US2678137A - Draft rigging for railway cars - Google Patents

Draft rigging for railway cars Download PDF

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Publication number
US2678137A
US2678137A US78530A US7853049A US2678137A US 2678137 A US2678137 A US 2678137A US 78530 A US78530 A US 78530A US 7853049 A US7853049 A US 7853049A US 2678137 A US2678137 A US 2678137A
Authority
US
United States
Prior art keywords
casing
follower
sleeve
shoes
friction
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
US78530A
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English (en)
Inventor
Harvey J Lounsbury
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 BE489848D priority Critical patent/BE489848A/xx
Application filed by W H MINER Inc filed Critical W H MINER Inc
Priority to US78530A priority patent/US2678137A/en
Application granted granted Critical
Publication of US2678137A publication Critical patent/US2678137A/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
    • B61G9/045—Draw-gear combined with buffing appliances with only metal springs
    • 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

  • a supporting tail bolt or plunger pivotally supported on the car for swinging movement, and a "friction shock absorbing mechanism, including a friction casing and spring resisted friction shoes slidingly telescoped within the casing, and
  • wedge means engaging the shoes, supported on the tail bolt between the front and rear followers of the sleeve, wherein the friction clutch, comprising the wedge and shoes is forced inwardly of the casing in draft by forward movement of the rear follower while the casing is held against forward movement by shouldered engagement with the plunger, and the casing is forced rearwardly by the front follower in buff to compress the mechanism against the rear follower, which is held stationary by shouldered engagement with the tail bolt structure of the draft rigging.
  • Figure 2 is a longitudinal, vertical sectional view, partly broken away, on an enlarged scale, of a portion of the drawbar and the friction shock absorbing mechanism shown in Figure 1.
  • Figure 3 is a longitudinal sectional View of the friction shock absorber of the improved mechanism, said section corresponding substantially to the line 3-3 of Figure 4.
  • Figure 4 is a rear elevational view of Figure 3, that is, looking from right to left in said figure.
  • Figure 1, 10 indicates one of the longitudinal draft sills of a railway car
  • the shank is being integral with the coupler and in the form of a hollow sleeve of substantially rectangular, transverse cross section.
  • Attached to the hollow coupler shank M is the usual hollow column or sleeve it, which is of rectangular, transverse cross section and forms a continuation of the coupler shank, being secured thereto by a clamping member or frame [7, provided with an internal groove I3 within which are seated.
  • the clamping member or frame ll has an upstanding lug 2i) thereon cooperating with the usual spring centering means, indicated by 2!.
  • the underframe structure of the car is also provided with the usual supporting member 22 for the tail bolt of the radial gear structure.
  • I provide broad- 13/ a supporting tail bolt or plunger A, a front follower B, a rear follower C, a friction casing D, three friction shoes EEE slidingly telescoped within the casing D, a wedge block F in wedging engagement with the shoes, and a spring G within the casing opposing inward movement of the shoes, the front and rear followers B and C and the friction casing" D and parts cooperating therewith, being mounted within the sleeve l5.
  • the tail bolt or plunger A is forked at its rear end, as indicated at 23.
  • the forked portion 23 comprises top and bottom, horizontally extending arms 24 and 25, engaged above and below a journal portion 26 formed on the supporting member 22, and connected to the latter by a vertically disposed pivot pin 21 extending through a vertical bearing opening in the journal portion 28 and aligned openings in the arms 24 and 25.
  • the tail bolt A is thus pivotally mounted on the supporting member 22 for lateral swinging movement.
  • the tail bolt A is provided with a cylindrical guide section 28 of larger diameter than the main body portion of the same, but of smaller size than the forked portion, thereby providing stop shoulders 29 and 36 at the points where the portion 28 merges with the main body portion of said bolt and the forked portion thereof.
  • the friction casing D which is in the form of a tubular member of hexagonal, transverse cross section, is disposed within the sleeve or column liiof the draft rigging.
  • the casing D is open at its rear end and has said open end provided with three interior, inwardly converging friction surfaces 3i-3l3l of V-shaped, transverse cross section, each surface 3
  • the casing D is provided with a vertically extending, transverse end wall 32 having a central opening 33 therethrough.
  • the friction shoes E are three in number and slidingly telescoped within the open end of the casing D.
  • Each shoe E has a V-shaped friction surface 34 on its outer side engaged with the corcasing D, is in the form of a helical coil, having its front and rear ends bearing, respectively, on the end wall 32 of the casing D and the inner ends of the shoes EE-E.
  • the tail bolt A extends through the casing D, passing through the wedge block F, between the shoes E-E--E, through the spring G, and through the opening 33 in the end wall 32 of the casing.
  • the front end of the tail bolt A projects beyond the front end of the casing D and carries a retainin nut 3?, which is threaded thereon.
  • A'washer 38 is interposed between the nut 31' and the front end of the casing D.
  • the nut 37 and cooperating washer 38 form stop means, limiting forward movement of the cas ing D.
  • the front follower B is in the form of a cylindrical sleeve, being arranged within the column 18 of the draft rigging in front of the casing D, and having its rear end normally bearing on the casing D.
  • the front end of the follower sleeve B normally shoulders against the rearwardly facing abutment provided by an inturned, annular stop flange 39 at the inner end of the hollow shank Id of the coupler it.
  • the front follower sleeve 13 is movable rearwardly in unison with the coupler it through shouldered engagement of the flange 32 of the coupler shank I 4 with the front end of the same, and thus transmittin rearward movement to the casing D.
  • the rear follower C is also in the form of a cylindrical sleeve. The same is yieldingly supported on the cylindrical portion 28 of the tail 7 bolt A and is interposed between the rear end of the wedge F and the forked portion 23 of the tail bolt A.
  • the sleevelike follower C is provided with a laterally outstanding annular flange 4E! engaged in back of an inturned annular flange ti formed on the rear follower C, being in shouldered engagement with the sleeve [6, is thus moved to the left, forcing the wedge F and shoes E-E-E inwardly of the casing D, against the resistance of the spring G, the casing being held stationary during this action by the stop nut 31 of the tail bolt A.
  • a draft rigging for a railway car the combination with a hollow column movable in unison with the drawbar of the draft rigging; of a rearwardly facing abutment at the front end of said column; an inturned stop flange on said column at the rear end thereof; a front follower sleeve within said column bearing at its front end on said rearwardly facing abutment; a friction casing within said column open at its rear end and bearing at its front end on said front follower sleeve; friction shoes slidingly telescoped within the open rear end of the casing; a spring within the casing in back of said shoes bearing at opposite ends on said casing and shoes to yieldingly oppose inward sleeve it at the rear end thereof.
  • the rear end of the follower C normally abuts the shoulder 30 at the rear end of the portion 28 of the tail bolt.
  • the hollow sleevelike follower C is provided with an inturned annular flange 42, adapted to engage the shoulder 29, at the forward end of the portion or section 28 of the tail boltA, simultaneously with the engagement of the follower with the shoulder 33 at the rear end of said portion 23.
  • a draft rigging for a railway car the combination with a tail bolt fixed to the car; of a nut at the outer end of said bolt; a friction casing open at its rear end, said casing having a transverse wall at its front end in shouldered engagement with the nut of said tail bolt to limit forward movement of said casing; friction shoes slidingly telescoped within the open rear end of the casing; a spring within the casing hearing at opposite ends on said casing and shoes to yieldingly oppose inward movement of the latter; a wedge block in wedging engagement with said shoes; a front follower sleeve bearing on the front end of the casing; a rear follower sleeve bearing on the rear end of said wedge block, said tail bolt having a forwardly facing shoulder on which said rear follower sleeve bears to hold said rear follower sleeve against rearward movement; and a sl eevelike column member within which said rear follower sleeve is slidingly telescoped, said column member being

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
US78530A 1949-02-26 1949-02-26 Draft rigging for railway cars Expired - Lifetime US2678137A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BE489848D BE489848A (en(2012)) 1949-02-26
US78530A US2678137A (en) 1949-02-26 1949-02-26 Draft rigging for railway cars

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US78530A US2678137A (en) 1949-02-26 1949-02-26 Draft rigging for railway cars

Publications (1)

Publication Number Publication Date
US2678137A true US2678137A (en) 1954-05-11

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US78530A Expired - Lifetime US2678137A (en) 1949-02-26 1949-02-26 Draft rigging for railway cars

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BE (1) BE489848A (en(2012))

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2727635A (en) * 1951-05-24 1955-12-20 Symington Gould Corp Rotary coupler
US2850179A (en) * 1954-11-24 1958-09-02 American Steel Foundries Rotary coupler arrangement
FR2367645A1 (fr) * 1976-10-15 1978-05-12 Miner Enterprises Appareil d'attelage de chemins de fer

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1209188A (en) * 1915-05-18 1916-12-19 Nat Malleable Castings Co Radial-draft gear.
US1580868A (en) * 1924-01-17 1926-04-13 Tomlinson Coupler Company Car-coupling mechanism
US1730214A (en) * 1923-10-25 1929-10-01 Miner Inc W H Friction shock-absorbing mechanism
US2220031A (en) * 1939-03-03 1940-10-29 Dornvan Corp Drawbar and anchor
US2451569A (en) * 1944-11-03 1948-10-19 Miner Inc W H Railway car-end buffer
US2471481A (en) * 1945-05-30 1949-05-31 Miner Inc W H Friction shock absorbing mechanism

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1209188A (en) * 1915-05-18 1916-12-19 Nat Malleable Castings Co Radial-draft gear.
US1730214A (en) * 1923-10-25 1929-10-01 Miner Inc W H Friction shock-absorbing mechanism
US1580868A (en) * 1924-01-17 1926-04-13 Tomlinson Coupler Company Car-coupling mechanism
US2220031A (en) * 1939-03-03 1940-10-29 Dornvan Corp Drawbar and anchor
US2451569A (en) * 1944-11-03 1948-10-19 Miner Inc W H Railway car-end buffer
US2471481A (en) * 1945-05-30 1949-05-31 Miner Inc W H Friction shock absorbing mechanism

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2727635A (en) * 1951-05-24 1955-12-20 Symington Gould Corp Rotary coupler
US2850179A (en) * 1954-11-24 1958-09-02 American Steel Foundries Rotary coupler arrangement
FR2367645A1 (fr) * 1976-10-15 1978-05-12 Miner Enterprises Appareil d'attelage de chemins de fer

Also Published As

Publication number Publication date
BE489848A (en(2012))

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