Improvements in Water Bottles and Means for Stoppering the same.
Year: 1890

page_text: Date of Application, 14th Apr., 1890
Complete Specification Left, 14th Jan., 1891-Accepted, 14th Apr., 1891
PROVISIONAL SPECIFICATION.
Improvements in Water Bottles and Means for Stoppering
the same.
DAVID NELSON, Kingswear, Devon, Diver, do hereby declare the nature of this
invention to be as follows:-
My invention relates to an improved india rubber hot water bottle also an improved
screw and stopper for same which have a screw formed inside the mouth or neck the
stopper being inserted from the outside.
In the first mode of applying my invention I take calico or any suitable material
and coat with india rubber cement and cut into plies to form the outside of water
bottle I have felt coated on both sides with cement I cut into strips and place round
outside edge of one piece cemented calico this will form the edge of water bottle I
now place a piece of any calico in the middle of part that has the felt on it and place
the two pieces cemented calico together and roll or press down.
I now bind and sew all round leaving the mouth or neck part open I sew same
width as inner edge of felt I now turn inside out by neck part I have any suit-
able arrangement to place inside to keep same into proper shape and cover over
both sides with india rubber of a suitable thickness and quality I cover over this
india rubber, with butter cloth or strips of calico to strengthen-same I now turn to
right or former side I have water bottle ready to have screw fixed in I have a
mandrill made from tin or any suitable material and I have groves or screw threads
formed on same one or more coarse threads 1 now cover mandrill with what is
known as vulcanite or hard india rubber or any of its substitutes about one eighth
inch thick the top part I may put soft india rubber with the usual vulcanizing
compounds all well known to manufacturers of india rubber I place the covered
mandrill inside of bottle and lapp well with calico or mould and vulcanize in the
usual way.
Remove the lappings or mould and screw out mandrill when a screw or
thread will have been formed inside the mouth or neck of water bottle I now make
a stopper of india rubber or any of its compounds or substitutes or metal I prefer
a mixture of shallak rosen &c. in varied proportions mould to taper so as to fit the
inner diameter of thread of screw formed in bottle mouth or neck.
This stopper
has a collar or head formed upon it groved or milled to take hold of also screw or
thread. This may have an india rubber or elastic washer on it the stopper being
inserted and turned in the direction of screw thread in bottle neck being now
screwed down a perfectly air tight joint is made between the top of bottle mouth and
collar or head of stopper.
This improved screw or stopper can be applied to any india rubber bottle or
vessel either before or after being vulcanized or the part with screw or thread can
be formed and vulcanized before being put into water bottle.
Dated this the 14th day of April 1890.
COMPLETE SPECIFICATION.
Improvements in Water Bottles and Means for Stoppering
the same.
DAVID NELSON, Kingswear, Devon, Diver, 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 :-
My invention relates to an improved india rubber hot water bottle also an

page_text: improved screw and stopper. In the first mode of applying my invention I take
sheet of india rubber and form a water bottle (Fig. 1); I have a metal mandril
with screw or thread cut on same (Fig. 2) I cover this first with hard india
rubber and then give it a covering of soft india rubber on top of hard after which I
insert it into neck of bottle (Fig. 1) lap calico around outside of neck and vulcanize
in the usual way well known to all manufacturers of rubber goods I then screw out
the mandril and remove the calico which leaves me a screw or thread inside neck
of bottle (Fig. 3). I now make a stopper (Fig. 4) of hard india rubber or any of
its compounds or metal. I mould it to taper so that it will fit the inner diameter
of neck of bottle and which when screwed into it will make the bottle perfectly
water tight.
The screw or thread (Fig. 3) can be formed and vulcanized before being put into
neck of bottle hence it and the stopper (Fig. 4) can be applied to any india rubber
bottle or vessel.
The method of forming the bottle described in the Provisional Specification
(pages 1 & 2) has been abandoned.
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 :-
1st. Improved means of forming screw or thread inside neck of water bottle.
2nd. Improved stopper for water bottle.
Dated this 14th day of T1001