US833185A - Plate printing and embossing press. - Google Patents

Description

PATENTED OCT. 16, 1906.

G. TURNER. PLATE PRINTING AND EMBOSSING PRESS.

APPLIOATION FILED APR. 29. 1905.

INVENTOR 9L7 AT URN E Y5.

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PATENTED OCT. 16, 1906.

H. G. TURNER. PLATE PRINTING AND EMBOSSING PRESS.

APPLICATION FILED APLZG. 1905 3 SHEETS-SHEET 2 //VVNTOR THE Nam-us PETERS C0,. \vAsHmcrmv, o c.

PATENTED OCT. 16, 1906.

H. G. TURNER. PLATE PRINTING AND EMBOSSING PRESS.

APPLICATION FILED APR. 1905.

3 SHEETS-$31231 3.

WITNESSES! g/ //v VEN 70R ATTORNEYS.

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UNITED STATES PATENT OFFICE.

HARRY G. TURNER, OF CHICAGO, ILLINOIS, ASSIGNOR TO FREUND & TURNER, OF CHICAGO, ILLINOIS, A FIRM.

Specification of Letters Patent.

Patented Oct. 16, 1906.

Application filed April 29, 1905. Serial No. 258.033-

]'0 (ZZZ whom it may concern;

Be it known that I, HARRY G. TURNER, a citizen of the United States of America, and a resident of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Plate Printing and Embossing Presses, of which the following is a specification.

This invention relates to that class of printing-machines in which the printingplate consists of a die having a design depressed into its surface, the inking of the die being accomplished by filling the depressions and surface with ink and then removing the surplus ink from said surface.

The main objects of this invention are to provide in a machine of this class improved wiping devices for the removal of surplus ink from the plate, to provide improved means for varying the degree of the wiping action to suit the character of the ink that is used, to provide means for relative adjustment between the die and wiping-pad to suit dies of various thicknesses, to provide improved mechanism for intermittently feeding a web of paper over the surface of the wipingpad, to provide improved and simple mechanism for causing a relative rolling and sliding contact between the opposed surfaces of the die and wiper, and to' provide suitable mechanism for causing the die to reciprocate between the platen and the inking devices through the continuous rotation of the wiper in one direction. I accomplish these objects by the device shown in the accompanying drawings, in which- Figure 1 is a front elevation of a plateprinting and embossing press constructed according to my invention, the die being shown in its position of contact with the wiper. Fig. 2 is a side elevation, on an enlarged scale, of the wiping and die-moving mechanism. This view shows the device as viewed from the right of Fig. l, but with the inking devices and impression mechanism removed. Fig. 3 is a front elevation of the cam mechanism and gearing for controlling the relative movement of the wiper and die, the shaft of the cam being shown cut on the line 3 3 of Fig. 2. Fig. 4 is a detail of one of the spindles for carrying the roll of wiping-paper. Fig. 5 is an end elevation of the same, the adjusting-nut and adjacent cone at said end being removed. Fig. 6 is a top plan of the plate for controlling the vertical adjustment of the die. Fig. 7 is a top plan, partly broken away, showing the details of the clamp for securing the die-holding chuck. Fig. 8 is a detail, partly broken away, of the wiping-pad, showing the clamp for securing the padding.

-The drawings illustrate my invention as applied to a hand-operated plate printing and embossing press. In the construction shown the press 4 ismounted upon a table 5, upon which are also mounted at one side of the press the inking and wiping mechanisms. The inking mechanism consists of a roller 6, dipping into a trough 7 of ink, and a flexible rubber swab 8 for partly removing the surplus ink applied to the die by the roller 6. The swab 8 is provided with a trough 9, which conducts to a receptacle 10 the ink removed by the swab.

The wiping mechanism is mounted upon a bracket 11, secured to the lower surface of the table 5, at a point intermediate between the press 4 and the inking devices. The member 12, which carries the wiping-pad 13, is carried by a shaft 14, which is journaled in the bracket 11 and carries on its inner end a cam 15, which will be hereinafter described. The member 12 is provided with three radiating arms. The arm 16 is provided with a handle 17 for rotatingthemember 12 and carries at its end the wiping-pad 13. This pad consists of a curved plate or sector, having the center of its curvature at the center of the member 12. The convex surface of the pad 13 is preferably covered by a layer 18 of felt, which is held in position by clamps at the ends of the pad. One of the clamps is shown in detail in Fig. 8 and consists of a cam 20, eccentrically mounted in supporting-lugs 19. The cam 20 may be turned by a screw-driv er engaging the slotted end of the shaft 21.

The arms 22 and 23 each carry a spindle 24 and 24 disposed in parallel relation with the shaft 14. A split spool 25 is mounted upon the spindle 24, and said spindle is provided with a pair of cones 26 for expanding the spool to cause the same to fit tightly within a roll of paper. The outer cone 26 is loose on the spindle 24 and is forced into the conical seat 27 of the split spool by means of a nut 28, which is mounted on the outer threaded end of the spindle 24. Interposed between the l cone 26 and the nut 28 is a washer 29, which is splined a; the spindle, so as to prevent frici interposed between the washer 29 and the with expanding-cones.

adjacent cone 26 and affords friction to resist the rotation of the spindle and maintain a tension upon the web of paper. Said web and rolls of paper are indicated by the dotted lines 31 in Fig. l.

The spindle 24 carries a spool 32, similar in size to the spool 25, but not split nor provided Rotation of the spool 32'isfrictionally controlled'by a nut 28 and washers 29 and 30, as in the caseof the split spool 25. v The spool 32 has rigidly secured thereto at one end a ratchet-wheel 33, and the spindle 24 has loosely mounted thereon adjacent to the ratchet-wheel 33 an arm 34, upon which is mounted a springpressed pawl 35-, which engages the ratchet-wheel 33. The arm 34 is free to swing on the spindle 24 in an upward direction from the position shown in Fig. 1; but its relative movement in the opposite direction is limited by means of a pin 36", whichengages a stop on the arm 22. The'bracket' 11 is extended below the mem- [her-12 and has a pin 37 extending across the 'pathof the arm 34.

ranged that said spool will-be rotated and wind up a section of the web of paper when the arm 34 comes in contact with the pin 37. This contact will cause the arm 34 to swing on its pivotal connection with the arm 22 until the end .of the arm 34 is free fromthe pin 37 After passing the uppermost posi-- tion the arm 34 falls and assumes its normal position in alinement with the arm 22. This action is caused by gravity on account of the loose connection between the arms 34 and 22.

The pin 37- is adjustable in the slot 38, and thus permits of adjustment of the angular movement of the arm 34 with respect to the arm 22. The frictional connection between the. spool 25 and its spindle prevents said spool from unwinding and causing a slackening of the web of paper when the arm 34 returns by gravity to its normal position with respect to the arm 22.

The die 40 is mounted on the lower side of an arm 41, which is rigidly secured to the shaft 42, journaled inthe supporting-frame at one side of the members 4. The wiper, inking devices, and the platen 43 of the press are all arranged in the arc of a circle corresponding to the path of the plate 40 when the arm 41 is rotated. The arm 41 and shaft 42 are vertically slida-ble in their bearings and are normally urged upwardly by the spring 44.

The die 40 is cemented or otherwise secured to a chuck 45, which is clamped between the aws 46 and 47. on the arm 41. The

I jaw 46 is adjustable, and its movement is guided by a pair of dowels 48. Adjustment of the jaw 46 is effected by the screw 49, which extends loosely through the jaw 46 and is threaded into the end of the arm 41. The jaw 46 is preferably urged outwardly by a spring 50. This arrangement is shown in Fig. 7.

The arm 41 is limited in its rotation by stops 51 on the bracket 52, and said arm is normally urged toward its limiting position at the right of Fig. 1 by means of the spring 53. The mechanism for moving the arm 41 consists of a beveled pinion 54, which is splined to the shaft 42, a bevel-gear sector 55, which is pivotally mounted in the frame at 56 and meshes with the pinion 54, and the roller 57, which is journaled on the sector 55 and bears upon the face of the cam 15. The cam 15 is rigid on the shaft 14.

The cam 15 is provided with an extensionplate 58, which changes the position of the arm 41 when the die is in the vicinity of the wiper 13. provide means for changing the speed of movement of the die with respect to the speed of rotation of the wiper, so as to control the relative area of paper used for wiping each unit of the surface of the plate. This adj ustment is desirable, as it is found that colors or kinds of ink require different lengths of wiping-surface. Different adjustments are provided by substituting different plates 58. The lowest part 59 of the cam corresponds to the extreme position of the arm beyond the inking-roller 6, and the highest point 60 of the cam 15 corresponds to the position of the die when immediately below the plunger 61 of the press. The part 60 of the cam is preferably made slightly concave, so that the operator will be able to stop the mechanism with the die exactly in its printing position below the plunger 61.

The upward movement of the arm 41 under the action of the spring 44 is limited by a collar 70, which has a pair of upwardly-extending pins 71 passing through lugs 72 on the bracket 52. These pins are provided with springs 73 which normally urge the collar upwardly and prevent said collar from dropping when the arm 41 is in its printing position and is lowered through the action of the plunger 61. A plate 66, hinged to the bracket 52, bears on the upper ends of the pins 71 and is adjusted, by means of a bolt and thumb-nut 67, to control the position of the collar 70, and thereby adjust the plate 40 with respect to the wiping-pad. This adjustment is to provide for plates 40 of various thicknesses.

The 0 eration of the device shown is as follows: T e operator grasps the handle 17 and rotates the member 12 in a right-handed direction. The spring 53 urges the arm 41 toward the direction of the inking devices, and

The object of the plate 58 is to IIO the cam 15 and roller 57 serve to force said arm in the opposite direction against the action of said spring. The sheet which is to be printed is laid upon the platen 43 or upon an impression-plate 74, seated on the platen 43, and the die 40 is forced down upon the platen by means of the plunger 61. In Figs. 1 and 2 of the drawings the die is shown in the position of contact with the wiper. At this time movement of the die is in the direction of the arrow 75, and the wiper is rotating in the direction of the arrow 39. The wiper thus takes up the ink from the advancing edge of the die and successively presents new cleaning-surfaces of paper to the succeeding parts of the die. As the rotation of the wiper is in the opposite direction from the movement of the die, it will be seen that the wiper has both a rolling and sliding contact with the die. The area of the wiping-paper which is presented to each unit of area of the die depends upon the speed of the movement of the die as compared with the speed of rotation of the wiping-pad. This relation is controlled by the shape of the cam 15, and said shape is varied to suit difierent conditions by means of the detachable plates 58, which have already been described. As the member 12 rotates the arm 34 comes into contact with the pin 37 and turns the spool 32, winding up a portion of the web 31. The amount of such winding is controlled by the position of the pin 37, which may be adjusted so thatsaid winding will correspond with the length of the web which is soiled at each wiping operation. As the rotation of the member 12 continues the arm 34 will be caused to return by gravity until stopped by the stop 36 in its normal position of alinement with the arm 22. When the plate 40 is in the printing position, the plunger 61 is forced down and carries with it the arm 41. When the plunger 61 is again raised, the spring 44 lifts the arm and die. The operator now continues the rotation of the wiper, and the die is carried back to the inking devices. The die has contact with the wiper only when inked and moving toward the printing position. Rotation of the crank 17 causes the arm 41 'to oscillate between its printing and inking positions. During the wiping action the swab 8' removes the thick ink from the advancing edge of the die and also removes some of the ink from its under surface, and the die then passes into contact with the wi er, as has already been described.

t will be seen that numerous details of the construction shown may be altered without departing from the spirit of my invention.

What I claim as my invention, and desire to secure by Letters Patent, is

1. In a press of the class described, the combination of a frame, a die movable edgewise toward and away from its printing position in said frame, a member rotatably mounted in said frame and having thereon a wiper in the form of a segment of a cylinder arranged concentric with the axis of rotation of said member, the path of said die being tangential to the path .of said wiper, mechan-- moving toward its printing position.

2. In a press of the class described, the combination of a frame, a die movable edgewise toward and away from its printing position in said frame, a member rotatably mounted in said frame and having thereon a wiper in the form of a segment of a cylinder arranged concentrically with the axis of rotation of said member, the path of said die being tangential to the path of said wiper, mechanism for rotating said member, and mechanism for moving said die backward and forward across the path of said wiper, said mechanism being arranged to bring said wiper and die into opposition only when moving in relatively opposite directions.

3. In a press of the class described, the combination of a frame, a die movable edgewise in said frame, a'member journaled in said frame on an axis transverse to the path of said die, a segmental wiper on said member and adapted to have wiping contact with said die during a portion of the rotation of said member, a web of wiping material extending across the periphery of said wiper, spools on said member for the ends of said web, means for rotating said member, and mechanism for causing said die to move across the path of said wiper in a direction opposite to the'rotation of said member, when the wiper is in a position of opposition to said die.

4. In a press of the class described, the combination of a frame, a die movable edgewise in said frame, a member journaled in said frame on an axis transverse to the path of said die, a segmental wiper on said member and adapted to have wiping contact with said die during a portion of the rotation of said member, a wiping-web extending across the periphery of said wiper, spools on said member for the ends of said web, means for rotating said member and mechanism connecting said member and die and adapted to cause said die to move forward and backward through the rotation of said member, said mechanism being arranged to move said die in a direction opposite to the rotation of said member when said wiper is in contact therewith.

' 5. In a press of the class described, the combination of a frame, a die movable edgewise in said frame, a member journaled in said frame on an axis transverse to the path of said die, a segmental wiper on said member and adapted to have wiping contact with said die during a portion of the rotation of said member, a wiping-web extending across the periphery of said wiper, spools on said member for the ends of said web, means for rotating said member, and mechanism for shifting said web along the wiper during a certain interval of the rotation thereof.

6. In a press of the class described, the combination of a frame, a die movable edgewise in said frame, a member journaled in said frame on an axis transverse to the path of said die, a segmental wiper on said member and adapted to have wiping contact with said die during a portion of the rotation'of said member, a wiping-web extending across the periphery of said wiper, spools on said member for the ends of said web, means for rotating said member, mechanism for shifting said web along the wiper during a certain interval of the rotation thereof, and means for regulating the extent of such shiftin 7. In a press of the class described, the combination of a frame, a die movable edgewise in said frame, a member journaled in said frame on an axis transverse to the path of said die, a segmental wiper on said member and adapted to have wiping contact with said die during a portion of the rotation of said member, a wiping-web extending across the periphery of said wiper, spools on said member for the ends of said web, means for rotating said member, a ratchet-Wheel se-' cured to one of said spools, an arm loosely journaled on said member concentrically of said spooland normally urged to assume a certain radial position, a pawl on said arm meshing with said ratchet, and a stop on said frame adapted to engage said love rduring the rotation of said member and cause said pawland-ratchet mechanism to shift the web.

8. The combination of a press, an inker, a die movable between said press and inker, a wiper rotatably mounted in the path of said die and havin a convexly-curved face adapted to'have sliding and rolling contact with the die, means normally urging the die toward one limit of its movement, and a cam connected with said wiper and adapted to coact with said means for controlling the position of said die.

9. The combination of a press, an inker', a die-carrying arm mounted to swing about an axis for carrying the die back and forth between said press and inker, a gear for swinging said arm, a wiper rotatably mounted in the path of'the die and adapted to have rolling and sliding contact therewith, a cam connected with said wiper, and a sector meshing with said gear and coacting with saidcamfor controlling the position of said arm.

10. Thecombination of a press, an inker, a die carrying arm mounted to swing about an axis for carrying the die back and forth between said press and inker, a gear for swinging said arm, means'n'ormally urging said arm toward one limit of its movement, a wiper rotatably mounted in the path of the die and adapted to have rolling and sliding contact therewith, a cam secured in axial alinement with said wiper, and rotatable therewith, a sector meshing with said gear and coacting with said cam and means for controlling the position of the die through the rotation of said wiper, and means for rotating the wiper.

11. The combination of an embossingpress, a bracket at one side of said press, a vertical shaft journaled in said bracket and movable longitudinally therein, a die-carrying arm on said shaft, awiper located along the path of the die to engage the same when said arm is rotated, yielding means for urging said arm vertically away from the wiper, a collar on said shaft, a plate pivoted to said bracket and bearing on said collar, and an adj usting-screw between'said plate and bracket for adjusting the collar vertically and thereby adjustin the die with respect to the wiper.

Signe at Chicago this 10th day of April,

HARRY G. TURNER. Witnesses:

E. A. RUMMLER, GLEN C. STEPHENS.

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