US430156A - William l - Google Patents

Description

(No Model.)

W. L. VOELKER.

M-ANUPAGTURE OF INGA NDE SCENT LAMPS.

Mneases v flux 24W.

Patented June 17, 1890.

' [EVE BT01 UNITED STATES ATENT FFICE.

WILLIAM L. VOELKER, OF MORTON, PENNSYLVANIA, ASSIGNOR TO JOHN H. IRWIN, TRUSTEE, OF SAME PLACE.

MANUFACTURE OF INCANDESCENT LAMPS.

SPECIFICATION forming part of Letters Patent No. 430,156, dated June 17, 1890. Application filed March 9,1882. Serial No. 54,761. (No model.)

To all whom it may concern.-

Be it known that 1, WILLIAM L. VoELKER, of Morton, county of Delaware, and State of Pennsylvania, have invented certain new and usefullmprovements inIncandescentElectric Lamps, (Case 10,) of which the following is a a full, clear, and exact description, reference beinghadto the accompanying drawings, and to the letters of reference marked thereon.

My invention relates especially to incandescent electric lamps known as vacuum lamps; and it consists, essentially, in so constructing the glass globe or bulb and affixing the neck thereto that the parts may be easily I 5 and readily united when inclosing the incandescing filament and its supports, and has for its object the production of a device wherein the parts are easily assembled, and in which the proper position of the support and incan- 2o descing filament of carbon will bemaintained, and if the same become displaced, by simply heating the globe at its base and bending in the requisite direction, the interior parts of the lamp maybe easily moved to place; and my invention involves certain novel and useful combinations or arrangements of parts and peculiarities of construction, all of which will be hereinafter first fully described, and then pointed out in the claim.

In the drawings, Figure 1 is an elevation of the interior parts of the lamp. Fig. 2 is a like view of the interior'parts of the lamp as fixed in a tube preparatory to sealing to the globe or bulb. Fig. 3 illustrates the method of connecting the parts, and Fig. 4: shows a completed lamp.

Like letters of reference, Wherever they occur, indicate corresponding parts in all the figures.

A is the incandescing filament of carbon, soldered or otherwise connected to metallic conductors A, passing to the platinum conductors A sealed in the base of the lamp at I.

Bis a support, of glass or other suitable material, through which conductors A extend. The upper extremity of support B is made solid, as indicated at B.

O is a rod of suitable material attached to conductors A for the purpose of manipulating the parts without danger of breaking them.

IVhen the interior parts of the lamp are thus assembled, as shown in Fig. 1, they are passed into a glass tubeD, having an enlargement D at its upper extremity, as shown in Fig. 2, and the carbon is passed up into globe G, as indicated in Fig. 3, the globe being sealed to enlargement D at H. Tube D is then filed oif at I, and the glass softened and compressed around conductors A firmly securing the interior parts of the lamp in place. The globe is next exhausted and sealed at L, as fully set forth and described in Letters Patent No. 255,219, granted to me for improvements in incandescent electric lamps, dated March 21, 1882. f

Having now fully described my invention, What I claim as new therein, and desire to secure by Letters Patent, isv The method of manufacture of an incandescent electric lamp, which consists in sealing the electric conductors into a glass support, then seating the glass-support into a lower section of the globe, then sealing said lower section to the upper section of the globe, substantially as described. I

In testimony that I claim the foregoing I have hereunto set my hand in the presence of two witnesses.

WILLIAM L. VOELKER.

IVitnesses:

ARTHUR A. BENKERT, CHARLES R. SEARLE.

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