baber/WOPTO huggingface dataset:
Patent GB-1206610-A (GB)
Title: Improvements in pneumatic conveying system
IPC: B65G53/22
Filed: 1967-12-29
Abstract: 1,206,610. Pneumatic conveyers. FULLER CO. 29 Dec., 1967 [23 Jan., 1967], No. 59069/67. Heading B8A. The flow of granular material into an entrainment chamber 101 of a pneumatic conveying system is regulated by a valve 106 actuated by a modulating control mechanism acting in response to pressure variations in the system, the arrangement being such that a valve at the discharge end of the conveying line may be closed and re-opened without any blocking of the conveying line during the period of shutdown. As shown, the control mechanism comprises a valve housing 112 divided into upper and lower chambers, the upper chamber being divided by a flexible sealing sheet 108 into an entrainment chamber 101 and a balance chamber 127 connected by a tube 123 to the air supply duct 23. The lower chamber is divided into control chambers 113, 114 by a flexible diaphragm 111 secured to the stem 107 of the valve 106, which is urged to the closed position by an adjustable spring 115. The control chambers 113, 114 are connected by tubes 118, 119 to the air supply duct 23 at positions upstream and downstream, respectively, of an adjustable pressure differential device 122. In operation, the valve 106 remains closed until the air flow increases to produce a sufficient pressure drop across the device 122 to cause the diaphragm 111 to move down against the action of the spring 115, thereby opening the valve progressively. The introduction of material through the valve increases the flow resistance in the conveying line 24 thereby opposing the free inflow of air through the device 122 and reducing the pressure differential across the diaphragm, which then rises through a corresponding distance. The control device thus modulates the rate of material inflow in proportion to the air flow rate. In a modification, Fig. 4, for use when it is required to operate the system at a substantially constant pressure regardless of changes of line length, material or air supply, an automatically adjustable valve 95<SP>1</SP> is provided wherein a chamber 84 is connected to the air supply duct 23 by a conduit 89 and has its upper wall constituted by a diaphragm to which the valve gate 81 is connected. An increase in air pressure raises the gate 81 and reduces the pressure differential across the valve, thereby reducing the flow of material through the valve 106 and causing a decrease in pressure in the system.
Patent GB-1448135-A (GB)
Title: Code detecting device
IPC: G03B17/24
Filed: 1973-12-21
Abstract: 1448135 Optical code detector EASTMAN KODAK CO 21 Dec 1973 [2 Jan 1973] 59415/73 Heading G4M Articles such as film cartridges carrying an optical coding are carried on a conveyer past a reader. The reader carries a plurality of photocells 26, each responsive to a bit of the coding, which are coupled via amplifiers 28 and switches 30 to an AND gate. The switches have two positions arranged to supply a signal to the AND gate if the photo-cell detects a mark or if the photo-cell detects a space respectively and has a third position rendering the value of the bit immaterial. The AND gate is enabled by a flipflop set on detection of an article and the codes are examined during a small period T2. If a correct code is sensed the AND gate resets flip-flop B and a zero value is fed to a shift register. If an incorrect code is sensed a "1" is stored in the shift register to operate an eject air valve when the cartridge arrives at an eject position.
Patent GB-1490979-A (GB)
Title: Brushless ac synchronous motors
IPC: H02P25/02
Filed: 1973-12-22
Abstract: 1490979 Excitation circuits for synchronous motors CAV Ltd 21 Nov 1974 [22 Dec 1973] 59676/73 Heading H2A To enable the excitation of the field winding 22 of a brushless synchronous motor to be independent of rotor rotation, the field winding is connected to the rotatable secondary winding 20 of a transformer 18 whose primary winding 17 is connected in circuit with an inverter 19 which feeds the stator winding 13 and is connectible to a D.C. supply 16, the field current being derived from the ripple which inverter operation superimposes on the D.C. drawn from the supply. A rectifier 21 is placed in circuit between the transformer secondary and the field winding.
Patent GB-1325070-A (GB)
Title: System for supplying energy to a device at high potential
IPC: H01H33/42
Filed: 1970-12-18
Abstract: 1325070 High voltage switches ALLMANNA SVENSKA ELEKTRISKA AB 18 Dec 1970 [19 Dec 1969] 60142/70 Heading H1N [Also in Division H2] A system for supplying energy to a device 3 located at the potential of a H.V. line 1 with which it is operatively associated, comprises means 12 for supplying energy from the current in the line when sufficient current is flowing, a generator 13 located at line potential and supplied with driving power from a source at earth potential, and a control system to start the generator when the line is disconnected or is carrying insufficient current. The energy may be used for the control of a circuit-breaker 2, e.g. a gas-blast circuit-breaker having a blast valve 3 with an electrodynamic operating device having a coil 4 which is energized by the discharge of a capacitor 6 when a thyristor 5 is triggered by a tripping signal. This signal is transmitted from a conductor 10 dy a light pulse device 7, a light conductor 8 anb photodetector 9. The capacitor is charged from a device 11 which is normally supplied from a shunt or current transformer 12. Should the voltage across the capacitor 6 fall or should contacts 18 be opened on the opening of the circuit-breaker, a sensing device 17 energizes a light source 19 to transmit a light signal to a photo-detector 21 to effect the closing of a contactor 22. This energizes an electric motor 16 which drives an hydraulic pump 15 to supply an hydraulic motor 14 to drive the generator 13. In an alternative arrangement, Fig. 2 (not shown), the motor 16 drives the generator 13 through an insulating rod.
Patent GB-1339139-A (GB)
Title: Process for preparing a blended solution of different types of high molecular compounds
IPC: C08G69/10
Filed: 1970-12-29
Abstract: 1339139 Poly(γ-alkylglutamate-N-carboxy anhydride) compositions AJINOMOTO CO Inc 29 Dec 1970 [30 Dec 1969] 61511/70 Headings C3P and C3R [Also in Divisions B2 and B5] An optically-active γ-alkyl glutamate-N- carboxy anhydride (A) is polymerized in a solution of an elastic high-molecular compound (E) to yield a clear homogeneous blended solution. In (A), the alkyl group may be a C 1-4  alkyl; mixtures of different anhydrides (A) may be used. (E) may have glass transition or softening point < 15 C and elongation > 200%. (E) may be polyurethane, natural rubber, synthetic rubber, e.g. polychloroprene, isoprene/isobutylene copolymer, acrylonitrile/ butadiene copolymer, butyl rubber, polybutene, chlorosulphonated polyethylene, butadiene / styrene copolymer, polybutadiene, polyisoprene, chlorinated polyethylene, ethylene/propylene copolymer, polyalkyl acrylate, intramolecularly plasticized polyester, organopolysiloxanes, polyethers, or polyamides. (A)/(E) weight ratio may be from 1 to 9. The solvent may be a chlorinated aliphatic hydrocarbon, an aromatic hydrocarbon, an ester, a ketone, dimethyl formamide, N-methylpyrrolidone, and/or dimethyl sulphoxide. Also present may be a non-solvent for (A), e.g. dimethyl ether, acetonitrile, tetrahydrofuran, chlorinated aliphatic hydrocarbons, or ligroin. As polymerization initiator may be used an amine, or NaOH or KOH. The polymerization temperature may be -20 to + 30 C. Also present may be cross-linking agents or accelerators for (E); further solvent; fillers, e.g. CaCO 3 , TiO 2 , and C black; plasticizers, e.g. dioctyl phthalate, tricresyl phosphate, or chlorinated diphenyl, triphenyl, naphthalene, or paraffin; surfactants; colourants, dyes; blowing agents; non-elastic polymers, e.g. polymers or copolymers of vinyl chloride, styrene, methacrylate, polycarbonate. Use.-Films; fibres; in artificial leather; coating glass, fabrics, woven, knitted or unwoven textiles, paper, wood, natural or artificial leather, book-cloth, release paper; or metal plates; as fibre-treating agents or paints.
Patent GB-1330160-A (GB)
Title: Particle analyzer
IPC: G01N15/12
Filed: 1970-12-31
Abstract: 1330160 Electro-physical measurement particle analysis GENERAL ELECTRIC CO 31 Dec 1970 [20 Feb 1970] 62081/70 Heading G1N In apparatus for analyzing particles especially colloids in a liquid suspension they are ELECTROPHORETICALLY DRIVEN through a constriction and the resulting impedance changes and time-of passage through the constriction is used to determine the number, size and mobility of the particles. The application may be to sizing and counting blood cells. As described a container is provided with a removable partition of ceramic, plastic or glass, having an aperture covered by a membrane having a pore therein of e.g. 1..50 microns diameter. MEMBRANE CONSTRUCTION preferably a sheet of polycarbonate less than 20 microns thick is subjected to particle radiation to cause fission tracking and then etched e.g. in NaOH. A small segment having the required sized hole is chosen and using a steromicroscope any other pores are coated with epoxy cement and layers stripped off the membrane to produce the required thickness. The preferred pore-size-ratio is an L/D of 5:1 Alternative materials are glass, mica polyester resins, or cellulostic, or a pair of membranes may be used separated by a microporous material (agar, cellulose nitrate etc) to reduce electroosmatic effects, Fig.4 (not shown). The particles are added to the electrolyte which may be NaCl; KCl, HCl, NaOH, with a surfactant to reduce agglomeration and clogging of the pore. This may be unlocked by ultrasonic agitation. The signals may be monitored by a C.R.T, peak voltmeter, or counter.
Patent GB-651227-A (GB)
Abstract: 651,227. Clips. HANDS. F. S, Oct. 14, 1948, No. 26708. [Class 44] A strap buckle in which two metal members 1, 9, Fig. 1, articulated together automatically grip the strap 2 on releasing the latter after tightening, has the member 1, to which one end of the strap is anchored, provided with a roller 8, or curved surface, against which the strap is pressed. Member 1 comprises three portions, one having a cross bar 3 for securing one end of the strap 2, the second provided with. a rectangular aperture 4, Fig. 5, and the third consisting of a neck formed with lugs 6 for the pivot pin 7. The roller 8 is mounted on the end bar of the member, being formed initially as a U-blank which, after being passed over the bar is closed to its circular form. The catch member 9, provided with finger pieces 10, 11, is pivoted on pin 7 by means of downturned lugs. To fasten the strap 2, the free end is passed through aperture 4 and through a rectangular aperture 12 in member 9 and when the strap has been tightened it is released, whereupon teeth 13, formed in one edge of aperture 12, grip the strap. The buckle is released by lifting the finger piece 10 to free the teeth 13 from the strap. In a modification described in the'Provisional Specification, the roller 8 may be replaced by a curved surface extending through an angle of at least 180 degrees and may be formed from the, tongue pressed out when forming aperture 4. Also the teeth 13 may be upwardly inclined.
Patent GB-2002158-A (GB)
Title: Keyless entrysystem
IPC: G07C9/00
Filed: 1978-07-24
Abstract: A keyless system for controlling e.g. the doors of a car comprises an input station containing a keyboard, a signal processor, a signal amplifier and an electromechanical grouping which converts the electrical output from the amplifier to mechanical movement in control of a lock. The system is activated by touch control of the keyboard and with the power section of the system energized, the lock is controlled in response to a proper sequence of digital input signals. The keyboard may have five selectors, resulting in approximately three thousand possible combinations for a base code. The signal processor responds to correct combinations of digital inputs with a drive signal. The signal processor is also programmable with temporary convenience codes which are loaded into the logic portion of the system with access preconditioned on entry of the base code. <IMAGE>
Patent GB-2003922-A (GB)
Title: Coating compositions
IPC: B22C3/00
Filed: 1978-08-29
Abstract: Flammable foundry coatings are disclosed in which the carrier liquid is safer to handle than previously used types e.g. isopropanol, and which also burns off more satisfactorily. The carrier liquid is a mixture of an essentially aliphatic hydrocarbon liquid of flash point greater than 32 DEG C, e.g. an aliphatic petroleum distillate, and a mono alkyl ether of a polyhydric alcohol, e.g. ethylene glycol monoethyl ether (oxitol) (registered Trade Mark).
Patent GB-2012335-A (GB)
Title: Props
IPC: E04G25/08
Filed: 1978-09-07
Abstract: A telescopic prop comprising inner and outer tubes 1, 2 is extended by an hydraulic jack 6 arranged between wedge clamps 7, 8 on the tubes 1, 2 respectively. Coarse adjustment is effected by means of a temporary double wedge clamp 3. A second support plate 15 may be held in place by another double wedge clamp 13. <IMAGE>
Patent GB-2011766-A (GB)
Title: Display apparatus
IPC: G09G5/32
Filed: 1978-11-03
Abstract: Display apparatus has a data store 5 in which characters to be displayed are stored as a plurality of linked strings of data, each such string being in respect of all characters having their origins on the same raster line. The data store comprises a frame store 8 having a plurality of locations in which are stored the individual items of the linked strings of data, a pointer store 6 having a separate storage location for each raster line and in each of which locations may be stored the address of a frame store location, and a pointer store address register 7. The data stored at each location of the frame store includes the identity of a character to be displayed, its position in a raster line and the address (if any) of the location within the frame store of the next item of linked data. The video signals for successive raster lines are derived alternately from two line stores 10A, B, one of these line stores being read while the other is being filled with data derived from the linked strings of data stored by the data store in respect of all characters contributing to the raster line in question. The apparatus enables characters to be displaced from regular line position, e.g. to form subscripts, or to be overlapped. <IMAGE>
Patent GB-2021048-A (GB)
Title: Improvements in or relating to devices for moving loads.
IPC: B65G7/04
Filed: 1978-12-05
Abstract: A device, attachable to an object to facilitate movement of such object on the ground, comprising a freely rotatable body 6 carried by a pivoted member 5 retainable in alternative angularly related positions in one of which the rotatable body is located below the bottom or end portion of the object in a ground engaging position and in the other of which the rotatable body is locked, clear of the ground. <IMAGE>
Patent GB-2010094-A (GB)
Title: A ligature instrument
IPC: A61B17/12
Filed: 1978-12-05
Abstract: A ligature instrument for binding a haemorrhoid by placing an elastic ring therearound includes a tube 15 with a suction cup (14, 17) at one end around which the ring can be positioned. Means (4) are provided to apply suction to the end of the tube remote from the cup and means (7, 14) are provided to displace the ring off the suction head to around the haemorrhoid. <IMAGE>
Patent GB-2012470-A (GB)
Title: Liquid metal cooled fast breeder nuclear reactor
IPC: G21C5/06
Filed: 1978-12-21
Abstract: A liquid metal cooled fast breeder nuclear reactor has a core comprising a plurality of fuel assemblies (14) supported on a diagrid and submerged in a pool of liquid metal coolant within a containment vessel, the diagrid being of triple component construction and formed of a short cylindrical plenum (25) mounted on a conical undershell (26) and loosely embraced by a fuel store carrier (27). The plenum (25) merely distributes coolant through the fuel assemblies (14), the load of the assemblies being carried by the undershell (26) by means of struts (50, 51) which penetrate the plenum (25). The reactor core, fuel store carrier and undershell provide secondary containment for the plenum. <IMAGE>
Patent GB-2038662-A (GB)
Title: Asbestos composition having organo-silane coating
IPC: C03C25/40
Filed: 1979-01-04
Abstract: There is disclosed an asbestos base material comprising opened chrysotile asbestos having a precipitation deposited siliceous layer and an organo- silane coating bonded to and overlying said siliceous layer. There is also disclosed a drilling fluid for use in oil and gas drilling operations containing the asbestos base material and a method of producing an organic-silane coated asbestos base material.
Patent GB-2016519-A (GB)
Title: Method of preparing an extracted beverage
IPC: A23L2/04
Filed: 1979-01-22
Abstract: A method is provided in which an extracted beverage with excellent organoleptical properties can be produced from the bark and sap layer of wood, particularly from young bark and sap from pine and juniper. The method includes as steps: batchwise extraction of the bark material with boiling water in a suitable extraction vessel and discharging the extract and extraction residue, repeating the extraction procedure using fresh bark material but without scaling the protective layer from the inner surface of the extraction vessel, repeating the procedure until a clearly distinguishable red colour reaction is observed in the extract, extracting in subsequent batches the bark material to this colour reaction, and recovering the extract so produced.
Patent GB-2013049-A (GB)
Title: Time delay switches
IPC: H05B37/02
Filed: 1979-02-06
Abstract: A power supply circuit for a lamp 16 comprises a time delay switch and a phase angle control circuit incorporating a triggering circuit 29 for triggering a triac 18 to control the amount of power supplied to the lamp. A power supply circuit 43, 44, 52, 54, 56, 60 and 62, is connected across the triac to provide a d.c. supply for a resistor- capacitor timing circuit 48, 58, 46 and 42 which forms part of the time delay switch and which determines the length of time during which the triac is triggered by the triggering circuit to supply the lamp. The power supply circuit derives power from the main supply through the load 16 during such time as the triac 18 is not conductive. <IMAGE>
Patent GB-2022286-A (GB)
Title: Alignment of guides in rod and bar mills
IPC: G01B11/26
Filed: 1979-05-29
Abstract: An optical instrument for accurately positioning the guide which controls entry of rod or bar into the work- rolls of a rolling-stand in a rod or bar mill is revealed. The instrument comprises a tubular telescope, the outer profile of which is identical to that of the rod or bar being produced, and hence identical to the corresponding roll-pass. The telescope slides into the exit side of the roll-pass, and is located with its axis perpendicular to the rotation axes of the work-rolls. The operator then views the guiding elements of the entry-guide through the telescope eyepiece, and adjusts the guide position until the guiding elements are correctly positioned with respect to a graticule in the telescope. <IMAGE>
Patent GB-2022492-A (GB)
Title: Method and apparatus for perforation of sheet material by laser
IPC: B23K26/00
Filed: 1979-05-30
Abstract: In providing perforation uniformity both in the spacing between multiple rows of perforations in sheet material 10 eg: cigarette filter paper and in the spacings among perforations within each row, a common laser beam 36 is shared among the rows, being directed to the sheet material through a common focusing element 40 for each adjacent pair of rows. In conducting the laser beam to each such common focusing element, a pair of modified beams 64, 66 is derived from the laser beam, each modified beam having light ray content divergent about an axis of symmetry thereof 64a, 66a which is parallel to the optical axis 40a of the focusing element. <IMAGE>
Patent GB-2054303-A (GB)
Title: Non-volatile semiconductor memory cells
IPC: H03K3/356
Filed: 1979-07-06
Abstract: Non-volatile bistable semiconductor latches having a pair of cross-coupled branches, each branch having a complementary driver or load and a driver connected in series at a respective node; at least one of the complementary drivers or loads, or drivers, includes a non-volatile IGFET having a variable threshold voltage (e.g. a FATMOS), said latch additionally including one or more buffer transistors (e.g. P-channel IGFETS) connected between one or both nodes and a latch output line. The buffer transistors increase the predictability of the state of the latch during power-up in a non- volatile mode of operation. Preferably the complementary drivers or loads, and the drivers, are constructed in CMOS or hi-channel MOS. The buffers can drive a single DATA output line or twin DATA, DATA lines in a push-pull configuration. <IMAGE>
Patent GB-2033735-A (GB)
Title: Crockery and cutlery cleaning machine
IPC: A47L15/50
Filed: 1979-10-11
Abstract: A crockery and cutlery cleaning machine comprises a crockery basket which is arranged above a rotatable spray arm and which is provided with a cutlery container (1) having a spray device comprising a water feed channel (5) leading to a spray head (7) arranged to direct cleaning liquid from the rotatable spray arm onto the cutlery in the cutlery container. The spray head may be provided with a deflector 8, or it may have a closed end with apertures in its sides. <IMAGE>
Patent GB-2035053-A (GB)
Title: Disposable nappy, and tape fastener therefor
IPC: A61F13/58
Filed: 1979-11-12
Abstract: A tape fastener for a disposable nappy having a back face and a front face, which fastener comprises a first pressure-sensitive tape piece 4 having one end portion 5 to be fixed to the back face 3 so that the other end portion 6 extends away from the nappy so that it can be folded back over the front face, and a second pressure-sensitive tape piece 9, one surface of which is peelably attached to and overlies said other end portion of the first tape piece and which has fixing means 11 on its other surface, wherein the bond between the back face 3 of the nappy and the first pressure-sensitive tape piece 4 is stronger than the bond between the first pressure-sensitive tape piece 4 and the second pressure-sensitive tape piece 9. <IMAGE>
Patent GB-2039898-A (GB)
Title: Process for preparing polymethylene polyphenyl polycarbamates
IPC: C07C239/00
Filed: 1979-12-12
Abstract: In a process for preparing polymethylene polyphenyl polycarbamates of general formula   <IMAGE>  by reacting an N-phenyl carbamic acid ester of general formula   <IMAGE> with formaldehyde or a formaldehyde- producing compound in the presence of an acid catalyst, the use of an acid having an acid dissociation constant (Ka) of not less than 1.25 x 10<-7> in acetic acid at 25 DEG C brings about an enhanced reaction rate as compared with those which have been attainable by prior art processes. For example, when an N-phenyl carbamic acid ester is reacted with a 35% aqueous solution of formaldehyde in the presence of trifluoromethane-sulfonic acid, the reaction rate is greatly enhanced as compared with the cases in which prior art acid catalysts such as sulfuric acid, hydrochloric acid, etc. are used.
Patent GB-2045201-A (GB)
Title: Excavating apparatus
IPC: E02F7/02
Filed: 1980-03-10
Abstract: The apparatus comprises a raisable arm (16) pivotally mounted at one end (20) about a horizontal axis (17). The arm is linearly extensible and mounts at its opposite end (24) a swivel device (33) about a second horizontal axis (32). The swivel device has an output (41) rotatable about an axis (40) generally perpendicular to the second horizontal axis (32). The output (41) mounts an excavating shovel or other appliance. The apparatus may be mounted on a conveyor-mounted vehicle for use in a mine, the arm (16) being slewable about a vertical pivot (12). <IMAGE>