US495460A - Peter d - Google Patents

Description

.P.D. HORTON. INKSTAND (No Model.)

No. 495,460. Patented Apr. 11, 1893.

II II I l-ll UNITED STATES PATENT OFFICE.

PETER D. HORTON, OF OAKLAND, CALIFORNIA, ASSIGNOR OF ONE-HALF TO SILAS R. OSGOOD AND ERNEST J. OSGOOD, OF SAME PLACE.

INKSTAN D.

SPECIFICATION forming part of Letters Patent No. 495,460, dated April 11, 1893.

Application filed July 27, 1892. Serial N- N m To all whom it may concern: taking a bite over or wrapping such edge with Be it known that 1, PETER D. HORTON, a a fillet of rubber or thread h and a perfect citizen of the United States, residing at Oakair tight connection is had.

land, in the county of Alameda and State of The hollow tube or pipe up through which California,have invented certain new and usethe ink flows to the well extends to near the ful Improvements in Inkstands, of which the bottom of the fountain and the ink can only following is a specification. be forced up in the well by pressure upon the Myinventiou relates especially toink-stands diaphragm or by dipping the pen down into for holding inks of all kinds employed in writthe well: in either case the ink will be forced Io ing, and has for its object the production of upward, but when the pressure is removed it a device wherein the ink is conveyed by atebbs back into the fountain or tube. mospheric pressure to an ink-well connecting In order to control the ebb and flow of the with the fountain or reservoir and returned ink from the fountain to the well I have deto the fountain at pleasure. I accomplish visedapeculiar valve which consists of a solid I5 this object by the means illustrated in the acstem or piston I, which passes through a percompanying drawings which form part of this foration in the flexible diaphragm near the specification and in which:- rim of the fountain and can be moved upward Figure l is a View in elevation of my imor downward, the lower end entering a tubuproved ink-stand. Fig. 2 is a view in vertilar guide J on the bottom of the fountain.

20 cal section. Fig. 3 is a front view of the ink- Between the ends of the piston is formed well, and Fig. 4 a view of the valve and pisan annular groove or concavity I and when ton removed. the stem or piston is pressed down to the limit The edge or rim of my ink fountain A is permitted by the guide J, air will pass under formed with a shoulder 13 and over the top of the diaphragm through the medium of the y 25 the fountain is stretched a flexible cover or groove and the fountain is charged with air. air compressor 0 such as leather or india rub- When the piston is drawn upward the edge her (the latter being however preferable) the of the perforation in the diaphragm will edge of which is turned down around the closely engage the piston below the groove flange of the fountain in which position it is and the air will be confined in the chamber 0 held in place by a fillet or band of rubber D between the diaphragm and contents of the by which an air-tight connection is made befountain and the connection between the pistween the fountain and compressor at this ton and opening will be rendered air-tight. point, and within the center of this com- In operation to force the ink from the founpressor or flexible diaphragm is placed the tain into the ink-well (the piston having been 3 5 ink-well. The ink-well is formed of hard rubpressed down to the limit permitted) raise the her or glass and consists in a cup E having a ink-well slightly with the finger which charges concave bottom and a hollow spindle or pipe the chamber under the diaphragm with air E connecting with the cup and cast integral and simultaneously raise the piston above with it, but smaller so as to form a shoulder this position and then press down slightly 0 G. The diaphragm is perforated to receive upon the ink-well when immediately it will the ink-well, and near the base of the cup is be filled and remains in that condition until formed a square groove H. The edge of the the well is exhausted of ink; a sufficient quanfiexible opening in the diaphragm usually fits tity of ink however can always be obtained into the groove in such a manner as to make by dipping the point of the pen into the ink- 45 the connection air and water tight. This can well as the slightest pressure with the pen be rendered certain however by inserting the point will cause the ink to rise in sufficient ink-well in the diaphragm before the latter is volume to answer all purposes of writing. To stretched over the ink fountain, and by let discharge the ink-well of its contents press ting the edge It around the hole or opening the piston down to its limit and the ink will 50 drawn into the groove as seen in Fig. 2, then flow back to the fountain, then draw the pisroo ton upward away from this position and the ink-stand will be sealed for a desired period of time or until the point of a pen is inserted in the well as above stated. By this construction the ink will always be in a clean and fresh condition and need not be replenished for a long period of time.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is

1. In an ink-stand of the construction described, the combination with the stand having a flexible cover, and an ink-well supported by said cover, the latter having a perforation; of a rod fitting tightly in said perforation and extending to the exterior of the inkstand, the body of the rod having an annular groove smaller than the normal size of said perforation, as and for the purpose set forth.

2. In an ink-stand of the construction described, the combination with the stand having a flexible cover, and an ink-well supported by said cover, the latter having a perforation; of a rod fitting tightly in said perforation and extending to the exterior of the inkstand, and a tubular guide within the stand and into which the lower end of the rod slides vertically, the body of the rod having an annular groove smaller than the normal size of said perforation, as and for the purpose set forth.

3. In an ink-stand of the construction described, the combination with the stand a portion of whose top is closed-by a flexible cover having a perforation, and the ink-well comprising a cup with a depending pipe leading into the interior of the stand; of a tubular guide within and on the bottom of said stand, and a cylindrical rod its lower end seated within said guide, its body. extending through and fitting closely in said perforation, and its upper end being exterior to the stand, the body of said rod having a groove whereby it is smaller than the normal size of said perforation and said groove being so located as to stand within the perforation when the rod is fully seated in said guide, all as andfor the purpose set forth.

In testimony that I claim the foregoing I have hereunto set my hand and seal.

PETER D. HORTON. [L. s.]

Witnesses:

G, W, M. SMITH, CHAs. E. KELLY.

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