US798743A - Railway-gate. - Google Patents

Railway-gate. Download PDF

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Publication number
US798743A
US798743A US24273905A US1905242739A US798743A US 798743 A US798743 A US 798743A US 24273905 A US24273905 A US 24273905A US 1905242739 A US1905242739 A US 1905242739A US 798743 A US798743 A US 798743A
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Prior art keywords
dog
head
lever
gate
bar
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US24273905A
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Isaac Mead
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61LGUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L11/00Operation of points from the vehicle or by the passage of the vehicle
    • B61L11/02Operation of points from the vehicle or by the passage of the vehicle using mechanical interaction between vehicle and track

Definitions

  • munzw I cnuuu cu. mmunuammus. msnmavon, a c
  • the object of this invention is to provide a gate at the crossing of thoroughfares and railroads which is lowered by the wheels of the cars, also released to assume its open position.
  • Figure l is an elevation in which the gate is shown open in solid lines and closed in dotted lines.
  • Fig. 2 is a section on dotted line 1/ a
  • Fig. 3 is a plan view with the gate in its open position.
  • Fig. A is a perspective view of the retaining-dog.
  • Fig. 5 is a perspective view of the actuating-dog.
  • Fig. 6 is a perspective view of the tilting head.
  • Fig. 7 is a section through the. supports for the trip-lever.
  • the main support 1 in this instance is connected to a base 2.
  • An arm 3 extends from the support and has a roller at at its free end.
  • To the base 2 is secured a standard 5, having a bent-over end 6.
  • a pivot-rod 7 extends from the standard 5 to the main support.
  • a tilting head 8 Upon the pivot-rod T is supported a tilting head 8.
  • This tilting head has a ratchettoothed wheel 9 secured to its rear face, and a ratchet-toothed wheel 10 is rigidly secured to its front face.
  • the ratchet-toothed wheel 10 is hold some distance from the face of the tilting head by the collar 11.
  • the lower end of the tilting head is provided with a weight 12.
  • a latch 13 To the tilting head is pivoted a latch 13, which is yieldingly held in position by the spring 1 t. The free end of the latch rests in contact with the plate 15.
  • a retaining-dog 16 To the main support 1 is pivoted a retaining-dog 16, which engages the teeth of the ratchet toothed wheel 9 and has an arm 17 extending therefrom.
  • a spring 18 connects the dog with the main support-and holds the dog yieldingly in engagement with the ratchet-toothed wheel 9.
  • a three-armed lever 19 is pivotally supported by the bracket 20, secured to the base Two arms of this threearmed lever have a connection with the retaining-dog 16 by the chains 21.
  • a chain 22 has a connection with the depending arm of the three-armed lever, and the other end of the chain has a connection with the trip-lever 23.
  • This triplever is in crank form and has an upwardlyrail 25 of a railroad.
  • a coiled spring 26 has a-connection with the trip-lever 23, and its other end is connected to a stationary support.
  • a bar 27 has one end pivotally connected to a support 28, rising from the base 2. To the free end of this bar is pivotally connected an actuating-dog 29, having its free upper hooked end adapted to engage the teeth of the ratchet-toothed wheel 10. This actuating-dog has a projection 30 extending from its hooked end.
  • a spiral spring 31 connects the bar 27 and standard 5, and a spring 32 connects the dog and bar.
  • a threearmed lever is pivotally supported by a bracket 3st, secured to the base. Two of the arms of this three-armed lever haveaconnection with the free end of the bar 27 by the chains 35.
  • a chain 36 has a connection with the depending arm of this three-armed lever 33, and the other end of the chain has a connection with the trip-lever 37.
  • This trip-lever is in crank form and has an upwardly-extending arm 38, which is located near the rail 25 of a railroad.
  • a coiled spring 39 has a connection with the trip-lever 37, and its other end is connected to a stationary support. To the lower end of the tilting headis pivoted an arm 40, the free end of the arm resting on the roller 1t.
  • an arm 4C1 To the upperend of the tilting head is pivoted an arm 4C1, which is limited in its movement by the loop 42.
  • the projection 30, extending from the actuating-dog, is located beneath the latch 13, and the arm 17, extending from the retaining-dog, is located inside of the actuating-dog.
  • the trip-lever 3T extending-M11121 which is located near the l is to be separated from the trip-lever 23 a greater distance than the length of a train.
  • the retaining-dog 16 will be raised free of the ratchet-toothed wheel 9 and the tilting head allowed to assume its normal position, the weight 12 acting to accomplish this purpose.
  • the object in pivoting the bar 41 is to allow it to rise should it strike an object.
  • the trip-lever 37 would be moved so as to move the ratchettoothed wheel 10 one tooth, and it would be immediately released by the arm 17 of the retaining-dog engaging the actuating-dog and disengaging it from its ratchet-toothed wheel 10, thereby allowing the tilting head to drop into its normal position.
  • a railway gate comprising atilting head, bars movable by the head, a ratchet-toothed wheel supported by the head, a dog for moving the head by engaging the ratchet-toothed wheel, a movable latch, a retaining-dog, and devices whereby both dogs will be operated by a moving train.
  • a railway-gate comprising a tilting head, bars movable by the head, two ratchet-toothed wheels and a movable latch supported by the head, a dog for each wheel, and devices wh'ereretaining-dog, a weight supported by the head,
  • Arailway-gate comprising atilting head, two bars movable by the head, two ratchettoothed wheels, a dog for each wheel, one of the dogs provided with an arm arranged to move the other dog, and devices whereby both dogs will be operated by a moving train.
  • a railway-gate comprising a tilting head, a bar movable by the head, the bar having a pivotal connection with the head, a roller guiding the bar, and devices whereby the head is operated by a moving train.
  • a railway gate comprising atilting head, a bar movable by the head, the bar having a pivotal connection with the head, and a loop embracing the bar thereby limiting its movement.

Description

No. 798,743. PATENTED SEPT. 5, 19051 I. MEAD.
RAILWAY GATE.
APPLIOATION rum; JAN.26,1905.
munzw I cnuuu cu. mmunuammus. msnmavon, a c
ISAAC MEAD, OF DUKAND, \VISCONSIN.
RAILWAY-GATE Specification of Letters Patent.
Patented Sept. 5, 1905.
Application filed January 26,1905. Serial No. 242,739.
Be it known that 1, Isaac MEAD, a citizen of the United States, residing at Durand, in the county of Pepin and State of Visconsin, have invented certain new and useful Improvements in Railway-Gates, of which the following is a specilication.
The object of this invention is to provide a gate at the crossing of thoroughfares and railroads which is lowered by the wheels of the cars, also released to assume its open position.
In the accompanying drawings, Figure l is an elevation in which the gate is shown open in solid lines and closed in dotted lines. Fig. 2 is a section on dotted line 1/ a, Fig. 3. Fig. 3 is a plan view with the gate in its open position. Fig. A is a perspective view of the retaining-dog. Fig. 5 is a perspective view of the actuating-dog. Fig. 6 is a perspective view of the tilting head. Fig. 7 is a section through the. supports for the trip-lever.
The main support 1 in this instance is connected to a base 2. An arm 3 extends from the support and has a roller at at its free end. To the base 2 is secured a standard 5, having a bent-over end 6. A pivot-rod 7 extends from the standard 5 to the main support. Upon the pivot-rod T is supported a tilting head 8. This tilting head has a ratchettoothed wheel 9 secured to its rear face, and a ratchet-toothed wheel 10 is rigidly secured to its front face. The ratchet-toothed wheel 10 is hold some distance from the face of the tilting head by the collar 11. The lower end of the tilting head is provided with a weight 12. To the tilting head is pivoted a latch 13, which is yieldingly held in position by the spring 1 t. The free end of the latch rests in contact with the plate 15. To the main support 1 is pivoted a retaining-dog 16, which engages the teeth of the ratchet toothed wheel 9 and has an arm 17 extending therefrom. A spring 18 connects the dog with the main support-and holds the dog yieldingly in engagement with the ratchet-toothed wheel 9. A three-armed lever 19 is pivotally supported by the bracket 20, secured to the base Two arms of this threearmed lever have a connection with the retaining-dog 16 by the chains 21. A chain 22 has a connection with the depending arm of the three-armed lever, and the other end of the chain has a connection with the trip-lever 23. This triplever is in crank form and has an upwardlyrail 25 of a railroad. A coiled spring 26 has a-connection with the trip-lever 23, and its other end is connected to a stationary support. A bar 27 has one end pivotally connected to a support 28, rising from the base 2. To the free end of this bar is pivotally connected an actuating-dog 29, having its free upper hooked end adapted to engage the teeth of the ratchet-toothed wheel 10. This actuating-dog has a projection 30 extending from its hooked end. A spiral spring 31 connects the bar 27 and standard 5, and a spring 32 connects the dog and bar. A threearmed lever is pivotally supported by a bracket 3st, secured to the base. Two of the arms of this three-armed lever haveaconnection with the free end of the bar 27 by the chains 35. A chain 36 has a connection with the depending arm of this three-armed lever 33, and the other end of the chain has a connection with the trip-lever 37. This trip-lever is in crank form and has an upwardly-extending arm 38, which is located near the rail 25 of a railroad. A coiled spring 39 has a connection with the trip-lever 37, and its other end is connected to a stationary support. To the lower end of the tilting headis pivoted an arm 40, the free end of the arm resting on the roller 1t. To the upperend of the tilting head is pivoted an arm 4C1, which is limited in its movement by the loop 42. The projection 30, extending from the actuating-dog, is located beneath the latch 13, and the arm 17, extending from the retaining-dog, is located inside of the actuating-dog.
If the train is passing in the direction indicated by the arrow in Fig. 3, the wheels will engage the upper end of the trip-lever 37,
thereby pulling through the chain connection on the three-armed lever 33, which in turn moves the arm 27 and actuating-dog, and will move the tilting head one tooth of the ratchettoothed wheelll). The retaining-dog will prevent the tilting head from returning. The next wheel of the train will move the tilting head another tooth of the ratchet-toothed wheel 10,and so on until the projection 30 of the actuating-dog will raise the latch and move in contact with its outer surface without moving the tilting head. This movement of the tilting head will place the bars 40 and 41 in the position shown in Fig. 3 and in the position shown in dotted lines, Fig. l. The bar tl is intended to reach over the street and the bar 40 to extend across the sidewalk. The trip-lever 3T extending-M11121, which is located near the l is to be separated from the trip-lever 23 a greater distance than the length of a train. When the first wheel of the train strikes the trip-lever 23, the retaining-dog 16 will be raised free of the ratchet-toothed wheel 9 and the tilting head allowed to assume its normal position, the weight 12 acting to accomplish this purpose. The object in pivoting the bar 41 is to allow it to rise should it strike an object.
Should the train be of a geater length than the distance between the trip-levers after the retaining-dog had been disengaged from the ratchet-toothed wheel 9, the trip-lever 37 would be moved so as to move the ratchettoothed wheel 10 one tooth, and it would be immediately released by the arm 17 of the retaining-dog engaging the actuating-dog and disengaging it from its ratchet-toothed wheel 10, thereby allowing the tilting head to drop into its normal position.
When the train is moving in the direction opposite to that shown by the arrow, the tilting levers will be depressed without operating the gate. The springs 26 and 39 will return the tilting levers to their normal positions.
I claim as my invention 1. A railway gate comprising atilting head, bars movable by the head, a ratchet-toothed wheel supported by the head, a dog for moving the head by engaging the ratchet-toothed wheel, a movable latch, a retaining-dog, and devices whereby both dogs will be operated by a moving train.
2. A railway-gate comprising a tilting head, bars movable by the head, two ratchet-toothed wheels and a movable latch supported by the head, a dog for each wheel, and devices wh'ereretaining-dog, a weight supported by the head,
and devices whereby both dogs will be operated by a moving train.
5. Arailway-gate comprising atilting head, two bars movable by the head, two ratchettoothed wheels, a dog for each wheel, one of the dogs provided with an arm arranged to move the other dog, and devices whereby both dogs will be operated by a moving train.
6. A railway-gate comprising a tilting head, a bar movable by the head, the bar having a pivotal connection with the head, a roller guiding the bar, and devices whereby the head is operated by a moving train.
7. A railway gate comprising atilting head, a bar movable by the head, the bar having a pivotal connection with the head, and a loop embracing the bar thereby limiting its movement.
ISAAC MEAD. Witnesses:
WM. E. PLUMMER, G. A. Gross.
US24273905A 1905-01-26 1905-01-26 Railway-gate. Expired - Lifetime US798743A (en)

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