US1742601A - Floodlight - Google Patents

Description

Jan. 7, 1930. H. A. KLIEGL. ETA.

FLOODLIGHT Original Filed Ilay 24, 1928 Q LL uomtoz Jan? 7, 1930. H. A. KLIEGL ET AL 1,742,501

FLooDLIGH'r Original Filed llay 24. 1928 2 Sheets-Sheet 2 Patented Jan. 7, 1930 UNITED STATES PATENT OFFICE HERBERT A. KLIEGL AND JOSEPH KLIEGL, OF NEW YORK, N. Y., ASSIGNORS TO KLIEG-L BROS. UNIVERSAL ELECTRIC STAGE LIGHTING CO., INC., OF NEW YORK,

N. Y., A CORPORATION OFNEW YORK a ELoonLIeH'r Original application led May 24, 1928, Sera1 N'o. 280,146. Divided and this application filed September 18, 1928. Serial No. 306,747.`

This invention pertains to fiood lights of the` type used largely in theatres, and is a di# vision of our application Serial No. 280,146 filed May 24, 1928.

The object of that invention is to so improve the design and arrangement of the apparatus as to greatly enhance the convenience and efficiency thereof. n

`The particular object of this divisional application is to disclose and claim the improved color screen devices of the parent invention.

Further and other objects and advantages will be hereinafter set forth in the accompanying specification and claim, and shown in the drawings, which by way of illustration show what is now considered to be the preferred embodiment of the invention.

Fig. lis a side view of the apparatus, partly broken away to show devices in the interior thereof. A

Fig. 2 is a rear view of the apparatus (from the left of Fig. l). i

Fig. 3 is a cross section on line 3 3 of Fig. l.

|The supporting and enclosing structure of the invention comprises, in general, a lamp housing 20, to the front of which is attached 3d the lens housing 22. On the front of the lens housing is mounted the screen housing 24. The whole machine is mounted on a standard 26 having a cross member 28 pivotally mounted upon the upper end thereof. Pedestals 30 Vstand on the ends of member 28. Projecting center of gravity of the structure in orderv that it may be readily movable by the operator and be easily retained in set position by the clamping screws;

In the lower portion of lens housing 22 are two parallel horizontal longitudinal rods36 upon which lens 38 is slidably mounted for the purpose of focusing and for the additional, purpose of bringing the lens to an achr head 4() is provided, upon which thelens structure is mounted. In order to move the lens back and forth on rods 36, we connect cross-head 40 by means ofa downwardly projecting lug 42 .to the upper strand of a chain 44 which passes over front and rear sprockets 46 and V48 respectively. Sprocket 46 rotates on a short shaft 50 whereas sprocket 48 is fast to a shaft 52 extending from side to side of the machine and supported for rotation in brackets 54. Each end of shaft 52 is provided with a crank handle 56 which has a pointer 58'passing over a numbered dial 60;v When handle 56 is turned by theoperator the lens is moved along rods 36, its exact position being always known to the operator by means Yof the pointer and dial. Attached to the lower strand of chain 44A land slidable on rods 62 is a counterweight 64 which lalways moves in a direction opposite to that of the lens, thereby preserving the center of gravity of the machine-in substantially fixed position regardless of the position of the lever.

Referring now to the screen mechanism at the front end of the machine, it will be noted that the interior of screen housing 24 isprovided with guideways 66 to accommodate five color screens 68. The .rearmost screen is shown elevated to operative position aligned witlilens 38, while the other four screens are shown in normal inoperative position at the bottom of housing 24. Each screen is simply a rectangular metal framework comprising bottom member 70 and side members v hinged cover 7 8 is raised and the screens are dropped between guides 72 to their inoperative position'at the bottom of housing 24.

Extending horizontally under each screenC7100 and substantially parallel to frame member 70 thereof, is a crank Aarm 80 having at its free end a grooved roller 82 contacting With member Onearone end thereof. The other end of each arm 8O is clamped to the front end of one of a set of concentric shafts 84, 86, 88, 90 and 92. These shafts eXtendto the -reair ofthe machine and are there supported 'by 4a braclet 94. -Each shaft 'is provided at its rear end with an operating handle 96 by which the shaft may be rotated to move an arm 8O from its normal horizontal `position to a v.vertical position as shown at the right Vin Fig. 3, and vice versa. lVhen an arm 80 swings from horizontal to vertical it raises .its corresponding screen to operative position fin front of opening 98 in the rear of housing 24, `and when the arm 8O moves back to .horizontal the screen :follows .it by .gravity to inoperative `posi'tienatthe bottom of housing 24. @here is no yoperative connection between-anyscreen and its operating arm except roll'er y82 which travels from end to v end of frame member 70. Vhenarm 80 yis in its raisedposition it is slightly Apast the vertical center line of shafts Sb-92, and therefore is automatically held in V.position by the Weight-of Ithe screen and also .'by the weight of the coordinated handle 96 which .isthen preferably horizontal. It will be understood that the position'ofany handle 96 will indicate to the operator the position of fthe screeny corresponding to that handle.`

The arc light and Yits .appurtenancesfare not a partof :the present invention, therefore they are .not described.

:It-is to be understood ythat the inventionjs not limited to theconstructionherein speciically illustrated but can loe-embodied in other fzforinswithout departure from Aits spirit as defined by the appended claim.

YAInapparatus of the class-described, in combination, .a 4plurality of 4screens at the front off :the machine, a set of vertical guicleyvays for each screen, a plurality of concentric -sliarfts extending from front to rear of the.

' apparat-us, a crank arm fast on the front end V"screen frosting by gravity on the end of they of cachot said shafts underneath oneof said screensVa'nd a handle on the rear end of Veach sha-ft whereby the operator at the rear of the.

machine may rotate any selected shaft to move a crank varm from horizontal to vertical position to-cause the corresponding screen to travel vertically in its guideways, said i :cra-nk rarm.

.In testimony whereof We hereto affix our signatures.-

` Y JOSEPH KLIEGL.

HERBERT A. KLIEGL.V

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