US779331A - Printing-press attachment. - Google Patents

Description

No. 779,331. PATENTED JAN. 3, 1905. J. H. TIFPT.

PRINTING PRESS ATTACHMENT.

APPLICATION FILED JUNE 291903.

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PRINTING PRESS ATTACHMENT.

APPLICATION FILED JUNE 29.1903.

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No. 779,331. PATENTBD JAN. 3, 1905. J. H. TIPPT. PRINTING PRESS ATTACHMENT.

APPLICATION FILED JUNE 29,1903.

3 SHEETSSHEBT 3.

. I I. M m m UNITED STATES Patented January 3, 1905.

PATENT OFFICE.

PRINTING-PRESS ATTACHMENT.

SPEOIFIGATIONforming part of Letters Patent No. '7 79,331, dated January 3, 1905.

Application filed .Iune 29, 1903. Serial No. 163,606.

To all whom it may concern.-

Be it known that I, J AMEs H. TIFFT, a citizen of the United States,residing at Eau Claire, in the county of Eau Claire and State of VVisconsin, have invented a new and usefulPrinting-Press Attachment, of which the following is a specification.

This invention relates to printing-press attachments for feeding, ruling, splitting, perforating, and rewinding or cutting paper.

The object of the invention is to produce an automatically-operated attachment of the character specified adapted for use upon presses of any ordinary construction and susceptible of adjustment to feed a web of paper at any desired rate and to cut it off in sheets of any desired size.

A further object of the invention is to'produce a printing-press attachment of the type specified of simple construction and positive operation, which may be inexpensively built, and which will be durable in service.

A further object of the invention is to produce an attachment of the class described by means of which the paper will be fed forward only between successive impressions from the type and by means of which the paper may be caused to move in the impression-plane.

A further object of the invention is to provide an improved and simple form of rewinding mechanism whereby the paper may be re wound upon a roll similar to that from which it is unwound prior to printing.

With the objects above stated and others in View, which-will appear as the invention is better understood, the same consists in the construction and combination of parts of a printing press attachment hereinafter described, illustrated in the accompanying drawings, forming a part of this specification, in which corresponding parts are designated by the same characters of reference in the several views in which they appear, and having the novel features thereof particularly pointed out in the appended claims.

In the drawings, Figure 1 is a view in side elevation of the attachment supported on the feed-bed of a job-printing press of the bedand-platen type. Fig. 2 is a view in longitudinal verticalsection through the attachment.

Fig. 3 is a rear elevation of the attachment and receiving-table.

In the drawings there is illustrated but one form of embodiment of the invention, the same being shown applied to a job-printing press of the type employing a type-bed and movable platen, such parts only of the jobpress being shown as are necessary to show the relation of the attachment thereto.

Referring to the drawings by reference characters, 1 designates the feed-board, 2 the platen, 3 the impression-arm, and 4. the armwheel, of a job-press.

The attachment comprises a supportingframework consisting of side plates 5 and a suitablebedplate 7, the latter being supported upon the feed-board of the job-press and the former being secured to the latter in any suitable manner. At the forward end of the supporting structure there is mounted in bearings provided in the side plates 5 a shaft 7, carryinga roll 8, which is preferably of cylindrical form, as shown. Immediately above the roll 8 is supported in bearing-blocks 9, slidably mounted in slots 10 of the side plates 5, a shaft 11, upon which are secured, by means of set-screws 12 engaging a longitudinal slot in the shaft, a plurality of disks 13, which may be adjusted longitudinally of the shaft to avoid contact with a freshlyprinted surface. The bearing-blocks 9 move up and down in slots 10 and are held normally toward the bottom of said slots by means of springs 14, which encircle guide.- rods 15, fixed in the upper ends of the slots 10 and entering suitable openings provided in the bearing-blocks 9. The guide-rods 15 are threaded and are provided with nuts 16, by means of which the pressure of the springs upon the bearingblocks may be adjusted. The roll 8 is of such size and is so placed that when paper is passed up over it from a supply-reel mounted in the lower part of the jobpress (not shown in the drawings accompanying this specification) the paper will lie exactly in the plane of im pressionthat is, in the plane occupied by the paper while being printed.

In order to impart motion to the rolls, I provide a rod 17, pivoted at its lower end to the platen of the'press and having the upper IOC end secured by a pin and clampingnut to a slotted lever-arm 18, through the slotm which the pin passes. The lever-arm 18 carrles a ratchet 19, adapted to engage the cogged pe' riphery of a gear 20, supported on a stud 21, projecting from one of the side plates 5 and also supporting the lever-arm 18. Gear20 meshes with a smaller gear 22, supported on a stud 33 beneath the gear 20, and the gear 22 meshes in turn with a small gear 24, rigidly secured to the shaft 7, which carries the feedroll 8. Upon the same shaft is secured a larger gear 25, which meshes with a gear of similar size 26 upon the shaft 11, which supports the pressure-disks 12, which cooperate with the feed-roll 8.

By means of the mechanism just described at every downward movement of the platen of the press preceding the production of an impression upon the paper (shown at P) there is produced a downward movement of the rod 17 and lever-arm 18, causing the ratchet 19 to move freely over the cogged periphery of the gear 20. hen the downward movement of the platen ceases, the ratchet 19 ceases to slip over the gear-teeth on the gear 20, and as soon as the printing operation is over the platen starts upward again and ratchet 19 engages positively with one of the cogs of the gear 20, causing it to revolve in the direction indicated. The movement of the gear 20 is imparted to gear 22 and thence to gears 24, 25, and 26, resulting in movements in the directions indicated by the arrows shown on the various gears.

The amount of movement produced in the gear 20 at each upward movement of the platen will be determined by the adjustment of the pin on the rod 17 in the slot in the lever-arm 18, the movement of the gear 20 being increased when the pin on the rod 17 is moved toward the pivotal point of the leverarm and being decreased when it is moved toward the free end of the lever-arm.

The movement of the feed-rolls will always be proportionate to the throw of the arm 18 and the movement of the gear 20.

At the rear of the supporting structure of the attachment there is provided a grooved feed-roll 27, carried by a shaft 28, journaled in suitable openings in the side plates 5. Above the feed-roll 27 and mounted in sliding bearing-blocks 29 is a shaft 30, upon which are secured a plurality of disks 31, like the disks 12 on the shaft 11. The bearing-blocks 29 are slidably mounted in slots 32 in the side plates 5 and are normally pressed downward by springs 33, encircling guide-rods 34 and adjusted in tension by nuts 35 in threaded engagement with said guide-rods.

Upon one end of the shaft 7 is rigidly secured a sprocket-wheel 36, and upon the corresponding end of the shaft 28 is secured a similar sprocket-wheel 37. The sprocketchain 38 passes over the sprockets 36 and 37,

as well as over other sprockets presently to be described, and forms means whereby the movement of the feedroll 8 will be communicated to the feed-roll 27. Movement is im parted to the shaft 30, upon which are secured the disks 31, by frictional contact of said disks with the upper surface of the feed-roll 27 by the paper passing over the same.

Pivotally supported in the side plates 5, near the forward ends thereof, is a frame 39 of ordinary construction, bearing a plurality of ruling-pens 40, mounted therein and adapted when the frame 39 is in the position indicated in Fig. 1 to rest upon and rule the upper surface of the paper P.

Just in front of feed-roll 27 and the sectional roll above it are rolls 41 and 42, supported on shafts 43 and 44, respectively, and connected by gears 45 and 46, rigidly attached to said shafts. The rolls 41 and 42 are provided with slitting devices or perforating de' vices or ordinary construction, or both, and motion is imparted to said slitting and perforating devices by chain 38, which passes under a sprocket 47, attached to shaft 43 of the roll 41.

Above the feed-rolls at the rear of the attachment is mounted in suitable bearings a shaft 48, upon which is supported a drivingroll 49, the roll 49 being driven by means of a sprocket 49 on one end of the shaft and engaging with the sprocket-chain 38. Resting upon the upper surface 49 of the roll is a rewinding core or spool 50, which is preferably of sectional construction to facilitate its removal from a cylinder of paper formed thereon. The spool 50is supported upon ashaft 51, and this is journaled in bearing-blocks 52, mounted for vertical movementin slots 53, provided in the side plates 5 above the roll 49. No springs are used to hold the spool 50 in contact with the roll 49; but the weight of the spool is sufficient to secure proper frictional contact. The spool 50 forms means for re- Winding the paper, if desired, after the printing operation is completed.

At the rear of the attachment there is provided a shear comprising a pivoted knife and a fixed member 56, from which guide-fingers 56 extend to the grooves in roll 27 The knife 55 is mounted for movement in ways 57, as shown, and motion is imparted to the knife through a suitable lever 58, connected with said knife 55 by means of a link 59. The lever 58 is of the bell-crank type and is pivotally mounted at 60. To the vertical arm of the bell-crank lever 58 is pivotally attached a link 61, also attached to an operating-lever 62, pivoted at 63 and having at the lower end an idle roll 64, adapted to engage cam-wheel 4 of the press. The lever 62 is normally held by the cam-wheel 4 of thejob-press in such position that the knife 55 will be normally held above the knife 56 and permit the free passage of the paper between them; but at the time when the paper is held stationary between the movements of the feed-rolls the lever 62 will be rocked upon its pivot by the cam-wheel A and the knife 55 will be drawn down by spring 65 and sever any sheet of pa' per or other fabric passing out of the machine at that time. At each reciprocation of the movable knife 55 a sheet of paper is severed from the web and is allowed to drop upon the receiving-table 66.

WVhen the attachment is applied to a jobpress not provided with a cam-Wheel or equivalent of the wheel 4: shown in the drawings, which forms in the ordinary type of jobpresses means for locking the platen in position during the printing operation, the leverarm 62 will be adapted for engagement with some other part of the press whose operation is similarly timed, so that the cutting movement of the knife 55 will'occurwhile the web of paper or other fabric is stationary.

When the attachment is applied to cylinderpresses, it will be necessary to rearrange it diflerently in relation to the parts of the press and to substitute other means of operating rod 17 and lever 62, and instead of the receivingtable 66 some other device will preferably be employed-as, for example, delivery-tapes of the usual type, which may be run over a friction driving-roll 67, beneath the lower member of the rear pair of feed-rolls, and down to the feedguides, where the paper will rest against the feed-guides of the cylinder-press until such time as the nippers come and take the sheet for printing.

IVhen the attachment has been placed in position upon the feed-board of a job-press or in suitable relation to another form of press and the press is set in operation, the feed-rolls will be intermittently operated by the action of some member of the operating mechanism of the press, the movement of the rolls occurring immediately after each printing operation and allowing the paper to remain perfectly still during each printing operation, so preventing any blurring of the impression produced by the type. The paper after passing between the first pair of feed-rolls may be carried directly to the rewinding roll and spool at the rear of the attachment, in which case the paper will pass along the dotted line designated P, or it may pass between the rolls carrying the slitting and perforating devices and between the rear feed-rolls, from which it may be led to the rewinding roll and spool or allowed to pass out between the shear mem bers at the rear of the attachment. When the paper is rewound, after passing through the rear feed-rolls it will pass upward in the clotted line designated P", and when it goes from the feed-rolls to the shears it will lie in the position indicated by the solid line and the sheets severed by the shears will drop down upon the receiving-table, as shown.

When it is desired to rule the paper during its passage through the attachment, the pivoted frame carrying the ruling-pens will be turned downward so that the pens rest upon the upper surface of the paper, as shown in solid lines in Fig. 1, and when the ruling-pens are to remain inoperative the frame carrying them will be tilted upward, so that the pens do not contact with the paper.

The attachment will of course be made of different sizes in order to adapt it for use with presses of different sizes,and certain variations -in the design of the supporting structure will be resorted to in order to adapt the attach-' ment for use upon presses of different forms.

As the means for connecting the attachment with presses of various forms will depend upon the construction of the press in each case and do not form integral parts of the invention for which I desire to secure Letters Patent, I have shown and described only one form of the connecting devices which I may employ, as one form is sufficient for purposes of illustration of the operation of the attachment.

While I have shown and described the preferred form of embodiment of my invention, it is obvious that various changes in the form, proportions, and other minor details of construction may be resorted to without departing from the spirit of the invention, and I reserve the right to make such changes therein.

Having now described the construction and operation of my invention, what I claim as new, and desire to secure by Letters Patent, 1s 7 1. In an attachment for printing-presses, two pairs of simultaneously-operated paperfeeding rolls, said rolls being spaced apart and forming a support for a web of paper, paperruling and paper-slitting devices arranged between the said pairs of rolls and operating upon the upper surface of the paper, means for operating said rolls in unison after each printing operation, and driving connections between said paper-feeding rolls and said slitting devices.

2. In an attachment for printing-presses, two pairs of paper-feeding rolls spaced apart and forming a support for a web of paper, superposed shafts bearing slitting devices, between which said paper passes, sprockets associated with each pair of feed-rolls, a sprocket upon one of the shafts of the slitting devices, and a sprocket-chain arranged to travel over the sprockets associated with the feed-rolls and under but in engagement with the sprocket associated with the slitting devices.

In testimony that I claim the foregoing as my own I have hereto aflixed my signature in the presence of two witnesses.

JAMES H. TIFFT.

Witnesses:

E. R. BUOHHOLZ, J. M. SoRLIE.

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