US821911A - Transfer-press. - Google Patents

Description

No 821,911 PATBNTED MAY 29, 1906. G. WHITE. I TRANSFER PRESS.

APPLIOATION FILED JUNE 17 1904.

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PATENTED MAY 29, 1906.

G. WHITE. TRANSFER PRESS.

APPLICATION FILED JUNE 17, 1904.

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UNITED STATES PATENT OFFICE.

Specification of Letters Patent.

ratenteci May 29, 1906.

Application filed June 17.1904. Serial No. 213.050.

1'0 all whom, it may concern:

Be it known that I, GEORGE WHITE, a citizen of the United States, residing in Jersey City, in the county of Hudson, in the State of New Jersey, have invented certain new and useful Improvements in Transfer Presses, &c., of which the following is a specification, reference being had to the accompanying drawings, forming a part thereof.

In another application, filed September 19, 1903, Serial No. 173,771, there is described a compact rigid machine for the transfer of lines or characters from a previously-prepared master-roll to a copper plate in intaglio, that the latter may be used for printing,

such machines being so constructed and arranged as to permit the master-roll and the plate to be brought progressively nearer to each other. For the practical operation of such machine upon a commercial scale it is found desirable to provide means for quickly and exactly adjusting the master-roll to its proper position, and with the attainment of such result the present invention is concerned.

The invention will be more fully described hereinafter with reference to the accompanying drawings, in which it isillustrated, and in which, as far as possible, parts which are common to the machine described in said former application and to the machine herein shown and described are identified by the same letters of reference.

In said drawings, Figure 1 is a view in elevation of one end of the improved machine. Fig. 2 is a plan view with the sides of the frames and some other parts in horizontal section.

Except as hereinafter pointed out, the construction of the present machine is substantially the same as described in said former application. The frame comprises webbed top and bottom plates a and side plates 1), secured together by bolts 0. A working plate a for contact with the master-roll 6 may be secured to the under side of the top plate a. A wedge f is arranged to be driven or retired by a screw operated by a suitable handwheel f such wedge supporting a verticallymovable block g, upon which is supported for longitudinal movement in a horizontal plane a second block or plate h, the same be ing moved by a screw operated by a suitable hand-wheel h, while rolls h held in position by the frame h, are interposed between the vertically-movable block 9 and the longitudinally-movable block h. Upon the block h, which is reciprocated for the purpose of effecting the transfer of lines or characters from the master-roll e to the copper plate, is further supported an adjustable supportingplate 762, arranged to be moved longitudinally for the purpose of adjusting the copper plate in position and for permitting the withdrawal of the same from the machine for examination or substitution by a screw operated by a suitable hand-wheel If. The copper plate I, which is to receive the impression, lies upon the top of the adjustable plate k and reciprocates in contact with the masterroll a as the block or plate It is reciprocated and may also be withdrawn from beneath the master-roll c, with the adjustable plate by operating the hand-wheel k The master-roll e is pressed upward against the working plate a by supporting-blocks m", which may be pressed upward by the lever m and springs. (Not shown in the accompanying drawings.)

The parts thus far referred to are arranged and operate in the same manner as the corresponding parts of the machine described in the former application above referred to, and it will not be necessary to enter into a more detailed explanation of the construction and relation of these parts. That with which the present invention is particularly concerned is the means by which the master-roll 6 may be introduced into the machine and quickly and easily adjusted to the exact position required for operation. These means will now be described. Upon the side plates Z) of the machine are secured brackets 19, which support rails or tracks 6 upon which may travel a carriage which receives the masterroll 6. As shown in the drawings, this carriage comprises side frames n, transverse bars 11/, and wheels or rollers M, which may be mounted upon the ends of one of the bars n. To guide the carriage in its movements and to insure its parallelism, one of the transverse bars may be provided centrally with a rod M, which passes through a guide-plate 0. The latter is mounted upon pivots 0 in brackets 0 secured to the side plates of the machine, to allow for'a variation. in position of the carriage in a vertical plane without binding.

The opposite side frames n of the carriage are provided with center screws M, which are adapted to engage the master-roll e in the line of its axis and maintain it axially in definite and unchanged relation with respect tothe carriage. Since the parallelism of the latter is assured, as already described, the roll itself is therefore mamtamed in parallel relation with the transverse axis of the machine while it is being placed in operative position in the machine and is maintained absolutely in such relation until it is held by the supportingblocks m before referred to. Furthermore, in order that the master-roll may be so placed in the machine that the line of characters thereon to be transferred to the copper plate shall be exactly in the required position when the operation of transferring is begun there is provided a pin p, arranged to slide in a fixed bearing in a bracket 19, secured to one of the side plates 1) of the machine, and to pass through the adjacent side plate n into a recess e, formed therefor in the adjacent end of the master-roll c.

It is unnecessary to explain herein at length the operation of the machine as a whole. So far as the operation of the device herein par ticularly referred to is concerned, it will be understood-that when the master-roll c has received the characters which are to be transferred it is placed in the carriage, which has been drawn out to receive it, the center screws 01. being turned in to engage the countersinks in the ends of the roll. The carriage is then moved inward, its rod n engaging the guide 0, until it is brought to the desired position abovethe plate W. The roll is then rotated until the pin can be inserted into the recess 6 formed in the end of the roll 6 and the correct position of the roll assured. The pin 10 is then withdrawn and the supportingblocks m are raised, as described in said former application, to engage the roll a and press it upward against the working plate a. When this is accomplished, the roll is reciprocated with a rolling movement upon the copper plate, as described in said former application. In other respects the operation of the machine herein described does not differ from that of the machine described in said former application.

It will be understood that it is not intended to limit the invention to the precise construction and arrangement of parts shown and described herein, as it is obvious that the same may be varied to suit different condi tions of use without departing from the spirit of the invention.

I claim as my invention 1 In a transfer-press, the combination of a frame, a working plate and a plate-supporting block movable vertically, the one with respectto the other, a master-roll carriage and a track or ways upon which the carriage with the master-roll may be guided to position between the working plate and the platesupporting block, substantially as described.

2. In a transfer-press,

the combination of a frame, a working plate and a plate-supporting block movable vertically, the one with respect to the other, a master-roll carriage, a track or ways upon which the carriage with the master-roll will be guided to position between the working plate and the plate-supporting block and a guide for said carriage, substantially as described.

3. In a transfer-press, the combination of a frame,'a working plate and a plate-supporting block movable vertically, the one with respect to the other, a master-roll carriage, a track or ways upon which the carriage with the master-roll will be guided to position between the working plate and the plate-supporting block a guide-rod secured to said carriage, and a guide-block mounted on the frame, subtantially as described.

4. In a transfer-press, the combination of a frame, a working plate and a plate-supporting block movable vertically, the one with respect to the other, a master-roll carriage, a track or ways upon which the carriage with the master-roll will be guided to position be tween the working plate and the plate-supporting block a guide-rod secured to said carriage, and a guide-block pivotally mounted on the frame, substantially as described.

5. In a transfer-press, the combination of a frame, a working plate and a plate-supporting block movable vertically, the one with re spect to the other, a master-roll carriage, a track or ways upon which the carriage with the master-roll may be guided to position between the working plate and the plate-supporting block, and a positioning-pin adapted to engage one of the side frames of the carriage and the master-roll, substantially as described.

6. In a transfer-press, the combination of a frame, a working plate and a plate-supporting block movable vertically, the one with respect to the other, a master-roll carriage, a track or ways upon which the carriage with the master-roll may be guided to position between the working plate and the plate-supporting block, and a positioning-pin mounted on the frame and adapted to engage the masterroll, substantially as described.

7. In a transfer-press, the combination of a frame, a working plate and a plate-supporting block movable vertically, the one with respect to the other, a master-roll and a positioning-pin mounted on the frame and adapted to engage the master-roll, substantially as described.

This specification signed and witnessed this 13th day of April, A. D. 1904.

GEORGE WHITE.

In presence of GEORGE: WHITE, J r., JAMES F. FIELDER.

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