Year: 1896

page_text: Date of Application, 29th Dec., 1896-Accepted, 20th Mar. 1997
I, FREDERICK WILLIAM MUSSON, of No. 1410 Marquette Building, Chicago,
County of Cook, State of Illinois, United States of America, Gentleman, 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 movable-lead lead-pencils and has for its object to
provide convenient and simple pencils in which the lead is controlled directly by the
band of the user.
It is illustrated in the accompanying drawing.
Figure 1 is a side elevation of a pencil with fixed tip;
Figure 2, a longitudinal' section through a pencil with removable tip.;
Figure 3, a side elevation of a part of a pencil with a modified removable tip;
Figure 4, a section of a preferably wood case fixed tip pencil;
Figure 5, a detail of the modified tip of Figure 3;
Figure 6, a detail of the pencil end provided with a knife device;
Figure 7, a view of a divided cutting tip; and
Figures 8 and 9, details of a magazine pencil.
A is the exterior case of the pencil having the end or head or eraser B made in
any desired manner, and the longitudinal aperture C, and the internally screw-
threaded tip portion. D is a fixed tip, D₁ a screw-threaded tip which is itself
screw-threaded at D' into the end of the case, D³ a screw-threaded tip having the
wings D D which enter slots in the end of the case whereby the two are held
together, D a screw-threaded tip which has a cap portion Ds to enclose the outer
end of the case whereby the two are secured together, and D8 D8 are the two parts
of a separable tip locked together by the lug J and recess K.
In Figure 4 the case, which is preferably made of wood or other material which
may be easily cut, is provided with the relatively long internally screw-threaded.
tip D', this tip portion being preferably continuous with the body of the case.
In Figure 6 I have illustrated a rubber tip F contained within the metal
thimble F1 which is received into the metal thimble F on the end of the case A.
A knife or blade F³ is associated with the block F which is:secured to the metal
thimble F. This blade projects into the longitudinal aperture.
L is an inner cushion, cylindrical in form, which can be employed in any of the
pencils. M is the lead with screw-threads at N, and are leads in the
magazine aperture.
The lead is preferably screw-threaded at the start throughout, and it may be
inserted at the tip portion of the case, being screwed into position through the tip
until just enough remains to permit the lead to be grasped between the thumb and
finger. If the tip is removable the lead can be inserted in the tip while so
removed, and then the tip be attached to the case. The lead might also be
introduced from the outer or head ond of the pencil.
In the case of the device of Figure 4, which is preferably of wood, if the lead
is broken so that it cannot be grasped between the thumb and finger, the screw-
threaded portion is so long that the case can be trimmed down sufficiently to uncover
the lead; and this may be done several times before the pencil case is destroyed.

page_text: The knife can be used for this purpose or for sharpening the lead proper
whenever that may be thought necessary.
In the case of the device of Figure 7, if the lead is so broken, the tip can
be unscrewed from the case, the parts separated and the fragments removed.
In the ordinary use of any of these forms of pencils it is only necessary to
take hold of the exposed portion of the lead with the thumb and finger and
turn it in the screw-thread, whereupon it is reciprocated or moved forward
to enable one to write with the pencil. A series of leads can be carried in the
pocketed case shown.
The lead in some instances may be threaded at the beginning, and in some the
tbread may be cut by the tip.
By the term "lead" I mean to include all marking devices to which my
invention may be applicable.
Having now particularly described and ascertained the nature of my inven
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. As a new article of manufacture a lead pencil with a removable lead,
consisting of a case having a longitudinal aperture, a removable and outwardly
Projecting but normally fixed tip on the case baving an 'internally screw-threaded
aperture, and a free lead screw-threaded throughout its length and received in
the tip. so that the lead can be reciprocated by beiug rotated by hand and lend
and tip can be removed from the case together.
2. As a new article of manufacture a lead pencil consisting of a case
composed of a substance capable of being cut with a knife and having an
enlarged aperture, an internally threaded relatively long tip portion, a free lead
threaded and adapted to engage the internal thread of the case so that the lead
can be reciprocated by being rotated by the hand and when broken off at the point
the case can be cut down to uncover the lead.
3. In a lead pencil the combination of an outer portion with a longitudinal
aperture, a series of lead holding apertures in the outer portion, a tip internally
screw-threaded and associated with the outer portion, and a free lead adapted to be
rotated in the tip and thus to be reciprocated by means of the thread thereof, said
tip being removably associated with the outer portion.
4. A lead pencil comprising an outer portion with a longitudinal aperture, a tip
removably attached to the outer portion consisting of two interlocking parts, and a
free lead adapted to be passed through the tip.
5. A lead pencil formed and having the parts substantially as shown and
described.
Dated this 28th day of December 1806
H. D FITZPATRICK.
70 Wellington Street, Glasgow, Agent.