SHALDER'S FOUNTAIN Pume.—The principle upon which this pump is constructed,
is that of avoiding the friction of the common pump. This is accomplished by substituting for the sucker a metal bucket, attached by a flexible leather connecter to the suction-pipe. This bucket has two valves or lids, which, when it is drawn upwards by means of the pump-handle, open before the pressure of the water. The connecter prevents the return of the water, and assists in eject.. ing it from the spout ; • it also limits the space in which the bucket acts. The connecter is formed of a disk of strong leather, and blocked by machinery into the shape of a truncated cone ; it lasts for two or three years in constant use, and, when worn out, may be easily removed, and a fresh one substituted. The action of the handle is that of a lever ; it is simple, and obeys a slight pressure, as there is no re- sistance to overcome but the mere weight of the bucket. By means of this pump, twice the quantity of water can be raised with half the quan. tity of labour. Another advantage of this improvement is, that the pump is not liable to become choked, to leak, or to get out of order, as the common pumps. This invention is applicable to every purpose for which a pump is used, or wherever water is to be raised, for mining pun. poses, garden and fire engines, as a force and lift pump ; and it has been found a most efficient substitute for the old chain-pump used in the Navy. On the score of economy, its durability is a recommendation, in addition to that of its first cost being less than a common pump. The value and utility of this invention are sufficiently apparent. The pro- prietor of the patent is Mr. JOHN BEARE, of Pall Mall East ; where the pump may be seen and tried. THE ROYAL. TABLET, a novel invention of Messrs. SMITH and DOLIER, is a very great improvement upon the various substances hitherto used for memorandums, sketching, or any temporary purpose. It appears to be a species of porcelain ; is of a beautiful white ; and has a finely.. granulated surface, which forms a very pleasing medium for writing or drawing, for which a black-lead pencil is used. The marks are readily effaced by moisture, without leaving any trace; in this respect it is quite unique.
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