baber/WOPTO huggingface dataset:
Patent GB-867019-A (GB)
Title: Geophysical prospecting apparatus
IPC: G01V3/34
Filed: 1958-08-06
Abstract: 867,019. Photographic cameras. TEXACO DEVELOPMENT CORPORATION. Aug. 6, 1958 [Aug. 13, 1957], No. 25168/58. Class 98(1) [Also in Group XXXVI] A camera is contained within the drill of bore hole sinking apparatus (see Group XXXVI). The camera 78 is mounted in an inner casing 50 which is journalled in ball races 42 mounted in the end caps of a sealed outer casing 22 capable of withstanding a pressure of 14,000 p.s.i. The outer casing 22 is supported within the tubular drill shaft 14. The camera 78 records the output of a reflecting galvanometer 90 and comprises a cassette 198 of 35mm. film 214 which is driven past a plano-convex lens 224 by a battery operated electric motor at a speed of 1À7 in/hr. A clutch 208 is provided to allow the camera to be removed.
Patent GB-1224877-A (GB)
Title: Improvements in or relating to the treatment of clay
Inventor: CLARK NORMAN OWEN
IPC: C04B33/10
Filed: 1967-05-31
Abstract: 1,224,877. Brightening clay. ENGLISH CLAYS LOVERING POCHIN & CO. Ltd. 29 May, 1968 [31 May, 1967], No. 25191/67. Heading C1A. [Also in Division B2] A process for brightening clay comprises subjecting the clay feedstock to froth flotation, followed by attrition grinding of the purified clay. Two procedures are given for froth flotation: (1) An aqueous slurry containing 35 to 50% wt. of crude clay is conditioned by agitating the slurry for a time sufficient to dissipate 20 horsepower hours of energy per ton of clay within the slurry. During or before conditioning there is mixed in the slurry, (a) a deflocculant (e.g. sodium silicate 1.0 to 12.0 lbs. per ton of clay), (b) an alkali to raise the pH of the slurry to above pH 7 (e.g. NH 4 OH, 1.0 to 12.0 lbs. per ton of clay), (c) a collector for mineral impurities (e.g. oleic acid 1.5 to 7.5 lbs. per ton of clay), and (d) an activator (e.g. lead acetate on calcium chloride). After dilution of the slurry to 15 to 30% wt. solid content, the slurry is subjected to froth flotation in a vessel having a central internal impeller. The frothing agent used is pine oil or an alkyl ether of polypropylene glycol. (2) An aqueous slurry containing 35 to 50% wt. of crude clay is mixed with a mineral acid to bring the pH of the slurry to below 4, a cationic collector (e.g. aliphatic C 8 -C 20  amine, acetate or hydrochloride at 0.2 to 2.0 lbs. per ton of clay) and a frothing agent of the type used in procedure (1) in approximately the same concentration as the cationic collector. The product clay is attrition ground to dissipate therein at least 100 horsepower hours of energy per ton. Reference has been directed, by the Comptroller to Specification 1,103,585.
Patent GB-517208-A (GB)
Title: Improvements in or relating to spring suspensions for the wheels of bicycles and other single track vehicles
IPC: B62K25/06
Filed: 1938-08-27
Abstract: 517,208. Spring frames for cycles &c. BUTTERFIELDS, Ltd., and NEWEY, H. Aug. 27, 1938, No. 25200. [Class 136 (iii)] In a spring suspension for cycles &c. of the type in which each end of the wheel axle is mounted between two oppositely-acting compression springs, the two sets of springs on opposite sides of the wheel are balanced hydraulically, so as to prevent canting of the axle should the springs be of unequal strength; frictional dampers are also operated hydraulically so as to act with progressively-increasing force on the axle-carrying member as the wheel rises. A housing 1 secured to the rear ends of the frame tubes on each side is provided with a rod 3 on which slides a sleeve 4 secured to a cylindrical member 5 having a slotted part 6 to carry the wheel axle. The sliding movement is controlled by a main spring 8 and a rebound spring 21, the upper end of the spring 8 bearing against a plate 9 acting on plungers 11, which slide in a block 10 and extend into a chamber 12, which is charged with grease, oil, or other pressure fluid through a nipple 15. The chambers 12 on opposite sides of the wheel are connected together by a fluid-pressure pipe line 17, whereby the action of the springs is equalized. The cylindrical member 5 is formed with a flat face 22, against which presses a damper 23, which is lined with frictional material 24 and is acted upon by springs 30a. The damper 23 is also controlled by a plunger 29 which is acted upon by the pressure fluid in the pipe line 17, whereby the damping action progressively increases as the wheel rises.
Patent GB-969939-A (GB)
Title: An improved process for the preparation of mixtures of epoxy alkyl esters of saturated aliphatic monocarboxylic acids in which the carboxyl groups are attached to tertiary or quaternary carbon atoms
IPC: C08G63/42
Filed: 1962-07-02
Abstract: In a process for the preparation of mixtures of epoxy alkyl esters of saturated mono-carboxylic acids, in which the carboxyl groups are attached to tertiary or quaternary carbon atoms, mixtures of salts obtained by the neutralization of monocarboxylic acids, <FORM:0969939/C1/1> in which R1 and R2 represent an alkyl group, R3 a hydrogen or an alkyl group, and R1, R2, R3 together contain at least 7 carbon atoms prepared by the reaction of mixtures of olefines containing at least 8 carbon atoms in the molecule with carbon monoxide and water, are reacted with 2,3-epoxy halogen alkanes, the salt mixtures are liquid with a water content of from 5 to 25% and are added to epoxy halogen alkanes boiling under reflux.  The process is batchwise or preferably continuous, with an excess of epoxy halogen alkanes together with the liquid water containing salts, being fed into a reaction mixture of constant composition.  A series of at least two reactors may be used, and the vapours of epichlorhydrin and water condensed and fractionated, and the epoxyalkyl esters isolated from the mixture.  Examples describe batchwise and continuous processes using sodium salts and epichlorhydrin.
Patent GB-362446-A (GB)
Title: Improvements in or relating to double roller cotton gins
IPC: D01B1/06
Filed: 1930-08-26
Abstract: 362,446. Cotton-gins. JACKSON, L. MELLERSH-, 28, Southampton Buildings, London.-(Volkart, Geb.; Winterthur, Switzerland.) Aug. 26, 1930, No. 25500. Addition to 276,879, [Class 120 (i), Spinning, Preparation &c. for]. [Class 120 (i).] The double roller gin of the parent Specification is modified in that the shaft 10 of each leather roller 9, Fig. 1, is mounted by means of journals having ball-shaped portions 10a in bearing sleeves 31, 32 which are mounted in the swinging arms 11, Fig. 2, and connected with the shaft 10 by loosely interengaging coupling-members 33, 34a which provide clearance for radial movement. The sleeve 31 is formed as an extension of the pin carrying the driving gear wheel 14 while the claw-members 33, 34a are formed respectively on the end of the sleeves 31, 32 and on a disc 34 fixed to the roller 9. To dismount the roller 9 the arm 11 remote from the driving-gear is moved out on the extended pivot-pin 35 to the dotted position, Fig. 1, thus freeing the journal members 10a.
Patent GB-364007-A (GB)
Title: Improvements in the manufacture of means for producing a straight line motion of lenses in kinematograph apparatus or of other objects
IPC: G03B41/08
Filed: 1930-08-27
Abstract: 364,007. Milling- machines. JOHN, W. E.. National Bank Buildings, Simmonds Street, Johannesburg, South Africa. Aug. 27, 1930, Nos. 25511/30 and 14747/31. [Class 83 (iii).] In a process for forming internal driving faces 34 of the teeth of a pocketed driving wheel 2 forming part of apparatus such as that described in Specification 319,302, [Class 97 (i), Optical systems &c.], in which a series of loose cylindrical bodies such as lens carriers is circulated through a closed path comprising part of the driving wheel 2, a rectilinear and preferably diametral guide 21, and curved transition guides represented by two arcs such as 14, the driving wheel is first provided with pockets 3 of the same diameter d as the loose bodies and the driving faces 34 are then shaped by a milling cutter 9 which is constrained to move along the transition arc 14 while the driving wheel is simultaneously rotated through an arc equal to that through which it would rotate while one of the loose bodies traverses the guide in contact with the driving face. The pockets 3 are first formed by boring holes in a circular blank and then removing the central part of the disc. The blank is then secured to a table 7 rotating on a spindle 8. The tool 9, which is of the diameter d, is driven by an electric motor 10 through a flexible shaft 11 and is mounted on an arm 12 pivoted on a pin 13 so that the cutter may move along the arc 14 of the transition guide. The cutter is axially movable on the arm 12 so that it may be positioned in successive holes 3. An arm 16 integral with and of the same length as the arm 12 carries a pivot pin 17 spaced from the cutter axis by the distance d and connected by a link 18 also of length d with a pivot 19 on a slide 20 which moves in the diametral guides 21. The table is rotated through the circular pitch angle A by means of a worm 24 on a shaft 22 operated by a hand-wheel 23 while the slide 20 is simultaneously moved in unison through the distance d by means of worm gearing 25, shaft 31 and rack and pinion mechanism 27, 28. The feed of the rack 28 corresponds to one revolution of the pinion 27 which is coupled to its shaft by a pin 29 so that the slide 20 may be returned at the end of an operation by disengaging the coupling pin. The feed of the table through the angle A is determined by a pin 33 engaging a series of notches 32. At the end of the operation the cutter is in the position shown in Fig. 2. In some cases, the arms 12, 16 may be separately formed and may be connected together by a link such as 18. The first Provisional Specification also refers to Specifications 290,372 and 334,033, [both in Class 97 (i), Optical systems &c.].
Patent GB-236431-A (GB)
Title: Improvements in electrical condensers
IPC: H01G4/30
Filed: 1924-10-27
Abstract: 236,431. Dubilier Condenser Co. (1921), Ltd., (Dubilier, W.). Oct. 27, 1924. Condensers.-In a condenser comprising a stack of conducting and dielectric sheets clamped together, a cushion of uniformly yieldable and resilient material, e.g. rubber, is provided for enabling the clamp to exert an even degree of pressure over the entire area of the stack. In one construction, Fig. 1, the cushion 6 is placed between the stack and a metal base plate 5, the clamp 4 being bent around the stack and over the base plate. In another construction, Fig. 3, the stack is placed between a cover plate 7 and a base plate 8, the cushion 6 being placed between the stack and the base plate. A band clamp 13 encircles the plates, and clips 10, secured to extensions 9 of the base plate by hollow rivets 11, are provided with flanged extensions 12 which are bent into engagement with the sides of the cover plate 7.
Patent GB-980082-A (GB)
Title: Improvements in and relating to the manufacture of lead-through insulator units including vitreous material to metal seals
IPC: H01L23/04
Filed: 1961-07-14
Abstract: <PICT:0980082/C1/1> In a glass-metal seal, leads 14 are located relative to a retaining metal element 16 by the vitreous material 15 and retained in position during firing by placing the ends 18 in a mat 34 of fibrous material.  The vitreous material 15 is preferably formed by placing the element 16 in a mould and filling it with powdered glass which is compacted by a die, the die and mould having bores in which, respectively, the leads 14 slide and the ends 18 are anchored.  Alternatively, an apertured disc D of glass may be used. The mat 34 may be of fibres of kaolin, zirconia or a mixture of alumina and silica.  The leads 18 are connected by nickel wires to a germanium wafer transistor.
Patent GB-756119-A (GB)
Title: Improvements in or relating to electric switches, especially electromagnetic relays
IPC: H01H1/08
Filed: 1954-09-03
Abstract: 756.119. Electromagnetic relays. WESTERN ELECTRIC CO., Inc. Sept. 3, 1954 [Sept. 21, 1953], No. 25626/54. Drawings to Specification. Class 38(5) To prevent contact sticking in the relay disclosed in Specification 648.656, the mercury is replaced by a solution of mercury and copper, the latter being present in an amount up to 0.05 per cent by weight. Specification 553.329 also is referred to.
Patent GB-1395747-A (GB)
Title: Bushings or grommets
IPC: F16L5/00
Filed: 1972-06-01
Abstract: 1395747 Bushings or grommets; fastenings J H NICHOLSON and W JEMISON 1 June 1972 [3 Feb 1972] 25682/72 Headings E2A and E2B A bushing or grommet 16 is provided with a device 10 comprising a resilient arm portion 12 and at least one integral stem portion 11 extending from the arm portion 12 intermediate its ends. The device is provided with an eye 13 through which the arm portion 12 and stem 11 is passed so as to form a loop to encompass a portion of the bushing or grommet 16. If the bushing or grommet which is normally engaged in an aperture 25 falls therefrom the arm portion 12 of the device 10 engages the apertured member to prevent the bushing or grommet 16 from falling away therefrom. The loop may be formed by a snap fastening at the end of the stem cooperating with an eye intermediate the ends of the stem (Figs. 5, 6, not shown). The device may be integral with one of three integral parts of a bushing or grommet (Figs. 9 to 16 not shown). Alternatively two stems may be integral with the bushing or grommet and the arm portion is arcuately shaped (Figs. 7, 8, not shown). The eyelet may be formed by two co-operating members (Figs. 17 to 20, not shown). The arm portion may be oblique to the stem (Fig. 16, not shown).
Patent GB-1360927-A (GB)
Title: Composition containing a substance showing a topical effect on the eye and a method of preparing same
IPC: A61K9/00
Filed: 1972-06-02
Abstract: 1360927 Eye treatment PHARMACIA AB 2 June 1972 [4 June 1971] 25762/72 Heading A5B Compositions which contain a substance having a topical effect on the eye, and which are in the form of a dosage unit comprising a solid-shaped body intended to be inserted in the cavity of the eye, are prepared by moulding or pressing a dispersion of the constituents of a mixture of 5 to 60% of at least one lipophilic substance having a melting point of 37 to 75C; 5 to 40% of at least one water-soluble or water-swellable polymer in solid, powder form; 0.05 to 30% of at least one substance having a topical effect on the eye and being in solid finely-divided form; and 10 to 80% of at least one surface active higher alcohol having 12 to 22 carbon atoms to serve as a stabilizer for the mixture, the percentages relating to percent by weight calculated on the total weight of the mixture. The lipophilic substance may be a hydrocarbon (such as a paraffin), a wax (e.g. beeswax, or a fat (such as a glycerol ester of a fatty acid), or mixtures of these_substances; surface active higher alcohol may be 1-docosanol, 1-hexadecanol, 1-octadecanol, 1-dodecanol, 1-tridecanol, 1-tetradecanol, 1-heptadecanol, 2-heptadecanol, 9-heptadecanol, 1-eicosanol and/or 2-eiconsanol; the watersoluble or water-swellable polymer may contain hydroxyl, amino, amide and/or carboxyl groups and examples include dextran, hydroxyalkyl dextran, carboxymethyl dextran, hydroxyalkyl cellulose, alkyl cellulose, carboxymethyl cellulose, polyviny alcohol, dextrin, starch, polyvinyl pyrrolidone and polyalkylene glycols; and the substance showing a topical effect one the eye may be a drug for glancoma therapy, e.g. pilocarpine, adrenaline, physostiqmine, synstigmine, echothiopate iodide, diisopropyl fluorophosphate, carbachol, demecarium bromide. ascorbic acid or guanethidine, or a substance having a mydriatic effect such as metaoxedrine, atropine, cyclopentolate or tropicamide.
Patent GB-922465-A (GB)
Title: Sliding door assembly for vehicles
Inventor: CHRISTIE JOHN JAMES WATSON
IPC: B60J5/06
Filed: 1959-07-28
Abstract: 922,465. Vehicle doors. COACH FITTINGS DEVELOPMENT Ltd. Sept. 13, 1960 [July 28, 1959], No. 25813/59. Class 103(2) A flush type sliding door 3, Fig. 4, for a vehicle, is suspended by rollers 10 from an upper guide track 4 whilst its lower edge is guided by rollers 12 on brackets 14, which rollers 12 engage opposite sides of a lower track 5, the tracks 4, 5 being movable bodily perpendicularly to the vehicle side wall 1 in order to clear the door from its opening 2 before being slid parallel to the wall. As shown each guide track is connected by three moving links 6 to the side wall. Tension springs 9 between the tracks and wall urge the former to their outward positions. One roller 12 on each bracket 14 is carried by a plate 13 pivoted on the bracket under the urge of a spring (not shown) to cause the rollers to grip the lower track 5. If devised the links 6 may each be provided with a torsion spring to urge the tracks away from the door opening.
Patent GB-297798-A (GB)
Title: Improvements in the manufacture and production of lubricating and insulating oils
IPC: C10G32/02
Filed: 1928-09-08
Abstract: 297,798. I. G. Farbenindustrie Akt.- Ges. Sept. 28, 1927, [Convention date]. Mineral and tar oils; lubricants.-Lubricating and insulating oils are produced by submitting to the action of high frequency electric currents hydrocarbon oils in which are dispersed added lignite, coal, wood, charcoal, colloidal or powdered metals or metal oxides, coal ash, or the like. 1-5 per cent of coal is suitable. The current may have a frequency of 500-2000 or more, and a tension of e.g. 500 volts, or about 2000 volts if a " Voltol " apparatus is used, or 4000-12000 if an ozonizing tube is employed. In an example, a 200-300‹ C. fraction of oil obtained by destructive hydrogenation of Elwerath crude oil is subjected to a glow discharge of 2500 volts and 2000 periods in an atmosphere of hydrogen or inert gas in a " Voltol " apparatus, about 2 per cent of lignite being dispersed through the oil. The lubricating oil produced of higher viscosity and flash point is freed from the lignite by filtration or centrifuging. The Specification as open to inpection under Sect. 91 (3) (a) describes the treatment of " oils of any kind which contain hydrocarbons" in which solid materials are dispersed, and states that oxygen-containing materials may also be added. This subject-matter does not appear in the Specification as accepted.
Patent GB-1336829-A (GB)
Title: Filamentary electrode and fabrication thereof
IPC: H01J61/067
Filed: 1972-06-02
Abstract: 1336829 Cathode constructions GENERAL ELECTRIC CO 2 June 1972 [6 July 1971] 25900/72 Heading H1D A filamentary electrode for low pressure discharge lamps comprises wire 10 coiled in oversized primary turns around a permanent primary mandrel wire 8 which in turn is coiled into non-circular secondary turns to form a doublecoiled electrode. The electrode is manufactured by winding a W wire 10 around a permanent primary mandrel wire 8 of W and a temporary mandrel wire 9 of Mo. The resulting composite is then wound around a non-circular secondary mandrel formed by two Mo wires 11 and 12 to form a double coil which may be wound around a third mandrel to form a triple coil. The mandrel wires 8, 9 or 11, 12 may be of equal or unequal diameters to form either oval-shaped or egg-shaped turns. Setting is effected by heat treatment to a temperature of about 1500 C. in hydrogen and the Mo wires are then dissolved out in a mixture of nitric and sulphuric acids. The non-circular winding is stated to retain the wire 10 in position with no need to crimp, flatten or weld the ends of the coil prior to dissolving out the mandrel wires. The electrode is clamped between the bent-over ends of two lead wires extending from the stem of a lamp (Fig. 1, not shown) and is then coated or charged with activating material such as alkaline earth oxides.
Patent GB-1157858-A (GB)
Title: Improvements in or relating to Sewing-Machines
Inventor: BARON STANLEY
IPC: D05B37/10
Filed: 1967-06-06
Abstract: 1,157,858. Sewing. S. BARON. 4 June, 1968 [6 June, 1967], No. 25955/67. Heading D1G. A cutter for cutting buttonholes in synthetic fabrics comprises a flatsided heated element 5 fastened to the normal knife bar of the sewing machine the element being maintamed constantly at a temperature sufficient for its flat sides to cause fusion of the fibres when brought into contact therewith. The element is electrically heated through conductors 6, 8 and is brought into contact with the material manually.
Patent GB-802007-A (GB)
Title: Improvements in or relating to control of microphonic effects in continuous wave radar systems
IPC: G01S13/538
Filed: 1956-08-24
Abstract: 802,007. Radar. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Aug. 24, 1956 [Sept. 17, 1955], No. 25971/56. Drawings to Specification. Class 40 (7). The interference with the correct functioning of a C.W. Doppler radar system, due to amplitude modulation caused by microphony, is avoided by frequency modulating the transmitter and selecting at the output of the mixer of the receiver a sideband containing frequencymodulation components but free from amplitude-modulated " leak " signal components; the receiver includes the system disclosed in Specification 802,008. It is stated that such amplitude-modulation components arise only near the mean carrier frequency.
Patent GB-167103-A (GB)
Title: Improvements in and relating to tobacco pipes, and cigar and cigarette holders
IPC: A24F1/00
Filed: 1920-09-10
Abstract: 167,103. Low, F. E. Sept. 10, 1920. Tobacco pipes and cigar and cigarette holders.- An aluminium or other core is formed with a central flat part e engaging in slots in the mouthpiece c and twisted ends d, preferably twisted in opposite directions.
Patent GB-803138-A (GB)
Title: Improvements in mechanism for emptying vessels
Inventor: HARGREAVES ALBERT
IPC: B65G65/23
Filed: 1955-09-13
Abstract: 803,138. Tipping milk churns and other vessels; endless conveyers. BOOTH, S. R., and WRIGHT HARGREAVES ENGINEERING CO., Ltd. Sept. 28, 1956 [Sept. 13, 1955], No. 26107/55. Classes 78 (1) and 78 (4). Milk cans or other vessels resting at an inclination to the vertical on an elevator 17 are inverted at the upper end of the elevator by a lifting member 33, 34, turning about a shaft 25 above the elevator and engaging at or near the bottom of each can to invert it. In the construction illustrated the lifting member comprises a pair of spaced arms 33 joined by a bar 34 and carrying side plates 35 joined by a curved surface 36 the outside of which engages the bottom of the can to complete the invertion. The can is received by a cradle 23 disposed between the pulleys 22 at the upper end of the elevator 17 in such a way as to never to come into contact with the milk which is delivered through a screen 38 to a tank 39. The cans 19 are fed to the elevator 17 by a conveyer 10 and are removed after inversion by a conveyer 37. Other conveyers (not shown) may carry the can lids. Lifting member 33, 34 may be driven through chain and sprocket and toothed gearing from the elevator 17 which is driven through variable-speed gearing 15 from a motor 12. Specification 699,078 is referred to.