AN IMPROVED ARRANGEMENT FOR PREVENTING WEAR OF THE CUTTING Edge of PLANE IRONS DURING THE RETURN STROKE
Year: 1884

page_text: ALEXANDER HARRIS VALDA 3 Adie Road The Grove Hammersmith W.
Middlesex Engineer do hereby declare the nature of my Invention for AN
IMPROVED ARRANGEMENT FOR PREVENTING WEAR OF THE CUTTING Edge of
PLANE IRONS DURING THE RETURN STROKE, to be as follows: →
The object of my Invention is to stop that portion of blunting and wear of bench
planes due to the non cutting stroke of the same. I insert flush with the bottom
and end of the plane a metallic frame the same width as the plane having. on two
parallel sides tapering rails, with the bottom sides flush with the bottom of the
frame and the top sides oblique for an axial ending roller or slide to work on, the
shoulders of which I fit nicely between the rails formed sufficiently deep to allow
the roller or slide to project slightly beyond the bottom of the frame when bearing
on the thicker ends of the rails. I enclose the roller or slide between the rails with
an oblique cover which is parallel with the top edges of the rails the sides of the.
cover I fit nicely over the shoulders of the roller or slide. I also cut away enough
of the sides to give room for the axle of the roller or slide to work, the cover is
formed sufficiently deep to prevent the roller or slide being pushed beyond the
bottom of the frame when the axle of the roller is bearing on the thicker ends of
the rails, in order to keep the roller down when not projecting beyond the bottom
of the frame. I form an opening in the cover at right angles with and over the
centre of the roller or slide to receive a spring which is rivetted on the shallow end
of the cover, the rivet head being countersunk in the under side of the cover. in
order to keep it clear of the roller or slide. Where a slide in the place of roller is
used I form two guide rails to fit nicely in grooves formed in the slide, the slide
having a semicircular or any suitable bottom.
This contrivance is adaptable when slightly modified to metallic planes also. To
prevent the noisy action of the roller when coming in contact with the frame a
cushion of leather is attached to the frame.
The other end of the bottom of the plane is fitted with a metallic plate flush with
the bottom or face of the plane.
נ.י.ת
2004

page_text: ALEXANDER HARRIS VALDA of 3 Adie Road The Grove Hammersmith Middlesex
Engineer do hereby declare the nature of my Invention for AN IMPROVED
ARRANGEMENT FOR PREVENTING WEAR OF THE CUTTING EDGE OF PLANE IRONS
DURING THE RETURN STROKE, and in what manner the same is to be performed,
to be particularly described and ascertained in and by the following statement:-
The object of my Invention is to stop that portion of blunting and wear of bench
I insert flush with the bottom
planes due to the non cutting stroke of the same.
and end of the plane a metallic frame the same width as the plane, baving on two
parallel sides tapering rails, with the bottom sides flush with the bottom of the
frame and the top sides oblique for an axial ending roller or slide to work on the
shoulders of which I fit nicely between the rails formed sufficiently deep to allow
the roller or slide to project slightly beyond the bottom of the frame when bearing
on the thicker ends of the rails. I inclose the roller or slide between the rails with
an oblique cover which is is parallel with the top edges of the rails the sides of the
cover fit nicely over the shoulders of the roller or slide. I also cutaway enough
of the sides to give room for the axle of the roller or slide to work, the cover is
formed sufficiently deep to prevent the roller or slide being pushed beyond the
bottom of the frame when the axle of the roller is bearing on the thicker ends of
the rails, in order to keep the roller down when not projecting beyond the bottom
of the frame I form an opening in the cover at right angles with and over the
centre of the roller or slide to receive a spring which is riveted on the shallow end
of the cover the rivet head being countersunk in the under side of the cover in
order to keep it clear of the roller or slide, where a slide in the place of roller is
used I form two guide rails on the under side of the cover to fit nicely in groves
formed in slide, to prevent the noisy action of the roller or slide when coming in
contact with the frame a cushion of leather or any suitable material is fastened
down with the cover at the back and front of the roller or slide, the other end of
the bottom of the plane is fitted with a metallic plate flush with the bottom or face
of the plane. This contrivance is adaptable when slightly modified to metallic
planes also. That this my said Invention may be the more readily seen and
understood I have hereunto annexed a Sheet of Drawings in partial illustration of
my Invention like letters marked thereon have reference to similar parts. Figure 1
is a plane with one of the said contrivements fitted thereinto. Figure 2 is a plan
of the said contrivance without the cover. Figure 3 is a section through A A in
Figure 2 with the cover in position and showing the position of roller in dotted
line when bearing on the thicker ends of the rails. Figure 4 is a section
through B B in Figure 2 with cover. I wish it understood that I do not confine
my self to the precise details or relative demensions herein before set forth and
described. Having now particularly described and ascertained the nature of my
said. Invention and in what manner the same is to be performed, I declare that
what I claim is: The frame formed with oblique rails with the roller or slide and
the corresponding cover and the padding substancially as herein before set forth
and described.