US546338A

US546338A - Inkstand

Info

Publication number: US546338A
Authority: US
Publication date: 1895-09-17
Anticipated expiration: 1912-09-17

Description

(No Modem 2 Sheets-Sheet 1. J. G. MILLER INKSTAND.

Patented Sept. 17,1895.

INVENTOH 7642203 (.7. $22M WITNESSES:

' ATTORNEY.

51.0. MILLER.

2 Sheets-Sheet 2.

INKSTAND.

(No Model.)

No. 546,338 Patented Sept. 17,1895.-

mmvron 1721:1405 6'. Jlfc'lP/n 22256, 4& ATTORNEY.

New S'rnrss A'liENT reread JULIUS C. MILLER, OF SYRACUSE, NEBRASKA.

lNKSTAND.

SEECIFIGATION forming part of Letters Patent No. 546,338, dated September 17, 1895.

Application filed March 23, 1895.

.To @135 whom it may concern.-

Be it known that I, JULIUS O. MILLER, a citizen of the United States, residing at Syracuse, in the county of Otoeand State of Nebraska, have invented a new and useful Inkstand, of which the following isa specification.

This invention relates'to that class of inkstands which embody a dome or reservoir and feeding-cup and which have valve or air-inlet devices at the top of the reservoir for controlling the admission of air to the latter.

The object of my improvements is to provide a simple inkstand of this class which will possess advantages in the point of effectiveness, positive operation, ease of adjustment, durability, and general eficiency.

In the drawings, Figure 1 is a perspective view of an inkstand embodying myimprovements. Fig. 2 is a vertical transverse sectional view of the same. Fig. 3 is a detail transverse sectional view taken through the valve devices at the top. Fig. at is a detail horizontal sectional view taken on the line 1 1, Fig. 3. Fig. 5 is a detail horizontal sectional view taken on the line 2 2, Fig. 3. Fig. 6 is a detail perspective view of the remov able cap-piece. Fig. 7 is adetail perspective view of the screw-valve.

Referring to the drawings,A designates the body of the inkstand, which is preferably formed of glass and comprises a flat base a, from which rises the dome or reservoir a. The flat base preferably has an annular flange or shoulder a? on its bottom, which supports the inkstand and raises the base from the surface upon which the inkstand rests. The base portion also preferably embodies an annular groove of, surrounding the dome or reservoir and forming an outside annular raised flange at, having its edge recessed or scalloped, as shown at or", to form securing-rests for pens or analogous articles. In the front face of the dome or reservoir is provided a vertical segmental concave recess a,- at the base of which is provided an outwardly-projecting concave cup (1 within the annular groove a and rising therefrom. Near the bottom of this cup and in the wall of the segmental concave recess a is formed a feed opening or perforation a through which the Serial No. 542,885. (No model.)

ink is fed from the reservoir to the dippingcup.

The top of the reservoir is preferably approximately flat and is provided with a central circular opening a, in which is permanently set a raised annular ring or flange 13, having a threaded opening I), surrounded by an annular edge Z), which is preferably inclined inwardly or slightly concaved.

C designates the cap-piece of the valve mechanism, which comprises a body or main portion 0, exteriorly threaded, as at c, to correspond to the threaded opening I), and a top portion 0 formiu g a flat circumferential projecting flange 0 preferably having milled edge 0 to facilitate the removal of the cappiece when desired. At the junction of the threaded portion c and the circumferential flange o the cap'piece is provided with a circumferential groove or recess 0 in which is set an annular flexible or elastic washer-ring or packing D, the inner edge (Z of said ring being received within the circumferential groove 0 while the outer portion of the ring is tightly clamped against the inclined or concaved annular edge I) by the circumferential flange 0 when the cap-piece is screwed down tightly into position, an air-tight joint being thus formed. From the top of the cappiece preferably projects a nut-shaped head 0 adapted to facilitate the setting or adjustment of the cap-piece. The cap-piece is provided with a centralvertical bore 0 of suitable diameter and interiorly threaded, as shown at 0 the threads preferably extending from a point a short distance above the bottom to near the top of the bore. The bore has a bottom 0 in which is formed a small eye or opening c opening into the reservoir and of a diameter considerably less than that of the bore. This improved cap-piece may, in its practical construction, have its main or body portion 0 and top portion 0 formed as a hollow cylindrical shell having a bottom 0 in which is formed the opening 0 and into this shell may be screwed or set a center piece embodying the nut-shaped head 0 and the bore 0', with bore portion resting tightly upon the bottom 0 and surrounding the opening 0 therein.

The construction just set forth is illustrated in the accompanying drawings, but it will be understood that the practical construction of the cap-piece to provide the es sential members or features herein described may be varied as desired.

0 designates an air-inlet channel or opening extending from the top of the cap-piece into the bore 0 This channel is preferably formed by a diagonal perforation running from about the base of the nut-shaped head to a point near the bottom of the threaded portion of the bore 0 In the bottom of the bore is preferably set a Washer-block or bushing E, inwhich is also formed the opening 0 This bushing may be approximately cup-shaped, and the bottontof the cappiece 0 may be correspondingly formed, if desired, to neatly accommodate this bushing.

F designates the valve proper, which comprises a stem f and a projecting head f, having a milled edge f The main portion of the stemfis threaded, as at f corresponding to the threaded bore. Below this threaded portion f the stem of the valve is reduced in diameter and is smooth, as shown at f, and from this smooth reduced portion projects a point f of less diameter, this point being adapted to be seated in the corresponding opening 0 The end of the point f is preferably of conical shape, as shown at f. The annular shoulder f formed by the bottom of the portion f of the stem, is adapted to be seated against or rest upon the bushing E when the valve is closed.

It will be noted that my improved inkstand embodies in its top mechanism only screwvalve devices, which insures a more effective operation, enables the more convenient and accurate adjustment or removal of the valve devices, and obviates the use of spring or similar mechanisms, which are apt to become clogged or imperfect in operation as an airinlet valve.

The operation and advantages of my invention will be readily understood. The dome or reservoiris adapted to be effectively closed at the top by the screw-valve mechanism, so that the ink is held in the reservoir by the vacuum therein and is adapted to be fed to the dipping-cup by the admission of air through thevaive. hen the screw-valve F is screwed tightly down, the reservoir is perfectly closed against the admission of air. hen it is desired to admit air to the reservoir, the screwvalve F is raised, so that the air in the bore surrounding the smooth reduced portion f of the stem of the Valve, which has been fed from the air-inlet 0 may pass into the reservoir.

I claim as my invention- 1. An inkstand of the class described, comprising the cap-piece having the threaded bore and bottom opening and provided with an air-inlet running from the outside of the cappiece to said bore, and the screw valve fitting in said bore and having the point corresponding to the bottom opening, substantially as and for the purpose set forth.

2. An inkstand of the class described, comprising the cap-piece havingthe threaded bore and bottom opening and provided with the air-inlet running from the outside of the cappiece to said bore, and the screw valve embodying the threaded stem, the smooth re duced portion below the threaded portion, and the point projecting from the reduced portion, substantially as and for the purpose set forth.

3. An inkstand of the class described, comprising the threaded cap-piece having the threaded bore formed with a bottom in which is provided the opening or perforation, said cap-piece being provided with the diagonal air-inlet channel or perforation running from the top diagonally to the threaded bore, the washer-block or bushing at the bottom of the bore, and the valve embodying the threaded stem and the smooth reduced portion below the threaded portion forming a shoulder or bottom from which projects a point, substantially as and for the purpose set forth.

4. An inkstand of the class described, comprising the dome or reservoir having the raised annular ring or flange at its top provided with a threaded opening, a cap-piece having an exteriorly -threaded body portion fitting said ring and provided with a threaded bore having a bottom opening and with an air-inlet or channel entering said bore, and the valve having a threaded stem and a projecting point corresponding to the bottom opening, substantially as and for the purpose set forth.

5. An inkstand of the class described, comprising the dome or reservoir h aving the raised annular ring or flange at its top provided with a threaded opening surrounded by an annular edge, I), the cap-piece having an eXteriorlythreaded body fitting said ring and a circumferential projecting flange corresponding to the edge I), said cap-piece being provided with a threaded bore having a bottom opening and with an air-inlet or channel entering said bore, and a valve having a threaded stem and projecting point, substantially as and for the purpose set forth.

6. An inkstand of the classdescribed, comprising the dome or reservoir having the raised annular ring or flange at its topprovided with a threaded opening surrounded by an annular edge, 17', the cap-piece having the exteriorly-threaded body fitting said threaded opening and the circumferential projecting flange corresponding to the annular edge I), the ring or washer boundbetween the edge Z) and the circumferential flange, said cap-piece being provided with a threaded bore having an airinlet or channel, and the threaded valve stem Working in said bore, substantially as and for the purpose set forth.

7. An inkstand of the class described, comprising the dome or reservoir having-an annular ring or flange at its top provided with a threaded opening surrounded by an annular edge, the cap piece having an exteriorlythreaded body fitting said threaded opening and a circumferential flange corresponding to said annular edge, the cap-piece being pro vided with a threaded bore having a bottom in which is formed an opening and with an air-inlet or channel entering said bore, a ring or washer arranged under said circumferential flange, and the valve provided with the threaded stern fitting said bore and with a reduced portion below the threaded portion from which projects the point, substantially as and for the purpose set forth.

8. An inkstand of the class described, C0111- prising the dome or reservoir having the raised an nnlar ring or flange at its top provided with a threaded opening surrounded by an annular edge, 17, the cap-piece having an exteriorlythreaded body fitting said opening and a circumferential projecting flange corresponding to the edge I), the cap-piece being provided with a threaded bore having a bottom in which is formed the opening or perforation and having the air-inlet or channel extending diago-'