baber/WOPTO huggingface dataset:
Patent GB-777358-A (GB)
Title: Improvements in machines for disintegrating vegetation
IPC: A01D33/06
Filed: 1954-08-13
Abstract: 777,358. Destroying weeds and potato-tops. TOMKINS, J. W. Nov. 1], 1955 [Aug. 13, 1954], No. 23646/54. Classes 6(1) and 6(3). A machine for disintegrating standing vegetation, such as weeds and potato-haulms, comprises a frame 3 mounted on the front of a tractor and carrying a transverse shaft 4 which is driven from a power take-off pulley 14 on the tractor and carries a series of transverselyspaced flails or chains 17, 18. The flails are in two parts, a radial fixed portion 17 and a loosely pivoted part 18 carrying shoes 19 ; the parts 18 are replaceable by chains. The flails are arranged helically around the shaft 4 and may be of different lengths so that their outer ends conform to the shape of a potato-ridge. The frame 3 includes a guard 6 and is pivoted, at 2, to a standard 8 fixed to the front of the tractor. A screw-adjustment 9, 10, 11, accessible to the tractor-driver, varies the working height of the flails, and the tension of the driving belt is correspondingly adjustable by a verticallyadjustable jockey-pulley 15.
Patent GB-1449708-A (GB)
Title: N4-acylarabinonucleosides and the preparation thereof
IPC: A61P31/04
Filed: 1974-05-28
Abstract: 1449708 N-Acyl-arabinofuranosylcylosines ASAHI KASEI KOGYO KK 28 May 1974 [30 May 1973] 23673/74 Heading C2C Novel compounds I in which R is C 3-22  aliphatic acyl or n-tetracosanoyl are prepared by reacting arabinofuranosyl. cylosine with the appropriate carboxylic acid anhydride in a mixed solvent consisting of a water-miscible solvent other than an alcohol together with at least one mole of water per equivalent of the acid anhydride. Compounds I control tumours and may be used in the form of injectable solutions. They are also fungicides and insecticides and form, with a wetting and dispersing agent, a composition which may be administered to plants or their surroundings.
Patent GB-355488-A (GB)
Title: Improvements in attache cases
IPC: A45C3/02
Filed: 1930-08-08
Abstract: 355,488. AttachÚ cases. SINCLAIR, R. A., 25, Holders Hill Gardens, Hendon, London. Aug. 8, 1930, No. 23748. [Class 133.] The lid of an attachÚ case is fitted with a folio comprising a front panel 5 attached to the lid on three edges by a gusset 6 and a closing flap 7, the lid of the case forming the rear side.
Patent GB-239066-A (GB)
Title: Improvements in electric intermittent switches
IPC: H01H61/06
Filed: 1924-10-08
Abstract: 239,066. Sturgess, F. W. Oct. 8, 1924. Thermal interrupters of the kind in which a heating-coil R wound round one leg of a substantially V-shaped member D causes a contact MC on the apex to move towards or away from a fixed contact FC are characterized by the member D being formed from a single strip bent to the required shape, instead of from two straight strips, riveted together at one end. Heating of the coil R either closes the contacts to short-circuit the coil, or if the coil R is on the other leg from that shown in the Figure, causes the contacts to separate and the circuit to be broken.
Patent GB-875062-A (GB)
Title: A new or improved shockproof spare lamp bulb case
IPC: B65D85/42
Filed: 1956-08-02
Abstract: 875,062. Cases for spare lamp bulbs. SEYMOUR, H. H. Nov. 4, 1957 [Aug. 2, 1956; July 25, 1957], Nos. 23825/56 and 23613/57. Class 18. A case for electric lamp bulbs, e.g. spare bulbs for vehicles, comprises an outer case 1 with a hinged or removable lid 4 and lined with a soft pneumatic or sponge, rubber material 3 which has dowels D, Fig. 1,-protruding through the case at the sides or bottom or through the lid to prevent the lining being pulled out when the bulb is removed and provide additional shock proofing externally of the outer case. The lid 4 is adjustable for different size bulbs by a U-shaped spring 5 the curved ends 7 of which engage either under the rim 8 for small bulbs or in a groove 10 for larger bulbs. The lid is lined with sponge rubber 9 and the cap 2 of the bulb is screwed into the sponge rubber 3. The casing holds a key or spare fuses at 11. Fig. 7 shows the rubber dowels 42 projecting through a casing 40 with a hinged lid 41 secured by a lock 30. The casing may be of dumb-bell shape carrying two bulbs or in two separable parts or mounted side by side and may have brackets for fitting it to a vehicle.
Patent GB-1399430-A (GB)
Title: Preloaded rolling bearing assembly
IPC: F16C19/18
Filed: 1973-05-18
Abstract: A preloaded anti-friction bearing assembly comprising coaxial relatively rotatable inner and outer races, a plurality of balls disposed in spaced relation between said inner and outer races, at least one of said races being radially segmented, said segments being axially displaced with respect to each other, at least one of said segments being preloaded by preloading means to thereby exert a preloading force against said balls, said preloading means including at least one substantially noncompressible, flowable, resilient ring.
Patent GB-1301057-A (GB)
Title: Releasable pipe coupling
IPC: F16L33/22
Filed: 1971-04-19
Abstract: 1301057 Pipe couplings FESTO-MASCHINENFABRIK GOTTLIEB STOLL 19 April 1971 [25 March 1970] 23850/71 Heading F2G A pipe or hose connector comprises a tubular member 1 formed with an annular bead 8 over which the end of a hose 3 may be pushed, the bead defining surfaces 7 and 9 of which surface 9 is the more steeply inclined to the axis of the connector, and a nut 2 threadedly engageable with the tubular member 1 and formed with a surface 11 for clamping the hose to surface 9. The hose 3 includes a rubber or plastics body 15 and a braided steel wire covering 16. Threads 6 permit the attachment of, for example, a metal pipe to the connector. Surfaces 11 and 9 may be parallel or inclined slightly to each other. Surfaces 11 and 9 may, alternatively, be partspherical and of substantially the same radius of curvature with their centres located on the connector axis and non-coincident. Surface 7 may be formed with annular grooves.
Patent GB-301961-A (GB)
Title: Improvements in and relating to hypodermic syringes
IPC: A61M5/24
Filed: 1927-09-10
Abstract: 301,961. Nevin, M. Sept. 10, 1927. Capsules.-An ampoule for use in a, hypodermic syringe is formed with a reduced extension, hermetically sealed and having a constriction preferably notched with a file at which the ampoule may easily be broken when required for use.
Patent GB-687219-A (GB)
Title: Improvements in or relating to electronic voltage stabilisers
Inventor: SOWERBY JAMES MCGREGOR
IPC: G05F1/52
Filed: 1950-09-29
Abstract: 687,219. Automatic voltage control systems. CINEMA-TELEVISION, Ltd. Sept. 28, 1951 [Sept.. 29, 1950], No. 23860/50. Class 38 (iv). In a voltage stabilizer of the type having a regulating valve in series with the load controlled by a valve which compairs the output voltage with a reference voltage, the comparison valve has a directly heated cathode supplied from the stabilized output of the circuit. The regulating valve 31 is controlled via a cathode coupled amplifier 25, 26 by the directly heated tetrode 17 to the control grid of which is applied the reference voltage across a gas discharge tube 20, whilst a portion of the output voltage, determined by the potential divider 18, 19, is applied to the cathode. The cathode filament current is substantially constant despite variation in the valve of resistor 18 since the action of the stabilizer ensures that the voltage across resistor 18 is substantially constant. Positive feed-back from the anode of valve 25 to valve 17 increases the gain of the system. In a modification, Fig. 3 (not shown), the cathode coupled amplifier is omitted.
Patent GB-1508906-A (GB)
Title: Method of and apparatus for controlling the composition of an air-fuel mixture produced for a multi-cylinder internal combustion engine
IPC: F02B1/06
Filed: 1975-06-04
Abstract: 1508906 Supplying IC engine cylinders with mixtures of different richness NISSAN MOTOR CO Ltd 4 June 1975 [13 June 1974] 24086/75 Heading F1B Air-fuel mixture richer than a predetermined (e.g. stoichiometric) value is supplied to one cylinder C 1  of an I.C. engine and air-fuel mixture leaner than the predetermined value is supplied to another cylinder C 4  of the engine and means are provided to switch the richer mixture to the other cylinder and the leaner mixture to the one cylinder. The switching may be done each time the engine starter switch is operated, after a predetermined period of time has elapsed or whenever the number of revolutions of the engine reaches a predetermined value or when engine temperature or load exceeds or falls below a predetermined value. In Fig. 1, a computer 34 responsive to the rate of air supply to the engine supplies signals to pulse generators 38, 40 which respectively generate narrow and wide pulses which are respectively fed via a switching relay 42 to injectors 26 associated with cylinders C 1 , C 2 , C3 and injectors associated with cylinders C4, C 5 , C6 to cause them to inject small and large quantities of fuel. When the relay is actuated the injectors associated with cylinders C 1 , C 2 , C 3  inject large quantities and those associated with cylinders C 4 , C 5 , C6 inject small quantities of fuel. In another embodiment Fig. 2 (not shown), the narrow pulses from pulse generator 38 and the wide pulses from pulse generator 40 are fed respectively to the injectors associated with cylinders C 1 , C 6  and C 2  to C 5  by way of switching relay 58 when either the temperature sensed in a reactor 20 is below a predetermined value or the load on the engine is below a predetermined value or both are below their respective predetermined values. When both are above their predetermined values, signals are provided by both comparator circuits 62, 64 to an AND gate logic circuit 60 which provides an output signal to actuate relay 58 so that when the thermal reactor 20 is hot enough to oxide exhaust gas constituents and the engine is operating at medium or high load the injectors associated with the cylinders C 1 , C6 inject a large amount of fuel whereas those associated with the cylinders C 2  to C 5  inject a small amount of fuel.
Patent GB-406664-A (GB)
Title: Improvements in or relating to methods of, and means for, controlling the printing exposure in the production of positive cinematograph films
IPC: G01J1/42
Filed: 1932-08-29
Abstract: 406,664. Photographic printing. HARRISON, G. B., 23, Roden Street, Ilford, Essex. Aug. 29, 1932, No. 24148. [Classes 98 (i) and 98 (ii).] For controlling the exposure when printing a film or controlling the re-exposure of a film in a reversal process, a record of the variations of density along the length of the film is made by exploring the film with a beam of light influencing a photo-electric cell, and making a record of the varying light actions thereon. In one arrangement the density record of a film 10, Fig. 1, is made by passing a sensitive film 17 over an exposure opening 20 having a masking shutter (or similar device) which is controlled in conformity with the light transmitted through the film 10 as it passes over an aperture 14. The transmitted light acts on a photo-electric cell 13 in circuit with a galvanometer (or other instrument) operatively connected to the shutter 21. Both films may be passed through an inscription printing box 28 and past a registering punch 29, both of which may be simultaneously operated by the operating handle 33. The density record 17 may be a comparatively short length of film. In printing the negative or re-exposing it in a reversal process, the printing illumination may be controlled by a cylindrical shutter of variable aperture operatively connected to a galvanometer in a circuit comprising a photo-electric cell acted upon by light transmitted through the density record. For continuous and automatic operation, the density record 17 may be passed from the machine of Fig. 1, through developing and finishing apparatus and directly to the control station in the printing or reversal apparatus. For the reversal process the density record is made from the first developed image before the bleaching out step. Infra red light is preferably used, the unexposed silver being transparent to these rays. An alternative method for making a variable density record consists in interposing a variable wedge or shutter 64, Fig. 3, between the lamp 60 and negative 10, and in manually adjusting the wedge so as to maintain a standard reading in the galvanometer 62 connected to the photo-electric cell 61, which is acted on by light transmitted through the wedge 64 and film 10. An amplifier 63 may be interposed if necessary. Thereby a marking pen 67 connected to the adjusting mechanism 66, 65 records on a paper-covered drum 68 the density variation, and this record is used to control the printing illumination (e.g. by means of a variable diaphragm) in the subsequent printing or reversal of the negative 10.
Patent GB-1388338-A (GB)
Title: Memory device
IPC: G11C11/155
Filed: 1973-05-22
Abstract: 1388338 Magnetic wire storage devices OKI ELECTRIC INDUSTRY CO Ltd 22 May 1973 24270/73 Heading H3B A magnetic wire memory matrix comprises four interconnected memory planes 2a-2d, Fig. 2, arranged in pairs on opposite sides of a support board 1, the members of each pair being separated by a magnetic keeper sheet 6 or 7. Fig. 2 shows the magnetic wire row windings 4a-4d of the planes which pass through insulated sleeves 3a-3d. The row windings of each pair are joined at the right hand side of Fig. 2, and the pairs are joined by a flexible connector 8 at the left side. The ends of the row windings are connected to terminal plates 9, 10, the former also being seen in Fig. 1. Hairpin word windings 5a and 5b, Fig. 1, are provided for planes 2a 2b, the similar windings for planes 2c and 2d not being visible. The word windings are orthogonal to the row windings and pass around them in insulated tunnels. Each winding 5a has both ends at the upper edge of Fig. 1, connected to terminals 13 au and 13 al; a matrix of diodes 14a acts as a selection matrix. The other words windings are similarly connected to diodes, and the terminals 13 au, 13 al, 13 bu, 13 bl &c. are interconnected in such a way as to allow X, Y selection with the diodes, Figs. 3A, 3B (not shown).
Patent GB-507228-A (GB)
Title: Improvements in and relating to light control cells
IPC: H04N5/74
Filed: 1937-09-06
Abstract: 507,228. Cathode-ray tubes. RADIOAKT.-GES. D. S. LOEWE. Sept. 6, 1937, No. 24292. Void. Convention date, Sept. 17, 1936. [Classes 39 (i) and 40 (iii)] The property possessed by quartz and other materials of rotating the plane of polarization of light when under electrostatic stress is utilized in television transmitters. In the arrangement shown in Fig. 1, a sheet 3 of quartz has a mosaic 4 on its face scanned by a cathode-ray modulated in accordance with the elements of the picture to be transmitted and a transparent electrode 5 on the other. A beam of light from a source 6 is rendered parallel by a lens 7 and passes through a polarizer 8, the sheet 5 and an analyser 9 and forms an image of the sheet on a screen 11. Fig. 3 shows an arrangement for utilizing a greater thickness of quartz. The light beam passes edgewise through a quartz sheet 14 having a series of emissive strips 15 on one side and an electrode 16 on the other. The strips 15 are scanned in one direction by a cathode-ray and the polarized light beam projected on to a screen 11 by a rotating mirror 17. The strips 15 may be discharged between the scans by photo-electric or secondary emission. A number of such sheets as 14, insulated by mica sheets 18, may be arranged in echelon as shown in Fig. 6, and either scanned simultaneously to give an increased effect, or used as a two-dimensioned screen. Rochelle salt may bo used as the polarizing material in which case it must be placed outside the tube. Fig. 8 shows an arrangement of this sort on the principle described with respect to Fig. 1. The mosaic 21 is formed on the end 20 of the tube, which may be of material having a high dielectric constant such as rutile. The Rochelle salt block 22 is arranged in a container 24 outside the tube and the beam of light reflected through it from a mirror 19 within the tube. It is stated that the invention is especially applicable to threecolour transmission, but the description is not clear.
Patent GB-970466-A (GB)
Title: Improvements in or relating to explosive cartridges
IPC: F42B8/04
Filed: 1963-06-19
Abstract: 970,466. Ammunition cartridges. AMP Inc. June 19, 1963 [July 2, 1962; Nov. 23, 1962], No. 24333/63. Heading F3A. [Also in Division B4] A propellent cartridge, primarily intended for use in cartridge - operated tools, comprises a case 2 and plug 5 made from extrudable plastics material such as polyethylene, the case being of constant internal diameter, closed at one end by a cap 3 and tapering externally to an opposite open end. In a second embodiment (Fig. 5, not shown), the case is provided with external longitudinal ribs which are tapered and extend from the cap 3 towards the open end for somewhat more than two-thirds the length of the case. The cartridge is fired as described in Specification 873,192 and after firing the plug 5 fuses to the case as described in Specification 872,626. Fig. 4 shows the breech 11 of a tool having a combustion chamber 10 suitably tapered to accommodate the cartridge. The general construction and operation of the tool is as described in Specifications 956,227 and 959,884.
Patent GB-800309-A (GB)
Title: Plasticized and heat and light stabilized polymeric compositions
IPC: C08K5/1515
Filed: 1956-08-09
Abstract: Vinyl halide polymers are plasticised and stabilized by incorporating therein an epoxide compound of the general formula <FORM:0800309/IV (a)/1> where R1 and R2 represent alkyl groups containing from 4 to 12 carbon atoms and the group (CnH2n-1O) an epoxy-alkyl group containing from 4 to 12 carbon atoms.  The polymer may be polyvinyl chloride, or a copolymer of vinyl chloride with vinylidene chloride, acrylonitrile, vinyl acetate or diisopropyl fumarate.  Specified epoxy compounds are di-2-ethylhexyl epoxypentylsuccinate, di-2-ethylhexyl epoxyheptylsuccinate, di-2-ethylhexyl epoxyhexylsuccinate, di-2-ethylhexyl epoxynonylsuccinate, decyl-2-ethylhexyl epoxyoctyl succinate, and di-decyl epoxyhexylsuccinate.  The epoxy compounds may be prepared by the process described in Specification 799,383, [Group IV (b)]. Conventional plasticisers and stabilizers, e.g. cadmium-barium compounds, may also be added.
Patent GB-1577295-A (GB)
Title: Coin return device
IPC: G07F9/04
Filed: 1978-05-30
Abstract: The device has the function of preventing fraudulent actions on coin-operated machines, especially the blockage of the coin-rejection channel through the extraction orifice (3). For this purpose, the coin-rejection container, which holds the coin tray (11) is covered by a flap (4). As soon as this flap (4) is pivoted in beyond that position in which its front side (6a) is level with the front limiting edge (11a) of the coin tray (11), the fall-in orifice (16) for the coins is covered by the rear side (7a) of the flap (4). <IMAGE>
Patent GB-811672-A (GB)
Title: Conveyor trucks
Inventor: RAYBOULD ERNEST HARRY
IPC: B61B10/04
Filed: 1956-08-10
Abstract: 811,672. Floor conveyers. NEW CONVEYOR CO. Ltd. July 25, 1957 [Aug. 10, 1956], No. 24520/56. Class 104 (2). A floor conveyer truck is propelled by an abutment 15 pivoted at 13 on the truck engaging an upward projection 11, on a driven chain and is retained in engagement by a catch-piece 20 pivoted at 14 on the truck engaging a plate 17 on the pivot 13, the catch-piece being disengaged from the plate 17 when an arm 22 on the pivot 14 strikes an obstruction. The plates 15 and 17 are welded at right-angles to a bush 16 on the pivot 13 between plates 12 on the truck, the plates being strengthened by a gusset 18 and being biased by a weight 19 or a spring so that the plate 15 normally hangs rearwardly of the vertical. The catch-piece 20 and arm 22 are secured to a bush 21 on the pivot 14 and are biased to engage the plate 17 and a cross-bar 23. The projections 11 extend through a slot in the floor or in a housing on the floor. Rollers on the truck are guided in the slot.
Patent GB-170563-A (GB)
Title: An improved manufacture of glass
IPC: C03C3/145
Filed: 1921-09-15
Abstract: 170,563. Westinghouse Lamp Co., (Assignees of Compton, A. H.). Oct. 16, 1920, [Convention date]. Production of metal.-Relates to the manufacture of glass which will resist the action of the vapours of alkali metals in vapour electric lamps. According to the invention, the glass does not contain silica and is composed of a fused mixture of boron oxide with one or more of the oxides of sodium, potassium, lithium, rubidium, caesium, aluminium, calcium, barium, strontium, or magnesium. A preferred mixture consists of sodium oxide 13 per cent, aluminum oxide 15 per cent, calcium oxide 12 per cent, boron oxide 60 per cent. Such glass is stated to withstand temperatures from 400 C. to 600 C. in sodium vapour lamps.
Patent GB-950958-A (GB)
Title: Improvements in or relating to adhesively securing copper bodies to other bodies
IPC: C23C22/74
Filed: 1960-07-14
Abstract: An adhesive comprises 80 parts by weight of copolymer (1:3) of acrylonitrile and butadiene, 100 parts by weight of cresolformaldehyde resin and 15 parts by weight of formic acid the mixture being dissolved in 800 parts by weight of methyl ethyl ketone.ALSO:In order to effect an adhesive bond between a copper body and another article a surface area of said copper body is covered with a layer which is the result of a reaction between the surface of the copper body and an organic nitrogen compound which splits off ammonia at an elevated temperature and is formed by decomposing said compound by heating while in contact with the surface area of the copper body.  The term "copper body" includes copper plated bodies and also bodies of alloys containing a substantial proportion of copper. Compounds used for treating the copper are urea, formamide and hexamethylenetetramine to which is added a wetting agent, e.g. triethanolamine or a sulphonic acid salt of an aliphatic hydrocarbon and an oxidizing agent, e.g. 0.5% ammonium persulphate.  In an example a copper sheet after moistening with the treatment solution is heated to a temperature of 140-160  DEG C. in a hot air furnace or by contact heating for 5 minutes.  The treated surface of the sheet is covered with a layer of adhesive consisting of 80 parts by weight of copolymer of acrylonitrile and butadiene, 100 parts by weight of cresolformaldehyde resin and 15 parts by weight of formic acid by dissolving this mixture in 800 parts by weight of methyl ethyl ketone and spreading it on the sheet.  The solvent is evaporated by heating at 130  DEG C. for 30 minutes.  The treated sheet is laid on top of a stack of sheets of paper impregnated with a hardenable condensate of the phenolaldehyde type.  The stack is transferred to a press and heated to 160  DEG C. under a pressure of 60 atmospheres for 30 minutes to bond the copper to the resin-impregnated paper laminate.