A New or Improved Reservoir Pen.
Year: 1892

page_text: Date of Application, 22nd Dec., 1892
Complete Specification Left, 29th Apr., 1893-Accepted, 2nd June, 1893
PROVISIONAL SPECIFICATION.
A New or Improved Reservoir Pen.
I, WILLIAM HIGGS, of 10 Acacia Place St. John's Wood, London, N.W.
County of Middlesex, Gentleman, do hereby declare the nature of this invention to
be as follows :—
This invention relates to a "new or improved reservoir pen "and has for its
object to provide a reservoir pen that will be simple in construction; durable;
easy to manipulate; at the same time combining all the the advantages of the most
expensive pens; and to dispense with the dirty and inconvenient method of filling
by a syringe o bulb. My invention consists essentially of a hollow barrel or
cylinder, of vulcanite or other suitable material; about four inches long and three
eights of an inch in diameter; on which is cut an inside and outside thread. On
the end of the barrel containing the inside thread I provide a cylinder about two
inches long, of smaller diameter; and of the same material as the barrel, or other
suitable material said smaller cylinder having a hole drilled nearly its entire length;
one end of the cylinder; and the under part or the part diametrically opposite the
orifice hereafter mentioned is rounded off obliquely, the top part, or diametrically
opposite the oblique portion and at a slight distance from the point or end; another
hole is drilled down; of smaller diameter, than the other; meeting the larger drilled
hole; which hole or orifice has for its object to provide a duct for supplying the
ink to the nib. In the duct so formed I provide a small wire running the entire
length of the drilled out portion, which wire is to aid the flow of the ink by
capillary attraction. On the end of the smaller cylinder I provide an outside
thread corresponding with the inside thread on the larger barrel or cylinder and
which screws into the same. A part of the threaded portion is cut down to a
smaller diameter to allow the attaching of a rubber reservoir or bag. The rubber
reservoir is of such a diameter as to fit into the larger barrel or cylinder with ease
and of such a length that the end projects about half an inch when it is firmly
attached to the smaller cylinder & said smaller cylinder is screwed to the larger.
This end which projects is sealed by a vulcanite plug, or other suitable material.
On the end of the barrel or cylinder on which is cut the outside thread, I provide
a cap having an inside thread cut in it to correspond with the outside thread on
the barrel, when the said cap is screwed on a hole is drilled through the cap and
also through the vulcanite plug which seals the rubber bag, or reservoir a pin is
then passed through and rivited. The nib is placed on the smaller cylinder
aforementioned so that the concave surface of the said nib is in contact with the
upper portion of the said cylinder containing the orifice. A small loose metal
band is provided on the smaller cylinder and the uib is afixed by sliding the nib
between the space formed by the metal band and the cylinder. A cap containing
a washer of rubber or other suitable material is also provided on the smaller
cylinder so that when the pen is not in use, the nib is slid back from over the
orifice & the cap put on, thereby effectually preventing any leakage of ink into
the pocket, when the pen is in use the cap is removed and placed on the other end
of the pen. To fill my pen--the nib is preferably slipped back from over the
orifice and the cap containing the end of rubber reservoir or bag and the rivet, is
revolved or unscrewed about three times; it is obvious that as the rubber and cap
are riveted by a pin passing through both, the rubber reservoir is twisted thereby
expelling all the air, the end of the pen containing the orifice is dipped in the ink
and the cap is then revolved on its thread back to its former position, the ink
is sucked into the reservoir to replace the vacuum caused by the expelling of the air.
Dated this 92nd day of Doomba 1800

page_text: Fig. 7. another view or the smanter cy
Fig. 8. a modification of my invention.
W
My invention consists of a hollow barrel or cylinder a of vulcanite, brass or any 2
other suitable material on the ends of which is cut an inside and outside thread a'
and a respectively.
viz.
On the end of the barrel or cylinder a on which is cut the inside thread a¹ I
provide a smaller cylinder b which has a screw thread 6' cut upon one end corre-
This smaller cylinder 6 may be of any 2
sponding to the thread a' on the barrel a.
suitable material: but preferably the same as the larger cylinder or barrel
vulcanite. The other end 63 of the smaller cylinder is rounded off as shewn in the
accompanying drawings, & is provided with two longitudinal shoulders 6* which
holds the nib c in position so that it cannot move either to the right or left. A
slot is cut across the cylinder b which has for its object to prevent any ink
accumulating under the nib, by capillary attraction where it is not required, and
which might be the case where it not provided.
I also provide a longitudinal shallow channel 6º on the smaller cylinder in order
to allow the nib to be moved freely back and forwards and to prevent clogging.
A little distance from the end of the smaller cylinder I drill a small hole be
which runs into a larger hole this hole in its turn leads to the end b¹ of the
On the
cylinder b. This hole has for its object to supply the ink to the nib c.
smaller cylinder I provide a sleeve or collar d shewn more clearly in Fig. 3 which
has a slot d' cut nearly its entire length. This slot has for its object to allow the
knob or stud c¹ of the nib e to travel to and fro. This knob c¹is provided to enable
the nib to be moved forward and backward; as required; down the smaller
cylinder b.
The sleeve or collar d is screwed to the smaller cylinder 6 by the screw d². A
portion of the thread b¹ is cut down 6º to allow of the rubber reservoir or bag e
being attached inside the barrel or cylinder a. The said bag or reservoir e is of
india rubber or any suitable elastic material and of such a diameter that it can be
placed inside the barrel or cylinder a with ease; and of such length that when it is
firmly fixed at 6 to the smaller cylinder b & the larger cylinder a is screwed to
the said smaller cylinder b; the end e' of the bag or reservoir projects slightly.
This end is sealed by a vulcanite plug as shewn in the accompanying drawings.
On the end a³ of the larger barrel or cylinder a I provide a cap a which screwes on
to the cylinder a when the said cap as is screwed on to the cylinder a a hole is

page_text: drilled a through the cap and also through the vulcanite plug e¹ which seals the
reservoir e. A pin is the passed through and riveted.
In afixing the nib c I first screw on the sleeve or collar d on to the smaller
cylinder 6 the nib is then slid between space f formed by the concave surface of the
sleeved & the convex surface of the smaller cylinder b. A small metal band g is
then placed on the sleeve d. This band allows of the nib being moved forward to
its proper distance and no further, owing to the knob c¹ of the nib coming in contact
with the aforementioned band g. A cap h containing a lining h¹ of rubber is
provided. When the pen is not in use the nib is slid back on the smaller cylinder
in such a way that the rubber lining comes in contact with, and covers the orifice b³
of the hole or ink duct 6, thus effectually preventing any leakage. When the pen
is in use the cap h is removed & placed on the other end of the aº.
pen
My modification will be readily understood by inspecting Fig. 8 of the accom-
paning drawings, all the parts being metal excepting the vulcanite smaller
cylinder k to which the reservoir ¹ is attached. The mode of working is the
same.
To fill my pen, the nib is preferably slid back from over the orifice 68, the cap a³
is then revolved on its thread or unscrewed about three times or more. It is
obvious that as the rubber bag or reservoir e is firmly attached to the smaller
cylinder b on one end and on the other riveted to the cap a³ by the pin passing
through the cap and the rubber bag e; the reservoir or bage is twisted thereby
expelling the air from the inside. The end of the pen b' containing the ink duct or
hole 68 is the dipped into the ink; the cap is revolved back to its former position
and the ink is thus sucked into the reservoir e to fill or replace the vacuum caused
by the expelling of the air.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
:-
1st. The smaller cylinder b. The sleeve or collar d. The mode of fixing the
rubber reservoir or bag e to the cylinders a & b. The knob or stud
combination with the nib c substantially as described.
in
2nd. The complete reservoir pen constructed substantially as described and
ascertained in and by the accompanying drawing, and Specification.
Dated this 29th day of April 1893.
TAGS
WILL
YTATTIACAR
HIGGS.