IMPROVEMENTS IN LAMPS FOR BURNING VOLATILE, HYDRO-CARBON AND OTHER OILS
Year: 1884

page_text: PROVISIONAL SPECIFICATION.
I THOMAS TAYLOR of Havelock Place Hanley in the County of Stafford
Manufacturer do hereby declare the nature of said Invention for "IMPROVEMENTS
IN LAMPS FOR BURNING VOLATILE, HYDRO-CARBON AND OTHER OILS," to be as
follows:-
My Invention has reference principally to the burner and gallery part of lamps
for burning volatile and fixed oils, and my Invention has for its object to facilitate
the trimming of the wick or wicks and the lighting of the said wicks, and also the
refilling or replenishing of the oil reservoirs, and my said Invention consists of the
construction and arrangement of the parts hereinafter described of the said lamps,
whereby the gallery supporting and carrying the burner, chimney, globe, dome or
reflector, can be raised for trimming or relighting the wicks without the chimney
or globe or other parts supported by the gallery being removed, and for refilling
or replenishing the oil reservoir, without disturbing or raising the burner, or any
part thereof, without separating or detaching any parts of the Lamp, and my said
Invention consists in indicating when the oil reservoir of the said lamp is full of
oil, and thereby preventing accident by overfilling and spilling of the oil. I will
describe my Invention as applied to a lamp for burning petroleum or other
volatile oils.
A metallic mount or collar mounted on the mouth of the oil reservoir, I make
preferably of larger diameter than the mount or collar of an ordinary duplex lamp.
The said collar is fitted with a circular tube, fixed on the inner circle, and on the
underside of the mount or collar, which circular tube descends vertically into the
oil reservoir, and within this circular tube, I make one or more vertical guiding
slots to receive the pin, stud or studs hereinafter described.
A second metallic cap or cover fits evenly and revolves truly on the top of the
aforesaid mount. The diameter of the said cap is made to correspond to nearly
that of the aforesaid mount. This cap or cover is also constructed with a circular
tube fixed also to the inner circle of said cap or cover in a vertical position and is
constructed of so much less diameter as will enable it to revolve evenly and
smoothly within the vertical circular tube of the aforesaid mount and projects
sufficiently far through the lower end of the tube of mount as to enable it to be

page_text: fixed thereto by set screws or by rolling over of the lower end of tube of cap,
so that it will still revolve but be prevented thereby from rising out of the tubo of
mount. By this means the cap is made to revolve ovenly and smoothly in the
mount and yet be firmly attached to same. In the smaller of these tubes which is
firmly affixed to the cap I make a peculiarly shaped slot, the central part of which
is of an archimedian form and near the top of this archimedian slot I form a
branch slot leading from it in a vertical direction, and at the top of the said
archimedian slot, another branch is made in a horizontal direction. The use of
this peculiarly formed slot will be hereafter explained. To the gallery of a burner
which is made in two parts I affix firmly three or four connecting pieces, and these
connecting pieces are constructed so as to pass smoothly through an aperture
piorced in the central part of the burner, between the cotton guides and the outer
rim. To the lower end of these connecting pieces I affix firmly another piece of
tube of such diameter as will enable it to work evenly and smoothly within the
smaller of the tubes aforesaid which is affixed to the cap or cover that revolves on
the mount fixed to the oil reservoir. At a given point in this third or smallest
piece of tube affixed to the lower end of the connecting pieces passing through the
central part of the burner I also make a screw stud hole to receive a screw stud.
Now the position of the vertical slot in the outer tube of mount and the
peculiarly formed slot in the tube of cap, and the stud hole in the innermost tube,
which is affixed to the connecting pieces of the gallery, are so arranged that a
screw stud is passed through the slots aforesaid and screwed firmly into the
screwed stud-hole in inner tube; thus connecting the three tubes. By revolving or
rotating the cap on the outside and on the top of the mount, the middle tube with
the archimedean slot also revolves. The head of the screw stud being in the
guiding slot and also in the archimedean slot, and thus it travels along the
archimedean or helical slot described and up or down the vertical guiding slot;
so that the stud carrying the gallery is made to rise parallel and in a vertical
direction and thus raising the gallery with the globe and chimney in a corre-
sponding vertical parallel direction and thereby leaving the wicks exposed for
trimming and lighting. When the stud aforenamed has travelled to the top of the
archimede in slot, by continuing the revolving or rotation of the cap the stud is
caused to travel into the horizontal branch slot at the top of archimedean slot
thereby becoming locked in its raised position for trimming or lighting the wicks.
By then revolving the cap in the opposite direction the stud is made to travel
along the horizontal branch and down the archimedean slot to its lowest point,
which lowers the burner to its normal or burning position and by continuing the
revolving motion of the cap, the stud will travel along the horizontal branch slot at
the bottom of the archimedian slot thereby locking the burner in its normal or
burning position. When in its normal or burning position the cap may be a
revolved so that the stud will travel the full length of the horizontal branch slot
without in any way raising the burner.
In the space described on the top part of cap and mount two longitudinal
apertures are made in such a position that when the screw stud is exactly at the
bottom of the archimedian slot they (the two apertures) are exactly opposite each
other and so leave an open aperture in both caps and mount, through which the
oil reservoir may to filled or replenished from an ordinary jug or spouted can and
on the underside of the mount I construct an air-tight metallic buoy to act as an
indicator to show or indicate when the oil reservoir is filled. This indicator is
arranged to the under part of the vertical tube of the mount and is so constructed
that it rises and falls with the oil in the reservoir so that when the reservoir is
filled with oil, the buoyant indicator presents to the aperture a white enamel label
with the word FULL in black letters, and so prevents overfilling. On the oil
reservoir becoming filled the cap is revolved so as to make the screw stud to
pass to the extreme end of the horizontal slot by which means the filling apertures
are closed, and the burner locked in its normal or burning position. By the means

page_text: described, the oil reservoir can be filled or replenished with oil, without removing
or raising the burner or any part thereof.
To release the burner and gallery for cleaning or to renew the wicks; revolve
the cap until the burner is near the raised position, which is to show by the
indicating point on revolving cap coming opposite to the slot in the lower rim of
burner, then place the fingers under the burner, taking the weight of the burner
off the lower edge of the archimedean or helical slot, so that the screw stud will
pass through the vertical slot instead of into the horizontal slot, and so pass out at
the top of the cap and mount.
Dated the Twenty-second day of February One thousand eight hundred and

page_text: I, THOMAS TAYLOR of Havelock Place, Hanley, in the County of Stafford
Manufacturer, do hereby declare the nature of said Invention for "IMPROVEMENTS
IN LAMPS FOR BURNING VOLATILE, HYDRO-CARBON AND OTHER OILS" and in
what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:-
My Invention has reference principally to the burner and gallery part of lamps
for burning volatile and fixed oils; and my Invention has for its object to facilitate
the trimming of the wick or wicks and the lighting of the said wicks, and also the
refilling or replenishing of the oil reservoir; and my said Invention consists of the
construction and arrangement of the parts hereinafter described of the said lamps,
whereby the gallery supporting and carrying the burner, chimney, globe, dome or
reflector can be raised for trimming or relighting the wicks without the chimney,
globe or other parts supported by the gallery being removed; and for refilling or
replenishing the oil reservoir without disturbing or raising the burner, or any part
thereof, without separating or detaching any parts of the lamp; and my said
Invention consists in indicating, when the oil reservoir of the said lamp is full of
oil, and thereby preventing accident, by overfilling and spilling of the oil. I will
describe my Invention as applied to a lamp for burning petroleum or other volatile
oils.
Upon the mouth of the reservoir, a metallic mount or collar is situated preferably
of larger diameter than the mount or collar of an ordinary duplex lamp. The
said collar or mount is furnished with a circular tube attached upon the inner circlo
or inside of the mount, which tube descends vertically into the oil reservoir and
forms the guide or neck in which the rotating mount hereinafter described turns.
The neck or tube of the mount described is provided with one or more vertical
slots in which a pin or pins on the frame carried by the burner is confined, and
compelled to move vertically and traverse on the rotation of the propeller mount
hereinafter described.
A second metallic cap or cover which I call the propeller mount fits evenly and
revolves truly on the top of the reservoir mount as before described. This propeller
mount and cap has a depending tube or sleeve which works within the vertical
tube attached to the oil reservoir mount and projects sufficiently below the tube
or socket in which it works, so that its attachment or connection may be effected
by a screw or by a flange on the end of the tube, so that the propeller mount shall
be capable of rotating only and unable to rise or be withdrawn from the sleeve or
socket mount in which it works; by this means the cap is made to revolve evenly
and smoothly within the reservoir mount and yet be connected thereto.
The depending tube of the propeller mount is provided with one or more
inclined or helical slots running diagonally across the body of the tube, at the top
of this helical slot (or slots) the raising and lowering pin (or pins) hereinbefore
described, rests when the burner is raised or in a position suitable for the trimming
of the wicks, and at the termination of the helical slot described, a vertical slot is
situated up which the pin passes when the parts are taken to pieces. The helical
slot has also at its bottom a horizontal slot in which the pin moves for the closing
of the reservoir filling holes in the mount and cap, when the burner is lowered or
in its normal or burning position.
To the gallery of the burner three or four vertical connecting pieces are attached
which move in apertures pierced through the burner body surrounding the wick

page_text: tubes, and to the lower end of these connecting or carrying pieces a short annular
guiding tube is connected and affixed. This annular carrying tube is of the same
size as the internal diameter of the tube of the propeller mount in which it rises
and falls, and upon the outer periphery a screwed stud (or studs) is fixed, which
is operated upon by the helical slot (or slots) in the tube of the propeller mount
in which it engages. The said stud therefore engages and moves both in the
helical slot of the propeller mount and in the vertical slot in the reservoir mount.
By now rotating or turning the propeller mount from right to left or vice-versa
its depending tube moving inside the vertical tube of the reservoir mount, rotates,
and that in consequence of the stud being in the vertical guiding slot and the
helical slot in the tube of the propeller mount, the rotation of the said helical slot
compels the stud to travel therein and at the same time to move up the vertical
slot in the concentric tube of the reservoir mount, and as the stud forms a fixed
part of the moveable framing carrying the gallery the moving upwards of the stud
necessarily raises the gallery both in a parallel and in a vertical direction, and
exposes the ends of the wicks which can be trimmed and lighted as described,
the globe and chimney carried by the gallery is thereby made to rise in a
corresponding vertical and parallel direction leaving the wicks exposed for
trimming or lighting.
As the before described position of the gallery is represented fully raised, I wish
it to be understood that the gallery is self-sustaining at any position in which it
has been brought or raised by the rotation of the propeller mount.
By now rotating the cap in the opposite direction, the stud is made to travel
down the archimedean slot to its lowest position, this lowers the gallery to its
normal or burning position, and by slightly continuing the rotation the moveable
gallery rests in the burning position of the lamp so that when in its down or
normal position, the cap or mount may be revolved so that the stud will travel
without in any way raising the burnor.
In case of large lamps with heavy globes or chimneys, or puncha lamps it may
be necessary to have more than one slot, on account of the increased weight.
The reservoir may be filled through openings passing through the reservoir and
propeller mounts, and are so arranged that when the stud as described is exactly
at the bottom of the helical slot the respective apertures in the two mounts aro
coincident and oil can be supplied through the said aperture from an ordinary jug
5 or a spouted can, but on the further movement of the stud into the horizontal slot,
the opening in the reservoir mount is covered by the solid metal of the propeller
mount. And on the inside of the reservoir mount I construct an air-tight metallic
buoy to act as an indicator to show or indicate when the oil reservoir is full.
This indicator is arranged to the under part of the vertical tube of the mount and
) is so constructed that it rises and falls. with the oil in the reservoir; so that when
the reservoir is filled with oil, the buoyant indicator presents to the aperture
a white enamel label with the word. FULL in black letters, and so prevents
overfilling. On the oil reservoir becoming filled, the cap is revolved to pass the
screw stud into the extreme end of the horizontal alot, by which means the filling
5 apertures are closed and the burner locked in its normal or burning position. By
the means described the oil reservoir can be filled or replenished with oil without
removing or raising the burner or any part thereof.
To release the burner and gallery for cleaning, or to renew the wicks, revolve the
cap until the burner is near the raised position, which is to show by the indicating
Opoint on revolving cap coming opposite to the slot in the lower rim of burner, then
place the fingers under the burner, taking the weight of the burner off the lower
edge of the archimedean or helical slot, so that the screw stud will pass through
the vertical slot, and so pass out at the top of the cap and mount. To replace the
burner after cleansing or inserting new wicks therein, see that the screw stud is
5 placed in the slot of the rotating cap, it will then find its proper position by
gravitation.

page_text: Having now described the nature of my Invention, I will now proceed to
describe with reference to the accompanying Drawings, the manner in which my
Invention is to be performed.
Figure 1 represents an end elevation of a portion of a lamp constructed
according to my Invention for burning liquid volatile hydro-carbon oil, the burner
is shown in its normal or burning position. Figure 2 shows the same view as
Figure 1 with the gallery raised in order to gain access to the wicks for trimming
or for lighting. Figure 3 shows a transverse vertical section of Figure 1 leaving
the gallery in elevation. This view exhibits the helical slot which is in this
position at the back as indicated in dotted lines. The concentric carrier tube with
its lifting stud is shown in elevation and the wicks passing through the centre
thereof. Figure 4 shows a like vertical section as Figure 3 with the gallery raised
and the stud resting at the top of the helical slot. In this view the carrier tubo
is shown partly in section in order to better exhibit the parts; the depending tube
of the propeller mount is broken off in order to better exhibit the parts enclosed
within its circumference or interior.
Figure 5 shows in elevation the burner and parts connected therewith with the
gallery in the act of being raised and the vertical sliding slot turned round at right
angles to that represented in Figures 3 and 4; the stud is shown partly raised in
the vertical slot with the helical slot shown in dotted lines at the back. Figure 6
shows in elevation partly broken off, the propeller mount and tube with the carrier
stud in the top horizontal branch of the helical slot or in the fully raised position
of the gallery.
Figure 7 shows the gallery body of the burner and carrier tube combined, the
connection being effected by the connecting carrier rods.
Figure 8 is a plan of Figure 7 on the dotted lines.
Figure 9 is the reservoir mount and its concentric depending tube.
Figure 10 is a plan of the mountings of the burner, taken in section through the
neck of the said burner. Figure 11 is a plan of Figure 9 while Figure 12 shows
the reservoir and mounts partly in section, in order to exhibit the buoy indicator
presenting the letters FULL to the openings in the respective mounts.
Figure 13 represents my Invention applied to the ordinary mount of a hydro-
carbon lamp; the oil reservoir is or may be filled through the opening in the
combined mount and cap by a spouted can. The rotation of the propeller mount
being effected by the milled beading or roll at the lower part of the said mount.
The same letters indicate the same parts in the several Figures of the Drawings.
a is the gallery and burner which supports the chimney and globe of the lamp.
bis the body of the burner c is the propeller mount and c³ the milled flange for
rotating the said mount. c is the depending tube, and the helical slot running
diagonally down the body of the said tube. d is the reservoir mount and d* its
concentric tube which surrounds and is concentric with depending propeller mount
tube c. d³ is the vertical slot in the concentric mount tube d' in which the pin b*
of the concentric carrier tube b³ traverses when the gallery and parts connected
with it are raised or lowered. e is the oil reservoir and fis the buoyant indicator
for indicating when the oil reservoir has been sufficiently filled. g. g. are the wicks
and g³ the end to be trimmed. When it is wished to raise the gallery a in order to gain
access to the ends of the wicks g³. g either for trimming or for lighting it is only
necessary to rotate from right to left the milled Bango of the propeller mount o
when the depending tube c³ moving inside the vertical tube d³ of the reservoir
mount rotates and that in consequence of the stud b being in the vertical guiding
slot d³ and in the helical slot c. The rotation of the said helical slot compels
the stud 6' to travel from bottom to top, and at the same time to move up the
vertical slot on the concentric tube d³ of the reservoir mount d, and as the
stud b' is fixed to the moveable concentric carrier tube 6* which carries the gallery a
the moving upwards of the stud in the vertical slot by the rotation of the helical
slot o, in which it works, necessarily raises the gallery a in a vertical and parallel

page_text: direction, and exposes the ends of the wicks g² us best seen in Figures 2 and 4, the
wicks can now be trimmed or lighted as the case may be. The globe and chimney
raised by the gallery is thereby made to rise in a vertical and parallel direction
and remain in any position to which it has been brought; that is, the gallery will
be sustained and remain in any intermediate position to which it has been raised
by the rotation of tho propeller mount, as represented in Figure 5; so that the
burner and gallery when fully or only partially raised is self sustaining and
remains in such raised position so long as rotation is not imparted to the propeller
mount; after the wicks g g' have been trimmed and lighted Figure 4, it is only
necessary to rotate the propeller mount c' in the opposite direction when the stud
carrying the gallery and parts connected therewith is made to travel down tho
incline slot to its lowest position as best seen in Figure 3 the rotation of the
helical slot and the travelling of the stud down the vertical slot d³ lowers the gallery
and burner to its normal or burning position and by slightly continuing the rotation
after the stud has reached the bottom of the slot the moveable gallery remains
stationary by the stud d' passing into the lower slot c as best seen in Figure 3.
The reservoir may be replenished with oil through the respective openings h
and i in the mounts c and d; these openings are so arranged that when the stud b*
arrives at the bottom of the helical slot c and marked c the respective apertures
in the mounts h and i are coincident as represented in Figure 12 in which oil has
been supplied to the reservoir, and the buoyant indicator fraised, indicating that
the reservoir is full. The further rotation of the propeller mount covers the
aperture eye of the reservoir mount, as represented in Figures 3 and 4.
The buoyant indicator f consists of a hollow metallic shell hinged at f* to the
inside of the reservoir mount d as shown in Figures 3 and 4, the indicator rises
and falls with the liquid so that when sufficient liquid has been poured into the
reservoir the buoyant indicator presents to the coincident apertures a white
enamelled label with the word FULL and so prevents overfilling as indicated
in Figures 11 and 12. By the above means the oil reservoir can be filled with
oil without removing the burner.
To release the burner and gallery for cleaning or otherwise, revolve the propeller
mount c until the pin b comes opposite the slot cs and also the snugs b³ 6º come
opposito the openings cc when the parts of the lamp can be readily separated as
fully described in the last part of the introduction to this Specification. It will
therefore be seen that the burner a, is incapable of being raised or detached from
the body b and mount, either in its fully raised position for lighting and trimming,
or in its normal position for burning, so that the parts can only be separated or
detached when in a position midway about between lighting and burning. To
replace the burner it is only necessary for the snugs on the burner to be placed
into the slots in the propeller mount, when by rotating the propeller mount by
its milled flange the body of the burner is again attached to the lamp and let it
be understood that lamps made according to my Invention can have their wicks
trimmed, the lamp lighted and the lamp reservoir supplied with oil without the
necessity of detaching any part of the lamp.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performned, 1 declare that what
I claim is improvements in lamps for burning volatile, hydro-carbon and other
oils.
First. Lifting or raising the moveable gallery or shade and chimney holder from
the body of the lamp in a vertical and parallel direction for lighting the said lamp,
or for the trimming of the wicks thereof, by means of a stud which is raised by
the rotation of a helical slot running across a depending tube carried by a propellor
mount; that is to say, a stud or pin on the lower framing carrying the gallery or
shade holder, is caused to rise and fall within a longitudinal slot by means of a
helical groove (crossing a depending tube) which is rotated by a propeller mount
or collar the parts being constructed and acting substantially for the purpose as
hereinbefore described and illustrated in the several Figures of the Drawings,

page_text: Secondly. The construction and combination of the parts hereinbefore described
and illustrated in the accompanying Drawings for raising, lowering and supporting
the gallery or shade holdor and parts connected with it for the purpose of gaining
access to the wicks for lighting or trimining, the parts being arranged and working
substantially in the way as described and illustrated.
Thirdly. A rotating propeller cap marked cc³ situated upon the reservoir mount
for raising, lowering and fixing the gallery and parts carried by it as described
and illustrated.
Fourthly. The coincident openings marked h. i. in the respective mount and
cap c d for the purpose of tilling the reservoir with oil, the covering and un-overing
of the apertures being effected in the way as described and illustrated, also the
buoyant indicator marked f, for indicating when the oil reservoir is full as described
and set forth in Figures 3, 4 12 and 13 of the accompanying Drawings.
N