baber/WOPTO huggingface dataset:
Patent GB-914752-A (GB)
Title: Improved device for automatically measuring and controlling movements of machine parts
IPC: G05B19/35
Filed: 1959-05-27
Abstract: 914,752. Electric measuring systems. VYZKUMNY USTAV OBRABECICH STROJU A OBRABENI. May 27, 1959 [May 29, 1958], No. 18124/59. Class 40 (1). [Also in Group XXII] Apparatus for measuring the displacement of a workpiece along an axis in coarse and fine components comprises a revolution counterdriven by the lead-screw, and a vernier gauge consisting of a balanced E-type transformer for measuring the fractional displacement. As shown (Fig. 2) a work-table 1 is driven by a motor 2 via a lead-screw 3, geared to a selsyn unit 11, 14 driving selsyn units 15, 16, 17 coupled to each other through 10: 1 gear ratios, so that one revolution of selsyn 15 is equal to one metre of travel of work-table 1, and one revolution of selsyn 17 is equal to one centimetre of travel. A fixed E-type transformer 6 co-operates with the threads of a measuring- screw 4 carried by the work-table 1, so that any asymmetry between the legs of the E core and the threads of screw 4 produces an error signal which is amplified at 7 and energizes a servomotor 5 to rotate screw 4 until symmetry is restored. The total displacement of the worktable is therefore given by the algebraic sum of the readings of selsyns 15-17 driven with the lead-screw 3, and selsyns 19, 20 driven with the measuring screw 4, which are also coupled by a 10: 1 gearing so that one revolution of selsyn 20 is equal to 0.1 mm. of travel. The stators of selsyns 15, 16, 17, 19 and 20 are preadjusted to a required displacement value. The functioning of the apparatus is initially controlled by the output from selsyn 15, which selects the highest gear ratio in gear-box 9 and drives lead-screw 3 at a high speed until the error signal drops to a predetermined value at which the control is transferred to the output from selsyn 16, and the gear ratio in gear-box 9 is changed to a lower value. This is repeated at the same low error signal value in sequence to the output from selsyns 17, 19 and 20. Errors in the spacing between the teeth of measuring screw 4 are automatically corrected by a cam profile 21 which produces rotation of the stator of selsyn 8 coupling screw 4 to the measuring selsyns 19, 20. In a modification (Fig. 6, not shown) motor 2 drives the measuring screw 4 as well as the lead-screw 3, and servomotor 5 acts on a differential between motor 2 and the measuring screw.
Patent GB-112128-A (GB)
Title: Improvements in Gas Producers.
Inventor: NELSON LIONEL
IPC: C10J3/00
Filed: 1917-12-08
Abstract: 112,128. Nelson, L. Dec. 8, 1916, [Convention date]. Ashpits; grates.-Gas-producers of the kind described in Specifications 19639/09, 26068/09, and 16088/15 are constructed so as to be capable of producing gas from wood, wood shavings, bituminous coal, lignite, peat, &c. The generator is preferably oval or oblong in cross-section. As applied to a marine gas producer, the shell 1 is adapted to contain a couple of scrubbers 25; the water from the scrubbers drains by a pipe 37 into the ash-pit seal 38 which is fitted with an overflow pipe 40, and a seal 41 for use in rough weather. If the generator becomes choked with clinkers &c., the grate may be reciprocated on its supporting lugs 29, by means of a lever the pivot of which passes through glands in the generator shell, and is connected by means of an upturned-end to a hole in the grate. This grate is guided by pins on the lugs 29 engaging slots in the grate.
Patent GB-191092-A (GB)
Title: Improvements in or relating to liquid hydrocarbon burners of the injection type
IPC: F23D11/10
Filed: 1921-07-06
Abstract: 191,092. Grote, L. July 6, 1921. Air and steam pressure sprayers.-A liquidfuel burner comprises an internally tapered barrel having a circular enlargement at its rear end, an air or/and steam injector nozzle arranged ccaxially with and in the rear end of the barrel, means for admitting fuel direct to the barrel enlargement, and means for directing air or/and steam in sharply converging streams on to the main stream of fuel mixture issuing from the barrel. In the form shown in Fig. 2, fuel admitted through an aperture 23 into a circular enlargement or chamber 24 in the tapered bore of the barrel 20 is mixed with air or/and steam supplied through an injector nozzle 26 and with air drawn through tapered apertures 25 in the chamber 24. The fuel mixture, with additional air admitted through inclined and tapered apertures 28, on issuing from the barrel is further mixed with air or/and steam supplied through a sleeve 21 on the barrel. The outlet of the sleeve 21 may consist of a ring of inclined apertures or an inwarly inclined annular orifice 32. The sleeve 21 is provided with a projecting extension 29, by which the burner may be attached to its support. In the form shown in Fig. 11, the injector comprises an outer casing 33 screwing into the barrel enlargement 34 and having tapered fuel apertures 39a, 40a and a flanged air or/and steam nozzle 36 removably fitted in the casing 33. The fuel mixture issuing from the barrel 35 is further mixed with a converging stream of air or/and steam supplied through a sleeve 43 on the barrel and with air drawn through a sleeve 45, which screws on an apertured flange on the sleeve 43.
Patent GB-1356295-A (GB)
Title: Activated sludge process and system
IPC: C02F3/26
Filed: 1971-06-01
Abstract: 1356295 Activated sludge process AIR PRODUCTS & CHEMICALS Inc 1 June 1971 [1 June 1970] 18301/71 Heading C1C In an activated sludge process liquor in enclosed aeration chamber 10 maintained at superatmospheric pressure, is formed by device 42 into droplets 41 in the upper region 40 where they come into contact with an oxygen-rich gas supplied under pressure from source 46 through inlet 48. The pressure in the region 40 may be maintained at up to 10 atmos. Gas may be vented from region 40 and recycled through absorber 52 which removes undesirable gases, e.g. CO 2  generated in the chamber 10. The liquor is passed from primary settling tank 12 to aeration chamber 10 and then to secondary settling tank 14.
Patent GB-418923-A (GB)
Title: Improved apparatus for ascertaining and recording the depth of water in a river, and for like purposes
IPC: G01C13/00
Filed: 1933-06-28
Abstract: 418,923. Pipe joints. HILLMAN, E. C., River Trent Catchment Board, Vernon House, Friar Lane, Nottingham. June 28, 1933, No. 18382. [Class 99 (i).] A pipe 13 is protected by an armoured rubber hose 42 secured to the member 23 by the contraction of a bevelled and longitudinally-split ring 43 which is contracted by the pressure of a sleeve 44 on screwing down a cap 45. Crushing of the tube 13 is prevented by a short metal tube 47.
Patent GB-1186545-A (GB)
Title: Decorative Sheets or Other Articles of Plastics Materials
Inventor: CLARKE KENNETH
IPC: B24C1/06
Filed: 1967-04-21
Abstract: 1,186,545. Blasting. IMPERIAL CHEMICAL INDUSTRIES Ltd. 27 March, 1968 [21 April, 1967], No. 18492/67. Heading B3D. [Also in Division B6] A decorative matt surface is provided on a sheet or other article of transparent or opaque plastics material by abrasively bombarding the surface of the sheet or other article with hard solid particles carried in a liquid medium that is inert to said particles and to said plastics material, the surface of said sheet or other article having been masked so that only the unmasked areas are subjected to the abrasive action of said particles. The particles may be sand, aluminium oxide, glass beads, steel shot or silicon carbide, their size lying in the range 10-500 Ám. The liquid medium is preferably water. A slurry of the particles and liquid medium is pumped to a nozzle from which it is further accelerated by compressed air; alternatively, the slurry is pumped to the inlet eye of an impeller revolving at up to 3500 r.p.m. The plastics material may be polymethyl methacrylate, polystyrene or rigid polyvinyl chloride. Masking may be effected by pressure-sensitive tapes, adhesive films, paper stencils or lacquers. A pattern may be produced on one surface of a sheet or other article and the pattern then produced on the other surface of the sheet or other article relatively displaced laterally to the first pattern.
Patent GB-1173647-A (GB)
Title: Restrained Gyroscope Arrangements.
IPC: G01C19/38
Filed: 1967-04-21
Abstract: 1,173,647. Gyroscopic apparatus. FLUGGERATEWERK BODENSEE G.m.b.H. April 21, 1967 [May 3, 1966], No. 18498/67. Heading G1C. A restrained gyroscope arrangement is similar to that described in Specification 895,064 except that the cylinders 5, 5<SP>1</SP> are each divided into two chambers by partition walls 6, 6<SP>1</SP>. The chambers are pneumatically connected via damping restrictor openings 9, 9<SP>1</SP> and restrictor openings 10, 10<SP>1</SP> are formed in the chambers 8, 8<SP>1</SP>. In modifications, the restrictor openings are replaced by discs of sinter material and a double acting piston cooperates with a single cylinder.
Patent GB-1317674-A (GB)
Title: Pressure responsive instrument capsule mechanism and method  of manufacture
IPC: G01L7/10
Filed: 1971-06-02
Abstract: 1317674 Making pressure responsive capsules SPRINGFIELD INSTRUMENT CO Inc 2 June 1971 [27 July 1970] 18522/71 Heading B3A [Also in Division G1] A capsule for a pressure-responsive instrument such as an aneroid barometer is made by placing two capsule members 10, 18 in the form of corrigated sheet metal stampings in contact with one another at their peripheries, one member 10 having an upstanding flange 12 and a motion-transmitting projection 16 and the other member 18 a radial flange 20, locating a threaded calibration stud 24 in a hole in the member 18, applying a sealing adhesive 40, e.g. an epoxy resin, to the peripheries of the members 10, 18 and to the joint between a flange 30 on the stud and the member 18, thus covering a vacuum opening 34, and placing the assembly (10, 18, 24) in an oven (42) and curing the adhesive while or after the capsule is evacuated, air bubbling out of the capsule through the adhesive until after approximately 15-20 minutes heating at 120‹C the adhesive is cured. Alternatively the oven heat may be switched on automatically when the capsule has been pumped out to a predetermined pressure.
Patent GB-359512-A (GB)
Title: Improvements in and relating to the production of fertilisers
IPC: B01J2/30
Filed: 1930-06-17
Abstract: The caking of fertilizers is prevented by the incorporation therein of hygroscopic materials, e.g. calcium nitrate and calcium chloride, in quantities adapted to produce a constantly damp product. Reference has been directed by the Comptroller to Specifications 308,717 and 316,664, [both in Class 111, Sewage, &c.].
Patent GB-106062-A (GB)
Title: Improvements in Flexible Couplings for Transmission of Power.
Inventor: SYKES HENRY
IPC: F16D3/68
Filed: 1916-12-29
Abstract: 106,062. Sykes, H. Dec. 29, 1916. Shaft couplings.-In a flexible coupling, applicable to electromotors, motor-cars, and shafting, radial projections c<1> on one member c<2> engage loosely in correspondingly shaped internal recesses or pockets b in the other member. The sides of the projections c' are faced with blocks of rubber or other resilient material d which bear against the sides of the internally projecting portions b<1> of the pockets b. The pockets may be formed in a ring a bolted to a disk a<1>, or projections such as b<1> may be formed on or secured to the disk a'. An annular recess a<2> is formed in the plate a' to permit the shafts to be out of alinement, and the parts of the coupling are so engaged as to permit longitudinal expansion of the shafts. The resilient blocks may be secured to the sides of the projections b<1>, and may be faced with metal or impregnated with graphite.
Patent GB-1444468-A (GB)
Title: Process for the allylic oxidation of unsaturated organic  compounds
IPC: C07J9/00
Filed: 1974-04-29
Abstract: 1444468 Allylic oxidation INSTITUT NATIONAL DE LA SANTE ET DE LA RECHERCHE MEDICALE 29 April 1974 [27 April 1973] 18647/74 Heading C2U Allylic oxidation of organic compounds containing a double bond to yield α,#-unsaturated ketones is effected with a CrO 3 -organic base complex under anhydrous conditions, in a solvent, under an inert gas atmosphere (e.g. N 2 ), at ambient temperature, and in the presence of a porous dehydrated solid of large surface area capable of adsorbing said complex (e.g. kieselguhr "activated" by heating at 600‹ C. for 4 hours), and is followed by adsorptive removal of the formed Cr salts (e.g. by filtration aided by ultrasonic vibrations). The organic base may be pyridine, pyridazine, 2,2<SP>1</SP>-bipyridyl, an amino acid, imidazole or 1,2,4-triazole. A catalyst (e.g. formic acid or copper salt) may also be present. The examples describe the production of 7- oxo-#<SP>5</SP> androstenes, pregnenes and cholestenes, and 15-oxo-#<SP>8(14)</SP>-cholen-24-oates. General refernce is also made to the production of (inter alia) 6-oxo estrogens.
Patent GB-884848-A (GB)
Title: New pyrazolopyrimidines and process for the manufacture thereof
Filed: 1959-06-01
Abstract: The invention comprises compounds of the general formulae <FORM:0884848/IV (b)/1> or <FORM:0884848/IV (b)/2> and their salts wherein R is a hydrogen atom or an alkyl group, and in which at least one of the alkyl groups in the 1, 2 or 5 positions contain more than one carbon atom, 1,2,7-unsubstituted-3 - R - 5 - alkyl - 4,6 - dioxo - 4,5,6,7 - tetrahydropyrazolo[3,4-d]pyrimidines and their salts in which R is a hydrogen atom or an alkyl group, 7 - unsubstituted - 3 - R - 1,5 - di - (C1-6 alkyl) - 4,6 - dioxo - 4,5,6,7 - tetrahydro - pyrazolo [3,4-d] pyrimidines and their salts in which R is a hydrogen atom or an alkyl group, and a process for the preparation of compounds of the general formulae <FORM:0884848/IV (b)/3> or <FORM:0884848/IV (b)/4> in which R1 and R2 each represent a hydrogen atom or an alkyl group and Alk an alkyl radical wherein a 3-aminopyrazole-4-carboxylic acid or reactive acid derivative thereof containing an oxo group is reacted with an alkyl-isocyanate and any 3-carbamylamino or 3-[N-(alkylcarbamyl)-alkyl carbamyl]-amino pyrazole-4-carboxylic acid or derivative thereof obtained is condensed to the pyrazolo-pyrimidine compound in the presence of a basic agent, and, if desired, a resulting free compound is converted into a salt thereof or a salt into the free compound.  Specifications 835,918, 884,849, 884,850 and 884,851 are referred to.ALSO:Pharmaceutical compositions having diuretic properties comprise 7-unsubstituted 1- or 2-alkyl - 3 - R - 5 - alkyl - 4,6 - dioxo - 4,5,6,7-tetrahydropyrazolo - [3,4 - a ] - pyrimidines of the formul  <FORM:0884848/VI/1> and the salts thereof, wherein R stands for hydrogen or an alkyl group, and in which at least one of the alkyl radicals in the 1 or 2 and 5-position contains more than one carbon atom; or 1,2,7 - unsubstituted - 3 - R - 5 - alkyl4,6 - dioxo - 4,5,6,7 - tetrahydro pyrazolo-[3,4-a ]-pyrimidines and their salts wherein R is a hydrogen atom or an alkyl group; or 7-unsubstituted - 3 - R - 1,5 - di - (C1-6 alkyl)-4,6 - dioxo - 4,5,6,7 - tetrahydropyrazolo-[3,4-a ]-pyrimidines and their salts, together with a pharmaceutical carrier.  The compositions may be in the form of conventional pharmaceutical preparations which may contain other therapeutically useful substances.  Specifications 835,918, 884,849, 884,850 and 884,851 are referred to.
Patent GB-987130-A (GB)
Title: Character recognition apparatus
IPC: G06V10/75
Filed: 1962-05-15
Abstract: 987,130. Automatic character reading. INTERNATIONAL BUSINESS MACHINES CORPORATION. May 15, 1962 [June 7, 1961], No. 18697/62. Heading G4R. In a character recognition apparatus the characters are scanned by a flying spot scanner 5 Fig. 1, and the signals are entered into a circuit adapted to derive, as in Specification 986, 276, the autocorrelation function Fig. 10 of the input pattern Fig. 2 expressed as a series of pulses on twentythree parallel leads one for each sub-area of the area covering the character. The autocorrelation function is multiplied by a second-difference operator (Fig. 11) in circuit 11 and the outputs on 37 parallel leads are applied to threshold circuits to produce two-state signals on 37 parallel leads. The two-state signals have the values +1 or -1 so that the normalising function which depends upon the sum of these values squared is the same for each character and no normalising procedure is necessary. The outputs from the threshold circuits amplified positively and negatively and applied through equal resistors to character lines in predetermined patterns in circuit 15. The line with the highest signal is determined by a circuit 17 to produce an identifying signal on one of ten leads. In a digital form, Fig. 28, the successive signals on twenty-three leads representing the autocorrelation count for each position (Fig. 10) are applied via a cable 229 to 37 accumulators 307. Each accumulator is a centre zero counter having seven stages, the value 64 counting as zero. Up to five leads from cable 229 representing the five seconddifference operator matrix positions are applied to the accumulator via gates 301 which are opened in succession to enter, first, the "-1" values in turn into the "1" stage of the accumulator and at the same time apply a "count down" pulse to the accumulator and then the "+4" value into the third stage of the accumulator together with a "count up" pulse. The gates and the up/down control are operated successively by the clock pulse and the clock pulse delayed at 303. This process is repeated for each of the count pulses and the value standing in the accumulator at the end gives the seconddifference value (Fig. 11) for the corresponding cell of the matrix. An output is taken only from the last stage of the accumulator so that if the final count is zero or positive an output is obtained whereas if it is negative there is no output. The 37 binary isgnals are each compared in ten comparators with values stored on switches in store 311 representing the binary values for that matrix cell for the ten characters. Agreement "1" or "0" causes a +1 signal to be applied to the corresponding character line and disagreement causes a-1 signal to be applied to the character leads. The lead having the highest value identifies the character. Specification 982,989 also is referred to.
Patent GB-256236-A (GB)
Title: Improvements in or relating to apparatus for the treatment of organisms with electrical current
IPC: A61N1/32
Filed: 1926-07-27
Abstract: 256,236. Arnberg, W. T. July 29, 1925, [Convention date]. Electric appliances.-The electrodes 1 are con. nected to the secondary winding 3 of a transformer, the primary winding 4 of which is connected through high resistances 5, 6 to a source of low frequency alternating current of relatively high voltage. The voltage across the primary winding 4 is thus reduced to a comparatively small value which is stepped up by the secondary winding sufficiently to overcome the initial resistance of the body to which the electrodes 1 are connected. After contact has been made with the body the voltage at the secondary terminals automatically falls to a safe value. The high resistance in the primary circuit prevents the secondary voltage rising unduly if the resistance of the body to which the electrodes are applied is reduced. In order to give warning that the primary current is switched on, a lamp 9 is shunted across one of the mains and a contact bar 10 over which the arm 11 of the variable resistance 6 slides.
Patent GB-121516-A (GB)
Title: Improvements in Furnaces for the Generation and Combustion of Producer-gas.
Inventor: GROCOTT FREDERICK JOHN
IPC: C10J3/22
Filed: 1917-12-19
Abstract: 121,516. Grocott, F. J. Dec. 19, 1917. Gas-producer furnaces.-A furnace for the generation and combustion of producer gas is constructed with a vertical shaft l, down which fuel is fed and at the base of which are fire-bars l<2>, and with a combustion chamber d above a gas-collecting chamber f, the roof of which is provided with gas ports e Air, which has been heated by passing through tortuous flues in the side walls, is delivered to the combustion chamber at d<6> and d'. The combustion chamber is connected to one or more boiler flues by short connecting passages c. The back and roof of the combustion chamber preferably form a concave surface, and its base is preferably convex as shown.
Patent GB-494533-A (GB)
Title: Improvements in or relating to printing and like rollers
IPC: B41N7/06
Filed: 1937-07-06
Abstract: 494,533. Rubbercompositions. FREEDLANDER, A. L. July 6, 1937, No. 18818. Convention date, Sept. 30, 1936. [Class 70] [Also in Group VIII] A printing or like roller has a body 8 of soft rubber, and end collars 9 and an enclosing sleeve 11 of a resilient material inert to oils, greases, and ink-cleaning compounds. As shown, a thin sheet of hard rubber is cemented with a hard rubber cement on to a sand-blasted steel rod 1, followed by a thin sheet of soft rubber 5. After vulcanization, two coats of cement 7 are applied, then the soft rubber base 8 and sheets of inert material 9 are wound on, vulcanized, ground up, an inert envelope 11 is applied, and the whole vulcanized and ground up to size. A suitable hard rubber cement comprises rubber, sulphur, zinc oxide, clay, whiting, mineral oil or palm oil, phenylbeta-naphthalamine, hexamethylenamine and benzol in the ratio of 1 gal. of benzol to 11b. of the other ingredients. A suitable cement 7 consists of a chloroprene derivative of monovinyl-acetylene, zinc oxide, magnesium oxide, sulphur, cumar, resin, cotton seed oil, and benzol in the ratio of 1 gal. of benzol to 11b. of the other ingredients. The inert material and the cements may be those known under the Registered Trade Mark " Duprene."
Patent GB-242359-A (GB)
Title: Heat radiating chair
IPC: A47C7/74
Filed: 1924-08-08
Abstract: 242,359. Waddell, W. F. Aug. 8, 1924. Seats combined with heating appliances.-A heat radiating chair comprises a hollow double bottom 3 communicating with spaces or chambers in the arms 4, wings 2, and back 1, so that a circulation of hot air is obtained within the chair frame when hot water or electrically heated pans are placed in some or all of the spaces. A pull - out footstool 6 may be provided with a heated pan.
Patent GB-735525-A (GB)
Title: Improvements in or relating to colour-television and stereoscopic-television cameras
IPC: H04N9/07
Filed: 1952-07-25
Abstract: 735,525. Colour and stereoscopic television tubes. PHILIPS ELECTRICAL INDUSTRIES, Ltd. July 25, 1952 [July 28, 1951], No. 18860/52. Class 39 (1). A colour television camera tube has an electrode system comprising at least a cathode, an accelerating anode, a field electrode, and a target, the electron beam being controlled by two grids between the accelerating anode and the field electrode, the grids being parallel and the wires of the one aligned with the centres of the apertures of the other. The voltage on either grid exceeds that on the cathode, and the field electrode voltage is at least equal to the lower direct voltage of the grid, so that the rays behind the grid converge on the target and alternating voltages produce displacement of the point of impact on the target. A strip colour filter 12 is mounted inside or outside the tube 11, the strip running parallel with the grid wires 4, 5. Scanning of the photomosaic 7 is frame-, line- or dot-sequential. The relationships between the focal distances of the grid-wire lenses, the direct and A.C. potentials on the grids and the displacement of the impacting rays are given in the Specification. The tube is applicable to stereoscopic television, complementary images being projected through the colour filters, or the latter are replaced by complementarily polarized strips. Specifications 733,176 and 735,524 are referred to.