US1684901A - Folder - Google Patents

Description

Sept. 18, 1928. 1,684,901

H. A. W. WOOD FOLDER Original Filed Aug. 8. 1922 5 'Sheets-Sheet `1 j@ f2 W05@ 1 S 74T Sept. 18, 1928.

H. A. W. WOOD FOLDER original'Filed Aug. s, 1922 5 sheets-Sheet 2 Sept. 1s, 1928.

1,684,901 H. A. w. woon FOLDER Original Filed Aug. 8. 1922 5 Sheets-Sheet 5 Sept. 18, 1928. 1,684,901

H. A. w. woon FOLDER original Filed Aug. s. 1922 5 sheets-sheet 4 y mw:

Sept. 18, 1928.

H. A. W. WOOD FOLDER Original: Filed kAug. 8. 1922 5 Sheets-Sheet 5 WWE 6/4 www] Patented Sept. 18, 1928.

UNITED STATES 1,684,901 PATENT OFFICE.

HENRY A. WISE WOOD, OF NEW Y-ORE'N. Y., ASSIGNOB TO WOOD NEWSPAPER MA- CHINEBY CORPORATION, OF NEW YORK, N. "Y., A CORPORATION 0F VIRGINIA.

FOLDER.

Application led August 8, 1922, Serial No. 580,437. Renewed .Tune 1, 1926.

The principal.` objects of 'this invention are to provide for operating a folder at a high rate of speed; to provide improvements in the nippin rolls of the folder to prevent the failure o these rolls to pull the paper snugly'ovcr the'former when running at hlgh speed; to provide for so arranging the folding roller supports that they will move d irectly away from the folding cylinder when a' choke of paper occurs, thus relieving the choked condition While it is occurring 'and leaving the paper in such position that when the press is eventually stopped the paper can be taken out by the use of the hands only without the employment of tools which are likely to injure the rolls or other parts of the press 51 and to provide all these devices in a single mechanism arranged to cooperate with each other to deliver and fold sheets at a very high rate of d.

Reference is to he had to the accompanying drawings, in which Fig. l is a side view of a newspaper tolding machine constructed according to this invention;

Fig. 2 is a sectional view through the delivery mechanism on enlarged scale;

Fig. Sis a diagrammatic view showing the path of the paper;

Fig. d is a diagrammatic view showing the drive for the nipping rolls;

Fig. Ei is a side view showingthe, spring pressed hrackets for the nipping rolls;

' Figt is an elevation of the ian shalt' and associated parte looking in the direction ot the arrow 6 in Fig. 2;'

Fig. l is a view of folding cylinder and folding rolls in normal position;

Figs. 8 and 9 are similar tra s azentary views showing how folding rolls can he adjusted so that path ci paper can he changed to the right or lett et center line;

' Fig. l0 is a plan view ot folding rolls:

Fig. ll is a sectional view on the line lll- .ll ot Fig. l0;

Fig. l2 is a view et one end ol said arrangement looking in the direction ot the arrow l2 in Fig. l0; and

' Fie. lt is a sectional view through the shea-rung pin on the line ltd-13 oi" Fig. l2.

l dnd that when newspaper'folding de= vices are run at great speed an ordinary set ont nipping rolls does not pull the aper snugly over the former folder. lt t ey are set tight enough on the paper to accomplish this object they bring too great a strain on one of the aper streams and it cracks or breaks throug at that point. To overcome this difiiculty I provide for dividin up this strain between two or more sets 0% mppingrolls.

Ordmarily the folding rolls ,which coopcrate with the cutting cylinder are arranged so thatwhcn extra strain is put upon them they will move apart oppositely and horizontally or in a eneral tangential direction. Now when a cho e of pa roccurs it usually accumulates between the olding cylinder and the folding roll nearest the cutting cylinder,

and `some of it between the two folding rolls which are capable ot being pushed apart as stated.. The direction of motion of these Jfolding rolls as stated alcove, is such as to make it hard to dig out the compressed paper. Chisels or hammers etten have to be used, resulting in damage to the parts and waste ot time. l have provided for ohviating these diculties by so arranging the rollers that they movel substantially radially away trom the cylinder, thus relieving the choked condition" asit occurs, and not permitting the paper to accumulate here in a hard mass.

- Therefore it is easy to take it out hy the use of the hands only and without wasting any great amount of time. This operates by directly providing, hy the action ot the heavy pressure ot packing, more space hetween the rollers and cylinder as each new sheet is pushed into the gap. ll also provide a cut od' pin that is fractured when the pressure gets too heavy, thus creating a wide space suddenly and avoiding the keeping oi the packed paper under pressure. This pin can then be pulled out and another inserted and the press started up saving a great deal ot time and trouhle and avoiding damage.

The delivery tan is provided with stops adjustable simultaneously for changing the 'lli ldd

edective depthot all pockets ot the fan, thus reducing the time required tor setting up the device properly. -With this is connected an oscillating counting device that pushes more than one product or sheet up on the pile each time operates, so that the gap can he readily distinguished. This is provided to avoid the diculty which so frequently occurs, due to the tact that only one sheet is advanced at the end ot a pile, and consequently it has heen dicult to determine where the stach terminates.

l have shown the invention as applied to lllil Mld ' adjustable a folding mechanism having the ordinary features well known in this art and the improvements above mentioned added to them. l

This machine is shown as comprising a former/,10 operating with the usual forming or leading-in rolls 11, and the usual pair of nipping rolls 12 which I call the primary nipping rolls. On account of the difficulties above mentioned and for the purpose of dividing up the strain I do not depend entirely upon these two nipping rolls. But I provide in addition a secondary pair of nipping rolls 13 spaced from the first' pair and operating in the same way. With this device it is not necessary toadjust the rolls 12 tight enough to cause them to pull the paper snugly over theV former folder 10 at all times, but they can be adjusted more loosely because they are assisted b the second rolls 13 which also are adjusted oosely. The work is divided between the plurality of sets and the strain'at each point is i divided and lessened. This practically eliminates the cracking or breakling of the paper at the nipping rolls.

I have shown oneof the upper pair of nipping rolls 12 mounted on a stationary shaft and the other on a shaft mounted on pivoted brackets 14; These brackets are pressed b springs 15 toward the other rol ofthe coup e and this adjustment may be made by a worm and screw 16 or in any other desired way. One of the rolls 13 of the other pair is also mounted on a stationary shaft on the frameof the machine and the other on a bracket 17 which is pivoted and adjusted by springs 15 and screws 16 as in the other case.

The web W is'led as usual from the nipping rolls to the foldingc linder 18 and cutting and collecting cylin er 19 which cuty it up into sheets and fold it in the usual way and tuck it between the folding rolls 20.

The folding rolls 20 are mounted on shafts 21 as usual rotated and geared together by gears 20. One of these shaftshas bearings at its ends mounted on brackets 22 and these brackets are pivoted on shaft V23 which is carried in a pair of supxlirts 24 at the two ends of the machine. Y ese supports are provided with slots 25 arranged concentric with the folding cylinder. The frame of the machine is provided with lts 26 for securing th'e adjustment of these supports in any desired position. Extending downwardly from the support 24 there is an arm 40 which is provided with an adjusting screw 41 engaging the frame for moving each of the supports 24 back and forth.

On the supports 24 there is a breaking pin `27 which constitutes a pivot shaft for brackets 28 on which the other roll .2O of the pair has its bearings. These brackets extend beyond this roll and are provided with studs 29 which carry rods 30 extending downwardly therefrom at an angle and provided with springs 31 and adjusting nuts and' collars 32.

Vpoint of the brac On the supports 24 there is a shaft 33 extending across the machine having two Worms 34.l One of these worms at one end of the machine is fixed to the shaft and the one at the i it. Also keyed or otherwise fixed to the shaft 33 is another similar hand Wheel 37 for adjusting the other worm. These two worms can be turned together by turning the ltwo hand wheels or either one can be adjusted alone byits lown hand wheel. Each vof these wormsmeshes with a worm wheel 38 on one of the rods 30 for adjusting the pressure of the springs 31.-

In this way one of. the two rolls 20 can have the spring ressure with which it is provided adjuste to regulate the diiculty of forcing it away from the folding cylinder 18.. It will be noted that the brackets 22 and 28 cross each other so if the breaking pin breaks they both can move away, one about the pivot 23 and the other about the pivot ,27 on the opposite side in directions substantially radial with'respect to the -foldingcylinder. One roll is always free to move away in that direction, this movement -being resisted only by the springs 31 which are provided for that purpose, and which hold the two rolls in contact unless some choke of paper occurs to overcome the resistance of these springs and force one away. This relieves the choked condition as it occurs and prevents the packing of the paper between the rolls and the folding cylinder in a-hard mass, and also permits the paper to be taken out withoutA the use of tools. As the paper is packed in between these rolls they yield more and more to provide a space for it;

I have described the arrangement by which one of the'rollers is pressed on b y the springs 31 to hold it against the other. In addition to this I haveshowii in the last two figures the cut oil' or fracture in 27 mounted at the pivot lget 2.8 in position to enter lill a hole 43 provided in a sleeve passing through holesin the brackets 22 and 28 and in the sup.- port 24. The brackets 22 are stationary ordinarily. Now when the movable roller is pressed too hard away from the other this pin 27 will break and all the resistance will e relieved at once, thus creating suddenly a sullicient space for the wad of paper. This paper therefore is no longer kept under pressure. The bracket 22 comes down against the support 24, When this occurs the press is stopped, the paper pulled out, the pin also ulled out', and another pin 27 inserted. Then he press can be started and will operate as if ynothing had happened.

tionary durinvr the operation of the machine as is usual. fnterspersed among these arms are a series of fan blades 47.1`nounted on a shaft 48 which rotates them. These blades.

star wheel is provided with a series of radial stops 52, each one extending into one of the pockets of the fan and constituting'the bottom of that pocket. By the adjustment of the star Wheel the effectlve depth of the pockets is also adjusted andthey are all adjusted simultaneously and equally. It will be understood, of course, that these stops 52 do not need to project into the pockets, but two sets of them are shown located between some of the fans so as to have the effect above described.

This fan lays the folded sheets on a conveyor belt 54 as usual. Being laid at regular intervals and the blades moving continuously,`

each folded' product is laid at a definite dis tance behind the one previously deposited in the usual way. 4As de osited the folded prod cts come up against xed stops 55.

It has beencustomaryV heretofore to providelmeans for pushing one sheet or folded .product up into registration with the next one whenever the .desired number have been laid on thebelt. This constitutes an ordinary method of counting out .fifty or one hundred or any other number of sheets. I find that it is not easy to distinguish the point of division between two bundles of products in this way, and for that reason If'provide the shaft by which the conveyor belt 54 is operated with a cam 61 having a notch 62 therein. This cam rotates like the shaft 60 once for each fifty or an other desired number `of printed products eposited. It is arranged to operate on the roll. 63 on an arm 64 on a shaft 65.\ This shaft carries another arm 66 which is pulled over by a spring 66a to hold .the vroller 63 in contact all the time with the cam 61. The arm 66 is connected by an adjustable link 67 with a second adjustable link 68 pivoted on a, stud 69. To the end of this link/68 is pivoted a lstopping finger 70 held up by a.spring^71. Each time the cam 61 rota-tes a full revolution the roller 63- enters 4the notch 62 and allows the link 67 to moveforward toward the left in Fi A2. This swings the lever 68 and the finger 0 forward also a distance sufficient to pile up two or more of the printed products with their butt ends in alignment with each other. In this way the gap between these and the next deposited sheets or products will be suilicient to avoid all danger of over-looking the same. This is important because inexperienced or. young operators are employed ordinarily to take 4these .bundles ofi and place them in piles ready for distribution or other operations.

All these improvements are designed to facilitate the speeding up of a folding device of the character indicated in the drawings. They. are provided to solve certain problems which arise when the speed of the folder increases materially beyond the highest rates heretofore considered practical and they cooperate to that end.' I do not claim herein the details of the delivery fanand the nipping rolls,as they are the subject matter of my co-pcnding divisional applications, Serial Nos. 3,509 and 3,510, filed Jan. 19, 1925.

Although I have illustrated and described only a single form of the invention and shown it as applied to one type of folder I am aware of the fact that modifications can be made therein by any person skilled in the art ywithout departing from the'scope of the inrolls located'at a distance apart for nlpping the web and feeding it to the folder, and a pair of folding rolls for receiving the folded product from the folder, one of the folding rolls being mounted to yield in case of excessive strain in a substantially radial direction with respect to the folding cylinder.

2. The combination with a folder comprising a folding cylinder and a cutting cylinder cooperating therewith, of a pair of folding rolls located in position to receive the folded product from said folding cylinder, and means whereby one of said rolls will move automatically away from said cylinder in a substantially radial direction in case of the choking of the paper between them and the folding cylinder.l

3. The combination with der and a pair of folding rolls for receiving -the folded product therefrom, of means for supporting said folding rolls in a position to permit one of them to yield in case of excessive strain in a direction substantially radial with respect to said cylinder.

4. In a folding machine, the combination a folding cylin- I with a pair offolding rolls for receiving the folded product, lof pivoted brackets on which said rolls are journalled, the pivbts of the brackets for each roll being located onthe side of the other roll opposite the cylinder,

whereby said' brackets can be swung on their brackets for each roll being located on the side of thev other roll opposite the cylinder, means for applying spring pressure to hold the rolls in contact with each other, and means for adjusting the spring pressure.l

6. In a folding machine, the combination with a pair of folding rolls for receiving the folded product. of pivoted brackets on which said rolls are joui-nailed, the pivots `of the brackets for each roll being so located that said brackets can swing on their pivots to bring their respective rolls away from the cylinder, an adjustable support for said pivoted brackets, a-nd means for adjusting said support circumferentially lwith respect to\ said folding cylinder.

7. In a folding machine, the combination with a pair of folding rolls, of a pair of pivoted brackets on which one of the rolls is supported, the pivots of said brackets being located in a position beyond the roll and offset therefrom, whereby when the brackets swing away from the cylinder the roll will be moved directly away from its circumference, yielding means forholding said roll toward the cylinder comprising a spring at each end of it, a longitudinal shaft having a Worm fixed on one end and provided with a collar loose on the other endhaving a worin thereon, means connected with each of said worms for adjusting the resiliency of the spring at the respective ends of the shaft, and two adjacent wheels, one on the shaft and one on the collar located adjacent to each other for adjusting the two worms either simultaneously or separately.

8. In a with a folding cylinder and a pair of folding rolls, of means for pivotally supporting one of said rolls so that it can move directly away from the cylinder in case it encounters resistance, said means comprising a pair of brackets, a pin on the frame of the machine adapted to enter a depression in one of said brackets to normally hold the bracket against motion away from the cylinder, said pin being adapted to be broken by the application of excessive strain to it, whereby' the rollywill be freed immediately and any paper choked against the surfaces of /the roll canbe re-A moved.

9. In a folding machine, the combination with a folding cylinder and a pair of folding rolls, of means for pivotallysupporting one of said rolls so that it can move, said means comprising a pair of brackets, a pin adapted to enter a depression in one of said folding machine, the combination' brackets to normally hold the bracket, said pin'being adapted to be broken by the' application of excessive strain to it, whereby the roll will be freed immediately and any paper choked against the surfaces of the roll can be removed.

' 10. In a folding machine, the combination with a pair of folding rolls,of a pair of pivoted brackets onwhich one of the rolls in supported, yielding means for holding said roll in position comprising a spring at each end ofl it, a longitudinal shaft having a worm fixed on one e'nd and provided with a collar loose on the other end having a worm thereon, means connected with each end of said worm for adjusting the resiliency of the spring at the respective ends of the shaft, and two hand wheels rotatable on the same axis, one" on the shaft and one on the collar located adjacent to each other for adjusting the two worms either-simultaneously or separately.l

1l. In a folder, the combination with a folding roll, a screw adjustment for each end thereof, a worm for turning each screw, a shaft to which one worm is fixed, a collar rol tat-able on said shaft to which the other worm is fixed, and two hand wheels on the shaft and collar respectively for turning them individually to adjust 'either end of the folding roll, said hand wheels being located adjacent to each other so that they both can be turned with the same hand to ,adj ust the roll bodily back and forth in a direction transverse toits axis. y

12. In a folder, the combination with a pair of folding rolls and means for adjusting each end of one of said rolls independently toward or from the other roll, said means comprising two hand wheels independently rotatable on the same axis and located close be turned separately. E

13. In a folder, the combination with a folding cylinder and a pair of folding rolls, of means for supporting said rolls, said supporting means having elongated curved slots at each end concentric with the folding cylinder and means for adjusting saidrolls circumferentially with respect to thev folding cylinders, an arm projecting from said supporting means forvcooperatmg with the last named means, and means for holding the rolls in any adjusted position along said slots.

In testimony whereof I have hereunto affixed my signature. v

HENRY A. WISE WOOD.

Images