US491134A - -richards - Google Patents

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US491134A
US491134A US491134DA US491134A US 491134 A US491134 A US 491134A US 491134D A US491134D A US 491134DA US 491134 A US491134 A US 491134A
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jaw
lock
arm
coupling
shifting
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
    • B61G3/00—Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements
    • B61G3/04—Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements with coupling head having a guard arm on one side and a knuckle with angularly-disposed nose and tail portions pivoted to the other side thereof, the nose of the knuckle being the coupling part, and means to lock the knuckle in coupling position, e.g. "A.A.R." or "Janney" type

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  • This invention relates to that class of twin car couplers which comprise a swinging coupling jaW or knuckle, an automatic lock for retaining the jaw in its Closed or coupled position and means for kicking or throwing the jaw to its open position when released by the lock.
  • various means have been employed for that purpose with a view of positively and reliably Opening the coupling jaw in the act of unlocking it.
  • an elbow lever swinging in a horizontal plane in the draw head, and having its arms so arranged that upon withdrawing the lock from engagement with the locking arm of the jaw, the latter is thrown to its open position, while upon closing the open jaw, the lock is swung into engagement with its locking arm.
  • one of the arms of the shifting lever is arranged .on the rear side of the lock, and the other on the rear side of the locking arm of the coupling jaw, and in order to unsloped in theproper direction to produce the desired movement.
  • This arrangement of the shifting lever is unsatisfactory, because when the parts are of such dimensions as to permit the draw head to be constructed upon the standard lines, commonly adopted for car couplers of this type, the stroke of the shifting lever is too short to swing out the jaw Vpositively for a sufficient distance to insure its interlocking with the coupling jaw of an opposing car, the principal portion of its opening movement being dependent on the momentum received by it, which is however, unreliable and insulcient in case the operating chain of the lock is pulled slowly or gradually so that the devices operate successfully only when the lock is shifted with a quick impulse. Furthermore the continued backward movement of the lock against its incline after it has cleared the arm ofthe coupling jaw produces not only considerable friction, but
  • the object of my invention is to provide car couplers of this class with a simple and 7o powerful. shifting device which will positively open the coupling jaw a sufficient dis ⁇ tance to insure its proper engagementwith an opposing couplingjaw, without depending upon the momentum of the jaw to open it, g5 and whichis not liable to be broken by the coupling jaw when the latter is forcibly closed in coupling.
  • FIG. 1 is a longitudinal 8o sectional elevation of my improved coupling showing the coupling jaw in its closed or coupled position.
  • Fig. 2 is a cross section thereof in line 2-2 Fig. l, showing a similar position of the couplin g jaw.
  • Fig. 3 is a cross 85 section showing the lock raised sufliciently to unlock the couplingjaw, preparatory to Opening or kicking the jaw.
  • Fig. 4 is across section showing the position of the parts when the lock is raised vto its highest position in 9o which it aCt-uates the shifting device of the coupling jaw.
  • Fig. 5 is a horizontal section of the coupling, showing the parts in the position corresponding tothat shown in Figs.
  • Fig. 6 is a similar section, showing 95 the parts in the position corresponding to that shown in Fig. 3.
  • Fig. 7 is a similar section, with the parts in the position corresponding to that shown in Fig. 4.
  • Fig. 8 is a detached side elevation of the shifting device.
  • xoo Fig. 9' is a detached front view thereof.
  • Figs. 10, 11, and 12 are vertical longitudinal sections of the draw head on a reduced scale, showing in dotted lines the three different positions of the lock with relation to its inclines.
  • Fig. 13 is a modification of the coupling showing my improvement in connection with a vertically sliding lock.
  • Fig. le is another modified construction showing ⁇ the improvement applied to a coupling of the type, having a vertically swinging lock.
  • A is the drawhead which is preferably constructed in accordance with the commonly recognized standards or dimensions of such 15 couplings, and having the usual chamber or recess for receiving the movable parts of the coupler.
  • C is the usual lock or pawl which engages with the arm of the coupling jar for holding the same in its closed or coupled position and which is preferably arranged to swing horizon-tally in the drawhead.
  • D is the rearwardly rising incline arranged on the drawhead underneath the lock, for automatically moving it forwardly into engagement with the arm of the coupling jaw when the jaw is swung into its closed position
  • E is the upper incline-arranged on the drawhead above the lock, for swinging the same backward out of engagement with the locking arm of the coupling jaw in unlocking the jaw.
  • f is the chain attached to the lock whereby the same is raised and which is 'connected with a hand lever arranged on the end of the car in a well known manner.
  • This shifting device is the shifting device whereby the coupling jaw is kicked or moved into its open position, afterbeing unlocked.
  • This shifting device consists of a horizontal rock shaft g arranged in the-upper portion of the chamber of the draw head on the same side as the coupling jaw, a substantially horizontal actuating arm g arranged on this shaft and extending laterally into the vertical path of travel of the lock and a shifting arm or linger g2 extending 5o downward from the rock shaft in a substantially vertical position and standing, when in its normal position, between the rear side of the locking arm of the coupling jaw, and the adjacent inner wall of the drawhead, as most clearly shown in Figs. l and 2.
  • the rock shaft g is preferably journaled at its inner end in a closed bearing h, and at its outer end in an upwardly open bearing h both formed on the adjacent wall of the drawhead,
  • the shifting finger g2 when in its normal depending position, occu- 6 5 piesa verticalpocket or recess g3 formed in the adjacent wall preferably by vertical ribs g4 which proj ectinwardly beyond the inner edge Vof the shifting finger when in its vertical position, so as to protect the nger from the blowr of the arm of the coupling jaw'when the latter is forcibly swung from its open to its closed position.
  • the lock thus rises freely as soon as it has cleared the locking arm of the hook, and has no further contact with its incline, thereby exerting a direct pull upon the jaw shifting device, without encountering undue. friction and enabling the jaw to be opened with greater ease.
  • the shifting finger returns by gravity to its former pendent position in which it is guarded by the protecting ribs so that when the open coupling jaw is violently swung to its locked position by the blow of an opposing coupler, its arm will not strike the depending shifting linger, whereby breakage of the linger is obviated.
  • the lock is provided onits front side I If it is desired to simply unlock the 4coupling hook to uncouple the car, Without using the shifting mechanism, the lock is only raised suihciently to clear the arm of the coupling jaw as shown in Figs. 3 and 6. and held there by the usual retaining bracket or devices on the car which are commonly used for that purpose.
  • My improved shifting device is not only direct in its action and easily operated, but its peculiar construction and arrangement enable its shifting arm to be made so long as to insure a sufficient outward movement of the coupling ⁇ jaw to permit it to reliably interlock with the jaw of an opposing coupling, irrespective of whether the shifting device receives a slow or a quick impulse.
  • This construction also enables the linger to be thus lengthened Without requiring a construction of the draw head which departs from the essential lines and dimensions commonly adopted for couplers of this class.
  • my improved shifting mechanism is very simple and inexpensive as the actuating arm and shifting finger may be cast complete with the rock shaft andthe bearings of the latter are cast with the draw head.
  • the shifting device moreover has no loose parts which are liable to become lost.
  • a vertically sliding lock J is employed instead of a horizontally swinging with a lug or projection j into the path of which the actuating arm of the shifting device extends and which strikes said arm on being pulled upward.
  • Fig. 14 shows the application of my improved shifting device to a coupling having a vertically swinging lock, which is pivoted at its rear end by a horizontal pin.
  • the lock when raised sufficientlyy strikes the actuating arm with its free front Vend, thereby opening the coupling jaw.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Buckles (AREA)

Description

(No Model.) 3 Sheets--Shet l. v
W. F. RICHARDS.
VGAR GDUPLING.
No. 491,134. Patented Feb. 7, 189,3.
w f/g .CWM
g `\\\\\\\\\`l j 'K5' l Il sl 1E g lll jvc? f7 s l5 ill i I M lll =T=HIM il# lli" (No Model.) v3 Smets-Sheet 2.
W. 1". RICHARDS. GAR' GOUPLING.
No. 491,134. Patente Peb. 7, 1893.
(No Model.) Y 3 Sheets-Sheet 3. I
W. P. RICHARDS.
GAR GOVUPLING. No'. 491,134.
Patented Feb;V 7,1893.
e/S I UNITED STATES PATENT UEEICE.
WILLARD E. RICHARDs, OE BUFFALO, AssIeNOR `To THE cro-ULD COUPLER COMPANY, or NEW YORK, N. Y.
CAR-COUPLING.
SPECFICATION forming part of Letters Patent No. 491,134, dated February '7, 1893.
Application filed December 13, 1892. Serial No. 455,035. (No model.)
To a/ZZ whom it may concern:
Be it known that I, WILLARD F. RICHARDS, a citizen of the United States, residing at the city of Buifalo, in the county of Erie and State of New York, have invented a new and useful Improvement in Car-Couplings, of which the following is a specication.
This invention relates to that class of twin car couplers which comprise a swinging coupling jaW or knuckle, an automatic lock for retaining the jaw in its Closed or coupled position and means for kicking or throwing the jaw to its open position when released by the lock. Prior to my invention various means have been employed for that purpose with a view of positively and reliably Opening the coupling jaw in the act of unlocking it. Among others has been used an elbow lever, swinging in a horizontal plane in the draw head, and having its arms so arranged that upon withdrawing the lock from engagement with the locking arm of the jaw, the latter is thrown to its open position, while upon closing the open jaw, the lock is swung into engagement with its locking arm. In this construction one of the arms of the shifting lever is arranged .on the rear side of the lock, and the other on the rear side of the locking arm of the coupling jaw, and in order to unsloped in theproper direction to produce the desired movement. This arrangement of the shifting lever is unsatisfactory, because when the parts are of such dimensions as to permit the draw head to be constructed upon the standard lines, commonly adopted for car couplers of this type, the stroke of the shifting lever is too short to swing out the jaw Vpositively for a sufficient distance to insure its interlocking with the coupling jaw of an opposing car, the principal portion of its opening movement being dependent on the momentum received by it, which is however, unreliable and insulcient in case the operating chain of the lock is pulled slowly or gradually so that the devices operate successfully only when the lock is shifted with a quick impulse. Furthermore the continued backward movement of the lock against its incline after it has cleared the arm ofthe coupling jaw produces not only considerable friction, but
v causes the pull on the lock to be exerted upon the lever in an indirect manner, which renders the action of the shifting device hard. 6o The construction referredl to is furthermore objectionable, because the shifting arm of the lever, after opening the jaw is liable to remain in the path of this arm, so that in case L the coupling jaw, when open, receives a sharp impulse by striking an opposing jaw in coupling, the blow is liable to break the shifting arm of the lever. p
The object of my invention is to provide car couplers of this class with a simple and 7o powerful. shifting device which will positively open the coupling jaw a sufficient dis` tance to insure its proper engagementwith an opposing couplingjaw, without depending upon the momentum of the jaw to open it, g5 and whichis not liable to be broken by the coupling jaw when the latter is forcibly closed in coupling.
In the accompanying drawings consisting of three-sheetsz-Figure 1 is a longitudinal 8o sectional elevation of my improved coupling showing the coupling jaw in its closed or coupled position. Fig. 2 is a cross section thereof in line 2-2 Fig. l, showing a similar position of the couplin g jaw. Fig. 3 is a cross 85 section showing the lock raised sufliciently to unlock the couplingjaw, preparatory to Opening or kicking the jaw. Fig. 4 is across section showing the position of the parts when the lock is raised vto its highest position in 9o which it aCt-uates the shifting device of the coupling jaw. Fig. 5 is a horizontal section of the coupling, showing the parts in the position corresponding tothat shown in Figs. l and 2. Fig. 6 is a similar section, showing 95 the parts in the position corresponding to that shown in Fig. 3. Fig. 7 is a similar section, with the parts in the position corresponding to that shown in Fig. 4. Fig. 8 is a detached side elevation of the shifting device. xoo Fig. 9'is a detached front view thereof. Figs. 10, 11, and 12, are vertical longitudinal sections of the draw head on a reduced scale, showing in dotted lines the three different positions of the lock with relation to its inclines. Fig. 13 is a modification of the coupling showing my improvement in connection with a vertically sliding lock. Fig. le is another modified construction showing` the improvement applied to a coupling of the type, having a vertically swinging lock.
ro Like letters of reference refer to like parts in the several figures.
A is the drawhead which is preferably constructed in accordance with the commonly recognized standards or dimensions of such 15 couplings, and having the usual chamber or recess for receiving the movable parts of the coupler.
- Bis the coupling jaw or knuckle pivoted by an upright pin b to the forwardly projectzo ing bifurcated arm 0L of the drawhead and having the customary locking arm b.
C is the usual lock or pawl which engages with the arm of the coupling jar for holding the same in its closed or coupled position and which is preferably arranged to swing horizon-tally in the drawhead.
D is the rearwardly rising incline arranged on the drawhead underneath the lock, for automatically moving it forwardly into engagement with the arm of the coupling jaw when the jaw is swung into its closed position and E is the upper incline-arranged on the drawhead above the lock, for swinging the same backward out of engagement with the locking arm of the coupling jaw in unlocking the jaw.
f is the chain attached to the lock whereby the same is raised and which is 'connected with a hand lever arranged on the end of the car in a well known manner.
4o e VG is the shifting device whereby the coupling jaw is kicked or moved into its open position, afterbeing unlocked. This shifting device consists of a horizontal rock shaft g arranged in the-upper portion of the chamber of the draw head on the same side as the coupling jaw, a substantially horizontal actuating arm g arranged on this shaft and extending laterally into the vertical path of travel of the lock and a shifting arm or linger g2 extending 5o downward from the rock shaft in a substantially vertical position and standing, when in its normal position, between the rear side of the locking arm of the coupling jaw, and the adjacent inner wall of the drawhead, as most clearly shown in Figs. l and 2. The rock shaft g is preferably journaled at its inner end in a closed bearing h, and at its outer end in an upwardly open bearing h both formed on the adjacent wall of the drawhead,
6o so that the rock shaft can be readily introduced .into its bearings and removed therefrom. The shaft is held in place in its open bearing by its weight. The shifting finger g2 when in its normal depending position, occu- 6 5 piesa verticalpocket or recess g3 formed in the adjacent wall preferably by vertical ribs g4 which proj ectinwardly beyond the inner edge Vof the shifting finger when in its vertical position, so as to protect the nger from the blowr of the arm of the coupling jaw'when the latter is forcibly swung from its open to its closed position.
In the normal locked position of the coupling jaw, shown in Figs. l, 2, and 5, the lock is engaged with the arm of the jaw and the actuating arm of the shifting device stands above the lock and the shifting finger behind the locking arm of the coupling jaw. When the coupling jaw is in this position and it is desired to kick or throw it to its open position, the lock is raised by the usual mechanism to `the limit of its upward movement as shown in Figs. 4 and 7. During the first portion of this upward movement the swinging lock is raised against the upper incline E of the drawhead, which latter causes the lock to swing backward until it clears the locking arm of the coupling jaw, while-during the latter part of its upward movement the lock strikes the actuating arm g of the rock shaft g and swings the said arm upwardly into the position shown in Fig. 4r. This movement of the arm causes the rock shaft to turn in the IOO out of engagement with the vjaw arm, so that as soon as this has been effected the lock is no longer moved backward on the incline,but moves directly upward and strikes the actuating arm of the rock shaft. The lock thus rises freely as soon as it has cleared the locking arm of the hook, and has no further contact with its incline, thereby exerting a direct pull upon the jaw shifting device, without encountering undue. friction and enabling the jaw to be opened with greater ease. When the jaw has been thrown to its open position and the locking pawl is dropped the shifting finger returns by gravity to its former pendent position in which it is guarded by the protecting ribs so that when the open coupling jaw is violently swung to its locked position by the blow of an opposing coupler, its arm will not strike the depending shifting linger, whereby breakage of the linger is obviated. This inger is longerand heavier than the actuating arm of the rock shaft and will therefore with the aid of the weight of the overhanging actuating arm return automatically to its normal hanging position. When the coupling jaw swings inwardly to its locked position its locking arm swings the lock backward on its lower incline and as soon as the locking arm passes inwardly beyond the free end of the lock, the latter rides down its incline and automatically interlocks with the arm of the coupling jawin the usual manner.
ITO
one and the lock is provided onits front side I If it is desired to simply unlock the 4coupling hook to uncouple the car, Without using the shifting mechanism, the lock is only raised suihciently to clear the arm of the coupling jaw as shown in Figs. 3 and 6. and held there by the usual retaining bracket or devices on the car which are commonly used for that purpose.
My improved shifting device is not only direct in its action and easily operated, but its peculiar construction and arrangement enable its shifting arm to be made so long as to insure a sufficient outward movement of the coupling` jaw to permit it to reliably interlock with the jaw of an opposing coupling, irrespective of whether the shifting device receives a slow or a quick impulse. This construction also enables the linger to be thus lengthened Without requiring a construction of the draw head which departs from the essential lines and dimensions commonly adopted for couplers of this class.
The construction of my improved shifting mechanism is very simple and inexpensive as the actuating arm and shifting finger may be cast complete with the rock shaft andthe bearings of the latter are cast with the draw head. The shifting device moreover has no loose parts which are liable to become lost.
In the modified form of my invention illustrated in Fig. 13, a vertically sliding lock J is employed instead of a horizontally swinging with a lug or projection j into the path of which the actuating arm of the shifting device extends and which strikes said arm on being pulled upward.
Fig. 14,shows the application of my improved shifting device to a coupling having a vertically swinging lock, which is pivoted at its rear end by a horizontal pin. In this case the lock when raised sufficientlyy strikes the actuating arm with its free front Vend, thereby opening the coupling jaw.
I claim as my invention:
1. The combination with the draw head, the
coupling jaw, and its lock, of a shifting device for opening the jaw, having an actuating arm, projecting into the path of the lock and `coupling jaw, having a locking arm and the movable lock, of a rock shaft journaled in the draw head, having an actuating arm arranged in the path of the movable lock and a depending arm which engages against the looking arm and throws the jaw to its open position when unlocked, substantially as set forth.
3.y The combination with the draw head and the coupling jaw having alocking arm and the vertically movable lockfor holdingthe. jaw in its closed position of a horizontal rock shaft journaled in the draw head and having a horizontal arm arranged above the verticallyV movable lock and in the path thereof, anda depending shifting nger, arranged on the rear side of the locking arm of the coupling, jaw, substantially as set forth.
, 4. The combination with the draw head and the coupling jaw, having a locking arm, and the lock, of a shifting device having an arm projecting into the path of the lock, and a depending shifting linger engaging against the locking arm of the jaw, and a guard which protects the shifting finger from the blow of the jaw, substantially as set forth.
Witness my hand this 10th day of December, 1892. c
WILLARD F. RICHARDS.
Witnesses: y f
CARL F. GEYER, JNO. J BoNNER.
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