IM- PROVEMENTS IN PENCILS OR PENCIL HOLDERS
Year: 1878

page_text: LETTERS PATENT to John Clayton Mewburn, of 169, Fleet Street, in the City
of London, Patent Agent and Consulting Engineer, for the Invention of "IM-
PROVEMENTS IN PENCILS OR PENCIL HOLDERS." A communication from abroad
by Lothaire de Faber, of Stein, near Nuremberg, Bavaria.
Sealed the 13th May 1879, and dated the 29th November 1878.
PROVISIONAL SPECIFICATION left by the said John Clayton Mewburn at
the Office of the Commissioners of Patents on the 29th November 1878.
JOHN CLAYTON MEWBURN, of 169, Fleet Street, in the City of London, Patent
Agent and Consulting Engineer. "IMPROVEMENTS IN PENCILS OR PENCIL HOLDERS."
[A communication from abroad by Lothaire de Faber, of Stein, near Nuremberg,
Bavaria.]
This Invention of improvements in pencils or pencil holders cousists of a special
inode of adjusting and securing the "lead" or pencil proper in its holder or case;
this is effected, as hereinafter described, by means of a small binding or tightening
ring, which secures the lead in its holder or case near the point.
The holder is made by preference of wood, but it may be made of other suitable
material, and is of the forin and size of ordinary wooden pencils, except that near
the point or lower end it is in the form of two truncated cones with their bases
opposed to each other. In this portion of the holder are three (or other suitable
number of) longitudinal slits, which divide it into three parts, forming a nipper.
There is a hole or channel in the centre of the holder which may extend its whole
[Price 6d1

page_text: length or nearly so to receive the lead, which when in use will project beyond
the lower end of the holder. At this end of the holder I fit a metal or other ring,
which is free to slide on the upper of the two cones before referred to. When it is
made to slide towards the base or broader end of the cone it causes the parts of the
nipper to approach nearer together, and therefore to firmly hold the lead in place.
On the other hand by shifting the ring to the narrower end of the cone the nipper
opens, owing to its natural elasticity, and the lead being then loose can be adjusted
in the holder or withdrawn altogether if desired.
The ring may be plain internally, but by making it with screw grooves it will
have a better hold on the material of which the holder or case is made.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said John Clayton Mewburn in the Great Seal Patent Office on the
16th May 1879.
JOHN CLAYTON MEWBURN, of 169, Fleet Street, in the City of London, Patent
Agent and Consulting Engineer. "IMPROVEMENTS IN PENCILS OR PENCIL HOLDERS."
A communication from abroad by Lothaire de Faber, of Stein, near Nuremberg,
Bavaria.
This Invention of improvements in pencils or pencil holders consists of a special
mode of adjusting and securing the "lead" or pencil proper in its holder or case; this
is effected, as hereinafter described, by means of a small binding or tightening ring,
which secures the lead in its holder or case near the point.
Figure 1 of the annexed Drawings is an external view; Figure 2, a longitudinal
section; and Figure 3 a cross section of a pencil or pencil holder made according to
this Invention.
The holder a is made by preference of wood, but it may be made of other suit-
able material, and is of the form and size of ordinary wooden pencils, except that
near the point or lower end b it is of a special conformation, viz., in the form of two
truncated cones, as is seen in the Figures. In this portion of the holder are three
(or other suitable number of) longitudinal slits which divide it into three parts,
forming a nipper. There is a hole or channel in the centre of the holder which may
extend its whole length or nearly so to receive the lead c, which when in use will
project beyond the end of the holder. At this end of the holder I fit a metal
or other ring & which is free to slide on the upper of the two cones. When it is
made to slide towards the base or broader end of the cone it causes the parts of the
nipper to approach nearer together, and therefore to firmly hold the lead in place.
On the other hand by shifting the ring the narrower end of the cone the nipper
opens owing to its natural elasticity, and the lead being then loose can be adjusted
in the holder or withdrawn altogether if desired.
The ring may be plain internally, but by making it with screw grooves it will
have a better hold on the material of which the holder or case is made.
The holder will of course serve for any number of "leads" in succession.
And having now described the nature of the said Invention, and in what manner
the same is to be performed, I declare that I claim,―
The manufacture of pencil or pencil holders in which the "lead" is secured in the
manner herein before described.
In witness whereof, I, the said John Clayton Mewburn, have hereunto set my
hand and seal, this Sixteenth day of May, One thousand eight hundred and
seventy nine
J. C. MEWBURN. (L.S.)