baber/WOPTO huggingface dataset:
Patent GB-1108565-A (GB)
Title: Improvements in or relating to apparatus of forming depressions in a record medium
Inventor: SPENCER ROLF EDMUND
IPC: G11B9/08
Filed: 1963-12-14
Abstract: 1,108,565. Recording process for gramophone records. ELECTRIC & MUSICAL INDUSTRIES Ltd. 14 Dec., 1964 [14 Dec., 1963], No. 49476/63. Heading G5R. A master gramophone record in the form of a layer of wax on a conducting plate is mounted on a turntable, which may be the conducting plate, and charged electrostatically, for example by electron bombardment. A laser beam is directed on to the surface by a mirror which turns slowly to scan the beam radially across the record so that the beam traces a spiral track. The beam softens the surface of the record, and the electric charge causes a depression to be formed where the surface has been softened; the depth of the depression depends on the charge and on the intensity of the beam and may be varied by varying either or both parameters. Alternatively the beam may be moved radially in accordance with the modulation. The radial movement may be caused by a mirror, a prism, a liquid medium in which an effective grating is set up ultrasonically, or a doubly refracting prism preceded by a device for rotating the plane of polarization of the light may be employed. Stereo signals may be recorded by controlling the lateral and depth modulation in response to the sum and difference signals or by using a pair of vibrating mirrors operating on a split beam. The laser may be excited continuously or in such a manner that the softening effect of its beam is effectively continuous.
Patent GB-1109919-A (GB)
Title: Improvements in or relating to electrical connectors
Inventor: AIREY NORMAN
IPC: H01R13/631
Filed: 1965-11-23
Abstract: 1,109,919. Two-part couplings. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd. 23 Nov., 1965, No. 49615/65. Heading H2E. Sockets for engaging pins 16 of a multi-pin plug 14 are secured in pairs in bores 11 of a plastics moulding 10 by plastics pins 25 which pass through orientated holes 24 and 13 in the socket members 12 and moulding. The bores 11 and holes 13 are sufficiently large to allow the socket members some freedom of movement. Both ends of each socket member are drilled, the contact end having a region of reduced diameter consisting of four slightly flexible limbs formed by slots (22, Fig. 3, not shown) and embraced by a pressure ring 23, and the other end receiving a conductor 20 which is soldered to it through a slot 21. The parts may be palladium-plated. Some socket members, instead of being soldered to conductors, may have their ends formed as plug pins (Fig. 4, not shown), and pairs of socket members may be electrically connected by using split metal tubes in place of the plastics pins 25. Each plug pin 15 is guided into its corresponding socket by a shaped hole (19, Fig. 2, not shown), in the moulding 10. Guiding recesses 17 and 18 in a moulding 14 incorporaing a number of plug units ensure correct orientation of the socket connectors.
Patent GB-1246373-A (GB)
Title: Regeneration of magnesia-base pulping liquor
Inventor: SHAH INDRAVADAN SHANTILAL
IPC: D21C11/06
Filed: 1969-10-09
Abstract: 1,246,373. Magnesium sulphite/bisulphite; magnesium. CHEMICAL CONSTRUCTION CORP. 9 Oct., 1969 [10 Oct., 1968], No. 49733/69. Heading C1A. [Also in Division D2] A magnesia-based spent pulping liquor e.g. from pulp mill 1 is treated by contacting with a a preheated air stream e.g. in two evaporators 3 and 10, giving a concentrated liquor, burning the concentrated liquor to give solid MgO and a hot flue gas e.g. in a fluidized bed 17 at 700- 1100‹ C., separating the hot flue gas from the MgO, passing this hot gas in indirect heat exchange with air at 30, to cool the gas to 120-500‹ C., and form the preheated air stream, suspending the MgO in water at 20, and adding the slurry to a solution in vessel 28 containing Mg(HSO 3 ) 2  and MgSO 3 , and scrubbing the cooled flue gas in said vessel with this mixture to produce a Mg(HSO 3 ) 2 /MgSO 3  solution, at 60-100‹ C. The MgO slurry may be washed at 23 and slaked at 25 before addition to the scrubbing liquor.
Patent GB-1104070-A (GB)
Title: Microwave oscillator
IPC: H03K3/02
Filed: 1966-11-07
Abstract: 1,104,070. Semi-conductor devices. INTERNATIONAL BUSINESS MACHINES CORPORATION. 7 Nov., 1966 [17 Dec., 1965], No. 49754/66. Addition to 1,070,261. Heading H1K. [Also in Division H3] A microwave oscillator comprises a coaxial microwave cavity 16 which is coupled with a Gunn effect oscillator formed by an N-type GaAs semi-conductor crystal 10 with contacts 12, 14 on opposite faces, the oscillator producing sustained oscillations when a voltage pulse train having an amplitude in excess of the Gunn Effect threshold is applied to an input conductor 15b. A conductor 15a couples the semi-conductor crystal to the microwave cavity which is tuned by an adjustable shunt 17. The microwave output is fed to a load 20 by a magnetic loop 22 and a coaxial line 23. The phase of the generated oscillations may be varied by altering the starting position of an input pulse, by altering the pulse amplitude, or by changing the value of a D.C. bias. Controls 40, 42, 44 are provided for this purpose in a power source 18.
Patent GB-1082548-A (GB)
Title: Improvements in and relating to cheese moulds
IPC: A01J25/13
Filed: 1964-12-08
Abstract: In a cheese mould of the type disclosed in Specifications 997,032 and 881,992 comprising an outer mould portion and a detachable inner split mould portion or shell, the shell is strengthened by being comprised of two juxtaposed and rigidly interconnected plates having intermediate evenly distributed shallow protuberances projecting from at least one of the plates, and of which plates at least the one facing the interior of the mould is finely perforated.  The two plates are cylindrical, are spot welded together at the top and bottom and are welded to a reinforcing ring at the top.  Preferably the inner of the two plates is both perforated and embossed with protuberances, and the outer plate is smooth and unperforated.
Patent GB-1005406-A (GB)
Title: Racemization of optically active trans-chrysanthemic acid
IPC: C07C61/04
Filed: 1963-12-18
Abstract: The invention comprises optically active and racemic trans-acids of formula <FORM:1005406/C2/1> and C1- 5-alkyl esters thereof and a process for making the acids by (a) contacting aqueous permanganate and trans-chrysanthemic acid in alkaline solution.  The esters are made from the acids by esterification (b) and may be racemized (c) by contact with an alkali metal C1- 6-alcoholate; the esters may be (d) hydrolysed to produce the racemic acid.  The acid of the above formula may be converted to trans-chrysanthemic acid by (e) heating with at least an equimolar amount of hydrazine in presence of a boric catalyst at 180-220 DEG  C. in an inert solvent having a boiling-point at least that of the heating temperature.  The above-described processes (a), (b), (c), (d), and (e) may be combined in that order to provide a method for racemization of an optically active trans-chrysanthemic acid.
Patent GB-1211243-A (GB)
Title: Axial balancing arrangement in a rotodynamic pump
IPC: F04D29/04
Filed: 1967-11-03
Abstract: 1,211,243. Centrifugal pumps. ZABRZANSKA FABRYKA MASZYN GORNICZYCH. Nov.3, 1967 [Nov.12, 1966], No.50213/67. Heading F1C. An axial thrust balancing arrangement in a rotodynamic pump comprises a rotary balancing disc 12, Fig. 1, subjected to the pressure of oil in chambers b and c. A pressure difference is established between these chambers by a leakage gap 11 which is automatically adjusted in accordance with the axial thrust exerted on the shaft 8. A spring biased auxiliary bearing 16 prevents violent leftward movement of the pump shaft and consequent impact of the disc 12 with seating ring 13. The oil is supplied at a constant and higher pressure than that of the pumped liquid, through a passage 1 to a collector 3 and passes through tangential passages 4 on to the sliding surfaces of seal 5, 6. The oil then flows through a chamber a and pressure reducing openings 10 in a bearing 9 to the chamber b. The oil in chamber a is therefore maintained at relatively high pressure to establish a lubricating flow through the bearing 9 and avoid penetration of the pumped liquid into the balancing arrangement. Sealing liquid is supplied through a passage 18 to a chamber d associated with a helical thrower 19 which maintains a positive pressure difference between the liquid in the chamber a and the pumped liquid. In an alternative embodiment, Fig. 2 (not shown), the balancing oil is cooled by a water-cooled coil (21) in chamber (c), and thereafter passes to an annular tank (20) from where it is returned to the passage (1) by a pump (22).
Patent GB-1355985-A (GB)
Title: Solid slow release preparation of prolonged action
IPC: A61K9/20
Filed: 1971-10-29
Abstract: 1355985 Delayed and sustained release medicaments PHARMA-CHEMIE BETEILIGUNGSGmbH [trading as EFEKA FRIEDRICH & KAUFMANN] 29 Oct 1971 [19 Dec 1970] 50394/71 Heading A5B A composition from which a medicament can be slowly released comprises a blend of an active ingredient, a water-soluble alginate and a salt of a metal, e.g. Ca, Sr or Ba, which forms a water-insoluble alignate. Fillers, lubricants and binding agents may also be present to render the composition suitable for use in compressed tablets, capsules, suppositories and other conventional forms.
Patent GB-1080599-A (GB)
Title: Improvements in and relating to l-ornithine l-aspartate
Filed: 1963-12-23
Abstract: L-Ornithine L-aspartate is prepared by reacting L-ornithine with L-aspartic acid or an acid addition salt of L-ornithine with a metal salt of L-aspartic acid in the presence of water. Depending on the reaction conditions either an a -type or b -type salt or a mixture of both is obtained; the a -type salt may be converted to the b -type salt.  Reference has been directed by the Comptroller to Specification 965,637.
Patent GB-1468057-A (GB)
Title: Liquid solvent-free aromatic polyisocyanates which contain carb-xyl and/or carboxylate groups
IPC: C07C239/00
Filed: 1974-11-28
Abstract: 1468057 Aromatic polyisocyanates BAYER AG 28 Nov 1974 [30 Nov 1973] 51556/74 Heading C2C [Also in Division C3] A liquid aromatic polyisocyanate which contains carboxyl and/or carboxylate groups and has an isocyanate content of 10 to 40% by weight and a carboxyl and/or carboxylate group content of 0À1 to 10% by weight is prepared by reacting a liquid multicomponent mixture of aromatic polyisocyanate having an isocyanate content of 10 to 42% by weight and a specific viscosity of 8 to 10,000 cP at 25‹ C., with (a) a compound which contains carboxylate groups and hydrogen atoms which are reactive with isocyanate groups or (b) a hydroxy-carboxylic or mercaptocarboxylic acid in which during or after the isocyanate addition reaction the carboxyl groups are at least partly converted into the corresponding carboxylate groups or in which the carboxyl groups are much less reactive with isocyanate groups than are the hydroxy or mercapto groups.
Patent GB-1516638-A (GB)
Title: Arrangements for controlling the charge and/or discharge cycles of alkalimetal/sulphur cells and batteries
IPC: H01M10/42
Filed: 1974-11-28
Abstract: 1516638 Alkali metal-sulphur cells CHLORIDE SILENT POWER Ltd 18 Nov 1975 [28 Nov 1974] 51637/74 Heading H1B The operating cycle of an alkali metal (Na)-S cell comprising, e.g. tube 2 of beta-alumina containing Na with a current collector 5 having a corrugated portion 6 of insulating material, and a steel plate 7 spaced from the tube 2, is controlled by a conductor 9 and portion 6. Discharge occurs through a resistor 11 until the sodium falls below the conductor 9, then discharge occurs through an external load until the Na level reaches insulating portion 6. The battery is then recharged, until the Na again reaches the conductor 9. A similar construction (Fig. 2, not shown) has the sulphur within the beta-alumina tube, and conducting rods extend into the Na reservoir. In a further modification (Fig. 3, not shown) a group of Na-S cells are controlled by a cell in which Na is transferred ionically from one compartment to another through a beta-alumina tube.
Patent GB-1437571-A (GB)
Title: Mine roadway bunke assemblies
IPC: E21F13/02
Filed: 1974-11-29
Abstract: 1437571 Bunkers between in-feed and out-feed conveyer belts in mines GUTEHOFFNUNGSHUTTE STERKRADE AG 29 Nov 1974 [29 Nov 1973] 51833/74 Headings B8A and B8E An in-feed conveyer (not shown) discharges downwardly into a bunker 1 the bottom of which is closed by a conveyer belt 5. Seals 6 are disposed between turned inward flanges of the bottoms of the bunker walls. The bunker has rollers 2 which run on rails 3, 3, carried by the side frames of the conveyer 5. The bunker discharges on to an out-feed conveyer (not shown). The rollers 2 are carried by a unitary frame.
Patent GB-1433585-A (GB)
Title: Container for containing small objects for electroplating or chemical treatment
IPC: C25F7/00
Filed: 1974-11-29
Abstract: 1433585 Perforated workpiece holder for plating and cleaning SCHERING AG 29 Nov 1974 [8 Dec 1973] 51883/74 Headings C7B and C7E A container for small "pourable" objects for holding them during electro-plating or chemical treatment has a perforated wall in which the perforations taper axially in alternately opposite directions. The container may be a rotatable drum of PVC, polyethylene or polypropylene and have a matrix of staggered rows of conical or truncated 8-sided pyramidal holes. The holes may taper non-linearly.
Patent GB-522332-A (GB)
Abstract: 522,332. Separating oil from air. JOHNSON, J. P. Jan. 6, 1939, No.534. [Class 123 (iii)] An oil separator comprises a closed container having an inlet 22 for oil-laden air under pressure, an outlet 20 and a perforated member 25 separating and extending in a curved path between them and so disposed as to reduce the air velocity and cause oil particles to adhere to the member for removal through a drain 30 after passage through the perforations. The side walls diverge from front to rear and the container is so mounted by a bracket 38 that the bottom wall 16 is inclined about 15 degrees to horizontal. An opening 43 in a side wall may communicate with a pressure gauge.
Patent GB-1508490-A (GB)
Title: Apparatus for moulding a slurry of calcium silicate crystals
IPC: C04B28/20
Filed: 1975-12-22
Abstract: 1508490 Press filter OSAKA PACKING SEIZOSHO KK 22 Dec 1975 [27 Dec 1974 21 Feb 1975] 52402/75 Heading BID [Also in Division B5] An apparatus for filtering and pressing a slurry of calcium silicate crystals to provide a moulded article comprises a base plate 2 having drain passages in its upper surface; an endless conveyer belt 9 of net material, the upper run of which lies on the base plate; a lower mould member 10 of frame-like form, reciprocal, e.g. by pistons 12, in the vertical direction into and out of contact with the belt 9; an upper pressing mould member 13 arranged to reciprocate vertically, e.g. by pneumatic press 14, into and out of the lower mould member 10 to press the cake therein, the upper mould member 13 being provided with drain passages for filtrate in its lower surface; means 23 for holding down the lower mould member and movable upwardly and downwardly independantly of the upper mould member; and means 52 for supplying slurry to the lower mould member. In use, a cake is first formed inside the lower mould member on the belt using the pressing action of the upper mould and then the lower and upper mould members are together raised a little distance above the belt before release of the cake from the lower mould member by raising the lower member holding means 23 to allow that member to rise relative to the stationary upper mould member, the released moulded cake falling onto the belt. The cake release may be aided by supply of compressed air through the upper mould member drain passages. The upper mould member may be washed between filtering operations by water spray 26 reciprocal both forwardly and backwardly and sideways. The belt may be cleaned by water spray 25'. Means 49 may be provided to supply a constant volume of slurry to each filtering/pressing operation. A removable wire net may be placed over the lower surface of the upper mould member and its drain passages may be connected to a source of vacuum.
Patent GB-1512228-A (GB)
Title: Constant flow system for detection of amino acids
IPC: G01N33/68
Filed: 1975-12-23
Abstract: 1512228 Chromatography DURRUM INSTRUMENT CORP 23 Dec 1975 [25 June 1975] 52707/75 Heading B1H [Also in Division G1] In a continuous method for the detection of at least one primary amino acid and secondary amino acid accurring in a known sequence in a liquid sample stream moving in a flow path at a substantially constant flow rate to a detection zone, e.g. the element stream from a chromatographic column flowing to a fluormeter and wherein the detectability of the primary amino acid is impeded by reaction with an oxidising reagent while the dectability of the secondary amino acid is improved by reaction with said oxidising reagent, the steps of (a) adding an inert liquid diluent stream at a predetermined flow rate to the sample stream in the flow path when the sample stream includes a primary amino acid only at a selected location in the flow path, (b) adding stream containing said oxidising reagent at essentially by the same flow rate as the liquid diluent stream of step (a) at the selected location when the sample stream at the location includes a secondary amino acid only and simultaneously discontinuing the flow of the liquid diluent stream at that moment, whereby liquid flows through the detection zone at a substantially constant flow rate during detection of the primary and secondary amino acids, and (c) continuously adding a detection reagent to the sample stream flowing in the flow path downstream from the selected location, the said detection reagent being capable of quantitatively reacting with the primary and secondary amino acids in the stream to render the primary and secondary amino acids detectable. The detection reagent is preferably a fluorogenic reagent such as fluorescamine or o-phthalaldehyde, the oxidising agent may be N-chlorosuccinimide and the detection zone may be a fluorometer.
Patent GB-1479770-A (GB)
Title: Valves
IPC: F16K27/04
Filed: 1975-12-03
Abstract: 1479770 Valves BRIDON ENG Ltd 3 Dec 1975 [6 Dec 1974] 52808/74 Heading F2V In a solenoid-operated valve having a spool 17 moved within a sleeve 11 in which ports 24- 28 are each formed as circumferentially extending slots, ports 24, 27, 28 have an axial width of less than 80 thousands of an inch and land 14 has an axial width of less than 100 thousands of an inch. Preferably the ports 24, 27, 28 have an axial width of 40 thousands of an inch, the ports 25, 26 have an axial width of 80 thousands of an inch and land 14 has an axial width of 50-60 thousands of an inch to give a valve stroke of 100 thousands of an inch. The sleeve has a length to internal diameter ratio of 2-5 and may be integral with the housing.
Patent GB-1212005-A (GB)
Title: Coded message generator
IPC: H04L12/06
Filed: 1967-11-22
Abstract: 1,212,005. Digital transmission systems. SCM CORP. 22 Nov., 1967 [5 Dec., 1966], No. 53127/67. Heading H4P. A circuit for generating a preset message comprises electronic means (e.g. a diode matrix) for generating a unique n-bit code combination when a corresponding input is pulsed, these inputs being selectively connected (e.g. by a patchboard) to the sequentially pulsed outputs of a counter arrangement. Each combination includes an odd or even parity bit. In the embodiment described counter 218 generates a 7- bit binary count. A diode matrix 220 converts the count to decimal, the matrix outputs pulsing sequentially. By appropriately plugging patchboard 216 each matrix output pulse is fed to a selected input of a second diode matrix 234 so that each pulse causes a selected 8-bit signal to be generated. Each signal includes a parity bit. The signal is fed to terminals C1-C7, CP, of a gating arrangement which, under the control of switches, passes the signal in normal or inverted form to the output D1-D7, Dp, with the parity bit representing odd or even parity, and with the parity bit correct or incorrect for test purposes. The counter is fed by pulses from a manual switch S7 so that one character is generated each time the switch is operated, or from one of a number of different speed clock pulse sources 282, 284, 286, or from a clock source external to the circuit, or from a demand line connected to apparatus with which the circuit is co-operating. The counter can be held on any selected count by switch S3, so that the corresponding code combination is continuously present at the output of matrix 234. The counter is cyclic and can be reset by switch S8 or by an end of message pulse received either from the apparatus under test or from a selected output of the patchboard.
Patent GB-1293668-A (GB)
Title: An hydrostatic structure
Inventor: CORSO GIORGIO
IPC: B63B35/44
Filed: 1970-11-09
Abstract: 1293668 Floating structures G CORSO 9 Nov 1970 [20 Nov 1969] 53163/70 Heading E1H A platform 1 supported above the high-tide wave crest level by rigid elements 3 connected to a hollow body 2 submerged below the lowtide weir trough level, and displacing a weight of water greater than the weight of the platform 1, body 2 and the maximum anticipated load on the platform, is anchored by cables 13 to the sea (&c) bed to prevent it moving or rotating. Two other cable 13 arrangements, Figs. 4 and 5 (not shown) are illustrated. The body 2 may have a tower 7 extending to a water-tight hatch (9) Fig. 2 (not shown) and containing a ladder (10) and a pipe (17) through which air and/or water may be pumped for ballasting during transport and while fixing the cables 13. A number of such platforms 1 and bodies 2 may be releasably joined, to form floating factories, buildings, car parks, airport runways, ports or pier supports. Platforms having a central vertical wall may be assembled in groups to form a breakwater.
Patent GB-1473860-A (GB)
IPC: E05F5/06
Filed: 1974-12-11
Abstract: 1473860 Stop for a door, or window T J H PEYCKE 1 Dec 1974 [13 Dec 1973] 53650/74 Heading E2X A stop for a door, window, or the like comprises an elongated body tapering from a thick end 4 to a thin end 6 and having a width substantially greater than the thickness at any point along the body, the body being formed from a resilient material and having a central cavity 20 extending from the thick end into the body by an amount sufficient to provide the stop with sufficient deformability for controlled deflection. As shown, the stop, moulded from rubber, has flat top and bottom converging faces 8, 10 which are spaced apart by the central cavity 20 and which have formed therein access openings 12, 14 and nail holes 16, 18 respectively and convex side faces 22. The stop can be secured in place with either of the faces 8, 10 uppermost.
Patent GB-1487236-A (GB)
Title: Armature for a direct current motor
IPC: H01R39/04
Filed: 1974-12-16
Abstract: 1487236 Dynamo-electric machines SWFSPEZIALFABRIK FUER AUTOZUBEHOER GUSTAV RAU GmbH 16 Dec 1974 [2 Feb 1974] 54210/74 Heading H2A In a D.C. motor armature comprising a shaft 23, a laminated core 20 and commutator segments 30 secured together by an injectionmoulded common body of plastics material, the cross-section of the plastics body in the region between the core and commutator is smaller than the corresponding cross-section at the commutator segments so as to leave a space to accommodate armature windings. As shown the core is separated from the shaft by a portion 18 of the plastics body. In a modification, Fig. 5 (not shown), the core laminations are held together by a hollow rivet (24) within which the shaft is a press fit. In both embodiments the plastics material does not extend to the surface of the commutator in the gaps between the segments.