US153809A - Improvement in inkstands - Google Patents

Description

B. w. CONRUY.

Inkstands.

4Patented Aug. 4,1874.

Nh Ln THE GRAPHIC OG PHDTC LlTH,398-4l PARK PLACE, N.Y.

UNITED STATES PATENT OFFICE.,

BARTHOLOMEW W. CONBOY, OF ST. CLAIR, MICHIGAN, ASSIGNOR TO HIM- SELF AND CHARLES D. SEELY, OF SAME PLACE.

IMPROVEMENT IN INKsTANDs.

Specification forming part of Letters Patent No. 153,809., dated August 4, 1874; application led February 16, 1874.

To all whom it may concern: Y

Be it known that I, BARTHOLOMEW W. CQNROY, of St. Clair, in the county of St. Clair and State of Michigan, have invented an Improved Inkstand, of which the following is a specification:

The nature of this invention relates to an improvement in that class of ink-vessels which are inserted or embedded in the tops of schooldesks; yand has for its object to so construct and arrange the ink receptacle as that it shall be inaccessible to the scholar, and can be closed up tightly to prevent evaporation and the access of dust, as more fully hereinafter set forth.

Figure 1 is a plan of the well as placed in a school-desk. Fig. 2 i-s a vertical section on .fr w. Fig. 3 is an elevation 'of the upper part of the metallic casing. Fig. 4t is a plan of the bottom part or nut of the casing.

In the drawing, A represents a portion of a desk-top having a hole bored through it to receive a cast-metal cylinder, B, open at the bottom but closed at the top, which is also flanged. The side of the cylinder has a stud, a, which projects into a vertical groove in the wall of the bore through the desk to prevent the casing from being turned. The top of the case has a sunken circular recess with a hole, b, through it, and a disk, d, is pivoted in the center also having ahole, b', through it, which may be brought coincident with the hole b by rotating the disk, to permit a pen to be introduced into the cavity of the casing. `c is a stud projecting from the top into a circular slot in the disk to arrest the movement of the latter beyond what may be necessary to disclose or cover the hole b. B is the bottom of the casing, in the form of a screw-cap, provided with two internal studs, c, which engage with two spiral grooves, f, formed in thelower outer wall of the casing B, whereby the cap may be screwed upon the lower end of the cylinder to close it. For this purpose the bottom of cap B is cast with a square or hexagonal projection, g, at the bottom to permita wrench to be used to screw the cap on so tightly as to prevent its detachment by mischievously-disposed boys, of which more or less are to be found in every school. Aleather washer, h, is interposed between the top edge of the nut and the bottom of the desk to prevent the access of the dust to the interior, also the leakage of ink in case the glass bottle should freeze and burst during severe cold weather. C is a cylindrical glass ink-well placed within the casing B, and is supported by a spiral spring, j, interposed between it and the bottom of the cap. A washer, ,of leather or rubber is interposed between the top of the ink-well and the under side of the cap of the casing B, against which it is pressed up by the spring j, which thereby prevents the access of dust, and, when the cap-disk is closed over the hole b, the air is excluded from the ink, and its evaporation prevented. v

It will be seen that the ink-well is not only protected from damage by accident or otherwise, but without a suitable wrench the scholar can have no access to it. The ink-well is also protected from i dust, and evaporation prevented.

What I claim as my invention, and desire .to secure by Letters Patent, is-

The combination of the casing B B', ink-well C, rotating covering or disk d, studs c e, spiral grooves ff, washers h c', and spring j, substantially as and for the purpose set forth.

BABTHOLOMEW W. CON ROY. Witnesses:

A. A. OAELETON, FEED H. BLooD.

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