Kingdom. ]
GUNS, WEAPONS, &c.
West End Gallery and South-West Gallery.
349
Jib tongned and joined with glue.
“look of elm joined with glue and exploded withPowder: the joint remaining entire.
thece of glued deck; the interior of the vessel de-str oyed by fire.
_ Oak cannon ball, joined and fired with 8 oz. powder atWoolwich, in 1842, at an angle of 45 degrees, at there <lUest. a-P +1^ a:,, t at +/-v +w pfFer.t
remr”/ cu ’ 111 at —o_ -- --o
Oon e -°^ tl:le l ate Sir I. M. Brunei , to try the effect ofits f. 1 ;? 81011 ou ti le joint when rebounding on the earth injv~> tke joint remaining entire,at a* “look ; square foot of surface glued ; wood broke2 j oon° nS ’ t ^ lus 8 1Y ' m 8’ at 3 tons per foot, upwards ofa firstr t DS at ^l!° na l stre ngth dispersed over the hull of
b u ^ 0( lel mast exploded with powder, rending the timberSec ,. n °l the joints ; the glue confining the splinters; withcnon of tl le
same.
atl( ^ °J e l mast, made of northern seasoned timber; durablestrong; with section of the same,of rcu l ar timber, converted from the straight by means
hi
Tw °® any deck, payed with marine glue.
Posed seains payed with glue, and two with pitch, ex-s Un o * same temperature ; showing the effect of thej n a topsides of vessels under the line.a J«iit & construction of made-masts, the marine gluebei n „ S small seasoned Dantzic, or northern timber,s aid t U , se< ^ instead of yellow pine. Upwards of 2001. isa Pwar i save< J i* 1 one mast, in its first construction, andth e hi if 25 > 00 °tons additional strength dispersed over’basts r au ? ®>384 tons over the internal surfaces of theactual a ^ rst ' ra te ship. This calculation is under the |foot in stren gth, being calculated at three tons per square^ stead of four—the timber’s breaking strain.Co lle c t OIni ?' ss ’ OI1 > recently appointed by the Admiralty, tothe n, e . v i ( i erj ce and report their opinion on the value ofM a je st ar , Iue glue, for the use of the invention in HerThat oV K ay y, collected evidence to this effect, viz.:—ltoy a j S? the 130 vessels which have been glued in thefou n( i ' av y> one caulking and paying with glue has beenValy^.bfiual to three times with pitch; besides otherfort g, 6 ev iJeuee as to its cleanliness, security, and com-crews.
yard examination, some months since, in Sheerness ship’ f, tae masts and bowsprits of five line-of-battleout mg b lacle since 1841-2, of yellow pine timber with-ooufie^’b® glue, 16 out of 20 were found rotten andbover • a ^though the masts of three of the ships hadblade Jy? 1 “ eomm ission ; while all the masts and yardstheir ret marine glue, in 1842-3, have been found, onttedge ll Ur “ fr . 0In foreign service, inseparable even by the^he'ra 8 J® st ified in official reports.
°ld meth h • rott i n S °f yellow pine masts made on thethat the 0(11S w . e11 known; and it was as a remedy for thisb'ghest i c °mmittee of master shipwrights attached the^i'Oulq b'poi’tance to the marine glue; stating—“thatyears of mond to retain its great adhesive force, afterblight be f f n a tropical climate, masts for the futureSavi na- etr m , of small seasoned timber, and a great[Decl e ° te< ^ throughout the Navy.”foi '®i the S fl° r ratl i er the joints between the planks which° a kunt • t , 00 !' SOr J e °ks of ships, are usually caulked withCa blkinL if joints being merely narrow spaces which thePkttkg ^ U P- The joints are made open, that the
Netted ° f wooc *> may have room to swell when
fr e °mpre • t ^ e cau lking ought to be so elastic as to yieldfre Planks^* 011 ’ an< ^ return ugaiu upon the shrinking of
requisites, being impervious to the weather, not liableto be destroyed by moisture, as ordinary animal glue is,nor melting so readily as pitch melts, and yet capable ofbeing used, and of acting adhesively, and being durable
and cleanly, must be of value.
“ Made-masts ” are masts not in one tree, log, or spar,as to its transverse section, but made up or built ofseveral pieces fitted together, and hooped, as a cask is. Itis difficult in practice to fit and bring together the partsof a made-mast so closely as not to require some packingin the joints, to aid the hoops in preventing movementamong them, and to keep out water from the body of themast. The glue referred to is intended to supply thepacking, to cause adhesion of the parts of a made-mast,and to exclude the water.—W. II.]
me nl ar .v .— wlA u. ueiu.rn again upon me sunuAuig vxof re sist' S ^ ry weat -k er ! and capable at the same timelittl e tar* 1 '^ water ’ Oakum, with the admixture of aJ^gree a fr. un fl to possess these requisites in a greatthe seain^ ’ a ^ e< ^ ^y a paying of pitch on the surface of^ ec ks. p. an swers very well for the caulking of lower°« Upp er 1 ’ s objectionable, however, for this purpose8 °ften s e °ks, because of the freedom with which it^bbstanee 11 W influence of the sun’s rays. Anypossessing the qualities above alluded to as
189 O’Connor, Hugh, Limerick —Inventor.
Model of a rotatory boat pump.
190 Anderson, Robert, Westoe, South Shields —
Inventor.
Small pattern life-boat, clinker-built, fitted with air-tight ceiling, feathered and grooved up to her gunwales,forming an air-tight inner skin. This boat has a well ortank in her centre bottom, holding 44 gallons of water,with which it is ballasted when in the water with thecrew on board; and when the well is full, the valvesshut down tight by their own weight. The boat is alsoprovided with air-tight compartments in her bottom sur-rounding the well, to the sides and ends rising at eachend with nearly the same sheer as the gunwale and inother parts. The boat is intended to answer eitherfor beach service or for a passenger ship or steamer; forthe latter purpose it is fitted with two small self-workinglug-sails, and a jib and a rudder to use when under sail.The well, in this service, can be filled with fresh water,and the air-cases with bread and provisions.
This boat has been severely tested in heavy brokenwater on the hard sand, and could neither be swampednor upset. _
191 Tbail, Archibald, 8 Upper East Smithfield —
Inventor and Patentee.
Patent storm sails: the novelty consists in the appli-cation of narrow corded bands of one inch in breadth,with cords wove therein, being sewn in reversed angulardirections, on the fore and after part of the sail, the endsof which are spliced into the bolt-rope. By this meansthe destructive effects of the wind are confined within thelimit of the diamond (being about 46 inches), and the sailwears much longer, by equalizing the strain over all its
parts. _
192 Addison & Gilbert, Emmett Street, Poplar —
Inventors.
Two models, one of a patent main-topsail, and theother of a patent jib, showing the graduated variation inthe width of the seams used in making sails; intended togive greater strength and durability to the sails, with lesscanvas.
193 Robinson & Russell —Builders.
Model of a Prussian war steamer.
194 Carpenter, E. J., Capt., Senior United Service
Club —Inventor and Patentee.
Duplex rudder and screw propeller.—The engravingrepresents a stern view of a vessel with two rudders andtwo screw propellers, fitted in new positions for improvedsteering and propelling. Prom the midship section ofthe vessel to the stem, no alteration is introduced intothe form of the hull; but abaft this point they commence.First, the keel, with the dead-wood, stern-post,^ andrudder, are removed, and the flooring above receives asuitable form for strength. Two additional keels lie in aline parallel with the former keel, but placed at a dis-tance of two or more feet, according to the size of the