baber/WOPTO huggingface dataset:
Patent GB-1512584-A (GB)
Title: 1,4-dithiino (2,3-c; 6,5-c') diisothiazole and related compounds
IPC: C09B49/06
Filed: 1976-10-22
Abstract: 1512584 1,4 - Dithiin - diisothiazole compounds E I DU PONT DE NEMOURS & CO 22 Oct 1976 [23 Oct 1975 7 Sept 1976] 43952/76 Heading C2C [Also in Divisions C3 and C4] Novel 1,4-dithiin-diisothiazole compounds of the formula wherein both R groups are the same and represent H, CN, COCl, COOR<SP>1</SP>, CONR<SP>2</SP>R<SP>3</SP> or COO-(alkyl) 4 N<SP>(+)</SP>; R<SP>1</SP> is H, (C 1 -C 5 )alkyl, phenyl, potassium or benzyl; R<SP>2</SP> and R<SP>3</SP> are independently H, (C 1 -C 5 )alkyl, phenyl or phenyl substituted by alkyl, alkoxy, nitro, halo or di(C 1 -C 5 )alkylamino, are prepared by reacting tetracyano-1,4-dithiin or 4,5-dicyano-1,3- dithiolen-2-one with sulphur in 1,2-dimethoxyethane at a temperature of from 50‹ to 280‹ C. in the presence of a basic catalyst, e.g. an alkali metal iodide or a tertiary aliphatic amine, and optionally converting the resulting compound wherein R is -CN to a compound where R is -H, -COCl, -CO 2 R<SP>1</SP>, -CONR<SP>2</SP>R<SP>3</SP> or -CO 2 (alkyl) 4 N<SP>+</SP>. The novel compounds may be used for the preparation of fluorescent polymers. The dicarboxylic acid derivative is useful as a dye or pH indicator.
Patent GB-1370611-A (GB)
Title: Curtain closures
IPC: E06B3/80
Filed: 1971-09-14
Abstract: 1370611 Flexible doors J MACKIE 14 Sept 1971 [15 Sept 1970] 44030/70 Heading E1J A flexible door for a cold store comprises a pair of flexible panels 1, 2 fixed to outer side frame members 3, 4 and overlapping at their inner edges when closed, closing means comprising cords 13, 15 attached to the upper inner edges of the panels passing over pulleys 8 and being attached to tension means. The cords are connected to weights 11, 12 or springs or elastic members. The panels may be of plastics material and have eyelets 24 selectively attached to runners slidable on a rail across the opening.
Patent GB-959874-A (GB)
Title: Improvements in or relating to a device for setting the free surface level of a liquid
Inventor: FRAGNEAU GUY
IPC: G05D9/12
Filed: 1962-11-23
Abstract: 959,874. Liquid level control. COMMISSARIAT A L'ENERGIE ATOMIQUE. Nov.23. 1962 [Nov.24. 1961], No. 44366/62. Heading G1H. In a device for setting and/or adjusting the surface level 10 of a liquefied gas in an open ended receptacle B the device comprises a gas type thermometer element 16 made up of a detection element 17 and a pressure sensitive element 19, the detector element 17 being disposed parallel to and above the surface 10 of the liquid in order to be subjected to the temperature gradient above the liquid surface 10. The device operates as follows. When the surface 10 is between the levels 11, 12 electric circuit in a relay R are open and valves V 1 , V 2  are closed so that evaporation of a liquefied gas in a bottle C places the liquid in the bottle C under pressure to feed liquid to the receptacle B. If the consumption of liquid in the receptacle B is greater than its liquid intake the level 10 drops to the level 11 and the element 17 heats up so that the gas therein expands to expand a bellows 19 to close contacts 20, 23 to energize, through the relay R the electrically operated valve V 1  which is opened to admit compressed gas to bottle C which forces an increased amount of liquid into the receptacle B to raise the level 10 to cool the element 17 and hence cause closure of the valve V 1 . If the consumption of liquid from the receptacle B is less than its intake the level 10 rises to level 12 to cool the element 17 and close contacts 20, 22 to energize and open valve V 2  which permits gas to escape from the bottle C and decompress the liquid therein and hence reduce the liquid supply to the receptacle B.
Patent GB-1286491-A (GB)
Title: A press for separating liquids from liquid-containing solids such as fruit
IPC: A47J19/02
Filed: 1969-09-11
Abstract: 1286491 Fruit juice extractors GUGELOT DESIGN GmbH 11 Sept 1969 [13 Sept 1968 23 Dec 1968] 44852/69 Heading A4C [Also in Division F1] A press for separating liquids from liquidcontaining solids, particularly fruits, comprises a machine of the trochoidal type having an eccentrically rotating piston 2 defining with a casing 1 working chambers which vary in volume as the piston rotates, material being charged into a working chamber at an inlet 4 and pressed between the piston and casing to force expressed liquid to an outlet 8 and solid residue to an outlet 9. The piston 2 is driven via an internal eccentric gearing 3 and has a trihedral section. Fruit is introduced through the inlet 4 via a hopper 5 within which is a macerating roller 13 rotating opposite a wall having teeth 14. Piston 2 only rotates when a hopper cover 6 is in place and after roller 13 ceases rotation, juice being pressed through a perforated lower casing wall port into a collecting chamber 7, the fruit residue passing through outlet 9 with the assistance of a spring loaded stripper 10. Trailing edge regions of the piston faces may be recessed relative to the trailing edges to form abutment faces (25), Fig. 1a, (not shown) for sweeping the fruit around the casing, the faces (25) having seals fixed therein of plastics material. Each piston working face may have a different configuration so forming three different capacity working chambers, the required one of which may be automatically selected by electromechanical or mechanical means which move piston 2 to the appropriate initial angular position. The spacing of roller 13 from the teeth 14 may be varied automatically and arranged to depend on the capacity of the chosen working chamber.
Patent GB-1532989-A (GB)
Title: Method of and device for controlling solenoid operated flow control means
IPC: F02D35/00
Filed: 1975-10-30
Abstract: 1532989 Automatic control NISSAN MOTOR CO Ltd 30 Oct 1975 [6 Nov 1974 7 March 1975] 45011/75 Heading G3N [Also in Division F1] The overall signal to output characteristic of apparatus employing a solenoid operated valve having a non-linear signal to output characteristic is made linear by adding to the analogue control signal a modulating signal whose waveform is such as to compensate for the non-linearity of the valve. In the carburetter shown in Fig. 1 the valves 24, 34, 36, 44, 52 and 62 are energized by pulse trains to be either fully open or closed so that flow control is obtained by the duty cycle of the applied pulse train. By this construction each valve suffers from time lag in operation and thus presents a non-linear characteristic when energized or de-energized. The valves are controlled by the circuit shown in Fig. 2 where the analog signal generator which is described as an exhaust gas sensor provides an actual valve signal which is added to a modulation signal and then compared with a desired value signal to produce a control signal for one of the valves. The shape of the modulating system waveform is chosen to complement the non-linearity of the valve, e.g. curve b in Fig.4 so that the control signal has a non- linearity, e.g. curve c in Fig. 4, which when combined give an overall linear relationship as a in Fig. 4. The modulating signal waveform may be sinusoidal, or the first derivative of a squarewave or a first order lag wave of a squarewave.
Patent GB-1243016-A (GB)
Title: Fluidic control device
IPC: F15C1/08
Filed: 1968-09-24
Abstract: 1,243,016. Fluidic control devices. AGA AB. Sept.24, 1968 [Nov. 11, 1967], No.45289/68. Heading G3H. A fluidic control device comprises two convergentdivergent nozzles 2, 3 arranged opposite each other with a control input 4 therebetween. Fluid admitted from the input 4 can be caused to flow through either nozzle and mix with fluid sucked in through the other nozzle. The nozzles can have inlet portions of different shape, or they can have different cross-sectional areas. One nozzle can be shut-off, to cause the fluid to lock-on to the other nozzle even after the one nozzle has been opened. A collapsible rubber bag can be fitted to one nozzle, which is filled to a certain pressure, whereupon the fluid discharges through the other open channel, until a negative pressure appears in the nozzle to which it is connected, causing the fluid to change direction and fill the bag. The nozzles can be adjustable or replaceable with respect to a centre section to vary their relative spacing. In Fig. 2 (not shown), two input channels (5) and (6) enter the walls of respective nozzles either by an annular slot, or annularly arranged openings, it being possible to connect each channel with a feedback from a nozzle, or by a separate fluid which can be at a negative pressure.
Patent GB-1473195-A (GB)
Title: Apparatus for portioning liquid metal
IPC: B22D37/00
Filed: 1974-10-21
Abstract: 1473195 Liquid metal metering apparatus NORSK HYDRO AS 21 Oct 1974 [19 Oct 1973] 45456/74 Heading B8N [Also in Division F2] An apparatus for metering liquid metal, e.g. liquid sodium, comprises a container 5 to be submerged in a melt, a pressurized gas supply 12 to the container and a valve removably mounted in the lower wall 4 of the container. The valve has an upwardly directed flange 17 which seats on a surface 14 around the inlet opening 22 of the container. The valve is pivotally mounted on a lever 2 which is used to move the valve into the opening 22. The lever is releasably mounted on a plate 8 by a wing nut 9. The metal is dispensed by the pressurized gas through a tube 13 to a mould of a die-casting machine.
Patent GB-1197438-A (GB)
Title: Improvements in and relating to Concrete Mixes
Inventor: SEYMOUR-WALKER KAY JOHN
IPC: B28B5/04
Filed: 1966-10-11
Abstract: 1,197,438. Wet concrete mix. NATIONAL RESEARCH DEVELOPMENT CORP. 11 Oct., 1967 [11 Oct., 1966], No. 45479/66. Heading C1H. A wet mix comprises cement, fine aggregate and/or sand, and pulverized fuel ash, the weight of PFA not exceeding the weight of cement or not exceeding “ of the weight of fine aggregate and/or sand, and the weight of PFA not being greater than 10% of the total weight of the solid constituents. The fine aggregate may be crushed limestone. Concrete articles may be made by introducing the wet mix into a mould so that at least one surface of the mix is in contact with a porous or perforated member, water is removed by pressing against the member and the concrete article removed from the mould immediately for example with a vacuum lifter.
Patent GB-1446268-A (GB)
Title: Method of making a semiconductor device
IPC: H01L21/265
Filed: 1974-10-22
Abstract: 1446268 Semi-conductor devices RCA CORPORATION 22 Oct 1974 [29 Oct 1973] 45622/74 Heading H1K In a method of making a semi-conductor device, such as an NPN transistor, wherein dopant atoms are ion implanted into a region 30, a temporary capping material 32 is deposited over the region surface to prevent out diffusion and/or evaporation of the dopant atoms during the subsequent annealing stage. The annealing is carried out at between 700 C. and 1,000 C. for 15 mins. to 1 hour. The capping material, which is etched away after the annealing stage, is of different material from that of an insulating layer 26 having a window 28 for passage of ions into the region 30. Suitable materials for the capping material are Si 3 N 4  when the layer 26 is of SiO 2  and vice versa. The refractory metals W, Mb, P1 and Pa, and an epitaxial layer of Si doped with As may also be used. After annealing and removal of the layer 32, contacts of Cr, Au are vapour deposited on the region 30, through an annular window in the layer 26 and on the back collector region 16.
Patent GB-1108844-A (GB)
Title: Improvements in or relating to conveyor systems
Inventor: BURROWS ARTHUR THOMAS CHARLES
IPC: B61B10/02
Filed: 1964-11-10
Abstract: 1,108,844. Conveyer systems. GEO. W. KING Ltd. 6 Oct., 1965 [10 Nov., 1964], No. 45849/64. Heading B7L. In a conveyer system of the kind wherein load carrying trolleys are propelled along a trolley track by pusher dogs spaced along and depending from an endless driven chain travelling above the trolley track, the latter has a branch track 10, Figs. 2 and 3, connected thereto from which any trolley thereon will tend to travel under the influence of gravity towards the main track, and a trolley feed control mechanism comprising a pivoted stop member 21, a roller 20, on a frame 18 carrying a fluid-operated ram 16, to maintain the stop member in a trolley holding position, the ram being operable to release the stop member, and pusher means 11, 14 connected to the ram and operable thereby to propel the trolley past the released stop member. As shown in Fig. 2, the pusher comprises a dog 14 pivoted on a lever 11 pivoted to a rigid frame member 13 at 12. The lever 11 is pivotally connected to the rod 15 of the ram 16, the latter being pivoted at 17 to the frame 18 which is pivoted to the frame 13 at 19. The stop member 21 is pivoted at 23 to frame members 22 connecting the frame 13 to the branch track 10. The ram 16 is connected by pipes 28 and flow regulating valves 27 to an electrically-operated bellows valve 26. A trolley can move in the direction A past the pivoted dog 14 to be held at the position 29 by the stop 23, which is prevented from moving by the roller 20. The trolley operates a switch 24 when in this held position. Adjacent the main track in the vicinity of the junction with the branch track 10, three cam switches are provided, two being adapted to be actuated respectively by associated pusher and retainer dogs on the driven chain of the conveyer whilst the third is adapted to be actuated by any load trolley on the main track as it approaches the junction. If the third switch is operated, then the circuit for operating the ram is broken. Similarly if the switch 24 is open, that is there is no trolley present on the track 10 awaiting transfer, the circuit for the ram remains broken. When a trolley is in the position shown in Fig. 2 and a free pusher dog and its associated retainer dog arrive at the junction of the tracks, the electric circuit is completed and the ram operated to swing the roller 20 out of contact with the stop 21. The lever 11 and dog 14 are also moved to push the trolley past the released stop into the path of the oncoming free dogs on the driven chain.
Patent GB-1190305-A (GB)
Title: Method of making a Getter Vacuum Pump
Inventor: MALIAKAL JOSEPH CHACKO
IPC: H01J41/16
Filed: 1968-09-27
Abstract: 1,190,305. Gettering; Ion pumps. NORTON CO. 27 Sept., 1968, No. 45982/68. Heading H1D. A method of manufacturing a getter vacuum pump comprises the steps of cleaning the pump body 12, assembling the pump and connecting it to outside pumping means 28, 30, operating said outside pumping means to reduce the pressure within the getter pump to substantially 10<SP>-4</SP> torr, heating the getter pump body during the latter portion of the above said pressure reduction at a temperature in excess of the maximum operating temperature of the getter pump body, then operating the getter pump whereby a getter source 22 in the pump is heated to emit getter material therefrom while the pump body is at said elevated temperature to further reduce pressure therein while an adherent primer coat of getter material is established on the inner wall of the getter vacuum pump body. The method is stated to prevent peeling of the getter layers from the wall of the pump during subsequent pumping cycles, and is applicable to getter pumps of all types, including those operating without ionization. The orbitron pump shown is provided with stainless steel piping 14 for cooling liquid, and bake-out heaters 24 in the form of electric blankets wrapped around the pump body. The said elevated temperature may be 500‹ C. and is preferably at least 100‹ C. higher than bake-out temperature. A chart of the steps of the method is provided (Fig. 2, not shown).
Patent GB-990099-A (GB)
Title: Improvements in and relating to electro magnetic brake mechanisms
Inventor: HASLEHURST ARTHUR KINDER
IPC: F16D65/28
Filed: 1962-12-06
Abstract: 990,099. Electromagnetic brakes. PARAMATIC DEVELOPMENT Ltd. Dec. 2, 1963 [Dec. 6, 1962], No. 46082/62. Heading F2E. An electromagnetic brake mechanism comprises a relatively slow-moving control member which operates a rotor at a relatively high speed through the medium of a high ratio gear train, and in which the rotor is arranged to be attracted and brought to rest by the energization of an electromagnet, which thereupon exerts an immediate and magnified braking effect through the gear train on the control member. The slow moving control member is a hand wheel 10 mounted on the shaft of the machine tool with which the brake is used, on which is also the first gear-wheel 14 of the gear train and the rotor is a soft iron disc 24 mounted on a shaft 22 on which is also the final gearwheel 21 of the gear train and a plate 23. The disc 24 is slidable on the shaft 22 but restrained from rotation by pegs on the plate 23 which engage in holes 25 in the disc; alternatively, the disc is splined to the shaft. The disc 24 is close to a pot-type electromagnet 26 but held away from it by a spring-loaded ball 27 set in the centre pole of the magnet. A friction band 29 on the shaft 11 carries an insulated contact 31 to which is connected one terminal of an electric circuit through which current may be supplied to the electromagnet. The other terminal is connected to either of two fixed contacts 32, 33, as directed by the position of a switch. Slight movement of the control member in one direction or the other, therefore, causes the electromagnet to attract the disc 24 and hold it still, producing the braking effect which is magnified back to the control member. A suitable rectifying circuit is included when when the supply is A.C.
Patent GB-1132202-A (GB)
Title: Improvements relating to flexible strip material for forming drainage tubes
IPC: E02B11/00
Filed: 1964-11-12
Abstract: 1,132,202. Flexible tubes. J. K. W. BAINES, A. S. BAINES and T. B. C. DAVIS. 11 Feb., 1966 [12 Nov., 1964], No.46155/64. Heading F2P. [Also in Division B5] Flexible strip, of the type having interlockable tabs and recesses along its edges so that one or more of such strips may be curled transversely to form a drainage tube, comprises a sandwich construction the outer layers being of liquidimpervious plastics each formed with spaced apertures and having a liquid-permeable strip of filter material trapped therebetween and overlapping the spaced apertures. The apertures in the two sheets may be wholly or partly in registration or out of registration and the filter strip may be narrower than the outer strips, the latter being bonded along their margins by welding or adhesive. The outer layers may be of high-impact p.v.c. and the filter of woven or non-woven glass fibre which may be bonded with e.g. phenolic resin or polyvinyl acetate and may also act as reinforcement. Alternative filter materials are felt, paper, asbestos or other natural fibres, metal or plastics gauze or porous p.v.c. The interlocked seams are welded.
Patent GB-1530357-A (GB)
Title: Purification of caprolactam
IPC: C07D201/16
Filed: 1976-11-08
Abstract: 1530357 Purifying caprolactam BAYER AG 8 Nov 1976 [13 Nov 1975] 46327/76 Heading C2C Crude caprolactam, containing acid, obtained by the rearrangement of cyclohexanone oxime, is purified by mixing it with 0À8-2À0 equivalents of a base (based on acid content of caprolactam) to bring the pH to 4-11, 3-6 wt. parts toluene and 2-10 wt. parts water (based on inorganic constituents excluding added base), whereby the mixture separates into three layers: an upper organic layer containing caprolactam, an aqueous layer containing substantially all of the impurities and a lower aqueous layer containing the acid as a salt with the said base, and removing the aqueous layer containing the impurities.
Patent GB-1468358-A (GB)
Title: Seal
IPC: D06B23/18
Filed: 1973-10-04
Abstract: 1468358 Seals IMPERIAL CHEMICAL INDUSTRIES Ltd 5 Sept 1974 [4 Oct 1973] 46377/73 Heading F2B A web 6 is wound into an vacuum chamber around a rod 5, against which it is pressed by a stationary silicone rubber sealing ring 4. The arrangement is used in continuous vacuum transfer colour printing from a paper on to a textile web.
Patent GB-1387834-A (GB)
Title: Vacuum distillation of metals
IPC: C22B19/04
Filed: 1971-10-07
Abstract: 1387834 Distillation of zinc I S C SMELTING Ltd 16 Aug 1972 [7 Oct 1971] 46764/71 Heading C7D A process for separating Zn and/or Cd, from Pb comprises pumping the Zn-containing molten Pb into the inlet of an evaporation vessel B at reduced pressure, in which the molten metal runs down a helical conveyor C allowing Zn to evaporate and pass over into condenser E, the Pb being recirculated. The condenser E contains molten Zn through which N2 is bubbled, the bubbles bursting at the surface of the molten Zn to form a fine spray on which the evaporated Zn condenses. The Zn then passes to a unit F where it is again evaporated and condenses on watercooled plates firstly as a solid and then in liquid form. The liquid Zn is collected in a launder G and passes into vessel H. For higher purity, some recirculation can take place. In another embodiment Fig.2 (not shown), the condenser is integral with the bottom of the vessel B, the molten Pb being removed before it reaches the condenser.
Patent GB-1311446-A (GB)
Title: Semiconductor devices
IPC: H01L29/00
Filed: 1971-10-07
Abstract: 1311446 Semi-conductor devices PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 7 Oct 1971 [10 Oct 1970] 46774/71 Heading H1K The arrangement of emitter zones 10 within a base zone 12 is such that the emitter zones have facing portions of reduced width to allow easier contacting of the base region through apertures in the passivation at the areas 13 while retaining ease of emitter contacting through apertures in the passivation at the wider portions 10. The transistor shown in Fig. 5 is provided with a deeper anti-breakdown peripheral region 5 of the same conductivity type formed in the collector zone at the same time as a region 18 (of the base conductivity type). Fig. 9 shows alternative shapes for the emitter zones 9, 10 and also shows the location of emitter contact apertures 16 and base contact apertures 17. The transistor of Fig. 5 is provided with a single aluminium electrode 20 (not shown) with strips running between the emitter regions but not overlying them and their thinner passivation. In the general case the emitter electrodes, also of strip form, may be used independently but in the transistor described the emitter strips are taken to region 18 which acts as a series of emitter resistors connecting the strip to a common electrode 19 (not shown). Several similar transistors may be formed in a common collector region and connected in parallel. Transistors may also be cointegrated with other semiconductor devices. The emitter-base structure may be incorporated instead in thyristors or other multilayer devices.