Year: 1895

page_text: I, HENRY BERNOULLI BARLOW, of the Firm of H. B. Barlow & Gillett, of
17 St. Ann's Square, Manchester, in the County of Lancaster, Patent Agents, do
hereby declare the nature of this invention, which has been communicated to me
from abroad by Edward Miller, of Meriden, in the County of New Haven, and
State of Connecticut, United States of America, Manufacturer of Lamps &c., and
Frank Theodore Williams, of 177 Elm Street, Meriden aforesaid, Engineer
and in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement :-

page_text: Date of Application, 14th June, 1895--Accepted, 10th Aug., 1895
COMPLETE SPECIFICATION.
Improvements in Lamps.
1, HENRY BERNOULLI BARLOW, of the Firm of H. B. Barlow & Gillett, of
17 St. Ann's Square, Manchester, in the County of Lancaster, Patent Agents, do
hereby declare the nature of this invention, which has been communicated to me
from abroad by Edward Miller, of Meriden, in the County of New Haven, and
State of Connecticut, United States of America, Manufacturer of Lamps &c., and
FRANK THEODORE WILLIAMS, of 177 Elm Street, Meriden aforesaid, Engineer
and in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:—
My invention relates to that class of lamps in which a wick raising sleeve is
connected to a draw-bar which passes out at the top of the lamp. It is intended
to provide means for accurately adjusting the wick exposure through said draw-bar
without interfering with the " plunge" or rapid downward movement of the
draw-bar which is of great convenience in extinguishing the flame.
In the accompanying drawings,
Figure 1 represents in elevation, partly broken away, an Argand lamp embodying
my invention.
Figs. 2, 3, and 4 show the working parts of my device separately and detached
from the lamp.
The same letters refer to like parts in the several views.
A, designates a lamp fount provided with a draw-bar opening a and shaft
guide a B, an inner air supply tube; C, a wick, D, a wick sleeve; d, an offset
on the sleeve D; E, a draw-bar provided with a rack e; F, a pinion; G, a shaft
squared at 9 and screw-threaded at gl; H, a button; I, a nut.
In the example of my invention illustrated in the drawings, the fount A, inner
air supply tube B and tubular wick C are of ordinary or convenient form. The
wick sleeve D as shown encircles the tube B and may be provided with means
many of which are well known in the art, for securing the adhesion of the wick C.
To the sleeve D is attached the offset d here shown as a horizontally projecting
tubular socket adapted to receive the bent lower end or foot of the draw-bar E.
The socket d is made from a solid drawn tube one end of which is enlarged and
united to the sleeve D as by swaging. In the draw-bar E is cut an inclined rack e
into which within the fount A mesh the teeth of the pinion F. The inclined
shaft G on which the pinion F is mounted passes through the guide or bearing a¹
in the top of the fount A. At the outer end of the shaft G is the button H by
means of which the operator is enabled to rotate the pinion F thereby raising or
lowering the draw-bar E with its attached sleeve D and wick C. The button H
as shown has a square central aperture corresponding to the squared portion g of
the shaft G and so as to fit thereon. On the screw threaded end g' of the shaft G
is screwed the nut I, which serves to hold the button H in place.
It will be seen that the fount A may be buffed and otherwise finished before the
parts F, G, H and I are assembled with it, thus reducing both the cost and the
risk of bending or injuring the parts. By making the socket d on the sleeve D
from a drawn tube instead of a bent piece of sheet metal and securing the socket
on the sleeve by swaging I materially strengthen the wick adjusting device and
adapt it to the quick thrust required to suddenly extinguish the flame. It will
also be seen that my device does not detract from the appearance of the lamp as
the working parts are within the fount. For this reason also the device is less

page_text: expensive as no case is required to hide the pinion. The most considerable
advantage of inclining the shaft g and placing the pinion F within the fount in
connection with the bevel rack e on the draw-bar E is that the lower end of the
draw-bar entirely clears the pinion when the draw-bar is raised to its highest point
so that the foot of the draw-bar inay be withdrawn from the socket d and fount
opening a'. In this way the separate withdrawal of the bar E and wick sleeve D
from the fount A is still permitted and the advantage gained by the invention
covered by United States Patent No. 477,862 is retained.
Having now particularly described & ascertained the nature of this inven-
tion & in what manner the same is to be performed I declare that what I
claim is :-
First. In a lamp in combination a wick sleeve, a draw-bar connected with said
sleeve, an inclined or bevel rack on said draw-bar, an inclined shaft passing through
the top of the lamp, and a pinion on said shaft within the lamp and meshing in
said rack, substantially as described.
Second. In a lamp in combination a wick sleeve, a radially projecting socket on
said sleeve, a draw bar the lower end of which is bent to form a foot adapted to
enter said socket, an opening in the top of the lamp in which said draw-bar may
move either vertically or horizontally, an inclined or bevel rack on said draw-bar,
an inclined shaft passing through the top of the lamp and a pinion on said shaft
within the lamp and meshing in said rack, substantially as described.
Third. In a lamp in combination a wick sleeve, a draw-bar connected with said
sleeve, an inclined or bevel rack on said draw-bar, an inclined shaft passing through
the top of the lamp, a pinion on said shaft within the lamp and meshing in said
rack, a button above the top of said lamp and detachably secured on said shaft and
means as a nut for securing said button on said shaft, substantially as described.
Fourth. In a lamp in combination a wick sleeve, a tubular offset secured to said
sleeve, a draw-bar and a foot on said draw-bar adapted to engage with said socket,
substantially as described.
Fifth. In a lamp in combination a wick sleeve, a solid tubular offset swaged to
said sleeve, a draw-bar and a foot on said draw-bar adapted to engage with said
socket, substantially as described.
Dated this 13th day of June 1895
H. B. BARLOW & GILLETT,
17 St. Ann's Square, Manchester, Agents for Applicant.