US638744A - Photographic-background carrier. - Google Patents

Description

Patentedv nec. l2, |899.

' E. A; NELsuN.

PRUTUGRAPHIG BACKGROUND CARRIER.

(Applicativi: led Mar. 10, V1899.)

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Patented Dec. I2, |899. E. A. NELSON.

PHTGBPHlC BUKEROUND CARRIER.

(Appnmio med nu. 1o, 1899.)

(No Model.)

2 Sheets-Sheet 2. /8

f El TH: mais PETERS co. Pscruumo.. WASHINGTON, DA cl lJNirED STATES PATENT EErcE.

EMIL A. NELSON, OF IIALLOOK, MINNESOTA.

PHOTOG RAPHlC-BACKG ROUND CARRIER.

SPECIFICATION forming part of Letters atent No. 638,744, dated December 12, 1899.

Application led March 10, 1899.

To all whom it may concern,.-

Be it known that I, EMIL A. NELSON, of Hallock, Kittson county, Minnesota, have invented certain Improvements in Background- Carrying Frames, of which the following is a speciiication.

My invention relates to improvements in frames for carrying photograph-backgrounds, its object being to provide an apparatus for supporting a series of such backgrounds in stretched position and allowing any one of such backgrounds to be carried into position for use.

To this end my invention consists in the combination hereinafter particularly described and claimed.

In the accompanying drawings, forming part of this specication, Figure l is an end view of my invention. Fig. 2 is a similar view with one of the backgrounds turned into position for use. Fig. 3 is a view of two of the supporting-brackets for backgrounds and of the flexible carrier. Fig. it is a view on line :c of Fig. 1, and Fig. 5 is a top view.

In the drawings, A represents the frame, consisting of end uprights 2 and 3 and connecting cross-barsfl, 5, 6, and 7. Having fulcrum support 8 upon the cross-bars 4 at the ends of the frame are brackets 9 'and 10. Said brackets are each formed at one end with a hook Il, in which hooks normally rests the rod 12 of the background. Rolls 13 are journaled in the brackets intermediate of said hooks and the pivotal supports. The opposite ends of the brackets 9 are connected by rods 14 with levers 15, fulcrumed upon the cross-bar 5. Said levers 15 are adapted to be turned, as shown in Figs. 1 and 2, to carry the connected brackets into an upwardlytilted position and hold them in such position, for the purpose hereinafter described.

16 represents the flexible chain-carrier passing over sprockets 18 at the ends of the vertical frame-pieces, one of said carriers being provided at each end of the frame and the sprockets thereof connected by rods 19. The carriers are actuated by a sprocket 20, engaging with the carrier at one end of the frame, said sprocket being journaled in a casting 21, adj ustably secured upon the crossbeam 6 and provided with an actuating-handle 22. A suitable pawl 23 is provid-ed for Serial No. 708,489. (No model.)

locking the sprocket in set position.- Each carrier is provided with a hook 24, which is adapted to en gage with the rod 12 of the background to carry the same into position for use, the background being held stretched by a connected weight 25, the cord. of which passes over pulleys 26 and 27, journaled in the lower and upper cross-bars.

Operation: rlhe backgrounds are normally supported by the brackets 9 and lO. When it is desired to use any one of the backgrounds, the brackets which support such backgrounds are upwardly tilted by means of the connected lever 15. The carrier then being actuated, the hooks 24 engage with the rod of the background, carrying said rod and background between the sprockets and into position adjacent the front of'the frame, as shown in Fig. 2. The background in being carried to such position passes over the roller 13, journaled in the brackets. The background after being carried into the position shown in Fig. 2 is held in such position by means of the pawl 23. Then it is desired to return the background to the interior of the frame, the pawl is released, allowing the carriers to be actuated by the pull of the weight 25 upon the background. As the carrier is actuated sufficiently to bring the rod 12 of the background into the hook of the bracket said brackets will be turned upon their fulcrums into downturned position.

Among the advantages of my construction is the holding of the background at all times stretched, and thus preventing injury by cracking and without the face of the background touching any part of the apparatus in operation.

I claim- 1. In an apparatus of the class described, the framework, devices carried thereby for independently supporting a series of backgrounds, a carrier, and means for actuating any desired one of said supporting devices, to bring the background supported thereon into position to be engaged by said carrier.

2. In an apparatus of the class described, the framework, devices carried thereby for detachably supporting backgrounds, a carrier, and means carried by said carrier for engaging with said backgrounds and carrying them along with the carrier.

IOS

3. In an apparatus of the class described, the framework, brackets pivoted thereon for removably supporting backgrounds, endless carriers, means for turning said brackets upon their pivots, means carried by said carriers for engaging with said backgrounds, and means for actuating said carriers.

4. In an apparatus of the class described, the framework, endless carriers, devices carried by said frame for normally supporting a series of backgrounds in ext-ended position, and adapted to be actuated to carry any one of said backgrounds into position to be engaged by said carrier.

5. In an apparatus of the class described,

the framework, pivoted devices/carried thereby for removably supporting backgrounds, carriers, hooks carried by said carriers, means for actuating said suspending devices to carry the background into position to be engaged by said carriers, means for actuating said carriers, and weights for holding said backgrounds extended.

In testimony whereof I affix my signature in the presence of two witnesses.

EMIL A. NELSON.

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