baber/WOPTO huggingface dataset:
Patent GB-1224936-A (GB)
Title: Memory cell
IPC: G11C11/402
Filed: 1968-12-05
Abstract: 1,224,936. Transistor bi-stable circuits. INTERNATIONAL BUSINESS MACHINES CORP. 5 Dec., 1968 [15 Jan., 1968], No. 57759/68. Heading H3T. [Also in Division G4] A memory cell comprises a bi-stable circuit in which periodic restoration of charge stored in the cell takes place during inactive periods of read and write operations. In Fig. 1, FETs 2, 3 form a cross-coupled bi-stable pair, associated with switching FETs 11, 12 respectively. A pulse on word line 19 from the pulsed source 17 will, when coincident with a pulse on bit line 25 or 26 from pulsed source 23 or 24 change over the bi-stable state, this being the WRITE operation. For READ, a pulse on word line 19 enables a sensing amplifier 30 associated with a bit line to determine the state of the cell. A timer associated with a restoration source or the pulsed source ensures that a voltage appears at the ON FET periodically so as to restore charge lost by leakage. This voltage which also appears at the OFF FET gate during both this and READ operations, must be below the threshold voltage of the gate or the circuit state will be changed in error, the gm of the switching FET being lower than that of the storage FET to achieve this. Symmetrical bipolar transistors can be used instead of FETs. Fig. 3 (see Division G4) gives a suggested array of such cells in a memory.
Patent GB-1125031-A (GB)
Title: A device for exerting a radially directed thrust for piston rings
IPC: F16J9/06
Filed: 1966-12-29
Abstract: 1,125,031. Piston rings. E. R. R. GREIFENSTEIN. 29 Dec., 1966 [27 Jan., 1966; 18 March, 1966], No. 58075/66. Heading F2T. A radially-acting ex pander for a pistonring or rings 3, 4, 5, 6, Fig. 1, comprises a band 8 and a spring 10 arranged inside the band in a state of compression,. The band may be provided with corrugations 15 and the rings expanded axially by a spring 7. The band itself may be used as a piston-ring, Fig. 14, the spring being retained by lugs 58 while the flangeportions 59 are urged against the walls of the piston-ring groove by lugs 60. In Fig. 13 (not shown), the band is built up of sections (50) along its length, radially-extending portions (52) serving to urge the piston-rings (53) axially while heel portions (55) transmit the radial thrust of the spring (10). In Fig. 10 (not shown), the spring is of non-circular crosssection and urges a band (31) against an oilscraping ring (29).
Patent GB-1255166-A (GB)
Title: A fuel supply system for an internal combustion engine
IPC: F02B1/00
Filed: 1968-12-06
Abstract: 1,255,166. Fuel tanks. GURTNER S.A. 6 Dec., 1968 [22 Dec., 1967; 22 March, 1968; 19 Sept., 1968], No. 58089/68. Heading B7H. [Also in Division F1] A tube 3 is slidable in a sleeve 2 in the bottom of a fuel tank 1 from a position in which fuel flows to an outlet pipe 22 through the upper end of the tube to a position in which a lateral tube inlet 38 communicates with a chamber 34, a reserve position. The fuel flow from the tube 3 to the pipe 21 is controlled by a membrane 6 which is subjected to the vacuum in a carburetter mixture passage to move it from the seat 8. A rod (39), Fig. 2 (not shown), may hold the membrane 6 away from the seat 8 in the reserve position to provide for filling of the carburetter fuel chamber prior to starting.
Patent GB-1420617-A (GB)
Title: Fault current circuit breaker
IPC: H02H3/347
Filed: 1972-12-19
Abstract: 1420617 Electric circuit-breakers SCHUTZAPPARATE-GES PARIS & CO mbH KG 19 Dec 1972 [21 Dec 1971] 58469/72 Heading H1N [Also in Division H2] A circuit-breaker trip device has three trip units, two of which have permanent magnets opposed to each other and retaining respective armatures 4,6 and 4,5 and the third is arranged to attract its armature. The armatures act on a trip lock 5 in response to current in their windings which are all in series and supplied from the secondary of a core-balance transformer 1, or in response to current in a common coil which may be the secondary of a core balance transformer (Fig. 2, not shown) or in response to the flux in a common core surrounded by windings in the protected circuit.
Patent GB-1325183-A (GB)
Title: Covering means for metallic frame members of windows or  other glazed elements
IPC: E06B3/30
Filed: 1970-12-14
Abstract: 1325183 Insulating frames SEMPERIT AG 14 Dec 1970 [16 Dec 1969] 59253/70 Heading E1J A cover for a window frame member 2 comprises an outer member 14 of U-shaped cross-section having a lining 15 of heat insulating material. The member 14 has convergent legs which are sprung apart on application to the frame. The lining 11 is of a foamed material formed in situ or comprising strips secured to the member 14 by adhesive.
Patent GB-1270779-A (GB)
Title: A light distributor for a photographic type composer
Inventor: NAKAJIMA TOHRU
IPC: B41B21/08
Filed: 1970-12-14
Abstract: 1,270,779. Photographic type composing. ASAHI KOGAKU KOGYO K.K. 14 Dec., 1970 [26 Dec., 1969], No. 59357/70. Heading B6W. A light distributor for a photographic type composing apparatus having a revolvable character disc or cylinder 8 comprises a flash discharge tube light source 1, a reflective surface, e.g. a mirror 4 or prism (14), Fig. 3 (not shown), rotatable about an axis not normal to the surface by a stepping motor 5, and a plurality of light guides 6 each having a first end positioned to receive light from the source when the reflective surface is in a particular position and a second end 6<1> for location adjacent a line of characters on the disc or cylinder. A particular line of characters is thus selected for illumination by a single light source by adjusting the position of the reflective surface. The stepping motor may be rotatable both clockwise and anticlockwise for rapid mirror or prism positioning, the ends of the light guides being positioned, equally spaced, along the circumference of a circle centred on the axis of mirror or prism rotation.
Patent GB-1426640-A (GB)
Title: Piston for planetary piston internal combustion engines and a method of manufacturing it
IPC: F01C21/08
Filed: 1973-12-21
Abstract: 1426640 Making pistons; soldering; welding by fusion AUDI NSU AUTO UNION AG and WANKEL GmbH 21 Dec 1973 [21 Dec 1972 8 Nov 1973] 59448/73 Headings B3A and B3R [Also in Division F1] A piston for a rotary I.C. engine of the trochoidal-type is formed from a plurality of sheet steel components welded or brazed together. The components comprise three flank members 1 with seal-receiving members 5 at their apices, two side members 2, 3, the latter having an internally toothed gear ring 12, a pair of abutting hub members 4 which are secured to the inner faces of the side members 2, 3 and are located with respect to the flank members 1 by elements 6. The members 4 have apertures 8, 10 for the circulation of cooling fluid. Pressure equalizing tubes 13 extend through the piston adjacent each apex. In another construction in which the flank members 1<SP>1</SP> are connected by apex elements 14 and are sandwiched between side members 2<SP>1</SP>, 3<SP>1</SP>, a reinforcing web 15 is located between the hub members 4<SP>1</SP>. Studs 17 locate the side members 2<SP>1</SP>, 3<SP>1</SP> on the hub members 4<SP>1</SP>. To assemble the piston all the components except one side member are tack-welded together and the joints covered with brazing paste (preferably Cu with Ni additions), the side member is located and the piston is placed in a brazing furnace. The piston flanks may be welded to the side members by electron beam or laser beam welding. Instead of applying brazing paste the components may be electrolytically copper-coated before assembly so that in the brazing furnace the copper will fill the brazing gaps. After assembly, the gear teeth, bearing bore and apex seal slots are machine finished.
Patent GB-1457119-A (GB)
Title: Fluid flow measuring apparatus
IPC: G01F9/00
Filed: 1973-12-31
Abstract: 1457119 Measuring fluid-flow TOYOTA JIDOSHA KOGYO KK 31 Dec 1973 [10 Aug 1973] 60172/73 Addition to 1457120 Heading G1R In a combustion engine fuel consumption measuring apparatus similar to that set out in the Divided Application 2443276, electrically operable valve 12, 31 and an electrically operable recirculating pump 11 are electrically controlled by a fuel consumption meter control device 13 provided with a vent switch 14 comprising three gauged contacts 14a to 14c of which contacts 14a, 14b are connected in series to a D. C. converter 23 and contact 14c is connected through a gate signal generator 18 and a time signal generator to the  converter 23 the arrangement is such that the control device 13 produces an electrical signal to electrically control the valves 12, 31 and pump 11  and a fuel by-pass switch 36, in parallel with the contact 14a and operable separately therefrom, so that fuel may by-pass the fluid-flow measuring means 7 during operation of the engine. The specific gravity of the fuel is measured by a float 24, the fuel temperature by a thermometer 25 and the pressure by a gauge 37 placed after the vessel 6.
Patent GB-1444556-A (GB)
Title: Hinge
IPC: E05D11/10
Filed: 1972-12-30
Abstract: 1444556 Locking hinges I H W ENG Ltd 21 Dec 1973 [30 Dec 1972] 60277/72 Heading E2F In a hinge comprising two hinge parts I and 2 mounted on a door and frame respectively, each hinge part is pivotally mounted on a hinge, pin 6 and the hinge includes first and second cam members 4 and 26 fixed with respect to one of the hinge parts 2 and a double-cam member 3 fixed with respect to the other hinge part 1 is disposed between the first and second cam members 4 and 26, the double-cam member 3 having a cam surface 23, 24 on each of the opposite sides of the member engageable with a cam surface 22, 28 on a respective one of the other cam members to define at least two check positions. In operation, the hinge is arranged so that with the door (not shown) in the closed position, the lower cam surfaces 22, 24 are biassed in mesh by a spring 5 and the upper cam surfaces 23, 28 are out of mesh. On opening the door with sufficient force to overcome the spring bias, the first hinge part 1, having a reaction pin 8 secured thereto, is moved about the hinge pin 6 and moves the double-cam member 3. The lower cam surfaces are thereby moved out of mesh and after angular movement of approximately 40‹, the upper teeth mesh under the bias of the spring 5, to define a first check position. Further opening of the door against the spring bias brings the lower cam surfaces back into engagement after approximately 20‹ further angular movement to define a second check position. To achieve this arrangement the cam surfaces are in the form of teeth such that the teeth in each set are 60‹ apart and the two sets of teeth 23, 24 and the double-cam member 3 are offset by 20‹. Further opening beyond the second check position is restricted by the reaction pin 8 engaging with a stop spindle 7.
Patent GB-1377479-A (GB)
Title: Production of polyesters
IPC: C08G63/87
Filed: 1970-12-23
Abstract: 1377479 Polyesters IMPERIAL CHEMICAL INDUSTRIES Ltd 9 Dec 1971 [23 Dec 1970] 61168/70 Heading C3R A polyester or copolyester precursor or mixture of precursors is polycondensed in the presence of a compound in proportion equivalent to 15-150 parts per million of germanium dioxide, a trivalent antimony compound in proportion equivalent to 100 to 307 parts per million of antimony trioxide, and phosphoric acid or a phosphate ester in proportion equivalent to 50-6000 parts per million, the parts per million being based on the weight of terephthalic acid equivalent to the dicarboxylic acid or acids on which the polyester or copolyester is based. The germanium compound, which is soluble in the precursor or precursor mixture, may be amorphous germanium dioxide, germanium tetrachloride, or salt of a germanium acid or a reaction product of ethylene glycol with germanium dioxide or finely divided germanium metal. The antimony compound, which is soluble in the precursor or precursor mixture, may be antimony trioxide, antimony triglycoloxide, antimony triacetate or antimony trichloride. The phosphate ester may be triphenyl phosphate, triethyl phosphate, diphenyl propyl phosphate, dibutyl phenyl phosphate, tri-(2- hydroxyethyl) phosphate, dibutyl hydrogen phosphate or butyl dihydrogen phosphate. The germanium and/or antimony compound may be present during the preparation of the precursor. The polyester may be one prepared by the reaction of terephthalic acid or 1 : 2-bis-(4- carboxyphenoxy) ethane optionally in admixture with a minor proportion of adipic, isophthalic or 5-subphoisophthalic acid, with ethylene glycol or 1 : 4-tetramethylene glycol.
Patent GB-1263828-A (GB)
Title: Liquid spraying apparatus
Inventor: KINKELDER PETRUS JOHANNES ALLO
IPC: A01M7/00
Filed: 1969-12-18
Abstract: 1,263,828. Crop spraying. P. J. A. DE KINKELDER. 18 Dec., 1969, No. 61697/69. Heading A1D. [Also in Division B2] A liquid spraying apparatus, especially suitable for spraying crops with insecticides, fungicides and fertilizers, as shown, consists of a spray liquid tank 2 supported on a trailer which is adapted to be towed behind a tractor, a centrifugal air blower 3, which is driven by a power take-off of the tractor. A spray mouth structure 4a, 4b connected to the blower 3, has a plurality of outlets and diffusion chambers 5, each chamber being connected to a distributor manifold 7 by pipes 9, the manifold 7 being connected to the tank 2 by pipe 6. The spray mouth structure consists of two portions 4a and 4b in the form of outwardly flaring nozzles connected to the blower by conduit 17, and fastened so that each portion is rotatable around an axis perpendicular to supporting plate 8. As each portion ends in a cleft shaped opening 18 running a sector of nearly 90‹, the spray liquid can be sprayed over a sector of 180‹. One of the portions may be lengthened by adding piece 19, to increase the number of spray sector combinations.
Patent GB-1276706-A (GB)
Title: Improvements in or relating to lawn mowers
Inventor: CONSTABLE FREDERICK JOHN
IPC: A01D34/42
Filed: 1969-12-23
Abstract: 1276706 Lawn mowers WESLON ENG CO Ltd 3 Nov 1970 [23 Dec 1969] 62576/69 Heading A1F A removable rake attachment for a lawnmower comprises a shaft 2 carrying tooth members 3 between spacer members 5, the assembly being clamped between two end plates 6 perpendicular to the longitudinal axis of the shaft 2. The other ends of the end plates 6 are attached to vertical plates 8 of the clamping arrangement 4 by means of a pivot 9. The clamping arrangement 4 is also provided with jaws 10 which are clamped when in use to a roller shaft of the mower, and adjustable stop means 12 to limit the upward movement of the shaft 2. The tooth members 3 have a curved leading edge 16 provided with a knife edge 17, and a dragging edge 18 which lies flat on the ground before the mower begins operation. As the mower is moved over the ground, the tooth members 3 catch on suitable material, and the end plates 6 move upwardly until they combat the adjustable stop 12, the tooth members 3 performing a raking action. The material raked up is passed rearwardly over the shaft and into the cutting blades of the mower. In another embodiment, the attachment may comprise only the shaft 2, tooth members 3 and end plates 6 which are pivoted on the roller shaft, or about other mounting means. In a further embodiment, the end plates 6 may be split into two pivotally connected parts, and in a modification of this, one part is provided with a thread shank which passes through a slot in the cooperating port so that when not required the lawn rake may be clamped in a non-operative position.
Patent GB-2026260-A (GB)
Title: DC-to-DC converters
IPC: H02M3/335
Filed: 1978-07-17
Abstract: A DC-to-DC Forward Converter of which the input circuit incorporates a DC input voltage source (D.C. IN), a switching device (SW1), the primary winding of a transformer and transfer reset means to limit the rise in reset voltage across the primary winding when the switching device is off, is characterised in that the transfer reset means consists of means to provide an effectively constant voltage (CONSTANT VOLT. LOAD) connected via a unidirectional device (D4) to the primary transformer winding whereby the reset voltage across the primary winding is the difference between said effectively constant voltage and the input voltage. <IMAGE>
Patent GB-2033484-A (GB)
Title: Controlling aircraft engine exhaust noise
IPC: F02K1/34
Filed: 1978-07-19
Abstract: By pumping at high pressure cheap liquid (e.g. water) through holes so that the liquid is in the form of solid rods immediately adjacent to the aircraft engine exhaust, these rods act as noise deflectors/ insulators. The holes provide a solid wall of liquid pumped upward at an angle to the exhaust flow to deflect the exhaust noise in a longer path to the ground. The water after dispersion by the exhaust gases acts as a noise absorber.
Patent GB-2029677-A (GB)
Title: Fluid warmer
IPC: F28F21/06
Filed: 1978-08-16
Abstract: A heater for blood plasma flowing through a flexible tube comprises a block (12), having elongate passages (11) in one face into which the tube can be pressed to be in intimate heat exchange relationship with the block, a plurality of resistance heaters 13 embedded in the block and connected to different connector pins 14 of a multiple male connector (15), and a plurality of different assemblies each consisting of a multisocket female connector (27), a lead (28), and a connector (29) adapted for connection to a different standard power supply. The sockets of female connectors (27) on the different assemblies are interconnected in different ways so that the heaters (13) are connected in different ways (series, series/parallel or parallel) in accordance with the particular power supply being used. <IMAGE>
Patent GB-2030041-A (GB)
Title: Adjustable bed foot rest
IPC: A47C20/02
Filed: 1978-08-17
Abstract: The aid is placed inside the bed, between the top and bottom sheets. When the patient wishes to use the aid, he takes hold of the HANDLE attached to which is a CORD which is attached to a pawl. Therefore, when the HANDLE is pulled, the PAWL will lift out of the step and allow the FOOT REST to move in either direction along the GUIDE RAIL.   When the patient releases the pressure on the HANDLE the SPRING will return the PAWL, under pressure, into the locked position. With the FOOT REST (I) in the locked position the patient will not slide down the bed. <IMAGE>
Patent GB-2004782-A (GB)
Title: Hydraulic drilling machine
IPC: E21B1/26
Filed: 1978-09-15
Abstract: In a hydraulic drilling machine having a supply line (13) and a feed motor (16) having a supply line (18), a non- return valve (27) has its outlet connected to the feed motor supply line (18) and its inlet connected to tank and this non-return valve is releasable by application of the pressure from the supply line (13) of the feed motor or, if applicable, the pressure in the flush medium line which is obtained by way of a pressure-responsive valve (20) and an associated adjustable throttle valve (21). Thus, the pressure in the supply line for the feed motor is made dependent upon the pressure in the supply line for the drill motor (10) or in the flush medium supply line and conditions indicative of start drilling or lock drilling can be utilised to modify the pressure in the supply line for the feed motor. <IMAGE>
Patent GB-2035420-A (GB)
Title: Road breaking
IPC: E01C23/12
Filed: 1978-11-23
Abstract: Tarmacadam or concrete road surfaces are broken by means of a horizontally acting ram driving a plough blade under the road surface. Alternatively the ram drives a claw grab to excavate a horizontal shaft under the road surface after which the concrete is snapped off by a road breaking portcullis. In a further embodiment the ram drives a multipoint road drill which is hammered home using pneumatic loading on the free end of the ram. <IMAGE>
Patent GB-2018380-A (GB)
Title: Fastener
IPC: F16B35/06
Filed: 1978-12-13
Abstract: A fastener, see Figure 2, suitable for use in the assembly of suspended ceilings comprises a bolt, the head 3 of which is provided with bore 11 through which ends 9 of pins 8 may be projected into a component of the suspended ceiling by rotation of an actuator 4. The head may be formed by a nut threaded onto a threaded member. As shown in Figure 6, the head may be formed by members 25, 26 and the pins 27 moved outwardly by rotating actuator 30. In another modification, Figure 4 (not shown), the head may be provided with curved end faces, and the pins actuated via rods which pass through their radially- innermost ends. <IMAGE>
Patent GB-2012185-A (GB)
Title: Device for separating lead particles from the exhaust gases of an internal combustion engine
IPC: F01N13/02
Filed: 1978-12-29
Abstract: Pollutant particles such as lead particles are separated from engine exhaust gases by passing the gases through a restricted flow passage (4) to increase their speed, reversing the gas flow by impingement on a first curved baffle (5) having apertures (8) backed by a chamber (11) containing a particle-conglomerating packing (13), then reversing the gas flow again by a second curved and apertured baffle (6) backed by a similar packing (12) before the gases discharge to exhaust through an outlet (14). The packings, 12, 13 are of expanded metal or wire mesh. A third baffle 7 restricts the gas flow between the first and second baffles. Aperture 20 allows air to flow into chamber 11 so encouraging circulation of exhaust gases in the chamber. <IMAGE>
Patent GB-2013096-A (GB)
Title: Water carbonating apparatus
IPC: B01F3/04
Filed: 1979-01-17
Abstract: In the carbonating of water a control valve 24 is located between a carbonating vessel 28 and the water feed pump 18 and is arranged to move from a first position to a second position when the pressure at the output of the pump deviates by a predetermined amount from an operating pressure so that any carbon dioxide which backflows via pipe 26 from the carbonating vessel will be diverted by the said valve to an exhaust. The control valve 24 is preferably a spring biassed solenoid operated valve which will move by spring action exhaust CO2 in the event of failure of the electrical supply to the solenoid valve. A level sensing device 42 for sensing the maximum and minimum levels of water in the carbonating vessel controls on/off operation of the pump and indirectly controls the operation of the valve so that when the pump is stopped, the valve will be in a position venting any backflowing CO2, to prevent such CO2 from coming into contact with the supply water. <IMAGE>
Patent GB-2042038-A (GB)
Title: Double glazing
IPC: E06B3/28
Filed: 1979-01-26
Abstract: Simulated double glazing wherein a transparent sheet or film is secured around a window or door by means of touch closure material thereby to provide a draughtproof sealed screen which is easily removable and replaceable.
Patent GB-2013201-A (GB)
Title: Microbicidally Active Acylated Phenylaminotetrahydro-2- Furanones
IPC: C07D307/33
Filed: 1979-01-26
Abstract: Microbicidally active acylated and phenylaminotetrahydro-2-furanones of the formula I   <IMAGE>  in which  R represents a halogen atom or a C1-C4 alkyl or C1-C4 alkoxy group, R1 represents a hydrogen or halogen atom or a C1-C3 alkyl or C1-C4 alkoxy group,  R2 represents a hydrogen or halogen atom or a C1-C3 alkyl group, and R3 represents a hydrogen atom or a methyl group, the total number of carbon atoms in the substituents R, R1, R2 and R3 in the phenyl ring not exceeding 8, and each of R4 and R5, which may be the same or different, represents a hydrogen atom or a methyl group may be employed in the form of pest control compositions, in particular for controlling phytopathogenic fungi or for preventing fungal attack of cultivated plants.