US922951A - Third-rail insulator. - Google Patents

Third-rail insulator. Download PDF

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Publication number
US922951A
US922951A US37140007A US1907371400A US922951A US 922951 A US922951 A US 922951A US 37140007 A US37140007 A US 37140007A US 1907371400 A US1907371400 A US 1907371400A US 922951 A US922951 A US 922951A
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United States
Prior art keywords
rail
insulator
support
base
short section
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Expired - Lifetime
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US37140007A
Inventor
Leonard M Randolph
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ESSEX Co
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ESSEX Co
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Publication date
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Priority to US37140007A priority Critical patent/US922951A/en
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Publication of US922951A publication Critical patent/US922951A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
    • B60M1/00—Power supply lines for contact with collector on vehicle
    • B60M1/30—Power rails
    • B60M1/307—Supports

Definitions

  • the objectoi' this invention is to provide a third-railinsulator which can be manufactured cheaplyfrom materials usually kept in stock, that is, from materials which 101' the most part do not have to be made to order, and which ca'n; be conveniently assembled and installed.
  • Figure 1 is a view in elevation, upon a plane transverse tolthe'direction of the rail, the rail being indicated in dotted lines
  • Fig. 2 is asimilar view upon a plane at right angles to the plane of Fig. '1.
  • the improved insulator comprises essentially three parts, a base a which is formed of channel iron, arail support b which is formed of a portion of an I-beam, and a connecting piece of insulating material 0 between the channel iron base and I-beam rail. support.
  • the insulator or insulating material 0 is preferably shaped like the frustum of a cone having two flat portions however, which flt against the sides ofthe channel iron base and prevent the insulator from twisting. It is preferably loosely secured. to the base by means of a lug (Z upon thebase which engages a corresponding hole'in the bottom of the insulator.
  • TheiLbeam support 7) is of a suit able size to receive and accommodate the rail and is looselyheld upon the top of the in sulating material 0 by means of a lug f upon said support which extends down into the in sulating material,'wherebylthe support I) is capable of relative movement in a vertical direction and of rotation in a horizontal plane with respect to the insulator c.
  • one of theflanges of the support is preferably bent over so as to more or less engage the rail.
  • the corresponding flange on the other side is also slightly curved. The railis inserted by first placing the base flange ofthe rail within the flange e and then bringing the other side down within the flange of the support I) on the other side.
  • a third-rail insulator comprising a short section of channel iron, a short section of an I-beam, and insulating material between said sections.
  • a third-rail insulator comprising a short section of channel iron for a base, a short section of an I-beam for a rail support, and insulating material between the base and the support.
  • a third-rail insulator comprising a short section of channel iron for a base, a short sec tion of an I-beam for a rail support, and insulating material between them and to which they are loosely connected.
  • a third-rail insulator comprising a short section of channel iron for a base, an insulator in the shape of a frustum of a cone upon the base, and a short section of an I-beam for a rail support loosely mounted upon the insulator.
  • a third-rail insulator comprising a short section of channel iron for a base, a short section of an I-beam for a rail support, both of which sections are provided with a lug, and an insulator between said base and support in which the lugs rest.
  • a third-rail insulator comprising a channel iron base, an insulator upon the base, and an I-beam rail support upon the insulator, one of the flanges of the support being bent over to secure the rail.

Description

L. M. RANDOLPH.
THIRD RAIL INSULATOR.
APPLIGATION FILED MAY 2, 1907,
Patented May 25, 1909.
Attest:
LEONARD M.
Eric.
' I NEWARK,-NEW JERSEY, A CORPORATION OF NEW JERSEY.
THIRD-RAIL INSULATOR.
To all whom it may concern:
Be it vknownfth'atl LEONARD M. RAN- noLri-r, a citizen of the United States, and a resident of the city of Newark, in the county of Essex andState of New Jersey, have invented certain new and useful Improvements in Third-Rail Insulators, of which the follow ing is a specification, reference being had to the accompanyingdrawings, forming a part hereof.
The objectoi' this invention is to provide a third-railinsulator which can be manufactured cheaplyfrom materials usually kept in stock, that is, from materials which 101' the most part do not have to be made to order, and which ca'n; be conveniently assembled and installed.
The invention'will be more fully explained in connection with the i accompanying drawings in'which it is illustrated and in which,
Figure 1 is a view in elevation, upon a plane transverse tolthe'direction of the rail, the rail being indicated in dotted lines, and, Fig. 2 is asimilar view upon a plane at right angles to the plane of Fig. '1. The improved insulator comprises essentially three parts, a base a which is formed of channel iron, arail support b which is formed of a portion of an I-beam, and a connecting piece of insulating material 0 between the channel iron base and I-beam rail. support.
The insulator or insulating material 0 is preferably shaped like the frustum of a cone having two flat portions however, which flt against the sides ofthe channel iron base and prevent the insulator from twisting. It is preferably loosely secured. to the base by means of a lug (Z upon thebase which engages a corresponding hole'in the bottom of the insulator. TheiLbeam support 7) is of a suit able size to receive and accommodate the rail and is looselyheld upon the top of the in sulating material 0 by means of a lug f upon said support which extends down into the in sulating material,'wherebylthe support I) is capable of relative movement in a vertical direction and of rotation in a horizontal plane with respect to the insulator c. In order to Specification of Letters Patent.
Patented May 25, 1909.
Application filed May 2, 1907. Serial No. 371,400.
help maintain the rail in its position within the support 7), one of theflanges of the support, as the flange e, is preferably bent over so as to more or less engage the rail. The corresponding flange on the other side is also slightly curved. The railis inserted by first placing the base flange ofthe rail within the flange e and then bringing the other side down within the flange of the support I) on the other side.
I claim as my invention 1. A third-rail insulatorcomprising a short section of channel iron, a short section of an I-beam, and insulating material between said sections.
A third-rail insulator comprising a short section of channel iron for a base, a short section of an I-beam for a rail support, and insulating material between the base and the support.
3. A third-rail insulator comprising a short section of channel iron for a base, a short sec tion of an I-beam for a rail support, and insulating material between them and to which they are loosely connected.
4. A third-rail insulatorcomprising a short section of channel iron for a base, an insulator in the shape of a frustum of a cone upon the base, and a short section of an I-beam for a rail support loosely mounted upon the insulator.
5. A third-rail insulator comprising a short section of channel iron for a base, a short section of an I-beam for a rail support, both of which sections are provided with a lug, and an insulator between said base and support in which the lugs rest.
6. A third-rail insulator comprising a channel iron base, an insulator upon the base, and an I-beam rail support upon the insulator, one of the flanges of the support being bent over to secure the rail.
This specification signed and witnessed this 29th day of April, 1907.
LEONARD M. RANDOLPH.
Signed in the presence of:
LUCIUS E. VARNEY, AMBROSE L. OSHEA.
US37140007A 1907-05-02 1907-05-02 Third-rail insulator. Expired - Lifetime US922951A (en)

Priority Applications (1)

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US37140007A US922951A (en) 1907-05-02 1907-05-02 Third-rail insulator.

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US37140007A US922951A (en) 1907-05-02 1907-05-02 Third-rail insulator.

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3071656A (en) * 1959-11-23 1963-01-01 Ohio & Brass Company Third rail apparatus
USD964888S1 (en) * 2019-12-11 2022-09-27 Richard Steininger Base for a rail insulator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3071656A (en) * 1959-11-23 1963-01-01 Ohio & Brass Company Third rail apparatus
USD964888S1 (en) * 2019-12-11 2022-09-27 Richard Steininger Base for a rail insulator

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