US956139A - Safety switch device. - Google Patents

Safety switch device. Download PDF

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Publication number
US956139A
US956139A US50484309A US1909504843A US956139A US 956139 A US956139 A US 956139A US 50484309 A US50484309 A US 50484309A US 1909504843 A US1909504843 A US 1909504843A US 956139 A US956139 A US 956139A
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United States
Prior art keywords
sleeve
rail
rod
point
switch
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
US50484309A
Inventor
John Alexander Mccain
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 L FLORENCE
Original Assignee
W L FLORENCE
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
Application filed by W L FLORENCE filed Critical W L FLORENCE
Priority to US50484309A priority Critical patent/US956139A/en
Application granted granted Critical
Publication of US956139A publication Critical patent/US956139A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L11/00—Operation of points from the vehicle or by the passage of the vehicle
    • B61L11/02—Operation of points from the vehicle or by the passage of the vehicle using mechanical interaction between vehicle and track

Definitions

  • This invention relates to a device for holding a switch point in close engagement with a main track rail, permitting the point to be forced from the rail by the flange of a car wheel and positively returning the point to its proper position after the wheels have passed over it.
  • the object of the invention is to positively connect the switch point and the main track rail together directly at the point and without placing the connecting means upon the top of a tie or in any other position where it would be in danger of being struck by a loose brake rod or by any other part of the train.
  • the invention consists of a sleeve ar ranged beneath the rail and the switch point,
  • the invention also includes means for adjusting the tension of said spring.
  • Figure 1 is a plan view of the device applied to a switch point.
  • Fig. 2 is a section on the line 22 of Fig. 1.
  • Fig. 3 is a similar section, the switch point being shown in the position it occupies when forced from the main track rail by the flange of a car wheel.
  • 1 represents a main track rail and 2 a switch point.
  • a sleeve 3 extends transversely beneath the rail and point and it is provided with an inwardly extending undercut shoulder 4 at its outer end which grips the base upon the outside of the rail 1.
  • a rod 5 provided at its inner end with a head 6 which head carries an inwardly extending tongue 7 which grips the Specification of Letters Patent.
  • a coil spring 8 is placed in the sleeve and around the rod 5 and bears against the inner end portion of the sleeve 3 and at the outer end against a collar 9 which is threaded upon the outer end portion of the rod 5, said collar having a squared portion 10 for engagement with a wrench, and said collar also works in the sleeve.
  • the switch point will be normally held against the rail 1 as shown in Fig. 2, but it can be forced away from said rail by the flange of a car wheel and into the position shown in Fig. 3, such movement compressing the spring 8, which spring will return the switch point to its normal position when the wheels of the car have passed over the switch.
  • hat I claim is 1.
  • the combination with a track rail and a switch point, a sleeve arranged transversely beneath the rail and point, an inwardly extending undercut shoulder at one end of the sleeve, a rod working loosely through said sleeve and projecting therefrom at each end, a head provided with a tongue carried by the rod and at the end of the rod opposite the said shoulder, and a spring adapted to hold the head of the rod in engagement with the sleeve.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Push-Button Switches (AREA)

Description

w I i I Patented Apr. 26, 1910.
J. A. MuOAIN,
Y SWITCH DEVICE. ON FILED JUNE 28, 1909.
.APPLI yl/[l/IIIIIIII UNITED STATES PATENT OFFICE.
JOHN ALEXANDER MCCAIN, 0F POWDER SPRINGS, GEORGIA, ASSIGNOR 0F ONE-HALF TO W. L. FLORENCE, 0F POWDER SPRINGS, GEORGIA.
SAFETY SWITCH DEVICE.
To all whom it may concern:
Be it known that I, JOHN A. MCCAIN, a citizen of the United States, residing at Powder Springs, in the county of Cobb and State of Georgia, have invented a new and useful Improvement in Safety Switch Devices, of which the following is a specification.
This invention relates to a device for holding a switch point in close engagement with a main track rail, permitting the point to be forced from the rail by the flange of a car wheel and positively returning the point to its proper position after the wheels have passed over it.
The object of the invention is to positively connect the switch point and the main track rail together directly at the point and without placing the connecting means upon the top of a tie or in any other position where it would be in danger of being struck by a loose brake rod or by any other part of the train.
The invention consists of a sleeve ar ranged beneath the rail and the switch point,
' one end of said sleeve gripping the base of the rail, a rod working through said sleeve, a head carried by said rod and gripping the base of the switch point, and a spring arranged within the sleeve for the purpose of holding the head of the rod against the end of the sleeve and the switch point in engagement with the rail.
The invention also includes means for adjusting the tension of said spring.
In the accompanying drawings, Figure 1 is a plan view of the device applied to a switch point. Fig. 2 is a section on the line 22 of Fig. 1. Fig. 3 is a similar section, the switch point being shown in the position it occupies when forced from the main track rail by the flange of a car wheel.
In these drawings, 1 represents a main track rail and 2 a switch point. A sleeve 3 extends transversely beneath the rail and point and it is provided with an inwardly extending undercut shoulder 4 at its outer end which grips the base upon the outside of the rail 1. Working loosely through this sleeve is a rod 5 provided at its inner end with a head 6 which head carries an inwardly extending tongue 7 which grips the Specification of Letters Patent.
Application filed June 28, 1909.
Patented Apr. 26, 1910.
Serial No. 504,843.
inside edge of the base of the switch point. In order to hold the tongue 7 in positive engagement with the point a coil spring 8 is placed in the sleeve and around the rod 5 and bears against the inner end portion of the sleeve 3 and at the outer end against a collar 9 which is threaded upon the outer end portion of the rod 5, said collar having a squared portion 10 for engagement with a wrench, and said collar also works in the sleeve. By adjusting the collar upon the rod the tension of the spring can be adjusted.
It will be obvious that the switch point will be normally held against the rail 1 as shown in Fig. 2, but it can be forced away from said rail by the flange of a car wheel and into the position shown in Fig. 3, such movement compressing the spring 8, which spring will return the switch point to its normal position when the wheels of the car have passed over the switch.
hat I claim is 1. The combination with a track rail and a switch point, a sleeve arranged transversely beneath the rail and point, an inwardly extending undercut shoulder at one end of the sleeve, a rod working loosely through said sleeve and projecting therefrom at each end, a head provided with a tongue carried by the rod and at the end of the rod opposite the said shoulder, and a spring adapted to hold the head of the rod in engagement with the sleeve.
2. The combination with a rail and a switch point, of a sleeve arranged transversely beneath the rail and point, an inwardly extending shoulder carried by the sleeve adapted to engage the base of the rail, a rod working through the sleeve and projecting from'its ends, a head carried by the rod, a tongue carried by the head adapted to engage the'baseof the point, a collar threaded upon the rod, and a coil spring arranged within the sleeve and bearing respectively upon an end portion of the sleeve and upon the inner end of said collar.
JOHN ALEXANDER MCCAIN.
Witnesses:
W. L. FLORENCE, C. A. CAMP.
US50484309A 1909-06-28 1909-06-28 Safety switch device. Expired - Lifetime US956139A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US50484309A US956139A (en) 1909-06-28 1909-06-28 Safety switch device.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US50484309A US956139A (en) 1909-06-28 1909-06-28 Safety switch device.

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Publication Number Publication Date
US956139A true US956139A (en) 1910-04-26

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US50484309A Expired - Lifetime US956139A (en) 1909-06-28 1909-06-28 Safety switch device.

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