Improvements in Paper Box Machinery.
Year: 1894

page_text: The decision of the Comptroller-General, of the 21st day of October 1895, allowed,
under Section 18 of the- Patents, &c. Act, 1883, an Amendment of this
Specification."
Date of Application, 16th Mar., 1894-Accepted, 28th Apr., 1894
[Communicated from abroad by FRANK HOPKINS ALLEN, Mechanical Engineer,
of Norwich, New London, County Connecticut, U.S.A.]
Improvements in Paper Box Machinery.
1, JOHN WILLIAM MACKENZIE, of the Firm of Wheatley and Mackenzie,
Engineers and Patent Agents, of 40 Chancery Lane, London 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 :-
This invention is in paper box machinery of the class that takes the cardboard
body blanks (previously cut, scored and cornered) and the end blanks, as well, and
at the proper time feeds said blanks into position to be operated upon by a vertically
movable form or plunger, which forms the cardboard into desired box form,
sticking on the end blanks and finally delivering the box at the rear of the
machine.
All of the varions movements of the machine are performed automatically and in
proper sequence to produce boxes of this class very rapidly and more perfectly
than can be done by the hand methods now commonly practised. Said machine is
made adjustable in all its operative mechanisms so that various sizes of boxes,
between certain limits, can be produced.
To explain with greater facility the construction and operation of this machine,
several sheets of drawings (nine in number) have been provided, in which
Figure 1 is an elevation of the machine from the side where the driving pulley
is located and Figure 2 is a similar view from the opposite side; i.e. the side
where the end blanks are fed into the machine to take their proper places at the
ends of the form upon which the box is to be made. In this view the upper portion
of the frame of the machine is broken, away, as said upper portion is clearly shown
in Figure 1.
Figure 2A is an enlarged elevation of the mechanisms for starting and feeding
the body-blanks and Figure 2B is a vertical, sectional, view of portions of said
feeder mechanism.
Figure 3 is an elevation of the delivery end of the machine, that is to say, the
end from which the finished boxes are discharged.
Figure 4 is a plan view of so much of the machine as lies below section x-x of
Figure 1.
Figure 4 is an enlarged plan view of a portion of plate 57 having one of
the lugs 189 secured thereto and Figure 48 is a cross-sectional view of the same
parts.
Figure 5 is an enlarged view of the blank-supporting carriage and of the bed
upon which said carriage slides, the bed being shown in section.
Figure 6 is a plan view of the machine taken on line x-x of Figure 3, showing
particularly the paste-boxes and the adjustable plates upon which they are

page_text: mounted. This view also shows the mechanism for driving the paste-rolls in said
boxes.
Figure 6 is an elevation of a portion. oft frame. 51 and of plate 71° showing the
manner of clamping said plate to a ledge on the inner face of said frame.
Figures 7 and 8 are enlarged. detached, views of one of said paste-boxes, the
former figure being an elevation and the latter a sectional view of the same.
Figure 9 is a plan view of a, plate (133) located below the paste-box supports,
illustrating particularly the pressure-heads. by means of which the end, blanks are
pressed on to the body blank of the box and also showing mechanism for supporting
the rear side of the box while said box is being formed. This view also shows, in
proper relation to the mechanism already described the devices for feeding forward
the end blanks.
Figure 10 is a plan view, taken on line y-y of Figura 3, showing the shaft
which serves as the prime mover, of the machine, as. well as the connected shafts
which, bear, the principal cans, eccentric and levers for controlling the various
movements of the machine. This view also shows the box delivering apron andlits
driving mechanism.
Figures 11, 12 and 13. show in elevation, detached from their supports, the cams
and levers that control, respectively the body-blank starting mechanism, certain
blank-pushing mechanism used to push said body blank forward under the plunger,
and mechanism for operating certain sliding shelves located within the pressure-
heads and serving to support the end blanks until such time as the latter shall be
stuck upon the ends of the body blank.
Figure 14 is an elevation of a portion of the frame 50, from its inner side,
illustrating the means provided to operate the vertically movable planger-rods, and
also the means provided to impart reciprocating motion to the " rear support"
mentioned in connection with Figure 9.
Figure 15 shows the pressure-heads and the lever and eccentric connections by
means of which said heads are operated, and Figure 16 is a plan view of said
eccentrics and the eccentric rods.
Figure 17 is a rear side elevation of the pressure-heads showing also the
mechanism for operating the sliding shelves above referred to. In this view the
rear side support" is shown.
"
Figure 18 is a side elevation of a longitudinally reciprocating shaft to which is,
secured an arm that moves the said sliding shelves.
Figure 19 is a plan view of one of the pressure heads showing said shelf in
dotted lines as if moved forward to support an end blank.
Figure 20 is a rear end elevation of said pressure head, showing also the bed-
plate upon which it is mounted to slide, as well as the sliding shelf mounted.
therein.
In Figures 21 and 22 are shown rear and end elevations of the so called "rear
support and Figure 23 illustrates portions of the mechanism by means of which
said"
rear support" is given reciprocating motion in its ways.
Figure 24 is a plan view of the bed-plate upon which are movably mounted the
pressure-heads, the rear support" and the end feeding devices. In this view only
the plates that support the said end-feeding devices are shown and one only of the
pressure-heads.
Figure 25 is a view of the same from the left hand end.
Figure 26 illustrates a rock-shaft and levers connected therewith for moving a
slide. (136) that feeds the end blanks into the machine and also shows adjustably
connected to the shorter of said levers a rod that projects downward and is moved
by a cam bereinafter described.
Figure 27 is a plan view of one of the systems of plates and connected guides for
supporting the end blanks and also shows the sliding feed-plate that pushes a single
blank forward whenever a box is to be made.
Figure 28 is a view of certain of the parts of Figure 27, as viewed from the left
hand end.

page_text: Figure 29 is an elevation of the sliding feed-plate shown at 136 in Figure 27 and
Figure 30 is an end view of the same.
In Figure 31 is shown, a sheet metal plate that is adjustably mounted upon said
feed-plate and serves to push a single end blank from the supply clamped upon
plate 134 at each forward movement of the feed-plate.
Figures 32, 33, 34 and 35 illustrate details of mechanism for binding or clamping
said supply of end blanks and for feeding them forward whenever a blank. is
removed by the feeder.
In Figure 36 is shown, in perspective, a box of the class made by this machine,
one of the ends being secured to the body blank, the other end being purposoly
removed to expose the inturned flanges to which said end should be secured."
Before proceeding to describe at length and in detail the construction of this new
box machine it may be well to state briefly that the cardboard body blanks are first
cut to size and scored (i.e. partly cut through) where they are to be bent up and
provision is made so that, when thus bent up, an inwardly turned flange, about one
half of an inch in width, is provided at each end (see Figure 36) and upon these
flanges rectangular pieces of cardboard are pressed to form the ends of the box ;
the said flanges being first pasted.
In the operation of making a box upon this machine, a body-blank is first.fed
from the underside of a pile at one end of the machine, and is carried under a
vertically reciprocating plunger, of box form, that is exactly the size of the inside
of the boxes which it is desired to make. As the plunger descends it forces the
body blank down through a rectangular opening bending up the sides and flanged
ends on the score lines and, as the plunger continues, the said body-blanks are
carried downward past the periphery of paste-rolls, which deposit a supply of paste
upon the outer faces of said flanges. While the plunger has been descending,
and forcing the body blank before it, the rectangular end blanks have been fed into
place, one at each end of the pasted flanges and, when the several blanks are in
proper position, pressure heads advance and press the end blanks onto the flanges of
the body blank; both ends being thus simultaneously set on. The pressure-heads
then recede and the plunger is carried upward leaving the finished box which drops
upon a constantly travelling, endless, apron and is delivered by said apron at the
rear end of the machine.
Having described generally the action of the machine specific description will now
be furnished of its construction.
Referring now to the drawings, the figures 50 and 51 denote the main end frames
of said machine, the same being stiffened and strengthened by cross-frames 52-53
near the bottom of the machine and also by a cross-bar 54 clamped between upward
extensions of frames 50 and 51.
Tie-rods 55-56 also serve to bind the end frames together, although said tie-rods
are provided as well to support two plates 57 and 58 that are adjustably clamped to
said rods. When the machine is in use plates 57 and 58 are adjusted so that a
plunger 59, carried by a rod 60 fitted to slide in the cross-bar 54, may easily pass
downward between them and these two side plates form the "breaking up" plate
of said machine. Adjustable side guides 61 and 62 are mounted upon the plates 57
and 58, these side guides serving to hold the body blanks in proper position
relatively to the plunger as said blanks are pushed forward one at a time under said
plunger.
The plunger rod 60 is secured to a movable cross-bar 63 whose ends are supported
by rods 64-65 that are fitted to slide in bearings near the ends of the fixed cross-
bar 54. Each of these rods 64-65 extends downward just inside the frames 50)
and 51 and has a swivel or link connection 66 that in turn is pivoted to the free
end of a lever 67 which, at its opposite end is hinged to the machine frame as at 68.
Cams 69, carried by a shaft 70 operate, at each revolution, to lift the levers 67 and
so force the rods 64-65 upward.
This operation, repeated at each revolution of shaft 70 gives to rols 64-65 and
cross-bar 63 (as well as the plunger 59) a vertically reciprocating motion.

page_text: Immediately beneath the two adjustable plates 57-58 is a bed plate 71 having
mounted to slide thereon in a direction at right angles to the movement of the
"breaking up" plates 57 and 58, certain plates 71 and 71° that may be termed the
paste box plates for the reason that they have mounted thereon, (at each end of an
opening in plate 71 through which the plunger descends at each stroke) paste-
boxes 72 each having journalled therein a paste-roll 73 whose periphery extends
somewhat beyond the edge of said box into the path of the vertically movable
plunger.
Each paste-roll 73 has upon the projecting end of its journal a gear 74 that is in
mesh with a similar gear 75 on a shaft 76 that is journalled on the slide-
plates 71-71. Shafts 76 extend outward, through the machine-frame 50 and
bear upon their exposed ends score-pulleys 77 that are driven by a peculiar
arrangement of belt 78 best illustrated in Figure 1 of the drawings. Belt 78 is
driven by a similar score pulley 79 hung on a stud supported by a bracket 80
projecting from frame 50, over the initial shaft of the machine and the said belt, at
the opposite, or delivery end of the machine passes around a score pulley 81 hung
on the side of a lever 82 that is adapted to be swung to take up the slack of said
belt. To lock the belt tightening lever 82 in desired position, a notched, arc-
shaped bar 83 is provided to receive the point of a spring-pressed pawl 84 hung in
said lever, as will be understood by reference to the drawings.
It will be seen that the shafts 76 project through horizontal slots 50* in the end
frame 50. Whenever it is necessary to adjust the paste-boxes, to coact with
plungers (59) of greater or lesser length, it is only necessary to slide the "paste
box" plates 71 and 71° into their respective proper positions and secure them to
the bed 71 by suitable clamping screws; the belt 78 meanwhile adapting itself to
the change of position of the intermediate score-pulleys 77.
The score pulley 79 has connected therewith a flat faced pulley 85 which is driven
by a belt. 86 from a pulley 87 on a shaft 88 which latter serves as the prime mover,
or initial shaft, of the machine and is provided with a pulley 89 by means of which
it may be driven by belt from any convenient counter-shaft. Said shaft 88 has
secured thereto a small gear 891 that meshes with and drives a larger gear 89 on a
shaft 90 that carries the various cams and eccentrics which control the operative
mechanisms of the machine.
By preference the ratio of speed transmitted from shaft 88 to the cam shaft 90 is
as one to six so that a rapid rotation of the initial shaft becomes a slow but steady
movement of the cam shaft.
Upon the opposite end of the initial shaft 88 is a balance wheel 91 that also may
serve as a hand wheel by which to turn the machine by hand during the time when
adjustments are being made.
At the front and delivery ends of the machine are rods 92-93 that are secured
in frames 50 and 51. and that serve as the fulera of certain levers 94-95 of open
yoke form whose lower ends are pivoted to the ends of eccentric-rods 96-97 that
are operated by eccentrics 98-99 carried by the cam-shaft 90 in such manner that
each revolution of said shaft serves to swing the lower ends of said levers outward
simultaneously. The pivotal connection between the rods 96, 97 and the lower ends
of levers 94-95 includes powerful springs 100 which may yield slightly if sufficient
resistance is offered by the levers when the eccentrics seek to revolve.
These springs relieve the otherwise rigid (inflexible) action of the pressure-heads
and prevent breakage of said levers 94-95.
The mechanism which supports the pile of body-blanks and feeds them forward
under the plunger 59 one at a time, is mounted upon a plate or frame 101 that is
secured to the tie-rod 56 and also further supported by a bracket 102 secured to the
shaft 93 that forms the fulcrum of the pressure lever 94.
Upon the frame 101 is mounted to slide a wedge-shaped carriage 103 having
fastened to its rear edge a thin blade 104, of steel, that projects upward, about the
thickness of a single sheet of cardboard and serves to push the bottom blank before
it as the carriage 103 moves toward the plunger 59.

page_text: This mechanism simply starts the blank sheet and carries it until its inner edge
enters between two feed-rolls 105-16 that draw said blank, from underneath the
pile and feed it forward toward the plunger, but not sufficiently fur to be acted upon
by said plunger. The forward movement of the body blank is completed by
a pusher-rod 107, that starts forward (just as the feed rolls 105-106 have dropped
the blank) and pushes the latter into the desired position under the plunger. The
lower feed-roll 106 is journalled in bearings secured to the machine frames (see
dotted lines in Figure 2) and has on its projection a pulley 108 that is driven
by a belt 109 that passes downward around a pulley 110 hung on the end of
the shaft 93.
A second belt 111, driven by a pulley 112 on the initial shaft 88, engages
a smaller step on pulley 110 and drives the latter, as will be clearly understood by
reference to the drawings. The upper feed-roll 105 is journalled in one end of
angle arms 113-114 that are pivoted to a stand 115 secured to the plate 101. The
opposite ends of arms 113-114 are engaged by a spring 116 that seeks constantly
to hold the feed-roll 105 in close engagement with its companion.
The
The two feed-rolls are caused to revolve together by gears 117-118.
stands 115 form side-walls to aid in supporting the pile of body blanks and a vertical
plate 119 serves to support said blanks at the side nearest the feed-rolls. Plate 119
is formed with a narrow horizontal opening or slot 120 through which the bottom
blank may pass to reach the feed-rolls. To support the outer side of the pile
of blanks there is provided an angle arm 121 that is adjustably secured to the
plate 101 and has secured to its upper end a shiold 122 that forms a vertical wall at
The rear of the pile of blanks. The mechanisnis provided for moving the wedge-
shaped plate 103 and the pusher-rod 107 are best seen in Figures 1, 11 and 12.
Plate 103 is moved by a cam 123 on shaft 90, said cam acting upon a roll 124 on
the side of a forked rod 125 whose other end is pivoted to a lever-arm 126. Said
lever arm is fulcrummed on a bracket 127 extending outward and upward from the
cross-frame 53. The revolution of cam 123 serves to cause the upper end of lever
arm 126 to travel forward and backward, carrying with it the blank-starting
carriage 103 with which said lever-arm is connected. The pusher-rod 107 is
operated by similar mechanism consisting of a cam 128 on shaft 90 which cam
operates a forked rod 129 whose other end is pivoted in a slotted extension 130 of
an arm 131 also hung on the bracket 127. The upper end of arm 131 is connected
by a link 132 with the sliding pusher-rod 107. When said arm 131 is rocked
forward (toward the machine) the pusher-rod is simultaneously moved. It should
he noted that the cam 123 is of eccentric form and will therefore operate to give the
blank-starting carriage 103 a steady forward and backward movement, but the
cam 128 approximates a heart-cam in shape and therefore has a considerable period
of rest during each revolution. When the machine is in service, the carriage 103
starts the bottom blank of the pile with a slow movement and pushes it until it is
grasped by the constantly revolving feed-rolls 105-106 and, when the blank
is dropped by them, the pusher-rod 107 follows it with a quick movement and pushes
it into proper position under the plunger. By varying the connection of rod 129
with the slotted extension of arm 131 the movement of the upper end of said arm
and of the pusher rod 107 may be correspondingly varied.
Located below the paste-box bed 71 is a similar bed-plate 133 that is bolted to
the frames 50-51 and supports the mechanisms that feed the end-blanks, also the
pressure heads and the so called "rear support"; all of these three systems of
imechanism being arranged to slide on said bed-plate. Figure 9 of the annexed
drawings shows the bed-plate removed from the machine frames, and with sufficient
of the end-feed and other movable parts in place thereon to explain clearly the
construction and action of said parts.
Reference may also be made, with advantage, to Figures 24 to 30 at this time.
The reference figures 134 indicate a plate mounted upon the bed-plate 133 and
capable of adjustment within certain limits and indicated by dotted slots near each
end of said plate, in Figure 24.

page_text: Upon this adjustable plate 133 are plates 134 that are capable of adjustment
lengthwise on plate 133 and the confronting ends of plates 134 have secured thereon
uprights 135. that are planed to provide dovetail ways in which may slide certain
carriages 136 (see Figure 30) that serve to feed the end blanks, said blanks being
piled on the plates 134 and adapted to be forced forward against the uprights 135
ly follower 137 whenever a blank is removed by the blank carriage 136.
n. Figure 9 said carriages are shown as moved to carry a pair of end blanks into
the machine.
.
The end blanks are supported by side guides 138 and 139 the former of which is
fixed upon the inner edge of plate 134 while the latter is adjustably mounted on said
last nained plate.
To make the feeding of the end blanks positive and to enable the attendant to
adjust the end-blank pickers very finely a sheet steel blade 140 is adjustably secured
to the side of each carriage 136 as best seen in Figures 29, 30 and 31. Blade 140
is secured to blocks 141-142 that may slide in a slot 143 in carriage 136, said blocks
being mounted upon a screw shaft 144 in such manner that the rotation of the
screw-shaft will cause the said blocks, and blade to travel in slot 143. The outer
ends of carriages 136 are connected by links 145 with a rod 146 that is hung in the
free ends of arms 147 whose lower ends are clamped to a rock-shaft 148 journalled
in brackets 149 that are secured to the machine frame 51. The rock-shaft 148 has
secured thereto a slotted arm 150 to which is pivotally connected a rod 151 whose
lower end is pivoted to a lever-arm 152 hung on the machine frame 51 as most
clearly seen in Figures 2, 3 and 10. The free end of arm 152 bears a roll 153
that rides on the edge of a cam 154 on cam-shaft 90.
Ench revolution of cam 104 rocks the shaft 148-and throws the upper end-of
arms 117 toward the machine, thus foreing the earringe 136 in the sume direction
and pushing two end blanks into the machine. Carriage 130 is then withdrawn by
the return of arms 147 to their normal position.
Each revolution of cam 154 rocks the shaft 148 and throws the upper end of arms 147
away from the machine drawing the end blank carriage 136 in the same direction which
position is maintained for the greater part of the revolution of cam 154. By the return
of the arms 147 caused by the springs 147 when the low part of cam 154 comes to the
roll 153 the end blank carriage is moved forward carrying two end blanks into
position.
<<
Each of the blank-supporting plates 134 is formed with a lateral extension 134¹
(see Figures 24 and 25) in which is fitted one of the so called pressure-heads" 155
(see Figures 9 and 20). These pressure-heads are formed with a base plate having
a right angular, upright, face 155" and side walls 155 the latter being connected by
a bar 156 to which is pivoted one end of a rod 157 whose other end is screw-threaded
and extends through a collar 158 that is trunnioned in the upper end of the pressure
levers 94-95.
Screwed upon rod 157, at opposite ends of collar 158, are nuts 159-160 which
may be adjusted to change the position of the pressure heads to operate with
plungers 59 of different sizes. It will now be understood that each revolution of the
eccentrics 98-99 will rock the levers 94-95 and move the pressure-heads simul-
taneously inward toward the plunger. During the time when the end-feeding
carriages 136 are moved forward, to push in the end blanks, the pressure-heads are
drawn back, out of the path of said carriages.
To receive and support the end blanks, until such time as the latter are stuck on
to the flanges of the body blank, certain shelves 155 are provided that are mounted
on the base-plates of the pressure-heads and adapted to be moved out as in dotted
lines in Figure 19, to allow the end blank to rest thereon for a time and then be moved
back again, within the pressure-head, to allow the finished box to drop from the
plunger as the latter passes upward. These shelves 155 are moved in their seats,
at proper times by arms 156¹ that project through slots in the side-walls of the
pressure-heads and are fastened to and carried by certain rods 157' fitted to slide
in stands 158 fastened to the bed-plate 133.

page_text: Secured adjustably on rods 157 are collars 159¹ to each which is fastened a
lever 160 hung on a bracket 161 secured to the underside of bed-plate 133. The
levers 160¹ are connected by a rod 162 which is pivoted to one of. said levers above
and to the other below their respective fulcrums, so that any movement of one of
said levers is imparted to the other, thus rendering it unnecessary to provide
separate operating mechanisms for both of said levers. The rock-shaft of one of
the levers 160' is connected at its lower, or free, end with an arm 163 which. in
turn, is pivoted to a connecting rod 164 whose lower, forked, end bears a roll 165
that rides on the periphery of a cam 166 carried by shaft 90 (see Figure 18). The
levers 160 are connected by a spiral spring 167 that tends to draw their upper
ends toward each other.
4
Each revolution of cam 166 results in sliding the rod 171 and the connected
arms 156 forward and backward, thus moving at the same time the shelves 155.
168 indicates a carriage mounted in ways on the bed-plate 133 and having a
vertical face 168. This carriage is opposite the end-feeding mechanism and is
referred to hereinbefore as the rear support," for the reason that it serves to
support the box on that particular side of the plunger when the machine is in
operation. Said carriage 168 is controlled by mechanism that moves it forward
and holds it in close contact with the box while the latter is being formed and then
recedes to allow said box to drop.
Secured to the top of carriage 168 are two overlapping, slotted, bars 169-170
that project a considerable distance beyond said carriage. These projecting ends
form stops to limit the forward movement of the end blanks as the latter are fed
onto the shelves 155, in front of the pressure-heads, and to push said end blanks
back to the proper position to register with the flanges of the body blank if they
(the end blanks) are carried too far by the end feeders 136.
Secured on the base-plate of the " rear support" is an adjustable piece 171 to
which links 172 are hinged, the outer ends of said links being similarly connected
with an arm 173 that is secured to a rock-shaft 174 hung in brackets 175 fastened
to the machine frame 50. Also secured to said rock-shaft is an arm 176 whos
free end is pivoted to a rod 177 (see Figure 23) whose lower end is connected with
an arm 178 hung on the inner side of frame 50, as seen in Figure 10.
The free end of arm 178 bears a roll 179 that rides on a cam 180 carried by
shaft 90.
Each revolution of said cam serves to rock the shaft 174 thereby swinging the
arm 173 forward and backward and imparting a similar reciprocating movement
to the "rear support" carriage 168.
"
"
rear
It will now be understood that when the body-blank is fed underneath the
plunger 59, and carried downward by said plunger, the end blanks are fed forward
onto shelves 155 and the end carriages 136 recede out of the
The
way.
support then advances to adjust said end blanks and, at the same time, the
pressure-heads advance and press the ends onto the pasted flanges of the body of
the box. While the pressure-heads are thus operating, the shelves 155° are moved
outward. The rear support" and pressure-heads then recede, the plunger moves
upward and the finished box drops upon an endless apron 181 that is carried at one
end by a pulley 182 on a shaft 183 and at the other (rear) end by a pulley 184
hung in a frame 185 secured to the rod 92 that supports the pressure lever 95.
This apron 181 travels constantly toward the rear end of the machine being moved
by a belt 186 that connects a pulley 187 on shaft 183 with a driving pulley 188
carried by the shaft 70 which is geared to shaft 90 as will be best understood by
reference to Figure 10 of the drawings.
Clamped on the inner edges of the "breaking up" plates 57-58 are lugs 189
that should be so located as to register with the four corners of the plunger 59.as
the latter passes downward between the plates 57-58 to break up a body, blank.
These lugs then serve to aid in turning in the flanges at each end of the box so
that the end blanks may be properly stuck thereon.
The details of the paste-boxes and rolls are best seen in Figures 7 and 8. Each

page_text: "
.
.
.
.
.
box is shaped to receive a liberal supply of paste, which gravitates toward the roll
journalled in said box. The roll is milled or checked, as, shown; the grooves or
interstices forming pockets which enable the roll to carry a good supply of paste
to the box and the projecting points of the checked face serve to pick or perforate
the card-board flanges and thus permit the cardboard to more readily, absorb the
moisture in the paste.
At the rear side of each paste-roll is a scraper 190 that is adjustable by means
of screws 191 so that the scraper may be brought into close relation to the roll to
remove all surplus paste. The paste rolls are kept in constant revolution and their
peripheries should travel at the same spred as the descending plunger 59.
Having now particularly described and ascertained the nature of said inven-
tion, and in what manner the same is to be performed, that which is claimed is
1. In a box machine, a reciprocating-planger, mechanism substantially-as
described-for-feeding the body and end blanks, paste rolls for pasting the langes of
the body-blank und pressure-heads-for-setting-the-ends-onto said pasted flanges
1. In a boa machine the combination with a reciprocating plunger of (1) the feed
mechanism shewn in Fig. 2^, (2) the paste rolls provided with projecting points, (3) the
spring controlled pressure heads shown in Fig. 15, (4) the sliding shelves 155° shewn in
Fis. 19 & 20 for supporting the ends of the box while it is being formed, and (5) the
mechani m for actuating the said sliding shelves numbered 160, 161, 162 163 and
the spring 167 all arranged and operating as and for the purposes described and
ilius:rated.
2. In a box machine, in combination, a reciprocating plunger, and pressure heads
co-acting therewith, as set forth; said pressure heads being actuated by mechanism
that includes springs for, relieving the otherwise rigid effect, as specified.
3. In a box machine, in combination, a reciprocating plunger, pressure-heads
located at opposite ends of said plunger, mechanism for actnating said pressure
heads, shelves mounted to slide within said heads and mechanism for withdrawing
said shelves upon the completion of a box, all substantially as specified.
4. In combination with a reciprocating plunger and pressure heads located at
each end thereof, mechanism for feeding the body blank consisting of a starter 103,
feed-rolls 105-106 and a pusher-rod 107, and meclianisms for actuating the same
at proper times, all substantially as specified.
3. In a box machine having a vertically reciprocating plunger, the following
.named-mechanisms arranged to engage or co not with said plunger as the latter
descends, to wit:- first, a breaking up plate onto which the body blank is fed-and
which bends up said body blank, second, pasterolls that engage the bent up flanges
and deposit paste thereon-and, third; pressure heads that press the end blanks on to
said pasted Banges.
65. In combination with the paste-roll of a box machine, tension regulating
mechanism for the driving belt of said paste-roll, consisting of a movable pulley
in the train that supports said belt, and means for locking said pulley after
adjustment, substantially as specified.
7. In combination with the box blank supporting form of a box machine, a
paste roll having its circumferential surface provided with projecting points
adapted to be forced into the material with which the roll is in contact, substantially
as and for the purpose specified.
8. 6. In combination with the blank-supporting form of a box machine, a paste box
with inclined bottom having journalled therein adjacent to said form a paste-roll
the circumferential surface of which is provided with projecting points adapted to
be forced into the material with which the roll is in contact and an adjustable
scraper co-acting with said roll in manner and for the purpose specified.
Dated this 28th day of February 1891
WHEATLEY & MACKENZIE,
40. Chancery Lane. London. W.C., Agents.