US1045948A - Electrode for welding. - Google Patents

Description

W. B. CLEVELAND & W. HUBER. ELECTRODE FOR WELDING. APPLICATION FILED MAR.-15. 1909,

1,045,948. I Patented Dea3,1912

WV/msses/ 1 gm a " UNITED STATESPATENT orrron WILLIAM B. CLEVELAND AND WILLIAM E. HUBER, 0F CLEVELAND, OHIO, ASSIGhlORS TO THE ELECTRIC RAILWAY IMPROVEMENT COMPANY, OF CLEVELAND, OHIO, A

CORPORATION OF OHIO.

ELECTRODE FOR WELDING.

1 ,oaaoas.

'[0 all whom it may concern:

it known that we,'VViLL1AM B. CLEVE- rnnn and lViLLIAM E. HUBER, citizens of the United States, and residents of Cleveland, county of- Cuyahoga, and State of Ohio, have jointly invented a new and useful Improvement in Electrodes for Welding, of which the following is a specification, the principle of .the invention being herein explained and the best mode in which we have contemplated applying that princlple, so as to distinguish it from other inventions.

The present invention, while relating in general to electrodes for welding has regard more particularly to the construction of electrodes for usein connection with clamping and heating devices for thus weldin or brazing bonds onto rails, such bonding being now most satisfactorily accomplished thus, with the aid of the electric current. As is well understood the most suitable'ma teria'l for use in connection with electrodes of this kind, in order to develop the proper degree of heat for the purpose named, is carbon. In the use of such material, however, several difficulties have been encountered in Securing an effective and satisfactory mounting therefor, namely, the block wears away rapidly, or in other words, its outer exposed face, designed to contact with the bond that is being welded or brazed to the rail together with the adjacent lateral portions, burns up; and secondly, owing to the heating of the block, it is difficult to secure on adequate contact between the conductor member carrying the block and the latter. It is with a view then to obviate these several dilliculties, that the present invention has been devised, such invention consisting of the means hereinafter fully described and particularly pointed out in claims.

T he annexed drawing and the following description set forth in detail certain mechanism embodying the invention, sucln dis closed means constituting, however, butone of various mechanical forms in which the principle of the invention may be used.

In said annexed draw1ngs:F1gure 1 is an elevational view of a clamping and heating device adapted particularly for the bonding of rails, wherein 1S incorporated our improved construction of electrode;

Fig. 2' is a transverse sectional view of such Specification oi Letters Iatent. Application filed March I5, 1909. Serial No. 483,366.

' Patented Dec. 3, 1912.

electrode; and Fig. 3 is a front elevational view thereof, both said section and elevation being on a larger scale thanFig. l.

The apparatus shown in Fig. 1 comprises essentially a rail clamping device A,-suitof which a detached portion only is shown, so as to bring the lower end of the device in proximity to the rail ends that are to be joined. Such clamping device iscomposed of two conductor members or arms A A positioned, to rest with their lower ends against the inner and outer sides of the rail. One of the said members, the inner one A as shown, is provided at its lower end with a laterally projecting foot a adapted to rest on the top of the rail and provide electrical connection therewith. The other arm terminates in the electrode B proper, that is adapted to be brought against the side of such rail, when the inner member thus rests ber toward the inner member. To permit of such movement, the outer member A is pivotally hung from support C, while a handled shaft (1 rotatably mounted in such arm A has a screw threaded engagement with the other arm A. to efiect such drawing in movement. Current is supplied to the tors a a attached members A A It is with the details of construction of the electrode B constituting the lower end of the outer clamping member A that the present invention is concerned. The electrode b proper consists preferably of carbon, since this provides the most efficacious high resistance material for the purpose in hand. Such elect-rode, furthermore, is preferably in the form of an elongated rectangular block, the length of-which is a matter of indifference, and will depend in part upon the localityin which the device is being employed, whether confined or otherwise. For securing said block to the conductor member, a holder is provided that is adaptto the respective arms or IOWQII end of said member, said holder com prising two vertically separable parts 13 B together to adj ustably hold therebetwcen the block in question. For the reception of such ably supported from a block C or the like,

clamping device through suitable conduc-.

ed to be IIIOXfiblY clamped or bolted to the that are themselves adapted to .be clamped respectively adapted, when the device is'thus on the rail top, by drawing said outer memblock, the holder parts have their juxtaposed faces recessed, such recesses 11' b being disposed transversely of the member A, so as to hold the block in alinenient with the plane in which said member swings. Said parts furthermore have lips 1 that more or less completely inclose the lateral portions of the block adjacent to its contact face.

When in use, the forward end of the carbon block b 'constituting the electrode proper, is designed to project for a frac; tional part of an inch in front of the holder parts B B between which such block is clamped. When thus positioned, the clamping device is adapted to press a bond 0 against the rail face C, as illustrated in Fig. 1, so that upon the passage of a proper current through the conducting'members, the desired welding or brazing operation will be effected. A satisfactory.electrical connection between the electrode and its holder may be at all times assured by simply tightening up thenuts of the bolts 7) that clamp the two parts of the holder together,

the recesses in the latter for the reception and thereupon again clamped securely in place. It will be understood that the carbon block or electrode is a relatively in" expensive part of the apparatus, but that owing to the fact that heretofore in apparatus of the class in hand, said block has been so secured in the holder as to involve the discarding of thelatter along with the remnant of the block or else has involved injury of such holder, owing to the same becoming heated necessitating its being thrown away, the wearing away of the carbon has been a serious matter. This difliculty we entirely" overcome, for when one block of carbon has been used up as closely as possible, it can be discarded withoutthrowing away the holder, injury to which is prevent ed, both by securing a firm connection between the bloclr and the holder parts, and by all times keeping the contact face of the block removed a safe distance therefrom. Moreover by reason of the substantial inclosure at all times of thelateral portions copies oi this patent may be ennui-lad for five centscach, by afressine; the Commissioner E Washington, D. it?

menace the one ex )lained chan e being made as 1 L gards the mechanism herein disclosed. provided the means stated by any ot'rthe follow ing claims or the equivalent of :1 .h stated means be employed.

Vi e therefore. particularly poini out distinctly claim as our invention In 1. In. apparatus of the class destx. combination of a support, conductor ber pivoted at one end to slid supp means for securing said member in select positions about its pivotal axis. a lincq ait holder removably secured to the free end of said member, and a block of high resistance material adjustably held between said part: by friction, said parts being formed with lips adapted to inclose the lateral portions of the block adjacent to its contact face. and the recess in said parts having acombincil depth less than the thickness of said block.

2. In apparatus of the class described, the combination of a support, a conductor lllQlll: ber pivoted at one end to said support. means forsecuring said member in selected positions about its pivotal. axis. a holder, comprising two vertically separable part rcmovably secured to the free end of member. and a block of high resistance terial adjustably held between said parts by friction, the juxtaposedfaces of the parts being recessed to receive the block and limit adjustment thereof to the plane of said mein- E. bers movement, the recess in said parts hav ing a combined depth less than the thickness of said block, and said arts being formed with lips adapted to iuclose the lateral poitions of said block adjacent to its contact face.

3. In apparatus of the class described the combination of a support, a conductor member pivoted at one end to said support. means for securing said member in selected m5 positions about its pivotal axis, a hold-r, comprising two vertically separable par removably secured to the free end of member, a block of high resistance mate adjustably held between said parts by tion, the juxtaposed faces of the parts recessed to receive the block and limit adjustment thereof to the plane of said men's bers movement, the two said recesses being together less in vertical depth than the yer a ticalwidth of the said block when in posis ii jtion, and said parts being formed with lips adapted to inclosc the lateral portion of said block adjacent to its contact face.

Signed by us this 12th day of h'larch, lt li i WIIJLlIiUd B. CLEVEMHII? WILLIAM HUBER.

Attested by- Anna L. GILL, Jwo. F. @Bcnm1v.

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