IMPROVEMENTS IN HOLDERS FOR PENCILS, PENS, KNIFE-BLADES AND SIMILAR ARTICLES
Year: 1885

page_text: COMPLETE DFDCITIA
I, HERBERT JOHN HADDAN of 67, Strand, in the City of Westminster, Civil
Engineer, do hereby declare the nature of said invention for IMPROVEMENTS IN
HOLDERS FOR PENCILS, PENS, KNIFE-BLADES AND SIMILAR ARTICLES, a communi-
cation to me from abroad by Siegfried Dünkelsbühler, of the firm of Nürnberger
Bleistift-Fabrik, Dünkelsbühler & Co, Manufacturers, of Nürnberg, in the.German
Empire, and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:-
The improvement relates to holders for pencils, pens, knife blades etc., and has
for its object the construction of a holder, which allows the pen or pencil to move
in and out under the influence of gravity and to be fixed in the desired position by
means of a special contrivance,
In the annexed drawing Figs. 1 and 2 show a holder, having a blacklead-tube b,
movable in the casing a and provided with the usual screw-point b¹, which tube
can, by its weight, get out of the casing a and back into the same and can be
secured in each of these two positions by means of a special holding-device.
For letting out the blacklead tube, the holder is kept downward; for getting it
back, the holder is kept upward with its lower end.
The blacklead tube is provided with guiding muffs 62 6³, and its down motion is
limited by a pin b, guided in the slit a¹ of the casing a.
Fig. 1. shows the holder ready for use, with the blacklead tube projecting over
the casing a.
In this position the receding of the blacklead tube is prevented by
the holding device, arranged close above its upper end. The holding device consists
of the clip c, into which is introduced the tubular pusher d, provided with a knob d¹.
The clip c is fastened with its upper end to the casing a and is furnished, at its
opposite or free end, with several slits c¹. The elastic jaw-pieces, formed by the
slits, come close together at their lower ends, when in their normal position, so as
to form an abutment for the closed upper end of the blacklead tube b, while the
holder is in use (Fig. 1.) The pusher d projecting into the clip is supported by a
spiral spring e, which has its support on the clip c and abuts at the top against a
roof-shaped flange or collar of the pusher d, which is held in position by an inside
bend a situated above the said collar.
For leading back the blacklead tube b into the casing a, the clip c, which has
inside at the open end a conical shape, is opened by pressing down the knob d¹ of
the pusher d, and the holder, with the blacklead tube b is held upside down, so that
the blacklead tube slides with its upper end into the clip, and thus into the hollow

page_text: pusher d, where it is held fast, after the pressure on the knob d has ceased, by the
elastic clip, which tends to close itself (Fig. 2). Subsequently the blacklead tube
can be released by opening the clip o, and secured for fresh use (Fig. 1).
In Figs 1. and 2. the clip c is shown in cross section, in Fig. 3 in side view.
The spiral spring e, enclosed between the clip c and the knob ď, and serving to
lift the pusher after the clip has been opened, may be dispensed with, as, in con-
sequence of the inner conical shape of the clip, the pusher d can also be lifted
automatically.
The clip cc, provided with the pusher d d¹, and serving to secure the blacklead
tube, movable in the casing a, by the joining together of its elastic parts, may be
replaced by a spreading contrivance, which serves the same purpose.
Figs. 4, 5 and 6 show a holder with such a modification. In Fig. 4 the blacklead
tube b is drawn out, and the pencil is fixed ready for use by the spreading
contrivance. The latter consists of the tube g, provided with several slits g¹, and
is fastened in the casing a with its box-shaped extension g², and of the pin h, led
through the tube, and bearing at its lower end the pear shaped wedge i and at its
upper end the pressing knob k. The latter is constantly pressed upward by a spiral
spring 1, situated round the pin h in the tube-box g² in such a manner, that the
wedge gets into the split-tube g and expands the same. For the purpose of
securing the blacklead tube 6 by means of this spreading contrivance, the tube b is
shortened, and provided at the upper end with a case m, which, after the blacklead
tube has got out of the casing a as far as the guide slit a¹ will allow, (Fig. 4.)
abuts against the edge of the split and spread tube g. Thereby the blacklead-
tube bis prevented from receding and set fast for use. For withdrawing the
blacklead tube and securing it in the case a, the lower end of the pencil is kept
upward, and subsequently the wedge i is removed out of the split tube by pressing
the knob. Thereby the split-parts or jaws of the tube approach each other so as
to permit of the case m to slide down with the blacklead-tube b and to enclose the
split tube. (Fig. 5.) The knob k being released, the wedge again gets into the
tube g, which spreads in the case m and thereby holds fast the tube g and. black-
lead tube b (Fig. 6). Subsequently the blacklead tube b can be released and held
fast for use. (Fig. 1). The tube 9 provided with the slits g¹ and box g² is repre-
sented in cross section by Fig. 4. Figs. 5. and 6. show it in side view, and Fig. 7
is a separate view of the same.
The part b, sliding in the casing a, may be provided with a pen, knife-blade or
other instrument, instead of a blacklead.
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