baber/WOPTO huggingface dataset:
Patent GB-1410184-A (GB)
Title: Method of controlling a calcining plant for fine-grained material  with a plurality of pre-heating devices connected in parallel  for the material to be treated
IPC: F27B15/00
Filed: 1972-10-02
Abstract: 1410184 Automatic control KLOCKNERHUMBOLDT-DEUTZ AG 2 Oct 1972 [1 Oct 1971] 45413/72 Heading G3R In a plant for the heat-treatment of granular material and including a furnace and two parallel pre-heating devices through which the furnace exhaust gases pass, the temperatures of the exhaust gases leaving the pre-heating devices are equalized by controlling the flow of exhaust gas and/or material in accordance with those temperatures. In the embodiment shown, cement meal is fed by metering services 6, 7 e.g. weighing conveyors to parallel pre-heaters 2, 3 supplied with hot exhaust gases from rotary kiln 1. The temperatures of the gas from the pre-heaters are measured by short time delay thermocouples 14, 15, any difference between these temperatures being used, by controller 19, to vary the speed of fans 10, 11 in the pre-heater outlet pipes 8, 9 and thus maintain the pre-heater gas output temperatures equal. To regulate these temperatures at a desired value, the output of controller 19 is modified by controller 21 according to a comparison between the average of the measured temperatures and a desired value, that is modified according to the error between the measured oxygen content of the furnace output gas, and a required value. If the speeds of the fans 10, 11 as measured e.g. by tachogenerators exceed a pre-set limit, the difference between the gas outlet temperatures is alternatively switched to controller 27 to vary the material feed from metering devices 6, 7. The pre-heater exhaust gases pass to an electrostatic dust removal apparatus 12 and milling drying plant 13.  In an alternative arrangement Fig.3 (not shown) a single fan is used with temperature control by a throttle valve in each pre-heater exhaust pipe.
Patent GB-1302220-A (GB)
IPC: G04C3/00
Filed: 1970-09-24
Abstract: 1302220 Electronic watches SUWA SEIKOSHA KK 24 Sept 1970 [25 Sept 1969] 45602/70 Heading G3T The description is substantially the same as that of Specification 1302219 but the claims are directed to a timepiece comprising an electric stepping motor the rotor 7 Fig.2 of which drives a seconds wheel 9 stepwise, the rotor shaft having an indexing member thereon, and means for adjusting the angular position of the indexing member i.e. cam 19, so as to adjust the rotor and hence the seconds hand to a predetermined position. When a control stem 13 is pulled outwardly it disengages a lever 12 portion 12B from an end 14B of a lever 14 thus allowing a spring 16 to rotate the lever 14 an end 14B engaging a cam lobe 19' of the three lobed indexing cam 19, which is thereby rotated together with the sixpole rotor 7 which carries the cam 19. Thereby the seconds hand is set to an angular position corresponding to an exact whole number of seconds on a seconds scale.
Patent GB-1211598-A (GB)
Title: Improvements in and relating to photographic arrangements
IPC: G03B15/08
Filed: 1968-09-26
Abstract: 1,211,598. Optical systems for cameras. RICOH K.K. Sept.26, 1968 [Oct.11, 1967], No.45663/68. Heading G2A. An optical aperture 15 is defined by the aperture-area common to two crossed slots 23a, 24a, and its position can be varied in rectangular coordinate fashion by moving one slot relative to the other. The slots are formed in plates 23 and 24 respectively. As shown in Fig.4A, plate 23 is moved horizontally by means of an extension ending in a roller 43. The roller follows the contour of a cam 33 rotating about a shaft 63. Similarly plate 24 is moved vertically by a roller 44 following a cam 54 rotating about a shaft 64. Fig.3A shows an example in which each slot can take up five different positions. Firstly, slot 24a is kept stationary while slot 23a, initially crossing slot 24a to give an aperture at position "1", is moved two steps to give the next aperture at position "2", two more steps for position "3", and then back again for positions "4" and "5". Then slot 24a is moved down two steps, and the sequence repeated, and so on. Eventually position "25" is reached, which consequently comes adjacent to position "1", for convenient return. To provide these movements, each cam has five curved working surfaces, at differing distances from the centre shaft. The device is used in the optical arrangement of Fig.1, in which a lens 1 produces an image of an object at A or B, which in turn is photographed on a photo-sensitive sheet 4 behind a lens 2 comprising a plurality of micro-lens elements. Thus the image A is split into a series of discrete microimages, each formed on one elemental area of sheet 4. The aperture plates are positioned at 3. Thus the number of separate pictures which can be produced on the sheet 4 is determined by the number of aperture positions possible (e.g. 25 in the example of Fig. 3A).
Patent GB-1403239-A (GB)
Title: Semiconductor devices
IPC: H01L29/93
Filed: 1972-10-04
Abstract: 1403239 Semi-conductor devices PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 4 Oct 1972 [7 Oct 1971] 45747/72 Heading H1K A semi-conductor body 50 is provided on its opposed major faces with metal layers 51, 52 which project beyond the lateral edges of the faces and at least one of which has a beam lead extension 51b, 52b. If only one of the layers 51 or 52 has an extension then the semiconductor surface abutting that layer is smaller in area than the opposite surface. Preferably this structure is achieved by using the upper (as shown) metallization 51 as a mask against etching, the lateral overlap of the layer 51 being caused by under-etching. The beam lead extension 51b may be freed by under-etching either of the semi-conductor material itself or of a readily-etchable layer between the semiconductor material and the layer 51. The invention is applicable to devices such as IMPATT, Gunn, varactor or PIN diodes, preferred semi-conductor and electrode materials being disclosed for particular embodiments. Two beam leads may extend in opposite directions from the same surface of the body 50. The beam leads 51b are preferably sufficiently flexible to be deflected vertically by means of gas pressure, and to be bent out of the plane of the upper surface of the body 50 so as to facilitate thermocompressive bonding to the metallized upper surface of a quartz block or ring mounted alongside the body 50 on a common heat sink.
Patent GB-1207569-A (GB)
Title: Improvements in or relating to fuel handling arrangements for nuclear reactors
Inventor: HOPKINS SHIRLEY RUSSELL
IPC: G21C19/105
Filed: 1968-09-26
Abstract: 1,207,569. Fuelling reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 15 Sept., 1969 [26 Sept., 1968], No. 45861/68. Heading G6C.  In a sodium-cooled reactor spent fuel elements are lifted from the core, moved transversely and then lowered into holes 3 in a rotatable facility 1 where they are temporarily stored. The storage facility 1 is immersed in the sodium and each hole 3 contains a bucket (not shown) for receiving a fuel element. Eventually, the buckets are lifted, one at a time, into a transport flask (not shown) by a grab 4 suspended from a cable 5. The grab 4 is guided by a tube 2 but this tube must terminate short of the facility 1 to permit the transverse movement of the fuel elements into positions above the holes 3. However, during the operation for lifting the buckets from the holes the tube 2 is extended, as shown, by a slidable tube 12 supported by a shoulder 11 on projections 10 on the grab claws 6. As the grab 4 is lowered the tube 12 also moves down until it is supported by the facility 1 whereupon the grab continues to move down to engage a bucket. During lifting of the bucket the tube 12 is also raised by the engagement of the projections 10 with the shoulder 11.
Patent GB-1041706-A (GB)
Title: Method of and device for predrying and prestiffening ceramic slip
IPC: B28C1/08
Filed: 1964-11-11
Abstract: 1,041,706. Drying ceramic slip. TESLA NARODNI PODNIK. Nov. 11, 1964 [Nov. 14, 1964 (2)], No. 45927/64. Heading F4G Slip of ceramic or other materials is predried and pre-stiffened prior to the production of flat or moulded ceramic articles by passage through an electric or electromagnetic field which heats the entire section of the stream of slip while being poured out from a supply tank. Transmission members for transforming electrical energy into heat energy, e.g. electrodes for resistance or dielectric heating and/or at least  one inductive coil are positioned in the stream. The tank and heating elements may be movable or stationary relative to a conveyer band upon which the articles are formed.
Patent GB-1171547-A (GB)
Title: Improvements in or relating to Four Phase Logic Systems
Inventor: STANES ALAN LESLIE
IPC: G11C19/18
Filed: 1967-10-09
Abstract: 1,171,547. Delay circuits. TELEPHONE MFG. CO. Ltd. 26 Sept., 1968 [9 Oct., 1967], No. 46141/67. Heading H3T. In a clock-controlled delay stage, an input signal IP applied to a F.E.T. M3 appears inverted and delayed at the drain of an F.E.T. M2 which is in series with M3 and has a capacitive load Cn (constituted by inherent electrode-substrate capacitance in the integrated F.E.T. construction), the delay being dependent upon the frequency of the clock pulses a first of which is applied from Q1 to the source and drain of M3 and to the drain of M2, and a second of which is applied from Q2 to the gate of M2. The first clock pulse, from Q1, is in fact applied to the F.E.T.'s M2, M3 through further F.E.T.'s M1, M7 which respectively charge to a voltage - VC the capacitance Cn1 and a capacitance Cs1 which is the spurious drain-substrate capacitance of M3. The second clock pulse, applied to M2 gate, connects the capacitances Cn1 and Cs1 in parallel, and the voltage - VC either remains thereon, if the input to M3 is O volts (" O "), or is discharged through M3 to Q1 (now at O volts) if the input to M3 is negative (" 1 "). The signal on Cn1 is thus inverted and delayed with respect to the input IP. The provision of the F.E.T. M7 to charge Cs1 removes the stated disadvantage of known arrangements in which the capacitance Cn1 is partially discharged into Cs1 when they are connected together, since Cs is initially uncharged (Cs, Fig. 1, not shown), so that the output signal from the stage is reduced in magnitude. The signal on Cn1 is the input signal to a further, identical stage having F.E.T.'s M4, M5, M6, M8, to which third and fourth clock signals are applied from Q3, Q4 to give an output at OP which is of the same polarity as the initial input IP but delayed by four clock pulses. The drains of M1 and M7 and of M4 and M8 are connected, in an alternative embodiment (Fig. 3, not shown), to the clock pulse sources Q1, Q3 respectively, instead of to the negative supply - VC, thereby simplifying the integrated circuitry.
Patent GB-1482533-A (GB)
Title: Station selector having an electronic tuner
IPC: H03J5/02
Filed: 1974-10-25
Abstract: 1482533 Channel selector tuning arrangements; digital to analogue conversion MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 25 Oct 1974 [31 Oct 1973 (4)] 46249/74 Headings H3Q and H3H A station selector comprises first and second binary memories such as presettable counters 4 and 5 for memorizing binary signals corresponding to units and tens digits respectively of a selected channel, first and second binary to decimal converters 12 and 11 for converting the binary contents of the first and second memories into corresponding decimal signals, a matrix 13 for combining the decimal outputs of both the binary to decimal converters and a selecting arrangement 17 for taking out a combination output from an intersection 2-83 of the matrix corresponding to a selected channel number for selecting one of preset channel selection voltages 17-6, 17-9 for coupling to a voltage variable reactance element of an electronic tuner 15. On operating a keyboard 1 for a first time a timing pulse generator 3 operates to gate (9, Fig. 1, not shown) an output from a decimal/ binary encoder 2 corresponding to the first actuated key into the memory 4 formed by a counter (7) and resets the memory 5 formed by a counter (6). The timing pulse generator includes mountable circuits 3-1, 3-2 and 3-3 which have increasing unstable state delay times which control the memories 4 and 5 such that when and only when the keyboard 1 is operated once again within a predetermined period from the instant of the first keyboard operation the contents of the counter (7) of memory 4 is transferred via a gate (8) to the counter (6) of memory 5 so that the memories 4 and 5 store the units and tens digits of the selected channel. The matrix intersection 2-83 corresponding to this channel number is connected via sockets at the intersection and plugs 17-1, 17-2 to turn on a transistor 17-5 in a D/A converter 17 so as to select a tuning voltage from 17-6 associated with the required channel which is coupled to the electronic tuner 15. The waveband corresponding to the selected channel is determined by AND gates 14-1 to 14-12 and OR gates 14-13 to 14-15 in a band selector 14 the output of which is coupled as power source through a switching circuit 16 to the tuner 15. When a channel is selected the conductive transistor 17-5 to 17-8 provides a signal to OR gate 19 which disables a clock pulse generator 18. When a switch 21 for selecting a channel by remote control is closed the pulse generator 18 is actuated to drive the counters (7 and 6) in the memories 4 and 5 until the selected channel is reached whereon the output from the signal selector 13 via OR gate 19 disables the clock generator 18: The presettable counters 4, 5 can be integrated circuits and are disclosed in detail (Figs. 3 and 4, not shown). Binary to decimal driver stages 10-1 and 10-2 for channel indicators 10-3, 10-4 are also disclosed (Figs. 7 and 8, not shown) as is a binary to decimal converter (Figs. 9 and 10, not shown) for the decoders 11 and 12.
Patent GB-1280894-A (GB)
Title: Scissors hoist lifting frames
Inventor: DUNKLEY DAVID CHARLES
IPC: B66F7/08
Filed: 1969-09-19
Abstract: 1280894 Platform elevators D C DUNKLEY 21 Dec 1970 [19 Sept 1969] 46427/69 Heading B8H A pivot device for use with a scissors hoist is adapted to engage the base frame of the hoist so that at least one end of the base frame is raised from the ground when the load platform is lowered, allowing the hoist to be turned about the vertical axis of the pivot. The pivot device comprises a beam 11 secured to a pivot rod 10 rotatably mounted in a base 21. Vertical plates 14 are welded to beams 13 which are welded to plates 12 on the ends of the beam 11, the plates 12, 14 being adapted to straddle longitudinal beams extending parallel to and between longitudinal side frame beams 30 of the hoist base frame. Compression springs 16 are secured to the beams 13 between the plates 12, 14. In operation, as the load platform 37 is lowered, the inner beams 36 of the scissors linkage engage seats 18 on plates 17 secured to the beams 13, thereby compressing the springs 16 and lowering the base 21 to the ground. Further lowering of the platform 37, causes the right hand end of the hoist to be raised from the ground, the hoist then being supported by the pivot device and by castor wheels 31, allowing the hoist to be rotated about the axis of the pivot device. In a modi. fication, the base frame of the hoist is provided at each end with pairs of castor wheels and the pivot device is located vertically below the centre of gravity of the hoist. In a further embodiment, the pivot device comprises a frame secured between the two inner beams of the scissors linkage and connected by a vertical pivot to a base.
Patent GB-1398750-A (GB)
Title: Protection of concrete against bio-deterioration
IPC: C09D5/16
Filed: 1972-10-11
Abstract: 1398750 Coated concrete surfaces INSTITUTUL DE CERCETARI IN CONSTRUCTII SI ECONOMIA CONSTRUCTIILOR 11 Oct 1972 [15 Oct 1971] 46759/72 Heading B2E Concrete is treated for protection against bio-deterioration in biologically active waters, by application of a solution capable of forming a toxic crust on the surface, the numerical value of the specific weight (in Newton per cm<SP>3</SP>) of the solution being 10<SP>6</SP> times the numerical value of the surface tension (in Newtons/cm) of the solution. The toxic substance may be in solution in white spirit. An exemplified composition comprises 94% copper naphthenate as 50% white spirit solution, and 6% #-naphthol or 3% tributyl tin oxide. The solution may 'be applied by painting in four applications the second being at least 50 minutes after the first, the third at least 30 minutes after the second and the fourth at least 60 minutes after the third.
Patent GB-1103795-A (GB)
Title: Improvements in or relating to an automatic coupling for a washing and spin-drying machine
IPC: F16D43/30
Filed: 1965-11-04
Abstract: 1,103,795. Friction clutches. CONSTRUCTAWERKE G.m.b.H. 4 Nov., 1965 [17 Nov., 1964], No. 46858/65. Heading F2C. [Also in Division D1] A friction clutch which provides a highspeed drive by a pulley 13 and a low-speed drive by a pulley 12 comprises weights 9 with friction surfaces 10 which move outwardly under centrifugal force against the action of springs to engage the inner surface of a pulley 13 and operate the drum at high speed, at low speeds of rotation the springs being sufficiently strong to hold the weights against the groove 11 and through the bearing 7 drive the low-speed pulley 12. The weights are formed as arcuate members mutually pivoted at one end and held by springs at the other end. The springs have different constants so that the weights do not act at the same moment. The drive is taken from a pole-change electric motor by a shaft 2 and a pinion 1.
Patent GB-977707-A (GB)
Title: Improvements in yarn feeding mechanism for circular hose knitting machines
Inventor: BROWN ALBERT MATTHEWS
IPC: D04B15/58
Filed: 1962-12-12
Abstract: 977,707. Knitting machines. G. STIBBE & CO. Ltd. Dec. 5, 1963 [Dec. 12, 1962], No. 46914/62. Heading D1C. A circular knitting machine has at least one pivoted yarn feeder which moves in an arcuate path from non-feeding position to a point just above and clear of the highest needles at that feed and then rectilinearly downward in front of the needle hooks. As shown, at one feed of a multifeed machines, four feeders F are provided each comprising a lever 15 pivoted on a common pin 19 mounted between the spaced links 13a of a bracket 13 secured to latch-ring 10. Each lever 15 comprises a knuckle 15a which fits into a socket 16a in the upper end of a profiled arm 16 whose lower end is slotted (16b) to receive a folded blade 17 carrying a yarn guiding tube 18. A recess 16c in the rear edge of each arm 16 adjacent a straight port 16d engages a pin 20 extending between links 13a and each arm 16 is biased by a spring 22. Bracket 13 is slotted to receive the sheaths 25 of Bowden cables 26 which are connected one to each lever 15 by a spherical element 27 and a spring latch 28. When a cable 26 pulls down a lever 15 its arm 16 rises straight edge 16d sliding on rod 20 until a portion 15c on the end of lever 15 engages a straight port 16e of arm 16 when arm 16 will move in an arcuate path. A ring 29 with teeth 30 rotates with the needle cylinder 1, being driven by a welt dial 3, cuts yarns removed from operation by the engagement of teeth 30 with a fixed cutter assembly 31 having a sharpened tungsten carbide tip. A cover 36 associated with ring 29 is placed under suction to hold the free ends of yarns and to remove any short pieces.
Patent GB-1322057-A (GB)
Title: Headgear and materials therefor
IPC: A42B1/02
Filed: 1970-10-05
Abstract: 1322057 Laminates P M ZELHBAUER [trading as MAYSERS HUTFABRIK oHG] 5 Oct 1970 [3 Oct 1969] 47250/70 Heading B5N [Also in Division D1] A textile material comprises synthetic or natural fibres needled, with or without thread, to one or both sides of a resilient or pliable foamed solid having a density of from 100 to 500 kilograms per cubic metre. The material may be formed with headgear. The fibres may be fitted before or after the material is formed into headgear. Alternatively, shrinkable fibres, e.g. wool fibres may be used, the fibres being shrunk after needling by the application of heat and/or a soap solution or a warm alkaline solution. The foamed solid may be in sheet form, preferably from 1 to 5 mm. thick. Latex, polyolefine, polyamide or polyvinyl chloride foams may be used. Preferably, polyester or polyesterpolyurethane foams having a density of from 100 to 300 kilograms per cubic metre are used.
Patent GB-1086165-A (GB)
Title: Improvements in or relating to a method of moulding elastomeric hollow articles, and to elastomeric hollow articles produced thereby
Inventor: NEWTON GERVASE HARRY
IPC: B29C41/04
Filed: 1964-11-20
Abstract: 1,086,165. Hollow latex articles. WOODHEY RUBBER & PLASTICS CO. Ltd. Nov. 9, 1965 [Nov. 20, 1964], No. 47305/64. Heading B5A. Hollow articles are made from a heatgellable latex by rotational moulding in a single plane, wherein the volume of latex used is not less than one half of the total included volume of the mould, plus one half of the volume of the material of the moulded article. The latex may be natural or synthetic rubber latices, synthetic plastics latices or synthetic plastics solutions and mixtures thereof. The mould is preferably heated while rotating. After heating, excess latex may be removed after cooling and further heating may be applied. The gel may be extracted then after quickly cooling the mould and the hollow articles inflated. This method may be used to produce meteorological balloons, football bladders etc.
Patent GB-1518980-A (GB)
Title: Tube mill
IPC: B02C17/06
Filed: 1975-11-21
Abstract: 1518980 Tube mills F L SMIDTH & CO AS 11 Oct 1976 [21 Nov 1975] 47973/75 Heading B2A A tube mill comprises a drying compartment 9 succeeded by grinding compartments 11, 2. Moist material is supplied via an inlet I and hot gas via an inlet 2. Ground material is discharged via a trunnion 7. A separating compartment or diaphragm 10 is provided between compartments 9 and 11. This diaphragm includes scoops 29 to convey material into the compartment 10, a central sieve drum 17, which is closed by a sieve plate 33, to admit gas and means to cause gas flow to meander through the separating compartment and out of the opening 21 in the shells as shown by arrow B, Fig. 4. Gas moreover flows as shown by arrows A Fig. 3 changing direction several times and thus separating off entrained material.
Patent GB-1240860-A (GB)
Title: Improvements in or relating to electromagnetic wave filter units
IPC: H01P1/203
Filed: 1968-10-11
Abstract: 1,240,860. Microwave filters. SIEMENS A.G. 11 Oct., 1968 [12 Oct., 1967], No. 48259/68. Heading H1W. A microwave comb-type filter is realized by printing a conductive pattern of resonant sections on one side of an insulating sheet having a conductive ground plane on the opposite side, the pattern being connected to the ground plane at requisite earthing points by contacts extending through the sheet, the construction being completed by a second ground plane spaced from the conductive pattern on the side remote from the first ground plane. The second ground plane may be carried by a second conductive sheet having a conductive pattern and ground contacts which are a minor image of those carried by the first sheet, the two sheets co-operating to form a "sandwich line" construction. Various patterns are shown in the Figures. The line sections 1, Fig. 1b may be unconnected and earthed at alternate ends by contacts 2. The line sections 11, Fig. 2b, are all connected at one end to an earth strip 14 (dots indicate earthing contacts) and an earthed screening member 15 is arranged to screen the narrow end-portions of the lines from each other. The broad portions are coupled together inductively. Alternatively, a capacitative coupling between unconnected line sections may be used (Fig. 2c). The band-stop filter of Fig. 3 comprises resonant line sections 21 in a staggered arrangement on either side of a through strip 22.