baber/WOPTO huggingface dataset:
Patent GB-2031312-A (GB)
Title: Sealing joints in moulds
IPC: B22D7/06
Filed: 1979-09-19
Abstract: A method of sealing a joint between component parts (1, 8) of a metal mould for metal casting comprises applying in the area where the seal is desired an elongated sealing element (4), the sealing element being separated from each of the surfaces to be sealed together by a compressible cover (3, 7, 13, 14,) e.g. of cardboard. The method is especially useful for sealing the joint between an ingot mould for steel ingots and a base plate for the mould. <IMAGE>
Patent GB-2061034-A (GB)
Title: Power supply systems
IPC: H05B41/36
Filed: 1979-10-05
Abstract: A power supply system for operating fluorescent lamps in a hazardous atmosphere comprise a 1 kHz to 500 kHz constant current power supply (24 to 28, 31, 32) which feeds primary windings of transformers (3, 4, 5- - -N) which are connected together in series. Fluorescent lamps (11,12,13---Z) are connected across the transformer secondary windings. A voltage control circuit (29, 30) is connected to the power supply output to ensure that the amount of electrical energy supplied to the transformers cannot ignite the atmosphere under any normal or fault condition. Capacitors (6, 7, 8- - -X) are connected in series with the transformer primary windings to reduce the circuit reactance so that, for a given level of supply voltage, an increased number of lamps can be fed with starting voltage. Due to the substantially constant current which is fed througt the transformer primary windings, the situation cannot occur that the firing of one lamp prevents the others from firing. The transformers preferably include windings to feed heaters of the lamps. The lamps may be disconnected from the supply by removal of the transformer cores or by separation of the windings.
Patent GB-2061171-A (GB)
Title: A casting process
IPC: A23G3/02
Filed: 1979-10-22
Abstract: Settable aqueous compositions of organic hydrophilic substances, more especially gelatine compositions for sweets and the like, are cast in absorbent moulds made from set gypsum plaster, shaped by means of a master pattern.
Patent GB-2035332-A (GB)
Title: Stabilized polymers
IPC: C08K5/39
Filed: 1979-11-05
Abstract: Polymers which would otherwise be subject to degradation by the effect of oxygen and/or another atmospheric agent, have incorporated therein as a stabilizer a nickel pyrrolidine dithiocarboxylate of the following general formula:-   <IMAGE> wherein each of R<1>, R<2>, R<3>, R<4>, R<5>, R<6>, R<7> and R<8>, which can be the same or different, is a hydrogen atom or an alkyl group.
Patent GB-2045642-A (GB)
Title: Comminuting and classifying mill
IPC: B02C19/06
Filed: 1979-11-22
Abstract: A comminuting and classifying mill of the re-entrant circulating stream jet type includes a vortex chamber (12) with nozzles (24) for producing a classifying vortex in the chamber. Material is fed in a gaseous carrier from a feed duct (42) tangentially into a feed chamber (34) and hence helically through a recess (32) in one wall of the chamber (12) into the vortex so that the material and carrier gas is added to the vortex with a rotative velocity. <IMAGE>
Patent GB-2039558-A (GB)
Title: Production of a plastics material square mesh net by extrusion and traction
IPC: D04H3/045
Filed: 1979-12-18
Abstract: The process consists of extruding a first set of threads (5) parallel with the extrusion axis, extruding from the same head a second set of threads (6) skew to the first set and intersecting the latter to form a tubing, passing said tubing over a mandrel (7) immersed in a cooling bath, cutting the tubing parallel with and along the first set of threads (5), and subjecting the web thus produced to a uniform traction in the same direction (P) of extrusion and/or in a transverse direction (P'). <IMAGE>
Patent GB-2042540-A (GB)
Title: Process for the preparation of xanthone derivatives
IPC: C07D311/86
Filed: 1980-02-08
Abstract: A process for the preparation of compounds of general formula I, <IMAGE> (wherein R represents a hydrogen atom or an alkyl radical containing from 1 to 9 carbon atoms and R1 represents an alkyl radical containing from 1 to 5 carbon atoms) which comprises cyclising a compound of formula II, <IMAGE> (wherein R and R1 are as defined above, Ar represents an aryl group and R2 and R3, which may be the same or different, each represents an esterifying group) followed if required, by hydrolysis to the free acid of formula I. The compounds of general formula I possess interesting anti-allergic activity.
Patent GB-2074488-A (GB)
Title: The feed of additives for arc welding processes
IPC: B23K9/32
Filed: 1980-04-19
Abstract: A device for feeding weld additives for use in arc welding, especially flux-submerged arc welding, in a uniform controlled flow comprises a chamber for receiving weld additive, the chamber being shaped to define a discharge funnel (8) leading to a discharge orifice (10). A distribution cone (12) located beneath the discharge orifice (10) is operative to distribute additive flowing through the orifice, uniformly to a plurality of receiving apertures (22) arranged around the base of the cone (12). Delivery tubes (24) lead from each of the receiving apertures (22) to the weld zone. The spacing between the discharge orifice (10) and the distribution cone (12) is adjustable whereby to vary the additive flow rate. Lower ends of the delivery tubes (24) direct the additive towards a consumable electrode on to which the additive is attracted (to be carried to the weld zone) by magnetic flux produced by the weld current. <IMAGE>
Patent GB-2049526-A (GB)
Title: <A device for forming transition surfaces at the edges of holes in cylinders
IPC: B24B39/02
Filed: 1980-05-02
Abstract: A device for the forming of transition surfaces (18) between oil passages (17) and a sliding surface (6) of a slide bearing, and more generally for forming surfaces blending smoothly with the sliding surface (6) of the bearing, comprises a mechanism for generating of the pressure force of a burnishing roll (5) and having at least two servos (2,3) acting on a mechanism 4 for transferring of the pressure force to the burnishing roll. The stroke lengths (51, 52) of the servos are limited by means of adjustable stops (12, 16). At least one servo preferably hydraulic servo (2) generates a variable force depending on the changes of the position of its piston (10). The servos are preferably connected in-series. <IMAGE>
Patent GB-2081214-A (GB)
Title: Beverage sachet
IPC: B65D30/08
Filed: 1980-08-07
Abstract: A beverage sachet of laminate material, with a liquid-tight inner layer of thermoplastic plastics material and an intermediate layer impermeable by aromatic substances, comprises two oblong wall panels 11, 12 connected with each other by welded lateral edge seams 19, 20 along their longer edges 17, 18 and an inserted base panel 13, folded inwardly in inverted V-shape in the region of two adjacent shorter edges 21 of the wall panels and welded to each wall panel by a respective U-shaped welded seam 22, 23. The seams 22, 23 are each of substantially greater width than the lateral edge seams 19, 20 and each consist of a transverse section 24, 25 extending along the shorter edge 21 of the respective wall panel and arm sections 26, 26' and 27, 27', which extend parallel to the lateral edge seams 19, 20 and which, in the region of the gusset formed by the inner folded edge 28 of the base panel 13 terminate in outwardly directed tapered portions 29, 29' and 30, 30' at the inner edges of the lateral edge seams 19, 20. <IMAGE>
Patent GB-2089274-A (GB)
Title: Moulds for rotational casting
IPC: B29C41/38
Filed: 1980-08-14
Abstract: A mould 1,2A used for manufacturing inflatable articles by known rotational moulding techniques is provided with means such that articles produced therefrom are permissive of being used:-   (a) tethered to an object such for example as a rock, a peg hammered into the ground, or a groyne, (b) as a recreational device ridden by a human being sitting astride,     (c) without tether attached, as a conventional ball.   Said means are pegs or pins 4A, 4B of suitable dimensions fitted in permanent or removable fashion to the interior surface of the mould. Onto said pegs are pushed the ends of a tube (not shown) of appropriate material and dimensions before commencing the moulding operation for providing a permanent internally integral channel or passageway in the moulded article permissive of threading any suitable tether or handle. <IMAGE>
Patent GB-2082120-A (GB)
Title: A method of updating a postage or other meter
IPC: G07F7/12
Filed: 1980-08-18
Abstract: A metering device 12, such as a postage meter, is updated e.g. by adding credit by a code bearing means which is provided with a first discernible code and a second obscured code, for instance, a magnetic code. A computer 10 stores a third code in association with the first code. The third code is correlated with the second code. Upon obtaining the third code from the computer and providing the third code on the code bearing means, the code bearing means is inserted in the metering device for causing the metering device to be conditioned for updating responsive to said second code and said third code on said code bearing means being in predetermined correlation. <IMAGE>
Patent GB-2084432-A (GB)
Title: Error concealment in digital television signals
IPC: H04N9/79
Filed: 1980-09-18
Abstract: A method of concealing errors in a composite PAL or NTSC digital television signal formed of sample signals corresponding respectively to sample positions along horizontal scan lines of a television picture made up of a plurality of such horizontal lines, comprises, in respect of each sample signal, using a first algorithm to calculate a first expected value of the sample signal, the first algorithm using actual values of adjacent sample signals in the same horizontal line as the sample signal, using a second algorithm to calculate a second expected value of the sample signal, the second algorithm using actual values of adjacent sample signals in the same horizontal line as the sample signal and actual values of adjacent sample signals in the horizontal lines preceding and following the horizontal line of the sample signal, continuously monitoring which of the first and second algorithms gives expected values closer to the actual values, and on occurrence of an error sample signal using the algorithm currently giving the better result to calculate a corrected sample signal to be substituted for the error sample signal.
Patent GB-2053046-A (GB)
Title: Method and device for gentle treatment of spherical balls
IPC: B24B11/06
Filed: 1979-02-09
Abstract: Method and device for treatment of balls, in particular balls for rolling bearings, by gentle mechanical treatment in the presence of a cleaning fluid or the like. According to the invention, the treatment of the entire surface of each ball is accomplished in that the balls are moved between two mutually rotating discs (12, 24) while being forcedly guided (19, 20) in a spiral path outwardly from the centre while skidding.
Patent GB-2086673-A (GB)
Title: A power supply for an electrostatic precipitator
IPC: B03C3/66
Filed: 1980-10-29
Abstract: A power supply for an electrostatic precipitator comprises a high voltage d.c. supply (4) which feeds nominally 60 k.v. continuously to a precipitator (1). D.c. pulses in the range 30-90 k.v. are superimposed on the continuous voltage from the supply 4, by means of a rectifier bridge 6 which rectifies high voltage pulses produced in the secondary of a step up transformer T1, the primary of which is fed with low voltage pulses produced by discharging a capacitor C1 by operation of a switch 11, the capacitor being charged by a supply 12. A further rectifier bridge 5 and a further transformer T1 a may optionally be provided to increase the magnitude of the superimposed high voltage pulses. <IMAGE>
Patent GB-2086996-A (GB)
Title: Auxiliary lubrication system for turbo compressors
IPC: F02B3/06
Filed: 1980-11-11
Abstract: Two accumulators (22, 23) connected to a turbo compressor (2) mounted on a Diesel engine (1) supply lubricant oil (15) to the turbo compressor for lubricating and cooling of the compressor on cold start up and restart of the warm engine (1) and, respectively, on shut down of the engine. When the lubricating system (4) of the engine (1) has, after start up of the engine, reached operational pressure, the turbo compressor (2) is lubricated and cooled and the accumulators (22, 23) are replenished with lubricant oil (14) from the lubricating system (4), valve (27) shutting off supply to accumulator (22) when a predetermined pressure is sensed by sensor (32). <IMAGE>
Patent GB-2101280-A (GB)
Title: Automatic erectors for munitions
Inventor: NOBLE DENNIS TALBOT MORTON
IPC: F42B23/24
Filed: 1980-11-17
Abstract: An automatic erector 1 comprises two rings 4 and 5 between which extend a multiplicity of helical vanes 6. The vanes may be stressed by relative rotation of the rings 4 and 5 to bring the vanes into the form of a cylindrical tube. One of the rings is secured to a weapon 2 and when the other ring is released, on the throwing, rolling or jettisoning of the weapon onto a surface 3, the helical vanes revert to an unstressed state and thereby expand outwardly to form a bulbous ring around the weapon 2. This action constrains the weapon 2 to adopt a predetermined orientation, which may be, for example, upright relative to the surface 3. <IMAGE>
Patent GB-2065182-A (GB)
Title: Fur and/or feather product and method making same
IPC: D03D27/04
Filed: 1980-12-10
Abstract: A pile fabric is woven with conventional warps and groups of conventional wefts and fur warps S each in the form of a natural fur strip of 2 to 20 mm in width between the conventional weft groups. An air jet and/or a suction device is employed to ensure, during weaving, that the hairs H of the fur stand up from the fabric. The fabric may be a plied fabric with the fur weft strips S in one only of the plies and backed by the other ply, or the fur maybe on both faces of the fabric. <IMAGE>
Patent GB-2067583-A (GB)
Title: Cyclodextrin complexes, their preparation, and use thereof to control plant growth
IPC: A01N25/10
Filed: 1980-12-23
Abstract: Complexes of cyclodextrins with 2-chloroethyl phosphonic acid may be prepared by reacting the two components in aqueous solution. The complexes exert the characteristic ethylene hormonal effect on plants, e.g. accelerating ripening and seed germination. For agricultural use the complexes may be formulated with a carrier and/or adjuvant.
Patent GB-2067920-A (GB)
Title: String Stabilised Ribbon Growth of Crystals
IPC: C30B15/30
Filed: 1980-12-30
Abstract: A method and apparatus for stabilizing the edge positions of a ribbon drawn from a melt includes the use of wettable strings drawn in parallel up through the melt surface, the ribbon being grown between the strings. A furnace and various features of the crucible used therein permit continuous automatic growth of flat ribbons without close temperature control or the need for visual inspection. <IMAGE>
Patent GB-2091156-A (GB)
Title: A method of and apparatus for visible radiation marking of a workpiece
IPC: B21C51/00
Filed: 1981-01-16
Abstract: The method comprises the steps of projecting a beam 2 of visible radiation, e.g. a laser beam, towards the workpiece 3; reciprocating the beam such as to cause it to be scanned across the workpiece to produce a visible marking line thereacross; and controlling the reciprocation of the beam such as to cause at least part of such reciprocation to be irregular. The apparatus comprises a scanning mirror 4 connected to control means which cause reciprocation of the mirror to be irregular. <IMAGE>
Patent GB-2076235-A (GB)
Title: High frequency contactless arc generating arrangement
IPC: B23K9/073
Filed: 1981-03-05
Abstract: An electrical welding device which requires no high frequency insulation includes a main power source 3 supplying an arc discharge current through an electrical conductor 4a to the welding electrode 8a. A high frequency power source 5 applies a high frequency high voltage between the electrode 8a and the material 1 to be welded to generate a high frequency discharge for arc ignition in the gap. A high frequency magnetic choke element 11, which is preferably a plurality of stacked annular ferrite discs, surrounds a part of the electrical conductor 4a. A high frequency bypass capacitor 6a grounds the electrical conductor 4a between the magnetic choke element 11 and the main power source 31. An auxiliary power source 32 maintains the arc 10. A further choke element may be located on the earth side of the main power source. <IMAGE>
Patent GB-2072908-A (GB)
Title: Digital radio paging communication system
IPC: H04L7/08
Filed: 1981-03-27
Abstract: A digital radio paging communication system has a transmitter and a plurality of receivers. The receivers are energized intermittently to save battery power. The transmitter generates a preamble signal, a synchronization signal, a plurality of calling signals and a stabilization signal, which are arranged into a sequence of signals including two of the preamble signals separated by a measured time interval and at least one batch signal including the synchronization signal and the plurality of calling signals which are divided into a plurality of groups. Each group of calling signals have a stabilization signal at the leading portion thereof followed by a receiver identifying code. A carrier wave is modulated with the sequence of signals and then transmitted. Each of the receivers receives and demodulates the carrier wave. Responsive to the receipt of a first preamble signal, the receiver switches from intermittent to continuous power at an intermediate stand-by level. If a second preamble signal is received within a predetermined time period, the receiver switches to full power. From there, it either receives its own code and gives a paging signal or it times out. Either way, it returns to the intermittent battery saver mode. The two step raise in the power supply (i.e. from intermittent to full power), eliminates a clipping of initially received paging signals which sometimes occurs in the prior art before the receiver got up to full power.
Patent GB-2074911-A (GB)
Title: Vertical face shake out for foundry molds
IPC: B22D29/02
Filed: 1981-04-16
Abstract: The shake-out apparatus comprises a vibratory vertical wall (25) against which a mold and/or a large casting is pressed while supported by a crane. The wall (25) is suspended from a rigid support structure (10) by vertical isolators (24, 29) and horizontal isolators, e.g. air- springs (30, 31), for vibration in a vertical plane by exciters (35). <IMAGE>
Patent GB-2079811-A (GB)
Title: Thermal insulation panel
IPC: E04B1/80
Filed: 1981-06-25
Abstract: A cold store insulating panel is stiffened by a stiffening element between the outer skins of the panel. The stiffening element is in the form of two sheets 6 of rigid material (e.g. plywood) attached to and separated by a lattice 7 of cured resin impregnated fibre. The sheets 6 of rigid material are bonded to the inner surfaces of the outer skins of the insulating panel and the non- excluded volume inside the panel is filled with an insulating solidified foam material. The outer skins are of steel. <IMAGE>
Patent GB-2081146-A (GB)
Title: Deburring of Sand Cores
IPC: B22C9/18
Filed: 1981-07-09
Abstract: Apparatus for deburring sand cores for casting comprising a holder (5) for the sand core (6) and a device (8), vertically movable above the core holder, from which loosely hang a number of strands (9). Each strand comprises a large number of solid elements (10) which are connected to each other in such a manner that they are movable relatively to one another. The vertically-movable device (8) is connected to a hydro-pulser (11) in such a manner that a burr can be removed from a sand core held in the core holder (5) by the strands which oscillate with the vertically-oscillating device. <IMAGE>
Patent GB-2085620-A (GB)
Title: Timepiece hand and method of manufacture
IPC: C25D1/00
Filed: 1981-08-24
Abstract: A method of manufacturing a timepiece hand is disclosed, whereby the hand can be made extremely thin and lightweight, as well as strong and rigid. The timepiece hand is in the form of an open shell formed of hard nickel electro-forming. Because a minimum of mechanical working is performed upon the hand during the manufacturing process, bending distortion of the hand is avoided, and such a hand can be made substantially thinner than has been possible with manufacturing methods of the prior art.
Patent GB-2084481-A (GB)
Title: Halided Alumina Catalysts and Method for their Preparation
IPC: B01J27/06
Filed: 1981-09-15
Abstract: A halogen containing alumina catalyst for the polymerization of olefins to liquid polymers containing a major part of polymers having a molecular weight higher than the trimers, said catalyst containing from 2 to 20 wt.% of a halogen selected from chlorine, bromine and mixtures thereof, and being prepared from an alumina having a purity of at least 99% and a surface area greater than about 150 m<2>/g with at least 10% of the pores having a diameter higher than about 200 ANGSTROM .
Patent GB-2089499-A (GB)
Title: X-ray Radiation Analyser
IPC: G01N23/223
Filed: 1981-09-22
Abstract: An analysis device for analysing X-ray radiation from a sample of material, e.g. for X-ray fluorescence analysis of a metal alloy, includes a radiation detector (592) and an X-ray radiation filter means (52). The filter means (52) has a plurality of filters (741) positioned adjacent the periphery of a disc (743) which can be rotated selectively to position each of the filters (741) between the sample and the radiation detector (592). The disc is driven by an electric motor through a geneva drive means. Each of the filters comprises a filter bracket attached to the disc (743) with a sheet of filter material mounted on it which preferentially passes the spectral lines of a predetermined chemical element. A plurality of photodiodes are positioned on one side of the path of travel of the filter brackets and a plurality of associated photo transistors are positioned on the other side. Each filter bracket includes areas which are either opaque or transparent so that the absence and presence of the light enables the phototransistors to generate a digital filter identification signal. <IMAGE>
Patent GB-2110281-A (GB)
Title: Seal; glass run
Inventor: TOWNSEND WALTER SIDNEY
IPC: B60J10/00
Filed: 1981-11-26
Abstract: A strip of resilient material used as a glass run or waist seal for a car door window comprises a base (1), side walls (4, 5), arms (9, 19) extending from the region of the walls remote from the base (1), and also removable first and second hooks (11, 21). Over a first length of the seal the hooks (11, 21) are removed so as to permit the seal to be accommodated in a metal channel and to function as a glass run channel with the glass running between portions 6, 16. Over a second length of the seal the base (1) of the channel is removed along lines 14, 24 and the hooks secured to bodywork flanges 61, 63 so that the seal functions as a waist seal. The one-piece strip structure is suitable for use around at least the majority of the window frame of the motor vehicle and obviates the need of using different types of strip structure over different portions of the window frame, with the consequent need to join the different types at appropriate parts of the window frame. <IMAGE>
Patent GB-2089468-A (GB)
Title: Clamping actuator diaphragm
IPC: B60T17/08
Filed: 1981-12-11
Abstract: In a fluid pressure diaphragm actuator, e.g. a brake actuator, the bead of the clamped diaphragm tapers inwardly to counteract inward tension in operation and restraining means are provided around the periphery to prevent outward flow of the bead between clamping flanges of the housing of the actuator. The restraining means may comprise wires 23 and 33, heel 47, ribs 67 or flanges 87, 88. <IMAGE>
Patent GB-2094161-A (GB)
Title: Bingo card holder
IPC: A63F3/02
Filed: 1982-03-10
Abstract: A holder for a bingo card 4 comprises 1 a base 5; a screen 7 having apertures 15 and cover members 9. <IMAGE>