US491604A

US491604A - Charles e

Info

Publication number: US491604A
Authority: US
Publication date: 1893-02-14
Anticipated expiration: 1910-02-14

Description

(No Model.)

G. B. SGRIBNER.

ELECTRIC ARG LAMP.

No. 491,604. Patented Feb.14, 1893.

STATES PATENT Orricn.

CHARLES E. SCRIBNER, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE WESTERN y ELECTRIC COMPANY, OF SAME PLACE.

ELECTRIC-ARC LAMP..

SPECIFICATION forming part of Letters Patent No. 491,604, dated February 14, 1893.

Application filed October 30, 1890. Serial No, 369,797. (No model.)

To all whom it may con/cern: freely through its guide the guide will not be Ile it known that I, CHARLES E. SCRIBNER, loaded with the weight of the rod and hence a citizen of the United States, residing at Chiwill hold the cut out open. If, however, the cago, in the county of Cook and State of Illrod shall stick in the guide so that any connois, have invented a certain new and useful siderable amountof the weightof the rod shall 55 Improvement in Automatic Cut-Outs for Arc rest thereon, this increase of load will canse Lamps, (Case No. 233,) of which the following the guido to yield and thus close the shunt at is a full, clear, concise, and exact description, the cut out. reference being had to the accompanying My invention will be more readily underio drawing, forming a part of this specification. stood by reference to the accompanying draW- 6o My invention relates to electric arc lamps ing, in which-I have shown a side elevation and its object is to provide mechanical means of an electric are lamp partly in section einoperated,automatically by the rod at a certain bodying my invention. The circuit et may be point in its descent or whenever the descent traced through thelifting magnetband thence of the rod may be impeded, whereby the lamp to the frame of the lamps, thence through the .65 maybe shnnted out of circuit. Thus the circarbons c, and thence out to line. An ordicuit maybe maintained around a lamp which nary line wire feeding magnet dis connected has ceased to feed, or one in which the carin the shunt around the carbons c and acts in bons have been consumed. Heretofore out the usual manner to operate the clutch to feed zo outs dependent upon the position of the clutch the carbon as the carbons are consumed. The 7o mechanism, and hence upon the length or guide e for the carbon rod may be of any electro motive force of the arc have been emsuitable form, but it must be provided with a DlOYedyielding support in order that it may be low- My invention herein consists, speaking genered whenever the weight of the rod or a suberally, in providing` yielding guides for the stantial portion of the weight of the rod is 75 carbon rod in connection with a circuit closer placed thereon. I have provided the adjustadapted to be closed whenever thekguides able iiat springs fg upon which the yoke e shall be loaded with the Whole or any considerformingtheguideis suspended. These springs able portion of the weight of the rod. The f g are secured each at one end to thefraxne 3o cut out is placed in the circuit of a direct of the lamp and upon their projecting free 8o shunt around the lamp. The main circuit exends the yoke e is mounted. Thus by means tends through the lifting magnet, and thence of the yoke e provided with openings through through the carbons and ont. The shunt cirwhich the rod passes and the springs fg I cuit extends from the main circuit before provideayielding guide furthe rod. Vhenreaching the lifting magnet to a contact of ever the rod passes freely through the open- 85 the cut out carried upon or controlled by the ings in the ends of the yoke the springsfg yielding orswinging guide, the opposing conwill be loaded only by the Weight of the yoke tact of the cut out being preferably fixed, and itself. If, however, the rod should stick in from the opposing or fixed out out the shunt the guide a portion of the Weight of the rod 4o circuit may be extended directly to the line will be placed upon the springs f g, and thus 9o out. Thus when the Vcut out is closed the they will be flexed and the guide will belowlamp is directly short circuited. ered. A suitable stop h provided on the rod Any suitable mechanical means directly opis so placed that when the carbons are conl erated by the weight of the rod being transsnmed or nearly so this stop h will rest upon ferred thereto from the clutch mechanism may the guide e, thus bringing the weight of the 95 be employed. rod upon the guide, thereby loading the In my invention herein I have mounted the springsfg with the weight thereof so as to guide for the rod upon a yielding support and lower the position of the guide. Now it is placed one of the contacts of the cut ont upon this yielding rod guide or other suitable mech- 5o this yielding guide. When the rod passes anism, the position of which is changed by roo the Weight of the rod being transferred thereto from the clutch, which in connection with a circuit closer t' constitutes myinvention. The contacts of the circuit closer or cut out are included in the direct shunt k around the lamp; these contacts being controlled by the yielding rod guide, or, speaking more particularly, by a portion of the lamp mechanism which is adapted to be changed as to position by the Weight of the rod being placed thereon. Speeiiically I have shown the lower contact of the cut out stationary, While the upper contact is mounted upon an arm extended from the yielding yoke or guide e. The tension of the springsfgis so adjusted that the cut out Will be closed when the springs are loaded by a a Whole or substantial part of the weight of the rod 7i, and whenever such Weight is removed the tension of the springs will act to raise the guide e so as to open the cutout.

I have thus described speciically one form of my apparatus. It is evident, however, that my invent-i011 admits of various modifications which would readily suggest themselves io those skilled in the art and I theretore do not limit myself to the details of construction shown.

Having thus described my invention I claim as new and desire to secure by Letters Iatent:-

l. A direct shunt around an electric lamp, said shunt containing a circuit closer, in combination With the carbon rod and a yielding guide for the carbon rod adapted to maintain said eut out opened or closed accordingly as the weight of the rod is placed upon or removed from the said yielding guide.

2. The combination with the carbon rod of an electric arc lamp, of a yielding guide therefor, Contact points controlled by said guide to be closed when the Weight of the rod comes upon the guide, and a shunt circuit about the lamp including said contact points, substantially as described.

In Witness whereof I hereunto subscribe my name this 23d day of October, A. D. 1890.

CHARLES E. SCRIBNER.

Witnesses:

ELLA EDLER, Gnonen L. CRAGG.