Improvements connected with Pen, Pencil, and the like Holders.
Year: 1893

page_text: Date of Application. 5th June, 1893
Complete Specification Left, 27th Feb., 1894-Accepted, 31st Mar., 1894
PROVISIONAL SPECIFICATION.
Improvements connected with Pen, Pencil, and the like Holders.
A communication by CHRISTIAN EHRHARDT, of No. 11, Leonhardsgasse,
Nuremberg, in the Empire of Germany, Machine Manufacturer.
1, WILLIAM Phillips THOMPSON, F.C.S., M.I.M.E., of The Agency for
Foreign Patent Solicitors, 6 Lord Street, Liverpool, and 6 Bank Street,
Manchester, both in the County of Lancaster, and 323 High Holborn in the
County of Middlesex, Civil Engineer, do hereby declare the nature of this
invention to be as follows:-
This invention relates to that kind of holders for pencils, pens, indiarubber,
and the like articles, in which such like articles are held fast in the slotted end of
the holder by means of an adjustable ring sliding on the so-called clamp cone.
The holders, which are in themselves very useful instruments, have the drawback
that the loose adjustable clamp ring, when not tightening the parts, easily drops off
and gets lost.
This invention has for its object to secure the clamp ring in a suitable manner
so as to prevent it sliding or slipping down and becoming lost. This is done by
means of a device which, owing to its simplicity, does not perceptibly increase
the cost of the holder, and, further, in no way spoils its handiness.
The device is as follows:-
The clamp ring, placed over the clamping cone, has radial flaps or tongues
curving inwards, of a nose-like shape, that is to say, with one straight side and
one inclined side.
This projection is made by stamping an angular flap or tongue out of the ring of
the required shape, and bending it inwards round the vertical side.
This projection engages in one of the longitudinal slots of the clamp cone of the
holder, so that the ring moves in a straight line along this alot.
The forward
movement of this ring is limited by a small pin which is loosely inserted in a cross
groove made in the fore part of the clamp cone. When the ring is pushed forward,
that is to say, when the clamp block is opened, the straight side of the projection
comes against the pin, and thus any slipping down of the ring is prevented.
The clamping with its fixing projection is placed over the stop pin in the
following manner :-
The ring is forced with a strong pressure from above over the clamp cone, the
projection then, in consequence of the elasticity of the parts in question, slips with
its inclined side over the stop pin, and then springs with its straight side behind
the same.
The construction and attachment of the safety device are thus extremely simple,
and this circumstance is of the greater importance as, in wholesale articles of this
description, the smallest differences in the cost of production have considerable
influence on the sale of the article. It should further be mentioned that this
safety device has no projecting parts increasing the difficulty of handling the
holder, so that the bolder provided with it is in no wise inferior, as regards
handiness, to the ordinary wooden lead pencils.
Dated this 3rd day of June 1893.
WM. P. THOMPSON & Co.,
Agents for the Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements connected with Pen, Pencil, and the like Holders.
A communication by CHRISTIAN EHRHARDT, of No. 11, Leonhardsgasse,
Nuremberg, in the Empire of Germany, Machine Manufacturer.
I, WILLIAM PHILLIPS THOMPSON, F.C.S., M.I.M.E., of The Agency for
Foreign Patent Solicitors, 6 Lord Street, Liverpool and 6 Bank Street, Manchester
both in the County of Lancaster and 323 High Holborn in the County of
Middlesex, Civil Engineer, 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 :-
This invention relates to that kind of holders for pencils, pens, indiarubber, and
the like articles, in which such like articles are held fast in the slotted end of the
The
holder by means of an adjustable ring sliding on the so-called clamp coue.
holders, which are in themselves very useful instruments, have the drawback that
the loose adjustable clamp ring, when not tightening the parts, easily drops off and
gets lost.
This invention has for its object to secure the clamp ring in a suitable manner
so as to prevent it sliding or slipping down and becoming lost. This is done by
means of a device which, owing to its simplicity, does not perceptibly increase the
cost of the holder, and, further, in no way spoils its handiness.
The device is shown on the accompanying drawing,
Figure 1 being an elevation, and
Figure 2 a plan,
Figure 3 an enlarged sectional view and Fig. 4 a sectional plan of the same,
Figure 5 a sectional view at right angles to Figure 3 and Figure 6 sectional
plan of the same.
The clamp ring placed over the clamping cone a has a radial flap or tongue c
curving inwards, of a nose-like shape, that is to say, with one straight side c¹ and
one inclined side c².
This projection c is made by stamping an angular flap or tongue out of the
ring of the required shape and bending it inwards round the vertical side c³.
The
This projection engages in one of the longitudinal slots d of the clamp cone of
the holder, so that the ring b moves in a straight line along this slot d.
forward movement of this ring is limited by a small pine which is loosely inserted
in a cross groove f made in the fore part of the clamp cone. When the ring is
pushed forward, that is to say, when the clamp block is opened, the straight side
of the projection comes against the pin e, and thus any slipping down of the ring b
is prevented.
The clamp ring with its fixing projection c is placed over the stop pin in the
following manner-
The ring is forced with a strong pressure from above over the clamp cone a, the
projection c then, in consequence of the elasticity of the parts in question, slips with
its inclined side over the stop pin e and then springs with its straight side c¹
behind the same.
The construction and attachment of the safety device are thus extremely simple,
and this circumstance is of the greater importance as, in wholesale articles of this
description, the smallest differences in the cost of production have considerable
influence on the sale of the article. It should further be mentioned that this
safety device has no projecting parts increasing the difficulty of handling the
holder, so that the holder provided with it is in no wise inferior, as regards
handiness, to the ordinary wooden lead pencils.

page_text: Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, as communicated to me
by my foreign correspondent, I declare that what I claim is-
A safety or fastening device for the clamp rings of holders for pencils, pens,
indiarubber and the like, consisting of a nose or projection c projecting radially
inwards from the surface of the clamp ring, which nose or projection rests in one
of the longitudinal slots of the clamp cone, and when pushed forward comes in
contact with a stop pin e inserted in a cross groove of substantially as herein before
described and shown on the accompanying drawing.
Dated this 26th day of February 1894.
WM. P. THOMPSON & Co.,
Agents.