baber/WOPTO huggingface dataset:
Patent GB-776469-A (GB)
Title: Process and apparatus for the electrolytic deionisation of salt-containing liquids
IPC: B01J47/12
Filed: 1954-12-17
Abstract: 776,469. Electrodialysis. NEDERLANDSE ORGANISATIE VOOR TOEGEPASTNATUURTWETENSCHAPPELIJK ONDERZOEK TEN BEHOEVE VAN NIJVERHEID, HANDEL EN VERKEER. Dec. 17, 1954 [Dec. 17, 1953], No. 36607/54. Class 41. An electrodialytic apparatus comprises an anion-exchanger 15 and a cation-exchanger 16, disposed in a chamber 5 bounded on two sides by ion-permeable membranes 19, 20, the chamber having an inlet 11 and an outlet 12 for liquid to be deionized, e.g. water, and deionized liquid respectively, the membranes bordering rinsing chambers 3, 4 having inlets 7, 9 and outlets 8, 10 respectively for rinsing liquid, there being means, e.g. electrodes 1, 2, for maintaining a potential difference across the membranes 19, 20 and the chamber 5. The ion-exchangers 15, 16 may be arranged alternately in strata which are parallel or perpendicular to the flow of electric current. The membranes 19, 20 may be anion- and cation-selective respectively, or they may be equally permeable to all ions, e.g. being of parchment or porous ceramic. A number of chambers 5 may be disposed for parallel liquid flow therethrough, being separated by intermediate rinsing chambers which may be supplied with the same liquid.
Patent GB-1375541-A (GB)
IPC: F16C33/04
Filed: 1970-07-29
Abstract: 1375541 Bearings GKN GROUP SERVICES Ltd 21 Oct 1971 [29 July 1970 22 Sept 1970] 36652/70 and 44972/70 Heading F2A [Also in Division C7] A composite bearing component, e.g. a thin walled bearing component having a steel backing strip, comprises a matrix of good bearing material, e.g. lead-tin alloy, reinforced with fibres, e.g. of carbon, which may have a maximum length of ¢-¥ inch, and optionally are pre-plated with copper or tin, the fibres forming less than 50% by volume of the composite material, and substantially no fibres being present at the bearing surface.
Patent GB-836440-A (GB)
Title: Improvements in or relating to the use of ferrite members in microwave conductors
IPC: H01P1/36
Filed: 1956-11-30
Abstract: 836,440. Non-reciprocal waveguide devices. SPERRY RAND CORPORATION. Nov. 30, 1956 [Dec. 8, 1955 (2)], No. 36698/56. Class 40 (8). A polarized ferrite element is arranged in a waveguide to present zero permeability to circularly - polarized waves travelling in one direction and a finite permeability to circularly-polarized waves travelling in the other direction. The reverse wave is attenuated by virtue of dissipation within the ferrite element. In the embodiment of Fig. 2 the ferrite element 12 is supported centrally within a circular waveguide 11 by annular dielectric members 22 and is polarized by a coil 13 providing an axial magnetic field whose direction is indicated by the arrow. The waveguide 11 is connected to input and output rectangular waveguides 17, 19 and is provided at either end with polarizers 14, 15 of conventional design capable of producing a circularly-polarized wave. The first polarizer 14 is arranged to convert the plane-polarized wave from the input 17 into a counterclockwise rotating wave, i.e. a positively-rotating wave when viewed in the direction of the magnetic field. The outer shell 26, Fig. 4, of the member 12 is made of ferrite and the magnetic field is adjusted to such a value that the ferrite shell presents an effective permeability of zero to a positively-rotating wave. Thus the shell behaves as a cylindrical conductor for the input wave and forms with the waveguide 11 a coaxial line along which the wave is propagated to the polarizer 15. The latter is arranged to reconvert the circularly-polarized wave to a wave plane-polarized in the same plane as the input wave. A wave reflected from the output due to mismatch propagates back through the polarizer 15 and is converted to a circularly polarized wave rotating in a counterclockwise sense, i.e. a negatively rotating wave when viewed in the direction of the field. To such a wave the shell 26 presents a positive permeability and hence the wave propagates within the shell. A layer 28 of dissipative material within the shell produces attenuation of the wave energy. The shell may also contain a core 27 of ferrite. Alternatively, it may be completely filled with a ferrite chosen for its dissipative properties. The tapered end pieces 29, 30 may be of ferromagnetic material coated with a conductive layer. They may be permanent magnets providing the polarizing field for the ferrite element. The invention may be applied to a rectangular waveguide 41, Fig. 6, in which case the ferrite element consists of an elongated block or a series of posts 42, 43, 44 situated at a point in the waveguide offset from the centre-line where the wave is circularly polarized. The rods may be hollow and a lossy dielectric liquid may be circulated through them. In the embodiment of Fig. 9, the non- reciprocal elements are in the form of ferrite members 57, 58 of semi-circular section containing dissipative material. They are placed in contact with conduits 59, 60 for liquid coolant.
Patent GB-1486246-A (GB)
Title: Method of and a tool for manufacturing a conical spline drive socket
IPC: F16B23/00
Filed: 1974-08-21
Abstract: 1486246 Screw heads BULTEN-KANTHAL AB 21 Aug 1974 [21 Aug 1973] 35802/74 Heading F2H [Also in Division B3] A screw-head recess 10 comprises grooves 13 and ridges 14 alternating circumferentially around the axis of a screw. The bottoms of the grooves and the upper surfaces of the ridges are disposed on frusto-conical surfaces concentric with the screw axis; the side surfaces of each groove are planar and intersect planes perpendicular to the screw axis in lines parallel to a symmetry plane of the groove containing the screw axis. A method of manufacture consists of coldforming the screw head from a threaded blank in two steps, the first providing a thickening to form the head and the second shaping the recess and finishing the head with a tool 18 having a conical punch portion.
Patent GB-950227-A (GB)
Title: Improvements in fishing reels
IPC: A01K89/016
Filed: 1961-10-16
Abstract: 950,227. Fishing reels. K. P. MORRITT. Sept. 17, 1962 [Oct. 16, 1961], No. 37047/61. Heading A1A. In a fishing reel having a check mechanism comprising a pawl 15 and a primary ratchet check wheel 14 the latter engages a secondary check wheel 16 having a hub part 16b forming an adjustable brake. The secondary check wheel 16 is rotatably mounted on a shaft 17 disposed on the inside back of the reel casing 9 and comprises an outer toothed ring 16a, the hub 16b, and a series of balls or rollers 21 disposed in ramp-shaped recesses in the hub. The balls lock the ring to the hub in one direction of rotation. The hub frictionally engages a flat spring washer 23 bearing against the inner surface of the casing 9. The frictional engagement between the hub and the washer and the washer and the casing 9 is adjusted by a finger piece 25 screwed on to the shaft 17. The pawl 15 is of triangular shape and is engaged by one end of a hairpin spring 18 mounted on either a post 19 or a post 19a. The pawl can be disengaged from the primary wheel by rotating it about its pivot.
Patent GB-1018603-A (GB)
Title: Photographic camera
IPC: G03B7/02
Filed: 1962-10-01
Abstract: 1,018,603. Photographic camera with exposure meter. VOIGTLANDER A.G. Oct. 1, 1962 [Sept. 30, 1961],No.37193/62. Heading G2A. A photographic camera has a built-in exposure meter comprising a moving coil measuring instrument connected in a bridge circuit which includes a sliding contact voltage divider 22 with a photo-cell arranged so that the amount of light falling on it, and hence its resistance varies in accordance with the setting of the objective diaphragm, and a principal setting member 3 for manually adjusting the diaphragm and self shutter speed members 11, 7 in which the sliding contact 21 of the voltage divider is coupled to the shutter speed selling member and in which the principal setting member 3 and the shutter speed setting member 9 have teeth which engage a toothed pinion 6 journalled on the diaphragm setting member 11. In the embodiment shown the sliding contact 21 is mounted on a film sensitivity setting ring 20 which is releasably coupled to the speed setting ring 7. The shutter speed setting ring can be rotated to set the required shutter speed and is held in the set position by detents 17 and ball 18. Rotation of setting ring 3 then serves to set the diaphragm aperture by rotating ring 11 but until a lug 12 on ring 11 reaches one of the abutments 29 in a recess 14 in the objective mount, the recess corresponding in length to the range of diaphragm apertures, ring 7 is not rotated. After lug 12 abuts an edge of the recess, further rotation of ring 3 will cause the locking force of ball 18 and detents 17 to overcome and ring 7 to rotate and adjust the shutter speed further. The shutter speed is controlled by means comprising a rotatable toothed disc 16. The objectives may be exchangeable. By depressing button 31 ring 3 can be directly coupled to ring 7 by means of teeth 33, 34 and because pinion 6 can no longer rotate ring 11 is also locked relative to rings 3.
Patent GB-1331731-A (GB)
Title: Braking means for a flexible element which is resiliently sup ported at one end
IPC: B66C15/02
Filed: 1971-08-09
Abstract: 1331731 Shock absorbing devices VEREINIGTE OSTERREICHISCHE EISEN-UND STAHLWERKE AG 9 Aug 1971 [18 Aug 1970] 37250/71 Headings B8B and B8L A braking and shock absorbing means for an auxiliary rope 1 in a lifting and lowering arrangement for an oxygen lance 12 comprises an arc shaped static deflection part 2<SP>1</SP> over which the rope 1 slides with friction, and two springs 3 and 4 having different spring constants resiliently connecting the rope end to the lance carriage 5<SP>1</SP>. Upon breakage of a main lifting rope, the auxiliary rope takes all the load of the lance 12, and its carriage, the shock being absorbed by friction of the rope 1 passing around the part 2<SP>1</SP> and by compression of the low spring rate spring 3 first followed by compression of the high spring rate spring 4. A rope portion 1<SP>1</SP> which takes all the friction wear is replaceably connectable into the rope 1 through connections 6.
Patent GB-834775-A (GB)
Title: A method for the preparation of catalysts for the polymerisation of ª‡-olefines
IPC: C08F10/00
Filed: 1958-11-19
Abstract: Components of a Ziegler-type catalyst, including a compound of a transition metal in its highest valency state, are mixed at 100-200 DEG  C. and a fresh portion of metallo-organic compound added.  The following features are preferred: (a) temperature above 120 DEG  C.; (b) concentration of catalyst components above 5%, particularly 10-30%, in suitable solvent, which includes, e.g. saturated aliphatic and alicyclic hydrocarbons; (c) for the mixing stage, an organo-Al compound (one equivalent calculated on the number of Al-C bands) for one mol. of transition compound is used; (d) the metallo-organic component is added to the transition metal compound.  In examples, TiCl4, Al triethyl, Al ethylsesquichloride, isopropylcyclohexane and decalin are used. This catalyst is applied to polymerization of a -olefins, particularly propylene.ALSO:a -Olefins, particularly propylene, but also, e.g. ethylene, butylene or styrene, are polymerized by means of a Ziegler-type catalyst (preferably TiCl4+Al triethyl) wherein the components are mixed at 100-200 DEG , preferably above 120 DEG  C., and a fresh portion of metalloorganic compound added; preferably the same solvents are used to make the catalyst and for the polymerization, conventional aliphatic and cycloaliphatic hydrocarbons being mentioned.  In examples, polymerization for 2 1/2 hours at 4-7 atm. and 50-180 DEG  C. resulted in a product 39-71% crystalline and reduced viscosity 5.28-12.6.
Patent GB-796370-A (GB)
Title: Saturable reactor device for phase discrimination
IPC: H03F9/04
Filed: 1955-12-29
Abstract: 796,370. Phase-sensitive circuits. BENDIX AVIATION CORPORATION. Dec. 29, 1955 [Jan. 3, 1955], No. 37303/55. Class 38 (4). [Also in Group XXXIX] A phase-sensitive device comprises two saturable cores 46, 47 whose windings 49, 51 produce opposite effects on a device 52 to be controlled, the resetting windings 48, 50 carrying currents which are oppositely varied by a transistor 27 in accordance with the phase of the signal Es applied to its base. The transistor is biased so that in the no-signal condition, the resetting windings receive equal currents on alternate half-cycles, to set the cores to a point midway between the saturated and the unsaturated state. During the subsequent halfcycles the currents in the windings 49, 51 produce equal and opposite currents in the coils 53, 54 of the device 52. If an input signal is of such a phase that the transistor is made more conducting whilst winding 48 is receiving current, that winding receives additional resetting current, thereby increasing the effective permeability of the core 46 so that during the next half cycle the current fed to coil 53 is reduced. Similarly with this phasing the resetting current to winding 50 is reduced so permitting a larger current to be fed to the winding 54. If, however, the phase of the signal Es is reversed windings 48 and 50 receive decreased and increased currents respectively, whereby the currents in coils 53, 54 are increased and reduced respectively. The device 52 may be a differential relay or a magnetic amplifier.
Patent GB-1176806-A (GB)
Title: Process for the Continuous preparation of Phosphoric Acid Esters by Reaction of Phosphorus Oxychloride with Alkylene Oxides
IPC: C07F9/09
Filed: 1967-08-14
Abstract: 1,176,806. Phosphoric acid esters. FARBWERKE HOECHST A.G. 14 Aug., 1967 [13 Aug., 1966], No. 37322/67. Heading C2C. Phosphoric acid esters are prepared by reacting phosphorus oxychloride with an alkylene oxide in the presence of a catalyst, using as reaction medium such an amount of the final product that the ratio of the quantity of final product used as reaction medium to the quantity of final product produced hourly by the reaction is within the range of from 2 : 1 to 20 : 1, treating the product with alkali, washing it with water and drying. The preferred catalyst is butyl titanate and the process is preferably carried out at a temperature between 50 to 100 C. Examples describe the preparation of tri-(#-chloroethyl)-phosphate and tris-(2,3-dichloro-propyl)-phosphate.
Patent GB-930671-A (GB)
IPC: A61K47/00
Filed: 1959-11-05
Abstract: The invention comprises: (1) compounds of the general formula <FORM:0930671/IV(a)/1> wherein A represents a hydrogen, fluorine, chlorine or bromine atom or a nitro, amino (unsubstituted), trifluoromethyl or C1-3 alkyl or alkoxy group, R1 represents a hydrogen atom or a C1-3 alkyl group, n is 1, 2 or 3 and M represents a group of the formula -Y-R where Y is S, SO or SO2 and R is one of the following groups: (a) alkyl or alkenyl of up to 12 carbon atoms, (b) C4-6 cycloalkyl, (c) naphthyl, (d) <FORM:0930671/IV(a)/2> (wherein k is 0,1, 2, 3 or 4 and R3 represents a hydrogen, fluorine, chlorine or bromine atom or an amino, mono- or di-C1-3-alkyl-amino, nitro or C1-3 alkyl or alkoxy group), (e) Z-(CH2)a-(wherein q is 0, 1, 2 or 3 and Z represents a thienyl, thiazolyl, pyrimidyl, pyridyl, furyl, imidazolyl or benzimidazolyl group), (f)-(CH2)n-C(:NR2)NHR2 (wherein n is 0, 1, 2, 3, 4 or 5 and R2 represents a hydrogen atom or a C1-3 alkyl, a phenyl or a C7-10 aralkyl group), (g)-(CH2)m-COOH (wherein m is 1, 2, 3, 4 or 5, or (h)-(CH2)n-COX (wherin p is 0, 1, 2, 3, 4 or 5, X represents OR1, NH2, NHR1, NHNH2 or NHNHR1 and R1 represents a C1-3 alkyl, a phenyl or a C7-10 aralkyl group), their alkali and alkaline-earth metal salts and the acid addition salts of such of them as contain a basic nitrogen atom, but excluding the compounds of Specification 930,672; and (2) the preparation of the compounds of (1) and of compounds of general formula I wherein M represents an alkyl or aryl sulphonic acid residue, either by heating a compound of the general formula <FORM:0930671/IV(a)/3> with an aldehyde M-(CH2)n-CHO (wherein M may additionally represent a halogen) or a C1-3 alkyl acetal thereof, and when M is halogen or optionally when M is an alkyl or aryl sulphonic acid residue, condensing the product with a mercaptan, followed if desired by oxidation, and, if desired, when R is -(CH2)?-COX and X is OR1, treating the product with NH3, R1NH2, NH2NH2 or R1NHNH2, or (when R1=H) by reducing a compound of the general formula <FORM:0930671/IV(a)/4> (wherein M represents -Y-R or an alkyl or arylsulphonic acid residue), and in all cases, if desired, forming an acid addition or alkali or alkaline-earth metal salt of the product. 5-Substituted-2,4-disulphamoylanilines of the general formula II above are prepared by heating the appropriate m-substituted anilines with chlorosulphonic acid and sodium chloride and treating the resulting disulphonyl chloride with concentrated ammonium hydroxide. Pharmaceutical compositions. - The compounds of (1) above, other than those in which R in the general formula I is -(CH2)n COOH or -(CH2)pCOOR1, are diuretic and/or hypotensive agents, and may be administered alone or in combination with pharmaceutically acceptable carriers, e.g. orally as tablets, capsules or solutions, sublingually as troches or lozenges, or parenterally as isotonic sterile solutions.
Patent GB-523178-A (GB)
Title: Improvements in or relating to card indexes
IPC: B42F15/00
Filed: 1938-12-28
Abstract: 523,178. Card indexes. EVE, P. J. C. Dec. 28, 1938, No. 37605. [Class 146 (i)] Index cards are detachably engaged with a carrying member by interfitting tongues and slots, the engagement being maintained by the rigidity of the cards. The carrier. comprises a strip 6 hinged to a bar 5 by linen tabs 7 and slotted at 8 to receive tongues 9 punched from the cards. The slots 8 pass through the strip 6 and tabs 7 and the tongues are preferably V- shaped and outwardly directed.
Patent GB-1153073-A (GB)
Title: A Rapper Control Circuit and Method of Control
IPC: H03K17/725
Filed: 1966-08-23
Abstract: 1,153,073. Semi-conductor oscillator circuits. JOY MFG. CO. 23 Aug., 1966 [30 Sept., 1965], No. 37684/66. Heading H3T. In a circuit for controlling the actuation of a solenoid 16 which causes movement of a hammer, the solenoid control signal has a variable mark/space ratio. The control pulses are generated by charging capacitor 46 through resistor 44 until the potential across it is sufficient to cause unijunction transistor 48 to conduct switching on transistor 60 and discharging capacitor 46 through resistor 62. The resulting saw-tooth signal is fed to gate con. trolled SCR 20 which is thus switched on, to energize solenoid 16, for a period determined by resistor 62, and switched off for a period determined by resistor 44.
Patent GB-1283228-A (GB)
Title: Insulator for pipe accoutrements and the like
Inventor: SCHNEIDER MARVIN
IPC: B29C59/02
Filed: 1969-07-28
Abstract: 1283228 Insulator for pipe fittings M SCHNEIDER 28 July 1969 37698/69 Heading F2P An insulator 20, Fig. 11, for pipe fittings 17 of various shapes comprises at least a pair of blanks 21, each blank having an outer shell of e.g. polyvinyl chloride with at least one open side; a block filling each shell, the block being of a rigid foamed synthetic resin, e.g. polyurethane, sufficiently friable to deform when the blanks are forced together around the fitting to conform substantially to the shape of the fitting with the exposed surfaces of the blocks mating around the fitting to encase it. In a preferred embodiment the polyurethane, to which carbon black has been added, is injected into the shell, which acts as a mould, using a halocarbon gas such as trichloromonofluoromethane as the blowing agent. A lid is placed over the shell, and the degree of expansion of the polyurethane is great enough to increase the gas pressure sufficiently for the cells of the foam to be orientated with their longitudinal axes parallel with the open surface 26 (Fig. 7, not shown). The amount of open cell structure is controlled by the addition of 0À25-3% by weight of carbon black to not more than 20% and preferably 8-12%. This is sufficient to reduce the cell collapse produced at low temperatures by the partial vacuum caused by condensation of the halocarbon gas. The addition of carbon black also aids the cell structure by localizing cell collapse when the blocks are deformed. The polyurethane foam thus produced preferably has a compressive yield strength of between 5 and 20 p.s.i., and a coefficient of thermal conductivity of no greater than 0À16 b.t.u.'s per hour, per square foot, per inch length, per degree F. Apparatus for compressing the blocks against the pipe fitting is disclosed (Fig. 8, not shown). A soldering iron may be used to cut holes in the polyvinyl chloride shell to accommodate the fitting. The peripheral mating edges 26 of the blocks are preferably coated with a solvent activated adhesive, at the place of manufacture, so that a bond can be formed between them by melting with solvent after the blocks have been deformed about the fitting. The friability of blocks prepared from polyurethane to which a blocked amine has been added can be eliminated after they have been deformed by heating to at least 150‹ F.  The shells of the blanks may be dispensed with, by the use of "self-skining" foams.
Patent GB-356059-A (GB)
Title: An adjustable metal frame for holding tickets to indicate the class of goods and the price thereof
IPC: G09F3/18
Filed: 1930-12-16
Abstract: 356,059. Price &c. ticket holders. MACKAY, A. F., 257, Amhurst Road, Stoke Newington, London. Dec. 16, 1930, No. 37840. [Class 73.] A price ticket holder comprises a pair of interfitting frames B, Fig. 1, and D, Fig. 6, each provided with grooves at both sides and one end for the reception of separate tickets denoting the class of goods and price respectively, the tickets being superposed when the frames are assembled. The lower frame is provided with a slot C for the reception of a supporting bracket &c.
Patent GB-619833-A (GB)
Title: Improvements in or relating to side cars for bicycles
IPC: B62K27/02
Filed: 1946-12-31
Abstract: 619,833. Wheeled carrier attachments. HILL, G. B. Dec. 31, 1946, No. 38111. [Class 136 (iii)] [Also in Group XXXII] A detachable sidecar for a bicycle is connected to a cycle rear fork 30 by a bracket 27 provided with projections 26 engaging a sidecar bracket 2, any relative movement being prevented by a screw 32 engaging an annular groove 33 in projection 26.
Patent GB-1450145-A (GB)
Title: Data storage arrangements using field effect transistors
IPC: G11C17/00
Filed: 1973-09-18
Abstract: 1450145 Semiconductor devices SIEMENS AG 18 Sept 1973 [18 Sept 1972] 38194/73 Heading H1K In an MNOS transistor for data storage the length of the channel 8 is less than twice the width of any space charge zone formed around the source and drain regions 2, 3 during recording or erasure of data. For n type 10 ohm.cm. Si the channel length may be in the range 1-5Á.