baber/WOPTO huggingface dataset:
Patent GB-672141-A (GB)
Title: Improvements in or relating to electric arc welding systems
IPC: B23K9/067
Filed: 1949-03-25
Abstract: 672,141. Supply systems for welding arcs. IGRANIC ELECTRIC CO., Ltd. March 25, 1949 [March 27, 1948], No. 8189/49. Class 38 (iv). A welding arc is supplied through an ignitron, or the like, triggered by a voltage or current pulse which also causes simultaneous ionization of the welding gap. As shown in Fig. 1, the source of welding energy is a charged condenser 10 connected to the work 13 and spaced welding electrode 11 through an ignitron 14. Simultaneous ionization of the welding gap 12 and of the filling of the ignitron is effected by closure of a weld-initiating switch 15, which connects in series with an ionizing voltage source 16 the gap 12 and the discharge space between the cathode and voltageresponsive ignition electrode 14c of the ignitron. When the ignition electrode is of the currentresponsive type, voltage source 16 is replaced by a current source and the voltage necessary to ionize gap 12 is obtained from a current transformer having its primary winding connected in the ignition circuit. In the A.C. operated system shown in Fig. 4, which permits continuous welding, so long as switch 30 is closed, the arc is supplied from mains 20, 21 through ignitron 24 having a current responsive igniter electrode 24c, igniting current being supplied by a condenser 37 cyclically charged over transformer 23 and rectifier 29 (when switch 30 is closed) and cyclically discharged, under the control of a thyratron 32, through the igniter circuit which also includes a current transformer 17 for supplying ionizing voltage to the arc gap 12. The firing of thyratron 32 is governed by a phase shifter 35, 36 energized from transformer 23 and feeding a peaking transformer 33 providing a fixing voltage effective to overcome a D.C. hold-off bias voltage supplied to the control grid of the thyratron over rectifier 34 and condenser 38. A similar system for use with an ignitron having a voltage-responsive igniter is also described. Specification 656,641, [Group XL (a)], is referred to.
Patent GB-363917-A (GB)
Title: Improvements in ornamental holders for personal wear
IPC: A45F5/08
Filed: 1931-03-17
Abstract: 363,917. Attaching flowers &c. to wearing-apparel; safety-pins &c. WILLINS, L., 50, Onslow Gardens, South Kensington, and ANDRADE, I., 333, Goldhawk Road, Hammersmith, both in London. March 17, 1931, No. 8246. [Class 43.] In ornamental holders for personal wear of that type comprising the combination with brooch or safety-pin parts A, B of a further spring gripping member disposed at the front of the brooch or safety-pin to co-operate therewith for gripping flowers, a handkerchief or the like, two springy members C, E are secured to the rigid front bar A of the brooch or pin. The springy members may be of steel and may be hinged together or connected as at D and a hole on the member E is adapted to be engaged by a catch F. One or both of the members C, E may be corrugated. Where the article held is sufficiently thick, the springiness of the members C, E is such that they may take up curves opposite to that shown on the drawing.
Patent GB-1379754-A (GB)
Title: Methods and compositions for treating plants susceptible to  fungal attack
IPC: C07D277/36
Filed: 1971-03-30
Abstract: 1379754 Nitrothiazole compounds LILLY INDUSTRIES Ltd 28 March 1972 [30 March 1971] 8254/71 Heading C2C [Also in Division A5] Novel compounds of general formula where X is sulphur or sulphonyl and R<SP>6</SP> is (i) thiazolin-2-yl optionally substituted by C 1-4  alkyl, phenyl, trifluoromethyl or nitro; (ii) thiazol-2-yl substituted by C 1-4  alkyl, phenyl or trifluoromethyl; or additionally when X is sulphonyl, (iii) thiazol-2-yl optionally substituted by NO 2 , may be prepared by reacting a 2-halo-5-nitrothiazole with a compound HSR<SP>6</SP> or salt thereof, under basic conditions; and if desired the resultant sulphide is oxidized to the sulphone. The novel compounds exhibit fungicidal properties.
Patent GB-1018233-A (GB)
Title: Concrete mixers of the open pan type
Inventor: PULLIN CYRIL GEORGE
IPC: B01F7/16
Filed: 1963-03-01
Abstract: 1,018,233. Concrete mixers. WINGET Ltd. Feb. 28, 1964 [March 1, 1963], No. 8282/63. Heading B1C. In a stationary open pan concrete mixer comprising an annular mixing chamber which contains mixing blades and a plough each removably fastened on a corresponding arm 12 resiliently mounted on a rotor 1, Fig. 1 (not shown), the arms are mounted on shafts 11 in turn bonded by rubber or rubber compounds to brackets 7, 8 rigidly fixed to the rotor. Adjustable stops 14, 15 on each bracket 7 and arm 12 respectively limit upward and downward movement of the arms. The mixing blades are rhomboidal in shape, the edge adjacent the pan floor being chamfered, Figs. 6 and 7 (not shown). The limbs 6A, 6B of the plough, Fig. 8 (not shown), are preferably at 105 degrees to each other and the apex 6C is in the direction of rotation of the rotor.
Patent GB-897528-A (GB)
Title: Light sensitive device
Inventor: KOSTELEC JOZE
IPC: H01L51/00
Filed: 1960-03-09
Abstract: 897,528. Semi-conductor devices. GENERAL ANILINE & FILM CORPORATION. March 9, 1960 [March 12, 1959], No. 8330/60. Class 37. [Also in Group XL (a)] A photo-voltaic cell consists of a layer of a light-sensitive electrophotographic sensitizing dye having on each side an electrically-conducting support. Fig. 1 shows two glass plates 1, 1a, each having a transparent conductive coating 2, 2a. A sensitizing dye such as rose bengal dissolved in methanol was poured on to the conducting surface. After the solvent had evaporated the two layers 3, 3a were pressed firmly together as shown. Connections 5, 6 were made to the overhanging portions. An opaque backing may be used on one side (Fig. 3, not shown), or the glass plates may be brought together while still moist with solvent. An arrangement is described (Fig. 4, not shown), in which an A.C. supply causes an electroluminescent panel to luminesce. The luminescent illuminating a cell of the type described above which provides a D.C. output. Suitable dyes are the phthalein dyes, i.e. eosin, rose bengal, fluorescein, erythrosin and other fluorescein types and tryphenylmethane types such as crystal violet and malachite green.
Patent GB-654644-A (GB)
Title: Improvements in high frequency electric discharge devices
IPC: H01J21/06
Filed: 1947-03-27
Abstract: 654,644. Valve amplifying circuits. BRITISH THOMSON-HOUSTON CO., Ltd. March 27, 1947, No. 8347. Convention date, March 27, 1946. [Class 40 (vi)] [Also in Group XL (a)] An amplifier circuit comprises a thermionic valve in which the anode and control grid leads 8, 7, Fig. 4, are brought out through opposite ends of the envelope and the cathode 14 and additional grids 18, 19 are capacitively coupled to one another and to the metal envelope portion 102 by insulating rings inside the envelope. Oscillatory input and output are led in and taken off by tuned transformers 31, 36 coupled between the control grid and cathode, and anode and cathode, respectively. The D.C. anode and control grid supply leads 40, 35 are capacitively coupled to the metal envelope at 39, 34, and the chassis 41 on which the device is mounted shields the D.C. and H.F. circuits from one another. The arrangement may be used as one stage of a cascaded amplifier. The input and output circuits may be concentric lines.
Patent GB-416930-A (GB)
Title: Process for the manufacture of phenols from alkali arylsulphonates
IPC: C07C37/055
Filed: 1933-03-20
Abstract: Phenols are prepared by passing a current of steam which carries away the phenol formed through a fused mixture of one molecular proportion of an alkali arylsulphonate and two or more molecular proportions of a phenate, maintained throughout the whole operation between 280--370 DEG C. until all the arylsulphonate has been transformed.  The excess phenate keeps the reaction mass fluid during the operation and permits an easy distillation of the phenol using a smaller amount of steam.  The sulphonate can be added in small portions to the molten phenate while steam passes through, or steam is passed through a mixture of the molten materials introduced separately or in admixture into the reaction vessel ; excess phenate containing some phenol, after suitable conversion to pure phenate using soluble alkali salts, may be used for a further fusion mixture.  In examples: (1) sodium benzene sulphonate is gradually added to molten phenate maintained at 360--380 DEG  C. while stirring and passing a current of steam through the mass until 1 molar proportion of sulphonate to 2--2,5 molar proportions of phenate is present in the mix, and the heating with passage of a current of steam continued for a further two hours. The residue is freed from sulphite by washing and, if desired, further purified by acidulation, followed by treatment with a sodium salt and lime to give pure phenate; the phenol distilled over corresponds to 92 per cent of the sulphonate; (2) a similar mixture to (1) above is heated to 365 DEG  C. and dry steam superheated to 360--380 DEG  C. is passed through the mass until the amount of phenol carried over falls rapidly.  Reaction can be effected with a continuous countercurrent of reactants and steam using a series of reaction vessels or a single elongated reaction vessel; (3) a mixture of 2,5 molar proportion of phenate and 1 molar proportion of sodium toluene sulphonate is heated to 370 DEG  C. and steam superheated to 360--380 DEG  C. passed through the mass; phenol and cresol are carried over and separated in known manner. The term "phenols" covers phenolic bodies generally, cresols xylenols and naphthols also being referred to.
Patent GB-718139-A (GB)
Title: Improvements in or relating to bladed rotors for fluid-flow machines
Inventor: PERRY SYDNEY WILLIAM HENRY
IPC: F01D5/30
Filed: 1952-04-02
Abstract: 718,139. Turbine and compressor rotors. POWER JETS (RESEARCH & DEVELOPMENT), Ltd. March 25, 1953 [April 2, 1952], No. 8469/52. Class 110(3) A bladed rotor for axial-flow compressors or turbines comprises at least one sheet metal rotor disc, and a row of blades formed of lengths of bar material of appropriate aerofoil cross-section mounted at the periphery thereof each blade being secured at its root end to a bracket which is itself secured to the rotor disc. Each rotor element in the embodiment shown comprises two discs la, 1b formed with radial slots at the periphery. The blades 3 have two channel-section brackets 4a, 4b secured by rivets or by welding or brazing at the root end, and the sides 4b of the brackets are secured by rivets to the rotor discs, the root portions of the blades entering the radial slots in the rotor discs. The surface of the rotor between adjacent blades in a row is completed by platforms 5 having lugs 5a riveted to the rotor discs. The surface of the rotor between blade rows is formed by sheet metal spacer rings 6. The rotor discs are mounted on tubes 9 carrying tubular distance pieces 10 between the rotor discs. The blade platforms and spacer rings could be omitted and the rotor surface formed by a single sheet metal cylinder enveloping the rotor discs and formed with holes through which the blades project.
Patent GB-1058481-A (GB)
Title: Improvements in demountable storage units
IPC: A47B43/00
Filed: 1964-02-28
Abstract: 1,058,481. Folding cabinets. LINCRUSTA. Feb. 28, 1964 [Feb. 28, 1963], No. 8534/64. Heading A4B. A storage unit comprises a drawer slidably mounted in a cardboard case 1 which can be folded flat and is held rigid, when assembled, by lengths of channelling 7, 8, 9, 10 permanently fixed to the edges of one opening of the case, stiffening wires 11, 12 being seated in channels in the channelling 7 and 9. The wires have bent ends- 11a, 11b and 12a, 12b in alignment with the channelling 8 and 10, and resilient flanged locking clips 13 and 14 fit over the channelling 8 and 10 and the ends of the stiffening wires 11, 12. Outer flanges 13a of the clips 13 and 14 have lips 13c bent inwards at an angle of less than 90 degrees which extend beyond a second lip 13d on the inner flange 13b, which is bent at substantially 90 degrees. The oblique gap thus defined between the edges of the lips 13c, 13d is substantially equal in width to the thickness of the stiffening wires 11, 12 and channelling 8 and 10 which are to be gripped. Lips 13d lock against the channel 8 or 10 unaided but to enable lips 13c to lock against the channel punched catches 10a are formed in the channel which engage with cut-outs 13g formed in the flange 13a. The inner and outer flanges 13b, 13a each have unlipped portions 13j, 13i to facilitate insertion of an expander tool to enable the clip to be removed.
Patent GB-199785-A (GB)
Title: Improved method of constructing an electric accumulator
IPC: H01M10/16
Filed: 1922-03-24
Abstract: 199,785. Culley, A. H., and Mott, L. March 24, 1922. Supports for electrodes; cells.-Storage battery electrodes are held rigidly within the container by means of members c which engage in slots b in the container and against which the bridge pieces h of the electrodes are pressed by nuts g on the terminal lugs. A screwed sleeve d and washer f are mounted on the lug a, the washer f pressing against the underside of the cover e which is provided with a packing ring f<1>. In a modification a rubber sleeve f<2> is pressed against the member c by a collar d<1> projecting from the cover.
Patent GB-1430792-A (GB)
Title: Filtering apparatus with pneumatic intermittent cleaning
IPC: B01D46/04
Filed: 1973-02-21
Abstract: 1430792 Gas filter TORIT CORP 21 Feb 1973 [8 Dec 1972] 8563/73 Heading BIT A gas filter comprises open-ended filter sleeves extending between tube plates 20, 30 and extending between tube plates 20, 30 and arranged for outward flow filtering, and the sleeves are cleaned, during periods when filtered gas fan 100 is off, by delivering compressed air from chamber 120 through valve 140 to a grid of pipes 101 (Fig. 4, not shown) having nozzles (107) directed downwards and located in the centre of each set of four sleeves. A single blast of air thus delivered to the downstream sides of the sleeves shakes them and causes some reverse flow. Dust falls from the sleeves to chamber 50 and is discharged through valve 52. The sleeves may be of felted synthetic fibres backed by woven fabric outside. Pump 160 or a supply valve maintain 60 p.s.i. in chamber 120, and timer 190 opens valve 140 when fan 100 is stopped, preventing pump 160 from starting until valve 140 is closed again. The pipes of grid 101 are of various diameters so that all nozzles (107) receive equal flows.
Patent GB-902589-A (GB)
Title: Production of hexafluoropropene and heptafluoropropane
IPC: C07C17/087
Filed: 1961-03-09
Abstract: Hexafluoropropene, with or without substantial amounts of 1,1,1,2,3,3,3-heptafluoropropane, is prepared by reaction of 3-chloropentafluoropropene-1 and substantially anhydrous HF in the gas phase at a temperature of up to 450 DEG C. in the presence of an activated carbon catalyst.  The process may be continuous. Preferred conditions are temperatures of 150-450 DEG C. and a molar ratio of HF to CF2ClCF = CF2 of 1 : 1 to 4 : 1.  To obtain maximum yields of CF3CF = CF2 the temperature should be 175-250 DEG C., with a molar ratio of HF to CF2ClCF = CF2 of 1.5 : 1 to 3 : 1.  Other products obtained in the examples, in addition to CF3CF = CF2 and CF3CHFCF3, are CF3CF = CFCl (b7 allylic rearrangement of the starting material), CF3CHFCF2Cl, and a product of empirical formula C3HCl2F5.
Patent GB-766427-A (GB)
Title: Phenyl-ethyl-acetyl choline chloride and its process of preparation
Filed: 1955-03-25
Abstract: The invention comprises phenyl-ethyl-acetyl choline chloride of the formula <FORM:0766427/IV(b)/1> and its preparation by treating choline chloride with a phenyl-ethyl-acetyl halide such as phenyl-ethyl-acetyl chloride under anhydrous conditions preferably at an elevated temperature of for example 150 DEG  C.  An example is given.
Patent GB-829347-A (GB)
Title: Improvements in or relating to hydraulic power lift control means for tractors
Inventor: MARINDIN ROBERT
IPC: B62D49/06
Filed: 1957-03-18
Abstract: 829,347. Tractor power-lift mechanisms.' INTERNATIONAL HARVESTER CO. OF GREAT BRITAIN Ltd. Jan. 22, 1958 [March 18, 1957], No. 8799/57. Class 79(1) A selector valve 6, Fig. 1, in a tractor power-lift system provides for the connection of a draft-responsive relief valve 16 providing draft-responsive load transfer. The valve 6 is slidable in a bore 3 and in the position for lowering (shown) hydraulic fluid supplied from a pump to a passage 2 is connected to pass freely to return passages 4, 5 communciating with a reservoir. For lifting, the valve is moved so that the passage 2 communicates with passages 7, 10 leading to the lifting ram cylinder 9. When the linkage is fully raised to transport position the pressure fluid passes to the return passages 4, 5 through a relief valve 33. For draft-responsive control the valve 6 is moved so that pressure fluid passes to the ram 9 and also to a passage 8 connected to the draft-responsive relief valve 16 which reduces the supply pressure in accordance with loads on a member 22 connected to the upper link of the three-point linkage. For depth limiting, the valve 6 is moved against a spring 34 to open a passage 26 leading to a follow-up valve 31 actuated according to the position of the lift arms 15 from an arm 27 on the cross-shaft 14. Variable settings are made for both draftresponsive and depth setting control by hand levers 18, Fig. 2, connected to points 24, 30 on the linkages 20, 28 operating the valves 16, 31.
Patent GB-207775-A (GB)
Title: Improvements in boats of the inverted v-bottom type
IPC: B63B1/20
Filed: 1923-03-28
Abstract: 207,775. Hickman, W. A. Dec. 2, 1922, [Convention date]. Rudders.-In hydroplane vessels having inverted V-shaped bottoms, the twin rudders 24 arranged approximately on the. continuation of the chine lines are operated simultaneously by rack gear 21, 22 and are pivoted in inclined planes which intersect above the hull.
Patent GB-1196985-A (GB)
Title: Pneumatically Operable Servo-Device
IPC: B60T13/567
Filed: 1968-02-23
Abstract: 1,196,985. Pneumatic brakes; piston packing. ERNST HEINKEL A.G. 23 Feb., 1968 [9 March, 1967], No. 8863/68. Headings F2F and F2T. In the cylinder 11 of a pneumatic servomotor, the bead 51 of a diaphragm 52 is sealingly secured between the edge of the cover plate 2, the facing edge region of the cylinder 11 and a ring 6 fixed within the cylinder, the bead having the same diameter as the cylinder portion on which the diaphragm rolls and unrolls in use, and the said edge region of the cylinder having a diameter which is no greater than this portion. The ring 6 may be secured to the cover-plate 2, or by a seam weld (7, Fig. 3, not shown) to the cylinder 11. The cylinder and plate are secured by tags (12, Fig. 2, not shown) which are spaced around the circumference of the cylinder end, and which locate in corresponding recesses in the plate 2 and are then bent over.
Patent GB-558327-A (GB)
Title: Improvements in and relating to boiler furnaces
IPC: F23H17/12
Filed: 1942-06-27
Abstract: 558,327. Firegrates. VICKERS, J. June 27, 1942, No. 8883. [Class 51 (i)] In firebars of the kind having projections 2 and recesses 3 on one side arranged opposite to recesses 3 and projections 2 on the other side so that the projections on one bar engage with the recesses on an adjacent bar, the bars are spaced the required distance apart by making the endmost projections 2 and, if desired, one or more intermediate projections longer than the remaining projections. The bars may be arranged longitudinally or transversely of the furnace and as shown in Fig. 2 are curved as described in Specification 558,326. The bars are provided with slots 6 and webs 9 to engage respectively with rounded and flat bearers 7, 8.
Patent GB-513062-A (GB)
Title: Improvements in or relating to brackets for supporting shelves and other fitments
IPC: A47B57/04
Filed: 1938-03-23
Abstract: 513,062. Brackets. JONES, C. B. March 23, 1938, No. 8885. [Class 52 (v)] A shelf supporting arm 9 has a shoulder 11 which engages behind the wall of a slotted upright 8, the arm being held at the desired inclination by a pivoted strut 10 which engages one of the slots 12 in the upright. The arm may be provided with lateral extensions which abut against the front face of the upright to ensure lateral stability. The arm may have lateral extensions, or two-part screwed pegs, upon which the shelf rests.
Patent GB-107250-A (GB)
Title: Improvements in Eyeglass Mountings.
Inventor: PRESCOTT GEORGE
IPC: G02C5/12
Filed: 1916-06-26
Abstract: 107,250. Prescott, G. June 26, 1916. Eyeglasses.-An eyeglass mount g has a pair of levers b pivoted thereon each carrying pivoted placquets d on their downwardly extending arms, the axes of the pivots c, e being parallel: the upper arms a of the levers project upwards and outwards and serve as finger pieces, and springs coiled round the lever pivots press the placquets on to the nose. The pivot axes may be normal to the plane of the lenses or at an angle of 15 degrees or less to the normal. Specification 24590/07 is referred to.
Patent GB-268811-A (GB)
Title: An automatic quick make and quick break electric switch operated by means of an organ moving backwards and forwards
IPC: H01H5/04
Filed: 1927-03-31
Abstract: 268,811. Jerike, J. March 31, 1927. [A Specification was laid open to inspection under Sect. 91 of the Acts, April 4, 1927.] Switches, quick-action, have a reciprocating member s acted on by a spring f<1> which keeps a pin n' in contact with a plate q<1>, as the member moves to the right, until the pin passes off the plate and drops against a further spring f', which forces it upwards during the backward stroke when it has again cleared the plate. In this way a quick make-and-break between contacts c and d is obtained at every reciprocation. In a modification the member carries a lug engaging a pivoted spring pressed pawl member but the principle of actuation remains the same.
Patent GB-329086-A (GB)
Title: Improvements in locks for vehicle doors
IPC: E05B65/22
Filed: 1929-03-20
Abstract: 329,086. Turner, J., and Wood, W. G., (trading as Woodville Lock Co.). March 20, 1929. Latches, sliding; striking-plates.-In a vehicle door of the kind comprising an attachment plate a having a lever c pivoted thereto about the axis of an external handle, said lever being adapted to operate a spring-controlled slidable bolt f and to co-operate with a safety catch h mounted on the attachment plate, the safety catch is provided with a peg i which extends through the back or exterior of the lock casing and is angularly shaped at i<2> to receive the shaped portion of an operating lever j, this lever being located within the area of the main exterior body of the lock casing. The safety catch is engaged at one end by a spring, and its part h<3> is adapted to engage a notch c<3> of the lever c. The lever c is pivotally mounted by its connection with a circular washer l in a hole m in the attachment plate a. The bolt f engages a striking plate formed with a number of steps P, l<3> and l<4>.