baber/WOPTO huggingface dataset:
Patent GB-2055589-A (GB)
Title: Board Game
IPC: A63F3/02
Filed: 1980-01-17
Abstract: A game board is divided into at least two equal playing areas, each area being sub-divided into a multiplicity of playing positions arranged in a series of adjacent columns and defining from one column to the next a series of lines of playing positions. Each playing area includes a base area having a base position at the intersection of four adjacent playing positions. The playing pieces for each playing area comprise fourteen pegs of a single unit value and equally divided into those which can move diagonally between playing positions and those which can move along a line or column, and four pegs of a double unit value which can move either diagonally or along a line or column. The pegs are coloured and are darker at their base which are star-, round-, or cross-shaped. <IMAGE>
Patent GB-2074400-A (GB)
Title: DC to AC inverter
IPC: H02M7/538
Filed: 1980-01-22
Abstract: The inverter is used in synthesising a sine wave and comprises two transformers, a major transformer and a minor transformer operated in effect as two separate inverters whose primary windings 10A, 12A work in parallel from the same DC source. The secondary windings 10B, 12B of the two transformers are connected in series. Switches S1-S4 connected to the primary windings are controlled in such a way as to produce bidirectional pulse trains at the transformers' respective secondary windings. Short circuit clamps are connected across either the primary windings or secondary windings or tertiary windings to short circuit said windings when the associated primary winding is disconnected from the DC source by the switches. <IMAGE>
Patent GB-2043224-A (GB)
Title: Method and apparatus for drying granular material
IPC: F26B17/10
Filed: 1980-02-12
Abstract: A method and apparatus for drying granular but lumpy material 3 comprises a drying process divided into three parts, which drying takes place in a preliminary drying device, a pulverising and drying device, and a subsequent drying device 6. The preliminary device and the pulverising device may comprise respectively radial arms on a horizontal, rotatable shaft, and a wheel on the same or a different, offset, shaft, and both devices may be in a common casing 1. Hot gas 5 is delivered to the casing 1, and acts, with the arms of the first device, to transport the material through the casing to a flow drier 6. Coarse material may be recycled via 8. <IMAGE>
Patent GB-2045078-A (GB)
Title: An improved pool construction
IPC: E04H4/14
Filed: 1980-02-14
Abstract: A pool, such as a swimming or ornamental pool, comprises a bottom of sheet material 10, a vertical wall section 15 of pliable sheet material, both of which may be of vinyl-coated sheet steel, and a flexible extruded junction member 11 grooved to receive the edge portion of the pool bottom, and also the bottom edge portion of the wall section. Each of the said sections is held in a sealed manner in the junction member by a resiliently deformable sealing strip 14, 21 driven into the junction member adjacent to the bottom and wall sections. In a modification, Figure 5, (not shown), the junction member has only a single groove containing a single sealing strip and the material of the pool bottom is bent downwardly into the groove. <IMAGE>
Patent GB-2047537-A (GB)
Title: Vapour dispensing devices
IPC: A01M29/12
Filed: 1980-04-10
Abstract: Vapour, such as airfreshener and/or insect repellent, is dispensed into the atmosphere from a source 2 in a container 1 by so- called "airfern" which is an animal colony (Sertularia Agenta or Hydrallmania Falcata) found in underwater locations. After suitable processing the airfern has the appearance of a fine fern plant. The method of processing includes pressing to extract animal matter, drying and immersion in a mixture of glycerine and wayer, and dyeing.   <IMAGE>
Patent GB-2051819-A (GB)
Title: Epoxy resin adhesive composition
IPC: C08G59/42
Filed: 1980-06-11
Abstract: An adhesive useful in bonding a foil-type strain gage comprises a cross-linked resin layer resulting from the admixture of a selected epoxy resin and a predetermined amount of trimetallic anhydride as a hardener, enough tetrahydrofuran solvent as needed to facilitate proper application of the two-component resin composition. Upon elevation to a moderate curing temperature for a relatively brief time, sufficient cross-linking occurs to permit the installation to remain set in place without clamping or the like, and somewhat higher-temperature post cure then assures that the installed gage will be highly stable and, in particular, will exhibit very low creep.
Patent GB-2059822-A (GB)
Title: Vices
IPC: B25B1/02
Filed: 1980-09-12
Abstract: A vice comprises a fixed jaw 2 mounted on a vice body, a movable platform 4 mounting a movable jaw and fully supported by and mounted for movement with respect to the vice body in a direction away from a fixed jaw 2 on the body for an opening movement and in a direction towards the fixed jaw for a closing movement. <IMAGE>
Patent GB-2073717-A (GB)
Title: Bobbin changer for splicing successive reels of web
IPC: B65H19/18
Filed: 1981-04-10
Abstract: A bobbin changer, for use in producing a continuous supply of web by joining the webs from a succession of reels, comprises a splicing device (34) for joining the leading end of the web on each new reel to the web on the expiring reel and at least two cradles (10; 11) for receiving and supporting reels of web during use. Each cradle has means (60, 62) for locating the end of the web of a new reel in readiness for splicing. The cradles are movably supported so that each cradle in turn can be moved from a standby position to a position aligned with the splicing device in preparation for a splicing operation. The leading end of the new web is preferably clamped (at 60, 62) and a reciprocating knife and plate is used to sever the expiring web and adhesively attach it to the new web leading end which is also retained by suction ducts. <IMAGE>
Patent GB-2096557-A (GB)
Title: Slat conveyor in a filling bunker
IPC: B65G17/06
Filed: 1981-04-15
Abstract: A filling bunker comprises two sidewalls, and a bottom portion formed by the upper, working, pass of an endless conveying member (4) which circulates around spaced return rollers. The conveying member (4) is constituted as a slat conveyor the slats (6) of which overlap each other in the zone of the conveying member (4) intermediate the return rollers. The slats (6) are connected adjacent their leading edges to chain means (7) closed in a loop around chain wheels (8) disposed adjacent the return rollers. By making the pitch of the chain wheels (8) associated with the downstream return roller, considered relative to the direction of advance of the conveyor upper pass, greater than the pitch of the chain wheels (8) associated with the upstream roller, and by suitable choice of the degree of overlap of the slats (6), these slats (6) are arranged to remain overlapped as they pass around the downstream roller, while opening apart as they move around the upstream roller. <IMAGE>
Patent GB-2096678-A (GB)
Title: Folding doors
IPC: E06B3/48
Filed: 1981-04-15
Abstract: A folding shutter door is made up from a plurality of pivotally interconnected leaves 10 supported on a foldable trellis arrangement 12 by a plurality of pickets 18 which pivotally carry neighbouring pairs of leaves. To facilitate replacement of damaged leaves without the need to dismantle the entire door the pickets include at least two separable sections 22, 24. <IMAGE>
Patent GB-2078208-A (GB)
Title: Web Feeding Machines
IPC: B65H23/188
Filed: 1981-06-12
Abstract: A web feeding machine comprises two pairs of nip rollers (28, 30) driven so that the ratio of the linear speed of the web (10) through the second downstream nip to that through the first nip is constant and has a value greater than one. A variable speed drive (32 for driving the nip rollers (28, 30) is controlled in response to the tension T1 in the web (10) upstream from the first nip and the tension T2 between the first and second nips (measured at sensors 25,31 respectively) so that the angular velocity  omega  of the rollers satisfies the expression:-   <IMAGE> where A, B and C are constants. By controlling the angular velocity of the rollers (28, 30) and hence the linear speed of the web (10) in accordance with this expression, a constant flow rate of the web (10) is ensured irrespective of the elasticity of the web (10) or the overall speed of its feed and the length of web delivered from the rollers (30) per unit of time is constant when measured at zero tension. <IMAGE>
Patent GB-2085648-A (GB)
Title: Carbon monoxide laser
IPC: H01S3/097
Filed: 1981-03-31
Abstract: A gas laser operating at room temperature, consisting of a cylindriform sealed tube (1) with two electrodes (3) of gold or a gilt material and filled with nitrogen with a partial pressure at room temperature of 0.1-2.0 torr, xenon with a partial pressure of 1.0-3.0 torr, carbon monoxide with a partial pressure of 1.0- 3.5 torr, helium with a partial pressure of 15-30 torr and possibly oxygen with a partial pressure of not more than 60 mtorr. The laser tube may be equipped with a hollow metal mirror (5) provided with a 100% reflecting gold coating and a flat mirror (6) being a partially transparent window, Further it may contain a zeolite (8).
Patent GB-2092290-A (GB)
Title: Gas Lamp
IPC: F21S13/00
Filed: 1982-01-07
Abstract: A lamp comprises a base (11) having a recess therein, a gas reservoir (G) containing a combustible gas in the recess (R), a gas burner (19) mounted on the base (11) adapted to project a flame (F) of burning gas upwardly, control means (21), the burner having a shroud (20) with an outer end of reduced cross-section with an opening (25) through which gas from the burner (19) passes and from the flame (F) is projected upwardly, the shroud resembling the top of a candle, and/or a lampshade (18) mounted on the base (11), the lampshade having an opening (22) above the burner (19) through which hot combustion gases may escape. <IMAGE>
Patent GB-2114019-A (GB)
Title: Indication of defective filter elements in filter plants
Inventor: GODDING RONALD GEORGE
IPC: G01M3/20
Filed: 1982-01-13
Abstract: A dust-filter plant comprises a number of individual filter elements arranged in parallel. In order to see that the dust to be filtered is not passing unimpeded through any of the elements, each element is checked in sequence for the presence of dust on its clean air side. Apparatus for carrying out this checking includes a multi-port rotating switching valve (5) for sampling air from the clean air side of each filter element in turn, and arranged to stop when dust is detected by an associated detector (3), indicating means associated with the switching valve (5) thereby indicating which of the filter elements is defective. <IMAGE>
Patent GB-2091704-A (GB)
Title: Improvements Relating to Removing Particulate Material from a Container
IPC: B22C9/04
Filed: 1982-01-21
Abstract: A container such as a casting box (10) for use in a foundry plant includes a fluidising means (20) to enable sand or other particulate material in the box (10) to be fluidised and hence easily removed from the box through a small duct (24), which may be flexible and movable into a discharge position. The casting box (10) has side walls (14) with porous inner skins whereby the box may be evacuated to compact the sand before a pattern is volatised by the hot casting metal to form the casting. <IMAGE>
Patent GB-2093387-A (GB)
Title: Welding machine for making brake shoes
IPC: B23K37/04
Filed: 1982-02-16
Abstract: A welding machine for welding together the lining plate (7) and the web plate (8) of brake shoes comprises a welding wheel (1) which receives the brake-shoe parts and which holds them in a state braced relative to one another. To guarantee especially accurate and uniform running of the welding wheel (1) and to achieve welding beads between the lining and web plates which are placed correspondingly precisely by electrodes (9), the welding wheel (1) is guided both radially and axially via a single ball-bearing (11), the diameter of which corresponds approximately to that of the welding wheel. <IMAGE>
Patent GB-2093383-A (GB)
Title: Adjusting apparatus for a broaching tool
IPC: B23D41/04
Filed: 1982-02-23
Abstract: An adjusting apparatus for a vertical broaching tool comprises a support body (25) and at least one cutting element (16) mounted thereon. The cutting element (16) is adjustable, in the area of its rearmost holder (24) in the broaching direction (14), perpendicular (37) to the broaching direction by elastically deforming the holder (24) by means of a pressure member (32) exerting a force on the cutting element (16) or on a deformable part 31 of the holder. <IMAGE>
Patent GB-2095220-A (GB)
Title: Concentrating antimony and tin
IPC: C22B1/04
Filed: 1982-03-04
Abstract: A process for the concentration of antimony and tin in the oxide state from the respective ores or by- products, characterised in that, in a single stage, one obtains, by means of air and/or oxygen and carbonaceous material (such as poor-quality coal), a volatilization of the sulphides and/or oxides, followed by oxidation in the gaseous phase of the sulphides to oxides. Antimony and/or tin in metallic form are obtained in the absence of the air and/or oxygen. An apparatus for carrying out the process is a reactor having a frustoconical outline, consisting of a metal casing (2) internally lined by a refractory lining (3), the reactor being rotated about its axis (1), which is arranged vertically, and is equipped with a bottom drain hole (5) so that the solid material charged therein adheres, due to the effect of the several forces in play, to the inner walls of the reactor and the liquid substances which are produced are allowed to flow down through the drain hole. <IMAGE>
Patent GB-2096097-A (GB)
Title: Telescopic jib cranes
IPC: B66C23/76
Filed: 1982-04-01
Abstract: A crane has a chassis 18 and a telescopic jib having a lowest telescopic section 1 pivoted to the chassis and movable in a vertical plane by one or more luffing rams 19. Extending perpendicularly from the section 1 is a frame 5 braced by cabling connecting the frame to the foot end of the jib, and connected by cabling 9 with an extensible telescopic section. A counterweight 22 is supported on a mast 21, the inclination of which is adjustable by winch 24 either to maintain the counterweight at a fixed position relative to the chassis or to vary the position of the counterweight so as to vary the moment imparted by the counterweight to compensate for changes in moment as the jib is raised or lowered. <IMAGE>
Patent GB-2097293-A (GB)
Title: High gradient magnetic separation
IPC: B03C1/00
Filed: 1982-04-08
Abstract: In a process in which magnetic material is trapped in a filter disposed in a magnetic field, and is unloaded by passing a fluid through the filter in the absence of the initial magnetic field, the magnetic field is first reduced to an intermediate value to allow unloading of the more weakly magnetic particles, the more strongly magnetic particles being retained and subsequently unloaded by further reduction of the magnetic field. Stage by stage reduction of the magnetic field during unloading allows separation of different species from the mixture.
Patent GB-2099536-A (GB)
Title: Guard system
IPC: F16P3/14
Filed: 1982-05-12
Abstract: A guard system for a crankshaft driven machine tool such as a press brake includes a photo electric curtain 22 which observes a danger zone of the machine. If broken during the cycle of operation of the machine contacts 14 in the clutch control circuit will be opened to disengage the clutch. If the curtain is broken during the normal period required for the machine to come to rest at the end of a working stroke, an alarm 43 is activated and the control system of the machine then requires to be reset before a further working stroke of the machine can be effected. <IMAGE>
Patent GB-2100948-A (GB)
Title: Push-pull amplifier
Inventor: HOTVET DAVID A
IPC: H03F3/20
Filed: 1982-06-09
Abstract: A class B power amplifier of the dual-complementary symmetry type is provided with a low impedance voltage multiplier input driver stage (14, 36, 44, 45) to materially reduce the "dead band" and thereby reduce "cross-over" distortion. Internal D.C. feedback (48,49) reduces the input voltage swing required and the non-linearities that may occur before the gain is reduced by overall voltage shunt feedback (18, 19, 50) which stabilizes transresistance. This reduces harmonic distortion. <IMAGE>
Patent GB-2102406-A (GB)
Title: Utilising waste products from coal fired power stations to form stopping materials for underground mining
Inventor: HOLTER HEINZ
IPC: E21F15/00
Filed: 1982-06-16
Abstract: The waste products arising from cleaning and desulphuration of the flue gases from coal-fired power stations are used to form underground stopping and/or backfill and gallery consolidating materials by mixing the waste products in the form of gypsum and filter ash or boiler slag with wet or dry calcium chloride from the flue gas washing stage and preferably adding binders, hardeners and cement, the waste heat from the flue gases being used to dry the CaSO4 product obtained from the washing stage and also to evaporate the calcium chloride-containing washing water.
Patent GB-2100894-A (GB)
Title: Motor slip controller for AC induction motor
Inventor: MUSKOVAC NICHOLAS GEORGE
IPC: G01R31/34
Filed: 1982-06-24
Abstract: An energy-saving controller for a multiphase AC induction motor controls the average voltage supplied to the motor windings by the use of a pair of anti-parallel connected SCR's of opposite polarity connected to each winding. The conduction of the SCR's is varied in response to a slip signal derived from the voltage across each pair of SCR's, the line voltage, and the current flow through each phase of the motor winding. <IMAGE>
Patent GB-2102720-A (GB)
Title: Glove box
Inventor: FORSTER WALTER
IPC: G21F7/053
Filed: 1982-07-16
Abstract: The glove box has a sleeve (2) for a bag (4), more particularly a glove, which is held in place between the inside of the sleeve (2) and an elastic ring (7) which is snapped into the sleeve (2). <IMAGE>
Patent GB-2104816-A (GB)
Title: Apparatus for the releasable attachment printed circuit boards on an electro-plating frame
Inventor: WITTMEIER ALFRED
IPC: C25D17/06
Filed: 1982-07-23
Abstract: The apparatus comprises rotary drive means 1 for screwing in and unscrewing the attachment screws 9 which mount the circuit boards 16 on the frame 15. The drive means is capable of engaging simultaneously a plurality of screw heads lying in substantially the same plane, and preferably comprises a plurality of independently operable pneumatically-powered drive units 5 with an individual detector switch to control each drive in accordance with the operation required. <IMAGE>
Patent GB-2126429-A (GB)
Title: R f balanced mixer
Inventor: BATES ROBERT NEIL
IPC: H03D9/06
Filed: 1982-08-27
Abstract: An R.F. balanced mixer comprises on an insulating substrate with opposed major surfaces a balanced first transmission line having a pair of conductors (18, 19) on a first major surface and an unbalanced second transmission line having a strip conductor (15) on one major surface and a ground conductor on the side of the substrate remote from the strip conductor (15). Two diodes (24, 25) are conductively connected between the pair of conductors (18, 19) of the first line and the strip conductor (15) of the second line to form an arrangement operable as a 180 DEG  hybrid junction, the first line coupling an R.F. signal to the diodes (24, 25) and the second line coupling an L.O. signal to and an I.F. signal from the diodes (24, 25). To reduce the impedance of the I.F. signal ground return path and inhibit resonant effects, the pair of conductors (18, 19) of the first line to which the diodes (24, 25) are respectively connected are on the same major surface as the strip conductor (15) of the second line and are coupled to the ground conductor of the second line by means which include conductive connections (e.g. 33, 34) through the substrate (3) and which present a low impedance to the L.O. and I.F. signals. <IMAGE>
Patent GB-2112748-A (GB)
Title: An apparatus for winding video tape on reels
Inventor: KUBO YOSHIHARU
IPC: B65H21/00
Filed: 1982-12-13
Abstract: An apparatus for winding video tape on reels of a cassette comprises a winding means (17-23) for winding video tape on the reels (4) and a feeding means for feeding a pair of reels (4) to the winding means (17,23), the winding means having two shafts (17,18) on which two reels (4) can be removably mounted, at least one of the shafts (18) being movable in the direction far away from the other (17), connecting means (19,20,28) for connecting tapes being provided so as to be able to be brought in and out of the passage of the movable shaft (18), the connecting means (19,20,28) being put out of the passage of the reels (4) when the reels (4) are being moved far away from each other, and with the reels (4) being spaced from each other, the connecting means (19,20,28) is brought in and out of the space between the reels (4) so as to connect the reel tape wound on the reels (4) with video tape. <IMAGE>
Patent GB-2140184-A (GB)
Title: Railway track signalling system
Inventor: CROSS PETER J
IPC: B61L1/18
Filed: 1983-03-12
Abstract: In a railway track signalling system a track signal is transmitted along the track (1, 2) and is shunted by the presence of a train on the track. The track signal is accompanied by periodic high voltage pulses which break down local high resistance between train wheels and the track, and the track system includes pulse repeater units (5) located at intervals along the track, each said unit including a capacitance (6) which is charged by the D.C. component of the track signal and which is discharged upon reception of a voltage pulse through a transformer (7) which transmits a pulse, of opposite polarity to the D.C. component, to the next repeater unit (5). <IMAGE>
Patent GB-2117019-A (GB)
Title: Positioning of flat textile articles
Inventor: BACHMANN BERND
IPC: B65H9/04
Filed: 1983-03-22
Abstract: The solution according to the invention serves to position textile surface configurations, especially cut parts for pieces of clothing. It is the object of the invention to create an apparatus, with which sewing material parts can be positioned in two coordinates in a simple manner. In the invention, the sewing material is moved against a contact edge of a positioning table in the x-direction by air nozzles, which are alternately guided by sensors. The sewing material edge is clamped by a vertically-adjustable clamping device. The positioning table is then moved in the y-direction until the sewing material edge reaches a sensor.
Patent GB-2117289-A (GB)
Title: Grinding tools
Inventor: ANDREW COLIN
IPC: B24D5/06
Filed: 1983-03-22
Abstract: A grinding tool, especially a rim grinding wheel, in which grinding grits 1 and intervening spaces D are disposed on the surface of the tool in regular patterns so as to facilitate access of coolant to the grits during use. The grits may be arranged in bands in which they are closely- packed in the direction that lies transverse to the motion of the tool in use. In the circumferential direction the grits in each band should not be more than three-deep, and a space separates each band from the next. A grit band may comprise only a row of single grits, closely spaced in the transverse direction. The surface of the wheel may be recessed in the spaces, to improve coolant capacity, and the invention applies particularly to wheels having metal hubs on which grits of "super abrasive" materials are attached by electrodeposition techniques. <IMAGE>