baber/WOPTO huggingface dataset:
Patent GB-1318442-A (GB)
Title: Method of manufacturing electrically fused refractory products of  alumina with a high corundum content and products obtained thereby
IPC: C04B35/107
Filed: 1970-08-26
Abstract: 1318442 High corundum alumina L'ELECTRO-BEFRACTAIRE 26 Aug 1970 [12 Sept 1969] 41127/70 Heading C1A A compact alumina product containing from 75 to 98% by weight of corundum is produced by (a) melting an alumina-based batch containing less than 0À1% of Fe 2 O 3 , less than 0À1% of TiO 2  and insufficient alkali and optionally alkaline earth metal compounds to prevent the obtention of at least 75% by weight of corundum, in an electric arc furnace under short arc conditions, (b) adding into the batch or into the molten material obtained in step (a) an amount of a solid reducing agent sufficient for reducing impurities, (c) blowing an oxidizing gas into the molten material to bring the molten material just to the oxidation-reduction equilibrium and finally, (d) rapidly casting the molten product. The reducing agent may be carbon, graphite, aluminium or aluminium carbide; graphite in a quantity of about 0À5% by weight of the charge is preferred. The oxidizing gas may be carbon dioxide or oxygen and is preferably blown into the molten bath after switching off the current of the electric arc.
Patent GB-980447-A (GB)
Title: Milling machine
IPC: B23Q35/10
Filed: 1962-10-31
Abstract: 980,447. Copy-milling; machine tool details. H. R. DE VLIEG. Oct. 31, 1962, No. 41129/62. Headings B3B and B3K. A milling machine comprises a work-support 51 which is oscillated and moved longitudinally and laterally by cams 54, 55, 53 to generate a contour on the workpiece. The work-support is housed in a member 30 sliding on rods 26, 27 carried by a saddle 10 moving on rods 17, 18 in a frame 12, 13. The cams 53-55 are mounted on a shaft 52 rotated by a motor 164 through worm gearing 184, 185. The housing 30 is moved by the cam 55 engaging an adjustable follower 71, the saddle 10 is moved by the cam 53 engaging a follower 82 resting on an adjustable roller 89 and the work-support 51 is oscillated by the cam 54 engaging an adjustable follower mounted on an arm keyed to the work-spindle 50. The milling-cutter 141 is rotated by a motor 100 and is mounted in a quill movable through rack-gearing either by a hand-knob 139 or a cam 148 on a rod 143 attached to the housing 30. The work is secured in an indexing fixture 200, Fig. 12, secured to the shaft 52. The work is indexed by a manually, or automatically, rotated pinion 221 and is locked by a pawl 213.
Patent GB-1430852-A (GB)
Title: Catamenial device comprising an absorbent tampon
IPC: A61F13/20
Filed: 1973-05-17
Abstract: 1430852 Tampons: inserters PROCTER & GAMBLE CO 17 May 1973 41146/75 Divided out of 1430851 Heading A5R A catamenial device comprises a tampon 21 compressed within an inserter 35, the tampon comprising a flexible fluid-permeable overwrap 23 containing an absorbent body 24 of separate pieces of resilient absorbent cellular polymeric material The tampon is described and claimed in the Specification 1430851. The inserter has inwardly tapering flexible segments at its leading end to provide a normally closed but openable end. The inserter may be moulded from polythene.
Patent GB-1399279-A (GB)
Title: Method and apparatus for the injection moulding of plastics  parts
IPC: B29C45/16
Filed: 1972-09-06
Abstract: 1399279 Injection moulding foam cored articles R HANNING 6 Sept 1972 [7 Sept 1971] 41227/72 Heading B5A A plastics article having an unfoamed covering 60 on a foamed core 70 is injection moulded in a single continuous operation by injecting cover material 6 initially alone and then simultaneously with core material 7, and finally injecting cover material alone to form a complete covering A screw preplasticizing unit (not shown) feeds cover material 6 through a non- return valve 41 into an injection cylinder 1 forcing the piston-cylinder 2 rearwardly either directly or with servo-assistance. The nozzle 20 is carried rearwardly by the piston-cylinder 2 after an initial relative movement in which the passages 21 become closed by the front wall of the piston-cylinder. Foamable material 7 in the piston-cylinder 2 is plasticized by a reciprocable screw 3 and then a slide valve 11 in injection nozzle 10 is opened. The piston 3 is advanced hydraulically or pneumatically, thus urging nozzle 20 forward and preventing opening of passages 21, and the piston-cylinder 2 is advanced to inject covering material from the enlarged cavity in front of it. Movement of nozzle 20 is stopped before that of the pistoncylinder, thus opening passages 21 and causing injection of core material within the covering. The supply of core material is interrupted for a final injection of cover material alone. Nozzle 20 may have an extension 22 (Fig. 6, not shown) which reaches the mould cavity when fully advanced. The pressures of the materials are measured by gauges 13, 23.
Patent GB-1064192-A (GB)
Title: Folding door with flexible joint
IPC: E06B3/48
Filed: 1964-02-28
Abstract: 1,064,192. Slidable folding doors; flexible hinges. PANELFOLD DOORS Inc. Feb. 28, 1964, No. 41394/65. Divided out of 1,064,191. Headings E1J and E2F. A folding door comprises elongated edge-toedge panels 16, each panel edge having a groove and flexible joints 10 of resilient synthetic plastics material forming a seal, between adjacent edges 18, each including a pair of body portions 22, each covering an edge 18 and having a flange 24 in a groove in a panel 16, a connecting portion 28 between the body portions 22 defining a hinge axis. Each flange 24 has an enlarged edge 26 received in an undercut portion of the groove.
Patent GB-1324863-A (GB)
Title: Three dimensional coomon depth point exploration
IPC: G01V1/00
Filed: 1970-08-28
Abstract: 1324863 Seismic exploration TEXAS INSTRUMENTS Inc 28 Aug 1970 [28 Aug 1969] 41517/70 Heading H4D In a seismic exploration system, for providing three-dimensional common depth point (CDP) coverage of the sub-surface, seismic detectors are located along a plurality of spaced apart parallel lines and a plurality of seismic wave sources are located along each of a plurality of lines substantially normal to the said parallel lines. In the Fig. 1 example seismic waves are generated (by dynamite shots or truck-mounted vibrating, gas exploder or weight dropping apparatus) at a line of locations 28a to 28f sequentially, then at line 30a to 30f, and so on, and the outputs of geophone lines 12a-12x, 14a-14x &c. are recorded at 24 on a multi-trace recorder or recorders. Considering sub-surface point 40, it will reflect waves from source 34a to geophone 22a, from source 32a to geophone 22b and so on to give CDP coverage of point 40 in a vertical plane parallel to the lines of geophones. Similarly it will reflect waves from source 34b to geophone 20a, from source 34c to geophone 18a and so on to give CDP coverage of point 40 in a vertical plane generally perpendicular to the lines of geophones. In practice the number of sources or geophones per line may differ from the number shown and the lines are moved along a traverse according to the " roll-along " technique. The source array may be arranged between two geophone arrays like the geophone array shown, with the source locations aligned with the lines of geophones instead of laterally offset as in Fig. 1 (Fig. 5, not shown). The recorded data enables the estimation of static corrections and may be processed to enhance the signal-to-noise ratio. Processing procedure mentioned are migration, mapping, velocity determinations, compositing, mixing, coherence filtering, diversity stacking and velocity combination, and these may be performed by a digital computer.
Patent GB-1159584-A (GB)
Title: Improvements in Electrical Machines
Inventor: SOPER JOHN ALEXANDER
IPC: H02K19/26
Filed: 1965-10-05
Abstract: 1,159,584. Synchronous machines. CENTRAL ELECTRICITY GENERATING BOARD. 17 Oct., 1966 [5 Oct., 1965], No. 41604/68. Divided out of 1,159,583. Heading H2A. A synchronous machine rotor has two windings housed in slots in the cylindrical rotor which when separately excited produce magnetic fields having their axes spaced apart by an angle less than 90 degrees electrical but greater than 0 degrees electrical. Winding 17 is housed in slots 24, 26 and winding 18 is housed in slots 23, 25 so that the angle between their magnetic field axis is about 60 degrees. In operation, winding 17 provides the synchronizing torque of the machine at all loads and the excitation of winding 18 controls the reactive power absorbed or generated by the machine.
Patent GB-960684-A (GB)
Title: Improvements in or relating to work holding devices
IPC: B25B1/24
Filed: 1959-12-08
Abstract: 960,684. Work-holders. G. F. STAPLES. Dec. 5, 1960 [Dec. 8, 1959], No. 41607/59. Heading B3B. A pair of jaw mounting members 1 for securing to a vice &c., by grooves 2 and holes 3, has a pair of semicircular jaws 8 releasably secured thereto, with at least one aperture 12 for securing a workpiece or workpieces. A part cylindrical recess 4 in each member 1 forms a ledge 6 for supporting the base of a jaw, and a part annular groove 7 co-operates with a similar rib 10 on the jaw, to axially locate the latter. Each jaw is releasably retained in its member 1 by springs 14 held in position by clamps 15. Specification 955,467 is referred to.
Patent GB-1026668-A (GB)
Title: Core punch and bottom stop therefor
IPC: B30B11/04
Filed: 1963-10-22
Abstract: 1,026,668. Releasable core punch. CINCINNATI SHAPER CO. Oct. 22, 1963 [Jan. 17, 1963], No. 41686/63. Heading B5A. In a machine for compression moulding articles from powdered material in which the article is ejected step-by-step from the dies the core punch is raised to the operative position by a piston 19 attached thereto. During the moulding the punch floats downward until its enlarged lower end 18a abuts the wedgeshaped segments 28 of a split ring carried between shoulders 27, 29 which define an annular recess in a vertically adjustable member 25. When the moulding has been completed and the dies have been moved down to eject the upper stepped portion of the article wedge members 45 operated by piston and cylinder mechanisms 51, 52 are moved downwards to force the segments 28 apart as in Fig. 4 (not shown). At the same time the direction of action of cylinder and piston 19, 21 is reversed so that when the pressure acting upon the upper surface of piston 19 overcomes the frictional force between the punch and the compressed material which happens during the ejection of the final step of the article the core is forced down through split ring into the bore 26 of member 25 and is thus withdrawn from the article. The wedge members are shaped so that when they are raised their surfaces 47 act upon pins 44 of faces 43 to reclose the ring thus emabling the cycle to be repeated.
Patent GB-928215-A (GB)
Title: Improvements relating to optical viewing devices including electron image amplifiers
IPC: G02B23/12
Filed: 1961-11-22
Abstract: 928,215. Optical viewing devices. OPTISCHE INDUSTRIE DE OUDE DELFT N.V. Nov. 22, 1961 [Nov. 22, 1960], No. 41795/61. Class 97 (1). A device, such as an infra-red telescope, comprises an electronic image amplifier tube 3 and a binocular microscope for viewing the fluorescent image screen 5, this microscope having a single objective 6 with a relative aperture of at least 1: 1 and its focal surface coincident with screen 5, two lenses 7 with parallel axes and an absolute aperture about half that of the objective 6, two eyepieces 10 spaced by the interocular distance and means (e.g. Porro prisms of the second type) to span the light beams from lenses 7 by the interocular distance. The overall magnification of the viewing system is preferably between 10x and 20x, the system having an exit pupil larger than the diameter of the dark-adapted eye.
Patent GB-1065054-A (GB)
Title: Improvements in or relating to printing and stencilling processes
Inventor: LLOYD-JONES BRIAN
IPC: G03F1/56
Filed: 1962-11-05
Abstract: 1,065,054. Photographic processes. PLASTI-PRINT Ltd. Dec. 31, 1963 [Nov. 5, 1962], No. 41797/62. Heading G2C. Coloured images are produced by coating a polymeric support (e.g. polyvinyl chloride) with a bichromated gum acacia (gum arabic) layer, exposing the material to an original, removing the unhardened areas with a solution containing a dye so that the polymeric areas thus exposed are dyed and then removing the hardened areas to leave a dye image on the polymeric layer. Other polymeric supports such as cellulose acetate, polystyrene or acrylic resins may be used.
Patent GB-1243011-A (GB)
Title: A process and an apparatus for carrying out evaporations, rectifications and liquid-vapour reactions
Inventor: LIPPERT AXEL
IPC: B01D3/06
Filed: 1968-09-03
Abstract: 1,243,011. Evaporators; rectification. FARBENFABRIKEN BAYER A.G. 3 Sept., 1968 [4 Sept., 1967], No. 41832/68. Heading B1B. Liquid is evaporated by heating it under pressure and introducing the hot liquid through an expansion nozzle 12 into a helically-curved channel 9 arranged between tubes 1 and 5; the liquid droplets separate from the vapour and are deposited as a film or stream on the inner wall of tube 5. The vapour and liquid are discharged from the outlet end of channel 9 into separator 14. The outer tube 5 may be heated by jacket 6, and the inner tube may be heated by jacket 2. When the apparatus is used for the rectification of a mixture, tube 1 is cooled so that the higherboiling component is condensed and returned by centrifugal force to the heated outer tube 5. The cross-sectional area of the helical channel may widen in the direction of flow, and the bottom of the channel may slope down towards the outer tube.
Patent GB-1523887-A (GB)
Title: Aircraft take-off and landing system and method for using same
IPC: G01S1/04
Filed: 1975-10-13
Abstract: 1523887 Visual take-off and landing aids for aircraft N G BASOV I A BEREZHNOI V S VEKSHIN V A DANILYCHEV A I ELATONTSEV V V IGNATIEV V D KARYSHEV and A K TOGULEV 13 Oct 1975 [22 Oct 1974] 41881/75 Heading G4F An aircraft take-off or landing system utilizes one or more directional extended references made up of respective electromagnetic pencil beams each with a divergence no greater than 5 degrees, at least one beam source being positioned on a flight platform and its beam producing a symbol of a specified configuration perceived aboard the aircraft owing to scattering of the radiation and thereby indicating the course and glide slope of a desired aircraft take-off or landing path. Perception includes non-visual sensing or radiation to control an indicator. Sources may be lasers or masers and may incorporate reflectors. Preferred beams divergence is 5<SP>1</SP> to 10<SP>1</SP>. Radiation wavelengths are in atmospheric windows and may be visual, or infra-red, or X-ray; and in fog intense infra-red energy is employed to dispense the fog to permit visual ray passage. In a simple embodiment, utilizing one source of radiation, Fig. 1 (not shown) the symbol orientation as perceived for various positions of aircraft A relative to the desired landing path (see cI) are illustrated in Fig. 3. More complex embodiments incorporate (a) landing lights and marker lights groups in addition to a course and glide slope group, with different colours for the different groups, (b) frequency or amplitude modulation of radiation, including coding of identification of an airfield, (c) "dogleg" landing paths, (d) kinematic symbols, utilizing rotating sources, see, e.g. Fig. 47, and (e) aircraft landing on a ship or on the sea, Figs. 37 to 42 (none shown). Movements of attitude of the ship on the sea may be indicated by the symbolism. The perceived symbols may indicate to the pilot the bank of the aircraft and deviation from an assigned landing speed. Beams may be added to define corridors.
Patent GB-1025198-A (GB)
Title: Casting of metal
IPC: B22D41/20
Filed: 1962-11-08
Abstract: 1,025,198. Casting-machines. BOCHUMER VEREIN FUR GUSSSTAHLFABRIKATION A.G. Nov. 8, 1962 [Nov. 8, 1961; June 20, 1962], No. 42249/62. Heading B3F. Degasified metal is poured into a receiving vessel having at least two perforations spaced along its axis, and passes in vacuo through the perforations into a slab mould of oblong crosssection, the receiving vessel being so disposed over the mould that the said axes lies immediately above and parallel to the longitudinal axis of the mould cross-section. The perforated receiving dish and mould may be contained in one vacuum chamber on which the ladle sits, and the ladle may be contained in a second vacuum chamber. Alternatively, Fig. 3, there are three vacuum chambers 1, 6 and 8 giving three degasification stages. In a modification, Fig. 5 (not shown) the perforations of the tin dish 4 are controlled by stoppers 27, 28 which may be actuated mechanically, hydraulically or electrically, e.g. as in Specifications 1,011,056 and 966,163 which are referred to.
Patent GB-1487833-A (GB)
Title: Method for applying a finishing screed
IPC: E04F21/24
Filed: 1975-09-30
Abstract: 1487833 Screeding surfaces M J GREENAN 30 Sept 1975 [30 Sept 1974] 42285/74 Heading E1S The base of a sedimentation tank, e.g., is screeded by initially laying down concentric rings 5 of e.g. a cement mortar, and then infilling between adjacent rings with a screeding material. The rings may be formed by employing a trowel 6 fixed to a rotating agitator arm 4, the trowel comprising two channel-sectioned portions, 11 and 13, each with downwardly diverging side walls, those of the lower channel 11 extending outwardly less in plan view than those of channel 13.
Patent GB-1019875-A (GB)
Title: Methods of balancing timepiece balances
IPC: G04D7/08
Filed: 1962-11-09
Abstract: 1,019,875. Clocks and watches. KIENZLE UHRENFABRIKEN A.G. Nov.9,1962,No. 42350/62. Heading G3T. The disclosure is similar to that of Specification 964,531 but the claims differ in scope.
Patent GB-1402901-A (GB)
Title: Weigh-bridge
IPC: G01G19/02
Filed: 1972-09-12
Abstract: 1402901 Weighbridge TRANSCALE A B 12 Sept 1972 [14 Sept 1971] 42360/72 Heading G1W A vehicle weighbridge comprises two spaced transverse beams 3 supported at their ends by load cells, and supporting a weighing platform comprising at least one premanufactured element 4 of pre-stressed concrete. The platform may comprise two or more premanufactured elements of pre-stressed concrete disposed in succession in the transverse or longitudinal direction of the bridge, and the elements may be inter-connected by hinges in the latter case. Each platform element may comprise pre-stressing elements 7, reinforcing bars 8 which may be pre-stressed or slack, conduits 9 for heating cables and conduits 10 for connections to the load cells. Alternatively the elements 7 may be replaced by post-stressing elements Fig. 3 (not shown). The transverse beams may be of prestressed or slack reinforced concrete, or steel, and may be cast in one piece with the platform elements.
Patent GB-1526878-A (GB)
Title: Electrolyte for electrical devices
IPC: H01G9/022
Filed: 1976-10-12
Abstract: 1526878 Electrolytic capacitors P R MALLORY & CO Inc 12 Oct 1976 [14 Oct 1975] 42387/76 Heading H1M The electrolyte in an electrolytic capacitor comprises an azeotropic composition whose boiling point is higher than that of any of the constituents, dissolved in dimethyl formamide or a homologue thereof. Suitable constituents are acetic acid and triethylamine. Reference has been directed by the Comptroller to Specification 1,316,825.
Patent GB-1326252-A (GB)
Title: Substituted cinnamic acid esters and radiation protection compositions containing them
IPC: C07C69/76
Filed: 1970-09-04
Abstract: 1326252 Substituted cinnamic acid esters HAARMANN & REIMER GmbH 4 Sept 1970 [5 Sept 1969] 42474/70 Heading C2C [Also in Division A5] The invention comprises 4-isopropyl cinnamic acid methyl ester, and 2,4-diisopropyl cinnamic acid methyl and ethyl esters, and also compositions comprising 4-methoxycinnamic acid isopropyl ester and at least one other ester chosen from 4-isopropyl cinnamic acid ether ester and the three above-named esters. These compositions are useful for the protection of human skin against radiation. 4-Isopropyl cinnamic acid methyl ester can be obtained by reacting 4-isopropyl benzaldehyde with methyl acetate in the presence of sodium or sodium methylate at 0-20‹ C. 2,4-Diisopropyl cinnamic acid methyl or ethyl ester may be obtained from 2,4-diisopropyl benzaldehyde with methyl or ethyl acetate in the presence of sodium or sodium methylate or ethylate at 0-60‹ C. Mixtures of all four esters may be obtained using mixed aldehydes with ethyl acetate and sodium methylate.
Patent GB-1404051-A (GB)
Title: Deburring machines
IPC: B24B/
Filed: 1972-09-13
Abstract: 1404051 Abrading G R SALVAIRE 13 Sept 1972 [16 Sept 1971] 42588/72 Heading B3D A machine for de-burring parts originating from a moulding machine comprises a container 20, Fig. 1, which may be stationary, rotatable or oscillatable and within which, or partly within which, one or more brushes 21 are provided, the brushes being idle or driven and arranged to cause motion of the parts within the container. The container is rotatable or oscillatable and may have one or more deflectors 22, 23 so that parts caught by the brushes rotate between the brushes and deflectors. In another embodiment, the container 20, Fig. 2, is stationary and shaped so that its walls are substantially tangential to the brush. The container may be rockable about pivots 25, 26 or 27 for the purpose of unloading. In a further embodiment, the container 20, Fig. 4, is substantially ellipsoid with a loading and unloading opening 24. The container is rotatable and has brushes 21 at the foci of the ellipse. A further brush may be disposed along the lower wall. The brushes are tangential to the container and may be tangential to each other. In an alternative arrangement, the walls of the container are formed by the brushes themselves. The parts may be cooled by cooling the walls of the container or by introducing a cooling fluid or coolant into the container.
Patent GB-1482415-A (GB)
Title: Electromagnetic relays
IPC: H01H50/20
Filed: 1974-10-17
Abstract: 1482415 Electromagnetic relays PLESSEY Co Ltd 17 Oct 1974 [11 Sept 1973] 42670/73 Heading H1N The movable contacts 7, 8 of an electromagnetic relay are provided on a member 6, of "springy" non-magnetic metal, which also provides the armature spring bias and residual spacing in the magnetic circuit of the relay. The member 6 is mounted on the armature 3 and has biasing spring legs 9, 10 which engage the rim of the electromagnet pot 2 and further flat legs 12, 13, 14 which extend between the pot and armature to set the residual gap in the armature attracted position. Fixed contacts 15, 16 are insulatingly secured in the pot 2. Armature and contact ssemblies may be provided at both ends of a core and coil assembly (Fig. 3, not shown) and normally closed or change-over contacts can be provided.