US 2278295 A
Abstract available in
Claims available in
Description (OCR text may contain errors)
Patented Mar. 31, 1942 UNITED STATES PATENT OFFICE FILM REEL CAN I William Wilson, Helsinki, Finland Application December 5, 1940, Serial No. 368,588
This invention relates to filmreel cans and has for an object to provide an improved construction wherein a coiled film is constantly held in its normally wound position when in the can. Another object of the invention is to provide a film can which may receive a coiled film or a reel and film with certain parts arranged to hold the film against unwinding.
A further object of the invention is to provide a film can provided with a resilient tongue or spring having one end connected with the wall of the invention, a film and reel being shown stored in the can;
Fig. 2 is a sectional view through Fig. 1 approximately on the line 2-2;
Fig. 3 is a resilient member disclosing certain features of the invention;
Fig. 4 is a fragmentary perspective view of part of a film can disclosing a modified form of tongue structure. I
Referring to the accompanying drawing by numerals, I indicates a can body and 2 a cover.
The can body I is preferably made of metal and has an upstanding wall 3 over which telescopes the flange 4 of cover 2. The structure just described is in common use today and, therefore, forms no part of the present invention except in combination.
As shown in Figs. 1 and 2, a reel 5 is fitted in the can body and a coil of film 6 is wound on the reel. It is to be understood that the reel is a well-known structure now in common use and the film is also a conventional film. It has been found that films when placed in a can will unwind to a large extent and the outer portion will press against the wall 3 so as to make it more or less diificult to remove the reel from the can body. This is particularly true where a coiled film is placed in the can body without first being wound on a reel. To overcome this and other difficulties, the structure shown particularly in Fig. 3 has been provided. This structure is applied to the can body as shown in Fig. 1 and functions to constantly holdthe film in-its proper wound position. ;As shown in Fig. 3,
there is provided a member Tof flexible material,
as for instance, flexible sheet metal. This member is provided with a body 8 formed with a pressed-out tongue 9, whereby an opening I0 is left. The tongue 9, at the point H, merges integrally into body 8, while the free end i2 is slightly curved and extends outwardly so that it will be nearer the center of the can body than the remaining part when the device is in use, as shown in Fig. 1. The ends of the body 8 are bent down to present oifset end members I3 and M and on each of these end members one or more prongs or spurs I5 are provided. By reason of the offset portions or shoulders 13 and I4, there is provided a space in which a humidifyingpad I6 is placed. This pad is placed between the body 8 and the wall 3. It will, therefore, be seen that the pad I6 is clamped in place and the moisture therefrom is allowed to enter the space I! whereby a proper humidifying action is secured. If desired, the device could be used without the pad'and the spring or tongue 9 function to hold the film 6 in its proper coiled position. The wall 3 is provided with suitable apertures through which the spurs or prongs extend. These spurs or prongs are upset or riveted at I8, whereby the member I is firmly clamped to the wall 3.
In Fig. 4 a slightly modified construction is provided wherein the member 1 is completely eliminated and the wall 3 is cut or pressed out at H! to form a tongue 9'. The tonguein this formof the invention functions in the same way as tongue 9 in Fig. 1. The opening I9 is not objectionable because the flange 4 of cover 2 fits completely over the wall 3 and thereby provides a complete metal enclosure for the film, which tenclosure is requiredby law in certain counries.
When it is desired to remove the reel and film, the operator merely grasps the reel at any desired point and pull the same from th can. If desired, the operator may depress the tongue or sprin 9 with one of his fingers. Usually the reel fits reasonably loose and may be grasped at point 20 and, in a certain sense, be swung out of the can body so that when removed in this manner it is not necessary to manipulat the spring 9. However, when the reel is placed in position in the can body or when a coiled film is placed in the can body free of the reel, the tongue 9 must be pressed toward wall 3 until sufiicient space is left for the insertion of the reel or the separate film. The tongue 9 is then released and the parts automatically assume the position shown in Fig. 1.
During transporting of the film it is naturally shaken up more or less and, consequently, becomes loose and unwound. By reason of the action of the spring 9, the film will not become unwound even though it is shaken up to an appreciable extent, whereby it is in good condition to be used as soon as removed from the can.
I claim: 1
1. A film can including a can body, a member sulting by reason of the tongue being pressed therefrom.
2. A film can having in combination, a device secured to a wall of the can within the same for preventing unintentional unwinding of the film, said device including a member having an opening therein; and a humidifying pad held in place by said member by reason of the manner in which said device is secured to said wall and so that said pad may exude moisture through said opening.
3. A film can having in combination, a device comprising a piece of resilient sheet material cut made from resilient material positioned in said 15 ber and said wall with the center portion thereof exposed through the opening in said member reand formed to provide a member having an opening therein, and a resilient tongue integrally connected at one end with said member; means engaged with said member and a wall of said can to fixedly secure said device in place within said canso that said tongue functions to prevent the unintentional unwinding of the film, and a humidifying pad arranged between said member and said Wall held in place thereby and so that said pad may exude moisture through said openin%.
. WILLIAM WILSON.