IMPROVEMENTS IN RESERVOIR PENS, AND IN APPARATUS FOR FILLING THE A communication from abroad by
Year: 1881

page_text: LETTERS PATENT to William Robert Lake, of the Firm of Haseltine, Lake,
& Co., Patent Agents, Southampton Buildings, London, for an Invention of
"IMPROVEMENTS IN RESERVOIR PENS, AND IN APPARATUS FOR FILLING THE
A communication from abroad by François Xavier Poznánski, of
SAME."
Paris, France.
PROVISIONAL SPECIFICATION left by the said William Robert Lake at
the Office of the Commissioners of Patents on the 23rd June 1881.
"
WILLIAM ROBERT LAKE, of the Firm of Haseltine, Lake, and Co., Patent Agents,
Southampton Buildings, London. IMPROVEMENTS IN RESERVOIR PENS, AND IN
APPARATUS FOR FILLING THE SAME." [A. communication from abroad by François
Xavier Poznánski, of Paris, France.]
This Invention relates to an improved reservoir pen holder or writing instrument,
and comprises a holder in which a supply of ink is held, and a separate ink
receptacle from which the ink is supplied to the holder, both of which parts.
are hereinafter described and shewn in the accompanying Drawing.
My Invention offers the following advantages, viz. :-
By suppressing the necessity for constantly dipping the pen into the ink-stand
it allows of very rapid writing; it permits of using ordinary ink and pens, and a
simple pressure on the piston always giving a uniform quantity of ink, sufficient for
writing a few lines, an excess of ink in the pen is avoided, and consequently the
blots thereby occasioned; and it has also the advantage of being portable without
danger of spilling the ink, which is considerably economized.
In order that iny system may be readily understood I have shewn the same in
the accompanying Drawing, in which
Figure 1 is an exterior view of the reservoir pen holder.
Figure 2 represents the recipient or ink-bottle having an elastic bottom.
Figure 3 is a vertical section of the said reservoir pen holder drawn to an
enlarged scale.
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page_text: The said pen holder is composed of a tube forming a reservoir of any desired
dimensions. This tube or reservoir may be made of wood, metal, hardened india-
rubber, or of any other appropriate material. The upper part of the tube a is
provided with an end piece, on which is adapted a small india-rubber tube b, the
upper end of which is closed so as to forin the tube a into a reservoir having
an elastic end. This tube b is fixed in its position by a sleeve c, which is secured
to the tube or reservoir a on a part thereof which is reduced in diameter as shown.
The sleeve c containing a small piston d extending beyond the top of the pen-
holder, the disc of which piston rests on the top of the tube b.
A shoulder c¹ formed in the upper part of the sleeve c serves to arrest the
upward movements of the piston d.
At the lower part of the tube a there is an enlargement, in which is fitted the
disc of the plug e. This plug is hollow and terminates in a rod f provided at its
lower end and on one side with an aperture g. An ordinary pen is placed against
the rod so that it is interposed between the opening and the tube i, to be
afterwards described.
The ink passes from the reservoir a through the hollow part of the plug and
through the hole g to the pen upon the tube or elastic compartment b being
pressed.
The channel or hollow space in the plug and the tube a are traversed by a rod h
composed of some non-hygroscopic material which neutralizes capillarity and which
facilitates the movement of air and the ink in the reservoir.
In the interior of the lower part of the tube a is an enlargement which receives
the tube projecting beyond the lower part of the tube or reservoir. It is
bevelled, and is of such a width as to fit closely into the orifice of the ink-bottle /.
The bevelled tube i, in place of being fixed into the tube or reservoir a, may be
made in one piece with the latter.
A hollow cover or shield serves to protect the pen when not required for use
The hollow part of this cover communicates with that of the tube, so as to avoid
the squirting of the ink when the said cover is put on the pen holder.
The ink-bottle is a recipient which may be composed of any suitable material;
the bottom of this bottle is formed of a sheet, tube, or elastic ball, which on being
compressed forces the ink into the reservoir a.
The orifice of the ink-bottle k is furnished with a washer m made of india rubber
or of any other suitable material, which forms a tight joint when the tube i of the
reservoir a is inserted into said orifice.
When it is desired to use the pen holder it is filled as has been described,
that is to say, it is applied to the ink-bottle, the bottom of which is pressed
intermittently.
When the reservoir is sufficiently filled the pen-holder may at once be used for
writing, the small piston & which forces the ink to follow the rod h being pressed
at proper intervals,
The ink-bottle k and the pen holder being placed in communication and the
joint being quite tight they act together as a sucking and forcing pump.
The ink bottle k may also be made to act as a syphon by suppressing the india
rubber bottom.
I may manufacture all the parts of my pen holder of any suitable metal or
material,

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said William Robert Lake in the Great Seal Patent Office on the
23rd December 1881.
WILLIAM ROBERT LAKE, of the Firm of Haseltine, Lake, & Co., Patent Agents,
Southampton Buildings, London. "IMPROVEMENTS IN RESERVOIR PENS, AND IN
APPARATUS FOR FILLING THE SAME." A communication from abroad by François
Xavier Poznánski, of Paris, France.
This Invention relates to an improved reservoir pen or writing instrument,
which I term the "velocigraph," by reason of the great rapidity with which it may
be used in writing. The said Invention comprises a holder, in which a supply of
ink is held, and separate ink-receptacle, whose bottom consists of an elastic or
yielding membrane or diaphragm, and from which the ink is supplied to the said
holder, as hereinafter described.
My Invention affords the following advantages, viz. :-By dispensing with the
necessity for constantly dipping the pen into the ink-stand it allows writing to
be effected very rapidly; it permits the use of ordinary ink and nibs, and a simple
pressure on a piston always supplies a uniform quantity of ink, sufficient for
writing a few lines; and an excess of ink in the pen, with the consequent liability
to blot, is prevented'; moreover my improved pen may be carried about without
danger of spilling the ink, which is thus considerably economized.
The said Invention is illustrated in the accompanying Drawing, in which
Figure 1 is an exterior view of my improved reservoir pen, and
Figure 2 is a similar view of the ink-receptacle or reservoir having the elastic
or yielding bottom, as hereinafter described.
Figure 3 is a vertical section of the said reservoir pen drawn to an enlarged
scale, and
Figure 4 is a similar view of the aforesaid ink-receptacle.
Like letters indicate the same parts throughout the Drawing.
My improved pen has a holder consisting of a tube a, which forms a reservoir,
and may be of any desired dimensions. This tube or reservoir may be made of
wood, metal, hardened india-rubber, or of any other suitable material.
The upper
part of the said tube a is provided with an end-piece, whereon is fitted a small
india-rubber tube b, whose upper end is closed, so that it practically forms an elastic
end to the reservoir a. This tube b is held in position by a sleeve c, which is
fitted upon a reduced portion of [the tube a below the end piece, whereon the
tube b is fitted, as clearly shewn in Figure 3.
The sleeve c contains a small piston d, one of whose ends extends beyond the top
of the pen-holder, and whose other end is adapted to be pressed against the top of
the tube b. A shoulder c¹ at the upper part of the sleeve c serves to arrest the
upward movement of the said piston d.
In the lower end of the tube a is fitted the plug e. This plug is hollow, and
terminates in a hollow rod or tube f, provided at its lower end and on one side
with an aperture g. An ordinary nib is placed against the tube f in such a manner
that it lies between the opening g and the tube i, hereinafter described. Through
the hollow part of the plug and the said hole g the ink passes from the reservoir a
to the pen proper or nib, when pressure is exerted upon the elastic tube or
compartment b.
The channel or space in the aforesaid plug and the tube a are traversed by a
rod h formed of some non-hygroscopic material, which neutralizes capillarity and
facilitates the movement of the air and ink in the reservoir.
In the interior of the lower part of the tube or reservoir a is an enlargement, in

page_text: which is placed the tube i projecting beyond the lower part of the said tube or
reservoir. This tube i has its outer end bevelled, and is of such a diameter as to
fit closely into the orifice of the ink-bottle or receptacle k. The said bevelled
tube instead of being fixed in the tube or reservoir a may be formed in one piece
therewith.
A hollow cover or shield serves to protect the nib when not in use. The hollow
part of this cover communicates with that of the tube, so as to prevent the squirting
of the ink when the said cover is put on the pen holder.
The ink-bottle or receptacle k may be formed of any suitable material, and has a
bottom formed of an elastic sheet, tubo, or ball, which on being compressed forces
the ink into the reservoir a. The orifice of the said ink-receptacle k is furnished
with a washer or disc m of india-rubber or other suitable material, which forms a
tight joint when the tube i of the reservoir a is inserted into the said washer.
When it is desired to use the pen the holder is filled, as above described, that is
to say, it is applied to the ink-receptacle k, from which the ink is caused to flow
by pressing the bottom of the said receptacle intermittently.
When the reservoir a is filled to the desired extent the pen-holder may at once
be used for writing, the small piston d which forces the ink to follow the rod / in
contact with the pen being pressed at proper intervals.
When the ink-receptacle and the pen-holder are placed in communication and
the joint is made quite tight by the washer m they act together as a suction and
force pump. The said ink-receptacle may also be made to act in the same
manner as a syphon by dispensing with the india-rubber bottom of the same.
The various parts of my pen-holder may be formed of any suitable inetal or other
material.
Having thus fully described the said Invention as communicated to me by my
foreign correspondent, and the manner of performing the same I wish it understood
that I claim,
The improvements in reservoir pens, and in apparatus for filling the same,
substantially as above described and represented in the accompanying Drawing.
In witness whereof, I, the said William Robert Lake, have hereunto set my
hand and seal, this Twenty third day of December, in the year of our Lord
One thousand eight hundred and eighty one.