CA1195660A - Type-e railroad car coupler head - Google Patents
Type-e railroad car coupler headInfo
- Publication number
- CA1195660A CA1195660A CA000411553A CA411553A CA1195660A CA 1195660 A CA1195660 A CA 1195660A CA 000411553 A CA000411553 A CA 000411553A CA 411553 A CA411553 A CA 411553A CA 1195660 A CA1195660 A CA 1195660A
- Authority
- CA
- Canada
- Prior art keywords
- lock
- knuckle
- seat
- lockset
- coupler
- 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
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- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
TYPE-E RAILROAD CAR COUPLER HEAD
ABSTRACT OF THE DISCLOSURE
A railroad car coupler includes a Type-E coupler head which contains a vertical lock chamber. Disposed in the chamber is a lock which may be raised from a lower locking position to an intermediate lockset position. At lockset, a knuckle pivotally carried by the coupler head may swing from a closed position to an open position. At lockset, the lock rests on a knuckle thrower of the coupler head with a lockset seat of the lock engaging a leg lock seat portion of the knuckle thrower. By forming the lockset seat of the lock on a selective lateral slope, the lock may be tilted toward a guard arm side of the coupler head. When the knuckle is swung toward its open position, a sufficient area of a tail portion of the knuckle passes under the lock to insure a proper pick-up of the lock to remove the lock from lockset.
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ABSTRACT OF THE DISCLOSURE
A railroad car coupler includes a Type-E coupler head which contains a vertical lock chamber. Disposed in the chamber is a lock which may be raised from a lower locking position to an intermediate lockset position. At lockset, a knuckle pivotally carried by the coupler head may swing from a closed position to an open position. At lockset, the lock rests on a knuckle thrower of the coupler head with a lockset seat of the lock engaging a leg lock seat portion of the knuckle thrower. By forming the lockset seat of the lock on a selective lateral slope, the lock may be tilted toward a guard arm side of the coupler head. When the knuckle is swung toward its open position, a sufficient area of a tail portion of the knuckle passes under the lock to insure a proper pick-up of the lock to remove the lock from lockset.
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Description
BACKGDOUND OF THE INVrNTIOM
Field of -the Inven-tion This invention ~_'ates to railroad car couplers a.d more particularly to couplers havlng the T~pe-E ccu?l?r head.
Prior Art . .. _ . ._ Railroad cax coupl.ers having a Type-E or Type-F coupler hedd are in comrnon use today. Each coupler head type has been approved by t~e AAR (Association of American Railroads) wherei.n -the couplers are assembled from standard components.
The use of standard components allows the railroads to purchase couplers and related replacement parts from several manufacturers with assura:nce that such parts can be used i.ntercharl ,c,~e..ibly .
The st:and~rd Type-E coupl.er is disclosed in detail in U.S~ Patent Nos. 3 850 312 and 3 853 228 for example~ The '3]2 patent suggests the use of an exterlded l.ock.-.;et seat on the .l.oc~ o the coupler which relocates a center of yravity of the locJc to improve lock rotation~ The 228 patent di-sclose.c an :improvernellt to the E-ty~e coupler operation obtained by xestricting movement of the knuckle thrower.
Additionally the 1974 Edition of Car and Locornotive Cyclopedia of ~merican Practices compiled and edi-ted for the AAR by Simmons-Boardman Publishing Corporation, New York NY, is an e~cellent source of detalled information on the ~AR standard couplers and related nomenclature.
In spite of its k~ng and continuous use the T~pe~-E
coupler is no-t free of o?erating problems~ rOr e~a-npl.e when the coupler head ~ock is placed in its lockset pOSi~iOI~, the knuc]cle may fail to open to release a second coupler mated thereto. ~his failure in operation can create a dangerous condition since the unreleasec knuckle may transfer draft forces to cause movement of its respective raîlroad car or a further car to which that car is joinedv SUMMARY OF THE INVENTICIN
A lock of a Type-E coupler head is carried in a vertical lock chamber formed within -the head. With a knuckle of the coupler head in a closed position, the lock may be dropped to i~s lowermost position within the lock chamber ~o prevent knuckle movement~ Addi-tionally, the lock may be raised to an inte~ediate position known as loc]cset. A-t lockset, the lock is maintained above a tail portion of the knuckle to c~llow the knuckle to swing ko lts open position.
At lockset, the position of the lock is maintained by lS engagement of a lockset seat of the lock with a leg lock seat of a knuckle thrower in the coupler head, By dividing t;h~ lockset seat of the lock laterally into portions and foI:m:ing a yuard ~rm side portion with an outward and upward slope, the lock may be tilted toward the guarcl arm side of the coupler head.
Tilting the lock in its lockset position as noted above provides several advantages not heretofore known~
First, a lower knuckle side edge of a knuckle shelf seat of the lock i5 raised in proximity to an u~per edge of 5~
a top surface o~ the knuckle tail por~ionO Thi.s increase in relative elevation ensures that when the knuckle swings towar~ its open positlon, -the knuckle tail portion edge passes uninterrupted under _..e lower lock edge. Contact between the knuckle tail portion and lock is delayed until there is sufficient area of the knuckle tail portion under the lock to support the lock~ As is well. k.nown, at this poi.nt the lock is lifted from lockset and supported by the knuckle tail portion. If the area for support were not suficient, the lock could inadvertently drop ~o its locking posi.tionO
Secondly, tilting the lock ~owardsthe guard arm side of the coupler head increases a space between the lock and knuckle tai.l portion. By increasing the space, a small lS Inov~ ent of the knuckle will not result in the knuckle tail portion cont acti.ng the loc~c~ Such contact could dislodge the lock Erom lockset w~erein the ].ock would drop to :its ~I.ocki.ng posit:ion in the l.oc~ chamber. Thus, by increasing ~IIQ sE)ace be~ween the knuckle tail portion and the lock as we.l.l .~s i.ncreas.inc~ the relative heig}lt: of the 1ower edge of ~h~ l.ock with respec~. to the knuckl.e ~ail poxtion, the operating difficulty noted above is substan~ially eliminated~
As an adcll tional benefit, the lock is also easier to Labricate. The lock, preferably being cast, should include surfaces with a draft to allow ready removal from its mold set. The sloped portion of the lockset seat of the lock will preferably he correc-tly drafted to promote release of -the lock~
DE_C_RIPTIO~ OF T~-~ DRAWINGS
FIG. l is an elevational ~iew in cross section of a Type-E railroad car coupler '..~ac. with a knuckle of the coupler head closed and loc,;~ed.
FIG. 2 is an ele~a-tionai view in cross section of the coupler head of FIG. l wherein rhe knuckle remains closed but is not locked in that a lock of the coupler head has been placed :in its lockse-t posi.tion.
FIG. 3 is an elevational view in cross sect.ion of the coupl.er head of F~G. l wherein the knuckle has moved toward i1;s open posi.tion and as a .result the lock has ~ee~n lifted from its lockset position.
F'IG. 4 is a plan view in cross section of the coupler head as seen generally along the line 4-4 of FIGS~ 1 and 3.
~ 'IG. 5 i.s a simplified elevational view showing the rel.ationship of a portion of the lock to a tai.l portion of the knuc}~le as seen generally along the line 5-5 of E'IG. 2.
~ IG. 6 is a guard arm si.d~ elevati.onal view of t.he lock used i.n the co~lpler of FIGS. 1-4.
E'IG. 7 is a simplified rear elevational view of the coupler head ].ock as engaged with a knuckle thrower of t,he eoupler head.
DESCRlPTION OF T~E PREFERRED _MBODIMENT
A Type-E railroad car coupler head is shown generally in FIGS. 1-4 and desisnated lO~ The coupler head lO is carried at the end of an elongated shank 12 shown in part.
'.'5 The shank l~ woula be connected to d bod~ of a railroad car ~not shown) in a known manner.
Th~ coupler h_ad 10 inclu~es a knuckle 14 pivotally carried on a pin 15 which in turn is supported between spaced upper and lower lugs 18, 20. As seerl in ~IG~ 1, the knuckle 14 is in a closed and locked positio~. In this osi-ion, movement of the knuckle 14 is inhibited by inter-e-rence with a lock 22 carried within a vertical lock chamber 24 formed within the couplex head 10. As shown thc lock 22 is in a lowermost position within the chamber 24.
In this lowermost locking position, a knuckle shelf seat 26 of the lock 22 ~ests on a lock shelf 28 Eormed as part of a tail portion 30 of the knuckle 14. As best seen in FIG. 4, the tail portion 30 is located substantially within the coupler head 10. The knuckle tail portion 30 has a vertical locking face 32 which is located to engage a lockiny face 34 of the lock 22 to prevent rotation of the knuckJe 14 from its closed posi.tion.
As seen in FIGS. 2 and 5, the lock 22 has been raised to its lockse-t position by a lock lift assembly 36. The ~lssembly :36 comprises a series of joined linXs which connect W:i.til a lec~ 38 oE the lock 22. The leg 38 of the lock 22 il~Cltldes a lockset seat 40 which engages a leg lock seat portion 42 of a knuckle thro~er 44 to support the lock 22.
In the lockset posi-tion, the lock 22 is raised sufficiently to allow the knuckle tail portion 30 of the knuckle 14 to ~5 swing under a lo~er knuckle side edge 46 fo med at a joinder of the knuçkle shelf seat ~6 and the locking façe 34 of the loc~ 22.
Note that the lockset seat 40 or the lock 22 is longi-tudinally downwardly and inwardly sloped, i.e~ toward the knuckle .thrower 4~ as best seen in r-IG. 5 This conrigura-tion hsl?s to maintai.n the lockset sia~ c~O on the leg lock seat A 2 of the thrower 44 As shown .~ I . 7, the thrower leg ~2 has a slight upward slope ~frGr~ l_S -runnion pin As 8.
m-he lockset seat 40 of the loc}c ~ is divided into knuckle side portion 50 and a gu2rd arm side ?ortion 52.
The guard arm side portion 52 laterally is upwardly and outw~rdlv sloped from a point S4 at which the two portio1ls SO, 52 join.
:lO The lock 22 is fa~ricated by casti.ng. A cope and drag rorm a mold set in which the lock 22 is cast. The~poillt 54 is located to su~stantiall~ align wit.h a parting line B-B
formed by the mold set parts. Thus, the sloped guard arnt portion 52 provides a clesired draft to promote removal of 1.5 the lock 22 from the mold set.
The point 54 also lies on the knuckle side of a center of: gravltv of the lock 22. Thus, when the lockse1^ seat 40 of the lock 22 en(3c1ges the ley lo~k seat 42 of the 1cn1lckle rowe.r ~, 1he engct(Jemerlt is substanti-llly limited to t.he ~arcl .~r.111 portion 52 of the lockse-t seat 40. The slope of e ~ucl:rd arm portio1t 52 is suffi.cien~ to offse-t the 510pe ~t^ t:1e thrower leg lock seat 42. A.s seen in FIG. 7, the lock 22, therefore, is slightly til-ted toward a guard arm side portion 56 of the coupler head lO.
~5 This g11~ard arm tilt of the lock 22 produces a space 58 between the lower knuckle si~e edge 46 of the lock 22 and an pper kntlckle tail portion edge 60 deLining a ~oinder o-f an ~p?er su-;face 62 of the knuckle tail portion 30 and the ~nuckle t~il portion locking face 32. This spâce 53 insures ~6--that a slight movement of the knuckle 14 will no-t result in contact between the knuckle tail portion 30 and the lock 22.
Such contact could jar the lock 22 from its lockset positlon whexein the lock 22 would drop to i-ts locking posi-tion as seen in FIG. 1.
When the knuckle 14 is in its closed position, i.eO the knuckle 14 defined by solid lines in FIG. 4, a nose 64 of the knuckle 14 is a dis-tance D from a guard arm face 66 of the coupler head 10. Under AAR standards, the distance D
must proximate 4-5/8 inches. As the knuckle 14 swings toward its open position, the nose 64 of the knuckle 14, i.e. the knuckle 14 defined by bxoken lines in FIG. 4, should be a distance J from the guard arm face 66 before contact is made between the knuckle shelf seat 26 o-f the lock 22 and the upper surface 62 of the knuckle -tail portion 30. Upon contact, the knuc}cle tail portion 30 lifts the loc]c 22 from its ].ockse-t pOSitiO}I. AAR standards set this d1stance J be-tween 5--1/4 and 6 inches wherein the knuckle 14 l1as rotated proximately 12 degrees. ~he guard arm -til-t of ~0 the lock 22 raises the lower eclge 46 of the lock 22 wlth re.sp~c-t to the uppe:r edge 60 of the knuc]cle tail portion 30 insuring that the contact noted above is not premature.
Thus, upon contact between the knuckle tail portion upper surface 62 and the knuckle shelf seat 26 of the lock 22, there is su~ficie~-t area of the knuckle tail portion upper surface 6 under the lock 22 to properly suppor-t such.
While various modifications may be suggested by those versed in the art, i-t should be understood that I wlsh to embody wi. ~hin -~he scope c):E the 2a tellt ~arr~nted hereon all such modi.fications as reasonably and ~.roperly come within the scope Of T~y csn, ributi.on to -~he art.
Field of -the Inven-tion This invention ~_'ates to railroad car couplers a.d more particularly to couplers havlng the T~pe-E ccu?l?r head.
Prior Art . .. _ . ._ Railroad cax coupl.ers having a Type-E or Type-F coupler hedd are in comrnon use today. Each coupler head type has been approved by t~e AAR (Association of American Railroads) wherei.n -the couplers are assembled from standard components.
The use of standard components allows the railroads to purchase couplers and related replacement parts from several manufacturers with assura:nce that such parts can be used i.ntercharl ,c,~e..ibly .
The st:and~rd Type-E coupl.er is disclosed in detail in U.S~ Patent Nos. 3 850 312 and 3 853 228 for example~ The '3]2 patent suggests the use of an exterlded l.ock.-.;et seat on the .l.oc~ o the coupler which relocates a center of yravity of the locJc to improve lock rotation~ The 228 patent di-sclose.c an :improvernellt to the E-ty~e coupler operation obtained by xestricting movement of the knuckle thrower.
Additionally the 1974 Edition of Car and Locornotive Cyclopedia of ~merican Practices compiled and edi-ted for the AAR by Simmons-Boardman Publishing Corporation, New York NY, is an e~cellent source of detalled information on the ~AR standard couplers and related nomenclature.
In spite of its k~ng and continuous use the T~pe~-E
coupler is no-t free of o?erating problems~ rOr e~a-npl.e when the coupler head ~ock is placed in its lockset pOSi~iOI~, the knuc]cle may fail to open to release a second coupler mated thereto. ~his failure in operation can create a dangerous condition since the unreleasec knuckle may transfer draft forces to cause movement of its respective raîlroad car or a further car to which that car is joinedv SUMMARY OF THE INVENTICIN
A lock of a Type-E coupler head is carried in a vertical lock chamber formed within -the head. With a knuckle of the coupler head in a closed position, the lock may be dropped to i~s lowermost position within the lock chamber ~o prevent knuckle movement~ Addi-tionally, the lock may be raised to an inte~ediate position known as loc]cset. A-t lockset, the lock is maintained above a tail portion of the knuckle to c~llow the knuckle to swing ko lts open position.
At lockset, the position of the lock is maintained by lS engagement of a lockset seat of the lock with a leg lock seat of a knuckle thrower in the coupler head, By dividing t;h~ lockset seat of the lock laterally into portions and foI:m:ing a yuard ~rm side portion with an outward and upward slope, the lock may be tilted toward the guarcl arm side of the coupler head.
Tilting the lock in its lockset position as noted above provides several advantages not heretofore known~
First, a lower knuckle side edge of a knuckle shelf seat of the lock i5 raised in proximity to an u~per edge of 5~
a top surface o~ the knuckle tail por~ionO Thi.s increase in relative elevation ensures that when the knuckle swings towar~ its open positlon, -the knuckle tail portion edge passes uninterrupted under _..e lower lock edge. Contact between the knuckle tail portion and lock is delayed until there is sufficient area of the knuckle tail portion under the lock to support the lock~ As is well. k.nown, at this poi.nt the lock is lifted from lockset and supported by the knuckle tail portion. If the area for support were not suficient, the lock could inadvertently drop ~o its locking posi.tionO
Secondly, tilting the lock ~owardsthe guard arm side of the coupler head increases a space between the lock and knuckle tai.l portion. By increasing the space, a small lS Inov~ ent of the knuckle will not result in the knuckle tail portion cont acti.ng the loc~c~ Such contact could dislodge the lock Erom lockset w~erein the ].ock would drop to :its ~I.ocki.ng posit:ion in the l.oc~ chamber. Thus, by increasing ~IIQ sE)ace be~ween the knuckle tail portion and the lock as we.l.l .~s i.ncreas.inc~ the relative heig}lt: of the 1ower edge of ~h~ l.ock with respec~. to the knuckl.e ~ail poxtion, the operating difficulty noted above is substan~ially eliminated~
As an adcll tional benefit, the lock is also easier to Labricate. The lock, preferably being cast, should include surfaces with a draft to allow ready removal from its mold set. The sloped portion of the lockset seat of the lock will preferably he correc-tly drafted to promote release of -the lock~
DE_C_RIPTIO~ OF T~-~ DRAWINGS
FIG. l is an elevational ~iew in cross section of a Type-E railroad car coupler '..~ac. with a knuckle of the coupler head closed and loc,;~ed.
FIG. 2 is an ele~a-tionai view in cross section of the coupler head of FIG. l wherein rhe knuckle remains closed but is not locked in that a lock of the coupler head has been placed :in its lockse-t posi.tion.
FIG. 3 is an elevational view in cross sect.ion of the coupl.er head of F~G. l wherein the knuckle has moved toward i1;s open posi.tion and as a .result the lock has ~ee~n lifted from its lockset position.
F'IG. 4 is a plan view in cross section of the coupler head as seen generally along the line 4-4 of FIGS~ 1 and 3.
~ 'IG. 5 i.s a simplified elevational view showing the rel.ationship of a portion of the lock to a tai.l portion of the knuc}~le as seen generally along the line 5-5 of E'IG. 2.
~ IG. 6 is a guard arm si.d~ elevati.onal view of t.he lock used i.n the co~lpler of FIGS. 1-4.
E'IG. 7 is a simplified rear elevational view of the coupler head ].ock as engaged with a knuckle thrower of t,he eoupler head.
DESCRlPTION OF T~E PREFERRED _MBODIMENT
A Type-E railroad car coupler head is shown generally in FIGS. 1-4 and desisnated lO~ The coupler head lO is carried at the end of an elongated shank 12 shown in part.
'.'5 The shank l~ woula be connected to d bod~ of a railroad car ~not shown) in a known manner.
Th~ coupler h_ad 10 inclu~es a knuckle 14 pivotally carried on a pin 15 which in turn is supported between spaced upper and lower lugs 18, 20. As seerl in ~IG~ 1, the knuckle 14 is in a closed and locked positio~. In this osi-ion, movement of the knuckle 14 is inhibited by inter-e-rence with a lock 22 carried within a vertical lock chamber 24 formed within the couplex head 10. As shown thc lock 22 is in a lowermost position within the chamber 24.
In this lowermost locking position, a knuckle shelf seat 26 of the lock 22 ~ests on a lock shelf 28 Eormed as part of a tail portion 30 of the knuckle 14. As best seen in FIG. 4, the tail portion 30 is located substantially within the coupler head 10. The knuckle tail portion 30 has a vertical locking face 32 which is located to engage a lockiny face 34 of the lock 22 to prevent rotation of the knuckJe 14 from its closed posi.tion.
As seen in FIGS. 2 and 5, the lock 22 has been raised to its lockse-t position by a lock lift assembly 36. The ~lssembly :36 comprises a series of joined linXs which connect W:i.til a lec~ 38 oE the lock 22. The leg 38 of the lock 22 il~Cltldes a lockset seat 40 which engages a leg lock seat portion 42 of a knuckle thro~er 44 to support the lock 22.
In the lockset posi-tion, the lock 22 is raised sufficiently to allow the knuckle tail portion 30 of the knuckle 14 to ~5 swing under a lo~er knuckle side edge 46 fo med at a joinder of the knuçkle shelf seat ~6 and the locking façe 34 of the loc~ 22.
Note that the lockset seat 40 or the lock 22 is longi-tudinally downwardly and inwardly sloped, i.e~ toward the knuckle .thrower 4~ as best seen in r-IG. 5 This conrigura-tion hsl?s to maintai.n the lockset sia~ c~O on the leg lock seat A 2 of the thrower 44 As shown .~ I . 7, the thrower leg ~2 has a slight upward slope ~frGr~ l_S -runnion pin As 8.
m-he lockset seat 40 of the loc}c ~ is divided into knuckle side portion 50 and a gu2rd arm side ?ortion 52.
The guard arm side portion 52 laterally is upwardly and outw~rdlv sloped from a point S4 at which the two portio1ls SO, 52 join.
:lO The lock 22 is fa~ricated by casti.ng. A cope and drag rorm a mold set in which the lock 22 is cast. The~poillt 54 is located to su~stantiall~ align wit.h a parting line B-B
formed by the mold set parts. Thus, the sloped guard arnt portion 52 provides a clesired draft to promote removal of 1.5 the lock 22 from the mold set.
The point 54 also lies on the knuckle side of a center of: gravltv of the lock 22. Thus, when the lockse1^ seat 40 of the lock 22 en(3c1ges the ley lo~k seat 42 of the 1cn1lckle rowe.r ~, 1he engct(Jemerlt is substanti-llly limited to t.he ~arcl .~r.111 portion 52 of the lockse-t seat 40. The slope of e ~ucl:rd arm portio1t 52 is suffi.cien~ to offse-t the 510pe ~t^ t:1e thrower leg lock seat 42. A.s seen in FIG. 7, the lock 22, therefore, is slightly til-ted toward a guard arm side portion 56 of the coupler head lO.
~5 This g11~ard arm tilt of the lock 22 produces a space 58 between the lower knuckle si~e edge 46 of the lock 22 and an pper kntlckle tail portion edge 60 deLining a ~oinder o-f an ~p?er su-;face 62 of the knuckle tail portion 30 and the ~nuckle t~il portion locking face 32. This spâce 53 insures ~6--that a slight movement of the knuckle 14 will no-t result in contact between the knuckle tail portion 30 and the lock 22.
Such contact could jar the lock 22 from its lockset positlon whexein the lock 22 would drop to i-ts locking posi-tion as seen in FIG. 1.
When the knuckle 14 is in its closed position, i.eO the knuckle 14 defined by solid lines in FIG. 4, a nose 64 of the knuckle 14 is a dis-tance D from a guard arm face 66 of the coupler head 10. Under AAR standards, the distance D
must proximate 4-5/8 inches. As the knuckle 14 swings toward its open position, the nose 64 of the knuckle 14, i.e. the knuckle 14 defined by bxoken lines in FIG. 4, should be a distance J from the guard arm face 66 before contact is made between the knuckle shelf seat 26 o-f the lock 22 and the upper surface 62 of the knuckle -tail portion 30. Upon contact, the knuc}cle tail portion 30 lifts the loc]c 22 from its ].ockse-t pOSitiO}I. AAR standards set this d1stance J be-tween 5--1/4 and 6 inches wherein the knuckle 14 l1as rotated proximately 12 degrees. ~he guard arm -til-t of ~0 the lock 22 raises the lower eclge 46 of the lock 22 wlth re.sp~c-t to the uppe:r edge 60 of the knuc]cle tail portion 30 insuring that the contact noted above is not premature.
Thus, upon contact between the knuckle tail portion upper surface 62 and the knuckle shelf seat 26 of the lock 22, there is su~ficie~-t area of the knuckle tail portion upper surface 6 under the lock 22 to properly suppor-t such.
While various modifications may be suggested by those versed in the art, i-t should be understood that I wlsh to embody wi. ~hin -~he scope c):E the 2a tellt ~arr~nted hereon all such modi.fications as reasonably and ~.roperly come within the scope Of T~y csn, ributi.on to -~he art.
Claims (3)
PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. In a railroad coupler having a coupler head having a guard arm side and a knuckle side including a knuckle swingable about a vertical axis, a tail portion extending from said knuckle, a coupler lock positioned within a vertical lock chamber formed within said coupler head between said guard arm side and said knuckle side, said coupler lock being movable within said chamber from a locking position wherein said lock is in the path of movement of said tail portion knuckle to maintain said knuckle in a closed position, a knuckle thrower having a leg lock seat, said lock having a lock set seat in engagement with said knuckle leg lock seat when moved to an unlocked position whereby said knuckle is free to swing toward an open position, the improvement comprising, said lockset seat of said lock being divided laterally into a guard arm side portion and a knuckle side portion, said guard arm side portion being laterally sloped to engage with said knuckle thrower leg lock seat to tilt said lock toward said guard arm side of said coupler head thereby to minimize the spacing between said lock and said knuckle tail portion and reduce inadvertent contact between said lock and said knuckle tail portion.
2, A coupler for a railroad car comprising, a Type-E coupler head, a swingable knuckle attached by a pivot pin carried by spaced lugs formed as part of said coupler head, a vertical lock chamber formed within said coupler head with a tail portion of said knuckle disposed within said chamber and horizontally rotatable therein, a knuckle thrower pivotally carried within said coupler head adjacent to a lock chamber on a side opposite said knuckle tail portion, a lock disposed within said lock chamber and including a lockset seat for engagement at a lockset position with a leg lock seat of said thrower, said lockset seat of said lock being laterally sloped to place said lock in an out-of-square position with respect to said thrower leg lock seat to raise a lower knuckle side edge of said lock with respect to an upper knuckle tail portion edge of said knuckle tail portion, wherein at said lockset position as said knuckle swings from a closed position toward an open position, a sufficient area of an upper surface of said knuckle tail portion passes under a knuckle shelf seat of said lock to support said lock upon said upper surface of said knuckle tail portion contacting said lock knuckle shelf seat to lift said lock from said lockset position.
3. A coupler as defined by claim 2 and further characterized by, said lockset seat of said lock being divided into a guard arm side portion and a knuckle side portion, said portions joining at a point located between a vertical plane passing through a center of gravity of said lock and a knuckle side portion of said lock, said guard arm side portion being selectively upwardly and outwardly sloped, wherein said guard arm side portion of said lockset seat of said lock engages said thrower leg lock seat when said lock is at said lockset position with said lock being tilted toward a guard arm side of said coupler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000411553A CA1195660A (en) | 1982-09-16 | 1982-09-16 | Type-e railroad car coupler head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000411553A CA1195660A (en) | 1982-09-16 | 1982-09-16 | Type-e railroad car coupler head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1195660A true CA1195660A (en) | 1985-10-22 |
Family
ID=4123596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000411553A Expired CA1195660A (en) | 1982-09-16 | 1982-09-16 | Type-e railroad car coupler head |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1195660A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9114815B2 (en) | 2013-03-14 | 2015-08-25 | Brandt Road Rail Corporation | Assembly for extendable rail-supported vehicle coupler |
-
1982
- 1982-09-16 CA CA000411553A patent/CA1195660A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9114815B2 (en) | 2013-03-14 | 2015-08-25 | Brandt Road Rail Corporation | Assembly for extendable rail-supported vehicle coupler |
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| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |