US 2086108 A
Description (OCR text may contain errors)
July 6, 1937. w. E. WUELKER v2,086,103
' REFLECTOR Fiied March 20, 1956 INVENTORT WILL/AM E. WUEL KER.
A TTORNE YS Patented July 6, 1937 UNITED STATES PATENT omegjs zlisewj' 7 REFLECTOR William E. Wuelker, San Francisco, Calif. Application March .20, 1936,. Serial No. 69,926
' 5 Claims.
My invention relates to reflectors, and more particularly to an adjustable reflector which can be utilized in combination with an electric lamp so that light may be directed into various paths without moving the. lamp. I g
The main objectof my invention is'to provide a reflector assembly which may be utilized to direct light in various directions" from a fixed lamp.
Another object of my invention is to provide an adjustable reflector r v Still another Objectofmy invention is to provide a reflector which may be utilized to direct light in difierent directions without the necessity of changing reflectors;
Other objects'of my invention will be apparent or will be specifically pointed out in'the description forming a part of this specification, but I donot limit myself to the embodiment of the invention herein described, as various forms may be adopted within the scope of the claims.
Other objects of my invention may be more fully understood by direct reference to the drawing, wherein:
Figure l is a sectional view of the reflector of a preferred embodiment of the reflector of my invention.
Figure 2 is a top plan View of the portion of a retaining member, cut away to show the adjusting slot. 7
In many cases, show windows and the like are provided with fixed conduit outlets, terminating in lamp sockets, and if spot-lighting of any particular portion of the window is necessary, either special spot lights are necessary or special directive reflectors must be placed on each lamp. If the scene in the window is changed, lighting requirements change, and in many instances it is necessary to completely replace the reflector arrangement.
My invention comprises an adjustable reflector which can be left permanently on the lamp'o-r socket, and yet be so changed in arrangement that the light can be reflected from the lamp in any direction desired, within the limits of the adjustability.
Furthermore, there are many modern lamps which burn onlyin one position. Certain of the gas-filled, high intensity lamps must be burned base dow'n; others, base up; and high intensity, mercury arcs, sodium arcs and similar lamps are always used in a fixed, predetermined position. In such cases either a multiplicity of reflectors must be utilized when fixed outlets are provided, or a device provided such as I will describe herein.
Referring directly to the drawing, a lamp sockolonged t a groo ed-t m l; ;-;b1. i thi case I have shown the grooved terminal 8 as being a prolongation of the outer retaining member 3. Screws 2 cooperate with a groove 9 in the terminal 8, and if these screws 2 loosely engage the groove 9, the reflector may be rotated as well as held in position.
The space Ni between the retaining members 3 and 4 is large enough so that the periphery the retaining members may passthrough it; and I prefer to elongate this aperture It so that when the reflector i3 is centrally positioned with respect to the retaining members that the aperture is completely covered by the retaining members. Beads II and i2 provide the only bearing of the retaining members on the reflector l3. 7
In assembling the reflector, the inner retaining member 4 is set up and the reflector portion 13 is placed over it, so that the cylindrical portion 6 of the inner retaining member passes through the aperture I l. The outer retaining member 3 is then slipped over the reflector portion 93 and the inner retaining member, so that cylindrical portions 5 and ii are engaged, and the retaining members are then fastened together. Thus, the reflector portion 13 is held between the two retaining members but may be moved within the limits of the slot M, as indicated by the broken lines E5 in Figure l. g V
The reflector assemblyrmay then be inserted in the lamp socket, as shown, and the lamp inserted in the reflector through the space enclosed by cylindrical portions 5 and 6. Thereafter, by a combination of turning movements of the entire assembly with relation to the lamp socket, and by the angular relationship of the shade of the reflector portion to the retaining in order that the cylindrical portions 5 and 6 of into a multiplicity of paths without the necessity of moving the lamp.
In case it is desired to completely lock the reflector in any desired position, screws 2 may be tightened to prevent rotational movement, and a reflector lock screw is provided engaging one of the retaining members and also bearing against the reflector portion I3.
Other means of locking the adjustable portion to the fixed portion will be apparent to those skilled in the art.
1. In combination with a light source, a reflector comprising a pair of spaced and opposed retaining members having a spherical curvature, a, reflecting member of greater extent than said retaining members having a portion thereof of spherical curvature concentric with the curvature of said retaining members, said portion fitting in the space between said retaining members and freely movable therein, allof said members having registrable apertures therein for entrance of said light source, and the aperturein said reflecting member being elongated whereby said reflecting member may be moved to direct light at varying angles from said light source.
2. In combination with a light source, a pair of retaining members having hollow cylindrical connected portions and spaced spherical concentric portions, and a reflecting member having a portion fitting the space between said retaining members and freely movable therein to various relative positions by virtue of having an elonmembers, light from the lamp may be directed relative position.
4. In combination with a light source, a pair of retaining members having hollow cylindrical connected portions and spaced spherical concentric portions, and a reflecting member having a portion fitting the space between said retaining members and freely movable therein to various relative positions by virtue of having an elongated slot therein to allow passage of one of said cylindrical portions therethrough, said slot being totally covered by said retaining members.
5. In combination with a light source, a pair of retaining members having hollow cylindrical 1 connected portions and spaced spherical concentric portions, a reflecting member having a portion fitting the space between said retaining members and freely movable therein to various relative positions by virtue of having an elongated slot therein to allow pasage of one of s'aid cylindrical portions therethrough, andbeads on the periphery of said retaining members for contacting said reflecting portion.
WILLIAM E. WUELKER.