Improvements in Lamps for Burning Mineral Oils.
Year: 1892

page_text: Date of Application, 3rd Aug., 1892
Complete Specification Left, 3rd May, 1893-Accepted, 2nd June, 1893
PROVISIONAL SPECIFICATION.
Improvements in Lamps for Burning Mineral Oils.
We, THE DEFLECTOR SAFETY LAMP AND MINERS' APPLIANCE COMPANY
LIMITED, of 349 Chester Road, Cornbrook, Manchester, in the County of
Lancaster, Engineers and Brassfounders, and ANDREW HOWAT, of the same
place, Managing Director, do hereby declare the nature of our said invention to be
as follows:-
This invention relates to improvements in lamps for burning mineral oils,
particularly to hand lamps and the improvements consist chiefly in a novel com-
bination and arrangement of known parts and devices whereby a cheap and safe
lamp is obtained and one which gives a good light with a comparatively small
consumption of oil.
The improved lamp in its essential features consists of a body forming the oil
reservoir, a burner, a flame regulator and glass chimney.
The oil reservoir is packed with small pieces of sponge or other absorbent
material which are saturated with the oil and are preferably held in position by a
disc of wire gauze.
The oil reservoir is charged through a suitable filling
aperture by pouring into it as much oil as the sponge or other material will
absorb, any surplus oil being poured back so that in the event of the lamp
being upset no oil can be spilled and consequently there is no possibility of
accident arising from that cause. The wick is in two portions the lower and
greater length being a permanent wick in contact with the saturated sponge in
the oil reservoir and the upper portion being a short length of separate wick
which is inserted into the wick tube from the outside so that its lower end
rests upon the permanent wick and the upper end projects above the top of the
fixed wick tube; surrounding the wick tube and shorter wick is a regulating
sleeve to the outside of which is secured a short pin or projection which enters
a groove in or the space between double flanges on a nut fitted on a screwed
stud secured vertically to the oil reservoir and extending from it to the base of the
chimney gallery. The gallery supports the glass chimney and is preferably
perforated to allow air to flow freely to the wick.
When lighted the upper wick is fed with oil by the saturated permanent wick
and sponge, and the flame can be regulated by simply turning the nut and so
raising or lowering the sleeve as required.
When the wick becomes charred the short length is withdrawn and replaced by
a fresh piece of similar length.
Dated this 2nd day of August 1892
H. B. BARLO & GILLETT,
Agents for Applicants.
COMPLETE SPECIFICATION.
Improvements in Lamps for Burning Mineral Oils.
We, THE DEFLECTOR SAFETY LAMP AND MINERS' APPLIANCE COMPANY
LIMITED, of 349 Chester Road, Cornbrook, Manchester, in the County of
Lancaster, Engineers and Brassfounders, and ANDREW HOWAT, of the same
place, Managing Director, 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 lamps for burning mineral oils,

page_text: particularly to hand lamps, and the improvements consist chiefly in a novel com-
bination and arrangement of known parts and devices whereby a cheap and safe
lamp is obtained and one which gives a good light with a comparatively small
consumption of oil.
And in order that this invention may be fully understood and readily carried
into effect we will describe the accompanying sheet of drawings reference being
had to the figures and letters marked thereon.
The improved lamp in its essential features consists of a body a forming the oil
reservoir, a burner b, a flame regulator i and a glass chimney d.
The
The oil reservoir a has secured to it a handle a' and is packed with small pieces
of sponge or other absorbent material e which are saturated with the oil and are
preferably held in position by a disc of wire gauze f. The oil reservoir is charged
through a suitable filling aperture closed by a screw cap g or otherwise by pouring
into it as much oil as the sponge or other material e will absorb, any surplus oil
being poured back so that in the event of the lamp being upset no oil can be spilled
and consequently there is no possibility of accident arising from that cause.
wick is in two portions h the lower and greater length being a permanent wick
in contact with the saturated sponge in the oil reservoir and the upper portion
being a short length of separate wick which is inserted into the wick tube > from
the outside so that its lower end rests upon the permanent wick and the upper
end projects above the top of the fixed wick tube surrounding the wick tube b
and shorter wick is a regulating sleeve i to the outside of which is secured a
short pin or projection which enters a groove in or the space between double
flanges on a nut j fitted on a screwed stud k secured vertically to the oil reservoir a
and extending from it to the base of the chimney gallery 1. The gallery
supports the glass chimney d and is preferably perforated to allow air to flow freely
to the wick.
When lighted the upper wick is fed with oil by the saturated permanent
wick and sponge e and the flame can be regulated by simply turning the nut
and so raising or lowering the sleeve i as required. Instead of the projection and
nut for raising and lowering the sleeve i a rack and pinion or other suitable
device might be employed.
When the wick becomes charred the short length is withdrawn and replaced
by a fresh piece of similar length.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed we declare that what
we claim is :-
In combination an oil reservoir packed with absorbent material, a wick tube with
a permanent lower wick and a short upper changeable wick, a regulating sleeve
and means for raising and lowering the same, a gallery and glass chimney, all
substantially as herein set forth.
Dated this 2nd day of May 1893.
H. B. BARLOW & GILLETT,
17, St. Ann's Square, Manchester, Agents for Applicants.