US1119872A - Electrode-holder. - Google Patents

Description

H. J. POTTS.

ELECTRODE HOLDER.

APPLICATION FILED 111:0. 2a, 1912v Patented Dec. 8, 1914.

UNTTED STATES PATENT OFFICE;

HILLARD, J. POTTS, OF KANSAS CITY, MISSOURI.

ELECTRODE-HOLDER.

Application filed December 23, 1912.

To all whom it may concern:

Be it known that I, HILLARD J. Porrs, a citizen of the United States, residing at Kansas City, in the county of Jackson, State of irlissouri, have invented certain new and useful Improvements in Electrode-Helders; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to electrode holders and has for an, object to provide a device of this character which will hold ditlerent sizes of electrodes just as securely as the larger lengths of electrodes, and will be rom 'iosed of a minimum nun'iber of simple parts that will not easily get out oil order.

W'ith the above objec in view the inven tion consists of certain novel details o't construction and combination of parts hereinafter fully described and claimed, it being understood that various modifications may be made in the minor details of construction within. the scope of the appended claims.

in the a ecoinpanying drawing forming part oi this specification: Figure 1 is a side elevation of the holder. Fig. 2 is an end elevation of the holder. Fig. 3 is a longitudinal sectional view through the holder. Fig. 4: is a cross sectional view taken on the line 4 4 Fig. l.

Referring now to the drawing in which like characters of reference designate similar parts, 10 designates the body of the holder which is substantially triangular in cross section and is provided on the bottom with an attaching base 11. The holder is provided above the base with a laterally projecting lug 12 in which is formed a threaded opening 18 in which an adjusting screw l l-v disposed, this adjusting screw extending longitudinally of the holder and having the threads on one side mutilated to torin a flat face 15 that extends longitudinall y from end to end of the adjusting screw.

The lug 12 is terminally bifurcated to term hinge cars 16, and between these hinge ears a resilient clamp arm 17 is interposed, the clamp arm having the lower end curved abruptly inwardly as shown at 18 below the hinge ears and bearing terminally against the flat face 15 of the adjusting screw, while the upper end 19 of the arm is bent inwardly to overlie the tip of the adjusting screw and is terminally bent outwardly as shown at 20 Specification of Letters Patent.

Patented Dec. 8, 1914.

Serial No. 738,276.

to form a guide surface which facilitates insertlon of the electrode 21 between the V- shaped inner face of the holder and the free end of the clamp arm. A retaining pin 22 is passed through alined openings 23 formed in the hinge ears and bears against the outer face of the clamp arm, this pin serving to bind the clamp arm against the adjusting screw and against the electrode. The clamp arm is formed with shoulders 2 t on the side edges which engage with the top edges of the hinge cars and prevent gravitation of the clamp arm when the electrode is removed.

By virtue of the clamp arm bearing tightly against the flat face of the adjusting screw, the latter will be prevented from accidental retrograde movement, while at the same time the adj listing screw may be manually advanccd to move the electrode longitudinally beyond the end of the holder. l urthermore, by virtue of the clamp arm free end overhanging the tip of the adjusting screw, short lengths of electrodes may be inserted in the holder and will be securely held by the clamp arm regardless of whether the adjusting screw contacts with the electrode or not. All the figures show the electrode as partly consumed and the set screw in position to hold the electrode projecting properly from the holder at this stage.

The attaching base 11 is beveled at the edges as shown at 24L and one corner is cut away as shown at 25 to facilitate entry of the base into the ordinary lamp clamp without obstruction. A V-shaped notch 26 is formed at the tip of the spring to produce sharpened edges which penetrate and remove scale during rotation of the electrode.

What is claimed, is

1. An electrode holder including a body having an electrode receiving face, a lug projecting from said face, an electrode adjusting screw threaded through said lug, and an electrode leaf spring clamp held intermediate the ends by said lug and having one end overhanging the tip of said screw and having the other end abruptly bent toward and terminally contacting with said screw below said lug.

2. An electrode holder including a body, a lag projecting from said body, an adjusting screw threaded through said lug and extending longitudinally of said body, and having a fiat longitudinal face, and an electrode leaf spring clamp held intermediate the ends by said lug and having one end overhanging the tip of said screw and having the other end bent toward and terminally contacting with said flat face below said lug.

3. An electrode holder including a body, a lug projecting from said body, an adjusting screw threaded through said lug and extending longitudinally of said body, an electrode leaf spring clamp held intermediate the ends loosely upon said lug and having one end overhanging the tip of said screw and having the opposite end bent toward and contacting with said screw below said lug and means or normally holding said clamp against movement longitudinally of said body.

4. An electrode holder including a body,

a lug projecting from said body, an adjusting screw threaded through said lug and extending longitudinally of said body, said lug being terminally bifurcated to form cars, a pin carried by said ears, and an electrode leaf spring clamp confined between said cars by said pin and having one end overhanging the tip of said screw and having the opposite end terminally bent toward and contacting with said screw below said lug.

In testimony whereof, I aflix niy signature, in the presence of two witnesses.

HILLARD J POTTS.

Vitnesses WILLIAM F. Porrs, E. J. ANDREWS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. C.

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