baber/WOPTO huggingface dataset:
Patent GB-1404933-A (GB)
Title: Enzyme compositions
IPC: C12N11/06
Filed: 1971-09-24
Abstract: 1404933 Enzyme-protein complexes GISTBROCADES NV 8 Sept 1972 [24 Sept 1971] 44730/71 Heading C3H [Also in Division C2] A water-insoluble enzyme preparation in semi-solid or solid particulate form with the enzyme dispersed in the particles comprises bringing a mixture of a non-proteolytic enzyme and a gelling protein aqueous solution into particulate form, treating the resulting mixture in particulate form to effect gelation of the gelling protein, and treating the gelled protein in particulate form having said enzyme dispersed therein with a bi- or poly-functional protein reagent to cross-link molecules of the gelling protein and for molecules of the enzyme and the gelling protein to produce water-insoluble particles having enzyme dispersed therein. The gelling protein is usually gelatin or fresh egg white. The enzyme may be an invertase, lactase, maltase, amylase, urease, lipase, esterase, glucose isomerase, glucose oxidase, dehydrogenase or penicillinase and the bi- or polyfunctional reagent may be glutaric dialdehyde, arcolein, crotonaldehyde, a chloroformic ester, an acid chloride, epichlorohydrin, a derivative of dimethyladipic acid, a carbodiimide, phenol-2, 4-disulphonyl chloride, bromocyanide, a bromocyanide-activated compound of an acid halide or a mixture thereof. The aqueous solution may be brought into particulate form by mixing with an organic liquid, poorly immiscible or immiscible with water in such as way that the particulate form is obtained.
Patent GB-954740-A (GB)
Title: Improvements in or relating to semi-conductor devices
IPC: H01L23/488
Filed: 1962-11-30
Abstract: 954,740. Semi-conductor devices. PHILIPS ELECTRICAL INDUSTRIES Ltd. Nov. 30, 1962 [Dec. 4, 1961], No. 45390/62. Heading H1K. A connection between a rod and a semi-conductor body is made by means of a stack of washer shaped springs which are clamped at their inner edge to the rod and at their outer edge to a cup-shaped conductor which is fixed to the body. As shown, a rectifier body 1 is soldered between two gold-plated molybdenum plates 2, 3. A cup-shaped conductor 5 is soldered to plate 2 and a base 4 is soldered to plate 3. Rod 9 is connected to conductor 5 by springs 7 which are held in place by crimping the end of rod 9 and edge 6 of conductor 5 over pressure rings 10, 8. Envelope 15, which has a glass plug 14 with a tube 13 sealed into it, is secured to the base 4 by rim 16 and rod 9 is soldered at 12 to the end of tube 13. Duct 17 in rod 9 enables a suitable environment to be supplied. after the envelope is sealed, the duct being subsequently closed by soldering. Springs 7 may be corrugated and may be made of copper.
Patent GB-1208902-A (GB)
Title: N<1>-substituted-6-nitroindazoles and pesticidal compositions containing the same
IPC: C07D231/56
Filed: 1967-10-05
Abstract: 1,208,902. Nitroindazole derivatives. TENNECO CHEMICALS Inc. 5 Oct., 1967 [25 Oct., 1966], No. 45586/67. Heading C2C. [Also in Divisions A5 and C3] Novel compounds of the formula wherein X represents -CH 2 X<SP>1</SP>, -CHX<SP>1</SP>CX<SP>1</SP> 3 , -(CX<SP>1</SP> 3 ) 2 X<SP>1</SP>, -CH 2 CH 2 X<SP>1</SP>, -CH 2 OCOCH 2 X<SP>1</SP>, -CH 2 OCOR, -CH 2 -S-CH 2 -COOR, -CH 2 -S-CSOR, -CH 2 OCOSR, -COCH 2 X<SP>1</SP>, -CH 2 OSO 2 R, -COR, -COCX<SP>1</SP> 3 , -COSR, -R, -SR, -SCX<SP>1</SP> 3 , -SCX<SP>1</SP> 2 CHX<SP>1</SP> 2 , -SO 2 R or -SO 2 CX<SP>1</SP> 3 ; X<SP>1</SP> represents -OH, -OR, -SCN or halogen; R represents alkyl (C 1-12 ), haloalkyl (C 1-4 ), phenyl, chlorophenyl, dichlorophenyl, hydroxyphenyl, alkyl- or haloalkylphenyl, or nitrophenyl; Y represents alkyl (C 1-4 ), halogen or nitro; Z represents hydrogen or halogen; and n represents 0, 1 or 2, are prepared by standard methods for introducing or interconverting substituents in the N<SP>1</SP>-position. These compounds have biocidal properties (see Divisions A5 and C3).
Patent GB-1281132-A (GB)
Title: Improvements in or relating to corpuscular beam apparatus
IPC: H01J37/02
Filed: 1970-09-25
Abstract: 1281132 Electron beam apparatus; ion beam apparatus SIEMENS AG 25 Sept 1970 [30 Sept 1969 (2)] 45756/70 Heading H1D [Also in Division G4] Corpuscular beam apparatus (i.e. electron or ion microscopes or diffraction apparatus) in which magnetic means are provided for the positioning of a component (e.g. object table, diaphragm, Hoppe zoned diaphragm or phase shifting plate, or foil) comprises a plurality of shifting magnet pairs 14 to 17 and locating magnet pairs, e.g. 7, 8, at least one magnet of each pair being an electromagnet, and control circuits to the electromagnets to cause the locating magnets to effect relatively large or small frictional holding forces, the latter during selective energization of the shifting magnet pairs to effect positioning. The magnets on the components may be permanent magnets. During positioning the rear magnets of each pair in the direction of motion may exert a larger repulsive force than the forward pairs. Stabilizing magnet pairs (35, 36) (Fig. 2, not shown) may be included to prevent rotation, and mutually opposite stabilizing pairs may exert identical attractive forces smaller than the shifting magnet forces, the polepieces also being further spaced than those of the shifting magnets. During object table 5 movement, the locating magnets repel so that surfaces 10, 11 are guiding surfaces, and during de-energization of the shifting pairs, the repulsive forces may be further increased. Subsequently on de-energization, gaps 50 and 51 close and the table weight effects high friction which may be increased by attraction of the polepieces of the locating magnets. Magnet coils secured to the apparatus may be isolated from the evacuated space, and energizing currents wobbulated to eradicate remanent effects. In Fig. 3 (not shown), clockwise rotation of potentiometer arm (69) causes sequential energization of the locating magnet coils (60, 61, 62) prior to energization of shifting magnet coils (63, 64) at position (71), then increased energization of the former prior to de-energization of the latter at position (74). The magnets may be polarity switched during de-energization of magnets 14 to 17. The control circuit may include means such as a wedge filter (Fig. 6, not shown) to generate an electrical signal corresponding to particular shifting magnet energizing currents to identify specific component positions, storing means, and means to energize according to the stored signal, e.g. as in machining several objects, the electromagnets on one side preferably being non-variably energized. For instance, in Fig. 14 (not shown) converter (111) converts signals determined by D.C. coil current i to suitable storage signals, e.g. binary, for store (110). Automatic repositioning in Fig. 6 (not shown) may be effected by controller (134) including a servo motion performing follow-up during differences between stored set point values S2<SP>1</SP> and actual values S2.
Patent GB-1471569-A (GB)
Title: Vehicle headlamps
IPC: F21V31/03
Filed: 1974-10-25
Abstract: 1471569 Vehicle headlamps WESTFALISCHE METALL INDUSTRIE KG HUECK & CO 25 Oct 1974 [12 Dec 1973] 46288/74 Heading F4R In a vehicle headlamp comprising a lamp glass or diffuser lens 2 sealed to a reflector 1, the interior of the headlamp is in communication with the exterior by means of a duct 9 which has a minimum transverse cross-section of 40 mm.<SP>2</SP> and which is formed without capillary passage for example with no internal dimension smaller than 2 mm. As shown in Fig. 1, the duct 9 may comprise an annular member 6 of U-shaped cross-section which is mounted on lugs 7 to surround the opening 3 in the reflector through which the bulb 4 is inserted, the open end of member 6 being sealed by packing 8 which also effects a seal with the rear of the reflector 1. Openings 15 and 16 are formed in the duct 9 by bending over into the duct crosssection the radially inner and outer walls 13, 14 respectively, with, preferably, the opening 15 between the duet and the interior of the headlamp disposed at the top part of the duct and the opening 16 to the exterior at the lowest part of the duet. This duct arrangement enables moisture to be condensed in the duet and to flow out through opening 16 while maintaining a free air access to the interior of the headlamp. In an alternative embodiment shown in Fig. 3, the rear metal cap 21 enclosing the inserted lamp 4, and forming a known arrangement, is nested within a concentric plastics cap 28 so dimensioned as to form a tubular duct 32 therebetween, with an opening 34 being provided in the inner cap 21 and an opening 33 in the outer cap 28. The electrical terminals for the lamp may be carried by the plastics outer cap 28.
Patent GB-1082869-A (GB)
Title: Process for the manufacture of 2,2,3-trichlorobutane
IPC: C07C17/02
Filed: 1965-11-03
Abstract: 2,2,3-Trichlorobutane is prepared by reacting chlorine with butene-2 in the molar ratio of substantially 1.5-2:1, at a temperature of 0 DEG  to -80 DEG  C., with radiation of ultra-violet light. By-products obtained are 2,3-di-chlorobutane and 1,2,3-trichlorobutane, of which the former may be recycled to the reaction wherein it is chlorinated to 2,2,3-trichlorobutane.
Patent GB-1466655-A (GB)
Title: Making a magnetic oxide film
IPC: G11B5/851
Filed: 1975-11-12
Abstract: 1466655 Forming sputtered magnetic iron  oxide films NIPPON TELEGRAPH & TELEPHONE PUBLIC CORP 12 Nov 1975 [12 Nov 1974] 46777/75 Heading C7F Sputtered magnetic iron oxide films are deposited an substrates such as Al and rock salt by sputtering an oxide free target of Fe of Fe alloy in an atmosphere of rare gas and oxygen and maintaining the oxygen partial pressure at 3 x 10<SP>-3</SP> to 6 x 10<SP>-3</SP> Torr. The target may be pre-sputtered in a mixture of rare gas and oxygen the oxygen partial pressure being less than 3 x 10<SP>-3</SP> Torr to remove any oxide film on the target. During pre-sputtering the substrate is protected by a movable shutter and after pre-sputtering the oxygen partial pressure is raised to 3 x 10<SP>3</SP>-6 x 10<SP>-3</SP> Torr to effect sputtering, the substrate temperature being held at 150-250C. An R.F. voltage is preferably used for pre-sputtering and sputtering and the volume ratio of argon to oxygen is preferably 4:1 to 9:1. The sputter coated substrate may be annealed.
Patent GB-468335-A (GB)
Abstract: 468,335. Body - cavity inspection instruments. WOLF GES., G. Dec. 7, 1936, No. 33465. Convention date, Dec. 9, 1935. [Class 81 (ii)] In gastroscopes and other body-cavity inspection instruments the sponge or the like, commonly carried on the leading end of the lamp housing and employed in removing mucus, is replaced by an inflated rubber ball g of greater diameter than the instrument. The ball g may have a screwed sleeve f engaged with a screw-bolt e on the lamp housing d, or bolt and sleeve may be reversed. The housing d is formed concave to clamp the ball tightly. The ball may be spherical or elliptical.
Patent GB-965572-A (GB)
Title: New steroid compounds and their formation
IPC: C07J71/00
Filed: 1961-02-01
Abstract: The invention comprises 21-bromo-pregna-3, 11, 20-triones having the formula: <FORM:0965572/C1/1> in which R1 and R2, and R3 and R4 each form a double bond between the 4(5) and the 16(17) positions respectively or R1 is a bromine atom, R3 is an a -bromine atom, and R2 and R4 are hydrogen atoms and processes for the preparation thereof by oxidising and brominating 3a -hydroxy-17a , 21-dibromo-pregnane-11, 20-dione to form 4, 17a , 21-tribromo-pregnane-3, 11, 20-trione and eliminating hydrogen bromide therefrom to obtain 21-bromo-pregna-4, 16-dien-3, 11, 20-trione. Oxidation and bromination may be effected with N-bromo-succinimide and elimination of hydrogen bromide with lithium halide-lithium carbonate couple in dimethyl formamide.
Patent GB-1119632-A (GB)
Title: An arrangement for the reproduction of binary data from a magnetisable data store
IPC: G11B20/14
Filed: 1965-11-05
Abstract: 1,119,632. Magnetic playback circuits; digital stores. K. DIEHL. 5 Nov., 1965 [14 Nov., 1964], No. 47007/65. Headings G4C and G5R. [Also in Division H3] To prevent errors in the read-out of binary signals from a magnetic record, such as a tape or storage drum, due, e.g. to dust specks or deformations of the magnetic layer, both binary " 1 " and " 0 " are recorded as alternating signals of the same frequency but of different durations t, t1, the commencement of the signals occurring at regular intervals to provide a train of regularly recurring pulses. The readout signals after amplification are rectified at 2, Fig. 3, and fed through transistor amplifiers 3, 4 and decoupling diodes 5 to charge capacitors 7, 9. The time constants of the charging circuits are such that capacitor 7 is fully charged, Fig. 4d, by every " bit" signal whereas capacitor 9 is fully charged by a relatively long binary " 1 " signal but only partially charged by a relatively short "0" signal, Fig. 4e. The latter data bit signals, Fig. 4e, are fed over line 10 to a computer where the " 1 " bits are separated by a threshold device and processing effected during the bit spacing interval t2. The voltage on capacitor 7, Fig. 4d, is differentiated at 11, 12, the resultant voltage spikes, Fig. 4f, being fed over line 18 as timing pulses to the computer. An astable flip-flop 13 is triggered over diode 22 by the leading edge of each bit signal and reverts to normal after the bit duration time t, causing transistors 19, 20 to conduct and discharge the capacitors 7, 9 during each time interval t2.
Patent GB-1017837-A (GB)
Title: Improved integral motor-tachometer device
IPC: H02P23/00
Filed: 1963-11-28
Abstract: 1,017,837. Photo-electric tachometers. AMPEX CORPORATION. Nov. 28, 1963 [Dec. 18 1962], No. 47064/63. Heading G1A. [Also in Divisions G3 and H2] An integral motor-tachometer comprises a stator and a printed circuit rotor, said rotor being formed as a disc having indicia circumferentially equally spaced thereon, and means sensing the passage of the indicia to give an output representative of the rotor speed. The printed circuit rotor 32, Fig. 2, carries an annular array of indicia 31 which interrupt light from a source 41 to a photo-cell 43 at a frequency indicative of rotor speed. Collimating slots 42 are provided. The indicia, which may be produced by photoreproduction from an etched master, may be reflective instead of obstructive, and a focussed electron beam may be used in place of the light beam. The output of the photo-cell is compared with a frequency source 17, Fig. 1, (not shown) in a phase comparator 19 and any difference energizes a servo amplifier 21 to maintain the speed of motor 16 and thus of a data record tape 10 constant. The reference frequency is recorded on the tape to enable reconstruction of the time base on playback. Reference has been directed by the Comptroller to Specifications 874,394 and 889,975.
Patent GB-1376660-A (GB)
Title: Sound absorbing panel
IPC: E04B1/82
Filed: 1972-10-12
Abstract: 1376660 Screens OC ECKEL 12 Oct 1972 [13 Jan 1972] 47216/72 Heading A4U [Also in Divisions B5 and E1] A space dividing screen comprises sound absorbing panels 10 hinged together along their vertical edges, each panel having a perpendicularly stepped inner septum 26 and spaced rigid layers 43 containing mineral wool or glass fibres and outer facing sheets 20, 22 of mesh. The panel 10 has a peripheral frame of channel-section with interned edges on the flanges thereof.
Patent GB-1087756-A (GB)
Title: Chromating of aluminium surfaces
IPC: C23C22/44
Filed: 1965-11-09
Abstract: The main invention is modified in that the aqueous acid solution containing hexavalent chromium and fluoride ions also contains 0.1-4g/l of uranium in the form of an anion, e.g. as uranic acid or alkali metal or ammonium uranate, without other activating anions.
Patent GB-1272871-A (GB)
Title: Compositions containing amorphous 1,2-polybutadiene
Inventor: LESAGE JEAN
IPC: C08L9/00
Filed: 1970-10-12
Abstract: 1,272,871. Rubber compositions. INSTITUT FRANCAIS DU PETROLE DES CARBURANTS ET LUBRIFIANTS. 12 Oct., 1970 [21 Oct., 1969], No. 48349/70. Headings C3P and C3Q. Rubber compositions comprise, based by weight on total rubber, (a) 50-95% natural rubber, and (b) 50-5% of 1,2-polybutadiene having at least 90% 1,2-units, a crystallinity ratio at 20‹ C. of below 2% and an average M.W. of at least 50,000. Exemplified compositions are formed from the above and phenyl-#- naphthylamine, aromatic oil, carbon black, stearic acid, diphenylamine/acetone condensation product, sulphur, zinc oxide and N-cyclohexyl-2-benzothiazyl sulphenamide, and are vulcanized.
Patent GB-1466770-A (GB)
Title: Apparatus for applying etchant to one face of a moving web
IPC: C23F1/00
Filed: 1974-11-08
Abstract: 1466770 Etching BUCKBEE-MEARS CO 8 Nov 1974 [11 July 1974] 48357/74 Heading B6J An etching apparatus comprises an etching chamber 10 through which a web 9 covered with resist layers 12, 13 having parts removed to permit etching of a metal layer 11 is fed over etchant spray nozzles 22, 23, 24, the edge regions of the web resting on support guides 14, 15 which extend across the edges of the web, and a pair of flexible sealing members 16, 17, e.g. of polytetrafluorethylene, resting on the edge regions of the web and being pressed against the web by inflatable air bags 18, 20. The members 16, 17 may be omitted. The web may pass through three such chambers and thereafter through a cleaning squeegee apparatus and two further chambers wherein both the top and bottom of the web are etched.
Patent GB-1382364-A (GB)
Title: Stilbene compounds
IPC: C08L77/00
Filed: 1972-10-20
Abstract: 1382364 Stilbene derivatives CIBA-GEIGY AG 20 Oct 1972 [21 Oct 1971 14 April 1972] 48496/72 Heading C2C [Also in Division C3] Novel compounds of formula wherein R 1  is C 1-4  alkyl, phenyl or benzyl, and phenyl and benzyl may be substituted by Cl or CH 3 , are prepared by conventional methods for forming benoxazole rings. The compounds are used for optically brightening polymers in bulk. The intermediate of formula is prepared from stilbene dicarboxylic acid chloride and 2-amino-4-methylsulphonylphenol. 4-Benzyl, 4-p-chlorobenzyl-4-tolyl-4-p-chlorophenyl, 4-n- and iso-propyl- and 4-n-butylsulphonyl-2-amino phenols are prepared by reduction of the corresponding nitro compounds. 4-p-chlorophenylsulphonyl- and 4-n-propylsulphonyl-2-nitro-phenols are prepared by the action of alkali to convert Cl to phenolic OH.
Patent GB-1491503-A (GB)
Title: Method of preventing and treating thrombosis
IPC: C07D215/22
Filed: 1974-11-08
Abstract: 1491503 Preventing and treating thrombosis OTSUKA PHARMACEUTICAL CO Ltd 8 Nov 1974 [10 Nov 1973] 48520/74 Heading A5B Pharmaceutical compositions for preventing blood platelet aggregation, minimizing blood platelet adhesion and preventing or treating thrombosis, in oral dosage form, comprise an effective amount of 5-(2 - hydroxy - 3 - t - butyl-amino) propoxy - 3, 4 - dihydrocarbostyril having the formula  together with a solid pharmaceutically acceptable carrier or diluent. The compositions may be in the form of tablets.
Patent GB-1081687-A (GB)
Title: Positive drive axle construction
Filed: 1964-11-30
Abstract: 1,081,687. Balance gear; ratchet clutches. J. M. DELINE. Nov. 30, 1964, No. 48573/64. Headings F2C and F2D. An automotive vehicle axle balance gear, automatically effecting, in Forward drive, positive drive of the one of wheel half-axles 5, 6 exhibiting the greatest torque resistance whilst permitting free-wheeling of the other axle, but preventing free-wheeling of both axles simultaneously, comprises clutch teeth 17, 18 fast with a bevel drive gear 2 and respectively engageable by clutch teeth 23, 24 extending from clutch sleeves 19, 20 in oppositely handed screw-threaded engagement respectively with housing sleeves 33, 34 fast with hubs 47, 48 splined to the half shafts 5, 6. The sleeves 19, 20 are rotationally and axially movably mounted on a shaft 7 which is splined to the drive gear 2 and supported by ballbearings 55, 56 in the hubs 47, 48. One-way clutches between the sleeves 19, 20 and shaft 7 comprise balls 102, 103 engaging longitudinal grooves 86, 87 in the sleeves and groove formations 100, 101 in the shaft, said formations comprising oppositely slanted continuous grooves 88, 89 into which blend normally disposed grooves 94, 95 having closed ends 98, 99. The sleeves 19, 20 are mechanically linked through rocker arms 63, 64, rods 71, 72 slidable in the housing sleeves 33, 34, bearings 75, 76 and rods 77 slidable in the drive gear 2. Helical springs 45, 46 substantially eliminate shockloading on clutch engagement. In operation, with the vehicle driven in a straight line both clutches 17, 23; 18, 24 are partly engaged for equal torque distribution. In Forward drive, when the half axle 5 overruns the half axle 6, the housing sleeve 33 rotates relatively to the clutch sleeve 19, the latter being at that time engaged with the slower rotating drive gear 2, so that the sleeve 19 is withdrawn and the teeth 17, 22 disengaged thereby permitting free-wheeling of the axle 5 and producing relative rotation between the clutch sleeve 19 and the shaft 7. This latter relative rotation draws the ball 102 away from the closed groove end 98 and urges it into continuous orbiting in the groove 88. When on reversal of relative axle speed the half axle 6 overruns the half axle 5, the relative direction of rotation between the clutch sleeve 19 and the shaft 7 is reversed and the ball 102 is directed into the groove 94 and against the closed end 98 thereof, whereupon the clutch sleeve is driven towards the drive gear 2 at the same speed thereof and having a predetermined rotational location with respect to the clutch teeth 17. The clutch teeth 17, 23 are thereby synchronously engaged, thereby transferring the drive to the slower rotating half axle. The relative rotation of the half axles producing engagement of the clutch teeth 17, 23 operates to urge a disengagement of the clutch teeth 18, 24 due to the oppositely handed screw threads; however, due to the mechanical linkage through the rocker arms 63, 64 at no instant can both clutches be disengaged. In Reverse, it is the clutch associated with the faster rotating wheel axle which is engaged.
Patent GB-1287946-A (GB)
IPC: G01R33/345
Filed: 1969-10-02
Abstract: 1287946 Gyromagnetic resonance spectrometers C FRANCONI 2 Oct 1969 [5 Oct 1968] 48589/69 Heading G1N [Also in Division H1] In an electron spin resonance induction spectrometer, resonance-exciting microwave radiation from Klystron 10 is decoupled from the resonanceinduced radiation by using a bimodal resonance volume in which the exciting and induced modes are mutually perpendicularly polarized, the induced radiation being detected at 11. Two samples may be present; both may undergo spin resonance or one may be used to compensate for the loading of the cavity by the solvent of the other (test) sample. The resonance volume may include unimodal sections and these may be rotatable about the direction of propagation of the microwaves for adjustment purposes. Many different examples are described with reference to Figs.2 to 15 (not shown). The input or the output microwave energy may be coupled through a pair of irises arranged so that the desirable signals are reinforced and the unwanted effects are substantially cancelled.
Patent GB-1020255-A (GB)
Title: Means for cleaning and/or re-shaping open agricultural drains, ditches and the like channels
IPC: E02F5/02
Filed: 1964-11-30
Abstract: 1,020,255. Shovelling machines. H. WHITE and G. WHITE. Nov. 30, 1964 [Jan. 28, 1964], No. 48645/64. Heading E1F. In a swop assembly for the cleaning and reshaping of ditches the scoop is pivotally connected to the free ends of both a vertically swingable boom mountable on the lift linkage of a tractor and tie bar means pivotally connected to intermediate the ends of the boom and the dimensional relationships between the scoop, boom and tie bar means together with a latch by which the scoop can be locked to the boom when required determine the angle of the base of the scoop to the horizontal during the various phases of the digging cycle of the assembly.