US1136703A - Developing-machine. - Google Patents

Description

C. K; NESHIME & S. L ROGNLIE.

' DEVELOPING MACHINE.

APPLICATION FILED NOV. 1, I913.

Patented Apr. 20, 1915.

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ATTORNEYS C. K. NESHIME' & S. J. ROGNLIE.

DEVELOPING MACHINE.

APPLICATION FILED NOVA, 1913.

Patented Apr. 20, 1915.

2 SHEETS-SHEETB.

UNITED STATES PATENT OFFICE.

CARL K. NESHIME AND SEVERIN J. ROGNLIE, OF MINOT, NORTH DAKOTA.

DEVELOPING-MACHINE.

Specificationof Letters Patent.

Patented Apr. 20, 1915.

Application filed November 1, 1913. Serial No. 798,671.

To all whom'it may concern:

Be it known that'we, CARL K. NEs'HIME and SEVERIN J. RoGNLm, citizens of the United States, and residents of Minot, in the county of Ward and State of North Dakota, have made certain new and useful Improvements in Delevoping-Machines, of which the following is a specification. 7

Our invention relates to improvements in machines for developing. photographic films, and it consists in the combinations, contructions, and arrangements herein' described and claimed.

An object of our invention is to provide a device by means of which a film may be developed, rinsed and fixed without the necessity of touching the film with the hand. A further object of our invention is to provide a device in which a longer film may be placed in the machine m such a manner as to insure no part of the sensltlve surface of the film coming in contact with any part of the apparatus. I v 1 Other objects and advantages Wlll. appear in the following specification and the'novel features of the device will be particularly pointed oiit in the appended claims.

Our invention is illustrated in the accompanying drawing forming part of this applicatlon in wh1ch Figure 1 is a perspective view of the device, Fig. 2 is a plan view of the device with the cover and handle removed, Fig. 3 is a section through a portion of the central shaft, Fig. 4 is a detail view of the operating handle, Fig. 5 is a section along the line 5-5 of Fig. 3, Fig. 6 is a bottom view of the cover, and Fig. 7 is a sectional View showing the manner of rotatably mounting the casing. 7

In carrying out our inventlon we prov de an outer receptacle 1 of substantially cylindrical shape except that it has an extension 1* on one side thereof. This outer casing is provided with a centralpin 2 (see Fig. 5) projecting upwardly from the bottom. In the bottom of the extension is an upwardly projecting pin 3, which is designed to receive the spool which forms the holder for the film. The casing 1- is provided with hinged. locking members 4.- near the upper edge thereof arranged to engage the cover 5, as shown in Fig. 5.

Disposed on the inside of the casing'l is a cylinder 6. This cylinder is provided .with

an upwardly extending post 7 ,which is hol-' bottom of the cylinder 6 and low so as to fit over the pin, 2, as shown in Fig. 5. On one side of the cylinder 6 is a cut-away portion 6 (see Fig. 3) and at one end ofthis cut-away portion is an outwardly projecting lug or stop member 6* which is arranged to engage a pin or lug 1 carried by the bottom of the casing 1. The latter is also provided with a springarm 1 under which the lug 6 may pass.

On the inside of the cylinder 6 is a cylinder 8 which has an opening or cut-away portion 8, similar to the cut-away portion 6". It is provided with a lu 8 arranged to engage a stop member or ug 6' on the it also'is designed to enter underneath an arm 6" on the bottom of the cylinder 6 similar to the arm 1 already described. The cylinder 8 is provided with an opening arranged to receive the post or central sleeve 7 which is attached to the cylinder. 6. A third cylinder 9 is provided with an o ening also arranged to fit over the post 7 and has a cut-away portion 9" and an arm9 arranged to engage a lug or stop member 8 A fourth cylinder 10 is provided with a sleeve 11 arranged to fit over the post 7; The. sleeve 11 is extended so as to provide a spacing member 11, thus raising the inner cylinder from the bottom of the cylinder 9. The sides of the inner cy inder 10 are also extended, as shown in Fig. 5, to space the two cylinders 9 and 10 apart. The cylinder 10 is provided on its bottom with a stop lug 10 arranged toengage a stop member 9 on the bottom of the. cylinder 9.

The sleeve 11 is provided withan opening 11 (see Fig. 3) arranged to recelve a spring locking member 12. This locking member is secured to a sleeve 13 slidably mounted on the sleeve 11. An upper sleeve 14: is provided contiguous to the locking member 12. It is made so that it may be pressed inwardly toward the sleeve 11, thereby push ing the locking member outwardly. The. locking member 12 is arranged to enter a peripheral groove 7 in the member 7.

The cover 5 is provided with an opening 5 which is covered by a screw cap 15, this opening beingin position to permit the introduction of fluid into the interior of theinner cylinder. A downwardly extending guide member 5 is secured to the cover and is arranged to'enter the inner cylinder, as shown. Asecond opening is provided in the triangular extension 1 and this opening is covered by a screw cap 17. @n the inner side of the cover is secured a sprinfg plate 18 which'serves the double purpose 0 carrying a pivot pin 19; for the film s o ol and also excluding light when the cap 1 is removed since it will be seen in Fig. 6 the member 18 fitscloselyinto the'space between the converging sides of the extension 1.

One end of the sleeve 11 is slotted to receive the ends of ahandle 20. The latter is preferably formed as shown in Fig. 4, and consists of a wire bent at its center back uponjitself, the ends of the wires being reduced to enter the opening in the sleeve 11, being held there by spring tension. A knob 21 is provided for the handle.

From the foregoing description of the various parts of thedevice the operation thereof may be readily understood. Whena long film of ten ortwelve exposures is tobe developed the device is set up as shown in Fig. 2. In this figur 6"-,z;8',-.9" are on the left of the stop members-1 6? and 8", while the stop member 1.

is on the left of the stop member 9*. v The coveris removed from the device and'the spool containing the film is placed on the bottom pivot member 3. The film is then passed through the cut-away portions 6, 8 and 9 and is secured underneath the spring fastening member such as that shown at 22 on the'inner cylinder 10. The cover 5 is now replaced, the spring pin 19 entering the opening in one end of thespool (not shown). The handle is inserted, the cap 15 withdrawn, and developer is poured in through the opening, after which the cap is replaced. Owing to the arrangement of the device only a small amount of developer need be used, thus for ten or twelve exposures only about four ounces of ordinary developer is required. The-handleis now rotated in a clockwise direction. As will be seen from Fig. 2'the inner cylinder 10 will commence to revolve, thus drawing the film from the real, the other cylinder remaining stationary. When the 1 inner cylinder has made one revolution the lug 10 will now be on the opposite side-of the'lug 9 and'iwill engage the latter lug, thereby rotating the cylinder 9. The film will then be wound on the cylinder 9 and it will make one revolution until the lug 9" comes on the opposite side of the lug 8 r when the engagement of these two lugs W111 cause the rotation of the cylinder 8. The

film will now be wound on-the cylinder 8' and it in turn will cause the engagement of the cylinder 6 until the film has been wound oif' the reel. By these means a con siderable length of film may be wound in such a manner that the sensitive side will' have nothing against it, thereby preventing.-

scratches on the sensitive surface. The device isnow placed on a stand such as that e it will be observed that the arms om that shown in Fig. 2

attains shown at 23 in Fig. lhaVing its upper edges recessed to receive the sleeve 11 on one side and-being provided with a pin arranged to enter the member 2 on. the other side (see Fig.5). The rotation is continued. This insures an even flow of developer on all parts of the film, and consequently an even development of the film. The developer is drained out of the extension '1", the screw cap 17 being removed for the purpose. It maythen be rinsed, and after rinsing a small quantity offixer such as sodium hyposulhte may be introduced by removin screw cap. 15. This small amount of ing solution is suficient to arrest development. The device may be taken from the su port 23, the cover' removed, and a suflibient amount of the fixing solution may be poured in the space between the cylinders to cover the film. The tank may now be left flat on i the tablemntil the fixing solution has had time to act. I

In removing the film from the machine the spool is removed with the left hand. By grasping the sleeve 11 the cylinders may be all removed when the locking member 12 is in the position shown in Fig. 3; With one hand holding the sleeve 11 steady the other may withdraw the film by pulling on it, the cylinders revolving and permitting the unwinding of the film in a manner just the reverse of that when winding the film, that is to say, the outer cylinder will make one revolution and then stop, the next cylinder will make one revolution and then stop, and so on until the film is-finally released.

'-If itis desired to use a slow developer the film maybe wound on in the manner described and a sufficient amountof developer to cover the film poured in when the appa 9- willstart to turn immediately, thus the film will be wound onthe cylinder 9 without being wound on the inner cylinder. If a still shorter film is designed to bevdeveloped the. inner cylinder 10 and the outer cylinder 9 may each 'be given a revolution when the film will be wound on the cylinder 8. Thus lfzilifnmachine may be used for any length of It will be seen that we have provided a device in. which a long film may be developed without any danger of injuring the sensitive surface of the film by contact with any parts of the apparatus.

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The apparatus is easily assembled or taken apart, since by pressing on the sleeve 14 the sleeve 11 will be unlocked from the post 7 thus permitting the inner cylinder to be removed. The other cylinders may be immediately lifted out successively.

We claim: 1

1. In a developing machine, an outer casing provided with a central pivot post, a cylinder disposed within said casing and provided with a sleeve arranged to fit over said central pivot post, a pair of concentric cylinders having openings arranged to fit over said sleeve, an inner cylinder having a central sleeve arranged to fit over said first named sleeve, and means carried by said second named sleeve for securing it against longitudinal movement with respect to the first named sleeve.-

2. In a developing machine, an outer casing provided with a central pivot post, a-

cylinder disposed within said casing and provided with a sleeve arranged to fit over said central pivot post, said sleeve having a peripheral groove, a pair of concentric cylinders having openings arranged to fit over said sleeve, an inner cylinder having a central sleevearranged to fit J over said first named sleeve, and means carried by said second named sleevefor securing itagainst longitudinal movement with respect to the first named sleeve, said last named meanscomprising a springpressed arm slidably secured to said last namedsleeve and adapted to extend through said last named sleeve into the peripheral groove of said first named sleeve.

3. In a developing machine, a casing provided with a pivot pin on its bottom, a cover r for said casing, a spring plate carried by said cover and provided with a pivot pin in alinement with said first named pivot pin, said cover being provided with an opening in registration with said spring plate, and means for closing said opening.

4. In a developing machine, an outer casnamed sleeve, a cover having an opening ar-' ranged to admit said second named sleeve, and a handle carried by sald second named sleeve exteriorly of said cover.

CARL K. NESHIME. SEVERIN J. ROGNLIE.

Witnesses:

ROBERT S. GILLESPIE, GRANT D. SHOFT.

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