baber/WOPTO huggingface dataset:
Patent GB-1280940-A (GB)
Title: Numerical positioning control system
Inventor: KELLING LEROY ULYSSES CARLTON
IPC: G05B19/39
Filed: 1970-10-21
Abstract: 1280940 Programmed control of machine tools GENERAL ELECTRIC CO 21 Oct 1970 [21 Oct 1969] 49997/70 Heading G3N A machine tool control system is responsive to input dimensional data from a tape which is read by a reader 74 and set into fine and coarse phase counters 78, 76. The counters are cyclically counted up by pulses from a clock 70 to provide phase representative output pulses. A single resolver 80 is fed from a frequency divider 72 and driven by an axial movement of a machine tool 81 to be controlled. The phase of the output pulses from the fine counter 78 is directly compared with the phase of the signal from the resolver 80 in a phase comparator 82, the output from which controls a pulse-to-current converter 83 providing current pulses to a motor 85 providing the axial movement of the machine tool. The output of the resolver 80 is also converted to a phase varying signal of a larger scale factor. This is effected by a cycle control 84 which generates a pulse for a predetermined rotation of the resolver which is fed to a variable phase counter 86. The phase of counter 86 is compared in a comparator 88 with the phase of the coarse counter 76. The output of comparator 88 is fed to the converter 83 to control the motor 85 when the position error is above a predetermined amount. Below this amount the comparator 82 controls the motor with current essentially at a rate proportional to error.
Patent GB-1363710-A (GB)
Title: Heat dissipating device for handling an electrical component
IPC: B23K3/08
Filed: 1971-10-28
Abstract: 1363710 Clamps W M HALSTEAD 28 Oct 1971 50098/71 Heading E2B [Also in Division B3] A device for handling an dissipating heat from an electrical component during soldering or unsoldering comprises a pair of plate like jaws 16, 16 of heat conducting material, each formed with spaced apart fingers 22, with handle forming resilient means 17 secured to the jaws to bias the jaws together a plurality of slots 21 extending from an edge of each jaw remote from the resilient means providing the fingers and an inturned portion 20 provided at each jaw edge constituting a seat for the component. The device is particularly for use in the soldering or unsoldering of the leads 14 of an integrated circuit module 12 to or from a circuit board. The jaws are made of beryllium copper and are carried by heat conductive crossed pivoted arms 17 having a compression spring 19 biassing the arms apart. In a modification the arms and spring are replaced by a single length of spring wire shaped to provide crossed arms secured to the jaws.
Patent GB-1342159-A (GB)
Title: Method and apparatus for drying coatings
IPC: B05D3/04
Filed: 1971-10-29
Abstract: 1342159 Drying of coatings REDMAN HEENAN INTERNATIONAL Ltd 29 Oct 1971 [30 Oct 1970] 50417/71 Heading F4G [Also in Division B1] Solvent is removed as a vapour from a paint or adhesive coating on a moving workpiece W (which may be a continuous strip or a series of items) by introducing a drying gas into an oven 10 by means of a fan 14, and the exiting mixture of drying gas and solvent vapour is divided at 15 between a recycling duct 16 leading back to the fan 14 and an oxidation duct 17 leading via an infra-red gas spectrometer 18 and fan 20 into an oxidation chamber comprising a catalytic converter (not shown) or a gas burner 23 producing oxidation gases whose temperature is monitored at 19 and which are divided between a waste duct 26 leading to atmosphere via a heat exchanger 27 and a return duct 29 leading back to the fan 14, fresh air drawn in at 32 being passed by a fan 34 directly to the fan 14, or through the heat exchanger to pre-heat the air to the fan 14. The workpiece W may be supported by rollers, or lie on or be suspended from a conveyer. The header 11 has spaced branches 12 provided with nozzles 13 (which may be slots). Dampers may be provided to control the division into ducts 16, 17, and 26, 29. Between 70 and 80% of the exiting gases are recycled via duct 16, and of the 20-30% of the exiting gas passed through the burner 22 between 5 and 55% is passed into the recycle duct 29 and between 45 and 95% into the waste duct. The temperature of the drying gas mixture entering the oven 10 is between 200 and 1000 F. The temperature in the burner is controlled by the thermometer 19 and is sufficient to cause auto-combustion of the solvent vapour which emerges at 1200-1600 F. The solvent vapour concentration is kept in the range 25-40% of the lower explosive limit of concentration.
Patent GB-1533233-A (GB)
Title: Method of lining pipes
IPC: B29C41/42
Filed: 1974-11-21
Abstract: 1533233 Internally coating pipes ENGLISH CLAYS LOVERING POCHIN & CO Ltd 19 Nov 1975 [21 Nov 1974] 50586/74 Addition to 1444225 Heading B2E [Also in Division F2] A method of lining a pipe 10 as in the Parent Specification 1444225 wherein a gas (e.g. air) at a temperature higher than the temperature of the lining is blown axially through the pipe for a short period after spinning has started to cause entrained air bubbles in the liquid to be removed. The gas is blown via an injection tube 33 fitted with a cowl 34 to ensure that the injector nozzle fills the hole 15 in the cover 12. The hole 15A in cover 12A at the downstream end of the pipe 10 may be larger than hole 15 to allow the gas to flow rapidly through the pipe.
Patent GB-1071490-A (GB)
Title: Improvements in and relating to the hardening of crankshaft journals
IPC: C21D9/30
Filed: 1963-12-23
Abstract: <PICT:1071490/C6-C7/1> <PICT:1071490/C6-C7/2> Crank-shaft journals are hardened by axially rotating a crank-shaft 19, e.g. on members 15, in a heating position adjacent a quench tank 11, selecting a journal 20 or 21 on the crank-shaft and moving an inductor 48, e.g. supported by parallelogram linkages 43 and 46 from a carrier 39 riding on a track 37, into alignment with the journal, locking the inductor against further movement, e.g. by turning a handle 55 on a shaft 53 to lower an arm 59 which keys into an indexing plate 51, and simultaneously initiating a flow of divergent jet-like quenching streams e.g. of polyvinyl alcohol and water within the tank in a localised quenching zone A, e.g. by closing a switch 57-61 also connected to the common shaft 53 so actuating valve means controlling a source of quench fluid under pressure (Fig.7) which supplies quench blocks 22, heating the journal during rotation of the crank-shaft, and moving the crank-shaft into the tank to dispose the journal completely in the quenching zone A, selecting another journal on another crankshaft, unlocking the inductor and moving it into alignment with the newly selected journal and maintaining the quench during movement of the inductor to its new position. Preferably, an individual quench block 22 is selected for a particular heated journal, having openings which direct jet-like quenching streams against the journal within the quench zone, the pressure of the fluid being 7 to 50 p.s.i.  Preferably shield means comprising baffles B with flanges C are associated with each crank-shaft on its support to deflect quenching streams.
Patent GB-1333448-A (GB)
Title: Electrolyte for depositing a black electroplate
IPC: C25D3/56
Filed: 1971-11-02
Abstract: 1333448 Electro-deposition of black electroplate ENEQUIST CHEMICAL CO Inc 2 Nov 1971 [23 Nov 1970] 50934/71 Heading C7B An aqueous, alkaline electrolyte contains nickel and zinc ions and polyethyleneimine, and is suitable for electro-depositing a black electroplate. The nickel and/or zinc may be present as the sulphate, chloride, acetate, carbonate or hydroxide; and sodium or potassium hydroxide may be used to regulate the pH. The workpiece to be coated may be of brass and the counterelectrode of stainless steel.
Patent GB-1505313-A (GB)
Title: Steering linkages for industrial trucks
IPC: B62D7/00
Filed: 1976-12-14
Abstract: 1505313 Vehicle steering mechanism; brake controls LANSING BAGNALL Ltd 14 Dec 1976 [15 Dec 1975] 51315/75 Heading B7H In an truck having an operator's platform 10 which moves up and down a mast on the truck body, a pulley 16 mounted on the body and coupled to a steerable wheel or wheels is connected by an endless cable to a drum 14 which is coupled to a steering hand wheel and moves with the platform 10, each run 17a, 17b of the endless cable passing over a pulley 21a, 21b which is supported by a further pulley 25a, 25b suspended by a loop of cable 24a, 24b having one end fixed to a cross-beam 29 moving with the platform 10 and the other fixed to a bracket 26a, 26b on the mast. This results in the pulleys 21a, 21b moving through half the distance moved by the platform 10 on the mast so that the effective length of the cable runs 17a, 17b remains constant. Each cable run 17a, 17b also passes over guide pulleys 18a, 18b and 22a, 22b on the platform 10 and the truck body respectively. A brake pedal 30 on the platform 10 is connected to brake mechanism on the body by a cable 31 which passes over a second pulley 32 supported by the pulley 25a.
Patent GB-1508410-A (GB)
Title: Process for treating the gas-main washing liquid arising in coke ovens
IPC: C10K1/06
Filed: 1976-12-09
Abstract: 1508410 Treating tar-water mixtures DR C OTTO & CO GmbH 9 Dec 1976 [27 Dec 1975] 51348/76 Heading C5E Liquid ml (see the drawing) from the washing of coke oven gas in a gas main is separated in a gravity separator 1 to provide substantially tar-free aqueous liquid m10, suitable for re-use as washing liquid, a thick tar m2, containing dust and pitch, and tar m4; the tar m4, together with recycle tar m9, is passed to a separating centrifuge 6 and separated into water m5 and clean tar m7 and a portion m9 of the clean tar is recycled whilst the remainder m8 is removed as product. The centrifuge can be an imperforate basket screw centrifuge which provides for the separation of a thick tar m6. The amounts of recycle tar m9 and clean tar product m8 are controlled by a level control system 8; an overflow provides for removal of relatively impure tar m3 in event of a failure of the centrifuge 6.
Patent GB-1478682-A (GB)
Title: Method and apparatus for piecing-up or spinning a thread on an open-end spinning unit of an open-end spinning machine
IPC: D01H4/50
Filed: 1974-11-27
Abstract: 1478682 Spinning in open-end spinning machines F STAHLECKER and H STAHLLECKER 27 Nov 1974 [4 Dec 1973 6 Aug 1974] 51438/74 Headings DID and DIN In a method of spinning-in a thread in an open-end spinning machine the spinning rotor is run at a reduced speed and a mobile spinning-in unit intervenes in the drive and/or control of means which feed sliver and hence controls the volume of fibers in the spinning rotor. The reduced rotor speed is achieved by spinning-in during the run up of the rotor. As shown in Fig. 3 an auxiliary drive in the mobile unit connects via clutch 48. 50 with the sliver feed roller 22 while the normal drive is disconnected by electromagnetic clutch 26. Prior to spinning-in the rotor 9 is held stationary by a brake 15 which when released and drive is resumed communicates via a lever 20 with a switch 45 in the mobile spinning-in unit to initiate the spinning-in sequence. A stop motion 29 which reacts to loss of yarn tension to disengage the drive clutch 26 of the sliver feed roller is maintained in its disengaging mode by a solenoid unit in the mobile spining-in unit. In an alternative embodiment, Fig. 10, control of the stop motion 135 is employed to control the sliver feed. In this instance the feed is stopped by a sliver clamping member 155 which is also operable by a solenoid 157 in the spinning-in unit to feed sliver intermittenetly and hence give the starting characteristic 5 in Fig. 2. Various alternative means of controlling the sliver feed are described including operation of the feed roller by means of a drive wheel in the spinning-in unit.
Patent GB-1448266-A (GB)
Title: Microwave phase-responsive circuit
IPC: H01P5/16
Filed: 1973-11-08
Abstract: 1448266 Radar MULLARD Ltd 8 Nov 1973 51875/73 Heading H4D [Also in Divison H1] A Doppler radar includes a microwave transmission-line circuit, which may be a printed circuit and comprises a hybrid junction 2 having ports 3, 4 connected respectively to an oscillator and the aerial of the Doppler radar, and ports 5, 6 connected respectively to power dividers D1, D2. The outputs of the power dividers D1, D2 and the inputs of power combiners C1, C2 are interconnected as shown, the lengths of the interconnections being such that the difference between angles x and y is substantially an odd multiple of 90 degrees; where x is the phase difference between two signals appearing at the outputs of combiners C1, C2 when a signal is applied to the input of divider Dl, and y is the phase difference between two signals appearing at the outputs of combiners C1, C2 when a signal is applied to the input of divider D2. The circuit is formed in microstrip on a substrate 1, and includes a hybrid ring 2 having ports 3, 4, 56, ports 3, 4 being separated by 3#/4, and the other ports being separated by #/4. Ports 3, 4 are connected to an oscillator and an aerial respectively, and ports 5, 6 are connected to split-tee voltage dividers D1, D2 with branches D11, D12, D21, D22, connected at their output ends by resistors 7. Split-tee voltage combiners Cl, C2 have branches C11, C12, C21, C22 are connected to dividers D1, D2 as shown, by long connectors 10, 11 which are #/8 longer than the connections 8, 9. The outputs of combiners Cl, C2 are connected to diodes 12, 13 which are connected to rectangular condensers 14, 15 forming open-circuited #/4 stubs. The condensers are connected by #/4 wires 16, 17 to circular capacitors 18, 19, whereby low-pass filters are formed. Energy flowing into port 3 of hybrid ring 2 is divided equally between ports 4 and 6, and hence between the aerial and power divider D2. The echo signal flows into port 4 and is divided equally between port 3, wherein energy is lost, and port 5, from which it flows into power divider D1. A sensing signal is obtained as described in Specification 1,357,457. The circuit may be used as a discriminator in a phase-locked-loop for frequency stabilization of a microwave oscillator, or in a single-sideband modulator or demodulator. Doppler radar, may be used in a burlar alarm, an aid for the blind, a traffic-light control system, or an automatic cargo handling system.
Patent GB-1528830-A (GB)
Title: O-alkyl-o-phenylthionophosphonic acid esters containing a substituted formamidino group and their use as anthropodicides
IPC: A01N57/22
Filed: 1976-12-14
Abstract: 1528830 Thionophosphonic acid esters BAYER AG 14 Dec 1976 [18 Dec 1975] 52100/76 Headings C2P and C2C The invention comprises compounds of the general formula: wherein R 1  is C 1-6  alkyl, R 2  is C 1-6  alkyl or is phenyl, R is a halogen atom or NO 2 , n is 0, 1, 2, 3 or 4, each R being selected independently when n is 2, 3 or 4. They are obtained by reacting a phenol: either as such in the presence of an acid acceptor or in the form of an alkali metal-, alkaline earth metal-, or ammonium salt thereof with an ester halide of the general formula: in which Hal is halogen, the reaction being preferably affected in an inert organic solvent or diluent. The products have arthropodicidal properties and may be used as active ingredients in conventional arthropodicidal compositions. The compound is obtained by adding POCl 3  to 2-amino-phenol dissolved in dimethylformamide whilst cooling with ice (temperature up to 60 C.) and then adding ethanol, with cooling, after the reaction is complete. The hydrochloride formed is filtered off and is converted to the free base by dissolving in water and adding sodium carbonate.
Patent GB-1108490-A (GB)
Title: Multiple plate clutch construction
IPC: F16D13/58
Filed: 1965-12-08
Abstract: 1,108,490. Friction clutches. BORGWARNER CORPORATION. 8 Dec., 1965 [30 Dec., 1964], No. 52127/65. Heading F2C. A double disc clutch assembly comprises presser plates D, C urged apart by a Belleville spring E to clamp driven discs 24, 25 against a driving flywheel A and a cover member B. The clutches are successively released by radial levers 26 pivoted at 59 on the member B and connected by tension struts 71 to the presser plate D. Stops 72 on the struts 71 are adjustable to compensate for wear. The levers 26 actuate the presser plate C through compression struts 28 having a lost-motion connection with the presser plate so that the plate D is released first. The presser plates are connected to the driving member B by flexible tangential straps (75, 76) (Fig. 5,not shown). The Belleville spring has scallops (51) (Fig. 10, not shown) extending from its inner periphery to assist circulation of cooling air.
Patent GB-1431560-A (GB)
Title: Liquid-cooled electrical apparatus
IPC: H02M7/04
Filed: 1973-11-14
Abstract: 1431560 Component assemblies DANFOSS AS 14 Nov 1973 [14 Nov 1972] 52887/73 Heading H1R A liquid-cooled electrical apparatus comprises a casing 1 containing cooling liquid 3 and a plurality of electrical components, some of which are mounted on plates 20, 21 disposed parallel to and spaced from side-walls 2 of the casing, and also having their top edges below the liquid surface and their bottom edges spaced from the base 4 of the casing, others of the components being disposed between the plates. Preferably the components on plates 20, 21 are mounted on the side remote from the adjacent parallel wall. Because of the heat generated the flow of coolant by convection is upwards between the plates and downwards adjacent the side walls which may have heat dissipating fins 8. Plates 20, 21 may carry printed circuits. As shown a control part 11 of the assembly rests on shoulders 5 in the casing wall. The plates may be hingedly supported on a framework and a further subframe may support the other components (Fig. 2, not shown). Stays may be connected to the bottom of the frame-work which when the framework is raised out of the casing for inspection purposes, adopt a splayed position for supporting the assembly on shoulders 5, as disclosed in Specification 1,428,159. A second pair of component-bearing plates may be disposed adjacent the other two side walls respectively of the casing.
Patent GB-1212270-A (GB)
Title: Closure caps for containers
Inventor: WHITE IRVINE EVERARD
IPC: B65D43/02
Filed: 1968-11-08
Abstract: 1,212,270. Caps for bottles &c. ILLING- WORTHS (PLASTICS) Ltd. 31 Oct., 1969. No. 53005/68. Heading B8T. A flexible container closure cap comprises a crown 10 with a central portion 12, and a continuous plastics or rubber skirt 11 which has external grooves 15 therein which provide the skirt 11 with a capacity for outward expansion when pressure is applied to the cap portion 12, thus permitting removal of the cap.
Patent GB-1361679-A (GB)
Title: Tyre making apparatus
IPC: B29D30/32
Filed: 1971-11-17
Abstract: 1361679 Tyre making apparatus NATIONAL STANDARD CO 17 Nov 1971 [23 Aug 1971]  53339/71 Heading B7C A tyre making apparatus (of which one-half is shown in Fig. 1a) has a radially expandable intermediate drum 4 with an end drum assembly (5), 6 (see also Fig. 1b, not shown) at each end thereof, each assembly (5), 6 comprising a sleeve 90 slidable on a main shaft 32 of the apparatus and having first carrier means 89 mounted thereon, a second carrier means 138 mounted on the first carrier means and connected to a tyre bead core locating means 80, and actuating means 150 connected to the means 80 to move the latter between an inoperative position, Fig. la, and an operative position, Fig. 10, in which a tyre bead core 211 may be clamped concentrically of the axis of the apparatus and in contact with one end of tyre carcass material supported on the drum 4 and the assemblies (5), 6. Each bead locating means 80 comprises a plurality of circumferentially arranged arcuate members 95 with concave surfaces 96, each member 95 being connected to one end of a bell-crank lever 99 pivotally mounted intermediate its ends to an arm 102 fixed to a sleeve 136 of the second carrier means 138 and connected at its other end to a lug 108 on a part 135 of a piston-cylinder device forming the actuating means 150, such that, in use, the introduction of fluid under pressure between a piston 152 and end cap 153 of the means 150 causes axially outward movement of the part 135 in turn resulting in movement of the members 95 to the operative position as shown in Fig. 10. The drum 4 comprises a plurality of segments 8 each pivotally connected to a pair of pusher rods 17 having arcuate portions with gear teeth 24 which mesh at the centre plane of the drum, the rods 17 being movable to expand or contract the drum 4 by rings 20 connected by adapters 31 to nuts 30 on screw-threaded portions 28, (29) of a rotatable shaft 26 in the shaft 32, the adapters 31 being joined by nuts 94 to the sleeves 90 so that the assemblies (5), 6 move axially with the adapters 31 as the drum 4 is expanded or contracted. The position of each first carrier means 89 on the associated sleeve 90 may be adjusted by rotation of a hexagonal shaft 82 continuous between the assemblies (5), 6 and carrying screw-threaded collars 85 (86) each connected to a respective one of the means 89 by a pin 83 with a screwthreaded bore 84. An elastic sleeve 36 covers the drum 4 and is fixed at its ends in the assemblies (5), 6, each assembly (5), 6 having a frame 192 carrying an inflatable bag 185 which in use may be inflated and pushed by a bead core setter 210, Fig. 10, either to effect ply turn-up or to apply sidewall components, the interior of the sleeve 36 being pressurizable to provide a reaction force against the setter 210. A further piston-cylinder device 140 is provided between the first 89 and second 138 carrier means in each assembly (5), 6 which device is actuable to move the frame 192 axially outwardly to tension the tyre components during expansion of the drum 4.
Patent GB-1456197-A (GB)
Title: Electromagnetic coil winding
IPC: H01F41/06
Filed: 1972-11-20
Abstract: 1456197 Coil winding CRYOGENICS CONSULTANTS Ltd 20 Nov 1973 [20 Nov 1972] 53635/72 Heading B3A A method of winding electromagnetic coils comprises rotating a mandrel 2 so as to wind a conductor wire 18 on it and pressing the part of the wire being wound on the mandrel to a predetermined radius. The coils are used in solenoids and they may be superconductive. The mandrel has end plates 4 and the wire 18 is fed through a guide tool 10 mounted on a tool post 6, which engages a lead screw 8. The mandrel, or a previously wound layer of wire, is wrapped with a layer 22 of material such as glass tissue or fabric and the tool 10 is preset by a micrometer hand wheel 12 to press the wire 18 into the interleaving layer 22. Tension in the wire is adjusted both by the tool and the wire supply. Notches 14, 16 in the tip of the tool 10, which are formed as part of a screw thread, engage and guide the wire, the notch 16 engaging the previously wound turn ensuring that it remains correctly positioned.