Patented Oct. 1, 1946 2,408,384 UNITED STATES PATENT OFFICE 2,408,384 FILM VIEWING DEVICE Robert W. Farrell, New York, N. Y. Application January 20, 1945, Serialv No. 573,651 2 Claims. 1 This invention relates to ?lm viewing devices. One object of the present invention is the pro vision of a ?lm viewing device in which anv end less ?lm can be positioned and moved in rela tion to a viewing opening. Another object is the provision of a viewing de vice constructed and arranged to facilitate the insertion of a ?lm in operative movable relation (Cl. 88-17) . 2 ing I6 and the light outlet 24 of the light com partment so that successive portions of the ?lm may be viewed while knob 36 is rotated. Casing I2 is preferably formed in two parts. One of said parts comprises the side wall 33 and the peripheral wall 38 and the other of said parts comprises the removable side wall or cover 32. The part which comprises side wall 30 and pe to the viewing opening and to the ?lm moving ripheral wall 33 may be molded or otherwise means with which the device is provided. 10 formed in one piece, and the tubular viewing A further object of the invention is the provi member [8 is preferably formed integrally with sion of a ?lm viewing device which is particularly the front portion of peripheral wall 38. The light well adapted to be used as a toy, without being compartment 22 is de?ned by a peripheral wall limited to such use. 49 which is preferably integral with side wall 30, A further object of the invention is generally to 15 said peripheral wall extending widthwise from provide a ?lm viewing device which is simple in the inner surface of side wall 30 to the inner sur construction and convenient in use and operation face of the opposite side wall 32. Peripheral wall and which can be produced at low cost. 41) is imperforate except at the light outlet open The above and other objects, features and ad ing 24 which is provided therein. When a ?lm F vantages of the invention will be fully understood 20 is mounted in chamber [4, light outlet opening from the following description, reference being 24 is sealed by said ?lm and since the light com had to the accompanying illustrative drawing. partment is otherwise in light sealed relation with _In the drawing: respect to chamber I 4, only the portion of the Fig. 1 is a plan view of a ?lm viewing device ?lm which passes across light outlet opening 24 embodying the present invention; ” is illuminated. It will be understood that light Fig. 2 is a sectional view on the line 2-2 of inlet openings 26 and 28 communicate only with Fig. 4; the interior of light compartment 22 and that Fig. 3 is a side view in elevation of the device; chamber I4 is completely closed to the entrance Fig. 4 is a sectional view on the line 4-4 of of light except that which passes through light Fig. 2; 30 outlet opening 24 and through the ?lm when the '2 Fig. 5 is a sectional view on the line 5-5 of Fig. latter is mounted within the casing in chamber l4. Side wall or cover 32 of Casing I2 is provided Fig. 6 is a front view of the device. with a continuous peripheral ?ange 42 which ?ts Referring now to the drawing in detail, the snugly within peripheral wall 38 in frictional en ?lm viewing device [0 embodying the present in gagement therewith. vention is preferably formed by molding the same The device is provided with means for mount from a suitable plastic but can be formed of any ing the endless ?lm in chamber l4 for movement other suitable material or combinations of dif around the light compartment 22 and across ferentmaterials. As here shown, said device is openings l6 and 24 in registry therewith in the in the form of a casing l2 de?ning a chamber I4 40 space between said openings. As here shown, within which an endless ?lm F is mounted for said mounting means comprises the mounting movement in relation to a viewing opening l8 members 44, 48 and 48 and also a portion 50 of provided in a tubular member I8 having a mag nifying lens 20 mounted therein. A light com partment 22 is positioned within chamber l4 and is provided with a light outlet 24 across which peripheral wall 49 of light compartment 22, said members 44, 45 and 48 and said peripheral wall portion 50 having arcuately curved surfaces which the ?lm F slidably engages during the the ?lm travels and which registers with the view movement of said ?lm by sprocket wheel 34. ing opening 16. Light entrance openings 26 and Members 44, 46 and 43, which are all of the same 28 for light compartment 22 are provided, as here construction, are preferably formed integrally shown, in the opposite side walls 3i! and 32, re 50 with side wall 3!} of the casing and extend from spectively, of casing 12. A sprocket wheel 34 is the inner surface of said side wall close to the in disposed within the chamber 14 of casing 12 and ner surface of the opposite side wall 32. It will is rotated by an externally disposed knob 36 for be noted that the ?lm guiding and mounting moving the ?lm bodily to bring successive ?lms means including members 44, 46 and 48 are po or portions thereof in line with the viewing open- ' sitioned in chamber l4 so that the ?lm is spaced 2,408,384 3 4 from the inner surface of peripheral wall 38 and Having thus described my invention, what I from the inner surface of ?ange 42 of side wall claim and desire to secure by Letters Patent is: 32. The portion of peripheral wall 38 adjacent 1. A ?lm viewing device comprising a casing sprocket wheel 34 is provided on its inner surface having a removable cover at one side thereof, means within said casing for mounting an endless with spaced ribs 52 which confront the adjacent ' ?lm insertable edgewise into said casing through peripheral edge portion of the sprocket wheel in the open side thereof when the cover is removed, position to hold the portion of the ?lm against a light compartment within said casing and posi substantial movement away from the edge of the tioned therein so that the ?lm travels around sprocket wheel whereby to improve the opera said light compartmentexternally thereof when tive engagement of the sprocket wheel in the said ?lm is moved for the viewing of successive sprocket holes of the ?lm, this effect being im portions thereof, said light compartment having proved by a transverse rib 54 (Figs. 2 and 5) pro a light outlet opening closed by the ?lm when vided on ?ange 42 of side wall 32. As shown in the latter is mounted in said casing, said com Fig. 2 ?ange 42 is also provided with another lateral rib 55 which is positioned to be slidably 15 partment having a peripheral Wall extending in the direction of the width of the ?lm and later engaged by the portion of the ?lm passing be ally between said cover and the side of said cas tween guide and mounting members Hi and 48. ing which is opposite said cover, said light-com It will be understood that when side wall or cover partment having a light-inlet opening in the 32 is removed, the ?lm can be inserted in and plane of one of said sides of the casing, said removed from the chamber l4 through the open casing having a peripheral wall provided with a side of the casing. ' viewing opening in registry with said light outlet As will be readily understood the viewing device opening in spaced relation thereto, and means can be used without requiring a lamp in the light for movingsaid ?lm across said openings in th compartment 22', since said light compartment is illuminated by light which enters said compart- - ‘space therebetween. 2. A ?lm viewing’ device comprising a casing ment through the light entrance openings 26 and having a removable cover at one side thereof, 28, and said light can be either daylight or arti? cial light of an illuminated room or of a lamp positioned externally of easing l2 in light trans means within said casing for mounting an endless ?lm insertable edgewise into said casing through mitting relation with the interior of light com 30 the open side thereof when the cover is removed, a light compartment within said casing and posi partment 22. However, it is within the scope of tioned therein so that the ?lm travels around the present invention to provide a lamp within said light compartment externally thereof when the light compartment 22. Preferably, the inner said ?lm is moved for the viewing of successive surface of peripheral wall d8 of the light com portions thereof, said light compartment having partment or the portion thereof which confronts a light outlet opening closed by the ?lm when the light outlet opening 24 is provided as illustrated latter is mounted in said casing, said compart with a white or other light colored light reflect ment having a peripheral wall extending in the ing paper or other sheet material 58, or alter direction of the width of the ?lm and laterally natively said peripheral wall can be formed of white or light colored material or its inner sur 40 between said cover and the side-of said casing which is opposite said cover, said light-compart face can be white or of other light re?ecting ment having a light-inlet opening in the plane color. Also, it will be understood that when a of one of said sides of the casing, said casing lamp is provided within compartment 22, the having a peripheral wall provided with a viewing device can be used to project the ?lm through opening in registry with said light outlet opening opening’ 15 onto a viewing screen, suitable lenses in spaced relation thereto, said ?lm mounting being provided, if desired in compartment 22 and means including a peripherally extending por in opening It, The above described viewing de tion'of said peripheral wall of said light com vice is intended primarily for use with endless partment, said peripheral wall portion being dis ?lms of standard 16 mm; width, but can be made posed adjacent a confronting peripheral wall in any suitable size for use with ?lms or other portion of the-casing, and stationary means dis transparencies of any other suitable width. posed adjacent a peripheral wall portion of the While I have shown and described the pre casing opposite said ?rst mentioned peripheral ferred' embodiment of my invention, it will be casing-wall portion and means for moving said understood that various changes may be made ?lm across said openings. in the space therebe therein without departing from the underlying idea of the invention within the scope of the tween, p appended claims. ' ROBERT W. FARRELL.