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Publication numberUS1619198 A
Publication typeGrant
Publication dateMar 1, 1927
Filing dateJan 9, 1926
Priority dateJan 9, 1926
Publication numberUS 1619198 A, US 1619198A, US-A-1619198, US1619198 A, US1619198A
InventorsKarl Edison
Original AssigneeKarl Edison
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Illuminating device
US 1619198 A
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Description  (OCR text may contain errors)

Mwah' 1, 11927.` A www@ K. EDSON lLLUMINATING DEVIE Filed Jan. 9, 1926 l 2 Sheets-Sheet a BY M? ATTORNEY March 1 1927 K. EDISON ILLUMINATING DEVICE Filed Jan. 9, 1926 2 Sheets-Sheet sponding parts, Fi`

Patented Mar. 1, 1927.



Application lei January This invention relates to electric illuminating devices of thel type described in my U. S. Letters Patent No. 1,071,900 of September 2, 1913, primarily designed to be used for signaling or advertising purposes, but which can also be used for other purposes.

The main novel feature of my device consists in the provision of rocking reflectors, which are adapted to enhance changeable light effects.

' Another novel feature of this device is the construction of the same, which is such that it can be swung to different positions without interfering with the mechanism for operating the illuminating device and the rocking reectors.

Other novel features of my invention will be understood from the following detailed description thereof.

In the accompanying drawing, in. which similar reference characters `denote corre- 1 is a vertical section of my new device; ig. 2 a vertical section on line 2-2 of Fig. 1; Fig. 3 a front view `of the illuminating device and its reiiector; Fig. 4 an enlarged top plan view, as seen on line 4 4 of Fig.` l, of the standard showing .the electric wire connections leading to the illuminating device and to the motor operating the latter and thereiectors; Fig. 5 is a side view of the complete device showing the reector in adjusted positions; Fig. 6 a detail sectional View of the upperpart of the standard showing the electric connections, and Fig. 7 a detail view of a locking device between the illuminating device and the standard.

The illuminating device comprises a hollow or tubular standard 10 suitably reinforced by rods 10 or the like and formed at its bottom with a base 10.2. On the upper end of said standard, a horizontal bifurcat ed bracket arm 11 is turnably mounted and carries Aat itsl free end the illuminating device proper. The latter comprises a. casing 12 of any suitable shape and which, according to the present example, is composed of three sections 12, 122, 12a of sheet metal joined together. The front section 12 is formed at its bottom with a downwardly projecting lnember 13, the lower end of which is formed with or fixed to a sleeve 13', which is fixed on a spindlefor pin 14 journalled in the ends 11 of the bifurcated arm 9, 1926. Serial N0. 80,273.

The latter comprises bulb 18 borne in the socket 17, is a mantle" 19 of non-transparent material, which, in the present embodiment, is in form of a rigid cylindrical body, which, at its rear end, is closed and formed with a sleeve-like extension 19 fixed on a hollow shaft 20 mounted on the rod 17 In the open front end of the mantle, may be fitted a window of-ordinary glass or a lens, according to the pur pose for which it is used. v

'This mantle is perforated circumferentially at a' numberof places, the perforations 192 being either uniformly distributed or arranged according to a certain plan, and adaptedk to be lfitted Ywith windows 22 of either colored glass 4 lenses or crystals through which the light emanating from the bulb is projected against a reiector 21. The latter, according .tothe present embodiment, is in form of a truncated cone composed of a plurality of sections 21", 212, 213 of which either all or only `some are made movable, so that the light projected onto the movable sections will bein constant vibra-v tion. If diferently colored windows or lenses are'used, the moving reflector sections will cause an interplay of the different colors, whereby a very attractive and pleasant elfect will be produced. x

According-to the present example, to enhance the effect ofthe interplay of light rays or colors, the mantle is adapted to be revolved around the source of light. If instead of the colored lenses 22, lenses bearing different designs or characters are used, there will be a continuously changing reiiection of designs or characters, w ile the mantle revolves, so that the apparatus can be very advantageously and. effectively used -for advertising or signaling purposes. The constant visible vibration and interplay of colors also have a very soothing effect on nervous persons, so that'my apparatus may also be effectively used by psychopathists.

wheel 28 fixedgon the hollow shaft 20, on

which is fixed the mantle 19. When the motor is in operation, the mantle will be caused to slowly rotate around the axis of the bulb with the effect hereinbefore stated.

The movable reflector sections are each fixed to rods 21, whose ends are journalled in ears 29 provided at the front end of the reflector frame and of the casing. Fixed to the rods 21l of the movable sections and.

near the rear ends thereof, are members 30 projecting inwardly into the reflector and each -formed with a recess 30. Rotatably mounted in brackets 31 iixed to the frame 15, are pinions 32, which mesh with the large cog-wheel 28 and onwhose axes 32 are fixed crank arms 33. These crank arms are formed with crank pins 33 engaging the recesses 30 of the members 30. As the wheel 28 is being rotated from the motor, the pinions 31 revolve and through the crank arms 33 cause the reflector sections to rock in opposite directions around the axes of their rods 21l and transversely of the mantle.

The casing carrying the illuminating device is adjustably supported in the bifurcated arm 11.

In order to secure the device in its adjusted positions, I provide the following means. The ends 11 of the bifurcated arm serving as journals for the pin 14 are preferably disc-shaped, as at 112. One of said discs on its circumference is formed with two or more ratchet-shaped teeth 11". Interposed between said toothed part 112 of the arm 11 and the sleeve 13', is a plate 35, which bears on and is fixed to the pin 14. This plate is provided with two parallel bores 35 extending at a right angle to the pin 14 and in which are slidably mounted rods 36 carrying at `one end a push member 37 and at the opposite end amember 38. The latter is formed with a stop 38 rojecting transversely of the teeth 11a undp adapted, when engaging one -or the other of said teeth, to lock the device in the adjusted position. A spring 39 arranged between the plate 35 and the push member 3T tends to draw the member 38 into engagement with the toothed portion 112 of the arm 11.

The teeth are arranged so that the head may be held either in the position shown in Fig. 1 or in the position shown in Fig. 3. In either position, the lock pin 38 engages with a corresponding tooth 11l of the arm 11. To change the head from one position into the other, the member 38 by the push member 37 is first released from en agement with the toothed portion 112 o the arm 11 and then turned by means of a hand wheel 40 into the desired position, in which it becomes automatically locked.

The electric wires 41, 42 for the bulb and the motor are conveyed through the hollow standard 10 to a suitable brush mechanism provided in the upper end of the standard. This mechanism comprises a hollow member 43 fixed in the upper end of the tubular standard 10 and formed with a cylindrical neck portion 43. Mounted on said neck portion 43', is an insulation sleeve 43Il on which are fixed in spaced relation two ring-shaped conductors 44. The hub portion 11" of the rotatable arm 11 is formed with an upwardly pro'ecting cup-shaped member 45 in which are xed two oppositely arranged resilient metal arms 46 of whic one is adapted to constantly bear on and make contact with one of the rings 44 and the other is adapted to bear on and make contact with the other ring 44. The Wires 41 and 42 terminate at and are suitably connected with the metal rings 44 (Fig. 4), while from the contact arms 46 lead separate wires 47, 48 to the bulb and motor through perforations in the hub 11b outwardly along or through the arm 11 and through a hollow 13a in the sleeve 13 and an opening 13b in the projection 13 into the casing 12. This arrangement permits the turning of the arm 11 around the vertical axis of the standard without causing the twisting or breaking of the wires. 49 and 50 are suitable switches for the control of the bulb and motor.

lWhen used as an ordinary lam the motor is stopped so that neither t e mantle 19 nor the reflector will move.

1. In a device of the character described, a standard, an illuminating device comprising a vertically tiltable casing supporte on said standard and having a socket for an electric bulb, a driven spindle, a windowed mantle mounted around said socket and revolved from said-spindle, a reflector around said mantle having movable sections, a gear operated from said spindle, a plurality of pinions distributed around and meshing with said gear and crank, arms operated from said pinions and operatively connected to said movable section so as to rock the latter transversely of the reflector.

2. In a device ot the character described, a standard, au arm projecting therefrom and formed with toothed members, an illuminating device comprising a casing formed with a socket for an electric bulb, a revoluble windowed mantle around said socket, a reflector around said mantle having movable sections, driven means for rotating said mantle, means impelled from said driven means for reciprocating said movable sections transversely of said reflector, a spindle outside of said casing. on which the latter is turnably mounted and which is journaled in said toothed members of said arm,`and means ,supported on s aid spindle to yield transversely thereof, said means being formed With catches to cooperate with said toothed members, whereby said illuminating device is rendered adjustable to different 10 angles in vertical direction.

In testimony whereof I aflx my signature.


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2607916 *Dec 22, 1947Aug 19, 1952Bell Telephone Labor IncLight controlled channel deviation indicator
US2904913 *Dec 9, 1954Sep 22, 1959Derringer PaulAnimated display unit
US5186536 *Dec 16, 1991Feb 16, 1993Vari-Lite, Inc.Lighting instrument with movable filters and associated actuation mechanism
US5367444 *Jun 1, 1993Nov 22, 1994Vari-Lite Inc.Thermal management techniques for lighting instruments
US5552975 *Oct 31, 1994Sep 3, 1996Ho; Chen C.Illusive lamp
EP0474202A2 *Sep 3, 1991Mar 11, 1992Vari-Lite, Inc.Variable color lighting instrument
EP0547732A1 *Jul 22, 1992Jun 23, 1993Vari-Lite, Inc.Lighting instrument with movable filters and associated actuation mechanism
U.S. Classification362/35, 340/331, 362/272
International ClassificationF21S10/00, F21V9/10, F21V9/00, F21S10/06
Cooperative ClassificationF21S10/06, F21V9/10
European ClassificationF21V9/10, F21S10/06