baber/WOPTO huggingface dataset:
Patent GB-1197927-A (GB)
Title: Equipment for Removing Dispersed Liquids from the Ground
IPC: F04D9/00
Filed: 1967-10-16
Abstract: 1,197,927. Valves MORETRENCH CORP. 16 Oct., 1967 [14 Oct., 1966 ; 25 April, 1967], No. 47092/67. Heading F2V. ]Also in Division F1] In a pumping apparatus in which gas is separated from the pumped liquid upstream of the pump (see Division F1), the gas is separated in a chamber 40, Fig. 3, and is delivered through a peeler valve 54 and conduit 42 into a further separating chamber 44 from where the gas is withdrawn by a vacuum pump via a peeler valve 60 and conduit 46. Each peeler valve is controlled by a respective float in accordance with the liquid level in the associated chamber, and comprises a flexible flap 112 biased to its closed position by a relatively-stiff resilient member 114, and is joined to its float by a pair of rubber rings 116, 118. An alternative floatvalve construction, Fig. 5 (not shown), for the chamber (44), has a conically-shaped metal valve member (124) which co-operates with a frusto-conical plastics seat (126). The valve member is connected to one float or to a pair of vertically-spaced floats (132, 134) by a rod (130) which passes through a guide hole in a fixed bracket (142) and which may carry a weight (140). The total weight of the valve components (124, 130, 132, 134, 140) is balanced by the upward buoyancy force when the liquid level reaches a predetermined level (148). On closure of the valve a pressure differential develops across the valve member and holds it tightly on its seat until the liquid level has fallen well below the level (148). However, if the apparatus malfunctions, the pressure differential developed will be much greater so that the valve member will be held against its seat even after the chamber (44) has completely drained. The valve can then only be re-opened by turning off the vacuum pump or by opening an atmosphericair-inlet valve (146).
Patent GB-1322076-A (GB)
Title: Arc welding process and electrode for stainless steel
IPC: B23K35/36
Filed: 1970-10-05
Abstract: 1322076 Welding by fusion STOODY CO 5 Oct 1970 [24 Nov 1969] 47178/70 Heading B3R An arc welding electrode for making a weld of stainless steel comprises a hollow tube of a steel alloy having a diameter of 0À045 to 0À30 inch and having a filler of a slag-forming material including first and second components in the form of metallic oxides or materials capable of yielding metallic oxides under the conditions of welding which are soluble in the slag, the weight ratio of the filler to tube being from 0À2:1 to 1À5:1 and the weight ratio of the filler to the alloying metals of which the electrode is formulated to give the desired weld deposit being from 0À15 : 1 to 0À65 : 1, the components of the filler being chosen so that the filler, or fusion or decomposition derivative thereof, has a stable or equilibrium moisture content at 70 F. and 90% relative humidity of less than 2À0 weight per cent, the filler including a fluoride in at least an amount corresponding to the level of moisture content of the filler as defined by a straight line extending from 0 : 0 to 4À0 : 0À50 on a %CaF 2  vs. %H 2 O plot. The steel may comprise up to 1% carbon and may be alloyed with at least 10% chromium. Other alloying metals specified are aluminium, molybdenum, nickel, titanium, tungsten, vanadium, zirconium, manganese, columbium, silicon, ferrochromium, ferrosilicon, ferrocolumbium, ferromanganese, ferromolybdenum. The first component of the filler may be alumina, titanium dioxide, silicon dioxide, manganese dioxide, asbestos, potassium titanate. The second component of the filler may comprise zinc oxide, barium oxide, calcium oxide, calcium carbonate, magnesium oxide, magnesium carbonate, cobalt oxide, calcium oxalate, strontium oxide, titanium dioxide, manganese dioxide, potassium oxalate, lithium carbonate, zirconium carbonate, zirconium dioxide, and gallium sesquioxide. The filler may include, as deoxidizing agent, from 0À5 to 2% by weight of chromium, tantalum, niobium, gallium, aluminium, silicon, calcium, lanthanum, manganese, vanadium, zirconium, beryllium, titanium, boron, barium, magnesium, strontium, lithium, actinium, ferrosilicon, ferrochromium or ferromanganese and as fluxing agent, calcium carbonate, calcium oxide, calcium fluoride or sodium oxide. The electrodes may be packaged before use under conditions restricting the moisture content and may be used with a "stick-out" of several inches. The slag forming material may be fused into vitreous particles prior to incorporation in the steel tube.
Patent GB-1154864-A (GB)
Title: Wire Connectors
IPC: H01R27/00
Filed: 1966-10-24
Abstract: 1,154,864. Two-part couplings. OMEGA ENG. Inc. 24 Oct., 1966 [22 Oct., 1965], No. 47509/66. Heading H2E. A two-part coupling for connecting multiconductor thermocouple cables together comprises a male connector 1 with plug pins of different metals and thickness e.g. 12, 13 and a similar female connector 2 with sockets e.g. 14, 15, each connector having an insulating body comprising a base portion 3, a centre portion 11 and a cap portion 17, secured together by screws 18. The base portion 3 has a lug 6 having a passage 8 through which wires (not shown), extend into an aperture 4 and are clamped by screws 41 to the contacts 12-15. The centre portion 11 has an indentation 16 containing U-shaped springs 35, previously located in slots 38 of the contacts 12-15 to retain them in position. The cap 17 has narrow apertures 20-22, corresponding to three narrow, positive pins 13, e.g. of chromel, iron and copper, and wider apertures 23-25 corresponding to three wider negative pins 12, e.g. of Alumel (R.T.M.), "alloy 11" and manganese; grooves 34<SP>1</SP> in pins 12 distinguishing them from pins 13. Thus the the connectors 1, 2 may be used to join six thermocouple wires or, with two-contact connectors, to connect desired pairs of wires. In the embodiments of Figs. 11-13 (not shown), the cap 17 has one wide aperture in the centre of a triangle of three narrow ones; or one wide and two narrow apertures in a triangular configuration; or one wide between two narrow apertures in a linear configuration.
Patent GB-477790-A (GB)
Abstract: 477,790. Condensers. SCHUSTERIUS, C. Sept. 25, 1936, No. 26106. Convention date, Sept. 25, 1935. [Class 37] Metal plate electrodes are coated with dielectric in the form of a fused-on enamel or glaze containing titanium oxide or titanium compounds, with or without lead compounds as additives.
Patent GB-1403976-A (GB)
Title: Method for producing printed circuit boards
IPC: H05K3/10
Filed: 1972-08-29
Abstract: 1403976 Printed circuits PERSTORP AG 29 Aug 1972 [30 Aug 1971] 47895/74 Divided out of 1401815 Heading H1R A printed circuit board with plated through holes is produced by transferring an electrolytically deposited layer of copper or copper alloy less than 17 Ám thick from a first base in the form of a foil of aluminium, zinc or their alloys or steel less than 200 Ám thick to final base of fibre reinforced thermosetting plastics material, removing the first base, forming holes through the final base, plating the holes and etching the copper or copper alloy layer to form the circuit. The final base may be glass or polyester fibre reinforced epoxy resin. The through holes are plated electrolessly and a negative mask is applied to the copper layer. The exposed copper on the surface and in the holes is then thickened electrolytically and the mask dissolved. A quick etch then removes the parts of the layer not thickened to define the circuit.
Patent GB-969564-A (GB)
Title: Improvements in and relating to ball mills
IPC: B02C17/18
Filed: 1962-12-27
Abstract: 969,564. Ball mills. A. MARX. Dec. 27, 1962 [Dec. 27, 1961], No. 48631/62. Heading B2A. A ball mill for wet grinding comprises a fixed suction unit 3 for projecting into the material to be ground. The suction unit comprises a ventilation tube disposed upwardly and a suction tube disposed downwardly. Material to be ground and a solvent are introduced into a feed hopper 7 and conveyed into the mill by a worm 8. In a modification, the mill is surrounded by a cooling jacket through which water is passed and the solvent is introduced into the end of the mill opposite from that where the feed hopper is located. In another modification, oil is passed through the cooling jacket, and the solvent is introduced into the suction pipe.
Patent GB-951889-A (GB)
Title: Improvements in or relating to astable semiconductor multivibrators
IPC: B60Q1/38
Filed: 1962-12-27
Abstract: 951,889. Flashing light indicators. PHILIPS ELECTRICAL INDUSTRIES Ltd. Dec. 27, 1962 [Dec. 29, 1961], No. 47644/62. Heading G4F. [Also in Division H3] An astable multivibrator more particularly for use in flashing trafficators comprises first and second terminals for connection to a D. C. supply, a first transistor 1 having its collector connected through a resistance to the first terminal and its emitter to the second terminal, a second transistor 15 having its emitter connected through a resistor 5 to the base of the first transistor and its collector through a resistor to the first terminal, wherein a single feedback capacitor 3 in series with a resistor Z is connected between the base of the first transistor and the collector of the second transistor 15. In Fig. 3 the collector and emitter loads of transistor 15 are lamps 9, 9<SP>1</SP>, a tell tail lamp 13 being connected across transistor 15 to indicate that the circuit is oscillating. In Fig. 2 (not shown) the lamps 9, 9<SP>1</SP> are transferred to the output circuits of two power transistors driven in parallel from the multivibrator circuit and a third transistor drives the tell tail lamp. The lamps 9, 9<SP>1</SP> are pre-heated by resistors in parallel with the transistors. An additional contact may be provided on the trafficator switching arm to ensure that the capacitor is always discharged before the supply is connected. One or all of the transistors in the multivibrator may be silicon units.
Patent GB-1423582-A (GB)
Title: Apparatus for producing mouldings from chemical components which react quickly with one another
IPC: B29C39/24
Filed: 1973-10-19
Abstract: 1423582 Mixing in conduits BAYER AG and MASCHINENFABRIK HENNECKE GmbH 19 Oct 1973 [25 Oct 1972] 48828/73 Heading B1C [Also in Division B5] Moulding apparatus comprises means for introducing reaction components into a mixing chamber 9 (Fig. 1) and a remixing system 13 for homogenising the reaction mixture comprising an arrangement of channels provided with branches 16 and junctions 17, 18 arranged between the mixing chamber 9 and a mould cavity 19, the dividing plane of the mould extending through the mixing chamber 9 and the remixing system 13. The reaction components are supplied from storage containers 1, 2 through injection nozzles 7, 8 by pumps 5, 6. As shown the remixing system &c is formed in one part of the mould, the other part comprising a plane surfaced cover. Alternatively the system may be formed in both parts of the mould. In Fig. 3 (not shown) the remixing system comprises a series of barriers 33 formed in a sprue section 30. Fig. 4 shows a further embodiment comprising two mould parts 37, 38 hinged at 39. The remixing system 46 comprises two sections 50, 51 in the form of replaceable inserts 58, 59. In the section 50, an outlet 45 from a mixing chamber 44 opens into a distributing channel 52 connected by mixing channels 53 to a collecting channel 54. The section 51 comprises a distributing channel 52 connected by mixing channels 56 to a collecting channel 57. When the mould is closed the channels 53, 56 cross over one another. Channels 56 increase in cross section in the direction of flow while channels 53 decrease. In another embodiment the mixing channels have the same cross-sectional area but differ in depth and width over their length.
Patent GB-1481346-A (GB)
Title: Refuse treating plant
IPC: B65F9/00
Filed: 1974-11-13
Abstract: 1481346 Refuse treating plant J FROSSARD 13 Nov 1974 [21 Nov 1973] 49066/74 Heading B2A Household and like refuse is treated in a plant comprising a large collecting pit 5, at least one treating device comprising a feed hopper 7, a crusher 14 and a compactor 17 to push the crushed refuse into containers, means to transfer the refuse from the collecting pit to the feed hopper and to transfer the containers of treated refuse to trucks or lorries. In operation a lorry 4 Fig. 6 tips refuse into an intermediate pit 6 (one of several such pits). The lorry depresses a treadle 48 in backing up to the pit 6 and this actuates a jack 44 pushing a box 36 of the tipped rubbish into the main pit 5. The jack pusher 45 also clears fallen rubbish into a tunnel 50. A grab 27 transfers the rubbish from the pit 5 to the hopper 7 Fig. 2 whence it is fed by a conveyor 13 and crushed by the crusher 14 and distributed by a gate 16 and spout 15 to the compactors 17. Each compactor fills containers 9, Fig. 4, which are removed when full by a travelling crane 10 to transport trucks (11) Fig. 1, not shown. The pits 5 and 6 are in an enclosed building which includes doors 56, Fig. 6, to permit tipping from the lorries 4. The system includes a dust extractor 25, Fig. 4.
Patent GB-1276741-A (GB)
Title: Improvements in or relating to electronic switches
Inventor: GARDE DOUGLAS
IPC: H03F3/393
Filed: 1969-04-30
Abstract: 1276741 Field effect transistor switches; pulse modulation circuits SOLARTRON ELECTRONIC GROUP Ltd 30 April 1970 [30 April 1969 8 Oct 1969] 22114/69 Headings H3T and H4L Switching spikes in a field effect transistor switch are removed by feeding an anti-phased switching wave to a second control electrode of the transistor or to the gate of a further transistor having an output electrode connected to an output electrode of the switch transistor. In Fig. 2 the compensating transistor 35 is connected through a capacitor 36 in parallel with a chopper transistor 15, the drain-gate capacitance serving to feed an anti-phase chopping wave to the output of the chopper. Accurate balance may be obtained by a stiff wire 37 positioned between the transistors and bent to differentially adjust the capacitances. In Fig. 3 (not shown), capacitor 36 is omitted and the compensating transistor is switched between two non-conducting states. In Fig. 4 (not shown) the chopping wave is fed in antiphase to two gates. Fig. 1 (not shown) illustrates a chopper type amplifier with a known anti-phase despiking arrangement which chopper and the phase sensitive detector may be replaced by a chopper circuit in accordance with the invention.
Patent GB-1182045-A (GB)
Title: Improvements in or relating to Electric Insulators
Inventor: REBOSIO EDGARDO
IPC: H01B17/32
Filed: 1968-10-23
Abstract: 1,182,045. Etching. BRITISH INSULATED CALLENDER'S CABLES Ltd. 23 Oct., 1968 [23 Oct., 1967], No. 50358/68. Heading B6J. [Also in Division H2] In a method of making an insulator in which a rod of resin bonded glass or other high tensile inorganic film is covered, to prevent tracking, by a preformed sleeve of elastomeric polymeric insulating material, the internal surface of the sleeve is treated with an etchant, e.g. sodium - naphthalene - tetrahydro - furan, to render the surface capable of bonding to an epoxy-based adhesive resin which fills the annular space between the sleeve and the rod. The etchant is continuously mixed with nitrogen to improve its stability. The resin-filling is carried out by applying compressed air to the resin and creating a lower pressure in the annular space. The sleeve may be of P.T.F.E. or other fluoro-carbon polymer or copolymer and annular bodies preferably of the same material are secured at regular intervals to it to increase the length of the leakage path.
Patent GB-1176918-A (GB)
Title: Dehydrogenation of Alkyl Aromatic Compounds in the Presence of Nickel-Bearing Alloy Steels
IPC: C07C5/333
Filed: 1968-10-25
Abstract: 1,176,918. Dehydrogenating alkyl-aromatic hydrocarbons. BADGER CO. Inc. 25 Oct., 1968 [14 Dec., 1967], No. 50792/68. Heading C5E. Alkyl-aromatics are dehydrogenated by passing an admixture thereof with steam through a catalytic dehydrogenation zone in a reactor having the hydrocarbon contacting surfaces formed of a nickel-bearing alloy steel, the feed and steam having been pre-mixed in a chamber constructed of a non-nickel alloy steel. As shown, the reactor comprises a pressure shell 2 provided with an inlet pipe 6 closed at its upper end by a head 8, the pipe 6 being surrounded by a cylindrical wall 12 which encloses a catalyst bed between itself and pipe 6. Pipe 6 is constructed of a non-nickel alloy steel, and the remainder of the reactor of a nickel-bearing steel. Alkyl-aromatic and steam are premixed in pipe 6 and then flow radially across the catalyst bed by means of orifices 10 and 24 in the pipe 6 and wall 12 respectively. An alternative arrangement is for alkyl-aromatic and steam to be pre-mixed externally of said reactor, which may then be formed entirely of nickel-bearing alloy steel, and may also operate with reverse flow from that shown. More than one reactor may be provided in series, those after the first being entirely formed of nickelbearing alloy steel. Suitable catalysts include ferric oxide-potassium oxide, magnesium oxideferrous oxide-potassium carbonate, and alumina-silica.nickel, and reaction temperature may be 580-660‹ C. The process is particularly applicable to the production of styrene.
Patent GB-1165040-A (GB)
Title: Vehicle with Ground Effect Device.
IPC: B62D53/06
Filed: 1967-11-08
Abstract: 1,165,040. Air cushion vehicles. NORTH AMERICAN ROCKWELL CORPORATION. 8 Nov., 1967 [19 Dec., 1966], No. 50824/67. Heading B7K. An articulated tractor-trailer is provided under the trailer with an air cushion device 30 which is supplied with compressed air drawn through an air intake 34 by a compressor 32 and delivered to the cushion through a duct 44, which is provided with a valve 38, whereby the supply of air may be discontinued or regulated either at will or in association with the operation of the vehicle brakes whereby adequate traction and steering may be maintained. In another embodiment, the tractor is powered by a gas turbine engine which supplies gas for the cushion.
Patent GB-1446416-A (GB)
Title: Waveguide couplers
IPC: H01P5/18
Filed: 1972-11-04
Abstract: 1446416 Directional couplers; band separation filters MARCONI CO Ltd 25 Oct 1973 [4 Nov 1972] 50949/72 Heading H1W In order to obtain coupling between two waveguides having different phase velocities, the guide associated with the higher velocity is of sinuous form such that the ratio of the axial lengths of the two guides is equal to the ratio of their phase velocities. Thus, a semicircular waveguide 1, Fig. 1, transmitting waves in the TE 01  circular-electric mode may be coupled to a rectangular guide 4 having a non-rectilinear axis. This axis may be sinusoidal (Fig. 3) in which case the ratio of the axial distance s along the sinusoidal guide to the axial distance r along the rectilinear guide is equal to the ratio of the respective phase velocities. Coupling slots 7 are spaced in known fashion on the axis of the rectilinear guide. In the arrangement of Fig. 4, the guide 4 associated with the higher phase velocity is provided with rectilinear coupling sections 27 joined by curved compensating sections 28. In this case the ratio of L@ to (L r  + L r <SP>1</SP>) is equal to the ratio of the phase velocities. In a further modification (Figs. 5, 6, not shown), the waveguide 4 has an axis of zigzag form and the corners of the zig-zag may be rounded. The zig-zag may have an amplitude less or greater than the width of the waveguide 1. The coupling slots are arranged along each limb of the zig-zag and thus extend obliquely over the width of the waveguide 1. Those slots lying on the axis of the waveguide 1 are aligned with this axis and those off the axis are oriented to produce correct inter-mode coupling. In a band-separating filter using a serial arrangement of couplers each tuned to a different frequency band, the input to the semi-circular waveguide 1 comprises a circular-to-semicircular transition section. The last coupler in the series is associated with the lowest band and need not be tuned.
Patent GB-1532448-A (GB)
Title: Safety belt retractor in particular for an automobile
IPC: B60R22/44
Filed: 1975-12-16
Abstract: 1532448 Safety belt retractor AUTOMOBILES PEUGEOT and REGIA NATIONALE DES USINES RENAULT 16 Dec 1975 [24 Dec 1974] 51370/75 Heading A3V [Also in Divisions B8 and F2] A safety belt retractor e.g. for an automobile comprises a belt attached to a drum 4 rotatably mounted in housing 1, the drum being biased by spring 6 to retract the belt, helically grooved pulleys 10, 11 whose diameter increases from one end to the other being fixed to drum 4 and shaft 7 respectively, a cable 14 being fixed at each end to each respective pulley, wherein means responsive to linear acceleration of the belt upon its unwinding, rather than angular acceleration of the drum, block the drum. The belt return force is roughly constant whether the belt is entirely wound or greatly unwound. Automobile deceleration causes ball 24 to swing lever (22) into engagement with disc 21 fixed to drum 4. Belt protraction turns pulley 10 and hence cylindrical pulley 16, shaft 15 and wheel 20. Wheel 20 turns wheel 18 rotatably mounted on shaft 5. Block 19 on wheel 18 pivots lever (28) to engage notches (27) inside case 26 rotatably mounted on shaft 5. Tab (30) on case 26 acts under lever portion (22b) to pivot lever (22) to engage disc 21. The helical grooves may be of larger pitch adjacent the larger diameter end of pulleys 10, 11.