Reversible magazine camera
US RE21435 E
Description (OCR text may contain errors)
April 23, 1940. e. B. SCHEIBELL REVERSIBLE MAGAZINE CAMERA Original Filed April 14, 1933 Reiuued Apr. 23, 1940 UNITED STAT S amasmm MAGAZINE 0mm Gordon Brown Scheibell, Millburn, N. 1.; William 0. Scheibell administrator of said Gordon B.
Scheibell, deceased Original No. 2,008,110, dated July 10, 1035, Serial No. 066,094, April 14, 1933. Application for reissue August 20, 1936, Serial No. 97,042
My invention pertains in general to film apparatus and specifically relates to apparatus for reversibly feeding a film in a recording process.
One of the objects of my invention consists in providing a camera of the magazine loading type for producing a film having a plurality of adjacent longitudinal records thereon.
Another object comprises providing a construction of film apparatus including a film magazine adapted to be utilized in a plurality of recording positions with reference to an optical system.
Another object consists in producing film apparatus employing a magazine for supporting and reversibly feeding a film.
These and other objects will be apparent from the following, reference being had to the accom-- panying drawing in which like reference numerals designatecorresponding parts throughout and in which;
Fig. 1 is a perspective view of one embodiment of the camera and film magazine of my invention showing parts of the camera broken away to illustrate the interior of the magazine compartment;
Fig. 2 is an enlarged sectional view of one of the reels in the film magazine employed in my invention;
the view of the film magazine shown in section in Fig. 6;
Fig. 6 is a vertical sectional view of the film magazine of my invention showing the interior arrangement of film supporting and feeding mechanism;
Fig. 7 is an elevation of an end of the film magazine opposite from that shown in Fig. 5;
Fig. 8 is a portion of film exposed in accordance I with the principles of my invention and sche- 1 ticularly to Fig. 1, the camera structure I comprises a housing including a compartment 2 and a hinged closure member 3. The closure memher 3 is provided with a spring to for retaining purposes as hereinafter pointed out. The struc ture I includes spring driven mechanism known in the art for imparting intermittent reciprocative movement to a claw member 5 movable in a slot 6 within the front end of compartment 2. A pilot pin 4 is also provided and driven by the camera mechanism for ensuring ,the complete stoppage of the film while a picture is being taken. The driving mechanism within camera I also includes means for rotating a spur gear 1 upon which a small fin 8 is mounted. The gear 1 and fin 8 are accessible to the compartment 2 through a slot 9 in the camera structure i.
Upon the opposite side of the compartment 2 is another slot l0 in the form of a recess in the side wall of compartment 2 and extending longitudinally further into the compartment. The gear I and fin 8 are for the purpose of imparting rotary motion to reel mechanism contained in a film magazine which may be inserted in the compartment 2. It will be understood that certain mechanism internal of the camera structure I is of the usual form found in cameras of the general type indicated and for that reason is omitted in detail from the drawing in order to avoid confusion. Departure from the prior art in accordance with the principles of my invention is clearly indicated.
In accordance with my invention, a stationary optical system including a lens tube I! as well as an aperture l3 are provided in the camera structurei for focusing an image upon a film which may be held by a magazine within the compartment 2. This optical systemand aperture are especially proportioned for producing an image slightly less than half the width of the recording film. This may be seen from Fig. 1 in which the width of the film is represented by D and the width of the image with respect thereto is approximately represented by d. A suitable shutter is provided in the camera intermediate the aperture and lens tube and is driven by the camera mechanism in a well known manner.
A film magazine II is shown in Fig. l in position for insertion in the compartment 3. Re-
,ferring to Figs. 8 and 6, the film maganne Il comprises a casing including a container ll and cover lid II. The container Il includes end walls Ila and Ill: which are engraved with indicia in the form of the designations A and "B" to assist the operator in the Proper use of the magszine in a reversal recording process. Reels II and III are provided within the container II. It will be understood, in this specification, that the term reel is used to denote any kind of rotatable device upon which film may be stored.
The reel member II is mounted as shown in greater detail in Fig. 4. It will be seen that the reel member Il comprises two concentric collars Ila and Ilb. The inner collar Ila is rotatably and removably fitted upon a spindle post ll secured to one side of the container ll. This inner collar Ila is provided with an exterior annular channel in which an expanding spring Ilp is positioned. This spring Ilc is positively secured to the inner collar Ila and exerts pressure against the outer collar Ilb and forms. in efiect, a friction clutch which permits the speed of rotation of the outer collar Ilb to be retarded, due to an increasing accumulation of film on reel Il. without retarding the driving speed of rotation of the inner collar Ila. The reel Il has a slot ll for receiving a key member 21. The key member 21 is secured to a stub-spindle ll rotatably mounted in a bushing ll extending through the wall of the cover II. The sub-spindle ll terminates in a disc ll on the outside of the cover H. The disc ll is provided with a pin ll for engagement by fin l of spur gear I when the film magazine is placed within compartment 2. When the cover I! is placed upon the container Il, the key member 21 fits into the slot II and rotation of disc ll serves to impart rotary motion to the reel ll.
keyway lIc engaged by a set screw Ila carried by a removable collar lib mounted on spindle II. The spindle II is rotatably molmted through a bearing lib fixed to the wall of the container Ilb. The spindle ll terminates in a disc 22 external of the container I O. This disc I! is provided with a pin ll similar to pin ll for engagement by thefinlwhenthemagazine Ilisinsertedin compartment I in the proper position. It will be apparent that both of the reels ll and ll are of the internal slip clutch type and that the driving gear I may be positively geared with the driving mechanism within the camera structure I thus avoiding any form of driving belts or the like.
A perforated photosensitive film ll is initially wound upon the reel member Il and positively secured thereto by suitable means such as a spring clip ll. In the present embodiment, this;
film is of the Il millimeter type. At opposite ends of the container ll are two film guide members ll and ll, provided at their extremities with rollers ll, II, I2, and ll Referring to Fig. 5, it will be seen that an aperture ll is provided in the end Ila of container Il in juxtaposition with the film guide member ll. The aperture ll is positioned on one side of the end wall Ila of the container Il to align with the aperture II when the container Il is positioned in the compartment 2 with the end Ila of container Il facing the lens tube I2. An aperture ll is provided in the end wall Ilb of container ll. However, the
aperture ll is positioned upon the other side of 'tions in film ll roiintermittently moving the film past the apertures ll and ll. Apertures lla and lla are also provided. as shown, in the end-walls Ila and Ilb. respectively, for aligning with the pilot-pin 4 when magazine I5 is inserted in compartment 2. thereby permitting the pilot pin to intermittently engage with the perforations oi the film ll as the same is moved within the magazine. Itwillbeseeninl'ialthatthefilmllis threaded from reel member Il between guide member ll and end wall Ila of the housing ll and thence between guide member ll and end wall llb of container Il. The film then is fed to reel element ll, being positively secured thereto by suitable means such as a spring clip. Each of the guide members ll and ll is provided with a suitable tension plate for pressing the film against the apertures ll and ll, respectively. Any form of film guiding or tensioning members, in addition to those shown, may be employed within the magazine II as desired.
In the use of the reversible magazine camera of my invention, the magazine ll is initially prepared by disposing the film as shown in Fig. 6. The cover I1 is placed upon the container It so that the key member 21 engages the slot ll in reel member ll. Adhesive tape may then be placed upon the upper and lower sides of the magazine to hold the container II and cover il securely together. In the initial preparation of the magazine II, a protective strip II is placed upon the end Ilb of container l beneath the designation "B". This strip ll is preferably formed of suitable flexible material and includes two end portions Ila and Ilb having adhesive material thereon for attachment to the wall of the container II. The protective strip ll covers the apertures ll and ll and serves as a guide for the proper use of the magazine as will be hereinafter apparent.
As shown in Fig. l. the magazine It is inserted in compartment 2 so that the aperture ll is brought in alignment with aperture II and the position whereby the compartment 2 is rendered light-tight and the spring la, mounted upon the closure member I, presses against the film magazine "so that engagement of the member 5 with the perforated film ll is insured. The camera is then in condition for making a series of photographic records.
The driving mechanism within the camera structure I may be released in the usual manner l e ga s with pin 23 and causes reel member ll 15 to revolve, thereby taking up the film positively driven by the member I. As this procedure is followed, the lens I! directs light through aperture II and aperture II to produce a series of imagesuponthefilmliasshown inFig.8. Referring to Flg. 8, the film may be considered as moving in the direction indicated by arrow A whereby the images form a consecutive record schematically represented by the squares l, 2", "I, "4, in the order of exposure. During this exposure process, it will or course be recognized that the magazine It may be removed, if desired, with but the loss of the film at that time in position at aperture II. This is in accordance with usual film magazine practice and may be a desirable procedure for some purposes, such as the substitution of a more sensitive film to suit certain conditions of light or subject.
When the film has been unwound from reel member it and wound upon reel member 20 so that the limit of travel of the film I in the direction of arrow A", in Fig. 6 has been reached, the film will cease moving since the force exerted by member I and driving fin I is insufilcient to dislodge the film 35 from its positive connection with reel member IQ, due to the spring clip I6. Due to the cessation of movement or the film, the operator of the camera is apprised of the fact that the film has reached its limit of travel in one direction. In lieu of this procedure, the operator may watch the usual footage indicator, provided on thecamera structure I, for indication of the limit of. travel of the film in one longitudinal direction. When the limit of travel of the film has been reached, the closure member 3 is opened, and the magazine withdrawn from compartment 2. The protective strip I4 is removed from the end wall lib of the magazine and placed in the same relative position on the end wall Ilia of the magazine lli beneath the engraved designation "A". This is easily and quickly accomplished since the adhesive portions Ila and llb of the strip ll render the same easily attachable to and detachable from the surface of the film magazine.
As soon as the protective strip I4 is attached to the end lid of magazine It, the magazine I5 is replaced within the compartment 2 but in the opposite direction with the now exposed aperture 48 in alignment with aperture I3 and aperture ll in alignment with slot 6. The disc 22 will now register with slot III while the disc 30 will register with slot 9 so that the fin 8 may engage with pln ll on disc 30. When the closure member 3 has been positioned to close the compartment 2,.the camera is in condition for a further recording process. When the driving mechanism within the camera structure I is now released, the membe: 5 is moved in the same direction as before, but the film is now driven in a reverse direction with respect to the container l6 as indicated by arrows "3. The spur gear I, rotating in the same direction as before, now engages with pin 3| so that the reel member i9 is rotated to withdraw the film from reel member 20,. In the reversal operation the lens I! focuses the image through aperture 46 upon the other longitudinal portion of the film to make a series of pictures inverted with respect to the previously made series as shown in Fig. 8. In this reversal process, the film in Fig. 8 may be considered as travelling in the direction of arrow B to make the inverted series of images 5, 8, 1, and "8" in the order of exposure. When the film has been exhausted in the reversed direction the operator is apprised that the limit of film has'been reached as before.
The II is then withdrawn from compartmentlinorderthattheiilmmayberemoved from the magazine and developed.
In the development process,'the film 3B is split longitudinally and joined as shown in Fig. 9.
duced which includes both series of images 101- lowing in the order of exposure to produce a single sequence in the proper order. This composite record may then be vutilized in a projector for reproduction purposes.
It will now be apparent that I have provided a novel form of reversible magazine camera possessing many advantages. The camera system of my invention not only the inherent advantages of the magazine loading camera but also permits a greater number of images per foot of film as well as greatly increased economyand efiiciency of operation. While I have shown a preferred form of my reversible magazine camera, it will be apparent that changes can be made therein without departing from the intended scope of my invention. I do not therefore desire to limit myself to the foregoing except as pointed out in the appended claims.
What I claim as new and original and desire to secure by Letters Patent of the United States 1. A camera comprising, a housing structure including a compartment for receiving and positioning a film magazine having driving projections upon both sides-said compartment including recesses upon both sides thereof. for receiving said projections, and driving means in said structure and extending into one of said recesses for engaging with one of said projections on said magazineas inserted in said compartment.
2. The method of exposing a film in a plural apertured magazine in conjunction with a camera which comprises, masking one of said apertures and inserting said magazine in said camera so that a second aperture of said magazine can be used with said camera in a photographic process, and subsequently removing said magazine, unmasking said first mentioned aperture and masking said second mentioned aperture and reinserting said magazine in said camera for exposing said film through said second aperture in a photographic process.
3. The method of utilizing a film magazine in a plurality of recording positions in a camera which comprises adhesively attaching indicia means to one portion of said magazine while a second portion of said magazine is in operative juxtaposition with said camera in a photographic process, subsequently removing said indlcia means from said first mentioned portion and attaching the same to said second -mentioned portion of. said magazine, and utilizing said first mentioned portion of said magazine in operative juxtaposition with said camera in a photographic process.
4. Film apparatus comprising, a camera struc- 'ture' having a compartment, a film magazine said opposite ends for exposing the sensitized surface of an optical system'carried by said camera structure for directing light to a transversely restricted longitudinal portion of said film through one of said apertures when said casing is inserted in said compartment, driving means in said camera structure having a movable portion thereof accessible through one side of said compartment. and projections from said reels extending externally of said casing for selective engagement by said portion at said driving means depending upon the direction of insertion of said casing in said compartment. v
5. A film magazine comprising, a casing including a container and-cover, rotatable film moving mechanism within said container for reversibly feeding a film carried by said casing, an intermediary rotatable device mounted in said container for transmitting motion to said film moving mechanism for moving said film in one direction with respect to said casing, and an intermediary rotatable device mounted in said cover for transmitting motion to said film moving mechanism through said cover for moving said film in another direction, said last mentioned movable member being provided with a detachable mechanical coupling arrangement for conplingwith said film moving mechanism when saidcoverisinclosedpositionwithrespectto said container.
6. Film apparatus for reversibly feeding and exposing a film, comprising, a camera structure having a compartment, optical means carried by said camera for projecting into said compartment an image of anilluminated object external of said compartment, motion imparting means carried by said camera and having movable parts accessible in said compartment, said parts including perforation engaging means disposed along one side of said compartment for eifecting intermittent motion and take-up drive means disposed in another side of said compartment and magazinemeansforcarryingasensitiaedfilmand having a pair of drivable film take-up devices rotatably mounted transversely of said magazine with movable parts thereof respectively projecting from opposite sides of said magazine, said magazine and said compartment being cooperatively constructed to permit the slidable movement of said magazine in said compartment in either of two positions. inverted with respect to each other, in a direction substantially perpendicular to the axes of rotation of said take-up devices for eifecting a feeding and exposure processofthefilmcarrledbysaidmagazine means in' two different senses depending upon the position of said magazine in said compartment.
7. Film apparatus for reversibly feeding and exposing a film comprising, a camera structure having a compartment, optical means carried by said structure for projecting into said compartment an image of an illuminated object external of said compartment, motion imparting means carried by said camera and having parts thereof including an intermittent-motion perforation engaging means and a continuously rotatable element accessible in said compartment, a magazine casing insertable in said compartment in difierent positions and including a first and second reel element between which a sensitised film may be stored and reversibly fed, rotatable elements extending respectively from said reel elements and projecting externally of said casing for selectivelyimpartingmotiontosaidreelelementsin effecting a take-up operation at said film, s aid casing structure being insertable in said compartment in two diiferent positions and'constructed. in one position, to bring a transversely restricted longitudinal portion of said film into the field of said image and to permit the engagement of said film with said perforation engaging means for effecting the intermittent movement of said film past said optical means in one direction with respect to said casing while one of said projecting elements is engaged by said rotary element for effecting the take-up of said film in that direction, and in another position, to bring a different transversely restricted longitudinal portion of said film into the field of said image and to permit the engagement of said film with said perforation engaging means in a different sense for effecting the intermittent movement of said film past said optical means in a different direction with respect to said casing while a different one of said projecting elements is engaged by said rotary element for eflecting the take-up of said film in said difierent direction.
8. Film apparatus in accordance with claim 8 in which said magazine is provided with plural apertures, and film guide means for holding said film adjacent said apertures for cooperation with said optical system and said perforation engaging means in said different positions of said magazine to expose transversely different longitudinal portions of said film in said reversible feeding and exposure process.
9. A film device for reversibly feeding a film while exposing transversely difi'erent longitudinal portions thereof comprising, a camera or like device having an exposure compartment structure including a closure member, and having an optical system and a perforation claw disposed in one end thereof and a take-up drive element disposed in one side thereof, a film carrying magazine having side walls and edge walls with a perforation claw opening and an exposure opening in each of two differently facing edge walls thereof, and film take-up driving means carried by said magazine with rotatable parts thereof accessible on opposite sides of the magazine for selectively engaging said drive element, said compartment structure being adapted to receive said magazine and having parts thereof for engaging the edge walls of said magazine to selectively position the magazine in said compartment with either of said differently facing exposure edge walls adjacent said optical system and claw.
10. A camera including a housing, a film magazine insertable into said housing comprising, a support carrying a pair of reels and a sensitized film disposed therebetween, means carried by said support for guiding said film between said reels through displaced but substantially parallel plans of exposure with the sensitized surface of said film facing in opposed directions. grooves extending longitudinally of the interior walls of said housing, and means carried by said film magazine for engaging the grooves in said housing for predetermining the interrelationship of said film magazine and said housing.
11. A photographic recording apparatus comprising, a recording structure having a magazine recording compartment including a door therefor, a recording optical unit projecting into one end of said compartment, rotary driving means carried by said structure and having a driving element accessible in a side of said compartment, a light closed casing containing a photosensitive film and constructed to be inserted in said compartment through said door-way to consecutively occupy two inverted positions, rotatable reel means carried by said casing, guide means carried I by said casing for guiding said film between said mit said guide means to bring transversely different longitudinal portions of the sensitized surface of said film adjacent and in alignment with said optical unit, depending upon theposition of said casing in said compartment, and driving parts of said reel means accessible on opposite sides of said casing for enabling said driving element to consecutively drive said reel means in accordance with the position of said casing in said compartment.
12. The combination with a structure having a magazine compartment with an optical unit and perforation engaging means therein, of a film magazine comprising, a double position recording casing adapted to enclose a film having a double row of perforations, said casing being cut away to permit exposure of a longitudinally extending half portion of the film to said optical v unit as well as to permit access to one row of said perforations by said perforation engaging means in each position of said casing, and movable masking means carried by said magazine and movable from one position to another with respect thereto to selectively cover said cut-away portions of said magazine for either position of said magazine in said compartment.
13. The combination with a camera having a recording compartment with an objective in one wall, of a film magazine constructed for insertion in said compartment in alignment with said objective and comprising a container having substantially parallel front and back walls with openings therein for exposing the film in either of two positions, means in said container for feeding a strip structure in' said container past and adjacent said opemngs, grooves extending longitudinally of the interior walls of said compartment, and means projecting from opposite sides of said film magazine and engaging said grooves for efiecting precision alignment between said film magazine and said compartment.
14. In a camera, a film magazine compartment, a film magazine comprising, a rectangular casing having front and back walls in parallel but displaced planes, and each havingan aperture therein, guide plates mounted in said container respectively adjacent said apertures, a pair of reel devices mounted between said plates with driving parts of at least one of said reel devices being accessible externally of said casing to permil: a strip structure to be moved from one reel device to another and guided past said apertures, means projecting from opposite sides of said rectangular casing and coacting with means carried by opposite interior walls of said film magazine compartment for predetermining the path of movement between said rectangular casing and said film magazine compartment.
15. Photographic apparatus comprising a camera having a compartment witha lens in one end and including fixed positioning members on opposite lateral sides 01' said lens for receiving the apertured end of a magazine and positioning the'same laterally displaced with respect to the effective center of saidlens, a film magazine, and half width apertures disposed in opposite ends of said film magazine for exposing opposite halves oi a film in either of two positions, the opposite ends of said magazine being of substantially symmetrical construction and means for effecting slidable insertion between said lateral positioning members in a direction towards said lens in either of two mutually inverted positions of said magazine for recording mutually inverted adjacent records on the film.
16. Photographic apparatus comprising a camera having a compartmentand: door therefor, forming a light tight recording chamber with a "lens and exposureaperture at one end and ineluding .positioning parts extending on opposite lateral sides "of said aperture oflset with respect to the effective center of said lens and aperture to receive therebetween a film magazine for engaging the lateral side walls of said magazine to position said magazine laterally displaced with respect to the effective center of said lens and exposure aperture, and a symmetrical film magazine constructed for insertion between said positioning parts in either of two mutually inverted positions, said magazine comprising means for exposing different lateral portions of a film to said e po-Sure aperture, depending on the direction of insertion of said magazine between said positioning parts. v
17. The method of exposing an apertured magazine, carrying an aperture masking structure, in a magazine compartment which comprises, exposing a transversely restricted portion of the film through one apertured portion of said magazine which is substantially equal to one-half the width of the film, inverting said magazine and shifting said masking structure of said magazine so as to expose a different transversely restricted longitudinal portion of said film through a diflerent apertured portion of said magazine substantially equal to one-hali' the width of the 18. In apparatus for exposing a film, a plural apertured magazine in combination with a camera therefor including means for masking one. of said apertures while exposing a film in the magazine through the other aperture which is substantially equal to one-half the width of the film, and subsequently for masking the other of said apertures while exposing the film through the previously exposed aperture substantially equal to one-half the width of the film.
GORDON BROWN scnnmmn