baber/WOPTO huggingface dataset:
Patent GB-1198199-A (GB)
Title: Braking Equipment for Hoisting Gear Electric Motors
IPC: G05F1/30
Filed: 1968-08-30
Abstract: 1,198,199. Control of A.C. motors. HILGERS A.G. 30 Aug., 1968 [2 Sept., 1967; 8 March, 1968 ; 16 March, 1968], No. 41479/68. Heading H2J. [Also in Division G3] An induction motor ml is associated with a brake-release motor sl and has rotor resistances 1r1 which are switched out in steps by contactors 1c3-1c7 as a controller is moved to successive positions in a hoisting direction. In the first lowering position of the controller, the motor exerts a small hoisting torque but is over driven by the load. A speed-responsive device 1u1 responds to rotor voltage to control contactor 1c8 whereby the rotor resistance is varied at, intervals to stabilize the downward speed. At further lowering positions, contactors 1c4-1c6 are opened in succession to develop lower reverse torque and a higher rate of speed. Finally the motor m1 is reversed to provide a positive downward torque. A thyristor regulator Th is connected to the motor s1 and has a manually-regulated resistor 1 in series with a resistor 2 which is shunted by contacts 3 of a relay 4. This relay is energized by a rectifier 5 in series with a switch 17 which provides a pulse at each revolution of the hoisting motor to open the contacts 3. A signalling device 10 gives an indication of the speed of the motor ml. In another arrangement, the motor m1 develops a torque in the required direction of movement of the load under all operating conditions. A transformer is connected between the rotor of the motor m1 and the stator of the motor s1, so that, as the speed of the load increases, the braking action also increases, Fig. 4 (not shown). The speed-responsive circuit 1u1 may comprise a D.C. amplifier comprising a transistor and having its input connected to the slip-rings of the hoist motor through a transformer and rectifier as well as a voltage divider and a Zener diode. The output side of the amplifier is connected through another Zener diode to a relay which controls the contactor 1c8, Fig. 5 (not shown). The brake release is of the ball-screw-spindle type.
Patent GB-1285507-A (GB)
Title: Couplings for model vehicles
Inventor: FARISH THOMAS GRAHAM
IPC: A63H19/18
Filed: 1970-08-28
Abstract: 1285507 Toy railway vehicle couplings TG FARISH 13 July 1971 [28 Aug 1970] 41492/70 Heading A6S A toy railway vehicle coupling of the up and over type has a coupling head 5 connected to a vehicle by a strip of resilient material, e.g. nylon 7 which has a loop or kink 3. A pin 6 is provided to prevent the bars 5 of a pair of couplings from overriding. The loop 3 and the resilience of the material forming the connecting strip 7 enables the coupling head to move vertically and laterally, when the vehicles turn corners, without the need of a spring housed in the vehicle.
Patent GB-1173039-A (GB)
Title: Process and device for the Wet-Treatment of Loose Fibrous Material, especially of Raw Wool
IPC: D06B5/04
Filed: 1967-09-12
Abstract: 1,173,039. Wet treating loose fibrous material. VEPA A.G. 12 Sept., 1967 [23 Sept., 1966; 22 Dec., 1966], No. 41583/67. Heading D1L. A process for the wet treatment, e.g. wetting. scouring or rinsing of loose fibrous material such as raw wool comprises pushing the material into a matt for a given period during passage through at least one treatment bath, and then allowing the material to regain its freedom during a free-floating period, the fibres being formed into the matt by the action of a suction drum and finally being passed between at least one pair of squeeze rollers. The fibrous material 3 is fed onto the treatment bath 2. During its passage along the bath it is brought into contact with a plurality of sieve drums 4 which lift the fibrous material out of the liquid bath 2 and form it into a matt. The drums 4 are spaced apart and form a freefloating distance therebetween. At the end of the bath the material passes under a further sieve drum 4 having pumps 5. The liquid sucked in by these pumps is recirculated, being fed back at the entry end of the bath. On leaving drum 4 the fibrous material is passed between a pair of squeeze rollers 14. To assist in removing the matt from the individual sieve drums a nozzle pipe 26 is located in each drum at the liquid level on the downstream side and forces liquid out through each drum at that point. In an alternative embodiment each drum 4 may have a squeeze roller associated with it on the upstream side. The bath is provided with means for removing sludge.
Patent GB-1526469-A (GB)
Title: Electronic alarm timepiece
IPC: G04G11/00
Filed: 1976-10-06
Abstract: 1526469 Electronic alarm timepieces DAINI SEIKOSHA KK 6 Oct 1976 [15 Oct 1975] 41593/76 Heading G3T An electronic alarm timepiece has aural and visual alarm means and selector means whereby either alarm mode may be selected as desired. As shown, comparison circuits 6, 7 produce outputs to open AND gate 17 when the contents of minutes and hours counters 4, 5 coincide with the alarm time pre-set in minutes and hours alarm time storage counters 9, 10. The AND gate output is directed by a selector circuit 18 to the driver 19 of an audible alarm 21 or to the driver 20 of a flashing L.E.D. visual alarm 25. The selector circuit 18 is conditioned by a switch (not shown) to select the alarm mode. An alarm setting circuit 8 is set by means of an external switch (not shown) and produces an output to set the alarm time storage counters 9, 10 when a switch 30 is closed to terminal H. In this state of the switch 30 the content of the counters 9, 10 is coupled to de-coder/drivers 13, 14 by changeover circuit 11, 12 so that display devices 15, 16 will display the alarm time. When the switch 30 is closed to terminal L the contents of the time of day counters 4, 5 are coupled by the changeover circuits 11, 12 to the de-coder drivers 13, 14 to give a time of day display.
Patent GB-1011581-A (GB)
Title: Process for recovering isophorone and acetone from the autocondensation products of acetone
IPC: C07C45/67
Filed: 1961-11-21
Abstract: Acetone and isophorone are extracted from a mixture comprising autocondensation products of acetone which boil at temperatures higher and lower than the boiling point of isophorane by hydrolysing said autocondensation products with an aqueous alkaline solution at a temperature of 120 DEG  to 300 DEG  C. under pressure and simultaneously withdrawing, by fractional distillation, the acetone formed.  Isophorone may be obtained by distillation of the condensates remaining and drawn from the sump of the distillation zone.  The alkali concentration may range from 0.1%, by weight, to 0.001% and the quantity of water from 10 : 1 to 0.1 : 1, by weight, of water to organics.  It is usual to employ a pressure resistant distillation column and to introduce the alkali solution into the base thereof or, preferably, into the upper portion thereof in order to effect countercurrent flow of reactants.  The heat of condensation at the top of the distillation zone may be directly utilized for steam generation.
Patent GB-1191163-A (GB)
Title: Improvements in or relating to Multi-Core Paper Insulated Electric Cables
Inventor: DENCH GODFREY REGINALD MORGAN
IPC: H01B7/02
Filed: 1967-09-13
Abstract: 1,191,163. Cables. SCOTTISH CABLES Ltd. 12 Sept., 1968 [13 Sept., 1967], No. 41740/67. Heading H1A. To avoid longitudinal troughs and circumferential creases in the impregnated paper belt insulation of a multicore power cable, the belt insulation comprises creped paper lapped under tension around the cores, the paper having a greater elasticity than any outer lappings. The lappings may be graded so that their elasticity diminishes from a maximum at the innermost layers which are able to stretch 40-60% before break.
Patent GB-1008113-A (GB)
Title: Control system
IPC: G05B19/42
Filed: 1962-07-02
Abstract: 1,008,113. Electric correspondence control systems. AMERICAN MACHINE & FOUNDRY CO. July 2,1962 [July 31,1961], No. 41892/62. Drawings to Specification. Divided out of 1,008,112. Heading G1N. [Also in Division G3] The description is identical with that of the Specification 962,750, but the claims relate only to that part of the system relating to the automatic control of the position of a movable member by a programmed record produced during the making of a prototype.
Patent GB-1056256-A (GB)
Title: Liquid dispensing apparatus
Inventor: SIMPSON RICHARD LESLIE
IPC: B67D1/14
Filed: 1964-10-15
Abstract: 1,056,256. Delivering measured quantities of liquid. CORNWALLIS FOUNDRY Ltd. Oct. 13, 1965 [Oct. 15,. 1964], No. 42047/64. Heading B8N. A liquid dispensing apparatus comprises a measuring cylinder 10 having therein a freely movable piston 11 which is adapted to disperse pressurized liquid, such as beer, from one or other end of the cylinder under the control of a valve 17, a lock member 22, Fig. 2 (not shown), being located in the inlet pipe 151 and adapted, under the pressure of liquid entering the cylinder, to engage the valve in order to prevent it from being actuated until the cylinder is full. The lock member 22 is provided with an end portion 222 arranged to engage in one or other of recesses 175, Fig. 5 (not shown), formed in the valve member 17 depending upon which end of the cylinder is being filled.
Patent GB-1279147-A (GB)
Title: Improvements in rivet fastening
Inventor: ROSMAN IRWIN E
IPC: B21J15/00
Filed: 1969-08-25
Abstract: 1279147 Riveting I E ROSMAN 25 Aug 1969 [28 Aug 1968] 42179/69 Heading B3U [Also in Division F2] Members 10, 11 are riveted together by placing a collar 34 over a shank 30 of a rivet 25 having a preformed crowned head 27 with the crown height to head diameter ratio being 2-20%, and upsetting the preformed head 27 and shank 30, whilst restraining the collar 34 against radial expansion by a sleeve 40, to displace rivet material into the hole from both rivet ends and to form an upset head 37. The amount of swell of the rivet and hole can be controlled, for example by making the swell at positions A and D equal and greater than that at positions B and C. After riveting, a rivet head having a flat face 49<SP>1</SP> is formed. The crown of the rivet may have a spherical surface 49 or have a conical or frusto-conical shape. The preformed head may be shaped to rest against the sheet 10. In another embodiment, Fig. 9, the diameter 60 of the collar is smaller than that of the hole, the rivet shank 61 being partially or wholly tapered or having a reduced diameter at the collar. The rivets and sheets may be of aluminium or titanium.
Patent GB-1406030-A (GB)
Title: Lithography
IPC: G03F7/06
Filed: 1971-09-10
Abstract: 1406030 Lithographic fix KODAK Ltd 7 Sept 1972 [10 Sept 1971] 42274/71 Heading G2M An aqueous lithographic fix composition for rendering silver images oleophilic contains (i) an acid, (ii) iodide ions, (iii) an organic cationic compound containing a lipophilic group, and either (iv) a heterocyclic compound having a nitro group bonded to an aromatic nucleus or (v) an organic cationic compound having an aromatic group but no nitro group; components (iii) and (v) are optionally the same when they are cetyl pyridinium chloride or bromide. The composition may also contain a water-miscible alcohol.
Patent GB-1124476-A (GB)
Title: Improved method and means for the manufacture of helical seam tubing
IPC: B21C37/12
Filed: 1966-09-22
Abstract: 1,124,476. Making helically seamed tubes; welding by fusion; straightening; coiling. TUBE & PIPE INDUSTRIES (PROPRIETARY) Ltd. 22 Sept., 1966 [28 Sept., 1965; 26 April, 1966 (2)], No. 42378/66. Headings B3A, B3E and B3R. An apparatus for forming a helically seamed tube 20 comprises a forming assembly consisting of three co-operating rollers 11, 12, 12a and a welding station 14 located above the central roller 11. Metal strip 8 is fed from a coil 3 by  feed rollers 5 past edge cleaning wheels 4 and through a series of straightening rollers 9. The strip 8 is bent by the rollers assembly 11, 12, 12a to form a helically seamed tube 20. The welding station 14 continuously welds abutting edges of the strip 8 together and simultaneously a second welding station welds the abutting edges together from the inside of the tube. A hollow electrically conductive conduit 16 passes through the hollow roller 11 and an electrode is fed through the conduit to the second welding station. Welding flux is fed by compressed air along a pipe to a discharge nozzle 21. A submerged arc welding operation is performed on the inside wall. Alternatively a high frequency electrical welding operation may be used.
Patent GB-1494288-A (GB)
Title: Magnetic mines
IPC: F42B22/04
Filed: 1975-10-21
Abstract: 1494288 Devices for detonating magnetic mines FORENADE FABRIKSVERKEN 21 Oct 1975 43186/75 Heading F3A [Also in Division G1] A device for detonating a magnetic, sea or land, mine in response to the approach of a combat vehicle comprises, a spaced pair of opposedly connected pick-up coils for generating signals proportional to the time rate of change in the magnetic gradient therebetween, a firing means for detonating, in use, the mine, and amplifying means for amplifying and transferring the signals to the firing means, the amplifier having a finite gain at zero frequency and a corner frequency so selected that only at low frequencies is the gain sufficient to operate the firing means, whereby the device is sensitive only to conventional combat vehicles whose relatively slow movement generate signals having a predominantly low frequency content.
Patent GB-1175015-A (GB)
Title: Flame Spray Gun
IPC: B05B7/14
Filed: 1968-09-12
Abstract: 1,175,015. Spray producers. METCO Inc. 12 Sept., 1968 [13 Sept., 1967], No. 43309/68. Heading B2F. A powder type flame spray gun for use with a remote powder reservoir 2 from which powder is carried towards the gun by a carrier gas, comprises means provided adjacent the gun for separating the powder from the carrier gas and feeding the separated powder directly into the gun. In the construction shown the separating means comprises a separating chamber 4 having a gravity flow passage 5. The entrained powder enters the chamber through a inlet pipe 13 and is projected towards the passage 5, the carrier gas escaping from the chamber 4 through a vent 12. The separated powder passes through the passage 5, a valve 6 and a feed passage 7 in which it is picked a nozzle 9 into a flame sheath emerging from orifice 8. The powder is then projected through a nozzle 9 into a flame sheath emerging from nozzle jets 10. In a modification the inlet to the chamber is tangential thereto the powder being separated from the carrier gas by centrifugal forces (Fig. 2, 3, not shown).
Patent GB-1414812-A (GB)
Title: Device for sustained release of drugs and like active agents
IPC: A61K9/00
Filed: 1972-09-19
Abstract: 1414812 Sustained release medicaments ALZA CORP 19 Sept 1972 [30 Sept 1971 17 Aug 1972] 43369/72 Addition to 1333576 Heading A5B A device which delivers a medicament at a substantially constant rate over a prolonged period of time comprises a sealed container containing a solid medicament and a liquid in which it is sparingly soluble, the container being composed, at least partially, of a material through which the medicament diffuses at a rate slower than that at which it can be dissolved by the liquid and transported to the inner face of the container wall (this being the sole mode of release of medicament). The container material may be one through which the medicament will diffuse or it may be a microporous material, the pores of which are filled with a liquid through which the medicament diffuses. A very wide range of medicaments. liquids and container materials are specified, the latter being chiefly various natural and synthetic polymers. Examples relate to contraceptive implants and intra-uterine devices comprising a hormone, e.g. progesterone, and a liquid e.g. asilicone oil, aqueous polyvinyl pyrrolidone or aqueous carboxymethylcellulose enclosed within a container composed essentially of polyethylene, ethylene/vinyl acetate copolymer or cured silicone; cortisone and aqueous methyl cellulose in an ethylene/vinyl acetate elastomer container; phenagocine HCL and water in a PVC, ethylene/vinyl acetate copolymer or radiation cross-linked poly(cis-1, 4-polyisoprene); pilocarpine and an unspecified liquid in ethylene/vinyl acetate copolymer (ocular insert) and various shaped devices (polyethylene "band", polyethylene heart valve and polyamide suture) containing unspecified medicaments.
Patent GB-1320726-A (GB)
Title: Turrets for transporting containers
IPC: B29C39/38
Filed: 1970-09-10
Abstract: 1320726 Moulding container transporting turrets DENNISON MFG CO Ltd 10 Sept 1970 [11 Sept 1969] 43418/70 Heading B5A [Also in Divisions B6 and E2] A rotary plastics turret 40 has peripheral recesses 41 therearound for the transport of plastics bottles to a location at which a decoration is applied to the containers (see Division B6), and is cast from epoxide resin, which may include aluminium filler, using the plastics containers as moulding surfaces to define the recesses 41. The mould 21 for the turret is cylindrical with a sheet 33, e.g. of aluminium foil or polyethylene, defining the base thereof and is supported on a jig 20, at a collar 23 whereof a shaft 22 to be cast into the turret 40 is retained by a bolt 24. The plastics bottles 29 are each retained in position within and above the base of the mould 21 by a screw 31 extending from the bottle cap and fixed, by a nut 32, along a slot extending radially of a plate 25 which is located at 27, 28 to the turret shaft 22. Each bottle 29 may alternatively be retained by a fastening (see Division E2) comprising a rubber plug expanded within the container neck when the upper end of a shaft, attached to a disc beneath the plug and passing through a plate slot, is upwardly displaced by a lever fixing so that washers around the shaft are displaced through the slot, from below to above the plate 25, to retain the plug in expanded condition. The epoxide resin is poured into the mould coated with release agent, e.g. through openings in the plate 25, and cured in an oven or at room temperature. The moulded turret is then cut down in a lathe to leave exposed the peripheral container recesses 41 and, after removing the bottles 29, a groove 42, Fig. 7, is cut out.
Patent GB-1031862-A (GB)
Title: Electric current generation by means of thermionic energy converters
Inventor: GABOR DENNIS
IPC: H02M11/00
Filed: 1963-11-04
Abstract: 1,031,862. Thermionic generators. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Oct. 29, 1964 [Nov. 4, 1963], No. 43501/63. Heading H1D. [Also in Division H2] In an alternating current generator, the output from at least one thermionic energy converter 3 is switchable to flow along two or more alternative paths in cyclic sequence by means of control signals applied to the auxiliary electrodes of thermionic converters 1, 2 of the triode-type described in Specification 968,392 included in said paths. The paths also include transformer windings 9, 10 coupled to an output winding 11 from which an alternating output voltage is derived. Control signals are applied to the auxiliary electrodes of converters 1, 2 through individual rectifiers from a centretapped secondary winding 15 of a control transformer 12 energized from an oscillator 13 connected to output winding 11. After application of a starting pulse along lines 17, the circuit is self-maintaining. The control transformer 12 has a further secondary winding 14 connected to supply full wave rectified pulses to the auxiliary anode of converter 3. The converter 3 may be replaced by a caesium diode converter, or by a plurality of converters connected in series. An arrangement for generating a threephase output is also described; Fig. 3 (not shown), control signals shaped to provide a pure sinusoidal output, or a constant current through converters 29-31, being applied to the auxiliary electrodes of triode-type converters 25-27 via a star-connected control winding 32 which is coupled to the star-connected primary winding 21-23 of the output transformer, which comprises a delta-connected secondary winding.
Patent GB-1488680-A (GB)
Title: Hydrated calcium aluminates and silicates
IPC: A01N25/08
Filed: 1974-10-08
Abstract: 1488680 Hydrated calcium aluminates and silicates LAFARGE 8 Oct 1974 [24 Oct 1973] 43526/74 Heading ClA Mineral fillers, comprising one or more hydrated calcium silicates and/or calcium aluminates wherein the molar ratio of Al 2 O 3  to CaO is 1 : 1 to 1 : 4 are prepared by hydrating one or more crushed anhydrous calcium silicates and/or calcium aluminates, with additional anhydrous or hydrated lime if necessary to provide the required molar ratio, at 10-100‹ C. with sufficient water to give a solids content of 5-70 wt. per cent, the mixture being subjected to abrasion (e.g. by milling) during hydration and the resulting powder being dried. The starting material may be refractory aluminous cements or white Portland cements. The preparation of C 2 AH 8 , C 3 AK 6 , C 4 AH 3  (where C=CaO and A = Al 2 O 3 ) is described in the examples.
Patent GB-989427-A (GB)
Title: Improvements in or relating to electrical capacitors
IPC: H01G4/224
Filed: 1961-12-05
Abstract: 989,427. Capacitors. A. H. HUNT (CAPACITORS) Ltd., and N. F. ODELL. Nov. 30, 1962 [Dec. 5, 1961], No. 43569/61. Heading H1M. A capacitor comprises in combination a cylindrical capacitor unit 13 with a central axial bore, an outer casing 11 and plastic spacers 14, 19, one at each end of the unit. These spacers each have a spigot, 18 or 21 respectively, projecting into the bore of the capacitor unit and radial arms such as 16 which engage with the casing, to ensure proper location of the unit within the casing. One spacer rests in the closed end 14 of the casing, while the other fits in the open end and is fabricated with a cylindrical extension 22 supported by ribs 23. The capacitor is closed by a composite deck 24 of rubber sheet and resin bonded paper which bears against the extension 22 and is held by lips in the casing 12. Relative movement in any direction between the capacitor unit and the casing is prevented by these arrangements.
Patent GB-954529-A (GB)
Title: Steam-water mixing device for steam-cooled reactor
IPC: G21C11/08
Filed: 1962-11-19
Abstract: 954,529. Reactors. UNITED STATES ATOMIC ENERGY COMMISSION. Nov. 19, 1962 [Dec. 11, 1961], No. 43711/62. Drawings to Specification. Heading G6C. In a light water moderated nuclear reactor the ver tical fuel tools are cooled by an upward flow of a mixture of steam and water droplets. Moderator water enters the fuel rod coolant tubes through small holes in the lower sections to form the droplets which are urged upwards by a flow of dry steam inside the coolant tubes fed into the reactor pressure vessel from an external source. Each fuel coolant tube has a flexible support at its lower end and contains cylindrical fuel rods separated by wire spacers. The rods are of UO 2  clad in zircalloy. It is stated that control of the reactor may be effected by adjustment of the pressures of the steam and water.
Patent GB-921827-A (GB)
Title: Improvements in or relating to sheet metal straightening machine
IPC: B21D1/02
Filed: 1960-12-21
Abstract: 921,827. Straightening. SMERALOVY ZAVODY NARODNI PODNIK. Dec. 21, 1960 [Dec. 21, 1959], No. 43899/60. Class 83 (4). A roller type sheet straightening machine is characterized in that the cross-beams carrying the upper and lower rollers are offset from one another and in that the holes in the cross-beams for the roller bearings are of a diameter greater than that of the rollers so that the rollers may be withdrawn through said holes. A series of upper rollers 1 is carried in cross-beams 3 offset from cross-beams 4 carrying a series of lower rollers 2. The cross-beams are formed with holes 4a, of a diameter greater than that of the rollers, which accommodate bushings 7 carrying the bearings for the rollers. The bushings 7 are held in position by pins 8 but, upon removal of the pins, may be swung out of the holes 4a to allow withdrawal of the rollers through the holes.