US1546280A - Process and apparatus for treating inked documents - Google Patents

Description

July 14, 1925.

E. BELIN PROCESS AND APPARATUS FOR TREATING INKED DOCUMENTS Filed Nov. 20, 1923 2 Sheets-Sheet l July 14, 1925.

4 E. BELIN PROCESS AND APPARATUS FOR TREATING INKED DOCUMENTS Fzled Nov. 20, 1923 2 Sheets-Sheet 2 Patented July 14, 1925.

" U ITE STATEISPATETNT, QFIFIICE,

ZEDOUARD BELIN, 01F PARIS, IERALIBTCIFJv rnoonss AND. AIPPARATUS FOB 'rREAiriNG'rNKnn DOCUMENTS.

Application fiIed November 20, 1923. 7 Serial 1V0. 695,916. I

T 0 all whom it may concern:

Be it knownthat I, EDOUARD BELiN, a citizen of the Republic of France, residing at Rueil, 272 Avenue-de Paris, Seine et Oise, Paris, France, have invented certain new and useful Improvements in Processes and Apparatus for Treating Inked Documents, of which the following is a specification. 7

In order that a written document would be suitable for transmission by telestereographic apparatus, the characters and lines upon it should be formed in clean and hard relief, but on the that the ink used'should be fluid and capable of drying quickly.

With this ob 'ect an ink is made by incorporating with ordinary ink sugar or gum in aqueous solutionand a. highly hygroscopic body, for example about 30 grams sugar and. 1 gram of magnesium of calcium chloride or the like in 507cc. of water.

Such ink is as fluid as ordinary ink and can beused for writing without the special care which is apt to change the character istic of the writing of the individual;which is to be recognized such ink moreover. dries as quickly as any ordinary ink. I

The characters are transformed into relief by moistening the ink, sprinklingthe-document with powdered resin or gum which is retained by the ink, and heating the document up to the melting point-of theresin so that on cooling the characters will be lacquered, as it were, in'relief The char acters in relief thus produced willbe'as sharply defined as the original characters, and will not crumble under the exploring points of the telestereographic apparatus so that they can be transmitted and be reproduced "as autographic writing.

Thelacquering should be effected automatically andquickly and always under. the same conditions. For this'purpose the machine illustrated in the accompanying draw-. ing is employed.

In the drawing Figure 1 shows the rehumidification compartment A and the sprinkling compartment 13; while Figure),- which is a, continuation of Figure 1, shows the compartment C-for removing the superfluous powder and the lacquering. compartment D. Figure 3 is a other hand it is. desirablewith exactitudediagrammatic plan showing one means for controlling the-magnet circu t.

The documents to be treated are supported in rigid frames which automatically and successively pass through the .apparatus from end to end.' These frames 35 may and provided with a conducting surface, as

shown in Figure 3, or if-preferred the frame may be of conducting materiah j A frame is introduced into compartment A through a window orslide land is pushed, 6

sired point by a small motor 6, 0 inany 7 other suitable manner.

7 is a tray containing water which is heated' many suitable manner, for'example by electric resistances'8.

The speed at which band 2 is its adhesive properties.

Band 2 maybe formed of largeane'sh fabrictofallow the free passage of steam which thus completely, surrounds the docu j ment. 4

On leaving band 2 the frameenterscom I partment' B, being received by a'conveyerj band 9. In its passage, from one bandto the other the frame closes an electriccircuit' by which an electro magnet 10 is energize so that a pin wheel 11 rotated from apulley 12 on shaft 5'comes beneath a projection 13 on a x15. iProjectionj 13 will thus be acted on by the pins so long as the frame is 7 upon band 9; the frame'on passing out of compartment B breaks the circuitfo'f magnet 10, thus allowing a spring ltto remove the; 95

pin wheel 11 clear of projection;v 13.1,Tlie

box 15, whichis suspendedfrom springs 16 andhas aperforated bottom 17 ,jcontains 1 pulverized resin or a fusible gum'. The control of the circuitt magnet 10 may be effected by any desired, electrical connection, for instance the frame: 35 carrying the document maybe provided with a contacting strip 36 disposed .to' be engaged by the circuit contacts 37 when, the

frame passes onto the conveyer band 9 and;

formedof electrical non-conducting materiat 0 v driven and 75 the degree to-which the water is heated are 7 so adjusted that the ink in the document is completely rehumidified and thus recovers the electro 1 when the frame leaves this band the contacts break the circuit to the magnet. r

The shaking of box by the action of the pin wheel causes the powder to be sprinkled over the document and some of the powder will adhere to themoist ink.

The band 9 is driven by means of a wheel 19 meshing with a worm 18 on the shaft 5.

Referring to Figure 2, the sheet is cleaned in compartment G, that is, the superfluous powder is shakenofi so that theonly powder 7. V

ments, the combination of means for'steam 1 retained is that which adheres to the ink;

The frame is deliverediby' band 9' onto a conveyer band 20' which passes over three pulleys 21, 21". and 22 and so takes a very steep path. On the underside of this band arelngs 23 which-are subjected to repeated blows from arms 24 mountedon oneor more drums 25 also driven by shaft 5.

p The band 20 is not stretched tight and so the, blows against its underside will cause the powder to be shaken off the document.

This powder may be collected in a tray at the bottomfof compartment to the box15. c v,

Thedocument will arrive at the end of compartment 1G with the still moist ink C and returned I saturated with powdered'resin, but the remaining portions of the document will be free from resm. .c I

The frame now passes from conveyer band 20' onto conveyer band 26 in compartment D for lacquering. Band -26 is driven by a worm wheel 27 rotated fromshaft 5 at a suitable speed. Heating ispreferablyfet fected electrically'by resistances 28 so as to avoid any dangerof carbonizat-ion, and in order that the heating may be progressive and adjustablethe resistance or resistances 28 are mounted upon a grid 29 whose angle relatively to the plane of the band 26 may be adjusted by, pivot ng one end of the grid and moving its other end in a slide by a handle 30; Aspring 31 and roller'may be used to tensionor take up slack in the conink of hydroscopic character, subjecting sa1d method of driving the conveyor bands, the

typeof conveyer bands employed, and the heating means employed in the humidification and enameling compartments. 7 1

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is:

L A. process for producing documents ing the document, means for sprinkling powder thereon, means for shaking off the superfluous powder, means for heating the document, and means for conveying the document past the-various stantially as described.

3; In a machine for treatinginked documents, a conveyer band,a spring suspended powder box having a perforated bottom, and

apparatus, submeans for shaking the box during the passage of adocument upon said band. p

4. A mach1ne according to clann' 2, in which the superfluous powder is removed by means of lugs on the rotating armshit-f ting a conveyer band on which the document is supported. v

5. A machineaccordingto claim 2, in

V which heat is applied to the document by means'of electrical resistances carried'bya 7 frame which can be adjusted with respect ton band which supports the documents."

6. The process of producing a document for telestereoscopic transmission consisting .inetl ecting an impression thereon with an ink ,of'h'ydroscopic character, depositing a powdered substance upon the'inked surface, removing suchsubstance which does not ad here to the inked lines, and subjecting the powdered lines to a heating medium to solidify the powder. I i

'7QThe process of producing a document for telestereoscopic' transmission consisting in effecting an impression thereon with an document toa humidifying action to moisten ment including a steaming pan, means for. siftlng a powderupon the document H101S- tened thereby, means for removing the excess powder compris ng an nclined belt and knocker cooperating therewith, and a heating compartment including a carrier belt and a heating element cooperating there-' with.

10. In a machine for treating documents, the combination of a humidii'ying compartment including a steaming pan, means for sitting a powder upon the document moistened thereby, means for removing the excess powder comprising an inclined belt and 10 knocker cooperating therewith, a heating compartment including a carrier belt and a heating element cooperating therewith, and means for adjusting said element relative to the carrier belt.

EDOUARD BELIN.

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