Патент USA US2411694код для вставки
Nov. 26, 1946. R. PLACE 2,411,694 CONTINUOUS CAMERA OR PRINTER Filed July 17, 1942 2 Sheets-Sheet 1 0 WYW Nov. 26, 1946. 2,411,694 R. PLACE CONTINUOUS CAMERA OR PRINTER Filed July 17, 1942 t’ 2 Sheets-Sheet 2 40 (‘lawn/Mom ' gl ‘\ jPaierlf’lace Patented Nov. 2c, 1946 2,411,694 UNITED STATES PATENT OFFICE 2,411,694 CONTINUOUS CAMERA OB PRINTER Robert Place, _Waltham. Mesa, asslgnor to Graphic Micro?lm Service. Inc., Waltham, Mass, a corporation of Massachusetts Application July 17, 1942, Serial No. 451,329 1 2 Claims. (01. 88-24) This invention relates to improvements in cameras or printers and. may conveniently'be ~ embodied in a combined continuous camera and printer. The principles of the invention are par ticularly applicable to continuously operated micro?lm cameras and/or printers. 2 tographlo or printing ?eld it, the said photo graphic ?eld being de?ned by a slotted shield 20 positioned inside the casing to. The camera or printer i2 is positioned slightly off-center from the ?eld l8 for a reason hereinafter ap parent. As best shown in Fig. 4, the upper roll The invention has for its principal objects the ers it are idlers and the lower rollers 16 are multiple magni?cation with a single lens and driven. A ?xed plate or floor is provided at this ?xed camera height together with synchroniza portion of the casing through which the lower tion of lens reduction to ?lm movement whereby 10 rollers i6 project to engage the sheet feed ma manuscripts of various sizes may be photo terial. graphed or enlargements produced at various Disposed inside the shield 20 are light sources reduction ratios. 22 for the purpose of illuminating manuscripts The invention contemplates in general the positioned in the photographic ?eld when the adjustment of lens ratio with a given gear ‘ratio 15 device is positioned in the photographic ?eld. and, as such, avoids the di?icuities heretofore At the exit end of the photographic ?eld and encountered in attempts to provide a gear ratio beyond the series of rollers it a curved guide in synchronism with a given lens ratio. member 24 is positioned to receive sheets from Among other objects of the invention is to the endmost rollers i6 and guide the same into enable the use oi a long focal length lens at 20 a suitable hopper indicated in dotted lines at 26. relatively close range. The use of a long range The camera or printer indicated at i2 is pro lens is of particular advantage in micro?lming vided with conventional ?lm reels 28, ?lm guides . in view of its greater area of high resolving 3% for positioning the film in front of a suitable power. . condenser lens system 32 behind which a light In the particular embodiment of the inven~ 25 source 35 is provided for purposes of printing. tion herein described and illustrated a re?ector It will be understood that the light sources 22 system is interposed between the camera and and 3B operate alternatively according to whether manuscript feed bed in the case of photograph the device is used for photographing or printing. ing and between the printer and feed bed for Coming now to the important feature of the the sensitized paper in the case of printing. 30 invention, a front surfaced mirror 36 is support In the accompanying drawings: ed at a ?xed position inside the casing id in po Figure 1 is a side elevational view partly sition to intercept the line of projection between broken away to show the internal working the sheet material in the ?eld i8 and the film mechanism and illustrating the image re?ecting in the camera or printer i2. From the mirror mirrors in one selected position; 35 36, in the case of printing, the line of projection Figs. 2 and 3 are diagrammatic views looking is diverted to a front surfaced mirror iii! posi~ at right angles to Fig. 1 and showing the re tioned in an upper part of the casing, and from ?eoting mirrors in other di?erent adjusted posi tions; and the mirror iii the projection line is directed onto its entirety by the numeral i2. It will be un plementary action in various relative positions. the ?eld area of the bed. The mirror at is mov~ Fig. 4 is a perspective view of the device of 40 ably supported in the casing lit by means of a Fig.1 partly broken away to show the feed bed bracket 42 carrying an opposed gear 63 and roll drive means and means for operating the camera ers 4d engaging opposite sides of a rack 46 which or- printer at selective speeds. is ?xedly supported in the casing by bracket 48. Referring more particularly to the drawings Crank 50 keyed to the gear :33 may be rotated wherein likev numerals refer to like parts, the de 45 in order- to vertically position the mirror 40 vice of Fig. 1 includes a housing represented at along the length of the rack 46. Either or both it) supporting at its upper portion a combina mirrors 3B and iii are suitably supported for tion continuous camera and printer indicated in slight pivotal movement to maintain their com derstood, however, that either a camera or a 50 Also it is understood that the mirror 36 may be printer may be employed instead of the com blned aparatus illustrated. The lower portion of the housing i0 is provided with a mouth It mounted for vertical movement in addition to or in lieu of the mirror 40. whlchleads to a series of rollers it for the pur While movable mirror 40 is capable of minute adjustment relative to the complementary mir pose ot conveying sheet material across the pho 55 ror 38, in ordinary operation the mirror 40 is amass 3 - . " . . .4 A; r shifted to one of a plurality of predetermined positions to coordinate the lens reduction ratio with the given gear ratio or operating speed ‘of the camera. For example, the mirror as shown 1. In a device or the character described. ices ing having a camera mounted at one end thereof, said camera including: a lens, a ?lm gate, and positioned at the top of rack 48 in Fig. 1 to give the maximum throw to complementary mirror 36 is arranged for highest reduction ratio. A vertically toward the other end of said casing. a selected intermediate position of the mirror 6d a means for advancing the ?lm through said gate; the optical axis of said lens extending downward housing within said casing positioned at the other end thereof and including document ad is represented diagrammatically in Fig. 2 to pro vancing means, a source of illumination for vide an intermediate reduction ratio, and in Fig. 10 throwing an illuminated area on said advancing 2 a mirror 40 is positioned at the calibrated point means to be successively traversed by documents A indicated intermediate the length of rack 48 advanced therethrough, a slot formed in said in Fig. 1. Fig. 3 is a diagrammatic illustration housing in alignment with said illuminated area. of the mirror 156 arranged for minimum reduc the axis of said illuminated area framed by said tion ratio and in this instance mirror Mi is pre 15 slot extending vertically within said casing to sumed to be positioned at the calibration indi ward said ?rst mentioned end and spaced apart cated at B on the rack 46 in Fig. 1. from the axis of said lens, inclined mirror means Since the degree of magni?cation of the image cutting the axis of said lens and supported near said housing, a support in said casing adjacent as a?ected by the mirrors @6 and to must be compensated for in the camera or printer drive, 20 to the axis of said illuminated area, and a sec, ond inclined mirror means movably carried on a variable drive of any suitable character such as illustrated in Fig. 4 is provided. Herein a said support and cutting the axis or said illumi-iv drive chain 68 is trained over a driven sprocket 62 for advancing the ?lm within the camera or nated area, at least one of said mirror means selectively trained over reduction gears 64, 66 or (58 driven by a motor M. In a convenient manner means with one another and with both said axes as said movable mirror means is moved to vari of manipulation an idler sprocket It is adjust ably positioned adjacent the chain 60 in order to take up the tension according to the driving gear 80 selected. The motor M also drives the rollers it through the sprocket 8B keyed to shaft 82 and a take-o?' from the shaft 82 drives the sprocket. 84 for rotating the reduction gears 66, 66 and 88. It will be apparent that with the mirror posi 35 tion as shown in Fig. 1 for maximum reduction, the smallest diameter drive sprocket M will be employed; that for the intermediate position of ous relative positions on said’support, whereby a continuous light path is formed between said being supported for slight pivotal movement to printer i2 and at its other end is adapted to be 25 maintain complementary action of said mirror the mirrors as shown in Fig. 2 which provides in illuminated area and said lens for all adjust ments of said mirror means. 2. In a device of the character described, 9. cas ing having a camera mounted at one end there of, said camera including; a lens, a ?lm gate and means for advancing the ?lm through said gate; the optical axis of said lens extending toward the other end of said casing, a housing within said casing positioned at said other .end and in cluding document advancing means, a source of termediate ratio reduction, the drive sprocket 86 40 illumination for throwing an illuminated area on said last advancing means to be successively will be used; and that for the mirror position traversed by documents advanced therethrough, indicated in Fig. 3 which provides minimum ratio a slot formed’ in said housing in alignment with reduction, the large drive sprocket 58 will be uti and framing said illuminated area; the axis of lized. The lens of the camera or printer it may said framed illuminated area extending longituof course be adjusted to suit the reduction ratio dinally within said casing and spaced apart from. selected. - In the device illustrated the camera or printer the axis or said lens, inclined mirror means ?xedly supported in said casing near said hous i2 and the sheet material conveying means rep ing and cutting the axis of said lens, a support; resented by the rollers it may be synchronously driven in any suitable manner, a convenient de 50 ing boss on the wall of said casing adjacent to vice therefor being disclosed in my copending the axis of said framed illuminated area, rack application Serial No. 358,452, ?led September means secured to said support, a mirror support, movably carried on said rack and including a 26, 1940. pinion, the teeth of which engage the teeth on It is believed that ordinary operation of the device will be readily apparent from the above said rack, a second inclined mirror means mount ed on said mirror support and cutting said sec- ' description. It is, of course, desirable to photo ond axis, the inclination of said mirrors being \ graph at the lowest possible reduction, so that the lowest ratio as exhibited by the mirror posi such that a continuous path is formed between said slot and said ?lm gate, crank means for ro tion of Fig. 3 will be employed for index cards, bank checks and materials of comparable size 60 tating said pinion and adjusting said last mirror means along said rack and consequently chang in contrast with the highest ratio reduction as shown by the mirror position in Fig. 1 which is ing the length of said path, at least one or said particularly adapted for large size blueprints, and mirror means being pivotally mounted on its sup engineering drawings, the intermediate ratio be port and adapted to be adjusted to maintain. ing best adapted for material such as newspaper 65 said continuous path for various adjustments of sheets, smaller blueprints, correspondence ?les, said second mentioned mirror means, and means etc. It is understood that the speci?c device herein illustrated and described is exemplary only of the principles of the invention as de?ned in the fol 70 for changing the relation' of the movement of the ?lm in said camera with respect to the move-i ment of said documents through said advancing.‘ means in accordance with the length of said path. lowing claims. What I claim is: ROBERT PLACE.