US763544A - Wiping device for plate-printing and embossing presses. - Google Patents

Description

No. 763,544.- PATBNTED JUNE 28,1904.

I W. E. DOWN.

WIPING DEVICE FORPLATE PRINTING AND EMBOSSING PRESSES.

ARPLIOATION I' ILBD AUG.18.1903. N0 MODEL.

3 SHEETS-SHEET 1.

PATENTED JUNE 28, 1904.

W. E. DOWN. WIPING DEVICE FOR PLATE PRINTING AND EMBOSSING PRESSES.

APPLIOATION FIL ED AUG. 18 1903.

110 MODEL.

3 SHEETS-SHEET 2.

I IIIZIIIIIIJ w: ncmms PETERS o0, morouruu. wumnmcmna No. 763,544. PATENTED JUNE 28, 1904. W. E. DOWN.

WIPING DEVICE FOR PLATE PRINTING AND EMBOSSING PRESSES.

. APPLICATION FILED AUG.18,1903.

no MODEL. a SHEETS-SHEET a.

'awwntoz Wines; WJWM WZMM T as :0, PMO10-LITNO. wAsulNrTON n c UNITED STATES Patented June 28, 1904.

PATENT @FFIQE.

WIPING' DEVICE FOR PLATE-PRINTING AND EMBOSSING PRESSES.

SPECIFICATION forming part of Letters Patent No. 763,544, dated June 28, 1904.

Application fil ed August 18, 1903.

To all whom, it may concern.-

Be it known that LVVILLIAM E. DowN, a citizen of the United States,rcsiding at Camden,in the county of Camden and State ofNew J ersey, have invented certain new and useful 1mprovements in Wiping Devices for Plate- Printing and Embossing Presses, of which the following is a specification.

My invention relates to improvements in wiping devices for plate-printing and embossing presses; and itconsists of means for removing the ink from that portion of the die which comes in contact with a strip of paper or its equivalent passed between said die and the wiper and without removing the ink from the incisions in said die.

It further consists of novel details of construction, all as will be hereinafter fully set forth.

Figure 1 represents an end elevation, partly in section, of certain portions of a printingpress embodying my invention. Fig. 2 represents a side elevation of the press. Figs. 3 and 7 are side elevations, on an enlarged scale, of the wiping device and the plate to which it is attached. Figs. 5-and 6 are respectively end-and side views of a gear, rack, and connected parts by which the wiping-paper is rerolled. Fig. 4 is a fragmentary longitudinal section of the wiping device and embossing-dies.

Similar numerals of reference indicate corresponding parts in the figures.

Referring to the drawings, 1 designates the frame of the press, in which is journaled'the shaft 2, which has secured thereto a camwheel 3, provided with teeth 4, which mesh with a pinion 5, secured to the shaft 6, journaled in standard 7, and provided with a balance-wheel 8 and a fixed and a loose pulley 9 and 10 for purpose hereinafter described. The shaft2 has also secured thereon the crankwheels 11 and 12, which operate their respective pitmen 13 and 14 so as to impart a vertical reciprocating motion to they cross-head 15 and the parts carried thereby. The crosshead 15 is provided with guides or ways 16, in which is adapted to slide the wiping device 17, to' which a horizontal reciprocating motion is imparted by the cam 3, the levers Serial No. 169,850. (No model.)

18 and 19, and the links 20 and 21, it being noted that a rocking motion is imparted to the shaft 22 by the lever 23, secured thereto and operated by the groove 24 in the cam 3 The levers 18 and 19 support a roll of paper 25 or its equivalent, it being noted that said paper 25 is led from the roll to and under the bar 26, thenover a pad secured to the plate 27, and from said pad to and partly around the rollers 28, 29, 30, and 31. (See Figs. 2.and 7.) The roller 31 rotates in a trough 32, which contains a liquid to be applied to the paper 25 by said roller 31 and serves to prevent the ink from drying on said paper, thus removing any possibility of the latter cracking while passing around roller 31 in its passage to roll 33, which is secured to a shaft 34, journaled in the levers 18 and 19 and provided with gear-wheels 35, loosely fitted on said shaft 34 and which engage with racks 36, adapted to slide in blocks 37, pivoted at 39 in the frame 1, it being noted that said racks 36 are held in contact with the gear-wheels by springs 38. The gearwheels 35 (see Figs. 5 and 6) are provided with dogs 40, which engage with ratchetwheels 41, secured to the shaft 34, it being noted that the latter has secured thereto a ratchet-wheel 42,with which engages a checkpawl 43, pivoted to the arm 18 and which prevents the roll 33 from unwinding.

The links 20 and 21 are pivoted to crankarms 44, secured to a shaft 45, journaled in the wiping device 17, (see also Fig. 7,) so as to impart a rocking motion to said arms, it being noted that the arm 44 has pivoted thereto the link 46, whose free end is connected to the arm 47 pivoted at 49 in the wiping device 17, so as to impart a rocking motion to said arm, it being further noted that the throw of said arm may be adjusted by reason of the slot 48 therein. The plate 27 is provided with a shield or strip 50 adjacent the bar 26, it being noted that the paper 25 is passed between said shield and bar for a purpose hereinafter described.

Arms 54, secured to the shaft 45, move freely in the space between the ends of the bolts 51 and 52, which are fitted in lugs 53, that project from the plate 27, and serve as abutments for said arms 54 for a purpose hereinafter described. (See also Fig. 1.) It will be seen on referring to Figs. 1 and 3 that the arms 54 have pivoted thereto links 55, which transmit motion to the arms 56, secured to the shafts 57, so as to rock the latter, and consequently the cams 58, secured to said shafts, and so cause said cams to lift the springs 59, and consequently the plate 27, which rests thereon, so that the paper 25, which is in contact with the pads carried by the plate 27, may press firmly against the under side of the die 60 and wipe the ink therefrom without removing the ink from the incisions 61 in said die. (See Fig. 4.) The sheet 62 to be printed is placed upon the counter or male die 63, provided with raised portions 64, which coincide with the incisions 61, so that when the die 60 is brought to its lowermost point the sheet 62 is embossed and printed as usual.

The inking-roller (seen in Fig. 2) is operated in any well-known manner and applies the ink that it receives from a well (not shown in the drawings) to the die 60.

The operation is as follows: The loose end of the paper 25 from the roll supported in the levers 18 and 19 is passed through the wiping device 17, as hereinbefore described, after which said end of the paper 25 is se cured to the take-up roll 33, after which the press is put in operation, and assuming the parts to be in the positions seen in Fig. 2 it is apparent that when the ink-roller 65 leaves the die 60 the latter is supplied with ink, and the roller 65 then moves rapidly in the direction indicated by the arrow at to the ink-well, after which the cross-head 15 and several parts carried thereby are lowered by the rotation of the crank- wheels 11 and 12 and connected parts. A sheet 62 of paper to be printed and embossed is now placed upon the counter or male die 63, and the rotation of the cams 3 by reason of the grooves 24 therein causes the levers 18 and 19 to move in the direction indicated by the arrow 6 in Fig. 2, whereupon the links 20 and 21, by reason of the arms 44, turn the shaft 45, and consequently the arms 54, which, owing to the links 55, cause the cams 58 to lift the springs 59, and consequently the plate 27 and pads thereon, so as to bring the latter in alinement with the under side of the die 60, and when the arms 54 come in contact with the screws 51 52 (see Fig. 7) the turning of the arms 54 ceases and the wiping device 17 is advanced bodily by the pulling action of the levers 18 and 19 and causes the paper '25 to wipe or remove the ink from the under side of the die 60. While the wiping device 17 is moving in the direction indicated by the arrow C in Fig. 2 the cross-head 15 is descending, so that when the crank- wheels 11 and 12 have made half a revolution the levers 18 and 19 and roll of paper 25, as also the cross-head 15 and the several parts carried thereby, are brought into the positions seen in dotted lines in Fig. 2, whereupon it is apparent that the die 60 is brought in contact with the sheet 62 to be embossed and printed. When the levers 18 and 19 are moving in the direction indicated by the arrow 6 in Fig. 2, the gear-wheels 35 carry the racks 36 bodily with them, due to the friction between the teeth in the gear-wheels and racks, it being understood that said racks slide freely through the pivoted blocks 37 and that the gear-wheels 35 and racks 36 move together as one piece until the stops 66 on said racks abut against the blocks 37, whereupon the racks 36 cease to advance, and thereby cause the gear-wheels 35 to rotate in the direction indicated by the arrows (Z in Figs. 2 and 5, and owing to the dog 40 the ratchet-wheel 41, shaft 34, and the roller 33 are turned in a similar direction, thus causing said roller 33 to take up the slack in the paper 25. A tension device 67 prevents the paper 25 from being drawn too freely from the roll carried by the levers 18 and 19.

It will be noted on referring to Fig. 7 that when the arm 54 is brought in contact with the screw 51 and the wiping device 17 is moved in the direction indicated by the arrow E in said figure the bar 26, by reason of the arms 47, links 46, and arms 44, is brought toward the shield 50, so as to clamp the paper 25 between said bar 26 and shield 50, so that no paper 25 can be drawn from the supply-roll when the take-up roll 33 is winding upon itself the slack in that portion of the paper 25 that is between the wiping device 17 and said roll 33.

When the cross-head 15 is moved upward by the crank- wheels 11 and 12, the cam 3 returns the levers 18 and 19 from the position seen in dotted lines in Fig. 2to that seen in full lines in said figure, whereupon the gearwheels 35 are rotated by the racks 36, but produce no effect on the roll 33, owing to the fact that the dogs 40 ride freely over the teeth in the ratchet-wheel 41, and the roll 33 is prevented from turning in a direction opposite to that indicated by the arrow D in Fig. 5 by reason of the check-pawl 43 and ratchet-wheel 42. \Vhen the levers 18 and 19 are moving from the position seen in dotted lines to those seen in full lines in Fig. 2, said levers by reason of the links 20 and 21 will turn the shaft 45, and consequently the arms 54, and cause the latter to come in contact with the bolts 52, and thereby impart motion to the wiping device 17 and in a-dircction opposite to that indicated by the arrow d in Fig. 5, and during this time the bar 26 is moved away from the shield 50, so as to permit the paper 25 to pass freely between the same, and as the distance between the roller 31 and take-up roll 33 increases when the levcrs 18 and 19 are returning to their upright positions it is apparent that some paper 25 is drawnfrom the supplyroll and presents a clean portion to the pads on the plate 27, it being understood that the portion of the paper 25 which previously wiped the die was withdrawn from the pad on the plate 27 by the take-up roll 33.

It will be noted on referring to Fig. 3 that when the wiping device 17 is moving in a direction opposite to that indicated by the arrow 0 in Fig. 2 the cams 58 are in their lowermost positions, whereupon the plate 27 and pads thereon are brought to a point sufficiently below the under side of the die 60 so that the paper 25 on said pads does not come in contact with the die 60 when the wiping device 17 is moving away from the supply roll hereinbefore referred to.

The pressure of the paper 25 against the die 60 is regulated by the adjustment of the bolts 51 and 52, it being apparent that when the space between the ends of said bolts is increased the pressure of the paper against the die 60 is likewise increased, due in a greater extent to the turning of the cams 58, and which turning ceases only when the arms 54 abut against the bolt 51 when the wiping device 17 is moving toward the supply roll hereinbefore referred to.

The quantity of paper 25 taken up by the roll 33, and consequently the quantity of paper withdrawn from the supply-roll, is regulated by the adjustment of the space between the stop 66 and the block 37, it being apparent that the greater the space between these parts the greater the distance traveled by the gear-wheel 35 and rack 36, which move together as one, so that no rotary motion is imparted to the roll 33 until the stop 66 abuts against the block 37.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a device of the kind specified, a die adapted to be reciprocated vertically, a wiping device moving with said die, and means for imparting a lateral movement to said wiping device with respect to said die for wiping the latter.

2. In a device of the kind specified, a die adapted to be rcciprocated vertically, a wiping device moving with said die, means for imparting a lateral movement to said wiping device with respect to said die for wiping the latter, a wiping material carried by said wiping device and adapted to present a fresh surface at each wiping.

3. In a device of the kind specified, a die adapted to be reciprocatcd vertically, a wiping device moving with said die, means for imparting a lateral movement to said wiping device with respect to said die for wiping the latter, a wiping material, and means adapted to move said wiping material with respect to said wiping device, whereby a fresh surface is presented at each wiping.

i. A die adapted to be reciprocated, a wiping device adapted to move with said die, means for imparting a lateral movement to said wiping device with respect to said die, a supply of wiping material suitably supported and adapted to be moved bodily, in conformity with the movement of the die and wiping device.

5. A die adapted to be reciprocated, a crosshead moving with said die, a wiping device carried by said cross-head and adapted to be reciprocated therewith, means for moving said wiping device on said cross-head, a supply of wiping material carried adjacent said wiping device and suitably connected therewith, means for moving the supply of wiping material in conformity with the wiping device, means for taking up the slack and for holding the same, whereby when the wiping device returns to its normal position, a fresh supply of wiping material extends to the wiping device. I

6. A die adapted to be reciprocated, a crosshead carried by said die, a wiping device carried by said cross-head, wiping material carried by said wiping device and fed thereto from a suitable supply, a lever adapted to be suitably actuated supporting said supply, an arm connected with said lever and said wiping device, a roller suitably supported to which the free end of the wiping material is connected, and means for rotating said roller to take up the slack and for preventing return movement thereof, whereby a fresh supply of wiping material will be presented to the wiping device.

7 In a wiping device for a plate-printingand embossing press, means for reciprocating the same, laterally with respect to the die, a plate for supporting the wiping material and situated normally in a plane beneath the plane of the die, and means for elevating said plate whereby the same will properly wipe the die.

8. In a wiping device for a plate-printing and embossing press, means for reciprocating the same laterally with respect to the die, a plate for supporting the wiping material and situated normally in a plane beneath the plane of the die,means for elevating said plate whereby the same will properly wipe the die, and means for adjusting the degree of elevation of said plate.

9. In a wiping device for a'plate-printing and embossing press, a plate carried thereby, wiping material adapted to pass over said plate, and means for locking said material positively with said plate during the actual wiping.

10. In a wiping device for a plate-printing and embossing press, a plate for supporting the wiping material, means for passing a wiping material over said plate, a bar and means adapted to lock and release said bar whereby said bar acts to hold said wiping material against said plate during the act of wiping and to permit said wiping material to pass over said plate after wiping.

11. In a device of the kind specified, a die I respect to said Wiping device, and means for adapted to be reciprocated vertically, a Wippositively locking said Wiping material at the ing device moving With said die, means for proper time. imparting a lateral movement to said Wiping v 5 devices With respect to said die for Wiping the Witnesses:

latter, Wiping material carried by said Wiping l JOHN A. WIEDERSHED'I,

WILLIAM E. DOWVN.

device, means for moving said material With I S. R. CARR.

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