US3308717A - Enlarging and printing machine - Google Patents

Description

1967 YOSHIRC) OKISHIMAY ETAL I ENLARGING AND PRINTING MACHINE Filed D80 16, 1964 5 Sheets-Sheet 1 March 14, 1967 YOSHIRO OKISHIMA ETAL 3,308, 7

ENLARGING AND PRINTING MACHINE Filed Dec. 16, 1964 I 5 Sheets-Sheet 2 FIG. 3

F 60 4 s K I so a w 3' V y .w I 45 r 25 .J 27 36 6: 5s 64 'l 3,, so

4o 35 42 56 6| 34 so March 14, 1967 YOSHIRO OKISHIMAETAL 3,308,717

ENLARGING AND PRINTING MACHINE Filed. Dec. 16, 1964 5 Sheets-$heet 20 PEG. 5

March 1967 YOSHIRO OKISHIMA ETAL 3,308,717

7 ENLARGING AND PRINTING MACHINE I Filed Dec. 1 1964 5 Sheets-Sheet 4 March 14, 1967 YOSHIRO OKISHIMA ETAL 7 ENLARGING AND PRINTING MACHINE Filed Dec; 16, 1964 5 Sheets-Sheet 5 FIG. 9

n. ,l F

I4 SC I 78] IO 1 l 4 l United States Patent 1 Claim. (a. 8824) This invention relates to an enlarging and printing machine for photographing apparatus, additionally provided with a developing mechanism of a quick stabilizing type.

One object of the present invention is to provide an enlarging and printing machinefor photography wherein cutting sensitized paper, printing and developing are automatically effected thereon by an appropriate controlled amount of exposure.

The other object of the present invention is to provide an enlarging and printing machine capable of printing on various negative films of different sizes, for instance, Leica-size films, half-size films and 16 mm. size films, which can be fed in either the same or perpendicular direction as sensitized papers.

In accordance with the present invention, an enlarging and printing machine is provided with an appropriate number of principal exposure buttons for controlling main exposure time, an appropriate number of auxiliary exposure push buttons for regulating the lighting time of an auxiliary exposure lamp to impart a flat light having not yet passed through films for adjusting contrast of images by a1- tering t'he gradation of sensitized papers, a main switch necessary for lighting the main exposure lamp in order to control the focussing, a starting switch for starting the mechanism upon finishing the control of focussing, and with switches interlocking with various mechanisms for preparation, such as feeding the sensitized paper to a developing bath after said exposure being performed, simultaneously upon the beginning of operation of such mechanism, for cutting the sensitized paper, and holding such paper at an appropriate position.

By means of gears, all the mechanisms are interlocked with a motor operated by a starting switch. In conjunction with driving of said gear means, the motor is stopped by interlocking with each switch to perform the exposure. Simultaneously with completion of said exposure, the motor is rotated again for feeding sensitized paper, cutting is in predetermined sizes and simultaneously feeding the printed sensitized paper to the developing bath. In addition, a mirror is arranged in such a way that it may be reversibly turned by interlocking with the gear mechanism on an optical path for exposure of the sensitized paper. When the focussing is regulated, main exposure rays of light having penetrated through films are reflected on a focusing screen, which are then reversed and the printed paper is reversed during the exposure. The external rays of light, that is, the rays of light passing through the focusing screen are cut off.

From the foregoing description, the characteristic features of the present invention lie obviously in that a main light source lamp capable of being lit in any desired period of time by selecting switches and an auxiliary light exposure lamp imparting light to sensitized paper, which has not yet penetrated through negative films, are provided, and cutter cams as well as mirror cams are mounted together with an intermittent operating gear Wheel on a driving shaft, said intermittent operating gear wheel driving a feeding roller to feed a predetermined weight of sensitized paper, said cutter earns being related with cutters for-cutting the sensitized paper in predetermined sizes, said mirror cams reversing the mirror in an optical passage camera and simultaneously being related with a 3,308,717 Patented Mar. 14, 1967 "ice switch for an electrical source of said each driving member through a mirror driving member. Thus, according to the present invention, electric circuits and elements provided in the apparatus are controlled by the provision of all types of cams and intermittent operating members on the driving shaft, and an automatic enlargement and printing can be effected by simple operation of switches and all members are accommodated in a camera. Therefore, printing can be advantageously effected even in the daylight.

It is another characteristic feature of the present invention that the head portion is arranged above the printing apparatus with a rotary central axial line of rotary head appropriately spaced from two lines, one is a central sensitized paper feeding line solidly intersecting at right angle with a central axial line of a projecting lens and the other is a central line perpendicular to said sensitized paper feeding central line, thereby assuring always in the present invention to hold constant the longitudinal direction of various types of films such as, Leica size, half size or 16 mm. size or other film sizes. Accordingly, in a very simple operation both enlarging and printing operations can be advantageously accomplished in the present invention.

In the following, the present invention will be described in detail in reference to an embodiment illustrated in the accompanying drawings, though of course the present invention is not thereby limited by any means and can be modified within the scope and spirit of this invention, and in the drawings similar parts are represented by similar indicating symbols, in which FIG. 1 represents an outside front view of an enlarging and printing machine according to the present invention;

FIG. 2 is an enlarged front view of FIG. 1 with parts removed and parts in section;

FIG. 3 represents a side elevation of FIG. 2 with parts in longitudinal section along the main exposure optical axis;

FIG. 4 represents an enlarged front View of the gear and all operational systems in fragments;

FIG. 5 represents an enlarged front view of a gear system and sensitized paperfeeding mechanism;

FIG. 6 represents an enlarged front view of the mirror reversing mechanism;

FIG. 7 represents a cross sectional plan view of the head portion of said apparatus;

FIG. 8 represents a longitudinal sectional vieW on VIIIVIII line of FIG. 7; and

FIG. 9 represents also a longitudinal sectional view on IXIX line of FIG. 7.

Referring to FIG. 1 representing the outside front view of the enlarging and printing machine according to the present invention, by 1 is meant a main body; 2 a head portion; 3 a developing portion; 4 a focusing screen; 5 a push button for controlling exposure time; 6 an auxiliary push button for controlling exposure time; 7 a main switch; 8 a starting switch; 9 a film carrier; and 10 a focusing ring respectively. The machine body generally comprises: the main body 1 consisting of a camera which includes each operational mechanism and rolled sensitized paper; the head portion 2 shown in FIG. 3 including main exposure lamp 11 and a condenser 13; and the developing device 3 having a developing bath 72 and a stabilizing b-ath 73. The front of the main body 1 includes the focusing screen 4, a suitable number of main exposure time-controlling push buttons 5, auxiliary exposure time controlling push buttons 6, the main switch 7 of an electric circuit for lighting the main light source lamp, and the starting switch 8 to start all the driving mechanisms. Between the head portion 2 and a portion of the main body 1 are provided the film carrier 9 and a substituting lens 18 (see FIG. 2) being substituted ac- 3 cording to the kinds of films, such as for instance, 35 mm., 16 mm., half sizes, etc. I

As is shown in FIG. 3 the head portion 2 is provided with the main light source lamp 11, reflecting mirror 12, condensers 13 and 13' and the reflecting mirror 14. Below the main light source lamp 11, a cooling fan 16 is mounted to be driven by means of a fanmotor 15 in the main body 1; the cooling fan begins to revolve simuL taneously upon the main switch 7 being turned on and continues to run until such switch is turned off. The head portion 2 is adapted to turn horizontally on the main body 1 and a click stop 17 is provided at the root 2' of the head portion 2 to latch the head portion 2 to the main body 1. Substituting lens 18 is attached to the upper portion of main body 1 and is adjusted by the focusing ring 10 relative to the film carrier 9 which is disposed between the substituting lens and the under surface of condenser 13'. The reflecting mirror 14 is appropriately placed in the head portion 2 so that the optical axis of substituting lens 18 coincides with the optical axis of the condenser 13 for the main light source lamp 11. An auxiliary exposure light lamp 19 is mounted in the main body 1 on the side of lens 18 and is controlled by an auxiliary exposure time-controlling push-button 6.

The main body 1 comprises mainly an optical passage camera 20 and a charging camera 22 for rolled sensitized paper A, which can be opened and closed with a cover 21 and a mechanism chamber 23. A reversing mirror 24 is provided on the optical axial line for the optical passage camera as illustrated in FIG. 3, while on the bottom of the optical passage camera, rollers for feeding sensitized papers are oppositely disposed. The root of the reversing mirror is secured to a mirror axis 27 pivotally held on both side plates of optic-a1 passage camera 20, and in general the focus-control is adapted to be effected by reflecting light from the main light source on the focusing screen 4, and adapted to prevent light from entering by reversing and closely adhering to the closing plate 28, when exposure is effected on the sensitized paper.

As is illustrated in FIGS. 2 and 3, a driving motor 30 is mounted on a partition 29 in the mechanism chamber 23, and a starting electric circuit is closed by the starting switch 8 to effect driving. As illustrated in FIG. 4, the motor shaft 31 is interlocked with the main shaft 32 by a' gear device 33, and the main driving shaft passes through the partition 29, and is held pivotally by the wall 34 opposite to such partition 29. A driving shaft 35, as shown in FIGS. 4 to 6, has a gear wheel 37 in mesh with a pinion 36 secured on said main shaft 32 is provided, a switch cam 39 for actuating a microswitch 38 in the circuit for revolving the driving motor 30, a mirror cam 40 for reversing the reversing mirror 24, a cutter cam 41 for driving a cutting device for the sensitized papers, an intermittent gear wheel 44 in mesh with a gear wheel 43 secured on an intermittent revolving shaft 42 to drive feeding rollers for sensitized paper and intermittently drive said gear wheel, and a braking cam 45 for breaking the inertia in the intermittent revolution.

The mirror cam 40 is interlocked with a pin 47 projected at an end of a mirror lever 46 which is journalled in on the wall 34 by a pin 48, whereby the mirror lever 46 is imparted with a lever motion by the rotation of said mirror cam. On the other end of mirror lever 46, a pin 49 protrudes to actuate the reversing mirror 24 by pushing a pin 51 of a mirror crank 50 fixed on the mirror spindle 27. The mirror lever 46 is pressed by the mirror cam 40 to rotate to a predetermined position, when the driving motor 30 is stopped to come in contact with a microswitch 52 for actuating an electric controlling circuit to consecutively light and extinguish the auxiliary light-exposure lamp 19 and main light source lamp 11. Furthermore, the reversing mirror 24 is adapted also to be connected with another microswitch 53, when the optical passage leading to the surface of sensitized paper is shut off.

The cutter cam 41 pushes a pin 54 of the cutting mechanism through the rotation of driving shaft 35, to move an upper cutting edge 55 downwards by lever 56, thereby the sensitized paper being cut in predetermined sizes between the upper and lower edges 55 and 57 of the cutter. V

The intermittent rotary shaft 42 is revolved by the gear wheel 43 in mesh with the intermittent gear wheel 44 on the driving shaft 35. That is, the intermittent gear wheel 44 shown in FIG. 5 is formed with threaded portions 44a and 44!) as Well as unthreaded recessed portions 44c and 44d. On such recessed portions, the meshing with the gear wheel 43 is disengaged, so that the braking cam 45 may come in contact with a braking portion 53 provided on one surface of the gear wheel 43 to halt rotation of the intermittent rotary shaft 42. The rotary shaft 42 drives feeding roller shafts 60 and 61 through chain wheel 59 or the like. The feeding roller shaft 66) carries with the feeding rollers 25, for feeding the sensitized paper by pressing both sides of proceeding sensitized paper in cooperation with the roller 26. The feeding roller 25 is arranged near the passage of sensitized paper, which passage includes sensitized paper guiding plates 62 and 63. On the other feeding roller shaft 61, another feeding roller 64 is provided acting as a feeding roller to feed the sensitized paper through the passage for the sensitized paper in cooperation with pushing roller 65 which is carried by lever 56 to contact with the feeding roller.

The main shaft 32 revolves a shaft 67 for driving a developer through a chain wheel 66, or the like, as shown in FIG. 5, while in the developer portion 3 shown in FIG, 2, a developing bath 72 and a stabilizing bath 73 are provided, wherein feeding rollers 68 and 69 as well as a further roller 70 are revolved in response to rotation of the driving shaft by gear wheel 71. The sensitized paper having finished exposure for printing, are impregnated in a developing bath and a stabilizing bath 73 and dewatered by the dewatering roller 70 to be delivered outside. a window 74 is formed in front of the optical passage camera 20 and a photoelectric cell 75 receiving reflected beam of light from the sensitized paper is arranged further in front of the cell 75. The photoelectronic tube actuates an electric circuit to light the main light source lamp 11, in order to give the sensitized paper automatically the fixed value of exposure decided by the main exposure time controlling push button 5.

The main exposure time (the main light source lamp being lit) and the auxiliary light expsoure time (the auxiliary light exposure lamp being lit) according to the main exposure time controlling push button 5 and auxiliary exposure time controlling push button 6 may be selected, for instance, as in the following table.

(1) Main exposure light:

Push button, No

Exposure time rate By selecting an appropriate button each time, the filmexposure values may be regulated, for instance, reversed light, etc., the ratio of black and white areas deviated.

(2) Auxiliary exposure light:

Push button No 1 2 3 4 5 Auxiliary exposure rate (percent) 60 45 3O 15 0 In order to decide the exposing time,

exposure box 20 and the exchangeable lens 18 is affixed to the main body 1 depending on the kind of negative films, for instance, 35 mm.-size, half-size, 16 mm.-

size, etc., which is then placed between the sensitized paper carriers. When the main switch 7 is adjusted to on'-position, the main light source lamp 11 will be lit, and the light having passed through films is reversed by the reversing mirror 24, and the image is reflected on the focusing screen 4, while the fan motor 15 is revolved to cool the l'ght source, and the magnitude of exposure of films (ratio of black and white areas) can be set by controlling focusing through the rotation of focus controlling ring of the exchangeabe lens 18. The film exposure value may be regulated by select'ng any suitable main light exposure controlling push button 5 referred to before, and the gradation of printing paper may be adjusted by selecting and pushing any suitable auxiliary exposure time-controlling push button 6.

The focus is controlled and the starting switch 8 is brought to on-position by pushing both push buttons, whereupon the driving motor 30 is revolved and the driving shaft 35 is revolved through main revolving shaft 32. In consequence, each constructional member on the driving shaft 35 is revolved, First, the switch cam 39 leaves the microswitch 38 that is moved to on-position. Even if the starting switch 8 reaches on-position, the driving motor 30' will continue revolution, and for this reason, the mirror lever 46 is revolved in the direction of arrow by the mirror cam 40 as illustrated in FIG. 6, while the reversing mirror 24 is revolved counterclockwise by a mirror crank 50, and the mirror shaft 27 as illustrated in FIG. 3, leaves a contact point of a microswitch 53 to extinguish the main light source lamp 11, then closely adhering to the closing plate 28 and preventing external light from entering in the camera 20. Simultaneous therewith, the mirror lever 46 pushes against the contact point of microswitch 52, and halts the revolution of driving motor 30 to make the electric circuit for controlling of exposure, in order to light the auxiliary exposure lamp 19 for the time fixed by the auxiliary exposure time controlling push button 6, and the main light source lamp 11 is lit for the time fixed by the main exposure light controlling push button 5 upon said auxiliary light exposure lamp being extinguished.

When the main light source lamp 11 is extinguished, a relay (not shown in the drawing) will work and the driving motor 30 begins to revolve, independently of each said switch. Accordingly, each roller, 68, 69 and 70 will revolve in the developer device. Upon the driving motor 30 being revolved, as the driving shaft 35 revolves, the mirror lever 46 is revolved counterclockwise by the mirror cam 40 as shown in FIG. 6, and as the reversing mirror is revolved clockwise as in FIG. 3, the mirror lever 46 leaves the microswitch 52. In this case, the return movement of reversing mirror 24 revolves the microswitch 53 as soon as such return motion is finished, to light the main light source lamp 11; the gear wheel 43 secured to the intermittent driving shaft 42 revolves for a fixed period of time because the intermittent gear wheel 44 revolves also with such driving shaft. In consequence, as feeding rollers 60 and 61 revolve through a chain gear wheel 59, with the revolution of the intermittent driving shaft 42, the sensitized paper A is fed in the direction of arrow in FIG. 2. The sensitized paper, having already been printed or exposed, is impregnated in the developing bath by means of a feeding roller 68 of a developing bath 72, and further impregnated in a stabilizing bath 73 by means of a feeding roller 69, and delivered outwardly after water being squeezed off by the squeezing rollers 70. The sensitized paper having been pulled out, by the feeding roller 61, of rolled sensitized paper, is guided with guiding boards 62 and 63, and reaches to the under surface of the optical passage camera 29. However, when the sensitized paper is fed in a fixed length, the gear Wheel portion 44a of the intermittent wheel 44 comes to an end, and a recess portion 440 appears. For this reason, the intermittent driving shaft 42 is stopped, and the braking cam 45 approaches near the broken portion 58 on one face of gear wheel 43 and the revolution due to inertia thereof is also stopped.

A pin 54 is pushedby the cutter cam 41 in order to descend an upper edge 55 of the cutter through a lever 56 for cutting printing paper between the upper cutter edge 55 and a lower edge 57. When the cutter cam passes thereby, the upper edge of cutter 55 is returned upwards by a returning spring (not illustrated in the drawings). Upon completing the cutting stage, the intermittent gear wheel 44 again comes in mesh with the gear wheel 43 of the intermittent driving shaft 42 on its gear wheel portion 44b, while the braking cam 54 releases the gear wheel 43 from braking. In consequence, the intermittent driving shaft 42 is revolved to feed the printing paper slightly and when the cut printing paper c-ames to the right position on the bottom surface of the optical passage camera 20, the recess 44d of said intermittent gear wheel approaches near the gear wheel 43 of the intermittent driving shaft 42 which is stopped. The driving shaft 35 revolves slightly, even after the cut printing paper is brought to the right portion on the bottom surface of the optical passage camera 20. The contact point of microswitch 38 is pushed by the switch cam 39 on the driving shaft and the driving motor 30 is stopped and the main light source lamp 11 is extinguished. The whole printing operation is finished and the fan motor 15 is stopped upon the main switch 7 being set on off-position.

The intermittent gear wheel 44 is formed with the one gear wheel portion 44a engraved for feeding the printed printing paper as described before as well as with the other wheel portion 44b for shifting somewhat the cut sensitized paper, and the other portions form the recessed portions 440 and 44d. The braking cam 45 is projected correspondingly on the recessed portion, and the electric circuit for driving the driving motor 30 and related to all the switches, 38, 52 and 53 is consisted of the circuit comprising a time-limit relay, electron tube, etc. In this case, the explanation is omitted as it is not needed particularly.

A further embodiment of the present invention shown in FIGS. 7 through 9 includes a feeding mechanism for sensitized papers and an automatic sensitized controlling mechanism or the like, characterized by the fact that the main light source lamp 11 and condenser 13' are provided on the main body 1, wherein projecting lens 18 is detachably and substitutably provided on the main body 1 according to the kind of negative films used, whereby the central rotary shaft aa of rotary head 76 is arranged with appropriate space from two lines, the one being central line 0 feeding sensitized paper, perpendicular to the central shaft bb of the projecting and substituting lens and the other central line at intersecting at right angle therewith.

Moreover, the central axial line aa of the branch leg 77 of the rotary head 76 to be secured to the main body 1 is arranged as shown in FIG. 8, appropriately spaced from the central line 0 for feeding the sensitized paper which intersects with the central axial line bb (see FIG. 9) of the projecting and substituting lens 18 on one hand and on the central line d perpendicular to said central axial line 12-1). The head 76 rotatably fixed to the fixing seat 78 of main body 1 through the click stop 17 and slide 79. Moreover, an optical axis of the main light source lamp 11 proceeds in the same direction as said central line d as shown in FIG. 7 of on the condenser 13', then proceeds downwards at right angle -by means of reflecting mirror 14, which coincides with the optical axis of the lens, i.e., the central axial line bb for the photographing lens. The photographing substituting lens 18 revolves the rotary head 76 in the direction of arrow X, to ensure the drawing of the main body 1 upwards by changing the position of the rotary head and substitute an appropriate lens according to the kind of films used, while the sensitized paper is adapted to be fed automatically in the direction of arrow Y near the bottom of main body 1.

Thus, in the case of sensitized devices, in which the direction of feeding sensitized papers is designed to print Leica-size films, when half-size film N is intended to be printed by feeding same in the above-mentioned direction, the longitudinal direction of the picture comes to a position perpendicular to the longitudinal direction of the previous Leica-size film M, rendering it impossible to obtain printed pictures (for instance, of carte devisite films, name card size films, etc.), and as a result, in half size films, it is always possible that only half Leica size pictures become obtainable.

Nevertheless, according to the present embodiment, as described before, as the center of revolution of rotary head 76 is shifted to the optical axis of projecting and substituting lens 18, the negative film carrier 9 is appropriately fixed to the two perpendicularly intersecting positions, whereby films are fed along either direction of X-axis or Z-axis. In consequence, the position of all types of films, such as of Leica size, half size or 16 mm. size can be always fixed along the longitudinal direction of pictures.

What is claimed is:

An enlarging and printing machine for photographing apparatus comprising a main light source,

a plurality of main time exposure switches controlling energization of said main light source,

a reflecting mirror disposed on one side of said main light source,

lens means disposed on another side of said main light source for projecting light rays from said reflecting mirror,

camera means including a focusing lens receiving the projected light rays from said lens means,

a film carrier between said lens means and said focusing lens whereby a film image is projected to said focusing lens,

a supply of sensitized paper adapted for intermittent feeding under said focusing lens whereby a projected film image is directed onto a portion of said paper,

drive means including an intermittent gear for intermittently advancing said paper and including cutting means for cutting the said portion of paper,

developer means receiving the said portion of paper to develop the image thereon,

transfer means operated by said drive means for transferring the said portion of paper to said developer means,

an auxiliary light source operatively disposed adjacent said focusing lens and imparting non-image forming light onto the sensitized paper to enhance contrast of the film image projected thereon,

a plurality of auxiliary time exposure switches controlling energization of said auxiliary light source,

intercepting mirror means movable in an out of the path of the image being projected onto said portion of paper whereby said main and auxiliary time exposure switches may be selectively actuated to control the contrast, and

cam means on said drive means engageable with said intercepting mirror means to effect movement thereof.

References Cited by the Examiner UNITED STATES PATENTS 6/1963 Baasner 8824 2/1965 Adler 8824

Images