baber/WOPTO huggingface dataset:
Patent GB-1093988-A (GB)
Title: Method of stabilizing polyoxymethylenes
IPC: C08G2/32
Filed: 1966-06-21
Abstract: Polyoxymethylenes are stabilized by esterification in the presence of a chain stabilizer which is selected from amides of mono- or polybasic acids, either substituted or unsubstituted; polyamides; poly - N - vinyl - lactams; triorganophosphines, stibines, arsines and bismuthines; and quaternary salts of ammonium and phosphonium.  The process is preferably carried out by mixing the polyoxymethylene, esterifying agent, and chain stabilizer, heating the mixture with agitation until the polymer is dissolved, keeping the polymer in its dissolved condition until esterification is complete, and precipitating the esterified polymer by cooling the solution. Removal of the chain stabilizers after esterification is not necessary.  Comparative examples are given of esterification without any additive, and with sodium acetate, 2-phenylisocyanate, or pyridine in place of the chain stabilizer.  The stabilized polymers may be mixed with an antioxidant.
Patent GB-791209-A (GB)
Title: Cartons
IPC: B65D5/02
Filed: 1956-09-11
Abstract: 791,209. Cartons. CELANESE CORPORATION OF AMERICA. Sept. 11, 1956 [Sept. 12, 1955], No. 27743/56. Class 18. A carton comprises a liner 10 enclosed by cover elements 15, 19, at least two sides of the liner having flaps adapted to be swung down to facilitate packing. The liner may be slit so that all four walls above the level of the element 15 fold down. Alternatively only two adjacent walls may fold down.
Patent GB-998616-A (GB)
Title: Detachable handle
IPC: A47J45/07
Filed: 1963-07-12
Abstract: 998,616. Handles for cooking vessels. J. W. SERIO. July 12, 1963 [July 13, 1962; Oct. 4, 1962], No. 27770/63. Heading A4A. A detachable handle, for easy engagement with an integral extension 11 of a casserole &c., comprises a body abutting one side of the extension and in which a pin 55 is supported for movement into and out of clamping engagement with a lip 13 on the extension by a cam face 76 on a rod 75<SP>1</SP> which is reciprocated longitudinalily of the heat-resistant plastic handgrip 19 by an adjustable finger knob 20. The pin 55 is slidably mounted in slots 50, 51 in a body-part 31, which has an aperture 62 receiving, and preventing rotation of, the flattened end 80 of the rod 75<SP>1</SP> and is spot-welded to a body-part 30 which has cheeks 35, 36 abutting the side of the casserole. The parts 30, 31 are clamped around an extension 22 of the handgrip 19 by a clip 70. Shoulder 81 on the rod 75<SP>1</SP> engages a wall 48 on the body-part 31 to limit forward movement of the rod. The knob 20 consists of a knurled body 85 of heat-resistant plastic retained in the handgrip by a split resilient ring 92 engaging an annular groove 93 and has a pin 96 engaging a thread 95 on the rod 75<SP>1</SP> to reciprocate the rod longitudinally when the knob is rotated. In modifications, a metal nut moulded in the plastic knob has a thread to engage threads on the end of the rod or, as shown in Figs. 12 and 15 the knob consists of an inner part 111 retained in the handgrip 19<SP>1</SP> by a splitring 117a and having a recess 123 with a pin 126 engaging a thread 125 in the rod and an outer end part 112 having ribs 130 engaging slots 131 in the part 111 on which it is longitudinally movable against the action of spring 136. The spring biasses the member 112 towards the handgrip 19<SP>1</SP> and longitudinal movement of the rod is possible only after the teeth have been disengaged by pulling the part 112 outward.
Patent GB-787643-A (GB)
Title: Lintels for wall openings
Inventor: SMITH HAROLD DESMOND
IPC: E04C3/02
Filed: 1954-09-27
Abstract: 787,643. Lintels. HOPE & SONS, Ltd., H. Dec. 7, 1955 [Sept. 27, 1954], No. 27802/54. Class 20(4) A lintel for an opening in a wall required to accommodate a window, or door, frame and which is adapted to support the underface of an outer wall part a of the masonry, comprises a sheet metal member which is bent to form a hollow stiffening rib c such that one face of the rib can serve as an abutment for the flanged edge of the window, or door, frame d and two flat parts b make contact with the under wall part a. The outer edge of the lintel may be bent down to form a weather shield e, the inner edge being shaped to provide a part which serves to effect the keying of a plaster layer g. The inner edge may be extended to form a pelmet h. The rib c, which may be incorporated as a separate part welded to the part b, can be stiffened by an insert i as shown. In a modification fig. 4, a part j can be bent up at right angles to extend into the masonry.
Patent GB-693123-A (GB)
Title: Improved wick for kerosene and like burners
IPC: F23D3/08
Filed: 1950-11-14
Abstract: 693,123. Wicks for liquid fuel burners. HICK. A. W. Sept. 7. 1951 [Nov. 14, 1950] No. 27806/50. Class 75(i) A metal wick for kerosene and like burners comprises fine metal fibres or particles 1, Fig. 2, e.g. steel wool, packed between walls 2, 3 formed by folding a sheet of fine perforated metal, e.g. monel metal gauze. The wick is first formed flat and may then be bent into an annular or other desired shape, one end 4, Fig. 4, being passed between the walls of the other end 5, or alternatively, the ends abut or overlap each orher and are fastened by clips or left unfastened. To facilitate bending, the wick may be corrugated vertically.
Patent GB-1520261-A (GB)
Title: Tripeptides containing proline and the use thereof in the quantitative determination of enzymes
IPC: C07K5/097
Filed: 1975-07-02
Abstract: 1520261 Determination of proteolytic enzyme PENTAPHARM AG 2 July 1975 [2 July 1974 9 May 1975] 27819/75 Heading G1B [Also in Divisions C2 and C3] A process for the quantitative determination of a proteolytic enzyme of class E.C.3.4.4. which splits peptide chains on the carboxyl side of arginine and lysine, except thrombin in mammal body fluids, or in vegetable or animal cell extracts or in glandular venoms of cold-blood animal comprises reacting the said body fluid, cell extract or glandular venom with a substrate which comprises a compound of Formula wherein R<SP>1</SP> is hydrogen, an acyl group, or a sulphonyl group; R<SP>2</SP> is an aromatic hydrocarbon group which is optionally substituted. X is a L-phenylalanyl, L-#-cyclohexylalanyl, L-C-phenylglycyl or L-tyrosyl group. Y is a protonated L-arginyl or protonated L-lysyl group. NHR<SP>2</SP> represent the residue of a chromogenic or fluorescent amine, R<SP>2</SP>NH 2  and measuring by photometric, spectrophotometric or fluorescence-photometric methods the quantity of the product R<SP>2</SP>NH 2  split off from the substrate as a result of the proteolytic action of the said enzymes on the said substrate. Preferred enzymes are plasma pre-kallikrein, and indirectly its activators, plasma kallikrein and indirectly its inhibitors, papain or prothrombin activators. Examples describe the determination of plasma kallikrein, plasmin, trypoin and thrombin.
Patent GB-662621-A (GB)
Title: Apparatus for dusting strip material
IPC: B29C37/00
Filed: 1949-10-31
Abstract: 662,621. Brushes. WINGFOOT CORPORATION. Oct. 31, 1949 [June 29, 1949], No. 2787/49. Class 19 [Also in Groups V, XVII, XXVIII and XXX] An apparatus for dusting powdered soapstone onto strip rubber comprises a chamber fitted with rollers for grinding the rubber therethrough and a dust dispersing bin above the chamber, a rotary tubular shaft directing the dust down onto a brush which forces the dust onto the rubber, and a second brush which removes excess dust. In a preferred embodiment the dust passes down a hollow shaft 41 to brushes 30 and onto triangular distributor plates 65. As the brush revolves the dust is thrown by centrifugal force onto a tube stock 3. Excess material not absorbed by the bristles falls onto plate 67 attached to the inner side of lower brushes 31 which dusts the lower side of the tube stock. A second group of brushes 76 and 77 (not shown) remove surplus dust. The brushes are all rotated by a series of belts.
Patent GB-1444504-A (GB)
Title: Quartz crystal vibrator
IPC: H03H9/215
Filed: 1974-06-24
Abstract: 1444504 Piezoelectric resonator SUWA SEIKOSHA KK 24 June 1974 [10 July 1973] 27946/74 Heading H1E Quartz piezoelectric tuning fork vibrator 8 for a wrist watch, based on an X cut with successive rotations α about X (electric) crystal axis of 0-10 degrees and Y=50-70 degrees in either direction about Y<SP>1</SP> axis. Electrodes 9, 10 coated on the upper surface and 11, 12 below, with connecting wires 15, 16, provide outward m-plane alternating driving fields (see Fig. 6) on each tine as opposed to the conventional fields normal to the plane, leading to a reduced dynamic impedance more suitable for watch applications. A support member (17, Fig. 7, not shown) made of ceramic, glass or preferably quartz to match the expansivity of the fork, carries conducting areas soldered or cemented to areas 13, 14 of electrodes 11, 12 and wired to corresponding upper electrodes 9, 10. Support member (17) is gapped between the conducting areas if sufficient insulation cannot be ensured. The support member may be part of a rectangular ceramic holder enclosing the fork, formed from a sandwich of a base, a rectangular frame integral with the support member with gold paste electrodes, and a second frame, all being sintered together from the semi-calcined state.
Patent GB-776794-A (GB)
Title: Improvements in or relating to gas/liquid contact devices
Inventor: MONROE ADAM GREGORY
IPC: B01J19/32
Filed: 1954-09-28
Abstract: 776,794. Contacting gases with liquids. BRITISH OXYGEN CO., Ltd. Sept. 27, 1955 [Sept. 28, 1954], No. 27969/54. Class 55 (2). A packing for a gas-liquid contacting device comprises a plurality of superimposed layers of elements formed by coiling about a central axis a corrugated ribbon of two thicknesses of woven wire gauze. The ribbon may be corrugated transversely and coiled helically about a central mandrel so that the width of the ribbon is normal to the axis of the mandrel. In Fig. 1 the packing consists of a single wire gauze ribbon passed through a pair of double helical gears of 45 degrees helix angle, doubled back upon itself and coiled about a central axis to form a flat unit of requisite diameter. The wire gauze ribbon may be 1 inch wide phosphor. bronze gauge, preferably of 100/100 mesh.
Patent GB-1303025-A (GB)
IPC: G01P15/13
Filed: 1971-06-15
Abstract: 1303025 Accelerometers SINGER CO 15 June 1971 [12 Nov 1970] 28053/71 Heading G1N A balanced force accelerometer comprising a movable plate 16, Fig.2, forming a differential capacitor with two fixed plates 30, 32 and restoring coils 28a, 28b co-operating with permanent magnets 34, 36 is provided with facilities for adjusting the sensitivity of the electromagnetic restoring system, and for adjusting the alignment of the movable plate relative to the fixed plates. The ferromagnetic circular plate 16 has a flange 18 round its circumference which is extended at one point by a rod 24 to attach the plate to the housing 10 via a necked portion 22 constituting a flexure hinge for the plate. The flange 18 carries the restoring coils 28a, 28b. Each face of the plate 16 is coated with an electrical conductor 50, 52, and each conductor faces a ferromagnetic disc 30, 32 forming the pole pieces of a magnet assembly comprising permanent magnet rings 34, 36 and cover plates 38, 40. Adjustable shunt paths for the magnetic flux are formed by screws 54, 56. The alignment of plate 16 relative to the pole pieces 30, 32 is adjustable by the position of magnets 66, 68, Fig. 3, carried by a screw member 64, relative to a magnet 62 carried by a further rod extension 18a from the flange 18. Acceleration in a direction perpendicular to the faces of plate 16 pivots the plate about hinge 22 and displaces the moving electrodes 50, 52 relative to fixed electrodes formed by pole pieces 30, 32. The differential capacitance change is used to vary the current through coils 28a, 28b to restore the plate to its central position. Changes in the working flux from magnets 34, 36 due to temperature variations are compensated by flux shunting sleeves 58, 60 made of a material whose permeability varies with temperature in an appropriate manner.
Patent GB-1213409-A (GB)
Title: Metalation of alkyl side chains of alkyl pyridines, alkyl quinolines and alkyl isoquinolines
IPC: C07D213/30
Filed: 1968-06-13
Abstract: 1,213,409. Metalating alkyl pyridines, quinolines and isoquinolines; alcohols. LITHIUM CORP. OF AMERICA. 13 June, 1968 [15 June, 1967], No. 28082/68. Heading C2C and C2J. Alkyl pyridines, alkyl quinoxalines and alkyl isoquinolines in which the alkyl groups have 1 to 16 carbon atoms are metallated using compounds of the formulae (1) to (6) where M is an alkali metal; R, R 1 , R 2  are each alkyl radicals with 1 to 5 carbon atoms, and R 3  is a hydrogen atom or an aralkyl radical. The reaction is effected in an inert solvent (e.g. benzene) and an ether to form an ether-metallopyridine, quinoline or isoquinoline complex which can be isolated (see Example IV). In the examples, picolyllithium complexes are prepared from 2-methylpyridine and 4-methylpyridine. After reaction with benzophenone and hydrolytic working-up of the reaction product, 1,1-diphenyl-2-(2-pyridyl)-ethanol and 1,1-diphenyl-2-(4-pyridyl)-ethanol were produced respectively.
Patent GB-410156-A (GB)
Title: Improvements in or relating to fire extinguishers
IPC: A62C13/00
Filed: 1932-10-08
Abstract: 410,156. Fire-extinguishers- GRAHAM, H. B., 75, Victoria Street, London, and WARREN, S. F., 27, Lowick Road, Harrow, Middlesex. Oct. 8, 1932, Nos. 28107 and 33819. [Class 47 (ii).] A fire-extinguisher comprises a container for fire-extinguishing liquid, a capsule containing a gas under pressure, and a member one end of which is adapted to open a closure on the container and the other end to open a closure on the capsule, to allow the gas to pass into the container. The member is preferably a double-ended piercer adapted to perforate seals on the capsule and container. In the construction shown in Fig. 1, a container 1 for liquid, such as carbon tetrachloride, is provided with a hollow head 2 adapted to accommodate a capsule 5 of compressed carbon dioxide. The head has an aperture 9 closed at one end by a metal foil seal 10 and terminating at the other end in a recess 6 containing a slidably-mounted double-ended piercer 12. One end of the piercer is adapted to perforate the seal 10, the other end being adapted to perforate a seal on the capsule 5. The piercer operates when the capsule is struck by a plunger 8, a piercer 18 being at the same time brought into action to perforate a seal 17 closing a siphon tube 16. The piercer 12 is hollow to allow gas to reach the container and force the liquid out through the tube 16 and the nozzle 14. In a modification shown in Fig. 2, the seal 24 when broken allows the liquid to reach the nozzle 37 by a passage 36. Leakage of liquid past the piercer is prevented by a gland 35. The gland may be replaced by a flexible diaphragm clamped at its edges and secured at the centre to the piercer. In a further modification the seal closing the liquid container is adapted to be perforated by a multiple piercer, a central piercer allowing the gas to enter the container, and two other piercers making openings to facilitate the passage of the liquid to the discharge nozzle. In the construction shown in Fig. 5, the end 49 of the piercer which perforates the container seal 24 is conical and when operated seats in a hole 50 in a ring 53 whereby the liquid is compelled to discharge through a siphon tube 51. In a further construction shown in Fig. 6, the capsule 27 is stored in a cylinder within the container 1. The end 32 of the piercer, when operated to break the seal 24, fits tightly in a passage 57 and the liquid escapes by a siphon tube 58 and a tube 60 to the nozzle 37. The invention may be modified by the provision of spring-pressed ball valves instead of metal seals. In a further modification, the piercer may comprise two tubular telescopic portions adapted to be separated to effect the discharge of the liquid.
Patent GB-467630-A (GB)
Title: Improvements in or relating to internal combustion turbines
IPC: F02C7/00
Filed: 1936-10-16
Abstract: 467,630. Internal-combustion turbines. METTETAL, G. Oct. 16, 1936, No. 28110. [Class 110 (iii)] An internal-combustion turbine comprises a rotor 2 provided with a circular row of blades 3, a number of circularly arranged combustion chambers 4<a>, 4<b>, and a sleeve valve 5 between the blades and the chambers 4<a>, 4<b>. The fuel is supplied to the chambers 4<a>, 4<b> by a compressor 9 free on the rotor shaft 1 and provided with blades 10 which draw in air through ports 11 and fuel through jets 14, and force the mixture through ports 6 in the valve 5 when the ports o register with the ports 20 of the chambers. The combustion gases are delivered through ports 21 in the chambers when they register with the ports 7 on the valve 5, and after acting on the rotor blades 3, strike the oppositely arranged blades 8 on the valve and drive the valve in the opposite direction to the rotor. The compressor 9 is driven by the shaft 1 through gear train 16, 15, 12, and the shaft 1 is additionally driven by the valve through a toothed ring 18 on the valve driving the wheel 16 through a wheel 17.
Patent GB-1019748-A (GB)
Title: Environmental control system
IPC: F24F5/00
Filed: 1964-07-08
Abstract: 1,019,748. Refrigerating heating systems. UNITED AIRCRAFT CORPORATION. July 8, 1964 [July 9, 1963], No. 28131/64. Headings F4H and F4U. A heating or cooling system comprises a boiler 10, a turbine 14 driving a compressor 16, a condenser 18 and an evaporator 20 connected so that for cooling the turbine receives vapour from the boiler via valve 74 and line 76, exhausts it to the condenser through lines 78, 80, part of the liquid from the condenser is returned by a pump 24 to the boiler, the remaining liquid is supplied to the evaporator via an expansion valve 30 and vapour from the evaporator is forwarded to the compressor which discharges to the condenser. For heating, valve 74 is actuated to divert vapour from the boiler directly to the evaporator via line 210 and a valve 112 in the evaporator outlet line is positioned to return fluid from the evaporator to the boiler via line 214, valve 96 and pump 24. Valves 74, 96 and 112 are switched between their heating and cooling positions by a switch 200 and the system is controlled by a doublescale thermostat 40 controlling energization of a relay coil 44 which in turn controls a doublethrow switch 46, one contact of which is in a circuit 48 serving to control a gas valve 52 for the burner of boiler 10. Circuit 48 can be opened by a device 124 responsive to boiler temperature and by a turbine over-speed control 120, 122 which also closes valve 74 when a predetermined turbine speed is reached. The other contact of switch 46 is in a circuit 50 including a boiler liquid level sensor 60 which when closed permits the circuit to energize pump 24. Valve 74 is opened by a device 72 responsive to boiler pressure, the device 72 also serving to energize condenser and evaporator fans 104 and 100.
Patent GB-1326680-A (GB)
Title: High speed roller thrust bearing
IPC: F16C33/54
Filed: 1971-06-16
Abstract: 1326680 Bearings TORRINGTON CO 16 June 1971 [29 July 1970] 28147/71 Heading F2A A roller thrust bearing cage comprises a pair of axially-spaced annular members 2, 3 with peripheral lips 6, 9 inter-fitting in overlapping relationship, and rollers 12 with substantially flat ends located in angularly-spaced slots in the members, which slots extend radially outwardly sufficiently to allow the outer ends of the rollers to seat on the peripheral lip 9. During assembly, the members are locked together by means of bent-over portions 19, 20.
Patent GB-971756-A (GB)
Title: Grinding solids in liquid
Inventor: HUGHES WILLIAM
IPC: B01F27/93
Filed: 1961-08-03
Abstract: <PICT:0971756/C1/1> Titanium dioxide pigment is ground (see Divisions B1 and B2) in water by a grinding medium such as sand to improve its tinting strength and texture.  Preferably, the pigment is ground after having been calcined and dry milled.  The pigment is slurried in water and continuously fed through an inlet 3 into a vessel where it is ground by sand agitated by impellers 6.  The contents of the vessel rise at such a rate in the upper part that the sand settles out allowing the ground slurry to discharge at 9. The slurry fed to the vessel may contain 1.65% of sodium silicate. Specifications 679,552 and 900,050 are referred to.
Patent GB-1349291-A (GB)
Title: Cardfeeding device
IPC: G06K13/10
Filed: 1971-06-16
Abstract: 1349291 Feeding sheets HONEYWELL INFORMATION SYSTEMS ITALIA SpA 16 June 1971 [20 June 1970] 28319/71 Heading B8R A card feeding and aligning device separates cards in sequence from a pile, feeds them in a direction in the plane of the cards and perpendicular to one edge thereof to an aligned position, e.g. a position aligned with respect to card reading, punching or selecting apparatus and defined by a bar 45, a plate 44 and a lip 40 of a plate 12, and then feeds them from this position in a direction parallel to said edge along an aligned path, e.g. along the bar 45 and between plates 43, 44 to said apparatus, the device including continuously operable separating means, e.g. belts 2, means, e.g. a spring, for urging the pile towards said separating means, a masking element, e.g. a pivotable plate 13, for separating the pile from the separating means, and means for causing relative movement between the masking element and separating means to control separation. In response to a start signal, the masking element is retracted by linkage 22, 23, 25 moved by electromagnet 30 thus allowing belts 2 to project from apertures within the element and separate the leading card 5 of the pile downwardly where it is engaged by rollers 35, 36 and fed between plates 43, 44, its top edge, having left the rollers 35, 36, abutting plate 12 which causes the card to bend into contact with rubber coated rollers 42, which lightly urge it into the aligned position. The leading edge of the card, which has already activated a photo-electric device 48, 50 to return the masking element to its masking position now activates a photo-electric device 60, 61 causing roller 54 to pinch the card against roller 51 thus effecting feed along the aligned path. A control circuit, Fig. 3 (not shown), may use signals from the photo-electric devices and from detecting means indicating card passage through the reading apparatus, to control card separation. The masking element may be fixed and the separating means movable into and out of separating position.
Patent GB-1512696-A (GB)
Title: Camouflaged transmission of signals
IPC: H04K1/04
Filed: 1975-07-07
Abstract: 1512696 Scrambling systems SIEMENS AG 7 July 1975 [19 July 1974] 28486/75 Heading H4R A (speech) signal is scrambled by interchanging sub-bands according to a sequence determined by a generator Z1 controlled by a pulse sequence in the form of a cyclic variation in pulse repetition frequency (derived by multiplexing at M frequencies divided in FT1-FT8 from a carrier generator TV whose output is fed via switched interchange pattern circuits UE to frequency shift the signal sub-bands) the duration of each interchange being determined at Z2 from the same pulse sequence as employed for the interchange.
Patent GB-1123759-A (GB)
Title: Improvements in or relating to motor cars
IPC: B60R5/04
Filed: 1967-06-20
Abstract: 1,123,759. Vehicle bodies. J. HENRILABOURDETTE. 20 June, 1967 [22 June, 1966], No. 28507/67. Heading B7B. A vehicle extension comprises a panel 4 secured to a drop down boot lid and carrying in hinged sequence panels 6, 7, 9 and fold-in panels 5. Extension panels 8 hinged to the panels 5 are apertured at 11 to engage pins 12 on the vehicle body and stays 10 may also be provided to support the extension. An arrangement is described for use with a vehicle having a two-part horizontally hinged door.