baber/WOPTO huggingface dataset:
Patent GB-637089-A (GB)
Title: Means for use in a moulding machine for pasty materials for determining the correct filling of the moulds
IPC: A21C11/20
Filed: 1946-10-11
Abstract: 637,089. Feeding material to moulds. KUSTNER FRERES & CIE SOC. ANON. Oct. 11, 1946, No. 30414. Convention date, Oct. 23, 1945. [Class 87 (ii)] Relates to apparatus for moulding pasty material within a mould 3 and consists in means movable in response to the attainment by the material fed to the mould of a predetermined pressure, and means for transmitting this movement to an indicating device and/or to a device controlling the supply of pasty material to the mould. In one form, Fig. 1, the device comprises a piston 7 movable in a cylinder 12 in the wall 6 of the feed chamber. Whilst the mould is being filled the piston remains stationary, held by an adjustable spring 8 in the position shown. When the mould is full the increased pressure of the plastic material caused by continued movement of the feeding mechanism (e.g. a screw 2) will force the piston to move and thus either operate a warning mechanism or actuate mechanism for stopping the screw and changing the mould. In a modification, Fig. 4 (not shown), the piston rod 20 abuts a membrane extending across the mouth of the cylinder 12, replacing the piston 7. In the modification shown in Fig. 3 the feeding screw 2 moves backwards against a spring 14 when the mould is full and actuates the warning &c. mechanism.
Patent GB-1599888-A (GB)
Title: Preparation of methyl and ethyl esters of cyclopropane carboxylic acids
IPC: C07C69/743
Filed: 1977-07-20
Abstract: Compounds of the general formula <IMAGE> in which R<1> and R<2> in each case stand for an alkyl group having 1 to 4 carbon atoms or together form an alkylene group having up to 5 carbon atoms, X<1> and X<2> in each case stand for a hydrogen atom, an alkyl group having 1 to 4 carbon atoms or for a halogen atom or, with one another, form an alkylene group having up to 5 carbon atoms or X<1> denotes a hydrogen atom and X<2> is a monohalovinyl, dihalovinyl or dimethylvinyl group and R stands for a methyl or ethyl group, are prepared. A procedure is used in which a cyclopropanenitrile of the general formula <IMAGE> is reacted with methanol or ethanol under substantially anhydrous conditions at a temperature from 80 to 200 DEG C and in the presence of a mineral acid as a reaction catalyst and of a scavenging agent for the ammonia formed during the reaction. The compounds of the formula I are intermediates for the preparation of synthetic pyrethroids.
Patent GB-1395607-A (GB)
Title: Processes and apparatus for the removal of air from bottled  beverages
IPC: B67C3/22
Filed: 1972-06-29
Abstract: 1395607 Carbonated beverages SEITZWERKE GmbH 29 June 1972 [30 June 1971] 30488/72 Heading B1C A liquid jet (e.g., hot or cold water) is injected into an aerated beverage (e.g. beer) in a bottle to form foam in the space above the beverage, and a jet of inert gas is then directed into the foam to remove therefrom large bubbles containing air. The liquid and gas injections may take place as the bottles are conveyed from a filling machine (10, Fig 1, not shown), to a capping machine (11), the injecting nozzles (18, 25) being mounted by a swivel joint (20) so that they can be adjustable separated by a distance gate or sleeve bottle spacings.
Patent GB-1360216-A (GB)
Title: Acoustic receivers and/or transmitters
IPC: G10K11/30
Filed: 1971-06-29
Abstract: 1360216 Acoustic receivers and transmitters; acoustic lenses THOMSON-CSF 29 June 1971 [10 July 1970] 30517/71 Headings H4J and H4X An acoustic receiver and/or transmitter device, e.g. for submarine acoustics, comprises an acoustically transparent envelope 2 defining a substantially spherical chamber filled with fluid 1 (e.g. a fluorocarbon mixture of refractive index n = 2). The fluid 1 forms an acoustic lens. Electro-acoustic transducers are disposed inside the chamber and are equidistant from the centre 0 of the chamber to define a spherical focal surface 30 of the lens. The transducers are distributed and electrically connected in groups which occupy respective regions 300 of the focal surface. The regions 300 subtend substantially equal respective solid angles 2α o  at the central point 0. The transducers of the groups are distributed substantially uniformly over the regions 300 respectively occupied by the groups. Each group predefines a single beam for received and/or transmitted acoustic energy. Preferably the regions 300 are circular and the transducers are identical to one another. The aperture of the lens is the largest crosssection D of the lens. The acoustically transparent envelope is sufficiently thick so that secondary crests of the intensity function of acoustic radiation are reduced so as to be negligible in comparison to a main crest of the intensity function (Fig. 3, not shown). The lens may be a plurality of concentric layers of fluid of different refractive indices.
Patent GB-189339-A (GB)
Title: Improvements in and relating to holders for thermionic valves
IPC: H01R33/76
Filed: 1921-11-16
Abstract: 189,339. Welch, A. P. Nov. 16, 1921. Vacuum tubes.-A holder E has 'barriers H on the top, or underside, or both, between the contacts A - - D, so as to provide long leakage paths between contacts at different potentials. An additional contact F, engaging with the valve cap, may be connected to one of the contacts, or to a separate contact, for earthing.
Patent GB-190870-A (GB)
Title: Improvements in bed or bedsteads for being folded into cabinets or the like
IPC: A47C17/48
Filed: 1921-11-17
Abstract: 190,870. Corser, T. Nov. 17, 1921. Folding and cabinet bedsteads.-A bed of the type adapted to be folded into a casing or cabinet is provided with one or more extensions which may be folded back upon the bed. The extension c is connected to the bed b by rigid members h, the members h having pivotal connection with brackets b' on the bed and brackets c<2> on the extension. The members h cause the extensions to move parallel to the plane of the bed. The abutting faces b<3> and c<3> of the bed and extension are preferably bevelled, and the extension has legs or supports. The bed is hinged at d to the cabinet a, which may have a small door a<1> to allow movement of the extension. Specification 172,846 is referred to.
Patent GB-1474953-A (GB)
Title: Recording/playback transducer positioning and adjusting device
IPC: G11B5/48
Filed: 1974-07-11
Abstract: 1474953 Track-changing devices BASF AG 11 July 1974 [12 July 1973] 30717/74 Heading G5R Track changing of a record/playback transducer 4 is effected by a device 1 comprising a transducer support 3 movably mounted in a mounting means 2 and contacting one of a plurality of cam levels 7 of a cam 6, each level 7 corresponding to a respective track 10 on a record medium 9, a motor 8 for stepwise movement of cam 6 to bring a selected cam level 7 into contact with support 3, an indicating element (14), Fig. 4 (not shown), carrying markings (15) each provided in a location corresponding to a respective cam level 7, and monitoring means 16 for sensing the markings (15) and controlling the movements of the motor 8 to control automatically the position of the cam 6 in response to the sensed position of the markings (15) on the indicating element. In a video tape apparatus using magnetic tape 9 having twenty eight longitudinal video tracks 10 of 0À004 inch width and 0À008 inch pitch, optical, fluidic or magnetic means sense the ends of tape 9 and effect reversal of tape drive and operation of a single- or bi-directional stepping motor 8 to step a cam 6 having twenty eight steps 7, with the first and last steps joined by an oblique portion 11. Oblique portion 11 may have mechanical stops to prevent rotation of cam 6 in either direction beyond the last step 7 prior to portion 11. Sup - port 3 carries transducer 4 at one end and a ball 12 at the other, a spring 29 urging ball 12 against cam 6 and urging a pin 21 against a pin 20, these pins ensuring accurate vertical sliding of support 3. The height of transducer 4 relative to a selected track is adjustable over a 0À031 inch range by a conical set screw (23), Fig. 2 (not shown), operable to move ball 12 into and out of a cavity (13) in support 3, and azimuthal adjustment is effected by acting on pin 22 to swing frame 2, support 3 and transducer 4 about pivot pin 25, screws 26 and spring washers 27 maintaining the adjusted azimuth. The circumference or lower surface of cam 6 is provided with the markings (15) in the form of indentations, elevations, openings, electrical or magnetic means for activating the monitoring means 16 which may be an assembly of switches. Another switch responsive to the markings (15) is used to indicate when the first or last cam level is engaged by the support 3.
Patent GB-188666-A (GB)
Title: Drying gases
IPC: B01D53/26
Filed: 1922-11-10
Abstract: A process of drying gases consists in treating them with active carbon, preferably of vegetable origin and dehydrated by ignition or by heating in vacuo before use, and in drying the gases by adsorption.  One method of carrying out the invention consists in passing the gases through containers filled with granules of active carbon and arranged in series so that as one container becomes exhausted it can be cut out of the series and the saturated carbon reactivated by heated inert gas, the inert gas being passed directly into the container, or into a perforated tube in the container with means for closing the perforations. The containers may be cooled to remove the heat of adsorption, the last containers of the series being cooled more than the first, and the cooled gas used for cooling the moist gas on the counter-current principle.  The drying is facilitated if the gas is compressed or its temperature reduced.  The Specification as open to inspection under Sect. 91 (3) (a) states that the process can be used to separate mixtures of gases, for example, light and heavy hydrocarbons, or to remove impurities, such as hydrocarbons, carbon dioxide, &c. from hydrogen.  This subject-matter does not appear in the Specification as accepted.
Patent GB-317673-A (GB)
Title: Improvements in valves
IPC: F16K27/02
Filed: 1928-10-24
Abstract: 317,673. Gonyk, I. Oct. 24, 1928. Casings; leakage, preventing. - The e casing of a delivery valve for fluids under pressure is formed by two substantially symmetrical halves, 2 and 3, pressed from sheet metal, the halves being assembled by brazing or welding the contiguous edges to strips 4 inserted between the edges of the pressings. The valve seat 11 is carried by a tubular reinforcing-member q, integral with which is a threaded extension 10 for securing the valve to the end of the pipe, the inlet end 5 of the casing being reinforced by an abutment ring 6 welded or brazed to the casing. Another reinforcing-ring 8 is similarly secured to the rim of the opening in the casing accommodating the valve spindle housing 12. A seating 13 is formed at the bottom of spindle housing, against which an electric packing sleeve 14 is pressed by the internal-fluid pressure, this sleeve being fitted between the valve-head and the packing seating 13 so that the opening of the valve causes the packing to bear with increased pressure on its seating.
Patent GB-1196654-A (GB)
Title: Improvements in Tube Furnaces for Carrying Out Cracking Processes
IPC: C01B3/38
Filed: 1967-07-04
Abstract: 1,196,654. Making combustible gas. FRIEDRICH UHDE G.m.b.H. 4 July, 1967 [4 July, 1966], No. 30770/67. Heading C5E. An indirectly heated furnace for cracking hydrocarbons to make town or synthesis gas, comprises one or more groups of vertical tubes 24 in a chamber, each group being rigidly connected at its lower ends to a collecting pipe 11 located below the floor of the chamber, the pipe comprising the sole support for the group, and the pipe and the lower portion of the tubes up to about the upper level of the floor being internally thermally insulated at 27. The tubes are detachably connected to the pipe, e.g. through removable flanged distance pieces 13, and the lower (exit) end of the tubes may have tubular inserts 26, and outlets 28 for removal of catalyst from the tubes 24 after removal of the insulation 27 between the tubes 24, 26. The insulation 27 may comprise shaped superimposed members (see Fig. 3, not shown), or particulate material.
Patent GB-266828-A (GB)
Title: Improvements in or relating to roller bearings, said improvements being applicable also to epicyclic gearing of the friction roller type and also to other analogous mechanisms
IPC: F16C33/58
Filed: 1925-12-07
Abstract: 266,828. Cowburn, F. C., and Godfrey, E. L. Dec. 7, 1925. Addition to 250,412. Friction gearing.- One or both boundary edges of the depressions or flats 4 of the conical roller epi- -cyclic friction gearing described in the parent Specification is, or are, located in :a line passing through the apex 6 of the conical rolling member when in its correct position, this line being co-planar with the main axis of the gearing. As shown, the apex 6 is in the main axis of the gearing.
Patent GB-759002-A (GB)
Title: Production of semiconductor bodies
IPC: H01L21/228
Filed: 1954-10-26
Abstract: 759,002. Semi-conductors. WESTERN. ELECTRIC CO., Inc. Oct. 26, 1954 [Oct. 26, 1953], No. 30856/54. Class 37. [Also in Group XI] A method of producing a PN junction in a semiconductor body comprises (i) placing a mass containing or consisting of a significant impurity upon a semi-conductor body; (ii) heating the assembly to a temperature above the eutectic temperature of said impurity and semi-conductor but below the melting-point of the semi-conductor; (iii) cooling the assembly to a substantially lower temperature but which is still above the eutectic temperature; (iv) flooding or covering the assembly with a molten metal having a melting-point substantially below that of the impurity; and (v) cooling the assembly to room temperature. The invention may be performed to produce PN junctions of silicon-aluminium or silicon/aluminium alloysilicon or germanium-aluminium or germaniumantimony using as molten metal: indium, lead, cadmium, thallium or bismuth. In the example of Fig. 1 an N-type wafer or disc silicon/aluminium assembly 20/21 in outer crucible 17 and indium metal 22 in an inner crucible 18 are heated to 900/950‹ C. and this temperature is maintained for about one-half hour. Then the temperature is lowered slowly at a rate of about one degree per minute to about 700‹ C. At this time a plug 19 forming part of inner crucible 18 is raised by rod 16 so that molten indium 22 flows over and covers the assembly 20/21. This condition is maintained for about 5-10 minutes and then H.F. heating coil 23 is disconnected and cooling to room temperature proceeds. The product as illustrated in Fig. 2 comprises a portion 21A of N-type silicon forming a junction J with a layer 25 of P-type silicon and two aluminium-indiumsilicon zones 26, 27, one 26, rich in indium and the other, 27, rich in aluminium. The layers 26, 27 are removed, e.g. by etching in hydrochloric acid, and connections made to produce a junction diode, Fig. 4, and the Specification includes characteristic curves, Fig. 5 (not shown), for such a diode. The apparatus of Fig. 1 may also be utilized for producing a PN junction in a body of germanium by placing together P-type germanium and antimony, heating to 760‹ C., slowly cooling to 600 ‹ C. and covering the combination with molten lead and finally cooling to room temperature. In applying the invention to a silicon/aluminium alloy-silicon assembly the silicon/aluminium alloy has a composition corresponding to a solution of the silicon in the aluminium at a predetermined temperature (selected from a solubility curve, Fig. 3 (not shown)) and the assembly is (i) heated slowly to this temperature and then raised to a higher temperature but still below the melting-point of silicon; (ii) cooled to a temperature between the said predetermined temperature and the eutectic temperature; (iii) covered with additive metal (e.g. indium) and then cooled. The invention is directed towards producing PN junctions free from strains and cracks. Specifications 632,942, 700,231 and 724,930 are referred to.
Patent GB-533802-A (GB)
Title: Improvements in or relating to protective visors
IPC: A42B3/22
Filed: 1939-11-27
Abstract: 533,802. Helmets. FAIREY AVIATION CO., Ltd., and LOBELLE, M. J. O. Nov. 27, 1939, No.,30879. [Class 631 A helmet is provided with a visor f pivotally mounted so that it may be lowered in front of the eyes or raised inside the helmet. A bearing b secured to the underside of the brim at the front engages a stout wire c pivoted to the rear lower corner of the visor and to a link e pivoted to a bifurcated stud d secured to the underside of the brim. The visor may be of thin sheet steel suitably perforated or of chain mail or like flexible reticulated material stretched over a framework. Finger grips m enable the visor to be raised or lowered, a spring clip k engages the inside of the helmet to hold the visor in its raised position. The linkage moves through a dead centre position so that the visor tends to remain either fully up or fully down. Give in the link e may allow the movement, or a loose pivotal connection or resilient bearing may be provided. In a modification, the bearings for the links may be carried by a separate member. secured to the brim of the helmet, which member may be integral with straps passing inside the helmet to a bolt at the centre of the crown.
Patent GB-512373-A (GB)
Title: Improvements in or relating to the circulation of liquid in photographic baths
IPC: G03D3/02
Filed: 1938-10-24
Abstract: 512,373. Photographic processing apparatus. GEYER, K. Oct. 24, 1938, No. 30691. Convention date, Oct. 26, 1937. [Class 98 (ii)] In photographic apparatus, particularly developing apparatus for films moving continuously in a vertical direction through the apparatus, the film treating tank is divided by one or more internal partitions into at least two intercommunicating compartments and the liquid is circulated between and within the compartments by a vane wheel mounted within the tank itself. The liquid level may be maintained constant within narrow limits. The vane wheel may be driven by the film driving motor. As shown, the developing tank is divided by the partition 2 into compartments 3 and 4. The vane wheel 5, driven by a pulley 6 inside or outside the tank, is arranged near the lower opening in the partition 2. The film 7 may be passed into both compartments, or one compartment may be used solely to accommodate the developer feed and a temperature-regulating device. A number of the tanks may be used for the same or both or successive different baths.
Patent GB-341507-A (GB)
Title: Improvements in or relating to incandescent mantle mountings
IPC: F21H1/00
Filed: 1929-10-11
Abstract: 341,507. Incandescent burners. IMBER, J., 118, Southwark Street, London. Oct. 11, 1929, No. 30902. [Class 75 (i).] Mantle supports.- An upright mantle fitting adapted to be detachably mounted upon a wick burner comprises a supporting loop 2 and a ring connected thereto for centring the mantle at its base, the ring being adapted to be freely supported upon the burner with the mantle and loop entirely above the burner. In one form, a wire ring 8, Fig. 1, is formed with lateral loops 5 carrying the sockets 3 for the loop 2 and with downwardly - projecting loops 9 for engaging a groove 4 in the upper section 10 of a burner cone 11. In a second form, a ring 12, Fig. 2, of channel-shaped section is adapted to receive the lower end of the mantle and be supported in a groove 6 in the upper section 14 of a burner cone 15 detachably connected to the inturned rim 16 of an outer wall 17 of a burner. In a modification, the ring 12 is formed integral with a downwardly-extending ring adapted to engage over the top of a burner cone. In a third form, a perforated ring surrounding the base of the mantle is adapted to be supported on the inturned rim of an outer wall of a burner or by a groove in the upper section of a burner cone. Specification 314,967, [Class 75 (i), Burners &c.], is referred to.
Patent GB-1030387-A (GB)
Title: Hollow vessels and the manufacture thereof
IPC: F16J12/00
Filed: 1964-08-04
Abstract: A pressure vessel comprises an arcuate wall fabricated from an alloy consisting of 3.5-4.5% by weight of aluminium, 0.2-0.3% oxygen, balance titanium and impurities, the alloy being plastically deformed during fabrication of the wall to impart to the alloy an "R" value of at least 5.  The alloy is cast and then forged and rolled into sheet at a temperature below 1600 DEG F. before being pressed into hemispherical form.  The sheet may be annealed at 1000-1400 DEG F.  A specific alloy includes A1.4%, oxygen 0.25%, balance Ti, impurities not exceeding 0.3%.  The two walls of the vessel are welded together using a filler wire 4% Al balance Ti.
Patent GB-823533-A (GB)
Title: Magnetic devices
IPC: G06F7/38
Filed: 1955-10-28
Abstract: 823,533. Circuits employing bi-stable magnetic elements. SPERRY RAND CORPORATION. Oct. 28, 1955 [Oct. 28, 1954], No. 30947/55. Class 40 (9). In an arrangement in which a saturable magnetic core 10, Fig. 1, having " set " and " clear " remanent states of opposite polarity is associated with a further core 12, a transfer pulse from leads 28 is applied over windings 18, 20 and 22 to both cores and is effective to clear core 10 and set core 12 only if core 10 is initially in the set condition. The windings 20, 22 are connected in parallel paths with rectifiers 14, 16 which suppress induced loop currents, and the paths are arranged so that the path including winding 20 has the lower resistance. When core 10 is in the clear condition, the transfer pulse in winding 18 only drives the core into saturation and the division of current in the parallel paths substantially corresponds to the respective resistances. In this case the current through winding 22 is insufficient to affect the magnetic state of core 12. If, however, core 10 is set, the reversal of magnetic polarity by the pulse induces an opposing voltage in winding 20, and as a result the current in winding 22 is raised to an effective value and core 12 is set. In a modification, Fig. 3, the minor induced voltage in winding 20 arising when the transfer pulse is applied to core 10 in the clear condition is suppressed in the circuit of core 12 by a further core 30. This core always operates in the saturated clear condition and induces a minor inhibiting voltage in winding 34 in response to changes in the transfer current. The arrangement may perform the logical OR operation, Fig. 4, and in this case comprises a pair of cores 42, 44 which permit the core 40 to be set by a transfer pulse if either are in the set condition. In a modification, Fig. 5, the logical AND operation is performed by a pair of cores 70, 72, the parallel arrangement of the respective windings 80, 82 permitting core 74 to be set only if cores 70 and 72 are both initially in the set condition. The arrangements shown in Figs. 4 and 5 are combined in Fig. 6 which provides the logical OR/AND operation in terms of the magnetic states of cores 102, 104 and 106. The two cores shown in Fig. 1 may be connected to operate as a trigger pair, Fig. 7, in which the magnetic set state alternates between cores 124 and 126 in response to transfer pulses applied alternately to leads 120, 122. This arrangement, and a further core 136, Fig. 7A, may be combined in a logical AND circuit in which core 134 is set by a transfer pulse on lead 120 only if one core of the trigger pair and core 136 are initially in the set condition. It is stated in the Specification that the controlled core, e.g. core 12 in Fig. 1, may be cleared when a transfer pulse is applied to a set core 10 by merely reversing its winding 22.