US657807A - Mold for casting wall-paper-printing rollers. - Google Patents

Description

No. 657,807. Patnted Sept. I900. E. c. BAECK. MOLD FOR CASTING WALL PAPER PRINTING ROLLERS.

(Application filed Apr. 16, 1900.) (No Model.)

WV W W M WWW/W WWW d I WITNESSES. //v VENTOR Eugene CBaeck.

A TTOHNEYS rrED STATES PATENT OEErcE.

EUGENE o. EAEcK, OF HASTINGS, NEW YORK;

More FOR CASTING WALL-PAPER-PRINTING ROLLERS.

SPECIFICATION forming part of Letters Patent No. 657,807, dated September 11, 1900.

Application filed April 16, 1900. Serial No. 13,079. (No model.)

To (tZZ whom it may concern:

Be it known that I, EUGENE O. BAECK, a

citizen of the United States and a resident of Hastings, in the county of Westchester and State of New York, have invented new and useful Improvements in Molds for Casting W all-Paper-Printing Rollers, of which the following is a full, clear, and exact description.

This invention relates to a mold which is adapted especially for the formation of Wallpaper-printing rollers. Ordinarily these rollers are formed of Wood, into the surface of which are driven a number of brass platesdisposed edgewise to constitute the outlines of the design for which the roller is formed, and within these outlines pieces of felt are pressed to form the printing-surfaces. This work is exceedingly tedious and difficult and so expensive as to materially hamper the wall-paper industry.

The object of my invention is to provide means by which the design may be conveniently and accurately impressed upon a mass of pliable material, which may be, for example, rubber or soft metal, and this mass of material subsequently rolled around the printing-roller and fastened thereto.

In attaining this end I provide a suitable frame or holder in which are contained and properly held a number of needles of varying shape and size, according to the work to be performed. These needles are arranged to move independently on their axial lines. The heads or upper ends of the needles are arranged to lie normally in the same plane, thus presenting a smooth surface on which the design may be traced, and for facilitating this tracing operation the needles maybe given a coating of chalk or other similar material on which the lines of the design may be marked. Then by pressing down all of the needles which occur within the outlines of the design a mold is formed. in which the material may be molded, thereby to reproduce the design. The metal or other pliable material on which the design is reproduced may then be rolled off and fastened to the roller, and the formation of the printing-roller will then be complete. It is obvious that by this device the previously difficult and expensive task of employed for each line of needles. I dles are formed with slots 17 therein, in which forming the rollers is rendered easy and inexpensive.

This specification is the disclosure of one form of the invention, while the claims define the actual scope thereof.

Reference is to be had to the accompanying drawings, forminga part of this specification, in which similar characters of reference indicate corresponding. parts in all the views.

Figure 1 is a plan view of the mold. Fig. 2 is a sectional view thereof. Fig. 3 is a similar view showing the mold in operation and illustrating the material which is cast therein, and Fig. 4 is a fragmentary perspective view showing one of the arrangements by 5 which the needles may be mounted.

According to the form of the invention which I have here shown the letter a indicates the frame, and b the needles. It is clear that this frame may be of any desired form and size, according to the work in hand, and

the needles also may be constructed fine or coarse. I have here shown the needles with their bodies square in cross-section. This is the form which I consider best adapted to large work and especially advantageous in the production of tapestry eifects, as will be described hereinafter. In the production of fine work the needles may be constructed with great minuteness and held in the frame in any desired manner. For holding the needles in the frame to move in the requisite manner I have here shown a number of strips 0 of metal, preferably brass. These strips are arranged in parallelism, and one strip is The neethe strips are received, such slots being of approximately twice the length of the width of the strip, so that the needles may move, as indicated in Fig. 3. Idesire it distinctly understood that I am not limited to this manner of mounting the needles. I have simply shown it as one of the many arrangements possible.

at represents the mass of metal or other suitable material which is cast in the device constituting my invention, and it will be clear that, the normal position of the parts being that shown in Fig. 2, when certain of the needles are pushed down, as shown in Fig. 3, a mold is formed by which the desired design may be accurately reproduced. The needles are held friction-tight in the frame, so that they will stay in the position in which they are placed.

In making a wall-paper-printing roller according to my invention the needles are all moved up to the position shown in Fig. 2, in which their upper ends present a plane unbroken surface. This surface may now be coated with chalk or any other material which will receive a clear impression from a pencil or the like, and then the design should be traced over the heads of the needles. This done the operator has only to push down the needles which come within the outlines of the design and the mold is then ready for use. ably formed of a length just twice equal to the width of the strip a, so that the movement of the needles on the strips may be rendered uniform and also so that this movement may be regulated to regulate the depth of the relief given to the material molded. Of course the length of the slots may be varied if it is desired to shorten or lengthen the movement of the needles, and it will also be understood that the elements 0 are not necessarily in the 1 form of strips, but wires or other like devices may be substituted. I prefer the strips, however, since they provide a comparatively-unyielding carrier for the needles and likewise a gage to their movements. When the needles are constructed comparatively minute,

strips 0 may be omitted and the needles held friction-tight in the frame, or they may be held by other means, as will suggest themselves to a skilled mechanic.

It is clear that the mold may be used with any material which is known to be workable in molds, and it is also clear that designs of any sort may be executed. When using the square needles, as shown in the drawings, the mold is adapted easily to tapestry effects. This work is the most diflicult of all in the wall-paper art; but by means of my invention it is rendered most simple, since by forming the needles comparatively large in cross-section and giving them the square shape shown the angular outlines of tapestry may be clearly produced. It will also be apparent that the mold may be used for Work other than producing wall-paper rollers, its utility extending to all branches of the molding art. I have used the term needles to define the elements 1) in this case, since I regard it as most expressive of them. It will be observed, how'- ever, that in the strict sense these elements do not serve to pierce material, and, broadly,

The slots 6 in the needles are prefer- I they are simply small rods or bars forming independently-movable sections of the mold.

If desired, a body d of cork, felt, clay, or the like may be placed below the needles, (see Fig. 3,) so asto resist the movement of the needles and prevent movement except when pressure is positively applied thereto.

Having thus described my invention, I claim as new and desire to secure by Letters Patent-- 1. A mold having a frame, a number of needles mounted therein and arranged in parallel lines, the needles being formed with slots therein, and strips or the like held in the frame and passed through the slots, whereby the needles are mounted to have limited move= ment on such strips, for the purpose specified.

2. A mold, comprising an open frame, a plurality of needles arranged side by side in the frame, said needles being of approximatelyequal lengths, and having their ends at each j side of the frame normally lying in the same plane, the upper ends of the needles forming a smooth flat surface on which a design may be traced, and means for holding the needles to move independently on their longitudinal axes, substantially as described.

3. A mold, comprising an open frame, a plu- 1 rality of needles,an,d means for independently and movably mounting the needles in the frame, said needles being approximately of the same length and having their ends at each side of the frame normally lying in the same plane, as and for the purpose set forth. so as to adapt the mold to very fine Work, the l rality of needles,and means forindependently 4. A mold, comprising an open frame, a pluand movably mounting the needles in the frame, said needles being approximately of the same length and having their ends, at each side of the frame, normally lying in the same plane, in combination with a body of soft material arranged below one end of the needles, as specified.

5. A mold, comprising an open frame, a plurality of needles having one end pointed and independently and movably mounted in the frame, said needles being approximately of the same length and having their ends at each side of the frame, normallylyingin the same plane, in combination with a body of soft material arranged below the pointed ends of the needles, substantially as described.

In testimony whereof I have signed my name A to this specification in the presence of two subscribing Witnesses.

EUGENE O. BAECK.

Witnesses:

F. N. HANAFORD, EVERARD BoLToN MARSHALL.

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