US1842167A - Candle lamp - Google Patents

Description

J. D. HALL CANDLE LAMP Filed sept. 9. 1929 Jan. 19, 1932.

INVENTOR BY J. D. HH

ATTORNEY Patented Jan. 19, 1932 UNITED STATES PATENT OFFICE JAHEB DOYLE HALL, l' BLOOIFIELD, NIW JERSEY, ASSIGNOR TO WESTINGHOUBE LAHI COIPAN'Y, A CORPORATION 0F PENNSYLVANIA CANDLE LARP Application lied September 9, 1929. Serial No. 391,189.

This invention relates to incandescent A electric lamps and more particularlyto .in-

candescent electric lamps of the decorative type, and has for its object the provision of a novel type of incandescent electric lamp which when lighted simulates in appearance a lighted cand e.

Another object of this invention is to provide a candle shaped lamp havin a ti or wick portion operating at a relatively logh. luminosity and a lower or candle p ortion operating at a relatively low luminosity.

Another object of this invention is to provide an incandescent electric lamp shaped in the configuration of a candle and adapted to be used in the usual lamp socket, having an upper bright or Wick portion and a. lower relatively less bright candle portion.

Other objects and advantages will become apparent as the invention is more fully disclosed. i

Heretofore it has been customary to form candle lamps in the configuration of a tip or Wick of a candle and colored to simulate a flame when lighted which lamps are inserted int-o a socket concealed in a candle shaped base or Candelabra. The assembly does not appear realistic and often the size of the lamp tip or wick portion is out of proportion with respect to the size of the base or candle portion.

By means of the present invention I am enabled to overcome these disadvantages and to produce a novel and realistic appearing candle lamp, as will be more fully disclosed. Before further disclosing the nature of the present invention reference should be had to the accompanying drawings wherein;

Figs. 1, 2 and 3 set forth one specific embodiment of the present invention, and

Figs. 4, 5 and 6 set forth a second specific embodiment of the same. v

Fig. 1 is a side elevational view of a candle lamp constructed in accordance with one specific embodiment of the present invention.

Fig. 2 is a side elevational view partly in cross-section of the same showing the type of lament mount employed.

Fig. 3 is a cross-sectional view of the same lamp taken through plane III-III Fig. 2.

Fig. 4 is a side elevational view of a second specific embodiment of the present invention,

Fig. 5 is a side elevational view partly in cross-section of the same showing the type of filament mount employed, and

Fig. 6 is a cross-sectional view of the same taken through plane VI-VL Fig. 5.

lamp constructed in accordance with the present invention in its simplest construction may be a unitary device such as shown in Fig. 4 comprising esesntially in a tubular shapedenclosing glass envelope 1 having one end shaped in the configuration of' a wick or flame 2 which may be fluted or not as desired, and the other end fusibly united to the flare tube of a filament mount attached to thestem 3, thefilament 4 of said mount extend ing alon the longitudinal axis of the enclos-4ing enve ope 1 terminating at one end into a segment shaped in the convolution of a coil located within the tip or wick section of theenclosin glass envelope 1 and retained therein y filamentlead support wire 5 and extending as a. straight, fiuted or corrugated filament segment through -the center of the tubular section of the lamp.

The lower end of thefilament 4 is attached in any convenient manner to leadwire 6. The filament is retained in position along the longitudinal axis of the enclosingglass envelope 1 by means offilament retaining members 7, 8, 9 and 10 which are integrally attached to, but electrically insulated from, supportWire 5.

Thefilament support wires 5 and 6 are electrically connected through the press of the stem 3 'of the mount to thescrew base 11 in the usual manner. The exterior surface of the lamp is coated by well known prior art methods in any desired color or combination of colors. The lamp may be of the evacuated or gas filled type as desired and may be evacuated in a manner heretofore employed in incandescent lamps of other types, such as indicated at 12 through the use of stems of the tipless type. If desired, however, it is possible to evacuate the lamp through a tubulature attached to the apex of the tip 2.

As a modification of the simplest construction of my invention the candle lamp may be a composlte device, one unit of which comprises an outer tubularshaped shell 20 which ma be of glass, one end of which is open the other end of which is sealed in the usual manner to a lamp base 11k of the usual type and containing internally adJacent sald base and electrically connected thereto alamp socket 21 adapted to receive alamp base 22 of smaller diameter than the external lamp base ofshell 20.

The second unit of the lamp comprises an elongated tubular shaped enclosing glass envelope 23 shaped at one end to the configuration of a candle tip or wick or fiame, 24 and fluted if desired, and fusibly united at the other end to the flare of thestem 3 in the usual manner, the stem carrying a two sectionedfilament 4 mounted in a manner analogous to that heretofore described in the first specific embodiment, and electrically connected through the press of thestem 3 to the base ofsmaller diameter 22 integral with the enclosing glass envelope 23. This lamp may also be evacuated or gas filled as desired, and thestem 3 may also be of the tipless type.

The advantages gained through the use o the structure shown in Figs. l, 2 and 3 are that the tip 24e of. the lamp may be flame tinted or any other desired color and the lower portion of the enclosing glass envelope 23 clear or colored any desired color and theouter shell 20 may be of any desired color. lf a color change is desired a change yin the louter shell 2O only need be made. The consumer therefore may have a set or series of outer shells of dilierent desired colors which are interchangeable at will and utilize only one set of incandescent lamps, whereas in the first specific embodiment a consumer mustinterchange entire lamps and sometimes the fixture itself in order to change the color scheme oi' the candle lamp.

lin either specific embodiment, however, l obtain substantially the same lighting effect namely an upper or wick or fiame portion operating as a result ot' the section of coiled filament interiorly located therein, at a relatively high luminosity and a lower or candle portion of a lamp operating at a relatively low or diffused luminosity, as a result of the straight segment of filament centrally traversing the longitudinal axis of the tubular section of the lamp.

Having broadly and specifically outlined the nature of my invention andlgiven two specific embodiments of the practice of the same it is apparent that there may be many variations and departures thereof without substantially departing from the invention as set forth in the following claims.

What is claimed is:

1. In an incandescent electric lamp comprising a filament and an enclosing tubular shaped glass envelope, a filament mount comprisin a stem, lead wires sealed therethroug and filament support wires, one of which extends interiorly substantially the entire length of said tubular shaped envelope and a filament disposed between said support wires, a filament comprising an upper coiled section adapted to give a light of high local intensity and a lower straight section adapted to give a light of low local intensity.

2. An incandescent electric lamp comprising a tubular shaped glass envelope, a iilament comprising a coiled section to ive light of relatively high intensity dispose adjacent to one end of said envelope and a straight portion extending to the opposite end of said envelope to give light of relatively low intensity.

3. An incandescent electric lamp comprising a candle shaped glass envelope having a hollow fiame shaped portion integral therewith, a filament comprising a section of relatively high light giving intensity in said fiame shaped portion and a section of relatively low light giving intensity in said candle shaped portion.

in testimony whereof, l have hereunto subscribed my name this 6th day of September,

JAMES DOYLE HALL.

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