of Various Shapes for Marquetry Work and Parquetry Work and for other like Purposes.
Year: 1884

page_text: of Various Shapes for Marquetry Work and Parquetry Work
and for other like Purposes.
I AARON LUFKIN DENNISON of Wretham Villa Wretham Road Handsworth
in the County of Stafford Watch Manufacturer do hereby declare the nature
of the said Invention for "NEW OR IMPROVED MACHINERY OR APPARATUS FOR
CUTTING WOOD OF VARIOUS SHAPES FOR MARQUETRY WORK AND PARQUETRY
"
WORK AND FOR OTHER LIKE PURPOSES to be as follows:-
My invention consists in constructing and arranging the parts of machinery or
apparatus for cutting wood of various shapes for marquetry work and parquetry
work and for other like purposes in the manner hereinafter described.
In cutting wood for marquetry work and parquetry work and for other like
purposes it has been usual to form roughly pieces of the desired form by sawing
and giving them the exact form required by shaving or other finishing processes.
By the use of my invention pieces of wood are produced of the required form
and size and with a uniformity of size and shape unattainable by the ordinary
method of making.
The machinery or apparatus constituting my invention is constructed essentially.
as follows. I form a block of iron or other hard metal or alloy having the exact
figure of the pieces of wood to be cut out. This block which. I will call the cutting
block has a thickness sufficient to permit of the firm attachment and adjusting to
its sides of knives or cutting edges. These knives or cutting edges are attached to
the sides of the cutting block preferably by screws and form a continuous knife or
cutting edge of the same configuration as the cutting block to which they are
attached. The knives have such a depth that their continuous cutting edge stands
above the face of the cutting block at a height somewhat greater than the thickness
of the wood to be cut.
Within the cavity formed by the knives and upper surface of the cutting block
is a plunger preferably of the same figure as the said block. This plunger is fixed
on the top of a rod passing through a hole in the cutting block the said cutting
block with its knives and plunger is fixed on the bed of a press the bolt of which
carries a flat block of wood or soft metal larger than the cutting block. The block
carried by the bolt of the press I will call the press block.

page_text: The motion of the said press block as well as that of the plunger is effected by
mechanical appliances of the ordinary kind which I do not think it necessary to
describe.
In using the new or improved machinery or apparatus constituting my invention
the piece of wood to be operated upon having been cut by sawing or otherwise
into a shape roughly resembling that which the finished piece is intended to have
and of somewhat larger size is placed upon the cutting edge of the cutting block
the press block is brought down and pressing on the wood cuts it out and forces it
into the cavity formed by the knives and the cutting block. The press block being
raised the cut out piece of wood is lifted from the cutting block by the raising of
the plunger and being removed from the machine the machine is ready to cut
another piece.

page_text: or various Shapes for Marquetry Work and Parquetry Work
and for other like Purposes.
I AARON LUFKIN DENNISON of. Wretham Villa, Wretham Road Handsworth
in the County of Stafford Watch Manufacturer do hereby declare the nature
of my Invention for "NEW OR IMPROVED MACHINERY OR APPARATUS FOR CUTTING
WOOD OF VARIOUS SHAPES FOR MARQUETRY WORK AND PARQUETRY WORK AND
FOR OTHER LIKE PURPOSES and in what manner the same is to be performed
to be particularly described and ascertained in and by the following statement :-
My invention consists in constructing and arranging the parts of machinery or
apparatus for cutting wood of various shapes for marquetry work and parquetry
work and for other like purposes in the manner hereinafter described.
In cutting wood for marquetry work and parquetry work and for other like
purposes it has been usual to form roughly, pieces of the desired form by sawing
and giving them the exact form required by shaving or other finishing processes.
By the use of my invention pieces of wood are produced of the required form
and size and with a uniformity of size and shape unattainable by the ordinary
method of making.
The machinery or apparatus constituting my invention is constructed essentially
as follows. I form a block of iron or other hard metal or alloy having the exact
figure of the pieces of wood to be cut out. This block which I will call the cutting
block bas a thickness sufficient to permit of the firm attachment and adjusting to
its sides of knives or cutting edges. These knives or cutting edges are attached to
the sides of the cutting block preferably by screws and form a continuous knife or.
cutting edge of the same configuration as the cutting block to which they are
attached. The knives have such a depth that their continuous cutting edge stands
above the face of the cutting block at a height somewhat greater than the thickness
of the wood to be cut.
.
Within the cavity formed by the knives and upper surface of the cutting block
is a plunger preferably of the same figure as the said block. This plunger is fixed
on the top of a rod passing through a hole in the cutting block; the said cutting
block with its knives and plunger is fixed on the bed of a press the bolt of which
carries a flat block of wood or soft metal larger than the cutting block. The block
carried by the bolt of the press I will call the press block.
The motion of the said press block as well as that of the plunger may be effected
by mechanical appliances of the ordinary kind which I do not think it necessary
to describe.
t
In using the new or improved machinery or apparatus constituting my invention,
the piece of wood to be operated upon having been cut by sawing or otherwise
into a shape roughly resembling that which the finished piece is intended to have
and of somewhat larger size is placed upon the cutting edge of the cutting block;
the press block is brought down and pressing on the wood cuts it out and forces it
1:
,1

page_text: .
into the cavity formed by the knives and the cutting block. . The press block being
raised the cut out piece of wood is lifted from the cutting block by the raising of
the plunger and being removed from the machine the machine is ready to cut
another piece.
Figure 1 of the accompanying Drawings represents in elevation partly in vertical
section, machinery or apparatus, constructed according to my invention for cutting
wood of various shapes' for marquetry and parquetry work and for other like
purposes; Figure 2 is a plan of the bed plate of the machinery and the cutting
block and Figure 3 is a plan, partly in section, showing the bolt and cross piece for
working the lifting plunger as hereinafter described.
The same letters of reference indicate the same parts in the several Figures of
the drawings.
a is the bed plate of the machinery on which the cutter block b is fixed, the said
block having the exact figure of the piece of wood to be cut out. The cutting
block b is fixed on the bed of the machine. by means of the base plate c to which it
is bolted, the said base plate being clamped to the said bed plate by the sliding
screw clamps d, d represented in Figure 2. In the drawing I have represented
for illustration a block having an octagonal figure, it will however be understood
that the shape of the cutting block corresponds with the shape of the piece of wood
to be cut out. On the sides of the cutting block 6 the knives or cutting edges e, e.
are fixed by the screw pins f, f. The said knives f, f when so fixed form a
continuous knife or cutting edge of the same configuration as the cutting block b
as shown in Figure 2. It will be seen by examination of Figure 1 that the
knives e have such a depth that their continuous cutting edge stands above the
face of the cutting block b at a height somewhat greater than the thickness of
the wood to be cut out. Within the cavity at g formed by the upper ends of the
knives e and the top of the cutting block b is a plunger h of the same figure as the
said block. The rod h² on the underside of the plunger h works in a hole passing
through the cutting block b plate c and base plate a. The plunger h constitutes a
lifter for lifting the cut out piece of wood from the cavity g. This lifter is
operated automatically by the bolt of the machinery in the manner herein after
explained.
is the press block by means of which the piece of wood k³ to be cut out is
forced against the cutting edge of the cutting block b. The said press block i is
made of hard wood or soft metal and is larger than the cutting block b as
represented. The press block is carried by the sliding bolt k of the machine and
the latter is connected to the screw by the motion of which the bolt k is raised
and lowered and with it the press block i. The bolt is prevented from rotating
by the set pin m taking into a vertical slot in the said bolt.
I do not limit myself to the raising and lowering of the press block i by the
action of a screw as the bolt to which the press block is connected may be
actuated by à cam, eccentric or other equivalent mechanical appliance.
The lifting plunger his worked from the bolt k in the following manner.
Connected with the cross piece n on the said bolt k are two vertical rods p, p
the lower ends of which are connected to the lower cross piece q under the bod
plate of the machine. Carried by the lower cross piece q and screwing in it is a
hand wheel r, the screw 2 of which bears against the rod h of the plunger h. By
driving home more or less the hand wheel in the cross piece q the adjustment of
the plunger h to suit different thicknesses of wood being operated upon may be
effected. As the bolt k descends the hand wheel r, 2 also descends and permits of
the motion of the plunger h in the cavity g of the cutting block and when the
bolt is raised the said hand wheel is also raised and its screw striking the rod h
of the plunger h raises the said plunger and the latter lifts the cut out piece of wood
from the cavity g in the cutting block b.
The action of the machinery is as follows:-The roughly shaped piece of wood k
to be operated upon is placed upon the cutting edge e of the cutting block 6 in the
manner represented in Figure 1 and the press block i is brought down upon it. By

page_text: the action of the press block i it presses the piece of wood k against the cutting
edge e and thereby cuts from the wood a piece of the form of the cutting block b
and forces the cut out piece into the cavity g, the piece of wood as it is cut out
carrying before it the plunger h. The piece of wood is thus cut out to the exact
form of the cutting block b and is ready to be used without further treatment.
The press block i is next raised by the operation of the screw and bolt k and the
said bolt operating through the cross piece m rods p, p, cross piece q and hand
wheel r² raises the plunger h in the cavity g and with it the cut out piece of wood
which can now be removed from the machinery by hand.
On placing another roughly shaped piece of wood upon the cutting edge of the
cutting block b the operations herein before described are repeated. In this way,
pieces of wood of various shapes for marquetry and parquetry work and for other
like purposes are readily produced, the cut out pieces having a uniformity of size
and shape unattainable by the ordinary hand processes.
Having now particularly described and ascertained the nature of my said'
invention and in what manner the same is to be performed declare that what
I claim is of "New or improved machinery or apparatus for cutting wood of
various shapes for marquetry work and parquetry work and for other like
purposes
C
•
First. The combination of the cutting block b and its continuous knife or
cutting edge c (or other like cutting block having the exact figure of the pieces of
wood to be cut out) with the press block i fixed to and carried by the bolt of the
machine, the said cutting block and press block being constructed and working
substantially as herein before described and illustrated in the accompanying
Drawings,
Secondly-Arranging in the cavity of the cutting block claimed in the previous
claim, the lifting plunger h for lifting the cut out pieces of wood on the rising of
the press block and the construction and combination of parts described and
illustrated in the accompanying Drawings for automatically working the said lifting.
plunger from the bolt of the machine.