Improvements in Lamps.
Year: 1892

page_text: Date of Application, 28th July, 1892
Complete Specification Left, 28th Apr., 1893-Accepted, 17th June, 1893
PROVISIONAL SPECIFICATION.
Improvements in Lamps.
I THOMAS FLETCHER BRAIME St. Helens Street Hunslet Leeds in the
County of York Engineer do hereby declare the nature of this invention to be as
follows:-
My invention relates to an improved method and means of forming in one piece
out of sheet metal, the body and spout of a conical lamp, without seam or joint
below the top of the lamp and spout and thereby preventing all leakage, as occurs
in a lamp made in two or more pieces.
In order to carry out my invention I stamp up a suitably deep round or oval
body or vessel, in suitable dies, out of one piece of suitable sheet metal plate. The
bottom of the body or vessel instead of being at right angles with the sides of the
body or vessel, forms an obtuse angle with the front side of the vessel, thus causing
the front upper edge of the body or vessel, when the bottom is placed on a flat
In order to cause this body or vessel
surface, to project over a suitable distance.
to form the body and spout of the lamp, I press or bring together the two upper
side edges at a suitable distance between the front overhanging edge and the back
edge of the body, by so doing forming two apertures into the body or vessel, the
one at the front being for the end of the spout and the other at the back being for
filling purposes. By closing in the side edges as above stated and compressing in
the sides of the vessel, cause the body or vessel to form into two portions or
members, one conically shaped at the back forming the body of the lanp, and the
other at the front forming the spout of the lamp.
Dated this Twenty-seventh day of July 1892.
COMPLETE SPECIFICATION.
Improvements in Lamps.
I, THOMAS FLETCHER BRAIME, of St. Helens Street, Hunslet, Leeds, in the
County of York, Engineer, 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 has reference to an improved method and means of forming the
body, spout or spouts, and strengthening bar or bars of a lamp, known in the trade
as a ship's torch lamp." in one piece out of suitable metal plate, such as sheet
iron, steel, brass, tin, or the like without scam, or joint below the top of the lamp
and spout thereby preventing all leakage that usually occurs in a lamp made in two
or more pieces.
In the drawings hereunto annexed, in which the odd numbers are elevations and
the even numbers are plans looking at the top, I have shown four ways of carrying
this invention into practice, that is for constructing a lamp either with a conical, or
circular, or rectangular body, and with one or more spouts, but I distinctly wish it
to be understood that the shape or configuration of the body of the lamp as well as
the number of spouts may be varied or modified without departing from the nature
or principle of this invention.
Like parts in all the views are marked with the same letters of reference.
A is the body or vessel portion of the lamp, hereafter termed the body; a the
bottom, the portions a' a³ (hereinafter termed sides) and a the upper edge of the
Eaid body.
B the spout or spouts through which the wick is passed.
C the strengthening bar or bars arranged between the body A and spout B.

page_text: All the above parts are formed out of one blank or diaphragm (hereafter termed
a blank) of sheet metal plate as hereafter described.
At Figs. 1. to 4 I have shown two of the stages in forming a lamp with a conical
body.
In carrying this invention into practice I first punch out of a sheet of metal plate
a circular blank of the required size and then stamp it up, by suitable dies actuated
by mechanism of ordinary and well known construction to form the bottom a and
cylindrical walls a¹ a² in one piece, and of the shape shown at Fig. 1, that is to say,
the bottom a of the body A instead of being at right angles with the side a¹ of the
said body forms an obtuse angle with its front side a² thus causing the front upper
edge a³, when the bottom a is placed on a flat surface, to project over the said
bottom to a suitable distance as shown.
I then press or bring together by suitable dies two portions of the upper edge at
or about, say, the points at a* and at a suitable distance between the front over-
hanging edge of the side a² and the side a to form the body A and spout B. The
closed portions being pressed in somewhat in the shape of an inverted triangle, to
form the strengthening bar C. At the same time two apertures a and b are
provided, the one (a) for filling purposes and the other (b) for the insertion of the
wick. The aperture a may be closed or covered by a cover or lid of any suitable
construction attached thereon or thereto in any convenient manner.
At Figs. 5 and 6 I have shown the method of forming the body A, spout B, and
strengthening bar C in one piece out of a circular blank, with the bottom a at a
right angle to the side a¹ and the spout B arranged to be also at or about a right
angle to the bottom a whilst one side of the body A is also at an angle.
It will be readily seen in the form of lamps shown at Figs. 3 and 7 the sides of
the spout B are arranged to be parallel with the side a'.
At Figs. 9 to 12, and 13 to 16, I have shown methods of forming the body A,
spouts B, and strengthening bars C out of, respectively, an oval blank and a
rectangular blank. In both cases provision is made for two spouts B B, and two
strengthening bars CC; and the sides a¹ a² are arranged to be at an angle to the
bottom a, that is to say, both the sides taper inwards from the upper edge a³
towards the bottom a for the purpose of the spouts B B being at an angle to
the bottom a.
Lamps shaped as shown at Figs. 7, 11, and 15 are constructed in a similar manner
to that illustrated at Fig. 3, and in all cases the strengthening bar or bars C may,
if desired, be rivetted together, and may or may not be soldered or otherwise sealed
to prevent leakage between the two portions of the bar.
I would have it understood that I am aware that lamps have been made with a
seamless body to which the spouts and strengthening bars have been afterwards
attached, but to such lamps I make no claim.
Having now particularly described and ascertained the nature of my inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
1st. Improvements in lamps consisting essentially in stamping or otherwise
forming the body, spout or spouts, and strengthening bar or bars out of one piece of
sheet metal without joint below the tops of such said parts, substantially as and for
the purposes set forth.
2nd. A lamp substantially such as herein described, constructed with its body A,
spout or spouts B, and strengthening bars C formed out of a single piece of sheet
metal plate, and pressed by dies into shape so as to avoid any joint below the top
of the lamp, substantially as illustrated in the accompanying drawings.
Dated the Twenty-seventh day of April 1893.
THOMAS FLETCHER BRAIME.