An Arrangement of Valves or Cocks to Protect from Accident the Boiler and Connections for Kitchen Ranges and the like during Frost.
Year: 1895

page_text: Date of Application, 20th Feb., 1895
Complete Specification Left, 16th Nov., 1895-Accepted, 11th Jan., 18961
Date of Application, 20th Feb., 1895
Complete Specification Left, 16th Nov., 1895-Accepted, 11th Jan., 1896]
PROVISIONAL SPECIFICATION.
An Arrangement of Valves or Cocks to Protect from Accident the
Boiler and Connections for Kitchen Ranges and the like during
Frost.
JAMES ANDREW 39 Canal Street Paisley N.B. Plumber do hereby declare the
nature of this invention to be as follows:-
I fix a valve or cock on the pipe leading from the cold water cistern to the
boiler, so that in the event of the tank or connection becoming frozen, the connection
may at once be shut off under this cock or valve, I fix a try cock a little under the
level of the inlet to the cistern of the highest circulating pipe from boiler to cistern
or tank, I can thus tell the height of the water in the cistern or tank and run off a
quantity as required.
On the top of the cistern or tank I place a cock or valve fitted with a filler so
that in the event of the water getting low in the cistern or tank it can be made up
this cock or valve to be kept open while the frost lasts, and may be secured
by a lock, the occupiers with this arrangement may use their range with perfect
safety.
Dated this 10th day of February 1895
An Arrangement of Valves or Cocks to Protect from Accident the
Boiler and Connections for Kitchen Ranges and the like during
Frost.
JAMES ANDREW, 39 Canal Street Paisley North Britain Plumber 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:-
In my invention for preventing accidents in time of frost to kitchen range boilers
I convert the main feed water pipe leading from the high level cold water tank
to the boiler or heater into two sections by means of a three way cock or valve
fitted on to said pipe at any desired point intermediate to the cistern and boiler.
Said three way cock bas its third or right angled port in communication with a pipe
which acts as an air pipe and overflow pipe. The port from the three way cock
referred to joins the aforesaid air and overflow pipe by means of a tee piece, the
air pipe leading upwards from one of the sockets and the overflow pipe leading
downwards from the bottom socket. The air pipe branch is led upwards to a point
a few inches above the level of the hot water tank crown, and the overflow pipe is
led downwards and discharges either into a water receiver or bell mouthed drain
pipe, in either case a space being left at the bottom of the overflow pipe to permit
FD

page_text: the effluent being seen. The top of said air pipe may or may not be fitted with a
plug or cap and the overflow pipe may be utilized as a means of drawing the water
from the boiler, tank and their connections.
At a lower level than said cock or valve, or, at a point intermediate to said 3 way
cock or valve and heater I fit on the main water feed pipe a try or test cock, the
open end being either directly open to the atmosphere or to a hot water receiver.
Said test or try cock serves to ascertain if the boiler and tank circulating pipes are
clear, and it also serves to ascertain how much much water is in the hot water
tank and also serves to act as an auxiliary bot water supply cock, for this reason
I prefer to fit ou said test cock on main feed pipe at a level supposed to be at or as
near as possible at the level of the centre of the hot water tank.
On the crown of the hot water tank I fit a cock or valve or combined cock and
filler to enable said tank being filled with water by hand or by means of an
auxiliary water supply pipe, said auxiliary water supply pipe being also provided
with a cock or valve to regulate the supply. Said combined cock and filler on
crown of tank being provided with any known system of locking arrangement
to guard against its being tampered with.
*1
In order that my invention be better understood I hereunto append one sheet of
drawings to be hereinafter referred to.
The illustration on accompanying drawing represents a vertical elevation of an
ordinary hot water kitchen boiler and its water feed arrangements fitted with my
improved arrangements for preventing explosions during time of frost.
A represents the cold water cistern usually placed at or near the roof of the
house. B the connecting pipe between cistern and heater. C the heater. D.the
hot water tank and E and F the circulating pipes between hot water tank and
heater. G represents the expansion or escape pipe and H a pipe leading from said
escape pipe to supply baths or other household requirements.
My improvements are represented by letter "I" the aforesaid 3 way cock or
valve for shutting off the connection on the main supply pipe connecting the
cistern A and heater C. The letter J represents the overflow pipe leading from
cock I and J represents the top part of said overflow pipe and which serves as the
air pipe, the top end of which is provided with a cap or plug. The letter "L"
represents the test or try cock for ascertaining if the tank boiler and circulating
pipes be clear or for ascertaining the level of water in hot water tank "D" or for
serving as an auxiliary hot water supply pipe. The letter M represents the
auxiliary water supply inlet for the hot water tank.
The modus operandi of my improved arrangements whereby kitchen ranges can
be worked with perfect safety during periods of frost is essentially as follows.
The invention essentially consists of the addition to the ordinary arrangement of a
filler cock M at the top of the tank and an overflow cock I and test cock "L" to
the pipes which conveys the water from the cistern A to the boiler "C."
The apparatus is not selfacting but all that is required is, when frost comes, to open
and lock the filler cock M and overflow cock I. This leaves the whole apparatus
open, and the fire can be kept burning and hot water drawn from the tank as
required from the test cock "L," which is placed in such a position that the tank
cannot be more than half emptied. Cold water can be added by the filler cock M.
The overflow cock "I" can also be used as a syphon to empty the boiler and tank
should this be deemed necessary. The apparatus can also be fitted to any
water system. Apart from safety during times of frost it is useful in permitting
repairs on the discharge pipes to be made without withdrawing the fires.
hot
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 arrangement for shutting off the connection with the cold water cistern by
means of the three way valve I. the overflow and air pipe J and J' the test cock L

page_text: and the arrangement for temporilly filling the hot water tank by means of filler
cock M. substantially as hereinbefore described and illustrated on the accom-
panying drawing.
1
JAMES ANDREW.