baber/WOPTO huggingface dataset:
Patent GB-1511658-A (GB)
Title: Fluid control apparatus
IPC: F16K31/42
Filed: 1975-12-16
Abstract: 1511658 Fluid regulation DEFENCE SECRETARY OF STATE FOR 16 Dec 1975 [17 Dec 1974] 54508/74 Heading G3H [Also in Division F2] A system for actuating a pressure-operated fluidcontrol device C, Fig. 1, comprises at least one fluid circuit incorporating at least two electroviscous valves EV 1 , EV 2 , electrical control apparatus for varying the electrical field applied to the fluid flowing through the valves to vary the fluid-pressure in the circuit, and means for communicating the fluid-pressure with the fluidcontrol device C for actuating the latter and thereby controlling the flow of primary fluid WF. The control device C incorporates a bellows-type regulator B which is subjected to the pressure at point X 1  via line CP and thereby regulates the flow of  the primary fluid WF from inlet IP to outlet OP leading to a load E. In an alternative embodiment, Fig. 4, four electroviscous valves EV 7  to EV 10  are arranged in the form of a Wheatstone Bridge and the two pressures at points Y 1 , Y 2  are subjected to respective bellows-type regulators B(Y 1 ), B(Y 2 ) to proportionately vary communication of high and low-pressure topping 20, 21 with a control duct 23 and thereby control the pressure at annular recess 24. Low-pressure at the recess causes much of the primary flow 19 to be directed through swirl vanes 18 in a vortex chamber 10. Highpressure at the recess causes much of the primary flow to be directed straight through and around body 16 to increase the flow-rate. In another embodiment, Fig. 3 (not shown), pressures at opposite points (X 1 , X 2 ) of a Wheatstone Bridge arrangement, are applied to the opposite ends of a spool valve (S) via bellows chambers (CH 1 , CH 2 ), the spool valve controlling primary fluid-flow to and from a piece of hydraulic equipment (HE). The electroviscous valves each comprise a hollow cylinder (1), Fig. 2 (not shown), which surrounds and supports a concentric solid cylinder (2) to form an annular flow path (3). A variable voltage (VVS) is connected across the cylinders to produce the electrical control field.
Patent GB-1122820-A (GB)
Title: Benzenesulphonyl-ureas and process for preparing them
IPC: C07C311/59
Filed: 1965-12-23
Abstract: Novel benzenesulphonyl ureas of the formula <FORM:1122820/C2/1> and their physiologically tolerable salts, wherein R is H, lower alkyl or lower phenylalkyl (the word " lower " indicating that the alkyl group has 1-4 C atoms); R1 represents (a) C2- 8 alkyl or alkenyl, (b) lower phenylalkyl, (e) lower cyclohexylalkyl, (d) endoalkylene-cyclohexyl, endoalkylene-cyclohexenyl, endoalkylene - cyclohexylmethyl or endoalkylene - cyclohexenylmethyl, containing 1 or 2 carbon atoms in the endoalkylene part, (e) lower alkyl-cyclohexyl or lower alkoxycyclohexy, (f) C5- 8 cycloalkyl or (g) cyclohexenyl or cyclohexenylmethyl; X is a C1- 3 hydrocarbon radical substituted by one or two Cl or Br atoms or a CN group, each carbon atom bearing no more than one substituent and Y is a C1- 4 alkyl chain, are made by (a) reacting an amine R1NH2 or a salt thereof with a benzenesulphony - isocyanate benzenesulphonyl - carbamic ester, benzenesulphonyl thiocarbamic ester benzenesulphony -carbamic halide or benzenesulphony urea carrying the substituent X-CO-N(R)-Y-; (b) reacting a benzenesulphonamide carrying the substituent X-CO-N(R)-Y-with an R1 substituted isocyanate, carbamic ester or halide, thiocarbamic ester or urea; (c) reacting a benzenesulphony halide bearing the substituent X-CO-N(R)-Y-with an R1-substituted urea, isourea-ether, isothiourea-ether or parabanic acid and hydrolysing the isourea or isothiourea or parabanic acid derivative obtained; (d) replacing the sulphur atom in a corresponding benzenesulphonyl-thiourea by an oxygen atom; (e) oxidizing a corresponding benzenesulphenyl or benzenesulphinyl urea or (f) acylating a benzenesulphonyl urea of the formula RNH-Y-phenylene-SO2-NH-CO-NHR1 to introduce the group X-CO-. Pharmaceutical preparations for the oral treatment of diabetes comprise the above sulphonyl ureas or salts thereof in admixture or conjunction with a carrier suitably in the form of a tablet or powder.
Patent GB-1319305-A (GB)
Title: Extrusion process for non-cellular polyurethane
IPC: C08G18/65
Filed: 1970-11-17
Abstract: 1319305 Mixing apparatus UPJOHN CO 17 Nov 1970 [3 Dec 1969] 54635/70 Heading B1C [Also in Divisions B5 and C3] A thermoplastic non-cellular polyurethane is continuously extruded by continuously admixing within a first-zone in the liquid preheated state, a polymeric diol, optionally a difunctional extender, and a catalyst (the ratio of isocyanate to active hydrogen groups being from 0.9:1, to 1.2:1, and the molar proportion of polymeric diol to difunctional extender being from 0.1 to 10:1); continuously passing the reaction mixture through a second zone where the extender may be continuously added (if not added in the first zone), and where it is subjected to high shear mixing; and then continuously passing the reaction mixture through a shaping zone for extrusion as one or more strands (either directly fed to an injection moulding machine or chopped into pellets), the temperature of the mixture being controlled throughout the three zones so that the viscosity is substantially constant at 100,000 cps to 1,000,000 cps. The reaction components may simultaneously be delivered to the feed zone entry port, or the extender may be separately introduced downstream in the first or second zones. Each zone is defined either by separate screw extruders (when the loads thereon may be employed to control the viscosity), or by different locations along the shafts of a twin screw extruder, the temperature being controlled by a plurality of independent means e.g. oil baths therealong which, in the second zone, comprises cooling means. In the first three examples a twin screw mixer-extruder is employed, each shaft whereof comprises a worm section defining the first zone, elliptical kneading elements defining the second zone, and a worm section defining the third zone from which a plurality of strands discharges for collection and cooling under nitrogen on a moving belt, and feeding therefrom to a pelletizer. In Example (4) a mixer-extruder comprised five identical twin screw extruders in series, each shaft thereof comprising a screw section followed by a section comprising triangular paddles, the first extruder being provided with the entry port and the last discharging to the die. The elliptical or triangular kneading elements of the extruders may co-operate with internal barrel projections. The polyurethane may alternatively by pelletised by extrusion of a single strand into a cooling liquid and die face cutting.
Patent GB-1242876-A (GB)
Title: Drive unit comprising a two-stroke engine provided with a scavenging compressor
IPC: F16H37/00
Filed: 1968-11-19
Abstract: 1,242,876. Two-stroke engines; driving-gear. AUTOMOBILES CITROEN S. A. Nov.19, 1968 [Nov.22, 1967], No.54914/68. Heading F1B. [Also in Division F2] A two-stroke engine a is connected to one element (planet carrier b) of a three-element epicyclic gear, a scavenging blower d is connected to another element (sun-wheel c), and the load (e.g. vehicle wheels) is connected to the third element (annulus wheel e) through a variable-speed power transmission T; and at least one variable-speed power transmission C is coupled between the blower shaft d and either the output shaft of the engine or, as shown, the input shaft f of the transmission T. Where two transmissions C are provided, one is coupled to the engine output shaft and the other to the shaft #. As shown, the transmission C is a torque converter but may instead be a variableratio belt drive or an electrical transmission. The epicyclic gear divides the output power of the engine between the vehicle wheels and the blower d. The torque converter C modifies this arrangement by automatically transferring power from the blower d to the shaft #, or vice-versa, the effect being to keep the blower speed substantially constant. Thus, if the blower is dimensioned for the average engine speed, power is transferred from the blower to the shaft f at high engine speeds and from the shaft f to the blower at lower engine speeds. If the blower is dimensioned for low engine speed or for high engine speed, the transference of power takes place exclusively in one direction, and the torque converter C may be designed solely for operation in that direction.
Patent GB-1091488-A (GB)
Title: A copying process
IPC: B41M5/32
Filed: 1965-12-29
Abstract: 1,091,488. Thermographic materials. FUJI SHASHIN FILM KABUSHIKI KAISHA. Dec.29, 1965 [Dec. 29, 1964], No.55141/65. Heading G2C. A copying material comprises a support having a heat-sensitive layer comprising a colloidal binder, a material having water of crystallization which is released on heating, and at least one metallic soap or wax. Specified soaps are stearate, palmitate and rosin salts of zinc, cadmium and iron, and a specified wax is carnauba wax. The soap or wax may be added as a powder in a 5-40% by wt. dispersion in the coating soln. A specified hydrous material is sodium acetate trihydrate, a specified binder is gelatine and a support is triacetyl acetate film. The material may be contacted with the original, transmittance or reflex exposed to I. R., and developed with a powdered toner which may then be fixed in an atmosphere of trichloroethylene.
Patent GB-1202499-A (GB)
Title: Substituted phenylacetonitriles
Inventor: DENGEL FERDINAND
IPC: C07C255/32
Filed: 1967-12-08
Abstract: 1,202,499. Substituted phenylacetonitriles. KNOLL A.G. CHEMISCHE FABRIKEN. 8 Dec., 1967, No. 55172/69. Heading C2C. Novel compounds of Formula I wherein A, B, C, A<SP>1</SP>, B<SP>1</SP> and C<SP>1</SP> each are H, halogen, C 1-8  alkyl, C 1-8  alkoxy or two adjacent groups may together form a methylenedioxy group and at least one of A, B and C is other than H, Y and Z are straight or branched chain alkylene groups with 1 to 8 carbon atoms in the main chain, R is C 1-8  alkyl and R 1  is a group of formula where A<SP>11</SP>, B<SP>11</SP> and C<SP>11</SP> each are H, halogen, C 1-8  alkyl, C 1-8  alkoxy or two adjacent groups may together form a methylenedioxy group and at least one of A<SP>11</SP>, B<SP>11</SP> or C<SP>11</SP> is other than H and n is 0 or 1, are prepared by one of the following methods: (a) a compound of formula is reacted with a compound of Formula III where X is a reactive acid radical; (b) a compound of formula is reacted with a compound of formula R 1 -X; (c) a compound of formula is reacted with a compound of Formula III above and then with a compound of formula R 1 -X; (d) a compound of formula is reacted with a compound of formula and a compound of Formula I above wherein R is H is alkylated. 4,4<SP>1</SP> - Dimethoxydiphenylacetonitrile is prepared by reaction of anisole and 4-methoxymandelic acid nitrile with concentrated sulphuric acid. α - (4 - chlorobenzyl)α - {[N- # 1 ,#-diisopropol  # - 3, 4 - dimethoxyhenylethyl] - # aminopropyl} - 3,4 - dimethoxyphenyl acetonitrile and the amino sulphate oxalate and hydrochloride salts are prepared by reaction of #,#-diisopropyl- # - 3,4 - dimethoxyphenylethylamine and the nitrile aldehyde solution obtained by saponification of 4,5 - di - (4 - chlorophenyl) - 4 - cyanopentanal diethyl@cet 1 followed by treatment with methanol and aluminium amalgam. 4,5 - Di - (4 - chlorophenyl - 4 - cyanopentanal diethyl acetal is prepared by condensation of α - (4 - chlorobenzyl) - 4 - chlorobenzyl cyanide with chloropropanol diethyl acetal and sodium amide.  The novel compounds have coronary activity and are used as medicaments.
Patent GB-1310376-A (GB)
Title: Apparatus for calculating the reciprocal of a number
IPC: G06F7/535
Filed: 1970-11-26
Abstract: 1310376 Digital calculators INTERNATIONAL BUSINESS MACHINES CORP 26 Nov 1970 [18 Dec 1969] 56354/70 Heading G4A In an arrangement for calculating the reciprocal of a binary number the number is multiplied by a normalizing factor chosen to form a number justified to the right of the decimal point. The justified number is operated upon in accordance with multiplication and addition instructions in a look-up table to present the number in a standard form in which a certain number of the leading digits of the justified number are all 1. Operations including multiplication are now performed on the standard number to derive a control number which relates the standard number to its reciprocal, and this reciprocal is derived. A further sequence of operations is performed on the reciprocal of the standard number to take account of the operations effected during the standardizing of the number, this sequence resulting in the reciprocal of the justified number. The required reciprocal is derived by dividing the reciprocal of the justified number by the normalizing factor. A quotient may be derived by forming the reciprocal of the denominator, as indicated above, and by multiplying the reciprocal by the numerator.
Patent GB-1379803-A (GB)
Title: Audio-visual educational apparatus
IPC: G09B5/06
Filed: 1972-12-07
Abstract: 1379803 Educational appliances R LUCIEN and M LE HENAFF 7 Dec 1972 [8 Dec 1971 2 Aug 1972] 56574/72 Heading G5G A teaching machine comprises:-a screen 8 on which is positioned a strip 9 of translucent paper; manually operable cranks 12<SP>1</SP>, 12<SP>11</SP> for feeding the paper in forward and reverse directions over the screen; a projector 1 housed within the machine; a tape recorder 3; control buttons 11, e.g. four buttons A, B, C and D; a memory unit (5), Fig. 2 (not shown); and synchronizing means (4) connected between the projector 1 and the tape recorder 3. In use, the pupil first presses button A to clear the memory unit and to set the projector 3 in operation whereby different slides are projected on to the screen at regular intervals. Particular ones of these slides are selected by the pupil according to a criterion set by the teacher, and details of this selection are stored in the memory unit (5) by the actuation of button B. When selection is complete, button C is pressed to stop the projector. The pupil then successively calls up the preselected slides by operating button D, and traces the projected image on the paper 9, pressing button C to stop the projector when all the selected slides have been studied. Subsequently, button D is pressed to cause the first image again to appear on the screen; the tape recorder 3 is then set into operation, the teacher records a commentary on a first track, and the pupil repeats it on a second track, these operations being continued until the last image is reached. Finally, the pupil works only with the recorder, listening to the teacher's commentary and his own repetitions. In a modification (Fig. 3, not shown), a further control button (E) is provided so that the tape recorder and projector are operated in synchronism so that when first recalled from the memory, each selected image is accompanied by a pre-recorded commentary. Embodiments incorporating modified control circuitry are described with reference to Figs. 5 to 9 (not shown). The tape recorder may be associated with a continuous-loop recorder for the repetition of the last part of a commentary. The machines may be used separately by one teacher and one pupil, or a number of machines may be connected to a control desk.
Patent GB-1214158-A (GB)
Title: Method of coating a moving metal strip
Inventor: JACKSON ALBERT EDWARD
IPC: B22F7/04
Filed: 1967-12-14
Abstract: 1,214,158. Metal powder coating of metal strip. JOHN SUMMERS & SONS Ltd. Nov. 29, 1968 [Dec. 14, 1967], No.56871/67. Heading C7D. A method of coating a metal strip e.g. steel, with metal powder e.g. aluminium, comprises passing the strip through a series of stations which are in a straight line, the strip being uncoiled at 1, wetted on both sides at 7, 8, 9, metal powder is applied electrostatically at 12 and 14, drying is effected at 22, optionally further wetting at 23, 24 and drying at 25 prior to rolling at 26 and coiling at 31 for subsequent sintering. Sodium or potassium silicate solution is used for the first wetting and the second wetting may be effected with an aqueous solution of nickel hydroxide, aluminium hydroxide, sodium carboxy methyl cellulose or bentonite or solutions of gum aralic, gum tragacanth, albumin globulins, starch, amylose, pectin and salts of alginic acid, polyvinyl alcohol. Sintering is effected at 550‹ C for 1 hour or at 350‹ C for 15 hours.
Patent GB-1449127-A (GB)
Title: Consolidation of particulate materials
IPC: C22B19/02
Filed: 1972-12-11
Abstract: 1449127 Bonding particulate materials FOSECO INTERNATIONAL Ltd 19 Nov 1973 [11 Dec 1972 (2)] 57048/72 and 57049/72 Heading C1A [Also in Division E1] A particulate material containing a source of metal ions is bonded by treating with an aqueous formic acid solution to produce an acid solution containing metal ions, and allowing or causing (by adding a basic substance) the pH to increase so as to form a metal hydroxide to bond the particles together. The process may be used in the bricketting or pelletizing of materials containing iron or zinc oxide, for example fume from basic oxygen steelmaking, or blast furnace dust. It may also be used for the consolidation of soils, foundry sands or stockpiles of particulate materials, and in the manufacture of iron-oxidecontaining heat storage blocks.
Patent GB-1205468-A (GB)
Title: Metal bonded alumina-carbide compositions
IPC: C22C32/00
Filed: 1968-12-02
Abstract: 1,205,468. Cermets. E.I. DU PONT DE NEMOURS & CO. 2 Dec., 1968 [4 Dec., 1967; 14 June, 1968], No. 57152/68. Heading C1J. [Also in Division C7] A powder mixture, which may be consolidated (e.g. by hot or cold pressing) to form a body having two interpenetrating three-dimensional networks, one of Al 2 O 3  and the other of carbide and metal, comprises apart from impurities, 20-90% by volume Al 2 O 3 , 5-79% by volume of one or more of zirconium carbide, hafnium carbide and titanium carbide and 1-20% by volume of a metal comprising 5-90% by weight of one or more of Fe, Co and Ni with 10-95% by weight W and/or Mo, the volume per cent of the carbide being not less than that of the metal and the average grain size of the powders being less than 10 Á.
Patent GB-1332168-A (GB)
Title: Gyrocompasses
IPC: G01C19/36
Filed: 1970-12-04
Abstract: 1332168 Compass systems SPERRY RAND CORP 4 Dec 1970 [18 Dec 1969] 57604/70 Heading G1N [Also in Division G4] An aircraft compass system comprises a fluxvalve compass 10, a heading gyroscope 11, a differential resolver 12 mounted on the gyroscope and having its rotor positioned by the gyroscope, summing device 15 and integrator 17, connected as shown in Fig. 1 so that the output signal # o  at 14 includes only long term components of magnectic heading # m  and only short term components of inertial heading # p . In Fig. 6, the output of flux-valve 10, which is of the type described in Specification 1291597 [Division G1], is corrected for deviations due to the magnetic field of the aircraft and tilt caused by aircraft acceleration and Coriolis forces as described in Specification 850692, and for errors due to field strength variations to produce two, corrected, D.C. voltages proportional to sin # m  and cos # m . A solid state analogue computer 80 derives sin(# o -# m ) which is then digitized and integrated in a solid state circuit 81 including a slaving clock 52 producing a bit rate corresponding to a slow slaving rate of 2¢ degrees per minute. The output # s  of 87 is converted at 85 into analogue sin and cos signals which are fed to the stator of the resolver 12. The resolver output is fed back to the computer 80 and also to a Scott T transformer 71 to provide a three wire format output signal.
Patent GB-1435107-A (GB)
Title: Reinforcing a semiconductor element
IPC: H01L23/48
Filed: 1972-12-16
Abstract: 1435107 Semi-conductor devices WESTING- HOUSE BRAKE & SIGNAL CO Ltd 7 Dec 1973 [26 Dec 1972] 58225/72 Heading H1K A semi-conductor element comprises a wafer of semi-conductive material, and a reinforcing member 1 peripherally attached thereto and including sections attached to the wafer and joined by portions 3 spaced from the wafer and provided for taking up thermally induced deformations. The reinforcing member 1 is attached by glass or metal bonding to a silicon disc wafer having one or more PN junctions formed in it. The portions 3 are defined by slots 2. The member 1 is made of molybdenum having a coefficient of thermal expansion different to that of the wafer. The semi-conductor element is edge-profiled, etched, coated with a passivating glass and metallized. It is then encapsulated in a compression bonded encapsulation.
Patent GB-583823-A (GB)
Abstract: 583,823. Drilling &c. machines. CONSOLIDATED PNEUMATIC TOOL CO., Ltd.. and MACDONALD, N. July 14, 1944, No. 13500. [Class 83 (iii)] A portable rotary spindle machine having a self-contained electric or pneumatic motor, for drilling, screwing- up, tapping, &c. has a twospeed epicyclic drive for the spindle. The motor shaft 1 has an integral or attached pinion 11 engaging planet pinions 2 carried by spindles 3 on a spider 4 and meshing with an internal gear 5 secured to the gear housing 17. The spider 4 is rotatable in the housing and has a slotted flange 10 engaging pins 11 on a spider formed on the inner end of the tool spindle 8 to drive the latter at its higher speed. For the lower speed, the spindle 8 is moved axially to withdraw the pins 11 from. the flange 10 and bring planet pinions 7 on the pins into mesh with a sun pinion 6 on an extension of the spider 4 and with an internal gear 9 on the housing 17. The spindle 8 is moved axially by an.outer sleeve 15 and is locked in either of its positions by a bolt 18 in the sleeve engaging one of the semicircular grooves 19 in the housing 17. The grooves 19 are united at two diametrically opposed portions by flats 20 so that, after slackening the bolt 18, the sleeve 15 may be rotated.to bring the bolt opposite one of the flats to permit axial sliding of the sleeve and spindle 8. The spider 4 has an extension 13 rotating in a bearing 14 in the spindle 8 and the spindle rotates in bearings 12, 21 in the housing 17 and sleeve 15 respectively, the latter being a thrust bearing as shown or a combined thrust and journal bearing.
Patent GB-1452116-A (GB)
Title: Method of depositing a pattern of metal areas
IPC: G03F1/54
Filed: 1973-12-18
Abstract: 1452116 Photomasks RCA CORPORATION 18 Dec 1973 [29 Dec 1972] 58555/73 Heading G2X [Also in Division C7]  A photomask is formed by depositing a Ni or Ni alloy layer by vapour or electroless deposition or by sputtering on a glass or plastics substrate, applying a pattern of a photo-resist, electrolessly depositing a Ni, Co or Cu layer and then heating in air to form Ni oxides and make the first layer at least 70% transparent to visible or ultraviolet light.
Patent GB-1300986-A (GB)
Title: A unitary cast aerofoil
IPC: B64C3/00
Filed: 1970-12-11
Abstract: 1300986 Cast aerofoil MERLIN GERIN 11 Dec 1970 [22 Dec 1969] 58876/70 Heading B7W A hollow light or ultra-light alloy cast aerofoil 10 comprises upper and lower surfaces 12, 14, and integral therewith one or more partition walls 16, 18, 20 spanning the surfaces and extending longitudinally of the aerofoil. The aerofoil is preferably a wing flap having surfaces 2-2À5 mm. in thickness and is made by a known precision casting process. Walls 16, 18, 20 are arranged to form ribs of triangular cross-section of great transverse and longitudinal rigidity. A bearing member 22 may be integrally cast on at least one end portion of the flap. When more than one wall is used, the arrangement within the flap is such as to reduce the shrinkage stresses occurring during cooling of the casting. The casting may be used without further machining and is particularly applicable to flaps fitted in supersonic aircraft between the aerobrake panels and the trailing edges of the wing.