baber/WOPTO huggingface dataset:
Patent GB-870286-A (GB)
Title: Improvements in or relating to 6-methyl-3-oxo-í~-steroid compounds
Inventor: KIRK DAVID NEVILLE
IPC: C07J75/00
Filed: 1958-11-04
Abstract: The invention comprises (1) a process for the preparation of steroids having, apart from substituents at the 11, 16 and 17 positions and unsaturated linkages in rings C or D, the general formula: <FORM:0870286/IV (b)/1> which comprises reacting a corresponding 3b -hydroxy-6-methyl-D 5-steroid with a benzoquinone in presence of an Oppenauer oxidant; (2) steroids of the formula:  <FORM:0870286/IV (b)/2> (wherein R is an acyl group of up to 10 carbon atoms); and (3) the following specific 6-methyl-3-oxo-D 4, 6-steroids:- 17b -hydroxy-6-methyl-17a -(prop-l-ynyl) -androsta- 4:6-dien-3-one, 16a :17a -isopropylidenedioxy-6-methyl-pregna-4:6-diene-3:20-dione, 6-methylpregna-4:6:16-triene-3:20-dione, 6:16-dimethylpregna 4:6:16-triene-3:20-dione and 6:16-dimethyl-16a :17a -epoxypregna- 4:6-diene- 3:20-dione. The preferred benzoquinone is p-benzoquinone or chloranil and the preferred oxidant is aluminium isopropoxide, tert-butoxide or chloroisopropoxide in an organic solvent.  The process may be applied to steroids of the androstane, pregnane, cholestane and spirostane series.  Examples describe the preparation of steroids of the general formula (I) wherein R is variously acetyl, caproyl, butryl, valeryl and propionyl, of the specific steroids referred to above and of 6-methyl-androsta-4:6-diene3 : 17-dione, 6-methylpregna-4 : 6-diene-3 : 20-dione, 6-methyl-25D-spirosta-4 : 6-dien-3-one, 6-methylcholesta- 4:6-dien-3-one, 6:17a -dimethyl-17b -hydroxy-androsta- 4:6-dien-3-one and 17a -ethynyl-17b -hydroxy-6-methylandrosta-4:6-dien-3-one.  3b :17b -Dihydroxy-6-methyl-17a -(prop-l-ynyl) -androst-5-ene is prepared from the 17-one and propynyl magnesium bromide.  3b -Hydroxy-6:16-dimethyl- 16a :17a -epoxypregn-5-en-20-one is prepared from the 16-ene and alkaline hydrogen peroxide. Specifications 840,477, 841,870, 850,423, 851,741, 852,683 and 861,007 are referred to.  Reference has been directed by the Comptroller to Specification 843,353.ALSO:A pharmaceutical preparation comprises a 17a  - acyloxy - 6 - methylpregna - 4 : 6 - diene-3 : 20-dione (in which the acyl group contains up to 10 carbon atoms) in admixture with one or more solid or liquid inert carriers.  Tablets containing 17a  - acetoxy - 6 - methylpregna - 4:6-diene-3:20-dione are described, and powders, capsules, pills, solutions, emulsions, suspensions, syrups and elixirs also are referred to.  Specifications 840,477, 841,870, 850,423, 851,741, 852,683 and 861,007 are referred to.  Reference has been directed by the Comptroller to Specification 843,353.
Patent GB-1065898-A (GB)
Title: Controllable friction clutch
IPC: F16D13/50
Filed: 1964-08-31
Abstract: 1,065,898. Friction clutches. JEAN WALTERSCHEID KOMM. GES. Aug. 31, 1964 [Oct. 18, 1963], No. 35572/64. Heading F2C. In a friction clutch of the kind wherein a driven clutch plate 1 is clamped between a driving back plate 2 and presser plate 3 by the action of a spring plate 4, balls 6 are provided in depressions in the spring plate 4 and a coverplate 5 fast with back plate 2 and the effective cavities of the cover-plate depressions are closer to the clutch axis than the centres of the spring plate depressions so that during assembly the spring plate is pre-loaded both axially and radially. The clutch is disengaged by axial movement of a ring 9 which rotates cranks 8 pivoted in the presser plate 3 and carries a bracket 14 which is pivotally connected to a link 10 adjustably secured to the cover-plate 5. Rotation of the cranks 8 causes the latter to move laterally about the pivot between the bracket 14 and the link 10 and thus moves the presser plate axial right for clutch release. The inner part of the presser plate 3 is formed with teeth which support the plate spring 4 and fins 7 on the presser plate circulate cooling air the flow of which is controlled by temperature responsive shutter elements 13.
Patent GB-1193284-A (GB)
Title: A Lamp Structure for Use as Table and Wall Lamp
IPC: F21V17/02
Filed: 1967-08-03
Abstract: 1,193,284. Lamps. E. GISMONDI and S. MAZZA, [trading as " STUDIO ARTEMIDE S.a.S. DI E. GISMONDI & C."]. 3 Aug., 1967 [5 Aug., 1966], No. 35623/67. Heading F4R.  A table or wall lamp comprises a base 1 carrying a light source 15 and supporting two globe members 8, 9 one inside the other, each having an aperture and being mounted for relative rotation. The base 1 consists of outer and inner shells 1a 1b carried by a support 2a and enclosing two cylindrical guide bushes 4, 5 provided with flanges and ball bearings arranged in grooves in the flanges to facilitate their relative rotation. The globes 8, 9 are secured in grooves 6, 7 in the parts 4 and 5 respectively. Each globe has an aperture for light emission and the inner globe 8 may be highly reflecting internally. The globes may be opaque or translucent.
Patent GB-498105-A (GB)
Title: Improvements in or relating to the pickling and felting of hairs
IPC: D01C3/00
Filed: 1937-12-23
Abstract: Animal hairs are treated in an aqueous pickle containing nitric acid and an oxidizing agent such as cerium nitrate so that the pH value of the treated hairs is 2,1-2,5; a suitable pickle contains 12-14 per cent nitric acid, 5,7-6,1 per cent cerium nitrate and may contain hydrogen peroxide.  The pH value of the treated hairs is defined as being that of 100 ccs. of distilled water which has been in contact with 1 gm. of the treated hairs for 1 hr. on a water bath.
Patent GB-1065628-A (GB)
Title: Process for the production of saturated aldehydes
IPC: C07C45/62
Filed: 1965-08-20
Abstract: Saturated aliphatic aldehydes are made by partial hydrogenation at temperatures 70-140 DEG  C. of olefinically unsaturated aldehydes in the presence of a catalyst comprising metallic palladium and one or more additional components selected from copper, nickel and cobalt. The catalyst may also contain metallic silver or gold and is preferably supported on a carrier, e.g. pumice.  Any unreacted hydrogen may be recycled.  Examples relate to the preparation of butyraldehyde and a C8 saturated aldehyde.
Patent GB-432349-A (GB)
Title: Process for the production of natural coloured photographic images on paper, films and the like
IPC: G03C7/25
Filed: 1933-12-20
Abstract: 432,349. Colour photography. GSCHOPF, R., 31, Sch÷nbrunnerstrasse, Vienna. Dec. 20, 1933, No. 35877. Convention date, Dec. 21, 1932. [Class 98 (ii)] Relates to the production of multicolour prints upon paper, films, &c. by the imbibition process and consists in the employment of colloidal solutions of dye bases for colouring the photographic gelatine printing matrices. The colloidal solution is prepared by adding to the solution of the dyestuff, e.g. thionine blue, an alkali e.g. ammonia until the solution is of alkaline reaction. In certain cases a slight excess of alkali may be added ; further, a protective colloid, e.g. dextrine may be added prior to the alkali to avoid flocculation. The Specification as open to inspection under Sect. 91 comprises also the subject-matter of Specification 430,823 and, in addition, the following : (1) the use of pyridine, its derivatives and homologues in place of ammonia ; (2) the mordanting of the gelatine paper carrier by means of #-oxynaphthoic acids and homologues thereof, e.g. derivatives of naphthylamine and naphthol; (3) the provision of a thin, soft, removable top coating of gelatine on the surface of the carrier, and (4) apparatus for registering the different colour impressions comprising a plate 1, Fig. 2 (Cancelled), having a roughened surface 2 to prevent movement of the carrier 3, and furnished with triangular pins 4 adapted to engage similar but larger perforations 6 in the printing matrices 5 which have been previously assembled in register and perforated in a corresponding operating-apparatus. This subject-matter does not appear in the Specification as accepted.
Patent GB-870681-A (GB)
Title: Substituted maleic anhydrides
Inventor: HARKES PIETER DANIEL
IPC: C07C51/567
Filed: 1958-11-07
Abstract: Dimethyl and methyl ethyl maleic anhydrides are prepared by reacting a compound of general formula R.CO.COOR1, where R is methyl or ethyl, and R1 a hydrogen or an aliphatic hydrocarbon radical containing 1-24 carbon atoms e.g. pyruvic or a -keto-butyric acids or esters thereof, with succinic acid anhydride in the presence of a mono-alkali metal hydrogen succinate, or a nitrogenous organic base, either free or in the form of a succinate, under substantially anhydrous conditions. The succinic anhydride or mono-succinate may be formed partially or completely in situ, but alkali-metal mono-succinates are preferably preformed.  Bases such as pyridine, picoline, lutidine, quinoline, isoquinoline and triethylamine, are suitable and the temperatures of reaction may be between 5 and 135 DEG C. and a proportion of free succinic acid is preferably included.  Examples describe the preparation of anhydrides using pyruvic acid ethyl pyruvate, and a -keto butyric acid with succinic anhydride and pyridine, or other t-amines and mono-alkali metal succinates.
Patent GB-1509095-A (GB)
Title: Pattern inspection apparatus
IPC: G06V10/88
Filed: 1975-09-02
Abstract: 1509095 Pattern recognition apparatus SPERRY RAND CORP 2 Sept 1975 36067/75 Heading G4R A pattern recognition system, e.g. for identifying fingerprints, has a rotary disc 12 carrying an optical grating through which incoherent light from a source 10 passes. A prism 18 and lens 17 return light to the disc. The disc has portions 51 (Fig. 6) reflecting the returned light and portions 57 transmitting the returned light. The system is arranged so that, in the absence of the finger 21 light passing through portion 57 is reflected at the prism and again passes through portions 57 so that no light is reflected to detectors 19. If a finger is pressed against the prism light is diffracted by the ridge lines and impinges on portions 51 to be reflected to the detectors. Each detector receives light from a particular area of the fingerprint and reaches a peak when the ridges are aligned with the grating. The disc carries a series of radial slots around its periphery which supply light from a source to a detector to provide timing pulses which identify the angle of the grating at the positions when the detectors produce a maximum output. The timing pulses feed a counter. The disc also has a layer of absorbing material 50 arranged so that a part of the material lies between each reflecting and transparent strip and has a width half that of the reflecting strip. The widths of the reflecting and transparent strips are equal. This allows a lens 17 that is not fully corrected for aberration to be used.
Patent GB-855515-A (GB)
Title: Centrifuge construction
IPC: B04B1/12
Filed: 1956-11-27
Abstract: 855,515. Centrifugal separators. DORROLIVER Inc. Nov. 27, 1956 [Dec. 20, 1955], No.36219/56. Class 23 In a separator for separating liquid and discharging a lighter component over a weir 34 and a heavier component through peripheral nozzles 16, part of the heavier component is returned to the separating chamber 32 by tubes or passages 29 and an annular screen 42 is interposed between the zone or regions 37 leading to the nozzles and the separating chamber. The screen is of stainless steel and rests: on the ends of reinforced plastic blocks 38 and the bowl surfaces 44, 47.
Patent GB-448517-A (GB)
Title: Method of and means for obtaining accurate linear measurements
IPC: G01B5/00
Filed: 1934-12-18
Abstract: 448,517. Gauging-devices. NEWALL ENGINEERING CO., Ltd., and SUMMERS, K. E., Old Fletton, Peterborough. Dec. 18, 1934, No. 36288. [Class 83 (iii)] [See also Group XIX] For obtaining accurate linear measurements, particularly in connection with jig borers, a carriage b is positioned on a support by means of accurately manufactured positioning elements a representing units of measurement and carries a gauging instrument h by which a measuring stop k can be adjusted to a fraction of a unit. The carriage b rests on a row of rollers a by means of a flat c at one end and a roller d at the other end which roller is located in a V-shaped bearing surface. The carriage can then only occupy definite positions defined by the rollers which are accurately made to unit diameter. A micrometer head is secured to a bracket e on the carriage the anvil f of which is adapted to engage the feeler g of a dial gauge h mounted on a slide i carrying a measuring stop k. For adjusting an article through a given distance, the article is moved to engage the stop k and adjusted together with the latter until the gauge shows standard reading. The distance is then set up by moving the carriage or the micrometer head, or both and the article moved against the stop k and adjusted with the latter until the gauge again shows a standard reading. The article will then have moved through the required distance. The micrometer head may be replaced by block gauges.
Patent GB-950717-A (GB)
Title: New dibenzo-oxepin and -thiepin derivatives
IPC: C07D337/12
Filed: 1962-09-27
Abstract: The invention comprises compounds of the general formula: <FORM:0950717/C2/1> wherein X is an oxygen or sulphur atom, R1 is a hydrogen or halogen atom or an alkyl or alkoxy radical and A is a tertiary amino group, and the acid addition salts and quaternary ammonium compounds thereof.  Preferred compounds are those wherein the tertiary amino group A is a dialkylamino group or an unsubstituted or substituted nitrogen-containing heterocyclic radical. The compounds are prepared by reacting a cyclic ketone of the general formula: <FORM:0950717/C2/2> in which R1 and X are as defined above, with a Grignard compound of the general formula: Hal-Mg-CH2-CH2-CH2-A in which A is as defined above and Hal is a halogen atom, decomposing the addition product so obtained to give a carbinol of the general formula: <FORM:0950717/C2/3> in which A, X and R1 are as defined above, and splitting off water from this carbinol to give the desired product. Alternatively, the Grignard addition product may be converted to the desired end product in a single step, for example by boiling with hydrochloric acid.  The cyclic ketones of formula (II) above and the tertiary carbinols of formula (III) above are stated to be novel compounds. The cyclic ketones of formula (II) may be prepared by internal condensation, in the presence of dehydrating or hydrogen halide-splitting agents, of compounds of the general formula: <FORM:0950717/C2/4> in which X and R1 are as defined above and Y is a hydroxyl radical or a halogen atom. Compounds of formula (VII) above in which Y is a hydroxyl radical may be prepared by reaction of o -bromo-o-tolyl bromide with the sodium salt of the appropriate phenol or thiophenol, whilst compounds in which Y is halogen may be obtained by standard methods, such as reaction with thionyl chloride, from the corresponding compounds in which Y is hydroxyl. o-(Phenoxymethyl)-benzoyl chloride, which is stated to be novel, is prepared from the corresponding acid by treatment with thionyl chloride. Examples are given. Specification 773,594 is referred to.
Patent GB-1244148-A (GB)
Title: Rotary kilns with cooler tubes
Inventor: JENSEN FLEMMING EDVIN
IPC: F27B7/40
Filed: 1970-07-29
Abstract: 1,244,148. Cooling cement clinker; discharging rotary kilns. F. L. SMIDTH & CO. A.S. 29 July, 1970, No. 36731/70. Addition to 1,137,246. Heading F4B. In a rotary cement kiln having cylindrical planetary cooler tubes 5 with trough-shaped helical conveyer flights 10 disposed between rings of scoops 11 and 12 as disclosed in Specification 1,137,246, dam rings 13, 14 and 15 are provided covering the cross-sectional area occupied by the conveyer flights to prevent a too rapid flow of material through the tube.
Patent GB-909549-A (GB)
Title: Ammunition fuzes
IPC: H02N2/18
Filed: 1960-10-26
Abstract: 909,549. Fuzes for self-propelled missiles. ANSTALT FUR DIE ENTWICKLUNG VON ERFINDUNGEN UND GEWERBLICHEN ANWENDUNGEN ENERGA. Oct. 26, 1960 [Nov. 2, 1959], No. 36812/60. Classes 9 (1) and 9 (2). A projectile having a hollow charge 2 and propellent charge 8, has a fuze system comprising a body 12 in which are housed a piezo-electric crystal 15, a condenser 13, a rectifier 14 of the semi-conductor diode type and a rotatable barrel 16 in which is embedded a primer 17. The barrel 16 is released and rotated during flight in manner known per se, i.e. by inertial set-back of a locking-member or prior manual withdrawal of a pin to free the barrel and a spring drive to rotate the barrel, to bring the primer 17 from the position shown in Fig. 1 to the armed position of Fig. 3. The piexo-electric crystal 15 suffers compression due to the propellent gases acting on a deformable wall 24 and the rectifier is so orientated that the crystal is short-circuited during compression. On decrease of pressure the rectifier acts as a highresistance and the potential difference between the poles 20, 21 of the crystal causes charging of the condenser 13. The condenser, one plate of which is connected to an outer cap 4 via the main body of the projectile and the other plate to an inner cap 5 via the primer 17, the metallic casing of a detonator 18 and a metallic cone 3, is discharged when the caps 4, 5 are brought into contact, the primer 17 thereby being fired. Use of such a fuze for various types of projectiles and land mines is also mentioned.
Patent GB-1157824-A (GB)
Title: Equipment for Use in Shaft Kilns
IPC: F27B1/00
Filed: 1966-08-17
Abstract: 1,157,824. Shaft kilns. VEITSCHER MAGNESITWERKE A.G. 17 Aug., 1966 [18 Aug., 1965], No. 36816/66. Heading F4B. In a shaft kiln, a burner sleeve 8 containing a burner 10 incorporates in a lateral extension 9 of the burner sleeve, an oxygen lance 11 and an observation tube 12, the axis of the oxygen lance being at an angle to the axis of the burner such that the oxygen jet issuing from the lance will impinge on the flame formed by the burner at a distance from the outlet of the burner. The mounting of the lance permits movement of the lance to vary the angle between its axis and that of the burner so that the said distance can be varied.
Patent GB-1043208-A (GB)
Title: Improvements in electrical ignition systems for internal combustion engines
IPC: F02P3/01
Filed: 1962-10-01
Abstract: 1,043,208. Ignition systems. C. BOWDEN. Sept. 24, 1963 [Oct. 1, 1962], No. 37049/62. Heading F1B. In a transistor oscillator ignition system for internal-combustion engines the existing ignition coil primary winding forms part of a tuned circuit providing the base drive current for a power transistor or transistors 1, 2, the remainder of the tuned circuit comprising the secondary winding L 3  of an auxiliary transformer together with a series capacitor 4 of such value that the whole of the tuned circuit is resonant at a frequency equal or closely equal to the critical frequency of the ignition coil secondary and its associated capacitance and the primary or energizing windings L 1 , L 2  or winding of the auxiliary transformer are or is the collector loads or load of the power transistors or power transistor the time constants of such primary windings or winding being such that optimum performance is achieved at the critical frequency of the ignition coil secondary. The duration of oscillator action may be adjustable by means of a variable resistor in series with a fixed resistor capacitor circuit.
Patent GB-368744-A (GB)
Title: Improvements in or relating to road vehicles
IPC: B62D21/18
Filed: 1930-12-09
Abstract: 368,744. Road vehicle frames. VENEZIAN, C. C., 40, Via Piffetti, Turin, Italy. Dec. 9, 1930, No. 37145. Convention date, Dec. 12, 1929. [Class 108 (ii).] In articulated vehicles of the kind in which the chassis is composed of front and rear units coupled by means of a centrally disposed longitudinal pivot member to allow relative transverse rocking of the units when travelling over irregular ground, means are provided to enable the units to be rigidly secured together when required. The chassis units 1, 2, each of which is mounted on a pair of wheels, are connected by a preferably tubular, central longitudinal pivot pin 8, the ends of which are mounted in sleeves 7, 10, attached to cross-bars 5, 11, respectively, whilst collars 12, 13, Fig. 5, are screwed on to threaded portions of the tube on opposite sides of sleeves 6, 9, which engage the abutting ends 1<1>, 21 of the chassis units. Preferably, an antifriction disc 14 enclosed by flanged discs 15, 16, is interposed between the units, whilst an antifriction sleeve 17 may be interposed between one or each of the sleeves 6, 9, and the adjacent collar 12 or 13. The means for rigidly connecting the units may comprise bars or plates 19 attached to one of the units by vertical hinges 18 and formed at their free ends with eyes or openings 20 whereby they may be retained in their out-of-use position on bolts 23 or may act as bridge pieces rigidly connecting the units when secured by nuts 22 on bolts 21. To facilitate positioning and to provide vertical rigidity, the bars 19 may be formed with apertures 24 to engage projections 25 or may operate between ribs or flanges on the sides of the chassis units.
Patent GB-851236-A (GB)
Title: Improvements relating to the mounting of hard components or parts in less hard ones
IPC: F16B7/00
Filed: 1957-11-29
Abstract: 851,236. Making torque spanners; brazing. DEAN, R. I. R. March 2, 1959 [Nov. 29, 1957], No. 37212/57. Classes 83 (2) and 83 (4). [Also in Group XXIII] In mounting a hard member 12 in a less hard member 11, the members having corresponding male and female screw-threads, the hard member is screwed into one face of the less hard member and then the two are subjected to a brazing operation by heat applied to the opposite face of the less hard member so that the screw threads are brazed together. A steel, aluminium or other relatively soft metal bodypart 10 of a torque spanner has an enlarged internally-threaded cylindrical boss 11 into which is screwed the externally-threaded enlarged flanged head 15 of a torque pin 12 of hardened steel. The pin has a squared end 13 to which a torque can be applied and a lever 14 connected to the indicating mechanism. The assembly is brazed by heat applied to the side of the pin remote from its squared end and the brazing metal penetrates into the threads and into grooves 17 formed at intervals across the threads of the head and/or hole. Specification 829,557 is referred to.