Improvements in Machines for Scoring Paper-board and the like.
Year: 1894

page_text: Date of Application. 23rd Oct., 1894-Accepted, 24th Nov., 1894
COMPLETE SPECIFICATION.
Improvements in Machines for Scoring Paper-board and the like.
I, CHAUNCEY WOLCOTT GAY of Elm Street, in the Town of West
pringfield, in the County of Hampden, and State of Massachusetts, United
States of America, Machinist, do hereby declare the nature of this invention and
a what manner the same is to be performed to be particularly described and
scertained in and by the following statement :-
This invention relates to improvements in machines for scoring sheets of paper
board, or similar board from which paper boxes are made.
The object of the invention is to produce a mechanism by which the scoring may be
produced with as great, or greater, rapidity than heretofore and one by which the
stock may be excavated and cleared out of, and away from, the scoring groove with
greater effectiveness and rapidity than heretofore. Another object of the invention
is to adapt the mechanism by simple means to be readily adjusted to accord with
different thicknesses of paper and to produce scoring grooves of varying depths.
The invention consists in constructions and combinations of parts all substantially
as will hereinafter fully appear and be set forth in the claims.
Reference is to be had to the accompanying drawings, in which,-
Figure 1 is a sectional elevation of a scoring machine taken from front to rear
and showing a sheet of paper-board being fed therethrough and acted upon by the
scoring and clearing devices.
Figure 2 is a perspective view of a fragment of paper-board showing the same
as scored and partially cleared.
Figure 3 is a view on a larger scale than Figure 1 in vertical section through
the improved devices.
Figure 4 is an elevation at right angles to Figure 3, showing the said devices in
edge view.
:
Figure 5 is a vertical sectional view of the shoe and clearer, its relative position
to the scoring wheel being indicated.
Figure 6 is a plan view of the same.
Figure 7 is an edge view, and
Figure 8 a perspective view of the shoe.
Figure 9 is a perspective view of the clearing blade, and
Figure 10 is a perspective view of a secondary clearer or "doctor."
In the drawings, A represents the holder shown as removably and adjustably
secured to the beam, B, of the scoring machine above the support and guide-
roll, C.
The rail and roll are properly supported by the standard of the machine and the
usual table, D, is provided.
The holder has mounted thereon the hanger, G, which comprises two angular
members, one of which has substantially a pivotal connection with the holder, as
O at a, and the other, by means of the screw-shaft, b, has such a support from the
hanger as to permit the adjustment of the hanger in slight extents towards and
from the top side of the roll.
The hanger carries, at the junction of its members, the journal screw, or stud, d,
on which the scoring wheel, H, is axially carried.

page_text: The scoring wheel consists of a steel disk having two flanges, 10, 10, extended
beyond the periphery and separated corresponding to the width of the required
score line, the inner faces of which are parallel, while these flanges are outwardly
bevelled as at 12, so that they are made to constitute rotary scoring knives.
Upon the upwardly and forwardly extended member, f, of the hanger is secured
the shoe, J.
This important part is fully and clearly illustrated in several views of the
drawings and consists of the upwardly and forwardly inclined stock, or shank-
bar, 9, with the bifurcated foot-part, ½, which is rearwardly extended and then
upwardly rounded, as at h³, and which has the heel, i, which constitutes a tie-piece
for the two members of the foot.
. The bottom of the foot, comprising the heel, is curved to conform to the periphery
of the roll, C, and the shoe is held by the screws, n, n, upon the hanger so that
said curved bottom will stand above the top of roll, C, at a distance approximately
corresponding to the thickness of the paper to be fed through between the foot and
roll to be scored and excavated.
By reason of the slots, k, k, in the shank-bar of the shoe, the latter may be
adjusted towards and from the surface of the roll, C.
A hole,, is bored through the heel, i, for the reception of the rod, j, the inner
edge of which (that protrudes within the aperture between the members of the
bifurcated foot and extends below the adjacent bottom surface of the foot,) is ground
chisel-like to constitute an excavator, or clearer blade, the width of which is
approximately the same ag that between the inner faces of the scoring
flanges, 10, 10.
The projection of the blade and of the clearer below the under surface of the
shoe is approximately the same as the required depth of the scoring groove. The
clearer blade is held by the transversely applied set screw,
The above described shoe which has a considerable portion of its bottom of a
contour corresponding to, and yet slightly removed from, the periphery of the
support and guide-roller, C, serves to prevent the travelling stock from rising or
being lifted above the top of said roll to consequently prevent a too deep, or uneven
excavation between the parallel incisions made by the scoring wheel.
Upon the outer face of the shank-bar of the shoe is set the blade, m, with the
narrowed and chisel edged extremity which enters the groove at the periphery of
the scoring wheel, this part serving as a "doctor" for the scoring wheel to free the
wheel from any cutting which may be retained within its channel edge.
This doctor blade, m, has the slot, m³, in its shank so that it is adjustable towards
and from the periphery of the scoring wheel, and it moreover may be held by the
heads of the same screws, n, n, which confine the shoe to the hanger.
It will be here explained that by reason of the parallel faced circular scoring
blade flanges on the wheel, H, such scoring wheel will not only score the stock in
close parallel lines, but will carry out the waste strip on occasions when certain
kinds of paper-board are worked upon, and then it becomes the function of the
doctor-blade, m, to clear the scoring wheel.
In some stock having a more tenacious fibre, the wheel may not be depended
upon to carry up the waste strip or shaving and then the clearer blade does it.
The clearer blade ensures, in any event, the excavation between the scores,
uniformly, to the proper depth.
It will be noticed that the aperture creating the separation between the members
of the foot so extends as to leave an opening at the front of the shoe between the
non-apertured shank-bar and the heel, whereby the waste cleared by either of
the blades,jor m, may issue forwardly and be received into the rearwardly opening
receptacle, L, which has a concaved bottom and front. By this means none of the
cleared strips, or particles, will be permitted to fall back upon the board, or into
the grooves thereof to be found objectionable later in the process of utilizing
blanks of the paper-board for making boxes by hand or machinery, or for other
purposes.
1

page_text: Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim, is-
1. In a scoring machine, the combination with the double-edged scoring wheel,
of a shoe supported in proximity thereto, to bear upon the paper substantially as
described, and having its foot bifurcated so as to lie at either side of the scoring
wheel and having the heel, i, transversely uniting the bifurcated members of the
foot and having the socket, 2, and the clearer-blade, j, set in and extended from
said socket augularly to the under surface of the foot, substantially as described.
2. In a scoring machine, the combination with a shoe, substantially as described
having the upwardly extended bar-shauk, g, the foot which is bifurcated forming
the two members with the curved under surface and the rearwardly upturned
toes, h³, h³, and the transverse uniting heel, i, substantially as described and shown.
3. In a scoring machine, the combination with a hanger, G, and double-edged
scoring wheel mounted thereon, of the shoe, J, having the bar-shank, g, provided
with the slots, k, k, and having the bifurcated foot substantially as described, and
the doctor-blade, m, having the slot in its shank, m³, and the screw, n, n, for
adjustably holding the shoe to the hanger, and the doctor-blade to the shoe,
substantially as described.
4. In a scoring machine, the combination with the double-edged scoring wheel,
of a shoe mounted near, and in advance of, the wheel and formed with an aperture
therethrough from front to rear, one or more clearers supported within this aperture
for clearing and directing the waste stock which is excavated 'from the scored
board forwardly through the throat formed by said aperture in the shoe, and a
receptacle in advance of the wheel and clearer for receiving such waste, substantially
.as described.
5. In a scoring machine, the combination with the roll, C, and the scoring wheel,
of a shoe above the support roll adjustably mounted independently of the scoring
wheel, and having portions which are adapted to lie closely to the paper-board, and
a clearer-blade supported by the shoe and having its working edge extended below
plane parallel with
the lower surface of the shoe, and arranged in advance, and in a
the rotation, of the scoring-wheel and between the circular knife edges thereof,
substantially as described.
6. In a scoring machine, the combination with a supporting and guiding roll, C,
the double-edged scoring wheel, and a hanger on which said wheel is adjustably
mounted, of a shoe adjustably supported on the hanger independently of the wheel
to be moved from and towards the roll, C, and having foot portions which are
adapted to lie closely to the paper-board and having the clearer-blade, j, adjustably
supported thereon and the doctor-blade, m, which is adjustable longitudinally of its
length, substantially as described.
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