US 1452438 A
Description (OCR text may contain errors)
Apr. W; 1923. mzfm C. H. RISE DEVCE FOR STRAIGHTENING PHOT'OGRAPHIC PRINTS Filed April l'l,I 1922 A TTURNEVS Patented Apr. 17, 1923.
UNITED STATES 1,452,438 PATENT oFFicE.
CARL H. RISE, OF RAPID CITY, SOUTH DAKGTA.
DEVICE FOR STRAIGHTENING PHOTOGRAPHIC PRINTS. 7
Application led April 11, 1922. Serial No. 551,621.
which have become curled during the process of drying.
As an object the invention aims to produce an extremely simple and inexpensive device of the character set forth by means of which the straightening of photographic prints may be expeditiously and efficiently accomplished.
As a further object the invention contemplates in a device for the purpose speciied which includes an endless belt trained over supporting rollers carried by a frame, a simple means for warpin the frame to effeet the straightening of t ebelt on the supporting rollers whereby to cause the same to run true.
The invention further contemplates in connection with a device of the character set forth, means adapted to coact with the belt for delivering the straightened prints therefrom in an orderly manner.
With the above recited and other objects in view, the invention resides in the novel construction set forth in the following speciication, particularly pointed out in the appended claims and illustrated in the accom-,y
panyin drawings, it being understood that the rig t is reserved to embodiments other than those actually illustrated herein to the y full extent indicated by the general meaning 'so F of the terms in which the claims are expressed.
ln the drawings- Figure 1 is 'a plan view of a print straightenin device constructed in accordance with the invention.
Fi 2 is a transverse sectional view thereof ta en approximatelyl on the line 2--2 of ferring to the drawings by characters of reference the device includes a base 10 from the upper side of which a pair of spaced end plates 11 constituting a supporting frame extend and are maintained in a vertical position-by means of feet 12 secured to the base by screws 13. The rear end of one of the plates is permanently secured by an angle bracket 14 of the base while the rear end of the op osite plate is provided wlth an out-turned. ug 15 through which an adJustlng screw 16 passes and is threaded into the base. A pair of horizontallv allgned parallel rollers 17 and 18 have their opposite reduced extremities 19 journaled in bearlng openings in the plates 11. One of the reduced extremities 19 is extended an appreciable distance beyond the plate 11 and has secured thereto a drive pulley or sheave 20. One end of the base is provided with an upstandlng supporting block 21 upon which a drlving motor 22 is supported and the shaft 23 of said motor has secured thereon a driving pulley 24. An endless drive cable 25 1s trained around the pulleys 20 and 24 whereby upon operation of the motor the rear roller 17 is positively driven. A pair of stationary guide rods 26 and 27 are mounted in the frame and supported from their opposite ends by the plates 11, said rods being disposed in a horizontal plane below the rollers 17 and 18. An endless belt 28 is trained around the rollers 17 and 18 with the upper lead 29 trained under the guide rod 26 and the lower lead 36 under the guide rod 27. This arrangement disposes the portions of the upper lead of the endless belt at `opposite sides of the guide rod 26 at substantially a right angle to each other or in substantially V-form.
In use and operation of the device the motor through the medium of the pulleys 20 and 24 and the driving cable 25 rotates the roller 17 to drive the endless belt 28 in the direction indicated by the arrow in Fig. 2 and the'photographic prints which have been curled during the drying process are then fed to the device with their leading edge disposed at the juncture of the upperA surface of the upper lead 29 with the periphery of the guide rod 26, said prints being disposed with their convex side upward. The movement of the endless belt will elect the reverse curling of the print as it is carried by said endle belt under the guide rod 26. 1n order to e'ect the deliveryy of the` the supporting frame for said rollers may be Warped by adjustments of the screw 1G in the base 10 whereby the plate l1 is lifted or depressed at its rear end.
I claim: v
1. A device for effecting the straightening of photographic prints which have become curled during the drying process, comprising a pair of rollers mounted in spaced relation, a stationary element; an endless belt trained around said rollers with the outer surface of the upper lead trained under the stationary element, and means for driving;` said belt.
2. A device for effecting the straightening of photographic prints which have become curled during the drying process, comprising a pair of spaced parallel rollers, an endless belt trained thereover, means coactin with the outer surface of one lead of sai belt to deflect the same for disposing the portions of said lead lying at opposite sides of said means at an angle with respect to each other, and means for driving the rollers and said belt.
3. A device for efectinlgthe straightening of photographicprints which have become curled during the drying process, comprising a pair of spaced parallel rollers, an endless belt 'trained thereover, means coacting with the outer surface of one lead of said belt to deflect the same for disposing the p0rtions of said lead lying at opposite sides of said means at an angle with respect to each other, means arranged in spaced superposed relation to that portion of the upper lead of the belt lying between the first mentioned means and the roller toward which the upper lead is moved, and means for driving said rollers and belt.
CARL H. RSE.