US1180513A - Photographic-printing mask. - Google Patents

Description

T. H; mustv. 'PHOTOGRAPHIC PRINHNG MASK,

APPLICATION FILED APR. (3, I915.

Patented Apr. 25,1916.

H. LINDSEY. PHOTOGRAPHIC PRINTING MASK. APPL|CATION FILED APR. 13.1915.

3 SHEETS8HEET 2:

T. H. LINDSEY. PHGIOGRAEHIC RRQNT ING MASK. ABPPLICATEOR FILED APR. I3, i915.v

111,513. Patented Apr. 25,1916.

"3 SHEETS-SHEET 3.

7 l I I I l l I g; 15 Q J1 4 J 1 I L/ \W I UNITED STATES PATENT OFFICE.

THOMAS LINDSEY, OF ASHEVILLE, NORTH CAROLINA, ASSIGNOIt OF ONE-HALF TO I JAMES K. COWAN, 0F ASHEVILLE, NORTH CAROLINA.

PHOTOGBAPHIC-PRINTING MASK.

Specification of ietters Patent.

Patented Anr.2'5. 1916.

Application filed Am-i113, 1915. Serial N 0. 21,072.

T 0 all whom it may concern Be itknown that I, THOMAS H.. LINDSEY, citizen of the United States, residing at Asheville, in the county of Buncombe and State of North Carolina, have inventedcer' tam new and useful Improvements improve structures of this particular type and to embody. in a single-organization or machine, means for measuring or gaging the size of the photograph prior to the printing thereof; means to positively hold the film or negative and the sensitized paper uniformlyin engagement with the exposure glass; means to lock the various adjustable parts in adjusted position; means to make and break the electrical circuit necessary to the production of the'mentioned artificial light through manipulation of the pressureback handle; and means to releasably hold the film against. its natural tendency to curl while in the act of printing.

The above and additional objects are accomplished by such means as are illustrated in their preferred-embodiment in the accompanying drawings, described in the following specification and then more particularly pointed out in the claims which are appended hereto and form a part of this application.

In describing my invention in detail .reference will be had to the accompanying drawings wherein like characters denote like or corresponding parts throughout the several views, and in which Figure 1 is a perspective view of my improved photographic printing mask or machine; Fig. 2 is a plan vie Fig.3 isa cross sectional view, the pressure back being shown in a raised position: Fig. 4 is an enlarged section taken transversely to that of Fig. 3; Fig. 5 is an elevation of the circuit control means: Fig. 3 illustrates the parts shown in Fig. in cross section; and Fig. 7 isa section of the mentioned parts taken at a right a ale to that of Fig. 6.

Referring now to the drawings by m:- merals, 1 designates a suitable frame, pref erably rectangular, provided with a correspondingly shaped opening 2 within which the exposure glass 3 is rran'ged, the top face of the glass being flushwith the top face of the frame.

A guide strip 4: isafiixed to the frame 1 ad acent one of its ends whereby to extend in parallelism therewith, said strip, in conunctlon with a retaining strip 5 and a guide pin 6 affording a means whereby the carrier is held against displacement and for sliding movement upon the top face of the frame. The strip 5 is aflixed to'the guide strip 4 and positioned or arranged to overlap the carrier 7. Pin 6 is ailixed to the frame and positioned to operate in a longitudinal slot 8 therefor formed in the carrier in adjacent proximity to the 'opposite longitudinal edge thereof from that engaged with the guide strip 4. The engagement between the slot terminals and the pin 6 will limit sliding movement of the carrier.

That the carrier 7 may be locked against movement subsequent to adjustment I pro-' vide a guide screw 9, the said screw being aflixed to the frame and, like the pin 6, positioned to operate in aslot 10 therefor ment. Slots 8 and 10 are preferablyalined as shown to advantage in Fig. 2.

An L-shaped or right-angled arm 12 is hingedly connected as at 13 to the carrier 7, one end of the angle arm being flush with 'formed in the carrier, the slot 10 likewise one end of the carrier, the opposite end however being situated at a point preferably equi-distant from the carrier ends, such arrangement positioning that portion of the arm extending at a right angle to the carrier in such relationto the exposure glass 3 and the top face of the framel as to be moved laterally or transversely thereof through adjustment of the carrier 7. Said arm 12 is normally held in yielding engagement with the mentioned glass and frame through the medium of a leaf spring 14 affixed to the carrier and tensioned to abut the arm at a point adjacent the free end.

To raise the arm out of engagement with afford a marginal space upon the photo-- the glass and frame and against tension of its associated spring, I provide a knob 15, said knob, as shown, being located in such relation to the spring as to in no way interfere therewith. Marginal strips 16 and 17 are fastened in any suitable manner to the under side of the arm 12, the strip 16 extending parallel with the carrier and the strip17 at a right angle thereto, each stripv slightly overlapping the edge of the arm to graph or print as will hereinafter more I fully appear.

What will be hereinafter referred to as a pressure-back is hingedly fastened asin- --dicated at 18 to move bodily with the carrier 7; The pressure-back in its preferred embodiment comprises hingedly connected sections 19 and 20, the former having con nection with the carrier as indicated at 13 and spaced therefrom, as shown, to overparatively large and is hingedly connected .25

ythe saidhandle and the pressure-back to lap that portion of the arm 12 supporting the'marginal strip 16. Section 20 is comas at21 to the smaller section 19. Marginal strips 16 and 1-7 not only provide for the formation of a marginal space upon the photograph as pointed out above, but, upon elevation of the arm, 12, serve as a means whereby the pressure-back as an entirety is raised or elevated therewith. It will be observed that the pressure back when lowered or horizontally flattened, directly engages with the, mentioned strips.

A handle 22 for the pressure-back is hing'edly connected as at 23 to a suitable block 24 in turn affixed to the carrier 7. Said handle 22 carries, in proximity to the hinge point 23, an abutment block 25, said abutment cooperating with a push button 26 depressible to control the electrical circuits involved. A coil spring 27 is arranged beneatli the handle 22 and affixed to the block 24, the terminals of the said spring being adapted to engage the under side of the mentioned handle to at all times exert an upward pressurethereon whereby to maintain -which .it'is connected in an elevated or raised position. -The mentioned connection is obtained through the medium ofa spring 28 afiixed at one end to the handle and at its opposite end to the section 20 of the pressure-back. Handle 22 is further equipped with arcuate leaf springs 29, the

' terminals of which are adapted to positively engage the top face of thepressureback to in this manner exert a uniform pressure thereon in the act of printing when handle 22 is lowered. A stop device 30 is fastened to the handle, the said stop being engageablmwith the top face of th' pressure back'to increase the pressure t ereon and'to limit movement of the handle.

To receive the wear and tear incident to one of the margins thereof.

eluding displacement of the strip long and continued use of the printing mask I provide a metallic strip 31which, as shown to advantage in Figs. 2 and 3, is fastened to thepressure back in such relation to the stop device 30 and the springs 29 as to con tact therewith whenthe handle is lowered. Slots 32 are formed in the strip 31, within which slots pins or screws 33 operate, the

latter being affixed to the smaller section 19 of'the pressure-back whereby to hold the strip against displacement yet permit of slight relative movement occasioned by reason of the hinged connection shown at 21.

Strip31 is of an inherent resilient nature and tensioned to normally maintain section 20- of the pressure-back at an acute angle to the section 19, such structure or arrangement Bidesignates a thin metallic strip in the nature of a straight edge positioned at one sidevof the opening 2 and in parallellsm with secured to the frame by any suitable means. An adjustable metallic strip 35 is secured to the top of the frame, said last mentioned strip being likewise in' the nature of a straight edge and movable bodily longi-' 'tudinally of the strip 3 Each strip is provided with marginal graduation marks as indicated in Fig. 1. The strip 35 is enlarged at one end as indicated at 36 and provided at its enlarged end with a longitudinal slot 37, said slot with a second slot- 38 extending parallel therewith aifor ing a guide means whereby the strip is held in place.- The\free end of the strip is arranged to underlap andoperate beneath the strip 34. Slot 38 is formed in a reinforcing strip 89 aiiixed to the strip 35 at its enlarged end, the reinforcing strip in turn supporting a knob 40 manipulatable to adjust the strip 35 longitudinally of the frame or toward and from the carrier 7. .A guide pin 41 is afiixed to the frame and operates within the slot 37 while a guide screw 42 is affixed to the frame and operates Rvithin the slot 38, the mentioned pin and screw together pre- A thumb screw 43 is mounted on the screw 42, said thumb screw being manipulatable in amanner common to the art whereby to releasably fasten the strip 35 against move ment when adjusted. At each side of the Said strip is frame 1 I dispose a retaining elementpthe element 44 at one side being fasten d,a't its oppositeends to the frame whi the element 44' at the opposite side isrfastened to the frame only at one end." Each element is Spaced from the frame and is utilizable as will. hereinafter appear.

The machine ormask here described and as suggested above is particularly useful where artificial light-is utilized as the illuminant. As a means wherebythe various lights (not shown) may be switched on or off as occasion demands,'I provide an automatic' circuit controller designated as an entirety by the numeral 45. The said controller in its preferred embodimeiit includes in addition to the abutment block 25 and the push-button 26 before described, a movable contact device or member v46, said member.

having connection, by means of a stem 47 with the button 26. The button 26 and the stem 47 operate in a suitable casing 48 therefor, the latter'being afiixed in any suitable manner within an opening 49 formed in the block 24. A spring 50 is located interiorly of thejcasin'g 48 to abut at one end the button 26 and at its opposite end the closed end of the casing, said spring normally main taining the contact member 46 in engagement with a resilient contact member 51, thelatter being arranged exteriorly of the block 24 and affixed to the terminal 52 in turn in-- sulated from the block 24. The engagement of the movable contact 46 with the contact 51 also maintains the latter in engagement with the terminal 53, the double engagement of th said member with the terminals- 52 and 53 closing a suitable electrical circuit whereby a colored light is obtained. During the process of printing, the handle 22 is depressed to move abutment25 into engagement with the button 26, such engagement causing the spring 50 to be compressed and the member 46 'moved out of block to which it is secured.

engagement with the contact 51. The lat-' ter being constructed of an inherently r esilient material, it is evident that ,the said.

contact will move out of engagement with theterminal 53, the contact '46 at the same time engaging the terminal 52 and a terminal 54 opposed thereto, the' mentioned engagement of the contact 46 with terminals 52 and 54 closing asecond circuit whereby to produce a white light of sufficient brilliancy to answer the demand made. thereon. The terminal 54 is also insulated from the- In operation, the film or negative and sensitized paper are adapted to be arranged in superimposed relation across the exposure opening 2 and upon the top face of the glass, the film or negative, if in the form of a roll, being first arranged to underlap the elements 44, said elements preventing the natural tendency of the film to curl-up or roll. Next, strip 35 is adjusted relatively to the strip 34, such adjustment determining the length of the photograph to be printed. In F1g. 1 the strip is set to printa photo graph four inches in length, Next, arm 12 is laterally adjusted relatively to the strip 35, such ad ustment determining the width of the photograph and, as indicated in the,

said Fig. 1, set to produce a picture four inches in width. The film or negative and the sensitized paper are heldin place by the arm 12 and by the tensionof the associated spring 14. While the negative is being arranged in the manner described, circuit closing device 45 willoperate automatically, through the-agency of the spring 50, to close the colored light circuit thereby producing a colored light. After the various:

adjustable parts have been set as previously mentioned and fastened against. displacement, pressure-back 19-20 .is lowered. or forced into engagement with the paper and film to press the latter firmly and uniformly against the exposure glass. The moment the pressure-back is forced-into a final position (horizontal) block 25 willhave engaged f the button in such amanner as to break the colored light circuit and close the white light circuitthereby creating a clear illuminant necessary to a printing operation. Handle 22 is then maintained in its lowered position until alphotograph shall have beencompletely printed. Spring 27 will elevate the handle immediately upon its release. It

is necessary to' raise or elevate the arm 12 through manipulation of knob 15 to remove the film after a printhas been taken therefrom. The print itself is positionedto engage the top surface of the strips 16 and 17.

From the foregoing,'taken-in 'connection with the accompanying drawings it is ap parent that photographs varying in size may be printed through adjustment of the arm'12 and the strip 35; that the strips16 and 17 will produce a marginal white space upon the completed photograph: and that the operation Ofthe-ci-rcuit closing device is absqlutely'automatic and such in its nature as to shift the light at the proper moment, it being understoodthat the light utilized in printing is to be arranged upon the opposite side of the frame from that upon which the mechanism compr sing my invention 15 arranged.

In reduction to practice, I have found that the form of my invention. illustrated i a retalnlng arm for the negative acted on wlth the frame.

5 rificing any of the advantages of my invention, as defined in the appended claims.

Having. thus-fully. described my inven- I -tion,-what Iclaim as new and desire to secure by Letters Patent, is v ,1. In a photographic printing machine, a

"frame-having an exposure opening formed therein, a carrier slidable transversely of the frame, means affixed to the carrier and 10:. -th ereof, means movable toward and from movable across the opening to vary the size flt'he carrier tovary the size of the opening,

dle for the pressure-back movable independently thereof.'

- tions, means adjustable toward and from a pressure-back movable with the carrier and into and out of engagement with the frame for the purpose specified, and a han- 2. In a photographic printing machine, a frame having an exposure opening formed 'therein,a carrier mounted for sliding move- 7 ment upon the frame, guide means for the .carrier affixed tothe frame, a pressure-back hingedly connected to the carrier and movablev into and out of engagement with the frame directly over thementioned opening,

hingedly connected to the carrier and movable transversely of the frameto vary the size of the opening-therein, means adjustable-toward and from the carrier. to vary' the size of the said opening, and a handle hingedly connected to the carrier and having a yielding connection with the pressureback, the handle being operable to move said pressure-back into and out of engagement .3. In a photographic printing machine, a frame having an exposure opening formed therein, a carrier slidable across the frame,

means to limit sliding movement of the carrier, guide means for the carrier, a block aflixed to the carrier, an arm having a hinge connection with the carrier, the arm being movable therewith and across the'ope'ning to vary the size thereof, said arm affording a filmretaining means, a pressure-back hingedly connected to the carrier, the said back comprising a pair of hingedly connected secthe carrier tovary the size of the mentioned opening, anoperating handle h1ngedly connected to the block, and a spring connection between the-.l andle and the pressure-back to move the latter into and out of engagement with the frame, said pressure-back being engageable with the film for the purpose specified.

4; In a photographic printing machine, the combination with a suitable frame having an exposure opening formed therein, of a pressure back comprising hingedly connected sections,,a resilient plate having a fixed connection with one of said sections and a loose connection with the other of said sections, .said plate being inherently resilient to normally maintain the section to which, it is fixedly connected at an angle to the other of the said sections, and means operable to move the sections and to hold said sections against relative movement.

5. In a photographic printing machine, a frame having an exposure opening formed therein, ,a carrier movable transversely of the frame, means mounted onthe carrier and movable across the opening to vary the size thereof, means movable toward and from the carrier to vary the size of the opening, and a pressure back movable with the carrier into and out of engagement with the frame for the purpose specified.

6."In a photographic printing machine,

the combination with a suitable frame having an exposure opening formed therein, of an adjustable carrier, a substantially L- shaped arm hingedly-connected thereto, the said arm being movable across the opening to vary the sizethereof, 'ineans'normally maintaining said arm in engagement with the frame to hold the film acted on against dis-' placement, means positioned at each side of the frame to engage the film for the purpose specified means adjustable toward and from the carrier to vary the size of the mentioned opening, and a pressure-back movable into and out of engagement with the frame. 4

7. In a photographic printing machine, a suitable frame having an exposure opening formed therein,.a carrier slidable across-the frame, means. movable with the carrier to vary the size of the opening, said last men tioned means being substantially L-shaped,

one arm of the-L-sl1apedmeans being arranged in parallelism with one 015 the opening sides, the other arm of the said L-shaped member being movable toward and from that side of the opening with which it is in parallelism,means movable toward and from the first mentioned arm to vary the size of the opening, said lastmentioned means extending in parallelism with the first mentioned arm, marginal strips affixed to the said L-shaped member, and a pres sure-back movable relatively'to the member into and out of a position closing said opening for the purpose specified.

8.1 In a photographic printing machine, a

carrier, a member movablewith the carrier; and adjustable across the frame to vary the a' pressure back Comprising connected sectlons, a res1hent plate havmg a fixed connection with one of said connection with the other of said Ysections,

5 and means operable to 111' to hold saldsections against relative move ment.

memms sections and a loose eye the sections and Witnesses:

Intestimohy vihereof I effix my signature in presence of two WltIlQSSQS;

THG'MAS H. mosw.

B. H, (Josey, 0mm ANED.

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