IMPROVEMENTS IN PROCESSES FOR SECURING OUTLINE FIGURE PLATES OR PINS TO THE BODY OF PRINTING ROLLS IN THE MANUFACTURE OF THE ROLLS.”
Year: 1876

page_text: "
LETTERS PATENT to Jacob Jones Janeway, of the City of New Brunswick, in
the State of New Jersey, United States of America, Manufacturer of Wall
Paperings, for the Invention of IMPROVEMENTS IN PROCESSES FOR SECURING
OUTLINE FIGURE PLATES OR PINS TO THE BODY OF PRINTING ROLLS IN THE
MANUFACTURE OF THE ROLLS.”
COMPLETE SPECIFICATION filed by the said Jacob Jones Janeway at the
Office of the Commissioners of Patents on the 19th June 1876.
JACOB JONES JANEWAY, of the City of New Brunswick, in the State of New
Jersey, United States of America, Manufacturer of Wall Paperings. "IMPROVE-
MENTS IN PROCESSES FOR SECURING OUTLINE FIGURE PLATES OR PINS TO THE BODY
OF PRINTING ROLLS IN THe ManufactURE OF THE ROLLS."
This Invention relates to the manufacture of printing rolls for paper hangings
or other purposes, and has for its object, first, an effective, cheap, simple, and
durable method of securing the outline plates or pins which form the figure to the
body of the roll; and, second, the production of a printing roll, the outline plates
or pins of which are secured to the body by molten material flowed around or
through perforations in them and then allowed to harden on the roll, rigidly and
unfailingly securing the plates or pins in proper position. To which ends it con-
sists, first, in the process of securing outline plates or pins to the body of printing
rolls, herein-after described, by coating the roll with wax, driving the plates into
the wax, coating the whole with waterproof varnish, encasing the roll thus prepared
in a cage, filling the cage with plaster of Paris and allowing the same to harden,
melting out the wax by heat, and flowing molten material into the annular space
made vacant by the melting of the wax, all substantially in the manner shown'and
described; and, second, in a printing roll, to the body of which are fixed outline
plates or pins, having in their bases dovetail notches or perforations, which being
imbedded in the molten metal coating said body secure the plates or pins in place
on the roll, substantially as herein-after described.
In the accompanying Drawings,
Figure 1 is a transverse sectional elevation of my roll in process of securing the
outline plates or pins at the stage of melting out of the wax.

page_text: Figure 2, a side elevation of my roll at the stage when the plates or pins have
been set up in the wax, the upper section of the flask being removed.
Figure 3, an enlarged side elevation of a convenient form of outline plate.
Figure 4, a side elevation of the finished roll; and Figure 5, a longitudinal
sectional elevation of the same.
For the better information of the public I will proceed to describe my Invention
in detail:-A shaft or shell of any metal or alloy, but preferably of iron, perforated
at different points with holes, is first taken and surrounded or wrapped with a
layer of beeswax, or beeswax mixed with rosin, or of cerin, or spermaceti, or of any
substance of analogous nature and kindred properties, the layer being previously
cast or otherwise prepared, and when upon the shaft or shell, dressed off by planing
or turning the outline plates or pins, which are formed of brass or other material,
perforated or nitched if desired, as shown in Figure 3, or not so perforated or
nitched, are then pressed or driven to any required depth into the wax, which by
its cohesion holds them firmly in place. The roll thus prepared is then completely
varnished with collodion or shellac dissolved in alcohol or copal, or any other
waterproof varnish or fluid, and the same allowed to set and thoroughly dry. The
roll is then encased in a perforated cast iron, or other flask, cage, or mould, made
for convenience in sections, and the entire flask then completely packed full of and
the prepared roll covered up by a mixture of plaster of Paris, or the same mixed
with asbestos, asphalt, kaolin, or of clay, or other suitable material, which is
allowed to become hard, the moisture from the same in drying exuding through the
perforations in the flask.
When these preliminary stages have been gone through with, heat is applied by
steam pipe, hot iron, or other means, to the interior of the roll, serving to melt
the wax and permit its escape in a melted state through the perforations in the
body of the roll.
After the wax has been completely run out, it will be readily comprehended that
in its place is left a hollow annular space around the roll, the free extent and
continuity of which is broken only by the inner or nitched portions of the outline
plates before embedded in the wax, their outer portions being now embedded and
held fast in the same position in the plaster, which is now again thoroughly dried
and heated through, and into the annular space is then poured molten type, metal,
lead, or other metal or alloy, or sulphur, or glass, or like material, through the
perforations in the roll or through any opening in the plaster, which flowing in
completely fills up once more the space left open by the flowing out of the wax,
spreads from plate to plate through the notches in the same, or underneath the
plates when there are no notches and the plates are not driven entirely home, and
forms when hardened a casting so to speak upon the roll, in which are embedded
in their proper position and relation the outline plates or pins. The flask is
now taken apart and the plaster broken away when the roll is finished and ready
for use.
In the Drawings, B represents the body of the roll A; A¹, the flask; H, the
perforations in the same; C, the bolts connecting it; D, the outline plates; K, an
outline pin; I, the notches in the pin; G, the perforations in the roll; E, the layer
of wax, shown in Figure 1, flowing out under a supposed application of heat; F, the
plaster of Paris; and E¹, the hardened lead in the finished roll.
The chief advantages are the simplicity, cheapness, and accuracy of my process,
and the lightness, saving wear in the journals, and durability of my roll.
In witness whereof, I, the said Jacob Jones Janeway, have, hereunto set my
band and gool this First day of June 1876.
JACOB JONES JANEWAY. (L.S.)
Attest,
J. BONSALL TAYLOR.