baber/WOPTO huggingface dataset:
Patent GB-2033101-A (GB)
Title: Soft bifocal contact lenses
IPC: G02C7/04
Filed: 1979-08-09
Abstract: A soil bifocal contact lens is made by mounting the concave back surface 15 of a lens blank 14 on the convex support surface 11 of a lens cutting lathe and cutting a first convex surface 18 on the front of the blank to produce a distance correction lens with a prismatic component. This can be done by offsetting the surface 11 to locate its centre of curvature 12 off the axis of rotation 13 of the lathe. The position of the lens is then adjusted to cut a second surface 23 in the thicker portion of the prismatic lens with the second surface 23 providing a near correction segment which has a prismatic component less than or of opposite sign to that of the distance lens. The blank is then hydrated to make it soft. In a preferred arrangement the distance and near correction lens portions are given equal and opposite prismatic components by rotating the lens by 180 DEG  relative to the support surface 11 before cutting the second surface 23. The lens may be truncated top and bottom and provided with a bottom ledge 31 for stabilising in the eye. <IMAGE>
Patent GB-2060920-A (GB)
Title: Thermographic paper
IPC: B41M5/44
Filed: 1979-10-15
Abstract: A thermographic paper suitable for use in electronic alphanumerical printing devices which use a semiconductor printing head and has a large shelf life, is highly sensitive and allows more contrast to be obtained comprises a paper base, a thermosensitive coating and a protective film of cellulose ether or polyvinylbutyral. The paper base comprises prehydrolysis sulphate cord pulp having a particular ground particle size, together with an amino-aldehyde resin, preferably a melamine-formaldehyde resin. The thermosenstive coating may comprise ferric stearate pyrocatechol- hexamethylenetetramine complex, zinc oxide, thuiourea and polyvinyl butyral (Example 1).
Patent GB-2033808-A (GB)
Title: Shooting or blasting cylinder, more particularly for core making machines
IPC: B22C15/24
Filed: 1979-10-23
Abstract: A shooting cylinder for use in core shooting machines comprises an inner frusto-conical member 1 of perforated sheet metal and an outer closely fitting frusto-conical member 3 of perforated sheet metal. A filter cloth 2 covers the peripheral surface of the inner perforated member 1 and is clamped thereon by the closely fitting perforated member 3. The outer perforated sheet metal member 3 is somewhat shorter than the inner member 1, so that the filter cloth 2 is securely clamped and maintained taut on the inner member 1. The interfitting of the two members 1,3 is such that adjacent apertures in the members 1,3 are in register to provide ventilating apertures of predetermined size. <IMAGE>
Patent GB-2034739-A (GB)
Title: Reactive dyestuffs
IPC: D06P1/382
Filed: 1979-11-06
Abstract: Dyestuffs of the formula   <IMAGE>  wherein     Pc is a copper- or nickel- phthalocyanine radical,     R1-R5 are H or optionally substituted alkyl,     B is a bridge member, R6-R8 are H, SO3H or COOH, at least one of R6-R8 being SO3H or COOH and the naphthalene nucleus may be further substituted, a is 1-3, b is 0-2, c is 1 or 2 and a+b+c<4, and mixtures thereof, and their use for dyeing and printing materials containing hydroxyl groups or containing amide groups, such as textile fibres, filaments and fabrics of wool, silk, synthetic polyamide fibres and synthetic polyurethane fibres, and for wash-fast dyeing and printing of natural or regenerated cellulose. The fastness characteristics achieved, especially wet fastness characteristics, are excellent.
Patent GB-2039544-A (GB)
Title: Circular warp knitting machine
IPC: D04B25/02
Filed: 1979-11-20
Abstract: A circular warp knitting machine is designed for knitting hosiery pieces and comprises a stationary needle cylinder 1, knitting needles 2, radially movable sinkers 3, two sets of guide needles 4a and 4b, received in grooves of two concentrically arranged annular guide bars 5 and 6, racking mechanisms for racking the guide bars 5 and 6 along the front of the knitting needles 2 and rocking mechanisms for rocking each set of guide needles 4a, 4b between the knitting needles 2. The needle cylinder 1 accommodates a sleeve 14 movable therealong to control movement of the sinkers 3, and a holder 28 movable along the needle cylinder 1 and carrying the knitting needles 2. Sliding frames 80 and 81 of the rocking mechanisms and concentric rotatable casings 82 and 83 carrying the annular guide bars 5 and 6 are coaxial with the needle cylinder 1. Reciprocation of some of the needles can be interrupted while the others continue to reciprocate for knitted curved hosiery portions. <IMAGE>
Patent GB-2044395-A (GB)
Title: Attaching Diaphragm of Rolling Lobe Airspring
IPC: F16F9/04
Filed: 1980-02-13
Abstract: A rolling lobe airspring 10 of the type embodying a tubular flexible member 12 of substantially uniform thickness throughout its length and circumference includes a modified piston 20. The piston includes a circumferential recess 26 near its end 28 which is secured to the flexible member 12. The end 25 of the flexible member 12 lies in the piston recess 26, which is of a depth corresponding to the thickness of the flexible member 12. The arrangement ensures that the flexible member 12 rolls over a surface with no discontinuities. <IMAGE>
Patent GB-2077383-A (GB)
Title: Drawing pin
IPC: B43M15/00
Filed: 1980-03-26
Abstract: A drawing pin is made easier to extract by hand by forming its head 1 with a preferably integral tab 2 which projects at an angle, away from the surface into which the pin is inserted and has a rib 3 or other fulcrum, close to the root of tab 2 which bears against the surface of the receiving material in which the pin is embedded. To extract the pin, pressure is applied to the tab 2 which, by pivoting about the fulcrum 3, serves to lever the pin out of the receiving material. <IMAGE>
Patent GB-2049937-A (GB)
Title: Pedometers
IPC: G01C22/00
Filed: 1980-05-02
Abstract: A pedometer has a mass (1) at one end of an arm (2) that is mounted for reciprocating pivotal displacement about its other end (3). A lever (40) is mounted on the arm for displacement about a first axis (42). The pedometer also has a circular disc (22), which is coupled to gearing driving a clock type or drum type display, is mounted for rotation about a second axis (4), and has a V-shape groove extending around its edge. The tip (45) of the lever (40) contacts the groove (24) at a location (46) offset from a line (47) joining the first axis with a second axis. The friction between the tip of the lever and the groove is such that displacement of the arm in one direction causes the tip of the lever to slide along the groove whereas displacement in the other direction causes the tip to engage the groove and rotate the disc. <IMAGE>
Patent GB-2080863-A (GB)
Title: Security bars
IPC: E06B9/02
Filed: 1980-05-19
Abstract: A security bar assembly for an opening comprises an elongate bar 10 extending across the opening, and sockets 16 secured to the respective sides 3 of the opening by means of fastenings 15 accessible only from within the socket. At least one socket is provided with an abutment 17 adjacent its outer end extending inwards into abutting relationship with the bar and one end of the bar is provided with spring loaded pins 20 which extend and engage behind the abutment 17 preventing withdrawal of the bar from the socket. <IMAGE>
Patent GB-2069323-A (GB)
Title: Automatic spitted food roasting apparatus
IPC: A47J37/04
Filed: 1980-05-29
Abstract: An automatic spitted food roasting apparatus, Fig. 3, comprises an endless conveyor (5) having a plurality of spit holding devices (6), e.g. with movable clamp bars 62, Fig. 1b. An automatic spitted food supplying device (10) cooperates with each spit holding device (6) in a first region of a conveyor path for successively supplying spitted foods to be roasted to the spit holding devices. Means (22), see also Fig. 2a, are provided for selectively supplying seasonings to the spitted foods at a second region of the conveyor path. In the first region of the endless conveyor (5) each spitted food to be roasted is held by one of the spit holding devices (6), in use, after being heated, the spitted food is applied with a seasoning in the second region of the endless conveyor, and thereafter in a third region of the endless conveyor the spit holding device is released to drop the spitted food. <IMAGE>
Patent GB-2056043-A (GB)
Title: Heat and mass transfer apparatus
IPC: F28F9/02
Filed: 1980-07-16
Abstract: A heat and mass transfer apparatus comprises a housing 1 in which are arranged a bank of tubes 5 the inlet and outlet ends of which are connected to headers 6. At opposite ends of the housing are elongate, hollow, converging branches 2 the bases of which adjoin the housing (e.g. for the conveyance of a fluid to and from the housing). The tube headers are arranged in the branches. <IMAGE>
Patent GB-2056382-A (GB)
Title: A rigid-axle suspension system for motor vehicles
IPC: B60G9/02
Filed: 1980-07-22
Abstract: In order to improve the performance of a rigid axle 1 the axle extends forwardly to a pivotal connection with a vehicle cross member 6. The arrangement thereby reduces the no-suspended mass of the axle while preserving the advantages of rigid-axle suspensions over independent-wheel suspensions. <IMAGE>
Patent GB-2092708-A (GB)
Title: Method and apparatus for fitting sleeves on rigid bars
IPC: B25B27/28
Filed: 1981-02-06
Abstract: This invention relates to methods of fitting synthetic resin material sleeves on reinforcing dowel bars and also to apparatus for fitting such sleeves. The apparatus described includes a hollow tapered member axially divided into two parts D1 and D2. The part D1 is fixed to a member B upstanding from a base A, while the part D2 is fixed to a lever L which is pivotally mounted at E on the member B. A spring H is provided to urge the lover in the direction to bring the two parts of the hollow tapered member together. In use, the operator fits a sleeve over the end J of the tapered member and the dowel bar is then inserted into the latter from the larger end. Insertion of the dowel bar forces the two parts D1 and D2 apart, thus causing lateral stretching of the sleeve and allowing the dowel bar to be pushed readily into the sleeve. Continued thrust on the dowel bar forces the sleeve over the end of the tapered member. <IMAGE>
Patent GB-2084067-A (GB)
Title: Reinforced handle for hand tools
IPC: B25G3/32
Filed: 1981-02-13
Abstract: The shaft of hand tools such as hammers, pickaxes and axes comprises a flat reinforcing bar 7 of spring steel which is encased by a grip of rubber. An end portion 8 of the bar is positioned within a slot 3 in the tool head 1, the slot extending longitudinally of the head and through the head longitudinally of the shaft. The bar is prevented from leaving the slot, in the direction in which it extends from the head, by a locating pin 10 which passes through an aperture in the bar and is located in a second, transverse, slot 6 in the head. <IMAGE>
Patent GB-2100313-A (GB)
Title: Garden shed
IPC: E04H1/12
Filed: 1981-04-10
Abstract: In a sectional garden shed wherein the front panel 4 is higher than the rear panel 2 to support a sloping roof panel 7, the side panels 11, 12 (one of which has a door 3) are of the same height as the rear panel whereby they can be interchangeably positioned. Each side panel supports a wedge-shaped panel 5 filling the gap between it and the roof. <IMAGE>
Patent GB-2102950-A (GB)
Title: Sensor systems for particles
Inventor: HARBOUR JOHN
IPC: G01F1/30
Filed: 1981-08-01
Abstract: The grain loss in a combine harvester can be detected by impact sensors, but different types of grain give different amplitude responses. In order to set a sensor system to optimum performance, a sample of the grain to be harvested is sprayed over a sensor (1). The impacts generate pulses which are fed through a gain controlled amplifier (2) to threshold detectors (5, 6) set at different levels. These distinguish the impact levels and govern a gain control circuit (9, 10, 11, 12, 21) which adjusts the amplifier so that the sample signals average at the higher threshold. For the working mode, a second gain control circuit (15) takes over and reduces the amplifier's gain so that the two thresholds define the limits of a band in which useful signals are accepted, with the average impact determined by the sampling adjustable within that band. Indicators (13, 18, 20) are provided to show the state of the setting up procedure to the operator. <IMAGE>
Patent GB-2083306-A (GB)
Title: Method of and apparatus for converting an analogue voltage to a digital representation
IPC: H03M1/12
Filed: 1981-08-17
Abstract: An analogue voltage-to-digital converter has a voltage divider (11) with a plurality of steps (13) for comparison with the unknown voltage and in addition provides interpolation between steps to improve the accuracy. Interpolation is effected by adding a ramp voltage from a generator (22) to the unknown, the ramp voltage ramping through a magnitude equivalent to at least one step. With one tap (13) on the voltage divider (11) selected, comparison of the unknown plus ramp voltage is effected in a comparator (14) successively as the voltage ramps. By noting when the combined voltage reaches the level of one of the reference voltages and by counting in a microprocessor (16) the number of comparisons made from the time when the ramp voltage is at a predetermined magnitude and comparing this with the time taken to ramp through one or a plurality of whole steps, determination can be made of the magnitude of the unknown voltage to a fraction of a step.
Patent GB-2107305-A (GB)
Title: Catalytic oxydehydrogenation
Inventor: DANIEL CHELLIAH
IPC: B01J27/185
Filed: 1981-10-09
Abstract: Isobutyric acid or a functional equivalent, e.g. a lower alkyl ester thereof, is oxidatively dehydrogenated to effect the vapor phase conversion thereof to the corresponding  alpha , beta - ethylenically unsaturated derivative by contact with a heterogeneous catalyst in the presence of molecular oxygen. The catalyst is composed of calcined phosphates of iron containing silver, cobalt, lanthanium or tellurium as a modifier or dopant component.
Patent GB-2090368-A (GB)
Title: Manufacturing thermo-insulating tubular sheaths
IPC: B29C53/48
Filed: 1981-11-09
Abstract: A machine for the continuous manufacture of thermo-insulating tubes from foamed closed cell material comprises a conveyor (6) for conveying a strip (1) of that material through a plurality of treatment stations. At a first or loading station the strip is inserted between guide rollers (3). It then proceeds to a first vertical bending station where it is acted upon by rollers whose axles gradually change from horizontal to vertical (Fig. 1, not shown) and by rollers (8) so as to be folded into a U-shape. Subsequently the folded strip passes to a further station where a roller (9) brings the lips of the strip into close adjacency. Thereafter the strip passes successively through a station which accurately spaces the lips in parallelism by operation of a disc (10) and rollers, a heating and lip fusion station (11) a cooling station (13, 14) and optionally a shape memorization oven (16). <IMAGE>
Patent GB-2121598-A (GB)
Title: Sealing optoelectronic packages
Inventor: KIMBER PAUL KEVIN
IPC: H01L31/0203
Filed: 1982-04-27
Abstract: An optoelectronic package, containing a semiconductor device, comprises a metal housing 1 and a transparent glass lid 4. The lid is sealed to the housing by means of a two part seal, which consists of an inner seal of a material such as epoxy resin 11 and an outer seal of solder material 10. The solder material provides a true hermetic seal to prevent ingress of contamination to the semiconductor body, whilst the epoxy material prevents fluxes given off by the soldering operation from reaching the interior of the housing. Conveniently, preforms of both solder material 10 and epoxy material 11 are carried by a common carrier 9 comprising a mesh of stainless steel Wires. The assembly is heated and compressed to cure the epoxy resin, the spacing between lid 4 and housing 1 being determined by the thickness of the solder preform. The solder is then melted to complete the seal preferably using localised heating. <IMAGE>
Patent GB-2108654-A (GB)
Title: Continuous radioactivity flow monitor
Inventor: BAROOSHIAN ARMEN V
IPC: G01N27/447
Filed: 1982-08-26
Abstract: In a chromatographic system for analyzing materials containing radioactive components, a sample eluted from a column is mixed with a scintillation cocktail and then passed through a flow cell positioned adjacent at least one photomultiplier tube preferably between two tubes, to detect scintillations in the mixture. The flow cell 20 comprises a planar spiral of transparent tubing 23 encased on each side by transparent plates 21, 21'. The photomultiplier tubes are placed on opposite sides of the cell in contact with the faces of the plates 21, 21'. This flow cell can also be used to analyze gel extruded from a gel electrophoresis column after admixture with a scintillation cocktail in a homogenizer. <IMAGE>
Patent GB-2107156-A (GB)
Title: Method and apparatus for modulating and demodulating carrier signals
Inventor: LOCKHART GORDON BURGESS
IPC: H04L5/02
Filed: 1982-09-30
Abstract: Modulation of a carrier signal using both amplitude and angle modulation increases the information capacity of transmission without increasing bandwidth. Complex zeros in an amplitude modulating signal are detected by filters 21 and detectors 22 and a conjugation function dependent on the time of occurrence and imaginary root values of the zeros is generated by a generator 26. The conjugation function is inverted or not inverted in accordance with a binary data signal and used to control the frequency of an oscillator 28 whose output is then the angle modulated carrier signal and is amplitude modulated by the signal applied to the filters. On reception the amplitude modulating signal is recovered by an envelope detector 35 and the data signal by a phase locked loop 37. <IMAGE>
Patent GB-2108885-A (GB)
Title: Method of producing preformed solder material for use in soldering electronic components
Inventor: ARBIB GORDON FRANCIS
IPC: B23K35/22
Filed: 1982-10-14
Abstract: The production of preformed solder material in the shape of, for example, washers is effected in a more convenient and less costly manner by feeding a thickened fluxed solder paste on to a sheet carrier material, preferably a flexible carrier material, so as to deposit on the carrier material a plurality of the desired preformed shapes and then heating the preformed shapes on the carrier material so as to harden them and cause them to releasably adhere to the sheet of carrier material. The fluxed solder paste is fed on to the sheet of carrier material by a screen printing technique or by means of a stencil. When required for use, the preformed shapes of fluxed solder material and the carrier material can be separated or, if the carrier material is a heat shrinkable plastics film the preformed shapes can be positioned whilst still on the carrier material to which heat is then applied to cause the plastics film to shrink-wrap the soldering site.
Patent GB-2107801-A (GB)
Title: Fuel injection pump, especially for a diesel-powered internal- combustion engine
Inventor: HOFKEN WILFRIED
IPC: F02M59/48
Filed: 1982-10-21
Abstract: In a fuel injection pump a thrust- carrying piece 13 is directly braced against a planar and microfinished front face 12 of a piston guiding body 2, whereby a valve closing body guided in the thrust-carrying piece 13 with its planar sealing surface 21 in the rest position is directly seated on the front face of the piston guiding body 2. In case of repairs thus the high- pressure sealing surfaces between the thrust-carrying piece 13 and the piston guiding body 2 and the valve face can time-savingly be re-worked in a single working step. <IMAGE>
Patent GB-2115989-A (GB)
Title: Programmed cartridge/video machine adaptor
Inventor: SMITH VICTOR ERNEST
IPC: H05K5/02
Filed: 1982-10-28
Abstract: An adaptor permits a programmed cartridge 4 of a first type to be used with a mechanically and/or electrically incompatible video machine 1 of a second type. Alternatively the adaptor may fit between a programmed cartridge and a video machine to which the cartridge is directly connectible in order to modify the form or operation of the programme of the cartridge. <IMAGE>
Patent GB-823193-A (GB)
Abstract: 823,193. Capacitors. MOCHI, E. G. Jan. 27, 1958 [March 23, 1957], No. 2590/58. Drawings to Specification. Class 37. In a capacitor of the type in which a tantalum oxide anode is contained within a housing which forms the cathode, and the space between the anode and cathode is filled with an electrolyte such as sulphoric acid, a resilient packing being provided at the open end of the housing through which passes a tantalum wire which is connected to the anode and outside the housing is welded to a nickel wire, in order to protect the welded joint the tantalum lead and nickel lead adjoining the weld are formed into a substantially circular shape about the weld and this shape is arranged to lie in contact with the resilient packing. The complete capacitor is then resin coated whereby the welded joint is embedded in the coating and thereby supported.
Patent GB-2113792-A (GB)
Title: Push-pull control cable and control systems using same
Inventor: GREEN EDWARD ALDEN
IPC: F16C1/10
Filed: 1983-01-18
Abstract: A push-pull control cable (36) for use with a per se known tensioning device to control a further device from a remote location comprises at least one pair of moveable core members (16) separately slideably disposed within open-ended channels (17) that extend coextensively through a flexible conduit (18) which in turn is enclosed by a protective jacket (22) that may comprise one or more metallic reinforcement and polymeric layers (20, 21). The conduit and jacket are sufficiently shorter in length than the moveable core members such that they are able to extend from opposite ends of the conduit for a distance sufficient to enable them to be connected to a control (3, 4, 5, 6) see Fig. 6 and a tensioning device (10, 11, 12) see Fig. 6 which maintains the core members in tension in the manner desired, and the cable (36) is adapted such that the core members are able to slide in the same or opposite directions along the channels without buckling or interfering with each other. The device D to be controlled is connected to be operated via the tensioning device. <IMAGE>
Patent GB-2118177-A (GB)
Title: N-substituted- tetrahydrothiazines and their use pesticides
Inventor: HARRIS MARTIN
IPC: C07D417/04
Filed: 1983-03-25
Abstract: N-substituted 2- (nitromethylene)-tetrahydro-2H-1,3- thiazines of the following formula have pesticidal, especially insecticidal, activity:   <IMAGE> in which R represents an alkyl or alkenyl group of up to 26 carbon atoms; or an alkyl group substituted by one or more halogen atoms, or by an alkoxy, alkoxycarbonyl, alkanoyloxy, oxobicycloalkyl, cycloimido, optionally substituted phenyl or phenoxy, or trialkylsilyl group, or by a quaternary ammonium group of formula:       Q<->R3<1>N<+>- in which each group R<1> is an alkyl group and Q<-> is a monovalent anion; and n is 0 or 1.