US1821713A

US1821713A - Paper handling device

Info

Publication number: US1821713A
Application number: US421554A
Authority: US
Inventors: Samuel Johansen
Original assignee: Individual
Current assignee: Individual
Priority date: 1930-01-17
Filing date: 1930-01-17
Publication date: 1931-09-01
Anticipated expiration: 1948-09-01

Description

7 Sept. 1, 1931. s, JOHANSEN 1,821,713

PAPER HANDLING DEVICE Filed Jan. 17, .1950 4 sh ats-sh it 1 anon H501 p 1931- s. JOHANSEN 1,821,713

PAPER HANDLING DEVICE Filed Jan. 17, 1950 4 Sheets-Sheet 2 Qwwentoz: Samuel fiiamsezz 32x GHQ Wm;

Spt. 1, 1931. s, JOHANgEN 1,821,113

PAPER HANDLING DEVICE Filed Jan. 17, 1930 4 Sheets-Sheet '3 P 1, 1931- s. JOHANSEN PAPER HANDLING DEVICE Filed Jan. 17. 1930 4 Sheets-Sheet 4 u Z J Z w m J Patented Sept. 1, .1931

UNITED. STATES", P N QFFECE SAMUEL JOI-IANSEN, or DETROIT, ivnonrennnssronon 11:0 ISABELLA soo'r'r Ann DAVID J. soo'r'r, nxncu'rons orrn n ESTATE'OF WALTER scorn, nnonasnn, on PLAINFIELD, NEW JERSEY, DOING nusmnss As WALTER scorr & COMPANY rerun HANDLING DEvIoE.

Application filed 'January 17, 1930. Serial No. 421.554.

This invention relates generally to machines for handling paper or the like, and has more particularly reference tocylinders used in connection with folding and cutting devices associated with web printing ma chines. V y

In the accom anying drawings, the mven tion is disclose in several concrete and preferred forms in which Fig. l is a general'view in elevationand' with parts broken away andv in section of a folding device embodying the invention;

Fig. 2 is an enlarged'sectional view otthe folding and cutting cylinders shown v n Fig. 1;

Fig. 3 is a fragmentary view looking at a portion of thecylinder face;

Fig. 4 is a view similar to Fig. 9 but showing a modified form of the invention; and

Figs. 5 and 6 are'detail views showin the adjusting means used in the modified lorm Fi .4.

I n printing or other machines for handling web material, theweb or webs, that is asingle layer of paper or a plurality of superposed layers, are supplied at a certain speed. The

foldingand cutting cylinders at theend of; the machine are geared to advance thew'eh at a very slightly greater speedthan that of the advance of the paper through the printing machine so as to keep the paper under tension. When different runs are made, dif-' ferent numbers of layers of web material will reach the folding and cutting cylinders, and

sometimes the increase in thickness of the paper becomes excessive, especially when sue cessive batches of sheets are cut from t he'web and collected. The folding or cutting'cylinder is provided with web-taking devices such as impalin'g' pins, and it will be understood I that, when the thickness of the web layers becomes excessive, the e'ifect is virtually that or a cylinder of increased'diameter, The result is that the topmost layers of the pack or batch move at a greater speed that the under layers so that overpulling of some of the webs takes place, usually. resulting in disengagement of the webs with the web-taking devices. 7 This is caused by the fact that, as previously stated,

the printing cylinders rotate at a given speed:

and the web or websaretherefore supplied to i i the foldin cylinders at a given speed, and, as it is di cult, and would be objectionable,

for'thefo'lder to pull the web over the printing cylinder at a greater speed than the speed of rotation of the printing cylinders, it naturally follows that'the paper is torn from the web-taking devices. There are other factors I For instance when new I blankets areplaced on the impression cylinthat enter into this.

ders, the cylinder may have a larger diameter than whe'n the blankets become old and .com-

former older with which is associated the h

usual folding rollers

2 and 3 by means of which a longitudinal fold is given to the web or websil; 5 is a collecting and folding cylinder and 6is' a cutting cylinder cooperating.therewith} The web or webs aroled botween cylinders 5 and '6 where successive cuts are made toproduce packs of sheets,

and where, at times, successive packs of sheets are collected in a manner well understood, after which the sheets are folded between rolls 7 and delivered by S-delivery 8 or otherwise. Gylinder 5 is here provided with three web-taking devices, taking the form of impaling pins 9, and these pins are mounted on supports'lO of which there are likewise three.

Cylinder 6 is provided with two cutting blades 11 that engage rubber members 12 on cyhnder 5. Supports 10' are of segmentalshape and are spaced apart as shown, and

s annin the a between said supports are b b l.

bands 13 of flexible material, such as sheet steel. 14 indicates folding blades to fold the batch of sheets between rolls 7, and these folding blades are geared to so rotate that at the proper moment they will project between the steel bands and present the sheets to said rolls 7. The details necessary to accomplish this result need not be described as they are well understood in the art.

Now, it will be observed, that at a certain point in the revolution of cylinder the imadvance the latter. It will now be understood that if an excessivathickness of paper is engaged by the web-taking device the effeet is virtually that of increasing the diameter of cylinder 5 so far as the outer layers of paper are The result is that said outer layers are moving in.a longer path, with respect to paper supply means indicated at-3, than do the layers nearer the surface of the cylinder or, to put the matter differently, the outer layers move at a greater speed than the inner ones. There is, therefore, a tendency to overpull the web with respect to 3 and the devices back of it. Again, to illustrate, we. may say that the sheet carrying surface of the cylinder, so far as the outer layers are concerned, has been lengthened. This, as previously described, tends to tear the outer layers from the impahng pins. To overcome this difficulty resort is had to the simple expedient of so flexing bands 13 that the paper path is shortened, or the sheet carrying surface is shortened, said bands being broughtbelow the normal circumference of cylinder 5. In this manner the excessive thickness of paper is compensated for avoided. This is illustrated in Fig. 2 where '15 indicates in dotted lines the normal circumference of the cylinder and where bands 13 are shown flexed below said normal circumference. The means for effecting this flexing may, of course, vary widely. In Figs. 2 and 3 the bands are shown as being anchored by means of bolts or set-screws 16 to one of the supports 10, said bands having at their other ends slots 17 in which are fitted dovetail clamps 18 held by set-screws 19 on another one of the supports 10. Or the setscrews themselves may constitute the clamps. Mounted in said other support is a threaded stem 20 carrying an internally threaded nut 21 which extends up into an opening 22 in a band, and this nut may be provided with wrench holes as 23. It will nowbe seen that,

set-screws 19 being loosened, rotation of nut 21 will &Cl]l1St the band circumferentially in one direction or the other thereby flexing it To facilitate this action, the

more or less. ends 24 of supports 10 may be of slight taper formation. After the proper adjustment has been made, set-screws 19 are brought home to clamp the parts in position. If desired a concerned. I

and overpulling is;

gage may be associated with nut 21 to indicate the amount of adjustment required for different thicknesses or layers of paper.

In Figs. 4, 5 and 6 is shown a modified form of the invention. In this case, cylinder 25 is provided with two sets of impaling pins 26 and two rubbers 27. Cylinder 28, on the other hand,-carries both a set of impaling pins 29 and a cutting member 30. In this case, therefore,28 acts not only as a cutting cylinder but also as a collecting cylinder. The invention is here shown applied to cylinder 28. As here shown, cylinder 28 has two supports 31 and 32, the former of which supports the cutting member and also has anchored thereto two sets of bands 33 by means. of set-screws 34, and the latter of which carries a rotatable member 35 having two pins 36 one of which engages a transverse slot 37 in one band and the other of which engages a transverse slot 37 in the other band. Said bands are also provided with longitudinal slots 38 in which fit dove-tail clamps 39 held in position by set-screws 40. It will now be understood that, set-screws 40 being loosened, rotation of member 35 will simultaneously flex two bands of different sets. Any suitable means may be used to rotate member 35. For instance, a rotatable worm 41 may be used to engage a worm wheel 42 in member 35. 43 is a pin engaging a circumferential groove 44 in worm 41 to keep the latter from moving lengthwise.

I claim: p

1. Thecombination'of a rotating cylinder, means to supply, to the surface of said cylinder, one or more layers of paper webs at a given speed, web-taking devices carried by the cylinder to advance said layer or layers of paper webs under tension by rotation of the cylinder,a-nd means to prevent overpullingof said web layer or layers by said web taking devices.

2. The combination of a rotating cylinder, means to supply, to the surface of'said cylinder, one or more layers of paper webs at a given speed, web-taking devices carried by the cylinder to advance said layer or layers of paper webs under tension by rotation of the cylinder, and means carried by the cylinder to prevent overpulling of said web layer or layers by said web-taking devices.

3. The combination of a rotating cylinder, means to supply, to the surface of said cylinder, one or more layers of paper webs at a given speed, web-taking. devices carried by the cylinder to advance said layer or layers of paper webs under tension by rotation of the cylinder, and means to adjust the circumferential length of the surface of the cylinder to prevent overpulling of said web layer or layers by said web-taking devices.

4. The combination of a'rotating cylinder, means to supply, to the surface of said cylinder, one or more layers of paper webs at a given speed, web-taking devices carried by the cylinder to advance said layer or layers of paper webs under tension by rotation of the cylinder, and means'to vary the length of the paper path between the web supply means and the web-taking devices carried by the cylinder.

5. The combination of a rotating cylinder, means to supply, to the surface of said cylinder, one or more layers of paper webs at a given speed, web-taking devices carried by the cylinder to-advance said layer or layers of paper webs under tension by rotation of the cylinder, and means to adjust the circumferential length of the surface of the cylinder to thereby vary the length of the paper path between the web supply means and the web-taking devices carried by thecylinder. V

6. The combination of a rotating cylinder, means to supply, to the surface of said cyl inder, one or more layers of paper webs'at a given speed, web-taking devices carried by the cylinder to advance said layeror layers of paper webs under tension by rotation of the cylinder, and means to adjust'the circumferential length of the surface of the cylinder to thereby compensate for a variation in the number of layers of webs on said cylinder.

7 The combination of a rotating cylinder, means to supply, to the surface of said cylinder, one or more layers of paper webs at a given speed, web-taking devices carried by the cylinder to advance said layer or layers web layer or layers by said web-taking devices. e

8. The combination of a rotating cylinder, means to supply, to the surface of said cylinder, one or more layers of paper websat a given speed, web-taking devices carried by the cylinder to'advance said layer or layers of paper webs under tension by rotation of the cylinder, and means to flex the surface of the cylinder to thereby vary the length of the paper path between the web supply means and the web-taking devices carried by the cylinder.

9. The combination of a rotating cylinder,

means to supply, to the surface of said cylin der, one or more layers of paper webs at a given speed, web-taking devices carried by the cylinder to advance said layer or layers of paper webs under tension by rotation of the cylinder, and means to flex the surface. of the cylinder to thereby compensate for a variation in the number of layers of webs on said cylinder.

10. In a rotating cylinder that carries one or more layers of paper on'its surface, supporting members spaced apart circumferentially, flexible bands, constituting a paper flex them so as to vary the length of the paper supporting surface.

11. In a rotating cylinder that carries one 7 or more layers of paper on its surface, segmental-shape supporting members spaced apart circumferentially, paper-taking devices carried by one of said supporting members, flexible bands, constituting a papersupporting surface, extending circumferentially over the gap between, and carried by, said supporting members, and means to circumferentially adjust said bands to thereby flex them so as to vary the length of the paper supporting surface.

. 12. In a rotating cylinder that carries one or more layers of paper on its surface, a plurality of supporting members spaced apart circumferentially, a plurality of sets of flexible bands, constituting paper supporting surfaces, extending circumferentially over the gaps between, and carried by, said supporting members, and means tov circumferentially and simultaneously adjust members of two sets of bands to thereby flex them so as to vary the length of a plurality of paper supporting surfaces.

13. In a rotary folding machine, the combination with means to supply one or more layers of webs at a given speed, of a combined cutting and folding cylinder to receive said layers on its surface, web taking devices on said cylinder to advance said layer or layers under tension by rotation of the cylinder and, after the web or webs has been severed, to carry around cut sheets to be associated with other sheets'or web sections received by the cylinder, and means to vary the effective size of said cylinder to thereby provide for collecting varying thicknesses of product without overpulling.

14. In a rotary folding machine, the com bination with means to supply one or more layers of webs at a given speed, of a collecting cylinder to receive said layers on its surface, impaling pins on said cylinder to engage the web or webs, and means to adjust the peripheral length of said cylinder toavoid pulling the impaling pins out of the product that is being collected. 7

15. In a folding machine, the combination with means to supply one or more layers of webs at a given speed, of a cylinder, devices on the cylinder to take a varying thickness of product, and means to vary the effective size of said cylinder to compensate for the varying amount of thickness of the product.

Signed at Detroit, in the county of Wayne, and State of Michigan, this 13th day of January, 1930.

SAMUEL JOHANSEN.