Pieces and Applying the same to Paper Boxes and Box Covers.
Year: 1887

page_text: Pieces and Applying the same to Paper Boxes and Box Covers.
1, HENRY HARRIS LAKE, of the firm of Haseltine, Lake & Co. Patent Agents,
Southampton Buildings, in the County of Middlesex 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 mechanism for staying the angles of paper boxes and box
covers, and the purpose thereof is to provide an apparatus whereby the metallic stays
may be formed from a continuous strand or strip, which is fed to the forming devices,
cut off at the proper length and bent, driven and clinched by automatic devices.
It is my purpose also to so construct and organize the mechanism that the stay
is not only formed so as to embrace the angle of the box, but the clinching ends are
driven through, the paper of the box at a right angle thereto, whereby all danger of
marring the same is avoided and the stay is neatly, strongly and durably attached.
It is my further purpose to provide means whereby the clinched ends of the stay
may at their extremities be embedded in the inner face of the box, to avoid the
presence of sharp points, or angular projections, which are liable to catch upon
surrounding articles.
It is my further purpose to provide automatic devices whereby the wire may
be fed to the machine under a proper tension, cut off at the required point and
accurately held in central engagement with the forming die, during the process
of bending it into form.
It is my further purpose to combine with the forming mechanism a retracting
anvil, having an inclined extremity of the required angularity to combine therewith
a support for the box having elastic arms provided with perforating and wire guiding

page_text: extremities, a forming and guiding die and means for clinching the ends of the stay
upon the inner faces of the box.
It is my purpose also to provide simple and easily applied devices whereby
the machine may be used with boxes of various depth; to simplify and improve the
construction and operation of mechanism of this class and to provide an apparatus
capable of rapid operation and of doing strong and finished work.
My invention consists in certain constructions and combinations of parts for
accomplishing these purposes in machines of this class and also in improvements
whereby a simple and accurate adjustment is given to the angular shell supporting
the box to enable it to accommodate stock of varying thickness, a reciprocating
movement being given to the dies and die carrier in a direction opposite to the
vibration of the box support.
The invention also consists in certain improvements in the construction and
arrangement of the piercing prongs, whereby the openings are formed for the stays
and the pronged ends of the latter are directed, such novel construction contemplating
the constant renewal of said prongs as they are worn away by use.
My invention also consists in a simple and novel brake to govern the action
of those devices whereby the wire is automatically supplied to the machine, the
purpose thereof being to prevent the momentum of the machine from causing
too great a feed to the wire, and in certain novel features of construction whereby
the several improvements referred to may be incorporated.
In the accompanying drawings.
Figure 1 is a side elevation of the machine.
Figure 1 is a perspective view showing a box with corner stays attached by said
machine.
Figure 2 is a front elevation of the machine shown in Figure 1.
Figure 2 is a detail edge elevation of the feed wheels detached.
Figure 2 is a detail side elevation of the hook guide for the wire detached.
Figure 3 is a partial vertical section of figure 2, taken through the apex of the
forming die, from front to rear.
Figure 4 is a detail perspective of the face plate removed.
Figure 5 is a similar view of the cutter and of the forming die, the latter carrying
the wire holding and centering device.
Figure 6 is a perspective of the retracting anvil detached.
Figure 7 is a perspective of the detachable body plates for adapting the machine
to boxes of varying depth.
Figure 8 is a partial front view of the machine, the face plate being removed.
Figure 9 is a similar view the parts being in a different position.
Figure 10 is a similar view, showing a further advance in the operation of forming
the stay.
Figure 11 is a similar view showing the last stage in the operation of the stay
forming, driving and clinching mechanism.
Figure 12 is a face elevation of a machine containing certain modified features.
Figure 13 is a vertical section of figure 12, from front to rear the section plane
passing through the angle of the box support.
Figure 14 is a partial section in a plane parallel to that of figure 13.
Figure 15 is a detail perspective of the box support.
Figure 16 is a vertical transverse section of the box support.
.
Figure 17 is a vertical section of one of the prong bearing plates, with its housing.
Figure 18 is a detail view showing a modified construction.
Figure 19 is a view of a portion of the machine frame showing the wire feed roll
and the split ring brake applied thereto.
Figure 20 is a partial rear elevation of the machine.
In the said drawings the reference numeral 1 designates any suitable support, upon
which is mounted the frame 2 of the machine, having bearings 3, for a cam shaft 4,
and bearings 5 for a lever shaft 6.

page_text: For the convenience of description I will in the following specification follow
the order of operation as nearly as may be, beginning with the devices for feeding
the wire and ending with the driving and clinching of the stay.
Upon the support 1, at the right hand (proper) of the machine, is placed a suitable
bearing for a reel 7, which carries a continuous strand of the metal 8, from which the
stays are formed. This material may be wire of suitable size, either round, half-round,
or flat, the latter being in some respects preferable. From the reel 7 the wire
is carried through a stretcher 9, which consists of a spiral coil of elastic wire centrally
mounted upon a support 10, and thence the wire passes under a guide book 11, (see
figures 2 and 2) to a feed roll 12, having a groove 13, in its periphery in which the
wire lies. Below this feed roll is a second roll, 14, having a rib or feather 15, which
presses the wire into the groove 13, and holds it firmly. These feed rolls are
geared together by pinions 16 and 17, and rotation is imparted thereto by a ratchet 15
upon the outer face of the roll 12. Upon the shaft 19 of said roll, is mounted
a rocking lever 20, actuated by a pitman 21, which is reciprocated by a lever 22
upon the lever shaft 6.
Upon one end of the rocking lever 20, which lies against the front face of the
ratchet 18, is pivoted a pawl 22, which takes into the teeth of the ratchet, said
teeth being of such number and size that, at each reciprocation of the pitman, the
ratchet is advanced one tooth, feeding the wire forward a distance equal to the
entire length of wire required for the formation of a single stay.
From the feed rolls the wire passes through an opening 24. figure 8, formed in a
rigid depending portion 25, of the face of the machine, cast upon the front of the
frame 2. Within the opening is placed a knife block 26, having its cutting edge
flush with the inner face of the part 25, and capable of adjustment to compensate
for wear, by means of a screw 27, tapped through a block 28, which is carried by a
plate 29, figure 2 screwed to the front of the piece 25.
The portion 25 together with a parallel casting 25, form ways within which the
stay forming mechanism, with its adjuncts, moves. This mechanism consists of a
forked die carrier and an independently operating die, moving therein, figure 5. The
former is provided with an arm 30, having a bifurcated bearing 31, to receive the eye
of a lever 32, by which it is raised and dropped. At the lower end of the arm are
parallel bars 33 and 34, of such width that their outer faces lie and slide against the
faces of the vertical casing formed by the part 25 and the parallel portion 25º,
figure 8. In the outer face of the arm 33 is set a knife 35, which reciprocates over the
knife edge 26 in the part 25. This knife is set in a recess 36, and is capable of slight
adjustment downward by means of a screw 37, to compensate for the wear caused by
use or by grinding up the edge.
The extremities of the arms 33 and 34, are bevelled off outwardly and the bevelled
portions, are slotted as shown at 38, figures 5 and 8. Immediately above the bevelled
faces the inner faces of these arms are provided with vertical channels 39, of such
depth as to receive the ends of the stay which are to enter the box.
Between the arms 33 and 34 is formed a space within which is placed the forming
die, which consists of a plate 40, having an arm 41, figure 5, offset to one side to
allow it to rise alongside the arm 30 to engage with the actuating lever 42.
The
lower end of the plate 40 is notched at a right angle, and the notched edge is
grooved out to receive part of the body of the wire. In the plate 40 is formed
a central, vertical slot 43, which opens into the notch and in said slot is mounted
a block 44, having a toe 45 projecting downward. To the block is attached a rod 46,
extending upward and passing through an eye in a lug 47, upon the arm 41. The
end of the rod is provided with a head 48, to prevent the block 44 from passing
downward beyond the point shown in figure 5, and upon the rod is coiled a spring 49,
by the tension of which the block is normally thrown downward with force. The
function of this element will be pointed out hereafter.
Beneath the stay forming devices is arranged the anvil 50, figure 6, consisting of
a rectangular block 50, having an eye 51 at its rear end which receives a bearing

page_text: for a roller running in a cam groove formed in a disc on the shaft 4, by which the
necessary action is given. The outer end of the block is cut away to form the right
angled surface or anvil 50, having the vertex central and the angular surfaces equally
inclined on each side thereof, thereby bringing them into parallelism with the notched
end of the forming die 40. The extreme outer end of the anvil is bevelled off
to form a right angled incline 53, and the device is placed within a suitable slide
way in the machine, where it may lie horizontally, with the end 50. beneath the
forming die.
Directly beneath the anvil 50 is the box support 54. figures 3. 8. 9 etc. consisting
of a rectangular shell having support on the main frame figure 3, and arranged so
that one of its angles lies in the same vertical plane with the angle of the anvil 50,
whereby the adjacent sides are brought into parallelism with the angular faces of said
anvil. The latter is notched on its under side to lie down upon the box support,
though not in contact, a space being left for the insertion of the box, and by thus
causing the anvil to overlap the sides of the box support it will be seen that the two
bevelled faces 53 and 53° form, substantially, inclined continuations of the horizontal
faces of the anvil, intermediate the horizontal faces of the support.
In the same vertical plane with the forming die 40, is formed a slot 55, cut from
the vertex of the supporting shell 54, into each inclined face thereof figure 3. Upon
the outer faces of said shell, at the rear thereof, are mounted elastic plates 56 figure 1,
which clear the surfaces on which they are mounted by a space a little more than
equal to the thickness of the paper box, and are curved forward and upward until
their ends overhang the slots 55 at the point where the ends of the stay engage with
the box. The extremities of said plates are provided with prongs 57, bent toward the
inclined surfaces of the box support 54, at a right angle thereto. It will be seen
from figures 8 to 11, inclusive, that the free, pronged ends of these spring plates 56,
lie directly beneath the bevelled ends of the arms 33 and 34, the inwardly turned
prongs 57 meeting the angle between the bevelled ends and the inner vertical faces of
said arms.
Within the supporting shell 54 are placed the clinchers, consisting of blocks 58,
sliding between an angular guide plate 59 and bosses 60, formed on the inner faces
of the shell 54. The construction of the guide ways is such that the clincher
blocks 58 do not move in lines parallel with the inclined supporting faces of the
shell 54, but in lines which, if produced, would meet at an angle less than 90 degrees.
The consequence is that as each block moves toward the vertex of the supporting
angle of the shell, the end or angle lying in the slot 55, approaches toward the outer
face of the shell the purpose thereof being set forth hereafter.
Upon the upper angle of each block 58 is journalled a small friction roll 61, which
directly underlies the slot. 55. These rolls have their peripheries projecting far
enough in the slot so that when the blocks are retracted, or drawn downward, the
rolls will be slightly within the outer edge of the said slots and below the surface of
the box support. Each block is reciprocated by a pitman 62, pivoted to the end of
a yoke bar 63, which is lifted and dropped by a lever 64 figures 2 and 3, fulcrumed
beneath the machine and actuated by a cam 65, upon the cam shaft 4.
Having thus far described the construction and organization of the mechanism, I
will now point out the operation of said parts.
The parts being in the position shown in figure 1, with the anvil thrown out and
the forming die 40, and the carrier 33 and 34 lifted, the paper box 66 is placed upon
the supporting shell 54, as shown in figure 3, the portion that is to receive the stay
lying directly over the slot 55 in said shell. A flaring flange 67 upon the face
plate 68, assists in guiding the box into place so that it lies not only over the slots 55,
but beneath the anvil 50 and the prongs 57.
The machine being now set in motion, the feed wheels 12 and 14 project the wire
through the opening 24 and through the slots 38 in the arms 33 and 34 figure 8 and
between the knives 26 and 35.
Both the die carrier and the forming die now descend and the toe 45 upon the

page_text: block 44, first engages with the wire and holds it firmly upon the apex of the anvil 50.
The upper portion of the block 44 now comes in contact with the shoulder 41, and is
carried down by it, thus becoming essentially a part of the die former 40.
After this
engagement has taken place the wire is severed by the knives 35, 26, and the further
descent of the forming die 40, bends the wire down until it lies upon the angular
faces of the anvil, the block 44 remaining stationary as the die 40 descends, the latter
moving upon said block by means of the slot 43.
The forming die now rests upon the anvil, holding the wire in the channel in its
notched edge. The movement of the forming die is arrested at this point, but the
die carrier continues to move until the arms 33 and 34, have passed down upon each
side of the opposite, vertical faces of the anvil, thereby bending the ends of the
wire directly downward, in which position they lie in the channels 39, in said arms
figure 9.
At this point the anvil 50 begins to move toward the rear, until the stay, which is
still held in the end of the forming die, rides down the outer inclined end 53, of the
anvil, being forced by the positive movement of the forming die.
Prior to this
action, however, the arms 33 and 34 have been down upon the spring plates 56
pressing them down upon the sides of the paper box and driving their prongs 57
down nearly through the paper, in which position they are firmly held by the arrested
arms figure 9. As the anvil 50 retreats, the downwardly pointed ends of the stay,
which lie in the channels 39, of the arms 33 and 34, impinge upon the surfaces of
the prongs 57, and are thereby turned inward following the direction of said prongs,
whereby the ends of the stay enter the box at right angles to its surface. The
purpose of bevelling the front end of the anvil is to hold the points or legs of the
stay in a vertical position in the channels until the points have penetrated the paper.
Moreover, the paper having been pierced by the said prongs, the ends of the stay will
penetrate the paper through the openings formed by the prongs without difficulty and
will stand in the slots 55, the ends projecting inside the box at right angles to its sides
and the stay lying closely down upon the outside of the box figure 10.
The lever 64 figure 3 now operates, raising the yoke bar 63, and driving the
clinching block 58 upward and toward each other. The rolls 61 engage the projecting
ends of the stay and turn them down upon the inner faces of the box, and travel to
the extreme end of each clinched portion. As the cliuchers approach these ends,
they also approach or converge towards the inner faces of the box, in other words,
moving in lines which meet at the vertex of the box support, thereby burying the
clinched ends of the stay deeper in the paper, until as they pass off the ends of the
wire, the latter are embedded in the inner surface of the box, leaving a smooth surface
without projecting angles or points which may catch upon or mar, light and delicate
tissues contained in the box.
The die and die carrier now rise, the pronged plates 56 spring up, withdrawing the
prongs 57, and the box is shifted to bring the next comer upon the support.
In order to provide for staying boxes of varying depths, I propose to use filling
plates or blocks, Figure 7, which will extend the shell support 54 outward. In
applying these, I first place a thin block 71, just within the edge of the said shell,
where it is supported by hooks 72 Figure 10, engaging with dowels 73 on the block.
Immediately outside the block and forming part of the same is a thick block 74,
connected by a bolt 75, passing through both and into the base of the machine.
further extension is required, a second block 74" may be attached having a steadying
dowl 77, which engages with the adjacent block and secured by a bolt 78, passing
through the first and having its end lapped into the second, a threaded opening 79,
being provided therefor Figure 7.
If a
In Figures 12 to 20 inclusive, which contain the modified features of my invention,
the reference numeral designates the frame of the machine, in which the power
shaft 2 is supported, carrying three cam discs which I show in Figure 20, each disc
having one or more cam races, by which the several movements are communicated to
the operative elements.

page_text: In the central portion of the frame 1 is pivotally mounted a lever 7, carrying a
head 8, the latter having a slot 9, within which the clinchers are arranged. The said
slot, is cut transversely and interposed therein is a head 10, on which rests the
clincher arms 11, carried by a T-head 12, which is reciprocated by a lever 13,
deriving its movement from a cam 14 on the power shaft 2, Figure 13.
The lever 7 carrying the head 8, is fulcrumed upon a pivotal axis 17, which passes
through ears 18, on the lever arm. On the rear extremity of the latter is journalled
a friction wheel 19, on which the operating cam has bearing, and beneath the end of
the lever arm is placed a spring 20, by which the box support or shell 21, is dropped
after each effective action of the cam which acts upon the friction roll 19.
The head 8 carried by the forward extremity of the lever 7, has an angle of ninety
degrees, and upon the supporting portion of said head is mounted the shell or plate 21,
having fastening screws 22 and slots 23, upon each side of the angle, within which
slots the clinchers move, as hereinafter described.
Upon shoulders 24, lying upon each side of the angular head 8, and forming a
solid portion of the machine frame 1, are mounted plates 25, which project forward
over and in parallelism with the angular faces of the shell 21, the outer extremity of
each plate 25, having an extension 26, which partly overlies one of the slots 23. On
each of these plates 25, is mounted a block or housing 27, through which is formed a
cliannel or opening within which I introduce a steel wire 28, having its axis lying in
the same vertical plane with the slots 23. The extremity of each wire 28, is bent
downward at an angle to the plate 25, of ninety degrees, and the bent end or
prong 29, extends through a slot 30, formed in the supporting plate 25, and thence
said prong passes into one of the slots 23, formed in the shell support 21. The said
prong passes downward or inward, far enough to project beyond the outer, angular
surface of the shell 21, when the latter is raised and it is adjusted at such point that
the staple or stay when formed, will enter the stock at the points.or openings produced
by the said prongs. By means of the rigid attachment of the plates 25 the steel
wires 28 may be adjusted as circumstances may require, and each one is locked or
fastened at any desired point by a set screw 31.
It will readily be understood that in place of mounting the prong pieces 28 on a
rigid box supporting shell, as in Figures 1, to 11, I place them upon the angular
shoulders 24, which form part of the rigid frame of the machine, leaving the
supporting shell 21. free to vibrate.
On the shaft 2 which carries the cams operating the cylinders and vibrating the
shell support, is a cam disc 16, which operates the arm 15, by which the wire
feeding roll 36, is given an intermittent movement. Over the rear hub of this feed
roll is carried a metallic split ring 36º, lined upon its inner or concave surface, with
a leather cushion which has bearing upon the surface of the hub. A brake 37 is
placed also upon the periphery of one of the cam discs and the end of the metal
straps 37, has a diminished part 39, which passes through an aperture in the hed
plate of the machine, or an attachment to the machine frame, and upon its threaded
extremity below the said part is a set nut 40, through which the tension of the
brake upon the cam disc is varied. The function of the said brake is to keep
the motion of the machine steady and to prevent all possibility of back lash. The
split ring 36 on the feed roll 36, is tightened by a set screw to give the required
friction.
The general operation of the machine requires no special description. The die and
die carrier act in precisely the same manner as in Figures 1 to 11, and the anvil also
is operated in like manner. The distinguishing features of difference are the
mounting of the shell support upon a vibrating arm or lever; the provision of the
friction brake for the roll feeding the wire, and the mounting of the piercing and
guiding prongs on a rigid support, whereon the prongs are adjustable to compensate
for wear and tear produced by actual use.
In place of the construction shown in Figure 17 I may extend the housing 27 to
the end of the plate 25 and tap the set screws into it as shown in Figure 18, thereby

page_text: giving a convenient means for adjusting the prong. In some respects I regard this
arrangement as preferable.
Referring to Figures 1 to 11 inclusive, the arms 42, 32 and 22, which actuate-the
die, die carrier and wire feed, are operated by cam discs on the shaft 4. The end of
the arm 22 carries a friction roll running in a cam race 80 in the face of cam
disc 16. The arm 32 is operated by a race S1 in the next disc and in the opposite
face of the disce is another race 65, which operates the arm 64. The arm 42 is moved
by the cam race S0 in a third disc in which a race 52 is also formed for the roll on
the end of the anvil 50ª.
In the modified forms in Figures 12 to 19 the construction and arrangement are
very similar and need no specific description.
Having now particularly and ascertained the nature of my said invention and in
what manner the same is to be performed as communicated to me by my foreign
correspondent I declare that what I claim is :-
First. In a machine for staying boxes the combination with wire feeding rolls of a
stretcher composed of a wire coil having central support through which the wire passes
substantially as described.
Second. The combination with rolls feeding a continuous wire, of a frame having a
knife lying in an opening for the wire, a forked die carrier moving in the frame and
having a knife, a forming die moving within the fork of the die carrier and having a
rectangular notch in its end with a groove in the edge, a retracting rectangular anvil
below a box support beneath the anvil and elastic plates mounted on said support said
plates having pronged ends lying a little above and in the vertical plane of the
openings in the box support which receive the ends of the wire stays, substantially as
described.
Third. The combination with a die carrier-reciprocating in a vertical head and
having parallel arms containing vertical slots in their inner faces, of a forming die
moving between said arms, said die having a rectangular notch in its lower end and a
groove in the notched edge, a box support having surfaces parallel with the channelled
edges of the forming die, an anvil having two inclined faces parallel with the surface
of the box support, said anvil being notched upon its under side to bring the extremities
of the inclined faces in close proximity to the anvil and means substantially as described
for retracting said anvil.
Fourth. The combination with a die carrier having parallel inwardly channelled
arms, of a forming die moving between said arms and provided with a notch in its
lower end, the notched edges being grooved, an anvil having angular faces parallel
with the grooved edges of the die, and a stationary block centrally mounted in a slot
in said die, substantially as described.
Fifth. The combination with a forming die having its channelled end edges meeting
at a right angle, of parallel arms having their ends bevelled off to form a right angle
with each other, said arms enclosing said die and moving upon it, an anvil having
two inclined faces parallel with the end edges of the die, and provided with a
downwardly inclined, angular end, a box support beneath the anvil, elastic plates
mounted upon the faces of said support and having pronged ends lying in the plane
of the openings which receive the ends of the stay and beneath the bevelled ends of
the parallel arms and means substantially as described for reciprocating the said anvil
horizontally.
Sixth. The combination with the descending forming die and the inwardly
channelled arms moving with and upon said die and having outwardly bevelled ends,
of a reciprocating horizontal anvil having an inclined end, a support over which said
anvil moves having slots in its inclined faces, spring plates having prongs which
overlie said slots, and clinching devices, such substantially as described, moving within
the box support, for the purposes set forth.
Seventh. The combination with the stay forming mechanism, substantially as
described, of a box support, spring plates having perforating and guiding, inwardly.

page_text: turned prongs, which normally lie above the slotted portions of the support, and bevel
called arms forming part of the stay forming mechanism and having channels in their
inner faces, said channels having their lower open ends lying above and upon the
surfaces of the inwardly turned prongs, substantially as described.
Eighth. The combination with the stay forming and driving mechanism, sub-
stantially as set forth, of a slotted supporting shell for the box clinching devices, such
substantially as described, moving in ways arranged inside said shell and in lines which
converge towards the supporting surfaces and meet at the vertex of the box support or
shell, for the purposes set forth.
Ninth. The combination with the stay forming mechanism, substantially as set
forth, of a slotted, angular box support, clinching blocks moving within said support,
rolls upon the angles of said blocks, and weighs within which the latter move, said
ways being inclined toward each other at an angle less than the angle of the support,
substantially as described.
Tenth. The combination with the supporting shell of detachable and attachable
blocks, one of which lies within the shell and is connected therewith by dowels engaging
with hooks upon the shell and bolts passing through the same and into the machine
frame for supporting the outer blocks, substantially as described.
Eleventh. The combination with the face plate having a notched end and provided
upon its inner face with a block at the apex of the notch, of a forming die having a
notched end and provided with a vertical slot opening at the apex of said notch,
a block moving in said slot, a spring by which said block is normally pressed down, a
rod within the spring moving in a lug on the die plate, and an angular horizontally
reciprocating anvil beneath the die, substantially as described.
Twelfth. The combination with the head of the machine having an opening for the
wire, of a knife lying in said opening, a die carrier having paralled inwardly channelled
arms, bevelled outwardly at their ends and provided with slots in the bevelled ends,
said slots lying in the path of the wire, a forming die having an.angular notch in the
end and moving between the arms and the die carrier, an anvil having an angular
face and an inclined angular end, a spring pressed holding block moving in the die
plate, a box support beneath the anvil, plates having perforating and guiding prongs,
clinching devices within the box support, and means substantially as set forth, for
reciprocating the anvil horizontally.
Thirteenth. The combination with a horizontally reciprocating anvil having its
outer end bevelled to the form of the stay and inclined downward to the plane of the
box support, or nearly so, of a die former having vertical motion above the anvil and
having its notched stay forming end grooved to receive and hold the ends of the. stay
in a vertical position as they enter the box substantially as described.
Fourteenth. In a machine for staying boxes, the combination with wire feeding
rolls, and with the mechanism by which said rolls are actuated, of a friction brake
composed of a metal strap having a friction cushion which lines said strap, and means
for varying the tension of the same substantially as described.
Fifteenth. The combination with the staple forming and clinching mechanism
substantially as described, of an angular shell upon which the box is supported and
means for vibrating said shell toward and from the stay forming dies substantially as
described.
Sixteenth. The combination with the wire feeding mechanism and the dies whereby
the wire is formed into stays, of a vibrating, angular shell whereby the box is sup-
ported, supporting plates carried by the rigid parts of the machine frame and adjustable
prongs mounted in said supporting plates whereby the apertures are formed in the
stock and the ends of the stays guided, substantially as described.
Seventeenth. The combination with the vibrating shell support and the can
operating its carrying lever, of rigid supporting plates having blocks, pronged wires
mounted therein and having their pointed ends projecting through openings in said
supporting plates and into slots in the shell support, and set screws tapped through
said blocks, and fastening said. wires in place, substantially as described.

page_text: Eighteenth. The combination with a wire feeding roll or rolls of a cam actuating
the same, a friction brake having a flexible cushion bearing upon said cam, and means
for varying the frictional contact thereof, substantially as described.
Nineteenth. The combination with the power shaft carrying the cams by which
the operative parts are moved, of a vibrating lever fulcrumed upon the machine
frame, a cam actuating said lever, an annular shell support carried by said lever, and
clinching devices within said shell to upset the ends of the metallic stays, substantially
as described.
Twentieth. The combination with the vibrating shell support of rigid plates mounted
upon angular shoulders on the machine frame, steel wires adjustably mounted in
blocks on said plates, set screws tapped through said blocks and bearing upon said
wires and mechanism substantially as described, for feeding the wire forming the stay
and clinching the ends of the same, substantially as described.
Dated this 2nd day of August 1887
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.