baber/WOPTO huggingface dataset:
Patent GB-2053415-A (GB)
Title: Resilient Shaft Coupling
IPC: F16D3/64
Filed: 1980-06-17
Abstract: Coupling halves (12, 14) comprise plane oblique surfaces (16 and 24), 18 and 26, 20 and 28) which delimit intermediate spaces (34) which open, in wedge-like formation, in the radial direction. Sliding elements (42, 44, 46) are arranged in the spaces (34) and comprise plane sliding surfaces (52, 54, 56, 58, 60, 62) lying with surface- to-surface contact on the oblique surfaces (16, 24, 18, 26, 20, 28) and held in contact by a surrounding, resiliently deformable holding ring (98). When torque is applied the coupling halves (12, 14) turn relative to each other, the intermediate spaces (34) become narrower, and press the sliding elements (42, 44, 46) outwards to deform the holding ring (98) to non-circular shape. The oblique surfaces and/or the sliding surfaces (52, 54, 56, 58, 60, 62) are arranged on hemispherical compensating elements (74, 76, 78, 82, 84, 86), mounted in bearing sockets (96) in the coupling halves (12, 14) and/or in the sliding elements (42, 44, 46) in such a way as to be pivotable in all directions to ensure that the associated surfaces remain in complete mutual contact when the opening angle of the spaces (34) is altered. <IMAGE>
Patent GB-2077634-A (GB)
Title: Method of manufacturing large area accumulator plates and a tool for performing the method
IPC: B21D13/02
Filed: 1980-06-17
Abstract: A method and apparatus for forming accumulator plates is described. Lead strips (24) is fed between a pair of dies having opposed grooved faces which squeeze the strip and deform it to produce a grooved profile (28). The dies are heated so as to raise the temperature of the lead strip to approximately 200 DEG C. A stamping-out, cutting operation is then performed on the strip to define a plate (26) with a lug and cell connections. The dies and stamping/cutting- out tool may be mounted between separate pairs of upper and lower press members or may be mounted between a single pair of such members. <IMAGE>
Patent GB-2057953-A (GB)
Title: Improvements in or relating to shearing
IPC: B23D23/04
Filed: 1980-09-03
Abstract: In a method of shearing a workpiece, for example a metal billet or bar (6), and apparatus for carrying out that method, before being subjected to linear shear, the billet is first subjected to substantial torque about an axis (12) perpendicular to the plane of shear. The billet is held by two pivoting arms (9 and 14), the predominant torque of the first stage of the method is achieved by allowing the pivot points of the arms (39 and 38) to slide as the arms turn, and the predominant shear of the second stage is then achieved by arresting (54). The parts of the arms (8 and 13) which grip the workpiece may bear against a fixed surface (36) during the whole operation, so holding the axis of the workpiece to a constant location. <IMAGE>
Patent GB-2061032-A (GB)
Title: Full wave frequency converter
IPC: H02M5/27
Filed: 1980-09-12
Abstract: A three-phase full wave bridge type rectifier (42) utilizing silicon controlled rectifiers (52-62) is connected to receive a three-phase input electrical signal and a switching network utilizing four silicon controlled rectifiers (82-88) is connected to receive and gate full wave rectified three-phase signals from the three-phase rectifier to provide desired positive and negative output signals. A transformer (50) having a single primary winding or multiple separate windings connected in parallel or series receives the output of the switching network, and a timing unit (46) is provided for timing the rectifier and switching network in synchronism to produce alternate positive and negative full wave rectified three-phase signals at a selected frequency from the three- phase electrical energy input and gate them to the transformer primary. <IMAGE>
Patent GB-2084793-A (GB)
Title: Method of fabricating solar cell modules
IPC: H01L31/048
Filed: 1980-09-22
Abstract: A solar cell module is fabricated by placing an array of electrically- interconnected solar cells (1) in a mold (8) having a bottom surface, an entry port (15) and an exit port (16). A light-transparent superstrate (5) effectively serves as the top for the mold (8) and is placed over the array of solar cells (1) in the mold (8). The superstrate (5) is spaced from the array such that the superstrate (5) does not come in contact with the top surface of any of the cells (1) or interconnectors of the solar cell array. Clamp means (9) are provided to hold the superstrate (5) in position while encapsulant is pumped into the mold under pressure through the inlet port (15) in an amount sufficient to fill the mold (8). Thereafter the assembly can be placed in an oven and heated for a time sufficient to cure the encapsulant and bond the materials to each other. <IMAGE>
Patent GB-2084687-A (GB)
Title: Ball screws
IPC: F16H25/22
Filed: 1980-09-24
Abstract: A ball screw comprises a screw with a plurality of helical grooves, a nut with a corresponding number of helical grooves, and a plurality of balls engaged in the co-operating grooves of the nut and bolt. The diameter of the grooves and of the balls is equivalent to a standard diameter specified for a pitch distance of an equivalent single groove having a pitch equal to the pitch spacing between adjacent grooves of the plurality of grooves. This arrangement permits reduced groove size and prevents excessive weakening of the screw especially when small diameter bolts are used with large pitch grooves. The relationship between the groove pitch P and number of grooves n is B = P/nr where r is from 1.4 to 1.8.
Patent GB-2061233-A (GB)
Title: Web product handling method and apparatus
IPC: B65H39/16
Filed: 1980-10-10
Abstract: A web unit handling method and apparatus wherein a plurality of web units are separately advanced along a plurality of delivery paths which are aligned along a lineal collection path, each web unit being transferred into the collection path and thereafter being advanced therein in synchronism with the other web units being transferred into the path.
Patent GB-2062470-A (GB)
Title: Spirometers
IPC: A61B5/097
Filed: 1980-10-21
Abstract: A mouthpiece for the inlet tube of a spirometer is formed to engage the inlet end of the tube and has a radially extending part or parts for preventing reverse fitting. An apertured valve seating has a valve diaphragm of flexible material for obstructing the return flow of air to the patient's mouth. The seating may have a projecting rim for engagement with the peripheral region of the diaphragm, and the diaphragm is preferably mounted so that it is planar on first engagement therewith. A ring may be arranged to be contacted by the diaphragm after initial bulging by back-pressure. Further deformation of the diaphragm is thereby controlled so that its peripheral region remains in engagement with the rim. <IMAGE>
Patent GB-2065969-A (GB)
Title: Thermoelectric Temperature Measurement
IPC: G01K13/02
Filed: 1980-12-03
Abstract: The measuring of temperature or the detecting of changes in temperature is achieved by using components (18, 16 or 16, 24 or 18, 16, 24) of dissimilar metals to form a thermoelectric junction (22 or 28 or 22, 28 combined, respectively). The components have leads (40, 38, 36) of materials of compatible thermoelectric properties, which leads are used to form a circuit with the components and a device responsive to current flow in the circuit in dependence upon the temperature difference between the junction formed by the components and a second junction (which may be at a reference temperature). During said measurement or detection, the components are subject to another operation or perform a further function; for example, the components are a transition assembly in a heat exchanger. <IMAGE>
Patent GB-2068094-A (GB)
Title: Indirect heat transfer for a pressure fluidized bed boiler
IPC: F22B31/00
Filed: 1981-01-15
Abstract: A fluidized bed combustion system comprising a fluidized bed (8) in a pressure vessel 10, a supply and a discharge conduit for fluid (e.g. water), a steam generator (9) wherein the fluid is converted through heating into vapour (e.g. steam) and an intermediate coolant circuit which transfers heat from the fluidized bed to the steam generator (9) there being provided means (6) for circulating a cooling fluid (e.g. helium, air or liquid metal) through the intermediate loop. When air is used a pressure balance conduit (7) may be incorporated and the coolant circuit may comprise a conduit 14 whereby the generator (9) may be by-passed. The coolant circuit enables the temperature of the fluidised bed to be maintained at a desired value with varying boiler load. <IMAGE>
Patent GB-2069488-A (GB)
Title: Herbicidal tetrahydrofuran derivatives
IPC: C07D307/14
Filed: 1981-01-19
Abstract: Compounds of the general formula   <IMAGE> wherein each of R<1> and R<2> independently represents a hydrogen atom or an optionally substituted alkyl, cycloalkyl or aryl group, or R<1> and R<2> together represent an optionally substituted alkylene group; each of X and Y independently represents one of the groups CR<6>R<7>, C=O, C=N-Z, CH-NH2,   <IMAGE> in which n is 2 or 3; R<6> represents a hydrogen atom, an optionally substituted alkyl or aryl group or a group of formula -OA in which A represents a hydrogen atom, a heterocyclyl group, an acyl group derived from a carboxylic or a substituted carbamic acid, or a group CR<10> R<11> R<12>; R<7> represents a hydrogen atom or an optionally substituted alkyl or aryl group; Z represents a hydroxy, alkoxy, acyloxy, amino, alkylamino or dialkylamino group; R<3> represents a hydrogen atom or an optionally substituted alkyl group; each of R<4> and R<5> independently represents a hydrogen atom or an optionally substituted alkyl group; each of R<8> and R<9> independently represents a hydrogen atom, an alkyl group or an aryl group; each of R<10> and R<11> independently represents a hydrogen atom or an alkyl group; R<12> represents an alkoxyalkoxy group, a heterocyclyl group, an alkoxycarbonyl group, an optionally substituted aryl group, an alkylthio group or a substituted carboxamido group; and Ar represents an optionally substituted fully unsaturated ring having 5 or 6 atoms in the ring of which one is a nitrogen atom and the remainder are carbon atoms, or the N- oxide or an acid addition salt thereof, or Ar represents an optionally substituted phenyl group; with the proviso that if both X and Y represent groups CR<6>R<7>, at least one substituent R<6> is a group -OA; exhibit useful herbicidal activity.
Patent GB-2068215-A (GB)
Title: Improvements in shelf units
IPC: B65G1/14
Filed: 1981-01-28
Abstract: Shelf brackets 5 are pivotally secured to a frame 1 for rotation between an "in use" (horizontal) position and a "stowed" (vertical) position, the rotation being effected by downward movement of a bar 9, whereby abutments on the bar successively engage the rear ends of the brackets. According to the invention, the sliding bar 9 has two rows of dogs 10 and 11 and the shelf supports are provided on their shorter arms 6, with a notch 13 in the area of the front dogs 10, and the back part of the shorter arms 6 are formed with inclined bearing surfaces 15. <IMAGE>
Patent GB-2084600-A (GB)
Title: Sealing Compositions
IPC: C08K3/40
Filed: 1981-02-02
Abstract: Glass beads having a particle size of 1 to 200 microns are included as part or all of the filler in a sealing composition suitable for sealing container ends and which is made by dispersing a filler in a latex of a styrene butadiene or other rubbery polymer, optionally also containing a tackifying resin.
Patent GB-2073509-A (GB)
Title: A plug and socket connection for ignition distributors
IPC: H01R13/74
Filed: 1981-04-02
Abstract: A plug and socket connection has a plug receiver (17) made of insulating material which can be inserted in an aperture (13 figure 1, not shown) in a distributor housing (10) and is secured in the functional position by an element (28). A plug 22 of insulating material which can be plugged into the plug receiver (17) accommodates plug tongues (32) provided with attached conductors (33) in respective chambers (23). The contact tongues (32) project into a recess (21) in the plug receiver (17) for connection to a socket (36, figure 2, not shown). <IMAGE>
Patent GB-2079378-A (GB)
Title: Hydraulic tipping apparatus for tipping the driving cabs of lorries
IPC: B62D33/067
Filed: 1981-06-15
Abstract: A hydraulic tipping apparatus for tipping the driving cabs of lorries from tipped to non-tipped positions comprises a pump (at 10), a pressure fluid tank (at 7), a double-acting piston/cylinder unit (2/1) wherein the piston rod (3) and cylinder (1) are respectively connected to the driving cab and the chassis frame structure. In the bottom dead-centre position of the piston (2), the two cylinder chambers (4, 5) are connected together by way of a conduit (11). The lower cylinder chamber (4) which is connected to the first pressure fluid conduit (6, 7) is connected to the pressure fluid tank by way of a valve (16) which is opened by the piston (2) after passing over the port (12), and an orifice (24'). A conduit check valve (15) which opens towards the lower cylinder (4) is disposed in the connecting conduit (11). <IMAGE>
Patent GB-2089769-A (GB)
Title: Tamper-indicating package for tools
IPC: B25H3/00
Filed: 1981-10-13
Abstract: A package for tools such as drill bits comprises socket means (6a) for holding said tools and a cover (2) which, like the socket means, is pivoted to a case (1). The cover (2) is initially locked to the case (1) by locking means which must be broken by the user to allow opening of the cover for access to the tools. The locking means may comprise a plug inserted through holes (10, 11). <IMAGE>
Patent GB-2088014-A (GB)
Title: Lagging Pipes
IPC: F16L59/22
Filed: 1981-11-05
Abstract: A method and apparatus for lagging pipework comprises introducing a thermally intumescent material such as sodium silicate into spaces 22 between conventionally lagged regions 18, 20, and heating the intumescent material. The intumescent material swells to fill the spaces. The invention also includes a kit of parts for use in the method, the kit comprising semi-annular wedges of lagging material and flat annular gaskets of sodium silicate intumescent material for use in lagging pipe bends, which are difficult to lag effectively using conventional straight sections of lagging. <IMAGE>
Patent GB-2090776-A (GB)
Title: A drill chuck
IPC: B23B31/12
Filed: 1981-12-23
Abstract: The drill chuck comprises clamping jaws 7 movable axially relative to a drill chuck body by a rotatable body 4 and a screw member 8, the clamping jaws being guided between a coned bush 1 and a guide member 2 which is provided with guides for the clamping jaws and is formed by at least one, e.g. three, correspondingly shaped metal sheet part 2'. The part(s) provides lateral surfaces acting as the guides. The part(s) has an external surface corresponding to the coned bore of the bush. The rear of the part(s) comprises a cylindrical portion clamped between bush and a support. The jaws are of T-section, mating with corresponding surfaces of the guide part(s). <IMAGE>
Patent GB-2098805-A (GB)
Title: Multiple unit electromagnetic assembly
IPC: H01F7/16
Filed: 1982-03-29
Abstract: An electromagnet assembly comprises a plurality of magnetic circuits (3, 4) combined as a unit in a single housing (2). The housing (2) and coil carriers (11, 12, 13, 14) are either manufactured integrally from sintered material or they comprise a single profiled body. Each magnetic circuit comprises the coil carriers (11-14), yokes (11'-14'), base plates (11''-14'') and sliding armatures (15-18) having valve-actuating push rods (25-28). <IMAGE>
Patent GB-2118485-A (GB)
Title: A communication medium
Inventor: LAURESTON PHILIP
IPC: B42D15/04
Filed: 1982-04-22
Abstract: A communication medium, serving purposes similar to conventional greeting cards or the like, is made of ceramic material or glass and has two mutually angled webs which may either be integral or hinged together. If the latter, the hinge or hinges may be attached to a metal frame surrounding at least one of the webs.
Patent GB-2121740-A (GB)
Title: Cycle seat
Inventor: SWARBRICK ALAN
IPC: B62J1/00
Filed: 1982-06-03
Abstract: Two substantially semi-circular half-seats 10, 11 are supported upon respective limbs 17, 18 of a forked cycle seat support 19 so as to be separated by a gap 12. The half seats 10, 11 serve separately to support the two buttocks of a cyclist so that the weight of the cyclist is transmitted over a relatively large area, and the seat thereby being more comfortable than previously known seats. The half-seats 10, 11 may be separately adjustable with respect to height and angle. In another embodiment similar buttock- supporting part seats are connected by a central seat region which is lower than the plane of the part seats. <IMAGE>
Patent GB-2104280-A (GB)
Title: Battery plate assembling and stacking apparatus
Inventor: FAHLE RICHARD M
IPC: H01M10/14
Filed: 1982-06-11
Abstract: In a method and apparatus for alternately stacking finite numbers of n+1 negative battery plates 12 and n positive battery plates 14 a negative battery plate 12 is provided at both the top and bottom ends of the stack 16. The apparatus 10 includes a pair of stacking stations 18, 20 arranged in a side-by-side manner, a transfer device 22 for dropping negative plates 12 at an assembling point 24, and a moving conveyor belt 26 for transporting positive plates 14 to the assembling point 24 and interposing a single positive plate 14 between each of the negative plates 12 at the assembling point 24. The alternately arranged positive and negative plates 14, 12 are continuously fed first to one stacking station 18 or 20 and then to the other stacking station 20 or 18. In order to provide a negative plate 12 at both the top and bottom ends of the resulting stacks 16, two negative plates 12 are dropped at the assembling point 24 whenever the required number of positive plates 14 for a stack 16 has passed the assembling point 24. One of the negative plates 12 is directed to one stacking station 18 or 20 and the other negative plate 12 is directed to the other stacking station 20 or 18. Thus, the resulting stacked group 16 of negative and positive plates 12, 14 is provided with a negative plate 12 at both the top and bottom of the stack 16. The resulting stacked groups 16 of negative and positive plates 12, 14 are then removed from their respective stacking stations 18 and 20 by take-off conveyors 28 and 28a. <IMAGE>
Patent GB-2131532-A (GB)
Title: Pressuriser in refrigeration circuit
Inventor: DATTA PRITHVI RAJ
IPC: F25B1/10
Filed: 1982-08-23
Abstract: In a compression, condensation refrigeration circuit a refrigerant pressuriser comprises two, three or more chambers (7, 8 and 9), the first of which (7) has an inlet (10) from a mechanical compressor. An outlet (11) from the first chamber (7) passes by way of a non-return valve (12) and a heat exchange tube (13) to the second chamber (8). An outlet (14) from the second chamber (8) is closed by a non-return valve (15) which is also set not to allow outlet from the second chamber until a predetermined pressure is reached. The second chamber (8) is similarly connected to the third chamber (9), the outlet (17) from which is closed by a third non- return valve (18) which is set to allow forward flow when the pressure in the third chamber (9) has reached a still higher predetermined level. The chambers are all surrounded by a jacket (3) containing coolant to de- superheat the vapour in each chamber. <IMAGE>
Patent GB-2110440-A (GB)
Title: Fetch prediction state machine for 6809 microprocessor
Inventor: BOGARDUS DAVID WILLIAM
IPC: G06F11/25
Filed: 1982-08-25
Abstract: A fetch prediction state machine predicts fetches of opcodes in a sequence of 6809 microprocessor instructions. The state machine passively monitors a data bus, and includes an instruction-cycle decoder 34 to determine the number of clock cycles until the next opcode fetch, and one or more counters 36, 38 which are incremented in turn to their terminal values, where-upon a fetch line is asserted. The state machine is particularly useful in the personality module of a logic analyzer to permit data qualification on fetches so that the proper data can be stored in acquisition memory. <IMAGE>
Patent GB-2126440-A (GB)
Title: Electrical energy saving device for motors
Inventor: CHANG TEN-HO
IPC: H02P23/00
Filed: 1982-09-01
Abstract: A motor control device comprises a principal circuit system, e.g. a triac with a control circuit system. The principal circuit system includes an input power source, a current-monitoring transducer unit, a motor load, and a triggering device while the control circuit system comprises a signal amplifying unit, a feed-back unit, a firing angle adjusting and indicating unit, a rectifying and filtering unit, a photoelectric coupling unit, an overload protecting unit, and a delay protecting unit. The control circuit system can automatically detect the load state thereof and develop a signal through the system to adjust the firing angle so that proper magnitude of the input voltage is fed to the motor in accordance with different load states; thereby, electrical energy is reduced and the power factor improved. A relay may short circuit the triac under low and excess current conditions. <IMAGE>
Patent GB-2118308-A (GB)
Title: Method of measuring and indicating fluid levels
Inventor: TWARD EMANUEL
IPC: G01F23/26
Filed: 1983-01-27
Abstract: The level or volume of a fluid within a fluid storage vessel is measured by providing a multi-capacitor type fluid level sensor (10) formed of a pair of capacitors (defined by plates 18, 19 and 16, 17) of fixed and substantially like capacitive value and two variable capacitors (defined by plates 16, 19 and 17, 18) having like open dielectric spaces for receiving varying levels of the fluid within the vessel; connecting the four capacitors of the sensor together to form the four capacitive sides of a Wheatstone bridge circuit; applying a source of alternating constant voltage and set frequency across the bridge circuit to a first set of bridge terminals sensor; interrogating the bridge circuit through a detection circuit connected across the bridge to a second set of bridge terminals independent of said first set of terminals measuring the current value in the detection circuit and indicating the value as a fluid level or fluid volume in direct linear relationship with the current value. The method may be used for volume measurement with respect to a wide variety of multi-component systems (including liquid/liquid, liquid/gas, liquid/solid, solid/gas, etc.) as long as the dielectric constants for the two or more components are different. <IMAGE>
Patent GB-2119810-A (GB)
Title: UV and thermally curable, thermoplastic-containing compositions
Inventor: MORGAN CHARLES ROBERT
IPC: C09D4/06
Filed: 1983-04-15
Abstract: A UV and thermally curable composition comprises     (1)   (a) a liquid, ethylenically unsaturated monomer, oligomer or prepolymer of the formula:   <IMAGE>  wherein R is H or CH3, R1 is an organic moiety and n is at least 2,   (b) an epoxy resin containing at least 2   <IMAGE> groups, or   (c) a mixture of (a) and (b);     (2) a thermal initiator,   (3) a photoinitiator, and   (4) a thermoplastic material.   Exposure of the composition to UV radiation and heat in seriatim results in a cured solid product which can be utilized as adhesives, coatings, gaskets, sealants, resists and the like.
Patent GB-2128817-A (GB)
Title: Improvements in or relating to ignition coils
Inventor: STEHLE ANTON
IPC: F02P9/00
Filed: 1983-04-29
Abstract: An ignition coil for an internal combustion engine comprises primary and secondary windings 7,12 made from copper. The primary winding 7 is modified by a part 7a so as to have a temperature coefficient of resistance higher than that of a copper whereby a current value adequate for an effective efficient ignition spark can be obtained in the primary winding at low temperature and with a reduced supply voltage. <IMAGE>