baber/WOPTO huggingface dataset:
Patent GB-1497231-A (GB)
Title: Pressure sensor utilizing a ferromagnetic fluid
IPC: G01L7/18
Filed: 1976-02-09
Abstract: 1497231 Measuring fluid-pressure electrically BENDIX CORP 9 Feb 1976 [20 March 1975] 05009/76 Heading G1N A pressure sensor comprises a displaceable ferromagnetic liquid 16 and means 17 for sensing the displacement. In one embodiment the liquid is retained in position by a ring magnet 11 or a coil. A pressure exerting fluid or a surface acting on the liquid causes it to move up the tube 13. Thus changes the permeability of the core of coil 17 which is detected by an induction bridge or a differential transformer. The liquid may be protected from the fluid by a non-magnetic membrane. To obtain a linear pressure scale the tube 13 may be conical. The magnet 11 and surface may be in the base of the housing 10, tube 13 then extending straight up. Tyre pressure can be measured by placing the tyre wall in contact with the liquid. In a further embodiment the housing 10 is omitted and magnet 11 is replaced by a coil (24), Fig. 2 (not shown) shielded from coil 17. The signal from coil 17 is used to control the current in coil (24) to return the liquid to its original position, thus current being used to indicate pressure. The effect of temperature can be eliminated by the use of two devices, one not subject to pressure. The liquid is a colloidal suspension of submicron ferromagnetic particles in a dielectric fluid.
Patent GB-1305405-A (GB)
IPC: F25B6/04
Filed: 1970-02-03
Abstract: 1305405 Swimming baths WITTE HAUSTECHNIK GmbH 3 Feb 1970 [3 Feb 1969] 5056/70 Addition to 1294456 Heading A4N [Also in Division F4] An indoor swimming bath installation as described in parent Specification 1294456 is modified in that a hot water storage tank 104 is incorporated in the water heating circuit 102 for the water in the basin or, as shown, is arranged in a water circuit in heat exchange relationship with the heat pump. The evaporator 103'is included in a cold water circuit with an air cooling and dehumidifying heat exchanger 113, and the condenser 103" is included in a hot water circuit with an air heating heat exchanger 120. The hot water circuit also serves radiators 106 and a floor heating system 123. The tank 104 is electrically heated. In another embodiment the hot and cold water circuits are connected to further air conditioning systems. The heat exchangers 113, 120 may be arranged in a duct at the foot of the enclosure walls 101 to form an air screen adjacent the walls. The heat pump may include a second condenser 103<SP>v</SP>, Fig. 2 which heats a public water supply system.
Patent GB-409482-A (GB)
Title: Improvements in treads for pneumatic tyres
IPC: B60C11/04
Filed: 1933-02-18
Abstract: 409,482. Pneumatic tyres. DUNLOP RUBBER CO., Ltd., 32, Osnaburgh Street, London, and KING, F. G. W., Fort Dunlop, Birmingham. Feb. 18, 1933, No. 5071. Addition to 385,240. [Class 144 (ii).] A ' silent ' tread of the kind described in the parent Specification is formed with projections 1 which, in circumferential sequence, are of dissimilar and irregular outline and are separated by obliquely-intersecting grooves 2. In a modification (not shown), the tread projections may be connected by circumferential or transverse ribs arranged below the normal tread surface.
Patent GB-729602-A (GB)
Title: Telescope for levelling and similar instruments
IPC: G01C9/12
Filed: 1953-02-24
Abstract: 729,602. Sighting telescopes. ZEISS STIFTUNG, C., [trading as ZEISS, C. [Firm of].]. Feb. 24, 1953 [Feb. 27, 1952], No. 5078/53. Class 97 (1). To maintain the line of sight of a telescope constant independent of small rotations about a horizontal axis it is combined with a collective system receiving light from the object and directing it to a small accessory mirror located in its focal plane whence it passes to a concave spherical mirror also having its focus at the auxiliary mirror so forming a collimated beam which passes to the telescope, the concave mirror being pendulously mounted about a point lying on the optical axis of the collective system as mirrored by the small mirror and at a distance from the centre of curvature of the concave mirror equal to the focal length of the collective system. As shown, light from the object, after passing a Schmidt correcting plate b is focused by a concave mirror a on a small mirror c fixed relative thereto. Light from this image is collimated by a spherical mirror d, passes a Schmidt plate e at the centre of curvature A of the mirror d and reaches the observing telescope g, h via a mirror f. The concave reflector d and plate e are pivoted about point B, the distance of which from the point A is equal to the focal length of the mirror a. All the elements except the mirror d and plate e are rigidly attached together so that as they execute small oscillations about an horizontal axis the mirror d and plate e remain fixed with respect to the vertical and so maintain the line of sight through the centre i of the telescope graticule.
Patent GB-968402-A (GB)
Title: Carrier arrangement for conductive rails provided with lateral grooves extending longitudinally
IPC: H02G5/04
Filed: 1962-02-09
Abstract: 968,402. Collectors. E. FEY. Feb. 9, 1962 [March 10, 1961], No. 5122/62. Heading H2E. [Also in Division B7] A support for conductive rails 10, provided with longitudinal grooves in their sides, consists of at least two elongated securing members such as 12, 13, 14 with interfitting projections and recesses such as 12a, 13b, 13a, 14b, to prevent rotation of the members, and opposed projections such as 12g, 13g, 14g which clamp the rails between them when a central nut and bolt, 15, 16 are tightened. As shown, part 12 has an integral shoe, which rests on a channel 11 forming running rails, and carries ribs 12i which are clamped to the lower part 11b of the channel by bolt 15 and nut 16, the nut being mounted in a bearing part 17, which is held captive in slots 12k by fins 17b. When the bolt 15 is tightened the rails are clamped between the insulators and the bearing part 17 forces the ends of the ribs 12i apart, clamping them, and thus the insulators, to the support 11. An insulating rail terminal member 20, which interlocks with and is bolted to a support, is described, Figs. 6-11 (not shown), together with a method of joining rail sections using such terminal members attached to supports and intermediate members, Figs. 9-11c (not shown). Two methods of providing a drive for a vehicle supported by the channel 11 are also described, Figs. 12 and 13 (not shown). Specification 968,401 is referred to.
Patent GB-448900-A (GB)
Title: Means for controlling the closing of double doors
IPC: E05F5/12
Filed: 1935-02-18
Abstract: 448,900. Door stops; hinges. NEWMAN & SONS, Ltd., W., and NEWMAN, H. G., 268, Hospital Street, Birmingham. Feb. 18, 1935, No. 5152. [Classes 65 (i) and 65 (ii)] Means for controlling the closing of double doors to ensure that the correct door closes first comprises a pair of arms 3, 4, each movable about a vertical axis, which move into such positions when the doors are opened that the arm 3 stops the closing of the outer door until the arm 4 is moved by the inner door when the latter is in a position to ensure correct mating with the outer door. In the form shown in inverted plan, the arms 3, 4 are mounted on a common pivot pin 5 carried on the lintel, and a spiral spring 16 carries the arm 3 out to the position shown when the doors are opened, the arm 4 being also moved to the position shown by a shoulder on the arm 3 engaging a stop flange 10 on the arm 4 ; the outward movement of the arms is limited by a stop lug on the flange 10 engaging a fixed stop 13. Both arms have rollers for engaging the doors, and arm 3 is made telescopic and provided with a shock-absorbing spring. When the doors close the movement of the right-hand one is stopped by arm 3 until the other door moves arm 4 inwards to carry arm 3 across dead-centre so that it can then be moved anticlockwise by its door, lost-motion being allowed in the connection between the arms so that they can lie approximately one above the other in the closed position. The pin 5 is fixed in the base plate 6, and the arm 4 bears on a boss on the plate 6 and has a circular flange, of which the flange 10 is an extension, within which bears a circular flange on the arm 3, the parts being held together by a nut and washer on the end of the pin.
Patent GB-724946-A (GB)
Title: Improvements in and relating to magnetic gaskets
IPC: E05C19/16
Filed: 1953-02-24
Abstract: 724,946. Sealing gaskets. GENERAL ELECTRIC CO. Feb. 24, 1953 [Feb. 26, 1952], No. 5155/53. Class 20 (3). [Also in Group XIII] A magnetic gasket for the closure member of a cabinet, e.g. a refrigerator, comprises a base portion 12 having a fastening rib 13 and a toe portion 16, and a tubular section 18 hinged at 17 to the base portion, a number of magnets 20 being assembled within the section 18 so that as the door is closed the section 18 is attracted toward a face portion 4 framing the opening in the refrigerator to effect a seal and as the door is opened' the section 18 is attracted toward a face 9 on the door. The section 18 is provided with a bead portion 21 and a sealing rib 19, the bed 21 first making contact with the face 4 as the door is closed, thereafter the section 18 rotates about the point engaged by the bead 21 until the rib 19 is brought into sealing engagement with the face portion 4. The tendency for the section 18 to rotate outwardly also urges the toe portion 16 into engagement with the door. The gasket is fastened to the door by means of the rib 13 which is engaged by a retainer 14 screwed to the door frame. Specification 686,047 is referred to.
Patent GB-853059-A (GB)
Title: Production of ethylidene esters and vinyl esters
IPC: H03G1/00
Filed: 1957-02-15
Abstract: Ethylidene (or substituted ethylidene) diesters of carboxylic acids are obtained by subjecting acetaldehyde or a substituted acetaldehyde to reaction with a mixture comprising a free carboxylic acid and the anhydride of a different carboxylic acid in the presence of an acid catalyst to obtain a reaction product comprising a mixture of ethylidene (or substituted ethylidene) diesters.  Also, a mixture of vinyl (or substituted vinyl) esters of carboxylic acids is obtained by reacting acetaldehyde or substituted acetaldehyde with a mixture comprising a free carboxylic acid and the anhydride of a different carboxylic acid to produce a mixture of ethylidene (or substituted ethylidene) diesters and decomposing said diesters to produce a mixture of vinyl esters of said carboxylic acids, both the production and the decomposition of the ethylidene diesters being carried out in the presence of an acid catalyst.  One or more carboxylic acids and one or more carboxylic acid anhydrides may be used.  It is preferred to use a mixture of acetic anhydride with propionic, butyric or pentanoic acid and to use between 1 and 10 moles of the anhydride for each mole of acetaldehyde and the quantity of carboxylic acid should range from about 0,05 to 1,0 mole for each mole of the anhydride. Specified acid catalysts are sulphuric acid, alkane sulphonic acids, and aromatic sulphonic acids.  The ethylidene diester-forming reaction is best carried out at between 120 and 160 DEG C. and will then normally require from 0,5 to 2 hours to to to completion.  The decomposition of the ethylidene esters is suitably affected at temperatures of at least 130 DEG C. and the vinyl esters are preferably removed from the reaction zone, e.g. by distillation, as they are formed.  They may be separated from one another by fractional distillation.  A small amount of a polymerization inhibitor may be present in the reaction zone.  It is preferred to carry out the production of the ethylidene diesters and their conversion to the vinyl esters in a single reactor and the process may be carried out batchwise or in a continuous manner.  Examples are given for the production of a mixture of (1) vinyl acetate and vinyl propionate and (2) vinyl acetate and vinyl butyrate.  Specification 576,397 is referred to.
Patent GB-1439433-A (GB)
Title: Container
IPC: B65D19/00
Filed: 1974-02-05
Abstract: 1439433 Containers; load handling pallet SVEIN STROMBERG & CO AS 5 Feb 1974 [6 Feb 1973] 05328/74 Headings B8P and B8H A plastics container 1 has a lower part 2 which increases the rigidity and has openings 10 for the tines of a fork-lift truck. The inside surface of the container is smooth to assist washing. Rib formations 11, 12 on the mating surfaces ensure that the parts 1 and 2 are in register and prevent movement of one part relative to the other part. Hollow frames 3 and beams 6 stiffen the container and spigots 13 and sockets 14 strengthen the corners. Bolts may be used to secure the container to the lower part 2. The ribs and grooves are deeper at their mid points (as shown on the underside of part 1) and may alternatively lie transversely of the base or diagonally thereof or in the form of concentric rectangles or an oval pattern.
Patent GB-589927-A (GB)
Title: Improvements relating to spring clamps
IPC: D06F55/00
Filed: 1945-03-03
Abstract: 589,927. Spring-operated clamps. ROWLAND, J. H., and PIPER, D. N. March 3, 1945, No. 5372. [Class 44] In a two-jaw spring-operated clamp comprising two identical members 1 which present at one end co-acting clamping jaws 2 (furnished with recesses 6, 7 for a line in the case of a clothes peg), and at the other end serrated hand grips 3, the members 1 each have, on opposite sides, substantially semi-circular lugs 8 recessed at 9, and waisted on both sides at 11 to receive two simple bow springs 12, one on each side of the clamp, to hold the members 1 in pivoted assembly and resiliently urge the jaws 2 together. The bows of the springs engage in the recesses 9 on the lugs 8, two co-acting limbs 12a being offset from the bow to engage in recesses 10 in the inclined inner faces 5 of the hand grips 3. The members of the clamp may be of various materials, such as plastic or metal. In a modification, instead of two bow springs, a single spring may be bent up, having the requisite two bows and four limbs. '
Patent GB-1288151-A (GB)
IPC: H05B6/76
Filed: 1970-02-04
Abstract: 1288151 Microwave ovens LITTON INDUSTRIES Inc 4 Feb 1970 [4 Feb 1969] 5450/70 Heading H5H A microwave oven door seal is made so as to be effective during the initial opening movement of the door. The metal side walls 20 bounding the oven cavity are bent, as shown, to provide a frame 10 defining the opening 8, and the door 3 has a projecting rim 14 forming a frame which overlaps frame 10 when the door is closed. A box-shaped, viewing panel support 16 on the inner side of the door has conductive sides 18 facing the rim 14 and providing therewith a channel accommodating the frame 10, which has a plastics inner lining strip 12. An outer lining strip 21, Fig. 3 (not shown), of carbon loaded plastics, is secured to the external surface of frame 10, freeing rim 14 when the door is closed, to prevent radiation leakage. A section 22 of conductive surfaces 18 provides a passage 24 forming a high frequency choke. The usual interlock and timer circuitry is included in the apparatus.
Patent GB-161402-A (GB)
Title: An improved device for locking nuts on bolts
IPC: F16B39/24
Filed: 1920-08-05
Abstract: 161,402. Whitaker, C. Aug. 5, 1920. Locking nuts. - A washer D splined to a bolt is cut radiallv and eccentrically between the inner and outer peripheries to form a spring tongue adapted to engage ratchet teeth J formed in a recess in the base of the nut H. The washer may be located in a recess in another washer L, the tongue projecting through an opening. By turning the washer L, the tongue may be brought out of engagement with the ratchet teeth when required.
Patent GB-1422154-A (GB)
Title: Flocked fabrics and a process for making them
IPC: D06M17/00
Filed: 1972-02-07
Abstract: 1422154 Flocked fabric IMPERIAL CHEMICAL INDUSTRIES Ltd 2 Feb 1973 [7 Feb 1972] 5491/72 Heading B2E A lint-free flocked fabric is produced by (a) forming a non-woven base-web comprising thermoplastic fibres or filaments, (b) treating the base-web so as to form autogeneous bonds between the fibres or filaments at cross-over points, (c) applying a uniform amount of adhesive to the bonded base-web, (d) applying flock fibres to the adhesively coated base-web, (e) drying the adhesive, (f) applying to the structure thus formed a uniform amount of adhesive in a solution which has a concentration which is not more than “ of the concentration of the adhesive applied to the base web in step (c), and (g) drying the adhesive. The flock fibres inthe fabrics are thereby coated with the adhesive. The fibres or filaments may be bonded together by heat, or treatment with a solvent, plasticiser or swelling agent. Multi-component fibres or filaments can be used, e.g. filaments having a core of nylon 66 and a sheath of nylon 6. The flock fibres may be alpha-cellulose or a polyamide and may be applied using an electrostatic field. The adhesive solution in f may contain flame-retardant agents and/or water-repellant agents and/or antistatic agents and/or pigments. The products may be used as disposable garments, surgical drapes. In a typical example bicomponent filaments having a core of nylon 66 and a sheath of nylon 6 are sprayed on to a conveyor surface and the web bonded by applying heat and pressure. The bonded web is then passed to a two-roll lick-roll/nip adhesive applicator where an aqueous dispersion of an acrylic resin is applied. Flock fibres of alphacellulose are then applied to both sides of the web and the flocked web passed through a dip tank containing a solution of polyvinylidene chloride resin and the product finally dried.
Patent GB-805026-A (GB)
Title: Process for enhancing the solubility of medicines in water
Filed: 1957-02-19
Abstract: Medicinal substances, including N,N1-di-benzylethylenediamine-dipenicillin G, that are poorly soluble or insoluble in water are solubilized by the addition of a pyrrolidone-2 derivative substituted at the nitrogen atom by an alkyl radical with 1 to 5 carbon atoms, e.g. N-methylpyrrolidone-2.ALSO:A process whereby medicinal substances that are substantially or completely insoluble in water are made soluble by the addition of a pyrrolidone-2 derivative substituted at the nitrogen atom by an alkyl group containing 1 to 5 carbon atoms.  The preferred derivative is N-methyl pyrrolidone-2 and is of particular value in making chloramphenicol solutions.  Medicinal substances may also be extracted from crude sources by the use of the pyrrolidone-2 derivatives.  Medicines given in the examples that may be solubilized in this way are procaine (both the base and the hydrochloride), butyl p-amino-benzoate, progesterone, desoxycortisone, cortisone, diethylbarbituric acid, allyl isobarbituric acid, mephenesin, camphor, digitaline and N,N1-dibenzylethylene diamine-dipenicillin G.
Patent GB-438729-A (GB)
Title: Improvements in the treatment of filaments, films and similar materials containing organic derivatives of cellulose
IPC: D01F2/28
Filed: 1934-03-20
Abstract: Artificial filaments, threads, yarns, foils, films, and similar materials containing cellulose acetate or other organic derivative of cellulose are subjected to stretching while under the influence of a water-insoluble organic non-solvent at a temperature above atmospheric temperature and at atmospheric or higher pressure. The non-solvent is one which has no swelling action or solvent action on the cellulose derivative at ordinary temperatures.  It may be a monohydric alcohol such as amyl alcohol, or a hydrocarbon such as benzene, toluene, xylene, di- or hexa-hydrobenzene, naphthalene, tetra- or deca-hydronaphthalene, nitro-naphthalene, nitrobenzene, nitrotoluene, nitroxylene, or an ether such as iso-propyl ether, or a ketone such as methyl amyl ketone, or an ester such as normal or iso-propyl acetate.  These substances have a softening action on cellulose derivatives at raised temperature.  The temperature of the treatment may be from 50 DEG  C. to more than 200 DEG  C.  The non-solvent may be used in liquid or vapour form and may be mixed with steam or water vapour.  The filaments may be in the form of twisted or untwisted yarns, and stretching may be carried out in stages.  Films may be stretched transversely and longitudinally.  The materials may be subjected also to saponification, delustring, shrinking, and other treatments.  In an example, cellulose acetate yarns are passed in parallel formation through hot nitrobenzene and stretched. Specifications 277,089, [Class 2 (ii)], 362,939, 370,430, 400,589, 400,597, 438,584, 438,585, 438,586, and 438,587 are referred to.
Patent GB-879960-A (GB)
Title: Cutting or trimming an article
IPC: B29C49/74
Filed: 1960-02-17
Abstract: 879,960. Trimming moulded thermoplastic tubes &C. AMERICAN CAN CO. Feb. 17 1960 [March 31, 1959], No. 5635/60. Class 87(2)' A moulded thermoplastic tube A is trimmed by knives 33, rotated by a shaft 25, in a cutting head 14 which is lowered by a cam 18 to position the bottom 69 of the head against the tube A. As the head is lowered, it operates a control which causes an air motor 43 to operate at a higher speed. When the shaft 25 is rotated at this higher speed, weights 41 are swung outwardly and this movement causes the knives 33 to move inwardly into cutting engagement with the tube. Springs 36 hold the knives in the inoperative position during the slower rotation of the shaft 25. The cut-off part D is removed by suction through the shaft 25.
Patent GB-371526-A (GB)
Title: Combined controlling device for steering and stabilising aircraft
IPC: B64C13/00
Filed: 1931-02-23
Abstract: 371,526. Aircraft control gear. BERNARDI, M. DE, 42, Via Della Mercede, Rome. Feb. 23, 1931, No. 5682. [Class 4.] The elevator, ailerons, rudder, and wheel brakes of an aeroplane are controlled by a single device comprising a hand-wheel 11 mounted on a pillar 37, 38 capable of fore and aft rocking movements. Rotation of the hand-wheel 11 moves the rudder, ailerons, and brakes, simultaneously, and rocking movements of the pillar control the elevator. A second control wheel may be provided mounted on another arm set on the pillar symmetrically to the part 38. The shaft of the wheel 11 has a sprocket 8 connected by a chain to a sprocket 5 on a shaft 4 to which a double grooved pulley 2 and a pulley 1 are keyed. A third pulley 3 is loose on the shaft but has a projection engaging abutments on the wheel 2. The pillar 37 is mounted on a transverse tube 17 carrying a lever 16 to which the elevator cables are connected, and cables from the pulleys 1, 2, 3 are led around the pulleys shown and through the tube 17 to the rudder, ailerons, and wheel brakes respectively. A fixed casing 39 encloses the pillar 37. An eccentric 40 with actuating lever 41 is mounted on a support 42 on the pillar to lock the pulley 1 in any adjusted position.
Patent GB-452447-A (GB)
Title: The production of acyl derivatives of germinal gland hormone preparations
IPC: C07J75/00
Filed: 1935-02-22
Abstract: Acyl derivatives of germinal gland hormones are prepared by hydrogenating esters of unsaturated compounds of similar chemical configuration to the female germinal gland hormone but containing in their ring skeleton directly connected to the carbon atoms thereof two hydroxyl groups and also at least two hydrocarbon residues.  Mono acyl compounds prepared in the above manner may be converted into di-acyl compounds by further acylation.  The preferred method of hydrogenation is the catalytic method, but other methods may be used. In an example the 3-acetoxy-methyldiol produced by acylation of the compound prepared according to example 1 of Specification 446,501 is hydrogenated in the presence of a platinum oxide catalyst according to the method of Adams-Schriner.  On evaporation of the reaction solution the corresponding 3-acetoxyhexahydro-methyldiol is obtained. Specification 434,390 is referred to.