US2640602A - Cushioning mechanism for railway vehicles - Google Patents

Cushioning mechanism for railway vehicles Download PDF

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Publication number
US2640602A
US2640602A US182749A US18274950A US2640602A US 2640602 A US2640602 A US 2640602A US 182749 A US182749 A US 182749A US 18274950 A US18274950 A US 18274950A US 2640602 A US2640602 A US 2640602A
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US
United States
Prior art keywords
follower
followers
compensating
cushioning
yoke
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
US182749A
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English (en)
Inventor
Willison Donald
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.)
National Malleable and Steel Castings Co
Original Assignee
National Malleable and Steel Castings Co
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 NL91365D priority Critical patent/NL91365C/xx
Priority to NL91366D priority patent/NL91366C/xx
Priority to BE501956D priority patent/BE501956A/xx
Priority to BE539640D priority patent/BE539640A/xx
Priority to NL91965D priority patent/NL91965C/xx
Application filed by National Malleable and Steel Castings Co filed Critical National Malleable and Steel Castings Co
Priority to US182749A priority patent/US2640602A/en
Priority to US150473A priority patent/US2686602A/en
Priority to US182750A priority patent/US2640603A/en
Priority to GB6262/51A priority patent/GB703638A/en
Priority to GB23807/53A priority patent/GB722309A/en
Priority to FR1046573D priority patent/FR1046573A/fr
Priority to CH312021D priority patent/CH312021A/fr
Priority to DEN3643A priority patent/DE941913C/de
Application granted granted Critical
Publication of US2640602A publication Critical patent/US2640602A/en
Priority to GB19534/55A priority patent/GB778341A/en
Priority to DEN10893A priority patent/DE1036983B/de
Priority to FR1166418D priority patent/FR1166418A/fr
Priority to CH334178D priority patent/CH334178A/de
Priority to US520811A priority patent/US2898530A/en
Priority to US566254A priority patent/US2898520A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/40—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers consisting of a stack of similar elements separated by non-elastic intermediate layers
    • F16F1/406—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers consisting of a stack of similar elements separated by non-elastic intermediate layers characterised by the shape of the elastic elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
    • B61G9/00—Draw-gear
    • B61G9/04—Draw-gear combined with buffing appliances
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
    • B61G9/00—Draw-gear
    • B61G9/04—Draw-gear combined with buffing appliances
    • B61G9/06—Draw-gear combined with buffing appliances with rubber springs
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53613—Spring applier or remover
    • Y10T29/53617—Transmission spring

Definitions

  • Thepresent invention providesvarious-features and improvements over compensating type of cushioning: mechanism disclosed in the abovementionedapplications.
  • Fig. 2 is a. sideele-vational view. of the-mechanism shown; in; Fig. 1i
  • Fig.1 3 is a plan view. showing the firststageof compression. of the draft gear from. a. light buifingi force.
  • Fig. 45 is: a plan. view'showing' theseconct stage: of: compression; resulting from. a heavier lcuiiing force.
  • Fig. 6 isa perspective view of. one of the cusheioning: followersof the. cushioning: mechanism;
  • Fig. 9 is a plan view partly insectioniof amodis.
  • F is atypical. compression curveillustratr' ing the draft. and; buijing, characteristic of the. cushioning mechanism shown in the modification. shown in..Fig s. 1 1 and 1 2
  • the form of the invention, showninlligs. 1. to 8- inclusive is intended primarily for railway freight car service or for use, onswitching l co;- motives which are generally builtwithtlie standard A-.
  • Portions 44 are formed by spaced horizontal load transmitting arms 46 which extend from base 38 at the lateral extremities thereof, and by the vertical connecting portions 48 having draft lug engaging faces 49.
  • the compensating follower 40 which as shown in Fig. 7 comprises a base portion 50 and a yoke or coupler butt engaging portion 52 spaced from base 51i by webs 54.
  • the dimensions of the compensating follower are such that it may be passed transversely through the loops of the cushioning follower during assembly of the mechanism.
  • each loop portion 44 are spaced apart vertically a sufficient amount to permit the use of the same dimension rubber pads in the compensating units of the mechanism as in the central unit so that a greater cushioning capacity is obtained than if smaller sized pads were used in the compensating units.
  • This arrangement is made possible, without decreasing the strength of cushioning follower 34, by overlapping the sides of the yoke straps 62 with arms 46 of the cushioning follower.
  • the yoke straps 62 are recessed into the cushioning follower.
  • p t t The draft gear is assembled in the yoke as follows
  • the rear cushioning follower 34 is inserted between the yoke straps 62 in the manner shown Fig. 8 and, then rotated into proper position.
  • the associated compensating follower 40 isthen inserted transversely through the loops 44 of the cushioning follower and moved rearwardly until its portions 56a engage surfaces 56 on the cushionin follower.
  • One group 42 of compensating rubber pads is then inserted between the compensating follower and the cushioning follower, and this assembly is moved to the rearward end of the yoke.
  • the other cushioning follower iS similarly inserted into the yoke, its associated compensating follower inserted into place, and
  • the two followers, without any rubber pads between them are moved to the front end of the yoke.
  • the central group 31 of cushioning pads is inserted betweenthe two cushioning followers, and the assembly of yoke and draft gear, minus the second group of compensating rubber pads is placed upright in a press, supported on the rear end of the yoke.
  • Pressure is applied to the stop lug engaging faces49 of. the front cushioning follower sumcient to compress the central group and rearcompensating group of pads until.
  • the overall length of th draft gear. as measured over faces 49 of the front and rear cushioning followers is slightly less than the length of the draft gear pocket, which is 24 inches in the case of the standard A. A. R. draft gear pocket.
  • the front group of compensating rubber pads may then be freely inserted between the front compensating and cushioning followers. While the assembly is held in the press, metallic slugs or other suitable fillers may be inserted between the yoke and one of the compensatin followers to hold the draft gear compressed. The draft gear and yoke may then be removed from the press and the assembly can readily be raised up into the draft gear pocket in the car, after which the usualyoke or gear support plate 64 may be secured to the car sills ill.
  • the location of the assembly slugs will depend upon the type of yoke that is used. In the case of the Y-iO yoke shown in Figs. 1 to 4 the slugs may be applied between the rear edges 66 of the yoke hood and the shoulders 81 on central web 54 of front compensating follower 49, as illustrated in dot-dash at 68 in Fig. 4. This allows the coupler shank and coupler shank key to be freely inserted, thus completing the application of the draft gear. When the gear receives a buffing blow in service the slugs are released and are free to dro out of the assembly.
  • each of the groups of compensating rubber pads is under less precompression than the group of central cushioning pads. While I have shown the equivalent of 3 pads in each compensating group and the equivalent of 8 pads in the central group, it is to be understood that this is merely for the purpose of illustration and may be varied as desired, depending upon the characteristics of the pads used.
  • the precompression for each group of compensating rubber pads may be about 7500 pounds, for instance, and that of the central or main cushioning pads about 25,000 pounds.
  • the forward abutment may be formed by an integral portion of the yoke or by a separate bufiing block 88, as shown in Figs. 9 and 10.
  • the draft gear is thus held tightly in the yoke even though there may be considerable difference between case of the Y- iO yoke shown in Figs. 1 to 4 the coupler shank 22 is pressed tightly against the draft key 24, thereby eliminating any slack between the coupler and yoke, and automatically compensating for key, keyslot, and coupler butt wear.
  • a draft gear for railway vehicles comprising a pair of longitudinally spaced followers, a cushioning unit extending between said followers and being compressible upon movement of one of said followers toward the other, each of said followers comprising a pair of longitudinally extending loop portions positioned to engage the stop lugs of a draft gear pocket, and other cushioning units extending into and carried by said loop portions, said other cushioning units each being compressed between one of said followers and an abutment of an associated draft gear yoke for maintaining said draft gear in tight engagement with said yoke.
  • a draft gear for railway vehicles comprising a pair of longitudinally spaced followers, a cushioning unit extending between said followers and being compressible upon movement of one of said followers toward the other, each of said followers comprising a pair of rectangular longitudinally extending loop portions positioned to engage the stop lugs of a draft gear pocket, a compensating follower at each end of said gear having a transverse portion for engagement with the adjacent abutment in a draft gear yoke, said compensating follower being carried by the loop portions of the associated one of said first-named followers and being movable longitudinally thereof, and a compensating cushioning unit carried by said loop portions and being compressible upon movement of said compensating follower inwardly of the associated one of said first-named followers.
  • a draft gear for railway vehicles comprising a pair of longitudinally spaced followers, a cushioning unit extending between said followers and being compressible upon movement of one of said followers toward the other, each of said followers comprising a base portion in engagement with an end of said cushioning unit and a pair of rectangular loop portions extending longitudinally from said base portion and positioned to engage the stop lugs of a draft gear pocket, a compensating follower at each end of said gear having a transverse portion for engagement with the adjacent abutment in a draft gear yoke, said compensating follower being carried by said loop portions of theassociated one of said first-named followers and being movable longitudinally thereof, and a compensating cushioning unit at each end of said gear carried by said loop portions, each compensating unit reacting between said base portion of the associated first-named follower and said compensating follower to oppose movement of the latter toward said base portion.
  • a draft gear for railway vehicles comprising a pair of longitudinally spaced followers, a cushioning unit extending between said followers and being compressible upon movement of one of said followers toward the other, each of said followers comprising a base portion, vertically spaced arms extending in one direction longitudinally from the lateral extremities of said base portion, and a.
  • a draft gear for railway vehicles comprising a pair of longitudinally spaced followers, a cushioning unit extending between said followers and being compressible upon movement of one of said followers toward the other, each of said followers comprising base portion and a pair of laterally disposed rectangular loop portions extending longitudinally from said base portion and positioned to engage the stop lugs of a draft gear pocket, each of said loop portions having vertically spaced longitudinally extending arms extending into overlapping relationship with the sides of the straps of an associated draft gear yoke, the inwardly facing surfaces of said arms of each loop portion being spaced apart a distance equal to the height of said base portion, a compensating follower at each end of said gear having a transverse portion for engagement with the adjacent abutment in an associated draft gear yoke, said compensating follower extending laterally between said arms of each loop portion and being movable longitudinally thereof, and a compensating cushioning unit at each end of said gear extending between said arms, said compensating unit reacting between said base of the associated first-named follow
  • a draft gear for railway vehicles comprising a pair of longitudinally spaced followers, a cushioning unit extending between said followers and being compressible upon movement of one of said followers toward the other, each of said followers comprising a base portion in engagement with an end of said cushioning unit and a pair of rectangular loop portions extending longitudinally from said base portion and positioned to engage the stop lugs of a draft gear pocket, a compensating follower at each end of said gear movable longitudinally of said first-named follower, said compensating follower comprising a base portion extending into said loop portions of the associated one of said first-named followers and an abutment portion spaced from said base portion thereof and positioned to engage the adjacent abutment in a draft gear yoke, and a compensating cushioning unit extending between said base and abutment portions at each end of said gear for opposing movement of said compensating follower toward said base portion of said first-named follower, said compensating cushioning unit being carried by said loop portions.
  • a railway draft gear for assembly with a draft gear yoke and between the front and rear stop lugs of a draft gear pocket comprising followers for engagement with said stop lugs, each of said followers having a base portion and rectangular loop portions extending therefrom toward the end of said gear, the ends of said loop portions being positioned to engage said stop lugs, resilient means compressed between said base por- 59 tions and urging the ends of said loop portions into tight engagement'with said stop lugs, a compensatin'g'follower iat 'eachle'nd of said gear having atransverse portionfo r engagement withthe adjacent abutment in said yoke, said compensating follower being carried by said loop portions and being movable lengthwise thereof, and resilient means carried by loopportions andreac'ting between said base portion of the associated on'e ofsaidfirst nainedfollowers andsaid compensating "follower, said last-named resilient means being under predetermined initial compression for urging said compensating follower into engagement'
  • a pair of relatively movable followers one of said followers comprising a transverse base portion and a pair of rectangular loop portions extending longitudinally from .the lateral extremities of said base portion, theends of said loop portions being positioned. to engage the stop lugs of a draft gear pocket, and another follower having a base portion extending into said loop portions and being movable lengthwise thereof, said last-named follower having a draft gear yoke engaging portion spaced from said base portion thereof, and resilient means carried ,by-said loop portions interposed between said base portions to oppose movement of said last-named follower toward said base portion of said first-named follower.
  • a .pair of relatively movable followers one of said followers comprising a rectangular base portion, arms extending longitudinally from the corners of said base portion, and vertical portions joining the ends of said arms, said vertical portions being positioned to engage the stop lugs of a draft gear pocket, and a draft gear yoke engaging-follower extendingbetween said arrnsand being movable'lengthwise 'thereof, said last-named followerhaving a rectangular base portion of substantially the same lengthand width-as saidbase portion of said firstnamed follower, and resilient means between said base lportions-for-opposing movement of said lastnamed follower toward said base portion of said first-named'follower.
  • a railway draft gear for assembly with a draft gear yoke and between the front and rear stop lugs of a draft gear pocket comprising a central cushioning unit, followers engaging the ends of said unit and being of such extent longitudinally of said gear as to place said unit under initial compression when said gear is inserted between said stop lugs, said followers having spaced longitudinally extending loop portions the ends of which are positioned to engage said stop lugs, compensating followers extending into said loop portions and being movable lengthwise of said loop portions, said compensating followers being engageable with front and rear abutments in said lO yoke, and compensating cushioning units extending into said loop portions, said compensating units being under initial compression to urge said compensating followers tightlyagain'st said yoke abutmen'ts.
  • A'railway draft ,gear comprising a pair of relatively movable'followers, one-of said followers comprising a transverse base portion, vertical portions spaced longitudinally of said base portion and arms ,joining'the upper and'lower ends of said verticalporti'ons to (said baseportion, said vertical ,port'ions being positioned to engage -the stop lugs of a draft ge'anpocket, the other of said followers being engageable with an abutment in a draft .gear yoke, said second follower "facing said base ,portion and having lateral portions engageable with the inner sides of said vertical portions to .limit movement of said second Ifollower longitudinally away from said base ,portion, and resilient meansfor opposingmovement of said-second 'followertoward-said base portion.
  • a railway draft .gear comprisin a pair of longitudinally spaced followers, each of said followers having a base portion and longitudinal side portions ,positioned to engage thefront and rear stop lugs of a draftgear pocket, a group of resilient .pads compressible between said base portions, said .side portions having transverse openings, a compensating Tfollower at each end of said gear havinga transverse portion positioned to engage an abutment in a draft gear yoke, said followerbeing carried by "the associated one of said first-named followers "and being insertable therein transversely through said openings, and another group of resilient pads at each end o'fsaid gear between said cornpensating follower and said base portion to-oppose movement of said compensating follower toward said base .por'tion, said other group of resilient pads being 'insertable into said firstnamed follower transversely through said openings.
  • a railway draft gear for assembly with a draft gear yoke and between the front and rear stop lugs of a draft gear pocket, said gear comprising a central group of resilient pads having end followers formed with longitudinal loop portions of such length as to place said pads under predetermined initial compression when said gear is assembled between said front and rear stop lugs, each of said end followers comprising a transverse base portion engaging an end of said group of pads, and compensating groups of pads at the ends of saidgear placed under predetermined initial compression between front and rear abutments in said yoke, said loop portions encircling said compensating pads, said compensating pads reacting between said base portion of the associated one of said end followers and the adjacent abutment in said yoke, said followers and said pads each being of substantially the same extent in a direction transversely of said gear.
  • a railway draft gear for assembly with a draft gear yoke and between the front and rear stop lugs of a draft gear pocket said gear comprising a central cushioning unit, end followers engaging said unit, said followers being formed with longitudinal loop portions of such length as to place said unit under predetermined initial compression when said gear is assembled between said front and rear stop lugs, another cushioning unit at each end of said gear carried by said loops of each of said end followers, and a follower at each end of said gear extending into and carried by said loop portions, said second-named follower having a transverse portion positioned to engage the adjacent abutment in said yoke to place said second-named cushioning units under predetermined initial compression of a lesser amount than said central cushioning unit, said cushioning units and followers being so arranged that during initial actuation of said gear in either buff or draft one of said second-named cushioning units is compressed until the initial compression of said central unit is equaled after which said second-named cushioning unit and said central unit compress in series during the remainder of the
  • a follower member for a railway draft gear comprising a transverse base portion and a pair of rectangular loop portions extending longitudinally from the lateral extremities of said base portion, the ends of said loop portions having stop lugengaging surfaces, said loop portions being formed with transverse openings for receiving associated resilient means of a draft gear.
  • a follower member for a railway draft gear comprising a transverse base portion and a pair of rectangular loop portions extending longitudinally from the lateral extremities of said base portion, each loop portion comprising a, pair of vertically spaced horizontal arms and a vertical element joining the ends of said arms, said loop portions being spaced apart to receive in overlapping relationship the upper and lower straps of a draft gear yoke, said vertical elements having surfaces for engagement with the stop lugs of a draft gear pocket.
  • a pair of relatively 12 movable followers one of said followers comprising a transverse base portion and rectangular loop portions, said loop portions being spaced apart transversely and extending longitudinally from said base portion, said loop portions being joined by top and bottom walls, the ends of said loop portions having surfaces for engagement with the stop lugs of a draft gear pocket, said top and bottom walls being spaced apart a lesser amount than the straps of an associated draft gear yoke to enable insertion of said follower into said yoke by movement of said follower transversely into place between the yoke straps, and another follower carried by said loop portions having a surface for engagement with an abutment in said yoke, said other follower being insertable into said first follower transversely through said loop portions, and a cushioning unit carried by said loop portions and reacting between said base portion and said other follower to oppose movement of said other follower toward said base portion.
  • a railway draft gear comprising a forward follower and a rearward follower, a group of cushioning pads extending between said followers and being compressible therebetween, each of said followers having a pair of longitudinally extending loopportions for engagement with the stop lugs of a draft gear pocket, the loop portions of said forward follower being longer than the loop portions of said rearward follower, groups of cushioning pads extending into and carried by the loop portions of said followers said last-named groups of pads each being compressed between the associated one of said fol lowers and an abutment in an associated draft gear yoke to maintain said draft gear in tight engagement with said yoke, the group of pads carried by the loops of said forward follower being of greater capacity than the group of pads carried by the loop portions of said rearward follower.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Gears, Cams (AREA)
  • Vibration Dampers (AREA)
  • Gear Transmission (AREA)
US182749A 1950-03-18 1950-03-18 Cushioning mechanism for railway vehicles Expired - Lifetime US2640602A (en)

Priority Applications (19)

Application Number Priority Date Filing Date Title
NL91365D NL91365C (fr) 1950-03-18
NL91366D NL91366C (fr) 1950-03-18
BE501956D BE501956A (fr) 1950-03-18
BE539640D BE539640A (fr) 1950-03-18
NL91965D NL91965C (fr) 1950-03-18
US182749A US2640602A (en) 1950-03-18 1950-03-18 Cushioning mechanism for railway vehicles
US150473A US2686602A (en) 1950-03-18 1950-03-18 Cushioning mechanism for railway vehicles
US182750A US2640603A (en) 1950-03-18 1950-09-01 Cushioning mechanism for railway vehicles
GB23807/53A GB722309A (en) 1950-03-18 1951-03-15 Improvements in or relating to combined buffer and draw gear cushioning mechanism
GB6262/51A GB703638A (en) 1950-03-18 1951-03-15 Improvements in or relating to a combined buffer and draw-gear cushioning mechanism
FR1046573D FR1046573A (fr) 1950-03-18 1951-03-16 Perfectionnements apportés aux dispositifs amortisseurs
CH312021D CH312021A (fr) 1950-03-18 1951-03-17 Dispositif amortisseur pour attelage à tampon de choc de véhicules sur rails.
DEN3643A DE941913C (de) 1950-03-18 1951-03-18 Zug- und Stossvorrichtung fuer Schienenfahrzeuge mit Mittelpufferkupplung
GB19534/55A GB778341A (en) 1950-03-18 1955-07-06 Improvements in or relating to shaft positioning mechanisms
DEN10893A DE1036983B (de) 1950-03-18 1955-07-06 Vorrichtung zur Winkelverstellung von Wellen
FR1166418D FR1166418A (fr) 1950-03-18 1955-07-07 Mécanisme de réglage d'axe
CH334178D CH334178A (de) 1950-03-18 1955-07-07 Welleneinstellmechanismus
US520811A US2898530A (en) 1950-03-18 1955-07-08 Shaft positioning mechanism
US566254A US2898520A (en) 1950-03-18 1956-02-17 Electric circuit assembly

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US150473A US2686602A (en) 1950-03-18 1950-03-18 Cushioning mechanism for railway vehicles
US182749A US2640602A (en) 1950-03-18 1950-03-18 Cushioning mechanism for railway vehicles

Publications (1)

Publication Number Publication Date
US2640602A true US2640602A (en) 1953-06-02

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ID=26847706

Family Applications (2)

Application Number Title Priority Date Filing Date
US150473A Expired - Lifetime US2686602A (en) 1950-03-18 1950-03-18 Cushioning mechanism for railway vehicles
US182749A Expired - Lifetime US2640602A (en) 1950-03-18 1950-03-18 Cushioning mechanism for railway vehicles

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Application Number Title Priority Date Filing Date
US150473A Expired - Lifetime US2686602A (en) 1950-03-18 1950-03-18 Cushioning mechanism for railway vehicles

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US (2) US2686602A (fr)
BE (1) BE501956A (fr)
CH (1) CH312021A (fr)
DE (1) DE941913C (fr)
FR (1) FR1046573A (fr)
GB (2) GB722309A (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2724513A (en) * 1952-02-12 1955-11-22 Nat Malleable & Steel Castings Railway draft rigging
US2781135A (en) * 1952-11-13 1957-02-12 Nat Malleable & Steel Castings Draft gear and cushioning pad therefor
US2859883A (en) * 1955-08-05 1958-11-11 Buckeye Steel Castings Co Railway draft rigging
US4506868A (en) * 1983-05-27 1985-03-26 Sumitomo Metal Industries, Ltd. Shock absorber for vehicular couplers
US5598937A (en) * 1996-02-14 1997-02-04 Keystone Industries, Inc. Slackless drawbar assembly
US6446820B1 (en) 2000-09-07 2002-09-10 Amsted Industries Incorporated Railcar draft gear assembly and system
CN101698414B (zh) * 2009-11-09 2011-06-01 青岛四方车辆研究所有限公司 用于轻轨的半永久车钩
USD897238S1 (en) * 2018-05-01 2020-09-29 Strato, Inc. Selective cushioning apparatus for a railway car

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1227821A (en) * 1915-09-02 1917-05-29 William H Miner Friction-gearing having a compound release.
US2024868A (en) * 1931-05-25 1935-12-17 Pullman Standard Car Mfg Co Balanced draft gear
US2390496A (en) * 1943-12-29 1945-12-11 Entpr Railway Equipment Co Draft mechanism for railway cars

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1372109A (en) * 1918-03-02 1921-03-22 William H Toburen Band-holder
US2527589A (en) * 1946-08-03 1950-10-31 Nat Malleable & Steel Castings Cushioning mechanism for railway vehicles
US2486975A (en) * 1948-01-16 1949-11-01 Waugh Equipment Co Draft gear

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1227821A (en) * 1915-09-02 1917-05-29 William H Miner Friction-gearing having a compound release.
US2024868A (en) * 1931-05-25 1935-12-17 Pullman Standard Car Mfg Co Balanced draft gear
US2390496A (en) * 1943-12-29 1945-12-11 Entpr Railway Equipment Co Draft mechanism for railway cars

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2724513A (en) * 1952-02-12 1955-11-22 Nat Malleable & Steel Castings Railway draft rigging
US2781135A (en) * 1952-11-13 1957-02-12 Nat Malleable & Steel Castings Draft gear and cushioning pad therefor
US2859883A (en) * 1955-08-05 1958-11-11 Buckeye Steel Castings Co Railway draft rigging
US4506868A (en) * 1983-05-27 1985-03-26 Sumitomo Metal Industries, Ltd. Shock absorber for vehicular couplers
US5598937A (en) * 1996-02-14 1997-02-04 Keystone Industries, Inc. Slackless drawbar assembly
US6446820B1 (en) 2000-09-07 2002-09-10 Amsted Industries Incorporated Railcar draft gear assembly and system
CN101698414B (zh) * 2009-11-09 2011-06-01 青岛四方车辆研究所有限公司 用于轻轨的半永久车钩
USD897238S1 (en) * 2018-05-01 2020-09-29 Strato, Inc. Selective cushioning apparatus for a railway car

Also Published As

Publication number Publication date
FR1046573A (fr) 1953-12-08
DE941913C (de) 1956-04-19
CH312021A (fr) 1955-12-15
US2686602A (en) 1954-08-17
BE501956A (fr)
GB703638A (en) 1954-02-10
GB722309A (en) 1955-01-19

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