baber/WOPTO huggingface dataset:
Patent GB-1494159-A (GB)
Title: Oil damped piston
IPC: F02F3/00
Filed: 1976-04-13
Abstract: 1494159 Pistons CATERPILLAR TRACTOR CO 13 April 1976 [19 Sept 1975] 15050/76 Heading F2T  A piston assembly comprises a cylindrical piston body 14 with a crown 36, a cross-bore 32 for a wrist pin 30 and a skirt 42; a pair of axially-spaced rings 62, 64 located in annular grooves 60, the rings 62, 64 being of polymeric material, e.g. PTFE, projecting outwardly beyond the skirt 42 so as to define an annular lubricant receiving space 70 between them, each ring 62, 64 having a chamfered surface 66, 68 on the part of its projecting portion remote from the space 70. The embodiment shows a piston assembly used in an internal combustion engine where lubricant pressure in the space 70 relieves wear on the piston 14. Between the rings 62, 64, and the crown 36 is a pair of piston-rings 48, 52, including a scraper ring 52 with its groove 50 connected to the space 70 by bores 74 and 76. There is also provided a lubricant conduit 34 for splash lubrication.
Patent GB-435147-A (GB)
Title: Improvements in or relating to tables and like articles of furniture
Filed: 1934-05-22
Abstract: 435,147. Tables &c. DAVIES, F. W., 72, Beaumont Street, Liverpool. May 22, 1934, No. 15161. [Class 52 (iii)] A table or like article of furniture with separately hinged or pivoted legs comprises also hinged side rails, which engage with the sides of the legs and hold them erect. Fig. 1 shows the underside and Fig. 2 shows a section of a table comprising fixed end rails 10, 11 and side rails 13, 14 hinged to side bars 15. Legs 16-19, (those on the left are folded, and those on the right are erect,) are pivoted to the fixed end rails 10, 11 by means of brackets 20, 22, Fig. 6, connected by pivot bolts 21. When the legs are brought to an erect position, the side rails 13, 14 are moved to a position at right-angles to the table top, and fitted between the legs, to which they are secured by screws 26 in lugs 25 on D-shaped parts 24 attached to the rails 13, 14. To hold the legs in the folded position hook-like bars 29 are pivoted to the crossbar 31, the ends 30 engaging with apertures in the legs, or, if castors or their equivalent are fitted, with lugs at the sides of the legs.
Patent GB-991516-A (GB)
Title: Dimensional inspection bench for parts having cylindrical bodies
Inventor: BREBANT CHARLES
IPC: G01B5/10
Filed: 1963-04-17
Abstract: 991,516. Determining dimensions and shapes. COMMISSARIAT A L'ENERGIE ATOMIQUE. April 17, 1963 [April 27, 1962], No. 15165/63. Headings G1M and G1N. [Also in Division G6] Variations between the actual shape of a cylindrical body and the theoretical shape are determined using an inspection bench comprising a rotary support for the body, and a measuring head, the head and the support being relatively movable parallel to the rotary axis, the head including a feeler mounted for rotation about two mutually perpendicular axes lying in a plane which passes through a theoretical curve traced on the body, the feeler being arranged to follow the actual curve of the body, and means being provided to measure movements of the feeler about the two axes. The body, e.g. a finned nuclear fuel can, is mounted in chucks 22 for rotation by motor 30 under feeler 64. The feeler is carried on arm 62 mounted for rotation about axis 60 on roller bearings mounted in sleeve 70. A framework carrying sleeve 70 is mounted for rotation about axis 48 on a carriage which runs on roller tracks 34. The height of the carriage may be adjusted by micrometer screw 44 and movements of the carriage along tracks 34 are controlled by a rack-andpinion system. Movements of feeler 64 are measured by electrical goniometers responsive to movements about axes 48, 60, and longitudinal movement of the carriage is measured by selsyn devices driven by one of the rollers on which the carriage runs. The speed of rotation of the body and the speed of the carriage can be adjusted so that feeler 64 follows any predetermined contour, e.g. a helical path. Rotation of'the body may be recorded by a potentiometer. It is stated that the shape of a non-finned body may be checked by clamping the feeler against rotation about axis 60, and that the apparatus can then also be used as thickness comparator by clamping a flat plate between the chucks. The electrical recorders may be replaced by optical devices to obtain greater precision. The feeler may terminate in a roller or ball bearing.
Patent GB-1182274-A (GB)
Title: Extrusion Method and Apparatus
IPC: B29C48/385
Filed: 1967-04-03
Abstract: 1,182,274. Screw mixers. NYPEL Inc. 3 April, 1967 [29 July, 1966], No. 15184/67. Heading B1C. [Also in Division B5] Rods, tubes or core coatings of thermoplastic material plus an abrasive filler are made by plasticizing thermoplastic material using a first screw impeller and heater system 16, 18, forwarding the plasticized material to a second impeller and heating system 32, 36, where the filler is added from a vibrated hopper 42 to be thoroughly admixed with the plasticized material, and extruding the mix through a suitable die head 50. As shown the screw systems are at right angles to one another with screw 16 linked to screw 32 via a bearing 30, hopper 42 is provided with a vibrator 46, and the extrudate is in the form of rods 62. Screw 32 is capable of a higher output than screw 16. Both hoppers 22 and 42 may have a valve member such as (26) Fig. 2 (not shown), and the relative rates of feed therefrom may be controlled automatically. Thermoplastic materials specifically mentioned are nylon, polypropylene, polycarbonate, acetals, acrylics, polyethylene, polyurethane, PVC and combinations of nylon and polyester. Abrasive fillers mentioned are aluminium oxide, silicon carbide, diamond dust, ceramic or asbestos particles or chopped-glass fibres.
Patent GB-677337-A (GB)
Title: Improvements in or relating to sheet baking tins
IPC: A21B3/15
Filed: 1949-06-07
Abstract: 677,337. Making sheet baking-tins. BAKERY & CONFECTIONERY PRODUCTS Ltd., and OWEN, J. W. June 30, 1950 [June 7, 1949], No. 16189/49. Class 83 (ii). [Also in Group VI] A sheet baking-tin is made by inserting a square &c. sheet-iron plate 1 into slots in a polygonal, hollow frame 3 and welding e.g. at the corners of the plate 1.
Patent GB-355321-A (GB)
Title: Sharpening device for safety razor blades
IPC: B24D15/08
Filed: 1930-05-17
Abstract: 355,321. Stropping-apparatus. HATTERSLEY, J. M., ValprÚ, Ashburner Street, Manly, Sydney, Australia. May 17, 1930, No. 15259. [Class 60.] A device for sharpening razor blades consists of a polished concave surface of glass, china, porcelain, stone, &c., b on a block a, the blade d being pressed down by the finger to contact with a longitudinal rib c on the surface a and moved longitudinally but not t transversely over the surface. The surface b may be formed by two flat surfaces at an oblique angle, and may be formed at the bottom of a trough, in which water is placed during stropping, and the sides of which prevent any substantial transverse movement of the blade. Transverse movement also is prevented by the rib c. The device may be combined with two ash-tray portions i, Fig. 1, having recesses j for cigarettes, or may be combined with a shaving-mug k, Fig. 6, having recesses m to form ash-trays. The device may be used to set ordinary razors or safety razors with a single edge. The device also may be combined with the base of a shaving mirror stand.
Patent GB-1490318-A (GB)
Title: Process for the preparation of pure 1,8-dinitroanthraquinone
IPC: C09B1/00
Filed: 1976-04-14
Abstract: 1490318 Preparation of pure 1,8-dinitroanthraquinone BAYER AG 14 April 1976 [19 April 1975] 15273/76 Heading C2C The invention comprises a process for the separation of 1,8-dinitroanthraquinone from a mixture of dinitroanthraquinones which contains at least 70% wt. of 1,8 isomer in which the mixture is treated with a solvent which is an aromatic hydrocarbon which is monosubstituted or polysubstituted by halogen, a nitrile derived from an aliphatic or aromatic monocarboxylic acid or dicarboxylic acid or a cyclic sulphone at elevated temperature and cooled and the 1,8-isomer which separates is isolated.
Patent GB-959764-A (GB)
Title: Improvements relating to covers for manholes or ducts
IPC: E02D29/14
Filed: 1959-05-05
Abstract: 959,764. Releasable fastenings; manhole covers. J. P. HARRIS. June 1, 1960 [May 5, 1959; Oct. 27, 1959], Nos. 15291/59 and 36444/59. Headings E1G, E2A and E2B. A cover for manholes or ducts comprises a frame 2 and a closure plate 1 removably disposed in the frame, studs 3 having enlarged heads 4 projecting downwardly from the closure plate being arranged to engage with keyhole slots 5 in the frame as the plate 1 enters the frame and being arranged to interlock with the slots as sliding movement of the plate 1 relative to the frame 2 is effected, disengagement of the studs 3 from the slots being prevented by a removable retaining bar 10 located in a gap 9 between an edge of the plate 1 and the adjacent edge of the frame, the latter having closed pockets 7 beneath each slot for free movement of the studs 3. The bar 10 is locked in position by a butterfly bolt 11 passing through the bar and engaging a slot 13 in the frame; a closed pocket 12a is provided beneath the slot 13. The closed pockets 7 and 13 with grouting fangs 8 facilitate keying of the frames in concrete. The heads 4 of the studs 3 may be other than spherical, Fig. 6 (not shown), or the studs may be replaced by tongues engaging in corresponding slots in the frame, Fig. 5 (not shown). The closure plate may be held against movement by wedging action produced by the movement of the plate relative to the frame; for example, the keyhole slots 5 may be tapered so that the shanks of the studs 3 are wedged therebetween or the underside of the frame at the keyhole slots may be provided with cam surfaces for engagement by the heads 4. The retaining bar 10 may be spring loaded to assist removal thereof. A row or rows of closure plates assembled in a common frame may be retained by a common retaining member at one end only of the frame, Figs. 8 and 9 (not shown). Alternatively, retaining members may be provided at spaced intervals along the frame, e.g. by building the frame up of interconnected sections each containing three covers.
Patent GB-432143-A (GB)
Title: Manufacture of nitrogenous condensation products derived from phenols
IPC: C08G14/06
Filed: 1934-05-22
Abstract: Oxyamine bases in monomeric form or of low molecular weight containing active methylene groups are prepared by condensing hydroxyaryl compounds or ethers thereof which contain more than one active methylene group with aromatic amines, the condensation being interrupted preferably as soon as the product shows a diminution of solubility in alcohol and in any case as soon the product shows a diminution in solubility in acetone.  The products may be freed from impurities by treatment with inert gases or vapours such as steam preferably under reduced pressure. Suitable starting materials include methylol or chloromethyl derivatives of hydroxy-aryl compounds which may or may not contain alkyl or aryl substituent groups such as phenol, cresols, oxidiphenyls, iso-propyldioxydiphenyl or their alkyl, oxyalkyl or polyoxyalkylethers and amines such as aniline alkylanilines, aminobenzylaniline, diaminodiphenylmethane and benzidine.  In examples: (1) a solution of crude cresol in caustic soda is treated with formaldehyde and the product is treated with aniline monoethylaniline or dimethylaniline in the presence of hydrochloric acid; (2) an aqueous alkaline solution of polymethylol is treated with aniline; (5) polychloromethylenecresol (obtained by treating crude cresol with a mixture of formaldehyde and hydrochloric acid) is treated with aniline in the presence of sodium bicarbonate; (6) p-oxydiphenyl is dissolved in caustic soda, treated with formaldehyde and the product is treated with aniline in the presence of acetic acid; (7) the polymethylolcresol prepared according to claim 1 is etherified with dimethyl sulphate, treated with aniline in the presence of hydrochloric acid and further treated with formaldehyde; (8) iso-propyldiphenol is treated with formaldehyde in the presence of caustic soda and the product is condensed with benzidine in the presence of acetic acid; (9) the polymethylolcresols made according to example 1 are condensed with aminobenzylaniline in the presence of acetic acid.
Patent GB-721912-A (GB)
Title: Process for producing resilient fibers from polyethylene terephthalate
IPC: D01F6/62
Filed: 1952-06-18
Abstract: Polyethylene terephthalate fibres, especially those having a birefringence of 0.004 to 0.011, are drawn at 35 DEG  to 50 DEG  C. to at least 90 per cent of the highest possible draw ratio obtainable, while the fibres are wet with a hydroxylated non-solvent, and the drawn fibres are relaxed in a free-to-shrink condition at 90 DEG  to 200 DEG  C.  The hydroxylated non-solvent may be water, ethylene glycol or glycerol.  The polymer comprises at least 90 mols. per cent of polyethylene terephthalate but may include up to 10 mols. per cent of diethylene glycol, tetramethylene glycol, hexamethylene glycol, hexahydroterephthalic acid, dibenzoic acid, adipic acid, sebacid acid, azelaic acid, a naphthalic acid, 2,5 - dimethylterephthalic acid or bis - p - carboxyphenoxyethane; these materials may be added during the preparation of the polymer or they may be separately polymerized and subsequently melt-blended with the polymer.  After wetting with the non-solvent the fibre may be passed over heated rolls between which and further non-heated rolls the drawing is effected.  The yarn may be crimped and cut to staple length prior to relaxing.  Heating media for use in the relaxing stage include air, water, steam, or dilute nitric acid.  The polyethylene terephthalate yarns may be a multifilament product spun from a polymer of 0.5 to 0.7 intrinsic viscosity at 900 to 1800 yards per minute.  The intrinsic viscosity is determined according to a formula given in the Specification.  U.S.A. Specification 2,465,319 is referred to.
Patent GB-116444-A (GB)
Title: Improvements in Mail Bag Catchers.
Inventor: DAVIS CHARLES BLAKSLEY
IPC: B61K5/06
Filed: 1917-10-22
Abstract: 116,444. Davis, C. B. Oct. 22, 1917. Transferring articles from trains in motion. -Relates to mailbagcatchers of the type in which a catching or trap frame is held in a position projecting from the van by a trip device against the influence of a spring, which automatically swings the trap frame and bag inwardly when the trip device is struck by the mail bag. The trap frame consists of a substantially rectangular framework 1 converging at the front into a throat-piece 4 having an outwardly curved end, which is normally pressed against the side 3 of the van by a spring 23 connected to the trap frame and to the support on which the trap frame is hinged. The support consists of a vertical rod 5, which is adapted to hook on to one or other of two sets of castings 9<a> arranged on both sides of the doorway 2 and carries horizontal bars 6 on which the hinges 7 are formed. The trip device 9 is hinged to the trap frame at 10 and has pivoted to it a bar 15 fulcrumed at 17 to a link 18 pivoted to the support 5. A further link 19 connects the fulcrum 17 to the trap frame, and, in the set position of the trap frame indicated in dotted lines in Fig. 4, the fulcrum 17 lies to an extent limited by a lug 24<x> in advance of the line jointing the support 5 to the pivot of the link 19, the spring 23 maintaining the trap frame in this position. When the mail bag M enters the throatpiece 4 and strikes the trip 9, the bar 15 is pushed rearwards until the fulcrum 17 passes behind the line joining the support 5 and the pivot of the link 19, and the spring 23 then operates to close the trap frame against the van and to project the bag through the doorway 2.
Patent GB-185502-A (GB)
Title: Improved means for locking nuts
IPC: F16B39/10
Filed: 1921-06-03
Abstract: 185,502. Tattersall, S. G. June 3, 1921. Locking nuts. -A nut is locked to a bolt by means of a perforated spring clip a, the central portion of which engages a recess in the end of the bolt while the ends b are turned under the nut. 'The perforated portions of the spring clip are adapted to fit the profile of the nut. The recess in the end of the bolt may be replaced by a square &c. projection, and recesses may be provided in the nut to accommodate the ends b of the spring. A tommy bar f may be used for placing the ends b of the spring under the nut. Specification 925/13 is referred to.
Patent GB-987560-A (GB)
Title: Substituted alkoxy diphenylalkenes, and diphenylalkanes and preparation thereof
IPC: C07D295/092
Filed: 1961-06-09
Abstract: The invention comprises compounds of general formula <FORM:0987560/C2/1> in which one of R and R1 represents a group of formula -OCnH2nA, where A is a dialkylamino group (in which each alkyl group contains 1-4 C) or a monocyclic nitrogen-containing heterocyclic group which is linked through a nitrogen atom, n is 2, 3 or 4, the remaining R or R1 represents a hydrogen or halogen atom or a lower (1-4 C) alkyl or alkoxy group or a trifluoromethyl group, Y is an alkyl group having 2-15 carbon atoms, X and X1 are hydrogen or are absent so that a second bond is formed between the carbon atoms to which they are attached; and their acid addition salts; and their preparation by treating a ketone of formula <FORM:0987560/C2/2> when Z is R1-Phby reacting with Y-CH2-Mg-halogen or Y-CH2-alkali metal, and when Z is -CH2-Y by reacting with R1-Ph-Mg-haloge or R1-Ph-alkali metal, and hydrolysing the metal complex formed to form a compound of formula <FORM:0987560/C2/3> followed by dehydrating this by use of a mineral acid to form a compound I having X and X1 replaced by a double bond, and, if desired, reducing this by catalytic hydrogenation to form the corresponding compound I having X and X1 hydrogen. Pharmaceutical compositions are mentioned containing compounds of the invention for administration orally (tablets, capsules, suspensions, liquids) and by injection (solutions). The compounds block cholesterol formation and have endocrine activity.
Patent GB-1142633-A (GB)
Title: Improvements relating to topping up system for electric storage batteries
Inventor: AUSTIN ARTHUR
IPC: H01M50/618
Filed: 1965-04-12
Abstract: 1,142,633. Systems for topping-up accumulators. ELECTRIC POWER STORAGE Ltd. 11 July, 1966 [12 April, 1965], No. 15506/65. Heading H1B. The invention comprises a system for topping- up accumulators comprising a level control system in which liquid is supplied to each cell and flows into the cell until it reaches a predetermined level, when it overflows into a reservoir, the reservoir being fitted with means, e.g. a pump, for recycling the liquid via the level control system. The level control system may contain a float control valve but preferably comprises a filling and a venting tube, the latter having its lower end at a predetermined level. Liquid entering the cell fills it to this level and then rises up the vent tube and overflows. Such an arrangement is illustrated in Figs. 1 and 2. Cells 9 are joined in series, each cell having a liquid chamber 10 having an inlet 11 and an outlet 12 opening into it. When liquid is fed in at 11 it flows into the cell at 13 whilst air escapes through bell 17 and outlet 12. When the liquid level reaches the bottom of 17 an air lock is formed and liquid rises up 17 and eventually leaves at outlet 12. Liquid leaving the last cell flows into reservoir 22 and is driven by pump 23 into upper reservoir 30 and is then returned via needle valve 32 to the cells. Pipes 21 and 33 are vents and pipe 36 is an overflow. An additional standpipe may be present between the pump and the upper reservoir and if gas is evolved in the cells further standpipes may be between the cells. The pump may be mechanical, electromechanical or pneumatic. In another embodiment the pump 23 may be connected directly to the level control system without use of an upper reservoir. In this case the pump must be one incapable of exceeding the maximum pressure at which the cells will operate or a relief pressure valve must be present. The device may be used on a traction battery in which case the pump may be powered by the vehicle battery and may be automatically switched on when the batteries are charged, e.g. on moving a cover over the charging socket. The pump may be switched off automatically after a predetermined time, after delivering a predetermined volume of liquid, when the liquid in the upper reservoir reaches a predetermined level or when liquid is present or flowing in the overflow pipe.
Patent GB-213810-A (GB)
Title: Improvements in or relating to the manufacture of transparent paper
IPC: D21H21/26
Filed: 1923-06-14
Abstract: 213,810. Brumby, R. W., Howard, C., Mercer, J., and Brumby & Clarke, Ltd. June 14, 1923. Transparent paper. - In the manufacture of transparent material to be used for showing the contents of cartons or containers, glazed imitation parchment paper is coated on both sides with colourless oil varnish applied by rolls or otherwise. Either the paper or the varnish may be tinted to produce a suitably coloured product.
Patent GB-479326-A (GB)
Title: Improvements in or relating to travelling chain grates
IPC: F23H11/04
Filed: 1937-06-04
Abstract: 479,326. Travelling grates. INTERNATIONAL COMBUSTION, Ltd., and WRAY, J. W. June 4, 1937, No. 15530. [Class 51 (i)] In a travelling grate of the kind in which louvres or bars are pivotally supported at their ends in side members carried by endless chains, the gap or gaps in the grate surface formed between the ends of louvres in a row extending across the grate are displaced transversely of the grate with respect to the adjacent gap or gaps between the louvres in an adjacent row or rows and are in line with 'the gap or gaps in alternate rows. Figs. 1 and 2 show two arrangements of louvres or bars supported on travelling chains indicated at A, B, C unequally spaced. In the arrangement shown in Fig. 1, four different lengths of louvres are employed, the louvres 1, 4 having their upper portions extending at both ends beyond the centre lines of the chains, while the bars 2, 3 have their upper portions of less length than the distance between the chains. In the arrangement shown in Fig. 2, two different lengths of louvres are employed, the upper parts of the louvres extending beyond the centre lines of the chains at one end and extending to a distance short of the centre line of the chains at the other end. In a modification, one or both ends of the upper parts of the louvres extend vertically over the centre lines of the chains. Fig. 4 shows the adjacent ends of two louvres 5 in a row supported in the side member 7 secured to chains 8, the upper part of one louvre extending beyond its own pivot 6 and beyond the centre line of the supporting member 7, while the other louvre has its pivot 6 extending beyond the upper part.
Patent GB-231716-A (GB)
Title: Improvements in or relating to a method of and apparatus for continuously welding pipes
IPC: B23K11/06
Filed: 1924-06-27
Abstract: 231,716. Harmatta, J. June 27, 1924. Welding.-In a continuous process of electrically welding pipes, particularly those of small diameter, the welding current is conducted in the longitudinal direction of the seam from an electrode roller arranged outside the pipe and engaging the edges of the seam, to a pair of roller electrodes acting also as pressure rollers, so as to heat only the edges to be welded. The roller electrode 6 which engages the edges of the seam is connected to one pole of the circuit and the other pole of the circuit is connected to the pressure rollers 3, 4 and also if desired to a second roller electrode 2 and a sliding contact 10. A roller electrode 9 connected to the same pole as the electrode 6 may be also used to ensure a good contact between the welding rollers and the pipe when the pipe is dirty. The distance between the electrode 6 and the electrodes 2, 3, 4 may be adjustable.