close

Вход

Забыли?

вход по аккаунту

?

Патент USA US2123406

код для вставки
July 12, 193.8,
`F. c. DELI
FOUNTAIN PEN
3 Sheets-Sheet 1
wàm f,
r.
(/V1Yt/ .ÁY
vd#
4
July 12, 193s.
,.-_ C, DEL,
`
f
2,123,406
FOUNTAIN PEN
Filed Sept. 5, 1935
5 Sheets-Sheet 2
July 12, 193s.
F. C. DELI
2,123,406
FOUNTAIN PEN
Filed Sept. 3, 1935
3 Sheets-Sheet 3
QNNNWW@.0
@@W@
3
3&2@s.
Patented July 12, 1938
2,123,406
UNITED STATES
PATENT OFFICE
2,123,406
FOUNTAIN PEN
Frank C. Deli, Chicago, Ill., assigner to Autopoint
Company, Chicago, Ill., a corporation of Il»
linois
Application September 3, 1935, Serial No. 33,8%>
9 Claims.
This invention relates to fountain pens and
more particularly to a fountain pen having a
filling device of the plunger type.
The heretofore known fountain pens provided
5 Vwith plunger type filling devices have the disad
vantage that the ink sooner or later ñnds access
to some part of the reciprocating mechanism
and sooner or later causes deterioration of the
same.
rThis objection I have eliminated in the
present invention by mounting the reciprocating
mechanism within an elongated elastic rubber
diaphragm which is sealed to the rear end of the
barrel and prevents access of the ink to the re
ciprocating mechanism, while at the same time
15" permitting longitudinal back and forth motion
of the plunger.
'
Among the objects of my invention is to pro
vide a fountain pen accomplishing the foregoing
results, and which at the same time is neat and
attractive in appearance and easy to operate.
A further object is to provide a fountain pen
having ñlling mechanism of the plunger type;
so constructed that its parts are easy to assem~
ble, will not easily get out of order, and are
readily accessible for inspection, adjustment or
repair.
-
.A still further object is to provide apparatus of
away, but showing the plunger advanced to the
forward end of the barrel.
and the threaded plunger propelling screw.
Fig. 4 is an enlarged detail longitudinal sec
tion of the plunger, diaphragm and some of the
associated parts.
Fig. 5 is a transverse section on the line 5-5 101
of Fig. 1.
Fig. 6 is an enlarged elevation of the sleeve
`within which operates the reciprocating mecha
nism.
-
Fig. '7 is an end elevation of Fig. 6‘.
Fig, 8 is a transverse section on the line 3'--8
of Fig. 2.
Fig. 9 is an enlarged longitudinal section, part
ly in elevation, of a modiiied form of my inven~
tion.
Fig. 10 is a fragmentary section similar to the
right hand portion of Fig. 9, but showing the>
plunger rod retracted and in position to advance
the plunger.
Fig. 11 is a view similar to Fig. 10, but showing 25
the plunger in advanced position.
Fig. l2 is an elevation of the sleeve fixed to the
the class described that is economical to manu
facture, eñicient in operation and durable in con
plunger'for movement therewith.
struction.
line |3-l3 of Fig. 12.
‘
Another object is the elimination of an air
tube extending into the barrel from the forward
end, and thus provide a longer stroke for the
plunger and at the same time protect the parts of
the reciprocating mechanism from contact with
the ink, thus combining‘quick ñlling with long
life.
`
A further object is to provide novel means for
firmly and non-‘leakably securing the elongated
rubber diaphragm to the rear end of the‘pen
barrel.
‘
'
Other objects, advantages and capabilities will
later more fully appear.
My invention further resides in the combina
tion, construction and arrangement of parts il-a
lustrated in the accompanying drawings,4 and
while I have shown therein preferred embodi
ments I wish it understood that the same are
susceptible of' modification and change without
departing from the spirit of my invention.
In the drawings:
Fig. l is an enlarged longitudinal section part
ly in elevation of a fountain pen embodying my
invention.
v
‘ Fig. 2 is a View similar to Fig. 1, partly broken
Y
Fig. 3 is an enlarged detail longitudinal section
of the plunger operating- handle, the removable
plug for securing the rubber diaphragm in place, 5
Fig. 13 is an enlarged transverse section on the
.
3p
Fig. 14 is an enlarged transverse section on the
line lll-I4 of Fig. 12.
Fig. 15 is an elevation of the plunger operating
rod.
Fig. 16 is a view similar to Fig. 15, but showing 35
the rod rotated on its longitudinal axis through
an angle of 90°.
' Fig. 1-7 is an enlarged transverse section on the
line Il--I'l of Fig. 15.
Fig. 18 is an enlarged transverse section on the 4‘0
line iii-i8 of Fig. 16.
Fig. 19 is an enlarged view similar to Figs. 1
and 9, but showing a further modiñcation.
Fig. 20 is an enlarged fragmentary longitudi
nal section showing the plunger head in its for- 45
ward position.
Fig. 21 is an enlarged fragmentary longitudi
nal section showing the'control handle and plung~
er head in retracted position.
Fig. 22 is a transverse section on the line 22-22 50
' of Fig. 20.
Fig. 23 is a detail elevation of one of the clamp
ing members for the rubber bag.
Fig. 24 is an enlarged longitudinal section of the '
control handle.
55
2
2,123,406
Fig. 25 is a plan view looking toward the inner
end of the control handle.
Fig. 26 is an enlarged longitudinal sectional
view through the control handle, showing a slight
ber 29 and contacts with the inner face of said
button member, and at its other end passes
through the neck of the rubber bag, and through
the washer 8, it being flanged over the outer
ly different form from that shown in Fig. 19.
Fig. 27 is a view similar to Fig. 26, but the sec
face of the last mentioned washer, as shown at 33.
Rotation of control handle I4 in one direction
tion being taken on a plane at right angles to
that of Fig. 26.
Fig. 28 is an enlarged detail section through
10 one end of the rubber bag, the plunger head and
associated parts.
.
Referring in detail to the drawings, Figs. l to 8
show one embodiment of a fountain pen embody
ing my invention, comprising the barrel I, pro
15 vided at its forward end with the usual nib 2,
pen section 3 and associated parts, including the
usual feed bar and ink duct (not shown). Formed
in the barrel I adjacent its rear end is the inter
nal annular shoulder 4, upon which is seated a
20 washer or the like 5, against the outer face of
which Washer is positioned the laterally extend
ing marginal flange 6 of the elastic rubber bag 1.
Positioned against the outer face of flange 6 is a
washer 8, and tightly clamping the flange 6 be
25 tween washers 5 and 8 is the clamping plug 9,
which is provided with screw threads I0 engaging
similar threads formed on the interior of the
rear end of the barrel I. Formed in the outer
end of plug 9 are openings II to receive the
30 prongs of a Spanner wrench or the like for rotat
ing the plug 9 to clamp the marginal flange 6
between the shoulder 4 and plug 9.
Clamping plug 9 is formed at its outer end
with the reduced unthreaded portion I2, upon
35 which is rotatably mounted the skirt portion I3
of the control handle I4. The portion I2 being
unthreaded permits free rotation of control han
dieV I4. In the outer face of control handle I4 is
formed the recess I5 and the annular shoulder
40 I'E, against the latter of which after the parts
have been assembled is seated and secured the
button or disc I1. Control handle I4 is also pro
vided with the longitudinal opening I8, through
which passes the rod I9 formed at its outer end
45 with threads 20 upon which are threaded nut 2I
for tightening and holding rod I9 securely to con
trol handle I4 for movement therewith. .Also
for convenience in permitting the projections of
the Spanner wrench to reach into openings II
50 when the parts are assembled and it is desired to
unscrew clamping plug 9, control handle I4,is
provided with openings 22 which may be moved
into registry with openings II before button I1
is secured in position.
Rod I9 is provided with threads 23. Adjacent
55
the inner end of rubber bag 1 is plunger head or
piston 24, which is shown as comprising three (any
other suitable number may be used) discs, which
may be made of cork, rubber, composition ma
60 terial or any other suitable material.
Secured
to plunger head or piston 24 by means of washer
25 and machine bolt 26 is the elongated tubular
member 21 which passes through the plunger
head, the washer 28, the end of the rubber bag 1,
65 and the button member 29, into the interior of
the rubber bag 1. Just beyond the button member
29 the tubular member 21 is slightly increased in
diameter to receive the rod I9. At its outer end
tube 2‘! is slightly reduced in diameter at 3D, this
reduced portion being provided with screw threads
3l to engage the threads 23 on rod I9.
Surrounding that portion of tubular member
21 that is within the rubber bag 1, is an elon
‘ gated sleeve member 32, which at its inner end
passes through the opening in the button mem
will cause the plunger head 24 to advance toward
the forward end of the barrel because of the over
all length of the elongated tube 21 and rod I9
being increased by reason of threads 23 of rod 10
I9 carrying the reduced portion 30 and tube 21
to the left as viewed in Fig. l, the elastic rubber
bag stretching during this movement and the
parts extending to the position and in the manner
shown in Fig. 2. When the parts are in the posi
tion shown in Fig. 2, the plunger head 24 will act
as a piston to suck ink into the barrel upon the
control handle I4 being rotated in the opposite
direction to withdraw the plunger head 24 back
ward into retracted position, the ink being sucked 20
in through the usual ink ducts in the feed bar, it
being understood that during this operation of
sucking ink into the barrel the nib is dipped down
into the ink. If the first operation does not suck
a sufficient quantity of ink into the barrel to ñll
it, the operation described above may be repeated
any number of times desired. If desired, a suit
able washer or thrust member 34 may be inserted
in the end of the cavity 35 at the upper end of
30
the threads 23.
It is thus seen that I have provided a filling de
vice for a fountain pen in which the ink is pre
vented from access to the mechanism for causing
the reciprocation of the plunger head. Even
should any ink leak past the plunger head, it 35
could not get into the mechanism for causing re
ciprocation because of its being prevented access
thereto by the rubber bag. The screw 26 ñlls the
hole in the forward end of tube 21 and thus pre
vents access of ink to the interior of this tube.
The rubber bag is ñrmly clamped between the
button member 29 and the washer 28 by reason
of the tightening of the machine screw 2B, which
tightly clamps the associated parts between the
washer 25 and shoulder 35. Should any ink leak
past the plunger head 24, it not only will be pre
vented access to the reciprocating mechanism by
reason of rubber bag 1, but it will also be pre
vented from leaking at the rear end of the barrel
by reason of the marginal flange 6 of the rubber ¿
bag being firmly clamped between shoulder 4 and
clamping plug 9, which seals the rear end of the
pen against ink leakage.
In order to prevent undue rotation of the plung
er head 21 and associated parts during rotation ;
of the control handle I4, the outer sleeve 32 is
non-circular in shape, it being shown as hex
agonal, and it passes through a similarly shaped
opening in the washer 8. That portion of the
tubular member` 21 which slides within sleeve 32 is (if)
also similarly shaped, in the form illustrated this
being shown as hexagonal in Fig, 5, so that this
non-circular external shape will prevent idle ro
tation of the plunger head 24 during rotation of
the control handle I4 and rod I9.
When it is desired to remove the ñlling mecha
nism from the barrel for inspection, repairs, or
the like, this can be done by unscrewing clamping
plug 9 after having removed the button I1, nut 2I
and 'cap I4 (or by inserting the projections of a
spanner wrench through openings 22 and I I when
it is not desired to remove control handle I4 from
plug 9). Upon removal of plug 9 the washers 5
and 8 and rubber bag 1 may be withdrawn to
gether with the plunger head 24 from the barrel. 75
2,123,406
After inspection, repairs, or the like, these parts
may be returned to the barrel and securedin place
therein in the> manner set forth earlier in' the
specification.
‘
The embodiment shown in Figs. 9 to 18 will now
be described. In the embodiment shown in Figs.
9 to 18, in clamping the rubber bag 1 to the
outer end of the barrel I, the outer washer 31 is
formed around its central opening with a down
wardly extending flange 38, arranged at an angle
similar to the angle of the neck 39 of the rubber
bag, and within the central opening of the washer
31 is positioned the elongated tubular member
49, which at its outer end contacts with the
15 clamping plug 4l, which is screwed into -clar‘nping
position in a manner similar to that of the clamp
ing plug 9 shown in Fig. 1v, to prevent leakage of
ink at this end of the barrel.v Control handle 42
is formed at its inner end for a short distance
with the reduced portion 43, formed around its
exterior with screw threads 44 to engage with the
3
By pushing forwardly upon control handle 42,
the tubular member 40 andplunger head 24 will
be projected forwardly in the barrel l to the
position shown in Fig. 1,1. By dipping the writing
end of the' pen into ink and then pulling the con
trol handle 42 rearwardly so as to move the
plunger head 24 rearwardly in the barrel, ink
will- be sucked thereinto. If necessary this piston
like movement can be repeated any desired num
ber of times until the desired quantity of ink
has been sucked into’ the barrel. When the barrel
has the desired amount of ink in it, the control
handle' 42 and rod 45 will then be pulled rearward
ly toy their limit and rotated in a counter-clock
wise direction as viewed from the right-hand side
of Fig. l0, until the projection 55 is moved into
alignment with the longitudinal slot 5l. Con
trol handle 42 is then pushed inwardly to move
projection 5l) along slot 5l and into the enlarged
portion 53 and the threads 44 screwed into the 20
corresponding threads in the rear end of the bar
screw threads in the rear end of the barrel after
rel, which when completed will bring projection
the clamping plug 4l has been screwed into place.
Passing through control handle 42 is the rod 45,
25 which has the upset non-circular portion 46 at its
outer end seated in the similarly shaped recess 41
50 into the position shown in Fig. 9, and the pen
is then ready for use.
in the control handle 42, so that rod 45 will move
with control handle 42. After the non-circular
upset portion 46 has been seated in recess 41, the
same is covered by securing the button 48 in the
shouldered portion 49, which closes this end of the
control handle and holds rod 45 in proper posi
tion. As seen in Figs. 9, 10 and 11, rod 45 extends
telescopically into the tubular member 40 and mis
formed on one side with the lateral projection 5U,
which when in alignment therewith may slide
tending tubular member 55, which is formed with
a spiral trackway 55, in which isspirally movable
longitudinally along slot 5| formed in one side of
tubular member 49. Near the outer end of tubular
member 4l] is a laterally extending slot 52, into
110 which projection 59 may be turned when in
1n the embodiment shown in Figs; 19 to 28, the 25"
plunger head 24 is provided with a rearwardly ex
the' projections 51, of which there can be any de
sired number (one or more). In this embodiment 30
the' screw 25 of the form shown in Fig. 1 is used
for securing the plunger head 24 to the tubular
member 55, and the rear end of the rubber bag 1
is secured to the rear' end of the barrel in a
manner similiar to that of the embodiment shown 35
in Figs. 9 to 18. The control handle 53 is, how-
ever, differently formed than those heretofore
described, and comprises the recessed portion 59,
in the rear en-d of which is formed the non-cir
cular opening 5U, into which is seated the upset 40
registry therewith by rotating rod 45. Near the
non-circular portion 5l of the rod 52. When this
forward end of tubular member 40 is the enlarged
portion 53, into which projection 50 may be turned
when in registry therewith by rotating rod 45.
45 The enlarged portion 53 is annular in shape and
of suiiîcient length to permit threads 44 to be un
upset portion 6| is seated in the similarly shaped
opening E@ in control handle 5S, the ñlling plug
63 is inserted into the opening 59 with a more or
less tight> ñt to hold these parts together.
In the form shown `in Figs. 19 to 28, the for
screwed from the rear end of the barrel before
ward end of the control handle 59 is reduced in
projection 50 strikes the normal diameter of tubu
lar member 40. Tubular member 40 extends
50 through the plunger head -2f4 and is riveted or up
set over the washer 25, which eliminates the
necessity of using the screw 26. The forward end
of tubular member 45, after the parts are as
diameter at B4, and slidably and rotatably nts
sembled and before introduction into'the barrel,
55 will be filled by a plug 54 of rubber, solder, or any
other suitable material, to prevent leakage of ink
. into the interior of tubular member 40.
In operation of the form shown in Figs. 9 to 18,
assuming the parts in the position shown in Fig. 9,
60 if desired to ñll the barrel with ink, thev control
handle 42 will be rotated to unscrew threads 44
from the rear end of the barrel I, which unscrew
ing movement will be permitted by reason of the
length of the enlarged portion 53 of tubular mem
ber 411 being longer than the length of the thread
ed portion 44. When threads 44 have been thus
disengaged from the complemental threads in the
rear end of the barrel, the lateral projection 59 of
rod 45 will be brought into registry with slot 5I
and control handle 42 and rod 45 pulled rear
wardly until projection 5l) comes in registry with
slot 52, at which time control handle 42 will be
rotated a slight distance in. a clockwise direction
as viewed from the right-hand end of Fig. 9, so as
to carry projection 50 into slot 52.
in the rear end of the barrel l, no threads being
provided vat this place in this embodiment.
In the embodiment now being described, when
it is desired to introduce ink into the barrel, and
assuming the parts to occupy the position shown
in Fig. 19, the control handle 58 will be rotated
in one direction (depending upon whether the
spiral trackway is right-hand or left-hand),
50
which by reason of the projection or projections
51 moving in the spiral trackway 55 will cause
the tubular member 55 and associated parts to
move to the left, as shown in Fig. 19, which will GO
carry the plunger head 24 to the left to the posi
tion shown in Fig. 20. The control handleV 58 may
now be pulled rearwardly (to the right as viewed
in Fig. 20), which will cause the plunger head 24
to move to the right to the position shown in Fig.
2l, and at the same time sucking ink into the bar
rel l. If it is desired to suck more ink into the
barrel than this one movement will accomplish,
the control handle 58 may be pushed back and
forth any desired number of times, which will 70
cause the plunger head 24 to reciprocate in the
barrel. When a sufficient amount of ink has
been thus introduced into the barrel, the control
handle 53 is moved into the position shown in
Fig. 21 to bring the parts within the barrel into 75
4
2,123,406
retracted position, after which rotation of the
control handle in the opposite direction from that
referred to above for projecting the plunger head
24 forwardly, will screw the projections 51 into
the tubular member 55, and thus return the parts
into the position shown in Fig. 19, and the pen is
then ready for use.
As shown in Figs. 26 and 27, the recessed por
tion 59 may be omitted from control handle 58
10 and the non-circular portion 6l of rod 62 be
seated in a similarly shaped opening in the outer
face of the control handle, and then covered
up by securing in the position shown the button
or disc I1. Also when the tubular member 55 is
15 secured to the plunger by burring or swaging over
the end of the tubular member as shown in Fig.
28, the open forward end of said member will be
filled up with the plug 54 as described in connec
tion with Figs. 9 to ll to prevent entry of ink into
_ the interior of the member.
If desired, the barrel may be made of trans
parent material so that the user can see the
amount of ink in the barrel and thus reñll the
same at any time desired. Also the other parts
25. may be made of any desirable materials suitable
for the purpose. It will thus be seen that I have
provided in a fountain pen a filling device of
the plunger type, in which leakage of ink from
the barrel is entirely prevented and the ink is
30 unable to find access to the mechanism by which
the plunger head is reciprocated. This results. in
a fountain pen which may be easily and quickly
filled with ink and will be of long life, with the
working parts out of contact with the ink.
Having now described my invention, I claim:
35
l. In a fountain pen, a barrel having an open
rear end and an internal shoulder spaced inward
ly from the open end, an elastic rubber bag having
at one end a laterally extending marginal flange,
a
40 clamping plug adapted to be firmly seated in the
open end of the barrel to tightly clamp the mar
ginal flange between the shoulder and the clamp
ing plug, a plunger head at one end of the rubber
bag, an elongated tubular member secured to
said head and extending into the bag, a control
45 handle movably associated with the rear end of
the barrel, a rod fastened to said control handle
to move therewith, said rod being telescopically
slidable in said tubular member, a lateral pro
jection on said rod, a longitudinal slot in the
50 tubular member adapted to slidably receive the
projection on the rod, an-d spaced apart lateral
openings in the tubular member into which said
projection may be rotated to permit the joint
length of the rod and tube to be increased to
enable reciprocation of the plunger when the pro
jection is in one of said lateral openings and hold
it against reciprocation when it is in the other
of said lateral openings.
2. In a fountain pen, a barrel having an open
60 rear end and an internal shoulder spaced in
wardly from the open end, an elastic rubber bag
having at one end a laterally extending marginal
flange, a clamping plug adapted to be firmly
seated in the open end of the barrel to tightly
clamp the marginal flange between the shoulder
and the clamping plug, a plunger head at one end
of the rubber bag, an elongated tubular member
secured to said head and extending into the bag,
a control handle rotatably mounted on said
clamping plug, a rod extended through said
clamping plug and fastened to said control handle
to move therewith, said rod being threaded
throughout a portion of its length, internal
threads in said tubular member with which the
75 threads on the rod engage to cause longitudinal
movement of the tubular member when they con
trolhandle and rod are rotated to enable the
overall joint length of the rod and tubular mem
ber to be increased or decreased as desired,
whereby when said joint length is increased the
plunger head may be moved back and forth to
suck ink into the barrel, and when said joint
length is decreased a certain amount the plunger
head may be held against longitudinal move
10
ment.
3. In a fountain pen, a barrel having an open
rear end and an internal shoulder spaced inward
ly from the open end, an` elastic rubber bag hav
ing at one end a laterally extending marginal
flange, a clamping plug adapted to be firmly
seated in the open end of the barrel to tightly
clamp the marginal flange between the shoulder
and the clamping plug, a piston head at one end
of the rubber bag, an elongated tubular member
secured to said head and extending into the bag,
a control handle movably associated with the
rear end of the barrel, a rod fastened to said con
trol handle to move therewith, said rod having a
lateral projection thereon, said tubular member
being formed with a spiral trackway to slidably "
receive said projection whereby upon rotation of
the control handle in oner direction the overall
length of the rod and tubular member will be
increased so that the piston head may be recip
rocated in the barrel to suck ink thereinto, and
when the control handle is rotated in the opposite
direction the piston head will be retracted to a
non-reciprocating position.
4. In a fountain pen, a barrel having its rear
end open, an internal shoulder adjacentv the rear .
end, internal threads formed in the open end of
the barrel adjacent said shoulder, an elastic rub
ber bag in said barrel and having a laterally ex
tending marginal flange, a threaded clamping
plug adapted to clamp said marginal ñange be
tween said shoulder and said plug, a piston head
secured to said bag at its opposite end, an elon
gated member secured to the piston head and ex
tending into the bag, a control handle rotatably
associated with said clamping plug and movable ¿
toward and away therefrom, an elongated mem
ber secured to the control handle and slidably
mounted in said clamping plug, said last men
tioned elongated member extending' into the rub
ber bag and having engagement therein with the
first mentioned elongated member so that the
overall length of the two elongated members may
be increased or decreased upon manipulation of
the control handle, said rubber bag preventing
access of ink to the interengaging portions of the
elongated members but permitting reciprocation
of the piston head in- the barrel.
5. In a fountain pen, a barrel, a filling device
of the piston type comprising a piston head slid
ably engaging the inner face of the barrel to draw Gi)
ink thereinto by suction, and parts for causing re
ciprocation of the piston head, said parts having
a control handle and a pair of interengaging
members one being carried by the control handle
to move therewith and the other being secured to
the piston head to cause> movement thereof, said
interengaging members being formed to be
lengthened or shortened as a whole upon move
ment of one with relation to the other, an elastic
rubber bag sealed to the rear end of the barrel
and extending a distance into the barrel, said
bag being stretched as the piston moves forward,
a shoulder on the said interengaging member that
is secured to the piston head, said shoulder being
adjacent the piston head, and a button member 75
2,123,406
abutting said shoulder, the end of the bag being
ñrmly clamped between said button member and
the rear face of the piston head with the piston
head outside of and in front of the bag, the rub
ber bag sealing said interengaging members from
contact with ink.
6. In a fountain pen, a barrel-like body adapted
to contain ink and open at one end, an elongated
bag of liquid-proof elastic material having its
10 mouth provided with a radially Idisposed marginal
anchor viiange, means for anchoring said flange
at a position adjacent to the open end of said
body and in such manner that the bag' extends
its full normal length into the body while in
15 retracted condition, a control handle movably
supported contiguously to the open end of the
body, a piston of approximately the same diam
eter as the internal diameter of the body and
movable therein, an actuator rod secured to said
20 handle and extended longitudinally into said bag
through the mouth thereof, a longitudinally dis~
posed extension member located Within the bag
and telescoping with the actuator rod and hav
ing its outer end extended through the closed end
25 of the bag and connected with said piston, and
means cooperating with said piston for securing
the closed end of the bag to said extension mem
ber in such manner as to move therewith, said
actuator rod and said extension member having
30 complemental inter-engageable portions so ar
ranged as to eifect longitudinal movements of said
extension member in such manner as to move said
piston and to simultaneously stretch or collapse
said bag.
35
Y
7. In a fountain pen, a barrel-like body adapted
v to contain ink and open at one end, said barrel
having an internal annular shoulder contiguous to
said open end, an elongated bag of liquid~proof
elastic material having its mouth provided- with
40 a radially disposed marginal ñange, means en
gaging said iiange -and cooperating With said
shoulder to anchor said ñanged portion of said
bag in such manner that the bag extends its full
normal length into said body while in collapsed
condition, a control handle engaging the open
end of the body and free for rotative and axial
movements with respect to the latter, a piston of
approximately the same diameter as the internal
diameter of the body and movable therein, an
actuator rod secured to said handle and extended
longitudinally into said bag through the mouth
5
ing said flange at a ñxed position adjacent to the
open end of said body and in such manner that
the bag extends its full normal length into the
body while in collapsed condition, a control han
dle engaging the open end of the body and free
for rotative and axial movements with respect to
the latter, a piston of approximately the same
diameter as the internal diameter of the body `
and movable therein, an actuator rod secured to
said handle and extended longitudinally into said 10
bag through the mouth thereof, an extension
member telescoping with said actuator rod and
axially movable with respect thereto, said exten
sion member located within the bag and having
its outer end provided with a reduced portion ex
tended through the closed end of the bag and
also through said piston, means for securing the
piston in fixed relation with respect to said re~
duced portion of the extension member, and
means also carried by the reduced portion of the 20
extension member for clamping the closed end of
said bag against said piston in such manner that
said closed end is movable with the piston, said
actuator member and said extension mem
ber having complemental inter-engaged screw
threaded portions so arranged as to effect relative
longitudinal movements thereof by means of
movements applied to said handle, and move~
ments of said extension member will impart cor
responding movements to the piston and will 30
simultaneously stretch or collapse said bag.
9. In a fountain pen, a barrel-like body adapted
to contain ink and open at one end, said 'body
having an internal annular shoulder contiguous
to said open end, an elongated bag of liquid-proof
elastic material having its mouth provided with a
radially disposed marginal anchor liange, washers
gripping said flange and resting against said
shoulder, an anchor disk cooperating with said
shoulder to secure said ñange and said washers in
normally fixed position, and in such manner that 40
the bag extends its full normal length into» said
body while in collapsed condition, a control han~
dle having a reduced portion extended into the
open end of said body, said handle being free
for rotative and axial movements with respect
to the body, a piston movable within said body,
and an actuator rod secured to said handle and
extended longitudinally into said bag through
the mouth thereof, said rod having a threaded
portion at its outer end, a tubular extension 50
thereof, an extension »member also located with~ 'ì member also located within the bag and telescop
in said bag and telescoping with the actuator ing with said actuator rod, said extension having
rod and axially movable with respect thereto, said threaded portions complemental to the threads
extension member having its outer end extended upon said actuator rod, said actuator rod and said
through the closed end of the bag and connected extension member being axially movable with re»
with said piston, and means for clamping the speci; to each other in such manner that the ex~
closed end of the bag to said piston in such man
tension member is adjustable toward and from
ner as to move therewith, said actuator rod and said shoulder, said extension member having a
said extension member having complemental reduced outer end,‘extended through the closed
inter-engaged screw threaded portions so ar
end of said bag, a piston movable within said body 60
ranged as to eii’ect relative longitudinal movement and secured to said reduced end, and means for
thereof by means of rotative movements applied clamping the closed end of said bag against the
to said handle.
inner face of said piston in such manner that
8. In a fountain pen, a barrel-like body movement of the extension member will be im
adapted to contain ink and open at one end, an parted to the piston and will stretch and collapse
elongated bag of liquid-proof elastic material
having its mouth provided with a, radially dis
posed marginal anchor flange, means for anchor
Vsaid bag longitudinally within the barrel.
FRANK C. DELI.
Документ
Категория
Без категории
Просмотров
0
Размер файла
1 216 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа