baber/WOPTO huggingface dataset:
Patent GB-1036808-A (GB)
Title: Improvements relating to printed circuit assemblies
IPC: H01R12/55
Filed: 1964-08-04
Abstract: A printed circuit micro-module functioning as an AND/OR inverter circuit (Fig. 1, not shown) is made by a process comprising the following steps:-(a) A conductive pattern 41, Fig. 10 (not shown), is printed by silk-screening metallizing ink comprising e.g. Au, Ag, Pt, on to a substrate 42 (e.g. of alumina) having apertures 44 around its periphery;  then the substrate is fired at c. 750-800 DEG  C. for c. 30 minutes to solidify the conductors. (b) Resistor elements 28, 29, 30 are deposited by silk-screening a paste, e.g. a palladium oxide-silver composition, in the desired positions on the substrate 42, dried, then fired at c. 800 DEG  C. for c. 50 minutes. (c) Plug pins 62, Fig. 5 (not shown), e.g. of Cu, are inserted in apertures 44 in the substrate and expanded at 63, 64 to secure them in position. (d) The substrate is dip-soldered to effect good electrical connections between pins 62 and conductors 41, and to tin the latter. (e) Resistor values are corrected by cutting notches 71 in resistors 28, 29, 30 by abrasion, burning or grinding, resistance values being measured in an electrical bridge circuit. (f) Transistors and diodes 20, 23, 24, 27 are fastened in position by the process described in Specification 1,013,333. (g) The micro-module is encapsulated by dipping in a plastic material, e.g. silicon varnish. Modifications.-Capacitors 82, 83, 84, Fig. 11 (not shown), are formed by extending Au-Pt conductors 41 to include first capacitor plates 81, adding dielectric layers 85, and finally silk-screening and firing Au-Pt counter electrodes 86. The dielectric may comprise ceramic material such as titanium dioxide and barium titanate with modifiers, e.g. bismuth stannate and calcium stannate, with borosilicate glass as a binder and an organic vehicle such as pine oil to provide the viscosity necessary for silk-screening; the layers are fired at c. 900 DEG  C. for c. 2 hours.  Inductors such as at 101, Fig. 12 (not shown), may be formed on the reverse side of substrate 42.  Half of windings 103 are printed and fired, then an insulating core 102 of glass, which may include a ferrite, is added, followed by the printing of the other half of windings 103. The inductor is connected to the conductive pins by dip-soldering.
Patent GB-892837-A (GB)
Title: Improvements relating to pulleys
IPC: F16H55/02
Filed: 1959-09-15
Abstract: 892,837. Belt gearing. VISCO S.A. Sept. 15, 1959 [Sept. 16, 1958], No. 31459/59. Class 80 (1). To ensure that a positive driving belt, provided at periodic intervals with thickened portions 4 which engage corresponding recesses 7 in the groove of the pulley 1, is not subjected to bending stresses where it emerges from the thickened portions, the bottom of the pulley groove on either side 6 of the pulley recesses 7 is formed perpendicularly to the radii through the centres of the recesses for a distance equal to the belt diameter.
Patent GB-397104-A (GB)
Title: Manufacture of a new dyestuff
Filed: 1931-11-13
Abstract: An azo dye is made in substance, on a substratum or on the fibre by coupling diazotised 4-chloro-2-amino-diphenylether with the p-anisidide of 2 : 3-oxynaphthoic acid.  Examples are given. Specification 310,758, [Class 15 (ii), Dyeing, Processes &c. for], is referred to.
Patent GB-1472428-A (GB)
Title: Treating sheet material
IPC: F26B13/00
Filed: 1974-07-16
Abstract: 1472428 Drying sheet material W KRUCKELS 16 July 1974 [18 July 1973] 31491/74 Heading F4G A method of treating sheet material comprising a multiplicity of longitudinal elements consists of treating the material in a treatment vat, dividing the elements of the sheet into separate sections, predrying each section equally in a respective drying station having at least one drying cylinder, reconstituting the actions into the sheet and finish drying the material. In the apparatus shown the warp is passed through a treatment vat 3 then divided and passed round pairs of drying cylinders 6a, 6b before being recombined and passed round drying cylinders 6c in a drying station 5. The warp may be further subdivided by rods (9), Fig. 2 (not shown), after the predrying. The tension of the warp may be controlled by rollers 7 and 8.
Patent GB-1439113-A (GB)
Title: Filler suitable for use in bituminous compositions and a method  of producing it
IPC: C08K3/00
Filed: 1974-07-16
Abstract: 1439113 Filler for bituminous compositions VEREINIGTE ALUMINIUM-WERKE AG 16 July 1974 31520/74 Heading C1A [Also in Division C3] A filler suitable for use in bituminous compositions is made by adding lime in amounts of 3-10% by weight calculated as CaO to the moist filtered residue obtained after the digestion of bauxite and spray drying the mixture to provide a fine grained, free flowing material. The lime may be added in the form of quicklime, flake lime or milk of lime during or after washing of the residue and/or before or during filtration of the residue.
Patent GB-991938-A (GB)
Title: Improvements in or relating to interference suppressor for internal combustion engines
IPC: H04B15/02
Filed: 1961-09-01
Abstract: 991,938. Interference suppression in ignition systems. L. TEXSIER. Sept. 1, l961 [Apr 25, 1961], No. 31538/61. Heading F1B. [Also in Divisions H2 and H3] An interference suppressor device for internal combustion engines, for direct insertion between the spark-plug, which has a determined residual capacity C bg , and the plug lead, which has a determined capacity C 4 , is constituted by a low pass T-filter network, said network comprising on the one hand, in series, two assemblies R 1  - L 1  and R 2  - L 2  respectively formed by a resistance R 1  or R 2  in series with an inductance L 1  or L 2  and on the other hand, in shunt, a capacity of value C 3  near to the value of the residual capacity of the plug C bg , the values of the different aforementioned parameters being interconnected by the following relationships: the values of the resistance being expressed in ohms, those of the capacities in Farads and those of the inductances in henrys. The coils may be mounted in the body of a connector 4 of plastic material the outside of which is either metalled or inserted in a metal envelope and this forms the second electrode of the capacity C 3 . In another embodiment the suppressor device is mounted directly in the body of the sparking plug. In the embodiment shown the members R 1 -L 1  and R 2 -L 2  are formed by winding a resistance wire on to a core 1 of insulating material.
Patent GB-931498-A (GB)
Title: Improvements in or relating to hose couplings
Inventor: PERRY DENNIS ALFRED
IPC: F16L37/252
Filed: 1961-09-02
Abstract: 931,498. Hose couplings. CONFLOW Ltd. April 12, 1962 [Sept. 2, 1961], No. 31620/61. Class 99(1). A hose coupling comprises two tubular members 1, 2, Fig. 1, with the member 1 fitting into an enlarged bore 6 of the member 2 which has a sleeve 9 provided with an inwardly directed flange 10 forming a guide for the member 1, radial lugs 21 on the member 1 being adapted to pass through slots 18, Fig. 6, in the flange 10 and on rotation of the member 1 to engage notches 19 formed on the inner face of the flange 10. A flanged ring 13 and spring 15 retain the lugs 21 in the notches 19 and an 0-ring 24 located in a circumferential groove 23 of the bore 6 effects sealing between the members 1, 2.
Patent GB-939108-A (GB)
Title: Improvements relating to supports for shelves and the like
Inventor: STEWART ERIC CHARLES
IPC: A47B57/42
Filed: 1960-09-14
Abstract: 939,108. Shelving brackets. HARRIS & SHELDON (DISPLAY) Ltd. Sept. 14, 1961 [Sept. 14, 1960], No. 31622/60. Class 52 (5). A bracket 8 has two or more flat hooks 14 engaging in slots 10 in an upright 7 which is provided with rearwardly and forwardly projecting flanges 12, 11, the distance between the forward flanges 11 being equal to the thickness of the bracket 8. In assembly the bracket must initially be tilted to engage the uppermost double hook 14, 16 in its slot. The upright may be a single metal extrusion, rolled from a single sheet or formed from angle pieces riveted or spot welded to a flat metal slotted strip.
Patent GB-195039-A (GB)
Title: Improvements in or relating to automatic regulating devices for use in heating installations for liquids or gases
IPC: F24H9/20
Filed: 1922-11-20
Abstract: 195,039. Sandstr÷m, G. E. March 15, 1922, [Convention date]. Void [Published under Sect. 91 of the Act]. Fluid-actuated ball and float valves.-An apparatus for regulating the supply of steam, electricity or other heating-medium for heating a liquid contained in a receptacle a, Fig. 1, comprises a vertically-movable bell-shaped vessel c which, when the liquid boils, is lifted by the accumulation of vapour therein and operates the valve e of the heating-pipe b or an electric switch or other member for reducing the supply of heat. Any air initially collecting under the bell may be discharged through the hollow stem d by an air cock f. In a modification, Fig. 2, the vessel c is closed at the bottom to form a float and communicates by the stem d and flexible tube g with a vessel h at a higher level. When the liquid in the float c boils, the pressure of the vapour expels some of the liquid into the vessel h and the float rises to operate the valve or switch e. The vessel h is provided with a valve i for connection to a pressure or suction pump whereby the pressure therein can be adjusted and the liquid in the float caused to, boil at the temperature at which it is desired to maintain the contents of the receptacle a.
Patent GB-845746-A (GB)
Title: Purification of sand containing colour-imparting impurities
IPC: C03C1/02
Filed: 1955-11-07
Abstract: Ferruginous material is removed from sand by treating washed sand with an aqueous solution of a non-oxidising acid having a dissociation constant k of at least 3 x 10-2 under superatmospheric pressure at between 100 DEG C. and the critical temperature, the solution having at least 0.5N concentration and being present in an amount at least sufficient to wet the mass of sand treated, and washing the treated sand with water. 20-50% wt. of 1-5N acid may be used and the weight of acid does not usually exceed 2.5% wt. of the sand although up to 10% is referred to. Acids may be hydrochloric, sulphuric, phosphoric, or oxalic.  The treatment may be at not above 200 DEG C., with pressures less than 20 atmospheres, obtained, say, by injecting steam into an autoclave containing the mixture of sand and acid.  Exemplified conditions are 150 lbs./sq. in. at 180 DEG C. for 8-10 hours, but a wide range of conditions are referred to with pressures preferably at least 50 lbs./sq. in.  The sand may have a specific surface 2000-5000 sq. cms./grm.  It is stated that the sand and acid mixture may be continuously fed into a jacketed tubular reactor and removed through a release valve.  The washed treated sand may be subjected to froth flotation at, e.g. pH 1.5-2.3, in the presence of an anionic collecting agent.  Specification 651,702 is referred to.
Patent GB-520866-A (GB)
Title: Improvements in or relating to gas-fired water heaters
IPC: F24H9/18
Filed: 1938-11-02
Abstract: 520,866. Mounting burners. EWART, J. H., and EWART & SON, Ltd. Nov. 2, 1938, No. 31754. [Class 75 (i)] [Also in Group XIII] The body 9 of a domestic gas-fired water heater is seated on a ring 2 forming part of a wall bracket, and the base 4 of the heater is connected to and depends from the ring and forms with the gas burner 5 a separate entity removable from the ring. The ring is attached to the wall by a flat portion 1, and screws 6 pass through the ring into an annular groove 7 in the base 4 to allow annular adjustment. The burner 5 is supported on the base 4 by screws 15 and has a tap fitting 11 removably connected on the burner side to a gas supply pipe 12.
Patent GB-1387449-A (GB)
Title: Automatic control devices of ventilation shutters of motor vehicles
IPC: B60H1/00
Filed: 1972-07-06
Abstract: 1387449 Ventilating vehicles REGIE NATIONALE DES USINES RENAULT and AUTOMOBILES PEUGEOT 6 July 1972 [9 Aug 1971] 31818/72 Heading F4V The ventilation system of a motor vehicle has a shutter 1 and a fan 6 driven by an electric motor 7 in the air intake, the fan speed being controlled by a rheostat 14 which is movable under the control of a bellows 16 connected to a Venturi choke fed by the airflow created by the vehicle motion, movement of the rheostat, as the vehicle speed increases, serving first to slow the fan and then to close the shutter. The position of the rheostat on the rod 17 is adjustable by a control knob 21 which is turned to rotate screw-threaded rod 20 in threaded socket 18 on the rheostat. The end of the rod is rotatably secured to an arm rigid with the rod 17. The bellows has a fixed plate 25 and a movable plate 15 secured to rod 17. As the air-speed of the vehicle increases the choke 30 develops a partial vacuum at the constriction and pipes 26, 27, 28 apply this to the bellows moving plate 15 to the left, increasing the resistance in the fan circuit. When the maximum resistance is in circuit the rheostat engages the right-angled end 12 of a rod 11 connected to the shutter 1 and begins to close it by turning it anti-clockwise. The sliding contact 13 for the rheostat is carried on rod 11. When the rheostat returns to its normal position the shutter returns to the open position under gravity.
Patent GB-1320408-A (GB)
Title: Carboxylic acid amides and process for the production thereof
IPC: C07C/
Filed: 1970-07-01
Abstract: 1320408 Carboxylic acid amides AGRIPAT SA 1 July 1970 [2 July 1969] 31853/70 Heading C2C The invention comprises N-formyl-α-nitroalkane carboxylic amides of the formula in which R 1  represents a C 2 -C 12  carbon atom, R 2  is hydrogen or a C 1 -C 4  alkyl group and R 3  represents a C 1 -C 4  alkyl group. They may be prepared by reacting an alkane carboxylic acid amide of formula with a formamide of formula  in which R<SP>1</SP> is a C 1 -C 5  alkyl radical, R<SP>11</SP> is a C 1 -C 5  alkyl radical or a phenyl, benzyl or cycloalkyl radical or R<SP>1</SP> and R<SP>11</SP> together with the nitrogen to which they are attached complete a heterocyclic ring which may contain further hetero atoms, and a halide of an inorganic oxyacid, nitrating the complex intermediate product obtained with a mixture of concentrated sulphuric and nitric acids at a temperature between - 10 and + 30 C. and subsequently hydrolysing the nitrated product at a temperature below + 30 C.
Patent GB-357817-A (GB)
Title: Manufacture of photographic sensitive material
IPC: G03C1/805
Filed: 1930-10-23
Abstract: 357,817. Photo - - sensitive material. I. G. FARBENINDUSTRIE AKT.-GES., Frankfort-on-Main, Germany. Oct. 23, 1930, No. 31891. Convention date, Oct. 23, 1929. [Class 98 (ii).] Films, stripping; films with multiple sensitive layers; colour photography.-Light-sensitive material is applied to both sides of a support composed of two or more adherent but separate layers. The material may be used in colour photography when it is required to expose together two superimposed sensitive layers and thereafter separate them, each with its own support, for development &c. The layers of the support may consist of cellulose derivatives, artificial resins, or rubber. For example, the support may comprise a layer of nitrocellulose and one of cellulose acetate, or two layers of nitrocellulose with a layer of cellulose acetate or of rubber between them. Separation of the support between any two layers is ensured by allowing one of the layers to dry thoroughly before coating the other during the film-casting operation, and choosing for the layer to be cast solvents which will not affect the layer already cast. Separation is effected by repeatedly bending the support sharply at one corner. Any layer of the support may contain a pigment, dyestuff, &c., e.g. to render it serviceable as a colour filter ; and if such colour filter is not desirable for the subsequent printing operation, the filter layer may constitute the middle layer of three layers all separable from one another. The Specification as open to inspection under Sect. 91 (3) (a) comprises also material in which a light-sensitive layer is provided on only one side of the support. This subject-matter does not appear in the Specification as accepted.
Patent GB-212521-A (GB)
Title: Improvements in automatic clutches
IPC: F16D43/22
Filed: 1923-12-20
Abstract: 212,521. Renault, L. March 10, 1923, [Convention date]. Clutches, friction. - In automatic friction clutches, particularly for preventing stalling of internal-combustion engines used in road or rail vehicles, and of the kind in which the engaging- force is dependent on the speed, and therefore the torque:, of the motor and is opposed by a force dependent on the load, the clutch is controlled by a differential device oppositely acted on by a centrifugally-derived force and the loadresponsive force, which is conveyed to the device by toothed gearing. A driving shaft 1, Fig. 1, carries a disc 3 in vhich are mounted the pivots 4, 4<1> of the expanding clutch shoes 5, 5<1> and the pivots 6, 6<1> of spring-controlled centrifugal masses 7. The shoes coact with a drum 11 rotatable on the driven shaft 2, and their free ends are connected by actuating-links 14, 14<1> to the casing 13 of a differential gear. The pinion 16 of the gear is Keved to a wheel 15 engaged by toothed sectors 8. 8<1> carried by the spindles 6, 6<1>, and the pinion 17 has in its boss a helical slot I7<1> engaged by a. pin 19<1> mounted in a spring-pressed' thrust rod 20 revoluble with the shaft 1. This rod contacts with a similar rod 18 revoluble with the shaft 2 and carrying a pin 19 coacting with a helical slot 11<1> in the boss of the drum 11, which is connected to a disc 10 on the shaft 2 by tension springs 12, 12<1>. Outward movement of the masses 7 turns the casing 13 in such direction as to expand the shoes 5, 5', while the load, by stretching the springs 12, 12<1>, causes relative rotation of the parts .10, 11, which is conveyed through the helical slots 11<1>, 17<1> &c. to the pinion 17, proportionately rotating it on the shaft 1 in a direction to release the clutch. The tensions of the springs are so arranged that the second action predominates when the resistance exceeds the motor torque at the particular speed. In the modification shown in Fig. 6, a plate clutch, comprising elements 21, 22 splined respectively to the hub of the driving-disc 3 and to the drum 11, has engaging-springs 29, 29<1> bearing on spur wheels 27, 27<1>, which act as presser members, and on washers 28, 28'. These washers are supported through shouldered rods 6, 6<1> by fixed bosses 23, 23<1>, against which bear also the bosses 24, 24<1> of the centrifugal arms 7. Slidable, non-revoluble sleeves 25, 25<1> have on their ends helicoidal teeth coacting with like teeth on the bosses 24, 24<1> and wheels 27, 27<1>, which mesh with a pinion 30 controlled in the same manner as the pinion 17. Relative displacement of the parts 10, 11 under load rotates the wheels 27, 27<1> so that they move to the right and relieve the spring pressure, while the centrifugal action of the arms 7 allows the sleeves 25 25' to move to the left and restore the spring pressure on the plates 21, 22.
Patent GB-543420-A (GB)
Title: An improved manufacture of olefin polymers
IPC: C08F10/00
Filed: 1939-12-11
Abstract: 543,420. Polymerization of olefines. STANDARD OIL DEVELOPMENT CO. Dec. 11, 1939, No. 31997. Convention date, Jan. 7. Drawings to Specification. [Class 2 (iii)] In the polymerization of iso-olefines by treatment with a metallic halide Friedel-Crafts' catalyst at a temperature below -10‹ F., the stability and colour of the product is improved by contacting it with an alkaline substance before allowing the temperature to rise above -10‹ F. Thus, isobutylene is polymerized in butane solution with boron fluoride at a temperature below -20‹ F. and lime is then added before the temperature is permitted to rise above the said temperature; the mixture is then heated to a temperature of 150-200‹ F., filtered, and passed with live steam into a flashing zone containing a petroleum lubricating oil solvent in order to separate the unvapourized high molecular weight polymer from more volatile materials. Other catalysts mentioned are aluminium chloride, zinc chloride and titanium tetrachloride. The lime is preferably added as a slurry with water, but the use of a slurry in a petroleum lubricating oil or liquid butane is also described. Other alkaline agents mentioned are sodium and potassium oxides, hydroxides and carbonates ; ammonia, ammonium hydroxide and carbonate ; and soda lime. Examples are given relating to continuous and batch processes for the production of isobutylene polymers. Specifications 498,526 and 501,670 are referied to. The Specification as open to inspection under Sect. 91 also includes a description of an apparatus suitable for carrying out the processes described in the examples. This subject-matter does not appear in the Specification as accepted.
Patent GB-801809-A (GB)
Title: An improved apparatus and method for flame-cutting metal joists and the like
IPC: B23K7/00
Filed: 1955-11-09
Abstract: 801,809. Cutting by fusion. MARRIAGE, F. H., and PENFOLD, R. L. Jan. 4, 1957 [Nov. 9, 1955], No. 32073/55. Class 83 (4). Apparatus for flame cutting a metal joist 1 or the like, transversely of its length whilst it is supported horizontally, comprises a frame 3, 4, 5 adapted to straddle the joist and to be locked thereto and carrying a web-cutting burner 38 mounted for horital movement and two flangecutting burners 43 mounted for vertical movement, the three burners being driven by a motor 11. The frame has a depending limb 4 rigid with its horizontal cross-member 3, and a depending limb 5 adjustable along the cross-member by a handle 51 to suit different joists. Rollers 6 ride on the joist flanges 7 whereby the apparatus may be moved along the joist and then clamped thereto by turning the handle 51, when in the cutting position. Motor 11 actuates a lead screw 26 driving a horizontally slidable member 35, carrying the burner 38 and through bevel gearing 13, 14, 18, 22, two vertical shafts 15, 23 with lead screws 49 driving the flangecutting burners 43. The height of burner 38 is adjustable by handle 37 and the burner may be swung upwards out of the cutting plane, Fig. 3 (not shown), and retained by a catch. In operation the flange-cutting burners are positioned at their bottom position and then ignited. The motor is started to move these burners upwardly to cut the flanges whilst the unignited burner 38 having been moved out of the cutting plane travels across.the web. When burners 43 reach their upper positions they run off their lead screws and are then extinguished. Burner 38 continues to move across the web at an increased speed and may be ignited and returned to the cutting plane so as to pre-heat the web during this movement. The motor is then reversed and moves the burner 38 at its cutting speed in the opposite direction across the web to complete the cutting of the joist; simultaneously the burners 43 move vertically downwards to their starting positions where they disengage from their lead screws but remain pressed against the ends 48 by springs 47.