IMPROVEMENTS IN ATTACHING NON-CONDUCTORS TO THE HANDLES OF VESSELS FOR CONTAINING PROVISIONAL SPECIFICATION CONTAINING HOT LIQUIDS SUCH AS TEAPOTS, AND SIMILAR VESSELS
Year: 1882

page_text: LETTERS PATENT to Thomas Brooke and John Brooke, both of Sheffield, in
the County of York, Manufacturers, for an Invention of "IMPROVEMENTS IN
ATTACHING NON-CONDUCTORS TO THE HANDLES OF VESSELS FOR CONTAINING
PROVISIONAL SPECIFICATION left by the said Thomas Brooke & John.
Brooke at the Office of the Commissioners of Patents on the 29th March
1882.
THOMAS BROOKE, and JOHN BROOKE, both of Sheffield in the County of York,
Manufacturers. "IMPROVEMENTS IN ATTACHING NONCONDUCTORS TO THE HANDLES
OF VESSELS FOR CONTAINING HOT LIQUIDS SUCH AS TEAPOTS, AND SIMILAR
VESSELS."
Our Invention relates to a method of attaching nonconductors to the handles of
teapots, coffee pots, kettles, hot water jugs, and other similar vessels which are
intended to contain hot liquids, the objects being to make a perfectly secure joining
of the handle to the vessel, in a simple and economical manner, and to prevent the
heat passing to the handle of the vessel. And we accomplish these desirable
objects in the following manner. In attaching nonconductors to the handle of a
teapot (for example,) we form or shape out of the solid piece of ivory or other
nonconducting material a disc in the centre of a short right and left hand screw,
and make correspondingly tapped or screwed holes in both the handle and the
socket of the teapot.
The screwed ends of the nonconductors are then entered in the screwed holes of
the handles and the sockets and on turning the nonconductor round, the operation
of the right and left hand screws draw the two parts together simultaneously and
makes a perfect and secure joint that cannot possibly come loose-if desirable we
use a cement to give additional security.
.
A modification of the above plan may be carried out by attaching a screwed
washer having a rotatory movement, to either the handle or the socket-so that
when the nonconductor (which in this case need not have the screws made with
reverse threads,) is firmly screwed into either the handle or the socket (as the case
may be) it may be attached to the other part by screwing or revolving the
rotatory washer.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Thomas Brooke & John Brooke in the Great Seal Patent Office
on the 15th July 1882.
THOMAS BROOKE and JOHN BROOKE, both of Sheffield in the County of York.
"IMPROVEMENTS IN ATTACHING NON-CONDUCTORS TO THE HANDLES OF VESSELS
FOR CONTAINING HOT LIQUIDS, SUCH AS TEA-POTS AND SIMILAR VESSELS."
The said Invention relates to a method of attaching nonconductors to the
handles of such articles as tea and coffee pots, kettles, hot water jugs, and other
similar vessels which are intended to contain hot liquids, the object of our
Invention being to attach the various parts, (namely the vessel, the conductor, and
the insulated handle) together in a simple and endurable manner, and without the
use of pins which soon become loose and defective.
In carrying out one method of our Invention as applied to a teapot handle for
example we turn or otherwise form out of a solid piece of ivory or other non-
conducting material-a non-conductor consisting of a central disc or plate with a
short right hand screw projecting from its centre on one side, and a corresponding
left hand screw projecting from the other side. The sockets and ends of the
detached handle are provided with correspondingly screwed holes into which the
nonconductor will fit.
When the ends of the screws of the non-conductor are entered into the screwed
holes in the sockets and in the handles-and are turned round by means of the
disc, the operation of the right and left hand screws of the nonconductor draws
the several parts together simultaneously, and secures them firmly together.
A modification of the above described arrangements may be made by constructing
the non-conductor with the screws of corresponding right and left hand threads
(and not necessarily reversed threads as before described) and by attaching a
rotating nut to either the socket or the handle.
A second modification is to make the right and left hand screw separate from the
disc and having a square or other suitable irregular shaped centre between the two
screwed ends The disc is provided with a centre hole corresponding to the said
centre of screw so that it can be used to turn the screw round and screw the parts
together.
We will now refer to the Sheet of Drawings in which the same letters of
reference denote corresponding parts in all the Figures.
Figure, 1 represents a tea pot handle and sockets shown partly in section and
fitted with nonconductors attached thereto according to the first part of our
Invention Figure, 2 shows the parts separated. A is the non-conductor made
out of a solid piece of non conducting material, such as ivory. B is the dise
portion, C is the left hand screw, D is the right hand screw E, E, are the
correspondingly tapped ends of the socket F and the handle G.
Figures 3, and 4, represent the first described modifications of our Invention in
which a rotating nut is secured to the socket of the pot or other vessel.
In this arrangement the non-conductor may be first screwed tightly in the
handle and afterwards drawn into the nut instead of simultaneously as with a
right and left hand screw, a projecting collar H is soldered into the socket as
shown by the dotted lines and is tapped to receive a screw I.
The rotating nut J fits over and turns upon the collar H and is secured to it by
the head of the screw I.
Figures 5, 6, and 7 represent the second described modification of our Invention
in which the disc and the screw are made separately so that a disc of pearl, and a
screw of other material may be used which in many cases would be very desirable.
Figure 5, is the disc with a square hole L through its centre.

page_text: Figure 6, is the screw with a square centrepiece corresponding with the hole
in the disc.
Figure 7, is the nonconductor complete.
Having now described and fully ascertained the manner in which our Invention
may be carried into practice, what we consider to be novel and original and
therefore claim as the Invention secured to us by the hereinbefore in part recited
Letters Patent is―.
First, The improved methods of attaching and applying nonconductors to the
handles of teapots or other similar vessels, used for containing hot liquids-
substantially as described in the foregoing Specification and as illustrated in
Figures 1 to 7 of the annexed Drawings.
Second, The use of nonconductors for teapots and similar vessels provided with
right and left hand screws for the purpose specified and substantially as described
and illustrated or any mere modification thereof.
Thirdly, Attaching nonconductors to the handles of teapots and other similar
vessels for containing hot liquids by means of rotating nuts fastened to the
sockets or handles-substantially as herein before described and illustrated in
Figures 3, and 4, or any mere modification thereof.
In witness whereof we the said Thomas Brooke and John Brooke have
hereunto set our hands and seals this Fourth day of July in the year of
our Lord One thousand eight hundred and eighty two.
THOMAS BROOKE. (L.S.)
JOHN BROOKE.
(L.S.)