US1731603A

US1731603A - Drying apparatus

Info

Publication number: US1731603A
Application number: US114165A
Authority: US
Inventors: Wolf Otto Richard
Original assignee: Tribune Co
Current assignee: Tribune Co
Priority date: 1926-06-07
Filing date: 1926-06-07
Publication date: 1929-10-15
Anticipated expiration: 1946-10-15

Description

Oct. 15, 1929. o. R. WOLF 1,731,603

- DRYING APPARATUS Filed June '7. 1926 4Sheets-Sheet l W m H Oct. 15, 1929. o. R. WOLF 1,731,603

DRYING APPARATUS Filed June 7. 1926 4'Sheets-Sheet 2 iii; mjiil m1! W M! I!!! M W I k Oct. 15, 1929. Q, R, WOLF 1,731,603

DRYING APPARATUS Filed Juno 7. 1926 4 Sheets-Sheet 3 Oct. 15, 1929. o. R. WOLF DRYING APPARATUS Filed June 7. 1926 4 Sheets-Sheet 4 fig J Ii I In I Patented Oct. 15, 1929 UNITE STATES PATENT o OTI'O RICHARD WOLF, OF RIVER FOREST, ILLINOIS, ASSIGNORTO iT'IIE TRIBUNE GOM- IPANY, OF CHICAGO ILLINOIS,

A CORPORATION OF ILLINOIS DRYING APPARATUS Application filed June 7,

This invention relates to drying machines and has for its primary object the provision of a machine particularly adaptedfor drying pigment paper which is used for carbon prints in the process of printing in intaglio, or by means of coppercylinders in which the characters are formed beneath the surfacethrough the action of acid passing through the pigment paper which is applied to the cylinders, and which has been rendered variably resistant to acid by varied exposure to light conformable to the'picture or other characters to be printed.

In order that absolutely uniform results may be obtained, it-ishighly desirable-that the pigment paper (which, as ordinarily used, has a gelatin coating) should be uniformly dried after. being treated to render sensit ve to light, such sensitizing treatmentinvolving the passing of the sheets through aibath of appropriate solution, and my invention contemplates the provision of a machine adapted todry all parts of the sheets simultaneously and in controlled manner to the end that a high degree of uniformity mayresult.

Another object of the invention isthe provision of a machine suited to this purpose which is simple in construction and-operation and is capable of economical manufacture and use.

-Numerous other objects and advantages of the invention will be apparent as it is better understood from the following description, which, taken in connection with the accompanying drawings discloses preferred'embodiment thereof. I

Referring .to thedrawings, Figure 1 isanelevational View ofadryer unit consisting of two drums and associated driving mechanism mounted on a single frame;

Fig.2:is a top :planand horizontal sectional viewthereof;

' ;Fig.;3'-is an end elevation, looking toward thei'left in Fig. l; I

Fig. 4: is .anenlarged view of one of the s-ides of a drum, partially broken away and showing in detail the clamping devices for the ferrotype plates; and

1926. Serial No. 114,165.

Fig. 5 is a sectional view, taken substantially on the section lines 5-5 in Fig. 4 7

Upon said drawings, illustrating the :best manner in which Ihave thus far contemplated applying the principles of my invention, the reference character 11 indicates a base having uprights 12 at the opposite ends thereof supporting a bed 13 upon which theoperating elements of the machine are mounted. Standards 14, arising from "the opposite ends of said bed, support adjustable journal boxes 15, in which a'longitudina'l shaft 16 has bearings, a central standard 17 being in the present instance provided-on the bed .13 to support the shaft at the center, said upright being disposed between'two aligned rectangular frames or carriers .18, which areiden'tical in structure and of which, therefore, only one need be described .indetail. fSaid drums comprise end members 19, to which slats 21 are secured *in any desired'manner,said'end members and slats being made of wood, in the present embodiment, and metal plates=22 being secured exteriorly 'to the end members and in turn securedto the shaft 16,,w'hich, as shown, is divided centrally, as clearly indicated "inFig. 2 of the drawings.

A pulley 23 is-mounted on "theinner end of each shaft section 16 and is connected by means of a belt 24 with a pulley 25 on a short shaft 26, which is journaled in a bearing 27 and carriesa worm wheel 28 enclosed in a casing '29, said worm wheel being driven by a worm 31 carried on a shaft 32, jourrialed in bearings 33 in the frame anddispose'd at right angles to the shaft 26. Said'shaft 32 carries at its outer end-a pulley 33, driven by means of a belt 34, taking over a pulley 35 ona shaft/36 of amotor 37, having a frame part 38 secured to-the bed IS-bybolts 89, said motor being of any suitable or preferred type and the operation thereof being controllable by means of a suitably located switch (not shown).

Referring now in detail to Figs. 4 and 5, the means for mounting the pigment paper on the sides of the carrier will-be described. The sheet to be dried,whichisfindicated by the reference, character 41, is placed upon a ferrotypeplate 12 insuch'manneras'to cause it to adhere thereto and the plate is then arranged upon a side of the carrier, the latter being provided at the lower side with sheet metal guides 43 secured by screws 44 to an abutment 45 at the bottom of the carrier side, considering the latter as disposed in the position shown in the drawings. Said guides are of angular formation with respect to the face of the carrier to facilitate the positioning of the plates, which may be moved in endwise and toward the right, viewing Fig. 4, to position beneath the clamping devices, to be presently described, and then moved to the left to the final position shown. For the purpose of releasably attaching the plates and adhering sheets to the sides of the carrier, I employ clamping devices at the corners of each side of said carrier, comprising a fixed plate 46 secured to an edge block 47, a spring member 48 being secured between said blocks and projecting inwardly therefrom, said member having a rubber contact piece 49 secured to the outer end thereof by means of a rivet 51, said contact piece being cup-shaped and the inner end of said rivet being disposed in the depression 52 thereof. A cam' 53 is mounted on a cross pin 54 carried by ears 54 formed on the block 46, said cam being provided with a handle 55. When the handle 55 is arranged in the projecting position shown in full lines in Fig.

5, the cam permits the spring member 48 to assume the normal full line position shown in said Fig. 5 and the movement of said handle to the dotted line position after the ferrotype plate has been positioned causes said cam to move said spring member 48 inwardly to the dotted line position of Fig. 5, thereby clamping the ferrotype plate tigh ly to the side of the carrier. After the plates have thus been positioned, the motor may be started by pressing a button conveniently located and the carrier will begin to revolve, causing the different portions of the sheet to be subjected, during the rotation of the carrier, to all drying conditions to which any part thereof is subject, thus producing uniform and rapid drying, which may be has 'tened by the use of suitably located fans (not shown) if desired.

The frames or carriers 18 may be arranged in pairs, as shown in the drawings, or in any desired number and relationship and could, if desired, be mounted for operationv by a single source of power, separate driving means, however, being shown in the present instance and obviously providing for greater flexibility of use of the apparatus.

It is thought that the invention and many of its attendant advantages will be understood froin the foregoing description, and it will be apparent that various changes may be made in the form, construction and arrangement of the parts, without departing from the spirit and scope of the invention,

or sacrificing all of its material advantages, the form hereinbefore described being merely a preferred embodiment thereof.

I claim:

1. A machine for drying pigment paper used in the process of intaglio printing, comprising a horizontally disposed shaft, a carrier mounted on said shaft and adapted to carry sheets of said paper suitably mounted on ferrotype plates or other lightexcluding supports, means for securing a plurality of said plates independently to the exterior of said carrier without perforating the sheets, said means being adapted to press the plate against the carrier, and means for rotating said carrier.

2. A machine for drying pigment paper used in the process of intaglio printing, comprising a horizontally disposed shaft, a polygonal carrier mounted 011 said shaft and adapted to carry sheets of said paper suitably mounted on ferrotype plates or otherv light excluding supports, means for securing aplurality of said plates independently to the exterior of said carrier without perforating the sheets, said means being adapted to press the plates against the carrier, and means for rotating said carrier.

3. A machine for drying pigment paper used in the process of intaglio printing, comprising a rotatable carrier mounted on a horizontal axis, means for releasably securing a plurality of separate sheets of pigment paper to the exterior of a wall of said carrier without perforating the sheets and with the same exposed and in position to be uniformly affected by atmospheric conditions during rotation of the carrier, said means being adapted to press the plates against the carrier, and means for rotating the carrier.

4. A machine for drying pigment paper used in the process of intaglio printing; comprising a rotatable carrier mounted on a horizontal axis, means for releasably securlng sheets of pigment paper to a wall of said carrier with the sameexposed and in position to be uniformly affected by atmospheric conditions during rotation of the carrier, and means for rotating the carrier, said securing means comprising spring clamps and manually operable cams for moving the same into clamping position.

5. A machine for'drying pigment paper used inthe process of intaglio printing, comprising a rotatable carrier mounted on a horizontal axis, means for releasably securing sheets of pigment paper to a wall of said carrier with the same exposed and in position to be uniformly affected by atmospheric conditions during rotation of the carrier, and means for rotating the carrier, said securing means comprisingspring clamps arranged at the corners of said wall and normally spaced therefrom and manually operable cams for moving the same into clamping position.

6. A machine for drying pigment paper used in the process of intaglio printing, comprising a rectangular carrier mounted for r0- tation on a horizontal axis, controllable means for driving said carrier, and independent means for releasably and yieldingly clamping sheets of pigment paper to each of the four sides of said carrier, with each of said sheets arranged in fiat condition on one side only of the carrier, rotation of the carrier serving to subject the entire surface of each sheet to the same drying conditions thereby drying the same uniformly throughout and speeding the drying action by successively presenting each complete sheet to the perhaps differing atmospheric conditions prevailing at different points in the periphery of the carrier.

7. A machine for drying pigment paper used in the process of intaglio printing, comprising a horizontally disposed shaft, a carrier mounted on said shaft and adapted'to carry sheets of said paper suitably mounted on ferrotype plates or other light excluding supports, means for yieldingly clamping said plates With pigment paper thereon to the exterior of said carrier, means for rotating said carrier, and angular guides on said carrier for facilitating'the positioning of said plates.

8. A machine for drying pigment paper used in the process of intaglio printing, comprising a frame, a plurality of uprights on said frame, a horizontal shaft having bearings in said uprights, a polygonal carrier secured to said shaft, means for rotating the shaft, and means on each of the sides of said carrier for clamping thereto a separate sheet of said pigment paper suitably mounted on ferrotype plates or other light excluding supports, the movement of said sheets through the atmosphere during rotation of said carrier tending to hasten the drying action and to subject each sheet and all parts thereof to the same atmospheric conditions, thereby combination of a revoluble supporting structure and means for clamping ferrotype plates having pigment sheets applied thereto to an exterior part of said revoluble supporting structure, said means exerting pressure upon the pigment sheet to hold the same to the ferrotype plate When the sheet is dry.

11. In a machine for drying pigment paper used' in the process of intaglio printing, the combination of a revoluble sup-porting structure and means for clamping ferrotype plates having pigment sheet applied thereto to an exterior part of said revoluble supporting structure in manner to hold the pigment sheet to the ferrotype plate When the sheet is dry, said clamping means including a contact member of soft material adapted to be pressed against the pigment sheet Without damage to the latter.

12 In a machine for drying pigment paper used in the process of intaglio printing, the combination of a carrier providing exterior surface areas to Which plates carrying sheets of pigment paper in flat condition may be secured, means for clamping said plates to said carrier, said means serving also to clamp the sheet upon the plate to prevent buckling of the sheet, and means for rapidly rotating said carrier to dry the sheets.

In Witness whereof, I hereunto subscribe my name to this specification.

OTTO RICHARD WOLF.

drying the same uniformly throughout and in minimum time.

9. A machine for drying pigment paper used in the process of intaglio printing, comprising a frame, a plurality of uprights on said frame, a horizontal shaft. having bearings in said uprights, a polygonal carrier secured to said shaft, means comprising a motor mounted on said frame and driving connections for rotating the shaft, and means on each of the sides of said carrier for clamping thereto a separate sheet of said pigment paper suitably mounted on ferrotype plates or other light excluding supports, the movement of said sheets through the atmosphere during rotation of said drum tending to hasten the drying action and to subject each sheet and all parts thereof to the same atmospheric conditions, thereby drying the same uniformly throughout and in minimum time.

10. In a machine for drying pigment paper used in the process of intaglio printing, the