US1263260A - Fountain-pen. - Google Patents

Description

R. W. LOTZ.

FOUNTAIN PEN.

` APPLICATION man MAR. 1|. Isls.

Patented Apr. 16, 1918.

Imm, NNmv- A I I I I I IP R'UDLPH WM. LOTZ, OF CHICAGO, ILLINOIS.

FOUNTAIN-PEN.

Speccation of Letters Patent.l Patented ilpi't. 16, 1918.

Application iled March 11, 1918. Serial No. 221,803.

' To all whom t may concern.'

Be it known that I, RUDOLPH IVM. Lo'rz, citizen of the United States, residing at Chicago, in the county of Cook andState of clear, and exact description of the invention,

such as will enable others skilled inthe art to which it appertains to make and use the same. l

This invention relates to improvements in fountain pens, and more particularly to socalled lever operated self-filling fountain pens. It has for its several objects:

First: To provide a fountain pen of this character in whichthe lever when closed, after being operated to collapse the ink reservoir is automatically positively locked in its closed position. Y

Second: To provide a fountain penl in which the lever when closed and locked is so housed by the slot in which it lies as to be inaccessible for operation to' reopen the saine intil the locking device therefor is released from engagement therewith.

Third: To provide means for locking the lever as aforesaid in combination with means whereby the lever is initially automatically moved toa partially open position so as to render it very easily accessible to the finger nail or ngei' tip for moving the saine to its completely open position.

F oui-th: To provide such a connection between the lever and the pressure bar of the pen as will cause the pressure bar to be held in such close contact with a contiguous surface of the inner wall of the barrel when the lever is iii closed position as to insure maximum ink capacity of the ink reservoirwithin the fountain. pen barrel.

Fifth: To provide means on the lever and its lock for readily enabling these partsV to be accurately positioned with relation tov each other in assembling the pens to insure ti'al longitudinal section of a fountain pen constructed inaccordance with my inveiition. x

Figs. '-2- and 3* are vertical'transverse sections of .the saine on the lines 2 2 and 8 3 respectively, of Figi-1 Figs. en and -5- are' fragmentary de'- tail transverse sections on the lines 4 4 and 5-15 respectively, of Fig. -1*.

Fig. .-6- is a fragmentary detail top" plan view of` that portion of a fountain pen containing the slot housing the locking element for the lever. Y

Referring now to said drawings, 1 indi'- Cates the cylindrical barrel of ak fountain pen which is of the usualv construction employed in pens of the character referred to. posed within said barrel 1 is a collapsible ink sack 2 also of the ordinary and well- Disknown construction, the open end of which is connected with whatv is known as the pen section containing the nib or point and the f feed fo-r feeding ink to the point, all of whchparts are well-known in the art, and

are omitted from illustration for that reason.

The said barrel 1 is provided with a longitudinal slot 3 in which the lever 4 is .pivotally lmounted between its ends upo-n a pin 5 spanning the slot between the ends thereof. The lever is Uv-shaped in cross-section and the flanges thereof extend linwardly from the middle portion which is disposed practically flush with the outer circumferential face of the barrel 1. Mounted within the the pen section and nib into an ink-well for the purpose of filling or refilling a pen. The said bar 6 is provided substantially midwa between its ends with an elastic wire loop extending upwardly from the bar and which is 4connected with one end ofthe levert by ineaiisof thepin 8 or similar device spanning one end of said lever contiguous to the lower edges ofthe flangesl thereof, and at one end of the latter. The loop 7 is preferably inade of an elastic wire and, in order to render` the same suiiiciently flexible for the purposes of the present invention, it is extended at its ends to provide portions 9 normally lying flat upon the upper lface of the bar and having their ends passed through perforations in the bar and turned 4over on the lower face of the saine into smalllongitudinal grooves 10 provided for the purpose. lt will be noted that when the pressure bar 6 is at the upper limit of its movement its side edges lie in contact with the inner circumferential wall of the barrel at portions disposed at either side of the slot 3. Then the lever is in closed position, as shown in full lines in Fig. -1-, the pin 8 serves to distort the loop of wire 7 on the bar, including one of the end portions 9 thereof, thus yieldingly forcing the bar more firmly into Contact with the inner circumferential wall Vof the barrel at portions disposed at either side of the slot 3. .Vhen the lever is in closed position, as shown in full lines in Fig. --1- the pin S serves to distort the loop of wire 7 on the bar, including one of the end portions 9 thereof, thus yieldingly forcingv the bar more firmly into Contact with the inner circumferential wall of the barrel and tending tok normally hold the lever in the position shown in dotted lines in llVhen the lever is turned from the position shown in Fig. -1- through an arc of about ninety degrees the pressure bar 6` will be moved diametrically of the barrel toV collapse the sack. At this time the pin 8 will be disposed at the opposite end port-ion of the loop 7 from that in which it lies when the lever is closed, said end of said loop constituting a stop to limit the opening move- .mentl of the lever. lThe latter will now be held in the vertical position until manually turned through an arc of substantially twenty or thirty degrees toward closed position; whereupon the expansive force of the sack will draw it back tol the positionl substantially as shown in dotted lines in.

The slot 8 is` of greater length than the lever il and in one end thereof there is mounted a sliding latch member 11 consisting of a ll-shaped member having a top wall disposed flush, or substantially flush, with the outer circumferential wall of the barrel, and having two parallel side flanges extending into the slot. rlhe top wall of said member 11 is projected beyond the ends of the flanges and bent downwardly to form a sharp lip 12 which is adapted to engage in the recess 13 in the opposed ends of the flanges of the lever el. 1n the flanges let of the member 11v are through which a pin 16 passes; the latter spanning the slot. rllhe rear end portion of the member 11 is further provided withy a closure element 17 preferably consisting of a flange disposed at the inner edgeof one of the flanges 11, and bent over at right angles thereto into Contact with the opposite flange. rilhe said closure member 17 terminates in a lip 18 extending, upwardly between the flanges 1li and preferably intersecting the slots 15. This said closure member 17 and the top wall of the member 11 longitudinal slot-s 15- terminate in rearwardly extending projections 19 and 20 which extend beyond the ends of the flanges 14. The projection 19 engages in a longitudinal recess 21 in the outer circumferential wall of the barrel constituting` what may be termed an extension of the slot 3. The projection 2O engages the inner circumferential wall of the barrel and coacts with the projection 19 and the slots 15 and pin 16 to guide. the member 11 in its longitudinal movements in the slot. A spring 22 is interposed between the lip 18 and the contiguous end wall of the slot 3 and serves to normally hold the member 11 in the position shown in full lines in Fig. -1-..

The recesses 13 in the flanges at the. contiguous end of the lever 4 present shoulders 23 which are parallel with the axis of the barrel 1 and below said shoulders 23 are inclined surfaces 24 which are adapted to engage the inclined outer face ofthe lip 12 as` the lever f1 is forced toward itsk closed position to effect retraction of the member 11 against the action of the spring 22 until the meeting surfaces of the shoulder 23 and inclined portions 24 have passed the forward edge of the lip 12 whereupon the spring 22 will cause the memloer` 11 to move to the position shown in Fig. -1- to positively locl; the lever d in its closed position. lnv the outer circumferential wall of the barrel there is provided a transverse recess 25V and in the top wall of the member 11 is a transverse slot 26 which is disposed between the ends of the recess 25' when th-e member 11 is in the position shown in full linesin Fig. -1-. A finger nail is adapted to be insertedv into the slot 26, and the member 11 moved against the action of the spring 22 to. rele-ase the lever. Thereupon the lever will automatically mov-e to the position shown in dotted lines in Fig. -1-, thus permitting the same to be readily .engaged by the finger-nail or linger-tip for turning said lever through the aforesaid arc of about ninety degrees to effect comple-te collapse of the ink reservoir 2.

llhen the lover d. is in closed position, as shown in full lines in F ig. -1- the space between the outer inclined surface of the lip 12 and the opposed end portion of the lever e'r there will be no space between said surnient is required, and I provide means for effectingv such adjustment by rendering the li p 12 bendable to a limit extent, and further i by enabling the lip 18 to be bent to either side of the position shown in Fig. -1-,

thus varying` the position of the latch'fmeni# pin 1G to determine the normal position of the member 11.

l."Vhile I have shown the preferred embodiment of the invention in the accompanying drawings, it will be understood, of course, that the saine may be changed and varied in immaterial details `as mechanical slrill may dictate without departing from theV invention as dened in the appended claims.

` I claim as my invention:

1. In a self-filling fountain pen includ" ing a barrel, having a. longitudinal slot, a collapsible ink-reservoir within the barrel, a pressure bar within the barrel, a lever pivotally mounted between its ends in the slot in the barrel, one end of the lever engaging the pressure bar-for moving the latter diametrically of the barrel as said lever is turned from closed to open position, a

manually operable plunger slidably mount ed within one end of the slot, and interengaging formations on said plunger and one end of said lever for loc-king the latter against movement relatively to the barrel when in its closed position.

2. In a self-filling fountain pen includ-v` .niatically engaging said element with'said lever as the latter is forced to its closed position for automaticall ositivel locking J. b

said lever against movement untilv said element is manually released from engagement with said lever.

3. In a Self-filling fountain pen including a barrel, having a longitudinal slot, a collapsible ink-reservoir within the barrel, a pressure bar within the barrel, a lever pivotally mounted between its ends in the slot in the barrel, one end of the lever engaging the pressure bar for moving the latter dianieti'ically of the barrel as said lever isv tui-ned from closed to open position, a spring-held latch plunger mounted to reciprocate in one end of said slot for automatically engaging one end of said lever to lock the same in its closed position as said lever is forced thereto against the resistance of said' plungen 4:. In a self-filling fountain pen including a barrel, havingv a longitudinal slot, a collapsibley ink-reservoir within the barrel, a

pressure bar within' the barrel, a lever pivotally mounted between -its endsr in the slot in the barrel, one end of the lever engaging the pressure bar for moving the latter diaineti'ically of the barrel as said lever is turned from closed to open position, a manually operable plunger slidably mounted within one end of-tlie slot, iiiterengaging formations 'on said plunger and one end of saidlever for. lockingl the latter againstV 5. In a self-illing fountain pen including a'barrel, having a longitudinal slot, a col- L la asible ink-reservoir Within the barrel va n ,a pressure bar within the barrel, a lever pivotally mountedl between its ends in the slot4 in the barrel, one end of the lever engagingthe pressure bar for moving the latter diainetrically of .the 'barrel 4as said lever is turned from 'closed Vto open position,"l a spring-held 'manually releasablelatch ele- Vment niov'ably mounted inon'e yend ofv said slot, and c'oacting formations on said latch sition for automaticallyH positively locking said lever against movement until said'ele-y nient is manually released from engagement with said lever, the engagement of said bar with said lever includingv means co-acting with the bar and the inner wall of thebarrel for yieldingly resisting closure of .the'lever and automatically partially opening the same as it is released from engagement with said latch element. 1 i

6. In ,a self-filling fouiitainpen including a barrel, having. a longitudinal slot, a collapsible ink-reservoir within the barrel, av pressure bar within the barrel, a lever pivotally mounted between its ends in lthe slot in the barrel, manuallyl releasable means for positively locking the lever in its closed position, and connection Abetween one end of said lever and said pressure bar for reciproeating the latter diametrically of the barrel as said lever is turned from closed to open velement and one end of said lever for auto-` matically engagingsaid element ,with said lever as the latter is forced to its closed po? position and vice versa, said connection inpartially opening the same as it is released preparatory to turning the same to effect collapse ofi the ink reservoir.

7. ln a self-filling fountain pen including a barrel, having a. longitudinal slot, a collapsible ink-reservoir within the barrel, a pressure bar` within the barrel, a lever pivotally mounted between its ends in the slot in the barrel, manually releasable means for positively locking the lever in its closed position, anv elastic loop on the bar,A a pin in one end of said lever passingthrough said loop for effectingza sliding'` connection between the bar and lever for reciprocating said bar diametrically of the barrel as said lever is turned through any arc approximating ninety degrees, said bar adapted' to engage the inner wall of the barrel before said lever attains itsclosed position and said loop adapted toyield as said lever is forced to closed position to cause the bar to firmly engage the inner wall of the barrel and to automatically effect partial opening of the lever as the latter is released. from said locking means.

S. ln a self-filling fountain pen including av barrel, having a longitudinal slot, a collapsible ink-reservoir within the barrel, a pressure bar within the barrel7 a lever pivotally mounted between its ends-in the slot in the barrel, one end of the lever engaging the pressure bar for moving the latter diametrcally of the barrel as said lever is turned from closed to open position, a manually operable plunger slidably mounted within one end ofthe slot, intereng'aging formations on said plunger and one end of said leven` for locking the latter against movement relatively to the barrel when inv its closed position, said plunger adapted to prevent digital engagement of the lever when the latter is in .closed position.

9. In. a self-lling fountain pen including a barrel, having a longitudinal slot, a collapsible ink-reservoir within the barrel, a pressure bar within the barrel, a lever pivotally mounted between its ends in the slot in the barrel, one end of the lever engaging the pressure bar for moving the latter diametrlcally of the barrel as said lever is turned from closed to open position, a spring-held manually releasable latch element movably mounted in one end of said slot, and coacting formations on said latch element and one end-of said lever for automatically engaging said element with said lever as the latter is forced to its closed position for automatically positively locking said lever against movement until said element is manually released freni engagement with said lever, said manually releasable means adapted to prevent digital engagement of the lever when the latter is in closed position.

l0. In a self-filling fountain pen including a barrel, having a longitudinal slot, a collapsible ink-reservoir within the barrel, a pressure bar within the barrel, a. lever pivotally mounted between its ends in the slotv in the barrel,` one end. of the lever engaging the pressure bar for moving the latter diametrically of the barrel as said lever is turned from closed to open position, a springheld manually releasable latch element movably mounted in one end of said slot, coacting formations on said latch element and one end of said lever for automatically engaging said element with said lever as the latter is forced to its closed position for automatically positively lockingV said'lever against movement until said element is manually released from engagement with said lever,l and means associated with one of said elements and a part rigid with the barrel for effecting adjustment of said coacting formations with respect to each other to insure inter-engagement thereof said lever is closed.

ll. ln a. self-filling fountain pen including a barrel, having a longitudinalslot7 a collapsible ink-reservoir within the barrel, a pressure bar within the barrel, a lever pivotally mounted between its ends in the slot in the barrel, one end of the lever engaging the pressure bar for moving the latter diametrically of the barrel aslsaid lever is turned from closed to open position, a springheld manually releasable latch element movably mounted in one end of said slot, coacting formations on said latch element and one end of said lever'for automatically engnging` said element with said lever as the latter is forced to its closed position for automatically positively locking said lever against movement until said element is manually released from engagement with said lever, and bendable means on one of said parts in said slot for effecting adjustment thereof to insure their inter-eno'aoement to lock said lever as the latter is closed.

RUDOLPH WVM. LOTZ.

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