Improvements in or relating to the Planing or Working of Wood.
Year: 1895

page_text: Date of App.cation, 5th Feb., 1895
Complete Specification Left 5th Nov 1,95-Accepted. 7th Dec. 1895
PROVISIONAL SPECIFICATION.
Improvements in or relating to the Planing or Working of Wood.
We, HENRY JELLEY of 27 Malva Road, Wandsworth in the County of Surrey,
Pneumatic Tyre Manufacturer, and Ross DORRETT of 4 Cologne Road, St. John's
Hill, Wandsworth, in the County of Surrey, Mechanical Engineer, do hereby
declare the nature of this invention to be as follows:-
This invention relates to the planing, grooving or similar working of wood
whereby a finish superior to that obtained by the present apparatus can be
obtained.
In carrying out the invention we employ a tool specially constructed for the
purpose which produces a much cleaner and smoother finish than can be obtained
For example with the ordinary wood planing machines at present in use.
This tool would consist substantially of a steel disc cut upon its periphery
somewhat like the teeth of a circular saw, but much shallower and preferably
with the cutting edges lying at an angle to the axial line of the saw spindle;
one or both faces also of the disc are grooved in a somewhat similar manner
the cutting edges of these grooves radiating from the centre of the disc, and
each terminating at the cutting edge of one of the peripheral teeth.
By this
means this disc or saw may be used for cutting or planing upon one or both
sides and upon the edge and can also be used for grooving and for similar work
while we find that owing to the quick succession of the teeth and the absence
of the comparatively large gaps which exist between the cutting blades of
the cutters employed on the ordinary planing machines a smoother surface is
produced.
Instead of forming the tool in disc-shape as above described we may employ a
ring connected with a cast iron or other centre or driven in any convenient manner
and cut as before described.
If desired and particularly for surfacing purposes we may make the cutter in the
form of a roller with grooves cut along its outer surface like a large circular cutter
or instead of a roller this cutter may take the form of a cylinder with teeth set close
together upon or in its surface. The teeth may be set angularly or spirally upon
the surface of the roller or cylinder and the latter may be made in segments or its
working portion may be in segments connected with any suitable supporting
arrangements for example a couple of end discs screwed together upon a central
shaft or otherwise firmly connected. In all cases instead of the teeth being cut out
of a solid they may be independent cutters connected in any convenient manner to
the disc ring or equivalent, and any of these tools may be made in portions or
segments.
In surfacing with the disc arrangement the chief part of the cutting is done
with the teeth upon the periphery of the disc the teeth upon the side faces
serving more for smoothing or trueing purposes than for absolute cutting.
Dated this 5th day of February 1895.
BOULT & WADE,
Agents for the Applicants.

page_text: Improvements in or relating to the Planing or Working of Wood.
We, HENRY JELLEY of 27 Malva Road, Wandsworth, in the County of Surrey,
Pneumatic Tyre Manufacturer, and Ross DORRETT, of 4 Cologne Road, St. John's
Hill, Wandsworth, in the County of Surrey, Mechanical Engineer, 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 relates to the planing, grooving or similar working of wood whereby
a finish superior to that obtained by the present apparatus can be obtained.
In carrying out the invention we employ a tool specially constructed for the
purpose which produces a much cleaner and smoother finish than can be obtained
for example with the ordinary wood planing machines at present in use.
The invention will be best understood by reference to the accompanying drawings,
in which
Figs. 1 and 2 are respectively a face view and an edge view of one form of the
tool construction according to this invention.
This tool as shown in the drawings would consist substantially of a steel disc A
cut upon its periphery somewhat like the teeth of a circular saw, but much shallower
and preferably with the cutting edges or teeth B lying at an angle to the axial line C
Fig. 2 of the saw spindle; one or both faces also of the disc A are grooved in a
somewhat similar manner the cutting edges D of these grooves radiating from the
centre of the disc, and each terminating at the cutting edge of one of the peripheral
teeth B as shown in Fig. 1; in the disc shown in the drawings only one of the faces
is grooved or formed with teeth D. By this means this disc or saw A. when rotated
in the direction indicated by the arrows may be used for cutting or planing upon
each of its toothed sides or faces and upon the edge and can also be used for
grooving and for similar work while we find that owing to the quick succession of
the teeth and the absence of the comparatively large gaps which exist between the
cutting blades of the cutters employed on the ordinary planing machines, a smoother
surface is produced than by those machines.
Instead of forming the tool in disc-shape as shown in the drawings we may employ
a ring connected with a cast iron or other centre or driven in any convenient manner
and cut as before described.
If desired and particularly for surfacing purposes we may make the cutter in the
form of a roller with grooves cut along its outer surface like a large circular cutter
or instead of a roller this cutter may take the form of a cylinder with teeth set
close together upon or in its surface. The teeth may be set augularly or spirally
upon the surface of the roller or cylinder and the latter may be made in segments
or its working portion may be in segments connected with any suitable supporting
arrangements for example a couple of end discs screwed together upon a central
shaft or otherwise firmly connected. In all cases instead of the teeth being cut out
of a solid they may be independent cutters connected in any convenient manner
to the disc ring or equivalent, and any of these tools may be made in portions or
segments.
In surfacing with the disc arrangement the chief part of the cutting is done with
the teeth upon the periphery of the disc the teeth upon the side faces serving more
1or smoothing or trueing purposes than for absolute cutting.
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 cutter for trueing or surfacing wood consisting of a disc such as A having

page_text: teeth such as B and D substantially as and for the purpose described and illustrated
in the accompanying drawings.
2. A cutter for trueing or surfacing wood having many relatively small cutting
teeth in close succession whereby the drawbacks of ordinary cutters with the
cutting edges far apart and comparatively large gaps between are avoided.
3. A wood-working tool consisting of a disc roller drum or equivalent in one piece
or built up in segments having cutting edges or teeth formed thereon each cutting
edge or tooth extending along the periphery at an angle to the axis of rotation and
forming a continuation of other cutting edges or teeth radiating from and per-
pendicular to the axis of rotation substantially as described and illustrated in the
accompanying drawings.
4. A combined wood-sawing grooving and planing tool substantially as described
and illustrated in the accompanying drawings.
Dated this 1th don EN