3100. Kostovits and Schäfer, Buda-Pesth. "A universal maritime speed regulator." 3255. S. Verderber, Buda-Pesth. "Grooved pipes for locomotive, marine and tubular boilers, and for fire-heaters and surfacecondensers." 47228. H. Satre. BELGIAN. "A boat for transporting other boats." 47284. J. L. Lay. "A torpedo-boat." 126203. Mathe. "A propeller applicable to vessels." 126329. Maxwell-Lyte. pellers." "An improvement in screw pro 126462. Heathorn. "Improvements in apparatus for increasing motive-power when liquids or fluids are employed for propelling and steering." 126358. Boulle, Paris. "A bathing-boat." 126422. Haskins. "An improved lifeboat and signal-buoy." 126434. Cozza, Marseilles. "An anchor." 126486. Blancho, à la Petite-Ile. 66 Applying sea-ooze for the manufacture of collector-tiles for oyster beds." GERMAN. "Modifications in Oldham's 4889. W. D. Rondi, Duisberg. paddle-wheel." 4890. D. G. Haskins, Boston. "A lifeboat." 5194. F. L. W. de Romilly, Paris. Propelling ships by suction of the water at the prow and ejecting it at the stern." SPECIFICATIONS PUBLISHED DURING THE MONTH. 3052. Charles Busbridge, Lawton, Cheshire. "New or improved balance mechanism for maintaining equilibrium during the rolling and pitching of a vessel at sea, applicable to furniture, cabins and other like purposes." The article to be maintained in equilibrium is supported on a ball and socket joint, and has a heavy weight suspended from it. The supporting structure attached to the floor or deck, follows the motion of the vessel, moving about the joint, whilst the heavy weight maintains its vertical position and the equilibrium of the article to which it is attached. Suitable locking apparatus may be added when required. 3374. John Isaac Thornycroft, Church Wharf, Chiswick. "Improvements in steering apparatus for vessels." A rudder or paddle in the form of a blade or fish's fin is made capable by means of a movable joint of being caused to lie close against the vessel or to protrude into the water, in which position a sculling motion, which may be reversed, is imparted to it, and throughout such movement the blade exerts a propelling effect, its focus being during the whole time at some efficient working angle to the direction of movement. The motion thus imparted to the blade renders it capable of turning the vessel when not in rapid motion. To turn her in rapid motion the blade is simply turned to a suitable angle as an ordinary rudder. The paddle or blade has motion imparted to it for active steering by a connecting rod moving it fore and aft, and a second connecting rod constantly turning it to the angle suited to the point of its travel, motion being given to the connecting rods by a crank-shaft, which may be turned by any suitable engine. 3425. Farnham Maxwell Lyte, Scientific Club, Saville Row, Middlesex. "An improvement in screw propellers." This has for its object the rendering more durable of iron and steel screw propellers, and making them less likely to foul than as at present constructed. On account of the blades of iron and steel propellers rusting and consequently becoming weakened and often breaking, they have been constructed of a much greater thickness than necessary for strength, in order that their inevitable dissolution may be retarded, and in consequence gun metal has been largely used as a substitute though a much inferior metal in point of strength. With the view to combine the advantages of lightness and strength, and to prevent fouling and oxida tion, the inventor constructs screw propellers of iron or steel and protects them by producing on their surfaces by means of an ammoniacal cyanide copper bath and subsequently an ordinary sulphate of copper bath, a deposit of copper which enables the screw to resist oxidation and fouling. 3428. John Sacheverell Gisborne, Craigs Court, Charing Cross, Middlesex. "Improvements in ship telegraphs." This relates to telegraphs for the purpose of conveying orders between officers and men and of repeating back those orders to show that they have been received. A transmitter, having a dial with divisions marked respectively with the different orders that have to be transmitted and an index movable by hand over the dial, is placed on the bridge, the receiving instrument placed in the engine-room has a dial and index corresponding with those of the transmitter, each dial having another hand for repeating the signals sent. On the axis of the index under the dial in the transmitter is fixed an arm carrying a roller which is pressed by springs against the interior surface of an insulated ring, into which ebonite (a non-conducting material) is let in at places corresponding with the spaces between the orders marked on the dial above. Upon turning the index to transmit an order, the roller, passing over the ebonite and conducting portion of the ring alternately, causes an interrupted electrical circuit, which by means of an electro-magnet, with a pawl upon its armature working a ratchet wheel at the receiver records the order upon that dial, a bell being set ringing at the same time by another electro-magnet continuing to do so till the order has been signalled back, a secondary dial, but with the mechanism reversed, being fitted to each instrument for this purpose. A modification of this signalling apparatus is also shown. 130 131 132 ADRIATIC-Spalato and Comisa AFRICA-West Coast-Senegal-Carabane South Coast-Off Durnford Tugela and Umhloti Rivers Coast-Cambay Gulf - Bay of Bengal-Poree EASTERN ARCHIPELAGO - Philippines Torres Strait-Shoals Lights restored. New light. Dangerous shoal. New light. Lucius and Aurora shoals not found in positions given. AUSTRALIA-South Coast-St. Vincent | Prohibited anchorage. Gulf Victoria - Port Phillip Gellibrand Point Queensland-Port Curtis Gatcombe Head Point Harbour New lights. Provisional fog-signal. Head NAUTICAL NOTICES. 113.-ENGLAND. South Coast. Spithead. Alteration in Character of No-Man's Land and Horse Fort Lights.-With reference to previous Notice, No-Man's Land Fort light has been changed from fixed red to fixed white, also showing a red sector of about 14 degrees in extent, covering the Ryde sand head and the Sturbridge shoal. And Horse Fort light has been changed from fixed white to fixed red. 114.—IRELAND.—East Coast.-North Arklow Light.-In accordance with previous Notice, the character of the light hitherto shown from the North Bank Arklow light-vessel has been changed to one white revolving light, showing two flashes in quick succession, followed by an interval of 45 seconds of darkness, the whole revolution occupying one minute. The light-vessel has only one mast, with a jigger-mast, the main-mast having one ball at the masthead. 115.-NORTH SEA.-Schelde River.-Prohibited Anchorage near Telegraph Cables. To afford protection to two Telegraph cables (the positions of which are marked by notice-boards) laid between Welsoorde and Waarde, West Schelde river, mariners are cautioned not to anchor in the vicinity. 116. NORTH SEA.-Netherlands.-Ship Canal.-Leading Lights at Noordzee (Ymuiden) Harbour.-Two lights are now shown from lighthouses recently erected on the south side of the canal entrance, and which when in line lead in mid-channel through the outer harbour. The lights are fixed white, elevated respectively 169 and 136 feet above high water, and visible from seaward between the bearings N.E. by N. and S.W. by S., from the distances of 19 and 18 miles. The lighthouses, constructed of iron and circular in shape, are painted in red and white bands; they are situated westward of the sea sluices, on the south shore of the canal, and bear from each other S.E. by E. & E. and N.W. by W. W., distant 612 yards. Position of low lighthouse, lat. 52° 27′ 45′′ N., long. 4° 34′ 30′′ E. On the exhibition of these lights, the temporary leading lights (red and white) will be discontinued. Variation, 161° W. |