Improvements in and connected with Machines for Carving Wood or other materials.
Year: 1893

page_text: iDate of Application, 2nd Jan., 1893
Complete Specification Left, 6th Apr., 1893-Accepted, 6th May, 1893
PROVISIONAL SPECIFICATION.
Improvements in and connected with Machines for Carving Wood
or other materials.
We ALFRED HUGH TYLER and JOHN STUART ELLIS DE VESIAN both of the
firm of Tyler and Ellis of 5 Crown Court Cheapside in the City of London,
Engineers do hereby declare the nature of this invention to be as follows:-
This invention has for its object to provide a simple and efficient machine or
apparatus for carving wood or other materials. According to this invention at the
rear of a framing carrying the table on which the matrix or pattern and the pieces
of wood or other material are fixed is mounted upon centres or bearings towards
each end thereof a cross beam the ends of which cross beam extend beyond the
said centres or bearings and carry cross pieces to which are pivotted vertical
counterweighted arms carrying at their upper ends centres or bearings on which
cross arms are mounted the said cross arms being connected together and carrying
at their rear ends counterweights and at their forward ends which project over the
table a cross rod or tube upon which the tracing or guide point for the matrix or
pattern and the holders for the carving tools are mounted. The aforesaid centres
or bearings are preferably in the shape of a spherical male part upon which rests a
hemispherical or approximately hemispherical female part so that the one part can
move in various directions freely upon the other part. The tools are preferably
worked by air pressure for which purpose each carving tool may be held in a holder
provided with a motor capable of being rotated by air pressure. The motor
preferably consists of a casing mounted upon the cross bar or tube which extends
across the table as aforesaid. This casing constitutes bearings for the axis of the
tool holder which preferably runs on ball bearings and the said casing also constitutes
a cylinder in which revolves a disc provided with vanes and secured to the tool
holder. The air pressure may be obtained by means of a bellows operated by hand
or by a treadle or by other suitable means, flexible pipes leading air from the
reservoir of the said bellows to each cylinder of the tool carriers which air acts
upon the vanes to give rotation to the tools. The air after acting on the vanes
may pass from the casing through the disc and through holes in the casing.
The motors may be attached to the cross bar or tube by an arrangement which
will allow of the motors and tools being set and fixed at any desired angle.
We do not limit ourselves to the precise arrangement of motor described as it
may be varied for instance the casing may be omitted and instead of using air
pressure other suitable fluid pressure may be used.
Dated this 2nd day of January 1893.
J. H. JOHNSON & Co.,
47, Lincoln's Inn Fields, London, Agents.
COMPLETE SPECIFICATION.
Improvements in and connected with Machines for Carving: Wood
or other materials..
We, ALFRED HUGH TYLER and JOHN STUART ELLIS DE VESIAN both of the
firm of Tyler & Ellis, of 5 Crown Court, Cheapside, in the City of London,
Engineers, 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 :--
This invention has for its object to provide a simple and efficient machine“ or
apparatus for carving wood or other materials.

page_text: The accompanying drawings shew a machine arranged or constructed according
to this invention.
Figure 1 being a side elevation. Figure 2 a front elevation and Figure 3 a
plan. Figures 4 and 5 are details as hereinafter described and Figure 6 is a
vertical section and Fig. 7 a part plan of one of the motors for driving the carving
tools.
C
According to this invention at the rear of a framing A carrying the table B on
which the matrix or pattern and the pieces of wood or other material to be carved
are fixed, is mounted upon centres or bearings e towards each end thereof a cross
beam C the ends of which cross beam extend beyond the said centres or bearings_
and carry cross pieces 2 to which are pivotted as shewn in Figure 5 the arms D
counterweighted at d and carrying at their upper ends centres or bearings don
which is mounted the cross bar F carrying the cross arms E connected together by
the said bar F and carrying at their rear ends counterweights e and (by means of
T pieces t as shewn) at their forward ends which project over the table, a cross rod
or tube G upon which the tracing or guide point 9 for the matrix or pattern and
the holders and motors for the carving tools are mounted. The screws t² clamp the
bar G firmly in place. The aforesaid centres or bearings c and d² are preferably in
the shape of a spherical male part x as shewn in Figure 4 upon which rests a hemi-
spherical or approximately hemi-spherical female part y so that the one part can
move in various directions freely upon the other part. The tools are preferably
worked by air pressure for which purpose each carving tool may be held in a
holder provided with a motor capable of being rotated by air pressure. The
motor preferably consists of a casing H as shewn in Figure 6 mounted upon
the cross bar or tube G by an eye 2 clamped thereto by a screw passed through the
hole h³. This casing H carries bearings for the axis or spindle I of the tool holder /
which spindle preferable runs on ball bearing jj the spindle being provided with
shoulders at 22 for the balls to bear on. The said casing at H2 also constitutes a
cylinder in which revolves a disc K secured to the spindle I, and provided with
vanes k. The air pressure may be obtained by means of a bellows as shewn at L
in Figures 1, 2 and 3 operated by hand or by a treadle or by other suitable means
Hexible pipes m (shewn partly in Figure 2) leading air from the reservoir of the
said bellows to each cylinder of the tool carriers which air acts upon the vanes k to
give rotation to the tools. The air after acting on the vanes k may pass from the
casing through the disc K and through holes therein and will clear away chips
from the work.
The motors attached to the cross bar or tube G as described can be set and fixed
at any desired angle and at any part of the bar G. Or the angular adjustment of
all the tools can be effected by slackening the screws (2 and moving the bar G
round in the T pieces t. The bars may be solid bars or they may be made of light
steel tubes.
We do not limit ourselves to the precise arrangement of motor described as it may
be varied for instance the casing may be omitted; and instead of using air pressure
other suitable fluid pressure may be used.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
1. A machine for carving wood or other materials consisting of the framing and
table, the cross-beam C cross pieces c³, arms D, cross bar F, arms E and cross
rod G (supporting tool holders) and means for imparting motion to the tools the
parts being mounted or centred all substantially as hereinbefore described and
shewn in Figures 1, 2 and 3.
2. A motor combined with a tool holder as described and shewn in Figure 6.
3. A machine for carving wood or other materials consisting of the framing and
table, the cross-beam C, and cross pieces ², arms D, cross bar F, arms E and cross
rod G all mounted or centred as described in combination with tool holders and

page_text: motors H and means for supplying air or the like under pressure thereto substantially
as herein before described and shewn in the accompanying drawings.
4. The arrangement and combination of parts constituting a machine for carving
wood or other materials substantially as hereinbefore described and shewn in
Figures 1, 2 and 3 of the accompanying drawings.
Dated this 6th day of April 1893
J. H. JOHNSON & Co.,
Agents.