US1151954A - Automatic photographic-printing machine. - Google Patents

Description

By 2i/r, MM

THEIR ATTORNEY T. C. KORSMO & T. C. OLSON.

AUTOMATIC PHOTOGRAPHIC PRINTING MACHINE. I

IIII IIIIIIIIIIIII 1 T. C. KORSMM T. c. oLso'N.

AUTOMATIC-PHOTOGRAPH() PRINTING MACHINE.

APPLICATION FILED AUG.3.1914.

Patented Aug. 31, 1915.

4 SHEETS-SHEET 2.'

WITNESSES m M f. RK M Oo TANM No Em@ Vo/w WMC@ Uefa JA MMM www THEIR ATTORNEY T. c. KoRsMo I T. C. OLSON.

AUTOMATIC PHOTOGRAPHIC PRINTING MACHINE.

APPLICATION FILED AUG. 3. 'I9I4.

Patented Aug. 31, 1915.

4 SHEETS-SHEET 3.

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77, M Figl. \/\/I I I\I ESSES I I\I \/E I\I TC) RS TOR BdUR/V CONRAD /f/BSMO THON/I 3 C. OLS 0N Eby/2M maf THEIR ATTORNEY UNITED STATES PATENT OFFICE.

TORBJURN CONRAD KORSMO AND THOMAS C. OLSON, OF MADISON, WISCONSIN.

AUTOMATIC PHOTOGRAPHIC-PBINTING MACHINE.

Application filed August 3, 1914.

T0 a//Z Iwlw/nit may concern Be it known that we, ToRnJUnN CONRAD Konsnio and T'HoMas C.' (.)LsoN, citizens of the United States, residing at Madison, in theieounty'of Dane and State of llliscolisiii, have invented certain new and useful Improvements in Automatic Photographic Printing Machines, of which the following .1s a specification.

Our invention relates to motor driven automatic photographic paper or post card printing machines; and the objects of our invention are to provide a machine that will, upon placing a sheet of sensitized paper or post card upon a platen or receiver, carry the same to a negative, hold it in contact the desired time, release it and deposit the same in a darkened receptacle, to provide a machine that will time the exposure in proportion to the strength or brilliancy of the light source employed in the light cabinet, to provide a machine without shutters, that will regulate the time of exposure by closing or breaking the circuit leading to the light source in the cabinet.

Additional objects of the invention will appear in the following complete specication, in which the preferred form of the invention is disclosed.

In the drawings similar characters of reference indicate corresponding parts in all of the views, in which- Figure l, is a side elevation of our machine; Fig. 2, a vertical longitudinal section on line 11b-B, Fig. 3, of the reciprocating switch; Fig. 3, is an end elevation of the switch; Fig. 4, is a top view or plan of the switch; Fig. 5, is a front elevation of the switch; Fig.v 6, is a plan of the machine with parts removed; Fig. 7, is a side elevation of one of the gage actuating links; Fig. S, is a rear elevation of the same; Fig. 9, is a side View of the carriage with the outer plate removed; Fig. l0, is a plan of the gage; Fig. 11, is a rear elevation of the gage; Fig. 12, is a longitudinal section through the platen on lines @1 -H, Fig. 13; Fig. 13, is an elevation of the entire machine from the motor end; Fig. 14, is a vertical section on lines (-D, Fig. G; Fig. 15, is a section on line K-L, Fig. 1G; Fig. 16, is a view of the recipro ating and lever movements and connections.

The bed or frame of our machine comprises two longitudinal wooden rails 1, reduced in width for a distance and at one end Specification of Letters Patent.

Patented Aug. 31, 1915.

Serial No. 855,536.

the said rails are spaced apart and secured to each other by metal bars At the narrow ends, a distance from the bars 2, is disposed a bar 3, on top of the rails l. Said bar 3, having three depending lugs, one adjacent each end and one approximately at the center thereof. The two outer lugs are drilled and into each is secured a round rod 5. which extends to the opposite end of the wooden rails 1, passing through depending lugs on the two transverse bars at, and secured to the same by the set screws 7. The bars 2, are secured at their outer ends to the top of the ails 1, then depressed between the rails and on the top of the depressed portion an electric motor 8, is mounted. To the. end of the motor shaft 9, a coupling 10, is secured, and to the opposite end of the coupling a shaft 11, is attached. Said shaft extending through the bearing 12, in carriage 13, andjournaled at its opposite end in bearing 14. Upon said shaft 11, is cut the worm l5, and in mesh with the said worm is worm gear 16, mounted upon the transverse shaft 17.

rlhe carriage 13, before mentioned eomprises two side plates 13, two end plates 1S, and one intermediate plate 1S). Both side plates have outwardly extending bosses 20, adjacent their ends and lower edges adapted to slide upon a rod and to be secured in the desired location by the set screws 7. Through one end of the side plates 13, a longitudinal slot 21, is cut and above said slot lugs are disposed. Below the slot are disposed the lugs 23. To the underside of the lugs is secured by screwsl 2%, a fiber bar 25, adapted to be moved longitudinally of the lugs by means of the slots 2G. At one end of the fiber rail 25, a lug "27, extends upward and has a threaded hole through the same, adapted to receive the adjusting screw 28. Said screw being loosely disposed through a lug 29, which is integral with the side plate 13, thereby providing a means -for adjusting the fiber bar when the screws Q4, are loosened. Upon the lower side of the said bar 25, a metal plate 39, is secured flush with the same at one end and extending upward on the lug at the other end a distance sufficient to admit of attaching an electric conductor 29, by means otl the binding screw 30. On the top of the lugs is secured the fiber rail 3l, which is covered on the top and both ends by a metal band 3i.. rl`he said metal band being connected to a source of current by the lconductor 33, which passes trom a motor 'through a series of lamps 3l, and back to binding screw 35.

Mounted in sliding contact between the two fiber rails 25, and 31, is a switch block 3G, constructed oit' liber, with one hole passing from top to bottom thereof, and one passing upward a distance from the bottom. In the first mentioned opening two carbon brushes 37, are disposed, having a coil spring between them. In the other and last mentioned opening a carbon plug 38, is disposed with a spring on the top thereof for purpose of balancing the switch on the rails. The switch having a reciprocating movement on the rails and the lower carbons being in constant contact with the metal band 8:2, it is clear that when the switch passes to a point where the upper carbon brush 37,

engages the metal plate 39, a circuit will be closed through the lamps and will remain closed until the switch on its return movement passes ottl of said plate 39.

The switch is operated by a crank move-` ment connected to a motors source of current being the same line that supplies the lamps, it is apparent that a weakeniiiig of the current would cause the motor to slow down and the brilliancy of the light to decrease thereby making necessary a longer exposure the sensitized material. "lhe motors source of current being the same asv that supplying the lamps, it is obvious that the weakening of the light wouldeti'ect the exposure controlling mechanism in like manner, and cause the time of exposure to increase in pro )ortion to the brilliant-.y of the light, there y avoiding weak or undertimed prints.

rl`he before mentioned shaft 17, is journaled in bearings 110, inthe carriage 13, and on one end is crank arm 41, integral therewith. In the outer end of said crank arm is disposed wrist pin i2, and upon the said wrist pin contiguous the arm is revolubly connected the slotted rod 113, and abutting the same on the pin is revolubly disposed one end of the connecting rod 44. The other end of said rod is secured to the wrist pin l5, which passes through the switch block 36, and is secured in operative relation thereto, by nut 4G. To the inner wall 1S), of the carriage 13, is pivotally attached the rocker4 arm 47, by the stud 48. In the lower end of said arm is disposed a wrist pin 49, which passes through the slot in the arm 43, and to which it is connected in sliding engagement. To the said wrist pin 49, between the rocker arm and the said slotted arm is4 pivotally attached a connecting rod 50, the opposite end of which is attached to a depending arm 51, integral with the barrel .72. Integral with said barrel and extending upward from the opposite end from the depending arm is bracket 53, to the upper face of which is secured one end of the platen 54, by means of the screw I pon the back of the said platen, a distance from each end and adjacent the lower edge are two round bosses 50, which are bored out to form stutling boxes. A threaded gland or follower :'17, is disposed in each one of said stuffing boxes. Said glands are drilled lo admit of a bifurcated gage :38, heilig arranged to slide through said glands and platen. A forni of packing being interposed to provide the desired resistance to the movement of the gage. Upon the back of the platen adjacent one end and intermediate the width thereof, is located a barrel 59, and a spring actuated guide pin (30, is arranged within the same and adjusted for resistance by the cap 61, see Fig. 12.

'.lo one of the end plates 1S, of the. earriage 13, are secured the spring links G2. The loop portion of said links surrounding the central bar of the gage 5S, .impart an intermittent reciprocating n'iorement to the gage coincident with a corresponding movement of the platen. Extending the gage ends through the platen when it is thrown back and the card placed thereon and receding when the platen closes against the negative, see Fig. 1. The intermittent movement referred to'is produced by the slotted arm 43, allowing the rocker arm -l7, to rest during a. portion of the revolution of the crank arm l1.

A distance down from the top and back from the end of the carriage a shaft (33, is journaled and passes t'ansversely through both side plates 13, and the intermediate plate 19. U pon said shaft between the front plate and the intermediate plate the barrel loosely mounted and t0 the opposite side ot' the intermediate plate a torsion spring is fastened at one end and surrounding said shaft extends to the bracket (35, to which the other en d is attached. The brackets 53, and (3.3, are both rigidly secured to the. back of the platen, see Fig. 13, and although the bracket arries the platen to an approximate contact with the negative, the torsion spring through its connection with the bracket (35. completes the contact. After the card G7, has been exposed the desired time and the platen starts on its backward movement, the 'ard is released and drops down onto the endless belt Gli, and is carried thereby to the box G8, which is light proof. Upon the end of the frame opp@- site the motor, a. cabinet 72, is mounted and secured to the bars l, in any convenient manner. Two rods (if), are disposed inside of said cabinet a distance from the bottoni and sides thereof` carrying in sliding contact, a liber bar 70, transversely of the cabinet. Upon the top of said bar are mounted a. plurality of electric lamps 3l. (.)n the front side of said cabinet adjacent the top a portion is removed and the aperture, .adapted to hold a negative or film, against which they platen deposits and holds the paper or iard to be printed. The lamps aforesaid being mounted on the sliding bar ran be located the desired distance from the negative and secured in that position by means of the adjusting threaded rod 71.

The endless belt (i6, before referred to is mounted on rollers 73, disposed between the rails l, and are driven by the belt 74, from sheave 75, on shaft 17, to sheave 76, see Fig. 14. The end ofthe frame 1, under the motoiis mounted on standards 7T. The cabinet end of the frame is inclosed in a suitable light proof casing to protect the prints in their passage from the negative to the box (58, and if desirable aruby light can be mounted on the top of the cabinet to guide the operator.

t is obvious that the most minute adjustment of the platen in relation to the negatiif'e an be attained by sliding the carriage on the rods 5, by means of the adjusting screw 6 which is threaded and passes through a` oss on the end plate 18.see Fig. l.

There has thus been provided a simple and eiiicient device of the kind described and for the purpose specified.

Having thus fullyl described the invention, what is claimed as new, is

l. In a photographic printing machine, a main frame comprising siderails, rods extending longitudinally thereof inside the rails, means for securing the rods to the frame, a. carriage slidably mounted on said rods,.a platen pivotally secured to said carriage, said platen adapted to carry a sheet of sensitized paper or post card into Contact with a negative, a gage carried by said platen for holding the paper or card in proper position and releasing same after exposure, means within the carriage for imparting an intermittent reciprocating movement to the platen and gage, all substantially as described.

2. In a 'photographic printing machine, a main frame, an electric motor mounted upon one end of said frame, rods extending 1ongitudinally of said frame, a carriage mounted on said rods, means for adjusting the carriage on .said rods, a shaft extending from said motor, a coupling connecting said motor shaft to a second shaft, said second shaft revolubly disposed within ljournal boxes'in said carriage, a worm integral with said second shaft, a worm gear meshing with said worm, a transverse shaft carrying the said worm gear, a crank arm at one end of said shaft, a wrist pin in the outer end of said crank arm, a slotted rod connected to said wrist pin contiguous the crank arm, a connecting rod connected to said wrist pin ciprocating movement therefrom, all sub-r stantially as described.

3. In a photographic printing machine, a main frame, a motor mounted on one end of the frame, rods extending longitudinally of the frame, a carriage mounted on the said `rods, a shaft extending from the motor through the carriage, a worm on said shaft, a worm gear meshing with said worm, a shaft upon which said Worm gear is mounted a crank arm at one end of said shaft, a wrist pin in said crank arm, a connecting rod attached at one end to said wrist pin and the other end of said rod connected to a switch block, through a slot in the side of the carriage, two outwardly extending lugs attached to the side of the carriage aboveI and in alinement with said slot, a tiber bar secured to the underside of said lugs by screws disposed in slots in said lugs, an adjusting screw adapted to 4move said bar on said lugs, a metal plate secured to the lower side of said bar for a portion of its length from one end, a binding screw passing through said plate for attacl'iing a wire thereto, a second fiber bar secured to the lugs on the carriage a distance below and in alinement with the first bar, a metal plate extending over the entire top and both ends of said second bar and secured thereto, a binding screw at one end of said plate for att-aching an electric wire thereto, a switch block composed of fiber and disposed in sliding relation between the two liber bars and operated by the connecting rod aforc said, two carbon brushes in said switch, a spring between said brushes for insuring contact with the metal plates, substantially as described.

4. In a photographic printing machine, a main frame, a motor mounted on one end of said frame, rods extending longitudinally of said frame, a carriage mounted on said rods, a cabinet mounted on said rods adjacent the carriage rods within the cabinet, a fiber bar mounted on said rods within the cabinet, a plurality of electric lamps mounted on said fiber bar, means for moving said bar along said rods. means for securing a negative in an aperture in the end of said cabinet, wires connected to a source of cm:- rent and attached to the binding post on one of the fiber bars aforesaid and through the lamps to the binding post on the other fiber bar, a reciprocating switch block in sliding `contact with said fiber bars for closing or breaking the current through the lamps, a carrier adapted to .receive the prints from the platen and deposit the saine in a light proof receptacle disposed under said carrier. l

5. In a photographic printing machine, a main frame, a motor mounted on onexend of said frame, rods extending longitudinally of said frame, a carriage mounted on said rods, a shaft journaled in said carriage adjacent the top and one end, a barrel. mounted on said shaft, a depending arm integral with said barrel, a means for oscillating said arm, a bracket also integral -with said barrel, a platen secured at one end to Said bracket, a second bracket loosely disposed on said shaft and secured to the other end of said platen, a torsion spring disposed on said shaft one end of said spring attached to the second bracket and the other attached to the intermediate Wall of the said carriage for the purpose of producing a spring pressure of the platen against the negative, substantially as described.

In testimony whereof we affix our signatures in the presence of two subscribing witnesses.

TORBJURN CONRAD KoRsMo. THos. o. oLsoN.

l/Vitnesses:

E. S. BARMEN, C. BosTAD.

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