US229102A - dellenbauqh - Google Patents

Description

(ModeL) F. S. DELLENBAUGH. Stylographio Fountain Pen.

No.- 229,102. Patented June 22,1880.

flttorneys N. PETERS. PROTO-LITHOGRAFHER. WASHINGTON. I10.

UNITED STATES PATENT OFFICE.

FREDERICK S. DELLENBAUGH, OF NEW YORK, N. Y.

STYLOGRAPHIC FOUNTAIN-PEN.

SPECIFICATION forming part of Letters Patent No. 229,102, dated June 22, 1880.

Application filed May 12, 1880. (ModeL) To all whom it may concern:

Be it known that I, FREDERICK S. DELLEN- BAUGH, of New York, in the county of New York, and in the State of New York, have invented certain new and useful Improvements in Stylographic Fountain Pens; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings and to the letters of reference marked thereon, making a part of this specification.

The nature of my invention consists in the construction of a stylographic fountain-pen, as will be hereinafter more fully set forth.

In order to enable others skilled in the art to which my invention appertains to make and use the same, I will now proceed to describe its construction and operation, referring to the annexed drawings, in which- Figure 1 is a longitudinal section of my pneumatic pen. Fig. 2 is a detailed View of the point D.

A represents the body of the pen, made hollow, in cylindrical or other suitable form, for holding ink. In the upper end of the tube or cylinder A is screwed a cap, B, formed with a shoulder, Z), to come close to the end of the tube when screwed in tight. Close under this shoulder are perforations a a. The other or lower end of thetube A is formed or provided with a hollow point, 0, in the extremity of which is soldered a spiral, I). This spiral D is made from a blank, I), of gold or other suitable metal, turned on a mandrel in spiral form, and tipped with iridium, platinum, or other suitable hard substance, as shown at i,

I and then soldered in the hollow point 0 of the tube. In the hollow point 0, near the end, are perforations a; m.

F is a screw-cap fitting over the part 0,,and completely obstructing or closingthe orifices m.

G is a capfor protecting the point D. Within the tube or cylinder A is a piston, I, moving closely and yet freely therein.

w are covered, when, by exhausting the air from the tube by means of suction, (month or otherwise,) the piston I is forced to the top and the ink is drawn in at a; and fills the cylinder. The cap F is then screwed on, and the cap B adjusted so that only a small quantity of air can enter, and the pen is ready for use.

As the ink is exhausted the piston I gradually returns toward the lower end of the tube or cylinder.

If preferable, the piston I may be drawn up by means of a rod to be screwed intoits upper end when the cap B is removed.

The spiral point of my pen is flexible and soft, and gives as much freedom as a quill.

Having thus fully described my invention,

what I claim as new, and desire to secure by Letters Patent, is-

1. In a fountain-pen, a spiral point made of gold or other metal and tipped with iridium, platinum, or other suitable substance, substantially as herein set forth.

2. In a stylographic fountain-pen, the combination of the tube A, perforated cap B, perforated point C, spiral point D, cap F, and interior piston, I, substantially as and for the purposes herein set forth.

In testimony that I claim the foregoing I have hereunto set my hand this 3d day of May, 1880.

FREDERICK S. DELLENBAUGH.

Witnesses THOMAS MORAN, J. O. DAVIDSON.

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