baber/WOPTO huggingface dataset:
Patent GB-1112988-A (GB)
Title: Improvements in or relating to friction fuzes
IPC: F42B3/117
Filed: 1966-10-28
Abstract: 1,112,988. Friction fuzes. DYNAMIT NOBEL A.G. 28 Oct., 1966 [28 Oct., 1965], No. 48574/66. Heading F3A. A friction fuze comprises a casing 1, a helically wound friction wire 5 passing through a friction primer 4a in a cup 4, polytetrafluorethylene discs 2 and 3, and an ignitable charge 8 separated from the primer by a large particle 6 and a number of smaller particles 7 made of low melting material e.g. lead, Devanda's alloy or Wood's alloy. The charge 8 facesa pyrotechnic mixture (not shown) such as a powder charge, smoke charge or safety fuze. When the friction wire 5 is pulled out from the fuze the primer 4a ignites the charge 8 and the heat developed melts the particles 6 and 7, the opening in the casing through which the wire has been withdrawn being sealed by the molten mass solidifying in the region of the opening. The particle 6 has a cross-seotional area of at least 80% of the internal cross-sectional area of the casing. The charge 8 consists of 60 parts of lead dioxide and 40 parts of metallic silicon.
Patent GB-1413034-A (GB)
Title: Axial piston pump
IPC: F04B1/14
Filed: 1973-10-18
Abstract: 1413034 Linkwork COMPAGNIE DES SERVICES DOWELL-SCHLUMBERGER 18 Oct 1973 [20 Oct 1972] 48691/73 Heading F2K [Also in Division F1] A swash-plate 44 acts via connecting rods 53 on pistons 56 of a pump or compressor (see Division F1), the swash-plate being supported by bearings 45-47 on a rotary shaft 33 having an inclined surface 32, and being prevented from rotating by a rod 74 connecting the swashplate to a casing 16 and arranged in relation to the direction of rotation of the shaft so as to be under compression. Lubricant for the connecting rod joints is supplied by a pump 76 via a passage 79 through rod 74 and passages 80-85 in the swash-plate and connecting rods. Shaft drive gearing 36, 37 may be replaced by epicyclic gearing for a coaxial input shaft.
Patent GB-1368317-A (GB)
Title: Bulk yarn and process and device for obtaining this yarn
IPC: D02G1/16
Filed: 1971-10-21
Abstract: 1368317 Bulk yarns; fluid nozzles RHONEPOULENC-TEXTILE 21 Oct 1971 [22 Oct 1970 (2) 9 Dec 1970] 49005/71 Headings D1F and D1W A bulk yarn made of natural, artificial or synthetic textile material has interlaced filaments which are substantially free from loops and other visible convolutions not forming part of loops or convolutions in the yarn as a whole, and has alternating open and compact zones, the spacing between the open zones being 5-50 mm, the specific volume of the open zones being at least twice that of the compact zones and the open zones being substantially spindle-shaped. The filaments being randomly distributed within the open zones. The average length of the compact zones being less than that of the open zones. Some filaments may be broken in the open zones to give protruding filament ends. The yarn may be formed from two starting yarns of the same or different fibre materials, and may be produced as a core yarn. A process for producing such a yarn comprises feeding at least one yarn at at least 200 metres per minute, under substantially no tension and without rubbing, axially through a nozzle 1 comprising three successive coaxial cylindrical portions 4, 5, 7, of which the middle portion 5 is of a greater diameter than either of the other portions 4, 7, and introducing pressurised fluid into the portion 5 in the form of a stream passing through a conduit 6 at an acute angle to the direction of travel of the yarn through the portion 5. Two yarns may be fed to the nozzle, one being overfed relative to the other to produce a core yarn. In a preferred embodiment, the yarn is passed through an interlacing nozzle after leaving the above described nozzle. The yarn produced is taken-up on a ring and traveller spinning machine or a surface driven package winder. When two yarns are employed, one yarn is preferably fed at a controlled speed which may be intermittently varied. A nozzle most suitable for use in the process of the invention comprises three successive coaxial cylindrical portions 4, 5, 7 (see Fig. 4), of which the middle portion. 5 is of greater diameter than either of the other portions, a conduit 6 arranged at an acute angle to the direction of travel of the yarn through the middle portion and connected to the middle portion 5, the first upstream reduced diameter portion 4 including a tube 19 which is adjustable in position relative to the other portions, for example by means of a screw 20.
Patent GB-1280467-A (GB)
Title: Circuits for track guided air cushion vehicle propulsion system
Inventor: JARVIS EDWARD ALFRED KEITH
IPC: B60V3/04
Filed: 1968-10-16
Abstract: 1280467 Control of motors TRACKED HOVERCRAFT Ltd 9 Oct 1969 [16 Oct 1968] 49019/68 Heading H2J  A track-guided air cushion vehicle comprises a linear induction motor stator 15 which cooperates with a reaction rail for propelling the vehicle, at least one D.C. fan motor 9 for supplying pressurized air for the air cushion, and an inverter 20 for converting a main D.C. power supply to A.C. for the stator 15. A portion of the unit 20 is adapted to be used as a D.C. chopper to provide increasing voltage to start the fan motor. When contactor 34 is opened and contactor 38 is closed, diode 29 and thyristor 26 within the inverter section 31, together with the armature 32, supplemented by inductor 30, form a chopper circuit wherein the diode 29 passes load current during "off" periods of the thyristor 26. To start the fan motor, a controller 50 cuts-off all the thyristors 26, 27, except for the thyristor 26 in the part 31 which is regulated to increase the motor voltage. When the fan motor reaches full speed, contactor 38 is opened and contactor 34 closed to connect the fan motor across the main D.C. source. Thereafter, the controller 50 receives a signal to adjust the frequency of the inverter.
Patent GB-1444694-A (GB)
Title: Stoving articles
IPC: B41F23/04
Filed: 1974-11-12
Abstract: 1444694 Stoving painted articles AIRINDUSTRIE 12 Nov 1974 [15 Nov 1973] 49020/74 Heading F4B In a stove 29, e.g. for stoving freshly painted car bodies, the ventilating air together with the solvents given off by the car bodies are evacuated to a burner for burning the solvents, the hot combustion products being used in part to form hot gaseous curtains 27, 28 at the entrance 2 and exit 3 of the stove, and in part in a heat exchanger 33 for heating the ventilating air 36. Ventilating air is drawn off at 4 by a fan 7 and passed to a burner 5 in a combustion chamber 8. The buner is fed with supplementary fuel over line 10. The combustion products pass through a heat exchanger 13 to heat the incoming air and then to mixers 17, 18, and through another heat exchanger 33 to mixers 30, 31. Fresh air is forced by fan 26 to the mixers to provide the hot curtains 27, 28 at the entrance and exit, and second curtains 46, 47 further in, the mixers being so adjusted that these curtains are hotter than the outside ones 23, 24. Air is drawn out of the stove at 35 and passed by blower 38 through the heat-exchanger 33 where it is heated, being then returned to the stove at 36.
Patent GB-1156212-A (GB)
Title: Power Amplifier
IPC: H03F3/20
Filed: 1966-11-02
Abstract: 1,156,212. Semi-conductor diode amplifying and pulse modulation circuits. BUNKERRAMO CORP. 2 Nov., 1966 [8 Nov., 1965], No. 49137/66. Headings H3T and H4L. A power amplifier comprises two charge storage diodes DS1, DS2 in series and similarly poled. A pump source provides two antiphase sine wave signals at 24, 26 respectively to alternately apply forward and reverse biases to both charge storage diodes. During the forward bias the diodes store charges of different magnitudes in each diode, dependent on the value of the input signal 28, and during the subsequent reverse bias, the diodes DS1, DS2 conduct until the charges are neutralized. The diode containing the least charge is neutralized first, and then the current still flowing through the other diode flows into the load R L  to provide the amplified output signal. The diodes DS1, DS2 have a slight reverse D.C. bias so that the reverse bias period is both greater and longer in time than the forward bias, thus ensuring that all stored charge is neutralized before the end of the reverse bias period. Preferably, the arrangement is such that with zero input, all charge is neutralized mid-way through the reverse bias period. The amplifier may be used for sampling analogue input signals, the pump source frequency being greater than the input signal frequency, or for digital signals, the input and pump frequencies being equal and synchronized. The circuit is capable of amplifying broad-band input signals up to microwave frequencies. In a multi-stage amplifier (Fig. 4, not shown), using such circuits, the high output impedance of one stage is coupled to the low input impedance of the next stage by a tapered transmission line transformer.
Patent GB-1115660-A (GB)
Title: Improvements in automatic tracking systems for high frequency aerials
IPC: H01Q25/02
Filed: 1965-11-22
Abstract: 1,115,660. Radio direction-finding. COM. PAGNIE GENERALE D'ELECTRICITE. 22 Nov., 1965 [20 Nov., 1964], No. 49553/65. Heading H4D. [Also in Division H1] In a control system for an aerial such as an electromagnetic horn received signals are fed by that aerial into a circular waveguide 1, in which waves of both the TE 11  and TE 21  modes can be sustained. Pairs of cavities C 1 , C 2  and C3, C 4  are located at, the ends of diameters 2, 3 of the circular waveguide 1, said diameters being co-planar and at an acute angle to each other, and power is coupled into each cavity from the circular waveguide by means of an excitation aperture e, Fig. 3 (not shown). The cavities C 1 , C 2 , C 3 , C 4  in turn excite rectangular waveguides G 1 , G 2 , G 3 , G 4 , respectively, by means of apertures e<SP>1</SP> 2  and said waveguides are connected in pairs G 1 , G 2  and G 3 , G 4  to the inputs of" magic T's " M' 1 , M 2 , respectively. The difference outputs d 1 , d 2 , of'the magic T's M 1 ', M 2  are combined by a " hybrid T T 1 , a Œ#/2 phase shifter D 1  being connected in the line from the "magic T"M 1  The sum outputs s 1 , s 2  of the " magic T's " M 1 , M 2  are taken through attenuators A 1 , A 2 , providing attenuations of ¢ and #2/2, respectively, and are combined by a network comprising " hybrid T's "T 2 , T 3 , T 4  a # phase shifter D 2  and a Œ#/2 phase shifter D 3 . The resulting combined " sum " and "difference" " signals are used to control servo mechanism for pointing the aerial towards its target. In an alternative arrangement, four pairs of cavities located at the ends of four co-planar diameters are provided. Two pairs of cavities on diameters at a first acute angle to each other are used to extract signals carried in the waveguide by the TE 11  mode and two pairs of cavities on diameters at a second acute angle to each other are used to extract signals carried in the waveguide by the TE 21  mode.
Patent GB-955798-A (GB)
Title: Improvements in document filing systems
IPC: B42F15/04
Filed: 1960-05-02
Abstract: 955,798. Filing papers. O. A. BECKER. May 2, 1960 [April 30, 1959], No. 49667/63. Divided out of 955,797. Heading B6E. A folder for filing documents has two side walls and a base forming a U-shaped enclosure for the documents, the effective width of the base being variable. In one embodiment, applied to a suspension filing device, side walls 128 of double thickness receive a base 129 constituted by an extension of one thickness of one side wall received between the pocket formed by the other wall. Each side wall is folded at 127 and has slits 126 for the reception of carrier strips 125 which support base 129 and urge the side walls together. The width of the base is varied by the depth of insertion of the strip 125. Wire stirrups 130 permit the folders being pulled out from supporting panel 131. In a modification, zig-zag spring strips 120, Fig. 5 (not shown) support the base of the folder, the side walls being urged together by springs 122. In another embodiment, side walls 102, Fig. 6, the base is formed of sheets 97, 98 supported on crossed wires 99, 100 end portions 99b, 100b of which engage horizontal slits. In a further embodiment, a slide 109, Fig. 8 (not shown), attached to wires 99 is slidable in a rail 110. The slide 109 is attached to a spring 105. In another embodiment, side-walls 89, Fig. 10, are provided with an extension forming a base 89a. A downward extension 91 of metal, celluloid, plastic, or cardboard of each side wall has recesses 92. The recesses are L-shaped and receive wires 94. Springs 95 are provided for biasing the side walls of the folder together.
Patent GB-1223245-A (GB)
Title: Improvements in or relating to machine tools
IPC: B23C3/30
Filed: 1969-10-14
Abstract: 1,223,245. Milling. GOTAVERKEN AB. 14 Oct., 1969 [4 Nov., 1968], No. 50412/69. Heading B3K. A machine tool for making serrations in juxtaposed parts of the connection surfaces of bearing components 11, comprises a support 10, a tool head comprising a bevel gear-box 12 shaped to fit into the recess defined by the bearing surface 15, two laterally extending milling cutters having a serrating cutting profile, means for relatively displacing the tool head and support in the longitudinal direction and means for relatively displacing them transversely by one half of the pitch of the pitch of the serrations when a first half of a bearing has been machined and the matching half is to be machined.
Patent GB-1125639-A (GB)
Title: Clarification process
IPC: C02F1/54
Filed: 1966-11-11
Abstract: 1,125,639. Clarifying water. NALCO CHEMICAL CORP. 11 Nov., 1966- [1.6 Nov., 1965], No. 50669/66. Heading C1C. Water containing suspended solids and at least 0À1 p.p.m. of residual free chlorine is clarified by dissolving from 0À1 to 10 p.p.m. a polyquaternary compound in the water and thereafter separating- the solids from it. The polyquaternary compounds are polymers which contain a plurality of basic nitrogen sites in the form of quaternary groups; and may be prepared by polymerizing a basic quaternary ammonium monomer, or by alkylating alreadyformed polyamine compounds.
Patent GB-1215618-A (GB)
Title: Pressure-sensitive record sheet material
IPC: B41M5/155
Filed: 1968-10-25
Abstract: 1,215,618. Coating compositions. NATIONAL CASH REGISTER CO. 25 Oct., 1968 [2 Nov., 1967; 2 July, 1968], No. 50770/68. Heading C3R. [Also in Division D2] A composition comprising a powdered oilsoluble acidic phenolic polymer, powdered kaolin clay and a binder is used as one coating of a pressure-sensitive record sheet (see Division D2). The phenolic polymers may be condensates of an aliphatic or aromatic aldehyde, e.g. formaldehyde, benzaldehyde, with one or more para-substituted phenols. The condensates may have 3-8 recuring phenolic units. The para-substituent may be C 1 -C 12 , normal, isotertiary, cyclo, alkyl, aryl, aralkyl or alkaryl. Preferred examples are p-methyl; p-ethyl; p-n-propyl; p-isobutyl; p-t-butyl; p-n-aryl; p-n-hexyl; p-cyclohexyl; p-n-heptyl; p-n-octyl; p-iso-octyl; p-1,1,3,3, tetramethyl butyl; p-nnonyl; p-decyl ; p-undecyl; p-phenyl; p-benzyl; p-tolyl phenols and isomers of these. The binder may be starch, a latex, or gum arabic. The latex may be styrene-butadiene rubber or butyl rubber, and powdered calcined kaolin clay, calcium carbonate, a Group 2A, 2B or transition metal salt, polyvinyl alcohol, and silica may also be present.
Patent GB-1249883-A (GB)
Title: A method of and apparatus for mixing and sub-dividing a large sample of material to obtain a smaller sample
Inventor: TOROK LASZLO
IPC: B01F29/63
Filed: 1968-10-25
Abstract: 1,249,883. Sampling apparatus. APRITOGEPGYAR. 25 Oct., 1968, No. 50849/68. Heading B8N. [Also in Division B1] Sampling apparatus comprises a rotatable drum 11 provided with baffles 3-6 arranged such that when the drum is rotated in one direction, material within the drum is lifted by the baffles 3 and guided by baffles 5, 6 to. fall into the centre of the drum thus being mixed, and when rotated in the opposite direction, material in the drum is split into two portions, each of which is guided by baffles 4 out of openings 7, see Fig. 2, in the side faces 1 of the drum. The portions are discharged into similar mixing drums (not shown), one on each side of drum 11, and the mixing and dividing procedure is carried out on each portion. Of the two divided portions formed in each side drum, one is returned to the central drum 11 to be further mixed and sub-divided, and the other is rejected. By repeated mixing and division in this way, a representative small sample suitable for testing purposes may be obtained from a large initial sample.
Patent GB-1125989-A (GB)
Title: Continuous production of alpha plaster
IPC: C01F11/46
Filed: 1966-11-15
Abstract: 1,125,989. Alpha plaster. CONZINC RIOTINTO OF AUSTRALIA Ltd. 15 Nov., 1966 [26 Nov., 1965], No. 51092/66. Heading C1A. This invention comprises process and apparatus for the production of alpha plaster from gypsum. Particulate gypsum, in a slurry with water, is passed into a heated chamber, pressurized with steam and water and at a temperature between 110‹ and 125‹ C., for a time sufficient to substantially convert the particles of gypsum into fine crystals of alpha hemihydrate, then transferring the reacted slurry to another or other chambers at higher pressure and temperature, but not above 180‹ C., and allowing sufficient residence time for the minute crystals of alpha hemihydrate to grow, then removing the calcined material and dewatering and drying while still maintaining a temperature high enough to prevent substantial rehydration of the alpha plaster until it has dried. Apparatus for this process are described in three variations, one consisting of two interconnected rotating chambers, a second consists of two vertical chambers, placed one above the other, which have baffle discs and baffle rings to control the flow of slurry. The third alternative described consists of two vertical pressure chambers in which the slurry is pumped tangentially into the first chamber and then passes on through a connecting pipe into the second chamber which it again enters tangentially. Additives may be present in the initial slurry.
Patent GB-1073150-A (GB)
Title: Improvements relating to the provision of annular sealing members at the ends of spigot-and -socket pipe sections
Inventor: MEDD JOHN PETER
IPC: B29C70/76
Filed: 1964-12-16
Abstract: 1,073,150. Moulding sealing elements. DOULTON & CO. Ltd. Nov. 26, 1965 [Dec. 16, 1964], No. 51177/64. Heading B5A. [Also in Division F2] An annular sealing element is moulded on to a spigot or socket end of a pipe by using a mould comprising a flanged disc 11, 12 mounted on a shaft 14 and located so that the flange surrounds the end of the pipe which is centered by a radially expandable merchant locating member 13. The cavity between the flange and the pipe is then filled with elastomeric material, e.g. a polyurethane rubber mix. If the sealing element is to be applied to a socket end the flanged disc is within the socket and the centring member is on the opposite side of the disc from the flange, a coaxial second expandable member seals the bottom of the mould cavity.
Patent GB-1369344-A (GB)
Title: Process for chromising iron and ferrous alloys
IPC: C23C10/42
Filed: 1972-11-07
Abstract: 1369344 Chromising Fe and ferrous alloys TOYOTA CHUO KENKYUSHO K K 7 Nov 1972 [16 Nov 1971] 51230/72 Heading C7F Iron and ferrous alloys are chromised by packing in a powder containing 0À5-80 wt. per cent of at least one alkali metal tetrafluoroborate and 20-99À5 % metallic chromium or ferrochromium and heating, for ¢ to 30 hours at 550-1200‹C. The layer formed is of Cr carbide or Fe-Cr solid solution depending on the C content of the steel and/or ferrochromium; the fluoroborate may be of K, Na, or NH 4  and an inert refractory such as Al 2 O 3 , SiO 2 , BN or Croxide may be added to the pack, which may be used in air or an inert gas atmosphere; typical powder sizes are <40 mesh (ASTM).
Patent GB-1025358-A (GB)
Title: Improvements in or relating to bathroom cabinets
Inventor: KUSEL STANLEY DE
IPC: A47B67/00
Filed: 1963-12-31
Abstract: 1,025,358. Bathroom cabinets; mirrors. IFCO Ltd. Dec. 30, 1964 [Dec. 31, 1963] ,  No. 51360/63. Headings A4H and A4V. A bathroom cabinet comprises cupboards 1, 2 on a base board 3, and a mirror 7 pivotally mounted between the cupboards each mounting consists of a socket 9 secured to a cupboard and having a vertical channel to receive a rectangular plate 10 which is pivoted in a socket 11 secured to the mirror. The plate 10 is withdrawable in an upward direction from the socket 9 to detach the mirror from the cupboards. The base board has resilient studs 4 and, in modifications, the mirror is pivoted on a horizontal axis on the base board 3 or a back board, a mirror is provided on the outside or inside of one or both cupboard doors, or the cabinet is wall mounted.
Patent GB-1117063-A (GB)
Title: N-substituted ortho-aminoarylketimines
IPC: C07D243/14
Filed: 1965-06-14
Abstract: Compounds having, in one tautometic form, the general formula <FORM:1117063/C2/1> (in which R1 is a hydrogen or halogen atom, a trifluoromethyl group, a C1- 7 alkyl or alkoxy group or a nitro or amino group, R2 is a phenyl group which may be substituted by a halogen atom, by a trifluoromethyl or nitro group or by a C1- 7 alkyl or alkoxy group, or is a C1- 7 alkyl, C5- 7 cycloalkyl, furyl or thienyl group, R3 is hydrogen atom or C1- 7 alkyl group, R4 is a hydrogen atom, a C1- 7 alkyl group, a C2- 7\t alkylthioalkyl group, a C2- 8 carbalkoxy group, a carbamoyl group, an alkylcarbamoyl, dialkylcarbamoyl or dialkylaminoalkylcarbamoyl group having 1-7 carbon atoms in the or each alkyl group, or a group -COOCat in which Cat is the cation of an alkali metal or semication of an alkaline earth metal and R5 is a C1- 7 alkyl group or, when R4 is a carbamoyl or -COOCat group, a cation Cat) are prepared by (a) -excluding the case in which R4 is -COOCat and/or R5 is Cat-reacting a ketimine of the formula <FORM:1117063/C2/2> with an ester of the formula H2NCHR4COOR5 or a salt thereof, (b)-in the case of alkali metal salts of the formula <FORM:1117063/C2/3> saponifying a corresponding diester with an alkali metal hydroxide or treating a benzodiazepine derivative of the formula <FORM:1117063/C2/4> (in which Alk is a C1- 7 alkyl group) with an alkali metal hydroxide in a C1- 7 alkanol, (c)-in the case of alkali metal salts of the formula <FORM:1117063/C2/5> treating a benzodiazepine derivative of the formula <FORM:1117063/C2/6> with an alkali metal hydroxide in a C1- 7 alkanol, or (d)-in the case of alkaline earth metal salts-treating a corresponding alkali metal salt with an appropriate alkaline earth metal salt.  In some cases the chelate and non-chelate forms may be separated by fractional crystallization.