US12301A

US12301A - Improved fountain-pen

Info

Publication number: US12301A
Authority: US
Publication date: 1855-01-23
Anticipated expiration: 1872-01-23

Description

N. A. PRINCE.

FOUNTAIN PEN.

PATENTBD JAN. 2s, 1855.

. turned toward the eye.

part of the pen turned toward the eye. represent-s a View of the same with the under UNITED STATES;

PATENT OFFICE.-

N EWELL A. vPRINCE, OF BROOKLYN, NEW YORK.

i |MPRovn FOUNTAIN-PEN' To all whom zit 11i/(Ly concern:

Be, it known that- I, NEwELL-A. PRINCE, of thecityofrooklyn,inthecountyofKings,aud

of the State ot' New York, have invented new' and luseful Improvementsin Fountain-Pens; and I do' hereby declare. that the following is a full and exact description thereof, reference being had to the accompanying| drawings, which form a part of this specification, and to the letters of reference marked thereon, in

y which drawings- Figure 1 represents an external viewof my improved fountainpen as it appears with thel cap on, when it is not charged and not in use'.

Fig. 2 represents a groundview or side eleration of the same with the pen placed over the feeding-tube. Fig. 3 represents a View of the' same with thej upper part of the pen Fig. 4 represents a view of the same with the under part of the pen turned toward the eye. Fig-..5 represents a vertical longitudinal section of my i mproved fountain-pen. ,Fig 9 represents a cross-section of the main reservoir-tube. Fig. 6 represents a section al View of the same,Wit-h the piston-rod drawn hack. Fig. 7 represents a sectional view of the feeding-tube with an elastic spring inxed therein. sents a cross-section of -the feeding-tube and the spring. Fig. l0 represents a groundv view of my improved fountain-pen,with the/fpen placed under the feeding-tube. Fig. 11l represents aviewof the Same with the upper Fig.12

part of the pen turned toward' the eye. VFig'. 13 represents a vertical longitudinal section of the same.v Fig. 1.4.' represents` a crolssseetion of the main reservoir-tube. Fig. 15 represents my improved fountainpen as ready for'use.

The main reservoirtube,-as represented by c v in Fig. 5; is made of any convenient length, from four to five inches, or more, with a. diameter of 'about a quarter ot' 'lan inch. The inside surface is niade as smooth as possible.

The pisto'n-rod', as represented in Fig. 5 by (l (1 which is used incharging the main res-- ervir-tnbe with ink, is made about the same length as the main reservoiitube, the greater part of it being somewhat less than an eighth of an inch in diameter.` The lower end of Fig. 8 repre-` the piston-rod. is made with a head, as seen-,in

Fig. 5 `at letters d x, which head forthe most part is of the 'saine diameter as the bore of the main reservoir-tube, or as nearly so as possible, regard being had toA an easy movement of the same in the main reservoir-tube. The said head issmoothd and palish'ed. A part of this head is' madeof a conical shape, as seen at in Fig. 5, so as to tit tightly or ink'and air tight when drawn back into the hole in the screw-cap, which is represented by a, vas seen in Fig. 6 at The said screwcap is made about three-quarters of an inch long, '.(it can be an inch or more, if necessary) andis attached closely-that is, ink and air tightto the .upper end ofthe main reservoir- -tube, as represented by a iny Figs. 5 and 6. .A

hole -is made longitudinally i'n the said screwcapso large that the piston-rod may be easily moved up and, down therein; but the lower part of this hole -is made of a conical shape, as represented in Fig. 5, at lor near v and a, so thaithe conicall-y-shaped part of the pis- Aton-rod before described may t closelyinto litwhen drawnuback, as seen in Fig.- 6, .thus 'preventing the ink from' escaping from or through the hole .inthe said screw-cap and the air from entering by the' same afterlthe main reservoir-tube has been charged. The said screw cap,y after the piston-rod is passed through the hole therein and the head of the piston-rod inserted in'the main reservoir-tube, must be screwedon the upper end'otvthe main reservoir-tube so closely that no ink'canpassf outnor air pass in over the threadv of the 'screw of the said screw-cap. The upper ,end

of the piston-rod yis furnished with4 av small screw-knob, (represented by a in Fig. 5,) which isl screwed o'nto it after it yis' passed through the hole-.in the'screwcap.

l, In the lower end of the main reservoirtubeI insert asmall feeding-tube, (represented by b in the sectional drawing, Fig. 5.) lThis tube b I make about an inch long, (it'canlbe made en inch, and a qnarterlongif desired,) with the bore thereof nearly an eighth ofan inch yin diameter, passing quite through it, they said bore being larger at the upperiend of the tube than below, as seen at or near c in Fig. 5.

Near the lower end of the feeding-tube b, Fig. 5, I make an orifice perpendicularto the bore of the said tube, as seen in the sectional drawings, Fig. 7, at the point m, ltromwhich oritieej? the ink issues to feed the pen. The said orifice shoultfbe sufficiently large to'give a. free supply of ink. In thefeeding-tube b, Fig. 5 I infix a small thin, dat, and elasticf'spring. (Represented by c.) The upper parofthissprin'g is made so wide for about a quarter of an inchin length that it may impingebn; the sides 0f thetube, so that by pressing,` it in it is' made fast in its position, as seeif Fig'. 7 at c.' There is suicient space left for the ink to pass down the feeding-tube'above and below the spi-ing, as seen in the tube b in Fig. 5. The -rest part of the` spring i'snmde narrower than the bore of the feeding-tube, as seen in Fig. 7, so that` vitcan be made to vibrate readily in the feed,

ing-tube by the action of the pen, as I shall hereinaftershow. 'lhe'loworcndof-the spring' is slightly curved or bent at nearly wright ',angle, so that the' end of it projects through the'oriti'ce 'na-as Vseen in Fig.l 7 andcomes'in contact with the. under part of the pen, as

seen inthe tube b in Fig. 45, the blueline marked c representing the spring.

When the p'en is not in use, the spring is kept pressed down somewhat bythe pen; but 'as soon as the pointof the pen is raised upward by writing the end` of the'. spring fol- -lows it, so that the constant motion of the" pen in writing aids in supplyin'g'it with ink, the ink. being-drawnhp vor attracted bythe spring, andl kept thus in contact with th'e pen.

The vibration of, the spring in the feedingtube' is .of much importance in aiding' the iiowa-ge of the ink1 The end of the springl should' always be inl bog'taet with 'the pen .when the pen is p aced above the feedingtube.l 'After the spring isinixed in the feed- A. J.ing-tube in the nianner described, the feedingt'l'lbe, containing thespring, its inserted intol the lower end of the'main reservoir-tube.

' 'j" 1`he feeding-tube (see'li' in Figs? and is iliade at they upper-end with a diameter large' distance of abouta quarter 'of' 'enough fof the.

suine inA e it t tightly in the main reservoi'rgtube;` A small portion of the lower part'of this'is vflattened or filed oi to makeA vroom for the upper endof the pen, as seen'at ,or near 'u in' Fig. .5... -The rest of the external part o f the feeding-tube lyi'ng under-the pen 1s also flattened, as seen inthe tube bin Fig. 5. The feeding-tube for about-three-quarters of an`inch from its. lower endis/niade smaller than the bore of the4 main reservoirftube, so that when the feedingtube is inserted in the main reservoir-tube' for about half of .an inch there is ,formed an under recess, as seen atr t' in'Fig.15, which answers in part-for a receptacle for the ink, wh'ich-.zl'efiows'when thef point of the pen 'is turned 4upward, thus pre-. venting? the'soiling of ,the fingers with ink.

'lhe pen m\1st'be.iitte d tightlyjinto its socket, whichsocket is a .parta-ofA v the under-reess, the sides of 'theupper'part' of it impingng upon-the inside of' the'loweren'd of the main reservoir-tube. The penmust lset closely tothe lowerl end' of the, Medine-tube at, the ori age of 'the in k.

Tice, where the ink issues'to feed it." 'The point of the pen should extend'down over .and beyond the feeding-tube a quart-er oflan inch', more or less, accordingr asthe 'pen is sti or flexible, or so, that the pen shall be readily supplied with ink, and so that the end 'of the feeding-tube shall not touch the paper i writing. I l l InFg. 13 the spring is represented by'c, and isf inifixed in thefeeding-tube b in `the same .'manner as represented in Figs. 7 and 5 and before described. The spring is similar tof that represented in Fig. 5, but is placed above the p en instead olnnder it, and is 'modified somewhat at the lower ends, A

slnall portiouof the spring` extends' through vaffanni'l'orlice in the feeding-tube b, 131i f1.8

pei-pendiculaiflytf'osr nearly so,.to the ack part of th'c pen, asseen ator near Z,- Fig. 13, l

being madcof a somewhat conical form, so-

that it may close up the orilice'in the feed- .ingftube, or nearly close it, when the pen is not n'use. The pen when inv use strikes against the conical point-of the spring, t-hus vkeeping it in motion and aidingthe How- '.lhe oricevof the feeding tube is m'ade smaller whenthe pen is placed under4 the 4feeding-tube than when it is placed over it, as is seen by comparing Fig.

13 andFigs. 7 and 5 with reference to th'e.

orifice. y i

To charge the fountai'ntube,th`e piston-rod is first-pushed in, (and in 'doing-this it must betaken by the thumb and foreiinge'r just above the screw-cap.) IThe'pen is then'immersed in ink tothe'depth ofhalt an nch or more, or so thatthe orifice of the feeding-- tube vshall be below the. surface 'of 'the ink.

The 'pistonrod is' Uien-quickly drawn ontw ward till the concally-shaped part of it fsl closely or ink and ai'r tight in its conicalseat. in the screw-cap.' The pen is then thoroughly vwipedfso that the nkm'ay no`t drop upon the'paper, and is ready for use, as it is represented by Fig. 15. l A cap for the purpo e of keeping the ink from drying up, aswel as for protecting the pen when not vin use; is placed :or drawn over the p'en. It should always hej-,put 'on 'when one stops writing. .Thiscap ,'as'seen in Fig.,

1, islmade' tot' closely to t e lowerend of .the main. vreserroir-tube', canning-'home 'to a shoulder or small elevation.

The material I use in-constructi'ng the tubes, screws, cap, and spring of .my improved fountain-pen is Goodyears patented hard rubber.

'.I h'ave as yet'seen nothing preferable to it.4

I claim is my invention orimprovementand desire to 'obtain Letters Patent therefor .1'. The elastic spring-infixediuthe feeding tube, vwhether the said springbe placed under or. above the pen, it being so placed that it is made to ylbrate by the actionof the pen in writing,substantially the sanie as described y in the foregoiugspecification and the accompanying drawings.,4

" Af2; The under-recess formed by inserting the feeding-tube in the lcwcr' end of the ma'n reservoir-tube, the said u Y er recess actingas a receptacle of the' ink, whichfreows when the point'l of the pen is turned npwrd, 'suhstantially the saine as `described in 'the foreong specification" and the accompanying rawings.

3. The combmation of, the concaaparhof lthe pstonrod with a. conical seat. for the salme iu the screw-cap, so that when the piston-rod