Improvements in Machines for Sizing Barrel Hoops and Securing the Ends thereof.
Year: 1898

page_text: Date of Application, 18th Jan., 1898-Accepted, 26th Feb., 1898
COMPLETE SPECIFICATION.
Improvements in Machines for Sizing Barrel Hoops and Securing the
Ends thereof.
(A communication from CHARLES EDWARD COTTRELL, of Vine Place, Minneapolis,
Minnesota, U.S.A., Secretary.)
I, CHARLES AUBREY DAY, of 321, High Holborn, in the County of London,
Chartered Patent Agent, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement:-
This invention relates to improvements in machines designed for sizing barrel
hoops, and after they have been brought to the proper size firmly securing their
ends together, thus putting the hoops in condition for being driven upon the
barrel and rendering it impossible for them to pull apart while being so driven
or while in use.
To these ends the invention consists generally in constructions and in combina-
tions of parts all as hereinafter described and particularly pointed out in the
claims.
The invention will be more readily understood by reference to the accompany-
ing drawings, forming part of this specification, and in which:
Fig. 1 is a vertical section of a machine embodying the invention.
Fig. 2 is a front elevation of the same, showing a barrel hoop in position
therein, one of the staple fastenings being applied to the hoop and the machine
being in position for applying the other fastening.
Fig. 3 is a transverse vertical section looking from the rear end of the machine.
Fig. 4 is a detail of the means for feeding the wire.
Figs. 5 and 6 are details of portions of the hoop-sizing device.
Figs. 7, 8, 9, 10 and 11 are details showing the movements of the staple form-
ing and the setting mechanism.
Figs. 12, 13 and 14 are details showing the means for cutting the wire and for
bending the ends of the staples around the hoop, and inserting the points into
the hoop.
Fig. 15 is a detail showing the means for imparting motion to the clincher
bars.
Figs. 16, 17, 18, 19 and 20 are details of the plunger and its co-operating
slides by means of which the staple is formed.
Fig. 21 is a detail perspective of the anvil upon which the ends of the hoop
are placed, and showing also the means for clamping the hoop in position while
the staple is being inserted.
Fig. 22 is a front elevation showing one form of device that is used for expand-
ing the hoop and bringing it to the desired size.
Fig. 23 is a front elevation of another form of hoop expander.
Fig. 24 is a detail of a portion of the expander shown in Fig. 23.
In the drawings, 2 represents the frame or casing of the machine, which is

page_text: preferably formed as a hollow casting of suitable size and shape and providing
bearings and supports for the various parts of the mechanism. Upon this casing
is the standard 3 provided with suitable bearings for the main or driving shaft 5.
This shaft is provided with a suitable driving pulley 7. An upright shaft 9
is mounted in bearings in the standard 3 and the top of the casing 2, and the
shafts 5 and 9 are connected together by means of the bevel gears 11 and 13.
From these two shafts the various parts of the machine are driven. The shaft 5
is provided with the grooved cam 15 at its forward end by means of which the
plunger is reciprocated, as hereinafter described, and the shaft 9 is provided with
the two cams 17 and 19 which respectively operate the wire feeding and the
staple clinching devices as hereinafter described. The front of the casing 2 is
provided with a projection 21, see Figs. 1 and 2, having a recess in its top and
having preferably an open end so that said projection forms a trough-shaped
recess within which the clincher slides or bars, hereinafter described, are arranged.
Upon the projection 21 is arranged the anvil 23, see Figs. 1, 2, 14 and 21, this
anvil having preferably a rounded upper surface and consisting of two parts
secured together by pins 25, the parts being so arranged that there is"a récess
hetween them, as shown in Figs. 14 and 21. Each part of the anvil 23 has a
depending flange 27 with a groove 29 upon its inner surface, and rolls 31 are
mounted between the two flanges 27 below the grooves 29,- being secured upon
suitable pins that pass through said flanges. The anvil 23 is placed upon the
projection 21 with the flanges 27 extending into' the 'recess in said projection; as
shown in Figs. 2 and 14. A vertically sliding rod 33 passes through the rear
portion of the anvil 23 and through the projection 21, and is provided with the
hoop-clamp or dog 35 upon its upper end. The lower end of the rod 33 is con-
nected by a set screw 351 to a slide 37 that moves vertically in a slot in the front
of the casing 2. This slide is also secured by a set screw 41 to the upper end of
a rod 43 arranged preferably inside of the casing 2 and having its lower end pass-
ing through a guide lug 47. A treadle 49 is pivoted within the casing 2, and its
forward end passes through a slot in the front of said casing and is adapted to be
depressed by the application of the foot of the operator to the end of the treadle.
A strap 51 is pivoted to this treadle and its upper, end is provided with a lug 53
through which the rod 43 passes. A collar 55 is secured upon the rod 43 by means
of a set screw 57, and a spring 59 is arranged between the lug 53 and the collar 55.
By this means when the treadle is depressed the hoop-clamp 35 is drawn towards
the top of the anvil and is held with a yielding pressure, thereby clamping the
ends of the hoop upon the anvil, as shown in Figs. 1 and 2.
'
The hoop, which is to be sized and fastened, is placed in position with its ends
upon the anvil 23, and under the clamp 35. The hoop will usually need to be
expanded so as to be brought to the exact size desired before its ends are fastened,
and for this purpose it is preferred to provide means operated from the treadle 49
that will expand the hoop to the exact size required and will hold it in such
expanded position while its ends are being secured. The construction of the
expander may be varied without departing from the principle of the operation of
the machine, and in the drawings several different forms of such expander are
shown. As shown in Figs. 1, 2, 5 and 6 the expander consists of the curved
bars 61 pivoted to the front of the casing at each side of the anvil 23, and having
other bars 6 pivotally secured to their..ends by means of the hinged. joints 65.
The ends of the curved bars 63 are connected by the links 67 to the slide 69,
which is arranged to move vertically, in a slot 71' in the wall of the casing. 2. This
slide has formed upon its lower end the curved lug 73, which strikes the hoop at
a point directly under the anvil 23 At the rear of the slide 69, I preferably
place the two washers 75, through which pass the eye-bolts 77. The rod 79 passes
through the eyes in these bolts, and said bolts pass through the slide 69, one of
said bolts passing through the end of the links 67, and the ends of said bolts are
held by nuts 81 and 83, the nut 81 preferably being provided with an extension
which passes through the links 67, as shown in Fig. 6.
T

page_text: Springs 85 are connected to the ends of the curved bars 63 and also to the
casing 2 and serve to raise the slide 69 and draw the bars 63 inward when the
treadle 49 is released.
In Fig. 22, I have shown a single spring 85 connecting the curved bars 63,
and I have shown the slide 69 provided with arms 691 carrying rollers 6911, which
hear upon the end of the curved bars 63, so that by depressing said slide said bars
are pressed outward in substantially the same manner as is done with the con-
struction shown in Fig. 2. In this instance, however, the bars 63 are made
longer so that there is only a short space between their ends and the lug 73 may
be omitted; or, this lug may be arranged upon the bottom of the slide, as shown
in Fig. 22.
In Figs. 23 and 24, I have shown another modification of the expanding device.
As here shown stationary curved bars 611 are arranged upon the front of the
casing at each side of the anvil 23, and the slide 69 has formed integrally with
it or secured to it a substantially semi-circular bar 63, which extends on both
sides of said slides, its ends substantially coinciding with the ends of the fixed
bars 61. In this instance the spring 85 is connected directly to the slide 69
and to the casing of the machine, so that when the lever is released the slide is
raised and the curved bar 631 is moved into the position indicated by dotted lines
in Fig. 23. It will be seen that in each instance the hoop may be placed over
the expanding device, its ends being overlapped upon the top of the anvil 23,
and under the clamp 35. The treadle being then depressed the clamp 35 will be
brought on top of the overlapping ends of the hoop with a yielding pressure.
At the same time the expanding devices are brought against the inner surface
of the hoop and expand the hoop to the required size, the overlapping ends of the
hoop sliding upon each other under the clamp 35 a sufficient amount for this pur-
pose. When the hoop is brought to the desired position it is there held while the
staple is formed, passed around and secured to the overlapping ends of the hoop.
I will next proceed to describe the means by which the wire is fed, the staple
formed, passed around the overlapped ends of the hoop and its points embedded
therein.
The wire is fed from a suitable reel 87, through a guide 89 and over a wheel 91
that is supported upon an arm 93 upon the casing 2. From the wheel 91 the wire
passes under and over the straightening rolls 95 and 97 that are adjustably
mounted upon a rod 99 supported upon the arm 93 by a suitable standard 101.
The wire passes through the upper part of the casing 2 and through a hole in
the front wall of the casing at one side of the hoop clamp 35. A transverse
shaft 103 is mounted in the casing 2 and is held in position by means of the
collars 105. A vertical arm 107 is secured to this shaft by means of a set
screw 109 and said arm has connected to it a slotted plate 111 through which the
shaft 9 passes. The plate 111 carries a roll 113 that bears against the cam 17.
A spring 115 is connected to the arm 107 and holds the roll 113 at all times in
engagement with the surface of the cam 17. By this means, as the shaft 9 is
rotated the bar 107 is reciprocated, being moved from the position shown in full
lines in Fig. 4 to the position shown in dotted lines in the same figure. Secured
upon the haft 103 is a depending arm 117 provided at its lower end with a pin 119.
Another arm 121 is arranged loosely upon the shaft 103, see Figs. 1, 3 and 4,
and the lower end of this arm is provided with a notch 123 that is adapted to
engage a pin 125 in the treadle 49, so that whenever the treadle is depressed the
notched end of the arm 121 drops over the pin 125 and holds said treadle in its
depressed position until the arm 117 is swung forward and by engagement with
the arm 121 releases said treadle and permits it to be raised by the means herein-
after described. The upper end of the arm 107 is provided with the rolls 127,
between which the wire passes, and is also provided with feed dog 129
that is held against the wire by the spring 131. The wire also passes
over the stationary roll 133 and beneath the dog 135 held in position
against the wire by the spring 137. By this means each time the upper end of

page_text: the arm 107 is swung forward or towards the anvil 23 the wire is moved a sufficient
amount to form one staple. Upon the return movement of the arm 107 the wire
is held by the dog 135 and the dog 129 slides over the wire without moving it.
In this way at the proper intervals the wire is fed to form the staples or fastenings
that are passed around the overlapped ends of the hoop.
Arranged above the anvil 23 is a vertically sliding plunger that is mounted in
fixed guide-ways secured to the front of the standard 3. A projection 4 is sup-
ported upon the front of the standard 3, and secured thereto is the plate 6, see
Fig. 2, which forms the front guide-way for the vertically reciprocating plunger.
This plunger is formed in three parts; an outer part 8, see Figs. 8 and 18, a
central part 10, see Figs. 8 and 20, and an intermediate part 12, see Figs. 8 and 19.
The outer part 8 is centrally recessed, as shown in Fig. 18, and within this recess
is placed the intermediate part of the plunger 12. This intermediate part 12 is
also centrally recessed and within it is placed the central part 10. The outer
part 8 of the plunger is provided with the roller 14 that fits within the groove
in the cam 15, and by means of which said plunger is given a vertically recipro-
cating movement. The lower ends of the parts or sections 10 and 12, and of
one part of the plunger 8, are provided with a groove 16, so that when the lower
ends of these several parts of the plunger are at the same height from the anvil
the sections of the groove 16 coincide, thereby forming a continuous groove into
which the wire passes as it is fed beneath the plunger by the means already
described. The edge of the part 8 of the plunger that is nearest the opening
through which the wire is fed, is provided with a knife 22 which co-operates with
an adjustable knife 18 held in position by screws 20 and 24, see Figs. 12, 13 and 14
and serves to sever the wire at the beginning of the downward stroke of
said plunger. A steel bushing 26 is preferably arranged in the wall of the casing
in front of the feed dog 135, and through this bushing the wire is passed. I
provide a wire holder which consists of a pivoted plate 28, see Figs. 7 and 8,
that is supported upon a fixed portion of the frame work of the machine close to
the reciprocating plunger, said holder being of the width of the two parts of the
plunger 10 and 12. This holder is provided in its lower end with a lip 30 and
a spring 32 secured to the frame of the machine holds this lip normally under the
ends of the two parts of the plunger 10 and 12, as shown in Figs. 7, 8 and 9. The
part 10 of the plunger is provided with a screw 34 that passes through a slot in
the part 12 and also through a slot in the part 8 of the plunger, see Figs. 17, 18
and 19. The part 8 of the plunger is also provided with a lug 36 that extends
through a slot in the part 12 of the plunger and into a recess 38 in the wire
holder 28. The under surface of the lug 36 and the bottom wall of the recess 38
are bevelled or inclined so that when the plunger 8 has reached a predetermined
point in its downward movement this inclined surface of the lug engages the
inclined surface of the wall of the recess and thereby said wire holder is moved
back into the position shown by dotted lines in Fig. 7. The lower end of the part 8
of the plunger is recessed, as shown in Fig. 18, and the lower end of the part 12
is recessed as shown in Fig. 19, and the inner ends of the depending portions of
the parts 8 and 12 are provided respectively with the notches 40 and 42, as
shown in Figs. 8, 18 and 19. When, therefore, the wire has been fed through
the sleeve or bushing 26 it will, lie in the groove 16 in the lower end of the
plunger and it will be supported beneath the parts 10 and 12 of the plunger by
the wire holder 28, as it will rest upon the lip 30 of said wire holder. The first
downward movement of the plunger will cause only the part 8 to descend, the
other parts 10 and 12 of the plunger being held by said wire holder 28, see
Fig. 17. This movement of the part 8 of the plunger will sever the wire close to
the bushing 26 and will turn its ends down over the ends of the lip 30 of the wire
holder 28 so that the wire will assume the position shown in Fig. 9. A further
movement of the part 8 of the plunger will cause the wire holder 28 to be with-
drawn from under the ends 10 and 12 of the plunger and from
under the wire, and the wire will then drop upon the overlapped

page_text: ends of the hoop. The further movement of the plunger brings the part 10
firmly upon the top of the wire so as to partially embed the wire in the surface
of the hoop and cause the part 12 of the plunger to bend the wire down over the
hoop into the position shown in Fig. 10, and the last movement of the wire
carries its ends down between the two parts of the anvil and upon opposite sides
of the central plate 44, shown in Figs. 14 and 10. For the purpose of finishing
the movement of the wire I provide two oppositely moving clincher bars 46, each
carrying a vertically projecting blade 48 that projects into the space between
the wall of the anvil and the plate 44, see Fig. 14. These plates are provided
with the recesses 50, see Fig. 10, which are adapted to engage the bends in the
wire staple and turn the same up against the underside of the hoop, moving them.
from the position shown in Fig. 10 to that shown in Fig. 11. Clincher bars 46
are provided with the inclines 52 and as said bars move past each other these
inclines ride over the rolls 21, thereby raising the rear ends of the bars and
forcing the points of the staples into the hoop, bringing the bars and the points.
of the staples into the position shown in Fig. 11, and thereby completing the
operation of setting the fastening.
For the purpose of operating the clincher bars the rack bars 54 are provided,
to which said clincher bars are secured. These rack bars are each provided
with a series of teeth and they engage a pinion 56 arranged between them, as
shown in Fig. 15, and the rear ends of said bars slide in the suitable bracket or
support 58, see Figs. 1, 3 and 15. One of said bars 54 is connected by suitable
pins 60 to an operating bar 62, said bar being provided with a loop 64 which passes
around the shaft 9, and with a roll or pin 66 that engages the surface of the cam 19.
A spring 68 is connected to the frame of the machine and to a lug 70 on the
har 62 and holds said bar 62 with its roll in contact with the surface of the cam 19.
As the shaft 9 is rotated the bar 62 is reciprocated and the rack bars 54 are moved
in opposite directions, thereby moving the clincher bars past each other and
clinching the ends of the staples, in the manner already described.
The driving pulley 7 is loosely mounted upon the shaft 5 and a clutch 7, see
Fig. 1, is arranged upon said shaft and is operated for connecting the shaft and
the driving pulley at suitable intervals when the fastening is to be applied to the
hoop. Any suitable construction of clutch may be used for this purpose, and
hence the details of the construction are not shown in the drawing. The clutch
is provided with a suitable lug 72, and an operating rod 74 is arranged upon
the casing of the machine and is provided with a lug 76 that is adapted to engage
the lug 72 of the clutch. A spring 78 is provided between projections 80 upon the
casing of the machine and serves to throw the lug 76 into engagement with
the clutch lug 72 and thereby to operate the clutch and disconnect the driving
pulley 7 from the shaft 5. The operating rod 74 is connected to a bell crank
lever 84 and a projecting arm 82 is provided upon the treadle 49 in position to
engage one arm of said bell crank lever.
With this construction the spring 78 holds the lug 76 in engagement with the
lug 72 upon the clutch 71 and thereby holds said clutch out of engagement with
the shaft 5. When pressure is applied to the treadle 49 the first downward move-.
ment thereof expands the hoop and forces the clamp 35 down upon it so as to
hold it firmly in position. The further movement of the treadle causes the arm 82
to engage the bell crank lever 84 and through the operating rod 74 draws the
lug 76 out of engagement with the clutch lug 72. The clutch being released from
the lug 76 immediately engages the driving pulley with the shaft 5 and through
the shaft 5 the parts of the machine already referred to are operated for the pur-
pose of forming and applying the wire staple or fastening device. A buffer or
stop 90 may be arranged on the casing to be engaged by the treadle when it is
drawn up by the spring connected to the expanding bars. The wire forming the
staple is embedded for about one-half of its diameter in the surface of the hoop,
and the ends of the staples are embedded or driven into the inner surface of the
hoop. This makes it impossible for the parts of the hoop to slip no matter how

page_text: much strain or pressure is brought upon it. In general practice two staples or
fastenings are applied to each hoop, and after one staple has been applied the
hoop is released and turned into position to have a second staple applied, as shown
in Fig. 2 of the drawings,, and, while, with the mechanism shown, the expanding
device will be operated each time that the treadle is depressed for the purpose of
tripping the clutch-holder device, it will be understood that after one staple is
applied to the hoop it will not be necessary to again.expand the hoop, and hence,
if preferred, a separate lever may be provided for operating the clutch tripping
device when it is desired to insert a staple without first expanding the hoop. Any
number of staples may be applied to each hoop, although two will be found
sufficient for a firm fastening. Instead of applying one fastening and then
moving the hoop and applying another I may provide the machine with two or
more staple applying machines and apply two or more staples or fastenings
simultaneously.
.
The hoop expander may obviously be formed separately from the rest of the
machine and the hoop be expanded and sized in one machine and its overlapped
ends be temporarily fastened, as by the use of the tack or small nail, and then
this machine may be used to permanently fasten the overlapped ends of the hoop.
The staples may be formed separately and this machine be used to apply them
to the overlapped ends of the hoop.
In some instances, if preferred, the machine may be used without the hoop
expanding device for the purpose of securing together the ends of overlapped
separate strips in the manufacture of hoops.
It will be readily understood that the details of construction may be modified in
many ways without departing from my invention.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what I
claim is:
1. The combination, with means for expanding the hoop and clamping its over-
lapped ends, of means for feeding the wire, means for forming bends in the ends
of the wire, a cutter for severing a suitable length of wire, means for bending
the wire around the overlapped ends of the hoop, and means for embedding the
bent ends of the wire in the hoop, for the purpose set forth.
2. The combination, with means for clamping the overlapped ends of a hoop,
of a wire feed, a cutter for severing a suitable length of wire, means for forming
bends in the ends of the wire, means for bending the severed length of wire about
the overlapped ends of the hoop, and means for embedding the bent ends of the
wire in the hoop, for the purpose set forth.
3. The combination, with means for clamping the overlapped ends of a hoop,
of a suitable wire feed, a three-part plunger, means for operating said plunger to
sever a length of wire, form bends in its ends and bend it over the edges of the
hoop, clincher bars, and means for operating said bars to embed the bent ends of
the wire in the hoop, for the purpose set forth.
4. The combination, with the anvil for supporting the overlapped ends of the
hoop, and the clamp for holding said ends, of the three-part plunger, the wire
holder extending beneath the ends of the central and intermediate parts of the
plunger, and means for operating the parts of said plunger in succession to sever
a length of wire and form it into a staple around the overlapped ends of the hoop,
and means for withdrawing said wire holder when said plunger descends to forin
said staple, for the purpose set forth.
5. The combination, with means for holding the hoop, of the wire feed, the
plunger for forming bends in the ends of the wire and bending the same around
the hoop, the reciprocating clincher bars for embedding the bent ends of the wire
in the hoop, and means for operating said plunger and clincher bars, for the
purpose set forth.
6. The combination, with the reciprocating plunger, formed in three parts,

page_text: and having the wire receiving groove in its lower end, of the swinging wire holder
adapted to extend beneath the central and intermediate parts of the plunger,
the spring engaging said wire holder, means for operating the parts of said
plunger in succession, and means for withdrawing said wire holder, for the pur-
pose specified.
7. The combination, with the reciprocating plunger, consisting of the outer
part 8, the intermediate part 12 and the central part 10, each of said parts being
formed with a wire receiving groove in its lower end, means for operating the
parts of said plunger in succession, and the swinging wire holder 28 provided
with the lip 30 adapted to extend beneath the parts 10 and 12 of the plunger, and
the spring 20 engaging said wire holder, for the purpose set forth.
8. The combination, with the wire holder having the lip 30, of the plunger,
said plunger consisting of the parts 8, 10 and 12, each provided in its lower end
with the groove 16, the part 8 being provided with the recesses 40, and the
part 12 with the recesses 42, said wire holder being arranged with its lip in
position to extend beneath the parts 10 and 12 of the plunger, and means for
operating the parts of said plunger in succession, for the purpose set forth.
9. The combination, with means for holding the hoop and means for feeding
the staple and bending it around said hoop, of the reciprocating clincher bars 46
provided with the inclines 52 and the rolls 31, upon which said clincher bars rest,
and means for operating said clincher bars, for the purpose set forth.
10. The combination, with the two-part anvil 23, provided with the plate 44
arranged between the two parts of said anvil, of the reciprocating clincher bars
arranged to reciprocate upon opposite sides of said plate 44, for the purpose set
forth.
11. The combination, with the two-part anvil 23, of the hoop clamp 35 arranged
over said anvil, means for forming a staple, forming bends in its ends and bend-
ing said staple around a hoop, and the reciprocating clincher bars for embed-
ding the ends of the staple in the hoop, for the purpose set forth.
12. The combination, with means for sizing and clamping a hoop, a treadle for
operating said sizing and clamping means, a staple forming and applying
mechanism, and means connected with said treadle for putting said staple forming
and applying mechanism in operation after said hoop is sized and clamped.
1011 1 Tanu1000
DAY, DAVIES & HUNT,
Chartered Patent Agents, 321, High Holborn, London, W.C.,
Agents for the Applicant.