US703563A - Guard for third-rail systems. - Google Patents

Guard for third-rail systems. Download PDF

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Publication number
US703563A
US703563A US10121402A US1902101214A US703563A US 703563 A US703563 A US 703563A US 10121402 A US10121402 A US 10121402A US 1902101214 A US1902101214 A US 1902101214A US 703563 A US703563 A US 703563A
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United States
Prior art keywords
rail
guard
guards
rail systems
sparks
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Expired - Lifetime
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US10121402A
Inventor
Sterling Elliott
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Individual
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Individual
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Priority to US10121402A priority Critical patent/US703563A/en
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Publication of US703563A publication Critical patent/US703563A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B60M1/02—Details
    • B60M1/04—Mechanical protection of line; Protection against contact by living beings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S137/00—Fluid handling
    • Y10S137/903—Rubber valve springs

Definitions

  • A represents the third or electric conducting-rail, which may be of the form shown in sectional Fig. 2.
  • This rail has the usual support on an elevated track,
  • the object of my invention being to pre vent the falling of sparks from the third rail upon persons or things below the track, -I
  • guards of wood in the form of boards or planks, as shown at B.
  • These being of nonconducting material may be made to rest directly upon the flange of the rail A, near or at the outer edge of the flange, so that the rail-flanges form the bottom of the spark-receiving space between the. guard; but if guards be used of conducting material or of material of essentially greater conducting quality non-conducting strips may be interposed between' them and the rail flanges.
  • I claim- 1. In combination with the third or electrically-charged rail of an elevated railway, guards resting on the rail-flanges, and extending above the said rail and means for holding said guards in place, substantially as described.
  • guards resting on the flanges of-said-rail and extending above the said rail, bolts,.and distance-pieces securing said guards-in place, all substantially as described. 7

Description

No. 703,563. Patent ed luly l, I902.
s. ELLIOTT. aumm FOB THIRD BA'IL SYSTEMS.
(Applicafion filed. Apr. 8, 1902.
(lo llodeL) m: nbnms warms 00.. PHuraLrrnm, msumaron. a. a
UNITED STATES PATENT OFFICE.
STERLING ELLIOTT, OF BOSTON, MASSACHUSETTS.
GUARD FOR THIRD-RAIL SYSTEMS.
SPECIFICATION formingpart of Letters Patent No. 703,563, dated July 1, 1902. Application filed April 3,1902. Serial No.101,214. (No model.)
ing of sparks and inthe form shown herein' designed also to prevent accidental contact of persons with the said rail.
In the accompanying drawings I have shown a convenient, simple, and effective embodiment of my invention best known to me, these drawings showing in Figure 1 a portion of the guard in side elevation and in Fig; 2 a
cross-section, all as hereinafter explained.
In the drawings, A represents the third or electric conducting-rail, which may be of the form shown in sectional Fig. 2. This rail has the usual support on an elevated track,
which support and track need no illustration,
being well known.
The object of my invention being to pre vent the falling of sparks from the third rail upon persons or things below the track, -I
have considered it essential to that object .to
provide an inclosure which should'confine such sparks within narrow lateral limits and which should cover the least possible floorspace on the track, and thus least obstructthe.
light. Further, it seemed desirable by the same structure to prevent accidental contact of persons with the rail and to accomplish these objects by simple and inexpensive means. I secure all these ends by means of two guards of wood in the form of boards or planks, as shown at B. These being of nonconducting material may be made to rest directly upon the flange of the rail A, near or at the outer edge of the flange, so that the rail-flanges form the bottom of the spark-receiving space between the. guard; but if guards be used of conducting material or of material of essentially greater conducting quality non-conducting strips may be interposed between' them and the rail flanges. The position described brings the upper parts of the guard near to the sides of the head of of sleeves of woodfor any suitable material placed on the bolts and bearing against the web at one end and the side of the guard at the other, so that when the nuts are turned up the guards are fixed in place. As the guards are placed within the rail-base, no more of the limited space of the elevated road is occupied. The guards are extended above the upper surface of the conducting-rail far enough to obstruct the sparks and at the same time to prevent accidental contact of persons, as aforesaid. The proportions as shown in Fig. 2 aforesaid are correct, but maybe varied without departure from the spirit of my invention. Sufficient elevation 'of'tlie guards to arrest the sparks and sufficient space between rail-headand guard to permit them to fall into the larger spaces below the rail-head inclosed by the guard or the 'fianges must be provided. Small openings maybe made, if necessary, to permit the es- .cape of water.
I claim- 1.. In combination with the third or electrically-charged rail of an elevated railway, guards resting on the rail-flanges, and extending above the said rail and means for holding said guards in place, substantially as described.
2. In combination with the third or electrically-charged rail of an elevated railway, guards resting on the flanges of-said-rail and extending above the said rail, bolts,.and distance-pieces securing said guards-in place, all substantially as described. 7
In testimony whereof Iaffix :my signature in presence of two witnesses.
STERLING ELLIOTT.
Witnesses:
H. O. NIcKERsoN, P. W. I-IUTcHIsoN.
US10121402A 1902-04-03 1902-04-03 Guard for third-rail systems. Expired - Lifetime US703563A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US10121402A US703563A (en) 1902-04-03 1902-04-03 Guard for third-rail systems.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10121402A US703563A (en) 1902-04-03 1902-04-03 Guard for third-rail systems.

Publications (1)

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US703563A true US703563A (en) 1902-07-01

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Family Applications (1)

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US10121402A Expired - Lifetime US703563A (en) 1902-04-03 1902-04-03 Guard for third-rail systems.

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180355909A1 (en) * 2015-12-01 2018-12-13 Ntn Corporation Foil bearing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180355909A1 (en) * 2015-12-01 2018-12-13 Ntn Corporation Foil bearing

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