US1951406A

US1951406A - Lighting fixture

Info

Publication number: US1951406A
Application number: US640211A
Authority: US
Inventors: Edwin F Guth
Original assignee: Individual
Current assignee: Individual
Priority date: 1932-10-29
Filing date: 1932-10-29
Publication date: 1934-03-20
Anticipated expiration: 1951-03-20

Description

March 20, 1934.

Filed Oct. 29, 1932 2 Sheets-Sheet 1 FIG. I.

5 L 4 if 19 7 r w 10 L9 INYENTOR BY J ATTORNEY March 20, 1934. E. F. GUTH LIGHTING FIXTURE Filed oct. 29, 1952 2 Sheets-Sheet 2 FIG: 2.

Z6 Z4 2; I 23 K7 IN VENTOR Patented Mar. 20, 1934 LIGHTING FIXTURE Edwin F. Guth, Webster Groves, Mo.

Application October 29, 1932, Serial No. 640,211

1 Claim.

My invention relates to that class of lighting fixtures which are shown in United States Letters Patent No. 1,453,794, issued to J. W. Hancock. In the lighting fixture disclosed in this patent, provision is made for a substantial part of the light emitted by the bulb to escape upwardly and outwardly. The invention which is the subject of this application has for its principal object the improvement of the means of securing the outer reflector, so that easy and convenient access is provided, not only to the reflector for cleaning, but to the interior of the enclosing globe for the purpose of cleaning it, or for the purpose of relamping the fixture.

My means of accomplishing the foregoing objects may be more readily understood by having reference to the accompanying drawings, which are hereunto annexed and made a part hereof, in which- Fig. 1 is a side elevation, part of the fixture being broken away, showing the interior construction and the method of holding the reflector; and

Fig. 2 is a similar View showing a modified form of construction.

Similar reference numerals refer to similar parts throughout the entire description.

As shown in the drawings, the fixture is suspended by a tube 1, the upper end of which is provided with a swivel 2, for the purpose of en- 80 surlng the fixture maintaining a perpendicular position. A standard canopy 3 is shown enclosing the outlet box (not shown). A socket 4 is secured to the lower end of the tube 1. Though it will be apparent to persons skilled in the art that any other type of socket may be employed for this purpose. A socket cover 5 encloses the socket 4 and a lamp 7 is mounted in the socket in the usual manner. This lamp is enclosed by a white, translucent glass enclosing globe 8, which may be of any suitable or desired configuration. A reflector 9 of any desired shape extends around the enclosing globe 8. This reflector is preferably made of metal, having its inner surface 10 enameled so as to increase its reflective qualities. The upper part of the reflector 9 is provided with a vertical cylindrical stem or neck 11 which is provided with an inwardly extending flange 12, which rests upon the lip of the enclosing globe 8. The vertical cylindrical neck 11 is connected to the body of the reflector 9 by means of ribs 14 which are spaced from each other leaving openings which provide for the upward illumination. The neck 15 of the glassenclosing globe 8 is carried by my improved fourpoint inside suspension. This suspension, as set forth in my copending application, Serial No. 614,059 consists of an upwardly extending collar which forms the socket cover 5 which as shown is detachably mounted on the socket 4, simply resting on its upper end. Although I have shown and described this particular type of construction for the manner in which the collar is supported, it will be obvious to persons skilled in the art that my invention is not restricted to any particular type of supporting means, and I do not desire to be limited to the specific disclosure described except as such limitations may appear in the hereinafter contained claim. The suspension is provided with four radially extended arms 18 which engage the under side of the neck 15 of the glass enclosing globe 8. I provide a metal retaining ring 19 which has a downwardly extending peripheral flange 20 which is fitted to and coincides with the external wall of the vertical cylindrical neck 11 of the upper part of the reflector 9. When this retaining ring is dropped into position over the neck the whole fixture and its various parts are properly held in the correct position. When occasion arises and it is desired to gain access to the interior of the globe, either for the purpose of cleaning it or for re-lamping the fixture, all that is necessary to do is to lift up the metal retaining ring 19 until the peripheral flange 20 is out of register with the top of the vertical cylindrical neck 11 of the reflector, when not only the reflector 9 will be released, but it is also possible to tip the globe up and. lift it off of the four-point suspension. When the globe has been cleaned, or the new lamp inserted, as the case may be, the neck of the globe is then again placed in a position to rest upon the top of the suspension arms 18, the reflector is dropped into place and the retaining ring 19 is placed over them as clearly seen in Fig. 1.

It will be apparent from the hereinbefore contained description that I have provided a secure means for holding the parts in assembled position but without employing any screws or other fastening devices but which without such extraneous means will securely maintain the parts in their required positions at all times and yet will permit quick and convenient access to the interior of the fixture for cleaning purposes or re-lamping.

In some cases it may be found desirable to provide means for holding the metal retaining ring 19 so that the peripheral flange 20 cannot be accidentally dislodged. When this type of fixture is desired I provide as shown in Fig. 2 the metal retaining ring 19' with an upwardly extending 1T0 ,is mounted upon these threads.

portion 22 which has an inwardly extending flange 23 which is fitted to the exterior wall of the standard loop 24 which is screwed upon a threaded nipple 25 to support the fixture in the usual or customary manner. Threads 26 are out upon the outer surface of the loop 24 anda nut 27 As this nut is larger in diameter than the central aperture formed in the inwardly extending flange 23 it follows that when the nut 27 is screwed down it serves to hold the metal retaining ring 19' and the vertical peripheral flange 20 against longitudinal movement so that the fixture will-be struck or swung violently without any danger of the reflector or enclosing globe being dislodged.

Although I have described with some degree of particularity a specific form of structure, it should be understood that this description is furnished solely for the purpose of disclosing a concrete embodiment of my invention and I do not wish to be understood as limiting myself thereto except as such limitations may be found in the hereinafter contained claim.

Having described my invention what I regard as new and desire to secure by Letters Patent is:

In a lighting fixture, having a socket, a lamp in said socket, supporting means therefor, a glass enclosing globe having a neck which terminates in a lip, detachable means to support said globe, said means comprising a vertical cylindrical portion which encloses the socket and rests loosely thereon, a reflector which surrounds said globe, a vertical cylindrical neck on said reflector connected to said reflector by a series of spaced ribs, an inwardly extending flange on said reflector neck, adapted to rest on the lip of said globe and a retainingv ring having a central aperture which fits said globe support and a vertical, peripheral flange adapted to telescope the vertical cylindrical neck of said reflector.

EDWIN F. GU'I'H.