IMPROVEMENTS IN LEAD AND CRAYON HOLDERS
Year: 1883

page_text: "
LETTERS PATENT to John Henry Johnson, of 47, Lincolns Inn Fields, in
the County of Middlesex, Gentleman for an Invention of "IMPROVEMENTS
IN LEAD AND CRAYON HOLDERS communicated to him from Joseph
Reckendorfer a person resident at the City County and State of New York
in the United States of America
PROVISIONAL SPECIFICATION left by the said John Henry Johnson at the
Office of the Commissioners of Patents on the 3rd April 1883.
JOHN HENRY JOHNSON of 47 Lincoln's Inn Fields in the County of Middlesex
Gentleman "IMPROVEMENTS IN LEAD AND CRAYON HOLDERS a communication
to me from Joseph Reckendorfer a person resident at the City County and State
of New York in the United States of America
This Invention relates to improvements in lead and Crayon holders and a holder
constructed according thereto consists of three parts via:-1st A stem that
constitutes the handle and has an external screw thread cut in it on its front
end, and it is centrally or axially bored from the front with a hole of a diameter
to receive the lead. 2ndly Metallic spring jaws which are set so as to normally
stand apart and are inserted into the hole in the stem being for this purpose
preferably formed upon the end of a metal tube which is driven into and serves as
a lining for the said hole and 3rdly A sheet metal conical clamping tip or sleeve
terminating at the rear in a cylindrical part in which is formed a screw thread to
engage with the screw thread on the end of the stem.
The spring metal jaws are easily and cheaply made and are inserted in the hole
in the stem with entire facility; they are very effective never losing their
resiliency and always acting to grasp the lead firmly when they are compressed.
The stem provided with the hole and screw thread is made at very small cost and
with great rapidity and ease and these parts can be fitted together without skilled
labour. The device as a whole can be made at a very low cost and is very
efficient.
If deemed preferable the screw threaded extremity of the stem can be sheathed
in metal.
The stem can be made of wood papier-maché or other like or suitable material
but wood is preferred.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said John Henry Johnson in the Great Seal Patent Office on the
26th September 1883.
"
JOHN HENRY JOHNSON of 47 Lincolns Inn Fields in, the County of Middlesex
Gentleman "IMPROVEMENTS IN LEAD AND CRAYON HOLDERS a communication
to me from Joseph Reckendorfer a person resident at the City County and State
of New York in the United States of America
This Invention is an improvement on that kind of lead and Crayon holder
wherein a sleeve or cap piece is screwed or fitted to move longitudinally upon the
holder so as to compress spring jaws for holding the lead or crayon or so as to
allow the said jaws to expand for releasing the lead or crayon-Holders as hitherto
constructed upon this principle possess decided advantages on the score of
simplicity and cheapness but it has been found that the lead is liable to slip in
the jaws and the jaws in time to lose their springness and to become "set" and
by reason of these serious disadvantages which were disclosed in the practical
manufacture and use of the said holders they ceased to have much value in the
market.
Various expedients have hitherto been tried in order to overcome these
difficulties but they have in some instances proved practically ineffective and in
other cases even where the efficiency was in a measure increased this was counter-
balanced and perhaps more than counterbalanced by the increased cost of
manufacture.
This Invention has for its object to combine the advantages which may have
attached to the kinds of holders as hitherto proposed without the disadvantages
which attach to any of them separately considered.
I will proceed to describe the said Invention with reference to the accompanying
Drawing wherein figure 1 is a longitudinal central section of a holder constructed
according to this Invention Figure 2 is a side elevation of the metallic sleeve or
tip Figure 3 is an elevation of the jaws and tube detached Figure 4 is an
elevation of the stem proper and Figure 5 is a longitudinal section of the front part
of the said stem representing a modification thereof as hereinafter described.
The said holder constructed according to this Invention consists of three parts
namely a stem A constitutes the handle an external screw thread a being cut in it
on its front end and it is centrally or axially bored from the front with a hole b of
a diameter to receive the lead tube-Metallic spring jaws B are provided which are
set so as to normally stand apart and are inserted into the hole b being for this
purpose preferably formed upon the end of a metal tube B¹ which is driven into
and serves as a lining for the hole 6-There is also provided a sheet metal conical
clamping tip or sleeve C which terminates at the rear in a cylindrical part in which
is formed (preferably by springing) a screw thread c to engage with the screw
thread on the end of the stem A.
The spring metal jaws B are easily and cheaply made and the part B' is inserted
into the hole b with great facility; they are very effective never losing their
resiliency and always acting to grasp the lead firmly when they are compressed.
The stem A provided with the hole 6 and screw thread a is made at very small
cost and with great rapidity and ease and these parts can be fitted together
without skilled labour-The device as a whole can be made at a very low cost and
is very efficient.
If it be deemed preferable the screw threaded extremity of the wooden stem A
can be sheathed in metal as shewn in Figure 5 where the screw threaded end of

page_text: the stem A carries an external metal ferrule d in which (after it is fitted on the
stem) is spun a screw thread which enters and coincides with that already cut in
the stem
The stem can be made of wood papier-maché or other like or suitable material
but wood is preferred.
Having now described and particularly ascertained the nature of the said
Invention and the manner in which the same is or may be used or carried into
effect I would observe in conclusion that what I consider to be novel and original
and therefore claim as the Invention secured to me by the herein before in part
recited Letters Patent is:-
A lead and Crayon holder consisting of the combination of the stem A
terminating at the front in a screw thread a and provided with the axial hole b
combined with the metallic spring jaws B inserted and held in the said hole b and
the screw tip C as hereinbefore described and illustrated in the accompanying
drawing
In witness whereof I the said John Henry Johnson have to this my
Specification set my hand and seal this first day of September One thousand
eight hundred and eighty three.
J. HENRY JOHNSON (L.S.)