US1737965A

US1737965A - Photographic-printing machine

Info

Publication number: US1737965A
Application number: US169253A
Authority: US
Inventors: William A Flower
Original assignee: Individual
Current assignee: Individual
Priority date: 1927-02-18
Filing date: 1927-02-18
Publication date: 1929-12-03
Anticipated expiration: 1946-12-03

Description

Dec. 3, 1929. w. A. FLOWER PHOTOGHAPHIC PRINTING MACHINE Filed Feb. 18, 1927 4 Sheets-Sheet iii/12 7010 Dec. 3, 1929. w. A. FLOWER PHOTOGRAPHIC PRINTING MACHINE Filed Feb. 18, 1927 4 Sheets-Sheet iii g /5 W LA WWW :l u 11W 22 amen-tot W11 .j lazl'afi Dec. 3, 1929. w. A. FLOWER 1,737,955

\ PHOTOGRAPHIC PRINTING MACHINE Filed Feb. 18, 1927 4 Sheets-Sheet 5 Dec. 3, 1929. w. A. FLOWER PHOTOGRAPHIC PRINTING MACHINE Filed Feb. 18, 1927 4 Sheets-Sheet 4 Qvwewtoz aifowu o,

Patented Dec. 3, 1929 PATENT OFFICE WILLIAM A. FLOWER, or TWIN FALLS, IDAHO PHOTOGRAPHIC-IPRINTING MACHINE Application filed February 18, 1927.

This invention relates to a machine for printing photographs from negatives, one of the objects being to provide a structure of this character the print supporting surface of which is arranged at such an angle as to allow the prints to be delivered by gravity after" the printing operation, thereby greatly speeding up the quantity production of photographs.

A further object is to provide a film holding device which can be operated by a foot pedal, means being employedin connection with the platen of the machine for stamping each print when brought to proper position upon the ne ative.

ith the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement ofparts and in the details of construction hereinafter described machine.

Figure 2 is aplanview on an enlarged scale ef the inclined face of the light box and the partscarried thereby.

Figure 3 isa section on line 33, Figure 2,

' one position'of the platen being shown by full lines and another position being indicated by broken lines.

Figure 4: is a section on line H, Figure 2.

Figure 5 is a section on line 55, Figure 2.

' Figuredis a section on line 6--6, Figure 2.

Figure 7 is a plan view of a portion of a modified form of the machine, the platen being broken away to show the form of film holder used.

r FigureS is a section on line 88, Figure 7.

Figure 9 is a section through a portion of the filmholder, said section being on the line 9--9,-Fi gure- 8.

Referring to the figures by characters of reference 1* designates a light box,.the lamp Serial No. 169,253.

therein (not shown) being included in a circuit with a fixed contact 2 and a movable or spring contact 3 both of which are located on the inclined portion 4 of the top of the box. This inclined portion has an opening 5 therein covered by a glass light 6 the upper surface of which is flush with the corresponding surface of the box. Adjacent the upper side of the opening 5' is a guide strip 7 fixedly connected to the box and arranged on the box adjacent one side of the opening 5 is a cross strip 8 which can be mounted at its ends on supporting blocks 9. A platen consisting of hingedly connected

members

10 and 11 is adapted to extend over the opening 5, there being a hinge leaf 12 projecting beyond one side edge of the platen and hingedly attached as at 13 to the strip 8. The lower or active face of each member of the platen is provided with a soft covering 14 of felt or the like and an arm 15 is extended from the free side edge of the platen to a point where it can come into contact with the movable contact 3 so as to force it against the contact 2 when the platen is in normal or closed position. The platen is adapted to be operated by means of a handle 16 and relative move'mentof the two members of the platen can be limited by a stop bracket 17 carried by one of the members.

Arranged on the inclined top of the light i:

box beneath the hinge leaf 12 and between the platen member 10 and the block' 9' is a clamping strip 18 the ends of which are mounted in channeled guide brackets 19 secured to the light Springs 20 are seated in recesses 21 in the clamping strip 18 adjacent the ends thereof and serve to hold said strip normally spaced a short distance from the inclined upper surface of the light box. A rod 22 is slidablewithin the top of the'light box and within each spring 20 and is connected to the upper surface of the strip 18. To each of these rods 22 is attached a cord 23 or the like, the said cords being inturn connected to a pull cord 24' mounted on a guide sheave 25. The pull' cord- 24; is extended to a foot pedal 26. Obviously, therefore, when the pedal is shifted out of normal position the strip 18 will be'pulled toward the top of the light box against the action of the Springs 20 so as to clamp upon a negative extending under the strip. To facilitate this clamping action a strip of any suitable material indicated at 27 can be fastened along that face of the clampin strip 18 nearest the opening 5, this strip 2% having a longitudinal flange 28 for bearing against the negative.

A bracket 29 is mounted on the member 10 of the laten close to one corner thereof nearest the inge 13, said corner being cut away as shown at 30 so as to receive the lower end of an adjustable rubber stam 31 or other suitable impression device. he impression device illustrated is supported at one side of the bracket 29 and is pivotally connected thereto. A link 32 is pivotally connected to the upper ortion of the impression device and is sli ably mounted in a bracket 33 mounted on the top of the light box. An ink pad 34 is arranged on the light box at a point where it will be engaged by the impression surface of the stamping or printing device when the platen is moved upwardly and laterally away from the opening 5 as shown by broken lines in Figure 3. The impression device is so located with reference to the hinge 13, however, that when the platen is moved to active position, the impression surface will contact with the back of a print supported beneath the laten.

A guide ro 35 is extended along two guides of the inclined portion of the top of the light box and parallel with two sides of the opening 5. On one portion of this rod is mounted an opaque mat 36 and another opaque mat 37 is mounted on another portion of the red, the two mats being disposed at right angles to each other and crossed.

A counter indicated generally at 38 can be located on the light box near the opening 5, this counter being provided with the usual operating arm 35. A finger 40 extending from the platen is adapted to engage and depress arm 87 each time the platen is lowered to active position. v

In practice the

mats

36 and 37 are adjusted relative to each other to define an opening of the size of the picture to be printed. The platen is swu upwardly and laterally to expose the glass ight 6. T ereafter the negative is inserted under the clamping strip 8 to position along the guide strip 7 and upon the

mats

36 and 37. This negative has been indicated N in the drawing. The operator then depresses the pedal 26 which causes the negative to be clamped as heretofore explained. Thereafter the sensitized paper is placed on the negative and the platen'moved downwardly to clamp the paper upon the negative. This movement of the platen will produce three operations, namely the printing of a designatin number or the like on the back of the paper, t e closing of the circuit through the

contacts

2 and 3, and the actuation of the counter 38. The resultant illumination of the light box will produce the desired printing of the photograph and thereafter the platen is raised to break the circuit, release the print, and reapply the impression device to the ink pad 34. By releasing strip 18 the gripped negative will be released and a new one can then be brought to position.

Instead of providing the film holding means illustrated in Figures 1 to 6 inclusive a modified structure such as illustrated in F i

res

7, 8 and 9 may be employed. In this mo ified structure an angular film holder 41 is extended along the upper'edge and one side edge of the opening 42 in the top 43 of the box, the upper portion of this holder being connected to the top 43 by hinges 44. Gripping tongues 45 are extended laterally from a strip 46 attached to the side portion of the film holder, these tongues being designed to engage and grip a film when properly placed under the holder. An arm 47 is secured to and extends from the side portion of the holder and has a projecting portion which is normally thrust upwardly by a spring 48 as shown particularly in Figure 8. An actuating cord 49 or the llke can be connected to the arm 47 and extended downwardl through the to 43. By actuating this cor the arm 47 (38.11%9 ulled downwardly so as to swing the film older upwardly a short distance. Thus a film can readily be inserted under the holder. When the cord 49 is released the holder will move automatically into film engaging position so as to hold the film firmly.

Secured to the top 43 adjacent one end of the upper portion of the film holder 41 is a bracket 50 provided with an arm 51 arallel with the side of the opening 42. To t 's arm is secured the leaf 52 of a hinge, the other leaf of said hinge being attached to the platen 53 which can be of the same construction as the ones shown in Figures 1 to 6 inclusive. This platen can also be provided with the same marking means heretofore described the ink ing pad forming a part thereof being indi'-- cated at 54 and being mounted on the bracket 50. As the bracket arm 51 is elevated above the top 4 a clearance is left below the hinge leaf 52 so that the insertion and removal of a film will not be interfered with.

What is claimed is:

1. A photograph printing machine including a light box having an opening, means for supporting a negative across the opening, normally crossed mats hingedly and slidable connected to the light box for adjustment to a supported negative, a cross strip su ported by but spaced from the light box a jacent the negative supporting means, a platen hingedly connected to the cross strip for clamping a negative to the supporting means and holding a sensitized sheet to the negative, there being a space between the light box and the cross strip for the reception of a negative slidable along the light box to position on the supporting means, a yieldingly supported clamping member adjacent the cross strip and beneath the platen, and means actuated from beneath the light box for actuating the clamping strip to bind the negative and hold it against movement relative to the light box.

2. A photograph printing machine including a light box having an opening, means for supporting a negative across the opening, normally crossed mats movably connected to the light box for adjustment to a supported negative, a cross member supported by but spaced from the light box adjacent the negative supporting means, a platen movably mounted for clamping a negative to the supporting means and holding a sensitized sheet to the negative, there being a space between the light box and said cross member for the reception of a negative slidable along the light box to position on the supporting means, a yieldingly supported clamping member adjacent the cross member and beneath the platen, and means for actuating the clamping member to bind the negative and hold it against movement relative to the light box.

In testimony that I claim the foregoing as my own, I have hereto aflixed my signature.

WILLIAM A. FLOWER.