(No Model.
)
0. L. COPPIN.
_ PROCESS OF ELECTRIC WELDING.
No. 395,878. Patented Jan. 8, 1889.
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witnesses. 4 Inventor‘
N. PETERS. phnlbulhognpheh wnhingm». a. c,
UNITED STATES PATENT OEEICE.
CHARLES Ii. (‘OFFIN, OF DETROIT, MICHIGAN.
PROCESS OF ELECTRIC WELDING.
QI’EGI'FICATION forming‘ part of Letters Patent No. 395,878, dated January 8, 1889.
Application ?led September 18, 1888. Serial No. 285,742, 1N0 model.)
To all whom it may 0072100771,: ‘articles A A’ the are is sprung, conneetml
Be it known that I, CHARLES L. COFFIN, of t with the other pole ofthe generz‘itor, as by the
Detroit, in the county of \Vayne and State of §wire \V; and 13 represents a holder. (1) Un
ItIichigan, have invented a new and useful 1 Either one otthe conductors in Fig‘. l in the
Improvement in the Process of Electric IV eld drawings, t‘, and the conductor t‘ in Fig. 2 are
ing‘, of which the following is a speci?cation. made wholly or partly of metal suitable to re
)[yinvention is an improvement for process ‘ enforce the welded joint, varying‘, ot‘ course,
of electric welding, relating to the welding‘ of with the material to be welded.
metals by subjecting the same to the action ; In Fig.1 I have shown the conductor (‘ made
IO of a voltaic arc; andit consists inreent'orcing ' entirely of metal, and in Fig. 2, as shown, the
the joint by making one of the conductors j lower end of conductor C ismade of metal.
between which the are is sprung which trav It is evident that as the conductor is drawn
erses the joint ‘of metal, so that when fused along‘ the joints to be welded the arc will t'use
by the are the molten metal will fall on and not only the articles to be welded, but will
re-enforce the'joint. also fuse the metallic conductor, and that the
In the drawings, which are really illustrat molten metal will fall upon the joint and be
ing‘ diagrams, Figure 1 represents my process come incorporated with and rc-ent‘orce the
applied to that system of welding in which same.
the are is sprung between. two independent \Yhat I claim as my invention, and desire to
conductors, and Fig. 2 represents my inven secure by Letters Patent, is——
tion as applied to that system of electric weld The process herein described of welding
ing' in which the are is sprung between a con twoarticles together, which consists in sub
ductor and the material to be welded. jecting the articles to ‘the action of a voltaic
In Fig. I, A A’ represent the articles to be are ofwhich one’pole is metal conductor, fus
welded; C C’, the conductors between which mg said conductor, depositing- the molten
the are is sprung‘, connected with the poles metal on the joint of the two articles, and re
of an electric generator, as by the wires \Y; ent'orcing said joint by such molten metal,
and B represents the carbon-holder. substantially as set forth.
In Fig. 2, A A’ represent the articles to be CHARLES I.. (‘UFFIK
welded, connected with one pole of a genera \Vi t'nesses:
tor of electricity, as by the wire \V. 0 rep I'IENRY 13. Lo'rnmP,
resents a conductor between which and the ADELAIDE A. Axnnnsox.
