Year: 1888

page_text: Date of Application, 16th Apr., 1888
Complete Specification Left, 15th Jan., 1889
Complete Specification Accepted, 16th Feb., 1889
I, FRANCIS MCCULLOCH of 55 Henderson Street, Glasgow, Lanarkshire Plumber,
do hereby declare the nature of this invention to be as follows:
:-
This invention relates to that class of soldering irons which are heated by gas.
The gas is led through a pipe forming the handle which is connected to the gas
supply by means of an india-rubber tube or otherwise. The gas pipe is provided
with the usual burner on the "Bunsen" principle, the air being admitted through
holes in a short tube of larger diameter than the pipe and screw jointed at one
end to the top of the handle. The other end of the tube is screwed into or has
connected to it a tubular head or bit holder, having formed on its upper side two'
arms or jaws for holding the bit which is adjustably fitted by means of a pin or screw,
end the tubular head is so bent downwards as to allow the flame issuing therefrom
to play upon the point of the bit and keep it heated. The bit is provided with a hole
for the passage of the screw or pin holding it to the arms and by taking out or
unscrewing the pin, the bit may be removed and another bit of different shape may
be inserted. Hatchet, glazers or pointed bits can be used interchangably to suit the
different classes of work for which the soldering is required.
To enable the gas jet to lighted at a moments notice, a touch light is provided.
The touch light consists of a small tube or pipe, soldered or otherwise jointed to the
gas pipe forming the handle and so as to be in direct communication with the gas
supply, the touch pipe passes up through the handle and along the underside of
the soldering iron to within a short distance of the heating flame. The touch light
being supplied direct from the gas supply tube does not go out on turning off the..
gas to the soldering iron but is kept alight continually, thus saving the necessity
for frequent striking of lights and enabling the iron to be used at a moments
notice.
When the soldering iron is not in use it may be laid on a rest or support,
preferably of the shape of a frustrum of a pyramid and it may be made hollow to
receive the bit, when so laid.

page_text: Improvements in Soldering Irons Heated by Gas.
I, FRANCIS MCCULLOCH formerly of 55 Henderson Street, Glasgow, Lanarkshire
but now of 47 Hopehill Road, Glasgow aforesaid Plumber, 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 that class of soldering irons or bolts which are heated by
gas and it has for its object to improve the construction of such bolts.
My improved soldering bolt or iron consists of the usual pipe or conduit which
forms or has secured on or to it, the handle and through which the gas is led from the
gas supply by means of an india-rubber tube or other suitable connection to a small
burner on the Bunsen principle fitted to the end of the pipe. Air is supplied to
the burner through holes made in a short tube which is screw jointed at one end
to the top of the handle and which is of larger diameter than the gas pipe or
conduit but instead of the usual arrangement I, under this invention, screw or
connect to the other end of this enclosing pipe a tubular head or bit holder having
preferably on its upper side two arms or jaws for holding the bit which is held
adjustably in position by means of a pin or screw passed through the arms and this
tubular head is so cast or bent downwards as to allow the flame issuing therefrom to
play upon the point of the bit and keep it heated. The bit is provided with a hole
for the passage of the screw or pin holding it to the arms and by simply taking out
or unscrewing the pin the bit can be removed and be replaced by another bit of
different shape. Hatchet, glaziers or pointed bits can be thus used interchangably
to suit the different classes of work, for which the soldering is required.
To enable the gas jet issuing from the bit holder to be lit at a moments notice
a touch or pilot light is provided. The touch or pilot. light arrangement consists of
a small tube soldered or otherwise jointed to the gas pipe forming the handle and so
as to be in direct communication with the gas supply and it passes through the
handle and along the underside of the soldering iron to within a short distance of the
heating flame. The touch light being supplied direct from the gas supply does not
go out on turning off the gas to the soldering iron but is kept alight continually thus
saving the necessity for the frequent striking of lights and always enabling the bolt
or iron to be used at a moments notice.
When the soldering iron is not in use it may be laid on a rest or support preferably
made something after the shape of a frustrum of a pyramid and which is or may
be hollow to receive the bit when so laid.
When a strong heat is required a small blow pipe may be fitted into the bit holder
in such a manner as to play upon the flame issuing therefrom.
And in order that my said invention may be properly understood I have hereunto
appended an explanatory sheet of drawings whereon
Fig. 1, shows a soldering bolt or iron with my improvements fitted thereto.
Fig. 2, is a longitudinal section of the same.
Fig. 3, shows in perspective the rest for the bolt when not in use.
Figs. 4 and 5, are views of bits adapted for use with the bolt.

page_text: The gas passes from the source of supply through the india rubber tube and
thence through the pipe b, in the handle to the Bunsen burner c. Surrounding the
burner c, is the pipe or casing d provided with air inlet holes e, and which has
fitted on its outer end a tubular bit holder f. This bit holder has two arms g,
formed on it for holding the soldering bits g', the bit being adjustably held in the arms
by means of the screw or pin h. As will be seen the tubular head or bit holder fis
bent downwards in such a manner that the flame issuing from it plays upon the
underside of the bit as shown at fig. 1. Instead of using the bit g', as shown, this
bit can be taken out by simply unscrewing the screw h, and can be replaced by bits i
or (figs. 4 and 5) or by any other suitable bits when so desired.
To the underside of the soldering bolt or iron the touch light tube is preferably
secured. This tube communicates directly with the gas supply at 1, and passes
through the handle and along the underside of the bolt to the point of the bit holder,
where the gas issuing from it is kept constantly alight, so that should the gas supply
be turned off from the holder f, by means of the tap m, it will be instantly relighted
when again turned on. Instead of passing the touch tube, k, along the underside of
the bolt it may pass along the top or up the inside of it.
When a strong heat is required the blow pipe n can be attached to the bolt. This is
done by simply screwing it into a socket o, formed or fitted on the top of the
tubular holder, as shown at fig. 2. When the blow pipe is used the cover p would
be slid over the air holes e.
Fig. 3, shows the rest or heater which is preferably made of a piece of sheet metal
bent into the form something after the shape of a frustrum of a pyramid as shown.
When the bolt is not in use it is placed into this rest or heater until required.
rest may be of cast metal and it may be of any suitable shape other than that
shown.
The
As the bits are interchangable my improved soldering bolt can be used for any
class of work as required.
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:
:-
1. The improved construction of soldering bolt or iron substantially as hereinbefore
described and shown on the annexed drawings.
2. In a soldering bolt or iron heated by gas, a tubular head or bit holder having
arms or jaws in which the bit is held adjustably, said holder being so made that the
flame issuing from it shall play upon and heat the bit, substantially as hereinbefore
described.
3. In a soldering bolt or iron heated by gas the application and use of a touch
light for the purposes hereinbefore set forth.
4. The combination with a soldering bolt or iron heated by gas and having a touch
light fitted thereto of a rest into which the bolt or iron may be placed when not
required.
· Dated this 12th day of January 1888.
H. D. FITZPATRICK,
70, Wellington Street, Glasgow,
Agent.