Improvements in or connected with Extinguisher Mechanism for Lamps.
Year: 1890

page_text: Date of Application, 27th Jan., 1890
Complete Specification Left, 7th Mar., 1890-Accepted, 12th Apr., 1890
PROVISIONAL SPECIFICATION.
Improvements in or connected with Extinguisher Mechanism for
Lamps.
I HARRY DAIN HINKS, and JAMES HINKS & SON Limited, of Great Hampton Streot
Birmingham, in the county of Warwick Manufacturers, do hereby declare the nature
of this invention to be as follows:-
This invention relates to improvements in or connected with the extinguishing
mechanism of lamps, and has reference chiefly to non-automatic actions, where a
fulcrumed lever or levers are used; and its object is to simplify their construction,
after the following manner :-
Usually for the purpose of raising the extinguishers, a joint is made upon the
burner body, to receive the fulcrum of the operating lever, and its joint pin, a folerum
hole or bearing, being also of course necessary in the lever itself.
It is with the object to diminish this inconvenience and expense, that we have
devised this our invention.
Instead of interfering with the perforations in the burner body, in order to form a
fulcrum joint, such perforations are carried continuously around. In the bottom of
the burner, we make a small hole. We now cut out or stamp a rocking lever, having
no fulcrum hole for a joint pin, but having upon its underside a projection or tooth,
which enters freely, into the said hole in the bottom of the burner. This forms a
rocking fulcrum.
By reason of the lover or rocking bar being engaged at its inner end, with the
central vertical slide attached to the extinguishers, and again engaged by the aforesaid
tooth in the hole, and further in its passing through the slot in the body of the burner,
it is held or controlled in its acting position, without the aid of the usual fulcrum pin,
which not only dispenses with such pin, but also with much of the friction existing in
its use.
The outer end of the lever or rocking bar is suitably shaped to suit taste or design.
In using this our improved rocking bar, with extinguishers having no springs upon
their flaps, but which are closed by a trip action, similar as described and illustrated
in Specification No. 808 of 1888, a downward pressure upon the exterior of the lever,
only, is necessary.
Provision may be made in several ways to prevent the rocking bar accidentally
leaving the hole in which it works. Again, In some cases instead of this rocking bar,
we may dispense with the usual lever and its fulcrum, and the forming of the fulcrumn
joint upon the burner body; by employing a chain, cord, or other flexible medium,
the one end of which is secured to the extinguishers, or to the vertical slide between
them, and as low down as possible. This chain &c. is then carried over a bar, situated
as near the top of the burner as convenient, passing thence through the side of the
body, and hanging thence with a knob or other fitting at its lower end.
In most cases, where there is an arrangement of a spindle crossing the upper part
of the burner, in order to carry the arms &c. for raising the gallery &c., the cord or
chain would pass over the said spindle, thus substituting the spindle for the before-
mentioned bar.
In this case, also by reason of the adoption of the aforesaid trip action shutters, it
is only necessary to manipulate the knob &c. at the outer end of the chain, inasmuch
as the shutters &c. readily fall back into their normal position when let go.
Datad this 25th day of Tanum 1900
CHARLES T. POWELL,
Applicants' Agent.

page_text: . COMPLETE SPECIFICATION.
Improvements in or connected with Extinguisher Mechanism for
Lamps.
I, HARRY DAIN HINKS, and JAMES HINKS and SON Limited, of Great
Hampton Street, Birmingham, in the county of Warwick, Manufacturers 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 the improvements in extinguishing mechanism for lamps,
as hereinafter described.
Usually, that is, in present practice, for the purpose of raising the extinguishers, a
joint is made upon the burner body, to receive the fulcrum of the operating lever and
its joint pin, a fulerum hole or bearing being also of course, necessary in the lever
itself; and the object of this my invention is to provide an arrangement whereby the
fulerum joint hole upon the lever, and fulcrum pin, and the interference with the
ordinary perforations of the burner body, are dispensed with.
We will now proceed to more particularly describe how this our invention is to be
performed, having reference to the accompanying illustrative sheet of drawings, upon
which are figures and letters of reference, similar letters referring throughout the
several views to the same thing or part, and in which :-
Fig. 1, is a vertical section of a burner embracing this my invention, showing the
extinguishers down ;
Fig. 2 is a vertical section, shewing the extinguishers raised ;
Fig. 3, is a vertical section of a burner, showing this my invention in a modified
form, with the extinguishers down;
Fig. 4, shows the extinguishers raised;
Fig. 5 shows an end view with the extinguishers down; and
Fig. 6 shows an end view with the extinguishers raised.
a,
Instead of interfering with the ordinary perforations in the burner body in order
to form a fulcrum joint, such perforations are carried continuously around. In the
bottom of the burner, we make a small hole at b. We now cut out or stamp a
rocking lever bar c, having no fulcrum hole for a joint pin, but having upon its
underside a projection or tooth d, which enters freely into the said hole b, in the
bottom of the burner. This forms a rocking fulcrum.
By reason of the lever or rocking bar being engaged at its inner end e, with the
central vertical slide f, attached to the extinguishers 9, 9, and again engaged by the
aforesaid tooth d, in the hole b, and further, in its passing through the slot h, in the
body of the burner, it is held or controlled in its acting position, without the aid of
the usual fulcrum pin, which not only dispenses with such pin, but also with much
of the friction existing in its use.
The outer end of the lever or rocking bar is suitably shaped to suit taste or
design.
In using this our improved rocking bar, with extinguishers having no springs
upon their flaps, but which are closed by a trip action (similar as described and
illustrated in specification No. 808, of 1888) a downward pressure upon the exterior
of the lever only is necessary, inasmuch as their own weight is sufficient to bring
them down again into position. This trip action operates as follows:-
The shutters or flaps i, i, are provided with inclined arms j, j, (see Figs. 5 & 6),
k, is a fixed upright, the top of which is provided with stop pieces 1, 1. When the
sliding extinguishers g, g, have been lifted nearly to their full extent, the two
inclined arms j,j, strike against the stop pieces 1, 1. The continued motion of the
sliding extinguishers causes the said inclined arms to turn upon their pivots m, m,
and thereby to turn the flaps over and cover the wicks and extinguish the flames.
Again. In some cases instead of this rocking bar, we may attain the said object
of our invention, by employing a chain, cord, or other flexible medium n, (Figs. 3 & 4)
the one end of which is secured to the extinguishers, or to the vertical slide f, between

page_text: them, and as low down as possible. This chain &c. n, is then carried over a bar o,
situated as near the top of the burner as convenient, passing thence through the side
of the body, and hanging thence with a knob or other fitting p, at its lower end.
In most cases where there is an arrangement of a spindle crossing the upper part
of the burner, in order to carry the arms &c. for raising the gallery &c., the cord, or
chain would pass over the said spindle, thus substituting the spindle for the before-
mentioned bar.
In this case, also by reason of the adoption of the aforesaid trip action shutters, it
is only necessary to manipulate the knob &c. p, at the outer end of the chain, inasmuch
as the shutters &c. readily fall back into their normal position, when let go.
We are aware that prior to this our invention, that a trip action, similar to that
described in our specification, has been made, and therefore we do not claim any part
of such trip action, having described it only for general explanation of the other
parts.
Having now particularly described and ascertained the nature of our said invention,
and in what manner the same is to be performed we declare that what we
claim is :-
1st. The combination with the sliding extinguishers of a lamp, of the rocking lever
bar having a controlling projection d, taking into the hole b, substantially as described
and for the purpose specified.
2nd. In extinguishing mechanism for lamps the combination with the sliding
bar, and the extinguishers, of the flexible cord or chain n, and bar 0, substantially
as described and shown, and for the purpose specified.
Dated this 5th day of March 1990
CHARLES T. POWELL,
12, Cherry Street, Birmingham, Applicants' Agent.