US2792946A - Car coupler - Google Patents

Car coupler Download PDF

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Publication number
US2792946A
US2792946A US375945A US37594553A US2792946A US 2792946 A US2792946 A US 2792946A US 375945 A US375945 A US 375945A US 37594553 A US37594553 A US 37594553A US 2792946 A US2792946 A US 2792946A
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US
United States
Prior art keywords
coupler
couplers
jaw
opposing
wing
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
US375945A
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English (en)
Inventor
William J Metzger
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 BE531316D priority Critical patent/BE531316A/xx
Priority to NL92049D priority patent/NL92049C/xx
Priority to NL190080D priority patent/NL190080A/xx
Application filed by National Malleable and Steel Castings Co filed Critical National Malleable and Steel Castings Co
Priority to US375945A priority patent/US2792946A/en
Priority to CH337225D priority patent/CH337225A/fr
Application granted granted Critical
Publication of US2792946A publication Critical patent/US2792946A/en
Anticipated expiration legal-status Critical
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
    • B61G3/10—Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements with coupling heads in the form of hook-like interengaging rigid jaws, e.g. "Willison" type
    • 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
    • B61G3/16—Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements with coupling heads rigidly connected by rotatable hook plates or discs and balancing links, the coupling members forming a parallelogram, e.g. "Scharfenberg" type

Definitions

  • This invention relates to car couplers of the rigidjawed type, and more particularly to guiding means therefor which make it possible to align the couplers for coupling from horizontally angled positions which formerly rendered coupling impossible.
  • This invention concerns the well-known Willison type of car coupler such as is shown in the Wittmer Patent No. 2,246,406, granted June 17, 1941.
  • the coupler in the Wittmer patent has spaced rigid pulling and bnffing jaws and is particularly adapted for use on mine or industrial cars.
  • the invention disclosed in the patent comprises an aligning wing with an abutment surface thereon disposed rearwardly of the buffing jaw of the coupler.
  • This aligning wing is adapted for engagement with the pulling jaw of an opposing coupler when the couplers are in a horizontally angled position with respect to each other as they come together for coupling. This engagement serves to increase the gathering range of the coupler.
  • the aligning wing disclosed in the above Wittmer patent functions satisfactorily to align the couplers for a large portion of the various horizontally angled positions of the latter encountered in service. -However, when the couplers come together for coupling under the condition in which one coupler is angled horizontally a substantially greater amount than the opposing coupler, the aligning wing is ineffective for aligning the couplers into proper position and a miscoupling results.
  • the reason for the miscoupling is that the pulling jaw of the coupler which is angled a lesser amount slides past the end of the aligning wing of the opposing coupler instead of abutting against the face of the wing. As a result, the wing is ineffective to align the couplers. Under this condition, engagement usually occurs between the buifing jaws of the couplers but such engagement is beyond the gathering range of the front abutment surfaces on the jaws and the couplers will not In addition, the aligning wing actually aids in displacing the couplers farther from coupling position.
  • a further object is to provide means on a coupler of :the rigid-jawed typewhich will align opposing couplers 2,792,946 Patented May 21, 1957 automatically move the approaching couplers to a position wherein coupling can occur even though initially one coupler is angled horizontally, with respect to its car, considerably more than the other coupler.
  • a further object of my invention is to provide means on a coupler of the rigid-jawed type which will prevent miscoupling of the couplers during extreme horizontal angling of one of the couplers.
  • a more specific object of my invention is to provide a forwardly projecting extension for the conventional alignment wing of a coupler of the rigid-jawed type which will preclude miscoupling of the couplers during extreme horizontal angling of one of the couplers.
  • a further object of my invention is to provide a coupler of the rigid-jawed type having guide means which will prevent miscoupling of the couplers during extreme horizontal angling of one of the couplers and which can be coupled with a coupler having the conventional aligning wing.
  • Fig. 1 is a plan view showing the initial engagement during coupling operations between two couplers embodying the invention, one of the couplers being shown in an extreme horizontally angled position while the other coupler is angled horizontally a substantially lesser degree.
  • Fig. 2 is a plan view of the couplers of Fig. 1 illustrating the movement of the couplers relative to one another from the position shown in Fig. l to a position from which proper alignment of the couplers for coupling may occur.
  • Fig. 3 is a plan view showing the movement of the couplers from the position shown in Fig. 2 to a position wherein alignment of the buffing and pulling jaws of the opposing couplers has been accomplished and coupling can be effected.
  • Fig. 4 is a plan view showing two of the couplers in coupled position and under pulling forces.
  • Fig. 5 is a front elevational view of one of the couplers shown in Figs. 1-4.
  • Fig. 6 is a side elevational view of the coupler shown in Fig. 5.
  • Fig. 7 is a plan view of two couplers having conventional aligning wings approaching for coupling from the same horizontally angled positions as the couplers in Fig. 1, the initial engagement between the couplers being shown in dot-dash.
  • a coupler having a head 2 which comprises a boiling jaw 4 and pulling jaw 6.
  • Buffing and pulling jaws 4 and 6 have diagonal front abutment surfaces 4a and 6a, respectively, for gathering and aligning an opposing similar coupler during coupling operations.
  • Connecting the pulling and bufling jaws and arranged at an angle to the longitudinal center line of the coupler is a bufiing face 8.
  • the pulling jaw of the coupler has a recess 10 adapted for receiving the complementary boiling jaw of an opposing coupler head. Forming one side of recess 10 on pulling jaw 6 is pulling face 12 adapted for engagement with complementary face 14 on the bufiing jaw of an opposing coupler head when the coupled couplers are subjected to pulling forces.
  • lock 16 Projecting forwardly of the butting face 8 adjacent jaw 4 is lock 16 for maintaining the couplers: in coupled position.
  • Lock 16 is rearwardly movable and is maintained in its forward or locking position by the action of a spring (not shown) which is compressed between the rearward end of the lock and the coupler head. The lock is retracted out of locking position by means of a lever 18.
  • Wall 21 comprises an inner portion 21a which extends diagonally rearwardly from head 2 of the coupler and an outer portion 2111 which forms a generally diagonally forwardly extending continuation of inner portion 210.
  • inner and outer portions 21a and 2112 have vertically extending front abutment surfaces 26 and 27, respectively, which lie in angularly disposed planes and are adapted for engagement with the forward or outer end of the pulling jaw 6 of an opposing coupler.
  • the length of inner portion 21a of wall 21 must he at least as great as the length of front abutment surface on on pulling '6 of the opposing coupler in order that interference between outer portion 21b of wall 21 and the outer end of pulling jaw 6 of the opposing coupler will not occur wh'en the couplers arsnovd to coupled positions.
  • Coupler B is shown in an extreme horiion'tally angled position with respect to line xx connecting the pivotal centers of the couplers.
  • Coupler A is shown angled a substantially lesser degree with respect to 1ine xx, and on thejsar'ne 'sideof line . ⁇ %'x as coupler B.
  • FIG. 7 it will be seen that if two couplers A and B, g each embodying the conventional aligning wing 20 (as shown in Wittmer Patent 2,246,406), are angled to the same position with respect to each other and to line xx as are the couplers illustrated in Fig. 1, then as the couplers approach for coupling, the outer end of pulling jaw 6 of coupler A will not engage front abutment surface 26' of the aligning wing 20 of coupler B since it is disposed outwardly of this surface. This is seen from the dot-dash position of coupler A in which engagement between its jaw fi and the opposing win'g20' occurs as atK.
  • coupler A moves forwardly toward coupler l3 while at the same time itrotates horizontally about its pivotal axis 28 further outwardly from line it will be observed that the head of coupler A has moved transversely of the head of coupler B. It is apparent that when coupler A has reached the position shown in Fig. 2, it is angled more nearly the same degree with respect to line x x as coupler B. This places coupler A in a position where proper alignment of the buffing and pulling jaws of the opposing couplers can be accomplished.
  • coupler B has been shown as not having changed its position during the movement of coupler A along abutment surface 27 of coupler B. This has been done merely for the purpose of illustrating the severest angled relationship of the couplers from which the improved aligning wing will positively gather the opposing coupler for coupling. It will be understood that "coupler B instead of coupler A actually could have rotated while coupler Aremained stationary, depending on the frictional "resistance to pivoting of each coupler, or both couplers could have moved. In either of the latter instances the coupler heads would have become so positioned transversely of one another that subsequent alignment and coupling of the couplers could occur.
  • outer portion 21b intersects inner portion 210 of forward wall 21 of the aligning wing may be increased or decreased from that shown. The effect of varying this angle is to increase or decrease the gathering range of the aligning wing. It will be observed, however, that outer portion 21b must be angled forwardly sufficiently with respect to inner portion 21a to assure that couplers A and B will move transversely of one another upon initial engagement as occursduring movement of the couplers from the Fig. 1 to Fig. 2 position. This initial transverse movement of the couplers is necessary in order to prevent any interference between the bufiing jaws of the opposing couplers as they straighten out for coupling.
  • a car coupler of the rigid-jawed type comprising a head with a pair of transversely spaced jaws including a pulling jaw and a bufiing jaw adapted to interengage with the jaws of an opposing coupler, and coupler aligning means disposed laterally and rearwardly of said buffing jaw and comprising a pair of angularly intersecting abutment surfaces for engagement with a jaw of an opposing coupler, one of said surfaces being disposed substantially in alignment with the forward face of said pulling jaw, the other of said surfaces extending generally diagonally forwardly of said first-mentioned one of said surfaces.
  • a car coupler comprising a head, a buffing jaw and a pulling jaw on said head disposed on opposite sides of the longitudinal center line of the coupler for interengagement with the jaws of an opposing coupler, said jaws having abutment surfaces adapted to engage the abutment surfaces on an opposing coupler to guide the couplers into interengagement when the couplers approach for coupling from predetermined horizontally angled relationships, and aligning means extending laterally of said head, said means comprising a pair of angularly disposed abutment surfaces located on one side of the coupler and rearwardly of said buffing jaw, the inner one of said last-mentioned surfaces extending diagonally rearwardly from said head and the outer one of said last-mentioned surfaces extending diagonally forwardly from said inner surface.
  • a car coupler having a pair of rigid transversely spaced jaws including a bufiing jaw, said jaws being adapted to interengage with the jaws of an opposing coupler, aligning means disposed rearwardly of and extending laterally of said buffing jaw, said means comprising inner and outer abutment portions disposed in angular relationship, said inner portion extending in a diagonally rearward direction and said outer portion extending in a direction forwardly relative to said inner portion for engagement with a jaw of an opposing coupler.
  • a 4. Aligning means. for a car coupler-of the rigid-jawed type comprising an abutment extending laterally from one side of the car coupler, said abutment including an inner portion and an outer portion for engagement with a jaw of an opposing coupler to align, the couplers during coupling, said inner portion extending diagonally rearwardly from the coupler and said outer portion extending forwardly from said first-mentioned portion and forming a continuation thereof.
  • a head having a pulling jaw and a bufiing jaw laterally disposed on opposite sidesof'the longitudinal centre line of the coupler, said jaws being adapted for interengagement with the jaws of an opposing coupler, aligning means pro jecting laterally from said head and comprising an inner portion facing the pulling jaw of an opposing coupler when the couplers are in coupled position, and an outer portion forming a continuation of said inner portion and extending forwardly relative to said inner portion, said outer portion extending laterally beyond the pulling jaw of the opposing coupler.
  • a head having fixed spaced pulling and butting jaws adapted to interengage with the jaws of an opposing coupler, one of said jaws having an aligning wing projecting laterally thereof, said wing having a forward wall comprising an inner portion and an outer portion, said inner portion being of substantially the same length as the front face of said pulling jaw, and extending in a direction parallel to the front face of the pulling jaw of an opposing coupler when the couplers are interengaged, said outer portion extending diagonally forwardly relative to said inner portion and being adapted for engagement with the pulling jaw of an opposing coupler for causing relative transverse movement between the coupler heads during coupling operations.
  • a car coupler of the rigid-jawed type comprising a head, said head having a pulling jaw adapted to interengage with a jaw of an opposing coupler, said pulling jaw having an abutment surface extending diagonally forwardly with respect to the longitudinal center line of the car coupler, aligning means extending laterally of said head and adapted for engagement with the pulling jaw on an opposing coupler, said means comprising an inner portion and an outer portion, said inner portion having a front abutment surface which extends diagonally rearwardly with respect to the longitudinal center line of the coupler and is complemental to the abutment surface on the pulling jaw of the opposing coupler and said outer portion having a front abutment surface which extends laterally of the pulling jaw on the opposing coupler when the couplers are in coupled position, said surface on the outer portion being a continuation of said surface on said inner portion and extending diagonally forwardly relative to said last-mentioned surface.
  • a head having a pair of transversely spaced jaws adapted to interengage with the jaws of an opposing coupler, said head having coupler aligning means extending laterally thereof and being positioned rearwardly of said jaws, said means comprising inner and outer portions for engagement with a jaw of an opposing coupler during coupling, said outer portion being angled forwardly relative to said inner portion, said outer portion during coupling operations being engageable with the jaw of an opposing coupler to slide the jaw to the juncture of said portions, after which rotational movement of the jaw relative to said juncture occurs to move the coupler heads transversely with respect to one another toward a position of alignment.
  • a car coupler of the rigid-jawed type comprising a head, said head having bufiing and pulling jaws and aligning means extending laterally from said head, said means comprising a forward abutment wall adapted for engagement with an opposing coupler when the couplers are in horizontally angled positions with respect to their

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
US375945A 1953-08-24 1953-08-24 Car coupler Expired - Lifetime US2792946A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BE531316D BE531316A (en)) 1953-08-24
NL92049D NL92049C (en)) 1953-08-24
NL190080D NL190080A (en)) 1953-08-24
US375945A US2792946A (en) 1953-08-24 1953-08-24 Car coupler
CH337225D CH337225A (fr) 1953-08-24 1954-08-23 Tête d'accouplement d'attelage de wagon

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US375945A US2792946A (en) 1953-08-24 1953-08-24 Car coupler

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US2792946A true US2792946A (en) 1957-05-21

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US375945A Expired - Lifetime US2792946A (en) 1953-08-24 1953-08-24 Car coupler

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US (1) US2792946A (en))
BE (1) BE531316A (en))
CH (1) CH337225A (en))
NL (2) NL190080A (en))

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2367644A1 (fr) * 1976-10-18 1978-05-12 Midland Ross Corp Perfectionnements apportes aux dispositifs d'attelage pour vehicules

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US834814A (en) * 1906-05-17 1906-10-30 Nat Malleable Castings Co Car-coupling.
GB273690A (en) * 1925-10-28 1928-06-14 Laszlo Kuertoessy Improvements in automatic railway buffer couplings
DE513684C (de) * 1930-02-08 1930-12-01 Knorr Bremse Ag Selbsttaetige Klauenkupplung
DE517815C (de) * 1927-03-18 1931-02-11 Laszlo Kuertoessy Dipl Ing Anordnung zur Vergroesserung des Greifbereiches selbsttaetiger Eisenbahnmittelpufferkupplungen
US1896959A (en) * 1925-10-28 1933-02-07 Kurtossy Laszlo Automatic coupling for railway vehicles
DE592212C (de) * 1934-02-03 Fried Krupp Akt Ges Schlauchverbindung
US2246406A (en) * 1938-08-10 1941-06-17 Nat Malleable & Steel Castings Car coupler

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE592212C (de) * 1934-02-03 Fried Krupp Akt Ges Schlauchverbindung
US834814A (en) * 1906-05-17 1906-10-30 Nat Malleable Castings Co Car-coupling.
GB273690A (en) * 1925-10-28 1928-06-14 Laszlo Kuertoessy Improvements in automatic railway buffer couplings
US1896959A (en) * 1925-10-28 1933-02-07 Kurtossy Laszlo Automatic coupling for railway vehicles
DE517815C (de) * 1927-03-18 1931-02-11 Laszlo Kuertoessy Dipl Ing Anordnung zur Vergroesserung des Greifbereiches selbsttaetiger Eisenbahnmittelpufferkupplungen
DE513684C (de) * 1930-02-08 1930-12-01 Knorr Bremse Ag Selbsttaetige Klauenkupplung
US2246406A (en) * 1938-08-10 1941-06-17 Nat Malleable & Steel Castings Car coupler

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2367644A1 (fr) * 1976-10-18 1978-05-12 Midland Ross Corp Perfectionnements apportes aux dispositifs d'attelage pour vehicules

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Publication number Publication date
CH337225A (fr) 1959-03-31
NL190080A (en))
BE531316A (en))
NL92049C (en))

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