Improvements in Machines for Carving or Shaping Wood or like Substances.
Year: 1891

page_text: Date of Application, 19th Dec., 1891
Complete Specification Left, 19th Sept., 1892-Accepted, 5th Nov., 1892
PROVISIONAL SPECIFICATION.
Improvements in Machines for Carving or Shaping Wood or like
Substances.
I EDMISTON INGLIS WILSON of Number 1 Brontë Street, Bradford Road
Keighley in the County of York, Wood Carver, do hereby declare the nature of
this invention to be as follows, that is to say :-
It relates to improvements in machines for carving or shaping wood or
like substances and consists of constructing and arranging the parts forming
said machines in such a manner that designs in the wood being carved or
shaped, may be produced of an increased or reduced size, as compared with the
pattern being followed, by the adjustment of certain of the motor parts in the said
machines.
Framework is arranged so that the tables carrying the wood to be operated upon
as also that carrying the pattern, may be mounted to slide thereon.
The tables carrying the wood, as also that carrying the pattern, are operated in
one direction by adjustable cranks, and in the other by adjustable rack and pinion
or like mechanism, the crank or cranks operating the wood-carrying-tables as also
the rack and pinion mechanisms for these tables are arranged to work in unison
with the crank and other mechanisms operating the pattern table, so that when the
former are arranged to travel backward and forward as also laterally through a
greater or less space at each revolution of their operating shaft, the latter will have
travelled through a proportionately larger or smaller space and in unison therewith,
performing its return or reversed as also lateral movements simultaneously with
those of the former.
The driving mechanism consists of an arrangement of shafts and pulleys to
obtain the desired rate of speed to the rotary cutter from one prime motor belt,
while suitable belt and pulley or shaft and toothed gearing mechanism is employed
for imparting motion at the desired rate of speed to the operating cranks, from the
shaft or shafts of which motion is imparted to the respective tables by the adjustable
rack and pinion or other mechanism."
The vertical notions of the rotary cutters is obtained, by rack and pinion
mechanism, from the tracer which moves over the pattern.
The rotary cutters as also the driving mechanism therefor, are supported by
framework mounted upon that carrying the tables above described.
E. I. WILSON,
Per Samuel Hey,
Agent.
COMPLETE SPECIFICATION.
Improvements in Machines for Carving or Shaping Wood or like
Substances.
I, EDMISTON INGLIS WILSON of Number 1 Brontë Street, Bradford Road
Keighley in the County of York, Wood Carver, 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, that is to say :-
It relates to improvements in machines for carving or shaping wood or
like substances and consists of constructing and arranging the parts forming
said machines in such a manner that designs in the wood being carved or
D037

page_text: shaped may be produced of an increased or reduced size, as compared with the
pattern being followed, by the adjusting of certain of the motor parts in the said
machines.
In order that my said invention may be more readily understood and carried into
effect I have hereunto appended sheets of drawings illustrative thereof, to which by
figures and letters reference is made in the following description.
Figs. 1 and 2 are elevations and part sectional side view of the opposite sides of
my improved mechanism.
Fig. 3 is end elevation of said machine or mechanism.
Fig. 4 shews same as seen from above.
Fig. 5 is a drawing in detail of parts hereinafter described.
The framework a is arranged so that the tables b and c may be mounted to slide
thereon.
The tables b and c are operated, in the directions indicated by the arrows d and e
by the adjustable cranks and g, to which they are coupled by the rods and g¹,
while the tables and k, which are mounted to slide upon the tables and c
respectively, are operated, in the direction at right angles to that indicated by the
said arrows d and e by means of the screws and m respectively.
The screw is operated by the finger n being brought into contact with the
dogs o and o as the table b is approaching the end of its stroke in each direction,
at one time (that is when in contact with the dog o) the motion of the finger n being
imparted to said screw by the ratchet and ratchet wheel and at the other
(when the finger n is in contact with the dog o¹) by the ratchet 13 (coupled to the
finger n by the rod n¹) operating the wheel which gears with said wheel 12 so
that whether the motion of the screw is received from the dog o or o' said motion
is always in one direction.
The screw m is operated in a similar manner to that in which the screw is
operated, the ratchets m² m² ratchet wheels m³ m', finger m³ and dogs ppl being
employed for this purpose, however the motion of the ratchet wheels m³ m is
imparted to the screw m through the medium of the shaft g and series of change
wheels in order that the motion of the screw m as compared with that of the
ratchet wheels n³ m² may be varied either by being increased or diminished as may
be desired.
By the arrangement of crank and ratchet and screw mechanism as above described
the movements of the table are in unison with those of the table k, and by
arranging the crank pins of the cranks and to be respectively nearer or farther
from the centres of said cranks, the spaces through which the tables h and k are
made to travel in the directions indicated by the arrows d and e may be made
to be equal or one to be greater than the other. This equality or difference in the
space through which the tables h and k move in the other direction is effected by
regulating the arrangement of change wheels r.
The rotary cutters s and s¹ (or more than two of these cutters may be employed
by arranging the framework to carry same) derive their rotary motion from the
pulleys and t¹ mounted on the shafts uu' which are rotated by belt and
pulley or other mechanism coupling same to the main shaft 2 of the machine (from
which, by the worm 3 and wheel 4, the cranks and g derive their motion) on
which shaft 2 the speed cone 5 is mounted. Or the shaft u may derive. its rotary
motion from any overhead shaft independent of the machine as may be found
desirable.
The vertical movements of the cutters s and (which are mounted to slide
within their bearings and s³ and on a feather within their pulleys s' and s) are
effected through the levers vv and w w¹ and rods y y' by the tracers xx¹ (or as
is hereinafter explained) moving over the pattern plates carried by or mounted
upon the table k so that as the said pattern plates are moved by the table k
beneath the tracers (or 22) any ridges or indents on the surfaces
of said pattern plates will cause the tracers xxl (or x²) to rise and fall by
gravity so also will the rotary cutters rise and fall and thus reproduce the

page_text: じ
uneven surface of the pattern plate on the table k upon the material under operation
on the table h, and as the fulcrums 8 of the levers are adjustable the movements of
the cutters may be moved through greater or less spaces than are those of the
tracers consequently by the proper adjustment of the crank pins on the cranks f
and and a like adjustment of the fulcrums of the levers v ' the design of work
produced on the material under operation on the table may be increased or
decreased in area and depth as compared with the design on the pattern plate on
the table which operates the tracers ².
When the tracers are employed a separate pattern plate may be placed
beneath each of them so that two classes of work may be produced at one time, in
which case the levers ww work loosely on the shaft 9 however by fixing the
levers and w² (by set screws or the like) to the said shaft 9, the middle
tracer a may be brought into use upon a pattern plate beneath it, while the other
tracers are idle thus reproducing the design of one pattern plate in two pieces
of material under operation.
By the bearings 2 and 3 being arranged so that they may be vertically adjusted
in their supports 10 and 11 while a like adjustment of the fulcrums 8 of the
levers might be effected, the rotary cutters ss may be raised or lowered to be
in contact with a thicker or thinner piece of material upon which they may be
required to operate.
U
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed I declare that what I
claim is.
1. The combination of a moveable table, arranged to support or carry a pattern
plate, with a moveable table arranged to support or carry the wood or material
under operation, the same being arranged to operate in unison with each other
either through equal or variable spaces substantially as herein specified.
2. The combination of a tracer and means for coupling same to a rotary cutter
so that the movements of the latter may be in unison with those of the former
whether they are travelling through equal or varied paths of motion or distances
substantially as herein set forth and described.
3. The combination of a tracer with means for coupling same to two or more
rotary cutiers so that its movements govern, control or effect those of the said
cutters substantially as herein specified.
4. The combination of a moveable table arranged to carry one or more pattern
plates, one or more tracers to operate in connection with said pattern plate or
plates, a moveable table to support and carry one or more pieces of wood or other
material and one or more rotary cutters to act upon said wood or other material,
all of these parts being arranged to operate substantially as herein set forth and
described.
5. The general arrangements and combination of parts forming the machine for
carving or shaping wood or like substances substantially as herein specified.
6. The combination with the carving machine herein before described of adjustable
spindle-bearings for rotary cutters with levers having detachable fulcrums to allow
the adjustment of said spindle-bearings substantially as herein set forth and
described.
Dated this 17th dox of September 1892.
EDMISTON I. WILSON,
Per Samuel Hey,
Agent.