Improvements in Machines for Cutting or Dividing Strips of Veneer into Lengths.
Year: 1894

page_text: [Communicated from abroad by THE INTERNATIONAL WOOD WORKING
MACHINE Co., of Passaic, New Jersey, United States of America.]
Improvements in Machines for Cutting or Dividing Strips of Veneer
into Lengths.
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 that class of machines which are used for cutting long
strips of veneer into short lengths or blocks.
In machines of this class the strip of veneer to be cut is fed between a revoluble
cylinder having projecting peripheral knives and a bearing drum against which
the knives project. As a result the severed wood is jammed firmly between the
knives of the cutting drum and ejecting mechanism has to be employed for
throwing the material from between the knives. My present invention relates
wholly to ejecting mechanism for this purpose, and the object of my invention
is to produce an ejecting mechanism which is applicable to any rotary cutter of
the class named and which operates positively and automatically to push the
severed wood from between the knives.
To this end my invention consists of certain features of construction and
combinations of parts, as 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 front elevation of the machine embodying.my invention;
Figure 2 is a vertical cross section on the line 2-2 of Figure 1;
Figure 3 is a broken side elevation of the ejecting cylinder;
Figure 4 is an end view of the cylinder;
Figure 5 is a detail of the bolt on which the bearing rollers of the ejecting
cylinder are journaled;
Figure 6 is a detail side elevation and plan of one of the bearing rollers;
Figure 7 is a broken detail view, showing a side elevation, inverted plan, and an
end view of one of the ejecting rods or bars of the cylinder; and
Figure 8 is a detail side elevation and end view of the fastening screw to secure
the bars or rods to the cylinder ends.
The machine is provided with a suitable frame 10, in which is journaled
longitudinally a shaft 11, carrying a cylinder 12 having projecting peripheral
spaced knives 13 which register with grooves 14 in a bearing drum 15, and the
latter is carried on the shaft 16 which is journaled in the machine frame above the
cutting drum and parallel therewith. The knives 13 may be held in any convenient
way to the cutting drum and, so far as my invention is concerned, it is not
necessary to have the bearing drum provided with grooves.
The veneer or wood strips which are cut are fed between the bearing drum and
cutting drum, so that the pressure of the knives 13 on the wood will sever it, and it
will be seen that the pressure requisite to cut the wood forces it very firmly
between the knives. To force it out I employ an ejecting cylinder 17, which is of
larger diameter than the cutting drum and which is provided with circular open
ends 18 and the body of which has parallel bars 19 adapted to lie between the

page_text: knives of the cutting drum. These bars 19, as illustrated, are recessed on their
under sides, as shown at 20, to enable them to lie snugly on the end pieces 18,
and they are securely fastened to the end pieces by screws 21 or equivalent
fastenings.
I have shown the rods or bars 19 and the cylinder ends separable, but it will be
understood that the cylinder may be made in a single piece and the rods or bars 19
produced by slotting the cylinder longitudinally at necessary intervals. The
cylinder ends 18 run on rollers 22 which are preferably provided with flanges 23
and which are journaled on bolts 24 having enlarged bearing portions 25 for the
rollers and provided with nuts 26 to hold them in place. The bolts are fastened
securely to the frame 10 at the ends thereof, as clearly shown in Figure 2, and
there are preferably four of these rollers on each end, these being spaced so as
to bear against opposite portions of the cylinder ends, so that the cylinder may
revolve steadily.
The cylinder is suspended in such a way that the uppermost rods or bars 19 lie
flat against the drum 12 and between the upper knives of the drum, so that
sufficient space is left between these upper rods or bars and the bearing drum 15 to
accommodate the severed veneer or wood. As the cutting drum 12 revolves it
carries with it the ejecting cylinder, and as this describes at its periphery a
different circle from the cutting drum, the rods 19 of the cylinder are gradually
carried outward until they lie beyond the edges of the knives 13, as shown in
Figure 2, and it will be seen that the material which has been forced between the
knives and upon the rods is positively expelled.
As the drum and cylinder continue to revolve new rods are constantly coming
between the bearing and cutting drums and the operation of ejecting proceeds, as
above described. The bearing rollers 22 serve merely to steady the ejecting
cylinder, but they permit it to hang upon the cutting drum, and I do not limit
my invention to the use of the rollers, as the cylinder may be steadied in any
other suitable manner.
Having now particularly described and ascertained the nature of my 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. The combination, with a wood cutting machine, having a revoluble cutting
drum with projecting knives and a bearing drum for the knives, of an ejecting
cylinder hung on the cutting drum and provided with parallel rods or bars to lie
between the knives of the cutting drum, substantially as described.
2. The combination, with the revoluble cutting drum having projecting
peripheral knives and the bearing drum against which the knives revolve, of an
ejecting cylinder hung on the cutting drum and provided with parallel peripheral
rods to lie between the knives, and steadying devices for the ejecting cylinder,
substantially as described.
3. The combination, with the revoluble cutting drum having projecting
peripheral knives and a bearing drum for the knives, of the ejecting cylinder
hung on the cutting drum and provided with parallel rods or bars to lie between
the knives, and bearing rollers arranged within the cylinder to steady the same,
substantially as described.
4. The combination, with the machine frame, the revoluble cutting drum having
projecting peripheral knives and the bearing drums for the kuives, of the ejecting
cylinder having parallel peripheral rods to lie between the knives and open circular
ends, and the bearing rollers journaled on the machine frame and turning against
the inner edges of the cylinder ends, substantially as described.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.