baber/WOPTO huggingface dataset:
Patent GB-2044325-A (GB)
Title: Improvements in or Relating to Cattle Grids
IPC: A01K3/00
Filed: 1980-02-29
Abstract: A portable cattle grid 1 for use in a gateway not fitted with a permanent grid is provided with means such as lugs 19 and end-pivoted lift bar 9- 13-17 for attaching it to a transport vehicle, so that it is held clear of the ground when attached. The grid may carry field gates 31, 33 and may incorporate electrified wires (Fig.4 not shown) In Fig. 5 (not shown) rocker arms on one of the transverse grid tubes (71) carry a pair of transverse bars (75, 77) so that an animal treading on bar (75) is startled as bar (77) lifts. <IMAGE>
Patent GB-2045085-A (GB)
Title: Joint Prosthesis
IPC: A61F2/42
Filed: 1980-03-05
Abstract: A joint prosthesis, particularly suitable as a metacarpophalangeal joint prosthesis, is disclosed comprising first and second intramedullary plugs 3, 11 adapted to be secured to the walls of the intramedullary canals of the two bones (not shown), and first and second components 5, 9 each comprising a bearing portion and a stem 47, 33 slidably received in a longitudinal bore provided in each of said intramedullary plugs. Transmission of stresses to the bone-prosthesis fixation interfaces is substantially reduced as a result of the freedom of motion of the stems within these longitudinal bores. In a preferred embodiment, axial rotation of one, but only one, of said stems with respect to the intramedullary plug receiving it is prevented. Use of preferred configurations for the bearing portions of the two components provides an accurate reproduction of the movement and degrees of freedom of the natural metacarpophalangeal joint. <IMAGE>
Patent GB-2045784-A (GB)
Title: Modified urea-formaldehyde resin
IPC: D06M15/423
Filed: 1980-03-13
Abstract: A curable urea-formaldehyde resin modified by 0.25 to 3 moles, per mole of urea, of a nitroalkanol or a nitroalkane has particular utility for treating textiles and non-woven cellulose products to provide permanent press and wrinkle-resistant characteristics.
Patent GB-2052771-A (GB)
Title: Improvements in and relating to photographic instant picture film assemblies
IPC: G03C8/26
Filed: 1980-03-20
Abstract: In a photographic instant picture film assembly a partially permeable sealing layer lies between an image receiving layer and a layer where during development developer is distributed in excess. This construction is said to allow separation of the photosensitive portion from the image receiving portion of the film assembly after development in such a manner that alkaline processing composition does not soil the camera, user or the environment. A camera in which the separated photosensitive portion can be stored is also described.
Patent GB-2082052-A (GB)
Title: Collapsible brush
IPC: A46B7/02
Filed: 1980-06-03
Abstract: The brush is especially intended for brushing hair and comprises bristles 15 provided with beads 15b engaged in ball-and-socket manner with hollow dome-like projections 20 of a bristle bed 14. Lower projections 15a of the bristles extend obtusely to the remainder thereof and engage in apertures 31 in a slab 30, slidably mounted in the body 11 of the brush. Sliding movement of the slab moves the bristles from erect to collapsed positions to facilitate stowage of the brush in a pocket of handbag. <IMAGE>
Patent GB-2054140-A (GB)
Title: Improvements to X- and  gamma -ray Techniques for Determination of the Ash Content of Coal
IPC: G01N23/20
Filed: 1980-06-23
Abstract: An X- or  gamma -ray scatter assembly for use in quantitative determination of the concentration of ash in coke or coal 5, comprises X- or  gamma -ray source 1, energy sensitive detector 3, 4 to detect X- or  gamma -rays 8, resulting from X- or  gamma -ray scatter in the coal or coke. Shielding means 2 is adapted to reduce the intensity of direct X-rays or  gamma -rays and to collimate partly the beam of X-rays and/or  gamma -rays to ensure matched volumes and deep penetration in the coal or coke. The assembly has an associated electronic analyser adapted to select all or one or more parts of the detected X-ray or  gamma - ray spectrum, thereby modifying the output of the assembly. Two or more of these assemblies are employed in an apparatus and method for analysing coal or coke. <IMAGE>
Patent GB-2062988-A (GB)
Title: Arrangement for determining the resonant frequency of load- commutated converters having an oscillatory load circuit
IPC: G01R23/06
Filed: 1980-10-10
Abstract: An arrangement for determining the resonant frequency of load- commutated converters having an oscillating circuit by means of a starting pulse for triggering the loaded oscillating circuit, only one starting pulse being required to enable the converter to be reliably started. The sinusoidal voltage applied to the load can be transferred to a discriminator to be transformed into an in-phase square-wave voltage (b), which square-wave voltage can be transformed by means of an integrator into a voltage ramp (c) which can be transferred to a sample/hold circuit which stores the ramp voltage amplitude (e) at the end of the positive half-wave of the square-wave voltage so that the said stored voltage is inversely proportional to the natural frequency of the loaded oscillating circuit. <IMAGE>
Patent GB-2068871-A (GB)
Title: Apparatus for the sequential transfer of metallic objects between conveyors
IPC: B65G47/92
Filed: 1980-10-15
Abstract: A transfer means is described which sequentially transfers metallic articles such as closure covers or the like 2 from a first conveyor 5 moving in one direction at one speed to a second conveyor 7 moving in a differing direction at a differing speed. The transfer means includes magnetic pick-up heads 10 controlled by sensors 12 responsive to the arrival of an article for sequentially engaging the articles on the one conveyor, and means for adjusting the article speed and direction for their delivery to a second conveyor. <IMAGE>
Patent GB-2062475-A (GB)
Title: Respiratory apparatus
IPC: A61M16/00
Filed: 1980-11-06
Abstract: An apparatus for supplying respiratory gas to a patient has a first variable volume chamber or bellows (1) connected to a respiratory gas circuit (A) which supplies gas via a facepiece to a patient (15). A respiratory gas (pref. a mixture of O2 and N2O which may contain additional anaesthetic from a vaporiser (22)), is supplied from a respiratory gas preparation device (B). A pneumatic control device (C) has a control unit (3, 9), for controlling the pressure in an inner housing (11) which houses the bellows (1), and which controls the supply of respiratory gas from the bellows (1) to the patient (15). A second, manually operable variable volume chamber (24) can be connected to the respiratory gas circuit (A) instead of the first chamber so that respiration can be effected manually. The bellows (1) are interchangeable so that a bellows having a volume corresponding to the volume of the patient's lungs can be selected. <IMAGE>
Patent GB-2091944-A (GB)
Title: Microstrip antenna
IPC: H01Q13/20
Filed: 1981-01-23
Abstract: A printed circuit microstrip antenna consists of a feed line 20 with radiating stubs 21 directly connected to the feed line. To minimise cross currents in the stubs, which give rise to cross-polarized radiation, the stubs are formed with slots 22 extending inwardly from the radiating ends of the stubs towards the feed line. Hence the cross-polarization level is greatly reduced with respect to the co-polarized radiation produced by longitudinal currents in the stubs. <IMAGE>
Patent GB-2071851-A (GB)
Title: Gauge head device
IPC: G01B5/20
Filed: 1981-03-12
Abstract: A gauge, particularly for measuring gear wheels, comprises a feeler pin (11) Fig. 1 carried by a block 8 which is linearly guided by a planar linkage comprising end blocks 2, 3 and rockers 6, 7, the articulations of the linkage being provided by leaf spring hinges such as 16, 17, Fig. 3 and being held by these in a rest position, and means 15 which measures movements of the pin (11) from a rest position. A further, adjustable spring 24, which biasses each leaf spring hinge by a tension load and the spring force of which decreases uniformly on deflection of the leaf spring hinge out of the rest position, is arranged between each pair of articulated elements of the linkage. <IMAGE>
Patent GB-2076318-A (GB)
Title: Method of manufacturing an electric machine rotor, and a rotor
IPC: H02K9/22
Filed: 1981-05-06
Abstract: A method of manufacturing a rotor of an electrical machine, for example an electric motor, is provided. The method includes a step which provides for a modification of the external surface of the rotor so as to increase heat transfer from the rotor. This can be achieved by coating the rotor with a material having a high emissivity, or by roughening an exterior surface of the rotor.
Patent GB-2097887-A (GB)
Title: Anchorage inserts for plastics sailboards
IPC: B63B35/79
Filed: 1981-05-06
Abstract: An insert of the same plastics material as the sailboard which is receive the insert, is produced by turning or injection moulding in the form shown in the drawing. The insert is introduced into a bore in the sailboard containing newly foamed polyurethane, held in position by means of a strap, and then fused to the sailboard by hot air or gas welding. <IMAGE>
Patent GB-2080830-A (GB)
Title: Controlling alumina content of fused bath for production of aluminium by electrolysis
IPC: C25C3/06
Filed: 1981-07-22
Abstract: A process and apparatus for controlling the rate of introduction and the content of alumina to a tank for the production of aluminium by the electrolysis of dissolved alumina in a cryolite-base bath, the upper part of which forms a solidified crust, and wherein the alumina content is maintained within a narrow range, of between 1% and 3.5%, wherein the alumina is introduced directly into the molten cryolite bath by way of at least one opening which is kept open in the solidified crust and the rate at which the alumina is introduced is modulated relative to variations in the internal resistance of the tank during predetermined periods of time, with alternation of the cycles of introducing alumina at a slower rate and at a faster rate than the rate corresponding to normal consumption within the tank.
Patent GB-2104233-A (GB)
Title: Electrostatographic toner
Inventor: MURPHY JOHN PHILIP
IPC: G03G15/05
Filed: 1981-07-30
Abstract: A particulate toner composition for developing and fixing a charge image on an electrostatographic master used in electrostatographic duplication is required to give a fixed master image holding a surface charge of not less than 20 volts per gram with a decay of not more than 15% after 0.5 seconds. The toner may be used for electrostatographic duplicating by forming a charge image on a photoconductive master surface, developing the charge image with the aforesaid toner, fixing the developed image on the master surface to give a fixed image which holds a surface charge of not less than 20 volts per gram with a decay of not more than 15% after 0.5 seconds, and thereafter duplicating copies by cyclically charging the image bearing master surface, flood exposing it, developing it with toner and transferring the developed toner images onto copy sheets.
Patent GB-2105773-A (GB)
Title: Wrist bracelet clasp
Inventor: YI-LINSEN
IPC: A44C5/24
Filed: 1981-09-14
Abstract: A clasp 1 for a wrist bracelet comprises upper and lower pivotally interconnected arms 2, 3 provided for connecting the upper arm 2 to one end 7 of the wrist bracelet is attached to flanges 6 of arm 2 while the other end 17 can be passed between a pivotally mounted locking member 11 and the lower arm 3. The arms 2, 3 are movable between a) a spaced apart position wherein the free end 17 of the bracelet may be slid freely beneath the locking member 11, thereby allowing a wearer to obtain a comfortable fit, and b) a closed position wherein the arms 2, 3 are pressed together and the locking member 11 restrains further movement of the free end 17 of the bracelet. The arms are held in the closed position by engagement of a hook with a pin 10. <IMAGE>
Patent GB-2107859-A (GB)
Title: Night light activator
Inventor: WARRINGTON JOHN MARTIN
IPC: H05B37/02
Filed: 1981-10-15
Abstract: A light sensitive switch uses a pair of light cells in order to prevent daylight operating the circuit, and make it less sensitive to ambient light. When one light cell conducts sufficiently to register a logic one at the input to its associated gate G1 or G2, then a logic one is passed to G3. If only one light cell operates in this way then G3 passes on a logic one to the timer, which operates the switch and holds it on for a preset time before resetting to off. Should both light cells go positive the G3 will not pass a logic one to the timer. In this way, daylight falling on both cells will not activate the circuit. The separation of the circuit box from the cells and shading tube allows the cells and shading tube to be fitted to such projections as mirrors and to other specially made projections. The device can also be used on vessels and stationary aircraft, or in domestic situations for the illumination of dark entrances to facilitate parking of owner's vehicles. <IMAGE>
Patent GB-2084484-A (GB)
Title: System for bicarbonate dialysate
IPC: A61M1/00
Filed: 1981-04-21
Abstract: A dialysate solution containing bicarbonate ion in which the bicarbonate ion is generated in a flowing stream prior to dialysis by combining an aqueous sodium carbonate-containing stream produced from a bacteriostatic concentrate with an aqueous stream containing hydrochloric acid, acetic acid or a mixture of these acids in two stages with an excess of acid in the first stage. The bicarbonate ion can be generated using a proportioning system in which the conductivity as well as the hydrogen ion activity of the resulting bicarbonate-containing dialysate is monitored. The acid can be provided in a unit dosage form of aqueous concentrate additionally containing chloride ion in a concentration of about 3.5 Molar to about 4.7 Molar, sodium ion in a concentration of about 1.9 Molar to about 2.7 Molar, and dextrose in a concentration of about 0 Molar to about 0.4 Molar. Additionally, the acid concentrate may contain acetate group in a concentration of up to about 0.525 Molar, calcium ion in a concentration of up to about 0.125 Molar, potassium ion in a concentration of up to about 0.14 Molar, and magnesium ion in a concentration of up to about 0.09 Molar. The sodium carbonate containing stream can be generated by diluting an aqueous concentrate comprising at least about 20 grams of sodium carbonate, calculated as anhydrous sodium carbonate, per liter of solution.
Patent GB-2108488-A (GB)
Title: Process for the oxidation of Schiff's bases to heterocyclic compounds
Inventor: WARING DAVID RICHARD
IPC: C07D263/57
Filed: 1981-11-05
Abstract: A Schiff base of the formula:   <IMAGE> where (Y)m represents the possible presence of one or more substituents, which can be the same or different, m being 0 to 4, R is an unsubstituted or substituted aryl group, and Z is -O- or -S-, is oxidised in the presence of sulphuryl chloride and an amine base having a pKb of 8 to 10 to give a 2-arylbenzoxazole (Z=O) or 2- arylbenzothiazole (Z=S).
Patent GB-2091646-A (GB)
Title: Hydrofoil Craft
IPC: B63B7/08
Filed: 1982-01-21
Abstract: An inflatable craft substantially consisting of a U-shaped tubular buoyancy casing (10, 11, 12) exhibits under its hull structure, two V-shaped hydrofoils arranged transversally, the one in the forward and the other in the astern dinghy section. The hydrofoils have a cross-sectional outline with a shape-cornered leading edge and its maximum thickness in correspondence with the trailing edge. At least the hydrofoil applied to the forward section has the angle of setting increasing from the centre towards the two ends. Further expedients can be provided for decreasing the product of the lift coefficient by the immersed surface of the hydrofoils as the speed of the dinghy is increased, such as decreasing the foil chord of the hydrofoils from the ends towards the centre, the application of rigid trailing edge flaps having a width which is decreased from the centre towards the ends, or the adoption of flexible trailing edge flaps. <IMAGE>
Patent GB-2097404-A (GB)
Title: A process for the preparation of lysine-tryptophan oligopeptides and of their physiologically-useful derivatives and salts
IPC: C07K5/11
Filed: 1982-04-19
Abstract: A process for the preparation of ologopeptides constituted by lysinyl and tryptophanyl residues characterised by the following general formula (1):  (Lys)a(Trp)b 1 wherein Lys represents a lysinyl residue, Trp represents a tryptophanyl residue, a>o and b>o with the sole condition that when the peptide link, -CONH-, has originated through the amino group of the lysine, that the amino group be that in the  alpha  position to the carboxyl which gives rise to the formation of said link is carried out in three stages. Firstly, a compound of general formula 2 is reacted with a compound of general formula 3,   <IMAGE> in which R1 and R2 independently represent  beta -methylenidole or epsilon - aminobutyl with the -NH2 group protected or any residue of any peptide sequence (Lys)c-(Trp)d (wherein c and/or d>o) with the condition that at least one of R1 and R2 is a residue of  beta -methylenidole or protected  epsilon -aminobutyl, and R3 is an alkyl aryl or arylalkyl group, whereby to obtain the compound of the general formula 4 shown below:   <IMAGE> Secondly, the o-nitrosulphenyl group is eliminated and replaced by a hydrogen atom. Thirdly, the resultant amino-ester is treated to remove any amine-protecting groups and is then optionally saponified, followed by neutralization, to give the free peptide 1. Physiologically useful derivatives or salts may then be formed therefrom.
Patent GB-2102953-A (GB)
Title: Flow meters and resistance elements therefor
Inventor: BOHM JURGEN
IPC: G01F1/32
Filed: 1982-06-28
Abstract: A residance element 1 for a vortex flowmeter has a cross-sectional contour comprising a rectangular portion 3 followed by a step 6, 7 and then a trapezoidal portion 4 situated beyond the former in the direction of flow and narrowing in the direction of flow, the ratio between the thickness d of the rectangular portion and its height h amounting to 0.3 to 0.6, and the height h of the end of the trapezoidal portion 4 delimiting the rectangular portion 3 being in the ratio of approximately 3:4 to the height H of the rectangular portion 3. <IMAGE>
Patent GB-2102728-A (GB)
Title: Packing and compacting apparatus
Inventor: WHITEHEAD GARETH DIETLOF JOHN
IPC: B65B63/02
Filed: 1982-08-06
Abstract: Apparatus for compacting and packing material such as shredded newspaper includes a horizontal chamber (1) into which the material falls and a compactor ram (2) which is reciprocated within the chamber. A hinged tailgate (4) is pivoted about a transverse axis into an open position, forming a continuation of the chamber when the material has been compacted, and the compactor ram (2) then makes an extended stroke to discharge the compacted material from the chamber. The material is discharged into a bag (8) which lines a pivoted skip (9) mounted on a trolley (12), the skip having mechanically or hydraulically operated bag retaining and closing means to close the mouth of the bag prior to sealing. <IMAGE>
Patent GB-2110949-A (GB)
Title: The catalytic oxidation of deuterium into heavy water
Inventor: PFEIFFER HANSJORG
IPC: B01J8/04
Filed: 1982-11-16
Abstract: Apparatus for the catalytic oxidation of deuterium to form heavy water comprises a number of stages of solid catalyst beds (1, 1', 1'') which are connected in series for the flow of oxygen-containing gas, e.g. air, from 5, and which are in parallel with one another for the inflowing deuterium from 2 to be introduced via 3, 3', 3''. Disposed in the flow path of the combustion product after each catalyst bed (1, 1', 1'') is a cooler (6, 6', 6'') in which the heat of combustion evolved in the previous catalyst bed (1, 1', 1'') is transferred to a coolant. <IMAGE>
Patent GB-825128-A (GB)
Abstract: 825,128. Removing metal by spark discharge; making capacitors. DUBILIER, W. Feb. 1, 1956 [Feb. 1, 1955], No. 3199/56. Classes 83 (2) and 83 (4). Apparatus for demetallizing a uniformly metal-coated strip and then winding a predetermined length thereof into an electrical capacitor comprises a winding mandrel E and branding means F controlled by the mandrel for electrically burning away or evaporating predetermined portions of the coating along a zig-zag or sinuous line of progressively increasing pitch, the mandrel E and the branding means F being disposed closely adjacent one another, Fig. 2, or spaced apart by a distance measured along the strip substantially equal to the length of strip required for a single capacitor, Fig. 1, or to an integral multiple of such length. The strip A, Fig. 1, is unwound from a supply roll B, passes over a guide roller C, around contact roller C1, and over an arcuate support D, which may be fixed or preferably comprises a freely rotating wheel, co-operating with a demetallizing electrode F. The latter, which is in circuit with a battery J and contact roller C 1 , preferably comprises patterned branding wheels of the kind described in Specification 744,893 and is controlled by the mandrel E, which rotates at constant speed, to effect progressively increasing pitch of the sinuous demetallized line and thus compensate for winding of the strip. Rollers G 1 , G 2  are adjustable to vary the length of strip between the electrode F and mandrel E to suit different capacitors. In a modification, Fig. 3 (not shown), the electrode F and support D are movable to vary the said length of strip. In another embodiment, Fig. 2, the electrode F is adjacent the mandrel which is movably mounted so that its axis moves away from the electrode as the diameter of the wound strip on the mandrel increases. Specification 703,618 also is referred to.
Patent GB-2116113-A (GB)
Title: Metallised film laminate
Inventor: DRIVER WILLIAM EDWARD
IPC: B32B15/08
Filed: 1983-03-01
Abstract: A metallised film laminate comprises a carrier film 20 having a metallic layer 22 provided on one surface thereof, and may also have a second metallic layer 21 provided on its opposite surface. The said opposite surface of the film 20 is secured to a backing film 23 by way of an adhesive 24, while the metallic layer 22 is covered by a preferably transparent coating film 25. <IMAGE>
Patent GB-2118783-A (GB)
Title: Resistors
Inventor: PRYST THEODORE STANLEY
IPC: H01C1/144
Filed: 1983-03-28
Abstract: Resistors which are particularly suitable for achieving low resistance values, for example, in the range from 0.005 to 1 ohm. The resistor comprises a flat resistance ribbon 1 and two leads 2 secured one to each end of the ribbon 1. This assembly is enclosed in a electrically insulating encapsulant 4, and free ends of the leads 2 extending from the encapsulant 4, which may consist, for example, of a vitreous ceramic material. <IMAGE>
Patent GB-2119902-A (GB)
Title: Valve
Inventor: HAYWARD DR ALAN THOMAS JOSEPH
IPC: G01F25/00
Filed: 1983-05-05
Abstract: A direction control valve has an inlet port 7, first and second outlet ports 8a, 8b disposed on either side of the inlet port, and a valve member 4 displaceable to connect inlet port 7 to either outlet port while isolating it from the other and the valve member when in either position co-operates with the valve body 1 so as to provide two circumferential spaced compressible sealing zones with a circumferential chamber 9a between them, and the valve body is provided with means 6a for tapping off any fluid leaking into this chamber. A reversing valve may be made up of two such direction control valves combined either in series or in parallel. These valves are useful in the oil industry, and especially in connection with pipe provers. <IMAGE>