baber/WOPTO huggingface dataset:
Patent GB-1518726-A (GB)
Title: Method of enhancing reproductive efficiency in nonhuman animals
IPC: A23K1/16
Filed: 1976-10-27
Abstract: 1518726 Animal feeds containing L-dopa SANKYO CO Ltd 27 Oct 1976 [4 Nov 1975 5 April 1976] 44665/76 Heading. A5B Animal feed compositions for promoting the reproductive efficiency of domestic animals and poultry comprises L-3, 4-dihydroxyphenylalanine (L-dopa) or a salt, ester, amide or enamine thereof, together with an animal feedstuff. The compositions may also contain a substance capable of inhibiting the in vivo degradation of L-dopa (e.g. an L-dopa decarboxylase inhibitor such as L-α-hydrazino-3, 4-dihydroxy-α-methyl-#-phenyl propionic acid or N-D, L-seryl-N-(2, 3, 4-trihydroxy benzyl) hydrazine). The invention also relates to methods for enhancing the reproductive efficiency of non-human animals by administering L-dopa or a salt, ester, amide or enamine thereof to the female animal.
Patent GB-978023-A (GB)
Title: Viewing window for telescopic devices
IPC: G02B23/08
Filed: 1962-11-28
Abstract: 978, 023. Viewing heads for telescopes or periscopes. CARL ZEISS-STIFTUNG, [trading as CARL ZEISS]. Nov. 28,1962 [Dec. 2, 1961], No. 44964/62. Heading G2J. A viewing head for a telescope or penscope comprises a metal body 6 and a roof window comprising two plano-parallel plates 2, 3, the roof edge 1 being inclined to two mutually perpendicular planes at equal angles. The angle of the roof is at least 90 degrees. Each plate may comprise two plates cemented together.
Patent GB-1516770-A (GB)
Title: Headphone cups incorporating audio transducers
IPC: H04R1/22
Filed: 1976-10-29
Abstract: 1516770 Earphones; headsets KOSS CORP 29 Oct 1976 [29 Oct 1975] 45035/76 Heading H4J A headphone (Fig. 1) has an audio transducer 1 and includes parts 15 which couple the rear of the transducer diaphragm 17 to a cup (3) Fig. 2 (not shown) containing the transducer 1. A resilient acoustic damping material 26 is placed over the ports 15 and is variably clamped by manually adjustable clamp 32, 29 (see also Fig. 3, not shown) to provide a selectable frequency response curve. A clamping plate 29 has a contoured surface which applies different compressive forces to different parts of the acoustic damping material 26 and the degree of compression in the material 26 is selected by rotation of the clamp 32, 29 and the material 26. In an alternative embodiment (Fig. 4, not shown) the clamp plate (43) is flat and a flange (45) is on a shaft (44) which extends rearwardly and has a knob (46) at its exposed end. By turning the knob (46) the compression of the damping material (42) is altered without rotation of the clamp plate (43). The transducer 1 may be of moving coil, electrostatic or piezoelectric type.
Patent GB-1439635-A (GB)
Title: Alcoholic breath simulator
IPC: G01N33/00
Filed: 1973-09-26
Abstract: 1439635 Alcoholic breath simulator BORG-WARNER CORP 26 Sept 1973 [16 Oct 1972] 45161/73 Heading G1B An alcoholic breath simulator comprises an enclosure containing an absorbent which has been impregnated with a predetermined amount of an ethyl-alcohol-containing solution of known concentration to produce an alcohol vapour concentration within said enclosure; and an inlet and an outlet to and from said enclosure wherein the introduction of an alcohol-free gas into said inlet results, when the enclosure is maintained at a given temperature, in the development and delivery at said outlet of a standard alcohol-gas sample to provide a simulated breath sample having a known alcohol concentration. A suitable simulator is shown in the accompanying Figure and comprises enclosure 10, absorbent 16, heating means 37, inlet tube 28 and outlet tube 32. In use, the enclosure and absorbent, containing an alcohol-containing solution and sealed by films, 15, is placed in the holder 20 and the films pierced by the pointed ends of the tubes 28 and 32. Alcohol-free air is supplied to the enclosure via trap 33 and an alcohol-gas mixture issues from the enclosure at the other end, which is connected to a breath analyzer. The alcohol-gas mixture contains a known concentration of alcohol and thus the breath analyzer can be checked.
Patent GB-939280-A (GB)
Title: Method and apparatus for forming fibres of glass and like heat softenable materials
Inventor: KLEIST DALE
IPC: C03B37/04
Filed: 1961-12-21
Abstract: 939,280. Glass fibre manufacture. OWENS CORNING FIBER-GLAS CORPORATION. Dec. 21, 1961, No. 45868/61. Class 56. Apparatus for forming glass and like fibres comprising a generally cylindrical centrifuge mounted for rotation and having a plurality of stream forming orifices in its periphery, includes a high output heater comprising an annular refractory element extending circumferentially around the centrifuge at a level above the uppermost orifices and having a generally concave surface directed towards and at least partially exposed in line of sight to the periphery of the centrifuge and a combustible gas supply manifold with means for feeding the gases for combustion along the concave surface of the element. As shown in Fig. 3, the centrifuge 60, mounted on a rotary shaft 63 by an upper slanting wall 61 and having orifices 67 in a peripheral wall 62, gives streams of glass 66 which are attenuated into fine fibres by gas blast from a manifold 64 with downwardly directed nozzle 65. Induced air is also drawn downwardly, as shown by arrows, between the nozzle 65 and a control ring 76. The shaft 63 is cooled by a jacket 74 and protected from the heat and gases by an inner ring 75. The heater comprises an annular refractory element 72 with a concave surface 73, quarter-circular in cross section, which faces towards the wall 62 and the lower part of wall 61 of the centrifuge 60. Combustible gases to heat the element 72 are passed from a manifold 68 through a passage way 69 to orifices 71 in a plate 70 adjacent the upper part of the element 72. In a modification, the rings 75, 76 are dispensed with and the heater element positioned nearer the centrifuge and extended in a continued curve to form the gap adjacent the centrifuge. In a further modification, the heater element is a semi-circle and the gases are fed to inlet orifices adjacent the outer lower edge of the element. As shown in Fig. 5, the element comprises two annular refractory elements 125, 126, having surfaces 127, cut back, and 128 curved inwardly giving a throat 129 through which the heat is directed on to thee entrifuge walls 107, 108. The elements 125, 126 are heated by gases from a manifold 120 having a fluted orifice former 121 extending through openings 122 in a refractory block 123 with a domed surface 124 to direct the flames on to the elements 125, 126. In this embodiment, the induced air current, shown in dotted arrows, is heated by a gas control heater 116. Reference has been directed by the Comptroller to Specification 839,482.
Patent GB-1004222-A (GB)
Title: Improvements in or relating to separating mechanism in or for mixture separating apparatus
Inventor: PALMER JOHN
IPC: B07B13/00
Filed: 1961-12-22
Abstract: 1004,222. Endless conveyers. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Dec, 24, 1962 [Dec. 22, 1961], No. 45972/61. Heading B8A. [Also in Division B2]. Potatoes are sorted from stones &c. by the action of a transversely disposed row of fingers 36 which are deflected or not according to the result of a scan by a sensing unit 16 as the potatoes are discharged from an endless conveyer belt 18. Each finger 36 is connected to a respective pneumatic motor 38 (Fig. 4). The depth of the potatoes on the belt 18 may be regulated by the action of a series of rollers 20 which may be driven. An adjustably mounted rotating comb-like paddle 25 may be associated with the rollers 20 to assist the passage of large objects and so prevent them from being held on the upstream side of the rollers 20. A transistor current-amplifier for the sensing unit is described (Figs. 5, 6, not shown).
Patent GB-460568-A (GB)
IPC: B01D21/00
Abstract: 460,568. Gravity-separation apparatus. BURGESS, A. F. (Link-Belt Co.) April 23, 1935, No. 12205. [Class 111] The sludge deposited on the bottom of a settling tank is moved radially by a conveyer, which is arranged to turn bodily about the central axis of the tank. As shown sludge is collected by a squeegee D<5> fixed to a frame D suspended from a turntable C<3> turning on roller bearings on the top of a central pier A<1> in the settling-tank A. Sludge collected by the squeegee is pushed towards a discharge trough A<5> by flights D<6> on chains D<7> passing round sprockets D<8>, D<9>, D<10>, supported in the frame D. The rotating parts are driven by a motor on the turn-table the motor being geared to a pinion C<6> which meshes with a gear C<1> fixed to the top of the pier. The conveyer chains D' are driven by chain and sprocket gearing from the same motor. The liquid under treatment is supplied to the tank through a passage A<2> in the pier. the upper end of which is pierced with apertures and surrounded by a baffle B, formed of rings or longitudinal rods spaced apart. The baffle directs the liquid downwards so that solid matter falls towards the trough A5. The bottom of the trough A<5> is made to slope downwards towards the sludge outlet pipe A<7>. Sludge just above the trough is agitated by radial blades E<1> fixed to the frame D, and the sludge in the trough is moved toward the outlet by chains E<2> suspended from the frame. Clear liquid flows away over an adjustable peripheral weir A<10>. As shown, the frame D has a counterweight D<1>, but modified apparatus is described in which a second conveyer balances the one shown. In another modification the sludge collecting devices are suspended from a bridge pivoted at one end on the central pier and supported at the other by wheels on a track on the wall of the tank. A motor carried by the bridge drives a wheel which gears with a circular rack on the tank wall and thus causes the bridge to rotate. With apparatus as shown in Fig. 14 the liquid under treatment enters the tank from a peripheral trough O<1> and clear liquid overflows into a circular trough O<3> connected by radial troughs to an outlet passage O<6> in the central pier. The sludge is moved radially outward by a conveyer L<1> and drawn up a pipe L<3> by a pump L' which delivers it through a pipe L<6> to an annular discharge trough L<7>. It is stated that a screw conveyer may be used instead of a flight conveyer. Specification 460,569 is referred to.
Patent GB-1123072-A (GB)
Title: Packages and containers
Inventor: POWELL DENNIS BADEN
IPC: B65D75/26
Filed: 1964-11-12
Abstract: 1,123,072. Seaming non-metallic sheet material. ROBINSON WAXED PAPER CO. Ltd. 11 Nov., 1965 [12 Nov., 1964], No. 46219/64. Heading B5K. [Also in Division B8] In a package formed from two parts, each having a sealing medium on its inner surface, which are sealed together around an article, at least a part of the seal is degraded by ionizing radiation to produce a readily openable seam. In one embodiment, two sheets 2, 3, Fig. 2, of aluminium foil, laminated with cast or orientated polypropylene film, are heat sealed together in an area 5, Fig. 1 (not shown), which surrounds an inserted article, e.g. a blade 4, the area 5 being also preferably crimped. Two unadhered portions 6, 7 are provided, which can be gripped to initiate opening. The whole package is then irradiated to degrade the sealed areas and to sterilize the package. The container may comprise a dished container and a cover (not shown), both parts bearing a sealing medium on their inner surfaces. Alternatively, if it is not required to subject the package contents to radiation, an open container including sealed areas may first be formed, which is subjected to radiation, an article being then inserted and the package closed by a further seal. The base material for the packaging may be paper, polyester film, polyamide film, polyolefin film, cellulose acetate film, regenerated cellulose film or a combination of the above. Thus the package may be fully opaque, transparent or partially opaque or transparent. The heat sealing may be carried out by heated bars, or impulse dielectric, induction or ultrasonic heating. Gamma-, X-, or electron radiation may be used.
Patent GB-1271819-A (GB)
Title: Improvements in film cooling of structural members in gas turbine engines
IPC: F01D5/18
Filed: 1969-09-19
Abstract: 1,271,819. Turbine and like blades. GENERAL ELECTRIC CO. Sept, 19. 1969 [Sept. 27, 1968], No.46220/69. Heading F1T. A gas turbine or compressor blade 24 or other member has a common chamber 42 supplying cooling air through passages 51, 53, 54 to effect film cooling of the external surfaces of the member. Since the convex surface 60 is subject to a lower static pressure than the concave surface 58 each passage 54 has a portion 64 of increased crosssectional area adjacent surface 60 to reduce the excessive coolant flow velocity which would otherwise result. The portions 62, 64 of passage 54 may be of circular, elliptical or rectangular cross-sections and the passages may be inclined in a radial direction. The blade 24 also includes chamber 40 inter-connected by passages 48 and supplied with coolant from further passages (46), Fig. 2 (not shown), in the blade root. Passages 50 cool the trailing edge 52.
Patent GB-1484766-A (GB)
Title: Air-fuel mixture control apparatus for carburetted internal combustion engines
IPC: F02M7/24
Filed: 1975-11-07
Abstract: 1484766 Spray carburetters NISSAN MOTOR CO Ltd 7 Nov 1975 [8 Nov 1974] 46234/75 Heading F1H [Also in Division G3] In an air/fuel ratio control system for an I.C. engine having a carburetter with an air bleed for mixing air with fuel before the induction passage, the air bleed is controlled by an electromagnet valve in response to an exhaust gas sensor and the fuel is controlled by a second electromagnet valve in response to at least one other engine operating parameter sensor. The other engine parameters are throttle setting from transducer 23, intake vacuum from sensor 24, engine temperature from 25 and engine speed from 26. Their outputs are modified by respective function generators at 22, whose characteristics are such that they are effective particularly at high and low extremes of the measured parameter Figs. 4a-d (not shown). In addition the throttle position signal is differentiated in a path parallel to its function generator. The exhaust gas is sensed at 18 e.g. by an oxygen sensor, whose output is compared at 19 with a reference and the result amplified by a proportional plus integral controller 29. This especially controls valves 9, 10 in main and auxiliary air bleed channels 13, 14 but is also combined, via its own function generator, with the output of the other function generators to control the fuel valve 11. The valves are controlled in on/off manner by variable width pulses obtained by combining the analogue control signals with a sawtooth waveform generated at 30, also Figs. 6, 7 (not shown). The comparator and integrator are described, Fig. 5 (not shown); the comparator is preceded by an F.E.T. acting as a buffer.
Patent GB-1095166-A (GB)
Title: Improvements in or relating to the manufacture of heterofilaments
Inventor: HUDGELL ALFRED WILLIAM DAVID
IPC: D01D5/34
Filed: 1964-11-18
Abstract: 1,095,166. Conjugate filaments. IMPERIAL CHEMICAL INDUSTRIES Ltd. Oct. 25, 1965 [Nov. 18, 1964], No. 46896/64. Heading B5B. A sheath-core heterofilament is formed by the simultaneous extrusion of at least two melts or viscous solutions of different polymeric components through a common extrusion orifice in a sheath and core relationship. A spinneret assembly comprises a spinneret plate 2, containing extrusion orifices 5 in counterbores 6 which co-operate with spinneret channels 7, and a back plate 3 spaced from plate 2 to give constricted gaps 9. Plate- 3 contains corecomponent counterbores 10 and extrusion orifices 11 and sheath-component channels 12 and 12' co-operating with sheath bores 17. Channels 12, 12' and 7 form relatively unconstricted zones separated by constricted zones 9. The sheath and core components meet to form an interface above orifices 5, and the components are then extruded as sheath-andcore hetero-filaments through orifices 5. The unconstricted zones may take the form of a series of channels which may be formed in the back plate, the spinneret plate, or part in each, or in a spear plate between the back and spinneret plates. The channels and orifices may be in parallel rows or in a series of concentric circles. The sheath may comprise one component only or two different components, one from channels 12 and one from channels 12'. The crosssection of the heterofilaments, or of the core, may be circular or non-circular; the sheathcore arrangement may be concentric or eccentric, or the core may protrude through the sheath to form part of the surface, or may protrude at two points, forming a sandwich heterofilament. The term " different polymeric components " includes polymeric materials which are the same except for their M.W., or M.W. distributions, or which differ in any other manner which would result, if they were spun separately, in filaments having significantly different physical properties or appearance. The use of a polyamide and copolyamide is exemplified.
Patent GB-1509849-A (GB)
Title: Switch for switching coaxial connections
IPC: H01P1/12
Filed: 1976-11-11
Abstract: 1509849 Switching coaxial connections COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL SA 11 Nov 1976 [21 Nov 1975] 46998/76 Headings H1N and H1R A switch for switching coaxial connections comprises a coaxial "input" terminal 1, a plurality of coaxial "output" terminals 2 to 7 and a corresponding plurality of electrical connections between the "input" terminal and each of the "output" terminals, each connection being provided by a pair of relays 21, 22 to 71, 72 connected in series, the relays and interconnecting leads being housed in the compartments of a hollow metal block which is internally divided into a plurality of shielded compartments distributed in two layers (Figs. 2, 4 and 5, not shown), each layer having a cover (14) opening on to one of the major surfaces of the block and containing the relays and interconnecting leads, relay operating terminals 19 and the coaxial terminals being situated on one or more of the minor surfaces of the block. The relays 21, 31, 41 are located in a main compartment 9 and relays 22, 32, 42 in peripheral compartments 11, 10, 12 respectively in one layer, Fig. 3, while relays 51, 61, 71 are in a corresponding main compartment and relays 52, 62, 72 in corresponding peripheral compartments in the other layer, the main compartments communicating via a central pit (13) in which the connection between the input terminal and the relays 21, 31, 41, 51, 61 and 71 is made. As described the relays are miniature mercury relays in which a column of mercury is moved by expansion of a gas heated by a filament, but other types of relay such as dry reed relays, mechanical relays or relays based on P.I.N. diodes may alternatively be used.
Patent GB-1019042-A (GB)
Title: Glues comprising wood protection agents
IPC: C09J161/20
Filed: 1963-11-28
Abstract: Adhesive compositions for composite wood materials comprise the wood protection agents of the parent Specification (ammonium fluoroborates obtained by reacting 1 mole of the bifluoride of ammonia or an amine or quaternary ammonium base with 2 moles boric acid in the presence of water and optionally excess nitrogen base) in admixture with a glue.  Specified glues are aqueous urea-formaldehyde resin solution, melamine-formaldehyde resins and mixtures thereof.  In the example such an adhesive is used to make chip-board.ALSO:In an example an ammonium fluoroborate having a B : F ratio of about 1 : 1 as claimed in the parent Specification is prepared by adding 6 mol. hydrofluoric acid to a mixture of 6 mol. boric acid and 3 mol. ethanolamine.
Patent GB-1357112-A (GB)
Title: Gas turbine engine
IPC: F02C7/14
Filed: 1970-10-03
Abstract: 1357112 Gas turbine engines ROTAX Ltd 20 Sept 1971 [3 Oct 1970] 47136/70 Heading F1G A gas turbine engine for use in an aircraft comprises inlet guide vanes also a dynamo electric machine which is cooled by cooling fluid, at least one of the vanes being provided with a passageway through which the cooling fluid can be circulated whereby the cooling fluid is cooled. The engine shown in part comprises hollow inlet guide vanes 20 also an inlet fairing cone 12 within which is mounted an electric machine such as an alternator also a constant speed drive 11. An annular fluid reservoir 14 is disposed around the casing of the constant speed drive. A hollow member 21 is disposed in the guide vane 20 so as to define three passageways 22, 23 24. A pump 17 takes fluid from the reservoir 14 and supplies it to a coil 18 disposed round the stator of the alternator, the fluid being withdrawn by scavenge pump 19 and passed through the passageways 22, 23 whereby the cooling fluid is cooled the fluid then returning to the reservoir. The guide vane is heated by the flow of the cooling fluid whereby the vane is de-iced.
Patent GB-1272119-A (GB)
Title: New fibre-reactive halotriazine dyes, process for obtaining the same and process for dyeing textile fibres with said dyes
IPC: C09B62/04
Filed: 1969-09-26
Abstract: 1,272,119. Diaminochlorotriazines. INTERQUIM SOC. ANON. INDUSTRIAL Y COMERCIAL. 26 Sept., 1969 [1 Oct., 1968], No. 47620/69. Heading C2C. [Also in Division C4] 2,6 - Diamino - 6 - chlorotriazines may be prepared (a) by reacting cyanuryl chloride with p-sulphophenylglycine, and then reacting the product with the sodium salt of 2-amino-5- naphthol-7-sulphonic acid, (b) by reacting cyanuryl chloride with N-hydroxyethylaniline hydrochloride and then reacting the product with the sodium salt of 2-amino-5-naphthol-7-sulphonic acid, and (c) by reacting cyanuryl chloride with the sodium salt of phenyl glycine and then reacting the product with the sodium salt of 1,3 - phenylene - diamino - 4 - sulphonic acid. The products are used as intermediates in the preparation of dyestuffs.
Patent GB-1371097-A (GB)
Title: Engines
IPC: F02C5/12
Filed: 1971-10-06
Abstract: 1371097 Gas turbine engines; jet propulstion units C A BUDD 16 Oct 1971 [7 Oct 1970] 47644/70 Headings FIG and F1J The invention relates to an engine comprising an air compressor from which pressurized air passes to a combustion chamber, gases passing from the chamber to a utilisation device such as a gas turbine, the combustion chamber having non- return air inlet means. In Fig.1, the engine comprises compressor 62, combustion equipment 63 and a turbine 64 connected to drive the compressor through shaft 69. The combustion equipment comprises a flame tube 63 having a non- return inlet valve 77, also fuel injection means 67 and an igniter 68. The combustion chamber communicates by way of a duct 66 with a reservoir 81 from which the gases pass to inlet nozzle 82 of the turbine. A number of concentric baffles are disposed in the reservoir. Slugs of combustion gas and air pass in succession from the combustion chamber. The air compressor and the turbine may be dispensed with, the unit operating as a pulsating jet propulsion unit