Improvements in Blow Lamps used by Plumbers; Painters, and others..
Year: 1895

page_text: Date of Application; 7th June: 1895-Accepted; 24th Aug:, 1895
COMPLETE SPECIFICATION.
Improvements in Blow Lamps used by Plumbers; Painters,
and others..
I, GEORGE ANKRETT of 150 Saint Lukes Road; Edgbaston, in the City of
Birmingham, Manufacturer, 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 :-
1
This invention has relation to apparatuses used by plumbers in making metallic
joints, by painters in burning off paint from surfaces to be re-painted 'and by others
for sundry heating purposes.
The said invention has for its object, an efficient lamp, and consists of a taper
mandril tube burner, having a series of holes through its walls for the entrance
thereinto of atmospheric air which intermingles with the benzoline gas emanating
from a nipple in communication with a generating tube attachedly connected to
a spirit container, into which a cotton wick located within the generating tube
depends.
The passage to the nipple is controlled by a valve; whilst the generating tube
has situated thereunder, a starter cup for containing a small quantity of spirit
which is lighted in order to first heat the generating tube for first starting the
lamp.
Figure 1 of the accompanying drawing represents in longitudinal vertical 'section,
a spirit blow lamp constructed; arranged and provided with improvements made
according to my invention.
Figure 2 represents the burner part of the apparatus and the branch inlet pipe
separately and partly in section and partly in elevation.
Figure 3 is a cross section of the burner tube upon the dotted lines a-x
Figure 1, and
Figure 4 represents the regulating valve separately.
The same letters of reference indicate corresponding parts in the several figures
of the drawings.
The burner a, of the lamp consists of an. open-ended and taper mandril: tube,
supported upon the middle of its underside by a vapor-generating tube b, which
forms both the receiver for the wick, the vapor generating chamber, and the
bracket connection between the burner and the spirit: container c, into which the
end', of the cotton wick & located within the interior of the generating tube b,
bangs, and by means of which the spirit is lifted to the burner through capillary
attraction as usual.
The generating tube is closed at the top b', and is connected at the bottom 62,
by a union joint 63, to the screwed neck c, of the spirit container c, which has
handles c², at the rear for holding the lamp when in use.
The joint formed between the generating tube and the burner is packed with
prepared asbestos, which prevents the insinuation of the spirit vapor through the
joint.
Situated underneath the generating tube is an affixed or detachable starter e,
consisting of a cup or vessel, into which a small quantity of spirit is placed
and then ignited for preparatorily heating the spirit-saturated wick prior to the
general heating of the apparatus, which, after once starting the lamp, is carried
on by the conduction of heat from the burner through the metallic parts.
Directed upwardly from the topside of the generating tube, is a branch pipe f
for conducting spirit vapor evolved in the said generating tube to the burner a, and

page_text: being surmounted by an inlet branch ¹, running lignable with the centre of the
burner, and with the fore part fitted with a nipple f2, having a taper hole f³, up
its middle and separated from the seat 4, of the regulating valve g, by solid part f
so, that on the said regulating valve g, carried at the screwed end g', of the stalk g²,
working through the asbestos-packed gland 93, and screwing into the screwed
interior of the branch, coming up to its seating, the screwed-in nipple is protected
or prevented from being unscrewed by frictional contact.
The regulating valve has a handle g, for turning the same, whilst the back
open end a¹ of the burner a, which has atmospheric air inlet holes a³, is covered by
a wind guard a², consisting of a slotted cap, which may be placed in position when
it is desired to protect the flame from excessive air currents.
The series of air-inlet holes a³ are formed through the burner a little forward of
the nipple, whilst other air holes (which are circular) are disposed near the mouth
entrance to the said burner.
By constructing blow lamps as described the burner is isolated from the body of
the lamp and explosions are prevented, whilst common air is admixed with the
benzoline vapor in such proportions as to obtain perfect combustion, hence an
intense heat.
:
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what I
claim is :-
st
'
First. In blow lamps, employing as the burner, a taper mandril tube, with
circular or equivalent piercings arranged substantially as described and set forth.
Secondly. In blow lamps, the combination with a burner as referred to in the
preceding claim, of a nipple or a screwed-in nipple, separated from the valve by
an intervening solid or part, substantially as described and set forth.
Thirdly. In blow lamps, the combination with the burner the nipple and the
valve, of a branch pipe f, connected with the generating tube, substantially as
described and set forth.
Fourthly. In blow lamps, providing the same, or the underside of the generating
tube thereof, with a starting cup, substantially as described and set forth.
Fifthly. In blow lamps, the means of isolating the burner from the body of the
lamp, substantially as described and set forth.
Sixthly. The general construction, arrangement and combination of the parts of
blow lamps for painters, plumbers and others, substantially as and for the purpose
as described and set forth.
of T 100-
Dated this 6th day of June.
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GEORGE ANKRETT,
By Henry Skerrett,
24 Temple Row, Birmingham, Agent for Applicant.