baber/WOPTO huggingface dataset:
Patent GB-1348590-A (GB)
Title: Method of manufacturing a waveguide
IPC: H01P11/00
Filed: 1972-12-06
Abstract: 1348590 Making waveguides; bending and flattening PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 6 Dec 1972 [9 Dec 1971] 56232/72 Headings B3A and B3E [Also in Division H1] A method of making a waveguide 17, Fig. 6, having at least one portion 19 with a cylindrical wall and one portion 21 with flat walls comprises introducing a metal core 3, Fig. 4, into a straight cylindrical steel tube 1, providing the tube with two parallel flat walls 7 by flattening the assembly on two sides, and removing the core by etching, wherein the core is hollow and the cross-sectional area of the metal of the core being no greater than the internal cross-sectional area of the flattened portion of the waveguide. The core 3 has a central bore 5 of diameter (d), Fig. 3 (not shown), such that the flattened tube portion is filled by the core 3 with the exception of two remaining small ducts 9 or a channel (15), Fig. 5 (not shown), to allow etching liquid to be forced or drawn through the ducts and circulate in the channel and thus decrease the etching time. The tube and core may be bent prior to  the flattening step and may be made of chromium-nickel steel and a soft metal, e.g. aluminium, respectively.
Patent GB-1404957-A (GB)
Title: Apparatus incorporating at least one cutting device or the like particularly for use in mining
IPC: E21C27/06
Filed: 1972-12-06
Abstract: 1404957 Mineral-mining machines GEWERKSCHAFT EISENHUTTE WESTFALIA 6 Dec 1972 [7 Dec 1971] 56331/72 Heading E1F In a mining or tunnelling machine a cuttercarrying arm has trunnions 11 pivoted in bushes 15 in bores 14 in opposed side walls of a housing 10 and a drive is supplied to the cutter(s) by a motor 19 having firstly a housing 25 mounted through a ball race 20 on a ring 28 secured within one of the trunnions 15 and locked against rotation with respect to the housing by stop means and secondly an output shaft 23 coupled to a shaft mounted in roller races in the trunnions and carrying centrally of its length a sprocket wheel meshing with a chain driving a sprocket wheel on a shaft driving the cutter(s) at the end of the arm. With such an arrangement the shafts 22, 18 can have a common axis despite wear of the bushes 15. The stop means can be interengaging projections on the motor housing and the housing 10 or a projection on one housing engaging in a recess in the other housing. A ram controls pivoting of the arm with respect to the housing, which can be mounted either on a wheel or tracked - supported chassis or can slide or be rolled along a conveyer.
Patent GB-1320977-A (GB)
Title: Psk demodulator
IPC: H04L27/227
Filed: 1970-06-22
Abstract: 1320977 Digital transmission systems; phase shift demodulation NUCLEAR-CHICAGO CORP 22 June 1970 [23 June 1969] 56461/70 Divided out of 1303086 Heading H4P Phase shift modulation comprising sinusoidal positive-negative and negative-positive waves has a demodulator using strobe pulses at substantially 270 degree points of each bit so the polarity of a recovered waveform is sensed at this point in order to determine whether it is a 0 or 1. A sync. pulse is produced each time the output signal changes its value so that one pulse is produced at least at the 180 degrees point of each bit of the recovered waveform. Data having a start pulse followed by a sequence of recovered PSK waveforms is fed to a terminal 301 a decoder 308 producing a reset pulse each time a start pulse is received which resets a divide by 2 circuit 310 and a free running multivibrator 306 is brought into synchronization at the first zero crossing following a reset pulse. A delay and shaper circuit 312 delays each pulse from circuit 310 for a period equal to one quarter of a bit interval so a strobe pulse opens gate 314 to pass the signal from a polarity sensing amplifier through an inverter to output terminal 315, hence although the signal is sensed in the second half of each wave and is of opposite polarity to the first, this is corrected in the inverting part of gate 314.
Patent GB-1179707-A (GB)
Title: Improved Hygienic Applicator and Methods of Making the same
IPC: A61F13/26
Filed: 1966-12-21
Abstract: 1,179,707. Tampon applicators. KIMBERLY-CLARK CORP. 21 Dec., 1966 [22 Dec., 1965], No. 57268/66. Heading A5R. [Also in Division B5] In a tampon or suppository applicator in which an outer tampon or suppository receiving tube 22 is in telescopic arrangement with an inner ejecting tube 36, the front end of the outer tube is tapered and formed by separate segments 26 which abut one another along a major portion of their side edges and which separate radially under pressure applied during ejection of a tampon or suppository and the rear end of the outer tube has a finger grip 34 extending from its exterior surface. The segments may be formed in the outer tube or in a tubular member (120, 132) connected to the outer tube the segments may be triangular their apices either meeting at a point 40 or being flattened in a plane transverse of the outer tube (Figure 11). Alternatively the segments are so shaped that when closed they define a rounded nose (154 Figure 18). The tip of the front tapered end may have a dimple (220) for receiving an adhesive for lightly, securing the apices of the segments together. The segments may be secured together by an adhesive film applied e.g. by spraying. The inner tube 36 has an open front end 44 of reduced diameter through which a drawstring 32 of a tampon may pass. The segments may be cut in tubing (46 Figure 4) used for the outer tube by rolling a cutter (56) mounted on a roller (52) around the tubing and the cut segments then may be arranged in tapered form between male and female dies of appropriate shape (Figures 5, 7, 8, 9 and 10). Alternatively the outer tube with a tapered front end may be moulded from thermoplastic sheet material, the front end being subsequently divided into segments by cutting. The inner and outer tubes each may be vacuum moulded in two or more parts which are subsequently joined together. The outer tube may be locked to the inner tube by engagement between an inwardly projecting portion of the finger grip (164 Fig. 13) and spacer rings (166) on the inner tube. The inner and outer tubes may be made of paperboard or paper, paper coated with polyethylene or aluminium foil, polyethylene, foamed polystyrene or polypropylene.
Patent GB-1417489-A (GB)
Title: Derivatives of pyrazolopyridine-5-carboxylic acids and esters
IPC: C07D471/04
Filed: 1973-12-11
Abstract: 1417489 Pyrazolopyridine-5-carboxylic acid derivatives E R SQUIBB & SONS Inc 11 Dec 1973 [29 Dec 1972] 57291/73 Heading C2C Novel compounds of Formula I wherein R is hydrogen or lower alkyl; R 1  is hydrogen, lower alkyl, phenyl or phenyl-lower alkyl; R 2  is hydrogen or lower alkyl; R 3  and R 4  each is hydrogen, lower alkyl, phenyl, R 6 , R 7 . phenyl, R 6 , R 7 -phenyl-lower alkyl or di-lower alkylamino-lower alkyl, or R 3  and R 4  together with the nitrogen to which they are attached form one of the heterocyclics R 8 , R 9  pyrrolidino, R 8 , R 9 -piperidino, R 8 , R 9 -pyrazolyl, R 8 , R 9 - dihydropyridazinyl or R 8 , R 9 -piperazinyl ; R 5  is hydrogen, lower alkyl, phenyl, phenyl-lower alkyl or halogen; R 6  and R 7  each is hydrogen, lower alkyl, trifluoromethyl or carboxy, R 8  and R 9  each is hydrogen, lower alkyl or hydroxylower alkyl, and physiologically acceptable acid addition salts thereof where "lower" denotes radicals contamin up to 7 carbon atoms, are prepared by reacting an amine R 2 NHR 4  with a compound of Formula V or VI Intermediates of Formula VI above are prepared by etherification of the corresponding hydroxy compound which is obtained by reacting a compound of Formula II with an oxalacetic acid ester alkyl OOCCH(R 5 )-CO.COOalkyl, or where R 1  is H reacting the above oxalacetic acid ester with a compound of Formula IIa wherein R 10  is an aromatic or heterocyclic nucleus to give a compound of Formula Va which is then oxidized with for example, selenium dioxide, to replace R 10  by hydrogen. Pharmaceutical compositions in conventional forms for oral, rectal or parenteral administration having tranquilizing, ataractic and antiinflammatory activity comprise an above novel compound and a carrier or diluent.
Patent GB-1433496-A (GB)
Title: Stand for an electronic stop watch
IPC: G04G99/00
Filed: 1973-12-12
Abstract: 1433496 Electronic timepieces INTERSIL Inc 12 Dec 1973 [12 Sept 1973] 57627/73 Heading G3T [Also in Division H2] A stand 11 comprises an electrical connector 16 intended to mate with a corresponding connector on the back of an electronic stop-watch 13, Fig. 1, (not shown) to retain the watch on the stand, and at least one switch 21 whereby signals can be fed to the watch circuitry to set the watch when the latter is on the stand. The stop-watch can thus be used as a desk clock. As described there are two switches 21, 22 on opposite sides of the stand and wired to the connector 16 and a socket connector 19 which is intended to receive the output connector from a battery charger 51. The charger is thus connected across the internal battery 61 of the watch to drive the watch and re-charge the battery. The switches allow the application of pulses to the watch logic circuitry 62 to set the hours and minutes.
Patent GB-1201649-A (GB)
Title: Improvements in or relating to racket frames
Inventor: CARLTON WILLIAM CHARLES
IPC: A63B49/10
Filed: 1967-12-20
Abstract: 1,201,649. Carbon fibre reinforced plastics rackets. CARLTON SPORTS CO. Ltd. 13 Dec., 1968 [20 Dec., 1967], No. 57757/67. Heading A6D. A racket for games such as tennis and badminton has a frame for stringing, a shaft and a handle, in which the frame is made of carbon -fibre-reinforced plastics material. The frame may be in one moulding or in two or more complementary mouldings. The shaft and handle may be of wood or metal or plastics material, or of carbon-fibre-reinforced plastics material as the frame. The frame, shaft and handle may be made as an integral moulding or separately. When the frame is in two complementary sections it is preferred that the sections meet in a plane containing or parallel to the area to be strung. If each section forms half of the frame, and the shaft and handle are of carbon-fibre-reinforced plastics material, one half of the shaft and handle may be moulded integrally with each section of the frame. When the frame is in two sections, the inner side of one or both sections may be provided with a plurality of spaced protuberances 13 and 14, so that when the two sections are joined together apertures 15 are provided for string- ing. If the frame is formed as a single moulding, the apertures for stringing may be drilled. The plastics material used for the frame may be a thermosetting or thermoplastic resin. Preferred plastics are epoxy resins, nylons, polypropylene and polymethylpentene.
Patent GB-1179540-A (GB)
Title: A Lamp Support for a Sealed Enclosure
Inventor: BAUDOIN JEAN-CLAUDE
IPC: G21F7/04
Filed: 1968-12-06
Abstract: 1,179,540. Lamps. COMMISSARIAT A L'ENERGIE ATOMIQUE. 6 Dec., 1968 [20 Dec., 1967], No. 58057/68. Heading F4R. A lamp 18 for illuminating the interior of an enclosure containing radio-active substances is located in a recess 20 in a solid block 24 of lead or other shielding material which is rotatably mounted in a correspondingly shaped aperture 2 in the wall 1 of the enclosure so that the lamp can be moved between an operative position, in which it illuminates the interior of the enclosure, and a retracted position in which it is accessible from outside the enclosure. The block, which is preferably spherical but may be cylindrical with part spherical ends, is rotatable on shafts 26, 27 journalled in bearings 28, 29 on the outer surface of the wall 1, each shaft having two curved lugs 30 engaged in circumferential grooves 22 on the block so that the block can be rotated by means of the crank 12 but can also be pivoted about an axis perpendicular to the shafts by means of a retractable handle 32. A second lamp may be located in a recess diametrically opposite the first lamp, and a further block 36 of shielding material may be mounted on the outer surface of the wall. In a modification a single shaft extends right through the rotatable block.
Patent GB-1253857-A (GB)
Title: Improvements in and relating to guide elements for the weft inserters of looms
Inventor: INGLIN ANTON XAVER
IPC: D03D49/60
Filed: 1968-12-06
Abstract: 1,253,857. Shuttleless looms. SULZER BROS. Ltd. 6 Dec., 1968 [8 Dec., 1967], No. 58071/68. Heading DIE. The guide comb for a gripper shuttle 49 or other weft inserter has teeth which can flex laterally of the path of the weft inserter. As shown, the jaw 47 is thin rod at 11 and the jaw 48 is thinned at 12 or 12'; or slots may be cut through the jaws to reduce the crosssectional area. There may be a narrow neck between the tooth and its shank 46.
Patent GB-583917-A (GB)
Abstract: 583,917. Loom shuttles. LUPTON, J. June 2, 1944, No. 10610. [Class 142 (iii)] A threading device for a loom shuttle comprises a tapered or conical member E projecting upwardly from a circular base E<1> fitting within a well A in the -shuttle. The member E may be secured within the well by a pin passing through an annular groove E<7> in the base E'. The member E may be formed or provided with a projection E' which may be continued around a portion of the member E at the top in the form of a flange which with the wall of the well forms' a narrow curved threading passage. A second projection E<8> may extend upwardly from the base E<1>. The well may be inclined upwardly towards the point of the shuttle at an angle of about 20‹. The shuttle eye D may be arranged on a diameter of the well, and the well may be placed at one side of the centre line of the shuttle so that the weft can be kept central of the shuttle in its path in the threading slit C.
Patent GB-1302400-A (GB)
IPC: H01Q19/08
Filed: 1970-12-10
Abstract: 1302400 Aerials COMPAGNIE GENERALE D'ELECTRICITE 10 Dec 1970 [10 Dec 1969] 58807/70 Heading H4A An optical type assembly comprises an enclosure containing a dielectric liquid, through which radiation of frequency greater than 1 GHz is passed, and at least one solid dielectric sheet on the radiation exit side of the enclosure. At least two orifices are formed in the enclosure and means are provided for circulating the liquid through an external cooler. As described, the enclosure is constituted by a pyramidal horn, with upper and lower walls 2, 4, a solid dielectric plug 10 in a rectangular cross-section feed waveguide 6, and a generally spherically shaped dome 8, consisting of a hot-formed sheet of methyl polymethacrylate. The enclosure is filled with benzene and two tubes 14, 16 are provided by which it enters and leaves, as indicated by arrows 15, 17. This embodiment may be used as the feed element of a Cassegrain type aerial, and the dome 8 may be specially shaped to overcome aberrations (Fig. 2, not shown). In another embodiment an assembly in the form of a bi-convex lens comprises two domes and a circular collar, which define an enclosure for the dielectric liquid (Fig. 3, not shown).
Patent GB-1192780-A (GB)
Title: Nematocidal Compositions
IPC: A01N57/16
Filed: 1967-12-29
Abstract: 1,192,780. Nematocides containing organic phosphates. FMC CORP. 29 Dec., 1967 f30 Dec., '1966 (2)], No. 59015/67. Heading A5E. [Also in .Division C2]  A nematocidal composition comprises as active ingredient a compound of formula wherein R and R<SP>3</SP> are C 1  to C 6  hydrocarbon. or R is benzyl, R<SP>1</SP> and R<SP>2</SP> are C 1  to C 4  alkyl and X is O or S, with the proviso that when X is O, R<SP>1</SP> and R<SP>2</SP> are each ethyl. Typical o,o-diethyl o-(1,2-dihydro -2-keto-1 ,6-dihydrocarbyl-4-pyridyl) phosphorothionates and phosphates are specified.
Patent GB-1285086-A (GB)
Title: Improvements in supersonic air inlet control systems for a turbo-propulsion engine
IPC: F02C7/057
Filed: 1969-12-16
Abstract: 1285086 Gas turbine engine; air intake control GENERAL ELECTRIC CO 16 Dec 1969 [23 Dec 1968] 61210/69 Heading F1G The invention relates to a gas turbine propulsion engine supersonic air intake system having means for varying the air-flow at the engine inlet, also control means for actuating the air-flow varying means so as to maintain the shock wave in the intake in its optimum position, and means proportionately responsive to a rate of change of engine air-flow for causing the control means to actuate the air-flow varying means at a rate proportional to the rate of change in the air-flow. In Fig. 1 a gas turbine ducted fan engine is shown having an air intake 34 the area of which may be controlled by an adjustable centre body through a control 42. A pressure device 44 is provided in the region of the intake throat 36 to sense the position of the intake shock wave and the rate of change of the position thereof. A spill passage 40 controlled by door 39 is provided whereby air in excess of engine requirement may be spilled to atmosphere. Pressure sensors 74, 76 are provided in the fan duct 66 to sense the static pressure PS25 and the total pressure P25 respectively, the pressure signals being passed to duct head sensor 78 and the resulting signal which is a measure of fan duct Mach number M25 passing to differentiator 80 and multiplier 84. A signal responsive to temperature T22 at the inlet to fan 68 is passed to unit 82 and the resulting signal also passed to multiplier 84. The signal M25 from the multiplier is the Mach number derivative and is passed to the summing device 58. The temperature signal is also passed to the unit 92 and then to multiplier 90. A signal indicative of fan speed NF is passed to differentiator 88 and then also to multiplier 90, the signal from the multiplier is the fan speed derivative and is passed to the summing device 58. The shock wave position signal from the sensor 44 is passed to unit 63 together with a signal from the throat area control 42 the resulting signal passing to divider 61 and thence to differentiator 100 and summing device 58. The resulting signal from the summing device is fed to summing device 52 together with a signal from the differentiator 48 which receives a signal from the spill passage 40 closure door 39. The signal from device 52 is fed to the controller 54 which acts to adjust the actuator 56 of the spill passage closure door 39. The throat area control 42 maintains the inlet area as a function of altitude and flight Mach number.
Patent GB-1282580-A (GB)
Title: Butadiene polymerization catalyst
Inventor: COZEWITH CHARLES
IPC: C08F4/64
Filed: 1969-12-16
Abstract: 1282580 Polymerizing butadiene ESSO RESEARCH & ENG CO 16 Dec 1969 [3 Jan 1969] 61230/69 Heading C3P Polymerization catalyst systems comprising TiX 3 .nAlI 3 , an organoaluminium compound, and a Lewis base, wherein X is halogen and n is a number from 1-20, can be used to polymerized butadiene. The Lewis base may be tetrahydrothiophene, tetrahydrothiopyran, or tetrahydrofuran, and may be added to the polymerization system either simultaneously with or after the addition of the organoaluminium compound. Polybutadienes having randomly distributed cis and trans unsaturation in the range of 50-90% trans and having a viscosity average molecular weight in excess of 100,000 and having (a) in the uncross-linked state tensile strengths of 150-2000 p,s.i., an extensibility before break of up to 1310% and a permanent set after breaking of 25-300%, and (b) in the cross-linked state tensile strengths of 1200-2500 p.s.i. and an extensibility before break of up to 900% may be produced. In the examples: (a) butadiene is polymerized in benzene utilizing TiCl 3 .n.AlI 3 , wherein n is 3/5 or 10, Al(C 2 H 5 ) 3  and tetrahydrothiophene or tetrahydrothiopyran; and (b) butadiene is polymerized in benzene utilizing TiCl 3 .5AlI 3 , Al(iso-C 4 H 9 ) 3  and tetrahydrothiophene.
Patent GB-1367767-A (GB)
Title: Laser machining of oxide materials
IPC: C03B33/08
Filed: 1970-12-31
Abstract: 1367767 Cutting by lasers DEFENCE SECRETARY OF STATE FOR 7 March 1972 [31 Dec 1970] 61968/70 Heading B3V [Also in Divisions B4-B5 and C1] An apparatus for machining oxide material 1 by a carbon dioxide-nitrogen-helium gas laser 9 comprises a mounting 3, 7 for the material 1, an optical system 13, 15, 17 for concentrating the laser radiation on the material 1 and means for controlling the position 19 of the concentrated laser radiation on the material 1. The workpiece may comprise silica, zirconia, alumina, magnesium aluminate spinel, magnesia, alumina porcelain, soda glass and soda-aluminaborosilicate glass. A workpiece of platinum, zinc or a photographic emulsion on a metal plate may also be machined by the laser if the workpiece contains an oxide layer. In one embodiment, a beam from the laser 9 is deflected on to a workpiece 1 by mirrors 13, 15, 17 mounted on a saddle 11 which is coupled to a lead screw 21. The workpiece 1 may be rotated in a chuck 3 and tailstock 7 whilst the saddle 11 is moved by the screw 21 so that the imping- ing laser beam 19 traces a helical path to form, for example, a helical groove in a silica, sintered zirconia or sintered magnesia workpiece. A groove may also be produced in an alumina and spinel workpiece if the area impinged by the laser beam 19 is subsequently abraded. Alternatively, a silica tube may be cut by the laser beam 19 to produce a helical spring. The laser beam may have a diameter of 0À5 or 2 mm. In another embodiment, an apparatus for reproducing a pattern on a workpiece 1 further includes a transparency 41 mounted on a transparent drum 39, which is rotated from the chuck 3 via belt 37 and pulleys 33, 35 and which is internally illuminated by a lamp mounted on an arm 43 attached to the saddle 11. The lines of the transparency 41 are detected by a photo-cell 47 connected by an arm 45 to the saddle 11, whereupon a shutter 23 is opened by a motor 25 to allow the laser beam to impinge on the workpiece 1. When the shutter 23 is closed, the laser beam is deflected into an absorber 27. In another embodiment (Fig. 3, not shown), a flat workpiece (85) is machined on a table (63) which is movable on a bed (61) by a lead screw (69) or a rack and pinion (71, 73). The mirrors 13, 15, 17 are mounted on a mounting (75) which is movable by a lead screw (81) at right angles to the table movement.
Patent GB-1287288-A (GB)
Title: Refractory inorganic oxide fibers
Inventor: BRAND VINCENT THOMAS
IPC: C04B35/622
Filed: 1969-12-22
Abstract: 1287288 Oxide fibres UNIVERSAL OIL PRODUCTS CO 22 Dec 1969 [27 Dec 1968] 62277/69 Heading C1A Refractory inorganic oxide fibres are prepared by mixing a refractory inorganic oxide sol and a fibre forming organic synthetic polymer which is soluble in the sol, concentrating the resulting reaction mixture while maintaining liquid phase conditions, drawing the concentrated reaction mixture into fibres in an atmosphere having a relative humidity of not more than 80% and calcining the resulting fibres in a molecular oxygen-containing environment at a temperature of at least 300‹ C., thereby burning the organic matter from the fibres. Exemplified sols are Al 2 O 3  and Al 2 O 3 -Cr 2 O 3 ; others mentioned are ZrO 2 , SiO 2 , MgO, ThO 2 , and Al 2 O 3 -ZrO 2 . They may be prepared by hydrolysis of a metal salt, e.g. Zr acetate or Al chloride, sulphate, nitrate, or acetate, or by electrolysis, e.g. of AlCl 3 . Exemplified polymers are polyurethane, polyethylene oxide, polyvinyl pyrrolidone and polyvinyl alcohol; others are listed.
Patent GB-2001137-A (GB)
Title: Wave-energy conversion apparatus
IPC: F03B13/20
Filed: 1978-07-14
Abstract: Comprises a sea-going vessel having a saucer shaped hull, a gravitationally balanced ring beam (11) mounted within the vessel, and hydraulic transducers (9, 14) mounted between the ring beam and the structure of the vessel to respond to rocking movements of the vessel relative to the ring beam due to wave impact from any direction. <IMAGE>