement also serving to reinforce the rear spherical wall thereby increasing its wearing characteristics.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Handcart (AREA)
  • Turning (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
US98658A 1970-12-16 1970-12-16 Railway coupler butt Expired - Lifetime US3635356A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US9865870A 1970-12-16 1970-12-16

Publications (1)

Publication Number Publication Date
US3635356A true US3635356A (en) 1972-01-18

Family

ID=22270350

Family Applications (1)

Application Number Title Priority Date Filing Date
US98658A Expired - Lifetime US3635356A (en) 1970-12-16 1970-12-16 Railway coupler butt

Country Status (8)

Country Link
US (1) US3635356A (enExample)
AU (1) AU444581B2 (enExample)
BE (1) BE776476A (enExample)
BR (1) BR7108304D0 (enExample)
ES (1) ES397996A1 (enExample)
FR (1) FR2118499A5 (enExample)
GB (1) GB1339998A (enExample)
ZA (1) ZA717821B (enExample)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6446820B1 (en) * 2000-09-07 2002-09-10 Amsted Industries Incorporated Railcar draft gear assembly and system
US20090289023A1 (en) * 2008-05-23 2009-11-26 Marchese Thomas A Knuckle formed from pivot pin and kidney core and isolated finger core
US20090289024A1 (en) * 2008-05-23 2009-11-26 Nibouar F Andrew Railway coupler core structure for increased strength and fatigue life of resulting knuckle
US20090289022A1 (en) * 2008-05-22 2009-11-26 Smerecky Jerry R Railway coupler body improvements to improve knuckle rotation
US20090294396A1 (en) * 2008-05-22 2009-12-03 Smerecky Jerry R Central datum feature on railroad coupler body and corresponding gauges
US20090327416A1 (en) * 2008-06-26 2009-12-31 Ca, Inc. Information technology system collaboration
US8196762B2 (en) 2008-05-23 2012-06-12 Bedloe Industries Llc Knuckle formed without a finger core
US8544662B2 (en) 2008-05-22 2013-10-01 Bedloe Industries Llc Central datum feature on railroad coupler body and corresponding gauges
US9038836B1 (en) 2012-11-15 2015-05-26 Pennsy Corporation Lightweight coupler
US11345374B1 (en) 2012-11-15 2022-05-31 Pennsy Corporation Lightweight coupler

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2889940A (en) * 1955-06-20 1959-06-09 Nat Malleable & Steel Castings Railway draft rigging
US2973103A (en) * 1959-05-22 1961-02-28 American Steel Foundries Coupler bearing block assembly
US3402825A (en) * 1966-12-07 1968-09-24 Cushion Coupler Corp Railway cars provided with draft riggings incorporating shock-ab-sorbing mechanisms
US3568857A (en) * 1969-07-03 1971-03-09 Russell George Altherr Coupler keyslot bearing contour

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2889940A (en) * 1955-06-20 1959-06-09 Nat Malleable & Steel Castings Railway draft rigging
US2973103A (en) * 1959-05-22 1961-02-28 American Steel Foundries Coupler bearing block assembly
US3402825A (en) * 1966-12-07 1968-09-24 Cushion Coupler Corp Railway cars provided with draft riggings incorporating shock-ab-sorbing mechanisms
US3568857A (en) * 1969-07-03 1971-03-09 Russell George Altherr Coupler keyslot bearing contour

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6446820B1 (en) * 2000-09-07 2002-09-10 Amsted Industries Incorporated Railcar draft gear assembly and system
US8408406B2 (en) 2008-05-22 2013-04-02 Bedloe Industries Llc Central datum feature on railroad coupler body and corresponding gauges
US8544662B2 (en) 2008-05-22 2013-10-01 Bedloe Industries Llc Central datum feature on railroad coupler body and corresponding gauges
US20090289022A1 (en) * 2008-05-22 2009-11-26 Smerecky Jerry R Railway coupler body improvements to improve knuckle rotation
US20090294396A1 (en) * 2008-05-22 2009-12-03 Smerecky Jerry R Central datum feature on railroad coupler body and corresponding gauges
US8746473B2 (en) 2008-05-22 2014-06-10 Bedloe Industries Llc Railway coupler body improvements to improve knuckle rotation
US20090289023A1 (en) * 2008-05-23 2009-11-26 Marchese Thomas A Knuckle formed from pivot pin and kidney core and isolated finger core
US20090289024A1 (en) * 2008-05-23 2009-11-26 Nibouar F Andrew Railway coupler core structure for increased strength and fatigue life of resulting knuckle
US8646631B2 (en) 2008-05-23 2014-02-11 Bedloe Industries, LLC Knuckle formed from pivot pin and kidney core and isolated finger core
US8201613B2 (en) 2008-05-23 2012-06-19 Bedloe Industries Llc Knuckle formed from pivot pin and kidney core and isolated finger core
US8631952B2 (en) 2008-05-23 2014-01-21 Bedloe Industries Llc Knuckle formed without a finger core
US8196762B2 (en) 2008-05-23 2012-06-12 Bedloe Industries Llc Knuckle formed without a finger core
US8662327B2 (en) 2008-05-23 2014-03-04 Bedloe Industries Llc Railway coupler core structure for increased strength and fatigue life of resulting knuckle
US20090327416A1 (en) * 2008-06-26 2009-12-31 Ca, Inc. Information technology system collaboration
US9038836B1 (en) 2012-11-15 2015-05-26 Pennsy Corporation Lightweight coupler
US11345374B1 (en) 2012-11-15 2022-05-31 Pennsy Corporation Lightweight coupler

Also Published As

Publication number Publication date
GB1339998A (en) 1973-12-05
BE776476A (fr) 1972-06-09
ZA717821B (en) 1972-08-30
ES397996A1 (es) 1974-07-01
AU444581B2 (en) 1974-01-11
BR7108304D0 (pt) 1973-06-28
AU3605571A (en) 1973-05-31
FR2118499A5 (enExample) 1972-07-28

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Legal Events

Date Code Title Description
AS Assignment

Owner name: AMSTED INDUSTRIES INCORPORATED, A CORP. OF DE., IL

Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:FIRST NATIONAL BANK OF CHICAGO, AS AGENT;REEL/FRAME:005070/0731

Effective date: 19880831