baber/WOPTO huggingface dataset:
Patent GB-484880-A (GB)
Title: Improvements in tone generators
IPC: H04M19/02
Filed: 1937-10-26
Abstract: 484,880. Automatic exchange equipment. JONES, W., and JONES, H. H. Oct. 26, 1937, No. 29281. [Class 40 (iv)] Ringing and busy-tone interruptions, timed pulses, and similar signals used in an automatic exchange are produced by a single-motion selector mounted on and driven bv the shaft of a generator. The motor 1, Fig. 3, driven at 25 revolutions per sec. has a generating winding (G, Fig. 5) associated with slip rings 12 producing a ringing frequency of 25 cycles per sec. and laminated inductors 7, 8 producing in windings 13, 14, Fig. 5, frequencies of 150 and 400 cycles per sec. respectively. The motor shaft drives through reduction gearing 18, 25 a shaft 20 having a pin-andslot detachable coupling with the shaft of an eight-wiper single-motion switch (mc1 ... mc8, Fig. 5) which is thus driven so as to make one complete revolution in six seconds. Further gearing 27 causes a cam 29 to close time-pulse contacts 31 (TPC, Fig. 5) once in 36 seconds. The apparatus is started when ground from a connecting circuit is applied to lead MSL1, Fig. 5, to operate relay MG which locks over wiper mc3 to ensure that the switch will make at least one half-revolution. Wiper mc1 in conjunction with contacts TPC is employed to send S- and Z-timed release pulses over loads AP, ZL1 .. ZL8 at an interval of about 36 seconds. Wiper mc2 intermittently operates relay BT to send interrupted 400-cycle busy-tone over lead BT, lamp-flash interruptions over lead BF, a click effect over lead WT by the charging and discharging of condenser QRA to notify a subscriber when an operator plugs in, and a non-standard ringing current over lead EG. Wiper mc4 operates relays IRA, IRB each twice in succession to apply standard ringing current alternately to leads RG1, RG2. Wiper mc5 applies flicker-earth to leads AF, FE. Wiper mc6 applies earth in succession to leads TP1 .. TP10 to prevent the simultaneous seizure by more than one selector of a line on which several selectors have been camped. Continuous ringing current is applied to lead CRG and dialling tone comprising a harmonic of the ringing frequency is supplied via lead DT. Ringing tone may be derived from winding 13 via transformer T2.
Patent GB-476521-A (GB)
Title: Improvements in or relating to apparatus for unwinding coils of material, such as strip steel
IPC: B21C47/34
Filed: 1936-10-28
Abstract: 476,521. Unwinding coiled strip. STEVENS, A. H. (United Engineering & Foundry Co.) Oct. 28, 1936, No. 29292. [Class 83 (iv)] A coil of metal strip is uncoiled and straightened by rolls 62, 63, 64, the operation being started by gripping the coil between axially adjustable end spindle plates, lowering the bottom rolls 63, 64 out of the way to allow an electromagnet 48 &c. to move down to the coil and pull the coil end back with it against the upper roll 62 when the lower rolls 63, 64 are raised to nip the strip against the top roll 62 which is then driven to uncoil and straighten the strip. The roll 62 is adjustably spring- pressed to vary the straightening effect. The coil is first tipped on to a platform 19 where it comes to rest between rollers 25, 26. The platform 19 is then elevated about its pivot 21 by a screw 36 until the end plates 1, 2 can be moved in by motor-driven right- and left-hand screws 9 to engage it. The coil is rotated by drive sprockets 27 until its end comes round into position to be engaged by the magnet 48 when lowered to dotted position. The end plates have teeth 20 to bite into the innermost convolutions of the coil to hold it while the adjustable brake 90 acts. The crank 77 then lowers the plates 74 and the rolls 63, 64 thereon about its pivot 75, thus leaving a clear passage for lowering the electromagnet 48 to the coil, this being done by motor driving the segment 55 so as to lower the magnet holding arms 49. The magnet is raised again drawing the end of the coil with it until the coil comes against the roll 62 when it is demagnetized and the rolls 63, 64 are pivoted up to form a straightening pass. Non-circular end guards 3 are provided on the outer ends of the hubs 4 to keep the coil end flat or make it flat, and by gravity they tend to make the spindle swing round to a definite position so that the magnet will normally contact with the coil end without fouling the guards 3. The various operating motors may be automatically controlled to operate when required.
Patent GB-1480616-A (GB)
Title: Optical glass fibres
IPC: G02B6/32
Filed: 1976-07-15
Abstract: 1480616 Matching optic fibres SIEMENS AG 15 July 1976 [6 Aug 1975] 29439/76 Heading G2J  A lens is formed at the end of an optical fibre by dipping it into a suitable material, e.g. epoxy resin, in a viscous state, withdrawing and hardening the adhering droplet, if desired after first changing its shape by a mould.
Patent GB-391226-A (GB)
Title: Improvements in or relating to hand operated presses
IPC: B65B13/30
Filed: 1931-10-23
Abstract: 391,226. Making bale-tie fasteners. SPOONER, H., 1A, Chacon Street, Port of Spain, Trinidad, British West Indies. Oct. 23, 1931, No. 29506. [Classes 83 (ii) and 83 (iv).] A hand-operated machine for flattening wire near the end enabling it to be more easily gripped by pliers &c. for binding merchandise comprises an anvil 5 secured by bolts 16 between side-plates 8 upstanding from bedplates 13 bolted to a table 15 and a flattening member 6 carried by a pivoted arm 2 operated by a link 3 and pivoted handle 1. The end of the wire is passed through a hole 9 in one plate 8 and abuts against a gauging stop in the form of an adjustable screw mounted in the opposite plate.
Patent GB-954975-A (GB)
Title: Improvements in or relating to the manufacture of flat glass
IPC: C03B18/06
Filed: 1959-08-28
Abstract: In a process in which a ribbon of glass is in contact with a molten bath chemically inert to the glass, steering forces to guide the ribbon as required are generated in the bath so as to act at the surface of the bath as, for example, by providing heating to produce local convection currents using the apparatus described in Specification 954,974. Specification 769,692 also is referred to.
Patent GB-1101657-A (GB)
Title: Dimerisation process
Inventor: HAMBLING JAMES KEITH
IPC: C08F4/70
Filed: 1965-07-13
Abstract: A product consisting predominantly of branched chain dimers having internal unsaturation and also containing linear dimers is obtained by dimerization of an alpha-olefin feed consisting of one or more alpha-olefins containing three or more carbon atoms per molecule in the presence of a catalyst comprising the reaction product of a reducible salt of a Group VIII metal (Mendeleef table) and a reducing agent comprising a Grignard reagent, a metal alkyl or another organo-metallic compound, the molar ratio of reducible salt to reducing agent being in the range 2:1 to 1:10, at - 40 to +200 DEG C. under a pressure such that the reactants are maintained in the liquid or partially condensed phase, i.e. preferably 200-2000 p.s.i.g.  The catalyst may comprise cobalt or nickel chloride and aluminium diethyl monochloride or aluminium triethyl.  Specified feedstocks are propylene or butene-1.  A saturated hydrocarbon or halogenated hydrocarbon diluent may be present.  In the Example, propylene in diluent heptane dimerized to a product containing 49.5% 4-methylpentene-2, 12.5% 2-methyl pentene-2 and 21.0% hexene-2.
Patent GB-1269636-A (GB)
Title: Manufacture of solid materials in a moving bed reactor
Inventor: BLACK JOHN WRIGHT COULTER
IPC: C01B25/40
Filed: 1968-06-21
Abstract: 1,269,636. Cooling exothermic processes to avoid decomposition. CANADIAN INDUSTRIES Ltd. 20 June, 1969 [21 June, 1968], No. 29690/68. Heading B1X. [Also in Division C1] An exothermic process for the manufacture of solid free flowing material which involves cooling of the product to prevent decomposition comprises (a) providing a bed of solid particles of the material and/or inert substance wherein part of the bed forms a reaction zone and another part of the bed separate therefrom forms a cooling zone, (b) maintaining a circulation of particles between the reaction zone and the cooling zone by passage of gas through the bed, (c) maintaining the temperature of the particles in the reaction zone of the bed within the temperature range at which the reaction forming the material takes place and (d) feeding the reactants to the reaction zone from at least two separate reactant inlets so that mixing of the reactants occurs in the reaction zone distort from the cooling zone, of which one of the inlets may be an inlet for the said gas. The maintainance of the desired reaction temperature and the cooling may be effected by a heat exchanger (5) or by evaporative cooling of a liquid introduced into the reaction zone as a solvent or a reactant. The particles in the bed may comprise sand, and may be fluidised or spouted or slowly moving. The production of ammonium metabisulphite from ammonia, sulphur trioxide and water vapour is described. Also of ammonium nitrate from ammonia and aqueous nitric acid and mono- and di-ammonium phosphate from ammonia and phosphoric acid.
Patent GB-318777-A (GB)
Title: A combination knife and vegetable peeler
IPC: A47J17/02
Filed: 1928-10-15
Abstract: 318,777. Brown, H. N., and Brown, A. R. Oct. 15, 1928. Peeling vegetables.-A combined knife and vegetable peeler comprises a strip of metal united to or formed with a handle 10, the strip being wider at the end connected to the handle than at its free end, the said wider part containing a paring device and the narrower part forming a knife. The paring device is formed by making a longitudinal slot, sharpening one edge 11 and bending up the metal 12 to form a guard and guide. The free end 13 is sharpened at 15 and is pointed to facilitate the removal of eyes. The handle 10 may be of oval section so that the cutters will automatically tend to lie in the correct position for use. In a modification for use by either right or left-handed persons, two peeling slots are formed and the metal 12 on each side of the device is bent up to form guides. The part 13 may also be sharpened on both sides.
Patent GB-243739-A (GB)
Title: Manufacture of sulphur dyestuffs
IPC: C09B49/10
Filed: 1925-11-25
Abstract: The process of the parent Specification, according to which the indophenol from carbazole and p-nitrosophenol is sulphurized in the presence of benzidine, is modified by substituting for the benzidine a derivative thereof, or another homocyclic organic base or a derivative thereof; compounds specified are aniline, toluidines, chloranilines, phenylenediamines, naphthylamines, nitranilines, acetanilide, acetyl-o-toluidine, acetyl-p-phenylenediamine, and diacetylbenzidine.  The sulphurizing may be effected in presence of a flux such as phenol or naphthol, or of a diluent such as common salt. According to an example the indophenol is stirred with sodium sulphide until reduced, dried, and heated at 170-180 DEG  C. with aniline, sulphur, and salt: the product dyes cotton in blue shades; the use of the above-mentioned acetyl compounds leads to the production of more reddish products.  Specifications 210,006 and 234,681 are referred to.  The Specification as open to inspection under Sect. 91 (3) (a) includes the use of organic bases in general, or of the parent materials of such bases, e.g. nitro-compounds.  This subject-matter does not appear in the Specification as accepted.
Patent GB-339707-A (GB)
Title: Improvements in railway carriage window straps and the manufacture thereof
IPC: B61D25/00
Filed: 1929-10-02
Abstract: 339,707. Dunlop Rubber Co., Ltd., Warren, F. W., Reid, J., and Dexter, W. J. Oct. 2, 1929. Window straps and strap fittings.- A strap, of the kind consisting of moulded rubber with which is incorporated reinforcement, is adapted for application to railway carriage windows and the like. The strap is moulded complete with the usual adjustment holes, a tubular end for attachment to the window, and a stop at the reverse end. As shown in vertical section, a rubber strap is reinforced by fabric 1 and has a tubular end 5 for attachment to a window and a stop 6 at the other end. Holes 3 and the end 5 are reinforced by extra layers of fabric 2, 4, respectively. The reinforcements may be applied to the rubber as an insertion and prior to the moulding. A pattern may be moulded on the strap to discourage pilfering. Specification 245,927, [Class 109, Ropes &c.], is referred to.
Patent GB-437994-A (GB)
Title: Improvements in processes for the carburization of pig iron
IPC: C21C1/00
Filed: 1934-10-18
Abstract: A carburizing agent for the rapid carburization of pig iron or a mixture of pig iron and iron or pig iron scrap comprises blocks or bricks produced from a mixture of a substantially incombustible carbonaceous material in a finely divided form and a suitable agglomerant, the blocks or bricks traversing the part of the furnace above the blast tuy<\>aeres in compact form and dissolving under this zone to produce a layer through which the molten pig iron filters. The carbonaceous material may be mixed with other elements such as manganese or silicon before agglomerating, and if combustible carbonaceous material such as powdered charcoal or sawdust is used it is treated with an alkali metal silicate or soda before use.  In an example, pulverized graphite is mixed with a viscous organic adhesive such as molasses and compressed into bricks 1 cubic decimetre in size.  Other adhesives such as glue tar or starch paste may be used instead of the molasses.  The Specification as open to inspection under Sect. 91 states that the pig iron &c. may be carburized by treating the molten iron in a ladle with the carburizing agents referred to above and also that petroleum coke may be used as a carburizing agent.  This subject-matter does not appear in the Specification as accepted.
Patent GB-520202-A (GB)
Title: Improvements in and relating to tacking means
IPC: A43D69/10
Filed: 1938-10-15
Abstract: 520,202. Nailing. BATA AKCIOVA SPOLECNOST. Oct. 15, 1938, No. 29880 Convention date, Oct. 16, 1937. [Class 89 (iii)] In a nailing mechanism, particularly for heel seat lasting machines, the nozzle 2 is secured removably to the support 1 by means of undercut keys 8 engaging keyways in the support. The keyways extend from a recess 7.in which a projection 13 on the nozzle engages. The nozzle is locked in position by a projection 9 engaged by a spring-pressed latch 10 pivoted on the support and which acts on the nozzle to stop sliding movement in the recoil direction.
Patent GB-799487-A (GB)
Title: Fluid operated devices for gripping articles
IPC: B66C1/46
Filed: 1956-10-01
Abstract: 799,487. Inflatable devices for gripping articles. HOLLANDER, L. P., and SCHROTH. R. A. Oct. 1, 1956, No. 29887/56. Class 78 (4), An endless, or substantially endless, tube 12 (Fig. 2) mounted in a substantially endless channel member 11 can be inflated to grip an article to be lifted. In the device illustrated for lifting green grindstones, a closed frame 11 of channel section is supported by lugs 17 (Fig. 1) from the legs 31 of a sling. A pressure regulator 37 supplying pressure fluid through a flexible conduit 16 to the tube 12 is carried by telescoping arms 34, 35 which are apertured to receive the legs 31 of the sling and which rest on buttons 33 on the legs. The conduit 16 is connected to the tube 12 through a coupling 15 (Fig. 2) such that the outlet from the tube 12 is automatically closed when the coupling is broken so that the article lifted cannot be inadvertently released by operating the release valve 41 (Fig. 1) of the pressure regulator. A similar coupling 42 connects the pressure regulator to a pressure line 43. The tube 12 has a flared skirt 23 ending in a reinforcing bead 25 to facilitate engagement with the grindstone to be lifted.
Patent GB-414367-A (GB)
Title: Improvements relating to the manufacture of fuel briquettes from carbonaceous material
IPC: C10L5/04
Filed: 1932-10-26
Abstract: 414,367. Agglomerating fuel. ROBERTS, A. A., Imperial House, Kingsway, London. Oct. 26, 1932, No. 29982. [Class 50.] In briquetting powdered coal liable to swell when burnt, the proportion of volatile carbon in the overall amount of powdered coal briquetted is reduced and boric acid not exceeding 1 per cent by weight is added. The reduction in volatile content may be effected by heat and passage therethrough of combustion products or by the addition of coal from which volatile material has already been driven off. The moulding pressure may be in excess of that necessary to maintain coherence and the coal reduced to very small particles. In an example 80 per cent of Kent coal is mixed with 20 per cent of ocean coal or coke, and in addition to a cement binder, with À5 per cent each of boric acid and sodium chloride, the mixture being moulded at 6000 lb. per sq. in. in order completely to obviate swelling. The Provisional Specification describes the utilization of carbonaceous material such as coal, coke, sawdust, tan bark, peat, lignite, anthracite and carbonaceous residuums. Specifications 402,107, 402,139, 414,361, and 414,368 are referred to.
Patent GB-605345-A (GB)
Title: Improvements in or relating to hand trucks or trollies
IPC: B62B1/10
Filed: 1945-11-10
Abstract: 605,345. Hand trucks. WARD, Ltd., H., and WARD, G. S. H. Nov. 10, 1945, No. 30091. [Class 108 (i)] A hand truck comprises two tubular side members 1, 2 with three transverse tubular members 3, 4, 5 welded to the undersides of the members 1, 2. The web increases in depth towards the member 4 and remains at this depth to the end adjacent to the wheels. A sheet-metal platform 8, 9, an fish-plates 10, are welded to the webs 7, the fish-plates supporting the axle 11. Wings 13 are provided to protect the load from contact with the wheels.
Patent GB-862412-A (GB)
Title: Improvements relating to microtomes
IPC: G01N1/06
Filed: 1959-09-03
Abstract: 862,412. Microtomes. L.K.B.-PRODUKTERFABRIKSAKTIEBOLAG. Sept. 3, 1959 [Sept. 10, 1958], No. 30111/59. Class 97(1) In a microtome the specimen block is attached to the end of a bar which is oscillated up and down (the cutting operation taking place on the downward movement), the knife edge and the specimen bar being attached to a common base which is elastically deformed on the upward movement of said bar so as to move the knife edge out of the path of the bar. As shown a specimen 14 is held in a holder 15 which is fixed to an arcuate bar (centre of curvature at 14) which is slidable in a groove in a bar 26 rotatable about a pin 27 which in turn is hingedly connected to a bar 11. The bar 11 is heated by a bifilar element 18 to feed the specimen and may be cooled by passing air through a tube 23 channels 19, 20 and the space between the rod and an insulating jacket 21. The bar is made to oscillate by means of an electromagnetic driving device 12 and a lifting cord 42. The glass knife 31 is fixed to a holder by a screw 32 the holder being arranged so as to be slidable in an arcuate groove, the centre of which is on the knife edge, slidable in a path parallel to the axis of the rod 11 and rotatable about a horizontal axis which is perpendicular to the axis of the rod and is mounted on a slide 66 movable on one end of a base 10, the rod 11 being attached to the other end by a leaf spring 17. The base 10 is made of a magnetically susceptable material so that the end 10a (and therefore the knife 31) can be moved downwards intermittently by electromagnets 58. These electromagnets and the device 12 are controlled electronically (a circuit is given). The knife itself may be fed by means of a spring 62 (the tension of which is controlled by a hand operated screw 63)' which exerts a linear force on one arm of a lever 61 which is attached at 60 to the plate 10a so that an upward arcuate movement of the knife is obtained.
Patent GB-1186737-A (GB)
Title: Xerographic Production of Printing Masters
IPC: G03G13/32
Filed: 1967-06-30
Abstract: 1,186,737. Electrophotographic element. RANK XEROX Ltd. 30 June, 1967 [1 July 1966], No. 30210/67. Heading H1K. [Also in Divisions C1 and G2] A printing master comprises a support substrate coated with a layer comprising a photoconductive material dispersed or dissolved in a glass insulating binder, which layer, after forming an electrostatic latent image thereon and developing said image, is etched to form the desired pattern. In a preferred method of forming the plate, the photo-conductive material is mixed with the glass dispersed in water or ethylene glycol, using a ball mill, optionally with sodium silicate, sodium hydroxide or boric acid as dispersing agents. The slurry is then dried and blended with isopropyl alcohol, the blend being applied to one or both sides of the support by flow coating, dipping or spraying and fired at 300-1500‹ F. The support may be aluminium, brass, steel (stainless or low carbon), copper, nickel, zinc, and alloys and mixtures thereof. The photo-conductive material is preferably a phthalocyanine pigment, zinc oxide, zinc sulphide, zinc cadmium sulphide, cadmium selenide, cadmium sulfoselenide, zinc cadmium selenide, zinc sulfo-selenide or mixtures thereof, but many other inorganic photo-conductors are specified. The glass preferably comprises SiO 2 , B 2 O 3 , PbO, CdO, TiO 2  and Na 2 O, but may also contain Al 2 O 3 , K 2 O, CaO, CdO, ZnO 2 , Sb 2 O 3  or As 2 O 3 .
Patent GB-960214-A (GB)
Title: Improvements in or relating to loudspeakers
Inventor: LOVETT ROBERT RALPH ALBERT
IPC: H04R9/02
Filed: 1959-09-04
Abstract: 960,214. Producing metal articles &c. PLESSEY CO. Ltd. Dec. 2, 1960 [Sept. 4, 1959], No. 30214/59. Heading B3A. [Also in Division H4] The magnet system of a loud-speaker is assembled by securing a dished member 7, Fig. 1, to a plate 2 by components 5, using a circular plate aperture 4 as a guide to pierce an aligned aperture in the dished member, pushfitting a shouldered polepiece 10 in the pierced aperture to form an annular air gap in the plate, and finally applying pressure between the polepiece and plate so as to deform the dished member to secure the polepiece as shown' in Fig. 2 and to bring the faces 13, 14 of the polepiece and plate into alignment. The deforming stage of assembly is carried out within a yoke body 16 in which the plate 2 is a force fit, a permanent magnet 19 being first introduced so as to lie between the shouldered face of the polepiece and the yoke body base 18. The deforming operation is effected by a press tool 21, the movement of the tool being limited by a shoulder 23 which engages the top of the yoke body when the correct degree of deformation of the dished member and alignment of the faces 13 and 14 is obtained.
Patent GB-505413-A (GB)
Title: Improvements in or relating to neck-ties
IPC: A41D25/00
Filed: 1938-10-20
Abstract: 505,413. Neckties. SPIELMANN, E. Oct. 20, 1938, No. 30343. Convention date, Oct. 20, 1937. [Class 141] An elastic thread 2 e.g. of rubber is used for sewing together the longitudinal edges 1 of the folded-back portions of a necktie.
Patent GB-1338529-A (GB)
Title: Quasi-complementary circuit
IPC: H03F3/30
Filed: 1972-06-29
Abstract: 1338529 Integrated circuits HITACHI Ltd 29 June 1972 [9 July 1971] 30443/72 Heading H1K [Also in Division H3] An amplifier (see Division H3) uses an integrated circuit comprising lateral type p.n.p. transistors T6 and T7 and a vertical n.p.n. transistor T8 formed simultaneously. The base and collector electrodes of transistor T7 are connected.