Improvements in and connected with Safety Valves for Kitchen Range, Steam, and Heating Apparatus Boilers.
Year: 1894

page_text: Date of Application, 4th July, 1094
Complete Specification Left, 3rd Apr., 1895-Accepted, 4th May, 1895
PROVISIONAL SPECIFICATION.
Improvements in and connected with Safety Valves for Kitchen
Range, Steam, and Heating Apparatus Boilers.
I, JONATHAN KITCHEN of The Welded Boiler Works, Derby in the County
of Derby, Engineer, do hereby declare the nature of this invention to be as
follows:-
The objects of my invention are to provide a safety valve for kitchen range,
steam and beating apparatus boilers, having the working parts concealed inside the
boiler, so that it cannot possibly get out of order through the accumulation of soot
or dust in the working parts; will not require re-adjusting when once fixed; may
be fixed in almost any position; may be combined with the manhole cover in the
case of kitchen range boilers or may be simply let into the boiler plate of other
boilers in the latter case the top of the valve would come flush or almost flush
with the top of the boiler and when combined with the manhole cover the total
height above the top of the boiler need not exceed 1 inches, and is protected by
a shield, thus there is no danger of damaging or deranging it when poking or
clearing the fire, as is the case with a safety valve projecting outwardly of the
boiler.
In carrying out my said invention 1 screw or otherwise fix in the plate of the
boiler or in the manhole cover of the same, a casing projecting inside the boiler
the outer end of the said casing coming flush or nearly flush with the outside of
the boiler or manhole cover, this casing carries an internal flange or projection near
its outer end and the face of the outer end is formed as a seating for the valve
which fits thereto, the spindle of the said valve passing inwards through the casing
and on its inner end is screwed or otherwise fixed an adjustable bearing between
which and the internal flange before mentioned I place a spring tending norinally
to keep the valve up to its seating the said spring being adjusted to a given pressure
by means of the adjustable bearing on the end of the valve spindle: the casing is
perforated for the admission of hot water or steam to the interior of the said
casing or chamber and to the head of the valve and when a certain pressure is
reached the valve is lifted off its seating in the usual manner. I may provide any
suitable cover if desired for the valve, to keep durt away from the seating.
Dated this 3rd day of July 1894.
W. SWINDELL,
Agent for the Applicant.
Improvements in and connected with Safety Valves for Kitchen
Range, Steam, and Heating Apparatus Boilers.
I, JONATHAN KITCHEN of The Welded Boiler Works, Derby in the County of
Derby, 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 :-
The objects of my invention are to provide a safety valve for kitchen range,

page_text: steam and heating apparatus boilers having the working parts concealed inside the
boiler, so that it cannot possibly get out of order through the accumulation of soot
or dust in the working parts, will not require re-adjusting when once fixed; may be
fixed in almost any position; may be combined with the manhole cover in the
case of kitchen range boilers or may be simply let into the boiler plate of other
boilers; the valve is protected by a shield and there is thus no danger of
damaging or deranging it when poking or clearing the fire as is the case with a
safety valve projecting outwardly of the boiler without a shield.
In describing my invention reference will be had to the accompanying sheet of
drawings which will be deemed to form a part of this Specification, and upon
which
. Figure 1 is a vertical section shewing my improved safety valve fitted to a
boiler without a manhole cover.
Figure 2 is a similar view shewing my improved safety valve fitted to a boiler
with a manhole cover.
In carrying out my said invention I screw or otherwise fix in the plate A of the
boiler or in the manhole cover B of same a casing C depending therefrom inside
the boiler, the outer end of the said casing coming nearly flush with or projecting
slightly beyond the top of the boiler or manhole cover, this casing carries an
internal flange or projection D near its outer end, and the face of the outer end
at E is formed as a seating for the valve F which fits thereto, the spindle G of the
said valve passing inwards through the casing and on its inner end is screwed or
otherwise fixed an adjustable bearing H between which and the internal flange
before mentioned 1 place a spring I tending normally to keep the valve on its
seating the said spring being adjusted to any given pressure by means of the
adjustable bearing or nut H on the end of the valve spindle; the casing is perforated
as at K for the admission of hot water or steam to the interior of the said casing
or chamber and to the head of the valve. When the given pressure is reached the
valve is lifted off its seating and the steam or hot water escapes in the direction of
the arrows. I may provide any suitable cover such as L if. desired for the valve,
to keep dust away from the seating, the open end M of which is preferably placed
to the back of the fire place so that the draught may carry the dust &c. away from
it and so that in the event of an escape of steam or hot water the occupants of the
room may not be injured.
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 :-
The improvements in and connected with safety valves for kitchen range, steam
and heating apparatus boilers substantially as described herein and illustrated by the
accompanying sheet of drawings.
Dated this 2nd day of April 1895.
W. SWINDELL,
Agent for the Applicant.