US 1188394 A
Description (OCR text may contain errors)
APELlCATlON FILED SEPT. 7, 1912.
1,188,394. Patented June 27,1916.
ATTORNEYS THE COLUMBIA PLANDGRAPH co, WASHINGTON, D. c.
Specification of Letters Patent.
Patented June 27, 1915.
Application filed September 7, 1912. Serial No. 719,130.
T 0 all whom it may concern:
Be it known that 1, MICHAEL Bnnws'rmn, a citizen of the United States, and a resident of the city of New York, borough of Manhattan, in the county and State of New York, have invented a new and Improved Fountain-Pen, of which the following is a full, clear, and exact description.
This invention relates to stationery appliances, and particularly to fountain pens or the like, and it has for its primary object the provision of an implement of the character set forth which is more convenient for use than ordinary pens and one which will insure a practically uniform flow of ink.
A further object of the invention is to provide a pen reservoir which is-adapted to retain the sediment or the like which would interfere with the proper operation of the device.
The foregoing and other objects of this invention will hereinafter be more fully described and claimed and illustrated in the drawings accompanying this specification in which like characters of'reference indicate corresponding parts in all the views, and in which Figure 1 is a longitudinal section of a fountain pen made in accordance with this invention and in the writing position, Fig. 2 is a tranverse section on the line 22 of Fig. 1; Figs. 3 and 4; are similar views on corresponding lines; and Fig. 5 is'a transverse section on the same line as Fig.4,
but viewed in the opposite direction.
Referring particularly to the drawings I show at 10 a handle which is hollow, and thereby provides a main reservoir 1O and an auxiliary reservoir or duct 10 for the supply of ink. It will be observed that the reservoir 10 holds the main body of ink in the hollow handle and within the palm of the hand. The duct 10 serves as a passageway for the ink from the main reservoir to the feeding devices, and said duct being of small transverse dimension holds but a small quantity of ink comparatively. The advantage of this peculiar construction is that the main body of ink does not act to' force the ink through the feeding devices except as influenced by the small quantity of ink in the auxiliary reservoir or duct. In other words, I am able to secure a substantially uniform flow of ink irrespective of the quantity of ink within the pen. Connected to the open end of the handle in any convenient manner as by means of screw threads 11 is a socket member 12 which has a cavity 13 lying directly opposite the extreme end of the handle. The socket has an interior thread at 1st and also a smooth cylindrical portion 15 adjacent its outer end. A plug 16 which carries the feeder 17 is screw threaded into the socket at let. The inner end of the plug is adapted to project into said cavity 13. A disk 18 having a plurality of minute marginal perforations 18 is held against the open end of the handle adjacent said cavity by means of the socket, the purpose of the holes or perforations 18 being to feed the ink slowly and gradually from the pocket 10 intothe cavity 13 while the bulk of the ink is retained by said disk.
The feeder 17 comprisesa finger opposite which the pen point 19 is held in any usual or preferred manner by means of the socket 12. Extending longitudinally through or along the feeder from the cavity 13 outward into communication with the pen point isa groove or duct 20 which may be of any suitable form but preferably which is arranged centrally of theplug at its inner end and which is inclined upwardly toward the pen point where it comes into direct communication with said pen point. As shown in Fig. 3 there is arranged on each side of the duct 20 a longitudinal groove 21, said grooves constitutlng means for retaming a limited amount of ink and at the same time preventingdripping of the ink from the pen point while in use. The disk 18 has a projection 22 on the side adjacent the cavity 13 and'directed toward the inner end of the duct 20, whereby when'the plug is screwed up against the disk, said projection will enter the duct, sealing the same and preventing any possibility of the flow of theink through the duct and from the pen while the pen is being carried in the pocket. The disk also is preferably conveX on the side just referred to, and fits snugly into a corresponding concavity in the inner end of theplug. I
In operation the plug will be unscrewed away from the disk, as shown in Fig. l, which will permit a proper amount of ink to How from the handle into and through the cavity 13 and thence through the duct 20. It is to be understood, of course, that the fit between the plug and the socket will be tight enough to prevent leakage between these two parts. A considerable quantity of ink may be carried in the main reservoir 10 and under certain conditions a portion of such ink, upon tipping the pen, may be delivered into the auxiliary reservoir 10 from which it Will flow through the disk holes. Any heavy particle, such as sediment or the like, in the, main body of the ink, will remain in the reservoir at the bottom of the handle. The handle is made of such size and form as to conform to the palm of the writers hand which renders it very convenient and easy. lVhen not in use the plug will be turned so as to impinge against the disk, stopping the flow of ink as above described. If desired, a cap 23, indicated in dotted lines, may be secured in any well. known manner upon the outside of the socket to protect the pen point while the implement is being carried.
As shown at 24 in Fig. l, I may employ a groove or air passage of relatively minute cross-sectional area, and for convenience such groove may be arranged along the thread 1% of the socket. lhe purpose of such roove is to provide an air cushion whereby the tendency to leakage along the joints between the socket and plug will be minimized.
The several parts of the device may be made of any suitable materials, and. the relative sizes and specific forms thereof may be varied to a considerable extent Without departing from the spirit of the invention W,
Having thus described my invention, what I claim as new and desire to secure by Letters Patent is In a fountain pen, the combination of a hollow handle constituting a reservoir, a socket connected to the open end of the handie, said socket having an enlargement at one end adjacent the handle end and a threaded portion adjacent thereto, a disk having a central projection pointing downwardly into the socket enlargement and a plurality of marginal perforations between the end of the handle and said socket, and a feeder plug fitted. into said socket and having threaded engagement with the threaded portion thereof, said plug having a minute central bore, the inner end of the plug being adapted to impinge against said disk causing said projections to enter said bore, permitting free flow of the ink in small quantities when in use and serving to prevent the flow of ink when out of use.
In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.
Witnesses GEO. L. BEELER, PHILIP D. ROLLHAUS.
Copies of this patent may be obtained for five cents each, by addressing the Commissionerof Ritezits, Washington, D. C.