Improvements in Corner Staying Machines for Paper Boxes and the like.
Year: 1897

page_text: Date of Application, 30th July, 1897-Accepted, 4th Sept., 1897
COMPLETE SPECIFICATION.
Improvements in Corner Staying Machines for Paper Boxes and
the like.
I, PHILIP MIDDLETON JUSTICE of 55 and 56 Chancery Lane, in the County of
Middlesex, Fellow of the Chartered Institute of Patent Agents, do hereby declare the
nature of this invention (which has been communicated to me from abroad by
Horace Inman of Amsterdam in the State of New York, United States of America,
Manufacturer) and in what manner the same is to be perforined, to be particularly
described and ascertained in and by the following statement:-—.
This invention relates to improvements in corner staying machines employed in
making paper boxes and the like such improvements being applicable to various
forms of machines for doing this work.
The invention relates to improvements in the devices which apply the adhesive
material by which the stay strip or piece is attached to the corner of the box.
Heretofore it has been customary to apply the adhesive material to the strip itself, as
it was fed to the corner of the box and immediately prior to its application thereto;
in some cases, the strip of stay material had been previously treated with adhesive
substance, and, then instead of applying the adhesive material itself to the stay
immediately prior to its application to the box, water or some other liquid has been
applied, which had the effect of softening and rendering sticky the adhesive
material with which the stay strip had been previously treated. By the present
method, the adhesive material is applied, not to the stay strip, but to the corner
of the box, upon which the stay strip which is fed in a dry, non-adhesive
condition, is applied. This has several advantages, among them, the following;
the feeding of a stay strip which is made limp and sticky by the application of
paste thereto, or moisture, if the strip has been previously pasted, is more difficult
than to feed a dry, relatively stiff strip; also when a pasted strip is fed, the feeding
mechanism is apt to become gummed up or clogged by the paste, and has to be
It should be therefore
frequently cleaned to keep it in proper working order.
understood that a stay strip is sometimes used which has been treated with
adhesive material, such, for instance, as starch, for the purpose of stiffening it
and making it more easy of application by the machine, but when a stay strip
thus stiffened, is used, it is always in a dry condition, no moisture is applied to
it until it comes in contact with the adhesive material applied upon the corner
of the box; so that it has all the advantages of a dry, ungummed strip, and
none of its disadvantages.
By the present invention, the paste is first applied to the corner of the box,
the stay strip in a dry condition is then applied to the corner, cut off and
pressed down upon it, and then the devices which apply the adhesive material.to
the box, on their return movement, coat the exterior surface of the stay strip (which

page_text: at this time, is attached to the corner of the box) with adhesive material, and when
it becomes dry, it penetrates the fibre of the stay strip and greatly increases its
strength and the permanence of its attachment to the corner of the box.
Referring to the drawings hereof:
Figure 1 illustrates an endwise view of the parts of a box staying machine involved
in this invention.
Figure 2 illustrates a sidewise view looking in the direction of the arrow in
Figure 1.
Figure 3 illustrates a perspective of the glue box and rollers.
A is the reel for the stay strip; B is the arm supporting it; D is the box, which
in the ordinary construction contains the adhesive material, but in this present
instance is merely a support for the feed rollers D, D¹. E is a delivery plate and
coacting mechanism. F is the lower blade of the shears. G is the slideway; His
the slide which carries the grooved compression roller I. J is the bracket which
supports the anvil K upon which the lower die L is supported. These parts are or
may be of any preferred construction.
Referring now to the parts which constitute the present invention.
a is a glue box; it is open at its upper end, so that glue or other adhesive material
may be inserted. It is attached to the forward end of the slideway H by a plate b
which is attached to the back of the glue box and is rigidly held by a screw c¹ which
passes through a slot d in the plate b. This slot is provided so that vertical
adjustment may be had when required. The box is square excepting at the front
side where there is provided a diagonal extension e which is arranged at right angles
to a cut-off corner of the box. On the inside of the box there is a bracket. g which
supports a stud h near the forward end of which there is a sleeve or roller i held in
position by a screw which passes through the end of the roller and enters the stud
or shaft h. Upon the stud h, and above the roller or sleeve i there is another sleeve k
which serves to locate the roller ; this roller, as seen best in Figure 3, projects
beyond the inner surface of the projection e, through a slot made therein, and its
rear or lower side, as seen in Figure 3, fits closely against, in fact is practically in
contact with the edge of the slot at that side. At the opposite side, however, on the
upper side, as seen in Figure 3, the periphery of the roller is somewhat removed, say,
one-sixteenth to one-eighth of an inch from the side of the slot, so that the paste
which is within the box would flow therefrom very freely, were it not that a scraper
or stop device is provided in the following manner; is a piece of spring brass or
equivalent material at the forward or free end of which, a little plate m made at
right angles to the spring part is formed; the spring is attached as at n by a
screw, or soldered to the side of the paste box, and is provided with an
adjusting screw o which passes through the spring, so that the rectangular or
flange-like part m is adapted to press snugly against the side of the projecting
parte of the glue box. When the screw o is run in, the spring is compressed and
and the flange-like part m is brought into closer contact with the surface of the
roller, thus closing more or less of the slit between the roller and the side of the
box e and limiting the supply of the adhesive material. When the screw o is run
back, the reverse action takes place. q is another roller which is supported upon a
a bracket which is fastened to the side of the glue box a, and is adapted to revolve
upon a studs set in the end of the bracket and projecting to the interior of the
box a; the roller q likewise projects through a slot made in the angular end f of the
box a and is provided with a spring t provided with a rectangular part u and
set screw v, the same as before, by which the amount of adhesive material
which can be applied to the box of this roller q is adjusted the same as in the other
instances. The adjustment of the scraper plates m and u may be provided for
however in other ways.
The operation of the device is as follows:
The stay strip, in a perfectly dry condition, is fed from the reel A, through the
feed rollers D, D₁ in the usual manner. Upon each forward movement of the slideway
and the compression roller I, the glue rollers carried by the glue box or tank which

page_text: is properly adjusted vertically and laterally for the purpose, are brought in contact
with the diagonally presented corner of the box, and apply adhesive material thereto.
At the proper time, the stay strip is fed forward over the corner, the compression
roller I then presses the stay strip upon the corner, cutting it off at the same time,
and by the return movement of the slide way, the compression roller again presses
the stay strip firmly down upon the corner of the box, and the glue rollers apply a
second coating of adhesive material upon the outer surface of the stay pieces. This
concludes the staying of that corner. Another corner of the box is then presented to
the machine, and the operation is repeated.
It will be obvious to those who are familiar with this art, that modifications may
be made in the details of construction without departing from the essentials of the
invention; which is therefore not limited to such details.
Having now particularly described and ascertained the nature of this iuven-
tion and in what manner the same is to be performed, as communicated to me
from abroad by my foreign correspondent, I declare that what I claim is :-
1. A corner staying machine constructed and arranged to paste the corners of a box
or the like so that a dry strip of paper cloth or suitable material may be fastened down
on same.
2. In a corner staying machine, the combination of a support for the box, feeding
devices for the stay strip, devices to press the strip on the corner of the box, devices
to sever the strip and devices to apply adhesive material to the corner of the box, for
the purposes set forth.
3. In a corner staying machine, the combination of a support for the box, feeding
devices for the stay strip, devices to press the strip on the corner of the box, devices
to sever the strip, and means for applying adhesive material to both sides of the
corner of the box, for the purposes set forth.
4. In a corner staying machine, the combination of a support for the box, feeding
devices for the staying strip, devices to press the strip on the corner of the box, devices
to sever the strip, and devices for applying adhesive material to the corner of the box,
arranged in front of the said pressing devices, for the purposes set forth.
5. In a corner staying machine, the combination of a support for the box, feeding
devices for the stay strip, devices to press the strip on the corner of the box, devices
to sever the strip, and devices adapted to apply adhesive material to the corner of the
box prior to the application of the stay strip thereto, and subsequently to apply
adhesive material to the stay strip itself, for the purposes set forth.
6. In a corner staying machine, a receptacle for adhesive material carried by the
devices which apply pressure upon the stay strip, and reciprocating therewith, for the
purposes set forth.
7. In a corner staying machine, a reciprocating device adapted to apply adhesive
material to the corner of the box during its movement in one direction, and upon the
stay strips themselves during its movement in the reverse direction, for the purposes
set forth.
8. A corner staying machi e provided with a receptacle for containing adhesive
material provided with glue rollers arranged at substantially right angles to each other,
for the purposes set forth.
9. A device for applying adhesive material to a box or similar article, comprising
a hollow receptacle, means located partly within and partly outside of said receptacle,
for applying the adhesive material to the box, and adjustable scrapers to regulate the
supply of adhesive material, for the purposes set forth.
10. A device for applying adhesive material to the corners or boxes, comprising a
hollow receptacle, and means for applying the glue to the box supported within the
said receptacle and projecting beyond its outer surface, said means arranged to apply
the adhesive material on both sides of the corner, for the purposes set forth.
11. A device for applying adhesive material to the corners of boxes, comprising a
hollow receptacle, means supported within the said receptacle and projecting beyond

page_text: its outer surface for applying the adhesive material on both sides of the corner of
the box, and an adjustable scraper for each of the said rollers, for the purposes set
forth.