baber/WOPTO huggingface dataset:
Patent GB-1167152-A (GB)
Title: Irradiation Systems.
IPC: G21K5/02
Filed: 1966-10-05
Abstract: 1,167,152. Irradiation equipment. SULZER BROS. Ltd. 5 Oct., 1966 [5 Oct., 1965], No. 44516/66. Heading H5R. An irradiation system comprises a shielded chamber to which containers containing material to be irradiated are fed one by one, the chamber containing a carrier device by which the containers are received and transported in a circular path around a radiation source occupying the centre of the chamber, said path having a stationary track means extending around it, arranged to impart a rotation to each container about an axis approximately parallel to that of the circular path. The plane of the circular path may be vertical or horizontal and Fig. 1 shows a vertical section of a preferred embodiment. Cylindrical containers 10 having projection 10a are fed by gravity from magazine 34 and are admitted one by one utilizing movable stop 39 into position 15 of rotating feed lock 14, the lock rotates and delivers container 10 to position 9 formed by corresponding indentations in the circumferences of two parallel circles 7 having a common rotation axis, the wheels 7 being connected by axially parallel rods 8. The projection 10a is designed to fit snugly in a recess 9. The wheel 7 rotates and cylinders 10 in frictional contact with surfaces 11 and 12 are rotated during their circular traverse anticlockwise in the first half and clockwise in the second since the centre line of drums 10 is arranged always to be above the surface 11 or 12 with which they are in contact. The cylinders are discharged by being received in recess 15 of lock 14 and delivered by rotation to delivery gradient 41. The movements of the lock and wheels are synchronized by gearing (Fig. 2, not shown) and the stop member 39 is operated by a cam and lever system attached to the axis 16 of lock 14. The cylindrical source 3 in sleeve 4 occupies the hollow driving spindle of the wheels 7 being supported by a plug inserted into the shielding 1 (Fig. 2, not shown), and is withdrawable along the axis of the cylinder. In a further embodiment (Fig. 3, not shown), surfaces 11 and 12 are replaced by a ring of gear teeth fixed to the circumference of the chamber, and the containers 10 are adapted so that section 10a is fitted with gear teeth which act with the fixed ring to rotate the cylinders during irradiation.
Patent GB-1042388-A (GB)
Title: A core shooting machine
IPC: B22C15/24
Filed: 1964-11-02
Abstract: 1,042,388. Moulding machines. GEORG FISCHER A.G. Nov. 2, 1964 [Nov. 1, 1963], No. 44665/64. Heading B3F. A core blowing machine comprises a pressure air chamber 6, and a sand chamber 1, with an interposed nozzle 2 with a restriction in its cross-section, a funnel-shaped blow-head 3 and means 4 for controlling the blowing. The control means 4 comprises a piston 11 with valve disc 13 controlled by a valve 16. Sand is fed to the container 1 through an opening 7a controlled by an air motor 15 operated flap 7.
Patent GB-448354-A (GB)
Abstract: 448,354. Screw fans. ATKINSON, J. S., and STEIN & ATKINSON, Ltd., 47, Victoria Street, Westminster. Feb. 7, 1935, No. 3952. [Class 110 (i)] [See also Group XII] A fan device for use in circulating furnace atmospheres comprises a main fan 10 acting on the furnace gases, and an auxiliary fan 15 outside the furnace chamber, which draws air through the motor windings and may direct it on to the back of the closure 11 for the fan aperture. The opening 12 in the casting 11 is made of larger diameter than the fan spindle to allow passage of cooling-air, and a heat-insulating coupling 14 is inserted between the fan spindle and the motor shaft. Curved deflector blades 17 are fitted on the closure 11.
Patent GB-1465567-A (GB)
Title: Deposition of materials onto semiconductors
IPC: H01L21/00
Filed: 1974-10-17
Abstract: 1465567 Semi-conductor devices NATIONAL RESEARCH DEVELOPMENT CORP 6 Oct 1975 [17 Oct 1974 5 Sept 1975] 45081/74 and 36731/75 Heading H1K [Also in Division C7] A semi-conductor substrate, e.g. GaAs or Si is coated by irradiating with an ion beam, areas to be coated to produce damage followed by immersion in a plating solution containing available ions of the coating material while exposing to radiation of a wavelength sufficiently short to generate free carriers in the semi-conductor whereby deposition is effected. In the case of a metal more electro-positive than hydrogen, deposition occurs on the irradiated areas; a material which forms negative ions deposits on the non-irradiated areas. The ion beam (e.g. of H 2 , N 2  or Ar) may be applied imagewise by scanning or through a mask. Conventional plating solutions are used, e.g. containing Ag, Au or Pt, and may contain a reducing or other agent which prevents oxide formation on the substrate. Visible radiation is used, but R.F., U-V. and I-R. are possible. Multiple metal coatings are made by applying different ion-bombardment dosages in different areas and immersing the substrate in successive plating baths in descending order of ion dosage required for deposition. Thus Ag may be initially applied (H 2  ion-dosage >5À10<SP>16</SP> ions/cm<SP>3</SP>) followed by Au or Pt (<5À10<SP>16</SP> ions/cm<SP>2</SP>) which deposits both on the semiconductor and the Ag. The coated substrate may be heat treated to effect electrical properties (e.g. 450-500 C. for 10 min.) and plating thereafter continued. Thus the multiple coatings above on GaAs yield ohmic Ag/Au or Pt areas and rectifying GaAs/Au or Pt areas, useful in diodes and FET's. To prevent erosion of high grade semi-conductor during deposition, a piece of lower grade is electrically connected thereto to act as a sacrificial anode. Ion-bombarded semi-conductor is etch resistant and the bombarded substrate may thus be etched, e.g. using ferricyanide in non-bombarded areas prior to deposition. A pre-treatment to remove any surface stresses is advantageous in preventing unwanted depositions. A deposit definition as low as 0À3Á is possible.
Patent GB-1167970-A (GB)
Title: Improvements in or relating to Spot Type Disc Brakes.
IPC: F16D65/14
Filed: 1967-10-04
Abstract: 1,167,970. Fluid operated disc brakes. ALFRED TEVES G.m.b.H. 4 Oct., 1967 [1 Dec., 1966], No. 45245/67. Headings F2E and F2F. The annular end face of a hollow disc-brakepiston is divided by chordal shoulders 12 into two regions 14, 15 of different height and the piston is provided with a further surface of still higher level. Such a piston has anti-squeal properties. As shown, the further surface is formed at 16. It may alternatively have its shoulders 13 at right angles to those illustrated (Fig. 2, not shown) or may be formed by an insert 16 (Fig. 4) or by a ring-shaped member 19 (Fig. 7) fitted into a rebate 22 and having a raised lip 20.
Patent GB-1482530-A (GB)
Title: Friction pad for a disc brake
IPC: F16D69/00
Filed: 1974-10-18
Abstract: 1482530 Disc brakes; brake pads; reducing brake noise SOC ANON DBA 18 Oct 1974 [8 Nov 1973] 45281/74 Heading F2E The preferred description of the Specification is generally the same as that of the complete Specification 1,482,529, but the claims are directed to the friction pad per se.
Patent GB-1287440-A (GB)
Title: Rotary sliding vane pump or motor
IPC: F04C2/344
Filed: 1969-09-15
Abstract: 1287440 Rotary positive-displacement machines PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 15 Sept 1969 [18 Sept 1968] 45401/69 Heading F1F An hydraulic sliding-vane pump, or motor, has a rotor 1 with flanges 12, 13 and radial grooves 2 containing vanes 3, the angle # between adjacent grooves being equal to or, less than half the # subtended by each part-cylindrical portions 16, 17 of the inner surface of the housing circumferentialwall so that at least two vanes always lie between inlet and outlet ports 5, 6 and 7, 8. The vanes are capable of tilting slightly, Fig. 3, so that due to friction and pressure variation they are inclined first backwards and then forwards while travelling between the inlet and outlet ports. This provision is said to obviate pressure ripples or speed variation. Grooves 26, 27 extend circumferentially from the ports and permit leakage across the adjacent vanes that in total is equal to the leakage across the vane undergoing a change of inclination so that the flow resistance between the ports remains constant.
Patent GB-1532245-A (GB)
Title: Process for the manufacture of plastics dispersions
IPC: C09D157/10
Filed: 1975-10-31
Abstract: 1532245 Modified glycidyl polymers HOECHST AG 31 Oct 1975 [31 Oct 1974] 45401/75 Heading C3P A plastics dispersion suitable for paint manufacture is obtained by reacting (1) a copolymer dispersion prepared by polymerizing in an aqueous medium a monomer mixture containing 0À5-10 wt per cent of a glycidyl ester of an unsaturated carboxylic acid and one or more monomers selected from vinyl esters, acrylic or methacrylic esters, unsaturated hydrocarbons, vinyl halides, diesters of maleic or fumaric acid, and unsaturated acids or derivatives thereof with (2) ammonia, or a precursor thereof, in an amount at least equivalent to the glycidyl groups, said reaction being effected at a temperature of at least 50 C. If the copolymer contains free carboxyl groups it is preferred to use sufficient ammonia to neutralize these. In Examples, (1) vinyl acetate/glyoidyl methacrylate, (6) vinyl acetate/vinyl isononanoate/glycidyl crotonate, (11) vinyl acetate/dibutyl maleate/glycidyl acrylate, (16) vinyl acetate/ vinyl decanoate/glycidyl crotonate and (18) butyl acrylate/styrene/acrylic acid/methacrylic acid/glycidyl methacrylate copolymers are reacted with NH 3 ; and (17) methyl methacrylate/ 2-ethylhexyl acrylate/acrylic acid/methacrylic acid/glycidyl methacrylate copolymer is reacted with hexamethylene tetramine.
Patent GB-1291447-A (GB)
Title: Slalom game
Inventor: GOLDFARB ADOLPH E
IPC: A63F7/38
Filed: 1971-09-29
Abstract: 1291447 Indoor games A E GOLDFARB 29 Sept 1971 [29 Sept 1970] 45433/71 Heading A6H A game board comprises a wide end 13 with sidewalls 15, 17 tapering to a narrow end 19 and a playing surface extending concavely between the two sides of the board along the centre of which playing surface is a series of apertures 27, the playing surface being inclined downwardly towards the narrow end 19. The object of the game is to roll a spherical playing piece 29 onto the board so that it will move from side to side along a path 49 and avoid all the apertures except the one adjacent the narrow end. An adjustment screw 37 is provided for altering the inclination of the board and receptacles 51 are provided for storing the playing pieces.
Patent GB-1492055-A (GB)
Title: Concentration of sulphuric acid
IPC: B01D1/26
Filed: 1974-10-21
Abstract: 1492055 Concentrating sulphuric acid HOECHST AG 21 Oct 1974 [20 Oct 1973] 45491/74 Heading ClA [Also in Division B1] Dilute aqueous sulphuric acid of at least 20% acid is concentrated and purified by direct contact with superheated steam, preferably by spraying the acid countercurrent to the steam; the vapour from this step is used to pre-heat and partially concentrate incoming acid of up to 50% acid by indirect heat exchange before the acid is fed to the directcontact concentration. The finally concentrated acid is preferably cooled and centrifuged so that impurities crystallize and are separated, e.g. those obtained from salts of a volatile acid initially present, the volatile acid being removed during the concentration.
Patent GB-973424-A (GB)
Title: Apparatus for curing seams of heat-softenable sheeting
IPC: B29C65/18
Filed: 1961-12-21
Abstract: <PICT:0973424/C3/1> An apparatus for curing rubber seams in sheets of rubberized fabric comprises a worktable R, a support thereover S, an elongated heating element E, and two elongated holding elements L arranged adjacent the longitudinal edges of the heating element, the said holding elements being adapted to hold the sheets firmly to the table during seaming by exerting pressure on the sheets near the seam, means for raising and lowering the elements and for enabling the position of the heating element to be adjusted so that it can be adjusted so that it can be arranged in correspondence with the position of the seam and brought into contact with the sheets at the position of the seam.
Patent GB-1104420-A (GB)
Title: Stabilization of polyoxymethylenes with recovery of formaldehyde monomer
IPC: C08G2/38
Filed: 1966-10-13
Abstract: A process of stabilizing polyoxymethylenes by the base-catalysed depolymerization of unstable fractions thereof comprises the steps of (i) heating a dispersion consisting of up to 25% by weight of a polyoxymethylene dispersed in a water methanol, or ethanol solution of 0.1 to 1.0% by weight of a tertiary amine catalyst, 0 to 0.02% by weight of a metal hydroxide catalyst, and 0-30% by weight of formaldehyde, to a temperature at which the polymer dissolves; (ii) holding the resulting solution at said temperature for 15-60 minutes; (iii) cooling the solution; (iv) and separating the resultant base-stabilized polymer from the solution containing formaldehyde monomer. Tertiary amines specified are trimethyl-, triethyl-, and tributyl-amines, pyridine, N-ethyl piperidine, quinoline, and isoquinoline. Specified hydroxides are those of sodium, potassium, cerium, and thallium.  The polyoxymethylenes may contain carbon-carbon linkages in the backbone of the polymer.  In the examples, a polyoxymethylene was mixed with (1) a methanolic solution of formaldehyde and trimethylamine; (2) a methanolic solution of triethylamine; and (3) and (4) a methanolic solution of formaldehyde, N-ethylpiperidine, and sodium hydroxide, the dispersions heated, with agitation, to 160 DEG  C., held at this temperature for 30 minutes, cooled to room temperature, and filtered.ALSO:A process for producing formaldehyde monomer by the base-catalysed depolymerization of unstable fractions of a polyoxymethylene comprises the steps of (i) heating a dispersion consisting of up to 25% by weight of a polyoxymethylene dispersed in a water, methanol, or ethanol solution of 0.1 to 1.0% by weight of a tertiary amine catalyst, 0 to 0.02% by weight of a metal hydroxide catalyst, and 0-30% by weight of formaldehyde, to a temperature at which the polymer dissolves, (ii) holding the resulting solution at said temperature for 15-60 minutes, (iii) cooling the solution, and (iv) separating the resultant base-stabilized polymer from the solution containing formaldehyde monomer.  Tertiary amines specified are trimethyl-, triethyl-, tributyl-amines, pyridine, N-ethylpiperidine, quinoline and isoquinoline.  Specified hydroxides are those of sodium, potassium, cesium, and thallium.  In the examples, a polyoxymethylene was mixed with methanolic solutions of (1) formaldehyde and trimethylamine, (2) triethylamine, and (3-4) formaldehyde, sodium hydroxide and N-ethyl-piperidine, the dispersions heated with agitation to 160 DEG C., held at this temperature for 30 minutes, cooled and filtered to give a formaldehyde solution as filtrate, having a concentration of formaldehyde between 6 and 15%.
Patent GB-1166476-A (GB)
Title: A Method of Impulse Pressure Welding
IPC: B23K20/06
Filed: 1966-10-14
Abstract: 1,166,476. Welding by pressure. KUIBYSHEVSKY AVIATSIONNY INSTITUT. 14 Oct., 1966 [14 Oct., 1965], No. 46040/66. Heading B3R. In pressure welding two parts by subjecting them to the force of interaction of magnetic fields, a pulse of high-intensity current is supplied to an inductor to produce a magnetic field which induces current in one part to be welded, the induced current producing a further magnetic field which reacts with the magnetic field of the inductor to produce the force in the form of an impulse on said one part and the parts are spaced apart and overlapped to form an acute angle therebetween. Parts 1, 2, Fig.1 have their adjacent surfaces cleaned and degreased and arranged to overlap with an angle α therebetween and a gap of 8 at their closest point. An inductor 3 is provided on the part 2, the part 1 being secured to a support 4, and an impulse of current is supplied to the inductor which causes the part 2 to be thrust against part 1 and welded thereto. In an example an aluminium pipe 5, Fig. 2, is secured in a die 6 while the end of an aluminium pipe 7 is provided with a frusto-conical end in which is located the inductor 8. The outer pipe may have a thicker wall than the inner pipe. In another example the inner pipe is not tapered but is secured to a mandrel while the end of the outer pipe has its end outwardly conically flared, the inductor being fitted on this flared portion. In a modification the inner pipe is replaced by a solid rod. When a pipe of stainless steel is to be welded to a pipe of aluminium the formre is preheated to 400-450‹ C.
Patent GB-1105390-A (GB)
Title: Prevention of cold flow in polybutadienes
IPC: C08C19/26
Filed: 1965-11-01
Abstract: Butadiene-1,3 is polymerized, e.g. in a hydrocarbon diluent and in the presence of a stereospecific catalyst to produce a butadiene polymer containing at least 85% cis-1,4-units, and prior to deactivation of the catalyst there is added to the polymerization a halogenated organic compound containing olefinic unsaturation or an ether linkage and containing at least two halogen atoms attached to carbon atoms which are adjacent the double bond or the ether oxygen atom.  After the addition of the halogenated compound the polymerization mixture may be held at a temperature of 10 DEG  to 250 DEG  F. for from 5 minutes to 5 hours before inactivation of the catalyst.  The Specification includes lists of halogenated compounds and catalysts.  The deactivation of the catalyst is effected by conventional low-pressure methods.  In Example I, the polymerization is effected with a catalyst consisting of triisobutylaluminium, I2, and TiCl4, and hexachlorpropene and hexachlorocyclopentadiene added to different runs, and subsequently the polymer recovered after addition of an isopropyl alcohol solution of 2,21-methylene-bis-(4-methyl-6-tert.-butylphenol), and in Example II butadiene was polymerized under the same conditions as Example I, except that the halogenated compound used was bis(chloromethyl) ether.
Patent GB-1166284-A (GB)
Title: A Large Capacity Ferromagnetic Thin Film Memory Device.
IPC: G11C11/14
Filed: 1966-10-14
Abstract: 1,166,284. Magnetic thin film matrices. FUJITSU Ltd. 14 Oct., 1966 [14 Oct., 1965], No. 46168/66. Heading H3B. A memory matrix comprises an array of thin magnetic films 101 with column and row drive lines 102, 103 and corresponding selective drive circuits 106, 117, the row drive lines being divided into two parallel-connected halves connected at each end to one section of the selective drive circuit 117, the two halves of each row drive line being connected to different primary windings of a transformer, the secondary winding of which is connected to output utilization circuitry 108, whereby when a single element 101 is interrogated by coincident energization of selected row and column drive lines the effect of the row drive current in the output circuitry is eliminated. The output utilization circuit 108 comprises a differential amplifier having one input fed directly from the transformer secondary and the other fed via a delay line. The amplifier is strobed. The memory elements may be planar films or coatings on conductors.
Patent GB-1094804-A (GB)
Title: Process for producing hydrogen peroxide
Inventor: CAMPBELL JOHN STEWART
IPC: C01B15/029
Filed: 1963-11-22
Abstract: Hydrogen peroxide is produced by contacting hydrogen and oxygen with a solid catalyst in the presence of water and a reduced form of a quinone, such as polyhydric phenol which can form an ortho- or para-quinone, e.g. hydroquinone, preferably in a concentration of not more than 20 mg./l. (calculated as equivalent hydroquinone).  A hydrogen peroxide stabilizer may be present, e.g. salts of condensed phosphoric acids and boric acid. The reaction mixtue may have an acidity of at least 0.1 N, and preferably is at least as strong as acetic acid, and may have an inorganic acid radical, e.g. H2SO4 and/or HCl.  An oxygen-containing organic compound, e.g. acetone, may also be present.  Catalysts used are Group IB or Group VIII metals, e.g. palladium.
Patent GB-1491319-A (GB)
Title: Containers having closure flanges or bushes
IPC: B65D55/02
Filed: 1975-11-07
Abstract: 1491319 Containers with Bunghole bushes AMERICAN FLANGE & MFG CO Inc 7 Nov 1975 [11 Nov 1974] 46254/75 Heading B8T A container has a wall 19 whose opening contains a metal bush 5 comprising an internally screw-threaded neck 6 having at one end an outwardly flared bead 22 and at the other end a non-circular, and preferably octagonal, base 9 against which rests a resilient sealing gasket 18. The bush is encased within an embossment 3 comprising a collar 20, an annular gasket-receiving pocket 24, a flattened section 24a overlying the base 9 and a downwardly extending octagonally shaped wall 25 which extends below the bottom 10 of the base 9.
Patent GB-1389840-A (GB)
Title: Metalmelting cupola furnaces
IPC: F27B1/16
Filed: 1971-10-06
Abstract: 1389840 Cupola furnaces BRITISH CAST IRON RESEARCH ASSOCIATION 5 Oct 1972 [6 Oct 1971] 46417/71 Heading F4B [Also in Division C7] A cupola furnace comprises two identical rows of tuyeres 1 and 2 with separate windbelts 3 and 4 supplied from fans 5 and 6 through air weight controllers 7 and 8, the vertical spacing between the tuyeres lying between 500 mm. and 1370 mm. preferably substantially 915 mm. The proportion of total blast at each of the two levels is between 35% and 60% of the total preferably substantially 50%. Specifications 1,198,157 and 332,322 are refered to.
Patent GB-1118596-A (GB)
Title: A machine for treating synthetic fibre fabrics
IPC: D06C5/00
Filed: 1965-11-03
Abstract: 1,118,596. Finishing fabrics. J. G. HORTOLA. 3 Nov., 1965 [3 Nov., 1964], No. 46542/65. Heading D1S. A machine for heat setting hosiery fabrics made from synthetic fibres comprises a hollow cylindrical body 1 divided, by an inner transverse partition 2, into a lower portion 3 which is downwardly closed and entirely hollow and an upper portion 4 which is closed at its upper end and provided with an annular peripheral zone 5 which, by conduits 6, 61 orientated towards the centre, communicates with a vertical central conduit 7 through which extends the motor-driven spindle 8 of an agitatorimpeller 9 suitably mounted to produce circulation of a liquid, e.g. oil, which fills the zone 5 and is heated by electrical resistors 10 mounted in the zone 5. In use. the fabric (not shown) passes over the free ends of parallel guides 41, 41', Fig. 2 (not shown), and is assisted in its movement by pulleys 40 driven by a motor 38. The fabric is spread by diverging end portions 42, 42' of the guides 41, 41'. The fabric passes between rollers 15, 15' and 12. 12' and then between rollers 12. 12' and 16. 16', the roller 12 being driven at an adjustable speed by the motor 38. The fabric next passes in a zig-zag path between a movable inverted U-section annulus 21 and a fixed U-section annulus 19. A cylindrical partition 20 extends upwardly from the base of the annulus 19. The annulus 21 is mounted on supports 22 which are vertically movable by a mechanism 23 to alter the position of the annulus 21 in the annulus 19 to alter the resistance offered by the annuli 19. 21 to the fabric. The fabric then slides on the portion 4 on which it is heat treated and is cooled on the portion 3. On leaving the body 1, the fabric is taken up by rolls 31, 32, 33 and is folded on leaving the latter. The roll 32 is driven by a motor 35 and the rolls 31, 33 are free running. The body 1 depends from a hollow bar 13 and is prevented from lateral oscillation or vibration by small rollers 28 supported on a ring 27 and which bear against the outer face of the body 1.