baber/WOPTO huggingface dataset:
Patent GB-1203254-A (GB)
Title: Improved ring counter
IPC: H03K23/44
Filed: 1967-08-23
Abstract: 1,203,254. Electronic counters. SHARP K.K. 23 Aug., 1967 [1 Sept., 1966], No. 38776/67. Heading G4A. [Also in Division H3] The first stage X 1  of a field-effect transistor ring counter is set to start a new cycle by a gate dependent on the condition of the penultimate stage. As shown in Fig. 1 a "1" condition is stepped along the counter by clock pulses and all the stages except the last feed an OR gate G, the output of which is inverted at I before feeding the first stage. Therefore, while any of stages X 1 -X n-1  is at "1" the inverter I is ineffective, but when X n  goes to "1" then gate G produces "0" and I produces "1" to start the next cycle. Each stage, Fig. 2, has M.O.S. field-effect transistors of which T21-T23 operate as memory elements and T24-T26 as switches responsive to clock pulses # 1 , # 2 , stepping occurring in response to each pair of clock pulses (Fig. 3, not shown). A +ve-going input to T24 is connected by pulse # 1  into +ve-going and -ve-going pulses at points A, B, respectively and inverted at points C, D, respectively by pulse # 2 . The resulting signal at D acts as input to the next stage. T26 provides +ve feed-back in response to the next # 1  pulse to counteract leakage and restore the signal to its previous strength. In a modification, Fig. 5, the gate G comprises field-effect transistors T31-T34. T31, T32 form an AND gate, controlled by T33 as to operate to the presence of 0, 1 in the stages X n-1 , X n , T34 feeding an inverted output to the first stage. Initially the input to the first stage is earthed until all stages are at 1. When earth is removed the stages are set to 0 cumulatively until normal ring operation is effected. In a further modification (Fig. 6, not shown) in which the counter has one stage only at 0, the gate G operates as an OR gate with two field-effect transistors (T42, T43) in series, that controlled by the penultimate stage being preceded by an inverter (T41). The delay memory element may be modified in self-explanatory manner, Figs. 7A-7C, and one, two or three clock pulse streams may be used.
Patent GB-1424054-A (GB)
Title: Helicopter load carrying system including a jettison device
IPC: B60N3/04
Filed: 1973-08-16
Abstract: 1424054 A helicopter load-carrying system UNITED AIRCRAFT CORP 16 Aug 1973 [30 Aug 1972] 38813/73 Heading F3C A helicopter load-carrying system including a jettison device, and comprising supporting means and a cable for retrieving the loadsupporting means for storage in the helicopter, the jettison device including an explosivelyoperated device and means actuated by the explosively-operated device for simultaneously jettisoning the load-supporting means and severing the cable. The jettison device has a housing 10, Fig. 1, having a chamber 24 with a piston 30 therein and a chamber 26 with jaws 40, 42 positioned therein to retain the loadsupporting means, and has a cable-guide 22 through which passes the cable 20, having one end thereof connected to a winch (not shown) in the helicopter fuselage and the other end to a pendant 14 carrying a hook (not shown), the cable-guide also having a chamber 82 containing a cutter-piston 86 which is retained by a cotter-pin 90. The piston 30 has a piston-rod 34 which passes through a bore 28 and is provided with a collar 36. The jaws 40, 42 have flanges 44, 46 which are bevelled and engage bevel 48 of the collar 36, have shoulders 50, 52 which are bevelled and engage a shoulder 54 in the chamber 26, have lands 56, 58 which contact the wall of the chamber 26, and have abutments 60, 62 which engage shoulders 64, 66 on an end portion 38 of a pendant attachement fitting 18 which is connected by a pin 16 to the pendant 14. Lugs 68, 70, 72 and 74, Fig. 3, are provided on the housing 10, the lugs 68, 72 contact surface 76 on the fitting 18 and lugs 70, 74 contact surface 78 on the fitting 18 to prevent relative rotation between the latter and the housing 10. The piston 30, piston-rod 34 and jaws 40, 42 are retained in position by a cotter-pin 80, Fig. 1. The chamber 24 is connected by a passage 94, with an explosive charge 92, Fig. 5, which is provided with electrical wires 96, and the chamber 82, Fig. 1, of the cable guide 22 connects to the chamber 24 through a bore 84. In use emergency release is effected by actuating the cartridge 92 thus causing pressure to move the piston 30 and shear the pin 80, so that the fitting 18 is released as shown in Fig. 4, and causing pressure to move the cutter-piston 86, Fig. 1, towards a striker plug 88, thus shearing the pin 90 and severing the cable 20.
Patent GB-1317965-A (GB)
Title: Treatment of impure hydrogen
IPC: C07C1/00
Filed: 1970-08-12
Abstract: 1317965 Treatment of hydrogen containing impurities BADISCHE ANILIN- & SODAFABRIK AG 12 Aug 1970 [13 Aug 1969] 38839/70 Heading C1A Impure hydrogen obtained in the dehydrogenation of an organic compound containing carbon, hydrogen and optionally oxygen atoms and which contains besides the starting material dehydrogenation and/or decomposition products as impurities, is passed over a Ni catalyst supported on an aluminium oxide and/ or magnesium oxide carrier at a temperature of 150‹-500‹C to degrade some of the impurities to methane. The Ni catalyst may be present in an amount of 20-70% by weight (calculated as NiO) based on the support. The MgO may be present in an amount of 30-80% by weight of the carrier. The hydrogen may have been obtained in the dehydrogenation of cyclohexanol into cyclohexanone, ethylbenzene into styrene or propane into propylene.
Patent GB-1181405-A (GB)
Title: Improvements in or relating to Flow Regulating Arrangements
IPC: F24F13/00
Filed: 1967-08-24
Abstract: 1,181,405. Ventilating valves. NOBO FABRIKKER A/S. 24 Aug., 1967 [25 Aug., 1966], No. 39062/67. Heading F4V. [Also in Division G3] A fluid flow regulator comprises a flexible impervious sleeve 3 anchored to the inside of duct 1 and 2, and secured at its other end to a box 5 which is apertured at 6 and which is urged to the right by a spring 11. Under light flow conditions this spring holds the sleeve taught so that it presents minimum resistance to flow, but as the pressure increases, the sleeve buckles to the flow restricting shape shown. A knob 10 is provided to screw shaft 7 in and out of threaded bush 8 to pre-tension the spring. The sleeve is lined with sound insulating material 4.
Patent GB-1353720-A (GB)
Title: Arrangement for controlling the frequency and phase of an osci llator
IPC: H03L7/187
Filed: 1972-08-23
Abstract: 1353720 Automatic phase control systems; oscillators WIRTH GALLO & CO 23 Aug 1972 [24 May 1972] 39211/72 Headings H3A and H3T A phase control system comprises a first control loop including a voltage controlled oscillato 5, a frequency divider 6, a phase discriminator 1 and a difference integrator 2 and a second control loop including all the above elements except the discriminator 1 and wherein the difference integrator 2 has applied to it the outputs of the discriminator 1 and the divider 6 via RC averaging circuits. The phase discriminator 1 consists of a bi-stable flip-flop formed by crosscoupled NAND gates 14, 16 set and reset respectively by the falling flanks of the applied input signals. The divider 6 consists of cascaded bistable flip-flops 34-36. The controlled oscillator is a relaxation type of oscillator consisting of inverters 28-30, a capacitor 27 and a diode 31 and has its charging time constant dependent on the output impedance of inverter 29 and the value of capacitor 27 with the discharging time constant determined by resistor 32 and a capacitor 27. When the capacitor voltage at 26 becomes larger than the threshold voltage of inverter 30, the output of inverter 30 attains a " one " state and the charging cycle is completed. The output of integrator 2 affects the voltage at 26 and hence the duration of the discharge period. The frequency of oscillator 5 is thus increased or decreased to be in synchronization with the reference input applied via capacitor 7.
Patent GB-1348321-A (GB)
Title: Production of shaped polymeric articles
IPC: C08J7/12
Filed: 1971-08-20
Abstract: 1348321 Articles of polymers containing methacrylimide groups; the introduction of such groups ROHM GmbH 20 Aug 1971 [22 Aug 1970] 39232/71 Heading C3P Shaped articles of small doss-sectional thickness, such as films, foils, fibres and filaments, and comprising a polymer containing a substantial proportion of methacrylimide units, are prepared by a process which comprises heating to an elevated temperature to effect methacrylimide unit formation, a composition in the form of a pre-shaped article of small crosssectional thickness and comprising (A) a polymer of methacrylic acid or a methacrylamide; a copolymer of methacrylic acid with methacrylonitrile and/or a methacrylamide; or a copolymer of a C 1-4  alkyl methacrylate with a methacrylamide and/or methacrylic acid; said polymers and copolymers optionally containing up to 20 mole per cent of units of acrylic monomers replacing units of the corresponding methacrylic monomers and/or a minor proportion of units of one or more other copolymerizable monomers, and (B) a primary amine or diamine boiling at a temperature above that to which the article is heated and/or a compound which decomposes on said heating to produce ammonia or one or more primary amines and/or one or more diamines and volatile by-products, the nitrogen in said latter compound being in the form of an amide group derived from a carbonic acid or carboxylic acid. The amine(s) or diamine(s) produced from said compound may be volatile or non-volatile at the heating temperature, which is preferably from 130- 250‹ C. The mechanism of the reaction is not fully understood and it is essential to point out that when the polymer is substantially composed of all methacrylamide and/or methacrylonitrile with or without acid groups, some imide groups may form intramolecularly, without the compound (B) reacting. In such a case, the volatile amine(s) and/or diamine(s) released, escape, and the less volatile ones form some imide groups, and also have a temporary plasticizing effect. When diamine(s) are present or released from the amide, cross-linking also occurs to some extent. Amines and diamines which boil above the heating temperature are, for example, aniline, toluidine, octylamine and (in Example 3) hexamethylene diamine. Amides releasing NH 3 , amine(s) and/or diamine(s) are for example urea, urethan, N-methyl urethan, N,N-dimethyl urea, formamide and monomethyl formamide. When methacrylamide units are present in the polymer, they may be N-substituted, such as N-methyl-, N-butyl- and N- isopropyl-methacrylamide. The amide compounds may be present during the production of the polymer or may be added afterwards. The non-volatile amine or diamine is preferably added afterwards, since these tend to interfere with the polymerization.
Patent GB-866763-A (GB)
Title: Improvements in or relating to the low-pressure catalytic polymerisation of olefinic compounds
Inventor: SHIMMIN JAMES DONALD
IPC: C08F10/00
Filed: 1959-11-19
Abstract: Continuous processes for the polymerization of olefinically unsaturated compounds in liquid media comprising "Zeigler" catalysts comprise continuously or intermittently adding to the polymerization zones during polymerization catalyst-containing liquid media formed in separate catalyst-forming zones by mixing catalyst-forming components in the presence of polymer-containing reaction media from the polymerization zones under such conditions that catalyst concentrations in the resulting admixture are at least six times larger than the concentrations in the polymerization zones. Specified monomers are ethylene, propylene, n-butylene and styrene; and mixtures, e.g. of ethylene and propylene.  Inert diluents may be present, e.g. ethylene/ethane mixtures may be used.  The catalyst may be formed by mixing a compound of a Group 4a, 5a, 6a, 7a or 8 metal with a metal or alloy thereof of Groups 1, 2 and 3, organometallic compounds or hydrides of metals of Group 1, 2 and 3, tin and lead, or organic boron compounds.  The solvent may be heptane, isooctane or a light petroleum fraction.  Polymerization may be effected in a plurality of polymerization zones which may be served by one catalyst-forming zone.  The catalyst is preferably aged before passing into the polymerization zone, e.g. by passing through an elongated catalyst-ageing zone at a rate sufficient to prevent back mixing.  Examples describe the polymerization of ethylene in the presence of catalysts formed by mixing titanium tetrachloride and aluminium diethyl chloride.  Specifications 799,392, 799,823, 801,031, 810,023, 816,234, 819,867, 820,263, 837,053, 837,064 and 840,859 are referred to.
Patent GB-1284126-A (GB)
Title: Thread-stitching apparatus and method
Inventor: PIESCHE FRITZ
IPC: B42B2/02
Filed: 1969-08-06
Abstract: 1284126 Sewing machine POLYGRAPH LEIPZIG KOMBINAT FUR POLYGRAPHISCHE MASCHINEN UND AUSRUSTUNGEN VEB 6 Aug 1969 39403/69 Heading D1G [Also in Division B6] Folded sheets are stitched with thermoplastic or impregnated textile threads by feeding folded sheets 16 along a rotating circular path or surface 1 carrying a thread 5 wound off a spool and clamped by clips 4, cutting the thread into lengths, driving the ends of the thread lengths through the sheets by means of cam-controlled needles 6 rotating with the sheets so as to form stitches, the protruding ends of the stitches being then flattened and sealed by stationary sealing means 9 disposed near the circular path. The sheets are then fed out of the circular path and folded along the line of stitches (Figs. 2 and 3 not shown). The needles 6 are arranged in pairs and move with the cylinder 1, an internal fixed cam moving the needles radially against springs 19 to insert the thread ends. A thread cutting knife 20 is provided between two thread clips 4. In a modification (Fig. 3 not shown) the controlled grippers 2 are carried on a chain (3) associated with the cylinder 1 instead of being provided on the latter.
Patent GB-1021962-A (GB)
Title: Process for preparing 5-nucleotides
IPC: C12P19/30
Filed: 1964-09-28
Abstract: 51-Nucleotides are prepared by contacting an enzyme source, having ribose-51-phosphate transferring activity for producing 51-nucleotide from the corresponding organic base and a 51-nucleotide, with a solution containing the corresponding organic base and a 51-nucleotide other than that to be synthesized, and allowing biochemical reaction to take place to produce the desired 51-nucleotide.  Suitable microorganisms which can be used are enzyme sources which belong to the genera Pseudomonas, Alcaligenes, Serratia, Flavobacterium, Micrococcus, Staphylococcus, Proteus, Aerobacter, and Escherichia. The organic bases which may be used are the purine and pyrimidine bases such as purine, adenine, hypoxanthine, xanthine, guanine, 2-aminopurine, 2,6-diaminopurine, 6-dimethyl aminopurine, benzyladenine, 6-methylaminopurine, kinetin, uracil, 5-hydroxy-methyluracil, cytosine, thymine and barbituric acid. The enzyme reaction may be carried out in aqueous medium of a pH of from 5 to 10 and a temperature of from 30 DEG  to 60 DEG  C. and the synthesized 51-nucleotide isolated from the reaction mixture by such methods as ion exchange chromatography or precipitation. 51-nucleotide may suitably be obtained as crude crystals in the form of the alkali metal salt.  The enzyme source can be admixed with the reaction mixture in the form of cultured broth, living cells, dried cells or cell extracts.
Patent GB-1473984-A (GB)
Title: High pressure pipe unions
IPC: F02M55/00
Filed: 1975-09-26
Abstract: 1473984 Pipe couplings NOVA-WERKE AG 26 Sept 1975 [26 Sept 1974] 39595/75 Heading F2G A union for coupling a fuel injection pipe 1 with an element 2, e.g. an inlet manifold, comprises a clamping sleeve 4 in screw threaded engagement wth the pipe 1 and a union 3 screwed into the element 2, the union serving to press a frusto-conical end face 5 of the pipe against a corresponding sealing face 6 on the element 2, and, by means of a frusto-conical surface 12, compress a part 10 of the sleeve 4, which is provided with four longitudinal slits 11, radially against the surface of the pipe 1. In an alternative embodiment a forged collar is provided on the end of the pipe 1 and the sleeve 4 presses against the collar. Furthermore, the surfaces 5, 6 may be part-spherical rather than conical, if desired.
Patent GB-1379189-A (GB)
Title: Cable straps
IPC: F16L3/233
Filed: 1973-08-22
Abstract: 1379189 Cable straps NIFCO Inc 22 Aug 1973 [24 Aug 1972] 39791/73 Heading E2B A cable strap for elongate articles comprises a length of flexible tape, of a synthetic resin material, having a plurality of saw-tooth projections 2a, 2b along its opposite longitudinal edges, and a plurality of triangular apertures 5 along its longitudinal centre part. The apex of each aperture may end at the base of the preceeding aperture, and there may be extensions 6, 6' having deformable, anchoring projections for passage through an aperture to secure the binder to an object.
Patent GB-1161076-A (GB)
Title: Improvements relating to Slurry Fertilizers.
IPC: C05G5/27
Filed: 1966-09-06
Abstract: 1,161,076. Slurry fertilizers. W. R. GRACE & CO. 6 Sept., 1966 [7 Oct., 1965], No. 39834/66. Heading C1A. A slurry fertilizer is produced by acidulating phosphate rock to a citrate soluble level of at least 85%; transferring the slurry to a storage vessel; ammoniating to within the pH range at which a gel can form, either before or after transfer to the vessel; agitating the slurry in the vessel until it gels; and refluidizing the gel when required by either raising or lowering the pH above or below the said pH range. The slurry may initially be ammoniated to a pH of 6À5-7À5, and refluidized by ammoniation to a pH of 7À5-9. The gel has a density of 1À3-1À6 g/cc. and a viscosity sufficient to prevent settling of particles + 100 U.S. mesh, and may contain 10-50% H 2 O. In the example, phosphate rock was acidulated with HNO 3  and H 3 PO 4  and ammoniated with anhydrous NH 3 . KCl was also added, to give a 6-12-12 fertilizer. The use of ammonium salts for ammoniation is also referred to.
Patent GB-1042291-A (GB)
Title: í¸-6ª‡-amino steroids and the preparation thereof
Inventor: HEWETT COLIN LESLIE
IPC: C07J75/00
Filed: 1961-11-08
Abstract: The invention comprises steroids of the formula <FORM:1042291/C2/1> (wherein Y is O, H(COCH3) or H(CHO acyl CH3) and R1 and R2 are C1- 6 alkyl o NR1R2 is a saturated heterocyclic amino radical) and their preparation by oxidation of steroids of the formula <FORM:1042291/C2/2> and dehydration of the resulting steroids in the presence of an alkali.  The products may be converted into salts with organic or inorganic acids.
Patent GB-1396702-A (GB)
Title: Fluid pressure servo motors
IPC: F16J3/06
Filed: 1971-08-27
Abstract: 1396702 Rolling diaphragm seals GIRLING Ltd 25 Aug 1972 [27 Aug 1971] 40254/71 Heading F2T A rolling diaphragm for a servomotor has an axially-extending support or spacer member 36 freely located in the. open fold 30. The support 36 may be made of metal or plastics and formed as a continuous or segmental ring or formed from a piece of wire folded in wave-like manner into a cylindrical shape.
Patent GB-1510988-A (GB)
Title: Electric arc furnaces and their operation
IPC: H05B7/152
Filed: 1975-10-06
Abstract: 1510988 Automatic control REPUBLIC STEEL CORP 6 Oct 1975 [8 Oct 1974 (2)] 40829/75 Heading G3N [Also in Division H5] The driving motor 54 for an arc furnace electrode 14 is stopped when the rate of change of the force opposing electrode movement exceeds a predetermined magnitude indicative of an obstruction rather than normal weight loss caused by consumption of the consumable or non-consumable electrode or positional changes thereof. The changes in force on the electrode system are detected by a load cell 74 disposed between an anchor 62 or the stationary guide 40 for the movable electrode support column 42 and the end of a driving cable 60 wound about a winch 58 driven by motor 54. The load cell 74 may be of various types and may be alternatively located in the mounting of the sheave 64. The force signals from load cell 74 is fed to an upward control system 20. The control system 20 comprises a manual controller 82 and an automatic controller 84 controlling a power source 80 for motor 54. The automatic controller 84 is individually governed by an arc condition sensing control circuit 96 and a force responsive control circuit 100. The control circuit 96 normally continuously adjusts the electrode 14 relative to the furnace charge 36 to maintain a stable optimum arc current and arc voltage relationship. On initiation of furnace operation the electrode 14 is lowered under the control of the circuit 96 until a stable arc condition is established. Should an arc fail to be struck, due for example to a non-conductive portion 38 of charge being beneath the electrode 14, the electrode 14 will continue to advance and will strike the charge. When the electrode strikes the charge the rate of change of the detected axial electrode force will exceed a level pre-set in the downward motion control 110 of the control circuit 100, and produce an output signal from a comparator 170 which actuates a relay 174 which conditions the controller 84 to stop motor 54 and sound a horn 184 until the force is reduced. The downward motion control 110 is also effective to stop the motor 54 should the electrode 14 be broken as a result of cave-in of the charge or should the electrode support 44 over-run downward limit switches. Should electrode movement be obstructed in an upward direction under manual or automatic control, the motor 54 is stopped and a horn 204 sounded by a control 112 of the force responsive circuit 100. To prevent the downward control 110 from preventing downward movement when an upward obstruction has been encountered, a disabling circuit 220 disables the downward control 110 in response to a motor stop signal from control 112. The downward motion control is rapidly returned to its operative state.
Patent GB-1031611-A (GB)
Title: Extrusion apparatus
IPC: B29C48/92
Filed: 1963-10-16
Abstract: 1,031,611. Automatic control of extrusions. E. I. DU PONT DE NEMOURS & CO. Oct. 16,1963 [Oct. 17,1962], No. 40897/63. Heading G3R. In a screw-type plastic extrusion head the speed of the screw drive is automatically maintained constant at a value which is changed temporarily whenever extrusion pressure changes. In Fig. 1 (not shown) the speed at which an induction motor 14 drives the screw 12 of a thermoplastic extruder 11 is automatically maintained at a desired value by an A.C. tachometer generator 17 controlling the energization of an electromagnetic coupling 16 through a thyratron control circuit 18. The speed may be set manually by means of a potentiometer associated with circuit 18. An A.C. signal dependent on the pressure of the molten material between extruder 11 and die 10 is produced by a strain gauge 19 and applied to an amplifier-bridge circuit 20 the rate of change of the output of which is derived by a resistance-capacity unit in circuit 21 and applied to control circuit 18 so that screw speed is temporarily altered whenever extrusion pressure changes. Adjustable resetting feedback is provided for an amplifier in circuit 21.