baber/WOPTO huggingface dataset:
Patent GB-2072616-A (GB)
Title: Mounting device for a mobile crane
IPC: B66F9/06
Filed: 1981-03-19
Abstract: A mounting device for attachment to one end of the jib (1) of a mobile crane, which jib (1) is pivotal in a substantially vertical direction and rotatable about a substantially vertical axis, comprises an L-shaped carrier (4) one leg of which is fastened to the end of the jib (1) and the other leg (5) of which has a carrying frame (7) mounted thereon to be pivotal about a horizontal axis (6) located at the free end of said other leg (5). The carrying frame (7) is pivotal on the carrier (4) to provide a stable horizontal platform in any inclined position of the jib (1). <IMAGE>
Patent GB-2074808-A (GB)
Title: Missile-guidance system
IPC: F41G7/26
Filed: 1981-04-13
Abstract: A missile-guidance beam is produced at a transmitter -   (a) firstly by interrupting a continuously transmitted light beam by a constantly rotating apertured disc, Figure 3, and (b) secondly by inserting into the beam in synchronism with the rotation of the disc, short bursts of higher frequency light, whereby the signal, Figure 4, received by a single detector on the missile represents -   (a) by the mark/space ratio of the received constant frequency pulse train, the extent of the deviation of the missile from the central axis of the beam, and (b) by the phase of the short burst of higher frequency, the extent of the angular deviation around the central axis of the beam (i.e., measured in a plane normal to the axis of the beam) from a datum position.   <IMAGE>
Patent GB-2097040-A (GB)
Title: Mining equipment
IPC: E21C29/04
Filed: 1981-04-16
Abstract: Mining equipment for controlling tension in an elongate chain extending along a longwall face in an underground mine comprises hydraulic rotary drive means (30) and control means (79) for controlling the supply of pressure fluid to the drive means. The drive means is able to apply tension to the chain and also is able to sense chain tension. The control means comprises valve means 84 which in one operational condition exhausts the supply of pressure fluid if the sensed chain tension reaches a preselected high value and which in another operational condition maintains the supply of pressure fluid at substantially a preselected pressure if the sensed chain tension is below the preselected high value. <IMAGE>
Patent GB-2097047-A (GB)
Title: Drip channel for doors for shower enclosures
IPC: A47K3/36
Filed: 1981-04-22
Abstract: A door for a shower enclosure has a drip member 40 attached to the inner face of the door 18. The drip member has a downwardly sloping web 44 with an upturned bead to define a shallow channel, and is inclined to the horizontal so that residual water running from the door when it is opened outwards flows along the channel to the interior of the shower enclosure. The drip member may be of extruded aluminium and fixed to a frame member 22 of the door by screws. The drip member can be fixed at either end of the door, to enable the door to be inverted to change the hand of the door. <IMAGE>
Patent GB-2077874-A (GB)
Title: Pleated recoverable material
IPC: F16L47/00
Filed: 1981-06-11
Abstract: Recoverability is induced into a material by a first expansion which is unidirectional but uniform, and then by a second expansion which produces pleats, and may increase in extent across the surface of the material. The material can be used to form pipe branch-offs, pipe bends or used as a tape for sealing pipe branch-offs or splice cases. A material for producing a branch-off comprises a first portion 1, and a second portion 2 which has been differentially expanded by pleating. The material is wrapped-around to form a tube; the portion 2 splays out to form a collar which can overly a hole in a main conduit, the portion 1 serving as a branch-off conduit.
Patent GB-2080800-A (GB)
Title: Substituted urea herbicides
IPC: C07C275/30
Filed: 1981-07-17
Abstract: Compounds of the general formula   <IMAGE>  wherein R represents a hydrogen atom, a hydroxyl group or a   <IMAGE> R<1> is a hydrogen atom or a   <IMAGE> R<2> represents a hydrogen atom or an alkyl group and n is zero or one with the proviso that both of R and R<1> are not simultaneously a hydrogen atom or a   <IMAGE> and that R is not a hydroxyl group when R<1> is a   <IMAGE> their use as herbicides and herbicidal compositions containing them.
Patent GB-2081728-A (GB)
Title: Olefine polymerisation catalysts
IPC: C08F12/06
Filed: 1981-08-11
Abstract: A transition metal compound and a metal halide compound are chemically combined to form a composition of matter. The composition of matter is rapidly mixed with a precipitating agent to form an active olefin polymerization catalyst under an olefin atmosphere and prepolymer is formed on said catalyst to yield a catalyst capable of producing low fines content polymer.
Patent GB-2082698-A (GB)
Title: Torque limiting coupling
IPC: B65G13/075
Filed: 1981-08-24
Abstract: A torque limiting coupling for transmitting torque between a tubular member 10 and a shaft 16 is provided which is particularly suited for use as a conveyor roller. The shaft 16 extends axially through the tubular member 10 and is rotatably mounted in the tubular member at each end by a bearing assembly 18, 20. An annular retainer 30 is mounted between the shaft 16 and the inner bore of the tubular member 10 and has three radial openings 36 formed through it. A resilient member 38 having a circular outer periphery is positioned in at least one and preferably in each radial opening 36 in the retainer 30 so that the retainer 30 maintains the resilient members 38 in a circumferentially spaced apart relationship. The diameter of said resilient member 38 is greater than the distance between at least a portion of the outer periphery of the shaft 16 and the inner bore of the tubular member 10 so that torque can be transmitted between the shaft 16 and tubular member 10. The resilient members 38, however, are sufficiently diametrically compressible to enable the shaft 16 to rotate with respect to the tubular member 10 when the torque between the shaft 16 and tubular member 10 exceeds a predetermined amount. Two or more retainers 30 can be used with a single coupling to increase the torque drive for the coupling. <IMAGE>
Patent GB-2086490-A (GB)
Title: Liquid fuel injection pumping apparatus
IPC: F02M41/14
Filed: 1981-09-15
Abstract: A liquid fuel injection pumping apparatus has a pair of plungers 63 housed within bores formed in a rotary distributor member 28. A cam ring has cam lobes positioned to effect inward movement of the plungers through rollers 62 and stop surfaces 64, 65 are provided to limit the extent of outward movement of the plungers to control the amount of fuel supplied by the apparatus. The stop surfaces have different radial positions so that one roller will project more than the other or others whereby the plunger associated with that roller will be moved inwardly before the other plunger or plungers. <IMAGE>
Patent GB-2086178-A (GB)
Title: Transcoding circuit
IPC: H04N11/20
Filed: 1981-10-02
Abstract: A transcoding circuit (3) converts a S.E.C.A.M-colour synchronising signal into a first PAL quadrature component having a constant phase (output 121) and a second PAL quadrature component having a phase which changes from line to line (output 125) and is suitable for use with a demodulation circuit (75) in which a divider circuit (99) divides the frequency of an oscillator signal (output 91) by two. A divider circuit (53) is used and a circuit (45, 189, 165, 199, 171, 205) generates a colour synchronising signal which is produced at the output (125) for the second quadrature component during every other line flyback period only, while two emitter followers (63, 65) whose bases are connected to a system selector signal (output 19) are connected to two phase-control signal terminals (67, 69) while a difference- producing circuit (61) in the collector circuit of the emitter followers (63, 65) is connected to a stop signal input (57) of the divider circuit (53) in order to make this circuit operate in the correct phase. <IMAGE>
Patent GB-2088026-A (GB)
Title: A valve
IPC: F16K41/10
Filed: 1981-11-05
Abstract: The valve (10) comprises a housing (12) having an open-ended portion (14) of circular internal cross-section, an inlet port and an outlet port, the ports being interconnected by a flow space (16). An obturator (20) is located within the flow space (16) and attached to a movable head (18) such that fluid flow through the valve (10) may be regulated by the obturator (20) by movement of the head (18). The head (18) retains a seal (30) which bears upon the inner surface of the portion (14) of the housing (12) so as to resist fluid flow past the head (18). 
<??>Preferred features include the provision of biasing means which maintain the seal (30) in a state of compression and a seal (30) which has the form of a hollow open-ended cylinder in which the hollow is frusto conical in shape. A bellows (24) connecting the head (18) to the housing (12) and/or a seal (28) provided on the head (18) and bearing against an external cover (26) to provide secondary seals against leakage from the flow space (16). 
<??>Included is the provision of a leak detector (64), a readily dismantable valve and a specialised form of obturator (20).
Patent GB-2111435-A (GB)
Title: Printing cheques
Inventor: HANINGTON ARTHUR EDWARD
IPC: B41J1/32
Filed: 1981-12-14
Abstract: A method and high speed printing drum for printing cheques for individual bank customers from blank stock to contain magnetic coding information personal to that customer's account, the branch at which he banks and the bank and the cheque number; and also to include readable information including his name and the name of his branch in alpha-numeric characters and symbolic language characters, the symbolic language characters e.g. chinese identifying the branch being provided as discrete groups at selected positions on the drum containing additionally the alpha- numeric characters whereby each group of symbolic characters corresponding to an individual branch name are printed simultaneously. The invention enables the printing of alpha-numeric characters and symbolic language characters to be printed from the same printing drum. <IMAGE>
Patent GB-2094730-A (GB)
Title: Power-assisted steering device
IPC: B62D5/00
Filed: 1982-03-09
Abstract: A power-assisted steering device for a motor vehicle comprises an auxiliary drive (16) and two friction clutches, the input elements (70, 71) of which are driven by the auxiliary drive (16) in opposite directions. The friction clutches each have at least one output element (66) which may be coupled with one or other input element (70, 71). The two clutches are disk clutches so that the available friction surfaces (67, 72) are planar and their elements (66, 70, 71) are axially displaceable relative to each other. <IMAGE>
Patent GB-2121115-A (GB)
Title: Aerofoil vane assembly
Inventor: MONAGHAN WILLIAM THOMAS
IPC: F01D9/04
Filed: 1982-06-03
Abstract: The assembly consists of radially inner and outer members 23 and 24 having tensioned radially extending spokes 25 therebetween; the aerofoil vanes each being formed in two parts 26 and 27 (Fig. 5 not shown) each pair of which are located and secured about pairs of spokes 25. <IMAGE>
Patent GB-2100734-A (GB)
Title: New organic compounds processes for their production and their use
Inventor: HAMBERGER HELMUT
IPC: A61P31/04
Filed: 1982-06-25
Abstract: Compounds of formula I   <IMAGE>  wherein,    R1 represents 2-aminothiazol-4-yl or 1H-pyrazol-3-yl, R2 represents hydrogen, alkyl, carboxyalkyl, alkoxycarbonylalkyl, hydroxyalkyl, cyanoalkyl or carbamoylalkyl, R3 represents hydrogen, pivaloyloxymethyl, an easily removable ester group or a cation, and R4 represents optionally substituted aminotetrazolyl and salts thereof. These compounds can be used as chemotherapeuticals, particularly as anti-bacterially active antibiotics.
Patent GB-2101943-A (GB)
Title: Toe clips for bicycles
Inventor: GARBETT BRIAN GEOFFREY
IPC: B62M3/08
Filed: 1982-07-06
Abstract: The clip is shaped and dimensioned to reduce drag when in use on a pedal 26 without the provision of one or more individually formed fairings, and comprises a mounting portion 11 to be attached to the front 25 of a pedal and at least one fairing portion 20, 21 extending upwardly from a lower part of the mounting portion and forwardly thereof when the mounting portion is attached to a pedal in overlapping relationship with said front, whereby to reduce drag in the region of the mounting portion 11 and the front 25 of the pedal. <IMAGE>
Patent GB-2105370-A (GB)
Title: Electrodeposition of tin/lead alloys
Inventor: MAYER LINDA JEAN
IPC: C25D3/60
Filed: 1982-09-07
Abstract: Improved electroplating bath for depositing on substrates bright, tin- lead alloys, wherein soluble tin and lead salts, together with compatible acids, are used in conjunction with a particular combination of additives comprising (1) an aromatic amine, (2) an aromatic aldehyde, (3) an aliphatic aldehyde, and (4) a nonionic surfactant to ensure high speed operations as well as the requisite brightness and leveling. The method of utilizing such electroplating baths to plate substrates with bright metallic tin-lead alloys is also described and claimed.
Patent GB-2107463-A (GB)
Title: Liquid level detection
Inventor: MASOM RONALD ALFRED
IPC: G01F23/292
Filed: 1982-09-16
Abstract: An oil-level detector 10 is mounted on the outside face of a glass window 3 in the wall 2 of an oil tank 1. The detector has two fibre-optic cables 20 and 21 which extend within a cavity 15 between the detector and the window. The ends of the cables are mounted one above the other, one cable 20 transmitting a beam of light at an angle  alpha  of 60 DEG  to the window, through an oil 17 in the cavity which has a refractive index substantially equal to that of the window glass. The angle  alpha  is greater than the critical angle of glass with air, and less than the critical angle of glass with the oil 4 in the tank. When the window is covered by oil in the tank the light is refracted into the tank. When the oil level falls below the window, the light is reflected to the other cable 21 which is connected to a control unit 28. The control unit gives a warning a predetermined time after the level has fallen. <IMAGE>
Patent GB-2104043-A (GB)
Title: Arrangement for excavator buckets
Inventor: MANNBRO ROLF
IPC: E02F3/42
Filed: 1981-09-14
Abstract: Arrangement for excavator buckets which are mounted on an arm of an excavator machine by means for example of a bearing pedestal (17). The bearing pedestal is provided with a bearing (20) for a shaft (23) which is joined to the excavator bucket (24). A drive arrangement (25-30) which is mounted on the bearing pedestal is coupled to the said shaft. The bearing (20) is arranged so as to permit the shaft (23) to rotate through an unlimited angle and the drive arrangement (25-30) to be able to rotate the shaft and together with this the bucket through an unlimited angle. In the position which it has adopted the bucket is locked up to a certain moment being exerted, but if this moment is exceeded it can be rotated by external forces.
Patent GB-2116309-A (GB)
Title: Roof space ventilator
Inventor: HAYES GLEN ROBERT
IPC: F24F7/003
Filed: 1982-10-25
Abstract: A ventilator for providing ventilation through a soffit board comprises a cylinder 2 through which air can flow, retaining projections 3 provided over at least part of the length of the outer surface of the cylinder, and a lip 6 protruding from the outer surface of the cylinder so that the lip abuts against the board when the cylinder has been inserted into an aperture in the board. <IMAGE>
Patent GB-2112224-A (GB)
Title: Support for a closure assembly
Inventor: NOLF JEAN MARIE ETIENNE
IPC: H02G15/18
Filed: 1982-12-14
Abstract: A substrate 16 can be sealed by a recoverable sleeve 18 or other means which is supported by a support 1 which surrounds the substrate 16. The support 1 has a projection 2 which extends through a hole in the sleeve 18 to provide communication from the support 1 to the outside of the assembly. The projection may serve to locate the sleeve, to provide a pressure access point or to provide for electrical connection.
Patent GB-2112780-A (GB)
Title: Preparation of aldehydes and ketones by oxidation of alcohols
Inventor: JOHN GLYN RHYS
IPC: C07C45/39
Filed: 1982-12-17
Abstract: The preparation of aldehydes or ketones by contacting a primary or secondary alcohol in the liquid phase with molecular oxygen at a temperature below 100 DEG C in the presence of a vanadium or molybdenum complex containing at least one chelated ligand of the formula:  R<1>-CO-CH(R<2>)-CO-R<3> wherein each of R<1> and R<3>, independently, represents a hydrocarbyl or hydrocarbyloxy radical or a halogenated derivative thereof and R<2> represents hydrogen or a cyano or hydrocarbyl radical.
Patent GB-2114681-A (GB)
Title: Reciprocating vacuum pump
Inventor: THISTLETON JOHN S
IPC: F04B37/14
Filed: 1983-02-04
Abstract: A reciprocating vacuum pump in which a lubricant flow path 37 is provided to communicate via one or more inlets in the cylinder wall with the clearance between the piston 16 and the cylinder wall throughout the piston stroke. The piston is sealed by lubricant drawn into the clearance as the piston works in the cylinder. In a double acting pump at least one of the exhaust valves 51 communicates with a reservoir 30 for the lubricant so as to recycle to the reservoir lubricant entering the working volume associated with that exhaust valve. Preferably the lubricant reservoir incorporates an overflow device 34 maintaining a constant head of lubricant above the one or more inlets 37 to the cylinder. <IMAGE>
Patent GB-2114620-A (GB)
Title: Discontinuous silicon carbide fiber reinforced ceramic composites
Inventor: BRENNAN JOHN JOSEPH
IPC: C04B35/80
Filed: 1983-02-04
Abstract: Discontinuous silicon carbide fiber reinforced ceramic composites having high strength, fracture toughness, and oxidative stability in high temperature oxidative environments are disclosed where the composites include silicon carbide fiber reinforced aluminosilicate, lithium aluminosilicate, barium aluminosilicate and magnesium aluminosilicate matrices (and combinations thereof). The composite is formed by starting with the ceramic matrix material in the glassy state and converting it from the glassy state to the ceramic state after densification of the composite.
Patent GB-2129690-A (GB)
Title: Therapeutic apparatus for treatment of living tissue
Inventor: CHARMILLOT RENE
IPC: A61N5/06
Filed: 1983-11-14
Abstract: A control and display device (4) is connected to a low frequency direct current pulse generator (1) as well as to a high frequency alternating current generator (2) as well as to a laser source (3). The generators (1 and 2) and the source (3) are connected to a common endonasal probe (8) through a switch (9) controlled by the control and display device (4). The probe (8) allows to apply successively or simultaneously the electric current pulses emitted by the generators (1 and 2) and the laser beam provided by the source (3) to the same area of the endonasal membrana of a patient. Application as a therapeutic treatment apparatus, particularly for restoring the nurovegetative equilibrium and providing an anti-inflammatory and reconstituent activity.
Patent GB-2130851-A (GB)
Title: Hybrid junction circuits
Inventor: CHIVERS HOWARD ROBERT
IPC: H04B1/58
Filed: 1983-11-15
Abstract: A hybrid junction circuit which is of application to a security telephone installation connected to a public telephone system comprises an adjustable balancing network BN. Impedance components of the network BN are switched by electronic switches S1 and S2; to adjust the balancing impedance, in response to control signals CS1 and CS2 from a microprocessor control circuit C. Before balanced operation commences the circuit C selectively operates the switches S1 and S2 to adjust the balance impedance to provide a reasonable match to the external impedance presented to the bi-directional port A of the hybrid. <IMAGE>
Patent GB-2132248-A (GB)
Title: Timber mine prop
Inventor: CONRADIE JOHAN ALEXANDER
IPC: E21D15/02
Filed: 1983-11-15
Abstract: A mine support prop which consists of an elongate timber load supporting member 10 which carries a plurality of spaced grooves (12) which extend over a portion of its length adjacent one of its ends, with the grooves 12 (14, 16 and 18 Figs. 8-10) preferably being angled relatively to the prop axis. The grooves may extend parallel to the axis of the prop. <IMAGE>
Patent GB-2150183-A (GB)
Title: Window shade clutch assembly
Inventor: WINSLOW RANDY
IPC: E06B9/60
Filed: 1983-11-23
Abstract: A clutch assembly is provided to prevent over tensioning of the spring motor (25) of a window shade (11). The clutch assembly (27) includes sleeve means (29), connected to one end of the spring motor (25), having an axial bore (15) formed with internal threads (33) which are engageable with threads (23) formed along the window shade dowel, and also having sleeve locking means (37) operable to engage retaining means (39) formed on the interior surface of the window shade tube. The clutch assembly (27) is operable to permit tensioning of the spring motor (25) a predetermined number of turns of the window shade tube (13) in one direction and then prevent further tensioning of the spring motor (25) without restricting rotation of the tube (13) in such one direction. Variant embodiments are described. <IMAGE>
Patent GB-2133588-A (GB)
Title: Improvements in or relating to apparatus for controlling a ventilation fan
Inventor: SMYTH MICHAEL PHILIP
IPC: G05D22/02
Filed: 1983-12-16
Abstract: Apparatus for controlling a ventilation fan is described. The apparatus a humidity sensor (7) for sensing the humidity in the atmosphere in which the fan is placed, for example in a domestic bathroom, and for actuating the fan when the humidity exceeds a predetermined level for a predetermined time. A timing circuit (4) is also provided to cause the fan to operate for a predetermined period after the humidity sensor ceases to actuate the fan. The timing circuit may be of the RC type or a digital counter. <IMAGE>
Patent GB-2134620-A (GB)
Title: Improvements in or relating to pneumatic tube carrier systems
Inventor: LEWIS DEREK LESTER
IPC: F16L11/16
Filed: 1984-01-30
Abstract: This invention is concerned with a pneumatic tube carrier system which comprises a series of lengths of tube to form a tube line connecting a pair of stations and a supply of air under pressure or vacuum to propel a carrier from one station to the other wherein the lengths of tube joining the tube line are flexible enough to enable the tube to be formed into a curve but sufficiently firm to be retained in the curved shape. The tube may have interengaging edge parts (see also Figs. 6-10) or a helical coil (Figs. 11-16). <IMAGE>
Patent GB-2144538-A (GB)
Title: Linear measurement apparatus
Inventor: JAGER GERD
IPC: G01B11/02
Filed: 1984-08-02
Abstract: In the apparatus, which enables digital measurement with maximum accuracy up to a range of measurement of approximately 20 mm, an optical divider, comprising two component prisms (1,2), is illuminated with parallel light and monochromatic light. The two beams are deflected by means of a 90 DEG  reflecting prism (3), which is vibrated, and each beam enters a respective triple prism (4,5), is again deflected, reflected from a silvered face of the optical divider, covers the distance to the triple prism again and interferes. The two triple prisms are secured to a prism- retaining yoke (13) which is connected to a measuring plunger (8). The measuring plunger is guided. The apparatus can also digitally measure all the values which can be depicted over a travel. <IMAGE>