Improvements in Brazing Hearths or Cycle Forges.
Year: 1896

page_text: Date of Application, 4th Nov., 1896
PROVISIONAL SPECIFICATION.
Improvements in Brazing Hearths or Cycle Forges.
We, WILLIAM ALLDAY, of Springfield Moseley, in the County of Worcester,
Manufacturer, and EDMUND ALLDAY, of Spring Coppice, Knowle, in the Connty of
Warwick, Manufacturer, do hereby declare the nature of this Invention to be as
follows:-
Our invention consists of the improvements hereinafter described in brazing hearths
or cycle forges whereby they are rendered more efficient in use and their application
to a variety of purposes facilitated.
In brazing hearths or cycle forges as ordinarily constructed the bellows of the hearth
supplies a blast of air to the burning coke or fuel in the pan of the hearth by means
of a fixed vertical pipe and horizontal jet the blast being supplied at one side of the
pan.
The bellows also supplies a jet of air by means of an elastic tube for the blowpipe
by the flame of which the brazing is effected. The heat of the ignited fuel in the pan
of the hearth maintains the article under treatment at a high temperature while the
blowpipe flame raises to a brazing heat that part of the article where the brazing is to
be effected.
In constructing a brazing hearth or cycle forge according to our invention we
employ in addition to the two blasts of air referred to a third blast. This is delivered
through a central hole in the bottom of the pan and radiating from the centre spreads
through the whole of the ignited fuel and raises the whole of the article under
operation to a high temperature.
The said third central blast may conveniently be supplied by a branch pipe connected
to the vertical pipe by which the blast is supplied through the side of the pan. In
this case the vertical pipe and the branch pipe are furnished with valves or stop-cocks
by means of which either of the two jets singly may be put into operation or the said
jets may be used conjointly.
Or instead of taking the central blast from the supply pipe of the side jet the said
central blast may be taken from the bellows by means of an independent pipe.
Dated the Fourth day of November 1896.
W. T. WHITEMAN,
Agent for the Applicants.
Improvements in Brazing Hearths or Cycle Forges.
We, WILLIAM ALLDAY of Springfield, Moseley, in the County of Worcester,
5 Manufacturer, and EDMUND ALLDAY of Spring Coppice, Knowle in the County of
Warwick Manufacturer, do hereby declare the nature of our invention and in what
[Price 8d.]

page_text: manner the same is to be performed-to. be particularly described and ascertained in
and by the following statement :-
Our invention consists of the improvements hereinafter described in brazing hearths
or cycle forges, whereby they are rendered more efficient in use and their application
to a variety of purposes facilitated.
In brazing hearths or cycle forges as ordinarily constructed the bellows of the hearth
supplies a blast of air to the burning coke or fuel in the pan of the hearth by means
of a fixed vertical pipe and horizontal jet, the blast being supplied at one side of
the pan.
The bellows also supplies a jet. of air by means of an elastic tube for the blow pipe 1
by the flame of which tlie brazing is effected. The heat of the ignited fuel in the pan
of the hearth maintains the article under treatment at a high temperature while the
blow pipe flame raises to a brazing heat that part of the article where the brazing is to
be effected.
In constructing a braxing hearth or cycle forge according to our invention we employ
in addition to the two blasts of air referred to, a third blast. This is delivered through
a central hole or holes in the bottom of the pan and radiating from the centre by
means of a perforated grid spreads the whole of the ignited fuel and raises the whole
of the article under,operation to a high temperature.
In
The said third central blast may conveniently he supplied by a branch pipe connected
to the vertical pipe by which the blast is supplied through the side of the pan.
this case the vertical pipe and the branch pipe are furnished with valves or stopcocks
by means of which either of the two jets singly may be put into operation; or the said
jets may be used conjointly.
1
Or instead of taking the central blast from the supply pipe of the side jet, the said
central blast may be taken from the bellows by means of an independent pipe.
Figures 1 and 2 of the accompanying Drawing, represent elevations, taken in planes.
at right angles to one another, and Figure 3 in plan, a brazing hearth or cycle forge
containing our improvements; Figure 4 is a section of the central part of the pan, its
fire dish or air reservoir and blast supply pipe, drawn to a larger scale than
Figures 1, 2 and 3.
The same letters of reference indicate the same parts in the several figures of the
Drawing.
a is the pan of the hearth or forge,, mounted and supported on the wrought iron
legs b; b as usual, c is the circular bellows beneath the said pan, worked by the treadle d².
To the said bellows the air supply pipes d and e are affixed. By the working of
the bellows e a blast of air is supplied to the pipe d in connection with the ordinary.
blow pipe and also to the vertical pipe e by which it is conveyed through one side
of the hearth or pan , the blast being delivered through an ordinary tuyere or jet
at r. The blast of air from the bellows supplied to the blast pipe d of the blowpipe jet
is regulated and shut off by the stop cock f. Gas is supplied to the air supply pipe d
by the pipe g. The third or central blast hereinbefore referred to is supplied centrally
to the bottom of the pan , by the horizontal branch pipe h connected to the vertical
pipe e by which the blast is supplied through the side of the pan. In the vertical pipe e
a stopcock for regulating and utting off the blast; and in the branch
pipe is a stopcock k for the same purposes. By opening either of the stopcocks i
or k, the jets supplied by the pipes e and h may be put into operation singly; or by
opening both of the said stopcocks i, & the two jets may be used conjointly.
The inner end of the branch pipe h.terminates under the centre of the bottom of
the pan a and opens into a fire dish or air reservoir l, the top of which is covered with
a perforated cast iron grid as will be best understood by referring to the enlarged
sectional view Figure 4. The blast of air delivered at the centre of the bottom of the
pan radiates from the said centre and spreads through the whole of the ignited fuel in
the pan and assisted by the side blast delivered at raises the whole of the article to
a high temperature.
Instead of supplying the central blast from the branch pipe h in connection with

page_text: the vertical pipe e which supplies air through the side of the pan, the said central
blast may be taken directly from the bellows by an independent pipe; and the bellows
represented in the drawing may be replaced by a fan or blower.
Having now particularly described and ascertained the nature of our invention and
in what manner the same is to be performed we declare that we claim as our
invention-
The improvements in brazing hearths or cycle forges herein before described and
illustrated in the accompanying Drawing; that is to say, delivering a central blast of
air through the bottom of the fixed pan of the brazing hearth or cycle forge to the
burning coke or fuel in the said pan by means of a branch blast pipe connected with
the vertical blast pipe conveying the blast from the bellows fan or blower through one
side of the said pan, or by an independent blast pipe connected directly with the
bellows, fan or blower of the hearth or cycle forge, the several parts being constructed,
arranged and working substantially as described and illustrated.
Dated the 12th day of July 1897.
WILLIAM ALLDAY.
EDMUND ALLDAY.