baber/WOPTO huggingface dataset:
Patent GB-2093943-A (GB)
Title: Renovation of tunnels
IPC: B29C63/34
Filed: 1981-03-03
Abstract: A method of manufacturing a tube (1) of non-circular cross-section for lining, e.g. renovating, a tunnel, sewer, pipeline or the like duct comprises the steps of deforming a pre-formed, thin walled circular cross-section pipe (22) into a deformed pipe of non-circular cross-section, wrapping reinforcing strands, e.g. in the form of helical ribs (3, 4), impregnated with a curable binder around the deformed pipe (22), and curing the binder to provide a finished tube held to a desirable non- circular cross-section by the cured binder and reinforcing strands. The invention also relates to a tube manufactured by the method and to a method of lining a tunnel, sewer, pipeline or the like duct using such tubes. <IMAGE>
Patent GB-2075906-A (GB)
Title: Improvement in or relating to apparatus and methods for handling sponge cake material
IPC: A21C3/06
Filed: 1981-04-29
Abstract: Apparatus for forming a piece (20) of sponge cake material into a roll comprises a plurality of laterally spaced conveyors (27) between which are inter- digitated toothed rollers (22) which lift the leading edge 40 of the piece. Between and above the rollers (22) are toothed rollers (23) which fold back the leading marginal edge. Means may be provided for varying or maintaining the tension in the conveyors at stages of roll formation and air pressure (42) may be used to urge the material into contact with the conveyors. On completing the roll, rollers are moved out of the conveyor path or the direction of conveyor movement is reversed to remove the completed roll. <IMAGE>
Patent GB-2076706-A (GB)
Title: Producing a composite center electrode
IPC: H01T13/20
Filed: 1981-05-05
Abstract: A composite center electrode for a spark plug is formed from a corrosion-resistant metal cup (41) having a closed end, walls (43) extending upwardly from the closed end to an open end (44) and a cavity (45) extending concentrically therein. A composite billet is formed having closed and filled ends by inserting into the open end of the cup (41) a billet (47) of a metal having a high thermal conductivity and which fits tightly within the cup walls (43) adjacent the closed cup end (42), but terminating short of the open cup end (44). The cup walls (43) adjacent the open cup end are rolled radially inwardly. The composite billet is extruded into an electrode blank having an upper headed portion (63) and a lower portion (64) of reduced diameter extending longitudinally therefrom. <IMAGE>
Patent GB-2104347-A (GB)
Title: Improvements in or relating to telephone sets
Inventor: POVEY JAMES ARTHUR
IPC: H04M1/673
Filed: 1981-06-19
Abstract: A telephone 1 includes a keyboard 6 permitting personal identification numbers (PIN) and dialled digits to be entered in a microprocessor 4. The microprocessor checks the PIN with numbers stored in a memory 7 to check whether the person is entitled to use the telephone, and checks the initial dialled digit or digits of a telephone number to ascertain which charge band relates to the connection being made. If the person is not entitled to make calls of the ascertained charge band, the microprocessor prevents the dialled digits from being sent via the telephone line 2. It is thus possible to control the use of telephone to which many people have access. <IMAGE>
Patent GB-2090789-A (GB)
Title: A vice for a cutting machine such as a horizontal bandsaw
IPC: B23Q7/00
Filed: 1979-03-30
Abstract: A movable vice 27 which feeds a workpiece M to a fixed vice at the cutting zone has a left hand jaw 33 movable to a large extent relative to the right hand jaw 31 so that the machine can cater for workpieces of different sizes. Each jaw can also be moved away from the other to a smaller limited extent when the movable vice 27 returns, without touching the workpiece M, to the original position of the movable vice 27. Movement of the jaws 31 and 33 is effected hydraulically when fluid is fed to chambers 79a, 79b on each side of a piston 95 and a chamber 129a on one side of a piston 135 against the action of a spring 141. <IMAGE>
Patent GB-2090931-A (GB)
Title: Pipe fitting
IPC: F16L37/084
Filed: 1981-11-09
Abstract: The pipe fitting includes a centre body of predetermined configuration, for example, wye or tee shape, of desired pipe size. The centre body terminates at each of its ends in a lock junction 40 to receive thereon in locked relationship an end hub 26 of the type suitable for receiving and interconnecting the spigot end 20 of a length of plastic pipe 14. Each lock junction includes a shoulder 28 upon which the end hub is seated, a lock 42 and a circular, peripheral recess 32 positioned between the shoulder and the lock. The end hub includes an inwardly inclined projection 44 to cooperate with an securely seat within the centre body lock. A circular gasket 34 is secured within the circular recess and biases against a portion of the inner periphery of the end hub to prevent leakage between the parts. <IMAGE>
Patent GB-2113795-A (GB)
Title: Pipe replacement
Inventor: MARSH JOHN
IPC: F16L55/16
Filed: 1982-01-22
Abstract: Apparatus for use in replacing an existing underground pipe comprises a frusto-conical member in the form of an expander cone (21) which is adapted to engage a pipe which is to be replaced, the smaller end of the cone being arranged to have a smaller diameter than the internal diameter of the pipe and the larger end of the cone being arranged to have a diameter which is at least as great as the external diameter of the pipe. A jacket (29) is secured to the larger end of the cone (21) and an impact mole (31) is provided for driving the expander cone (21) into the pipe to cause the latter to be forced radially outwards and compressed into ground surrounding the existing pipe. An impact locking ring (33) is arranged to engage the rear end of the mole (31) and a fixing ring (37) is secured by bolts (39) to the rear face of the expander cone (21). The ring (37) is provided with a joint (38) by means of which a section (41) of a replacement pipe may be secured to the apparatus.
Patent GB-2122176-A (GB)
Title: Impact-resistant wear plate
Inventor: GRIFFITHS MICHAEL
IPC: B65G11/16
Filed: 1982-05-27
Abstract: In a wear plate, such as is described in Patent Application No. 81 29996 (Publication No. 2 107 288 A) for lining chutes for handling abrasive material, comprising an array of ceramic tiles moulded into elastomeric material, providing a resilient bed and inter-tile fillets, which may be carried by a backing plate with means for mounting it on a surface to be provided with a wear- resistant facing, the bases (19) of the tiles (15) are concave so as to espouse in the elastomeric bed a complementary convex cushion as a centralising support against impact. <IMAGE>
Patent GB-2103456-A (GB)
Title: Digital data transmission systems
Inventor: DUDEK MICHAEL THOMAS
IPC: H04L27/34
Filed: 1982-06-21
Abstract: Serial data bits are formed into parallel bit groups X1-X6 and a sub-group of bits X1, X2 determines the quadrant in which the phase of a carrier is to lie while the remaining bits X3-X6 of the group determine the phase and/or the amplitude of the carrier within the selected quadrant. The quadrants have a degree of rotational symmetry, and data signal combinations giving rise to adjacent amplitude/phase values differ from one another in accordance with a Gray code. An encoding and a decoding gating network are given. Two carriers in phase quadrature may be modulated. <IMAGE>
Patent GB-2122359-A (GB)
Title: Force transmitter
Inventor: MORRIS JOHN LESLIE
IPC: G01G21/23
Filed: 1982-06-26
Abstract: To produce an output independent of the point of application of a force F on the surface of a member (10), the transmitter comprises first and second spaced supports (11), (12) and first and second beams (13), (17) which have respective fulcra (14), (18). A link (20) connects the first and second beams (13), (17). The arrangement is such that the a/c = b/d where a is the distance between the first support (11) and the first fulcrum (14), b is the distance between the second support (12) and the second fulcrum (18), c is the distance between the link (20) and the first fulcrum (14), and d is the distance between the link (20) and the second fulcrum (18). The resultant force R which appears at an output (15) at an end of the first beam (13) is independent of the position of application of the force F on the member (10). The transmitter forms part of a weighing apparatus. <IMAGE>
Patent GB-2123469-A (GB)
Title: Mine roof support unit
Inventor: VAVILOV VYACHESLAV VIKTOROVICH
IPC: E21D23/00
Filed: 1982-07-08
Abstract: A powered mine roof support unit wherein in a face section (4) of a base (3) there is a hydraulic ram (13) the thrust bar (14) of which, displacing at right angles to the direction of travel of a thrust bar (10) of a hydraulic ram (7), interacts with a pusher (11) by way of a slide (15) movably linked to the base (3). The pusher (11) rests on the floor and serves, whilst advancing the roof support unit, as a guideway for the slide (15) which is permanently pressed against the pusher (11) by the thrust bar (14) of the hydraulic ram (13) due to a pressure on the piston end thereof permanently connected to a source of pressure. The face section (4) of the base (3) is capable of lifting clear of the floor when the hydraulically-operated legs (2) are being adjusted for length, keeping the canopy (1) in a contact with the roof at the same time. <IMAGE>
Patent GB-2125840-A (GB)
Title: Cavity closure
Inventor: LAWSON GEOFFREY
IPC: E04B1/41
Filed: 1982-07-29
Abstract: The closure has an elongate body part 100 with a first wall skin contact region 101, of greater extent, and a second wall skin contact region 102, of lesser extent. Flanges 103 and 104 are provided alongside the first contact region 101 for fixing the cavity closure to a wall skin. Flutes (102, 108, 109) and ribs (106, 107) or steps (110, 111) may be provided to assist moisture drainage and prevent damp penetration. The cavity closure may be formed of a plastics material in one piece by extrusion, with a hollow or solid section. <IMAGE>
Patent GB-2108719-A (GB)
Title: Image formation apparatus
Inventor: SUZUKI KOJI
IPC: G03G15/02
Filed: 1982-10-08
Abstract: Image formation apparatus in which various different devices cooperate for the formation of a latent image on a recording medium and in which a detector is provided for detecting a surface condition of the recording medium. A controller controls latent image formation and also determines from considering the time since the apparatus was last used, for example, whether or not a regulating operation is to be performed prior to latent image formation for the control of an operational parameter of at least one of the latent image formation devices, for example the current supplied to an electrostatic charging device. The controller determines the mode of regulating operation to be so executed. In the disclosed apparatus the number of times of performance of a correction operation for the correction of the operation of the particular device or devices concerned is determined. <IMAGE>
Patent GB-2129949-A (GB)
Title: Shear beam load cell system
Inventor: STERN HARRY
IPC: G01L1/22
Filed: 1982-11-09
Abstract: A load measuring longitudinally extended beam member (12), having a central axis (24) extending in a longitudinal direction (22) comprises flexure isolation means (26) formed on opposing longitudinal end sections (28, 30) of the beam member for minimizing strain on a central section (32) of the beam member (12) responsive to load displacements on the beam member (12). A multiplicity of strain gauge members are secured to the central section (32) of the beam member (12) on web flexure means formed within the central section (32) of the beam member (12) by recesses 60. The shear beam load cell system (10) minimizes stress changes in the central section (32) of the beam member (12) which is responsive to non-measurement loads applied to the beam member (12). The beam member is bolted to a structure by threaded openings 74, 76, 78 for measuring a load. <IMAGE>
Patent GB-2123112-A (GB)
Title: Shock absorber with electrical coupling
Inventor: JUNICHI EMURA
IPC: B60G17/08
Filed: 1983-03-15
Abstract: In a shock absorber S for an automotive vehicle, which requires electrical power e.g. to adjust the damping force the piston rod 2 is provided with a socket portion 15 bored out at the top end thereof, to which one of a pair of male and female plug-in connector terminals 5a, 5b is fixed for easy connection of internal electrical elements housed within the piston rod to external electrical elements fixed to the car body. Additionally, if a ribbon connector is used within the piston rod for connecting the internal electrical elements to the plug-in connector terminal, it is possible to prevent disconnection or short-circuit caused by vibrations of the shock absorber. The internal electrical elements housed within the piston rod may be a working fluid temperature sensor, or a potentiometer sensing the position of an orifice adjuster. <IMAGE>
Patent GB-2119218-A (GB)
Title: Process for the preparation of soymilk
Inventor: HUNTER GEORGE L K
IPC: A23L11/00
Filed: 1983-04-29
Abstract: A low cost soymilk that provides excellent nutritional quality, flavor and stability can be produced from the whole soybean on a commercial scale using a process which comprises the steps of   (a) forming from ground or milled dehulled soybeans an aqueous soybean slurry; (b) adjusting the alkalinity of said soybean slurry to a pH of 8.5 to 9.5 by adding an alkaline agent thereto; (c) cooking said soybean slurry for such a time that the pH of said slurry drops to a pH in the range of 7.5 to 8.2; (d) neutralizing the soybean slurry to a pH of 7.0 to 7.4 with a strong mineral acid and then, if desired, adding further ingredients thereto to formulate a soymilk beverage; and   (e) homogenizing said soybean slurry to a homogenized soymilk.   The process does not require the conventional curd precipitation and centrifugation steps necessary for the removal of nonprotein components, sugars and fibrous materials.
Patent GB-2123335-A (GB)
Title: Moulds of rigid plastics foam
Inventor: CROWTHER M A
IPC: B29C33/38
Filed: 1983-06-27
Abstract: In one embodiment (Figure 3) a self-skinning polyurethane foaming mixture is poured into a mould comprising a tapered dam (2) with a shaped panel (1). When set the mixture forms a pattern (3) with a hard, smooth surface, which can be used to cast a metal die, or to produce a sand mould for casting. A multi-part jig can also be made using such moulded plastics parts. <IMAGE>
Patent GB-2132662-A (GB)
Title: Drill bit
Inventor: TAKANO SHO
IPC: E21B10/16
Filed: 1983-10-21
Abstract: A drill bit for drilling a hole in ground comprises a cutter body (1) having an end for attachment to a drill pipe, a plurality of radial shafts (3) mounted on an opposite end of said cutter body and extending away from said opposite end toward a central axis of said cutter body at an angle thereto, a plurality of rolling cutters 4, 5, 6 rotatably mounted on said shafts, respectively, for drilling a hole in ground. The rolling cutters support thereon a plurality of tip blades 4a, b, c, d, etc for leaving ridges on the bottom of the hole, the ridges having heights greater than a depth that said rolling cutters can cut during one revolution of the drill bit. <IMAGE>
Patent GB-2129494-A (GB)
Title: Casings for multi-stage centrifugal pumps
Inventor: PROKASKY DETELEF
IPC: F04D1/06
Filed: 1983-10-27
Abstract: A casing member 4 of the pump is cut from a steel sheet and has an interior 18 formed by machining. The member is provided with holes 12 through which tie rods 9 pass to clamp the pump stages between an outlet casing 10 and the member. Bolts 15 secure an inlet casing 7 to the member 4. <IMAGE>
Patent GB-2136935-A (GB)
Title: Firearms
Inventor: HARNESS JOHN
IPC: F41A21/48
Filed: 1984-03-26
Abstract: A firearm, especially of the type used to disperse rioters, comprises a gun body (10) with a breech block (16) secured by a catch (20) and having a snap fit arrangement (34) for releasably mounting selective barrels, for example barrel (32). The barrels are interchangeable and can be of different lengths to be suitable for firing different types of ammunition. One or more of the barrels is also adapted to receive a barrel insert which enables the riot-gun to fire ammunition of different calibres. The riot-gun is therefore adaptable to fire ammunition such as large- or small-calibre flare rounds, baton rounds, gas cartridges and live ammunition. <IMAGE>
Patent GB-2140545-A (GB)
Title: Refrigerating evaporator
Inventor: BESSON DUILIO
IPC: F25D11/04
Filed: 1984-04-17
Abstract: A refrigerating evaporator for chest-type freezers comprises a metal casing 20 around which a continuous pipe coil 27 connected to the compressor 31 for the refrigerating fluid is wound and fixed by means of adhesive strip, said casing being incorporated in a layer of insulating material to form the cell of a freezer, the metal sheet (20) being cut and bent so as to produce an open box-like body (21) having a substantially parallelepipedic upper portion (22) and a lower portion (23) with a vertical bevelled corner (24) to create a recess which is substantially of triangular section, within which said compressor (31) is housed. The bottom opening (28) of said body and the substantially triangular opening (29) formed in the bottom of said upper portion at said bevelled corner (24) of said lower portion are both closed off by respective panels before the evaporator is fitted into the insulating material. <IMAGE>
Patent GB-2143338-A (GB)
Title: Transversal filter for electromagnetic waves
Inventor: GASSMANN GERHARD G
IPC: G02B6/28
Filed: 1984-06-25
Abstract: The transversal filter makes it possible to reject or pass a frequency ( omega o) with which an electromagnetic wave is intensity-modulated. To accomplish this, the transversal filter (2, 3, 4, 5) is tuned to the frequency of the modulating signal rather than the frequency of the carrier wave as is the case in the prior art. In the case of electromagnetic waves whose frequencies lie in the optical frequency range, a frequency discriminator can be implemented simply by placing an optical-to-electric transducer (7) behind the transversal filter (2,3,4,5). <IMAGE>
Patent GB-2161553-A (GB)
Title: Synchronised mechanical-hydrostatic transmission
Inventor: HEDLUND BO
IPC: F16H47/02
Filed: 1984-07-11
Abstract: A synchronised mechanical-hydrostatic transmission for a vehicle with infinitely variable drive ratio including a hydrostatic transmission (3,4) and a following mechanical gearbox (5) coupled thereto. The hydrostatic transmission includes a hydraulic transmission motor (4) with variable displacement which is connected to the mechanical gearbox (5). The mechanical gearbox has at least two alternatively- selectable gear ratio stages, and the gear ratio is changed automatically by selector valve means (17) and clutches (11,11') when the displacement of the hydraulic motor (4) reaches its minimum value, under control of a speed-control valve (16). Means (18,21) is provided for altering the displacement of the hydraulic motor (4) on alteration of the gear ratio of the mechanical gearbox to an extent corresponding to the gear ratio change, so as to synchronise the output shaft (7) of the hydrostatic transmission to the mechanical gearbox. <IMAGE>
Patent GB-2152723-A (GB)
Title: Electronic cash registers
Inventor: SHIONO FUSAHIRO
IPC: G07G1/14
Filed: 1984-12-06
Abstract: A master/slave electronic cash register system includes a plurality of slave electronic cash registers SL1, SL2 and a master electronic cash register MA, connected to each slave electronic cash register via a data communication line L1. Each slave electronic cash register includes a keyboard panel to introduce a customer code number and the transaction data related to the customer in the registration operation. The thus introduced customer code number and the transaction data are transmitted to the master electronic cash register, and stored in a predetermined memory section in the master electronic cash register. When a desired customer code number is introduced from a keyboard panel included in the master electronic cash register in the payment operation, the transaction data related to the customer code number is read out from the predetermined memory section so as to conduct the payment operation at the master electronic cash register. <IMAGE>
Patent GB-2159021-A (GB)
Title: Voice frequency repeater
Inventor: SZAJNBERG MORDKA
IPC: H04B3/36
Filed: 1985-03-25
Abstract: A voice frequency repeater for a telephone circuit between two distant stations for amplifying voice signals in both directions, which comprises amplifiers for the voice signals arranged to prevent oscillation of the loop formed by amplifiers the amplifiers being arranged, in operation, to be indistinguishable from hybrid circuits and including operational amplifiers. For each direction, a hybrid circuit 3, 4 couples a balanced input through the repeater and also to the output of the opposite direction amplifier as a common mode signal so as to effect cancellation and to prevent oscillation. <IMAGE>
Patent GB-2173944-A (GB)
Title: Construction of porous impregnated cathodes for discharge tubes
Inventor: BRETHERTON RICHARD MOLE
IPC: H01J61/073
Filed: 1985-04-18
Abstract: A cathode for a gas discharge lamp is produced by impregnating a porous conductive material with the lower work function material. After impregnation, the cathode is treated to prevent the lower work function material from being exposed on the surface of the impregnated material. This treatment can either be carried out by removing some of the lower work function material from the exposed faces of the cathode, or by covering the material which is exposed on the exterior of the cathode by another material which has a higher work function.
Patent GB-2167232-A (GB)
Title: Variable capacitor
Inventor: ITO YASUFUMI
IPC: H01G5/01
Filed: 1985-09-17
Abstract: A small-sized variable capacitor has poles (18a to 18d) mounted to the baseplate (18) of the capacitor. The poles have protrusions (18f) upstanding on the surfaces of the poles on which the stator plates (1) rest. The stator plates (1) bear on, and are retained by, the inner walls of these protrusions (18f). <IMAGE>
Patent GB-2182112-A (GB)
Title: Connection means
Inventor: WATTS ANDREW DOUGLAS
IPC: E04B1/26
Filed: 1985-09-20
Abstract: A connection member for elongate timbers comprises at least two socket members (1, 2, 3) formed as sections of hollow tubing and connected together with their axes perpendicular such that a first socket member (1) is open at both ends and the or each other socket member (2, 3) has one end closed by the wall of said first socket member (1), wherein at least one wall portion of each socket member (1, 2, 3) has a punched out section whereby an axial flange (11) of wall material protrudes inwardly of the socket member (1, 2, 3). Preferred embodiments of the invention comprise connection members having 2, 3 or 4 other socket members connected to said first socket member. Preferably the socket members are of rectangular, and especially square, section. <IMAGE>
Patent GB-2167476-A (GB)
Title: Reflective road marking device
Inventor: FOSTER IAN HAROLD
IPC: E01F9/619
Filed: 1985-11-06
Abstract: A reflective device, for use in marking a route, comprising a moulded three dimensional strip 10 of compound or synthetic plastic having at least one reflective surface 11 and an anchor tail or spike 14 attached thereto for location of the device, in use. The strip 10 may be longitudinally extending with a triangular transverse cross-section and end faces 13 extending at an acute angle to the base 12 thereof. <IMAGE>