baber/WOPTO huggingface dataset:
Patent GB-1422386-A (GB)
Title: Bearing system for shafts which rotate at high speed
IPC: F16C17/08
Filed: 1973-09-28
Abstract: 1422386 Automatic control of position SKF INDUSTRIAL TRADING & DEVELOPMENT CO BV 28 Sept 1973 [4 Oct 1972] 45581/73 Headings G3N and G3R [Also in Division F2]  The vertical shaft 1 of a suspended rotor 12 has a shaped end 2 which is supported in a spiral groove cup bearing 3 by the attractive force of a magnet 5. A cushion 13, e.g. of rubber or plastics material or a spring bellows, prevents the transmission of vibrations from the rotor 12 to a housing 6. Undesired precessional movement of the rotor 12 is damped by an electromagnet 14 correctively energized from a circuit 10 in dependence upon position-deviation signals derived from a transducer 8. The shaft 1 may be horizontally disposed, and the magnet 5 may be an electromagnet energized in dependence upon signals derived from a position or speed responsive transducer Fig. 1 (not shown). Arrangements in which the repulsive force between magnets is employed to urge the shaft 1 into the bearing 3 are described with reference to Figs. 3 and 4 (not shown) and embodiments in which magnets are located remote from bearing 3 are described with reference to Figs. 5 and 6 (not shown).
Patent GB-1158264-A (GB)
Title: Substituted 1,2-Dihydroquinoline-N-Carboxylic Acids and -Thioncarboxylic Acids
Inventor: BELLEAU BERNARD ROLAND
IPC: C07D215/38
Filed: 1966-10-12
Abstract: 1,158,264. Substituted 1,2-dihydroquinoline- N-carboxylic and -thioncarboxylic acids. BRISTOL-MYERS CO. 12 Oct., 1966 [13 Oct., 1965], No. 45586/66. Heading C2C. Novel substituted 1,2-dihydroquinoline-N- carboxylic and -thioncarboxylic acids of the general formula wherein R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> are each hydrogen, chloro, bromo, iodo, fluoro, trifluoromethyl, C 1-6  alkyl, C 1 _ 6  alkoxy, C 1-6  alkylthio, C 1 _ 6  alkylsulphonyl, hydroxy, C 1 _ 6  alkanoyloxy, amino, alkoxycarbonylamino or a group of the formula (C 1 _ 6  alkyl) 2 N(CH 2 ) n - in which n is 0 or an integer from 1 to 3 inclusive, X is oxygen or sulphur, and R<SP>4</SP> is a monovalent non- aromatic radical containing only carbon and hydrogen and having less than eleven carbon atoms, halo-C 1-6  alkyl other than α-haloalkyl,or aralkyl, and non-toxic, pharmaceutically acceptable acid addition salts thereof are prepared by reaction of a compound of the general formula X = CZ-O-R<SP>4</SP>, wherein Z is a chlorine, bromine or iodine atom, with (a) a 1,2-dihydroquinoline of the general formula or (b) a quinoline of the general formula followed by reduction with an alkali metal borohydride; followed by optional conversion of the product to a non-toxic, pharmaceutically acceptable acid addition salt thereof. 1,2-Dihydroquinolines of the second general formula above are prepared by reduction of quinolines of the third general formula above. 5-Aminoquinoline is prepared by the hydrazine- Raney nickel reduction of 5-nitroquinoline. 1 - Ethoxycarbonyl - 5 - isocyanato - 1,2 - dihydroquinoline is prepared by distillation under vacuum of 1 -ethoxycarbonyl - 5 -ethoxycarbonylamino- 1,2-dihydroquinoline. Pharmaceutical compositions having analgesic, tranquilizing, sedative, depressant, anorexic and hypotensive activity comprise, as active ingredient, a substituted 1,2-dihydroquinoline- N-carboxylic or -thioncarboxylie acid of the first general formula above or a non-toxic, pharmaceutically acceptable acid addition salt thereof, together with an inert diluent or carrier.
Patent GB-1013251-A (GB)
Title: Additional alloys for welding and steel making
IPC: B23K35/30
Filed: 1961-12-21
Abstract: An addition alloy for adding to the flux for a coated arc welding electrode or for use in steel making contains 7-45% of one or more rare earth metals such as Ce, La, Pr, Nd and Sm, 3-45% iron, the balance except for impurities being silicon or manganese.  With Fe 3-15%, the alloy may further contain 2-25% calcium.
Patent GB-1022396-A (GB)
Title: Ski binding
IPC: A63C9/082
Filed: 1962-11-20
Abstract: 1,022,396. Ski-bindings. W. H. REESE. Nov. 20, 1963 [Nov. 28, 1962], No.45880/63. Heading A6D. A releasable binding for securing the heel of a ski boot to a ski comprises a plate 12 for attachment to the bottom of the ski boot heel said plate being provided with a central aperture 18 which is adapted to receive a cylindrical boss 15 upstanding from a plate 30 fixed to the ski, the boss having two pins 19 mounted in recesses therein, the pins being normally spring-urged outwardly of the boss to engage in grooves cut in the plate 12, thus locating and holding the boot heel in place on the ski. The pins 19 operate under the action of leaf springs 20 mounted in an aperture in the boss 15 and adjustable by means of screw 25, the outer ends of the pins being bevelled to co-operate, when the boot and ski are in their correct relative positions, with bevelled portions 13c formed in the pin-receiving grooves of the plate 12, the said grooves each comprising recesses 13a and 13b, one on each side of the portion 13c. Thus in the event of the boots tilting forwards, portions 13c of the heel plate cause pins 19 to retract against the action of springs 20 to release the boot from the ski, and in the event of the boot's twisting relative to the ski, the pins slide off the portions 13c into one of the recesses 13a or 13b so that again the plate 12 can pass up over the boss 15 and the boot is released from the ski.
Patent GB-1005604-A (GB)
Title: Apparatus for regulating the current supply to an electric hot plate
IPC: H05B1/02
Filed: 1962-12-07
Abstract: 1,005,604. Thermal switches. K. FISCHER. Dec. 7, 1962 [Dec. 9, 1961], No. 46287/62. Heading H2B. [Also in Division G3] A switch for automatically controlling the power supply to the element 1 of a hot plate comprises a rocker arm 2 movable, upon expansion of the diaphragm chamber 5 of an adjustable hydraulic temperature regulator, to open normally-closed contacts 7 adjacent its end 2a. The arm 2 has another end 2b which, should the temperature of the hot plate become excessive, engages a bi-metal strip 13 to open normally-closed contacts 8, the points of engagement of the ends of the arm 2 being adjustable by screws 9, 10, 11. Normally the contacts 8 are cyclically opened and closed by heating and cooling of the strip 13 in response to intermittent energization of its heater 12, the position of the strip 13 being adjustable relative thereto by a rocker arm 17 having an adjustable screw 18 engageable with a cam 16 carried by a spindle 6 rotatable to adjust the position of the chamber 5. Pretensioning of the strip 13 is adjustable by a screw 19. If desired, members 16, 17, 19 may be omitted, Fig. 1 (not shown). In another modification, Fig. 2 (not shown) the contacts 7 are normally open.
Patent GB-1242285-A (GB)
Title: An inverter controlled motor drive for machines with a fractional speed range
IPC: H02P27/048
Filed: 1968-09-30
Abstract: 1,242,285. Control of A.C. motors. LICENTIA PATENT - VERWALTUNGS - G.m.b.H. 30 Sept., 1968 [29 Sept., 1967], No. 46301/68. Heading H2J. [Also in Division G3] In an inverter controlled motor drive for a machine which is to be operated in a speed range which is a fraction (e.g. 30%) of the whole rated speed range of the motor and which requires a torque falling with the speed, the motor being fed with variable voltage and frequency by a forced commutated inverter-the motor is designed and constructed with such a relatively small stator/rotor air gap and air gap flux density and is supplied with such a low magnetization current that over the whole said fractional speed range, with the inverter output voltage maintained constant, the motor current including no load current is never greater than the motor current at the rated speed of the motor. Compared with the motor designed to operate at the normal rated full speed, the present motor has an increased number of stator turns in order that it will operate .at a specific applied voltage with reduced flux density and magnetizing current. This increases the back e.m.f. of the motor which is said to reduce harmonics in the inverter current. Also the short circuit reactance of the motor is increased and further limits overload peaks occurring across the thyristors at the moments of forced commutation. As shown, Fig. 1, the inverter is supplied with rectified constant voltage Ud via a smoothing or buffer capacitor C. Each of the controlled rectifier cells 1 to 6 comprises thyristors connected as shown in Fig. la and a quenching capacitor. Diodes 7 to 12 pass reactive current. The speed of the motor M is compared with a desired value in a known manner in a control unit St which controls the firing and quenching of the thyristors accordingly.
Patent GB-1067435-A (GB)
Title: Irradiated fuel reprocessing
IPC: C01G56/00
Filed: 1963-11-26
Abstract: Plutonium and fission products are separated from irradiated uranium-containing nuclear fuel by contacting a nitric acid solution of the fuel with a strong base quaternary amine type anion exchange resin to remove plutonium, and then evaporating to dryness the solution of uranium and fission products, and fluorinating the residue, fission product fluorides being separated by fractionation from uranium hexafluoride. The process is described in detail with reference to a diagrammatic flow sheet. Spent UO2 fuel is dissolved in strong HNO3, the acidity adjusted to 6-8 molar, and the solution passed through a bed of the resin which retains the Pu; the resin is washed with strong HNO3, and the Pu eluted with 0.4 to 0.8 molar HNO3.  Pu is absorbed from this solution on to a second anion exchange resin bed, which is washed and eluted to yield a solution of Pu nitrate free from fission products.  The effluent from the first resin bed containing U and fission products is evaporated and the residue calcined, nitric acid being recovered. The calcined oxides are fluorinated by treatment as a fluidized bed with F2 at 300-600 DEG  C.; a preliminary treatment with HF at 250-350 DEG  C. may be given.  Solid fission product fluorides are removed and UF6 and volatile fission product fluorides are separated by fractionation or by sorption on a bed of sodium fluoride. Instead of oxide fuels, metallic, carbide, nitride, or silicide fuels may be treated.
Patent GB-1091116-A (GB)
Title: Nitrogen enrichment of steel
Inventor: DOWNING OLIVER
IPC: C21C7/00
Filed: 1965-11-05
Abstract: Molten steel is enriched with nitrogen by adding iron nitride The iron nitride may be made by passing ammonia and hydrogen over hot iron oxide powder.  Alternatively it may be recovered from spent ammonia synthesis catalyst.
Patent GB-1332184-A (GB)
Title: Hatch cover and coaming
IPC: B63B19/26
Filed: 1970-10-02
Abstract: 1332184 Hatch covers ASSOCIATED CARGO GEAR AB 2 Oct 1970 [2 Oct 1969] 47037/70 Heading B7S In a hatch cover 1 in which sealing packing 3 is fixed around the cover, the packing projects downwardly from the cover so that when the cover is located centrally on the coaming the packing fits between a fixed packing receiving member 11 and a laterally displaceable compressing member 12. Hydraulic ram 16 clamps the packing between the receiving member and the compressing member to achieve a watertight seal between the cover and the coaming.
Patent GB-1106756-A (GB)
Title: Improvements in or relating to apparatus for steam treating textile materials
Inventor: NORTON DAVID EDWARD PEPLER
IPC: D06B19/00
Filed: 1965-11-09
Abstract: 1,106,756. Steam treating textile materials. SIR JAMES FARMER NORTON & CO. Ltd. 2 Nov., 1966 [9 Nov., 1965], No. 47405/ 65. Heading D1L. Each steam delivery pipe 13 which extends into a chamber 5 through which textile material is caused to run continuously for steam treatment has associated with it a superheating device 16 arranged externally of the chamber but closely adjacent thereto. Each pipe may have its own superheating device or a common superheating device may serve all pipes. The or each superheating device is mounted on an end wall 12 of the chamber 5 and consists of an insulated chamber 17 within which is housed a coiled portion 18 of pipe 13, which pipe extends back to a steam supply source. Associated with the coil is a heater, e.g. a gas burner 19, gaseous products passing out through outlet 20. The elongated treatment chamber has heated side walls 8 and a division wall 6, the textile material passing over guiding rolls 10, 11 with entry and exit being effected via an open bottom 9 of the chamber.
Patent GB-1119449-A (GB)
Title: Improvements in or relating to washing machines provided with washing liquid spray apparatus
IPC: B05B3/14
Filed: 1965-11-09
Abstract: 1,119,449. Dish-washing machines. CONSTRUCTRA-WERKE G.m.b.H. 9 Nov., 1965 [22 Dec., 1964], No. 47587/65. Heading A4F. [Also in Division B2] An apparatus suitable for producing spray jets in a dish-washing machine comprises a radial pump 2 having vanes 2a adapted to force liquid from a sump 1 into a rotatable housing 3, and a plurality of spray nozzles 8 mounted on the housing 3. The pump 2 is rotated by a motor 12 and the housing is rotated by the entraining effect of the liquid flow. The rotational speed of the motor 12 is periodically varied so that a torsion spring 10 connected to the housing and the sump causes the housing to oscillate. Some of the nozzles 8 are arranged vertically and others are disposed obliquely. The housing may be fitted with extensions 15, if required, or may support a second spray head (16), Fig. 2 (not shown) in a dishwashing machine having two cages (20), (21).
Patent GB-1119169-A (GB)
Title: Nuclear reactor plant
IPC: F22B1/18
Filed: 1966-10-24
Abstract: 1,119,169. Reactors. SULZER BROS. Ltd. 24 Oct., 1966 [1 Nov., 1965], No. 47659/66. Heading G6C. [Also in Division F4] Carbon dioxide coolant is circulated by blowers U through a reactor core R aid over heat exchanger tube banks E, used as a vapour generator. Each tube bank E comprises a number of parallel tube panels of ladder-like shape (see Fig. 3, and Division F4) supported on a hollow grid (not shown), the spaces between and around the tube banks E being sealed by cover-plates A to prevent the gas flow bypassing the tube banks. The tube banks E are accommodated in a duct K below the core R within a pressure vessel B, for example of concrete.
Patent GB-1191429-A (GB)
Title: Hydraulic Devices for Controlling Pressure Build-Up in a Clutch or Brake.
IPC: F16H61/06
Filed: 1968-10-08
Abstract: 1,191,429. Pressure regulating valves; valves. ZAHNRADFABRIK FRIEDRICHSHAFEN A.G. 8 Oct., 1968 [19 Oct., 1967], No. 47667/68. Headings F2D and F2V. An hydraulic device for controlling pressure build-up in a clutch or brake acting as a gearbox shift element comprises a pressure regulating valve 1, Fig. 1 having two piston portions 1À1, 1.2 respectively controlling supply and vent passages 7, 11 which have a regulated pressure take-off passage 8 disposed therebetween, the valve being loaded with the regulated pressure against the action of a compression spring 6 disposed between the valve 1 and a larger diameter piston 2 which is also loaded by the regulated pressure and a passage 12, which in the rest position of the valve 1 is connected to a vent 13, between the larger piston loading chamber 5 and a chamber 3 of the valve piston facing the larger piston. When pump pressure is supplied via passage 7 the initial take-off pressure in passage 8 is dependent on the pre-stressing of the compression spring 6. As the regulated pressure rises the pressure supplied to chamber 4 via passage 9 causes the valve 1 to move to the left further compressing spring 6, closing supply passage 7 and opening vent passage 11. Similarly the pressure supplied via passage 10 and throttle 10À1 to chamber 5 causes the piston 2 to move to the right also compressing the spring 6. The opening of vent passage 11 and closing of supply passage 7 is dependent on the equilibrium between spring force and loading pressure, the time taken to achieve the regulated pressure being dependent on the sizes of throttle 10À1 and piston 2. When the clutch is vented pressure falls in passages 8, 9, 10 and valve piston 1À2 moves to allow the pressure in chamber 5 to collapse quickly via passage 12 and vent passage 13 causing piston 2 to be moved back to its Fig. 1 position by spring 6. In a modification to give a final abrupt rise of regulated pressure up to the supply pressure the piston (2), Fig. 3 (not shown), engages an elongated valve stem (15) to cause the valve piston (1À1) to open the supply passage (7). In a further modification to give a non-linear rise of regulated pressure passage 10, Fig. 1, is replaced by a passage (14), Fig. 4 (not shown), including a throttle (14À1), arranged directly between the supply passage 7 and the chamber (5).
Patent GB-1467118-A (GB)
Title: Apparatus for feeding a machine for making non-woven fabrics
IPC: D01G23/00
Filed: 1975-11-19
Abstract: 1467118 Fibre feeders E FEHRER 19 Nov 1975 [23 Dec 1974] 47671/75 Heading DIN A feeding apparatus for a non-woven fabric making machine comprises a belt conveyer 1 overlain by a covering belt conveyer 2, each conveyer being air permeable and the intervening space being fed with fibres through a duct 4 the fibres being retained in a mass 7 against a downstream retaining means, a light sensor 6 being provided to stop fibre feed when its beam is interrupted by accumulated material and an air nozzle 5 being provided which extends parallel to the belts and is located at the lower end of duct 4.
Patent GB-1128298-A (GB)
Title: A method of isomerization of double bond in olefins
IPC: C07C5/25
Filed: 1965-11-10
Abstract: 1,128,298. Isomerisation catalysts. KURASHIKI RAYON, K.K. 10 Nov., 1965 [17 Nov., 1964], No. 47781/65. Heading B1E. [Also in Division C5] An isomerisation catalyst is prepared by supporting a phosphonic acid on a carrier consisting essentially of silica and' a metal oxide, calcining the supported catalyst at 700 to 1100‹C. for at least 2 hours, extracting the calcined product with water to remove soluble substances and finally drying at a temperature below 1100‹C. The silica may be present as diatomaceous earth, silica gel or pumice and the metal oxide may be Al 2 O 3 , TiO 2 , ZrO 2 , or MgO. The catalyst may be used in a fixed or fluidised bed. Reference has been directed by the Comptroller to Specification 1069044.
Patent GB-1195495-A (GB)
Title: Process for Extruding Foamed Thermoplastics
Inventor: EHRENFREUND HERBERT ALBERT
IPC: B29C44/34
Filed: 1968-10-10
Abstract: 1,195,495. Extruding foamed thermoplastics. HAVEG INDUSTRIES Inc. 10 Oct., 1968 [15 Nov., 1967], No. 48015/68. Heading B5A. [Also in Divisions B1 and C3] In a process of producing extruded foamed thermoplastics, a thermoplastic polymer admixed with a blowing agent is passed through a twin extruder wherein the screws intermesh and co-rotate. According to the invention, the power requirements for such an extruder are less than for a single or contra-rotating extruder of the same capacity and the working temperature to which the polymer is raised is reduced such that a cooling system is not necessarily required prior to extrusion. Many suitable polymers, nucleating and blowing agents are mentioned, the preferred polymers being polystyrene and polyethylene and polyvinylchloride polymers containing up to about 30% of other co-monomers. The use of PTFE is mentioned. The foaming agent may be incorporated in the starting material or injected into the extruder. In the latter case the cooling effect of the injected material may be sufficient in itself to reduce the temperature of the mixture to the desired extrusion temperature. The extruder shown comprises a compression zone 5, 5B being a mixing and sealing zone immediately upstream of injection zone 6, and zones 7, 8 and 9 respectively for conveying, mixing and metering. Zone 8 may be dispensed with and the intermittent reverse flights of mixing zone 5B may be replaced by flights of changing pitch and/or diameter. A jacket 17 containing electrical heaters is provided. A cooling jacket may be provided between injection zone 6 and the die 10. A pump 14 delivers liquid blowing agent from a storage vessel 15 to port 13. Products mentioned are sheets, rods and coverings for cables. Six examples are given in which are used, (i) polystyrene pellets containing citric acid and sodium bicarbonate, (ii) polyethylene mixed with calcium silicate and zinc stearate with injected petroleum ether, (iii) polystyrene mixed with citric acid and sodium bicarbonate with injected petroleum ether and (iv) the same mixture with injected pentane.
Patent GB-1460534-A (GB)
Title: Thiazole 'ardiovascular agents
IPC: A61K31/425
Filed: 1974-03-21
Abstract: 1460534 Thiazole derivatives SYNTEX (USA) Inc 21 March 1974 [22 March 1973 14 March 1974] 48250/75 Divided out of 1460532 Addition to 1410512 Heading C2C The invention comprises compounds of the formula wherein Z is one of the following groups R<SP>4</SP>OCONR<SP>3</SP>-, wherein one of R<SP>3</SP> and R<SP>4</SP> is C 7 -C 12  alkyl, C 3 -C 12  cycloalkyl, terminally substituted C 2 -C 12  alkyl wherein the substituent is OH, C 2 -C 12  acyloxy or C 1 -C 6  alkoxy, or one of the groups -(CH 2 ) n+1 NR<SP>8</SP>R<SP>9</SP> or wherein n is 1 to 4, R<SP>8</SP> and R<SP>9</SP> are H or C 1 -C 4  alkyl and R<SP>10</SP> is C 3 -C 8  cycloalkyl; and the other of R<SP>3</SP> and R<SP>4</SP> is H, C 1 -C 12  alkyl, C 3 -C 12  cycloalkyl, phenyl, phenyl(C 1 -C 6 )alkyl which may be substituted by one or two substituents selected from OH, halogen and (C 1 -C 6 )alkyl or alkoxy, terminally substituted C 2 -C 12  alkyl wherein the substituent is OH, C 2 -C 12  acyloxy or C 1 -C 6  alkoxy, or one of the groups -(CH 2 ) n+1 NR<SP>8</SP>R<SP>9</SP> or -(CH 2 ) n R<SP>10</SP> with the proviso that when Z is R<SP>4</SP>OCONR<SP>3</SP>- then R<SP>4</SP> cannot be H; R<SP>5</SP> and R<SP>6</SP> are H, C 1 -C 6  alkyl, aralkyl or together with the C atom to which they are attached form a C 5 -C 7  cycloalkyl radical; R<SP>7</SP> is H, C 1 -C 6  alkyl, aryl or aralkyl; and acid addition salts thereof. They may be obtained either by reacting a compound of the formula with an alkali metal hydride in an inert organic solvent followed by reaction with a compound of the formula wherein X is Cl or Br; or by reacting a compound of the formula with a ketone or aldehyde of the formula and Al isopropoxide. Therapeutic compositions comprise compounds of Formula III either alone or in combination with other pharmaceutically compatible medicaments together with conventional carriers. 5 - Hydroxymethyloxazolidines of the above formula B<SP>1</SP> may be obtained by reacting glycidol with NH 3  or R<SP>7</SP>NH 2  to give a hydroxyamine of the formula and reacting this hydroxy-amine with an aldehyde or ketone R<SP>5</SP>R<SP>6</SP>C = O in an inert solvent.