Year: 1895

page_text: Date of Application, 30th July, 1895-Accepted, 21st Sept., 1895
A communication from WILLIAM DUFFIELD, of London, in the County of
Middlesex, in the Province of Ontario, Dominion of Canada, Gentleman."
I, ALFRED JULIUS BOULT, of 323 High Holborn, in the County of Middlesex,
Chartered Patent Agent, 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 :-
The invention relates to a very simple but handy and convenient pocket device
for accurately and speedily sharpening lead pencils with needle or chisel point
without danger of breaking the lead or otherwise injuring the pencil.
The invention consists, First, of a tubular cutter, an arm pivotally connected
to said cutter and provided with an abrading surface on its free end in front of
the tubular cutter.
Second A tubular cutter, and a frame supported thereon, and a spring arm
pivoted to said frame and provided with an abrading surface on its free end in
front of the tubular cutter.
Third A tubular cutter, and a collar on said cutter, having flanges extending
from said collar, a frame pivoted to the said flanges, and an arm secured at one
end to said frame and provided with an abrading surface on its free end in front
of the tubular cutter.
By reference to the accompanying drawings,
Fig. 1, represents a side view of an arm, without abrading surface.
Fig. 2, is a similar view with abrading surface attached.
Fig. 3, is an edge view of the same.
Fig. 4, represents a front view of the arm duplicated opposite the first one.
Fig. 5, represents two arms with abrading surfaces, connected to a tubular
cutter.
Fig. 6, represents a tubular cutter, a collar on the cutter, and flanges extending
from said collar, a frame pivoted to the said flanges, and two arms secured to said
frame, with abrading surface on their free ends in front of the tubular cutter.
Fig. 7, is side view of the saine.
In the drawings, A, Fig. 1, represents an arm, which may he stamped out of
sheet metal in the form shown, or formed in any other convenient manner, and
having on its lower sides two projections b, b, and an opening c.
d. Fig. 2, represents an abrading surface attached to the bottom portion of the
said arm, by the projections b, b, bent around the said abrading surface, which may
consist of thin steel having a file surface, or any other equivalent material
possessing a like abrading surface.
The upper half of the said arms A are vertical and the lower half are sprung
inwardly so that the abrading surfaces d when two are placed opposite almost
touch at their lowest eud, but retain sufficient elasticity to adapt themselves to the
lead of the pencil during the operation of sharpening the same.
E, is a tube, having at its front end a steel conical shaped cutter, having a
longitudinal opening on one side of the cutting edge for the discharge of shavings
from the pencil as the wood is cut away; the said tube is pivotally secured to one
or both arms A by pivots g, or rigidly, but I prefer the former as the tube is
thereby allowed to oscillate which will give a chisel point to the lead of a pencil
D

page_text: when operated in that manner, as desired, or a round or needle point by rotating
the pencil in the tube.
It will be understood that the said apparatus is capable of modification in
various ways and degrees other than the ways described, within the scope and
limits of my invention-for instance, a modified arrangement or organization of the
mechanism is shown in Figs. 6 and 7, which corresponds to Fig. 5, and which may
be described as follows: A collar h is secured on the cutter E, and flanges i
secured to and extending from the collar and a frame pivoted to the said Hanges,
and the two arms A, A, pivotally or otherwise secured to the said frame, with
abrading surfaces d at their free ends, in front of the tubular cutter.
The operation of sharpening a pencil with the above described device is very
simple but effectual, the pencil is inserted in the tube E and pushed down to its
lower end and rotated against the cutter, this movement causes the wood of the
pencil to be cut away uniformly in a conical shape, then the lead comes in contact
with the abrading surface attached to the arm or arms aud grinds it to a needle
point, if so desired; if a chisel point is required, then the tube is oscillated back
and forth, which imparts that shape to the lead.
Having now particularly described and ascertained the nature of the said
invention as communicated to me by my foreign correspondent, and in what
manner the same is to be performed, I declare that what I claim is,—
1st. In a pencil sharpener, the combination with a tubular cutter, of one or more
arms pivotally connected to said cutter and provided with an abrading surface or
surfaces on its or their free end or ends in front of the tubular cutter, substantially
as and for the purpose described.
2nd. In a pencil sharpener, the combination with a tubular cutter, of a spring
arm connected to said cutter and provided with an abrading surface on its free
end in front of the cutter, substantially as and for the purpose specified.
3rd. In a pencil sharpener, the combination with a tubular cutter, of a spring
arm pivotally connected to said cutter, and provided with an abrading surface on
its free end in front of the cutter, substantially as and for the purpose specified.
4th. In a pencil sharpener, the combination with a tubular cutter, of a frame
supported thereon, and a spring arm pivoted to said frame and provided with an
abrading surface on its free end in front of the tubular cutter, substantially as and
for the purpose specified.
5th. In a pencil sharpener, the combination with a tubular cutter, of a collar on
said cutter, flanges extending from said collar, a frame pivoted to said flanges and
an arm secured at one end to said frame and provided with an abrading surface on
its free end in front of the tubular cutter, substantially as described.
Dated this 30th day of July 1895.
BOULT & WADE,
Agents for the Applicant.