US893062A - Developing-machine. - Google Patents

Description

. No. 893,062. I PATBNTED JULY 14, 1908.

' s. EVANS.

DEVELOPING MACHINE.

-- APPLICATION I'ILE D AUG.5,1907.

Azwlwey the art, that is, the

SAMUEL EVANS, OF CHICAGO, ILLINOIS.

DEV ELOPING-MACHINE Specification of Letters Patent.

Patented July 14., 1908.

' Application filed August 5, 1907. Serial No. 387,146.

To all whom it may concern:

Be it known that I, SAMUEL EVANS, a subj ect of the King of Great Britain, and a resident of the city of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Im rovements in Developing-Machines, of whlch the following, when taken in connection with the drawings accompanying and forming a part hereof, is a full and complete description sufficient to enable those skilled in the art to which it pertains to understand, make, and use the same.

This machinerelates to the process of obtaining by means of photography, sand blast resist coatings on glass andother substances. And the object of the invention is to obtain a machine by the use whereof sheets of glass which have, on one side thereof been provided with a bi-chromated coating of glue or gelatin and exposed to light acting thereon through a negative placed in front thereof, may be developed, as it is termed in arts of such coating which have not been ed by the action of light may be washed away, thereby leaving upon the glass a protective sand blast coating corresponding with the negative used.

A further object of the invention is to obtain a developing machine, of the character named, by means of which the sheets of glass tobe developed may be placed in and taken from the nfachine without wetting the hands of the operator of such machine.

A further object of the invention is to obtain a machine of the kind named which will be easy to operate, not expensive, and not liable to get out of order or repair.

In the drawing referred to Figure 1 'is an elevation of amachine embodying this invention with portions of the side frame broken away to expose operative parts of the machine to view. Fig. 2 is a vertical sectional view on line 22 of Fig. 1, viewed in the direction indicated by the arrows. Fig. 3 is a top plan view ofa machine embodying this invention. Fig. 4 is a sectional view on line 4-4 of Fig. 1, viewed in the direction indicated by the arrow. Fig. 5 is a sectional view on line 55 of Fig. 1 viewed in the direction indicated by the arrow.

A reference letter applied to designate a given art is used to indicate such part ings wherever the same appears.

A, A, is the frame of the machine, and a, a, are 1posts suplporting frame A, A.

B, are s afts rotatably mounted in journal bearings C, C, respectively.

D is an apron comprising a plurality of flexible belts a, d, with cross slats d, (1, secured thereto. The belts d, d, extend around the wheels E, E. Wheel E is rigidly secured to the shaft B to turn with such shaft and wheel E is rotatably mounted to turn on the shaft B, or, if preferred, to turn with such shaft which in turn is rotatably mounted in the bearing C. To maintain the belt or a ron D taut, the bearing C is made longitudinally adjustable by mounting it on the screw F, in the ordinary way of mounting adjustable bearings.

G is an inclined table underneath apron D for a portion of the length of such apron.

H is a water receptacle. Table G is in position so that cross slats d passing thereover in the movement of the apron, are so close thereto that water (W) flowing from receptacle H will flow over the slats.

I is a collecting pan or trough, discharging into tank J. Pan I is placed to receive the flow of water from inclined table G and deliver the same into tank J.

J is a steam or hot water coil in tank 'J, and is a discharge pipe from tank J.

K is a pump. Pipe k delivers into the pump K from tank J and by means of such pump the water. flowing into tank J is raised when the pump is in operation, (through pipe is) and dischar ed into receptacle H.

L is an inclined ta le on which water from receptacle H flows to break the fall thereof before it flows onto a sheet of glass (M), which is on the a ron D and being carried in the direction indicated by the arrow Y.

M is a sheet of glass on apron D.

N-is a water receptacle.

n is a water supply pipe arranged to discharge into receptacle N. Pipe-n 1s connected to any suitable source of water supply; I have used water from the city supply pipes.

O is a trough underneath apron D to receive water which has flowed from tank N.

O is a discharge pipe from trough 0, through which water in such trough may flow to waste.

P is an air receptacle and p isthe air discharge outlet therefrom, (see Fig. 5). throug out the several figures of the draw- 1 through pipe Q.

. tates the several counter shafts S, S, S

R is a motor used to actuate the pump K by means of belt 1.

R is a motor actuating the blower Q by means of belt 1" and It is a motor used to actuate the belt D. The relative speed of such motor R (where the same is an electric motor) and apron D is such as necessi- I (Fig. 1) with pulleys T, T, t, and T thereon, with the several belts t, t, t, and the intermeshing gears U, U. Gear U is rigidly secured to shaft S and U is rigidly secured to shaft B. The motor R is supplied with a driving pulley 1" and one of the belts t extends over such driving pulley 1* and over pulley T, another one of the belts 25 extends over the pulley t and T, and the remaining belt t extends over pulleys t and T. The slow speed of the apron D as compared with the high speed of the motor R is thus obtained by me but I do not, of course, limit myself to this particular way of reducing the speed of the motor to the desired speed of the apron.

The operation of this developing machine is ;-A sheet of glass which has been prop erly prepared and exposed to light (with a negative placed between it and such light) is placed on the carrier formed by apron D, as sheet M, and is carried by the slowly moving apron towards the other and upper end of the carrier formed by such apron, and as such sheet of glass moves over the inclined table G the water flowin down the inclined table and over the cross s lats d, (1 flows over such sheet of glass. This water is preferably warmed to about 112 degrees Fahrenheit, and the sheet of glass is subjected thereto until after it has been carried under the receptacle I-I, (say from three to five minutes). The sheet of glass is next carried by such carrier over the trough or collecting pan 0 and underneath the receptacle N, receiving in its movement a stream of water at say, climatic temperature, from such receptacle N, and after passing under such receptacle N the sheet of glass is carried under the air receptacle Pand is partially dried by air directed thereonto from the air discharge outlet 19. By the time the sheet of glass has been carried under the air receptacle P it will have been developed and must be taken from the carrier formed by the apron D and placed by the operator of the machine in a suitable place and position to dry.

A number of sheets of glass are designed to be simultaneously on the carrier of the machine, in course of developing the movement of the apron D being continuous while the machine is in operation.

By this machine, operating as described I am able to save the labor of several men; to

give the exact time required for the proper washing out or developing of a sheet of glass; to determine the temperature of the warmed water, to obviate the use of skilled labor in developing the plates, and to do away with the necessity of wiping the surface of the plates to remove any surplus water thereon; to lessen the breakage of glass while in course of washing or developing; to lessen the number of spoiled plates from over or under washing; and to largely increase the out put of developed plates suitable for use in the sand blast process which can be made on a given floor space.

Having thus described. my invention and. its operation what I claim is new and desire to secure by Letters Patent is,

1. The combination of an apron provided with openings therethrough, rotatable shafts one thereof in a plane higher than the other, wheels on such shafts on which wheels the apron is mounted, means to actuate one of the shafts and to move the apron, an in clined table underneath the apron, such table being of less length than the distance between the shafts, means to supply warmed. water to the apron on the inclinedv table adjacent to the upper end of such inclined. table, and means to collect the water discharged from the lower end of the table.

2. The combination of an apron provided with openings therethrough, rotatable shafts mounted on a frame with one of such shafts in a higher plane than the other, wheels on such shafts on which wheels the apron is mounted, means to actuate one of the shafts to move the apron, an inclined table beneath. the apron, such table being of less length, than the distance between the shafts, means to supply warmed water to the apron on the inclined table adjacent to the upper end of such inclined table, means to collect the water discharged from the lower end of the table, and means to supply additional water to the apron at a point higher than the upper end of the inclined table, means to collect the additional water after it has flowed. through the apron and means to discharge the same, and means to subsequently direct a flow of air on the apron.

3. The combination of an apron comprising a flexible belt and connecting slats, a frame, shafts rotatably mounted on the frame, one of such shafts in a plane higher than the other, wheels on. such shafts on which wheels the flexible belts of the apron are mounted, means to actuate one of the shafts to move the apron, an inclined table underneath the apron, such table being of less length than the distance between the shafts, means to supply warmed water to the apron 011 the inclined table adjacent to the upper end of such inclined table, and means to collect the water discharged from the lower end of the table.

4. An apron arranged to receive sheets of glass and comprising flexible belts and. connecting slats, means to actuate the apron, an

inclined table underneath and adjacent to the apron for a portion of the length of such apron, a collectlng pan underneath the inclined table and underneath the apron, a tank underneath the collecting pan, such tank arranged to receive liquid discharged from the collecting an, means to warm the liquid contents of t e tank, a liquid receptacle above the apron, means to transfer liquid from the tank to the receptacle above the apron and to discharge such liquid onto the apron and inclined table, and means to discharge additional liquid onto the apron with means to collect such water and discharge the same to Waste,

5, The combination of an apron provided with openings therethrough, rotatable shafts mounted on a frame with one of such shafts in a higher plane than the other, wheels on such shafts on which wheels the apron is mounted, means to actuate one of the shafts to move the apron, an inclined table beneath the apron, such table being of less length than the distance between the shafts, a tank,

a coil in the tank, arranged to contain heat-' ing fluid, a passage way between the tanks and a pump interposed in such passage way.

6. The combination of an apron provided with openings therethrough, rotatable shafts mounted on a frame with one of such shafts in a higher plane than the other, wheels on such shafts on which wheels the apron is mounted, means to actuate one of the shafts to move the apron, an inclined table underneath the apron, such table being of less length than the distance between the shafts, a tank, a coil in the tank, arranged to contain heating fluid, a tank above the apron adjacent to the u per end of such inclined table, means to coll ect the water dischar ed from the lower end of the table and de iver the same in the first named tank, a connecting passage way between the tanks and a pump interposed in such assage way, and means to supply additiona water to the apron at a point higher than the up er end of the inclined table, means to col ect the additional water after it has flowed through the apron and means to discharge the same, and means to subsequently direct a flow of air on th apron.

7. The combination of an apron compris ing a flexible belt and connectin slats, a frame, shafts rotatably mounted on t eframe, one of such shafts being in a plane higher than the other, wheels on such shafts on which wheels the flexible belts of the a ron are mounted, means to actuate one of t e shafts to move the apron, an inclined table underneath the apron, such table being of less length than the distance between the shafts,

a Water receptacle to supply warmed Water to the apron on the inclined table adjacent to the u er end of such inclined table, means to co, ect the water discharged from the lower end of the table, an additional water rece tacle above the apron, and means to disc arge air u on the apron.

8. The com ination of an apron comprising a flexible belt and connectin slats, a frame, shafts rotatably mounte on the frame, one of such shafts being in a lane higher than the other wheels on such s afts on which wheels the flexible belts of the apron are mounted, means to actuate one of the shafts to move the apron, an inclined table underneath the apron, such table being of less length than the distance between the shafts, a water receptacle to supply water to the apron on the inclined table adjacent to the up er end of such inclined table, means to 'coll ect the water discharged from the lower end of the table, means to warm such water and means to return it to the water receptacle, an additional water receptacle above the apron, means to su ply water to such additional water receptac e, and means to discharge air upon the apron.

9. The combination of an apron comprisin'g flexible belts and slats, a frame, rotatable shafts mounted on the frame with one of such shafts in a higher plane than the other, wheels on such shafts on which wheels the flexible belts of the apron are mounted, means to actuate one of the shafts to move the apron, an inclined table underneath the a ron,-such table bein of less length than t e distance between 51c shafts, a tank, a coil in'the tank, arranged to contain heating fluid, a water receptacle above the a ron adjacent to the up er end of such inc ined table, means to col ect the water discharged the same in the tank, a connecting passage tacle and a pump interposed in such passage way, an additional water receptacle above the apron at a point hi her than the upper end of the inclined table, means to supply Water to the additional receptacle and means to collectthe additional water after it has flowed through the apron, and means to discharge the same, and means to direct a flow of air on the apron and on a sheet of glass on the apron after such sheet of glass has been earned by the apron from under the additional water receptacle.

SAMUEL EVANS.

In the presence of- CHARLES TURNER BROWN, (301m A. ADAMS.

way between the tank and the water recepfrom the lower end of the table and deliver

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