US747074A - Printing and duplicating apparatus. - Google Patents

Description

PATENTED DEG. 15, 1903.

A. D. KLABER. PRINTING AND DUPLIOATING APPARATUS.

APPLICATION FILED SEPT. 25, 1902. v

2 SHEETS-SHEET 1.

30 MODEL.

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No. 747,074. V l PATENTED DEC. 15, 1903.

A. D. KLABER.

PRINTING AND DUPLIGATING APPARATUS. APPLICATION FILED um. 25, 1902. no MODEL. gsnnn'rs-snnm" 2.

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UNTTED drains Patented December 15, 1903.

Patent rricn.

AUGUSTUS DAVID KLABER, OF LONDON, ENGLAND, ASSIGNOR TO A. B. DICK COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

PRINTING AND DUPLICATING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 747,074, dated December 15, 1903.

Application filed September 25, 1902. Serial N0.124,751. (N model.)

To all whom; it may concern:

Beit known that I, AUGUSTUS DAVID KLA- BER, a subject of the King of Great Britain and Ireland, residing, at 327 High Holborn,

London, England, have invented certain new and useful Improvements Relating to Printing and Duplicating Apparatus, (for which I have made application for Letters Patent in Great Britain, No. 7,176, and dated March 24,

I0 1902,) of which the following is a specification.

My invention relates to printing or duplicating machines in which the impressed copies are fed out quickly one after the other from the machine while the ink is still damp, and has for its object to collect the separate sheets as fed out without causing blotting or offsetting at whatever rate the machine is worked.

My invention consists in collecting the sheets one by one in a web of paper as it is Wound onto a roller and when the collecting is finished feeding out the dried sheets into a collecting-tray as the web is unwound.

My invention further consists in details of construction whereby the process of collecting and delivering may be efiected simultaneously.

Referring to the accompanying drawings,

0 Figures 1 and 2, by way of example, illustrate in elevation and plan, respectively, the application of the invention in one form to a rotary-stencil duplicating-machine, while Figs. 3 and 4: show details in connection therewith. Figs. 5 and 6 show in side and end elevation, respectively, a special form of hearing or standard to be used according to a modification of the invention.

In carrying my invention into effect in an 40 improved form as applied to a rotary-stencil duplicating machine I arrange on suitable supports behind the machine two rollers, one behind the other. The rear one a of these carries a web I) of preferably absorbent paper. This roller a is provided with an adjustable brake or tension device which offers an adjustable resistance to the unwinding of the web. The web passes forward under a guide-roller c, disposed just below the printing-drum cl of the duplicator. It then passes back onto the forward or collecting roller 6.

The collecting-roller e carries on its axis a grooved pulley f, which is connected by a driving-cord g with a pulley h, secured to the .wound on the collecting-roller with it. They are thus dried and prevented from getting blotted.

When a given number of copies have been printed, the driving-pulleyfon the collectingrollere is disconnected,so that the latter is free to rotate on its own axis without being driven from the duplicator. This may be accomplished by meansof a small spring-pressed 7o pin-clutch 70, Fig. 3, which can be held out in its disengaged position after withdrawal by a cross-pin Z engaging in notches m in the slotted boss 12. It is adapted to secure the pulleyf to the roller 6 by engaging with one or more holes therein, as shown. A handle a is placed on the spindle of the web-roller, Fig.

2, which after the collecting-roller is freed from its pulley is Wound up, drawing the web off the collecting-roller. As the web is drawn off the copies come out one by one and are shot into or may be allowed to collect on a tray 0 below the duplicator.

In order to prevent the roller a overrunning or gaining on the roller 9, the former, as above mentioned, is provided with a brake or tension device. A convenient form of brake device is illustrated in detail in Fig. 4 and also shown appliedin Figs. 1 and 2. It consists of a springp, secured to the bearingq and adapted 0 to continually press against the end face of the roller Ct. In order to increase the frictional resistance of the brake, a disk r is provided between the springp and the end of the roller. The pressure of the spring can still be fur- 5 ther increased or adjusted by means of a lever 5. The lever is arranged so that it will remain in the position of either minimum or maximum resistance.

Owing to the fact that the last sheets fed 10o onto the web are the first to be delivered onto the tray on the reversal of the apparatus,

be removed and another put on.

they would not in some cases be sufficiently blotted or dried if the web were immediately unwound. In order to obviate Waste of time in waiting for the sheets to dry, the rollers a and e may in a modification of the invention be provided with detachable cylindrical covers, so that the web containing the sheets may In order to allow this removal, the guide-rollerc is made removable and the bearing or standard on one side of each roller a e is made removable or of the form shown in Figs. 5 and. 6. In these figures the hearing or standard tis pivoted at u u and provided with a projection "1;, bearing against a spring to, which retains the standard in either a vertical or horizontal position. The detachable cover wis pushed onto the roller from the end and is provided with a groove to engage with a feather z on the roller, or vice versa. The detachable covers may be made of cardboard, sheet metal, or any other suit-able material.

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

1. An apparatus for collecting and drying the sheets delivered from a printing or duplicating machine comprising a web of absorbent material, a web-roller and a collectingroller, and means for driving the latter from the printing or other machine, substantially as hereinbefore described.

2. An apparatus for collecting, drying and delivering the sheets delivered from a printing or duplicating machine comprising a web of absorbent material, a web-roller provided with a brake or tension device, a collectingroller, means such as a pulley for driving the latter from the printing or other machine and means for freeing the collecting-roller from the pulley or other driving means so that the travel of the web may be reversed in order to redeliver the dried sheets, substantially as hereinbefore described.

3. An apparatus for collecting, drying and redelivering the sheets delivered from a printing or duplicating machine comprising a web of absorbent material, a web-roller, a brake or tension device upon the latter, a guideroller on the machine, a collecting-roller, a driving-pulley for the same, a spring-clutch for connecting the pulley to the roller and a handle for rotating the web-roller, substantially as hereinbefore described.

4. An apparatus for collecting, drying and redelivering the sheets delivered from a printing or duplicating machine comprising a web of absorbent material, a web-roller, a collect ing-roller, means for driving the same in either direction, and means for enabling the web to .be removed without unwinding consisting of cylindrical covers feathered or otherwise secured to the rollers, and hinged standards or bearings substantially as hereinbefore described.

In witness whereof 'I-have hereunto set my hand in presence of two witnesses.

AUGUST US DAVID KLABER.

Witnesses:

EDITH ETHEL WRIGHT, ALBERT E. PARKER.

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