An Improved Workmen's Flask or Can with Cup Combined.
Year: 1890

page_text: Date of Application, 25th Nov., 1890
Complete Specification Left, 24th Mar., 1891-Accepted, 2nd May, 1891
PROVISIONAL SPECIFICATION.
An Improved Workmen's Flask or Can with Cup Combined.
I, DAVID WELSH KERR, residing at Number 5 Queen Street, Dumfries, in the
County of Dumfries, Tinsmith and Gasfitter do hereby declare the nature of this
invention to be as follows:-
The invention has, for its object, the provision of a flask or can having a cup
attached to it, which can be used as a filler to the flask, or as a cup for drinking.
The flask or can is made of tin or sheet metal, and may be made of different
sizes, from a gill upwards.
The flask is of cylindrical shape, with a conical shoulder having a double brass
screw on top. The socket is soldered into the top of the flask, and the double
screw is soldered to the cup, or filler-the half of the screw being to the outside,
and the other half inside. When the outside half of the screw is screwed into the
flask, the cup is then used as a filler. When the cap of the screw is put on, it is
then used as a drinking cup. When the cup is inverted and the inside part of
screw is screwed into the flask, then the cap can be screwed down, making the
whole perfectly tight.
In the outside part of screw, there is a slot which is used as an outlet for air when
used as a filler, or, when the flask is being heated, it acts as an outlet for steam.
Dated this Twenty-first day of November Eighteen hundred and ninety.
DAVID WELSH KERR,
Tinsmith and Gasfitter.
COMPLETE
SPECIFICATION.
An Improved Workmen's Flask or Can with Cup Combined.
I, DAVID WELSH KERR, No. 5 Queen Street, Dumfries, County of Dumfries,
Scotland, Tinsmith and Gasfitter 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 :-
The invention has, for its object, the provision of a flask or can, having a cup
attached to it, which can be used as a filler to the flask or as a cup for drinking.
The flask or can is made of tin or sheet metal, and may be made of different
sizes from a gill upwards. The flask is of cylindrical shape with a conical shoulder
as shewn by Figure 3 on drawing having on top a double brass screw as shown full
size by Figure 1 on drawing. The socket A Figure is soldered into the top of the
flask Figure 3, and the double screw B Figure 1 to the cup or filler the half of the
screw being outside and the half inside. When the cap C Figure 1 is put on it
is then used as a drinking cup Figure 2; when the outside half of the screw is
screwed into the flask Figure 5, the cup is then used as a filler; when the cup is
inverted and the inside part of screw screwed into the flask Figure 4 the cap C can
then be screwed down making the whole perfectly tight.
In the outside part of screw there is a slot or hole D. Figure 1. which is used as
an outlet for air when used as a filler, or, when the flask is being heated it acts as
an outlet for steam.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed I declare that what I
claim is:--
1. The double screw at the top of the flask or can admits a second conical top

page_text: being attached which forms a very convenient cup or filler, the movable screw cap
being a complete stopper to the can.
2. The cap of the screw being movable when kept on the second top but removed
from the flask or can, forms a very convenient drinking cup.
3. The second top, with the cap of the screw removed and screwed invertedly to
the can forms a very convenient filler.
4. The slot or hole in the screw serves as an escape for the steam when the flask
or can is being heated and as an air escape when used as a filler and
5. The whole is a workmen's flask or can with a drinking cup or filler in a very
convenient form.
Dated this Twenty-third day of March 1891.
DAVID WELSH KERR.