baber/WOPTO huggingface dataset:
Patent GB-2010831-A (GB)
Title: Process for the preparation of octahydropyrrolo [1,2-a] pyrazine
IPC: C07D471/04
Filed: 1978-10-18
Abstract: The process for the preparation of octahydropyrrolo [1,2-a] pyrazine comprises reducing 3,4-dihydropyrrolo [1,2-a] pyrazine by catalytic hydrogenation at 100-180 DEG C at a pressure of 100- 180 atm in the presence of a nickel, platinum of paralladium catalyst to obtain a reaction mixture containing the end product, with subsequent isolation thereof. The process may be carried out on a commercial scale. The yield of octahydropyrrolo [1,2-a] pyrazine is up to 82%.
Patent GB-2032251-A (GB)
Title: Improvements in or relating to point protectors
IPC: A44B9/10
Filed: 1978-10-31
Abstract: A point protector for tie pins and like articles of jewellery comprises a resilient plastics material body 1 with two end pieces 2 and 3 contained in a precious metal casing 4. The metal casing is initially a tube which is counter- drilled at each end to provide locations for the end pieces, when the body 1 and the end pieces are inserted the casing is formed on the body trapping the body and the end pieces. The body, one end piece, and the casing have bores for receiving the point to be shielded. The invention also is directed to the method of making the protector.   <IMAGE>
Patent GB-2042778-A (GB)
Title: Seismic data transmission
IPC: G01V1/32
Filed: 1979-02-22
Abstract: Seismic data is transferred from field tapes to disc (8) using the drive of a specialised tape player (1) upon which they were recorded.   An interface between the tape player (1) and disc (8) is provided by circuit (3) including logic gates and a direct memory access interface (4) connected to a computer (6) having a memory (7) into which the data is transferred before being written on the disc (8). Registers in the direct memory access interface (4) are reset by the computer (6) while undesired data is being read from the field tapes.   <IMAGE>
Patent GB-2021792-A (GB)
Title: Improvements in and relating to bread making
IPC: G01G13/29
Filed: 1979-06-08
Abstract: The contents of the hopper (402) feeding the divider (404) in a bread making process are isolated, weighed and the measured weight stored. The contents of the hopper feeding the divider are again isolated and weighed after a predetermined number of divider strokes. The two weights and a predetermined desired difference between the two are then correlated to derive an error signal representative of the difference between the desired weight after said predetermined number of strokes and the actual weight. The error signal is used either to adjust the divider mechanism to reduce said error or to provide a display to indicate the corrective action required to reduce the error. <IMAGE>
Patent GB-2031279-A (GB)
Title: Herbicides
IPC: A01N39/02
Filed: 1979-07-11
Abstract: The selective control of weeds in post-emergence treatment of cereal crops employing a combination of a compound of formula I   <IMAGE>  and a compound of formula II   <IMAGE> wherein X is -CH(CH3)-, -CH2- or -(CH2)3- the treatment being shown to be synergistic, particularly in controlling the problematic weed species Matricaria spp.
Patent GB-2026201-A (GB)
Title: Photographic material having a writing quality-imparting layer
IPC: G03C1/95
Filed: 1979-07-17
Abstract: A photographic material having on the image-viewing side thereof an image for the picture and a non-image portion, e.g. a border or margin, and on the surface of the non-image portion alone a layer comprising a binder and a matting agent which allows writing, e.g. with a pencil or an aqueous ink, to be readily made on the non-image portion. The matting agent comprises particles, e.g. of silica. When the non-image surface is hydrophilic, e.g. gelatin, the binder thereon can be a protein, cellulose ether, sugar derivative or hydrophilic polymer. When the surface is hydrophobic, e.g. a cellulose ester polyester or acrylic polymer, the binder thereon is one which is soluble in a solvent for the hydrophobic surface, such as a vinyl or vinylidene chloride (co)polymer, cellulose ester, amorphous polyester, polydiene or polymer of (meth)acrylic acid. On a hydrophobic surface a mixture of a hydrophobic and hydrophilic binder is preferred, e.g. on a cellulose ester a mixture of a cellulose ether and cellulose ester. The surface layer is coated in strips or on the margins of a material for making a light-sensitive silver halide photo- graphic material, e.g. a diffusion- transfer unit.
Patent GB-2054996-A (GB)
Title: D/A converter; MOST IC
IPC: H03M1/00
Filed: 1979-07-20
Abstract: In order to avoid having to provide resistor ladder networks in an analogue to digital converter fabricated as an MOS integrated circuit, an array of MOS transistors (T1 to T6, T1D to T6D) are provided to form a weighted current source which draws current through a load (40) across which the analogue output voltage (VOUT) is developed. Each bit- stage of the DAC comprises an enhancement transistor (Tn) and a depletion transistor (TnD), whose source drain paths are connected in series between the load (40) and a supply rail (30), the W/L ratios of the transistors (Tn, TnD) of each stage being a factor of 2 greater or less than those of an adjacent stage. The enhancement transistor (Tn) of each stage is rendered conductive or non- conductive at will in response to an associated bit of the applied digital signal and thereby either connects or not connects the stage into the current path through the load (40). <IMAGE>
Patent GB-2054523-A (GB)
Title: Nesting box
IPC: A01K31/14
Filed: 1979-07-27
Abstract: A nesting box is erected from a foldable blank of stiff material, such as wax-impregnated corrugated cardboard and comprises a base and a plurality of side walls (e.g. 12, 15). An aperture (16) for the passage of a bird is provided in one (12) of the side walls. A lid (20, 21) is hinged to another of the side walls. The erected nesting box has no glued connections, the side walls being retained in place by the closed lid (20, 21). <IMAGE>
Patent GB-2057772-A (GB)
Title: Improvements in or relating to antennas
IPC: H01Q7/06
Filed: 1979-08-23
Abstract: An antenna suitable for use in conjunction with a radio direction finding receiver of the kind which is typically carried by an aircraft or a ship consists of a number of individual antenna loops (1). The loops lie in at least two different planes and are selectively switched, (3), into circuit to enable the strength of a signal applied to a receiver to be maximised. As shown, a plurality of loops (1) are wound on a ferrite toroid (2). Switching may be effected by means of diode switches and a shift register. <IMAGE>
Patent GB-2058551-A (GB)
Title: Bracket
IPC: H04R1/02
Filed: 1979-09-14
Abstract: A bracket for mounting a transducer casing on a wall in the vicinity of a junction box fed via conduit, comprises:- a rectangular shelf 4 with an upturned lip 5 along its outer edge; and a pair of spaced vertical sheet metal arms 6 projecting upwardly from the inner edge of the shelf 4 and have keying portions 7 displaced forwardly at their upper ends; the arms being passed between the conduit and the wall, one on either side of the junction box with the junction box just above the shelf, and the unit being fixed in position by screws passing through holes 15 in the arms 6. The casing of the transducer is designed to form a precise fit with the bracket, with the shelf 4 forming the bottom of the casing. The device may be mounted upside down (ie with the shelf above the junction box) if required. <IMAGE>
Patent GB-2033112-A (GB)
Title: Control device for feeding stoppers in bottle-closure machines
IPC: B67B3/06
Filed: 1979-09-20
Abstract: In a device for controlling the rate at which crown stoppers are supplied to a bottle-stoppering machine, several sensors x0 to x7 which may be inductive are arranged along the feed passage 2 in the feed direction, and signals from the sensors are used to regulate steplessly the speed of the machine supplying the stoppers e.g. a sorting machine so that as the number of stoppers in the passage is reduced, the supply rate is increased and vice versa. <IMAGE>
Patent GB-2066084-A (GB)
Title: Improvements in and relating to cricket bats
IPC: A63B59/08
Filed: 1979-12-24
Abstract: A wooden cricket bat having a cast-on toe capping or material impervious to moisture to inhibit the ingress of moisture into the end grain of the bat. Preferably the material is also abrasion resistant. <IMAGE>
Patent GB-2043553-A (GB)
Title: Front end loading transit mixer
IPC: B60P3/16
Filed: 1980-01-21
Abstract: The opening 32 at the front end of the drum 16 is made an optimum diameter while the overall height of the vehicle is maintained within acceptable height limits by locating the operator's cab 14 rearwardly of the front wheel set and laterally offset to one side of the frame of the vehicle. An unobstructed viewing opening is provided in the area extending inwardly from the front end of the frame and located above the front end portion of the frame and below the front section of the mixing drum so that the operator is afforded an unobstructed line of vision in a generally horizontal plane extending through at least 90 DEG  in each direction from the direction of forward movement of the vehicle. <IMAGE>
Patent GB-2067519-A (GB)
Title: Packaging/display carton
IPC: B65D5/42
Filed: 1980-01-23
Abstract: A packaging/display carton erected from a blank comprises a tray portion 1 and a cover portion 2 which is removable by tearing along a fold 3. The front wall of the tray portion is made by sandwiching tabs on extensions 11a, 11b of the side walls 5a, 5b inside a folded-over front rim 7a, 7b integral with the base panel 4. At the apertured rear wall 6, other extensions 12a, 12b of the side walls 5a, 5b sandwich vertical side strips of the rear wall 6 to hold the side walls erect. <IMAGE>
Patent GB-2071192-A (GB)
Title: Double gluing assemblies
IPC: E06B3/28
Filed: 1980-03-04
Abstract: A kit of parts for converting a window to a double glazing assembly comprises a second window (12) which has a white plastics trim (14) around its peripheral edge, together with a plurality of U-shaped brackets (16, 18) for mounting the second window on the frame of the first window. The side brackets (16) each have a lug by means of which the bracket is pivotally mounted on the first window frame, the brackets on each side aligned such that the respective side edge of the second window can be positioned thereover. Once the second window is positioned in the bottom brackets (18) and over the lugs of the side brackets (16), the latter are pivoted to embrace the trim. The outwardly facing legs of the brackets (16, 18) are coated with a white plastics material and are dimensioned to correspond to the trim such that the appearance of the brackets matches that of the trim. <IMAGE>
Patent GB-2056787-A (GB)
Title: Brush-holder
IPC: H01R39/39
Filed: 1980-06-20
Abstract: A hammer-type brush-holder for feeding current to slip-rings (12) of electrical machines comprises a rigid arm (14) to which a carbon brush (13) is secured, the arm being pivoted (at 16) to a base member (15), and additionally a leaf spring (17) which serves to press the carbon brush against the slip- ring and to feed current. <IMAGE>
Patent GB-2053081-A (GB)
Title: Apparatus for packing and securing a plurality of bales into a stack
IPC: A01D90/08
Filed: 1980-07-08
Abstract: Apparatus and method for packing and securing rectangular bales into a stack the apparatus including means for guiding bales A, B, C, individually into a first station, lifting means 24 for lifting each of the bales to a second station in which it is supported by means 43, 44, and when a column of, for example, three bales is situated therein, a pusher means 26, 27 is operated, the bales being pushed transversely off the machine onto an inclined platform 23 and a gate assembly 29, 31 which allows discharge of a stack of three columns of bales, which are first tied by a tying mechanism, the sequence of the apparatus being hydraulically actuated by trip devices upon completion of appropriate movements. <IMAGE>
Patent GB-2082031-A (GB)
Title: Fish weighing device
IPC: A01K97/00
Filed: 1980-08-09
Abstract: A fish weighing device for use by anglers, comprising a sheet having a rigid edge (2) attached to a supporting cord (3), and an opposing edge having at least one fastening member (5) thereon, such that both edges may be brought together to form a sling to carry a fish. <IMAGE>
Patent GB-2057232-A (GB)
Title: Harrows
IPC: A01B23/02
Filed: 1980-08-19
Abstract: A tined member (1) or each such member of or for a raking or similar implement or tool such as a harrow is provided in which the member (1) has or receives tines (10) of blade form which, in use, are presented edgewise, or substantially edgewise, in the direction of working or travelling movement of the implement or tool. Each tine (10) is located against twisting movement relative to the member (1) such as by abutment of the blade form of the tine against a tie-bar (2) or similar frame member secured to the member (1). Especially for detachable attachment the upper end of each tine (10) is provided with a projection or head (100) substantially at right angles to the blade form of the tine (10). Other detachable mounting and location of the tines (10) may be employed or alternatively they may be pressed out of the or each member (1). <IMAGE>
Patent GB-2063118-A (GB)
Title: Vibrating scouring or grinding container
IPC: B24B31/073
Filed: 1980-11-12
Abstract: The bottom of an annular vibrating scouring container (9) lies in one plane (S) which is arranged sloping at an acute angle to the horizontal (H) and thereby also inclined at an acute angle to the axis of the oscillation generator (4,5) which is vertical. Thus the highest point and the lowest point lie approximately diametrically opposite one another, so that even in the downwardly sloping section of the container a helical processing motion of the container contents takes place. A discharge and separator device (14) of arcuate shape is movable concentrically about the centre of the container. In another arrangement the discharge and separator device is tangential to the container. The trough of the container may be wider at the lower end of the slope than at the upper end. <IMAGE>
Patent GB-2088324-A (GB)
Title: Laundry bag
IPC: D06F95/00
Filed: 1980-11-26
Abstract: A bag for holding small articles in a washing machine, is water- permeable, with an opening which can be releasably closed by mutual engagement of two opposing edge portions for which the preferred closure means is a pile fastening device consisting of loop elements and loop-engaging elements, or is a separable adhesive.
Patent GB-2071445-A (GB)
Title: Improvements in or Relating to Output Circuits
IPC: G11C11/4076
Filed: 1981-01-16
Abstract: An output buffer circuit operable at a high-speed and stably holding output level is disclosed. The output buffer circuit comprises a pair of input transistors receivable a true and a complementary signals, a pair of output nodes from which amplified signals of the true and complementary signals are derived, a pair of switching gates coupled between the drains of the input transistors and the output nodes and control means for operatively disenabling the switching gates when logic state of the true and complementary signals applied to the input transistors is reversed. <IMAGE>
Patent GB-2072124-A (GB)
Title: Improvements in wrapping machines
IPC: B65G47/32
Filed: 1981-03-18
Abstract: Chocolate bars 10 are advanced in procession to a continuously moving flight conveyor 14 providing an infeed to a wrapping machine by a slower continuously moving input conveyor 11, which delivers the articles in succession to an intermediate continuously moving take-away conveyor 12, which moves at a speed between that of the input conveyor 11 and that of the flight conveyor 14. The articles are so delivered by a tilting movement, which is controlled by a reciprocating control finger 17, which contacts the leading end of each bar leaving the input conveyor, to retard it temporarily, whereby it is released in timed relation with the movement of the flights 16 of the flight conveyors 14. <IMAGE>
Patent GB-2075011-A (GB)
Title: Process for Preparing Cyclopropane Carboxylic Acid Ester Derivatives
IPC: C07C255/53
Filed: 1981-04-21
Abstract: A process for preparing a 1:1 mixture of 1R cis S- and 1S cis R- isomers substantially free of 1S cis S- and 1R cis R- isomers of a compound of formula:   <IMAGE> wherein R<1> and R<2> are each independently selected from chlorine, bromine and methyl comprises dissolving a mixture of 1S cis S- and 1R cis R- isomers of the compound of formula I, alone or in the presence of 1R cis S- and 1S cis R-isomers, in organic amine base containing from 5 to 7 carbon atoms and being a secondary amine containing two branched alkyl groups or a tertiary amine, and crystallising out from the resulting solution of cis-isomers of formula I in the organic amine base a 1:1 mixture of the 1R cis S- and 1S cis R- isomers substantially free of 1S cis S- and 1R cis R- isomers.
Patent GB-2075769-A (GB)
Title: Electrical connectors
IPC: H01R13/56
Filed: 1981-04-30
Abstract: A connector, which may be for connecting a petrol injector to a power supply, comprises an insulating holder 10 which houses contacts 12, 14, a cord-protecting sleeve 24 mounted on the holder, and a metal clip 32 which serves both to secure the sleeve on the holder and to provide a spring clip arrangement, comprising opposed abutments 42, for securement of the connector to an appliance. The clip comprises an annular clamping plate 34, which clamps an annular flange 28 of the sleeve to the holder, and arms 32 which project forwardly from the clamping plate to provide the abutments 42. Lugs 38 of the arms project rearwardly to engage steps 40 of the holder, so that the sleeve flange and the holder are clamped between the clamping plate 34 and the lugs 38. <IMAGE>
Patent GB-2101607-A (GB)
Title: Method of making a suspension of a filler for rubber mixtures
Inventor: SOKOLOVSKY ALEXANDR EVGENIEVIC
IPC: C08J3/21
Filed: 1981-07-08
Abstract: Polymeric materials including a filler are mixed with a hydrocarbonaceous solvent in a ratio of from 1:0.5 to 1:60 parts by weight and the mixture is isothermally heated to give thermal destruction of the polymeric materials and form a suspension. Low-boiling fractions are distilled from this suspension in the presence of a gaseous agent inert to the distillation e.g. N2 CO2 or steam at a temperature of 50 to 400 DEG C and at a pressure of from 1.10<2> to 1.10<5>n/m<2>. Most advantageously the starting material can be a filled rubber or other elastomer. The method avoids expensive starting materials and gives a suspension of a filler which can advantageously be incorporated into rubber formulations.
Patent GB-2104383-A (GB)
Title: Anti-fouling compositions containing natural products
Inventor: COPPEN JOHN JAMES WALTER
IPC: C07D493/20
Filed: 1981-08-04
Abstract: Anti-fouling compositions suitable for use as algicides and/or barnicides contain one or more iridoids derived from plants of the genera Plumeria, Allamanda or Nerium of the family Apocynaceae. Particularly active iridoids are compounds of general formulae I and II,   <IMAGE> especially (in the case of I) wherein R<1> is N and R<2> is CH3 or R<1> is CH3 and R<2> is H and (in the case of II) wherein X is a glucosyl, an acetylated glucosyl or a benzoylated glucosyl group and R is an acetyl or a benzoyl group or a group of general formula III   <IMAGE> wherein Y is a hydrogen atom, an acetyl, a benzoyl, a glucosyl, an acetylated glucosyl or a benzoylated glucosyl group. The compositions may be in the form of paints which are preferably applied to aquatic structures by spraying.
Patent GB-2105464-A (GB)
Title: Sound source location system
Inventor: POULTNEY ALAN EUSEBIUS JOHN
IPC: G01S5/20
Filed: 1981-09-03
Abstract: A sound source location system comprises two spaced groups A1, A2 of transducers the groups each having their transducers 1, 2, 3 etc mutually spaced by a distance less than the distance travelled by sound in the minimum expected interval between sound occurrences. For each group, means is provided for determining signals representative of the direction of sounds received by all transducers, in dependence upon the receipt time of the sounds. Means is provided for deriving, from the signals representative of direction, signals representative of sound source locations the validity of which is confirmed in dependence upon the time interval between receipt of the sound by each transducer group. <IMAGE>
Patent GB-2106269-A (GB)
Title: Apparatus for and method of controlling or modifying conditions in enclosed spaces
Inventor: GUNTON BRUCE STANLEY
IPC: G05D22/02
Filed: 1981-09-15
Abstract: Apparatus for controlling or modifying a condition in a room comprises operating means such as a light source (11), a heater (12), an air conditioning unit (13) or a speaker (14) and control means for controlling the operating means. The control means comprises an ultrasonic device 15, an infra-red radiation detecting device (16), an electromagnetic source (18) and detector (17), a reflection detector (19), walls (20 and 21) forming a capacitor, or an electrical conductor (22). The control means detects a change in the field in the room to control the operating means. <IMAGE>
Patent GB-2110767-A (GB)
Title: A shrouded rotor for a gas turbine engine
Inventor: STRATFORD BRIAN STAPLETON
IPC: F01D11/12
Filed: 1981-11-27
Abstract: The rotor, e.g. for a turbine, has a shroud whose outer surface is formed to reduce the inefficiency caused by leakage flow of gas over the outside of the shroud. The forward region 27 of this surface is formed to cooperate with static structure 28 to define a narrow clearance which directs the leakage flow into a plenum chamber 32. The leakage flow remains attached to the intermediate section 31 of the surface which is flat or gently curved to encourage this effect. At its rearward portion the shroud has enclosed ducts 36 which direct the leakage flow in the same direction as the main gas flow leaving the blades, and which preferably do not involve a change in static pressure, so that recirculation of the leakage flow is discouraged and all the leakage flow passes through the ducts 36. Blade cooling air may also be discharged through the ducts 36. <IMAGE>
Patent GB-2091007-A (GB)
Title: Voltage regulators
IPC: H02K11/02
Filed: 1982-01-07
Abstract: A semiconductor voltage regulator 1 for an alternator for use in a vehicle comprises a box-shaped or recess-shaped housing portion A formed on an outer surface of a portion of a case 3 of the voltage regulator 1, and surge absorbing means such as a noise suppression capacitor 2 housed in the housing portion A. <IMAGE>
Patent GB-2094701-A (GB)
Title: Speaker diaphragm and method of manufacture
IPC: B29C51/08
Filed: 1982-02-03
Abstract: A fixed type diaphragm for speaker and a method of producing such diaphragm comprising a sheet-forming step comprising forming a sheet for the edge portion composed principally of a thermoplastic resin fiber and mixed with a reinforcing material while also forming and laminating on the said sheet the circular sheets for the cone portion composed principally of a thermoplastic resin fiber and mixed with a reinforcing material; a cutting step in which the formed laminate sheet is cut; a heating step in which each cut sheet is held between heating plates and thereby heated and softened; and a molding step in which the heated and softened sheet is cold pressed by the top and bottom disc. In the preferred embodiment, a base sheet (10) carrying discs (11) is heat softened in the area of the discs by plats (12-1 5). The thus softened areas are then drawn to form diaphragms between a lower ferrule die (16) and a movable upper die (17') having a clamping ring (17''). The disc and ring are cooled. <IMAGE>