|Publication number||US2465519 A|
|Publication date||Mar 29, 1949|
|Filing date||Jul 6, 1946|
|Priority date||Jul 6, 1946|
|Publication number||US 2465519 A, US 2465519A, US-A-2465519, US2465519 A, US2465519A|
|Inventors||Eastman Fred L|
|Original Assignee||Compco Corp|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (3), Referenced by (3), Classifications (5)|
|External Links: USPTO, USPTO Assignment, Espacenet|
March 29, 1949. EASTMAN 2,465,519
REFLECTOR APPARATUS 1 Filed July 6, 1946 Patented Mar. 29, 1949 BEFLEGTOR APPARATUS Fred L. Eastman, Chicago, Ill., assignor to Compco Corporation, Chicago, 111., a corporation of Illinois Application July 6, 1946, Serial No. 681,706
This invention relates to reflector apparatus.
An object of the invention is to provide means for supporting a reflector by means which will provide an effective balance for the same whereby it will tend to retain its normal position and may be adjusted quickly to other desired positions. A further object is to provide a reflector structure in which the reflector is supported by means of a universal joint located at the center of gravity of the reflector unit with the lamp and cord attached. Yet another object is to provide new and effective means for mounting a reflector upon a support structure and with means for adjusting the position of the reflector with respect thereto. Other specific objects and advantages will appear as the specification proceeds.
The invention is illustrated, in preferred embodiments, by the accompanying drawing, in which-- Figure 1 is a broken rear view in elevation of reflector structure embodying my invention; Fig. 2, a side view in elevation; Fig. 3, a perspective view of the bracket support structure employed; and, Fig. 4, a broken and partly sectional view showing a modified form of structure embodying my invention.
In the illustration given, I6 designates a reflector which may be of any suitable type or construction. The reflector I is provided with a rearwardly extending socket sleeve. Extending about the sleeve I I and at its forward end is shown a pair of clamping members I2 secured together at their top by the bolt I3 and at their bottoms having outwardly turned flanges I4.
A bracket member I5 has a horizontal flange I6 provided with a slot through which the lower legs of the members I2 extend and the platform I6 rests upon the horizontal flanges i i of the members I2. With this structure, the bracket I5 is supported rigidly and without angular movement under strain so as to provide a sturdy support for the reflector Ill. The bracket I5 extends downwardly and forwardly and is provided at its end with a leg I7 provided with a ball I8.
Any suitable means for securing the reflector in position may be employed. In the illustration given, I provide a spring member I9 equipped at its lower ends with clamping legs 26 adapted to engage any supporting surface. The upper end of the spring member I9 is provided with a coil 2|.
Between the ball I8 and the support I9, I provide the clamping members 22 which are secured together by the adjustable bolts 23. The members 22 are each provided with a socket portion 24 adapted to receive the ball I8 and with a clamping jaw 25 adapted to engage the coil 2I of the support member I9.
I prefer to employ a support bracket I5 of such length that the ball I8 is maintained at the center of gravity of the reflector unit with the lamp and cord attached thereto. Such center of gravity can be readily found when the parts are in position and the reflector It! is turned to the position indicated in Fig. 2 where the longitudinal axis of the reflector is in a substantially horizontal line. Should a heavier lamp be used or should the socket and lamp cord be changed with a corresponding change in Weight, the balance can be recovered by shifting the members l2 along the sleeve I I to the position at which the ball I8 lies at the center of gravity of the assembled unit.
In the operation of the structure, the clamp member I9 is pressed inwardly to separate the jaws 2i! and then released when they are in engagement with a supporting surface. With the reflector unit mounted so that its center of gravity is coincident with the ball I8, the reflector may be supported in balance and may be readily tilted to any other desired position during the use of the structure. Tightening of the bolt 23 may be employed as desired to render the frictional grip upon ball I8 sufficiently tight. Should the balance of the unit be changed through the substitution of another lamp or other parts, movement of the members I2 along the sleeve II can be readily made upon loosening bolt I3 and then tightening it after the adjusted position brings the ball i8 at the center of gravity of the unit structure.
The bracket I5 is held rigidly in position because of the pressure of sleeve II outwardly against the wide bands I2 and because the platform it is gripped and held by the outwardly turned flanges I4.
In the modification shown in Fig. 4, the reflector 26 is provided with an opening 21 and the ball member 28 is equipped with a flange 29 and the neck 32 extending through the opening 21. The neck 30 may be swaged to form a head BI for locking the ball 28 in position. Preferably the location of the opening 27 is such that the ball 28 may be maintained at the center of gravity of the assembled unit.
It will be understood that other means may be provided for providing a support at the center of gravity of the unit and also for providing adjustment of the universal joint to positions to which the center of gravity may be shifted.
While in the foregoing specification, I have set 3 forth certain details of structure for the purpose of illustrating preferred embodiments of the invention, it will be understood that such details may be modified widely by those skilled in the art without departing from the spirit of my invention.
1. In reflector apparatus, a reflector body equipped with a rearwardly-extending socket sleeve, a pair of arcuate members secured together at their upper end and provided at their lower ends with outwardly-extending wings, a metal bar having a slot therein receiving said wing portions and having a horizontal platform resting upon said wings, said bar having a down,- wardly-curved body following the curvature of the reflector body, a ball supported by said bar at about the balance point of said reflector body, and clamping attachment means providing a releasable universal seat receiving said ball.
2. In reflector apparatus, a reflector body equipped with a rearwardly extending socket sleeve, a ring slidably engaging said sleeve and equipped with lower ends extending outwardly to form supporting flanges, a metal bar having a slot therein receiving said ring and resting upon said flanges whereby said bar is supported against tilting upon said ring, said bar having a downwardly curved body generally following the curvature of the reflector body, a ball supported by said bar at the lower end thereof, and a clamping attachment providing a releasable universal seat receiving said ball. a
3. In reflector apparatus, a reflector body equipped with a rearwardly extending socket sleeve, a wide band ring receiving said sleeve and adapted to be clamped there-about in slideable relation, a metal bar carried by said band for slideable movement toward and away from said reflector body, said bar having a downwardly curved body following the general curvature of said reflector body, a ball supported by said bar at its lower end, and a clamping attachment means providing a releasable universal seat receiving said ball.
FRED L. EASTMAN.
REFERENCES CITED The following references are of record in the file of this patent;
UNITED STATES PATENTS Number Name Date lei-8,359 Nichols Mar. 17, 1891 1,562,994 Stewart Nov. 24, 1925 2,150,542 Cook Mar. 14, 1939
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US448359 *||Nov 15, 1890||Mar 17, 1891||Support for electric cables|
|US1562994 *||Sep 15, 1921||Nov 24, 1925||Andrew B Stewart||Adjustable connected electric lamp and lamp support|
|US2150542 *||Mar 30, 1937||Mar 14, 1939||Willis D Cook||Floodlight support|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US2663536 *||Sep 15, 1950||Dec 22, 1953||Thompson Electric Company||Gravity suspension hanger|
|US3872428 *||Dec 26, 1973||Mar 18, 1975||Gen Electric||Adjustable lampholder with articulated swivel mount|
|US4895329 *||May 24, 1989||Jan 23, 1990||Sloan Charles B||Flashlight clamp|
|International Classification||B60Q1/02, B60Q1/24|