Improvements in or connected with Planing Machines.
Year: 1896

page_text: Date of Application, 17th June, 1896
Complete Specification Left, 17th Mar., 1897-Accepted, 1st May, 1897
PROVISIONAL SPECIFICATION.
Improvements in or connected with Planing Machines.
We, HERBERT WHITEHOUSE, of 6 Phoenix Street, West Bromwich, and
THOMAS BETTS, of 88 Jervoise Street, West Bromwich, and J. and S. ROBERTS
LIMITED, West Bromwich, all in the County of Stafford, Engineers, do hereby
declare the nature of this our invention to be as follows:-
This invention relates to improvements in or connected with planing machines,
and its object is to provide an improved combination and arrangement of mechanism
whereby curved or other nonstraight surfaces may be planed without the usual loss
of time consequent upon the tool having to traverse an uncutting field. As is well
known the bed of the machine travels in a straight line, while the tool or tools are
carried upon fixed columns or brackets so that if the body to be planed-and which
is secured to the bed-has a curved or other similar surface, the tool has to travel
over a large area where no cutting takes place, and it is to obviate this waste of
time that we have made this our invention.
Particularly is this our invention applicable to the planing of the curved flanges
which form the segmental portions in building up circular tanks or other similar
structures. It consists broadly as follows:-
At a point immediately below the cutting point of the tool, suitable fixed
bearings are provided, in or upon which is carried a roller or rollers. Up in the
bed of the machine is now provided a fulcrum bearing or bearings (preferably one
at each edge of the bed). Hinged or pivoted upon these bearings is further
carried a cradle whose underside (which is in one therewith or attached thereto) is
curved or shaped to agree with the curvature of the body to be planed. The free
end of this cradle is supported by and travels upon the roller or rollers aforesaid:
hence, as the bed of the machine is traversed the body to be planed is automatically
raised and lowered, at the point of tool contact, so that the said tool follows the
shape of the said body. One or more cutting tools may be made to operate
simultaneously. In some cases rollers having a downward pressure may be used to
keep the body to its work or to steady the same. Also where a quantity of similar
bodies have to be similarly treated they may be duplicate.l upon the same bed in
such a manner that the return or idle travel of the one may serve as the forward or
cutting stroke of the other, or if desired the tool boxes may be reversible
as is usual.
Dated this 16th day of June 1806
CHARLES T. POWELL,
Applicants' Agent.
COMPLETE SPECIFICATION.
Improvements in or connected with Planing Machines.
We, HERBERT WHITEHOUSE, of 6 Phoenix Street, West Bromwich, and
THOMAS BETTS, of 88 Jervoise Street, West Bromwich, and J. and S. ROBERTS
LIMITED, West Bromwich, all in the County of Stafford, Engineers, do hereby
| Price 8d.]

page_text: 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 improvements in or connected with planing machines,
and its object is to provide an improved combination and arrangement of mechanism
whereby certain curved or other nonstraight surfaces may be planed without the
usual loss of time consequent upon the tool having to traverse an uncutting field.
As is well known the bed of the machine travels in a straight line, while the tool
or tools are carried upon fixed columns or brackets so that if the body to be
planed and which is secured to the hed-has a curved or other similar surface, the
tool has to travel over a large area where no cutting takes place, and it is to
obviate this waste of time that we have made this our invention.
Particularly is this our invention applicable to the planing of the curved flanges
which form the segmental portions in building up circular tanks or other similar
structures.
In order to more clearly explain this our invention we have appended hereunto
illustrative drawings upon which are figures, and numbers. of reference, similar
numbers referring throughout to the same thing or part
Fig. 1, is a side view of parts of a planing machine showing the combination
therewith of mechanism constituting this our invention...
Fig. 2, is an end view of our invention.
4, is the fixed hed of the machine. 5, 5, are the upright sides or frame fram
which the tool box or boxes 6 are carried in the usual manner. 7, 7, are the
cutting tools. 8, is the curved body whose side edges 9, 9, are to be planed. This
bedy 8 is shown as a sample only, for it will be readily seen that many varying
shapes may be similarly dealt with.
At a point immediately below the cutting point of the tool 7 suitable fixed
bearings 10, 10 are secured to the upright frames 5, 5, upon which are carried the
rollers, 11, 11. Upon the bed of the machine is now provided a fulcrum bearing
or bearings 12, (preferably one at each edge of the bed). Hinged or pivoted upon
these bearings is further carried a cradle 13, whose forward end 14, is free to rise
from the table 15.
To this cradle is secured the former 16 or in some cases if preferred the said
former may be in one with the said cradle. The underside edge 17 of this cradle
is curved or shaped to agree with the curvature of the body to be planed. This
cradle rests upon, and is supported by, and travels upon the roller or rollers 11,
aforesaid; hence as the bed 15 of the machine is traversed, the budy 8 to be planed
is automatically raised and lowered by reason of travelling over the fixed
rollers 11, 11, at the point of tool contact, so that the said tool thereby follows the
shape of the said body. This will be seen by the position of the cradle shown in
dotted lines in Fig. 1, where the table 15 is supposed to have travelled so far on its
journey.
One or more cutting tools may be made to operate simultaneously. In some
cases rollers having a downward pressure may be used to keep the body steady to
the cutting operation.
For
Where a quantity of similar bodies require similar treatment they may be
reversely duplicated upon the same bed in such a manner that the return or idle
travel of the one may serve as the forward or cutting stroke of the other.
instance the bed 15, would be about double its ordinary length. The upright
sides,, would also be arranged to carry a second tool box reversely situated to
that shown at 6, that is, to face the other end of the machine. Also the
bearings 10 and 12, the rollers 11, and the cradle 13 and former 16 would be each
reversely duplicated upon the other end of the bed 15, so that as the bed 15 was
travelling back idly from the one tool box, it would be carrying the body at the
other end forward under the cutting action of the tool or tools at that end of the
machine and vice versa.

page_text: Having now particularly described and ascertained the nature of this our said
invention, and in what manner the same is to be performed, we declare that.
what we claim is :-
In planing machines the combination with the table 15 and tool box 6 and their
accessory parts, of the pivot bearings 12 and hinged cradle 13 adapted to the shape.
of body 8, and fixed rollers 11, 11, all constructed and operating substantially as set.
forth and shown and for the purposes specified.
Dated this 16th day of March 1897.
CHARLES T. POWELL,
12 Cherry Street, Birmingham, Applicants' Agent..