baber/WOPTO huggingface dataset:
Patent GB-1096243-A (GB)
Title: Improvements in and relating to switching networks for use in telecommunication exchanges
IPC: H04Q3/52
Filed: 1964-12-21
Abstract: 1,096,243. Automatic exchange systems. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Dec. 21, 1964 [Dec. 24, 1963], No. 51822/64. Heading H4K. In a multistage switching network utilizing transistors as the cross-point switches in the speech wires, the transistors are initially operated and then held by means of bi-stable elements located in the c-wires. PNP, NPN or photo transistors (Fig. 2, not shown) may be used and the bi-stable elements may be PNPN transistors or the combination of a phototransistor and light source (Fig. 3, not shown). In the latter case the light source, which is in series with the photo transistor in the c-wire, is also used for operating the photo-transistors of the speech cross-points. Operation.-A marker closes switch S in the c-wire of the selected path and reduces the potential on terminals 1 to 4 (of stages I to IV) from - 80 to - 60 v. PNPN transistors trc 1  to trc 4  in that order trigger-on successively and then hold even when the input potential restores to - 80 v. The conduction of the c-wire transistors causes the speech wire NPN transistors tra and trb to energize. The latter are held from the c-wire until the connection is released by opening S.
Patent GB-1513759-A (GB)
Title: Bottle stopper
IPC: B65D45/00
Filed: 1975-12-18
Abstract: 1513759 Container closures METALLKAPSELFABRIK LOOS & CO GmbH 18 Dec 1975 [30 Aug 1975] 51837/75 Heading B8T A stopper has a plastics body for sealing into the opening of a bottle, wherein the body has a flat upper outer surface on which is mounted a contiguous flat layer of aluminium foil.
Patent GB-1249985-A (GB)
Title: Hardness testing apparatus
Inventor: HOWE CHARLES WILKINSON BREEKS
IPC: G01N3/02
Filed: 1967-11-14
Abstract: 1,249,985. Testing hardness of cigarettes and the like. CARRERAS Ltd. Feb. 13, 1969 [Nov. 14, 1968J, No. 51865/67. Heading G1S. Apparatus for testing the hardness of articles such as cigarettes or filter rods comprises a gravity feed hopper 14 and rollers 15, 37 which pass cigarettes one at a time beneath a weighted probe 2. The drum 15 is step by step rotated by a pneumatic ram 17, lever 18 and a one way clutch 20 and a second pneumatic ram 11 moves a transducer 1 and the probe 2 downwardly at the predetermined pressure. The transducer has a light 3, Fig. 2, which is beamed through a lens 4 to a fixed grating 5 in such a way that the small movement of the probe which is directly connected to a second grating 6 is dependent upon the amount of deformation of the article achieved by the probe and interrupts the light path and generates a pulse signal in a photo-cell 7 which signal is transferred to a counter 9. An electrical timer is used to control the sequence of operation and a switch 10 at the end of the probe ensures that the hardness count begins only after the surface of the article has been contacted.
Patent GB-1107687-A (GB)
Title: Adducts of polygalactomannan gums and process for preparing same
Inventor: NORDGREN ROBERT
IPC: C08B37/14
Filed: 1966-11-11
Abstract: Polygalactomannan-acrylamide adducts are made by reaction of a polygalactomannan with acrylamide, preferably at 25-100 DEG  C., in water and/or an organic solvent, e.g. isobutanol or t-butanol, in the presence of an alkaline catalyst, e.g. an alkali metal, alkaline earth metal or ammonium hydroxide, or trimethyl benzyl ammonium hydroxide, at up to 30 p.s.i. pressure. Specified polygalactomannans are guar and locust bean gum.  The adducts may have a D.S. in the range 0.1-3.0, and are readily dispersible in water to yield clear sols., which are useful as flocculants (see Division C1).ALSO:Polygalactomannan-acrylamide adducts in the form of aqueous sols may be used to flocculate slimes of bentonite or kaolin.
Patent GB-1179247-A (GB)
Title: Silicon-Containing POlymers
IPC: C08G77/54
Filed: 1966-11-24
Abstract: 1,179,247. Coated sheet materials. MONSANTO CO. 24 Nov., 1966 [24 Nov., 1965], No. 52678/66. Heading B2E. [Also in Divisions C3 and D1] Surfaces are coated with silicon-containing polymers having the general formula: where R<SP>1</SP> and R<SP>2</SP> are fluorine or organic or silyl groups which may be linked to the Si atom via an oxygen atom, R<SP>3</SP> is polyvalent and is silyl or an organic group which may be substituted, n is 1 to 10, m is at least 2 and p is the degree of polymerisation. Specified surfaces are plastics, wood, glass, metals, rubber, paper, textiles and leather. The polymers may be applied in solution or prepared in situ on the surface (see Division C3). Heating the polymers on a surface such as metal foil or glass fibre to a temperature of 300‹ to 600‹C cross-links the polymers and improves adhesion. The polymers may contain additives such as powdered wood, asbestos, glass fibres, metal fibres and pigments.
Patent GB-1240060-A (GB)
Title: Apparatus for drilling and filling brush bodies
IPC: A46B3/22
Filed: 1969-10-30
Abstract: 1,240,060. Brush drilling machines. GOTTWEB EBSER MASOHINENTABRIK K.G. 30 Oct., 1969 [15 Nov., 1968], No. 53117/69. Heading B3C. [Also in Division A4] An apparatus for boring and filling brush bodies comprises a number of working positions a, b and at least one pair of boring and filling tools, the boring tool B being rotatably mounted about an axis D which, together with the filling tool M is capable of moving in a longitudinal direction with respect to the work positions, the boring tool being rotatable through 180 degrees in a direction opposite to that of the longitudinal movement. When only two working positions are employed the pivotal axis is situated directly above the axis of the filling tool and the boring tool is connected to the axis by an arm S having a length which is equal to the distance between the two working positions. In operation, the filling tool and the axis undergo longitudinal movements between the working positions and during or after each movement the boring tool is rotated through 180 degrees in a direction opposite to that of the longitudinal movement. In a further embodiment (Figs. 4-6, not shown), three working positions are used and the length of the pivotal arm corresponds to one and a half times the distance between adjacent working positions. During a working cycle the filling tool and axis execute two short thrusts corresponding to the distance between two adjacent working positions and one long thrust corresponding to twice the distance between adjacent working positions. The boring tool undergoes rotation through 180 degrees after or during each large thrust and every small thrust preceding the large thrust. The boring tool does not undergo rotation after or during every small thrust succeeding the large thrust.
Patent GB-1198298-A (GB)
Title: Function Signal Generator
Inventor: PAULUS ERWIN
IPC: G10L19/08
Filed: 1967-11-27
Abstract: 1,198,298. Vocoders. INTERNATIONAL BUSINESS MACHINES CORP. 27 Nov., 1967 [25 Nov.. 19661, No.53755/67. Heading H4R. In a function signal generator to generate excitation function signals to feed to the respective spectrum channels of a vocoder synthesizer a filter circuit is repeatedly fed with pulses derived from the excitation pulse and the resulting repetitive primary function signal from the filter is sampled at successively different points on succeeding repeats of the primary function signal in order to generate a lower frequency replica of the primary function signal. The period between samples is different in the different spectrum channels so that the signals generated consists of components lying in a range of frequencies whose centre frequency is appropriate to the respective spectrum channel, and whose bandwidths are the same for all channels. Fig. 1 shows a vocoder synthesizer in which excitation function signals are generated at the appropriate frequencies, modulated by the aggregate function signals SKS in modulators M1 to Mn, smoothed in low pass filters SM1 to SMn and combined to produce the synthesized speech at SO. The excitation function signals are generated by feeding excitation pulses from APL via "OR" gate OT to filter BF to produce a damped oscillation at a high frequency. The excitation pulse is also applied to delay unit VZ1, having a delay KNdt, and delay unit VZ2, having a delay Ndt, which are interconnected via "AND" gate UT and "OR" gate OT so that each excitation pulse is recirculated and applied to the filter input K times by recirculation through delay VZ2 until "AND" gate UT is inhibited by the inverted output of delay VZ1. Each resulting output from filter BF consequent upon each appearance of the pulse to the filter input is sampled N times by the switch SM and the samples are multipled on to the fixed contacts of switches S1 to Sn so that a complete series of samples making up one complete output signal sequence from filter BF is continuously available around the fixed contacts of switches S1 to Sn. The contact arms of switches S1 to Sn are then driven to read off the sequence of samples at such a speed, different for each spectrum channel, as to provide an excitation signal appropriate in frequency for the respective spectrum channel. The switches may be electronic rather than mechanical.
Patent GB-1106939-A (GB)
Title: Use of antimicrobial preparations
Inventor: KLESPER HERBERT
IPC: A01N37/10
Filed: 1965-12-20
Abstract: Antimicrobial materials are prepared by heating paraformaldehyde in a water-miscible solvent at 90-150 DEG  C. with either a carboxylic acid of formula R1ArCOOH, where Ar is a mononuclear or polynuclear aromatic radical and R1 stands for one or more alkyl, substituted alkyl, hydroxyl, halogen, alkoxy, acylamino, sulphonylamino, formyl, cyano, carboxyl, N-alkyl-carbonamide, N,N-dialkyl carbonamide, carbalkoxy, halogen substituted carbalkoxy, aryl-carbonyl or alkyl mercapto substituents or a carboxylic acid of the formula R2-A-COOH, where A is a saturated or unsaturated aliphatic or cycloaliphatic radical and R2 stands for one or more halogen, hydroxy, cyano, sulphonamino, carboxy, N-alkylcarbonamide, N,N - dialkyl - carbonamide, carbalkoxy, halogen substituted carbalkoxy, alkylcarbonyl, carboxyalkyl - disulphide, carboxy-alkyl - mercapto, cyanoalkyl - mercapto or alkyl mercapto substituents.  0.5 to 3 moles of HCHO may be used per mole of acid and the solvent may be organic. In Example 1, antimicrobial products are obtained by reacting paraformaldehyde with acid(s) selected from the following, in PrOCH2CH2OH solution, at a temperature in the range 120-140 DEG  C. for 15 minutes: 2 - chlorobenzoic, 5 - chlorosalicylic, 4,6 - dichlorosalicylic, 2 - hydroxy - 1 - naphthoic, azelaic and camphoric acids, and monoethyl 3,6-dichlorophthalate.ALSO:In Example 2, to a drilling oil consisting of a vegetable oil and oleyl alcohol polyglycol ether, is added as antimicrobial agent a 2-chloro-benzoic acid/paraformaldehyde reaction product.ALSO:In Example 1, antimicrobial products are obtained by reacting paraformaldehyde with acid(s) selected from the following, in PrOCH2 -CH2OH solution, at a temperature in the range 120-140 degrees for 15 minutes: 2-chlorobenzoic, 5-chlorosalicylic, 4,6-dichlorosalicylic, 2-hydroxy -1-naphthoic, azeloic and camphoric acids, and monoethyl 3,6-dichlorophthalate.ALSO:Materials susceptible to microbial contamination are treated with the reaction products obtained by heating specified carboxylic acids with paraformaldehyde at 90-150 DEG C in a water-miscible solvent.  In Example 1, wool, cotton, polyacrylonitrile and polyamide fabrics are drycleaned with perchloroethylene or heavy benzine containing sodium paraffin sulphonate and nonylphenol-hexaethylene glycol ether, as well as one of said reaction products wherein the carboxylic acid was 2-chlorobenzoic, 5-chlorosalicyclic, 4,6-dichlorosalicylic, 2-hydroxy-1-napthoic, a zelaic or camphoric acid, or monoethyl 3,6-dichlorophthalate.
Patent GB-1244686-A (GB)
Title: A frequency modulator
IPC: H03C3/00
Filed: 1969-11-04
Abstract: 1,244,686. Radio signalling; frequency modulation. C.I.T.-COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS. 4 Nov., 1969 [5 Nov., 1968; 18 Nov., 1968], No. 53980/69. Headings H3R and H4L. In a frequency-modulating system an auxiliary frequency-modulator 11 modulates a relatively low-frequency carrier with an audio signal from microphone 12 supplied via a variable gain amplifier 13 a five-stage binary counter 15 advancing one step for each cycle of the modulated signal. The main carrier wave from a frequency synthesizer 19 is supplied via a chain of delay circuits 17, which may be selectively short-circuited by switches a to e to the output circuit 18, the switches being operated in sequential combinations via a decoder 16 in accordance with the setting of the counter. By this means the phase of the main carrier is continuously rotated in steps through 360 degrees at a variable rate dependent upon the modulated auxiliary carrier providing a resultant frequency-modulated main carrier. The frequency of the main carrier is selected by a digital device 20 which also controls a logic circuit 14 providing the counter with a reference value at which the counter starts, this value being dependent upon the frequency selected for the carrier. This ensures that for each complete cycle of the switching of the delay circuits 17 the carrier phase rotates substantially through 360 degrees for each selected carrier frequency. The residual phase error increases towards the upper end of the range and this error may be decreased by increasing the number of phase steps. With increase of carrier frequency the modulation index also increases and this is corrected by supplying the digital setting of device 20 to a digital-to-analogue converter 21 which controls the gain of amplifier 13. In a modification, Fig. 2 (not shown), the output of the generator 19 is supplied to a frequency discriminator which controls the gain of amplifier 13 in accordance with the carrier selected and through an analogue-todigital converter controls the logic circuit 14.
Patent GB-540320-A (GB)
Abstract: 540,320. Calculating-apparatus. BALL, W., KEEN, G. P., and BRITISH ADDING & CALCULATING MACHINES, Ltd. April 29, 1939, No. 7766/40. Divided out of 540,283. [Class 106 (i)] In a machine with printing mechanism each type member is connected to a rockable control member having a cam slot with which engages an abutment on an oscillatable member associated with the differential actuator. The invention is shown applied to a machine with a differential actuating mechanism as described in Specification 540,283 and comprising rack portions 13, 14 connected by a pinion 15 mounted on an extension of a totalizer actuating rack 12. The rack 14 is normally stationary and reciprocatory movement is imparted to the pinion 15 and racks 12, 13 through a spring controlled link 32 having a lost motion slot engaging a pin or abutment 34 on a pivoted operating bell crank 35. The arms of the bell crank are controlled by a helical spring 45 to press a roller 41 on one of the arms into engagement with a corresponding cam 42 on the main shaft. The main arm of the bell crank carries a pin 114A which engages a cam slot 115 in a quadrant arm 116 mounted on a bush 118 secured to a partition plate 10 and controlled by a helical spring 119. An arm 120 is adjustably secured to the quadrant arm 116 by means of a set screw and has pivoted thereto a link 121 carrying a type bar 114. The ends of the slot 115 are so shaped as to permit additional movement to the actuating rack 12 without affecting the type bar when a transfer operation is to be effected. Specifications 263,505, 288,672, [both in Class 106 (i)], 343,448, 343,473, 343,474, 343,475, 343,476 and 352,958 also are referred to.
Patent GB-1224250-A (GB)
Title: Improvements in or relating to tape transport apparatus
IPC: G11B15/295
Filed: 1968-11-15
Abstract: 1,224,250. Feeding record tapes. NEWEL] INDUSTRIES Inc. 15 Nov., 1968 [16 Nov 1967], No. 54292/68. Heading G5R. In a tape transport of the type in which the tape 19 is wound to form supply and take-up rolls 21, 22 urged, e.g. by a spring 57, into driving contact with a .resiliently.-surfaced capstan, resistance to the advancing and retreating movements of the tape rolls relative to the capstan is developed by viscous means, so that the compressive force between the take-up roll and the capstan is greater than that between the supply roll and the capstan. As shown, the tape roll spindles 16, 17 are .mounted near the peripheries of rotatable discs 44, 46, and a viscous material is deposited between the discs 44, 46 and their supporting platforms (51, Fig. 2). A motor 28 drives the capstan through resilient loops 36 on the motor shaft embracing posts 37 on the capstan, so that minor speed fluctuations are absorbed. Reference has been directed by the Comptroller to Specification 1,172,269.
Patent GB-1530000-A (GB)
Title: Safety devices
IPC: G08G5/00
Filed: 1977-03-24
Abstract: 1530000 Radar reflectors; aerials R M PATEL 24 March 1977 [31 Dec 1976] 54393/76 Heading H4A [Also in Division G4] A helium-filled balloon carrying a radar reflector is used as a rescue aid, being tethered to e.g. a person or lifeboat by a line which may also act as an aerial for a radio transmitter.
Patent GB-1201149-A (GB)
Title: Particle board manufacture
Inventor: KNIGHT KENNETH
IPC: C09J161/06
Filed: 1966-12-07
Abstract: 1,201,149. Particle board; resole resins. UNILEVER Ltd. 4 Dec., 1967 [7 Dec., 1966], No. 54757/66. Headings C3N and C3R. Particle board is made by contacting particulate material with (A) an aqueous alkaline solution of a phenolic resin containing (B) 1-8 wt. per cent alkali metal hydroxide and an aqueous accelerator solution containing (C) 2-12% alkali metal carbonate or bicarbonate; and (D) 3À6-8% active formaldehyde. All percentages are by weight based on resin. The weight ratio of (C) to (B) is from 1 to 6. The alkali metal may be Li, Na, or K. The phenolic resin is a resole type resin and contains 3-40%, based on weight of the phenol, of a polyfunctional phenol more reactive with HCHO than phenol; it may be formed from formaldehyde and phenol and cresol, resorcinol, and/or xylenol. The accelerator solution may be sprayed on the particulate material before, at the same time as, in combination with, or after the resin solution; or the accelerator may be formed from absorption of C0 2 , either naturally present in the atmosphere or supplied during spraying. (D) may be aqueous formaldehyde or solid polyoxymethylene. The particulate material may be wood chips, sawdust, flax shives, or exfoliated vermiculite. The coated particles should have moisture content of 9-12% w./w. The particulate material may first be sprayed with a dispersion of wax in water. After the resin and aecelerator are sprayed, the material may be prepressed at room temperature at 3 kg./cm.<SP>2</SP>, oversprayed with 30 g./m. of water, and hotpressed at 165-210‹ C. at 14 kg./cm.<SP>3</SP>.
Patent GB-1150638-A (GB)
Title: Continous Filament Synthetic Yarns
Inventor: DAVIES STANLEY
IPC: D02J1/22
Filed: 1966-12-08
Abstract: 1,150,638. Continuous filament synthetic yarns. IMPERIAL CHEMICAL INDUSTRIES Ltd. 17 Nov., 1967 [8 Dec., 1966], No. 55062/66. Heading B5B. [Also in Division D1] Continuous filament synthetic polymer yarns having properties such as thickness or dyeaffinity which vary along the length of the yarn are produced by applying a yarn plasticizer to the continuous undrawn yarns in an amount varying along the length of the yarn in a programmed manner according to a pseudorandom pattern and subsequently drawing the yarn. The plasticizer may be applied non- uniformly before or after uniform application of a yarn finish, and may be in admixture with other materials such as dye modifying agents and/or plasticizer fixing agents. Nylon and polyethylene terephthalate are specified as yarn materials. Water and glycerol are mentioned as suitable plasticizers.
Patent GB-1285595-A (GB)
Title: Installation for batch-wise mixing
IPC: B01F13/10
Filed: 1969-11-11
Abstract: 1285595 Mixing plant BADISCHE MASCHINENFABRIK GmbH 11 Nov 1969 [12 Nov 1968] 55137/69 Heading Bl C Mixing plant for foundry sand comprises vessels 3, 4 with metering devices for the solid materials, a water supply pipe 8, a batch premixer 1 with stirring tools and a batch remixer 2 with mullers and a fan 22 for cooling air, which discharges to a surge hopper 13 and belt conveyor 14.
Patent GB-1410073-A (GB)
Title: Optical glass
IPC: C03C3/155
Filed: 1972-11-29
Abstract: 1410073 Optical glass NIPPON KOGAKU KK 29 Nov 1972 [6 Dec 1971] 55151/72 Heading C1M A thorium-free optical glass comprises, in weight percent where RO is at least one divalent metal oxide, and the balance, if any, consists of other compatible constituents. The divalent oxide RO may be MgO, CaO, SrO, BaO, ZnO, PbO and/or CdO. The glass may also comprise 0-12 ZrO 2 , 0-25 Nb 2 O 5 , 0-12 Y 2 O 3 , 0-10 TiO 2 , 0-30 WO 3  and/or 0-12 In 2 O 3 . The ingredients may be fused in a platinum crucible at 1300-1400‹ C. and the glass may have a refractive index n d  of 1À66-1À79, and an AbbÚ number, V of 42-57.
Patent GB-1336315-A (GB)
Title: Process for the optimum absorption or elementary sulphur from natural gas by using mineral oil or similar liquid hydrocarbons
IPC: C10L3/10
Filed: 1970-11-23
Abstract: 1336315 Purifying natural gas WINTERSHALL AG 23 Nov 1970 [28 Nov 1969] 55639/70 Heading C5E Natural gas is purified of elementary sulphur in a borehole by delivering a liquid hydrocarbon to the bottom of the bore in amounts ranging from 1 litre of hydrocarbon to from 4 to 20 nm. of natural gas. The hydrocarbon should have a viscosity ranging from 2 to 200 cps. at 20 C., and a vapour pressure of up to 3 x 10<SP>-1</SP> mmHg. at 20 C. Examples are diesel oil, spindle oil, light machine oil, benzene, toluene and xylene, and a surface active agent, e.g. a fatty acid amine, may be added. The oil &c. may be regenerated and recycled. A circular flow of gas/liquid up the bore is stated to be achieved. The ratio of oil to natural gas is increased from 1 : 20 (litres per mn<SP>3</SP>.) for gas having a sulphur content up to 0À1 gm. per nm<SP>3</SP>., to 1 : 4 for gas having above 2 and up to 5 gms per nm<SP>3</SP>.
Patent GB-1111313-A (GB)
Title: Salts of diazoniapentacene diones,azonia-anthracene diones and diazonia pentaphene diones
Inventor: FIELDS DONALD LEE
IPC: G03C5/30
Filed: 1965-05-20
Abstract: The invention comprises (A) salts of 4a,11a-diazoniapentacene - 6,13 - dione or 4a,7a-diazoniapentacene-6,13-dione of the formula <FORM:1111313/C2/1> wherein X(-) is an anion and the biradical A has the formula <FORM:1111313/C2/2> (B) salts of 4a-azoniaanthracene-5,8- or -5,6-diones of the formulae <FORM:1111313/C2/3> <FORM:1111313/C2/4> wherein X(-) is an anion and each R4 is H, alkyl or aryl with the limitation in Formula II that if one R4 is t-butyl or isopropyl the other is H; and (C) salts of 4a,8a-diazoniapentaphene-6,7-dione of the formula <FORM:1111313/C2/5> wherein X(-) is an anion.  The salts of Formula I may be obtained by cyclising, in the presence of a cyclodehydrating agent, a diester formed from a C1-4 aliphatic carboxylic acid and a 2,5-or 2,6-bis [11-azonia-21-(111, 311-dioxolan-211-yl) benzyl] hydroquinone salt. The cyclodehydration reaction may be effected at a temperature of 15 DEG  C. up to the thermal decomposition temperature of the desired product, optionally with the cyclodehydrating agent in solution in water or a C1- 4 alkanoic acid.  The compounds of Formulae II, III and IV may be obtained by oxidizing the corresponding diol (which itself may be obtained by the process described in Specification 1,111,311).  The oxidation reaction may be effected in an inert solvent, suitable oxidizing agents being ferric chloride, cupric chloride, nitric acid and benzoquinone. The anionic component of the above salts may be exchanged, e.g. by treating the salt with an acid or salt yielding the desired anion.