Improvements in the Construction of Cylinders, Tanks, Cisterns, Baths, Ventilators, and the like
Year: 1893

page_text: Date of Application, 8th Sept., 1893
Complete Specification Left, 8th June, 1894-Accepted, 8th Oct., 1894
PROVISIONAL SPECIFICATION.
Improvements in the Construction of Cylinders, Tanks, Cisterns,
Baths, Ventilators, and the like.
DAVID PRENTICE MENZIES, F.S.A. Scot. Ventilating Engineer and Tank
Manufacturer 30 Bishop Street Anderston Glasgow do hereby declare the nature
of this invention to be as follows:-
"
I specially claim the use of hard rolled, compressed, condensed or close grained
copper sheets or plates done by hard rolling, hydrollic pressure or other means,
for the purpose of making copper cylinders, tanks and the like, by which means
combined with their construction these cylinders and the like are made to resist a
much greater pressure than heretofore. I construct these cylinders and the like by
double lapping their seams and "knocking up" their tops which is done by laying
back an edging of the body and a double edging of the top which is "hollowed up
or domed the edging of which is pinned down on to the body and then "knocked up
or over fixing the top and body together, the bottom of body is laid back at a
suitable angle and edged to fitt the raised bottom which is set within the edging
which is then laid down and being soldered outside fixes the body and bottom
together, thus in the same way the body of a bath or ventilator may be put
together, and holes for connections may be stretched out of the solid or laid back
so as to form a ruff to the outside or inside which being screwed saves riviting on
a flange and the manholes in these tanks and the like may be made in a similar
way. Any cylinder, tank, bath, ventilator or the like may be made up by this
principle or vice versa not only of this speciall hard rolled copper but of steel, iron
or other metals.
Deted this Seventh day of September 1893.
DAVID PRENTICE MENZIES.
COMPLETE SPECIFICATION.
Improvements in the Construction of Cylinders, Tanks, Cisterns,
Baths, Ventilators, and the like.
DAVID PRENTICE MENZIES, F.S.A. Scot. Ventilation Engineer and Tank
Manufacturer 30 Bishop Street Anderston Glasgow West 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 :-
"
I specially claim the use of cold rolled, hard rolled, compressed, condensed, or
close grained copper sheets or plates obtained by cold rolling, hard rolling
hydrallic pressure or other means for the purpose of making copper cylinders,
tanks and the like, by which means combined with their construction these
cylinders tanks and the like are made to resist a much greater pressure than hereto
fore. I construct the cylinders baths and the like by double lapping their seams
and "knocking up their tops, which is done by laying back an edging of the
body and a double edging of the top which is "hollowed-up" or domed the edging
of which is turned-down on the body and then "knocked-up" or over; fixing the
top and body together. The bottom of body is also laid back at a suitable angle
and edged to fit the flat or raised bottom which is set within its edging which
then laid down and being soldered outside or inside fixes the body and bottom
together. In the same way the body of a bath or ventilator may be put together

page_text: and holes for connections, screws or manholes &c. may be stretched out of the solid
or laid back so as to form a ruff to the outside or inside which being screwed saves
riviting on a flange, and the manhole in these tanks and the like may be made up
in a similar way. Any cylinder, tank, bath, ventilator or the like may be made up
by this principle or vice versa not only of this speciall cold rolled copper but of
steel, iron or other metals in addition to the compressed copper hereby claimed.
Fig. 1 represents the principles of construction combined with the use of com-
pressed copper &c. in the manufacture of tanks. The body B. is thrown back at
an angle shown by the lines A. The top E is then inserted and the edge A. is
then turned down. The hole in the top of it is bossed up and then ruffed back so
as to form the screw G. The body holes are ruffed-inwards to form the flange-
screw F. The manhole of body is ruffed outwards of body-plate to form flange F.
and the door D. receives a double bend to lay over the flange of F. leaving
sufficient room for a rubber ring between. The bottom E may be hollowed-up
(or kept flat) and edged round then sliped on to the body which is edged outward
to receive it and then pinned down or closed.
"
Fig. 2. The body B of compressed copper or steel is set back a single edge at
top E which receives a double edging and is pinned down, after which the whole is
knocked-up" or double seemed. The body at the bottom is reversed back to a
suitable angle and re-edged to receive bottom which is raised (or flat) on being
inserted the edging is laid down fixing the body and bottom together. The screw
holes may be ruffed in or out as described in Fig. 1.
Fig. 3. The bottom B is laid back a single edging top and bottom. The top
and bottom receive a double edging and are sliped onto body pinned down and
fixed. The ruffs G are showen turned both out and in to meet requirements.
Fig. 4. is an open cistren of compressed copper, steel or iron, made on same
principles, body B. being reversed back and re-edged to receive ends which are then
laid down. The top flangh H. being simply the plate bent over, saving angle irons.
The bottom hole F. is ruffed out as in Figs. 1, 2, 3, to receive supply pipes for.
the water turbine.
Fig. 5. is another representation of above but a closed in square tank, the
body B being laid back a double seen the end E (flat or raised) then inserted aud
the edging A laid down fixing the tank.
Fig. 6. The body B. is made on the same principles as Figs. 1 to 5, having a
single edge thrown back. The sides having a double edge which is pinned on to
the body. The supply pipe to the watter wheel or turbine to be screwed into
ruff F. as Figs. 4-5.
Figs. 7-8. A ventilator having its body B. laid back top and bottom and
cones A. A. with double edging pinned on to body which has a diaphragm on top
with a hollow cone over it. Between each is an air space through which is blowen out
air by the screw fan in pipe driven by turbine or other means. A jet of compressed
air may be inserted into the pipe to create an updraught from the tank Fig. 19.
Fig. 9 is a section of a baths made of compressed or cold rolled copper, steel &c.
on these principles the "knocked-up" or "groved seems S. indicated by dotted
lines on Figs. 9 and 10, Nos. 12, 13, 14, 15, and also indicate the seems on half
"blanks" Figs. 12, 13, 14, 15.
Fig. 10. Plan of baths finished seems indicated by same Nos. as above 12 to 15.
being those of Figs. 12 to 15.
Figs. 12, 13, 14, 15 are the half shapes of flat could rolled or compressed copper
or steel sheets before forming into bath.
Fig. 16. Fresh air inlet seems as Figs. 1 to 15, body B. is laid back at bottom E
which is double seemed and pinned down on to body. It has a valve V. with a
pointer to indicate open shut its spindle sockets being ruffed back at F. It has a
venitian valve at bottom V. to be opened or shut by leaver with catch to keep open
valves may be loaded at edge to keep shut.
Fig. 17 shows front view of above. The bottom valve V. in this is made to
draw up with wire gaurd. Bottom E fixed as in Figs. 1 to 5.

page_text: Fig. 17. Side section at bottom showing drop valve V. with leaver to open
or shut.
Fig. 18. Square compressed or could rolled copper tank made up of corrogated
plates throughout and otherwise constructed as above.
Fig. 20. Square tank with all or parts of its sides B. convexed to resist pressure
ends E and ruffs F as in Figs. 1 to 7.
Fig. 21. Cylinder tank for compressed air for ventilation to force up-current
constructed as in 1 to 20, but with air pump P. to compress air.
Blow off tap J.
to supply air to ventilator Fig. 7 by pipe I.
Fig. 22. Tank as Fig. 20 but body concave which may be corrugated as
Fig. 18 either in half round, angle or coane shaped corrugations construction other-
wise as others.
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
1st. The adoption and application of compressed copper otherwise called cold
rolled copper for the manufacture of cylinders, tanks, baths, ventilators, turebines
cistrens &c. and the like as set forth in the foregoing and shown by drawings &c.
whereby they resist much greater pressure than with ordinary copper &c.
2nd. The mode of constructing the foregoing tanks, cylinders, baths, ventilators,
&c. as set forth in the foregoing and by drawings whereby they can be made
without rivets as also with rivets as requirements may demand.
3rd. The specall mode of applying the compressed copper to baths and their
construction being such that they may be made out of one peice of copper or steel
as showen in the drawings.
Dated this Seventh day of June 1894.
D. P. MENZIES, F.S.A., Scot.