US1440995A

US1440995A - Printing press

Info

Publication number: US1440995A
Application number: US402925A
Authority: US
Inventors: Hejl Josef
Original assignee: Individual
Current assignee: Individual
Priority date: 1920-08-11
Filing date: 1920-08-11
Publication date: 1923-01-02
Anticipated expiration: 1940-01-02

Description

FILED Aus. ll, 1920. 3 SHEETS-SHEET ATToRNi/i dan. 2, w23. 21,440,995

J. HEJL. PRINTlNG PRESS.l FILED Aue. ll. 1920. 3 SHEETS-SHEET 3 ATTORNE.

Patented dan., 2, i923.

JOSEF HEEL, 0F ROSENBERG, TEXAS.

reinante ranss.

Application filed August 11, 1920. Serial No. 402,925.

new and useful Improvements in a Printing.

Press, of which the following is a specification.

This invention relates to ne.7 and useful improvements in printing presses.

@ne object of the invention is to provide an attachment for a printing press of thc'cylinder type whereby the paper, as unwound from the ordinary roll, may be printed into sheets and cut for binding or foldinc The chief` advantage of the attachment if is in the fact that it may be readily applied to a simple form of printingI press now commonly used for printing sheets which have been previously cut and when so applied` the press will accomplish the same work which now requires the complex and expensive presses in use in printing newspapers and the like.

Another object of the invention is to provide an attachment for printing pl sses of the cylider or printing roller type, which will give the press much greater capacity, will require less labor to operate, and will make it possible to use paper which is put up in rolls rather than paper which is cut into sheets. thus resulting in economy in that the paper in rolls is considerably1 cheaper than that which is out intosheets previous to printin lVith the above and other objects in view1 the invention has particular relation to certain novel features of construction. operation and arrangement of parts, au erimple of which is given in this specification and illustrated in the accompanying drawings, wherein Figure 1 is a fragmentary side elevation of a printing press, showing the attachment, partially in section, applied' thereto.

Figure 2 is a fragmentary. horizontal. sectional view taken on the line 9f2 of Figure 1. y Figure 3 is a fragmentary. vertical. sectional view taken on the line of Five'- ure 2.

Figure i is fragmentarv front elevation of the paper clamping` device.

Figure 5 is a diagrammatic end view of the printing roller, showing the line of travel of the paper over the supporting rollers, said rollers being shown in section.

Vwhereon the chase 3 is secured.

Figure 6 shows a diagrammatic view of the driving belts employed.

Figure 7 shows an enlarged fragmentar)V sectional view of the drag bar actuating; mechanism. V

Figure 8 shows a front elevation of said drag bars.

Figure 9 shows an enlarged transverse sectional view thereof talren on the line 9 9 of Figure 8.

Figure 10 shows a fragmentary side view illustrating the shear actuating mechanism.

Figure 11 shows a front elevation 4view of the shears. I

Figure 12 shows an end view of 'the spool 70 frame and spools carrying the paper rollers` and Figure 13 shows diagrammatic end view of the driving gears through which the printing roller is driven.

Referring now more particularly to the drawings, wherein lile numerals of reference designate similar parts in each of the figures, the numeral l designates the side members of the press frame, which stand up vertically and are spaced apart. letween these side members, in the front of the frame, there is a horizontal type plate 2 ylhis type plate is reciprocated baclr and forth in the usual manner through the conventional re ciprocating mechanism, which has not been shown, as it is common to printing presses and familiar to those versed in the art of printing. Integral with the side members 1, and upstending` therefrom, are the standards 4i, .lprovided with aligned bearings wherein the shaft 5 is rotatably mounted. Fixed upon this shaft. between the standards, there is a printing roller or drum (i. rlhis drum has the

cams

7, 7 one at each end, provided for a purpose to be hereinafter stated. The numerals 8 and 9 refer to the upper and lower paper rolls, which are carried upon the respective shafts 10 and 11, 100 which have end bearings in the frame 1Q. The shaft is driven. by a suitable belt 13, which operates over a pulley fixed on the shaft 10, and the shaft 11 is driven by means of a suitable cross belt 14, which operates over the

pulleys

15 and 16. which are fixed drum 6 and returning over the

rollers

19 and 20. These supporting rollers have end bearings in the frame of the press, and are driven by a suitable belting, as shown in Figure 6, the roller 1T rotating; backwardly with respect 'to the direction ottravel of the paper so as to give the required tension to the paper as being printed. The tixedrod 18 and the

rollers

1T, 19 and 20 have the adjustable edge guides 21v 21 thereon, between which the sheet of paper passes and which may be adjusted to accommodate sheets oit different widths. Co-operating with the rollers 17 and 2O are the

tension rollers

22 and 23, which are supported

bythe arms

24 and 25, pivotally mounted on the trameworlr, and these tension rollers assist in ,friving the required tension to the sheet as it passes through the press. There is transverse shaft 26 having` end bearings inthe opposite sides of the trame-worlnand iixed to the opposite ends ot this shaft, are bell cranks, ea ch having,` 'the short arm 2'?" and the long depending,` arm 28. Pivoted to the treo end of each short arm 27. there is a push rod 29, having a long slot 30'tnrough which the pin 31, carried by the trame-work, projects. The pull spring 32 is attached at one end to the pin and at its other end to the push rod above the pin. The 'free end ot each push rod 29 has a roller bearing 33, which rides upon the adjustable cam 34, which fixed upon the shatt 5. `lProjectingfy upwardlytrom the shaft 26, there is abracliet 35. This bracket 35 supports the clamp 36, adapted to clamp the paper between it and the-rod 18, as will be hereinafter referred to. The push bars 37 vare provided, one on each side. These bars are pivoted at one end to the long;` arm 28, and at their other ends theyv are pivoted to the lock-bars 39 by `means otV the pins 38; These lock-bars are arranged to move lengthwise in the bearings 40, carried by and forming part of the trame-work, and underneath said bearings, are the guides 41 in which the ends of t-he transverse drag'

bars

42 and 43 travel. Fastened to the respective ends of these bars are the

brackets

44, 44. which move in said guides, and pins 45 :ar-l ried bythe bar 43 pass through bearingsl in the bar 42. and surrounding` said pins 45,7and

interposed betweenthe bars 42 Aand 43 are the

coil springs

46, 46. which 'l'orin resilient seats for the bar 42. The long bearing1s40 vand the guides 41, underneath are connected.

`bv the

sleeves

47, 47, which are formed integrally therewith, and within the respective y, euides 41.',there are the lock bars 48 which have the integral latches 49, 49 projecting up throuffh the" sleeves 47, and whose tree ends are beveled, and normally project into correspondingly shaped notches` 50 in the underside of the bar 39. The 'inner endet each ot the bars 39 has a roller bea-ring 51 1n rolling contact with the ends ot the druinar 6 and actuated, at times, by the cams 7, there-A 01"". Pull springs 52 are attached at one end to the underside ot the bearing 49, and at their other ends to the` loclrbars 48, and which tend to hold the latches 49 seated in the notches 50. The sheet oi? paper passes between the drag' bars 42 and 43and is at intervals clamped between them, tor a purp ose to behereinaitter stated.` V I j Pivoted to the sides et lthe type plate 3 at its linner end, are the

shift arms

51, 51, whose free ends are vmpti'urired and provided with the adjustingI bolts 52', 52.rwhich are threaded through isaid upturned/ends. The

inner ends of the bolts' have swivel connections with the adjusting blocks 53, These varms aretied together by means of the tie bars 54 and 55, the latterl of which rests upon" the

flat springs

56, 56 projecting` out trom the adj acent end of the type plate, thus providing' a yielda-ble support for the shift arms. As the press plate moves inwardly into printing relation with the roller 6,\aldjusting"

bolts

57, 57 contact `against the lower drag' bar 43 andtorce the said drag hars along', to advance the sheet ot paper being printed in synchronism withthe pressiplate and print ing roller. These adjusting bolts are threaded through the

lugs

58, 58, upstanding from the respectivearms 51,\151. Previousto the movement of the drag,- bars, however, they are caused to grip the sheet of paper by the cam 34 contacting against the roller 33 and forcing the push rod 29 upwardly, which operates through the bell cranks, to which said push rod isvpivoted, to impart a thrust to the push bars 37. and these drive the lookin?,- bars 39 along' in their .bearings 40 against the beveled ends of the latches 49, j

forcing;` the same downwardly and driving l are in position to contact' against the rollers Y 51, and hold the drap` bars in clamped position until the printing operation is complete-and the type plate is ready to start backwardly and thereupon the cams 7 release said rollers 5 1. The opposite ends of the bearings 40 have the plugs 60 screwed therein, and interposed between thesel plugs i and. the corresponding' lock-bars, are the j uushsprinpgsl, whiclrthen force said lockbarsbackwardly until thenotches 50 align with the latches 49, whereupon the springs 52 i lift the lock-bars 48 from contact with the studs 59, and the .dra-g` bar 42 is thereupon raised out of contact with the sheet of paper by the springs 46. As the type plate returns,

lessees the blocks Contact against said drag bars and return them to their,` original position. The 1ange ot movement ot said'drag barema-y be varied by a suitable adjustment ot the

bolts

52 and 57. rhe cam may beadjusted through the instrumentality oi the set screw j 62 so that the drag barsvwill clamp the paper at the desired time. i

-The printing roller G is driven through ay series of gears, shown in `Figure 1P. In this ligure the numerai designates a transverse drive shaft rotatablyvv mounted in 'the trame work and one end ot which carries the belt pulley 6d. Fixed upon the shaft 63 there is a small spur gear which is in mesh with a larger spur gear 66, which is lined upon the transverse shaft 67, and this gear is in mesh with and drives a larger gear wheel 68, which is liXed upon the shaft Fixed upon the end of shaft 5, opposite the cam 34, there is a cam 69 provided to actuate the shears, hereinafter described.

While one side of the sheet is being printed,

the shears do not operate and the sheet ci paper is unwound from the roller 8 and wound on the roller 9. Vhile printing the other side of the sheet, these rollers are reversed and the paper is unwound from said last mentioned roller and passes through the press to print the other side ot the sheet. As the other side oi' the sheet is printed, it is cut into sections for folding, by means ot' said shears. rllhese shears include the fixed transverse blade 70, whose ends are secured to the

standards

71, 71, and the reciprocating blade 7 2, mounted above the iiXed blade. One end ci2 the reciprocating' blade 7 2 is pivoted to one of the standards 71, and at itsl other end works in a guide 7 8 carried by the upper end of the other standard. A shear actuating lever 74 is pivoted at one end to theblade 72. This lever is tulcrumed at an intermediate point on the bolt 7 5 which may be adjusted vertically in the slot 76, through which it passes, so as to carry the tree end of' the lever 74 into, or out or' contact with the cam 69. When the sheet is being printed on one side, the lever 74 is adjusted out ot Contact with said cam, and the shears do not operate. When the rolls are reversed and the other side of the sheet is printed, the lever 74 is adjusted so that the cam 69 will contact therewith and operate the shea-rs. The sheet as now printed, will pass along between said blades, which are actuated through the mechanism described, to cut the sheet into proper sections, which tall down upon the. receiving platform 77, or onto a suitable folding machine, (not shown). It will be necessary to so adjust the sheet that the shears will cut through the blanlr space left between the pages, rather than through the printing. For this purpose I have provided an adjusting roller 7 8, whose ends are mounted in the long transverse bearings 79 ot the tramefworlr. This roller may be, adjusted to any desired position relative to the sheet of paper, and thereby the sheet may be so adjusted relative to the shears, that it will be cut at the required place.

.Provision is made for varying thel range ot' movement ot' the drag bars ft2 and 43, so

that pages or sections otldiilerent sizes may be printed.I This is accomplished through the Iin,strumentality,otf suitable cams as 80, which are secured 'to the respective bars Si, arranged on eachside ot-the Jframe. rllhese cams are secured to said bars by means oit the bolts 82, which pass through said cams and through the oblongslot 83 in said hars 81. The arms 51 carry the respective rollers 88, S3, arranged to contact against the underside of the cams-80, and thereby the arms 5l will be pressed downwardly so that the adjusting bolts 57 will be disengaged from the drag bars i3 at the proper time and the advancement ot the sheet thereby stopped. 1t is obvious that the cams 8O may be adjusted to any desired position, and the range ot movement ont the drag bars thus' varied in accordance with the length of the printed section of the sheet.

What I claim is l. In a printing press, a clamping device arranged to clamp the sheet of paper passing around the lprinting roller, and hold the same stationary, drag bars adapted to intermittently clamp and release said sheet to advance the same and a mechanism arranged to release said clamp and simultaneously actuate the drag bars into engagement with the sheet of paper.

2. In a printing press, having a reciprocating type plate and a printing roller cooperating therewith, around which the sheet of paper passes, a stationary rod over which said sheet travels, a clamp intermittently clamping the sheet between it and said rod, drag bars between which the rsheet passes, means intermittently clamping said bars against and releasing them from said sheet, means advancing saidfbars when in clamping position and returning them to original position when in released position, and a common actuatingdevice 'for simultaneously releasing said clamp from the sheet and clamping said bars into engagement with the sheet.

3. In a printing press, a clamping device intermittently clamping and releasing the sheet, drag bars between which the sheet passes, means provided to actuate said bars into clamping engagement with and to release them from said sheet, means advancing said bars when in clamping relation with the sheet and returning them when released, and a common actuating device for simultaneously releasing the clamp and actuating said bars into engagement with the sheet and vice versa.

4. Ina printing press, having a reeip-roouslyreleasing theelamp and actuating said Veating type plate and a printing roller oobars into engagement with the sheet and operating therewith and around which the vice versa, and shears arranged t0 automatl5 sheet of paper passes, a clamp-device interically eutsaid Sheet into sections;

.3 mittently clamping and releasing thesheet, In testimony whereof I have signed my drag bars between which the sheet passes, name to this specification in the presence of means provided to aetuate sail bars 1into two subscribing Witnesses. l elarnpinr enfragement with an to re ease f them frogm Said sheet, means. advancing said i JOSEF HEJL' i0 bars when in clamping relation with the Wtnessesz` sheet and returning them when released, and R. M. SMITH',V a common actuating device for simultane- JOSEPH DEDEK.