US1747930A

US1747930A - Developing rack

Info

Publication number: US1747930A
Application number: US213057A
Authority: US
Inventors: Cook Irving Lester
Original assignee: Individual
Current assignee: Individual
Priority date: 1927-08-15
Filing date: 1927-08-15
Publication date: 1930-02-18
Anticipated expiration: 1947-02-18

Description

Feb. 18, 1930. l. L. COOK DEVELOPING RACK Filed Aug. 15, 1927 INVENTOR ba/i5,"`

949. ATTORNEY Patented Feb. 18, 1930l j y 40 vided each having a keyway 9 receiving a key UNITED STATES rATENr IRVING LESTER Coon, OEGILLETT, WISCONSIN DEVELOPING RACK Application med August 15,1927.' serial No. 213,057.'

My invention relates to photographic film vmedium for rotating the power shaft. If deracks and an object of theinvention is to proaired the crank handle maybe removed and vide a device of this character whereby the the power shaft driven from any other suitiilms may be subjected to the developing bath able source of power.

andsubsequently rapidly dried. For the purpose of detachably holding the 55 The invention further contemplates a rofilms lto the disk the latter is formed with a tary lilm holder which is operable to rotate plurality oi spacedradial; rigid clamping the lilms in they developing bath and then opmembers 16 each of which is formed with a erated to dry the lilms by centrifugal action. right angularly disposed jaw 17 and a pair of Further the invention contemplates a hand lateral parallel flanges 18. Opposed to each 60 j device for developing and drying photoof these rigid jaws and cooperating theregraphic lilms. with in retaining a lilm therebetween is a piv- Withthe preceding and other objects and oted jaw 19 formed with an oppositely extendadvantages in mind the invention consists in ing right angular jaw 20. A pair oi'parallel the combination vof elements, constructions lianges 21 extends laterally from each of these and arrangement of parts and operations to pivoted jaws, the latter iianges being disbe hereinafter specifically referred to, claimed posed between the lianges 18 of each rigid jaw and illustrated in the accompanying drawand pivoted thereto by a pivot pin 22.' An ings, wherein: expansible coil spring 23 is interposed be- Figure 1 is aside elevation of my invention; tween each pair of coacting jaws to urge the 70 Figure 2 is a longitudinal sectional view movable jaws towards the liXed jaws.

of the same; As illustrated'in Figure 2, each alternate Figure 3 is an edge elevation, and; pair oi' coacting clamping members is oliiset Fig. tis a vertical section taken on line 4 4 from the opposite iaces oi' the disk so that a 25 of Fig. 3. vvmaximum number of photographic films may 75 Referring t0 the invention ill detail. a ubube carried thereby without contacting with lar member 5 carrying an inverted U-shaped each other, kbracket 6 at its inner end, is provided. To suspend the device from a support, a Y A film rotating dSk 7 iS arranged at 011e bracket 24 consisting of a horizontal rod' 25 34o lside of the inverted U-shaped member 6 which f carried by a collar or ring 26 and terminating 80 is lixed'to the projecting end of a Stub Shaft in laterally extending parallel inverted U- 8 journaled in the parallel legsvof the inverted shapedhoeks 28, adapted to engage a suitable U-shaped member, the latter being welded o1' support, is provided. The ring or collar 26 f otherwise Secured t0 thelower end 0f the tubllis adjustable longitudinally en the tubular 35 lar member. member and is retained in adjusted position 85 FCT 'GhSPUIPOSe 0f Permitting the ClSl t0 by a set screw 27, threadedv transversely be removed with a group of films attached through this Collar 0r ring. thereto for drying and a Sii- 00nd disk munted In order to prevent contact'ot the films with 011 the Stub Shaft, a Phu'allty 0f dsks 1S PI'O the walls ofthe develOPng bath receptacle, a

l 1001i the stub shaft A wincr nutll is threaded gage bar x29 extends parallel to the 'rear face f y of the disk and is attached to the U-shaped llelnstub Shaft to detachably hold the dlsk member. As illustrated in Figure 1, the ends To rOtate the disk a Power shaft 11 extendofthe bar project beyond th@ dlsk and the c o. L outer ends of the films carried thereby. It i5 it? irlttiiiidilltiiai will be Observed that by reason of this gage at its inner end meshing with a similar gear bm', the 51H15 Cannot @Ome 1H Contact Wth the 13 fixed t0 the Stub Shaft 8, A Crank handle walls ofthe receptacle and thereby damaged 14 detachahly held t0 the Outer end Ofi-,he or mutilated., due to the fact that the ends of L power shaft by a set screw 15 constitutes a the bar coming in contact with the walls of 100 2 Y f Y 11,747,930

the receptacle, Will space the disk a considerable distance therefrom.

In use, the disk carrying the films is rotated in the film developing bath by rotation of the drive shaft from the crank handle, or otherwise. In this manner the films are effectively developed-vvithout any danger of in'- jury or mutilation. After the films have been rotatedfor a sufficient period of time in the developing bat-h, they are dried by the centrifugal action of the rotating disk, which throws the moisture therefrom.

I claim l. In a device of the character described,- a bracket, a disk rotatably supported at one side thereof, means for attaching articles thereto to be dried, a tube extending from 1 the bracket and disposed parallel to the plane of rotation of the disk, and a drive shaft received in the tube and having operative connection With the disk to rotate the latter and dry the articles carried thereby.

2. In a device of the character described, a bracket, a disk rotatably supported at one side thereof, means for attaching articles thereto to be dried, a tube extending from the bracket and disposed parallel to the plane of rotation of the disk, a drive shaft received in the tube and 'having operative connection with the disk to rotate the latter and dry the articles Carried thereby, and a suspension' bracket carried by the tube bywWhich the de* vice may be suspended.

3. In a film drying device, a bracket, a film carrying disk rotatably supported at one side thereof, a tube extending vertically from the bracket, a shaft rotatable therein and having operative connection With thedisk, a crank handle upon the upper end of the shaft, and

a suspension bracket carried by the tube whereby the device may be suspendedfin a vertical plane.

4. In a drying device, an inverted U- shaped bracket, a horizontally disposed shaft journalled therein, a drying diskrevoluble With the shaft and removable therefrom, a

vertically disposed tube extending from the intermediate leg fof the bracket, a drive shaft in the tube and .having .operative connection With the first mentioned shaft, and a crank `handle fixed to the upper end of the shaft.

5. A film developing and drying devicey comprising abracket, a ilm carrying disk i rotatably supported at oneside thereof,',a

tube extending from the bracket, a shaft' revoluble in the tube and vhaving operative Vconnection with thedisk, a gauge bar` atr tached to the bracket andextendingat right angles` to thetube and-having its ends projecting beyond the edge of the disk for preventing the latter from coming in contact rotating' the shaft.

With the Walls or a receptacle When the disk is placed in a developing bath, and means for ravine Lns'rsn cook.