US1172470A - High-tension switch. - Google Patents

Description

C. R. LININGER.

' HIGH TENSION SWITCH.

APPLICATION FILED MAY 14. I915.

Patented Feb. 22, 1916.

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HIGH TENSION SWITCH.

APPLICATION FILED MAY 14, 1915.

' anuewtoz /z/za/mizzgfiz Patented F61). 22, 1916.

2 SHEETSSHEET 2 CLARENCE R. LININGER, OF CHICAGO, ILLINOIS.

HIGH-TENSION SWITCH.

Specification of Letters Patent.

Patented Feb. 22, 1916.

Application filed May 14, 1915. Serial No. 28,074.

To all whom it may concern:

Be it known that I, CLARENCE R. Lnc menu, a citizen of the United States of America, residing at Chicago, county of Cook, State of Illinois, have invented a new and useful High-Tension Switch, of which the following is a specification.

This invention relates to an electrical switch or apparatus for opening and closing electrical high voltage transmission circuits, the object of which invention being to provide a device of this nature adapted for use in connection with either singleor multiphase circuits. For instance, where it is necessary to sectionalize an electrical transmission line, or to open or close a branch circuit at the point of intersection with the main electrical transmission line, or for the protection of any other electrical equipment that may be operated from such electrical high voltage transmission lines.

Another object of the invention is to provide a resilient but permanent seat or stop for one of the contacting terminals of the switch.

Owing to the recent progress and development of high tensioned transmission circuits, it has become necessary to provide proper devices that can be operated under all natural or weather conditions.

Therefore, it is another object of the invention to provide an improved switch that can be operated under all weather condi ,tions, and will attain and maintain positive contacting between the contacting terminals or stationary and movable switch members.

Another object of the invention is the provision of such improved contacting terminals or switch members, that when brought into coijperation, one will tend to cut or break the ice or sleet from the other, and even in rainy weather one contacting terminal will tend to scrape against the other, thereby shedding the water and the like from the other terminal. Such freezing of the water, to form ice or sleet, or the snow that may adhere to such terminal contacts will be easily and quickly ruptured by the revoluble action of one of the contacting terminals.

In practical fields the details of construction may necessitate alterations, falling within the scope of what is claimed.

The invention comprises further features and combination of parts, as hereinafter set forth, shown in the drawings and claimed.

--'permost In the draWings:Figure 1 is a view in perspective of the improved electrical switch or apparatus constructed in accordance with the invention. Fig. 2 is an enlarged side elevation of a portion of the electrical switch. ,Fig. 3 is a top plan view of the structure shown in Fig. 2. Fig. I is a vertical sectional view'through Fig. 2. Fig. 5 is an enlarged detail view of a portion of one of the guard guide cutting contact terminal arms at the free end or extremity of the movable switch member. Fig; 6 is a detail view in cross section on line 66 of Fig.3, showing the two guard or guide cutting contacting terminal arms, as scraping against opposite sides of a stationary contacting terminal arm. Fig.7 is an enlarged detail view of the means for supporting the stationary contacting terminal or arm upon a porcelain support. Fig. 8 is a detail view showing the key pin 18 for securing the ear 19 of the post or standard 20 to the shaft 12.

Referrin more especially to the drawings, 1 designates a channel iron base, designed for supporting the various elements of the electrical switch or apparatus.- Secured by bolts or other suitable means 2 to one end portion of thechannel iron base is the base plate 3 of a winged metallic standard 4, the upper portion of which terminates in a threaded extension 5, which is threaded into a suitableinsulator member 6, which may be constructed of any suitable material, such as glass, porcelain or the like. This insulator is provided with a plurality of projecting tiers varying in diameters from the lowermost tier to I, the uppermost, acting to shed the water and the like from the lower portion of the standard 4. This insulator at its upper extremity is constructed with a head 7, between which and the upshedding tier an annular groove 8 is formed, the purpose of which will appear later.

Secured to the other end of the channel base by means of bolts or other suitable means, 9, is a supporting bracket 10 having ears 11, revolubly mounted in bearings of which is a rocking shaft 12. On one end of the shaft an arm 13 is keyed, as shown at 14:, and to the arm the bifurcated end 15 of the operating rod 16- is pivoted, as shown at 17 Fastened to the other end of the'rocking shaft, by virture of a suitable key pin 18 is an ear 19 of the metallic post or standard 20, the upper end of which terminates 7 which the other side of the line or circuitin a threaded extension 21 similar to the em tension 5, and which is threaded into an insulator 22 similar in construction to the insulator 6, which is likewise provided with a head 23 and groove 24:.

Carried by each of the insulators above its respective head is a cap plate 25, which is provided with three radially and downwardly extending integral arms 26.- These arms 26 at their lower portions extend inwardly toward the groove of the uppermost portion of the insulator so as to engage said groove, as shown clearly in Figs. 1, 2 and t. The lower portions of the arms 26 are integrally connected by the ring sections 27, which are constructed with enlargements 28 having receiving sockets 29. These enlargements 28' are located adjacent two of the diametrically oppositely disposed arms 26,

as shown clearly. The lower inturned portions of the arms 26 and the ring sections 27 engage onehalf of'the groove, and to, hold said arms in such positionsan dthe cap plates rigidly place a semi-annular ring section 30 is provided,which engagesthe other half of the groove. The ends ot the semi-annular ring section are received in the-sockets 29, and are secured therein by any suitable means, such as soldering and the like, as shown at 31. By virtue of this construction it is to be observed that the cap plate 25 of each of the insulators-is held firmly or rigidly in position, thereby'afiording a rigid support.

Secured oy suitable screws 32 upon the cap plate 25 of the insulator 22 is a supporting bracket 33, the upper lug 3d otwhich has an opening 35, in which a switch member 'orarm 36 is adjustably secured by the set screw 37. The supportingbracket 33 has an extension 39 provided with a binding screw d0, to which one or the leads or wires ot any suitablehigh tensioned or voltage transmission circuit maybe connected.

To the cap plate 25 of the InsulntOI 6 a bracket plate ll is secured by suitable screws 4:2. The bracket plate ll has an extension 43 provided with a binding screw 44, to

may be connected. The bracket late d1 is formed with an enlargement d5 avingan opening 46, in which the laterally extending ends? of the yieldable contact terminal or arm 48 is secured in any suitable manner. This contacting terminal as will be noted, is supported stationarily, but at the same time its vertical ortion is yieldable. Th1s vertical portion 9 is formed into a single coil 50, which is likewise slightly yieldable, and beyond the coil 50, the vertical portion 49 terminates in the yieldable contacting sta tionarily su ported terminal or arm proper 51. It is c early evident that just beyond the coil 50 this yieldable contacting terminal proper is curved slightly toward the switch gral with and extending laterally in opposite directions from the arms or forks 57 are lugs 60 having sockets 61, in which the downwardly extending portions 62 of the cutting guard or guide contacting terminals or arms 63 are securedin any suitable manner (not shown), however, for instance, by virtue of soldering or otherwise.

it will be observed that in plan view the terminals or arms 63 rise upwardly and laterally and toward each other, then upwardly and outwardly from each other, thereby forming a space between such terminals or arms, which is contracted substantially at its central portion and of a greater width at both ends. lit will be observed that in plan view the contacting wheel terminal is so disposed relative to the contacting terminals or arms 63, that the groove in said wheel is substantially corresponding to the contracted portion of the space between the arms or terminals 63, so that when the switch member or arm 36 is thrown in the osition shown in Fig. l, the arms or terminals 63 will act to draw the contacting terminal 51 toward the groove in the wheel, thereby maintaining a sure contact of the parts. Moreover, it is to be observed that the upper portion of the single coil 50 is alined vertically with the groove in the contacting wheel, which not only adords a yieldable support for the contacting wheel and the switch arm or member 36, but which, owing to the weight or pressure of the member 36 on the coil 50, causes the contacting terminal 51 to bear firmly in the groove of the contacting wheel. The harder the pressure upon the switch member or arm 36, more secure becomes the contact between the members 5i and the wheel 59. lVhen the switch member or arm '36 is thrown into the position shown in Fig. l, the contacting wheel or member 59 first engages the curved portion 53 substantially at the point indicated at 65, and as the switch member or arm 36 moves downwardly toward the coil 50, the wheel rolls upon the contact member 51, thereby rupturing the sleet and ice onthe contacting member 51 thereby causing a true contact of the engaging parts, and as pressure is exerted upon the switch member or arm 36, thereby causing the contacting wheel to engage the coil (which tends to cahse the contacting member 51 to lean totacting mem ward the coil) the contact between the engaging parts becomes greater. Furthermore, as this engagement is produced, the contacting arms or terminals 63 likewise scrape against the curved portion 53. In other words, the arms or terminals 63 owing to their cutting edges 66 strip or cut the ice and sleet from the curved part 53 of the terminal 51 thereby insuring the closing of the electric circuit, in which the electrical switch orapparatus may be located. No matter. what quantity of ice and sleet may form upon these contacting parts, the closing of the circuit is assured. In other' words, where any two of the engaging or contacting parts fail to close other contacting or engaging parts will close the circuit, and vice versa.

'When electrical installation is installed, whether on the interior or the exterior of a plant, preferably exteriorly, the current on one side of the line is conveyed to theap; paratus through the binding member 44 over the lead 68, from -any suitable source. Thence the current carries through the conber 51, the contacting wheel 59 and the arms 63, throu h the switch member or arm 36 to the ot er side of the line over the lead or wire 70, to various devices (not shown) for the proper operation of the same and to maintain a continuous electrical circuit.

The invention having been set forth, what is claimed as new and useful is:

1. In an electrical switch, a stationary contact member, but yieldable incident to pressure thereon, a movable'contact' mem ber comprising a member revoluble in its action incident to engaging the stationary contact member, and combined additional contact members and ice and sleet removing devices carried by the movable contact member for engagement with the stationary contact member, and a contacting coil for msuring engagement of the contacting arts incident to pressure upon constituting a support for the revoluble member and acting to cause the stationary but yieldable contact .to lean against. said revolublemember. I

2. In a electrical switch, a stationary member having multiple electrical contact parts, a movable switch member having multiple contact terminals to cooperate with said parts, one of the multiple electrical contact parts of the stationary member constituting means to draw the stationary member toward one of the multiple contact terminals, said contact parts causing the drawthe circuit,

the coil, sai coil.

ing of the stationary member acting as a support for the movable switch member.

3. In an electrical switch, stationary supporting means, a contact member on said means and being yieldable incident to pressure thereon, said stationary contact mem-- her being formed into a contact coil and a curved arm beyond the coil, a movable switch member having a sleeve upon one end provided with forks, a revoluble contact memberv journaled to engage draws said part toward the terminal hol 'ng.

the terminal against the support. 5. In a high tension switch, an electric movable switch member having a revoluble contact terminal, a stationary member having an electrical contact part yieldable to ward he terminal when in contact therewith, said member having an electrical sup.-

.rt below and offset from said part to sup--- port the terminal, which support draws said part toward and against and holds the terminal against the support. i

6. In a high tension switch; an electric movable switch member havinga revoluble contact terminal, a stationary member consisting ofa single element constructed to form a 'tensioning coil and terminating therebeyond in an electrical. contact part yielda'ble toward the terminal, when in contact therewith, said coil being below and ofiset from said part forming a crotch to receive the terminal; the coil acting asa sup port for the terminal, audits tensioning actiondrawing said part toward and against the terminal holding the same against the support.

In the presence of two witnesses, my signature is hereto afiixed in said forms and receive said am and cause the arm to yield incident to the pressure of the revoluble member thereon,. opposing contacting terminals carried by said forks engaging upon" and" scraping having a contact

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