US2537548A - Photographic printing apparatus - Google Patents

Description

Jan. 9, 1951 R. D. PRICE ET Al. 2,537,548

PHo'roGRAPHIc PRINTING APPARATUS v Filed April 14, 1947 2SheetsSheet l Ea F 1 poss D. 2DR/c5 v@wma-LL pR/CE IN VEN TORS Jan. 9, 1951 R. D. PRICE ET Al. 2,537,548

PHOTOGRAPHIC PRINTING APPARATUS Filed April 14, 1947 2 Sheets-Sheet 2 W ,7 poss @.PR/CE RUSSELL 5. IDR/CE "'f INVENToRs Patented Jan. 9, 1951 UNITED .STATES PATENT OFFICE P-HOT'GRAPHIC PRINTING APPARATUS .Ross.D. BriceandRussell S.Price, Decatur, Ill.

Application April 14, 1947, ySerial No. 741,192

3 AClaims.

Our invention has for its object to provide a photographic 'printer for .the production vof 'outline copies or silhouettes of flat objects 'such as pattern templates, or master patterns used in the clothing 'industry which Yare laid out vin the rst instance 'by the clothing designers, exact copies of which vare required for use `on the .shop cuttingtables.

vAnother object of our invention resides .-in the provision of a copy holding table on which a set of master ldesigns maybe secured, in conjunction with means located at one end .of the table for the convenient handling of a continuous supply Vof paper suitably sensitized toenable lengths `thereof to be withdrawn across the-table `and'over the pattern :layout -so that its photographic surxface will Jrecord the .outlines rof theseveral .pat- Itern pieces when lexposed `to *.the :action of .light rays.

Our invention further `comprehends `a table having `a transparent top composed .of .upper .and vlovverpanes of glass between 'which l.the template patternp'ieces -are assembled and held-against-disyplacement vwith means -for `mounting ladjaaent thereto a supply "of -suitable vpaper Lto'getl'l'er with means for automatically coating its lower side with alight sensitive solution fand drying the surface as the paper is drawn forwardly fever the table, 4Whereby a fresh photographic area is prepared to receive the silhouette recordings upon successive exposures.

To these vvand `other ends our `invention comprises further improvements Aand advantages as will be further described in the accompanying specification, Lthe vnovel features thereof being set `forth inthe appended claims,

Inthe drawings:

Figure l .is .a plan view -of a machine `constructed in .accordance with -our invention.

lFigure 2 is a sideeleva'tion .partly .in section to show .thejpaper coating and treating mechanism.

Figure 3 is anelevational View of the :left hand end of the machine shown in Fig. 1.

Figure 4 is a perspective view showing the cover for the .roll section of the machine.

Figure 5 is an -enlarged Vdetail sectional view taken on the line-5 5 of Fig. 1.

Figure 6 Iis a perspective vievvof a photographic copying machine embodying our invention.

Figure '7 is an enlarged horizontal sectional view taken on the line 'I--l of Fig. .1, and

Figure 8 is a sectional view of one of the paper guide rolls.

Similar reference numerals, in the several figures, indicate similar parts.

iIn the clothing industry the master designers upon originating vnevv designs for suits, dresses and other Yarticles of clothing Vlay out a series of 'patterns which others follow in first cutting the .cl-oth Aand subsequently in producing the iinished garments. In the :mass production of clothing :many copies `of the master patterns are required land the reproduction of these has long 'been a problem in the industry. This has been especially so because of the :necessity of accurately following the pattern outline. lt has been customary to make .duplicates by tracing around. the edges of the several pieces and then cutting around the edges of the tracing. This often damages the originals and inaccuracies often occur in the reproduction of other copies and .it will be readily appreciated that the design .of a garment, ora Whole line of garments as they are eventually completed, might materially diier vfrom the master `design should one or more original pattern pieces be destroyed'by a careless operator and imperfect coples thereof be substituted. Our invention aims to preserve the master patterns and assure the rapid rreproduction of exact `duplicates by a method we have adopted in conjunction With .an apparatus for photographically printing silhouettes of the several patterns which go to make up a single garment, which can be .subsequently cut out of the sheet by merely following the outline of the printed picture.

For the accomplishment of the forego-ing objects we have designed a Yprinting table having an open rectangular top frame comprising sides Ill-II and ends I2--I3 reinforced by .the underlying side .and end rails I4 and I5 and supported at its .corners on legs I6. The opening in the table top is closed by a plate YIl .of glass which is rmly held in place by a surrounding molding I8 which may be formed by rabbeting the top 0f the frame. A `glass cover plate I9, which serves as a backing for the plate I'I and cooperates therewith to create a copy holder, is connected to one of the'side rails, such as Ill, by apiano hinge 2t. One leaf of this hinge is permanently connected to the rail by a series of screws `2| While the other leaf is bolted to theedge of the `cover glass, as in- .dicated by 22 .in Fig. 7. From this arrangement of the parts it will be seen that by opening the cover plate I 9, by lifting its free edge, as shown in Fig. .6, a complete layout of master patterns can 'be arranged on the plate Il. Such a layout is indicated in rpart in Fig. 1 where certain pattern pieces are designated by 23. These are made of paper which is sufficiently :opaque `to-.interrupt the light rays from lamps, which are .indicated generally in dotted lines in Fig. 2. They are in sufficient number and wattage with suitable reflectors and are located far enough away from the layout and cover plates to direct a flood light of substantially parallel rays upon the objects being copied to avoid halation and resultant fringing in the prints. The lamps are, as will be understood, in a circuit which may be momentarily switched on and off.

At one end of the photographic table we locate the paper supply with its sensitizing and drying mechanism all of which is carried on av base 24 adjacent the table legs, having side pieces in which the ends of various rolls are journaled. At the outer edge of the base are a pair of pillars 25 which serve to carry the end of the arbor for a roll 26 of paper. The latter preferably has an inner surface suitably processed to receive a light sensitive coating, or if desired it may be a roll of sensitized paper and a hood, as shown in dotted lines at X, in Fig. 2, said hood being employed to protect the paper against premature exposure. However, for greater convenience in use, in view of the nature of the shops where the app-aratus is generally used we have found in practice that satisfactory results can be accomplished by applying the sensitizing material directly to the paper as it is unwound or drawn off the roll.

To this end we mount on the base 24 a tank or tray 2l for holding a suitable chemical solution and in cooperation therewith employ a coating roll 28 across which the paper is drawn beneath a companion presser roll 29. Located inwardly and above these rolls are a pair of squeezing rolls 30-3I which serve to remove excess moisture and following these are staggered drying rolls :i2- 33. The latter preferably have absorbent surfaces and the last roll over which the paper passes is located with its exit edge parallel to and below the proximate end of the table which is rounded, as indicated at 34 to facilitate the movement of the paper thereacross as it is drawn forwardly by pulling its free end.

At the far end of the table there is provided a suitable paper clamp. This we make of sheet metal having a downwardly extending flange 35, equal in length to the full width of the paper, pivoting it, as indicated at 35, and operating it into clamping position against the end rail of the table by a spring 31. Extensions 38 at the ends of the plate facilitate its release as shown in dotted lines in Fig. 5.

The several rolls around which the paper passes are carried in suitable anti-friction journal boxes mounted on the side pieces 39-40 of the base. The latter together with the side pieces and connecting baci; board 4| are constructed of metal, and form a cabinet which fits against the end of the table. The front of the cabinet is normally closed by a removable cover, shaped as shown in Fig. 4, which ts against the inturned edge anges Sta- Mia of the side pieces and is latched in place by providing at its lower end ears 42 provided with embossures or dimples 43 which snap over small projections 44 on the side pieces. At its upper end the cover is held in position by downwardly extending ears 45 which fit into recesses at the upper ends of flanges ta-40a. The upper extremity of the cover is positioned slightly above the curved edge 34 of the table to permit the free exit of the paper and at its lower end it is curled outwardly, as indicated at 46 and terminates in line with the meeting plane of the rolls 28-29 shortly paper is stretched over the table top and secured by the clamp 35 that it lies in close contact with the cover glass I9 and is thus devoid of wrinkles so that sharp images are reproduced on its sensitized surface. When the momentary exposure to the active rays of the flood lights below the table has been completed the exposed area of the paper is submitted either to a fixing bath, or washed, as the case may be, depending upon the chemical composition of the sensitizing material employed, as will be understood.

It is to be understood that certain changes in the structure and arrangement of the device may be made within the scope of the claims without departing from the spirit of the invention.

Having thus described our invention and what we claim as new and desire to secure by Letters Patent is:

1. A photographic printer comprising a table having an open top frame having a rounded edge at one side, a transparent layout plate for copy subjects spanning the frame opening, a transparent cover plate overlying the first mentioned plate, a hinge connection between the edge of cover plate and table top extending at right angles to said rounded edge, a cabinet in front of the latter located below the top of the table comprising a. platform, side walls, a back wall and a removable closure supported on the side walls, a tray for photographic chemicals within the cabinet, a coating roller in the tray and pairs of squeegee and drying rolls journaled in side walls of the cabinet, a support for a roll of paper mounted on said platform exterior of the cabinet said paper having its free end passing from the support through the cabinet in successive engagement with the coating roll, the squeegee and drying rolls, to the rounded edge of the table, and

beyond and over the last mentioned transparent cover plate.

2. A photographic printing apparatus for making photographic sllnouettes including an open top table, a transparent plate mounted on said table and completely covering the opening therein, a second transparent plate hingedly connected to said table so as to be moved into and out of covering relation with respect to the rst named plate whereby an object to be photographed mai be received therebetween, a platform secured to said table below the top thereof and extending outwardly therefrom, a pair of spaced standards carried by said platform spaced from said table, a photographic chemical receiving tray mounted on the platform between the standards and the table, spaced mounting means carried by the tray, a coating roll in the tray, a coacting presser roll thereabove, a pair of coacting squeegee rolls and a pair of drying rolls carried by said mounting means respectively between the standards and the proximate edge of the table top, a supply roll of paper mounted between the standards, the free edge of said paper passing successively between the coating and presser rolls, the squeegee rells and drying rolls and across the uppermost movable transparent plate, and a source of light beneath the flrst named transparent plate.

3. A photographic printing apparatus for making photographic silhouettes, in accordance with claim 2, wherein the several rolls are mounted so as to tension the paper passing therebetween and wherein there is means carried by the table top to maintain the free end of the paper in engage-V ment with the top surface of the second named transparent plate during exposure of the paper to the light source.

ROSS D. PRICE.

RUSSELL S. PRICE.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Name Date DAsar Nov. 19, 1901 Number Number Lesser Sept. 30, 1947

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