IMPROVEMENT IN PENCIL HOLDERS
Year: 1884

page_text: PROVISIONAL SPECIFICATION.
I, HERBERT JOHN HADDAN, of the firm of Herbert and Company, Patent
Agents, of 67, Strand, in the City of Westminster, Civil Engineer, do hereby
declare the nature of said invention for IMPROVEMENT IN PENCIL HOLDERS,
a communication to me from abroad by Karl Strössenreuther, Manufacturer, of
Nürnberg, in the kingdom of Bavaria, to be as follows:-
This invention relates to holders for movable lead-pencils.
The improved holder chiefly comprises two concentric tubes, of which the inner
tubo contains the pencil, while the outer tube is adapted to clip the same when
pushed forward for use.
The front end of the outer tube is for this purpose made conical and strengthened
on the inside with a short mouth piece, after which it is split axially at several
places.
The rear end of the inner tube projects through the bottom of the outer tube
and has a collar against which presses the rear end of a helical spring enclosed in
the outer tube and abutting with its front end against an inside flange of the outer
tube. The bottom of the outer tube is bent over the collar of the inner tube, so as
to limit the withdrawal of the same caused by the spring. When not in use, the
point of the pencil is withdrawn into the outer tube and behind the mouth piece of
the same. For using the pencil, pressure is applied to the rear end of the inner
tube, so as to bring the front end of the latter in contact with the slit mouth
piece and expand the same, as well as the conical front end of the outer tube to
which it is attached.
When the pressure on the bottom of the inner tube ceases, the latter recedes,
but leaves the front end of the pencil in the split opening of the mouth piece,
which, being thus allowed to close, clips the pencil and holds it fast.
HERBERT & Co.,
Agents.

page_text: COMPLETE SPECIFICATION.
I, HERBERT JOHN HADDAN, of the firm of Herbert and Company, Patent
Agents, of 67 Strand, in the City of Westminster, Civil Engineer, do hereby
declare the nature of said invention for "IMPROVEMENT IN PENCIL HOLDERS,"
a communication to me from abroad by Karl Strössenreuther, Manufacturer, of
Nürnberg, in the kingdom of Bavaria, 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 holders for movable lead-pencils.
The improved holder chiefly comprises two concentric tubes, of which the inner
tube contains the lead or pencil, while the outer tube is adapted to clip the same
when pushed forward for use. The front end of the outer tube is for this purpose
made conical and is preferably strengthened on the inside with a short mouth
piece, after which it is split axially at one or more places. The rear end of the
inner tube projects through the bottom of the outer tube and has a collar against
which presses the rear end of a helical spring enclosed in the outer tube and
abutting with its front end against an inside flange of the outer tube. The bottom
of the outer tube is bent over the collar of the inner tube so as to limit the
withdrawal of the same caused by the spring.
In order to enable the invention to be better understood I will proceed to
describe the same by reference to the accompanying drawing in which fig 1, is an
elevation and fig 2, a longitudinal section of a pencil holder constructed according
to this invention. Similar letters in both figures represent similar parts.
a, and d, represent the two concentric tubes; f, is the lead or pencil within the
inner tube d; b, b, is the conical front end of the outer tube a and c, c, the inside
mouth piece for strengthening the same and cone-shaped as shewn; k, k, represent
splits in the front end or point b, of the outer tube a; e, is the collar on the inner
tube d, and g, the inside flange of the outer tube a; i, is the bottom of the outer
tube a, bent over the collar e, of the inner tube; h, is the helical spring on the rear
end of the inner tube d, between the collar e, and flange g.
When not in use the point of the lead or pencil f, is withdrawn into the outer
tube a, and behind the mouthpiece b, of the same. For using the pencil pressure
is applied to the projecting rear end of the inner tube d, so as to bring the front
end of the same against the internal conical mouthpiece c, o, so as to expand or
open the same and also the split point b, so as to allow the point of the lead to
project therefrom. The inner tube d, being now relieved from pressure will be
carried back to its normal position by the spring h, and the lead f, will be clamped
by the mouthpiece c, c. To withdraw the lead within the holder the tube d, must
be again pressed forward so as to open the mouthpiece c, c, and the lead being thus
released will fall back into the holder.
A pencil holder of simple construction is thus obtained which can be easily
manipulated to allow of the point of the lead being projected for use and easily
withdrawn when not required for use.

page_text: Although I have described the point of the outer case a, provided with a conical
strengthening mouthpiece c, it will be obvious that this mouthpiece c, can be
dispensed with by making the point b, internally of the same shape as the
mouthpiece c, c.
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
1. A pencil holder having a point provided with one or more slits and opened
by pressure being exerted upon an inner tube d, as herein before described and
represented in the accompanying drawing.
2. The manufacture and use of the improved pencil holder hereinbefore
described and represented in the accompanying drawing.
Dated the 23rd day of March 1885.
G. F. REDFERN,
4, South Street, Finsbury, London,
Agent for the Applicant.