baber/WOPTO huggingface dataset:
Patent GB-538098-A (GB)
Title: Improvements relating to the moulding of concrete posts, columns and the like
IPC: B28B7/00
Filed: 1940-01-18
Abstract: 538,098. Moulds. SMITH, W. H. Jan. 18, 1940, No. 1132. [Class 87 (ii)] In a mould, for moulding concrete posts and the like, made of springy sheet material and formed with a longitudinal opening extending the length of the mould, the face edges of the sheet material are formed with undercut ledges which are engaged by a clamping device to reduce the width of the open portion during the moulding and on removal to allow the mould to open slightly to permit easy removal of the moulded article. Octagonal moulds arranged side by side are provided with their free edges B bent back to form ledges on which is mounted a yoke E having downturned ends F, G, the end F engaging ledge B while a lever H, pivoted on the end G and provided with an end roller L, engages the opposite outer ledge B and compresses the open sides together. The mould may be provided with adjustable ends C which may form part of the moulded post and may be provided with central apertures for supporting cores.
Patent GB-428955-A (GB)
Title: Method of desulphurising artificial filaments of viscose
IPC: F01B25/00
Filed: 1934-01-12
Abstract: Artificial filaments and particularly artificial silk are desulphurized by treatment in a bath with a substance selected from the group: salts of sulphuric acid esters of high molecular weight alcohols; the fatty acid esters of low aliphatic oxy-sulphonic acid salts, and the fatty acid amides of low aliphatic amidosulphonic acid salts.  Treatment with either of the above types of compounds effects a scrooping action simultaneously with the desulphurizing action, so that subsequent scrooping is unnecessary.  The compounds are used in baths of a 1,5 per cent to 2 per cent concentration at 80--90 DEG  C. for 1--2 hours. Examples of the above classes of compounds are: (1) the sodium salt of the sulphuric acid ester of octadecanol.  (2) The oleic acid ester of the sodium salt of oxyethyl sulphonic acid.  (3) The oleic acid amide of the sodium salt of amino ethyl sulphonic acid.
Patent GB-701746-A (GB)
Title: Improvements relating to toe raising splints
Inventor: TERRY CHARLES
IPC: A61F5/01
Filed: 1951-01-17
Abstract: 701,746. Surgical supports. TERRY & SONS, Ltd., H. Jan. 14, 1952 [Jan. 17, 1951], No. 1251/51. Class 81(2) A dropped foot appliance, for raising the wearer's toe, comprises a calfengaging member 10, pivotally connected to the instep of the shoe by means incorporating a torsion spring which urges the toe upwards. A block 3, secured to the shoe by a screw 4, carries pins 5 which form pivots for a spring having side arms 8 extending to the member 10 and a central loop 7 pressing upwards on the shoe sole.
Patent GB-1533092-A (GB)
Title: Electronic tube
IPC: H01J9/14
Filed: 1977-01-13
Abstract: 1533092 Discharge tubes PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 13 Jan 1977 [16 Jan 1976] 01305/77 Heading H1D Two electrodes 30 and 31 in a discharge tube are secured together at a defined distance apart, but insulated from one another, by at least one member of electrically insulating material which is in the form of a core 34 which determines the distance between the electrodes and a jacket 35 which directly adheres to the electrode material, the core material having a higher melting point than the jacket material. The core may be of glass or ceramic and the jacket of a different glass, the members being either cylindrical or spherical. The method is described with particular reference to the fabrication of a post-focusing combination of a shadow mask and focusing lenses for a colour television tube.
Patent GB-1462032-A (GB)
Title: Textile dyeing process
IPC: D06P3/52
Filed: 1973-01-10
Abstract: 1462032 Dyeing polyamides and polyesters ALBRIGHT & WILSON Ltd 9 Jan 1974 [10 Jan 1973] 1346/73 Heading D1B Cationic dyes are applied to basic dyeable polyamides and polyesters in the presence of a compound of formula  in which R is an optionally substituted phenyl group, or an optionally substituted C 3  to C 30  alkyl group or an optionally substituted cycloaliphatic group n and m may be thesame or different and n is 0 to 3 and m is from 1 to 3. The preferred compounds are benzyloxypropionitrile and cyclohexyloxypropionitrile which are used in conjunction with an emulsifying agent, preferably at 80‹ to 110‹C.
Patent GB-1043562-A (GB)
Title: System for supressing the appearance of transient responses or spikes in transistorized choppers
IPC: H03K17/16
Filed: 1964-01-13
Abstract: 1,043,562. Transistor circuits. NIHON GENSHIRYOKU KENKYU SHO. Jan. 13, 1964 [Jan. 22, 1963], No. 1395/64. Heading H3T. In a transistor chopper for a chopper-modulatortype amplifier, transient responses in the output waveform due to interelectrode capacitance and/ or resistance in the transistor are reduced by applying the chopping waveform inverted with respect to that applied to the chopping transistor to the output terminal through a resistance-capacitance a like network equivalent to the inter-electrode capacitance and/or resistance referred to above. In Fig. 3 the input signal is applied to terminal 31 and the chopped waveform is taken from terminal 34. The chopping waveform is applied to terminal 32 and an inverted signal is applied to terminal 33, firstly to develop a voltage across the resistor in series with the transistor balancing out the residual voltage across the transistor when conducting and secondly to compensate for transients appearing in the output due to the switching waveform being coupled thereto through the base-emitter capacitance of the transistor, this latter compensation being achieved by a voltage fed through resistor 36 and capacitor 35. In Fig. 4 the transientcompensating waveform is effectively added to the output by being applied to the transistor together with the residual.voltage-balancing waveform. In Fig. 5 the impedances presented by a second transistor 45 are used to compensate for the transients appearing at the output of the chopping transistor. By this means timedelay effects due to minority-carrier storage may be compensated for. Voltage sensitivity of the inter-electrode resistance and capacitance of the chopping transistor are similarly compensated for.
Patent GB-166875-A (GB)
IPC: C02F1/20
Filed: 1921-01-10
Abstract: 166,875. Kestner, P. July 22, 1920, [Convention date]. Addition to 164,711. Purifying liquids.-The process described in the parent Specification for removing oxygen from water by means of iron, followed by a period of rest during which the higher hydrate first formed is reduced to Fe(OH)2 by means of part of the iron which has not previously been acted upon, is modified by reversing the direction of flow of water through the apparatus instead of giving a rest period. The Specification as open to inspection under Sect. 91 (3) (a) states also that in cases where the flow is variable, and reversal of flow is inconvenient, a number of elements proportional to the flow is kept in operation and elements are left out in orderly succession, to give the rest period for reduction, by changing the starting- point in the circuit each day. This subject-matter does not appear in the Specification as accepted.
Patent GB-140735-A (GB)
Title: An improved construction of combined gas producer and furnace
IPC: F23D99/00
Filed: 1920-01-16
Abstract: 140,735. Grocott, F. J. Jan. 16, 1920. Reverberatory furnaces; crowns and roofs.-In a combined gas-producer and furnace, the fore part of the working chamber is arranged over the arch of the producer and descends from this end to the hearth portion of the chamber, wherein a definite baffle ledge d<5> and contracting passages c<2> are provided to restrict the flow of the combustion products to the chimney. The arch of the producer is provided with two sets of passages e and f for the admission of gas to the combustion chamber, the former passages being directed vertically and the latter passages obliquely into the fore part d<2> of the combustion chamber d. At each side of the producer arch are arranged transverse air passages g, open to the atmosphere on one side of the furnace and supplying air to outlets g<3>. A shallow sinking is provided in the hearth below the baffle ledge.
Patent GB-283958-A (GB)
Title: Improvements in or relating to method of and means for using spirit or a like combustible as a fuel for internal combustion engines
IPC: F02M1/00
Filed: 1928-01-17
Abstract: 283,958. Kund, E. Jan. 22, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Spray carburettors. - Engines of high compression ratio are supplied at low load with benzine or other fuel capable of undergoing only low compression, and at high load with spirit or other fuel capable of withstanding high compression without detonation whilst at intermediate loads a mixture of the fuels may be supplied. The pipe a, Fig. 1, leads from a benzine carburettor and has a throttle valve a<1> actuated through an arm f by hand or governor. A pipe b leads from a spirit carburettor and has a throttle valve b<1>, the arm b<2> of which is connected by a link d to an arm a<2> on the throttle a<1>. The linkages are so arranged that as the benzine throttle is opened the spirit throttle is at first not opened at all, but is subsequently opened during continued opening of the benzine throttle. As the spirit throttle is completely opened, the benzine throttle commences to close but, to ensure complete cutting off of the benzine supply, a separate automatic spring-loaded valve h may be provided which closes when reduced suction occurs in the passage c. In a modification, Fig. 2, the benzine throttle a<1> is actuated as before, but the spirit throttle b<1> is actuated by a piston i subjected, through a pipe j, to the suction in the passage c. The piston is loaded by a spring g and acts upon an arm b<2>. In a further modification, the valve b<1>, is pivoted eccentrically and its arm is loaded directly by a spring. In a still further modification the passages a, b are provided at their outlet ends with suction-actuated flap valves. The passage a is of larger area than the passage b and its valve is opened first, but subsequently closes at reduced suction when the valve of passage b is opened. Instead of employing two separate carburettors, the fuels may be supplied to the main and slow running nozzles respectively of a single carburettor.
Patent GB-128515-A (GB)
Title: Improvements in Automatic or Semi-automatic Firearms.
Inventor: GABBETT-FAIRFAX HUGH WILLIAM
IPC: F41A5/32
Filed: 1919-01-22
Abstract: 128,515. Fairfax, H. W. Gabbett-. Jan. 22, 1919. Addition to 128,354. Machine guns. - Relates to gas-operated guns having an intermediate air piston and cylinder for operating the breech as described in the parent Specification, and consists in operating the air piston by a rotating or forwardly sliding cap on the muzzle. In the construction shown in Fig. 1, the air piston G is operated by the forwardly sliding cap C through links D, F and a lever E. In a modification, the air piston acts in a forward direction. In the construction shown in Fig. 4, a cap Q is rotated by the gases from the muzzle and actuates a cam T through worm gearing. The cam acts on a block O<1> at the end of the pistonrod and actuates the air piston G.
Patent GB-1020437-A (GB)
Title: Improvements in or relating to decorative bows and the manufacture thereof
Inventor: CRAWLEY LESLIE REGINALD GEORGE
IPC: D04D7/10
Filed: 1964-01-14
Abstract: 1,020,437. Trimmings. P. P. PAYNE & SONS Ltd. Jan. 8, 1965 [Jan. 14, 1964], No. 1683/64. Heading B6G. A decorative bow is formed of a flexible strip of weftless material, such as rayon yarn threads bonded together by adhesive in side-by-side relationship. The adhesive may be polyvinyl alcohol, and is moisture-sensitive. The strip is folded into a band 2 by attaching together portions 5 under pressure while moist, leaving free ends 3, 4 provided with inclined or dovetail cuts, to constitute streamers. The portion 5 is then joined to the opposite part 6 to form bows 7, 8, Fig. 3. The bow may be fastened by a wire stitch or staple 11 to a strip 10 of stout paper or card, whose rear face is coated with pressure-sensitive adhesive by which it can be secured to an article after removing a protective covering. A further loop 9, Fig. 4, of the same material as the band may be fastened to the overlapped parts 5, and conceals the staple 11.
Patent GB-627740-A (GB)
Title: Improvements in steering mechanism for a three wheeled vehicle
IPC: B62D7/02
Filed: 1947-01-18
Abstract: 627,740. Vehicle steering mechanism. AVELING-BARFORD, Ltd.. and KNOTT, L. H. Jan. 18, 1947, No. 1689. [Class 79 (v)i] A steering mechanism for a mechanically propelled three-wheeled vehicle adapted to be controlled by a pedestrian comprises a leading or trailing undriven wheel 1 mounted within the forked end 2 of a vertical shaft 3, which is mounted within a sleeve 4 rigidly secured to the framework 5 of the vehicle and has a bevel wheel 6 meshing with a pinion 7 on a horizontal shaft 8 carrying a vertical steering wheel 9, the shaft 8 extending axially parallel with the longitudinal axis of the vehicle and beyond the wheel 1.
Patent GB-758383-A (GB)
Title: Improvements in or relating to couplings for coupling two shafts which may be out of co-linearity
Inventor: NIGHTINGALE ROBERT ALLEN
IPC: F16D3/04
Filed: 1954-01-20
Abstract: 758,383. Universal joints. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Dec. 13, 1954 [Jan. 20, 1954], No. 1710/54. Class 80(2) A coupling of the Oldham type comprises a driving member 1 having dogs 4 received in between rollers 13, 14 on each side of diametrically opposed radial slots 9 in a "floating" ring 5 provided with further slots 9 and rollers 13, 14 receiving dogs 10a on a driven member 10. The arrangement is such that movement of the dogs 4, 10a along the slots 9 is accompanied only by rolling friction. The rollers 13 rotate on pins fixed in the ring 5 and the rollers 14 rotate on pins movable in slots in the ring, springs 15 biasing each pair of rollers 14 apart and into engagement with the dogs 4, 10a to take up backlash and wear in the coupling. The ring member 5, which consists of two plates 7, 8, is held loosely on the driving member 3 by screws 11 so that the driven member 10 can be withdrawn axially therefrom.
Patent GB-791175-A (GB)
Title: Improvements in and relating to reinforced light metal pistons
IPC: F16J9/22
Filed: 1956-01-18
Abstract: 791,175. Pistons. CHENEY, W. C., and WHITFIELD, M. G. Jan. 18, 1956 [Jan. 26, 1955], No. 1741/56. Class 122 (1). [Also in Group XXII] A sinuous heavy metal strand re-inforcement for a light metal piston, is maintained in position in the mould during casting of the light metal by the engagement of portions of the convolutions of the re-inforcement with the walls of the mould. The re-inforcements 1, 1a are helically wound and engage shallow grooves 5, 5a in the mould wall 3. After casting the light metal 13, piston ring grooves 9, 9a are machined so that the re-inforcing elements are severed into separate pieces of C-shape, with end portions 10, 11 exposed at the edges of the ring grooves. Other forms of sinuous re-inforcing elements are described. In a modification, Fig. 17, the re-inforcement is supported by a land 41 on the mould wall. In other respects the process is as described in Specification 751,534, which is referred to.
Patent GB-1152272-A (GB)
Title: Improvements in or relating to Electric Motors
Inventor: CAIRNCROSS HARRY SIDNEY
IPC: H02K5/15
Filed: 1967-01-12
Abstract: 1,152,272. Making electric motors. GENERAL ELECTRIC & ENGLISH ELECTRIC COMPANIES Ltd. 10 Jan., 1968 [12 Jan., 1967], No. 1758/67. Heading B3A. [Also in Division H2] The bearing brackets 6 of a shaded-pole motor are formed of ductile aluminium alloy and are provided with two hollow bosses 8 which are fitted into holes 9 in the stator. The bores 10 of the bosses are tapered so that when a punch 11 is inserted, the outside is forced into secure contact with the laminations. The holes in the bosses may be used to mount the motor. It is stated that the pressure between the bosses and their holes may cause pressure-welding. Moreover, the edges of the laminations are chamfered and this provides keying. This keying may be improved by giving some laminations bigger holes than others.
Patent GB-817019-A (GB)
Title: Rack for holding vacuum cleaner accessories
Inventor: DOWDALL THOMAS GEORGE
IPC: A47L9/00
Filed: 1957-01-17
Abstract: 817,019. Hose racks. DOWDALL & SONS Ltd., T. G. Jan. 17, 1958 [Jan. 17, 1957], No. 1781/57. Class 99(2). A rack for holding vacuum cleaner accessories comprises an inverted, U-shaped channel of a size adapted to receive and hold a flexible, vacuum cleaner, suction tube, the space between the limbs of the U-shaped channel being provided with hooks or projections for receiving and supporting other accessories. As shown, the rack is made of wire and consists of four main members 1 assembled by means of U-shaped members 2 to form an outwardly opening channel, and pairs of forwardly-extending hooks 4 secured to pair of transverse wires 3 extending between the vertical limbs 1a. Loops 5 arranged to fold back against the limbs 1a receive tubular metal sections of the cleaner, the lower end of the sections fitting over V-shaped members 6. The rack may be made from sheet material such as card or synthetic plastic.
Patent GB-1034735-A (GB)
Title: Polyurethanes
Inventor: MCELROY WILBUR
IPC: C08G18/28
Filed: 1963-01-15
Abstract: A thermoplastic polyurethane is prepared by reacting an organic polyisocyanate and a mixture of organic compounds substantially free of ester groups having two and more than two active hydrogen-containing groups, at least one of the active hydrogen containing groups being a hydroxyl group, in which the organic compound containing more than two active hydrogen containing groups provides from 0.01 to 20 per cent of the total number of active hydrogen containing groups in the mixture, the average M.W. of the organic compound mixture being less than 500.  The overall NCO/OH ratio is preferably from 0.7 to 1.3. Polyisocyanates may be acyclic, dicyclic, aromatic and heterocyclic or with condensed rings, e.g. the uretdione ring.  Triisocyanates and higher may be used.  Active hydrogen group containing compounds may be polyhydric ethers and thioethers, polyacetals, aliphatic polyols, polycarboxylic acids or polyamines. Preferred compounds are:  a polypropylene glycol of molecular weight 400 and a triol of molecular weight 3000 prepared from glycerine and propylene oxide. The reactants are mixed at room temperature or at the minimum elevated temperature to pour and agitate them. The polyurethanes may be combined with an inert solvent to form lacquers, adhesives and coatings.  Wood, paper, sponge rubber, cellular polyurethane and polystyrene, steel, aluminium and copper may be coated.  In a typical Example (9) a polyol mixture containing 0.01 moles of polypropylene glycol of M.W. 2025, 0.29 moles of dipropylene glycol of M.W. 134, 0.096 moles of oxypropylated glycerol of M.W. 3000, 0.0001 moles of ditertiarybutyl cresol and 0.004 moles of trimethylol propane of M.W. 132 the mixture having an average M.W. of 220, was reacted with tolylene diisocyanate with an NCO/OH ratio of 1.01.ALSO:Lacquers, adhesives and coatings contain a thermoplastic polyurethane prepared by reacting an organic polyisocyanate and a mixture of organic compounds substantially free of ester groups having two and more than two active hydrogen-containing groups, at least one of the active hydrogen containing groups being a hydroxyl group, in which the organic compound containing more than two active hydrogen containing groups provides from 0.01 to 20% of the total number of active hydrogen containing groups in the mixture, the average M.W. of the organic compound mixture being less than 500 and an inert solvent.  Wood, paper, sponge rubber, cellular polyurethane and polystyrene, steel, aluminium and copper may be coated.  In a typical Example (10) polyol mixture containing polypropylene glycol of MW 2025, dipropylene glycol of MW 134, oxypropylated glycerol of MW 3000, ditertiarybutyl cresol and trimethylol propane of MW 132, was reacted with tolylene diisocyanate with an NCO1OH ratio of 1.0.  The resin produced was dissolved in a mixture of ethyl acetate and toluene and applied as a coating to leather, glass and metal.
Patent GB-176201-A (GB)
Title: Improvements in well globe fittings for electric lamps
IPC: F21V15/02
Filed: 1921-01-12
Abstract: 176,201. Veritys, Ltd., and I'Ons, T. Jan. 12, 1921. Globe - holders; guards and protectors. -In an electric lamp fitting in which a ring d<2> at the upper end of the globe guard d screws into the globe-holder and grips the flange e<2> of the globe together with the packing-ring f between it and the holder, the guard is retained in position by a key-operated locking-screw c engaging a plain annular groove d' or surface provided in the threaded part of the guard, the locking-screw c being prevented from being entirely detached from the holder. In the form shown in Fig. 1, the screw-threaded plug part c of the locking- screw is screwed into a tubular piece h internally threaded for a portion of its length from the inner end and the piece is subsequently fixed by pinning it in a socket on the holder, the socket having a shoulder at its inner end.
Patent GB-797705-A (GB)
Title: Improvements in or relating to narrow band selective circuit arrangements
Inventor: KEALL OSWOLD EDWARD
IPC: H04B1/16
Filed: 1956-01-20
Abstract: 797,705. Radio receiving systems. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. July 19, 1956 [Jan. 20, 1956], No. 1978/56. Class 40 (5). In a narrow band selective system, particularly for very high frequency receivers, signal power at frequency fR is divided by means such as the rat race RR between the mixers M1, M2. Two local oscillators LO1, L02 provide frequencites fR - f and fR + f (where f is the intermediate frequency). The heterodyne outputs are passed by band-pass filters IF1, IF2, centred on f to a product detector PD. It is shown that the overall noise bandwidth is equal to that of the low-pass filter F following the detector. A band-pass filter may be substituted for the lowpass filter F.
Patent GB-562631-A (GB)
Title: Improvements in or relating to electric switches having resilient movable contacts
IPC: H01H23/12
Filed: 1943-02-08
Abstract: 562,631. Tumbler switches ; switch contacts.. SCHOLES & CO., Ltd., G. H., SCHOLES, G. H., and PEARCE, F. J. Feb. 8, 1943, No. 2037. [Class 38 (v)] A spring blade contact 15 has its ends 13, 14 bent round to rub on the base of a switch on actuation of a dolly &c. 19 to depress the flat part out of contact with fixed contacts 8, 9. The contact 15 may have its ends 13, 14 extended upward to touch the flattened upper part or the ends may be bifurcated or slotted to increase the resilience.