Improvements in Inkstands.
Year: 1889

page_text: Date of Application, 4th Fen., 1989
Complete Specification Left, 28th Oct., 1889-Accepted, 30th Nov., 1889
PROVISIONAL SPECIFICATION.
Improvements in Inkstands.
I, EDWARD THOMAS DARKE of 12 Pall Mall East, in the County of Middlesex,
Secretary of the Association for the supply of pure Vaccine Lymph, do hereby
declare the nature of this invention to be as follows
-
This invention has for its object improvements in inkstands.
To contain the ink I employ a vessel of glass or earthenware, preferably the former.
This vessel has a broad base and a central cylindrical cavity. At the top and around
the open mouth of the cavity a screw thread is formed. A motal cap screws on to
the thread around the mouth of the vessel and serves to clamp down on to it, a ring
of vulcanised in lia rubber and a metal washer which is insorted between the cap and
the india rubber. The vessel thus fitted receives a movable part or plug made of
glass. The lower part of the plug is cylindrical or somewhat faper and it passes down
through the india rabber ring into the vessel; the ring forming an air tight joint
around it. The plug is flanged at the top so that it may be easily held to move it up
or down through the india rubber ring. In the centre of the plug at the top a cup is
formed of dimensions suitable for conveniently dipping the pen.
From the bottom of the cup a passage descends to the lower end of the plug. The
action then is that the ink contained in the cylindrical cavity, is displaced when the
plug is thrust in and rises into the cup.
To this mechanical action however I lay no claim; my invention applies to the
construction of the inkstand. The construction above described may be varied by
substituting an india rubber cap for the metal cap, and washer and india rubber ring
previously described and the inkstand then consists of three parts only.
Dated this 4th day of February 1889.
CARPMAEL & Co.,
Agents.
COMPLETE SPECIFICATION.
Improvements in Inkstands.
I, EDWARD THOMAS DARKE of 12 Pall Mall East, in the County of Middlesex,
Secretary of the Association for the supply of pure Vaccine Lymph, do hereby
declare the nature of this invention and in what manner the same is to be
performed to be particularly described and ascertained in and by the following
statement:-
This invention has for its object improvements in inkstands.
To contain the ink I employ a vessel of glass or earthenware, preferably the former.
This vessel has a broad base and a central cavity. At the top and around the open
month of the cavity a screw thread is formed. A metal cap screws on to the thread
around the mouth of the vessel and serves to clamp down on to it, a ring of vulcanised
india rubber and a metal washer which is inserted between the cap and the india
rubber. The vessel thus fitted receives a movable part or plug made of glass or
earthenware. The lower part of the plug is cylindrical or somewhat taper and it
passes down through the india rubber ring into the vessel; the ring forming an air
tight joint around it. The plug is flanged at the top so that it may he easily
held to move it up or down through the india rubber ring. In the centre of the
plug at the top a cup is formed of dimensions suitable for conveniently dipping
the pen.
From the bottom of the cup a passage descends to the lower end of the plug. The
action then is that the ink contained in the cavity, is displaced when the plug is thrust

page_text: in and rises into the cup. To this mechanical action however I Lay no claim; my
invention applies to the construction of the inkstand. The construction above
described may be varied by substituting an india rubber cap for the metal cap,
and washer and india rubber ring previously described and the inkstand then consists
of three parts only.
In order that my said invention may be fully understood and readily carried into
effect will proceed to describe the drawings herennio annexed.
Figure is a vertical section of an inkstand and illustrates one form of my
invention.
Figure 2 is a vertical section of a part of an inkstand and illustrates the other
form of my invention.
Figure 3 is a plan with parts removed and partly in section of the inkstand shown
by Figure 1.
Figure 4 is a similar view of the portion of an inkstand shown by figure 2.
Figure 5 is a vertical section and Figure 6 is a plan of the Indin rubber cap of the
inkstand shown by figure 1.
is the ink container; in the form shown by Figure 1. it has a plain neck a²; in
the torin shown by figure 2 there is a screw thread a cut upon the neek and a seating
is formed in it for the india rubber ring b. is a metal washer resting on the
ring and d is a metal cap screwing on to the thread and compressing the
ring. In Figure 4 one ball only of the cap d'appears and the parts & and c are not
shown.
In Figure 1. a vulcanised india -ubler cape is sprung over the neck a and
the plug f passes down through the cap into the cylindrical cavity in the ink
container
A precisely similar plag is used in the inkstand partly shown by Figures 2 and 4.
This ping is made of glass or earthenware, it has a flange by which it is held to
thrust it down or to draw it up through the indin rubber cap or ring. „ƒ” is a passage
by which the ink rises through the plug and is a cup or receptacle for contrining
the ink into which the pen is dipped and its dimensions are such that it will contain a
suitable supply.
Having now particularly described and ascertained the nature of my said Inven-
tion and in what manner the same is to be performed declare that what I
claim is :-
r
1. An inkstand consisting of parts a bed and, substantially as described.
2. An inkstand consisting of parts ae and substantially as described.
Dnto this 921 1
EDW. T. DARKE.