Year: 1899

page_text: I, FREDERICK CLARENCE EDGAR, Outfitter, 66, Belmont Road, St. Andrews,
Bristol, do hereby declare the nature of this invention to be as follows:-
The object of this invention is an improved reservoir penholder which shall
have the following advantages.
(1) The air supply to the reservoir is unaffected by the shape or size of the
nib so that many different nibs may be used.
(2) The feed tube shall have a comparatively large passage for the ink & so
prevent stoppage.
(3) The nibs may be removed & replaced & the reservoir charged with
cleanliness & dispatch.
To accomplish my purpose I make the feed tube of a rather short tube with.
an internal bore of about 3 or of an inch.
This feed tube fits into the concave side of the nib and at one end has a detach-
able reservoir and at the other end it is turned to meet the nib, the diameter of
the opening on the nib being not greater than the internal diameter of the
feed tube namely about or of an inch. A portion of the feed tube is extended
beyond this opening & is shaped something like the writing points & runs
parallel with the nib. In a cheap variety it might be necessary to use 2 or
more parts to secure this shape feed tube but the principle would remain the
same. The feed tube & nib are secured in position by being passed together
into a sleeve preferably of steel which may have a rather large diameter but
secure the necessary friction by contractions of certain portions of its diameter
by ridges, bosses, or any other means.
This sleeve is secured within a short tube, to which is fitted a detachable
tube which serves as a cover for the reservoir.
If desired the short tube may be omitted & the detachable reservoir cover
fitted to the sleeve or the sleeve may be omitted & the nib and feed tube be held
in position by being passed into the short tube ridges & bosses being used in the
latter if necessary.
To stimulate the flow of ink through the reservoir and feed tube a wire may
be used if desired.
Dated this 23rd day of October 1899.
I, FREDERICK CLARENCE EDGAR, of 66, Belmont Road, St. Andrews, Bristol,
Tailor, do hereby declare the nature of this invention and in what manner the
[Price Sd
:

page_text: same is to be performed, to be particularly described and ascertained in and by
the following statement:-
My invention relates to an improved reservoir pen holder.
The reservoir or fountain pen holders at present in use possess various dis-
advantages. Some types are expensive to construct, and whilst fairly satis-
factory in use are nevertheless liable to stoppage from the smallness of the
passages used and are also too expensive to admit of the widest possible useful-
ness. Moreover most of them can only be employed with a special nib, usually
of expensive construction and material. Cheaper types, on the other hand, leave
much to be desired in the matter of efficiency.
My improved reservoir pen holder is distinguished by the following principal
advantages:
1. The air supply to the reservoir is unaffected by the shape or size of the nib
used, consequently almost any kind of nib may be employed. The large size of
the ink passage ensures the apparatus against stoppage and does away with the
necessity of employing any special device for the admission of air to the
reservoir.
2. The nibs may be very easily removed and replaced, and the reservoir can be
recharged without difficulty, and with perfect cleanliness.
3. The construction of the entire apparatus is simple and presents no
mechanical difficulties, consequently the cost of production will be low, and
the pen holder can be sold at a very reasonable price.
Reference is made to the accompanying drawings in which I have represented
the construction of my improved pen-holder. In these drawings:
Figure 1 represents a longitudinal section of the pen-holder as usually con-
structed.
Figure represents a section of a modified form of construction.
Figure is a section on the line A, B, of Figure 1.
Figure 4 is a section of Figure 1 on the line C, D.
Figure 5 is a detail shewing a view from above of the discharge opening of
the feed tube.
Figure 6 is an enlarged view of the front end of the pen holder.
Figure 7 is a section of a modification hereinafter described.
The operative parts of the device comprise an outer tube or casing 1, an
inner casing or reservoir 2, the feed tube or ink duct 3, a nib holder 4, and a
nib 5. These parts are united in any convenient manner; for instance, in
Figure 1 they are simply slipped over one another, whereas in Figure 2 the
ink duct 3 is screwed into the reservoir 2. The outer tube 1 may be of any
desired pattern, material, or shape, but I usually prefer to make it of metal,
and hexagonal or octagonal in section (see Figure 4). Between this outer tube 1
and the reservoir 2 I arrange an annular air space which prevents the heat of
the hand unduly influencing the flow of ink from the reservoir. The inner tube
or reservoir 2 may be constructed of metal, vulcanite or other suitable material.
The feed tube 3 is a hollow tube of the section shewn, arranged to pass down
into the ink reservoir to a considerable distance when the parts are assembled,
for the reason hereinafter set forth. Its interior forms a tube of comparatively
large bore, and is quite free from any obstruction or interruption. It terminates
in front in a circular aperture 6 having at its front side a slit 7 in the terminal
beak of the duct. The said aperture and slit are in close proximity to the
under side of the nib.
Between the exit aperture 6 and the body of the feed tube 3 there is a groove
or depression S. A slit in the nib holder 4 in combination with a longitudinal
slit in the said holder increases the springiness of the same, and facilitates the
correct placing of the nib.
The feed tube 3 has within it the ink duct, the diameter of which is from
three-sixteenths to one-fourth of an inch, and the ink aperture 6 is substantially

page_text: of the same diameter. There is consequently an unobstructed flow of ink to
the nib.
The apparatus is operated as follows:-
The outer tube 1 having been removed, and the ink reservoir 2 unfastened
from the rest of the pen-holder, the said reservoir is filled with ink practically
to the top, being held with its hinder end vertically downwards during the
operation. The feed tube 3 is then inserted, and being pushed down into the
reservoir 2 and fitting tightly within the same, obliges the ink which is dis-
placed by the inner end of the tube to rise in the duct until it reaches the nib.
The outer cover having been replaced the penholder is now ready for use.
The arrangement of the large open aperture and wide ink duct gives a ready
flow of ink to the nib which is further facilitated by the slit, but any excessive
discharge of ink is prevented by the shape of the opening and there being no
other aperture to act as an air inlet than the ink duct itself.
The groove or depression 6 has for its object to prevent any flow of ink by
capillary attraction, towards the hinder end of the nib, which might otherwise
occur when the pen is placed in a horizontal, inclined, or reversed position.
In the construction described the feed tube and nib are secured in position
by being passed together into a sleeve or nib holder 4. This sleeve or nib
holder is shewn on an enlarged scale in Figure 6. It is preferably composed
of a flat piece of thin steel bent into the required cylindrical form so that the
adjacent edges of the piece form a longitudinal slot parallel to the axis of the
cylinder. In addition to this I provide a slit 9 which has the purpose of render-
ing the holder more springy, of co-operating with the action of the groove 6
already described and by having its posterior edge turned inwards to a slight
degree, prevents the nib holder from being pushed out of its place when detach-
ing the reservoir or otherwise. Such a sleeve would be preferably secured within
a short tube holding a detachable tube which serves as the reservoir cover 1.
If desired, however, the short tube may be omitted and the detachable reservoir 2
fitted direct to the nib holder 4; or the nib holder may be omitted and the nib
and feed tube 3 be held in position by being passed into the short tube above-
mentioned. Or the said tube may have ridges or bosses internally or like
means for holding it in place.
Referring finally to the modification illustrated in Figure 7, 10 is a nozzle
threaded at its hinder part where it screws into the reservoir (not depicted) the
bore of this nozzle is enlarged at the point 11 into which is fitted the nib 12
and the plug 13 enclosing the ink duct as usual. The nib 12 and the plug 13
must quite fill up the bore at 11 so that when the reservoir is screwed on the
ink duct forms the sole inlet for air or exit for ink as already set forth.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is--
1. In a reservoir penholder, an ink duct non-capillary throughout its whole
length and unobstructed by any internal wire, contraction, or diaphragm, having
an outlet of diameter approximately equal to that of the duct, substantially as
and for the purpose set forth.
2. In a reservoir penholder, in combination, an ink reservoir, a non-capillary
tube forming an ink duct and having an unobstructed outlet adapted to deliver
the ink to the nib by gravitation, said tube fitting partially within the reservoir
and thus forcing the ink therein to rise within it, and a groove or depression
between the outlet and the body of the ink duct adapted to prevent the escape
of ink towards the hinder end of the nib.
3. The improved reservoir penholder substantially as described and illustrated
in Figures 1, 3 and 4 of the accompanying drawings.
4. The improved reservoir penholder substantially as set forth and illustrated
in Figure 2 of the accompanying drawings.

page_text: 5. The improved reservoir penholder substantially as set forth and illustrated
in Figure 7 of the accompanying drawings.
Dated the 24th day of July 1900.
W. P. THOMPSON & Co.,
Of London, Liverpool, Manchester and Birmingham.