US1866750A - Transformer for floodlights - Google Patents

Description

July 12, 1932. M. l. BROWNELL 1,866,750

TRANSFORMER FLooDLIGHTs Filed July 6. 1929 www Yy/:ile j; ,Brau/nell Patented July 12, 1932 UNllllll STATES MYRTLE I. BROWN ELL, OF JACKSON, MICHIGAN TRANSFORMER FOR FLOODLIGI-ITS Application Ied July 6,

This invention relates to ioodlights and more particularly to a. new type of fioodlight containing a transformer.,

Known iioodlights are subject to many i: faults and have proved to be unsatisfactory a in use, short in life, and relatively high in cost. The device must be lof considerable size, the lamps used have frail concentrated filaments short-lived and unable to withstand 1G vibration, and much objectionable heat is generated rendering the device useless for many purposes.

The present invention overcomes these difficulties and presents advantages peculiar to Its nature and construction. lt makes possible a much smaller floodlight housing and/or reflector which is advantageous in window lighting and all `floodlighting and this is accomplished by using a transformer ind a small bulb. This bulb is not of the typeused hitherto in floodlights but may be an ordinary automobile bulb of cheap but sturdy construction and of small size, able to withstand severe vibration and generating tio great amount of heat.

Other and further objects and advantages will be clear from the following description or will be pointed out as the description proceeds.

'A preferred embodiment of the invention is illustrated in the accompanying drawing wherein:

Figure 1 is a side view partly in section and partly in elevation of a construction em- 1 odying the invention;

Figure 2 is a section on the line 2 2 of Figure 1 looking in the direction of the arrows;

Figure 3 represents diagrammatically the electrical features involved; and

Figure 4 is a fragmentary sectional 'View showing a modification of the lamp socket supporting bracket.

Similar numerals refer to similar parts throughout the several views.

The housing or casing of the device is represented by the numeral 1 and the same7 as shown, may be cylindrical for a portion of its length, then flaring out into a generally para bolic portion 2. An aperture 3 is located cen- 'irally of the rear closed surface. This may 1929. Serial No. 376,397.

be threaded for the reception of a threaded cap 4l as will be hereinafter more fully explained.

A reflector 5 is Within the parabolic portion 2 of the housing 1 to although thc reflector may consist merely of an internal polished surface of portion 2. A rim 6 of suitable construction maintains the assembly in place and a suitable cl sure (not shown) can be utilized such as a lens, glass, L or other suitable transparent or translucent member, wholly or partly colored or uncolored, or otherwise suitably designed or ornamented to give pleasing effects.

Supported in or b y a suitable framework or ,05 l i brackets 7 is a transformer 8 adapted to convert the usual 110120volt current supplied from a suitable source (not shown) through wires 9 in cable 10 to the transformer from which it issues in much lower voltage say 7D from 6 to 8 volts or other suitable low voltages, in known manner. llires 8 may be secured at binding post assemblies 11 in the usual manner.

Either secured to or about the transformer 8 or as a part or attachment to the framework or brackets 7 is a right angled bracket or suitable arrangement 12 having a forward cylindrical sleeve 13 centered in front of the transformer as shown. Contact member 14: I80 is arranged as shown. If a double contact typeof bulb is used, provision can of course be made therefor without departing from the present invention.

A socket 15 lies within sleeve 13, although 85 13 may be extended and take the place of 15 which can then be omitted as shown in F ig. a in which brackets 7 and 19 are secured to thetransformer and the socket 18 is supported by the reflector, a bayonet joint 21 similar to 20 being` provided for retaining the bulb lts other end lying within an aperture 16 at the apex of reflector 5 and having a bayonet slot 17. A bulb 18ct 6 to 8 volt 95 size `or of other low voltages is inserted into socket 15 and the pin 19 and slotl cooperate as usual to lockthe bulb and socket together. rlhe bulb may be any cheap, sturdy, and available kind,l such as those used in 100 and shaped similarly there- [5 8 i l automobiles, Which are long-lived and able to withstand vibration.

The Whole may be quickly and easily assembled and disassembled. Cable with Wires 9, on Which is cap 4, is inserted in aper- 10 13, reflector 5 is inserted in portion 2 With the adjacent end of the socket 15 passing through the aperture 16 at the apex of the reflector. Bulb 18 is inserted and locked into socket 15 against the spring pressure of the contact 14. The transparent or translucent closure (not shown) is put in place, if used, and rim 6 applied.

Many variations are Within the scope of the invention. For example, the rear of the y20 :housing 1 could be made separately for convenience and the shape, proportions, and disposition of the parts may be varied to meet conditions of usage encountered. The above disclosure is illustrative rather than limitative, any limitations being imposed by the subjoined claims.

The floodlight and/or reflector may be built and used for interior or exterior lighting or floodlighting.

Having thus described my invention and illustrated its use what I desire to secure by Letters Patent of the United States is:

1. In combination with a floodlight having a transformer, said floodlight comprising a housing open and flared at one end, an apertured reflector seated snugly in said flared portion of the housing and secured thereto, transformer supporting lbrackets remote from the open end, one of said brackets 'having an extended portion and supporting a bulb socket and said bulb socket passing through the apertured portion of the reflector, and said apertured portion serving as an additional support for the transformer. -1 2. In combination with a floodlight havthe reflector and received in the cylindrical apertured portion of a bracket secured to the transformer, said apertured portion of the reflector supporting the bulb socket and thereby serving as an additional support for the transformer.

4. In combination with a floodlight having a transformer, said floodlight comprising a cylindrical housing open and flared at one end, an apertured reflector seated snugly in said flared portion of the housing and secured thereto, transformer supporting brackets arranged at the end of the housing remote from the open end thereof and retaining the transformer in spaced relation to the housing, an apertured cylindrical member having an integral laterally extending bracket portion secured to the transformer, and a bulb socket secured in the apertured portion of the cylindrical member and passing through the apertured portion of the reflector, said latter apertured portion serving as an additional support for the transformer.

In testimony whereof I hereunto set my hand this 11th day of June, 1929.

MYRTLE I. BROWNELL.

ing a transformer, said floodlight comprising a Cylindrical housing open and flared at one end. an apertured reector seated snugly in said flared portion of the housing and se- ,ured thereto, transformer supporting brackets remote from the open end of the housing, one of said brackets having an integrally formed sleeve shaped bulb socket formed thereon, said bulb socket passing through the tpertured portion of the reflector, and said apertured portion serving as an additional support for the transformer.

3. In combination with a floodlight having a transformer, said floodlight comprising 'ihousing open and Hared at one end, an apertured reflector seated snugly in said flared portion of the housing and secured thereto, transformer supporting brackets remote from the open end of the housing, a bulb socket )assing through the apertured portion of

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