baber/WOPTO huggingface dataset:
Patent GB-305140-A (GB)
Filed: 1929-01-30
Abstract: 305,140. I. G. Farbenindustrie Akt.- Ges. Jan. 31, 1928, [Convention date]. o-Carboxylicacidamide-mercapto- and thioglycollic acid aryl compounds; thioindigo dyes.- In order to prepare o-carboxylicacidamidoaryl thioglycollic acids, which are intermediates for thioindigo dyestuffs, o-cyanarylsulphocyanogen compounds (see Specification 306,575) are first submitted to acid hydrolysis, and are then condensed with chloracetic acid in alkaline solution. The first step replaces the cyanide group by a carboxylicacidamide group, but in some cases the sulphocyanogen group is replaced by the group -S.CO.NH2, which on further hydrolysis by means of alkali, advantageously in the presence of a reducing agent, gives the mercapto group. In one example. 1-methyl-2-cyano-3-sulphocyano- 5-chlorbenzene, by treatment with sulphuric acid in the cold, yields the partially hydrolyzed product, which is then treated with caustic soda in the presence of sodium hydrosulphate or zinc dust, in order to give 1-methyl-3-mercapto-5- chlorbenzene-2-carboxylacidamide, and finally with chloracetic acid to give the corresponding o-carboxylicacidamidethioglycollic acid. According to further examples, 1-cyano-2-sulphocyano-4- chlorbenzene and 1-cyano-2-sulphocyano-4-ethoxybenzene are similarly hydrolyzed to the corresponding o-mercaptocarboxylicacidamides, which are then condensed with chloracetic acid in order to give the corresponding o-carboxylicacidamidethioglycollic acids. 1-Cyano-2-sulphocyanogen-4-chlorbenzene is prepared from 1-amino-4-chlorbenzene, by treating with alkali thiocyanate and a halogen (see Specification 303,813), and converting the resulting 1-amino-2-sulphocyano-4-chlorbenzene according to Specification 306,575 to the corresponding 1-cyano derivative.
Patent GB-859059-A (GB)
Title: A combined invalid wheel chair and sanitary closet
IPC: A61G5/10
Filed: 1958-01-31
Abstract: 859,059. Sanitary closets; closet seats; commodes. CRERAR, P. April 21, 1959 [Jan. 31, 1958], No. 3230/58. Class 26. In a combined invalid wheel chair and sanitary closet the latter is housed under the chair seat 6, movable to give access to the closet, comprising a receptacle 11 at the mouth of which is an annular seat 9 on which is an annular guide 12 with walls converging downwardly into the receptacle 11 and means for flushing the guide walls. This means comprises a reservoir 18, a reciprocating pump 19, conduit 22, 24 therefrom to the pipe 16 and openings 17 in the guide 12, a non-return valve 23, and an inlet conduit 20 with a non-return valve 21. The chair has a foot rest 2, a backsupport 3 on the housing 1 for the closet, a back rest 4 hinged at 5 to the support 3 and at 7 to the seat 6, and an arm 8, hingeable downwards and outwards at 8A in using the closet, between which and the pump 19 is a connection to actuate it on hingeing movement of the arm 8. The seat 9 is hingeable upwards at 10 for removing the receptacle 11 and filling the reservoir 18. The guide 12 sealingly engages the receptacle rim 11A, and a hinged flap 13 is mounted at the lower end of the guide walls for completely closing the receptacle 11, and is to connected to the chair seat 6 that by moving it the receptacle 11 is opened or closed. The chair has a pair of rubbertipped feet which support its rear with the wheels 1B clear of the floor, or vice-versa, on hinging the other arm 8. The chair may, alternatively, be braked by lever-operated brake-blocks engaging the rear wheels through a lever at the front of the chair. At least one of the arms 8 consists of a box-shaped receptacle for toilet requisites having an opening 8B, the arms 8 when erect being held by spring catches engaging in recesses in arm supports 3A and released by handles 8C. According to the Provisional Specification a gravity feed pipe leads from the tank through a non-return valve to a rubber bag under the housing floor and pressed against it by a plate bolted thereto. When the seat is occupied, the receptacle moves down against spring action and the bag is released, water flowing from the tank downwards through the valves. On vacating the seat, the bag is compressed and water is sprayed into the guide.
Patent GB-1488934-A (GB)
Title: Method and apparatus for producing synthetic resin tube
IPC: B29C65/20
Filed: 1975-01-24
Abstract: 1488934 Making pipes SEKISUI KAGAKU KOGYO KK 24 Jan 1975 [28 Jan 1974 16 April 1974] 3268/75 Heading F2P A method of producing a synthetic resin tube comprises the steps of transporting a strip 1 of synthetic resin in its longitudinal direction, deforming the strip 1 into a tubular shape and simultaneously bringing both edges of the strip 1 into pressing contact with each other while passing the strip 1 through a restricted space 14 characterized in that the peripheral length of the restricted space is automatically adjustable in accordance with the variation of the transverse dimension of the strip 1. With reference to Fig. 1 the strip 1, which may be polyethylene, polystyrene or polyamide, is pulled from a roll 2 by pinch rollers 3, guide rollers 4 preventing creasing of the strip and also tensioning it, the strip 1 being softened by a heater 5 prior to entry through curving means 6 whereafter the strip 1 enters means 8 deforming the strip into a tubular shape and joining the edges thereof, the cutter 10 serving to cut the tube 9 into suitable lengths. The curving means 6 (Fig. 6) comprises a pipe 11 in which a bearing 12 is mounted to be vertically movable with respect to the pipe and supporting guide rollers 13 contacting the edges 1a, 1b of the strip 1 which has been deformed therein to a trough-like shape. The means 8 for deforming the strip 1 into a tubular shape comprises stationary member 16 anchored to a suitable base by a leg 18, and coupled to movable members 17a and 17b by spring loaded bolts 20, defining a restricted space 14 having a frusto-conical portion 23 to facilitate entry of the strip 1 thereinto, a heating element 15 being mounted so as to contact one of the edges 1a, 1b of the strip 1 to render it adhesive. The movable members 17a, 17b have a plurality of longitudinal slots 24 such that the fused edges 1a, 1b of the tube can be air cooled, both pressing and movable members 16 and 17a, 17b, which may be made from sintered metals, may have the surfaces which contact the strip coated with silicone resin or fluorine-containing resin having low frictional resistance. The pressing members 17a, 17b may also be provided with idle rollers to press on the strip 1.
Patent GB-432647-A (GB)
Title: The manufacture of new dyestuffs of the anthraquinone series
IPC: C09B1/40
Filed: 1934-01-31
Abstract: 1 - amino - 4 - halogenanthraquinone - 2 - sulphonic acids containing an acylamino group in 5- or 8-positions are condensed with amines which contain at least one hydrogen atom attached to the amino nitrogen atom.  Specified amines are ammonia, primary or secondary aliphatic, hydroaromatic or aromatic amines, mixed aliphatic-aromatic amines, aliphatic hydroaromatic amines, aromatic diamines, mono- and diamines of diphenyl, sulphamino compounds.  In examples 1-amino-5-acetylamino-4-bromanthraquinone-2-sulphonic acid is condensed with ammonia, methylamine aniline, hexahydroaniline, p-aminoacetanilide, 1,4 - dimethoxy - 2 - amino - 5 - acetylaminobenzene and monacetylbenzidine, and the corresponding 8-acetylaminoanthraquinone derivative is condensed with aniline, hexahydroaniline, p-aminoacetanilide, 1,4-dimethoxy-2-amino-5-acetylaminobenzene.  The products dye wool from an acid bath in blue to green shades.  The anthraquinone starting materials may be prepared by acylating 1,5- or 1,8-diaminoanthraquinone - 2 - sulphonic acids followed by halogenation of the products obtained.
Patent GB-278568-A (GB)
Title: Improvements in floor blocks
IPC: E04F15/04
Filed: 1927-02-05
Abstract: 278,568. Kent, F. Feb. 5, 1927. Wood flooring blocks.-The blocks are keyed to their cement bedding by an undercut groove 2, 5 extends completely around the lower periphery, and a longitudinal dovetail groove 3. while the blocks are interlocked by a tongue 8 formed on one side and end and a corresponding groove 9 on the opposite side and end, the tongue and groove being spaced above the groove 2, 5. In forming the end groove 5, a transverse slot 6, Fig. 4, is made in order to prevent tearing of the fibres during cutting.
Patent GB-907722-A (GB)
Title: Circulation tempering of chocolate and similar substances
IPC: A23G1/18
Filed: 1959-01-30
Abstract: 907,722. Treatment of chocolate; enrobing. SOLLICH, R. Jan. 30, 1959, No. 3334/59. Classes 28 (1) and 129. Chocolate is continuously withdrawn from a tempered supply and all or part is detempered and, with the addition of further untempered chocolate if required, is retempered and returned to the tempered supply. Tempered chocolate 6 is taken via a pipe 6a from the storage receptacle 2 of an enrober 1 and is supplied in excess to articles 7 to be coated on the conveyer 5, the surplus 8 flowing back to receptacle 2. Tempering device 9 comprises heating (detempering) and cooling (tempering) tanks 10, 11 and these are connected with the enrober by pipes as shown. The system including the connecting pipes is provided with hot water jackets. A feeding pump 12 withdraws chocolate b from the chocolate a in receptacle 2 and delivers it through pipe 13 to the tank 10 which is at 36‹ to 40‹ C. Further untempered chocolate c is added to tank 10 from which the chocolate passes to tank 11 where it is tempered and this chocolate d is returned to receptacle 2. Tank 11 has a cold water jacket connected to the mains through a thermostatically controlled valve. The liftable weir plate 16 enables receptacle 2 to be emptied into the heating tank 10. In a modification, a similar enrober and circulation system is used with a different tempering device 109. This device 109 has detempering and retempering tanks 110, 111 connected by a worm device 112. A small reservoir 114 at one end of tank 110 separates some of the chocolate and passes it on to tank 111 without substantial detempering.
Patent GB-251695-A (GB)
Title: A new or improved appliance for holding animals
IPC: A22B1/00
Filed: 1925-02-06
Abstract: 251,695. Holland, W. Roper-Lumley-, and Sherman, J. E. W. Feb. 6, 1925. Drawings to Specification. Animals, appliances for holding.-A hand-tool for holding animals for attention or slaughter consists of pivoted levers, a series of pivot holes being provided in each lever to permit adjustment.
Patent GB-638457-A (GB)
Title: Improvements in or relating to photographic emulsions
IPC: G03C1/04
Filed: 1948-02-05
Abstract: 638,457. Photographic emulsions. DU. PONT DE NEMOURS & CO., E. 1. Feb. 5. 1948, No. 3405. Convention date, Feb 6, 1947. [Class 98 (ii)] Water-soluble salts are removed from a silver-halide emulsion made with a non- gelling, hydrophilic polymeric colloid by dialysis. The silver halide is precipitated into a solution of the colloid in water, or water with a miscible solvent, in the same way as for gelatin emulsions, and then, since these colloids cannot be alternately set or gelled and melted by temperature changes like gelatin, dialysis replaces the customary chilling, shredding and washing procedure. Suitable polymeric colloids include partially hydrolysed polyvinyl lower fatty acid esters, lower alkyl ethers and acetals ; hydrolysed vinyl ester copolymers with ethylenically unsaturated compounds such as methyl acrylate, methyl methacrylate and ethylene, especially the ethylene/vinyl acetate copolymers described in Specification 600,023 ; colour former polymers as described in Specifications 535,341, 593,088, 598,475, 627,353, and 635,294, partially hydrolysed cellulose acetate, methyl cellulose, sodium cellulose glycollate, polyamides as described in Specifications 595,375 and 619,553, and polydioxolanes as described in U.S.A. Specification 2,436,138. The semi-permeable membrane may be uncoated regenerated cellulose film, gelatin, chromated gelatin, parchment paper, denitrated nitrocellulose, collodion, animal membranes and various synthetic resin and superpolymer membranes.. Dialysis may be effected by placing the emulsion containing either all or a part only of the colloid in a cell or bag of regenerated cellulose, arranging this in a perforated frame with walls about a quarter inch apart and shaking the frame while it is surrounded by water, or by continuous flow of emulsion through such narrow plate-supported cells. Diminution of the electrolyte content of the emulsion may be followed by conductivity measurements. When the emulsion includes a solvent such as alcohol, additions of solvent may be made during the dialysis to prevent precipitation of the colloid. Eight examples detail the process and indicate its superiority over acetone or sodium sulphate coagulation and washing processes such as those described in Specification 600,023.
Patent GB-1058681-A (GB)
Title: Hermetically sealed electric snap switch
Inventor: MIACHON LOUIS
IPC: H01H13/50
Filed: 1964-01-27
Abstract: 1,058,681. Switch cases. COMPAGNIE ELECTRO-MECANIQUE. Jan. 27. 1964, No. 3429/64. Heading H2B. The casing of an electric switch is made from two moulded parts of thermoplastic resin, which are fused together to enclose and seal the switch. The switch described is a microswitch and the cap 2 is fused to the base 1 by positioning a continuous metal packing ring between the cap and base and heating the ring by induction so as to cause local melting of the joint between them. Alternatively, an external metal strap, placed adjacent the joint, may be used. The cap 2 is formed with a portion of reduced thickness 17. forming a flexible diaphragm, in a central portion of which a push-button 3 is located so that pressure F actuates the switch. The switch may be reset automatically when the force is removed or it may be manually reset if a second diaphragm and push-button are provided in the base. Switches of this latter type may be stacked to form a ganged system.
Patent GB-928711-A (GB)
Title: Supporting leg and holder therefor
IPC: F16B12/52
Filed: 1962-01-30
Abstract: 928,711. Mounting for tubular furniture legs; tables. N. WASSERSTROM & SONS Inc. Jan. 30, 1962 [July 20, 1961], No. 3479/62. Classes 52 (1), 52 (2) and 52 (3). Tubular legs 22 are each attached to sinks, tables &c. by a holder 20 comprising a tubular housing 26 in which a spring metal gripping member 36 is centrally located by radially extending flanges 44 attached to the split sleeve 38, the member 36 having spring fingers 46. The housing 26 is welded as at 30 to the underside of the sink and the leg 22 is gripped and frictionally retained by the parts 50, 52 of the fingers and by the sleeve 38. Adjustable feet 24 each comprise a tubular body 54 flanged at 58 that is pushed into the open bottom of the leg 22 and into which screws a foot member 62.
Patent GB-571584-A (GB)
Title: Improvements in or relating to suction cleaners
IPC: A47L5/36
Filed: 1944-02-25
Abstract: 571,584. Suction cleaners. HOOVER, Ltd. Feb. 25, 1944, No. 3511. Convention date, April 26, 1943. [Classes 8 (i) and 8 (ii)] In a fan suction cleaner of the type comprising a preliminary separator or whirling chamber 12, Fig. 1, a final separating chamber 31 containing a filter bag 32, and a filter cleaning nozzle which returns dirt to the preliminary chamber or inlet port, the filter cleaning nozzle is caused to move over the filter in response to movement of casing or main cleaning nozzle. Step by step rotation of the filter cleaning nozzle is effected by pawl and ratchet 74, 58. The ratchet is fixed to the bushing of the nozzle arm 47 and the pawl is carried by a bell-crank lever 71 pivotally mounted on a bracket 72 on an inner casing wall 54. The upper arm of the lever is bracketed to lower plate 66 of bellows 61 connected by conduit 67 to the main inlet 23.,; where pressure changes cause the lower bellows plate to reciprocate and the filter cleaning nozzle to rotate. Such pressure changes are induced by a rocking plate 76 pivotally,.mounted in the main nozzle 10 admitting additional air on each reversal of direction of movement of the main nozzle. In a modification, Figs. 8 and 9, the ratchet 58 is rotated by a spring loaded pawl 86 carried by a spring controlled armature 82 of a solenoid 81 energised by a bob-weight operated switch located between the outer casing 1 and the preliminary separator 12 and actuated by movement of the cleaner.
Patent GB-180724-A (GB)
Title: Improvements in means for making and breaking electrical circuits
IPC: H01H21/24
Filed: 1921-01-29
Abstract: 180,724. Davies, A. E., and Brown, F. M. Jan. 29, 1921. Retractive switches.-A spring contact member tends to engage a fixed contact but is normally deflected out of engagement by a spring-actuated controlling - member; manual operation of the controlling- member allows contact to be made. The controlling- member 7 is fixed to the spindle 2 and is pressed in in a clockwise direction by the spiral spring so that the insulating projection 8 normally deflects the spring contact 9 away from the fixed contact 10. Actuation of the switch is effected by a handle fixed to the spindle 2. The handle is mounted outside the casing, and moves between limiting stops.
Patent GB-1136099-A (GB)
Title: Liquid-containing pressure- or heat-sensitive dry sheet material
Inventor: GORDON THOMAS TAYLOR
IPC: A61K9/70
Filed: 1966-01-27
Abstract: 1,136,099. Papermaking; pressure-sensitive copying sheets. NATIONAL CASH REGISTER CO. 22 Dec., 1966 [27 Jan., 1966], No. 3694/66. Headings D2A and D2B [Also in Division B2] A dry sheet material (1), e.g. of paper or plastics polymer, has a foraminous structure, and contains within and filling its foramina a solid material (4) having entrapped therein and dispersed therethoughout droplets (3) of a liquid, the solid material being rupturable by pressure or heat to release the entrapped liquid. The solid material may be gelatin, casein, polyvinyl alcohol or a mixture thereof. The droplets may be contained as an emulsion therein, or may be contained as cores in microcapsules (fig. 6, not shown). The sheet material may have a coating on one or each side, which may be protective, or may be impermeable to the liquid of the droplets, so causing it to emerge on the other side of the sheet only. The liquid may be dryable adhesive so that when the sheet is pressed onto one or between two other sheets or solid objects they can be caused to adhere. The droplets may comprise a colourless dye-stuff, e.g. crystal violet lactone, in a solvent, and the coating may contain a phenolic polymer so that on rupture of the solid material, the two are brought into contact and react to give a colour over the area pressed. If one reagent is encapsulated, the other may also be present in the foramina as droplets or solid particles, e.g. the capsules may contain an epoxy resin and the binder a catalyst, or the capsules may contain a dissolved dyestuff and the binder particles of clay. The foraminous sheet may be made on a Fourdrinier machine in which the wire has vertical pins arranged in the pattern to be produced, the length of the pins beng equal to or a little greater than the thickness of the paper. Alternatively finished paper or plastics sheet can be perforated mechanically, or particles of a material insoluble in the pulp can be incorporated and subsequently leached out or sublimed off. The mixture of solid material and liquid droplets may be applied by ordinary paper-coating techniques, on or off the machine, the web being carried over a bed to prevent egress of the mixture to the underside. A doctor blade may be set to leave a coating of the mixture, or so that the mixture fills the foramina but substantially none remains on the surface of the sheet.
Patent GB-410571-A (GB)
Title: Improvements in the manufacture of boots and shoes
IPC: A43D25/06
Filed: 1933-02-07
Abstract: 410,571. Shoe making. POCHIN, H. S., and DOVE, G. H., Standard Works, Eving- ton Valley Road, Leicester. Feb. 7, 1933, No. 3747. [Classes 17 (i) and 17 (ii).] Connecting uppers to soles; sole-laying.-In the manufacture of shoes having their soles secured by cement, cellulose cement is applied to the lasted upper and/or the sole and allowed to dry out, and the lasted section of the upper is heated prior to the application of the solvent. A suitable apparatus for heating the upper comprises a table in parts a<1>, a<2> hinged together to allow of adjustment to suit the shape of the shoe bottom, clamping nuts f securing the parts in adjusted position. Electric heaters d are provided, and the inner edge of the table may be upturned to prevent the work projecting over its edge. The table may be covered by asbestos sheets, overlapping at the hinges. A hood k localizes the heat. In a modification, heaters are arranged in a box-like structure having a metal top shaped to conform to the average longitudinal contour of a lasted shoe.
Patent GB-946291-A (GB)
Title: Improvements in or relating to transistor circuits
Inventor: DOWNER MICHAEL ERNEST HAWES
IPC: G08B23/00
Filed: 1959-02-03
Abstract: 946,291. Transistor switching circuits. MULLARD Ltd. Jan. 19, 1960 [Feb. 3, 1959], No. 3802/59. Heading H3T. [Also in Division G4] A switching circuit for use in a protection or alarm system of the kind in which the failure or alarm condition is indicated by the absence of a normally-present directvoltage output, comprises a transistor having a repetitive pulse waveform applied continuously to its base electrode and the direct voltage applied to energize its collector-emitter circuit, an output being taken from said circuit through a coupling device which permits the passage of alternating output only, so that in the event of a failure neither an alternating nor a direct voltage appears at the output. Since a similar result obtains in the event of any failure in the switching circuit, the circuit is inherently " fail-safe." In the arrangement illustrated in Fig. 2, direct-voltage inputs, representating normal working of respective devices being monitored, are applied to terminals 9 and 11, so permitting, under normal conditions, the translation of a pulse waveform to the output where it is rectified to provide a negative direct voltage suitable for application as an input to a similar further circuit. In the circuit shown, the coupling device for the passage of the alternating component of the output of transistor 2 is constituted by a transformer having an earthed screen 20 to prevent a false indication being given at the output terminal 27 in the event of an insulation breakdown in the transformer. Alternatively, a capacitor or an indirectly heated thermistor may be used as the coupling device. Since simultaneous presence of directvoltage inputs at terminals 9 and 11 are required for the production of an output, the circuit may be described as an AND-circuit Fig. 3 (not shown) illustrates a corresponding OR-circuit in which a plurality of direct-voltage inputs are applied in parallel to the emitter-collector circuit of a single transistor. A plurality of such circuits may be cascaded, Fig. 4 (not shown), to obtain a combined AND-OR operation. Fig. 5 shows a system employing majority logic. Provided two out of the three direot-voltage inputs 34, 35, 36 are operative, one at least of AND-circuits 31, 32, 33 will deliver a direct-voltage output to OR-circuit 37 which will consequently deliver an output.