US1518821A - Fountain pen - Google Patents

Description

Dec. 9, 1924- 1,518,8214

H. Ross FOUNTAIN PEN Filed Oct. 13. 1922 f' z .f

f l v 'y YInge/#or Patented Dec. 9, 1924.

UNITED STATES HARRY ROSS, OF LONDON, ENGLAND.

FOUNTATN rEN.

Application filed October 13, 1922. Serial No. 594,306.

"To all who/m 'it may concer/rb:

Be it known that I` HARRY Ross, a subject of the King of England, residing at 50-51, Pall Mall, London, Kingdom of England, have invented certain new and useful Improvements in or Relating to Fountain Pens, of which the following is a specification.

This invention relates to improvements in self filling fountain pens of the kind having a collapsible resilient ink reservoir arranged within the barrel of the pen and adapted to be compressed by a bar actuated by a pivoted lever in order that ink may be drawn into the reservoir when the pressure thereon is released.

In the present-day self-filling fountain pens it has been found that the reservoir can only be partially filled with ink; therefore, the pen has to be replenished with ink at frequent intervals. It is the object of this invention to provide improved'means for actuating the reservoir collapsing bar in such a manner that the reservoir can be substantially or completely filled with ink when the refilling operation is performed.

A further object is to provide means which so actuate the reservoir collapsing bar that the air is expelled from the rear portion of the reservoir before the front portion thereof.

With these and other obiects in view the invention is characterized in that the rear portion of the collapsible ink reservoir is collapsed before the front portion thereof.

The invention further consists in actuating the reservoir collapsing bar through the medium of a plurality of connected levers or links which are adapted to be operated by a lever or other suitable means arranged exteriorly of the pen reservoir.

The invention will now be described with reference to the accompanying drawings, in which Figure 1 is a longitudinal sectional elevation of one form of pen constructed in accordance with this invention showing the collapsing bar when in its depressed position in full lines and when in its normal position by dotted lines;

Figure 2 is a cross section taken on the line 2--2 of Figure l;

Figure 3 is a similar view to Figure 1 showing the collapsing bar partly depressed;

Figure 4L is a longitudinal sectional elevation of apart of a self filling fountain pen showing a modification of the invention, and

Figure 5 is an inverted plan of the operating lever shown in Figure 4t and the casing for the levers and links.

As shown more particularly in Figures l to 3, lthe body a of the pen which is adapted to contain a flexible bag reservoir b in the usual manner is longitudinally slotted at c for the reception of a plurality of transversely arranged pivot pins d. On eachI of these pivot pins Z is pivotally mounted a lever, link or the like e, f, g. The lever e is formed with an outward extension or handle 7L whereby it may be actuated from the exterior of the pen. This actuating lever it is adapted to lie substantially iush with the body r of the pen when in its inoperative position. This operating lever h is preferably shaped at its outer end to provide a handle or grip i whereby it may be conveniently moved to its operative position. This handle orv grip portion t' of the lever It is adapted to lie in a recess or the like j formed in the barrel a of the pen. To the inner end of the operating lever e and the lever, or links f, g is pivoted in any suitable manner a connecting bar or the like lc. The arrangement is such that the parts are adapted to act substantially as a parallel rule movement. The ends of the levers or the like e, f and (I are, upon the operation of the operating lever 7L, adapted to act upon a reservoir collapsing bar Z ywhich latter' extends preferably the full length of the bag reservoir a and is of curved shape in cross section. The rear lever or link g is enlarged or formed with an extension m which is adapted when the device is operated to engage with the reservoir collapsing bar Z before the other levers or links. When the operating lever 7L is moved to a substantiallv vertical position, the reservoir collapsing bar l presses on the bag Z2 to collapse it for the refilling operation in the usual manner. but during the collapsing of the bag b, the collapsing bar Z is tilted so that the rear end of the bag will be collapsed befo-re the front end of the bag b which is connected in the usual manner to the nib carrier n in which is mounted the feed bar o adapted to feed the nib 7). Thus the air in the bag Z) will be expelled in the direction from the rear end of the bag and the bag will collapse in such a manner that no air locks will occur. When the operating. lever .1, is moved back to its. initial positlon during the refilling of the pen, the

ink will be drawn into the reservoir Z) and Will completely fill the same.

In a slightly modilied construction, as shown more particularly in Figures 4 and 5, the pivot pins dof the levers or links e, f and g which may be constructed of Uc-shaped 1naterial are mounted in a box like device g, preferably constructed 'ofme-tal. .This box like device g is of substantially U-shafpe inf cross section to provide a pair of longitudi- 'nal flanges 7' andan i'nteiunediate portion 's which is adapted; to confliorm AtoV the? body a of the pen. This intermediate .portion .s is extended aty each end to `lirovide' ears t Which are adapted `to be connected to the body ot the Lpen inany'conve-nient manner, lpreferablyV by screws u passing' through 'holes 1n:

the said `ears 't' and screwinginto the bot'ly t of thepen which latter 1S constructed of vulcanitey or other suitable material. In this "Case the intermediate lever 7L, is' adapted to the reservoir collazpfsi'ltg. bar during' its movement Aen the bag, such as 'an extension 'or hump o foi-med -orprovi'ded on the `connecting bar or the like. Furtlier7V any number of' thecollapsing bar or only twolevers may be employed'. n f

Thus it Will be seen that I have pro-vided operating means for an ink reservoir which are extremely neat and Simp-1e in construction and which Will enable the reservoir to be more completely filled with ink.

VhatI claim is:

1. A self-filling fountain pen, having a collapsible ink reservoir, a bar for ycom.- pressingthe same, and' a plurality of connected; lever-s for ope-rating on the bar, one of said 2levers lhaving aneXtendedl reefeirdtocause said lever to engage and. operate the bar in advance of the bar engagement ot the remaining levers. Y v

2. A self-filling fountain pen, having a: collapsible inl; reservoir, a bar for operating said reservoir, a support secured in 'slot formedinthe penbarre'l overlying` said barT said support having depending spaced side wvalls, and an outer Wall Ato complete the end extended to engage and operate. said bar' in advance of the bar engagementof the 73emain-mg levers, and me anstor simultaneously' operati-ng said levers.

I'n testimony whereof I have hereunto signed my name.

Hann-Y Ross.

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