baber/WOPTO huggingface dataset:
Patent GB-665735-A (GB)
Title: Improvements in or relating to hot-gas engines
IPC: F02G1/045
Filed: 1946-09-18
Abstract: 665,735. Hot gas engines. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Sept. 18, 1946 [March 5, 1943], No. 28013/46. Class 7(i) In a hot gas engine having means for varying its output while the.total amount of working medium taking part in the cycle remains substantially constant, the means comprises a variable auxiliary finite space forming part of the working space of the engine. As shown the volume of the space between a piston 3 and displacer 2 is variable by altering the position of a piston 19 working in a cylinder 18. The side of the piston remote from the engine cylinder may be subjected to the action of a spring or gas pressure. The piston 19 may be operated by means of the regulator of theengine. The working piston is operated by a connecting rod 6 and the displacer by members 7, 8, 9 and rod 10. The Specification as open to inspection under Sect. 91 describes a modification in which a single chamber or two chambers which may be of different sizes are connectible to the space between the piston and displacer. In the case in which two chambers are used a three-way cock may be arranged to connect either or both of the chambers to the engine space. This subject-matter does not appear in the Specification as accepted.
Patent GB-925305-A (GB)
Title: Bottle
IPC: B65D23/00
Filed: 1961-08-02
Abstract: 925,305. Bottles. F. SPACK. Aug. 2, 1961 [Aug. 3, 1960], No. 28024/61. Class 66. A bottle for liqueurs which may contain fruit comprises a body of glass and a removable bottom 2 of plastics material, the lower end of the bottle having a screw thread and the bottom 2 being similarly threaded. The bottom 2 may be formed by injection moulding and is fitted hot on to the bottle thereby forming a tighter fit on cooling.
Patent GB-428767-A (GB)
Title: Improvements in the dyeing of cellulose acetate artificial silk
IPC: C09B1/32
Filed: 1933-10-11
Abstract: Cellulose acetate, dyeing; dye mixtures.--The dyeing of cellulose acetate artificial silk is effected with the use of a dyestuff preparation, brought into a state of fine dispersion in the usual manner, comprising two or more dyestuffs of the general formula <FORM:0428767/IV/1> (wherein R1 represents H or alkyl and R2 represents aryl of the benzene series) which dye similar shades, at least one having only a weak or moderate affinity for the artificial silk. The dyestuff preparation may be obtained by using a mixture of suitable components for the production of the dyestuffs, or by dissolving the individual dyestuffs in a common solvent and precipitating the mixture in a finely divided state, or by finely grinding a mixture of the dyestuffs, or by adding the finely divided dyestuffs to the same dyebath.  The following examples are specified. (1) 1-Amino-4-anilinoanthraquinone and 1-amino-4-p-toluidinoanthraquinone are dissolved in conc. sulphuric acid at 0--10 DEG  C., the solution is poured upon ice and filtered and the residue is washed until neutral and ground with a dispersing agent to obtain a preparation which dyes the artificial silk an intense blue.  (2) 1-Amino-4-anilinoanthraquinone and 1 - amino - 4 - p - toluidinoanthraquinone are stirred into a soap solution at about 50 DEG  C. and diluted with lukewarm water to obtain a bath in which the artificial silk is dyed an intense blue by treatment for \ba3/4\be hour during which the temperature is raised to 75--80 DEG C. and further treatment for \ba3/4\be hour at this temperature, followed by rinsing and drying.  Specification 219,349, [Class 15 (ii)], is referred to.  The Specification as open to inspection under Sect. 91 comprises also (a) anaadditional example in which a mixture of 1-amino-4-(4<1>-amino) phenylaminoanthraquinone and 1-methylamino-4-(4<1>-oxy) phenyl aminoanthraquinone is used; (b) the use of any mixture of two or more homologues, isomeric or analogous dyestuffs suitable for dyeing the artificial silk, at least one having a poor affinity for the material; the dyestuffs may be, for example, aminoanthraquinones in general or azo dyestuffs and the use of mixtures of certain dialkylaminomonoazo dyestuffs is claimed in Specification 428,841.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1511324-A (GB)
Title: Photographic film cassettes
IPC: G03B17/32
Filed: 1975-07-03
Abstract: 1511324 Film cassette POLAROID CORP 3 July 1975 [5 July 1974] 28112/75 Heading B8M (Part B) A film cassette comprises a chamber for receiving a stack of film units 52, batteryreceiving means which define a location for holding an electric battery 48, and a lightsealing member 94 separating the stack of film units from the battery location. The chamber has a front face including a light-transmitting section 72 through which the foremost film unit can be exposed and having an opening 96 permitting the removal of an exposed film unit from the chamber. The battery-receiving means is formed to provide a further opening, light-sealed from the film unit chamber by the member 94, which permits a battery to be introduced into and removed from the battery location. The battery access opening may be an aperture 44 in the rear wall 45 of the cassette, a gap formed between two parts of the rear wall in spaced planes (Fig. 8, not shown), a slot in an end wall of the cassette (Fig. 9, not shown) or alternatively the battery may be retained by a pocket member attached externally to the cassette rear wall (Figs. 6 and 7, not shown). The film units 52 are preferably of the self-developing type and are biased towards the exposure opening 72 by a framelike spring member 92 which may also form part of the member 94. The cassette may be loaded into the camera by swinging downwardly a portion 32 of the camera housing and inserting the cassette through an opening 26 into a position where it is retained by a spring member 50 having a trap portion 58 for preventing an incorrect insertion by engaging with a flange 60 if the cassette is inserted in an inverted position. Contacts 42 engage terminal areas on the battery 48 when the cassette is in position. The battery preferably comprises a series of thin laminar plates and is wrapped in a non-conducting foil (104), Fig. 5 (not shown).
Patent GB-1299414-A (GB)
Title: A magnetic memory array
IPC: G11C11/04
Filed: 1971-06-16
Abstract: 1299414 Magnetic storage devices GOODYEAR AEROSPACE CORP 16 June 1971 [22 July 1970] 28127/71 Heading H3B A magnetic storage device and its associated conductors have a flexible magnetic keeper comprised of ferrite powder in a vinyl material to reduce fringing of the magnetic switching fields produced by the conductors. Fig. 2 shows such a flexible keeper 10 applied over conductor straps 24 of a plated wire assembly, the plated wires 22 passing through tunnels 20. The ferrite powder is mixed with a vinyl plasticol in the ratio 6:1, applied to a support layer and fired; after removal from the support a flexible backing sheet may be applied and the resulting flexible body may be laid over the assembly as in Fig. 2 and pressed on to it. Adhesives may be used if necessary.
Patent GB-696405-A (GB)
Title: Improvements in or relating to preparations for muscular and nervous disorders and method of preparing the same
IPC: A61K31/70
Filed: 1951-11-30
Abstract: A preparation for oral administration in muscular and nervous disorders comprises glycocyamine (HN=CNH2NHCH2COOH) and at least an equal molar quantity, per mol of glycocyamine, of a methylating agent (acting in vivo) selected from choline, betaine, betaine hydrate or dimethylthetine.  It is preferred to use 1 1/2 to 5 mols of the methylating agent per mol glycocyamine.  The preparation may be in the form of pellets or an aqueous suspension.
Patent GB-487645-A (GB)
Title: Process for rendering textiles water-repellent and products therefrom
IPC: D06M13/322
Filed: 1937-10-16
Abstract: Textiles, particularly of cellulose, cellulose derivative fibrous material and wool, are finished and rendered water-repellent by treatment with aqueous solutions of alpha-halogen ethers or alpha-halogen thioethers of higher fatty alcohols containing at least 10 carbon atoms in the molecule, in the form of quaternary ammonium compounds, together with water-soluble cyanic acid salts, the impregnated textiles being dried and heated.  In examples: (1) a spun rayon fabric is rendered water repellent and resistant to benzine and soap wash by impregnation at 40-50 DEG  C. with an aqueous solution of stearoxymethylpyridinium chloride and potassium cyanate followed by drying and heating to 140 DEG  C.; (2) a velour fabric is rendered water-repellent and creaseproof by impregnation with a similar aqueous solution containing also dimethylolurea and tartaric acid.
Patent GB-1522755-A (GB)
Title: Method of manufacturing a semiconductor device
IPC: H01L21/306
Filed: 1976-07-07
Abstract: 1522755 Semiconductor devices NCR CORP 7 July 1976 [25 July 1975] 28230/76 Heading H1K A method of producing openings for contact regions 18, 20, Fig. 2, for source and drain regions 12.1, 12.1<SP>1</SP> and 12.3, 12.3<SP>1</SP> respectively of IGFETS 12, 12<SP>1</SP> comprises two steps of providing a field oxide layer 24, Fig. 7, on the substrate covering two contact regions, etching the field oxide layer to expose selected areas of the contact regions, Fig. 5 (not shown), forming a plurality of superimposed gate insulating layers 28, 30, 32 on the field oxide layer and on the exposed areas of the contact regions, and etching selectively two gate insulating layers to expose areas of the contact regions that are smaller than the said selected areas. Preferably, the source and the drain regions, the lead conductors 14, 16 and the contact regions 18, 20 are produced by the same diffusion step involving the use of an oxide maze (22), Fig. 3 (not shown). A solution of ammonium fluoride and hydrogen fluoride etching oxide layer 28 at a faster rate as compared to its rate of etching nitride layer 30, is employed to form openings 36, 38, Fig. 9.
Patent GB-957741-A (GB)
Title: Process for purifying raw sulphonates and alcohol sulphates
IPC: C07C303/46
Filed: 1961-08-04
Abstract: Purified sulphonates and alcohol sulphates having anti-rust properties are obtained from the raw mixtures produced by sulphonating sulphonatable materials and neutralizing the product with an alkali metal base in aqueous alcoholic solution, by treating said raw mixtures with at least 2% by weight thereof of a crystalline alkali metal nitrite to form a separable two phase system comprising an organic phase containing the sulphonates or organic sulphates and an aqueous phase containing metal salts, or a three phase system comprising additionally an oil phase, settling at 50 DEG -85 DEG C., separating the phases and distilling and drying the organic phase at 95 DEG -105 DEG C.  For greater purification, the distillation step may be preceded by treating the separated organic phase (to which, if desired, a fluid oil is first added) with 20-25% of its weight of a 5-15% aqueous solution of an alkali metal nitrite while agitating and heating, and again settling at 50 DEG -85 DEG C. and separating the resulting aqueous and organic phases.
Patent GB-644141-A (GB)
Title: Improvements in or relating to switching-devices for use with electrically-driven gramophones
IPC: G11B17/02
Filed: 1947-10-24
Abstract: 644,141. Mechanical switches without quick-action. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Oct. 24, 1947. No. 28432. Convention date, June 28. 1946. [Class 38(v)] [Also in Group XXXVIII] The motor switch of an electricallydriven gramophone is actuated both by a manual control and by a spring-loaded' support for the pick-up, the two controls being linked frictionally so that one may be operated independently of the other. The switch, comprising a bell crank lever 21, Fig. 1, and a fixed contact 8, may be closed either by rotating the manual control 18 anti-clockwise, or by raising the pick-up 1 from the spring-loaded support 2. The support 2 is frictionally coupled to the switch lever 21 by a lever 3 which carries a ball or roller 13, Fig. 2, located in apertures 12 in a pair of plate springs 10. If the manual control is operated, the plates 10 are raised and the ball 13 is forced out of the apertures 12, the arm 3 and support 2 remaining stationary under the weight of the pick-up. The switch now remains closed when the control 18 is released, the pick-up is lifted by automatic playing mechanism, and consequently the lever 3 is turned upwards and the ball 13 again snaps into the apertures 12, so that after playing, when the pick-up is returned to the support 2, the switch is opened.
Patent GB-1379349-A (GB)
Title: Bicyclic compounds their production and their use
IPC: C07C13/32
Filed: 1973-06-15
Abstract: 1379349 Ketones INTERNATIONAL FLAVORS & FRAGRANCES Inc 15 June 1973 [15 June 1972] 28571/73 Heading C2C [Also in Divisions A5 and C5] The invention comprises compounds of the formula where the dashed line is a single or double carbon to carbon bond; X is oxygen; Y is -CHR 9 - or -CHR 10 -CHR 11 -; R 1 , R 2 , R 3  and R 4  are alkyl; R 7 , R 8 , R 9 , R 10  and R 11  are H or alkyl, with the proviso that R 7  or R 8  is alkyl when R 9  is alkyl; R 5  is not present and R 6  is H when the dashed line is a double bond; and R 5  and R 6  are H or together form an oxirane ring when the dashed line is a single bond. The compounds are prepared by treating a compound of the formula with an alkali metal dichromate in the presence of an alkanoic acid.
Patent GB-1019600-A (GB)
Title: Cargo release hooks
IPC: B66C1/34
Filed: 1964-07-10
Abstract: 1,019,600. Hooks. EASTERN ROTOCRAFT CORPORATION. July 10, 1964 [July 25, 1963], No. 28587/64. Heading F2H. [Also in Division F3] A cargo release hook device, to be suspended from a helicopter or crane, has a hook 13 with a boss 13b pivoted on a bolt 14 and with an extension arm 15 extending in the device housing 10 in which the hook is pivoted; the hook is held in the position shown, to support a load by its sling 62, by the arm 15 engaging a roller 18 on one end of a strut 16 which is pivoted at its other end at 17. A toggle linkage 20, 21, connected between the frame and the strut 16, is loaded by a spring 23 (to the over dead-centre position shown) to hold the strut in position until a shaft assembly 19 is rotated to move the link 20 clockwise to raise the strut 16 so that the hook arm 15 is released and the load causes the hook 13 to drop to the release position shown in broken lines. A spring 15a returns the hook to its load-supporting position. A mousing piece 38 pivoted at 39 is urged by a spring 42 to the outward, hook-closing position shown. It is of doubled formation and its nose 38a straddles the narrowed end 13a of the hook adjacent to shoulders 13b. To release the hook, the shaft 19 may be rotated manually by a knob, Fig. 4 (not shown), at its end, or by a solenoid 24 at its other end. It may also be rotated by a lever near the knob end operated manually by a cable from a remote position. The manual and electrical means actuate the shaft through pins in slots with a lost-motion connection so that either can rotate the shaft without disturbing the other. The release solenoid can be operated by a push-button, or by the load becoming otherwise supported so that a spring 45 in the end of the hook arm 15, acting through a lever 46 pivoted at 47 to the arm, moves the arm slightly back from the strut roller 18 to tilt a switch lever 50. A normally-closed switch in the circuit, Fig. 9 (not shown), is opened, when the strut 16 is raised to release the hook, by the roller 18 tripping a lever 53. This protects the solenoid from continued application of power. The hook housing 10 consists of a peripheral spacer 10b sandwiched between two plates of which only the back plate 10a is shown in Fig. 2. To exclude water and dirt, seals 13d together with the hook boss 13b bridge a gap in the spacer 10b and sealing washers, Fig. 5 (not shown), are mounted between the boss and the housing plates. Vertical edge surfaces of these plates in the vicinity of the hook boss guide the load sling 62 off the hook on release. Bolts 12 at the top of the housing attach shackles or may be used to mount the device directly on a support.
Patent GB-484782-A (GB)
Title: Improvements in and relating to electric fuses
IPC: H01H85/06
Filed: 1937-10-20
Abstract: 484,782. Fusible cut - outs. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 20, 1937, No. 28600. Convention date, Oct. 20, 1936. [Class 38 (i)] [Also in Group XXII] A fuse consists of a copper wire protected from oxidation by a coating of cadmium or cadmium alloy that will form an alloy with the copper at about the fusing temperature. The cadmium &c. may be applied over the whole wire, or different parts of the copper may be coated with silver and cadmium or cadmium alloy. Specification 300,160, [Class 38 (i)], is referred to.
Patent GB-788663-A (GB)
Title: A device for avoiding the influence of magnetic interfering fields on arc dischargesin arc rectifiers
IPC: H01J13/20
Filed: 1954-10-05
Abstract: 788,663. Discharge devices. LICENTIA PATENT-VERWALTUNGS-GES. Oct. 5, 1954 [Oct. 13, 1953], No. 28629/54. Class 39(1). A mercury arc rectifier vessel 3 has anodes 6 arranged symmetrically along a circle, each anode being surrounded by a ferromagnetic protecting tube 5 and each protecting tube being surrounded by an asymmetric ferromagnetic body 8 to compensate magnetic disturbing fields. Each body 8 may surround the whole or only a part of the axial length of a protecting tube 5 and may comprise a ferromagnetic cylinder provided with a longitudinal slot which may be filled with a non-magnetic material, or a ferromagnetic cylinder provided with a longitudinal groove. Each ferromagnetic body 8 is connected to and supported by the ferromagnetic vessel 3 in a magnetically insulated manner. Each body 8 can be rotatably adjustable.
Patent GB-1240117-A (GB)
Title: Manufacture of butadiyne
Inventor: JOHNSON DAVID HAROLD
IPC: C07C11/22
Filed: 1968-06-17
Abstract: 1,240,117. 1,3 - Butadiyne. IMPERIAL CHEMICAL INDUSTRIES Ltd. 3 June, 1969 [17 June, 1968], No. 28677/68. Heading C5E. 1,3 - Butadiyne (also called diacetylene) is obtained by treating a cis,cis - 1,4 - dihalogenobutadiene with an acid binding agent, e.g. a hydroxide or alcoholate of sodium or potassium. The preferred feed is cis,cis - 1,4 - dichlorobutadiene, which may be used in admixture with its cis,trans- and trans,trans-isomers.
Patent GB-463272-A (GB)
Title: Improved catalytic material for chemical reactions and process of producing and applying same
IPC: C07C2/22
Filed: 1935-10-17
Abstract: A catalyst comprising a mixture of phosphoric acid and a solid adsorbent is first subjected to a compression treatment such as extrusion or moulding and is then calcined under controlled temperature conditions.  The major constituent is preferably ortho- or pyrophosphoric acid; the adsorbent may be a siliceous material such as kieselguhr or an aluminium silicate. Carbonaceous constituents may be admixed with the catalyst so as to produce a porous structure on calcination.  The calcination temperature may be 180--400 DEG  C., or it may be 400--500 DEG  C. in which case the material is subsequently rehydrated by heating with steam to 240--260 DEG  C.  The catalyst is suitable for the polymerisation of olefines and for the reactions described in Specifications 444,672, 464,752, and 464,753.  It may be regenerated by steaming at 300--350 DEG  C., and then burning off carbonaceous substances with air or a mixture of air and steam, and finally rehydrating with steam at 200--250 DEG  C. A treatment with flue gas may follow the first steaming operation. Specification 437,188 also is referred to.
Patent GB-389763-A (GB)
Title: Improvements in or relating to detector and rectifier circuit arrangements and radioreceivers incorporating the same
IPC: B60T7/18
Filed: 1932-10-14
Abstract: 389,763. Valve detecting circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London. -(Assignees of Farnham, P. O.; 104, Elcock Avenue, Boonton, New Jersey, U.S.A.) Oct. 14, 1932, No. 28775. Convention date, Oct. 14, 1931. [Class 40 (v).] A four-electrode valve combines the dual functions of anode-bend rectifier and diode detector, the output from the latter being used to provide automatic gain control by varying the grid bias of preceding high-frequency stages. The input from the radio-frqeuency amplifier A is applied between control grid and cathode of valve 1 and also between anode and cathode through a condenser 4 which has a large impedance to audio frequencies and small impedance at the carrier frequency. The screen-grid forms the output electrode of an anode-bend detector, while the anode is biased negatively to the cathode by a tapping connection to the control grid biasing resistance 5 through resistance R. Current through R is used to bias the radio-frequency stages and is smoothed by resistance 15 and condenser 16. Effective biasing potential across R can be obtained before the control grid overloads by adjusting the anode bias further negative or reducing the control grid input and increasing anode circuit input' by the tapping on L. Specification 381,847 is referred to.
Patent GB-1382947-A (GB)
Title: Process for preparing a desacetoxycephalosporin compound and 3-nitrooxycepham compounds
IPC: C07D501/22
Filed: 1973-06-18
Abstract: 1382947 Reacting 3-halocepham compounds ELI LILLY & CO 18 June 1973 [30 June 1972 (2)] 28800/73 Heading C2C A process for treating a cepham compound comprises reacting a cepham compound of Formula I with AgQ to obtain a mixture comprising a compound of Formula II a compound of Formula III and a compound of Formula IV wherein R is the residue of an imide derived from a dicarboxylic acid, R 1  is a carboxy protecting group, X is chlorine or bromine and Q is -ONO 2  or wherein R 2  is C 1-4  alkyl or C 5-6  cyclo-alkyl. The compound of Formula III may be converted by heating to 80 # 175 C. into the compound of Formula II. The following treatments are exemplified (1) the reaction between p-nitrobenzyl 7 - phthalimido - 3α - methyl - 3#- chlorocepham-4-carboxylate and silver nitrate to form a mixture of p-nitrobenzyl 7-phthalimido- 3α - methyl - 3# - nitroxycepham - 4 - carboxylate, p - nitrobenzyl 6 - phthalimido - 2amethyl - 2# - nitrooxymethyl penam - 3 - carboxylate and p-nitrobenzyl-7-phthalimido-3- methyl - 3 - cepham - 4 - carboxylate, (ii) modifications of (i) wherein the starting material is the p-methoxy- and not the p-nitro-cepham compound, (iii) p-methoxybenzyl 7-phthalimido- 3α - methyl - 3# - nitroxy cepham-4 - carboxylate prepared in (ii) is converted by heating to methoxybenzyl 7-phthalimido-3-methyl-3-cepham-4-carboxylate, (iv) modification of (i) wherein the starting material is the methyl and not the p-nitrobenzyl cepham compound, (v) methyl 7 - phthaleimido - 3α - methyl - 3#- nitro-oxycepham-4-carboxylate is converted by heating to methyl 7-phthalimido-3-methyl-3- cepham-4-carboxylate, and (vi) modification of (iv) wherein silver acetate is used instead of silver nitrate.