baber/WOPTO huggingface dataset:
Patent GB-2089870-A (GB)
Title: Tools and tool holders
IPC: E21C35/18
Filed: 1981-11-25
Abstract: A shearer type mineral winning tool 1 to be releasably retained by a tool holder 2, has a generally "V"- shaped mounting slot 3 defined by mutually inclined abutment faces 4, 5 opposite lateral sides 6 of the slot being defined by a pair of spaced apart cheeks, a rigid location member 7 extending across the cheeks at one face 4 of the slot, and a resilient latching member 8 also extending across the cheeks but at the other face 5 of the slot, and portions 7A, 8A, respectively of the peripheries of both the rigid locating member 7 and the resilient latching member 8 projecting into the slot 3. The holder 2 is adapted to be welded to an outer edge 11 of a vane 12 of a spiral vane shearer drum 14 and has a generally "V"-shaped projection 16 defined by mutually inclined abutment faces 17, 18 provided respectively with a recess 17A to house the portion 7A of the rigid location member 7, and a recess 18A to house the portion 8A of the resilient latching member 8. <IMAGE>
Patent GB-2113903-A (GB)
Title: Cable manufacture
Inventor: SPICER LYNDON REGINALD
IPC: H01B11/02
Filed: 1982-01-12
Abstract: A cable comprises a central electrically insulating string (5) in whose periphery a plurality, four in the case of a quad, of electrical or optical conductors (6) are at least partially embedded. A polyethylene sheath (7) is extruded over the string (5). The quad may be made by heat softening the string (5) and pressing the conductors (6) thereinto by means of a tool (Figures 3, 4 and 5) which ensures the desired spacing and configuration of the conductors relative to one another, necessary for high quality quads of electrical conductors in order to have low crosstalk, is obtained. The cable construction is considerably simpler than previous constructions and can be manufactured with a minimum of process stages at high throughput speeds. <IMAGE>
Patent GB-2091823-A (GB)
Title: Gland
IPC: F16J15/36
Filed: 1982-01-19
Abstract: A gland with a frontal-sliding seal of the kind in which the sealing pressure between a graphite ring (22) and a hub (14) of a pump rotor (12) is applied by an elastomeric cup spring (24) cooperating with a helical spring (34), the front face of the base (26) of the cup spring having a number of concentric annular crests (28A, 30A, 32A) in sealing contact with the graphite ring (22) has, to improve this sealing contact, a pressure distributing ring (36) incorporated in the base (26) of the cup spring, and a circumferential groove (38) provided in the outer circumference of the base. <IMAGE>
Patent GB-2097159-A (GB)
Title: Fire detectors, alarm and extinguishing systems
IPC: G08B17/06
Filed: 1982-01-26
Abstract: A fire detector includes a temperature- responsive element in the form of a coil 4 of shape memory effect alloy, housed within a thermally conductive sheath 3. In the event of a temperature rise indicative of the existence or imminence of fire, the coil is heated through its transformation temperature range such that the stiffness of the alloy increases significantly. The effective length of the coil thus increases to press a disc 5 against a contact 9 to complete an electrical circuit and signal an alarm condition. in an alternative embodiment (not shown) the temperature- responsive element may be a rod of SME alloy which exhibits a straight form when below the temperature transformation range and a curved form above it, or vice-versa. <IMAGE>
Patent GB-2115507-A (GB)
Title: Disc-brake assembly
Inventor: LANG ALLAN MICHAEL
IPC: F16D55/228
Filed: 1982-02-25
Abstract: A disc brake assembly has a brake pad 3 comprising a friction slab 7 and a backing plate 6 pressed against the side of a rotating brake disc 2 by two hydraulic pistons 4a, 5a. The slab 7 has leading and trailing edges 10, 11 with respect to the direction 9 of rotation of the disc and pressure from the pistons 4a, 5a is applied to the slab 7 through pressure regions 12 having centres of pressure which are displaced from the geometrical centres 4c, 5c of the respective pistons to be nearer to the leading and trailing edges 10, 11 than are the geometrical centres of those pistons to alleviate squeal. The aforementioned displacement is provided by layers of material 13 against which part only of the piston end faces 4b and 5b react. In alternative arrangements the displacement of the centre of pressure is provided by recesses or rebates formed on the rear face of the backing plate 6; by curvature of the backing plate to present a concave surface to the end faces of the pistons; by profiling the end faces of the pistons or by providing an intermediate profiled member between the pistons and the brake pad. <IMAGE>
Patent GB-2093992-A (GB)
Title: Torque measurement apparatus
IPC: G01L3/12
Filed: 1982-02-25
Abstract: Apparatus for measuring torque transmitted by a rotary component such as a shaft (11) during rotation thereof, includes a primary light pulse source (18) which is triggered at a reference position in each revolution of the component to direct a light pulse (21) at a light reflective means (12) disposed on the component at a position subject to displacement by torque transmitted by the component. The light pulse is reflected in a direction or position significant of the transmitted torque onto a suitably positioned photo-diode matrix (23). After calibration of the apparatus the output from the photo-diode matrix is indicative of transmitted torque. In other embodiments using plane mirrors (Figures 6 and 7), the mirror extends radially of the shaft and is disposed at 45 DEG  to the axial plane, and in the axial plane, respectively. <IMAGE>
Patent GB-2093040-A (GB)
Title: Immobilization of animal cells
IPC: B60P1/46
Filed: 1981-08-14
Abstract: Animal cells are immobilized by adsorbing anchorage-dependent animal cells on microcarriers which can be enzymatically degraded with anzymes such as dispase and collagenase to release the cells intact. The microcarriers include naturally occurring proteins and polysaccharides or derivatives thereof, such as gelatin and chitosan. The microcarriers may be modified with a crosslinking agent such as glutaraldehyde to impart higher temperature resistance and increase mechanical strength. Incorporating particles of a magnetic material such as Fe<u3>uO<u4>u in the microcarriers permits the use of an external magnetic field to stir, suspend and/or isolate the microcarriers. Alternatively, animal cells are immobilized by entrapping in alginate or agarose gels.
Patent GB-2107593-A (GB)
Title: Golf mat
Inventor: LAWRENCE CHARLES
IPC: A63B69/36
Filed: 1982-10-08
Abstract: A practice mat for playing golf particularly tee shots comprises a layer of polymeric bound rubber granules 2 and a surface layer 3 of a material representing grass. At least one hollow tube 4 extends through the layers so that a golf tee may be inserted into the tube from the grass layer and its height relative to the grass layer adjusted. A third or base layer 1 may also be provided. Several tubes may extend through the layer as desired. <IMAGE>
Patent GB-2115242-A (GB)
Title: Battery charging
Inventor: HOHT WOLFGANG
IPC: H02J7/00
Filed: 1982-12-01
Abstract: Batteries of different rated capacities can be charged using a standardised constant current charging supply 1 by associating with each battery 3 a programming circuit, comprising a resistor 10, which automatically adopts the charging supply 1 so that the battery receives an appropriate normal or fast charging current. After a predetermined period a time switch 12, energised from the supply 1, removes a short across a resistor 11 whereafter the battery is trickle charged. In an alternative embodiment (Fig. 2), the resistor 11 is omitted and after a predetermined period of normal charging a timer (14) energises a pulse generator (15) which via an opto-coupler (13) periodically opens and closes the charging current path between the supply 1 and battery 3 to effectively trickle charge the battery.   <IMAGE>
Patent GB-2116850-A (GB)
Title: Sweat collection device
Inventor: WEBSTER HENRY LEWIS
IPC: A61B10/00
Filed: 1983-03-15
Abstract: A sweat-collection device has a shallowly concave sweat-collecting surface (15) defining a concavity (13) with a rim (14) lying wholly within a common plane for placement over an iontophoresis-stimulated area of a person's skin to collect sweat from the skin and pass it through a bore (18). The concavity is so shallow that no dead space occurs between the collecting surface and the skin and flesh bulge into the concavity when the device is applied to a patient. The concavity may incorporate barriers for preventing soft skin and flesh from closing the bore. Flexible tubing (17) is secured to the axial bore (18) for receiving and storing the collected sweat, and a chamber (19) may be provided in the body of the device opposite the sweat- collecting surface for holding the tubing (17) in a flat coil. A strap is provided for securing the device to a patient. Provision may be made for retaining and discharging sweat after it has been collected. <IMAGE>
Patent GB-2117736-A (GB)
Title: Bag-in-box type containers for liquid
Inventor: AOYAMA HIROSHI
IPC: B65D77/06
Filed: 1983-03-18
Abstract: A container for liquid comprises an outer box (18) made of cardboard sheet having a rectangular parallelepiped shape, and an inner bag (42) made of polymer film or polymer sheet, the side walls of which bag, in a flattened empty state, are folded inwardly, and the top and bottom ends of which bag are sealed. The inner bag (42) is connected with the outer box (18) by means of a cylindrical mount (38). The inner bag (42) expands to a parallelepiped shape which fits into the inside of the outer box (18) when the bag (42) is filled with liquid through the mouth (38). <IMAGE>
Patent GB-2119209-A (GB)
Title: Variable horizontal deflection circuit capable of providing eastwest pincushion correction
Inventor: HAFERL PETER EDUARD
IPC: H04N3/233
Filed: 1983-04-18
Abstract: In a deflection circuit suitable for a television receiver, a controllable switch (Q1) operated at the horizontal deflection rate is coupled to a horizontal deflection winding (LH) to generate scanning current during a trace interval of a deflection cycle. A deflection retrace capacitor (CRD1, CRD2) forms a retrace resonant circuit (25) with the deflection winding (LH) during the retrace interval. A supply inductance such as a winding (W1') of a horizontal output transformer (T) is coupled either conductively or magnetically to a generator (50) of supply energy. A second capacitor (CRT) is coupled to the supply inductance (W1') and to the controllable switch (Q1) and forms a second resonant circuit (30) with the supply inductance within the retrace interval to generate a pulse voltage. The pulse voltage energizes a load circuit such as the ultor high voltage circuit (31). A modulation inductance (T2) is coupled to a source (Q2) of modulation signals and to the deflection winding (LH) and supplies a modulation current to the retrace resonant circuit (25) to modulate the amplitude of the scanning current without modulating the amplitude of the supply inductance pulse voltage. The modulation may occur at a vertical rate to provide east-west pincushion distortion correction. <IMAGE>
Patent GB-2121955-A (GB)
Title: Identification of asbestos
Inventor: WILLEY ROGER JAMES
IPC: G01N27/72
Filed: 1983-05-17
Abstract: A sample (20) of asbestos fibres is placed in a magnetic field, produced e.g. by coils 14 and 16, and a response of the fibres to the field is measured with a device such as a pattern recognition device (20) in association with a light source (24) and optical system (26) to derive measurements which are characteristic of the asbestos type. The measured response may be the value of the magnetic field required to fully align the fibres. This may be found by extrapolation from measurements taken at different field strengths of the proportion of fibres aligned at 60 DEG  to the field to those aligned with the field. <IMAGE>
Patent GB-2141176-A (GB)
Title: Spring force applying tensional force actuators
Inventor: JENNISON PAUL
IPC: B60T17/08
Filed: 1983-05-31
Abstract: In a spring brake actuator a piston (2) is arranged to be acted upon by spring (7) to apply a tension output force to a brake rod or cable linkage (13) via a trunk (12) extending through one end of the actuator, the other end wall (14) of the actuator and the piston forming a pressure chamber with a port 15. A mechanically operable release mechanism is provided by a sealingly rotatable captive threaded rod (16) which co-operates with a nut 19 keyed in a recess 20 of the piston the nut being abuttable with the bottom (27) of the recess so that nut movement comes piston retraction against the spring force. <IMAGE>
Patent GB-2124534-A (GB)
Title: Surgical stitch cutters
Inventor: KIRKBY PETER WILLIAM RAGG
IPC: A61B17/32
Filed: 1983-07-15
Abstract: A surgical stitch cutter comprising a flat sterile blade having an elongated shank portion (16) terminating at one side of its leading end a substantially straight cutting edge (18) extending at an obtuse angle to the length of the blade, and at the opposite side of the leading end a convexly curved edge (19), the said edges meeting substantially at a point (17). <IMAGE>
Patent GB-2124741-A (GB)
Title: Missile launcher
Inventor: WEEKS GERNET JOHN
IPC: F41F3/042
Filed: 1983-07-13
Abstract: A container serving as both a storage enclosure and launch tube for a missile comprises an efflux deflector 13 positioned for receiving the missile efflux and deflecting it around and into a series of ducts 14 which run alongside the missile 5 to the missile exit end of the container 1, which end has an openable cover 9, 10 operable to close both the missile exit and the exits from the ducts. The efflux deflector 13 which preferably defines an annular trough shape may comprise perforations leading to a chamber within the container and behind the deflector, the chamber serving to absorb some of the transient pressure peaks which may develop at the missile side of the deflector. <IMAGE>
Patent GB-2128180-A (GB)
Title: Method and apparatus for manufacturing cement of the Belite type
Inventor: STARK JOCHEN
IPC: F27D15/02
Filed: 1983-08-17
Abstract: An active Belite cement clinker is sintered at 1350 DEG C-1450 DEG C and is cooled in two stages, with rapid cooling (quenching) e.g. in a fluidised bed being obtainable at the first stage and/or any necessary minimisation of the particle size to </= 10 mm diameter by impact pulverisation with simultaneous cooling and/or adjustment of the silicate module and/or alumina module, and subsequent cooling taking place at the second stage with normal cooling gradients. Preferably the high cooling gradient stage occurs within the range 1350 DEG C-1250 DEG C as the upper limit and 1000 DEG C-800 DEG C as the lower limit.
Patent GB-2145520-A (GB)
Title: Method of forming random vibration spectrum and device therefor
Inventor: URETSKY YAN SEMENOVICH
IPC: G01N29/34
Filed: 1983-08-22
Abstract: A method of forming a random vibration spectrum comprises the steps of firstly causing vibration of an article (1) under test in a predetermined frequency range by the use of a variable-frequency harmonic oscillator (10) and then using a multichannel random signal shaper (4) to set characteristic values of spectral vibration acceleration density at each chosen check point on the article (1) in each band of the predetermined frequency range, a random output signal level kn in each channel being computed by solving a set of linear equations. A device for accomplishing the method comprises the multichannel shaper (4) connected to a vibrator (2) mounting the test article (1); vibration pick-ups (3) secured at the check points and connected through a switch (12) to a signal analyzer (13); a unit (16) for setting parameters of a formed random vibration spectrum, and a control unit (17). The device also comprises oscillator (10) and a memory unit (14) connected thereto. A computing unit (15) receives inputs from units (14) and (16) and is connected to the control inputs of adjustable amplifiers (7) in shaper (4). A gate (9) is controlled by unit (17) to pass firstly signals from oscillator (10) to the vibrator and their signals from shaper (4). <IMAGE>
Patent GB-2126621-A (GB)
Title: Demountable partitioning system
Inventor: THOBURN JOHN GRAHAM
IPC: E04B2/76
Filed: 1983-08-31
Abstract: A demountable partitioning system comprises multi-purpose aluminium extrusions adapted to be snap-fitted together in a number of different configurations to suit different constructional and system design requirements. The system centres around two universal sections FW1, FW11 each in the form of a rectangular channel open at one side and provided with formations 3, 4, 5 enabling other extrusions selected from a glazing infill section (FW3 Fig. 3), a blank end section (FW4 Fig. 4), and a door infill section FW5, each provided with complementary formations (8, 10 Figs. 3 & 5) to be snap-fitted onto one or more sides of the universal section (FW1, FW11). Extruded aluminium or plastics glazing channels (FW6, FW7, FW8) capable of engaging with a number of different glazing beads (FG) can be snap-fitted with the universal sections (FW1, FW11) and with the glazing infill section for assembling single or double glazing as desired to the universal sections (FW1, FW11). The sections may engage with wall panels, may be readily demountable and may have wiring ducting. <IMAGE>
Patent GB-2126966-A (GB)
Title: Mounting for fifth wheel trailer coupling
Inventor: JAKOB LOTHAR
IPC: B62D53/08
Filed: 1983-09-01
Abstract: A towing device adapted to be mounted on a towing vehicle mounts thereon a fifth wheel trailer coupling (not shown). The device comprises elongate carriers 1 mounted on the chassis 4 of the towing vehicle so as to extend generally longitudinally of the vehicle, and a mounting plate 2 which is connected to the carriers 1 and which is arranged to mount the fifth wheel trailer coupling thereon. The mounting plate 2 is connected to the elongate carriers 1 by means of brackets 2a which are displaceable along the length of the elongate carriers 1 to adjust the position of the fifth wheel trailer coupling when mounted on the mounting plate 2. The elongate carriers 1 are channel shaped and provided with lateral adjusting holes throughout their length, and the brackets 2a have mounting holes 5 which can be moved into registry with and be secured to any selected adjusting holes of the carriers 1. <IMAGE>
Patent GB-2146774-A (GB)
Title: Grip measuring device
Inventor: JACKSON JOSEPH FENWICK
IPC: G01L1/22
Filed: 1983-09-15
Abstract: A grip measuring device comprises a measuring unit 10 locatable between the jaws of a chuck to be rotated with it, and including means to measure the gripping force being exerted on it, and a transmitter 24 arranged to transmit a signal proportional to the measured gripping force to a receiver 26, the receiver being spaced from the transmitter and connected to an indicator 28 of the gripping force. The measuring unit may include a resistance bridge 16 including strain gauges. Its voltage output is applied to a voltage to frequency converter 22 via an amplifier 20. Thus L.E.D receives half square waves, and sends out light pulses at a frequency proportional to the grip of the jaws to a stationary phototransistor 26. The pulses received are counted. and from the rate of the pulses the display 28 gives a figure proportional to the gripping force. <IMAGE>
Patent GB-2130021-A (GB)
Title: Electrically connecting printed circuit boards
Inventor: JOHNSON LENNART B
IPC: H05K1/11
Filed: 1983-11-02
Abstract: A plurality of daughter printed circuit boards (12) are detachably mounted on a backplane (14) and electrically connected to a bus bar (16, 17) on the same side of the backplane via contacts (18) on the daughter boards that mate with contact portions (20) of the bus bar. A plurality of parallel contacts (28) provide increased current carrying capacity. <IMAGE>
Patent GB-2133173-A (GB)
Title: Rotatable optical projection comparator
Inventor: DONALDSON CHARLES WAYNE
IPC: G01B11/25
Filed: 1983-11-22
Abstract: An image 102 is projected onto e.g. a fillet 12B and rotated about the axis, 33 to thereby scan along the surface of the fillet. In an embodiment, the image is received and focused generally toward the axis, and then generally upward, by a mirror 91 intersecting the axis, to a display screen 94 which rotates along with the image. A template 118 containing a reference image 121 rotates along the display screen 94. In this manner, the entire fillet can be scanned (including portions hidden from view by the boss 9B) and images obtained for comparison with the reference images. The images do not translocate through space, but only rotate on the display screen about the axis for convenience of comparison with the similarly rotating reference image. <IMAGE>
Patent GB-2134100-A (GB)
Title: Glass for a photomask
Inventor: YATSUDA HISAO
IPC: G03F1/00
Filed: 1983-12-16
Abstract: According to one aspect of the invention, there is provided glass for a photomask consisting, in weight percent, of 45 to 62% SiO2, 3 to 15% B2O3, 12 to 25% Al2O3, 5 to 15% MgO, 0 to 5% CaO, 0 to 5% SrO, 0 to 5% BaO, 0 to 5% ZnO, 0.5 to 5% PbO, 0 to 20% La2O3+Gd2O3+Y2O3, 0 to 1.5% Na2O, 0 to 1.5% K2O, 0 to 0.5% As2O3 and 0 to 6% Sb2O3. This glass is easy to melt and homogenize and has good resistivity to phase separation and excellent heat resisting and refractory properties, chemical durability, ultraviolet transmittance and metal vapor deposition property. According to another aspect of the invention, there is provided glass for a photomask consisting, in weight %, 45 to 60% SiO2, 0.5 to 12% B2O3, 10 to 22% Al2O3, 5 to 17% MgO, 0 to 5% CaO, 0 to 8% SrO, 1.5 to 15% BaO, 1.5 to 17% ZnO, 0.5 to 10% PbO, the total content of ZnO and PbO being at least 6%, 0 to 7% Ta2O5+Nb2O5+La2O3+Gd2O3+Y2O3+Bi2O3+WO3, 0 to 5% ZrO2+TiO2, 0 to 2.5% Na2O+K2O+Li2O, 0 to 0.5% As2O3 and 0 to 0.5% Sb2O3. This glass has the same excellent features as the first described glass and, in addition, has further improved melt properties.
Patent GB-2133297-A (GB)
Title: Board games using triangular pieces
Inventor: CALEWAERT MARC
IPC: A63F9/06
Filed: 1984-01-09
Abstract: A plurality of pieces (1) in the form of equilateral triangles are provided on a board (2) so as to completely cover the board and are held in place by a frame (3), each piece being divided into three identical triangular zones (5) which are each respectively marked with one of three different colours and also with signs, letters or numbers (4). The pieces (1) are provided with handles (6) by which they can be moved into an arrangement in which every pair of adjacent zones (5) respectively provided by two adjacent pieces are of the same colour and bear the same number etc. (4). The board may be triangular or in the form of a star or rhombus. <IMAGE>
Patent GB-2153541-A (GB)
Title: Mandrel and core assembly for large format cameras
Inventor: VAUGHAN QUENTIN DURWOOD
IPC: G03B27/58
Filed: 1984-01-28
Abstract: A combined mandrel and core assembly for a camera in which an elongated, cylindrical hollow core 11, upon which a roll of photosensitive material is carried, is supported by a cylindrical mandrel 10 rotatably mounted within the camera. A spring loaded detent 28 within a slot in the mandrel extends through the slot into a complementary slot 16 at the midpoint between the ends of the core. The mandrel slot is precisely located upon the longitudinal optical axis of the camera's image plane. The core and its photosensitive material are thereby quickly and accurately positioned along said optical axis. Different widths of photosensitive material may be used upon the same mandrel. <IMAGE>