Improvements in Box-making Machines.
Year: 1898

page_text: Date of Application, 19th Aug.,
1898
4000
A
1000
Improvements in Box-making Machines.
I, HENRY STEWART; of Prophetstown, County of Whiteside, State of Illinois,
U.S.A., Inventor, do hereby declare the nature of this invention to be as
follows:-
The object of this invention is to provide certain new and useful improvements
in box making machines whereby the operation is more quickly and efficiently
performed than has heretofore been possible with machines at present in use.
The invention comprises a suitable frame in which a forming head or block
is adjustably mounted and is adapted to have face plates of various sizes secured
to it in order to form boxes of different sizes. A clenching block is also adjust-
ably mounted in the frame and works in conjunction with " clappers" which
press the parts together. Magazines are placed in various positions to retain
bottom and side pieces which are pressed forwardly and into position around the
forming block by plungers which reciprocate beneath the magazines and push
the pieces of wood, or material into position as the machine operates; the
plunger being worked by cams or the like on suitably mounted shafts.
A tank to contain glue (which is heated by a gas or other flame beneath the
tank) is situated beneath the plate over which the side pieces pass from the
magazines, and has rotary brushes which can be adjusted in any desired position
to apply the glue to the edges or convenient parts of the side pieces through
longitudinal apertures in the plate aforementioned; the apertures being formed
by slides or like means whereby their position may be altered to suit box side
pieces of various sizes.
The finished boxes may be removed by hand as completed or may be auto-
matically removed by travelling bands or like means.
D
11
3011
T
1000
R. RAINSFORD,
Agent for Applicant.
I, HENRY STEWART, of Prophetstown, in the County of Whiteside, State of
Illinois, United States of America, Inventor, 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:-
1

page_text: blanks of wood or other material, and has for its object to accomplish all of this
and to secure other and further advantages in the matter of construction, adjust-
ment, and operation, and to provide a machine which may be easily and quickly
manipulated, entirely or in part automatic, and capable of being operated with
great rapidity.
My improvements involve certain new and useful arrangements or combina-
tion of parts and peculiarities of construction, as will be herein first fully
described, and then pointed out in the claims.
To give a more clear and better understanding of my invention, I will first
describe the peculiar construction of the box which the machine. puts together
and then the machine.
The four sides of the box are prepared in one long continuous strip, having at
proper intervals transverse V-shaped grooves cut nearly through the stock in
such a manner that when the remaining stock is made tough by moistening it
will bend, and when bent to right angles the side faces of the V-shaped grooves
will meet and form miter-corners for three of the corners of a box, the fourth
corner being formed by grooving each end of the side blank in such a way as
when they meet and are driven together they form a locking-corner. In proper
position for the reception of the bottom blanks the side blanks are usually
longitudinally grooved and the bottom blanks properly prepared for being
folded into said grooves. Glue may also be applied in the miter and locking-
corner joints in such a way as when properly prepared and put together to
form a strong, neat, and substantial box. The operation then of forming boxes
from previously-prepared parts is simply to apply glue to the miter and locking-
corners and properly wrap the side blanks around the bottom blanks and force
the locking-corner ends of the side blanks together. This is substantially what
my machine does automatically.
In the accompanying drawings, forming part of this specification, Figure 1 is
a front elevation of my machine with a portion of the frame broken away to
show the position of the auxiliary frames B and C. Fig. 2 is a sectional side
view as divided on the line (c), Fig. 1. Besides the working parts it shows
a number of side and bottom blanks in position in their respective magazines.
Figs. 3, 4, 5, 6, 7, 8, and 9 are detail views of the forming-head, of which
Fig. 3 is a side elevation with one of the circular faces (3) removed and a
portion of the front parts of (k) and (10) broken away. One of the forming-
clappers is seen in position ready for duty, the other in the position it assumes
when a box is folded. Fig. 4 is one of the forming-clappers in a forming-
clapper frame and shows the screw used in adjustment. Figs. 5, 6, and 7 are
detail views of parts which are seen in Fig. 2 and show the method of procuring
the circular adjustment. Fig. 8 is an end and Fig. 9 a side view of the part
in which the swivel ends of the screws which adjust the forming-clapper frames
are fitted. Its position is in the crotch of the inside circular part of the forming-
head. Fig. 10 is a perspective view of the auxiliary frames B and C, showing
the relation one with the other and the screws for adjusting them. Figs. 11
and 12 show the circular or tilting adjustment of the magazine for bottom
blanks. Fig. 11 is a side elevation of the bottom magazine turned bottom
upward. Fig. 12 is a perspective view of one of the circular openings in which
the circular parts from the bottom magazine fit. Figs. 13 and 14 are detail
views of the clenching-block and show the means of tilting the clenching-groove
of the clenching-block. Fig. 15 is a perspective view showing the glue-tank
partially removed from the steam-jacket. A section of the steam-jacket is
broken away to show its construction. Fig. 16 is a plan view of the bottom of
the magazine for side blanks. Fig. 17 shows one of the slides shown in Fig. 16.
Fig. 18 is a side view in perspective of one section of a glue-brush wheel with
brushes removed. Fig. 19 is a side elevation of the same with brushes in place.
Fig. 20 is a view of a plunger for side blanks. Fig. 21 is a section in per-
spective of the cross-piece A³. Fig. 22 shows a trip-slide which fits in the

page_text: groove shown in Fig. 1 underneath the guide projection from the plunger J.
Fig. 23 is a plan view of the end stop of the magazine for side blanks. Fig. 24
is a perspective view of the front of the magazine for side blanks. Fig. 25
shows the eye-headed bolt (13). Fig. 26 shows a crank-shaft that reciprocates
the plunger J and the ratchet (e¹). Figs. 27 and 28 are perspective views of
the forming-block and the forming-block frame. Figs. 29, 30, 31, and 32 are
detailed views of the plunger for bottom blanks, of which Fig. 29 is a view of
the face side, the bottom part of (g) being broken away to show the adjusting-
screw. Fig. 30 is a view of one edge: Fig. 31, a view of the inside movable
frame, and Fig. 32 a perspective of the circular or tilting adjustment part.
Fig. 33 is a figure designed to show the variation in position between a square
and an oblong rectangular box when formed in my machine. Fig. 34 is an
elevation of a side blank of a box.
A framework is provided to support the working parts of any suitable design
or material, but preferably, as in this design, of cast metal, of which A A A A
is the main frame, cast in sections and securely fastened together. For addi-
tional strength and to be of support for some of the working parts the cross-
pieces (A1 A2) are embodied in the main frame. Also as supports for the bear-
ings of different journals the brackets (a a a a a) are embodied in the frame-
work, with a little modification, especially for the manufacture of any particular-
sized box, all the working parts may be directly embodied; but for convenience
of adjustment and to adapt it for forming different-sized boxes the auxiliary
frame B, is provided and also the auxiliary frame C, both of which support
important parts and with other adjustments will be more fully explained
hereinafter,.
In the upper part of the machine, at D, is the magazine for the reception of
the side blanks, in. which are to be piled the side blanks, one upon the other,
with their grooves downward, their edges, which are to enwrap the bottom
blanks, forward, and the center V-shaped groove in line with the apex of the
forming-block.
To form the magazine D, I use here the bottom plate (:), the back piece (d),
which is fastened permanently in the frame of the machine and has an opening
between it and the bottom plate sufficient for the reciprocating of the plunger J,
and the adjustable magazine-front (D'), Figs. 24 and 25, and the end stop,
Fig. 23.
The magazine-front (DI) is hung suspended in guides from the top of the
main frame by means of the screws (88), which fit in corresponding threads
in the cross-piece (77). By means of these screws the opening between the
magazine-front and the bottom plate (d) can be adjusted to admit of the passage
of one and but one blank at a time. The horizontal projections (d) are guides
to prevent the slide blanks riding the plunger as they pass from the magazine.
The plate (do) is adjustable to correspond with the width of the side blanks
by means of the horizontal projections (11) and (712). (1) passes through
(d) and is fastened in any position. by the eye-headed bolt (13), through the
eye of which (1) passes. ((711) is fastened by tightening the nut. (4). The
projection (2) has a double. office-first, to prevent the lopping of one end of
the plate (0), and thus conflict with the reciprocating of the plunger J, which
without some precaution would be liable to occur, and, second, to, prevent the
side blanks riding the plunger. J.
() is an end stop capable of longitudinal adjustment by means of the bent
shaft (), which passes through the frame, and is fastened at any position,
according to the length of the side blanks.
The bottom of the magazine (d³) is provided with openings through which
pass the glue-brushes, and to afford adjustment for the different positions of the
glue-brushes for different work (5) is provided with cross-sections (de), which may
be slide backward and forward in slots provided for the same as the work may
require. Immediately underneath this magazine is the glue-magazine E, which

page_text: is a plain tank made of sheet-copper or any suitable material. Through this,
fitted in suitable bearings, passes the shaft (c). On this shaft at proper intervals
(which are changeable) are the brush-wheels (el) for gluing the different corners
of the boxes. These are revolved with ratchet and pawl (3) through the con-
necting-rod (et).
Figs. 18 and 19 are sectional views of one of the brush-wheels, showing in
Fig. 19 the brushes in position. It consists of two disks, one or both of which
are grooved for the reception of the brushes (e), which are common glue-brushes.
When the brushes are placed in position and the two disks clamped together.
they become as spokes in a hub. The reason for placing them at intervals and
the use of the ratchet is apparent when it is considered that in sliding-cover
boxes the side blanks have a groove in which the cover slides, and if this groove
be filled with glue it would conflict with the passage of the cover. It is also
apparent that as the crank (e³) is driven by an extension of the crank-pin (3),
it may be set so as to make the turn of the shaft (e) at exact intervals, and can
bring up a set of brushes, as the side blank is leaving the machine do the work
of applying glue to the various corner-joints and pass down out of the way just
before the groove for the sliding cover is reached.
"
Underneath the two receptacles just described is a third receptacle, for the
bottom blanks, which will be known hereinafter as the "bottom magazine F.
.It consists of a V-shaped trough or rack haying its bottom the longitudinal
groove or opening (f). Also near each end the pulleys (f2 f²), in which and
around which passes the cord (f), which has at one extremity the weight (f),
at the other the handle (f), and at proper position midway is fastened the
follower (f). In this magazine are placed the prepared bottom blanks, resting
upon one corner and having their faces which are to be bottommost in the boxes
facing the front of the machine. The office of the follower is to provide a pres-
sure against the bottom to force them forward as they are fed out by the bottom
plunger.
The bottom plunger G reciprocates in guides in the main frame immediately
in front of the bottom magazine.. It has a recess with a V-shaped base, which
in its lower position comes slightly below the V-shaped trough of the bottom
magazine. This recess, being slightly shallower than the thickness of the
bottom blanks, receives but one at a time. This plunger is fitted to work freely
in prepared guides and is forced upward by means of the cam H on the cam-
shaft H¹. After the cam has passed from under the plunger it drops by its own
weight, having delivered its bottom blank between the face-plate () and the
bottom support M and is replenished with another bottom from the bottom
magazine.
At the bottom of the magazine for side blanks is the plunger J, which is
reciprocated and regulated in its throw by the pitman-rods (1), which are con-
structed in two parts and are capable of being expanded and contracted by a
right-and-left-hand threaded screw-coupling (7) and the cranks (2), having
various crank-pin holes for the crank-pin (3). This plunger is so arranged
with openings as not to conflict with the glue-brushes, the middle opening (1)
being permanent, while the others may be adjusted to correspond with the
position of the glue-brushes by sliding to the right or the left, the sliding pro-
jections (5). To guide the plunger J, I provide the flange-like projection (1),
which fits in the groove shown in Fig. 21. With these adjustments the plunger
can be so set as with its forward movement to force the side blanks each in turn
before it to such a position on the forming-block that one of its edges shall
overhang the face of the forming-block a sufficient distance to receive and inclose
a bottom blank. After the parts have been placed in position by their respective
plungers the forming of the box is completed by the forming-head K, in con-
junction with. the clenching-block N..
.
The forming-head is reciprocated in guides in the main frame by means of
the crank-wheel () on the main shaft above and the connecting-rod (). The

page_text: essential features of the forming-head are the right-angled inverted-V-shaped
recess () and the forming-clappers K¹ K¹, which hang suspended from the
side faces of the above recesses and are hinged so as to swing in a circular form.
These forming-clappers have also right-angled inverted-V-shaped recesses,
formed by the fork-like projections (4). With a side blank in position it
is obvious then that if the forming-head be pressed downward the side strip will
be bent between the upper walls of the forming-head and the forming-block
until the side walls of the center V-groove in the strip meet, and these form
one of the miter-corners of the box. The other two miter-corners are formed
by the forming-clappers. As these forming-clappers come in contact with the
strip the projection (k), which comes in contact with the solid and unbendable
portion of the strip, is forced backward, which brings (4) forward and bends the
strip until the walls of the V-grooves meet, and also brings the two locking-
corner grooved ends of the strip together below. (See Fig. 3.)
As the forming-block is a projection from the forming-block frame, which is
fitted to guides in the main frame, it is capable of being depressed by the
forming-head in its downward movement to force the locking-corner ends of the
box together in the V-shaped recess of the clenching-block. The forming-block
is then returned to its upper position by means of the weighted levers (i¹¹).
To provide a support that will receive the bottom blanks from the bottom
plunger and retain them in position against the face-plate of the forming-block
while they are being enclosed in a side blank, the bottom support M is provided
with extending arms (mm) and the hinged base (m²), which is fastened to the
cross-piece A. The spring (m²) gives tension to the cord (m³) for raising the
support to allow the removal of the completed boxes. This cord may be fastened
to the forming-head or connecting-rod above. When the box is formed and
the bottom-support arms raised, the box is removed from the forming-block by
the box-extractor L. This consists of the extending arms (¹), the hinged
support (2), the spring (13), the cord (4), which is fastened to the front of the
extending arms and passes underneath the hinged support to the trip (5). This
trip may be made in various ways, but is here a strip of metal, which is fitted to
reciprocate in a groove in the cross-piece of the frame, and has an upper extend-
ing projection, so as to come in contact with and be forced backward by the
plunger J in its backward stroke.
As it is desireable to have the V-shaped recess of the clenching-block N
extend under the entire locking-corner and also not to conflict with the move-
ments of the plunger G, the clenching-block N is fitted in the slot (b). To be
readily pushed back by the plunger, its face is made on an incline, so as to over-
hang at the upper part. The clenching-block is forced forward by the spring
(2), and the distance forward is regulated by the screw (»), which passes through
the lug ().
Thus far the parts have been mostly described without reference to adjustment,
which are unnecessary for the construction of a machine to put together any
particular-sized box, but which adjustments it is readily realized, are very
important in a machine adapted to a variety of styles and sizes of boxes. So
I have provided means of accomplishing these results and will now describe the
various adjustments.
As two of the corners of each box formed-namely, the center miter-corner and
the locking-corner-must each be in line with the center of all the V and in-
verted-V-shaped recesses of all of these parts, (the forming-clappers excepted,)
it is readily apparent that these parts must be more compactly situated for small
boxes than for larger ones. To accomplish this difference in position, the
auxiliary frame B, Fig. 10, is provided for raising and lowering the clenching-
block and the auxiliary frame C for raising and lowering the bottom magazine.
These frames are fitted by lugs (72 72) and (3) to raise and lower in guides in
main frame by means of the screws B¹ B. These are operated, as is common in
machinery, by means of bevel-gears (64 64), the shaft (7); and hand-wheel (16).

page_text: As the top of the bottom magazine is really formed in the frame B, it is
apparent that the trough, which is described as the bottom magazine, must in
order to retain its proper position raise and lower twice as fast as the frame B.
Therefore the screw B₁ is provided with threads at its upper portion for raising
the frame B, measuring twice the number of threads to the inch corresponding
to the lug (63) as those at the bottom corresponding to the frame C.
As the position of the V-shaped recess in the bottom plunger should corre-
spond to that of the bottom magazine, the inside framework (9) Fig. 30, is
provided, which may be raised or lowered in the guides (g² g²) by the screw (9),
which at its upper end is fitted to lugs in (g), while the lower end corresponds
to threads through the cross-piece (g). In the forming-head, Fig. 3, this longi-
tudinal adjustment is provided for by hanging the forming-clappers in forming-
clapper frames (5, these being provided with lugs (k), which correspond with
guiding-grooves in the circular frame (10) of the forming-head. As the guiding-
grooves are parallel with the respective faces of the head, it is apparent that the
change of position is accomplished by simply sliding the clapper-frame upward
or downward. To assist in this, the screws (1) are provided, which pass
through the base of the forming-clapper frames and are hung in swivels (1212).
These swivels are formed by the head end of the screw (1) fitting in the swivel
or flange grooved slots. (Shown in Figs. 8 and 9.) This slotted part, Figs. 8
and 9, is fitted to rest in the crotch of the circular frame (10). The flanges (s s),
which hold this part in position, occupy a similar position above in the flange-
grooves of (410) as do the lugs (7) of the forming-clapper frames below.
As referred to, two of the opposite corners of each box formed must be in line
with the respective forming parts of the machine. By referring to Fig. 34 it
will be seen that in a square if a line be drawn from one corner to the other the
other two corners are in a horizontal line, and the angle formed by this line and
the sides of the square are equal; but in an oblong rectangle the other opposite
corners are not in the same horizontal line and the angle 1 is greater than the
angle 2. It is apparent then that the correct position of the different parts is
to have the side faces of their respective V or inverted-V-shaped recesses tilted
to correspond with the respective angles of the box. I accomplish this in all
the parts in practically the same way—namely, by providing an inside circular
part that revolves in a corresponding circular opening in the outside part-and
as the center of each circular part is the bottom of the V or the apex of the
inverted V of each part, it is apparent that these parts can be tilted to any
desired angle without changing position of the base of the V or the apex of the
inverted V's of any of the parts, thus meeting the requirements. In the form-
ing-head the circular part is made in sections, the inside section (10) being larger
than the outside section (13). These parts are fastened together by screws (15),
and each section is fitted to corresponding sections of the outside part (1), having
corresponding circular openings and being fastened together with screws (1016).
With all parts in position and screws tightened the head will become as a solid
head; but when loosened the inside circular parts may be revolved to bring the
V-shaped recess to any position required.
The circular adjustment of the bottom magazine is similar to that of the
forming-head. The circular part (f) is fastened to the bottom magazine and is
fitted to the circular openings (8) of the frame C. In the bottom plunger this
adjustment consists of the circular part (9), which is fitted to. revolve in the
circular opening of the movable frame (g) and may be tilted to any desired
angle and fastened with the nut (g). In the forming-block this adjustment is
found in the circular part (2), which is fitted to revolve in the circular opening
of the forming-block (2). By loosening the screws () the block may be tilted
to any angle, and by tightening the screws the block is clamped rigid in any
position. As it is only necessary that the face-plate (2) against which the bottom
rests should approximate the size of the box to be formed, the forming-block
consists here of a horizontal-bar projection of the circular part (1), against the

page_text: end of which may be fastened by means of the screw (¹) any size face-plate that
may be required.
In the clenching-block, Figs. 13 and 14, the circular adjustment is provided
for by the circular opening of the lower part (n), in which is fitted the circular
parts of the upper part (n), which has at its base a flange-like projection (n),
which is fitted in a corresponding flange-groove in the lower part, and the upper
part is fastened in position in the lower part by the countersunken set-screw (n³).
Not previously described is the steam-jacket E, which enwraps the glue-tank
on two sides, the bottom and one end, its office being to form a support for the
glue-tank and keep the glue hot therein. It is a hollow jacket made of suitable
material. The side walls are shown at (c), Fig. 15. One end has an opening in
which the glue-tank may be inserted and removed at will and has an inlet and
an outlet steam-pipe E E, through which the steam passes..
The operation of the machine is quite simple. The parts are first adjusted to
the size of the boxes which it is desired to form, the magazine for side blanks
filled in proper position with prepared side blanks, the magazine for bottom
blanks is filled with prepared bottom blanks, the glue-tank with glue in liquid
form, steam is turned into the steam-jacket, and power is applied to the driving-
pulley P. As power is applied direct to the crank-wheel that drives the forming-
head and through positive bevel-gears to drive the other parts, it is evident that
cach part must do its work in exact time and when properly set will run in
perfect harmony with all the other parts. The two plungers place in position
around the forming-block at about the same time their respective parts of a box,
the side blank having its corner grooves filled with glue as it leaves the magazine.
The bottom support retains the bottom in position, the plungers recede, the
clenching-block springs forward, the forming-head is driven downward, bending
the center groove of the side blank to form a miter-corner, and, there being
greater pressure against the forked projection (3) than the projection (4) of
the forming-clapper, (3) is forced backward, bringing (4) forward and bending
the other V-grooves to form miter-joints. The forming-head now comes in
contact with the forming-block and forces it downward to clench the locking-
corner joint in the recess of the clenching-block. As the forming-head recedes
the forming-block is raised by the weighted levers, the bottom support is lifted
by the cord, and the completed box is removed by the extractor and all is ready
to repeat the operation.
Having now particularly described the nature of my said invention, and in
what manner the same is to be performed, I declare that what I claim is:-
1. In a box-forming machine in combination with a forming-head, a forming-
block, a clenching-block, magazines for the reception of side and bottom blanks,
and plungers for placing the respective side and bottom blanks in position for
being formed into boxes, substantially as described.
2. In a box-forming machine in combination with a forming-head, a forming-
block, a clenching-block, a magazine for the reception of the bottom blanks, and
a plunger for feeding bottom blanks one at a time from said magazine, substan-
tially as described
3. In a box-forming machine in combination with a forming-head, a forming-
block, a clenching-block, a plunger for feeding bottom blanks one at a time
from the magazine for bottom blanks, a magazine for bottom blanks, and a
follower in said magazine, substantially as described.
4. In a box-forming machine in combination with forming-head, a forming-
block, a clenching-block, a plunger for feeding one at a time bottom blanks
from the magazine for bottom blanks, a follower in said magazine, and the
means of forcing the bottom blanks forward as they are fed out of said magazine,
substantially as described and for the reason set forth.
5. In a box-forming machine in combination with a forming-head, a forming,

page_text: block, a clenching-block, a plunger for bottom blanks guides in which said
plunger reciprocates, and a cam for raising said plunger and allowing a quick
return of the same, substantially as described.
6. In a box-forming machine in combination with a forming-head, a forming-
block, a clenching-block, a plunger for feeding bottom blanks from the magazine
for bottom blanks, a magazine for bottom blanks and means of adjusting the
height of said magazine, substantially as described.
7. In a box-forming machine, in combination with a folding mechanism, a
plunger for feeding bottom blanks from a magazine for bottom blanks, a maga-
zine for bottom blanks, the circular parts (7) which project from a magazine for
bottom blanks, the circular openings (8), which are situated on a suitable
base for the support of a bottom magazine, and means of adjusting the circular
parts (f) in the circular openings (78), substantially as described and for the
reasons set forth..
8. In a box-forming machine in combination, a forming-head, a forming-
block, a clenching-block, a bottom support, magazines for the reception of side
and bottom blanks, and plungers for placing the side and bottom blanks in
position to be formed into boxes, substantially as described.
9. In a box-forming machine, in combination, a forming-head, a forming-
block, a clenching-block, a support for retaining the bottom blanks against the
face of the forming-block while the boxes are being formed, a magazine for
side blanks, a magazine for bottom blanks, a plunger for placing bottom blanks
in position, and an extractor for removing the completed boxes from the forming-
block, substantially as described.
10. In a box-forming machine in combination, a forming-head, a forming-
block, a clenching-block, and a plunger for placing bottom blanks in position
against the forming-block, substantially as described.
11. In a box-forming machine in combination, a forming-head, a forming-
block, a clenching-block, a plunger for placing bottom blanks against the form-
ing-block, a recess in said plunger for the reception of the bottom blanks one
at a time, and means of adjusting the vertical position of said recess, substan-
tially as described and for the reasons set forth.
12. In a box-forming machine, in combination, a forming-head, a forming-
block, a clenching-block, a plunger for placing bottom blanks against the form-
ing-block, the circular part (g), of said plunger, means of fitting said circular
part (g) to said plunger, and means of adjusting said circular part substantially
as described and for the reasons set forth.
13. In a box-forming machine in combination a magazine and a plunger for
side blanks, a magazine and a plunger for bottom blanks, a forming-head, a
forming-block, a clenching-block, the recess (b), in which the clenching-block is
fitted, the lug (*) the screw (n³) and the spring (n²), substantially as described
and for the reasons set forth.
14. In a box-forming machine in combination with a forming-head, a forming-
block, a clenching-block, a magazine for bottom blanks, a folower, a cord, and
a weight, in connection with said magazine, a plunger for feeding bottom blanks
from said magazine, means of reciprocating said plunger and means of retaining
bottom blanks in position while being formed into boxes, substantially as
described.
15. In a box-forming machine in combination, magazines for side and bottom
blanks, plungers for side and bottom blanks, a forming-head, a forming-block, a
clenching-block mounted on the auxiliary frame B, the auxiliary frame B, and
means of adjusting said frame, to secure for the clenching-block a variety of
vertical positions, substantially as described and for the reasons set forth.
16. In a box-forming machine in combination, a forming-head, a forming-
block, a clenching-block, the lower part (n³) and the upper part (n") of said
clenching-block, means of fitting said upper part to said lower part and means

page_text: extending longitudinally and journaled in appropriate bearings in said tank
and brushes upon said shaft which apply glue or other adhesive material to the
side blanks, substantially as described and, for the reasons set forth.
30. In a box-forming machine, in combination, a forming-head, a forming-
block, a clenching-block, a magazine and feeding mechanism for side blanks,
a tank for the reception of glue or other adhesive material, a shaft penetrating
one end and extending longitudinally to, the other end of said tank, proper
bearings for said shaft, brushes which apply glue to the said blanks, means of
fitting said brushes to said shaft, and means of adjusting said brushes on said
shaft, substantially as described and for the reasons set forth.
31. In a box-forming machine, in combination, a forming-head, a forming-
block, a clenching-block, a magazine and feeding mechanism for side blanks, a
glue tank, a shaft journaled to revolve in said tank, brush-wheels on said shaft;
and means of fixing at proper intervals in said wheels brushes, which apply glue
to the side blanks, substantially as described and for the reasons set forth.
32. In a box-forming machine, in combination, a forming-head, a forming-
block, a clenching-block, a magazine and feeding mechanism for side blanks, a
tank for the reception of glue or other adhesive material, a shaft which penetrates
said tank, appropriate bearings for said shaft, brushes which apply glue or other
adhesive material to the side blanks, means of attaching said brushes to said shaft,
means of spacing brushes- longitudinally on said shaft, and means of spacing.
brushes at intervals around said shaft, and means of revolving said shaft, sub-
stantially as described and for reasons set forth.
33. In a box-forming machine in combination, a magazine for side blanks, a
bottom plate for said magazine, openings in said bottom plate for the passage
of glue-brushes, a tank for the reception of glue or other adhesive material, a
shaft in said tank and brushes on said shaft, substantially as described.
34. In a box-forming machine in combination, a magazine for side blanks, a
bottom plate for said magazine, openings in said bottom plate, means of adjust-
ing said openings, a tank for the reception of glue or other adhesive material,
and means of applying said adhesive material in the V-grooves and locking-
corner grooves of the side blanks, substantially as described.
35. In a box-forming machine, in combination, a forming-head, a forming-
block, a clenching-block, a magazine and feeding mechanism for side blanks, a
tank for the reception of glue or other adhesive material, means of applying
adhesive material to the side blanks, and means of heating said adhesive material,
substantially as described.
36. In a box-forming machine, in combination, a forming-head, a forming-
block, a clenching-block, a magazine and feeding mechanism for side blanks,
the end stop (3) of said magazine, means of adjusting said end stop, a tank for
the reception of glue or other adhesive material and means of applying said
adhesive material to the side blanks, substantially as described.
37. In a box-forming machine in combination with a forming-head, a forming-.
block, a clenching-block, a plunger for side blanks, a flange-like projection
from the bottom of said plunger, and the guiding-groove in A2, substantially
as described and for the reason set forth..
38. In a box-forming machine in combination with a forming-head, a form-
ing-block, a clenching-block, a magazine for side blanks, a plunger for side
blanks, and the reciprocating mechanism thereof, substantially as described.
39. In a box-forming machine in combination with a forming-head, a form-
ing-block, a clenching-block, a magazine for side blanks, a plunger for side
blanks, and means of adjusting the throw of said plunger, substantially as
described.

page_text: of adjusting said upper part, substantially as described and for the reasons set
forth.
17. In a box-forming machine in combination, a forming-head, a. forming-
block, a clenching-block mounted on the auxiliary frame B, a magazine for
bottom blanks mounted on the auxiliary frame C, the auxiliary frames B and .C
and means of adjusting said auxiliary frames, substantially as described.
18. In a box-forming machine in combination, a forming-head, a forming-
block, a clenching-block mounted on the auxiliary frame B, the auxiliary
frame B, a magazine for bottom blanks, mounted on the auxiliary frame C, the
auxiliary frame C, the screws B¹, and means of adjusting the frames B and C,
by means of the screws B', substantially as described and for the reasons set
forth.
19. In a box-forming machine in combination, a forming-head, a clenching-
block, a forming-block, removable face-plates to said forming-block whereby
face-plates of different sizes may be interchanged, substantially as described.
20. In a box-forming machine in combination, a forming-head, a clenching-
block, a forming-block, a forming-block frame, and means of attaching the
forming-block to the forming-block frame so as to secure the tilting adjustment
of the forming-block, substantially as described.
21. In a box-forming machine in combination, a magazine for side blanks, a
magazine for bottom blanks, a plunger for feeding side blanks, a plunger for
feeding bottom blanks, a clenching-block, a forming-block, a forming-head, the
forming-clapper frames of said forming-head and the forming-clappers thereof,
substantially as described.
22. In a box-forming machine in combination, magazines for side and bottom
blanks, plungers for placing the side and bottom blanks in position, a clenching-
block, a forming-block, a forming-head, the forming-clappers and forming-
clapper frames of said forming-head, and the screws for adjusting said forming-
clapper frames, substantially as described.
23. In a box-forming machine in combination, a forming-block, a clenching-
block, a forming-head, and means of tilting the side walls of the inverted-V-
shaped recess (2), of said forming-head without altering the position of the apex
of said inverted-V-shaped recess, substantially as described and for the reason
set forth.
24. In a box-forming machine in combination, a forming-head, a forming-
block, a clenching-block, a magazine and a plunger for side blanks, a magazine
and a plunger for bottom blanks, and a box-extractor, substantially as described.
25. In a box-extractor of a box-forming machine in combination with a
folding mechanism, the forming-block frame, the hinged support the extending
arms, the cord and the spring, substantially as described.
26. In a box-extractor of a box-forming machine in combination with folding
mechanism a forming-block frame, a hinged support. the extending arms, the
cords, the spring, the trip at the rear of the plunger J and the plunger J, sub-
stantially as described.
27. In combination in a box-forming machine a forming-head, a forming-
block, a clenching-block, a magazine for bottom blanks, a plunger for conveying.
bottom blanks to the forming-block, and a bottom support for retaining the
bottom blanks against the forming-block whilst the box is being formed, sub-
stantially as described.
28. In combination in a box-forming machine, a forming-head, a forming-
block, a clenching-block, a magazine for bottom blanks, a plunger for conveying.
bottom blanks to the forming-block, a bottom support for retaining bottom
blanks against the forming-block while the box is being formed and means of
reciprocating said bottom support, substantially as described.
29. In a box-forming machine, in combination with a forming-head, a form-
ing-block, a clenching-block, a magazine for side blanks, mechanism for feeding
side blanks, a tank for the reception of glue or other adhesive material, a shaft