US770305A - Switch. - Google Patents

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Publication number
US770305A
US770305A US21338704A US1904213387A US770305A US 770305 A US770305 A US 770305A US 21338704 A US21338704 A US 21338704A US 1904213387 A US1904213387 A US 1904213387A US 770305 A US770305 A US 770305A
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US
United States
Prior art keywords
switch
rails
tongue
shaft
chains
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
US21338704A
Inventor
William L O'brien
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Individual
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Individual
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Priority to US21338704A priority Critical patent/US770305A/en
Application granted granted Critical
Publication of US770305A publication Critical patent/US770305A/en
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Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
    • B61L5/02—Mechanical devices for operating points or scotch-blocks, e.g. local manual control

Definitions

  • This invention relates to railway-switches; and it has for its object to provide a construction wherein the usual cross-rails and frogs are dispensed with, a further object of the invention being to provide means for shifting the switch-rail and for holding the latter securely in its shifted positions.
  • Figure 1 is a top plan View showing a portion of a railway embodying the present invention.
  • Fig. 2 is a view similar to Fig. 1, showing the switch-tongue in its opposite position.
  • Fig. 3 is a transverse vertical section through the structure shown in Fig. 1.
  • FIG. 1 there is shown a portion of a railway, including maintrack rails and switch-rails.
  • the switch-rails are shown at 5 and 6 leading from one side of the main trackway, the rail at the far side from the switch being shown at 7 while the opposite main-track rail is shown in two sections 8 and 8.
  • the rails 6 and 8 meet at a sharp angle, and connected at their meeting ends is a switch-tongue 9, which is movable to aline with the rails 8 and 8 or to aline with the rail 6 and lie with its free end against the rail 7.
  • the rails are secured upon ties 1O in the usual manner, while the switch-tongue 9 is slidable upon the ties, the movement of the switch-tongue in opposite directions being limited by the stops 11 and 12, lying at opposite sides of the tongue and secured upon the ties.
  • the shaft 1 1 At opposite sides of the track are mounted horizontal shafts 13 and 14 in suitable bearings, the shaft 1 1 having pulleys fixed thereon, while the shaft 13 is provided with winding-drums 16 of different diameters.
  • a chain 17 is passed around each pulley 15 and beneath the rails and is wound several times around the corresponding drum 16.
  • Each of the chains is endless and is attached to the switch-tongue, so that as the shaft 13 is rotated in one direction the chains are moved to correspondingly move the switch-tongue to the corresponding limit of its movement.
  • the reason for making the winding-drums of different diameters is that the points of the switch-tongue to which the chains are attached move different distances.
  • the shaft 13 is provided with a pinion 18, with which meshes a gear-wheel 19, carried by a crank-shaft 20, having a crank -21 for operating it to shift the switch-tongue.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Curtains And Furnishings For Windows Or Doors (AREA)

Description

No. 770,305. PATENTED SEPT. 20, 1904 W. L. OBRIBN.
SWITCH.
APPLIOATION FILED JUNE 20, 1904.
N0 MODEL 2 SHEETS-SHEET 1.
' uveufoz Witnesses (1 Hot we 1 4/ PATENTED SEPT. 20, 190-4.
W. L. OBRIEN.
SWITCH.
APPLIOATION FILED JUNE 20, 1904.
2 SHEETS-SHEET 2.
N0 MODEL.
uweufoz 7% 03211272,
chm "n 5 UNITED STATES Patented September 20, 1904.
PATENT OFFICE.
SWITCH.
SPECIFICATION forming part of Letters Patent No. 770,305, dated September 20, 1904. Application filed June 20, 1904:. Serial No. 213,387- (No model.)
To all whom, it may concern:
Be it known that I, WILLIAM L. OBRIEN, a citizen of the United States, residing at N ewriver Depot, in the county of Pulaski, State of Virginia, have invented certain new and useful Improvements in Switches; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.
This invention relates to railway-switches; and it has for its object to provide a construction wherein the usual cross-rails and frogs are dispensed with, a further object of the invention being to provide means for shifting the switch-rail and for holding the latter securely in its shifted positions.
In the drawings forming a portion of this specification, and in which like numerals of reference indicate similar parts in the several views, Figure 1 is a top plan View showing a portion of a railway embodying the present invention. Fig. 2 is a view similar to Fig. 1, showing the switch-tongue in its opposite position. Fig. 3 is a transverse vertical section through the structure shown in Fig. 1.
Referring now to the drawings, there is shown a portion of a railway, including maintrack rails and switch-rails. The switch-rails are shown at 5 and 6 leading from one side of the main trackway, the rail at the far side from the switch being shown at 7 while the opposite main-track rail is shown in two sections 8 and 8. The rails 6 and 8 meet at a sharp angle, and connected at their meeting ends is a switch-tongue 9, which is movable to aline with the rails 8 and 8 or to aline with the rail 6 and lie with its free end against the rail 7. The rails are secured upon ties 1O in the usual manner, while the switch-tongue 9 is slidable upon the ties, the movement of the switch-tongue in opposite directions being limited by the stops 11 and 12, lying at opposite sides of the tongue and secured upon the ties.
At opposite sides of the track are mounted horizontal shafts 13 and 14 in suitable bearings, the shaft 1 1 having pulleys fixed thereon, while the shaft 13 is provided with winding-drums 16 of different diameters. A chain 17 is passed around each pulley 15 and beneath the rails and is wound several times around the corresponding drum 16. Each of the chains is endless and is attached to the switch-tongue, so that as the shaft 13 is rotated in one direction the chains are moved to correspondingly move the switch-tongue to the corresponding limit of its movement. The reason for making the winding-drums of different diameters is that the points of the switch-tongue to which the chains are attached move different distances.
The shaft 13 is provided with a pinion 18, with which meshes a gear-wheel 19, carried by a crank-shaft 20, having a crank -21 for operating it to shift the switch-tongue.
It will be noted that in the present construction no guard-rails are required.
What is claimed is The combination with main-track rails and switch-rails, of a switch-tongue movable with its free end to lie against the main-track rails interchangeably, a shaft at each side of the rails, pulleys carried by one of the shafts, winding-drums carried by the other of the shafts, chains passing round the pulleys and drums and wound upon the latter, said chains being attached each at one side to the switchtongue, and means connected with the drumshaft for rotating it.
In testimony whereof I affix my signature in presence of two witnesses.
WILLIAM L. OBRIEN.
Witnesses:
R. M. T. HUNTER, JNo. S. DRAPER, Jr.
US21338704A 1904-06-20 1904-06-20 Switch. Expired - Lifetime US770305A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US21338704A US770305A (en) 1904-06-20 1904-06-20 Switch.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US21338704A US770305A (en) 1904-06-20 1904-06-20 Switch.

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US770305A true US770305A (en) 1904-09-20

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US21338704A Expired - Lifetime US770305A (en) 1904-06-20 1904-06-20 Switch.

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210025115A1 (en) * 2016-09-12 2021-01-28 Dilson dos Santos Rodrigues Saborage-resistant switch device for moving railroad switch points

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210025115A1 (en) * 2016-09-12 2021-01-28 Dilson dos Santos Rodrigues Saborage-resistant switch device for moving railroad switch points
US12104331B2 (en) * 2016-09-12 2024-10-01 Mona Beaman Saborage-resistant switch device for moving railroad switch points

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