baber/WOPTO huggingface dataset:
Patent GB-1105956-A (GB)
Title: Process for the production of vinyl ethers
Inventor: CLARK Duncan
IPC: C07C41/14
Filed: 1964-11-19
Abstract: A second vinyl ether is made from a first vinyl ether by transetherification, by contacting the said first ether with an organic hydroxy compound under substantially anhydrous conditions (defined as up to 10% water present) in the presence of a salt or co-ordination compound of Ru, Rh, Pd, Os, Ir or Pt, whereby the second vinyl ether is formed, comprising a vinyl moiety from the starting vinyl ether, and an organic moeity from the organic hydroxy compound. The starting vinyl ether may be of formula <FORM:1105956/C2/1> wherein R1, R2 and R3 represent aliphatic, cycloaliphatic, aryl or heterocyclic groups, or wherein any two of R1, R2 and R3 form part of a cyclic group as defined above, and R6 represents an alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl, aralkyl or heterocyclic group. Methyl vinyl ether and isobutyl vinyl ether are specified.  The organic hydroxy compound may carry further substituent groups, e.g. ketone, ether, ester, hydroxy, halogen or amino. Examples include C1- 20 alkanols (many named), phenols, cresols, xylenols, rescorcinol and hydroquinone. Particular catalysts are palladous chloride, bromide or acetate, lithium chloropalladite or bromopalladite, and dichloro-bis-(benzonitrile)-palladium (II). The complexes among these may be prepared in situ by conducting the transetherification in a solvent which can complex with the simple salts, e.g. sulphoxides, sulphones, benzonitrile or diethylene glycol dimethyl ether.  Suitably reaction proceeds at -50 DEG  to +200 DEG C. at 0.1-1.0 At., with a catalyst concentration up to 1 M. Additionally, there may be present as complexing agent an alkali metal halide (not the fluoride), e.g. lithium chloride.  To suppress acetal formation, a stationary content of up to 20 wt. per cent of an acetal may be incorporated.  In examples, isobutyl methyl acetal, diisobutyl acetal, and acetaldehyde appear as by-products in the reaction of methyl vinyl ether with isobutanol. The product may be recovered by distillation, crystallization or countercurrent solvent extraction.
Patent GB-1017431-A (GB)
Title: 17ª‰-acetoacetoxy steroids and process for the preparation thereof
Inventor: BURGESS COLIN MICHAEL
IPC: A61K31/567
Filed: 1963-11-29
Abstract: The invention comprises 17b -acetoacetoxysteroids having in ring D of the steroid nucleus the structure <FORM:1017431/C2/1> (wherein R is H, a halogen, CF3, C­CH or C1-5 alkyl) and their preparation by reacting the corresponding 17b  - hydroxy - steroids with diketene in an anhydrous non-hydroxylic solvent in the presence of an organic base catalyst.  The process may be applied to steroids containing a variety of substituents and unsaturated links in rings A, B, and C, e.g. to steroids containing D 1-, D 2-, D 3-, D 4-, D 5-, D 9(11)-, D 11-, D 2,5(10), D 3,5-, D 1,3,5(10)- or D 4,9(10)-double bonds; alkyl, alkenyl or alkynyl groups, particularly 2-, 4- and 6-methyl; free or protected, e.g. as enol ethers, enamines, ketals or thioketals, oxo groups, particularly at positions 3, 4, 6 and 11; acyl groups, particularly at position 3; and protected hydroxy groups, e.g. tetrahydropyranyl-oxy, -ethoxy or -acyloxy groups. Examples are given, D 2,5(10) - 3 - alkoxy products being converted to 19-nor-D 4-3-ones or D 5(10)-3-ones.  3b  - acetoxy - 17a  - chlorethynyl - androst - 5 - en-17b -ol is prepared by acetylation of the 3b -ol.  17a  - butadiynyl - 3 - methoxy - oestra - 1,3,5-(10)-trien-17b -o is prepared from oestrone 3-methyl ether and 1,4-dichloro-but-2-yne with sodium in liquid ammonia.  Specifications 915,565 and 961,502 are referred to.ALSO:Pharmaceutical compositions comprise 17b -acetoacetoxy-steroids having in ring D of the steroids nucleus the structure <FORM:1017431/A5-A6/1> (wherein R is H, a halogen, CF3, C ­ CH or C1-5 alkyl) and carriers.  They may also contain ethynyloestradiol. Tablets are described, containing 17b -acetoacetoxy-17a -ethynyl-19-norandrost-4-en-3-one.  Oily solutions are also mentioned.  The steroids have, inter alia, oestrogenic, progestational, claudogenic and ovulation-inhibiting properties.
Patent GB-1488662-A (GB)
Title: Two-phase thermosyphons
IPC: F28D15/02
Filed: 1973-10-11
Abstract: 1488662 Heat pipes INDUSTRY SECRETARY OF STATE FOR 11 Oct 1974 [11 Oct 1973] 47498/73 Heading F4U A two-phase thermosyphon comprises a closed vessel 1 including a condenser reservoir 16 located adjacent the condenser 5 and an arrangement for regulating the level of condensate therein, whereby the effective area of the condenser surface in contact with the vapour and hence the rate of condensation may be controlled. As shown in Fig. 1, an annular reservoir 16 is provided with a downoomer tube 9 having a flow-restricting orifice 17. The tube 9 may be provided with an electrical heater for generating vapour to stop the flow of liquid. In another embodiment, Fig. 2 (not shown), a pair of downcomer tubes are connected to an auxiliary condenser located beneath the main condenser, the tubes being provided with thermostatic valves controlled in accordance with the vapour temperature. The tubes may be located outside the vessel 1 and the valves may be operable manually. In a further embodiment, Fig. 3 (not shown), the condensate level in the reservoir is controlled by a vapour lift pump. In the embodiment illustrated in Fig. 4 (not shown), a supplementary external condenser is connected to the vessel 1, the connection including a thermostatic or manual valve. The thermosyphon may include the arrangement disclosed in Specification 1,488,661, in which the effective surface area of the evaporator is controlled.
Patent GB-1370348-A (GB)
Title: Thermal insulation
IPC: F17C3/06
Filed: 1971-10-13
Abstract: 1370348 Thermal insulation for cryogenic containers MARTIN MARIETTA CORP 13 Oct 1971 [16 Oct 1970] 47603/71 Heading F4P In a thermal insulation construction lining the interior of a cold liquefied gas, e.g. natural gas storage container wall 12, Fig. 1, and comprising a plurality of discrete cells 18 each having a cover 20 at their liquid contacting side apertured at 22 for providing a stable gas-liquid interface 24, Fig. 3, means is provided whereby the liquid adjacent the cells is not below its boiling point whereby the formation of said interface 24 is controlled. Said means may comprise a porous thermal barrier 30, e.g. cork which allows passage of liquid which when it reaches cover 20 forms a layer L1 free of connection currents and is at about its boiling point. In a modification the layer 30 is dispensed with' and the cells are charged with a gas, e.g. helium other than the vapour of the stored liquid whereby the saturation pressure of the liquid in the cells corresponds to the partial pressure of the vapour phase of the liquid within the cells.
Patent GB-1020220-A (GB)
Title: Improvements in or relating to staple applying machines, more particularly for sealing bag-shaped packages
IPC: B65B51/04
Filed: 1964-11-24
Abstract: 1,020,220. Bag &c. closure applying machine. SOC. FRANCAISE D'AGRAFAGE INDUSTRIEL. Nov. 24, 1964 [Nov. 29, 1963], No. 47787/64. Heading B8C. [Also in Division B6] A machine for clenching a staple round the gathered neck of a bag &c. comprises a sliding carriage having a groove which receives a staple from a stack in one position of the carriage, and a driver slidable in the groove and connected to the carriage by resilient means tending to retract the driver, the carriage and driver being slidable towards an anvil on which the neck &c. is placed for closuring. The carriage is moved in the machine body by a piston 3 which is depressed when a trigger 14 admits compressed air above it via a valve 9, Fig. 1 (not shown). The driver 24 is secured to the piston rod 4 which latter has a universal joint connection with the piston. A slide block 25 secured to the driver, is separated by springs 28 from the carriage 27, relative movement being restricted by a pin 27a and slot 24a. The driver slides in a groove 27b in the carriage. The body has a recess for the neck C just above the anvil 34. When the trigger 14 is moved, the carriage and driver descend together, a staple a from a stack holder 30 being located in the groove 27b by a spring loaded pin 32. A recessed member 29 on the carriage engages the bag neck and the carriage halts. The driver, however, continues moving down to clench the staple against the anvil. In other embodiments, a cutter blade to trim the neck is mounted either on the slide block or in a position to be depressed against spring action by the block (Figs. 10, 11 and 12-17 / respectively, not shown). In an embodiment for applying two staples simultaneously and severing a gathered package portion between them, driver, carriage and slide block are duplicated on either side of a knife blade, there being also two staple magazines, but only one piston and rod (Fig. 18, not shown). The machine may be fixed or hand held.
Patent GB-1535068-A (GB)
Title: Gripping collar
IPC: H01R4/60
Filed: 1976-11-17
Abstract: 1535068 Gripping collar W FISCHER 17 Nov 1976 [24 Nov 1975] 47852/76 Heading E2B A gripping collar comprises two co-axial discs 1, 2 each having an eccentric circular hole 3, 4, and a sleeve 5, also having an eccentric hole 6. The discs 1, 2 and internal sleeve 5 are able to turn relative to one another and are held axially by two annular peripheral ribs 7, 8 at the ends of the sleeve 5 and which engage in two corresponding grooves in the discs. Rotation of one disc relative to the other from the all in-line position causes a reduction of the section of the passage through the holes and enables a gripping effect to be obtained on e.g. an electric cable passing therethrough.
Patent GB-1373397-A (GB)
Title: Wire bonding means
IPC: H01L21/60
Filed: 1971-10-14
Abstract: 1373397 Welding by pressure; flame cutting; interconnecting terminals J C DIEPEVEEN 14 Oct 1971 [14 April 1971] 47934/71 Headings B3R B3A and B3V A wire bonding machine for bonding a wire to a workpiece such as an integrated circuit chip or terminal associated therewith and which is capable of bonding the wire at successive locations comprises a vertically movable slide 24 adapted to be moved from a home position to a first position (at which a first bond may be made) to a subsequent intermediate position (to provide a wire loop), to a second position (for a second bond to be made) and to return to a home position, the movements and positions of the slide being controlled by cam and lever means which, in order to prevent vibrations arising from impact of the slide actuating levers with the control cams, incorporate kneeaction means in the levers to permit continual contact with the cams. The slide supports an electrically heated bonding tool 72 comprising a capillary tip through which wire may be drawn from a spool mounted on the machine, the bonding tool being pivoted by cam controlled means at the first and second positions of the slide to press the wire against the work and apply heat thereto to form a weld. The applied pressure is controlled by a spring 80. A pivotally mounted unit comprising a wire severing torch 202 and wire clamping device 204 swings in a horizontal plane towards the tool after the last bond to allow the torch to sever the wire extending from the tool 72 to the last weld and at the same time to provide a ball end to the wire still projecting from the tool, and to allow the wire clamp to grasp and remove the surplus wire end 282 extending from the last weld. The surplus piece 282 is subsequently released to vacuum pick-up means. An adjustable drag unit controlled by an adjustably positioned counterweight connected to one of the jaws of the unit tensions the wire extending from a supply spool to the bonding tool.
Patent GB-1407317-A (GB)
Title: 3,4,dihydro-2h-pyran-2,4-diones and the preparation and compositions and uses thereof
IPC: C07D309/36
Filed: 1973-10-16
Abstract: 1407317 Plant growth regulating agents NIPPON SODA CO Ltd 16 Oct 1973 [20 Oct 1972 25 Dec 1972 (2)] 48083/73 Heading C1B [Also in Division C2] Agents for regulating the growth of plants (e.g. for inhibiting the growth of lawn grasses and new buds) are novel compounds of Formula III and their metal salts: wherein X is hydrogen or halogen; R 1  is C 1-6  alkyl or phenyl; R 2  is C 1-20  alkyl, C 1-20  haloalkyl, phenyl, phenyl substituted by halogen or -NO 2 , benzyl, phenoxymethyl or 2-phenylvinyl; and R 3  is hydrogen, C 1-10  alkyl, C 2-6  alkenyl, C 2-6  alkynyl or benzyl, with the provisos that R 1  and R 2  do not both represent CH 3  groups and that R 2  does not represent a C 7-20  haloalkyl group when the agent is a metal salt.
Patent GB-1396092-A (GB)
Title: Semi-permeable membranes
IPC: C08J5/18
Filed: 1971-02-18
Abstract: 1396092 Semipermeable cellulose acetate membranes BABCOCK & WILCOX Ltd 18 Feb 1972 [18 Feb 1971] 48416/74 Divided out of 1396091 Heading B5B [Also in Divisions B1 and B2] A semipermeable membrane is obtained by Casting a solution of cellulose acetate in dimethylformamide, dimethylacetamide, dimethylsulphoxide or triethylphosphate, evaporating some solvent from the film and then contacting the film with water at room temperature (8-25 C.), or above for at least 10 minutes. A minor proportion of an additional solvent or cosolvent may be added if the membrane is to have pores large enough to allow the passage of small molecules whilst preventing the passage of macromolecules, is required, but no inorganic salt swelling agents are permitted. The membrane may be flat or tubular, it may also be cast on to the inner wall of a reinforcing porous fibreglass tube.
Patent GB-1371055-A (GB)
Title: Flaw detection device
IPC: G01N27/90
Filed: 1971-10-19
Abstract: 1371055 Electromagnetic flaw detectors REPUBLIC STEEL CORP 19 Oct 1971 [19 Oct 1970] 48590/71 Heading G1N In an eddy current flaw detector a plurality of sensing coils are each mounted on a respective pivotable pick-up arm the arrangement being such that when the pick-up arms are pivoted towards a workpiece being tested its entire circumference is scanned as it moves along a work path. Four pick-up arms 30, 32, 34, 36 (one of which 34 is shown in Fig. 4) are each pivotably mounted to L-shaped brackets 14, 16, 18, 20 by pins 62, 68, 74, 80 and the brackets are mounted round an aperture in frame 12 through which a tube 46 to be tested is passed. Each pick-up arm e.g. 34 has mounted at its end by a ball and  socket member 90 a plate 86 biased counterclockwise by spring 92 and to which is mounted an arcuate sensing unit 42. Each sensing unit includes six series connected coils mounted between two arcuate insulative members and potted, 142. Pick-up arms 32, 36 are made to be shorter than arms 30, 34 so that when, in operation, the arms are pivoted towards the pipe 46 by air control 54 and pin 82, the sensing units 38, 40, 42, 44 interlock and cover the whole circumference of pipe 46. Eddy currents induced in the pipe are picked up by each sensing unit which is connected via a respective measuring channel to a solenoid actuator Fig. 8 (not shown).
Patent GB-1096995-A (GB)
Title: Polarizing interferometer microscope
IPC: G02B21/14
Filed: 1964-11-30
Abstract: 1,096,995. Polarizing microscopes. POLSKIE ZAKLADY OPTYCZNE. Nov. 30, 1964 [Nov. 29, 1963], No. 48635/64. Heading G2J. A polarizing interferometer microscope with a slit condenser diaphragm D, a polarizer P and an analyzer A, comprises two bi-refringent prisms W 1 , W 2  located behind an objective OB, one of these prisms W 2  being slidable in two directions, parallel to the objective axis and perpendicular to its own refractive edge, this edge being parallel to the slit S in the diaphragm D, while the second prism W 1  is positioned immediately behind the objective OB and is rotatable about the objective axis, so as to vary the duplication of images of objects under investigation when the polarizer and analyzer are crossed or parallel. Each prism W 1 , W 2  consists of three quartz wedges 1, 2, 3. The optic axis of the wedge 1 is perpendicular to its refraction edge and inclined at an angle # # 35-45 to the front face of the wedge 1. The optic axes of wedges 2, 3 are parallel to their refraction edges.
Patent GB-1391314-A (GB)
Title: Method and apparatus for cultivating mushrooms
IPC: A01G1/04
Filed: 1972-10-23
Abstract: 1391314 Mushroom cultivation AGRIFUNG SAS 23 Oct 1972 [25 Oct 1971] 48718/ 72 Heading A1E In a method of preparing mushroom substrate with mycelium, a layer of active material is mixed, brought to the correct conditions of temperature and humidity for reaching maturity, pasteurized and sown with mycelium in apparatus comprising a chamber A, lined with insulating material, in the floor of which a series of perforated pipes D, let into grooves, dispense air of controlled humidity and temperature. The air is supplied from a combination of heat exchanger and centrifugal fan B to an underfloor duct C from which pipes D extend.
Patent GB-994919-A (GB)
Title: Hydrocarbon fuels containing anti-microbial additives
IPC: C10L1/10
Filed: 1962-12-28
Abstract: A hydrocarbon fuel comprises at least one liquid or liquefied hydrocarbon of normal boiling point between - 200 DEG  C. and 400 DEG C. containing an antimicrobial composition comprising a silver compound having a solubility in water of at least 0.01 parts per million and at least one mole per mole of said silver compound of an amine, phosphine or thiourea as a solubilizing agent. Hydrocarbons and hydrocarbon fuels mentioned include diesel fuels, kerosene, jet fuels, residual fuels, liquid C6- 17 alkanes, and liquefied methane, ethane, propane and butane. Silver compounds mentioned include silver carboxylates, which may contain halogen, hydroxyl, cyanate, oxy-alkyl and oxicane groups; silver sulphonates; silver dithioureas; silver sulphates or phosphates; and silver acetylides.  Many types of amines are exemplified as the solubilizing agent.
Patent GB-1372258-A (GB)
Title: Apparatus for dispensing molten metal
IPC: F27D3/14
Filed: 1971-10-25
Abstract: 1372258 Discharging molten metal O H WARWICK CO 25 Oct 1971 [24 Nov 1970] 49441/71 Heading F4B [Also in Division F1] Apparatus for the discharge of molten metal from the melting chamber 11 of a furnace 10 comprises an inclined duct 16 in a silicon carbide wall 15 separating said chamber 11 from a dispensing chamber 13, a discharge duct 26 in the end wall 21 of said chamber 13 the inlet 27 of said duct 26 being located at a height between the ends 17 and 18 of the duct 16, and a sight tube 40 which incorporates a compressed air pipe 41. In operation, low pressure air is initially supplied through pipe 41 to reduce the molten metal level 20 to just below the end 18 of duct 16 filling duct 26 and an open expansion bowl 31. Thereupon the pressure is increased for a given measured time to drive metal out of the discharge duct 26 and the bowl 31 into a launder 33. The pressure is then released pipe 41 being opened to the atmosphere, whereupon metal in chamber 11 passes via the duct 16 into the dispensing chamber 13.
Patent GB-1245396-A (GB)
Title: Improvements in registration control means
Inventor: SCHNEIDER JACK MARVIN
IPC: B65H23/188
Filed: 1967-11-03
Abstract: 1,245,396. Automatic registration. CALMEC EXTRUFORM Ltd. Oct.30, 1968 [Nov. 3, 1967], No. 50034/67. Heading G3R. In an arrangement for automatically registering operations on travelling material relative to detected features already on the material at spaced intervals, relative longitudinal movement between the operating means and the material ceases for each operation and any error in registration automatically adjusts the position of the feature detector to correct the registration of the next operation. In Figs.3 and 4, a sheet 3 of thermoplastic, paper or cloth bearing successive images 1 printed in one colour, is moved horizontally from supply and tension rolls at the right of Fig. 3, over another roll at the left, and then vertically between plates 53 which overprint the second colour. When each register mark 5, printed between images in the first colour, is detected photo-electrically at 43, plates 53 are moved vertically into synchronism with the sheet and then horizontally towards the sheet to make the print in the second colour. When thus synchronized, photo-electric detectors 59, 61 on plates 53 detect the position of register marks 5 relative to the plates and, if three errors occur, a motor M 1  is operated to adjust detector 43 by a fixed amount longitudinally to improve registration of the next print. Timers re-set the error counters and ensure a minimum interval between successive operations of motor M 1 . Lateral deviations of the first colour images detected by photo-electric detectors 23, 25 cause simultaneous operation of motors M 3 , M 4  to move the supply roll sideways as necessary to correct the deviation. Further photo-electric detectors 77, 79 detect the lateral position of the first colour images relative to plates 53 and, if three errors occur, a motor M 2  is operated to move detectors 23, 25 sideways to correct lateral registration in a manner similar to that employed for correcting longitudinal registration. Skew of the sheet is detected by rise of one side or the other relative to proximity detectors 15, 17 which influence motors M 3  M 4  selectively to move the supply roll about a vertical axis and provide incremental correction of skew. The Specification also refers to register marks having variable properties in a longitudinal direction, double register marks, magnetic and proximity switch type detectors, and control of sheet drive to correct skew.
Patent GB-1066017-A (GB)
Title: Process for rendering high molecular weight organic polymers resistant to electrostatic charge
IPC: D06M13/402
Filed: 1963-12-18
Abstract: High molecular weight organic polymers are rendered resistant to electrostatic charge by incorporation of a substituted dicarboxylic acid amide of formula <FORM:1066017/C3/1> where R1 is H, an alkyl, C1- 26 alkenyl, aryl, arylalkyl or alkylaryl radical, or a metal or ammonium ion; R2 is H or CH3; R3 is a C2- 26 alkyl radical; R4 is an alkylene or alkenylene radical; and R1, R3 and R4 may also contain hydroxy or alkoxy groups.  The polymers may be polystyrene, polyvinyl chloride, polyethylene, polypropylene, polyethylene glycolterephthalate, polycarbonate, polyoxymethylene, polyacrylonitrile, polyacrylate, polymethacrylate, polyacetate, polyvinyl acetal, polyamide, polyurethane, an epoxide resin or a polyester derived from ethylene glycol/maleic anhydride/phthalic anhydride and hardened with styrene.  0.1-7% of the amide may be used which may be malonic acid N-methylstearylamide (methyl, ethyl or butyl) ester, malonic acid N-methyldodecylamide zinc salt, succinic acid N-methylstearylamide ethyl ester, glutaric acid N-dodecylamide ethyl ester, adipic acid N-methyldodecylamide stearyl ester, adipic acid N-stearylamide phenyl ester, pimelic acid N-methyl-stearylamide ethyl ester, traumatic acid N-methylstearylamide ethyl ester or maleic acid mono-N-(stearyl or methylstearyl) amide.
Patent GB-1483383-A (GB)
Title: Signal transmitting systems
IPC: H04N19/00
Filed: 1974-11-19
Abstract: 1483383 Analogue-to-digital and digital-toanalogue conversion SONY CORP 19 Nov 1974 [23 Nov 1973] 50128/74 Heading H3H In digitally encoding an analogue input signal, a bank of comparators C 1  ... C 15  compares it with respective reference levels which are incremented for alternate sampling periods by half a quantizing step, effectively doubling the number of quantizing steps available for a given number of comparators. The resulting output signals from the comparators are coded at 13, decoded at the receiver 14 and halfquantizing-step-amplitude pulses are added to alternate samples at 15. If the input analogue is a video signal, the switching signal So for the reference levels may be the vertical synchronizing signal. It is mentioned that other fractions of the quantizing step, e.g. <SP>1</SP>/ 3 , , <SP>1</SP>/ 5  could be added to the reference levels.