US1602700A

US1602700A - Photographic-print-drying machine

Info

Publication number: US1602700A
Application number: US51457A
Authority: US
Inventors: Noun Perry
Original assignee: Individual
Current assignee: Individual
Priority date: 1925-08-20
Filing date: 1925-08-20
Publication date: 1926-10-12
Anticipated expiration: 1943-10-12

Description

Oct. 12 1926. 1,602,700

' P. NOUN FHOTOGRAPHIC PRINT DRYING MACHINE Filed August 20, 1925 2 Sheets-Sheet 1 Patented Oct. 12, 1926.

UNITED STATES PERRY NOUN, OF BUFFALO, NEW YORK.

PHOTOGRAPHlIC-PRINTfDRYING MACHINE.

Application filed. August 20, 1925.

My invention relates to improvements in photographic print drying machines, and the object of the invention is to devise a machine having a rotatable member in which a plurality of print drying racks are supported the rotatable member being enclosed in a suitably heated casing. A further object of the invention is to provide a closable receptacle in which the print drying racks may be placed upon their removal from the rotatable member, means being furnished for conveying the hot air from the casing of the rotatable member to the aforementioned receptacle and from thence back into the casing. A still further object of the invention is to devise means whereby the machine operator may remove either a complete rack or individual plates, the prints being placed upon such plates for drying.

My invention consists of a photographic print drying machine constructed and arranged all as hereinafter more particularly described and illustrated in the' accompanying drawings in which:

Fig. 1 is aside elevational view of my machine, the casing being broken away to disclose the rotatable rack supporting memher, which is also partlybroken away.

Fig. 2 is a front elevational view thereof.

Fig. 3 is a perspective view of a broken away portion of the machine showing the receptacle for receiving the racks when they are removed from the rotatable member.

Fig. 4: is 'a perspective view of the rotatable member removed from the machine.

Fig. 5 is a perspective view of one of the racks.

Fig. 6 is a perspective view of one of the plates upon which the prints are placed; a plurality of these plates are positioned in each rack.

Like characters of reference indicate the corresponding parts in the different views.

1 is a hollow rotatable member of cruciform formation, being constructed of sheeting supported upon a plurality of angle 2 which are built about a. central web 3 in which is secured a transverse shaft 4 Serial No. 51,457.

being held in a vertical position and spaced apart by the corrugations 5 and 6 in the I plates.

Longitudinal guides 11 are positioned centrally in the member 1 and constitute with respective pairs of angle irons 2 runners between and upon which the racks are supported, two. racks being inserted into each arm of the member 1. The racks are secured in thearms of the member 1 by bars 12 which are hinged to one side of the member, their ends being bent inwardly and adapted tov clip over suitably positioned pins 13 upon the other side of the member 1.

The rotatable member 1 is mounted in a casing 14:, the protruding ends of the shaft 4: being journalled in bearings 15 centrally positioned in the sides of the casing 14.. Upon one end of the shaft t which extends through its bearing 15a gear 16 is provided, and adapted to mesh with a pinion 17 upon the armature shaft of an electric motor 18 which is positioned upon the outside of a casing 19 which encloses the gear and pinion. 20 is a foot operated switch for controlling the electricmotor and consequently. the rotations of the member 1. a

On the front of the casing 14:, Iprovide an aperture closed by a sliding door 21 mounted in a pair of vertically positioned guides 22 on the outside of the casing, the aperture being positioned on the same level as the center of the member 1. Positioned at the bottom of the door 21 and extending beyond one side of the machine a table 23 is furnished, its outer edge being supported upon legs 24, and its extended portion adapted to carry a rack receiving receptacle 25. This rack receiving receptacle has two slidable doors 26 and 27, the door 26 being at right angles and adjacent to the door 21 in the casing, the other door 27 being at right angles to the door 26, as is clearly shown in Figure 8.

A pair of electrical elements 28 are positioned in a recess 29 in the bottom of the casing 14, and constitute the means for heating the interior of the casing for drying the prints, the heated air being sucked upwardly through the arms of the member 1 by means of the fan 80 which is positioned in an orifice 31 in the top of the casing, such orifice opening into a hot air pipe which extends into the top of the rece atacle 25. 33 is a further hot air pipe extending from the bottom of the receptacle 25 to the lower portion of the casing 14, the lower floor ot' the receptacle having perforations for permitting the air to enter the lower pipe My machine is operated as follows:

The current is turned on in the electrical elements 2% thus heating the air in the easing l-Il, the suction fan 30 is now rotat d b i' means oil the electric motor and the hot air is drawn upwardly into the pipe 32 'tron'i where it passes donn into the receptacle 25, passing from thence through the pipe hack into the casing l t where it is reheated. The prints are placed in the usual manner upon the plates 8, the plates being inserted into the racks, the racks are in turn inse ted into the open ends of the arms of the member 1, a rack being put in one side of each arm when this is done a second rack is inserted in each arm. The member 1 is now rotated tor a certain length of time and the first rack tl at was put in is now taken out and is placed by the operator in the receptacle 25, the door 2 being opened for this purpose, thus in the interval between the time when the racks are taken from the machine until the prints are about to be removed from the plates, the prints are in a further drying compartment which will completely dry any prints that may be slightly damp.

By opening the door 27 the racks may be removed from the receptacle 25 without disturbing the operation of the machine. hen it desired to remove some of the plates from the racks it is merely necessary to swing the bar 12 open and pull the required plates out of the rack, the bar 12 being swung into position before the member l is again rotated.

From the above description it will be seen that I have devised a very simple and etfective machine for drying photographic prints which is simple and quick in operation. Furthermore by always removing the 'achs at the same position it has been made possible to provide the table for sliding the racks onto when they are removed from the machine thus obviating the necessity of lit-ting the loaded racks by the operator as is very often the case with these machines. By the use of the receptacle 25 a thorough drying of the prints is insured as they are exposed to the heated air until the moment that they are removed from the plates.

.Vhat I claim for my invention is 1. A photographic print d :ying machine comprising a casing, a print containing member mounted in the casing, air heating means positioned in the casing, a print receiving receptacle in the vicinity of the easing, and means for conveying the hot air from the top of the casing and injecting it into the print receiving receptacle.

2. A photographic print drying machine, comprising a casing, a print containing mem ber mounted in the casing, air heating means positioned in the casing, a print receiving receptacle in the vicinity of the casing, means for conveying the hot air from the top of the casing through the print receiving receptacle, and from thence back into the lower portion of the casing.

3. A photographic print drying machine,

con'iprising a casing, a print containing member mounted in the casing, air heating means positioned in the casing, a door in the casing giving access to the print containing member, a table underneath the door, a print receiving receptacle mounted on the table adjacent to the door, means for conveying the hot air from. the top of the casing through the print receiving receptacle, and from thence back into the lower portion of the casing.

A photographic print drying machine comprising casing, a rotatable print containing member mounted therein, print containing drying racks adapted to be inserted into the rotatable member, print containing plates adapted to be inserted into the drying racks, and unitary means for locking the racks and plates in place in the rotatable member.

5. A photographic print drying machine, comprising a casing, a print containing member mounted in the casing, air heating means positioned in the casing, a door in the casing giving access to the print containing member, a table underneath the door, a print receiving receptacle mounted on the table adjacent to the door, a pair oi? doors in the print receiving receptacle, one of said doors being adjacent to the door in the casing and through which the prints are inserted into the print receiving receptacle, the other door constituting means through. which the prints are removed from the print receiving receptacle.

6. A photographic print drying machine, comprising a casing, a print containing member mounted in the casing, air heating means positioned the casing, door in the casing giving access to the print containing member, a table underneath the door, a print receiving receptacle mounted on the table adjacent to the door, and means for conveying the hot air from the easing into the print receiving receptacle.

PERRY NO'UN