Improvements in Sliding Oil Lamps or Lanterns.
Year: 1891

page_text: Date of Application, 25th Nov., 1891-Accepted, 16th Jan., 1892
Improvements in Sliding Oil Lamps or Lanterns.
I, CLIFFORD WILLIAM KEMP, of the firm of Ingram and Kemp of New Town
Row, 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:-
This invention relates to extension, or suspension and sliding oil lamps or
lanterns, and consists primarily of detail improvements in the same, as hereinafter
described.
Figure 1 of the accompanying drawing, represents partly in side elevation, and
partly in vertical section, an oil hall lamp or lantern, provided with improvements
constructed and arranged according to my invention.
The extension and lower part of the same, which carries the basket or carrier for
the reservoir of the lamp, is shown partly drawn forth or prolonged downwards.
The section part of the said view shows how an angular collar part of the rod,
takes within the angles of the bore of a square framing tube, and the plain part
of the rod takes between the sides of the bore of the same.
The said collar prevents both the rotation of the rods, and also the withdrawal
of the same, by the collar parts coming against the end of the lower bracket of the
frame as a stop.
Figure 2 represents an enlarged sectional view of the lower part of one side of
the fittings of the said oil lamp or lantern, when the spring pressure device is upon
the plane of the rod, hence a stiff joint created thereby.
Figure 3 is a view upon an enlarged scale of the lower portion of the extension
part of the lamp, showing the head of the spring pressure device acting as a catch,
and taking itself into notches or depressions at the junctions of the rods with the
carrier part, and when the said carrier part, with basket, is in its slid up or normal
position.
Figure 4 is a cross section upon the dotted lines A. B looking upwards towards
the lamp, and showing how the angular collar or pummel upon the extension rods,
crosses the side of the hole through the bracket, hence the stop formed by the said
bracket, against the withdrawal of the rod, until the same has been disconnected at
its lower end from the carrier, when the eighth part of a rotation brings the hole
in the bracket and collar coincident, when the said rod can be withdrawn.
Figure 5 is a cross section on the dotted lines C. D., showing the angles or
corners of the collars, lying within the angles or corners of the framing tube.
Figure 6 is a cross section upon the dotted lines E. F.
The same letters of reference indicate corresponding parts in the several figures
of the drawing.
a is the lamp framing, consisting of rings, annuluses or enclosures a¹, outstanding
brackets b, and vertical and tie framing tubes c, square in cross section, and united
at their lower and upper ends to circular bosses, of brackets b.
is the extension part of the lamp, consisting of a basket or carrier d', (wherein
oil reservoir with burner is placed) outstanding brackets d', and upright and
circular distension rods, with angular guide and stop collars d', near their
upper ends.
The circular parts of the said guide rods, work within the bore of the square
framing tubes c, (see Figure 6), and in that part comprehended between the sides,
whilst the corners or angles or the square collar parts d', take within the angles of
the inside of frame tubes c.
The eyes of the hollow and circular bosses b', of the brackets b, are square,
and out of line, to the extent of one eighth of a rotation, with the square bores of
the tubes c, so that the corners of the bores of the frame tubes c, fall across the

page_text: sides or boundary edges of the eye 6, of the hollow circular bosses, of the
brackets, so that as the collars d³, of the rods d, are drawn vertically downwards,
the shoulders d', of the angles, come against the metal 3 at the middle of the sides
of the said eyes of the brackets, which are, or fall within the path of the angles of
the shoulders d, on the same being drawn vertically downwards, hence the preven-
tion of the withdrawal of the said rods from the fraine tube, and also the formation
of a stop.
To introduce the extension rods ³, into the tubes c, first pass the fore parts of
the said rods, through the eyes 2, then give the said rods an eighth of a rotation,
when the angular collars a, become coincident with the square bore of the frame
tube c, when the upward movements of the rods, pass them into the frame tubes.
The lower parts d, at their junctions with their carrying brackets, have
notches d, for fixing the extension part in its slid up position, through the instru-
mentality of spring pressure devices e, consisting of a sliding and headed stalk f,f,
and a screw bush g, the latter taking transversely within the circular and hollow
bosses of the brackets b, and the former working telescopically within the
interior of the bushes g, with pressure springs h, disposed between the heads
the said stalks, and the backs of the bushes g, which are adjustable.
of
Thus normally, the heads f of the said pressure devices, impinge against the
rods, and impart stiffness in their sliding, whilst by the screwing up of the adjustable
ushes g, greater or less pressure can be brought to bear upon the said rods, and
further, by the screwing up of the turns 3, the said heads of the stalks, can be
withdrawn within the boundary of the sides of the paths wherein the rods work.
Instead of employing square framing tubes, I may employ hexagon, octagon or
other sided tubes.
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
First In extension or sliding oil lamps or lanterns, fitting or providing the
inner circular rods, or an inner circular rod of the distension or sliding parts, which
work or works or slides within square or angular section framing tubes, with
angular sided collars or bushes d', d, which form both guides for the rods, and
stops for preventing their withdrawal, on the shoulders of the same coming against
portions of the metal of the framing, lying within the path of the said collars or
bushes, when the same is drawn vertically downwards, substantially as described
and set forth.
Secondly In extension or sliding oil lamps or lanterns, the combination with
angular sided tubes c, forming part of the framing of the articles as aforesaid, of a
boss or terminal at the lower end of the same, having an eye or entrance of the
same cross section as the bore of the said tube, or of an angular cross section,
but with the angles of the latter out of line with the angles of the former, so
as to form obstructions or stops to the withdrawal of the rods of the distension
portion of the lamp, substantially as described and set forth.
Thirdly In extension or sliding oil lamps or lanterns, fitting or providing
the frames of the same with yielding pressure devices, whose tension admits of
being adjusted, and the same withdrawn if necessary, substantially as, and for
the purpose as described and set forth.
Fourthly In extension or sliding oil lamps or lanterns, the general con-
struction and arrangement of the detail parts of the same, as herein described,
and set forth in the several figures of the drawings.
Dated this 24th day of November 1891.
CLIFFORD WILLIAM KEMP.
By Henry Skerrett,
6, Livery Street, Birmingham, Agent for Applicant.
CLIFFORD WILLIAM KEMP.
By Henry Skerrett,
6, Livery Street, Birmingham, Agent for Applicant,