Abstract: A high-voltage power circuit breaker contains a plurality of phases which are contained in respective separate tanks which may be filled with sulfur hexafluoride. Each phase contains a respective trip-free contact operating mechanism connected to the interrupter contacts within the tank. Each of the trip-free operating mechanisms are closed simultaneously by a pneumatic closing mechanism contained in only one of the poles and connected to the other pole operating mechanisms by a common operating rod. Each of the poles are simultaneously closed by the pneumatic operating mechanism, and each pole can open independently of the other poles through its own trip-free operating mechanism.

Abstract: Process for formylating an alkyl-substituted benzene using carbon monoxide and hydrogen chloride, in the presence of aluminum chloride catalyst, in a reaction mixture which includes chlorobenzene as a solvent, and process for oxidizing an alkyl-substituted benzaldehyde using oxygen, in the presence of an autoxidation initiator, in a reaction mixture which includes cyclohexanone as a reductant.

Abstract: Poly(ethylene terephthalate) filaments of enhanced dyeability, low boil-off shrinkage (even in as-spun condition), good thermal stability over a large temperature range; and useful as texturing feed yarns and/or as hard yarns requiring no further drawing are prepared by spinning at extremely high speeds, and are characterized by a long period spacing above 300 A in their as-spun condition, and, whether in as-spun condition or after heat-treatment, by a low skin-core value as measured by a differential birefringence in relation to their stress measured at 20% extension (which correlates approximately with the spinning speed), a large crystal size, and low amorphous orientation. The continuous filament yarns may be draw-textured to provide textured yarns which also show enhanced dyeability. The staple fiber yarns also have very useful properties as compared with conventional staple yarns.

Abstract: A process for producing graphitic agglomerates, comprising the steps of: ing together in a suitable mixer a very fine graphitic powder, a coal such as anthracite, pitcoal, coke etc., and a binder such as coal tar pitch, starch, lignan and its derivatives such as lignin-sulphonates etc., thermoplastic and thermosetting resins; heating this mixture to about the melting temperature of the binder; and feeding the amalgamated mixture into a moulding press in which it is solidified into ovoid shapes, briquets and the like, or feeding it into a pelletizing plant.

Abstract: Disclosed herein is a tethered earplug construction comprising a pair of plasticized thermoplastic foam earplugs tethered together by one or more flexible plasticized thermoplastic cord elements. Attachment of the cord element to the earplug is achieved by ultrasonic welding.

Abstract: A web winding assembly of rolls is disclosed. The assembly includes a winding roll and a layon roll. The layon roll is of constant circumference with a flexible surface and is characterized by having an incompressible core, a volumetrically compressible resilient cushion element on the core, and a flexible, inextensible, outer covering on the cushion element. The winding assembly is used in film web handling operations to make windup packages of film web having improved surface hardness character and reduced tendency to telescope.

Abstract: Means for carrying a cable through a wall, for instance through the wall of the motor of a submerged pump, said means comprising a sealing rubber ring encircling the cable and which is tightened up with an annular sleeve to give a watertight seal between the motor wall and the cable. Between the sleeve and the wall has been mounted a tightening ring encircling the cable, this ring carrying members which bend towards the cable in connection with the tightening operation.

Abstract: A core chuck comprising an interior member having a longitudinal axis and n exterior camming surfaces, n jaws each having an interior camming surface, and 2n rollers radially intermediate the jaws and the interior member. Each of the rollers engages a camming surface defined either by the interior member or by a jaw, each camming surface is convex relative to the axis, and a roller cage maintains the circumferential spacing of the rollers.

Abstract: A lock for a railroad switch or the like, which comprises a housing having a socket at one end and an elongated shackle having an enlargement on one end and a recess on the other end for cooperating with locking members in the housing so as to be received in locking engagement therein. The operating member for the locking member is a rotatable and axially movable plunger. Springs are provided to bias the plunger in rotation to the locking position and forwardly. Pin and groove guide means is provided to maintain the plunger in the unlocking position and to allow the plunger to rotate to the locking position when the plunger is moved axially by insertion of the end of the shackle into the housing.

Abstract: A process for forming a photoresist which comprises:(1) applying to a surface the surface of a solid unexposed photosensitive layer of thermoplastic photosoluble or photodesensitizable material, the other surface being adhered to a film support, then in either order(2) exposing the layer, and(3) stripping the support, and then(4) washing away the exposed areas of the layer.The surface bearing the resist can be etched, plated, or treated in other ways.

Abstract: New carboxyalkylacylamino acids which have the general formula ##STR1## are useful as angiotensin converting enzyme inhibitors.

Abstract: Ethers, such as 2-[[4-[4-(trifluoromethoxy)phenoxy]phenoxy]]propanoic acid, methyl ester, useful for control of weeds.

Abstract: Prostacyclin analogs are provided having the structure ##STR1## wherein X represents .dbd.O or OH, R.sub.1 and R.sub.2 are OH or H, provided at least one of R.sub.1 and R.sub.2 is other than hydroxyl, R.sub.3 is H or alkyl of 1 to 4 carbons, m is an integer of from 2 to 5, and n is an integer of from 2 to 10, or pharmaceutically acceptable salts thereof. These compounds have been found to be potent inhibitors of arachidonic acid-induced platelet aggregation and bronchoconstriction.

Abstract: The oligomeric cyclic ether content of a tetrahydrofuran/alkylene oxide polymerizate is significantly reduced by bringing the polymerizate into contact with an acid-activated sodium or calcium montmorillonite clay.

Abstract: Compounds having the formula ##STR1## wherein R is hydrogen or alkyl, n is 0 or 1 and m is 1 or 2 have hypotensive activity.

Abstract: The fins of a heat exchanger are brazed to the exterior of the fluid-carrying tube by means of a lower melting point cladding on the tube which forms a secure bond between the tube surface and the unconfigured portion of the perimeter of the tube-receiving holes in the fins. The fins have a limited number of narrow tabs doubled back from the edge of each hole to function as longitudinal spacers between adjacent fins.

Abstract: A pay-telephone station equipped to handle local and long-distance calls includes a microcomputer which, at the end of a conversation or under certain conditions during a call, selectively collects predeposited payment items (coins, bills and/or prepayment entries of subscription cards) of different denominations calculated according to the debt incurred and to the denominations available to optimize the refunding of any excess to a user. The microcomputer also determines, upon the start of dialing by a caller, whether the initial deposit suffices for at least the basic charge on the type of connection (local or trunk call) sought to be set up and, if it does not, invites the user to make an additional deposit before aborting the call. The remaining credit balance is continuously signaled to the caller on a display unit and, even before actual collection, is diminished according to the applicable rate in response to each metering pulse arriving from the exchange.

Abstract: X-Ray contrast media are provided containing an X-ray contrast agent such as N,N'-bis[2-hydroxy-1-(hydroxymethyl)ethyl]-5-[(2-hydroxy-1-oxopropyl)am ino]-2,4,6-triiodo-1,3-benzenedicarboxamide, sodium diatrizoate, meglumine diatrizoate, sodium iodipamide, meglumine iodipamide and the like, and a liposome as a carrier therefor.

Abstract: A screen for a water intake has a movable filter element and a recuperation channel adjacent the filter element arranged below the lowest water level. The concavity of the recuperation channel faces the filter element. Suction is applied at the recuperation channel to cause an opposite circulation of water through the filter element at this point. The recuperation channel acts as a safeguarding device for living elements in the water and the opposite circulation of water at the channel detaches living elements from the filter element without traumatism and urges them into the channel. The channel is provided with a filter spaced from the filter element for preventing living elements being entrained by the filter element and carried to the air.

Abstract: Remoistenableadhesive compositions for use on pregummed substrates comprising, in aqueous medium, a low viscosity starch-acrylamide graft copolymer.