baber/WOPTO huggingface dataset:
Patent GB-1400649-A (GB)
Title: Binary information transmission system with error correcting code
IPC: H04L1/00
Filed: 1973-10-01
Abstract: 1400649 Data transmission; error detection SOC ITALIANA TELECOMUNICAZIONI SIEMENS SpA 1 Oct 1973 [3 Oct 1972] 45787/73 Heading H4P An error detecting/correcting arrangement comprises a feedback shift-register receiving information to be transmitted in successive discrete n<SP>n</SP> bit words, the register content being advanced by one bit (2<SP>n</SP>-1) times for transmission of each word, the bit successively appearing in its last stage during the (2<SP>n</SP>-1) shifts forming a coded word which is transmitted. At the receiver two memories with a capacity of (2<SP>n</SP>-1) bits receive alternately incoming coded words and the one not receiving reading the previously stored word at (2<SP>n</SP>-1) times the receiving speed, so that (2<SP>n</SP>-1) successive read-outs of a given word occur in the time in which the next word is read into the other memory. A second feedback shift-register at the start of each read-out is in a respective one of its (2<SP>n</SP>-1) possible configurations and then effects (2<SP>n</SP>-1) shifts in synchronism with the read-out of the (2<SP>n</SP>-1) bits from the memory with a comparison device detecting coincidences during a cycle of (2<SP>n</SP>-1) read-outs; and a unit for detecting if the count made during this is less than or equal to the maximum error admissable l in the transmitted word, and motivates and if not greater; and an output unit which forwards the configuration stored in the second shift-register. In the embodiment described n = 5 and data bits B0-B4 are clocked parallelly into feedback register 22 at a pulse rate A and bits are circulated at pulse rate C=31A through exclusive OR 24 which develops a maximal cyclic sequence of 31 bits whose phase is determined by the configuration B0-B4. Bit B5 determines the sign of transmitted coded 31 bit words E. At the receiver while a 31 bit word is entered alternately into one of two registers, say 31, at bit frequency=E, the word contained in register 32 is successively read out 31 times by clock pulses H=31E providing 31 comparisons in an exclusive OR 35 with a succession of words generated in feedback register 33; an additional clock pulse L sets register 33 to initial state 11111. A counter 36, reset by L, records "1" outputs and if these do not exceed 7 or not less than 24 a comparator 37 excites an output U or V respectively. If all received bits are correct, output from 37 will be either all 1's or 0's dependent on whether transmission is normal or inverted hence the value of bit B5 can be determined. With some errors, e=7 discordances are considered the maximum permissible. Where there is out of phase between the bits stored in 32, 33, register 33 will cycle until one of outputs U, V indicate acceptability hence content of 33 will represent original bits B0, B4 which are placed in register 38, inputs U, V determining whether these should be inverted before being passed to a receiving device (not shown). Other limits for maximum permissible error e may be adopted.
Patent GB-1520787-A (GB)
Title: Dyeing compositions for human hair and nitrophenyl ethers for use therein
IPC: C07C/
Filed: 1975-11-04
Abstract: 1520787 Nitrobenzene dyes L'OREAL 4 Nov 1975 [5 Nov 1974] 45788/75 Heading C4P [Also in Division Dl] The dyes of formula in which Z is a substituted alkyl group, R 1  and R 2  are hydrogen, alkyl or substituted alkyl groups are prepared by reacting an alkylating agent XZ in which X is halogen with an alkali metal salt of the compound of formula in which Y is NH 2 , NHR 1 , NR 1 R 2 , NHCOCH 3  or NR 1 COCH 3  or a halogen atom, Y and NO 2  can occupy any position in the ring relative to the OH except when Y is halogen in which case the halogen atom is o- or pto the nitro group to give a compound of formula and optionally treating this compound to convert Y into -NR 1 R 2  by known methods.
Patent GB-1323714-A (GB)
Title: Positioning device
IPC: G01N23/16
Filed: 1970-09-28
Abstract: 1323714 Radiation thickness gauge EXATEST MESSTECHNIK GmbH 28 Sept 1970 [1 Oct 1969] 46004/70 Heading G1A In an X-ray thickness gauge, two-speed drive means are provided for quickly and accurately positioning a chosen absorber 16 of a disc absorber 18 into the radiation path. The radiation path comprises X-ray tube 10, metal sheet 12 under test and detector 14. In order to maintain a detector output at a required level in accordance with a particular desired thickness the appropriate absorber 16 is introduced into the path by the following method. One of relay contacts 36 is closed manually or by a regulating loop, to set up a reference voltage on one side of a bridge network defined by resistors 34 and potentiometer 32. The voltage at the tap of the potentiometer is compared with the reference and if it is above the threshold of Schmitt trigger 38 (in the bridge diagonal) relay 42 is energized to close 42a and connect motor 22 to the supply 55. This causes rotation of intermediate shaft 28 and thereby disc 18 moving the required absorber into position. At the same time the tapped voltage from potentiometer 32 decreases below the trigger threshold and causes contact 42a to open. However, rotation continues at a reduced speed due to 52a being closed and connecting reduced voltage supply to the motor. When the required absorber is in a predetermined accurate position, cam 46 on cam disc 44 has reached micro-switch 48 to open this de-energize relay 52, and cause contact 52a to open so as to stop the motor. There may be a number of discs of different absorber value ranges.
Patent GB-1410233-A (GB)
Title: Data display
IPC: G09G1/16
Filed: 1972-10-05
Abstract: 1410233 Cathode-ray tube displays SIEMENS AG 5 Oct 1972 [5 Oct 1971] 46072/72 Heading H4T A graphical representation of a sequence of items of data is produced by bright-up of the beam of a cathode-ray display tube as it is scanned in a line raster. The data items (e.g. representative of measured values), which are supplied by a data processor DVA (Fig. 1) and read into the input-output register EAR of a shift register SR at addressable locations, are circulated under the control of a pulse generator T the frequency of which is such that a measured value is transferred to register EAR each time the (horizontally scanned) beam has moved a distance equal to the desired interval between successive display positions thus establishing "columns" as shown for a portion of the screen area by 1 to 9 in Fig. 3. The number of pulses from generator T required to effect this is employed as the division factor of divider FT which thus sets up in a column counter SPZ a count equal to the number of columns scanned. When this count reaches the capacity of the counter (equal to the number of data items which can be stored in register SR) a pulse is supplied to a line counter ZZ and to the video signal (bright-up) generator VS which then produces a line fly-back pulse. Before this occurs, however, the number in counter ZZ is supplied via negating gates N to a comparator V2 in which it is compared with the content of register EAR and on coincidence of inputs an output pulse is produced on line P which acts through the video signal generator VS to produce a beam bright-up pulse. When counter ZZ reaches full count it supplies a frame fly-back control pulse to generator VS. Fig. 3 shows the manner in which the display is produced assuming the values in the register EAR and SR to be as shown in Fig. 2. Thus during the first line scan the number 0 is in register ZZ, the negation of this #ZZ is 7 and thus the brightup point in the first line is only produced when the value 7 in register SR has been shifted to register EAR which occurs when the column number 6 position has been reached by the beam as shown in Fig. 3. When the output of the gates N is less than the value in register EAR comparator V2 supplies an output on line F which may be employed via gate T2 in the presence of a control signal on line FH to cause bright-up of a plurality of point position in a line. Instead of connecting the gates N between counter ZZ and comparator V2 they may be connected between register EAR and the comparator. New data is introduced via gate T1 controlled by the output of a comparator V1 which compares the desired address in address register ADR with the output of the column counter SPZ. A network of electronically generated scale lines may be displayed and the display may be in colour when several curves are to be displayed simultaneously.
Patent GB-1256082-A (GB)
Title: Manufacture of chlorofluoropyridines
Inventor: ROBERTS ROBERT
IPC: C07D213/61
Filed: 1968-09-30
Abstract: 1,256,082. Fluoropyridines. IMPERIAL CHEMICAL INDUSTRIES Ltd. 16 Sept., 1969 [30 Sept., 1968], No. 46314/68. Heading C2C.  Chlorine is replaced by fluorine as a substituent in a pyridine ring by reaction of a chloropyridine or chlorofluoropyridine with potassium fluoride in a polar aprotic solvent in the presence of 0À2 to 2À0 parts by volume water per 100 parts by volume of the solvent. Solvents specified are N-methyl-2-pyrrolidone, dimethyl sulphone, ethylene carbonate, formamide, N- methyl-acetamide, N-methyl-formamide, dimethyl formamide and tetramethylene sulphone. Reaction is preferably effected at 160‹ to 250‹ C. under reflux. The treatment of pentachloropyridine to give 3,5-dichloro-2,4,6-trifluoropyridine, 3-chloro-tetrafluoropyridine and 2-fluorotetrachloropyridine is exemplified.
Patent GB-1505338-A (GB)
Title: Baling presses
IPC: A01F15/14
Filed: 1976-11-08
Abstract: 1505338 Baling press LINDEMANN MASCHINENFABRIK GmbH 8 Nov 1976 [20 Nov 1975] 46395/76 Heading B5F A baling press comprises a needle 6 movable through a pressing duct 1 of the press, the needle having a hook 19 and a bevelled end surface 23, and a movable wire holder 24 for holding binding wire 16 in the path of the needle so that, in use, the wire is deflected by the bevelled end surface 23 and moves into the hook opening. The needle 6 moves through a groove 18 in the pressing plate 2 and has a sheave 21 rotatably journalled in its hook opening. The wire holder 24 may comprise a pair of hookshaped members 26 pivoted at 25 and pulled against an abutment 29 by a spring 28.
Patent GB-1413327-A (GB)
Title: Process for the manufacture of adenosines
IPC: C07H19/16
Filed: 1972-10-09
Abstract: 1413327 6-Amino substituted adenosines SCHERING AG 9 Oct 1972 [8 Oct 1971] 46418/72 Heading C2C Adenosines of the general formula in which R 1  and R 2  each represents a hydrogen atom or an alloyl, analloyl, aryl or heterocyclic group or R 1  represents a hydrogen atom and R 2  represents a hydroxyl or free amino group or an alkyl group which alloyl group may be terminally substituted, or R 1  and R 2  together with the adjacent N atom represent a heterocyclic group, R 3  represents a hydrogen atom or a free amino group and Z represents a free or protected sugar group are prepared by a process wherein when (c) R 3  represents a hydrogen atom, a compound of general Formula II in which the "Alkyls" represent the same C 1  to C 4  alkyl groups R3<SP>1</SP> represents a hydrogen atom and Z<SP>1</SP> represents a silylated or acylated sugar group or a sugar group protected by acetal formation or (b) when R 3  represents a free amino group R 3 <SP>1</SP> represents a trialkylsilylamino group is reacted with ammonia or an amine of formula HNR 1 R 2  in which R 1  and R 2  have the meanings given above, or is reacted in the presence of a tertiary base with a salt of an amine of the formula HNR 1 R 2 , in which R 1  and R 2  have the meanings given above, and, if desired in the resulting compound a protecting group is split off from the sugar group and, if desired, any free sugar group is converted into a protected sugar group. The reaction is preferably carried out in the presence of one or more amine salts and/or of one or more Lewis acids as catalyst. The catalysts are used in the reaction in total amounts within the range of from 0.001 mole to 5 moles for each mole of the nucleoside of the general Formula II. When the compound of the general Formula II is reacted with a salt of an amine of the formula HNR 1 R 2  these catalyst ranges refer to the total amount present of any excess amine salt(s) and/or any Lewis acid(s). The invention also provides adenosines of the general formula in which R 3  represents a hydrogen atom or a free amino group and R 4  and R 5  together with the adajacent nitrogen atom represent a 5- or 6-membered heterocyclic group which may be interrupted by a further oxygen or nitrogen hetero atom.
Patent GB-1482783-A (GB)
Title: Molecular weight jumping of elastomeric polymers
IPC: C08C19/00
Filed: 1974-10-28
Abstract: 1482783 Increasing MW of elastomers UNIROYAL Inc 28 Oct 1974 [7 Nov 1973] 46548/74 Heading C3P The molecular weight of elastomeric polymers is incresed by contact in fluid form and under substantially anhydrous conditions with a catalyst system comprising (1) an organic peroxyacid, e.g. peroxyacetic acid or m-chloroperoxybenzoic acid, and (2) an inorganic Lewis acid, e.g. BF 3  etherate. Liquid polymers may be treated as such, and solid polymers in solution, e.g. in benzene or toluene. Numerous rubbers are specified, those treated in examples being cis-1,4-polybutadiene and a butadiene/ styrene block copolymer.
Patent GB-1425776-A (GB)
Title: Television and like camera cathode ray tubes
IPC: H01J29/02
Filed: 1973-10-06
Abstract: 1425776 Image pick-up tube ENGLISH ELECTRIC VALVE CO Ltd 14 Aug 1974 [6 Oct 1973] 46785/73 Heading HID In a vidicon or image orthicon tube, in which a fine conductive mesh 4 is held between rings 5, 6 as described in Specification 1,425,353 the mesh is isolated from vibration transmitted through the electrode structure by attaching, the mounting assembly, spot welded at its periphery 7, to flange 12 of a fixed cylindrical member 11 by means of three resilient U-shaped elements 14, each fastened at one end to member 11 and at the other spot welded to an L-shaped carrier member 13. The three equispaced members 13 are attached by their short ends to the mesh mounting ring 6 and each rests with the inner angle of the L in frictional contact with the edge of flange 12. In the embodiment the assembly is fitted to a vidicon tube (Fig. 1 not shown).
Patent GB-1533558-A (GB)
Title: Printing device
IPC: B41J2/51
Filed: 1975-11-13
Abstract: 1533558 Selective printing SOC D'APPLICATIONS GENERALES D'ELECTRICITE ET DE MECANIQUE 13 Nov 1975 [14 Nov 1974] 46817/75 Heading B6F [Also in Division G4] In a dot matrix printer in which a print head carriage moves along a print line and the head has guides 1 1 -1 7  for the ends of a column of electromagnet-operated print needles, the column of guides can be positioned upright 20 1  or at an angle 20 2  to print characters upright or slanting. A wedge 12 at line beginning (i.e. not on the carriage) is set into one of the two positions shown by an electromagnet, according to the orientation required, and on carriage return, a boss 16 on an arm 10 rigid with the guides' support is moved to the required one of the two positions shown (unless already in it) as it slides up or down the wedge 12. Recesses 8, 9 are provided in guides' support member 3 to receive a spring-loaded ball 7 to back it in position. A modification permits a line of print to be a mixture of upright and slanting characters by controlling arm 10 using an electromagnet on the carriage. Upright and slanting characters may be used for received and transmitted data respectively (in a teleprinter application), or error-free and erroneous data respectively (in a computer output printer), or credits and debits respectively (in accountancy applications of calculators). Electronic ways of achieving the slanting characters are disclosed (see Division Division G4).
Patent GB-1394515-A (GB)
Title: Valve eg for gaseous medium
IPC: F16K39/02
Filed: 1973-10-09
Abstract: 1394515 Valves BLOOM ENG CO Inc 9 Oct 1973 [12 Oct 1972] 46976/73 Heading F2V A high pressure valve for blast furnaces has a valve disc 12 which co-operates with a seat 13 and is provided with an aperture 20 therethrough. The aperture 20 is opened by movement of the closure member 19 to pressure balance the disc 12 prior to opening movement thereof. Closure member 19 is pivoted at 25 to the end of a lever 16 which is splined to an actuating shaft 33. A pair of rollers 23, 28 mounted on each of stanchions 35 on the disc 12 move in blind slots 30 in the uprights 29 on the closure member 19. Links 17 are pivoted at their ends to the stanchions 35 and easing mounts 18. On rotation of the shaft 33 the closure member 19 first opens aperture 20. Then when rollers 28 contact the end of slots 30 the disc 12 is lifted off its seat. Links 17 thereafter rotate the disc 12 through 90 degrees, a stop 36 limiting movement. In a modification the disc 12 is closed and the closure member 19 is mounted on a reciprocating shaft guided in a spider fixed in the aperture 20 and a yoke on the disc 12. In a further modification the closure member 19 slides in a guide on the disc 12 and is moved by a lever and link arrangement. The aperture 20 may be radially offset from the centre of disc 12.
Patent GB-1081289-A (GB)
Title: Regeneration process for adsorbent beds
IPC: C10G25/03
Filed: 1964-11-18
Abstract: In a modification of Specification 1,041,205 previously desorbed zeolitic adsorbents in particular molecular sieves, are regenerated without burning by contact with a regenerative agent at 0 DEG  to 100 DEG  F. above the desorption temperature and within the range 600 DEG to 1000 DEG  F. for at least one hour, said regenerating agent having the formula <FORM:1081289/C1/1> where R1, R2, R3 are hydrogen and/or C1-C5 alkyl radicals, e.g. ammonia, primary amines. The sieves may have a pore size above 4<\>rA and below 20<\>rA and may be natural zeolites such as chabazite, faujasite, heulandite, analcite, and commercial complex alumino-silicates.  The regenerating agent may be used in the gaseous or liquid state and may be the same compound as is used in the desorption step under different conditions as a displacing agent.  The sieve may be regenerated after the sieve has been desorbed with a displacing agent such as sulphur dioxide, hydrogen sulphide, ammonia, C1 to C5 alcohols, glycols, halogenated compounds, nitrated compounds.  In the examples a molecular sieve bed was operated continuously for a period of 400 adsorption-desorption cycles in the recovery of normal paraffins from a C9-C16 fraction boiling at 350-600 DEG  F., using ammonia as the displacing agent and then regenerated with ammonia at the same temperature as the desorption temperature, viz. 665 DEG  F.ALSO:In a modification of Specification 1,041,205, previously desorbed zeolitic adsorbents, e.g. molecular sieves, are regenerated without burning by contact with a regenerative agent at 0 to 100 DEG F above the desorption temperature and within the range 600 DEG  to 1000 DEG F for at least one hour, said regenerating agent having the formula: <FORM:1081289/B1-B2/1> where R1, R2, R3 are hydrogen and/or C1-C5 alkyl radicals e.g. ammonia, primary amines. The sieves may have a pore size above 4  and below 20  and may be natural zeolites such as chabazite, faujasite, heulandite, analcite, and commercial complex alumino-silicates.  The regenerating agent may be used in the gaseous or liquid state and may be the same compound as is used in the desorption step under different conditions as a displacing agent. The sieve may be regenerated after the sieve has been desorbed with a displacing agent such as sulphur dioxide, hydrogen sulphide, ammonia, C1 to C5 alcohols, glycols, halogerated compounds, nitrated compounds.  In the examples a molecular sieve bed was operated continuously for a period of 400 adsorption desorption cycles in the recovery of normal paraffins from a C9-C16 fraction boiling at 350-600 DEG F. using ammonia as the displacing agent and then regenerated with ammonia at the same temperature as the desorption temperature viz. 665 DEG F.
Patent GB-979486-A (GB)
Title: Fastener device
IPC: F16L3/12
Filed: 1962-12-17
Abstract: 979,486. Injection moulding. UNITEDCARR FASTENER CORPORATION. Dec. 17, 1962 [Dec. 18, 1961], No. 47603/62. Heading B5A. [Also in Division E2] In a method of moulding a fastener having a tongue-like portion 2 removably insertable in an aperture 7 in a strip-like portion 3 to form an article-encircling loop, the direction of separation of the mould halves is transverse of and parallel to the plane of the strip-like portion, and the aperture 7 is formed by the juxtaposition of two moulded-in notches 10, 11 extending from opposite edges and on opposite sides of the strip-like portion 3. Figs. 5 and 6 show opposite sides of the fastener. Serrations 5 on the portion 2 engage the edge of the aperture 7. A projection 8 for gripping, e.g. a cable held by the fastener, may be provided on either portion 2 or 3 or on a base portion 1.
Patent GB-1142402-A (GB)
Title: Process for dehydrogenating oxygenated hydroaromatics
IPC: B01J23/00
Filed: 1966-10-25
Abstract: 1,142,402. Dehydrogenation of oxygenated hydroaromatic compounds. GULF RESEARCH & DEVELOPMENT CO. 25 Oct., 1966 [5 Nov., 1965], No. 47801/66. Heading C2C. A process for dehydrogenation of oxygenated hydroaromatic compounds comprises contacting an oxygenated hydroaromatic compound wherein the oxygen is directly connected to a hydroaromatic ring carbon atom under dehydrogenation conditions with a catalyst comprising tin. The catalyst may consist essentially of tin on an inert support or may comprise tin and at least one Group VIII metal wherein the molar ratio of the Group VIII metal and tin is at least 1-7 1 and may also include an alkali metal sulphate or alkaline earth metal sulphate and chromium. The product recovered may comprise a compound which is less saturated with hydrogen and which has an increased number of rings per molecule than the oxygenated hydroaromatic, e.g. cyclohexenyl cyclohexanone obtained from monooxygenated cyclohexane or has the same number of rings as the oxygenated hydroaromatic compound, e.g. phenol from monooxygenated cyclohexane and in this case the catalyst must contain the Group VIII metal.
Patent GB-1179206-A (GB)
Title: Improvements in or relating to Teeth or Knife Sections for Agricultural Mowers and to Methods of Manufacturing the same.
IPC: A01D34/14
Filed: 1968-10-10
Abstract: 1,179,206. Making mower cutter bars; rolling. INTERNATIONAL HARVESTER CO. 10 Oct., 1968 [10 Oct., 1967], No. 47999/68. Headings B3A and B3M. [Also in Division A1] A tooth or knife section 1 for a mower has parallel grooves 5 and is formed by cold-rolling a steel strip between a smooth roller 13 and one having annular beads 14, and smooth edges 18, 19 to form base portions of the tooth. The teeth are cut from the strip in top to base relation.