US1281841A - Apparatus for cleaning films. - Google Patents

Description

Patented Oct. 15, 1918.

M. S. ROSENFELD APPARATUS FOR CLANINGILMS.

APPLICATION FILED MAY I4. |915.

l lr r '1" n al k T .'Zv I L. Y. i

,v l L M. AS. ROSENFELD.

APPARATUS FOR CLEANING FILMS.

APPLICATION FILED MAY I4. w15.

1,281,841. Patented 0n15,1918.

3 SHEETS-SHEET 2.

www

M. S. ROSENFELD.

APPARATUS FOR CLEANING FILMS.

APPLICATION FILED MAY I4| 19,15. 1,281,841. Patented 0@t.15,1918.

` 3 sHEETs-sHEI 3.

A A I m Ww IIII- .I II| |I.xI|IIr/A W J ,M fe f 7 Q --/w l M i Z2/ 1 .Av 6 Wm Ww? Q @M/ UNITEU STATES PATENT FFICE.

MAURICE S. ROSENFELD, F NEW YORK, N. Y., ASSIGNOR, BY MESNE ASSIGNMENTS, T0

JACOB SCHECHTER, 0F NEW YORK, N. Y.

APPARATUS FOR CLEANING' FILMS.

To all whom t may concern.'

Be it known that I, MAURICE S. ROSEN- FELD, a citizen of the United States, residingin the borough of the Bronx, county of Bronx, city and State of New York, have invented a certain new and useful Appa ratus for Cleanin Films, of .which thefolc lowing is a spec' cation.

p lamp, and dust.

My invention relates to an apparatus for cleaning motion picture films which in use become coated with oil from the projecting machine,-small particles of carbon from the The objects of my' invention are to produce a device in which foreign substances can be removed from the yfilm in a rapid and efficient manner, and without` injury to the film or the coating thereon.

These and further objects will more fully appear in the following ,Specification and accompanying drawings considered together or separately.

In the drawings in which the same parts i in all the figures are designated by similar brackets are of such alength that when the4 cover is thrown back,- it will'be entirely clear 4. At the other end o reference characters,' Figure l'is a plan view .of the device; Fi 2 is a longitudinal section taken on fthe l1ne 2--2 of Fig. 1; and

Fig. 3 is a transverse section taken on thel line 3 3 of Fig. 1.

In all the drawings, 1 representsl a bas-e plate on which is supported a trough 2 suported on a leg 3 and being provided at its ottom with a draw-off cock. The trough is provided at one end with an idle roller 4, and

at the opposite end with an idle roller 5. The roller 5 is preferably composed of soft rubber.

Extending from the back of the troughl .is a pair of brackets 6, 6 to which is hinged a cover or lid 7. The cover is ofa size to fitover the open top of the trough, and the of the trough. f The cover. is provided. with a roller 8 corresponding in position to, and` the surface of which en ages with, the roller the coveris a soft Specification of Letters Patent.

Application led Hay ..4, 1915. Serial No. 28,121. I

is adapted to engage, to lock thecover in closed position on the trough.

Mounted on the" base 1 is a standard 1 4, and pivoted at its center to the standard, is

an arm 15. The upper end of the arm car* ries a sprocket-'Wheel 16, which is driven by means of a chain 17 from a source of power (not shown). The lower end of the arm 15 is engaged by a spring 18 which acts to yieldingly hold the sprocket wheel 16 against the 4pull of the chain.

Projecting from one end of the cover is a pair of bracket arms 19, 19, in which is journaled a shaft 20. The shaft carries a sprocket wheel 21 and a felt or other builing Awheel 22. l

Carried in'webs extending from the end of the trough 2 and integral -with the baseV 1 is a stud 23, to which is pivoted anangle lever 24. @One end of the lever 24 is bifurcated, and carries a shaft 25, on which is mounted a buiiin wheel 26 similar to the wheel 22 and whlch is in contact with the same, `and a sprocket 21a similar to sprocket 21. The chain 17 passes under the sprocket 21, around the sprocket 16, and over the sprocket. ,This will causethe bufling wheels to rotate in the same direction. The tail of the angle lever is provided with a screw 27, which enga es with a lug 28 on the base. By means 0% the screw the wheel 26 may be brought into proper relation to the wheel 22.

Mounted in one side wall of the trough is a short'shaft 29 carrying at its inner end an arm 30, the free endof which is bifurcated, and carries a roller 31. The outer end of the shaft 29 is lprovided with a handle 32,- the free extremity of which carries a spring pressed pin 33 which may engage with a shallow recess in the side of the trough to lock thev handle in position.

Mounted on the base l adjacent to the buiiing wheels 22, 26 is a standard which carries at its upper end a guide roller 34 on which the iilin rests.

The operation of the device'is as follows:

The trough is partially iilled withv a solumatter which adheres-to the film,` and will not injure the vfilm body nor the photographic coating thereon. The cover is thrownback, and the arm 30 is raised. A filin is led fromv a reel (not shown), passed over the roller 4, and dipped into the so1u machine, if e negative.

tion. The roller is then lowered on to the lilm in the solution, to insure the film passing below the surface thereof. The end of the lilm is then luid on the roller then on the buling wheel 26, next on the guide pulley 3l, and finally secured to the shaft of a power driven take-up reel (not shown).

put in operation, the ilm isdrawn from the supply reel and through the solution in the trough. The solution will loosen or remove the foreign substances from the film as it, the film, passes between the rollers o and 9, they will be rotated by Contact with the film, and will squeeze or squeegee the solution from the film. The film now passes between the bufiing wheels 22 and 26 which are traveling at a high rate of speed. The butiing wheels will thoroughly dry the film and polish its surfaces.A The film is now wound upon the power driven reel, when it is in position to be used in a projecting machine, if a positive, or in a printing In accordance with the provisions of the patent'statutes, I have described the prineiple ot' my invention together with the apparatus. which I now consider to represent thebest embodiment thereof, buttI desire to have it understood that the apparatus shown is merely illustrative, and that the invention ca'n be carried out in other ways without departing from the spirit of my invention.

11u ving now described my invention, whit 35 I claim as new und desire to secure by Letters Patent of the United States, is as fol- A lows: The power reel andthe chain 17 are now 1. A device of the character described, having 'a trough for carrying s, cleansing 40 solution, smooth rollers .on the trough, a cover, smooth rollers on the cover, a smooth guide roller carried on an arm pivoted in the trough`l whereby a hn may be passed between the rollers on the trough and cover 45 and under the guide roller. y

2. A device of the character described, having a trough for carrying a cleansing solution, smooth rollers on the trough, a cover, smooth rollers on the cover, a smooth guide roller carried on an arm pivoted 'in the trough,'means for locking the guide roller in position, whereby a film may be passed between the rollers on the trough and'cover and'under the guide roller.

. This specification signed and witnessed this 10th day of May, 1915.

MAURICE s. RosENFEILD.

Witnesses: y

JACOB Scnmlrmiz, JOHN L. Larson.

Images