baber/WOPTO huggingface dataset:
Patent GB-1289962-A (GB)
IPC: F04C2/16
Filed: 1968-09-27
Abstract: 1289962 Moulding plastic substances PLENTY & SON Ltd 22 Sept 1969 [27 Sept 1968] 46122/68 Heading B5A A screw pump body has its bores for the screws formed wider than the desired finished bores, and a mandrel is inserted into each bore, or each bore in turn, and a settable plastics material is cast in the space between the mandrel and the wall of the body to thereby provide a coating of plastics material in the bore. A mandrel 6 coated with a release agent is located within a bore of a pump body 2, and the space 8 therebetween is filled with an epoxy, phenolic or melamine resin containing a powder filler e.g. of cast iron, bronze, silicone, slate, graphite or glass; after hardening of the resin the mandrel is withdrawn.
Patent GB-1290018-A (GB)
IPC: G01M1/22
Filed: 1969-06-26
Abstract: 1290018 Measuring rotary unbalance; measuring misalignment AVERY DENISON Ltd 17 Sept 1970 [26 June 1969] 32279/69 Headings G1N and G1X Rotary unbalance or misalignment of journals of a rotor 7 having three (or more) journals 8, 9, 17 is measured by supporting two of the journals 8, 9 for oscillatory movement, rotating the rotor, a measuring the oscillatory movement of the third journal 17 (and of the other journals, if more than three) relative to the supported journals 8, 9. As shown, supports 5, 6 are mounted by springs 4 for oscillatory movement sensed by moving coil transducers 10, 11, and a third transducer 14 carried by a member 15 common to both supports 5, 6 senses the relative movement. The outputs of the transducers may be combined to indicate what the unbalance will be when the journals are aligned.
Patent GB-1290092-A (GB)
IPC: H03G3/30
Filed: 1970-03-02
Abstract: 1290092 Automatic gain control RCA CORPORATION 2 March 1970 [3 March 1969] 9874/70 Heading H3T . In a superheterodyne receiver with automatic gain control gain reduction by means of an attenuator in the I.F. circuits follows at higher signal levels gain control of the R.F. amplifier. The I.F. amplifier comprises transistors Q109, Q111 in cascade connection, preceded by cascaded emitter-followers Q101, Q105, Q107 and gain is initially reduced by reduction of the bias on transistor 109, the control voltage being derived from source 50 via the cascaded emitterfollowers. During this initial phase transistor Q113 is biased to saturation, holding transistor Q113 at cut off and so cutting off transistor Q103 which forms the shunt arm of an attenuator, the series arm of which comprises resistor R101. When the voltage drop across resistor R107 is sufficiently reduced, transistor Q113 is biased to cut off, rendering transistor Q115 conductive whereby transistor Q103 becomes conductive and I.F. signal attenuation occurs. The arrangement is stabilized by D.C. negative feedback around the loop comprising transistors Q105, Q107, Q113, Q115 and Q103. As transistor 115 is biased conductive the voltage drop across resistor R 116 increases sufficiently to cause conduction in a transistor Q117 which forms a shunt across the bias network 54, 55, 57 of the R.F. stage in tuner 18, so biasing it back. The arrangement is such that gain control by variation of the bias on the R.F. stage is completed before the attenuator comes into operation. The arrangement is supplied from a constant voltage source 80 via a decoupling network comprising resistor R 119 and Zener diode Z101,. noise produced by the Zener diode being reduced by a network comprising transistors Q121, Q123, resistor R121 and capacitor C 101; transistor Q123 is of the double emitter type, providing separate supplies for transistors Q101, Q103 and Q105, Q107, Q115.
Patent GB-1296967-A (GB)
IPC: F02F1/24
Filed: 1970-02-16
Abstract: 1296967 I. C. engine combustion chambers S W BRIGGS 16 Feb 1970 [20 Feb 1969] 7383/70 Heading F1B [Also in Division C7] The wall surface of the combustion chamber 24 is coated with a base layer 28 of Ni and Al, e.g. by flame spraying a mixture of powdered Ni and Al in an acetylene rich flame, and an outer layer 30 of Cu and Cu 2 O e.g. by flame spraying in a hydrogen-rich flame. The layer 28 may be from 3 to 20mm thick and contain from 5 to 20% Al and 95 to 80% Ni and the layer 30 from 4 to 6mm thick. The coating 26 may have a porosity of 3 to 5% by volume and may be thicker at higher temperature regions of the wall surface, e.g. the centre of the piston head. In the diesel engine shown fuel is injected by a nozzle 22.
Patent GB-1306942-A (GB)
Title: Position indicators
IPC: F16H63/42
Filed: 1969-08-12
Abstract: 1306942 Indicating gear ratio JOSEPH LUCAS (INDUSTRIES) Ltd 6 July 1970 [12 Aug 1969] 14090/69 Heading B7H [Also in Divisions F2 and G5] A device for indicating the position of a gear selector lever of an automatic gear box of a road vehicle comprises a plurality of optical cables 18, one end 18b of each being arranged to form a composite pattern in a display panel 19, a light source 14 illuminating the other ends 18a of the cables in a receiving station 16 and a mask 15 coupled to the lever sliding between the source and the station to permit illumination of selected ends 18a which define at the panel a pattern corresponding to the position of the lever. To locate the mask in one of five positions a spring loaded ball on the mask is urged against a pair of six parallel conductive bars. Alternate bars are earthed and the others connected through the source 14 to the vehicle battery thus the source is only energized when the mask is in a stable position and not during gear changing.
Patent GB-1307826-A (GB)
Title: Flow measuring apparatus
IPC: G01F3/10
Filed: 1969-10-09
Abstract: 1307826 Measuring fluid-flow CADBURY BROS Ltd 1 Oct 1970 [9 Oct 1969] 49568/69 Heading G1R. In a liquid flow measuring apparatus in which an output shaft 12 of a flowmeter 10 is driven by a constant speed drive 17 the speed ratio of which drive 17 is controlled by a device 19 supplied with two pressure signals from sensing units 20, 21 in the inlet 14 and the outlet 15 of the meter 10 the arrangement is such that when a pressure drop occurs between the inlet and outlet pressures the drive 17 is varied to reduce such pressure drop. The device 19 may be a diaphragm converter.
Patent GB-1324230-A (GB)
Title: Imidazoline derivatives
IPC: C07D233/04
Filed: 1971-12-20
Abstract: 1324230 Imidazoline derivatives GISTBROCADES NV 20 Dec 1971 59091/71 Heading C2C r Novel compounds of the Formula I wherein each of R 1 , R 2 , R 3 , R 4 , R 6 , R 7 , R 8  and R 9  are hydrogen, halogen or C 1-6  alkyl or alkoxy; each of R 5  and R 10  are hydrogen, halogen or C 1-6  alkyl or alkoxy or R 5  and R 10  together are a -CH 2 CH 2 -, -CH=C(Hal)- (wherein Hal is chlorine or bromine) or -CH=CH- bridge between the phenyl nuclei; and each of R 11 , R 12  and R 13  are hydrogen, or C 1-12  alkyl, and acid addition and quaternary ammonium salt thereof may be prepared by (1) reacting an appropriately substituted imidazoline with a compound of the Formula III wherein Y is a halogen atom, (2) for compounds I in which R 5  and R 10  together are -CH = CH-, by reduction of a compound I in which R 5  and R 10  together are -CH=C(Hal)-. Pharmaceutical compositions of the compounds I show diuretic activity when administered orally or parenterally with the usual excipients.
Patent GB-1327659-A (GB)
Title: Abrasion resistant flexible hose
IPC: F16L57/00
Filed: 1971-09-27
Abstract: 1327659 Moulding rings on to pipes WEATHERHEAD CO 27 Sept 1971 44972/71 Heading B5A [Also in Division F2] In making a flexible hose 11 having means for protecting the external surface thereof, the hose surface is longitudinally serrated and bumper rings 25, formed of a more abrasive material than the hose, are moulded in situ on the hose with or without the application of an adhesive. A length of the hose is placed in an injection moulding split die which has a plurality of chambers extending circumferentially around the hose and the chambers are filled with liquid plastic material at a temperature of 350‹ F. and the plastic material is allowed to harden. The material of the bumpers (e.g. polypropylene) may be such that it shrinks on cooling or curing so as to grip the hose so that the latter is compressively stressed radially.
Patent GB-1327766-A (GB)
Title: Road sign in the form of a pedestrian crossing
IPC: E01F9/06
Filed: 1969-09-25
Abstract: 1327766 Road signs C C G ANDERSON 4 Sept 1970 [25 Sept 1969] 47316/69 Heading E1G In a "zebra" crossing road sign each of the white stripes is formed by a single preformed panel 1 - e.g. of concrete, plastics, or mastic compound - removably located in a metal or concrete frame 4 let into the road surface, each panel having a substantial thickness of white. Worm panels may thus be individually replaced. The white panels and frames may be spaced across a road or (as shown) alternated with frames for removable block panels 2. The sign may be rendered inoperative by substituting black panels for white.
Patent GB-1328917-A (GB)
Title: Telphone subscriber equipment
IPC: H04M1/58
Filed: 1971-12-09
Abstract: 1328917 Telephone subsets; substation circuits STANDARD TELEPHONES & CABLES Ltd 9 Dec 1971 57196/71 Headings H4K and H4R In a telephone subset in which power for separate microphone and receiver transistor amplifiers is derived from the DC line current, the gain of each amplifier is controlled by respective variable resistance devices in accordance with the magnitude of the line current and a resistor-capacitor active network is used to effect directional separation within the subset in place of a hybrid transformer arrangement i.e. the circuit does not include inductances and is therefore suitable for integrated circuit techniques. Transmit Amplifier:-An electrodynamic microphone M is connected to a three stage amplifier comprising transistors TR2-TR4 and employing both AC and DC feedback stabilization via resistor R8, capacitors C6 and C9 providing frequency filtering to prevent unwanted self-oscillation. The output of this amplifier is fed to the base of a transistor TB1, the magnitude of the alternating voltage input to TB1 depending on the value rd of the resistance of diodes D1, D2, which in turn depends on the DC line current, an increase in line impedance, i.e. a decrease in line current, leading to an increase in the AC output of transistor TR1. Receive Amplifier:-Incoming signals are fed to receiver R via an amplifier comprising transistors TR5, TR6 the latter transistor having a variable resistance device comprising diodes D3, D4 as its collector loadso dc the diodes also forming part of an as feedback loop through R12. The arrangement ensures that the voltage input to transistor TR5 is a constant value irrespective of line resistance. Anti-sidetone Circuit:-consists of a circuit balancing arrangement comprising an R-C network consisting of C1, R2, C2 and R3. The specification quotes a balance condition whereby the input signal to the receiver amplifier is substantially zero when an amplified microphone signal is present. Circuit Protection:-A Zener diode ZD is provided to protect against high voltage surges on the line appearing across the transistor circuitry and resistor R1 limits the surge currents when ZD breaks down. A diode bridge DB protects the amplifiers against polarity reversals on the line.
Patent GB-1330982-A (GB)
Title: Magneto-cielectric materials
IPC: H01F1/28
Filed: 1971-09-11
Abstract: 1330982 Moulding iron-powder-filled plastics KHARKOVSKY ELEKTROMEKHANICHESKY ZAVOD IMENI 50-LETIA VELIKOI OKTYABRSKOI SOTSIALISTICHESKOI REVOLJUTSII 11 Sept 1971 42461/71 Heading B5A [Also in Divisions H1 and H2] Electrical components, e.g. slot wedges or inserts for machines, rotor or stator cores, magnetic shunts or contactor cores, having mag. netic properties, are made by moulding by a process comprising mixing iron powder with a thermosetting resin containing a curing agent; subjecting the mixture to vacuum to remove included air or other gases or volatile reaction products; batching the composition and rolling into sheets having a thickness greater than that of the desired finished articles; shaping the sheets to form compacted blanks, allowing curing to take place for a period under ambient conditions and then completing the curing by applying heat in a controlled manner. Shaping may be performed by pressing between dies (Fig. 1 and 2, not showu) which may also cut the compacted blanks and combine them with glass fibre reinforcement. Alternatively the rolled sheets may be shaped into slot inserts by profiled rollers (Figs. 3-5, not shown) and subsequently severed, the production of slot wedges (Fig. 4, not shown) for various sizes of electrical machines being described. The preferred resin is a blend of 40-45% furfural resin with 60-55% of an epoxide mixed at 100‹ C. in the presence of maleic anhydride. Either hexamethylenediamine or polyethylenepolyamines may be used as curing agents and dibutyl phthalate plasticizer may be added. Typical proportions for the moulding composition (by weight) are 100 parts of resin, 300 to 400 of iron powder (grain size up to 50 microns), 15 of curing agent and 2 of plasticizer. The compacted blanks may be cold cured for 12-15 hours then heated in an air-drying cabinet from 180‹ to 200‹ C., kept at this temperature for 2 to 2¢ hours and then allowed to cool.
Patent GB-1332849-A (GB)
Title: Turbinegenerator rotors
IPC: H02K1/28
Filed: 1971-09-21
Abstract: 1332849 Turbo generator rotors TSENTRALNY NAUCHNO-ISSLEDOVATELSKY INSTITUT TEKHNOLOGII MASHINOSTROENIA 21 Sept 1971 43842/71 Heading H2A In a turbine-generator rotor comprising two generally disc-shaped end members 1, 2 and a plurality of intermediate disc-shaped members 5, 6 all having a central bore 3, 7 along which extends a rod 8 forming the main mechanical link bracing the members together, additional mechanical links 15 are provided by a plurality of ring-shaped members 16 each having its external curved surface pressure fitted into respective annular sockets 17 so made in the rotor periphery that the two halves of each socket are made in adjacent ones of two members 1, 2, 5, 6 on respective sides of the junction therebetween, and structures retain the members 16 in the sockets. As shown, the structures are screws 19 threaded partly into both the members 16 and a central radial projection in the sockets 17, and in Fig. 5 they are lock rings (20). Projections 9, 11, 13 received in cavities 10, 12, 14 axially align the disc-shaped members. There is a slight clearance between the members 16 and the projections 18.
Patent GB-1332896-A (GB)
Title: Switching arrangements combined with control systems
IPC: G08B9/00
Filed: 1970-10-29
Abstract: 1332896 Electric correspondence control systems E M I Ltd 29 Oct 1970 [7 Oct 1969] 49090/69 Heading G1N [Also in Division H2] A switching system for enabling the rudder of a ship to be controlled when the navigator is at port, midships or starboard positions comprises switches 4, 5, 6 positioned at the port, midships and starboard positions respectively so that an associated potentiometer 1, 2 or 3 may be set to control the rudder position, the actuation of one of the switches connecting the signal from the associated potentiometer to a terminal 14 and disconnecting the signals from the other two potentiometers. The system includes a voltage source connected to a terminal 9 and relays 7, 8 having coils 12, 13. With the switches in the positions shown, the signal from the midships potentiometer 2 is supplied via contacts 15, 18 or 17, 16 to the terminal 14 which is connected to a servo control for positioning the rudder. If the navigator now moves to the port side, the depression of switch 4 energizes the coil 12 and causes the contacts 15, 16, 21, 22 to change over thereby connecting the slider 25 of potentiometer 1 to the terminal 14 via the contact 15. On release of the push button switch 4 the relay coil 12 remains energized via the switch 6 and the contact 21. If the navigator now moves to the midships or starboard positions depression and release of the associated switch de-energizes the relay 12 and enables the rudder to be controlled from the new position. Mechanical or electrical linkages may be provided between the potentiometer sliders.
Patent GB-1340500-A (GB)
Title: Capacitor manufacture
IPC: B22F3/04
Filed: 1971-04-19
Abstract: 1340500 Isostatlcally compacting powders STANDARD TELEPHONES & CABLES Ltd 19 April 1971 [7 April 1970] 16398/70 Heading C7D [Also inDivisionsB5 and H1] A porous metal capacitor anode is made by isostatically compacting binder-free valve metal powder and anodising the green compact. As shown an elastomer container 1 is filled with powder and closed by elastomer lid 2. The container 1 is placed in the bore of a die member 3 to rest against a bottom member 4 of the die and compacted by piston 5. The container and lid may be made of PTFE, latex or polyurethane. The metal powder may be tantalum, titanium, niobium or aluminium.
Patent GB-1340759-A (GB)
Title: Pallet legs and devices
IPC: B65D19/40
Filed: 1971-12-21
Abstract: 1340759 Load handling pallets F P BRENNAN 21 Dec 1971 59245/71 Heading B8H A pallet leg of sheet metal or plastics material and adapted to be secured to a load, e.g. to a bottom flap of a corrugated board box or to the bottom sheet of a stack of sheets, consists of two leg portions 15, 16 arranged at right angles and formed at the top with inwardly directed flanges 19, 23, the flange 23 being spaced .above the flange 19 by a distance to receive and support a laminar part of the load. The flanges are formed with upwardly-directed projections 19a, 26. In a modification, Figs. 7-9 (not shown), the lower flange is formed with an extension for locating, a strap extending around a stack of sheets supported by the pallet legs.
Patent GB-1341231-A (GB)
Title: Spacer plates having a regular array of through apertures
IPC: H01J17/49
Filed: 1971-02-26
Abstract: 1341231 Forming channels in glass spacer plates FERRANTI Ltd 18 Feb 1972 [26 Feb 1971] 5529/71 Heading C1M In the manufacture of apertured glass or ceramic spacer plates for gas discharge visual display devices, members 2 of rectangular section with pairs of opposite parallel faces 3, 4 are assembled and seamed together so that the faces (4) combine to form parallel surfaces, a series of parallel channels 8 are formed in one or both of these surfaces in a direction normal to the faces (3), the members 2 then being separated and reassembled so that the channels 8 in each member co-operate with an adjacent member to form the apertures 9. With one set of channels, the apertures have one flat face. With two sets, the apertures may be in lines, as in Fig. 4, or they may be off-set to give a staggered series. As shown in Fig. 4, the strips may be reassembled in a carbon jig, with positioning pegs 13 engaging the end channels 12 and a number of the apertures 9. A low melting point glass foil 14 is then placed in end apertures 9(A) of each strip and fused to band the strips together and also thereby to form a gas-tight seal round the edges of the plate. The channels 8 may be of any suitable crosssection such as the semi-circular shown, or V- or rectangular section, and may be formed by etching or by cutting. The strips 2 may be temporarily secured together either by clamping means or by wax or cellulose caprate and the block 1 secured to a base plate as by wax.
Patent GB-1345262-A (GB)
Title: Drive arrangement for mining machines heter
IPC: E21C29/10
Filed: 1971-04-16
Abstract: 1345262 Mining machine haulage COAL INDUSTRY (PATENTS) Ltd 4 Feb 1972 [16 April 1971 11 May 1971] 9598/71 and 14251/71 Heading E1F In a mining machine which hauls itself to and fro along a fixed chain by the driving of at least one of two sprockets over which the chain passes, the sprockets have independent drives. When both sprockets are driven the control thereof is such that either they can exert substantially equal force on the chain or the currently leading sprocket can exert substantially all the force required to haul the machine along the chain whilst the then trailing sprocket exerts only sufficient force to haul the relatively slack chain about itself. The sprockets: can rotate about parallel axes or about axes arranged normal to one another so that each sprocket then engages with alternate links of the chain. The two drives involve hydraulic motors powered from a single pump and gearing, which may include epicylic gearing.
Patent GB-1349142-A (GB)
Title: Fixing devices
IPC: F16B13/14
Filed: 1970-02-26
Abstract: 1349142 Screw sockets D BRYCE-SMITH 30 April 1971 [26 Feb 1970 6 May 1970] 9483/70 and 21869/70 Heading F2H A screw or nail socket is formed as a nested helix of metal or plastics flat resilient strip material with a width between 0À6 and 0À1 inches, and a thickness between 0À002 and 0À05 inches. The socket is suitable for use in blind bores (Fig. 2) or in panels (Fig. 5), and may initially be in the form of a continuous tube (Fig. 7) with weak walls at the steps of the helix which fracture when the socket is used to form the nested helix. One or both edges of the strip may be serrated, and the strip may be coated with latex, or roughened. Steel, aluminium, polyethylene, polypropylene, polycarbonate, nylon, glycol-terephthalic acid polyester, and polyformaldehyde-ethylene oxide polymer, are suitable materials.
Patent GB-1355500-A (GB)
Title: Sheet feeding mechanism
IPC: B65H9/14
Filed: 1971-01-19
Abstract: 1355500 Feeding sheets TIMSONS Ltd 11 Jan 1972 [19 Jan 1971] 2705/71 Addition to 1191169 Heading B8B In the sheet feeding mechanism according to Specification 1,191,169 (Heading B8R) the feed roller or rollers are arranged to be driven through a drive train which permits the angular position of the roller(s) relative to the drive to be adjusted, to advance or retard the movement at which the sheets are engaged by the roller nip.
Patent ID-26736-A (ID)
Inventor: INADA SHUJI
IPC: C07C67/56
Filed: 1999-12-24
Abstract: A method which comprises heating an aromatic polyester together with bis- beta -hydroxyethyl terephthalate and/or low condensates thereof to conduct predecomposition, and reacting the predecomposition mixture with ethylene glycol to convert the terephthalic acid components contained in the mixture into bis- beta -hydroxyethyl terephthalate and/or low condensates thereof; a method which comprises bringing the solution composition obtained by the above process into contact with a cation exchanger and/or an anion exchanger to thereby obtain bis- beta -hydroxyethyl terephthalate lowered in ion content; and a method which comprises subjecting a bis- beta -hydroxyethyl terephthalate containing mixture lowered in ion content to preliminary evaporation or distillation to thereby distill away low-boiling compounds, and subjecting the resulting mixture to evaporation or distillation in vacuo to thereby obtain pure bis- beta -hydroxyethyl terephthalate having a total content of cations and anions of 15 ppm or below.
Patent ID-27310-A (ID)
Inventor: TOMKO REVATHI R
IPC: C08G18/00
Filed: 1999-06-22
Abstract: A process for producing a coating compositions for use over chalky substrates comprising a partial interpenetrating network of a polyurethane component and a waterborne polymer component, wherein the polyurethane component is prepared in the presence of the waterborne polymer component.
Patent IL-102951-A (IL)
Title: 1-SUBSTITUTED 1H-IMIDAZO £4, 5-c| QUINOLIN-4-AMINES, PHARMACEUTICAL COMPOSITIONS CONTAINING THEM AND SOME NEW INTERMEDIATES THEREFOR
IPC: C07D401/12
Filed: 1992-08-26
Abstract: 1-substituted 1H-imidazo[4,5-c]quinolin-4-amines, active as immunomodulators and antiviral agents. Also, intermediates in the preparation of such compounds, pharmaceutical compositions, and pharmacological methods of use.