US75130A - Abbot r - Google Patents

Description

A. R. DAVIS. CARDBOARD FOR'PRINTING.

No. 75,130. Patented Mar. 3, 186.8.

M411 1 r 2H fizifieues'. 1

ABBOT R. DAVIS, OF EAST CAMBRIDGE, MASSACHUSETTS.

Letters Patent No. 75,130, dated March 3, 1868.

CARD-BOARD FOR PRINTING.

the Stigmata new to in that fitters 3am: amt mating mt at the same.

TO ALL WHOM IT MAY CONCERN:

Be it known that I, Annor R. Davis, of East Cambridge, in the county of Middlesoir, and State of Massachusetts, have invented an Improved Card-Board for Printing, 850., of which the following is a full, clear, and exact description, reference-being had to the accompanying drawings, making part of this specification, in Which- Figure 1 is a plan of a card for printing, cut from a strip formed of two thin sheets of wood, with their grain running crosswise, a portion of the uppersheet being broken away, to exhibit the direction of the grain of the lower sheet. I

Figure 2 is a plan of the said card enamelled and printed upon.

Figure is a section on the line z a: of fig. 2, enlarged.

To furnish a printing-card of as good quality and at a less cost than the ordinary printing-pardof paperstock, &c., is'the object of my invention, which 'consists in a card for printing, cut from a strip formed by the union of thin sheets of wood, the grain of-.one sheet running across that of the other, and being'so closely united and condensed by pressure as to produce a smooth, hard surface, which is not liable to warp, twist, or break; and in conuection with the above, my invention also consists in enamelling the surface of a printing-card so made, inorder to give it a more ornamental and finished appearance.

.To enable others skilled in the art to understand and use myinvention, Iwill proceed todescribe the manner in which {have carried it out.

-I take slog of wood of any suitable description, and cut it by machinery into thin sheets or laminae, in a well known manner, after which they'may be bleached or not, as desired. I then paste two of these sheets together, the direction of the grain a a of the upper sheet crossing that, 6 b, of the lower sheet, (see fig. 1,) and submit them to heavy pressure, by passing them between rolls, thus dcstroyingthe rigidity and condensing the fibres and closely uniting the two sheets'together, so as to avoid any liability of bending, twisting, or breaking the strip, and leaving its upper and lower surface with a smooth, hard finish, suitable to print upon. The strip may now be cut up into cards of the required size. If a highly-polished or artificial surface is required, it is simply necessary-to apply an enamel of the required color, (see fig. 3,) in a manner similar to that put on to ordinary card-board.

I Cards made as above described, ready to be printed upon, may be furnished at about one-eighth the cost at: those made from the materials heretofore used for the same purpose.

I am aware that the surface ofa piece of wood for veneers has been previously printed on, and that wood has been enamelled' for a variety of purposes, and I am also aware that sheets ofwood united, with the grain of one running in a different direction to the grain of the other, have been employed in the manufacture of boxes and other articles, but to these features I lay no claim.

I claim subjecting the sheets of wood to severe pressure by rollers or otherwise, to r'educo the thickness of the wood, and to condense and unite the fibres, and thus prevent the card or card-board thus made from twisting, warping, and breaking, substantially as specified.

Witnesses:

N. W. Smears, P. E. Tnsonnmscnnn.

ABB'OT R. DAVIS.

Images