US1256290A

US1256290A - Print-developing machine.

Info

Publication number: US1256290A
Application number: US16832917A
Authority: US
Inventors: Harry L Blondes
Original assignee: Individual
Current assignee: Individual
Priority date: 1917-05-14
Filing date: 1917-05-14
Publication date: 1918-02-12
Anticipated expiration: 1935-02-12

Description

Il. L. BLQN'DES.

PRINT DEVELOPING MACHINE..

APPucMlou FILED HMI-1.1911.

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PRINT DEVELOPING MACHINE.

APPLlcAroN flu-:o MAYH. 19|?.

im Em m r w P M W HARRY L. BLONDES, 0F CLEVELAND, OHIO.

vPRIN'J3-DEVELOPING- MACHINE.

Specification of Letters Patent.

Patented Feb. 12, 1918.

Application led May 14, 1917. Serial No. 168,329.

To all 'whom t may concern:

Be it known that I, HARRY L. BLONDES, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented a certain new and useful Improvement in Print-Developing Machines, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings. j

This invention pertains to devices for treating or developing continuous strips of sensitized paper, such as photograph or blueprint paper.

The essential object of this invention is to provide a simple efficient machine for treating such strips to one or more baths, then drying and ironing the same to deliver the strip in smooth dry condition and properlydeveloped so that it is no longer sensitive to light. Heretofore it has been customary to feed a strip of sensitized paper through a blueprinting machine to which a developing device is attached and through which the strip is subsequently fed to bring out the print. One of the difficulties encountered in such machines is the starting of the strip through the machine which is accomplished usually by attaching the leader strip, which is carefully threaded through the machine, or by feedin the end of the strip to be treated to. t e machine. Both of these methods are wasteful of material and time. A more specific object of my invention is to provide a machine which may coact with means attached to the end of the printed strip for causing the strip to pass entirely through the machine and permitting the printing to be begun at the foremost end of the strip. p

The above and other objects will becomeO apparent in the following description, which refers to the drawings, and the essential characteristics of my invention are summarized in the claims.

In the drawings, Figure 1 is a side elevation of my machine 5 Fig. 2 is a rear elevation of the same; Fig. 3 is a `vertical transverse section through the machine; Fig. 4 is a transverse sectional plan taken substantially on the line 4--4 of Fig. 1; Fig. 5 is an axial section through the. drying and ironing drum; Fig. 6 is a perspective detail of the rear rod adapted to be attached to the forward edge of the strip and cause it to progress through the machine; Fig. 7 isa sectional side elevation of the winding mechanism.

Describing the parts by reference characters, 1 and 2 are side frame members shown as made up of uprights and transverse con? necting braces, illustrated at 3 and 4. The side frame members carry bearin s for rollers and support the feeding liquld tanks to be described.

The machine is used by mounting the same adjacent a blueprinting machine adapted to progress a sensitized strip therethrough continuously and the tracings orother negatives vbeing placed thereon and removed therefrom after the printing. Such a strip is indicated at 5 as coming from the blueprint machine to a deflector orv guideboardv 6 from which the strip passes downwardly at 5a into a tank 7 containing a developing and fixing liquid. An associated tank 8 may contain a finishing liquid and the strip passes therethrough as indicated at 5'J and then upwardly as at 5 to drying and ironing means to be hereinafter described. The tanks 7 and 8 are shown as formed by two partially cylindrical members joined at 9 and intermediate the tank and closed at their ends by suitable end walls 10. These end walls are secured by any suitable means to cross braces 11 of the frame members 1 and 2. Within the tanks 7 and 8 may be provided

guide rollers

12 and 13 suspended in the tanks by depending hangers 14 and 15 loosely embracing

vthe shafts

27 and 28. These rollers are for the purpose of guiding the strip and causing it to pass through the body of liquid contained in each tank.

The strip is startedthrough the machine i by means of a clamping rod adapted to grip the end ofthe strip. This rod may be of any suitable construction. For example, I have shown a. rod somewhat oval in cross section and comprising two halves 20 and 21 hinged together at one edge by means of a hinge rod 22, while projections 23 on the member 20 may pick the paper preventing it slipping therefrom. At each end of one of these members may be provided a leaf-spring 25 adapted to extend over and engage the edge of the other member to hold them in engagement with the strip.

Such a leader rod may be attached to the end of the strip and strip started through the blueprint developing machine. The Hat. ness of the rod prevents it interfering with printing close to `the `same and also renders the end of the rod. The rod reaches the` roller 9a between the tanks and falls by gravity` into the path of the star-wheels and is held upwardly out. of the tank 8. The star-

Wheels

26 and 28 are mounted rigidly on

shafts

27 and 29 respectively which have .their bearing boxes 30 on the cross members 11.

When the rod is carried upwardly by the projections of the wheels 28 it is brought into .the path of hooked projections 32 on parallel chains 33 running over sprockets 34 at their lower ends and 35 at their upper ends. The sprockets 34 are mounted on a shaft 36 having bearings 37 on the cross members 16, while the sprockets 35 are rigid on a shaft 38 having a bearing 39 on upwardly extending members of the side frames. rllhese chains are separated so that the strip may pass between them with the guiding rod having its ends engaging the hooks of the chains. As the guiding rod is brought over the tops of the sprockets 35 it falls downwardly onto a belt 40 running under a heating drum 42 mounted on a shaft 43 having bearings in cross members 44. At each side of the shaft 43 are rollers 45 and 46 having bearings on the member 44 and on an extension 44a, whereby the belt 40 may pass downwardly over the roller 45 beneath the drum 42 over the roller 46 and return to the roller 45. This belt has sufiicicnt elasticity to permit the guiding rod to pass between it and the drum. Upon the guiding rod passing off from the roller 46, the strip may be removed and the end of the paper started to wind on a winding roller 48 mounted in bearings on the members 44a.

The heating roller ,is shown in detail in Fig. 5 and from this view it will be seen' that the shaft 43 is made hollow and provided with radial openings 50 communicating with the interior of the drum 42, which has its end walls embracing the shaft. A

pipe 52 is connected through a joint 53 with a nipple 54 threaded into the shaft 43, whereby the shaft may rotate with relation to the pipe 52 by reason of the joint 53. Thus hot air may'be forced through the pipe 52 by any suitable means into the shaft 43 and outwardly into the drum 42, heating the latter, the air being permitted to vent through openings 55 in the end Walls of the drum. The .strip to be treated passingbetween .the roller and the belt is dried and ironed smooth.

- If the treatment requires more than two baths of liquid an additional 'tank may be provided by merely extending the metal forming the tanks 7 and 8 to provide another trough. However, ordinarily in treating blueprints to which this machme is particularly applicable only one or two kinds of treating liquid are used-usually potash (in the tank 7 and water (in the tank 8). However, if a final wash is desired, such as a water wash, a tube 60 may be mounted in front of the upwardly extending strip 5, the tube being provided with openings to project streams of water 61 onto the paper at a point where the water or other liquid will return to the tank 8. Water is led to this pipe through a tube 62 controlled by a suitable valve.

From the foregoing description it will be seen that my machine may be used to develop continuous strips of sensitized paper or like material whether or not it is associated with a printing machine. The machine provides for using all of the strip and leads the strip through from beginning and winds the same into a roll indicated at 5d around the shaft 48. The winding device is shown in detail in Fig. 7, and consists primarily of a pulley 71 loose on the shaft 48. pulley 71 is held against the friction disk 74 rigid on the shaft 48, by means of the spring 73, held at one end by the collar 72. The tension of this spring is adjusted to keep the paper taut and as the winding roll 5d increases in diameter the slippage between the pulley 71 and disk 74 increases in direct proportion thereto. The star-

wheels

26 and 28 are preferably driven simultaneously with the parallel chains 33 by means of the sprocket chain 75 and hand crank 76 mounted on the shaft 27.

The drum 42 and winding roller 48 are shown as driven by a connection with a blueprinting machine as by a belt 65 leading to a pulley 66 on the shaft 43. The

shafts

43 and 48 being driven by suitable belts indicated at 68 and running over pulleys 70 and 71 of these

shafts

43 and 48 respectively. The machine is simple, convenient and. not liable to get out of order.

Having thus described my invention, what lf claim is: l

1. In a device for treating a flexible strip, the combination of an end stiffener therefor projecting past the sides of the strip, a tank for containing treating liquid, separated rotary members engaging the stiffener to propel the strip through the tank, a winding roller, and means for carrying the strip thereto.

2. A machine adapted for fixing a sensitized strip, comprising a. guidewav for the strip, a tank for containing said fixing liquid a stiffener on the strip. separated rotary members in said tank adapted to engage stiffener on the strip, a conveyer adapted to engage the stifi'ener and to cause the strip to be drawn through the liquid, and a winding means for continuing the progress of the strip.

3. A machine for progressively treating a continuous strip comprising separated tanks for containing treating liquid, a winding means, rollers in the tanks for holding thel .said members in a direction to feed the stiiener and lead the strip therethrough.

5. A machine for rogressively treating printed sensitized strlps including adjacent tanks for containing different treating liquids, a conveyer comprising separated flexl: ble members, a windingmeans, a stiifener for the end of the strip, separated rotary' members projecting into said tanks and adapted to engage said stlifener, means for rotating said members in a direction to feed the stiiiener and lead the strip therethrough, said iexible member having projections engaging the stiffener, and means for driving the conveyer and the rotary members at the same time, whereby the strip may be fed through the machine and brought to the winding means;

.6. The combination of a pair of adjacent tanks for containing treating liquid, said tanks being partially cylindrical, separated rotary members having outward projections, a stiener for thc end of a rinted strip, means for rotating said mem ers to.

cause the stiiener to pass through the tanks, a conveyer for Acarrying the stifener away from the tanks, and a driving means to which the conveyer delivers the strip.

7. A machine for treating continuous rinted strips including tanks for containlng treating liquids, a stitlcner for the strip, a guideway leading to the first tank, rotary members having radial projections,I means carrying said rotary members so that the projections may be causedto pass the stiffener through the tanks successively, a conveyer having hooks adapted to engage the stiffener and carry the strip away from the tanks, and means for winding up the strip. 8. A machine for 'treating continuous rinted strips including tanks for treating liquids, a stiii'ener for containing the strip, a guideway leadingl to the first tank, rotary members having radial projections, means carrying said rotary members so that the projections may be caused to pass the stiiener throughvthe tanks successively, guiding rollers beneath which the strip is passed in the tanks, and a winding mechamsm to which the strip is delivered.

9. The 4combination with adjacent tanks for containing treating liquid, guides in said tanks to lead a printed strip into the liquid, means for feeding a strip vwith a stiifener-thereon through-the tanks successively, a conveyer for leading the strip away from the tanks, and manually operated means for driving the rotary members and the conveyer.

10. A machine for continuously treating a blueprint strip comprising a treating tank,

a guidev roller therein, means for feeding` the strip through the tank beneath said roller, a conveyer leading the strip u'pwardly from the tank, a drum to which said conveyer delivers the strip, a belt beneath the drum for causing the strip to contact with the drum, a winding mechanism, said belt leading the strip to the winding mechanism. power driven means for .actuating the winding mechanism, and handA operated means for actuating the feedlng devices and conveyer.

11. A machine for continuously treating a printed strip comprising a treating tank, a guide roller therein. means for feeding the strip through the tank beneath said roller, a convever leading the strip upwardly from the tank, and a winding mechanism for the strip.

12. The combination with adjacent tanks for treating liquid. guides in said tanks to lead a printed strip intothe liquid, means for feeding a leading stiener through the tanks successively, a conveyer for leading the strip away from the tanks. means for driving the rotary members and the conveyer, and a spraying tube for bringing water onto the strip as it leaves the tanks.

13. Ina device of the character described, the combination. with a plurality of tanks adapted to contain treating liquid, of means for guiding a strip successively through such tanks, and means for winding up the signature.

HARRY L. BLONDES.