baber/WOPTO huggingface dataset:
Patent GB-2060223-A (GB)
Title: Constant Potential High Voltage Generator
IPC: G21K5/10
Filed: 1980-10-01
Abstract: A circuit, which produces voltages suitable, for example, for application to anode (114) and cathode (116), respectively, of an x- ray tube (112). Includes means (130, 132) for producing first and second varying direct voltages (on lines 120, 122) having an average potential which is positive and negative, respectively, relative to ground. Means (220, 221) produce a control signal (on lines 137) proportional to the difference between those voltages which is compared (136) with a reference signal to produce an error signal (on line 138). Feedback means (140, 142) respond to the error signal to change the values of the first and second d.c. voltages in a sense to reduce said error signal to zero, so that the difference between the first and second voltages is maintained constant. <IMAGE>
Patent GB-2085098-A (GB)
Title: Friction Clutches and Brakes
IPC: F16D13/64
Filed: 1980-10-04
Abstract: A clutch or brake has grooved, interfitting friction surfaces to increase their effective area of contact, the grooves having straight or curvilinear flanks. The friction materials may have coefficients of expansion selected to ensure increased frictional engagement with increasing temperature. <IMAGE>
Patent GB-2067818-A (GB)
Title: A record player
IPC: G11B3/00
Filed: 1980-10-06
Abstract: The player comprises a turntable rotatable by an electric motor (13), a speaker (24) pivoted towards the turntable by a spring (32), and a tone arm (35) with stylus (41) movable with the speaker against the bias of an arm return spring to engage a record on the turntable. The turntable has a central boss and a reset member (47) rotatably mounted thereon. The reset member and the boss have cam surfaces biased into engagement by a spring (48). An arm (57) on the reset member is engaged and prevented from rotating as the tone arm moves towards the centre of the turntable and the cooperating cam surfaces move the reset member and hence the speaker away from the turntable against the bias of the spring (32) to allow return of the tone arm. The arm engaging means may comprise a lug (58) on the speaker frame (30) or may comprise a further arm which is moved by the tone arm as it moves towards the centre of the turntable. <IMAGE>
Patent GB-2060382-A (GB)
Title: Cardioactive compositions containing theophylline compounds
IPC: A61K31/52
Filed: 1980-10-30
Abstract: Cardioactive inotropic compositions comprise 3-( beta -hydroxy - alpha -methyl-phenethylamino)-3'- methoxy propiophenone or a salt thereof e.g. the L-form hydrochloride, oxyfedrine) and one or more theophylline compounds of formula (I):-   <IMAGE> in which R is hydrogen, methyl, or a C2-C4 alkyl group which may optionally be substituted by one or two hydroxy groups, and optionally a pharmaceutically acceptable excipient or carrier.
Patent GB-2091644-A (GB)
Title: Improvements in typewriters
IPC: B41J32/00
Filed: 1981-01-26
Abstract: A type bar typewriter has a printing ribbon 24 contained in a cassette 20 which has spool housings 32 and 34 on the ends of arms 38 joined by a elongate member 42, the arms 38 and member 42 defining an opening through which the type bars can move without interference. Movement of the ribbon is effected by a one-way drive mechanism, consisting of a belt 100 and a one- way clutch, which rotates a spindle 60 at a take-up spool position. To reverse the direction of movement of the ribbon, the cassette 20 is lifted and turned over, so that the positions of the two spools 50 and 70 are interchanged. This obviates the need for a reversing mechanism in the ribbon drive. <IMAGE>
Patent GB-2071337-A (GB)
Title: Position encoder using bistable magnetic elements
IPC: G01D5/14
Filed: 1981-03-04
Abstract: Induction-type position encoders are described with a coded scale and a reading device responding to the code. Either one bistable magnetic element (2) is displaced relative to a series of magnetic pole-pairs, as in Fig. 2, or a series of bistable magnetic elements (2) is displaced relative to a magnetic direct field 8, 12, 13 possessing at least two sign changes of field strength, as in Fig. 1. In each case, bistable magnetic elements (2) are exposed to spatially alternating magnetic fields which, dependent upon position, can produce an abrupt change of magnetisation in the bistable magnetic element, which induces in sensor windings (3) electrical voltage pulses serving as position signals. Furthermore, a series of bistable magnetic elements (2) can be displaced relative to a series of magnetic pole-pairs, with suitable scale divisions in both series, to provide a vernier scale reading. <IMAGE>
Patent GB-2094141-A (GB)
Title: A letter-plate assembly
IPC: A47G29/126
Filed: 1981-03-05
Abstract: The assembly comprises a sleeve 10 of oblong cross-section defining a slot through which letters may be passed in use of the assembly, a faceplate 13 secured to one end of the sleeve and having an oblong aperture registering with said slot, and a flap 18 hingedly connected to the faceplate, there being provided around the aperture a resilient gasket 30, part of which is trapped between the end of the sleeve 10 and the faceplate 13 and part of which projects beyond the sleeve and faceplate for engagement by the hinged flap 18 when it overlies the aperture. A further hinged flap may be provided at the inside surface of the door and the sleeve may comprise telescopic parts as shown. <IMAGE>
Patent GB-2075472-A (GB)
Title: Wheeled bases for luggage cases
IPC: A45C5/14
Filed: 1981-05-08
Abstract: A wheeled base for a luggage case comprises a pair of clips 1 which fix to a wall of the case in spaced relationship, a wheel-bearing spindle 2 detachably located by the clips 1, and restraining means 11 at a fixed axial position along the length of the spindle 2 which co-operate with one of the clips 1 and restrain the spindle 2 from axial movement in that clip 1, the other clip 1 being engageable with the spindle 2 at various positions along its length in accordance with the width of the luggage case. The spindle 2 may be reducible in length for storing away when not fitted for use. <IMAGE>
Patent GB-2078990-A (GB)
Title: Direct positive silver halide material
IPC: G03C1/485
Filed: 1981-06-17
Abstract: There is described photographic material which comprises a direct positive surface fogged silver halide photographic emulsion wherein the silver halide grains have adsorbed on their surface and/or present in their interior electron traps and wherein the surface fog has been produced by use of a water-soluble gold compound in conjunction with a silver disproportionating ligand of one of the three formulae set forth in the specification.
Patent GB-2086034-A (GB)
Title: Exhausting cooking fumes from hobs
IPC: F24C15/20
Filed: 1981-10-06
Abstract: An exhauster is provided for a cooking range comprising a gas duct 21 extending up an external wall at the back of the cooker, a gas suction port 18 in the upper end of said duct over the cooking range, a baffle plate 20 extending forward over the suction port and the range, and a blower 22 for expelling gases from the gas duct through an exhaust port in the wall. The suction port and an intermediate portion of the gas duct may be of smaller cross sectional area than the blower exhaust port, the relative sizes and the capacity of the blower being chosen so that gases pass from the suction port to the exhaust port in less than 5 seconds. <IMAGE>
Patent GB-2085068-A (GB)
Title: Ball and socket joints
IPC: B63B21/54
Filed: 1981-10-13
Abstract: A coupling is adapted for pivotable connection of two components (20,22) having a seat (21) and a ball (23) respectively. The ball is adapted to be received in the seat while a throat portion (25) connected to the ball may be received within a slot (24) having a width slightly greater than the throat portion (25) but smaller than the diameter of the ball. An opening allowing introduction of the ball (23) into the seat is continuously open and support or stop means (34) are adapted to avoid accidental release of the coupling due to passage of the ball out of the seat until such time as the members are pivoted relative to each other to such a position that said stop means no longer can prevent release of the coupling. <IMAGE>
Patent GB-2087625-A (GB)
Title: Magnetoresistant Transducer
IPC: H01F10/00
Filed: 1981-10-13
Abstract: A magnetoresistant transducer for reading data present on a magnetic carrier comprises at least one magnetoresistant element MRI1 perpendicular to the direction of travel of the data, first and second magnetic screening means MBI1, MBI2 situated at either side of the element, and means MMD1, MMD2 for deflecting the magnetic field generated by the current I flowing through the element and situated between the latter and the first and second screening means. In a transducer having two magnetoresistant elements MRI1, MRI2, each biased by the magnetic field produced by the sensing current I passing through the other element, the screens MBI1, MBI2 would normally be affected by the bias fields to produce "return" fields acting to decrease the bias fields applied to elements MRI2, MRI1 respectively, but the deflecting means MMD1, MMD2 reduce this action.   Each defector may comprise thin magnetic layers LAM alternating with insulating layers LIS of a thickness such that the magnetic coupling between adjacent layer LAM is comparatively small, the easy axes of layers LAM being parallel to those of elements MRI1, MRI2. In an alternative embodiment (Fig. 8, not shown), each deflector and the adjacent screen are combined in an assembly of alternate magnetic and insulating layers, the thickness of the magnetic layer increasing in the direction away from the magnetoresistant elements and the thickness of the insulating layer decreasing in this direction, so that the magnetic coupling between adjacent magnetic layers increases in this direction. <IMAGE>
Patent GB-2088332-A (GB)
Title: Fluid sampling apparatus
IPC: G01N1/20
Filed: 1981-10-16
Abstract: An apparatus and method for withdrawing fluid such as oil from an oil pipeline comprising two collection vessels 14A, 14B, an alternate one of which is at all times connected to the pipeline collecting oil whereby whilst one is collecting oil, the oil in the other collection apparatus is being mixed and then is emptied ready to receive oil. The vessels each have a moving wall, e.g. a ball, to cause the alternate discharge of one vessel as the other vessel is filled. The discharged fluid is fed via a mixer 31 to a sample collector 78. <IMAGE>
Patent GB-2086257-A (GB)
Title: Fluidised gasification reactor
IPC: B01J8/36
Filed: 1981-10-20
Abstract: A fluidized bed reactor for the gasification of coal dust with super- heated water under pressure comprises a reactor vessel (1) having an inlet for water vapour (3) in its base, an inlet (5) and an outlet (6) for maintaining a bed of coal dust, an outlet (11) for product gas, a heating tube coil (10) extending into the bed, and at least one wall (13) located in the bed (14) to impede direct flow of material from the inlet (5) to the outlet (6); the material is thus forced to follow a tortuous route, e.g. as shown by the arrows (15). The wall may be spiral in form. <IMAGE>
Patent GB-2111588-A (GB)
Title: Flexible mountings
Inventor: LOB FRIEDRICH
IPC: B63B35/79
Filed: 1981-11-11
Abstract: A flexible mounting for connecting two components comprises an elastomeric element 1 acting between opposed end members 2, having shank portions 5 (Figure 4), for attachment to the components and connecting means 3 extending between the end members to provide a lost motion, connection therebetween. The connecting means 3 comprises flexible but substantially inextensible material extending between the end members 2 such that the length 8a of the material is greater than the axial distance between the end members 2 thereby allowing relative angular movement between the components within pre-set limits but prevent complete separation of the components in the event of failure of the mounting. The flexible mounting may be used in a mounting for a wind surfer mast 20. <IMAGE>
Patent GB-2254378-A (GB)
Title: Gas turbine engine shroud ring mounting
Inventor: PELLOW TERENCE RALPH
IPC: F01D25/24
Filed: 1981-12-30
Abstract: A turbine suitable for a gas turbine engine is provided with a stage of rotary aerofoil blades (16) surrounded by a shroud ring (26) made of silicon nitride. In order to minimise load transfer between the shroud ring (28) and the turbine casing (13) the shroud ring (26) is radially supported by and radially spaced apart from the turbine casing (13) by a woven wire mesh array (34). <IMAGE>
Patent GB-2118612-A (GB)
Title: Anti-rattle clip
Inventor: BARNETT BARRY ROGER MICHAEL
IPC: F16B5/06
Filed: 1982-04-21
Abstract: A resilient anti-rattle clip formed from a single strip of metal and comprising a generally U-shaped portion formed by a web 11 and two generally flat limbs 12, 13, one of the limbs 12 having a parallel sided slot 14 extending into the limb from the end remote from the web, the other limb 13 having an aperture 18 at least partially overlying the slot in the one limb, and two curved leaf springs 15, 16 connected to the one limb 12 and positioned on opposite sides of the slot, wherein the aperture in the other limb 13 is wider than the slot and terminates short of the end of the other limb which is remote from the web. <IMAGE>
Patent GB-2100984-A (GB)
Title: A veterinary composition containing a veterinary tonic
Inventor: CAHALANE JEREMIAH ANTHONY
IPC: A61K36/515
Filed: 1982-07-02
Abstract: A veterinary composition comprising an alcohol particularly ethyl alcohol to 78% alcohol and between .01 and 20% by volume of a veterinary tonic, particularly, the tonic sold under the trade name "Nux Vomica". Other tonics are Collovet, liquid acetic acid, tincture of ginger, sodium glycerophosphate, Infusion Gentian Co. concentrate, Strong Ammonia and Tincture of Belladonna. One particularly preferred composition comprises ethyl alcohol to 78% alcohol and .05% by volume of Nux Vomica. The composition may be in a form suitable for topical or oral administration and acts as an effective general tonic and is effective as support therapy in the treatment of interic disorders, anorexia, hypothermia, exposure, metabolic disorders and parasitic conditions.
Patent GB-2105702-A (GB)
Title: Fuel cell power plant coolant cleaning system and method
Inventor: GRASSO ALBERT PATRICK
IPC: H01M8/24
Filed: 1981-12-28
Abstract: In a process for deaerating and purifying both the water which is recirculated in a coolant loop through a stack of fuel cells (12) and the make-up water for the coolant loop, a portion of the water from the coolant loop is blown down into a deaerator water reservoir to which make-up water is added as required by the coolant loop. Water is withdrawn from the reservoir, purified, and then introduced into the coolant loop at a rate sufficient to maintain the desired amount of water circulating in the coolant loop. The blowdown provides some of the heat for deaerating the water; and the rate of blowdown flow into the reservoir is sufficient to maintain an acceptable level of impurities in the recirculating coolant loop water. Preferably, the blowdown flow rate is controlled as a function of the amount of make-up water required to be added to the coolant loop.
Patent GB-2109573-A (GB)
Title: Positive-working, radiation- sensitive compositions and elements
Inventor: DEUTSCH ALBERT S
IPC: G03C1/72
Filed: 1982-11-05
Abstract: Positive-acting, radiation- sensitive compositions, for instance for photolithographic plates, which change colour on exposure to radiation comprise a dyestuff and an alkyl ester of o-naphthoquinone-(1 or 2)-diazide-4-sulphonic acid.
Patent GB-2112215-A (GB)
Title: An electric driving motor for delivering a medium acting as an electrolyte
Inventor: BURGER KARL-HEINZ
IPC: H02K7/14
Filed: 1982-11-26
Abstract: A motor 18 for driving a fuel delivery pump, the fuel being an electrolyte is surrounded by a housing 10 through which the medium flows and which thus flushes the motor armature and commutator 26. In order to prevent the commutator part 31, which is in contact with the brushes 29 from being eroded by the fuel, this part is made of carbon. The part for connection to the windings is made of copper. The motor is especially suitable for use with alcohol fuels (M15, M100, E100 etc.), which have high electrical conductivity. <IMAGE>
Patent GB-2121489-A (GB)
Title: Torque converter
Inventor: TAKESHITA SHIGERU
IPC: F16H45/02
Filed: 1983-05-25
Abstract: A torque converter comprising a first shell 22 at an input side; a gear pump connected to the first shell 22; a second shell 49 coaxial to the first shell 10 and having impeller blades 48; and a clutch disposed between the shells 22, 49 and operable to engage when a rotation speed at the input side exceeds a-predetermined idling value. The clutch may comprise radially-movable shoes (53) as shown, or may be a multi-plate clutch actuated by radially-movable wedges. Hydraulically- or electrically-actuated clutches may also be used. The clutch precludes creep when idling. <IMAGE>
Patent GB-2145969-A (GB)
Title: Vehicle body
Inventor: HORLOCK KENNETH BURCE JOHN
IPC: B60P3/32
Filed: 1983-08-04
Abstract: A caravan body has its roof moulded integrally with two of its sides, and the two other sides are each moulded in one piece and joined to the integral roof-and-sides unit. The roof and each of the sides is constructed from a laminate comprising at least one layer of fibreglass reinforced resin, the or each such layer being joined to a layer of thermally insulating material by a composition which comprises a mixture of polyester resin and glass microspheres. The mixture comprises polyester resin and glass microspheres in a ratio between 1:1 and 1:2 by volume, and the thermally insulating material is a rigid layer of foamed polyurethane. The caravan body is self-supporting in that it has no internal stress-bearing framework.
Patent GB-2128916-A (GB)
Title: Impact mechanism for power driven wrench
Inventor: YACOBI MICHAEL S
IPC: B25B21/02
Filed: 1983-10-13
Abstract: An output torque maximizing impact wrench has an anvil 26 and output shaft which are driven about an axis of rotation by the intermittent blows to the anvil of an impactor also rotating about the axis. Impacting surfaces 62 on the impactor and impact receiving surfaces 64 on the anvil are generally parallel the axis of rotation but are sufficiently angularly mismatched upon impact as to meet at an angle "A" having a vertex generally parallel the axis of rotation and to locate the effective impact at portions of said impact receiving surfaces radially extreme from the axis of rotation. The wrench preferably utilises an electric motor capable of operation by a low-voltage (eg 120 volt A.C., 12 volt D.C.) power supply. <IMAGE>
Patent GB-2150250-A (GB)
Title: Rapidly arresting motion in system for a measuring machine
Inventor: DEARDEN JOHN KENNETH
IPC: B23Q15/24
Filed: 1983-11-25
Abstract: A braking system is provided for arresting the movement of a measuring machine probe (11) relative to a body (13) whose dimensions are to be measured. The system includes a drive shaft (14) driven by the relative movement and a clutch (17) operable to connect the drive shaft (14) through a speed-increasing drive train (19-22) to a final shaft (23). A friction brake (24) may be applied to the final shaft (23). Engagement of the clutch (17) when the probe contacts the body causes energy to be dissipated in the drive train, thus arresting the relative movement without damage to the probe. Rotation of a knob (25) attached to the final shaft (23) causes engagement of the clutch (17) so that fine adjustment of the relative position of the probe and body may be effected by the knob. <IMAGE>
Patent GB-2134182-A (GB)
Title: Submersible pumps
Inventor: BURT STEPHEN JOHN
IPC: F04D13/08
Filed: 1983-12-24
Abstract: The pump 23 is connected at its outlet 25 to a hose 26 an is driven by an electric motor 22 supplied by a cable 28, the cable and hose being contained in a flexible impervious sheath 29. When the pump is not in use, it is stored in a housing 10 mounted in the wall of a caravan. In order to pump water into the caravan through an inlet pipe 53, a closure member 17 is opened to withdraw the pump and flexible sheath from the housing. In a modification, a replaceable filter is mounted on the housing and may be inspected through a window to show when the filter needs changing. <IMAGE>
Patent GB-2145569-A (GB)
Title: Reflector antenna
Inventor: SATO HIDEO
IPC: H01Q19/02
Filed: 1984-04-02
Abstract: A reflector antenna such as a Cassegrain or Parabolic antenna which is intended for use in the microwave or millimeter wavebands has a supporting post or strut 4 which supports a component of the antenna and is located in the plane wave produced by the main reflector 1. The plane wave is therefore scattered and in order to improve the performance of the antenna the surface of the strut is modified so as to cause random scatter of the primary wave so that the field strength of the scattered waves is reduced. As shown the front of the strut comprises a triangular member. <IMAGE>
Patent GB-2144529-A (GB)
Title: Method of and plant for burning or roasting fine-grained material
Inventor: HERCHENBACH HORST
IPC: C04B7/44
Filed: 1984-07-27
Abstract: In a method of burning or roasting fine-grained material, the material is thermally pretreated, in a preheating zone, in separate substantially parallel streams of material, in separate preheating lines, (A, B) then burnt to clinker in a clinker zone (2) and this is cooled in a cooling zone, wherein the stream of waste gas from the clinker zone flows through one of the preheating lines (A) and the stream of reaction gas from a calcining zone (13) charged with hot spent air (15) from the cooling zone, fuel and material substantially flows through the other preheating line (B). The stream of material preheated in the stream of waste gas from the clinker zone is divided, in the region of the preheating zone, into two component streams (21, 22) of which one component stream (21) is conveyed back into the stream of waste gas from the clinker zone (2) and the other component stream (22) is introduced into the calcining zone (13) of the parallel stream of material. <IMAGE>
Patent GB-2164293-A (GB)
Title: Import resistant fuel tanks
Inventor: EASTWOOD MARK
IPC: B64D37/02
Filed: 1984-08-31
Abstract: A tank having a wall construction comprising an inner layer of aluminium, a second layer of epoxy resin, a third layer of glass fibre reinforced polyester resin, a fourth layer of kevlar fibre reinforced plastic material, an outer layer of glass fibre reinforced polyester resin and an outermost coating of a fire retardant material. The interior of the tank is filled with a lattice like material for preventing liquid stored within the tank from forming a mist, if the tank should be erupted.
Patent GB-2155133-A (GB)
Title: Load-bearing split ring with different depth slots
Inventor: OWENS JAMES H
IPC: F16L37/00
Filed: 1984-09-07
Abstract: A load-bearing split circular ring (10) used, for example, in coupling together underwater well equipment and has a plurality of radial slots (14-22) of different depths. The ring remains substantially circular when experiencing radially inward or outward displacement under a substantially uniformly applied load by uniformly distributing the bending moment stress applied thereto. The radial slots are inwardly or outwardly opening (see Figure 4), and the ring has a uniform axial thickness b and a uniform radial cross section. <IMAGE>
Patent GB-2146527-A (GB)
Title: Use of benzothiophene derivatives as antiasthmatic agents
Inventor: HO PETER PECK KOH
IPC: C07D333/70
Filed: 1984-09-12
Abstract: This invention provides for pharmaceutical formulations of certain benzothiophene derivatives and a method of using the derivatives or formulations for the treatment of asthma.