baber/WOPTO huggingface dataset:
Patent GB-1451383-A (GB)
Title: Digital data processing apparatus
IPC: G11B20/18
Filed: 1973-12-19
Abstract: 1451383 Digital error-correcting systems INTERNATIONAL BUSINESS MACHINES CORP 19 Dec 1973 [26 Dec 1972] 58796/73 Heading G4C In an error correction and detection system data signals forming a set are divided into segments of signals. Each segment has a fixed number of bits and has an error check byte derived from the remaining bits in the segment. One such segment includes second check bytes derived from all of the bits of the data signal set. A third, and differently derived, check byte may be obtained from all the segments. Different error polynomials may be used for the second check bytes. As applied to multi-track magnetic records the record format consists of K + 1 segments preceded by a preamble and postamble block. Each parallel-bit data byte may include a parity bit. Segment K includes the third check byte and any required padding bits. Segment K+ 1 includes any remaining data bits, padding bits, a count indicating the number of padding bits in segment K, and the second check bytes. The second check bytes are derived from the data bits only in segments 1-K, and the third check byte from the data and padding bits in segments 1-K. The check bytes are derived in known manner. The second (and third) check bytes are corrected by the accompanying first check byte, and can then be used to confirm that error correction of the data bytes has been properly performed by the first check bytes. The error code determining the first bytes is more powerful than is that for the second check bytes.
Patent GB-1420100-A (GB)
Title: Leg and foot warming bag having walls heat insulated with a  filling material
IPC: A47G9/06
Filed: 1972-12-20
Abstract: 1420100 Leg muffs WILLIAM POWNALL & SONS Ltd 1 Feb 1974 [20 Dec 1972] 58978/72 Heading A3V [Also in Division A4] A leg muff comprises a heat-insulating baglike structure 11 dimensioned to receive the legs and lower trunk of a wearer, at least the lower part of the structure being weatherproof and/or wear resistant. As described the structure comprises an upper portion 14 of quilted nylon and a lower portion 12 of waterproof rubberised cloth which may be a single layer or a double layer with or without quilting. The waterproof layer may extend up to the top of the structure on the rear face thereof. The structure has a slit closed by a sliding clasp fastener 13, and a tying cord 17.
Patent GB-1283596-A (GB)
Title: Electric switching apparatus
Inventor: SHARP ALEXANDER
IPC: H01H47/24
Filed: 1969-12-04
Abstract: 1283596 Electric switching apparatus HONEYWELL Ltd 2 Dec 1970 [4 Dec 1969] 59308/69 Heading G1A In an electric switching apparatus, in which a beam of light can be prevented from falling on one photo-cell 14 by a vane 5 in one position or falling on two photo-cells 14 and 15 by the vane 5 in another position, the outputs from the photo-cells 14 and 15 are connected to a two state switching device (such as a Schmitt trigger) so that switching occurs when both radiation paths are interrupted and when both radiation paths become uninterrupted, the apparatus as a result having a switching differential, that is a hysteresis or backlash, which, due to movable mounting of the photo-cells, is adjustable. A lamp (12) Fig. 2 (not shown) and the photo-cells 14 and 15 are carried by a housing 8 which is pivoted at 9, the housing being lockable in any desired angular position by a locking screw 11, thereby determining the distance between the two positions and thus the magnitude of the switching differential. In a suitable circuit, Fig.4, the Schmitt trigger circuit includes transistors 32 and 33, the output of the trigger circuit being connected to control transistor 35 which in turn controls a relay 36. When the vane 5 is in the position represented by 18 both photo-cells are exposed and transistor 32 is rendered conducting and switches off transistor 31 allowing transistor 35 to conduct and operate relay 36. Transistor 32 is arranged so that when the vane moves clockwise to the position represented by 18' in which only one photo-cell 15 is exposed the signal level received is just above that at which the transistor becomes non-conductive. Any subsequent clockwise movement will then cause the Schmitt trigger to change states and switch off the transistor 35 and relay 36. On rotating the vane 5 in an anticlockwise direction the construction of the Schmitt trigger circuit is such that both the photo-cells will have to be uncovered before the circuit changes states and switches on the relay 36 again.
Patent GB-1380719-A (GB)
Title: Apparatus for producing a plasma flow
Inventor: BONET C
IPC: H05H1/36
Filed: 1971-12-21
Abstract: 1380719 Plasma discharge devices AGENCE NATIONALE. DE VALORISATION DE LA RECHERCHE 21 Dec 1971 [23 Dec 1970] 59484/71 Addition to 1298680 Heading H5H Plasma generating apparatus comprises a plurality of convergent nozzles 34a, 34b in which no internal arc is struck supplied with plasma forming gas, and a pilot plasma generator 62 which directs a primary plasma jet 42 at the space between the nozzles to reduce the resistance between the nozzles 34a, 34b for a main arc 44 to be initiated between the conductive nozzles 34a, 34b, the pilot plasma generator 62 and the nozzles 34a, 34b, being connected in parallel across the terminals of a current source 40a, and the pilot plasma generator circuit including a resistance 66 of sufficiently high value for ensuring that the current flows preferentially through the gas flows of the nozzles once the main arc 44 between the nozzles has been established. The value of resistance 66 is preferably high enough to cause extinction of the pilot plasma blow pipe once the main arc 44 in established. The extinction of the main arc 44 may automatically restart the pilot plasma generator. The nozzles 34a, 34b may be slid away from one another once the main arc is established. A polyphase arrangement is disclosed (Fig. 2, not shown). The pilot plasma generator, Fig. 4, comprises a rod electrode 76 provided with a conductive tip 72 of copper. Cooling fluid is supplied to the hollow bore 74 in tip 72 by means of an inner tube 78. Nozzle electrode 68 has a cooling chamber 80. Electrodes 68, 76 are screwed into an insulating block 82. The electrode 76 is spaced from the walls of the block 82 so that plasma forming gas may be supplied to an ejection slot 92 between the electrodes. A grooved insulating shield 88 surrounds the electrode tip 72.
Patent GB-1389355-A (GB)
Title: Glow discharge starter switch
Inventor: VERVAART A P
IPC: H05B41/08
Filed: 1972-12-27
Abstract: 1389355 Thermal switches PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 27 Dec 1972 [29 Dec 1971] 59637/72 Heading H1N A glow discharge starter switch has a fusible element 6 joining a spring 7, connected to terminal 8, to a conductor 5 connected in series with one of the electrodes in tube 1, so that on tube 1 overheating element 6 melts and spring 7 springs up to position 7<1> moving in a plane tangential to the tubular wall of tube 1 breaking the circuit to the electrodes. The electrodes are bimetals. An insulating casing 4 fits over the assembly. These may be a capacitor in housing 4 in parallel with the electrodes. Since spring 7 moves upwards, there need only be a narrow space between tubes 1 and 4. Fusible element 6 may be a soldered joint of tin, lead, cadmium. (For Figure see next page.)
Patent GB-597866-A (GB)
IPC: D01H7/92
Filed: 1939-10-24
Abstract: 597,866. Twisting roving. KRUSE, A. Oct. 24, 1939, No. 28591.- Convention date, Nov. 25, 1938. [Class 120 (ii)] Roving is twisted preparatory to spinning by an intermittently rotated tubular spindle A disposed between two pairs of continuously rotating delivery rollers L, N, the spindle having an outlet E of reduced diameter and imparting to the sliver a right or left hand twist, the rollers L delivering untwisted sliver from the drawing head and the rollers N delivering twisted roving to a can P placed near to the point of delivery. The outlet end E of the tube may be detachably screwed to the main portion and a number of interchangeable ends having outlet orifices of different dimensions suited to different thicknesses of the roving may be provided. As shown in Fig. 2, the spindle A is disposed with its outlet end E near the nip of the second pair of delivery rollers N and the spindle is driven from an intermittently rotated drum or pulley K. The spindle A, Fig. 1, may be detachably secured by a pin D to a bush G which has a pulley H geared to the drum or pulley K and is supported in a pair of bearings 1. The rotary motion of the spindle ceases when the twist has travelled from E to the rollers L and the rotation of spindle A recominences when the length of twisted silver between E and rollers L has been delivered by the rollers N into the can P.
Patent GB-1277390-A (GB)
Title: An apparatus for producing open-topped hollow articles
Inventor: MORI KAZUHIRO
IPC: B21D43/14
Filed: 1970-12-17
Abstract: 1277390 Extruding MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 17 Dec 1970 [22 Dec 1969] 60044/70 Heading B3P A backward extrusion press comprises a turntable 27 with a set of dies 3 and a set of punches 2 which are moved successively under a ramming roller 9 mounted on a crank-shaft 8. The roller moves each punch downwards into its die to backward extrude a metal blank over the punch. The blanks are fed from a hopper 21 down a shoot 22 to a turret 26 which deposits one blank in each die. The turntable has an I-shaped axial section formed with upper and lower horizontal discs. The lower disc carries the dies 3 and the upper disc slidably carries punch holders 52 which are spring supported. The upper ends of the punch holders have rollers 56 which engage in a cam track 15 for lifting the punches and which is widened adjacent the ramming roller 9. The stroke of each punch is adjusted by rotating eccentric bushes 46, 46<SP>1</SP> for the crank-shaft 8 by worms 48, 48<SP>1</SP> and wormwheels 46a, 46a<SP>1</SP>, Fig. 8. The dies have backing blocks 59 and are adjustably mounted on the turntable by three bolts 110, 112, 112<SP>1</SP>, Fig. 15. The outermost bolts 112, 112<SP>1</SP> engage in threaded sleeves 113, 113<SP>1</SP> to each of which one arm of a double-arm lever 115, 1151 is pivoted. The levers 115, 115<SP>1</SP> have fixed central pivots 116, 116<SP>1</SP> and their other ends 118, 118<SP>1</SP> bear against the die 3 at 120 degrees angular spacing from the bolt 110. Each die also has an associated stripper 17, Figs. 3 and 11, which comprises a set of segments 101 urged inwards by springs 106. The segments engage the punch 2 to strip the extruded blank and also allow the punch to be tilted for removal from its holder, Fig. 13 (not shown).
Patent GB-1382050-A (GB)
Title: Metal-insulator structures
IPC: H01L21/762
Filed: 1971-12-30
Abstract: 1382050 Semi-conductor devices WESTING- HOUSE ELECTRIC CORP 30 Dec 1971 [26 Jan 1971] 60699/71 Heading H1K [Also in Division C7] Metal-insulator sheet substrates for use in electronic devices comprising a plurality of separate areas of metal separated by areas of insulative metal oxide which extend through the thickness of the sheet are produced by anodizing, e.g. of aluminium sheet to form insulating areas of aluminium oxide. Selected of the metal areas M 1 , M 2  may have photo-conductive areas PR1, PR2 of cadmium sulphide or selenide on one side thereof. Response to a light input instigates emission of electrons from a cold cathode structure comprising the aluminium area M1, an aluminium oxide layer 01, and the metal layer G3, under the influence of a bias applied between the metal layer G3 and the gold layer G1.
Patent GB-1260680-A (GB)
Title: Master cylinder device
Inventor: CRESTO ARTURO
IPC: B60T11/224
Filed: 1969-12-17
Abstract: 1,260,680. Master cylinders. A. CRESTO. 17 Dec., 1969 [18 Dec., 1968], No. 61480/69. Heading F2F. A master cylinder comprises a cylinder 2 connected to a reservoir through a port 26 in the cylinder wall, a second cylinder 10 of smaller diameter opening into the cylinder 2 and closed at its other end, a piston having ports 14, 15 slidable in the respective cylinders under the bias of a spring 21, the pistons and cylinders forming a low-pressure chamber 63 and a high pressure chamber 64; there being a connection between the high and low-pressure chambers via a duct having a control valve comprising a ball closure member 56 urged by a spring 57 on to a bushing 55 of resilient material, providing a seat, to close the duct but yieldable to allow communication when the pressure in chamber 63 exceeds a predetermined value and a pressure transmitting means including a rod 48 with enlarged head 48a moves the ball 56 off its seat when the pressure in chamber 64 exceeds a predetermined value.
Patent GB-693087-A (GB)
Abstract: 693,087. Linear-dimension gauges. SANDVIKENS JERNVERKS AKTIEBOLAG. Oct. 2, 1951 [Oct. 4, 1950], No. 22943/51. Class 106 (ii). Outside callipers comprise two feelers 2, 3 connected to a common elastic member 4 in turn fastened to a body 1 in such a way that the feelers are movable mutually relative to each other and also relative to the body and are adjustable in a direction from each other by an object to be gauged. Connections of the body 1 and feelers 2, 3 to a leaf-spring 4 are made by pressure-plates 23, 25, 26 and screws 24, 27, 28, thus forming a pivot bearing and the other ends of the feelers have contact edges 13, 14 formed by hard metal for embracing an object to be gauged. The feelers are urged toward each other by springs 11, 12 retained in threaded bores 7, 8 in the body 1 by screws 9, 10 and are set at a desired distance from each other by a screw 15 mounted in one feeler bearing against the other feeler. Another screw 17 with knob 16 is mounted in the feeler 3 and bears on a feeler 18 of a gauge (not shown) mounted in the feeler 2 and thus serves for adjusting the zero. The gauge may be of pneumatic type comprising two pressure chambers connected to a common source of pressure medium and each provided with a restricted inlet and outlet controllable in accordance with the dimension to be gauged and so connected to an indicator that the pressure difference causes the dimension to be indicated, the necessary connections being made through lines 20, 21, 22. The gauge described is manually operable, however the device may be mounted on automatic machine-tools, e.g. a lathe, and may be intermittently advanced into engagement with the work-piece.
Patent GB-2032879-A (GB)
Title: Improvements in or Relating to Load Lifting and Lowering Apparatus
IPC: E05D11/10
Filed: 1978-07-13
Abstract: A latching device is provided for locking the platform of load lifting and lowering apparatus in a stowed position. The platform (10) of a tail lift of a vehicle is hingedly mounted on runners (11). The platform (10) has a rotatable latch (13) which is cooperable with a lip (16) formed on the side of the runner (11) adjacent the platform (10). As the platform is rotated from a horizontal position towards a stowed position, the latch (13) is rotated by the runner until the pivot axis of the latch has passed over the lip (16) to allow an apex (18) of the latch to drop behind the lip (16) to lock the platform in the stowed position. <IMAGE>
Patent GB-2026321-A (GB)
Title: Apparatus for restoration of hip joint mobility
IPC: A61B17/64
Filed: 1978-07-27
Abstract: A pelvic yoke 1 is secured on the upper flaring portion of the ilium by means of traction wires 3. A distractor 10 with provision for adjusting movements in two mutally perpendicular planes, the frontal and the sagittal, is connected with said yoke and is fastened through a hinged joint to the thigh bone. The hinged joint is formed by rollers 14, disposed on an arc-like guide 7, situated in the frontal plane and is fastened to the greater trochanter 28 of the thigh bone by nails 8. The hinged joint comprises also a spherical locking joint 15, fastened on the distractor and adjusting screws 21, 22 provide for adjustment in two mutually perpendicular directions. The apparatus provides for the complete support of a hip joint during its healing and may also include a thigh yoke 23. <IMAGE>
Patent GB-2007686-A (GB)
Title: Multi-Arm Star Copolymers
IPC: C08F279/02
Filed: 1978-10-04
Abstract: Multi-arm star copolymers have good physical properties due to copolymerized vinyl pyridine. The copolymers are prepared by subjecting to anionic polymerisation or copolymerisation in a solvent a 1,3- conjugated diene e.g. butadiene, alone or in admixture with a monoalkenyl aromatic monomer, e.g. styrene, using a monolithio organometallic initiator. The copolymerisation may be random or block copolymerisation. At least three moles of divinyl benzene per active polymeric anion are then added to form a nucleus to which at least four radial arms containing the diene units are linked, thus forming a multi- arm star polymer or copolymer. A vinyl pyridine or mixture of monomers one of which is a vinyl pyridine is thereafter added to provide the star copolymer with at least one additional arm containing units of polymerized or copolymerized vinyl pyridine which latter units constitute from 0.5 to 50% by weight of the resulting copolymer. The addition of a proton donor to the polymerization mixture decomposes the active chain ends and enables the resulting copolymer to be recovered in conventional manner.
Patent GB-2032096-A (GB)
Title: Method of producing an imitation log and imitation log produced by the method
IPC: F24C3/00
Filed: 1978-10-07
Abstract: An imitation log 30 suitable for use in an open-grate-type gas fire, is made by firstly stiffening a tubular element of compressed ceramic bulk fibres with a stiffening agent such as starch and baking a first time to harden the agent. This renders the previously-soft and pliable element workable, to enable it to be shaped at its ends, as at 17, 18 and 19 to resemble a natural sawn or chopped log. The open ends are then filled with a ceramic fibre/cement mixture, as at 23 and the resultant assembly is then coated with a body stain to resemble bark and is baked a second time to render this stain permanent. Finally, the ceramic fibre/cement mixture fillings 23 are painted with a yellow or ochre glaze to resemble inner wood and the assembly is subjected to a third baking to set this glaze. The resultant log is light and can readily be brought to red heat in an open-grate- type gas fire, so that it is not just decorative but serves as a radiant component. <IMAGE>
Patent GB-2033302-A (GB)
Title: Portable filing system and record holder
IPC: B42F17/22
Filed: 1978-11-06
Abstract: A portable filing system has record cards 2 individually hinged to a flat carrier 3 so that the bottom edge 4 of each card is exposed. When the cover 8 is opened back, it forms a rigid co-planar extension of the carrier 3 for writing on the backs of the cards. Each record card 2 comprises a folded record sheet with its two portions 18a, 18b clipped at their outside edges 18d, 18e in a gripper 17 to cover opposite sides 15c, 15d of a backing sheet 15, with the fold 18c in a gap 16 between a steel rod 13 and the adjacent edge 15a of the backing sheet 15. The portions 18b are clipped in place by two clips 14 which join the top corners of the backing sheet 15 to the rod 13. The hinges 9 are formed by two plastics members 11 with two respective series of integral clips 12 in fixed positions to receive the rods 13. Because the clips 12 are fixed on each member 11, the record cards do not bunch up. <IMAGE>
Patent GB-2008666-A (GB)
Title: Door closing device
IPC: E05F3/12
Filed: 1978-11-08
Abstract: A hydraulically controlled door closer in which a spring cooperating with a piston reciprocatable in a fluid filled bore urges a closer shaft operatively connected to the piston to a position in which a door connected to the closer shaft is closer. The spring is tensioned during turning of the closer shaft in a door opening direction and may be releasably held in the tensioned condition by an additional piston located between one end of the spring and the first-mentioned piston and provided with a first passage therethrough in which a one-way valve is located in a second passage which may be closed and opened by an electromagnetically operated valve.
Patent GB-2033322-A (GB)
Title: A device for coupling a trailer to a fork lift truck
IPC: B60D1/06
Filed: 1978-11-09
Abstract: To couple a trailer 2 to a fork lift truck 1, a device 3 is provided which slips over the forks 4 of the truck and carries a universal joint coupling for connection to the trailer. The coupling forks can be moved close together so that they can both be inserted into a single passage in the device, or they can be spaced apart so that they can be inserted into two spaced passages in the device. <IMAGE>
Patent GB-2015631-A (GB)
Title: Board securing device
IPC: E04G7/28
Filed: 1979-01-04
Abstract: Staging boards 10 are secured to a scaffolding member 14 by a device comprising an elongate generally planar board engaging plate (11) which extends across and engages the upper surfaces of the boards, and at least two recessed lugs (12) which are connected in a spaced parallel relationship to the underside of said plate (11) so as to depend therefrom in planes which are perpendicular to the plane of said plate (11), each lug (12) having a recess arranged so that all the lug recesses are aligned with each other and receive the support member 14. <IMAGE>
Patent GB-2041129-A (GB)
Title: Method and equipment for installing a flow regulator valve in a pipeline
IPC: F16L55/105
Filed: 1979-01-18
Abstract: A method of installing a flow regulator valve in a pipeline 1 comprises (i), assembling to the pipeline a sealable casing C, a pipe-cutter 3 movable upwardly within the casing and a shunt-off valve 14 operable to shut-off the casing at an intermediate position, (ii) cutting the pipe 1 with the shut-off valve 14 open, (iii) lifting the pipe-cutter 3 together with the cut-pipe section away from the pipe and shutting the shut-off valve 14, (iv) removing the pipe- cutter together with the cut pipe section from the casing introducing the regulator valve into the casing, (v) reopening the shut-off valve and lowering the regulator valve into the pipeline, and (vi) removing the casing C and the shut-off valve 14 from the pipeline duly fitted with the regulator valve. Prior to step (i) clamping rings 2 are fitted about the pipeline 1 on opposite sides of the installation position and, prior to step (vi), the regulator valve and the cut pipeline are provisionally joined by forcing the clamping rings inwardly from outside the casing until the rings straddle the joints between the pipeline and the regulator valve. Equipment for performing the method is also described. <IMAGE>
Patent GB-2023567-A (GB)
Title: Electrooptic ceramic material
IPC: C04B35/493
Filed: 1979-02-05
Abstract: A transparent and electrooptic ferroelectric ceramic material comprises the composition   <IMAGE> where A represents a rare earth element such as Nd, Sm, Eu, Gd or La, B represents a Group I, II or III element such as Li, Na, K, Mg, Sr, Ba or Al, 0.04</=x</=0.15, 0.6</=y</=0.8, a+b= x, a NOTEQUAL 0 and b NOTEQUAL 0. This ceramic material is superior in electrooptic effect to conventional lead lanthanum zirconate titanate ceramics and can easily be produced in desired shapes and sizes by hot-pressing.
Patent GB-2041435-A (GB)
Title: Improvements relating to reusable, fire-proof cladding in areas of high fire hazard
IPC: E04B1/94
Filed: 1979-02-22
Abstract: A panel of sheet steel 1 has its central portion bent across the width to form a truncated triangular section 4 which can be clipped around the flange of an I section beam 9; opposing edges of the sheet are bent to form deep U cross sections 2,3 such that adjoining panels may be connected together, the amount of overlap of the said U sections allow varying distances between adjacent beams to be accommodated. <IMAGE>