baber/WOPTO huggingface dataset:
Patent GB-233292-A (GB)
Title: Improvements in and relating to apparatus for the rectification of alternating current
IPC: H01G9/16
Filed: 1924-10-07
Abstract: 233,292. Andre, H. G. April 30, 1924, [Convention date]. Addition to 224,871. Wave detectors.- The electrodes used in the apparatus forming the invention of the parent Specification are in the solid state, being reduced to the colloidal state by the alternating current to be rectified. In the form shown in Fig. 1, the container 1 is made of antimonious lead to which the nickel electrode 5 is fixed. The silver electrode 2 is separate from the container by a glass tube 3, and contains the colloidal silver 4 which is in contact with the nickel electrode 5. The liquid 6 is mixed with an agglomerant or covered with a layer of vaseline. The connection 8 to the silver electrode passes through a glass tube 10, and the container is sealed with a cement 11 made of kaolin and vaseline. The container may be made of nickel coated above the level of the acid with an acidresisting material. In the second modification, shown in Fig. 2, the electrodes 2, 5 are in light contact on the surface of an agglomerate 6 of sulphuric acid and powdered pumice, kaolin, glass, &c. contained in a glass tube 1. Instead of a silver electrode, an electrode of graphite may be used, and silicon, antimonious lead or other substance may replace the nickel electrode.
Patent GB-817588-A (GB)
Title: Improvements in or relating to capacitors of the miniature type
IPC: H01G4/228
Filed: 1957-07-26
Abstract: 817,588. Mounting terminals. ILLINOIS CONDENSER CO. July 26, 1957, No. 23728/57. Class 38 (1). In a minature capacitor wherein the capacitor body 21 is located in an open-ended casing 28, a terminal member 20 on the capacitor body is connected to a terminal wire 22 and the point embedded in a cylindrical bead 26 of moulded insulating material, said bead being surrounded by a resilient insulating sleeve 27 on to which casing 28 is compressed at 29 to seal said open end. The bead may consist of casting resin or thermoplastic material, in the latter case being applied to the joint in the form of a sleeve and then heated and compressed into a cylindrical mass. Where it is desired to lead two connections through the open end of the casing, a single bead may be moulded round both joints so as to support them in spaced relationship (Figs. 7-9, not shown). Specification 772,653 is referred to.
Patent GB-424778-A (GB)
Title: Improvements relating to match packets suitable for insertion in cigarette and like cartons
IPC: A24F15/18
Filed: 1933-08-28
Abstract: 424,778. Match packets; cigarette &c. cartons. FERGUSON, R. V. A., 18, Bradda Avenue, Burnside, Glasgow. Aug. 28, 1933, No. 23800. [Classes 18 and 94 (i)] A match packet, suitable for insertion in a cigarette and like carton, is made from a sheet of cardboard &c., doubled over to form a flat back section A, Fig. 1, a front section B covering half or substantially half of the section A, and a flap C foldably attached to the upper edge b of the section B and provided with a striking surface d on its inner surface ; matches E are disposed in the pocket a formed between the sections A, B, with their heads upwards and protruding above the edge b, and the flap C is of such a length that it completely covers the matches when it is folded over them, and provides an outer plain portion d<1> which can be pressed against the section B to hold it firmly and fully exposed when the flap is opened to expose the matches. The matches may be loosely inserted in the pocket a or between the corrugations of a strip in the pocket or a strip of connected matches may be secured to either of the sections A, B or to and between both sections ; a series of packets may be formed from a blank having lines of perforations defining individual packets. The packet may be loosely inserted in the drawer of a carton so that, when the carton is partly opened, the flap C can be folded over the front of the carton and held there while a match is removed and the packet may be made so that at can be detachably interlocked with the covering flap of the drawer of the carton; or the packet may have extensions or lugs on the section A which fit over or within the drawer of the carton so that the packet straddles the drawer and slides therewith when the carton is opened. As shown in Fig. 6, the packet has extensions C<1>, C<2> adapted to fold over the end and part of the back of the drawer of a carton and the extension C<1> may have a striking surface d<2> on the outside. The flap C may have an extension which is folded over the section A and tucked into a slit therein or the top of the flap may be otherwise temporarily fastened to the section A.
Patent GB-1473952-A (GB)
Title: Carburetor for an internal combustion engine
IPC: F02M17/16
Filed: 1974-05-29
Abstract: 1473952 Carburetters AUTOELEKTRONIK AG 29 May 1974 [1 June 1973 17 Jan 1974 19 March 1974] '23834/74 Heading F1B A carburetter comprises an impeller 9, Fig. 1, driven by the air-flow through the mixing compartment 3 and comprising ducts 20 terminating in nozzles 20a through which the fuel, supplied via a duct 18 opening into a fuel compartment 19 within the impeller, is impelled centrifugally at a flow-rate proportional to the impeller speed. The impeller is provided with vanes 11 by which it is driven by the air at a speed proportional to the air-flow rate. Consequently, the fuel flow-rate is proportional to the air-flow rate. Adjustment of the proportionality can be effected by pre-set adjustment of an air by-pass valve 31. The proportionality can be raised in accordance with external conditions by means of an electromagnetic brake 33 which affects the impeller speed. The fuel is supplied by a fuel pump 23 via an overflow chamber 21 in which the fuel level is kept slightly below the level of the nozzles 20a. When the engine is being started, a valve 28 is closed to prevent the overflow, and the pressure in the fuel compartment 19 is then determined by the fuel pump pressure. The nozzles may be located within the vanes 11. The nozzle ducts 20 may extend only through the wall of the impeller body 10, Fig. 5, the centrifugal pumping effect then being augmented by an additional impeller 50 within the fuel compartment 19 and comprising pumping ducts 53 or blades (54), Fig. 7 (not shown). The fuel leaving the nozzle ducts 20 impinges against an atomizer 44. A nozzle (39), Fig. 4 (not shown), may be provided to admit air into the compartment 19.
Patent GB-1140296-A (GB)
Title: Method and means for strengthening and stabilizing compressible soils
Inventor: CASAGRANDE LEO
IPC: E02D3/10
Filed: 1967-05-23
Abstract: 1,140,296. Soil stabilisation. I.C.O.S. IMPRESA COSTRUZIONI OPERE SPECIALIZZATE S.p.A. 23 May, 1967 [23 May, 1966], No. 23837/67. Heading E1F. The load-bearing capacity of an area of soil is improved by forming spaced holes over and/or about the area, installing in each hole an expendable member 23 that extends along the axis of the hole to adjacent the bottom of the hole, filling the annular space between the member and the side wall of the hole with drainage material 24, e.g. sand, and then simultaneously expanding all the members to cause compression of the soil of the area so that water is forced therefrom into the drainage material for subsequent removal therefrom.
Patent GB-1379930-A (GB)
Title: Method of making domestic kitchen utensils
IPC: A47J43/28
Filed: 1972-05-22
Abstract: 1379930 Spoons; slices PRESTIGE GROUP Ltd 21 May 1973 [22 May 1972] 23955/72 Headings A4A and A4D [Also in Division B5] Plastics kitchen cutlery, e.g. a fish slice, ladle, perforated ladle, fork or scraper, is moulded in two materials of different colour (e.g. polycarbonate or melamine resin) so that viewed from one elevation the utensil appears to be of one colour outlined by the other colour 47 (see also Division B5), Holes 40 may also be outlined.
Patent GB-603731-A (GB)
Title: Improvements in cartons and blanks, anchorage of flaps thereof and method of sealing
IPC: B65D5/02
Filed: 1945-09-17
Abstract: 603,731. Closing cartons. CUPO, W. J. Sept. 17, 1945, No. 23988. Convention date, Sept. 1, 1944. [Classes 18 and 94(i)] The closing flaps 15, 16, 17 are drawr together by suctior (after applying adhesive), the outer flaps 15, 16 being made porous or provided with holes 19 The same method may be used on other parts of a carton; for instance the opposite end may be sealed by means of a suction head inserted into the carton (before filling).
Patent GB-852487-A (GB)
Title: Improved polyamide moulding compositions
IPC: C08K5/20
Filed: 1958-07-25
Abstract: A polyamide moulding composition comprises superpolyamide granules coated with from 0,005 to 0,1% by weight based on the weight of the granules of a monoamide or ethylenebis-amide of a monocarboxylic acid containing 12 to 20 carbon atoms.  Specified polyamides are polyhexamethylene adipamide, polyhexamethylene sebacamide, polycaprolactam and copolymers of hexamethylene diamine with adipic acid, sebacic acid and caprolactam.  Specified monocarboxylic acid amides are lauramide palmitamide, myristamide, stearamide, 1, 2-ethylene - bis - stearamide, 1, 2 - ethylenebis - mynstamide and 1, 2 - ethylene - bis palmitamide.  The compositions may be prepared by dry-blending. The examples describe the coating of polyhexamethylame adipamide granules with 1, 2 - ethylene - bis - stearamide and the moulding of the resultant compositions.  Specifications 461,236 and 461,237 are referred to.ALSO:A polyamide moulding composition comprises superpolyamide granules coated with from 0.005 to 0.1% by weight based on the weight of the granules of a monoamide or ethylene-bis-diamide of a monocarboxylic acid containing 12 to 20 carbon atoms.  Specified polyamides are polyhexamethylene adipamide, polyhexamethylene sebacamide, polycaprolactam and copolymers of hexamethylene diamine with adipic acid, sebacic acid and caprolactam. Specified monocarboxylic acid amides are lauramide, palmitamide, myristamide, stearamide, 1,2-ethylene-bis-stearamide, 1,2-ethylene-bis-myristamide and 1,2-ethylene-bis-palmitamide. The compositions may be prepared by dry blending.  The examples describe the coating of polyhexamethylene adipamide granules with 1,2-ethylene-bis-stearamide and the moulding of the resultant compositions.  Specifications 461,236 and 461,237 are referred to.
Patent GB-367306-A (GB)
Title: Improvements in and relating to electric circuits for shifting the phase of an alternating potential
IPC: H02M1/04
Filed: 1931-08-26
Abstract: 367,306. Phase shifting; converting. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Bedford, B. D. ; 329, Germania Avenue, Schenectady, New York, U.S.A.) Aug. 26, 1931, No. 24019. Convention date, Aug. 27, 1930. [Class 38 (ii).] Means for obtaining a voltage adjustable in phase by more than 180‹ with respect to that of the supply source 12 comprises two circuits connected in parallel across the supply each circuit comprising mixed impedances at least one of the impedances in one of the circuits being adjustable. In the form shown, one of the circuits comprises a resistance 16 in series with a resistance 17 and inductance 18 in parallel. The other circuit comprises an inductance 20 in series with a variable resistance 19. The dephased voltage occurring between intermediate points in the two circuits is thus rendered adjustable as regards phase angle by more than 180‹ and may be applied as shown to the grids of a mercury vapour or other valve converter used for interchanging power between a D.C. circuit 10 and an A.C. circuit 11. Modifications are described in which other combinations of impedances some of which are capacitative are used in the two parallel circuits.
Patent GB-648504-A (GB)
Title: Improvements in and relating to set screws and grub screws
IPC: F16B35/00
Filed: 1948-09-14
Abstract: 648,504. Spigot and socket joints. WILLIAMS, H. M. Sept. 14, 1948, No. 24048. [Class 99(i)] [Also in Group XXV] Relates to spigot and socket joints as described with reference to electric conduits, and consists in a construction of grub-screw that is self-tightening under tension tending to separate the joints. The screw has an annular edge formed with socket-like teeth 6 for engaging the spigot 3. The screw is lapped into the socket 4 and the teeth trail in the direction of screwing up. Pull on the parts causes one or more teeth to dig in with consequent tightening of the clamping action. The teeth are preferably hardened. The driving recess may extend through the screw and be polygonal in cross-section. The edges 9 of the teeth may be parallel to the axis or may have positive rake. The driving screw may be of the form described in Specification 637,683, [Group XXV].
Patent GB-634291-A (GB)
Title: Improvements in and relating to apparatus for making electric discharge devices
IPC: H01J9/395
Filed: 1944-12-01
Abstract: 634,291. Metal-vapour discharge apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 1, 1944, No. 24049. Convention date, Dec. 1, 1943. [Class 39 (i)] [Also in Group XL (b)] Apparatus for feeding doses of a vaporizable metal such as mercury into an electric discharge device whilst it is suitably exhausted, comprises an auxiliary arrangement responsive to the magnitude of current passing through an electrode of the device for automatically interrupting the operation of the feeding apparatus when sufficient vaporizable metal has been mtroduced. The mercury feeder 32 on the exhaust head 19 supplies mercury by means of a piston 39 actuated by a solenoid 45. The solenoid is lowered intermittently over the bell housing 40 by an actuating mechanism 50, 49, 48 driven from shaft 47, which also drives cam 56 to close solenoid circuit 54 and thus actuate the mercury feeder. When sufficient mercury has been introduced a local arc strikes across the electrode 15, or 15<1>, of the electric discharge lamp 13, and sufficient current flows in circuit 42 to operate relay 58, so opening the solenoid circuit 54 and preventing any further injection of mercury. The relay 58 is preferably photo-electrically controlled by a lamp 44 in series with electrode 15 or directly by the brightness or colour of the arc striking across the electrode, or the relay 58 may be controlled directly by the current in the heating circuit of electrode 15. The electrode has a resistance such that the potential drop across it exceeds the ionizing potential of the mercury. The exhaust head may occupy one station in the lamp exhaust machine of Specification 543,079. The mercury feeder 32 is similar to that described in Specification 581,656, [Group XVIII].
Patent GB-758792-A (GB)
Title: Improvements in and relating to thermal power plants
IPC: F02C9/24
Filed: 1954-08-18
Abstract: 758,792. Gas turbine plant. AKT.-GES. FUR TECHNISCHE STUDIEN. Aug. 18, 1954 [Sept. 10, 1953], No. 24081/54. Class 110(3) In a thermal power plant having a closed air circuit and intended to be run at low potential load for a substantial part of the operating time, the power output being altered by varying the pressure level in the circuit, the pressure level at low partial load is such that the pressure at one point of the circuit is below atmospheric pressure, thereby allowing leakage losses from the circuit to be compensated for by the admission of atmospheric air at this point. At high load, the minimum pressure in the circuit is above atmospheric pressure. In the marine power plant shown, air compressed by a compressor 6 flows by way of a heat-exchanger 4 and a heater 1 to a high-pressure turbine 2 driving the compressor and a low-pressure turbine 3 driving a propeller 7. The exhaust air from turbine 3 returns to the inlet of compressor 6 by way of the heatexchanger 4, where it preheats the compressed air, and a cooler 5. At low partial load, the pressure at the point 21 is subatmospheric, so that leakages losses from the circuit can be compensated for by admission of atmospheric air through valve 23 and pipe 22. The pressure level of the circuit can be raised, for the purpose of increasing the power output by drawing air either from an accumulator 18 or from compressors 9 and introducing it, by way of a valve 15 and pipe 14, at a point 16. When the pressure level is to be lowered again, air is bled from the circuit into the accumulator 18 by way of pipe 20 and valve 19. Accumulator 18 may also be charged by the compressor 9. The power plant is started by a turbine 8 which is driven by compressed air from the compressors 9 and accumulator 18, supplied through valve 13 and pipe 12. The exhaust air from the turbine 8 is either passed to atmosphere through a valve 24 or is introduced into the circuit at a point 27 through a pipe 26 and valve 25. The compressors 9 are driven by diesel engines or may be of the free-piston type. In a modification, the starter turbine 8 is a gas turbine, driven by gas from a combustion chamber.
Patent GB-701831-A (GB)
Title: Process for the production of suppositories containing medicaments
IPC: A61K9/02
Filed: 1951-10-16
Abstract: Suppositories containing 20-50 per cent by weight of a crystalline medicament other than water-soluble calcium salts of water-soluble fatty acids containing not more than 6 carbon atoms in the molecule or calcium lactate or calcium sodium lactate, are prepared by grinding the medicament in a vibrating mill to a particle size of 1-10 microns, and then incorporating the powder in the molten suppository base at 40-60 DEG C.  If necessary, the crystalline solids are dried or dehydrated before grinding. Specific examples of substances which are first so treated are: Cobalt salts such as cobalt chloride and cobalt sulphate, sodium nicotinate, salts of theophylline, codeine phosphate, codeine hydrochloride, salts of barbituric acid, calcium acetate-calcium chloride double salt, and ferrous sulphate.  Other finely divided medicaments may be incorporated in the suppositories for the purpose of rendering a medicament more soluble in the base or therapeutically more effective.  Specified combinations are (a) ferrous sulphate, ascorbic acid and cocoa butter, with or without the further addition of cobalt sulphate; (b) theobromine sodium salicylate, theophylline, papaverine, sodium phenyl ethyl barbiturate, calcium acetate and cocoa butter; (c) 4-dimethylamino-1-phenyl-2, 3-dimethyl pyrazolone, 1-phenyl-2, 3-dimethyl pyrazolone, codeine phosphate (or codeine hydrochloride), calcium acetate and suppository base; (d) magnesium acetate, magnesium propionate and cocoa butter; and (e) calcium acetate, nicotinic acid amide and ascorbic acid and cocoa butter. Other specified substances are sodium salicylate, pacetyl phenetidine, bromoisovaleryl carbamide, bromodiethylacetyl carbamide, hydantoins, quinine hydrochloride and the sulphonamides. Specifications 683,192 and 689,722 are referred to.
Patent GB-882190-A (GB)
Title: Improvements in or relating to envelopes for electrical devices
Inventor: POOLE FREDERICK EDWARD
IPC: H01J5/32
Filed: 1959-07-14
Abstract: 882,190. Vitreous-metal seals. GENERAL ELECTRIC CO. Ltd. July 4, 1960 [July 14, 1959], No. 24173/59. Class 36. [Also in Group XI] . In a sealed lead-in conductor for a fused silica lamp (see Group XI), at least that part 6 of the seal conductor which extends out of the envelope is sheathed with platinum to prevent atmospheric oxidation at the seal entry. The sheathing is provided by inserting a conductor of molybdenum or tungsten, or an alloy of one of these, into a tube of platinum and subsequently drawing down the composite rod to produce a strip or wire of small diameter. The wire may be subsequently cold rolled to form a strip. A molybdenum strip 4 connected to the filament 2 and the composite conductor 6 are spot welded to a molybdenum foil 5 which has been etched to produce feather edges for pinch sealing. Foil 5 may be 0.07 mm. thick, strip 4 0.1 mm. thick and strip 6 0.2 mm. thick. Specification 817,908 is referred to.
Patent GB-1267404-A (GB)
Title: Improvements in and relating to electro-photographic copying methods and arrangements
IPC: G03G15/04
Filed: 1969-05-12
Abstract: 1,267,404. Electro-photographic processes. RICOH K. K. May 12, 1969 [May 21, 1968], No. 24180/69. Heading G2H. A chargeless electro-photographic process comprises coating a photo-conductive sheet with an insulating liquid and thereafter imagewise exposing to produce an electrostatic latent image. The image may then be developed by toner in a liquid carrier. It is stated that such a coating process produces a soft tone developed image, whereas the prior art method of coating after exposure and before development produces a hard tone. Apparatus for selectively coating before or after exposure comprises rollers 9, 10 supported by a pivoted lever 8 and partially immersed in insulating-liquid tanks 6, 7. A sheet 4, transported by a suction carriage 5, is exposed at 4A; being pre- or after-treated with insulating liquid by operating a rod 8a.
Patent GB-1211510-A (GB)
Title: Strand of thermoplastic synthetic resin
IPC: D01D5/24
Filed: 1969-05-13
Abstract: 1,211,510. Hollow thermoplastic filament. BARMAG BARMER MASCHINENFABRIK A.G. 13 May, 1969 [22 May, 1968], No. 24229/69. Heading B5B. A strand (defined as a monofilament having a diameter of from 0À8 mm. to 8 mm. in a stretched state) of thermoplastic synthetic resin has a continuous coaxial cavity of uniform cross-section whose area constitutes from 0À2% to 15% of the total cross-sectional area of the strand. Preferably the strand is of circular cross-section, and the cross-sectional area of the cavity constitutes from 0À5% to 10% of the total cross-sectional area. The strand is made by extrusion from a monofilament die in which a fine hollow tube is coaxially arranged, the interior of the tube communicating with the external atmosphere. Typically the internal diameter of the die is 8-10 mm. and the external diameter of the tube is 1-2À5 mm. The extruded hollow monofilament is cooled in a liquid bath, e.g. water at between 20 and 50 C., placed some 60-80 mm. from the die, and is then stretched in a hot air zone. The draw ratio is adjusted to produce the required cavity area proportion, typical draw ratios being 1: 7 and 1: 4. Specified materials are polypropylene and polyamide 6.
Patent GB-1433057-A (GB)
Title: Chairs
IPC: B60B33/00
Filed: 1973-05-22
Abstract: 1433057 Castors; sliders PARNALL & SONS Ltd 11 April 1974 [22 May 1973]  24300/73 Heading A4U A leg assembly, e.g. for an office chair, comprising a horizontal elongate tubular leg 10, a plug 11 in the end of the leg and having a bore aligned with an aperture 15 in the leg, and a ground engaging member 13 having a pintle 14 extending through the aperture 15 into the bore whereby the plug is retained in position. The member 13 may be a castor or a slider, Fig. 7 (not shown). The leg 10 may be oval, circular,  square or rectangular in cross-section, and the plug 11 may be plated or otherwise decorated and it may be formed from plastics material, e.g. nylon or acetal, diecast aluminium or zinc alloy, or sintered metal. The plug may be lightened by recessing and ribbing in the part which fits into the leg. The pintle may be secured in the bore of the plug by adhesive. Alternatively, the pintle may have a reduced neck adjacent its upper end for snap-engagement by pips on the plug extending into the bore, Fig. 3 (not shown), or it may be a self-tapping screw, Fig. 4 (not shown), or it may have a spring collar which expands radially to grip within the bore, Fig. 5 (not shown). The lower wall of the leg may be deformed locally round the aperture upwardly into a recess in the lower side of the plug surrounding the bore, Fig. 6 (not shown). The plug may be split longitudinally so that insertion of the pintle into the bore expands the plug.