baber/WOPTO huggingface dataset:
Patent GB-1140567-A (GB)
Abstract: 1,140,567. Ignition systems. ROTAX Ltd. Sept. 12, 1966 [Sept. 27, 1965; Oct.22, 1965], Nos. 41075/65 and 44768/65. Heading F1B. Spark ignition apparatus comprises in combination first and second capacitors 5, 6 a pair of rectifier means 3, 4 through which the capacitors can be charged from a source of current, means for connecting the first capacitor to a pair of output terminals 17, 18, so that the capacitor can be discharged through an ignition plug 9 connected across the terminals, when the voltage across the first capacitor attains a predetermined value, triggerable mean 11 for connecting the second capacitor to the pair of output terminals, a further capacitor 10, means through which the further capacitor is charged when the first capacitor has discharged, a transformer 12 having a primary winding and a secondary winding, the secondary winding being connected to the triggerable means 11 so that when a voltage is induced across the secondary winding the triggerable means will connect the second capacitor to the output terminals and means responsive to the voltage across the further capacitor and arranged to cause a flow of current through the primary winding when the voltage across the further capacitor exceeds a predetermined value. The ignition plug 9 may be of the surface discharge type. The spark gap 13 may be replaced by a diode or a Zener diode or an avalanche diode. The means responsive to the voltage across the further capacitor may include a potentiometer network.
Patent GB-1225389-A (GB)
IPC: G06F3/09
Filed: 1968-05-03
Abstract: 1,225,389. Control of D.C. motors. BURROUGHS CORP. 3 May, 1968, No. 21183/68. Heading H2J. [Also in Divisions G3 and G4] A D.C. printed circuit motor for driving a printing element carrier is controlled in direction and speed by a transistorized circuit as shown in Fig. 7. A signal from a direction control flip-flop (not shown) and which is applied to either input 702 or input 704 controls the direction of current from source 712 through the armature 700 of the motor. A differential amplifier 734, 736 having inputs from opposite ends of a resistor 738 through which some of the armature current flows provides a feed-back to the input circuits to maintain armature current constant. To control the speed of the motor at either a fast or a slow speed, an oscillator (not shown) capable of generating pulses at two different frequencies is provided. A photo-cell picks up light pulses as the motor rotates in proportion to the speed of the motor and their frequency is compared with the frequency provided by the oscillator as selected by a speed control flip-flop (not shown). As the speed of rotation exceeds the selected speed, a switch 744 is opened to disconnect power from the motor.
Patent GB-1228078-A (GB)
IPC: H02M1/08
Filed: 1969-07-08
Abstract: 1,228,078. Static converters. UNITED AIRCRAFT CORP. 8 July, 1969 [21 Aug., 1968], No. 34252/69. Heading H2F. [Also in Division G3] The output voltage of a 3 phase A.C./D.C. rectifier bridge (of thyristors or transistors) supplied from an aircraft alternator, is varied by selectively varying the number of rectifier elements used to suit a given operating condition. Depending upon whether the output voltage exceeds or is less than a reference voltage a certain utilization mode is selected by a mode defining logic circuit (Fig. 4, not shown). Thus, as illustrated in Fig. 3, for maximum D.C. output voltage all six rectifiers are used, in proper sequence (mode 6), so that six halfwaves/cycle of the A.C. supply pass through the rectifiers to the D.C. output. In mode 5 only five rectifiers are used and a lower output voltage is obtained since only four half-waves/cycle of the A.C. input appear in the D.C. output-and so on. In mode 1 no rectifiers are used and the output voltage is zero. Control circuitry.-Each rectifier element conducts for substantially a full half-cycle at a time and the control circuitry ensures that there is no forward voltage across the respective rectifier when a gate signal is first applied to it so that the rectifier will be turned ON and begin to conduct only when its anode / cathode voltage is changing from negative through zero to positive. Thereby step voltage changes which would result in radio frequency interference are avoided. The gate signal to a rectifier may be applied continuously during the conducting period of the rectifier when the anode is positive with respect to its cathode. In order to determine the periods when gate signals are permitted to be applied to a rectifier, the voltages of the various phases of the alternator are compared, at various points in time, in a logic circuit (time-point generator), Fig. 5 (not shown), which produces digital function outputs. These outputs together with mode definition signals from a circuit, Fig. 4 (not shown), are fed to a "select generator", Fig. 6 (not shown), which is an arrangement of logic circuits wherein a plurality of varying conditions may set latches (92-99) one latch corresponding to each rectifier. The select generator produces a signal saying when a particular rectifier should be gated and a gate signal generating circuit responds to "select generator" signal. Gate signal generator.-Each rectifier has an individual gate signal generator. As shown, Fig. 7, each generator comprises a gated transformer 102 which applies three-phase power to a rectifier bridge 104 the output of which is closely controlled by a Zener diode 134 and applied to turn ON a respective rectifier A, B, C, D, E or F. The transformer(s) 102 is gated by a signal produced by the respective latch in the select generator. The latch signal for rectifier A for instance causes a transistor 114 to conduct and provide a return path so that current from a three-phase step-down transformer can pass through the primaries of transformer 102, diodes 116-118, transistor 114 and then through diodes 119-121.
Patent GB-1229515-A (GB)
IPC: F16K5/06
Filed: 1969-08-06
Abstract: 1,229,515. Valves. R. YONEDA. 6 Aug., 1969, No. 39478/69. Heading F2V. A seat ring for a ball valve comprises an annulus 21 of natural or synthetic rubber with an iron core 22 and a PTFE coating or lamination 23 on its ball engaging face. The core may be of square, circular or other cross-section and is provided with a series of circumferentially spaced holes 22<SP>1</SP> to increase the bond with annulus 21.
Patent GB-1229662-A (GB)
IPC: G03F7/029
Filed: 1968-08-30
Abstract: 1,229,662. Photopolymerized heterocyclic compounds. KALLE A.G. 30 Aug., 1968 [31 Aug., 1967],. No. 41601/68. Heading C3P. [Also in Division G2] A self-supporting or supported photo-polymerizable layer comprises a C-vinyl monomer of formula in which R 1  and R 2  are a benzene or pyridine ring which may be substituted or together form a benzene or pyridine ring, R 3  is -CH=CH 2  or -C 6 H 4 -CH=CH 2  and R 4  is same as R 3  or a benzene or pyridine ring and Y represents NH, S, Se or O and as photoinitiator, an organic halogen compound. Specified monomers are wherein R 1  is phenyl, dialkylaminophenyl and pyridyl, R 2  is phenyl, pyridyl, chlorophenyl, or dialkylaminophenyl or R 1  and R 2  together complete a benzene or pyridine ring, R 3  is vinyl or vinylphenylene and R 4  is vinylphenylene. The layer preferably contains a binder such as styrene/maleic anhydride copolymer, a polyacrylic acid ester, an epoxy resin or a novolak and may contain a cross-linking agent, e.g. a compound containing two vinyl groups. The materials are used in photographic processes to produce printing plates (see Division G2). The organic halogen compounds are preferably of formula wherein X is chlorine, bromine or iodine, R 5  to R 7  are hydrogen, chlorine, bromine, iodine, alkyl, aryl, aralkyl, alkenyl or a heterocyclic group.
Patent GB-1230060-A (GB)
IPC: E21B17/07
Filed: 1970-03-25
Abstract: 1,230,060. Boring earth &c. BOSSCO, Inc. 25 March, 1970, No. 14593/70. Heading E1F. [Also in Division F2] A shock absorber for a drill string comprises: a housing 5; a mandrel 7 axially slidable in the housing, adapted to be connected to a drill bit 4, and carrying seals 19, 28 co-operating with the housing to form a closed chamber within the housing; and a check valve assembly 12 within the chamber. The chamber is filled with liquid and has upper and lower parts connected by a bore 36. The assembly 12 is located below the bore and has ports (not shown) with adjustable chokes for passage of liquid in either direction and ports 37 with check valves 40 permitting downward flow of liquid only. Relative rotation between mandrel and housing is prevented by ball bearings 52 engaging a groove 53 in the mandrel, teeth 16, 17 also engaging when the mandrel is fully retracted to couple mandrel and housing. The seals each comprise an elastic sleeve 20 having peripheral slits 27 and held in place by thrust rings 30 of hinged two-part construction.
Patent GB-1230386-A (GB)
IPC: B60P1/64
Filed: 1968-07-19
Abstract: 1,230,386. Trailers; bumpers. CRANE FRUEHAUF TRAILERS Ltd. 19 July, 1968 [19 July, 1967], No. 34515/68. Headings B7B, B7D and B7J. Semi-trailers 11, 12 each comprise a frame 13 supported by a longitudinally adjustable wheeled dolly 15 and landing gear 14, said frames being provided at their ends with cross members 20 which retain housings 19 apertured at 21, there extending from the apertures on the front of trailer 11, pins 24 which are adapted to be received in the apertures at the rear of trailer 12 to connect said trailers in end-to-end relationship. The pins are retained in the apertures by means of U-shaped yokes 29, Fig. 3, the prongs of which pass through transverse vertically spaced apertures in sleeves 26, 21 and into diametrically opposed slots in the pins. The yokes retaining the pins on the forward end of trailer 12 are held in place by pins 55, but the yokes retaining the pins in the rear end of trailer 11 are moved into place by a linkage system operated by the forward end of the pins 24 contacting link 45. The latter yokes may be manually withdrawn and in a further embodiment manually moved into place. When the tractor 18 is backed up to trailer 11 and the king-pin contacted, the landing gear 14 is automatically raised. Similarly when trailer 11 is backed up to trailer 12, a slide plate on the rear end of trailer 11 contacts the king-pin of trailer 12 causing the landing gear thereof to be raised. When not required the slide plate can be moved to an out-of-use position. By withdrawing pin 16 and manoevring the tractor and trailer as a single unit, dollies 15 can be positioned in tandem approximate the centre of trailer 12. Bumper 17 comprises a bar 77 supported from member 76 which has pins 78 retained in channel members 79. The bumper is locked in its in-use-position by pins 84 passing through tongues which protrude from the members 79 through frame member 81. On its outof-use position the bumper is arranged horizontally within the trailer frame with the pins 78 retained under a plate 91.
Patent GB-1230452-A (GB)
IPC: H04Q3/54
Filed: 1968-05-06
Abstract: 1,230,452. Automatic exchange systems. P. LUCAS, J. DONDOUX, J. DUQUESNE, and J. M. LAPREVOTE. 6 May, 1968 [5 May, 1967], No. 21269/68. Heading H4K. Time division multiplex go and return order wire signalling is employed between a main exchange U and a first rank satellite S 0  and between the first rank satellite and a second rank of satellites S 1 , S 2 , S 3 , each satellite having a particular time slot on the order wire highways. Each time slot comprises a channel identifying label, functional data, error checking digits and a portion for an acknowledgement code indicating correct reception of a time slot message or demanding its repeated transmission. For the system illustrated, four successive time slots comprise a system cycle; link SOU carrying all time slots but first rank satellite S 0  switching the time slots successively to its own control circuit and to the second rank satellites S 1 , S 2  and S 3  in turn. Channel-by-channel signalling is used between S 0  and S 3 , a multiplex/dimultiplex set Ad (Fig. 7, not shown) providing conversion to and from the order wire highway SOU. Code-checking at each exchange results in the formulation of an acknowledgement code which, for transmission from the satellites is added to the end of the order wire signals in the respective time slots of the satellites. At the main exchange U, however, the acknowledgement signals can only be formed one time slot in arrear so that the first rank satellite switches each time slot to the second rank satellites in two portions; the major portion being switched to the second rank satellite associated with the time slot, and the residual portion comprising an acknowledgement portion being switched to the second rank satellite associated with the preceeding time slot. Block schematics are given, Figs. 4, 5 and 6, not shown, for the order wire receiver/senders at the main, first rank, and second rank exchangers.
Patent GB-1231475-A (GB)
IPC: B29D30/72
Filed: 1968-07-16
Abstract: 1,231,475. Tyre sidewalls. DUNLOP CO. Ltd. 16 July, 1968 [18 July, 1967], No. 33741/68. Heading B7C. A method of making a pneumatic tyre with at least one decorative sidewall comprises applying to a carcass 1 mounted on a former the sidewalls 10 and tread 11, at least one of the sidewalls 10 having a circumferential groove 12 cut into it, inserting into this groove a decorative strip 13 of the same width, shaping the tyre to toroidal form and finally vulcanizing it. In the vulcanized form of the tyre, the inserted strip has a different colour from the rest of the tyre side-wall and, if more than one such strip is employed, they may be of different colours. The grooves may be cut either before or after the sidewall is applied to the carcass, and the tread and sidewall strips may either be integral with the carcass or added separately.
Patent GB-1231898-A (GB)
IPC: B65G13/00
Filed: 1968-12-17
Abstract: 1,231,898. Roller conveyers. ATLAS COPCO A.B. 17 Dec., 1968 [29 Dec., 1967], No. 59848/68. Heading B8A. [Also in Division F1] Driven rollers for a roller conveyer comprise a drum 10 mounted at one end on a shaft 36 journalled to a frame 33 and journalled at the other end to a casing of a pressurized air-driven sliding vane motor 11 non-rotatably mounted to the frame 32. The motor 11 drives planetary gear units 13, 14 which are coupled, by a shaft 23, to a member 24 secured to the drum to thereby effect rotation of the drum. The shaft 36 may mount a sprocket 22, of a chain-andsprocket arrangement, to drive further conveyer rollers not fitted with motors. The inlet ports (15), Fig. 4 (not shown), of the motor 11 may have variable orifices to control the speed of the motor. In an alternative embodiment, Fig. 6 (not shown), the said one end of the drum is journalled on a shaft (40) non-rotatably mounted on the frame (32).
Patent GB-1232767-A (GB)
IPC: G21C1/08
Filed: 1970-04-21
Abstract: 1,232,767. Nuclear power plant. SULZER BROS. Ltd. 21 April, 1970 [21 April, 1969], No. 19036/70. Heading G6C. In a boiling light water nuclear reactor, circulation of the water is effected by pumps connected to turbines driven by the flow of reactor feed water. The reactor core, 2, is cooled by the flow of water from the pumps 13, through the ring train, 8, turbines 6, ring main 11, pipe 14 into the pressure vessel, 3. The coolant circulator pumps 4 are driven by the turbines. The pumps 13 are fed with condensate from the turbine 16 driven by steam from the vessel 3. In an alternative form, the turbines 6 are mounted on the upper surface of 3 and discharge directly into it.
Patent GB-1233236-A (GB)
IPC: F16D7/00
Filed: 1968-11-29
Abstract: 1,233,236. Feeding sheets. INTERNATIONAL BUSINESS MACHINES CORP. 29 Nov., 1968 [18 Jan., 1968], No. 56885/68. Heading B8R. [Also in Division F2] An intermittent feed for punched cards 10 may include a ball bearing which is subjected to axial loading (e.g. by a nut 40 acting on inner races of bearings with outer races spaced at 36) to give a limited torque carrying capacity (e.g. from a toothed belt drive 26, 28 to wheels 14, 20) which may be overcome (e.g. by engaging a pawl 18 with a tooth of the wheel 20) to prevent rotation. The wheel 14 may co-operate with a wheel 12 to forward the punched cards 10 separated from the bottom of a stack by a picker knife (not shown) past a reading head 16.
Patent GB-1234582-A (GB)
IPC: B65B51/02
Filed: 1968-09-17
Abstract: 1,234,582. Coating apparatus. G.A.F. CORP. 17 Sept., 1968 [22 Sept., 1967], No. 44208/68. Heading B2L. A container 10 for solvent such as one containing 55 parts chlorothene, 15 parts methylene chloric, 5 parts isopropyl alcohol and 25 parts petroleum ether, is supported by a column 14 and is fitted in its top 18 and bottom 26 with plugs 32 and 40 respectively. Plug 40 is formed with two vertical blind bores 42 which communicate at their upper ends with the interior of container 10 and at their lower ends with horizontal open passages 44. Two rods 52, which slideably pass through respective bores 48 in plug 32 are biased downwardly by respective springs 70 sealingly engaging their pointed lower ends with the chamfered upper ends 46 of bores 42. The upper ends of rods 52 are interconnected by a yoke 54 pivoted by a pin 60 to the armature of a solenoid 16. Rods 52 slide through bores 68 in a block 66 rigid with a rod 62 fixed in the plugs 32 and 42. A fixed structure 20, adapted to support a film cartridge 87 made from polystyrene plastics, comprises two upper nozzles 90 and two lower nozzles 82 connected by respective ducts 94 to the passages 44. A loaded cartridge 87 is positioned on structure 20 to engage a microswitch contact plunger 96, whereby solenoid 16 is energised via an electric timer to raise the rods 52 for a predetermined period of time e.g. 2/10ths of a second. A predetermined quantity of liquid thereby flows from nozzles 90, 92 along the edges of the cartridge to seal the latter.
Patent GB-1251057-A (GB)
IPC: B66B7/02
Filed: 1968-11-28
Abstract: 1,251,057. Load-guiding columns. DEMAGZUG G.m.b.H. 28 Nov., 1968 [17 Jan., 1968], No. 56604/68. Heading B8H. The flanges 1 of a U-section upright are connected by a sheet metal member 3 and have secured thereto guide rails 2 formed with bearing surfaces 2a which are machined exactly true to gauge after the member 3 has been welded to the upright. The rails 2 are secured, by welding or by screws, to the upright flanges 1 at positions on or adjacent the centroidal plane S of the upright.
Patent GB-1256660-A (GB)
IPC: D06L3/12
Filed: 1970-09-14
Abstract: 1,256,660. Whitening synthetic polyamide materials. FARBENFABRIKEN BAYER AG. 14 Sept., 1970 [13 Sept., 1969], No. 43875/70. Heading DIP.  A process for the continuous whitening of a textile material of a synthetic polyamide by means of an anionic or disperse brightening agent, which comprises applying to the material a padding liquor containing, in addition to the optical brightening agent, a mixture which has a pH value of 1 to 11 and are prepared from (a) an amine of formula; in which R 1  and R 2 , independently of each other, represents H, a C 1  - C 4  alkyl gp, the grouping -A-OH wherein A is a C 2 -C 4  alkylene radical or together form a morpholine ring 1 and R 3  is a C 1 -C 4  alkyl group or the grouping -A-OH wherein A is as above, with the proviso that at least one of the radicals R 1 , R 2  and R 3  represents the grouping -A-OH, or two of the radicals together with the nitrogen atom in the formula given above form a morpholine ring; and from (b) sulphuric acid, phosphoric acid, polyphosphoric acid, toluene-sulphonic acid or chloracetic acid. Examples of amines of formula I are mono-, di-and trialkanolamines and N-substituted morpholines. The mixture of the two components is the amines of formula I and the acids are mixed in such a proportion that the pH is 1 to 11 and preferably 3.5 to 6. Generally 1 to 15g and preferably 5 to 10g of mixture per litre of padding liquor is used. The brightening agent used may be a bistriazolyl-stilbene-mono or disulphonic acid, a 4-triazolyl-4-amino-stilbene-mono or disulphonic acid, or a diphenyl-pyrazoline. Examples of the synthetic polyamide used are polyhexamethylenediamine adiphate, poly-e-caprolactam and poly-#-amino undecanoic acid. If desired, the padding liquors may also contain commercial dispersing agents, e.g. alkyl polyglycol ethers and alkyl sulphonates. The process is usually carried out by impregnating the textile materials, with the whitening liquors containing the mixtures, squeezing the materials to a liquor absorption of 70%, drying and subsequently fixing the whitening agent on the textile materials by heating at 190-210‹C for 20 secs.
Patent GB-1257116-A (GB)
IPC: H03K19/013
Filed: 1969-12-03
Abstract: 1,257,116. Transistor logic circuits. P. CONRUYT, and J. P. SERRAND. 3 Dec., 1969 [3 Dec., 1968], No. 68981/69. Heading H3T. The input transistors 11, 12, 13 of a NOR gate have a common collector resistor 151 (or a common emitter resistor Fig. 6, not shown) connected through a transmission line 20 to the base bias resistor of an output transistor 14, these resistors being equal to the resistive component of the line characteristic impedance. Where the input transistors have a common emitter resistor connected to the line, the output is taken from the collector of the output transistor (14). Where the input transistors have a common collector resistor, 151, an output emitter follower is used. A delay line 19 may be included, which in addition to the line 20 compensates for delay times in a system using a plurality of the gates. The line 20 may be coaxial, bifilar or twin-lead; and the delay line 19 is two conductors arranged parallel in a semiconductor substrate. In a further embodiment (Fig. 7, not shown) a further input transistor (10) having the same common emitter resistor (K) and receiving a base reference voltage (V r ) provides at its own collector resistor (251) the inverse of the function at the common collectors of the other input transistors, and supplies this over a separate transmission line (20 2 ) to a separate output transistor (14 3 ).
Patent GB-1257526-A (GB)
IPC: G11B5/02
Filed: 1969-02-26
Abstract: 1,257,526. Recording and playback; local circuits. RCA CORPORATION. 26 Feb., 1969 [15 March, 1968], No. 10176/69. Heading G5R. A transducer 20 reads, in forward or reverse direction, data recorded on a polarizable medium 12 and produces an undesired phase shift in a direction determined by the reading direction; this is opposed by a phase shifter 50 which shifts the phase of the forward readout signal in one sense and of the reverse readout signal in the opposite sense. As shown, a common reactive element 62 is connected to one or other resistive branch 64 or 66 under the control of a switching circuit 80 according to the direction of movement of the record medium 12.