US959929A - High-voltage switch. - Google Patents

Description

W. T. GODDARD.

HIGH VOLTAGE SWITCH.

APPLIOATION FILED OCT. 25, 1909. Patented May 31, 1910.

I 4 5 I L Di 1 Q g /6 1 E7 I|l=l L I I Q III E i: ll 1' 1' Q awe/14m UNITED STATES EATENT OFFICE.

WALTER T. GODDARD, OF VICTOR, NEW YORK, ASSIGNOR T0 LOCKE INSULATOR MANUFACTUKING COMPANY, OF VICTOR, NEW YORK, A CORPORATION OF NEW xonx.

Specification of Letters Patent.

HIGH-VOLTAGE SWITCH.

Patented May 31, 1910.

Original Iapplication filed June 12, 1908, Serial No. 438,055. Divided and this application filed October 25,

1909. Serial No. 524,470.

To all whom it may concern:

Be it known that I, WALTER T. GODDARD, of Victor, in the county of Ontario and State of New York, haveinvented certain new and useful Improvements in High- Voltage Switches; and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming a partof this speclfication, and to the ence-numerals marked thereon.

The present invention relates to high voltage switches and it has for an object to provide a construction in which the insulating support is so formed that it may be made to agree with the voltage of the lines connected to the switch.

To these and other ends the invention consists in certain improvements and combinations of parts, all as will be hereinafter more fully described, the novel features being pointed out in theclaims at the end of the specification.

In the drawings: Figure 1 is-a side view of a switch constructed in accordance with this invention, and Fig. 2 is a side view of of units, each of which may embody one or.

more pieces of insulating material. ,In this instance a tapered cup-shaped section 1 is secured by screw threads or other. means within a reduced extension 2 that projects from a concavexconvex section 3, the latter serving as an annular flange to increase the arcing distance of the unit. The units may be united in any suitable manner, but it is preferred to employ metallic connecting devices each formed of two members 4 and 5. The member 4 may be in the form of 0. ca

secured to the extension 2- by screw threa s or other suitable means and having a pair of ways 6 between which an eye .7,- on the member 5 is fitted and secured by the spring J refer- I otherwise formed to engage within the section 1. This insulator is preferably supported at both ends so that it will not swing and for this purpose are provided two supports 9 and 10 which the insulator connects, one end of the insulator being provided with two links 11 connected at their outer ends and arranged on opposite sides'of the support 9, and the other ends of the insulator being connected to the support 10 by the tension applying device, comprising in this instance a bolt 12 passing through a perforation in the said support and engaged by a nut 13. Of course, the tension a plying device may be of any other suitabib construction and arranged in a different position, it being only necessary that it can place the insulator under tension independently of the parts supported thereby. If the insulator be placed under a tension of 2000 pounds, no movement thereof will take place under ordinary conditions, yet, a force acting transversely to the longitudinal axis suflicient to break the insulator if it were ing over 60,000. volts, the insulator being liable to run to extreme diameters which also means that the device will consume a great deal of s ace in all directions when installed. In t e present instance both of the terminals of the switch are arranged on the insulator whichthen forms a terminal carrier, having for this purpose arms 14 branched from two caps 4 and carrying spring clips 15 to which the conductors are connected.

It will be noted that the same number of units is arran ed between the terminals as is arranged tween each terminal and its proximate support, thus causing-the arc-- ing distance between the two terminals to be the same as the arcing distance between each terminal and its proximate support. Wlth this construction the arcing distance between two terminals and between the terminals and the support may be made to agree with the voltage of lines connected to the terminals, It will be further noted that an insulating terminal carrier is provided which is entirely surrounded by flanges between the two terminals, and also between a terminal and its nearest support. The tension on the insulator prevents the shifting of the terminals relatively to each other,

thus insuring that the switch blade or container 17 which is pivoted at 18 to one of the terminals will always engage'the other terminal in a proper manner.

In order to ground the terminal which is connected directly to the apparatus to be operated, so that the ap aratus can be operated with safety I p'rowde an earth connection preferably in the form of an extension 19 on one of the supports, the extension being provided with a clip 30 at its free end to receive the switch blade 17.

I claim as my invention:

1. The combination with a pair of supports, of a terminal, and an insulator between the supports carrying the terminal and having insulating flanges about it on both sides of the terminal.

2. The combination with a pair of supports, of a terminal, an insulator between the supports carrying the terminal and comprising a plurality of insulator units, devices for uniting proximate ends of the units, and means for placing said insulator under tension independently of the conductor connected to the terminal.

3. The combination with a pair of terminals, of an insulating carrier for the terminals, having an insulating flange about it between the terminals.

4:. The combination with a pair of supports, and terminals, of an insulating terminal-carrier connecting the supports and having an insulating flange between the terminals, and an insulating flange between eachterminal and its proximate support.

5. The combination with an insulator supported at opposite ends, having a plurality of insulating flanges about it and compris ing a plurality of units, of terminals insulated from each other by said insulator and having insulating flanges'of the latter located between them.

6, The combinationwith an insulator supported at ofpposite ends and com rising a plurality o insulating units, an devices for uniting proximate ends of the units, of a terminal arranged intermediately of the ends of the insulator, and a device for applyin tension to the insulator.

7. The combination of a terminal-carrier comprising insulating units, and metallic devices connecting the insulating units, with terminals'on said carrier insulated from each other, and a tension applying device for the carrier.

8. The combination with a plurality of insulator units, arranged end to end, of arms branched .from said units and carrying terminals, and a tension applying device connected to the units.

9. The combination with a pair of supports, of a terminal-carrier connecting the supports and comprising flanged insulating units and metallic connections between said units, arms branched from said metallic connections and carrying terminals, and a tension applying device for the carrier.

10. The combination with the terminals, of a carrier therefor comprising insulating portions having surrounding flanges, rods each secured at one end to an insulating portion and having an eyeat its other end and caps fitting on the insulating portions and having ears secured to the eyes of the bolt, and arms branched from the caps and carrying the terminals.

11. The combination with a pair of supports, of an insulating terminal carrier connecting said supports and comprising insulating portions and metallic portions connecting them, arms branching from the metallic portions carryin terminals, and a tension applying device or the insulating terminal-carrier. I

12. The combination with a pair of supports, of a section insulator connecting the supports, and a pair of terminals carried by the insulator and each having the arcing distance between it and its proximate support equal to the arcing distance between the two terminals.

13. The combination with a pair of supports, and a pair of terminals, of an insulator connecting the supports, carrying the terminals and formed of insulator units, the same number of units being arranged between the terminals as are arranged between a terminal and its proximate support.

14. The combination with a pair of supports, one of which has an extension, a pair of terminals, of a terminal carrier connecting the supports and having flanges about it between the terminals and between the latter and the supports, and a connector pivoted to one of the terminals and adapted to be thrown into contact with the extension and with the other terminal.

WALTER T. GODDARD.

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