US1717257A - Folding cylinder for printing presses - Google Patents

Description

June 11, l929 G. RAsMussEN FOLDING CYLINDER FOR PRINTING PRESSES Filed Aug. 1l, 1928 3 Sheets-Sheet June ll, 1929. G. RAsMUSsEN 1,717,257

FOLDING CYLINDER FOR PRINTING PRESSES Filed Aug. ll, 1928 3 Sheets-Sheet 2 wlTNEssEs INVENTOR' George iwzllJJF/r BY i A @IKM/@ZW v a ATTORNEY June 11, 1929. G, RASMUSSEN 1,717,257 I FOLDING CYLINDER FOR PRINTING PRESSES Filed Aug. 11, 1928 3 sheets-sheet 3 i "riff/A 3 INVENTOR WITNESSES Gef/rye a'luueu 9 I I BY @fr www ATTORN EY Patented June 11, 1929.`

UNITED STATES GEORGE `East/TUSSEN, orl NEW YORK, N. Y.

FOLDING CYLINDER FOB. lIIERI1\l'TI1.\T(r PRESSES.

Applicationrled August 11, 1928.

This invention relates to an improved folding cylinder for newspaper printing presses, the object being to provide an improved construction wherein, by the addition of certain parts to an old cylinder, two sections ofthe newspaper may be folded together accurately.

Another object of the invention is to provide in a folding cylinder for newspaper printing presses, means for folding two sections and doing soat a high rate of speed without danger of tearing or dislocating any of the sheets of paper.

A further object, more specifically, is to provide in an ordinary folding cylinder for newspaper printing presses, special attachments for cutting and folding two sections at a-time, the arrangement being such that the special folding attachment may bereadily connected and disconnected, so that the folding cylinder may be used to fold single or double sections, as desired.

In the accompanying drawings,-

Figure 1 is a side view with certain parts broken away disclosing a folding cylinder disclosing an embodiment of the invention, the same being shown in connection with certain parts of the printing press.

Figure 2 is a sectional view through Figure 1 approximately on line 2 2;

Figure 3 is a reduced fragmentary sectional view through Figure 1 approximately on the line 33;

Figure 4 is a sectional view similar to Figure 2 but showing the parts in an advanced position;

Figure 5 is a view of a right-hand portion of the cylinder shown in Figure 4 with one section of paper in place and a second section about to be moved into place on the cylinder;

Figure 6 is a sectional view through Figure 5 approximately on the line 6 6.

Referring to the accompanying drawings by numerals, 1 indicates the frame of a printing press, and this frame is connected with a cam plate 2 having a cam groove 3 adapted to ySerial No. 298,977.

of the cylinder 12. The ends of the pins 16 and 17 are pointed and penetrate the paper. The cylinder 12 isprovided with the usual submerged cutting blocks 18 and 19 against which the knife or knives 20 operate, said knife or knives being carried by the usual cutting drum 21. An' arm 22 is rigidly se- I head 31 fitting against the shoulders 32'of the f bar 33. Bar 33, as shown in Figure 6, is provided with an extension 37 through which the bolt 38 extends, said bolt being surrounded by spring 39, whereby the bar 33 is normally held in an outer position. It will be understood that bolt 38, spring 39 and associated parts are arranged at the opposite end of bar Y 33 to that shown in Figure 6, so that the bar will automatically move outwardly, and under the action of rod 30 will move inwardly. It will also be understood that shaft 25 extends for the full length of the cylinder and carries a rod 30 and associated parts at both y.

ends. Bar 33, as shown more particularly in Figure 5, is providedwith an inclined surface 40, whereby a point or edge 41 is produced. It will also be noted that the cylinder 12 is provided Vwith a recess 42, whereby the bar may be completely withdrawn or moved into the cylinder. By reason of the link 23 and associated connections the bar is auto-V matically withdrawn ata certain time during the revolution of the cylinder 12 and is allowed to move outwardly-at substantially the same time that the pin 16 moves outwardly for piercing a section of paper. As shown in Figure 4, the pin 16 has been moved outwardly and also the bar 33 has been moved outwardly. By the time the cylinder has rotated a half-revolution or untilthe paper has struck the stop or abutment 43 the bar 33 and pins 16 will be operated so that both will be withdrawn.

This takes placeL while the parts are in motion and after Withvdrawnthe various parts keep on moving vuntil they are again in the position as indicated at the right in Figure 4, so that the operation may be repeated; A pair of folding blades 44 and 45 are carried by the cylinder 12 and are formed and operated in the usual manner.

llO

However, where two sections of paper are to be folded into one bundle, one of the folding blades is thrown out of operation and in the present instance, the folding blade is thrown out of operation. This is done by removing the bolt 46 so that the shaft connected with the folding blade will not rotate. I

In order to positively hold the blade in thel position shown in Figure 4, a sliding locli in the nature of an lordinary bolt 47 is slid over so that part will project into an aperture 49 in the cylinder end 10. vThese parts are al ready in use on machines of today but are usable in connection with the present invention in order that there will be one complete revolution of the cylinder 12 for each folding action of blade 44. IVhen this blade reaches the desired point it will press the two sections of paperl downwardly through the folding rollers 50 and 51.

In operation the parts start when in the position shown in Figure 2 with the first section 52 of the paper just entering between the cylinders 12 and 21. As the cylinders continue to function the pins 17 which act as paper grips pull the paper around the cylin der guided by t-he guiding plates 53 and 54. Themovement continues until the end of sec tion 52 strikes the abutmentV 43 and shortly before this takes place the pins 17 are withdrawn. 'Ihis will leave one section resting on the guides 53 and 54. By the time this takes place the block 18 adjacent the pins 16 will be opposite the cutting knife 2O and the section 52 of the paper will be severed., Substantially at the same time that the knife 20 severs the first section 52 from the printed paper pins 16 function so that the parts will appear substantially as shown in Figure 4. The machine functions continually during the operation of the printing press, so that almost instantly upon the movement of the parts shown in Figure 4 the bar 33 will hold the section 52 outwardly, while the pins 16 draw section 55 downwardly and into the space loetween section 52 and the cylinder 12. Section 55 will be drawn around the cylinder, as described, in respect to section 52 and will be released substantially at the instant it strikes the abutment or stop 43. At substan- Vtiallv the same time that this takes place the folding blade 44 willfunction so that both sections 52 and 55 will be forced ydownwardly at a central point between the rollers 50 and 51 so as to be folded together. While this folding action is taking place a new section 52 will be'drawn around the cylinder and then a second section 55, and the operation .is repeated as long as the parts are functioning.

In this way it will be seen that the bar 33 will hold section 52 out of the way while the .pins 16 will draw a second section to a positionoverlying section 52, thus permitting both sections to be folded at the same time instead of only one section as heretofore.

Vmeans forming part of the cylinder for engaging'the paper near the point of severance and moving the same partly around the cylinder, guiding means for guiding and supporting the paper moved partly around the cylinder, an automatically-actuated bar for holding said paper spaced from the cylinder as the cylinder makes its second movement for bringing in a second supply of paper, and means for automatically folding both supplies of paper while a third supply starts to be moved around the cylinder. y

2. A folding cylinder for printing presses, including a rotatable cylinderbody, a pair of spaced guides, one ofsaid guides having an abutment, gripping means for gripping a section of paper and pulling thesame along said guides to said abutment, and automatically-actuated means for holding said section of paper against said guide while said gripping means pulls a second section of lpaper over 'the first section of paper.

3. .A folding cylinder for printing presses, including a cylinder body, a cutting cylinder coacting therewith for cutting sections of paper fed to the cylinder body, pointed members acting as grips for gripping each section immediately before it is cut, and later pulling the section partly around the cylinder, means for supporting the section after it .has been pulled. partly around the cylinder, a bar for holding said section away from the cylinder after said pointed members have been withdrawn therefrom and while said pointed members pull a second section of paper partly around the cylinder, and a folding blade adapted to function to fold both of said sections at the same time.

4. In a folding cylinder for` printing presses, a pair of arc-shaped guides, one of said guides having a stop,`means movable in a circle for pulling a section of paper over said arc-shaped guides to said stop, an automatically-actuated bar acting on the paper carried by the guides for holding the Vpaper against said guides, while a second section is moved over the first section, and a folding member for folding both of said sections.

5. A folding cylinder for'printing presses, including means for taking two sections of paper Vand folding the same together, said means being provided with a guide for guiding and holding in a given position the first section, and a spacing bar moving over the first section, while the second section is moved to a position on top of the first section, said spacing bar holding said first section out of the path of movement ofthe second section.

6. A folding cylinder for printing presses, including means for folding two sections of a newspaper together, said means having a pair of guides, one of which is formed with a stop mechanism for successively pulling two sections over said guides to said stop, a bar for holding one section against the guides while the other section is being pulled into position, automatically-actuated means for moving said bar' toA functioning and noirfunctioning position, and a folding blade for pressing downwardly both of said sections after they have been placed on said guides.

7. A folding cylinder for printing presses, including means for pulling two sections of a paper together, said means in turn including a pair of guides for receiving, guiding and supporting two sections of a newspaper, a bar for holding one of said sections in a given position while the other section is moved to a position to be supported by said guides, spring means for holding said bar in an operative position, a pair of pull members coacting with said bar for pulling the bar to an inoperative position, and means actuated by the mechanism of the cylinder for causing said pull members to function at the proper time, and a folding mechanism including a blade and a pair of rollers for folding the superimposed sections of paper.

8. In a folding cylinder for printing presses, means for folding two superimposed sections of newspaper, said means including a folding mechanism for said two sections of newspaper, a bar for holding one of said sections in a given position while the other section is moved to asuperimposed position, automatically-actuated means for moving said bar to an operative position, pull means for moving said bar to an inoperative position, and mechanism for connecting the pull means with the guiding mechanism of the cylinder for causing the pull means to function at the proper time.

9. In a folding cylinder for printing presses, means for arranging two sections of newspaper in a superimposed position and then folding the same together, said means including a folding mechanism for folding the superimposed sections of newspaper, a pair of guides for receiving said sections, a bar for holding one of said sections out of the way while the secondsection is moved to a position adjacent said guides, a spring arranged adjacent each end of said bar for normally holding the bar outwardly, a pull member arranged adjacent each of the springs for pulling the bar to an inoperative position, and a link and lever mechanism connected With said pull members and with the driving mechanism of the cylinder for causing the bar to be moved to an inoperative position at the proper time.

10. In a folding cylinder for printing presses, meansV for arranging two sections of newspaper in a superimposed position and then folding the same, said means including a support, a bar for holding one of said sections adjacent said support while the second section is moved over the first section, a pair of springs for holding said bar in an operative position, a pair of pull rods for pulling said bar to an inoperative position, and a link and lever mechanism connected with said pull rods for causing the same to function.

Signed at New York in the county of New York and State of New York this 8th day of August, A. D., 1928.

GEORGE .RASMUSSEN

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