baber/WOPTO huggingface dataset:
Patent GB-1256602-A (GB)
IPC: H02M7/515
Filed: 1969-01-07
Abstract: 1,256,602. Transistor bi-stable circuits. DANFOSS AS. 7 Jan., 1969 [17 Jan., 1968], No. 962/69. Heading H3T. A 3-phase bridge inverter (Fig. 2) has a single quenching rectifier across its D.C. input and is controlled by an arrangement (Fig. 1) including a 3-stage ring counter 10 (detailed Fig. 11, not shown), which is cycled by an oscillator 8 (detailed in Fig. 10, not shown) in dependence upon the inverter output voltage and at six times the required inverter output frequency. The counter outputs are fed to frequency halfers DEF comprising bi-stable multivibrators (Fig. 12) connected via gate circuits in the form of blocking oscillators 11-16 (detailed in Fig. 13, not shown) to the control electrodes of the respective main rectifiers. The blocking oscillators supply trains of H.F. firing pulses on receipt of a positive square wave signal (Fig. 5, not shown) from the multivibrators D.E.F. A pulse output 7 from the oscillator, also at six times the inverter output frequency fires the quenching rectifier whereby all conducting rectifiers are periodically blocked. The phase sequence of the inverter output may be reversed by a change-over switch (shown dotted, Fig. 1) which changes over two of the ring counter outputs (e.g. to reverse an induction motor fed by the inverter).  To avoid incorrect firing sequence of the main rectifiers E1-E6, the multivibrators are provided with a correction circuit 17 including conductors 34, 35 (Fig. 12). Conductor 34 connects the collectors of Tr6, Tr8 via diodes D4, D5 to the junction of R17, R18 connecting the +ve supply to the base of Tr10. Likewise conductor 35 links the collectors of Tr9, Tr11 via diodes D6, D7 to the junction of R19, R20 connecting the +ve supply to the base of Tr7. When Tr6, Tr8 are both blocked and their collectors positive, the potential at the base of Tr10 is raised to an extent such that Tr10 must conduct irrespective of other factors. Thus Tr11 is blocked and the requirement that not all three controlled rectifiers of like polarity E1, E3, E5 (or E2, E4, E6) should be in the same condition simultaneously, is fulfilled. Likewise conductor 35 causes Tr7 to conduct when Tr9, Tr11 are both blocked. The ring counter outputs 19, 20, 21 are connected to the multivibrator inputs 25, 26, 27 respectively, while the three pairs of outputs are numbered 28 to 33 inclusive.
Patent GB-1257837-A (GB)
IPC: E21F11/00
Filed: 1969-03-13
Abstract: 1,257,837. Automatic gain control. BOFORS AB. 13 March, 1969 [26 March, 1968], No. 13401/69. Heading H4R. [Also in Division G1] A gain-control circuit for an amplifier 3 is shown in Fig. 2 where the drain source impedance of a field-effect transistor 8 forms part of a voltage divider including resistors 6, 7. The output voltage across the resistor 11 is controlled by the signal applied from the line 9 to the gate terminal The signal to be controlled is fed in on a line 5 and out on one 10. Fig. 3 shows a typical gain-control characteristic where F is gain. Alternatively the characteristic may be linear. The circuit is utilized in a pressure-sensor (see Division G1).
Patent GB-1258606-A (GB)
IPC: F15B11/16
Filed: 1969-10-02
Abstract: 1,258,606. Band brakes; spring and fluid brake operation; hydraulic clutches. BORG-WARNER CORP. 2 Oct., 1969 [31 Oct., 1968], No. 48590/69. Headings F2C, F2E and F2F. [Also in Division D1] Brake actuating means 26, in a washing machine including an hydraulic transmission 14 arranged to selectively drive a fabric container 11 or an agitator 12 and a brake mechanism operatively connected to the fabric container, comprises means 128 to exert a predetermined force on the brake mechanism to hold the fabric container and fluid pressure responsive means to engage the brake mechanism with additional force when the agitator is being driven. As shown the washing machine comprises an electric motor 16 driving a wash water pump 17 and the rotor 38 of an hydraulic vane or other reversible pump 21, the casing 36 of which is secured for rotation with the fabric container 11. The brake mechanism further includes an expandible band 123 on the casing 36 which is actuated by a piston 120 of the means 26 and is engageable with a fixed housing 37. When the pump 21 is rotated counterclockwise fluid is drawn from a sump 28 through a port 44 and discharged to a line 47 to the sump which line is closed at a predetermined pressure by a valve 48 and then to a line 141 supplying through a port 131 the means 26 to move the piston 120 to the right to engage the brake harder and through a reversing valve 54 an oscillatory agitator motor 22 the exhaust from which is adjustably throttled by a rotary valve 23. An agitator by-pass and relief valve 24 is provided having a piston 90 which is movable to the right to intercommunicate the line 141 and a line 140 leading to the pump inlet 44. When the pump 21 is rotated clockwise pressure fluid is supplied to a port 130 of the means 26 to displace the piston 120 to the left and disengage the brake 123 and to an adjustable rotary spin control valve 25 which throttles the pump output thereby causing the casing 36 and the fabric container to rotate.
Patent GB-1259016-A (GB)
IPC: F02B67/04
Filed: 1969-04-18
Abstract: 1,259,016. Shaft couplings. CONTINENTAL MOTORS CORP. 18 April, 1969, No. 19909/69. Heading F2U. [Also in Division F1] In an I.C. engine, means for connecting an accessory 26, Fig. 2, having an externallysplined driving element 30 to a crank-shaft (18), Fig. 1 (not shown), mounted on a crankcase comprises an accessory driveshaft 34 supported on the crankcase and having an axial internallysplined bore engaged with the driving element and gearing (24), 36, coupling the crank-shaft to the driveshaft, including a gear fixed on the driveshaft. Driveshaft 34 drives oppositely mounted oil and fuel pumps 26, 28 and similar driveshafts 38, 44 drive other accessories e.g. magnetos. The gears are press-fitted on the driveshafts and fixed by induction welding.
Patent GB-1265670-A (GB)
IPC: C01B13/11
Filed: 1969-10-23
Abstract: 1,265,670. Ozonizer. PUROMATIC Inc. 23 Oct., 1969 [29 Oct., 1968], No. 34715/71. Divided out of 1,265,669. Heading H5H. The disclosure is substantially the same as Specification 1,265,669, but the claims are directed to a glow discharge ozonizer comprising electrodesseparated by a dielectric, wherein one electrode has a catalytic surface of titanium, titanium alloy or titanium oxide.
Patent GB-1266462-A (GB)
IPC: A01N57/28
Filed: 1970-03-24
Abstract: 1,266,462. Phosphoroamidothioates. CHEVRON RESEARCH CO. 24 March, 1970 [25 March, 1969; 24 Feb., 1970], No. 14333/70. Heading C2P. The invention comprises compounds of Formula I where R is C 1-3  alkyl, R<SP>1</SP> is C 1-3  aliphatic hydrocarbyl, R<SP>2</SP> is hydrogen or C 1-3  alkyl, X is carbonyl or sulphonyl, Y is oxygen or sulphur and (a) when X is carbonyl, R<SP>3</SP> is hydrogen, C 1-18  alkyl, C 1-18 alkyl substituted by 1 to 4 fluorine, chlorine or bromine atoms, C 2-18  alkenyl, C 3-18  alkynyl, C 3-8  cycloalkyl, a heterocyclic radical containing 1 hetero atom (oxygen, sulphur or nitrogen) and 4 or 5 annular carbons, and a total of 4 to 8 carbons, C 2-12  alkoxyalkyl or alkylthioalkyl, C 1-12  alkoxy or alkylthio, phenyl, (optionally substituted by 1 or 2 C 1-3 alkyl or alkoxy groups, fluorine, chlorine or bromine atoms or nitro groups), styryl, phenylalkyl (C 1-3  alkyl), optionally substituted on the aromatic ring by fluorine, chlorine, bromine or nitro, phenoxyalkyl (C 13  alkyl), optionally substituted on the aromatic ring by fluorine, chlorine, bromine or nitro, thiophenoxyalkyl (C 13  alkyl) optionally substituted on the aromatic ring by fluorine, chlorine, bromine or nitro or C 1-3  mono-nitroalkyl or (b) when X is sulphonyl, R<SP>3</SP> is C 1-10  alkyl, C 3-8 cycloalkyl or phenyl, provided that when R is other than methyl, R<SP>1</SP> is methyl, R<SP>2</SP> is hydrogen, X is carbonyl and Y is oxygen, then R<SP>3</SP> is not phenyl, p-chlorophenyl or The compounds of Formula I, and compounds in which the above proviso does not apply may be prepared by various methods involving acylation of the amide group or amidation of a phosphorothiochloridate, and are used as pesticides either alone or as the active ingredients in conventional pesticidal compositions. 0,0 - Dialkyl - N - acylphosphoroamidothionates may be obtained by the reaction and may be converted to compounds of Formula I by reaction with R<SP>1</SP>#. S - Alkyl - S - aliphatic hydrocarbyl phosphorochloridoihioates may be obtained by the reaction sequence: S - Alkyl - S - aliphatic hydrocarbyl phosphoroamidothioates may be obtained from the chloridothioates by reaction with ammonia, and may be converted to compounds of Formula I by acylation.
Patent GB-1266960-A (GB)
IPC: B60G17/033
Filed: 1969-04-29
Abstract: 1,266,960. Adjustable height suspensions. V. LANGEN, [trading as LANGEN & CO.]. 29 April, 1969 [15 May, 1968], No. 21823/69. Heading B7D. A vehicle height control system maintains the vehicle body, irrespective of the load, at a constant preselectable height above one or more wheel-carrying members 1, 6, 7 by cylinders 10, 11, 16, 17 in series with hydro-pneumatic cushioning members 12, 13, 18, 19, the compression chambers of the cylinders being connectible to a pressure source 29 or to exhaust by one or more control valves 22 operated in response to variations in the suspension height by linkages 31, the linkages being adjustable by single-acting piston-cylinder assemblies 32 operated by the pressure of hydraulic fluid against a restoring spring 33, which pressure is kept constant by an adjustable pressure control valve 36 provided with a discharge R to exhaust. Additional pressure control valves may be incorporated in a supply pipe 35 to permit independent adjustment of the height of front and rear suspensions, or those of either side.
Patent GB-1290463-A (GB)
IPC: A23N12/00
Filed: 1971-06-01
Abstract: 1290463 Endless conveyers MAGNUSON ENGS Inc 1 June 1971 [15 June 1970] 18286/71 Heading B8A A conveyer for feeding potatoes beneath an infra-red unit 28 comprises rollers 22 supported between endless chains 20, the rollers, during a portion of their return idle run, passing adjacent a cleaning device comprising four radial blades 36. The blades are mounted on a vertical shaft 39 driven by a motor 49. During their run past the blades 36 the rollers 22 are caused to rotate by a sprocket 26 on each roller engaging a fixed chain 25. Both runs of the endless chains 20 are supported on tracks 23. In a modification, Fig. 4, a cleaning reel 67 has blades 68 which pass closely beneath conveyer rollers 22a which rotate while following an arcuate path above the reel 67. Snubbing sprockets 63 aid in guiding the chains which support the rollers 22a.
Patent GB-1297171-A (GB)
IPC: C08L93/00
Filed: 1970-07-30
Abstract: 1297171 Photographic materials and stripping films KEUFFEL & ESSER Co 30 July 1970 [31 July 1969] 36844/70 Heading G2C A light-sensitive composition comprises (a) a limed derivative of resin or a resin derivative and (b) a light-sensitive organic halogen and/or a light-sensitive dye which is oxidised or reduced on exposure. The composition may be coated on a support and imagewise exposed and developed with water or aqueous alkali to produce a positive resist. Alternatively, the composition may be coated on a polyvinyl alcohol or a polyamide layer which may contain a dye, the polyamide layer being on a polyester support. The material is imagewise exposed and developed as above and then developed with sodium salicylate to remove the exposed polyamide layer. The polyester may be stripped off leaving a mask.
Patent GB-1301544-A (GB)
IPC: F41A21/30
Filed: 1970-03-16
Abstract: 1301544 Silencers ENVIRONMENTAL INDUSTRIES 16 March 1970 12548/70 Heading F3C [Also in Division F1] A silencer for guns or the exhaust of motor vehicles comprises aligned suppression and exit expansion chambers and a plurality of helical elements 16, 17, 18, 19, 20 co-axially disposed in the suppression chamber, adjacent elements being of opposite hands. A passageway 13 is provided through the helical elements and a plurality of axially spaced ports 21 to 30 in the wall of the passageway communicate with the outer surfaces helical elements. In the construction shown the silencer has a housing element 3, end elements 5, 32 and partitions 9, 14 forming the aligned chambers and an entry expansion chamber. The aperture 11 through the partition 9 is in the form of a stepped bore 12, and the facing surfaces of the partition 14 and end element 32 are dished. The housing element 3 on its outer surface is provided with ridges, the width of the ridges and the width of the grooves formed thereby being non-uniform.
Patent GB-1307532-A (GB)
Title: Polymer treating process
IPC: C09K23/00
Filed: 1969-08-18
Abstract: 1307532 Polymer treating process IMPERIAL CHEMICAL INDUSTRIES Ltd 28 July 1970 [18 Aug 1969] 41060/69 Heading D1P A process for the application of treating agents to polymeric materials comprises the steps in succession of treating the polymeric material with a stable deflocculated dispersion in an organic liquid of a treating agent in fine particle size i.e. less than 25 microns and subsequently removing the organic liquid. Examples of the polymeric material are natural cellulosic fibres, regenerated cellulose fibres, cellulosic esters, natural protein fibres, synthetic polyamides, polyesters, polyurethanes and polyolefins. The treating agent may be a fluorescent or optical brightening agent e.g. sodium salts of bis-triazinylaminostilbene disulphonic acids, flame proofing or flame retarding agents e.g. antimony trioxide of mixtures of boric acid and borax, latent acid catalysts such as are used to cure the resins and to confer anticrease properties e.g. zinc and magnesium chlorides. Other treating agents which may be employed are antistatic and soil prevention and release agents, e.g. condensates of ethylene oxide with polyamides and crystallisable polyesters containing polyoxyalkene groups, textile softening agents e.g. fatty quaternary ammonium salts and desizing agents e.g. enzyme preparations. The dispersion of the treating agent in the organic liquid contains as deflocculating agent a polyurea which is essentially free from basic amino groups and which contains at least two urea groups and at least two alkyl, alkyenyl or alkapolyenyl groups each of which contains at least 8 carbon atoms.
Patent GB-1308585-A (GB)
Title: Printing machines incorporating hydraulic drive arrangements
IPC: B41F5/06
Filed: 1971-11-04
Abstract: 1308585 Driving arrangements in printing machines POLYGRAPH LEIPZIG VEB 4 Nov 1971 51336/71 Heading B6C A multicolour rotary press comprising a plurality of printing units is driven by one or more hydraulic motors which are supplied with fluid from one or more motor driven pump means through a piping system incorporating various control valves. The drive arrangements are particularly applicable to machines in which the printing units are coupled by respective gear trains to respective hydraulic motors Fig. 1 of the drawing shows three variants of the arrangements. In each case an electric motor 1 is connected to pump means 2 connected to at least one hydraulic motor via a control unit 3. In the central portion of the Figure hydraulic motor 4 is connected to three printing units 6 whilst in the upper portion of the Figure each unit 6 is driven by the associated motor 4 the latter being coupled in parallel in the hydraulic circuit. In the third variant, shown in the lower portion, the motors are coupled in series. The hydraulic circuit is such that fluid may be directed selectively through either each hydraulic motor or through a by-pass circuit not including any said motor.
Patent GB-1310895-A (GB)
Title: Childs toy
IPC: A63H17/26
Filed: 1969-07-21
Abstract: 1310895 Toy vehicles HILARY PAGE "SENSIBLE" TOYS Ltd 21 July 1970 [21 July 1969] 36492/69 Heading A6S A toy vehicle comprises a wheeled platform having a central V-shaped depression 10a perpendicular to the axis of the wheels and a V- shaped depression 10b on each side of the central depression, the surface of the platform being provided by coplanar horizontal surfaces 10c between the depressions and horizontal extensions 10d provided on the outer edge of each of the side depressions, the platform also having means 11 for securing an expansible band 12 thereto at opposite sides to hold an article placed on the platform and also being provided with a stud (15), Fig. 1 (not shown), extending from at least one end to enable the vehicle to be pulled or pushed. In the illustrated embodiment the side extensions have recesses 11 in their front and rear edges for attachment of the expansible band 12 and studs (15), &c attached to both front and rear of the vehicle so that several units can be coupled together.
Patent GB-1312777-A (GB)
Title: Moisture determination apparatus
IPC: G01N27/22
Filed: 1969-10-14
Abstract: 1312777 Measuring moisture content ILFORD Ltd 6 Nov 1970 [14 Oct 1969] 50407/69 Heading G1N The moisture content of web material or of a coating on web material is measured by measuring the capacitance between a live electrode 4, not touching the web or coating, and two earthed rotating electrodes 5, 6 which support the web. The capacitance may be connected in an r.f. bridge circuit, such as that in Specification 929014. The bridge may be servo-balanced. The rollers 5, 6 are connected to Earth via silver contacts (not shown). The electrodes may be covered by felt or a belt driven at the same speed as the web.
Patent GB-1326032-A (GB)
Title: Fluidflow control taps and valves
IPC: F16K1/02
Filed: 1971-04-19
Abstract: 1326032 Valves IMI OPELLA Ltd 19 April 1971 [5 March 1970] 10681/70 Heading F2V A valve comprises a body 10 having a screwthreaded bore 15, a head nut 17 of plastics material screwed into the bore, an annular sealing washer 32 interposed between the nut and the body, and a ring 33 axially located on the nut by frictional engagement with the washer. The nut may be made from acetal copolymer and receives a member 28 which is in screw-threaded engagement with the valve spindle 25 and may be rotated by a knob 30. The ring 33 and body 10 may be of brass. Alternatively, the ring may be formed integrally with the nut. The washer 32 is of rubber.
Patent GB-1332009-A (GB)
Title: Containers discharged by gas under pressure
IPC: A62C13/00
Filed: 1972-04-18
Abstract: 1332009 Powder fire extinguishers CHUBB FIRE SECURITY Ltd 18 April 1972 [5 May 1971] 13312/71 Heading A5A In fire-extinguishing apparatus comprising a container 16 of extinguishant discharged by a separate source of pressurised gas 15, the gas flow into 16 is controlled by a valve responsive to the container presure, and compensating means make the valve action independent of the incoming gas pressure. The valve is threaded into the top of 16 and has inlet port 11 connected to gas bottle 15 and outlet port 12 leading to ports 17 in the powdered extinguishant; the latter is thereby discharged through pipe 18. The valve comprises socket 1 in which is mounted housing 3 for closure member 4 on stem 5. The foot of 5 is threaded into piston 6 slidable in cavity 7 which is vented at 8 to atmosphere. Spring 9 surrounding stem 5 bears on piston 6 urging valve closure member 4 downwards and off valve seat 10, to open up a passage between inlet 11 and outlet 12. The spring action is countered by container pressure on the underside of piston 6, and is overcome when the latter pressure reaches a predetermined value. The valve then closes. Stem 13 extending upwards from 4 carries piston 14 of the same diameter as seat 10. Thus when the valve is open there is equal pressure on piston 14 and member 4 and operation of the valve depends solely on container pressure. The arrangement enables a true gas, e.g. compressed N 2 , to be used. CO 2  can also be used.
Patent GB-1332176-A (GB)
Title: Lighting control apparatus
IPC: H05B37/02
Filed: 1971-11-23
Abstract: 1332176 Lighting control DYNAMIC TECHNOLOGY Ltd 23 Nov 1971 [7 Sept 1970] 42835/70 Heading G4H Lighting control apparatus for controlling the brightness of a group of lamps comprises a main store 10 for storing lighting "plots" containing brightness control information for each lamp in the group, one or more operation a stores 12, means for transferringal lighting plot between the main store 10 and an operational store 12, means for controlling the brightness of a lamp in accordance with the control information stored in that operational store, and means 16, 18 for changing the information relating to an individual lamp in that store. As shown, 128 plots of 256 lamps are stored in main store 10, a particular plot being addressed by means of a decimal key control console 46, and a 5-bit binary code indicating one of 32 brightness levels for each lamp. The plot in use is in store A, Fig. 2 and the next plot required is in store B. To "fade" from A to B, the outputs therefrom are fed to analogue, digital or hybrid multipliers 20, 22 to be multiplied by (1-Z) and Z respectively and then to an adder to yield an output (1-Z)A + ZB which is fed in digital form to a sample and hold circuit 48 (here an array of capacitors) which stores brightness control information for staticized control of the lamp dimmers. The multiplication factor Z is controlledly varied from 0 to 1, and is determined by integrators 24, 26 according as A#B or directly from a set of input levers (not shown). Each of the 256 lamps in a stored plot is sampled in turn by binary decoders 44, 45, 52, Fig. 3 fed from a binary counter 56 driven by an oscillator 54. The information in a store relating to an individual lamp is changed by means of a control 16 (digital shaft encoder or manually operated lever) and is gated into the scanning cycle by a pulse which is delayed by an amount corresponding to the position of the lamp in the cycle: a decimal counter 50 feeds hundreds, tens and units pulses to a circuit (Fig. 5) which generates corresponding partial time delays determined by the setting of a lamp selector on the control console. The selection of a lamp for individual control allows the original brightness thereof to be displayed for reference, e.g. by means of a displacement over a calibrated scale of the above-mentioned manually operated lever. The brightness information contained in stores A, B can be displayed on the control console by means of an array of differently coloured pairs of bulbs. An indication of which lamps are switched on (together with brightness indication) in a store may be produced by means of a CRT, and a colour CRT may be used to provide differently coloured displays for different stores; in these cases the CRT could be used with an array of photo-cells or a joy-stick control to effect individual lamp selection. It is possible to utilize only one store 12 (Fig. 1 not shown) or to use more than one pair of stores A, B in which case the outputs from each adder are combined by a "higher brightness level takes precedence" method for each lamp.
Patent GB-1334228-A (GB)
Title: Window lift control systems
IPC: E05F15/16
Filed: 1969-12-30
Abstract: 1334228 Touch responsive systems JOSEPH LUCAS (INDUSTRIES) Ltd 9 Dec 1970 [30 Dec 1969] 63230/69 Heading G1N [Also in Division H2] In a system for raising an lowering a window in a vehicle by a D.C. (permanent magnet field) motor 11, a control circuit is provided which, when energized due to the top edge of the window being touched, prevents the window being raised. The control circuit comprises either a stop or a reverse relay 22, 23 which is energized via a thyristor 46 whose trigger is controlled by a field effect transistor 41 connected to the metallized top edge 38 of the window. A transistor inverter circuit 26 is energized when window control switch 12 is in the "raise" position and supplies energy to a loop aerial 37 within the vehicle. A person touching the metallized edge couples this energy to the F.E.T., thereby causing the relay to be energized and the motor stopped or reversed.