baber/WOPTO huggingface dataset:
Patent GB-1399674-A (GB)
Title: Measuring transducer of variable voltage into direct  voltage
IPC: G01R19/22
Filed: 1973-10-01
Abstract: 1399674 Detectors ZJEDNOCZONE ZAKLADY ELEKTRONICZNEJ APARATURY POMIAROWEJ 1 Oct 1973 [2 Oct 1972] 45706/73 Heading H3T A converter for A.C. voltage to D.C. voltage conversion comprises a differential amplifier W with its inverting input connected to an input terminal 1 via a first resistor R1 and a capacitor C and to the output terminal 2 of the converter via a second resistor R2, an output of the amplifier being connected to the anode of a first diode D1, cathode of a second diode D2 and to a first terminal of a voltage divider d, the anode of the second diode D2 being connected to the inverting input of the amplifier W and the cathode of the first diode D1 to the output terminal 2, while the second terminal of the voltage divider d is connected to grounds and the dividing tap to the non-inverting input of the amplifier W, thus providing positive feedback increasing the amplifier gain.
Patent GB-1167929-A (GB)
Title: An Alkaloid from Ocotea.
IPC: C07D221/20
Filed: 1967-10-06
Abstract: 1,167,929. Alkaloid from the genus " Ocotea ". SIPHAR S.A. 6 Oct., 1967 [25 Oct., 1966], No. 45759/67. Heading C2G. The invention comprises glaziovine, an alkaloid having the empirical formula C 18 H 19 N0 3 , addition salts thereof with an organic acid and its preparation from plants of the genus Ocotea, by crushing leaves and/or bark of suitable plant of said genus, extracting the alkaloidal principals from the crushed material by means of alcohol, treating the alcoholic extract with a dilute acid, decanting the acid solution containing the alkaloid from the viscous precipitate formed, making the acid extract alkaline, extracting the resultant product with chloroform and separating the glaziovine from this extract. Therapeutic compositions with anti-anxiety and antidepressant properties, in forms suitable for oral and parenteral application comprise a crystalline alkaloid prepared as described above either as the base or as an organic acid addition salt thereof with a carrier.
Patent GB-1434565-A (GB)
Title: Cabinets
IPC: B29C45/14
Filed: 1973-10-01
Abstract: 1434565 Injection moulding of cabinets PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 1 Oct 1973 [4 Oct 1972] 45770/73 Heading B5A A cabinet having walls made of synthetic plastics material covered with a decorative film is made by folding the film to form a sleeve (Fig. 2), arranging the film in a mould 6, 8 (Fig. 3) and injecting plastics material, at 7, against the inner side of the sleeve to bond therewith. The cabinet may be for a radio, TV or a loudspeaker. The margins 4 of the film are folded over at both ends of the sleeve, the corners being cut in such a way that the margins overlap in the corners. The film may be a laminated or non-laminated synthetic plastics material or a wood veneer covered with plastics material. The injected material may be polystyrene.
Patent GB-940754-A (GB)
Title: Haymaking machine
IPC: A01C3/08
Filed: 1961-12-21
Abstract: 940,754. Haymaking machines. MASCHINENFABRIK FAHR A.G. Dec. 21, 1961 [Jan. 5, 1961], No. 45776/61. Heading A1F. In a haymaking machine, of the type having driven rake-heads rotating about substantially vertical axes and having spring tines which extend generally parallel to the axis of rotation but at a distance from it, the spring tines are bent both forwardly and backwardly in the direction of rotation of the wheel so that the two arms thus formed each make an acute angle with the line joining the root and tip of the tine. The tines have coils 3 which encircle arms 1 forming the head, the upper and lower arms 2, 4 making acute angles α, #, with a vertical line through the arm 1 and the tine-tips. As shown in Fig. 2, the tines are also bent outwardly at an acute angle. The tines are advantageously double, united by their spring- coils 3.
Patent GB-1292350-A (GB)
Title: Observation of the interior of an enclosure
IPC: G02B23/24
Filed: 1970-09-28
Abstract: 1292350 Apparatus for observing the interior of an enclosure CENTRE NATIONAL DE RECHERCHES METALLURGIQUES 28 Sept 1970 [14 Aug 1970] 46111/70 Heading G2J A probe for observing the interior of furnaces comprises a protective envelope (not shown) housing a light receiving apparatus comprising a zoom objective 5, a variable stop 4 for controlling the amount of light transmitted to the zoom objective and a reflector 2 moveable along a guide 19 into a position in which light entering the probe along the axis thereof is passed to a camera 1 and into a position in which light entering the probe perpendicular to the axis thereof is reflected along the axis to the camera. Light from the furnace passes through aligned quartz windows which may be provided with wiper mechanisms in the envelope and light receiving apparatus. Compressed air or other gas which cleans the windows and cools the various components of the probe may be circulated between the envelope and light receiving apparatus.
Patent GB-1311237-A (GB)
Title: Apparatus for profiling wooden members
IPC: B24D9/00
Filed: 1971-10-04
Abstract: 1311237 Abrading H SCHONER [trading as WALTER SLEMPEL] 4 Oct 1971 [21 April 1971] 46134/71 Heading B3D Apparatus, e.g. for profiling furniture legs comprises at least two sanding medium carriers 9, 10 adjacent a workpath, means 1 for rotating and advancing along the workpath a member 14 to be profiled, means 26, 27 for reciprocating the carriers 9, 10 independently parallel to the axis of rotation of the member 14 and at different frequencies and/or amplitude, a sanding element 13 on each carrier 9, 10 and means for urging the elements 13 against the member 14. Two carriers 9, 10 may be pivotably, retractably mounted adjacent spindle head star discs 4, 5 of the advancing means 1, a group of members 14 being engaged between driven spindles 6 and counter centres 7 of the discs 4, 5. Free ends 13 of abrasive fabric strips 12 are urged against the members by resilient brushes 18, the reciprocation of the carriers 9, 10 leading to an even surface finish.
Patent GB-1311416-A (GB)
Title: Trousers
IPC: A41F9/02
Filed: 1971-10-05
Abstract: 1311416 Trouser waistbands GREIFFWERKE GUSTAV WINKLER KG 5 Oct 1971 [6 Nov 1970] 46183/71 Heading A3V A pair of trousers comprises a front waistband part 3 and a rear waistband part 2 which interengage by a pin of the front part 3 sliding in a slot 10 of the rear part 2, and elastic tension bands 5 are attached at each end as by seams 6 to one of the waistband parts. The pins are provided at their outer ends with rivets 9 and at their inner ends with buttons 8 which engage in buttonholes 4 provided in flaps 7 of the front part 3 which flaps coverlap the rear part 2. The slots 10 may be edged with plastics or metal members having smooth or notched surfaces to allow automatic or preset adjustment for a wearer's girth respectively. The pins may taper towards or away from their centres and can be grooved and have different cross-sections. In one embodiment the pins secure the rear ends of the bands 5. Pockets 11 are provided which are attached to the trousers along edges 12 defining openings 20 in the fabric. An adhesion band may be provided on the inside of the waistband parts to inhibit the trousers from slipping down and a belt may be provided externally or internally of the waistbands.
Patent GB-1457684-A (GB)
Title: Controlled burning squib arrangement
IPC: F42B3/04
Filed: 1974-10-25
Abstract: 1457684 Generating combustion products under pressure ICI UNITED STATES Inc 25 Oct 1974 [25 Oct 1973] 46251/74 Heading F1L Generation of combustion products under pressure is effected by deflagratable explosive material 20, ignited by the combustion products from a first stage, electrically ignited explosive material 16 and disposed in a cavity 22 in a first rigid chamber 8 communicating through passages 21 with a second expandable chamber 9, the cross-section of passages 21 being at least equal to that of cavity 22 so that no appreciable pressure differential exists between the first and second chamber. The second chamber may contain a piston 24, or be in the form of a bellows (27), Fig. 4, (not shown), or be formed with a flexible diaphragm end-wall (28), Fig. 5, (not shown). As shown, the cavity 22 is partially closed by a perforated retainer ring 21. The material 20 may be lead styphnate.
Patent GB-1106837-A (GB)
Title: Improvements in or relating to tower cranes
Inventor: PAUL MARRIE
IPC: B66C23/34
Filed: 1966-10-17
Abstract: 1,106,837. Self-erecting tower cranes. SOCIETE NOUVELLE D'EXPLOITATION DES ETABLISSEMENTS BOILOT - PETOLAT. 17 Oct., 1966 [9 Nov., 1965], No. 46253/66. Heading B8B. A tower crane comprises a lower component P1 pivoted on a base S, an upper component P2 pivoted to the lower component P1 and with a telescopic portion P<SP>1</SP>2, a jib F, parallel struts G pivotally connected at G0 to a structure rigidly attached to the base S, an auxiliary structure in the form of uprights V which are lowered to the horizontal while the crane is moved from site to site and first and second pulley systems formed respectively by two half-tackles M1 M<SP>1</SP>1 of a main tackle and an auxiliary tackle M2. A cable X is taken continuously round the two half-tackles M1, M<SP>1</SP>1 and over the auxiliary tackle M2 from a winch W and is secured at Y. The uprights V are automatically raised by the pull on the cable X at the commencement of erection (Fig. 2). The upper component P2 of the tower is then raised by a cross-piece T, moved by the tackle M2 (Fig. 3). When the tackle M2 has finished raising the upper component P2 (and the jib F), the pull of the cable X acts on the tackle M1/M<SP>1</SP>1 to raise the lower component P1 and simultaneously to complete the raising of the upper component P2 (with portion P<SP>1</SP>2) and the jib F. Once the crane is erected the uprights V are temporarily lowered on to the struts G, Fig. 4 (not shown).
Patent GB-1122933-A (GB)
Title: Improvements in or relating to communications receivers
IPC: H04B1/26
Filed: 1966-10-17
Abstract: 1,122,933. Receivers. L. R. KAHN. 17 Oct., 1966 [21 Oct., 1965], No. 46305/66. Heading H3Q. A receiver has separate demodulator circuits for use with signals with or without carrier respectively, and is automatically switched to include the correct demodulator according to the nature of the incoming signals. The output of the I.F. stages is applied at 2 to two auxiliary detectors in parallel, these giving D.C. outputs proportional to the peak and average values of the signals respectively. These outputs are compared (e.g. in a potentiometer 12) and a relay 20 is either operated or not operated, depending on which output is greater, to switch the I.F. signal via 24 to the appropriate demodulator 26 or 28. A suppressed carrier signal has a high peak-toaverage value and causes the relay to be operated, bringing the product demodulator 28 into circuit. On the other hand, a signal with carrier, whether double or single sideband, has a high average value and the relay will fall off to bring the normal demodulator 26 into circuit. The relay may perform other fimctions to adjust the receiver circuits (e.g. A.G.C.) to the type of signals being received, or to mute the A.F. stages to eliminate noise having a high peak-to-average value.
Patent GB-1410341-A (GB)
Title: Polymer dispersions and process for preparation of same
IPC: C08F299/02
Filed: 1972-10-06
Abstract: 1410341 Polymer dispersions DAI NIPPON TORYO KK 6 Oct 1972 [7 July 1972] 46327/72 Heading C3G A synthetic polymer dispersion comprises polymer particles dispersed in a non-polar organic liquid, wherein the polymer is the product of block- or graft-polymerization of (a) a modified resin which is an epoxy ester resin modified by an unsaturated fatty acid or by an oil containing an unsaturated fatty acid, an epoxy-modified alkyd resin modified by an unsaturated fatty acid or by an oil containing an unsaturated fatty acid, a urethane resin modified by an unsaturated fatty acid or by an oil containing an unsaturated fatty acid, a maleic resin modified by an unsaturated fatty acid or by an oil containing an unsaturated fatty acid, an alkyd resin modified by an unsaturated fatty acid or by an oil containing an unsaturated fatty acid, or a mixture thereof, and (b) at least one ethylenically unsaturated monomer; wherein the organic liquid is capable of dissolving the monomer(s) but incapable of dissolving the block- or graft-polymer and is an organic liquid having an aniline point below 60‹ C. and an aromatic hydrocarbon content of less than 12% by weight; wherein the block- or graft-polymer is stabilized in the dispersion by the modified resin portion thereof, which is stabilized by the organic liquid; and wherein the amount of modified resin present in the dispersion is from 20 to 90% by weight, based on the total solids content of the dispersion. Examples are given in which (i) a polyester resin produced from soybean oil, pentaerythritol, soybean oil fatty acid and phthalic anhydride is grafted in various solvents with acrylonitrile, methyl methacrylate and styrene, (ii) an epoxy resin modified with safflower oil fatty acid and then phthalic anhydride and pentaerythritol is grafted in a solvent with methyl methacrylate, ethyl acrylate and acrylonitrile; (iii) a soybean oil/pentaerythritol/tolylene diisocyanate urethane resin is grafted as in (i); (iv) linseed oil/maleic anhydride resin is grafted as in (ii) and (v) a mixture of soybean oil fatty acid-modified epoxy ester resin and a polyester resin as in (i) is grafted as in (i). Reference has been directed by the Comptroller to Specifications 1,358,725 and 1,002,493.
Patent GB-1040970-A (GB)
Title: Improvements in lifts
IPC: B66B9/16
Filed: 1963-11-27
Abstract: 1,040,970. Builders' hoists. F. V. MALMQVIST. Nov. 27, 1963 [Dec. 1, 1962], No. 46864/63. Heading B8H. In a builders' hoist comprising a cage movable along a mast 1, the mast is supported in a horizontal transport position by wheels 6 on a frame 4, pivoted at 7 to the mast and coupled to a winch drum 9 in the base of the mast by a cable 13. In the transport position the shaft 5 supporting the wheels 6 engages a projection 8 on the mast. To raise the mast to an upright position the winch drum 9 is rotated to pull the frame 4 to the full-line position, Fig. 4, in which a hole in the frame 4 engages a stay rod 16 around which a helical spring 17 is provided. The mast then is pushed into its upright position. The reverse procedure is used for lowering the mast, a braking device on the winch drum 9 being operated to allow the cable 13 to run out slowly, thereby controlling the movement of the frame 4 to the chain line transport position, Fig. 4.
Patent GB-1274255-A (GB)
Title: Improvements to the synthesis of 2-hydroxy-4-methylthio-butyronitrile
IPC: H01L21/00
Filed: 1969-09-23
Abstract: 1,274,255. 2-Hydroxy-4-methylthiobutyronitrile. UGILOR. 23 Sept., 1969 [24 Sept., 1968], No. 46589/69. Heading C2C. 2 - Hydroxy - 4 - methylthiobutyronitrile is prepared by introducing methyl mercaptan in an amount corresponding to an excess of from 5-50% of the stoichiometric quantity in relation to the cyanhydrin, into a reactive medium containing acrolein cyanhydrin and a basic agent such that 5 volumes of the medium diluted to 100 volumes with distilled water have a pH between 7 and 8, allowing the mixture to react and removing the excess mercaptan, e.g. by degassing, entraining in an inert gas, or recycling. Specified basic agents include alkali and alkaline earth metal hydroxides, also carbonates, cyanides, organic amines and quaternary ammonium hydroxides. The process may be operated continuously or intermittently at a temperature of 0-65‹ C. and if required under pressures up to 5 atmospheres. Impure cyanhydrin, a by-product of propylene ammoxidation to acrylonitrile, may be used as starting material.
Patent GB-1407230-A (GB)
Title: Mandrel assembly for skew-roll piercing mills
IPC: B21B25/00
Filed: 1972-10-11
Abstract: 1407230 Rolling mill mandrels MANNES-MANNMEER AG 11 Oct 1972 [26 Oct 1971] 46982/72 Heading B3M A mandrel for a skew-roll piercing mill includes a head 2 which is releasably coupled to a mandrel bar 1, the coupling including spring arms 4 whose enlarged ends 5 co-operate with a recess in the head. The arms are held in a tubular member 3 fixed to the bar 1. An apparatus (Fig. 2) is used for removing the head from the bar, the apparatus including two yokes 7, one fixed to a cylinder 9 and the other movable towards or away from the first. By moving the yokes apart from the position shown, the head is pushed off the springs. A head can also be pushed on the springs by engaging the free end of the head by a plate 8 and by moving the movable yoke 7 towards the plate when the yoke is co-operating with a groove in the member 3 (Fig. 4, not shown).
Patent GB-1480688-A (GB)
Title: Transportable screening and grading appliances
IPC: B07B1/00
Filed: 1975-11-14
Abstract: 1480688 Screening apparatus MACHINES & STRUCTURES Ltd 14 Nov 1975 [47138/75 Heading B2H Transportable screening and grading apparatus comprises a wheeled framework 1, a hopper 4 disposed to deliver material to be screened onto the lower end of an inclined main conveyor 5, an elevated screen arrangement 15 receiving material from the top of the conveyor, and a plurality of discharge chutes 7, 8, 9, 10 for the screened material, each discharging onto the lower end of a respective inclined auxiliary conveyor 11, 12, 13, 14, each auxiliary conveyor being pivotable at its lower end about vertical arms laterally spaced from the axis of the main conveyor, whereby it can be nested alongside the main conveyor for storage or transport, or swung out so that the graded material can be discharged into well separated heaps. In the Figs., each auxiliary conveyor is mounted on pivot 21 and supported by stay 22 on pivot 23. The two auxiliary conveyors on one side nest one above the other, the stay 22 of the lower conveyor being kinked as in Fig. 2 to permit storage or supports 25 without exerting on the conveyor a force which tends to pivot it. The apparatus includes a towing hitch 26 and feet or jacks 27. The screening apparatus includes three screens of successively finer mesh (not shown) in frame 15 resiliently supported on sub-frame 6 and suitably vibrated. Washing water is fed onto the material on the screens, and a dewatering screen is located in a frame 18 resiliently supported on a sub-frame 19, and vibrated by a linear vibrator having a line of action at an angle of 45‹ to the horizontal so that material passes up the screen. The angles of inclination of the screens are adjustable by variable length stays 17, 20.
Patent GB-1406956-A (GB)
Title: Production of electrically directly heatable hollow bodies of semiconductor material
IPC: C01B33/02
Filed: 1973-10-10
Abstract: 1406956 Hollow semi-conductor bodies SIEMENS AG 10 Oct 1973 [31 Oct 1972] 47206/73 Heading C1A A heatable hollow body of semi-conductor material for use as a diffusion vessel by decomposition of a gaseous semi-conductor compound in the gas phase on to the surface of a heated carrier body which is subsequently removed is produced by depositing at least two layers sequentially upon said surface, the layer which will be innermost consisting of highly pure semi-conductor material, and the outermost layer being of doped semi-conductor material. The semi-conductor materials may be deposited on the outer surface of a rod or tube or on the inner surface of a tube. In the former case the pure semi-conductor material is deposited first and the doped layer afterwards and in the latter it is the doped layer which is deposited first. Dopants which diffuse slowly should be used. The compound to be decomposed may be silicochloroform.
Patent GB-1363490-A (GB)
Title: Colour image pickup device
IPC: G02B27/46
Filed: 1971-10-13
Abstract: 1363490 Colour television SONY CORP 13 Oct 1971 [14 Oct 1970] 47672/71 Heading H4F A colour television camera incorporating a vertically striped (for horizontal scanning) colour filter through which an image of the object to be televised is projected on to the photosensitive layer of the camera is provided with an optical system to project more than one horizontally spaced image of the object on to the photosensitive layer. The colour filter has cyclically repeated colour stripes, the ratio of the total number of stripes in each set to the number of stripes in each set which are transparent to each primary colour being N and the width of each set of stripes being p, N images being projected on to the photosensitive layer, the images being spaced by a integral multiple of p/N. This is stated to eliminate moirÚ effects, p being several tens of microns so that misregistration in the reproduced picture is not noticeable. The spaced images may be produced by semireflecting mirrors HM 1 -HM 4 , Fig. 10, and reflecting mirrors FM 1  and FM 2 , mirrors FM 1  and FM 2  being at suitable angles to produce three spaced images (for a red, green, blue striped filter). Alternatively a trapezoidal crosssection prism (Fig. 11, not shown), or a prism such as shown in Fig. 12 may be used. Various forms of double refracting prisms or a quartz sheet may be used, two quartz sheets being provided for producing three or four images (Fig. 20, not shown). When using one of the double refracting means an optical rotator may be included before the double refractor to counteract the effect of light reflected from parts of the object being polarized. A filter using six colours (red, yellow, green, cyan, blue and magenta, N = 2) may be used. The camera tube used may be formed with striped electrodes adjacent the photosensitive surface (Fig. 2, not shown) so as to allow an index signal to be impressed on the camera output. The output may alternatively be derived by sampling the camera output.
Patent GB-1158138-A (GB)
Title: Level-Measuring System
Inventor: BECKER WINFRIED
IPC: G01F23/74
Filed: 1966-10-27
Abstract: 1,158,138. Measuring liquid level electrically. EUROPEAN ATOMIC ENERGY COMMUNITY (EURATOM). Oct. 27, 1966 [Nov. 2, 1965], No.48276/66. Heading G1N. [Also in Division G4] In a liquid level measuring system a vertical tube 11 inside which a float 6 is positioned is surrounded by a coil 9 tapped at m equidistant points 10, the taps being connected in pairs via a two-out-of-m switching unit to an oscillator 14. The float is made from a material which is either ferromagnetic or a good electrical conductor or alternatively carries a member made of such material so that as it moves inside the coil the frequency of oscillation of the oscillator varies. In the embodiment described relay contacts close under the control of a selector switch to sequentially connect pairs of taps to the oscillatorpreferably taps n and n+2 (n = 1 . . . m-2) are interconnected. The selector switch is rotated by a control unit 18 until the frequency detector 16 detects a change in frequency. The display in an indicator panel 19 represents which pair of tappings are spannedby the member 7 and the frequency of the oscillator at that time may also be displayed to give a fine indication of the position of the member 7 relative to the tappings.