baber/WOPTO huggingface dataset:
Patent GB-2036315-A (GB)
Title: Pulse-echo ultrasonic wave- energy imaging system incorporating high-angular velocity oscillated transducer
IPC: G01N29/06
Filed: 1978-12-05
Abstract: Transducer (100) completely immersed in ultrasonic propagating liquid (102) can be oscillated back and forth at a high rate, without producing significant turbulence in liquid, if oscillation velocity varies as a predetermined smooth continuous function of time. <IMAGE>
Patent GB-2027043-A (GB)
Title: Soft fluoropolymer for use as a lining material for a denture base
IPC: A61K6/00
Filed: 1979-08-03
Abstract: A soft fluoropolymer having a modulus of rigidity of 5-200 Kg/cm<2> is used to line a denture base. The fluoropolymer lining can be applied to the denture base by means of heat and pressure, thereby obviating the need for an adhesive. The fluoropolymer is selected from copolymers of various unsaturated fluoromonomers or CF3.NO; F- containing silicone rubber; F- containing triazine rubber; and F- containing phosphazine rubber.
Patent GB-2056574-A (GB)
Title: Toroidal modular captors of the energy of sea waves
IPC: F03B13/20
Filed: 1979-08-10
Abstract: A toroidal semi-submersible vessel 1 has its centre of gravity G disposed below the centre of buoyancy C and oscillates about a horizontal axis which passes through the geometric centre of circle 6. In the lower part of the vessel are chambers 12 and 13 through which sea water is pumped by the relative movement of member 11. The sea water drives turbines 20 and electrical generators 21. Alternatively the vessel oscillates relative to an anchored cradle which engages part of the rim of the vessel and a generator mounted on the cradle is driven through gearing. Again the generator may comprise a column of mercury or a copper block which move radially or circumferentially respectively relative to an electromagnet. A plurality of vessels 1 may be assembled side-by-side to form a unit or may be constructed and assembled so that they form a unit having a helical duct. <IMAGE>
Patent GB-2060024-A (GB)
Title: Temporary shelter
IPC: E04H15/28
Filed: 1979-10-04
Abstract: A temporary shelter that has a roof constructed like an umbrella. Supported by a central support and a flexible wall detachably fixed to the edge of the roof by fastening means. The fastening means may be resilient toothed jaw clamps secured to a beading on the umbrella top and provided with a hook to engage the wall, or may be a sliding fastener. <IMAGE>
Patent GB-2039586-A (GB)
Title: Lock assembly for a door
IPC: E05C1/16
Filed: 1979-11-14
Abstract: A lock assembly comprises a rotatable follower (12) operated by a knob or lever (not shown) on a door, a slidable runner member (6) with which the rotatable follower is engaged, a relatively heavy coil spring (7) interposed between the slidable runner and a fixed abutment (1b), and relatively light springs (13) accommodated in a latching nose (4) which is slidable on flat bearing portions (6d) of the runner to allow latching without movement of the runner. <IMAGE>
Patent GB-2041665-A (GB)
Title: Electric current supply system
IPC: H01R25/14
Filed: 1979-12-19
Abstract: A continuous outlet current supply system comprises a track of cylindrical form defining a channel 13 housing conductors 16, and having opposed flanges 17, 18 spaced inwardly from the mouth of the channel, and an adaptor insertable into the track at any position along its length, the adaptor being characterised in that operation of a single handle 26 causes contact fingers 24 and locking lugs (23) to engage with the track. <IMAGE>
Patent GB-2063635-A (GB)
Title: Lawnmower
IPC: A01D34/82
Filed: 1980-01-03
Abstract: A rotary lawnmower has a first handle (10) for manoeuvering the mower along or over the ground, and a second handle (13) for carrying the mower when not in use. The manoeuvering handle (10) is adjustable between a stowed inoperative position, a range of variably inclined operative positions, and an upright parking position, the carrying handle 13 providing a rigid U- or C-shaped link in the adjustment mechanism. This adjustment is carried out by positioning one end of the handle 13 in either of recesses 20 or 21 in a spring biased latching arm 15. <IMAGE>
Patent GB-2069945-A (GB)
Title: Stabilizer for power driven vehicle
IPC: B60G21/055
Filed: 1980-02-22
Abstract: In a U-shape tubular stabilizer for a power driven vehicle the transitional regions joining the limbs and the centre portion of the tube are provided with reinforcements which can extend into the limbs and the centre portion of the stabilizer beyond the arcuate transitional regions. The reinforcements are formed by external or internal thickenings (4) of the tube and/or by inserts, which may be solid or tubular. <IMAGE>
Patent GB-2048681-A (GB)
Title: Adapter connected to a plastics cannula
IPC: A61M25/00
Filed: 1980-04-15
Abstract: An adapter (1) having a cannula (3) and for connecting a catheter (4) to a syringe or a flexible infusion tube comprises an inlet (2) for connecting said syringe or tube leading to a passage (5) bounded by a wall having means (9) for co-operating with complementary means (10) on an end piece (11) of the catheter (4) to secure said catheter (4) to the wall of said passage (5). <IMAGE>
Patent GB-2080596-A (GB)
Title: Telephone answering device
IPC: H04M1/65
Filed: 1980-07-17
Abstract: A telephone answering device comprises two cassette machines, the first, Figure 1, for reproducing a prerecorded message and the second, Figures 8-10 (not shown), for then recording an incoming message. Both the tape transports revert to a rewind mode after every transducing operation to restore the tapes to the start. The second machine also has a manually- controlled fast-forward mode. For normal transport, solenoid 16 is energised to pull a slide 15: this pivots a lever 10 and a belt-driven roller 7 thereon contacts a pulley 12 on the take-up shaft 13, and also swings into operative position a plate 14 carrying heads (not- shown) and a pinch roller 23, the plate being pivoted at either end to the chassis sides. When the solenoid is de-energised, a roller 1 on a slide plate 25 is allowed to more transversely into contact with capstan flywheel 3 and the supply shaft 5 is driven therefrom via an intermediate spring-loaded roller 2. Rewind thus occurs until a photoelectric reel-rotation detector (see also Figures 12-16, not shown) detects stoppage of a sectored disc on the supply shaft. The fast-forward device of the second machine comprises an idler (48) on the slide plate (49) corresponding to the slide plate 25 which can be moved by a push-button (53) so that the idler contacts both flywheel (50) and take-up pulley (51). Requisite control circuits for automatic answering and for manual and remote control are disclosed, Figures 17, 18 (not shown). <IMAGE>
Patent GB-2057168-A (GB)
Title: Power supplies
IPC: H02M3/337
Filed: 1980-07-22
Abstract: In a power supply, an unregulated DC, rectified from AC 2, is periodically applied via switches S1, S2 to a resonant circuit. The desired DC output voltage across capacitor 32 is derived by rectifying means 26, 28 coupled to the resonant circuit. Regulation is achieved by determining the error between the output voltage and a reference voltage 44', and using this to control the relationship between the periodicity of the switches and the resonant frequency of the resonant circuit. Control of the switches may be attained by varying the inductance of one of the inductors in an inductive oscillator O so as to vary its frequency and coupling another inductor in the oscillator to transformers that activate the switches. <IMAGE>
Patent GB-2080121-A (GB)
Title: A golf tee
IPC: A63B57/00
Filed: 1980-07-24
Abstract: A golf tee has the tip and at least part of the shank made of aluminium or magnesium alloy or an alloy of one or both and may have a rubber O-ring at its upper external rim. <IMAGE>
Patent GB-2058148-A (GB)
Title: Washing machine having drain blockage indicator
IPC: D06F33/47
Filed: 1980-09-10
Abstract: A washing machine 1 is provided with means to detect when a drain filter 7 connected to the outlet of the washing chamber 2 is blocked. A low- level water sensor 12 used during normal operation of the machine for normal control of the machine is monitored during a drainage operation and a controller 10 is arranged to establish whether the water sensor 12 has operated a predetermined time determined by a timer 18 after the drain pump 6 is started. If the switch 12 does not change state, then it is assumed that the filter is blocked and, either immediately or at the end of the wash programme, a warning light 20 is illuminated. <IMAGE>
Patent GB-2088810-A (GB)
Title: Cable Handling Arrangement
IPC: A61B6/00
Filed: 1980-12-08
Abstract: A cable handling arrangement for controlling fluid-carrying or electrical cables linking a rotary member to a stationary member includes a flat spring which is formed with one component of a positive locating mechanism, the other component being formed on the rotary and stationary members. In one example, bars are secured to the flat spring and notches are provided in the rotary and stationary members. In another embodiment, the respective components of the positive locating mechanism comprise pegs and holes. <IMAGE>
Patent GB-2069115-A (GB)
Title: Burner bricks
IPC: F27D99/00
Filed: 1981-02-04
Abstract: A burner brick 1 for a heat treatment furnace is made of alumino- silicate ceramic fibres and affords a burner orifice 2. The orifice 2 is lined by a thin sleeve 3 of refractory material which is removably secured in position, which may be replaced and which protects the ceramic fibres from erosion. <IMAGE>
Patent GB-2075700-A (GB)
Title: Lithographic printing plates and light-sensitive compositions for use in them
IPC: G03F7/023
Filed: 1981-04-15
Abstract: A light-sensitive composition as, or for, the image layer of a surface lithographic printing plate comprises a homogeneous mixture of   (i) the esterification product, insoluble in dilute aqueous alkali, of an alkali-soluble novolac resin with a quinone diazide sulphonic acid in an amount sufficient to esterify no more than 15% of the free hydroxyl groups of the alkali-soluble novolac resin, and (ii) an alkali-soluble resin with a molecular weight that is low enough to give the compatibility necessary for stability of the homogeneous mixture but high enough for the resin to have a useful reinforcing effect, eg. vinyl chloride/vinyl acetate co-polymer, polyvinyl acetate polyvinyl acetal or an epoxy resin derived from epichlorohydrin and bisphenol A. The plates have good sensitivity, alkali-solubility differential, and press life. i
Patent GB-2074932-A (GB)
Title: Blow Molded Polyester Bottle
IPC: B29C35/08
Filed: 1981-06-02
Abstract: A bottle-shaped container (10) of biaxially oriented polyethylene terephthalate is produced by biaxial orientation blow molding. The neck section (11) and/or the bottom section (13) of the container which are not substantially oriented by the blow molding have an increased spherulitic texture density produced by heating the neck section (11) and/or bottom section (13) at a temperature of from 140 DEG to 180 DEG C for at least 2 1/2 minutes, and cooling the heated sections at room temperature until the sections have a milky white color. <IMAGE>
Patent GB-2080101-A (GB)
Title: Improvements in or relating to herbicide applicators
IPC: A01M21/04
Filed: 1981-06-24
Abstract: An applicator for systemic or translocating herbicides, the applicator comprising a housing (7), Fig. 6 forming a reservoir for a herbicide, the housing (7) having in association therewith at least one absorbent pad or rope (22), the herbicide within the reservoir is displaced into the absorbent pads (22). The applicator can include flow control means adapted to control the flow of the herbicide from the reservoir to or through the absorbent pad, the flow control means including an apparatus (32), Fig. 7, with a tubular bore (33) therethrough, the apparatus (32) has engaged thereon a cap (38) which has a hole (39) therethrough, the tubular bore (33) is shaped to have fitted therein a flexible gromet (35'), Fig. 9, which has extending therethrough the absorbent pad one end of which is within the reservoir on one side of the apparatus (32) and the other end of which is outside the cap (38), the absorbent pad, in section, is of similar shape and size as an aperture (37') in the gromet (35), the apparatus (32) and the cap (38) are engaged together in a bayonet type manner, the cap (38) when engaged with the apparatus (32) forces the gromet (35) against the periphery of the absorbent pad to control and restrict the flow of liquid therethrough. <IMAGE>
Patent GB-2080890-A (GB)
Title: Improvements in hydraulic brake actuators
IPC: F16J15/32
Filed: 1981-07-02
Abstract: A brake actuator comprises an annular piston 18 working in a cylinder 19 with a seal 22 carried by the piston 18 for engagement with the outermost wall of the cylinder 19 and a seal (23) housed in the innermost wall of the cylinder 19 for engagement with the piston 18. Each seal 22, (23) is of triangular outline and is received in a seal- receiving groove which has first and second relatively inclined end walls 31 and 32 with which faces (36) and (37) on the seal 22, (23) are in full facial engagement, and a sealing region for engagement with the wall of the cylinder or the piston is defined by and between the third remaining face (38) and the face (36). A space 42 is provided between the second end wall 32 and the third face 38 to accommodate any deformation of the material of the seal 22, 23 which is otherwise confined between the piston 18 and the cylinder 19. <IMAGE>
Patent GB-2078683-A (GB)
Title: Stackable and Nestable Container for Handling Loose Materials
IPC: B65D88/26
Filed: 1981-07-06
Abstract: A container, e.g. for use in transporting and storing agricultural produce, has two inclined end walls 36, and two side walls 45 each movable between a vertical stacking position and an inclined nesting position. A discharge aperture in the base of the container is closed by two downwardly pivoting trap doors fitted with a releasable locking means. Legs allow the container to be lifted by a fork lift truck or the like and the trap doors can be opened between the tines of the truck to discharge the contents of the container whilst supported on the tines. <IMAGE>
Patent GB-2109717-A (GB)
Title: Cold working of metal rod or wire
Inventor: DAVIES PETER GOUGH
IPC: B21C1/12
Filed: 1981-11-18
Abstract: Apparatus for the cold working of hot rolled steel rod comprises a set of freely rotatable pulleys 72 around which the rod runs. The set of pulleys as a whole is driven for orbital revolution. The rod is twisted in one direction as it enters the pulley system and in the opposite direction as it leaves. The rod is pulled through the pulley system by a rotatable coiler 78 downstream of the system against braking effort imparted to the rod upstream of the system whereby the rod is pulled through under tension. Control of the transverse dimensions of the rod is imparted by a sensor 74 downstream of the pulley system, the output from which is used to adjust the tension imparted by the braking pulley 76. The apparatus operates also to descale and straighten the rod continuously and is particularly useful in the production of steel rod for welded mesh in reinforcing concrete. <IMAGE>
Patent GB-2088726-A (GB)
Title: Gas flow regulator valve
IPC: B63C11/18
Filed: 1981-12-02
Abstract: A gas flow regulator valve in which gas flow through the valve from an inlet (12) to an outlet (36) is by way of radial flow passages (26) in a tubular member. A flexible impermeable sleeve (37) is held in engagement against the cylindrical surface of the tubular member by the action of ambient pressure so that the gas has to lift the sleeve against this pressure in order to access the radial flow passages (26). An arcuate portion of the radial flow passages is occluded by suitable means (30) e.g. a shim plate so that the flexible sleeve (37) is first lifted over the occluded portion and then lifts radially from the tubular member with a peeling action so as to open the radial flow passages (26) to provide the required gas flow area. The regulator valve is particularly suited for use in controlling the exhaust of gas from a diving helmet in a deep diving breathing system and provides a safety feature when breathing gas mixture is circulated through the helmet by a push-pull pump. <IMAGE>
Patent GB-2090669-A (GB)
Title: Line-by-line photocopying
IPC: G03B27/52
Filed: 1981-12-04
Abstract: A line-by-line photocopier employs a short conjugate length optical scanner in the form of sets of objective, field and projection lenses 13 in three respective arrays 10, 11 and 12, the lenses being aspherical converging lenses of equal focal length, each array comprising two staggered rows of lens, and a honeycombed aperture structure being situated between each pair of lens arrays, each aperture being of square cross section with a diagonal at right angles to the direction of scanning. <IMAGE>
Patent GB-2089975-A (GB)
Title: Flame Monitors
IPC: G01J1/16
Filed: 1981-12-15
Abstract: A fail-safe flame monitor includes a flame relay circuit (15) having an amplifier (17) that holds a flame relay (18) in a position thereof indicating a flame only when an alternating signal in a given frequency range, which signal is influenced by a UV-cell flame sensor (1), is applied to an input (14). A shutter means (2, 3), which oscillates synchronously with the mains frequency, interrupts the radiation to the UV-cell (1) always during the same half-cycle of the a.c. supply (11). The amplifier (17) actuates a pole changing switch (13) by way of a control output (8) at a rate in the given frequency range, the pole changing switch changing the synchronisation between the shutter position and the pulses of a half-wave rectified d.c. voltage (UF) applied to the UV-cell circuit. In a light phase, the pulses (UF) appear if the shutter (3) is open, and in a dark phase, when it is closed. During the light phase, current pulses occur at the input (14) if a flame is present, while in the dark phase no such current pulses will occur at the input (14) unless the UV- cell is defective. The alternating signal is produced by the successive light and dark phases. When pulses are produced in the dark period as well as in the light period, the signal frequency changes to a value outside the given frequency range and the monitor will not indicate the presence of a flame. The pole changing switch (13) may comprise thyristors (Figures 4 and 5, not shown). <IMAGE>
Patent GB-2103033-A (GB)
Title: Operating circuit for fluorescent lamps
Inventor: LEVKOVITZ MOSHE
IPC: H05B41/04
Filed: 1982-07-27
Abstract: A circuit for electronically igniting and operating fluorescent lamps (F) of either the one-pole ("cold"), or the incandescent ("hot") electrodes type is disclosed. In the first case, the circuit comprises a capacitor (C1) and a rectifier device (B) connected in series with the cold electrodes (G). The rectifier device satisfies the conditions of having an avalanche breakdown voltage level less, than twice the peak value of the supply voltage and more than the peak voltage across the lamp during its operation. In the case of hot electrodes (G'), a diode (D2) is connected across the capacitor (C1). <IMAGE>
Patent GB-2105826-A (GB)
Title: Projectile launching device
Inventor: CAMPBELL COLIN IAN
IPC: F41B11/00
Filed: 1982-08-19
Abstract: A device for launching under the action of air or gas under pressure a projectile containing equipment required at a remote location comprises a barrel (12, 14, 19) in which a projectile (29) is arranged at a firing position in the barrel. The bore of the barrel at the firing position is recessed to form between the barrel and the projectile a chamber (23) for containing air or gas under pressure. Forward and rearward circumferential resilient seals (32) and (33) mounted in or forming part of the projectile (29) and engage the bore of the barrel to prevent the flow of air or gas from the chamber (23) forwardly and rearwardly respectively along the bore of the barrel. Upon an advance of the projectile (29) from the firing position by means of air or gas supplied at (28) or bled from chamber (23) past seal (33) the rearward seal (33) moves to a position in which it no longer prevents the flow of air or gas from the chamber rearwardly in the bore of the barrel, whereupon the air or gas under pressure in the chamber (23) acts on the rear of the projectile to propel it forwardly along the barrel and launch it from the forward end of the barrel. <IMAGE>
Patent GB-2105013-A (GB)
Title: Hydraulic control valve
Inventor: OWEN STEPHEN
IPC: F15B13/04
Filed: 1982-09-02
Abstract: The invention is concerned with a hydraulic control valve of sandwich format and in particular with a control block to be incorporated in such a valve to provide pressure compensation enabling the speed of an actuator to be controlled independently of the load on the actuator. The control block incorporates a shuttle valve 18 to sense the higher of the pressures in the service lines A and B and controls a variable throttle 20 connected in the hydraulic circuit of the actuator 12, the throttling cross section increasing as the pressure across the actuator 12 increases. In an alternative embodiment, the lower of the two pressures may be sensed and used to control a variable throttle of which the throttling cross section increases with decreasing pressure. <IMAGE>
Patent GB-2107765-A (GB)
Title: Tunnel lining
Inventor: COOPER LESLIE TREVOR
IPC: F16L55/165
Filed: 1982-10-20
Abstract: A lining (1) for a tunnel has a wall structure comprising a reinforced plastics inner layer (2) and a ribbed, reinforced plastics outer layer (3) incorporating particulate material (25), e.g. sand. Preferably the tunnel lining (1) is tubular and the outer layer (3) comprises a lattice-like structure made up of at least two courses of helical ribs (4, 5). The ribs (4) of one course have a different hand to the ribs (5) of the or each adjacent course so that the ribs (4, 5) of adjacent courses cross one another to define a plurality of diamond-shaped recesses (6). <IMAGE>
Patent GB-2129752-A (GB)
Title: Roller conveyors for single-layer ceramic firing kilns
Inventor: CARRAROLI DARIO
IPC: F27B9/24
Filed: 1982-11-11
Abstract: A roller conveyor 2 comprising a plurality of equidistant hollow metal or ceramic rollers, at the drive end of each of which is provided a friction clutch device 15, from the driven element 13 of which there extend means 17 for rotating the rollers, together with retention means 22 for this latter, which are arranged to prevent its withdrawal from the respective firing tunnel 1. <IMAGE>
Patent GB-2117940-A (GB)
Title: Data processing apparatus with vector branch indicators controlling firmware
Inventor: FLYNN RICHARD T
IPC: G06F9/30
Filed: 1982-12-10
Abstract: A microprogrammed data processing system wherein throughput of the system is increased during the processing of decimal numeric instructions by apparatus which indicates to the microprogramming means the characteristics of the operand to be processed. This enables the proper microprogram subroutine to be generated. Decode logic 730-204 in the decimal unit responds to firmware control signals RSCR 88-89, 94- 97, to generate decimal unit commands, DU CMD 200-315, for input to status flag control logic 730-202. Decimal unit control logic 730-200 responds to descriptor information from the control unit 704 and to the status flag signals to provide vector branch control signals from which vector-branch signals PK VCTR 0-3 are output to execution address and branch circuits 701-1. An appropriate sub-routine of the microprogram instructions is then selected to process the operand. <IMAGE>