Improvements in Oil Lamps for Removing Paint, Plumbers' Work, and other like purposes.
Year: 1895

page_text: Date of Application, 18th July, 1895-Accepted, 18th July, 1896
Improvements in Oil Lamps for Removing Paint, Plumbers' Work,
and other like purposes.
I, JAMES MACDONALD, of 3 Dundas Street, Edinburgh, 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 oil lamps of the class generally used for removing
paint, plumbers' work, and such like purposes and it has for its object to improve
their construction.
And in order that my said invention may be properly understood I have hereunto
appended an explanatory sheet of drawings, whereon,
Fig. 1 is a front elevation of the lamp.
Fig. 2 is a vertical section of the lamp.
Fig. 3 is a cross section on the line C, C, Fig. 1.
Fig. 4 is an inverted plan view of the lamp.
Fig. 5 is a view of the mixing chamber and conic cover.
Fig. 6 is a cross section on the line B B Fig. 2.
Referring to the drawings whereon the same reference letters wherever repeated
indicate the same parts.
The lamp consists of a cylindrical oil container a with a screwed plug a' for filling
the same.
The container is connected at top by a cover b into which a hollow
plug or cylinder c is screwed and this plug or cylinder has a tubular mixing
chamber d screwed into its upper end. Fitted in the plug or cylinder c is a solid
block e having a horizontal channel bored in it and screw tapped for the
reception of the screwed end of a branch tube g. A vertical channel h, which
communicates with the channel f, is also bored in the block e for the reception of
a long tubular nipple i. On the lower side of the block e is a screwed projection j
on which is screwed a button or stop piece k carried on the end of a vertical rod 7
whose lower end passes out through a stuffing box m in the bottom n of the
container. This rod is capable of being turned so as to screw the button or stop
piece k up or down on the projection; by means of a thumb piece or handle o.
An extension p, which surrounds the outer end of the rod and the handle o, is
made on the bottom of the container.
A second branch tube q is screwed into the plug or cylinder c and communicates
with a vertical groove or passager made in the upper part of the block e as shown
at Fig. 6. Both branch tubes g, q, are coupled to a pipe s which, by means of a
flexible connecting pipe (not shown) communicates with any suitable bellows,
pump, or air blast device capable of forcing a blast of air into and through the
tubes g, q. As will be seen at Figs. 1 and 3 these tubes g, q are provided with stop
valves or cocks t, t¹.
The wick u which is a circular one, is passed from the oil container round the
outside of the button or stop piece k and up through the hollow plug or cylinder c,
around the block e, to the chamber d into which it projects a short distance. The
space in the chamber d, around the nipple i, is, as shown at Fig. 2, filled or partially
filled with cotton waste v surrounded by a layer of asbestos w or asbestos alone
may be used. A disc, or wire gauze, to', may be placed on the top of the asbestos
and similar discs as shown in dotted lines at w³, 10 may be placed at intervals in the
mixing chamber.

page_text: The tube g is passed through a hole in the wick u and into the block e.
is a conic cover fitted over the mixing chamber d for the purpose of con-
centrating the flame.
When not in use the lamp can be covered up by means of a cap, as indicated in
dotted lines at y Fig. 5.
y is the oil in the container.
Any class of light hydrocarbon or mineral oil can be used with this lamp, such
as naphtha, benzine, paraffin, etc.
When working with the lamp the filling plug a¹ is screwed out of the con-
tainer and the desired quantity of oil poured in thereafter the filling plug a¹ is
screwed again into place and the pipes connected with the bellows or blast
device, whereupon the lamp is lit. The air blast enters the plug or cylinder c in
two streams, from the pipes g. 9, one of which passes up through the central
nipple and the other passes up the passage r and percolates through the cotton
waste and asbestos. In this manner the oil and oil vapour is thoroughly atomized
and mixed with air so that whilst a high standard of combustion is attained a
⚫ powerful smokeless heating flame is produced.
The lamp can be grasped round the container a like a torch when being used
and the flame directed in any direction.
If desired a single air blast can be used.
By screwing the button or stop piece k up and down by means of the handle o
the wick u can be squeezed more or less against the plug or cylinder c and the
amount of oil passing up the wick regulated so as to increase or diminish the flame
as desired.
The air blasts can be regulated by means of the cocks t, t¹.
The lamp is applicable for all purposes where a strong smokeless heating flame
is required.
The lamp may be modified in its construction without departing from the principle
of the invention.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, 1 declare that what I
consider novel and desire to claim is :-
1. A lamp for removing paint, plumbers' work, and other like purposes, wherein
the oil, which is supplied from a suitable container capable of being readily
carried in the hand, is fed by means of a wick to the mixing chamber of the burner
where it is acted on by two blasts of air, substantially as herein before set forth.
2. The combination with a blast lamp, of a permanent wick for supplying oil to
the burner, and means for controlling the supply of oil passing up the wick,
substantially as herein before described and shown on the drawings annexed.
3. An air blast lamp constructed and arranged substantially as hereinbefore
described and shown on the drawings annexed.
Dated this 17th day of July 1895.
H. D. FITZPATRICK,
70 Wellington Street, Glasgow, Agent.