US920364A - Ground-wire attachment. - Google Patents

Description

C. W. MESSNER.

GROUND WIRE ATTACHMENT.

APPLICATION FILED FEB. 26, 1908.

920,364, Patented May 4, 1909.

Inmate r M, W Ju /MW, WW Lewes Z fig UNITED STATES CHARLES W. MESSNEB, OF PHILADELPHIA, PENNSYLVANIA.

GROUIT -WIRE ATTACHMENT.

Specification of Letters Patent.

Patented May 4, 1909.

Kpplication filed February 26, 1908. Serial No. 417,970.

tachment, of which the following is a specification. I

This inventlon relates to attachments for forming ground'connections for electric C11- cuits; and has for its principal object to pro-- vide a simple, durable, efficient and comparatively inexpensive form of device that may be readily connected to or disconnected from conducting objects as water or gas pipes or conduits of various sizes; and a further object is to provide an attachment constructed in a manner hereinafter referred to adapted to receive the bare end of a ground wire so that a soldered contact ma be readily and conveniently made aroun all parts-of the wire and a still further object is to provide a one piece device wherein any leaking current will pass in an uninterrupted manner through the same to the conducting object.

Other objects of the invention will appear hereinafter.

The invention consists of the im rovements hereinafter described and nally claimed. 1

The nature, characteristic features and scope of the invention will be more fully understood from the following description taken in connection with the accompanyin drawings forming part hereof and m whic Figure 1, is a plan view of a metallic strip duly stamped from a blank and adapted to be formed in accordance with the invention. Fig. 2, is a view in central section of the same. Fig. 3, is a view in elevation illustrating the strip when properly bent into the form of an attachment embodying the invention. Fig. 4, is a top or plan view'thereof. Fig. 5, isa similar view i lustrating the manner of-forming connection with a conducting object, and Fi 6, is a view in cross section, drawn to an enlarged scale, and illustrating asimilar connection..- I p In carrying out the manufacture of the attachment of the invention it has been found that good results may be obtained by stamlping from comparatively thin metallic blan s if copper, brass or other, good conductive material, a one piece elongatedstrip 1, see Figs. 1 and;2, having at one of its shorter ends a generally V-shaped, centrally arranged, comparatively lar e notch 2, and upon each side thereof sma ler notches 3, of the same general shape as the first mentioned notch. The corners of the opposite end of t-hfi strip 1, are cut off as at 4, and at its upproximate center has stamped therefrom oppositely disposed tongues 5. Apertures suitable for the passage therethrough of clamping bolts, hereinafter referred to are drilled in the strip 1, as at 6. The above described strip is then bent to conform to the conducting object to which it is to be applied, see Figs. 3 and 4, and in this respect it may be remarked that a generally circular band 7, is provided in the present instance and is adapted for application to a pipe 14, the said band terminating in flat outward extensions or ears S and 9, of which the ear 8, is slightly longer, than the ear 9. As is clearly illustrated by this formation the openings 6, are arranged in 'alinement, one above the other, as are the lips 5, it being understood that when the str psl is bent into proper form these lips 5'jproje 't within the band 7, of the attachment and erve to scrape the ipe 14, when the attachment is clamped and bolted thereto, thus insuring a bright, clean and ermanent contact. The outer end or notclied portion of the ear 8, is rolled or turned over as it were to form a tubular socket 10, for the reception of the bare end of a ground wire 11, the socket being so arranged that the wire within the socket is held parallel with the pipe 14. In this connection the V-sha ed notches afford convenient means for solc ering the ground wire within the tubular socket 10. The method of so soldering the wire consists of first heating, preferably by means of a soldering iron, the wire within the socket and then applying a flux and, while the wire is still hot applying solder to the notched portion of the socket which by reason of the said notches, freely flows within the socket and around the wire within the socket thus making a soldered contact that is neat in appearance and effective in operation. In this connection it may be remarked that the larger sized notch is used particularly for the insertion of solder and the smaller sized notches provide means whereby the workman may readily ascertain whether or not the solder so a plied has been caused to flow throughout t e entire length of the socket. It is important to have the solder flow throughout the entire length of the socket in order to provide a good connection.

The attachment may be clamped to a pipe or conduit by means of the clamping bolt 12, that passes throughthe apertures 6, in the ears or extensions 8 and 9, and is provided with a nut 18, in which the bolt is turned to draw the ears 8 and 9, together to closely embrace the pipe 14, see Figs. 5 and 6, and the attachment being of one piece and c01nparstively thin metal a more or less resilient device is provided which obviously is advantageous in securing the same to a pipe or con duit. Also being a one piece device, any cur rent that cusses to the pipe or conduit, does so directly Without interruption such as would he caused by tvvo parts overlapping or by passing through binding screws or bolts and nuts.

What I claim is:

1. An attachment of the class recited comprising a member terminating in a substantially flat extension, the outer end of which formed into sleeve, having a longitudinally notched edge.

2. An attachment of the class recited comprising e member terminating in s substantially fiat extension, the outer end of which is formed into a sleeve, the longitudinal e ge of which is notched, said edge be ing arranged adjacent to said extension.

3. ettachment of class recited comprising a member terminating in a sub stantially flat extension, the outer end of Which is, formed into a sleeve, having a series of solder receiving openings.

senses 4. An attachment of the class recited comprising a member terminating in a substantially fiat extension, the outer end of which is formed into a sleeve, having a comparatively large centrally disposed solder receiving opening and being provided upon opposite sides of said opening with compara rively smell openings.

5. An attachment of the class recited comprising a member terminating in a substantially fiat extension, the outer end of which is formed into a sleeve, having sub stantially ii-shaped solder receiving openings.

5. An attachment of the class recited comprising a member terminating in a substantially flat extension, the outer end of which is formed into a sleeve, having a comparatively large centrally located V-shaped solder receiving opening, and having arranged upon opposite sides of said opening comparatively small ti-shaped o enings.

7. An attachment of the c ass recited comprising a general sleeve-like member constituting a Wire receiving socket, said socket being provided with a series of openings for the flowing of solder throughout the entire length of the socket. r

In testimony whereof I have signed this specification.

CHARLJS W. MESSNER. Witnesses ROBERT JAMns Enemy, WILLIAM J. Jsorrsou.

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