New telephone battery

New Telephone Battery.

The battery herewith illustrated has just been brought out by the Western Electrical Supply company of St. Louis and is intended for telephone use. One of the advantages claimed is that the carbon binding-post does not protrude through the carbon, thus allowing a corrosion-to gradually ruin the connection, but is screwed in from the top, until perfectly firm, and then made secure by hot solder being poured around it. This makes a connection that cannot possibly corrode, and one that is impossible to work loose.

New Telephone Battery.

It will also be noticed that the carbon cylinder is not filled with a granulated carbon and oxide of manganese from the bottom of the carbon and then sealed, but that it is screwed to the cover in such a manner that it may at all times be easily removed and refilled. This, it will be noticed, is a very convenient feature.

The carbon used in this battery is of a selected stock, and no pains have been spared, in making the selection, to procure a carbon that is especially adapted to this class of work.

The workmanship is also worthy of consideration, as the parts are all carefully constructed and put together in a most desirable manner. It will be noticed that the rod which protrudes, through the cover is mounted on the cylinder zinc in such a manner that it cannot possibly become loosened, as a shoulder is placed upon the zinc so as to hold it firmly in position.

The zinc cylinder is especially thick, thus adding greatly to its life, and the zinc used is of unusual purity.

The cover of the battery is made of one solid piece of carbon, so thoroughly saturated with paraffine, while still, warm from the ovens, that it is absolutely an impossibility for the salts to creep over the top and corrode the connection.

The zinc rod protrudes through this carbon by means of a porcelain tube, which acts as an insulator, and helps to give life to the battery.

The glass jars are not made of the ordinary green glass, but are, on the contrary, made from the purest white flint glass that can be obtained, which makes them not only tough and, unlikely to break, but gives the battery a very neat appearance.