A New or Improved Reservoir ren.
Year: 1897

page_text: Date of Application, 11th Mar., 1897-Accepted, 1st May, 1897
A New or Improved Reservoir ren.
I, THOMAS ANDREW, of 156 Virkery's Chambers, 82 Pitt Street Sydney, in
the Colony of New South Wales, Engineer, 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 :-
This invention relates to that class of pen, known as the fountain or reservoir
pen, and is especially designed to store two different kinds of ink, so as to enable
any person using same to write with either of the inks as desired.
It frequently occurs, that accountants, clerks, and others use black and red
inks alternately, necessitating two pens, causing much inconvenience and waste of
time.
Now the object of this invention is to provide a duplex pen, and consists
essentially of a reservoir tube with a central division forming two compartments,
to permit of the storage of two different inks, suitable means are provided for
charging the reservoirs. Two writing nibs are placed back to back in the end of
the reservoir tube, which are supplied with ink, from the reservoirs by small
feeding tubes, a device is attached to the latter to permit of either of them being
thrown out of operation, so that when it is desired to use one of the nibs the flow
of ink to the other will be cut off. To write with the other nib, and thus use a
different ink, all that is necessary is to revolve the pen in the hand, press the
regulating device, thereby starting the flow of ink.
But in order that this invention may be more fully understood reference will
now be made to the accompanying sheet of drawings which forms a part of this
specification and in which ;-
Figure 1 is a sectional view of this invention.
Figure 2 is a top view of the disc showing feeding and vent holes.
Figure 3 is a sectional view on line I, I, Figure 1 looking upwards and
shewing regulating device, one of the feeding tubes being open, and the other
closed.
In all figures similar letters are used to denote similar parts.
A, is the body of the pen, consisting of a tube having a central division B,
forming two reservoirs, C and D, into the top of this tube is inserted a short
inner tube E, and where this tube extends above the outer tube A, it is wormed
so that the cap F may be screwed on. The central division B extends upwards
through the inner tube E, to meet the top G of the cap F. Two small holes H
and I, are provided in the top G of the cap F, communicating with the
reservoirs C and D, a screw or stud J is provided in the centre of the top G of
the cap.
A disc K, is placed over the top G of the cap F, and is provided with two
vent holes L, L, and a feeding hole M, also horns N, N. This disc is kept in
position by the wing nut O, on the screw or stul J, which latter passes through the
opening P, provided in said disc.
The vent holes L, L, are so placed, that they will simultaneously communicate
with the openinge H, and I, provided in the top G of the cap F.
When it is desired to charge the reservoir C and D. with ink, the disc K,
is turned by means of the horns N, N, so as to bring the feeding hole M, in
communication with the openings Ĥ and I, alternately, and the ink may be
--'

page_text: introduced into the reservoir by any suitable means through the said filling holes.
It will be obvious that when the vent holes L, L, are placed immediately over the
openings H and I, the feeding holes M, will be blocked by the solid part of the
top G, and if the disc K is turned just sufficiently to throw the vent holes out of
gear, both the latter and the feeding hole M, will be blocked by the solid part
of the top G, the wing nut O may be used to clamp the disc K in any desired
position.
A packing of india-rubber or other suitable material may be provided, on the
inner under side of the top G, so that the cap F may be screwed down tightly on
the top of the inner tube E.
Qand R, are the writing nibs set in the tube A, in the position shewn in the
drawings, being supplied with ink through the feeding tubes S and T, respectively,
these feeding tubes are tapered, the outer ends presenting a very fine opening
against the under sides of the nibs.
U is an S shaped piece, constructed of any suitable material, provided with
two openings V and W near its extremities, the two curved ends of U pass through
openings in the feeding tubes S and T, and are so arranged that when either of the
openings V and W, are in the correct position to permit the ink to flow through
one of the feeding tubes, the ink will be prevented from passing through the other
feeding tube, by the solid part of U blocking the passage. The regulating
device U, may be operated by one of the fingers while using the pen, by pressing
the lowermost curved end inwards, permitting the ink to flow and supply the nib
adjacent thereto, at the same time shutting off the supply to the other nib.
A cap or cover may be used to protect the nibs when the pan is not in, and
would be provided with internal grooves or recesses, which would engage with the
curved ends of the regulating device U in such a manner as to keep same in a
central position and thus close both feeding tubes. If such a cap be used on being
removed it may be placed on the other end of the pen, and air will be supplied
to the vent holes, through the recesses or grooves before mentioned.
My invention may be constructed of any suitable material, but it is preferable
to use vulcanite, it is also desirable to use gold nibs, but steel ones may be used as
they are inserted or removed from the pen with ease a curved recess being provided
in the solid lower end of the tube.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, 1 declare that what I
claim as novel and desire to protect by Letters Patent is :-
1st. In a reservoir peu, a divided tube or chamber, adapted to store two different
writing fluids to be supplied to two different writing nibs, said divided tube or
chamber being provided with feed and vent holes, substantially as herein described
explained and illustrated in the drawings.
2nd. In a reservoir pen, a reservoir consisting of a tube having a vertical
division therein, so arranged that two different writing fluids may be stored in
the compartments created by the said tube, and vertical division, the writing
fluids being supplied to two nibs by feed tubes, so arranged that the said writing
fluids will be delivered on the under inner side of the said nibs, substantially as
herein described, explained and illustrated in the drawings.
3rd. In a reservoir pen, provided with a divided chamber adapted to store two
different kinds of writing fluids and having two writing nibs and feeding tubes,
a feed regulating device consisting of an S shaped piece, the ends of which pass
through said feeding tubes and so arranged, that it may so operate, that the
supply in one of the feeding tubes may be cut off or blocked, and at the same
time the writing fluid permitted to flow through the other feeding tube, sub-
stantially as herein described, explained, and illustrated in the drawings.
4th. In a reservoir pen the combination and arrangement with the divided
reservoir tube, of two writing nibs and feeding tubes, of a cap provided with feed
holes, and a revolving disc placed on top of said cap and provided with vent

page_text: holes and feed hole, to admit of a passage of air or writing fluids into the said
divided reservoir, substantially as herein described, explained and illustrated in.
the drawings.
5th. The combination and arrangement of the various parts herein described,
5 explained and illustrated all together forming the "new or improved reservoir
pen" substantially and for the purposes set forth.
Dated this 10th dex of March 1807
CHEESBROUGH & ROYSTON,
15 Water Street, Liverpool, Applicant's Patent Agents.