Improved Means of Facilitating the Passage of Fluids through Tubular Structures.
Year: 1890

page_text: Date of Application, 4th Nov., 1890
Complete Specification Left, 4th Aug., 1891-Accepted, 3rd Oct., 1891
PROVISIONAL SPECIFICATION.
Improved Means of Facilitating the Passage of Fluids through
Tubular Structures.
I, JOHN GEORGE HERBERT BATCHELOR of Penarth Glamorganshire
Mechanical Engineer do hereby declare the nature of this invention to be as
follows:-
The object of this invention is to enable the flow of gases or liquids through
tubular structures such as steam boilers, condensers, heating & cooling apparatus &c.
to be effected with the least expenditure of force or with the smallest difference of
pressure of the fluid between the ends of the tubes to which the invention is
applied.
I attain this object by fixing to the plate in which the tubes are secured plates
or castings of metal or blocks or tiles of fire clay or other fire resisting substance
or compound, perforated with holes to correspond with the openings or ends of the
tubes such perforations being of a bell-mouthed or trumpet shaped character, so
that the entrance to each tube is bell-mouthed or trumpet shaped and there is no
flat surface left between the tubes to obstruct the flow of the gases or liquids but
instead the sharp edges formed by the conjunction of the sides of contiguous trumpet
shaped holes, divide the gases or liquids & conduct them with the least obstruction
to the tubes of which they form the expanded openings.
These perforated blocks or tiles, which may be made to accomodate four or more
tubes according to size, and may be with advantage placed at both the ingoing &
outgoing ends of the tubes or tubular structure to which the invention is applied,
are fixed to the tube plate by means of studs & muts, or when the tubes are
horizontal two or more feathers or wings may be formed on the perforated blocks,
tiles, or castings which shall enter the tubes & thus sustain the blocks or castings
in the proper position.
Dated this Third day of November 1890.
COMPLETE SPECIFICATION.
Improved Means of Facilitating the Passage of Fluids through
Tubular Structures.
I, JOHN GEORGE HERBERT BATCHELOR, of Penarth Glamorganshire
Mechanical 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 object of this invention is to enable the flow of gases or liquids through
tubular structures, such as steam boilers condensers, heating & cooling apparatus &c.
to be effected with the least expenditure of force, or with the smallest difference of
pressure of the fluid between the ends of the tubes to which the invention is
applied.
I attain this object by fixing to the plate in which the tubes are secured, plates
or castings of metal or blocks or tiles of fire clay or other fire resisting substance or
compound, perforated with holes to correspond with the openings or ends of the
tubes, such perforations being of a bell mouthed or trumpet shaped character, so
that the entrance to ach tube is bellmouthed or trumpet shaped & there is no flat
surface left between the tubes to obstruct the flow of the gases or liquids, but
instead the sharp edges formed by the conjunction of the sides of contiguous trumpet

page_text: tiles, or castings, which shall enter the tubes and thus sustam the blocks or castings
in the proper position.
DESCRIPTION OF DRAWINGS.
Fig. 1. represents a frent view or elevation of one form of the perforated tile or
plate, suitable for a boiler having horizontal tubes: a, a, are two lugs or wings
which enter two of the tubes & keep the tile in place. This form is preferably
made of metal.
Fig. 2. is a section of Fig. 1. through the line A B and shows the form of the
trumpet shaped holes.
Fig. 3. is a front elevation of another form of tile or block which may be made of
fire-clay or other fire resisting compound. It is preferably fixed by means of a
stud b, which is screwed into the tube plate of the boiler.
Fig. 4 is a section of Fig. 3. through the line C. D. c, is a recess in which a nut
may be screwed on the outer end of the stud b, or in the case of a fire clay tile it may
be filled with a cement which hardens with heat.
Fig. 5 is a side view of Fig. 3. and shows the semi-perforations of the block
or tile.
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 :
In tubular structures, the application and use of perforated plates or tiles, or
metal, fireclay or other fire resisting substance or compound, the perforations being
of a bell mouthed or trumpet shaped character, so placed as to facilitate the passage
of fluids.
Dated this First day of August 1891.
J. G. HERBERT BATCHELOR.