US1159700A - Developing apparatus. - Google Patents

Description

B. J. NASIEF.

DEVELOPING APPARATUS.

APPLICATION HLED MAY 22. 1915.

12 Figfii Patented Nov. 9

\\;IN\m

Dan:

BENJAMIN J. NASIEF, OF ROCHESTER, NEW YORK,

ASSIGNORQ TO ANSOO COMPANY, OF

BINGHAMTON, NEW YORK, .A CORPORATION.

imvntorine APPARATUS.

Specification of Letters Patent.

Patented Nov. 9, 1915.

Application filed May 22, 1915. Serial No. 29,926.

To all whom it may concern:

Be it known that I, BENJAMIN J. NAsrEF, a subject of the Sultan of Turkey, and resident of Rochester, in the county of Monroe and State of New York, have invented certain new and useful Improvements in Developing Apparatus, of which the following is a specification.

This invention relates to apparatus for use in the development of roll-films.

In preparation for the development of a roll-film it has been proposed to wind the film in connection with two strips of flexible material, which are interposed between the lateral margins of the successive turns of the film so as to space these turns apart to permit the free access, to all parts of the film, of the solutions used for developing and otherwise treating the film.

The present invention relates to apparatus operating on the principle just described, and one object of the invention is to produce a simple, convenient and reliable device for winding and supporting the film and the separating-strips, and for guiding these strips accurately during the winding operation.

Another object of the invention is to produce an apparatus which is of such form, and so compact, that it may be inclosed,

during the winding operation, within the forth in the following description of the.

tank which is subsequently used to contain the developing solutions, without requiring the use of a tank of inconveniently great capacity.

To the foregoing ends I have produced an apparatus comprising, in addition to means for supporting a film-spool and a winding-spindle, novel and eflective means for supplying and guiding the flexible strips employed as separators, and these means and other features of the invention are set illustrated embodiment of the invention.

In the accompanying drawings :Fig-

ure 1 is a side-elevation of apparatus embodying the present invention, with the tank or casing shown in Vertical section; Fig. 2

is a plan-view of the apparatus, with the winding-crank and the cover of the tank removed; and Fig. 3 is a detail-view, in side elevation, showing particularly the mode of attachment of the chains and the fihnleader to the winding-spindle.

In the illustrated apparatus two generally-circular metal plates 5 and 6 are connected and held in parallel relation by four posts 7, thus constituting a framework for the support of the winding-spindle and other parts. The posts are fixed rigidly 1n the plate 6, while their reduced upper ends pass loosely through openings in the plate 5. Latches 8, pivoted to the plate 5, may be swung into engagement with grooves in the upper ends of the posts, thus locking the plate on the posts, but the plate may be readily removed upon swinging the latches out of operative position.

The winding-spindle 9 is j ournaled at its ends in the plates 5 and 6, and is provided with upper and lower flanges 10 and 11 engaging the inner surfaces of the plates to prevent endwise movement of the spindle. The upper end of the spindle is threaded to receive a winding-crank 12, by which the spindle may be rotated.

A wire 13 extends parallel with the spin die, and is fixed at its ends in the flanges 10 and 11. This wire constitutes means for the attachment, to the spindle, of the end of the paper leader associated with the usual roll-film, this leader being introduced between the wire and the spindle as shown in Fig. 3. The spindle is also provided with a hook 14 by which the separating-strips 24: may be attached to the spindle, as hereafter described.

The strips 2": are supported on a reel 15, which has two pairs of flanges 16 between which the strips are wound. The reel is journaled, at its lower end, in the plate 6, while its upper end is journaled in a flat spring 17 riveted to the upper frame-plate 5.

For the sake of compactness the plate 5 is recessed so that the uppermost flange 16 may lie in the same plane as this plate.

The film-spool 18 is pivoted, at its lower end, on a stud l9 projecting upwardly from the plate 6, while its upper end is pivoted on a stud 20, carried by a flat spring 21 fixed to the frame-plate 5.

The rewinding operation is commenced by introducing the paper leader 22 between the wire 13 and the spindle 9, as above described, and attaching the strips24 to the hook 14. F or this purpose the strips are connected, at their ends, with a ring 25 which may he slipped over the hook, as shown in Fig. 3. The spindle may then be rotated, thus winding first the leader and then the film about the spindle, and at the same time drawing the strips 24 from the reel 15, so that they are wound betweenthe adjacent layers of ing-strips, during the winding operation, in

' passage the strips. This guide-rod engages slots27 in the frame-plates and 6,

' 'so that it is supported in vertical position but is movable toward and'from the spindle v 9. Flanges 28 at the ends of the guide-rod retain it in operative lposition with respect to the frame-plates. t the commencement of the winding operation the strips extend at anoutward inclination from the center of the spindle, but after a few turns, and before the paper leader has been entirely wound upon the spindle, the strips h'ave come to a position in which they are between the margins of the paper, and thereafter they are guided to this position by their passage through the openings in the guide-rod. The friction of the strips against the'g'uiderod causes the rod to be held close to the roll of material upon the spindle,-but as this roll increases in diameter the guide-rod moves outwardly in the slots-27.

- The springs 1 and 21, in addition to permitting the convenient introduction and removal of the reel 15 and the film-spool, subject these parts to sufiicient frictional resistance to their rotation to insure the necessary tension on the separating-strips and the film during the winding operation.

In order'that the winding operation just described may be done without the necessity of a dark-room, and also to permit the film, after having been wound, to be developed without further manipulation, I employ a combined light-tight casing and fiuid-tight developing-tank, which incloses the wmding-apparatus as shown in the drawings. This tank comprises a cylindrical body 29 with a removable cover 30. The cover is provided with an opening, by which it may be filled and emptied, through a collar 31 which is closed by a screw-cap 32 and is provided with light-baflies 33. 'A gasket 34: is placed around the upper part of the spindle, and interposed between the frame-plate 5 and the cover 30, to prevent leakage of liquid around the spindle.

After the film has been wound within the tank the developing, washing, and fixing fluids may be introduced and removed through the opening in the cover, and the crank 12 is then unscrewed from the spindle, thus fpermitting the cover to be removed. The rame with the arts supported there by is then removed om the tank, and the latches 8 are operated to release the frame 1 plate 5 from the posts 7 This frame-plate may then be removed,-thus perm tting the spindle to be withdrawn for convenience m unwinding the strips and the film born the spindle. After the parts have been dried the strips may be rewound on the reel 15, and the spindleythe reel and the frameplatei5 may then all be replaced in operative position. For the introduction of a filmspool it is unnecessary to remove the frame plate 5 fromthe posts, as the spring 21 'may 7 be bent sufiicien tion of the spool.

In thedrawings I have shown the sepay topermit the introduc rating-strips as in the form of chains, which may be conveniently made of nickel-plated metal, but it will be-understood that various other materials may be employed, the requisites of these strips being merely that they have the necessary thickness and flexibility and be capable of resisting the action of the solutions in which they. are immersed.

Y My invention is not limited to the embodiment thereof hereinbefore .described and illustrated in the accompanying drawings,

but may be embodied in various other forms within the nature of the invention as it is defined in the following claims.

I claim 1. Developing-apparatus having, in combination, a winding-spindle; a pair of sep-' aratmg-strips; a reel for supporting the strlps; means for rotatably supporting the spindle, the reel, and a film-spool; and means, intermediate the reel and the spindle, for guidinglthe strips to the spindle in position to engage the margins of the film.

2. Developing-apparatus having, in combination, a winding-spindle; a pair of sop-- arating-strips; a reel for supporting the strlps; means for rotatably supporting the splndle, the reel, and a film-spool; and means, intermediate the reel and the spindle, for guiding the strips to the spindle in position to engage the margins of the .film, said. means being movable away from the spindle during the winding operation.

3. l)evelopmgapparatus having, in combmatlon, a winding-spindle; a pair of separating-strips; .a reel for supporting the frame being provided with guideways ex tending toward the spindle; and a guide, for the separating-strips, provided with openings for the passage of the strips, and

movable, in said guideways, toward and from the spindle. v

5. Developing-apparatus having, in combination, a Winding-spindle; a pair of separating-strips; a reel for supporting the strips; and a fraine for rotatably supporting the spindle, the reel, and a film-spool, said frame comprising resilient members which engage the reel and the spool to subject them to frictional resistance against rotation.

6. Developing-apparatus having, in com' bination, a Winding-spindle; a pair of separating-strips; a reel for supporting the strips; a frame for rotatably supporting the spindle, the reel, and a film-spool, said frame comprising resilient members Which engage the reel and the spool to subject them to frictional resistance against rotation; and means, supported by the frame, for guiding the separating-strips from the reel to the spindle.

7. Developing-apparatus having, in combination, a winding-spindle; a pair of separating-strips; a reel for supporting the strips; and a frame for rotatably supporting the spindle, the reel, and a film-spool, the frame comprising two parallel plates and connecting members between the plates, and one of the plates being removable to permit the introduction and removal of the spindle.

8. Developing-apparatus having, in combination, a Winding-spindle; film-separating means; a reel for supporting the filmseparating means; a frame for rotatably supporting the spindle, the reel, and a filmspool; and a lightand liquid-tight tank, adapted to contain the frame and the parts supported thereby, and provided with a movable cover having an opening through Which the spindle is accessible so that the film may be Wound While inclosed Within the tank.

BENJAMIN J. NASIEF.

Images