US331769A - oompton - Google Patents

Description

2 SheetsSheet 1.

(No Model.)

W. A. COMPTON.

WOOD EMBOSSING MACHINE.

No. 331,769. Patented'Dec. ,8, 1885.

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XVILLIAM A. COMPTON, OF LIBERTY CORNER, NEXV JERSEY.

WOOD-EMBOS SPECIFICATION forming part of Letters SING MACHINE.

Patent No. 331,769, dated December 8, 1885.

Application filed February 16,1885. Serial No. 156,033. (No model.)

To all whom it may concern.-

Be it known that I, \VILLLUI A. COMPTON, a citizen of the United States, residing at Liberty Corner, Somerset county, New Jersey, have invented certain new and useful Improve ments in Parallel \Vooddnmbossing Machines, fully described and represented in the following specification and the accompanying drawings, forming a part of the. same.

This invention consists in the combination and arrangement of two rotary cutters or disks operated to sever the fibers of the wood in parallel lines and an embossing-roller ar ranged and operated to impress the entire surface of the wood between such parallel lines. Heretofore irregular figures have been embossed upon the wood by first impressing a cutting-edge into the wood around the margin of such figures, the cutters being affixed to the embossingroller, as in my application No. 143,027, or applied to the wood by means of a separate roller, as in United States Patent No. 299,98-L In either case great expense is incurred in forming such cutters and fitting them upon the convex surface of the rollers, and in the latter case the roll bearing the cutters must be rotated in exact unison with the roll for depressing the irregular figures; and the object of this invention is to ornament the surface of the wood with strips of parallel depressed or ornamented surface, and to avoid the expense and difficulty of embossing the surface only partly with figures.

B Y in Y invention a stri of uniforml r en1- bossed or ornamented surface may he produced in the middle of such narrow boards as are used for wainscoting and trimming, with an exceedingly simple and inexpensive apparatus and without any appreciable expense, as the tools are easily kept in order, and the wood may be run through the machine with greatrapidity.

The nature of the mechanism is shown in the annexed drawings, Figure 1 being merely an illustrative diagram showing the tools in operation, the means for. supporting and adj ust-ing the same being omittedfroni the-drawings, as they are already well known in the art. Fig. 2 is a plan of the bed employed beneath the cinbossing-roll to support the material acted upon, and showing a board partially embossed by the tools. Fig. 3 is an end view of such bed at the end adjacent to the rotary disks, with a board in section beneath the disks. Fig. 4 is an elevation of the embossingroller with a section of the board beneath it. Fig. 5 is a section of the board when finished. Fig. 6 is a plan of the same. Fig. 7 is a perspective section of the embossed surface, and Fig. 8 is an alternative form for the cutting-disk; and Fig. 9, a roll with disks attached, and Fig. 10 a board embossed thereby.

In Figs. 3 and 9 the enibossingroller and rotary cutters arecoinbined 0n the same arbor, but are shown as constructed separately in Figs. 1 and 5.

A is the embossing-roller; B, the rotary disks; A and B, the arbors for the same when separate; O, the bed; and D are gages applied to the bed to guide the board in the proper path beneath the tools. E is the board; F, the parallel cuts made by the rotary disks, and G the surface depressed and ornamented between such cuts. It R are pressure-rolls mounted beneath the board E, the same being combined with the supporting-bed O in any desired manner. 1 is a driving-pulley attached to the arbor A, and is rotated by any convenient means in the direction of the arrow 1) to propel the boards through the ma chine in contact with the rolls R- It. The roller A and disks B are set to penetrate the wood to the desired degree, and the boards, being fed continuously into the machine, are guided by the gages D in the required path beneath the tools A and B, and are embossed with great rapidity.

In my invention the ornamentation by enibossing is limited entirelyto fine patterns with very slight reliefsuch as are shown in the perspective section of the embossed sur' face in Fig. 7as such ornamentation can be impressed upon the wood without any danger of rupturing the depressed fibers, and therefore without the application of cutting-edges to the outline of the figures. The entire surface of the roll Ais therefore ornamented with some uniform slightly-raised figure which is adapted for impression upon the wood-without the prior application of any cutting-edges,

the use of such cutters being thereby restricted to the parallel edges of the depressed surface shown at F F, on a line with the disks B.

I In Fig. 2 the disks are beveled on the inner side only. so as to form a vertical edge to the depressed surface, as in Fig. 5. The edges of the disks are shown in Fig. 3 as beveled in both directions, so as to impress a V-shaped groove in the wood, the sharp edges of the disk serving to gradually and smoothly sever the fibers as it enters them, the operation being plainly illustrated at Z in Fig. 1. Such V-groove affords a slight clearance for the ends of the embossing-roller,as shown at m in Fig. 4.

In Fig. 6 the depressed surface G between the grooved lines F is very plainly shown, the path of the roller exactly corresponding with and filling the space between such, lines, so that the ends of the roller depress only the fibers already severed,and are notoperated to depress any fibers that have a solid connection with others adjoining to them.

The sharp-edged disk shown in Figs. 3 and 4 obviously operates without removingany of the wood; but as its function is merely to sever the fibers adjacent to the ends of the embossing-roll it is plain that revolving toothed cutters-such as are shown in Fig. 8--mightbe used, or that straight inclined blades might be substituted therefor. I have therefore shown such inclined blades in dotted lines n in Fig. 1, the same being represented as held in the bar a by a set-screw, o. The disks Bare shown. adjustable upon the arbor B by means of set: screws 'i,applied to their hubs j, andthe blades 1?. can also be made adjustable upon a holdingbar in any suit-able manner, as by ,clamping them thereon. v

In Fig. 8 the toothed cutter shown is of the. same kind as the disks B, but formed with, large notches adapted to form four teethor.

independently of the roller A ,at a high rate of speed in a direction contrary to the motion of the board, to cut a smooth groove therein, while the plain disks (shown in Figs. 2 and 3) require no driving mechanism,but operate to cut the fibers in the required manner when the board is propelled beneath them. by the rotation of the roller A. Feed-rollers may be employed to carry the. wood into the machine, as indicated by the. dotted circles at H in Fig. 1; but such rolls would, require to be connected with the embossing roll by positive gearing to make. them both run at the same surface-speed,and I do not find that such feed-rolls arenecessary in practice, but that the drivingmechanism can be restricted entirely to the roll A. It is also evident that the driving mechanism may, be restricted entirely to the feed-rollers H, and a that in such case the cutters and embossing roll would be rotated by contact with .the moving board, the same effects being producedas in the embossed roll with the driving agent.

Figs. 9 and 10 show aslight modification of my invention, in which the parallel lines at the edge of the depressed surface may be scalloped, waved, zigzag, or indented with any desired outline. To effect such a result, the cutters require to be attached to the embossing-roller, the same as shown in Fig. 3, Fig. 9 showing waved cutters adapted to form wavy parallel outlines to the depressed surface, which latter is shown in Fig. 10. In this construction the embossing-surface of the roll is extended into contact with the cutter at all points, thus operating, when pressed upon the wood, to emboss and depress the entire surface between the waved lines without any rupture of the fibers at the indented margin of such ornamented surface. It is plain that this result could not be obtained by operating the cutters upon a separate arbor without gearing the roll andcutters together and carefully adjustingthe roll so that it would operate acfcurately within the scalloped or indented outline.

. .7 The separate cutters shown in Fig. 2,being movable upon their arbor, may be set to and from one another and clamped in their re- .quired positions by set-screws i, and the same cutters may therefore be adapted to produce the parallel cuts or grooves at different distances apart to cooperate with embossing-rolls of greater or less length. It is also obvious ,thatany number of. cutters may be employed simultaneously, and rolls of suitable width be applied between the alternate pairs of grooves,

and thesurface of the board he thus ornamented witha series of depressed strips. In

allsuch. casesthe ornamentation is evidently in parallel lines, by which I do not mean straight, lines, but continuous cutting -lines lwhose variations from oneanother recur continuously-by reason of the rotation of the cuttingdisks, and which continuous recurrence produces uniformityiin the width of the decutting-faces, and would require tobe driven.

pressed strip at regularlyrecurring intervals.

Asmooth :polished surface may be producedint-he surface of the depressed strip by employing a polished roll in the place of one having embossed figures formed thereon, and

,as such smooth and compressed surface forms an agreeable contrast with the higher level of the wood,- by its sides, I claim such smoothly-depressed.strips equally with those thatareuniformly embossed, and have there- .fore shown sucha smooth roller and plain depressed surface in Fig. 1, while the other figures of the drawings show the roll and depressed strip with the diamond-shaped pattern, .whichis illustrated upon a larger scale while their disposition in opposite directions in, the alternate diamonds forms a very agreeable contrast to the eye. Designs of such low relief are particularly adapted for embossing the depressed strips G, and any pattern in which such low relief is employed should I therefore be used to ornament the strips. The depressed strip may also be burnished or even scorched toa darker tint than the surface above it by feeding the boards slowly through the machine, as by feed-rolls H, and rapidly rotating a polished metal roller like that shown at A in Fig. 2.

The class of ornamentation required for my embossing-rollers can be readily produced by knurling the entire surface of a metallic roll with a suitable knurling-wheel, thus engraving the roll very cheaply and neatly, and greatly reducing the cost of preparing the same for practicing my invention.

From the above description it will be seen that my invention differs from any in which the surface is only partially embossed, as in such case the outlines of the embossed figures mustbe cut to prevent the rupturing of the marginal fibers, and that in such cases the cutting must be done across the fibers of the wood in every direction with curved cutters, which are very expensive and difiicultto keep in order. In my invention, on the contrary, no cutting-lines are required around a closed figure or around any isolated and depressed portion of the surface; but such cutting-lines are avoided in my invention by depressing the entire surface of the wood in a parallel band orstrip, the opposite margins of which are the only parts that require the operation of cutting-edges to prepare them for the action of the embossing-roller.

My invention also differs from that allowed to me in patent application No. 299,994, in that the cutters shown herein form a continuous cutting-edge, as around the periphery of a disk, instead of surrounding an inclosed area which is to be separately depressed; and my present cutters, therefore, are only adapted to form continuous parallel cuts in the surface of the wood.

I have not in my present application claimed the wood embossed in the manner herein described, but have filed a separate patent ap plication, No. 156,032, of even date herewith, for such embossed wood as a new article of manufacture.

I am aware that rollers for embossing the entire surface passed over bysaid rollers have been used, as in United States Patent-s Nos. 158,952 and 266,763, and also that cutters have been used in combination with such rollers, as in United States Patents Nos. 152,627 and 157,815. In the latter patents the cuttors are employed, in connection with the roller in a machine for scalloping leather straps, simply to trim the edges of the strap at even distance from the edge of the scallop throughout its whole length. In my inventionthe cutters do not cut off and remove any part of the material, but their function is to sever the fibers of the wood at the line between the elevated surface and that to be depressed, so that when the depression is made by the roller no rough edge will be formed, as is the case where no cutting-edges are employed to perform such function. My invention differs from the former patents, in that it consists in the combination, with the embossing-rollers, of the cuttingedges herein shown and described, which combination is not employed in said patents. I therefore disclaim the above constructions, limiting myself to the combinations herein specifically set forth.

Vhat I claim is 1. The combination,in an organized machine for embossing wood, of an embossing-roller provided with a continuous annular pattern,

means for applying and pressing the same.

upon the wood, and two cutters arranged and operated in relation to the edges of the annular embossing-pattern to sever the fibers of the wood to a given depth in parallel lines at such edges, the whole being arranged and operated for the roller to depress the entire surface of the wood between such parallel cuts, and the cutters thus operating to separate continuously, by a clean cut, the depressed strips from the undepressed portion of the wood at the opposite edges thereof, substantially as shown and described.

2. The combinatiomin an organized machine, of a woodembossing roll constructed with a continuous annular pattern unprovided with cutting-edges upon its surface, and cutters affixed to its ends and adapted to cut the woody fibers to the depth of the intended depression in indented parallel lines, the embossing-rollcr being operated as described, for the continuous annular pattern to impress the entire surface of the wood between such indented parallel lines, substantially as and for the purpose set forth.

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

.VILLIAM A. COMPTON.

Witnesses:

THos. S. CRANE, HENRY J. THEBERATII.

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