US1267288A - Fountain-pen. - Google Patents

Description

T. TAMMURA.

FOUNTAlN PEN'. APPLlCATloN FILED ocT.19.1v916.

Patented May 2l,1918.

` FTQE.

TAGIRO TANIMURA, 0F ROCK SPRINGS, WYOMING.

FOUNTAIN-PEN.

Application led October 19, 1916.

To all 'whom t may concern:

Be it known that I, TAGIRO TANIMURA, a citizen of Japan, residing at Rock Springs, in the county of Sweetwater and State of Wyoming, have invented certain new and useful Improvements in Fountain-Pens; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to self-filling fountain pens and more particularly to that type which are equipped with compressible sacks of soft rubber adapted to store the ink and to lill themselves by suction after they have been suitably compressed.

The principal object of the invention is to provide simple and eiiicient means for uniformly compressing the ink sack throughout its length to effectively empty it of air when it is to be filled with ink.

Another object is to provide means for forcibly ejecting a limited amount of ink when the pen point is dry, thus starting the ink to flow.

'Another object is to provide a device of this character having a lever so constructed and mounted that when one end thereof is lowered to its eXtreme limit, it will eject all the air from the ink reservoir and the other end when so lowered will eject a limited quantity of ink from said reservoir.

Another object is to provide a device of this character in which two levers of the first andthird class are employed for cooperation to quickly expel the air from the reservoir with a minimum amount of exertion 'and in which the lever of the third class operates to hold the other lever normally in closed inoperative position.

This and other objects of the invention are accomplished by providing a frame in which the fulcrums of the levers are mounted and which with the connected parts is inserted as a unit in a longitudinal slot provided for its reception in the pen barrel.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in precise embodiment of the invention herein disclosed may be made Specification of Letters Patent.

barrel 1 and has vbar 16 which latter Patented May 21, 1918. Serial No. 126,597.

within the scope of what is claimed without departing from the spirit of the invention.

In the accompanying drawings Figure l represents a top plan view of a fountain pen equipped with this attachment;

Fig'. 2 is a longitudinal section thereof with the levers shown in closed position;

Fig. 3 is a similar view of the pen barrel with the levers shown in open operative position;

Fig. A is a similar view with the levers shown in the position for starting the flowing of the ink when the pen point is dry;

Fig. 5 is a transverse section taken on the line 5-5 of Fig. 2;

Fig. 6 is a similar view taken on the line 6-6 of Fig. 2;

Fig. 7 is an enlarged detail plan view of the attachment detached; and,

Fig. 8 is a side elevation thereof.

In the embodiment illustrated, the filler constituting the invention is shown applied to a fountain pen comprising a barrel l fitted at one end to a holder 2 carrying a point 3 and a feeding tube 4. A soft rubber ink sack or reservoir R extends through substantially the entire length of the bore of the its open end iitted to the inner end 5 of the holder 2 in the usual manner.

The barrel 1 is slotted longitudinally at 6, the slot having an enlarged finger space 7 intermediate of its ends.

The several elements of the attachment are united so as to be inserted as a single unit into the slot 6 of the pen barrel. This unit comprises a frame 10 having side bars 11 and 12 equipped at their lower edges with laterally projecting longitudinally eX- tending iianges 13 and 14 which are adapted to fit in recesses 15 at the sides of the slot 6 on the inner face of the pen barrel so that when in assembled operative position, the inner face of the frame will be flush with the inner face of the pen barrel to avoid any projections for contact with the pressure is of usual construction and lies between the reservoir and the frame 10.

End bars 17 and 18 connect the opposite ends of the side bars 11 and l2 and a flange 19 projects laterally from the lower edge of the front end bar 17 to fit a recess l5 at the rear end of the slot 6 on the inner face of the pen barrel. Thelower edge of the rear end bar 1S is spaced inwardly fromy the bottoms of the side bar flanges forming a seat 20 for a purpose to be described.

The flanges 13and.11 project at theirl rear ends beyond the cross bar 18 to form attaching fingers 21 which are inserted in recesses 15 at the rear end of the slot 6 on the inner face of thepen barrel.

'This frame 10 is of a height or depth corresponding to the thickness of the side walls of the pen barr.el s o that when ,the frame is inserted in the slot 6 with itsflanges dis-l posed in the recesses 15, 15 and 15, its inner and outer faces will be flush with the inner and outer faces of the pen barrel.

Pins22 and23 extendthrough the side bars 11 and 1 2of the frame near the oppositeendsthereof and enter the pen barrelon opposite sidesof the in lFig. 1. These pins perform the double functien of anchoring means for the frame Eiland f fulcrums for twolevers 25 and 30 soon! to V' be I the side bars 11 and 12 ,have registering krecesses or notches 24 positioned to receive the head 31 ofthe lever 30 to provide for thepositioning of the upper face ofsaid lever flush with the upp'erfaceof the frame 10 and also to permit saidheadfto be depressed into said recesses a predetermined distance i controlled by the depth of therece'sses which are greater than thethickness of the, head for a purpose to be described.

vThe leverv30. which will be termed the operating lever is a lever ofthe first ,class and is fulorumed on thepin 23, being of a length equal to substantially one-half of. thelength of the framelO. This lever has a flat head 31 at its front end and a longitudinally: proiecting toe 32 at its rear end, said toerbeing-l designedto lit against the lower edgeof. the rear crossbar 18 between vthe anges lofthe side bars 11 and 12, said cross bar serving as a stop to limit theclosing` movement of the lever7 whereby its head31 is housed in the. recesses 24Ey with its lower inner face positioned so as `to be spaced from the bottoms of the recesses 2li toprovide for its being depressed into said recesses vwhen desired vto accomplish an object presently tobe described.

The, lever 25 which is a lever of the ,third class isfulcrumed lat one end ,on the pin 22, its free end being deslgnedto engage the pressure bar 16 which is thepointof resistance of said lever 25.

thesame length `as the frarnelO.

Steltellv less ythe ,thickness of the front end bar v17 andthe frontend ofg this lever beveledas. shown at 26 to fit a correspondingly beveled seat17/ von the inner, face of said. .bar.17.

This lever 25 hasthe rear portionlof its 'thereof which underlaps the lever 30ft0l t within the Yframe 10. so that Lits lower face slot 6 as shown clearly described. The upper edges of This lever, is sub the cut-away rear: `portion, of thelever1251 and of the lever 30 whichoverlaps-said cutaway portion correspon dsto ,the depthsof the frame 10 so that vwhenin closedposition, the outer faces of said levers and frame.v will be arranged flush-witheach other.

The cut-anvayrear portion of the "lever 25 has a recess28 1n its outer face between its ends with a right-angular shoulder 2.9.for'med at the front end of saidy recess, the bottom-` of said recess being inclined'rearwardly andI outwardlyfrom said shoulder to facilitate the engagement of the toe 32 of the lever 30 when Athe latter; is swung. outward to open operative positi'omas shownlin Fig, 3. The

free end of'lever 25 ts .snugly betweentthe ends 21 of fianges 13 andl` oftheframe 10.

Tn the use of this attachment,v the vparts being inthe position shown in Figs.l 1 and 2,y and it is desired to deflate the ink reservoir preparatory to filling said lreservoir withy ink.A all that is necessaryis to `grasp the` head 3 1 of the lever 30 between ytheltipsof the, thumb ,and 1forefinger. andmove said lever outwardlypg causing -@its .vtoefcarrying end to move inwardly against theunderlyp` ing portion of theflever 25 wherebythettoeof said lever 30 movestoward thefulc rumy of llever25 and forcessaid 1lever.inwardly until said toe cemesl into, engagement with theslioulder v29 lat the end of the. recess 28; of saidlev'er 25, which operates to. stop said lever 30 bymeansofwhich said;leversarey held in interlocking. position. the lever 25 bear-ingagainst the pressure bar 16 `fore-1A ing it against thereservoir, therebyt deflating; it. This movementof thelevers completely i empties said reservoirl andto fill it vwith inl@` all that is necessaryisvr to subrnergethe.endv

of the fillertube l inink andthenfswing. ther lever 30 back into closed positionywhich will r disengage its toe from theleven25 andpermit; the latter to move into closed-p,osition under the action of the expandingreservoin@ l/Vhenthe reservoir is filled,y the pressure bar,l

bearingfagainstthe toe-carrying .end of ,lever 30, V.operates to hold it,\ in closed/. position Reemst aeC1Clental.opening- Whenthe parte I A, .in this position,- the head31 of lever-30' outer face ycut away to adapt vthe portion is disposed in vthe recesses` 24k of the frame 10,

that V whenit is `desiredtofejeet zasmall quan,- y

i will be forced. againstthe lever. 25 andhold `the samein closedpositionand thisfflevelf,.A

.isole tity of ink from the reservoir, in order to start it to flowing when the pen point is dry, all that is necessary is to force said head inwardly thereby causing the lever 30 to bear against lever 25 and force it inwardly a distance suilicient to eject a small quantity of ink from the reservoir, the movement of said lever being controlled by the space between the inner face of head 31 and the bottoms of the recesses 24.

From the foregoing description, it will be seen that the lever 30 operates both as a deflating lever and as an ink starting lever and that the pins 22 and 23 perform the double function of attaching means for securing the frame to the pen barrel and of fulcrums for the levers 25 and 30.

While I have described the principle of operation of the invention, together with the device which I now consider to be the best embodiment thereof, I desire to have it understood that the device shown is merely illustrative and that such changes may be made as are within the scope of the claimed invention.

I claim l. An ink sack deflating device for fountain pens comprising a presser bar, a me1nber operable in two directions, and means associated with said bar and said member and being engaged by said member when the latter is operated in one direction to force said bar into complete sack deiiating position, said means being also engaged by said member when the latter is operated in the other direction to force said bar into partial sack deflating position.

2. An ink sack deflating device for fountain pens comprising two levers, one being operable in two directions and when operated in one-directiony engaging the other lever to force the latter into complete sack delating position and when operated in the other direction engaging said other lever to force the same into partial sack deiating position.

3. An ink sack deflating device for fountain pens comprising a lever fulorumed at one end, another lever fulcrumed intermediate of its ends, the fulcrums of said levers being relatively fixed and in spaced relation, the last mentioned lever when closed overlapping the first mentioned lever and having both of its ends operable to depress the latter, and means for limiting the depression thereof by one of said ends.

4. An ink sack deflating device for fountain pens comprising an open rectangular frame having registering notches in the outer edges of the side bars thereof, a lever fulcruined at one end in one end of said frame and extending longitudinally of the same, another lever fulcrumed intermediate of its ends at a point spaced inwardly' from the other end of said frame, and when closed, overlapping the first mentioned lever, a head provided on one end of said lever and being disposed in said notches, said head forming a stop for limiting the movement of the last named lever when the latter is actuated in one direction, and coacting elements carried by said levers for limiting lthe opening movement of one relatively to the other when the last mentioned lever is actuated in the other direction.

5. In a fountain pen, the combination of a barrel having a slot therein and recesses communicating with said slot on the inner face of said barrel, a rectangular' open frame disposed in said .slot and having flanges eX- tending laterally outwardly from the inner edges of the sides and ends thereof, said flanges being seated in said recesses, a pair of spaced pins extending transverselyT through said frame and having their ends anchored in the pen barrel, levers fulcrumed on said pins within said frame, one lever overlying the other, the overlying lever engaging the other when opened to force the other into working position.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

TAGIRO TANIMURA.

Witnesses:

S. P. SNYDER, Roer. D. MURPHY.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C.

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