US336086A

US336086A - Copying peess

Info

Publication number: US336086A
Authority: US
Publication date: 1886-02-16
Anticipated expiration: 1903-02-16

Description

T. B. BOYD.

COPYING PRESS.

(No Model.)

No. 336,086. Patented Feb. 16, 1886.

Y @Mandy NrTnn STATES TRUSTIN B. BOYD, OF

ST. LOUIS, MISSOURI.

COPYING-PRESS.

SPECIFICATION forming part of Letters Patent No. 336,086, dated February 16. 1886.

Application filed May 13, 1884.

To all whom it may concern.-

Be it known that I, TRUSTIN B. BOYD, of St. Louis, Missouri, have made a new and useful Improvement in C0pying-Presses, of which the following is a full, clear, and eXact description, reference being had to the annexed drawings, making part of this specification, in Which- Figure lis a plan of the improvement; Fig. 2, a side elevation, and Fig. 3 a vertical longitudinal section on the line 3 3 of Fig. 1.

The same letters of reference denote the saine parts.

A represents a reel attached to the shalt a in the frame B, which is preferably made in the form of a case to inclose the lower portion of the mechanism of the device. A web, O, of paper suitable for taking impressions is Wound upon the reel A, and is led thence through a pair of pressure-rolls, D D, and thence through a second similar pair of pressure-rolls, E E, and 1h nce to a reel, F. The various rolls, and also the reel F, are att-ached to the shafts d e f, respectively. Thelouer pressure-rolls, D E, are adapted to b3 rotrtel in a tank, G, which holds Water g. The rotation of the rolls D E therefore causes tle water to be distributed upon the rolls and to be applied to the paper C. The letter, bill, or Whatever writing it is desired to take a copy of is fed from the table b between the pressure-rolls D D and above the web C. This causes an inlpiqession of the Writing to be taken on the web C. The Web and Writing move together between a second set, E E, of the pressure-rolls. By causing the writing to be pressed a second time against the web by passing it through the second set, E E', of pressure-rolls a more distinct impression is obtained. From the pressure-rolls E E the web passes to the reel F, upon which it is Wound, as shown in Figs. l, 3. The Writing after passing the rolls E E may be detached from the web. To this end the lid b may be lifted or turned back on its hinges b3 b3, so that the operator can reach the Writing from above at that point, or by opening the door b2 the Writing may drop outward from the case B. The table b is also preferably made the top of the ease B at that end thereof, and it is also hinged at b3 to enable it Serial No. 131,333. (No model.)

to be turned back when it is desired to reach the reel A. A spring, H, Fig. 3, may be employed to produce the proper tension upon the reel A.

The device is operated by means, say, of the crank I, which is applied to the shaft d of the roll D. The roll D is provided with a gear, d. This gear engages with a similar gear, d2, upon the roll D. The gear d also engages with a pinion, J, upon a shaft, j. The pinion is used to transmit the motion of the gear d to a gear, e', upon the roll E. This last-named gear e also engages with a gear, c2, upon the roll E. In this manner the desired motion is imparted to all of the pressure-rolls. The action ofthe pressure-rolls upon the Web C causes the web to be unwonud from the reel A.

The receiving-reel F is operated, preferably, as follows: The gear e is made to engage with a pinion, K, upon a shaft, 7c. This last-named shaft k is also supplied with a friction-pulley, k', Whose face bears against the face of a smooth pulley, f', upon the shaft f. In this manner the proper motion is imparted to the receiving-reel F. This enables the reel F to be rotated at various speeds to suit the unwinding of the web from the reel A and the Winding of the web onto the reel F. The second set, E E, of pressure-rolls is used more especially when duplicate or triplicate impressions are to be taken. When but asingleimpression is need ed, a single pair, D D', of pressurerolls suces.

I claim-- 1. The herein-described copying-press, the same consisting of the frame B, the reel A, the pressure-ro1ls D D', the tank G, and the reel F.

2. The combination of the frame B, the reels A F, the pressure-rolls D D E E', and the tank G, as described.

3. The combination, as described, of the frame B, the reels A F, the rolls D Dl E E, the gears d di, the pinion J, the gears e e", the pinion K, and the pulleys k f.

TRUSTIN B. BOYD.

Witnesses:

CHAs. D. MOODY, Cona E. HUNT,