baber/WOPTO huggingface dataset:
Patent GB-962349-A (GB)
Title: Magnetic sensing head
Inventor: LAWSON ROBERT
IPC: G05D1/02
Filed: 1961-06-07
Abstract: 962,349. Measuring displacement electrically. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. May 10, 1962 [June 7, 1961], No. 20570/61. Heading G1N. [Also in Division H4] A magnetic sensing head comprises two sensing coils 6, 7, the core axes of which are mutually at right angles and which respectively produce a signal and a reference voltage dependent upon the magnitude of the component of a magnetic field along the respective core axes generated by a wire 3 such as a leader wire, the voltages being fed to a phase sensitive detector D1-D4 (Fig. 3) arranged to provide an output the magnitude of which depends on the amplitude of the signal voltage and the polarity of which depends on the relative axial components of the core magnetic fields. The output voltage from coil 6, the axis of which is substantially in line with the lines of force produced by a leader wire 3 is a maximum and small changes in the relative angle produce small changes in output voltage compared with those produced by coil 7 the axis of which is normal with the lines of force and the output from which will be zero when that from the coil 6 is at a maximum. The magnitude of the half wave rectified output of the phase sensitive detector (Fig. 3) is dependent on that of the signal voltage and is of a polarity determined by the relative position (N, M Fig. 2) of the coils 6, 7 and the wire 3. The reference voltage output from coil 6 may be connected to the detector through a saturating amplifier, and the detector output used to control a vehicle guidance system as described in Specification 932,266. The coils 6, 7 may be capacitively tuned to the frequency of the signal applied to the leader wire 3.
Patent GB-589496-A (GB)
Title: Improvements in frequency detecting systems
IPC: H03D3/16
Filed: 1944-10-25
Abstract: 589,496. Frequency modulation. PHILIPS LAMPS, Ltd. Oct. 25, 1944, No. 20775. Convention date, Oct. 27, 1943. [Class 40 (v)] [Also in Group XXXV] Relates to balanced detectors of frequency variations in which two difference frequencies are derived from two oscillators, tuned above and below the variable frequency, and the difference frequencies are applied to counterintegrator discriminators to provide opposed D.C. outputs. The reference frequencies are generated by crystal-controlled oscillators O<1> O<11> which feed mixers M<1>, M<11> respectively, the variable frequency being applied through terminal 10 to both mixer stages. In the mixer outputs, the oscillator outputs are byepassed by condensers 29, 31 and the difference frequencies fed by condensers 32, 34 respectively to discriminators D<1>, D<11>, which are of the counter-integrator type described in Specification 599,907, [Group XXXV], as open to inspection under Sect. 91. The counter-valves V1, V2 have anode circuits comprising inductances 48 and 52 respectively across which voltage impulses are developed at each halfperiod of like sign of the difference frequency which are fed by inductive coupling to coils 54, 62 respectively in the circuit of diodes V3<1>, V3<11> respectively, the load resistances 56, 64 of which produce opposing voltages at the output terminals 20, 22. The circuit may be used to stabilize the frequency of an oscillator at about the mean frequency of the reference oscillators by producing a control voltage when frequency drift,occurs and the stabilized oscillator may be that of a frequency modulation transmitter, the control and modulating potentials being applied to a common thermionic reactance connected to the oscillator. Specification 546,721 also is referred to,
Patent GB-1307293-A (GB)
Title: Methods of making frames for high speed printers
IPC: B41J29/02
Filed: 1970-04-30
Abstract: 1307293 Selective printer frames DATA PRINTER CORP 30 April 1970 [8 May 1969] 20791/70 Heading B6F [Also in Division B3] A high-speed printer frame is made by stamping sheet-metal apertured laminations, connecting the laminations together so that the apertures are in registration and finishing some of the apertures to predetermined centres and diameters. The printer frame comprises a pair of laminated side frames 1, 2 connected to a cast iron printer head mounting frame 3 by bolts 23 and to a steel tie-bar 4 by bolts received in notches 10, 11 in the plates 1, 2. The crosspieces 3 and 4 are accurately located by dowel holes 21, 22 and 12, 13. A pair of laminated yoke frames 5, 6 are pivoted to the side frames 1, 2 by pivot pins 37, the relative movement between the frames being limited by pins 29 on the plates 1, 2 co-operating with slots 28 in the plates 5, 6. The yoke frames 5, 6 are connected together by a pair of aluminium ribbon guides 7, 8 which are accurately located and mounted by holes 38. The plates 1, 2, 5 and 6 are formed with numerous holes for locating various components of the printer. The frame laminations are bonded together by spot-welding, brazing, riveting, bolting, cementing or doweling.
Patent GB-616987-A (GB)
Title: An improved flexible coupling
IPC: F16D3/68
Filed: 1946-07-12
Abstract: 616,987. Universal joints. PITTALUGA, G. July 12, 1946, Nos. 20968 and 20969. Convention dates, July 12, 1945, and Dec. 27, 1945. [Class 80 (ii)] [Also in Group XXXII] A universal joint comprises a series arrangement of more than two metal discs or rings 1, Figs. 1 and 3, having coacting alternating projections 2 on their opposed faces and being held together by incorporation in natural or synthetic rubber or other resilient discs or rings 3 having portions engaged between the projections to transmit torque in compression. The rubber discs or rings may be separate or form one integral body as shown, and alternate portions in any disc or ring may be of equal or differing extent, or the portions on one side of each projection may be omitted. The number of portions and, in the disc construction, the size of the discs, may vary from one rubber member to another, and, where the rubber members are separate, they may be of differing compositions. Lateral expansion of the rubber under compression may be absorbed by spaces 4, formed by chemical or mechanical means during manufacture, or, if no spaces are provided, by axial expansion of the joint, which expansion may be opposed by yielding means adjustable to control the flexibility. Joints may be made of any desired length and cut down afterwards as required.
Patent GB-130540-A (GB)
Title: Improvements in and relating to Feed Water Heaters and Fuel Economisers for Marine Boilers and the like.
Inventor: HARBINGER WALDEMAR
IPC: F22D1/20
Filed: 1918-12-16
Abstract: 130,540. Harbinger, W. Dec. 16, 1918 Tubes, water.-In a feedwater heater and auxiliary steam-generator fitted in the smoke-box of a marine boiler, of the kind comprising horizontal water-tubes connected to horizontal headers, as described in Specification 27760/08, one of the headers is placed above and the other below the boiler water-level, the tubes being arranged transversely and the headers longitudinally of the boiler. Vertical sets of water tubes 6 joined by junction boxes 7, 8 are connected to cylindrical headers 2, 3 supported by brackets 23, 24 on the sides of the smokebox. Doors 25 are fitted on the front of the headers to afford access to the tubes. The junction boxes 8 are free to slide one upon the other and upon their support 35. The tubes may be fitted with tubular cores. To use the apparatus as an auxiliary generator, the feedsupply connexions 11, 22 are closed and the cocks 15, 20 are open to place the tubes in free communication with the boiler through pipes 14, 19.
Patent GB-639765-A (GB)
Title: Improvements in or relating to mattresses
Inventor: SMITH LESLIE
IPC: A47C27/05
Filed: 1948-08-10
Abstract: 639,765. Mattresses. SLUMBERLAND, Ltd. Aug. 10, 1948, No. 21025. [Class 52 (iv)] Pockets or bands 11 of fabric are secured to the rear of a border or boxing strip 10 at the four corners of a mattress to hold additional padding to stiffen the boxing at these points.
Patent GB-466158-A (GB)
Title: Improvement in preservation of food substances
IPC: A23L3/3508
Filed: 1935-07-24
Abstract: Foodstuffs, including beverages, are preserved by incorporating or producing therein an organic peroxide in an amount in excess of that necessary to effect merely a bleaching action, the amount being 0,1-2 per cent by weight of the foodstuff.  The peroxide may be produced from an acid, e.g. lactic, capric, caproic, caprylic, butyric, stearic or palmitic acid, or an alcohol, ether, ketone, anhydride or ester.  The incorporation may be effected by solution suspension or emulsification, or by contacting the foodstuff with a solution of the peroxide; e.g. fruits and vegetables are immersed in a 2 per cent solution of a peroxide such as the peroxides of citric, malic, tartaric and other fruit or vegetable acids.  The peroxide may be produced within the foodstuff by changing constituents thereof, e.g. in the case of butter, the butter fatty acids, butyric acid being converted into butyryl peroxide, or by adding a compound which can be converted into a peroxide and preferably found in the foodstuff, e.g. a fat, a fatty oil, an essential oil, a terpene, an acid or a sugar. The conversion may be effected by aerating under the influence of actinic light, or in the presence of a catalyst such as cobalt, manganese or iron oleate or other metal salt of a fatty acid.  The incorporation in butter may be effected before, during or after the churning.  The foodstuff may finally be hermetically sealed in a container.  In an example, milk is preserved by adding 0,1-2 per cent by weight of an organic peroxide derivable from a food constituent, e.g. a peroxide of lactic, butyric or other butter or other fatty acid, or a mixture thereof produced by treating a butter fatty acid mixture.  The fatty acid peroxides may first be mixed with cream which is then added to the milk.  The milk is next sealed in sterile containers.  The treatment of meat and fish, which may be immersed in uncooked condition in a solution or suspension of the peroxide which is preferably a peroxide of a fatty acid which is found in the meat or fish, and of fruit juices is also referred to.  The Specification as open to inspection under Sect. 91 comprises also the use, in place of the organic peroxides, of organic ozonides which may be produced from the same organic compounds as are the peroxides, ozonization being employed in place of aeration.  This subject-matter does not appear in the Specification as accepted.  Reference has been directed by the Comptroller to Specifications 102,967, 186,571, 327,670, 328,544, [all in Class 58], and 334,531, [Class 81 (i)].
Patent GB-606676-A (GB)
Title: Improvements in the disposition of reaction jet propelling means on aircraft
IPC: B64D39/00
Filed: 1945-08-17
Abstract: 606,676. Disposition of aircraft jet-propulsion means. SOC. RATEAU, and ANXIONNAZ, R. Aug. 17, 1945, No. 21050. Convention date, Jan. 7, 1942. [Class 4] Jet propelling means for an aircraft are set at such an angle a to the wing A on which they are supported (i.e. are set at an incidence i) that the ratio of the increase #<SP>N</SP> of lift over that at zero incidence to the decrease #<SP>T</SP> of thrust from that at zero incidence is equal to the lift /drag ratio of the wing. Preferably the axis of the propelling means is curved in accordance with the curvature of the mean axis of the aerofoil defined as the locus of the centres of circles inscribed in the profile of the wing. Where the axis is so curved the angle α is defined as the angle between the chord of the wing and the straight line joining the centres of the inlet and outlet apertures of the propelling means.
Patent GB-805921-A (GB)
Title: Improvements in and relating to the production of polymeric materials
Inventor: BAMFORD CLEMENT HENRY
IPC: C08F4/00
Filed: 1955-07-21
Abstract: Ethylenically unsaturated compounds, e.g. acrylic acid, acrylonitrile, methyl acrylate, methyl methacrylate, styrene and vinyl acetate are polymerized in the presence of, as a modifier, a tertiary amine having the general formula: <FORM:0805921/IV (a)/1> in which R and R3 are hydrogen, alkyl or aryl radicals, which may be substituted, and R1 and R2 are alkyl radicals, aryl radicals or, in conjunction, an alicyclic ring, and also a catalyst which does not enter into reaction with the amine under the polymerization conditions, e.g. azobisisobutyronitrile.  Amines specified are trimethylamine, triethylamine, tri - n - propylamine, tri - n - butylamine, N - methyl - piperidine, N - ethyl - piperidine, dimethylaniline, N - methyl - diphenylamine, beta - piperido - propionitrile and beta, beta1 - diethylamino-propionitrile, the last two of which may be formed in situ in the polymerizing mixture by reaction of acrylonitrile with piperidine or diethylamine.  The process may be used to produce block copolymers by polymerizing a monomer to form a polymer having an amine end-group and then polymerizing in the presence of this polymer a monomer having a higher electron accepting capacity than the first monomer.  In an example, methyl methacrylate is polymerized in bulk in the presence of triethylamine and azobisisobutyronitrile and after purification of the resulting polymer acrylonitrile is added thereto and polymerized in the presence of a further quantity of azo-catalyst, thereby producing a block copolymer of acrylonitrile and methyl methacrylate. Specification 715,194 is referred to.
Patent GB-275997-A (GB)
Title: Process for coupling rectifiers
IPC: H02M7/10
Filed: 1927-08-10
Abstract: 275,997. Andre, H. Aug. 11, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Vapour and vacuum or low-pressure apparatus, arrangements of.-Relates to the conversion of A.C. to high tension D.C. by means of series connected groups of valves, and consists in supplying each rectifier group from a separate transformer, or from separate secondary windings cooperating with a common primary winding. Fig. 1 shows the first-mentioned arrangement in which pairs of valves 6, 7, 6<1>, 7<1>, 6<11>, 7<11>, arranged to produce full-wave rectification of the current supplied by transformers 2, 2<1>, 2<11>, are connected in series to supply high tension D.C. to a load 8. Each pair of valves may be replaced by a single valve having three electrodes.
Patent GB-1464223-A (GB)
Title: Polyurethane-coated leather-like sheet materials
IPC: B32B5/24
Filed: 1975-05-19
Abstract: 1464223 Polyurethane-coated leather-like material KURARAY CO Ltd 19 May 1975 [25 May 1974] 21252/75 Heading B2E A leather-like sheet material for making shoes comprises a substrate of polyurethaneimpregnated fibrous mat, a first coating layer of porous structure composed of a polyestertype polyurethane elastomer, and a second (or finish) coating layer formed by coating with a solution composed mainly of a polyestertype polyurethane elastomer obtained by reacting an organic diisocyanate, a linear or branched aliphatic or an alicyclic polyether glycol of molecular weight 500-4000 and derived from a C 4-14  glycol, and a lowmolecular weight compound having two active hydrogen atoms as a chain extender (particularly an aliphatic or aromatic glycol or diamine) so that the content of nitrogen atoms derived from the isocyanate groups is 3.7- 8.0% by weight, the finish-coating layer having a dry solid thickness of 3-30 microns. The substrate may be a non-woven, woven or knitted fabric of nylon-6, polyester, polyacrylonitrile, polyvinyl alcohol, regenerated cellulose, cotton, wool, polystyrene/nylon-6 or polyethylene/polyethylene terephthalate fibres. The fibres may also be "oriented multi-hole fibres" (i.e. fibres having a cross-section in which a number of holes appear) or "fine-denierbundle fibres" (i.e. fibres composed of a bundle of c.300 fibres of 0.01-0.0001 denier, the bundle being less than 0.5 denier thick). The first coating may be applied to the impregnated (and possibly coagulated) fabric as a solution followed either by immersion of the coated fabric in a non-solvent such as water to coagulate the coating or by evaporation of the solvent. The porosity of the first coating may be controlled by means of a coagulation-regulating agent (a number of which are specified) and the coating may be 0.1-0.5 mm thick. It may be embossed or coloured prior to application of the finish coating. The latter may particularly comprise a polyurethane derived from polytetramethylene ether glycol, p, p'-diphenyl-methane diisocyanate and 1, 4-butane diol or ethylene glycol but a number of other polyether glycols, diisocyanates and chain extenders are also specified. The finish coating, which may be non-porous, is applied by knife, roller or spray coating, gravure printing or by transfer coating using a release support such as a glass sheet, metal plate or a polyester or polyethylene film. A colouring agent may be incorporated in the finish coating or coloured and non-coloured layers may be applied alternately. The product may be further coated or may be embossed with a pattern.
Patent GB-143769-A (GB)
Title: Improvements in and relating to valve control mechanism
IPC: F01L1/34
Filed: 1919-08-29
Abstract: 143,769. Cole, Marchent, & Morley, Brailsford, R. S., Spooner, W. W., and Brailsford, A. Aug. 29, 1919. Hydraulic transmission of power. - In fluid-pressure engines having cam valve-gear a c t i n g through hydraulictransmission apparatus for each valve 12, a pair of hydraulic cylinders 4, 5 is used, which are spaced angularly apart by double the phase lead of the valve. The plungers 2, 3 are acted upon by rollers on bell-cranks 13, 14, either of which is effective according to the direction of rotation. The levers are controlled by a hand-operated forked lever 15. Gear to release the system of pressure, comprising a hand-operated plunger 17 and a cylinder 16<a> connected to the system, is provided.
Patent GB-183366-A (GB)
Title: Improvements in and relating to fuel injecting devices for internal combustion engines
IPC: F02B9/00
Filed: 1921-08-10
Abstract: 183,366. Gardner, E. Aug. 10, 1921. Cylinders receiving liquid fuel.-The fuel may be directed in different directions within the cylinder by tilting the injection nozzle bodily. The spherical or cylindrical end c of the nozzle is pressed against its seating by the roller g which is forced against the steel segment f on the nozzle by the screw j tending to rotate the lever h carrying the roller g about its pivot i. Cheeks k prevent side movement of the nozzle. The roller g and the segment f may be interchanged, and as a further modification the lever n omitted, the segment f being bolted to the cylinder direct. In an alternative form of the invention the outer end of the nozzle is fixed in a U-shaped member, the arms of which are pivoted about an axis passing through the centre of the spherical or cylindrical end c of the nozzle, which is pressed on its seating by a screw or a spring.
Patent GB-682514-A (GB)
Title: Improvements relating to loom warp beam weighting motions
IPC: D03D49/08
Filed: 1949-08-17
Abstract: 682,514. Warp beam weighing motions. WHITAKER, F. Aug. 17, 1950 [Aug. 17, 1949], No. 21358/49. Class 142(ii) A weight is moved along a lever of a pinion weighting motion by the rotation of a pinion secured to the weight and engaging a rack carried by the lever. The rack may consist of a cycle chain. A weight C slides on a lever A pivoted at B<SP>5</SP> to a stud on the loom frame. Rotation of a handwheel K' rotates a pinion engaging a chain D secured to the lever and moves the weight. A chain round the beam ruffle is attached to hook F which can be moved to engage one of a number to recesses B<SP>4</SP>. The weight may be moved to a non-weighting position against a stop A<SP>2</SP>. A wing- nut J<SP>1</SP> is tightened to lock the weight in position.
Patent GB-1565876-A (GB)
Title: Electrolytic cells
IPC: C25B13/04
Filed: 1977-05-20
Abstract: A method is disclosed forming a membrane over a standard diaphragm cell foraminous electrode and may comprise the steps of suspending a matting material in a liquid medium, inserting a foraminous electrode into the suspension, vacuum forming a layer of the suspended matting material over the surface of the foraminous electrode so as to substantially reduce the porosity of the foraminous electrode material, applying to the surface of the foraminous electrode with the matting material thereon; a layer of thermoplastic material which includes particles of perfluorosulfonic acid resin in the sulfonyl fluoride form, baking the foraminous electrode with the layers in place until the thermoplastic material is fused into a thin and uniform film on the surface of the matting material which is substantially permeable to hydraulic flow and hydrolyzing the perfluorosulfonic acid resin to change the sulfonyl fluoride form to the cation exchange sulfonic acid form. The forming of the membrane over a standard diaphragm cell electrode assembly eliminates substantial cathode costs involved currently for converting the diaphragm electrolytic cell to a membrane electrolytic cell.
Patent GB-892569-A (GB)
Title: Method and apparatus including a free piston for energy conversion
IPC: H02K7/18
Filed: 1959-06-23
Abstract: 892,569. Free-piston engines; regulating. TURNER, E. E. Jan. 23, 1959, No. 21555/59. Classes 7(2) and 7(6). [Also in Group XXXV] A free-piston engine for the direct conversion of fuel-energy into alternating current comprises a pair of oppositely moving annular pistons each acting in a radial magnetic field to generate current. The output coils of the two sections are connected in parallel to synchronize them. In a simple inductor form, Fig. 1, in which the generating coils 13, 14 and 15, 16 are stationary with respect to the pistons, 11, 12, each of which acts as a single shorted turn, the radial flux is produced by permanent magnets 18, 19 or by annular coils in spaces 21, 22. Both inlet 44 and exhaust 45 are turned to resonance by suitable extensions (not shown) so as to secure scavenging, a carburetter fuel input of known type and controlled in dependence on the output voltage to keep this constant, being provided in the induction. It is described (Fig. 2, not shown) how the output voltage may be stabilized by retroactive control of the carburetter setting. Alternatively fuel may be injected into the combustion chamber_40 in the manner of the Diesel engine. The annular pistons reciprocate on either side of a combustion chamber 40, inlet and exhaust ports 61, 71 being opened and closed by the pistons in the known twostroke manner. The pistons are returned by "bounce" chambers 78, 79 whose capacity is set by holes 80, 81. All the parts of the engine may be of material having the same coefficient of thermal expansion. In a modification, Fig. 4, the pistons 140, 141 themselves each carry oppositely wound generating coil sections and the current is transferred to the stator through the piston rings, the series-connected coil sections being connected in parallel for synchronization as before. Each piston comprises an inner and outer end mass 142, 143 acting in the combustion chamber 124 and "bounce" chambers 158 respectively. These end masses are joined by a central tubular winding section 144. Radial flux is generated by a permanent magnet 150 or an electromagnet having an annular exciting coil 151, the fact that the flux is in two oppositely directed parts making it necessary to wind the coils in two oppositely wound sections connected in series as mentioned above. The "bounce" chambers are insulated so that they form the live terminals, while the inner ends of the pistons are grounded. The combustion chamber 124 is fed by resonant central inlet and exhaust ducts 101, 102 as in Fig. 1, but in addition, annular ducts 126, 127 of the same length are provided which lead into the outer periphery of the combustion chamber. Cooling fins 170 and an inlet 172 for air or water, cool the combustion chamber. It is stated that the energy stored in the reciprocating masses is twenty times the energy withdrawn electrically and frictionally each cycle.