baber/WOPTO huggingface dataset:
Patent GB-680614-A (GB)
Title: Improvements in or relating to regulator valves applicable to coal gas production
IPC: G05D16/06
Filed: 1948-09-27
Abstract: 680,614. Fluid-actuated valves. YOUNG, J. W. Oct. 26, 1949 [Sept. 27, 1948], No. 25106/48. Class 135. A regulator valve for use, e.g. in apparatus for the production of coal gas comprises a butterfly valve 23 controlling the by-pass of a pump drawing gas from a retort, and actuated by a bell 1 suspended from a beam 6 and counterbalanced by a tank 7 connected to the valve by a rod 26 and crank 25. The bell is subject to the pressure in a pipe connecting the retort to the pump. Water is supplied to the tank 7 from a cistern through a conduit 9 controlled by a diaphragm-operated valve 14, there being a leak aperture 12 in the conduit. The underside of the diaphragm is subjected to the pressure in the said pipe acting in opposition to a spring. Thus if the vacuum decreases, the bell rises, and the water valve opens to increase the supply to the tank which causes the beam to pivot in a clockwise direction thus closing the valve 23 to increase the suction of the pump, and vice-versa. The column of liquid in the conduit 9 is acted on by the pressure beneath the diaphragm, and should the pressure in the said pipe rise excessively the liquid is moved into the tank 7 to cause a rapid closure of the valve 23. The valve 11 may control the leak 12 instead of the supply, and the tank 7 may control a valve in the said pipe.
Patent GB-469703-A (GB)
Title: Adjustable cradle
IPC: A47D9/00
Filed: 1936-09-16
Abstract: 469,703. Infants' cots. PIMBURY, E. M. Sept. 16, 1936, No. 25194. [Class 52 (ii)] An extensible folding cot comprises extensible side members 1 secured to end supports 3 on which the cot stands, a sack 7 threaded on to the side members so as to extend with the cot, and an adjustable base 19 for varying the depth of the cot. The end supports are X- trestles held open by a head rail 10 and the side members are telescopic as also are lower stays 5. The extended positions are determined by holes in the inner and outer telescopic members 1, 1<1> which are engaged by pins and these pins may form the supporting means for the hood 11. The base 19 is suspended by adjustable straps 20, 23 from end bars 2 which are hinged and fold inwards when the cot is folded, in which position the hood 11 may be folded and pivoted on one of its pins 12 so as to hang within the bag 7, Fig. 2. The adjustable base 19 may be supported on the bottom of the bag on cheeks 24 which are hinged so as to provide levels for the base 19<1>. If the sack 7 is made of waterproof material the cot may be used as a bath.
Patent GB-204208-A (GB)
Title: Improvements in and relating to combined floor waxers and polishers
IPC: A47L11/18
Filed: 1922-09-18
Abstract: 204,208. Campbell, J. R. Sept. 18, 1922. Floors, cleaning. - In a casing 1, Fig. 1, is mounted an electric motor 5 connected by driving means to a detachable polishing brush 15 or to a detachable waxing element consisting of a drum 14, Fig. 3, on which is wound a waxed pad 22. The pad is provided with loops to engage with hooks 20 provided on flanges 19 formed on the ends of the drum. Instead of the brush 15 a dry pad wound on the drum 14 may be employed. The waxing or polishing element is formed with a squared end 13 adapted to be inserted in an orifice 12 in a pulley 8 driven from the motor 5, the opposite end of the element being recessed to receive a reduced part of a stud 16 which is screw-threaded in the casing 1. The device is supported on castors 7. The leads from the motor extend through the casing and alongside the forked handle 3.
Patent GB-1279231-A (GB)
Title: Electrostatographic developer
Inventor: LAWES LOUIS FREDERICK WILLIAM
IPC: G03G9/10
Filed: 1970-04-09
Abstract: 1279231 Electrostatographic development SPERRY RAND CORP 9 April 1970 [7 June 1966] 25268/66 Heading G2H An electrostatographic non-magnetic developer comprises (a) toner particles and (b) carrier particles consisting of lead optionally coated with a material which modifies the triboelectric properties of the particles, the largest dimension of the carrier particles being within the range 0À04 to 0À5 mm.
Patent GB-172123-A (GB)
Title: Improvements in and relating to road signals
IPC: G08G1/09
Filed: 1920-09-01
Abstract: 172,123. Lyman, C. E. Sept. 1. 1920. Road signals. - A device for signalling the approach of vehicles to cross roads or other danger points comprises a pair of spring ramps 10, 11 arranged across the road. A vehicle approaching the cross roads &c. depresses the ramp 10 and causes the signal horn 20, Fig. 6, to sound through the depression of the rod 15 by the pivoted arm 12. The signal is not operated by a vehicle coming away from the danger point as depression of the ramp 11 causes the signal mechanism to be temporarily cut out owing to an arm 22 pushing aside the arm 12. In another form a signal bell is electrically actuated, or rotary discs may be used as visual signals.
Patent GB-1490895-A (GB)
Title: Multiple-part side wall framework for drawers and trays
IPC: A47F5/00
Filed: 1975-06-13
Abstract: 1490895 Drawers J KESSEBOHMER and H J KESSEBOHMER [trading as HEINRICH J KESSEBOHMER DRAHT-UND METALLWARENFABRIK UND DRAHTGROSSHANDEL OHG] 13 June 1975 [15 April 1975] 25309/75 Heading A4B A drawer, tray or like container comprises four side walls 1-4 each formed by a framework of wires having upper and lower longitudinal wire 5, 6 inter-connected intermediate their ends by transverse wires 8, 9, 10, the protruding, flattened ends 12 of the longitudinal wires 5, 6 having holes 11 which receive rivets 13 which act as hinge pins inter-connecting adjacent side walls.
Patent GB-1346481-A (GB)
Title: Method and apparatus for finishing cellulose containing textile materials and textile materials thus produced
IPC: D06B21/00
Filed: 1971-04-19
Abstract: 1346481 Impregnating webs TRIATEX INTERNATIONAL AG 19 April 1971 [26 March 1970] 25362/71 Heading D1L In the impregnation of a textile material with a finishing agent, the material 10 has the bath 22 containing the agent applied to one surface by a kiss roll 20 partially immersed in the bath, the degree of immersion controlled by a mechanism 23 to raise and lower the vat, a doctor 42 controlling the film on the roll 20. The rate of rotation of the roll is less than the movement of the textile material and is variable to control the amount taken up by the material, which amount is measured by a detector 34, a similar detector 26 measuring the weight and moisture content before coating so that a control unit 30 attached to each can vary the roll rotation, this being to keep the amount of agent applied below of the dry weight of the material, where W is the moisture retention capacity of the material in percent, determined by test method ASTM-D2402-65T. After impregnation the material is partially dried in a mechanism 50. A heater 40 may be provided to control the viscosity of the bath, and a further detector mechanism 54 can be provided to measure the final residual moisture in the web, and control the throughput speed of the material 10. As an alternative to the control of roller speed by the detector mechanism 34 (or in addition thereto) a sensor 33 may be positioned to maintain, by adjustment of the roll speed, the level of the bath constant so that the amount applied to the material exactly corresponds to the infeed to the bath.
Patent GB-495503-A (GB)
Title: An improved method of wrapping pressed yeast
IPC: C12N1/04
Filed: 1937-09-18
Abstract: 495,503. Packing yeast; wrappers. TRIGGS, W. W. (Burow, E.) Sept. 18, 1937, No. 25389. [Classes 94 (i) and 94 (ii)] Yeast is wrapped in an impervious material, such as metal foil, which is perforated in order to allow the products of metabolism to escape. The foil may be used in conjunction with paper, which may also be perforated, and the perforations may be arranged to register or to be relatively displaced.
Patent GB-382989-A (GB)
Title: Safety device for cinematographic apparatus
IPC: G03B21/18
Filed: 1931-09-10
Abstract: 382,989. Kinematograph apparatus. KRUPCSINSZKY, M. and LEFKOVITS, E., Trebisov, Czecho-Slovakia. Sept. 10, 1931, No. 25424. [Class 97 (i).] A safety device comprises a cylinder without teeth arranged in such relation to the intermittent sprocket below the gate that the film surrounds at least two-thirds of the circumference of the sprocket. As shown in Fig. 1, b is the film, d the intermittent sprocket, c the pressure rollers, and 1 the safety cylinder. As shown in Fig. 3, the cylinder is provided with collars 1<1> and is rotatable on an axle 2, having a collar 6 near its inner end, and a pin 2<11> near its outer end to secure the cylinder against lateral shifting. The axle 2 is hinged to a bolt 3 threaded into the main frame and held by a nut 5, a flat spring 4 mounted on the bolt 3 bearing on the inner end of the axle, the spring holding the axle both in the normal and the swing-out positions.
Patent GB-824142-A (GB)
Title: Improvements in or relating to the synthesis of sulphur tetrafluoride
IPC: C01B17/46
Filed: 1957-08-13
Abstract: SF4 is prepared by reacting an alkali metal fluoride with a sulphur chloride or with a mixture of (a) free chlorine and free sulphur, (b) free chlorine and a sulphur chloride, or (c) free chlorine and an anhydrous binary sulphide which under the rection conditions acts as a source of sulphur or sulphur chloride. Preferably the reaction mixture comprises, in addition to the alkali metal fluoride, free sulphur and free chlorine or the compounds S2Cl2 or SCl2 with or without additional chlorine.  Certain anhydrous binary sulphides, e.g. sulphides of the alkali metals preferably Na or K, sulphides of Group II metals, e.g. CaS, BaS, and ZnS or Fe, Co, or Ni sulphides, for example FeS, which form sulphur or a sulphur chloride when mixed with chlorine under reaction conditions may also constitute reaction mixtures with the alkali metal fluoride and free chlorine.  The alkali metal fluorides preferably NaF and KF may be in 5-50% molar excess of the stoichiometric amount required.  The Cl : S atom ratio of the reactants should be at least 1 : 1 preferably at least 2 : 1. The process may be carried out in the absence of any diluent or in any inert organic liquid medium having a dielectric constant of less than 20 at 20 DEG  C., e.g. perfluorinated hydrocarbons, for example perfluoro-n-heptane, perfluoro-n-decane and perfluoro-(methyl cyclohexane), but preferably in an inert organic liquid medium, having a dielectric constant greater than 20 at 20 DEG  C., which contains only C and H and one of the functional groups <FORM:0824142/III/1> -O-SO2-O- of which a number of specified, e.g. acetonitrile or dimethyformamide.  The reaction media should preferably be miscible with Cl2 or chlorine-containing reactants and be used in a proportion at least equal to the weight of alkali metal fluoride present.  In the absence of a diluent or in the presence of a diluent of low dielectric constant the reaction temperature is 150-250 DEG  C. depending on the alkali metal fluoride employed. When using S2Cl2 or Sel2 the reaction may be carried out under atmospheric pressure whereas otherwise the reaction is carried out in an autoclave under autogenous pressure.  Reaction temperatures, when using high dielectric constant media range from 20- 150 DEG  C. and pressures of rear atmospheric are employed.  SF4 is removed from the reaction products, e.g. S2Cl2, Sel2 and thionyl chloride, by evaporation and fractional distillation.  Any SF6 present in the products is removed by fractional distillation or by contacting the reaction mixture with a tertiary amine, e.g. pyridine or triethylamine at 100 DEG  C. whereby SF4 forms as a solid adduct which may be separated and the purified SF4 recovered by dissociation.  Specification 758,477, [Group IV (b)], is referred to.
Patent GB-224523-A (GB)
Title: Improvements in and relating to lantern slides and optical projectors therefor
IPC: G03B21/64
Filed: 1924-10-27
Abstract: 224,523. Freeman, J. R. Nov. 10, 1923, [Convention date]. Lantern slides have one corner 11 clipped in order to indicate in the dark the proper position for inserting them into the projector; and the projector is provided with means for indicating whether a slide has been properly inserted. The clipped corner may, be formed either on the slide, or on the cover plate, or on both. A pin 13 may be removably fitted in the slide receptacle 12 of the projector in such a position that it prevents complete insertion of the slide (shown dotted) unless the clipped corner engages the pin.
Patent GB-369145-A (GB)
Title: Improvements in or relating to common wave broadcasting systems
IPC: B62J1/00
Filed: 1931-09-12
Abstract: 369,145. Wireless transmitting systems. HARBICH, H., 1, Brukenstrasse, Steglitz, Berlin. Sept. 12, 1931, No. 25657. Convention date, Sept. 13, 1930. [Class 40 (v).] The extent of the area of mutual interference between signals broadcast on a common carrierfrequency from different stations is minimized and kept constant by automatically maintaining the percentage modulation below a predetermined value. In addition the location of the zone of interference is shifted, preferably to a thinly-populated area, by regulating the relative amplitudes of the radiated carrierwaves.
Patent GB-1333507-A (GB)
Title: Exhaust gas recirculation control valve assembly for an internal combustion engine
IPC: F02B75/22
Filed: 1971-11-04
Abstract: 1333507 Recirculating I.C. engine exhaust gases GENERAL MOTORS CORP 4 Nov 1971 [16 Nov 1970 17 Nov 1970] 25710/72 Divided out of 1333506 Heading F1B [Also in Division F2] The subject-matter of this Specification is identical with that described in Specification 1333506, but the claims are concerned with the vacuum-operated valve for controlling exhaust gas recirculation.
Patent GB-246573-A (GB)
Title: Improvements in relays for electric motor control and other purposes
IPC: G05D3/14
Filed: 1924-10-29
Abstract: 246,573. Henderson, Sir J. B. Oct. 29, 1924. Hunting switches. - A hunting-switch compriser on arm 10, which may be part of a gyroscope, having a roller on its end contacting with a commutator 13 carried by a following- part 17, which is caused to follow the movement of the arm 10 according to which segment of the commutator is in contact with the roller 12. The commutator 13 is pivoted at 20 to the part 17 and has a polarized armature movable between electromagnets 23, 24 and centred therebetween by springs 21, 22. Each magnet has a pair of opposing coils a, b so arranged that the armature is deflected by an amount proportional to the velocity of hunt, and thereby causes an advance of the phase of reversal effected bv the roller 12 on the commutator 13, and so reduces the hunting. In an alternative arrangement, each magnet has only one coil which is energized inductively to cause a similar action. Specification 162,733 is referred to.
Patent GB-601820-A (GB)
Title: Improvements relating to locks for doors and the like
IPC: E05C1/16
Filed: 1945-10-04
Abstract: 601,820. Door locks. HILLS PRECISION DIE CASTINGS, Ltd., and HILL, E. B. Oct. 4, 1945, No. 25781. [Class 44] The handles 7 and 22 of a lock are connected to toothed members 8 and 29 which engage slidable racks 9 and 30 carrying lugs 10 to act on a projection 13 on the sliding latch 4 whereby it is withdrawn against springs 15. When the inside handle is moved in the direction opposite to opening, a locking device comprising a pivoted detent 17 is depressed, to engage a recess 48 in the latch 4, by a sloping cam-face 12 on the lug 10. The handle is retained in the locking position by a spring 18 engaging a groove 21. The connection from the outside handle 22 to the pinion 29 is made of adjustable length to accommodate different thicknesses of doors. It comprises two splined tubes 25, 26, Fig. 1. The lock may be adapted for right or left hand operation by removing the latch 4 and replacing it upside-down and appropriately restoring other parts.
Patent GB-259988-A (GB)
Title: Improvements in or relating to printing plates for addressing machines
IPC: B41L47/02
Filed: 1926-10-15
Abstract: 259,988. Adrema Maschinenbauges. Oct. 15, 1925, [Convention date]. Addressing-machines. - A printing-plate for use in addressing-machines consists of a main part a and an exchangeable part b, plate springs e, f being fixed to each guiding border c of the part a to engage in the borders c<1> of the part b. Each guiding border is formed by folding the edge of the plate on itself to form a channel.
Patent GB-285529-A (GB)
Title: Improvements in machines for compressing and moulding plastic or other substances
IPC: B30B11/20
Filed: 1926-10-16
Abstract: 285,529. Dryden, W. Oct. 16, 1926. Extrusion machines.-Relates to machines of the type described in Specification 237,944, and consists in mounting the inner ring on bearings carried by a fixed pivot pin and in positively driving the outer ring. As shown, the inner ring G, eccentrically disposed within the outer ring C, is supported by roller and thrust bearings N, O carried by a massive pivot pin H supported in a frame B. The ring C, furnished with apertures c<2> is interchangeably secured to a disc D flanged at d<6> to enclose the working parts and is provided with a gear E driven by a pinion e<1>. Roller and thrust bearings I, K, support the disc which is recessed at d<4> to embrace a flange a<5> adapted to form an oil bath a<4>. A plate g<1> closes the bottom of the member G to form an oil bath which is supplied from a pump M and is fitted with an overflow pipe m<2> of such height as to maintain the bearings N, O flooded ; the bearings I, K are similarly flooded. The compression space is closed at the bottom by a plate R adjustably supported by bolts r' from a flange d<8> on the disc D; and at the top by a plate S, adjustably carried on studs from the frame B, having bolted thereto a ring s' bearing upon the member G and carrying by studs s<5> an adjustable ring s<4> bearing upon the member c. Material is supplied through a hopper J. To ensure uniform compression, the outer ring C is closed by a compression plate T, Fig. 4, as described in Specification 245,286, which is supported by an adjustable bracket t<1>. A guard ring V ensures uniform extrusion and is furnished with an extension v<2> leading to a delivery shoot W<1>. The material is severed by a knife Y secured to a bracket y<1>. According to the Provisional Specification, the pivot may be below the inner ring; also a central hopper may be provided for escape of excess material.
Patent GB-532630-A (GB)
Title: Improvements in oil filters
IPC: B01D39/20
Filed: 1939-09-15
Abstract: 532,630. Stabilizing and reconditioning lubricating oils; filtering liquids. GENERAL MOTORS CORPORATION. Sept. 15, 1939, No. 25920. Convention date, Oct. 5, 1938. [Class 91] [Also in Group I] The formation of resins and acids in motor lubricating oils is prevented by inserting in the lubricating system of the engine a filtering medium impregnated with p-amino-phenol, catechol, p-phenylene-diamine or two or all of them. For example, the powdered inhibitor is conamingled with the mineral or rock wool in the filter described in U.S.A. Specification 2,079,910, or with cotton waste, cotton batten, fuller's earth, carbon or the like.
Patent GB-798073-A (GB)
Title: Methods of removing phosphorus-containing impurities from volatile compounds
IPC: C22B41/00
Filed: 1956-08-24
Abstract: Phosphorus pentachloride is removed from a compound of a semi-conductive element having a b.p. of 0-150 DEG  C. and having less affinity for aluminium chloride than has phosphorus pentachloride by treating the compound in the liquid state with aluminium chloride so as to form the complex AlCl3.PCl5 of m.p. 380 DEG  C., and separating the compound from the complex.  The compound may be trisilane, tetrasilane, trichlorosilicane, silicon tetrachloride, disilicon hexachloride, digermane, trigermane, dichlorogermane, trichlorogermane or germanium tetrachloride. Phosphorus impurites other than phosphorus pentachloride may be converted to phosphorus pentachloride by treatment with chlorine. Chlorine may be bubbled into the liquid compound so as to saturate it, or may be added as a solution of known concentration in the liquid compound.  Both the chlorine and aluminium chloride are preferably added in a molar amount at least 10-100 times the estimated molar amount of phosphorus impurities.  Silicon tetrachloride containing 10-6-10-4 mol. per cent of phosphorus impurities, may be treated with at least 10-3 and 10-2 mol. per cent respectively of chlorine and aluminium chloride.  An undissolved excess of aluminium chloride (solubility 4 X 10-3 mols. per cent as Al2Cl6 at room temperature in silicon tetrachloride) is preferably employed. The aluminium chloride added to the liquid compound is preferably ground under the surface of the liquid.  The treated liquid may be allowed to stand for at least 16 hours.  The liquid compound may be separated from the complex by fractional distillation or vaporization in hydrogen at above or below atmospheric pressure. In an alternative method of treatment with aluminium chloride, the liquid compound is passed through a bed of aluminium chloride. In an example, silicon tetrachloride containing 7 X 10-7 mol. per cent of phosphorus trichloride was treated with 2-3 X 10-1 mol. per cent of chloride and 4.3 X 10-2 mol. per cent of aluminium trichloride to produce N-type silicon of 125 ohm-cm. resistivity, corresponding to a phosphorus impurity content of 2 X 1014 phosphorus atoms per cc. Purified silicon tetrachloride vaporized in hydrogen may be converted to silicon by passing over a hot filament.
Patent GB-713153-A (GB)
Title: Anthraquinone dyestuffs
IPC: C09B5/42
Filed: 1952-10-16
Abstract: The invention comprises 1-phenylamino-3.4(N)-pyridino-anthraquinone and substitution products thereof in which the substituent or substituents is or are monovalent and present in the phenyl group. These products dye cellulose derivative (e.g. cellulose acetate) materials and may be made by reacting leuco 1-hydroxy-3.4(N)-pyridino-anthraquinone with aniline or a substitution product thereof, preferably in presence of a catalyst such as boric acid, copper powder, and manganese dioxide, and then oxidizing the leuco compound obtained.  In examples, 1-hydroxy-3.4 (N)-pyridino-anthraquinone is vatted with alkaline hydrosulphite, the leuco body is separated from the acidified vat, and reacted with aniline or p-toluidine in ethanol presence of boric acid. Substituents specified which may be present in the phenyl group are alkyl, hydroxy, hydroxymethyl, alkoxy, halogen, cyano, carboxy, carbalkoxy, acylamino, dialkylamino, phenyl, or naphthyl. 1-Hydroxy-3.4(N)-pyridinoanthraquinone is obtained from 1-hydroxy-4-amino-anthraquinone by the Skraup synthesis.
Patent GB-534897-A (GB)
Title: Improvements in compound fabrics
IPC: D06M17/00
Filed: 1939-09-18
Abstract: 534,897. Compound fabrics; coating webs. MORTON SUNDOUR FABRICS, Ltd., KILBY, W., and MATTINSON, E. H. Sept. 18, 1939, No. 26035 [Class 140] A compound fabric comprises two translucent fabrics one or each of which is rendered ornamental by pattern or colour at least on its outer surface united and rendered opaque by an intermediate coating of an aqueous emulsion of bitumen or oxidised bitumen which does not penetrate to the outer face of the fabrics. The preferred bitumen has a melting point of about 165‹F. The coating operation may be carried out by passing the fabric. supported by a rubber band, under a doctor blade the emulsion being supplied adjacent to the doctor. The coated fabric is doubled or united to an uncoated fabric by calendering.