baber/WOPTO huggingface dataset:
Patent GB-970586-A (GB)
Title: New steroid compounds and processes for their preparation
IPC: C07J75/00
Filed: 1961-08-10
Abstract: The invention comprises pregn-4-en-3-one derivatives having the general formula: <FORM:0970586/C1/1> in which R2 represents the grouping =H(OY), R3 represents one of the groupings =H(CH2OY), =OH(CH2OY) or =(CH2OY)2, (where Y in the aforesaid groupings indicates an hydrogen atom or an acyl radical derived either from an organic carboxylic acid having 1-18 carbon atoms or from a mineral acid), and R4 represents the groups =H(OH) or the oxygen atom =O and their corresponding 3-ketal derivatives when R4 is the oxygen atom and R3 is H(CH2OY) or (CH2OY)2, a process for the production of 20, 21-dihydroxy -20- hydroxymethylene-pregn-4-ene-3,11-dione, in which the 21-hydroxy group is blocked by esterification prior to treatment thereof with an hydroxylating agent e.g. osmium tetroxide so as to yield upon saponification the desired 20,20-dihydroxy-20-hydroxymethylene-pregn-4-ene-3,11-dione and a process for the production of a 3-ketal of 20-hydroxymethylene-21-hydroxy-pregn-4-ene-3,11-dione and a 3-ketal of 20-bis-hydroxymethylene-21-hydroxy-pregn-4-ene-3,11-dione in which a 3-ketal of pregn-4-ene-3,11,21-trione is subjected to a Tollens condensation reaction with formaldehyde so as to yield a mixture of the desired 3-ketals.  The 21-hydroxy-20-methylene-pregn-4-ene-3, 11 - dione starting material is formed by reacting a 3-ketal of pregn-4-ene-3,11,21-trione with formaldehyde to yield the 3-ketal of 20-methylene-pregn-4-ene-3,11,20-trione which is reduced e.g. with sodium borohydride to obtain the 3-ketal of 21-hydroxy-20-methylene-pregn-4-ene-3,11-dione, which is deketalized to obtain the desired 21-hydroxy-20-methylene-pregn-4-ene-3,11-dione. The 3-ketal of pregn-4-ene-3,11,21-trione starting material is in turn obtained by oxidation of the 3-ketal of 21-hydroxy-trans-pregna - 4, 17(20) - diene - 3, 11-dione so as to yield the corresponding 3-ketal of trans-pregna-4,17(20)-diene-3,11,21-trione which is then reduced. Any of the 3,11b -dihydroxy compounds obtained in the above processes may be oxidized to the corresponding 3-keto-11b -hydroxy compound e.g. with manganese dioxide. Specifications 970,587 and 970,588 are referred to.
Patent GB-1359733-A (GB)
Title: Process for the treatment of wool to prevent or reduce felting shrinkage
IPC: D06M/
Filed: 1971-06-21
Abstract: 1359733 Reducing felting shrinkage of wool COMMONWEALTH SCIENTIFIC & INDUSTRIAL RESEARCH ORGANIZATION 21 June 1971 [19 June 1970] 29030/71 Heading D1P Felting shrinkage of wool is reduced by treatment of the scoured wool at 10-20%, preferably 15-20% moisture content with a gaseous atmosphere containing chlorine gas for 2-15 seconds and thereafter with a synthetic polymer. The gaseous atmosphere may be chlorine gas alone or mixed with air. The polymer may be an aqueous solution or dispersion of a polyethylene imine, polyamideepichlorohydrin, or a polyacrylic. The contact time of the chlorine is adjusted so that the amount of chlorine reacted with the wool is from 0.3 to 1.5%, preferably 0.5 to 1.0% based on the weight of wool. The wool is preferably in the form of loose wool or card sliver, but may alternatively be in woven or knitted fabric form. The wool is preferably passed through a chamber containing the gas. In a preferred embodiment, wool sliver, after scouring with a built, non-ionic detergent, rinsing and drying to 15% moisture content, and before or after top dyeing, is passed into a chamber containing chlorine at atmospheric pressure (residence time 2-15 sec; chlorine pick-up 0.3-1.5%) and then into an aqueous solution or dispersion of a synthetic polymer (pH 4-10) which also contains sodium sulphite or bisulphite to neutralise unreacted chlorine, and sodium carbonate or bicarbonate to adjust the pH of the wool to 3-4 and to deposit 0.5-10% by weight of the polymer on the wool. The treated wool is cured by drying and heating at 100C for 5 min., or by passing it through metal rollers heated to 150-400C. The polymer may be applied by spraying. The cured product may be semidecatized. The chlorination stage and the polymer applying stage may be separated by a manufacturing operation.
Patent GB-188521-A (GB)
Title: Process for the manufacture of a compound of c.c-isopropylallylbarbituric acid
Filed: 1921-11-01
Abstract: A double compound or quasi compound of C.C-isopropylallylbarbituric acid and 1-phenyl-2.3-dimethyl - 4 - dimethylamino-5-pyrazolone is obtained by melting the two components together in more or less equi-molecular proportions. The product has strong analgesic properties.
Patent GB-1338050-A (GB)
Title: Electrical system for an automobile vehicle
IPC: B60Q1/14
Filed: 1971-06-22
Abstract: 1338050 Road traffic signals on vehicles AUTOMOBILES PEUGEOT and REGIE NATIONALE DES USINES RENAULT 22 June 1971 [3 July 1970] 29141/71 Heading G4Q An electrical system for supplying current to a plurality of vehicle indicating or operating devices comprises a main switch 1, a second switch 9 operated by an intermittent signal generator 8, and further switches for allowing some of the devices to be operated either continuously or intermittently. The intermittent signal generator of Fig. 2 (not shown) comprises a movable blade, a heating wire, and a relay coil which operates switch 9. Flashing indicators 18 may relate to brake-pad wear, oil pressure, and choke, steering assistance, and hand brake operation. Turn indicators 23, 24 and repeating indicator 27 are controlled by switch 22. Windscreen washer pump motor 30 and windscreen wiper motor 31 may operate intermittently, the latter by the interposition of a frequency regulator 36, Fig. 3 (not shown). Switches 34, 37 enable the washer and wiper motors to be operated non-intermittently. For flashing all the direction indicator lamps in an emergency, switches 28, 29 are closed and switch 1 is by-passed by operation of switch 4. The rate of operation of the unit 8 remains constant whatever the load.
Patent GB-700230-A (GB)
Title: Improvements in or relating to wave guide distribution switches
Inventor: CHESTON THEODORE C
IPC: H01P1/12
Filed: 1951-12-12
Abstract: 700,230. Wave guide switch. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Oct. 9, 1952 [Dec. 12, 1951], No. 29152/51. Class 40(8) A wave guide distribution switch comprises a rotatable member having a number of wave guide arms IG1, IG2, IG3, and IG4, fed from a central axial guide J, a surrounding screen MS having an opening across which the open ends of the arms sweep during rotation, a second rotatable member having a number of arms with open ends OH1 ... OH9 arranged in a circle eccentrically mounted outside the screen, and gearing means which cause the ratio of the speed of rotation of the two members to be other than unity. In the example shown when the outer member has nine guides and the inner four, the outer member rotates at eight-ninths of the speed of the inner. At the instant shown energy is passing from guide IG1 to OH1 and the next arm IG2 will be brought into line with OH3 after a quarter turn of the inner member. After two and a quarter turns of the inner member each of guides OH1 ... OH9 will have received energy once. The switch is used to feed rotating arms in a radar aerial.
Patent GB-1133429-A (GB)
Title: Ditherable and tunable microwave tube having a dithered tuner actuator of fixed length
Inventor: HYNES RICHARD MARTIN
IPC: H01J23/207
Filed: 1967-06-23
Abstract: 1,133,429. Transit-time tubes. S-F-D. LABORATORIES Inc. 23 June, 1967 [24 June, 1966], No. 29169/67. Heading H1D. A ditherable and tunable microwave discharge tube having a microwave circuit and means for producing a stream of electrons for interaction therewith, includes a dithering and tuning structure having a movable portion within the envelope which is operable from outside the envelope by an elongated actuator mechanism extending through the envelope, means coupled to the actuator mechanism externally of the envelope for dithering it to frequency modulate the output signal, and means for supporting the dithering means from the envelope and moving it towards or away from the envelope to tune the output frequency. As shown, a magnetron having a cathode 4 disposed coaxially with respect to an array of cavities formed by anode vanes 9, alternate cavities being coupled to a surrounding cavity resonator 12 through axial slots 13, is ditherable and tunable by means of annular member 14, which is supported from and axially displaceable by a plate 16, a pistonshaped portion 19 of which is axially slidable within a cylindrical portion 46 of the tube envelope. Dithering is achieved by axial vibration of the plate 16 produced by a flexible rod 21 having one end secured within the pistonshaped portion 19, and the other end concentrically mounted on an eccentrically rotatable shaft 25 driven by a motor 29, a transducer 34 providing an output voltage signal indicative of the instantaneous frequency deviation produced by the dithering. The dithering equipment as a whole is mounted on a platform 36, which can be axially displaced, to tune the magnetron, by rotation of a worm shaft 42, which meshes with teeth on the platform 36, a potentiometer providing a signal indicative of the magnetron frequency. Stainless steel bellows 59 seals the envelope; bellows 57 spring loads the ring gear to prevent backlash, and serves as an oil seal for oil 58 which lubricates, and provides viscous damping for, the dithering mechanism.
Patent GB-636703-A (GB)
Title: Improvements in or relating to rotary fluid seals
IPC: F16J15/38
Filed: 1947-10-31
Abstract: 636,703. Stuffing-box substitutes. CRANE PACKING CO. Oct. 31, 1947, Nos. 29180 and 29181. Convention dates, Dec. 13, 1946. [Class 122(v)] In a device for effecting a fluid-tight seal between relatively rotatable machine elements 12, 13, comprising a ring 29 of resilient deformable material for effecting a seal between a sealing washer 16 and one of the elements (12), a retainer 25 having a cylindrical wall 24 telescoped with respect to the washer 16 and having a radial wall 26, and resilient means such as a spring 32 compressed between the radial wall and the washer, has means on the radial wall engaging the said one element (12) to prevent relative rotation therebetween. As shown in the Figure, said means comprises an outer cylindrical wall 30 whereby the retainer is press-fitted into a recess 28 in the element 12. In another embodiment the radial wall is formed with protuberances which fit into recesses in said one element. A plurality of lugs 31 formed in the wall 24 extend into recesses 23 in washer 16 and prevent relative rotation between the washer and retainer whilst permitting axial movement therebetween. The seal is made unitary by a flange 35 which is turned up after the seal has been assembled.
Patent GB-1460930-A (GB)
Title: Mechanical logic switching device
IPC: G11B19/16
Filed: 1974-07-02
Abstract: 1460930 Controls for sound-recording apparatus PLESSEY CO Ltd 12 June 1975 [2 July 1974] 29192/74 Heading G5R In a switching assembly, e.g. for a cassette recorder, having at least record, stop and standby switches each biased to a rest position and three logic bars 48, 50, 52 with respective biasing springs 49, 51, 53, the standby switch 14 has a first cam surface 26 of which a first or a second part engages the first bar 48 according to whether the switch is at rest or depressed, the stop switch 12 has a first non-latching cam surface 73 which, on depression, moves the first bar 48 to release the standby switch 14 if depressed, the record switch 10 is freed for depression by depression of the standby switch 14 which by its second cam surface 30 moves the second bar 50, and the stop switch 12 has a second non-latching cam surface 71 which, on depression, moves the third bar 52 to release the record switch 10 if depressed. As shown, a solenoid 60 momentarily moves the first and third bars 48, 52 to release any depressed switches when the recorder is first switched on or at the end of a tape.
Patent GB-1480838-A (GB)
Title: Process for the production of polyhydroxy compounds
IPC: C07C43/10
Filed: 1974-07-02
Abstract: 1480838 Polyhydroxy compounds VYZKUMNYUSTAV PRE PETROCHEMIU 2 July 1974 [2 July 1973] 29207/74 Heading C2C A polyhydroxy compound is produced by (1) condensing formaldehyde with a higher aldehyde and/or a ketone in an alkali medium to effect reaction of at least 70% of the higher aldehyde and/or ketone and to produce a reaction mixture containing unreacted formaldehyde, and (2) converting unreacted formaldehyde to formic acid and methanol by contacting the mixture with a catalyst comprising an element or a compound of an element of groups Ib, IVa, VIb, VIIb and VIII of the Periodic system or arsenic in the presence of an alkaline agent which binds the formic acid, and optionally in the presence of an inhibitor which inhibits formaldehyde self condensation. A fixed catalyst bed or a suspension may be used, of catalyst containing for example Cu, Ag, As, Co, Cr, Mn, Mo, Ni, Pb, Pd or Ru. The alkaline compound of step (2) is conveniently the same as that of step (1), e.g. calcium or sodium hydroxide. The inhibitor may be boracid acid. In examples, pentaerythritol is obtained from acetaldehyde, neopentyl glycol from isobutyraldehyde, trimethylolpropane from n-butyraldehyde and 2,2,6,6 - tetramethylolcyclohexanone from cyclohexanone.
Patent GB-810520-A (GB)
Title: Metal-tube extrusion press
IPC: B21C23/21
Filed: 1956-09-25
Abstract: 810,520. Extruding; billet piercing. SCHLOEMANN A.G. Sept. 25, 1956 [Oct. 3, 1955], No. 29253/56. Class 83 (4). A metal tube extrusion press has a billetpiercing mandrel 7 mounted in a mandrel holder 18 supported during the piercing stroke against a bush 20 in a mandrel cross-beam 17 but movable independently thereof in the direction of extrusion so as to permit the mandrel to move forwardly with the extruded metal, the support bush 20 being movable axially by means of an adjusting device 23. In the production of aluminium tube, heated aluminium billets 8 are inserted into the bore 5 of the billet container 4 and are first upset against the extrusion die 3 by means of the press ram 6 actuated by a fluid. pressure plunger 10. An extension 12 of the plunger is connected to a withdrawal cross-beam 13 which is in turn connected by adjustable rods 39 to the mandrel cross-beam 17 thus causing the mandrel 7 to move downwardly with the ram 6. The mandrel is then moved downwardly to pierce through the billet by double-acting hydraulic cylinders 33. The ram 6 then extrudes the pierced billet between the mandrel and die to form a tube, the mandrel 7 being permitted to move downwardly by the friction of the extruded metal, until an end member 28 at the end of the mandrel holder 18 engages a stop 41 at the top of the cross-beam 17. The member 28 carries a pair of plungers 50 operating in fluid damping cylinders for damping the independent movement of the mandrel. The adjustable screwed rods 39 determine the downward piercing movement of the mandrel. The mandrel holder 18 has a shoulder 19 which initially abuts against the bush 20 screwed within the mandrel cross-beam 17. This bush is adjusted by a worm and worm-wheel 26, 23. An adjustable stop 30, Fig. 2 (not shown), operates a switch 34 on the mandrel cross-head 17 for stopping the extrusion stroke immediately before the end member 28 engages the stop 41.
Patent GB-966115-A (GB)
Title: Substituted alkyne diols
IPC: C07C29/42
Filed: 1961-08-14
Abstract: The invention comprises compounds of general formula: <FORM:0966115/C1/1> wherein R1 is an alkyl, alkenyl, aralkyl or cycloalkyl group or a substituted or unsubstituted aryl group, R2 is a hydrogen or halogen atom, and R3 is an alkyl or aralkyl group or a substituted or unsubstituted aryl group, provided that R3 does not represent an n-propyl or iso-propyl group when R1 is a methyl group and R2 a hydrogen atom, and also provided that R1 and R3 do not each represent a substituted or unsubstituted aryl group; and their preparation by reacting a compound of formula: <FORM:0966115/C1/2> with a compound of formula R2-C­C-X, where X is an alkali metal atom or a group MgHal where Hal is a halogen atom, subsequently decomposing the metal derivative to yield the diol, and if desired subsequently reacting a product in which R2 is a hydrogen atom with a hypohalite to replace said hydrogen by a halogen atom.  a -Hydroxy-ketones II may be prepared either by reacting a -hydroxy-carboxylic acid derivatives with R1-containing Grignard reagents, or by the reaction sequence: <FORM:0966115/C1/3> where Me is a metal atom and R4 is hydrogen, alkyl or aryl.  Pharmaceutical compositions comprise compounds I in conjunction with pharmaceutical carriers or excipients.  Oral administration (tablets, capsules, dragees, cachets, syrups, elixirs) is mentioned.  The compounds have sedative, hypnotic and narcotic effects.
Patent GB-423885-A (GB)
Title: Improvements in the manufacture and production of acenaphthylene
IPC: C07C5/333
Filed: 1933-10-23
Abstract: Acenaphthylene is obtained by passing vapours of acenaphthene at temperatures of 500--850 DEG  C. and at reduced or atmospheric pressure over a solid dehydrogenation catalyst comprising carbon or silicon or a non-reducible heavy metal compound.  The acenaphthene may be diluted with an inert gas.  Specified catalysts are crystalline silicon, lustrous carbon, oxides and sulphides of zinc, chromium, molybdenum, tungsten, uranium, and manganese, and salts in which these oxides and sulphides are the acidic component or the basic component is an alkaline earth metal, a rare earth metal, titanium, zirconium, hafnium, thorium, zinc, or aluminium.  The catalysts may in addition contain other alkaline earth metal or alkali metal compounds.  They may be mounted on carriers and may be treated with hydrogen-containing gases before use.
Patent GB-909398-A (GB)
Title: Screw-cutting lathe
Inventor: HADEKEL RUBEN
IPC: B23Q35/123
Filed: 1958-09-12
Abstract: 909,398. Electric copying machines. SPERRY GYROSCOPE CO. Ltd. Aug. 21, 1959 [Sept. 12, 1958], No. 29356/58. Class 38 (6). [Also in Group XXII] A lathe is provided with a feeler-member 15 arranged to be moved along a path parallel to the lathe bed in accordance with the rotation of the work-spindle 5, and an electrical device 10 having one part 11 fixed relative to the saddle and another part 13 movable relative thereto by the feeler-member, the saddle being movable along the bed by a motor 2 arranged to be controlled from the electrical device to maintain its two parts in a predetermined relationship. One saddle 1 is driven by an hydraulic motor 2 which drives through gearing a pinion 20 co-operating with a rack 21. Hydraulic fluid is supplied from a source 6 through an electro-hydraulic control valve 7. The latter is operated by an electrical copying device 10 carried by an adjustable support 11 attached to the saddle. The feeler-member 15 biased by a spring 17 forms part of the copying device and this is adapted to engage a pilot lead-screw 3. The lead-screw is driven from the headstock spindle 5 through change-gears 4. A switch 51 enables an additional " velocity-error " signal described in Specification 29351/58 (referred to in the Provisional Specification) to be applied to the arrangement.
Patent GB-663560-A (GB)
Title: Improvements in or relating to means for loading wagons, more particularly mining trams
IPC: E21D9/12
Filed: 1948-11-11
Abstract: 663,560. Loading wagons. DOLLERY & PALMER (PNEUMATIC TOOLS), Ltd. Nov. 11, 1948. [Feb. 10, 1948] No. 29364/48. Class 78 (iv). A loading station for charging a succession of wagons and having spillage-prevention members carried by endless chains or the like and driven in synchronism with the travel of the wagons, said members being spaced apart to correspond with the gaps between the wagons so as to cover these gaps during the travel of the wagons below the filling means, is characterised in that the said members have such a length that they overlap the ends of the wagons, and the lateral walls of the wagons are shielded by cover plates which overhang these walls; the overhang of the said members and cover plates being such that substantially triangular empty spaces remain the loaded wagon adjacent the ends and lateral walls thereof into which any excess material can enter which would otherwise spill over when the wagons have left the loading station. As shown, material is fed into wagons down a shoot 7, and the spillage-prevention members 2 are carried by endless chains 3 extending round guides 4 supported on a framework 1. Each member 2 comprises a cover-plate which extends over the gap between adjacent wagons and overhangs the ends of the wagons whereby in conjunction with metal sheets 12 overhanging the side walls of the wagons, a space 11 is left in each wagon after filling into which any excess material loaded into the wagon may slip by reason of vibration during later movements of the wagon. A drive member 5 is pivotally mounted on each member 2 which during forward movement of the wagons is engaged by the inner surface of the rear end wall of the wagon whereby the chains are moved at the same speed as the wagons. On reverse movement of the wagons, these members 5 pivot upwards into a slot in the members 2 so that no reverse movement is transmitted to the chains. Adjacent the position where the wagons leave the station, there are arranged two inclined metal sheets having front edges shaped as knives for cutting-up large lumps likely to cause stoppages. These sheets are staggered with respect to one another in the direction of travel of the wagons. Specification 575,288 is referred to.
Patent GB-639232-A (GB)
Title: Improvements in or relating to machines suitable for cementing shoe parts
IPC: A43D25/18
Filed: 1948-11-04
Abstract: A machine as described in the parent Specification is provided with means for applying coat <PICT:0639232/III/1> material to the bottom of a shoe simultaneously with the application of cement to the material disposed about the periphery of the shoe.  A shoe S having a platform sole 10 and a platform cover 12 is positioned so that the cover 12 is gripped between a hollow applying roll 14 and a work-supporting roll 16 and so that the platform sole 10 is in engagement with the tips of the tubular fingers of a nozzle 18, which is made up of a series of flat tubular delivery plates or fingers, each of which is provided with a passage communicating with a supply of coating material, and is spring-urged outwardly so that the operative ends of the fingers can accommodate themselves to a curved surface. The nozzle 18 is preferably associated with the shoe-bottom-supporting means which guide the shoe through the machine.  Means may be provided for supplying a solvent to the external surfaces of the tubular fingers to free them from congealed coating material.
Patent GB-1557486-A (GB)
Title: Computer to tape deck interfaces
IPC: G06F3/06
Filed: 1976-07-14
Abstract: An interface for coupling a computer to a plurality of magnetic tape transports, including dual-density transports and combinations of high and low density transports. The interface includes an automatic density selector for detecting the density of data stored on a tape prior to reading and for storing this information for as long as the tape is being used. A read-only memory and other logic circuitry translate computer operating commands into commands readable by a transport formatter. The interface also couples digital data between the computer and the formatter and converts formatter status information into language readable by the computer.