IMPROVEMENTS IN OIL LAMPS, AND IN APPARATUS FOR LUBRICATING MACHINERY
Year: 1851

page_text: BRIGGS, of Primrose Street, Bishopsgate Street, Seed Crusher, send greeting.
WHEREAS Her present most Excellent Majesty Queen Victoria, by Mer
Royal Letters Patent under the Great Seal of the United Kingdom of Great
Britain and Ireland, bearing date at Westminster, the Ninth day of October,
One thousand eight hundred and fifty-one, in the fifteenth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto me, the said
Henry Briggs, my exors, adñiors, and assigns, Her especial licence, full power,
sole privilege and authority, that I, the said Henry Briggs, my exors, adiiors,
and assigns, and such others as I, the said Henry Briggs, my exors, adñiors,
and assigns, should at any time agree with, and no others, from time to time and
at all times during the term of years therein expressed, should and lawfully
might make, use, exercise, and vend, within England, Wales, and the Town
of Berwick-upon-Tweed, my Invention of "IMPROVEMENTS IN OIL LAMPS, AND
IN APPARATUS FOR LUBRICATING MACHINERY;" in which said Letters Patent is
contained a proviso, that I, the said Henry Briggs, shall cause a particular
description of the nature of my said Invention, and in what manner the
same is to be performed, by an instrument in writing under my hand and
seal, to be inrolled in Her Majesty's High Court of Chancery within six
calendar months next and immediately after the date of the said in part

page_text: recited Letters Patent, as in and by the same, reference being thereunto had,
will more fully and at large appear.
NOW KNOW YE, that in compliance with the said proviso, I, the said
Henry Briggs, do hereby declare that the nature of my said Invention, and the
manner in which the same is to be performed, are fully described and ascer-
tained in and by the following statement thereof, reference being thad to the
Drawing hereunto annexed, and to the figures and letters marked thereon,
that is to say:
My Invention consists in the regulation of the supply of air to an argand
burner in a roof lamp for railway carriages. a is an argand burner; b, the oil
cistern; c, a pipe through which the oil flows to the receiver d, as in an ordi-
nary fountain lamp; e is a tin case, on which the reflector f and cistern b rest,
and fastened to the pipe d by a screw or otherwise at o; g, air casing with
perforation towards the lower part; h, perforation or wire gauze at the entrance
of the air casing g, for checking the flow of air to the body of the lamp; i is a
perforated metal or wire gauze, placed over the hole at the bottom of the
argand burner, by which the air is checked on its admission to the wick; k, k,
are perforations in the bottom of the gallery, for checking the admission of air
to the outside of the wick; is a glass chimney; m is a tin continuation pipe
of the chimney; n, a rack and pinion for raising and lowering the wick, as in
ordinary lamps.
What I claim is, the mode of admitting air to argand lamps used for roofs
of railway carriages, by employing perforated plates or wire gauze, as shown
and described.
Lubricator No. 1. By the revolution of the carriage wheel, the collar
attached to the axle raises the oil from the cistern below it to the upper
surface, whence it flows down and lubricates the whole of the bearing, as
shown in the Drawing No. 1. a, neck of the axle; b, collar forming part of
the axle; c, oil cistern; d, axle box, of the usual shape; c, brass, in two parts;
(f, hemp or other packing.
Lubricator No. 2. By the revolution of the carriage wheel, the roller, of
hollow tin or other substance, made so that it will float in oil in contact with
the neck of the axle, raises the oil from the cistern below, lubricating the
under surface, as shewn in the Drawing No. 2. a, neck of axle; b, small
hollow roller, of tin or other material, made so that it will float in oil; c, oil
cistern; d, axle box, of the usual shape; e, brass; f, hemp or other packing.
What I claim are the means herein described, whereby the oil is raised
from a vessel below the axle by means of projections on the axle, or by

page_text: rollers, as herein explained; but I do not claim the forming of projections or
collars on the axles when uncombined with the use of an oil vessel below.
In witness whereof, I, the said Henry Briggs, have hereunto set my hand
and seal, this Eighth day of April, in the year of our Lord One thou-
sand eight hundred and fifty-two.
Enrolled the Eighth day of April, in the year of our Lord One thousand
eight hundred and fifty-two.