US2070778A - Carrier for photographic sensitized material - Google Patents

Description

Feb. 16, 1937. N R B N 2,070,778

CARRIER FOR PHOTOGRAPHIC SENSITIZED MATERIAL Feb. 16, 1937. R BlLLiNG 2,070,778

CARRIER FOR PHOTOGRAPHIC SENSITIZED'MATERIAL Filed Jan. 28, 1956 ZSheets-Shet z Zap INVEZIZ; 4

Patented Feb. 16, 1937 UNITED STATES PATENT OFFICE CARRIER FOR PHOTOGRAPHIC SENSI- TIZED MATERIAL Noel Pemberton Billing, London, England Application January 28, 1936, Serial No. 61,163 In Great Britain February 13, 1935 13 Claims.

I proved form of light shielding carrier for the film or the like in which the latter can be sold or handled by the user, Without fear of access of light to the sensitized surface.

In the specification of my prior Letters Patent No. 2,017,709, dated October 15, 1935, a construction of film carrier was described in which inner and outer envelopes are employed and in which the outer envelope was finally closed by means of an adhesive and in which the sensitized material was also secured to an element of the carrier by means of an adhesive. It is, generally speaking, very undesirable that adhesive material should be available to the workers who are manufacturing and handling sensitized surfaces or that adhesive material should be used in assembly of a film carrier; and it is an object of the present invention to provide a film carrier which requires no adhesive to be used during the assembly of the sensitized element within the carrier.

According to the invention a carrier for photographic sensitized material comprises an outer envelope having one wall formed as a mask, and an inner slide to cover the aperture provided in the mask, wherein the outer envelope is formed entirely by folding the blank of sheet material and is retained in its finished form only by interlocking portions of the folded blank.

The invention also provides in or for such a carrier for photographic sensitized material, an outer envelope or blank therefor comprising a single sheet of material creased to provide a plurality of panels, the first of which is in the form of a mask and a (or the) second of which is formed with interlocking portions to secure it in position when folded over the first and any remaining panels. Preferably the sheet material is provided with a third panel to constitute a supporting and retaining backing for the sensitized material, which third panel is conveniently provided at that side which is located or to be located parallel with and adjacent to the open end of the folded envelope, with an extension foldable about one edge of the light sensitive material to lie against one or more margins of the front face of that material.

The inner slide of a film carrier constructed in accordance with the invention is preferably in the form of an envelope or pocket to enclose the light sensitive material which is passed into an open end of the said envelope or pocket. Preferably also the interlocking portions of the outer envelope or blank therefor comprise foldable flaps provided along edge portions of the blank to fold over and engage other edge portions thereof. 5

In order that the invention may be more clearly understood a preferred constructional example will be described with reference to the accompanying drawings, in which:-

Figure 1 is a plan view of the blank for the 1 outer envelope,

Figure 2 is a similar plan view of the blank for the inner slide,

Figure 3 is a rear plan view of the inner slide,

Figure 4 is a view showing the application of 15 the'inner slide to a position enclosing a film and film supporting portion of the blank shown in Figure 1,

Figure 5 is a front view of the completed carrier,

Figure 6 is a view of the completed carrier with 2 the slide withdrawn to expose the film,

Figure 7 is a section on the line 1-1 of Figure 5,

Figure 8 is a section on the line 8-8 of Figure 5, and

25 Figure 9 is a section on the line 99 of Figure 6.

Like reference numerals are employed to denote like parts in the several figures of the drawings.

The blank shown in Figure 1 is provided with folds dividing it into four panels, the first of 3 which is in the form of a mask Ill. Connected to the mask In on the left-hand side is a second panel H, the line of demarcation between the panels I0 and l I being indicated by a fold line l2. The upper edges of the panel II is bounded 35 by a fold line 13 which also bounds one edge of a flap I4 secured to the top edge of the panel I I. At the lower edge of the panel H is a fold line l5 which also bounds a flap l6 itself carrying a flap ll bounded by the fold line l8. As 40 will be seen from the drawings the flap ll has a length somewhat less than that of the panel II and the edges of the flap I 6 are shaped to run from the smaller length of the panel I! to the full length of the fold line l5. The upper flap 4 I4 is similarly provided with sloping edges I9.

The lower side of the mask I0 is bounded by a fold line 20' which also constitutes the upper boundary of a third panel 2| provided with a flap 22 along its lower edge 23 demarcated by the 5 fold line. The width of the panel 2| is slightly less than that of the mask ID or of the panel H which is of size substantially equal to that of the mask Ill. The junction of the panel 20 and the mask in is accordingly out with small fillet 5 portions 22 running from the reduced width of the panel 2| to the full width of the mask I0.

The right-hand edge of the mask I0 is bounded by a fold line 24 which also forms one boundary of a fourth panel 25, and the upper edge of the mask In is bounded by a fold line 26 also forming one boundary of a rectangular flap 2'! of relatively small width.

The blank shown in Figure 2 is also prepared from sheet material, and is folded up to the finished form shown in Figure 3 to constitute an inner slide or envelope for the carrier. As will be seen from Figure 2 the blank comprises a front panel 28 bounded by a fold line 29 which divides the panel 28 from a side panel 3i). The panel 28 is of slightly greater length than the panel 30 and is provided with a flap 3| at its upper edge. A further side panel is provided on the other side of the panel 28 being divided therefrom by a fold line 33 and the panel 32 is provided with a flap 34 at its lower edge. From the position shown in Figure 2 the side panel 30 is raised and folded over the panel 28 about the fold line 29 and the side panel 32 similarly raised and folded on top of the folded panel 3|] to which it is secured over the total surface of contact between the panels 30 and 32. An envelope which is open at both ends is thus produced and the flap 3| is then folded over the united panels 30 and 32 and secured in this position by means of adhesive. The flap 34 on the panel 32 is then folded upwardly from the inward position, that is to say, to produce an outward fold along one edge of the open mouth of the envelope; the envelope is then of the form shown in Figure 3, and a number of inner slides or envelopes can be prepared in this manner and stored for use in assembling a film carrier constructed in accordance with the invention.

In assembling a film carrier from the inner envelope or slide shown in Figure 3 and from the blank shown in Figure l the material having a light sensitive surface is placed on the panel 2| and the flap 22 folded upwardly about the line 23 and the lower edge of the light sensitive material so that the fiap 22 embraces the said edge. It will be understood that the light sensitive'surface will be the upper surface opposite to that lying adjacent to the panel 2|. The light sensitive material is conveniently formed from out film and the word film will be employed hereinafter to refer to the light sensitive material mounted within the carrier. The film supporting or backing panel 2| is then folded together with the film about the line 20 so that the light sensitive surface of the film is exposed through the mask whilst the film itself is supported by the backing panel 2|. The flap 21 provided along the upper edge of the mask is also folded upwardly and inwardly about the line 26 and the form of envelope shown in Figure 3 is passed over the film and its backing 2|. At this stage the parts will be in the position approximately as shown in Figure 4 in which film 35 and its backing 2| are shown passing into the open end of an en- Velope of the form shown in Figure 3.

The panel 25 is next folded upwardly about the line 24 to overlie the inner sliding envelope and the panel II is folded about the line l2 to overlie the panel 25, the flap M of the panel it also being folded downwardly and inwardly about the line l3 to embrace the upper edge of the panel 25. 'Ihe'flaps l6 and I! are finally folded about the lower edge of the assembled parts so that the flap l6 overlies the lower margin of the mask I0 and the flap I1 is folded inwardly over the inner edge of the said lower margin of the mask. It will be appreciated that the inwardly folded flap ill causes an outward springing of the lower margin of the mask l9 and facilitates a closing movement of the inner slide by ensuring that the lower edge of the front panel 28 of that slide passes underneath the lower margin of the mask II]. A front view of the completed and closed envelope is seen in Figure 5 and of the opened envelope is seen in Figure 6. According to a modified form of construction the flap I! may be folded outwardly, and the fiap I6 is then preferably passed into a slot along the base of the mask l0 so as to lie between the lower margin of the mask. Alternatively the flap may be folded outwardly by being doubled back on itself.

Figures 7, 8 and 9 represent the sectional views previously referred to but it will be appreciated that the various parts of the envelope have been drawn on a large scale and of an exaggerated thickness and with considerable clearance shown between the various parts in order that the figures may be understood. Ordinarily since the film carrier is made of sheet material the parts will lie very closely adjacent to and in contact with one another and the total thickness of the actual sections represented in Figures '7, 8 and 9' will be very small.

By reference to Figure '7 the order in which the panels 2|, 25 and H are folded to overlie one another will be appreciated and by reference to Figures 8 and 9 the manner in which the various flaps provided at the upper and lower edges of the panels of the blanks are folded into position will also be more clearly understood. Figure 9 illustrates more particularly the manner in which the flap 34 on'the inner envelope or slide cooperates with the flap M of the panel H to limit the extent ofthe outward movement of the inner envelope or slide.

It will also be noted from the drawings that the inner envelope is made longer than the outer,

envelope so that a free end is presented by means of which the inner envelope can be manipulated and conveniently a stick-on seal is applied to overlie a portion of the back of this extension and of an adjacent portion of the outer envelope so as to prevent accidental or unauthorized removal of the inner envelope until required for use. The foldable sheet material from which the carrier is formed will normally be of paper preferably of a type normally employed for such carriers'and comprising sheets of black and red paper secured together in surface contact. The two parts of the envelope will then be folded so that either the black or the red surface of the paper according to individual preference, constitutes the inner surfaces of the completed carrier. It is for this reason that the sectional views in the drawings show the various panels as consisting of two layers of sheet material.

The invention is not limited to the precise forms of blank described above for the inner and outer envelopes provided that the outer envelope blank affords the necessary interlocking between its parts in order to avoid the use of an adhesive. For example, the two side panels and 25 could be interlocked by other means than those described and additional flaps can be provided to take the place of the fiap I4 and tuck-in extensions i6 and H.

In a further modification instead of a short turned-in edge 22 of the upper end of the panel 2| for engaging the edge of the film, this turnedin portion could be replaced by an "extension equal in length to that of the paneizl 'an'd 'cut as a mask so as to'exposethe light sensitive surface of the film when folded back completely over the film. 'Ihepanel 2| might also be provided with an end extension of the side pan'el'25 which is the first side panel to be folded inwardly during assembly of the envelope.

It will also be readily understood th'attwo films may be placed in a single carrier in which they are normally both enclosed by the inner envelope. The outer envelope has in this case opposite faces which are each formed asa mask and the films are arranged with their sensitized surfaces facing outwardly, the panel providing a backing for the films extending between the latter. When the inner envelope of such a carrier is moved outwardly the two films will be exposed through their respectivemasks. In use, however, one carrier will be held in a light-tight closure member for the camera or other apparatus being used and only one sensitized surface will be treated in the apparatus since the closure member prevents access to the second film surface. To use the second film the carrier is reclosed, removed from the closure member or other apparatus and reinserted in the latter so that the positions of its opposite faces are reversed.

I claim:

1. A carrier for photographic sensitized material formed entirely of flexible paper-like material and comprising an outer envelope which has one wall apertured to provide a mask through which the sensitized material can be exposed and which is constituted by a folded blank of sheet material retained in its folded condition only by interlocking portions of the folded blank and comprising also an inner slide to cover the aperture of the mask.

2. An outer envelope or blank for a carrier for photographic sensitized material formed entirely of flexible paper-like material, comprising a single sheet of material creased to provide a plurality of panels, the first of which is in the form of a mask to constitute the front wall of the enevelope, and a second of which is formed with interlocking flaps to secure the second panel in position as the rear wall of the envelope when folded over the first and any remaining panels.

3. An outer envelope or blank according to claim 2, in which the interlocking flaps are formed for folding over edge portions of the first and any remaining panels.

4. An outer envelope or blank for a carrier for photographic sensitized material formed entirely of flexible paper-like material, comprising a single sheet of material creased to provide a first panel which is in the form of a mask to constitute the front wall of the envelope, a second panel which is formed with interlocking por-, tions to secure it in position when folded over the first and any remaining panels to constitute the rear wall of the envelope, and a third panel to constitute a supporting and retaining backing for the sensitized material within the folded envelope.

5. An outer envelope or blank for a carrier for photographic sensitized material formed entirely of flexible paper-like material, comprising a single sheet of material creased to provide a first panel which is in the form of a mask to constitute the front wall of the envelope, a second panel which is formed with interlocking portions to secure it in position when folded over the first and any remaining panels to constitute the rearwallof the envelopa and a third panel, to constitute a supporting and retaining backing for the sensitized material within the folded envelope, formed withan extension which is located or to be located parallel with and adjacent to theopen end of the folded envelope and is foldable about one edge of the light sensitive material to lie against at least one margin of the front face of that material.

6. A a film carrier for photogrphic sensitized material as claimed in claim 1 in which the inner slide is in the form of an envelope or pocket to enclose the light senstive material which is passed into an open end of the said envelope or pocket.

7. A film carrier for photographic sensitized material as claimed in claim 1 in which the inner slide is in the form of an envelope or pocket to enclose the light sensitive material which is passed into an open end of the said envelope or pocket, and in which interengaging fiaps on the inner and outer envelopes are formed to restrict the outward movement of the inner envelope or slide.

8. An outer envelope or blank for a carrier for photographic sensitized material formed entirely of flexible paper-like material, comprising a single sheet of material creased to provide a first panel which is in the form of a mask, a second panel which is located on one side of the mask and is formed with interlocking portions to secure it in position when folded over the first and any remaining panels, a third panel which constitutes a supporting and retaining backing for the sensitized surface and is formed at one end of one of the remaining panels, and a fourth panel located on that side of the mask opposite to that on which the second panel is located.

9. An outer envelope or blank for a carrier for photographic sensitized material formed entirely of flexible paper-like material, comprising a single sheet of material creased to provide a plurality of panels the first of which is in the form of a mask and a second of which is formed with interlocking portions to secure it in position when folded over the first and any remaining panels, one of which interlocking portions comprises a flap at oneedge of the second panel to fold over and embrace one margin of the mask and preferably that end margin which is remote from the open end of the carrier.

10. An outer envelope or blank for a carrier for photographic sensitized material formed entirely of flexible paper-like material, comprising a single sheet of material creased to provide a first panel which is in the form of a mask, a second panel which is located on one side of the mask and is formed with interlocking portions to secure it in position when folded over the first and any remaining panels, a third panel which constitutes a supporting and retaining backing for the sensitized surface and is formed at one end of one of the remainding panels, and a fourth panel located on that side of the mask opposite to that on which the second panel is located, one of said interlocking portions of the second panel comprising a flap at one end of the panel to fold over and engage one end of the fourth panel so that the second and fourth panels together constitute the rear side of the outer envelope.

11. An outer envelope or blank for a carrier for photographic sensitized material formed entirely of flexible paper-like material, comprising a single sheet of material creased to provide a first panel which is in the form of a mask, a sec- 0nd panel which is formed with interlocking portions to secure'it in position when folded over the first and any remaining panels, and a third panel, to constitute a supporting and retaining: backing for the sensitized material, fon'ned with, an extension which, is located or to be located parallel with and adjacent to the open end of the: foldedenvelope and isfoldable about one edge of the light sensitive material to lie against at least one margin of the front face of that material, one of said interlocking portions of the second panel comprising a flap at one edge of the second panel to fold over and embrace one margin of the mask and preferably that end margin which is remote from the open end of the carrier.

12. An outer envelope or blank for a carrier for photographic sensitized material formed entirely of flexible paper-like material, comprising a single sheet of material creased to provide a first panel which is in the form of a mask, a second panel which is located on one side of the mask and is formed with interlocking portions to secure it in position when folded over the first and any remaining panels, a third panel which constitutes a supporting and retaining backing for the sensitized surface and is formed at one end of one of the remaining panels, and a fourth panel located on that side of the mask opposite to that on whic the second panel is located,

one of said interlocking portions of the second panel comprising a flap at one edge of the second panel to fold over and embrace one margin of the mask and preferably that end margin which is remote from the open end of the carrier.

13. An outer envelope or blank for a carrier for photographic sensitized material formed entirely of flexible paper-like material, comprising a single sheet of material creased to provide a first panel which is in the form of a mask, a second panel which is located on one side of the mask and is formed with interlocking portions to secure it in position when folded over the first and any remaining panels, a third panel which constitutes a supporting and retaining backing for the sensitized surface and is formed at one end of the mask, and a fourth panel located on that side of the mask opposite to that on which the second panel .is located, said interlocking portions of the second panel comprising a flap at one end of the second. panel to fold over and engage one end of the fourth panel so that the second and fourth panels together constitute the rear side of the outer envelope, and aflap at the other end of the second panel to fold over and embrace one margin of the mask and preferably that end margin which is remote from the open end of the carrier.

NOEL .PEIVEBERTON BILLING.

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