IMPROVEMENTS IN PENCIL OR CRAYON HOLDERS
Year: 1882

page_text: LETTERS PATENT to Franz Hardtmuth of Budweis in the Kingdom of
Bohemia for an Invention of IMPROVEMENTS IN PENCIL OR CRAYON HOLDERS
PROVISIONAL SPECIFICATION left by the said Franz Hardtmuth at the
Office of the Commissioners of Patents on the 20th June 1882.
FRANZ HARDTMUTII, of Budweis, in the Kingdom of Bohemia
IN PENCIL, OR CRAYON HOLDERS'
"
"IMPROVEMENTS
This Invention has for its object improvements in pencil, or crayon holders.
For this purpose I form the holder of a tubular receptacle of a diameter such
that the lead, or crayon may drop into it loosely; one end of the tube is closed,
the other has two, or more slits formed longitudinally through it, so that at this end
of the tube there are two, or more tongues which can be pressed inwards and caused
to nip and hold the lead.
At
The pressing inwards of the tongues is effected by a conical ended cap placed
over the slit end of the tube.
At the extremity of the cap is a hole of just
sufficient size for the lead to pass through. The base of the cap is attached to a
tube which surrounds the tubular lead holder and can slide end wise along it.
the rear end of this tube is a projecting collar. A spiral spring bears against this
collar in a direction to draw the cap onto the split end of the tubular holder, the
inner coned end of the cap then acts against the ends of the tongues and pressing
them inwards causes them to nip and hold the lead.
The spiral spring surrounds the rear end of the outer tube above mentioned and
abuts against a ring, or collar which looseley embraces the outer tube and which is
fixed by a pin to the inner tubular holder. A longitudinal slot is formed in the
outer tube for this pin to pass through The slot is of sufficient length to allow of
the requisite endway movement of the outer tube.
To move the inner coned end of the cap away from the end of the tubular
holder, sufficiently to allow the tongues to spring outwards and release their hold
of the lead, the ring, or collar above mentioned, has secured to it the ends of a
number of metallic bars, which are ranged around the outer tube and lie longitu-
dinally along it. The forward ends of these bars enter the rear end of the cap and
Price Gd1

page_text: bear against the exterior of a cone which is fixed within it. When these bars are
pressed inwards their ends bearing against the cone force the cap away from the
end of a tubular holder. The lead when thus released can be allowed to drop
either inwards, or outwards from the holder and can be set so that its end projects
out beyond the end of the cap to any extent desired The tongues may then by
relaxing the pressure upon the bars be again allowed to grip and hold the lead.
The said bars are guided by a plate provided with as many holes as there are bars
employed. This plate is fixed to the inside of the conical ended cap
The rear end of the tubular holder and the parts surrounding it may be enclosed
in a tubular case, or cover leaving the bars and end cap unenclosed.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Franz Hardtmuth in the Great Seal Patent Office on the
16th December 1882.
FRANZ HARDTMUTH, of Budweis in the Kingdom of Bohemia. IMPROVEMENTS
IN PENCIL, OR CRAYON HOLDERS
The object of this Invention is an improved pencil, or crayon holder so con-
structed that the lead is allowed to drop either inwards, or outwards, when the
holder is pressed between the fingers and held in its position again when pressure
is relaxed.
This improved pencil or crayon holder is represented in the annexed Drawing
as follows.
Figure 1 is a longitudinal section of the crayon holder in its normal state.
Figure 2 is a sectional elevation of the crayon holder in a compressed state.
Figure 3 is a cross section taken on the line xx
Figure 4 is a backside view of the conical ended cap of the holder showing the
pinked guide plate and the section of the inner tubes of the pencil holder.
The holder is formed of a tubular case or handle A of any appropriate material,
such as wood, ivory or rubber having screw threads on its top end for the
purpose of fastening the ferrule a and a female screw in its bottom, this female
screw serving to screw into the case, or handle the tubular lead receptacle B, by
means of its conical screw b. The receptacle B consists as usual of a thin metallic
tube having three, or more longitudinal slits at its upper end for the purpose of
forming three, or more elastic tongues, or jaws, whose sharpened top edges are
curved in, so that when pressed inward they prevent the lead C from dropping
out spontaneously. A little distance from the lower end of the receptacle Ba
locking plate b traverses this latter and its ends pass through two longitudinal
slots formed in the tube D which surrounds the receptacle B. On the rear end
of the outer surrounding tube D is soldered, a projecting collar and a spiral
spring 6 bearing against this collar and aforesaid locking plate 62 tends always to

page_text: draw down tube D along tube B. By those means tubes B and D are so connected
together that one may slide end wise along the other, namely as far as the play of
spring b allows it. The upper end of tube D is formed by a cylindrical head d'
which is provided with screw threads that the cap E can be fastened upon it. The
rear face of the head ', that is to say its face turned away from the pencils
point, is made conically, or spherically tapering,
Immediately above the slots that permit passage to the ends of the pin or locking
plate b a ring F loosely embraces the outer tube D resting upon the locking plate b³
and this ring, or collar has secured to it the ends of a number (4. 5, or more) of
metallic bars, or spring levers f (Figures 1. 2 and 3) which are ranged round the
outer tubo D and lie longitudinally along it. The pointed upper ends of said bars
extend to the upmost and largest part of the tapering face d passing through a
guide plate c which is fixed to the inside of the conical ended cap E and provided
with as many holes as there are bars employed. These guide holes however inay
be formed by simply bending inward triangular lobes formed in the inner border of
the cap E. To prevent the elastic bars being deteriorated by crooking in consequence
of accidental turning of collar, or ring F round the tube D said ring is pereferably made
with two small notches that embrace the projecting ends of the locking plate b³.
When the pencil, or crayon holder is in its normal position as shown by Figure 1,
the pressure of the spiral spring b' draws always back the outer tube D with its
head d¹ and conical ended cap E whereby the slitted part of the lead receptacle B
is sufficiently made entering this cap to cause the sharp edges of the tongues, or
jaws to nip and hold the lead.
When however, the point of the pencil being held downwards the elastic
bars, or spring levers fare pressed together between the fingers their points will
slide along the tapering face d' of the head d' and force the cap E away from the
end of the tubular receptacle B. The inner cavity of cap E being conical, the
tongues of the lead receptacle are then allowed to spring outwards and their sharp
edges nipping no longer the lead, this latter can fall out to any desired extent. By
releasing the pressure upon the elastic bars, or spring levers f the lead is held again
in its new position
I claim.
First in a pencil holder a tube provided with gripping jaws or tongues to contain
and grip the pencil, a handle, or outer case and a series of elastic bars, or spring
levers forming practically with said pencil holder tube, or tubular receptacle one
rigidly connected piece and appliances to cause the gripping jaws to release the
pencil when pressure is applied to the clastic bars, or spring levers substantially as
and for the purpose described
Second in a pencil holder a tubular receptacle with gripping jaws, or tongues to
contain and grip the pencil, a handle, or outer case and a series of elastic bars, or
spring levers, forming practically with said pencil holder tube, or tubular receptacleo
one rigidly connected piece in combination with appliances to cause the gripping
jaws to release the pencil when pressure is applied to the elastic bars, or spring
levers and again automatically grip the pencil when the pressure upon the elastic
bars is removed substantially as and for the purposes specified.
Third in a pencil holder, the combination with the pencil holding tube, or
tubular receptacle B provided with gripping jaws b', the elastic bars, or spring
levers and handle, or outer case A, these three parts forming practically one
rigidly connected piece of an enclosing tube capable of longitudinal motion upon
tube B and carrying a tapering cap adapted to engage the gripping jaws of tube B
and appliances whereby said tapering cap is normally held in engagement with the
gripping jaws and released therefrom by the compression of the elastic bars, as
set forth.
Fourth in a pencil holder the combination of the tube B having a projecting
locking plate b, the elastic bars, or spring levers fand their ring, or collar F which
rests on the projecting ends of locking plate b², or inay be made with two notches
embracing these ends with the slitted tube D whereby said tube B and elastic

page_text: bars are practically made to form one rigidly connected piece without interfering
with the longitudinal motion of the tube D upon tube B substantially as and for
the purposes specified.
Fifth The combination in a pencil holder of a pencil holding tube, or tubular
lead receptacle provided with gripping jaws, an enclosing tube provided with means
to lock said jaws upon the pencil, said enclosing tube being capable of longitudinal
motion upon the lead receptacle a series of spring levers forming practically one
piece with the pencil holding tube, or lead receptacle and adapted for operation to
unlock, or release the gripping jaws through the medium of the enclosing tube.
Sixth The combination of the tube B the spring levers, or elastic bars f
practically forming one piece therewith, the slotted tubo D carrying tho cap E
and the spring 6' all constructed and arranged for cooperation as shown and
described.
Seventh The combination with the tube B and its spring levers, or elastic bars f
of the spring actuated tube D provided with a head di and a cap E all constructed
for cooperation substantially as and for the purposes specified
Eighth The combination of the tube B and its spring levers, or elastic bars f
and the handle A provided with the ferrule a of the spring actuated tube D
provided with the head and the cap E provided with the guide plate e all
constructed and arranged for cooperation substantially as shown and described
and for the purposes specified.
In Witness whereof, I the said Franz Hardtmuth have hereunto set my
hand and seal this eleventh day of December in the year of our Lord one
thousand eight hundred and eighty two