baber/WOPTO huggingface dataset:
Patent GB-743389-A (GB)
Title: Process for the preparation of aromatic potassium sulphonates
IPC: C07C309/28
Filed: 1953-12-09
Abstract: <PICT:0743389/IV(a)/1> Aromatic potassium sulphonates are prepared from aromatic sulphonic acids by reaction with the residue, i.e. a mixture of potassium and calcium sulphites, obtained from the reaction of potassium arysulphonate and lime when passing steam or alcohol vapour through in the production of phenol or phenol ethers respectively.  The reaction is carried out in three stages as follows: (a) by treating a solution of the sulphonic acid with a part of the residue, e.g. 70 to 95 per cent of the theoretical amount needed for conversion to potassium sulphonate; (b) treating the rest of the residue with water and/or a dilute solution of potassium sulphonate; and (c) mixing the sulphonate solution obtained in (a) (either in the presence or after the separation of the precipitate therein) within the suspension obtained in (b) and subsequently separating the suspended solid material from the potassium sulphonate solution.  By this process almost all the potassium is recovered. The process is further explained by reference to the accompanying drawing.  Sulphonic acid from the vessel 11 and residue from the bunker 10 are continously mixed in the mixing tank 1, the amount of residue as regards potassium content, being about 3/4 of the theoretical amount.  Water or dilute potassium sulphonate solution from conduit 16 (see below) may be added to prevent precipitation of potassium or calcium sulphonates.  At a temperature of 90 DEG  C. in tank 1 almost all the potassium is dissolved from the residue.  The rest of the residue (about 1/4 ) is continuously fed from 10 into the mixing tank 2 and treated with water and/or dilute potassium sulphonate solution from conduit 16 (see below).  The acid mixture from tank 1, is continuously mixed with the suspension from tank 2, in mixing tank 4, and the resulting suspension is passed on to the bank filter 5, the potassium sulphonate solution obtained being conducted to the stirring tank 6.  Here the minor potassium losses are made up with potassium carbonate solution and the solution is pumped out, to an evaporator or to be recycled if it is too dilute, or if it is sufficiently concentrated to be mixed with quicklime to give a charge of potassium sulphonate-lime mixture, for use in the preparation of a phenol.  The solids filtered off are washed with water and discharged at 19, the dilute potassium sulphonate solution obtained in conduit 16 being discharged into stirring tank 6 or used in the mixing tanks 1 and 2.  A modification is the addition of a band filter on the flow between tanks 1 and 4.  In the example potassium benzene sulphonate is prepared.
Patent GB-1439026-A (GB)
Title: Flow device
IPC: F15C3/14
Filed: 1973-06-08
Abstract: 1439026 Valves SKEGA AB 8 June 1973 [18 Jan 1973] 34478/75 Divided out of 1439021 Heading F2V [Also in Division G4] In a flow control device comprising an inlet 23 and at least two outlets 24, 26, a fluid diverter plate 20 is pivotable about region F as by a piston and cylinder actuator 25, to direct the incoming fluid to one or the other outlet. The diverter 20 is inserted through a resilient socket 27 and is secured thereto by welding or curing. The side faces of the diverter may be flexible or resilient and co-operate with sealing means (not shown) located between the diverter and the adjacent side walls of the housing. The device may be formed partly or entirely of rubber or the like or wear or corrosion resistant material. A shoulder adjacent the mouth of the inlet in cavity 22 produces the Coamda effect.
Patent GB-1531833-A (GB)
Title: Castor for pulverous granular or lumpy substances
IPC: B65D47/26
Filed: 1976-08-19
Abstract: 1531833 Dispensing pulverulent material D FUCHS 19 Aug 1976 [28 Aug 1975] 34588/76 Heading B8T A closure for a caster for e.g. spices comprises a cap insert defining an aperture, and a rotatable sieve plate overlying the cap insert and having a plurality of regions 18, 19, 20 each providing at least one passage for material therethrough when the plate is rotated to overly the aperture in the cap insert, the passages in different regions being of different sizes. The regions are separated by perpendicular wall sections 21, 22, 23 which contact the underside of a cap when assembled and ensure that material passing through a passage in one region may not enter another region.
Patent GB-1005157-A (GB)
Title: Process for production of polyformaldehyde of high molecular weight
Inventor: KAUFHOLD ROBERT
IPC: F02B3/06
Filed: 1964-08-24
Abstract: Monomeric formaldehyde is polymerized in inert organic suspension in the presence of neutral inorganic sulphides as catalysts.  The sulphides may be colloidally distributed in the inert suspension media while known catalysts, e.g. aluminium trialkyls may also be present. Specefied sulphides are sodium, ammonium, copper, cadmium, iron (II), lead, molybdenum, cobalt, zinc, bismuth, sulphides and diphosphoric pentasulphide.  Diesel oil is a specified organic suspension material.
Patent GB-1478183-A (GB)
Title: Container provided with a pivotable handle
IPC: B65D25/32
Filed: 1974-08-06
Abstract: 1478183 Bail handles DAVID BOWLER & SONS Ltd 11 July 1975 [6 Aug 1974] 34603/74 Heading B8D A metal or plastics bail handle 14 is attached to opposite rivets 11 on a container by providing an elongated hole at each end of the handle, each hole having a maximum length b extending lengthwise of the handle equal to or greater than the diameter a of the rivet head 13 and a maximum width d equal to or greater than the diameter c of the rivet shank 12 but less than that of rivet head, whereby each end can be "buttoned" onto the respective rivet by twisting the respective handle end and passing the rivet head through the handle hole. As shown, the holes are of rectangular shape. In one modification, Fig. 3 (not shown), the holes are of elliptical form. In other modifications, Fig. 4 (not shown), the holes are defined by a lengthwise slot having a circular aperture superimposed thereon. The intermediate portion of the handle may be of increased thickness, Fig. 6 (not shown) or stiffened by lengthwise ribs, Figs. 9 and 10 (not shown), and provided with a suspension hole, Fig. 7 (not shown), or a transverse folding groove 18, Fig. 8 (not shown). The holes may be provided in recessed portions of the handle ends, Fig. 11 (not shown).
Patent GB-381019-A (GB)
Title: Improvements in or relating to polyphase asynchronous motors
IPC: H02K17/30
Filed: 1931-12-14
Abstract: 381,019. Induction motors. BARTHE, W. J., 1215, Josephine Street, New Orleans, Louisiana, U.S.A. Dec. 14, 1931, No. 34617. [Class 35.] To improve the power factor of an induction motor inductances are connected across intermediate points of the windings. In the arrangement shown condensers 11 are connected across the midpoints of the windings 10 of a star-connected machine. Modifications are described with delta-windings, with the condensers replaced by resistances or by the windings of a separate induction motor.
Patent GB-1351484-A (GB)
Title: Plasticised vinyl chloride polymer compositions
IPC: C08K5/098
Filed: 1971-07-23
Abstract: 1351484 Vinyl chloride polymer compositions SOLVAY ET CIE 23 July 1971 [27 July 1970] 34623/71 Heading C3P A vinyl chloride polymer composition contains chlorinated plasticizers and a stabilizer system comprising 0À1-5 parts by weight of one or more organic tin compounds and 0À1-5 parts by weight of alkali salts of unsaturated monocarboxylic acids and/or unsaturated dicarboxylic acids or unsubstituted saturated dicarboxylic acids having more than 2 carbon atoms, per 100 parts by weight of vinyl chloride polymer. The plasticizers may be chlorinated paraffins or allyl chloride oligomers prepared using aluminium trichloride or alkyl aluminium halides as catalysts. Examples of tin compounds are di-n.octyl or di-n.butyl tin, di-ethylhexylthioglycolates or dibutyl tin maleate used with sodium or potassium salts of maleic or fumaric acid, or sodium salts of phthalic, adipic, succinic, acrylic, methaorylic or itaconic acid. Compositions having a stabilizer system containing an organo tin compound with sodium oxalate, tartrate, carbonate or phosphates are disclosed for comparison.
Patent GB-208383-A (GB)
Title: Improvements in vulcanizing apparatus
IPC: B29D30/06
Filed: 1922-12-19
Abstract: 208,383. Marks, E. C. R., (Fisk Rubber Co.). Dec. 19, 1922. Vulcanizing in continuous lengths.-Apparatus for vulcanizing india-rubber in long lengths, particularly tyre-bead fillers, comprises heated grooved rotating drums, round which passes a flexible belt. Drums 20, 21, with moulding grooves and adjacent steam chambers, are surrounded by a belt 24, the tension of which can be adjusted by a movement of the journal 28 of the drum 21. A driven shaft 36 carries a worm and worm-wheel 38, on which is mounted a variablethrow crank 43, operating a ratchet mechanism 44 to give an intermittent rotation to a shaft 51, and produce a step-by-step motion of the drum 20 through the worm-wheel 52. The rubber threads are led to the drum between horizontal rollers 55, 56 and vertical rollers 57, and are pressed into the grooves by a presser foot (not shown) consisting of a block sliding on an inclined plane, and reciprocated by an eccentric on a shaft driven independently or from the main shaft 36. A second dummy foot working on the drum at an opposite angle to that of the operative foot is provided to prevent any tendency to rotation of the drum, due to the operation of the presser. The moulded fillers are now carried round between the drum 20 and band 24 and subjected to a vulcanizing heat, which heat is maintained beyond the point of separation of the drum and belt down to the point at which the threads are led off from the drum, between vertical rollers 65. The vulcanized fillers are led to containers over rollers which are driven synchronously with the drum 20 by gearing 73 - - 81. The drum 21 is similarly arranged for the simultaneous vulcanization of a number of bead fillers.
Patent GB-358336-A (GB)
Title: Improvements relating to boots and shoes for football and other sports use
IPC: A43C15/16
Filed: 1930-11-18
Abstract: 358,336. Athletic boots. NIBLOCK, F., Plantation House, Keppel Harbour, Singapore. Nov. 18, 1930, No. 34653. [Class 17 (ii).] Football &c. boots having a studded sole moulded entirely of rubber composition are stiffened at the instep 2 either by increasing the thickness of the material or by reducing the rubber content. The studs 3 are moulded in pairs on a strip base 4, which is either moulded integrally with the sole, or is secured thereto by sewing. Specification 324,098, [Class 17 (ii), Boots and shoes, Construction of], is referred to.
Patent GB-466820-A (GB)
Title: Improvements in and relating to gas blast switches
IPC: H01H33/24
Filed: 1935-12-13
Abstract: 466,820. Gas - blast switches. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 13, 1935, No. 34668. Convention date, Dec. 13, 1934. [Class 38 (v)] In an H.T. gas-blast switch in which a current-break and an isolating-break are connected in series, the breakdown value of the current-break alone, when opened and free of pressure-gas, is such as to stand the potentials arising during, and immediately after, switching-off, and the total breakdown value of the two breaks between the conductors to be separated is such that the resistance to flash-over by lightning and other surges attains a value corresponding to the safety-factor of the associated apparatus. An insulating casing m supported on an insulator o carries a silencer z and fixed contact a with which co-operates the movable contact rod b. Rounded, preferably hemispherical, screens c, d, having rings e, f outside container m and depressions r, s for the contact b, enable the electric field density in the gap, when there is no gas-pressure, to be raised to 5 kV. /cm. and serve as closures of the arc space in the closed position of the switch. The isolator g and rod b are operated by means of insulating rods l through a positive connection with pivoted members k each of which carries a pair of rollers i engaging suitablyshaped cams n on a shaft h. The arrangement is such that the current is always made and broken at a, b, and the rollers i ensure that the members k are positively driven. Another isolator may be provided on the opposite side of insulator o.
Patent GB-191940-A (GB)
Title: Improvements in machines for trimming the soles of boots and shoes
IPC: A43D27/00
Filed: 1921-12-24
Abstract: 191,940. Timson, A. R. Dec. 24, 1921. Trimming.-In a sole-edlge trimming machine of the kind in which a rapidly reciprocating knife co-operates with an aperture in a cutting block so that a shearing cut is given, the edge of the knife and the corresponding edge of the aperture are curved. A knife of the section shown in Fig. 10 is rapidly reciprocated in guides 19 and co-operates with the edge of an aperture 15 in a stationary crease-guide 16 to trim the sole 24. The surplus material is removed in a succession of small chips. The knife is provided with a guard 17 carried by a vertically sliding member 18 normally pulled down by springs, and also carrying a roller. 23 engaging, in use, the outer sole 23.
Patent GB-1319291-A (GB)
Title: Carbon steel spring elements
IPC: C22C38/00
Filed: 1970-07-17
Abstract: 1319291 Steel spring stock CATERPILLAR TRACTOR CO 17 July 1970 [20 Aug 1969] 34719/70 Heading C7A Wire from 0À25-1À875 inch diameter as wire spring stock or leaf spring stock from 0À25-1À25 inch thick consist of a carbon steel comprising:- and Si 0À25-0À45% the balance, apart from impurities, being Fe. Specified impurity contents are 0À6% max. Cu, 0À04% max. P and 0À05% max. S. The spring stock may be oil quenched from 1550‹F-1600‹F and tempered at about 700‹F.
Patent GB-447209-A (GB)
Title: Improved means for interconnecting a plough and tractor
IPC: A01B63/04
Filed: 1934-12-05
Abstract: 447,209. Implements for working land; couplings. CARTER, S., Reliance Works, Billingshurst, Sussex. Dec. 5, 1934, No. 34949. [Class 6 (i)] Means for connecting a plough to a two-wheeled tractor comprises a transverse bar e which is universally jointed to the tractor at one end and at the other end is held at an adjustable height in a bracket f upstanding from and angularly adjustable in the longitudinal direction of the tractor. The plough beam c is provided with a loop c<1> notched to fit on to the bar e and adjustably connected to the bar by an eye-bolt k and a clamping plate l. One end of the bar e is provided with a ball head e<1> held in a recessed block n by a recessed cap n<1> and bolts. The other end is fluted and passes through a slot in the bracket f and through the eye of an adjustable eye bolt g. The bracket f is pivoted about a bolt h and is held in adjusted position by a screw-threaded strut i and nuts i<1>. Struts j<1>, m connect the handle bars b to the tractor and plough beam, respectively. In a modification the ball head e<1> is held between a recessed washer and a recessed shoulder on a screw stem. In another arrangement the ball head e<1> is removably held in a slotted tubular housing by a screw plug. The plough body s is pivoted on the beam c and is adjusted angularly by means of a wedge u and a screw v. A bolt t passes through the beam c and a slotted bracket s<2> on the body s.
Patent GB-191034-A (GB)
Title: Improvements in or relating to the construction of bridges
IPC: E01D11/02
Filed: 1922-12-22
Abstract: 191,034. Strauss, J. B. Dec. 27, 1921, [Convention date]. Bridges.-To increase the span of bridges, two sets of piers 1, 1<a> are provided on each side and on these piers are erected rigid trussed quadrilateral members 2, 3, the parts 3 lying between the piers on each side while the parts 2 overhang the span. The parts 2 are formed of main upwardly and downwardly extending members 2a, 2b, respectively, terminating in common joints at 2<c> which carry the ends of a suspension cable or cables 4. Stiffening trusses 5, 6 are carried by the suspension cable and by the piers, and these trusses are joined by a hinge-pin or an expansion joint 8, 9 between the main piers. These trusses, which carry the roadway and footpath, are also joined to similar parts by the fixed trussed structures. The cables are multistrand and are separated at their ends to form a fan each strand being separately connected to supports 18. The vertical support 14 over each pier has a rocking connection with the pier, and the trussed members are movable on these supports.
Patent GB-492232-A (GB)
Title: Improvements in or relating to centrifugal pumps
IPC: F04D9/02
Filed: 1937-12-17
Abstract: 492,232. Centrifugal pumps. BRADY, JUN., F. E. Dec. 17, 1937, No. 34992. Convention date, Dec. 17, 1936. [Class 110 (i)] A centrifugal pump is primed by deflecting some of the discharged liquid back into the impeller to scavenge the air or gas therein, this air or gas being conducted to the volute of the impeller chamber and thence to the outlet. The suction chamber 24, which forms a priming reservoir, leads through inlet passage 11 to the impeller chamber 13 which has beyond the outlet 12 an inwardly deflecting surface 30 leading to the point 32 of minimum spacing. The chamber 13 recedes from the impeller beyond the point 32 so that the forward end of a space between adjacent blades 18 is in free communication with chamber 13 at the time that the rearward end is receiving some of the liquid deflected by surface 30. The volute extends above the impellerto prevent the return of the scavenged gas. For pumping heavy oils, the discharge pipe 37 may have a byepass 36 to return a small quantity of gasfree oil back to chamber 13.
Patent GB-367056-A (GB)
Title: Improvements in or relating to electron discharge amplification systems
IPC: H03G9/10
Filed: 1930-11-21
Abstract: 367,056. Valve amplifying circuits. HAMMOND, J. H., Hesperus Avenue, Gloucester, Massachusetts, U.S.A. Nov. 21, 1930, No. 35176. Convention date, Nov. 23, 1929. Addition to 366,937. [Classes 40 (iii) and 40 (v).] In an amplifier for gramophone reproduction or the like as described in the parent Speci. fication the means to control the gain in accordance with the intensity and to prevent over. loading are applied to push-pull amplifiers. The Figure shows a three-stage amplifier the bias for the stage 27, 28 of which is controlled by the input of intermediate frequencies to that stage, the low frequencies being removed by small condensers 50, 51 and the high frequencies by the filter 59. The output through filters 64, 65 and rectifiers 61 controls the grid bias of the input stage 25, 26 so as to prevent overloading.
Patent GB-998877-A (GB)
Title: Improvements in or relating to echo sounding systems
IPC: G01S15/14
Filed: 1961-09-29
Abstract: 998,877. Echo sounders. ELECTROACUSTIC G.m.b.H. Sept. 29, 1961 [Nov. 25, 19601, No. 35196/61. Heading H4D. In a compressional wave pulse-type echo sounder a digital pulse counter and a recorder are provided, electronic gate means connects the counter and the recorder with the transmitting and receiving transducers to cause them to respond in accordance with the time interval between transmitted and echo pulses, and pulseresponsive control means connected between the counter and the recorder additionally controls the latter to add to the echogram markings indicative of the position and extent of the distance range measured by the counter. In the embodiment 10 kc/s. oscillations from an oscillator 1 are gated in unit 2 and pulses therefrom are formed in unit 3 and fed to decade counter stages 4... 7; the gating is effected by a pulse from a bi-stable multivibrator 8 which is triggered into the " gate open " state by the pulse from the transmitter 21, and such state is ended by a strong echo signal, normally that from the sea bed, from receiver-amplifier 24. Gate circuits 9 and 12 are included such that only one is opened at any one time; simultaneously with the beginning of counting the state of a bi-stable multivibrator 10 is changed by multivibrator 8 such that gate 9 is closed and gate 12 opened thereby preventing premature repetition of counting by any electrical disturbance from the transmitting transducer. To avoid continued counting if no echo pulse is received an astable multivibrator 14 is provided. Sensitivity of multivibrator 8 is adjustable by manual control of a pulse shaper 13. Arrangements, including mono-stable multivibrators 15 and 16, are provided whereby sea bed depth measurement is not vitiated by echoes from shoals of fish. To cater for differing velocities of sound the frequency of oscillator 1 is adjustable. The counter pulses are recorded to give a scale 29 and to compensate for possible obscuration of the sea bed trace 31 when nearly horizontal a mono-stable multivibrator 17, having a period adjustable by control 17a, is provided so as to give a repeated indication of sea bed profile 32 below that afforded by the sea bed echoes; the period may be made such that the distance between the two profiles corresponds to the depth of the transducers below the surface of the sea. The record afforded provides immediate notice that the pulse counter has been prematurely stopped by a strong fish echo, e.g. at location 33. Each counter measurement may be automatically recorded with clock time. With switch 35 in position b the counter permits measurement of the distance between two reflectors. Syncronized subsidiary recorders or cathode-ray tubes may be connected to the parent recorder, each subsidiary device exhibiting a continuously or incrementally displaceable and magnified partial range. The recording of lines 29 is controllable by switches 36, 37, 38.
Patent GB-967998-A (GB)
Title: Improvements relating to cartons made of foldable sheet material
IPC: B65D5/06
Filed: 1960-10-14
Abstract: 967,998. Packaging; lined cartons. BOFORS A.B. Oct.14, 1960 [Nov. 7, 1959], No. 35283/60. Headings B8C and B8P.  A paper or the like carton, of the type formed by folding a sheet to form a prismatic tube and sealing it at its ends, has side walls which terminate along each longitudinal edge in a flat outwardly protruding flange of double thickness material one of the flanges being formed by free longitudinal edge portions, sealed together. The sheet material is preferably a long web of plastics coated paper, on which successive carton blank scoring lines are formed, the web being folded into a rectangular tube and filled with the material to be packed prior to trans. verse folding, sealing and cutting. The form of construction used provides four flat side walls which can readily carry print. Fig. 3 shows a portion of the web, the material for forming a single carton lying between the lines 24. The panels 8, 8<SP>1</SP> form the top and 9, 9<SP>1</SP> the bottom closures.