baber/WOPTO huggingface dataset:
Patent GB-2018039-A (GB)
Title: Regulating transformers
IPC: H01F29/02
Filed: 1979-03-29
Abstract: A regulating transformer for electrical toy and model railways comprises a tapped transformer secondary winding 2, an arrangement of rectifiers 31, 32, 33, 34, 36, 37, and a switching arrangement for effecting various connections between the taps 21 ... 28 and the rectifier terminals so that the voltage may be varied on-load. For example, with terminal E connected to tapping 21 and both terminals B and D connected to tapping 28 a bridge circuit providing maximum rectified output is obtained. With other connections half- wave outputs and mixed-wave outputs (i.e. alternate half-cycles of different amplitude) are obtained. Constructional details of a rotary switch for effecting sequential changes of connections are disclosed (Figs. 9 and 10 not shown). The switch includes a printed circuit plate. <IMAGE>
Patent GB-2018361-A (GB)
Title: Improvements in spring- loaded brake actuators
IPC: B60T17/08
Filed: 1979-04-05
Abstract: A spring applied brake actuator has a piston 22 loaded by a spring 23 located in a breather chamber 24, the chamber 24 being vented to the atmosphere by way of a conduit 28' and a filter (36) in order to protect the breather chamber from dirt, dust and spray water. The conduit 28' remote from the chamber 24 fits into a bore (33) in a support flange 2' of the actuator and retains the filter (36) in the bore (33). <IMAGE>
Patent GB-2023940-A (GB)
Title: Directional arrays
IPC: H01Q3/40
Filed: 1979-06-04
Abstract: A beam steering or scanning system comprising a plurality of sub-arrays 1,2,3 of radiating elements 4 each sub- array of which is connected to a controllable array signal distribution means which is itself a plurality of phase shifters 11,12,13 and/or timing delays or sequences appropriately weighted, hereinafter referred to as the array beam former, the spatial directional beams being generated and scanned by controlling the array beam former whilst contemporaneously controlling a sub-array beam forming system 5,6,7,8,9,10 forming part of the beam steering system so as to modify the sub-array factors as well as the array factor whereby a resultant beam configuration is produced in which grating lobes are obviated or at least significantly suppressed by being made coincident with nulls of the sub-array factors. <IMAGE>
Patent GB-2051418-A (GB)
Title: Control of tool movement
IPC: B23K9/127
Filed: 1979-06-14
Abstract: A device for controlling automatically the movement of a tool head during a working pass e.g. of a welding electrode along a seam to be welded includes an infra-red height sensor unit and an infra-red line follower unit both contained within a sensor housing. Deviation of the welding head from the weld seam or from a predetermined height above it causes a feedback signal to be generated which corrects the deviation. The infra-red radiation source may be pulsed at a predetermined frequency.
Patent GB-2030266-A (GB)
Title: Spring leaf for laminated spring
IPC: F16F1/18
Filed: 1979-06-26
Abstract: A spring leaf for use in a laminated spring is made from an elongate closed hollow profile. The profile may have one or two axes of symmetry and may be seamless or welded. Opposed sides (3, 4) serving in use as tension and compression sides are relatively formed and spaced in a variety of ways so as to provide constant flexural strength along the leaf. Such spring leaves can be variously combined in the laminated spring. <IMAGE>
Patent GB-2056188-A (GB)
Title: An improved socket contact
IPC: H01R13/11
Filed: 1979-08-07
Abstract: A bifurcated socket contact of one piece construction comprises a pair of flat, elongate limbs which are transversely spaced to define between them a slot open at one end in which a blade contact may be resiliently gripped. Preferably the bifurcated socket contact includes, integral with the blank from which it is formed, means for effecting a snap-fit in an insulating housing for the bifurcated socket contact and means for effecting an electrical connection to a flexible electric conductor. Fig. 3 illustrates two such contacts integral with and longitudinally spaced along a carrier strip of metal from which the blanks may be stamped. <IMAGE>
Patent GB-2037580-A (GB)
Title: Inflatable pool or tank or play article
IPC: E04H4/00
Filed: 1979-08-28
Abstract: An inflatable pool or tank 1 has a base 2 with at least a flexible perimeter portion, and an inflatable perimeter wall 7 attached to the flexible base portion such that, in use, the height of the perimeter wall is determined by the volume of liquid within the pool or tank, making the pool adaptable for various sizes of children who may readily sit on the wall. For use as a play article, the base is also inflatable so as to provide an article which doubles, when not used as a pool, as a bouncing toy. Large scale pools may be employed as swimming pools or water purification tanks. <IMAGE>
Patent GB-2034005-A (GB)
Title: Fluid Pressure Repsonsive Control Devices
IPC: B60T17/18
Filed: 1979-08-30
Abstract: A fluid pressure responsive control device for governing the operation of a compressor or a compressor unloader has a spring-biased valve device (29, 34) controlling connection of an output port (23) to an input port (22) or to atmosphere according to the value of a controlling reservoir pressure at the input port, the valve arrangement being positively held in the former condition by virtue of an increase of effective area exposed to the controlling pressure and the valve arrangement being provided with a seal (48) which is sealingly slidable in a tubular opening (49) so as to be able to execute movement due to pressure changes within a particular range without opening the vent to atmosphere. <IMAGE>
Patent GB-2032858-A (GB)
Title: The Retreading or Repairing of Pneumatic Tyres for Vehicle Wheels
IPC: B29C35/00
Filed: 1979-10-03
Abstract: A device for applying a flexible casing in a pressure-tight manner against the bead of a pneumatic tyre which is to be retreaded or repaired, consists of an elastic ring (1) which is manually deformable in the radial and axial directions and has an outer periphery which forms a cylindrical or frusto-conical shaped bearing surface (11) terminating in at least one circumferential rim forming an axial abutment (12). There can be two rims if required and the inner rim can, if provided, have an interruption in its circumferential direction to assist in the eventual removal of the device from a tyre bead. Also, the ring can have reinforcement, e.g. in the form of a ply or plies of cords. For the ring may have an annular inflation cavity with a metal collar on the radially inner side of the ring. <IMAGE>
Patent GB-2034826-A (GB)
Title: Hydraulic pump-turbine plant
IPC: F03B1/00
Filed: 1979-11-06
Abstract: The plant comprises a Pelton turbine and a double stage pump having wheels (3, 4, 5) mounted on a common shaft (2) for rotation in the same direction during turbine or pump operation. The pump diffuser is connected by pipes (12) to the turbine distributor (8). <IMAGE>
Patent GB-2035552-A (GB)
Title: Radiation detection of gas compositions
IPC: F23N5/00
Filed: 1979-11-23
Abstract: The invention provides an infra red source 8 to one side of, e.g., a gas flue; a detector 4 spaced from the infra red source across the gas flow; and a band-pass filter and a filter cell 6, filled with a gas component of interest, both positioned in a radiation path between the detector 4 and the source 8; the detector 4 being connected in a circuit capable of measuring 14-18 radiation both direct from the source 8 and passing through the gas component filter 6, determining 19 the difference between the two levels of radiation, and dividing 20 that difference by either the measured direct radiation or the measured radiation passing through the filter cell 6, to provide 21 an output from the circuit representing the amount of monitored gas present in the gas flow. The output can be used to activate audible or visual signal means, or as a control signal to modify the conditions, e.g., at the burner of a boiler. <IMAGE>
Patent GB-2040587-A (GB)
Title: Improvements in or relating to circuit arrangements for detecting sighting errors in aerials for a telecommunication systems
IPC: H01Q3/00
Filed: 1979-11-27
Abstract: A circuit arrangement is provided for detecting sighting errors in an aerial for a telecommunication system such as an earth-satellite system. First and second differential phase shifters DP1, DP2 are in series in a wave guide G, G1 between an aerial horn H and a receiving apparatus and each produces a differential delay of 90 DEG  between orthogonally polarised fields. OMT extracts modes polarized in two directions at right angles to each other. Coupling means AD withdraws from the wave guide G two higher energized modes from aerial signal, and OMT1 injects the higher modes into a further wave guide G2 according to two orthogonal planes. G2 is connected via a third differential phase shifter DP, which causes a differential delay of 180 DEG , to OMT2 which extracts modes polarized according to two directions at right angles to each other and rotated through 45 DEG with respect to those of OMT1. Each output of OMT2 is connected to a coherent detector of the receiving apparatus to which one of the output signals of OMT is sent as a reference signal. The sighting error signals are used for control of the aerial orientation. <IMAGE>
Patent GB-2065157-A (GB)
Title: Method of Producing Cement Colouring Composition
IPC: C09C3/04
Filed: 1979-12-17
Abstract: A thixotropic slurry is made by first mixing a dispersant (preferably 0.1 to 3%, based on the weight of slurry), a stabilizer (preferably 0.4 to 15%), and an aqueous carrier (preferably 12 to 77%), then mixing in a solid particulate pigment (preferably 20 to 70%) until the resulting mixture is uniform, and finally subjecting the mixture to high energy processing, e.g. milling, to reduce the pigment particles to a micron size range, preferably 0.5 to 40 microns.
Patent GB-798379-A (GB)
Abstract: 798,379. Ignition systems. WIPAC DEVELOPMENT, Ltd. April 19, 1956 [April 30, 1955], No. 12578/55. Class 7(4) [Also in Group XXXV] An electrical system for use in a motor vehicle comprises a coil ignition circuit including an alternator having a plurality of windings, or a single winding with at least one tapping and a second circuit containing ancilliary electrical equipment of the vehicle, the system including a switch operable to connect at least one. of the plurality of. windings, or at least one part of the single winding, alternatively into the ignition circuit or into the second circuit. As shown alternator windings 12, 13 may be switched (switch 17) to supply the ignition coil 14 or the battery 44 and lighting circuit through the bridge rectifier 39. In a modification the battery and rectifier are omitted. The alternator rotor is driven by the crank shaft of a motor cycle. The switch may be coupled to the starter.
Patent GB-2054071-A (GB)
Title: Brake pad provided with wear warning
IPC: F16D66/02
Filed: 1980-01-31
Abstract: A brake pad of a disc or drum brake comprises a supporting plate (1), a layer of friction material (2) and an electrical contact assembly (6) which extends through supporting plate (1) to project beyond the interface between plate (1) and friction material (2) and which comprises two terminal portions (18, 19) electrically insulated from each other by material (22) and a connecting portion (20) which electrically connects the terminal portions and is located wholly beyond the interface. Assembly (6) may be positioned alongside material (2), or so that portion (20) lies wholly within the material (2). The connecting portion is arranged to be abraded after prolonged abrasion of the friction material by contact with a braking surface whereby electrical contact between the terminal portions is broken. The contact assembly is connected into a warning circuit which produces a first warning signal when the layer of friction material has become abraded sufficiently to allow electrical contact between the connecting portion and the braking surface, and a second warning signal when the connecting portion hs become sufficiently abraded to break the electrical connection between the terminal portions of the contact assembly. See Figures 4, 5 for details. <IMAGE>
Patent GB-2073994-A (GB)
Title: Improvements in and relating to electrical mixers
IPC: H04H60/04
Filed: 1980-02-23
Abstract: An electronic mixer especially for electrical audio signals comprising a plurality of inputs (I1 to I4), a plurality of outputs (O1 to O4), a common busbar (10) through which signals can be transferred selectively from any one or more inputs to any one output, a first circuit means (12) which preferably includes shift registers (58, 60, 62, 64) stepped by timing signals from a clock (66) to deliver binary control signals controlling the switching of the inputs in timed relationship to a continuous switching sequence of the outputs effected by a second circuit means (14) which preferably includes gate circuits (82) controlled by a ring of latch means (88, 90) actuated by pairs of timing signals derived from the stepping signals for the shift registers. <IMAGE>
Patent GB-2072786-A (GB)
Title: Improvements in and relating to the guarding of paper-making machines
IPC: B65H19/00
Filed: 1981-03-28
Abstract: The periphery of a paper roll 20 is sensed and a guard member 26 therefor is moved in response to the sensing to cause the guard member 26 to seek a specific distance from the paper roll 20, the guard member 26 being moved to approach the paper roll 20 if the sensed distance between the guard member 26 and the roll 20 periphery exceeds the specific distance by more than a predetermined amount, and being moved away from the roll 20 if the sensed distance between the guard member 26 and the roll 20 periphery falls below said specific distance by more than a predetermined amount, whereby the guard member 26 can be maintained a specific distance from and in safe proximity to the roll periphery 20, but without obstructing operations that may need to be carried out on the roll 20 during formation thereof. <IMAGE>
Patent GB-2039914-A (GB)
Title: Aqueous dispersion coating composition and application to moulded articles
IPC: C08J7/04
Filed: 1979-07-23
Abstract: Aqueous dispersion coating composition consisting essentially of an epoxy powder paint an water carrier wherein the water carrier has dissolved therein a water soluble nonionic surfactant in amount ranging from about 0.01 to about 10% by weight (PBW) of the dry epoxy material and a dispersion agent in an amount from about 0.01 to 10 PBW of the dry epoxy material, wherein the pigment volume concentration of the coating composition is at least 10. Also described is a method of coating formed fiber reinforced plastics, such as sheet molding compound.
Patent GB-2052084-A (GB)
Title: Process for Preparing Photosensitive Lithographic Printing Plate Precursor
IPC: G03F7/095
Filed: 1980-06-11
Abstract: A known type of precursor of a lithographic printing plate consists of (a) a support having a hydrophilic surface (e.g. paper or grained aluminium), on which is coated (b) an ultraviolet-light-sensitive non-silver layer, e.g. containing a diazo compound or a photopolymer, and (c) a silver halide photographic emulsion layer, usually with gelatin as binder. To give good bonding of layers (b) and (c), after the coating of the layer (b) and before that layer has set, it is according to the invention, dried with hot air at 60 DEG  to 150 DEG C (preferably first 60 DEG to 100 DEG C to increase the viscosity and then at 70 DEG  to 150 DEG C to give gradual drying). The emulsion layer may contain dispersed particles, of size 0.01 to 10 microns, of a substantially water- insoluble oily or waxy compound, e.g. an adipate or a polyester, or resin, e.g. of one of three general formulae. The precursor is imagewise exposed and developed to give an image in the silver halide emulsion and then ultraviolet exposed and the non-image non-silver photosensitive layer is washed away; a printing plate with hydrophilic printing areas is produced, from which up to 110,000 prints can be made.
Patent GB-2056922-A (GB)
Title: Plural purpose fittings for boats
IPC: B63B29/02
Filed: 1980-07-10
Abstract: A boat has a well (6) in which a liner (9) may be fitted to provide an open cockpit. The liner (9) may be inverted and refitted to the well to provide an auxiliary cabin as shown in the Figure. <IMAGE>
Patent GB-2055077-A (GB)
Title: Bicycle crank assembly
IPC: B62M3/04
Filed: 1980-07-22
Abstract: A bicycle crank assembly has a pedal crank arm (1) at the end of which a disc (5a) or ring is freely rotatably mounted, e.g. by a ball or needle bearing, on an axis (5) parallel to the crank axis (2). A pedal (7) is mounted on the disc or ring on an axis (6) spaced from and parallel to the axis (5). The path of the pedal axis (b) is thus centred ahead of the crank axis (2) during rotation of the crank arm increasing the pedal leverage during the driving part of the path. The disc or ring can be replaced by an arm pivoted to the crank arm at one end and carrying the pedal at its other end. <IMAGE>
Patent GB-2054337-A (GB)
Title: Handling animals
IPC: A01K15/00
Filed: 1980-07-23
Abstract: A machine is disclosed which is arranged to enable the transfer of a sheep from a standing position in a pen into a cradle where the sheep lies on its back. A platform 4 pivotable about longitudinal axis 5 is held horizontal by over centre lock bar 15 released by a breaker 18 attached to a link 9 connected to a treadle 11 and to an animal engaging wall 7. Operation of the treadle moves wall 7 to urge the sheep against a hinged roll plate 20 and releases the lock bar whereby the platform 4 tilts and the sheep falls onto roll plate 20 and hinged ramp 24. The sheep's weight causes the ramp to fall further to tip the sheep into cradle 28. A spring 13 returns platform 4 to its horizontal position.   <IMAGE>
Patent GB-2060528-A (GB)
Title: Articulated Support for Motor Vehicle Sunshields and its Method of Manufacture
IPC: B60J3/02
Filed: 1980-08-15
Abstract: A support member for motor vehicle sunshield is described comprising a polymer base (10) connectable to the vehicle body, and a sunshield support arm (20) driven into a corresponding seat (14) in the base (10) such that it can only rotate therein, the arm (20) being provided with a groove (22) which, during the driving stage, is filled with the base material which is softened by the action of an ultrasonic driving tool and which after cooling forms an axial retention collar. <IMAGE>
Patent GB-2057214-A (GB)
Title: Tuning system
IPC: H03J7/26
Filed: 1980-08-19
Abstract: A tuning system for a television receiver includes a phase locked loop (PLL) (5, 19, 21, 23, 25, 27, 29) and an automatic fine tuning (AFT) means (41) which are selectively enabled to operate to tune the receiver to nonstandard as well as standard radio frequency (RF) carriers which may be provided by cable and master antenna systems. After the selection of a new channel (CHANGE), the operations of the PLL and AFT configurations are sequentially enabled by a mode selection means (43). A first counter means (19, 21) causes said PLL means to tune an RF carrier associated with a selected channel. Signal processing means (11) are responsive to the RF carrier for producing an information response and second counter means (53, 59) are responsive to the sequential enabling of said PLL and AFT means a predetermined number of times to inhibit said information response. A channel selection means (35) may step the tuner to the next channel, or in another embodiment the receiver may be switched off. <IMAGE>
Patent GB-2059594-A (GB)
Title: Piezoelectric transducer for producing a signal depending on the tensile force of a textile thread
IPC: G01L5/108
Filed: 1980-08-20
Abstract: A piezoelectric element (23) forms at least a part of a resilient vibrator (22) which is firmly gripped at one end at a clamping point (20) and is stressed by the tensile force of the thread at the other end, and which is prestressed substantially parallel to the stressing direction through a bearing surface (26) acting at a point between its ends (21, 24) and rigidly connected to the clamping point. As a result, the piezoelectric element detects vibrations which are transmitted to the vibrator from its clamping point far less than vibrations which are transmitted to the vibrator through its free end by the tensile force of the thread. The transducer is therefore particularly suitable for installation in or on thread-processing textile machines. Its signal indicates not only the presence but also - with a moving thread - the travel of the thread (F), particularly when this is withdrawn overhead from a bobbin. <IMAGE>
Patent GB-2066398-A (GB)
Title: Controlling acceleration and deceleration of rail vehicles
IPC: G01P15/08
Filed: 1980-12-22
Abstract: A mercury tube inertial switch is provided with additional electrodes positioned serially along the tube in each direction from a common electrode. This switch is mounted on a train so that the mercury moves in one direction upon deceleration and the other direction with acceleration to sequentially contact the corresponding electrodes. Control relays associated with each set of electrodes are selectively energised as the mercury moves along the tube in accordance with the level of deceleration. Brake control relays which register the deceleration movement of the mercury selectively apply, hold, or release normal train braking action to maintain the deceleration within predetermined passenger comfort limits. An initial brake assurance register relay may only inhibit emergency braking when a selected minimum deceleration level, which indicates sufficient regular braking to stop the train within a required safety distance, is detected. Propulsion control relays associated with the other direction of mercury movement selectively control the application of full and reduced power levels and a power-off condition to maintain the train acceleration level within similar comfort limits. <IMAGE>
Patent GB-2067175-A (GB)
Title: Process for synthesizing ammonia from hydrocarbons
IPC: C01C1/04
Filed: 1981-01-07
Abstract: A process for synthesizing ammonia, comprising generating the synthesis gas from hydrocarbons (1) by primary reforming (5) of the hydrocarbons with steam (3) and by secondary reforming (15) of the resulting gaseous mixture (16) with air (12), subjecting a part (6) of the starting hydrocarbon mixed with the steam to a tertiary reforming (7) in which the necessary heat is provided by the reaction gaseous mixture (17) leaving the secondary reforming, causing the ammonia synthesis (37) to occur at low pressure with drying (38) of the gas conveyed to the synthesis reactor by employing molecular sieves (36, 39), causing the ammonia contained in the reacted gas to be absorbed (34) by water, and subjecting the ammonia solution so obtained to distillation by means of two distillation columns (52, 53) operating at different pressures. <IMAGE>
Patent GB-2067955-A (GB)
Title: Apparatus for and a method of cleaving laminated material
IPC: B28D1/32
Filed: 1981-01-14
Abstract: The apparatus comprises two gripper members (11 & 12) relatively movable towards and away from each other by power operated means (14) such that with a plate of laminated material disposed between the gripper members, the latter can be moved towards each other to grip opposing faces of the plate and then can be moved away from each other to apply a splitting strain. A trigger cut at an edge of a desired cleavage plane is formed in the plate by a blade (A) operated by further power operated means (19). There is also a self centering device (30, 31, 34, 35, 36) for positioning the blade midway or substantially midway between the gripper members prior to the blade forming said trigger cut. A housing encloses the plate during cleaving to prevent dust particles causing injury to the operator. <IMAGE>