baber/WOPTO huggingface dataset:
Patent GB-2006079-A (GB)
Title: Improvements in or relating to turning machines
IPC: B23Q39/04
Filed: 1978-10-23
Abstract: A turning machine has an indexable tool changing device in the form of a turret 1 with a plurality of tool stations optionally with a workpiece centre station and mounted for indexing movement with respect to a support member 2. Thrust means 19, mounted independently of the device 1 in alignment with a position occupied alternatively by the tool or centre stations, is selectively operable to couple with the tool or centre 3 to provide axial thrust and/or rotation thereto. The thrust means 19 comprises a stepped double acting piston assembly which supports a shaft 38 for the axial movement. This shaft 38 has coupling teeth 42 to engage complementing teeth 10 associated with the centre for rotation thereof. <IMAGE>
Patent GB-2038944-A (GB)
Title: Centrifugal Pump Equipment
IPC: F04D13/08
Filed: 1979-01-26
Abstract: The equipment constitutes a vertical column comprising a base filter arrangement 1, a centrifugal pump 2, a co-axial drive arrangement 3 and a hydraulically driven motor 4. The housing 31 for the drive arrangement 3 is sealably secured to the motor housing 39 and to the pump housing 15. <IMAGE>
Patent GB-2042809-A (GB)
Title: Mounting printed circuit boards
IPC: H05K7/20
Filed: 1979-02-07
Abstract: A mounting means for a printed circuit board 10 has a support for the board which supports also, spaced from the board, at least one sheet 19, 20 of heat conductive material. The support is of cast aluminium and constitutes a heat sink 12 in thermal communication with the sheets 19, 20. The sheets have a black coating to absorb heat given off by components on the board, the heat being conducted away from the sheet to the heat sink for subsequent dissipation by cooling fins 13. <IMAGE>
Patent GB-2051562-A (GB)
Title: Coffee or tea bag holder
IPC: A47G19/16
Filed: 1979-02-27
Abstract: A cylindrical object of approximately four inches in width, with a mesh base for straining, and a half inch shoulder around the brim. Attached to the brim is a two inch frame for the use of holding the object with the fore and index finger, whilst a centre shaft is attached to the frame to give a telescopic movement. A four inch rod is placed through the centre shaft with a circular plate attached to the bottom of it so as to form a press. Just below the brim and above the mesh base is a two inch wide by one inch deep opening for placing in the tea-bag. The completed height of the object when not depressed is seven inches, and the diameter is twelve inches. <IMAGE>
Patent GB-2014281-A (GB)
Title: Valves
IPC: F16K31/50
Filed: 1979-03-01
Abstract: A valve for controlling discharge of liquid material from a tank or reservoir comprises a duct (1) which is connected at one end of the tank (20). At the other end of the duct there is an aperture (6) bounded by a resilient seal (7). A closure flap (8) is connected to the aperture so as to be movable into and out of engagement with the seal (7), and tightening means, such as a screw device (10, 11, 12), is provided for tightening the flap (8) against the seal (7). <IMAGE>
Patent GB-2017338-A (GB)
Title: Advertising displays
IPC: G03C11/18
Filed: 1979-03-12
Abstract: To provide a more permanent advertisement or decoration to an object the invention comprises the steps of preparing the surface of the object, for example, a van 1 placing the van in a large dust-free enclosure, which is used as a photographic darkroom, spraying a specially prepared photographic emulsion on the surface, projecting the negative of the photo-image by an enlarger 3 on to the coated side 2 of the van developing the latent image formed with a sprayed developer and spraying the image with 'stopbath' of dilute acetic acid or water, fixing with a suitable fixer sprayed on the stopped image and washing down for at least three hours with water at 20 DEG C. After drying the fixed image is coated with a lacquer. The monochrome image can be coloured using coloured transparent inks which are coated on the artwork before applying the protective coating. Other objects can be similarly decorated for example, room interiors, exhibition stands or stage scenery. <IMAGE>
Patent GB-2019741-A (GB)
Title: Sand impact mill
IPC: B02C13/30
Filed: 1979-03-13
Abstract: An impact mill for effecting comminution of a feed material to the fineness of sand in which beater bars are mounted for rotation at high speed on a rotor within the mill, wherein the outer part or parts of the beater bars which are exposed to wear are made relatively thin and have a maximum thickness of about 40 mm.
Patent GB-2016826-A (GB)
Title: Power rectifier surge protection
IPC: H02M7/06
Filed: 1979-03-16
Abstract: A full-wave rectifier 30 is coupled to the ac power line and to a filter capacitor 60 for producing-direct voltage. An inductance 50 is coupled in series between the rectifier 30 and the filter capacitor 60. Power-line voltage surges appear across the inductance 50 poled for reverse bias of the then nonconducting rectifiers of the full wave rectifier 30, these voltage surges being of uncontrolled amplitude and liable to exceed the maximum reverse voltage which the rectifiers are capable of withstanding, so a voltage controlled switch such as a glow-discharge lamp 80 or a zener diode 380 (Fig. 3) is coupled across the inductance 50 for coupling the surge across the filter capacitor 60. In this way the surge voltage across the non-conducting rectifiers is limited. <IMAGE>
Patent GB-2017823-A (GB)
Title: Centrifugal fans blowers compressors or the like
IPC: F04D17/10
Filed: 1979-03-19
Abstract: In order to increase the discharge pressure at low discharge sites, a portion of the gas discharge is recycled back to the impeller blades 7 via a radial passage between an impeller shroud 6 and a wall of the casing, and aperture means 17 in the shroud. Approximately 30% of the discharge may be recycled at low discharge rates, decreasing to less than 15% at design discharge rates. <IMAGE>
Patent GB-2020957-A (GB)
Title: Treating seeds to incorporate solids
IPC: A23K1/14
Filed: 1979-05-16
Abstract: A method of treating seeds comprises contacting the whole grains or seeds with a mixture of a solid material in a finely divided form and an oleaginous vehicle. The components of the mixture are synergistic with respect to their absorption and/or adsorption by the grains or seeds. The mixture is maintained in contact with the grains or seeds until it has been incorporated into them. The method may be for enhancing the value of the seeds or to reduce dust hazards. Grain or leguminous seeds may be treated.
Patent GB-2025963-A (GB)
Title: Cyclopropane Derivative
IPC: C07C49/185
Filed: 1979-07-17
Abstract: Novel intermediate in the manufacture of pyrethroid insecticides has the following formula:-   <IMAGE> in the (1R,cis)-stereoisomeric form. The intermediate can be prepared by a process comprising the reaction of (1R,cis)-1-(2-hydroxy-3-oxobutyl)- 3,3-dimethylcyclopropane-2- carbaldehyde with an acetylating agent.
Patent GB-2050192-A (GB)
Title: Monitoring sodium content of condensates during polishing
IPC: B01J47/14
Filed: 1979-07-18
Abstract: In a method of condensate polishing in which substantially all sodium is removed from cation resin during regeneration so that residual sodium cannot be displaced by ammonium ions during service by exhaustion of cation resins by ammonium ions derived from ammonia conditioning of the boiler feedwater, or from any other source there is diverted from the mainflow 10 a pilot flow of feedwater 16 which is continuously fed to a pilot cation resin exchanger 18 containing strongly acidic cation resin. The total flow leaving the pilot exchanger is continuously monitored as is the conductivity of the flow and the results are integrated. A value is derived indicative of the total of sodium ions which have passed in the main service flow. Thus the correct amount of acid required to elute that sodium from the cation resin in the polisher for regeneration can be derived. <IMAGE>
Patent GB-2028721-A (GB)
Title: Stretching fabrics
IPC: B41F15/36
Filed: 1979-08-08
Abstract: Tensioning apparatus, for example for the cloth forming a silk screen, includes a platform 22 movable relative to a frame 12 towards or away from which two pairs of opposed side members 26 are movable, the side members 26 and platform 22 being interconnected whereby movement of the platform, for example by an hydraulic jack 14, causes movement of all side members. The platform 22 may support a frame to be covered by tensioned cloth or this frame may be supported on a table 50, independent of the platform, provided with a separate hydraulic jack 54 for raising or lowering it. <IMAGE>
Patent GB-2031415-A (GB)
Title: 2,4,6-trioxotetrahydropyridones and a process for their manufacture
IPC: C07D213/90
Filed: 1979-09-04
Abstract: Novel tri-oxotetrahydropyridones of the formula:   <IMAGE> in which R is hydrogen, alkyl, aralkyl, phenyl or substituted phenyl, R<1> is methyl, phenyl or substituted phenyl and Y is carbamoyl or acetylamino, are prepared by oxidation of the corresponding 6-hydroxy-pyrid-2-one in an organic solvent in the presence of a copper-containing catalyst in an atmosphere of oxygen.
Patent GB-2046669-A (GB)
Title: Dot matrix print head
IPC: B41J2/24
Filed: 1979-10-12
Abstract: The print head includes a mechanism which comprises a printing assembly including a stylus 30 having a first free end and a second end. An armature 29 is connected to the stylus adjacent the second end and a coil 52 is provided for actuating the armature so as to move the stylus from a rest position to an extended printing position. Stylus control means including a tube 31 of resilient material surrounds the stylus and controls at least longitudinal movement of the stylus. The printing assembly is mounted in a housing 21. <IMAGE>
Patent GB-2064509-A (GB)
Title: 2-(phenylcyclopropyl)chromone derivatives
IPC: C07D311/22
Filed: 1979-12-04
Abstract: Compounds of general formula (I> <IMAGE> wherein the two hydrogen atoms on the  alpha - and  beta - carbon atoms are in the trans configuration with respect to the cyclopropane ring shown, R1 represents a hydrogen atom or a C1-C4 alkyl group; R2 represents an ethyl or propyl group; R3 represents methoxy or ethoxy group or a methyl group; one of R4 and R5 is hydrogen and the other is a methoxy, ethoxy or methyl group; and pharmaceutically acceptable salts of compounds of formula (I), are useful anti-allergic agents.
Patent GB-2050112-A (GB)
Title: PCM and PAM conversion circuit including signal level variation on the PCM portion of the circuit
IPC: H04Q11/04
Filed: 1980-02-13
Abstract: A conversion circuit 20 for use with digital telephone switching equipment for converting pulse amplitude modulation (PAM) signals on line 19 into pulse code modulated (PCM) signals on line 31 and for converting PCM signals on line 30 into PAM signals on line 18. When these conversions are done it is desirable to adjust the magnitude of the signals involved to take into account the differing losses in the associated analogue circuitry. The present invention employs digital pads 25, 42, in the digital portion of the conversion circuit and controlled by a storage register 26, in order to introduce variations in the signal levels. <IMAGE>
Patent GB-2047315-A (GB)
Title: Steel wire element for reinforcing mortar or concrete
IPC: E04C5/01
Filed: 1980-04-09
Abstract: A steel wire element for reinforcing mortar or concrete, having a length in the range 1.5 to 8.0 cm and a length to thickness ratio in the range 30 to 70, wherein at least part of the length of the wire element comprises a series of longitudinally consecutive portions 1 to 4 each of a length in the range 1 to 4 times the wire thickness and each translated laterally by cold shearing with respect to its neighbours by a distance in the range 0.1 to 0.3 times the wire thickness, adjacent ones of said portions being sheared in opposite directions 6 and 7 so that the wire is of double crenellated configuration when viewed laterally, with the protrusions on one side opposite to the indentations on the other side. <IMAGE>
Patent GB-2051495-A (GB)
Title: Improvements relating to load transfer devices
IPC: H02K5/128
Filed: 1980-04-10
Abstract: A load transfer device comprises first and second relatively movable members coupled together magnetically, one of the members being enclosed in a fluid tight enclosure containing viscous fluid. Either the enclosure or the unenclosed member may be mounted on a support structure whereby the device acts as a hydraulic damper damping relative movement of the two members. Alternatively, the enclosure and the unenclosed member may be arranged to constitute the two members of a drive coupling, the drive being transmitted magnetically between the two movable members and hydraulically between the enclosed member and the enclosure. As shown a rotor 3 rotatably mounted on a shaft 5 carries a rotating ring 1 provided with circumferential magnets 14. Members 7 and 10 form a fluid-tight casing in which driven member 9 carrying magnets 15 is disposed so as to rotate. The aluminium housing 7 is filled with viscous fluid, and a cup shaped nylon member 16 is disposed around the inner rotor to compensate for viscosity change. A bellows 18 is also provided. <IMAGE>
Patent GB-2067778-A (GB)
Title: Toy cine projector apparatus
IPC: G03B31/02
Filed: 1980-05-30
Abstract: A sealed magazine 60 (Figs. 12 and 13) contains endless film which is fed intermittently between a projection opening 66 and a spool B by means of a driven sprocket wheel 70, to which the film is held by resiliently biased pressure rollers 74, and intermittent advance means comprising a resiliently reciprocating presser 68 and fixed retention tooth 60Y. The magazine is replaceably inserted in a depression 9 of a toy cine projector containing projection head 12 (Fig. 3), unidirectional clutch 42, and spring-biased sliding sound head 18 which is releasable from an inoperative position by means of a lever (26, Figs. 4 and 5). The magazine has an aperture 82 (Fig. 11) corresponding to head 12, an aperture for cooperation of wheel 70 with clutch 42, an aperture 84 corresponding to head 18 and a wheel 64 which cooperates with head 18 in the operative position. The lever for release of head 18 also locks the magazine in position in the projector by acting on surface 60E (Fig. 13) of the magazine. The projector uses batteries other than for the film advance. <IMAGE>
Patent GB-2077835-A (GB)
Title: Extendible steps
IPC: E06C5/04
Filed: 1980-06-12
Abstract: This invention is a set of extendible steps suitable for mounting on a vehicle or chassis which can be driven or lowered beside an aircraft with the steps collapsed after which the steps can be extended so that passengers can enter or leave the aircraft from the ground. A simple construction with laterally spaced upper and lower flights of treads, and a mid-landing 19 between them can be achieved by having continuous elongate front and rear rails 11, 12 at each side, and identical tread pieces each consisting of a tread 14 and a pair of forwardly or rearwardly extending sides 13 pivoted between the rails. In the upper flight the tread pieces have the treads at the rear, and in the lower flight the tread pieces have the treads at the front. At least one of the continuous elongate rails may carry a stair-lift. <IMAGE>
Patent GB-2056861-A (GB)
Title: Cover bag for an ostomy bag
IPC: A61F5/445
Filed: 1980-07-15
Abstract: A cover bag is intended to fit over an ostomy bag. The cover bag 10, 12, 14 has a slit or hole 28 whereby the ostomy bag (not shown) can be inserted within the cover bag. The cover bag has at least an optionally detachable upper portion 24 made of activated carbon cloth or woven or non-woven material incorporating activated carbon particles or granules therein. The purpose of this cloth or material is to filter any gases which escape from a hole deliberately punched in an upper region of the ostomy bag. Moreover, the cover bag avoid the 'cold' feeling associated with plastics ostomy bags. <IMAGE>
Patent GB-2061053-A (GB)
Title: Digital demodulation or modulation of television chrominance signals
IPC: H04N11/16
Filed: 1980-08-01
Abstract: If a PAL signal is to be demodulated using a line-locked sampling rate such as 816 times the line frequency, the ratio between the sampling period and the subcarrier period has the awkward value of 709379 DIVIDED 2040000. Line- locked sampling is nevertheless desirable, e.g. in digital standards conversion. The subcarrier digital signals for digital demodulation via multipliers 15 and low pass filters 18 are derived with the correct frequency from the sampling rate clock pulses CP by an adder 10 and accumulator 13 into which the number 712 is added modulo-2048 (the register is an 11-bit register) to generate an 11-bit number which represents the sub-carrier phase angle at each sampling pulse and which addresses a ROM 14 providing sin and cos values representing subcarrier samples. 712/2048 is not exactly equal to 709379/2040000 but 2048 is a desirable denominator as it is a power of 2 and implies a ROM 14 of suitable size (712 + <10256>63750)/2048 is exactly equal to 709379/2040000. Another adder 11 and accumulator 19 counts modulo-63750 by increments of 10256 and when the adder 11 overflows, an extra 1 is added in through the carry-in to the adder 10. Modulo 63750 is set up by altering 10256 to 12042 when the overflow occurs. The numbers in brackets (in Figure 1) apply to an NTSC system with sampling rate 800 times line rate. Phase lock to the colour burst is established by examination of the U and V outputs of the main demodulators during the colour burst. +/-1 DIVIDED 2(U + V) = A sin  theta  where  theta  is the phase error. This quantity +/-1 DIVIDED 2(U + V) is applied via a negative feedback loop to effect fine adjustment of the numbers 12042 and 10256. Similar provisions for NTSC are disclosed as is the generation of a PAL switch signal of the correct phase. The apparatus can also be employed as a modulator. <IMAGE>
Patent GB-2084209-A (GB)
Title: Repairing gutters
IPC: E04D13/064
Filed: 1980-09-03
Abstract: A concrete gutter 1 which has deteriorated is provided with resilient, snap-fit liner 10. The liner unit (10) consists of a strip of resilient material, e.g. glass-fibre reinforced plastics having a first section (11) adapted to fit the inside of the concrete gutter (1), and one or more second sections (12, 13). The snap-fitting allows the section to be fitted into place on the concrete gutter section without additional fixings. <IMAGE>
Patent GB-2064211-A (GB)
Title: Short-arc discharge lamp anode
IPC: H01J61/073
Filed: 1980-10-01
Abstract: A short-arc discharge lamp 1 comprising an envelope 2, an anode 3 and a cathode 4 each disposed inside said envelope 2, and a rare gas sealed in said envelope, said anode 3 being made of tungsten containing silicon, aluminum or potassium; or a mixture of at least two of these. Preferably the additive content is in the range of 20-300 ppm. Numerous examples giving proportions of materials are specified. The inclusion of the additive(s) is said to prevent darkening and whitening of the lamp envelope and to prevent deformation of the anode. <IMAGE>
Patent GB-2064152-A (GB)
Title: High-resolution Resist Composite
IPC: G03F7/26
Filed: 1980-11-24
Abstract: A resist composite comprises a a lower layer 5 and an upper layer 8 of positive resist material. The lower layer 5 is thicker than the upper layer 8 and is also of higher sensitivity. The lower layer 5 protects the upper layer 8 against secondary radiation emitted from and primary radiation scattered by the substrate 7 and thus enables apertures to be formed in the upper layer with improved resolution. Suitable materials for electron beam exposure are polymethylmethacrylate for the upper layer 8 and methylmethacrylate/-methacrylic acid copolymer for the lower layer 5. The composite is useful in evaporation and lift-off processes. <IMAGE>
Patent GB-2065015-A (GB)
Title: Apparatus for the assembly of timber frames
IPC: B25B11/02
Filed: 1980-12-04
Abstract: Support plates (1) are slidable along trackings (2) on the support table (3) and include clamps (26) for clamping the timber frame members (R, S) in position. Protraction means 4 is movable along a datum line (35) representing a central vertical axis of a timber frame to be assembled. The protraction means includes a positioning device (34, 36) on each side of the datum for locating a support and rigidly connecting the support to the protractor means on the support so that the timber frame member is at a desired angle to the datum. <IMAGE>
Patent GB-2087342-A (GB)
Title: Apparatus and method for handling palletized cargo
IPC: B63B27/16
Filed: 1981-04-06
Abstract: An apparatus for handling palletized cargo for ships, comprising a first lift means (1A) disposed on the exterior (13) of a ship and a second lift means (18) disposed in the same cross-sectional plane on the interior (14) of the ship, and a horizontal cargo transfer and transportation assembly (1C) arranged between said first and second lifts (1A, 1B). The transfer assembly (1C) consists of forks (9) fastened to a frame (7), and the ends (18) of the frame are slidably mounted on rails (8). The movement of the frame (7) in the direction of transfer (D) is controlled by means of hydraulic cylinders (11). Each rail (8) is attached to parallel guide arms (5, 5'), the ends of the arms being rotatably attached respectively, to fastening brackets (4) disposed on the deck (12) of the ship and to the rail (8). The direction of movement (D') for the guide arms (5, 5') and thereby for the frame (7) toward the lifts is controlled by hydraulic cylinders (10). The first lift means (1A) is disposed in a recess provided in the side of the ship. <IMAGE>
Patent GB-2083687-A (GB)
Title: Circulating gas laser
IPC: H01S3/0971
Filed: 1981-08-17
Abstract: In a circulating-gas laser including a circulation system having a gas propelling means 34 for propelling lasing gas into and lasing gas products out of the lasing system, and a cooling system for cooling the lasing gas products, the gas propelling means includes at least one propelling surface having thereon a catalyst system containing a catalyst which promotes formation of lasing gas from lasing gas products, eg. the recombination of CO and O2 into CO2. The propelling means may comprise a fan having fan blades 35 coated with a catalyst system 42 which is catalytically active at low temperatures, for example an SnO2-supported catalyst. Providing the catalyst in this form rather than, for example, in a conventional honeycomb structure lying across the gas flow minimises the impedance to gas flow whilst maximising contact between catalyst and lasing gas products. <IMAGE>
Patent GB-2091703-A (GB)
Title: Improvements in Sorting Apparatus
IPC: B65H39/11
Filed: 1981-12-16
Abstract: A sorting machine which can be attached to a copying machine (C) to receive successive sheets from an outlet (T) from the copying machine. The sorting machine has plural trays (11) mounted to move progressively past the sheet outlet in opposite directions, the trays being relatively close together when positioned at either side of the outlet, but adjacent trays being widely spaced to accommodate the incoming sheets from the outlet. The trays are fed past and spaced at the outlet by driven members (30); which are notched discs, at opposite sides of the tray which engage and shift stacked trays in succession. The remote ends of the trays are freely supported one on the other for relative longitudinal and pivotal movement. The remote tray ends are mounted one on the other by end pieces (240) which have wedge surfaces causing the remote ends to be spaced apart responsive to longitudinal movement of the trays. <IMAGE>