US1001445A - Web-operating mechanism. - Google Patents

Description

W. H. RICHARDSON. WEB OPERATING MECHANISM.

APPLICATION FILED OUT-5,1910.

Patented Aug. 22, 1911.

gewtqz 6:1, a I K WILLIAM H. RICHARDSON, OF JERSEY CITY, NEW JERSEY.

' WEB-OPERATING MECHANISM.

Specification of Letters Patent.

Patented Aug. 22, 1911.

Application filed October 5, 1910. Serial No. 585,358.

To all whom it may concern:

Be it known that I, WILLIAM H. RICHARD- soN, a citizcnof the United States, residing in the city of Jersey City, county of Hudson, and State of New Jersey, have invented certain new and useful Improvements in \Veb- Operating Mechanism, of which the follow ing is a full, clear, and exact specification.

This invention relates to web operating mechanism and has for its object to provide simple and eflicient mechanism for intermittent y. adjustably accelerating the forward speed of a web. a

The improvement is peculiarly adapted for use on a printing press in which the cen ters ofthe impressions are to be spaced far-- ther apart than the circumference of the printing cylinder. Vhen such employment is in a cylinder press for printing a web from which sheet lengths are to be cut the "amount of acceleration may be varied for enabling a single roller or printing cylinder to do duty in connection with sheets of many l lengths, for instance a printing roller of a V 'ven diameter may 'be employed for print lng upon a Web for making sheets of a length e ual to the circumference of the rolleror 0% any much greater length which is desired, I

In the drawings accompanying and forming a part of this s ecification Figure 1 illustrates diagrammatically the end view of a web present improvement. detail of one of the guide rollers and the printing press equipped with my accelerating 'mechanism, Fi g. 3 a cross 'section of the/device illustrated in F g.1,

showing the'adjustability of the accelera tors, Fig, 4 is an enlarged detail view of the feed cylinder and cutting devices.

' I A web of material 5, which web may, if

desired, be cloth, will be fed into the machine from, some. suitable source and will passover suitable guide-rollers and pass between theprinting-eylinder 6 and the platen cylinder '7, and through and over other guide-rollers to the feeding and cutting mechanism 8. The feeding and, cutting mechanism engages and draws forward the web and cuts the same into sheets of predetermined length, and it may be adjusted .as occasion demands for determining the len th of the sheets. The feeding and cutting mechanism herein illustrated comprises. a

cylinder composed of, two halves 20, 20,

Fig. 2 is an enlarged and adjusting-screws 22, are provided for the purpose of effecting the relative adjustment of thecylinder halves. The cutter proper herein illustrated is, a saw caused to travel within the cylinder by any suitable means. The saw is located partly within the cylinder and protrudes through the openings 27, between the cylinder halves. The travel of the cutter is so timed that it will cut the fabric behind one of: the rows of holding-- pins on the cylinder and in front of the other row. The Web Wlll always be engaged by one of the rows of pins and at times by both rows.

The printin cylinderfi isshown provided with a raised printing-surface 9, and a plane-surface 10, so that its circumference is divided between a printingrsurface and a plane-surface. The cylindrical platen"? is disposed at a sufficient distance from the printing cylinder 6, that the printing surface 9 will properly act upon the web 5 passing between the cylinders at the time the printing-surface is opposed to the platen, and that at the time the planeportion is presented in opposition to the platen,"ithjeres;

will be sufiicient s ace between the .c li'n'dcrs to permit the We tomove at a iiferent .(sipeed than the surface speed of the cyliners.

If the call of the feeding-device 8 is "such and the shaft 12. When, however, the callof=the feeding-device is in excess of the normal delivery of theprinting 'cylinder 6, the

web must be accelerated between implies sions' an amount suflicient to'sat'isfy the call of the feeding-device. Asthe webis passed across the pr nting-cylinder, it will be" er mitted to move at the same surface spec as the printin :surface-portion 9, while this" printing-'sur ace-portion. is in its rinting position. After the printing-ear ace portion has all run over the web, the web will then be given an accelerated movement anddrawn, across the plane-surface 10 of the rinting-cyl mder, in the present illustration hy means of series of web-engaging devices carried bythe shaft 12.

The shaft 12 is driven in' proper sequential timing with the feeding-device 8 and is shown having a pair of adjustable brackets 13, which are shown provlded w th radially-disposed ways 14, for receiving the ends 15,.of bars 16. bars which will engage the web to accelerate its feed. The ends 15 are adjustable in the ways 14. They will be held in their p0s1-- tions of adjustment by some suitable means as for instance, tap-bolts 17. By means of the radial adustment of the members 16 toward or away from their axis of revolution-that is, the axisof the shaft l2-the amount of acceleration given the web may be adjusted so that the intermittent accelerations will be equal to the difference between the circumference of the printing cylinder 6 and the distance between the centers-of the printed matter on "the web.

The printing-cylinder. 6, the shaft 12, and the cutt-ingand-feeding-device 8, are shown geared'together by a suitable train of gearwhich will cause these parts to move in unison;

Although I have shown but oneform of d mechanism for carrying out my 1mprovc- Iment, yetchanges may be made within the Scope of 1 my invention without departing therefrom. I

' .Having thus described my invention what I claim and desire to secure by'Letters Pat- -entis:

1; The combination with a cylinder having a printing surface on a portion only of its perimeter, 3 of severing mechanism, and means interposed between the printing cylinder and severing mechanism including 'means fo'r guiding a' Web away from such cyllndel iind adjustable' means associated with a member of the-said guiding means ing thefeed if the Web while for accelerating, the web movement between impressions.

2. The combination with a roller having its erimeter divided into a printing surface an a plane surface, of severing mechanism means for passing a web across said roller and rotatable mea-ns interposed between the printing surface and severing mechanism and adapted to engage the web for acceleratpassing over theplane .poiition.

' 3-,; The combinatio with a cylinder hav-.

The bars are the mem cutting devices and the -w1tnes ses.

' WILLIAM H. RICHARDSON.

ing its perimeter divided into a printing surface and a plane surface, of meansl' 'for passing a web across said cylinder and comprising a small guide roller and web-engaging members carried by said roller at one side thereof.

4:. The combination with a cylinder having its perimeter divided into a printingsurface and a plane surface, of means for passing a web across said cylinder and comprising a small ing members carried by said roller and means for radially adjusting said members.

5, The combination with a printing cylinder and a platen cylinder, the printing cyl-' inder being provided with a raised printing surface and ,a plane surface, said plane surface being located in position to make a clearance with the platen cylinder, of a circumferentially-adjustable web feeding device and a cutting device, a guide roller between the web feeding device and the printing cylinder and provided with a portion of small radius and and gearing between said web feeding and printing cylinder and the said guide roller for causing these parts to move in unison and for causing the portion of grpate'r radius of the guide roll to'engage the web while this is in engagement with the plane surface of the printing 6. The combination with a der provided with a cylinder.

printing surface upon a portion of its perimeter and a plane surface upon another portion thereof,;iof'an auxiliary cylinder, circumferentially adjustable, a guide roller for the web'cumprising a portion of small radius and a plurality of members carried thereby and making a surfaceof greater radius, means for adjusting the radial distance of said members from said roller, printing cylinder,

guide roller together, to move in unison, i1:-

respective of the adjustment of'said ad} justable members and timed for bringing a portion of larger radius,-

means connecting said auxiliary: cyl nder and guide roller and web-engagpr y inthe same into engagement with,the "web? while this is passing of the cylinder.

In witness whereof I have hereunto set my hand in the itnesses "over the plane urfa e;

.-1( presence of two subscribing CHAs. LYON RUSSELL, I

WM; O. DUNN.

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