Abstract: An auxiliary manual control device for cells of a pneumatic system comprises an intermediary casing connecting each cell to a baseplate on which the said casing is normally secured. The casing is provided with piping for directly connecting the orifices of permanent pressure supply and input signals, and an OR gate with two inputs, whose output is connected to the output orifice of the baseplate, one of the inputs of the gate being directly connected to the output orifice of the cell, whereas the other input of the gate is connected by a monostable manual operated pneumatic reverser either to the exhaust, which represents its rest position, or to the pipe of permanent pressure supply.

Abstract: A binary frequency divider comprises a plurality of serially connected trigger circuits each comprising a switching means having first, second and third terminals and control means for connecting the first terminal alternately to the second terminal and to the third terminal; first storage means connecting the first terminal to the earth; second storage means connecting the third terminal to the earth, and an amplifier having a negative gain whose absolute value exceeds unity, said amplifier having an input connected to the third terminal and an output connected to the second terminal. This frequency divider is particularly adapted for use in the micro-wave and very high frequency ranges.

Abstract: A hand truck having a wheel supported chassis provided with wheel shafts at the front end and the rear end thereof, an article carrier frame being pivotally secured to the said front end of the chassis so as to be swingable between an upright charging position and a rearwardly inclined transport position, and means being provided for supporting the carrier frame in this position relatively to the chassis, characterized in that the chassis is made in such a manner that the rear wheel shaft is movable towards and away from the front wheel shaft, and between the carrier frame and the rear wheel shaft to be moved rearwardly in response to the carrier frame being tilted rearwardly from its upright position.

Abstract: The invention relates to a pivoting device for a door or the like.The door hinge is detachably fixed to the lower wall of the door, with which it can be made integral by rotating the lever fixed to the hinge by a quarter of a turn.The present device can be used with particular advantage for dismantleable doors of metal cabinets containing electrical equipment.

Abstract: The present invention relates to a guidance system for the movable element of a contactor.The shaped sections constituting the walls have channels formed during the extrusion thereof wherein are located pivoting and elastic restoring members which guide the contact unit.

Abstract: The circuits comprise a first part located at a control station where the trolley lies when not operated, and a second part located on the trolley. The first part comprises a three phase power circuit and a control circuit for the trolley. The connection between two parts is effected by only three active conductors, although the power supply is of the three phase type, the control signals being transferred to the second part when only two of the three phase conductors are coupled to the second part. To this end, a time lag contact controlled by a relay of said control circuit is inserted in the coupling of one of the three conductors and the circuit of the second part includes a memory relay which is energized by means of the two other conductors and which is no longer energized when the third phase is applied to the second part.

Abstract: A deck anchor, for securing in a hole in a metal plate in concrete building structures, has a stem with a connector at one end, and an assembly slidable on said stem and urged by spring loading towards the connector. The assembly includes a washer, and a collar portion, initially integrally joined by rupturable bridging means. When the anchor is driven, by force applied on the stem, to thrust the assembly through a hole in a deck plate, the collar portion is separated from the washer, such that the anchor becomes retained in the hole of the deck plate with the washer spring-urged against one major face of the deck plate, and the collar urged against the other major face of the deck plate.

Abstract: A heat pump having a set of "thermoelements" that have substantially the same thickness and at least two radiant flat elements that permit the diffusion or absorption of the heat, and is characterized by being made in the form of a sandwich comprising, in addition to the said radiant elements, two supports that are electrically insulated and effectively conduct the electricity, placed on either side of the thermoelements, and securing both the electric coupling of the thermoelements to one another and also the thermal coupling of the radiant elements to the thermoelements, while allowing a mechanical coupling of all the elements, each of said supports possessing a first face contacting with its entire surface one of the radiant elements and a second face covered by a layer of discontinuous elements that are effective conductors of electricity, these elements being distributed on the two supports in such a manner that, when the thermoelements are locked between them, the said conductor elements realize the ser

Abstract: A carriage and drive mechanism for use in mines in which the drive engages a continuous chain and moves the carriage along a rack; including a chain deflecting device and chain guide members.

Abstract: The present invention relates to a member for connecting a conductor to a pin.It comprises an insulating sleeve surrounding a prismatic metal casing within which a tongue defines two recesses for the pin and conductor respectively, whereby the securing of the latter results from the introduction of the former.The invention can be applied to cabling devices, notably those using systems of parallel pins.

Abstract: A stretcher holder device, for use in vehicles such as ambulances or in the open or in buildings, has a frame with uprights and longitudinal cross-pieces which support individual stretchers. In a preferred arrangement the longitudinal cross-pieces define between them a central gap to receive and guide a stiffening base projecting at the underside of the stretchers. The stretcher holder frame can support a plurality of stretchers in stacked condition, with each stretcher spaced vertically from the next in the stack.

Abstract: A control mechanism for operating the drafting gate of a drafting race comprising a superstructure adapted to be mounted above the race, an operating handle suspended from the superstructure substantially parallel with the race for rocking movement about a substantially horizontal axis substantially parallel with the race and at a position so that it can be gripped by an operator standing at one side of the race, one end of the operating handle being coupled to the drafting gate to effect rotation thereof.

Abstract: For use as an anti-theft alarm for a motorcycle, an electrical alarm device has a casing for securing to the frame of the motorcycle. The casing contains a rechargeable battery, an electric horn, a mercury tilt-switch, and a key-operable switch accessible from the exterior of the casing. The circuit can be set to "live" by use of a key, and the mercury tilt-switch is so disposed in relation to the frame of the motorcycle that, when the motorcycle is raised into an upright position, the mercury tilt-switch is closed to complete the current circuit to the horn. The key-operable switch may have a second position in which it disconnects the horn circuit, and connects the battery across a current outlet in the wall of the casing, for take-off of current or for connection of means for charging the battery. The casing may include an amp-hour meter connected, in the second position of the switch, in parallel across the poles of the battery.

Abstract: An improved machine for ironing of the collars and lapels of articles of clothing includes a dummy secured on a shaft rotatable about a vertical axis, a first mould disposed laterally of the dummy and movable orthogonally to the rear portion of the dummy and having a shaped configuration to coincide with the lapels of the article of clothing, and a second mould disposed vertically above the dummy and movable in a direction coinciding with the axis of the dummy and having a shaped configuration to coincide with the upper portion of the dummy for ironing of the rear portion and lateral parts of the collar.

Abstract: A device for examination by ultrasonic pulses to produce better image resolution, of the type including the formation of a B-type intermediate image of the object examined on the target of a recording tube, the reading of this image by television type scanning, and its visualization on a television screen, in which there is a modulation of the television scanning, so that the beam exploring the intermediate image describes hyperbolic arcs identical with those which correspond, in the intermediate image, to each point of the object examined.

Abstract: A length or panel of welded wire rod mesh with at least one rigid metal strengthening member said length or panel having corrugations or deformed regions at speed intervals to off-set rods extending in the same direction in said corrugated or deformed regions from parallel rods between said corrugated or deformed regions, the said rigid metal strengthening member being passed through at least two corrugated or deformed regions so that said off-set rods lie on one side of the member and the parallel rods between the corrugated or deformed regions lie on the side of said member.

Abstract: The present invention relates to a composition for permanent magnets of the family "rare earths-transition metals" wherein in a structure of the SmCo.sub.5 type, 2 to 15% of the cobalt atoms are replaced by nickel.This can be applied to the production by the sintered powder technique of permanent magnets having a particularly high intrinsic coercivity.

Abstract: One of a member to be reinforced and a reinforcing material is rotated relative to the other and both are made to contact with each other. Under a considerably high initial pressure, the penetration of the reinforcing material into the member to be reinforced is effectuated and under a reduced pressure, frictional welding is done at the contacting portions of the member to be reinforced and the reinforcing material. As the result of the stop of the relative rotation, the welded portion is cooled to be coagulated and the unification of the member and the material results. Before the stop of the relative rotation, the pressure may be raised again.

Abstract: The invention relates to adjustable storage arrangements, such as racks, which may be readily erected and dismantled from a plurality of interconnectable, elongate shaped members comprising uprights and/or cross-pieces, at least some of which have substantially the same, open or channel cross-section, generally resembling a triple "sigma" contained within a rectangle. Trapezoidal re-entrant areas are provided on three sides of the said cross-sectional shape, and equidistant engagement apertures are situated in at least one line parallel to the longitudinal direction of each shaped member which comprises an upright, in the larger side of the upright opposite the open side thereof. Angle brackets are secured generally perpendicularly to the ends of the shaped members which form the cross-pieces, which brackets are capable of fitting round the front part, and either the right or left-hand part, respectively, of the triple-sigma-shaped upright.

Abstract: The invention relates to a pneumatic indicator comprising a member or body and a transparent window behind which a spherical pivoting moving body can assume two distinct positions visible from the outside when the end of a lever placed in the member transmits to a cavity of the moving body, either the movements of a membrane or of a piston under pressure action or the movements resulting from a restoring spring.Such indicators are particularly used in equipment for monitoring the operation of an installation controlled by automatic pneumatic equipment or in industrial atmospheres where incandescent lamps cannot be used because of the explosion hazard.