baber/WOPTO huggingface dataset:
Patent GB-760858-A (GB)
Title: Recording interferometric arrangement for refractive index analysis of flowing media
IPC: G01N21/45
Filed: 1954-07-07
Abstract: 760,858. Interference refractometers. LKB - PRODUKTER FABRIKSAKTIEBOLAG. July 7, 1954 [Sept. 3, 1953], No. 19866/54. Class 97(1) A device for refractive index analysis of a flowing medium comprises a source of monochromatic light which is collimated and split by a partially reflecting film into two coherent beams which pass respectively through the medium under investigation and a reference medium and are then re-united by a device of the same construction as the beam splitting device, and passed through a spherical optical system which images on to a moving light sensitive device transverse cross-sections at the central points of the lengths of the paths through the two media, a slit diaphragm being provided close to the moving light sensitive device transverse to its direction of movement. As shown, monochromatic light is concentrated on a slit B, by a condenser, from a source with a line spectrum in combination with a filter A. The light is collimated by a lens C and falls normally on one wall of a prism E formed of two right-angled prisms with a partially reflecting film between. Parts of the beams so formed pass through compartments a-# of a cell F and fall normally on a reflecting wall at the bottom thereof to be recombined by the prism and passed through the lens D. The unknown medium ' passes vertically through the compartments a, d, c in sequence; the compartments b, e, f contain a reference medium. Three sets of fringes are formed and imaged by the lens D on a film on a drum G through a slit I transverse to the direction of film movement as the drum is rotated by the motor H. At one side of the film fringes formed by light from the compartments d, f, provide a measure of refractive index, while at the other the fringes formed by light from the compartments a, c provide a measure of refractive index gradient. Between these fringes a system of stationary reference fringes is formed by light from the compartments b, e
Patent GB-384938-A (GB)
Title: An improved table tennis clamp or post
IPC: A63B67/04
Filed: 1932-07-14
Abstract: 384,938. Posts for table tennis nets. JAY, E., 19, Clerkenwell Close, London, and WILKES, F. W., Sparrowsnest, Wood Norton, near Evesham, Worcestershire. July 14, 1932, No. 19947. [Class 132 (ii).] The posts carrying a table tennis net are supported on bases connected by an elastic member to facilitate attachment to a table. The post 2 of metal or wood is screwed to a horizontal narrow strip of material 3, preferably of wood, forming a base and having secured to it a curved or bent member 9, preferably of metal, adapted to fit around the edge of the table 4. The strip 3 is provided with an eye 10 to which is secured one end of a coiled spring or elastic thread 11 the other end of which is secured to the other post base across.the table. The post 2 has also secured to it eyes 5, 6 for attachment of cords 7, 8 passing through hems in the net 1. According to the Provisional Specification the elastic thread may be of rubber.
Patent GB-531013-A (GB)
Title: Device for the trimming of the rounded edges of grinding wheels and chiefly for machines used for the grinding of gear wheels
IPC: B24B53/075
Filed: 1939-07-08
Abstract: 531,013. Trimming grinding-wheels. FAIRWEATHER, W. C. (Soc. Francaise d'Engrenages a Denture Rectifiee). July 8, 1939, No. 19952. [Class 60] A device for trimming grinding wheels, particularly the rounded edges of formed wheels for grinding gears comprises a diamond 13 which is oscillated by hand across the periphery of the wheel over an arc determined by adjustable stops and is mounted on compound slides which are locked by a single locking device. The base 1 has an inclined guideway 4 carrying a lower slide block 2 adjustable by a hand operated screw 19. A top slide 6, adjustable on a guide 8 on the slide 2 by means of a screw 20, has a part 9 provided with a socket 11 in which the holder 12 of the diamond tool 13 is mounted. A handle 14 is secured to the upper end of the tool holder and a split collar 16 adjustable on the part 9 carries a stop which limits the movement of the diamond over the edge of the wheel M. The slide 2 and slide 6 are locked in adjusted position by a bolt 21 the head of which moves in a slot 23 parallel to the guide 4. In a modification the guides 8 and 4 may be perpendicular to each other.
Patent GB-1091638-A (GB)
Title: Improvements in or relating to pressure-sealing joints
Inventor: DREXLER FRITZ
IPC: B28B7/18
Filed: 1965-05-12
Abstract: 1,091,638. Pipe joints. F. DREXLER. May 12, 1965 [May 15, 1964], No. 19989/65. Heading F2G. A joint, e.g. between the ends of pipes, comprises a groove 10 and a co-operating tongue 2, the latter having a curved surface 1 which abuts the curved groove surface 3 to form a joint sealing line, and a surface 4, curved, Fig. 1, or flat, Fig. 7, which co-operates with a corresponding form of groove surface 5 to provide a pressure-receiving zone 6; the surfaces forming the zone 6 may be harder or softer than those forming the joint sealing line. There may be more than one pressure-receiving zone. The device may be used in spherical or conical joints.
Patent GB-412046-A (GB)
Title: Improvements relating to step-by-step mechanism
IPC: G05G5/02
Filed: 1933-07-15
Abstract: 412,046. Locking control levers. ELECTRICAL APPARATUS CO., Ltd., and PARTRIDGE, H. R. C., Vauxhall Works, South Lambeth Road, London. July 15, 1933, No. 20096. [Class 80 (iii).] Relates to mechanism for providing a step-by-step motion such as, for example, as is described in Specification 320,458, [Class 80 (iii)], and consists in an arrangement of parts by which the space required and the movement per cycle or step shall be as small as possible ; in particular, the single pawl is mounted so that it can oscillate in the plane of the rack and also rock in a plane at right angles to this. The rack comprises sets of teeth 5 and 8 shaped as shown and the pawl plate 11 is mounted on a pivot carried by a pivoted arm 13 slotted at 15 to engage the part to be operated such as an arm of an electric starter. The pawl 12 in meeting a tooth 8 is constrained to follow the path shown by the circles a, b ; it is then thrown against the part 7 of a tooth 5 by a coil spring 23 and stops there. If the operator eases the forward pressure on the carrier 13 or slightly withdraws it, the pawl follows the path c, c<1>, c2, c<3>, until arrested by the part 10 of a tooth 8. To allow the pawl to ride over the teeth on the return movement, the pivot 21, Fig. 3, of the plate 11 is made tapered, and a coil spring is interposed between a yoke 20 and the plate. The ends of the spring are located one on each side of projections 27, 28. Projection 27 is fixed to the rack, and projection 28 is on the plate 11, so that oscillations in the plane of the paper are resisted by the spring, which also resists rocking movements about the pivot. A single-acting arrangement in which the pawl does not pass below the neutral line n ... n is shown in Fig. 5. Here the teeth 32 have an arresting surface 33 and a bevel 34 which acts to form a passage for the pawl as it is rocked by the cam surfaces 9.
Patent GB-1512997-A (GB)
Title: Industrial type lead-acid battery with plastics separator
IPC: H01M50/417
Filed: 1975-05-13
Abstract: 1512997 Separators for lead acid batteries W R GRACE & CO 13 May 1975 [13 May 1974] 20159/75 Heading H1B A lead-acid battery comprises at least one microporous separator made of a synthetic plastics resin containing a mineral filler and an organic compound having hydrophobic and hydrophilic groups in its molecule, the compound being insouble in the battery electrolyte. The resin is preferably polyethylene containing silica as the mineral filler and the organic compound is preferably an adduct of an alkylphenol with ethylene oxide. The separators may be impregnated with the organic compound by immersing them in a hexane bath containing 3 % by weight of the compound. After immersion for about 10 seconds the separators are drained and dried at room temperature. Alternatively an emulsion containing the compound may be spread on the surface of the separator.
Patent GB-1207532-A (GB)
Title: Alkyl sulphide terminated oligomers of ethylenically unsaturated monomers
IPC: C08F36/04
Filed: 1967-05-02
Abstract: 1,207,532. Laminates. UNIROYAL Inc. 2 May, 1967 [5 May, 1966; 1 July, 1966 (2); 19 Oct., 1966], No. 20202/67. Heading B5N. [Also in Divisions B2 and C3] An adhesive composition for bonding textile fabrics to produce secondary backed carpets, e.g. bonding a jute backing to nylon tufted carpet, comprises a polymer latex obtained by emulsion polymerization using novel telomer emulsifiers (see Division C3). Polymer latexes exemplified are those of butadiene polymers and copolymers (e.g. with styrene, itaconic acid, acrylonitrile, ethyl acrylate, acrylic acid, methacrylic acid or methacrylamide), styrene - acrylonitrile, ethyl acrylate - itaconic acid, ethyl acrylate - styrene - itaconic acid, ethyl acrylate - butyl acrylate - itaconic acid copolymers and polystyrene. Additives may be included in the latexes, e.g. alkylated p-cresol (antioxidant), sodium hexametaphosphate, calcium carbonate, whiting, tetrapotassium pyrophosphate, polymerized sodium alkylnaphthalene sulphonate and sodium polyacrylate. In an example (Example XXX) laminating is effected at 260- 300 F.
Patent GB-880287-A (GB)
Title: Improvements in rotary pumps and motors
Inventor: GARDINER DUNCAN BUCHANAN
IPC: F01C21/08
Filed: 1958-06-25
Abstract: 880,287. Rotary pumps and motors. VICKERS Inc. June 25, 1958, No. 20281/58. Class 110 (2). In a rotary pump or motor of the outwardlysliding vane and multiple abutment type each vane 68 is provided with a milled slot having a reaction member 78 slidably disposed therein. The member 78 is subjected at 88 to discharge fluid fed to a chamber 93 and has a tapered tip 90 bearing against the base of the vane slot. The chambers 93 are fed with pressure fluid through passages 94 in a spring- and pressureloaded end-plate 38. Specification 689,220 is referred to.
Patent GB-1350565-A (GB)
Title: Truck tow conveyor switching apparatus
IPC: B61B10/04
Filed: 1972-05-02
Abstract: 1350565 Conveying system; points for underfloor conveyers FMC CORP 2 May 1972 [5 May 1971] 20335/72 Headings B7L and B7N In a tow-truck conveying system, in which each vehicle 22 is provided with siding address pins 39 each of which can be selectively lowered so that it engages a points operating reading head 40 in advance of the corresponding siding, the reading heads are provided with latch means to prevent inadvertent operation. Each reader head 40 is generally of hemispherical form and is mounted in a housing 51 with cover 52 through which the reader protrudes above the floor surface 25. A bracket 60 pivotally mounted in the housing supports the reader head on shaft 57 and a latch member 56 on shaft 59. The latch includes a stop bar 94 which normally engages and prevents anticlockwise (points operation) movement of the reader head until moved out of engagement by an address pin 39. This pin then enters pocket 62 of the head, rotates the head until depending arms 55 on the head again contact the stop bar 94. Final movement of the pin over the head is accommodated by pivoting of the bracket against the action of springs 61. The movement of the reader head is transmitted to the points by push-pull cable 44 which extends between the arms 55 and the outer end of a spring plate 107 which rotates the points 42. The points are returned from their siding-open to siding-closed position by engagement of a cam surface on the side of the points by the vehicle tow pin. A full siding detector, Fig. 15, includes a parallelogram linkage with arms 117, 118 which is mounted in the detector housing and urged by spring 123 to move detector element 116 into the siding path. A vehicle stopped at the detector (siding full) moves the arms counterclockwise about their pivots whereby a spring member 130 at the points mechanism is continuously compressed. A vehicle for the siding when passing over the reader still operates the points but these are immediately returned to the siding closed position by spring 130.
Patent GB-704520-A (GB)
Title: Improvements in and relating to machine tools
IPC: B23Q1/62
Filed: 1952-08-13
Abstract: 704,520. Milling, drilling and planing machine details. SOC. C. GAMBIN & CO., and MASSOT, P. Aug. 13, 1952 [Aug. 16, 1951], No. 20371/52. Class 83 (3). [Also in Group XXIII] A machine tool comprises a transverse carriage 4 supported by a horizontal slideway 3 on the machine bed 1, a vertically-adjustable carriage 11 on a slideway 10 on a column 8 and a third carriage 12 slidable on ways 16 on one of the first two carriages at right angles to them. The third carriage 12 is preferably, as shown, the work-table and the carriage 11 carries a vertical, horizontal or universal milling-head with a milling-cutter, drill or grinding-wheel or, alternatively, a planing-head. In order to increase the length of the slideways 3, 16, the carriage 4 is of T-shape, the leg of the T passing beneath the two support surfaces 17 for column 8 and the slideways 16 extending the full width of the arms 5. To avoid tilting of the carriage 4, downward extensions of the arms 5 enclose flanges 6 on the base and may be locked to them by clamping screws. The carriage 4 may alternatively be of cruciform shape, Fig. 7, in which case three or four support surfaces 17 may be provided for the column, or of H-shape, Fig. 8.
Patent GB-1385387-A (GB)
Title: Drum-type washing machines
IPC: D06F37/20
Filed: 1972-05-02
Abstract: 1385387 Washing machines SEIMENS AG 2 May 1972 [3 May 1971] 20425/72 Heading D1A An electric motor for driving a horizontal axis washing and/or centrifuging drum of a washing machine through a belt 5 and pulleys 4 and 6, is pivotally mounted about a pin 11, the axis of which is perpendicular to the plane through the rotational axes of the motor and drum and in a plane which is perpendicular to the motor axis and passes through the CG of the pivotal elements. The pulley 6 is of variable effective diameter controlled centrifugally or otherwise and the motor has two alternative speeds. A spring 14 tensions the belt 5. The position of the pin 11 permits the use of short lugs 10, 13 on the motor casing and tub 2.
Patent GB-1168101-A (GB)
Title: Improvements in Hatches with Coamings and Covers therefor
IPC: B63B19/19
Filed: 1966-05-09
Abstract: 1,168,101. Hatch covers. CARGO SPEED EQUIPMENT Ltd., and R. BALLANTYNE. 8 May, 1967 [9 May, 1966], No. 20432/66. Heading B7S. A hatch coaming 11 having folding hingedly connected hatch cover panels 1 to 6 is characterized in that the stowing end 10 of the coaming is of less height than the rest of the coaming, the panels when moved from the closed to the stowage position being so guided that the leading panel 1 assumes a vertical position at the rear of the stowage space with its lower end slightly above the deck and when the other panels fold concertina-wise their lower ends move over and beyond the end of the coaming of reduced height.
Patent GB-276648-A (GB)
Title: Improved method of and apparatus for conveying powdered or granular material
IPC: B65G53/00
Filed: 1927-08-04
Abstract: 276,648. Lanhoffer, I. E., and Lanhoffer, E. Aug. 24, 1926, [Convention date]. Addition to 260,221. Pneumatic conveyers.-Air is admitted to each of the chambers or compartments of the feeding device of the parent Specification through elements tightly pressed against one another and permitting the air under pressure to pass between them. Air is supplied through the conduit 24, flows between rings 23 through grooves or channels 25, and issues from the spaces or intervals 26 between two adjacent rings. The Specification as open to inspection under Sect. 91 (3) (a), comprises also a Form, Fig. 1, (Cancelled), in which the air issues in the direction of the arrows 13 from between spring leaves 10 which are held together by a screw 14. The leaves are provided with slots 15, Fig. 2 (Cancelled), into which open supply channels 16 leading from ports 12 in the 'supply pipe 11. In a modification the air is admitted between a number of discs pressed one against the other and pierced with holes disposed so that those of one disc are opposite solid areas of the adjacent ones. This subject-matter does not appear in the Specification as accepted.
Patent GB-834059-A (GB)
Title: Improvements in or relating to drinking trough arrangements in batteries housing livestock, particularly poultry
IPC: A01K31/17
Filed: 1957-06-29
Abstract: 834,059. Drinking appliances for animals. SHEPHERD & SONS Ltd. J., and SHEPHERD, W. Sept. 26, 1958 [June 29, 1957], No. 20617/57. Class 5( 2 ). In a livestock battery of the type comprising a drinking trough extending along each row of cages, an end section of each trough is displaceable in a vertical plane from an upwardly inclined position in which it serves to retain water in the trough, to a downwardly inclined position in which it allows the discharge of the water to a downpipe. Of the three troughs 10 12 and 14 shown in Fig. 1, 10 and 14 are made from a flexible synthetic resin and 12 from metal, the end section 12a of the latter being joined to the main portion of the trough by a resilient joint 12b. The free ends of the sections 10a, 12a and 14a of the troughs are fixed in apertures in a downpipe 17 which is capable of vertical displacement. The means by which the downpipe is displaced comprise a bracket 20 fixed to the downpipe and carrying a screw 21 which projects through a slot in a frame member 9 of the battery, together with a handle 26 pivoted at 27 and carrying a pin 25 engaging a slot in the bracket 20. By loosening the screw 21 and raising or lowering the handle 26, the downpipe may be moved vertically between the limits imposed by adjustable stops 23 and 24. Alternatively, the downpipe may be fixed and the end sections of the troughs extend freely into apertures formed in the pipe, the apertures being sufficiently large to permit the displacement of the trough sections by some independent mechanism. By varying the upward inclination of the portions 10a, 12a and 14a of the troughs the water level in the troughs may be regulated. Mention is made in the Specification of applying the invention to intermediate sections of the troughs.
Patent GB-652680-A (GB)
Title: Improvements in or relating to refrigeration
IPC: F25B1/053
Filed: 1947-07-30
Abstract: 652,680. Refrigerating. CARRIER CORPORATION. July 30, 1947, No. 20620. Convention date, Aug. 1, 1940. [Class 29] Compressed refrigerant ,gas admitted at 17 to a shell-and-tube condenser near the bottom is directed upwardly against the tube bundle 15 through which a cooling fluid is circulated, condensation taking place in the upper part of the shell and a shower of liquid refrigerant falling upon and wetting the tubes lower in the shell to form, in the lower part of the shell, a turbulent zone in which violent boiling takes place which removes superheat from the entering refrigerant gas. The upper part of the shell provides a quiet zone in which non-condensible gases collect and from which they may be automatically removed. The refrigerant from a centrifugal compressor entering the condenser at 17 passes to the tube bundle through a perforated sheet 18 and is deflected by a baffle 19 of non-ferrous material which is extended over the top of the inside surface of the shell to protect the shell from corrosion. Cooling water is admitted to the tubes 15 at the top and leaves at the bottom. An inclined plate 20 at the bottom of the condenser leads to a discharge pipe 21 connected to the evaporator (not shown). The tubes. 15 are finned and are enlarged where they pass through intermediate tube plates 24. To indicate the presence of non- condensible gases a gauge 26 is provided having two pointers, one indicating the total pressure in the condenser, transmitted by a pipe 29, and the other indicating the pressure of the same refrigerant free from non-condensible gases in a bulb 27 located either in the liquid refrigerant, as shown in Fig. 3, or in the outlet 28 for non-condensible gases, as shown in Fig. 2. A control 34 responsive to a predetermined difference in these pressures starts a motor 33 driving an evacuating pump 32 to withdraw the non-condensible gases, together with some refrigerant, through a pipe 31 and pass it to an air-cooled condenser 35. The condensed refrigerant and gases pass to a receiver 36 from which the gases are relieved though a valve 37 and the refr'igerant returned to the system through a pipe 39 under the control of a float valve 38. Specifications 647,900 and 647,901 are referred to.
Patent GB-206403-A (GB)
Abstract: 206,403. Chazard, D. Jan. 3, 1923. Stands or supports for vehicles.-Comprises a particular construction of stand for motor vehicles of the type in which the vehicle is run up inclined runways which overbalance into a horizontal position when the bar is in position thereon. In the present construction a substantially rectangular frame, pivoting about one corner, is fitted with rollers so that the complete apparatus can be moved about when loaded. In the illustrated form the unloaded stand takes up an inclined position with the outer ends of the dotted rails b resting on the ground. By winding in a cord m which passes from the vehicle round a pulley at the remote end of the appliance and back to the winch l, the vehicle is drawn up the inclined track until the appliance overbalances and rolls on the curved surface f<1> into the position illustrated. Pins e are then removed to allow the rails b to drop and form props as shown, the upper ends b<1> forming stops to prevent the vehicle running off. A hooked bar n prevents accidental displacement of the props. The appliance is fitted with rollers h for portabilitv when loaded, and is furnished also with detachable diagonal cross braces at its ends.
Patent GB-661820-A (GB)
Title: Method of cooking unprepared cereal and the container therefor
IPC: A47J36/02
Filed: 1949-08-09
Abstract: 661,820. Packing foodstuffs. ELLIS, J. S. Aug. 9, 1949, No. 20709/49. Class 94(i). [Also in Group VI] A pre-selected portion of cereal in a flexible and pervious closed container (bag) is cooked by immersion in hot liquid, and then served directly in the bag. The cloth or paper &c. bag is made by sewing the top edge to a perforated tearing strip 16, the back top edge being stitched at 15 above the perforation 19, 20, and the front top edge being stitched at 17 below the perforation, leaving a loose overhang 22 at the front. The perforations 19, 20 are in line with a central slit 18, from which tearing begins when 13, 16 are gripped while 22 is pulled away from them. The ends of the bag are also stitched at 12. In a simplification a thin paper bag 22 containing the cereal is closed by stitching around the sides and top, preferably with a single thread 24. After immersion and cooking in hot liquid the bag is removed and opened by pulling apart the thread ends 25, 26.