baber/WOPTO huggingface dataset:
Patent GB-1301167-A (GB)
Title: Improvements in or relating to roll stands
IPC: B21B37/64
Filed: 1970-10-28
Abstract: 1301167 Automatic control of rolling BROWN BOVERI & CO Ltd 28 Oct 1970 [30 Oct 1969] 51326/70 Heading G3R The thickness of material issuing from a hydraulically-adjusted roll gap is measured directly and also computed from measurements of roll force, no load roll spacing, roll stand modulus, hydraulic liquid temperature and rolling speed, the signals being combined to control the datums of closed-loop control systems for roll gap and roll pressure to control hydraulically the forces applied at each end of the rolls. As shown, the thickness of material 11 issuing between rolls 2 and 6 is measured at 44 and compared with a desired value set at 43 so that any error is applied to update a store 34 periodically. The signal from store 34 is applied through a regulator 32 to regulators 30 and 31 which, through regulators 28, 26, 25 and regulators 29, 27, 24 respectively cause operation of pilot valves 18, 19 to remove the error by controlling hydraulic rams 13, 12 forcing each end of roll 2 towards roll 6. Feedbacks dependent on hydraulic pressure and ram position are applied from transducers 20, 21 and 22, 23 respectively. Relief valves 14, 15 prevent excessive hydraulic pressure and valves 16, 17 permit reduction of pressure e.g. for removing a roll. A signal representing the thickness of material leaving the rolls is also computed at 36 from the average of the pressures 20, 21 produced at 42, the mill modulus set at 40, and the average of the ram positions 22, 23 produced at 37. This signal is compensated for variations of rolling speed and hydraulic fluid temperature and pressure by signals from transducers 45, 46, 39 and then combined at 33 with a further signal representing desired thickness from unit 43 so that any difference is applied as a coarse error signal to the control system. The control signals may be analogue or digital.
Patent GB-1070020-A (GB)
Title: Thermoplastic articles, and methods and apparatus for manufacturing them
IPC: B29C57/12
Filed: 1963-12-31
Abstract: 1,070,020. Moulding hollow thermoplastic articles. ILLINOIS TOOL WORKS Inc. Dec. 31, 1963 [Dec. 31, 1962], No. 51401/63. Addition to 1,010,603. Heading B5A. In a method of forming a beaded article from thermoplastic sheet material as described in the parent Specification, after severing, the peripheral portion of the sheet material 36 is compressed between opposed surfaces 72 and (120), (Fig. 4, not shown) of two members 66 and 102 and caused to flow in a direction transverse to the direction of movement of the member 66 and so form a bead 34 (Figs. 1, 1A, not shown). Preheated sheet material 36, e.g. polystyrene is supported between two mould sections 38, 40. The upper mould 40 is connected to an air pressure source 54, and consists of an upper annular clamp 56 engageable with the top side of sheet 36, a ring 60 having a necked-down lower portion 62, a mandrel portion 66 having a side wall 68, and a sheet shearing edge defined by wall 68 and a lower mandrel surface 72. The mandrel portion 66 has a central bore 74 in which is mounted an insert 76 supporting a heat-insulating plug 80 having a bore 82. The bottom of the lower mould cavity is formed by the enlarged head of a knockout plug 96 which is slidable in a mould base insert 94 and movable independently of the mould 40 to eject the finished article. A substantially cylindrical mould member 102 has a shoulder 107 and threaded portion 108 adapted to receive an external ring 110. The ring 110 has a necked-down upper portion 112 which is operable to protrude between part 62 and side wall 68 of the mandrel 66. The top surface 114 of the portion 112 defines a cut-off corner (116) which co-operates with the corner 70 of the mandrel portion. An inner mould insert 104 is disposed inside member 102. A lower annular clamp 86 cooperating with clamp 56 is operable independently of the mould 40. In operation, the sheet 36 is firmly clamped between members 56 and 86, and is mechanically prestretched by movement of plug 80 relative to the clamps. The lower mould is actuated so that the parts assume the position seen in Fig. 3 (not shown) and air under pressure is admitted from source 54 to force the sheet against the female lower mould. With the air pressure still on, the mandrel is actuated to sever the material between corners 70 and (116) and then moved to the position seen in Fig. 4 (not shown). Thus a bead 34 is formed by compression between the surfaces 72 and 120, and the air pressure forces the material of the bead into intimate engagement with the portion 112 at the outer periphery of the bead. By modifying the shapes of surfaces 120, 118 and 112 beads of various crosssection may be obtained (see Figs. 5, 6C, 7C, 8, 9, not shown). The surface may be made of irregular cross-section to provide a series of projections on the bead. Instead of using an air pressure source, the container may be vacuum formed.
Patent GB-1071697-A (GB)
Title: Magnetic roller for use in the development of latent electrostatic images
IPC: G03G15/09
Filed: 1964-12-17
Abstract: 1,071,697. Rollers. KALLE A.G. Dec. 17, 1964 [Dec. 18, 1963], No. 51423/64. Heading F2U. [Also in Division G2] A magnetic roller, for use in developing electrostatic images, has pole shoes 1 of soft iron separated by strips 2 of non-magnetic material forming a tubular shell. A core formed by a round bar 3 of soft iron, has permanent magnets 4 magnetized, so that the poles facing the shell are of alternate N and S polarity, the magnets being spaced apart by non-magnetic material. The core is rotatable relatively to the shell. In the position shown, a permanent magnet is positioned under each shoe 1, such that the lines of force 6 extend outside the shoes, thereby attracting developer having a magnetic carrier. In the Fig. 2 (not shown) position, the magnets 4 are each opposite a strip 2 and the roller does not attract developer. The relative rotation between the core and shell may be effected automatically e.g. as a result of movement of an image carrying surface. In a modification, Fig. 3 (not shown) a curved sheet (12) of highly permeable metal is held in a fixed position, so that adjacent pole shoes are not magnetized. The cores may alternatively be formed by a sleeve (17), Fig. 4 (not shown) magnetized radially or by a rod (18), Fig. 5 (not shown) circumferentially magnetized.
Patent GB-1270670-A (GB)
Title: Rolling sheet or strip from particulate material
Inventor: STURGEON GEORGE MCHARDY
IPC: B29C43/24
Filed: 1968-10-30
Abstract: 1,270,670. Rolling powders. BRITISH IRON & STEEL RESEARCH ASSOCIATION. 29 Oct., 1969 [30 Oct., 1968], No. 51450/68. Heading B5A. [Also in Division G3] The density and thickness of metallic sheet issuing from a pair of rolls supplied with particulate material are maintained constant by means maintaining a constant roll gap and means controlling the feed of material to the rolls in dependance on a density measurement of the issuing sheet. In Fig. 1, particulate material 24 supplied between plates 22a is compressed by rolls 21 to form strip of constant thickness the density of which can then be measured by a gamma radiation gauge 12. Signals from the gauge are compared at 16 with signals from a rheostat 14 which is set to correspond with a desired density so that any difference, representing error, is effective through an amplifier 20 to operate a servomotor 18 to correct the density by varying the longitudinal position of plates 22a and thus the rate of feed to rolls 21. Thickness is maintained constant either by using a sufficiently rigid apparatus which maintains a constant roll gap or, as shown, by automatically controlling the force applied to one of the rolls by an hydraulic jack 32. In the latter arrangement, the size of the gap, computed from the outputs of transducers 40 and 45 responsive to jack position and pressure, is compared with a desired gap selected by a potentiometer 38 so that any difference is eliminated by controlling, through an amplifier 48, the pressure supplied to the jack by a motor-driven hydraulic pump 28. Adjustment of an obstruction between plates 22a instead of adjustment of the plates, and use of electric or hydraulically operated screws or wedges instead of jacks are referred to.
Patent GB-1528179-A (GB)
Title: Stabilizing agent for colour photographic materials
IPC: C07D498/10
Filed: 1975-12-18
Abstract: 1528179 spiroimidazolines AGFAGEVAERT AG 18 Dec 1975 [20 Dec 1974 28 June 1975] 51808/75 Heading C2C [Also in Divisions G2-G3] Spiroimidazolidine compounds of the formula in which R and R<SP>1</SP> which may be the same or different, represent hydrogen, alkyl, aryl, aralkyl, cycloalkyl or halogen, or R and R<SP>1</SP> together represent the carbon atoms required to complete a condensed cyclohexene, cyclohexadiene or benzene ring, X represents oxygen or -NH- and Y represents oxygen, sulphur or -NH- are prepared by reacting cyanamide with oxalyl chloride to give 2,2-dichloroimidazolidine-dione-(4,5) which is then reacted with the appropriately ortho-disubstituted phenyl compound. In an example the compound used is pyrocatechol, the product being spiro- [1,3 - benzodioxol - 2,21 - imidazolidine] - 4<SP>1</SP>,5<SP>1</SP>- dione. In place of pyrocatechol there can be used 4 - chloropyrocatechol, 4,5 - dichloropyrocatechol, 3,4 - dihydroxy - tert.butylbenzene, 3,4 - dihydroxy - cyclohexylbenzene, 3,4 - dihydroxy - tert.octyl - benzene, oaminophenol, o - aminothiophenol and ophenylenediamine.
Patent GB-522762-A (GB)
Abstract: 522,762. Goggles. DURHAM, H. N., and FINNEGAN, G. B. Dec. 15, 1938, No. 36590. Convention date, Dec. 15, 1937. [Class 97 (i)] [Also in Group XXI] For use in gun fire control, the gunner is furnished with pair of goggles 11 having means controlled by a flank observer for suddenly moving a colour filter across the gunner's line of vision to inform him when the projectile has reached a selected point on its trajectory. The goggles are shown adjustably mounted on a frame 65 carried by a forehead strap 60. The lenses of the goggles have a transparent colourfiltering element 11 with a clear central aperture 12. The colour filter may be used as the cementing layer between two sheets of glass to form safety glass lenses. A colour-filter shutter 13 for each aperture 12 is carried from a frame 15 connected to the pivoted armature 29 of an electro magnet 25 mounted on the plate 22 supporting the lenses. To suit the goggles for different wearers, the interpupillary distance is varied by turning a right-and-left handed screw 52 which turns the lens frames about pivots 23. Further, the plate 22 is pivotally and adjustably supported on the forehead frame 65 and fixed by a clamp 71.
Patent GB-1064652-A (GB)
Title: Improvements in or relating to grain conveyors
Inventor: PFUTZNER ERICH
IPC: A01F12/46
Filed: 1964-12-24
Abstract: 1,064,652. Combine-harvesters. KOMBINAT FORTSCHRITT, LANDMASCHINEN V.E.B. Dec. 24, 1964, No. 52386/64. Heading A1F. [Also in Division B8] A grain conveyer for pre-cleaning threshed grain comprises an endless belt 3 extending beneath a thresher concave 1 and a shaker 2, to a sieve cleaner 6, the belt being provided on its outer surface with an open cell formation. A suction device 7 is disposed above the belt and sucks short straw pieces and chaff &c. away from the grain to effect pre-cleaning upstream of the sieve cleaner.
Patent GB-1242579-A (GB)
Title: Sec-butyl benzamide derivatives and their use as herbicides
Inventor: ARSURA EMILIO
IPC: C07C63/70
Filed: 1968-11-06
Abstract: 1,242,579. Herbicides containing benzamides. MONTECATINI EDISON S.p.A. F. GIALDI R. PONCI and A. BARUFFINI. 6 Nov., 1968 [9 Nov., 1967; 8 Oct., 1968], No. 52474/68. Heading ASE. [Also in Division C2] Herbicidal compositions containing as active ingredient a compound of the formula I wherein X represents a chlorine, bromine or iodine atom, or a methyl group, Y represents a halogen atom or a methyl group, Z represents an alkyl C 1-5  group and n is 1 or 2 and when n is 1 or 2 X and Y may not both be methyl groups, stated to be novel, together with a solid or liquid carrier, are applied in the form of powders, granules, wettable powders and emulsions for the pre- and post-emergency treatment of crops, especially of rice crops. Many compounds of formula I are listed.
Patent GB-1316476-A (GB)
Title: Bromonitroalkyl esters of salicyclic acid process for their production and antimicrobial compositions
IPC: A61K8/00
Filed: 1970-11-05
Abstract: 1316476 Antimicrobial compositions containing bromonitroalkyl esters of salicylic acid HENKEL & CIE GmbH 5 Nov 1970 [6 Nov 1969] 52618/70 Headings A5B and A5E [Also in Divisions C2 and C5] Anti-mocribial compositions comprise as active ingredient a bromonitro alkyl ester of salicylic acid of the general formula: in which R 1  represents hydrogen or a methyl residue, which may be substituted by one or more halogen atoms and R<SP>2</SP> represents hydrogen or a methyl or ethyl residue which may be substituted by one or more hydroxyl groups. The composition may be formulated as solutions, ointments, powders, shampoos, deodorants, sprays and pencils, hand washing pastes, fine washing compositions and foam baths. Examples of each are given.
Patent GB-1165380-A (GB)
Title: Apparatus for Transforming a Rotary Motion into a Reciprocating Linear Movement
IPC: F16H25/12
Filed: 1967-11-20
Abstract: 1,165,380. Gearing for converting rotary to reciprocatory motion. SOC. RHODIACETA. 20 Nov., 1967 [21 Nov., 1966], No. 52687/67. Headings F2K and F2Q. Apparatus for converting rotary to reciprocatory motion comprises two rollers 2, 3 rotatable about parallel axes, with a generatrix of one roller parallel to a generatrix of the other, the surface of each roller having two helical cam grooves 14, 15 of opposite hand, the groove pitches of one roller being different from those of the other roller in the same ratio, and a slide 7 linearly movable parallel to said generatrices and carrying followers 19, 21 which engage the cam grooves of respective rollers so that as the rollers rotate, the slide is reciprocated, the rollers being interconnected by gears 12, 13 to rotate at speeds in the inverse ratio to the pitches of the helical grooves thereon. In Fig. 3 (not shown) an idler pinion (24) between the gears (12, 13) causes both rollers to rotate in the same direction. In Fig. 4 (not shown) only the portions (16a, 17a) of the grooves on the roller (3) necessary to carry the follower across the groove intersections of roller (2) are provided. In Fig. 9 (not shown) frusto-conical rollers (2a, 3a) are used, with the large end of one adjacent the small end of the other. In Fig. 11 (not shown) two coaxial rollers (2, 3) with cam grooves of different pitch are used, interconnected by layshaft gearing. In Fig. 10 (not shown) three cylindrical rollers are used, with three followers on the slide. The followers may be rollers journalled on axles, cylindrical pins as at 25 (Fig. 5) rotatably mounted in the slide 7, or pins of rhombic cross-section which slide in the cam grooves. Fig. 8 shows followers angled one relative to the other. One or both rollers 2, 3 may be of reduced diameter at an end or at opposite ends respectively, to facilitate replacement of followers, so long as there remains one reversing groove 18 at each end of the mechanism to control the slide.
Patent GB-1326059-A (GB)
Title: Isomerization of butene-1 to cis-butene-2
IPC: C07C5/25
Filed: 1970-11-05
Abstract: 1326059 Isomerizing butene-1 to butene-2 PETRO-TEX CHEMICAL CORP 5 Nov 1970 [24 Nov 1969] 52753/70 Heading C5E Butene-1 is isomerized to butene-2 (mainly cis) by contact in the liquid phase at a feed rate of 5-15 LHSV with a molecular sieve catalyst of effective pore size of from more than 5 to 8 which has been activated by heating to at least 300 C. The molecular sieve is preferably of the X-type. The isomerization may be effected at 50-150 C. under a pressure sufficient to maintain the butene in the liquid phase. The used catalyst may be regenerated by heating to 400-600 C. in a non-reactive atmosphere. Other hydrocarbons such as n-butane and butene-2 may be present in the feed.
Patent GB-1274729-A (GB)
Title: Marine seismic gas exploder systems
Inventor: THIGPEN BEN BURT
IPC: G01V1/108
Filed: 1969-10-30
Abstract: 1,274,729. Seismic energy generators. WESTERN GEOPHYSICAL CO. OF AMERICA. 30 Oct., 1969 [29 Nov., 1968; 7 April, 1969], No. 53316/69. Heading H4D. [Also in Division F1] Combustion products resulting from the firing of a marine seismic energy generator comprising an expandable combustion chamber in which a combustible mixture is detonated are exhausted from the chamber only after a predetermined time, when the chamber internal pressure has decreased to a level below the ambient hydrostatic pressure. This ensures that the combustion products cushion the collapse of the chamber immediately after the detonation and chamber expansion, thereby preventing generation of a disturbing seismic rarefaction pulse. The generator may be similar to that in Specification 1,246,350, comprising an expandable sleeve supported by end seals mounted on tubes through which cooling water flows, and having a vacuumoperated exhaust system. An exhaust valve, preferably actuated by the slave unit of Fig. 6, has its opening and closing controlled by a timing circuit. In Fig. 6, solenoid valve 43 is operated in timed relation to the firing, when the chamber pressure is approaching its minimum value (below atmospheric, due to cooling and condensation of combustion products), thereby applying the pressure of one of the fuel gases from conduit 41 to diaphragm 202 to lift exhaust valve 222 from its seat 224. Exhaust gases from a coupling 52 with the combustion chamber (not shown) then pass via flamearrester 112 and the valve 222 to evacuated outlet 46. Solenoid valve 43 is then returned to the position shown to expose diaphragm 202 to the low pressure in outlet 46 and so close exhaust valve 222. Seismic recording equipment, exhaust valve timing circuits, and vacuum pumping equipment may be carried on a ship used to tow the generator. Reference has been directed by the Comptroller to Specification 1,164,402.
Patent GB-1488478-A (GB)
Title: Liquid metal cooled nuclear reactors
IPC: G21C17/08
Filed: 1974-12-12
Abstract: 1488478 Monitoring nuclear reactors UNITED KINGDOM ATOMIC ENERGY AUTHORITY 12 Nov 1975 [12 Dec 1974] 53863/74 Heading G6C In a liquid metal cooled nuclear reactor employing ultrasonic waves to locate and identify components submerged in the pool of liquid metal and to ensure that absorber rods are inserted in the core when required, dip tube 4 containing the liquid metal acts as a wave guide for transmitting signals to and from ultrasonic transducer 5, and to protect transducer 5 from contact with hot liquid metal, vacuum apparatus 7 draws liquid into the dip tube in a plurality of stages whereby the upper part of the column of liquid is cooled by cooling means 8 before the transducer is submerged. The need to interrupt the column with an isolating diaphragm, with consequent attenuation of the signal, is avoided. As shown in Fig. 2a the part of dip tube 4 containing transducer 5 extends into a member 12 providing two gas-tight compartments 15, 16. The dip tube, compartments 15 and 16 and vacuum source 7 or outlet 29 are connected in series by valves and pipes whereby the capacity of chamber 15 effects a first lift of liquid metal as far as cooling means 8 and the capacity of chamber 16 effects a second lift to submerge transducer 5. Member 12 is longitudinally adjustably keyed to a rotatably mounted sleeve (Fig. 2a, not shown). In use, the dip tube is covered to the required depth and scanning is effected by rotation of the assembly and pivoting of mirror 51. Reflected ultrasonic signals are converted into electrical signals which are fed by lead 27 to display apparatus 28. Gas-filled jacket 52 prevents ultrasonic radiation into the surrounding medium.
Patent GB-1377901-A (GB)
Title: Process for the manufacture of n-substituted indoles and new n- substituted indoles
IPC: C07D209/08
Filed: 1972-11-22
Abstract: 1377901 Indole derivatives CIBA-GEIGY AG 22 Nov 1972 [26 Nov 1971 23 Oct 1972] 53979/72 Heading C2C  The invention comprises indoles of the Formula (I) in which R 1  is a C 6  alkyl radical or a C 3 -C 18  alkenyl radical, R 2  is hydrogen or a C 1 -C 4  alkyl radical and R 3  is a C 1 -C 4  alkyl radical, an aryl radical or hydrogen, indoles of Formula (II) in which R 2  is a C 2 -C 18  alkyl, a C 3 -C 18  alkenyl radical, or an alkyl or alkenyl radical substituted by halogen, hydroxy, C 1 -C 4  alkoxy or alkylamino group, R 2  is hydrogen or a C 1 -C 4  alkyl radical, R 3  is a C 1 -C 4  alkyl radical and R 4  is C 1 -C 4  alkoxy radical; and also a method of making these and other N-substituted indoles by treating an indole with a base in dimethyl sulphoxide or in a dipolar aprotic solvent with a tertiary acid amide group, e.g. dimethyl formamide or dimethyl acetamide and subsequently reacting it either with a compound of formula R-X in which X is a leaving group and R represents an optionally substituted alkyl or alkenyl radical or with an alkene which carries an electrophilic substituent at the double bond, or with an epoxide. Preferred leaving groups are halogen, sulphate or sulphonate groups and preferably R is an aralkyl, alkyl or alkenyl radical optionally substituted bycarboxylic acid, carboxylic acid ester, alkoxy or alkylamino group. Preferred electrophilio groups are cyano and carbalkoxy groups.
Patent GB-1033854-A (GB)
Title: Water-softening device
IPC: B01J49/75
Filed: 1964-02-10
Abstract: 1,033, 854. Ion-exchange. G. BAUKNECHT G. m. b. H. Feb. 10, 1964 [Nov. 9,1963], No. 5412/64. Heading B1J. In a water softening device 1 with a container 2 for regenerant liquid arranged above the exchanger and in connection therewith, the outlet 21 for liquid which has been treated is arranged above the lowest level of the regenerant container so that the level of regenerant liquid is self-adjusting.
Patent GB-1292655-A (GB)
Title: Signal transmission method
Inventor: TANAKA YUTAKA
IPC: H04N3/32
Filed: 1969-11-05
Abstract: 1292655 Facsimile system; pulse modulation circuits MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 5 Nov 1969 [7 Nov 1968 (4)] 54318/69 Headings H4F and H4L In a facsimile system in which a binary signal (pulse width modulated) signal is transmitted, e.g. corresponding to a scanned document having only black and white markings, to reduce the transmission time the scanning speed is increased (e.g. doubled or trebled) above that normally employed which results in the video signal having a frequency above the maximum picture frequency which can be transmitted by the system and to nullify this drawback the widths of the shorter pulses (corresponding to narrow markings on the document) are increased to decrease the video signal frequency. In addition the widths of the longer pulses may be decreased, both the increase and decrease in widths being effected according to a predetermined programme. As described one set of parallel shift-registers is employed to reduce the bandwidth, the white and black pulse widths being stored alternately, but to decrease the possibility of any errors arising, separate sets of parallel shift registers may be employed. At the receiver the pulse trains are modified in a complementary manner to recover the original signals. In an embodiment described the line scanning speed is increased by n times (e.g. trebled) and the frame scanning speed by n/m times (e.g. 3/2 times) where n is greater than m, only the signals from every mth line scanning (e.g. every other line scanning) being used. Thus the modified signals from each line scan may be extended over two line scan periods. Alternatively, when every line is transmitted, the modified signals may be extended into the blanking intervals.