baber/WOPTO huggingface dataset:
Patent GB-874198-A (GB)
Title: 1-methyl-1-(1-phenyl-2-propyl)-hydrazine
Filed: 1959-09-08
Abstract: The invention comprises the compound 1-methyl-1-(1-phenyl-2-propyl)-hydrazine having the formula <FORM:0874198/IV (b)/1> and the preparation thereof by treating d-desoxyephedrine in aqueous acid medium with an alkali metal nitrite and reducing the product with lithium aluminium hydride.  The compound is a mono-amine oxidase inhibitor.
Patent GB-365160-A (GB)
Title: Improvements in magnetic cores for electrical apparatus
IPC: H01F1/16
Filed: 1930-10-14
Abstract: 365,160. Transformer &c. cores. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. Oct. 14, 1930, No. 30750. Convention date, Dec. 17, 1929. [Class 38 (ii).] In making transformer and like cores by coiling a strip of high permeability alloy requiring heat-treatment, the strip is wound without applying insulation between the convolutions, heat-treatment is then carried out, and finally insulation is effected by impregnation with a liquid insulating medium that subsequently hardens ; e.g. the completed core is immersed under vacuum conditions in liquefied paraffin, asphalt, varnish, phenol products, &c.
Patent GB-1025915-A (GB)
Title: New anthraquinone-carbazole dyestuffs and processes for their manufacture and application
IPC: C09B5/26
Filed: 1964-08-04
Abstract: The invention comprises vat dyes of the formula <FORM:1025915/C4-C5/1> wherein A is benzene or naphthalene, n is 1 or 2, one Z is H, the other is -NH-R1-NH-X in which R1 is the acyl residue of an at least dibasic carboxylic acid and X is a vattable anthraquinone residue, and wherein at least one -SO3H or -COOH is present in A or in another external aryl, and the residue <FORM:1025915/C4-C5/2> is bound in ortho-position to the same six-membered ring of the anthraquinone residue which are prepared by (a) sulphonating the corresponding compound free of -SO3H groups, (b) carbazolizing a compound <FORM:1025915/C4-C5/3> (c) carbazolizing and sulphonating simultaneously, (d) condensing in either sequence an acid chloride or anhydride of an acid HO-R1-OH with 1 mol of an amino-anthraquinone NH2-X and 1 mol of an appropriate amino -anthraquinone-carbazole, or (e) acylating a dye of Formula (I) free of -SO3H groups and containing a free -NH2 group in the residue X with an acid chloride containing -SO3H.  The dyes may be further substituted with halogen, alkyl, alkoxy, sulphato, thiosulphato, eliminable H atoms, epoxy residues, pyrimidines or triazines containing phenoxy, anilido, mercapto or ethyleneimine groups. Many suitable acids suitable for the residue R1 are specified including, isophthalic acid, azobenzene-dicarboxylic acid, azodiphenyl-dicarboxylic acid, furan-dicarboxylic acid, thiophen-dicarboxylic acid, and oxalic, succinic and glutaric acids. Sulphonation may be carried out with oleum and carbazolization with H2SO4 of at least 95% strength. Acylation may be carried out in an inert organic solvent or in aqueous medium in the presence of an acid-binding agent.  The dyes may be used to dye films of material or regenerated cellulose, cellulose ethers and esters, polyesters, polyamides, polyurethanes, polyacrylonitrile, wool and silk. Examples are given in which a large number of dyes are specified.
Patent GB-697343-A (GB)
Title: Improvements relating to hand-operated type-casting machines
IPC: B41B5/06
Filed: 1950-12-19
Abstract: 697,343. Type-making machines. WEBB, J. A. Dec. 17, 1951 [Dec. 19, 1950], No. 30967/50. Class 100(iii) In a hand-operated type-casting machine of the kind provided with a mould carried by a support, the mould having adjustable walls slidable over the mould base to vary the size of the mould to suit the matrix, adjacent relatively-slidable walls of the mould are held in close-guided engagement by a spring-loaded member carried by one wall and engaging a co-operating surface on the other wall, the surface being inclined and shaped so that its co-operation with the spring-loaded member resists any tendency of the wall carrying the member to move vertically away from the mould base. In a machine of the general construction described in Specification 656,711, four mould walls 71, 7<SP>2</SP>, 7<SP>3</SP>, 7<SP>4</SP>, Fig. 1, are provided, wall 7<SP>1</SP> being fixed to the base 3, wall 7<SP>2</SP> being secured to a bar 17 slidable along a channel 18 in the base, and walls 7<SP>3</SP>, 7<SP>4</SP> being slidable over the base. The sliding of the walls is controlled by levers 13, 20. Each wall is provided with a guide 11 to receive an adjacent wall, guide 11<SP>1</SP> receiving wall 7<SP>2</SP> and so on. Wall 7<SP>2</SP>, Figs. 1 and 4, is provided with a shoulder 8c and bevel 8a to accommodate a matrix. The guide 11<SP>1</SP> comprises a vertical flange 26 integral with wall 7<SP>1</SP> and shaped to co-operate with the inner face of wall 7<SP>2</SP>, and a bracket 28 secured to the flange 26 by a screw 29, being aligned by locating pegs. Bracket 28 carries a housing 34 in which a ball 33 is urged by a spring adjustable by a screw 38 against a groove 35b in a rib on the outer face of wall 7<SP>2</SP>, the inclined upper face of the groove acting on the ball to prevent upward movement of wall 7<SP>1</SP>, and to exert a restraining action on the sliding movement of wall 7<SP>2</SP> to avoid accidental displacement thereof. The remaining walls and guides are of similar construction. The spring arrangement on wall 7<SP>1</SP> is not essential, since that wall is fixed. According to the Provisional Specification, the adjustment of screws 38 may be limited by stops.
Patent GB-262774-A (GB)
Title: Manufacture of new dyestuffs
IPC: C09B3/32
Filed: 1926-12-07
Abstract: 262,774. Soc. of Chemical Industry in Basle. Dec. 8, 1925, [Convention date]. Dibenzanthrone dyes.-Violanthrone is chlorinated at temperatures above 80‹ C. in presence of indifferent diluents so as to introduce, three atoms of chlorine into the molecule. The products yield marine blue dyeings which are fast to water. According to an example chlorination is effected in nitrobenzene at 135-140‹ C. with gaseous chlorine. The chlorine may be replaced by agents which yield chlorine such as sulphur chlorides. Specification 22519/05 is referred to.
Patent GB-392156-A (GB)
Title: Improvements in or relating to electrical switches or circuitbreakers with arc-extinction by magnetic blow-out
IPC: H01H33/18
Filed: 1931-11-09
Abstract: 392,156. Switch contacts. ALLGEMEINE ELEKTRICIT€TS-GES., 2, Friedrich Karl-Ufer, Berlin. Nov. 9, 1931, No. 31060. Convention date, Nov. 7, 1930. [Class 38 (v).] Magnetic blow-outs employing a field of 20,000 Gauss have their poles c located close together to lessen the M.M.F. of the coils, and the contacts a, b are arranged on edge, the part f of the edge of the movable contact b serving as the contact surface. The field is arranged to act only at or near the roots of the arc and to be zero at a point well within the range of movement of the contactmember b. Owing to its intensity, the field increases the speed of travel of the arc roots and decreases the amount of burning-away of the contacts, the burning-away being uniform over the contact-surface. On that account, the contacts may be of silver, the currentdensity employed being larger than 5 amps mm<2>.
Patent GB-1534998-A (GB)
Title: Laser angular rate sensor
IPC: G01C19/66
Filed: 1977-07-26
Abstract: 1534998 Ring lasers HONEYWELL Inc 26 July 1977 [2 Aug 1976] 31228/77 Heading H1C A laser angular rate sensor comprising a ring laser cavity is provided with means for mitigating the problems caused by lock-in of the two contra-rotating laser beams. In essence, a signal proportional to the lock-in frequency is produced (using, e.g. a photocell to intercept one of the beams) and is then utilized in a servo loop which adjusts the positions of the two beams with respect to the cavity, Fig. 4 (not shown) in such a way as to reduce the lock-in frequency. The beam adjustment is preferably by servocontrolled movement of at least one of the resonator mirrors, Fig. 7 (not shown).
Patent GB-1190820-A (GB)
Title: Improvements in or relating to the Manufacture of Hydrogen Peroxide
Inventor: COINGT MICHEL
IPC: C01B15/023
Filed: 1967-07-06
Abstract: 1,190,820. Hydrogen peroxide. OXYSYNTHESE. 6 July, 1967, No. 31263/67. Heading C1A. In producing hydrogen peroxide by hydrogenating and oxidizing a solution of a quinone and the corresponding tetrahydroquinone in an organic solvent (e.g. 2-ethylanthraquinone and 2-ethyltetrahydroanthraquinone in a mixture of a cycloalkanol ester and a C 9  aromatic hydrocarbon), extracting hydrogen peroxide and recycling the solution, not less than 120 g./litre of degraded substances, which are not hydrogen peroxide generators, formed from the quinones are incorporated in the working solution. The quantity of tetrahydroquinone preferably exceeds that of the quinone and may be 80% or more of the total weight of the two substances. Hydrogenation to at least 80%, preferably 90-100%, of the theoretical maximum extent may be effected at 50-110‹ C., preferably 70‹ C.
Patent GB-333455-A (GB)
Title: Electric induction furnace
IPC: H05B6/24
Filed: 1929-10-15
Abstract: 333,455. Hirsch, Kupfer-und Messingwerke Akt.-Ges. Oct. 15, 1928, [Convention date]. Induction furnaces. - The crucible is provided at the bottom with a deep groove 3 the width of which is less than the depth of penetration of the eddy currents. External iron may be provided.
Patent GB-1473885-A (GB)
Title: Respiratory masks or helmets
IPC: A62B18/02
Filed: 1974-07-15
Abstract: 1473885 Respiratory appliances DRAGERWERK AG 15 July 1974 [14 July 1973] 31322/ 74 Heading A5T A respiratory face mask having a viewing window 13 and a demand valve 2 comprises a body 1 is provided with sealing lips 3, 4 encircling the breathing space, and a by-pass duct 8 formed in said body 1 and connecting the high-pressure side 6 of the valve 2 to between said sealing lips 3, 4 whereby in use breathing gas is supplied to the chamber 5 formed between said lips 3, 4 and the face of the wearer and escapes under said lips particularly in areas where the sealing is poor, thereby preventing leakage of ambient atmosphere into the mask. The valve 2 is detachable from the body 1 and has a throttle element 7 formed to connect with by-pass duct 8 in a manner such that the valve 2 may only be connected with body 1 after throttle 7 is connected with duct 8. In a second embodiment Fig. 2 (not shown), the sealing lips 3, 4 are replaced by an inflatable tube having outlet apertures directed toward window 13 to prevent misting. The invention may also take the form of a respiratory helmet sealed around the neck of a user by means of sealing lips bounding a chamber through which gas flows.
Patent GB-1119228-A (GB)
Title: Pharmaceutical compositions containing basic alkanols or salts thereof
IPC: A61K31/135
Filed: 1965-07-22
Abstract: Pharmaceutical and veterinary compositions and animal feed mixes and food premixes comprise a 1, 1-diphenyl-2-methyl-3-dialkylaminopropanol or acid addition salt thereof in association with a carrier.  The compositions are useful for inducing anorexia, inhibiting convulsive seizures and treating depressive states, and may also contain other active ingredients, e.g. phenobarbital, mephobarbital, diphenylhydantoin, trimethadione, imipramine, tranylcypromine, d-amphetamine and benzphetamine.
Patent GB-1207872-A (GB)
Title: Apparatus for the supply of dialysis liquid
IPC: C25B7/00
Filed: 1968-07-01
Abstract: 1,207,872. Dialysis apparatus. NYCOTRON A.S. 1 July, 1968 [4 July, 1967], No. 31373/68. Heading B1X. Apparatus for the supply of dialysis liquid to at least one dialysis membrane unit is characterized in that a de-aerating device is provided in the flow path for liquid which is to be supplied to the dialysis membrane unit or units and a venturi device is provided in the flow path for liquid which has been discharged from the dialysis membrane unit or units, the de-aerating device and the venturi device being interconnected by a suction line. The de-aerating device may be located in the supply liquid flow path between a device adapted to provide water at a thermostatically controlled temperature and a device wherein dialysis liquid concentrate is added to and mixed with the water. A storage tank for for dialysis liquid may be provided in the supply liquid flow path; a suction pump may be provided in the discharge liquid flow path at a location downstream of the venturi device. The storage tank may be provided with an overflow outlet connected to the discharge liquid flow path at a location downstream of the venturi device but upstream of the suction pump. As illustrated in the drawing, water supplied from tap 1 to water pressure reducing valve 2 passes both directly and indirectly via heating device 3 to thermostatically controlled mixing valve 4, from which valve water at a desired temperature passes to de-aerating device 5, suction pump 6 and venturi device 7, in which latter device the water is mixed with dialysis liquid concentrate supplied via conduit 8 and stop valve 9 from storage tank 10. Dialysis liquid of correct concentration passes to storage tank 11, which tank is provided with overflow 12, and is delivered via choke valve 13 to dialysis membrane unit 14 which is provided with connections 15, 15 for supply thereto and for discharge therefrom of dialysis liquid. Passage of dialysis liquid through the dialysis membrane unit is effected by suction pump 16. Provided in the conduit for conveying dialysis liquid discharged from the dialysis membrane unit is venturi device 17 which is connected by conduit 18 to the de-aerating device so that gas, for example air, is removed from the liquid supplied to the dialysis membrane unit and is entrained in the liquid discharged from the dialysis membrane unit thereafter to pass to drain 19 together with excess supply dialysis liquid which passes from the overflow via conduit 20. Prior to passing through the water pressure reducing valve, the supply water may pass through filters (not shown).
Patent GB-650523-A (GB)
Title: Improvements in apparatus for cleaning beet or like root crops
IPC: A01D17/00
Filed: 1948-12-04
Abstract: 650,523. Conveyers. RAE, J. S. Dec. 4, 1948, No. 31448. [Class 78 (i)] [Also in Group I] A conveyer for cleaning root-crops after lifting from the ground comprises a grid composed of two series of alternating parallel bars 1 and 2, having stepped upper faces 3, one series being oscillated by a crank at its upper end and being constrained to move longitudinally by guides 9, 10 at its lower end and the other series having a crank 6 at its lower end, out of phase with the first crank; and being similarly constrained at its upper end by guides 12, 13. The cranks are powerdriven by a chain 18 and sprockets 17. The guides comprise U-shaped brackets 9, 12, co-operating with yokes 11, 14 to which are secured eye-members 10, 13.
Patent GB-189142-A (GB)
Title: Improvements in the process of producing water-marked paper in paper-making machines
IPC: D21F1/44
Filed: 1922-11-17
Abstract: 189,142. Ebart, Geb. Nov. 19, 1921, [Convention date]. Compound paper; cheque, draft, and like paper; watermarking.-In the manufacture, in paper machines, of watermarked paper, strong and difficult to imitate, a layer of pulp, ground short, is superposed on a layer of long fibre pulp. The upper layer, which receives the watermark, may be of the same colour as that of the lower layer, or of a different colour, and may be narrower in which case the merging of the upper layer into the lower layer at the edges produces an effect difficult to imitate.
Patent GB-975066-A (GB)
Title: Improvements relating to electrical socket contacts
IPC: H01R43/16
Filed: 1962-08-16
Abstract: 975,066. Making electrical contacts. SEALECTRO CORPORATION, and S. T. DEAKIN. Aug. 13, 1963 [Aug. 16, 1962], No. 31480/62. Addition to 938,402. Heading B3A. A method of making electrical socket contacts of the form claimed in the parent Specification comprises blanking apertures 10, 11 in a metal strip, e.g. of beryllium copper to produce a plurality, e.g. three, of contact bars 12, forming a shallow convexly curved hump 14 transversely of the strip, bending the curved side walls upwardly to form a channel cross-section with the curved portions in or almost in contact with each other. The bars may be plated, e.g. with gold, whilst the strip is tensioned to cause the curved portions thereof to move apart and finally severing the bars from the strip. Tags may be provided by severing the bar from the strip at 20, 17, alternatively the form of the apertures 10 may be varied to produce tags extending from the side walls 18. The socket may be mounted in a throughway in a block of insulating material so that a plug may be inserted from either end. The tag may be soldered to a printed circuit. The strip may be hardened prior to plating.
Patent GB-226365-A (GB)
Title: Improvements in or relating to variable electric condensers, variometers and the like
Filed: 1923-12-15
Abstract: 226,365. Gaskell, W. H., and Holliday, A. F. Dec. 15, 1923. Wireless tuning-apparatus, adjustment devices for.-The shaft carrying the movable elements of a variable condenser, variometer, or the like is insulated from its operating spindle, all metallic elements lying between the insulating member and the handle of the operating spindle being earthed. As shown, the shaft 10 carrying the movable vanes 8 of a variable condenser is supported in an insulating member 17, which carries on its opposite side a spindle 18 on which is mounted a gear wheel 15 meshing with a smaller wheel 14 on the operating spindle 12. The spindles 18 and 12 are connected together by a strip of copper 21 having a turned-over portion 22 to which an earth wire mav be connected. An adjustable me:al plate 23 is mounted on the front of the panel 24 and metallically connected with the spindle 12 to avoid the effect of hand capacity, the plate 23 being provided with a mark cooperating with the scale 16 on the spindle 12. The ratio of the gearing 14, 15 is such that a complete revolution of the spindle 12 and scale 16 rotates the movable plates through 180‹.
Patent GB-985007-A (GB)
Title: Apparatus for joining the overlapping end of metal packaging strips
IPC: B65B13/30
Filed: 1963-08-09
Abstract: 985,007. Band tensioning devices. TITAN EISENWARENFABRIK G.m.b.H. Aug. 9, 1963 [Dec. 5, 1962], No. 31568/63. Heading F2G. [Also in Division B6] Means for tensioning baling straps in apparatus for sealing the overlapping ends of the baling straps (see Division B6) comprises a fixed holder 56, Fig. 7, provided with a strap detent 57 comprising toothing similar to saw teeth, and a reciprocating strap holder 58 provided with a strap detent 59 co-operating with detent 57. The strap presses between the detents 57 and 59 and is tensioned by reciprocating the holder 58 relative to the holder 56 when the leading end of the baling strap is held by clamping jaws 45, Fig. 6.
Patent GB-208626-A (GB)
Title: Improvements in or relating to the locking of nuts on bolts, studs or the like
IPC: F16B39/10
Filed: 1922-11-18
Abstract: 208,626. Comley, F. Nov. 18, 1922. No Patent granted (Sealing fee not paid). Locking nuts. - A nut f is locked to a bolt a by means of a washer c which has a flat side in the central hole which cooperates with a corresponding flat b on the bolt to prevent rotation of the washer. Tongues i on the washer are turned up to engage flats on the nut to lock it. In a modification, the washer is split and a resilient tongue engages radial teeth on the bearing face of the nut. Specification 203,204 is referred to. Reference has been directed by the Comptroller to Specifications 4007/90, 2431/99, 20131/02, 26592/02, 28594/07, 15475/12, and 3846/15.
Patent GB-1148192-A (GB)
Title: Improvements in voltage regulators
IPC: H02J7/24
Filed: 1966-07-14
Abstract: 1,148,192. Automatic voltage regulators. ROBERT BOSCH G.m.b.H. July 14, 1966 [July 15, 1965], No.31663/66. Heading G3R. A voltage regulator for a generator 1 having a rectified output comprises a silicon controlled rectifier 10 in series with the field winding 2 of the generator; a multi-vibrator including transistors 24, 25 responsive to the output voltage as monitored by a voltage divider 37, 38, 39 and a Zener diode 36; and a switching transistor 17 associated with a capacitor 13 connected to the control electrode 11 of the controlled rectifier 10. The arrangement is such that when the output voltage is below a value determined by the setting of potentiometer 37 the Zener diode 36 is blocked, whereby transistor 25 is non-conductive, transistor 24 conductive and transistor 17 non-conductive; the control electrode 11 is thus able to receive a potential derived from voltage divider 18, 15, 12 and rectifier 10 is thereby rendered conductive so that the field current builds up until the output voltage reaches the desired value. At this value Zener diode 36 switches to its conductive state, thus rendering transistor 25 conductive, transistor 24 non-conductive, and transistor 17 conductive; capacitor 13, which has been charged up by virtue of the voltage across resistor 15 is then provided with a discharge path including the collector/ emitter path of transistor 17 and the cathode/ control electrode path of the rectifier 10, resulting in the application of a control pulse to the control electrode 11, whereby the rectifier 10 is rendered non-conductive until the output voltage again falls below the desired value. The output voltage is thus maintained constant by automatic regulation of the field current of the generator 1.
Patent GB-305311-A (GB)
Title: Improvements in processes for the production of aluminium-silicon alloys
IPC: C22C21/02
Filed: 1927-11-24
Abstract: 305,311. Phillips, A., Baron, E., and Metropolitan-Vickers Electrical Co., Ltd. Nov. 24, 1927. Alloys. - Aluminium-silicon alloys containing 5-15 per cent of silicon are obtained in the modified condition by treating the molten alloy with a carbonate or bicarbonate of an alkali metal, preferably arhydrous sodium carbonate.
Patent GB-1053264-A (GB)
IPC: F01D25/18
Filed: 1965-07-26
Abstract: 1,053,264. Lubrication. ROLLS-ROYCE Ltd. July 26, 1965, No. 31856/65. Heading F2A. [Also in Division F1] A lubricating system supplying a predetermined quantity of lubricant to a gas turbine engine, comprises means operative only when the engine is running to supply compressed air to the lubricant dispensing chamber 11 to force the lubricant into the engine, and means operative only when the engine stops to refill the chamber 11 from a reservoir 12. Initially, as in Fig. 1 (not shown), supply chamber 16 and reservoir 12 are filled from connections 17, lubricant flowing from pipes 36, 35 giving visual indication that the reservoir is full. Lubricant pressure on diaphragms 15, 42 keeps valves 14, 41 closed. After disconnection of the lubricant sources as in Fig. 2 (not shown), valves 14, 41 spring open allowing lubricant flow through passage 13 to concentric compartments 21, 22 of chamber 11, and escape of air through pipe 40 to the top of the reservoir. Lubricant then drains from pipes 36, 35. When the engine is started, as in Fig. 3, the engine compressor supplies air through pipes 32, 33 and thence through pipes 35, 34. Air from pipe 35 pressurizes the lubricant in reservoir 12 and thus keeps valves 14 and 41 closed. Air from pipe 34 passes through chamber 37, pipe 38 and passage 13 and forces lubricant out of compartments 21, 22 and through respective conduits 25, 26 to front and rear bearings 27 and 28. When the compartments are empty, as in Fig. 4 (not shown), i.e. the predetermined quantities of lubricant have been supplied, compressed air passes to rear bearing 28 but float 30 in compartment 21 covers orifices 31 and allows valve 23 to close. When the engine stops, valves 14, 41 spring open and chamber 11 is refilled from the reservoir (Fig. 2, not shown).