Year: 1888

page_text: Date of Application, 27th Dec., 1888
Complete Specification Left, 11th Apr., 1889-Accepted, 14th Sept., 1889

page_text: COMPLETE SPECIFICATION.
mprovements in Furnaces for Heating, Forging, and Tempering for
Smiths' Use.
I, WILLIAM PERCY, of No. 80, North Side, Workington, in the County of
umberland, Blacksmith, do hereby declare the nature of this invention and in what
anner the same is to be performed, to be particularly described and ascertained
and by the following statement :-
The furnace, where this heating, forging, or tempering is carried on, is constructed-
brick work; and is furnished with a suitable flue J, and a compartment for the
ception of the fuel, or gas used in it. Throughout the entire length of the flue pass
rizontally two iron pipes, marked in the accompanying drawing, D, supplies the
ater necessary to keep the pipe at a suitable temperature; it is constructed with a
arp bend, resembling the letter U, the bend being close to the extreme end of the
e; so as to allow of the pipe, G, to introduce the blast in between the two arms of
e U-shaped water pipe.
The furnace can be shortened to any desired length by dropping a piece of
-shaped iron in between the two arms of the U-shaped water-pipe to prevent the
st from coming through. In the upper part of the fuel compartment is a small
uble iron-frame, K, forming a slot all round the top of the furnace this double
me is to receive the article or articles to be heated, forged, or tempered, as the
se may be.
This double iron-frame may also be constructed wholly or in part of brickwork.
The References to the Drawings are as follows:-
:-
A, shows the interior of the furnace where the heating is performed.
B'shows the ashpit.
Cis the door where the furnace is cleaned after use.
D shows the U-shaped water-pipe, which is filled with water to keep the
pipe at a suitable temperature.
E is the space between the two arms of the U-shaped water-pipe, where
the blast is introduced.
F shows the plug at the bottom of the ashpit, by which means the ashpit B
can be cleaned out by the introduction of the blast.
.G shows the blast-pipe, introducing the blast underneath the U-shaped
pipe.
H shows the brick cover, surrounded by an angle-iron frame, for the
purpose of confining the heat to the interior of the furnace marked A.
This cover opens in halves, for receiving the fuel.
I shows the iron door which closes the aperture C.
J shows the flue for the escape of smoke and gas.
K shows the small double iron-frame forming a slot for receiving the articles
to be heated, forged, or tempered.
Fig. 2.) L shows the balance weight connected with the cover H by means of a
chain passing over a pulley M¹ or M, fixed on a suitabie stand, for lifting
or lowering the halves of the cover H.
Having now particularly described and ascertained the nature of my said
ention, and in what manner the same is to be performed, I declare that what I
im is; by the adoption of this Invention :
(1) The work performed by it will be equal in extent to that of about twenty
linary smith-fires.
(2) The heating, forging, or tempering will be more thoroughly done.

page_text: (3) The consumption of fuel or gas will not be greater than about two ordinary
smith-fires.
(4) The saving of manual labour will be very great.
(3) The consumption of fuel or gas will not be greater than about two ordinary
smith-fires.
(4) The saving of manual labour will be very great.
(5) The furnace can be constructed of any size.
Dated this 9th day of Anril 1889