Abstract: A web of gray cotton fibers is entangled by passing it under a series of low pressure liquid nozzles or jets which are oscillated in a direction transverse to the direction of travel of the web. The entangled web is then subjected to a cotton scouring step, and then dried, to produce a strong coherent nonwoven fabric that requires no resin binder and has a high capacity for water. Particular parameters of liquid pressure, frequency and amplitude of oscillation of the nozzles or jets and energy transferred from the jets to the fibers have to be maintained.

Abstract: There is disclosed apparatus which is inserted in an electrical circuit, such as, for example, between an incandescent lamp and the socket therefor, to provide automatic disconnection or opening of the circuit after a predetermined time period and which includes an acoustically activated abort means to interrupt the disconnect cycles and means to reset the cycle for another predetermined time period. The apparatus may be installed, as mentioned, between an incandescent lamp and the socket therefor, installed in a common wall switch, incorporated into a common appliance receptacle or plugged into a common electrical outlet between the outlet and an electrical appliance or a lighting system.