Improvements in Machines for the Manufacture of Staves for Barrels and the like.
Year: 1895

page_text: Date of Application, 13th Aug., 1895-Accepted, 14th Sept., 1895
VUMI INIM
DILUIETATION.
[Communicated from abroad by THE AMERICAN BARREL STAVE MACHINE CO.,
a Corporation organized and existing under the laws of the State of
New Jersey, United States of America, and doing business at No. 26
Cortlandt Street, New York, in the County and State of New York, United
States of America.]
Improvements in Machines for the Manufacture of Staves for
Barrels and the like.
I, HENRY HARRIS LAKE, of the Firm of Haseltine, Lake & Co., Patent
Agents, 45 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 improvements in a machine for and method of converting
a strip of veneer into staves. It is well known that veneer turned from a rotary
veneer machine is very smooth, and it is also understood by those familiar with
veneers, that any necessary grooves may be turned in the veneer as it comes from
the machine, and that its edges may be bevelled if desired.
In consonance with this idea my invention contemplates turning a strip of vencer
from a log, with the croze grooves in the strip, and with the edges of the veneer
beveled, and then passing the strip through a machine which will cut the strip
of veneer cross-wise, thus forming it into a series of staves, the length of which
corresponds to the width of the veneer strip, and at the same time giving to the
staves the necessary end taper.
It will be observed that the grain of the individual staves will thus run length-
wise of the staves; that the staves will be shaped ready for use, and will, be to
all intents like an ordinary shaved stave.
The object of my invention is to produce a very simple, durable and efficient
machine, which is adapted to rapidly cut a strip of veneer of the kind described
into staves, which has a series of rotating knives arranged on a revoluble cutting
drum to cut the veneer, and which has a carrier serving also as an ejector,
and adapted to feed the veneer to the machine and carry away and deposit the
formed staves.
A further object of my invention is to provide simple and efficient means for
ejecting the waste material which is cut between the tapered ends of the staves,
and in general to provide for the quick conversion of the veneer strip into
staves.
To these ends my invention consists of a method and machine, which will be
hereinafter described and claimed.
Reference is to be had to the accompanying drawings forming a part of this
Specification, in which similar figures of reference indicate corresponding parts in
all the views.
Figure 1 is a broken side elevation, partly in section, of the machine embodying
my invention.
Figure 2 is a central vertical cross section of the machine.
Figure 3 is an enlarged detail longitudinal view of one end portion of the cutting

page_text: drum, and of the mechanism for ejecting the waste material from between the
knives thereof.
Figure 4 is a broken rear elevation of the machine.
Figure 5 is an enlarged detail sectional view of the brush device used in connec-
tion with the ejecting mechanism shown in Figure 3.
Figure 6 is an enlarged detail plan view of a portion of the carrier and ejector.
Figure 7 is a detail side elevation of the said carrier and ejector.
Figure 8 is a cross section of one of the carrier guides, and
Figure 9 is a broken detail perspective view of a strip of veneer adapted to be
cut into staves.
The machine is provided with a suitable frame 10. which has journaled in
it a revoluble cutting drum 11, this, as illustrated, being hollow, and the drum is
Around the
carried by a shaft 12, which may be driven in any suitable manner.
face of the drum are knives 13, which are arranged in pairs, the knives of each
pair being oppositely curved, as best illustrated in Figure 4, and thus a stave cut
between a pair of knives will be widest in the middle and will taper towards its
ends. These knives inay be fastened to the drum in any convenient way, or may
be formed integral with the drum, but as shown they are dovetailed into the face
of the drum, (see Figure 1).
Opposite the cutting drum 10, and preferably above it, is a bearing drum 15,
which is provided with grooves 14 to register with the knives 13, and the drum 15
is carried by a shaft 16, which is journaled in the frame 10 and is driven by gear
wheels 17, 18 and 19, connecting with gear wheels 20 on the main shaft 12, but it
is of course understood that any of the moving parts of the machine may be driven
in any customary manner.
The staves which are severed from a strip by the knives 13 have a tendency to
stick between the knives, but they are forced outward by the cross bars 21 of the
carrier and ejector 22, and as these cross bars lie flat against the face of the drum
at the time the cutting takes place, the staves are cut so as to lie on the cross bars,
and as the cross bars travel tangentially to the drum and eventually move outward
from between the knives, it will be seen that the staves will be lifted from the
knives and carried away by the carrier. These cross bars 21 are connected by
links 23, which thus form an endless carrier, and the cross bars are also connected
loosely by chains 23", which prevent them from tipping over, and so interfering
with the work of the machine.
The upper portion of the carrier travels in an almost level position through the
machine and over the drum 10, and the carrier is guided and moved by sprocket
wheels 24, which are arranged triangularly in the machine, as shown clearly in
Figure 1, one pair of these sprocket wheels having their teeth provided with gear
wheels 25, which connect by gear wheels 26 with gear wheels 20 on the shaft 12.
It is necessary to have the carrier made and timed so that the cross bars 21 shall
accurately register with the spaces between the knives 13.
The
To guide the carrier and enable the cross bars to move with necessary precision
over the drum 11, the carrier has journaled on its sides, rollers 27 which run on
angle guides 28, these being secured to the frame 10 at opposite ends of the
drum 11, and being curved slightly upward, as shown clearly in Figure 1.
carrier will work without the angle guides 28, but the latter are preferably used.
It will be noticed that the cross bars 21 will not eject the waste material which
is cut from the veneer, and which will lie in the small spaces 13* between the
knives 13, and to provide for ejecting the material the construction described
below, and shown in detail in Figure 3, is used.
Between alternate pairs of knives 13 and opposite the spaces 13, are the waste
or supplemental ejectors 29, which lie normally Hat against the face of the drum 11,
but which at necessary points are forced outward to as to carry out the waste material
and bring it into contact with brushes, to be presently described, which remove the
said material from the dium. Each ejector 29, (see Figure 3) is carried by

page_text: arms 30, which at their inner ends are pivoted to a suitable support on the drum 11,
and the arms have a sliding connection, as shown at 32, with a rod 33, which
extends outward end wise from the drum 11, and has at its outer end a truck 34
running in a hollow cam track 35, which is fast on the frame 10 and is circular, so
that the trucks 34 may readily follow it.
The groove in the track 35 is carried in and out with relation to the drum 11, as
shown by dotted lines in Figure 3, and it will be seen by reference to said figure
that when the trucks 34 are forced inward the rods 33 and arms 30 are move.l
inward, and the ejectors 29 drawn in against the face of the drum 11, but when the
trucks 34 are moved outward, as shown at the bottom of Figure 3, the reverse
novement takes place, and the ejectors 29 are moved outward nearly to the edges of
the knives 13, and the material on the ejectors is thus carried out to a point where
it may be conveniently removed, as presently described.
At opposite ends of the machine, and opposite the place where the ejectors 29
move outward, which point is preferably on the under side of the drum 11,
are revoluble brushes 36, which are preferably of metal, and the faces of
which are preferably roughened so that they will readily engage the waste
material carried outward by the ejectors 29. These brushes 36 turn towards
the ends of the machine and they engage the said waste material and throw it
outward from between the knives 13. The brushes 36 are carried by shafts 37,
which are driven by beveled gears 38 and 39, (see Figure 5) the latter of said
gears being carried by the shaft 40, which is journaled on the frame 10 and has a
suitable driving pulley 41. The outer ends of the shafts 37 are journaled in
arms 42, which are in turn journaled on the shaft 40, and the inner ends of the
shafts 37 are journaled in boxes 43 on a cross rod 44, which is adjustable up and
down in the slots 45 of the arms 46 on the machine frame 10, (see Figure 1) and it
will thus be seen that the brushes may be moved in and out with relation to the
dium 11, so as to bring them into position to engage the waste material already
referred to, while they may be held in any desired position by tightening the nuts 47
on the ends of the rod 44.
I do not confine myself to this particular means of adjusting the brushes 36, nor
even to the use of the brushes 36, as with many kinds of material the ejectors 29
will throw out the waste material without using the brushes.
It will be noticed that the journals of the bearing drum 15, and of one side of the
sprocket wheels 24, are adjustable, but I have not referred to this fact particularly
as no novelty is claimed for it.
The operation of the machine is as follows:
A strip 48, (see Figure 9) of veneer is turned from a log, with the croze
groove 49 in the strip near its opposite edges, and with the edges beveled in the
usual manner, as shown at 50. This strip is fed into the machine at one side upon
the carrier and ejector 22, and as it passes between the drums 11 and 15 the strip
is cut by the knives 13 into staves, which are carried outward from between the
knives by the ejecting cross bars 21, and the staves are dropped at the back end
of the machine. The waste material cut between each pair of staves is ejected
from between the knives by the ejectors 29 and the mechanism already described
in detail, and thus it follows that a continuous strip of veneer may be fed into one
side of the machine, while formed staves drop continuously from the back side of
the machine.
I am well aware that it is very common to cut a strip of veneer into various
articles, the length of which corresponds with the width of the veneer strip, but
I am unaware of the fact that a veneer strip has ever been formed with croze
grooves and shaped edges, and then cut up as specified.
It is evident that this method provides for rapidly cutting a fine quality of staves,
and it is also apparent that the shape of the staves may be changed at will by
changing the shape of the knives 13, and hence that any ordinary staves, such as
barrel, firkin, tub, and analogous staves, may be formed by my machine and
method.

page_text: Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, as communicated to me
by my foreign correspondents, I declare that what I claim is:-
:—
1. A stave machine, comprising a revoluble cutting drum having circumferential
knives, a bearing for the knives, and a flexible belt-like carrier moving tangentially
across the face of the drum, the said carrier having cross bars to fit between the
knives and serve as ejectors, substantially as described.
2. In a stave machine the combination with the revoluble cutting drum and its
peripheral knives, of the flexible belt-like carrier traveling across the face of the
drum and provided with cross bars entering between the knives of the drum, the
rollers journaled on the carrier, and the guides at the drum ends to support
the rollers, substantially as described.
3. In a stave machine the combination of the cutting drum, the peripheral knives,
the flexible belt-like carrier traveling across the face of the drum and provided with
cross bars entering between the kuives, and means as the chains 23, for preventing
the tipping of the cross bars, substantially as described.
4. A stave machine, comprising a revoluble cutting drum having peripheral
knives arranged in pairs, a carrier traveling across the face of the drum and
provided with cross bars extending between alternate pairs of knives to serve a
ejectors, and a second series of supplemental ejectors arranged between the. ens
portions of alternate pairs of knives to eject material from between the said knives,
substantially as described.
5. In a machine of the kind described, the combination with the revoluble cutting
drum and its peripheral knives, of the moving ejectors between the knives, pivoted
arms supported on the drum and carrying the ejectors, and a cam mechanism to
move the arms and ejectors, substantially as described.
6. The combination with the revoluble cutting drum having peripheral knives,
and the radially movable ejectors between the knives, of the swinging arms pivoted
to the drum and to the ejectors, the longitudinally movable rods connected to the
arms, and a cam mechanism for moving the rods in and out, substantially as
described.
7. The combination with the cutting drum having peripheral knives, of the
radially movable ejectors between the knives, the arms pivoted to the drum and to
the ejectors, the rods secured to the arms and projecting from the ends of the
drum, and means, as the circular cam tracks and the trucks on the rods, for
actuating the arms and ejectors by the turning of the drum, substantially as
described.
Dad his 19th Inf
100%
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicant.

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