Improvements in Boilers for Hot Water and Low Pressure Steam Heating Apparatus.
Year: 1896

page_text: Date of Application, 18th Aug., 1896
Complete Specification Left, 10th May, 1897-Accepted, 10th July, 1897
Improvements in Boilers for Hot Water and Low Pressure Steam
Heating Apparatus.
We SAM NAYLOR Manager and LEWIS MARSHALL Traveller both of 33 West View
Halifax in the county of York, do hereby declare the nature of this Invention to be
as follows:-
The object of our invention is to secure greater efficiency and economy in the
aforesaid boilers, by improving the construction of the base, and fire-bars, so as to
be more easily and readily stoked and cleaned out; also introducing into the boiler
water-tubes either in groups or arranged all around the said firebox.
In our improved base and rocking bars, the bars are moveable and made in
sections, and are connected together and operated by rod or rods and lever or
levers, so as to break up the fire and cause the ashes to fall into the ashpit. The
section of the fire-bars are rounded towards the centre so as to be stronger at the
centro. The wator tubes are connected to the crowu of the fire-box and havo an
inner circulating tube, the lower ends of the tubes extend preferably below the
fire-base into the ash box, so that any deposit of sediment from the said tubes falls
below the fire and cannot injure the tubes or they may terminate above the fire base.
The tubes are arranged so as to be readily replaced when worn out, the afore-said
tubes may be arranged either in a group or groups or all around the fire-box,
as desired.
The above improvements are applicable to any shape of boiler for the aforesaid
purposes.
COMPLETE SPECIFICATION.
5 Improvements in Boilers for Hot Water and Low Pressure Steam
Heating Apparatus.
We SAM NAYLOR Manager of 38 West Viow and LEWIS MARSHALL Manager
of 34 Elmfield Terrace, late of 38 West View, both in Halifax in the county of
York, do hereby declare the nature of this Invention, and in what manner the
O same is to be performed, to be particularly described and ascertained in and by the
following statement :-
The object of our invention is to secure greater efficiency and economy in the
aforesaid boilers by improving the construction of the base and fire-bars so as to

page_text: be more easily and readily stoked and cleaned out, also by our construction of boiles,
the outside of said boilers is utilized ns a heating surface, thereby dispensing with
brick setting. For further improving the heating apparatus we employ and arrange
in groups around the fire-box, or around the outside of boiler, or both, a series
of vertical water tubes.
DESCRIPTION OF DRAWINGS.
Fig. 1 is a side elevation in section of our improved construction of hot water
boiler, without vertical water tubes, such boiler in low pressure steam heating
apparatus is extendod as shown in dotted lines.
Fig. 2 is a sectional plan of Fig. 1.
Fig. 3 is a side elevation in section of our improved construction of hot water
boiler having vertical water tubes with extension for low pressure steam boating
shown in dotted lines.
Fig. 4 is a sectional plan of Fig. 3.
In constructing our improved boilers with an improved base A preferably conical,
and having moveable rocking fire-bars B, such bars are made in sections, and are
connected together and operated by rod or rods C, and lover or levers D, so as to
broak up the fire and cause the ashes to fall into the ash pit, the section of the fire
bars is rounded towards the centre so as to be stronger consequently of greater
durability.
We preferably provide the boiler E with an outer shell or casing F of suitable
material, to the top of which is attached a plate or cover G, so forming a flue or
smoke chamber H around the outside of the boiler, in which the smoke or other
products of combustion circulates and greatly assists in heating the said boiler.
We also employ vertical water tubes J, see Figs. 3 and 4, arranged in groups or
in juxtaposition to each other around the inside or outside, preferably outaide of the
boiler, and attached to same by their upper ends. The boiler in this case being
preferably constructed with an overhanging or extended top E, which in
combination with the outer shell or casing before described forms the flue or smoke
chamber H within which and attached to the boilor are the vertical water tubes
before mentioned.
These tubes J communicate with the boiler E, and have an inner web or
diaphragm K, extending down the tube in such a manner, that abould there be any
deposit of sediment from the said tube it falls and accumulates in the bottom of
the tube and below the bottom of the wob K, therefore it does not injure the tube
or interfere with the water circulation. By this construction of tube the water enters
and circulates through one half of the tube and flows up and out of the other half as
indicated by arrows, this half of the tabe is extended at L so that the water enters
and leaves the tube at different levels thereby ensuring a free and perfect
circulation.
The lower ends of the tabes may have a square formed upon them for faciliting
their putting in or taking out, those tubes are arranged so as to be readily replaced
when worn out, and may be connected or fixed to the boiler in any suitable
manner.
The boiler is provided with suitable openings for feeder N, and flue P, such
feeder and flue being arranged or formed in positions to suit requirements.
The above improvements are applicable to any shape of boiler for the aforesaid
purposes, although they are only shown applied to a circular boiler, and may be
applied separately or collectively.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, we declare that what we
claim is :-
1. In hot water or steam heating apparatus constructing boilers with an outer
caso or shell F, having plate or cover G to form flue or smoke chamber H, with or
without tubes I for the nunnosas aubstantiall. -- 11.

page_text: 2. In hot water or steam heating apparatus constructing the boiler with an outer
case or shell F, and over-hanging or extended top El, to form the flue or smoke
jacket H, in combination with vertical water tubes J, or without, for the purposes
substantially as sot forth.
8. In hot water or low pressure steam heating apparatus, the use and employment
of a series of vertical water tubes J, having internal web or diaphragm K, and
extended part L, arranged in the manner and for the purposes substantially as
described.
Dated this Eighth day of May 1897.
JOHN E. WALSH,
Waterhouse Chambers, Crossley Street, Halifax,
Patent Agent for the Applicants.