US1586541A - Fountain pen - Google Patents

Description

June l 19216.

J. 3.y WAHL FOUNTAIN PEN Fiied my 2v. .1922

Rye

Patented June 1, 1926.

:narran JOHN C. WAHL, or caw-aco, ILLINOIS;

A 41,536,541 ,l tartufi orties. ,f

Asistencia To aus want eoMPANfY, for' WILMINGTON, DELAWARE, .a consola-Arron ger irritawana'.`

roumain man.

liplication led May 42*?,

My invention relates tofountain lpens, land more particularly to `a Afountain pen, vthe barrel and cap of which are made of metall.

'lhe `nature of the intention resides .in the peculiar construction of the cap adapted to enclose the pen section when not in use; "It has been applieants -experience that the fre` quent screwing of the cap on and o fthebarrel causes that portion ofthe pen ybarrel iinmediately below the threads, which are adapted to receive the threads of the icap, to become scratched .'or--.o`therwisev lnraared dine to the tight fit'between the pen -harrel and the beauty is only the secondary iohject, reen# sequently the use ofk afountain pen will occasion the unscrewing of the cap from the pen barrel, and inasmuch' as the cap fits snugly about that end which it encloses when not in use, the friction between thev open end of the cap and that part of the barrel with which it comes in contact, will become worn and dull and leave eircuInferentiallyl extendi ing marks around that portion of the barrel.

Applicants invention is directed to eliminate this defect, without in any manner, changing the outward appearance of the barrel which issimple of construction from the viewpoint of manufacture..r

The invention consists 1n certain details in the construction, arrangement and combi? nation of various parts of the device whereby the object-s contemplated are attained, as hereinafter more fully set forth, pointed out in the claims, and illustrated in the accompanying` drawings in which Fig'. 1 is a .view .of the barrel in elevation and 4partlyin section exemplifying my invention, and.

Fig. 2 is an enlarged longitudinal sectional view of my improved cap.

In the drawings the numeral 10 indicates the metal barrel of a fountain pen deflected inwardly at itsforward end to receive the pen section 11 in which is held the pen point ieee. sria'i No. 5645070.

12. These parts may be of any suitable or usual construction.' The extreme forward end of the pen barrel is threaded ias I13, and a main or "outer cap 1a anade of -v-'e'r-y thin lneta'l is provided; Hthin the main cap 14 is a supplemental cap 15, beinfg con-l stiluctedin two sections, the rear 'sectio'n 1G being cliniensioned to snugly tit-within `the main cap 1K1; Thel forward section 17 is threaded interionly near its open end, said threads being adapted to mesi-1 with 'the threads on 'the barrel #10. f :Intermediary .the ends of `the .section 17, a'shoulder 18 is formed to act as a seat for the rear section 16. Section A17 :at this i poi-nt extends up wardly within ft-he section 16 terminating at its vrear Lend in Fan enlarged flanged poiitio'n 19, the purpose 'of which avillffbe described hereinafter. rlh'e thickness of fthe Section 17 between the shoulder '18 andlianged .portion 19 together with the thickness of fthe section 16 is equivalent to the thickness of the see- :tion 17 below the shoulder 1S.V Consequently the joining ofthese Vtwo sections together leaves a plain circumferential -su-rlfac'e.`

rlhe supplei'nentalc'ap 15, consisting "of the two sections 1'6 and 17, is placed within they main cap 14 and permanently held therein by soldering` or any other desired means, the open end of said supplemental cap terminating a distance short of the open end of the main cap 14C` as is illustrated in Fig. 1.

'The section `17 is formed of softmetal,

preferablyaluminum or copper, and wheny the supplemental cap is positioned within the main cap 14 and it is desired toenclose the pen section with the cap,vthe threads in Vthe aluminum section 17 will mesh with the.

threads 13 on the barrel 10, and the extreme Open end of the sect-ion 17k will cont-act with the contiguous surface of said-barrel 10, and due to the fact that the metal used in section 17 is softer than the metal generally DiS used in the construction of all metal rpen barrels, it will not scratch the barrel or otherwise mar it. The main cap 14 which of necessity will be constructed of the same metal from which the barrel 10 is made, will not directly come incontact withthe barrel 10, -thus eliminating any possibility of The flange 19 formed at the rear endof the section 17, together with the section 16 form a housing member for the pen nib when the cap 1s placed upon the pen, thus scratching the outer surface of the barrel 10.

the placing of the main cap over the pen causes the supplemental cap to enclose the pen point 12, and the screwingl ot said supplemental cap on the screw threaded portion 13 of the barrel will bring the end of' the pen section ll hard against the flanged portion 19, thereby making` an absolutely tight joint and relieving the possibility of any ink escaping into the main cap if by accident the pen should be turned bottom side up.

I wish it understood that various changes in the construction and arrangement of the parts may be resorted to without departing from the spirito the invention which is expressed in the appended claims.

`While I have described my invention which resides in the supplemental cap as containing two sections, it is understood thatthe supplemental cap 15 can be of one piece drawn from any of the softer metals.

Having; described my invention, what I claim as new and desire to secure by Letters Patent is l. A metal cap -for fountain pens comprising an outer metal cap portion. and a supplemental metal cap portion within the outer cap portion and :tormed of two scctions, the section ot the supplemental cap which is adapted to engage. a pen barrel being formed of a relatively nonahrasye metal.

2. A metal cap tor fountain pens comprising an outer metal cap portion, a sup plemental metal cap portion formed oic two sections one of which lits snugly within the outer cap portion, the other section being positioned to engage the barrel ot a tountain pen, said last mentioned section being formed of a relatively nonabrasivc metal and having' a portion project-ing: into the iirst mentioned supplemental cap section.

3. A metal cap for fountain pens comprising' an outer metal cap portion, a sup plemental metal cap portion formed ot two sections one ot which iits snugly within the outer cap portion, the other section being positioned to engage the barrel of a fountain pen, said last mentioned section being formed of a relatively nonabrasive metal and haring a portion projecting' into the first mentioned supplemental cap section, the combined thickness ot the walls of the two supplemental cap sections where they overlap being' approximately the same as the thickness of that portion of the wall of the second sect-ion which protrudes ltrom the first section.-

4r. A metal cap for fountain pens comprisinf; an outer metal cap portion, a supple` mental metal cap portion 'formed ot' two sections one ot which nts snugly within the outer cap portion, the other section being' positioned to engage. the barrel of a tountain pen, said last mentioned section being;- formed of a relatively nonabrasive metal and having' a reduced portion fitting within the first mentioned section and provided with a shoulder coinplemental to the open end of the first mentioned section.

In witness whereof, I have hereunto sul scribed my name.

JOHN C. IVAI-'l L.

Images