US660343A

US660343A - Rotary folding-machine.

Info

Publication number: US660343A
Application number: US73433699A
Authority: US
Inventors: William Spalckhaver
Original assignee: Individual
Current assignee: Individual
Priority date: 1899-10-21
Filing date: 1899-10-21
Publication date: 1900-10-23
Anticipated expiration: 1917-10-23

Description

No. 660,343. Patented Oct. 23, I900. w. SPALCKHAVER.

ROTARY FOLDING IAGHINE.

(Application filed Oct. 21, 1899.

(No Model.)

yum

' Iwerafir THE norms PE\\'ERS 00.. PHoro-uwa, WASHNGTON, n. c.

UNTTED STATES PATENT OFFICE.

WILLIAM SPALOKHAVER, OF NEW YORK, N. Y., ASSIGNOR, BY DIRECT AND MESNE ASSIGNMENTS, TO ROBERTHOE AND CHARLES W. CARPENTER,

OF SAME PLACE.

ROTARY FOLDING-MACHINE.

SPECIFICATION forming part of Letters Patent N 0. 660,343, dated October 23, 1900. Application filed October 21,1899. Serial No. 734,336. (No model.)

To 00% whom it may concern.-

Be it known that I, WILLIAM SPALOKHAVER, acitizen of the United States, residing at New York, county of Kings, and State of New York, have invented certain new and useful Improvements in Rotary Folding-lvlachines, fully described and represented in the following specification and the accompanying drawings, forming a part of the same.

This invention relates to certain improvements in rotary folding mechanisms.

In folding mechanism used in fast webprinting machinery the folding is ordinarily effected bya cylinder which is provided with folding-blades lying within the circumference of one of the cutting and collecting cylinders, said cylinder being provided, in addition to the folding blade or blades, with one member of the cutting mechanism and also with sheettaking devices-such, for instance, as sheettaking pins-the other cylinder carrying the other member of the cutting mechanism. In the operation of these cylinders a set of pins takes the leading edge of the web and carries it onward, and after a length of web has been laid on the cylinder the cutting mechanism operates to out off a sheet. The sheet is then tucked intermediate its length by the folding-blade, which is protruded from the cylinder for that purpose, into the bite of folding-rollers, by which the fold is completed. In this operation the folding-blade is necessarily protruded beyond the surface of the cylinder for some little distance. At this time, therefore, the circumferential speed of. the edge of the blade is greater than the surface speed of the cylinder, and consequently than that of the sheet lying on the cylinder. The result of this is that there is a slip between the sheet and the edge ofthe blade, and if the folding-blade is arranged exactly half-way between the pins or other sheettaking devices and the cutting mechanism the sheet will not be folded in its center, but will be folded so that one of the plies of the fold is longer than the other. This difference in length between the plies of the sheet varies, of course, according to the speed at which the cylinder is run. After the folding-cylinder has been set up, therefore, it is necessary to adjust either the cutting mechanism or the folding mechanism so as to correct the inequality in the fold. The adjustment of the folding-blade is a difficult and expensive operation, and consequently is rarely resorted to, the necessary adjustment being usually effected by shifting one member of the cutting mechanism which is carried by the cylinder. This may be done in various ways and'is usually done by removing the cylinder and planing out the recess in which the block is located either on one side or the other, so that the block may be set either one way or the other, according as the ply of the sheet between the foldingblade and the cutting mechanism is longer or shorter than the other ply. This is not only an expensive operation, but is further objectionable, because the cutting-cylinder is usually provided with a plurality of cutting members and a plurality of sheet-taking devices, these sheet-taking devices being usually, as has been before'said, pins. These pins project through apertures in the cylinder, and consequently are circumferentially inmovable. A movement of the cutting members either toward or away from the pins, therefore, varies the marginal distance at which the pins take the paper. If any considerable adjustment is necessary, as sometimes happens, the pins will be caused to take the paper either too far in on the margin, in which case they disfigure the paper, or too far out, in which case they take .the paper too near the edge to secure a good hold and are liable to tear out of the sheet. Furthermore, the amount of variation in the fold depends upon the speed at which the cylinder is running. An adjustment, therefore, which is calculated on the basis of a given speed of the cylinder is not the adjustment which is needed when the cylinder is running at a different speed.

It is one of the objects of this invention to produce a folding-cylinder in whichan-ea'sy, simple, cheap, and convenient means is provided for producing adjustment between the folding-blade and the cutting and sheet-taking mechanisms.

A further object of the invention is to produce a folding mechanism in which an adjustment can be effected between the folding mechanism and the cutting mechanism, which adjustment can be readily changed at any time, so as to suit any variation of speed in the machine.

With these and other objects in view the invention consists in certain constructions and in certain parts, improvements, and combinations, as will be hereinafter described, and fully pointed out in the claims hereunto appended.

In the accompanying drawings, which form a part of this specification, and in which like characters of reference indicate the same parts, Figure l is a view, partly in section, of a pair of cutting and folding cylinders, one of the cylinders being provided with one member of the cutting mechanism and sheet taking and folding mechanisms. Fig. 2 is a front View of one of the cylinders.

Referring to the drawings, which illustrate a preferred embodiment of the invention, 1 indicates a cutting-cylinder of the ordinary type. This cylinder is mounted on a shaft 2 and is provided with the usual cutting-blade 3. The cylinder 1 cooperates with the cutting and folding cylinder 4;, said cylinder being mounted on ashaft 5. The cylinder 4 is preferably provided with a plurality of folding devices. In the present instance these folding devices are two in number and con sist of the ordinary folding-blades 6 and 7, which are operated in any usual or ordinary manner. Inasmuch, however, as the construction which operates them has no relation whatever to the present in vention,illustraiiou of the same has been omitted. The foldingblades 6 and ,7 cooperate with a pair of

rolls

8 and 9, the sheet being tucked between these rolls in the ordinary manner. In addition to the two folding-blades before described the cylinder is also provided with a plurality of sets of sheet-takingdevices, which, as shown, consist of two sets of

pins

10 and 11. pins 10 are jointed to'arms 12, mounted on a rock-shaft 13, and pins 11 are jointed to arms 14, mounted on a shaft 15. The cylinder is further provided with a plurality of cutting members which cooperate with the blade 3, these cutting members being the ordinary cutting-blocks 16 and 17.

As has been before indicated, in the operation of the devices so far described the end of the web W, coming from any suitable source, is taken by the pins 10 and carried around until the blade 3 registers with the cuttinggroove in the block 17, by which action a sheet is cut from the web. If the cylinder is not to collect, the cutting-blade '7 is now protruded and tucks the sheet between the

rolls

8 and 9. If the circumferential distance from the pins 10 to the folding-blade is equal to the circumferential distance from the blade to the cutting-block, it has been found in operation that the two plies of the folded sheet will not be equal in length,

The

this being due to the fact that as the blade 7 is protruded beyond the surface of the cylinderit moves faster than the surface of the cylinder, and consequently faster than the sheet, thus producing a slip between the two. In order to correct this inequality in the fold, the cutting member and the pins instead of being immovably mounted in the cylinder, is usual, are mounted so as to have a circumferential adjustment in the cylinder. This may be effected in various ways. Preferably, however, the euiting-blocks 10 and 17 and the pin-shafts 13 and 15 will be mounted in segmental plates 18 and 19. These segmental plates 18 and 19 rest upon the shoulders 21 22 23 '24, formed on the cylinder, the shoulders being of sufficient depth so that the outer circumference of the segmental plate coincides with the circumferential line of the cylinder. The distance between the radial parts of each pair of shoulders is greater than the circumferential length of the plates 18 and 19, so that adjustment of the plates is permitted. i

The circumferential plates 18 and 19 may be secured to and adjusted in the cylinder in any suitable or desired manner. Preferably, however, the plates will be given their circumferential adjustment by means of adjusting-screws 25. These adjustingrscrews, of which there are preferably two pairs for each plate, engage tapped holes in the sides of the plate, and their heads bear against the radial portions of the shoulders. By loosening one pair of screws and tightening the other it is obvious that the plates may be given the required circumferential adjustment. The plates may be held in position after adjustment in any suitable manner, but are preferably so held by means of set-screws 26, which pass through holes in the plates 18 and 19 and engage tapped holesin the cylinder. The

pins

10 and 11 pass through perforations formed in the plates 18 19.

It is obvious, of course, that the plates 18 and 19 instead of carrying the cutting-blocks might carry the cutting-blades, which in this case Wou ld cooperate with a cutting-block carried on the cylinder 1. The construction shown, however, in which the cutting members and sheet-taking device are adjusted, is preferred, as it is cheaper and simpler.

Numerous changes and variations may be madein the construction by which the invention is carried into effect. It is to be understood, therefore, that the invention is not limited to the specific devices which are shown and described.

What I claim is 1. The combination with a cylinder carrying a folding mechanism and provided with sheet-taking devices, and one member of a cutting mechanism, of means for giving the sheet-taking devices and the member of the cutting mechanism a simultaneous circumferential adj ustmentwith respect to the folding mechanism, substantially as described.

2. The combination with a cylinder carrying a foldingblade and provided with a set of sheet-taking pins and one member of a cutting mechanism, of means for simultaneously adjusting the pins and cutting member with relation to the folding-blade, substantially as described.

3. The combination with a cylinder provided With a folding-blade and. having sheettaking devices and one member of a cutting mechanism, of means for adjusting the member of the cutting mechanismwith relation to the folding-blade, substantially as described.

4:. The combination with a cylinder carrying a plurality of folding mechanisms, and provided with a plurality of sets of sheet-taking devices and a plurality of cutting members, of means for simultaneously elfecting an adjustment between each set of sheettaking devices and cutting members and its cooperating folding mechanism, substantially as described.

5. The combination with a cylinder pro vided with a folding-blade, ofa plate mounted therein, sheet-taking devices and a cutting member carried by the plate, and means for ci rcnm ferentially adjusting the plate,substantially as described.

6. The combination with a cylinder provided with a plurality of folding-blades, ofa plurality of plates, sheet-taking devices carried by each plate, a cutting member carried by each plate, and means for circumferentially adjustingthe plates, substantially as described.

7. The combination with a cylinder provided with a plurality of rotary folding-blades, of a plurality of plates, sheet-taking devices, and a cutting member carried by each plate, and means for circumfercntially adjusting the plates, substantially as described.

8. The combination with a cylinder provided with a plurality of folding-blades, ofa plurality of plates, a set of sheet-taking pins carried by each plate, a cutting member carried by each plate, and means for circumferentially adjusting the plates, substantially as described.

9. The combination with a cylinder provided With a plurality of rotary foldi ng-blades, of a plurality of plates, a set of sheet-taking pins carried by each plate, a cutting member carried by each plate, and means for circumferentiall y adjusting the plates, substantially as described.

10. The combination with acylinder provided with a plurality of folding-blades and having recesses therein, of a pluralityof segmental plates seated in the recesses, each of said plates carrying sheet-taking pins and a cutting-block, means for circumferentially adjusting each plate, and means for locking each plate in its adjusted position, substantially as described.

11. The combination with a cylinder provided with a plurality of rotary folding-blades and having recesses therein, ofa plurality of segmental plates seated in the recesses each of said plates carrying sheet-taking pins and a cutting-block, means for circumferentially adjusting each plate, and means for locking each plate in its adjusted position, substantially as described.

12. The combination with a cylinder provided with a plurality of folding-blades and having a plurality of recesses, of a plurality of segmental plates seated in the recesses, each plate carrying a set of sheet-taking pins and a cutting-block, of two sets of adjustingscrews for each plate, and screws for locking each plate in position, substantially as described.

13. The combination With a cylinder pro vided with a pl n rality of rotary folding-blades and having a plurality of recesses, of a plurality of segmental plates seated in the recesses, each plate carrying a set of sheet-taking pins and a cutting-block, of two sets of adjusting-screws for each plate, and screws for locking each plate in position, substantially as described.

In testimony whereof} have hereunto set my hand in the presence of two subscribing witnesses.

WILLIAM SPALOKHAVER. Witnesses:

F. W. H. CRANE, L. ROEHM.