US1476107A

US1476107A - Fountain pen

Info

Publication number: US1476107A
Application number: US615676A
Authority: US
Inventors: Rudderham Thomas Edward
Original assignee: Individual
Current assignee: Individual
Priority date: 1922-02-08
Filing date: 1923-01-29
Publication date: 1923-12-04
Anticipated expiration: 1940-12-04

Description

I GI

Patei'ilzed 4, 1923. I

PATENT ion-ice].

THOMAS BUDDERHAM, 0F SII'IDBUBY, ENG-LAND.

FOUNTAIN PEN.

Application filed January 29, 1923. Serial No; 615,676.

To all whom it"may concern? Be it known that I, THOMAS EDWARD RUD- DERHAM, a subject of the King of England, residing at Sudbury, Su'flolk, n land,'have invented certain new and usefu Improvements in Fountain Pens, of which the following is a specification.

This invention is for improvements in or relating to ,fountain pens and has for its object to provide such a pen with a cap of improved construction such that the writingnib can be exposed for use without removing the cap. v

It has heretofore been proposed to provide a fountain pen with a longitudinally split, spring-controlled cap arranged to open and close when slid longitudinally on the end' of the pen and to allow the nib to protrude when the cap was slid back on the pen. It has also been proposed to provide a fountain pen whereof the body portion or reservoir had a cylindrical end part into which the nib could be retracted, a sleeve having a closure member on one end being mounted to rotate on, but not to slide lengthwise of, the body portion, the arrangement be ng such that ,when the nib was retracted the sleeve could be rotated to cause the closure member to close and open the said end part of the body portion.-

According to this invention there is provided in a fountain pen, the combination with the body portion or reservoir of the pen, of a cap mounted to slide lengthwise on one end of the body portion and having in its free end a hole to permit the projection therethrough of the writing-nib when the cap is slid back on the pen and means operative with the sliding movement of the cap for covering the said hole when the cap is advanced. Preferably, the cap comprises an outer and an inner shell rotatable relatively to one another, both slidable endwise on the pen and both having in their ends an orifice to permit the writing-nib to project therethrough, and means operatively connected with the pen which is such that one shell must rotate relatively to the other as the gp is moved in one direction or the other. In the accompanying drawings, which illustrate one method of carrying out this invention:

Figure 1 is alongitudinal section through the cap-end of the pen with the cap in position for covering the writing-nib.

Figure 2 is a longitudinal section through the cap-end of the pen with the capin the position for exposing the writing-nib, and Figure 3 is an external view of the inner shell of the cap.

Like reference letters indicate likeparts throughout the drawings.

The pen A may be of any convenient construction, but the writing-nib -A is car'- ried eccentrically at the end instead of being situated in the usual central position.

Sliding over the end of the pen is a cap oomprisingBtwo shells'B and O res ectively. The shell has in it a cam-slot which is spiral at that end furthest from theclosed end of the cap and straight at that portion which is near the closed end. A pin 1) is fixed in the pen body andengages this cam-slot B and the spiral portion is arranged to cause the shell to rotate through 180 by reason of engagement with the pin D, when the shell is moved endwise.

In the inner face of the shell C is a straight longitudinal channel C and the pin D projects through the-cam-slot in the shell B into this channel 0 v The covering-ends of the two shells each have in them a hole B and C respectively which are large enough to permit the writing-nib A to project through. The hole C is opposite the writing-nib, but the hole 13 is out of register with the hole C when the parts are in the covering position shown in Figure 1. v

A collar E is screwed into the end of the outer shell C to hold this normally upon the'pen.

It will be seen that with the composite cap arranged as described above endwise movement of the cap in the direction to uncover the nib will cause the inner shell B to. rotate so that the two holes B C- are in register by the time the end of the cap reaches the point occupied by the writing-nib. The two shells then continue to slide without relative rotation so that the nib can be made to project as shown in Figure 2. A reverse movement efl'ects the covering of the nib and the bringing of the holes B C again out of register.

The parts are easily assembled or separated for examination or repair as the collar E, in conjunction with the pin D are .the onl parts which hold the cap on the pen. y removing the collar E the shell C can be removed and then by removing the pinD, which conveniently takes the form of a grub-screw, the shell B can be removed.

15 Obviously, the details of the invention can be varied without departing from the spirit of the invention, and the particular construction described is only set forth by way of example and not by way of limitation.

What I claim as my invention and desire to secure by Letters Patent is:

1. In a fountain pen, the combination with the. body portion of the pen, and a writing nib carried at one end thereof, of a cap for the nib.comprising two parts whereof one is rotatable relatively to the other about the longitudinal axis of the pen, which cap' is slidable endwise on'said body portion and has in one of said parts an orifice to permit the nib toproject through it when-the cap it at the limit of its movement in one direction, the other of said parts constituting a closure member for said orifice, and means operative with the sliding movement of the cap and arranged to rotate one of said parts in relation to the other to close and open the orifice when the cap is moved endwise in either direction on said body. portion, substantially as described.

2. In a fountain pen, the combination with 'thebody portion of the pen, and a writing-nib carried eccentrically atone end thereof, of a cap for the nib comprising an outer shell and an inner shell rotatable relatively to one another, which cap is slidable endwise at one end on the, said body portion and both said shells have in their other end an eccentric orifice to permit the nib to pro ect therethrough when the cap is at.

the cap is moved endwise in either direc tion on said body portion, substantially is described.

shell and slidable endwise on the body portion, which shells have in'their end remote from the bodyportion each an eccentric orifice to ermit the nib to roject there through w en the cap is at t e limit of its movement in one-direction, and means operatively connecting said cap with said body.

portion, which means are adapted to rotate close the orifices as the inner shell moves .the inner shell in relation to the outer to endwise during at least part of such endthereof, of a cap for the nib comprising an outer shell non-rotatable on but slidable endwise on the nib end of the body portion, and an inner shell rotatable in the outer shell and slidable endwise on said body portion,

which shells have in their ends directed away from the body portion each an eccentric orifice, and a pin'mounted on the said body portion, said inner shell having a longitudinally disposed cam-slotinto which said pin extends, said slot being so shaped as to bring the orifice in the one shell into register with the orifice in the other at the limit of the movement of the cap in the one direction and out of register at the limit of the'movement of the cap in the other direction, substantially as described.

5..In a fountain pen, the combination with the body portion of the pen, and a writing-nib carried eccentrically at one end thereof, of a cap for the nib comprising an outer shell non-rotatable on but slidable endwise on the nib end of the body portion, and an inner shell rotatable in the outer shell and slidable endwise on said body portion, which shells have in their ends directed away from the body portion each an eccentric orifice, said inner shell having a longitudinally disposed cam-slot and said outer shell having .a straight longitudinal guideway, and a pin mounted on the said body portion and extending through said slot into engagement with said guideway, said slot being so shaped as to bring the orifice in the one shell into register wlth the orifice in the other at the limit of the movement of the cap in the direction towards the body portion and out of register at the limit of the movement of the cap in the other direction, substantially as described.

6. In a fountain pen, the combination with the body portion of the pen, and a writing-nib carried eccentrically at one end thereof, of a cap for the nib comprising. an outer shell non-rotatable on but slidable'endwise on the nib end of the bodyportion, andan inner shell rotatable in the outer shell and slidable endwise on said body. portion, which shells have in their ends directed away from the body sgortion each shell into I with the orifice in the an eccentric orifice, said inner ell having a other at the u 't of the movement of the 10 longitudinally disposed cam-slot, and .said cap in the direction towardsthe body porouter shell having in its inner face a straight tion and out of register at the limit of" the.

5 longitudinal-channel, and a. pin mounted on movement of the cap in the other direction,

' sai body portion and extending through substantially as described.

said s'lotinto said channel, said slot being In testimony whereofIaflix my signature. so. shaped as'to bring the orifice in the one HIGHS EDWARD RUDDERHAI.