US227416A

US227416A - cross

Info

Publication number: US227416A
Authority: US
Publication date: 1880-05-11
Anticipated expiration: 1897-05-11

Description

v -A. T. GROSS.

Stylographio Fountain-Pen.

Patel fled May 11 INVENITGF! WITNESSES.

N.PETERS, PHDTO-LITHOGRAFHER. WASHINGTON, 0 C.

Mrs STATES STYLOGRAPH IC SPECIFICATION forming part of Letters FOUNTAIN-PEN.

Patent No. 227,416, dated May 11, 1880.

Application filed October 17, 1878.

To all whom it may concern:

Be it known that I, ALONZO T. CROSS, of Providence, in the State of Rhode Island, have invented an Improvement in Stylographic Fountain-Pens, of which the following is a specification.

My invention relates to that class of fountain-pens in which a tubular point and central spindle are used; and it consists, essentially, of the combination of a needle tipped with some hard substance, such as iridium, and a tubular point of ordinary soft metal, when the needle is so adjusted in relation to the point that it shall in writing, always project sufficien tly through the tubular point to bear upon the paper.

Heretofore, as is well known, iridium and similar hard substances have been used to tip the points of pens, and the tubular points of fountain-pens, as well as the needles or spindles, have been tipped with such substances.

For practical use, doubtless, a fountain-pen provided with a tip of iridium both upon the needle and the tubular point through which the needle passes, if perfectly made, would be perfectlyserviceable; but in the manufacture of such pens it is found to be a matter of considerable expense, and to require great care and the most skilled labor, to tip the tubular points with a material like iridium. Such metal is not only difficult to bore for so fine a spindle as that used in fountain-pens, but it also requires great care to grind off the outside to give the point of the tube, after tipping, a proper shape and size.

I have discovered that by tipping the spindle with. iridium or similar hard substance, and so adjusting this spindle to the tubular pen-point that it shall, when in use, project always far enough to bear on the paper, there need be no such hard tipping for the tubular point, but that in use this tubular point, when made of soft metal, will wear into proper conformity to the spindle, and, further, that great saving in the manufacture is also thereby effected.

I have illustrated the form of pen to which I apply my invention in the accompanying drawings, in which- Figure 1 is a longitudinal section of a fountain-pen to which my improvement may be applied. Fig. 2 is an enlarged sectional view of the writing-point.

In the drawings, A is the outer case; B, the vent-cap; O, the air-tube, attached to the upper end of the case A; D, the spindle, permanently attached to the lower end of the airtube.

The point-section E screws into the end of the case A, so that the point d of the spindle D, which is tipped with iridium or any suita ble hard substance, may project slightly in front of the end F of the tube G.

The iridium tip cl constitutes an indestructible central guide for grinding the end of the tube, so as to bring it in proper adjustment to the end of the spindle D. The tip cl being hard and the tube G soft, the movement of the tube over the surface of an oil-stone, even by an unskilled workman, will cause the tube to be readily ground down to a true and positively exact adjustment with the end of the spindle; and as the ordinary wear in writing is but a slow continuation of this grinding action, the original excellence of the writing qualities of the pen-point will be preserved indefinitely.

The end F of the tube will always wear to the true angle at which it is usually held by the writer, and will thus accommodate itself to the special peculiarities of every person, so as to produce the very best results in any case.

When the end of the tube G has been adjusted by use in the hands of any one person it may be made to adapt itself to a more upright position or angle of holding by simply drawing back the end of the spindle by suitable means, so that the end of the tube may be again worn down to the proper angle or adjustment required; but if the pen is to be held at a less angle, then no new adjustment of the spindle is necessary, for the reason that the continued wear of the tube will make the proper perfect adjustment for the supposed new conditions.

Thus by my improvement this class of fountain-pen may be more cheaply made with a fine point for writing without incurring the liability of the gradual production of a scratchy or imperfect action by use, as in pens heretofore constructed.

I do not claim the tipping either of the spin- 5 dle or tubular point with hard substances; but

What I do claim is In a stylographic fountain-pen, a spindle having a tip of iridium or like hard substance in combination with a tubular point of comparatively soft metal, the spindle being ar- 10 ranged in the point to project slightly and bear upon the paper, substantially as set forth.

ALONZO T. GROSS. Witnesses:

SooRATEs SOHOLFIELD, JOSEPH J. SoHoLmELD.