baber/WOPTO huggingface dataset:
Patent GB-952716-A (GB)
Title: Olefin homopolymers
IPC: C08F32/00
Filed: 1962-10-22
Abstract: High molecular weight homopolymers of cyclobutene are made by polymerizing cyclobutene in the presence of a catalyst comprising a compound of a transition metal and an organometallic compound of Group 1(A), II, or III(A) of the Mendel<\>aeeff Periodic Table. The polymerization may be effected in bulk or in the presence of a hydrocarbon diluent. The polymers may be converted to cross-linked products by heat-treatment at a temperature above 200 DEG C. The crystalline structure of the polymers can be altered by employing different catalyst systems, e.g. CVl4+Al(m-C6H13)3, and vanadium triacetylacetonate and Al(C2H5)2Cl. Other catalyst components mentioned are TiCl3, VOCl3 Al(C2H5)3, Al(i-C4H9)3, Al(n-C6H13)3, Be (C2H5)2, and Li(n-C4H9). The polymer may be moulded or extruded into filaments.
Patent GB-1530811-A (GB)
Title: Optical recording
IPC: G11B7/131
Filed: 1975-09-30
Abstract: 1530811 Recording and playback of television signals PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 30 Sept 1975 [3 Oct 1974] 39940/75 Heading G5R In an optically-readable record of a television signal, the spatial frequency of areas 4, e.g. pits, along a track 2 represents a first carrier wave frequency-modulated with the luminance information while lateral undulation of the track 2 represents further carrier waves modulated with other information, the frequency of the first carrier wave being at least twice that of any of the further carrier waves. As described, the frequency of, the undulation represents chrominance information while its amplitude represents sound information, and a second undulation with a constant frequency an order of magnitude lower is superimposed on the first to facilitate track-following in playback apparatus of the type described in Specification 1,530,812.
Patent GB-1528364-A (GB)
Title: Winding hub for a record tape
IPC: G11B15/67
Filed: 1975-09-30
Abstract: 1528364 Web reels PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 30 Sept 1975 [3 Oct 1974] 39941/75 Heading B8M A hub 1 for winding a record carrier such as a tape 7 comprises a recess 10 having a constriction 9 and provided with a clamping member 11 for clamping the end of the tape 7 in position in the recess 10, and a further recess 13 having a constriction 12 and provided with a member 15, the portion 14 between the recesses 10, 13 being elastically movable whereby when the end of the tape 7 is clamped in position in the recess 10 by the clamping member 11 member 15 is clamped into the recess 13 thereby moving the portion 14 towards the recess 10 to effectively clamp the end of the tape 7 in the recess 10. Instead of inserting the members 11 and 15 through the constrictions they can be inserted axially of the hub in which case the constrictions are made narrower.  The clamping member may be a moulded-on tab or key which can be swung into a correspondingly formed recess.
Patent GB-1007155-A (GB)
Title: Controlled action rotary servo-motor control mechanism
IPC: B62D5/24
Filed: 1961-11-10
Abstract: 1,007,155. Steering vehicles. S. B. GOMEZ. Nov. 10, 1961 [Dec. 21, I960], No. 40367/61. Heading B7H. In a servo-assisted steering mechanism, Fig. 3, a shaft 1, to which the hand wheel is connected, is connected to a transmission shaft 2 by way of a pair of inter-engaging screwthreaded elements, 16, which may be of the re-circulating ball type, and the shaft 2 is connetted to steering gear which may comprise a waisted worm 45 and follower 48. Relative movement between the screw elements 16 is impeded by a spring 20 and unless the resistance to be overcome is sufficient to cause relative movement of the screw parts and compression of the spring, steering is direct. The mechanism includes a servo motor 5 of the vane type coupled to the steering worm 45 through a multi-plate friction clutch 6 actuated by fluid pressure. When the steering resistance to be overcome is great, relative movement occurs between the screw parts 16 causing movement of a member 22 which operates, through levers 23, the valves of a fluid pressure system, which may be hydraulic or pneumatic, causing the application of pressure fluid to the motor 5 in the appropriate direction-dependent upon the direction in which the lever 23 moves. Fluid pressure is simultaneously applied to an expandable sleeve 38 whereby, through a thrust member 60, against the pressure of a return spring 61, the clutch 6 is actuated and the steering worm 45 is driven by the fluid motor 5. In a modification. Fig. 6, wherein the steering wheel shaft is mounted in bearings 15 which permit axial movement, the steering shaft extension 21 operates the valve control levers and the servomotor 5 is connected to the steering worm through the friction clutch 6 and a planetary reduction gear 7, the servomotor in this case operating at a higher speed than the transmission shaft 2. An embodiment is described comprising two servomotors in series and also, embodiments are described having steering gear of the worm and nut type. In Fig. 8, the steering gear comprises a waisted worm 45 and a pair of rollers 56.
Patent GB-1396509-A (GB)
Title: Treatment of keratinous fibres
IPC: D06M15/643
Filed: 1971-08-28
Abstract: 1396509 Shrinkproofing wool DOW CORNING LTD 10 Aug 1972 [28 Aug 1971] 40471/ 71 Heading D1P Keratinous fibres are shrinkproofed by applying 0.5-10% wt polyorganosiloxanes of formula wherein n has an average value of 1.9 to 2.1 and R is an organic radical attached to silicon through a Si-C bond, 0.25 to 50% of R substituents being monovalent and having less than 30C atoms and containing in a position at least 3C atoms distant from the silicon atom, at least one -NH- radical and at least one -NHX radical wherein X is hydrogen C 1-30  alkyl or aryl. The remaining R substituents are monovalent hydrocarbon radicals, halogenated hydrocarbon radicals, carboxyalkyl or cyanoalkyl radicals of 1-30C atoms, at least 70% of these remaining R radicals having 1-18 (inclusive) carbon atoms. Specified amino radicals are -(CH 2 ) 3 NHCH 2 CH 2 - NH 2 , -CH 2 CH.CH 3 .HCH 2 NHCH 2 CH 2 NH 2 , -(CH 2 ) 4 NHCH 2 CH 2 NH 2 , -(CH 2 ) 3 NH(CH 2 ) 6 - NH,CH 3 , or R" 2 NCH 2 CH 2 (NHCH 2 CH 2 ) x NH 1  R'- wherein R" is hydrogen, alkyl or a aryl, x is 1 to 10, y is 1 or 2 and R' is divalent or trivalent hydrocarbon radical with at least 3C atoms. The other substituents may be substantially all methyl radicals. The polysiloxane may be applied as a solution or dispersion in benzene, hexane, toluene or perchloroethylene. The keratinous fibres may be chlorinated prior to treatment with the polyorganosiloxane. The treated fibres may be aged at 40-160‹C. The keratinous fibre may be sheep's wool, mohair, cashmere, alpaca or vicuna wool.
Patent GB-1532974-A (GB)
Title: Derailleur for a bicycle
IPC: B62M9/124
Filed: 1975-10-03
Abstract: 1532974 Chain-shift change-speed gear SHIMANO INDUSTRIAL CO Ltd 3 Oct 1975 [4 Oct 1974 (4)] 40686/75 Heading F2D In a chain shifter for a cycle change-speed gear, wherein a frame 5 carrying guide sprockets 51 pivots at 54 about a transverse axis on a transversely movable member 4, swinging on parallel links 6 on a support member 3, pivoted at 9 about a transverse axis on a bracket 2 fixed to the cycle frame, either the transverse pivot pins or the receptors therefor are formed by pressure integrally with the respective member which carries them. As shown the bracket 2 has pressed from it an integral receptor sleeve 23, which forms a spacer between the bracket 2 and support member 3 and receives a pivot pin 9 passed through apertures in the member 3 and receptor 23 and retained by a snap ring 13. The pivotal connection between the sprocket frame 5 and movable member 4 comprises a hollow pin 54 integrally pressed from the frame 5 and engaging a receptor sleeve 15 attached to the member 4, the pin being retained by a snap ring 17. Helical springs 12, 16 surround the pivots 23, 15 and produce counter-clockwise and clockwise torques respectively. Screwed stops 63, 64 limit pivotal movement of the parallel links 6 and a stop 55 on the sprocket frame 5 contacts the movable member 4 to limit relative movement therebetween. A guided tension cable 8 shifts the movable member 4 in opposition to a coil spring not shown) between one of the links 6 and the movable member 4. In Figs. 5 to 7, not shown, receptor sleeves are carried by the bracket 2 and frame 5 and receive closed-ended hollow pins integrally pressed from the members 3 and 4, whilst in Fig. 8, not shown, open-ended receptors pressed from the members 3, 4 receive solid pins (like 9) carried by the bracket 2 and sprocket frame 5.
Patent GB-1369053-A (GB)
Title: Froth flotation apparatus and process
IPC: B01F5/02
Filed: 1971-09-01
Abstract: 1369053 Froth flotation; aerating and circulating liquids L H LOGUE 1 Sept 1971 [24 Sept 1970] 40791/71 Headings B1C and B2H In a froth flotation apparatus comprising a cell 10, Fig. 1, through which pulp to be separated is circulated and having an overflow 11a, 11b for the froth containing the desired separated pulp. constituent, a venturi tube aerator 24 is mounted in a submerged upright position in the cell and gas under pressure and pulp are delivered to a lower intake portion 27a of the venturi tube where they are mixed together, the mixture ascends through an upper discharge portion 27b of the tube in which precipitation of dissolved gas in the mixture on to the desired pulp constituent occurs, and the aerated pulp is discharged from the upper edge 28 to the pulp or froth in the cell, the discharge portion 27b of the venturi tube being longer than the intake portion 27a and its angle of divergence being smaller than the angle of convergence of the latter portion. Aerating gas is admitted to the portion 27a from a header 14 via valves 15, 20, a belt-driven hollow rotary shaft 16 and a hollow hub member 21 carried by the shaft and provided with outlet openings 25. The hub member carries a bladed impeller 22 which draws the gas, and pulp entering via baffles 23, upwardly through turbulent-preventing vanes 26 into the interior of the venturi portion 27a whereby the gas is mixed with the liquid portion of the pulp. After passing the constriction 30, a pressure drop in the flow results in gas precipitation in fine bubbles which attach themselves to the desired pulp constituent. At the upper edge 28 of the venturi tube, a deflector 29 directs the aerated pulp to the pulp or froth in the cell. The desired constituent with attached air bubbles is carried in the froth across the overflow 11a, 11b. Unfloated desired constituents are directed in a downward circulation to the intake of the venturi tube for retreatment. In a first modification, Fig. 3 (not shown), there is no deflector and the aerated pulp is discharged directly into the pulp body in the cell. In a second modification, Fig. 4 (not shown), the aerating gas is fed to the bottom of the venturi tube through a nozzle and there are no vanes 26. In a third modification, Fig. 5, an intake tube 41 projecting into the upper portion of the cell is connected to a gas supply tube 43 at a constricted portion 42 and to a pump 40 which discharges pulp and gas dissolved therein via a nozzle 44 and an openended flaring baffle 45 to the base of the venturi tube. In a further modification, Fig. 6, gas is drawn via a rotary hollow shaft 16a and an intake 52 into an impeller 50 which also draws in recirculating pulp through an intake 53 and delivers the gas-pulp mixture to the bottom of the venturi tube at the entrance of which blades 56 are disposed.
Patent GB-1100887-A (GB)
Title: A planet carrier for epicyclic gears
IPC: F16H1/28
Filed: 1965-09-24
Abstract: 1,100,887. Toothed gearing. UNITED AIRCRAFT CORPORATION. 24 Sept., 1965 [8 Oct., 1964], No. 40831/65. Heading F2Q. A planet carrier comprises an annular member 21 having outwardly radially extending spokes 22 which support straps 24 carrying planet wheels 14. A portion of each spoke constitutes a U-shaped member oriented with its legs 40, 82 generally parallel to the axis of the planet carrier. The annular member 21 has a splined connection with an output shaft 26. Lubricating oil is directed through apertures 60 in the spokes 22 so that it impinges on the teeth of the planet gears and is directed towards the sun gear.
Patent GB-1035186-A (GB)
Title: Wheels
Inventor: ADAMS GEORGE EDWARD
IPC: B60B3/02
Filed: 1961-11-16
Abstract: 1,035,186. Vehicle wheel. DUNLOP RUBBER CO. Ltd. Nov. 8, 1962 [Nov. 16, 1961], No. 40984/61. Heading B7C. A wheel comprises a disc 11 integral with a rim 23, the rim having a fixed tyre-retaining flange 22 and a gutter 16 for receiving a detachable split flange or a lock ring 17 retaining a flange 18, the rim being formed of two parts joined by a circumferential weld 20.
Patent GB-1358911-A (GB)
Title: Tetrahydropyridylmethyl carboxylic acid esters
IPC: A61K31/44
Filed: 1971-09-02
Abstract: 1358911 Tetrahydropyridyl methyl carboxylic acid esters BOEHRINGER INGELHEIM GmbH 2 Sept 1971 [2 Sept 1970] 41042/71 Heading C2C Novel compounds of Formula I (wherein R 1  represents a hydrogen atom; an alkenyl or alkynyl group with 3 or 4 carbon atoms; or an alkyl group with 1 to 8 carbon atoms which may if desired be substituted by a chlorine atom or by a cyano, hydroxyl or phenyl group; and R represents the group A (wherein R 2  represents a hydroxyl group and R 3  represents an alkyl group with 1 to 4 carbon atoms, a cycloalkyl group with 5 or 6 carbon atoms or a phenyl group; or R 2  and R 3  together with the adjacent carbon atom form a 5- or 6- membered carbocyclic ring system) or the group B wherein R 4  represents any group which may be represented by R 3  as defined above and R 5  represents a cycloalkyl group with 5 or 6 carbon atoms or a phenyl group with the proviso that when R 4  and R 5  both represent phenyl groups they may be linked in the o-position directly or by an oxygen bridge, and salts and quaternary compounds thereof, are prepared by one of the following methods, (a) a compound of Formula II wherein X is OH or halogen is esterified using the acid RCOOH or a derivative thereof; or (b) a compound of Formula V is reacted with a compound of formula R 1 X where X is halogen; or (c) for compound wherein R 1  is halogen substituted, by halogenation with SOCl 2  of the corresponding compound wherein R 1  is hydroxy substituted; or (d) by reduction of a compound of Formula Ib and in all cases salt formation or quaternization may be carried out. Intermediates of Formula II above wherein X = OH are prepared by reduction of a compound of Formula VI Pharmaceutical compositions contain the above novel compound I as the active ingredient. The composition may be in a form for oral, rectal or parenteral administration and have anticholinergic activity.
Patent GB-1336567-A (GB)
Title: Pressure relief valve
IPC: H01M50/167
Filed: 1970-08-27
Abstract: 1336567 Bursting discs UNION CARBIDE CORP 27 Aug 1970 [27 Aug 1969] 41208/70 Heading F1D [Also in Divisions F2 and H1] A device for releasing gas from inside a fluid tight container, such as an alkaline galvanic cell, comprises a ball 30 of an elastomeric material force fitted into a smaller size vent orifice 32, the ball being deformed into an elongated shape to exert a high sealing force against the walls of the orifice and being expelled upon the build up of an abnormally high internal gas pressure. The ball may be formed from an ethylene-propylene  copolymer and be coated with a lubricant, such as silicone grease, soap or wax. After the ball has been expelled from the vent, it is held in the position shown in broken lines by the positive terminal 25 to function as a valve relieving internal pressure at a lower value than that required to expel the ball. In a second embodiment, the vent orifice is provided within a rivet 22 and terminates in an enlarged recess 36, Fig.3 (not shown) into which the ball is expelled. The recess is closed by a disc-shaped spring (38) providing electrical contact with the base of the cell. In Fig. 4, the orifice 62 is formed in a metallic cover 52 welded to a conductor 54 leading to one of the electrodes of the cell, the cover being mounted between a gasket 51 and a seal 58 of soft resilient plastic material. A conical surface may be provided at the top of the orifice to form a seat for the ball after it has been expelled. In a further embodiment, increased pressure is required to expel the ball through an aperture in a washer (75), Fig.6 (not shown) and into a metallic cup (77) having a punched out spring member (79) to make electrical contact with the base of the cell. In the cell illustrated, two metallic containers 10, 11 are separated by a liner 12 of paper or fibrous material while the cathode 15 and anode 16 are separated by two layers 18 of a liquid and gas permeable material. The electrolyte 16 may be an aqueous solution of potassium or sodium hydroxide.
Patent GB-1164818-A (GB)
Title: Improvements in or relating to Mechanical Locking Devices for a Film Magazine in a Magazine Support
IPC: G03B21/32
Filed: 1966-09-16
Abstract: 1,164,818. Latches. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 20 Sept.; 1965, No. 41422/66. Heading E2A. A mechanical locking device for a film magazine 6 in 'a magazine support 1, comprises a catch member 9 displaceable at right angles to the travelling direction of the magazine 6 and having a bevelled end face 10 on which an outwardly directed pressure is exerted by the magazine 6 when it moves in one direction, which pressure is opposite to the force of a spring 15 counteracting the displacement of the catch member, the displaceable catch member 9 being rotatably secured at one end 11 to an arm 12 the other end of which is pivotally connected by a shaft 13 to the magazine support 1 and is provided with a recess 19 cooperating with a pawl 18 which prevents pivotal movement of the catch member 9 when the magazine 6 moves rectilinearly in one direction, but which, upon removal from the recess, allows the latch member 9 to rotate and the magazine to be removed from the magazine support 1. As shown, the pawl 18 is a shaft carried by a member 16 pivoted about a shaft 17 on the support 1 and the shafts 13 and 18 are tensioned by a spring 20. The magazine 6 is carried on a pair of rails in the support 1, there being a locking device associated with each rail. A lever 22 is carried by a shaft 23 on each rail and when operated, rotates the member 16 which lifts the pawl 18 from the recess 19 to free the catch member 9 and allows the magazine to be withdrawn. A push button 25 is connected through plates 26, 27 to a shaft 28 which couples the devices associated with both rails 4, 5, and when depressed, operates the lever 22 through a stop 29 thereon against the. restoring action of springs 30, 31.
Patent GB-1485707-A (GB)
Title: Preparation of high temperature gas-cooled reactor fuel element
Inventor: BRADLEY RONNIE ALBERT
IPC: G21C3/64
Filed: 1975-10-13
Abstract: 1485707 Fuel elements UNITED STATES ENERGY RESEARCH & DEVELOPMENT ADMINISTRATION 13 Oot 1975 [26 Nov 1974] 41770/75 Heading G6C A high temperature gas-cooled reactor (HTGR) fuel element is made by loading green compacts, each consisting of a dispersion of nuclear fuel oxide or carbide microspheres within a pitch matrix, into close-fitting channels of a graphite fuel element block which is then subjected within an autoclave to a pressure of 5000 to 15,000 p.s.i. while increasing the temperature to 700 to 1000 C. at a rate of about 100 C./hour. The temperature and pressure are maintained for about 2 hours to allow carbonization of each pitch matrix to reach completion, after which the block is cooled under pressure. Finally, the block is removed from the autoclave and heated in a furnace in an argon atmosphere to 1800 C.
Patent GB-1211161-A (GB)
Title: Method and apparatus for combined measurement of quality and wastage in threshing and separating machines, such as combine-harvesters
Inventor: FEIFFER PETER
IPC: A01D41/127
Filed: 1968-09-04
Abstract: 1,211,161. Harvesters. WISSENSCHAFTLICHE-TECHNISCHES ZENTRUM FUR LANDTECHNIK SCHLIEBEN. 4 Sept., 1968, No. 42106/68. Heading A1F. The quality and wastage of grain in a harvester is measured by acoustic-electrical devices 3 positioned beneath the cutting mechanism, in a chaff discharge passage 4 and beneath an adjustable screen 1 at the discharge to the grain tank. The signals pass through a relay 5 which is controlled by switches 6 whereby the signals are displayed on the indicator 7 either separately or in combination.
Patent GB-1287403-A (GB)
Title: Improvement in or relating to a steering column for a vehicle
Inventor: WEBSTER HENRY GEORGE
IPC: B62D1/18
Filed: 1968-09-07
Abstract: 1287403 Adjustable steering columns STANDARD-TRIUMPH MOTOR CO Ltd 8 Sept 1969 [7 Sept 1968] 42678/68 Heading B7H A vehicle has a steering column (Fig. 1) including an upper portion (Fig. 3) adjustable in inclination about a lower portion and releasably lockable thereto, adjustment being effected by moving the upper portion about a pivot axis passing centrally through a universal coupling between upper and lower steering shafts and wherein adjustable mounting means are provided for supporting the lower portion at a selected inclination and position relative to the end of the lower steering shaft remote from the coupling. The upper portion comprises a housing 17 and upper steering shaft 14 connected by Hookes joint 22 to a shaft 24 forming an upper portion of the lower steering shaft. Pins 44, whose axes are aligned and pass through the centre of joint 22, form the pivot axis of the upper portion of the column relative to its lower portion. A knob 46, acting on opposed sides of housing 17 and plates 43 secured to housing 41 of the column lower portion, through a spacer 52 and nut 48, is used to lock the upper portion to the lower. The lower column portion comprises shaft portions 24 and 27 secured together by splines preventing their relative rotation but permitting axial extension of the length of the lower column portion. Shaft portion 27 is secured to the vehicle body part 31 through the intermediary of a nylon grommet 32 permitting limited movement of the shaft about axes normal to that of the grommet, but precluding axial movement of the shaft. At a point remote from the grommet a knob 57 is provided for clamping the lower column portion to the vehicle body. The vehicle body is formed with slots 61 permitting the column lower portion to incline relative to the body about a centre at the grommet 32. Axial slots 62 in housing 41 permit extension of the length of lower column portion. Friction material may be provided at the several clamping points of the column.
Patent GB-1391570-A (GB)
Title: Weed control compositions
IPC: A01N37/18
Filed: 1973-09-13
Abstract: 1391570 Weed control compositions GULF RESEARCH & DEVELOPMENT CO 13 Sept 1973 [13 Sept 1972] 43129/73 Heading A5E A synergistic pre-emergent weed control composition consists essentially of one part by weight 2-cyclopropanecarboxamido-5-(2- chloro-1, 1-dimethylethyl)-1, 3, 4-thiadiazole and two parts by weight N-benzyl-N-isopropyl pivalamide.
Patent GB-1325804-A (GB)
Title: Process for producing uranium dioxiderich compositions from uranium hexafluoride
IPC: C01B13/20
Filed: 1971-09-16
Abstract: 1325804 Uranium dioxide powder GENERAL ELECTRIC CO 16 Sept 1971 [2 Oct 1970] 43172/71 Heading C1A UF 6  is converted by a flame reaction in a reducing atmosphere into an UO 2  rich oxide powder by introducing into a reaction zone 18 separate streams of a UF 6 /free O 2 -containing gas mixture and a reducing gas, the two streams being temporarily shielded from each other by a third gas stream, introduced via concentric pipe 14, so that the conversion flame is displaced and maintained away from the inlet pipe 14 in the reaction zone. The O 2 -containing gas may be air, O 2  or O 2 -enriched air, the reducing gas may be H 2  and/or dissociated NH 3 , and the shielding gas may be N 2  and/or an inert gas. The reaction zone may be at a temperature of at least 100 C. and a pressure of 1-25 ins Hg. The UF 6  gas mixture may be introduced via a plurality of tubes (27) in Fig. 3 (not shown) surrounded by the shielding gas.