baber/WOPTO huggingface dataset:
Patent GB-2142790-A (GB)
Title: Internal combustion engine starter motor control circuit
Inventor: MARTIN HERBERT
IPC: F02N11/08
Filed: 1984-05-24
Abstract: The circuit avoids incorrect control of the starter motor 9 as a result of disturbances on the signal line 17 between a control section 2 and an engine speed signal transmitter 13 and also reduces power losses of the control section 2 during the working phase of the internal combustion engine 12. Starting is initiated by operation of a switch 3 which controls supply of power to section 2 and sets a memory 18 to a state causing engine starting by motor 9. When a threshold switch 7 senses that the self- sustaining speed of the engine 12 has been attained the state of memory 18 is charged so that logic unit 8 shuts down the starter motor 9. The use of the memory 18 prevents any subsequent unintended operation of the starter motor due to faults on the signal line 17. In an alternative arrangement (Fig. 2), the threshold switch operates an interlock switch (6) causing interruption of the supply of power to switch 7 and logic unit 8 and thus shut down of the motor 9, a further starting operation being possible only after switch 3 has been opened to interrupt supply of current to control section 2. The switch (6) may be a relay with a self-latching circuit, a thyristor, or a transistor with a thyristor characteristic. <IMAGE>
Patent GB-2147750-A (GB)
Title: Lamp starting circuits
Inventor: PIASKOWSKI ANDREW DIONIZY
IPC: H05B41/04
Filed: 1984-09-12
Abstract: A starting circuit for a fluorescent lamp 4 comprises a triac 12 which is connected to allow energisation of the lamp filaments 3, 6 in series from a.c. supply 8, 9. An inductor 10 is connected in series with the triac, and a commutating capacitor 13 is connected across the triac and part of the inductor. High-frequency gating pulses for the triac are provided by a pulse generator 16. The frequency of the gating pulses increases, during each supply half cycle, over an initial frequency range in which commutation of the triac can be effected by the capacitor 13 during each time interval between successive gating pulses, and up to a frequency at which commutation between successive pulses cannot be effected, so that the triac latches on for the remainder of the supply half cycle. Filament current therefore flows for a portion of each half cycle, and each filament is gradually heated. Each commutation cycle of the triac causes a high voltage pulse to be induced in the inductor 10, and when the filaments are adequately heated one of the pulses will cause the lamp to fire. If the lamp becomes faulty, so that it does not fire in a succession of supply half-cycles, a thermistor 11, which carries the filament current, gradually heats up and its resistance increases considerably. This lowers a charging voltage of the gating pulse circuit so that generation of the gating pulses ceases until the thermistor cools down. In an alternative arrangement (Figure 10), the thermistor 11 is replaced by a short length of resistance wire (30) acting to heat a thermistor (29) replacing the resistor 20 in the pulse generator 16 of Figure 1; this gives a higher lamp firing voltage and allows use of a lower power thermistor. Thermistor (29) may tubular with the wire (30) passing through the bore. <IMAGE>
Patent GB-2167368-A (GB)
Title: Conveyors
Inventor: PHILIP DAVID EDWARD
IPC: B65G13/12
Filed: 1984-10-26
Abstract: Roller conveyor having load bearing rollers or the like (30,31) journalled in a frame whose longitudinal members (10,11) are extendible, e.g. scissors type linkages, enabling the operative length of the conveyor to be selectively varied and also enabling it to be arranged in a curved path by differential extension or contraction of the members is provided with power drive means whereby some or all of the rollers in a series along the conveyor are rotated by means of a driving band or bands (43, 45, 47 etc) interconnecting the driven rolls by way of intermediate pulleys or the like (46) journalled on or near the pivot axes of the components (12,13) forming the linkages. <IMAGE>
Patent GB-2160284-A (GB)
Title: Servo power boosting apparatus
Inventor: REINARTZ HANS-DIETER
IPC: F16D48/02
Filed: 1985-06-05
Abstract: A servo power boosting apparatus for a clutch is furnished with a travel generating element (11) and with a servo control valve (12) linked to a pressure source (13) and to a reservoir. The servo control valve controls the pressure supplied by the pressure source (13) to a slave piston-and-cylinder arrangement (15) according to the travel accomplished by the travel generating element (11). The servo control valve comprises a stepped-piston slide element (17) which is slidably accommodated in a stepped cylinder (18) dimensioned accordingly. The controlled pressure depends on the position of the stepped-piston slide element (17) within the cylinder (18), movement of the piston element (17) causing opening and closing respectively of two ball valves (20) and (21). A hydraulic circuit is disclosed employing a second stepped piston and stepped cylinder having the same size ratio as the element (17) for controlling and limiting the stroke of the clutch pedal (11). <IMAGE>
Patent GB-2165902-A (GB)
Title: Caliper-type disc brake
Inventor: AFANADOR CARLOS PHILLIP
IPC: F16D65/18
Filed: 1985-09-18
Abstract: The brake is provided with an annular sheet metal disc 40 carried on the open face of a piston cup 25 to provide a thermal barrier for the piston cup 25 and for an adjacent dust boot 28. The disc 40 has an annular portion 44 offset from the forwardmost face of the cup 25 to define a space 45 and extending adjacent the forwardmost exposed portion of boot 28 to shield boot 28 from heat and abrasion. Disc 40, preferably of stainless or galvanised sheet steel, is capable of transmitting braking force between cup 25 and backing plate 15. Disc may be open in its centre or closed - it may have portions grippingly engaging piston cup or may be cemented or bonded thereto. In Fig. 1 disc 40 has tabs frictionally fitting on inside surface of cup: Figs. 4, 5 illustrate other attachments. Disc may be coined or embossed to limit extent to which it is in contact with cup or backing plate. <IMAGE>
Patent GB-2182636-A (GB)
Title: Promotional pack
Inventor: WILLIAMS JOHN
IPC: B65D33/00
Filed: 1985-09-18
Abstract: A promotional pack comprises a container 10 having a mouth 12 for accepting retail items in a packing orientation, and having windows 14 corresponding to individual items in the container in the packing orientation. A removable label 18 is taken off the container at the time of sale to serve as a record of the sale. <IMAGE>
Patent GB-2165560-A (GB)
Title: Tufted patterned carpet
Inventor: DEWHIRST GEOFFREY WILSON
IPC: D05C15/36
Filed: 1985-10-11
Abstract: A machine for producing tufted carpet comprising a first plurality of needles selected needles of which can be controlled to produce long loops and a second plurality of needles, selected needles of which can be controlled to produce cut tufts. Unselected needles in both pluralities provide short loops. Thus carpet can be produced which has a pile of long loops, of cut tufts or having selected areas of long loop pile with other areas of cut tuft pile. The pile formation can be controlled so that its density is substantially uniform. <IMAGE>
Patent GB-2188083-A (GB)
Title: Ladder attachments
Inventor: SHEIKH IBRAR HUSSAIN
IPC: E06C7/44
Filed: 1986-03-22
Abstract: The ladder has a pair of shoes (16, 18), each shoe (16, 18) being slidably coupled to the foot of a corresponding stile (2,4). A nut and bolt assembly (26) locks each shoe (16, 18) to its foot in a plurality of different positions to extend the length of each foot by different amounts. Pivotal support pads (8, 20) are provided at the upper ends of the stiles (2, 4). <IMAGE>
Patent GB-2176054-A (GB)
Title: Preparation of amorphous silicon semiconductors
Inventor: THWAITES MICHAEL JOHN
IPC: H01L21/205
Filed: 1986-05-29
Abstract: A film of hydrogenated amorphous silicon is made by thermally decomposing a monosilane at elevated temperature in the presence of a substrate and depositing a layer of amorphous silicon which contains hydrogen on the substrate.
Patent GB-2178222-A (GB)
Title: Dismountable gas-tight and liquid-tight terminal bushing for a voltaic cell or battery
Inventor: KLINK DIPL ING RAINER
IPC: H01M50/176
Filed: 1986-06-11
Abstract: A gas-tight and liquid-tight terminal bushing is described. The sealing effect is achieved by means of a toroidal sealing ring (O-ring) 5 which is pressed into the annular space formed by a necking 3 of the cell housing and the lead-through terminal bolt 10. The necking 3 is supported by a washer 6 made of insulating material, with an annular elevation surrounding the necking positively on the outside, the washer at the same time ensuring that the terminal bolt 10 is centred. On the other side of the cell wall, there is, again, a washer made of insulating material, which for further centering is provided with a sleeve-shaped projection which penetrates into the annular space formed by the necking and the bolt and which is supported on the bolt and on the necking. <IMAGE>
Patent GB-2192692-A (GB)
Title: Bi-directional flow control device
Inventor: ABEL IAN CHARLES
IPC: F16K17/26
Filed: 1986-07-02
Abstract: A Bi-Directional Flow control device consists of moveable portions 2A & 2B held in a particular position by a spring 3 within a housing forming part of a pressurised flow path, such that normal rates of flow of a gas or liquid, are achieved with little impediment in either direction. Should a rupture occur elsewhere in the flow path resulting in a hazardous loss of a substance, the resulting excess flow in either direction is sensed by the device 1, which then closes to prevent further loss thus minimising the hazard. This unit can be incorporated into any assembly, the hose fitting being a particular example. By operating when a predetermined excess flow occurs in any direction the unit cannot be fitted the wrong way round and by being an integral part of a hose assembly for example, cannot be omitted at any time, thus protecting personnel and equipment against component failures and human error. In a modification, flow in either direction is controlled by a single closure member 2 held between opposing seats by springs 3A, 3B. <IMAGE>
Patent GB-2179510-A (GB)
Title: A starting and dimming circuit for a fluorescent tube
Inventor: HOFMANN GEORG
IPC: H05B41/392
Filed: 1986-07-24
Abstract: A fluorescent tube 3 is energised from a direct voltage via a control circuit 2 connected in series with the fluorescent tube 3. The voltage drop across a current measuring resistor 4 controls the circuit 2, which in the no voltage state of the measuring resistor 4 generates high amplitude, short duration ignition voltage pulses. After ignition, the duty cycle of a switching transistor 5 is controlled by a circuit 7 having inputs from the measuring resistor 4 and from a brightness setting resistor 8. The polarity of the supply to the tube 3 may be reversed at intervals of a few minutes by an electronic circuit in order to compensate for the effects of ion migration arising when the tube is operated on unidirectional current. <IMAGE>
Patent GB-2200541-A (GB)
Title: Lamp for children's cots
Inventor: STOTER STEPHEN
IPC: A47D7/00
Filed: 1987-01-27
Abstract: A child's cot 10 is provided with a battery powered lamp 20 which provides illumination to the interior of the cot. The lamp 20 is mounted in an aperture 22 in an end wall 12 of the cot and is provided with a transparent or translucent cover 24 which is flush with the surface 26 of the end wall which faces towards the interior of the cot. In other embodiments the lamp is detachably mounted on the cot by clamp, suction, hook or magnetic means. <IMAGE>
Patent GB-2203097-A (GB)
Title: Personal organiser
Inventor: SHEPHEARD-WALWYN CHRISTOPHER
IPC: B42F13/00
Filed: 1987-04-07
Abstract: A personal organiser comprising a file having a cover, a loose-leaf binder and replaceable leaves, characterised in that at least a part of the cover is in the form of an openable water-proof container. The container comprises two shells (10, 11) joined by a hinge (14), rim (15) of shell (10) engaging region (16) of shell (11) to form a ring seal. A locking mechanism is provided in the form of projections (27) on shell (11) which engage in recesses (28) of shell (10), each projection including a bore which aligns with a bore (30) in the closed condition of the container so as to receive a locking key e.g. a writing implement. <IMAGE>
Patent GB-2208134-A (GB)
Title: Plastics lighting ducting
Inventor: WEBB RONALD RICHARD
IPC: F21V7/00
Filed: 1987-07-01
Abstract: A pre-fabricated modular elongate lighting ducting comprising: an outer plastics cover sleeve (12); a backing strip (10) releasably secured to said cover (12) along opposed peripheral side edges (14,15); an elongate light tube, duct or conduit (11) being defined between the cover and backing strip, to receive an inner lamp fitting; the cover (12) being resiliently deformable and the backing strip (10) being fabricated of relatively rigid or semi-rigid material, with its peripheral longitudinal side edges (17,18) being turned over to define marginal edge slots in which the corresponding cover (12) edges (14,15) are receivable by resilient deformation of the body of the cover (12) as a whole; whereby successive lengths of said ducting may be arranged end-to-end to form a continuous indefinite combined length through which can be threaded a continuous lamp unit, for example of a succession of multiple individual lamp units, conveniently wired in parallel. <IMAGE>
Patent GB-2206478-A (GB)
Title: Cleaning head
Inventor: BRAZIER ALAN JOHN
IPC: A47L/
Filed: 1987-07-10
Abstract: A cleaning head adapted for use on hard surfaces comprises a body (10) formed as two back-to-back housings (20) and (30) which are swivellably mounted on a suction tube (40). Housing (20) contains a liquid applicator assembly (21) which comprises a body (22) of porous material with a facing layer of pile fabric (23). A cleaning liquid is delivered through ducts (46) and (48) to the body 22 so as to spread uniformly across the pile fabric (23). A suction slot (29) adjacent to the applicator assembly (21) may be provided to pick up dry dirt. The housing (30) includes a liquid pick-up assembly (31) comprising a slot (32) between a pair of flexible blades (33a,33b).
Patent GB-2196337-A (GB)
Title: Enzymatic hydrolysis of beef tallow
Inventor: TAVSS EDWARD ALBERT
IPC: C11D13/00
Filed: 1987-09-16
Abstract: An enzymatic process of hydrolyzing fats, particularly high melting fats such as high melting beef tallow, with a non-stereospecific animal or vegetable lipase, particularly the castor bean lipase, in the presence of about 10-25% by weight of a vegetable oil, such as coconut oil, as emulsifying agent, at an acidic pH of about 4-5.5 and at a temperature not to exceed 50 DEG C; and recovering a high yield of fatty acids which may be neutralized with an alkaline material to form a soap. Castor bean lipase is obtained by macerating dehulled castor beans in water, centrifuging the mixture to form a fat layer and an aqueous layer, separating the fat layer and extracting with petroleum ether and saturated sodium chloride solution, and recovering the lipase from the sodium chloride solution.
Patent GB-2220353-A (GB)
Title: Lower leg walker
Inventor: YOUNG DAVID ERNEST
IPC: A61F5/01
Filed: 1988-06-13
Abstract: A lower leg walker has a foot piece covered by a moulding which retains a shock attenuating insole of laminated construction. Side pieces have mounted on their inner aspects, shaped resilient malleolar pads and a shaped resilient calcaneal pad is attached to the rear of the foot piece. These shaped resilient pads together with straps, co-operate to form a support structure for the hindfoot and ankle and prevent heel-lift during walking. The foot is enclosed is an easily opened and closed bootee made of brushed nylon faced foam and is secured by straps made of pile material with two short pieces of hook material sewn one either side of one end. This arrangement enables the straps to be secured to a strap mount and by employing another strap mount as a slip ring they may be re-attached to themselves. <IMAGE>
Patent GB-2220289-A (GB)
Title: Picture processing apparatus
Inventor: BARNARD MICHAEL EDWIN
IPC: G06T1/20
Filed: 1988-06-29
Abstract: A stream of pixels 5 produced by column by column sampling of a rectangular pixel image array, is fed to a corresponding rectangular array of columnal shift registers, the array of shift registers being sub-dividable into sub-arrays of sub-registers, the first columnal shift sub-register of each sub-array being fed in parallel with the stream of pixels and the end (base) of each columnal sub-register being connected to the input (top) of the next columnal sub-register, the stages in each sub-array forming the first processing stage of a multi-stage pyramidal processing operator 1, chosen, in combination with the shape of the sub-array, so that the output of the operator performs an adaptive desired operation on the image, possibly programmed to suit the content of the picture. <IMAGE>
Patent GB-2220148-A (GB)
Title: Clamping device for exercise devices
Inventor: HAWKINS KENNETH JEFFREY
IPC: A63B21/072
Filed: 1988-07-01
Abstract: A clamping device, primarily for locating weights on an exercise bar, is a collar (2) with a tongue (9) around a portion of its interior and a cam (5) operated by a lever (6) to flex the tongue into a clamping position, and to release it. The tongue (9) may form the base of a recess (3) into which the lever (6) seats when the device is clamped, the cam (5) being self-holding by an over-centre in that position. <IMAGE>
Patent GB-2224422-A (GB)
Title: Support for use with a bag compost
Inventor: DOYLE JOHN HENRY
IPC: A01G9/12
Filed: 1988-11-04
Abstract: A support for a bag of compost (10) comprises a pair of supports (11, 12), one adjacent to each end of the bag, cross member (21) extending between the support (11, 12), and spaced above the bag (10) wherein each support (11, 12) comprises an elongated stem (13, 113), and a foot (14, 114) at one end of the stem (13, 113), the foot (14, 114), being interposed between a supporting surface on which the bag (10) lies, and an end portion of the bag (10) and the stem (13, 113), extends upwardly from the foot (14, 114), outside the bag (10) to the cross member (21). <IMAGE>
Patent GB-2233907-A (GB)
Title: Rugby ball teeing device
Inventor: BURGESS DONALD
IPC: A63B69/00
Filed: 1989-01-09
Abstract: A teeing device for a rugby ball or the like comprises frusto conical circular piece of soft pliable synthetic rubber shaped in its upper surface to receive the ball. <IMAGE>
Patent GB-2221932-A (GB)
Title: Tile jig
Inventor: PENGELLEY LEWIS NEIL
IPC: E04F13/08
Filed: 1989-05-10
Abstract: A tile jig is constructed of a lattice of strong, thin, plastic material which may be fixed to a wall, floor or other surface to hold and align ceramic or other tiles, by means of upstanding ribs 11 & 12. The surface to which the jig is fixed may have irregular undulations or spaces which, after the tiles have been placed cannot be detected. The tile jig itself remains obscured from view and enables tiles of any size and shape to be placed by unskilled persons. <IMAGE>
Patent GB-2233443-A (GB)
Title: Fireplaces
Inventor: MARTIN BRIAN OLIVER
IPC: F24B1/198
Filed: 1989-06-26
Abstract: A fireplace opening has tiled interior surfaces, the tiles 16 being adhered to walls of the opening and applied from the front. <IMAGE>
Patent GB-2220123-A (GB)
Title: Animal whips
Inventor: DOWNES JOHN JOSEPH
IPC: B68B11/00
Filed: 1989-06-26
Abstract: An animal whip 1 has a shaft 2 which is of plastics material and which is hollow for all or a substantial part of its length. <IMAGE>
Patent GB-2236108-A (GB)
Title: Phenol resin moulding composition
Inventor: OGATA MASATSUGU
IPC: H01B3/40
Filed: 1989-09-08
Abstract: The phenol resin molding composition is obtained by subjecting a resol-type phenol resin to purification until, when the resin is extracted by heating with 10 times the amount of hot water at 120 DEG C for 100 hours or more, the extract has an electric conductivity of 100  mu S/cm or less, a pH of 4-7 and a halogen ion content of 10 ppm or less, then preparing a composition comprising said resol-type phenol resin and a cure rate controlling agent incorporated therewith, optionally incorporating a filler into said composition, kneading the resulting mixture, and then grinding the kneaded mixture. The composition has a good moldability and, when used for resin-sealing of electronic devices or semiconductor devices and transfer-molding of electronic devices using resin, exhibits an excellent adhesive property, electric properties, moisture resistance and heat resistance. The cure rate controlling agent used is an epoxy resin.
Patent GB-2225134-A (GB)
Title: Synchrophaser for aircraft engines
Inventor: SNOW BARTON HUNTER
IPC: F02C9/28
Filed: 1989-11-09
Abstract: At least one "slave" engine of an aircraft is synchrophased with a "master" engine, the engines being for example turbofans. The fan rotor and the core rotor of the slave are synchrophased respectively with the fan rotor and the core rotor of the master by different techniques. Modulation of fuel flow may be used to synchrophase the fan rotors, and variable stator vane control to synchrophase the core rotors. Alternatively these two techniques can be reversed. Another possibility is using fan inlet guide vane angle control to synchrophase the fan rotors, and fuel flow modulation or VSV control to synchrophase the core rotors. 
<??>When the fan speeds of the master and slave engines are close, a fan speed error is derived at 32 and when the error becomes small a fan rotor 1/rev error signal and a fan rotor vibration phase error signal are added at 46 and 48, the combined error signal being supplied to a fuel flow valve 56 to control slave engine fan speed. 
<??>When the fans are synchrophased, similar error signals relating to the core rotors are derived at 64, 65 and 68, and the combined error signal supplied to a VSV actuator 88 to control slave engine core speed. 
<IMAGE>
Patent GB-2235786-A (GB)
Title: Mirror construction
Inventor: VEN KARI
IPC: F24S23/74
Filed: 1990-02-22
Abstract: A mirror construction, for reflecting and focusing solar radiation, includes a frame 3, at least one elongate concave mirror 2 which is rotatably mounted with respect to the frame 3 about an axis 1 which coincides with the focal line of the mirror 2, and an arrangement 7-11 for rotating the mirror 2. The arrangement 7-11 includes at least one auxiliary construction 7 which is mounted on the reverse side of the mirror 2 to the axis of rotation. The auxiliary construction 7 has an outer arcuate toothed portion forming part of a circle with the axis of rotation as centre, a respective gear fixed to a drive shaft 10 in a gear box 9 meshing with the teeth in order to rotate the or each mirror 2. A pipe 1 extends along the axis 1 such that fluid in the pipe is heated by solar radiation. <IMAGE>
Patent GB-2233714-A (GB)
Title: Thrust augmented bypass gas turbine engine
Inventor: MAYER JEFFREY CARL
IPC: F02K3/11
Filed: 1990-04-25
Abstract: Buckling loads across an afterburner combustion liner 52 are reduced by means for creating pressure losses in the bypass flow 96 to a plenum 54 surrounding the afterburner liner 52, thereby reducing differential pressure acting across the liner. Preferably, the bypass airflow is accelerated to a velocity greater than Mach 1 and is then decelerated to a velocity less than Mach 1 for incurring shock waves for generating the pressure losses. The necessary air flow may be produced by a separate guide 68 (& Fig 7) (70) (Fig 5) or a modification (12) (Fig 4) of an engine casing wall. A mixing device 62 (eg. of the lobed variety) may be provided for mixing a portion 86 of the bypass flow 46 with core engine gas flow 38 upstream of the afterburner fuel injectors 58. <IMAGE>