Year: 1892

page_text: The decision of the Comptroller-General, of the 13th day of December 1895, allowed,
under Section 18 of the Patents, &c. Act; 1883, an Amendment of this
Specification.
Deig date UT
Mist Foreign Application
United States of Aerica),
Date of Application (in United Kingdom), 5th Jan., 1892
Complete Specification Left, 5th Jan., 1892—Accepted, 6th Feb., 1892
COMPLETE SPECIFICATION (AMENDED).
I FREDERICK ELIJAH BLAISDELL of Washington Hotel, 7th and Chestnut
Streets, Philadelphia, State of Pennsylvania, U.S.A., Gentleman, do hereby
declare the nature of my invention, 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 this invention is to provide a self-sharpening pencil which may be
used in the same manner as the ordinary lead-pencil and which will bear practically
the same outward appearance.
The said invention is fully disclosed in the following Specification, of which the
accompanying drawings form a part, wherein similar numerals of reference
designate like or equivalent parts wherever found throughout the several views,
and in which--
Figure 1 represents the crayon or marking-lead of this improved pencil about to
be enveloped in its covering;
Fig. 2, a slightly modified form of the construction shown in Fig. 1 ;
Fig. 3, a view of the pencil complete, and
Fig. 4 a view thereof during the operation of sharpening.
Referring to Fig. 1 of the drawings, the numeral 1 designates the lead or marking-
crayon of this improved pencil, and 2 the covering, which constitutes the holder of
the same and in which it is about to be rolled and enveloped. This covering 2
consists of a sheet of some suitable flexible material, preferably parchmentized
paper, of the same length longitudinally as the lead and of sufficient width to form
a roll of about the size of an ordinary lead-pencil when the same is rolled tightly
around the lead or marking-crayon 1. Running diagonally across this sheet 2 is a
series of weakened lines 3, of any desired form, such as creasing or scoring upon
ope or both sides of the sheet, perforation, &c., by which the sheet 2 is made easy
of. separation along each and every one of said lines into narrow strips 4. If
desired, this sheet 2 may be weakened across such narrow strips 4 along the outer
edge thereof at the points marked 5, or only printed or left without any marks.
D57

page_text: whatsoever, the purpose of such weakening or marking being hereinafter more
particularly set forth. It will be noticed upon an examination of Fig. 1 of the
drawings that the bottom strip thereof below the first diagonal weakened line 3,
which strip is designated by the numeral 6, is somewhat triangular in shape and
inuch wider toward the outer than the inner end, and the purpose of so shaping the
same will be hereinafter more fully explained.
In forming this improved pencil a drop of glue or other adhesive substance 7 is
preferably first placed upon the upper left-hand corner of the sheet 2, and the same
is then rolled firmly around the marking lead or crayon 1 in the manner shown, into
the form shown in Fig. 3, and the outer edge of said sheet 2 is then firmly glued or
otherwise fastened to the roll in such manner as to prevent the sheet from unrolling,
the glue 7 serving to prevent the marking lead or crayon 1 from dropping or being
pulled from its casing, and after the roll so formed has been allowed to dry it may
be painted, colored, varnished, or otherwise finished in any manner which may
be desired.
The pencil being complete and in the form shown in Fig. 3, and it being desired
to point the same for use, it is only necessary to separate the outer edge of the first
strip 6 from the roll, either by prying it off where glued or by separating it by the
finger-nail or a pin or similar sharp-pointed instrument along the points marked 5,
where the same is marked or weakened for severance, and to pull gently outwardly
upon the same,
when the sheet 2 will separate along the first weakened line 3,
forming the upper boundary of the triangular strip 6, and when such strip is
entirely removed the point of the marking lead or crayon will be uncovered and
the lower end of the holder or casing will have assumed the conical form shown in
Fig. 4. Thereafter, as the marking lead or crayon 1 wears down through use, in
order to freshly point the same when desired it is only necessary to pull off the
strips 4 one by one in the manner shown in Fig. 4, (one of said narrow strips 4
being therein shown in the process of removal,) and this operation may be repeated
until the pencil is entirely used.
In the form of pencil shown in Fig. 2 the weakened lines 3 are formed straight
across the sheet 2, and the same is wound diagonally upon the marking lead or
crayon 1, by which means the pencil when finished is already formed with a point
and the weakened lines 3 are made to assume the same position upon the roll as in
the form shown in Figs. 1, 3, and 4.
Although it is preferable to use parchmentized paper as a covering or holder for
the marking lead or crayon of this improved pencil, there are many other substances―
Buch as thin wood veneer, cloth, &c.-which may be used, and the invention is
not limited to any particular substance either for covering or for the marking lead
or crayon, as it is evident that this device will be of use as well for all kinds of
chalks and crayons, caustics, &c., and in fact any and all substances in the form of
sticks which it is desired to uncover piece by piece, as it is for lead pencils.
Although the covering or casing 2 of this improved pencil is shown in the form
of a sheet bearing weakened lines, it is evident that such sheet may be entirely
severed along such lines before being rolled upon the lead or crayon, and that the
strips 4 thus formed may then be rolled upon the crayon in the manner described
with precisely the same effect as when in the form of a sheet. Also, instead of
rolling the sheet 2 directly upon the marking lead or crayon 1, the same may be
rolled upon a mandrel and the lead afterward inserted, and in either case the lead
or crayon may or may not be secured within such casing by means of the glue 7 or
in any other desired manner. Again, when the diagonally-rolled sheet shown in
Fig. 2 is used the same may be so shaped as to allow the pencil to be formed with
a straight end at the point when first completed, as is the pencil shown in Fig. 3; or,
if desired, the lower strip 6 of Fig. 1 may be omitted before rolling and the
pencil of that form of construction formed with a point already of a conical shape.
In either form of pencil the weakened or marked points of severance may be
omitted, if desired, and it is evident that many modifications in the form and con-
struction of this improved pencil other than those mentioned herein may be made

page_text: without departing from the scope of said invention, and the same is not limited to
any particular form or mode of construction thereof.
Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed, I declare that what
I claim is :-
1. A pencil having its marking lead or crayon inclosed in a roll of flexible
material weakened or severed at intervals and rolled upon the marking lead or crayon,
substantially as shown and described.
2. A pencil having its marking lead or crayon inclosed in a roll composed of a
sheet of flexible material weakened at intervals, substantially as shown and
described.
3.2. A pencil having its marking lead or crayon inclosed in a roll composed of
a sheet of flexible material bearing weakened lines arranged diagonal to the axis of
the roll, the marking lead or crayon being secured to the roll, substantially as and
for the purposes set forth.
4. 3. A pencil having its marking lead or crayon inclosed in a covering from which
sections in the form of a conical helix may be removed one by one so as to uncover
the marking lead or crayon section by section, substantially as shown and described.
5. 4. A pencil having its marking lead or crayon inclosed in a roll composed of a
sheet of flexible material bearing weakened lines arranged diagonal to tho axis of
the roll, along which the sheet may be separated, substantially as shown and
described.
6. 5. A pencil having its marking lead or crayon inclosed in a roll composed of a
sheet of flexible material bearing weakened lines arranged diagonal to the axis of
the roll, along which the sheet may be separated, the first strip to be torn from the
roll being wider at the outer than at the inner end, substantially as and for the
purposes set forth.
7.6. A pencil having its marking lead or crayon iuclosed in a roll composed of a
sheet of flexible material bearing weakened lines arranged diagonal to the axis of
the roll, along which the sheet may be separated, the outer edge of the sheet being
secured to the roll, substantially as shown and described.
&7. A pencil having its marking lead or crayon inclosed in a roll composed of a
sheet of flexible material bearing weakened lines arranged diagonal to the axis of
the roll, the outer edge of the sheet being secured to the roll and being provided
with weakened points between the diagonal weakened lines, adjacent to such edge,
substantially as shown and described.
Dated this Twenty-seventh day of November 1891
CRUIKSHANK & FAIRWEATHER
62 St. Vincent Street, Glasgow, Agents.