baber/WOPTO huggingface dataset:
Patent GB-400852-A (GB)
Title: Improvement in automatic or semi-automatic weighing apparatus
IPC: G01G21/00
Filed: 1933-04-18
Abstract: 400,852. Weighing-apparatus. BROWN, J. P., 12, East Holm, Golders Green, London. April 18, 1933, No. 11390. [Class 143.] An automatic or semiautomatic weighing-apparatus arranged to give accurate indications independently of the level of the apparatus consists of two assemblies, viz. one assembly comprising a gravity control device operated by a constant moment or leverage mechanism from the goods pan or table and the other assembly comprising a simple gravity controlled pendulum, one assembly carrying the pointer and the other the chart, the pivot centres of both the pointer and the chart being in alignment. As shown in Fig. 1, the scale pan A and a counterbalance weight W<1> are suspended by flexible strips from a disc C mounted on a pivot P. The commodity is balanced by an adjustable weight W<2> and by a weight W<3> suspended from a cam C<1> attached to the disc the shape of the cam being such as to give equal angular movements of the disc for equal increments of weight. The disc bears a chart S with which a pointer B registers, the pointer being mounted on an independent pivot coaxial with the pivot P and being maintained in a vertical position by a weight W<4>. The arrangement eliminates error due to the apparatus being out of level. In a modification, Fig. 2, the disc C actuates a pointer B by means of a flexible strip F<3>, and the chart S is arranged behind the pointer on a separate pivot and is maintained in a vertical position by a counterweight W<4>. The commodity is balanced by weights W<2>, W<3>. The weighing range may be increased by an addition to the balance weight W<1>. In a further modification, the disc C is replaced by a lever, the flexible strips F, F<3> passing over curved surfaces concentric with the fulcrum of the lever. An additional curved surface is provided on the lever for the support of weights used to increase the weighing range of the apparatus. In a further modification, Fig. 5, a weighing table T is suspended from discs C', C8 fixed to the outer ends of levers L<1>, L2, the inner ends of the levers being connected by curved surfaces and flexible strips to the pointer and balancing mechanism.
Patent GB-542495-A (GB)
Title: Improvements in thermionic cathode structures for electric discharge devices
IPC: H01J1/20
Filed: 1940-07-09
Abstract: 542,495. Thermionic valves. BRITISH THOMSON-HOUSTON CO., Ltd. July 9, 1940, No. 11440. Convention date, July 11, 1939. Addition to 536,070. [Class 39 (i)] The equipotential cathodes of heavy duty rectifiers &c. comprise a ribbon wound in zig-zag formation about pins 8, 9 projecting radially from metal rings 2, 3 held in axially spaced relation by rods 4...7. The ribbon may be plane or crimped and may be formed of or covered by gauze to assist retention of the activating material. The ribbon structure may be twisted or otherwise modified in shape. A heating filament is mounted in the space enclosed by the cathode structure, which is enclosed in a heat shield consisting of two concentric metal cylinders, between which are located a plurality of layers of loosely spaced metal foil as described in the parent Specification, and having a closed cover at the bottom and an apertured plate at the top. The shield may be insulated from or electrically connected through a high resistance e.g. 1,000 ohms to the cathode. The application described is to a rectifier having a filling of mercury with a pressure of 6-24 microns at the operating temperature of 40-60‹ C. The Specification as open to inspection under Sect. 91 comprises also the alternative construction in which the ribbon is made up of a number of filaments arranged side by side in a plane. This subject-matter does not appear in the Specification as accepted.
Patent GB-1522762-A (GB)
Title: Copier document loading system
IPC: G03G15/04
Filed: 1976-03-22
Abstract: 1522762 Registering sheets XEROX CORP 22 March 1976 [30 July 1975] 11454/76 Heading B8R The subject-matter is the same as the part of that of Specification 1,522,761 relating to Figs. 6 and 8 of the drawings thereof, but the claims are directed to the registration means.
Patent GB-591698-A (GB)
Title: Improvements in or relating to oil sealing rings
IPC: F16J15/3248
Filed: 1945-05-05
Abstract: 591,698. Oil seals. COGGINS, W. T. May 5, 1945, No. 11470. [Class 122 (v)] In making an oil sealing ring comprising an annular body 1 of moulded rubber &c. reinforced by a ring 5 of metal or other rigid material embedded therein to resist lateral pressure, the reinforcing ring is cut from a tube, and may have tongues or projections thereon or be slit or notched to provide an anchorage for the rubber.
Patent GB-851431-A (GB)
Title: Improvements in driver's brake valves for compressed fluid braking apparatus particularly for railway vehicles
IPC: B60T15/04
Filed: 1959-04-03
Abstract: 851,431. Fluid-pressure brakes. COMPAGNIE DES FREINS ET SIGNAL WESTINGHOUSE. April 3, 1959 [April 4, 1958], No. 11477/59. Class 103 (1). A compressed fluid braking apparatus of the kind comprising a brake pipe 2 the pressure of compressed fluid in which is reduced from and restored to a normal fully charged valve to cause respectively the application and release of the brakes and a main reservoir (not shown, connected to pipe 1) for storing compressed fluid at a value of pressure in excess of the normal fully charged value of brake pipe pressure, a driver's brake valve having a pilot portion (comprising a beam having at each end a roller 70 following a cam track 71) to derive from the main reservoir a control pressure determined in accordance with the position of the device, and a relay portion (comprising the tubular stem 25 with axial passage 26 integral with the piston 27) which maintains in the brake pipe a pressure proportional to the control pressure; and which further comprises a fluid pressure operated loading device (piston 22) adapted to impose on the relay portion to a degree proportional to the pressure of compressed fluid to which it is subject a bias tendency to increase the brake pipe pressure above the value corresponding to the prevailing control pressure. A permanently open restricted vent path, consisting of an opening 34 and overcharge reservoir 33, is connected to pipe 3 and permits the escape of compressed fluid acting on the loading device, a valve 19 controlling an unobstructed communication between the main reservoir and the brake pipe, and a pressure sensitive element 46 controlling the valve and movable upon a pressure derived from the brake pipe on one side, attaining a predetermined relationship to a reference pressure derived from the main reservoir on the other side thereof from a first position corresponding to the valve being open for overcharging of the brake pipe to a second position in which the valve is closed, and in which a supply path to the loading device established in the first position is cut off, whereby the brake pipe pressure is reduced gradually from the overcharged condition towards the normal fully charged value as the pressure at the loading device reduces, in the absence of a supply, over the restricted vent path.
Patent GB-1024924-A (GB)
Title: Process for the removal of impurities from wet process phosphoric acid
IPC: G01P15/12
Filed: 1964-03-18
Abstract: Impurities are removed from wet-process phosphoric acid containing known quantities of Ca, Al, Si, F and sulphate compounds by adjusting the mole ratios of Al to Si in the acid to 1:0.8 to 1 and Al to F to 1:12 to 16 and adding a soluble calcium orthophosphate in an amount sufficient to react wiIh the impurities and form a complex crystalline solid which can be separated.  The ratios of Al:Si:F-: So4-: Ca++ lie within the range 1:1:12-16: 1.5-2: 4-8.  Aluminium may be added as the metal or in the form of a soluble alumina and fluorine as hydrofluoric acid.  Examples relate to batchwise and continuous processes.
Patent GB-572570-A (GB)
Title: Improvements in or relating to radio direction finding and indicating apparatus
IPC: G01S3/02
Filed: 1940-07-11
Abstract: 572,570. Instructional directionfinding apparatus. REDIFFUSION, Ltd., ADORJAN, P., and GABRIEL, R. P. July 11, 1940, No. 11552. [Class 40 (v)] In arrangements for teaching the taking of direction-finding readings by means of instructor's apparatus arranged to transmit currents of varying amplitude or phase to a number of pupils' apparatus, as in Specification 572,508, the instructor's apparatus comprises a number of transmitter units jointly controlled by rotary arms related to a fixed point. Each transmitter unit 7 comprises a rotatable coil fed by an oscillation generator and situated within fixed crossed coils which are wired to the pupils' apparatus. The units 7 are detachably mounted beneath a table 3 on which is stretched a map 4, and may be placed in various positions 6 corresponding to transmitting stations. Two, three or more units may be used, each sending its own characteristic signal, and the position of their rotatable coils is determined by pointers or slotted arms 14 which intersect at a point 16 on the map. The pupils, by taking the several readings on their receiving apparatus and identifying their source, are able to ascertain their apparent map position. The slotted arms 14 may be interconnected by a pin 16 resting on the map surface and locked and released by a nut 17. A compass ring 21 and pointer 20 may be provided to indicate the setting of each rotatable coil. The relative angular position of the rotatable coil and the arm 14 may be given a slight adjustment indicated by a pointer 23 and scale 24 to compensate for map errors.
Patent GB-1286195-A (GB)
Title: Improvements in vertical slat blinds
Inventor: ALLSOPP REGINALD CHARLES
IPC: E06B9/36
Filed: 1970-03-11
Abstract: 1286195 Collapsible vertical slat blinds R C ALLSOPP 19 April 1971 [11 March 1970] 11555/70 Heading E1J In a collapsible vertical slat blind in which the slats b are pivotally suspended from respective trucks B mounted to slide on a tilt shaft 1 in a housing A of inverted channel section, the housing A is grooved longitudinally at a on each side between the upper edge and the sides and an angle bracket C is formed with a peg c stamped downwardly from one arm to engage the groove a on one side of the channel and with a flange c' on that arm to engage the other side of the channel member to which it is attached by a grub screw. Further brackets D with depending legs d<SP>3</SP> are secured in the grooves a adjacent each end of the housing A to position a pelmit D<SP>1</SP> around the ends of the housing A. The shaft 1 is mounted in end caps Fig. 2 which are provided with flanges to resiliently engage the sides of the channel member A, one of the end caps comprising a double walled cap to enclose the pulley for rotating the tilt shaft 1 and which is keyed on to shaft 1, the plates of the cap being spaced apart and connected by sleeved screws, and provided with inturned flanges to spring between the sides a<SP>1</SP>, a<SP>2</SP> of the channel, the opposite end of the housing is closed by an end plate forming a bearing for the other end of the shaft 1 and similarly sprung between the sides of the channels.
Patent GB-1463134-A (GB)
Title: Absorbent materials
IPC: B32B5/24
Filed: 1974-03-15
Abstract: 1463134 Absorbent laminated pads ROHM & HAAS CO 15 March 1974 [24 April 1973 5 Sept 1973] 11587/74 Heading B5N [Also in Divisions B1-B2] A flexible absorbent pad comprises a top layer of polymeric foam material which is permeable to liquids, an underlying layer of liquid absorbent material and a bottom layer of flexible material, the polymeric foam material being a crushed foam of addition polymer which has been crushed to a thickness of from 1 to 10 mils after drying to at least a touch-dry state. The liquid absorbent material may be cellulose wadding made from wood pulp, cotton or rayon, garnetted cotton, wood or rayon fibres, crepe or tissue or organic fibres, e.g. polyolefine, polyester, acrylic or polyvinyl fibres. The bottom layer is preferably liquid impermeable and may comprise polyethylene or polypropylene. The pad may be made by forming a foam layer on a release paper, drying the foam, applying the resultant composite to the other components and passing the resultant assembly through a heated nip to crush the foam and bond the components prior to stripping off the release paper; alternatively, the foam-forming reactants may be applied to the liquid absorbent material overlying the flexible material, the foam dried and the resultant assembly passed through a heated nip. The foam, which may be pigmented, may contain conventional additives, e.g. cross-linking agents, catalysts and thickeners may be thermoplastic, cross-linkable or thermosetting and may be a copolymer of a monomer of the formula where R is hydrogen or a C 1  to C 4  alkyl and R<SP>1</SP> is a straight or branched radical of a primary or secondary alkanol, alkoxyalkanol or alkylthio alkanol, the alkanol having from 2 to 14 carbon atoms, butadiene, ethylene, propylene, vinyl acetate or vinyl chloride and a monovinyl aromatic monomer, an acrylic and/or methacrylic acid ester, a vinyl halide, vinyl nitrile, an unsaturated monocarboxylic acid, a half ester or half amide of an α,#-unsaturated dicarboxylic acid or a salt thereof. Many suitable monomers are listed, preferred monomers having the Formulae (II) where R is hydrogen or a C 1  to C 4  alkyl and n is 1 to 4; (II) CH=C(R)AYNR<SP>1</SP>R<SP>2</SP>, where R is hydrogen or methyl, A is O, S, Y is a C 2  to C 4  alkylene group, R<SP>1</SP> and R<SP>2</SP> are each hydrogen or a C 1  to C 4  alkyl, (III) where R is as defined above and Z is a C 2  or C 3  alkylene group, (IV) where R and Z are as defined above and (V) where A is a C 2  to C 10  alkylene group of which at least 2 carbon atoms extend in a chain between the adjoining oxygen atoms.
Patent GB-611328-A (GB)
Title: Improvements in the production of coloured pictures, such as photographs, drawing or sketches
IPC: G03C11/18
Filed: 1946-04-16
Abstract: 611,328. Colouring pictures. CANTY, J. J. April 16, 1946, No. 11605. [Class 98 (ii)] [Also in Group XV] Pictures such as photographs, drawings or sketches are coloured by applying dry pigment or pigments thereto, and, with the aid of a thin clear oil applied sparingly, working the pigments on the picture to achieve the desired colouring effect, and then fixing the pigments with a colourless varnish which may be sprayed on to the picture. In a preferred method the picture is first prepared as by application of rape oil, pigments are applied by scribbling with appropriately coloured crayons and the pigments, rendered mobile by the oil, are blended, erased or worked together as required by means of the finger, a brush or a small rubber sponge. An example which describes the colouring of a picture including the head and shoulders of a man indicates that an applied colour may be retained uniformly in a particular portion, such as that depicting the shirt and collar, and that colours may be blended for other portions such as the cheeks. Shellac varnish is used as fixative.
Patent GB-497537-A (GB)
Title: Improvements in bourdon springs for pressure sensitive measuring instruments
IPC: G01L7/04
Filed: 1938-04-19
Abstract: 497,537. Bourdon pressure gauges. SCHLAICH, H. April 19, 1938, No. 11669. Convention date, April 15, 1937. [Class 106 (ii)] Comprises a Bourdon tube in the form of a double coil, double spiral, or double helix or turns in which part of the tube in the middle of its length intermediate of the ends is provided with a strengthening rib. The instrument consists of a casing 1, a Bourdon tube 2, a compensating spring 3, a setting screw 4 and an indicating element 8. The tube is wound to form a double coil 2a, 2b connected by a turn 2c which has a strengthening rib 6 of the section shown in Fig. 3. The rib may run uniformly or taper down and decrease in thickness at the ends or again may keep the same thickness and narrow gradually at the ends or both. The total length of rib formed in the middle part of the spring is such that when the spring is fully wound the part of the rib 6 of uniform thickness extends over the connecting turn while the tapering parts of the rib are situated within the outer turns of the respective coils. A plurality of ribs located side by side may be employed. Specification 237,218, [Class 106 (ii)], is referred to.
Patent GB-325742-A (GB)
Title: Improvements in and relating to radiators and other heat interchange apparatus
IPC: F28D1/053
Filed: 1929-04-16
Abstract: 325,742. Mather, C. April 16, 1929. Tubes, cross-sections of; gills for tubes.-In tubular radiators, twin or multiple tubes 10, Figs. 1 and 2, connected throughout their length by isolating webs joined at 11 are built up preferably in staggered relationship and are provided with gills 12 folded into zig-zag form to embrace wholly or partly some or all of the tubes. A pressing or staying effect is thereby exerted on the tubes, preventing the web from opening. The ends of double tubes may be expanded to form one connecting end for the headers. In a modification, curved slits are made between the holes forming tongues 15, Fig. 11, which lie along and against the webs of the tubes and are welded thereto.
Patent GB-1216176-A (GB)
Title: Process for the heat treatment of biaxially stretched thermoplastic resin films
IPC: B29D7/00
Filed: 1969-03-05
Abstract: 1,216,176. Heat treating biaxially stretched synthetic resin films. KOBUNSHI KAKO KENKYUJO K.K. 5 March, 1969 [5 March, 1968], No. 11764/69. Heading B5B. Biaxially stretched thermoplastic synthetic resin films are heat treated by passing a pair of such films, one of which is superimposed on and in contact with the other, in a sinuous path around a series of heating rolls in successive groups, the heating rolls in each of said successive groups being at a higher temperature than that of the rolls of the preceding groups and being rotated at a peripheral speed which is equal to or lower than that of the rolls of the immediately preceding group and is lower than that of the rolls of at least one preceding group to carry out successive heat-treatment steps under such conditions that the film webs are contracted or relaxed in the longitudinal and transverse directions to give a relaxation or a contraction in area of less than 25%. The pair of film webs may be prepared from a biaxially stretched tubular film of the synthetic resin. The two film webs may be separated after the heat treatment or may be laminated to one another under pressure after the heat treatment. The synthetic resin may be polypropylene, high density polyethylene, polystyrene, a polyester or polyvinyl chloride. When the synthetic resin is polystyrene, five groups of heat-treatment rolls may be employed, maintained at about 80 C., about 100 C., about 115 C., about 135 C. and about 145 C. respectively. When it is high density polyethylene, four groups of rolls at about 80 C., about 100 C., about 115 C. and about 124 C. respectively may be employed. Each group of heat-treatment rolls may comprise two heat-treatment rolls.
Patent GB-456971-A (GB)
Title: Improvements in and relating to liquid circulating systems containing an electric heater
IPC: F24H1/10
Filed: 1935-04-17
Abstract: 456,971. Heating liquids by electricity. MOCK, H. O., CALDWELL, P. G., and CALDWELL HEATER & BATTERY CHARGER PATENT, Ltd., Aldwych House, Aldwych, London. April 17, 1935, No. 11801. [Class 39 (iii)] A liquid circulating system, which may be the cooling system of a motor vehicle engine, contains a flow heater 1 in which the liquid flows in oppositely directed streams over the heating unit 4 due to the provision of a single inlet 8 at the centre of one side and outlets 10, 11 at the ends of the opposite side. Alternatively two inlets 14, 15 and a single outlet 15 are provided. The heating unit is a tapped coil arranged in a metal casing screwed into the heater. Specifications 206,903, [Class 39 (iii)], and 456,972 are referred to.
Patent GB-963230-A (GB)
Title: Treatment of molten metals
Inventor: DUCKETT REGINALD GERALD
IPC: C22B9/10
Filed: 1962-03-28
Abstract: The method of removing suspended oxides from aluminium, magnesium or alloys of either or both by treating them with a molten salt mixture capable of wetting, coalescing and retaining the oxide particles as in the parent Specification, is modified in that a known grain refining agent is included in the salt mixture. Suitable grain refining agents described are Ti and/or B containing salts such as sodium or potassium titanofluoride or borofluoride.  A composition consisting of sodium chloride 42%, potassium chloride 42%, sodium fluoride 6%, potassium titanofluoride 6%, potassium borofluoride 4% is described. According to another aspect of the invention sodium silico-fluoride is blown into the molten salt mixture to remove traces of magnesium and hexachlorethane is used to remove sodium and also to degas the melt.
Patent GB-768629-A (GB)
Title: Improvements relating to rotary treatment cylinders, drums and the like
IPC: F26B11/02
Filed: 1955-04-26
Abstract: 768,629. Antifriction-wheel bearings. FELLNER & ZIEGLER GES. April 26, 1955 [March 12, 1955], No. 12021/55. Class 12 (1). A rotary treatment cylinder, drum, tubular furnace 1, Figs. 1 and 2, or the like, set at a slight inclination to the horizontal is fitted with race-rings 2, 3 running on support rollers 4, 5 respectively and is fitted with pressure rollers 12, 13 one at each side of the race-ring 3, the lower end of the axles of the rollers being mounted in a cross-member 16 to which a reciprocating movement is imparted by automatically controlled means whereby the cylindrical body is positively forced and controlled both up and down the inclination at which it is set. As shown, the cross-member 16 is connected to a fixed base-plate 21 by links 17, 18, the link 18 having an arm formed at the end with an eye 23 to which is pivotally connected the upper end of a ram 29. The ram works in a cylinder 26 the lower end of which is pivotally mounted in a bearing bracket 28. Oil under pressure is adapted to be supplied through a pipe 30 to either end of the cylinder. The control of the ram strokes may be effected as shown diagrammatically in Fig. 4, in which the ram 29 is shown acting directly on the cross-member 16. At the other end the cross-member has a rod 31 which operates an electric switch 32 adapted to switch on and off an auxiliary current for a relay device 33 to open and close a switch 34. When switch 34 is closed an electromagnet 35 is energized to lift a toothed rack 36 meshing with a pinion 37 mounted on the spindle of a rotary valve. The actuation of the valve causes pressure fluid to flow either through pipe line 42 or pipe line 43 to one or other side of the piston 26a connected to the ram 29. The weight of the cylinder may be taken up by means of a pressure roller 6, Fig. 1, which is mounted in a cross-piece 45 supported on a base-plate 48 by pairs of links 46, 47. The links of the pair 47 are formed as lever arms 49 slotted to carry adjustably a rod 54 carrying counterweights 55 whereby the roller 6 is pressed against the race-ring 2. The pressure of the roller 6 against the race-ring may be adjusted by means of a nut on the lever arms 49, through which is screwed a spindle 57 provided with a hand wheel 56. More than one race-ring may be provided with weightcompensating means.