Year: 1898

page_text: I, NATHANIEL BOTT CHADWICK, of 64, Bramall Lane, Stockport, Cheshire,
Engineer, do hereby declare the nature of this invention to be as follows:-
My invention relates to improvements in what are known as box covering
machines for applying at one operation one or more covering strips of paper,
cloth, or other material to a paper or other box or lid. In such a machine the
box or lid to be covered is placed on a suitably shaped "form" secured adjustably
on a shaft driven by the machine and the strip of paper covering the box and
lid is cut off at the proper point by knives actuated by a rod which connects
one of the knives with the cam which gives the motion at the right time and
which connecting rod has to be adjusted in length to every varying size of box
which adjustment is a difficult matter to get exactly right so as to get the lever
to actuate the cut off knives always at the same strength.
In these machines also the strips of paper or other material which are placed
on the machine cannot easily be moved sideways to get them in a line with the
box being covered and it is necessary for the operator to stop the machine to
adjust the strips and move them to the position required on the glue roller.
The object of my improvements is to overcome these defects and I accomplish
it in the following manner. In place of the connecting rod which requires to
be adjusted in length between the cam and the cut off to each size of box I
put the cam which actuates the cut off on a shaft working at right angles with
the form shaft and driven from the said form shaft by bevil wheels and which
shaft is either made square or round with a key or keyway running its whole
length in such a way that the actuating cam can slide along to any part of the
shaft as the knives are moved higher or lower and at any point have the same
effect on the cut off knife without the intervention of a connecting rod. Another
way, is, instead of connecting the cam shaft by bevil wheels to the cutter shaft
to have a cam on the form shaft and a stud to work against it on the cutter
shaft which cutter shaft will then have a backward & forward motion at each
revolution of the form shaft and the said cut off shaft having a boss running along
it having a square hole or round hole and keyway and the said boss being con-
nected with the cut off knife by a short link will give the required motion without
a connecting rod which has to be adjusted to different lengths as by the existing
methods and exactly as described in my first arrangement also I fix the brackets
holding the reels of paper on the glue box and the glue box on the frame of the
machine in such a way that the operator by means of a rack and pinion or other-
wise can move the said glue box (and also with it the paper) sideways whenever
required to adjust the paper in a line with the box or lid being operated on.
Dated this 24th day of October 1898.

page_text: Improvements in Box Covering Machines,
I, NATHANIEL BOTT CHADWICK, of 64, Bramall Lane, Stockport, in the
County of Chester, Engineer, do hereby declare the nature of this invention and
in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:-
My invention relates to improvements in what are known as box covering
machines for applying at one operation one or more covering strips of paper,
cloth, or other material to a paper or other box or lid. In such a machine the
box or lid to be covered is placed on a suitably shaped "form" secured adjustably
on a shaft driven by the machine, and the strip of paper covering the box and
lid is cut off at the proper point by knives actuated by a rod which connects
one of the knives with the cam which gives the motion at the right time and
which connecting rod has to be adjusted in length to every varying size of box;
which adjustment, to get the lever to actuate the cut off knife always at the
same strength, is very difficult.
In these machines also the strips of paper or other material which are placed
on the machine cannot easily be moved sideways to get them in a line with the
box being covered and it necessary for the operator to stop the machine to
adjust the strips and move them to the position required on the glue roller.
The object of my invention is to overcome the said defects and in order that
my invention may be more fully understood I have caused to be appended
hereunto one sheet of drawings marked with letters of reference indicating like
parts in the various figures.
Fig. 1 is a side view, Fig. 2 a plan, Fig. 3 an end view of a complete machine
constructed in accordance with my invention. Fig. 1 is a sectional side view
and Figs. 4 & 5 are respectively a detached side and end view of a modification
of my invention.
In carrying out my invention and referring to Figs. 1, 1, 2 & 3, I dispense
with the said connecting rod and place the cam a which actuates the cut off knife
on a shaft b, working at right angle with the form shaft and mounted in
bearings d, e formed on a segmental bracket f.
This bracket is fulcrumed to the axis of the form shaft c and can be raised and
lowered and by means of a bolt g clamped to the frame in any desired position.
The said bracket is formed with a bed which carries a slide in which is mounted
the shaft carrying the knives m, n which cut the paper used for covering the
box.
The shaft 6 may be driven from the form shaft c by bevel wheels o, p. and
is either made square in section, as shown in the drawings, or round with a
keyway running its whole length in such a way, that the cam a is capable of
being slid along to any part of the shaft b as the knives m, n are moved higher or
lower and at any point has the same effect on the cut off knife m without the
intervention of a connecting rod.
The cut off knife m is furnished at one end with a bowl g kept in contact with
the cam by means of a spring and lever r & s, see Fig. 1, the levers being
loose on the shaft and adapted to hear against the stud of the bowl
the opposite side of the knife frame to which it is attached. When the knife m
{ at
is in its lowest position, its bowl q is upon the highest part of the cam a, as shown
in Fig. 1, from whence it is caused to drop through the pull of the spring r
to the lowest part of the cam and thereby raise the knife m against the knife n.
The slide may be moved on the bed i by means of a rack and pinion t, u,

page_text: the former being secured to the bed i and the latter carried by the slide k and
rotated by the hand wheel, a screw and nut w being provided to clamp the
slide k to the bed i when adjusted.
Another way is, instead of connecting the form shaft c by bevel wheels to the
cutter shaft b, see Figs. 4 & 5, to have a cam on the form shaft c to work
against a study on the cutter shaft b which latter at each revolution of the
form shaft c has imparted to it a partial turn as well as to the boss z which is
adapted to slide on the cutter shaft b. The boss z is connected with the cut off
knife m by a short link 1, one end of which is pitoted to the frame end of the
knife m, see Fig. 5, and the other connected to a crank stud on the upper end
of the boss whilst a spring y¹ connected to the stud y returns the shaft 6 to its
normal position.
I also fix the brackets 2, holding the reels of paper 3 and the frame h¹ of
the glue box 4 on the framework on the machine, in such a way that the
operator by means of a rack 5 and pinion 6 or otherwise, can move the said
glue box and with it the paper sideways whenever required to adjust the paper
in a line with the box or lid being operated upon from the working end of the
machine.
For instance I may adapt the frame h¹ carrying the strip rollers and glue box
to slide upon the table 7 and secure to the side of the frame h¹ the rack 5 whilst
the shaft 8 carrying the pinion 6 I mount in bearings 9 secured to the said
table.
In other box covering machines the adjustment of the strip has been done from
the back of the machine whilst by the improvements described the adjustment of
the strip is effected from the working end of the machine and thus the necessity
of the attendant walking round the machine dispensed with.
The form shaft is actuated by means of a treadle 10, ratchet wheel and
pawl 11 & 12, connecting rods 13 & 14 and lever 15 by alternately depressing
with the foot, the treadle 10 at each side of its fulcrum, as will be readily
understood.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim, is;
-
1st. In a box covering machine, the combination with the form shaft c and
strip cutting knives m, n of a shaft 6 actuated from the form shaft c and carrying
a boss or cam a adapted to slide and rotate, so as to actuate the cut off knife m
in any position, all substantially as set forth.
2nd. In a box covering machine, means for laterally adjusting the frame carrying
the strip rollers and glue box from the working end of the machine, all sub-
stantially as set forth.
Tlated th
1
T
1000
F. BOSSHARDT & Co.,
4, Corporation Street, Manchester, Agents to Applicant.