Planes.
Year: 1890

page_text: being date of first Foreign Application (in 20th May, 1890
Switzerland),
Date of Application (in the United Kingdom), 15th Nov., 1890
Complete Specification Left, 15th Nov., 1890-Accepted, 20th Dec., 1890
Date of Application (in the United Kingdom), 15th Nov., 1890
Complete Specification Left, 15th Nov., 1890-Accepted, 20th Dec., 1890
COMPLETE SPECIFICATION.
Planes.
I, JOHANN HABLITZEL of Basel, Switzerland, Manufacturer, 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 :-
It is well known that the plane irons of planes such as are generally in use, are
wedged together with the cap plate fixed thereon with a screw firmly into the
wooden stock by means of a wooden wedge or key. In this construction, to give
the iron its proper position the iron, the wedge or the stock is struck with a hammer,
and this tends in time to damage the three parts of the plane; also when the plane
iron has to be sharpened the cap has to be unscrewed and afterwards again screwed
on and adjusted to its proper position, occasioning much loss of time.
The plane which is the subject of the present invention has been constructed with
a view to avoid these evils.
This plane consists of a wooden stock in the recess of which is fixed the metal bed
of the plane iron; the iron is held in the bed by a spring plate which replaces the
cap, while by the adjustment of a screw nut on the screw spindle of the plane iron
bed (into an annular groove of which nut the upper rectangularly bent end of the
iron enters) the position of the latter and consequently its penetration into the wood
can be regulated.
The accompanying drawings shews the construction of the plane in detail.
Figures 1 and 3 showing two longitudinal sections and Figure 2 showing a plan
view of the same.
In the recess a of the wooden stock A is secured by screws, the metal bed B of
the plane iron C, the cutting edge of which appears through the opening a¹ of the
plane bottom.
The plane iron bed B terminates at top in a screw spindle 6 on which is a nut D
serving to adjust the plane iron C.
On the periphery of this nut D is cut an annular groove d into which takes the
edge of a notch in the right angled projection c of the plane iron C, so that, when
the nut D is turned by means of the disc d' formed thereon, the plane iron can be
moved, either forward or backward.
The upward projecting edges E of the plane iron bed B are formed with curved
notches e in which are situated the bearing studs of a cross piece F. This cross
piece F is attached to the curved closing plate G by means of a screw g¹ passing
hrough a slot in the latter so that when the stock bottom becomes worn, and the
havings in consequence hereof become too fine, the closing plate G which serves at
he same time as cap, can be adjusted. The closing plate G terminates at top in a
inge-joint h, on the pin i of which an excentric H provided with a handle & can be
urned. If the handle k of the excentric H is moved into the position shewn in
Figures 1 and 2, the bearing studs f are pressed against the upper surfaces of the
otches e and the lower edge 1 of the closing plate G is pressed tightly against the
lane iron C, and the latter is thus held securely on the bed B by the plate G,

page_text: he cross piece F and the excentric H; the plane iron can however still be adjusted
by turning the nut D.
If on the cther hand the handle k of the excentric H is turned into the position
shewn at Figure 3, the closing plate G can be removed from the stock A together
with the plane iron C.
The above described improvement can naturally be easily adapted to every
description of plane also to those already existing and it possesses the following
advantages over old constructions :-
(1.) Great saving of time when removing and replacing the plane iron, as this can
be effected by two or three movements of the hand.
(2.) The position of the planing iron can be easily and exactly regulated by
turning the nut D.
(3.) The recess a can not be choked with shavings, as it has everywhere smooth
surfaces and is of the same breadth as the plane iron, whilst in the existing
constructions the recess narrows towards the top for forming grooves for the wedge,
causing the recess to be often choked and thus preventing the escape of shavings
through the recess.
(4.) The main parts, such as the bed B with screw and nut D, the closing
plate G with cross piece F and excentric H, can be removed into another stock
when the first one is worn out.
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. A plane consisting essentially of a wooden stock A. in which is fixed a plane
iron bed B, on which the plane iron is held securely in such a manner by means of
a curved closing plate G serving also as cap and provided with an excentric H, that
without removing the closing plate it can be raised and lowered by means of a screw
nut D, in order to cut thinner or thicker shavings, as above described and shewn on
the accompanying drawings.
2. In a plane such as is described in claim 1 :-
(a) The construction of the plane iron bed B provided with a screw on which
is an adjustable nut D provided with an annular groove d into which takes a
right angled projection c of the planc iron C, so that by turning the nut D
the plane iron can be moved at will forwards or backwards, as above
described and shewn on the accompanying drawing.
(b) The bent spring closing plate G with the excentric H having a handle &
and with the cross piece adjustably fixed thereto, whose bearing studs f
enter the curved notches e in the sides E of the plane iron bed B, whereby
the plane iron C is held in such manner on its bed B that the plane iron can
be raised and lowered without removing the closing plate, while by adjustment
of the cross piece F the correct position relatively to the plane iron can
always be imparted to the closing plate G, as above described and shewn on
the drawing.
Dated this 15th day of November 1890.
ABEL & IMRAY,
Agents for the Applicant.