Year: 1886

page_text: Figure 6 is a plan, on a larger scale, of a finished blank.
A, is the roll of paste board mounted horizontally, so as to revolve, on a suitable
support on the main frame.
B, is a smooth cylinder mounted on the shaft a, on which is a gear wheel b which
is arranged to turn freely on the shaft in one direction; but when turned in the
opposite direction engaging the shaft and turning it by means of a ratchet
wheel c
C is a well known device for cutting or scoring box material. It consists of one
or more sharp edged wheels d mounted in adjustable supports on a transverse
bar e, and revolved by contact with the paste-board, and making longitudinal
[Price 8d.]

page_text: indentations or scores therein as it passes over the cylinder B. D is a toothed
segment lever pivoted to the main frame at g, and arranged to intermesh with the
gear wheel b. Said segment lever is connected with a crank E, secured to the
main shaft F, so as to revolve therewith, by a connecting rod G.
The mechanism for forming the transverse scores, consists of one or more bars f
each carrying a thin knife, and arranged to slide vertically in suitable supports i,
erected on the main frame. Said bars and knives are arranged above a solid bed
plate ¹, forming a part of the main frame, and correspond in number to the number
of transverse scores required. They are raised, and are at the proper time brought
down upon the sheet of box material, so as to indent it, by a pair of rock shafts H, H,
mounted on opposite sides of the main frame, and having secured thereto, short
arins j,, which are connected to the opposite ends of the bars f, by connecting
rods k, k.
•
For the purpose of cutting out narrow slots or kerfs 1, (Figure 6) at each end of
the box, blanks, a series of thick knives m, m, are adjustably secured to a bar J,
arranged to slide vertically, in suitable ways in a frame K mounted on the main
frame, and having a series of slotted plates n, which form female dies through
which said kerfing knives work.
Similar knives o, o, of different shape are also secured to bar J, for formning the
ends of the lap p, (Figure 6). There are two sets or gangs, of the knives m and o,
with their corresponding plates n, the machine as shown being arranged to form
two boxes simultaneously from a single width of material. The bar J is actuated
by the rock shafts H, H, which are connected by the connecting rods x, x, with the
ends of the bar.
L, L, are cups suspended from the shaft Q, and carrying paste which is distributed
by the belt r, along the lap p in a manner well known in this class of machines.
M and N are a pair of feed rolls, the lower one of which is connected by means
of bevel gear wheels 8, s, and t, t, and shaft u, with the shaft carrying cylinder B,
so as to move simultaneously with said cylinder at the same rate of surface speed.
The object of said rolls is to draw and hold smoothly the sheet of box material
during the processes of scoring, kerfing, pasting and cutting into requisite lengths.
O is a bar sliding vertically in standards v, v, and carrying the shɛar knife w,
which separates the completed blanks from the sheet. Said bar is actuated by the
rock shafts H, H, which are connected with the ends of the bar by connecting
rods x1, x¹.
The folding mechanism consists of a pair of swinging arms y, y, secured to
shafts 2, 2, which rest at each end in bearings P, P, which are adjustably secured
to the bars R, R. Spur gear wheels 2, 2, are secured to the inner ends of shafts z,
and corresponding rack bars 3, 3, intermesh with said gear wheels and are secured to
the shearing bar O, so that at each movement of said bar, shafts z are turned.
S is a thin metal plate for the purpose of receiving the completed blanks when
severed from the sheet. The normal position of arms y, is above the top line of
plate S and the blank lying thereon, and when the rack bars 3, 3, move downward,
the arms are simultaneously moved downward and inward, thus folding the blank
upon itself around the plate.
A pair of segmental wheels 4, 4, mounted on shaft T, engage the ends of the
pair of folded blanks between themselves and a friction roll 5 and carry the blanks
forward to the pressure rolls 6, 6.
Shaft T is driven by a chain belt passing over sprocket wheels U and V.
The pressure rolls 6, 6, are for the purpose of pressing the pasted edges of the
blank closely together, and they are driven by a belt 7.
The boxes pass from the pressure rolls to the cases 8, 8, in a flat form, which
only needs to be bent at the places scored to form a complete box. Rock
shafts H, H, are oscillated simultaneously by means of a pair of grooved cams 9, 9,
which are mounted on the main shaft F, so as to turn therewith: A pair of
arms 10, 10, are secured to, and project inward from the shafts H, H. To said

page_text: arms are connected a pair of rods 11, 11, which slide in bearings secured to the
frame and are turned inward at their lower ends to engage the grooved cams 9, 9.
The operation of my machine is as follows:
The sheet of paste-board is drawn by hand from roll A, over cylinder B and
through the machine The main shaft is then put in motion. With the first half
revolution of said shaft, the cylinder B, and the feed rolls M and N, are turned,
and the sheet of paste-board is carried forward the length of one box blank, and
the longitudinal scores 12 are made by the wheels d, and paste is applied along the
lap p. The bars f, f, J and O, are at the same time simultaneously raised by the
partial rotation of the rock shafts H, H.
The completion of the revolution oscillates the rock shafts in an opposite direc-
tion, thereby bringing down bars f, f, J and O, and their respective attachments,
and simultaneously performing the several operations of making the transverse
scores 13, the slots 7, cutting off, folding and pressing a pair of blanks like that
shown in Figure 6. Said blanks are separated longitudinally by a cutting disk 14,
mounted in the feed roller N.
Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed, I declare that
what I claim is:-
1st. The general arrangement and construction of paper box making machine
herein before described and shown on the sheet of drawings hereunto annexed.
2nd. In a machine for making boxes from a continuous sheet of material, a
supporting frame, a pair of feed rolls, a cylinder, scoring wheels opposed to said
cylinder, and arranged to score said sheet of box material longitudinally while
passing over said cylinder, means substantially as shown and described whereby
the cylinder and feed rolls are intermittently rotated at regular intervals, and the
transverse scoring knives mounted between said cylinder and feed rolls, all com-
bined and arranged to co-operate as specified.
3rd. In a machine for making boxes from a continuous sheet of material, a main
frame, a main shaft a series of kerfing knives, a shear knive, and a folding device
of the class shown and described, all mounted in successive order, on the maiu
frame, a pair of shafts mounted longitudinally, one on each side of the main frame,
arms secured to said shafts opposite to, and connected by rods with the bars upon
which said kerfing knives, shear knife, and folding device are mounte 1, and inter-
mediate mechanism connecting said main shaft and said longitudinal shafts,
whereby the longitudinal shafts are rocked at each revolution of the main shaft,
and the kerfing knives, shear knife and folding mechanism are operated simul-
taneously, all combined and adapted to co-operate, substantially as specified.
4th. The folding mechanisin consisting of the shafts z, z, the swinging arms y, y,
the spur gears 2, 2, the rack bars 3, 3, the bar O, and plate S all combined and
arranged to co-operate substantially as specified.
5th. The combination of the shaft T, segmental wheel 4, and pressure roll 5, for
the purpose specified.