baber/WOPTO huggingface dataset:
Patent GB-1336627-A (GB)
Title: Assembly of panels and the like by tongue-and-groove joints
IPC: E04B1/61
Filed: 1971-12-14
Abstract: 1336627 Connecting panel edges; panels L PIRALLI 14 Dec 1971 [17 Dec 1970 1 Dec 1971] 57992/71 Headings E1B and E1W Panels, e.g. for partitions, have their edges interconnected by strips, e.g. 2 with pairs of resilient flanges e.g. 1a, 1b one flange, 1a, of each pair having a protuberance 6 which engages in a recess in a groove formed in an edge framing member 4 of the panel. The panel may be of plaster or reinforced plaster, and the strips may each have a flange (14), Fig. 2 (not shown) extending from one end of the web 2 of the strip and co-planar therewith, the flange having one or more triangular holes therein to receive angle-section panel locking wedges. Alternatively, as shown a jointing strip 9 may be inserted between the panel edges.
Patent GB-1370108-A (GB)
Title: Semiconductor circuit arrangements
IPC: H03G1/00
Filed: 1971-12-15
Abstract: 1370108 Gain control PLESSEY CO Ltd 15 Dec 1971 58172/71 Headings H4R and H3T A transistor amplifier circuit includes an input amplifier and an attenuator circuit in which the attenuator circuit comprises a pair of differentially connected transistors having a common emitter circuit to which an output current from the input amplifier is applied in such a manner that it is divided between said pair of transistors in dependence upon the differential voltage between their bases, the circuit being chargeterized in that semi-conductor junction means are provided in association with each of the base electrodes of the differentially connected transistors for temperature stabilizing purposes. The semi-conductor junction means may be diodes or pairs of transistors connected as compound diodes. Such a circuit forms blocks 20 and 30 of an amplifier, Fig. 1, the block 40 forming an output stage connected to the collector of transistor TR5 which is one of the two differentially connected transistors TR4, TR5 forming part of the attenuator. The output amplifier 40 may be of any known form. Compound connected transistor pairs TR6, TR7 and TR8, TR9 form the temperature stability circuits and transistors TR1, TR2 comprise the input amplifier. Transistor TR10 provides a reference current source from which the biasing current for transistors TR6, TR8 is derived. In one application of the circuit of Fig. 2 the amplifier takes the form of a telephone channel amplifier, the point 5 is connected to a reference potential and remote control of the circuit gain may be acieved over a line connected to point 6. A potentiometer P v  may be situated at a central control station for this purpose. The amplifier also incorporates D.C. feedback from output line 1 to a transistor TR3 connected between the input amplifier 20 and the attenuator 30. The whole amplifier circuit of Fig. 1 may be integrated on a silicon chip.
Patent GB-1331869-A (GB)
Title: Up-and-over door arrangements with electro-mechanical operating means
IPC: E05F15/10
Filed: 1971-12-20
Abstract: 1331869 Up and over door assembly F BANZET 20 Dec 1971 [24 Dec 1970] 58959/71 Heading E2M An electro-mechanically operated door of the 'up and over' type comprises two panels 1 and 2, the upper panel 2 rests on four stops on the door frame 5 and to open the door the lower panel 1 is pulled by straps 8, (8') connected to each side of its lower edge, along guide rails 4 behind the upper panel 2; the upper panel 2 being entrained by the lower 1 and drawn with it above the door frame. In the position shown dotted at b means 10, 12 on panel 1 engage means 11, 13 respectively on panel 2 to couple the panels together and they finally reach the fully open position shown dotted at c against stop 14 where they are held by an electromagnetic or other locking means. A winding tube 7 driven by a motor through reduction gearing draws in the straps 8, (8') and is reversed to close the door; the operating means being controlled by a tumbler change-over switch. A clutch is incorporated so that the tube may be driven manually via a chain wheel; manual operation can also be effected by a torsion spring incorporated in the tube. Two pairs of rollers 3 on the lower panel 1 engage guide coils 4 mounted to each side of the door frame but rollers on spindles may be employed, sliding along a profiled rail, rollway, or slideway.
Patent GB-1408956-A (GB)
Title: Permanently anti-static polyamide compositions
IPC: C08G65/08
Filed: 1972-12-21
Abstract: 1408956 Antistatic polyamide composition BAYER AG 21 Dec 1972 [23 Dec 1971] 59119/72 Heading C3R Aliphatic linear polyamides are rendered permanently antistatic by incorporating 0À5 to 40 wt. per cent of a polyalkylene oxide consisting predominantly of ethylene oxide units and optionally up to 25 mol per cent of other units wherein R 1  and R 2  are hydrocarbon radicals or one may be H cross-linked with a minor proportion of a di- or tri-epoxide sufficient to reduce the water-solubility of the polymer but insufficient to render it incompatible with the polyamide. Specified polyamide are those derived from HOOC(CH 2 ) 4-10 COOH and an aliphatic or cycloaliphatic diamine and from caprolactam and aminocaproic acid. The optional units in the polyalkylene oxide may be derived from 1,2- propylene-, 1,2- or 2,3-butylene-, or 2-phenyl- 1,2-ethylene-oxides. Specified di- and triepoxides are those of the formulae and Conventional stabilizers, e.g. hindered phenols, may also be incorporated in the polyamide.
Patent GB-595724-A (GB)
Abstract: 595,724. Wave - guides ; directive wireless systems. WESTERN ELECTRIC CO., Inc. Jan. 9, 1945, No. 791. Convention date, Nov. 6, 1943. [Class 40 (v)] A directive antenna mounted for scanning in a given plane comprises a concave reflector and a primary antenna member therefor spaced apart from the scanning plane and from the focus of the reflector. In the Figure, a parabolic reflector 1 having a focus 2 is arranged for scanning in a horizontal plane 6. The reflector is fed by an aperture 15 in a wave-guide 7 arranged below the focus 2 and the plane 6 so as not to interfere with the reflected beam. The reflector is rigidly connected to the waveguide by struts 13, the upper ones at least being of dielectric material. The upper end of the wave-guide is turned through an acute angle, preferably about 75 degrees, as this is stated to reduce the tendency to split the polarization of the transmitted waves. The aperture 15 is closed by a dielectric diaphragm 16. The reflector 1 and guide 7 are mounted for rotation about a vertical axis by gearing 27, 31, 34 actuated by a hand wheel 36 or a motor (not shown). The lower end of guide 7 is coupled by quarter-wave flanges 10 to a guide 8 loading to a transceiver 12.
Patent GB-1204208-A (GB)
Title: Improvements in and relating to the production of strip material
IPC: B29C63/02
Filed: 1968-12-16
Abstract: 1,204,208. Laminating apparatus; seaming non-metallic sheet material. TETRA PAK A.B. 16 Dec., 1968 [22 Dec., 1967], No. 59695/68. Headings B4B, B5K and B5N. A carrier material, e.g. of paper 2 is fed from roller 1 through cutter 3 and the strips are separated on a spreader roll 5 into individual strips 4 which are covered by a thermoplastic film 9 from an extruder 16 and/or by metal foil or plastic film 7 from roll 6. The cover layer extends over the strips 4, the spaces therebetween and preferably beyond the edges of the outer strips. The composite is passed between laminating rolls 8, at least one of which may be cooled, and thence to cutter 11 which cuts the laminate in the spaces between the strips 4. The laminated strips are taken up on roll 12. A plastic cover may be applied to both sides of the separated tapes 4 and the cutter 11 should preferably be heated so that the covering layers are sealed and form a sheath enclosing the carrier layer. Overlap joints may be formed between strips of the composite material by heat sealing the extended portion 23 of the cover layer of one strip to the cover layer of the other strip.
Patent GB-1388880-A (GB)
Title: 3-imidazole derivatives of rifamycin sv
IPC: C07D233/20
Filed: 1972-12-28
Abstract: 1388880 3-Imidazole derivatives of rifamycin SV GRUPPO LEPETIT SpA 28 Dec 1972 [19 Jan 1972] 59832/72 Heading C2C Novel 3-imidazole derivatives of rifamycin SV having the general Formula (I) and the corresponding 25-desacetyl and 16, 17, 18, 19, 28, 29-hexahydro derivatives, wherein R is hydrogen, C 1-6  alkyl, phenyl or phenyl- C 1-6  alkyl; and R 1  and R 2  together represent a carbocyclic residue forming with the double bond of the adjacent imidazol moiety a benzene ring; a mono- or poly-substituted benzene ring wherein the substituents are selected from C 1-6  alkyl, C 1-6  alkoxy, halo, carbalkoxy, carboxy, sulpho, sulphamoyl, nitro, trifluoromethyl, carbamyl, mono- and di-C 1-6  alkylcarbamyl and methylenedioxy; or a substituted or unsubstituted polynuclear aromatic radical composed of 2 or 3 fused rings each of 5-6 carbon atoms, are prepared by reacting 3-formylrifamycin SV or a 25-desacetyl or 16, 17, 18, 19, 28, 29-hexahydro derivative thereof, with an orthodiamine of formula wherein R, R 1  and R 2  are as defined above, and then oxidizing the product with air, a cupric salt, mercuric oxide, manganese dioxide, isoamyl nitrite, potassium ferricyanide or lead tetraacetate, and if the rifamycin moiety in the obtained compound is in the quinone form, reducing it to the corresponding hydroquinone with aqueous ascorbic acid. The compounds (I) have antibacterial, antiviral and anti-cancer activity and may be admixed with a pharmaceutical carrier to provide pharmaceutical compositions having such activity.
Patent GB-1207547-A (GB)
Title: Mineral-mining machine with mining tool on a pivoted arm
IPC: E21C27/22
Filed: 1968-12-17
Abstract: 1,207,547. Mineral-mining machines. EICKHOFF MASCHINENFABRIK U EISEINGIESSEREI G.m.b.H. 17 Dec., 1968 [23 Dec., 1967], No. 59902/68. Heading E1F. To maintain a cutter-carrying arm 3 at a set angle to a reference plane when it is reciprocated in a turret 6 rotatably mounted on the self propelled chassis 1 of a mining machine the ram(s) 7 for reciprocating the arm relative to the turret and the ram(s) 10 for swinging the arm about an axis at right angles to the axis of rotation of the turret are so constructed, arranged or controlled that actuation of one ram(s) 7, 10 will automatically cause the necessary corrective actuation of the other ram(s) 10, 7.
Patent GB-1390623-A (GB)
Title: Lighting unit and reflector therefor
IPC: F21V7/10
Filed: 1971-12-28
Abstract: 1390623 Lighting fittings NICOL & ANDREW Ltd 27 Dec 1972 [28 Dec 1971] 60232/71 Heading F4R A lighting fitting comprises a box-like housing open at one face and containing a reflector having inner reflective surfaces 8, outer reflective surfaces 9 and side reflective surfaces 10 which interconnect adjacent inner and outer surfaces, the reflective surfaces defining a plurality of spaced recesses 11 each of which contains mounting means for a light source. The reflector is made of flexible aluminium and can be sprung into position within the housing where it rests on a peripheral flange 6 and closes the open face. The light sources are preferably fluorescent tubes, the ends of which are concealed by corrugated aluminium closure plates 14, but may alternatively be incandescent filament lamps, in which case only a single closure plate may be required.
Patent GB-646578-A (GB)
Abstract: 646,578. Ticket-issuing machines. T.I.M. (TICKET ISSUE MACHINES), Ltd. Sept. 23, 1947, No. 25851. [Class 106 (iii)] A portable ticket printing and issuing machine comprises a manually operable device located on the exterior of the machine and adapted to be clutched with, and adjust, a printing die on a rotary printing element. To adjust the position of a die 20, Fig. 1, a knob 5 is pushed inwards against a spring 12 until clutch elements 15, 16 are engaged. This axial movement disengages a perforated disc 10 (see also Fig. 3) from a locating pin 11, and the knob 5 can then be rotated to select the appropriate type 20 as indicated by a drum 8 through a window 9. The printing die 20 is held in the selected position by a pin 22 engaging, under pressure of a spring 19, recesses 23 in a fixed disc 24. The pin 22 is carried by a disc 28, Fig. 5, rotating with the clutch element 16 and formed with one or more flat surfaces 29 for co-operation with a spring-urged arm 30. After the die has been set, rotation of the printing element 3 to print a ticket causes the arm 30 to sweep past a counter 34 which will be actuated if the arm is not engaging a flat surface 29, but not otherwise. To prevent operation of the machine whilst the knob 5 and disc 10 are pushed in, an element 25, Fig. 3, on the main shaft is provided with a cut-away portion 27 which engages the disc 10 when the latter is pushed in but is free to rotate when the disc 10 is in its inoperative position. Specifications 368,802 and 477,685 are referred to.
Patent GB-500722-A (GB)
Title: Method for treating ores by electric high frequency waves
IPC: C22B4/00
Filed: 1937-06-12
Abstract: 500,722. Estracting metals; alloys; electric heating. KIKUCHI, H. June 12, 1937, No. 735/36. A Specification was laid open to inspection under Sect. 91 of the Acts, July 13, 1936.] Drawings to Specification. [Class 82 (i)] [Also in Group XI] Ores aro reduced by subjecting them to the action of high-frequency currents having a frequency above 100,000 cycles per second in an electrode furnace, the applied voltage being above 1000 volts, the ore, mixed with small quantities of reducing agents, with or without fluxes, being in the form of small granules forming an electrically discontinuous conductive mixture. If the ores arc not crystalline they are preferably converted into a crystalline form or crystalline materials are added to them.' To provide a good discontinuous conductor, conductive materials such as graphite, charcoal or metals or non- conductors such as coal, lignite, oil shale or wood chips may be added : piozo-electric substances such as quartz may also be used. As reducing agents, graphite, coke, and charcoal may be employed for iron ores, iron for galena, and graphite, in the presence of hydrogen, for molybdenum oxide. For the reduction of iron, nickel or cobalt, an oxidizing atmosphere is used; for metals of the fourth group, a neutral atmosphere ; and, for molybdenum and copper, a reducing atmosphere. Ores may be selectively reduced by the process. During reduction, the voltage or frequency or both may be reduced and the amperage increased, the voltage and frequency being restored to their original value at the end of the reaction. Specific examples are given of the reduction of haematite for the production of pure iron and of ferrosilicon containing 95À5 per cent of iron and 4À0 per cent of silicon ; of the reduction of tinstone containing tungsten, manganese, ironand silicon for the production of 99À9 per cent tin and ferromanganese-tungstenparticles which are then oxidized to ferro-tungsten ; of the reduction of garnierite to produce ferro-nickel containing 85 per c nt of iron and 13 per cent of nickel; of the reduction of cobalt ore for the production of ferro-cobalt containing 77 per cent of iron, 22 per cent of cobalt, 0À3 per cent of carbon. 0À02 per cent of phosphorus, 0À09 per cent of silicon and traces of arsenic and sulphur; and of the reduction of rhodochrosite to produce ferro-manganese containing 80 per cent of manganese, 19 per cent of iron and 0À5 per cent of carbon. The reduction of molybdenum oxide, cobalt oxide, antimony oxide, zinc oxide, cadmium oxide, titanium oxide, zirconium oxide and of minerals containing lead, tantalum, niobium, tungsten, chromium and aluminium is also referred to.
Patent GB-2023479-A (GB)
Title: Method of machining end faces
IPC: B23B27/12
Filed: 1978-06-21
Abstract: An end face of a workpiece 1 is machined by a rotary tool (2), wherein the workpiece is rotated about its axis O1 and causes the tool to rotate about its axis. O2 by contact therewith and a straight feed motion is imparted to the tool offset from a diametrical line of the workpiece so that the tool moves at an angle of between 20 to 75 DEG  to the radius of the workpiece. The plane of the cutting edge of the tool is at an angle (???) of 5 to 45 DEG  to the radial plane of the workpiece. <IMAGE>
Patent GB-2002485-A (GB)
Title: Pipes
IPC: F16L9/12
Filed: 1978-08-07
Abstract: A pipe comprises a layer of thermosetting resin 1 surrounding an inner hose 2 and encircled by an outer hose 3. A braided fabric reinforcement 7 may be disposed between the resin layer 1 and the outer hose 3. Before the resin is cured the pipe is placed in position and shaped. The resin is cured by activating a catalyst and the pipe becomes rigid. 
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Patent GB-2027324-A (GB)
Title: A portable power tool
IPC: A01D34/90
Filed: 1978-08-14
Abstract: A portable power cutting tool for cutting plants such as sugar canes, which comprises a rotary cutting blade 2 mounted on one end of an elongate tubular element 1 and driven by a lightweight engine 3 connected to the other end of the tubular element, wherein a handle 9 is mounted on the tubular element, and a pair of arm grips 14, 18 are provided for restricting the operator's arm holding the handle so as to facilitate easy manipulation of the tool with a single arm. <IMAGE>
Patent GB-2011007-A (GB)
Title: A Method of Securing an Article to a Tubular Member
IPC: F16B12/30
Filed: 1978-09-11
Abstract: A method of securing an article 4 to a tubular member 2 by fixing an element 6 having a threaded bore in an end portion of a bore of a tubular member, and inserting a threaded shank 10 of a threaded member 12 through an aperture provided in the article 4 and securing the said threaded shank in the threaded element. <IMAGE>
Patent GB-2004386-A (GB)
Title: Methods of copying photographs and apparatus therefor
IPC: G03C5/00
Filed: 1978-09-19
Abstract: Methods of making photographs, particularly designed for copying photographically other photographs, comprise exposing the material to be photographed to such a short total time interval, often less than 100 microseconds, so as to enable the contrast of the photograph being copied to be reproduced. Apparatus particularly designed for carrying out this short exposure is also described in Figures 3 and 5 which show an arrangement for controlling flash duration as a function of light used during exposure. Figure 13 shows an arrangement for controlling flash intensity as a function of the density of the original, which is photoelectrically measured before exposure. Figure 7 shows an arrangement for exposing film to non-image as well as to image light.
Patent GB-2008520-A (GB)
Title: Propellers shrouds
IPC: B63H5/14
Filed: 1978-11-27
Abstract: A propeller driven motor boat is provided in which the propeller (11) is mounted below the hull (10) and on a shaft (12) extending fore and aft with a substantially horizontal component. The hull (10) has a recess (13) in its bottom which recess extends fore and aft to the stern of the boat and, in section across the length of the boat the recess is semi-circular. The propeller (11) is arranged so that the upper half of the area swept by the propeller lies within the recess (13). A member (14) is attached to the boat and provides a surface (15) facing the recess (13) which surface together with the recess forms a circular bore open at both ends and surrounding the propeller (11). <IMAGE>
Patent GB-2011949-A (GB)
Title: A hard alloy containing molybdenum and tungsten
IPC: C22C29/00
Filed: 1978-12-22
Abstract: This invention relates to a hard alloy comprising a hard phase consisting of at least one compound having a crystal structure of simple hexagonal MC type (M: metal; C: carbon) selected from the group consisting of mixed carbides, carbonitrides and carboxynitrides of molybdenum and tungsten as a predominant component, and a binder phase consisting of at least one element selected from the group consisting of iron, cobalt, nickel and chromium. The binder phase includes a hard phase consisting of a compound of M2C type having a crystal structure of hexagonal type which is evenly dispersed through the binder phase.
Patent GB-2045981-A (GB)
Title: Alarm Clock
IPC: G04G11/00
Filed: 1979-03-06
Abstract: In an alarm clock the alarm is provided by an electric light (11) which is switched ON at a preset time by a control circuit responsive to the time of day as determined by a clock circuit (IC1) and its brightness is gradually increased over a period of minutes. The control circuit comprises a triac (12) in series with the light, a phase control circuit (IC2) for determining the conduction angle of the triac (12) and circuitry (S1, A1, A2, etc) which increases the conduction angle of the triac (12) over the period in which the brightness of the lamp is to increase. An audible alarm device may be set off as the light approaches its maximum brightness. <IMAGE>
Patent GB-2015849-A (GB)
Title: Improvements in or relating to audio teleconferencing
IPC: H04M3/56
Filed: 1979-03-07
Abstract: A control unit for controlling operation of a plurality of audio teleconference terminals comprises a plurality of inputs 110 which are connected each to a particular terminal. A speech detector 118 detects from which terminals speech signals are received and actuates switching means 111 to connect those terminals in open loop teleconference, i.e. each input 110 is connected to all outputs 115 except to that output which corresponds to the same terminal as input 110. The control unit may be hard wire logic or a microprocessor, and the teleconference connections may be private or public telephone connections. <IMAGE>
Patent GB-2018742-A (GB)
Title: Sintering beta alkaline alumina parts
IPC: C04B35/113
Filed: 1979-03-12
Abstract: Beta alkaline alumina parts are sintered in a sintering chamber, which is at least partially made of a refractory material which includes a mixture of three ingredients, namely beta alumina fire clay obtained by melting and crushing into grains with a grain size of about 0.5 mm, beta alumina cement or binding agent obtained from an alpha alumina and sodium carbonate mixture by reaction in the solid state and at a temperature of about 1200 DEG C, such a cement having a grain size of about 10 microns and lastly a sodium salt, the respective proportions by weight of these three ingredients being such that during sintering said chamber generates an atmosphere rich in sodium in the immediate vicinity of the parts. The proportions of the three ingredients are typically fire clay 75%, cement 20% and sodium salt 5%.
Patent GB-2017411-A (GB)
Title: A thermostat having magnetically- operable moving parts
IPC: H01H37/58
Filed: 1979-03-20
Abstract: In a thermostat comprising a permanent magnet 14 movable, in response to a temperature change sensed by a fixed magnetic sensor 10, and against the force of a spring 4, to actuate switch contacts 35, 36, the permanent magnet 14 comprises material having a maximum energy product of at least 50 kilojoules per cubic metre, an air gap exists between the permanent magnet 14 and the sensor 10 at all times, the spring force is adjustable when the air gap is at a minimum, and the maximum air gap is adjustable. <IMAGE>
Patent GB-2023412-A (GB)
Title: Rucksack
IPC: A45F4/02
Filed: 1979-05-17
Abstract: A rucksack has a rigid, self-supporting shell (1) provided with means, eg hooks (11), for attaching a harness, the shell being shaped and being of sufficient strength to serve as a portable seat. The shell is preferably constructed of two substantially identical parts (2,3) made, for example, from a reinforced plastics material or of metal. <IMAGE>