US661126A

US661126A - Electric-arc lamp.

Info

Publication number: US661126A
Application number: US665900A
Authority: US
Inventors: John A Heany
Original assignee: TETER HEANY DEVELOPING Co
Current assignee: TETER-HEANY DEVELOPING Co; TETER HEANY DEVELOPING Co
Priority date: 1900-02-27
Filing date: 1900-02-27
Publication date: 1900-11-06
Anticipated expiration: 1917-11-06

Description

Patented Nov. s, |900.

J. A. HEANY. ELECTRIC ARC LAMP.

(Applicntion kd Fab, 27, 1900.)

z sheets-snm l.

(llo Model.)

r r l l r r f r f r r u l n 4 'f a l l f f a a f l r r l a r l a f f f r g i e l I l I I I n l I a l l l I l l l l l l l l d l l I l l n l mi wams Pernis co, PrmmAJ'mcx.4 wnsumnfou. u. c4

Patented NW6, |906.

J. A. HEANY. ELECTRIC ARC LAMP.

(Application led Feb. 27, 1900.)

2 Sheets-Sheet 2.

(Nn Model.)

UNITED STATES VPATENT OEEICE.

TETER-HEANY DEVELOPING COMPANY, OE SAME PLACE AND CHARLES- TON, WEST VIRGINIA.

ELECTRIC-ARC LAMP.

SPECIFICATION forming part of Letters Patent No. 661,126, dated November 6, 1900.

Application filed February 27, 1900. Serial No. 6,659. tNo model.)

To @ZZ whom it may concern:

Beit known that I, JOHN A. HEANY, a citizen of the United States, residing at the city of Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvementsin Electric- Arc Lamps, of which the following` is a specication.

y presentinvention has relation to an elecxo tric-arc lamp and to that particular type of lamp which is illustrated, described, and claimed in a companion application for a patent Iiled of even date herewith under Serial No. 6,658, series of 1900. In said companion I5 application there are shown, described, and claimed certain generic features of invention, one of which may be briefly described as follows: the location of the carbons, the solenoid-core, and auxiliary working parts in an zo air-tight receptacle around which is arranged the solenoid-coil. In the present invention this same generic feature is involved; but a different arrangement of the parts, together with other specific details of improvement, z5 forms the subject-matter of this application.

My present invention consists, first, in an improved means of conducting the electric current to the 'upper carbon; second, in an improved means for feeding said carbon;

3o third, in an improved construction of the inner air-tight receptacle containing the carbons and the working parts, and, fourth, in an improved holder for the lower carbon.

My invention, stated in general terms, consists of an electric-arc lamp constructed and arranged in substantially the manner hereinafter described and claimed.

The nature and scope of my invention will be more fully understood from the following 4o description, taken in connection with the accompanying drawings, forming part hereof, in Whichv Figure 1 is a vertical central sectional view of an electric-arc lamp embodying main features of my invention. Eig. 2 is a cross-sectional view taken on the line x a; of Eig. l. Eig. 3 is a vertical central sectional view of the lower portion of the upper carbon and auxiliaries, said View being taken at right 5o angles to the view illustrated in Eig. l. Fig.

4 is a detail perspective view of the feedingclutch for the upper carbon. Fig. 5 is a similar view of the lower-carbon support; and Fig. 6 is a cross-sectional View similar to Eig. 2, bntillustrating a modified form of air-tight inner receptacle.

Referring to the drawings, Ct represents the upper and I) the lower carbon of the lamp. The carbon t is held at its upper end in a cap d', to which is secured a brush (t2 of highlyconductive material. The cap a', brush ai, and carbon ct are adapted to slide up and down in a stationary metallic tube a3, which is connected by wire o4, binding-screw 0.5, switch ct, and binding-post t7 with a pole l of the source of electric energy. 'lhe brush c2 serves' toalways make electrical contact between the tube t3 and carbon ct, while permitting said carbon to be slid up and down in the tube as. Surrounding the tube c3 and near its base is a solenoid-core CZ. This core d carries the clutch or feeding mechanism for the upper carbon and is adapted to slide up and down upon the tube d in a box or receptacle in the upper end vof which the tube c3 is secured. This box f has a flanged basef, which issnpported upon and iixed to a screwcollar-f2. To the collar fils clamped a globe f3 by means of a screw-ringf'l, said globe inclosing the lower carbon I) and its holder and forming, with the box or receptacle f, an airtight compartment inclosing both carbons, the solenoid-core d, and the necessary auxiliaries for the proper support and feeding of the carbons.

The receptacle f, as illustrated in Eig. l, has its tubular walls vertically perforated with uesfr, communicating at the base with a series oi' radially-disposed iiuesj, and at the upper end with radially-disposed outlets f7, opening into the eXteriorof the boxj". In the modiiied form illustrated in Fig. (i the arrangement is the same, except that the outer periphery of the walls of the box is verticallychanneled, as atflo. Surrounding the boxf is an outer casing g, having at its base and top the openings g' and g2, registering, respectively, with the inlets]LIG to iiues]5 and the ontletsffrom said fines. In the space between the casing g and boxf and around IOO s Geiles the boxis coiled the solenoid-coil 7L, connected by wire 7L and binding-post 7b2 to the other pole 3 of the source of electric energy. This coil 7L is formed of a wire of sufficient resistance as not to require an additional resistance to be placed in the circuit. The coil 7i. is also connected by wire h3 to a rod m, formiupr a port-ion of the support for the lover carbon I). rFhe support for said carbon l) comprises the rod m, tothe lower end of which is secured a plate in', of spring metal, bent into two angular wings. 'lhcse wings are each centrally apertured, as at 'ni/2, the diameter of the aperture beine larger than the diameter of the carbon l). When the wings are in their normal position, as indicated in Figs. land the perforatious 'm2 do not register and the carbon will be bound securely in the perforations to the wings. When, however, the wings are caused to approach a parallel position, the perforations register to a sufficient extent. to permit the carbon b to slide through the wings.

The feed mechanism for the upper carbon d comprises the solenoid-core d, from whose base projects a stem df, carryingr a springplate cl2, ha ving a central aperture (Z3, slightly larger iu diameter than the carbon d. 'lhe normal position of this plate (Z2 is oblique to the lower face of the core CZ, as illustrated in dotted lines in Fig. l. rlhe free end ofthe plate (Z2 is slotted, atdit, and engages a stop pin or screw d5, fixed to the collar f2, and forces the plate d2 to assu me a position parallel to the lower face of the core d. When, now, the core d rises, the plate will be tilted immediately and will grip the carbon d and elevate the same. \Vhen the core d falls, the free end of the plate d2 will impinge upon stop-pin d, and the plate cl2 will be forced into a position substantially parallel with the lower face of core d and the carbon Ct will be released. The uljiward movement of the core d in the boxf under the influence of the coil t is checked or reeulztted, preferably, in the following manner: From the base of the core d project the two screw-pins p, the stems of which traverse loosely the collar f2, as indicated in Fig'. Between the heads ot' the pinsp and the collar f2 and around the stem of said pins are coiled the springsp'. Vhen, now, the core d is elevated, the springs p will brake or check its movement.

The downward movement of the solenoidcore may be limited or adjusted by the stop pin or screw d5, which is adaptedto be advanced or retracted in the eollarf2 for this purpose in addition to its other purpose of causing` the spring-plate d2 to assume a position parallel to the base of the coil.

Having thus described the nature and object of my invention, wliatI claim as new', and desire to secure by Letters Patent, is-

l. In an electric-arc lamp, an upper carbon, a cap to which the carbon is secured, a contact-brush carried by said cap, a stationary metallic tube connected with one pole of the source of electric energy, said carbon and its cap adapted to slide freely in said tube and said brush adapted to malte contact with said tube, and a solenoid-coro surrounding` said tube and adapted to slide up and down thereon, said core adapted to o| erate the upper carbon in the tube, substantially as and for the purposes described. V

2. ln an electric-arc lamp, a feeding` meehanism for one ot' the carbons, con'iprisine a solenoid-core, a stem projecting;` from the base of said core, a spring-plate fixed at one end to said stem and having a central aperture surroundiine` the carbon and adapted to normally project obliquely to the base of the core, and a stop-pin adapted when the core is depressed to depress the free end of said spring-plate so that said plateshall assumea position parallel to the base of the core, substantially as and for the purposes described.

3. ln an electric-arc lamp, a boxV or receptacle adapted to inclose the upper carbon and the solenoid-core, said box having` its peripheral walls channeled or grooved to form airflues, substantially as and for the purposes described.

it. ln au electric-arc lamp, an upper carbon, a fixed tube, wherein the upper carbon is adapted to move, a solenoitl-core surroundiner said tube and adapted to slide up and down thereon, a stem projecting` from the base of said core, a spring-plate fixed at one end to said stem and havingr a central aperture surrounding the carbon, said plate normally projecting from the stem obliquely to the base of the cor a set-screw adapted to form a means for adjusting the downward movement ot' the core, said screw adapted when the core is dein'essed to depress the free end of the spring-plate to cause the plate to assume a position parallel to the base of: the core, substantially as and for the purposes described.

ln an electric-arc lamp, a box or receptacle, a solenoid-core adapted to be elevated and depressed in said receptacle, a collar forming a base for the box or receptacle and a support for the core in the depressed position, a headed pin or pins dependintjr from the base of the core and trayersing` said collar and a spring` coiled around said pin aud interposed between its head and the collar, Substantially as and for the purposes described.

ln testimony whereof l have hereunto set my signature in the presence of two subscribing witnesses.

JGHN A. HEANY.

WVitnesses:

J. WALTER DoUGLAss, THOMAS M. SMITH.