US498851A - Printing-press - Google Patents

Description

(No Model.)

.J. M. JONES. PRINTING muss.

Patented June 6, 1893.

minwses NITED STATES PATENT OFFICE.

JOHN M. JONES, OF PALMYRA, NEW YORK.

PRINTING-PRESS.

SPECIFICATION forming part of Letters Patent No. 498,851, dated June 6, 1893.

Application filed November '7, 1892. Serial No. 451.236- (No model.)

To all whom it may concern:

Be it known that I, JOHN M. JONES, a citizen of the United States, residing at Palmyra, in the county ofWayne and State of New York, have invented certain new and useful Improvements in Printing-Presses, of which the following is a specification.

My invention relates to printing presses, and has reference more particularly to that class of presses known as the Gordon press,

in which the bed reciprocates toward and from an oscillating platen.

In the present invention, an inking cylinder orroller, in lieu of a rotatable inking disk, is mounted in the reciprocating bed; and the roller-frame carrying the form-inking rollers, is so arranged and connected that when thethrow-oif lever is moved backward to throw off the impression, the said rollerframe will also be prevented from traversing the form and will remain in such position that its rollers may have contact with the main inking cylinder for the distribution of ink..

In the drawings,-Figu rel isa perspective View of a Gordon press showing myimprovements applied thereto, the inking rollers being shown as in contact with the inking cylinder; Fig. 2, a face view looking at the opposite side, the inking rollers being represented as having just descended over the form; Fig. 3, a view illustrating certain details hereinafter set forth.

A indicates the main frame, which may be of most any desired construction. In the main frame is mounted the platen B, and the shaft 0, which latter carries the crank wheels D and E. These wheels D and E are connected by pitmen F with a shaft G mounted in the upper end of the bed H, which bed is hinged or pivoted at its lower end to the main frame. Wheel F. gears into a small pinion e on the main shaft J, to which motion is imparted from any suitable source of power.

Shaft G is provided at one end with an arm a which carries a rod 6; the lower end of the rod 1) being connected to a lever c pivoted to the main frame. The throw-off lever I, pivoted in the main frame, is connected by a link or rod 01 with the short lever 0, so that when the lever I is moved away from the operator, it will, acting through the connections cl, 0, b, a, and the eccentrics on shaft G bring the parts into the adjustment required preparatory to making an impression. On the other hand, when the lever I is thrown toward the operator, the parts will be brought into such adjustment as to preclude the type from making an impression. This will. be better understood upon reference to my patents numbered 379,958 and 450,368, in one of which the mechanism herein shown is more fully described. Most any form of throw-off mechanism may be substituted for that shown, and hence I have here given only a general description of the mechanism which I will refer to as the throw-off mechanism.

Mounted upon thecrank shaft J isa sprocket wheelfabout which and a double sprocket g at the base of the main frame, achain hpasses, as shown in Fig. 1. A second chain 2', passing at its lower end about wheel g, also passes over a wheel j secured upon the end of the shaft is of the inking cylinder K, the said cylinder being journaled in the upper end of the bed H. The double sprocket wheel g is mounted upon the pivot connecting the bed and the main frame so that the reciprocation of the bed will not afiect the gearing. Belting or any other form of gearing may be substituted for the sprocket wheels and chains. From the foregoing, it will be seen that the ink-cylinder will have a continuous rotary motion regardless of the adjustment of the impression throw-off mechanism.

L indicates the frame, carriage, or carrier in which the form-inking rollers Z are mount: ed, and M, M, indicate two rods or links connecting this frame with the arms N, N, of a shaft 0 hung in suitable bearings in the main frame; the connection being such that when .the shaft is oscillated in one direction and the arms thrown upward, the roller-frame will be brought to the position shown in Fig. 1, but when the shaft is oscillated in the reverse direction, the arms will be thrown downward, andthe roller-frame brought to the position shown in Fig. 2, the rollers inking the form in both the up and down movements.

In order to actuate the shaft 0, I employ a connection between the bed and the shaft. This connection may be variously modified without departing from my invention, but a convenient construction is illustrated in Figs. 2 and 3, and will now be described. On one end of shaft 0 is an arm mto which is pivotally at tached one end of a link orbar P, the opposite end of which is shown in the present instance as being connected to the shaft G. Now, of course, when the bed moves toward the main frame, the shaft 0, through arm mand bar P, will be rocked or oscillated in one direction, but when the bed moves away from the frame, these same connections will oscillate or rock the shaft in the opposite direction, thus imparting to the roller-frame the desired movments. hen the impression is thrown off, it is desirable that the roller-frame shall remain in its elevated position with'the rollers in contact with the ink cylinder, and to secure this result, 1 make the bar or connection P extensible lengthwise and provide it with means whereby when the impression is on the bar shall be rendered non-extensible, but when the impression is otf,'the bar shall be extensible and by its extension prevent the rockingof shaft 0. This will best be understood upon referenceto :Figs. 2 and 3, in-which it will'be seen'thatthe bar P ismade in two parts or sections it and 0, one of which, n, is secured to shaft G or to any other part of the :bed, while the other section, 0, has'a sliding connection with the section '11. Section oisprovided with a latch 13 designed to engage the section a and lock the two parts of the bar together so that theys'hall movetogether as connecting the arms N, N,'with the rollerone.

"In order to actuate the latch when the impression is .thrown off,Iconnect with a-member of the throw-off mechanism, preferably the short lever c,a rod (1 which is connected at itsupper end with the latch 19. When the throw-off lever I is moved forward to throw on the impression, the rod qwill draw the latchdownto engage the section 0, and thuslock the two parts of the bar P together; but. whenthe impression is thrown ed by a reverse movementof the lever -I,the rodiq will raise the latch, and thereby disconnect the two parts-of thebar'P. 'When'thus released,; the section 0 of the bar P will, as the bed re-v ciprocates toward and from the mainframe, slide upon-and relatively to the main section 'n-without rocking the shaft 0 and without causing any travel of the roller-frame.

position.

Having thus described my invention, what I c1aim-is 1. In combination with the main frame, platen, and pivotedbed, a rotating ink cylin-- der mounted in the bed, a roller-frame provided with'inking rollers, means for causing:

spring r secured at one end to an arm 8 on' shaft O, and at the opposite end tothe frame. 5 tends to keep the roller-frame in its elevated latch.

a travel of the said frame, a throw-off mechanism and a connection between the throwoff mechanism and the means for causing a travel of the roller frame, whereby when the impression is thrown off the said means are also thrown out of action.

2. In combination with the main frame, platen, and pivoted bed, a rotating ink cylinder, mounted in the bed, a roller frame, connections substantially such as shown and described for actuating the roller-frame, an impression throw-off mechanism having connection with the frame -actuating devices whereby the throwing off of the impression shall automatically throw the frame-actuating devices out of action anda spring to cause the said frame to remain in itselevated position.

3. In combination with the-mainframe and platen; the xpivotedibed and its inking cylinder; the roller-frame :provided with rollers; an extensible device for actuating the rollerframe; a lock for the said device, andan impression-throw-ofi mechanismand intermediate connections arranged :to actuate thelock or latch.

4:. In combination with the mainframe and platen; thezpivoted bed and its inkingcylinder; the roller-frame provided with rollers; the rock-shaft O,journaled in'theimainframe and having arms N, N, and-m; links M, M,

frame; and .a bar or .rod P-connected at one end with arm on andat .the other endwitlrthe bed. i

5. In combination with the main frame and platen; the pivoted bed-and its inkingcylinder; the roller-frame provided with rollers; the rock-shaft 0 provided with arms N, .N, and m; links M, M, connecting the .frame with the arms N, N; am extensiblezbar P connecting the arm m-with the bed, a latch 19 to lock the two parts of bar' P and means :for actuatingthe latch.

6. In combination with ,thema'in frame and platen; the pivoted bed and its inking cylinder; the roller-frame provided-with rollers; the rockshaft 0 provided with arms N, N, and m; links M, M, connecting the frame with the arms .N, N; an extcnsible'bar Pconnecting the arm m with the bed, alatch p to lock the two :parts of bar'P, and a-throw-off mechanism providedwith a rod qto actuate the In witness whereof I hereunto setmy-hand in the presence of two witnesses.

JOHN 'M. JONES.

Witnesses:

J. W. TRAHU, ISAAC VIENNO.

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