US 1840908 A
Description (OCR text may contain errors)
jan. 12, i932, M. LozlER ET AL.
IDENTIFICATION X-RAY FILM Filed NOV. l5, 1950 llllllllllllm' Mmm l/ll lNvENoRs TToN i Patented Jan. 12, 1932 PATENT oFFlvcE LOZIEB AND SAMUEL HERMAN, F BROOKLYN, NEW YORK IDENTIFICATION X-RAY FILM Application vfiled November-'15, 1980. Serial No. 495,853.
This invention relates to improvements in films having at least `one emulsified surface sensitive to actinic light, fluoroscoplc or other rays as used in photography for any purpose and with special reference to films adapted for dental', surgical and like practlce, together with their packages and the processes em loyed intheir use.
Ks the usual photographic films are not equipped with means to recelve a direct record or identifying date it is necessary to mark the same in some manner, usually after exposure, with a distinguishing character, as a numeral, and record any important data,vas
- 1.5 name, date, location of area radiographed,
etc., etc., on a separate object, as a card or the like, bearing the same character, and after the film has been developed, washed, drled and mounted, the record may be transferred to the mount.
Such operations consume conslderable time, are open to possible error leadlng to confusion, and a further objectlonable feature existing in common films, is the necessity pf using a mount for each individual film forl 1ts preservation and manipulation.
Having these matters in mind 1t has been an object of the present invention to provlde a film having an extension from one ofits 3o edges, susceptible of receiving an inscriptlon of any desired nature, the same belng permanent and in nowise affected by the light rays when the film is exposed to them.
Afurther feature isin the provision of tab elements on the films so arranged as to permit the use of two films in one packet, the tabs requiring no change in the voltage or milliamperage of the current, or in any way affecting, -orl being affected by, the developing and fixing baths to which the films are subjected.
Another purpose is to produce an improved film by which the use of individual mounts may be eliminated, handling ofthe developed film and itsY accompanying data being rendered easy and convenient. p These and other important advantages, which will .become apparent as the description progresses, are accomplished by the novel .50 construction, and combination of parts, and
of processes hereinafter described, as illustrated 1n the accompanying drawings, form ing a material component of this disclosure,
and in which Figure 1 is a perspective view of a packet of films made inaccordance with the invention, looking from the rear side thereof..
Figure 2 is a view showing a modification in packet construction.
Figure 3 is a plan view looking from the opposite side of the packet.
Figure 4 is a transverse sectional viewy taken on line 4-4 of Figure 3, and drawn to an increased scale.
F igu-re 5 is a perspective view of the film in detail.
Figure 6 is a fragmentary plan view of a lfoilm having a tab connected by a hinge mem- Figure 7 is a similar view showing a row As seen in the several views, a conventional type of packet 10 is employed to contain the film, the packet consisting of an envelope or wrapper' formed .from Aa sheet of strong opaque paper, impenetrable to ordinary light, but pervious to X-rays, the blank being folded to present a flat outer surface 11, its side and end portions 12 and 13 respectively being folded upon themselves and tucked in to be held by a gummed seal or label 14.
In the present construction it is preferred to form panels 15-15 in the outer wall 11 of the wrapper by rows of perforations 16-16 disposed to enclose two oblong rectangles, thus rendering it easy to remove either of the panels o r both at will and without the aid of any instrument, or a single removable panel may be used as in Figure 2.
thin sheet of metal lead 20 and between the two films and inturned e ges or label side of the packet, is usually disposed a sheet of absorbent 'paper 21.
One or both sides of the film may be provided with emulsion, the exposure being made from the folded seal or label carrying side of the packet.
From the foregoing it will be seen that the tab may remain permanently as art of the film or be removed at will; that t e inscription can be made in daylight without inju to the main body, u on turning the pane s outwardly, and that it is not affected y the X-rays when the film is exposed to them.
It will be understood that the inscr tion removes the emulsion, covers the emu sion or even penetrates the film as the writing is done; in either case the -tab changing to a diferent'color as compared with the inscription, when the film is developed by the usual standard developer and fixer.
If it be preferred the tabs, in place of being integral with the film, may be made separately and attached by any means, such as a hinge-like strip 22, as seen in Figure 6 or other analogous device.
It is furthermore obvious that the inscribed tab is convenient for use in the manner of a handle in viewing the film Without danger of scratching or marring its surface, as sometimes occurs when a mount is used, but the tab does not prevent the use of a mount if for some reason it be desired.
Althou h the improvements have been described with considerable detail and with res ct to certain articular forms of the invention, it is not esired to be limited to such details since many changes and modifications may well be made in the form, arrangement, proportions and sizes, without departing from the spirit and scope of the invention in its broadest aspect.
Having thus described the invention, what is claimed as new and desired to secure by Letters Patent, is
1. A photographic packet having a removable panel, a film provided with a flexible tab on one of its edges folded to extend under said panel, and a lead sheet interposed between said tab and the main portion of said 2. A photographic packet having a removable panel, a film having va flexible tab connected to one of its edges and folded to extend under said panel, and a leaden sheet between said tab and said film.
3. A photographic packet having a displaceable panel, and a film having one surface completely covered with an emulsion and the other plain, a tab susceptible of receiving an inscription connected to one of the edges of said film and normally folded to extend under said panel, and a leaden sheet disposed between said tab and the surface of said film bearing the emulsion.
4. In a packet for a photographic film, a film having a closely folded extensible tab, a wrapper to enclose said tabbed film, a metallic sheet interposed between the film and tab, and a removable panel integral with said wrapper which upon removal discloses the film tab.
5. In a packet for a photographic film, a film having a closely foldable tab partially separated therefrom, a light obscuring enve ope completely enclosing said film and tab, said tab being adjacent the wall of the envelope, a panel inte ally formed in the wrap er wall over sai tab, which upon remova gives access tothe tab said panel being partially separated from the wall by marginal erforations, and a lead sheet interposed etween the tab and film.
In testimony whereof we affix our signatures.
MATTHEW LOZIER. SAMUEL HERMAN.