Improvements in Pencil-holders.
Year: 1891

page_text: Date of Application, 21st Dec., 1891-Accepted, 2nd Apr.; 1892
COMPLETE SPECIFICATION.
Improvements in Pencil-holders.
1, ROBERT FELGER of No. 2 Herrnstrasse, Wöhrd, Nuremberg, in the German
Empire, Manufacturer 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:
:-
My invention relates to the kind of pencil-holders in which the pencil slides
within a handle and by means of suitable mechanism is caused to project out of the
same, in which position it may be locked; now my invention.consists, firstly, in an
improved device for moving the pencil within the handle, said device 'being
composed of a screw and of several tubes or sleeves, as more closely described
hereafter; my invention also consists secondly, in a suitable mechanism for passing
a tube over the pencil when the point of the same is out of the handle, whereby
said point is protected from breaking off, and furthermore, in the arrangement of a
spring-arm, a tube with openings of a peculiar shape and a specially constructed
spring, whereby the tube passing over the point of the pencil is locked in its
forward position and released from the same.
The better to make my meaning clear, I will proceed to describe a pencil-holder
inade according to my improvements, as shown in the accompanying drawing, in
which:
Fig. 1 is an elevation of the pencil holder, the outer parts being shown in
section.
Fig. 2 is a similar view; the tube d being pushed somewhat forward, only the
casing and part of the tube a rigidly secured to the same being shown in section."
Fig. 3 is again a similar view, the tube d occupying the forward position in
which it is locked, and the casing alone appearing in section.
Fig. 4 is a sectional plan, on the line of Fig. 3:
Similar letters refer to similar parts throughout the several views.
.:7
To the handle or casing j there is rigidly attached the tube'a, forined of any
suitable material, but preferably of metal; an interior thread like that of an
Archimedean screw is provided on said tube, and may be formed in any manner, as
for instance by soldering or otherwise affixing to said tube a spiral of brass, iron or
any other suitable metal or material. Inside the tube a I place another tube'c,
which may freely revolve within the former, but is prevented from longitudinal
displacement by burrs provided at and 2. The lower part of tube c, the
diameter whereof is larger, contains the device for locking the tube d. The latter
is firmly connected to the knob k, protruding outside the handle at the rear end of
the same, and is guided in the tube c. The tube d incloses the sliding tube f into
which the pencil e is introduced as usual. A lug g is secured to the tube f, and
passes through corresponding longitudinal slots c and d provided in the tubes c
and 'd; a groove cut in the exterior side of the lug g fits over the interior thread b
of the tube a.
When turning the knob and thereby causing the tubes d, f and c to revolve,
the lug g being guided by the thread b, will effect a longitudinal displacement of
tube, so that the latter may be moved toward the front or rear end of the handle,
according to the direction in which the rotation takes place, whereas the other
parts are not displaced longitudinally.
This manner of feeding the pencil to the front end is intended to be employed,
as a rule, only when the protruding point of the same has become too short, and
it is not intended to protect the point by drawing the same into the handle, 'as
in all the constructions known heretofore, though of course the same manner

page_text: may be employed, especially when laying the pencil-holder aside for some time-
but in most cases it will be found convenient to cover the pencil a by pushing
forward the tube d, as shown in Fig. 3, whereby the former is sufficiently
protected from injury, the tube d being locked in this position by the means
which I am going to describe.
The part of the tube c, outside the tube a, is provided with an opening of the
shape shown in the figures, having an inclined shoulder at its rear end, a straight
middle portion and a triangular notch at the front end. On the edge of the
opening rests a spring arm i, secured with one end to tube d; said spring arm is
coustantly pressed on the edge of the mentioned opening. The different positions
occupied by spring arm in the course of the movement of knob and tube d
are marked I, II, III and IV on the drawing. I also provide, within the opening
in part e, a spring / fixed to the latter by one side and also pressing against the
edge of said opening.
When the pencil is being employed for writing or drawing, the different parts
have the positions illustrated by Fig. 1, the spring armi bearing upon the burr c²
of the tube c³, as shown at I, a spiral spring m, inserted round the tube d between
the knob k and the burr c², drives the latter toward the forward end of the pencil
holder.
In order to cover the point el of the pencil e, when this latter is not in use, the
tube d is pushed forward by pressing the knob k. The pencil remains at its place
during this movement, since the slots c and d allow only for a longitudinal dis-
placement of lug g, to which the pencil is firmly connected, and since any such
displacement is prevented by the thread . The spring arm, while moving
forward, along the inclined edge h', pushes aside the end portion. of spring 1 and
gliding along the straight edge ², as shown at 11, proceeds to the notch and lays
itself into the same in consequence of the spring action which causes said arm i to
bear upon the edge እ አ አ. This position of the spring arm is indicated by III
on the drawing. The tube d is thus securely locked against any backward
movement.
In order to release the tube d and to draw the same back into the handle, thus
uncovering the point el of the pencil, a slight pressure is again applied upon the
knob k, causing the tube d to project a little more out of the handle, and the spring
arm i to glide along the inclined edge of notch h³, until it gets past the front
end 12 of the spring 1. As the latter now expands in consequence of its clasticity,
the end bears upon the inclined edge of notch ³, and, the pressure on knob k
being removed, the spring arm i is free to be retracted with tube d by the spring m,
as shown at IV in Fig. 3. It will be understood that in this backward movement
the spring arm i glides along the inner surface of the spring, and does not collide
with the edge of notch 3. After having passed the rear end of spring 7, the
armi is again pressed on the edge h', and this gets into the first position indicated
by I.
I do not confine myself to the exact form and arrangement of parts herein
described and shown in the drawing, but may replace any of said parts by others
answering the same purpose, without departing from the nature of my invention.
'
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is
:-
In a pencil-holder:
1. The herein shown and described device for feeding forward and drawing back
the pencil e by turning the knob k, said device consisting of a tube a, fixed to the
handle, and having an interior thread b, over which fits a groove provided in a
lug g, extending from the tube f, and passing through slots, c¹ and d', in tubes c
and d, for the purpose as described.
2. The device for locking and releasing the tube d consisting of the spring arm i,

page_text: the tube c, having a peculiarly shaped lateral opening, and the springs and m,
substantially as hereinbefore described and illustrated by the drawing, and for the
purpose set forth.
1001
ROBERT FELGER,
By W. H. Munns,
Agent for the Applicant.