Year: 1887

page_text: Date of Application, 5th May, 1887
Complete Left, 6th Feb., 1888
Complete Accepted, 9th Mar., 1888
I, ROBERT WILLIAM MARTIN of 44 Portland Street, Southport, in the County of
Lancaster, Draper, do hereby declare the nature of this invention to be as follows:
This invention has 'for its object 'the improvement of the ordinary safety or
unspillable inkpot, 'namely the pot with covered top having a funnel forming a part
thereof dipping down into the ink. The disadvantage of this ordinary type consists
in this that it is very difficult to wash out.
Now I form the pot with either the funnel or the top in a separate piece from the
bottom, and screwed to the 'bottom, with a ring of india rubber or equivalent material
between the two parts, which on screwing up is compressed. There are various
modes of accomplishing this, either screws internal and external respectively can be
formed on the two pieces and the two screwed together, or one can have a screw
attached to or formed in it, and the other have a separate flange sliding upon it
which is formed with a screw complementary to and filling the other.
This I prefer to actually screwing the 'top or lid round, as the latter plan
punish the india rubber severely and perhaps displace it. In place of a screw a
apt to
bayonet joint with sloping surfaces for 'the projections to slide in will do as well.
Dated this 4th day of Mom 1997
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool,
Agents for the Applicant.

page_text: COMPLETE SPECIFICATION.
66
Improvements in "Safety" or Unspillable" Ink Pots or Bottles.
I, ROBERT WILLIAM MARTIN of 44, Portland Street, Southport, in the County of
Lancaster, Draper, do hereby declare the nature of my 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 relates to improvements in the ordinary safety or unspillable inkpot,
namely, the pot with covered top having a funnel forming a part thereof, dipping
down into the ink. The disadvantage of this ordinary type consists in this, that it is
very difficult to wash out.
«
Now the object of my improvements is the construction of an unspillable" ink-
pot which shall be free from this disadvantage. I attain this object by forming the
pot with either the funnel or the top in a separate piece from the bottom, and screwed
to the bottom, with a ring of india rubber or equivalent material between the two
parts, which on screwing up is compressed. There are various modes of accomplishing
this. Some of these may be described by reference to the accompanying drawings:
in which,
Figures 1 & 2 are sectional elevations of my improved ink-pot, showing two
slightly different ways of uniting the parts thereof, and,
Figure 3 is an elevation of the same, partly in section, showing a modified way of
securing the parts.
In these, A is the funnel shaped top part, and B the bottom part of the ink-pot.
A & B are screwed together by means of an internal thread upon one part and an
external thread upon the other part. The threads may be formed upon the parts
themselves, but when the pot is of glass or earthenware, I prefer to form them on
separate metallic rings (a) and (b), whatever be the mode of fastening, a ring (()) of
india rubber or other flexible material is inserted between the faces of A & B to form
a joint. The rings (a) carrying the external threads are cemented or otherwise
secured to the body of one part A or B of the pot, preferably to the top part A. The
ring (b) carrying the internal thread may be secured to either part, preferably to the
bottom part B, as in Figure 1. Or it may be slipped loosely over either part,
preferably over the bottom part B as in Figure 2 where it is shown abutting against
a shoulder b¹ formed round the said part, I prefer this latter plan to the plan shown
in Figure 1, as the actual screwing of the top or lid round, is apt to punish the india
rubber (C) severely and perhaps to displace it. In place of a screw, a bayonet joint
such as is shown in Figure 3 might be used. Here projections (63) on the bottom
part B slide into sloping slots a' on the top part A or vice versa. It is obvious that
the joint between the parts A and B may be at any distance from the top or bottom
of the pot, or it may be at the top of the funnel itself.

page_text: Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what I
claim is :-
An unspillable ink-pot in which the top or funnel part is united to the bottom part,
by a screwed connection such as (a b), or its equivalent and rendered water tight by
a ring of flexible material inserted in the joint between the opposing faces of the said
parts, substantially as and for the purpose described.