Year: 1886

page_text: Date of Application, 28th May, 1886.
Complete Left, 28th Feb., 1887.
Complete Accepted, 3rd May, 1887,
I JAMES STOTT of 174 Fleet Street, City of London, Gas Governor Manufacturer
do hereby declare the nature of my said invention to be as follows:-
The object of my invention is to construct a self contained (liquid) gas regulator for
single or cluster lights in such a manner that the bell or float which dips in the
mercury, glycerine or the like shall have a true motion up and down over a tube rising to
near the top of the bell by a pin on its underside riding in the eyes of two brackets or
Crossbars these serving also to centralize a conical tip which closes more or less,
according to the height of the bell the outlet from the appliance to the burner, said
outlet being formed in a depending leg of a top cover which is preferably screwed on
to the lower part or otherwise secured in a gas tight manner.
The bell or float is perforated and the perforation may be of a given size for the
passage of the gas from the interior of the bell to the chamber of the apparatus to suit
the particular flame or number of flames or the perforation may be larger than the
required size and be provided with a sliding or a swivel cover which can close the
opening more or less to suit the size of flame or number of flames.
The apparatus is preferably of cylindrical or barrel form with a little clearance
between the bell and the casing for the free motion of the bell as a dip or seal and the
guide eyes are so made as not to interfere with the action of the bell should the
appliance be set aslant.
The depending leg is of such a depth as to prevent the mercury or glycerine
escaping when the apparatus is being moved or when turned upside down from an
accident or other cause.
By this invention a gas regulator can be sent from the factory ready charged with
mercury glycerine or the like and be handled in any manner without escape of
mercury and can be set or screwed on to an ordinary branch, bracket, or post with
facility and be in perfect working order.
H. GARDNER,
166, Fleet Street, London,
Agent for the said J. Stott,

page_text: An Improved (Liquid) Gas Regulator for Single or Cluster Lights.
I JAMES STOTT, of 174, Fleet Street, city of London, Gas Governor Manufacturer
do hereby declare the nature of my said invention and in what manner the same is to
be performed to be particularly described and ascertained in and by the following
statement:-
The object of my invention is to construct a self contained (liquid) gas regulator for
single or cluster lights in such a manner that the bell or float which dips into the
mercury, glycerine or the like shall have a true motion up and down over a tube
rising to near the top of the bell by a pin on its underside riding in the eyes of two
brackets or cross bars these serving also to centralise a conical tip-which closes―
more or less according to the height of the bell-the outlet from the appliance to the
burner, said outlet being formed in a depending leg of a top cover which is preferably
screwed on to the lower part or otherwise secured in a gas tight manner.
The bell or float is perforated and the perforations may be of a given size for the
passage of the gas from the interior of the bell to the chamber of the apparatus to
suit the particular flame or number of flames, or the perforation may be larger than
the required size and be provided with a sliding or swivel cover which can close the
opening more or less to suit the size of flame or number of flames.
The apparatus is preferably of cylindrical or barrel form with a little clearance
between the bell and the casing for the free motion of the bell as a dip or scal, and
the guide eyes are so made as not to interfere with the action of the bell should the
appliance be set aslant.
The depending leg is of such a depth as to prevent the mercury or glycerine
escaping when the apparatus is being moved or when turned upside down from an
accident or other cause.
For the purpose of my invention 1 affix to the dome of a gas governing bell, having
two or more holes or apertures in it, a shaped disc also provided with corresponding
number of holes or apertures, said disc being shiftable in a circular direction to open
the passages to the fullest extent or to diminish said apertures to determine the
quantity of gas that shall pass through. Thus, in the event of the quality of the gas
made by any company being reduced from, say, 30 candle to, say, 20 candle power it
would be necessary to pass a larger number of feet through the burner in order to
give the same illuminating power, this is provided for by simply shifting the disc to
increase the size of the apertures. The same operation could be performed with the
disc in the reverse order in the event of the quality of the gas being increased.
I am aware that gas governing bells having a hole in the dome has been used but
no provision was made for meeting the increased quantity except by enlarging the
aperture so that should such an aperture be enlarged-and the company go back to
the previous quality of the gas the bell would be useless, and a new one would have
to be fitted in the apparatus.
By my invention the bell is retained for any variation in the quality of the gas or
the number of feet to be passed per hour.
-
In connection with my many holed dome and shiftable disc before referred to I use
a depending piece of pipe in the cover of the apparatus and so make the apparatus a

page_text: self container of mercury or other liquid without fear of spilling the liquid during
transport or other cause. The depending pipe of the cover has a seating edge for a
conical valve on the disc to enter to close the pipe passage more or less and so
equilibriate the bell.
The disc has also a stem provided with a nut and washer by which the disc is
secured in position and made gas tight. The stem is of such a length that it passes
through one or more bridge pieces to guide it and produce a true vertical motion of
the bell and consequently a, level dip of the bell in the mercury.
The annexed drawings Figures 1, 2, 3 and 4 show my invention.
A is the casing. B the gas inlet. C the mercury bason. D the dip bell or float
(dome shaped), E, E, the holes therein.
F is the disc and G, G the holes corresponding to those in the dome. H the
spindle on which the disc can be turned to cover the holes E, E, more or less. I is
the valve on the disc. J depending pipe cast with cover K.
In Figure 2 in lieu of making holes E in the bell D I slot the stem of the valve I
this being screw threaded for adjustment by turning the disc F to regulate the degree
of opening and control the flow of gas to the burner.
The slots are of different lengths and as one, i.c. the longest is uncovered only
sufficient gas will pass for say 4 cubic feet per hour; by turning the disc F, a second
slot can be uncovered which with the first slot will give passage for say 6 cubic feet
per hour, and again turning the disc F a third slot may be uncovered which with the
first and second would give passage to say 8 cubic feet per hour and so on.
The bell D is in a piece with or is attached to the disc F and as the disc is turned
to uncover the vertical slots in the stem of the valve I, which slots commence from the
lower end of the stem, the second or the third slot will be opened for the required
increased quantity of gas to pass.
The bell D may be loose from the disc F so that the disc F only need be turned,
the bell D then follows the disc if the disc F be turned to move upwards when the gas
is turned on, the bell being very sensitive to any incoming pressure.
LL guides for vertical action of spindle H. M, burner.
By this invention a gas regulator can be sent from the factory ready charged with
mercury glycerine or the like and be handled in any manner without escape of
mercury and can be set or screwed on to an ordinary branch, bracket or post, with
facility and be in perfect working order.
Having now particularly described and ascertained the nature of my said invention
and in what manner the same is to be performed I declare that what I claim is :-
1. In a gas regulator for street lamps a centrally pivotted yet perforated shiftable
disc F on the dome of a governing bell D as and for the purpose described and sub-
stantially as shown in the annexed drawings.
2. In a gas regulator for street lamps or the like the depending pipe J of the
cover K as a safe guard to the mercury as described and as a seating for a conical
valve I as represented in the annexed drawings.
3. In a gas regulator for street lamps or the like, the combination of a centrally
pivotted shiftable disc F on the dome of the bell D to regulate the passage of gas
when used with the depending pipe J of the cover K as a mercury guard and valve
seating all as herein described and substantially as shown in the annexed drawings.
1
201
CT 1007
H. GARDNER,
166, Fleet Street, London,
Agent for the said J. Stott.