US1435850A - Photographic-printing machine - Google Patents

Description

G. C. HULSE.

PHOTOGRAPHIC PRINTING MACHINE.

APPLICATION FILED DEC-.20, I920- Patented Nov. 14, 1922.

Z SHEETS-SHEE'I 1,

FIGURE 5 INVENTOR FIGURE 2.

ATTORNEL G. C. HULSE.

PHOTOGRAPHIC PRINTING MACHINE.

APPLICATION FILED DEC. 20. 1920.

1,435,850. PatentedNofi 14,1922.

2 SHEETS-SHEEL 2.

I 19 1 FIGURE 4 FIGURE 5 42 0 9 4 FIGURE 6 mvsmofi' ATTORNEY Patented Nv. 14, 1922.

UNITED STATES 1,435,850 PATENT OFFICE.

GEORGE C. HULSE, OF SAN JOSE, CALIFORNIA.

PHOTOGRAPHIC-PRINTING MACHINE.

Application filed December 20, 1920. Serial No. 431,853.

' T all whom it may concern."

Be it known that I, Gaonoa C. Hunsa, a

-citizen of the-United States, and resident machine for printing pictures from a photographic negative.

It is the ob'ect of my invention to provide a machine w erein the printin paper .may

' be quickly and easily positione and held in place for printing, automatically removed.

from the printing position when the printin has been accomplished, and automatica ly deposited in a suitable receptacle in a predetermined position.

In the drawing: I

Figure 1- is a vertical cross section through the machine.

Figure 2 is a view on line 22 of Figure l.

Fi ure 3 is an enlarged detail elevation of one isc.

Figure 4 is an enlarged view of a part of the negative holder.

Figure 5 is a detail of a portion of the film holder.

Figure 6 is a section on line 66 of F ig ure 4. e e

Referring more particularly to the drawing, 1 indicates a suitable table having a box2 set therein at an angle as shown and open at its front end 3. A slot 4 is formed in table 1 adjacent to the front edge of box 2 and provided with a rearwardly directed chute 5 discharging into a box 6 supported beneath table 1 by supports 7.- The front 8 of box 6 is preferably left open to permit the easy removal of prints 9 therefrom. In box 2' are arranged incandescent lights IO-10 in an electric circuit 11 including any well known form of switch 12 Which is pro vided with'a push button .13 spring actuated to an open position and located at the lower front edge of box 2 and extending a distance inefront thereof as shown.

At 14 is shown a frame. having a glass plate 15 fitted therein and hinged to the upper front edge of, box 2' asat 16, the said frame extending over push-button 18 in such a manner as to engage the same when pressure is exerted uponsaid frame. At 17 is a vignetting member slidably mounted on rod 18 which is in turn mounted u on brackets 19 on frame 14 so as to lie para lel with the lower edge of said frame and spaced a distance therefrom. At 20 is a second vignet-' ting member slidably mounted on rod 21 WhlCh is in turn mounted upon brackets 22 on frame 14 so as to lie parallel with the right hand ed e of said frame and spaced a distance there rom. 3

Near the lower right hand edgeof glass plate 15 and mounte on pins 232425' set in'frame 14 are three-discs 262728 respectively, each having the ordinal numbers up to 9 punched therein near itsouter edge as shown, each disc being in fact a revolving stencil. I

At 29 is shown a door mounted upon the upper edge of frame 14 by hinges 30, the said door havin its lower portion 31 hingedly connected t ereto as at 32 and to turn upwardly. To door 29is connected a spring 33 attached to a supporting rod 34 which is in turn mounted upon box 2. An incandescent light 35 is mounted in box 2 and operatively mounted in an electric circuit not shown, and controlled by switch 36. This light is normally turned on while lights 101O are normally out. In using this printing'machine thenegative is arranged as indicated at 37. A supply of sensitized paper is placed conveniently at hand and the operator lays one of these in position over the negative 37 and discs 26'-'27--28 as indicated at 38, usin say, his right hand. With the left hand e brings door 29 -31 down to the position indicated in dotted lines at 29 -31 the lower edge of door 29 engaging the paper 38 and hold-' ing it in lace so that the operator may reach for anot er piece of sensitized paper with his right hand. The portion 31 is now brought down upon the paper as at 31* against the tension of spring 33 and enough pressure exerted thereon to operate switch 13 and turn on lights 10--10. Usually the exposure required is but for a moment only,

and-upon release of the pressure on button through slot 4 into chute 5 and thence intobox 6. Since the chute 5 is curved as shown each print discharged therefrom falls into box 6 with its sensitized face upwards. Of

course all of the prints could be discharged face downwards-if so desired by a rear-- as at to act as guides for the negative 37 and hold member 20 in contact with glass 15. The membersfll'l and 20 may be arranged to accommodate any size of negative by sliding them on their respective rods 18 and 21. The lower edge of the negative in the present case rests on pins LO- 40 above discs 2627--28 so that with the discs arranged to print a given number through the numerals stenciled therein, the said number will be printed upon each paper exposed simultaneously with the printing of the picture from the negative.

Astrip .is inserted under strips 39-39 and held in place by pins 40-40 as at 41 to sup ort cut films. This strip preferably exten s upwardly just over the lower edge of glass 15 and is provided with orifices 42-43-44 so as to act as a mask for the figures on discs 2627--28 except those in the u ermost itions arran ed to rint a desii'fid numbgr mn the sensiti zed pa per placed thereover.

From the abovedescription it is clear that with quickly printing papers suchas are commonly usedin amature photography a large number of prints may be made from a single negative in a very short space of time, in fact as fast'as the operator can pick up the sensitized sheets andlay them over the negative, the paper not being touched by the hands from the time it is placed on the negative until it is removed from box 6.

an illuminating means arranged therein, a frame carrying a translucent plate hin ed.

to the upper edge thereof and extending over the up er end, thereof, a door for 010s ing over t e translucent plate, .a spring an illuminating meansarranged therein, a

'frame carrying a translucent plate hinged to the upper edge thereof and extending over the upper end thereof and normally spaced a istance therefrom at its lower edge, a normally open switch operatively inserted in the wiring system of said illuminating means, and engaging said frame to space the latter normally from the box, means arranged to receive article from the frame when in its normal position, a jointed door hinged to the upper edge pf said frame and adapted to cover the same, a support mounted on said box and extending forwardly thereof, and a resilient connection between said support and one portion of said door.

3..A printing machine including a box arranged at an angle to a horizontal plane, an illuminating means operatively mounted therein, means movable from a normal position for holding a'iprinting sheet for a pre-' determined period in operative relation to said illuminating means, a curved chute arranged to receive each sheet from said holding means, after it' has returned to its normal position and turn the same face upward and a receptacle arranged to receive the sheets from said chute.

4. A photographic printing machine com-- prising a lamp box, a print-discharge chute spaced therefrom, a frame hinged to the box and normally. spaced therefrom at one side and disposed at an inclination to discharge a print therefrom into the chute, said frame being adapted for moving from its normal position ,for closing down onto the box, and means for urging the frame to its normal position.

GEORGE o. HULSE.

Images