baber/WOPTO huggingface dataset:
Patent GB-1043795-A (GB)
Title: An improved method of assembling electrical apparatus
Inventor: HARRIS FREDERICK HENRY
IPC: H01F27/36
Filed: 1965-02-26
Abstract: 1,043,795. Inductors. M.E.L. EQUIPMENT CO. Ltd. Feb. 26, 1965, No. 8381/65. Heading HIT. A small inductor 1, 2 is held in aperture 4 of an insulating holder 3 by a thermoplastic sleeve 11 which is shrunk on by hot air, the whole being insulated by paper strip 12 and placed into copper screening can 13, the open end of which is then turned inwards. Holder 11 may have several apertures each carrying an electrical component or several holders may be inserted into the same screening can. The inductor may be connected to the screening can which may be earthed.
Patent GB-196456-A (GB)
Title: Improvements relating to draught and weather excluding devices for use upon doors
IPC: E06B7/20
Filed: 1922-03-23
Abstract: 196,456. Malpas, G. M. March 23, 1922. Draught, dust, and weather excluders.-An obliquely slotted bar 1 movable upon screws or projections on the door is normally adapted to project beyond that edge of the door removed from the door hinge and to contact a plate on the door jamb through the medium of an inclined face on one of the parts in order to be depressed against. the action of springs. When the bar is fitted to the outside of the door, a striker 6 on the bar 1 is adapted to engage a plate 7 on the door jamb, but when secured to the inside of the door only an inclined plate 8 on the door jamb is necessary. A slotted plate 10 is mounted over each slot 4 in the bar 1 and has a projection 11 adapted to engage one extremity of a helical spring 5, the other end being engaged bv a screw 3. The slotted plate and spring are protected by a cover plate 13. The bar is adapted to be guided by a member 9. Moisture is prevented from entering between the bar and the door by means of a metal cover 14 screwed to the door and bearing. against the outer face of the bar.
Patent GB-1263480-A (GB)
Title: Injectable adjuvant, method of preparing same, and compositions including such adjuvant
IPC: A61K39/39
Filed: 1969-02-17
Abstract: 1,263,480. Injectable adjuvants. HAVERLOCKHART LABORATORIES Inc. 17 Feb., 1969 [23 Feb., 1968], No. 8408/69. Heading A5B. An injectable, non-toxic medicinal adjuvant for use with a medicinal agent containing nitrogen atoms comprises a synthetic polymer having free hydroxyl and carboxyl sites and an emulsifier for the polymer admixed therewith, the polymer and the emulsifier, in combination, being capable of undergoing sustained release but substantially complete dissociation and absorption in the tissue of a host. The polymer is suitably a cross-linked polymer of acrylic acid, preferably cross-linked with a polysaccharide such as polyallyl sucrose. The adjuvant may also contain a compound containing amino groups which are reactable with any free hydroxyl and carboxyl sites which have not reacted with the nitrogen atoms of the medicinal agent. Suitable compounds containing amino groups include collagen, preferably reconstituted; basic amino acids; epinephrine or other catecholamines; peptides; synthetic amines or polyamines; antigens such as those consisting of proteins or mucopolysaccharides; natural non- antigenic proteins such as actomysin or peptide antibiotics. In examples, antigenic compositions prepared from Clostridium chauvoei septicum, Clostridium perfringens, Leptospira icterohemorrhagiae and canicola and Erysipelas as well as a bivalent encephalomyelitis vaccine, are referred to.
Patent GB-1243309-A (GB)
Title: Improvements in and relating to coin and token operated amusement apparatus
Inventor: STENSON BERNARD NEIL
IPC: G07F17/34
Filed: 1970-02-21
Abstract: 1,243,309. Amusement apparatus. B. N. STENSON & W. WELLS. 7 April, 1970 [21 Feb., 1970], No. 8414/70. Heading A6H. [Also in Division G4] In a coin-freed amusement machine two dice which can be seen to be moving freely are projected on to a rotatable table from which they are then removed and passed to a spot valve determining means which actuates payment control means when certain valves are obtained, and may also light up part of a display panel for certain non-winning values. In the embodiment shown the dice are held by an air-stream in the frusto-conical member 1, which is spaced from a glass sheet 2 and is connected by tube 3 into a tube 4 with discharge end 5. On operation an obstructing device 6, preferably a disc pivoted on shaft 7 and driven through 360‹ by an electric motor 8, is removed from the tube 4, the main air-flow is through this tube and the dice therefore fall into it and are then blown from the discharge end 5 onto a rotatable table (10) that also lies under glass sheet 2. The dice collector and spot value determining means are preferably those of Specification 1,243,310. (For Figures see next column)
Patent GB-268776-A (GB)
Title: Improvements in or relating to electric flat-irons
IPC: H05B1/02
Filed: 1927-03-28
Abstract: 268,776. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Vaughan, V. G.). March 31, 1926, [Convention date]. Plug couplings.-The terminal pins 25 of an electric iron are retained in position in the plate 13 by insulating material formed by an oxidizing process and occupying a greater bulk than its solid ingredients. The ends of the pins are forced into the resistance 21 and surrounded by an open helix or strip of metallic magnesium after which they are subjected to high temperature and high pressure steam as described in Specification 173,742, [Class 36, Electricity, Conducting &c.], the metallic magnesium being changed to magnesium oxide with 100 per cent increase in bulk so that the pins are firmly secured in the plate.
Patent GB-674728-A (GB)
Title: Improvements in or relating to the production of interpolymers and of moistureproof sheet wrapping material coated therewith
Inventor: BERRY WILLIAM
IPC: C08J7/052
Filed: 1949-03-29
Abstract: Aqueous dispersions of terpolymers are made by emulsifying a mixture of 80 per cent of vinylidene chloride, between 0.1 and 2.5 per cent of an acidic ethylenic compound and acrylonitrile in an aqueous medium containing a modifying compound of the formula <FORM:0674728/IV (a)/1> wherein R and R1 are hydrogen or a hydrocarbon radical, e.g. methyl isobutyl ketone, and, as dispersing agent, 3 to 6 per cent, based on the mixture of monomers, of a water-dispersible alkyl sulphate, containing 8 to 18 carbon atoms in the alkyl group, e.g. sodium lauryl sulphate, sodium cetyl sulphate, sodium octadecyl sulphate and "Teepol" (Registered Trade Mark) and subjecting to polymerizing temperatures, e.g. 40 DEG  C.  The acidic ethylenic compound may be citraconic or itaconic acid or anhydrides thereof, mesaconic acid, acrylic acid or a mixture of acid anhydrides comprising citraconic and itaconic anhydrides formed by distilling citric acid.  Catalysts, e.g. ammonium persulphate and activators, e.g. sodium metabisulphite, may be present.  The product may be isolated by coagulation, e.g. by addition of alkali metal or ammonium sulphate, evaporation or electrophoresis.  Films of regenerated cellulose, polyvinyl alcohol, cellulose esters or ethers, gelatin and casein may be coated with the terpolymer in aqueous dispersion or in solution in methyl ethyl ketone or a mixture thereof with toluene or tetrahydrofurane.  Specifications 633,645, 649,719 and 654,342, [Group VIII], are referred to.
Patent GB-687632-A (GB)
Title: Electronic frequency generator
IPC: H03B5/10
Filed: 1951-04-12
Abstract: 687,632. Automatic exchange equipment. AUTOMATIC ELECTRIC LABORATORIES, Inc. April 12,1951 [July 20, 1950], No. 8657/51. Class 40 (iv). [Also in Group XL (c)] The frequency of an oscillator is automatically changed to one of a plurality of frequencies and connected to a circuit individual to that frequency. A circuit for generating a succession of five ringing tones comprises a multivibrator T5 driving two push-pull amplifiers T3, T4 in parallel which are together connected in turn to the five appropriate output circuits by means of the contacts 121, 122, 123 &c. of relays 120, 130, 140, 150 and 160. Contacts 124a, 124b, 125a, 125b &c. of these relays simultaneously connect pairs of resistors 84 to 93 in the grid circuit of the multivibrator to appropriately change its operating frequency. The outputs are derived from successively higher voltage taps on the output transformer 51 in order to compensate for the increased losses at the higher frequencies in the lines connected to the output circuits. The relays 120-160 are operated by a pulsing circuit comprising valve T7 and relay 100. When current flows through this valve it operates the relay, contact 102 of which applies a negative voltage to charge a grid capacitor 82 and contact 101 disconnects the relay. The relay accordingly releases but does not again operate until the grid capacitor has discharged after a delay of about one second. When the relay is released a capacitor charges from the H.T. supply 11 and when the relay is operated it is connected by contact 103 to operate one of the relays 120-160. When the relay is operated and the circuit is in the condition shown the capacitor is connected through contacts 169, 159 ... 129 to relay 120 which accordingly operates. Contact 126 holds the relay operated and contact 129 changes over so that the next operation of relay 100 operates relay 130, contact 139 of which connects the next relay (140) in circuit, contact 136 breaking the holding circuit for relay 120. Relays 140, 150, 160 operate and release in turn in a similar manner and a contact 169 of relay 160 prepares the circuit for the first relay so that it is reoperated by the sixth pulse and the cycle is repeated. Separate H.T. supplies are provided for the output amplifier, the oscillator and the pulsing valve, but the supply of H.T. to the amplifier and oscillator is broken at 111 and 112 until relays 120-160 have each operated and contact 163 has operated a relay 110.
Patent GB-163863-A (GB)
Title: Improvements in or relating to pistons
IPC: F16J1/16
Filed: 1920-03-24
Abstract: 163,863. Ricardo, H. R. March 24, 1920. Pistons.-A piston head A is guided by slippers D, which are connected to the head by the gudgeon-pin C. The piston-head A is formed with parallel webs B carrying the gudgeon-pin bosses B<1> and the slippers D, which may be of unequal size, are connected by webs D', carrying bosses D<2> through which the gudgeon-pin also passes. Each end of the gudgeon-pin may be surrounded by a bush F common to a boss D<2> and a boss B<1>. The slippers may be of cast iron or of aluminium or aluminium alloy.
Patent GB-287718-A (GB)
Title: Improvements in two-dial electricity meters for the measurement and control of more than one circuit
IPC: G01R11/56
Filed: 1927-03-30
Abstract: 287,718. Wilkinson, G. March 30, 1927. Electricity, supplying by meter.-A two-circuit meter having a recording dial and switch for each circuit so arranged that one. circuit only can be connected to the supply at a time is so arranged that one circuit is normally connected continuously by gravity, the second circuit and its recording dial being substituted for the first by means, of a push-button &c. In the meter shown a lever d, pivoted at e, is weighted at f so that normally the lighting circuit l<3> is elosed by means of a mercury or other switch l<1> and the meter-driven wheel c engages the high-rate registering train a. On depression of a rod m, the lever d is tilted so as to break the lighting circuit l<3> and close a heating circuit h<4> by means of a switch h<1>, at the same time causing the wheel c to engage the low-rate registering train b. In the heating circuit, for example that of a heatstorage plant, is a solenoid h<3> surrounding a plunger i, by which the heating circuit is maintained closed until the circuit is interrupted by the operation of the thermostat or otherwise. whereupon the lever d returns to its normal position by gravity, breaking the heating circuit and closing the lighting circuit. The. lighting circuit may be restored at any time before the completion of the heat storage operation by the insertion of a coin or token o into a duct q, the impact of the coin against an inclined surface r carried by the lever d causing the lever to turn against the pull of the solenoid h<3>. The switches h<1>, l' may be single or double contact breaks, mercury contact-breakers in glass tubes, or metallic contacts of silver or platinum in shunt circuits, which serve to make or break the main circuits. According to the Provisional Specification, the magnetic change-over device described in Specification 247,705 may be employed.
Patent GB-940483-A (GB)
Title: Improvements in or relating to washing, separating or grading apparatus
IPC: B03B5/56
Filed: 1961-03-10
Abstract: 940,483. Washing and separating granular materials. G. P. BARKER. March 9, 1962 [March 10, 1961], No. 8895./61. Heading B2M. A trommel T has an underflow distribution arrangement with a plurality of outlets 18 and a plurality of sections A1, B1, C1 D1, A2 . . . &c. extending transversely of the trommel each outlet being fed from a respective set of sections which set are separated from each other in the longitudinal direction of the trommel. The trommel is rotatable about an axis X-X and is indined slightly downward from its inlet end. It has perforated screen zones 1 to 9 beneath each of which is disposed a respective group of distribution arrangement sections as in Fig. 1. The screen casing 13 has side walls 14 and end walls (Fig. 4 not shown). The sections A1, B1 &c. are formed as boxes with parallel side walls perpendicular to the axis X-X connected by sloping side walls as at 27 and 28 or 34 and 37 of Fig. 3. The boxes have separate spouts as at 24, 29, 31 and 37 into troughs TA to TD whose outlets (as at 18) open into transverse conduits CA to CD which connect at one end or the other or at both ends to jigs (not shown). Alternatively there may be six, eight or more boxes per trommel zone. In an alternative arrangement the underflow outlets are fed through a conduit 42 to respective slumps S and thence through a pump P and cyclone C to a jig or jigs. In this instance a gravity-fed by-pass 43 is provided against failure of the pump or the cyclone.
Patent GB-568680-A (GB)
Title: Improvements relating to roofs, walls or floors, particularly of vehicle bodies
IPC: E04C2/08
Filed: 1944-06-02
Abstract: 568,680. Roofs, floors, walls, &c. DAWTREY, C. R. June 2, 1944, No. 8903/43. [Class 20 (iv)] [Also in Group XXXII] Bars, for the construction of roofs, floors, or walls of the kind mainly built up of hollow bars with adjacent longitudinal edges shaped slidably to receive and be held together by a locking strip of the same length as the bars are shown in sectional plan (of a caravan side wall), each of the bars being built up of spaced plates 13, 13a with longitudinal edges having-inturned curved flanges 14 undercut at 15 where they are engaged by corresponding parts of a locking strip 17 with flanges 19 engaging the flanges 14 of adjacent plates 13, 13a ; tongues 18 of strips 17 space adjacent bars. A flanged ledge 22 on an inner plate may be used to support wooden panels 23. The plates may be formed by extrusion from aluminium alloy or a plastic.
Patent GB-417308-A (GB)
Title: A knife sharpening apparatus
IPC: B24B3/54
Filed: 1934-03-22
Abstract: 417,308. Sharpening knives. ROTACH, R., 4, Inselistrasse, Lucerne, Switzerland. March 22, 1934, No. 8963. Convention date, March 24, 1933. [Class 83 (iii).] Filing - machines, rotary.-Apparatus for sharpening knives consists of two discs 13, 14 mounted on a shaft 9 driven through gearing 5-8 by a handle 3, or by a motor, and carrying in recesses in their opposing faces two steel rings 20, one in each disc, having a circular or oval cross section and roughened surfaces. The pressure between the rings may be adjusted by bolts 18 and nuts 19.
Patent GB-418582-A (GB)
Title: Improvements in or relating to variable speed or torque converting gear specially applicable for motor vehicles
IPC: F16H47/08
Filed: 1933-03-25
Abstract: 418,582. Hydro-mechanical variable-speed gearing; differential gearing. HAMER, R., 151, Cotham Brow, Redland, Bristol, and HEPWORTH, H. C., 3, Brownsville Road, Heaton Moor, Near Stockport, Cheshire. March 25, 1933, Nos. 9029/33 and 12386/34. [Class 80 (ii).] Relates to variable-speed gear- 'ing in which planet pinions E, Fig. 1, mesh with a common driven sun gear C and are rigid through shafts 8 with paddle wheels F which rotate in resisting liquid in a driving casing B. The paddle wheels F rotate in recesses 19, Fig. 4, one for each wheel, which open inwards into a common chamber and are bounded by segmental shroudings 20 concentric with the wheels F and just clear of the peripheries of these wheels as shown in Fig. 2. At points P of nearest mutual approach of oppositely-moving paddles there is no shrouding. Oil there exerts a braking action on the paddles and is projected into the recesses 19 which become full of oil under pressure. The paddle or vane wheels F have side cheeks 21 connecting vanes which are alternately long and short, as shown at 22, 23. Aligned driving and driven shafts A, D, Fig. 1, are fast to the casing B and gear C respectively. A chamber B<1> enclosing the toothed gearing communicates with the recesses 19 by openings 24 leading to the centres of the paddle wheels F. An arrangement of external pipes G for cooling the oil is shown in Fig. 4. Each pipe G leads out of a recess 19 at 27, and, after carrying the oil once round outside the casing B concentrically, delivers the oil into the gear casing B<1>. The pipes G are provided with radiating fins 33 and are held in place by straps 34. An adaptation as a vehicle differential is shown in Fig. 5. The vane-wheels F<2> are connected alternately to planet pinions E<2> on opposite sides of the driving casing, and each set of planets drives its own sun gear C<2> on one of the ends of the divided axle D<2>.
Patent GB-1097435-A (GB)
Title: Improvements in or relating to laminated plastics materials
IPC: B32B27/00
Filed: 1965-03-03
Abstract: 1,097,435. Laminates. R. PIETROCOLA. March 3, 1965 [March 4, 1964], No. 9072/65. Heading B5N. A composite laminated plastics material comprises a plurality of superposed layers of a thermoplastic synthetic resin joined together only by the application of heat and pressure, all the layers consisting either of an impact resistant unoriented polystyrene, or a terpolymer of acrylonitrile, butadiene and styrene. The layers may have differing physical properties and may be in the form of sheets and ribbons. A preferred embodiment comprises a three-layer laminate, the upper layer having on its lower surface printing imitating wood grain, leather, cloth or bricks, the intermediate layer constituting a coloured background and the lower layer constituting a backing. The layers are bonded together by the application of heat and pressure.
Patent GB-837175-A (GB)
Title: Apparatus for treating bulk material with hot gases
IPC: F26B17/12
Filed: 1958-03-21
Abstract: 837,175. Heating pebbles and other granular materials. SIMON-CARVES Ltd. March 21, 1958 [Dec. 9, 1957], No. 9077/58. Class 64(2) [Also in Group XII] Pebbles to be heated by contact with hot gases pass down a shaft furnace comprising a long upright container 7 open at both ends and projecting through the upper wall of a lower container 2 to form a ring space 23, a downwardly tapering insert 3 in the lower container below the bottom of the upper container, a downwardly flared inlet or outlet pipe 5 for hot gas in the upper container and an outlet or inlet for hot gas from the ring space 23. The pipe 5 (which may be telescopic) and ring space 23 are connected through valves to the hot gas supply and to the discharge outlet, so that the direction of gas flow may be reversed. Cold gas, which may be the scrubbed waste gas from the process, is fed to the space around the insert 3 to cool material passing to a downward tapering discharge conduit 4.
Patent GB-986296-A (GB)
Title: Television camera apparatus
IPC: H04N5/228
Filed: 1963-03-07
Abstract: 986,296. Television; cathode-ray tube operating circuits; transistor detecter and amplifier Circuits. FERNSEH G.m.b.H. March 7, 1963 [March 7, 1962], No. 9104/63. Headings H3T, H4F and H4T. Television; cathode-ray tube operating circuits.-The invention relates to a television camera arrangement including an imageorthicon tube 1, Fig. 1, the beam of which is suppressed during a part of the scanning flyback period by means of pulse B, Fig. 2, so as to produce in the output signal F derived from the electron multiplier 6 a reference level during the interval t 1 -t 2  which may serve for D.C. restoration purposes in the video channel amplifiers 11 and 12. The operation of an image-orthicon is stated to result in only 50% modulation of the scanning beam which is returned to the electron multiplier with the result that the reference level produced as described above corresponds to about twice peak white. D.C. restoration effected with reference to this level does not therefore stabilize the black and white levels unless the beam current is also maintained substantially constant. According to the invention this is achieved by means of a stabilizing amplifier 13 which is connected to the output of amplifier 11 and produces a control potential by means of a peak rectifier 14, which is applied to the grid 4 of the tube gun via a D.C. amplifier 15. The tube target electrode 2 is driven negatively with respect to cathode 3 by a pulse C for a period exceeding pulse B so causing the whole of the beam current to be returned to the electron multiplier and producing during the interval t 2 -t 3  a signal level (see curve F, Fig. 2) determined by the maximum beam current (see curve G, Fig. 2). The output signal from amplifier 11 thus exhibits periodically repetitive levels representative of minimum and maximum beam currents to which peak rectifier 14 may respond. D.C. restoration is not effected directly on the reference level produced in the interval t 1 -t 2 ; a pulse D is added first during an interval t 1 -t 2  and brings the level down to either peak white or black. The D.C. restoration is effected by clamping circuits included with amplifiers 11, 12 and 13 and operated by pulse E. Transistor detector and amplifier circuits, Fig. 3.-Amplifier 13 comprises a conventional amplifier stage 26 with a clamp stage 29 driven by pulse E connected to the base and an emitter follower stage 33 connected directly to the collector. Peak rectifier 14 comprises diodes 36, 37 in combination with CR circuit 38, 39 and an output emitter follower 40. The resulting output potential is applied directly to the base of transistor 18 which comprises D.C. amplifier 15, the correct operating conditions being established by adjusting the base bias which is determined by a potentiometer 47 connected in a stabilized voltage divider chain including Zener diodes 45, 46.