WILLIAM. A. HoUSTON AND DILLMAN CHARLEs HOUSTON, or Los ANGELEs, CATTEOBNIA.???NTAIN PEN. Application filed November 29, Serial No

Transcription

1

2

3 Patented Aug. 6, 19s. UNITED STATES PATENT OFFICE. WILLIAM. A. HoUSTON AND DILLMAN CHARLEs HOUSTON, or Los ANGELEs, CATTEOBNIA.???NTAIN PEN. Application filed November 29, Serial No ,123,171 Our invention relates to fountain pens of the character employing a plunger which is Similar reference characters refer to sirihi lar parts in each of the several views. operable in an ink barrel to fill the latter Referring to Figure 1, B desi with ink by means of suction. gnates a bar It is a purpose of our invention to provide rel which is made of any suitable material, a fountain pen of the above described char such as bakelite, in order that it may be 60 acter which simpli?ies the structure and op transparent so that the ink content of the barrel can be at all times observed. The eration of similar pens to the extent of per mitting such pens to be manufactured at a barrel has a bore 15 constituting an ink O relatively low cost, providing a pen of much chamber, and at one end of this chamber the more substantial construction, and a pen bore is reduced as indicated at 16 in order which is capable of being easily operated to to receive and frictionally retain therein an ink feeding spoon 17 and a conventional nib quickly fill the pen barrel with ink by the 18, the spoon being provided with an ink creation of suction therein.. - feeding duct 19 for delivering ink from the 15 ' It is also a purpose of our invention to provide a fountain pen in which the plunger chamber 15 to the nib. At the junction of 70 the bores 15 and 16 an annular shoulder 20 thereof can be effectively sealed when the. pen is not in use to prevent the possibility is formed, which provides an abutment against which a plunger, designated gener of leakage of ink from the barrel. - ally at P, is adapted to abut in its lower 20 A further purpose of our invention is the provision of a fountain pen having a cap most position. The upper end of the bore 75 covering the plunger rod and which is as 15 is enlarged as indicated at 21 to receive a gasket 22, a packing plug 23, preferably sociated therewith to permit actuation of the plunger valve to open or seal the ink bar formed of cork, and a screw plug 24, these.. 25 rel, thereby eliminating the necessity of re elements constituting a closure for the up moving the cap each time the pen is opened per end of the chamber 15. At the junc 80 for use or closed for carrying. tion of the bores 15 and 21 is an annular We will describe only one form of foun shoulder 25 upon which the gasket 22 seats. tain pen embodying our invention, and will The plug 24 is provided with an annular lip 26 which limits the inward screwing move 30 then point out the novel features thereof in claims. ment of the pluginto the barrel. These elle 85 In the drawings ments, namely, the gasket, sealing plug and Figure 1 is a view showing in verticallon screw plug, are all provided with a lined gitudinal section one form of fountain pen openings through which the rod R of the 35 embodying our invention, with the ink bar plunger P is adapted to move, the outer end rel filled and the plunger thereof sealed of the rod being provided with a head 27 against delivery of ink to the nib; which is adapted to be manually gripped in Figures 2, 3 and 4 are views similar to effecting the reciprocating of the rod, which Figure 1, showing other positions of the is normally enclosed in a cap 28 threaded on the plug ???! in effecting the filling of the ink barrel; The plunger P comprises an annular body 95 Figure 5 is an enlarged fragmentary sec 29 formed of suitable material, and having tional view showing the plunger of the pen. its outer periphery grooved to provide in side elevation; spaced annular projections 30 which have sliding contact with the inner wall of the 4S. of Figure Figure 65; is a view taken on the line 6-6 barrel. Extending through and secured in 100 Figure 7 is an enlarged fragmentary sec: the body 29 is a tubular member 31 con tional view showing a modified form of structed to lock the body thereon through fountain pen embodying our invention; the employment of washers 32. The upper 50 Figure 8 is a view similar to Figure 7, end of this member 31 is constructed to pro vide a valve seat 33 on which seats a valve l showing another position of the pen shown in Figure 7, and 34 formed on the inner end of the plunger Figure 9 i? a vertiçal longitudinal sec rod R. To provide an operative connection between the plunger an the rod and in a tional view showing the modified form of manner to allow relative movement of the 5s fountain pen embodying our invention. two to permait the valve 34 to open or close 0

4 V in respect to the passage the tubular mem ing ber 31 spaced is???????????? apart arms with a 35 yoke terminating 35 compris of removing the cap 28 each time it is de-,. at sired to open or close a valve 34 incident to their free end in a collar 35 which loosely the use or non-use of the pen. In this en embraces the rod at a point above the valve. bodiment of my invention I substitute for The feeding spoon 17 is provided at its the screw plug 24 a screw plug 37 having an upper end with a centrally disposed projec extension 38 projecting from the end of the tion 36 of such diameter as to be slidably re pen barrel and exteriorly provided with left ceived in the tubular member 31. As illus hand threads indicated at 39. The plunger trated, the feeding duct 19 extends up rod indicated at R is slidable in the plug 37 wardly into the extension 36, and with the and the extension 38, its outer end being pro plunger Pin its lowermost position as shown vided with a relatively large disk shaped in Fi gure 4, the extension functions to Seal head 40. On the outer end of the extension the tubular member in such manner that ink 38 from the chamber 15 is only permitted to sion is is a collar a member 41, while 42 provided threaded exteriorly on the exten with pass plunger, into thereby the duct. eliminating 19 and not the beneath possibility the right handed threads 43 to receive a cap 44. The inner end of the member 42 is formed of ink accumulating between the plunger with an annular shoulder 45 to limit the in and the spoon when the parts of the pen are ward screwing movement of the cap thereon. in the position shown in Figure 4.. The member 42 is provided with a pocket 46 In filling the pen it is of course necessary in which the collar 41 is received, and this to first remove the cap 28 when the head 27 pocket is of such diameter as to prevent is exposed to permit it to be pulled up the head 40 being received therein so that wardly, thereby imparting a corresponding such head is interposed between the outer movement to the plunger P, all as clearly end of the member 42 and a pocket 47 illustrated in Figure 2. During this upward formed in the cap 44. movement of the plunger the valve 34 occu In Figure 7 we have shown the rod in pies an open position so that air above the a position corresponding to the rod R in plunger is free to pass to the lower side Figure 4, in which the valve 34 is open, thus thereof as the plunger moves upwardly. Alf permitting ink to be delivered to the nib. If ter the plunger rod has been moved up it is desired to move the rod Rinwardly wardly to its greatest extent it is now to close the valve 34 and thus render the pen pushed downwardly, and at the inception of non-leakable the cap 44 is rotated in a coun this movement the valve 34 moves to closed ter-clockwise direction, causing the member position on the seat 33 so as to seal the 42 to be fed inwardly on the extension 38 plunger against air passing upwardly until the member 42 abuts the end of the pen through the tubular member 31 Upon con barrel. During this movement the cap car tinued downward movement of the plunger ries with it the head 40, thereby causing the rod the plunger is now moved downwardly, rod to move inwardly to close the valve 34. creating a partial vacuum in the chamber Further rotation of the cap 44 unscrews it above the plunger. In the lowermost posi from the member 42 by virtue of the right tion of the plunger as illustrated in Figure 4, hand threads 43 so that the head 40 is...now the extension 36 is seated within the tubular. uncovered to permit actuation of the plung member 31, the plunger engaging the shoul er rod in effecting refilling of the pen. fn der 20 and thus defining the lowermost po reapplying the cap it is rotated on the mem sition of the plunger. By inserting the nib, ber 42 in a clockwise direction until it strikes together with the spoon, into a bottle of ink the shoulder 45. and opening the valve 34 by an upward pull From the foregoing operation it will be on the rod R, the vacuum created in the manifest that the plunger rod R' can, chamber 15 will function to draw ink into through manipulation of the cap 44, be said chamber and rapidly fill the same, all moved to open or close the valve 34 without as illustrated in Figure 4. Through theme the necessity of actually removing the cap dium of the packing plug 23 the rod is re from the pen barrel. tained in this elevated position so as to main Although we have herein shown and de 55 tain the valve 34 open. Thus when the pen scribed only two forms of fountain pens em is in use ink is free to flow from the cham bodying our invention, it is to be understood ber 15 through the plunger, and into the that various changes and modifications may duct 19. When the pen is not in use the be made therein without departing from the rod is pushed inwardly to close the valve Spirit of the invention, and the spirit and , thereby sealing the plunger against the Scope of the appended claims. passage of ink therethrough and thereby We claim: sealing the pen against discharge of ink and 1. In a fountain pen, a barrel having a thus Referring rendering now the to pen Figures nonleakable.á plunger movable therein, said plunger com 7 an 8, we prising an annular body, a tubular member 65 have here shown a modified form of foun extending through the body and having one ?1,728,171 tain pen designed to eliminate the necessity O

5 ,723,171 3 end constructed to provide a seat, a yoke open or close said passage, a member 35 On the tubular body and extending above the threaded on the extension, a collar on the seat, a rod movable in the yoke, and a valve extension for maintaining the member fixed to the rod operable by the latter to against removal from the extension, and a engage or disengage shid seat, said valve cap threaded reversely from the extension engaging the yoke to limit the movement of for threaded engagement with the member 40 the rod in moving the valve to open position. and provided with a pocket to receive the 2. In a fountain pen, a barrel, a plunger rod head.. movable therein and having a passage 4. In a fountain pen, a barrel having a therethrough, a closure for one end of the tubular plunger movable therein and pro barrel having an extension provided exteri vided with a valve seat, a yoke on the 45 orly with left hand screw threads, a rod for plunger, a rod movable in the yoke, and a reciprocating the plunger movable through valve fixed to the rod for operation by the said closure and extension, a head on the latter to engage or disengage said seat, the outer end of the rod, a valve on the rod, said valve engaging the yoke to limit movement rod being relatively movable with respect of the rod in moving the valve to open 50 to the plunger to permit movement of the position. - valve to open or close said passage, a mem-. 5. In a fountain pen, a barrel having a ber threaded on the extension, a collar on tubular plunger movable therein and pro the extension for maintaining the member vided with a valve seat, a yoke on the against removal from the extension, and a plunger, a rod movable in the yoke, and a 55 cap having a right hand screw threaded en valve fixed to the rod for operation by the gagement with the member and provided latter to engage or disengage said seat, the with a pocket to receive the rod head. valve engaging the yoke to limit movement. 3. In a fountain pen, a barrel, a plunger of the rod in moving the valve to open posi movable therein and having a passage there tion, said yoke, comprising spaced arms pro through, having an a closure extension for one provided end of the exteriorly barrel jecting from the plunger, and a collar con 60 necting the free end of the arms and with with screw threads, a rod for reciprocating which the valve directly engages to limit the plunger movable through said closure movement of the rod in moving the valve and extension, a head on the outer end of to open position. the rod, a valve on the rod, said rod being relatively movable with respect to the plunger to permit movement of the valve to WILLIAM A. HOUSTON. DILLMAN CHARLESHOUSTON.