The Sun.
London, England, 1852-10-18 00:00:00

G UTTA PERCHA PIPING.

To make pipe, the softened material is forced through
a die, the pipe as it forms being drawn away from the
die through water to harden it. The mode of joining
the pipes is very simple and beautiful, hot water and a
little skill being all that is needed. There seems good
reason to believe that piping of this material will be
very extensively used. The testimonials in favour of its
use for conveying water and other fluids are numerous
and strong, although necessarily the experience is com-
paratively short. We regard it as of the utmost im-
portance that the fact of its endurance should be estab-
lished, as, that being proved, we shall then be able to
get rid of the noxious lead-piping through which water
now flows to our dwellings, and the, still worse, lead-
lined cisterns. The ability to make pipes in very long
lengths, too, will be valuable in many cases, as, for in-
stance, when it is necessary to lay pipes under water. To
convey the Croton water to Blackwell's Island, New
York, a distance of 1,000 feet, the pipe was made of
gutta percha in cne length, and, by means of a line of
boats, was lowered into its place—with small anchors
attached at intervals to keep it steady—in seven minutes
and a half. As to the strength of gutta percha pipes,
we have the evidence of the engineer to the Birmingham
Waterworks that a 200 feet head of water and the " ram'
caused by shutting it off suddenly produced no effect;
proving their capability to withstand hydraulic pressure,
whether steadily or intermittently applied. The cost, as
we understood, is at present about the same as lead, but
then expense is saved by the absence of joints. It may
bo well to mention that where pipes or other articles
made of gutta percha. aro exposed to the direct rays of
the sun, they should bo painted white, as this effectually,
it is said, prevents the material from softening. The
youngest of our readers, of course, knows why. At the
Lambeth Gutta Percha Works, where the same pro-
cesses are seen in operation, they adopt for pipes, &c.,
what they call Double Compound, containing, apparently,
India-rubber mixed with the gutta percha, and this pro-
ducespoundaamreovreerflyewxieble article, and if proved to be equally
stro
will and lasting (of which there seams little doubt),
Hi come largely into use. Small tubes of this
flexi-
bilitycom-
union joints the
inch
is required, and
elel suited for all
eennonreexii
rbe.aftokr
with publicans'
the druaswei,n
drawing
omaattha
machine:
:bya
pipe of half an senfeoubnedingto
mbaedveeriyn uasbenfunit iu
many places, th
minute.—Builder.

mimic. —A
rao-177uses ;
[ADVBE,TIen
valuable, newly-invented, very
RoTALExu
pocket glass, the size of a walenrilt,tter
answer yallhipoehwerful waistcoat
soenenthaendßkaneeorenourlisem, Rae:
the pt;
purposescenery can b e
country 1 every
and ships are clearly seen at 12 t
valuable for shooting, deer stalkin 4 miles; they are in-
ertii!agt,ece,
and will
eig angel' Pehtiag' to Sports-
men, Gentlemen, Gamekeepers
at 39, Albemarle-street, iccadilly, Zseurimsts--Te he had
York-hotel. Telescopes—A new and moat Important
the
vention in Telescopes, possessing such extraordinary powers,
he
that some, 3i inches, with an extra ey
show distinctly, Jupiter's Moons, Saturn's
threethe
Double Stars. With the same Telescope, weighing onl
ounces, can be seen a person's countenance 31 miles elistant
and an object from 16 to 20 miles. They supersede ever;
other kind for the waistcoat pocket, and are of larger and all
sizes, with increasing powers accordingly. Opera and Race-
course glasses, with wonderful powers; an object can be
clearly seen from 14 to 16 miles distant. Messrs. S. and B.
Solomons, Opticians, have invented invaluable preserving
Spectacle Lenses, immediately they are placed before impel,.
fect vision, every object appears clear and distinct, the most
aged defective sight becomes bright and brilliant, is brought to
its youthful, natural, and original state. The Invisible Or-
ganic Vibrator, and all kinds of Acoustic instruments for relief
of extreme deafness.-39, Albermarle-street, Piccadilly, ob-
serve opposite the York Hotel.
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