Improvements in Oil Lamp or like Burners.
Year: 1897

page_text: Date of Application, 23rd Feb., 1397-Accepted, 15th May, 1897
COMPLETE SPECIFICATION.
Improvements in Oil Lamp or like Burners.
I, FRANCIS PATRICK BOLAND, of 58 Belmont Avenue, Providence, in the
State of Rhode Island, United States of America, Mechanical 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:
My present invention relates to improvements in kerosene burners, of the class
having devices adapted to extinguish the flame automatically by the act of
turning down the wicks in the wick-tubes. The invention forming the subject of
this application for a patent consists essentially in the combination, in a kerosene-
burner having a beveled wick-tube and wick-adjusting wheel, of a pivotally
mounted extinguisher member or short tube inclosing the said beveled portion
of the wick-tube and adapted to rest against one side of the wick, a combined
counterweight and heat conductor extending laterally from the lower part of the
extinguisher-tube, and a downward extending plate connected with the extinguisher
member and in substantially continuous engagement with said wick-adjusting
wheel, whereby upon lowering the burning wick the extinguisher automatically
swings into engagement with the beveled face of the wick-tube, thus extinguishing
the flame and at the same time automatically swinging the lower end of said plate
into the space lying between the contiguous tooth and the adjacent face of the
wick-tube and preventing further downward movement of the wick, all as will be
more fully hereinafter set forth and claimed.
In the accompanying sheet of drawings,
Figure 1 is a side elevation of a lamp burner embodying my improvements.
Fig. 2 is a transverse central section of the same, showing the wick raised, as
when burning.
Fig. 3 is a corresponding sectional view, enlarged.
Fig. 4 shows the extinguisher and locking device or stop in action, the wick
being lowered in the wick-tube.
Fig. 5 is a perspective view of the combined extinguisher and stop member, and
Fig. 6 is a similar view of the wick-tube, provided with ears and forming pivots
for the extinguisher.
I may state that while I have represented my improvement applied to the burner
of a small or hand lamp, it is obvious that it is equally well adapted to larger
burners and other types of well-known lamps, oil-stoves, &c., employing wicks
and means for controlling the movement of the wicks in the wick-tubes.
In the drawings, A indicates the burner as a whole, and provided with my
present improvements. The burner-base or body a is adapted to be screwed to a
amp as usual. The flat wick-tube b is located centrally of the burner and
extends upwardly therethrough; a slotted cone or cap c is hinged to and surmounts
the burner and incloses the upper portion of the wick-tube, &c., when in use, as
common.
At or below the base of the cap c the burner is provided with a horizontally
rranged perforated plate or air-distributer d, through which the fixed wick-tube b
asses, thereby forming an air-space or chamber d into which cool air is drawn
nd from which the said air flows upwardly to ai combustion. The lower wall of
aid chamber d' is cut away contiguous to the tube b to freely receive the locking-
late f³, soon to be described. Below said plate are mounted the feed-wheels w,
FD

page_text: the latter being fixed to the horizontal shaft or spindle s, and adapted to pass
through openings, as 68 Fig. 6, formed in the adjacent side of the wick-tube as
common.
The following description relates more particularly to the novel features of my
invention―
The upper part of the wick-tube above plate d is cut across from the top
downward on one side so as to form beveled edges m; thus it will be seen that the
wick is exposed but unsupported by the tube on the side contiguous to its said
cut-away portion. In order to provide a support for the said exposed part of the
wick 1 employ the extinguisher member f, the same consisting essentially of a flat
tube loosely surrounding the upper part of the wick-tube. This piece is so
arranged that it not only supports the wick laterally but it practically constitutes
the tube proper through which the wick projects when burning. The extinguisher f
is pivoted at its lower end to the fixed wick-tube by means of bent lateral
projections capable of oscillation in ears e¹ secured to or integral with the wick-
tube. As drawn, however, I have represented a holder e secured to the exterior of
the tube b, the former being provided with said ears. Thus it will be seen that
the swinging movement of the extinguisher is limited by the walls of the wick-
tube; that is to say, when the wick is raised the parts b and fare substantially
parallel or concentric, and when the wick is lowered in the tube the concurrent
angular movement of the extinguisher is continued until arrested by the said beveled
edges m, thus closing the mouth of the wick-tube and practically excluding air
from the corresponding end of the wick.
The side of the extinguisher, opposite the pivot point, is provided at its lower
end with a comparatively large lateral extension; this latter not only forms a
counter-weight to automatically ensure the closure of the wick-tube when the
wick is lowered but it also serves to conduct heat downward from the burning
wick, thereby to a considerable extent preventing the wick-tube and extinguisher
from getting too hot. It will be seen that the counter-weighted portion /2 is
located in the said air space or chamber d¹ below the perforated plate d.
Another feature of my invention resides in providing the under side of the said
extension with a substantially vertical locking-plate 3, having its lower end or
edge in practically continuous engagement with the pair of said feed or wick-
adjusting wheels w. The plate may be integral with the extinguisher member
or it may be attached thereto in any well known manner. I prefer, however, to
make the plate rigid with the extension portion f2 and arranged at substantially
right angles to its under surface, as shown.
I may add that the pitch or angular distance from one tooth to another
circumferentially of the wheels w is or may be such that it will practically equal
the vertical movement of the wick from the raised to the lowered position. In Fig. 3
it will be seen that the locking-plate by reason of its proximity to the teeth of the
wheels w will, when the latter are turned to the left as in lowering the wick, be
forcibly moved towards the wick-tube until it is arrested by the side of the wick-
tube, see Fig. 4. Thus it is apparent that even though the extinguisher should
accidentally fail to operate from any cause the action of the wheel-teeth upon the
locking-plate (in lowering the wick) will positively ensure the necessary movement
of the extinguisher and at the same time lock the feed-wheels, and thus prevent the
wick from being lowered past them into the lamp. This feature of my invention
I consider of especial value. Figure 4 shows clearly the relation of the parts when
thus locked. The plate 3 in no wise obstructs or prevents a free movement of the
wheels in the opposite direction when the wick is to be raised.
Having now particularly described and ascertained the nature of my said inven
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. In a lamp or like burner, the combination of a swinging annular extinguishe
member surunding the unner nortion of the wick-tube. provided with a latera

page_text: extension forming a weight and heat conductor, and a locking-plate integral with
said extinguisher member having its lower end arranged to engage the teeth of the
usual wick-adjusting wheels, substantially as herein before described and for the
purpose set forth.
a.
2. In a lamp or like burner, the combination with the wick-tube having its
upper part beveled on one side, and toothed wheels extending inwardly through
the lower side of said tube for actuating the wick, of the swinging extinguisher f¨
arranged to automatically close the said beveled part of the wick-tube, and
downward extending locking-plate or stop f³ integral with or rigidly secured to the
extinguisher member and in practically continuous engagement with the teeth of
the wick-adjusting wheels, whereby the wick may be raised unobstructedly but is.
prevented from being lowered past the wheels, substantially as hereinbefore.
described.
3. In a lamp or like burner, the wick-tube beveled across on one side at its upper
end portion, a centre space or chamber, as d', into which cool air enters, and
toothed feed-wheels mounted below said chamber, in combination with the
swinging extinguisher member of inclosing the said beveled part of the wick-tube,
having an integrally formed extension f forming a combined weight and heat
conductor located in said air chamber, and the locking-plate or stop f³ projecting
downwardly from said extension f' having its lower end adapted to engage the
teeth of the feed-wheels, whereby the rotation of the latter as in elevating the
wick uncovers the wick-tube, while a reverse movement of the wheels, as in
lowering the wick, closes the tube and at the same time interposes the said stop f³
between the face of the tube and the adjacent teeth of the wheels, substantially as.
herein before described and for the purpose set forth.
11
1 1
1007
FRANCIS PATRICK BOLAND.