137218223034.'

MayIZ9, 1945. P. H. DONALDSON 2,377,292 PHOTOGRAPHIC PROCESS Filed Sept. 6, 1944 Y (K 137218223034.‘ 091 I Patented May 29, 1945 2,377,292 UNITED.‘ STATES PATENT: OFFICE 2,377,292 rno'roommc rnoonss ApplicationPaul a. September Donaldson, 6, 1944,Arlington, Serial No. 552,904 '2 Claims. (01. 95-5) This invention relates to a photographic-proc The positive print is then covered over with a ess and more especially to a method of preparing sheet of tracing paper 3, as has been diagram photographic copies with captions and reference matically illustrated in Fig. 2 of the drawing. lines The outline of the positive print is traced on the An object of the invention is to provide an im tracing paper to provide a border 4 which leaves proved photographic process and to devise. a a marginal area 5 occurring all the way around method of preparing a projection photograph the border I in‘ which captions illustrated by the with captions arranged outside of the photo letters A, B and D respectively may be written in graphic subject matter in a marginal area. An or inscribed in some other suitable manner. other object of the invention is to provide a meth There are thus obtained on a sheet of tracing 0d of furnishing reference lines extending from paper the border 4 and captions A, B, and D. the captions in the marginal area to points on The tracing paper subject matter is then pho the subject matter. The invention also aims to tographed with another negative member 8, illus provide a simple, cheap and eflicient method of trated in Fig. 3 of the drawing. This may consist making projection photographs. 15 of a 5" x 7" Kodalith or- process ?lm. In carry The nature of the invention and its objects will ing out the operation, an image of the border lines be more fully understood from the following de 1 formed on the glass screen is adjusted until it scription of the drawing and discussion relating is of the same size as the corresponding area in thereto. - v > dicated by the continuous-tone negative I. This In the accompanying drawing: 20 is readily done with the aid of a pair of dividers. Pig. 1 is a plan view diagrammatically illustrat The portion of the negative 5 de?ned by the bor ing a photographic negative member’utilized with der 4 is then cut out to leave a space or opening the method of the invention; . ‘I, In this opening is ?tted the negative I, being Fig. 2 is a diagrammatic view illustrating a secured to negative 6 at adjacent edges by some tracing step in the method of the invention; convenient means such as strips of adhesive tape Fig. 3 is a plan view diagrammatically illustrat 8. Reference or lead ‘lines III are then drawn on '~ ing preparation of a second negative element; the negative I with ink, and these lines extend Fig. 4 illustrates a composite negative member; toward the captions. and This forms a composite negative which may be Fig. 5 illustrates a ?nished projection photo 30 exposed in any desired projected size upon a, sheet . _ graph made in accordance with‘the invention. of photographic paper 9, and there are obtained The method of the invention generally consists the subject matter 2, the captions A, B, and D in in preparing from ‘a negative member a photo black on the white background: and lead lines graph in some desired size, The outline of the ' extending inwardly from the captions in vwhite subject matter reproduced is then traced on trac 35 against the dark background of the subject mat > in; paper and captions drawn on the tracing ter 2. Preferably the arrangement of the subject paper in a marginal area outside the outline. A matter will‘ be such as that indicated in Fig. 5 to negative is prepared of the outline and captions provide a, relatively wide margin at the lefthand appearing on the tracing paper. The second neg- ' side for binding purposes. ative is cut away at its central portions to receive The method of the invention provides a con the first - negative. Reference lines are ?nally venient and eiiicient means of securing copies drawn on the ?rst negative to comprises. com properly captioned and identified in various sizes. posite negative member which may be utilized to vIf the printing comes through too black, the copy expose a projected image in any desired size with of Kodalith negative can be given a light wash the captions appearing in black and the lead lines 45 of a. reagent such as cocine. The dilution of this appearing in white over the finished photograph wash determines the printing density on the pro subject matter. jection' print. Those portions of the lines which Referring more in detail to the drawing, nu are drawn in on the areas of the first negative meral I denotes a negative member bearing an . will come ‘through as white lines, .while portions exposure of subject matter 2. This negative is 50 of the lines-drawn in the border 3 may be ob of conventional continuous-tone character, 4" by tained in black. Since the method uses both 5" or some other convenient size, and is utilized '_ original negatives, ‘all of their-‘quality is retained. to make a photograph or positive print in some Also as the combination can be projected, a great desired size, which preferably is considerably deal of ?exibility in the size of print is possible. ' larger/ than the sire of the negative illustrated in as While I have shown a preferred embodiment _ Fig.1. ' > of my invention. it should be understood that var 2 2,377,292 _ ions changes and modi?cations maybe 2. That improved photographic process which to, in keeping with the spirit of the invention as comprises copying with a continuous-tone nega de?nedby the appended claims tive, subject matter desired to be reproduced,‘ Iclaim: '- ' - r g . forming a positive print from the negative in a 1. That improved'phowgraphic process which relatively larger size, covering the positive print comprises forming a negative ofsubject matter ' with a tracing sheet, tracing the outline of the to be reproduced, preparing a positive from the subject matter in the positive print, introducing negative, tracing the outline oi'thefpositive sub additional subject matter to ‘the tracing sheet, ject matter on a tracing sheet, inscribing on the copying the tracing sheet with a second nega tracing sheet,-in a marginal area occurring out 10 tive element, said second negative being formed side of the outline,_ captions referring to the'sub of a size whereby the outline copied from the ject matter within the border, copying the sub tracingpaper corresponds to the size of the said ject matter thus inscribed on the tracing sheet first negative element, cutting away portionsot' with a second negative element, removing a cene the second negative element occurring inside of tral portion 0! the second negative element as the reproduced outline, securing the said first de?ned by the outlines, and securing in the space negative element in the resulting space in the remaining, the ?rst negative ‘element with ad- ' second negative element, applying additional, hesive securing means, then drawing on the ?rst subject matter to the composite negative, and negative reference lines which extend between then exposing to provide a positive print of the the caption subject matter of the second nega ‘2° composite negative. - tive element and points to which the captions ap PAUL n Donn-neon. ply in the first negative element, and then expos ing to provide a positive of the subject matter occurring in both negative members. Wetsuit-MM, M “ .

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