Abstract: A tape printer which is for use with pressure-sensitive paper tape and which prints characters in the form of dots disposed in a 7.times. 7 or 7.times. 5 matrix has its printing elements formed by a stack of seven metal strips. Each of these strips has an associated electromagent and upon energization of any one of these electromagnets the associated strip is moved longitudinally to cause the paper tape to be squeezed between an end of the appropriate strip and a rectilinear edge of a fixed anvil so as to cause a dot to be printed. The dimensions of such a dot are determined in one direction by the width of the operated strip and in the other direction by the width of the edge of the anvil. An electric motor is provided to advance the tape.

Abstract: An implement rack having upper and lower slotted members mounted on a support. The slots are so shaped and disposed as to receive, from the front of the rack, knife blades at off-vertical angles, the knives then resting on the upper member at the bases of their handles and swinging toward vertical positions. Tongues between the members prevent the blades from being withdrawn forwardly from the rack in their vertical or more nearly vertical positions. Such operation of the rack is predicated upon the utilization of knives having their centers of gravity in the blades. The rack also can be used for culinary utensils. The invention further encompasses a unique method of inserting such knives and implements into the rack, of retaining the knives within the rack in a manner which reduces the likelihood of accidental release, and of permitting convenient removal of the knives from the rack. This invention is intended for use as a fixture to be affixed to a vertical surface.

Abstract: A displaceable frusto-conical channel is provided typically axially in-line in a housing, the housing being interposed in a fluid supply pipe, e.g. a water supply line. The truncated smaller end of the channel is downstream in terms of fluid flow. A ball is disposed in the channel so that a surge or high flow of fluid will move the ball downstream within the hollow channel until the ball constricts and stops fluid flow by contact with the inner wall of the channel. To complete the device, the upstream end of the channel is spring-loaded and a rod acts against the downstream end of the channel, typically in conjunction with a timer. When the timer is set, the rod holds the channel away from the tapered internal surface of the housing, to permit continuous fluid flow.

Abstract: A system for concomitantly shutting off a motor vehicle air conditioner compressor and lighting a warning light, when the engine of the vehicle overheats, and for concomitantly allowing operation of the air conditioning unit and shutting off the warning light when the engine is at normal operating temperature. The system features a two-position electrical switch such as a solenoid or relay which is electrically connected to a heat sensitive switch immersed in the liquid cooling medium of the engine. The heat sensitive switch has two states, depending on the temperature of the liquid cooling medium. In one state, i.e. when the liquid cooling medium temperature is normal, the two-position electrical switch is in a first position, and the electrically controlled clutch of the air conditioner compressor is closed and the warning light is not lit. In the other state, the two-position electrical switch is in a second position and the clutch is open, and the warning light is lit.

Abstract: A screw-on child resistant double cap closure in which the inner screw cap has printing and coloration on the exterior surface of its crown and the cover is transparent. The cover and the screw cap include two halves of a selectively engagable, normally disengaged, torque coupling.

Abstract: A light extractor-diffuser for a camera flash unit or the like. The device bounces the light off a central bilateral trapezoidal panel which is supported by two triangular shapes on its sides. The trapezoidal panel has a wide terminal portion spaced away from the triangular shapes.

Abstract: An alarm system for an invalid in a hopsital bed includes electric switches placed on top of the side rails and foot rail so that a force applied to any of said switches by a patient results in activation of a warning device. In addition, means is provided for selectively illuminating the hospital bed. Two basic configurations of electric switches are provided, both of which are characterized by the provision of a first switch member which is actuated by light pressure or force, and a second switch member which is actuated by heavier pressure, e.g. when the patient attempts to climb or crawl out of the bed, which could result in injury to the patient due to a fall from the bed to the floor. The switch members when actuated serve to close electric circuits which may sound a buzzer, and/or a call bell, and/or illuminate the bed, so that a nurse or attendant is amply alerted to give attention to the patient.

Abstract: A protective relay arrangement for an A.C. power system wherein the occurrence of a fault is detected by monitoring the phase or amplitude relation between at least one pair of signals which, when a fault occurs in the system, are functions of a current and/or voltage which would have occurred in the power system if the or each emf source in the system had a value equal to the pre-fault voltage at the point in the system where the fault has occurred.

Abstract: A novel composition constituting a mixture of 1, 3, 5-tri (variegated alkanols) hexahydro-s-triazines and 1, 3, 5 trialkanol hexahydro-s-triazines, where the alkanol moieties have from 1 to 4 carbon atoms. The composition is made by reacting a mixture of monoalkanolamines, preferably in substantially equal gram-molecular proportions, with paraformaldehyde and stripping off the water formed by the reaction. The composition is used by adding a bactericidally or fungicidally effective amount thereof to a carrier which is to be protected against the activity of bacteria or fungi or which is to be applied to a substrate to be so protected. The carrier may be a solid medium, such as solid soap or a liquid medium such as liquid soap, water or an organic liquid, e.g., a liquid alcohol or a liquid hydrocarbon. Typical carriers are cutting oil, hydraulic fluid, varnish, shellac, water- and oil-based paints, methanol, ethanol and propanol, liquid adhesives, cleaners and disinfectants.

Abstract: A ground fault circuit interrupter (GFI) in which a load circuit is energized through a normally closed magnetically latchable circuit breaker. When no fault exists that is of sufficient magnitude to actuate the GFI, the latching coil of the circuit breaker is ineffective, whereby the circuit breaker remains closed. The coil is connected to the amplified DC output of a ground fault sensing circuit and is energized in a certain sense to open the circuit breaker upon the occurrence of a fault, the circuit breaker then being magnetically latched open. A capacitor is continuously DC charged in a certain sense by the AC supply line through a rectifier. To reset the circuit breaker the capacitor is selectively connected across the coil to discharge a pulse of a sufficient magnitude in a proper sense to reversely energize the coil enough to release the magnetic latch and allow the circuit breaker to reclose. The GFI is tested by closing a circuit that simulates a fault of the low magnitude which is to be sensed.

Abstract: An improvement in an etching process in which the etched product, the surface of which is covered with a film of aqueous etching liquid containing ions of the material etched, is rinsed with an aqueous liquid and the resulting liquid, now containing said ions in dilute concentration, is passed through an ion exchanger to selectively remove the ions from the rinse liquid which thereupon can be reused or discharged, without ecological damage, from the ion exchanger. The ion exchanger when laden with such ions is regenerated by passage therethrough of at least a portion of an etcher make-up aqueous replenishing solution which contains a zero or low concentration of said ions. The resulting replenishing solution portion, now containing a small concentration of these ions, is passed to the etcher, e.g., to the etcher sump.

Abstract: A saturated reactor of the type, for example the treble-tripler reactor, in which groups of 3-phase windings are connected in series to produce multiple flux phases in respective core limbs to achieve harmonic compensation. The windings are connected between the line terminals and a star-point which cannot normally be earthed if large 3rd harmonic components are to be avoided. In this invention the zero-sequence impedance of the reactor is kept at a low value by duplicating the complete primary winding and connecting the two duplicates in zig-zag star. The resulting star point can then be earthed without upsetting the harmonic compensation of the reactor.

Abstract: An apparatus for administering a fine mist of an ophthalmic solution to the eyeball of a human. The apparatus is a spray applicator which features the provision of a baffle in the lower portion of an eyecup. The baffle is spaced from the inner surface of the eyecup, with the lateral ends or the entire lower periphery of the baffle being attached to the inner surface of the eyecup. A container such as an aerosol can or plastic squeeze bottle holding the ophthalmic solution is provided, together with ancillary elements to transmit the solution, so that the ophthalmic solution can be projected at will, i.e. when the eyecup is emplaced over an eyeball, into the lower portion of the eyecup opposite the baffle, so that the solution impinges on the baffle rather than directly impinging on the eyeball, the solution thus being effectively dispersed into a mist of small droplets within the eyecup, which mist thus uniformly and gently coats the outer surface of the eyeball.

Abstract: A link chain to be used as a watch band, bracelet, or other item of jewelry. The chain includes a string of readily detachable link elements to permit the length of the chain to be quickly and easily adjusted, as desired, by removing or adding link elements at any point along the chain. Each link element consists of a journal link-half permanently hinged to an associated bearing link-half. The journal link-half of each link element includes a solid pintle having two ends, one end being constructed and arranged to be rotatably received in a permanently closed bearing and the other end being constructed and arranged to be rotatably received in a selectively openable bearing at an end of the bearing link-half of an immediately adjacent link element whereby to hingedly join the link elements. The selectively openable bearing has a manually operable closure shiftable between a first and a second position and biased to the first of these positions.

Abstract: Each section of a conduit with a constant diameter axial passageway has male pipe threads formed on its outer wall surface at one end. A coupling sleeve is retained captively on the other end of the conduit section by a resilient lock ring means positioned partially in an annular lock ring groove disposed on the outer surface of the conduit section axially inwardly of the end face of the conduit section, i.e. -- in a direction along the conduit section away from this end face, and partially in an annular lock ring groove disposed on the inner surface of the coupling sleeve. The lock ring means spans the two annular lock ring grooves to prevent the coupling sleeve from being pulled axially outwardly off the conduit section.

Abstract: An improved vibrodriver for sinking a vertically elongated element of substantially uniform horizontal cross-section into or extracting such an element from the ground. The element is one of a plurality of like elements arranged side-by-side along a straight or curved line. The vibrodriver includes at least one pair of eccentrics with each eccentric or a portion thereof situated on a different side of the element. The vibrodriver has a waist which is narrower than the width of an element along the line; beyond the waist and toward its lateral ends the vibrodriver has at least one portion of each side thereof which is wider than the width of an element, thereby enabling the vibrodriver to be of relatively short horizontal length perpendicular to said line and yet to exert a substantial vertical vibratory force during the sinking or extraction of an element juxtaposed to at least one other element.

Abstract: In a nuclear-reactor power-generating installation having a main and an auxiliary steam-generating boiler, both arranged to receive heat from the reactor core (for example by circulation of reactor coolant gas), and having a turbogenerator which includes a multistage steam turbine through whose stages the steam from the main boiler passes in sequence, there being a steam reheater unit connected between two of the stages to provide reheating of the steam from the main boiler, the invention provides that the auxiliary boiler is connected to supply to the reheater unit steam which reheats the said steam from the main boiler.

Abstract: A light walled circular metallic conduit including a first conduit member and a second conduit member. An expanded section is at one end of the first conduit member and an end of said second conduit member is snugly telescoped within said expanded section of said first conduit member. The expanded section has external threads thereon and a nut is provided which is internally threaded. Inside the nut is a split ring. The nut encircles a seal. Upon tightening the nut the split ring bites into the second conduit member. A skirt is affixed to the nut and includes a finger which extends into a gap between the nut and the second conduit member so as to prevent water from leaking into said gap and into the interior of said first and second conduit members.

Abstract: In a water-cooled pressure-tube reactor in which each fuel-containing pressure tube is included in one of two main coolant circuits each of which comprises a bottom header supplying coolant water to the pressure-tube lower ends, a steam drum to which the pressure-tube upper ends are connected, main circulator means pumping water from the steam drum to the bottom header, further pump means pumping an auxiliary coolant water flow from the steam drum of each coolant circuit directly into the pressure tubes of that circuit in the form of spray cooling in such pressure tubes, with the bottom headers of the two circuits interconnected and main feedwater pumps supplying make-up water to the steam drums to replace generated steam, the invention provides, between the main feedwater pumps and the steam drums, water inlet valves which are controlled by pressure in the coolant circuits and are arranged to close in response to a fall in such pressure, and also provides further connections arranged to supply feedwater dire

Abstract: An alternating current generator of the kind having a superconductive direct current field winding wherein: the field winding is carried on the stator; the armature winding is carried on the rotor; shaft and current collection from the armature winding is effected via a liquid metal slip-ring arrangement. The invention also provides a liquid metal slip-ring arrangement, for use with dynamo electric machines, comprising a first annular member which rotates with the machine rotor, and a non-rotating second annular member which is electrically connected to the first annular member via the liquid metal of the slip-ring arrangement, and arranged to move axially with the first annular member during axial movement of the rotor.