Fountain-pen.

Application filed Jan. 16, 1001.:

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United States Patent Office.

HEINRICH GERST, OF NEW YORK, N. Y., ASSIGNOR OF ONE-HALF TO PAUL WISNIEWSKI, OF SAME PLACE.

FOUNTAIN-PEN.

SPECIFICATION forming part of Letters Patent No. 684,685, dated October 15, 1901.

Application filed January 18,1901. Serial No, 431733. (No model.)

To all whom it may concern:

Be it known that I, Heinrich Gerst, a citizen of the United States, and a resident of New York city, county and State of· New 5 York, have invented certain new and useful Improvements in Fountain-Pens, of which the following is a specification.

This invention relates to a fountain-pen which is composed of a socket adapted to be io projected over a finger and of a pair of concentric conical pen-points by which light or heavy lines may be readily formed.

In the accompanying drawings, Figure 1 is a perspective view of my improved fountain15 pen, showing it in use. Fig. 2 is a longitudinal section thereof. Fig. 3 illustrates in section the component parts of the pen. Fig. 4 is an enlarged cross-section on line 4 4, Fig. 3; and Fig. 5, a longitudinal section through 20 the cap.

The pen is composed of a tapering socket a, which is open at the upper end and closed at its lower end. The socket a is embraced by an ink-well b, which gradually diverges 25 from the socket from top to bottom, so as to hold a sufficient charge of ink. From the lower end of the well b projects a flanged tubular collar c, adapted to receive two concentric conical pen-points d and e and the 30 usual cap f. The inner pen-point d is inserted with its upper end into the collar c, while the upper end of the outer pen-point embraces such collar, Fig. 2.

Each pen-point is formed of a tubular slitted upper section and of four (more or less) 35 nibs d' e', divided by slits and converging from such upper section to a cone-point. The upper slitted tubular sections serve to clamp the pen-points to the collar c, while the nibs permit the inflow of air and the out- 40 flow of ink.

In use the socket a is fitted over a single finger, Fig. 1, by the motion of which the writing is effected, so that much fatigue is saved. The ink flows from the well b through 45 the slits of the inner pen-point into the space between the pen-points and thence through the outer pen-point upon the paper. By varying the distance between the ends of the pen-points the pen may be readily adjusted 50 to'make light or heavy lines.

The inner slitted conical pen-point constitutes a free ink-feeder, which may be easily cleaned either by pressing it upon the paper or by drawing a wiper through it. 55