Improvements in Automate G of Adjusting the same.
Year: 1886

page_text: Improvements in Automate G
of Adjusting the same.
I JAMES MACKENZIE of 48 Osnaburgh Street, London in the county of
Middlesex Gas 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 :—
This invention relates to certain improvements in automatic gas regulators and
in the means of adjusting the same and has for its objects firstly, to construct
a regulating apparatus for ensuring the best results in light for the quantity of gas
consumed and which shall also in a small and compact form specially be applicable
to one light burners of the modern type such as are employed in the "Wenham "
or "Bower" lamps, whether the gas inlet to such lamps be from below or from the
side or from above as in the case of suspended lamps; and secondly, to provide
means of adjusting the lift of the internal valve of gas regulators without taking
the apparatus to pieces.
In the annexed drawings Figures 1 and 2 are respectively an elevation and
section through centre of a small regulator constructed according to my improve-
ments for lamps placed in a vertical or horizontal position; Figure 3 is a section
through the centre of a small regulator suitable to suspended lamps; Figure 4 is a
plan on line y. 2. of figure 3, and Figure 5 is a section through the centre of an
ordinary gas regulator to which are applied my improved means of regulating and
adjusting the lift of the valve or valves. Similar letters refer to similar parts in
all of these figures.
According to my improved construction of regulator for a small number of
lamps or for one light burners shown in figures 1 and 2, gas enters through the
inlet pipe a and passes into the bell shaped receiver b contained in the casing a¹
the base of which dips into the usual mercury trough b¹. Two or more small
apertures c c are formed in b through which the gas passes into an upper chamber d,
on the top of which is screwed the cap d' with the delivery pipe d²; an inner
cap d³ is fitted into the casing and held in position by cap d', and in this a valve
seat e is formed and a delivery orifice e¹ which serves also as a guide for the'
spindle e of valve e³ which is provided with a milled ring f¹ around its periphery.
The spindle e² is screwed so that by turning the valve upon it its lift can be adjusted:
The spindle e passes through b. and its lower end is formed square and passing
through a square guiding hole formed in the bridge across the inlet pipe, thus
preventing the spindle turning round on adjustment of the valve. Weights fare
added to regulate the pressure required to lift b.
Figure 3 illustrates another improved construction of small regulator suitable to
suspended lamps. The suspending pipe a is branched, and the gas passes through
one side a as shown or both sides if desired into a passage or passages a² a' formed
in the body The casing a' is of the form shown and concentrically within it an

page_text: annular partition a³ is placed which forms the inner side of the mercury trough b¹;
a valve chamber in which is formed a valve seat e is screwed into the body and a
bridge guide is provided for the lower part of valve spindle e² which is formed
square as before described. A valve e³ is placed on spindle e², beneath its seat, and
the spindle c² passes up through a bell shaped receiver b dipping into the mercury
trough . The spindle is screwed and a milled adjusting nut f is provided thereon
for regulating the lift of the valve. The casing is fitted with a cap d' upon which
a guide tube d for the top of the valve spindle e² is fixed.
One or more delivery passages such as yg are formed leading from the internal
annular space a³ to the delivery pipe in a different plane from the inlet
passages a² a² which are separated from d² by a solid piece g¹. Weights ƒ ƒ are
provided to be applied to b for adjusting the regulator according to the varying
pressure from the mains. In gas regulators of the type illustrated in Figure 5 as
usually constructed the valve regulating the admission of gas to the delivery pipe
has been adjusted in the first instance and no means have been provided for
regulating the lift after fixing, except by taking the whole apparatus to pieces and
screwing the valve up or down as required or otherwise altering its position upon
its spindle, which is sometimes a tedious operation requiring considerable time
and skill.
To obviate this disadvantage I have devised the arrangement shown in figure 5,
by which the lift of the valve can be adjusted by simply turning the milled ring f¹,
without interfering with other parts.
The spindle e passes through a sleeve or tube h screwed or fixed through the
bell b, having a stop to prevent its rotation and provided with an external thread
above b, and an internal stuffing gland to prevent leakage past the spindle; on
the external thread the part h³ is screwed acting as a nut to fix the sleeve to the
bell and provided at its upper side with a loose nut h³ with milled ring f¹, in
which a female screw is formed to receive the screwed head of spindle e, the part
of the loose nut above the ring f¹is made hollow and in the hollow part the
guide d' fixed to the bridge works, the inner edge being bevelled off as shown for
lubricating the guide.
To prevent rotation of the valve spindle, and also the valve being screwed too
far up, a stop et is placed on the spindle working in a slot e in the sleeve / the
length of which is such that when valve e³ is screwed high enough further screwing
is arrested.
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.) An automatic gas regulator arranged constructed and operating as herein-
before described and illustrated by figures 1 and 2 of the annexed drawings.
2.) An automatic gas regulator for suspended lamps arranged constructed and
operating as herein before described and illustrated by figures 3 and 4 of annexed
drawings.
3.) The method of adjusting the lift of the internal valve of gas regulators
consisting of the combination of parts operating in conjunction with each other
and arranged substantially as and for the purposes described and illustrated.
:
Dated this bath 1
1000
J. C. CHAPMAN,
Agent for Applicant.