A New or Improved Device for Adjusting the Cutting Irons or Blades of Planes, Spoke Shaves, and the like.
Year: 1899

page_text: Date of Application, 10th Mar., 1899
Complete Specification Left, 8th Dec., 1899-Accepted, 13th Jan., 1900
'NOLIVORMIOLIN TVNOJŠIA OILI
PROVISIONAL DI BULTIUALION.
A New or Improved Device for Adjusting the Cutting Irons or Blades
of Planes, Spoke Shaves, and the like.
We, ALFRED THOMAS SOUTHERN, of 68, Clifton Road, Cabinet Tool Viewer,
and CHARLES FREDERICK SPILSBURY, of 70, Clifton Road, Baker, both in Aston,
Birmingham, in the County of Warwick, do hereby declare the nature of this
invention to be as follows:-
This invention relates to planes, spoke-shaves and other similar cutting tools;
and consists in a device which forms a simple and efficient means of adjusting
the cutting edges of the irons or blades used therein.
It may be slightly varied in form to suit each tool but consists essentially as
follows: A square screw the lower end of which is pivotally attached to the
tool, in the case of a plane being fixed inside the mortice in such manner as to
be capable of being rocked laterally through a small angle. Over this screw fits
a slide having a square hole formed in its horizontal part which fits loosely the
square screw. The slide has a vertical part divided in its centre to allow the
neck of a nut to enter and turn freely therein. Immediately below this the
vertical part of the slide has an enlarged opening in which fits loosely a collar
or flange formed on the end of the nut in such manner that the slide is caused to
move longitudinally in either direction with it.
The nut has a female thread cut in its bore which engages with the male thread
of the square screw and consequently when the nut is turned in either direction
it and the slide are caused to rise or fall as desired.
The cutting iron or blade of the implement has a slot formed in it in which fits
closely a projecting part of the slide; by this means the iron or blade is caused
to move with the slide being thus capable of an exact and simple adjustment
by simply turning the nut with the fingers.
The lower end of the screw being pivotally connected to the implement the
iron or blade can be adjusted laterally so as to produce an equal adjustment along
the whole cutting edge.
Instead of a square screw, one of any other section may be employed, which
fitting a similarly shaped hole in the slide prevents the latter turning when the
nut is turned.
Dated this 10th day of March 1899
WILLIAM J. MUNDEN,
75, Chancery Lane, London, Agent for the Applicant.
A New or Improved Device for Adjusting the Cutting Irons or Blades
of Planes, Spoke Shaves, and the like.
We, ALFRED THOMAS SOUTHERN, of GS, Clifton Road, Cabinet Tool Viewer,
and CHARLES FREDERICK SPILSBURY, of 70, Clifton Road, Baker, both in Aston,
[Price 871

page_text: --Birmingham, in the County of Warwick, 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 planes, spoke-shaves, and other similar cutting tools;
and consists in a device which forms a simple and efficient means of adjusting
the cutting edges of the irons or blades used therein.
It may be slightly varied in form to suit each tool, but consists essentially as
follows: A square screw, the lower end of which is pivotally attached to the
tool, in the case of a plane being fixed inside the mortice in such manner as to
be capable of being rocked laterally through a small angle. Over this screw fits
a slide having a square hole formed in its horizontal part which fits loosely the
square screw. The slide has a vertical part divided in its centre to allow the
neck of a nut to enter and turn freely therein. Immediately below this the
vertical part of the slide has an enlarged opening in which fits loosely a collar
or flange formed on the end of the nut in such manner that the slide is caused to
move longitudinally in either direction with it.
The nut has a female thread cut in its bore which engages with the male thread
of the square screw and consequently when the nut is turned in either direction
it and the slide are caused to rise or fall as desired.
The cutting iron or blade of the implement has a slot formed in it which fits
closely a projecting part of the slide; by this means the iron or blade is caused
to move with the slide being thus capable of an exact and simple adjustment
by simply turning the nut with the fingers.
In the accompanying drawing a typical form of the device is shewn applied
to a carpenters jack plane.
Fig. 1 is an elevation of the adjusting device applied to a plane.
Fig. 2 is a side elevation, and
Fig. 3 a front elevation of same.
Fig. 4 is a view of a plane iron.
Xindicates the plane, Y the mortice, and Z the handle.
The plane iron A is of the usual type and fitted to the plane in the usual
manner; it has however a slot or recess cut in its upper part for a purpose to be
hereinafter described. To the body of the plane near the upper part of the
mortice, and immediately behind the plane iron is attached a screw B by means of a
pivot b which allows the screw to be moved laterally on this pivot in a plane
which is transverse to the length of the plane X. The screw is preferably square
and consequently its thread is cut only upon the angles. Sliding freely upon
this screw, which passes through a square hole in its lower horizontal part e, is a
slide C the screw and hole being of such dimensions as to allow the slide to
move freely upon the screw in a longitudinal direction but preventing its turning
on it.
The vertical part has formed in it an opening C¹ sufficiently large to
admit of the lower flange d of the nut D turning freely in it. The vertical part.
of the slide C has projecting parts the distance between which is less than the
diameter of the lower flange d of the nut D. This latter has a neck which fits
loosely (between the parts ²) and between an upper flange which is milled on
part of its edge so as to enable it to be turned by the fingers and the flange d.
The nut D has a female screw formed in its centre which engages with the
threads of the screw B. The slide C being retained in position by the square
screw, and the nut D being necessarily retained in the same line, it is obvious
that when a longitudinal movement of the nut D upon the screw B is produced
by turning the nut, the slide Cwill be moved with it by reason of the projec-
tions or the horizontal part c pressing upon the lower flange d.
The horizontal part has a projection which fits-loosely in the slot or recess
in the back of the plane iron before referred to, consequently when the nut D is
turned it moves the slide C and the plane iron A upwards or downwards thus
enabling a perfect fine adjustment to be obtained without employing the customary
crude method of hammering.

page_text: More than one projecting part c³ may be employed and a corresponding number
of slots or recesses formed in the cutting iron. Or the ordinary slots H in plane
irons may have lateral slots which serve the same purpose. This is shewn in
Fig. 4.
The screw B is in some cases fitted in front of the plane iron occupying then
the centre of the mortice.
For spoke-shaves and other tools the device may be slightly varied; thus the
method of connecting the slide to the cutting iron would be slightly different,
retaining however in all cases the essential features of our invention, which con-
sists in a screw, a nut, and a slide connected to the cutting iron or blade.
Instead of a square screw one of any other section may be employed the slide
having a correspondingly shaped hole.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, I declare that what
I claim is:
1.A device for adjusting the cutting irons or blades of planes, spoke-shaves
and the like, substantially as described.
2. In devices for adjusting the cutting irons or blades of planes, spoke-shaves
and the like, the combination of a screw one end of which is attached to the tool,
a nut turning on the same, and a slide moved longitudinally by the nut and
moving the iron or blade, substantially as shewn and described.
3. In devices for adjusting the cutting irons or blades, of planes; spoke-shaves
and the like, the combination of a screw one end of which is pivotally attached
to the tool, a nut turning on the same, and a slide moved longitudinally by the
nut and moving the iron or blade, substantially as shewn and described."
Dated this 8th day of December 1899.
WILLIAM J. MUNDEN,
75, Chancery Lane, London, Agent for Applicant.