baber/WOPTO huggingface dataset:
Patent GB-1497797-A (GB)
Title: Stabilizing system for an inverter-driven induction motor
IPC: H02P23/08
Filed: 1974-12-13
Abstract: 1497797 Automatic control of speed EATON CORP 13 Dec 1974 [14 Dec 1973] 38687/76 Divided out of 1497796 Heading G3R The subject matter of this Specification is identical with the disclosure of Parent Specification but the claims relate to a method of reducing oscillations in an inverter fed induction motor.
Patent GB-826869-A (GB)
Title: Improvements in or relating to telephone instruments
Inventor: PURTON RAYMOND FREDERICK
IPC: H04M1/60
Filed: 1956-12-19
Abstract: 826,869. Substation equipment. BRITISH TELECOMMUNICATIONS RESEARCH Ltd. Dec. 17, 1957 [Dec. 19, 1956], No. 38709/56. Class 40 (4). A conventional set is converted to amplifier working by the incorporation therein of a mounting plate (a modified base-plate, as shown in Fig. 1) carrying the additional equipment, including a transistor amplifier, and provided also with a key 14 for switching the amplifier into and out of service. The circuit may be printed. As shown in Fig. 2, two transistor amplifiers VT1 and VT2 are provided for the receiver and transmitter respectively and are supplied with power over the telephone line by way of a rectifier bridge, with a shunt thermistor TH1 to maintain the operating potential substantially constant irrespective of the length of the line. For use by a deaf person, the receive amplifier is arranged to have a gain of 12 db. and the transmit amplifier a gain of 0 db. The connection of one strap between terminals A1 and A2 and another between terminals A3 and A4 causes both amplifiers to have a gain of 6 db., for use by a person of normal hearing on a poor line.
Patent GB-1381998-A (GB)
Title: Dishwasher detergent composition
IPC: C11D3/02
Filed: 1973-08-17
Abstract: 1381998 Detergent composition PROCTER & GAMBLE CO 17 Aug 1973 [17 Aug 1972] 38991/73 Heading C5D  Substantially sequestrant-free automatic dishwasher detergent compositions comprise (a) from 50% to 80% by weight of an alkali metal sulphate, acetate or propionate, (b) from 15% to 35% by weight of an alkali metal silicate having a SiO 2  : alkali metal oxide ratio of from 3À6 : 1 to 1 : 2, (c) a chlorine-yielding bleach sufficient in amount to give the compositions an available chlorine content of 0À5% to 10% by weight, and (d) from 2À5% to 10% by weight of a lowfoaming, water-soluble synthetic organic non- ionic detergent. Component (a) is preferably sodium sulphate, acetate or propionate, component (b) is preferably sodium silicate and component (c) may be inorganic or an organic compound such as potassium dichlorocyanurate. The non-ionic detergent component (d) may be a condensation product of a C 8 -C 22  fatty alcohol with from 3 to 20 moles of ethylene oxide.
Patent GB-1151427-A (GB)
Title: Method of and Apparatus for Rolling Flat Strip
Inventor: STONE MORRIS DENOR
IPC: B21B37/48
Filed: 1965-09-13
Abstract: 1,151,427. Rolling. UNITED ENG. & FOUNDRY CO. 13 Sept., 1966 [13 Sept., 1965], No. 39052/65. Heading B3M. The degree of flatness of a metal strip is controlled by varying the rolling pressure transversely of the strip, as the strip is reduced between a pair of rolls, in response to measurements of non-flatness of the strip in a zone following the rolls. The strip is maintained in a state relatively free of tension in the zone to reveal any non-flatness. The variation in rolling pressure is effected by controlling the crown of the work rolls or backing rolls, and/or the crown of deflector rolls positioned adjacent the mill rolls. Strip S passes from a coil 11, around tensioning bridle rolls 14 and 15, over a deflector roll 19, through two mill stands 21 and 28, over a second deflector roll 36, around further sets 37 and 41 of bridle rolls, and to a coiler 44. The tension of the strip in the zone between the sets 37 and 41 is arranged to be negligible, and any non-flatness of the strip in this zone is detected by an optical source 53 and receiver 54. Signals from the receiver 54 pass to a controller 52 which varies the crown of the one or both of the deflector rolls 19 and 36, and/or the crown of the backing rolls of the mills 21 and 28. The crown of the rolls in each case is varied using hydraulic piston and cylinder assemblies which act on the extended necks of the appropriate rolls. The mill may be simplified by having only a single stand with crown control, or by having a conventional stand with an associated deflector roll. The process is applicable to hot or cold rolling.
Patent GB-1415154-A (GB)
Title: Device for measuring the rheological properties of fluids
IPC: G01N11/10
Filed: 1971-08-20
Abstract: 1415154 Measuring rheological properties NATIONAL RESEARCH DEVELOPMENT CORP 7 Nov 1972 [20 Aug 1971] 39206/71 Heading G1S [Also in Division F2]  Apparatus for measuring rheological properties comprises a shaft 4 driven at a variable speed by motor 1, a container 10 for a liquid, a first coupling mechanism between shaft 4 and container 10 for continuously rotating container 10, and a second coupling mechanism between shaft 4 and container 10 for imparting an oscillatory motion to container 10. Shaft 4 is driven via a cone 2 and wheel 3, the drive ratio being adjusted by moving the motor 1 and cone 2 along a slide 8 by means of a screw mechanism 9. To rotate the container 10 continuously the first drive mechanism comprises a pair of gears 5 and 6. To oscillate container 10, the second drive mechanism comprises a helical gear 19 on shaft 14 driving a gear 18, and an eccentric pin 17 on gear 18 slidable in a slot 20 in one end of a rod 21, the other end of rod 21 being coupled to shaft 7. A cylinder 11 mounted on a shaft 12 is constrained against rotation by a spring 13'. When the container is rotated continuously, the angular deflection of cylinder 10 against spring 13' is measured by a pointer 14 and scale 15. During oscillatory motion, the movements of shaft 7 are monitored by detectors 22, and the movements of cylinder 11 by detectors 22', the detectors being magnetic or capacitance detectors coupled to an indicating device such as a cathode ray tube. The container 10 and cylinder 11 are removable and may be replaced with units of different sizes, and spring 13' may be replaced with springs of different rates.
Patent GB-936021-A (GB)
Title: Improvements in or relating to tobacco-manipulating apparatus
Inventor: MOLINS DESMOND WALTER
IPC: A24C5/18
Filed: 1958-12-05
Abstract: 936,021. Cigarette - making machines. MOLINS MACHINE CO. Ltd. Dec. 4, 1959 [Dec. 5, 1958; June 5, 1959], Nos. 39262/58 and 19307/59. Class 130. A continuous tobacco filler built up on the underside of an air-pervious metal conveyer band 1, Figs. 6 and 7, by air flowing up a passage 3, and which the band 1 retains by suction whilst passing from the passage to filler trimming and wrapping means (Fig. 1, not shown), is contacted by sealing means 20 movable to accommodate filler depth variations and acting to prevent air entry to the passage over its end wall 4. Louvred suction ducts 6 are provided in the passage side walls. As shown, the means 20 is a resilient polyvinylchloride tyre mounted by clamp rings 26 on a "Tufnol" (Registered Trade Mark) wheel 24 driven by gears 22, 23 so that there is no slip between the tyre and filler, the tyre interior being in restricted communication with the atmosphere via ducts 28. A rotary finger 31 picks off tobacco entrained by the tyre 20. Modifications.-The tyre 20 may be replaced by spring steel paddle blades projecting rearwardly from the wheel and having rounded ends to fit the duct 11. Non-rotary sealing means may be used, in the form of a flap 112, Fig. 3, sealingly held up by the air pressure against the action of a spring 117, ducts 116 allowing the entry of air directed to deflect any air entering past the flap 112. In Fig. 4 (not shown), the flap is effectively rectangular and acts in a parallel-sided duct, being held up partly by the air pressure and partly by spring loading. In Fig. 2 (not shown), an unsprung flap with an upper edge shaped to fit the filler cross-section is used. Specifications 895,733, 914,821 and 916,141 are referred to.
Patent GB-1115326-A (GB)
Title: High frequency electrical heating apparatus
IPC: B29C48/00
Filed: 1965-09-16
Abstract: 1,115,326. Dielectric heating. CABOT CORPORATION. 16 Sept., 1965 [24 Sept., 1964]. No. 39508/65. Heading H5H. Dielectric heating apparatus operating at radio frequencies for curing preformed plastics material 18, comprises an outer conductive shield 22 enclosing a high potential electrode 20 coaxially aligned with and between two earthed electrodes 24, 26, the outside diameter of electrode 20 is less than that of the other electrodes, the internal diameters being the same. Electrode 20 is supported by an insulating block 16 mounted in the shield through which a rigid lead 14 passes connecting the electrode to a radio frequency generator. The plastics material in the form of a tube 18 is guided through the electrodes by alignment rings 28, 28<SP>1</SP> of insulating material and by arms 17 extending from block 16. Vapour emitted during curing is exhausted through an opening 19 in the shield, alternatively nitrogen may be passed through the shield. The electrodes may be of A1, Cu, Be, Zn, Ag, the shield of such a metal or of vitreous china and the insulating material of mica, glass, vitreous china or plastics material.
Patent GB-875195-A (GB)
Title: Process for the production of allene and/or propyne
Inventor: PEER HENDRICUS GERARDUS
IPC: C07C4/10
Filed: 1958-12-09
Abstract: Allene or a mixture of allene and propyne are obtained by the thermal cracking of a mixture containing isobutene and an inert gas at above 700 DEG C. and a contact time below 2 seconds.  The inert gas may be nitrogen, methane or a rare gas and the partial pressure of isobutene may be 0.05-0.5 atmosphere at room temperature.  The cracking may be effected in pyrolysis tubes or coils which may contain pumice filling bodies or in brick checkerwork or stoves and the product gas is rapidly quenched with cold water or a regenerative cooling mass. Diazomethane may be present as a catalyst.
Patent GB-1130928-A (GB)
Title: Device for lifting objects
Inventor: RAVEN ANTHONY DAVID
IPC: G21C19/115
Filed: 1965-09-17
Abstract: 1,130,928. Lifting nuclear reactor control rods. ENGLISH ELECTRIC CO. Ltd. 15 Sept., 1966 [17 Sept., 1965], No. 39782/65. Heading B8H. To lift a nuclear reactor control-rod 10 a lifting device 14 is lowered over it and an electromagnet 27 is lowered on to a plate 30. This pushes the latter down into engagement with a top cap 16 where a limit switch arrests downward movement of the magnet. The plate 30 is attached to a plunger 21, which, as it descends against a spring 26, pushes balls 13, which are housed in the control rod 10, outwards to engage a groove 18. The control rod is now supported by the device 14 which is supported by the magnet. To release the device from the control rod the magnet is de-energized and raised through a distance X, whereupon the spring 26 pushes the plunger 21 upwards so releasing the balls 13 from the groove 18. In this position the magnet is able to lift the device 14 but is not strong enough to attract the top cap 16 against the spring 26. The balls 13 therefore remain disengaged and the device may be lifted off the control rod 10. Mechanical means may replace the electromagnet. In a second embodiment a tubular plunger may force the balls inwards into a groove on the outside of a member which fits into a recess 11 in the control rod.
Patent GB-1198759-A (GB)
Title: Improvements in and relating to Tumbling Toys
Inventor: VIBY JETTE
IPC: A63H15/08
Filed: 1968-08-21
Abstract: 1,198,759. Tumbling toy. J. VIBY. 21 Aug., 1968 [25 Aug., 1967; 21 Sept., 1967], No. 39932/68. Heading A6S. A tumbling toy comprises an elongated shell having rounded ends 4, a ball 3 which can move along the axis of the shell, and a plurality of internal ribs 6 formed integrally with the shell, the inner edges 8 of which ribs extend axially and are tangential to a cylinder, the diameter of which slightly exceeds that of the ball. The edges 8 act as a guide for the motion of the ball, and the ribs strengthen the shell, which may therefore be reduced in weight. The shell comprises two substantially identical cup-shaped components 1 and 2 joined together, the ribs 6 of each component having a portion 7 which extends into the other component. The toy may tumble due to the motion of the ball in the shell, and may also roll about its longitudinal axis.
Patent GB-1167969-A (GB)
Title: A Three-Phase Asynchronous Motor.
IPC: H02K17/16
Filed: 1967-09-05
Abstract: 1,167,969. Rotors for asynchronous motors. SIEMENS A.G. 5 Sept., 1967 [6 Sept., 1966], No. 40489/67. Heading H2A. In a 3 pH asynchronous motor hunting when a single layer stater winding is used is suppressed by constructing its short-circuited rotor as two slotted assembly halves 1, 2 having between them a short-circuiting ring 5 and in each half their slots mutually offset and so oppositely inclined to directions parallel with the rotor axis that the length of a slot traverses a distance ¢# N2 equal to half a slot pitch at the rotor circular periphery.
Patent GB-902803-A (GB)
Title: Secondary phosphine sulphides and method of preparation
IPC: C07F9/46
Filed: 1960-11-29
Abstract: The invention comprises compounds of the formula <FORM:0902803/IV (b)/1> wherein Ra and Rb are substituted or unsubstituted alkyl radicals in which any linear carbon chain contains 1-18 carbon atoms; or substituted or unsubstituted aryl or saturated alicyclic radicals; Ra and Rb being attached to the phosphorus by way of a carbon atom; and R1-R6 are alkyl radicals of 1-10 carbon atoms; and their preparation by reacting sulphur with the corresponding secondary phosphine in an inert organic solvent and inert atmosphere at 0-100 DEG C. Substituents which may be present in Ra and Rb are alkoxy, halogen, aryloxy, amino, nitro, ureido, sulpho, hydroxyl, carbamyl, carbalkoxy, carboxy and aryl, and many suitable phosphines are listed.  The compounds are useful as nematocides and fungicides. Specification 902,801 is referred to.
Patent GB-1163808-A (GB)
Title: Manufacture of Sintered Metal Articles
Inventor: PECKHAM DEREK ALAN
IPC: B22F7/06
Filed: 1967-09-07
Abstract: 1,163,808. Moulding metal powder compacts. HENRY WIGGIN & CO. Ltd. 29 Aug., 1968 [7 Sept., 1967], No. 41007/67. Heading B5A. [Also in Division C7] In the moulding by isostatic compression of a metal powder article which is cored with a powder of different composition, a close-fitting polyethylene bag 4 is suspended within a mild steel container 1, a copper-nickel tube 7 which is spaced by fins 8 is then lowered into the bag 4 on to a bottom layer of nickel powder, and raised therefrom as iron powder 11 is deposited therewithin and nickel powder 6 therearound; the level of the latter being maintained higher than that of the former, providing a top covering layer over the core when tube 7 is withdrawn. The container 1 is vibrated during the filling. The bottom and upper covering layers may be omitted. The bag 4 is closed and transferred within the container 1, which is provided with holes 2 in the base thereof, to a pressure vessel where a compact is formed at 30,000 p.s.i. The bag 4 may remain or be removed prior to sintering by heating to 1100‹ C. at a rate of temperature increase less than 100‹ C. per hour between 400‹ and 900‹ C., and less than 150‹ C. per hour thereafter. The sintered compact is machined and extruded or, alternatively, may be hotrolled and drawn in stages, with intermediate annealing, to 5 mm. nickel coated wire. Tubular compacts may be made by employing a solid removable core within the tube 7 when this is also provided with internal core engaging fins. A plurality of concentric filling tubes 7 may be employed with powders of different compositions fed to the spaces therebetween. The bag 4 and tube 7 may be cylindrical, square or rectangular.
Patent GB-1146639-A (GB)
Title: Pneumatic conveyor
IPC: E21F15/08
Filed: 1966-09-14
Abstract: 1,146,639. Pneumatic conveyers. H. HÍL TER. 14 Sept., 1966 [14 Sept., 1965], No. 41019/66. Heading B8A. A pneumatic conveyer for conveying gob or debris in a mine working comprises a short conveyer tube, the length of which is less than a hundred times its diameter, and a pneumatic ejector supplying air thereto at a speed exceeding 100 m/sec. whereby the material being conveyed is rapidly entrained and lifted away from the wall of the tube. The resulting reduction in the wear on the tube permits the use of standard quality steel with a wall thickness of less than 1/30<SP>th</SP> of the tube diameter.
Patent GB-911875-A (GB)
Title: Cam shaft construction and arrangements thereof
IPC: F01L1/047
Filed: 1960-11-29
Abstract: 911,875. Shafts. INGERSOLL-RAND CO. Nov. 29, 1960 [Dec. 1, 1959], No. 41054/60. Class 80 (2). [Also in Group XXVII] A cam assembly comprises a shaft 28, Fig. 2, including shaft sections 48, 50, and a cam section 56, connected in end-to-end relation, a frame 10, Fig. 1, supporting a member 74 stationary relative to the shaft, a support 78, connected to the member 74, having a rotational bearing for the cam section and removable with the cam section as a unit by disconnecting the cam section and the support. One or more cam sections may be included and are secured to the shaft sections by bolts 59. The contacting surfaces of cover-plate 78, housing 74 and flange 94 are machined to insure alignment of the cam and shaft sections.
Patent GB-1345745-A (GB)
Title: Water control fittings for plumbing fixtures
IPC: F16K11/02
Filed: 1971-09-06
Abstract: 1345745 Supply fittings for basins &c AMERICAN STANDARD Inc 6 Sept 1971 [12 March 1971] 41402/71 Heading A4N [Also in Division F2] An integrated water supply fitting IF for a wash basin BS, comprises a wall-mounted housing MB which is spaced above and separated from the basin, which has a single handle HN for controlling the water mixing valve within the housing, and which is provided with either a fixed or an adjustable nozzle NZ. The hot and cold water supplies to the mixing valve enter the housing MB through the rear thereof without passing through the basin, the latter being provided with only a drain connection DR. The handle HN is movable in two mutually orthogonal planes for controlling the volume and temperature of the mixed water. The arrangement is said to obviate the necessity for forming the basin with pipe-receiving holes.
Patent GB-1121770-A (GB)
Title: New leather substitute
Inventor: BOLLIAND ROBERT
IPC: C08J9/24
Filed: 1966-09-16
Abstract: A leather substitute comprises (a) a microporous block polyurethane film 0.1-1 mm. thick, adherent on one face, directly or indirectly, to (b) a shrunk, knitted textile layer made from a yarn containing both shrinkable fibres and fibres of shrinkage at least 5% less than that of the shrinkable fibres, impregnated with an elastomer of low modulus of elasticity.  The shrinkable fibres make up 20-80% by weight of the knitted layer and have a shrinkage greater than 20%. The less shrinkable fibres have a shrinkage less than 10%.  The shrinkable fibres may be of polyvinyl chloride, polyethylene terephthalate or isotactic polypropylene, and the less shrinkable fibres may be of a polyamide, polyacrylonitrile, or polyvinyl alcohol.  The elastomer with which the knitted layer is impregnated is preferably the same block polyurethane as that of which the film is made, and the layer is impregnated with 20-60% of its weight of elastomer.  In examples: (1) the knitted layer is raised and cropped and immersed in a solution of the block polyurethane which is precipitated out and the layer dried; the raised faces are then sprayed with a solution of polyurethane elastomer and the film placed on the sprayed face; the film is prepared by coating by a doctor a cotton fabric with a layer of powdered polyurethane, passing through an oven and between two heated rollers, the polyurethane layer being subsequently stripped from the fabric: (2) Example 1 is followed except that the film is formed of a woven textile layer of polyamide-viscose fibre yarn and the combination of film and woven textile layer is laminated to the shrunk knitted layer: (3) the knitted layer is raised and cropped and a fabric of polyamide and rayon fibre is stuck to the cropped face: the combination is impregnated with a solution of polyurethane and excess liquid removed between rollers: the impregnated combination is curtain coated with a stronger solution of polyurethane, the polyurethane precipitated and the combination dried.
Patent GB-1397369-A (GB)
Title: Scale illumination for measuring instruments
IPC: G01D7/00
Filed: 1973-09-04
Abstract: 1397369 Measuring instruments, theodolites WILD HEERBRUGG AG 4 Sept 1973 [5 Sept 1972] 41623/73 Headings G1F and G1J A measuring instrument such as a theodolite is provided with a scale 3 and a semi-conductor diode 7 for illuminating the scale. As shown, the instrument may be provided with a telescope 5 rotatably mounted about a horizontal axis on a support housing 4 which is rotatable about a vertical axis relative to a'tripod 1. Scales 3, 6 indicate the position of the telescope about the vertical and horizontal axes respectively, the latter scale being illuminated by a semi-conductor diode 8. An optical system comprising lenses 11, 12, 14, 15 and a prism 9 enables an observer to view simultaneously, by way of a microscope 10, both images of the scales 3, 6 on a plate 9. The semi-conductor diodes 7, 8 which may emit different monochromatic beams may be connected by way of a time-switch 17 to a battery 21 sealed in a chamber 20 within the support housing 4. The time-switch which may comprise an R-C circuit may be adjusted so that when a button 18 is pressed, the diodes 7, 8 are energized for a predetermined period to allow the associated scales 3, 6 to be read.
Patent GB-893436-A (GB)
Title: Polystyrene film elements and coating compositions therefor
IPC: G03C1/91
Filed: 1958-12-29
Abstract: A coating composition consists of 0,40-1,75% by weight of gelatin, 0,032-0,140% by weight of cellulose nitrate, 0,8-3,5% by weight of water, 10-30% by weight of acetone, 10-30% by weight of isopropyl alcohol, and 5-20% by weight of either mesityl oxide, acetonyl acetone, or butyl carbitol acetate, or a mixture of from 70-80% by weight of a -methylbenzyl alcohol and 30-20% by weight of acetophenone, the balance being methyl alcohol.  The composition, which is intended for use as a subbing layer for oriented polystyrene sheeting used as a photographic film base, may also contain an acid dispersing agent for the gelatin, e.g. 0,04-1,0% by weight acetic acid, and from less than 0,001% to not more than 0,026% by weight of a gelatin hardener, preferably chromic chloride hexahydrate.  Resins adhering to oriented polystyrene film base, e.g. polybutyl methacrylate, may be added in a concentration of up to 50% of the weight of gelatin employed, insofar as they yield a homogenous solution therein.
Patent GB-1247677-A (GB)
Title: Repeating propellant gas powered driving tool
Inventor: DARDICK DAVID
IPC: B25C1/18
Filed: 1968-09-03
Abstract: 1,247,677. Cattle stunners. T.R.W. Inc. 3 Sept., 1968 [1 Sept., 1967], No. 41906/68. Heading AIM. [Also in Division B4] A cattle stunner comprises a breech mechanism 220 (identical with that of the tool of Figs. 1-10, not shown (see Division B4) in cluding a rotary cylinder 228 having three cartridge chambers (only one being shown) for receiving cartridges 230 from a cartridge in feed position (not shown) and for transporting the received cartridges from the infeed position to a firing position, a collar 206 slidable axially relative to the barrel 208, means 212, 214 for rotating the cylinder in one direction in dependence on movement of the collar on the barrel, and a captive piston 220. When the stunner is forced against an animal the collar moves rearwardly relative to -the barrel 208 and'the drive means causes a chamber to move from the infeed position to the firing position (Fig. 11a). When the tool is withdrawn the cylinder will again be rotated by the drive means to move the chamber previously in the firing position to an eject position, and the next chamber to the infeed position.