baber/WOPTO huggingface dataset:
Patent GB-1110750-A (GB)
Title: Balanced constant impedance modulators and demodulators
Inventor: GINGELL MICHAEL JOHN
IPC: H03H19/00
Filed: 1967-05-26
Abstract: 1,110,750. Amplitude modulation; frequency changing circuits. STANDARD TELEPHONES & CABLES Ltd. 26 May, 1967, No. 24579/67. Headings H3F and H3R. A balanced constant impedance modulator comprises sampling means SW1 having N output channels (two in Fig. 1), each connected to one of the output terminals 3, 4 via one winding L of an inductor having N windings and each connected to earth through an impedance R, each of the N sampling periods being delayed in time on the preceding one by an amount T/N when T is the period of the sampling frequency. Fig. 1 shows the modulator; a demodulator (Fig. 2, not shown) is the same circuit in reverse with the input applied to terminals 3 and 4 and the output taken from switch SW1 through a high impedance amplifier. When there are more than two channels the input switch may be an N-position rotary switch (Fig. 3, not shown) or may be replaced by N simple switches (Fig. 4, not shown). The impedances R may be resistances or capacitors. Frequency changing circuits.-The modulator/ demodulator may be used in the frequency translation system described in Specification 1,081,240 (Fig. 6, not shown). When N is an even number, pairs of channels may share a common filter (Fig. 8, not shown). For a threephase system (Fig. 9, not shown), the three channels may share a common three-phase filter. The system may operate as an N-path filter by making the modulating and demodulating frequencies the same.
Patent GB-240854-A (GB)
Title: Process for the manufacture of liquid fuels similar to petrols derived from solid fuels by the conversion of distillation and gasification gases
IPC: C10L1/04
Filed: 1925-10-02
Abstract: 240,854. Prudhomme, E. A. Oct. 3, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Hydrocarbons, cracking.-Hot gases from the distillation or gasification of solid fuel are passed through purifying apparatus maintained at the temperature of the gases and are then conveyed without condensation over catalysts at the temperatures necessary to cause formation of uncondensable gas and liquid fuel. The tars and a portion of the uncondensable gases participate in this conversion.
Patent GB-1364328-A (GB)
Title: Insulating base with plug-on conductor and terminal connector assembly for circuit breaker panelboard
IPC: H02B1/056
Filed: 1972-05-25
Abstract: 1364328 Mounting bases for circuit breakers SQUARE D CO 25 May 1972 [9 June 1971] 24607/72 Heading H1N [Also in Division H2] An insulating base member 10 into which a circuit breaker 33 may be plugged comprises a pair of parallel walls 20, 22 upstanding from a base-plate 14, wall 20 being taller than wall 22 and being provided with an opening 42 therethrough which is aligned with an upwardly opening recess 22a in wall 22. A plug-on terminal connector member 12 having a wire connecting portion to the left of wall 20, extends through the opening 42 in wall 20 and is retained in position by a tang portion 12c whose reduced dimension portion rests in the recess 22a and whose cross-bar engages the shorter wall 22. The tang portion 12c is initially bent upwards for insertion into the base member and is only straightened once it is in position. As shown two line terminal connectors 12 separated by a partition 26 and a portion 28 are provided for two circuit breakers. Neutral terminals 13 are provided. Each circuit breaker has jaws which plug-on to the flat portions 12b of one of the terminal connectors 12 and a spring clip which co-operates with a rounded edge 18a of an end wall 18.
Patent GB-941742-A (GB)
Title: Antiknock concentrate
IPC: C10L1/10
Filed: 1961-07-07
Abstract: An anti knock concentrate comprises tetramethyl lead and 10 to 150% of a hydrocarbon liquid boiling in the range from 100 DEG  to 120 DEG C. The hydrocarbon can be straight- or branchedchain paraffins, olefines, aromatics, or naphthenes, suitable ones being listed. Scavengers, e.g. ethylene dibromide and dichloride, dibromotoluenes, b ,b 1-dichlorodiethyl ether and 2-chloro-4-nitropentane, and anti-oxidants, e.g. ditertiary butyl phenol, may also be present.
Patent GB-683990-A (GB)
Title: Preparation of senna products
Inventor: RYAN HERBERT ALAN
IPC: A61K36/00
Filed: 1950-10-10
Abstract: Senna pods are broken up, the pericarp is separated from the seeds, the latter being rejected, and the pericarp is then ground to a powder.  The powder may be dehydrated by heat and thereafter stored in air-tight containers.  The powder may be ultimately mixed with sugar, cocoa, saccharin, vanillin and sodium lauryl sulphate, the mixture being then wetted with an aqueous solution of malt extract, the wet mixture being granulated by being passed through a sieve and the resulting granules being dried.
Patent GB-717698-A (GB)
Title: Improvements in or relating to treatment of synthetic textile materials
Inventor: PETERS HARRY WADE
IPC: D06M13/152
Filed: 1951-10-25
Abstract: Textile materials composed of or containing fibres or filaments of a high synthetic linear condensation polymer have incorporated with them a minor proportion (i.e. insufficient to cause sensible swelling) of a mono- or polyhydric phenol of the benzene or naphthalene series which may carry as substituents halogen atoms, or alkyl, alkoxy, carboxy or sulpho groups, or an ester or salt of the phenol.  The polymer may be polyhexamethylene adipamide or sebacamide, polycaprolactam, polypentamethylene sebacamide, polyglycol terephthalate, a polyurethane, polyhexamethylene urea, a polyether, polybutylene glycol hexamethylene dicarbamate or polyoctamethylene-4-amino-1 : 2 : 4-triazole.  The phenol may be alpha or beta-naphthol, hydroquinone, resorcinol, or catechol. Pyrogallol or phloroglucinol may be used but they tend to colour the textile material.  Phenol derivatives which may be used are salicylic acid, beta-naphthol-6 : 8-disulphonic acid, alpha-naphthol-4-sulphonic acid, gallic acid, guaiacol, o-, m- or p-cresol, phenyl benzoate, o-, m- or p-hydroxyphenyl benzoate, p-methoxyphenyl benzoate, phenyl salicylate, p-methoxyphenyl p-anisate, phenyl acetate, and resorcinol mono- or diacetate or mono- or dibenzoate.  A hypophosphorous acid compound such as sodium hypophosphite (see Specification 639,893) may be employed in conjunction with the above phenols.  The phenols or their esters or salts may be applied as dilute solutions, e.g. aqueous or alcoholic. In an example a fabric of polyhexamethylene adipamide yarn is immersed in a saturated aqueous solution of beta-naphthol at room temperature, squeezed between rollers to leave on the material 50 per cent. of its weight of solution, and dried, thus leaving in the material about 0.04 per cent. by weight of beta-naphthol.  In other examples similar fabric is treated in the same manner with aqueous solutions of beta-naphthol and other phenols and substituted phenols containing also 1/2 per cent. of sodium hypophosphite.  Data are given for the bursting strength of the treated and untreated fabric (and of the viscosities of solutions of the fabric material in 90 per cent. p  formic acid) both unheated and after heating at 216 DEG  C. for 5-30 minutes.  The reduction in the viscosity and in the bursting strength resulting from heating is less for the treated fabric.
Patent GB-920720-A (GB)
Title: Device for carrying out the simultaneous laying and burying of a submarine cable
IPC: F16L1/20
Filed: 1961-07-10
Abstract: 920,720. Laying cables. COMPAGNIE GENERALE D'ELECTRICITE. July 10, 1961 [July 13, 1960], No. 24962/61. Class 36. A device for simultaneously laying and burying a submarine cable comprises a flexible pipe consisting of rings 8 each with a prime number, e.g. 3, 5, 7, of external projections 12 which is dragged over the seabed by a ship, the cable which passes through the pipe being laid as it leaves the pipe in the trench so dug. Rings 8 are connected by Cardan joints 10 of which adjacent ones are at right-angles to each other. The upper part of the pipe has no projections.
Patent GB-869722-A (GB)
Title: Variable spacing mechanism for typewriters
IPC: B41J19/58
Filed: 1959-07-22
Abstract: 869,722. Typewriters &c. OLIVETTI & C., S.p.A. Ing. C. July 22, 1959 [July 26, 1958; June 27, 1959], No. 25113/59. Class 100(4) A variable spacing escapement mechanism comprises a rack 4 urged in a letter-spacing direction 5 and held by one of three movable dogs 6-8 which are mounted to swing together about a shaft 10 into and out of engagement with the rack and to be moved in a counter letter-spacing direction by springs 13 when disengaged from the rack by a projection 19 of a selectively operated lever 20 which after guiding the movement arrests the dogs. Depression of a character key. moves a bail which rotates one lever 20 to give a spacing movement appropriate to that character. Counterclockwise rotation of a lever 20 engages its projection 19 with a guiding portion 16 of the dogs 6-8 rocking them about the shaft 10 and after their disengagement from the rack 4 allowing them to slide guided by the surface 16 in a counter letter-spacing direction until their projections 18 are arrested by the moved projection 19 and their slots 17 allow them to re-engage. Rocking of a lever 20 also withdraws a lever 24 from a fixed dog 28 allowing its spring 29 to engage it with the rack 4 and to stop its movement after a maximum of three units of travel if the dogs 6-8 have failed to reengage before the rack 4 moves. In a modification the single dog 28 is replaced by three levers one of which always arrests the rack after a small initial movement and holds it until the movable dogs, which do not have slots 17, can re-engage the rack after which the fixed dogs are disengaged and the escapement movement is completed. To alter the spacing effected by each of the levers 20 the mounting plate 22 can be swung about pivots 40 by a slide 43 to alter the position of the projections 19.
Patent GB-486380-A (GB)
Title: Process for the manufacture of acid sodium fluoride
IPC: C01D3/02
Filed: 1937-09-16
Abstract: <PICT:0486380/III/1> Acid sodium fluoride is obtained by acting on a sodium chloride solution with hydrofluoric acid, the quantities used being in accordance with the equation NaCl + 2HF = NaF.HF + HCl.  The reaction may be carried out continuously in apparatus comprising receptacles 1, 7 communicating through a passage 9, which may be cooled.  A saturated solution of common salt is introduced into the apparatus, powdered salt is supplied continuously to the vessel 1 by the aid of an air current through pipe 3, and hydrofluoric acid is supplied continuously through pipe 5 and globe 6 to the vessel 7. Hydrochloric acid free from HF leaves the vessel 1 by the pipe 4, and solid acid fluoride collecting at the bottom of vessel 1 is withdrawn into a hydroextractor 12, mother liquor being returned through a pipe 13.  Circulation of the liquid through passage 9 may be assisted by an agitating device, and a small centrifugal pump may be provided to maintain the levels in vessels 1, 7 through a pipe 10.
Patent GB-1066412-A (GB)
Title: Bacteriostatic fibres of acrylonitrile polymers
Inventor: LOWES FRED JOHN
IPC: A61L2/00
Filed: 1965-06-15
Abstract: 1,066,412. Bacteriostatic acrylonitrile polymer fibres. DOW CHEMICAL CO. June 15, 1965, No.25297/65. Heading B5B. Acrylonitrile polymer of copolymer fibres are rendered bacteriostatic by the incorporation of 2, 2<SP>1</SP> - thiobis(4, 5 - dichlorophenol), 2 - chloro - 4 - phenyl-phenol or 2,4-dihydroxybenzophenone. The quantity incorporated should preferably be at least 0À5% by weight and not normally in excess of 20%. The hydroxyaromatic compound may be added (as a concentrated dispersion) to the spinning solution or the extruded fibres may be immersed in a solution of the compound either in the aquagel or the finally oriented dried state. In examples waterswollen unstretched tows formed by extrusion of an aqueous saline solution of polyacrylonitrile into an aqueous coagulating bath were washed and then immersed for about 10 minutes in 0À5% by weight solutions of each of the specified hydroxyaromatic compounds. After rinsing, drying, treatment with hot aqueous detergent, rinsing and drying the heated tows were tested for bacteriostatic properties.
Patent GB-1216637-A (GB)
Title: Printing inks containing polyethylene waxes and process for making them
IPC: C09D11/12
Filed: 1969-05-19
Abstract: 1,216,637. Printing ink containing polyethylene wax. FARBWERKE HOESCHT A.G. 19 May, 1969 [25 May, 1968], No. 25297/69. Heading C3P. A printing ink containing 0À5-3% by weight of the total composition, of a polyethylene wax of M.W. = 3000-12,000 or a mixture of at least 50% of said wax and at most 50% of a polyethylene wax of M.W. = 1500-3000, is found to have improved resistance to abrasion and chafing. The polyethylene wax of M.W.= 3000-12,000 may be made by degration of high or low pressure polyethylene.
Patent GB-277183-A (GB)
Title: Improvements in or relating to hoppers for blast furnaces
IPC: C21B7/18
Filed: 1926-10-12
Abstract: 277,183. Marley, W. Oct. 12, 1926. Charging.-In a blast furnace, charging-hopper 1 having the usual detachable ring 4 forming a seating for the bell, the ring is formed with a projecting flange 3 which rests on the inturned lower end 2 of the hopper and is engaged by rods 6 to hold the ring firmly in position. Each rod 6 is housed in a hollow boss or channel 7 in the hopper wall and is held in firm engagement with the flange 3 by a cotter 9. Fig. 1, which engages in a cotter-way 10 in the rod and a slot 12 in the boss 7. The latter is provided with; a second slot 11 in which the cotter 9 is engaged when it is desired to release the ring 4 or each rod may be held in the disengaged position by a nut engaging its screw-threaded upper end and bearing on the top face, of the boss 7. Fig. 4 shows a, modification in which the rod is held in the required position by nuts 13, 14 engaging its screw-threaded upper end and arranged one on each side of a lug 15 projecting from the hopper. In a further construction a single nut arranged in a recess in the boss 7 is provided.
Patent GB-1495110-A (GB)
Title: Hair-curler
IPC: A45D2/28
Filed: 1976-06-18
Abstract: 1495110 Hair curlers LUCKY HAIR PRODUCTS KK 18 June 1976 25398/76 Heading A4V A hair curler comprises a tubular openwork roller 1 with a cellular synthetic resin cover 15, and a clamping bow 17 pivoted on a support part 9 rotatably mounted in one end of the tubular roller, the free end of the bow having a projection 21 to engage in one of two or more slots 7 which intersect each other in the other end of the roller. As shown, the roller comprises annular ribs 4 and straight ribs 5, there being cuts 12, 13 through the ribs 5 in the central region of the roller to give it greater flexibility. Alternatively, Fig. 7 (not shown), a helical section (14) in the centre of the roller imparts the flexibility. The plastics cover may be of a polyurethane foam with a smooth outer surface or, as in Fig. 8 (not shown) the outer surface may be ridged. The clamping bow 17 may Fig. 9 (not shown) have portions of wave-like form and also protrusions (22) to aid in gripping the hair.
Patent GB-767056-A (GB)
Title: Improvements in or relating to means for circulating mine cars
Inventor: GOODMAN WILFRED
IPC: B66B17/20
Filed: 1954-09-01
Abstract: 767,056. Decking-apparatus for multi-deck pit cages. COAL INDUSTRY (PATENTS), Ltd. Aug. 30, 1955 [Sept. 1, 1954], No. 25407/54. Class 78 (4). The feeding and receiving tracks 15, 16 or 22, 23 at the top or bottom of a pit hoist 10 are arranged one above the other on the same side of the shaft. As illustrated, each cage 11, 12 has four decks, although only three cars are hoisted at a time. Thus a loaded car 13, can be moved on to the lower 23 of two pairs of tracks at the pit head while an unloaded car is moved from one of an upper pair of tracks 22 into the cage 11. 'The cage may then be moved upwardly through the spacing of one deck for a similar transfer of cars to be made and this can be repeated until the three loaded cars have been discharged and three emptied cars fed to the cage. A similar procedure permits loaded cars to be moved into a cage 12 from a track 15 at the bottom of the shaft while emptied cars are discharged to a track 16. Instead of the cages being gradually moved upwards at the pit head and downwards at the pit bottom during decking their motions may be reversed, the positions of the tracks 15, 16 and 22, 23 being similarly reversed. The cars may be fed by gravity, e.g. by inclining the floors of the cages, or by suitably disposed rams, and hoists 17, 27 transfer cars between the pairs of tracks. A tippler 25 unloads the cars at the pit head while a conveyer 19 loads them at the pit bottom.
Patent GB-224683-A (GB)
Title: Improvements relating to apparatus for the dyeing or other fluid treatment of yarn packages on spindles
IPC: D06B5/16
Filed: 1923-10-12
Abstract: 224,683. Brandwood, J., Brandwood, T., and Brandwood, J. Oct. 12, 1923. Circulating or passing fluids through materials on perforated tubes. - To compress yarn packages which have been placed upon perforated spindles &c. 16 for dyeing purposes &c. as described in Specification 190,760, a lever 9 with a bifurcated slotted and engaging pin 8 on a tapped cylindrical member 7 on the central rod &c. 5 is used to press down a bell-shaped member 12 and a top plate 14 resting on the cheeses 15 until a hole 18 in the spindle clears the top plate 14. A pin 23 is then passed through this hole, the member 12 being cut out at 19 for this purpose, and the pressing means are then applied to a set of cheeses on another spindle. The pins hold the cheeses on the various spindles at an equal state of compression during the dyeing &c., the position of the holes 18 being arranged for this purpose. A circular plate 24 may be placed over the plate, 14 and be secured in position by means of a screw 25 and washer. The lever 9 may be provided with several holes 20, to receive a pin 21 passing through lugs on the member 12, or with several pins to engage slots in a plain cylindrical pressure member. Each spindle may be formed with several holes 18.
Patent GB-334055-A (GB)
Title: Improvements relating to mountings for photographs or the like
IPC: A47G1/06
Filed: 1929-08-21
Abstract: 334,055. Turpin, W. J. Aug. 21, 1929. Photograph and like mounts; pictures. - A mounting for a photograph or the like comprises a panel 1 shaped to correspond with the outline of a figure in the photograph or the like, and to form an ornamental margin 2 representing a frame, a backing plaque on which the panel is mounted, and a background 4 of black or coloured fabric or a pictorial representation interposed between the panel and the plaque. The figure cut out from the photograph or the like and attached to the panel stands out in relief from the background.
Patent GB-241551-A (GB)
Title: Improvements in electric motor speed regulator systems
IPC: H02P5/48
Filed: 1925-10-12
Abstract: 241,551. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Staege, S. A.). Oct. 14, 1924, [Convention date]. Speed-maintaining systems.-Motors for driving different units of a paper-making machine are automatically regulated to run at constant but adjustable relative speeds by means of rotary interrupters 14 with slidable brushes 15, the position of which is varied by helical gearing 38 actuated differentially by motors 18 running at speeds always proportional to the speeds of the different working motors 3 and by synchronous motors 17 connected in common to a source of constant but adjustable frequency 21. A displacement of the brush on any of the interrupters varies the effective value of a resistance 11 in the field-circuit of the corresponding motor 3, which is thus restored to normal speed. Adjustment of the speeds of individual motors is provided for by variable mechanical transmissions 27. Adjustment of all the motors together is provided for by varying the voltage of the direct-current supply 6, 7.
Patent GB-1493214-A (GB)
Title: Process for the recovery of diepoxides from liquid epoxy resins
IPC: C09D5/46
Filed: 1976-06-18
Abstract: 1493214 Recovery of diepoxide from a liquid epoxy resin SOC ITALIANA RESINE SIR SpA 18 June 1976 [8 July 1975] 25489/76 Heading C2C A process for recovering a diepoxide having a viscosity of from 3000 to 4600 cps at 25‹ C., defined by means of the formula: wherein R is the bisphenyl radical of bisphenol- A (HO-R-OH) and n has an average value not exceeding 0À03, from a liquid epoxy resin having a viscosity of from 7000 to 40,000 cps at 25‹ C., defined by means of Formula (I) wherein n has an average value of from 0À07 to 0À30, is characterized by removing in a first evaporation step the low-boiling substances from said epoxy resin at a pressure of from 0À1 to 1 mmHg and at a temperature of from 165‹ to 200‹ C., and distilling off said diepoxide from the thus treated epoxy resin, in a second evaporation step, at a pressure of from 0À1 to 0À005 mmHg and at a temperature not exceeding 240‹ C., the overall residence time of said epoxy resin in said first and second evaporation steps not exceeding about 100 seconds. The first evaporation may be carried out in a thin falling film evaporator, and the second evaporation in a guided rotating film evaporator with internal condensation. Typically 0À5-1À5% by weight of the feed is evaporated in the first step, and 60-85% by weight of the so treated resin is evaporated in the second step.
Patent GB-1059723-A (GB)
Title: Flashing lamp circuits
Inventor: NOLAN ROGER WILLIAM
IPC: H05B39/09
Filed: 1963-06-27
Abstract: 1,059,723. Visible signalling apparatus. JOSEPH LUCAS (INDUSTRIES) Ltd. June 9, 1964 [June 27, 1963], No. 25573/63. Heading G4F. [Also in Division H3] A flushing lamp circuit comprises a transistor having a lamp in its emitter collector circuit and a temperature sensitive resistor in the base-bias circuit, the arrangement being such that current flow in the emitter-collector circuit heats the resistor to such a temperature that the transistor is cut-off. The resistor then cools down so that the transistor again becomes conductive. The resistor may be heated by incorporating it in the transistor structure, or by the heat developed in a resistor in the collector-emitter circuit.
Patent GB-742761-A (GB)
Title: Process and apparatus for coating strip material and for producing foils of foil-forming material
IPC: B05D3/12
Filed: 1953-09-17
Abstract: <PICT:0742761/IV(a)/1> Films are made by depositing film-forming material 2 on an endless travelling conveyer belt 1 which carries the material under a doctor blade 4 vibrated along its longitudinal axis transversely to the travel of the belt at a frequency of 50 cycles or more per second, and peeling the film from the belt when set.  The blade may be of metal and may be secured in a slotted tubular holder 5 from which it is thermally and electrically insulated by a U-shaped strip 6.  The holder is slidably but non-rotatably mounted in bearings 7 and is caused to vibrate by passing alternating current through the winding 10 of an electromagnet having a core 9 attached to the holder.  The tension in springs 13, 18 attached to the holder is adjusted so that the natural frequency of the doctor blade assembly is that of the electromagnet.  The blade may be heated by passing electric current through it from cable connections 21, and may be insulated from the film material.  Alternatively the blade may be of rubber.  The film-forming material may be thermoplastic and the endless conveyer may be of silicone-bonded fabric, rubber, polytetrafluoroethylene or stainless steel.