baber/WOPTO huggingface dataset:
Patent GB-950165-A (GB)
Title: A method of producing nordstrandite
Inventor: HAUSCHILD ULRICH
IPC: C01F7/428
Filed: 1962-07-18
Abstract: Aluminium hydroxide of the type known as Norstrandrite is produced by contacting metallic aluminium, preferably finely divided with an aqueous solution of an alkaline diamine at a temperature below 80 DEG C.  Alkylene diamines specified are ethylene and propylene diamines in concentrations below 40% by weight.  The product may be freed from adventitious other forms of aluminium hydroxide by acid treatment. Drying may be effected physically or by dehydration with a watermiscible solvent.  The process may be performed batchwise or continuously.  The alkylene diamine acting only in a catalytic rate.
Patent GB-1180104-A (GB)
Title: Method of Producing L-Lysine.
IPC: C12P13/08
Filed: 1967-06-15
Abstract: 1,180,104. Production of L-lysine. AJINOMOTO CO. Inc. 15 June, 1967 [15 June, 1966], No. 27685/67. Heading C2C. L-Lysine is obtained by (a) culturing an auxotrophic mutant strain of Brevibacterium lactofermentum No. 2256 (ATCC No. 13869) in an aqueous nutrient medium under aerobic conditions, maintaining the pH of the culture medium with the range 5 to 9 until a substantial amount of L-lysine is accumulated in the medium, (1) the strain requiring threonine, isoleucine and valine for the growth thereof, and (2) the medium including assimilable carbon and nitrogen sources, an organic nutrient, essential inorganic ions, threonine, isoleucine and valine; and (b) recovering the L-lysine from the medium. The threonine, isoleucine and valine are suitably present in the medium in amounts of 10-60 mg/dl., 5-20 mg/dl. and 10-40 mg/dl. respectively, and methionine, preferably in a concentration in the medium of 100-400 mg/dl., is also advantageously present. A specific mutant strain described is Brevibacterium lactofermentum No. 2256-213 (ATCC No. 21086), which may be obtained from the parent strain by exposing vegetative cells or spores thereof to U.V. light, X-rays or #-rays and by screening the irradiated material for its response to threonine, isoleucine and valine, or by contacting the parent strain with a sodium nitrite solution.
Patent GB-1361289-A (GB)
Title: Bandage for administering drugs
IPC: A61K9/70
Filed: 1971-06-14
Abstract: 1361289 Bandage for administering drugs ALZA CORP 14 June 1971 27693/71 Heading A5R A bandage for continuously administering controlled quantities of systemically active drugs through the skin or oral mucosa comprises a laminate of a backing member which defines one face of the bandage, a pressuresensitive adhesive surface which defines the other face of the bandage and between the two faces at least one reservoir including the drug and having a wall member which controls the rate of flow of drug to the skin. The reservoir or reservoirs may be a walled container, a solid matrix throughout which the drug is distributed or a plurality of microcapsules distributed throughout the adhesive which may comprise a matrix. The drug formulation which may be a solid or a solution in a pharmacologically acceptable solvent, diffuses through the wall member provided by the container, microcapsules or the matrix, and through the adhesive to be absorbed by the body. The thickness and nature of the wall member through which the drug diffuses controls the rate at which the drug reaches the skin. The wall member may comprise one or more. The membrane or microcapsule coating or matrix may be of a silicone rubber or a hydrophilic polymer of an ester of an olefinic acid. Numerous examples of substances suitable for use as the drug, the solvent for the drug, the backing member and the adhesive are given. The adhesive may cover all the body-contacting surface of the bandage or may be placed only around the periphery of that surface. The backing member may be coated with a material of low adhesion to the pressure-senstive adhesive, so that the bandage can be rolled up. Reference has been directed by the comptroller to Specification 998794.
Patent GB-519686-A (GB)
Title: Improvements in revolving doors
IPC: E06B3/90
Filed: 1938-09-23
Abstract: 519,686. Revolving doors. SHEPHERDSON, H. Sept. 23, 1938, No. 27718. [Class 20 (iii)] The vanes A of a revolving door are pivoted to the central pillar by spring-loaded hinges C which normally retain the vanes in radial positions but yield when abnormal pressure is applied to the vanes. As shown, the end d<1> of a telescopic bolt D is normally forced into a recess b' in a filling c<1> on the pillar by means of a spring d. Under abnormal conditions, as when opposing pressures are applied to two or more of the vanes, the spring d is overcome and the bolt-end d<1> rides out of the recess b' to permit folding of the vanes into the collapsed position shown in Fig. 5. Outward displacement of the bolt-end d<1> is limited by the abutment of a lug d<3> on the latter with the end of the casting c. To retract the bolt for re-setting of the vane, a key-operated latch c' may be fitted to co-operate with a pin d<9> on the bolt.
Patent GB-679801-A (GB)
Title: Improvements in or relating to recording electromagnetic oscillographs
IPC: G01R5/14
Filed: 1950-11-14
Abstract: 679,801. Oscillographs. COMPAGNIE POUR LA FABRICATION DES COMPTEURS ET MATERIEL D'USINES A GAZ. Nov. 14, 1950 [Dec. 14, 1949], No. 27810/50. Class 37. A recording electromagnetic oscillograph has the movable part constituted by a soft iron blade 10 in the form of a parallelepipedon the bases of which are of lozenge shape perpendicular to the sides. The sides are parallel to the terminal surfaces of two fixed pole-pieces 15, 151 on which are wound the energizing windings 16, 16<SP>1</SP>, 17, 171. The pole-pieces 15, 151 are formed from U-shaped laminations and are in contact with soft iron members 14, 14<SP>1</SP> attached to the poles of a permanent magnet 13. The movable blade 10 is mounted on a torsion bar 11 of hard metal such as carbon hardened steel, which is of cruciform section except for the ends 20, 20<SP>1</SP>, Fig. 3, which are cylindrical. The end 20 is forced into a central bore 19 in the movable blade 10 so that more than haif the working part.of the bar is inside the blade. The end 201 is forced into an aperture in a brass or bronze supporting member 12, to which are fixed the pole-pieces 15, 15<SP>1</SP>. Attached to the movable blade 10 by screws 22 is a triangular needle 21 of light metal carrying at its end a sharp point 23 of diamond, sapphire, or metal carbide which records on a continuously moving blackened film. A number of moving parts, each fitted with a style, may be arranged with the styles side by side so as to record on a single moving film. The movable blade is damped by an outside shunt connected in parallel with the windings.
Patent GB-1144264-A (GB)
Title: Diazo compound for lithographic plates
IPC: G03F7/022
Filed: 1967-06-16
Abstract: 1,144,264. Naphthalenesulphonamide derivative. SUMNER WILLIAMS Inc. 16 June, 1967 [12 Dec., 1966], No. 27862/67. Heading C2C. [Also in Division G2] The invention comprises the compound of formula which is prepared by reacting together the appropriately substituted naphthalenesulphonyl chloride and aminocarbazole.
Patent GB-738932-A (GB)
Title: A method and a device for cutting bitumens
IPC: C10C3/18
Filed: 1953-10-09
Abstract: 738,932. Cutting bitumen into pieces. ETABLISSEMENTS M. COLLET & FILS, SOC. A R.L. Oct. 9, 1953 [Oct. 13, 1952], No.27863/53. Class 87 (2). In a process for cutting bitumen a layer about 15 centimetres thick is cast at a temperature of about 240‹ C. on a powder bed 18 (e.g. talcum powder) in a pit 1; it is then marked and, when hard enough to be walked upon, cut by tools 20, 21 Fig. 2, comprising blades 13, guided by handle-bars 12, which are heated to a temperature of 180-190‹ C. as by electrical resistance heating means 25, Fig. 4. The tools are drawn by a winch 24 through cables 17 and pulleys 22 positioned by ties 23 in the-concrete sides 2, 3 of the pit 1. The other walls 4, 5 are of metal and may be moved about horizontal hinges 6 with ground anchorings 7, being secured, when upright, by collapsible gussets 8. In a modification, the walls may all be of metal, Fig. 2. The cutting tool may comprise a number of parallel knives.
Patent GB-954434-A (GB)
Title: Reciprocating pumps
Inventor: BOTTOMS HARRY SIMISTER
IPC: F04B1/04
Filed: 1960-08-12
Abstract: 954,434. Reciprocating pumps. JOSEPH LUCAS (INDUSTRIES) Ltd. July 24, 1961 [Aug: 12, 1960], No. 27948/60. Heading F1A. The cylindrical internal surface of a pump body 5 is eccentric with respect to the rotor 6 and each pump piston 17 has a stem 16 in contact with the internal surface of the pump body 5. An arcuate inlet port 9 and an arcuate outlet port 10 are provided in the body 5 at one end of the rotor and the outer ends of the cylinders 15 have ports communicating with the ports 9 and 10. The mass of the pistons is such that above a pre-determined speed, the stems 16 are held in contact with the body 5. Preferably, outlet and inlet ports are provided on either side of the rotor. In an alternative form, the piston comprises a light outer portion including the stem 16 and a relatively heavy inner portion with a spring interposed between both portions.
Patent GB-174310-A (GB)
Title: Improvements in repeating firearms
IPC: F41A3/32
Filed: 1920-10-15
Abstract: 174,310. Marks, E. C. R., (Fabrique Nationale d'Armes de Guerre Soc. Anon.). Oct. 15, 1920. Breech actions, sliding breech-block; magazines.-Relates to repeating fire-arms in which the breech mechanism is operated by a reciprocatable tubular magazine arranged below the barrel, and consists (1) in a breech-block slidable within limits on an action-slide fixed to the magazine, and adapted to be rocked laterally into position to lock it to the breech casing; and (2) in adapting the firing-pin to be actuated positively to the rear through a short distance bv the action-slide at the commencement of its rearward movement. 'In the form shown, the magazine 3 is rigid with an action-slide 4 upon the rear part of which rests the breech-block 6, which has depending parts 9, 10, Fig. 6, engaging a cut-away part 11, Fig. 5, of the slide. Relative longitudinal movement between the slide and the breech-block, within the limits of the part 11, causes a pin 13 on the slide to engage one or other of two cam-surfaces 14, 15, Fig. 4, in a slot in the lower side of the breechblock to rock the block, round the part 9 as pivot, into and out of locking engagement with the rear edge of the ejection opening 17. The firing-pin 18 has a pair of downward projections, one 19, Fig. 1, limiting the travel of the firing- pin in the breech-block, and the other 20 being engaged by the pin 13 on the action slide during the rearward travel of the breech mechanism to maintain the firing-pin out of contact with the base of the cartridge during loading. A guideway 7 in the action-slide guides a fresh cartridge from the magazine during the opening movement, and this cartridge rests with its base against a face 40 on the breech-block when this is returned to the closing position. During the next opening movement, a pivoted member 38 raises the cartridge up the guideways 41 on the face of the breech-block into engagement with the extractor 30, Fig. 2, ready for insertion into the chamber during the forward movement. When the cartridge is in the chamber, the extractor claw is disengaged from the cartridge rim by a bevel 29 on the barrel. The spring-controlled ejector 32 is pivoted to the breech casing.
Patent GB-339378-A (GB)
Title: Improvements in non-refillable bottles
IPC: B65D49/08
Filed: 1929-09-17
Abstract: 339,378. Maeder, A. Sept. 17, 1929. Bottles, non-refillable. -A non-refillable bottle closure comprises a disc 4 of cork &c., with orifices 5 seating on a ledge 3 in the neck of a bottle 2, and upon which two adherent valve washers 8, 9 seat by the action of a spring-controlled spindle 7. The mouth is covered by a disc 12 with orifices 13 and a cemented screw-cap 14 with a central stoppered aperture. On tilting the bottle, a ball 16 falls and opens the valve to enable liquid to escape. The washer 9 of rubber &c. is held to the washer 8 by means of small teeth formed on the underside of the latter.
Patent GB-177760-A (GB)
Title: Improvements in or relating to evaporators for water operated by steam coils
IPC: C02F1/04
Filed: 1921-10-24
Abstract: 177,760. Griscom-Russell Co., (Assignees of Jones, R. C.). March 31, 1921, [Convention date]. Bulk evaporators.-In an evaporator, particularly for use on board ship for obtaining distilled water for boiler feed, drinking, &c. which is heated by steam coils 3 passing between inlet headers 4 and lower headers 6, the outlets 7 of the lower headers are connected directly to a chamber 8 which receives the drainage from the coils. The chamber has a valved outlet near its lower side through which the condensed water passes to the hot-well, and valves at the top and bottom for allowing escape periodically of air and sediment. The heating coils are carried by a door 2, on supporting-rollers 3a and rollers on the front of the door, which enable the coils to be withdrawn from the evaporator. In a small installation, a bracket for carrying a front supporting-roller may be cast on the base of the chamber 8.
Patent GB-170850-A (GB)
Title: An improved single-layer winding for alternating current generators
IPC: H02K3/28
Filed: 1921-10-24
Abstract: 170,850. Akt.-Ges. Brown, Boveri, et Cie. Oct. 28, 1920, [Convention date]. Windings.-To eliminate the higher voltage harmonics in single-layer windings of alternating- current generators having uniformly distributed slots the distances between the slots per pole containing the windings of any one phase are made such that while the two sides of the coil are symmetrically placed with regard to the main field, the effective linkages of any higher flux harmonic with the entire winding of the phase are nil. Fig. 2 shows the disposition of the conductors in the slots of a machine in which each side of the coils of any one phase occupies five slots, such as 1, 2, 3, 4, 5 and 1<1>, 2<1>, 3', 4', 5<1>. The curve represents the fifth flux harmonic in relation to the machine pole-pitch P. Instead of being placed in adjacent slots at each side of the coil, as usual, the conductors of each phase are in zones in which two pairs of slots, such as 1, 2, 1<1>, 2<1> and 4, 5, 4<1>, 5', are separated by a slot of another phase. It is shown in the Specification that the sum of the fifth harmonic fluxes linked with the turns of one phase, and represented by the positive and negative loops and the crosshatched areas of the curve, is zero. Similarly, the effect of the third, seventh, and higher flux harmonic is reduced. In the case of an odd number of conductors per slot, the distances between the slots are so chosen that for the coils of each phase the sum # zx #x is zero where zx is the number of conductors of that portion of the phase coil contained in one slot, and #x is the resulting flux of the higher field linked with this turn. Fig. 3 shows the distribution for eliminating the fifth harmonic in such a. case. The coil turns 1, 2, 3, 4, 1<1>, 2<1>, 3<1>, 4<1> of one phase are arranged with slots containing turns of other phases interpolated between slots 1-2, 1<1>-2<1> and 3-4, 3<1>-4<1> and the slots 1, 4, 1<1>, 4<1> carry 0.8 of the number of conductors in the remaining slots of the phase.
Patent GB-173855-A (GB)
Title: Improvements in and connected with safety devices for mine cages, hoists, lifts and the like
IPC: B66B5/04
Filed: 1920-10-06
Abstract: 173,855. Aitken, G. L., and Milligan, H. Oct. 6, 1920. Catch gear and like safety retaining-mechanism.-In safety devices for mine cages, lifts, hoists, &c. of the kind wherein the cage is connected to a second cage, or to a part of the wind ing-gear, by an auxiliary rope passed over a pulley, the auxiliary rope c is forced against fixed abutments o by blocks n<1> which move outwards when fluid is admitted to the cylinder m by the opening of the valve q caused by the descent of: the pulley d when the main rope breaks. Theplunger l of the valve q is mounted in the holder k for the brake blocks k' which act on the rim of the pulley when it descends. The bearing-block h of the pulley d is slidably mounted in a guide. h<1> and supported by a spring j.
Patent GB-1378973-A (GB)
Title: Process of electroplating with chromium electroplating composition and electroplated article
IPC: C25D3/04
Filed: 1972-06-16
Abstract: 1378973 Electro-plating with chromium M & T CHEMICALS Inc 16 June 1972 [18 June 1971] 28322/72 Heading C7B Cr (e.g. micro-crack Cr having at least 40 microcracks per cm) is electro-plated from an aqueous bath containing (a) hexavalent Cr ions, (b) sulphate or simple or complex fluoride ions, and (c) sulphoacetic acid, isethionate or isethionic acid (i.e CH 2 OH CH 2 SO 3 H). Specified bath constituents are chromic acid, H 2 SO 4  and sulphates of NH 4 , Li, Na, K, Mg, Ca and Sr; La<SP>3+</SP>; F-, SiF 6 <SP>2-</SP>. BF 4 <SP>-</SP> AlF 6 <SP>3-</SP>, PF 6 <SP>-</SP>, ZrF 6 <SP>-</SP> and TiF 6 <SP>2-</SP>; soluble Se compounds such as selenic or selenous acid or specified salts or lower alkyl esters thereof; and Ce salts such as carbonate, fluoride and sulphate. The Cr electro-plate may be at least 1 x 10<SP>-4</SP>mm thick. The electro-plating may be at 30-70‹C. The micro-crack Cr may be electro-deposited on to a substrate bearing previously electro-deposited hard Cr or, in the Examples, is electro-deposited on to brass panels bearing previously electrodeposited Ni. The Cr may be deposited to provide bearing surfaces or wear-resistant surfaces.
Patent GB-782107-A (GB)
Title: Improvements in or relating to froth flotation
Inventor: SCHULMAN JACK HENRY
IPC: B03D1/004
Filed: 1953-10-14
Abstract: In the froth flotation of e.g. mineral ores and coals, the frother agent used is an alkyl, aryl or mixed alkyl-aryl polyoxyethylene ether alcohol or ether or an ether alcohol derived from the condensation of polyoxyetheylene and polyoxypropylene.  Preferably the agent is also a detergent and/or wetting agent capable of removing oily layers from collector-coated particles.  Examples of the agents are alkyl polyoxyethylene ether alcohols of formula H(CH2)x(OCH2CH2)yOH or alkyl-aryl polyoxyethylene ether alcohols of formula H(CH2)xC6H4(OCH2CH2)yCH, where y is 10 or more di-alkyl polyoxyethylene ethers of formula H(CH2)y(C2H4O)x(CH2)yH where X = 4-30, y = 2-18, and y is less than X, polyoxypropylene-polyoxyethylene ether alcohols of formula H(C3H6O)x(C2H4O)yOH where x = 2-30 and y = 2-60 polyoxyethylene - polyoxypropylene-polyoxyethylene ether alcohols of formula H(C2H4O)x(C3H6O)y(C2H4O)xOH, and polyoxypropylene-polyoxyethylene-polyoxypropylene ether alcohols of formula H(C3H6O)x(C2H4O)y(C3H6O)xOH.  Collector agents referred to are xanthates, dithiophosphates, diothiocarbamates, and sales of alkyl sulphates: it is stated that the frother agents are also effective collector acting agents in the flotation of solids possessing low surface energy, particularly coals.  The examples relate to the concentration of copper ores containing chalcocite and melachite, lead-zinc ores, and a mixture containing galena.
Patent GB-928564-A (GB)
Title: Improvements in or relating to devices for determining the displacement of an objectrelative to another
IPC: G01D5/38
Filed: 1961-08-04
Abstract: 928,564. Displacement measuring systems. PHILIPS ELECTRICAL INDUSTRIES Ltd. Aug. 4, 1961 [Aug. 9, 1960], No. 28400/61. Class 40 (1). Signals resulting from the passage of MoirÚ fringes over photo-cell 6 during movement of diffraction grating 1 are phase-modulated by vibrating reference grating 2 and the modulated and modulating signals are used to produce two waveforms differing in phase by 90 degrees to represent the extent and direction of movement of grating 1. The outputs of devices 10, 11 are proportional to sin #t and cos 2#t, where sin #t is the modulating signal, and the outputs at H, F derived from multiplicative detectors 12, 13 and filters 14, 15 are proportional to sin #x and cos #x, where # is proportional to the velocity of grating 1 and x is the displacement of grating 1. Waveforms differing in phase by 90 degrees may alternatively be produced by the gating circuit of Fig. 4 (not shown). Phase modulation may also be effected by vibrating a mirror which is used to superimpose an image of grating 1 on the grating in order to produce the MoirÚ fringes. The sense and extent of the displacement may be displayed on a cathode-ray tube or by means of a counter.
Patent GB-603676-A (GB)
Title: Improvements in ultra-high-frequency aerial systems or arrays
IPC: H01Q19/13
Filed: 1945-10-27
Abstract: 603,676. Aerials. WILD, E., and WRIGHT, C. S. Oct. 27, 1945, No. 28462. [Class 40 (vii)] In a directional aerial system comprising a reflecting mirror 1, fed from an open - ended wave-guide 2, the standing waves produced in the guide by reflection from the mirror are reduced by locating a partial reflector 6 of electromagnetic waves in front of the open mouth of the guide so that waves reflected from the mirror and from the partial reflector are in antiphase at the waveguide mouth. The plate 6, which is constructed of a solid dielectric may comprise a continuous sheet, an open mesh, or an array of spaced parallel rods of the material. The position of the plate may be adjusted by means of the clamping nuts 8.
Patent GB-1456461-A (GB)
Title: Friction welding machine
IPC: B23K20/12
Filed: 1974-06-27
Abstract: 1456461 Welding by pressure CLARKE CHAPMAN Ltd 23 June 1975 [27 June 1974] 28479/74 Heading B3R A friction welding machine comprises a first member 12 (e.g. a friction welding head slidably mounted on a base 10) movable relative to a reaction member 18 by an hydraulic piston and cylinder device 20 disposed between the first member 12 and the reaction member 18, the piston and cylinder device providing more than one piston-cylinder combination (e.g., as shown in Fig. 2, a piston 260 with spaces 256, 258 and a piston 276 with spaces 272, 274) operated by an hydraulic valve mechanism which selectively renders different piston-cylinder combinations effective.  A typical operating sequence comprises securing workpieces in a chuck 26 (driven by an electric motor 28) and a clamp 14 (non-rotatable), the head 12 and the pistons 260, 276 being initially in extreme respective leftward and rightward positions in Fig. 1 and Fig. 2. The head 12 is advanced rapidly by energization of a valve 290 (to a high pressure output setting), of solenoids 236A, 240A, 264A, and of a valve 232 (to provide maximum pressure). Hydraulic fluid is fed rapidly from pumps 212, 214 via valves 232, 240 to a valve 236. Since the solenoid 236A is energized, fluid flows through the valve 236 to the hydraulic space 258 which moves the smaller piston rapidly leftward and hence through piston-rod 280 (Fig. 2) moves the head 12 rapidly rightward (Fig. 1), spaces 272, 274 being connected through an un-operated valve 250 to allow free leftward movement of the piston 276. The pressure rise which occurs on the workpieces abutting is detected and the apparatus automatically performs the next stage wherein the solenoids 240A, 264A are de-energized and solenoid 250A is energized to allow fluid flow from the pump 212 additionally through the valve 250 to the space 274 and the valve 232 is set firstly to a first pressure, secondly to a second higher welding pressure, and thirdly to increase the pressure suddenly to give a forging load at the time the chuck 26 is rapidly halted by a brake. On weld completion, the head 12 is retracted rapidly by setting the valve 290 to maximum pressure setting and by the energization of solenoids 236B and 264A, with or without energization of the solenoid 240A, so allowing fluid flow into the space 256. In an alternative to the rapid head advance above, energization of the solenoid 264A is omitted and energization of the solenoid 250A replaces that of the solenoid 236A so that slow advance is obtained. The machine may have one piston-cylinder device 20 on each side of the head 12 or the pistons 260, 276 may be secured to different piston-rods. The clamp 14 and backstop 16 may be movable and the head fixed.  The workpieces may also be moved in relative orbital movement.