US739818A - Machine for printing linoleum, floor-cloth, &c. - Google Patents

Description

No. 739,818. f l PATENTED SEPT. 29, 1903.

D. N. BBRTIIAM ma. MIIINE. MACHINE POP. PRINTING LINULBUM, TLooII CLOTH. aw.

APPLIATION FILED JUNE 16, 1902. NOMODEL. 2 SHEETS-SHEET 1` N I c g! 00 n Q JPL VIE-1.1.

PATENTED SEPT.A 29, 190s. D. N. BERTRAM @E E. MILNB. MACHINE POR PMNTING LINOLEUM, 111.003 CLOTH, aw.

APPLIOTION FILED JUNE 16, 1902.

l No MODEL.

2 SHEETS-SHEET 2.

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UNITED STATES :Patented September 29, 1902.

v`PATErrr OFFICE.

MACHINE FOPl PRlNTlNG LIVNOLEUM, FLOOR-CLOTH, &c.

SPECIFICATION forming part of Letters Patent No. 739,818, dated September 29, 1903.

Application filed June 16, 1902.` SerialrNo. 111,989. (No model.)

To a/ZZ wiz/om, it may concern:

Be it known that we, DAVID NOBLE BER- TRAM and ROBERT MILNE, subjects cf the King of Great Britain and Ireland, and residents of Edinburgh, Scotland, have invented certain new and useful Improvements in Machines for Printing Linoleum, Floor-Cloth, and the Like, of which the following is a specication.

This invention relates to and-consists of improved apparatus for use in the printing of patterns upon linoleum, door-cloth, and the like; and its object is chiefly to provide a simple arrangement of mechanism for so operating the printing-blocks and feeding the material as to insure of an accurate register of pattern for any length of material.

`On the accompanying drawings, Figure l represents a side Velevation of a machine embodying our invention. Figs. 2 and 3 represent side and edge views, respectively, of an essential part of our invention on a larger scale. Figs. 4 and 5 represent a modication, certain partsin Fig. 5 being removed for clearness; and Figs. 6 and 7, a side view and plan of details.

According to the invention and referring to Fig. 1, we employ a pair'of machine-frame sides 1, 'carried in any suitable manner, but preferably upon rails 2 by carriages 3 vand wheels 3X, to allow of lateral movement. Between such frame sides and extending from end to end we mount a planed and cast-iron table a. At one end of the table we arrange adrum 5 and at the other end a drum 6. Around such drums we pass a pair of vendless" bands 7, one on either sideof the table and with the upper half of each band lying upon or in close proximity 'to the top surface of the table. -Such bands, which are by preference of steel, felt, or cloth, have sharppointed pins 8 for engaging the selvage edges of the fabric to be printed and for carrying the fabric through the machine. The lower half of each band passes over pulleys 7 X, carried by cross-shafts'xx, (see Fig. 4,) and in each pulley is a groove 8X for the pins to take into. pins and help inthe positive traverse of the bands and fabric, the drums have notched`recesses 9, into which the tapered heads of the pins take as the drums rotate. The drums To providev room for the heads of theseI and bands are rotated intermittently by a driving iiy-whel 10 on shaft 11 and a pinion 12 of such shaft, which meshes with a gearwheel 13 on the shaft 14. Upon this latter is a crank or cranks 15, (shown dotted,) also a cam 16. Fast upon the shaft or axle of the drum 6 is a ratchet-wheel 17 and a notched wheel18. Loose upon the shaft is a leverarm 19, carrying a pawl 20, which engages V the teeth of the ratchet-wheel 17. Linked to such lever-arm 19` and to a pin on the cam 16 is a connecting-rod 21, by which as the cam 'rotates the lever-arm is given a to-and-fro or radial movement, and thereby caused to impart an intermittent rotary motion to the ,drums 5 6 and an intermittent traverse of fdius of the cam at that moment comes opposite the lever andallows the lever 22 to "move up and the detent 26 to take into and vlock the wheel 18during the dwell of the drums and bands and the return stroke of thelever-arm 19 and pawl 20.

Upon the frame sides 1 and above the tan ble 4, witha spacebelow each of the bands rods in turn we link or connect to the crank I or cranks 15 on shaft 14:.` Each pair of levers carries a printing-block 32, the block having lstuds 33 at each side taking into the forked or bored ends of the levers, as shown. To

slotted guides 34,'and in such guides is mounted the axis of an inking-roller 35. With thel IOC each block is attached a set of curved andA 'i corresponding arms of the pairs of levers of equal length it will now be seen that when moved by the rods y3l and cranks 15 they will have a radial and parallel movement and owing to the position of the pads 27 will first lower the blocks into contact with the pads for inking and then move back and lower the blocks into contact with the table 4 or the fabric on such table, and thus print the desired pattern or impression. After printing the levers will again move the blocks onto the pads for a fresh supply of ink, and so on continuously. Just prior to and during the impression the dwell7 or pause aforesaid takes place, the fabric, bands, and drums remaining stationary. Vith the retirement of the blocks for re-inking the drums, bands, and fabric are set in motion, and by the time the neXt impression takes place the fabric has moved forward a sufficient distance to present an unprinted part to the block.

The inking-rollers normally lie in the inkducts 28, but travel over the pads, and so ink the same each time the printing-blocks move to and fro for printing, the slotted guides allowing of the rollers always beingin contact.

With a pattern of many colors the several blocks serve to give the respective colors. Hence the number of blocks used depends on the requirements of the pattern, and the traverse of the fabric .is such as to insure the print of one block being in exact register with the print of the other blocks.

Referring to the modification shown in Figs. 4 and 5, We show an ink-pad 27, with two inkducts 28, one in either of the transverse sides, into which the inking-roller dips at the end of each stroke of the levers, and in lieu of the guides 34 being on the blocks 32 we show them mounted on one o f the axes 30 and connected to the rod 3l, the levers 29 being single-armed and keyed to the axes 30 through the coupling-pieces 30 engaging clutch- -iianges SOXX, fast on the shafts 30 or on eX- tended bosses of the levers. The object of this arrangement is to permit of the inkingrollers being traversed several times over the pads, andthereby thoroughly inking the pads before starting the printing operation, the clutches being'engaged and disengaged by a handle 29X, which slides them to and fro on the shafts 30. A further purpose served by the clutches is that they allow any one of the printing-blocks to remain stationary While the other blocks are in operation, the idle block or blocks for the time being resting on the pad or pads or being otherwise supported. While the preliminary inking aforesaid takes place the block may lie on the table.

To insure the better inking of the pads,

each roller may have a doctor or spreading' roller 35X, driven at a differential speed by spur-gearing SXX.

For securing the adjustments of the rod 3l we may introduce Washer 31X.

To facilitate the placing and removal ofthe printing-blocks, the machine may comprise an overhead track supported by angle-iron posts 36,' also a hoisting crab or pulleysheave 37, each block 32 having at each end a stud 38 for haulage purposes.

The fabric passes through the machine in the direction of the arrow. To adjust the tension of the bands 7, the axle of the drum 5 is mounted in adjustable bearings held in position by screw 39 and nut 40.

While preferring the arrangement of driving-gear herein described, we wish it to be understood that other means may be employed for imparting intermittent motion to the drums and fabric without departing from our invention.

For a single-color pattern one block only may be used, but a series may be used .and the fabric traversed accordingly, each block printing a blank until the full length upon the table is printed and the fabric then passing forward until a fresh length is on the table ready for printing; but our invention is more particularlyintended for multicolor printing, and

What we claim isg 1. In linoleum and like printing machines, a printing-table, means for supporting such table, a series of inking-pads with ink-ducts upon such table and with a space below each for the material to be printed upon to pass, a corresponding series of printing-blocks and -inking-rollers with means for carrying the rollers in a manner which permits them to roll over and ink the blocks; levers of equal lengths and parallel with each other carrying such blocks, means for axially su pportingthe levers and operating the same in such manner as to cause the blocks when moved in one direction to come in contact with the pads and when moved in the opposite direction to come in contact with the object to be printed, and means for allowing any of the blocks and levers to lie at rest while the others continue Working, as set forth.

2. In linoleum and like printing machines, a printing-table, means for supporting such table, a series of inking-pads with ink-ducts upon such table and with a space below each for the material to be printed upon to pass, a corresponding series of printing-blocks and inking-rollers with means for carrying the rollers in a manner which permits them to roll over and ink the blocks, levers of equal lengths and parallel with each other carrying such blocks, and means for axially supporting the'levers and operating the same in such a manner as to cause the blocks when moved inone direction to come in contact with the pads and when moved in thev opposite direction to come in contact with the object to be printed, means for allowing any of the blocks and levers to lie at rest while the others continue working, and mechanism for imparting an intermittent traverse of the material to be printed upon in sympathy with the move ments of the printing-blocks, as set forth.

3. In linoleum and like printingmachines,

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a printing-table, means for supporting such table, a series of inking-pads with a space below each for the material to be printed upon to pass, a pair of drums With notched peripheries and at the opposite ends of the printingtable, a pair of endless bands passing around the said drums, pins on the said bands with their points taking into the material to be printed and their heads taking into notches in the drums, and means for imparting an intermittent motion to the drums, as set forth.

4. In linoleurn and like printing machines, a printing-table, a pair of drums at opposite ends of the table and each drum having notches in its periphery, a pair of endless bands passing around the drums, pins on the bands with their points taking through the material to be printed and their heads taking into the notches, 'a driving-axle and a disk cam-wheel on such axle, a .lever-arm loose on D. N. BERTRAM. ROBERT MILNE.

Witnesses:

JOHN R. HENDERSON, ARCHD. C. COWPER.

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