Improvements in Hand Planes.
Year: 1893

page_text: Date of Application, 19th Apr., 1893-Accepted, 2nd June, 1893
COMPLETE SPECIFICATION.
Improvements in Hand Planes.
I, GEORGE LEADBETTER, of Homend Street, Ledbury, in the County of
Herefordshire, Carpenter, 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 improvements in hand planes for grooving and stop-
grooving, chamfering and stop-chamfering.
Referring to the accompanying three sheets of drawings,
Fig. 1 shows a hand plane constructed according to this invention, Fig. 2 a
vertical section at the line AB,
Fig. 3 a section of an extra front block of different shape to suit the surface of
the wood to be worked,
Fig. 4 cutter to be secured to the said front block,
Figs. 5 and 6 cutting irons for different size grooves,
Fig. 7 is a sectional view of the V guide for the front block,
Fig. 8 the tool arranged for chamfering and Fig. 9 a vertical section of the same
through the line X Y.
As shown in the drawings this tool consists of a body or stock a provided with a
suitably shaped handle b. The forward end of this stock is provided with an
oblique ridge of V or other suitable shape c shown separately at Fig. 7 and in
dotted lines at Fig. 1. The stock is also slotted at d in a line parallel to the said
groove. This slot is for the passage of a screw employed to clamp the front
block e to the stock. This block is provided with a V shaped groove arranged to
receive the correspondingly shaped ridge on the stock so as to prevent its turning
upon the screw and to allow of its position being adjusted by slackening the screw
and sliding the block along the ridge so that it may project more or less below the
lower surface of the stock. To the inner face of this sliding block e is secured the
slide cutters which are slotted so that it may be adjusted to cut more or less into
the material operated upon. The rear end of the stock a is made of greater width
so as to allow of a projecting face to which the plane iron g may be adjustably
secured. To the side of this wider part of the stock is secured by means of a
screw or slot or in any other suitable manner the additional piece h Fig. 1 which
may be adjusted in the same manner as the block e so that its lower surface may
lie in with that of the said block when the tool is to be used as an ordinary
grooving plane. For stop-grooving the plate h is secured in position in full lines
in the drawings. When it is required to use the tool for chamfering purposes an
additional piece ; Figs. 8 and 9 is secured to the lower surface of the rear part of
the stock in the manner shown at Fig. 9 or in any other suitable way. This guides
the tool over the edge of the work and insures the chamfering being made at the
required angle.
By clamping a guiding strip to the work to be grooved, a groove can be cut in
any direction, the block e being adjusted and the iron y set according to the depth
of groove to be cut.
The position of the cutting iron g and side cutters fallows
the tool to take a downward and then forward cut.
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 :-
The herein before described improvements in hand planes whereby they may be

page_text: employed for grooving stop-grooving, chamfering, and stop-chamfering substan-
tially as set forth and described and illustrated by the accompanying drawings.
11000
CASTLE SMITH,
Invention" Office, 54, Fleet Street, London, F.C.,
Agent for the Applicant.