means of gaseous and similar fuel
Year: 1888

page_text: We, WILLIAM ROBERT RAWLINGS and JOHN JOSEPH RAWLINGS, both of 78 Richmond
Road, South Kensington, in the County of Middlesex, Domestic Engineers, do
hereby declare the nature of this invention to be as follows:
This Invention relates to apparatus for soldering by means of gaseous and similar
fuel.
In an apparatus constructed according to our Improvements the soldering bit is
hollow and encloses the end of the injection tube through which the gaseous or
similar fuel is supplied. Within the closed end of the bit there is formed a projection
pointing to the centre of the injection tube and serving to deflect the flame issuing
from the injection tube or a burner thereon to all parts of the interior of the bit and
at the same time acting as a means of convection for the heat of the flame to the tip
of the bit. At a little distance to the rear of the open end of the bit there is fixed
around the injection tube, a concave shield to deffect the products of combustion
issuing from the open end of the bit in a forward direction so that they may not be
liable to burn the hands of the operator. When circumstances permit this shield may
he omitted as it is not essential to the operation of the apparatus.
Dated this 30th dow of M
A n 1000
WILLIAM E. HEYS.
Agent for the Applicants.

page_text: We, WILLIAM ROBERT RAWLINGS and JOHN JOSEPH RAWLINGS both of 78 Richmond
Road South Kensington in the County of Middlesex, Domestic Engineers, 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 apparatus for soldering by gaseous and similar fuel.
In an apparatus constructed according to our Improvements the soldering bit is
hollow and encloses the end of an injection tube through which the gaseous or similar
fuel, or the flame therefrom, is supplied to the interior of the bit. Within the closed
end of the bit there is formed an axial projection pointing to the centre of the
injection tube and serving to deflect the flame issuing from the injection tube or from
a-burner thereon, to all-parts of the-interior of the bit, and at the same time acting
as a means for the convection of the heat of the flame to the tip of the hit. At a
little distance to the rear or below the open part of the bit, there is a concave shield,
formed or fixed around the injection tube in such a manner as to deflect the products
of combustion issuing from the open ends of the bit so that they may not be liable to
enter the injection tube. When circumstances permit, this shield may however in
some cases be omitted as it is not essential to the effective operation of the apparatus
when it is used in a vertical position.
We will proceed to describe our Improvements more particularly with reference to
the accompanying drawings on which Fig. 1 is an elevation of an apparatus constructed
according to this Invention; Fig. 2 is a vertical_section; and Figs. 3 and 4 are
respectively cross sections of Fig. 1 and Fig. 2; Fig. 3 being a section along the
line Y Y, and Fig. 4 being a section along the line X X of Fig. 2.
In each of the Figures A is the injection tube; B is the shield surrounding the
injection tube; C is the soldering bit; D is the projection formed within the closed
end of the bit; E E are wings or distance pieces which are preferably cast upon the
injection tube, and which serve to keep the injection tube central in the bit and as a
means to secure the bit in its position; F F is the lower part or hood of the soldering
bit which is preferably notched or scolloped as shown in the drawings, and G is the
lower part of the injection tube which is preferred to be enlarged as represented.
It is preferred to construct the apparatus of cast copper and to cast the wings E E
upon the injection tube. The soldering bit is slipped over the wings on the injection
tube and secured thereon by bending the lower parts of the hood under the bottom
outside edges of the wings as indicated at H H Fig. 2.
To bring the soldering bit to the desired temperature, and to maintain it at a working
heat, the lower part G of the injection tube is placed over an atmospheric or other
suitable burner so that the flame from the burner passes upwards through the injection
tube and impinges upon the point D and the inner part of the bit, thus producing the
desired heat in the bit for working purposes.

page_text: When the bit is used with an ordinary gas or other burner or lamp, a suitable
handle may be fitted upon the part G of the injection tube whereby the soldering bit
may be manipulated, or it may be manipulated by means of specially constructed
tongs. We prefer to employ the soldering bit however in combination with the blow
pipe apparatus described and illustrated in the Specification to Letters Patent granted
to us No. 5950 dated the 21st day of April A.D. 1888, in which case the part G of
the injection tubo is fitted upon the nozzle of the blowpipe, and the blowpipe apparatus
becomes the handle for the soldering bit. When the soldering bit is used in this
combination, the pilot light will keep the bit hot in the intervals of work and it will
be necessary only to use the full or a reduced power of the blow-pipe flame occasionally,
to bring the point of the bit to a working heat.
It will be found desirable to allow or arrange for the admission of the full supply
of air required for the combustion of the gaseous or vaporous fuel, into or below the
injection tube since the escaping products of combustion will prevent the access of air
by means of the hood to the frame at the top of the injection tube. When the
apparatus is used in combination with the hereinbefore indicated blow-pipe apparatus,
no precaution of this character is needed, nor when it is used above or in combination
with a fully formed flame, but in other cases an opening or openings may be formed
in the lower part of the injection tube for the admission of air.
°
Having now particularly described and ascertained the nature of our said Inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
(1) A soldering apparatus constructed and arranged substantially as hereinbefore
described and as illustrated by the accompanying drawings.
(2) In a soldering apparatus to be used with gaseous and similar fuel; the
combination and arrangement of a hollow bit, with wings or distance pieces, and an
injection tube; substantially as hereinbefore described and as illustrated by the
accompanying drawings.
(3) In a soldering apparatus to be used with gaseous and similar fuel; the
combination and arrangement of a hollow bit, with wings or distance pieces, and a
shield substantially as hereinbefore described and as illustrated by the accompanying
drawings.
:
(4) In a soldering apparatus to be used with gaseous and similar fuel; an
axial point or projecting part within the upper part of the bit; substantially as
and for the purpose hereinbefore set forth and as illustrated by the accompanying
drawings.
Dated this 26th day of February AD. 1889
WILLIAM E. HEYS,
Agent for the Applicants.