baber/WOPTO huggingface dataset:
Patent GB-2040431-A (GB)
Title: Illumination system for photo-copying devices
IPC: F21V7/04
Filed: 1979-12-20
Abstract: An illumination system for photo-copying devices, particularly photo-lithographic devices, comprising a reflector (2) whose whole reflective surface is illuminated by a single light source (1) and divided up into areas (3) each of which produces an image of the light source separated from an adjacent image so that the reflector can cover the widest possible image area, the reflector being constructed to mix light from the light source images in such a manner that an even illumination is obtained over a definite range in a preselected plane (E). Preferably, the reflective surface comprises individual reflectors having an envelope face in common. For instance, the individual reflectors may be plane or parts of an ellipsoid, paraboloid, or hyperboloid. <IMAGE>
Patent GB-2066319-A (GB)
Title: Locator for vertical reinforcing bars
IPC: E04C5/16
Filed: 1979-12-29
Abstract: This comprises steel wire(s) 24, 26, 28, 30 forming a horizontal supporting structure to be laid on hollow blocks 12 at various levels as the blocks are being laid to form a wall. The structure is a square 54 or is a ladder-like structure made up of two parallel wires 24, 26 connected together by cross wires 28, 30. Some cross wires have circular rings 34 formed therein or attached thereto, and all cross wires have legs 32 that project down into the hollow blocks 12 and engage the inner surfaces thereof to locate the structure. The rings 34 are positioned in vertical alignment with respect to one another, and the vertical bars 36 are lowered into the block cavities through the rings 34. The cavities are then filled with cement grout, which embeds the bars. One set of rings 36 may be provided to receive the stub steel bars projecting upwardly from the concrete footing, while another set of rings receives the vertical reinforcing bars. <IMAGE>
Patent GB-2068557-A (GB)
Title: Deflection testing
IPC: G01N3/20
Filed: 1980-01-25
Abstract: A method of deflection testing a member, comprises applying a load, gradually increasing towards a predetermined maximum, at a point intermediate of two support positions of a member to be tested and electrically/electronically measuring the load and deflection of the member at or adjacent the point at which the load is applied. The apparatus comprises means for carrying out each of these steps. <IMAGE>
Patent GB-2040202-A (GB)
Title: Welding a hollow member at one end thereof to a surface of another member
IPC: B23K9/028
Filed: 1980-01-25
Abstract: In welding a hollow member 44 (e.g. of circular cross-section) to the surface of another member 46, a welding tool having an outwardly directed tip 14 is located within the hollow member with the tip pointing towards the internal edge of the hollow member where it lies on the surface of the other member, and the welding tool is activated whilst the hollow member and the other member are both moved relatively to the tool so that a weld is formed between the two members completely on the inside of the hollow member. The specification refers particularly to gas (e.g. CO2, helium or argon) or vacuum-shielded consumable electrode arc welding. It also refers to automatically or profile-follower controlled welding of a hollow member of non-circular cross-section, and to additional welding of the hollow member to a further member, e.g. to a surrounding member by way of internally effected welding through the wall of the hollow member. <IMAGE>
Patent GB-2042783-A (GB)
Title: Sorting coins
IPC: G07D5/00
Filed: 1980-02-08
Abstract: Electronic coin sorting apparatus comprising an electronic denomination checker 1 capable of sensing each coin deposited into the apparatus against a predetermined set of denomination criteria, generating a denomination signal corresponding to the denomination of the coin, and dispensing the coin downwards, a first coin way 10 disposed below the denomination checker, a plurality of shutters 21, 22, 23 respectively corresponding to the denomination criteria and so disposed as to distribute the coin in correspondence with the sensed denomination of the coin, a plurality of second coin ways 11, 12, 13 connected with the first coin way, respectively, corresponding to the shutters, and a plurality of coin detectors 16, 17, 18 respectively disposed in the second ways. <IMAGE>
Patent GB-2073531-A (GB)
Title: Tracking radar
IPC: G01S13/68
Filed: 1980-03-26
Abstract: In a low-angle tracking radar frequency diversity is used to reduce or eliminate drastic loss of signal at a particular frequency. The invention proposes a comparison of all the echo returns from a single target to determine whether or not a majority of the returns agree within predetermined limits. If there is such a majority in agreement then only those returns are averaged to determine the output. If the majority of returns do not agree within the predetermined limits then all the returns are averaged.
Patent GB-2047837-A (GB)
Title: Threaded fasteners with flexible flanges
IPC: F16B39/282
Filed: 1980-04-21
Abstract: A nut (or bolt) fasteners 10 includes a body portion (12) with a bearing surface (22, 26) at the workpiece engaging end defined at least in part by a flange (14). Segments (22) of the bearing surface defined by the flange are flexible and resilient and other segments (26) are rendered rigid by brace structure (28) associated with the body portion (12) of the fastener. Upon tightening of the fastener against the workpiece (38), deflection of the resilient segments provides a spring action to compensate for developed looseness or loss of tension. In another embodiment (not shown), locking teeth project from the bearing surface in the resilient segments of the flange between the rigid segments, the flange being flat rather than undulated. <IMAGE>
Patent GB-2049252-A (GB)
Title: Coin-validating arrangements
IPC: G07D5/08
Filed: 1980-04-25
Abstract: A coin-validating arrangement comprising a coin guide path 3 and a sensing coil L1, L2 disposed adjacent said path, the coil being part of a tuned circuit (L1, L2, C1, C2 C3) coupled into a negative feedback path of an amplifier (11) whereby to produce a phase shift sufficient to result in positive feedback and oscillation in said amplifier (11) in the absence of a correct coin 4 at the region of said path 3 adjacent said coil, the tuned circuit being so arranged that on passage of a correct coin past said region the oscillation is quenched or reduced in amplitude, means (12) being provided for detecting the quenching or amplitude reduction of said oscillation, further means (13, 14) being provided for responding to said detecting and opening an acceptance gate 6, 7 for the said correct coin. <IMAGE>
Patent GB-2051801-A (GB)
Title: New compound with laxative activity, pharmaceutical compositions which contain it, and a process for its preparation
IPC: A61K31/4402
Filed: 1980-06-10
Abstract: A new compound having laxative activity, namely bis-[p-(1-ethoxy- ethoxy)phenyl]-2-pyridylmethane, pharmaceutical compositions which contain this compound, and a process for preparing the compound by reacting bis-(p-hydroxyphenyl)-2-pyridyl- methane with ethylvinylether in the presence of an acid catalyst such as sulphuric acid.
Patent GB-2054367-A (GB)
Title: Chair having a seat and back adjustable by gas cylinders
IPC: A47C3/30
Filed: 1980-07-02
Abstract: A chair having seat and back adjustable in position, wherein the seat is secured to a support (2) associated with the stem of a pneumatic or gas cylinder (4) for the positioning thereof in height, whilst the back is secured to a strut or upright (7) pivotally (8) mounted on said support (2) and engaged in turn by a second gas cylinder (10) intended to locate the back in various conditions of inclination against the bias of a spring, (12), characterised by the feature of comprising a single operating lever (13) intended to act directly (at 17) on one of said gas cylinders (4) and indirectly (at 18, via lever 20) on the other gas cylinder (10) for selectively controlling the positioning in height and inclination of the seat and the back. <IMAGE>
Patent GB-2061675-A (GB)
Title: Stereo signal demodulators
IPC: H04B1/16
Filed: 1980-08-29
Abstract: A stereo signal demodulator having a switching circuit 9-12 for demodulating main and sub-channel signals of a stereo composite signal to provide right and left signals. A crosstalk cancellation circuit 35 is provided for attenuating the main and sub-channel signals at 18 by a predetermined amount, and further means are provided for superposing the right and left signals at 3, 2 from the switching circuit upon the output of the crosstalk cancellation circuit. <IMAGE>
Patent GB-2079596-A (GB)
Title: Improvements in or relating to bed covers
IPC: A47G9/02
Filed: 1980-10-14
Abstract: There is provided an assembly which comprises a bedspread, a blanket or quilt and a top sheet, with means securing the three pieces together. <IMAGE>
Patent GB-2091491-A (GB)
Title: Switch assembly
IPC: A47J27/21
Filed: 1981-01-17
Abstract: An automatic switch assembly, for an automatic electric kettle, includes a dry overload switch unit 14 incorporating a reserve switch 40, and a steam responsive switch unit 16 incorporating a main switch 61. The assembly is arranged so that in normal operation the switch 40 is non- effective and so that the dry overload switch unit 14 actuates the main switch 61; and so that the steam responsive switch unit 16 can be detached to render the reserve switch 40 operational as a dry overload switch to enable the kettle to be used as a non-automatic kettle. <IMAGE>
Patent GB-2069858-A (GB)
Title: Belt pressure filter
IPC: C02F11/123
Filed: 1981-01-28
Abstract: A belt pressure filter comprises an endless filter belt moving through a gravity dewatering zone where sludge is supplied to the belt followed by a forcible dewatering zone where the sludge is pressed between two belts passing round rollers. Coagulating agent is mixed with the sludge in mixer 22 upstream of the gravity dewatering zone. The thickness of the sludge deposited on the belt in the gravity dewatering zone is continuously monitored and used as a measure of the solids concentration therein, and this figure is processed to control the belt speed and/or the dosage of coagulating agent, in order to produce a filter cake of uniform water content and to avoid wasting the coagulating agent. <IMAGE>
Patent GB-2078317-A (GB)
Title: Multiple speed planetary gear hub
IPC: B62M11/16
Filed: 1981-02-12
Abstract: The multiple gear speed transmission hub for a bicycle comprises an axle 11, a ring gear 2, a planet wheel carrier 1 and a ratchet locking device including a pawl ring 8 with pawls 7 and a ratchet wheel 12. The ring gear 2 and planet wheel carrier 1 are selectively connectable to a driver 3 via an axially displaceable clutch sleeve 4. The clutch sleeve 4 has input and output teeth 5 and 6 of identical dimensions. The pawl ring 8 is mounted positively, but with provision for axial displacement on the ring gear 2. Displacement of the pawl ring 8 is effected by means of the clutch sleeve 4. To this end the pawl ring 8 is formed with two diametrically opposed, radially inwardly directed lugs 9 which may be engaged by the output teeth 6 of the clutch sleeve 4 and during gear operation are entrained in the direction of the driver 3. Return of the pawl ring 8 to the starting position is effected by a spring 10. <IMAGE>
Patent GB-2069541-A (GB)
Title: Dry cleaning machines
IPC: D06F43/00
Filed: 1981-02-12
Abstract: A dry cleaning machine comprises an air circulation circuit having a condenser 44 for the solvent recovered from circulating air and an air heater 50. Between the condenser and heater, the circuit comprises a droplet recovery system D, preferably in the form of one or more perforated plates 52, 54, 56, which collects substantially all solvent droplets not previously recovered by the condenser. The components of the machine for performing the air circulation are arranged so that the path of circulating air has a substantially central plane of symmetry. In the embodiment disclosed, the plane is coincident with the central vertical plane containing the horizontal axis of rotation of the drum 14 of the machine. <IMAGE>
Patent GB-2077675-A (GB)
Title: Railway vehicle arrestor
IPC: B61H11/00
Filed: 1981-04-16
Abstract: Runway rail vehicles such as trucks speeding downhill in a mine are slowed and arrested by the provision of an apparatus including a trolley (7) which is movably mounted on support means (3') which support shearable members (5). The trolley (7) has contact members which, when abutted or engaged by a part of a runaway rail vehicle, enable the trolley (7) to move with the rail vehicle. As the trolley (7) moves in such manner, a shearing member provided thereon shears through the shearable members (5) one by one. Energy is used in the process of shearing and eventually the kinetic energy of the rail vehicle is reduced to zero at which point the vehicle is arrested. <IMAGE>
Patent GB-2077128-A (GB)
Title: Mixer, especially for making ice cream
IPC: B01F7/18
Filed: 1981-05-29
Abstract: The ice cream machine consists of a compact, box-shaped housing in which there is provided a refrigerating unit and a mixing chamber for receiving and mixing the ingredients. Inside the mixing chamber there is rotatably mounted a blade arrangement driven by a motor reducer unit also within the housing; the blade arrangement is such as, in operation, to rub the ingredients against the wall of the chamber, to recycle them in a vertical circulatory motion, and to scrape them from and move them away from and towards various walls of the chamber. Refrigeration and mixing periods are timer-controlled. A modification embodies means for squeezing fruit pulp being mixed into the ice cream. A self-contained heater unit can also be provided for heating the contents of the chamber. In one embodiment, an auxiliary mixer incorporating a cutting blade is detachably mountable on the housing so that its blade can be driven from the motor reducer unit.
Patent GB-2107858-A (GB)
Title: Fibre defect detection
Inventor: MULLER JOSE
IPC: G01N21/88
Filed: 1981-10-01
Abstract: An array of fibrous material (1) for analysis is carried past an examination station with a light source (30) and a photosensor (34). To enhance the visibility of defects, the array is immersed in a liquid (12) having a refractive index substantially equal to that of the fibres of the array. The preferred embodiment incorporates a microprocessor which analyses the output signal from the photosensor (34) so as to detect the presence of defects. <IMAGE>
Patent GB-2085025-A (GB)
Title: Emulsion paint for use with a pressurised applicator
IPC: C09D5/02
Filed: 1981-10-02
Abstract: An emulsion paint for use with a pressurised applicator is formulated with film-forming resin, pigment and/or extender and other conventional paint ingredients in an aqueous medium so as to provide the paint with specified efflux time viscosities (measured as the time required to pump 100 ml of paint through a tube of internal diameter 5 mm and length about 1.4 m using apparatus described herein) under varying combinations of temperature, pressure and pretreatment conditions as shown in the following table:   <IMAGE> *Gloss paints tested at 10 DEG C.
Patent GB-2108227-A (GB)
Title: Couplings for tubes or other items of glassware
Inventor: GARDNER ALFRED JAMES
IPC: F16L49/06
Filed: 1981-10-23
Abstract: A coupling for tubes or other items of circular section particularly of glass comprises and axially split externally threaded collet member 17. A seal may be provided by an O-ring 16 and the coupling may be used for positive joint retention in laboratory glassware. <IMAGE>
Patent GB-2110135-A (GB)
Title: Making metal wire from powder
Inventor: CUMMINS ROBERT BERNARD
IPC: B22F5/12
Filed: 1981-11-03
Abstract: By using the power and precision of heat source available with laser power; a wire can be made directly into the diameter required from raw material (metal powders) without drawing down. The metal powder is mixed into the exact final wire specification required. This mixture is then made to flow in a channel of the required final wire diameter into an orifice where melting takes place. The laser enables the reaction of powder to finished wire to be completed so quickly that no alloying losses occur. The laser produces a metallic structure in this finished wire that makes the conventional heat treatments to refine wire after drawing operations unnecessary.
Patent GB-2087838-A (GB)
Title: A lifting mechanism
IPC: B66F7/08
Filed: 1981-11-26
Abstract: A lifting mechanism makes use of a pair of pivoted linkages (14). The linkages are of a type which can be actuated to increase the distance between two points (22,26). One of these points (22) will be fixed and the other (26) will be attached to a load (10), so that the load can be lifted by actuating the linkages. One of the points attached to the load will be constrained by a guide (38), so that it can only move in a substantially straight line. <IMAGE>
Patent GB-2107615-A (GB)
Title: Centrifuge rotors
Inventor: BAUMLER JURGEN
IPC: B04B7/08
Filed: 1981-12-16
Abstract: In a centrifuge rotor (1) hinged beakers, bearers or holders for sample containers or their carriers, such as plates, are suspended on two bearing pins (5) integrally formed with Y-shaped ends (4) of supporting arms (3) of the rotor. The rotor is manufactured in one piece, by casting or drop-forging, in titanium or steel super-alloy. <IMAGE>
Patent GB-2096313-A (GB)
Title: An apparatus for indicating pulse height distribution for use with a fluorescent X-ray film thickness meter
IPC: G01N23/223
Filed: 1982-01-29
Abstract: An apparatus for indicating pulse height distribution for use with a fluorescent X-ray film thickness meter, comprises two signal generators (8, 9) each producing a control signal with a stepped waveform. Discriminators (6, 7) receive one of the control signals respectively and a pulsiform output signal (5) from a fluorescent X-ray detector (4). A circuit (10) and a counter (11) produce an output signal related to the intensity of the X-ray in a series of bands of the X-ray spectrum, the bands being determined by the steps of the control signal. A display device (12) is connected to the output of the counter (11) and indicates pulse height distribution of the pulsiform output signal which depends on the thickness of the silver coating on a copper sample 3. <IMAGE>
Patent GB-2092594-A (GB)
Title: Transparencies produced from epoxy resins
IPC: C08G59/40
Filed: 1982-02-01
Abstract: 1. A transparent thermosetting resin-forming composition having resistance to intense heat, comprising:  a transparent blend having     (a) from about 80 to about 100 parts by weight of an epoxy resin; (b) from about 5 to about 30 parts by weight of a boroxine having the formula:   <IMAGE>  where R is a compound having from 1 to 18 carbon atoms, (c) from about 1 part to about 40 parts by weight of certain organic phosphorus compounds, and optionally   (d) A phenyl substituted alkyl alcohol   The resins may be made into laminates in which the other layers comprise one or more of glass, a polycarbonate, a polyurethane, a silicone, an acrylic resin, a mercaptan terminated resin or a polyvinyl butyral.
Patent GB-2115477-A (GB)
Title: Hinges
Inventor: SHEPHERD JOHN
IPC: E05D7/10
Filed: 1982-02-16
Abstract: A hinge consists of two main parts one to attach to a post or wall etc., to act as the fulcrum point ref: 'D' and/or 'F' and the other to fasten by bolts, pins or weld or other means to a gate or door, reference 'E' and/or 'G'. Parts 'D' and 'F' are made from suitable material of sufficient strength to accept the load imposed, the tube (view 'AA' or 'BB') shown in the vertical plain is welded or fixed to the bracketry desired 'D' or 'F' and has a key-way cut or fabricated on the inner or outer wall, thus allowing parts 'E' and/or 'G' incorporating the locking device to pass-over. When the latter mentioned parts 'E' or 'G' is fitted to a gate or door the key-way is positioned so that this can only happen when the gate/door is half way open. The bracketry can have several holes to secure to a post or wall etc., Parts 'E' and 'G' are made from suitable material of sufficient strength to carry gate or door, the tube view ('AA' or 'BB') that is shown in the vertical plain is welded or fixed in some other manner to the bracketry desired 'E' or 'G' which includes the locking device. The bracketry can have several holes to fasten to the gate or door etc. <IMAGE>
Patent GB-2105985-A (GB)
Title: Divan
Inventor: SHEDDON RAYMOND CHARLES
IPC: A47C23/32
Filed: 1982-05-06
Abstract: A divan comprises in combination a base upon which is provided a grid top spring unit that in turn supports a mattress, the grid top spring unit comprising a perimeter border wire having its longitudinal and its transverse wire members bridged by intersecting transverse and longitudinal inner wires that form a grid and to which are connected the larger upper diameter ends of single cone shape springs that are positioned to form a pattern consisting of longitudinal and transverse lines of springs, the smaller or pointed lower ends of transverse line of springs being connected to and supported by cross slats on said base. <IMAGE>
Patent GB-2102255-A (GB)
Title: Two-wire line for digital communication
Inventor: WILDENAUER PETER
IPC: H04B3/23
Filed: 1982-05-18
Abstract: In duplex digital communication over a two-wire line 9, the signal components in the received signal due to crosstalk and echoes of the signal from one's own transmitter 1 are compensated by an adaptive digital filter (10) which includes the parallel arrangement of an adaptive digital transversal filter (11) and an adaptive recursive filter (12), the sum of their output signals (A, B) being the compensating signal. The setting of the recursive filter is decoupled from the setting of the transversal filter, and steps are taken to reduce the extent to which compensation is affected by a counter-signal. In one embodiment a TDM circuit enables the transversal filter to be operated in sections, the sections operating at a reduced rate. <IMAGE>
Patent GB-2102436-A (GB)
Title: Polymeric dispersions
Inventor: MCKAY GARRY MICHAEL
IPC: C09D5/02
Filed: 1982-07-06
Abstract: Aqueous polymer dispersions useful in coating corn positions comprise cationically, anionically or non-ionically stabilised particies in which the particles comprise (a) polymeric modifier as defined, (b) addition polymer, and (c) crosslinking agent, both (a) and (b) containing reactive groups and (c) containing complementary reactive groups. Preferably the dispersions are prepared by polymerising a solution of (a) and (c) in the monomer precursor of (b).
Patent GB-2106723-A (GB)
Title: Power cable joint structure
Inventor: TAKAOKA MICHIO
IPC: H02G15/00
Filed: 1982-07-13
Abstract: In the joint structure for a power cable, a cable insulator (11) covers a cable conductor (10). A reinforcement insulator (13) is mounted on the said cable insulator (11). In the said reinforcement insulator (13) there are dispersed a plurality of electrode spheres (15). The voltage applied in between the said cable conductor (10) and a cable shielding layer (12) covering the said cable insulator (11) is borne by the electrostatic capacities occurring among the said electrode spheres. <IMAGE>
Patent GB-2115692-A (GB)
Title: Carpet fasteners
Inventor: PAGE-JONES GEOFREY
IPC: A47G27/04
Filed: 1982-07-20
Abstract: A carpet fastener, which is securable to the floor of a room and which is of the type having carpet- engaging sharp-ended tangs 53, includes a channel 51 for the accommodation of electrical wiring. The open top of said channel is closed by a releasable snap-fit cover 63. Deformable flaps 57 grip the carpet. Instead of tangs, the carpet may be secured to the fastener by adhesive. <IMAGE>