Improvements in Colza-oil Lamps, to be used Principally for the Inspection of Machinery and similar purposes.
Year: 1889

page_text: Date of Application, 20th Dec., 1889
Complete Specification Left, 13th Sept., 1890-Accepted, 18th Oct., 1890
PROVISIONAL SPECIFICATION.
Improvements in Colza-oil Lamps, to be used Principally for the
Inspection of Machinery and similar purposes.
I, FREDERICK WILLIAMSON of 95 Toronto Road Tilbury in the County of Essex
Engineer do hereby declare the nature of this invention to be as follows :—
The object of my invention is to manufacture a lamp for the inspection of machinery
and similar purposes in such a manner that the reservoir of the lamp, can be so
adjusted upon a suitable frame, that it may be tilted forwards upon a centre, in
order to throw the oil in fuller contact with the wick when such oil is becoming
exhausted.
Upon a suitable flat basis, I form two vertical standards and between such
standards, I place and pivot to them, a reservoir to contain the oil. This reservoir
is for choice, circular in side elevation, and of sufficient width to comfortably fit in
and revolve between the aforementioned standards after the manner of a drum.
From the base of this drum like reservoir, rises a curved spout to about the height
of the top of the said reservoir. This spout is rectangular in section and has for its
purpose, to receive and hold the wick of the lamp, which may be specially made for
such lamp.
The aforesaid spout which leaves the drum (tangentially) is continued in the
interior of the drum for half its circumference, up to the top of the said drum or
reservoir, and this portion is perforated, to allow of a free access for the oil.
The wick is inserted from the outside of the lamp down the mouth of the spout,
and forced, until it appears thro' the perforated portion, and up to about the top
of the reservoir.
It will thus bo seen that when the reservoir is full, the whole of the area of the
wick is exposed to the oil.
As aforementioned the drum like reservoir is pivotted at or about its centre on the
vertical standards.
A slot is formed in one of these standards, near the base, and a pin having a thread
formed on the same, is fixed to the reservoir and this pin, working in the slot governs
the extent, to which the drum like reservoir is tilted from its centre.
A butterfly screw is placed on the threaded pin in order to adjust and fix the tilt of
the reservoir.
The object of this portion of my invention is to throw forward the oil when it
becomes low in the reservoir into the spout containing the wick.
I pour the oil into any reservoir at the top, through a raised circular opening, the
aides of which are cut in two or three places, the better to receive a circular formed
cap, whose sides are also split or cut in two or three places in order to adjust and fit
tightly into the neck of the opening.
A chain is arranged from this cap to any suitable part of the lamp.
A handle is formed on the reservoir to assist in moving the same upon its centre.
A stout wire rises from each of the standards above the lamp and terminates in a
hook in order to hang the lamp when required.
As the frame of the lamp is formed with a flat base as aforementioned, it will stand
easily on any even surface.
I propose to manufacture my improved lamp in tin or other stout sheet metal.
As my improvements are capable of some modification, I do not restrict myself to
material, dimensions or the precise form or placements of the various parts thereof.
Dated this 20th day of December 1889.

page_text: RAYNER & CASSELL,
37, Chancery Lane, London, W.C., Agents for the Applicant.