US1722353A - Connecting terminal for electrical conductors - Google Patents

Description

July 30, 1929. w R 722,353

CONNECTING TERMINAL FOR ELECTRICAL CONDUCTOR'S Filed Dec. 7.192s

Patented July 30, 1929.

UNITED STATES 1,722,353 PATENT OFFICE.

WILLIAM HARRY RAY, OF CHICAGO, ILLINOIS, ASSIGNOR TO WESTERN ELECTRIC COMPANY, INCORIPORATED, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

CONNECTING TERMINAL FOR ELECTRICAL CONDUCTORS.

Application filed December This invention relates to-connecting terminals for electrical conductors, and more particularly to an electrical connecting terminal for telephone jacks.

' The principal object of the invention is to provide a simple and inexpensive terminal to which an electrical conductor may be readily and securely connected.

In accordance with the general features of the invention, there is provided, in one embodiment thereof, a telephone jack having a plurality of differently shaped connecting terminals arranged in avertical row. Each terminal is formed with a hook portion of reduced cross section having oppositely disposed outwardly projecting portions which cooperate to properly position and prevent displacement of a conductor connected thereto. The hook portions are so relatively disposed as to be readily accessible. 1

Other features and advantages of the invention will become apparent in the following detailed description, reference being had to the accompanying drawing, wherein Fig. 1 is a fragmentary plan view of a strip of acks each having a plurality of connecting terminals embodying the features of the present invention;

Fig. 2 is an end view thereof, and

Figs. 3, 4 and 5 are enlarged fragmentary detail views of one of the improved terminals showing a preferred method of connecting a conductor thereto. 1 The invention is herein illustrated and described in connection with a telephone jack, such as is commonly employed in switch boards of telephone exchanges for interconnecting telephone lines. It should be understood, however, that, a connecting. terminal embodying the features of this invention is capable of other applications and the novel features thereof should be limited only by the scope of the appended claims.

Referring now to the drawing in detail, the numeral 10 indicates,- generally, a jack mounting of a well known type commonly used intelephone exchanges, and comprises a plurality of jacks 12 supported by a plate 13.

The jacks are adapted to be electrically conshown) which cooperate with the ack to control telephone circuits within which they are connected. The general construction of the jack mounting may be of any well known nected to and disconnected from plugs (not 7, 1925. Serial No. 73,579.

type, and since the present invention is notv part cularly concerned therewith, a further detailed description thereof is believed to be unnecessary.

The jacks 12 are each provided with a plu- I rality of connecting terminals 15, 16 and 17 which are preferably arranged in a vertical rowand differently shaped to permit ready access to each terminal for connecting an electrical conductor thereto. Angularly disposed hook portions 18 of reduced cross sec tion are formed at the ends of the body por tions of the terminals 15, 16 and 17 and each hook portion is provided at its end with outwardly projecting oppositely disposed portions 19 and 20 (Figs. 3,4 and 5) forming an enlarged head which cooperate to properly position and prevent displacement of an electrical conductor 21 connected thereto.

A preferred method of connecting a conductor to the improved terminal is illustrated in Figs. 3, 4 and 5 of the accompanying draw-. ing. The end of the conductor is looped around the neck of the hook portion 18 from underneath and terminating thereabove as shown in- Fig. 3.. The end of the conductor is then bent substantially at right angles and extended'across the bottom face ofthe terminal between the portion 20 thereof and the conductor 21 (Fig.4). The conductor is then soldered to the terminal as indicated at 22, and the end portion of the conductor is sevi cred even with the gaugin edge of the terminal, as shown in Fig. 5. t lome of the solder passes underneath the portion 20, as shown by the dotted line 23 (Fig. 5), thereby insuring a secure connection.

The above described connecting terminals may be manufactured from sheetinetal by one operation and are therefore compara-v tively inexpensive. Furthermore, electrical conductors may be readily and securely attached to terminals embodying this invention without the use of any particular skill or experience. Also, the particular form of bends that a conductor is subjected to when fastened to a terminal of this type materially aids in rendering the soldered connection permanent'.

What is claimed is:

1. Ina telephone jack, a connecting terminal consisting of a piece of metal of tapering width, the narrower portion of which is substantially at right angles thereto, said por tion having opposite projections at the end and in the same plane thereof, and being substantially at right angles to the portion.

2. Inatelep'hone jack, a connecting terminal for electrical conductors having a hook portion for receiving a conductor therein, and an enlarged head portion formed at the end of said hook portion having oppositely disposed projections in the same plane to prevent displacement of the conductor.

3. In a telephone jack, a connecting terminal for electrical conductors, comprising a member having a hook portion and outwardly projecting portions formed at the end thereof in the same plane as the hook portion and designed to position and prevent displacement of a conductor held in the hook portion.

4. In a telephone jack, a connecting terminal for electrical conductors, comprising a member having a body portion, a hook portion of reduced cross-section extending at an angle therefrom for receiving a conductor therein, and an enlarged head portion formed at the end of the hook portion having oppositely disposed projections in the same plane as the hook. portion to prevent displacement ofthe conductor, said head portion terminating in a gauging surface for end of the conductor.

5. In a telephone j ack, a connecting terminal for electrical conductors having an elongated body portion, a hook portion of reduced cross-section extending at an angle therefrom and an enlarged head ,portion formed at the end of and having projections positioning the for positioning the end of the conductor.

6. In a telephone jack, a connecting terminal for electrical conductors having a body portion, a hook portion for receiving a conductor and a head portion having a pro ection extending transversely from the end thereof and in the same plane as the hook portion to prevent displacement of a conductor from the hook portion,one of the projec-' tlons presenting an edge angularly disposed relative to the hook portion to deflect the end portion ofa conductor away from the remainder thereof during the looping of the conductor around the hook portion.

7. In a telephone jack, a tapering terminal, a conductor longitudinal of the terminal, a hook portion on the terminal to receive the conductor, two opposite projections of the end of the hook portion in the same plane as the hook portion to prevent displacement of the conductor from the hook portion, the end of the conductor being positioned after one revolution around the hook portion between oneof the aforementioned projections and the main portion of the conductor.

In witness whereof, I hereunto subscribe my name this 20th day of November, A. D. 1925.

WILLIAM HARRY RAY.

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