Abstract: In a direct-oxidation ethylene oxide process of the type comprising a) reacting a feed gas stream including ethylene and a commercially-pure oxygen in one or more reactors and b) absorbing out ethylene oxide from the product stream from the one or more reactors in a first absorption zone, the improvement comprising recovering unreacted ethylene from an ethylene-rich argon purge gas stream via an absorber and a stripper in combination, recycling the recovered ethylene to the feed gas stream, and purging an ethylene-lean argon purge gas stream.

Abstract: An injection molding system is provided with a plurality of wall segments which are displaceable substantially radially for forming a substantially continuous wall which forms an internal wall of a hollow region which is intended to be filled with molten molding material. In a preferred embodiment, the wall segments are urged into sliding communication with one another and sealable engagement with a further wall portion by operation of an actuator assembly which is provided with canted pins which cause the wall segments to be moved radially inwardly and outwardly in response to orthogonal displacement of the actuator assembly. The invention is therefore particularly suited for forming molded articles having hollow interiors and/or internally ribbed portions. In an embodiment where a slot is desired in the molded article, a slot core is arranged to communicate with the molten molding material, so as to form the slot, and an ejection mechanism.

Abstract: Non-gelling cellulose ethers are purified by mixing same with a dialdehyde under acidic conditions and under high agitation, forming a slurry of the treated cellulose ether, rapidly transferring the slurry to a filter and then dewatering said slurry.

Abstract: A revolving skipping device has a crank with end portions connected to flexible loops over which a skipper may jump. The device includes a counter having a ratchet face with numerals indexed by one end of a pivoted pawl having a weighted mass on the other end cooperatively associated with the crank for recording the number of cycles jumped by the skipper.

Abstract: In an appliance having first and second surfaces which are joined to form an enclosure or housing therefor, a strain relief for a power cord is integrally formed therewith. The strain relief includes a pair of posts extending from the first surface for receiving the power cord thereon and a post extending from the second surface. When the surfaces are joined, the second surface post engages, deforms and holds the power cord in a path formed by the first and second surface posts.

Abstract: A compact chord organ which includes a unitary molded lower chamber portion and an upper chamber portion provided with integrally molded reed housings are pressed together to form a chamber. A volume control together with a treble keyboard and chord keyboards are cooperatively associated with the upper chamber portion and the keys of said keyboards are connected thereto by unitary resilient holding means. A unitary molded cabinet top is pressed together with the upper chamber portion so as to provide a housing for the volume control and pallet ends of the keys.

Abstract: A fluid dispenser which includes a container having a collapsible, recoverable portion and a valve assembly connected thereto which includes a flexing flap for closing and opening an air opening extending into the container for permitting air to enter the container, the air being compressed and used to dispense fluid from the container through a valve nozzle in response to the actuation of the collapsible, recoverable portion.