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Show Strong Caps of Paper. Astonishing strong paper caps, capable capa-ble of withstanding powerful blows, though extremely light in weight, have been invented by a shipyard employee, and are Intended to be worn by wrk- , men whose duties expose them to daa-ger daa-ger from falling objects, says Popular Mechanics' Magazine. The process by which the novel headgear head-gear is produced has not been divulged, hut It Is known that chemicals are employed em-ployed to harden the material, without adding to its weight. Several styles have been mnde, the lightest weighing about seven ounces, and others slightly more. In a recent test, a 1-pound h!t was dropped on one of them from a height of forty feet, with the result that a barely perceptible dent was made In the paper. The novel head coverings are proof against water aatl j acids, and are nonconductors of electricity. |