US1557756A - Device for taking printers' proofs - Google Patents

Description

3 Sheets-Sheet 1 JQYI/JJVI'OJB C. CHISHOLM DEVICE FOR TAKING PRINTERS PROOFS Filed Nov. 14. 1923 Oct. 20, 1925.

PROOFS (sah H. N MN lllllufi|||||llllllllll|llllllllllall m WH .H. -H H|H NHHIPI :1 l I F| ll H Filed NOV. 14, 1923 ;u...........m...............u.........-M...,...J r i Oct. 20, 1925.

Oct. 20, 92 I 1,557,756

C. CHISHQLM DEVICE FOR TAKING PRINTERS PROOFS Filed Nov. 14. 1923 5 Sheets-Sheet 3 Patented Oct. 20, 1925.

UNITED amen.

CLIFTON CHISHOLM, or CLEVELAND, onto, ASSIG'NOR T0 arm; MULTI- :G'RAPH COMPANY, or CLEVELAND, ornojA CORPORATION or 01110.

DEVICE non TAKING rewr tes moors.

Application filed November 14, 19-23. Serial No. 674,653.

This invention relates to mechanism for takin a proof of freshly produced and asse n led printing members without requiring removal from the assembling machine. My prior application N0.'535,311 filed February 9, 1922, discloses a machine for forming embossed printing strips with fianged'edges. An application of l/Villiam J. Demmin r, executed November 1, 1923, and filed N ovember 14,1923, discloses an automatic mechanism for delivering such embossed strips and assembling them one after the other, on a flexible blanket mounted on a segmental drum and turned step by step for successive lines, such blanket when loaded being transferred, ready for use, to a suitable printing machine. I have .discovered that I can use this same drum without removal from the machine for taking an effective proof of the assembled page of strips. The present invention includes the combination with means for producing and delivering printing members of means for taking a proof thereof in .the same machine; also, more particularly, the embodiment of the proof taking device illustrated in the drawings hereof, as well as various equivalents therefor..all as summarized in the appended claims.

In the drawings, Fig. 1 is a sectional. front elevation of a portion of an embossln'gmechanism, aportion of the delivery mechanism thereof, and strip-receiving blanket mounted on a drum; Fig. 2 is a plan on a larger scale of the drum and blanket and means cooperating therewith to enable the taking of a proof;Fig. 3 is a sectional end elevation of the parts shown in Fig. 2; Figs. 4 and 5 are details illustrating the indexing mechanism and means for locking it in inactive position; Fig.4 being a horizontal section on the line 44 of Fig. 3, and Fig. 5 being a vertical section on the line 55 of Fig. 4; Fig. 6 is a perspective of the attaching device for an inked ribbon;

g- 7 is a enl rged cross ect nlof t an e g r a th en o th inked ribbon, i

e er ng b efiv o th 'cem in tion bf me an sm "il u tra d F gindicates a die carrier'mounted for reciproca t on ona gu de and car ying-ma ej ma e d es f r em oss ng a on inuous fl g d s ip dica d at 1 llo in the positioning of the die carrier, which maybe controlled by a keyboard, cams 9 act as levers 8 to move selected dies toward each other to effect the 'embossin'g, after which the strip is fed -one ste'p, After-a line is embossed ashortsection is'sheared out'of the strip, as indicated by thespace 12. A suitable pusher member, indicated at 13, swings down into engagement with the em; bossed and sheared-off portion 14, and shoves it toward {the right. "In this-movement the strip passes between rolls 15 which curve inwardly the flangededges, and then passes onto a guide 16.

The strip receiving blanket 20 is'preferably a thin sheet of metal having struck: up from it, rows of'raised buttons 21 with overhanging edges, and with corrugations 22 between the buttons, as shown and claimed ,in Patents Nos. 1,438,584 and 1,438,582, issued December 12th, 1922, .to William J. Demming and B. J. Craig,re spectively. This blanket is removably held on a segmental drum 30. As shown, this drum has parallel rails '31, and the blanket has an inturned edge.23,"which liesbetween,

any adjacent pair of rails and anchors the blanket at that end. An inturned rib 24 on the other end of the blanket engages a lip 32 on an arm 34.j0ur'naled-on the shaft 35 of the drum. Set screws 36 force this arm away from the adjacent portion of the drum segment to hold the blanket taut. This feature, as well as the mechanism about to be described, for automatically loading the strips onto the blanket is claimed in the c0-pendir1g application of William J. Demming,heretoforementioned.

Extending between the delivery rolls 15 is shown a hook 40 which is connected to a suitable sliding bar 41 and is adapted to engage the'left hand of the delivery strip. This slide bar 41 is connected to an intermediately pivoted lever 42. Slidably mounted on the frame ofthe load mechanism is a reciprocating-carriage 45 having a rocking hook 46. Suitable mechanism of which a lever 48 and a link 49 is shown in Fig. 1, moves the carriage toward the left. In this movement the carriage abuts the lower end of the lever 42 and draws the bar 41 and hook 40 toward the right, advancing the embossed strip beyond the rolls 15; then the hook 46 on its return movement toward the right, swings toward the rear and engages the strip and draws it on to the blanket.

During the loading, the blanket is held in proper registration with the rail 16 by means of a snubbing pin 50 pressed outwardly by a spring 51 so that its nose engages in one of the recesses 22 in the blanket.

This simple and automatically registering lock is claimed in my prior application No. 583,188 filed Aug. 21, 1922. On the shaft 35 of the drum is' shown a disc collar 54 with which coacts a clutch roller 55 carried by rocking plates 56 and 57. The plate 57 is shown as resting on a bell crank 58 connected by a link 59 with a bell crank 60 carrying a dog 61. This dog is so formed that the carriage 45 may pass it idly when the carriage moves toward the right. On the return movement. of the carriage, however, the dog is engaged and the bell-crank 60 rocked downwardly thus rocking upwardly the plate 57 and turning the drum suiiiciently to bring a new row of buttons into registration with the roll 16. During this action the snubbing pin 50 is cammed backwardly, and then returns to position the succeeding row.

Means are provided to hold the snubbing pin 50 in idle position. The means shown comprise a pivot latch plate having a cam slot 66 adapted to coact with a pin 67 projecting laterally from the snubbing pin 50. The latch plate is normally held in idle position by a spring 68. Downward pressure, however, on an overturned lip 69 on its upper end, causes the outer edge of the cam opening to withdraw the snubbing pin, after which it is held in this position by the force of the pin 67 against an outwardly inclined edge of the opening adjacent the top.

It will be understood fro-m the mechanism already described (part of which is my invention and part the invention of Will am J. Demming) that there is provided mechanism for embossing flanged printing strips and mounting them side by side on a flexible blanket mounted on a rotative drum. In the present invention I have provided additional means for utilizing this same drum with its loaded blanket for taking a printers proof before the blanket is removed from the drum for transference to a printing machine. The additions which make this result possible will now be described.

I extend, toward the right, the shaft 35 of the drum and mount on this a suitable crank 0, by which the drum may be readily rotated when the latch 65 has been shoved downwardly to withdraw the snubbing pin. I preferably counterbalance this crank by suitable counterweight, as for instance, the counterweight 71, (Fig. 3) formed'on the internal arm 34.

I provide a pair of rearwardly extending brackets 7 3 and 74 (which may be arms on the standards 76 and 77 carrying the drum shaft 35) and between the rear ends of these arms I mount a roller platen 80 adapted to coact with the blanket, as hereinafter described.

The roller platen 80 is formed about a central core or shaft 81 which has depressions in its ends. Into these depressions extend spherical heads of pins 83 and 84 carried by the standards 73 and 74 respectively. The head on each pin is located eccentrically with reference to the body of the pin, so that when the pin is turned on its axis, the platen may be caused to approach or recede from the blanket.

Each pin 83 or 84 is locked in position by a suitable set screw 86. The pin 84 has a head 85 by which it may be turned and is preferably locked tightly; the pin 83 however, is slidable in a bushing 87 which has a head 89 and is locked by the set screw 86. A spring 88 tends to keep this pin 83 in position of engagement with the platen but allows the platen to be shifted toward the left and thereby freed from the opposite pin. By this means the platen may be readily removed and replaced whenever desired.

I mount on the drum, in the space between the ends of its segmental surface, a device for holding the end of an inked ribbon. Such device is illustrated in Figs. 3 and 6 and comprises metal clips 90 screwed to the inner face of the two ends of the drum respectively, each clip having a portion 91 projecting parallel with the axis, this portion 91 having its edges 92 and 94 curled toward each other. Fig. 7 shows at 95 an anchoring bar clamped on the end of a short inked ribbon 96. This bar is shown assomewhat spread for clearness; the bar is doubled snugly in itself to clamp the ribbon between the two portions 97 and 98 of the bar and then a portion 99 of the bar is bent over to complete the clamping and effectively lock the ribbon to the metal strip. 7

This anchoring strip is inserted in the two clips 90. This may be readily done by sliding the strip endwise into engagement with a clip and then drawing it backward slightly to cause its other end to occupy the other clip. Some of the fabric is omitted adjacent one edge as shown at 96 to facilitate this operation.

' mamas The ribbon. 9 6 is of suflicienti length to reach nearly around the drum and when I installed it hangs freely from the drum.

Now when the snubbing pin is latchedvinto idle position, the drum may be readily r0.-

tated; in the direction to roll the anchored,

endof the ribbon ,first downwardly past the I platen. In-such-movement a sheet of paper upon the paper.

(indicated by the broken line 100 in Fig. 3) may be inserted between the ribbon platen and thus as the rotation is continued, the.

embossed strips, through this ribbon print It is to be understood that theeccentric pins supporting the platen are first adjusted by trial, to give the, desired impression on paper of the character employed.

As one rotation of the drum is about completed, the operator moving the crank with are then preferably removed.

isuitable modifications may enable it to op;

-suitable printing mechanism one hand, receives the printed proof sheet with the other behind the machine. If on inspection of the proof an error is found, the erroneous strip is removed and the drum is positioned to bring the corresponding row.

of buttons into receiving position and a new strip; is embossed and inserted, and a proof taken if desired. The rlbbon and platen no errors, or after they have been thus corrected, the blanket is readily removed by releasing theset screws 36, and the blanket is now: in condition to be transferred to a print.

It should be understood that while I have shown my proof taking devices adapted specifically for assembled embossed strips,

erate with other printing members. As at present advised, I believe myself to be the first to combine in one machine mechanismsv for producing printing. members for assembling them in a form and for then taking a proof of them, and I do not intend to limit myself in the protection claimed further than the prior art may require.

Having thus described my invention, I claim:

1. The combination, inone machine, of

mechanism for producing printing mem-.

bers, mechanism for assembling them in .a form, and mechanism for taking a proof ofthem while assembled.

2. The combination with mechanism for producing printing members, of a removable printing blanket adapted to carry such members, mechanism for transferring the members onto the blanket, a mechanism for taking a printers proof while the blanket is in the same machine. I r

3. The combination with means for producing printing members, of a rotary drum provided with means for holding such members, mechanism for loading the printing members onto the drum, a platen adapted If there are I and used to to coact with such members on the drum, and mechanism for, rotatingthe drum to im-., press paper between it in, the platen.

4.. The combination with. means for delivering printing members, of a rotary drum, a removable blanket thereonadapted to receive such members, mechanism for loading the members on the blanket, and a,

platen adapted to coact with themembers blanket is. in the mechanism for loading printing members onto theblanket while on thedrum, a platen adapted to coact-with such membersonuthe blanket, and mechanism for rotating the drum to impress paper between it in the platen. v

8. The combination with means for deliverlng printing strips, of 'a rotary drum,$

aremovable blanket thereon adapted to receive such strips, mechanism for loading thestrips on the drum, and a platen adapted to coact with the drum while the drum is in the machine, whereby a proofv may be taken without requiring removal of the blanket. i i

9. The combination with, a rotary drum, of a. removable blanket mounted thereon having strip holding means, mechanism: for

sliding flanged printing strips onto the.

blanket, a platen adaptedto coact-with such strips onthe blanket and mechanism for. rotatingw the drum to impress. paper between it in the platen.

v 10. The combination with embossing mechanism, of a rotary drum adapted. to carry a removable blanket, mechanism for transferring embossed lines from the embossing mechanism to the drum, and a platen adapted to coact with the drum while it is in the machine, whereby a proof may be taken without requiring removal of the blanket.

11. The combination of a rotatable drum segment, a blanket removably held thereon, mechanism for loading printing members, successively onto the blanket, a platen adapted to coact with the drum, and means carried by the drum for anchoring the forward end of an inking sheet.

12. The combination with means for deliveringprinting members, of a rotary drum segment, a blanket carried thereby having rows of holding devices on which the members may be mounted, an inking sheet having its head end fastened to the drum be tween the ends of the segmental portion thereto and having its other end free, and a platen adapted to coact with the drum when the same is rotated.

'13. The combination with a rotary segmental drum, of means for clamping thereon a device to hold printing men e a short section of inking sheet, means for choring the forward end of the sheet in the open space between the ends of the segmental surface of the drum, and a platen coacting withthe ribbon and blanket.

14. The combination of a rotary *egmental drum, means for rotating it, a platen adapted to coact therewith, a blanket removably mounted on the drum and having means for holding lines of p "inting members, and an inking sheet having its forward end anchored to the drum and its opposite end free.

15. The combination of a rotary segmental drum, means for rotating it, a platen adapted to coact therewith, a blanket removably'mounted on the drum and having means for holding embossed strips, a series of embossed strips mounted on the blanket and an inking sheet having its forward end anchored to the drum and its opposite end free.

16. The con'ibination with a rotary drum, of a blanket removably mounted thereon, mechanism for feeding the drum step by step, a mechanism for moving printing members onto the blanket, mechanism for rotating the drum, and a platen coacting with the drum in such rotation.

17. The combination with a rotary drum, of a blanket mounted thereon,- detent mechanism for holding the drum in position, mechanism for feeding it step by step, mechanism for moving printing members onto the blanket, mechanism for throwing out of action the detent mechanism, mechanism for rotating the drum, and a platen coacting with the drum in such rotation.

18. The combination with means for loading printing members, of a rotary shaft, a drum thereon, a blanket removably mounted on the drum, a mechanism for positioning such members one after another on the blanket, a roller platena dapted to coact with the printing members on the blanket, and mechanism for removably and adjustably supporting the platen in enacting position.

19. The combination with means for loading printing strips, of a rotary shaft, a segment drum' thereon, a blanket removably mounted on the drum, a mechanism forv positioning such strips one after another on the blanket, a roller platen, mechanism for adjusting the platen into coacting position, and a section of inking sheet having its forward end anchored to the drum, said sheet being adapted to pass with paper between the drum and platen.

20. The combination of a rotary shaft, a segment of a drum thereon, a blanket removably mounted on the drum segment,

clips mounted on the end walls of the drum between the ends of the segmental surface,

In testimony whereof, I hereunto aflix my signature.

CLIFTON GHISHOLM.

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