Improvements in or connected with Brazing or Soldering Hearths.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
Improvements in or connected with Brazing or Soldering Hearths.
We, ROBERT JOSEPH JUDGE, General Manager, and HARRY HUNT, Works
Manager, both of Westminster Works, Montgomery Street, Birmingham, do
hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in or connected with brazing or solder-
ing hearths, and is more particularly intended for hearths used for the purpose
of soldering tubes.
These
It consists broadly of the combination with such hearths of a removable cover
or roof, which may be lifted from off the hearth at will, whereby free access may
be had to the fire for fuel feeding, inspection of the work or other purposes.
covers are preferably of cast iron and lined with fire brick, fire clay or other similar
refractory material. Suitable openings or doors are placed where necessary for
the admission of the tube &c. to be treated. A chimney opening or outlet is pro-
vided in the said cover. In treating tubes the hearth is of a long narrow form
having the blast inlet or inlets from below, and to the covers for such we prefer to
provide at the one end a hinged door while at the other end a plain opening may
be used and in conjunction with the latter a roller is mounted upon the hearth
frame upon which the tube may ride and thus facilitate its movement; The said
covers may be raised and lowered by any suitable means but usually chains are
attached which pass over pulleys carried in fixed brackets and further having
counterpoising weights.
If desired the cover may be divided into parts.
By these means the fire may be burnt clear and fierce and the heat retained
close about the tube &c., and yet access be made when required to the interior.
Dated this 8th day of February 1897
CHARLES T. POWELL,
Applicants' Agent.
We, ROBERT JOSEPH JUDGE, General Manager, and HARRY HUNT, Works
Manager, both of Westminster Works, Montgomery Street, Birmingham, 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 improvements in or connected with brazing or soldering
hearths, and is more particularly intended for hearths used for the purpose of
soldering tubes.

page_text: It consists broadly of the combination, with such hearths of a removable cover
or roof, which may be lifted from off the hearth at will, whereby free access may
be had to the fire for fuel feeding, inspection of the work, or other purposes.
In order to more clearly explain this our invention we have appended hereunto
an illustrative drawing upon which are figures and numbers of reference, and in
which:
Fig. 1, is a view in side elevation of a hearth fitted with this removable cover
or roof arranged according to our invention.
Fig. 2, is a plan view of the same.
Fig. 3, is a cross sectional view on line A-B.
6, is the hearth. 7, 7, are pipes conveying the blast thereto, which is controlled
by taps 8, 8. 9, is the cover which is preferably of cast iron, and lined with fire-
brick, fire clay or other similar refactory material 10. 11, is a door hinged at 12,
which forms an opening to the exit end of the fire. 19, is a partition in the cover,
so that when the door 11, is open, the fumes may not be allowed to escape there-
through, but be properly drawn up the chimney 16. Such partition also protects
the attendant from the full heat of the fire, when necessity arises for him to be
near such opening. As for instance, should the flux upon the tube not have
properly flowed during its travel through the hearth, then the attendant can
readily by means of the open door 11, apply and use a blow pipe upon such part
without detriment or interference to the fire in general.
Small openings at 13 are made, through which the tube 20, may be passed
through the fire, as indicated by dotted lines. 14, 14. are rollers mounted in
brackets 15, 15, to facilitate the easy travelling of the tube under operation. One
or more chimney openings 16 may be used.
The covers may be raised and lowered by any suitable means but usually
chains 17 are attached, which pass over pulleys carried in fixed brackets and
further having counterpoising weights.
If desired the cover may be divided into parts.
By these means the fire may be burnt clear and fierce and the heat retained close
about the tube &c., and yet access be made when required to the interior.
Having now particularly described and ascertained the nature of this our said
invention, and in what manner the same is to be performed, we declare that what
we claim is:-
1. In hearths for brazing and the like purposes the combination with the
hearth 6, of the removable cover or roof 9, substantially as set forth and shown.
2. In hearths for brazing and the like purposes the removable roof or cover 9,
having the partition 19, substantially as set forth and shown.
3. In hearths for brazing and the like purposes, the removable roof or cover 9,
having the hinged door 11, and the right through opening with or without
rollers 14 all substantially as set forth and shown.
ated this 8th day of December 1907
CHARLES T. POWELL,
Applicants' Agent, 12, Cherry Street, Birmingham.