US1062573A - Printing-press. - Google Patents

Description

J. A. WHITTINGTON.

PRINTING PRESS. APPLICATION IILIBD 11 1117. 1912.

Patented May 20, 1913.

a SHEETS-SHEET 1.

WITNESSES J. A. WHITTINGTON.

PRINTING PRESS.

APPLICATION FILED APR.17. 1912.

Patented May 20, 1913.

3 SHEETS-SHEET 2.

[NVbjNTOR c/0/977 /7 /7/ 779/79 70/? S E m w W A llarney COLUMBIA PMNOORAPH C0. WASHINGTON. D. C-

J. A. WHITTINGTON.

PRINTING PRESS. APPLIQATION FILED APB..17. 1912.

1,062,573. Patented May 20, 1913.

3 SHEETS-SHEET 3.

JOHN A. WI-II'ITINGTON, 0F SPARTANBURG, SOUTH CAROLINA.

PRINTING-PRESS.

Application filed April 17, 1912.

Specification of Letters Iatent.

Patented May 24), 1913.

Serial No. 691,377.

To all whom it may concern Be it known that I, JOHN A. WVHrr'riNo- TON, a citizen of the United States, residing at Spartanburg, in the county of Spartanburg and State of South Carolina, have invented certain new and useful Improvements in Printing-Presses, of which the following is a specification.

This invention has relation to new and useful improvements in multiplex printing devices and the main object thereof is to provide a device of this nature wherein the type line or face of type is in position and has stopped moving before the paper which is printed comes in contact with the same.

A further object of my invention is that it has in addition to the ink roller or re tainer a composition or rubber roller which takes the ink from the ink container and distributes the same evenly on the face of the type.

A further object of my invention is to provide a printing press that will be eflicient in operation, comparatively simple in construction and comparatively inexpensive to manufacture.

With the foregoing and other objects in view my invention consists of the novel features of construction, combination and ar rangement of parts as are described in this specification, illustrated in the accompanying drawings, forming a part thereof and particularly pointed out in the appended claims.

Reference being had to the drawings: Figure 1 is a side elevational view of my invention, parts being indicated by dotted lines. Fig. 2 is a top plan view thereof. Fig. 3 is a vertical, longitudinal section. Fig. 4 is a side elevational view of the reverse side to that illustrated in Fig. 1. Fig. 5 is a vertical, longitudinal section taken through Fig. 4, illustrating the type roller and ink roller in normal position. Fig. 6 is a diagrammatic, side elevational view illustrating one of the means employed for conveying power from the tripper to the type roller. Fig. 7 is a similar view showing the tripper in normal or raised po sition. Fig. 8 is a partial, longitudinal, vertical section and partial elevational view of a part of the type roller and all of the said tripper. Fig. 9 is an end view of the construction of the type roller when a link connection between the tripper and roller is employed. Fig. 10 is a similar view illustrating the roller as it would appear when 111 normal position. Fig. 11 is a vertical, fragmentary, sectional view through the framework of the device, indicating the end of the type roller in dotted lines, said view showing the construction of said tripper, the means of conveying power therefrom and the type roller when rack and pinion is employed as the means of conveyance of said power.

Referring more particularly to the drawings, in which like numerals designate like parts throughout, my invention is described as follows:

The type roller 1 is rotatably mounted in the frame 2, said type roller being provided with a longitudinal slot cut therein for the reception of type 3, said roller being provided at one end thereof with a gear wheel 4, which gear is secured to a roller or keyed to a shaft upon which said roller is mounted. Provided at the opposite end of the type roller is a tripper5which tripper is tripped by any suitable means on the printing press. The tripper is received in a large recess in the framework 2, the walls of which recess contact the faces of the tripper and thereby form a guiding means for the vertical movement of the same. Provided upon the adjacent end of the spindle of the type roller 1 is a pinion 6, which pinion engages teeth 7 provided upon the tripper. An equal number of teeth are provided in the tripper as there are teeth in the pinion. Clearance is provided above the teeth or rack 7 so that when the last tooth in the pinion has passed the last tooth in the rack 7 and the pin 8 has abut-ted against the vertical olfset 9 of the tripper, the type roller will stop rotating but the tripper may continue to descend until said pin 8 is engaged by the notch 10 in the tripper thereby positively securing the type roller temporarily against rotation in either direction.

So that the type 3 in passing from its normal position as illustrated in Fig. 5, to a vertical position as illustrated in Fig. 3, will be properly inked, provision is made so that the type roller 1 and the ink roller 11 will rotate at the same speed, when contacted. In accomplishing this end a cam 12 is provided upon the roller 1, which cam contacts the cam 13 of the ink rubber or composition roller 11. A pair of small gear wheels 14 which intermesh, transmit power from the gear wheel 4 to the gear wheel 15 secured to a cuff 19, which is loose on the shaft 16 upon which said ink roller is secured. As the type roller assumes a vertical position from the position illustrated in Fig. 5, the gears 1a will cause the roller 11 to rotate in a reverse direction to the direction of rotation of the roller 1 until the cam 12 contacts the cam 13 and forcing the latter inward causes the same to engage the teeth of the ratchet 15, carrying the roller 11 along at the same speed as the roller 1 rotates. It will be seen. that as it is necessary for the face of the type and surface of ink roller to travel same distance while in contact hence the provision of the above described mechanism. As the cam 13 contacts the cam 12 the dog 17 is thrown out of engagement with the ratchet 15 thereby temporarily throwing the gears 14: out of direct connection with the ink roller since the connection is made by means of the engagement of dog 17 with ratchet 15 as will be described fully later.

The gear wheel 15 and the disk 18 are held fast toa cuff 19, which cuff is loose upon the spindle 16 on which the ink roller is securely mounted. The gear 15 and disk 18 being fastupon the same cuff, it will therefore be seen that one will not rotate without the rotation of the other. The cam 13 and dog 17 being pivoted to the inner face of the disk 18 it will therefore be seen that the ink roller will not be rotated by means of the gearing 1-1 and 15 except at such time as the dog 17 is in engagement with the ratchet 15, as stated. Therefore, when the cam 12 contacts the cam 13 throwing the dog 17 out of engagement with the ratchet 15 and simultaneously throwing the cam 13 in engagement therewith, the two rollers will rotate for a time being or while in contact at the same rate-of speed or the same distance. [is soon as the cam "12 passes out of contact with the cam 13 the said cam 12 being automatic becomes disengaged from the ratchet 15 by resilient means 19 pressing upon the dog 17, simultaneously and throwing the dog 17 back into engagement with the ratchet 15 causing the gearing to again come into use until the type 3 of the roller 1 assumes a vertical position as illustrated in Figs. 2 and 3. As soon as the pressure which holds the tripper in tripped position is released a spring 20 countersunk in the under face of the tripper and which is contracted when the tripper is pressed downward, causes the tripper to travel upward and again assume its uppermost position, during which time the rack 6 and pinion 7 cause the roller 1 to rotate in a reverse direction as heretofore described. The gearing 4t, 14- and 15 causes the rotation of the disk 18 but does not cause the rotation of the ink roller in a reverse direction as the dog 17 clicks or slips over the ratchet 15 which is stationary until such time as the cam 12 engages the cam 13, again throwing the cam 13 into engagement with the ratchet 15 which causes the ink roller to rotate a short distance in a reverse direction or, in other words, causes it to rotate so long as said cams are in contact with each other. After contact between said cams is broken, the gear wheels, above mentioned, continue to rotate but the dog 17 again slips over the ratchet 15 permitting the ink roller to again remain stationary, the roller 1, gearing and disk 18 rotating until the tripper is in its uppermost posi' tion and the roller is in its normal position as illustrated in Fig. 5 of the drawings. The object of this is to permit the dog 17 to secure a new position upon the ratchet 15 for the beginning of the next stroke, which brings the type of the type roller each time against a fresh surface of the ink roller. In operation the type line or face of type will have assumed a proper vertical position and will have stopped moving before the paper which is to be printed upon comes in contact with the same.

Rotatably mounted in the frame 2 and contacting the ink roller 11 is an ink con tainer 21, said ink container being provided with a gear 22 at one of its ends which engages a gear 23 at the adjacent end of the ink roller 11, said ink container being normally held in contact with the roller 11 by means of coil springs 24 provided in the framework 2. The ink roller and the ink container are each rotatably mounted in slidable members 25 arranged in the framework 2 for the purpose of permitting the adjustment of the ink roller and container in the event of the wearing away of the ink roller or for other reasons. A thumb screw 26 being provided in the framework which contacts the ends of respective members 25 and secures them against rearward movement once they have been adjusted in the desired position.

I will now describe the link drive connection shown in Figs. 6 and 7, which may be used in lieu of the rack 6 and pinion 7. In this form of conveying power from the tripper to the type roller, a link 27 is connected rotatably to a pin 28 held to the tripper and to a pin 29 held to the inner shaft 30 of the type roller, which construction is employed only when the link drive connection is employed. The inner shaft 30 and outer shaft 31 are held together by means of a coil spring 32 interposed between them near one end. One end of the spring is fast to the inner shaft while the other end is held to the outer shaft. When the tripper is forced down the inner shaft makes about one third revolution or thereabout and the outer shaft rotates with it until a pin 33 in side of frame comes in contact with an extension 34 on the outer shaft and halts the rotation of the latter with the type in vertical position. By forcing the spring the inner shaft continues to rotate a short distance holding the outer shaft securely against rotation in either direction.

The outer and inner shafts are held in such position until after the paper is printed and the tripper is released. The impression being made and the force holding the tripper down being released, the inner shaft rotates a short distance before the outer shaft begins to rotate. The spring 20 causes the shafts to rotate back to their normal posi tion. A pin 35 integral with the inner shaft at one end moves in a shot 36 of the outer shaft thereby limiting the rotation of the inner shaft within the outer shaft after the outer shaft is halted by pin 33 contacting extension 34;. Normally this pin rests against one wall of the slot and prevents the spring 32 from unwinding.

It is believed that in connection with the drawings the foregoing description will render the construction of invention and operation thereof clear to any one skilled in the art to which it appertains.

Although I have specifically described the novel features of construction, combination and arrangement of the several parts of my invention, yet I do not confine myself to such specific construction, combination and arrangement but reserve and may exercise the right to make such changes therein as do not depart from the spirit of the invention or the scope of the appended claims.

Having described my invention, what I claim as new, is:

1. In a device of the kind described, the combination of a frame with a type roller and an ink roller, said type and ink rollers rotatably mounted in the frame, a depressible tripper to cause the rotation of the type roller, means secured to the type roller and the tripper to cause the rotation of the type roller in one direction when the tripper is pressed downward, and in a reverse direction while assuming an elevated position, a spring interposed between the under face of the tripper and the frame. said spring for the purpose of causing the tripper to assume an elevated position from a depressed one, thereby causing the reverse rotation of the type roller from that when the tripper is being pressed downward and means interposed between the type roller and the ink roller to cause the rotation of the ink roller in a reverse direction to that of the type roller, and means to cause the ink and type rollers to rotate at the same speed or travel the same distance when in contact.

2. In a device of the kind described, the combination of a frame with a type roller and ink roller rotatably mounted therein,

a depressible tripper to cause the rotation of the type roller, means secured to the type roller and the tripper which causes the rotation of the type roller in one direction when being pressed downward and in a reverse direction when assuming an elevated position, a spring interposed between the under face of the tripper and the frame of the device to cause the tripper to assume a raised position from a lowered position, means interposed between the type roller and ink roller to cause the rotation of the ink roller in a reverse direction to that of the type roller, said means consisting of a plurality of gears, intermeshing, one of which is held to the shaft of the type roller and one of which is loosely mounted on the shaft of the ink roller, the others being interposed between them, and means to cause the ink roller and type roller to travel an equi-distance or travel at the same rate of speed when contacting, said last-named means comprising cams, one provided upon the type roller and one upon the ink roller, the last-mentioned cam having a series of teeth on its inner face, a ratchet secured upon the ink roller, said cams, when contacting, causing a series of teeth on the inner face of the cam secured to the ink roller to engage the ratchetof said roller thereby causing the rollers to rotate at the same speed while contacting and only While contacting and means to cause the cam provided for the ink roller to assume a normal position when the tripper assumes a normal position, said means permitting the ink roller to rotate in a reverse direction only when contacted by the type roller.

3. In a device of the kind described, the combination of a frame with type roller and ink roller rotatably mounted-therein, a clepressible tripper to cause the rotation of the type roller, connecting means between the type roller and the tripper which causes the rotation of the type roller in one direction when being pressed downward and in a reverse direction when assuming an elevated position, a spring interposed between the under face of the tripper and the frame of the device to cause the tripper to assume a raised position from a lowered position, means interposed between the type roller and ink roller to cause the rotation. of the type roller in a reverse direction to that of the type roller, said means consisting of a plurality of gears, intermeshing, one of which is held to the shaft of the type roller and one of which is mounted on a cuff the disk, which dog engages the ratchet, and means to cause the ink and type rollers to travel equi-distances or at the same peripheral rate of speed, said lastn'lentioned means comprising cams, one provided upon the type roller and the other being the enlarged end of said dog, said enlarged end having a series of teeth on its inner face, said cams, when contacting, throwing said dog out of engagement with the ratchet, and throwing said teeth on the enlarged end of the dog in engagement with the ratchet in lieu thereof, thereby causing the rollers to travel at the same rate of speed while the type is contacting the ink roller, and only while in contact, and means to cause the cam carried by the ink roller to assume a normal position, said means causing the ink roller to rotate in a reverse direction only when contacted, atother times the dog clicking over 20 the teeth of the ratchet giving the same a new position upon the ratchet tor each new stroke.

In testimony whereof I atnx my s1 gnature in presence of two witnesses.

JOHN A. l VHI'JTTENGTON.

Witnesses WV. WHITE, R. B. ROWLAND.

Copies of this patent may be obtained for five cents each by addressing the Commissioner of Patents. Washington, D. G.

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