baber/WOPTO huggingface dataset:
Patent GB-760319-A (GB)
Title: Manufacture of basic ª -aryloxybutyric acid esters
IPC: C07D295/088
Filed: 1953-02-09
Abstract: The invention comprises basic g -aryloxybutyric acid esters of the general formula <FORM:0760319/IV(b)/1> in which Ar represents a phenyl or naphthyl group or a phenyl nucleus fused on to a heterocyclic nucleus, or a halogen, alkyl, alkoxy or amino-substitution product of such a group or nucleus, and R1 and R2 each represent a methyl or ethyl group or together represent a divalent aliphatic radical forming a heterocyclic ring with the nitrogen atom, and water-soluble salts of such esters.  Such compounds are obtained by esterifying the corresponding substituted butyric acid in the form of its acid chloride, or re-esterifying a lower (1-4 C) alkyl ester, especially the ethyl ester, of such acid, with an amino - alcohol of the formula HO.CH2 CH2.NR1R2, and converting the resulting ester into a water-soluble salt thereof. Radicals specified for "Ar" are methyl-phenyl, methylisopropyl-phenyl, o-, m- or p-halogenphenyl, a - or b -naphthyl, methoxyphenyl, o-, m- or p-aminophenyl, m-dimethylaminophenyl, and 8-quinolyl.  The group -NR1R2 may be dimethyl- or diethylamino, piperidino, or hexamethylene-imino.  In examples: (1) g -phenoxy-butyric acid chloride is reacted with (a) hexamethylen-imino-ethanol and (b) dimethylamino-ethanol, to form the corresponding esters; (2) g -(p-chlorophenoxy)-butyric acid ethyl ester and diethylaminoethanol are reacted in the presence of sodium to form g -(p-chlorophenoxy-butyric acid diethylaminoethylester.  In a generally similar manner there are prepared (3) g -(b -naphthoxy)-butyric acid diethylor dimethylaminoethyl ester; (4) g -(2-isopropyl-5-methyl-phenoxy)-butyric acid diethylaminoethyl ester; (5) g -(a -naphthoxy)-butyric acid diethylaminoethyl ester; (6) g -(m-dimethylaminophenoxy)-butyric acid diethylaminoethyl ester; (7) g -(2-methoxy-phenoxy)-butyric acid diethylaminoethyl ester; (8) g -(8-quinolyl-oxy)-butyric acid diethylaminoethyl ester.  Butyric acids.  g -(m-Dimethylamino-phenoxy)-butyric acid is prepared by reacting m-dimethylaminophenol with g -butyrolactone. g  - (8 - quinolyloxy) - butyric acid is prepared by reacting 8-oxy-quinoline with g -butyrolactone.
Patent GB-123599-A (GB)
Title: Improvements in or relating to Plansifters.
Inventor: SUTTON ARTHUR ERNEST
Filed: 1918-03-02
Abstract: 123,599. Sutton, A. E. March 2, 1918. Sieves with compound motion.-The silk of a plansifter is secured on a detachable frame B, of aluminium or other material. that is secured to the main sieve frame A by screws E. The detachable frame is formed with a deep groove around its bottom; a stretched silk F is applied thereto, and a rubber or other fillet C is pressed down with the silk into the groove, wherein it is retained by a cover strip and screws.
Patent GB-1451003-A (GB)
Title: Process for the performance of high pressure syntheses catalyst bed for such processes and method for preparing same
IPC: B01J8/04
Filed: 1974-01-25
Abstract: 1451003 Catalytic bed structure for ammonia synthesis CHEMIE LINZ AG 25 Jan 1974 [19 Feb 1973] 03690/74 Heading B1F [Also in Division C1] A catalyst bed of crushed, fused iron oxide for use in catalytic high pressure synthesis reactions, e.g. conversion of nitrogen and hydrogen to ammonia, comprises a cylindrical or annular chamber having gas tight side walls but gas permeable end walls and containing predominantly or entirely iron oxide particles whereof the spatial dimensions include one length which is at least twice the length of at least one of the two other spatial dimensions and at least one of the latter is less than 5 mm., the particles being arranged with their longest spatial dimension substantially parallel to the axis of the chamber. The particles may be of needle, prismatic, truncated pyramid, truncated cone, disc or plate-like shape. A plurality of the catalyst beds may be arranged in series in the direction of flow of the reaction gas. The particles may be aligned by application of a magnetic field.
Patent GB-988572-A (GB)
Title: Improvements relating to nozzles for spraying fusible materials
Inventor: KUDELKA VITEZSLAV
IPC: B05B7/08
Filed: 1961-02-01
Abstract: 988,572. Spraying fusible materials. F. W. BERK & CO. Ltd. Feb. 1, 1962 [Feb. 1, 1961], No. 3817/61.. Heading B2F. The nozzle of an apparatus for spraying molten pulverulent material comprises a barrel 1, Figs. 1 to 4, combustible gas passages 4, and passages 3 for a conveying gas (e.g. air) and powder. Fig. 1 shows the inlet end and Fig. 2 the outlet end of the nozzle while Fig. 3 is a section through A-A and Fig. 4 a section through B-B on Fig. 2. The external circumferential surface of the barrel may be suitably slotted to permit air cooling of the nozzle.
Patent GB-339190-A (GB)
Title: Improvements relating to liquid fuel, gas and like burners
IPC: F23D11/00
Filed: 1930-02-05
Abstract: 339,190. Collins, T. B. Feb. 5, 1930. Multiple-way valves.-In a liquid fuel, gas, or like burner, the fuel supply to the nozzle a<1> and the air, steam, or gas supply to a surrounding nozzle bare controlled by valves c<1>, d<1> geared together or operatively connected within a casing f. The valve d<1> is provided with an inlet port d<6>, outlet ports d' registering with apertures d<5> in a chamber d communicating with the nozzle b<1>, and an outlet port d<8> registering with an aperture in the chamber d leading to the atmosphere, so that, as the fuel and air supplies to the burner are simultaneously diminished, the escape of air to the atmosphere is increased and the consumption of air is maintained constant. Adjustment of the burner does not therefore affect the pressure of the air supply to other burners fed from the same source. The spindles of the valves c<1>, d<1> carry pinions c<2>, d3 which engage a pinion e<1> on a shaft e operable by a hand wheel e<2>. Alternatively, the pinions c<2>, d<3> mesh together and the handwheel is mounted directly on one of the valve spindles.
Patent GB-163096-A (GB)
Title: Improvements in and connected with safety razors
IPC: B26B21/16
Filed: 1920-02-09
Abstract: 163,096. Watt, J. A. D. Feb. 9, 1920. Razors, safety, in which the blade is capable of being stropped without removal from the frame and is adjustable relatively to the guard in a direction at right-angles to the handle. The bladecarrier and guard are coupled by mechanical means by which the adjustment is obtained. The blade-carrier 7 is slidable along ribs on the guard-plate 4 and has a threaded portion 7a engaged by a headed screw 13 having a graduated collar 12 located in an arcuate slot 11 at the rear of the plate 4. The graduations of the collar can be read against a pointer on the top of the carrier to give a visual index of the adjustment obtained. A stud 6 on the carrier passes through a slot 5 in the guard and is engaged by the handle 9 to lock the parts in the adjusted position.
Patent GB-942521-A (GB)
Title: Apparatus for, and method of, producing corrected color separations
IPC: H04N1/60
Filed: 1962-02-01
Abstract: 942,521. Copying by scanning. FAIRCHILD CAMERA & INSTRUMENT CORPORATION. Feb. 1, 1962 [Feb. 9, 1961], No. 3882/62. Heading H4F. An uncorrected colour separation 11 comprising either a coloured positive proof of an original colour separation transparency or the coloured transparency itself and a positive proof 13 of a corrected colour separation are scanned by photo-electric devices 16, 17 to derive signals which are combined differentially in a subtracter circuit 27, the resulting signal being applied to modulate a light source to expose a photo-sensitive record. The photosensitive record may comprise only a sheet of photo-sensitive film, in which case there is produced a masking record for use in conjunction with the original uncorrected colour separation. Alternatively, the photo-sensitive film may be combined with and arranged for exposure through an uncorrected colour-separation record, in which case a corrected colour record is produced directly. By appropriate selection of the uncorrected record, the corrected record may be either a positive or a negative. The invention is stated to be of use in permitting uncorrected records to be corrected so as to match proofs which have been accepted as satisfactory. According to a feature of the invention, the photo-sensitive devices are provided with filters (carried by turrets 18 and 19) the light transmission characteristics of which are substantially complementary to the colours of separations 11 and 13 so that the colouring in the separations appears black to the photoelectric cells. A meter 30 indicates the instantaneous amplitude of the correction signal. Potentiometers 28, 29 permit calibration of the apparatus in accordance with the characteristics of separations 11 and 13. Specification 891,978 is referred to in connection with details of subtracter circuit 27.
Patent GB-519923-A (GB)
Title: Improvements in or relating to the manufacture of oil and cake from meal
IPC: B30B9/12
Filed: 1938-09-03
Abstract: 519,923. Presses for separating liquids from solids. SIZER, A. W. Sept, 3, 1938, No. 3936/40. Divided out of 519,876. [Class 46] A worm press for extracting oil has the outlet end of the press chamber fitted with an axiallyadjustable conical element 8 co-operating with a castellated ring 7 so that the material is extruded in the form of bars or ribbons. Means may be provided for varying the cross-sectional area of the openings in the ring 7, for instance fingers of taper section engaging in the openings and mounted so as to be capable of axial movement relatively to the ring. A knife rotating with worm shaft may be provided to cut up the bars. The element 8 may have teeth or a thread 10, as described in Specification 519,876, and may be driven at the same speed as the worm 4 or at a different speed. It may have the narrow end directed inwardly instead of outwardly. The outlet may have a flared mouth 11. A worm section of different pitch from that of the main worm may be arranged between the main worm and the element 8.
Patent GB-297667-A (GB)
Title: Improvements in and relating to the manufacture of maleic acid and maleic anhydride
IPC: C07C51/31
Filed: 1928-02-08
Abstract: 297,667. Boehringer, A., (trading as Boehringer Sohn, C. H.). Sept. 24, 1927, [Convention date]. Addition to 285,426. Maleic acid; maleic anhydride. - In the production of maleic acid and maleic anhydride by the catalytic oxidation of furane or its derivatives with oxygen or air as described in the parent Specification, the quantity of oxygen or air employed is a considerable excess such as 20-100 times the theoretical amount. The substance to be oxidized, such as furfural can be vaporized and mixed with the oxidizing gas, or steam may be passed through furfural heated to a suitable temperature and then led into the oxidizing gas, or the furfural may be atomized by air or steam in a space through which hot air is passed. The process may be effected at 50-250‹ C. at ordinary, increased, or reduced pressure, In an example 60 grams of furfural are vaporized in 4 hours and mixed with a current of air passing at 1.5 litres per second, the mixture being passed over vanadic acid on pumice stone at 180‹ C. Specifications 291,419 and 296,071 are referred to.
Patent GB-905553-A (GB)
Title: Improvements in or relating to the production of semi-conductor devices
IPC: H01L21/00
Filed: 1959-02-04
Abstract: 905,553. Semi-conductor devices. SIEMENSSCHUCKERTWERKE A.G. Feb. 4, 1959 [Feb. 4, 1958], No. 4002/59. Class 37. Gold, or an alloy of gold, is alloyed to a monocrystalline silicon body to produce a PN junction, and boron is employed so that it penetrates the liquid alloy of silicon and gold. In Fig. 1 amorphous boron powder 5 is sprinkled or brushed on to a gold foil 4 on a silicon disc 2 which is disposed on a gold-antimony foil 3. The assembly is then heated during the application of mechanical pressure, in an inert atmosphere or while embedded in a graphite, magnesium oxide or other neutral powder, to form a PN junction in the silicon body. Heating is preferably to between 400 and 500 C., and a boron compound such as boric acid may be used in place of elemental boron.
Patent GB-348144-A (GB)
Title: Improvements in and relating to grabs
IPC: B66C3/08
Filed: 1930-02-06
Abstract: 348,144. Grab-buckets. BARNARD, D. J., 8, Strathfield Gardens, Barking, London. Feb. 6, 1930, No. 4060. Addition to 324,736, [Class 78 (iv), Loading &c.]. [Class 78 (iv).] The grab described in the parent Specification has spreader links pivoted to the cross-beam and forming a toggle linkage to maintain the scoops in the open position, dashpots being provided coacting with the cross-beam. The spreader links 8 are pivoted at one end to the spreader arms 2 and at the other end to the cross-beam 13. When the grab is drawn upwards to open the scoops the cross-beam rises and the spreader links pass beyond the dead centre so forming a toggle joint and supporting the cross-beam. The final upward movement of the cross-beam causes projections 22 thereon to strike plates 25 on dashpot pistons 24 to cushion the movement, the dashpots also pushing the cross-beam downwards during the closing movement. The dashpots comprise a piston 24, Fig. 6, working in a cylinder 23 mounted in a socket 27 secured by lugs 28 to the cross-bars 3. In a modification the dasbpot has two pistons 30, Fig. 7, working in cylinders 27, a bottom plate 32 connecting the pistons, and a central spring-controlled pin 29.
Patent GB-1491306-A (GB)
Title: Method for automatic determination of dip of formations traversed by a borehole
IPC: E21B47/026
Filed: 1975-01-30
Abstract: 1491306 Data processing SCHLUMBERGER Ltd 30 Jan 1975 [30 Jan 1974] 4074/75 Heading G4A Signals obtained from a borehole dipmeter are machine processed to identify pairs of points on two different curves which may concern the same geological feature, to compute the set of all possible dip values which could correspond to each pair of points identified and to identify the dip value common to the largest number of sets, this value being taken as representing the most constant dip for the region of the borehole concerned. The processing method allows useful data to be obtained in situations where there is difficulty in accurately determining dip planes owing, for example, to poor contact between some of the dipmeter pads with the borehole wall or some other defect. Identification of pairs of points which may relate to the same feature may be carried out as described in Specification 1,417,741. In one embodiment four dips are calculated from an identified pair of points A, B on two curves (I, II) which have a relative shift of D. The dips are defined by planes AEM, AEN and AFM, AFN corresponding to a shift D-d and D+d between A and B, d being the accuracy with which D is measured and points M and N lying on a third curve (III) at a relatively large shift above and below A. The points of intersection R1-R4 of vectors V1-V4, normal to these planes, with a reference plane P are calculated, the vectors having an origin w on the mean axis of the borehole at a fixed distance H from the reference plane. The equations of the lines R1, R2 and R3, R4 are then determined and the band between the lines represents the set of all dip values which may correspond to the points A, B. The process is repeated for other pairs of points on different curves which may represent the same feature to obtain a plurality of intersecting bands in the reference plane P. The set of dip values represented by each band may be weighted in dependence on the width of the band and the degree of correlation between the corresponding pair of points, the weight thus assigned to each band being attributed to all the unit areas of plane P which the band covers and the required most common dip value being identified as belonging to the unit area with the highest resultant weight, provided this weight is sufficiently greater than the mean weight of the other unit areas. In another embodiment, for each pair of points A, B the corresponding band of dip values delineated by lines R1, R2 and R3, R4 is determined by the intersection with the plane P of two planes respectively perpendicular to lines AE, AF and passing through the point w.
Patent GB-396779-A (GB)
Title: Treating dry fire extinguishing powder to prevent caking
IPC: A62D1/00
Filed: 1933-02-10
Abstract: Caking of dry fire-extinguishing powder consisting mainly or wholly of sodium bicarbonate is hindered by treating the powder with a soap solution and then drying and sieving it.  The solution may be incorporated uniformly with the powder by spraying.  If the extinguishing powder comprises, in addition to the bicarbonate, a crystalline salt or salts, such as borax or sodium carbonate, the ingredients may be treated separately or after mixing.
Patent GB-1505202-A (GB)
Title: Three axle railway bogie
IPC: B61F3/10
Filed: 1976-02-03
Abstract: 1505202 Rail vehicle bogies USINES DE BRAINE-LE-COMTE SA 3 Feb 1976 [31 Dec 1975] 04240/76 Addition to 1482497 Heading B7L A three-axle railway bogie, as claimed in Claim 1 of the parent Specification, is provided with end cross-ties 4, 5, intermediate cross-ties 7, 8, and middle cross-tie 16 which is generally H-shaped when seen in plan view and has arm members 18, 19, 20 and 21 which terminate in joint elements 22, 23, 24 and 25 connected by horizontal shafts to bushings in the intermediate cross-ties 4, 5. The central member of the H is provided with a centre plate 9.
Patent GB-1058560-A (GB)
Title: Improvements in and relating to golf clubs
IPC: A63B53/04
Filed: 1965-02-01
Abstract: The head of a golf club comprises one or more holes extending from the striking face thereof, each of said holes being open at each end.
Patent GB-1334508-A (GB)
Title: Polarity hold latch
IPC: H03K3/037
Filed: 1972-01-31
Abstract: 1334508 Semi-conductor bi-stable circuits INTERNATIONAL BUSINESS MACHINES CORP 31 Jan 1972 [4 March 1971] 4351/72 Heading H3T [Also in Division G4] A bi-stable latch 1 with regenerative feedback from output 9 to AND gate 3 has an enable ("set-reset") input E and has further feedback 10 from output 9 to the data input 7 whereby the teerminal 7 serves as a combined inputoutput terminal. Information from AND gate 12 is thus stored at 7 until another gate 15 applies it to an output line under the control of a signal at 16. The latch 1 comprises AND gates 2, 3 and OR gate 4 which respond to negative (1) logic signals. When E goes to 0, AND gate 3 is disabled, but the SET line goes negative and AND-2 gives a negative output if a data signal of 1 is received at 7. The OR-4 thus gives a negative output at 9 which is fed to one input of AND-3. A second input of AND-3 is a D.C. reset F at 8 and is normally negative. Thus when E goes negative again, the output 9 is latched at 1 by AND-3, and OR-4, the delay in inverter 6 maintaining the SET input negative until latching is complete. Provided a control pulse C at 11 is negative, the AND-10 applies the signal (1) at 9 to the input 7 to be available as an output. The AND-10 enables the feedback to 7 to be broken when C goes positive to render the latch responsive to a change in data D when the next positive E pulse arrives. The E pulse may itself serve to replace the C pulse (Fig. 3, not shown). The control C msy be dispensed with, and AND-10 replaced by an amplifier (23, Fig. 5, not shown), provided that the inverter circuit (20, 21, 22) between E and AND gate 2 has a longer delay than the amplifier. This ensures that both AND's 2, 3 are disabled by 0 inputs on the SET, RESET lines for long enough to ensure that a 8 level is applied from the amplifier to input 7 whereby the data input D may exert an overriding influence (a 1 at 7 overriding a 0).
Patent GB-158892-A (GB)
Title: Improvements in and relating to clocks for advertising purposes
IPC: G09F23/16
Filed: 1921-02-07
Abstract: 158,892. Schmidt, M. J. Feb. 7, 1920, [Convention date]. Dials and hands.-The space in the centre of a clock face is left free for advertisements f by the hands c, e being so cranked that only their ends show in front of an annular dial.
Patent GB-815856-A (GB)
Title: 2-amino-4-n-(3-mercuripropyl) amino-5-triazine compounds
Inventor: SHAPIRO SEYMOUR LESTER
IPC: C07F3/10
Filed: 1957-02-11
Abstract: The invention comprises 2-amino-4-N-(31-mercuripropyl) amino-s-triazines of formula <FORM:0815856/IV (b)/1> in which R1, R2 and R3 each represent hydrogen or a C1-C3 alkyl group and X represents halogen, particularly chlorine, or a group such as hydroxyl, acetoxy, ascorbyl, theophyllino or its halogen substitution products, or carbonylsalicylamide or 8-methyl-carbonylsalicylamide. They may be prepared by reacting a 2-amino-4-N-allyl (or methallyl) amino-s-triazine with mercuric acetate in a C1-C3 monohydric alcohol or a water medium.  The acetate so produced may be reacted with sodium chloride or hydroxide to give compounds in which X is chloride or hydroxide.  The products are potent diuretics (see Group VI).  In an example, 2-amino - 4 - N - allylamino - s -triazine is reacted with mercuric acetate in methanol to give 2-amino - 4 - N - (31 - acetoxymercuri - 21 - methoxypropyl) amino-s-triazine.  Other compounds prepared include the 31-chloromercuri-21-methoxypropyl -, 31 - hydroxymercuri - 21 - methoxypropyl -, 31 - (7 - theophyllino) mercuri - 21 - methoxypropyl -, 31 - fluoromercuri - 21 - methoxypropyl -, 31 - ascorbylmercuri - 21 - methoxypropyl -, 31 - acetoxymercuri - 21 - methyl - 21 - methoxypropyl -, 31 - hydroxymercuri - 21 - methyl - 21 - methoxypropyl -, 31 - fluoromercuri - 21 - methyl - 21 - methoxypropyl -, 31 - (7 - theophyllino) mercuri - 21 - methyl - 21 - methoxypropyl -, 31 - hydroxymercuri - 21 - ethoxypropyl -, 31 - hydroxymercuri - 21 - propoxypropyl -, 31 - (7 - theophyllino) - mercuri - 21 - propoxypropyl -, 31 - bromomercuri - 21 - propoxypropyl -, 31 - (3 - 8 - methylcarbonylsalicylamido) mercuri - 21 - methoxypropyl -, and the 31 - acetoxymercuri - 21 - hydroxypropyl derivatives and also the 31-acetoxymercuri-21-methoxypropylamino-6-methyl derivative.  2 - Amino - 4 - N - methallylamino - s - triazine is prepared by reacting methallylamine hydrochloride with dicyandiamide and treating the product [NH2C(:NH)NHC(:NH)NH.methallyl. hydrochloride] with sodium methoxide and ethylformate.  2 - Amino - 4 - N - allylamino - 6 - methyl - s - triazine is prepared by reacting allylbiguanide and acetyl chloride in alkaline acetonitrile.ALSO:2 - Amino - 4 - N - (31 - mercuripropyl)-amino-s-triazines of formula:  <FORM:0815856/VI/1> where R1, R2 and R3 each represent hydrogen or a C1-C3 alkyl group and X represents halogen, particularly chlorine, or a group such as hydroxyl, acetoxy, ascorbyl, theophyllino or its halogen substitution products or carbonylsalicylamide or 8-methylcarbonylsalicylamide are used as diurectics, dissolved in water for intravenous injection or tabletted with excipients such as lactose, sucrose, starch, pregelatinized starch, gum arabic or starch conversion syrup solids for oral use.
Patent GB-1091142-A (GB)
Title: Threads and fibres from polyamides
Inventor: HAGEDORN OTTO UNGER AM
IPC: C08G69/42
Filed: 1965-02-03
Abstract: 0.1 to 20% (by weight of the total reaction components) of a mixture of equivalent quantities of a diamine <FORM:1091142/C3/1> and a diacid HOOC-(CH2)yCOOH, where M is H or alkali metal; x is 0, 1, 2 or 3; and y is 4 to 9, is incorporated with an aminocarboxylic acid, a lactam or a salt of a diamine and dicarboxylic acid in the preparation of a polyamide. Various polyamide-forming materials are specified.  It is suggested that the products are polycarbonamides rather than sulphonamides. The polymers may be melt-spun into filaments.