US954292A

US954292A - Photographic-printing apparatus.

Info

Publication number: US954292A
Application number: US41664308A
Authority: US
Inventors: William C Huebner
Original assignee: Individual
Current assignee: Individual
Priority date: 1908-02-19
Filing date: 1908-02-19
Publication date: 1910-04-05
Anticipated expiration: 1927-04-05

Description

W. C. HUEBNER.

Patented Apr. 5,1910.

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APPLICATION YILED PEB.19,908.

Patented Apr. 5, 1910.

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PHOTOGRAPHE PRINTING APPARATUS. APPLIUATIOH PILSDIEB. 1s, loos.

954,292. Patented Apr. 5,1910

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PHOTOGRAPHIC PRINTING APPARATUS.

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954,292. Patented Apr. v5,A 1910.

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Athe stationar The central fr a `y econsists of upri ht end posts 20 21 and logilgitidinal top and

ottom pieces

22 and 2 3"""'Tlie side frame vGr, in which the light chamber A` is mounted, coni- `prises upright posts 24 which are secured at their inturned upper ends to the longitudinal top ieee 2-2and connected at the top by a horizontal ieee 25, while the lower ends are connected horizontal piece 26. The posts 24 are provided in line with the axis of the light box with a horizontal bowshaped bridge or cross piece 27 which is braced by legs 28 and suitableconnecting pieces. The upper and lower ends of the osts 24 are connected with the up er and ower ends of the posts of the centra frame by oblique braces 29.

The side frame H, in which the back support is mounted, is of similar construction and comprises posts 30 connected at the to and bottom with the central frame, a horizontal bottom piece 31,l an intermediate horizontal bow-sha ed bridge or cross piece 32,

33 and oblique braces 34.

le Ehe stationary central frame Fris provided with a' rectangular carrying frame I which carries the holding devices for Vthe plate or stone and which is vertically adjustable in the stationary frame, the posts 20 and 21 of the latter beingprovided with upright grooves and the carrying frame with tongues 35 Fig. 3, which slide therein. The carrying rame is moved vertically in the stationary frame by upright screws 36 which are journaled in bearings 37 '38 on the stationary frame and engage in threaded lugs 39 on the carrying frame. These screws are simultaneously rotated by a-hoi'izontal shaft 40 connected with the u right screws by bevel wheels 41, Fi .1,an 3. The'posit-ion of the carrying ame' in the stationar frame can be ascertained by pointers 42 a justably secured'to an u righ't scale 43 on frame an a ointer 44 on the carrying rame, Figs. 1 an 3.

The holding devices attached to the carrying frame for securing thesensitized plate therein may be of any suitable construction and, as shown, comprise top and bottom holdin means which are simultaneously'adjustab e in a horizontal or lon itudinal direction between the top -and ottoni bars 45 46 of the"carrying frame. Y

The top holding, means, Figs. 1 2, 4 and 5, compriseva longityydinal holding bar 47 provided on its upper side with Va dovetail tongue 48 slidably arranged in a longitudinal roove formed between the .top member 45 0% the carrying' frame and a side late 49.

VThe bar 47 is provided on its un er side with a web 50 against which the upper portion of the sensitized plate C is held by a clamping plate 51 which is drawn4 against the plate C and toward the w`eb 50 by a wedge plate 52 having on its face side slotted bevel Vwheel 81 havin wedges `or inclines `yvvf'liic-.h engage nuts 54 on attachedito the .clamping plate. By m wg'the wedgeplate lengthwise in one orthe other direction the clamping plate movement` is eected b a lever 56 pivoted is tightened or release This longitudinal to the top bar 47 and connected by a link 57 `with the wedge' plate. The top bar 47 is provided with a threadedl-ug 58 with which enga es a horizcntaliadjusting screw 59 journal n bearin 60 on the upperportion of the carr ing rame.

The bottom hol ing means,` Figs. 1, 2,3, 4, 6 and 10,'comp'rise a longitudinal holding bar 56 'rovided on its under sidewith a rib 67 slidably arranged in a longitudinal groove in the upper side of the bottom bar 46.01? the carrying frame and provided on vitsupper side with a web 68 against which the lower ortion of the sensitized plate C is pressed y a clamping bar 69 provided with bolts 70 engaged by a wedge bar 71 connected with a `shifting lever, not shown, these parts being constructe like the corres ondin parts of the top hol ing means. T ehol ingbar 66 is provided with a threaded lug 74 in which engages a horizontal adjustingserew 75 `journaled in bearings 76 on the carrying frame.

The horizontal adjusting screws 59 and 75V are simultaneously rotated by means of two upright shafts 77 whiehare jouriialed in bearings 78 on the central Jframe and.` `pass throu h `bearings 79 on the sides `of the carrying rameI. The upper screw 59 is geared at each end with the shaft 77 by a evel wheel 80 secured to the screw and a its hub held in the upper bearing 79, -t e hub containing a feather or'key which .engages in a groove in the shaft whereby a Idriving engagement of the sha t withthe wheel; 81 is main' tained as the lcarrying frame is raised or lowered `in the main frame. screw 75 is geared at each end in a similar manner with the shaft 77 by gear wheels 82 83. The upright shafts 77 are geared at their lower ends by wheels 84 with -ahan'd shaft 85 by which they are actuated. The horizontal .position of the holdin bars in the carrying frame I eanbe rea ily ascertained by a pointer 864 on the-upper holding bar, a scale 87 on 'the top member of the main frame, and pointers 88 adjustably se- -cured tothe scale, Fig. 2.

`The 4lightchamber A ismovable to and from the central frame F'on horizontal"` guides 90, Figs. 1, 3 and 4, formedv on the posts 24 of the side frame G at right angles electric illuminating devices 93, Figs. 3 and and operatirg The lower a 4, and has a transparent faoe plate 94 to which the transparent negative or positive printing plate E is applied. The light chamber is adjusted toward and from the sensitized sprfaee by a screw 95, Figs. 1, 3 and 1, which is connected with a spider 9G on the outer or rear side lof the light chainber and works in anut or threaded sleereV 9T arranged in the cross piece 27 of the side frame G, this screw being V.provided with a hand wheel 98.

The transparent printing fplate E may be secured to the face plate 94 of the light. chamber. by any7 suitable means, preferably, as shown in Figs. 1, 25, L1. and 8, by transverse beveled bars 101 which overlap the beveled upper and lower of the printing plate. These bars are adjustably connected with two vertical screws 102 for tightening the bars against the plate.y the upper bar being secured to sleeves 103 which can be raised or lowered on the upper, unthrcaded portions of the screws. while the lower bar is secured to threaded sleeves 101 in which the screws work. Both screws are turned simultaneoustiT by a horizontal shaft 105 which is geared with the screws bylievel wheels 106. The screws and their connecting' shaft are journaled in brackets 107 108 secured to a rectanlgfulal` frame K which is somewhat larger than the light chamber and is adjustably secured thereto in such manner that this frame can be given a partial. rotation with reference to 'the chamber. thereby giving the printing plate E a` partial rotation on the face plate .11 for registering the printing,r plate on the face plate.

The rotary connection of the frame K with the light chamber may be ablished.y as shown. by arms 110 111 secured to the. chamber and screws 112 which engage in curved slots 113 in the frame. The uppei` portion of the latter may be provided with a gear segment 114 with which engages an adpistingj worm 115 journaled on the :grin 110. The upper and lower portions of the face plate are preferably covered by opaque curtains 110. i

For securing the printing plate lil to the transparent face plate the sleeves 10S of the yupper bar 100 are loosened on the screws.

the lower bar 101 is adjusted to the proper position by means of the screws.y the plate E placed on the lower bar, and the upper bar placed on the plate and secured to the screws. The lower bar 101 may be brat-ed at the middle h v an upright slotted bar 11T. Figs. 4 and 8. which is secured to a sleeve 1.18 and the cross shaft 105 by a screw 110. rlhe printing plate E may be held against lateral displacement by side rests secured to sleeves 121 and the screws 10Q. YWhen the srrews are to be rotated the lower brace 117 and the side rests are released.

The back support or pressure device B is mounted in the side frame H in the same manner in which the light chamber is mounted in the side frame Gr and stands opposite the light chamber, so that thelatter presses the printing plate against the sensitized surface of the plate or stone and the hack snpport presses against the rear side of the plate or stone. The upright posts 30 of the side frame H are provided with horizontal guides .130 arranged at right angles to the plane of the main frame, Figs. 2, 3 and 4. The side pieces 131 of the frame 132 of the back support are provided with lateral ribs or lugs 1253 which slide in the grooves of the guides. The hack support is adjusted toward and from the back of the plate or stone by a screw 134. Figs. 2, 3 and 4, which is connected with a spider 135 on the outer side of the back support and works in a thread in the cross piece 3Q of the side frame H. this screw being provided with a hand wheel 130.

It is ,sometimes desirable to adjust the light chamber from the same side of the apiaratus from which the back support is ad Justed. Figs. 2. 3 ande represent a couvenient mechanism for that purpose, coinprising a horizontal hand shaft 110. journaled in the cross piece 3Q. an oblique shaft 1st-1. a longitudinal shaft 142, a transverse horizontal shaft 113, an oblique shaft lll and connecting pairs of gear wheels 115, 14H. 147. 11S. The oblique shaft 144 connected at its upper end b v a wheel 1li) with a wheel on the threaded sleeve 9T in which the adjusting screw 05 of the light chamber wen-lts. `dlhen this mechanism is not einployed the screw 95 can work directl)v in the cross piece 9T. i

.ln order to produce an intimate contact of the sensitized surface with the printing plaie over tlnl entire surface ofthe. lattenthe pressure plate 1715 of the back support is preferably so mounted in the frame 132 thereof that pressure can be applied separateliv at different portions of the pressure plate. For that purpose the frame 11; may he provided with shafts 150 carryingY cams or eerentries [5T by which pressure can be applied to the plate Slightly yielding; devices roniprisiimr a spring;r 15S and a liolt` 100 are iuefi-rably interposed between theeeceutriws and the plate. Figs. Il. T and El The main pressure plate is prefeial'illi' provided with a supplemental pressure plate 100, Fig. El. havingr a evieldingir facilite 1111 and bonnet-ted with the main plate bv studs 102 entering openings in the main plate and secured therein by transverse screws loll.

.A lithographie stone l). Figs. 1l and lil. may be secured to thelower holding bar l'it by means of a base 101') which is secured io the bnr after removing' thtl web (3H. Vig'. ti. The base 105 is provided on its upper side with a dove-tail groove 16u which rei-eirrs a l lltl ll-l heads provided with screws 170 bearingl against the ends of the stone.

ln Figs. 13 and 14 the sensitized plate C is represented as being secured in a frame '171 which is horizontally adjustable by the screws 5*.) and T5 in the vertically'adjustable carrying frame l and which is provided yat its to i and bottom with holding devices 172 173 flor the plate. The lower holding devices 173 may bc verticali movable in the frame 171 by levers 174 or stretching the plate. l

ln adjusting the apparatus for producing a` print upon a sensitized surface the light chamber is adjusted so as to bring thetransparent printing plate in close Contact With thc sensitized surface and the back support is adjusted to bear against the rear side of the plate or stone. lfA necessary, the supplemental pressure appliances, consisting of the ect-entries or cams, are resorted to Where adilitional pressure is needed in order to roduce an intimate and uniform contact o the printing plate with tbe sensitized surface.

The plate mounted in the adjustable carrying frame can be readily adjusted, if necessary, so as to bring that part of the sensitized surface opposite the light chamber upon which the photographic print is to be made. lf it desired to produce a plu i'alit \r ot' like prints upon the sensitized surface, this is readily done by shifting the` carrier frame containing the plate or the holding devices of the plate, or both, after every exposure so as to bring different portions of the sensitized surface successively opposite the light chamber and back support` If it. is desired to Ji'ovide several lates or stones with irints or printing in (litfercnt colors, the plates or stones are successively exposed and the correct position of each plate or .stone for each exposure is readily produced by the aid of the scales and pointers',"tliereby producing the prints upon each plate or stone in correct register.

l do not wish to claim anything in this application which is claimed in my pendin applications Serial No. 358,251', tiled Feb. 19. 1907, and Serial No. 408,307, tiled Dec. 27, 1907. A

l claim as my invention:

i l. In a photographic printing apparatus, the combination of a supporting frame having means for holding a sensitized part, a light chamber adapted to carry a photographic printing plate, rectilinear guiding means on said frame on which said light chamber isanovablc to and from the printing position. and means for moving the light chamber on said guiding means to the printing position and pressing the printing plate against the sensitized surface, substantially as Set forth. i i

2. In a photographic printing apparatus, the combination of a supporting frame having means for holding a sensitized part, a

light, chamber ada ted to carry a photo-v graphic printing ate, rectilinear guiding means on which tEe light chamber is" movable toward and from the sensitized surface for pressing the printing plate squarely against said surface, or removing the plate therefrom, a back support arranged opposite the rear side of the sensitized part, and means for moving the back snp ort toward and from said part, substantially' Vas set forth.

In a photographic printing apparatus, the combination of a stationary frame having means for holding a print-receiving part provided with e sensitized surface, a light chamber for a transparent printing plate mounted in said frame opposite the sensitized surface and provided with means for holding a photographic printing plate, a

site the rear side of said part, and means for adjusting said light chamber and back` support separate] toward and from said sensitized part, substantiall as set forth.

4. In a photographic printing apparatus, the combination of a stationary frame having means for holding a print-receiving art which is provided with a sensitized suxfiice, a light chamber adapted to carry a transparentprinting plate and mounted opposite the sensitized surface, guiding means on which said light chamber is movable toward and from said surface, a screw `for adjusting said chamber and printing plate toward and from said surface, and a back support mounted opposite the rear side of said sensitized part and provided with a screw for adjusting the back support toward and from the saine, substantiall as set forth.

5. ln a photographic printing apparatus, the combination of a stationary frame having means for holding a print-receivin part provided with a sensitized surface an having guides arranged in planes at right angles to said surface, a light chamber adapted to carry a transparent printing plate and mounted on said guides opposite said surface, means for adjusting said chamber carrying said printing plate on said guides and holding said chamber in its adjusted position. a back support mounted on said guides opposite the rear side of said part, and means for adjusting said back supporton said guides and holding said support in its adjusted position, substantially as set forth.

In a-pliotogra-phic printing apparatus, the combination of a supporting frame. having means for holding a sensitized part, means for adjusting said sensitized part in a plane parallel with the sensitized surface, a light chamber adapted to carry a photographic printing plate, and rectilinear guiding means on which the light chamber is movable toward andcfrom the sensitized surface for pressing the printing plate securely against said surface or removing the plate therefrom, substantially as set: forth.

7. In a photographic printing apparatus, the combination of a supporting frame having means for holding a sensitized part, means for adjusting said sensitized part in a plane parallel With the sensitized surface, a light chamber adapted to carry a photograuhic printing late, means for adjusting sai chamber an plate toward and from the sensitized surface, a back support, andV means for adjusting said support toward and from the rear side of the sensitized part, substantially as set forth.

8. In a photogra hic printing apparatus, the combination of) a stationary frame, a carrying frame having holding means for a print-receiving part provided with a sensitized surface, said carrying frame being adjustable in said stationary frame parallel with said surface, a light chamber for a transparent printing .plate fmounted in said frame opposite said surface, a back support mounted in said frame opposite the rear side of said part, and means for establishing a close contact of the printing plate with the sensitized surface, substantially as set forth.

Correctionsl in Letters Patent No. 954,292.

9. In a photographic printing apparatus, the combination of a stationary frame, a li ht chamber for a photographic printing pate and a back support mounted in said rame and facing each other, a carrying frame adapted to hold a print-receiving part provided with a sensitized surface between said light chamber and back support, said carrying frame being adjustable in said sta tionary frame transversely to the axis of said light chamber, and holding means for said part adjustable in said carryin frame at right ang es to the direction in W ich the carrying frame is adjustable in the stationary frame, substantiall as set forth.

10. In a photograp ic printing appara- [sean] the record of the case in the Patent Otliee.

tus, the combination of a stationary frame, a carrying frame adapted to hold a print-receiving part provided With a sensitized snrface and adjustable in said stationary frame parallel with said surface, adjusting screws journaled in said stationary frame and engaging said carrying framegholding' means for said part adjustable in said carrying frame at right angles to the direction in which the latter is adjustable, adjusting screws journaled on said carrying frame and engaging said holding means, and a ligln chamber and a back support arranged on opposite sides of said carrying frame and facing each other, substantially as set forth.

1i. In a photographic printing apparatus, the combination of a stationary frame provided With holding means for a print-rceeiving part having a sensitized surface,`a li ht chamber for a transparent printing plate arranged opposite said surface and adjustable toward and from the same, a back support arranged opposite the rear side of said part and adjustable toward and from the saine, means for adjusting said light chamber and back support independently,

and mechanism for adjusting both the light chamber and the back sup rt from the same side of the stationary rame, substantiaily as set forth.

l2.- In a photographic printing apparatus, the combination of a stationary frame provided with holding means for a print-receiving part having a sensitized surface, a light chamber arranged opposite the sensitized surface and having a transparent face plate, a transparent printing plate arranged on said face plate, transverse attaching bars engaging-the upper and lower sides of said printing plate, and a brace enga lng the lower attaching bar between the enas thereof, substantially as set iforth.

Witness my hand, nthis 15th day of February, 1908.

WILLIAM C. HUEBNER.

Witnesses EDWARD WILHELM, C. 1?.L HonNnEoK.

It hereby certitiedthat in Letters Patent No. 954,29.)granted April 5. i910. upon the application'of William C. Huebner, of Buifalo, New York, for an improvement in Photographic-Printing Apparatus, errors appear in the printed specification requiring correction as followst Page 2,

lines

70 and 71 should be transposed: page 5, line 6, the Word securely" should read square/1y; and that the said Letters Patent should be read With these corrections therein thatlthe same may conform to Signed'and sealed this 26th-day of April, A. D., 19411).

C. BILLINGS.

Acting C'wmnssz'oner of Patents.

plane parallel with the sensitized surface, a light chamber adapted to carry a photographic printing plate, and rectilinear guiding means on which the light chamber is movable toward andcfrom the sensitized surface for pressing the printing plate securely against said surface or removing the plate therefrom, substantially as set: forth.