US1034661A - Fountain-pen. - Google Patents

Description

J. E. SWARTHOUT.

FOUNTAIN PEN.

APPLIOATION FILED DEG. 29, '1911.

Patented Aug. 6, 1912.

Attorneys 6 {IN VEN T OR suction device for residing at Elmira,

Pens; and I do hereby declare the l to be a full, clear,

JAMES E. swARrHoUr, or ELMIRA, NEW YORK.

FOUNTAIN-PEN.

To all whom it may concern:

Be it known that I, JAMES E. SWARTHOUT, in the county of Che mung and State of New York, a citizen of the United States, have invented certain new and useful Improvements in Fountain following and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same.

My invention relates to an improvement in fountain-pens, and more particularly to means for filling the reservoir of the pen with ink. I

It has for its object to provide a device which is capable of being applied to fountain-pens of various kinds to enable them to be filled with ink without soiling the hands of the user or removing the point section or neck of the pen.

It also has for its object to provide ado; vice by means of which the pen may be inserting the end containing the pen into a suitable receptacle containing ink and operating the piston.

It further has for its object to provide a filling the reservoir of the pen which is capable of being expanded to take up wear and fit the reservoin at all times and provide an air and liquid tight joint and dispense with all packing between it and the reservoir.

It still further has for its object to provide a device which. is simple, durable and inexpensive in construction, easy to operate and which when applied to any form of pen will not change or alter its appearance.

The invention consists in the several features and the construction, combination and arrangement of said features as more fully hereinafter. described and claimed.

Referring, to the drawings:-Figure 1 is a sectional view of a fountain-pen, partly in elevation, with my invention applied thereto showing the position of the several parts when the piston is not in use. .Fig. 2 is a similar view to Fig. 1 showing the po: sition of the several parts when the piston is in use. Fig. 3 is a detail side view of the piston .and piston rod. Fig. 4 is a detail fac'e view of the Fig. 5 is a sectional view of a modified form of piston. Fig. 6 is a sectional view of another modified form of piston.

In the drawings in which like numerals Specification of Letters Patent. I Application filed December 29, 1911.

- piston 'erably split member of the piston- Patented Aug. l6, 1912. Serial No. 668,563.

of reference denote like parts throughout the several views, 1 represents the fountainpen which comprises a barrel or cylinder 2 provided at one end 3 with a point section or neck 4 having a pen point or nib 5 and the usual feeding connection 6, whichis not shown in detail as it may be of any well known construction. The opposite end 7 of the barrel is provided with a hole 8 and a screwthreaded projection 9. An inte-' riorlyscrewthreaded handle 10 is secured on the projection 9 and the usual pen protecting cap 11 is provided which when the pen is in use is adapted to be inserted over the handle 10 and when the pen is not in use is adapted to be inserted over the point section or neck 4. 1 l r A piston rod 12 is provided, within the barrel 2, one end of which is secured in the lrole in the handle 10 in any desired manner, while the other end is provided with a head 13 which comprises a beveled portion 14 and a screwthreaded portion 15 which tapers down to the piston rod at 16. The comprises two annular ring- like members 17 and 18 one expansible and the other non-expansible and both made prefof hard rubber or like material. The member 17 is designed to be mounted loosely on t e beveled portion 14 of the piston head 13 and has an interiorly' beveled surface 19, said member 17 being split as shown at 20 for the purpose of allowing it to be expanded or enlarged in circumference by the beveled portion 14 of the piston head to have-a spring action. The other member 18 of the piston is provided with an interiorly screwthreaded surface 21 designed to be screwed on to'the screwthreaded portion 15 of the piston head 13 and when ton rod is turned, in one direction, against the split spring. member 17 and cause itto be expanded by the beveled portion 14 of the head of the piston and hold it in its expanded position and form a tight joint between it and the interior surface of the barrel.

In the modifications shown in Figs. 5 and 6 the construction of the two annular ringlike members 17 and 18 is the same as shown in Figs-1 to 4 inclusive with the following to press exceptions :In Fig. 5 the member 17 is provided with an annular recess 22 in its inner face and the member 18 is provided with an annular projection 23 on its inner face, designed to enter the recess 22 in the the .pis-

- enter the recess the position shown in Fig. 1, are

tion ofthe member 17 'themember '18 is member 17, and by means of the spring acassists in holdingfl or clamping said members together. In 1g 6 the member 17 is provided with an annula-r beveled'recess 24 in its inner face and provided with an annular its inner face, designed to at of the member 17, to assist in holding' or clamping said members together.

In operation the several parts, being in caused to assume the positions shown in full and dot-ted lines as shown in Fig. 2, by unscrew ing the handle 10 from the projection 9, sliding thepiston rod outward and rotating it until the beveled persona of the piston head engages with the interiorly beveled surface 19 of the'member 17 and the interiorly screwthreaded portion 21 of the member 18 engages the screwt hreaded portion 15 of the piston head. Then by rotating the piston rod in one direction the member 17 will be expanded and made to closely fit the interior surface of the barrel 2 and by rotating the piston rod in the opposite direction projection 25 on the member 17 will be cont'racted and in this manner, that is by the expansion and contraction of said member 17 ,a close air and liquid tight joint will always be maintained between the piston and the barrel. The piston rod is then slid inward, as shown in dotted lines in Fig. 2, the pen point inserted in ink and the piston rod slid outward which draws or sucks the ink into the barrel. To return the several parts to their former positions the piston rod is rotated untilthe head thereof is disengaged from the two piston members 17 and 18 and is then slid inward and the handle 10 screwed onto the projection 9 of the barrel.

I do not desireto be understood as'limit- Vance of said beve ing myself to the specific details of construction and. arrangement as herein described and illustrated, as it is manifest that variations and modifications may be made in the features of construction and arrangement on the adaptation of the device to various conditions of use without departing from the spirit and scope of my invention and 1mprovements. I therefore reserve the right to all such variations and modifications as properly fall within the scope of my invention and the terms of the following claims.

What I claim is .1. In w-fountain pen, rod, beveled'at one endand threaded in adedend, an expansible split member movably mounted on the pieton rod; and means cofiperating. with the threaded portionof the piston vance the split member upouthe beveled a barrel, a piston rod toadpart of the piston rod and thus cause it to be expanded, and to lock it in its various'advanced positions, substantially as'described.

2. In a fountain pen, rod, beveled at one end ahd threaded in advance of said beveled end, an expansible split member movablymounted on the pie ton rod and provided'with a recess, an

means cooperating with the threaded per a barrel, a piston tion of the piston rod to advance the split r member upon the beveled part of the piston rod and thus cause it to be expanded, and to lock it in its various advanced positions, said means provided with a projection adapted to engage the recess in the expans'n ble split member, substantially as described, In testimony whereof, I afiix my signature in the-presence of twowitnesses.

JAJHES SWARTHOUE. Witnesses: 1

Gnonen F. FEAN, Cnorn C. Cnanmnns.

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