US1172752A

US1172752A - Printing-machine.

Info

Publication number: US1172752A
Application number: US57578510A
Authority: US
Inventors: Arthur K Taylor
Original assignee: R Hoe and Co Inc
Current assignee: R Hoe and Co Inc
Priority date: 1910-08-05
Filing date: 1910-08-05
Publication date: 1916-02-22
Anticipated expiration: 1933-02-22

Description

A. K. TAYLOR.

PRINTING. MACHINE.

APPLICATION FILED AUG-5, 1910.

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PRINTING MACHINE.

APPLICATION FILED Aue.5. 1910.

Patented- Feb. 22, 1916.

2 SHEETS-SHEET 2.

INVENTOR m m Illllllllllllllilllll WITNESSES UNITED STATES PATENT OFFICE.

ARTHUR K. TAYLOR, 0F BALTIMORE, MARYLAND, ASSIG-NOR TO HOE AND 00., OF

. NEW YORK, N. Y., A. CORPORATION OF NEW YORK.

. PRINTING-MACHINE.

Specification of Letters Patent," I

Application filed August 5, 1910. Se 1i'a1No. 575,7B5.

To all whom it may concern:

Be it known that I, ARTHUR K. TAYLOR, a citizen of the United States, residing at Roland Park, Baltimore, State of Maryland, have invented certain new and useful Improvements in Printing Machines, fully de scribed and represented in the following specification and the accompanying drawings, forming a part of the same.

Thisinvention relates to improvements in printing machines, and more particularly to that class of printing machines intended to print on sheets of different lengths, the sheets being cut from a web.

Machines have been heretofore used which print upon sheets out from a web, the machines including cutting devices wh ch operate to cut sheets of different or varylng lengths; In such machines 1t has been customary to bringthe' sheets, after they are cut, to a' stop, in order to properly register them with respect to the sheet taking devices which are to subsequently takepthem, these sheet taking devices being mounted either on one of the cylinders of the print--' ing couple or on an intermediate feeding cylinder. \Vith such machines, part cularly when they are run at high speeds, difficulty has been experienced in properly registering the sheetsagainst the stop, because of the short time in which the registering operation has to be effected. I

The present invention has for one of its objects to produce a printing machine employing a cutting mechanism operating to cut sheets of different lengths, the sheets being delivered on the run from the cuttlng to the printing mechanism, the necessity for stopping the sheets for registration being avoided.

-, A further object of the "invention is to mg means for varying the time of operation of the sheet taking devices, in accordance with the varying lengths of the sheets.

A further object of the invention is to produce an improved mechanism for handling sheets which includes a ciitting mechanism adapted to cut sheets of different lengths from a web and a sheet taking mechanisrn, the sheet taking mechanism operatcutting mechanism. Fig. 4

pass the cutting point.

ing to take the head of the sheet at the time thy cutting mechanism operates whatever be the length of the sheet cut. The invention also includes, certain other improvements not necessary to-specifically refer to, .but which will be hereinafter pointed out.

With these and other cally referred to in view, sists in certain constructions, and in certain parts, improvements and combinations as will be hereinafter fully described and then specifically pointed out.

Referring to the accompanying drawings:-Figure 1 is a diagrammatic side elevation, partly in section, of so much of one form of printing mechanism embodying the invention as is necessary to an understanding thereof. Fig. 2 is a detail plan of certain adjusting objects not specifiview, partly in section, mechanism for sheet taking devices which may be employed. Fig. 3 is a detail side elevation, illustrating more particularly the is a view of the mechanism shown in Fig. 3, the position of the observer being indicated by the arrow 4 in said figure.

Machines which include the invention in its entirety will contain a' cutting mechanism which is adapted to cut sheets of dif ferent or varying lengths, i. e. mechanism which may be set so as to cut sheets of different lengths, as required. While the construction of this cutting mechanis nrmay be varied, in the particular construction. illustrated, 1t embodies a the invention concylinder 1 mount ed on a shaft 2 supported in suitable bear- 5 mgs in'the frame, :the cylinder being provided with a knife 3; Cooperating with the c'ylinder'l is a companion cylinder 4: mounted on a shaft 5, this cylinder being provided with a cutting Wood 6. These cylinders are intergeared, as shown, the

shaft 2 of cylinder 1 being provided withs a gear, as 7, and the shaft 5 of the cylinder 4 being provided with a similar gear'8. In order to effect the cutting of sheets of different lengths, these cylinders are driven at varying speeds as the cutting members 7 p In the construction shown, this is effected by providing the shaft 5 with a crank arm 9 provided with asliding block 10 which works. between two-cheek pieces 11 fast on the face of a gear-'12 mounted on a short shaft 13 supported in a sliding bearing 14 suitably guided in the frame. This bearing has a downwardly depending boss 15 into which is threaded a screw 16 which passes downwardly through an opening in the frame and is secured against vertical movement by a washer 17. The screw is provided with a worm Wheel 18 which engages with a worm 19 suitably journaled in the frame and operated in any suitable manner, as, for instance, by a crank handle 20. As the shaft 13 and gear 12 are moved vertically, the block 10 is-brought nearer to or farther from.the center of rotation of the shaft, and, therefore, the speed of the cut- .iing members at the cutting point is proportionately varied. The standard of the frame in which the shaft 13 is journaled may be supported. if desired, by a bracket 21 and through this bracket and. the standard below it there may be tapped a stop screw, as 22, to determine the adjustment of the sliding bearing. The gear 12 is the time of the cutting operation.

driven by a gear 23 which is run. turn for turn with the cylinder.

The particular machine illustrated opcrates upon a web which 'is shown as pass ing' over a guide roller 24: and between a pairof variable length feed rollers 25 which rollers may be intergeared and may be driven in any suitable way to present the I web to the cutting mechanism. As shown, the lower one of the rollers 25 is provided with a gear 26 which meshes with a gear 27 mounted on a stud 28. This stud is se cured in a slot 293' in the frame to enable the position of the ,gear to be shifted. This gear 27 is in mesh with a gear 29, bolted, as indicated at 30, to the face of a gear 31 running loose on the shaft 5. The gear 31 meshes with a gear corresponding in pitch diameter with the gear 23 and located in front of this gear as the same is shown in Fig. 1. -It is apparent that by changing the size of the gear 29', the feed rolls will be driven at varying speeds so as to present more or less web to the cutting cylinders.- It will be understood, of course, that the web passesgfreely between the cutting cylinders, being nipped between them onl%lat 11s variable speed mechanism for the webs and for drivi g the cutting cylinders is wellknown in the art and may be replaced by any (ither suitable mechanism or mechanisms, Guides, as 32, of ordinary construction may be employed, if desired, between the variable feed rollers and. the cutting cylinders.

In machines embodying the invention in its complete form, the sheets will be trans-' ferred on the run, that is to say, without' being stopped, from the cutting mechanism to the printing mechanism. While this may be accomplished in various ways, in the particular construction illustrated, there is employed a sheet carrier consisting of. a:

cylinder 33' mounted, on a shaft 34, this cylinder 33 being provided with a gear 35' meshing with and driving the gear.23.

The cylinder 33, when employed, will be provided with sheet taking devices which may be of any suitable description. In the particular construction -illustrated, these cross-bar of the frame; Rolls40 may be employed, if desired, in connection with this guide, these rolls, when employed, be-;

ing arranged to run slightly faster than the sheet, as is common In such construe tions.

In order to properly present the sheet to When a transferring mechanism of the.

character referred to is employed, means should be provided for varying the time of operation of the closing of the grippers, as

8O ported on abracket 39 extending from a it is obvious that the grippers should close 1 at one time with one len th of sheet and at another time with a di erent length. In the particular construction. illustrated, the

. grippers are closed by a tumbler .pin 44 mounted on an arm 45 fast on a toothed.

disk 46 loosely mounted on the shaft. 34

before referred to. It isapparent that by rotating the disk in one direction or the. other the grippers may be caused to close at different points in the revolntion of the carrier 33. The means for rotating the disk, when this construction is employed, may be of any suitablecharactenj As show n,;the

teeth on the disk are engaged by a worm 47 mounted on a shaft 48 supported on suitable brackets 49 extending inward from the frame, the shaft being operated in any suitable manner, as by a ablev pressure rolls, as. 51, of ordinary conhan'd-wheel 50. Suit-v struction, may be employed in connection with the cylinder 33 to hold the sheet in contact therewith,

The printing mechanism employed car, 1

rying, the invention into effect may be of any suitable character. That illustrated diagrammatically consists of a cylinder 52 provided with sheet taking grippers 53,

these grippers being closed on the sheet to take it from the grippers 36 by a cam, indicated at 54, and being opened to release the sheet by a cam, indicated at55. The cylinder 52, inv the construction shown, is an im-,

pression cylinder, and cooperates with a printing cylinder. indicated at 50. The grippers on the cylinder 52 take the sheet from the grippers 3G and transfer it to grippers 57 on a cylinder 58 .which' cylinder may be a delivery cylinder or an impression cylinder cooperating with a printing cylinder, not shown, to give the sheet a second impression.

Changes amlvariations may be made in the construction by which the invention claimed is carried into effect. The invention claimed. therefore, is not to be limited to the particular construction hereinbetore described and illustrated in the accompanying drawings.

'hat is claimed is:

1. The combination with a printing mechanism, of means for cuttingsheets of different lengths. means including a cylinder having sheet taking devicesfor transferring sheets from the cutting mechanism to the printing mechanism. and means for varying the time when said sheet taking devices take the. sheets. v

"l. lhe combination with a pair of cutting cylinders. of means for feeding a web thereto, means for varying the time. of operation of the cutting cylinders to cut sheets of different lengths. sheet taking mechanism including devices for seizing the head of the sheet. means for causing said devices to seize the head of the sheet at the time the cutting \'liuders operate. and a printing mechanism to which the sheets are delivered.

I). The combination with a constantly rotating cylinder having sheet taking devices of continuously running means for delivering sheets ot dill'erent lengths thereto; and

means lor vanving the time at which the sheet taking devices operate to take the sheet to enable the dill'erent lengths ol sheets to be properly taken.

I. The combination with a constantly ro tating cylinder having sheet taking devices,

of continuously running means for cutting and delivering thereto sheets of dltlerent lengths, and means for varying the time at which the sheet taking'devices operate to take the sheet to enable the different lengths of sheets to be properly taken.

The combination with a cylinder having sheet taking grlppers, of means 1nclud-- inga cutting mechanism driven at varying speeds for delivering sheets of different lengths to the 'cylmder, gripper closlng and opening devices, and means for varying the sheet taking position of the gripper closing devices to enable thedifierent lengths of.

sheets to be properly taken.

6. The combination with'a cylinder having sheet taking grippers, of means includtime at which the closing devices operate to take the sheet to enable the diflerent lengths of sheets to be properly taken.

7. The combination with a cylinder having sheet taking grippers, of means for op erating the grippers to take thesheet, said means including a rotatable carrier 'on which the. operating means is mounted, whereby the point in the revolution of the cylinder at which the sheet is taken maybe varied to enable the different lengths of sheets to be proper y taken, and means operating at a fixed point in therevolution of the cylinder to cause the grippers to release the sheet.

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

ARTHUR K. TAYLOR.

Witnesses:

Puimr R. BERGER, ,lVlu. SPILMAN.