baber/WOPTO huggingface dataset:
Patent GB-1216505-A (GB)
Title: Improvements in or relating to aromatic polyimides
Inventor: CRITCHLEY JOHN PHILLIP
IPC: C08G73/10
Filed: 1967-06-06
Abstract: 1,216,505. Aromatic polyimides. NATIONAL RESEARCH DEVELOPMENT CORP. 6 Sept., 1968 [6 June, 1967; 26 March, 1968], Nos. 26159/67 and 14590/68. Heading C3R. Novel aromatic polyimides contain repeating units of formula where X represents a direct link or a divalent atom or group and A has the formula where Y is a direct link or a divalent atom or group, at least one of X and Y being a straight chain polyfluoroalkylene group in which at least half of the replaceable hydrogen atoms are substituted by fluorine atoms. X and/or Y may be perfluoroalkylene and X or Y when not polyfluoroalkylene or a direct link may be -O- or -CO-. The polyimides are obtained by reacting diamines or their derivatives with aromatic tetracarboxylic acid dianhydrides or their derivatives with aromatic tetracarboxylic acid dianhydrides or their derivatives. In examples, diamines used are 1,5-bis-(3-aminophenyl) decafluoropentane, 1,3 - bis - (3 - aminophenyl) hexafluoropropane and bis-(4-aminophenyl) ether and the dianhydrides used are 1,3-bis-(3,4-dicarboxyphenyl) hexafluoropropane dianhydride, benzophenone 3,3<SP>1</SP>,4,4<SP>1</SP> - tetracarboxylic acid dianhydride, bis - (3,4 - dicarboxyphenyl) ether dianhydride and 1,7 - bis - (3,4 - dicarboxyphenyl) tetradecafluoroheptane dianhydride.
Patent GB-904804-A (GB)
Title: Glove or mitt
Inventor: CARVER ROGER FRANCIS
IPC: A41D19/00
Filed: 1960-07-28
Abstract: 904,804. Gloves. DENT, ALLCROFT & CO. Ltd. May 1, 1961 [July 28, 1960], No. 26247/60. Drawings to Specification. Class 141. A glove or mitt comprises an outer layer, a lining and a water-impervious interlining of plasticized polyvinyl chloride. The interlining is seamed by welding while the outer layer and lining have stitched seams. The outer layer is made of a knitted or woven fabric, e.g. woven nylon, or skin or leather, and the lining consists of woven wool.
Patent GB-699278-A (GB)
Title: Improved shuttle boxes for looms
IPC: D03D43/00
Filed: 1951-11-09
Abstract: 699,278. Checking shuttles in looms. LANSDOWNE STEEL & IRON CO. Nov.  9, 1951 [Nov. 21, 1950], No. 26256/51. Classes 142(i) and 142(iii) A shuttle swell 12 is pivoted at 26, at the inner end of the shuttle box, and projects into the box through a slot in the wall 10, the other end of the swell being connected to a spring urged member 28 adjustably positioned in a bracket 30. A shuttle correctly positioned in the box pivots the swell and opens a micro-switch 40 in an electric circuit and the loom continues to operate. The other wall of the box comprises an angle member 15, and the walls are adjustably secured by bolts 14, 16 passing through slots in the walls. The wall 15, the swell, and the bottom of the box. are lined with a synthetic resin material which may be a laminated fabric impregnated with a phenolic resin.
Patent GB-208601-A (GB)
Title: Improvements in and relating to apparatus for measuring liquids and emulsions
IPC: B67D7/16
Filed: 1922-09-29
Abstract: 208,601. Hopol, Ltd., and Hovey, R. B. Sept. 29, 1922. Fixed-chamber apparatus for liquids; varying quantity measured in.-A measuring-chamber for liquids and emulsions, e.g. metal polish, having inlet and outlet valves and an overflow comprises separate top and bottom portions fitting into a centre portion CP which, mav be one of a set of various capacities. Glands PG are provided or the parts mav be screwed together ! the centre portion may have various shapes as indicated at E, and is made of glass or of metal with a glass inset.
Patent GB-1502456-A (GB)
Title: Stranded electrical cable
IPC: H01B13/14
Filed: 1975-06-20
Abstract: 1502456 Electric cables PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 20 June 1975 [27 June 1974] 26312/75 Heading H1A A stranded cable comprises a plurality of wires (e.g. 3-8) twisted around a central core (e.g. 1) having an adhesive coating comprising a plastics material, the thickness of the coatings being such that there are interstices between the wires and within an outer sheath 9. The core 1 and wires 3-8 are preferably of 160 Ám. Cu wire and wires 3-8 may be tin plated. The plastics adhesive material 2 may be selected from polyamide, polyvinyl butyral, epoxy resin and phenoxy resin, which soften in the range 80-200 C. The adhesive may be applied in an organic solvent of which a number are disclosed. An insulating sheath 9 of PVC or polyethylene is extruded over the wires and if the heat of extrusion is sufficient to melt the adhesive, the wires will be adhered to the core throughout their length. Alternatively adhesion may be prevented by plunging the cable, immediately after extrusion of the sheath, into cold water. Localized bonding of the wires to the core may then be effected by an induction field or localized heating.
Patent GB-136147-A (GB)
Title: Improvements in and relating to High Frequency Alternators.
Inventor: ALEXANDERSON ERNST FREDRIK WER
IPC: H02K19/24
Filed: 1919-10-27
Abstract: 136,147. Alexanderson, E. F. W., and Nixdorff, S. P. Dec. 6, 1918, [Convention date]. Inductor-alternators; coils. -The field magnet of a high-frequency inductor alternator for radio communication is provided with a number of independent exciting windings, each of which is capable of furnishing the field excitation required for full load; some of the windings are arranged so that they can easily be repaired or renewed. One winding 7 is concentric with the disk rotor 5; the other windings are made up of two semicircular coils 9, 10 each of which covers half the periphery of the frame on the inside and the return portions of which are on the outside of the frame; these coils are secured by inner and outer clamps 11, 12. In the normal operation of the machine, all the windings may be excited ; in the event of a breakdown of one of the windings, the remainder will be supplied with a larger current.
Patent GB-1317458-A (GB)
Title: Cup spring
IPC: F16D13/58
Filed: 1970-06-01
Abstract: 1317458 Springs LUK LAMELLEN UND KUPPLUNGSBAU GmbH 1 June 1970 [2 June 1969] 26365/70 Heading F2S A metal cup spring has an integral apertured lug 7 projecting outwardly from a closed annular body, the aperture having a marginal zone more resistant to wear than the body. The increased resistance may be achieved by hardening by induction or h.f. treatment and may be on the surface only. Or the lug may be coated with chromium or molybdenum by electrodeposition or spraying. Or coating and hardening may be effected. The spring may have hardened inner tongue tips 9. The broken lines indicate the limits of hardening.
Patent GB-945045-A (GB)
Title: Voltage regulating devices for generators
IPC: H02J7/22
Filed: 1961-07-20
Abstract: 945,045. Automatic voltage regulators. FRIEDRICH MENZEL. July 20, 1961 [ April 15, 1961], No. 26431/61. Heading G3R. In a voltage regulator of the type comprising a vibrating contact system 9, 10, 11, 12 in the field circuit 2 of a generator 1 and associated with a voltage coil 5, and further comprising a cut-out relay 30 including voltage and current coils 7, 8 and vibrating contacts 16,17 in the charging circuit of a battery 4, there is provided a temperatureresponsive switch 13 which, when the generator is in danger of overheating causes the generator voltage to be reduced whereby damage to the generator is prevented. The switch 13 is thermally associated with the current coil 8 and has contacts 19 and 20 which, when the maximum permissible temperature is attained, close to switch in a current coil 18 which is connected in parallel with the coil 8. The coil 18, when energized, modifies the action of the coil 5 whereby the output voltage of the generator is reduced.
Patent GB-757575-A (GB)
Title: Device for the prevention of racing of a water turbine having controllable runner blades
IPC: F03B15/18
Filed: 1954-09-13
Abstract: 757,575. Hydraulic turbines. AKTIEBOLAGET KARLSTADS MEKANISKA WERKSTAD. Sept. 13, 1954 [Sept. 15, 1953], No. 26435/54. Class 110(3) [Also in Group XXIX] Racing of a turbine having servomotor controlled runner blades is prevented by a safety device adapted at a predetermined speed to be released and so cause the servomotor to turn the runner blades to their open position. With an increase of speed within allowable limits the runner blades 13, Fig. 1, and guide vanes 35 are moved by the governor 29 towards the closing position. Movement of the runner blades is effected by an oil operated piston 21 located in the hub 11 and mounted on a rod 23 coupled to crank arms on the blades. The shaft 17 connecting the turbine rotor and the generator 19 encloses a tube 25 which supplies oil to the hub from a pipe 26 and carries a pin controlling the operation of the control valve 27. Oil is exhausted from the hub around the tube. The upper end of the tube carries an oil operated piston 41 arranged in a cylinder 43 and connected by a link 45 to a slide valve 47 and a rod 49 resting on a cam 51 coupled to the governor shaft 31. The slide valve 47 controls the oil supply from pipe 53 and the oil flow to and from the cylinder 43. At excessive speeds the weight 59 moves to rotate the arm 63 to allow the spring-loaded slide 61 to move to cut out control by the slide 47 and allow the oil in cylinder 43 to escape with a consequent fall of the piston 41 and movement of the blades 13 to the open position. In a modified control shown in Fig. 2, the governor shaft is coupled to a pivoted member with a curved surface 79 resting on the piston 41. The oil supply to the cylinder 43 and to the rotor hub from a connection 83 passes through a valve containing a spring-loaded valve body 85 normally held in the position shown by the arm 63. At excessive speeds the arm is moved to allow the valve body to restrict the oil supply to leakage through slit 87. The leakage oil opens the oil escape valve 89 and although its pressure is insufficient to support the piston 41 and tube 25 it is sufficient to operate the piston in the rotor hub to move the blades to the open position. Other locations for the servomotor and its control valve than within the runner hub are referred to.
Patent GB-1287257-A (GB)
Title: Cover for elongate light sources
IPC: H01J61/04
Filed: 1971-04-19
Abstract: 1287257 Lighting fittings PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 19 April 1971 [14 April 1970] 26604/71 Heading F4R A light-transmitting plate 1 for a fluorescent lighting fitting has strip-shaped prisms 2 extending in the longitudinal direction and a pair of upright edges 3 parallel to the prisms and provided with grooves 4 which support an electrostatic screen. The screen may take the form of a metallic wire netting 5 or a louvred metal plate (Figs. 2, 3, not shown) which also prevents dazzle. The netting may be embedded in a glass plate.
Patent GB-755181-A (GB)
Title: Improvements in tea trays, card tables and the like
IPC: A47B13/14
Filed: 1954-09-14
Abstract: 755,181. Folding legs. McLAUGHLIN, J. C. Sept. 14, 1954, No. 26628/54. Class 52(3). In a table or tray 1 with pairs of inwardly foldable legs 4 on cross bars 3 pivoted adjacent the end frame bars 2 the cross bars carry a pivoted thumb piece 8, moving in a gate cut in the end frame, by means of which the legs can be locked in their extreme positions or moved from the erected to the folded position. In the folded position the thumb piece is engaged in a horizintal slot 9a in the frame edge and on lateral displacement can pass through a vertical slot as the legs swing down and may then be moved into a lateral slot 9 in the top face, in which position a notch 17 in a radial lug 18 on the thumb piece engages a necked stud 19 on the frame bar 2 to additionally secure the legs in their unfolded position.
Patent GB-973396-A (GB)
Title: Apparatus for froth flotation
IPC: B03D1/16
Filed: 1963-07-05
Abstract: 973,396. Froth flotation apparatus; agitating apparatus; aerating liquids. BOLIDENS GRUVAKTIEBOLAG. July 5, 1963 [Aug. 3, 1962], No. 26768/63. Headings B1C and B2H. A froth flotation chamber has an impeller with blades 23 on a base plate 22, the gap between the ends of the blades 23 and a surrounding array of baffle plates 11 being fed with a curtain of air bubbles from an air supply ring 24. The supply ring comprises three sections supplied from a main 29 by feeders 27 and is preferably of rubber with a bonded soft iron stiffener. The rubber is slitted or slotted underneath, the slitted version allowing the ring to seal itself against backpressure. The ring may carry discharge nozzles. Coarse and fine fractions of pulp are admitted through ports 3 and 4 and leave through ports 6 and 7 to a chamber with an outlet weir 9, 10. Froth is paddled into a launder 16 by rotating blades 15.
Patent GB-264914-A (GB)
Title: Improvements in or relating to tobacco pipes
IPC: A24F5/02
Filed: 1925-10-26
Abstract: 264,914. McLeod, R. Oct. 26, 1925. Tobacco pipes. - For cooling purposes. the wall of the bowl is provided with a series of vertical passages A leading to lateral passages A<1> at. their lower ends.
Patent GB-1283877-A (GB)
Title: A gas discharge tube for a laser
IPC: H01S3/03
Filed: 1971-04-19
Abstract: 1283877 Lasers TURLABOR AG 19 April 1971 [13 April 1970] 26797/71 Heading HlC A laser gas tube, Figs. 2 and 3, comprises a stack of apertured metal discs 14-20 insulated from each other by oxide coatings, and secured together by adhesive or insulated screws 24, 25 with intermediate sealing rings 29, 32, a gas discharge path being provided by central apertures 21 in the discs, while aligned holes 26 grouped about the central apertures provide paths for a liquid coolant, the seals being protected from ultra-violet radiation and ionic bombardment of the gaseous active medium by shoulders 33, 34, 35 formed on the metal discs. The discs are made of aluminium with the oxide coating applied by an anode oxidization process, and the sealing rings may be formed of gold, indium or a plastics material. The active medium may be a single gas or a mixture from the Group Ar, Ne, Kr, Xe and Hg. The discs are assembled in groups, each group 36, 39 having respective inlet and outlet ducts 37, 38 for a coolant such as water. The disc groups 36, 39 are separated by an auxiliary ignition anode disc 57, this disc being made of uncoated aluminium and sealed into the disc stack by sealing rings 59 protected by shoulders 60. Each end of the disc stack is terminated by an outer annular structure 41, 42 providing a conical tapering entry 45 into the gas discharge path formed by apertures 21. A flange ring 52 is movable with respect to this structure, and the two components are coupled together by a metal sealing bellows 53, the arrangement permitting thermal expansion. Each flange ring of the gas tube is secured by screws 51 to a flange 50 of a respective anode and cathode chamber 1, 2, Fig. 1. Each chamber includes a respective annular anode and cathodes 5, 9 and is coupled to a resonator mirror 8, 12. A gas pressure equalizing path is provided by a separate tube 4, but in a modification this component is omitted and certain of the holes 26 in the discs used for this purpose. A low resistance voltage divider (not shown) is connected across the anode-cathode voltage and is regularly connected to the auxiliary anode discs 57 in the stack. A high resistance voltage divider (not shown) is regularly connected to the single discs 14-20, but in a modification connection is made to the coolant paths, the insulating oxide layer on the discs being removed from adjacent the coolant channels 26, 27. In a modification, the gas tube has windows at the Brewster angle.
Patent GB-1186638-A (GB)
Title: Wall-Tie for use in the Construction of Waterproof Walls
Inventor: HALA ALFRED ANTON
IPC: E04B1/76
Filed: 1968-06-05
Abstract: 1,186,638. Cavity wall-ties. A. A. HALA. 5 June, 1968, No. 26851/68. Headings EIB and E1W. A wall-tie 10, comprises a longitudinal tie member 12 having at least one transverse flat member viz plastics disc 14, 16,. slidably disposed therein and means at, at least one of, the ends of the member for securing the member to a wall assembly. A plurality of such wall-ties may be used to interconnect the inner and outer walls of a cavity type wall, with membranes (30, 36 fig. 3 not shown) of waterproof material located between the walls and retained in position by the tie members. A wall reinforcing member comprising a number of such wall-ties connected to two parallel rods, is also described (figs. 5, 6 not shown).
Patent GB-426339-A (GB)
Title: Improvements in or relating to machines for and method of forming packages
IPC: B31B23/00
Filed: 1933-09-29
Abstract: 426,339. Intermittent toothed gearing. STEVENS, A. H., 5, Quality Court, Chancery Lane, London.-(Shellmar Products Co. ; 3501, West 48th Place, Chicago, U.S.A.) Sept. 29, 1933, No. 26872. [Class 80 (i)] [See also Groups XVII and VIII] A Geneva mechanism consists of a disc 140 having holes 141 in which two, three, or more equally spaced pins 142 can be put to operate the star gear 143. Interchangeable locking plates 152 with two, three, or more recesses 155 are used.
Patent GB-1525425-A (GB)
Title: Sustained release forms of certain oxazepines
IPC: A61K9/00
Filed: 1976-06-28
Abstract: 1525425 Injectable compositions of oxazepine derivatives AMERICAN CYANAMID CO 28 June 1976 [16 July 1975] 26914/76 Heading A5B Injectable compositions having antidepressant and antipsychotic activity and a sustained action comprise the free base or pamoate salt of 2-chloro-11-(1-piperazinyl)-dibenz [b, f,] [1, 4] oxazepine or of 2-chloro-11-(4-methyl-1- piperazinyl)-dibenz [b, f,] [1, 4] oxazepine, in an injectable oil at a concentration of 50-400 mg./ml., and a gelling agent (e.g. aluminium mono stearate) at a concentration of 10-100 mg./ml.
Patent GB-738896-A (GB)
Title: Improvements in or relating to concrete and concrete mixes
IPC: C04B28/04
Filed: 1952-10-27
Abstract: A concrete mix comprises cement, sand, mineral aggregate and 1 to 20 per cent (relative to the cement) of authophyllite asbestos, the mix being substantially free from other substances which react with the cement in the presence of water.  The asbestos is preferably of short fibre length.
Patent GB-800849-A (GB)
Title: Improvements in or relating to railway car brake mechanism
IPC: B61H5/00
Filed: 1956-09-04
Abstract: 800,849. Rail vehicle brake transmission. BUFFALO BRAKE BEAM CO. Sept. 4,1956 [Sept. 6, 1955], No. 27068/5R. Class 103 (1). A railway car truck comprises wheels 18 extending coaxially on opposite sides of the truck, a pair of side frames 10 being mounted on the wheels, and means for applying brake shoes 30 to discs 31 rotatable with the wheels, such means including a pair of brake head levers 25 hinged upon the side frames 10 for movement of the brake shoes into or out of braking position, the levers 25, when in braking position, exerting pressure on the side frames 10 through the hinge connections 27 in directions having substantial components transverse to the side frames 10, and a bar 76 extending between the side frames 10 and secured near its ends to the hinge connections 27 respectively, the bar 76, resisting transverse components of the pressures thereby holding the side frames 10 against transverse movement. The brake shoes 30 are pivotally mounted upon brake head pieces 25 which are of L-shape, pivoted at 37 to parallel arms 35, 36. Specification 794,861 is referred to.
Patent GB-1244213-A (GB)
Title: Semiconductor devices
Inventor: BENNETT ROGER FILLMORE CALMEAD
IPC: H01L23/48
Filed: 1968-06-07
Abstract: 1,244,213. Semi-conductor devices. WESTINGHOUSE BRAKE ENGLISH ELECTRIC SEMI-CONDUCTORS Ltd. 19 May, 1969 [7 June, 1968], No. 27144/68. Heading H1K. A semi-conductor device 1 is mounted on a member 2 which rotates about an axis 3 in such a way that the force maintaining non- bonded contacts between the semi-conductor body 4 and, on one face, a contact 20 extending out through a cap 12 of the device housing 5 and, on the other face, a diaphragm-like base portion 18 of the housing is enhanced by centrifugal force generated within parts of the device 1. The cap 12 is preferably sufficiently flexible to permit this enhancement. In the embodiment shown the parts in which the centrifugal force is generated comprise the contact 20 and a steel mass 30 bearing upon the contact 20. Distortion of the diaphragm 18 under the action of the centrifugal force is prevented by the presence of a pedestal 40 on the member 2 to which the device is secured. In a modification the mass 30 is replaced by a spring assembly including Belleville washers which comprise a part of the centrifugal force-generating portion of the device. In both embodiments a third contact 27 is situated coaxially with the contact 20, being urged down on to the body 4 by a spring 28 mounted within the stem section 23 of the contact 20. A ring of desiccant 32 is provided within the housing 5.
Patent GB-426717-A (GB)
Title: Improvements in or relating to ophthalmic mountings
IPC: G02C1/02
Filed: 1933-10-03
Abstract: 426,717. Spectacles &c. AMERICAN OPTICAL CO., Southbridge, Massachusetts, U.S.A. Oct. 3, 1933, No. 27189. Convention date, Oct. 10, 1932. [Class 97 (i)] A lens mount for rimless spectacles &c. comprises a fork embracing the edge of the lens and having projections extending from each side of the base of the fork along the said edge ; and a blade spring attached to the base of the fork between the projections and extending in one or both directions along the edge of the lens to a point beyond the end of the respective projection. In Figs. 2 and 3 the mount comprises a straight part 31 to which the temple piece is attached, arms 36, 37 extending across the faces of the lens, and the member 38 extending in both directions from the base of the fork and having an aperture through which passes an extension 45 of the part 31. Also mounted on the extension 45 between the member 38 and the edge of the lens is a blade spring 47 fitting between the arms 36, 37 and extending beyond the upper edge of the member 38 so that this edge bears on the spring while the lower edge of the member 38 bears directly on the edge 49 of the lens. The spring may, however, extend in both directions so as to lie between both the ends of the member 38 and the edge of the lens. The means for securing the mounting to the lens consists of a tube 42 inserted in an aperture in the lens and containing solder 43 which is heated after assembly. Fig. 5 shows a modification in which the extension 45 has an enlargement 57 entering a notch 58 in the lens, and in which the securing means consists of a screw 59. A washer 60 of cloth &c. is inserted behind the arm 36, this washer having an aperture smaller than the diameter of the screw, so that as the screw is tightened the washer is drawn into the aperture in the lens. The Specification as open to inspection under Sect. 91 comprises also the subject-matter of Specification 427,959. This subject-matter does not appear in the Specification as accepted.
Patent GB-1496786-A (GB)
Title: Melt-embossed polymer film
IPC: B29C48/12
Filed: 1974-06-19
Abstract: 1496786 Perforated plastic sheets SMITH & NEPHEW RESEARCH Ltd 19 June 1975 [19 June 1974] 27218/74 Headings B5A and B5B Net-like plastics material is formed by grooving a sheet on both sides to form two sets of parallel ribs so that at the crossover points of the grooves the sheet is reduced to a thin membrane which ruptures when the sheet is biaxially stretched. In order to produce orientation through the rib sections on stretching and thus ensure greater tensile strength the ratio between the area of the intersection common to two ribs of sets Ia and the cross-sectional area of either rib II is not greater than 2 : 1.