baber/WOPTO huggingface dataset:
Patent GB-1390287-A (GB)
Title: Camera shutter operating mechanism
IPC: G03B9/10
Filed: 1972-12-27
Abstract: 1390287 Preview shutter opening SEIKO KOKI KK 27 Dec 1972 [28 Dec 1971] 59599/72 Heading G2A Manual operation of a shutter opening preview lever or an associated link rotates a spring-biased shutter blade-operating ring to the open position whereupon the preview device is releasably held (directly or indirectly) by a manually operated spring-biased shutter release lever effective for shutter release only when the preview device has been released, the preview device being released (a) in two stages by limited manual depression and release of the shutter release lever or (b) by directly effected manual return. In Fig.1, a preview lever 9 has a manually operated arm 9e, an arm 9b which effects rotation of a ring abutment pin 5e, and an arm 9g having abutment portions 9c and 9d which may be releasably held by shutter release lever abutment portions 8e and 8f respectively. On shutter release operation, lever 8 rotates a spring-biased detent lever 2 clockwise, freeing a spring-biased driving lever 1. In Fig.5, the preview lever 9 has a manually operated slidably mounted link 10 having an abutment portion 10c and abutment pin 10e which may be releasably held by shutter release lever abutment portions 8e and 8f respectively. The link 10 also has an abutment portion 10d which may engage an abutment portion 11e of a lock plate 11 associated with lever 8. In Fig.7, the preview lever 9 is directly manually operated and effects rotation of a curved link 10g causing a release lever abutment portion 8e to ride over a land 10m on link 10g. Subsequent depression of release lever 8 effects partial return of curved link 10g, an abutment portion 8f contacting land 10m and an abutment portion 11c contacting a shoulder 10p.
Patent GB-1351582-A (GB)
Title: Ion source
IPC: H01J27/04
Filed: 1972-12-29
Abstract: 1351582 lon sources PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 29 Dec 1972 [3 Jan 1972] 60032/72 Heading H1D An ion source, e.g. for a neutron generator, comprises a first apertured cathode 11, a second cathode 12 having an ion exit aperture, an anode 10 between the cathodes, means, such as permanent magnets 13, 15 for producing a magnetic field along direction 14 and a collector electrode 22 on the side of the first cathode remote from the anode for collecting ions of the undesired polarity which are accelerated in the opposite direction to arrow 14 and pass through the central bore of permanent magnets 13. The collector preferably has a funnel-shape recess 23. The ion source contains deuterium and tritium in equal quantities at 5 x 10<SP>-3</SP> mmHg which is maintained by a source 2 comprising finely divided titanium which absorbs the gases and releases them on heating. An ionization manometer 9 is provided. The target comprises a 5 Ám layer 8 of titanium on a base 7 of copper.
Patent GB-1237228-A (GB)
Title: MANNICH BASES OF alpha-6-DEOXY-5-OXYTETRACYCLINE
IPC: C07C233/00
Filed: 1968-12-23
Abstract: 1,237,228. Mannich bases of α-6-deoxy-5-oxy tetracycline. CHAS. PFIZER & CO. Inc. 23 Dec., 1968 [25 March, 1968], No. 61206/68. Heading C2A. Mannich bases of α-deoxy-5-oxytetracycline having the formula wherein R is amino, #-carhoxyalkylamino, #- amino- #-carboxyalkylamino, #-carboxamidoalkylamino, # - amino - # - carboxamidoalkylamino, or NR 1 R 2  wherein R 1  is C 1-17  alkyl, benzyl, phenethyl, cyclohexyl, C 2-4  hydroxyalkyl, #-aminoalkyl, #-alkylaminoalkyl or #- dialkylaminoalkyl (the above mentioned alkyl groups having from 1 to 6 carbon atoms); R 2  is hydrogen or R 1 ; R 1  and R 2  when taken together in combination with the associated amino group are piperidino, pyrrolidino, morpholino, piperazino, N-methylpiperazino, 2,6-dimethylmorpholino, N - (# - hydroxyethyl)piperazino or and their acid addition and base salts may be prepared by reacting a compound having the formula with a compound ZR or its acid addition salt, Z is H in the presence of formaldehyde or its equivalent as reactant or Z is Y-CH2- wherein Y is chloro, bromo, hydroxyl, C 1-6  alkoxyl, SO 3 -, hydrosulphido, phthalimido, succinimido, alkyl or acyl malonic ester group in the absence of formaldehyde, and, if desired, forming an acid or base salt of the product. When formaldehyde or its equivalent is a reactant the reaction may be carried out in an aqueous medium which may contain a water-soluble organic solvent at 0‹ to 30‹ C. The alkali metal, e.g. Na and K, ammonium, alkaline earth metal, e.g. Ca salts and salts with organic amines as well as salts with hydrochloric, sulphuric, phosphoric, acetic, butyric, palmitic, oleic, citric, gluconic, lactic, tartaric, ascorbic, pantothenic, penicillins, succinic half ester of D-(-)-threo-2-dichloroacetamino - 1 - p - nitrophenyl - 1,3 - propanediol, phytic and maleic acids are referred to. Pharmaceutical compositions for parenteral and oral administration comprise the above tetracycline derivatives or salts thereof and a carrier. Reference has been directed by the Comptroller to Specification 1,178,358.
Patent GB-1298567-A (GB)
Title: Thermosettable resins
IPC: C08G73/12
Filed: 1969-12-17
Abstract: 1298567 Polyimide-amine resins TORAY INDUSTRIES Inc 17 Dec 1969 [19 Dec 1968] 61616/69 Heading C3R A polymeric precursor of a thermally-stable polyimide-amine resin substantially consists of a plurality of units derived from an at least diprimary amine alternating with units derived from an optionally substituted maleic acid monoester or anhydride, R 1  and R 2  representing the carbon atoms of the acid component and substituents when present. One mole of diamine may be amidized with 1 or 2 moles of anhydride or mono-ester and polymerization then effected by addition of -NH 2 , from the amidization product or further diamine, to the double bond. Reaction may be effected in bulk or solution. Specified optional substituents include hydroxy, alkoxy, carbamoyl and cyano. Numerous reactants and solvents are mentioned. Aqueous solutions of the precursor may be obtained by neutralizing it with ammonia or an amine. Materials which may be incorporated with the prepolymer prior to cure are organic plasticizers; fillers, e.g. powdered or fibrous silica, mica, TiO 2 , CaCO 3 , diatomaceous earth, clay, talc, glass, asbestos, polyimides, polybenzoxazoles and polybenzimidazoles; and thermal stabilizers, e.g. phosphorus acids and esters or oxides of arsenic, antimony and manganese. Examples illustrate the preparation and curing of solutions obtained by heating maleic anhydride, its reaction product with methanol or dimaleamide acids of various diamines with diamines in solvents. The preparation of the dimaleamide acids is not described and no evidence is provided to indicate the structure of the products obtained in the examples. Uses.-Specified uses for the precursor are dry-cast films which may then be cured; prepregs of cloth or glass fibre, cellulose, nylon, polyester or mica-glass cloth tape for fibrereinforced articles or use as an adhesive interlayer; and as an impregnating varnish for magnet coils.
Patent GB-1276030-A (GB)
Title: Method of and apparatus for dispersing particulate materials in a liquid
Inventor: ABBOTT JOHN
IPC: B01D21/01
Filed: 1969-12-23
Abstract: 1276030 Dispensing particles in liquid COAL INDUSTRY (PATENTS) Ltd 8 Dec 1970 [23 Dec 1969] 62655/69 Heading B1C Apparatus for dispersing polyacrylamide particles in water comprises a vertical or steeply inclined vortex chamber 2 having a larger diameter portion 4 to which water is supplied tangentially, forming a film on a smaller diameter portion 8, on to which the particles are discharged by a vibrating conveyer 30. The vortex chamber discharges to a pipe 26 leading to a draft tube 16 cooperating with an impeller 14. In operation sufficient water is introduced to cover the impeller, which draws air down the draft tube 16 and pipe 26; the particles are then supplied and dispensed; and additional water is added to fill the tank 12. The quantity of particles supplied is determined by the capacity of the measuring chamber 34. The mixture is supplied to a stock tank (not depicted) fall of level in which causes the tank 12 to discharge and initiates automatically a cycle of mixing operations. In modifications the inner guard tube 10 of the vortex chamber (see also Figs. 1 and 2, not shown) may be dispensed with, and the vibrating conveyer 30 may be replaced by a screw or pneumatic conveyer.
Patent GB-662856-A (GB)
Abstract: 662,856. Locking levers. BENDIX AVIATION CORPORATION. Jan. 6, 1949 [March 17, 1948], No. 420/49. Class 80 (iii) [Also in Groups XXV, XXXIII and XXXV] A stick controller for an automatic pilot system as described in Specifications 662,850 and 662,851, [both in Group XXXV], comprises a control arm 28 mounted for oscillation about two mutually perpendicular axes 26 and 21, 22. The stick is held in any desired position by the action of fixed discs 63 and discs 64 movable with the axis of rotation, the discs being interspersed with felt washers 66 and spring biased to form a friction brake for the stick. A friction brake is provided for each axis of rotation. The stick is locked in the neutral position, i.e. perpendicular to both axes by a spring biased plunger 112 co-operating with a hole in the first of the fixed discs 61. By depression of a central control rod 37 spring mounted in the stick 28 and the action of a bracket 107 and co-operating pin 116 on the plunger the lock is released. A lock is provided for both friction brakes, both being released upon depression of the rod 37.
Patent GB-2028531-A (GB)
Title: Stroboscope
IPC: F02P17/06
Filed: 1978-08-21
Abstract: A xenon lamp 24 excited by a lead from an automobile engine H.T. circuit produces a stroboscopic beam which is used to align a timing mark on the crank shaft pulley with a reference mark on the engine casting. The xenon lamp also illuminates the oscillatory end portion 22 of a wire 14. The frequency of oscillation of the end portion 22 is adjusted by a hand wheel 20 until the end portion 22 appears to be stationary. A pointer 31 then indicates the value of the engine rotational speed. <IMAGE>
Patent GB-2005993-A (GB)
Title: Cleaning apparatus for submerged surfaces
IPC: E04H4/16
Filed: 1978-10-06
Abstract: The invention provides a suction sweeper, especially for cleaning swimming pools. The sweeper has a head 1 provided with an inlet 2 and an outlet 3 with a passage 13 connecting said inlet and outlet. The inlet and outlet axis are arranged at an angle of between 30 DEG  and 60 DEG relative to each other and an oscillatable valve 14 is located in the head to alternately open and close the passage. A baffle plate 17 is provided in the head between the inlet and the valve to form a restricted suction opening 18. The outlet is adapted to be connected to a hose 12, the arrangement being such that the latter can swivel. <IMAGE>
Patent GB-2008083-A (GB)
Title: Process for preparation of lead carbonate
IPC: C08K3/26
Filed: 1978-11-13
Abstract: Lead carbonate is prepared by rotating a rotary mill containing granular metallic lead, a liquid medium and a gas containing oxygen and optionally including carbon dioxide under conditions such that at least a part of the granular metallic lead wetted with the liquid medium is exposed to the gas phase above the liquid medium and the granules of metallic lead are frictionally contacted with one another in the liquid medium to thereby form a dispersion of fine particles of lead carbonate in the liquid medium or when oxygen alone is present, a dispersion of fine particles of lead monoxide. In the latter case, these particles are subsequently contacted with carbon dioxide to convert them to lead carbonate. The thus produced lead carbonate may be used as a pigment, a stabiliser for vinyl chloride resins or as a rust-preventing agent in paints.
Patent GB-2011166-A (GB)
Title: Manufacture of fluorescent lamp tubes
IPC: H01J9/24
Filed: 1978-11-20
Abstract: In sealing mounts 25 to fluorescent lamp tubes 10 on horizontal sealing machines (in which sealing heads are disposed at each end of horizontal tube 10, e.g. where the heads are mounted on rotating turret 12) between a mount sealing position in which it is coaxial with the lamp tube (Fig. 1) and a mount loading position (Fig. 2) which is angularly displaced (e.g. by about 90 DEG ) in a plane normal to the direction of travel of the sealing heads from the mount sealing position and in which it can accept mounts 25 from a mount conveyor 31 disposed externally of the sealing machine. <IMAGE>
Patent GB-2011369-A (GB)
Title: Treatment of Aqueous Waste Material
IPC: C02F3/12
Filed: 1978-11-21
Abstract: Nitrified aqueous waste material containing activated sludge is mixed with aqueous waste material which has yet to be so treated. The nitrates in the aqueous material are reduced to nitrogen by anoxic denitrifying bacteria. Nitrogen is extracted from resultant denitrified liquor. This is then oxygenated and subjected to an activated sludge nitrifying treatment. Incoming aqueous waste material entering through pipe 2 is mixed with nitrified activated sludge-containing from pipe 42. The resultant mixture is subjected to anoxic treatment by denitrifying bacteria in a closed tank 10. Nitrogen formed as a result is stripped from the liquid by the action of vacuum pump 26 as the liquid is siphoned into a vessel 38 in which it is treated by aerobic nitrifying bacteria. (The liquid being siphoned is oxygenated in the lower leg 20 of the siphon). Clear liquid is run off from the vessel 38 over weir 40. Liquid containing sludge is withdrawn from the vessel 38 through pipe 42. <IMAGE>
Patent GB-2014028-A (GB)
Title: Battery cage cleaning system
IPC: A01K31/04
Filed: 1979-01-12
Abstract: A battery cage cleaning system is provided which comprises apparatus capable of attachment to battery cages of differing width in that it comprises side frame members 24, 26 between which extends a wind-up spool 20 for the belt 18, and laterally displaceable brackets 30 adapt the apparatus for connection to a battery cage. A multi-tier cage may be provided with spaced upright guide rods 32 to which the brackets may be anchored. A said apparatus is provided for each tier and is preferably slidable vertically thereon before the brackets are connected to the guide rods. <IMAGE>
Patent GB-2054114-A (GB)
Title: Construction of refrigerators and freezers
IPC: F25D23/06
Filed: 1979-02-09
Abstract: Refrigerator or freezer cabinets comprising an inner moulded shell of synthetic resin plastics material, exterior panels spaced away from the inner shell and thermal insulating material of the self-foaming synthetic resin plastics material type in the whole interspace between the inner shell and the exterior panels, the back panel of a refrigerator cabinet or the base panel of a freezer cabinet being formed of a perforated laminate of aluminium foil and card or paper backing, are constructed so as to have the aluminium foil surface of the laminate in contact with the thermal insulating material in order to eliminate water or water vapour penetration to the thermal insulating material through the perforations, thus avoiding deterioration of the thermal insulating material and allowing any external condensate to be more readily dispersed before it can accumulate undesirably.
Patent GB-2021945-A (GB)
Title: Improved display unit for posters or the like
IPC: A47G1/06
Filed: 1979-02-27
Abstract: A display unit is provided which comprises a hollow, box-like back panel (10) on which a frame (11) is mounted by engaging an upper, rearwardly-extending flange (21B) of the frame over an upper, rearwardly- extending lip (19) of the back panel so that the frame (11) is hingeable away from the back panel (10) about the lip (19) for the insertion or removal of a poster or the like sandwiched between a front, transparent panel (12) in the frame (11) and a front surface (15) of the back panel. <IMAGE>
Patent GB-2048177-A (GB)
Title: Improved vehicle frame
IPC: B62D21/18
Filed: 1979-04-19
Abstract: A frame for a kart, which by definition does not have an elastic or hinged suspension device, is provided with a configuration which supports the rear wheels (2) in bending and torsional modes. This is achieved by providing frame members (14) extending between transverse frame members (13) and (6) and bending outwardly at (16) to carry bearing supports (18) for the rear axles. Flexing of these frame members is accommodated by universal joints (28). <IMAGE>
Patent GB-2019747-A (GB)
Title: Developing latent electrostatic images using a liquid toner and a development electrode
IPC: G03G13/10
Filed: 1979-04-20
Abstract: A method and apparatus for developing a latent electrostatic image on the surface of an electrophotographic member 11 using an A.C. bias voltage 29 applied between the electrophotographic member and a development electrode 21; the A.C. voltage eliminates convection cells in the developer liquid 23, thus avoiding irregular development of the image, which would otherwise occur. <IMAGE>
Patent GB-2025576-A (GB)
Title: Electromagnetically operable fluid control valves.
IPC: F16K31/06
Filed: 1979-04-26
Abstract: The valve includes a cup-shaped housing 10 having a port 12 in the base wall. A tubular valve element 14 is engageable with the base wall about the port under the action of a spring 21. A solenoid assembly 17 when operative lifts the valve element from the base wall to allow flow through the port. The valve element 14 has a location element 16 slidable within the bore therein to locate the valve element in the closed position thereof. <IMAGE>
Patent GB-2021421-A (GB)
Title: Improvements to or relating to patient ventilators
IPC: A61M16/20
Filed: 1979-05-08
Abstract: The present invention relates to a delivery tube array which is used to connect a patient to a lung ventilator. A problem arising in the use of such ventilators is that exhaled air cannot be exhausted directly to the atmosphere since a normal outlet valve would also serve to exhaust air delivered on the compression stroke of the ventilator. The invention overcomes this problem by the introduction into a delivery tube array of a relief valve 14, a non-return valve 12 and a bleed-pipe 17 which connects the relief valve to a point up-stream of the non-return valve. Such an arrangement ensures that the relief valve opens only when the pressure within the patient's lungs is greater than the pressure upstream of the non-return valve. <IMAGE>
Patent GB-2028457-A (GB)
Title: Corner Joint
IPC: A47B47/00
Filed: 1979-08-01
Abstract: Corner joints are used to interconnect side walls at right-angles to each other in a display stand, room divider or the like. Such a corner joint has at least two slots (15, 16) for the slide-in connection of the side walls and outer faces (39, 40, 41) of the joint opposite the slots have chamfered, preferably rounded, edges. <IMAGE>
Patent GB-2035492-A (GB)
Title: Vehicle braking systems
IPC: B60T8/18
Filed: 1979-11-20
Abstract: A motor vehicle with fluid pressure operated brakes has the ratio of the braking efforts at the front and rear wheels varied in dependence upon pedal effort, for retardations at least up to 0.15 g and preferably up to 0.25g. In one version, a pressure control valve 6 in the rear brake line is controlled in accordance with the pressure in the front brake line. This enables the braking to be spread more uniformly than hitherto between the front and rear wheels for normal in- service decelerations. As an alternative, a footbrake valve may be provided wherein the ratio of the output pressures to the front and rear brakes is varied in accordance with pedal effort. The ratio between front and rear brake pressures may also be varied in dependence on axle load. <IMAGE>
Patent GB-2038251-A (GB)
Title: Apparatus for generating servo pressure signals for aircraft feel simulation
IPC: B64C13/46
Filed: 1979-12-17
Abstract: The apparatus 15 has a valve 30 which controls the magnitude of a servo pressure in a line 14 to an actuator 13 which applies a feel force to the control column 12 of an aircraft. The valve 30 is positioned, through a lever 32 by diaphragms 35,40 which are both responsive to aircraft pitot and static pressures but act in opposition. Diaphragm 40 does not coact with the lever 32 until a predetermined level of the difference between pitot and static pressures is reached, and thereafter the response of the apparatus to this pressure difference is dependent on the bias applied by a spring 43, this bias being variable by a cam 46 responsive to the trim position of the aircraft tailplane 47. The apparatus 16 is duplicated by an identical channel 17. Should the servo pressures provides by the two channels differ by more than 25% at the greater pressure of the two, a switch arrangement 55 activates an alarm. <IMAGE>
Patent GB-2039769-A (GB)
Title: Apparatus for separating suspended solid particles from a liquid
IPC: B01D35/20
Filed: 1980-01-22
Abstract: Apparatus for separating suspended solid particles from a liquid comprises a settling tank in which at least one inclined moving band filter 1 is placed. The or each filter includes at least one vacuum chamber 9 over which passes a movable screen fabric band from which the solid is subsequently scraped at 12. An outflow chamber 4 having a perforated fixed bottom 3 is arranged quid above the or each filter with the bottom parallel to the filter, and clear liquid leaves via the perforations. Chamber 4 may enclose parallel baffles (Fig. 5 not shown). <IMAGE>
Patent GB-2046724-A (GB)
Title: A Double Chromate of Silver and of Bismuth and a Method of Preparing and Applying said Chromate in Electric Cells
IPC: C01G37/14
Filed: 1980-03-24
Abstract: A chromate having a homogenous structure with a formula of AgBi(CrOx)2 when x is less than 4 and greater than or equal to about 3.7 is prepared by heating the stoichiometric double chromate AgBi(CrO4)2 to a temperature between about 200 DEG C and about 425 DEG C. This chromate is used as positive active material in an electric cell.
Patent GB-2076861-A (GB)
Title: Process of an apparatus for spinning a bundle of textile fibres having no appreciable twist
IPC: D02G3/36
Filed: 1980-05-27
Abstract: A bundle of textile fibres 1, e.g. a sliver or roving supplied by a drafting apparatus 2, is passed over a frictional surface 7 provided by a rotary disc 6 so that the surface 7 moves transversely to the path of movement of the bundle 1. The resultant twist is prevented from running back into the drafting apparatus 2 by exit rollers 5, and from running forward to take-up bobbin 16 by draw-off rollers 13, 14. The resultant product is a fancy thread containing a false twist but on which the sum total of the residual twist is substantially zero. Thread 17 is used for threading-up the apparatus, but such a thread may also be fed to the disc 6 to form a composite with the bundle 1. Modifications provide for two or more bundles to be supplied simultaneously to the same disc 6 with one or all contacting the roughened surface 7 and for one or more bundles to be treated in successive discs 6 and combined at one of said successive discs 6. <IMAGE>
Patent GB-2063182-A (GB)
Title: Offshore harbours
IPC: B63B27/00
Filed: 1980-10-17
Abstract: The invention concerns the off shore transhipment of material from sea going vessels to river vessels, lighters or the like, or vice versa. Floating transhipment equipment is employed within which at least one river vessel, lighter or the like can be moored and protected from the waves on at least three sides. At least one sea going vessel is moored on the outside of the equipment. <IMAGE>