US760652A - Copying-press. - Google Patents

Description

. No.'7.60, 652 .(PAIBNTBDMATZIi,1904. H. P. SEARLES.

COPYING PRESS. APPLICATION n Lnn imv 12 1903 1 MODEL.

warms co, mom-L T T0 al whom it may concern: n

Be it known that LIHE RY F. SEARLEs, a. citizen'of the United States, residing at Hopedjale, in the county .Of Worcester and State of Massachusetts, haveinvented an Improvement .inCopyingPress es, of which the following UNIT D STATES Patented May 24, 1904.

PATENT OFFICE.

'. DRAPER COMPANY, OF PORTLAND,

SACHUSETTS.

MAINE, AND HOPEDALE, MAS- COPYING-PRESS.

- Y SPECIFICATION forming part bf Letters Patent 110 760,652, dated May 24, 1904.

Application filed November 12,1903. Serial no. 180.846. (N0 model.)

description, in connectionwith the accompanying drawings, is a, specification, like charactors on the drawings representing like parts. This invention has for its object the production ofa novel-and eificient apparatus-for making press-copies of letters orother docu{- ments which are. written, printed, or typewritten in a copying medium; and my invention relates more particularly to that type of copying apparatus wherein the 'copyis made on an automatically-dampened sheet in web form.) In such apparatus thecopy-taking webis dampened and moved longitudinally between a rotatable impression-roll or-platen and a pressure-roll, the document to be copied .being passed between the pressure-roll and platen "with its face incontact with the dampened web. Subsequently the latter may be cut into short sheets for convenience in filingaway. This type of copying-press makes one copy at a t ime.-v 7 V I fMy present invention is so constructed'and arranged that two copies are made of an original each time the latter. is passed through the I press, so that two separate and distinct records may be kept of all documents copied. To this end a transfer sheet or web and a record sheetor web are .used, the impression from the original being first made upon the transfer-web as a negative,'and the recordweb is then brought intocontact with such negative impression under pressure to receive a positive copy thereof." The record-web is preferably stout paper suitable for filing and capable of standing considerable handling for purposes of reference, while the transfer-Web is made of tissue or other transparent thin paper, so that the impression copy can be read through it and used as a second permanent record.

The various novel features of my invention will be fully described in the subjoined speciing azcopy from the original document.

- fication, andparticularly'pointed outin the following claims.

Figure 1 is-a side elevation of a copyingpress embodying one form of my present invention and showing the actuating means therefor. Fig; Qis a central longitudinal sectional view thereof. Fig. 3 is a diagrammatic view showing the paths of movement of the transfer and record webs through the press,

ferred to.

are rigidlysecured to a base A, having an opening A Fig. 2, to constitute the frame.

'The' sides are vertically slotted at a to receive bearing-blocks b for the journals 6* of a roll B, termed the primarypressureeroll. Each slot has a coverplate 0;, provided with a threaded hole to receive a pressure-screw 5, bearing against the top of the adjacent bearing-block b to regulate the pressure between 'the roll B and theplate'n-rollto be described.

A tie-rod a connects the high portions of the sides to impart requisite rigidity thereto. The

impression or platen roll P is located below "the primary roll B and in contact therewith,

its journals p being extended through bearingholes in the sidesA, one of the journals being prolongedand having secured to it outside the-frame an internal annular gearp", Fig. 1.

Thev rolls B and P have a yielding surface as, for instance, india-ru'bber-so that the portions thereof in contactwill be somewhat flattened to increase the action thereof in mak- A feed table or shelf f is' supported on and between the sides-A opposite and adjacent the nip of rollsB and P, Fig. 2, to support the and Fig- 4 is an. enlarged detail to be reoriginal document I) as'it is fed to the rolls. On the opposite side of the latter a delivery table or'shelf f is mounted, its inner end being downcurved at f and to closely approach the periphery of the impression-roll P to receive the'document D after it has passed between the rolls.

Below and at the left of the roll P a water-tank M is supported on the base A, and arms on are upturned at their lower ends to support a guide-roll m slightly above the bottom of the tank, the upper ends of the arms being hooked at m to engage the end of the tank.

Brackets A on the sides A sustain journals 2? of a roll T of thin tissue or other suitable transparent paper, the free end of which web is led over the end of the tank M and under the roll m to immerse it in the water, and I term this the transfer web or sheet. From the tank the web 6 is carried around the impression-roll P and between it and the primary pressure-roll B; but it is first subjected to the squeezing action of a wringer-roll W, held against roll P by screws 6, extended through threaded holes in lateral ears'a, crossing horizontal guide-slots a in the sides. Bearingblocks a are mounted in the slots and support the journals 1/: of the roll W, the inner ends of the pressure-screw 6 bearing against said blocksto regulate the pressure between the,

platen-roll and the wringer-roll WV. As the wet web If passes between such rolls the surplus moisture is squeezed out of it, so that it is properly damp when it moves under the primary pressure-roll B. When the document D to be copied is fed face down between rolls B and P, its face is pressed against the dampened transferwveb z, and a reverse or negative copy is made thereon. The document D is drawn through by rotation of the impression or platen roll P and delivered upon the table f, while the impressed transfer-web continues around the platen-roll and between it and a secondary pressure-roll C, Fig. 2, and thence down through the opening A in the base A. Referring to Fig. 1, the journals 0 of the roll 0 extend loosely through large holes a in the sides (see dotted lines, Figs. 1 and 4) and enter upright bearing-bars 0. Lugs a project from the sides above and below the roll C and have threaded holes for adjusting-screws 8, each having an annular groove 9, (see Fig. 4,) entered by a pin 10 in the bar 0, so that the screw is rotatably coupled to said bar. By setting up or slackening off the screws 8 the roll C will be moved toward or from the platen-roll Pto vary the pressure between them. A cheek-nut a may be used on each adjusting-screw to firmly hold it in adjusted position, and it will be manifest that by the devices described the roll C is securely held in a fixed position.

As shown in Fig. 2, a second water-tank N is mounted on the base at the right of the opening A said tank having therein a roll a supported by arms 72, hooked over the outer end of the tank at a. The journals 0 of a roll R'of record-paper, preferably of stout strong texture, are supported in upright notches-a the end 1 of the web being led into the tank beneath roll a and then up over the roll C and down between it and the platenroll in contact with the transfer-web at that point.

A wringer-roll W is mounted adjacent the secondary pressure-roll (J and in contact therewith to squeeze out the surplus moisture from the record-web as it passes between rolls W and C. Pressure-regulating screws 20, supported in cars (1. on the sides, act against the bearing-blocks afhwhich latter are slidabl y mounted in slots (1/ in the frame sides. By means of these screws the pressure between rolls G and W is regulated entirely independent of the pressure between the rolls C and I, as will be manifest.

Remembering that the transfer-web t has received upon its outer face a negative impression or copy from the original document D, it will be manifest that such impressed face will be brought into contact with the dampened record-web r as the two webs are carried between the platen-roll I and the secondary pressure-roll C, and by this pressure a positive impression or copy will be transferred from the transfer-web to the recordweb. Thus two copies of the original are obtained, one a negative on the web I; and the other a positive on the web '2', and the former copy can be easily read from the opposite face of web t owing -to its transparency. After a number of documents have been copied the two webs can be cut transversely into sheets for filing away in suitable receptacles.

Referring to Fig. 1, a bracket A is secured to the exterior of one of the sides A, it having an upright bearing-ear (1 for the short shaft (4 of a crank-arm a), the inner end of the shaft having secured to it a pinion 05, in mesh with the internal gear By rotating the crank-arm in the direction of arrow the impression or platen roll P will be rotated in the same direction, but at a slower speed, and such rotation of the platen-roll causes rotation of the pressure rolls and wringer-rolls in the direction of the arrow on Fig. 2.

In the diagram view Fig. 3 the rolls are omitted and only the pathsof the two webs are shown, that of the transfer-web t by a dotted line and that of the record-web 1' by a full line to more clearly show the mode of operation of the press.

The operation of the press is rapid, it makes the required copies accurately and evenly, and the dampening of the two webs can he regulated with great nicety.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a copying-press for making at one operation two copies of an original, means to impose an impression from the original upon a transparent transfer-sheet, means to transfer to a record-sheet a positive copy from the impressed face of the transfer-sheet, and devices to dampen both the transfer and record sheets.

2. In a copying-press for making at one operation two copies of an original, means to impose an impression from the original upon a transparent transfer-sheet, means to transfer to a record-sheet a positive copy from the impressed face of'the transfer-sheet, an impression-roll forming-a common member of both of said means, a'separate and independentlyadjustable pressure-rolls cooperating therewith to impress the transfer and record sheets respectively, and devices to dampen both the transfer and record sheets.

3. In a copying-press, a platen or impres .sion roll, two-independently-adjustable pressure-rolls cooperating therewith, means to dampen a transfefiweb adapted to be carried around the platen-roll between it and both pressure-rolls, passage of the original document between one of the latter rolls and the platenroll and facing the transfer-web making an impression thereon, a delivery device to remove the document when such impressionhas been made, and means to carry adampened record-webbetween the other pressureroll and the platen and against the impressed face of the transfer-web, to transfer to the record-web a positive copy from the impressed face of the transfer-web.

4. .In a copying-press, aplaten-rolland two I cooperating pressure-rolls, means, includinga wringer-roll cooperating withthe platen-roll,

to dampen a transfer-web adapted to be carried around the platen-roll and between both pressure-rolls, means, including a wringer-roll cooperating with a pressure-roll to dampen a record-web and carry it between one of the pressure-rolls and the platen-roll in contact with the previously-impressed face .of the transfer-web, and means to direct the matter to be copied between the other pressure-roll and the'platen-roll and facing thedampened transfer-web, to make an impression thereon of the matter to be copied, a copy of such im pression being subsequently transferred to the record-web. V

5. In acopying-press, means to impose an impression from an original upon a transfersheet, devices to dampen the latter, means to transfer to a record-sheet a positive copy from theimpressed' face of the transfer-sheet, independent devices to dampen the record-sheet, a rotatable platen forming a member of both of said means, actuating mechanism for said platen, a deviceto deliver the original document after the impression has been made upon the transfer-sheet, and supports located at op: posite sides of the platen-to sustainxr'espec: tively rolls of transfer and record paper.

6. In a copying-press, a rotatable platenroll, a wringer-roll and primary and secondary pressure-rolls peripherally arranged around and driven by rotation of the platen-roll,

means to positively rotate the latter, a second wringer-roll cooperating with the secondary pressure-roll, means to support a roll of transfer-paper at one side of the rolls, means to support a roll of record-paper at the other sidethereof, awetting device for each web of paper, and means to introduce a document to be copied between the platen-rolland the primarypressure-roll, and a delivery device for such document, a negative being first imposed upon the transfer-web and'thereafter a positive' from such negative is transferred to the record-web. I

7 In a copying-press for making at one op eration two copies of an original document, means to impose a negative impression from an original document, upon a transfer-web of tissue-paper, means to transfer to a record-web of paper a positive copy from such negativeimpression,gseparate and independently-adjustable means to dampen the webs, and means tocarry thewebs through the press to successively form the negative and positive copies of the matter to be copied.

8. In a copying-press, a platen-roll having a yielding surface, independenlyadjustable primary and secondary pressure-rolls cooperating therewith, a wringer-roll cooperating with the platen-roll, a second wringer-roll cooperating with the secondary pressure-roll,

each wringer-roll'being adjustable, a damp: enlng devlce ad acent each wrlnger-roll, and

-means to operate the press by or through the platen-roll, a dampened transfer-web being roll and a cooperating pressure-roll, both hav-..

ing a yielding surface, means to dampen a transferweb adapted to pass between said rolls and receive a copy from the face of the.

w s. a

original document, a second pressure-roll, and

means to direct adampened. record-web between it and the impressed face of the transfer-Web as the latter only is carried around the platen-roll, to transfer a positive copy, of i such impression to the record-web. y

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

7 HENRY F. SEARLES.

Witnesses:

G ORGE OTIS DRAPER, ERNEST W. WOOD.

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