US789295A - Electrical cut-out. - Google Patents

Description

No. 799,295; I PATENTED MAY 9, 1905. w. C. PACKARD.

ELECTRICAL CCT-CUT.

APPLICATION FILED MAY 9, 1903.

z SHEETS-SHEET 1,

l-Y @zZ/27% @Humanas I PATBNTED MAY 9, 1905.

W. D. PACKARD.

ELECTRICAL CUT-OUT.

APPLICATION FILED MAY 8, 1903.

attotnus Patented May e, 1905.

PATENT OFFICE.

VILLIAM D. PACKARD, OF YIXRRN, OHIO.

ELEoTmoAL'oUT-OUT.

SPECIFICATION forming part of Letters Patent No. 789,295, dated May 9, 1905. Application led May 8, 1903. Serial No. 156,287.

T0 all whom, it Netty concern.- Be it known that I, WILLIAM D. PACKARD, a citizen of the United States of America, and a resident of Warren, in the county of Trumbull and State of Ohio, have invented certain new and useful Improvements in Electrical Out-Outs, of which the following is a specification.

The present invention is particularly applicable for use with transformers for hightension currents, although certain of its features Inay be used in other classes of switches and cut-outs.

The invention will be described in detail in connection with the accompanying dravings, in which- Figure 1 is a vertical section on the line A of Fig. 2. Fig. 2 is a similar section on the line B of Fig. 1. Fig. 3 is a perspective view of the switch-lever removed from its casing, and Fig. 4 is a section on the line C of Fig. 2. Figs. 5 and 6 are views similar to Figs. 1 and 2, showing a different form of switch-lever.

The particular form of switch or cut-out illustrated in the drawings is designed for outdoor use, provision being made for keeping out rain and for connecting it to poles or buildings.

The parts are connected to a casing or body 1, which is preferably constructed of porcelain or other durable non-conducting material. The body is generally bell shape, being closed at the top and provided with a skirt 2, extending below the electrical connections to prevent access of water to them. It is provided with suitable openings 3 for supporting-screws. A circular cap 4 is connected to the body, the rim or skirt of the cap extending beyond the body to shed water. The upper end of the body is partially tapered or conical, and the cap has a conical recess on the under side in which the body iits. A plug or stem 5 of conducting material extends through a central vertical opening in the top of the body, the upper end of the stem being threaded, while the lower end is in the form of a flat blade 6, extending into the central opening 7. The stem 5 is connected to the body by a nut S, and a second nut 9 is provided for clamping the incoming conductor 10 to the stem. The conical top of the body is provided with one or more grooves 11 to receive the conductor. The cap 4, which is also formed of porcelain or other durable non-conducting material, is provided with a threaded opening adapted to engage with the spindle 5. As shown, a nut 12 is embedded or cemented in the cap for this purpose.

A switch-lever 13, which is formed of porcelain, iiber, or other suitable non-conducting material, is provided with clips 14 at itsA upper end which receive between them the blade 6, and at its lower end it is provided with a blade 15, which coperates with clips 16 on'the body. The clips 14 are of spring material and are provided with, a bindingpost 17, fromV which a conducting-wire 1S extends to a second binding-post 19, connected with the blade 15. The parts 6 and 14 form a knife-switch7 and have a sufficient 'frictional engagement to sustain the lever in its working position in the cut-out and also to hold it in any position it may be placedthat is, either with the circuit openor closed. The knife-switch 15 16 is arranged at right angles to the. switch 5 14, and the latter forms the pivotal point about which the lever works to open and close the former. ln both cases we have a rubbing contact which keeps the parts in good working order. The lever can be removed by simply opening the switch 15 16 and then pulling it out of the casing, thus providing for inspection or repairs and also providing for permanently breaking the circuit when it is desired to do so. The switchlever is provided with a suitable handle 20, extending below the skirt ofthe casing. The terminal 21 of the line-circuit is connected to a binding-post 22, attached to the clips 16.

Referring to Figs. 5 and 6, the lever therein shown has a socket 23 'for receiving an inclosed plug-fuse 24, which serves as a conductor and a fuse in the usual manner. This plug-fuse has a metal cap 25 at its upper end which is engaged by spring-fingers 26, connected to a head on the stem 5. The frictional contact between the head 25 and said fingers is snilicicnt to hold the switch-lever in place. Said parts also form a pivot about IOO which the switch-lever turns. A metal cap 27 on the lower end of the plug-fuse is engaged between spring-lingers 28, similar to the spring-fingers 26. These latter springiingers are rigidly anchored in the switchlever 13, and they are connected electrically with the plate 15, which coperates with the clips 16.

The operation of the switch shown in Figs. 5 and 6 is practically the same as of the switch previously described. It will be noted, however, that it also includes the plug-fuse and that said fuse may be uickly removed and replaced, being held on y by frictional contact with the clips or spring-lingers 26 28.

It will be noted that in bothforms of switch shown a switch-lever is heldin place frictionally and may be readily withdrawn fromits housing and that it turns about the point-.of frictional engagement with the fixedclipsin the housing.

Having described.l my invention, what I claim, and desire to secure by Letters Patent, is`

1. An electrical cut-out comprising a hollow body open only at its lower end, and a switch-lever adapted to be insertedand-withdrawn at the lower end of the body, a switch for connecting the upper end of the lever to the body electrically andmechanically, and a second switch adapted to be opened and closed by the swinging of; the` levery about said lirst-named switch.

2. An electrical cut-outl comprisinga hollow body of non-conducting material open only at its lower end, an electrical connection between the interiorand exterior at the4 upper end, a switch-lever within thebody and in contact with said connection, anda cap of non-conducting material removably secured to the upperendof the body andadaptedto protect the electrial connections.

3. An electrical cut-out comprising a hollow non-conducting body open at its lower end and having a conical upper end with one or more exterior grooves therein to receive an electrical terminal, a cap having a conical recess in its lower side adapted to lit closely over the body, and means for connecting the cap to the body.

4. An electrical cut out comprising a switch-lever and two iiXed terminals, said switch-lever having a knife-switch at one end connecting with one terminal and a knifeswitch at the otherfendatfright angles to the first-named knife-switch and adapted to connect with the other terminal whereby said switch-lever is provided with rubbing contacts and is readily removable.

5. An electrical cut-out comprising abody, a lever within the body, a detachable plugfuse located within the lever, contact plates or fingers connected with the lever and engaging said plug-fuse to hold the same within .the lever, an ,contactplates or lingcrsconnected with the body and arrangedl toengage the. opposite end of said plug-luse and to holdthe lever removable within .the body.

6. Anelectrical cut-out comprising ahollow body of non-conducting material :open at its lower end, an electrical connection passing throughthe uppervendiof saidibody, contact plates or ingers inthe upper endof the body, a levenwithinzthe body having similar contacti platesoriingcrs, a removable plugfuse connecting the contact plates orlingers on the lever-with the, contact plates or fingers onthe body, andia knife-switch adapted to connect the lever at the terminal Aatthe lower end of the body.

7. An electricalcut-out comprisingahol.- low body of non-.conducting material open at its lowery end, two contacts within saidbody adapted to have the terminals.ofganelcctric. circuit. connectedi therewith, and; a. switchlever adapted to electrically connectsaid contacts andito successively breakthe. circuit at said ,contacts as itis moved irstlaterally and then longitudinally.

In. testimony whereof ly have signed my name to this specilication in the presence, ol twofsubscribing witnesses.

NILLIAM D. PACKARD.

Witnesses:

G. B: Posr, F. C. MARCH.

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