US548683A

US548683A - wheless

Info

Publication number: US548683A
Authority: US
Publication date: 1895-10-29
Anticipated expiration: 1912-10-29

Description

(No Model.) 3 Sheets-Sheet 1' M. WHELESS. ELECTRIC ARC LAMP.

No. 548,683. Patented 0015.29, 1895.

ANDREW lGRMlAM. PNUTO-UYND.WASNINGTUN,D.C.

(No Model.) 3 SheetsSheet 2.

M. WHELESS. ELEGTRIG ARC LAMP.

No. 548,683. Patented O0t.29,189 5.

WWIIIIIIIIIIIIIIII AN DREW BJIRAHAM. PHOT0'UI'HU.WASHIN GTOH. DC.

3 Sheets-Sheet 3.

(No Model.)

M. WHELESS. ELEUTRIU ARC LAMP- No. 548,683. Patented Oct. 29, 1895.

.Borra Cameo I, T377 W,

AIIDIIW IfilAnAM.PHDTO'UI'HQWASNINGTON. EC.

"UNITED STATES PATENT Grates.

MALONE WHELESS, OF WASHINGTON, DISTRICT OF COLUMBIA.

ELECTRIC-ARC LAM P.

SPECIFICATION forming part of Letters Patent No. 548,68 3, dated October 29, 1895.

Application filed June 8, 1895- Serial No. 552,159. (No model.)

To aZZ whom it may concern:

Be it known that I, MALONE WHELnss, a citizen of the United States, residing at Washington, in the District of Columbia, have invented certain new and usefullmprovements in Electric Lamps; 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 an improvement in electric-arc lamps, more especially to such a lamp as is shown in my applications for United States patents filed April 27, 1895, Serial Nos. 547,393 and 547,394. The present construction illustrates the principles which are contained in such applications; but the present case shows the lamp in substantially the completed form, in which it will be made and put into use.

The invention consists in the details of construction hereinafter pointed out and claimed.

In the annexed drawings, Figure 1 represents an elevation of the entire device. Fig. 2 represents a detailed view of the counterweight. Fig. 3 represents a vertical diametric section through one of the main solenoids. Fig. t represents a partial transverse diametric View and a horizontal diametric view of the core of the solenoid. Fig. 5 represents a top view of the negative-carbon holder. Fig. 6 represents several views of the cut-out. Fig. 7 represents an enlarged transverse view of the same. Fig. 8 represents a diagrammatic view of the wiring.

In the drawings, the letter A represents the light-chamber, which is secured in the usual way to the cap 13, provided with the top central hollow boss b. Passing down through and secured firmly within this boss I) is the positive-carbon holder 0, containing the positive carbon D. \Vithin the light-chamber A this positive-carbon holder G is made near its lower end 0 with opposite slots 0. Secured to the carbon-holder G at these slots 0' is a band E. In the ears e of this band E are pivoted the grip-cams F, whose operative edges pass through the slots 0' and rest against the positive carbon D. The outer ends'of these cams F are pivoted to hangers f, whose upper endsf are pivoted in a yoke G. This yoke G is secured to a sleeve g, which loosely surrounds the positive-carbon holder 0. This yoke G is secured by nuts above and below it, at it ends, to rods h. The counterweight G is pivoted by its arms 9 to each sideof the yoke G, such counterweightbeing also pivoted by the lugs g to the brackets 9 depending from the cap B. This counterweight and the brackets are shown in dotted lines in Fig. 1, so as not to confuse the drawings.

The rods h pass through the cap B, through tubes h, and are secured to the cores H of the main solenoids I. These cores II are made of a number of vertical rods 7L2, held together by caps h as clearly shown in Fig. 4. Secured to the supports of the main solenoids is a plate L, on top of which is placed a small solenoid Z. To the under side of the plate L is secured a bracket Z, in which is pivoted the lever M, which forms one part of the cut-out. At the end of this lever M is made a head m, consisting of the several layers m m m m consisting, in order, of red fiber, metal, red fiber, and metal, secured together by the bolts m Secured to the under side of the metal plate m is the carbon contact m Supporting-rods n depend from the plate L and carry the other portion N of the cut-out. This consists of the fiber plate n and metal plate n held together by bolts m and this part N carries the other carbon contact a Insulated to the cap B is the binding-post O to the negative-carbon holder. This consists of rods 0 and 0', held together by the tube 0 and the negative-carbon clamp P. This clampP has two jaws 19 and p. The jaw 19' is held by the sleeve 19 upon a horizontal rod 19 which is held in the lower end of the rod 0. Rising from the other end 19 of this rod 19 is the bar 19 in which is a setscrew 19 and asteady-pin p". The inner ends of the set-screw p and the steady-pin 19 engage the rear face of the jaw 19. Between the two jaws p and p the negative carbon Q is held, and it is clamped between the two jaws by operating the set-screw 19 the steadypin 19 preventing the jaw p from turning.

On the top of the cap B is placed the positive binding-screw b, and in the cap B is made the usual safety-valve R.

The solenoids I are made of coarse and fine wire, as clearly indicated in Fig. 3, the. Wires being Wound in reverse directions.

The line-wire is connected with one solenoid I and to the lever M of the cut-out. The positive wire passes from the first solenoid I to the second solenoid I, thence to the small solenoid Z, and thence to the positive bindingscrew 1). From the part N of the out-out the negative wire passes to the binding-screw O, and from this binding-screw the negative Wire passes off to the line.

When the current is turned on, the three solenoids I, I, and Z are vitalized. The two solenoids I operate in the usual way by the difference in the electromotive force produced by the differentiation between the reverse currents passing through the coarse and fine windings. The cores II are acted upon by the solenoids and through the yoke Gr and cams F act upon the positive carbon D. While the lamp is in use, the solenoid Z is aetive and keeps open the cut-out M N. Should the lamp from any cause become inactive, the

assess solenoid Z becomes devitalized, the two parts M N contact, and the current passes around the lamp.

Having described my invention, what I claim is 1. The combination of the yoke, G; the cap, B, and the counter-weight, G; the counterweight being pivoted both to the cap and the yoke, as set forth;

2. The combination of the jaws, p, p; the latter having the sleeve 19 the rod,p the bar, 19 the set screw, 19, and the steady pin, 19 as set forth.

3. The lever, M, having the head, 0%, consisting of the several layers, m m m and m consisting in order of red fiber, metal, red fiber and metal, and the bolts, m, as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

MALONE WHELESS.

Witnesses:

ROBT. V. HUGHES, A. E. BELL.