Pencil-Lighting Attachment. Page: 2 of 3
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UNIEDSTATES PATENT FIE
JERRELL DENNETT, OF GRAPEVINE, TEXAS.
PENCIL-LIGHTING ATTACHMENT.Specification of Letters Patent.
Patented Oct. 1, 1918.
Application Sled March 23, 1917, Serial No. 156,911. Renewed February 27, 1918.' Serial No. 219,539.
To all whom it may concern:
Be it known that I, JERRELL BENNErr, a
citizen of the United States, residing at
Grapevine, in the county of Tarrant and
5 State of Texas, have invented new and use-
ful Improvements in Pencil-Lighting At-
tachments, of which the following is a speci-
fication.
This invention relates to illumination,
10 and more especially to portable, self-con-.
tained devices for permitting the illumina-
tion of a portable article when desired; and
the object of the same is broadly to com-
bine an electric lamp with a pencil, pen, ot
15 the like mounted within its, casing, so that
the lamp may be illuminated to light the
surface being written on.
The invention is carried out as more fully
set forth in the following specification and
20 shown in the drawings wherein:-
Figure 1 is a central longitudinal sectional
view of this device complete, showing it
adapted for use in connection with a pencil
point.
26 ' Fig. 2 is a perspective detail showing how
the point protrudes through the annular
lamp or bulb.
Fig. 3 is an enlarged sectional detail of
the annular lamp itself.
80 Fig. 4 is an enlarged sectional detail
showing the circuit closer in a different po-
sition from that shown in Fig. 1. .
In the drawings the numeral 1 designates
the pencil case of tubular formation, and 2
35 is the removable cap at its front end Which
when applied covers the tip of the pencil 3.
I desire it understood that where I herein
speak of a pencil as shown in the drawings,
it is quite possible to substitute some other
40 article such as a pen or brush. The rear
end of the case in the present instance is
open, and temporarily closed by another cap
or closure 4. When this is removed access
is had to the interior wherein is stored a
45 battery 5 of any appropriate type. Across
the case at about its midlength is a parti-
tion 6, forward of which the pencil or other
instrument 3 is mounted therein in any suit-
able manner.
50 In Fig. 3 is best seen the form of lamp or
bulb which I preferably employ in this con-
nection. The same has an annular body 10
of glass hermetically sealed as usual, and an
annular threaded shank 11 which screwed
55 into an appropriate socket 21 within the
casing, and the filament 12 is indicated inthis view as extending completely around
the annular body and making convolutions
or disposed in other zigzag paths there-
through, the extremities of the filament be- 60
ing connected with the lead wires 22, 23 as
shown. The wire 22 is carried down within
the case as seen in dotted lines and con-
nected with the lower end of the battery 5
in a manner not necessary to describe in de- 65
tail. But an important feature of my in-
vention is the switch or button for throw-
ing the lamp into or out of electrical connec-
tion with the battery. This is shown in Fig.
1 as part of the ordinary pocket clip 13 by 70
means of which the case is held to the edge
of the vest pocket or the like when it is not
in use. This clip is shown as having a
knob or ball at its free end, and its other
end is rigidly carried by an insulated button 75
14 slidably mounted in a slot 15 in the side
of the casing and in constant contact with
the wire 23, the latter being held to but in-
sulated from the casing as at 24 and leading
to the bulb as shown. Secured at an ap- 80
propriate point in the wall of the casing
and insulated therefrom is a contact from.
which a wire 26 leads to the upper end of
the battery or batteries 5. The parts are
shown in Pig. 1 with the circuit broken, be- 85
cause the ball of the clip does not touch the
contact 25. In this condition the operator
inserts the device in his pocket and the edge
of the latter passes under the ball. In fact.
if he should insert the device in his pocket 90
when the parts stand as seen in Fig. 4, the
edge of the pocket would pass between the
ball and the contact 25 and the circuit would
be broken. However, as soon as he desires
to use the device, he removes it from his 95
pocket and slides the clip along in the slot
until its tip or ball comes opposite to and
falls into touch with the contact 25 so that
the current is completed and the light with-
in the bulb is illuminated, and then when 100
he takes off the cap 2 and reverses the de-
vice the rays of light from the lamp or bulb
are directed along all sides of the pencil
point 3 onto the matter being written. The
fact that the lamp is annular and the fila- 105
ment extends all around the pencil, prevents
the latter from casting a shadow onto that
portion of the paper on which the user is
about to write, and therefore I consider this
is a decided improvement over such an ar- 110
rangement in which a small lamp or bulb
stood alongside the pencil or other instru-1,280,374.
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Bennett, Jerrell. Pencil-Lighting Attachment., patent, October 1, 1918; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth1257955/m1/2/: accessed June 23, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.