baber/WOPTO huggingface dataset:
Patent GB-1244869-A (GB)
Title: Electrical switch
IPC: H01H13/28
Filed: 1968-12-20
Abstract: 1,244,869. Mechanical switches; actuation. CROUZET. 20 Dec., 1968 [26 Dec., 1967], No. 60824/68. Heading H1N. In a limit switch having a control head 1, Fig. 1, which is adjustable to alternative positions by rotation about the axis of an actuating push-rod 5, the fixed switch contacts, 18, 19 are mounted within an insulating case 16, 17 and are engaged alternatively by bridging controls 32 pivoted on opposite sides of a slide 14 actuated from the control head via a push rod 5 and an L-shaped lever 6. The contact assembly case 16, 17 is mounted on the metal cover plate 20 by screws 53 and has a recess 17d containing a pivot pin 12 for the L-shaped lever 6. Carriers 30, Fig. 4, for bridging contacts 32 are pivotally mounted on each side face of the spring-loaded slide 14 and are retained in position by snapaction tension springs 31. Each bridging contact 32 is loosely mounted in a slotted plate 33 extending from each carrier 30 whereby the contact 32 is self-aligning with the movement limited by stops 30d. The external cables (not shown) extend through the metal casing 21 at threaded aperture 21c containing a cable stuffing box (not shown) and enter recesses 27a, Fig. 12, under terminal screws 29. A terminal strip 28 is held in position by lugs 28b, 26g in recesses of the insulating box 26a of the terminal box 25 and having bent-up lugs 28a engaged by the terminal lugs of the switch contacts which are inserted at F when the switch cover 20 is attached. In the example illustrated the control head 1 contains an operating plunger 3 having a cam face engaging a ball 4 mounted above the slidable push rod 5. Projections 1b on the head engage alternative recesses 20d in the switch casing and the assembly is held by screws 2 (not shown) engaged in threaded bores below the recesses 20d. In a modification the control head, Fig. 5 (not shown), contains a rotary spindle operator (36) having an operating arm (35) keyed at the exposed end. The spindle carries a cam (40) engaging the ball 4 above the push rod 5. Alternative detent cams may be mounted on the end of the spindle for engagement by spring-loaded rollers. Different shapes of cams are described whereby the operator may be retractive or retained set in each of its operated positions.
Patent GB-1287209-A (GB)
Title: Gunn oscillator
Inventor: AITCHISON COLIN STUART
IPC: H03B7/14
Filed: 1970-12-23
Abstract: 1287209 Electric component assemblies; semiconductors MULLARD Ltd 19 Jan 1971 61086/70 Headings H1R and H1K A Gunn oscillator (Fig. 1) comprises a quartz substrate S on which a circuit pattern is deposited as a thin film of gold and electroplated to increased thickness. The Gunn element G is mounted on a molybdenum disc M alloyed to portion P 1  of the circuit and a varactor diode D is similarly alloyed to portion P 2 ; the elements being interconnected over wires W 1 , W 2  to portion P 3  of the circuit. P 1  is earthed and P 2  is connected to one side of an output part whose other side is earthed. Series L 1 C 1  low pass filters are connected between bias voltage access point P 5  and P 2  and between access point P 4  to apply bias to the varactor diode D and to the Gunn element and diode; the capacitors C 1  being of interdigital comb form (Fig. 2, not shown). The Gunn element is alloyed to a molybdenum disc plated with gold over gold-germanium alloy, and is alloyed to a gold tab of the substrate, while a gold wire bonded to the element is also bonded to P 3  (Fig. 3, not shown). Varactor diode D is alloyed to P 2  over silver-tin alloy and gold wire W 2  is thermocompression bonded between the element and P 3 . An overlay capacitor between P 2  and a gold electrode over a dielectric layer may isolate the output terminal from the D.C. bias voltages, and a voltage between P 4  and P 5  biases the varactor diode while a voltage between P 4  and E biases the Gunn element, over isolating filters, and connections P 3  are earthed. The structure constitutes an equivalent oscillator circuit (Fig. 5) and the substrate is assembled with a coaxial output terminal and bias terminals connected over foils to P 4 , P 5 ; the terminals being insulatedly supported on an earthed metal member. A heat sink is clamped to the substrate to contact P 1  and carries a bias terminal (Fig. 6, not shown). In a modification (Fig. 7, not shown) a single wire connects the Gunn element and the varactor diode directly. In a further modification the heat sink supports the substrate, and is flanged to constitute the metal bias terminal supporting member, to which the coaxial terminal support is screwed (Fig. 8, not shown). Tuning formulae are given.
Patent GB-2001431-A (GB)
Title: Torsion meter
IPC: G01L3/12
Filed: 1978-06-05
Abstract: A torsion meter includes a digital display device having a rotatable digit defining mask 17 mounted on a shaft 20, and controlling light of an incident light beam to a fixed group of optical fibres 12 coupled to a display 10, to illuminate the elements of the display. The light beam is incident upon this mask from datum defining means also mounted on the shaft at a predetermined distance from the digit defining mask 17 and possibly including a light beam defining mask 21. Different digit representations are displayed, indicating changes in torsion in the shaft, as relative rotational displacement between the two masks varies, and when a datum position for the shaft is determined by the datum defining means. Possibly (Fig. 2 not shown), the datum position rotates with the light beam defining mask to provide a continuous display, appropriately arranged further groups of optical fibres being provided between the digit defining mask and the display for this purpose. <IMAGE>
Patent GB-2023989-A (GB)
Title: Process for the production of a spreadable milk product
IPC: A23C15/16
Filed: 1978-06-22
Abstract: A process for production of a spreadable milk product of low fat content, the cream being heated prior to processing and restored to the processing temperature and processed with relatively simple devices and relatively low consumption of energy, characterized by the fact that after the cream has been heated and then cooled down to the processing temperature a maximum period of 60 minutes is allowed to elapse without subjecting it to any step in the process, the further processing then being effected in a suitable device as soon as the said period, which does not correspond to that required for the maturing of the cream, has expired.
Patent GB-2029485-A (GB)
Title: An assembly of a lintel and a frame
IPC: E06B1/60
Filed: 1978-08-10
Abstract: An assembly comprising a lintel 1 having a socket 3 in a bottom surface, and a frame 6, characterised in that there is a connector 14 secured to the frame and to the lintel so as to connect them, wherein the connector 14 has a hole through it aligned with the socket, and a fixing device 17 is inserted through the hole into the socket so as to fix the connector and the lintel together. The fixing device 17 may be a nylon split pin and the connector 14 may be a flat plate pivotally secured at one end to the top of the frame and provided with a plurality of holes at the other end any one of which may align with holes 3 formed in the lower face of the lintel. <IMAGE>
Patent GB-2005483-A (GB)
Title: Dynamoelectric machine brush systems
IPC: H01R39/00
Filed: 1978-09-15
Abstract: Current collecting systems selectively using compatible materials in different applications for the moving and stationary contact members operate in an inert gas atmosphere, such as carbon dioxide containing a vaporous organic substance (in Chamber 40) to achieve operation at higher temperatures, velocities and current densities than is possible with conventional systems. Low friction and low wear rates are in part achieved by operating the contact members in a low temperature environment, cooling fluid passing through pipes 50 to the brush holder 42. The brushes 44 may be graphitic type with a dispersed metal of preferably Copper or Silver. The organic vapour is preferably at least one of a paraffinic hydrocarbon, an alcohol, a keytone, and aldehide (each having from 7 to 16 carbon atoms) and decalin. Results of experiments with different metals, vapours etc are disclosed. <IMAGE>
Patent GB-2007603-A (GB)
Title: Trailer Vehicles
IPC: B62D53/06
Filed: 1978-11-02
Abstract: A road going trailer has a body 1 with at least one pair of rear wheels 2 and at least one front castor or bogie 4 mounted on the body, and each castor or bogie has suspension means 29, and means 16 for resisting rotation of the castor or bogie about a vertical axis. A tow bar 7 is mounted on the chassis or body at 8 so as to permit generally vertical movement of the forward end thereof. Since the castor or bogie is not steered via the tow bar, jack-knifing is less likely to occur than in trailers with steered front wheels. <IMAGE>
Patent GB-2007425-A (GB)
Title: C.R.T. getter mounting
IPC: H01J29/00
Filed: 1978-11-03
Abstract: In a c.r.t. getter 10 is mounted via resilient member 11 and clamping member 12 in the neck which also contains resistive layer 3 to offset flash- over effects. The arrangement offsets shorting of the resistive layer 3 and distorted positioning of the electrodes as when member 11 is mounted on the gun system. Eyelets 13 or bent over ends of member 12 facilitate assembly using tongs. Band 12 or another clamping member may support a further electrode, diaphragm or lens element. The gun system may be fully insulated from layer 3, and the part of the layer extending into the neck may be an accelerating electrode. Layer 3 composition is specified as is band 12 to springs 9 distance. <IMAGE>
Patent GB-2042090-A (GB)
Title: Air pumps
IPC: F04B33/00
Filed: 1978-11-23
Abstract: An air pump constructed of a lever pivotally connected to a base with an air-pressure actuator located there between. Movement of the lever produces pressurized air in the actuator to be supplied to an inflatable object, such as an automobile tire. The actuator and the lever are pivotally mounted to the base. A relief valve apparatus 10' is connected to the actuator to prevent the actuator from exceeding a preselected pressure level. The relief valve apparatus includes an adjustable relief and a check valve 154' normally seated preventing conducting of pressurized air from the actuator. The relief valve can be isolated from pressure surges produced in the actuator by a diaphragm valve 204 so that the valve only responds to the pressure level existing in said inflatable object. <IMAGE>
Patent GB-2016626-A (GB)
Title: Tube couplings
IPC: F16L21/04
Filed: 1979-03-13
Abstract: In forming a longitudinal tubular conduit two tubes (1 and 1') are coupled together in end-to-end relationship. Tube (1) carries a flange (2) and tube (1') carries a flange (2'); the flanges (2 and 2') are longitudinally displaceable on their respective tubes and are interconnected by bolts (7). Each flange has a housing (5) which opens longitudinally towards the other flange and laterally towards its respective tube (1 or 1'). Mounted one in each housing (5) are sealing rings (3). Disposed between the flanges (2 and 2') is a tubular spigot (4) having opposed ends (6) which are received within each housing to compress the sealing rings (3). Each end of the spigot (4) has an outer peripheral frusto conical face (6A) which opposes a frusto conical face (5B) of the respectively adjacent housing (5) and during tightening of the assembly the opposed frusto conical faces (6A, 5B) move into engagement to restrict entry of the spigot into the respective housings, and thus to restrict the compression forces to which the sealing rings (3) are subjected and to locate the spigot (4) laterally with respect to the conduit (1, 1'). <IMAGE>
Patent GB-2049393-A (GB)
Title: A tobacco smoke filter
IPC: A24F13/04
Filed: 1979-05-31
Abstract: For removing tar and nicotine from tobacco smoke there is provided a filter in the form of a holder comprising an assembly 10 of detachably connected sections, a first section 11 having an inlet chamber 22 in which tobacco products such as cigarettes, cigars or cigarillos are held, smoke produced by the burning of said tobacco products being drawn by the inhalation action of a smoker towards a restricted outlet 53 in a mouth piece section 14, so that between said inlet chamber 22 and restricted outlet 53 the smoke moves along a predetermined path through each of the sections and is alternatively expanded and compressed to remove tar and nicotine. <IMAGE>
Patent GB-2029783-A (GB)
Title: Differential Gears
IPC: A63H31/00
Filed: 1979-06-26
Abstract: In a differential gear for a driven axle for a vehicle, particularly a model racing car, the rotational drives to and from the differential are applied about a common axis. The input drive is by way of a detachable gear wheel 28, and one of two output shafts 24, 25 has secured thereon a cylindrical member 32 which surrounds the differential gear and is adapted to serve as a wheel hub on which a tyre can be mounted between flanges 34. <IMAGE>
Patent GB-2040478-A (GB)
Title: Reflection Coefficient Measurements
IPC: G01R27/06
Filed: 1979-08-23
Abstract: A compact apparatus for the accurate measurement of complex reflection coefficients and VSWR of a device 16 over either a waveguide bandwidth or multi-octave bandwidth by preferably measuring two power levels at detectors 11, 12 associated with the device. The device is formed by a main coupling means 18 which in one embodiment is a main waveguide arm having means for receiving a test signal and means for transmitting the signal to the device being measured. In addition to the main coupling means (arms) there are also provided detector arms each having a detector associated therewith and means coupling signals from the main arm to the detector arms with the overall design being controlled in accordance with relatively simple formulae. The techniques of the invention are embodied herein in a waveguide embodiment, a stripline embodiment and a quasi-optical embodiment of the invention. <IMAGE>
Patent GB-2040586-A (GB)
Title: Insulation structure for a demagnetising coil
IPC: H01F27/32
Filed: 1980-01-04
Abstract: A demagnetising coil (1) e.g. for a colour television receiver tube comprises insulation covering the conductors (3) which is formed by at least two sleeves (6, 5) one inside the other, each sleeve being formed by a channel-section extrusion, the ends (7b, 8b, 10b, 11b) of which are folded over each other, and sealed together by heat treatment or by an adhesive. <IMAGE>
Patent GB-2044298-A (GB)
Title: Clothes Washing Machine With Ballasted Tub
IPC: D06F37/20
Filed: 1980-02-15
Abstract: In front-loading clothes washing machine, a tub has a cement ballast mass (13) mounted by means of a moulded plastics flange in the shape of a continuous hollow ring (11) of U- shaped section, which contains said ballast mass, and a plurality of radial ribs disposed in association with the front open surface of said flange for the purpose of holding said ballast mass in position. The flange is also provided with a peripheral groove (18) into which a ring (19) can be inserted to grip said flange against the edge of the cylindrical body of the tub via a sealing means (21). <IMAGE>
Patent GB-2069895-A (GB)
Title: Flanging by rolls
IPC: B21D5/08
Filed: 1980-02-22
Abstract: A method and apparatus for forming a folded edge in an elongated flat strip (12) of material comprising a supporting structure (14), a plurality of edge forming rollers (46, 48 etc.) arranged at spaced intervals along a path, said rollers being adapted to impart a shaped edge in an elongated edge of said strip as it is passed along said path, and a feed guide (16, 17) for guiding the strip (12) in a vertical disposition along said path with a vertically disposed flat surface of said strip adjacent said elongated edge. The guide 17 may comprise a felt pad 40. <IMAGE>
Patent GB-2070641-A (GB)
Title: Preparation of monospecific male-specific antibody and the use thereof for increasing the percentage of mammalian offspring of either sex
IPC: A61K35/52
Filed: 1980-02-29
Abstract: A method of manufacturing and a raw material and its useage are disclosed for increasing the percentage of mammalian offspring of either sex. The process of use utilizes a male-specific antibody coupled to a solid-phase immunoabsorbent material to effect a separation of sex-determining spermatozoa derived from a semen suspension. The male-specific antibody selectively binds male-determining spermatozoa, while the female-determining spermatozoa remain not bound and are recoverable. A male specific antibody that is monospecific is prepared from male cells subjected to a multi-step process which includes using these cells for the hyperimmunization of a female species and the preparation of an anti-serum which is purified as to specificity by a multiplicity of absorptions against female cells. The anti-serum is fractionated to yield male specific monospecific immuno-globulin which may be used to effect a separation of sex determining spermatozoa.
Patent GB-2048802-A (GB)
Title: A roof rack for a vehicle
IPC: B60R9/04
Filed: 1980-04-15
Abstract: A roof rack for a vehicle comprises a peripheral frame 1 moulded from synthetic plastics material and having a front portion 2 for extending along the front edge of the vehicle roof and two parallel side portions 2 and 3 for extending along on respective longitudinal edges of the vehicle roof. The frame has an inverted channel-shaped cross-section and is aerodynamically contoured to reduce the effect of drag on the vehicle due to the presence of the roof rack. The side portions 2 and 3 are interconnected by support rods 7, each of which has each end received in a semi-cylindrical recess formed in a ledge 5 presented by the respective frame side portion. The support rod 7 is attached to each frame side portion by a suitable fastener, such as a bolt 8 passing through the rod and the ledge 5 and receiving a nut within the channel of the frame side portion. <IMAGE>
Patent GB-2077166-A (GB)
Title: Hand-held power torque wrench with torque indicator
IPC: B25B23/145
Filed: 1980-06-09
Abstract: A pneumatically powered hand- held torque wrench has a dial gauge 74 arranged to display the amount of torque exerted upon a fastener by the wrench. A pointer 72 rotatable with the dial indicates the maximum torque attained during setting of a fastener, including manual torque applied by the tool operator, which pointer maintains maximum torque read-out until reset by the operator. A torque tube 34 connects a motor portion 14 with a handle 12 to resist axial misalignment between them upon torque application. A platform 44 is coupled to the portion 14 and carries a gear plate 48 also pivoted in the handle. Axial misalignment rotates the plate to rotate the dial for manual or power torque application. <IMAGE>
Patent GB-2065527-A (GB)
Title: Method and apparatus for forming the mouth rim of a resealable can
IPC: B21D51/26
Filed: 1980-08-21
Abstract: A can mouth rim is formed integrally with the main side wall of the can by inward deformation of one end of a sleeve blank (1) to preform a flange (3) for subsequent shaping to form the mouth rim as the other end of the sleeve blank is deformed outwardly to form the conventional flange (2) for receiving a crimped or "closed end" type of can end. <IMAGE>
Patent GB-2088183-A (GB)
Title: Plant Propagators
IPC: A01G9/20
Filed: 1980-08-27
Abstract: A plant propagator has a transparent arcuate cover supported on a water-tight tray within which is located foamed plastics for water retention whereby a humid atmosphere can obtain within the propagator. The tray may be supported on a framework and heated by a paraffin heater.
Patent GB-2063558-A (GB)
Title: Crystal oscillator device
IPC: H03H9/05
Filed: 1980-09-18
Abstract: A thickness-mode crystal oscillator device comprises an oscillator element (100) provided with main electrodes (2, 3) on opposite major surfaces, which main electrodes have lead electrodes (4, 5). The element (100) is mounted in a recess in an insulating terminal substrate (11), provided with lead-out terminals (12, 13). The recess is provided with a through-hole (81) in the bottom and parts (41, 42) of the lead-out terminals of the substrate are exposed in the recess. On assembly, the oscillator element is received in the recess with one of the main electrodes in registry with the through-hole and the lead electrodes connected to the exposed portions of the lead-out terminals. The assembly is then hermetically sealed by planar cover members. Each main electrode (2, 3) may be provided with two lead electrodes. The lead electrodes may terminate in coupling portions which extend over the edge of the crystal and on to the opposite major surface. Two or more oscillators may be mounted on a common substrate. <IMAGE>
Patent GB-2068872-A (GB)
Title: Accumulator conveyor
IPC: B65G47/26
Filed: 1980-11-14
Abstract: An accumulator conveyor has a plurality of zones, between an inlet end and a discharge end, arranged in groups. When an upstream zone in a group of zones is cleared, articles in all of the zones of the next upstream group can advance. Each zone has an article propelling member. The article propelling member in a subject zone is driven by a power transfer device when a housing in which the power transfer device is mounted is advanced toward the article propelling device. A diaphragm in the subject zone can advance the housing thereof. A sensor in an immediately downstream zone actuates a valve which directs fluid to the diaphragm of the subject zone. The valves of the zones of a group are interconnected so that fluid is directed to activate zones of the group upstream of a zone free of an article and all of the zones of a group are activated when the upstream zone of the next downstream group is free.
Patent GB-2068496-A (GB)
Title: I.C. engine valve clearance setting device
IPC: F01L1/20
Filed: 1981-01-29
Abstract: The invention relates to a device for clearance setting in a valve control system of an internal combustion engine, in which the cam 1 acts in order to move the valve stem 2 by way of a bucket 10, there being mounted on the base of the bucket and coaxially thereto two elements 14, 18 interconnected by a screw coupling for setting the clearance. <IMAGE>
Patent GB-2074022-A (GB)
Title: Supermarket checkout system
IPC: A47F9/04
Filed: 1981-03-20
Abstract: The system comprises an upstream goods reception section (13), a downstream goods discharge section (14) and an intermediate conveyor section (20) having a horizontal transport conveying surface, an optical reader comprising a laser scanner being provided beneath the horizontal transport surface for reading code markings on each article. The horizontal transport conveying surface comprises a flat transparent annular plate (21) arranged to be rotated in a circular path. Optical beams (28, 29) may be provided for controlling operation of the laser scanner. <IMAGE>
Patent GB-2097809-A (GB)
Title: Coating metal articles
IPC: C09J151/06
Filed: 1981-05-06
Abstract: Metal articles, for example metal pipes, are provided with protective coatings which comprise a layer of thermoplastic hot melt adhesive containing polar groups.