baber/WOPTO huggingface dataset:
Patent GB-2027272-A (GB)
Title: Semiconductor devices
IPC: H01L21/60
Filed: 1979-07-23
Abstract: A s.c. device comprises a s.c. substrate 51 an electrode pattern 52 thereon, and a protective coating 56 of a resin either on a surface, an edge portion or a corner of the substrate so that during subsequent mounting steps such as scribing the wafer or connecting the electrode pattern to a conductor pattern 32 of a printed circuit board 31 through openings in the coating 56, the substrate is not damaged. Typically the thickness of the protective coating is more than 2 ???m. A PSG coating 53 may be provided underneath the coating 56. <IMAGE>
Patent GB-2056198-A (GB)
Title: Power supplies for printed circuit boards
IPC: H01R12/70
Filed: 1979-08-02
Abstract: A control circuit for controlling application of power to and removal of power from a circuit board includes an R-C element 31, 32 which can be selectively placed in a charging or discharging mode by a logic element 20 according to whether the board is being inserted or removed from a rack. The arrangement is such that when the board is inserted the power supplied to the board by a voltage regulator 18 increases gradually as the capacitor 32 charges whilst when the board is removed the power supplied gradually decreases as the capacitor 32 discharges. <IMAGE>
Patent GB-2031442-A (GB)
Title: Positive-acting photoresist composition
IPC: G03C1/72
Filed: 1979-09-05
Abstract: A positive-acting light-sensitive composition having excellent utility as a photoresist, comprising: (a) a crosslinked urethane resin formed by a catalyzed crosslinking of a non-heat reactive novolac phenolic resin and a polyisocyanate compound; (b) an epoxy resin having an epoxide equivalent weight of less than about 400 and a curing agent therefor; and (c) a positive-acting photosensitizer. Upon applying to a substrate and drying, the epoxy resin cures, resulting in a film useful as a photoresist or in the formation of lithographic printing plates.
Patent GB-2059546-A (GB)
Title: Lined Hollow Shafts
IPC: B29C63/28
Filed: 1979-09-08
Abstract: A hollow member, much as a shaft 10 for a vehicle drive has a fibre reinforced synthetic resinous material lining 12 which is applied by covering a deformable core of external dimensions less than the corresponding internal dimensions of the hollow member with fibre reinforced synthetic resinous material inserting the core and its covering into the hollow member, deforming the core to bring the covering into intimate contact with the interior of the hollow member, maintaining this deformation until the resinous material has cured sufficiently and thereafter allowing the core to return to an undeformed state whereby it may be withdrawn from the lined hollow member. As shown the hollow shaft 10 to be lined may be made of stainless steel, other metals and alloys or plastics or fibre reinforced material. The resinous lining 12 may be reinforced with carbon fibres. The core may be of rubber or plastics and expanded by heating rods (14), elements (16), a hot air duct (18) or by fluid pressure. <IMAGE>
Patent GB-2031849-A (GB)
Title: Packaging of hygroscopic particulates
IPC: B65D81/24
Filed: 1979-10-11
Abstract: A multilayered container for the storage of particulate hygroscopic substances comprises an outer layer 14 having a low water vapour transmission rate and an inner layer 16, of at least one thickness of paper having a moisture content significantly below the paper's equilibrium moisture content. The layer 14 may be of aluminium foil or polyethylene covered by a paper layer 20, and the layer 16 may be covered by a water permeable layer 18 of hydrophobic material. <IMAGE>
Patent GB-2042381-A (GB)
Title: Safety driving plate
IPC: B23B33/00
Filed: 1979-11-05
Abstract: A circular carrier grips the workpiece and is driven by means of a small lug on its side face engaging a rectangular slot in the face of a driving plate mounted around a machine headstock centre. The driving slot in the face of the his plate is completely hidden by this carrier so that two concentric discs are presented to the operator without any projections or holes. The arrangement eliminates backlash reversals. <IMAGE>
Patent GB-2063664-A (GB)
Title: Mattress foundation
IPC: A47C23/00
Filed: 1979-11-23
Abstract: The mattress foundation utilizes an upper 33 ... 38 and lower frame assembly 26 ... 32 separated by a flexible, resilient material 40, which may be in the form of blocks, strips, or slabs of flexible, resilient material, with the upper frame assembly preferably being somewhat flexible so as to be capable of deforming from its normal planar condition when subjected to more concentrated loads. The material separating the upper and lower frame assemblies is selected to have a resilience which will support the weight of one or two persons while distributed over the mattress foundation without substantial deflection, but which will deflect significantly when subjected to an individual's weight in more concentrated form, such as occurs when an individual sits on the edge of a bed or is getting into or out of the bed. The frames are preferably of wood and the material 40 urethane foam, optionally with expanded polystyrene beads dispersed in it, or it may be rubber or latex foam. <IMAGE>
Patent GB-2044023-A (GB)
Title: Semiconductor switching circuit
IPC: H02M3/135
Filed: 1980-02-19
Abstract: A semiconductor switching circuit comprises three triacs 1, 2 and 3 having terminals A, B and C for connection to an alternating current supply, terminals X, Y and Z for connection to a load, and gate electrodes connected to a triggering arrangement. The triggering arrangement comprises three transformers having primary and secondary windings, the primary windings applying triggering voltages to the gate electrodes of the triacs 1, 2 and 3 when the secondary windings are effectively short circuited through a circuit including rectifiers 10, 11 and 12, and SCR 23, when a switch 21 is closed. In an alternative arrangement, the triggering arrangement includes optical isolators. <IMAGE>
Patent GB-2072729-A (GB)
Title: A belt reversing tool
IPC: D06G3/02
Filed: 1980-03-31
Abstract: A belt reversing tool (2) for use in reversing belts after they have been sewn on the wrong side, which tool comprises an elongate body (6) having a head portion (8) at one end, the head portion being such that it can be fixed to one end of the belt and pulled through the belt by gathering lengths of the belt on the elongate body and then pulling the gathered lengths of the belt on the elongate body over the head portion. <IMAGE>
Patent GB-2047810-A (GB)
Title: Rotary pumps
IPC: B29B13/02
Filed: 1980-04-09
Abstract: An apparatus for dispensing a heat-sensitive liquid polymeric composition includes a source of the liquid e.g. a reservoir 12, a rotary pump such as a gear pump 14, receiving the liquid and pressurizing the liquid as it passes therethrough, and cooling means 44, 46, 52, 54 associated with the pump for cooling the liquid therein to prevent thermal degradation thereof. The liquid may be an adhesive composition. A gas may be introduced into the liquid in the pump to produce a gas/liquid mixture, wherein the gas subsequently expands, and the pump may have two pairs of gears operating in series relationship. The cooling means may comprise a block of aluminium 16 on which the pump is mounted and containing passages 36, 38 and 44, 46 for the outgoing liquid and for the coolant, respectively. <IMAGE>
Patent GB-2051992-A (GB)
Title: Washing and filling beer kegs
IPC: F16L37/56
Filed: 1980-05-06
Abstract: In a machine for washing or filling a beer keg via a head having a movable probe to open the valve means of the keg closure unit, complementary magnetic means carried by the probe end the head for indicating when the probe is in a fully extended position within the head to open the valve means and to seal with the closure unit.
Patent GB-2053068-A (GB)
Title: Improvements relating to electric rotary hammer drills
IPC: B25D17/00
Filed: 1980-06-04
Abstract: A portable electric hammer drill incorporates an electric motor 12 disposed close to the handle 13 of the tool and with its axis of rotation at right angles to the axis of rotation of the drill bit holder 10, and a gear 15 on the motor shaft meshes with a first pinion 16 driving the holder in rotation. A second pinion 25 meshes with the first pinion 16 and drives the driving piston 30 of the mechanism for transmitting impacts to the holder. The axes of rotation of the holder 10, the first and second pinions and the gear 15 are coplanar, and the first and second pinions are on diametrically opposite sides of the said gear, the first pinion being nearer the holder. This arrangement enables the motor to be placed nearer the handle than if the first pinion were in direct mesh with the said gear, and thus improves the balance of the tool. The arrangement permits the diameters of the first and second pinions to be selected independently of each other. <IMAGE>
Patent GB-2058358-A (GB)
Title: Detecting the rotational speed and/or angular position of a shaft
IPC: G01P3/481
Filed: 1980-08-13
Abstract: The apparatus comprises a shaft disc (S) having segment marker teeth (21 to 32) and an additional tooth (33) or teeth for synchronisation, the or each additional tooth being spaced from the preceding tooth by a lesser or greater arc than from the next following tooth. Marker tooth signals, generated by an electric, inductive or electro-optical sensor (35), are evaluated by one or more first counters and a second counter operated at a higher clock frequency than the or any first counter so that the second counter only fails to reach the count of the or a respective first counter, when the interval between any two successive teeth is less than a predetermined amount whereupon a switch is operated to provide an output indicative of the sensing of the tooth concerned. That tooth can be used to identify the operation of a particular cylinder in an internal combustion engine. <IMAGE>
Patent GB-2057889-A (GB)
Title: Electro-convulsive treatment apparatus
IPC: A61N1/08
Filed: 1980-08-22
Abstract: An apparatus for electro-convulsive treatment has means for supplying pulses of current to output terminals P1, P2. An indicator M3 (Fig. 4) indicates the peak current passed during the treatment, the current being sensed at a resistor R1 also used to sense the peak voltage and charge supplied to the patient, voltage and charge being shown on further indicators M2, M4 (Fig. 4). A digital meter may indicate current and voltage and can be used ratiometrically to indicate patient resistance. A capacitor C2 is first charged and then discharged through the patient via a transistor T3 controlled by a circuit CC (Fig. 2) which gives a predetermined number of high current pulses followed by pulses of lower current. Pulse width rate and current amplitude are independently adjustable for both the high and low current pulses. Commutating transistors T4 to T7 controlled by circuit CM allow choice of various unipolar or biphasic pulse outputs, Figs. 3C to 3F. The charge supplied to the patient may be monitored during only the high current pulses (Fig. 5). Meter M1 across capacitor C2 may be calibrated in terms of charge, so that the charge in its reading indicates charge supplied. By monitoring the voltage on capacitor C2 or the signal of charge meter M4, supply of pulses may be stopped automatically when the patient has received a predetermined charge (Fig. 6). The output circuit may be modified to act as a constant current source for certain levels of patient resistance. Transistor T3 to T7 are controlled via opto- isolators I3 to I7. <IMAGE>
Patent GB-2059524-A (GB)
Title: Means for Providing on a Lathe a Gear Change from a Set High Speed Ratio to a Set Low Speed Ratio
IPC: F16H3/20
Filed: 1980-10-02
Abstract: A pivotable carrier 10 carries gears which can, in one pivot position, provide a higher speed ratio and, in another pivot position, provide a lower speed ratio between the head stock spindle gear (54) of a lathe and the lead screw gear (34) so that the lathe can be changed from a set screw cutting operation to a set turning operation and vice versa by one simple operation. In an intermediate position of the carrier the lead screw can be operated manually when the spindle of the lathe is rotating. Figure 2 shows only one pivot position of carrier 10. in the other pivot position a gear (35) on the same shaft as gear 34 is brought into engagement with a gear (43) mounted on stub 21, which drives gear 54 via a gear (41) mounted on pin 19 and gear 30 (see Figure 3 (not shown)), idler 12 being disengaged from gear 34. <IMAGE>
Patent GB-2062573-A (GB)
Title: Shrink wrapping process and shrink wrapped package
IPC: B65D75/00
Filed: 1980-11-04
Abstract: An article, e.g. a lamb carcass, having a re-entrant, e.g. at the base of the carcass rib cage, is shrinkwrapped by applying a flexible shrinkable sheet material to the article so as to leave an overlap, e.g. a pleat(s) of adjacent portions of the body of the sheet over the re-entrant. The sheet is then shrunk, the amount of overlap and degree of shrinking being sufficient to leave slack film over the re-entrant. Handling of the article is thus facilitated, since it can be gripped in the region of the re-entrant.
Patent GB-2065717-A (GB)
Title: Installation for the liquid surface treatment of tubes
IPC: B05C7/02
Filed: 1980-11-07
Abstract: Tubes, particularly of the type used in the nuclear field, are surface- treated e.g. pickled in an installation consisting of a tube feed, a transport unit, two treatment stations and a collecting tank, the transport unit comprising entry flaps (3), transport rollers (4) and guide ledges (5) for the tubes (2), one treatment station (25) being equipped with twin rollers (18) for guiding the tubes (2), with a collecting tank (9) for treatment medium connected to a hinged funnel (8) and with a take-up unit (6) for the tubes (2) consisting of an elastomeric plug provided with holes in a steel die with a force plunger provided with distributing bores, and the other treatment station (26) being provided with further twin rollers (18) for guiding the tubes (2), with sprinkler lances (10) for treating the inside of the tubes, with sprinkler collars (11) for treating the outer surface of the tubes and with one or more collecting tanks (13) for treatment medium. <IMAGE>
Patent GB-2066641-A (GB)
Title: Low-fat liquid spread and process
IPC: A23D7/01
Filed: 1980-11-17
Abstract: Low-fat, liquid spread, such as a butter - flavored spread, and process for preparing it. The spread preferably comprises and oil-in-water emulsion having: less than 30% of a dispersed fat, a continuous aqueous phase containing an emulsion stabilizer, and an emulsifier system comprising a lipophilic emulsifier and a hydrophilic emulsifier. The product has a wide range of applications due its texture, mouthfeel, and stability. It can be flavored and colored as desired, and provides a rich-tasting product with a caloric density which is preferably about 25 calories per 14 gram serving.
Patent GB-2070754-A (GB)
Title: Gas condensation
IPC: F25J1/02
Filed: 1981-01-20
Abstract: A pressure-liquefiable gas or vapour fed into the interior of a container (1) which may constitute the fuel tank of a power unit for a model aircraft or other working model, is condensed within the container by introducing either a liquid derived from said gas or vapour or a liquid refrigerant from an external source into the interior of a hollow condensing element (6) mounted in the container with its outer surface in contact with said gas or vapour inside the container, and then exhausting the contents of the condensing element to cool the outer surface thereof to a temperature below the condensation temperature of said gas vapour. <IMAGE>
Patent GB-2069845-A (GB)
Title: Artificial limb
IPC: A61F2/80
Filed: 1981-02-23
Abstract: A stump socket (1) for an artificial leg is connected to a hip joint (19) by a support arm (15) fastened to the outer surface of the wall (16) of the socket (1). Adjustment of the position of the hip joint axis (20) in the anterior-posterior direction relative to the socket (1) is conveniently performed by pivoting the support arm (15) about the pivoted connection (25) without having to detach the arm (15) from the socket (1). The alignment of the arm may then be fixed by driving rivets through the holes (26) in the end portion of the arm (15). <IMAGE>
Patent GB-2074547-A (GB)
Title: Engaging drive spigot with spool on roll wind/unwind stands
IPC: B65H19/30
Filed: 1981-04-13
Abstract: A wind/unwind stand comprises a lifting arm (1) provided with a drive spigot (3) for rotating a spool (4) carrying a roll of material (13). A cradle (2) is mounted on the lifting arm (1) at a predetermined distance below the axis of the drive spigot (3) to support the spool (4) while the spigot (3) is drivingly engaged with the spool. The cradle (2) ensures that the spigot assembly (3) may drivingly engage the spool (4) even though the material (13) is unevenly wound on the spool. When the drive spigot (3) is engaged with the spool (4), the cradle (2) may be retracted. <IMAGE>
Patent GB-2075302-A (GB)
Title: Infrared image converter
IPC: H04N5/33
Filed: 1981-04-27
Abstract: A device for providing scan conversion, integration and parallel to serial conversion in one modular element, comprises an array of infrared detectors (12), amplifiers (14, 16, 18) and LEDs (20), with said LEDs coupled by optical fibres (22) to a CCD (24) sensor which provides an output which may be utilized for image reconstruction. A feed back gain channel connected to the output of said sensor serves to provide a reference which controls the steady state (amplitude of all the LEDs thereby stabilizing the LED array. <IMAGE>
Patent GB-2070952-A (GB)
Title: Apparatus of a rotary pulsative type
IPC: B01F27/93
Filed: 1979-09-10
Abstract: An apparatus of a rotary pulsative type intended for dispersing emulsions and/or suspensions and comprising a casing (1), its walls forming a preliminary mixing chamber (2) and a mixing chamber (4) interconnected to each other through a channel (5). The chamber (4) houses a rotor (6) and a stator (7) which are intended to create a variable resistance to the stream of emulsions and/or suspensions during rotation of the rotor (6). The preliminary mixing chamber (2) is shaped as a diffuser broadening in the direction of the channel (5).
Patent GB-2076738-A (GB)
Title: A blade holder
IPC: B23D51/12
Filed: 1981-05-11
Abstract: A blade 10 has one end received in a slot in one arm of a C-shaped frame 4 and the other end received in a slot in a lever 18 pivoted to the other arm of the frame for movement between a loading position and an operative position thereby imparting tension to the blade. The lever has a projection 25 which abuts the other arm in the loading position of the lever. <IMAGE>
Patent GB-2087705-A (GB)
Title: Mower
IPC: A01D34/66
Filed: 1981-11-02
Abstract: A mower comprises two sets of cutting teeth which are movable relative to one another by a driving shaft, the cutting teeth 62 being formed on the edges of coaxially arranged cutter discs 24, 26. The number of cutting teeth 62 preferably differs on each of the cutting discs 24, 26. One or both of the discs is rotatable. <IMAGE>
Patent GB-2111189-A (GB)
Title: Removing grease and moisture from rooms
Inventor: HAMMER JOSEF
IPC: E04B9/02
Filed: 1981-11-27
Abstract: A device (1) for ventilating rooms (2) and for separating grease and moisture from the air is made up of individual ceiling units (4), e.g. to form a suspended ceiling, although a single unit may be used as a grease trap grid. Parallel channel members (5 and 6), more particularly arcuate or groove-shaped, overlap alternately with the open sides of adjacent members facing in opposite directions and leave a passage for air between the edges of the channel members. The cross-section of each of the set of channel members facing in one direction extends over more than a semi-circle, and this may also apply to both sets of channel members; in this way, between the portions of the edges of the individual channel members overlapping with one another, there is formed a chamber (7) which enlarges the cross-section of flow of air and causes grease and moisture to be deposited. The channel members and the chambers (7) are closed off at their ends, at right angles to their longitudinal direction, whilst a passage (10) for any impurities separated off is provided at at least one end wall (8). The units 4 are inclined to the horizontal to facilitate draining off of impurities. <IMAGE>
Patent GB-2092024-A (GB)
Title: Drawable protective coatings for container manufacture
IPC: B65D1/28
Filed: 1981-12-30
Abstract: To protect foodstuffs against contamination in a drawn and ironed two piece can, the inside surface thereof has a protective resin coating (11) on the base metal (13). The coating is applied to a flat metal blank from which the container body is drawn and is baked before drawing at modestly elevated temperatures between approximately 150 and 315 DEG C, for evaporating solvents therefrom and for curing the resin components. The coating composition includes a phenolic resin, an epoxy resin, a polyvinyl chloride/acetate copolymer and a polyvinyl chloride dispersion resin dispersed in a solvent system; solvent impurities which can react with low molecular weight sulfides are excluded. The polyvinyl chloride dispersion resin included in the composition has an intrinsic viscosity of about 1.4.
Patent GB-2100575-A (GB)
Title: Methods of treating fruit and/or vegetables
Inventor: BIBBY COLIN SEATON
IPC: A23B7/154
Filed: 1982-05-27
Abstract: In order to reduce degradation, and particularly discolouration, of fresh or frozen apple pieces powder or crystals of ascorbic acid, preferably mixed with calcium citrate and sugar, is finely distributed over the pieces as they are conveyed by a conveyor 4 below a duster or sprinkler 7 in the direction of the arrow 3. After treatment the apple pieces are placed in a bag together with a quantity of sodium metabisulphate as a preservative which is separated from the pieces by a gas-permeable membrane. Other types of fruit and/or vegetables, such as pears or potatoes, may be similarly treated. <IMAGE>
Patent GB-2103758-A (GB)
Title: Clutch disk assembly with rotational damping construction including heat dissipating metal plate
Inventor: ISHIDA NOBUYASU
IPC: F16D13/64
Filed: 1982-06-30
Abstract: A clutch disk assembly includes a hub 1 with an intermediate integrally formed flange 2. A plastic bush 13 with radially larger and radially smaller portions is fitted rotatably over one end of the hub, with its radially larger portion towards the flange. A main clutch disk plate 3 is fitted over the radially smaller portion of the bush, abutting against the radially larger portion. An auxiliary clutch disk plate 4 is fitted over the other end of the hub, and is fixed both in the axial and radial directions to the main plate. The combination of these plates is coupled to the flange with a certain amount of sprung rotational play being available therebetween, and is also biased in the axial direction which presses the main plate and the bush toward the flange. A means is provided frictionally to damp rotational movement between the combination of the plates and the flange. A plastic friction ring 14 is provided between the radially larger portion of the bush and the flange with a metallic intermediate ring 15 being provided between the radially larger portion of the bush and the plastic friction ring. <IMAGE>
Patent GB-2108113-A (GB)
Title: Antibacterial agents LL- C23024 beta and iota and microorganism actinomadura yumaense NRRL 12515
Inventor: LABEDA DAVID PAUL
IPC: A61K31/70
Filed: 1982-09-06
Abstract: Antibacterial and anti-coccidial agents (polyether antibiotics) designated LL-C23024 alpha , LL-C23024 beta  and LL-C23024 iota, a novel microorganism Actinomadura yumaense sp. nov. and mutants thereof, and a novel process for the preparation of the same.