AND BUILDING CONTRIVANCES.North Gallery, and with Classes 5 & 6.
315
Kingdom.]
Mersey, at Runcorn Gap, in one span of 1,263 feet. Thes pan of the arch of this model is 31 feet, being, about ^jth® the span proposed for the bridge. The principle wasu 6gested by considering the construction of the back-bone of an animal.
53 p H EINM , Charles E.—Inventor and Manufacturer.exum' 6 ^ submarine helmet, dress, and apparatus, fordock U f 111 ^ and repairing of ships’ bottoms, at sea or ina nd f t01 ' t * 1 ? rec <>very of property from sunken vessels,an d i^,® a ^i n S and repairing the foundations of viaducts
in ^ atent helmet air valve, for protecting the diver’s life6 an L acc ident happening to the air-hose. Itto a mS a su ® c ient quantity of air (say from ten minutes^quarter of an hour) to give the diver time to ascend,close h* ^buet slide, which the diver can instantaneously, should the glass be accidentally broken,ful D P rov cd connecting joints, calculated to resist power-jPressure, having a double safety-cap attached,to ^vented signal dial, by which the diver is enableda ke known his wants.
ITh
Eur 06 ear ^ es t mention of the use of the diving-bell infrom^ C WaS * n 1509: 168 ^ treasure was brought up
Eca a ^ un * cen s hip by William Phipps, a native of Ame-inve • Ut drs ' ; P rac tically useful diving-bell was theh e j^ 10n °f Dr. Halley, in 1720, who also contrived aat (jj 61 to enable the diver to go out of the bell, and walkto(its e bottom for a considerable time. These diving hel-a »d dresses have been improved from time to time,one ^ now extensively used by engineers in hydraulic
^rations.—s. c.]
54 -
evey, Geo., 16 Great Marlborough Street —Inventor.Hui Sa el > illustrating a proposed method for obviating theCe arising from the smoke of ordinary house fires,
by combining with the present sewerage a general systemof underground smoke drainage.
The following cut shows the mode of application to exist-ing buildings, and the general arrangement proposed:—
1. By connecting the ordinary flues with the sewer inthe streets.
2. By adapting these flues, now formed for transmittingthe smoke upwards, to the downward current proposed.
3. By providing, in these arrangements, for the presentaction being resumed at any time, for the purpose ofinspection or repair.
Fig. 1. A, Sewer.
B, Horizontal connecting flue from chimney in kitchen.
C, Valve , or register, for regulating opening.
D, Junction (by present flues from basement) of fluesfrom chimneys above; the smoke from which, ascendingin the usual way on reaching the openings at E, would bedrawn down by the current produced by exhaustion inthe sewer; the action being assisted by the heat from thekitchen fire.
E E, Openings forming passage for smoke across chim-ney-breast, cut through partitions or withs, with a valveset in each. By means of a balance weight, these wouldbe made to act simultaneously, and remain open or shutas required; forming, when open, a downward passagefor the smoke under the action of the new system, and,when shut, a passage upwards by the existing' flues.Thus, allowing the ordinary action upwards to be instan-taneously resumed in case of accident, or during any ope-ration, such as cleansing or repair.
F F, Stone to front of chimney-breast in roof, to takedown for access to valves.
Fig. 2. Openings at E E to larger scale, with valvesshut for passage of smoke upwards as at present.
Fig. 3. Openings at EE; open for passage of smokedownwards as proposed.
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Devey's Smoke
Banks, Langley, 23 Parliament Street , Hull —rj, . Designer and Manufacturer.
on e g. ln , S e ometrical staircase. It requires the space of*sden l ? 1 r,Ill y, admitting persons to ascend and descenda *'d nn D 5 ent ^ eac b other. Adapted for confined places,are r„ rt . lcu l a rly for public buildings where show-rooms
cquired.
Boy
’ •!', J., .>4 T/ireadncedle Street —Inventor
L-IL1
and Manufacturer. •
Skeleton frame of a building, iron and wood,a new method of joining iron joists a " d ™ ■ grooved
framing a roof by wedging u°n ‘ b
Removal Plan.
rafters. Also a light framework of iron, rolled at oneeinto the shape required to form a ceiling, and receive theusual plaster. Its object is to limit the ravages of fire.
Door to be used in a fire-proof house.
Section of a ship’s side, showing a method of casingiron ships with wood, without using bolts or rivets. Bythe introduction of a non-conducting substance (that usedin the model being silex and gutta percha), between thewood and the iron, a vessel may be coppered without riskof decomposition from contact of the copper with theiron.
New method of framing the sides of iron ships, theobject of which is to obtain greater strength at less cost.