baber/WOPTO huggingface dataset:
Patent GB-572692-A (GB)
Title: Improvements in or relating to high frequency heating systems
IPC: H05B6/04
Filed: 1943-11-13
Abstract: 572,692. Supply systems for highfrequency heating. CAMPBELL, D. F., KING, S. G., and ELECTRIC FURNACE CO., Ltd. Nov. 13, 1943, No. 18917. [Classes 38 (ii) and 38 (iv)] A number of independent vacuum tube oscillators, each supplying a high-frequency induction heating load, are energized by a single power unit which takes in power at mains supply voltage and converts it into the high voltage A.C. or D.C. power required by the anode circuits of the oscillators. The power unit may also include a step-down transformer for providing a low-tension supply for the cathodes of the tubes. Alternatively, where the oscillator anodes are fed with raw A.C., the low-tension supply may be obtained by step-down transformers at each oscillator. High-frequency filters are preferably provided where the high- and low-tension supply leads enter the oscillators. The power unit may supply a ring main into which the oscillators may be " plugged." Fig. 1 shows oscillators S connected to high-tension D.C. lines L<1>, M<1> energized from three-phase mains A by stepup transformers D, and three-phase Graetze rectifiers E, F, transformer D being supplied through a voltage regulating transformer B controlled, if desired, by a voltage responsive device W. Transformers H, K supply heating current for the cathodes of the rectifiers and a thermal device J energized by transformer H and controlling contactor C between transformers B, D, delays application of voltage to the anodes of the rectifiers until their cathodes have become heated.
Patent GB-1156237-A (GB)
Title: Enzyme-Containing Washing Products
IPC: C11D3/386
Filed: 1967-04-25
Abstract: 1,156,237. Enzyme-containing detergents. PROCTER & GAMBLE CO. 25 April, 1967 [25 April, 1966(2); 24 Aug., 1966; 6 March, 1967], No. 18926/67. Heading C5D. [Also in Division D1] A washing agent comprises, by weight of the product (a) from 0.005% to 4% of active protease containing no sulphydryl or disulphide linkages and which is active in the pH range from 7 to 11, (b) from 5% to 50% of an inorganic peroxy salt, and (c) from 46% to 95% of a mixture of alkaline builder salt and organic detergent in a weight ratio of builder salt to organic detergent of from 1 : 4 to 30 : 1. Suitable peroxy compounds include sodium potassium, ammonium and lithium percarbonates, persulphates and perborates. A wide range of surface active agents may be used as organic detergent and the builder salt may be of the organic and/or inorganic types and sodium sulphate is included as a builder. The usual property enhancing additives may also be included in the compositions.
Patent GB-1368034-A (GB)
Title: Plate heat exchangers
IPC: F28F13/12
Filed: 1972-04-24
Abstract: 1368034 Plate heat exchangers APV CO Ltd 13 April 1973 [24 April 1972] 18950/72 Heading F4S A heat exchanger comprises a stack of spacedapart plates 1 (e.g. of thin metal, plastics or rubber) defining between each adjacent pair of plates a flow space in which are a plurality of parallel blocking elements (e.g. rods or bars) 2 bridging and blocking the flow space in the flat condition of the plates (Fig. 1), the blocking elements in adjacent flow spaces being relatively staggered to permit flexing of the plates under operating conditions. The pitch Y of the elements 2 may be such as to produce eddies in the fluids and one or both fluids may be subjected to flow or pressure pulsations so that the plates flex between the two extreme positions shown respectively in Figs. 4a and 4b and effect a pumping action on the fluids. The ends of the elements 2 may be embedded in marginal gaskets 3 which separate adjacent plates. When plastics or rubber plates are utilized, these may include moulded-in gaskets supported by moulded-in stiffening struts (7, Fig. 5) of metal, glass fibre, reinforced plastics material, or carbon fibre.
Patent GB-354394-A (GB)
Title: Improved manufacture of plastic substances
IPC: C08G75/16
Filed: 1930-05-02
Abstract: Polysulphides containing a desired sulphur content are prepared by reacting the metallic hydroxide, e.g. sodium hydroxide with the necessary quantity of sulphur according to the equation 6NaOH+(2x+2)S=Na2S2O3 + 2(Na2Sx) + 3H2O.  The sulphide Na2S2.2 is specified.  Polysulphides of the alkali and alkaline-earth metals including potassium, ammonium, calcium, and barium are also specified.  Specifications 302,270, [Class 2 (iii), Dyes &c.], and 354,310 are referred to.ALSO:Olefine polysulphide plastics are made by heating an olefine halogen additive compound and a polysulphide in aqueous solution in the presence of a finely divided oxide, hydroxide or carbonate of an alkaline-earth metal including magnesium with or without the addition of a liquid capable of increasing the solubility of the olefine compound in the aqueous polysulphide solution, e.g. alcohol.  The polysulphide solution may be prepared by reacting the metallic hydroxide, e.g. sodium hydroxide, with the necessary quantity of sulphur according to the equation 6NaOH + (2x + 2) S --> Na2S2O3 + 2(Na2Sx) + 3H2O. In an example a hard product is obtained by adding ethylene dichloride to a heated solution of a polysulphide of the formula Na2S2,2 containing freshly slaked lime and alcohol. The powdered product which moulds readily when heated from 250 to 280 DEG  F. (pressure required even at 300-325 DEG  F.) may be compounded with mineral pigments, e.g. iron oxides, Prussian blue, chrome green, aluminium or bronze powder.  Fillers such as wood flour, magnesium carbonate, whiting, carbon black, rubber dyes and lakes may be incorporated.  Specifications 302,270, [Class 2 (iii), Dyes &c.], and 354,310, are referred to.ALSO:An olefine polysulphide plastic (obtained by reaction with an olefine halogen additive compound and a polysulphide in aqueous solution in the presence of a finely-divided oxide, hydroxide, or carbonate of an alkaline earth metal, with or without a solvent, e.g. alcohol) is compounded with mineral pigments, e.g. iron oxide pigments, Prussian blue, chrome green, aluminium, or bronze powder.  Fillers such as wood flour, magnesium carbonate, whiting, carbon black, rubber dyes, and insoluble lakes may also be incorporated.  The product from ethylene dichloride, a sodium polysulphide of the formula Na2S2,2, slaked lime, and alcohol moulds readily when heated to 250-280 DEG  F.  Some pressure is required since, even at 300-325 DEG  F., the mass does not become highly fluid.  Specifications 302,270, [Class 70, Indiarubber &c.], and 354,310, are referred to.
Patent GB-278128-A (GB)
Title: Improvements in and connected with perambulators
IPC: B62B9/18
Filed: 1926-08-03
Abstract: 278,128. Pirie, A., and Third, W. Aug. 3,1926. Springs, arrangement of.-The body of a perambulator is supported on resilient brackets F. one on each side thereof, which are pivoted at I to the inner ends of the arms of links E, U- shaped in plan, the outer ends of the arms being pivoted to brackets D on the frame A carrying the axles B. The transverse members of the links are connected by spiral or other springs G.
Patent GB-774350-A (GB)
Title: Gangsaw machine for cutting stone
IPC: B28D1/06
Filed: 1955-07-04
Abstract: 774,350. Stone sawing. BRIAR HILL STONE CO. July 4, 1955 [Dec. 20, 1954], No. 19234/55. Class 124 A gang saw for cutting stone comprises four upright corner posts connected by an upper frame, a vertically movable frame, slidable on the posts, supporting spaced shafts carrying gears on the opposite ends thereof, a motor on each side of the movable frame operatively connected to theends of the shafts, and a gang saw frame carrying aplurality of saw blades, supported on eccentrics mounted on the shafts, means being provided forpositioning a block of stone beneath the saw frame and feeding the saws downwardly. As shown, four corner posts 10 are connected by girders 24 forming a top frame, and have a movable frame composed of beams 30 and shafts 35, the saw frame being raised and lowered by rotating rods having threads 58 and driven through gearing by motors mounted on the top frame, the gearing being such that the speed of raising is fast and that of lowering slow. Suspended from the shafts 35, by means of pillow blocks 55 housing eccentrics, is a gang saw frame composed of girders 44, 45 carrying a plurality of . saw blades 43. Motors 38 mounted on opposite sides of the movable frame rotate the shafts 35 through gearing 39, 40, 37 and produce through the action of the eccentrics, a circular motion of the saw blades causing them to cut only on the downward and forward movement. Shims 57 placed below the pillow block 55 on the forward end of the saw, tilt the saw downwardly so that cuttings and washing liquid may be removed by way of a trough 15, below a trolley 20 on which the stone 5 is mounted, and a channel 16 leading, to a sludge tank 17.
Patent GB-530748-A (GB)
Title: Improvements in means for transferring bottles or like containers from one conveyer to another
IPC: B65G47/68
Filed: 1939-07-01
Abstract: 530,748. Conveyers. BARNETT& FOSTER, Ltd., and RAYMOND, C. W. July 1, 1939, No. 19241. [Class 78 (i)] For transferring bottles or like articles from two simultaneously-acting side conveyers 6 on to a central conveyer 3 or vice versa, the bottles pass between guides 7 on to rotary tables 4 rotating in opposite directions. One table, through the crank-and-connecting-rod mechanism 12, imparts oscillation to the disc 8 so that the recess 9 in its periphery registers with a bottle from each conveyer 6 in turn and allows it to pass to the conveyer 3 during the succeeding swing of the disc. The recessed disc may consist of two similar recessed plates at different levels. A slipping clutch is embodied in the driving-gear to stop the movement of the disc and tables in the event of the bottles jamming on the conveyers.
Patent GB-1446697-A (GB)
Title: Incandescent electric lamp
IPC: H01K1/50
Filed: 1974-05-02
Abstract: 1446697 Electric incandescent lamps PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 2 May 1974 [5 May 1973] 19311/74 Heading H1F A gas-filled tungsten-halogen incandescent lamp having a cylindrical envelope, an axially arranged tungsten filament and a filler gas consisting mainly of argon, krypton or xenon with optionally nitrogen and hydrogen is characterized in that the filling pressure P 0  at room temperature is more than one atmosphere and the internal diameter dint. of the envelope is less than 3À5 mm. and satisfies the condition that: wherein: T F  = operating temperature of filament (K.); T B  = operating temperature of envelope wall (K.); a = diameter of filament (cm); P O  = filling pressure at room temperature (atm.) and A, α, #, γ and 8 are constants which depend on the particular filler gas chosen and the values of which have been determined experimentally and are tabulated in the Specification. The filament may be a straight wire, a coil or a coiled coil.
Patent GB-1489137-A (GB)
Title: Additive for cement slurries and rinsing slurries for deep bores
IPC: C09K8/487
Filed: 1975-05-08
Abstract: 1489137 Cement slurry additives OCCIDENTAL OEL GmbH 8 May 1975 19312/75 Heading ClH [Also in Division E1] An additive for cement slurries and rinsing slurries for deep bores comprises distillation residues from crude oils, residues of deasphaltizing by solvents of distillation residues, or mixtures thereof, which are subjected to an oxidation process and standardized as regards a softening point according to the ring and ball method of at least 135‹ C., a density at 25‹ C. of 1À07 at the maximum and a penetration at 25‹ C. of 4 at the maximum, and are then subjected to a crushing operation to achieve a graduated grain size. The oxidation may be effected by blowing with air at approximately 300‹ C. after which the product is blown cold and subjected to grinding to a maximum grain size of 2 mm. High nolecular weight paraffins may be added in proportions of 5-50% by weight to the residues prior to the oxidation process.
Patent GB-1441203-A (GB)
Title: Heat transfer printing
IPC: D06P5/00
Filed: 1974-05-02
Abstract: 1441203 Transfer dyeing and printing of cellulose HEBERLEIN & CO AG 2 May 1974 [21 May 1973] 19375/74 Heading D1B Textile materials comprising cellulose fibres are partially esterified or etherified before being heat transfer dyed or printed with a disperse dye. The chemical modification may be esterification or etherification e.g. acetylation, allylation and cyanoethylation. Bifunctional modifying agents may be employed e.g. asymmetrical di- or poly-vinylsulphones and cyanuric chloride. Fabrics which have been partially esterified may be treated with dilute alkali metal hydroxide before dyeing or printing to reduce the degree of esterification. Blends of polyester and cellulose may be treated by the process of invention.
Patent GB-139145-A (GB)
Title: Improved manufacture of embroidery
IPC: D05C17/00
Filed: 1919-08-06
Abstract: 139,145. Hauser, B. Feb. 18, 1919, [Convention date]. Addition to 135,462. Void [Published under Sect. 91 of the Act]. Drawings to Specification. Embroidery.-Embroidery patterns of the kind described in the parent Specification may be embellished by the addition of other pattern elements produced in an embroidery machine with a full rank of needles or one needle only to each complete repeat.
Patent GB-373826-A (GB)
Title: Improvements in or relating to carpet clips or holders
IPC: A47G27/06
Filed: 1931-07-07
Abstract: 373,826. Stair - carpet fastenings. SMITH & DAVIS, Ltd. and SMITH, H. F., Beacon Works, Hampton Street, Birming- ham. July 7, 1931, No. 19519. [Class 52 (v).] A carpet holder comprises two substantially parallel arms adapted to receive the edge of the carpet therebetween one arm 8 being adapted for sliding engagement with a bracket 1 mounted on the carpet support. The bracket has two mounting flanges 3, 4, a centre portion 2, and parts 5, 6 substantially at rightangles to the flanges 3, 4 and the portion 2 for guiding the engaging arm 8 of the slide. The slide 9 is formed of sheet metal doubled upon itself, the end 10 being given any suitable ornamental shape and flanged, whilst in a modification an additional flange 15 and shoulder 16 for limiting the sliding are provided.
Patent GB-1171041-A (GB)
Title: Pressure Applying Apparatus.
IPC: B24B41/06
Filed: 1968-04-25
Abstract: 1,171,041. Grinding. CARBORUNDUM CO. 25 April, 1968 [28 April, 1967], No. 19594/68. Heading B3D. Apparatus for pressing a workpiece against a machine tool, such as a grinding wheel 16, comprises a work rest 54, a member 56, 58 pivotally mounted on the work rest, a slide 62 slidable along the member, the member having a work-supporting portion 56, an abutment 104 having a work-engaging surface mounted on a horizontal axis 71 on the slide, and means 106 carried by the slide for urging the workengaging surface against a workpiece. The grinding wheel is belt-driven from a motor and mounted in a casing having a door. The work rest 54 is secured to a bar 48 vertically adjustable on the casing and provided with a pivotal connection 57 to a T-shaped member 56, 58. The slide 62 is clampable in adjusted position along a slot 60 in the member, a pin 70 and bolt 72 sliding in the slot and a handle 86 acting on bolt 72 to clamp the slide. The slide comprises two plates joined at their lower ends by a pin 71 on which a pair of cranked arms 92 are mounted, the arms being joined at their upper ends by the work-engaging abutment 104. The arms are rocked about the pin to cause the abutment 104 to press a workpiece against the grinding wheel by a pneumatic cylinder 106, the rod of which actuates bellcrank levers 115 mounted on pin 70 and connected to a plate 122 on the abutment 104. Fluid pressure to cylinder 106 is controlled by a pressure regulating valve actuated by a lever 126 and has a pad 128 engageable by the leg of the operator of the machine. A quick exhaust valve 150 permits rapid return of the abutment 104. Fluid at reduced pressure is supplied to the rod end of cylinder 106 to bias the surface 104 to a retracted position. The member 56, 58 is clamped to the work rest 54 by a cam device 200 operated by a lever 218. On release of the cam device, the apparatus can be moved about pivot 57 to an inoperative position and the rest 54 is used for supporting a workpiece.
Patent GB-516637-A (GB)
Title: Improvements in or relating to cathode ray tubes
IPC: H01J29/92
Filed: 1938-07-02
Abstract: 516,637. Cathode-ray tubes. BAIRD TELEVISION, Ltd., and MERDLER, L. R. July 2, 1938, No. 19646. [Class 39 (i)] A cathode-ray tube having a bulb portion 1 containing a screen and a cylindrical neck portion 3 of less diameter than the bulb portion, has a pinch 6 situated in a lateral extension 5 of the tube, no connecting wires being taken out through the end of the neck remote from the screen. A focussing coil 7, which may be partly surrounded by an iron shield, surrounds the neck between the extension 5 and the gun and magnetic deflecting means 8 surround the neck between the extension and the bulb. If electrostatic deflecting means are used the leads therefrom may pass out through the pinch 6. A fluorescent screen 2 is on the-bulb.
Patent GB-927751-A (GB)
Title: Production of reinforced and laminated structures
IPC: B29C65/52
Filed: 1959-06-09
Abstract: 927,751. Laminates and laminating. MONSANTO CHEMICAL CO. June 9, 1959 [June 9, 1958], No. 19682/59. Class 140. A substantially rigid, lightweight, reinforced structure is made by cutting a sheet of a foamed polymer having a strong adherent flexible sheet of covering material on one or both sides into a plurality of strips of substantially equal width, turning the strips to expose the freshly cut surfaces and bring the other surfaces into facing relationship, applying an adhesive to at least one of each pair of facing surfaces and pressing them into contact. As shown, a foamable polystyrene composition, containing pentane, is extruded from an orifice 22 into the nip of rollers 26 which cool the surface and provide a smooth surface. Sheets of paper from rolls 35 are heated by means not shown and applied by rolls 32 to the polystyrene while they are still at a temperature above its melting point, so bonding them to the foamed layer. The laminate then passes through a steam chest 38 in which the foamed layer is further expanded. It is then cut by the saw blades 42 into strips which are turned by the fingers 45, and have adhesive applied to them by fingers 46. They are pressed together by rollers 48. Paper sheets 52 and 52a are coated with adhesive by the rollers 54 and 54a and pressed on to the top and bottom surfaces of the reinforced sheet by rollers 56 and platens 58. The product is then delivered to a cutting station (not shown). Alternatively, the foamed polymer may be a polymer of a homologue of styrene, or of styrene containing a nuclear halogen substituent, a mixture of such polymers, an interpolymer of styrene, a homologue of styrene or a halostyrene with another vinylidene monomer, a mixture of one of these polymers with another polymer, or a graft polymer obtained by polymerising styrene, a homologue of styrene or a halostyrene in the presence of a rubbery diene polymer. The covering flexible material may be paper reinforced with a thermoset synthetic resin, e.g. melamine-, urea- or phenol-aldehyde condensation product, metal, a flexible synthetic resin, e.g. polystyrene, polyethylene or polyvinyl chloride, a glass-fibre sheet impregnated with a thermoset polyester resin or a phenol-formaldehyde condensation product, a flexible sheet of wood or a textile fabric. The facing sheets (52 and 52a) may be of any of the same materials, or or hardboard. Specification 814,739 is referred to.
Patent GB-498689-A (GB)
Title: Improvements relating to slicing machines
IPC: B26D7/32
Filed: 1937-07-16
Abstract: 498,689. Slicing-machines. BERKEL & PARNALL'S SLICING MACHINE MANUFACTURING CO., Ltd. (Maatschappij van Berkel's Patent N.V.) July 16, 1937, Nos. 19720 and 20852. [Class 28 (ii)] Slice-stacking mechanism, applied to a slicing-machine having a substance-supporting carriage reciprocated by crank mechanism. comprises a conveyer which is driven to-andfro rotationally by crank mechanism working in unison with the carriage crank mechanism. As shown, the conveyer 1 is driven by a crank 12 on a shaft 15 geared to the flywheel shaft 19, the crank being connected at 11 to a rack 9 slidable in guides 10 and meshed with a pinion 8 on the shaft 3 which is connected to the base of the conveyer by a pin 4 and locking-device 5. The rack 9 is offset from the centre of rotation of the crank to produce a quick-return motion of the conveyer in harmony with the similarly produced quickreturn of the carriage .20. The carriagedriving crank 22, on the shaft 21, and the crank 12 are relatively spaced apart by an angle of 90‹ when the crank 22 is at rightangles to the direction of the motion of the carriage. The discharge fly 26 has a shaft 27 journalled in a bearing 28 and is operated by a roller 30 engaging a cam 31 secured to a gear-wheel 32 driven by a wheel 14 on the shaft 15 through an idler 33. A known braking device, in which the brake resistance progressively increases during the slice-discharging action, is connected to the fly. The roller 30 is kept in contact with the cam 31 by a tension spring or by a torsion spring on the shaft 27. The straight rack 9 may be replaced by a toothed sector, and the cam 31 may be arranged otherwise than on the conveyer shaft 3.