US1786153A

US1786153A - Appliance for operating upon sheets

Info

Publication number: US1786153A
Application number: US215362A
Authority: US
Inventors: James E Doyle
Original assignee: Individual
Current assignee: Individual
Priority date: 1927-08-25
Filing date: 1927-08-25
Publication date: 1930-12-23
Anticipated expiration: 1947-12-23

Description

Dec. 23, I930. J. E. DOYLE 1,736,153

APPLIANCE FOR OPERATING UPON SHEETS Filed Aug. 25. 1927 3 Sheets-Sheet 1 ""W W WI Dec. 23, 1930. J. E. DOYLE APPLIANCE FOR OPERATING UPON SHEETS Filed Aug. 25. 1927 a snets-sneet 2 Hau Dec- 1930. J. E. DOYLE 'APPLIANCE FOR OPERATING UPON SHEETS Filed Aug. 25. 1927 3 Sheets-Sheet 3 Q! l n.

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Patented Dec. 23, 1930 PATENT OFFICE JAMES EQDOYLE, OF CLEVELAND, OHIO APPLIANCE FOR OPERATING UPON SHEETs Application filed August 25, 1927. Serial No. 215,362.

My invention pertains to an appliance adapted to cooperate with conveying mechanism for sheets from which certain portions have been severed, and more particularly, consists of a contrivance whereby the severed portions are positively and automatically removed while the sheet is appropriately guided and itsftravel mechanically pre scribed.

The drawings exemplify theapplication of the principles of my invention to what is known as a Miehle press, the platen of which is supplied in addition to type, with dies for severing certain portions of the'sheets to be of the die-cuttings which were completely severed became scattered about the press and many lodged upon the freshly printed sheets to cause off-set or smear, whereas those which retained their original locations, owing to the influence'of static electricity or, defective cutting, eventually had to be dislodged by tedious and time consuming manipulation. The object of my invention is to'avoid the disadvantages, heretofore prevalent, by means of cooperating agencies which have been practically demonstrated by successful performance in contractjobs. ,Specifically, my conception involves the application of a suction effect crosswise of or in opposition to the prescribed path of travel of one or more die-cuttings so that they are withdrawn into a suction nozzle, together with mechanismfor positively advancing a sheet I across the zone of suction effect and at timed intervals automatically releasing it. Another intermittently operating auxiliary agency'is provided and automatically operates to remove from a sheet, after it has reached the deposit table, any separated dis-v placed cuttings which became and remained on top of the sheet and could not be sucked through the holes in the sheet.

' It is to be realized that the scope of my invention comprehends many methods and constructions. The showing of the drawings and the particular description 'arelnerely specific exemplifications of a plurality of mechanical embodiments and arrangements.

.. being omitted in order to reveal the location printed; but, as heretofore performed, those equivalent cylinder printing press showing my appliance associated therewith, the paper sheet of a suction manifold and other parts.

Figure 2 is a longitudinal vertical section on line 2-2 of Figure 1.

Figure 3 is another view of portions of Figure 2 showing certain movable parts in different positions.

Figure 4 is an enlarged fragmentary view of a lesser portion of Figure 2 showing certain parts in the position which they occupy in Figure 2.

Figure 5 is a view correspondingto Figure 4 showing certain parts inthe position in which they appear in Figure 3.

Figure 6 is a vertical section viewe'd on line 66 of Figure 4.

Figure 7 is a fragmentary plan sectional view showing both suction manifold and blower nozzle, as they would appear on line 77 of Figure 2, excepting that the manifold appears in plan.

Figure 8 is a vertical cross-section on line v88 of Figure 2 to disclose the relation of certain supporting elements.

Y Figure 9 is an enlarged vertical cross-section through the suction manifold on line 30 99 of Figure 7. V

Figure 10 is an enlarged vertical cross section of a die for punching holes in the sheet. V Y Figure 11 is a plan view, on the same scale, 55 of one of the twenty dies.

Figure 12 is a plan view, incompletely deholes. p

Figure 13 is an enlarged fragmentary view of acompleted detail of Figure 12.

Standard press construction Theprinting press being of standard commercial design, will have only such parts thereof described as is necessary to a comprehension of the correlation andcooperation of my invention. Adapted for contact with a cylinder .1 is a reciprocating carriage 2,

which comprises an inking surface 3 and a platen 4. A fountain roller 5 is periodically in rolling contact with a transfer roller 6 and two groups of inking rolls 7 and another group 8 are purposed uniformly to distribute the ink in a. manner well known to the art. Spaced some distance above the carriage 2, is a composite frame 9 to be suppose as appropriately supported on standards, not shown. Mounted to turn on each of two shafts on the composite frame 9 is a crosswise extending row of seven rollers 10 and another correspondingly arranged row of seven rollers 11 respectively, around each longitudinally alined pair of which seven tapes 12 will travel. Four guide fingers 13 are adj ustably positioned over the upper run of the tapes 12. A paper sheet, after being printed, travels around the cylinder 1 and is projected onto the tapes 12, which carry it along underneath the fingers 13. The frame 9 is also provided, on each side, with a track l-l along which a roller carrier 15 will reciprocate in response to the actuation by a pair of links 16 articulating with two levers 17, which are connected with a rock shaft 18. Extending across the frame 9, a short distance below the tracks 1 1, is a rod 19, (see Figures 2, 6 and 8), the purpose of which is to support surfaces 20, six as shown in Figure 3, against which the paper sheet will be pressed and held during a portion of its forward travel in unison with the carrier 15, after the manner of my invention, as will be hereinafter explained. The usual sheet deposit table 21 is supplied with. the customary pile adjusting guides 22 which effectively define a receptacle in which the printed sheets are to be stacked.

Sheet drawing and releasing mechanism ltlounted across the reciprocating carrier 15 is a rod 23 having flat ends which are automatically caused to be raised and lowered in appropriate slots in the carrier when the latter approaches the two limits of its reciprocal movement, respectively. This connection prevents rotation of the rod 23 which will either occupy recesses 24, (see Figure 5), which are formed in two elements 25, which are slidably mounted at opposite lateral sides of the carrier, or will be raised against plungers 26, (see Figure 6) against the action of encircling springs 27. The raising action of the rod 23 is over cams 28. Carried in suitable spaced relationship on the composite frame 9, as appears in Figure 2, are a pair of

stops

29 and 30, against which opposite ends of the reciprocably mounted elements 25 will alternately impinge when the carrier 15 nears either limit of its movement. Figures 2 and 4 reveal the rod 23 in its lowered position and, as indicated by the direction arrows in those figures, the carrier 15 is moving toward the left. Presently, the left ends of the elements 25 will engage the stops 29,

just prior to the completion of the carriers movement to the left, thereby sliding the elements 25 and hence the cam surfaces 28 towards the right with relation to the rod 23, which acts to raise the rod 23 to the position in which it is shown in Figures 3 and 5 where it remains during the return travel of the carrier. Just before the carrier 15 reaches the end of its movement toward the right, the opposite ends of the elements 25 will impinge against the stops 30 and in consequence be slid to the left to cause the rod 23 to slide down the cam surfaces 28 as urged by the compression springs 27. Adjustably clamped along the rod 23 and depending therefrom are a series of arms 31 and adj ustably attached to the lower end of each arm 31 is an extension 32 terminating as a sheet-gripping shoe 33. As may be observed in Figure 8, six of the arms 31 are employed to correspond in numher with the surfaces 20 against which the forward end of a paper sheet S is periodically to be pressed by the shoes 33. Attention is directed to Figures 2, 10 and 11, where it will be seen that the platen 4 also carries a series of twenty dies 34 regularly interspersed with the type. The dies are depressible in the usual manner against the action of springs 35 and at the same time that a sheet is printed. While the platen moves underneath the cylinder 1, the relative compressive action of the latter, as it also rolls in contact with the dies 34, will cause the latter to punchsever twenty circular lines from the sheet. It is to be understood, that the delivery, from the cylinder 1, of each punched and printed sheet will be so timed, with reference to the reciprocal action of the carrier 15, that the forward edge of the sheet will reach the left ends of the surfaces 20 just when the impingement of the elements 25 with the stops 30 occurs, whereupon the rod 23 is depressed to cause the six shoes 33 to press the sheet S against the surfaces 20, preparatory positively further to advance it by a drawing operation and as it is seen to be doing in Figure 2. When the elements 25 impinge against the stops 29, the sheet S will be substantially over the deposit table receptacle 22 and the sheet is then released because the shoes 33 are raised, so that during the return movement of the carrier 15, as illustrated in Figure 3, the sheet S is permitted gravitationally to slip free and become deposited.

Directing attention to Figures 12 and 13 where the printed and punched sheet S is illustrated to have had round holes 36 cut therefrom, each of which is centrally located with respect to an annular printed pattern 37 to adapt the performance to use in conjunction with recording instruments. The holes 36 occasioned by the removal of round punchings 38, which may be supposed to be still adhering in Figure 12 and to have been removed in Figure 13. The punchings Suction appliance Some of the punchings 38 are initially entirely separated whereas many, even those completely severed, retain the positions which they occupied as integralparts of the sheet'owing to the influence of static electricity. Accordingly, it is desirable to effect their removal by other than a manual operation, which is slow and therefore expensive and further to preclude any punchings remaining unseparated when the sheets reach the deposit table 21, where their displaced presence would probably cause asmear of the freshly printed patterns. herefore, I have provided a suction appliance for automatically detaching and removing the punchings 38 before the sheets become deposited as a laminated pile. As illustrated in Figure 1, a motor 39 drives a suction fan rotatable in an appropriate casing 40, with the discharge outlet of which a receptacle 41 is connected.

Leading from the inlet of the suction fan casing is a conduit 42 which continues to a point underneath the delivery end of the lower run of the tapes 12 where, as disclosed in Figure 7, it connects with a manifold 43,

the branches of which communicate with a series of mouths 44 which are presented upwardly substantially on a level with the sheet supporting surfaces 20 and are spaced as a crosswise extending row according to the spacings of each crosswise extending row of dies 34 and hence of sheet punchings. The

mouths 44, as most clearly revealed in Figure Auxiliary blower As an additional safeguard against the presence of any punchings on a deposited sheet, I have provided an auxiliary blower for directing an air blast, fora short time, over each sheet after it is deposited on the table 21, together with automatically operating mechanism for intermittently causing a cessation of the air blast during the period of time while the succeeding sheet is settling upon the table. In Figure 1 will be seen another motor 46, for operating a blower 47, discharging into a duct 48 leading to the middle line of the pres-s and attached at its other end by means of a clamp 49 with a flared nozzle 50, the mouth of whichis disposed to direct an air blast obliquely downward across the pile of sheets in the manner shown in Figure 2. A valve casing 51.is interposed in the duct48 at one side of the press and is provided with a valve 52 adaptedto be turned by a rod 53, shown in Figure 8. The upper end of the rod 53 carries an arm 54 which is pivotally connected to a bar 57. This bar 57 is provided with two projections and 56, upstanding in spaced relation thereon,

whereas, the ends of the bar are movably' supported by means of links 58 and 59, .(see

Figure 1), with the composite frame 9. It

willbe noted that the links 58 and 59 are of the same length and in line with the arm 54, so that the linksand arm will move simultaneously.

- A bracket 60 is mounted on the carrier 15 and therefore reciprocates in unison with this carrier and the parts mounted thereon. This bracket 60 is provided with a depending portion 61 at the lower extremity of which a finger 62 is provided. This finger 62 moves in unison with the carrier 15 and in line with the projections 55 and. 56 and is therefore adapted to move the link 57 to the left or right as it strikes the stops 55 or 56, respectively. It will be understood, that the stops 55 and 56 are so located and the distance therebetween so selected that the finger 62 will give sufficient movement to the stopr55 or 56t0 move the arm 54 and hence to move the valve 52 from the completely open to the completely closed position or vice versa. The valve 52 isshown to be open in Figures 2 and 8, it having been opened by the impingement of the finger 62 with the projection 56. In the position of the parts shown in Figure 1, the finger 62 willnext impinge against the projection 55 to move it and therefore to turn the valve 52 to its closed position so as to H cause a cessation of the blast from the nozzle 50 before the shoes 33 release the sheet S preparatory to its deposition during the return movement of the carrier 15. Before the carthe projection 56 to open the valve 52 the blast from the nozzle 50 will blow away any punchings 38which may still chance" to be at the top'of the pile of sheets.

My invention is especially applicable when using sensitized paper, because the offset of printed impressions thereon is more likely to occur if any-cuttings remain loose upon the top of a sheet after it is deposited in the jogger box.

I claim: 1

1. In a printing press, the combination of a movable sheet carrier, a suction appliance for applying a suction to said moving sheet, mechanism mounted on-said carrier and including a movable fingeradapted periodically to press a paper sheetagainst said carrier While approaching said suction appliance,

and automatically operating means for actuating said finger away from said carrier after the sheet has passed said suction appliance.

2. In a printing press, the combintion of a suction appliance, a movable sheet carrier adapted to convey a sheet past said appliance, mechanism mounted on said carrier and including a movable finger adapted alternately to move toward and away from said carrier, and automatically operating means for actuating said finger toward said carrier to press a paper sheet thereagainst while approaching and to release the sheet after it has passed said suction appliance.

S. In combination, means for successively severing a series of portions from a blank and distinct successively functionating suction means for detaching and removing the severed portions.

at. In combination, means for conveying a sheet, means for severing a series of portions from said sheet at one stage of its conveyance and suction means for removing the severed portions at a later stage of its conveyance.

5. The combination of a series of cutting dies, mechanism including a cylinder for pressing a sheet of paper against said dies to sever portions of said sheet, means for'conveying said incisioned sheet from said cylinder and a suction appliance provided with an inlet opposed in proximity to the path of travel of said severed portions on said 0011- veying means.

6. The combination of a series of cutting dies, mechanism including a cylinder for rolling a sheet of paper against said dies to sever spaced portions of said sheet, means for conveying said incisioned sheet from said cylinder and a suction appliance provided with a plurality of correspondingly spaced inlets opposed in proximity to the paths of travel of said severed portions on said conveying means.

7. The hereindescribed method consisting in conveying a sheet which includes a severed portion held against gravitational deposition, and causing a suction effect to be exerted against the lower side of said portion.

8. In an appliance of the character described, the combination of a sheet conveyor, mechanism for severing a divisional area from said sheet, and a duct located apart from said mechanism and having opposed to the path of conveyed travel of the severed divisional area of said sheet a relatively larger inlet mouth.

9. In an appliance of the character de scribed, the combination of a sheet conveyor, mechanism for severing a divisional area from said sheet, and a duct located apart from said mechanism and having an inlet mouth opposed to the path of conveyed travel of the severed divisional area of said sheet, the advanced side of said mouth with refer- ,ence to the direction from which'said. sheet approaches being flanged as a downwardly curved lip whereby to insure uninterrupted travel of the sheet.

10. In an appliance of the character described, the combination of a sheet conveyor, mechanism for simultaneously severing crossed rows of portions from said sheet, a manifold having inlet openings opposed to the path of conveyed travel of said sheet, said openings being correspondingly spaced as are the severed portions composing one of said crossed rows and a suction agency connected with said manifold and adapted simultaneously to exert its influence upon to dislodge and remove the severed portions through months which are momentarily juxtaposed respectively and also adapted successively to exercise its function in respect to the severed portions composing a crosswise extending row.

11. In combination, a cylinder, a platen, mechanism for causing a rolling contact therebetween, dies carried by the platen for severing a portion from a sheet, mechanism for conveying the sheet from said cylinder and suction means for removing the severed portion during its conveyance by said mechamsm.

12. In combination, a reciprocating carrier for conveying and releasing a sheet, punching mechanism adapted to operate upon the sheet in transit, a nozzle located at the point of release of said sheet and beyond the point of operation of said mechanism, said nozzle being directed counter to the direction of movement of said carrier after its release of said sheet, a source of compressed air connected with said nozzle, a valve for controlling ejection of air from said nozzle and automatically operating means comprising elements carried by said carrier and spaced along the line of its travel and adapted alternately to open and close said valve.

Signed by me, this 1st day of Aug, 1927.

JAMES E. DOYLE.