baber/WOPTO huggingface dataset:
Patent GB-1417002-A (GB)
Title: Polymerisation process
IPC: C08F295/00
Filed: 1972-03-01
Abstract: 1417002 Polymerization of butadiene BP CHEMICALS INTERNATIONAL Ltd 13 Feb 1973 [1 March 1972] 9536/72 Heading C3P Butadiene or a mixture of butadiene containing not more than 50 mole per cent of other monomers is polymerized in a 2 stage process in a substantially oxygen gas free environment wherein the second step (and preferably the first step) is carried out in the presence of (a) an ether or tertiary amine and (b) a chain transfer agent which is an aromatic hydrocarbon containing at least one hydrogen atom capable of replacement by a lithium atom and the steps comprise (1) contacting 1 to 30% by weight of monomer with an organolithium compound soluble in the reaction medium, so that the mole ratio of monomer to the lithium compound is 1 : 0À005 to 1 : 0À25 at -60‹ to 150‹ C. and allowing polymerization till all the lithium compound has reacted and (2) adding to the polymerization mixture thus obtained at least one alkali metal compound soluble in the reaction medium and selected from Na or K hydrocarbons having at least six carbon atoms in the hydrocarbon radical, Na or K alkoxides and NaB tetraphenyl so that the mole ratio of organo Li compound in step 1 to the alkali metal compound used in step 2 is in the range 20 : 1 to 1 : 2 adding the remaining 99-70 wt. per cent of monomer and allowing further polymerization at - 20‹ to + 120‹ C. The polymerization may be carried out in the presence of diluent. The products have 20 to 90% of 1,2 polymerized units and numbers average molecular weights of 500 to 20,000. In the examples butadiene is homopolymerized in toluene Œ isobutane in the presence of tetrahydrofuran using n-butyl lithium in stage (1) and Na or K tertiary butoxide or NaB tetraphenyl in stage (2) and the polymerization is terminated by the addition of ethanol containing butylated hydroxy toluene.
Patent GB-107647-A (GB)
Title: Improved Apparatus for Measuring the Frequency of Electrical Currents.
IPC: G01R23/00
Filed: 1916-07-06
Abstract: 107,647. Marconi's Wireless Telegraph Co., and Shoenberg, I. July 6, 1916. Vacuum tubes. - An exhausted vessel D containing two hot electrodes serves as a current limiting device in a circuit for measuring frequency.
Patent GB-746020-A (GB)
Title: Apparatus for reinforcing the lips of inner soles
Inventor: ALLGAYER AUGUST
IPC: A43B15/00
Filed: 1951-11-19
Abstract: 746,020. Reinforcing insole lips. SCHUMASCHINEN-GES. HANKE & CO. Nov. 19, 1951, No. 9574/55. Divided out of 734,343. Class 17 (1). Apparatus for applying a reinforcing adhesive tape 5 to an insole 1 comprises combined pressure and feed rolls 33, 34, which apply the tape to the lip 4, and a reciprocating presser foot 35 which applies the tape to the insole face. A roller 36 affords counter prcssure.
Patent GB-164905-A (GB)
Title: Improvements in seats and like articles of furniture
IPC: A47C7/42
Filed: 1920-04-06
Abstract: 164,905. White, F. O. April 6, 1920. Seat bottoms and backs. - A ventilated seat &c. comprises a base-plate 4 and seat element 5 held in constant spaced relationship by supports 6, together with a backplate 7 and a back 8 similarly held by supports 9, the base-plate and back-plate being secured together, as by springs 10. The seat element 5 and back 8 are preferably smaller than and mounted concentric with the members 4 and 7 respectively.
Patent GB-550593-A (GB)
Title: Process for the manufacture of d(+)-pantothenic acid
IPC: C07C233/46
Filed: 1941-07-29
Abstract: 550,593. Pantothenic acid. HOFFMANNLA BOCHE & CO. AKT.-GES. July 29, 1941, No. 9626. Convention date, Sept. 19, 1940. [Class 2 (iii)] d(+)-Pantothenic acid is prepared by crystallising the quinine salt of racemic pantothenic acid from ethyl alcohol, separating the crystallized quinine salt of 1( - )-panthothenic acid, evaporating the mother liquor and crystallizing the residue so obtained from acetone to obtain the pure quinine salt of d( + )-pantothenic acid. The free acid is then obtained by splitting the quinine salt in the usual manner. An example is given of the process.
Patent GB-102026-A (GB)
Title: Improvements in or relating to Domestic Firegrates.
Inventor: SIDEBOTTOM HENRY
IPC: F24B1/195
Filed: 1916-07-08
Abstract: 102,026. Sidebottom, H. July 8, 1916. Grates.-A fuel-holder intended to replace the front bars and bottom grate of an ordinary fireplace consists of a dished brick b with sides c of marble or other ornamental or different material dovetailed, cemented, or otherwise secured to it, and a bottom grate f fitted in a groove d on the brick b and on ledges e on the sides c. The grate f has a rounded or other ornamental edge g, and a fret is fitted beneath it. The back b has a V- section projection j.
Patent GB-813951-A (GB)
Title: Self-starting synchronous motor
IPC: H02K7/118
Filed: 1957-03-25
Abstract: 813,951. Synchronous motors. KOHLHAGEN, W. March 25, 1957, No. 9641/57. Class 35. In a synchronous motor, the permanent magnet rotor is coupled to the driven member through a device providing free lost motion, the rotor being permitted to run in one direction only. As shown in Fig. 9 a pinion 68 on the shaft of the bar magnet rotor 24 meshes with gear 90 loosely coupled to a pinion 92 driving wheel 94 on the output shaft 88, the wheel 94 being attached to a disc 106 engaged by a friction pawl to ensure rotation in the desired direction. The rotor which may carry a non-magnetic disc 72 to give a flywheel effect, co-operates with an imbricated pole stator in a cup secured to the gear casing. The loose coupling is provided by the curved member 134 shown dotted, having a hub secured to the pinion 92 and rigid and resilient arms 138, 136 respectively with ends bent into slots 154, 152 in gear 90. In Fig. 14 the coupling comprises a spring strip 184 with one end bent to rest on the side of the rotor and the other end anchored in the hub 188 of a pinion 190 free on a shank integral with the rotor. In Fig. 16 a spring finger 228 anchored on a gear 222 rotatable independently of the rotor except by engagement of the end of the finger with a pin 232 on the rotor projecting into a slot in the gear 222. Specification 732,039 is referred to.
Patent GB-539341-A (GB)
Title: An improved visor for motorists, skiers and the like
IPC: A61F9/02
Filed: 1940-06-03
Abstract: 539,341. Cleaning visors. KRUMMENACHER, F. June 3, 1940, No. 9664. [Class 138 (i)] [Also in Group XX] The face piece of a visor is transparent and has an arcuate contour in side elevation ; it is provided with a wiper arm which is rotatable about a horizontal axis, is pulled upwards by a spring and has means whereby it may be pulled downwards by the wearer. As shown, a spherical celluloid, splinter-proof glass, or other transparent sheet a is supported by straps b, c, and has projections d<SP>1</SP> in which a wiper comprising inner and outer stirrup members e' is pivoted. Springs f hold the wiper in its uppermost position, and strings g, securable to a jacket button, permit wiping to be effected by upward movement of the head.
Patent GB-127998-A (GB)
Title: Improved Means for Controlling the Supply of Combustible Mixture to Internal Combustion Engines.
Inventor: KEITH JAMES
IPC: F02M21/00
Filed: 1918-06-13
Abstract: 127,998. Keith, J., Keith, G., and Whatmough, W. A. June 13, 1918. Addition to 127,631. Vaporizer, external.-A vaporizer to be used in the system described in the parent Specification comprises a number of lenticular chambers A', A<2>, A<3> each divided by a plate perforated at the edges and connected together by a pipe which terminates in a cylindrical chamber A<4>. It is enclosed in a chamber C with baffles E through which the exhaust gases pass. The outlet valve H from the vaporizer, which is in the form of a plug cock, is adjusted by a governor G<2> of the piston type which is acted upon by the pressure on the delivery side of the valve H and the atmosphere, the air being supplied to the mixing chamber at atmospheric pressure. The liquid fuel is supplied to the vaporizer by a pipe B, and fuel which condenses after passing the valve H is re-evaporated in the chamber A'. The escape of vapour through the valve N to the mouth L of the induction pipe of the engine is controlled by a handle P passing through the dash-board of a motor-car. The valve H may be a lift valve or a hollow cylindrical slide valve with lateral perforations of graduated size. The vapour may be superheated by passing through the exhaust outlet F on its way to the induction pipe. The liquid fuel valve may be adjustably connected to the engine throttle valve. There may also be in the liquid fuel pipe a stop valve which is closed bv a spring and opened by the suction of the engine.
Patent GB-253486-A (GB)
IPC: H04R7/20
Filed: 1926-04-13
Abstract: 253,486. Hopkins Corporation, (Assignees of Hopkins, M. C.). June 11, 1925, [Convention date]. Diaphragms; magnetic instruments; loudspeakers.-A loud-speaker has a large conical diaphragm, of stiff paper or the like, mounted under radial tension by a flexible rim which gives freedom for axial movement of the cone. As shown, a flat flexible rim is formed on the diaphragm 4 by cutting radial slots 4<a>, Figs. 11, and 12, in the periphery and bending the tabs so formed into a plane normal to the axis of the cone. This rim is cemented to a ring 8 in such a way that the cone is under radial tension and is free to vibrate substantially as a whole. Triangular portions 4b, Fig. 5, may be removed at the inner ends of the radial slits to increase the flexibility of the rim. The centre of the diaphragm is connected by a rod 19 to a vibratory reed 18 of an electromagnetic device forming the subject-matter of Specifications 253,080 and 253,487. This device is carried centrally by a metal spider 6. The whole apparatus is contained in a flat case comprising a rectangular frame 1 and front and back perforated covers 31, preferably of woven cane.
Patent GB-714411-A (GB)
Title: Improvements in or relating to hydraulic brake systems
IPC: B60T11/228
Filed: 1950-04-20
Abstract: 714,411. Hydraulic brakes. AUTO UNION AKT.-GES. April 20, 1950 [April 20, 1949], No. 9751/50. Class 103(1) In a hydraulic brake system, especially for motor vehicles, in which the master cylinder assembly includes a main piston 8 and a spring-loaded precompression piston 10 for maintaining pressure in the brake circuit when the brakes are inoperative, the pistons are of the same diameter and the stroke of piston 10 is such that its swept volume exceeds normal operating requirements, whereby on the braking stroke the pistons normally advance together, the force in the compression spring 13 remaining constant, and displacement of liquid past piston 10 being avoided, while in addition provision,.such as a groove 21 in the wall 20 of the master cylinder, is made to permit liquid to flow past piston 10, with piston 8 in the " off " position, if the pressure in the brake circuit should rise and move piston 10 back beyond its normal " off " position. Instead of the groove 21, a projection may be provided in the cylinder wall to deform the lip of the piston washer 18. In the event of piston 10 engaging an abutment 16 at the end of the master cylinder, due 'for example to excessive leakage, forward movement of piston 8 forces liquid past the washer 18 into the brake circuit, and the pistons are thus returned to their normal distance apart on the return stroke. Specification 539,821 is referred to.
Patent GB-1523419-A (GB)
Title: Touch-sensitive control device
IPC: E05F15/00
Filed: 1977-03-08
Abstract: 1523419 Retractive switches MIDLANDROSS CORP 8 March 1977 [2 April 1976] 09763/77 Heading H1N A touch sensitive device for mounting on an edge of a vehicle door comprises an elongate flexible housing 6, one side 12 of which is rigidly supported by a door edge and the distal side 8 of which flexes in response to manual pressure to operate an electrical switch 26 received within a passageway 8 in the distal side 8, the switch 26 controlling an electronic circuit for a door opening mechanism. A switch operating cable 29 is anchored at one end of the passageway 8 and is biased by a spring 32 at the other end to hold a plunger 44 of the switch 26 in a closed or open position, the switch 26 assuming the other position upon deflection of the distal side 8 of the housing 6. The switch 26 and cable 29 are adjustable towards and away from each other.
Patent GB-938129-A (GB)
Title: Double-acting conveyor band controls
IPC: D21F1/36
Filed: 1961-03-17
Abstract: 938,129. Guiding wire-cloths of paper-making machines &c. J. M. VOITH G.m.b.H. March 17, 1961 [March 26, 1960], No. 9784/61. Class 96. [Also in Group XXX] A guide roller for correcting wander of endless bands, e.g. felts, cloths and screens in papermaking machines has a stationary bearing at one end, and at the other, a bearing housing 8 which is pivotally connected by arms 20, 21 (Fig. 2) at 17 to a hollow frame 3 adjustably secured to the main frame 1 of the paper machine. The bearing housing 8 is acted upon by servomotors 4, 5 of piston or diaphragm type articulately connected to it at 18, 19, the arrangement being such that the line of force (i.e. axis) of each servomotor includes with the arms 20, 21 (when bearing housing 8 is centrally disposed) an angle of not less than 30 degrees and less than 90 degrees, preferably 60 degrees. In servomotor 4 a piston 23 is moved against a return spring 29 by air pressure which is supplied through flexible line 31 and which is responsive to means detecting the wander of the band, whilst in servomotor 5 a roller diaphragm 26 takes the place of the piston. The servomotors 4, 5 are pivotally mounted at 15, 16 in cavities 6, 7 sealed by sleeves 9, 10 and end covers 13, 14. Exhaust air escapes through apertures 33, 33a, 34.
Patent GB-568019-A (GB)
Title: Improvements in and relating to furnaces, combustion chambers and the like
IPC: F23K3/06
Filed: 1943-06-18
Abstract: 568,019. Boiler &c. furnaces. HOLMES,C. E. June 18, 1943, No. 9836. [Class 51 (i)] In furnaces comprising a fuel shed over which the fuel is fed and under which air is introduced such as described in Specification 544,054, a horizontal opening or openings are provided in one or more walls of the furnace in each of which the fuel shed is arranged to form a fuel feed orifice in the upper portion of the opening and an air blast orifice at'the lower portion. As shown in Fig. 1, fuel shed units are introduced through openings in the side walls of a boiler furnace, each unit comprising a water-cooled base 1 with side cheeks 2 and a water-cooled fuel shed 3. A stay 6 connecting the side cheeks 2 may support the boiler wall 7. Fuel is introduced from a hopper 8 through an orifice 4 and rests on the base 1 and is supplied with air for combustion through the opening 5 beneath the fuel shed 3 by a tuyere 9. When the boiler has a water-cooled base, the floor 1 of the unit is omitted. When the furnace to which the unit is applied is provided with water-cooled firebars, the spaces between the bars are filled in and the fuel shed units are arranged in openings in the furnace wall above the level of the firebars, the base 1 being omitted. Fig. 5 shows a boiler furnace fed with fuel from a hopper controlled by slides 23, 24 and provided with a fuel shed 18 having an air inlet 20a beneath. Fig. 8 shows a vertical boiler furnace having segmental fuel shed units 42 arranged in openings in the side walls.
Patent GB-537599-A (GB)
Title: Video-frequency signal-translating system
IPC: H04N5/16
Filed: 1940-06-05
Abstract: 537,599. Television. HAZELTINE CORPORATION. June 5, 1940, No. 9842. Convention date, June 9, 1939. [Class 40 (iii)] In order to stabilize " background-illumination " in a television receiver, the amplifying valve 21 feeding the image reproducer 18 has an output circuit 24 connected to a rectifier 26 arranged to introduce a bias in the input circuit of the valve 21 to which the unstabilized signal is fed from an amplifier 16 through a condenser 22. As shown, the connection between the output circuit 24 and the rectifier 26 is by way of a tapping 24a and a condenser 28. Specification 499,538 is referred to.
Patent GB-952456-A (GB)
Title: Improvements in or relating to continuously operable filter press apparatus
IPC: B30B9/20
Filed: 1960-03-21
Abstract: 952,456. Filters. A. J. A. ASPLUND. March 21, 1960 [March 23, 1959], No. 9853/60. Heading B1D. A continuously operable filtering apparatus, e.g. for the separation of fibrous material suspended in a liquid, comprises an interspace 69 into which the suspension is introduced through a pipe 78, between two drum-like press members 12 and 14 which rotate about horizontal or substantially horizontal axes in the same direction 34, the member 12 being disposed eccentrically within the member 14 so that the interspace 69 varies from a maximum width 36 to a minimum width 38 in the direction of rotation. The member 12 is mounted in bearings 20 and 21 so as to be movable horizontally by servomotors to vary the width 38. The filtrate passes through the perforate surfaces 84 and 104 through the passages 94, 96 and 120, 122, 124 respectively to a sump 100 and the cake is discharged by a screw 126. The horizontal movement and pressure applied by the servomotors, e.g. hydraulic motors, is controlled by a valve responsive to movement by each bearing 20 and 21 to ensure that even pressure is applied at the width 38 and that it remains constant along its axial length. A further embodiment describes a stationary semi-cylindrical slide housed in the central bore 122 of the member 12 and a series of radial tubes to remove liquid extending from the screen 104 to communicate by means of ducts with the bore 122 when they coincide with the interspace 69. The press members may have the form of superimposed double-cones.
Patent GB-1003955-A (GB)
Title: Method for continuous separation of ions
IPC: B01D59/42
Filed: 1962-03-14
Abstract: <PICT:1003955/C6-C7/1> <PICT:1003955/C6-C7/2> Two or more species of ions of the same sign are separated continuously from an electrolyte by feeding the electrolyte longitudinally into a body of particulate ion exchange resin confined on each side by longitundinal permselective membranes each of which leads to a chamber one containing a cathode and the other an anode, the current between which is at an angle, and preferably perpendicular to, the flow of electrolyte through the ion exchange resin.  The ions tending to separate in rectilinear flow are thus diverted at different rates, towards an electrode. Chambers 1, 2 packed with particulate ion exchange resin have permselective partitions 5, 6, 7, an anode 8, and cathode 9.  The electrolyte flows downwards through the particulate resin body at preferably up to 20 cms./hour, and a voltage of up to 10 V./cm. between cathode and anode, is applied.  The process may be applied to separating ions of alkali metals, Ca and Sr, Nb and Ta, Zr and Hf, Li6 and Li7, U235 and U238, and rare earth metals.  The ion exchange resins used include organic materials, e.g. styrenedivinyl benzene, and also inorganic bodies, e.g. synthetic zeolites. Zwitter-ion types may be used. In a modified apparatus, a cascade of cells is used, the effluents obtained from a later cell being returned to the main cell and to the cathode compartment of earlier cells.
Patent GB-568926-A (GB)
Title: Improvements in or relating to gauges
IPC: G01B5/08
Filed: 1943-06-19
Abstract: 568,926. Gauges. WOODWARD, F. E. June 19, 1943, No. 9915. [Class 106 (ii)] A plug gauge is formed from a length of tubing made of glass or other vitreous material or as a pressing made of similar material with recesses at each end shaped or moulded in the blank for receiving poppet centres to support the blank during the process of grinding the testing surfaces. As shown in Fig. 1 a glass tube 1 has testing surfaces 2 at each end, the ends of the. bore 3 forming poppet centres. The surfaces form a " go " and "no go " gauge the size of which is marked on an inserted label 8. As shown in Fig. 2, the gauge is formed as a glass pressing with recesses 6 forming the poppet centres.
Patent HK-170596-A (HK)
Title: Circuit arrangement
Inventor: DENNEMAN JAN WILLEM
IPC: H05B41/392
Filed: 1996-09-12
Abstract: The invention relates to a circuit arrangement suitable for operating a low-pressure mercury discharge lamp (IV) by means of a high-frequency pulsatory current comprising   circuitry (I) for generating the high-frequency pulsatory current with an amplitude A from a supply voltage, a modulator (II) for modulation into a substantially square-wave shape of the high-frequency pulsatory current with a modulation frequency f and a duty cycle DC, and   circuitry (V) for adjusting the duty cycle DC.   According to the invention, the circuit arrangement is further provided with     circuitry (VI) for adjusting the modulation frequency f.   This latter circuitry renders it possible to make the colour point of the light radiated by the lamp to a high degree independent of the value of the luminous flux. In addition, it is possible to adjust the colour point over a wide range for a given luminous flux of the lamp.   <IMAGE>
Patent HK-170795-A (HK)
Title: Tools and/or workpieces magazine
Inventor: OBRIST BASIL
IPC: B23Q3/157
Filed: 1995-11-02
Abstract: The magazine, having a fixed place in a manufacturing plant, is intended to cooperate with at least one machining device and with a handling device associated with said machining device in order to automatically exchange tools and/or workpieces on said machining device. The magazine comprises a rotating rack having a plurality of storing planes mounted upon another on a support for bearing the objects to be handled. Said rotating rack is designed as a separate constructional unit which is exchangeably inserted in a stationary part of the magazine, which stationary part comprises means for rotating said rotating rack. In this manner, the space needed by the auxiliary devices in the magazine station as well as the moving space of the handling device is considerably reduced, due to the fact that even in a prolonged operation of the manufacturing plant one sole magazine is sufficient, and that thus, for the exchange of the objects to be handled, the action of any grip means is limited to this sole magazine.
Patent HU-T50749-A (HU)
Title: Process for production of extracts for earthworms with different nutritive value
Inventor: PACS ISTVAN
IPC: C05F3/00
Filed: 1988-06-22
Abstract: Earthworm humus- sols. of varying compsns. are prepd. by leaching out with water nutrients micro-and macro- elements found in the humus. Soaking occurs pref. at 25 deg.C for 50-70 pref. 60 mins. During this period gradually 90-110 pref. 100 mls of a compatible chemical (as acetic acid) is added to a cubic meter of soaking water. The mixt. is allowed to settle for 24 hrs., followed by filtration. Another advantageous process is to choose min. leaching time as 28-35 mins., pref. 30 mins., and max. leaching time as 19-21 pref. 20 hours. Varying chemicals may be added during this time, the total of these being 100mls max. Chemicals are added in constant proportions and time intervals.
Patent HU-T46361-A (HU)
Title: Process for producing a 42867 antibiotic and pharmaceutical compositions comprising it
Inventor: RIVA ERNESTO
IPC: A23K20/195
Filed: 1987-07-22
Abstract: A novel antibiotic, A 42867, is prepared by cultivating the strain Nocardia sp. ATCC 53492, or an antibiotic A 42867-producing mutant or variant thereof, under submerged aerobic conditions in the presence of assimilable sources of carbon, nitrogen and inorganic salts. The antibiotic and its addition salts are useful in the treatment of infectious diseases and as growth promotant agents.