baber/WOPTO huggingface dataset:
Patent GB-1495517-A (GB)
Title: Servo system for an x-ray apparatus
IPC: A61B6/04
Filed: 1974-12-10
Abstract: 1495517 Automatic control systems PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 10 Dec 1974 [13 Dec 1973] 53333/74 Headings G3N and G3R [Also in Division B8] In a speed or acceleration control system for X-ray apparatus, in which part of the apparatus is driven by an electric motor, a speed or acceleration desired value for the system is derived from a measurement of the manual force exerted on the part of the apparatus, from the actual weight of the part and from the measured motor acceleration. In the embodiment, X-ray apparatus 1 is driven by an electric motor 6. The torque on the motor output shaft, or (as shown) the forces in the drive 3 of the apparatus, is measured by a transducer 11 e.g. a strain gauge or quartz crystal. Amplifier 14 receives the output Sp of transducer 11, which depends upon the weight of the apparatus 1 and the force P H  manually exerted on the apparatus e.g. to lift it. Amplifier 14 also receives a signal G dependent upon the weight of the apparatus and a feedback signal S W  which varies with the acceleration of the motor, as measured by differentiating (at 16) the output of motor driven tachometer 7. The resultant signal S u  from amplifier 14 forms a desired motor acceleration signal and is compared at 17 with the actual acceleration from differentiator 16, to control the motor 6 e.g. using armature current control for a D.C. motor. In an alternative, comparator 17 acts as a motor speed controller; differentiator 16 is omitted and the signals Sp and G are integrated after passing through amplifier 14. To overcome friction, upon starting, the signal G may be initially increased. In all embodiments the output force of motor 6 or its acceleration are maintained proportional to the force P H  exerted on the apparatus, provided this force is between pre-set limits.
Patent GB-535839-A (GB)
Abstract: 535,839. Heating air. TANGYES, Ltd., and TANGYE, C. G. Dec. 20, 1939, No. 32577. [Class 64 (i)] In a stove having superimposed sections a with transverse air passages c, the passages are connected together by pipe bends or hollow covers h to form a single zig-zag continuous air passage through the stove. A fan k and motor m are mounted on a bell-mouthed air inlet j at the open end of the lowermost transverse air passage c. A discharge fitting n is mounted over the outlet end of the uppermost transverse air passage. Baffles e compel the hot gases from the furnace b to take a sinuous course through the sections.
Patent GB-1180776-A (GB)
Title: Improvements in or relating to telescopic mast.
IPC: B21C37/15
Filed: 1967-11-24
Abstract: 1,180,776. Telescopic posts. VAGBELYSNING AB. 24 Nov., 1967 [28 Nov., 1966], No. 53672/67. Heading E1B. A telescopic post for antennae or lighting fittings comprises three aluminium alloy or synthetic plastics telescopic tubes 1-3, tubes 2 and 3 being provided at their corners with outwardly projecting flanges 4, the outer portions 5 of which slide in guides 6 in tubes 1 and 2 respectively. When the tubes are metal the outer portions 5 are synthetic plastics. Tubes 1-3 may be sectional, the sections being united by sleeves 8-10 respectively. In other embodiments the tubes are cylindrical, and the guides 6 may not be provided or are formed as grooves in the cylindrical surfaces. The outer tube may have flanges. The spaces between the flanges accommodate cables 12, 13 for raising the tubes.
Patent GB-1490079-A (GB)
Title: Process for the purification of peptides of the calcitonin type
IPC: C07K14/575
Filed: 1974-12-12
Abstract: 1490079 Purification of calcitonin peptides CIBA-GEIGY AG 12 Dec 1974 [14 Dec 1973] 53742/74 Heading C3H Synthetic calcitonins (calcitonin M and its desamino<SP>1</SP> and N<SP>2</SP>-acyl derivatives); analogues (one or more of amino acids replaced by one or more different amino acids) of salmon or porcine calcitonin of isoelectric point 5-10 are purified by precipitation, from an aqueous solution of a salt of the calcitonin, of an inner salt (i.e. free peptide) of the calcitonin with acids or bases by adjustment of the pH to the isoelectric range. Preferred salts are the hydrochloride, acetate or trifluoroacetate, and the preferred base is ammonia. The pH may be adjusted utilizing an ion-exchange resin, from which the peptide is separated by conversion to a water-soluble salt. In the examples, calcitonin M (acetate or trihydrochloride); Asn<SP>26</SP>, Thr<SP>27</SP>-calcitonin M (trihydrochloride): Thr<SP>27</SP>-calcitonin M (acetate); and Leu<SP>12</SP>-Asn<SP>26</SP>-Thr<SP>27</SP>-calcitonin M (acetate) are obtained.
Patent GB-1365139-A (GB)
Title: Glow discharge tubes for atomic light absorption analysis
IPC: H01J17/06
Filed: 1971-11-23
Abstract: 1365139 Metal-vapour lamps HITACHI Ltd 23 Nov 1971 [24 Nov 1970] 54405/71 Heading H1D The hollow cathode of a glow discharge spectral analysis lamp is formed by compressing powder of the desired metal or metals, without raising the temperature sufficiently to melt or sinter the powder, whereby a high density of crystal dislocations is retained in the powder material, enhancing the sputtering rate and hence the spectral intensity emitted. Metals referred to include Cu, Fe, Ni, Cr, Au, Ag, Pd, Zn, Pt, Ta, Ti, Mn, B, Si, Bi, Sb, Pb, Al, Co, and Mo, and mixtures, by weight, of from three to five constituents chosen from the above list are given, such that the spectral lines of all constituents are roughly of the same intensity, together with details of preferred particle size, pressure, and initial low temperature reducing treatment in hydrogen. When the cathode powder is of a hard metal or metals, a soft metal-eg. copper or silver-is preferably included to act as a binder. As shown in Fig. 2b, the powder may form a lining for a copper cylinder 14 having a nickel end-piece 15 shaped to grip the end of the lining, and weldable to the cathode lead 9. In an alternative embodiment (Fig. 2c, not shown) the cylinder 14 is internally grooved to increase the adherence of the lining. As shown in Fig. 1, the cathode 8 is mounted opposite a window 2 and an anode 3 which is supported by mica insulators 4 and 5 and the leads for which are fed through the capillary tubes 7.
Patent GB-1457452-A (GB)
Title: Television signals
IPC: H04N21/2383
Filed: 1973-11-23
Abstract: 1457452 Television BRITISH BROADCASTING CORP 25 Nov 1974 [23 Nov 1973] 54493/73 Heading H4F A television signal in digital form is modified to include an error protection (i.e. parity) bit for each digital word (e.g. for each eight-bit word representing a picture sample), and selected bits (e.g. the parity bits or the least significant bit of each word) are inserted into at least some of the blanking intervals in the signal (e.g. into the horizontal blanking intervals). In this way the parity bits are added to the television signal without increasing the gross bit rate. Preferably the line sync. pulse and colour burst in the blanking intervals are removed before the selected bits are inserted, although the selected bits may be inserted at the times marked P in Fig. 2, i.e. during the stationary levels of the line blanking period. The bits of the television signal are delayed in line store 12 by approximately one line period relative to the error protection (parity) bits associated with that line before being applied to a transmission or processing channel 22, the 704 parity bits for the 704 eight-bit words being formed into 88 eight-bit words in store 13. Each parity bit is formed in generator 11 by the resultant of adding modulo-2 all or at least the more significant of the bits of the associated eight-bit word. The line store 12 may be situated at the receiver between switch 15 and error protection check circuit 18. If transmission is as in Fig. 2 then a D-A converter 20 may be connected to feed a colour decoder and monitor 21.
Patent GB-1209808-A (GB)
Title: Improvements in or relating to electromechanical band-pass filters
Inventor: WERNER JOHN FRANCIS
IPC: H03H9/58
Filed: 1968-11-19
Abstract: 1,209,808. Electromechanical filters. GENERAL ELECTRIC and ENGLISH ELECTRIC COMPANIES Ltd. 30 Oct., 1969 [19 Nov.; 1968], No. 54791/68. Heading H3U. A band-pass filter in which unwanted responses in the stop band are highly attenuated comprises two quartz slabs 1, 2 each having three resonators, vibrating in thickness shear mode, formed by pairs of electrodes 3 . . . 5 and 6 . . . 8, respectively, deposited on opposite faces of the slabs. The slabs 1, 2 have different thicknesses so as to have different resonant frequencies; however, the fundamental resonant frequency of all six resonators is the same since different plateback values are chosen for the two slabs, these different values being obtained by giving different thicknesses to the electrodes of the two slabs. " Plateback " is the reduction of the resonant frequency of the slab due to the electrode masses. The resonators of each slab are mechanically connected in series by the slab material situated between the three resonators, the two groups of three resonators being electrically connected in series. The slabs 1, 2 are mounted on insulating support frames 10, 11 separated by a beryllium-copper screen 12. Copper strips 13 on the frames 10, 11 are connected through strips 9 to the respective electrodes. Thus, one electrode of pair 3 is connected to input lead 14, the other electrode of this pair being connected via a tab 15 to the earthed screen 12; both electrodes of pair 4 are connected via tabs 16, 17 to the screen 12; one electrode of pair 5 is connected via tab 18 to screen 12, the other electrode of this pair being connected via tab 19 to one end of a capacitor 20 the other end of which is connected to a lug 21 of the screen. Similarly, one electrode of pair 6 is connected via a tab 22 to one end of the capacitor 20, the other electrode of this pair being connected via a tab (not shown) to the screen 12; both electrodes of pair 7 are connected to the screen; one electrode of pair 8 is connected to the screen and the other connected to output lead 23. The screen 12 is attached to a base 24 having connection pins 25, 26, the whole unit being enclosed in a can (not shown).
Patent GB-1328895-A (GB)
Title: Optical system of a binocular microscope
Inventor: ABE K
IPC: G02B21/20
Filed: 1971-11-26
Abstract: 1328895 Binocular microscopes KONAN CAMERA LABORATORY CO Ltd 26 Nov 1971 [28 Nov 1970] 55127/71 Heading G2J In a binocular microscope in which the light paths, each defined by an ocular 3, a vision field limiting means 4, a deflecting and an erecting prism 2 and an objective 1, are arranged at an angle to one another such that the two paths intersect on an object to be observed and comprising two auxiliary, objectives 11 disposed one in each light path adjacent the objectives 1 on a side remote from the ocular and arranged eccentrically therefrom, the-means 4 each comprising a plate having an aperture arranged eccentrically of the light path. The aperture means 4 are movable towards each other to a position wherein their centres coincide. The auxiliary objectives 11 are generally circular but have a cut away portion, the cut portions being aligned in parallel relationship.
Patent GB-1113669-A (GB)
Title: A tool for machines for contour machining of shaped surfaces
Inventor: BEILIN SAMSON YAKOVLEVICH
IPC: B23D1/00
Filed: 1965-12-31
Abstract: 1,113,669. Making planing tools for shaping graphite &c. EXPERIMENTALNY NAUCHNO - ISSLEDOVATELSKY INSTITUT METALLOREZHUSCHIKN STANKOV. 31 Dec., 1965, No. 55359/65. Headings B3A and B3L. [Also in Division B5] A machine for cutting contoured surfaces of graphite, wood &c., comprises a set of cutters C oscillated in a circular path at right-angles to the direction of feed. The distance between the cutters C is less than the amplitude of the oscillations. The cutters are inserted, or integral with, the body A, being shaped or formed respectively by electro-erosion.
Patent GB-1308485-A (GB)
Title: Force pulse shaping member for percussion tool
IPC: B25D17/08
Filed: 1970-11-20
Abstract: 1308485 Percussion tools GARDNERDENVER CO 20 Nov 1970 [18 May 1970] 55402/70 Heading B4C  A percussion tool comprises a reciprocable hammer element 16, and force transmitting means, including a bit portion operable to transmit percussive blows from the element 16 to a load. The force transmitting means includes an elastic, e.g. alloy steel or titanium alloy, member 36 operable to deliver force pulses from the hammer element to the bit portion, and comprising a shank portion 50 having a stiffness selected in accordance with the effective stiffness of the load. The tool includes receiving means for receiving one end of the shank portion 50, which is removably insertable in the receiving means. The tool also includes retaining means for removably retaining the shank portion in the receiving means, and the shank portion includes means engageable with the retaining means. In one embodiment, the hammer element 16 is reciprocated by compressed air fed via a valve 22 to chambers 18, 20 alternately in a tool casing 12 and engages a surface 46 of the member 36. A motor means 24 drives a shaft 28 and a pinion 20 which engages gear means 32 on a chuck 26 rotatably mounted in the forward part 42 of the tool casing, The member 36 is mounted in the chuck to be movable axially but not rotatively relative thereto, and is is releasably retained in the tool casing by a retainer 44 which engages a shoulder 54 thereon. The member 36 has a passage 56 for cleaning fluid. At its lower end the member 36 may be threaded to engage the upper member 72 of a drill string carrying a bit at its lower end. Alternatively the member 36 is welded to a drill rod having a releasable bit at its lower end. The drill casing 12 may be slidably mounted on a support carried by an adjustable arm mounted on a tracked vehicle.
Patent GB-1073118-A (GB)
Title: Catalytic gas reactions
IPC: C07C29/152
Filed: 1965-12-31
Abstract: 1,073,118. Catalylic gas reactions. UNION RHEINISCHE BRAUNKOHLEN KRAFTSTOFF A.G. Dec. 31, 1965 [Jan. 4, 1965], No. 55419/65. Heading B1F. Reactive gases are introduced over the whole length of a catalyst bed fixed between the perforated walls 2 and 3 extending parallel to the axis of a cylindrical reactor tube 1, the walls 2 and 3 defining free spaces 4 and 6 between themselves and the tube wall such that the gases are introduced into space 4, pass perpendicularly to the tube axis through the catalyst bed, and are removed from space 6. The drop of pressure across the catalyst bed is low, and in a recycle-process the compressing of the gases for recycling is correspondingly low. The bed of catalyst may be divided by further perforated walls parallel to walls 2 and 3 into two or more parallel layers (Fig. 2 not shown). Reactive gas may be also directly introduced between these layers through perforated tubes, or alternatively cooling or heating means may be arranged between the layers.
Patent GB-1339634-A (GB)
Title: Respirators
IPC: A62B7/08
Filed: 1971-11-30
Abstract: 1339634 Potassium superoxide; oxygen L'AIR LIQUIDE SOC ANON POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE 30 Nov 1971 [2 Dec 1970] 55639/71 Heading C1A A cartridge for the regeneration of O 2  from expired gases in an individual closed circuit respirator contains a plurality of KO 2  bodies, having at least three curved surfaces and at least one of which is convex, formed by pelleting KO 2  powder. The pellets may have the shape shown in Figs. 1-5, a diameter of 7-10 mm., a thickness of 4-6 mm., and have been compressed at a pressure of 80-120 kg/cm<SP>2</SP> from a KO 2  powder having an app. density of 0À35-0À45 g/cc. The pellets may contain 3 CuO.CuCl 2 .3H 2 O as a catalyst. The cartridge preferably has the form shown in Fig. 6 in which a charge 1 of KO 2  pellets is lodged in a cylinder 2 of copper and/or stainless steel, having two end faces 3 provided with thin copper foils 3A which are perforated in operation. The KO 2  charge is divided into two portions by metal gauze 6 and supported at the gas outlet end by a filter 11 of glass fibres sandwiched between two copper plated metal dome shaped gauzes 12 and 13. The charge is also maintained under a limited pressure by a spring 7 bearing on a metal gauze 10.
Patent GB-1130768-A (GB)
Title: Improvements in or relating to the cooling of hot sponge iron
IPC: C21B13/00
Filed: 1966-12-13
Abstract: 1,130,768. Cooling sponge iron; cooling furnace charges. HUTTENWERK OBERHAUSEN A.G. 13 Dec., 1966 [25 Jan., 1966], No. 55661/66. Headings F4B and F4U. Hot sponge iron is cooled in a sealable container provided with internal tubes by at least partial submersion in water. One or more rising tubes 6 each terminate at their upper ends in one or more connecting tubes 7, allowing a convective flow of water through the interior of the container 2, the base of the container being maintained by feet 9 above the bottom of the water tank. The rising tube 6 has a diameter between 5% and 20% of the container 2, and the combined crosssection of the tubes 7 approximates to that of the tube 6.
Patent GB-1402437-A (GB)
Title: Refrigerant compressor with an oil separator
IPC: F04B39/04
Filed: 1972-12-05
Abstract: 1402437 Separating oil from gas compressor discharge; rotary positive-displacement machines BORG-WARNER CORP 5 Dec 1972 [18 Feb 1972] 56131/72 Headings F1F and F1N A rotary compressor having end-plates 14, 16 has a shell 84 fitted to the exterior of the plate 16, the shell including a hollow baffle 74 into which discharge gas is delivered by a tube 62 whereby at least some of the oil entrained in the gas separates and drains to a sump 44 through perforations (80, 82) in the walls 68, 75 of the baffle. The gas leaving the baffle 74 passes through an oil screen assembly 64 to an outlet 90. The assembly is in the form of three louvred plates 70a, 70b, 70a, the louvres of the central plate 70b being perpendicular to the outer plates 70a. A perforated baffle plate 92 extends between the screen assembly 64 and the end-plate 16 to inhibit oil in the sump 44 from being re-entrained in the gas flowing to the outlet 90. The compressor is of the kind having an eccentric rotor 21 rotatable in a cylindrical chamber 12 and having slots 22 slidably receiving vanes 23. The bottoms of the slots are fed with oil from the sump 44 by a pump which draws through passages 45, 46.
Patent GB-1247769-A (GB)
Title: Novel vinyl chloride copolymers, and processes for their preparation
IPC: C08F255/02
Filed: 1969-11-20
Abstract: 1,247,769. Graft polymers. NIPPON POLYCHEMICALS CO. Ltd. 20 Nov., 1969 [21 Nov., 1968], No. 56757/69. Heading C3G. Vinyl chloride is graft polymerized on to a chlorinated copolymer of ethylene with vinyl acetate or an acrylate ester, e.g. ethyl acrylate. Free radical initiation is used in aqueous suspension or in bulk in a rotating cylinder containing steel balls. The products may be blended with PVC.
Patent GB-1364125-A (GB)
Title: Prostalandin esters
IPC: C07J9/00
Filed: 1971-12-07
Abstract: 1364125 Prostaglandin esters ONO PHARMACEUTICAL CO Ltd 7 Dec 1971 [7 Dec 1970] 56862/71 Headings C2C and C2U The invention comprises a process for producing prostaglandin esters by converting prostaglandins into tertiary amine salts, reacting said salts with alkanesulphonyl halides or benzenesulphonyl halides of the formula RSO 2 X wherein R is C 1 -C 6  alkyl or a phenyl group optionally substituted by at least one C 1 -C 6  alkyl group, and X is halogen, to form mixed acid anhydrides of carboxylic acids and sulphonic acids, and then reacting the said anhydrides with alcohols or 1,5-dihydroxynaphthalene, and the novel esters prostaglandin A 2  2-diethylaminoethyl ester, prostaglandin A 2  2-dimethylaminoethyl ester, prostaglandin A 2  4-hydroxybutyl ester, prostaglandin A 2  6- hydroxyhexyl ester, prostaglandin A 2  8-hydroxyoctyl ester and prostaglandin E 1  cholesterol ester.
Patent GB-1362066-A (GB)
Title: Dihydroindole and indolenine dyestuffs
IPC: C09B23/06
Filed: 1971-12-09
Abstract: 1362066 Tetrahydro-oxazolo-[3,2a]-indoles BAYER AG 9 Dec 1971 [9 Dec 1970] 57274/71 Heading C2C [Also in Division C4] 9a-Methyl-2,3,9,9a-tetrahydro-oxazolo-[3,2a]- indoles of formula (in which R 1  and R 2  are each optionally substituted 1-4 C alkyl, or together complete a saturated 5- or 6-membered ring; R 3  is H, carboxyl, one or more non-ionic substituents or completes a fused 5- or 6-membered ring which optionally possesses one or more non-ionic substituents; R 4  and R 5  are each H or non-ionic substituents) are prepared by reacting compounds of formulae The examples describe the preparation of compounds and mixtures of compounds in which R 1  and R 2  are CH 3 ; R 3  is H, 5-methyl-7-cyclohexyl, 7-methoxy, 7-phthalimidomethyl or 7-CO 2 H; R 4  and R 5  are both H, or one of R 4  and R 5  is H and the other is CH 3 , -CH 2 Cl, C 6 H 5 , phenoxymethyl, hexyloxymethyl or allyloxymethyl.
Patent GB-1443989-A (GB)
Title: Thermal dissociation of organic substances containingchlorine with
IPC: F23G7/00
Filed: 1973-12-11
Abstract: 1443989 Production of HCl BASF AG 11 Dec 1973 [16 Dec 1972] 57356/73 Heading C1A Hydrogen chloride is prepared by introducing, in the absence of oxygen, organic residues containing chlorine through line 3 into a molten salt or salt mixture contained in the reaction zone bounded by the partition 2 and wall 12, the gaseous hydrogen chloride formed escaping through opening 5 and the residual dissociation products dispersed in the melt being burnt off by introducing oxygen through opening 7 into the interspace between partition 2 and wall 1, the resulting gaseous products escaping through opening 8. Circulation of the melt through openings 6 and 9, brought about by gas lift, enables the process to be run continuously.
Patent GB-1407999-A (GB)
Title: Compositions containing ferromagnetic particles and non-ferro magnetic aluminium particles in an elastic material
IPC: H03K17/00
Filed: 1972-12-12
Abstract: 1407999 Polymer compositions E I DU PONT DE NEMOURS & CO 12 Dec 1972 57360/72 Headings C3P C3R and C3Q [Also in Divisions H3-H5] Polymer compositions comprise aluminium particles, ferromagnetic particles and an elastic binder, the ratio by weight of ferromagnetic to aluminium particles being in the range of 1 : 5 to 2 : 1 and the combined weights of the aluminium particles and the ferromagnetic particles being 40 to 85% of the total weight of the particles and binder. The ferromagnetic particles may be iron, cobalt or nickel powder. Suitable elastic binders are natural rubber, synthetic polisoprene rubber, elastomeric chloroprene polymers, fluoro-olefin elastomers, butadiene-styrene rubber, an ethylene-propylene non-conjugated diene rubber, a silicone rubber or a polyurethane rubber. The elastic binder may be used in solution in a solvent. The composition may be prepared in sheet form and used to form an electrical switching device which is capable of being switched between two resistance states (see Divisions H3-H5).
Patent GB-1431501-A (GB)
Title: Preparation of phloroglucinol and ethers thereof
IPC: C07C41/16
Filed: 1973-12-11
Abstract: 1431501 Preparation of phloroglucinol and ethers thereof OCE-ANDENO BV 4 Dec 1974 [11 Dec 1973 (2)] 57427/73 and 57428/73 Heading C2C  Compounds of formula wherein all the R groups are the same and each represents a hydrogen atom or a (C 1-2 ) alkyl group, are obtained by reacting a compound of formula (wherein all the Hal groups are the same and each represents a halogen atom) with an alcoholate of formula R<SP>1</SP>OMe (wherein R<SP>1</SP> represents a C 1-2  alkyl and Me represents an alkali metal atom) in the presence of a copper salt and an aprotic solvent to form a compound of Formula I wherein each R group represents a (C 1-2 ) alkyl group, if desired dealkylating the product to obtain a compound of Formula I wherein the R group represents a hydrogen atom.