US1730397A - Electrode holder for electric-arc welders - Google Patents

Description

Oct. 8, 1929. Q WAGL|E 1,730,397

ELECTRODE HOLDER FOR ELECTRIC ARC WELDERS Original Filed June 29, 1927 /l/ Inventar r PV@ Zz'e,

ttorney Patented st. 8, 1929 UNITE STATES PATENT ori-*ica CARL WAGLI'E, OF BALTIMORE, MARYLAND, ASSIGNOR OF ONE-HALF TO CHARLES F. W. SCHROEDER, OF BALTIMORE, MARYLAND- i ELECTRODE HOLDER FOR ELECTRIC-ARC WELDERS Application ined June 29, 1927, serial My invention rela-tes to electrode holders for electric arc Welders and has for its object to provide a simple and practical device l of this character embodying a bifurcated plate of spring steel adapted to firmly secure one end of. the electrode 1n adjusted angular position between the same, one of the sections of said plate having a lug formed thereon to provide a fulcrum for the engaged end ot lo the electrode whereby to permit the same to be easily and quickly swung into its various angular positions, the inner end of said plate being formed into a threaded shank forming a convenient means for (onnecting an electric cable to the plate and for carrying an insulated handle for the operator of the tool.

A further object is to provide a guard plate covering one side of the electrode retaining plate and protecting the edges of said electrode plate as well as the lug formed thereon from Contact with objects during the working of the tool whereby to prevent grounding or" the current by said plate.

A still further object is to provide a tool of this character of simple, strong and durable construction, eficient and reliable in performance, relatively inexpensive to manufacture, and otherwise well adapted for the purposes for which the same is intended.

Other objects and advantages reside in the special construction, combination and arrangement of the various elements forming the invention as more fully hereinafter dcscribed and claimed, reference being had to the accompanying drawings forming part hereof, wherein:

Figure 1 is a top plan View showing the tool in operative position.

Figure 2 is a longitudinal sectional view therethrough taken substantially along a line 22 of Figure 1, and` Figure 3 is a transverse sectional view taken along a line 3 3 of Figure 1.

Referring now to the drawing wherein for 3 the purpose ot illustration l have disclosed a practical embodiment of my invention, l provide an electrode holder, a plate 5 formed of spring steel including a pair of bifurcated sections open at one end and along each side and constituting an inner section 6 and outer section 7 adapted to have one endof an electrode 8 inserted therebetween and 'retained thereby by virtue of the reflex action'of said section. The inner .face of each of thefplate sections are provided with complementary grooves 9 and arranged at different angles ,on Ethe plate and extending radially with respect lto 'a .lug 10 integrallyformed at one end ofvone of said plate sections and extending transversely with respect to the edge of said plate..

The outer corner of the outer plate section 7 at. the edgethereof adjacent the lugglO is cut away as shown at 1,1 in -Fi ure l-"of the drawing, with theI under edge osaidcutaway section bevelled as indicated ait 12, more clearly illustrated in Figures Qand.. `,Tlie lug 1,0 is spaced ,fromftheedge of the vplate section to permitthe electrode 8v to be inserted 1therebetween and by forcingjthe electrode under the bevelled AedgelQ, using the lug 10 as a fulcrum, the electrode will thus be forced between the platesections 6 and 7 and seated -in' one of the :grooves 9. This construction-permits thebouter end of the electrode to be easily.' and quickly moved into any desired angle with v,respect tothe plate to adapt the tool for working'under various conditions. l A e A metallic guard plate 13 is arranged at one side of the holder, said guard plate beingof a substantially channel-shaped formation in cross section as shown in Figure 3 and provided witha flange 14 along one side thereof and a substantially arc-shaped ange 15 at its opposite side adapted to be spaced from the adjacent edge of the holder to accommodate the lug V10. The guard plate is arranged at that side of the holder adjacentthe inner section 6 and has interposed therebetween a pair of insulation plates 16 and 17, the plates 16 being arranged adjacent the guard plate and secured thereto by screws 18 which also extend slightly into the plate 17 arranged adjacent the inner section 6 with the insulation plate 17 being secured at its outer edge tothe inner section 6 by rivets 19 and at its inner end similar rivets which eX- tend through both sections of the plate.

.The inner end of the plate 5 is formed into a shank 2O having a threaded end 21,'an anrio' nular flange 22 being formed between the plate and the threaded end. The threaded end of the shank is adapted to be inserted in one end of an internally threaded sleeve 23, the opposite end of said sleeve having inserted therein the threaded end of a cable connector 24 to the outer end of which the cable 25 providinga suitable electric current is attached. A tubular handle 27 is arranged about the sleeve 23, said handle being formed ofnonconductive material and as a further protection therefor an insulated sleei'e 2,6 is interposed between the lhandle and the sleeve 23. The flange 22 is of suicient diameter to abut against one end 'of the sleeve'26, the diameter of the flange Vand said sleeve being vequal whereby to permit` the handle 27 'to be insei-ted over each thereof. In this manner a safe and adequate gripping surface is pro-- vided on the handle for the workman.

It is believed the4 foregoing description thoroughly discloses the construction and operation of the tool without further explanation thereof. I t is obvious that the invention is susceptible to various changes and modifications without departing from the spirit thereof or the scope of the appended claims and I accordingly claim all such forms of the device to which I am entitled.

I claim:

1. In a tool of th'e class described, an electrode holder having means for selectively securing the electrode in adjusted'angular position with respect to the holder and means formed on the holder for engaging the secured end of the electrode whereby to constitute a pivot therefor.

2. In an electrode holder, an electrode attaching plate having means carried thereby for securing the electrode in adjusted angular position and a lug formed on the plate4 and co-acting with the electrode constituting a fulcrum for moving the same into its var-ious angular positions.

3. In an electrode holder, an electrode retaining plate, a lug formed at one side thereof, means carried by the plate extending radially from said lug for securing the electrode in adjusted angular position, said lug constituting a fulcrum cooperating with said electrode wherebyto move the same into engagement by said retaining means.

4. In an electrode holder, abifurcated plate having its sections formed of spring-like material and adapted to have one end of an electrode inserted therebetween, and a lug formed at one side of said plate, means extending radially from said lug adapted to secure the electrode in adjusted angular position with respect to the plate, said lug co-acting with the electrode to form a fulcrum for moving the former into various angular positions and a handle for the plate.

5. In a tool of the class described, an electrode holder comprising a bifurcated springplate sections having a cut-away bevelled corner adjacent said lug, said lug and said bev- `elled edge coacting to permit the electiLode to be readily inserted between the sections of theplate,a guard plate at one side of the bi- 'i furcated plate, insulation plates interposed therebetween, a shank formed'on the elecgtrode plate having a threaded end for insertion in one end of an internally threaded sleeve, a cable connector threadedly carried in the' opposite end of said sleeve and an insulated handle arranged on said sleeve.

In testimony whereof I affix my signaure.

CARL WAGLIE.

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