baber/WOPTO huggingface dataset:
Patent GB-1072310-A (GB)
Title: Filter and retaining device
IPC: A47J31/06
Filed: 1965-12-15
Abstract: In a coffee percolator, a filter tissue of high wet strength is used as a disposable liner for the percolator coffee basket.  The tissue is of square or cloverleaf shape and has a central hole (12) to fit the percolator riser tube (9).  When it has been installed on the floor of the basket (5) and filled with coffee grounds, the apertured corners of the tissue are folded inwardly and threaded, in superposition, over the top of the riser tube (9).  The apertures (13) in the corners are preferably formed by slits in a star configuration and are surrounded by an area of pin-hole perforations (15).  The central hole (12) may be either circular or star-shaped.
Patent GB-1491448-A (GB)
Title: Lamps
IPC: F21V5/00
Filed: 1974-12-18
Abstract: 1491448 Lamps THORN ELECTRICAL INDUSTRIES Ltd 18 Dec 1974 [18 Sept 1973] 53378/74 Heading F4R A lamp comprises a light source 12 disposed within a cavity in a body 10 of transparent material and secured to the walls of the cavity by a transparent adhesive to form an integral unit, wherein the body 10 has an outer rear surface 11 which forms a reflector so that, after being totally internally reflected at the surface 11, light leaves the lamp through the front face 14. The body 10 may be formed of clear, coloured or multicoloured plastics material and its front face 14 may be formed as a lens, e.g. of the Fresnel ring type shown in Fig. 1, to form a beam projector. Alternatively, Fig. 2, the front face 14 may carry a symbol or legend, e.g. formed by contrasting smooth and rough surface parts, so that the lamp may act as an indicator whose function may be denoted by the symbol or legend. As shown the lamp is part of the control knob for the switch for car headlights. The light source 12 may comprise a filament, glow or discharge lamp or a lightemitting diode.
Patent GB-1161517-A (GB)
Title: Improvements in and relating to the manufacture of Semiconductor Devices
IPC: H01L21/00
Filed: 1966-11-29
Abstract: 1,161,517. Semi-conductor devices. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 29 Nov., 1966 [30 Nov., 1965], No. 53407/66. Heading H1K. A semi-conductor device is produced by alloying or alloy-diffusing impurity material into a silicon body having an average etch-pit density of 10<SP>3</SP>cm<SP>-2</SP> or greater. The relatively large number of dislocations prevents the molten impurity from spreading over the surface of the body. The silicon material may be produced by pulling from a doped melt and zone refining, the resulting ingot being sliced and tested by etching in an aqueous solution of HF, HNO 3  and CH 3 COOH to produce etch pits. Slices having an average etch-pit density greater than 10<SP>3</SP>cm<SP>-2</SP> are selected and divided into smaller pieces for subsequent processing. Square wafers of selected silicon are lapped, cleaned and chemically etched and dots of impurity material are placed on the surface and melted under reduced pressure to wet the surface of the body. The wafers are then heated in hydrogen to alloy-diffuse the impurity into the wafer to produce a hyper-abrupt junction. A molybdenum electrode is joined to the wafer using an aluminium-silicon eutectic solder, and a lead wire is joined to the alloy dot with a conventional solder. The device is then electrolytically etched and coated with a protective material such as silicone wax. The impurity material may be one or more of B, Al, Ga, In, P, As, Sb or Bi, and may be incorporated in a carrier material such as Pb, Sn, Ag, Au. Ranges of suitable combinations are given. The invention may be used in the production of transistors, rectifiers, photo-sensitive cells, and capacitors, including variable capacitance diodes.
Patent GB-1446560-A (GB)
Title: Engine ignition timing control
IPC: F02P5/155
Filed: 1973-11-19
Abstract: 1446560 Timing ignition NISSAN MOTOR CO Ltd 19 Nov 1973 [20 Nov 1972]  53518/73 Heading F1B An ignition spark timing control system for an internal combustion engine of a motor vehicle comprises in combination an engine speed sensor 38 which produces an analogue signal dependent on the engine speed, a gear ratio sensor 40 for producing a plurality of analogue signals each representing one of the gear ratios of a power transmission, an engine temperature sensor 42 which produces an analogue signal dependent upon engine temperature, a throttle opening sensor 44 which produces an analogue signal dependent on throttle opening a vacuum sensor 28 which produces an analogue signal dependent on the vacuum in the engine intake manifold, a logic circuit 48 connected to the sensors for producing logic output signals in dependence on the signals from the sensors, a function generating unit 24 connected to the logic circuit and comprising means for generating signals as functions of the logic output signals, means to generate a function generating unit output signal, a triggering device 10 for producing a pulse signal with a repetition rate proportional to the engine speed, a control circuit 20 connected to the function generating unit and the triggering device, the control circuit 20 comprising means for generating an output pulse signal 16, 26, 62 having a pulse width less than the pulse spacing and the same repitition rate as the pulse signal from the triggering device, and means for modulating the pulse width of the output pulse signal from the control circuit in dependence on the function generating unit output signal, and ignition means 66, 68, 70 connected to the control circuit 20 for effecting ignition in the engine in response to the modulated output pulse signal. The logic circuit 48 is described in detail with reference to Fig. 6 (not shown).
Patent GB-1161569-A (GB)
Title: Device for Abrading and applying Biological Substances to the Skin of a Patient
Inventor: BUNDY MILO EUGENE
IPC: A61B17/20
Filed: 1966-12-05
Abstract: 1,161,569. Vaccination appliances. MATACO Inc. 5 Dec., 1966, No.54336/66. Heading A5R. A device for use in scratch tests comprises a structure 11 having wells 13 for containing biological substances, e.g. allergens, vaccines to be applied to the skin and a flexible abrading unit 18 the lower surface of which is provided with skin-abrading members 21. The abrading unlit may be secured to the multiwell structure 'by means of clips 15. Each skinabrading member comprises a positioning element 22 which has a platform element 23 from which a plurality of abrading elements 24 depend. In a modification, handles may be provided on the upper surface of the flexible abrading unit.
Patent GB-1255426-A (GB)
Title: Methods of moistening mixable materials and apparatus for carrying out the methods
Inventor: AHRENBERG KURT
IPC: B28C7/02
Filed: 1969-11-10
Abstract: 1,255,426. Mixing apparatus. K. AHRENBERG. 10 Nov., 1969 [15 Nov., 1968], No. 54913/69. Heading B1C. An apparatus for moistening granular material, such as foundry sand with water, comprises a clockwise rotating mixing container 1 in which operate an anti-clockwise rotating tool A and a higher speed auxiliary tool B of lower moment of inertia, the power consumption of tool B controlling the addition of water. A metered quantity of water which leaves the moisture content below that desired is first added. The power used by the motor 4 is then measured by a means 11 having contacts 10a-d which, depending on the number tripped, open a corresponding number of water supply valves 8a-d which are closed by a timer or flow meter. Alternatively all the valves may be first opened and then closed in succession in dependence on the power used by the motor 4. In another arrangement (see Figs. 2-5, not shown) the water is added in four stages, the duration of and the intervals between which are automatically adjustable in dependence on the power consumption of the mixing tool. Temperature sensing means may be used in conjunction with a computer to correct the influence of temperature on the amount of water required.
Patent GB-1382470-A (GB)
Title: Preparation of vincristine
IPC: C07D519/04
Filed: 1972-12-04
Abstract: 1382470 Preparation of vincristine RICHTER GEDEON VEGYESZETI GYAR RT 4 Dec 1972 55876/72 Heading C2C Vincristine is prepared by oxidizing vinblastine, or a salt thereof, with chromic acid or its salts to give a mixture of vincristine and N- desmethyl-vinlastine, which may be separated chromatographically. The N-desmethyl-vinblastine-containing mixture may be conventionally formylated to convert the N-desmethylvinblastine to vincristine.
Patent GB-1286644-A (GB)
Title: Pneumatic transportation of materials and apparatus therefor
Inventor: RAAD RALPH RAHIEF
IPC: B65G53/00
Filed: 1969-11-14
Abstract: 1286644 Separating particles from gas stream R R RAAD 14 Nov 1969 [18 Nov 1968] 55983/69 Heading BIT [Also in Division B8] In a pneumatic conveyer system for solid material, a fan 22 is connected in parallel with the material conveying duct. As shown, a chamber 18, having a lateral outlet 20 connected to a centrifugal fan 22, is connected between sections 14, 16 of the conveyer duct, and the outlet 24 of the fan is connected by a further duct to the duct section 16. The chamber 18 is provided with baffles to prevent material from entering the fan. The inlet duct section 14 is provided with baffles for deflecting the material into the lower part of the chamber 18 beneath a plate (34), Fig. 1 (not shown). Air and fines in the upper part of the chamber are deflected laterally through vanes 38, which impart a swirling motion to the air, onto the surface of a conical member 40, whereby the fines are thrown outwardly. The substantially clean air at the centre of the whirling stream passes through an aperture in the centre of the conical member 40 into the outlet 20. The air carrying the remaining fines makes a 'hairpin' change of direction around the periphery of the member 40 and passes through further vanes 44 to the outlet 20. The separated fines then pass down a shoot 60 into the duct section 16.
Patent GB-1291984-A (GB)
Title: Multiple piston hydraulic pump or motor
IPC: F04B1/20
Filed: 1969-11-18
Abstract: 1291984 Hydraulic reciprocating pumps and motors SUNDSTRAND CORP 18 Nov 1969 [19 Feb 1969] 56494/69 Heading F1A The fixed valve plate 52 controlling the supply and exhaust of liquid through ports 51b to and from cylinder 23, 24 in a rotary cylinder block 14 of a swash plate pump or motor is provided with inlet and outlet ports having tapered groove portions 76, 86 which communicate with each cylinder port 51b before the piston in its associated cylinder reaches its respective extreme end position. This arrangement reduces the shock waves which occur and thus reduces noise. The valve plate shown is of a pump and has an inlet section 68 and an outlet section 70. The inlet section is in the form of one or more circumferentially spaced arcuate slots 83, 84, 85 and a circular through bore 81 into which leads the tapered groove portion 76. The outlet section 70 is similar to the inlet section and comprises one or more arcuate slots 90, 91, 92, bore 88 and tapered groove portion 86. The tapered groove portions 76, 86 taper in depth as well as width.
Patent GB-1280858-A (GB)
Title: Dyeing and/or printing polyesters with azlactone dyes
IPC: C09B23/01
Filed: 1969-11-19
Abstract: 1280858 Dyeing polyesters BADISCHE ANILIN-& SODA-FABRIK AG 19 Nov 1969 [20 Nov 1968] 56625/69 Heading D1B [Also in Division C4] Polyesters are dyed with azlactone dyestuffs of the general formula: wherein R is H, Cl, Br, methyl, ethyl, methoxy or ethoxy; R<SP>1</SP> is H, Cl, methyl or methoxy, and R<SP>2</SP> is H, Cl, Br, methyl, ethyl, methoxy or ethoxy. High temperature and thermosol methods may be used and mixtures of dyes may be used at about 100C in the presence of carriers. Green-, red- and brown-yellow shades are obtained.
Patent GB-1204538-A (GB)
Title: Traverse type collapsible slat blind structure to be mounted in a window, door or like opening
Inventor: TOTI ANDREW JOE
IPC: E06B9/36
Filed: 1967-12-19
Abstract: 1,204,538. Collapsible traverse slatted blind. A. J. TOTI. 19 Dec., 1967, No. 57653/67. Heading E1J. In a collapsible traverse slat blind with slats rotatably mounted about longitudinal, preferably vertical axes, the slats partake of the traverse movement in sequence in response to the traverse movement of the first slat of the series and the angular orientation of the slats during the traverse movement and in the extended position of the slat series is determined by the selected orientation imparted to the first slat at the commencement of its traverse movement, by means of a linkage mechanism interconnecting each two adjacent slats, which mechanism permits the selection of any one of predetermined angular positions and secures the slats in the selected position during and at the end of their traverse extending movement. Five embodiments are described in some of which the orientations are limited to fully closed and an intermediate orientation, whilst in others. the fully open orientation and more than one intermediate orientation is possible. As shown in Figs. 9 and 10, the linkage mechanism comprises a pair of rigid link members 21, 22 connected in scissors-like fashion and. slidable and pivotable relative to respective slats of the pair of adjacent slats, mounting structures such as slotted tabs 26, 27 being formed from the slats to this end, and an angular guide member or stop such as a short flange 24 is provided to restrict .the angular movement of the link members 21, 22 relative to the pair of slats 1. The first slat 1' of the series may be of stiff plasbics or aluminium with stiffened edges 16 for manipulation of the slat to the desired orientation setting and traverse movement. In another embodiment Figs. 37, 38, 42, the S-section shape of the slats 1 and the similar cooperating shape of the linkage dictates the intermediate orientation of the slats, each link member 96 being slotted and secured to each slat by a button 99 pivotally received in an aperture 101 formed centrally width wise of the slat, the member 96 having its slotted end portions slidably engaged with the respective buttons 99 on adjacent slats. The slotted end portions of the link members 96 include a detent or notch engageable with the buttons 99 with the slats in the extended positions, to controllably resist traverse movement of adjacent slats relative to each other in the extended positions.
Patent GB-1217320-A (GB)
Title: Improvements in or relating to photo-typesetting
IPC: G09G1/14
Filed: 1967-12-19
Abstract: 1,217,320. Television; cathode-ray tube displays. DR. ING. RUDOLF HELL. 19 Dec., 1967 [24 Dec., 1966], No. 57684/67. Headings H4F and H4T. A method of reproducing characters and patterns on the screen of a cathode-ray tube in an electronic photo-type setter comprises scanning a character or pattern original to derive corresponding video signals which, in reproduction, are utilized for ON-OFF control of the tube beam as it is scanned, rasterwise, by deflecting it in discrete steps the lengths of which constitute predetermined multiples of a given elementary length (or quantum), the number of the multiples being predetermined by setting instructions. These instructions contain all the data required for type-setting and include data which determine the magnitudes of the deflection quanta in the vertical and/or horizontal directions so that the size of the reproduced characters &c. may ve varied and also to allow " italics " to be produced. An electromagnetically deflected display tube is employed and the screen display is photographed on a film moving continuously or in steps at right angles to the direction (vertical) of line scanning. After developing the film is reproduced by a printing process, e.g. the offset process.
Patent GB-1197139-A (GB)
Title: Improvements in Socket Retaining Means for Splined Drive Shafts
IPC: F16D1/10
Filed: 1968-12-05
Abstract: 1,197,139. Securing sockets on shafts. ATLAS COPCO A.B. 5 Dec., 1968 [8 Dec., 1967], No. 57830/68. Heading B3N. In an impact nut runner, socket 15 is secured to shaft 11 of the impact wrench, by splines 17, 13 and a retaining pin 23 in transverse slots 20 adjacent the shaft end, the pin ends being movable from positions abutting the ends 18 of splines 17 to retain the socket on the shaft, to positions in axial alignment with the grooves between the splines 17 to release the socket. As shown, the slots 20 are inclined axially so that the pin is moved between its retaining and releasing positions by axial movement thereof. The pin is mounted in a rubber block 24 having a tail 25 which biases the pin 23 to its retaining position. Again, Fig. 4 (not shown), the tail 25 is replaced by a helical spring (27). Further, Figs. 5-7 (not shown), the slots 20 extend at right angles to the axis of the shaft, and the pin is rotated by a screwdriver engaging a slot in the block 24, a groove (34) in one end of the slots retaining the pin in its retaining position. Also, Figs. 8-10, (not shown), the block 24 is fixed in the bottom of the bore 21 and has an axial leg (35) carrying the pin which is moved transversely by depressing the leg against the spring force of a pair of integral webs (36).
Patent GB-1200069-A (GB)
Title: Dyeing and printing polyamide fibres with anionic dyes
IPC: D06P1/655
Filed: 1967-12-22
Abstract: 1,200,069. Dyeing polyamides with anionic dyes. BADISCHE ANILIN-& SODA-FABRIK A.G. 22 Dec., 1967 [23 Dec., 1966; 14 Feb., 1967], No. 58286/67. Heading D1B. Polyamides are dyed or printed at pH 5-9 with an anionic dye in presence of a sulphonium salt of formula I: which may be applied previously or simultaneously with the dye and in which Y is an unsubstituted or substituted hydroxyalkyl or dihydroxyalkyl group having one to four carbon atoms, Y' is the same as Y or may be a methyl or ethyl group, Y<SP>2</SP> is an alkyl radical of 8-16 carbon atoms and X- is an anion. The dyed or printed polyamide may be subjected to an after treatment with aqueous acetic acid, tannin and tartar ametic, mixtures of the sulphonium compounds may be employed preferably as 0À5-10% in weight of the polyamides.
Patent GB-972911-A (GB)
Title: Improvements in and relating to selvedging of nets
IPC: D04G1/00
Filed: 1962-04-03
Abstract: 972,911. Netting. BRIDPORT-GUNDRY, and H. M. SANCTUARY Ltd. April 3, 1963 [April 3, 1962; April 4, 1962], Nos. 584/57 and 12998/62. Headings D1C and D1K. To prevent the selvedge knots of a net from slipping a yarn is tied around each selvedge knot This is achieved by mounting the net so that its selvedge can pass between two tables 24, 25 carrying slides 26 in which a shuttle operates to pass through the net from one slide to the other. The tables are mounted to oscillate such that the shuttle having passed through one opening A in the net it then passes back on the outside lower edge of the net B as seen in Fig. 5. Arms 30, 31 then engage the yarn Fig. 12 to hold it in a bight whereafter the shuttle passes through adjacent opening C and back on the outside of the net D to pass through the bight formed by the arms 30, 31. Subsequently the yarn is drawn taut to grip the selvedge knot and the fabric is shogged to present the new knot for tying. Alternatively the yarn may be held to form a bight prior to the shuttle passing through the opening A as shown in Fig. 13c, and this results in a knot tying operation as shown in Fig.13d.
Patent GB-1457528-A (GB)
Title: Extracrion of heavy metals from industrial waste waters
IPC: B03C1/015
Filed: 1973-12-18
Abstract: 1457528 Removing heavy metals from waste water NIPPON ELECTRIC CO Ltd 18 Dec 1973 [19 Dec 1972 20 Dec 1972 10 April 1973] 58620/73 Headings C1A and C1C A method of extracting heavy metals from waste water containing ferrous ions in an amount of at least twice the molar amount of all heavy metals other than iron, comprises the steps of adding alkali to the waste water in an amount of 0À9-1À2 equivalents of acid radical contained in the waste water to form a suspension of hydroxides of ferrous ions and/or the other heavy metals, bubbling an oxidizing gas into the suspension to stir up and at the same time to oxidize the suspension, whereby crystals containing ferric ions and further containing and/or adsorbing the heavy metal ions originally contained in the waste water are precipitated and separating the precipitated crystals to obtain clear water from which heavy metals have been extracted. An initial addition of ferrous ions may be made to waste water which contains no or insufficient ferrous ions. Alkaline waste water is treated without the step of alkali addition. The precipitated crystals may include ferromagnetic crystals which may be separated with a magnet. Heavy metals having a smaller ionization potential than iron may be removed by plating metallic iron added to the waste water. The heavy metals exemplified include Cr, Cd Pb Cu, Ni, Bi and Hg.
Patent GB-592645-A (GB)
Abstract: 592,645. Gyroscopic apparatus. SPERRY GYROSCOPE CO., Inc. April 21, 1941, No. 5154. Convention date, April 19, 1940. [Class 97 (iii)] In a gyroscope having two degrees of freedom such as in a rate of turn indicator, the bearings of the ring or rotor casing in the instrument frame comprise deflection springs so as to provide freedom to tilt as well as a yielding centralising force. As shown, the rotor ring 6 is provided with trunnions 7, 7<1> through slots in which pass blade springs 9, 10, the outer ends of which are clamped to stiffer blade springs 11, 11<1>, 12, 121 which in turn are clamped to the instrument casing 1 by brackets 13. Small angles of precession result only in a bending of the weak springs 9, 10 with consequent small restraint, larger angles, however, cause bending of the springs 11, 11<1>, 12, 12<1> due to the effective shortening of the springs 9, 10 resulting in a larger restraining and centralising force. Dampers comprising sleeves 18 of felt &c. may be provided as well as similar dampers on the springs 9, 10 to damp out rotary oscillations. Further damping means may comprise slotted discs 20 immersed in oil in chambers 23, Fig. 5.
Patent GB-1373970-A (GB)
Title: Windscreen washer
IPC: B60S1/52
Filed: 1971-12-22
Abstract: 1373970 Windscreen washers AB WURTH 22 Dec 1971 [23 Dec 1970] 59697/71 Heading A4F A windscreen washer comprises a conduit for connection to a source of washing liquid, a deflecting body for deflecting the air-flow over a windscreen and means on a face of the body for securing the body and one end of the conduit to a windscreen wiper arm, said end of the conduit having, or being connected to, a discharge aperture near said face of the body, and the body and securing means being so shaped that, in use, air-flow over the body will produce turbulence in the vicinity of the aperture. In one embodiment washing liquid is discharged through a perforated flexible tube 12 mounted on a circular boss 30 behind a wind detecting plate 27 secured to a wiper arm 3 by screws 2 and a clamping plate 32. In other embodiments the liquid discharging means comprises perforated tubing clamped either between a non-circular wind deflecting plate 7 Fig. 1 (not shown) and a non-circular clamping plate or between circular wind deflecting and clamping plates 23, 24 Fig. 3, (not shown). In a further embodiment apertures are provided in the wind deflecting plate through which the wind passes to deflect the discharge washing liquid on to the windscreen. In further embodiments the washing liquid is discharged through apertures in a plate integral with or secured to the wind deflecting plate. As a modification the deflector body may be formed integral with the windscreen wiper arm, the integral connection and the deflector body being so shaped that in use air turbulence will be produced in the vicinity of the liquid discharge aperture or apertures.