PYROXYLINE AUTOMATIC ELECTRIC FIRE ALARM.
In the exhibition hall at the convention of the International Association of Fire Engineers in Syracuse one of the attractions was a very simple and effective automatic fire alarm, just invented by Jehan de Froment, of Manitoba,Canada The most striking feature of this apparatus is its rudimentary simplicity and its instantaneous effectiveness. It works on a new principle, by means of crinitro cellulose pyroxyline. The protection of a building, by its ingenious disposition depends on the length of an electric conducting cord on which is twisted pyroxyline—this substance is an explosive, five times quicker than gunpowder. It is ignited at the least contact of a flame, or by a spark,or by heat only when heated to ninetyfive degrees C or 130 degrees (J. While very inflammable itself it can not set fire to a train of gun powder through which it. may pass and explode. The apparatus gives by means of an indicator board the exact location of the fire. The most striking experiment was the alarm given by the least touch of a match on a common cotton lace curtain, representing very exactly the Windsor conflagation. The inventor has proved conclusively howthisalarm would have prevented this catastrophe. Mr. de Froment was Utterly beseiged by a cro vd of chief engineers before whom he made more than one hundred experiments not one of which failed. The apparatus may be pronounced an ideal fire detective as without doubt it is a remarkable success. The temporary address of Mr. de Froment whose portrait is given herewith is hotel Martin,University place,Manhattan borough.
It was proposed by the authorities of the Rahway, N. J., reformatory, to drain that institution into the Rahway river. The State Sewerage commission, however, has very properly declined to approp riate funds for doing so. As it happened, the crude sewage could have flowed into the river with small present hurt, as the city of Rahway now uses the stream for sewage discharge above the reformatory, and there are few persons to be affected below that point. But the decision was wise, and had the State allowed the plan to be carried out as intended, it would have set the bad example of breaking its own laws, and of licensing a hurtful nuisance. The cost of a sewage disposal plant is not great, and the reformatory can well afford it.