baber/WOPTO huggingface dataset:
Patent GB-854496-A (GB)
Title: Improvements in railway freight car construction
IPC: B61D39/00
Filed: 1958-10-01
Abstract: 854,496. Vehicle doors. RHEINSTAHL SIEGENER EISENBAHNBEDARF A.G. Oct. 1, 1958 [Oct. 2, 1957; July 21, 1958], No. 31387/58. Addition to 831,355. Class 103(4). In a railway freight car according to the parent Specification upper girders 20, Fig. 12, of sliding door panels 19, 19a have front and rear rollers 47, 48 secured thereto which run on a single supporting rail 26 secured to the car frame. The actuating mechanism of each panel comprises a rotatable opening shaft 28 to which is secured a ball socket 63, Fig. 3, which receives towards the end of the closing movement a substantially spherical supporting roller 71 on an arm 69 at the bottom end of the front edge of each door panel, so that the panel is thereby guided in an arcuate path. 95, 'Fig. 4, into the closed position off the rail 26. Each socket 63 comprises a cupshaped recess 66 and in alignment therewith is a part-cylindrical recess 65 of lesser depth and having a guide strip 67 which engages in a channel-shaped recess 72 of the supporting roller 71. The bottom edges of the panels 19, 19a are constructed as strips 73 beneath girders 21 of the panels and in the closed position are in alignment with a guide strip 75 on the centre post 5 of the car frame. Hand-operated opening levers 79, Fig. 9, on the shafts 28 each includes a pivot 77 about which the lever is adapted to swivel vertically and each lever carries a projection 80 formed with an opening 81 through which a padlock can be secured. The panels have handles 82 secured on the girders 21 which support latch plates 83 having openings into which the projections 80 can be guided in the closed position. Transverse plates 85, connected to the panels, carry at their upper ends safety latches 87 which pivot at 86 to prevent unintentional opening of the lever 79. The single rail 26 is horizontally bent at both ends 52 of the car and has recesses 114, 115 at the point at which the front guide rollers 47 may be detached from the rail 26 when the panel is closed, the height of these recesses being such as to permit the introduction of the rollers 47 when one of the panels is to be opened. The panels are secured against running laterally off the rails by bearing blocks 103, Fig. 15, which have external and internal webs 104, 105 on both sides of the guide rollers. An extension 111, Fig. 13, of a guide clamp 110 on the upper end of each shaft 28 bears against a flange on the front edge of each panel or on a stop 112 thereon when the panels are closed to prevent inward deflection of the rollers. The rear rollers 48 are secured against derailment at the recesses 114, 115 and also enabled to pass the guide clamps 110 by spacing members 109 on horizontal projections 106 of the bearing blocks 103, since the distance of each member 109 from the bottom edge 118 of the rail 26 is made smaller than the distance between the roller 48 and the lower projecting end 116 of the web 104 even when this latter distance is reduced by the depth of the recess 114.
Patent GB-1393803-A (GB)
Title: Meltspinning of polyurethanes
IPC: D04B1/20
Filed: 1972-03-24
Abstract: 1393803 Polyurethane homofilaments MONSANTO CO 24 March 1972 [1 April 1971] 31417/74 Divided out of 1393801 Heading B5B A polyurethane homofilament is comprised of an aged polyurethane. The filaments may be made by preparing a melt-spinnable fibre-forming urethane polymer having a melting-point higher than 200‹ C. and below 235‹ C., ageing the polymer by storing it at less than 50‹ C. for at least four days, and melt-spinning the polymer to form a homo-filament. The polyurethane may be prepared from a polyester and a diisocyanate and the polyester component of the polyisocyanate may have a molecular weight of 800 to 3000. Preferably the polyurethane is resistant to acid dyes, and is aged by storing at least five days before spinning. In a preferred embodiment, the polyurethane is made by reacting together: (i) a polymeric glycol having a molecular weight between 800 and 3000, (ii) between 4À6 and 8À8 mols. of a diisocyanate per mol. of the polymeric glycol, wherein the diisocyanate if reacted with water yields a reaction product having a pH of at least 8, and (iii) sufficient low molecular weight glycol having a molecular weight less than 500 to provide an NCO/OH ratio between 1À01 and 1À04. The filaments are melt-spun and air-quenched in conventional manner, and a spin-finish is applied prior to wind-up. Drawing may be effected on conventional draw-twisters or drawwinders. The draw-twisting positions may be equipped with heated air tubes through which the filaments can be passed immediately below the draw zone prior to wind-up.
Patent GB-724062-A (GB)
Title: Improvements in and relating to hydraulic jacks
Inventor: NAGORSKI WITOLD
IPC: F15B11/024
Filed: 1952-12-11
Abstract: 724,062. Hydraulic jacks. STAMFORD METALLICS, Ltd. Dec. 9, 1953 [Dec. 11, 1952], No. 31445/52. Class 78(3 ). An hydraulic jack is provided with means to effect rapid movement of the lifting column under light load. When the jack is under a heavy load and fluid is pumped through the port 6 the pressure in chamber 30 rises sufficiently to move plunger 8, 9 to the right against the action of adjustable spring 14, so allowing the fluid in chamber 31 to exhaust into the reservoir 20 via conduit 21, plunger chamber 10, port 12, and conduit 19. When the jack is under light load the pressure in chamber 30 is insufficient to move the plunger 8, 9 and so exhaust the fluid from chamber 31, and since the pressure in chamber 31 is greater than the pressure in chamber 30 (due to the different effective areas above and below the piston 4) the valve 27 opens and allows fluid to pass from chamber 31 to chamber 30 so increasing the rate of operation of the piston. On the down stroke of the piston the chamber 31 is refilled from the reservoir via valve 25 and conduit 24. According to a modification (not shown) the valve 27 in the piston may be replaced by a conduit arranged externally of the cylinder; or formed in the wall thereof, and provided with a non-return valve. In a modification described in the Provisional Specification only the reservoir 20 may form an extension of the upper part of the cylinder.
Patent GB-1500563-A (GB)
Title: Impregnant for tyre cord
IPC: C08L21/00
Filed: 1975-07-28
Abstract: 1500563 Tyre cord impregnants OWENSCORNING FIBERGLAS CORP 28 July 1975 [5 Aug 1974] 31517/75 Heading C5W [Also in Division C3] A composition comprises a polymeric elastomer and an aqueous emulsion containing a paraffin wax and a microcrystalline wax as the dispersed phase. The composition may be used as a tyre cord impregnant. In the examples a wax emulsion is prepared from paraffin wax, microcrystalline wax, potassium hydroxide solution, oleic acid and deionized water and mixed with a vinylpyridinestyrene-butadiene terpolymer, ammonium hydroxide, a styrene-butadiene copolymer, water, sodium hydroxide, formaldehyde solution, a resorcinol-formaldehyde mixture and a thixotropic agent, e.g. a carboxyl-containing emulsion.
Patent GB-250140-A (GB)
Title: Automatic weighing-scale for weighing flour and other finely divided materials in bags or sacks
IPC: B65B1/32
Filed: 1925-12-15
Abstract: 250,140. Hallum, J. K., and Jakobsen, J. Aug. 10, 1925, [Convention date]. Automatic-feed weighers.-In an automatic weighing-machine for flour &c. the fulcrum of the beam is vertically movable against the action of springs and the movement of the beam under the weight of a bag shuts off the supply of material from the hopper. The material in the main hopper 2 is agitated by spiked shafts 3, 4 and a shaft 6 with spikes 7, 8 feeds the material from the lower hopper 5 past a main feed gate 11, pivoted at 10. As the bag 16 fills, the beam 20 moves bodily downwards until the stirrups 30 carrying the knifeedges 32 come to rest on angle-irons 31 secured to the machine frame. A hook 26 on the beam engages a lever 27 connected by a link 28 to the main gate 11 to close the gate. A dribblefeed continues through a hole in the gate 11 until the beam balances and a hook 33 then engages a lever 34 to close a second gate 14 through a link 35. The circuit of an electric motor 41 which drives the stirring and feeding shafts is broken at the operation of the second gate, a contact spring 38 on the gate 14 being removed from a contact strip 39. Sliding weights are provided on the beam. The bag 16 is secured to the hopper 15 carried by the beam by a ring 44 with clamping plates 45. A lazy tong arrangement operated by a treadle 22 prevents the scalepan 17 from swinging during the mounting and removal of the bags.
Patent GB-1063136-A (GB)
Title: Quantity regulating apparatus, more particularly for inking systems in printing machines
IPC: B41F31/04
Filed: 1964-08-04
Abstract: 1,063,136. Inking-apparatus. MASCHINENFABRIK AUGSBURG-NURNBERG A.G. Aug. 4, 1964 [Aug. 6, 1963], No. 31698/64. Heading B6C. Ink is supplied to a printing cylinder through nozzles supplied through a series of rotary vane pumps 1, Fig. 1, and each or all of the pump housings 2 are displaceable to adjust the ink supply, each by means of a push member 4<SP>1</SP> actuated through a roller 5 by an eccentric disc 3. The discs 3 are mounted on a shaft 6 and are adjustable together by rotation of the shaft or individually by adjusting pins 7 movable between abutments 8, 9 or by discs keyed to the shaft and each operatively connected to the shaft by a magnet 10, the magnets being selectively energized. Alternatively, the eccentric discs actuate push members (14), Fig, 2, and rods (16) acting through bell-cranks (17) on a duct blade (12) engaging a ductor roller (13).
Patent GB-338315-A (GB)
Title: Method of heat treating nitrogenised alloy steel articles
IPC: C23C8/80
Filed: 1929-10-18
Abstract: 338,315. Sergeson, R. Oct. 18, 1929. Drawings to Specification. Annealing; cementation.-Alloy steel articles which have been nitrogenized at about 460-560‹ C. for about 5-100 hours are reheated to a temperature between 590‹ C. and the lower critical point of the core material, preferably about 650‹ C., with a view to decreasing the brittleness and increasing the toughness of the case. An alloy steel containing 0.32 per cent of carbon, 0.56 per cent of manganese, 0.18 per cent of silicon, 1.43 per cent of chromium, 0.18 per cent of molybdenum, and 1.3 per cent of aluminium is referred to.
Patent GB-841830-A (GB)
Title: Modified polymers of acrylonitrile polymerized in the presence of preformed copolymers
Inventor: CAPPS DAVID BRIDGMAN
IPC: C08F271/00
Filed: 1956-10-18
Abstract: Graft copolymers are made by polymerizing a monomeric material consisting of acrylonitrile or a mixture of acrylonitrile with up to 15% of another mono-olefinic monomer in an aqueous solution of a preformed copolymer of from 25 to 75% of vinyl pyridine or a C1-C4 alkyl derivative thereof and 75 to 25% of acrylic acid in the presence of a water-soluble peroxy catalyst or an azo catalyst, and then separating the resulting graft copolymer, which is prepared so that it contains from 2 to 10% of the vinyl pyridine in polymeric form.  Monomers specified for use in conjunction with acrylonitrile are vinyl acetate, styrene and vinyl and vinylidene chlorides. Catalysts specified are the alkali metal and ammonium persulphates, perborates and percarbonates, which may be used in conjunction with alkali metal and ammonium bisulphites or sodium formaldehyde sulphoxylate, and azodiisobutyronitrile.  The polymerization may be carried out in the pressence of mercapto regulators such as tert-dodecylmercaptan and mercaptoacetic acid.  The graft copolymers may be dissolved in dimethylacetamide and from such solutions may be prepared films and fibres dyeable with acid dyestuffs.  The preparation is described of a copolymer of acrylic acid and 2-methyl-5-vinyl pyridine by a process involving the addition of the monomers to a heated aqueous medium with the simultaneous addition of potassium persulphate and sodium bisulphite.
Patent GB-757226-A (GB)
Title: Improved means for mounting a gudgeon pin in a piston
IPC: F16J1/18
Filed: 1953-11-17
Abstract: 757,226. Pistons. BRITISH PNEUMATIC TOOLS, Ltd. and WESCOMBE, H. C. Dec. 1, 1954 [Nov. 17, 1953], No. 31843/53. Class 122(1) The gudgeon pin 4 of a differential piston 1 of a two-stage air. compressor is mounted freely at each end in bored bosses 2 in the piston and axially restrained by discs 6 of greater diameter than the pin freely seated in a counter bore 5 in each boss and located by mechanical means, such as a spring ring 7 snapped in a groove 8. The discs 6 which may be of aluminium or bronze are pressed against their seatings by air pressure during operation of the compressor and act as seals to prevent leakage of air from the high pressure chamber to the inside of the pistons. Lubricating bores 3 are provided in the bosses 2.
Patent GB-310277-A (GB)
Title: Improvements in railway signalling devices
IPC: B61L1/20
Filed: 1928-02-01
Abstract: 310,277. Gabbitass, W. Feb. 1, 1928. Divided on 310,112. Signalling on trains; stopping trains independently of drivers.-Train carried apparatus is included in a circuit normally open at contacts 5, 6 which are closed by a spring 4 acting on a bell crank lever 2, 3 when a wheel 1 leaves the rail 7 due to excessive speed.
Patent GB-1066414-A (GB)
Title: Dispensing container
IPC: A45D8/18
Filed: 1965-07-27
Abstract: 1,066,414. Dispensing containers. R. M. LEEDY. July 27, 1965 [Aug. 24, 1964], No. 31941/65. Heading B8P. A dispensing container 5 houses a ring magnet 7 and an annular insert 9 having a smooth curved surface 10, the insert guiding the container contents, which maybe any magnetizable articles such as paper clips, pins, nails &c., to an opening 6 of the container and the magnet restraining the articles so that only one at a time may be manually removed. The dispensing container is made of heavy cardboard, plastics, wood &c. and the insert is made of plastics, wood, &c. The magnet may be permanent or a switch controlled electromagnet.
Patent GB-1097356-A (GB)
Title: Improvements in or relating to the anodising of aluminium or aluminium alloys
IPC: C25D11/14
Filed: 1966-07-15
Abstract: Uniformly coloured anodized aluminium and aluminium alloy articles are produced without dyeing by, after pickling, e.g. in caustic soda solution, and degreasing the article, anodically oxidizing it to form an oxide layer of thickness 2 to 10m  in a bath containing sulphuric and/or oxalic acid or a high throwing power electrolyte such as a chromic acid bath, thoroughly rinsing in water, and then effecting a second anodization in a bath comprising sulphate ions, e.g. provided as sulphuric acid, and one or more organic acids of the kind which cause formation of a coloured oxide layer, such as sulphosalicylic, sulphophthalic or maleic acid.  Examples are given of producing brown colours on two aluminium alloys containing respectively by weight 1.1% Mg, 0.25% Fe and 0.30% Si and 1% Mg, 0.3% Fe, 0.8% Si and 0.6% Mn, the first oxide layer being of thickness 6m  and the color anodized layer being of thickness of say 20m .
Patent GB-357820-A (GB)
Title: Improvements in or relating to apparatus for the manufacture of films or webs from cellulose products
IPC: B29D7/00
Filed: 1930-10-24
Abstract: Apparatus for making films.-In apparatus for the manufacture of films or webs from cellulose products, e.g. viscose, involving a large metallic roller rotating within metallic bearings in an acid &c. vat, the roller shafts or trunnions and other parts of the roller which are in contact with or in close proximity to metallic parts on the vat are coated with electrolytically insulating acid-proof material to avoid corrosion.  The coating may be of materials such as vulcanite, bakelite, glass or enamel and may extend over the whole roller.  As shown the roller 12 is supported within the vat 11 in bearing members 13, 14.  The member 14, at <PICT:0357820/IV/1> the drive end, consists of a bronze bushing 16 lined with high grade bronze 17 backed by packing rings 18 secured by a stuffing-box 19 and cap 20.  The roller spindle 22 is insulated from the bearing by a coating 23 of a soft vitreous smelt or enamel.  At the other end the roller is supported in a lead bushing 25, large enough to permit of withdrawal of the roller. The roller spindle 30 is supported in a lining or babbit 28 of high grade bronze and is insulated by peripheral and end layers 31, 35.  A hard lead cover 33 closes the bearing space.  Rubber packing rings 26 are interposed between the sides of the vat and the bushings.  By choosing suitable material, e.g. vulcanite or soft vitreous flux, smooth, highly-polished surfaces may be produced on the roller, the body of which may be made of steel instead of bronze.
Patent GB-442313-A (GB)
Title: Improvements in or relating to machinery guards or protectors
IPC: F16P1/02
Filed: 1934-11-08
Abstract: 442,313. Machinery guards. SNOW & CO., Ltd., and HOULDSWORTH, J., Stanley Street, Sheffield. Nov. 8, 1934, No. 32076. [Class 80 (iv)] Tubular guards enclosing a dangerous part such as a grinding wheel are made with a main section and a tubular extension adjustable axially, which parts engage by means of projections and helical slots so that rotation of the extension causes it to move axially with respect to the main guard. In the form shown, pins 24, 25 secured to the main, inner guard 11 pass through helical slots 22 in the outer tube 21, one of the pins being threaded and provided with a wing nut 26 for securing the parts together in adjusted position. Handles 27 may be fitted to the extension 21. A slot 20 may be made in the guard 11 to allow access to the tool in the interior. The invention is shown fitted to a grinding machine having a vertical shaft.
Patent GB-865254-A (GB)
Title: Improvements in and relating to hydrazine derivatives
Inventor: DRAIN DAVID JOHN
IPC: C07C57/145
Filed: 1958-10-08
Abstract: The invention comprises isopropyl-hydrazine maleate, oxanilate and p-ethoxyoxanilate.  The compounds are prepared by reaction of the hydrazine with the appropriate acid preferably in an organic solvent.ALSO:Preparations in dosage forms, e.g. tablets, contain one or more of the salts of isopropylhydrazine with maleic acid, oxanilic acid or p-ethoxy oxanilic acid, together with a diluent and/or binder.
Patent GB-1521961-A (GB)
Title: Manually operable control devices for alarm systems
IPC: H01H36/00
Filed: 1975-07-17
Abstract: 1521961 Magnetic switches CRESSALL MFG CO Ltd 17 July 1975 [20 July 1974] 32238/74 Heading H1N A manually operable alarm switch has a permanent magnet C mounted on a part B of a housing H arranged so that the part B is movable as by rupture of the housing along a groove G thereof and movement of the magnet C rotation to a reed contact unit E operates its contacts. The unit E is mounted on a non- magnetic panel D enclosing a sealed section R of the housing H. A second contact unit (not shown) may be provided. The operation of the contacts may be tested by the "external application" of a magnetic field in opposition to that of the magnet C.
Patent GB-891738-A (GB)
Title: Internal combustion engine of the liquid fuel injection compression ignition type
Inventor: HOLT GEORGE ALLEN
IPC: F02B23/06
Filed: 1959-09-22
Abstract: 891,738. Combustion chambers. RICARDO & CO. ENGINEERS (1927) Ltd. Sept. 21, 1960 [Sept. 22, 1959], No. 32268/59. Class 7(3). One or more cylindrical combustion chambers 10 formed in a piston of an engine in which the air rotates about the cylinder axis are inclined to the piston face so that the side of the chamber facing upstream is effectively undercut. The piston is shown formed with two recesses 10 with axes inclined in opposite directions so that the undercut sides 11 face upstream. The recesses are connected by a shallow slot 12 into which the tip of the injection nozzle 13 projects at top dead centre, the fuel being sprayed tangentially into the recesses on to the walls 14. In a modification a single recess is used. Specification 833,683 is referred to.
Patent GB-323852-A (GB)
Title: Improvements in or relating to needle receptacles for gramophone cabinets
IPC: G11B3/54
Filed: 1928-11-06
Abstract: 323,852. Hibbard, C. G. Nov. C, 1928. Attachments for storing needles.-A needle receptacle for gramophone cabinets comprises a plate b to which is fixed a widemouthed cup a for new needles, and a deep narrow tubular receptacle d for used needles which is detachably connected to the plate as by means of a screw d'. A cover e mounted in the lid of the cabinet serves to close both receptacles.
Patent GB-227613-A (GB)
Title: Improvements in earthing clips for wireless and electric conductors
IPC: H01Q1/48
Filed: 1923-12-28
Abstract: 227,613. Reid, L. H. Dec. 28, 1923. Earth-continuity complings.-An earthing wire or tape is connected to a pipe &c. by a clip shared to slip over the pipe and comprising one or more integral contact points, B, E projecting inwards. The clip may be made of plate spring A or spring wire D and carries a terminal U, F.
Patent GB-760459-A (GB)
Title: Improvements in or relating to wire fencing
IPC: E04H17/10
Filed: 1954-11-10
Abstract: 760,459. Fencing. CHOWN, W. R. Aug. 29, 1955 [Nov. 10, 1954], No. 32476/54. Class 45. A dropper for a wire fencing comprises two lengths 12 of stiff wire twisted in the form of two entwined helices. The lengths are joined at their ends 13, and the dropper may be formed by bending a single length of wire about its mid-point to form two halves which are formed as helices one entwined around the other. To fix the dropper the free ends of the lengths are placed about the uppermost wire strand, the dropper is screwed down over all the wire strands 11, and the dropper is bent over the lowermost wire strand. A notched spacing member 14 may be used to hold the strands in spaced relationship whilst the dropper is fixed.
Patent GB-1504013-A (GB)
Title: Manufacture of carriers for abrasive compositions
IPC: C09K3/14
Filed: 1975-08-04
Abstract: 1504013 Lubricants etc.; abrasive materials WINFIELD BROOKS CO Inc 4 Aug 1975 32546/75 Headings C5F and C4V [Also in Division C3] A boron-dialkylsilicone polymer is mixed with a gel formed from a hydrocarbon oil and a metallic soap of a fatty carboxylic acid of 8 to 22 carbon atoms. The polymer may be made by reacting a dialkylsilicone with a boron compound (e.g. pyroboric acid or boric anhydride) in the presence of a Lewis acid as catalyst and then destroying the catalyst by treatment with ammonia or ammonium carbonate. The metal of the soap may be Al, Be, Cd, Ca, Li, Mg or Zn, and the acid lauric, stearic, oleic, linoleic, linolenic, palmitic or behenic. The composition may be mixed with particles of abrasive grit to form an abrasive composition for honing, abrading or deburring a surface.
Patent GB-627036-A (GB)
Title: Broaching tools
IPC: B23D43/02
Filed: 1946-11-01
Abstract: 627,036. Planing-machine details. WEATHERLEY OILGEAR, Ltd., and POYNTER, C. E. Nov. 1, 1946, No. 32559. [Class 83 (iii)] A tool for surface broaching is provided with transverse channels, between adjacent cutting teeth, that diverge for the free egress of swarf. The teeth 7 are of truncated pyramidal form, the base of each channel being disposed approximately at right angles to the cutting face. In a modification, the teeth are pointed at the tips. In the case of a broach for making an entering cut, successive teeth project progressively further from the tool base in a vertical direction, and cut on the end and side 9 successive cuts being as indicated between the lines E and F, Fig. 9. Subsequent cutters in the same row cut on the side only as indicated between the lines F and G; G and H; H and S; and J and L. The tools are secured in rows to a tool-holder so as to be inclined to the direction of traverse thereof, and the cut of the last tooth indicated at the line L overlapping the cut of the first tooth in the next row by the distance between the lines L and K. In a modification, the tool axis lies parallel to the direction of traverse of the tool-holder and successive teeth of the tool project progressively further in a lateral direction.