baber/WOPTO huggingface dataset:
Patent GB-1249954-A (GB)
Title: Shadow masks for color television tubes
IPC: H01J29/07
Filed: 1969-11-20
Abstract: 1,249,954. Colour television tubes. SONY CORP. 20 Nov., 1969 [21 Nov., 1968; 30 Dec., 1968], No. 56847/69. Heading H1D. A shadow mask for use with co-planar beams in a colour television rube, comprises a plurality of apertures in a metal plate, the apertures being disposed at the intersections of a family of orthogonal curved lines. When the beams lie in a horizontal plane, the generally horizontal rows of apertures should be barrel-shaped and the generally vertical columns pin-cushion shaped, and the specification derives equations for the curves when the screen is spherical and when it is cylindrical. The pitch of the apertures should decrease away from the centre along the horizontal axis and increase along the vertical axis according to parabolic laws, so that the phosphor dots on the screen may form a uniform close-packed hexagonal array. 1,203,421. Two-part couplings. SOC. METALLURGIQUE D'IMPHY. Oct. 30, 1967 [Nov. 28, 1966], No.49127/67. Heading H2E. In a connector for heavy current installations, plug contacts comprising pairs of resilient blades 7 have dimples 8 which are urged by coil springs 9 into point contact with pairs of opposed resilient blades 3 which constitute socket contacts. Each set of blades 3, 7, together with spacers 10, 4 and 5, is clamped between two non-magnetic steel slabs 6, 11, a terminal conductor 3b or 7b being clamped between the blades of each contact. The blades 3 or 7 of each contact may be of the same or opposite polarity. Positioning abutments (not shown) hold the engaged contact parts 1, 2 in precise relative positions, one part being fixed and the other movable.
Patent GB-1218320-A (GB)
Title: Liquid applicator
Inventor: RAYMENT DEREK WILLIAM
IPC: B05C1/00
Filed: 1969-11-20
Abstract: 1,218,320. Coating-apparatus. D. W. RAYMENT. 20 Nov., 1969, No. 56883/69. Heading B2L. A ceiling coating apparatus comprises a roller 1 and container 8 supported on a stem 10 which is movable relative to a sleeve 11 on a carriage 12. In a modification the container 7 may be movable on a railway 15 fixed to the top of the stem 10.
Patent GB-1452498-A (GB)
Title: Fm receiver
IPC: H04B1/10
Filed: 1973-12-07
Abstract: 1452498 FM demodulators; squelch circuits SHARP KK 7 Dec 1973 [9 Dec 1972] 56904/73 Headings H3A and H3T A phase-lock-loop type frequency demodulator 6 comprises a further phase comparator 22 receiving the input signal and oscillator signal of the loop and producing a signal indicating phase-lock. As shown the indicating signal is used to silence the output amplifier 12 when phase lock is absent, e.g. when tuning between stations.
Patent GB-1196410-A (GB)
Title: Servo-Control System
Inventor: MAGUIRE PETER HUGH UNSWORTH
IPC: G05D3/14
Filed: 1966-12-21
Abstract: 1,196,410. Electric selective signalling. TICKET EQUIPMENT Ltd. 4 Dec., 1967 [21 Dec., 1967], No. 57119/66. Heading G4H. A servo control system includes a control potential divider 32 parallelly connected to at least one controlled potential divider 34 (Fig. 2), the required positions of, e.g. printer type wheels on shafts, being manually entered by positioning wipers 38, 40 of divider 32, the error signal from comparators 46 receiving the outputs of the wipers 38, 42 and 40, 44 of dividers 32, 34 being fed via amplifiers 48 to control via solenoids and pawls the shafts, the latter stepping the wipers 42, 44 to reduce the error signal to zero. The inputs to the comparators 46 from controlled potential dividers 34 are incremented by a signal from a winding 52 so that when there is no error signal to amplifiers 48 the wipers rest on contacts at different potentials. Consequently if an open circuit fault develops there is a constant output to the amplifiers which may be used to give an alarm.
Patent GB-1371979-A (GB)
Title: Tubular secondary cell with annular electrodes
IPC: H01M10/28
Filed: 1972-12-12
Abstract: 1371979 Alkaline secondary cells GOULD Inc 12 Dec 1972 [13 Dec 1971 (3)] 57192/72 Heading H1B An alkaline secondary cell has interfitting porous metal electrode bodies 34A, 36A of nickel or iron and separated by an electrolytecontaining fabric (woven or non-woven) or gel separator 38. The co-operating surfaces of the electrode bodies are correspondingly frusto-conical. The bodies are respectively impregnated with positive and negative active materials. The metal case and a metallic connector 30A of nickel or steel provide terminal connections. In variants in which the inner surface of the innermost electrode body is right cylindrical the metallic connector may be made from sheet metal and take the form shown in Fig. 11, or take the form of a mesh. Such connectors are at least partially embedded in the electrode body. Similar connectors may be embedded in outer electrode bodies. Separators may instead be made as in Fig. 5, and folded over the end of the inner electrode body to envelop its sides. The two pieces 54 may be separate or integral. A maltese cross shape may be used instead. Nylon fabric may be used, with aqueous potassium hydroxide. Cell systems suggested are nickel oxide/zinc; silver oxide/zinc; silver oxide/cadmium; nickel/oxide iron; and nickel oxide/cadmium.
Patent GB-1414034-A (GB)
Title: Apparatus comprising a carriage movable by a hydraulic linear  mtoro
IPC: B23Q5/26
Filed: 1973-12-12
Abstract: 1414034 Hydraulic reciprocating motors WERKZEUGMASCHINENFABRIK OERLIKONBUHRLE AG 12 Dec 1973 [15 Dec 1972] 57463/73 Heading F1A An hydraulic linear motor for moving a carriage 13 along a guide bed 10 comprises pairs of opposed cylindrical pistons 23 with rollers 24 engaging cam tracks 21, 22 fixed to the guide bed. The carriage is supported on rails 11, 12 of the guide bed by hydrostatic bearings 14. The pistons have hydrostatically relieved side walls, Fig. 4, 5 and 7 (not shown), recesses in the side walls being supplied with working liquid from the cylinders. A rotary distributer 30 is driven by a rack 39 connected to the carriage, and controls the connections of the cylinders to supply and return lines 33, 35 connected to a supply pump 61 and reservoir 41 via a servovalve 40 controlled by a D.C. motor 46 acting via a servo-control 49 and an amplifier 60.
Patent GB-1349440-A (GB)
Title: Dynamic balancing apparatus
IPC: G01M1/20
Filed: 1972-12-13
Abstract: 1349440 Measuring dynamic unbalance NATIONAL FORGE CO 13 Dec 1972 [12 Jan 1972] 57537/72 Headings G1N and G1X Apparatus for measuring the magnitude and location of the dynamic unbalance of a rotatable workpiece 10 comprises a frame 14 for supporting the workpiece 10 such that it is rotatable about a horizontal axis, means for exerting upon the frame 14 a horizontal force transverse to the rotational axis and just sufficient to suppress horizontal vibratory movement of the frame caused by unbalance of the rotating workpiece and means for measuring such force. As shown, the frame 14 which is provided with rollers 12 for supporting the workpiece 10 is suspended by cables 16 from an outer frame 18 and either end of the frame 14 is locked to the outer frame 18 by longitudinally movable pin 38 arranged in a fixed support 40 while horizontal movement of the other end (free end) of the frame 14 can be detected by relatively movable electrodes 42, 46 (or 43, 47). In use, the workpiece 10 is connected by a flexible coupling 24 and a pulleybelt arrangement 26, 30, 32 to a drive motor 34. With one end of the frame 14 locked to prevent horizontal movement thereof, the other end of the frame 14 vibrates horizontally due to any unbalance of the rotating workpiece and the electrodes 42, 46 (or 43, 47) associated with that end are adjusted so as to make contact only at the extreme of the oscillatory movement. The electrodes are in circuit with a lamp 36 which is arranged to rotate in synchronism with rotation of the workpiece. When the electrodes make contact the lamp 36 lights up to provide an indication of the rotary position of unbalance of the workpiece. Solenoids 48 or other means are provided and these can be arranged to act on a bar 56 attached to the frame 14 to suppress horizontal transverse movement of the frame 14. The solenoids are so arranged in the electric circuit associated with the lamp 36 that the magnitude of current required in the solenoids to just suppress the horizontal movement is indicative of the magnitude of unbalance of  the workpiece in the vertical plane of the solenoids.
Patent GB-1247356-A (GB)
Title: Improvements in and relating to metallic composite materials
IPC: C22C1/04
Filed: 1968-12-05
Abstract: 1,247,356. Sintered Ni-Al composites. CABOT CORP. Dec. 5, 1968 [Dec. 6, 1967], No. 57813/68. Headings C7A and C7D. A sintered composite material consists of 2 to 20% A1 with the balance being Ni and has a micro-structure in which a predominant amount is in the form of a discontinuous, fibre-like, interlocked polycrystalline structure containing a solid solution of Al in Ni, and Ni a Al of which a part is present as a dispersed precipitate. The composite may be modified by the inclusion of Al 2 O 3  with a combined oxygen content of 0À1 to 3% and/or one or more of Cr up to 20%, Fe up to 25%, La up to 3%, Mo up to 15%, Nb up to 5%, Re up to 5%, Si up to 1À5%, Sn up to 6%, Ta up to 10%, Ti up to 10%, W up to 15%, Y up to 3%, Zn up to 6% and Zr up to 4%, replacing a minor part of the Ni. T be composites are made by blending the appropriate powders together; compacting and deforming the mixture to give elongated metal particles; heating the compact (e. g. to 600 to 1000‹C. ) to initiate a self-sustaining exothermic reaction and produce an interlocked polycrystalline fibre-like material; and then hotworking the composite (e. g. by rolling) at 900 to 1350‹C. to give the final required microstructure.
Patent GB-1370908-A (GB)
Title: Optical position-sensing apparatus
IPC: B23Q35/128
Filed: 1971-12-21
Abstract: 1370908 Photo-electric line followers MITSUBISHI DENKI KK 21 Dec 1971 [26 Dec 1970(2) 13 Oct 1971] 59357/71 Heading G1A The invention relates to a line follower and position measuring arrangements in which a repetitive transverse scan of a parallel light beam across the line or part of an object is carried out and deviations of the line or parts from the centre of the scan are sensed and used to move the instrument by means of a servomotor, back to a position where the scan is centred. A typical application is in follow-up control of a welding machine. In the follower arrangement of Fig. 1 parallel light from e.g. a gas laser 1 or a point source plus lens is repetitively deflected by device 2 (e.g. an oscillated mirror), under control of exciter 3, so that after reflection from mirrors 4, 5 it repetitively scans across the gap 6g between two plates 6 (which e.g. are to be welded together). Either the plates or the table 9 is moved continuously in the z-direction (i.e. normal plane of the paper). Reflected light is focused by lens 7 on to a detector 8. When the area scanned by the light beam is correctly centred with respect to the gap, the latter is crossed twice per cycle by the beam and a signal having a frequency 2fo is produced. When the scanned area is so displaced that it does not reach the other edge of the gap, a signal of frequency fo is produced, of a phase depending on the direction of the y displacement. Positions in between these extremes and a centred position result in signals comprising fo and 2fo. A phase detector 10 is therefore used to detect the phase relationship of the signal with respect to the scanning generator output and used to drive servomotor 12 to move the table 9 to recentre the scan. In this way the table follows any lateral deviation of the gap.  In Fig. 3 (not shown) a similar optical system is used to follow a line on an object. Fig. 5 (not shown) relates to a test object comprising two abutting plates angled with respect to one another. Parallel light may be directed at the join between the plates from a direction in the xy plane or angled with respect to it, in which case a V-shaped image is viewed by the detector (via a slit carrying plate). Similar waveforms as in the Fig. 1 embodiment are obtained. In a similar arrangement, Fig. 13 (not shown), the slit parallel with the xy plane is substituted by an optical wedge having a varying transmissivity in the z direction. The position measuring arrangement of Fig. 10 (not shown) comprises an optical system similar to that of Fig. 5 (not shown), but deviations of an unmarked object along the y axis from a datum position are sensed and the table moved accordingly in the y direction. It is also possible to measure angular displacements of the object using such a system Fig. 11 (not shown).
Patent GB-1299378-A (GB)
Title: Granules for the application of agricultural chemicals
Inventor: TAYLOR GEOFFREY GORDON
IPC: A01N25/26
Filed: 1969-12-05
Abstract: 1299378 Pesticides in granular form FRUITGROWERS CHEMICAL CO 5 Dec 1969 59532/69 Heading A5E [Also in Divisions B2 and C1] Agricultural chemicals in a liquid phase may be absorbed into a granular composition comprising a solid core into which a finely divided absorbent powder is handed by means of a water soluble adhesive. 'Agricultural' chemicals disclosed are parathion, funsulphethion and fenitrothion. The solid cores may be solid fungicides, insecticides or fertilizers, nut shells or solid minerals such as sand, calcite or dolomite. The fine powders (passing 150 mesh BSS) may be absorbent clays, modified diatomaceous materials or finely ground organic substances. The adhesives may be carboxymethyl-cellulose, alginates, molasses, sulphitelye or gum arabic.
Patent GB-2014635-A (GB)
Title: Lattice to be Embedded in a Paving Composition as an Anti- Crack Barrier
IPC: E01C11/08
Filed: 1978-06-22
Abstract: A lattice 3 to be embedded in a settable paving composition as an anti-crack barrier has spaced-apart bodies 4 connected by bars 5. Each body 4 is a closed wall of sheet metal or plastics forming a tubular shape having a plurality of radiating arms. Each arm is composed by spaced apart portions of said closed wall. <IMAGE>
Patent GB-2026678-A (GB)
Title: Burner
IPC: F23D14/22
Filed: 1978-07-26
Abstract: A burner for a metallurgical furnace comprises a refractory-lined combustion chamber 77 Figures 2 and 3, gaseous fuel supply ports 98, a peep sight 106 and an ultraviolet detector 108, a pilot burner assembly 112, and an air/oxygen supply tee 80, which supplies comburant to the combustion chamber via an annulus formed by an axially-adjustable tapered disc 94. The burner may be arranged to burn gaseous or liquid fuel Figure 4 (not shown). <IMAGE>
Patent GB-2006222-A (GB)
Title: A curable vinyl polymer and process for the production of the same
IPC: C08F8/42
Filed: 1978-08-24
Abstract: Moisture-curable vinyl polymers having a molecular weight of 300 to 30,000 are produced by reacting a hydrosilane compound with a polymer having a carbon-carbon double bond and a molecular weight of 200 to 30,000 at a temperature between 50 DEG  to 150 DEG C. preferably in the presence of a Group VIII transition metal catalyst. When the product contains chlorine atoms these may be converted to other hydrolysable groups. The starting polymer may be a copolymer of allyl methacrylate with one or more other monomers, and suitable hydrosilanes include methyl dichlorosilane and methyl diethoxysilane.
Patent GB-2004873-A (GB)
Title: 4-hydroxy-4,5-dihydro-6- phenyl-3(2H)pyridazinone and its tautomer
IPC: C07D237/04
Filed: 1978-09-19
Abstract: 3,4-Dihydroxy-6-phenyl-4,5- dihydropyridazine and its tautomer i.e. 4-hydroxy-4,5-dihydro-6-phenyl- 3(2H)pyridazinone which is obtained by reacting hydrazine hydrate with 2-hydroxy- 3-benzoylpropionic acid and heating the resultant product to form a pyridazine ring. It is useful for preparing 6-phenyl-3(2H) pyridazinone by dehydration by heating in an aqueous or hydroalcoholic medium in the presence of a strong acid.
Patent GB-2035664-A (GB)
Title: Music teaching apparatus
IPC: G09B15/02
Filed: 1978-11-10
Abstract: An electronic aid for teaching musical notation. A display has at least one set of parallel lines (1, 2) representing musical staves and light sources (5, 6) disposed with respect to these lines to represent musical notes of different pitch. In the case where two sets of parallel lines (1, 2) are provided, the top set may be provided with a treble clef (3) and the bottom set may be provided with a bass clef (4) and further light sources 9 may be provided within sharps (7) and flats (8) for indicating the key. A keyboard has a plurality of switches each labelled with a letter denoting the pitch of a different note. In use actuation of one of these switches will cause at least one light source representing the appropriate note on the display to illuminate. Preferably, a random note selector illuminates one of the light sources on the display at random and the student is then given a time limit to actuate the appropriate switch corresponding to the note illuminated. Such a teaching aid provides a particularly efficient means of teaching musical notation. <IMAGE>
Patent GB-2016334-A (GB)
Title: Milling machine with copying facility
IPC: B23Q35/20
Filed: 1979-01-15
Abstract: A milling machine with a copying facility has two tables 19, 16 driven by a motor 18 and connected for rotary movement by a chain 20, the first 19 carrying a drawing, and the second 16 a workpiece 17. A photoelectric head 39 follows a line on the drawing, and its radial movement controls the radial movement of a cutter 11, the connection between them being in the form of two coaxial leadscrews 30, 31, driven by a motor 25 and having different pitches so that the workpiece 17 is made to a predetermined reduction in scale compared to the drawing. <IMAGE>
Patent GB-2014430-A (GB)
Title: Method and apparatus for boning half pig's head
IPC: A22C17/00
Filed: 1979-02-16
Abstract: The invention concerns a method and apparatus for severing the jowl muscles of a half pig's head, in order to facilitate subsequent boning of the half head to provide bone and pig's head meat as the end product. For this purpose, the half pig's head (19) is placed on a moving conveyor (11) comprising a series of stainless steel plates (12), the half head being held securely in a predetermined position by a locating and supporting means (13 to 18) welded to the plate (12). The half head so held is presented by the conveyor to a fixed wedge member (20) pointing in the opposite direction to that of the conveyor movement, the wedge member acting to force the jaws of the half head progressively further apart to sever the jowl muscles. Preferably, the outer skin or rind of the half head is removed before the latter is placed on the conveyor. This is achieved manually by an operative using a knife, the half head during this operation being placed on a table (26) and held in position by a wire loop (28) which holds the snout of the half head tightly against a post (27). <IMAGE>
Patent GB-2017214-A (GB)
Title: Centrifugal Pumps
IPC: F04D29/22
Filed: 1979-03-22
Abstract: A single-sided pump wheel 16 is common to and axially displaceable between two working positions in two pump casings 12a, 12b built together into one unit 12. One 12a of said pump casings has at least one individual discharge branch 26. The other pump casing 12b has at least one individual suction branch 27, and a branch 28, which constitutes a suction branch when said pump wheel 16 is in one of its working positions, in which said pump wheel 16 cooperates with both pump casings 12a, 12b, and constitutes a pressure branch when the pump wheel is in its other working position, in which it cooperates only with said other pump casing 12b. <IMAGE>
Patent GB-2048108-A (GB)
Title: Contact plate for heat-mass exchange apparatus
IPC: B01D3/22
Filed: 1979-05-03
Abstract: A contact plate for heat-mass exchange apparatus which may be used in various branches of industry and in the production of polymeric materials, has a base 1 provided with at least one perforation 8 widening in one direction, its edge at the wide end contacting the apparatus walls 6. With a plate having a plurality of perforations 8, 9 the edges of the perforations 8 disposed along the periphery of the base contact the apparatus walls and the edges of adjacent perforations 9 contact each other, thus reducing the development of stagnant zones on the plate, decreasing its hydraulic resistance and improving the efficiency of heat-mass exchange. <IMAGE>
Patent GB-2048728-A (GB)
Title: Centrifuge With Abrasion- resistant Conveyor
IPC: B04B1/20
Filed: 1979-05-15
Abstract: In a conveyor centrifuge abrasion resistant edge members (28J) are mounted on the flights (22) of the conveyor using an intermediate shock absorbent backing tile (26J) secured to the conveyor flight e.g. by welding (as at 30) and to which the abrasion resistant members are secured by a mechanical connection, e.g. a rivet (94) as shown. <IMAGE>
Patent GB-2027124-A (GB)
Title: I.C. engine idle speed control method and valve therefor
IPC: F02M23/08
Filed: 1979-07-03
Abstract: An engine having a carburetter or fuel injection system with a fuel-air ratio controller responsive to an exhaust oxygen sensor has a valve 66 which is opened to admit air to the intake manifold in response to the decrease in manifold vacuum in the diaphragm chamber 44 resulting from a decrease in engine idling speed. The ratio controller responds to the sensed extra air to provide extra fuel and thus restore the idling speed. <IMAGE>
Patent GB-2029621-A (GB)
Title: Display board for mounting on a vehicle
IPC: G09F21/04
Filed: 1979-08-22
Abstract: A board which can carry an advertisement or other information is adapted to be mounted on the towing hitch of a vehicle when the vehicle is not towing a trailer. The board can have a trailer coupling fixed to it for removable mounting on a ball bracket. <IMAGE>
Patent GB-2049254-A (GB)
Title: Electric alarm bells
IPC: G10K1/064
Filed: 1980-03-19
Abstract: An electric alarm bell has a backing plate (10) with open- topped pockets (18) into which lugs (26) on an internal channel housing (12) connected to a gong (11) engage to secure the channel housing (12) to the backing plate (10). The internal channel housing (12) carries the bell striker mechanism (13) and a three-contact (25) electrical connection means which engages with a three-contact (17) electrical connection means on the backing plate (10). <IMAGE>
Patent GB-2048634-A (GB)
Title: Soil compacting roller
IPC: A01B29/04
Filed: 1980-04-11
Abstract: A soil compacting roller (16) comprises a cylinder (12) rotatably mounted between the lower ends of substantially vertical limbs (11) of two supports (9), said cylinder (12) being surrounded by a plurality of larger diameter rings (15) which extend in relatively spaced side-by-side relationship along the length of the cylinder (12) which they surround. The supports (9) are interconnected by a tubular or rod formation supporting member (13) that is spaced from the cylinder (12) and the rings (15) are movable entirely independently of one another. Guide members (17) extend between the successively neighbouring rings (15) to keep them in their appointed positions axially of the cylinder (12) and to assist in dislodging adhering mud from the interiors and exteriors of the rings (15) and from the exterior of the cylinder (12) against which said guide members (17) bear. The guide members (17) are in the form of pivotally mounted strips and other embodiments are described in which the guide members are in the form of spring steel rods, annular flanges carried at regular intervals along the cylinder (12), pairs of lugs carried by the supporting member (13) or rotatably mounted circumferentially toothed discs which intrude between the successive rings (15). <IMAGE>