Improved Means for Preventing the Deposit of Solid Matter on the Circulating Tubes of Apparatus for Heating and Cooling Water and other Liquids, also Applicable to the Water Tubes of Steam Boilers.
Year: 1886

page_text: Date of Application, 14th. May, 1886:
Complete Left, 12th Feb., 1887.
Complete Accepted, 15th Mar., 1887.
Improved Means for Preventing the Deposit of Solid Matter on the
Circulating Tubes of Apparatus for Heating and Cooling Water
and other Liquids, also Applicable to the Water Tubes of Steam
Boilers.
We HENRY JOHN WORSSAM and HENRY HUNT, both of City Road, in the County
of Middlesex, Engineers do hereby declare the nature of this invention to be as
follows:-
Our invention relates more particularly to the construction of apparatus for heating
water and other liquids for which Letters Patent were granted to Henry John
Worssam on the 5th August 1884 No. 10947 in which a closed metal receptacle or
drum, placed within the tank or receptacle containing the water or other liquid to be
heated, had a series of vertical tubes passing through it, through which the liquid
circulated freely, while the interior of the drum was supplied with steam or heating
fluid.
Our present invention has for its object to prevent the deposit of scale or other solid
matter on the inner surfaces of the tubes through which the liquid circulates, which
deposit would interfere with the effectual transmission of the heat to the circulating
liquid. For this purpose we introduce into the interior of each tube a tubular lining of
very thin metal, split longitudinally at one point and having a spring action, so that
when introduced into the tube, the tubular lining will apply itself closely against the
surface of the tube, the diameter being so proportioned that the edges of the lining will
exactly butt against each other when sprung in. By this means the deposit from the
water or other liquid will be made to take place upon the inner surface of the lining
tube, which can be readily removed when the deposit has acquired a certain thickness,
and be cleansed and again introduced. For facililating the removal and introduction
of the tubular linings their upper ends are made to project slightly above the heating
drun, and they may be there formed with a suitable head.
Although we employ these tubular linings mainly for the heating apparatus above
alluded to, yet it will be evident that they may also be applied to the same description
of apparatus when used for cooling water or other liquids (the interior of the drum
being fed with a refrigerating fluid) in order to prevent the deposit of scale or other
matter that sometimes occurs on cooling water or other liquids.
Such tubular linings may also be used for the water tubes of steam boilers.

page_text: Improved Means for Preventing the Deposit of Solid Matter on the
Circulating Tubes of Apparatus for Heating and Cooling Water
and other Liquids, also Applicable to the Water Tubes of Steam
Boilers.
We, HENRY JOHN WORSSAM and HENRY HUNT, both of City Road in the County
of Middlesex, Engineers, 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:-
Our invention relates more particularly to the construction of apparatus for heating
water and other liquids for which Letters Patent were granted to Henry John
Worssam on the 5th August 1884 No. 10,947 in which a closed metal receptacle or
drum placed within the tank or receptacle containing the water or other liquid to be
heated, had a series of vertical tubes passing through it, through which the liquid
circulated freely, while the interior of the drumm was supplied with steam or heating
Huid.
of
Our present invention has for its object to prevent the deposit of scale or other solid
matter on the inner surfaces of the tubes through which the liquid circulates, which
deposit would interfere with the effectual transmission of the heat to the circulating
liquid. For this purpose we introduce into the interior of each tube a tubular lining
very thin metal, split longitudinally at one point and having a spring action, so that
when introduced into the tube, the tubular lining will apply itself closely against the
surface of the tube, the diameter being so proportioned that the edges of the lining will
exactly butt against each other when sprung in. By this means the deposit from the
water or other liquid will be made to take place upon the inner surface of the lining
tube, which can be readily removed when the deposit has acquired a certain thickness,
and be cleansed and again introduced. For facilitating the removal and introduction
of the tubular linings their upper ends are made to project slightly above the heating
drum, and they may be there formed with a suitable head. Although we employ these
tubular linings mainly for the heating apparatus above alluded to, yet it will be
evident that they may also be applied to the same description of apparatus when used
for cooling water or other liquids (the interior of the drum being fed with a refrigera-
ting fluid) in order to prevent the deposit of scale or other matter that sometimes
occurs on cooling waters or other liquids.
Such tubular linings may also be used for the water tubes of steam boilers.
Fig. 1 of the accompanying drawing shews a vertical section of the liquid heating
or cooling apparatus bereinbefore referred to, with our invention applied thereto. A is
a closed drum in which are fixed tubes B B open at both ends through which the water
or other liquid circulates into these tubes are inserted loose split tubes C of thin

page_text: metal, shewn to an enlarged scale in elevation and plan at Figs. 2 and 3, these tubes
being so formed that a small gap exists at the slit when the tubes are free, but when
sprung together so that the edges of the gap meet, they will just enter and fit close
against the tubes B, and thus protect these from deposit from the liquid. The upper
ends are made to project above the tubes A and are provided with a flange or head C³,
whereby they can be withdrawn from time to time for the removal of deposit.
Having now particularly described and ascertained the nature of our said invention
and in what manner the same is to be performed, we declare that what we claim is :-
The use, in combination with tubes through which water or other liquid is made to
circulate in order to be heated or cooled, of thin longitudinally split metal lining tubes,
so formed that when sprung into the said heating or cooling tubes, they fit the same
closely with their slits closed up, so as to protect the heating or cooling tubes from
deposit, substantially as herein described.
ABEL & IMRAY,
Agents for the Applicants.