US873769A - Fountain-pen. - Google Patents

Description

PATENTED DEC. 17, 1907.

J. P. MORRIS.

FOUNTAIN PEN.

APPLICATION FILED 0012s, 1906.

Wfi/TNESS-ES: I

JAMES P. MORRIS, OF PHILADELPHIA, PENNSYLVANIA.

FOUNTAIN-PEN.

Specification of Letters Patent.

Patented Dec.. 17, 1807.

Application filed October 3. 1906- Serial No. 337.195-

To all whom it may concern:

Be it known that lsa-JAMES P. Monms, a citizen of the United States of America, and

a resident of Germantown, Philadelphia,

itself, and is provided with a force feed bywhich means a constant flow of ink is obtained without recourse to the usual In thod of shaking, no matter what the condition of the pen-point or the uality of the fluid used, this feed being used a so for filling the barrel.

Therefore,,the invention consists in the construction, arrangement and combination of parts hereinafter described and claimed.

In the accompanyin drawings, illustrative of my invention, igure 1 1s a central longitudinal section of my improved fountain pen. Fig. 2 is a transverse section on line 2 2 of Fig. 1. Fig 3 is a transverse section on line 3 3 of Fig. 1.

tion on line 4 4 of Fig. 1.

Similar characters of reference indicate corresponding parts throughout the diiferent The piston screw uide 3 is provided with a shoulder 14, whic in connection with 'the cylindrical projection 15 of the barrel 1 forms an annular groove 26. Through the passage in the piston-screw guide or bushing 3 which is also of substantially rectangular cross-section, passes. the piston screw 2, which fits loosely enou h in said corresponding passage in the ushing 3 to allow its endwise' motion in the passage 23, Fig. 3,

though prevented from rotation by the shape of said passage. Alongside the shoulder 14 of this piston-screw guide 3 is an interiorly-threaded nut 4, through which the Fig. 4 is a trans-' verse section of a modification of the lnvenpiston screw 2. also passes. vided with an exterior longitudinal tongue or key 19 which is received by a slot or groove 9 in a rotary operating member 5, un eempelling the rotation of the nut 4 withsaid operating member 5. The nut 4 is retained against longitudinal movements by the shoulder 14 of the piston-screw guide 3 and the projection of reduced diameter'25 on a sheath 7, which screws into the rotating member 5. Said rotating or operatin member 5 is tubular in shape and provide with a slot or groove 9 for the reception of the rib 19 on the nut 4 The end containing the slot is interiorly threaded at its extremity to receive the projection of reduced diameter 25 on the sheath 7, and in its intermediate portion is provided with an interior circular rib 16 entering the groove 26, fornied between shoulder '14 and the cylindrical projection 15. The exterior surface of said'rotary operating member 5. lies flush with or'above the surface of the barrel 1, and at the end containing the inte- Said nut pr rior' threads is immediately adjacent to an annular shoulder 18' on the sheath 7. Said sheath 7 is provided with said shoulder 18- adjacent to the threaded end of the rotary operating member 5 and is also provided with'a projection of reduced diameter 25 screwing into said rotary.;rnember 5.. Said I sheath 7 is 'madesufficiently long to house the iston-screw 2 even at the completion of its ackward stroke, and tapers toward a rounded end 24 in order to carry an outer cap 22, which is of the usual form and attachable in the usual manner, said cap being employed to cover the pen-point when the pen is not in use; I

In a modification of my invention, shown in Fig. 4, the piston-screw 2 is of circular cross section and is provided with a oove 6 to receive the longitudinal rib 27 on t e bush- .ing 3 which prevents the rotation of said piston-screw i'n-re ard' to said bushing.-

My im rove fountain pen is operated as.

follows: upposing the reservoir to be filled with writing fluid and the. piston 20 to be in.

the position shown in Fig. 1,-the'user may,

by turning the o crating member 5 in one d1reetion, cause t e interiorly-threaded nut 4, which is held stationary in regard to said H operating member 5 by the groove or rib. 19, to be rotated with said operating member 5, said interiorly threaded nut 4 causing the piston-screw 2 to move toward the pen-point said piston-screw 2 being held against rota-- tion relative to the piston rod guide or bush ing 3 by means of the substantially rectangu lar-shaped opening therein. Thus on the outstrok'e of the piston-screw 2, the ink is 'fed toward the point-1n a steady flow and without necessitating the usual shaking, while on the back stroke, by-a reverse movement of the operating member 5, the pen having been inserted in an ink receptacle, the piston in its retreat creates a suction suihoient to-draw up the ink into the reservoir without the ne-' .cessity of taking the pen apart. I

This improved fountain pen isalso capable of being readily taken apart. and cleaned. jHe'retofore it has been thou ht impossible to eject: sticky .or other like inierior" lnkswhich with the excess of ink collecting inthe previoneselffilling and automatic-feeding pens has resulted in muchannoyance to the users of. this style. of pen. These objectionable features are entirely obviated by the use. of a piston-screw as arranged in my invention and here n descr bed.

Having thus explained my invention 1' claim as new and desireto secure by Letters- Patent;

- the} bushing and being .held from rotation- 1; In a fountain pen, the combination of a barrel, a piston fitting the cavity within the barrel, a stem connected with the piston and screw-.threaded,,a bushing closing the end of the barrel, the piston stem extending through therein,. a nut for engaging with the threaded part of the stem for operating the piston, the

ushing constituting an abutment to pre.-

vent longitudmal movement of the nut in other direction,

2. The combination of a barrel, a bushing one direction, means for turning the nut, and

means "connected with the turning""meansand operating as anabutment to prevent longitudinal movement of the nut in the substantially as set forth.

mounted in one end thereof and provided with guide-,wa s, thereto and sli nut for operating-the screw, a shoulder on the 3. In a fountain pen, barrel, a piston and a andtrotatable therewith for o operating member.

a iston, a screw connected dab e in said guide-ways, a

outer end of the bushing so arra'n ed that there is formed an annular roove etween the shoulder and the end oft e barrel, a ring adapted to rotate in-said groove, and connec tions between the ring and the nut for rotating the latter to operate the screw, substantially as set forth.

the combination of a piston screw, a bushing mounted inone: end of the barrel, formed with an exterior annular" recess, varotating 'member-havinga rib engaging with said recess, a nut mounted within the said member piston and piston screw, and as eath covernected with the rotatable member and arranged to operate as an abutment for the nut to prevent the. longitudinal Imove'ment thereof in one direction, substantially as set forth.

4. In a'fountain' pen, a barrel, a bushing, a piston-screw guide having an annular shoulder, a reciprocating piston-screw, a

sheath housing said piston-screw and having a ,threaded projection, a rotary operating member, an interiorly-threaded nut, a means for attaching saidynut. to said operating member, a meansl for preventing longitudi-' erating the vmg the end of the piston screw-and con- I nal movement ofsaid nut in regard to said 5. In a fountain pen, a barrel, a projection therefrom, a piston-screw guide bushing,-

having an annularshoulder, an interiorlythreaded nut having an exterior rib, a pistongroove formed by the shoulder of said bushing and the projection from 'the barrel.

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