baber/WOPTO huggingface dataset:
Patent GB-1141506-A (GB)
Title: Improvements in or relating to information storage devices
Inventor: DRAKE JOHN ALFRED
IPC: G11B17/02
Filed: 1965-08-11
Abstract: 1,141,506. Magnetic recording and playback. INTERNATIONAL COMPUTERS Ltd. 5 July, 1966 [11 Aug., 1965], No. 34283/65. Heading G5R. An information storage disc 1, comprises a flexible information storage member 4 mounted on a rotatable support disc 2, displacement of the member 4 into contact with one or more transducer heads 31 being caused by the passage of a compressible fluid into a cavity 3 between member 4 and disc 2. In operation, disc 1 is put in position on a boss 10 of a shaft 11 and a shaft 19 carrying a guide member 14 is moved towards the disc until bearing 15 of guide member 14 slidably engages a spigot on boss 10. Guide member 14 contains a thrust member 13 which has an annular recess 28 connecting holes 5, 6 formed in disc 1. Air or other compressible fluid is passed at low pressure through a duct 27, hole 26, recess 25, holes 6, recess 28 and holes 5 into cavity 3 to press a coating of magnetic recording material on member 4 into contact with heads 31. To allow air entering recess 3 to escape member 4 is left free at its inner edge or alternatively vents are formed in member 4 or disc 2. Instead of applying air under pressure to duct 27 air may be sucked into recess 3 through scoops positioned round the periphery of disc 1.
Patent GB-363787-A (GB)
Title: Improvements in manifolding machines
IPC: B41L11/00
Filed: 1930-11-14
Abstract: <PICT:0363787/III/1> <PICT:0363787/III/2> In a machine for manifolding from a script original on to copy sheets moistened with a volatile liquid, such as methylated spirits or ether, the moistening apparatus comprises a carriage 21, Fig. 4, running on a profiled rail 22 and pivotally carrying the moistener 20.  The latter normally rests with its downwardly protruding felt end in a reservoir, but is moved across the copy sheet on the baseplate 3 by two tension cords 34, which are secured to the sides of the carriage 21 and pass over sheaves 36 to a two-part drum 35, on which the cords are wound in opposite directions.  The drum 35 is connected by mutilated spur wheels to the spindle 17, so that when the roller 7 is depressed and the moistener 20 is in its outermost position, the transmission ceases, but upon raising the roller 7, the spur wheels again mesh to cause the carriage to return to its original position.  The moistener 20 is automatically lowered and raised by trip devices on the rail 22; a spring-influenced detent 24 engages an eccentric cam disc 23, Fig. 8, to hold the moistener 20 away from the impression bed 5; as the carriage moves along the rail 22 the detent 24 is released by a pawl 32 carried by an adjustable trip 31, and the moistener 20 applies itself yieldingly to the card until a release pawl 25 engages an abutment 29 on an adjustable trip device 27, whereby the moistener 20 is raised and again locked in position by the detent 24.  During the return movement of the carriage 21, the pawls 26, 32 resiliently yield to the corresponding abutments.  A modification is described in which the depression of the roller, the motion of the moistening apparatus &c. are separately effected by hand, and in this case the moistening apparatus moves on two parallel slide rods and is retracted by a tension member connected to a spring-rotated drum.
Patent GB-1109863-A (GB)
Title: Production of propylene polymers with improved impact resistance
Inventor: STEDEFEDER JOACHIM
IPC: C08F297/06
Filed: 1965-08-11
Abstract: Block copolymers are made by a process in which propylene, ethylene and a vinyl aromatic compound are polymerized in such a way that alternately one of the three monomers is present in an amount which is greater than the amount of each of the other two monomers so that polymers are obtained which contain 0.4-20% by weight of ethylene units and 0.4-20% by weight of vinyl aromatic units in addition to propylene units, the polymerization being carried out at temperatures of 0-150 DEG  C., at pressures of 1-100 atmospheres and in the presence of catalysts which are mixtures of organometallic compounds of metals of Groups I, II and III and compounds of transition metals of Groups IVa to VIa of the Mendeleef Periodic Table.  Vinyl aromatic compounds specified are styrene, vinyl toluenes and chlorostyrenes. The examples describe making block copolymers from propylene, ethylene and styrene, polymerization being carried out with the catalyst mixture either in light naphtha or in finely-divided polypropylene, the catalysts being formed from titanium trichloride and aluminium diethyl chloride.  In certain of the described processes polymerization is carried out in the presence of hydrogen, triphenylbutyl phosphonium bromide or triphenylphosphine oxide as a regulator.
Patent GB-1021581-A (GB)
Title: Bourdon tubes
Inventor: BARYKIN NIKOLAI ALEXANDROVICH
IPC: G01L7/04
Filed: 1963-08-30
Abstract: 1,021,581. Bourdon tubes. NAUCHNO ISSLEDOVATEL'SKY INSTITUTE TEPLOENERGETICHESKOVO PRIBOROSTROENIYA. Aug. 30, 1963, No. 34444/63. Heading G1L. A Bourdon tube of synthetic resin which is curved in a single plane has a cross section which is elongated in a direction perpendicular to the plane, the walls 2, 3 of the tube being of different flexibility. The wall 2 on the outside of the curve is shown as being of thicker section than the inner wall 3, but alternatively the wall 2 may be reinforced with a strip of material of greater stiffness than the synthetic resin of which the rest of the tube is made, e.g. a polyamide.
Patent GB-1011640-A (GB)
Title: Improvements in or relating to racking means for circular knitting machines
Inventor: PEBERDY ROLAND
IPC: D04B15/66
Filed: 1963-09-02
Abstract: 1,011,640. Knitting machines. BENTLEY ENGINEERING CO, Ltd. Aug. 28, 1964 [Sept. 2, 1963], No. 34512/63. Heading D1C. The mechanism for racking each pattern drum of a circular machine comprises a ring cam 20 encircling the needle cylinder 4 of the machine and continuously rotated independently of the needle cylinder. Consequently the pattern drums are continuously racked both during continuous rotary and reciprocatory knitting. For this purpose drive to the needle cylinder is through bevel gearing 7 and 11 which derives its motion from the continuously rotating gear 8 is reciprocating gear 9 through a clutch 10. The ring cam 20 is driven from its continuous rotating gear 8 though gearing 26... 28 shaft 29 and bevel gearing 32, 33. The gear wheel 33 is freely mounted on the spindle 12 for the bevel gear 11 and is secured to a spur gear 34 which drives a ring gear 23 secured to ring cam 20. The gear wheel 28 is secured to a hub 36 on shaft 29 and is capable of being adjusted relatively thereto to enable the cam ring to be adjusted relative to the needle cylinder.
Patent GB-446634-A (GB)
Title: Improvements in and relating to the removal of disturbances in high frequency receiving apparatus
IPC: H03G11/00
Filed: 1935-12-13
Abstract: 446,634. Wireless receiving systems. IDEAL WERKE AKT.-GES. FUR DRAHTLOSE TELEPHONIE, 97, Grosse Leegestrasse, Hohenschonhausen, Berlin. Dec. 13, 1935, No. 34684. Convention date, Dec. 15, 1934. Addition to 442,626. Drawings to Specification. [Class 40 (v)] The parent Specification relates to the production of a blocking bias which is applied to a low frequency amplifier on the occurrence of a disturbance of greater amplitude than that of the signal. The present invention provides a rectifier to prevent the application of positive bias to said amplifier which otherwise occurs during a small part of the blocking impulse and the stage controlled comprises push-pull connected valves so that the effect of the blocking impulse is neutralized in the output circuit.
Patent GB-435725-A (GB)
Title: An improved process and apparatus for the extraction of products in solution by means of solvents
IPC: B01D11/04
Filed: 1934-12-04
Abstract: <PICT:0435725/IV/1> p  In the extraction of substances in solution by means of a solvent in several stages in counter-current an intimate mixture of the solution and solvent is made by injecting an inert gas under pressure and the layers subsequently formed are decanted, the inert gas serving to raise and/or circulate the liquids.  The process may be used for extracting aqueous acetic acid with ethyl acetate; the extraction of glycol chlorhydrin, fatty and aromatic acids and phenols; and the removal of impurities from hydrocarbons by means of liquid ammonia or sulphur dioxide.  The apparatus shown comprises decanting vessels D1--D8, traps C1--C8, degasification chambers H1--H8, emulsifiers E1--E8, a pump P drawing gas from a bell C1 and a return pipe M leading the inert gas back to the bell G.  Aqueous acetic acid from a tank A passes in at one end of the series and solvent from a tank S is introduced at the other end.  The fresh solvent meets in C1 the nearly spent solution constituting the lower layer from the decanter D2, the mixture flowing by gravity into the emulsifier E1 and being forced by the gas pressure to H1 in which the gas separates and the mixture flows to D1 from which the lower layer escapes as spent liquor at L.  The solvent layer containing some acid meets in C2 the lower layer from D3 and passes to the emulsifier E2 and thence by gas pressure to H2 and then to the decanter D2 and so on.  The finished extract from D8 is withdrawn at K.  Specification 307,868, [Class 2 (iii)], is referred to.ALSO:<PICT:0435725/III/1> In the removal of impurities from hydrocarbons by means of liquid ammonia or sulphur dioxide in several stages in counter-current an intimate mixture of the oil and solvent is made by injecting an inert gas under pressure and the layers subsequently formed are decanted, the inert gas serving to raise and/or circulate the liquids.  The apparatus shown comprises decanting vessels D1--D8, traps C1--C8, degasefication chambers H1--H8, emulsifiers E1--E8, a pump P drawing gas from a bell G and a return pipe M leading the inert gas back to the bell G.  Specification 307,868, [Class 81 (i)], is referred to.
Patent GB-895191-A (GB)
Title: Improvements in and relating to sealing caps for bottles, jars, canisters and similar containers
IPC: B65D41/34
Filed: 1960-10-11
Abstract: 895,191. Bottle capsules. RITZENHOFF, H., [trading as SEIDEL KOMM.-GES. GEB.]. Oct. 11, 1960 [Oct. 23, 1959], No. 34862/60. Addition to 814,437. Class 125(3). A sealing cap A has weakened lines 1, 5 defining a tear strip C and merging into a cut-out tongue 4. The strip C is curved inwardly and provided with grooves extending parallel to the base of the cap.
Patent GB-480138-A (GB)
Title: Improvements in bottle-carrying cartons formed of a flexible strip of suitable material and fastening means therefor
IPC: B65D71/64
Filed: 1936-12-18
Abstract: 480,138. Boxes &c. KEITH, C. D. Dec. 18, 1936, No. 34887. Convention date, Dec. 31, 1935. [Class 18] A carrier carton of the kind comprising a strip 1 of flexible material creased to form a base 3, side walls 5, inclined top sections 7, 71 and abutting vertically-disposed handle flaps 9, 9<1> having handle openings 9a, 9b in which are provided two reversely-disposed fastening-members is characterized in that the fastening-members 12, 121 are asymmetrically disposed in relation to the handle openings and are of the shape shown, the members being engaged by a temporary twisting movement of the blank as shown in Fig. 1.
Patent GB-467440-A (GB)
Title: Improvements in or relating to a process for the electrolytic production of magnesium
IPC: C25C3/04
Filed: 1935-12-16
Abstract: 467,440. Electrolytic production of magnesium. THIEMANN, W. H. A. (I. G. Farbenindustrie Akt.-Ges.) Dec. 16, 1935, No. 34927. [Class 41] In producing magnesium by electrolysis of a fused electrolyte, the melt consists of magnesium fluoride and magnesium chloride in proportions corresponding approximately to the eutectic proportion and is electrolyzed at 600-800‹ C. at a voltage below that required for decomposing magnesium chloride e.g. below 6 volts at 800‹ C., whilst magnesium oxide is introduced preferably near the anode, whereby the decomposed magnesium fluoride is continuously regenerated. The proportions may be 70 parts by weight of magnesium chlor ide to 30 parts by weight o magnesium fluoride. The mag nesium salts may be partially replaced or supplemented by chlorides or fluorides of barium, sodium, potassium and lithium. An iron cathode d and carbon anodes b sheathed with porcelain or quartz c are used, partitions e and deflecting plates f directing liberated gases towards the anodes.
Patent GB-197275-A (GB)
Title: Improvements in and relating to hose pipes and like tubing
IPC: B29D23/18
Filed: 1922-12-22
Abstract: 197,275. MacDonald, A. E., and Petro- Flex Tubing Co., Ltd. Dec. 22, 1922. Hose and flexible pipes. - An additional outer armouring of strip material e is wound between the coils of the usual outer armouring b of a hose or like pipe of the kind in which the hose proper a is provided with inter-coiled inner and outer armourings b, c. The strip e, which is preferably of non-oxidizing metal, but may be of raw hide or vulcanized fibre, is curved concavely to fit around and to protect the corrugations formed in the hose by the inner armouring. Fig. 2 shows an alternative section of the strip.
Patent GB-770521-A (GB)
Title: Improvements in the production of benzene carboxylic acids
IPC: C07C51/29
Filed: 1953-12-16
Abstract: Benzene carboxylic acids are prepared from the corresponding benzene compounds with one to three alkyl side chains containing up to three carbon atoms in each side chain or the corresponding oxidation products thereof as fas as they are poorer in oxygen than the corresponding carboxylic acids by a treatment with an aqueous alkaline solution of a hypochlorite, which consists in working in the presence of an emulsifying agent.  Benzene compounds specified are toluene, xylene, ethylbenzene, diethylbenzene, triethylbenzene, phenyl ethyl alcohol, phenyl acetaldehyde, acetophenone, p-diacetylbenzene and p-diisopropylbenzene.  Crude mixtures obtainable by the oxidation of such compounds by air may also be used.  Emulsifying agents mentioned are sulphonates of long-chain paraffin hydrocarbons or alkylated naphthalenes.  In effecting the oxidation, liquid benzene compounds are emulsified in hypochlorite solution, or in aqueous alkali such as the hydroxides or carbonates of sodium or potassium or calcium hydroxide when chlorine is led into the emulsion.  Solid benzene compounds are dissolved in a solvent such as benzene or cyclohexane before emulsification.  The emulsion is vigorously mixed during the oxidation by stirring or acoustic irradiation.  In examples, acetophenone (1), or a benzene solution of p-diacetylbenzene (2), is oxidized with sodium hypochlorite in aqueous caustic soda in the presence of a paraffin sulphonate prepated by sulphochlorination of high molecular weight paraffin hydrocarbons of the Fischer-Tropsch synthesis as emulsifier to yield benzoic acid or terephthalic acid respectively; (3) p-xylene, or (4) p-diisopropylbenzene, which has been subjected to a preliminary oxidation with air is emulsified in aqueous caustic soda in the presence of the emulsifier of Examples (1) and (2) and chlorine is then led in to give terephthalic acid.
Patent GB-1395545-A (GB)
Title: Equalizers
IPC: H03H11/12
Filed: 1972-07-27
Abstract: 1395545 Active equalizer circuits WESTERN ELECTRIC CO Inc 27 July 1972 [29 July 1971] 35067/71 Heading H3T An adjustable loss equalizer comprises amplifiers 11, 12, 13, 14, e.g. beam leaded amplifiers, interconnected as shown in Fig. 3, by variable resistance elements R1, R4, R2, R6. These elements may be single resistors or T-pads and may be formed as thin film resistors with sliding switches, Fig. 5 (not shown).
Patent GB-1470421-A (GB)
Title: Filling casting moulds
IPC: B22D39/06
Filed: 1974-08-08
Abstract: 1470421 Casting processes INSTITUTE PO METALOZNANIE I TECHNOLOGIA NA METALITE 8 Aug 1974 [16 Aug 1973] 35107/74 Heading B3F A method of controlling the rate of transfer of molten material from a crucible 1 to a casting mould 2 in a casting arrangement, in which the molten material is transferred under the action of a gas pressure difference between the gas pressure acting in the apparatus at the crucible and the gas pressure acting in the apparatus at the mould, comprises comparing the rate of change of one of the pressures, during casting, with a predetermined reference representing the desired rate of change and varying the other said pressure in dependence upon the comparison so as to cause the actual variation of the rate of change to tend to correspond substantially to the desired variation. The rate of change of said one pressure may be an increase in the pressure in a chamber 1 containing the melt crucible or a reduction in pressure in the mould chamber 2. As described, the mould is filled at a substantially constant delivery rate. As the hermatically closed chamber 2 is filled the pressure P2 in the chamber increases, Fig. 1a until the chamber is full and then remains constant at a time T3. To maintain the desired rate of change, the pressure P1 in the melt crucible is controlled as shown in Fig. 1c, the changes at times T1 and T2 being caused by the shape of the mould. Fig. 1b shows the difference in pressure #P which equals P2-P1 and the rates of change dP2/dt, d#P/dt, and dP1/dt is shown by the dotted lines. The steps at times T1, T2 being again caused by the shape of the moulds and, in the apparatus of the invention, are used to produce signals for actuating mechanism controlling the process. The apparatus consists of the crucible 1 for the molten metal connected to a manometer 4, and a chamber 2 containing the mould and connected to a manometer 3. The manometers are connected to a measuring device to produce signals P2, P1 and #P which are fed to a differentiator 6. A comparator 7 compares at least one of the signals with at least one reference signal from a source 8, and the signal from the comparator is fed through an amplifier to a controller 10 for actuating mechanism 11 or 12.
Patent GB-301870-A (GB)
IPC: F16F9/14
Filed: 1928-11-29
Abstract: 301,870. Houdaille, M. Dec. 7, 1927, [Convention date]. Fluid-friction vibrationdampers of the oscillating or of the cylinder-and-piston type applied to the steering- gear of motor vehicles are constructed with conduits of variable cross-section for the circulation of liquid, the movable member being adapted to control the area of the conduits. The areas of the conduits increase gradually as the movable member is displaced on either side of the central position. In the construction shown in Fig. 1, two movable vanes 1 oscillate in semi-cylindrical chambers formed by a casing 3 and partitions 2. The conduits 8 are formed by tapering grooves in the circumference as shown or in the ends of the casing. The chambers may in addition or alternatively be connected in pairs by small passages 6, 6<a>, controlled by a central spindle, the end of which is of oppositely elliptical section as shown in dotted lines.
Patent GB-1160548-A (GB)
Title: Punched Card Selecting, Analysing, and Recording Apparatus
Inventor: NORTH ALBER LESLIE
IPC: G06F3/08
Filed: 1965-08-17
Abstract: 1,160,548. Statistical apparatus. A. L. NORTH. 12 Aug., 1966 [17 Aug., 1965], No. 35286/65. Heading G4M. All index positions of a punched card are sensed simultaneously by an array of photocells and the presence of any one of a plurality of predetermined hole patterns on the card is detected by gating circuits which receive the outputs of the photo-cells and the outputs from a set of bi-stable circuits which are preset to states corresponding to the complements of the patterns sought. Each gating circuit is connected to a respective counter which registers the number of cards bearing the corresponding selected pattern of holes. A set of push buttons is provided for entering the desired patterns in the bi-stable circuits and for selecting non- destructive read-out from any one of the counters.
Patent GB-772514-A (GB)
Title: Improvements in or relating to processes for the production of dry rectifier elements
IPC: H01L21/06
Filed: 1954-12-06
Abstract: 772,514. Semi-conductors. SIEMENSSCHUCKERTWERKE AKT. - GES. Dec. 6, 1954 [Dec. 30, 1953], No. 35316/54. Class 37. Dry plate polygon-shaped rectifier elements, e.g. square-shaped elements 2, Fig. 2, to be stamped from rectifier sheet material 1 have adjacent sides parallel and may have rounded corners and are entirely surrounded by sheet material 1 as at 3. The surrounding portion 3 ensures that each edge of each rectifier element is removed in the same way and is accordingly subjected to the same cutting stress. The sheet material 1 may consist of nickel-coated aluminium 1a, Fig. 1, (base electrode) with superposed semi-conducting and counter-electrode coatings 1b, 1c.
Patent GB-1476163-A (GB)
Title: Organopolysiloxane compositions
IPC: C08K5/3477
Filed: 1974-08-12
Abstract: 1476163 Inhibited curable polysiloxane compositions GENERAL ELECTRIC CO 12 Aug 1974 [21 Nov 1973] 35372/74 Heading C3T An inhibited curable composition comprises (a) an unsaturated polysiloxane of average unit formula R a R<SP>1</SP> b SiO 4-a-b/2 , (b) a hydrogen polysiloxane of average unit formula R a H b SiO 4-a-b/2  wherein each R is a monovalent hydrocarbon, halohydrocarbon or cyanoalkyl radical, R<SP>1</SP> is an aliphatically unsaturated hydrocarbon radical, a is 0-3, b is 0À005-2 and a+b is 0À8-3, (c) sufficient Pt catalyst to cause reaction of (a) with (b), and (d) an inhibiting amount of an unsaturated isocyanurate wherein each R<SP>11</SP> is H or an alkyl, aryl, aralkyl, heteroaryl or C 1-6  alkenyl radical, at least one being a C 1-6  alkenyl radical. In Examples 1-7 Components A are prepared containing a vinyl-terminated polydimethylsiloxane gum or oil, the gum being mixed with a copolymer of Me 3 SiO 0À5  and SiO 2  units with 7 % MeViSiO units, ground quartz filler, a pigment or C black, a Pt catalyst and 0À05-1% of triallyl isocyanurate; Components B are prepared from the same gum or oil, mixed with a copolymer of and SiO 2  units or of Me 2 HSiO 0 . 5 , MeHSiO and Me 2 SiO units, and ground quartz; A and B are mixed in 10 : 1 to 1 : 1 ratio to give compositions stable at room temperature but curable at 100‹ C. In Example 9 diallyl, diallyl ethyl and dipropyl allyl isocyanurates are used. In Example 8 a simple mixture of (MeViSiO) 4  and (MeHSiO) 4  (I : 1 by weight) with H 2 PtCl 6  and triallyl isocyanurate is prepared.
Patent GB-955314-A (GB)
Title: Improvements in or relating to methods of dyeing plastics foils or sheets
IPC: B41M1/30
Filed: 1960-10-17
Abstract: Foils or sheets of synthetic plastic materials are coloured by applying a thin layer of colouring means in solid form or in the form of a paste to the surface of the sheet and then heating at 100 DEG -200 DEG C. in a cylinder drying machine or in an infrared drier, the temperature being chosen so that it is below the softening or decomposition point of the plastic and below the volatilization or decomposition point of the colouring means.  When the paste contains small quantities of volatile solvents or dispersing means which boil at temperatures below 100 DEG C., the latter are removed by evaporation before the sheets are subjected to the heat treatment at 100 DEG -200 DEG C., and any other solvents or dispersing agents present in the paste must not be volatile at the temperature at which the heat treatment is applied.  The process is particularly applicable to sheets or foils of polyesters, butadiene-styrene copolymers, polyethylene and polypropylene, and also to glass fibre reinforced resin sheets.  Dyestuffs or pigments may be applied in pulverised condition, or sublimable dyestuffs may be vaporized and condensed in vacuo on to the surface of the sheets. Alternatively, the dyestuff layer may be applied from a carrier, or by roller or block printing, and the process is applicable to local coloration in two or more colours.