US3296388A - Collector-rail support - Google Patents
Collector-rail support Download PDFInfo
- Publication number
- US3296388A US3296388A US336485A US33648564A US3296388A US 3296388 A US3296388 A US 3296388A US 336485 A US336485 A US 336485A US 33648564 A US33648564 A US 33648564A US 3296388 A US3296388 A US 3296388A
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- United States
- Prior art keywords
- rail
- support
- collector
- yoke
- insulators
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- 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.)
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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
- This invention relates to an improved support for an electrical collector rail of the overhead type.
- the conventional support for such a collector rail includes clamps fitting around the rail head and secured to a horizontal plate above the rail.
- This horizontal plate is in turn secured to rigid insulators depending from the bottom surface of a horizontal beam.
- the beam is usually bolted to a vertical post or wall.
- Collector-rail supports of the aforementioned character result in excessive stress on the insulators, resulting in frequent breakage. Thermal expansions and contractions of the rail, caused by temperature changes, also put the insulators under severe stress. In addition, the insulators are held in tension between the horizontal beam and the rail and are thus subject to the entire weight of the rail pulling downwardly thereon.
- FIGURE 1 is an end elevational view of my improved support for an overhead collector rail
- FIGURE 2 is a side elevational View thereof.
- a horizontally extending bracket B is secured to a fixed vertical wall or column P.
- a pair of insulators 2, best seen in FIGURE 2, are secured on top of bracket B by screws 3. These insulators are rigid spools which may be made of Fiberglas or any other suitable insulating material.
- bridge member 11 Welded to the bottom of bridge member 11 are two angles 13, best seen in FIGURE 1, which have flanges 14 facing toward each other and adapted to be engaged by a plate 15.
- Plate 15 is welded transversely to a collector T-rail R, shown in FIGURES 1 and 2, and is free to slide on flanges 14.
- a grease fitting 17 in bridge member 11 permits introduction of a lubricant therethrough onto the top of plate 15, from where it will flow to the juxtaposed surfaces of the latter and flanges 14 to maintain a freely sliding contact therebetween.
- Means for holding an electrical collector rail dependent from a fixed support comprising an insulator extending upwardly from said support, a yoke mounted on top of said insulator, said yoke having a plate extending over said support and having sides depending below said support, and means mounted on the sides of said yoke and below said support adapted to carry said collector rail.
- said rail-carrying means mounted on the sides of said yoke comprises flanges on opposite sides of said rail extending inwardly toward the latter and adapted to support the rail and permit a lengthwise motion thereof.
- said rail-carrying means mounted on the sides of said yoke comprises a bridge member extending underneath said fixed support, and support members mounted on the underside of said bridge member and on opposite sides of said rail, said support members having flanges extending toward each other adapted to support the said rail while permitting a lengthwise motion thereof.
- the support of claim 3 characterized by means for introducing a lubricant from the top of said bridge member to the area of contact between said support members and said rail.
- a suspension for a T-rail comprising a horizontally extending bracket, an insulator upstanding thereon, a yoke resting on said insulator, said yoke having a plate extendv ing over said support and having ends depending below said bracket, a member bridging said ends, and rail-supporting means extending downwardly from said member on opposite sides of the rail.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
- Insulators (AREA)
Description
1967 J. BETLEJEWSKI I 3,
COLLECTOR-RAIL SUPPORT Filed Jan. s, 1964 E LE: 1 9
lNVE/VTOR JOH/V BETL EJEWSK/ y 5, 9
Aflorney United States Patent 3,296,388 COLLECTOR-RAIL SUPPORT John Betlejewski, Bremen Township, Cook County, Ill.,
assignor to United States Steel Corporation, a corporation of Delaware Filed Jan. 8, 1964, Ser. No. 336,485 5 Claims. (Cl. 19132) This invention relates to an improved support for an electrical collector rail of the overhead type.
The conventional support for such a collector rail includes clamps fitting around the rail head and secured to a horizontal plate above the rail. This horizontal plate is in turn secured to rigid insulators depending from the bottom surface of a horizontal beam. The beam is usually bolted to a vertical post or wall.
Collector-rail supports of the aforementioned character result in excessive stress on the insulators, resulting in frequent breakage. Thermal expansions and contractions of the rail, caused by temperature changes, also put the insulators under severe stress. In addition, the insulators are held in tension between the horizontal beam and the rail and are thus subject to the entire weight of the rail pulling downwardly thereon.
It is therefore an object of this invention to provide a collector-rail support wherein the foregoing conditions are eliminated and the stress imposed upon the insulating means of the support is greatly reduced.
The attainment of this and other objects by my invention will appear more readily from the following detailed description of a preferred embodiment thereof, shown in the attached drawings in which:
FIGURE 1 is an end elevational view of my improved support for an overhead collector rail; and
FIGURE 2 is a side elevational View thereof.
Referring to FIGURE 1, a horizontally extending bracket B is secured to a fixed vertical wall or column P.
A pair of insulators 2, best seen in FIGURE 2, are secured on top of bracket B by screws 3. These insulators are rigid spools which may be made of Fiberglas or any other suitable insulating material.
A yoke 5, made up of a pair of angles 6 and a top plate 7, rests on the insulators 2 with angles 6 depending below bracket B (FIGURE 2). Screws 9 secure both angles 6 and plate 7 to the tops of insulators 2. A bridge member 11, extending underneath bracket B, is secured by bolts 12 to the vertical flanges of angles 6.
Welded to the bottom of bridge member 11 are two angles 13, best seen in FIGURE 1, which have flanges 14 facing toward each other and adapted to be engaged by a plate 15. Plate 15 is welded transversely to a collector T-rail R, shown in FIGURES 1 and 2, and is free to slide on flanges 14. A grease fitting 17 in bridge member 11 permits introduction of a lubricant therethrough onto the top of plate 15, from where it will flow to the juxtaposed surfaces of the latter and flanges 14 to maintain a freely sliding contact therebetween.
Thus, when the collector rail R eXpands or contracts as a result of temperature changes, plate 15 will slide freely on the lubricated surfaces of flanges 14. None of the forces caused by movement of the rail will be transmitted to the insulators 2. Furthermore, since the insulators support the collector rail in compression, rather than in tension, each insulator is able to carry a greater load for a longer period of time without danger of failure.
While I have thus described one embodiment of my invention, modifications may of course be made without departing from the scope of the appended claims.
I claim:
1. Means for holding an electrical collector rail dependent from a fixed support, said means comprising an insulator extending upwardly from said support, a yoke mounted on top of said insulator, said yoke having a plate extending over said support and having sides depending below said support, and means mounted on the sides of said yoke and below said support adapted to carry said collector rail.
2. The device of claim 1 wherein said rail-carrying means mounted on the sides of said yoke comprises flanges on opposite sides of said rail extending inwardly toward the latter and adapted to support the rail and permit a lengthwise motion thereof.
3. The device of claim 1 wherein said rail-carrying means mounted on the sides of said yoke comprises a bridge member extending underneath said fixed support, and support members mounted on the underside of said bridge member and on opposite sides of said rail, said support members having flanges extending toward each other adapted to support the said rail while permitting a lengthwise motion thereof.
4. The support of claim 3 characterized by means for introducing a lubricant from the top of said bridge member to the area of contact between said support members and said rail.
5. A suspension for a T-rail comprising a horizontally extending bracket, an insulator upstanding thereon, a yoke resting on said insulator, said yoke having a plate extendv ing over said support and having ends depending below said bracket, a member bridging said ends, and rail-supporting means extending downwardly from said member on opposite sides of the rail.
References Cited by the Examiner UNITED STATES PATENTS 1,998,052 4/1935 Malm et al 19132 ARTHUR L. LA POINT, Primary Examiner. STANLEY T. KRAWCZEWICZ, Examiner.
Claims (1)
- 5. A SUSPENSION FOR A T-RAIL COMPRISING A HORIZONTALLY EXTENDING BRACKET, AN INSULATOR UPSTANDING THEREON, A YOKE RESTING ON SAID INSULATOR, SAID YOKE HAVING A PLATE EXTENDING OVER SAID SUPPORT AND HAVING ENDS DEPENDING BELOW SAID BRACKET, A MEMBER BRIDGING SAID ENDS, AND RAIL-SUPPORTING MEANS EXTENDING DOWNWARDLY FROM SAID MEMBER ON OPPOSITE SIDES OF THE RAIL.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US336485A US3296388A (en) | 1964-01-08 | 1964-01-08 | Collector-rail support |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US336485A US3296388A (en) | 1964-01-08 | 1964-01-08 | Collector-rail support |
Publications (1)
Publication Number | Publication Date |
---|---|
US3296388A true US3296388A (en) | 1967-01-03 |
Family
ID=23316304
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US336485A Expired - Lifetime US3296388A (en) | 1964-01-08 | 1964-01-08 | Collector-rail support |
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Country | Link |
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US (1) | US3296388A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106965709A (en) * | 2017-02-18 | 2017-07-21 | 湖南华品轨道交通有限公司 | A kind of insulation support device and its installation method |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1998052A (en) * | 1931-09-16 | 1935-04-16 | Knute P Malm | Insulator support |
-
1964
- 1964-01-08 US US336485A patent/US3296388A/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1998052A (en) * | 1931-09-16 | 1935-04-16 | Knute P Malm | Insulator support |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106965709A (en) * | 2017-02-18 | 2017-07-21 | 湖南华品轨道交通有限公司 | A kind of insulation support device and its installation method |
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