An Improved Water-tuyere or Twyer for Furnaces, Forges, and the like.
Year: 1892

page_text: Date of Application, 10th Sept., 1892
Complete Specification Left, 9th June, 1893-Accepted, 15th July, 1893
PROVISIONAL SPECIFICATION.
An Improved Water-tuyere or Twyer for Furnaces, Forges, and
the like.
1, JOHN PARKER, of 13, Clyde Terrace, Bradford, in the County of York,
Engineer, do hereby declare the nature of this invention, to be as follows:-
This invention relates to that class of tuyeres, twyers, or tweers which have an
outer case or envelope, between which and the central injection tube or pipe a
stream of water is caused to circulate.
Hitherto such water-tuyeres have been made mostly of wrought iron, and the
central tube or pipe has been screw-threaded at the fore part of the nozzle to take
into the threaded front portion of the outer case or envelope.
Now according to my invention I construct the central tube or pipe and the
outer case or envelope of my improved water-tuyeres all in one piece of metal,
preferably cast iron or steel. The front portion of the tuyere is formed into a
nozzle for insertion into the furnace or the like, and the hinder part has screw-
threaded apertures, cast or otherwise formed therein, to take the inlet and outlet
pipes from the tanks or containers. The hinder portion of the tuyere may be
formed with a cap or cover for the ends of same, and be provided with the screw-
threaded ingress and egress holes, instead of being cast in a piece with the rest of
the tuyere.
Water-tuyeres manufactured according to my invention last much longer than
heretofore, while the cost of production is considerably lessened.
This Oth do of Santambor 1805
CROSSLEY & Co.,
72, New Market Street, Bradford, Yorks., Agents.
COMPLETE SPECIFICATION.
An Improved Water-tuyere or Twyer for Furnaces, Forges, and
the like.
I, JOHN PARKER, of 13, Clyde Terrace, Bradford, in the County of York,
Engineer, 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 relates to tuyeres which have hitherto been made by forging, but
the object of my invention is to cast them in one piece, either in iron or steel
without any joints, thus preventing any liability of breakage which often takes
place with forged tuyeres which are made in separate parts. The cost of casting
is considerably less than forged tuyeres, whilst its simplicity of construction and
more uniformity of thickness of metal makes it more durable than those made of
forged wrought iron.
In the accompanying drawings
Fig. 1 is an elevation of one of my improved tuyeres, and Fig. 2 is a longitudinal
section of same, where A represents the space for water, and B a conical tube for
the passage of heated air or gases.

page_text: 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 :-
The manufacture of tuyeres of cast iron or steel in contra-distinction to forged
tuyeres substantially as described and shewn herein.
Dated this 8th day of June 1893.
TASKER & CROSSLEY,
Halifax, Agents.