baber/WOPTO huggingface dataset:
Patent GB-2462539-A (GB)
Title: Utility knife
Inventor: PRICE MARTIN CHARLES
IPC: B26B5/00
Filed: 2009-08-14
Abstract: A utility knife 10 includes a handle 12, a blade holder (14, figure 6), a spare blade carrier 16, a spare blade dispenser 18, and an actuator 20. The blade holder assembly holds a blade (30, figure 1) at a position of use at one end of the handle. The spare blade carrier is disposed in the handle and is configured to carry a plurality of spare blades. Movement of the actuator moves the blade dispenser to separate one of the spare blades from the rest and present it to the user. The knife may also comprise a lock (80, figure 25) moveable between a lock position in which the actuator is unable to move and an unlock position in which the actuator is able to move. The actuator preferably comprises a pivotal member connected to the handle and the spare blade carrier is preferably pivotally moveable relative to the handle.
Patent GB-314838-A (GB)
Title: Improvements in or relating to light sensitive cells
IPC: H01L31/08
Filed: 1928-04-03
Abstract: 314,838. Ruzicka, C. April 3, 1928. Light-sensitive cells.-A light-sensitive cell consists of powdered material, which may be compressed and subjected to heat treatment. The light-sensitive material may be of selenium, tellurium, phosphorus, uranium, thorium, boron, arsenic antimony, chromium, silicon, cobalt, bismuth, manganese, or tantalum either alone, or one or more in combination, preferably with selenium, and may be sensitized by heat treatment in a vacuum or in a suitable gas such as nitrogen, argon, helium, krypton or neon, or a mixture of these, either at, above, or below atmospheric pressure. For example, selenium and phosphorus may be heated from 200‹ C. to 400‹ C., and tellurium from 400‹ C. to 600‹ C. for a period varying from a few hours to several days, and slowly cooled for like varying periods in order to obtain the desired properties. Further, the material may be alloyed with 0.5 to 1 per cent of good electrically conducting metals such as silver or copper. The light-sensitive element may be moulded and compressed, or heat-treated as above to soften or partially melt it, into cylindrical form a, Figs. 6, 7, or concave or convex cylindrical form or into a flat or dished plate or disc, and is held in a casing b<1> which may be wholly or partly transparent and is preferably of fused silica. The sensitive element is provided with end contacts containing apertures at and joined to a lead x. The other lead x<1> is attached to a metallic cylinder c<1> bearing a metallic brush c attached to the sensitive element, though as alternatives contacts may be moulded into the element or the brush c may be replaced by carbon granules or the like. The cell is evacuated or filled with an inert gas and may be rendered more sensitive to certain wavelengths, e.g. the infra-red or ultra-violet, by different combinations of materials. According to the Provisional Specification at least two different sensitive materials should preferably be employed in a cell, arranged, for instance, in alternate laminae.
Patent GB-1075363-A (GB)
Title: Boring bar
IPC: B23B29/02
Filed: 1966-03-08
Abstract: 1,075,363. Boring bars. L. KUPFER-STUCKI, and P. KUPFER-JUNKER, [trading as L. & H. KUPFER & CO.]. March 8, 1966 [April 8, 1965], No. 10053/66. Heading B3C. A boring bar 1, Fig. 1, comprises a cutter 3 secured in a slot 2 by a screw 4, and a bush 6 for guiding the bar in a drilled hole in the workpiece, rotatable on the bar, and axially adjustable thereon, by a nut 7 screwed on to screw 4.
Patent GB-270273-A (GB)
Title: Improvements in or relating to radio transmission systems
IPC: H04H20/67
Filed: 1927-04-12
Abstract: 270,273. Lorenz Akt.-Ges., C. April 29, 1926, [Convention date]. Oscillation generators; relaying systems. - Constancy and uniformity of wave-length are maintained in the individual stations of a broadcasting system by transmitting thereto a basic or controlling frequency simultaneously from a central station. As shown in Fig. 1, a low-frequency current generated at the central station C operates synchronous motors m1, m2, m3 at the stations A1. A2, A3 which drive high-frequency generators h1, h2' h3 coupled to the transmitting aerials. The central-station machine may generate a high-frequency current, which is distributed over line-wires to the several stations, and there multiplied in frequency as desired. A valve generator may be used at the central station. and the oscillations radiated to the various signalling-station where they are amplified and utilized, with or without a step up in frequency. When there is no step-up in frequency, known means are provided for preventing reaction effects between the transmitting and receiving aerials at the signalling-stations.
Patent GB-352057-A (GB)
Title: Improvements in or relating to photoelectric cells
IPC: H01J40/06
Filed: 1930-03-29
Abstract: 352,057. Photo-electric cells. ELECTRICAL RESEARCH PRODUCTS, Inc., 195, Broadway, New York, U.S.A.- (Assignees of Stilwell, G. R. ; 1023, West 5th Street, Plainfield, New Jersey, U.S.A.) March 29, 1930, No. 10070. Convention date, April 18, 1929. [Class 39 (i).] A photo-electric cell has an electrode consisting of a layer of photo-electric conducting material such as alkali or alkaline-earth metal covered by a layer of dielectric material such as sulphurous material on which a second layer of photo-electric material is produced so as to increase the sensitivity, particularly to red light ; a second layer of dielectric material may be formed on the second layer of photo-electric material. Characteristic curves are given. As shown in the Figure, the cell 8 is connected through a tube 9 with evacuating apparatus comprising a pump 18, mercury-vapour pump 19, a bulb 20 for the introduction of inert gas, a McLeod pressure gauge 21, a liquid-air trap 22 and an ionization gauge 23, and through a U-tube 14 with a tube 15 containing dielectric material such as flowers of sulphur. A capsule 12 containing sodium is enclosed in a tube 11 connected through a bulb 24 with a distillation chamber 10 between the tube 9 and the cell. After evacuation, the sodium is heated so as to pass into the bulb 24 which is then sealed off from the tube 11. The sodium is then distilled through the chamber 12 and is deposited on the inner wall of the cell, a window being formed by means of a point flame. The sulphur is heated in the tube 15 and the amount introduced into the cell is determined by the reading on a galvanometer 27 when a voltage insufficient to produce a glow discharge is applied between the anode 7 and the cathode which is energized by light; the thickness of the sulphur layer is increased until no further change in the photoelectric current is produced, whereupon sodium is deposited until the current reaches a steady value. The second layer of sodium may be obtained by heating the cell around the edge of the window by a point flame. A second layer of sulphur may be deposited. Air or oxygen at atmospheric pressure may be admitted to the cell after the dielectric layer has been deposited, and the cell is evacuated before the application of the second photo-electric layer. In another cell, a coating of caesium on magnesium. is flashed in hydrogen to form hydride, and a film of caesium is formed on the hydride. Specifications 303,476, 306,996, 326,836, [all in Class 39 (i), Electric lamps, Arc &c.], and 352,012 are referred to.
Patent GB-711656-A (GB)
Title: Improvements in or relating to the recovery of phenols
IPC: C07C37/055
Filed: 1952-04-22
Abstract: Phenols are recovered from their solutions in caustic alkalis by neutralizing to form a phenolic phase and an aqueous phase of pH 8-11, contacting the aqueous phase in the presence of at least part of the liberated phenols with a solvent for the phenols which is not completely miscible with the aqueous phase and is more volatile than the phenols, separating the solvent from the aqueous phase and recovering phenols from the solvent.  The process is applicable to phenol itself, alkyl phenols and mixtures of such products.  In preferred conditions the phenolate solution is brought to pH 8.5-9.5 (e.g. 9) with carbon dioxide and the aqueous phase contacted with the solvent in the presence of 25-100 per cent of the liberated phenols. The separated phenolic phase may then be contacted with the solvent in the presence of a further aqueous phase which may contain a salt in solution, the two phases separated and at least a part of the phenols returned to the initial aqueous phase of pH 8-11 before contacting this with the solvent.  When a mixture of phenols is so obtained this may be fractionally distilled and the higher molecular weight fraction returned to the initial aqueous phase. The salts dissolved in the aqueous phase (preferably alkali carbonate or sulphate) are preferably present to the extent of 3-10 per cent by weight.  An example is given of the process using diisopropyl ether as extracting solvent, the starting material being a catalytically cracked petroleum distillate.  The solvent is preferably a slightly polar oxygen-containing substance having a B.Pt. 60-150 DEG  C. (various ethers, alcohols, and ketones are specified) or else an aromatic mono-nuclear hydrocarbon or a halogenated aliphatic hydrocarbon.  Suitable apparatus is shown.
Patent GB-175914-A (GB)
Title: Improved multiple cylinder engine
IPC: F01B13/06
Filed: 1921-04-06
Abstract: 175,914. McAlister, R. K. April 6, 1921. Rotary cylindrical valves.-In a radial revolving-cylinder with eccentric driving track, the distribution is effected by a central stationary valve 2 provided with inlet and exhaust passages controlled by an exterior hand-operated reversing- valve. The pistons 4 carry balls 9 housed in sockets 10 and secured by caps 11.
Patent GB-237355-A (GB)
Title: Improvements in or relating to hooks and like retaining devices
IPC: F16B45/00
Filed: 1924-04-26
Abstract: 237,355. Vickers, Ltd., and Lucas, O. D. April 26, 1924. Hooks for releasing bombs, couplings, &c. - A hook of the displa.ceable pivot type for use in dropping bombs &c. from aircraft, for railway couplings, or for use with cranes in hoisting loads &c., comprises a hook member B mounted within a housing composed of @e plates F, F, and a central spacing plate A. An arcuate slot b is provided in the body portion of the hook member B through which a displaceable fulcrum pin C passes, which is carried on a lever D pivoted at d. The side plates F, F, are cut away to provide for the movement of the. pin C and a bifurcated arm E which moves with the lever D. Recesses f are provided in the plates F, F, through which a ring or equivalent load supporting member is introduced. The member B can only rotate about a given axis x so that when the lever D is in the position shown, the hook is locked in the closed position. To open the hook the lever D is moved until the pin C is at the opposite end of the slot b, when the member B is free to rotate. The lever D cannot be replaced without previously closing the hook. The slot b need not be symmetrically disposed with respect to the pivot d.
Patent GB-521384-A (GB)
Title: Smoking pipes
IPC: A24F5/10
Filed: 1939-04-04
Abstract: 521,384. Tobacco pipes. FUHBMANN, W., and POWERS, T. F. April 4, 1939, No. 10475. Convention date, Aug. 10, 1938. [Class 130] A cover for the bowl of a tobacco pipe is pivoted to a member slidably mounted on the exterior wall of the bowl. As shown in Fig. 1, a pipe having a bowl 8 and a stem 10 of square or rectangular cross-section is provided with a bowl cover formed by a plate 13 which is hinged by a pin 23 to a plate 18 provided with a fingerpiece 28 and mounted on the wall of the bowl. The plate 18 has flanges 19 which slide in recesses 20 in the side walls of the bowl. One of the recesses is wider than the other and provided with pins 29 which engage with a projection 30 on the corresponding flange 19 to limit the movements of the plate 18. A spring urges the plate 13 towards the top of the bowl. In the position shown in dot and dash lines the plate 13 acts as a windshield to facilitate lighting of the tobacco. The plate 13 has a perforated raised portion 14 spaced from the wall of the bowl. In modified constructions (a) the cover has an extension which is folded over and spaced from the top of the plate 13 and (b) the plate 13 is spaced from the top of the bowl by flanged portions on its under surface.
Patent GB-935622-A (GB)
Title: Improvements in or relating to photographic exposure meters
IPC: G03B17/08
Filed: 1960-03-25
Abstract: 935,622. Measuring instruments. KODAK Ltd. March 25, 1960 [March 25, 1959], No. 10572/60. Class 37. [Also in Group XX] The moving coil of an exposure meter is provided with two pointers 4, 5 attached to opposite ends of the coil axle 1. A follow-up pointer 9 may be fitted coaxially with the axle.
Patent GB-1202654-A (GB)
Title: Improvements in or relating to time-controlled thermostats
Inventor: HILS SIEGBERT
IPC: G04C23/16
Filed: 1969-02-27
Abstract: 1,202,654. Clocks. D. GRASSLIN. Feb.27, 1969, No.10573/69. Heading G3T. [Also in Division H1] In a time-controlled thermostat, a separate night setting is obtained by adjustment of a cam plate 6, Fig. 4, on a 24-hour dial 5, the plate 6 having a contrasting colour to facilitate visual recognition of the night setting length. An hour hand 3 and minute hand 4 are also arranged in front of the 24-hour dial 5. Controls 55 are provided for setting the day and night temperatures.
Patent GB-591083-A (GB)
Title: Improvements in chain tensioning devices
IPC: F16H7/08
Filed: 1945-04-27
Abstract: 591,083. Chain gearing. ENFIELD CYCLE CO,. Ltd. NOSSITER, C. F., and HERBERT, E. P. April 27, 1945, No. 10595. Drawings to Specification. [Class 80 (i)] In a chain tensioning device there is interposed between a slipper shown in the Figure of Specification 591,082 bearing on the chain and an adjustable carrying arm, a pad of heat resisting rubber. The rubber pad is bonded to the slipper and a sheet metal carrier plate and the carrying arm, is preferably pivoted to the chain case.
Patent GB-1298045-A (GB)
Title: Industrial lift trucks
Inventor: COSBY HENRY LEROY
IPC: B60N2/38
Filed: 1971-04-21
Abstract: 1298045 Industrial trucks CLARK EQUIPMENT CO 21 April 1971 [5 May 1970] 10612/71 Headings B7B and B7H The subject-matter of this Specification is identical with that described in Specification 1,298,046 but the claims are concerned with an industrial truck comprising an operator's seat mounted above a compartment for a power source and connected to the truck on one side by a pivot and on the other side by releasable connecting means so that the seat can be swung outside the truck to enable access to the power source which may be an I.C. engine or battery.
Patent GB-330684-A (GB)
Title: Improvements relating to condenser tube and similar packing
IPC: F16J15/12
Filed: 1929-04-05
Abstract: 330,684. Crane Packing, Ltd., and Wilkinson, F. C. W. April 5, 1929. Packing, compound metallic and non-metallic.-A packing ring, which is especially applicable for condenser tubes, is made from fabric plaited from metal ribbon or wires 1 and cotton or other tape or threads 2, by superposing layers of the fabric, as by winding on a mandrel, and compressing the packing axially in a mould.
Patent GB-106987-A (GB)
IPC: B61F17/26
Abstract: 106,987. Murray, P. J. April 24, 1917. Alarms operated by fusible devices. - Air from the air-brake system is utilized to detect hot journals on railway vehicles. A nozzle 11 secured to the side of the axle-box 12 is connected by a pipe 10 to the air-brake system, and contains two fusible plugs 14, 15, which melt at different temperatures. When the journal becomes heated, the smaller plug 14 first melts and a jet of air plays upon the journal to cool it. The hissing sound of the issuing air serves as a detector. Upon further heating of the journal, the plug 15 melts and the escape of air is then sufficient to cause the brakes to be applied, stopping the train. In a modification, the softer plug 14 is placed in the centre of the plug 15.
Patent GB-931021-A (GB)
Title: Improvements in and relating to rail carrier plates for level crossings
IPC: E01C9/04
Filed: 1962-03-21
Abstract: 931,021. Road/rail crossings. STELCON A.G. March 21, 1962 [March 21, 1961], No. 10808/62. Class 107. A rail carrier plate 1 for bridging a level crossing projects on both sides of the track and has rail channels 2 of dovetail cross-section, the upper outer edge 9 of the channels being chamfered and the inner edges having a protective nosing 10. The base 8 of the channels is slightly downwardly inclined towards the centre of the track and carries levelling plates 7, preferably of poplar wood, against which the rails 6 are wedged by blocks 5. Filling material 11 is retained at the outer face of the end plates of a crossing by sheet metal plates (not shown). Vertical bores 4 are also filled. A gap of approximately 1 cm. between the plates 1 is fitted by a tarred rope 14. To enable the plates to be laid by a crane, bores 3 are provided to receive steel pins for attachment of crane cables.
Patent GB-109405-A (GB)
IPC: B65C3/10
Abstract: 109,405. Snell, C. D., and Beth Label & Wrapper Machines, Ltd. March 23, 1917. Coating-machines.-In a machine for labelling bottles &c. the rear end of the top label of a pile is glued by a finger 64 which is raised from a tank 61 by the pull of a cord 66 attached to a pulley on its pivot 63. The cord is pulled by a rod actuated by a crank-disk 69.
Patent GB-854434-A (GB)
Title: Improvements in and relating to gas governors
Inventor: BARNES HUGH VERNON
IPC: G05D16/06
Filed: 1958-04-08
Abstract: 854,434. Valves. RADIATION Ltd. April 8, 1959 [April 8, 1958], No. 11001/58. Class 135. A gas governor comprises a valve seat member 1 detachably secured by screws 3 and sealing washer 6 to a body 2 incorporating a gas conduit, e.g. a manifold or meter casing, a cover member 12 clamped to the seat member and sealing therebetween the rim of a flexible weight or spring-loaded diaphragm 10 associated with a valve 7 co-operating with the seat member, the body and seat member being formed with aligned openings 4, 5 for the flow of gas from the body to the governor and back into the body. A dust cap secured by a screw securing the cover and seat members covers a bleed hole in the cover member.
Patent GB-674540-A (GB)
Title: Collapsible cases
IPC: B65D6/16
Filed: 1950-05-04
Abstract: 674,540. Dismountable boxes. HYRESGASTERNAS SPARKASSE - OCH BYGGNADS-FORENINGARS RIKSFORBUND. U.P.A. May 4, 1950. [May 9, 1949]. No. 11034/50. Class 18. A dismountable box in which the six wall members are separable from each other has vertical edge battens 6 on opposite edges of the two end walls 2 and 2a, engaging grooves in battens 4 secured to the side walls 1, 1a, plates 7 attached to battens 8 secured to the end walls engaging the battens 4 and preventing the end walls from collapsing inwardly. The bottom wall is supported on battens 9 attached to the side walls and is located longitudinally by the battens 8. Battens 10, 11 may strengthen the top, side and bottom walls, those on the side walls together with the battens 8, locating the top wall. The top wall may be secured by steel strapping.
Patent GB-1430181-A (GB)
Title: Apparatus for use in the manufacture of electrical wire-cable
IPC: B65H59/38
Filed: 1973-03-07
Abstract: 1430181 Making electric wires KOBE STEEL Ltd and SUMITOMO ELECTRIC INDUSTRIES Ltd 7 March 1973 [7 March 1972] 11077/73 Heading B3A Apparatus for use in wire manufacturing to be positioned after a wire drawing machine 1 and before an extrusion coating arrangement comprises first means to heat the wire (e.g. a preheater 25 and a softening device 9, 10) means 35 to determine the tension of the wire leaving the first heating means, a second heater in the form of a re-heater 13, 14, a capstan 15, 17 and second tension determining means 37, the two tension determining means controlling the drives of the machine so that the tensions in the wire passing through the first and second heaters are maintained at predetermined values. Control of tension.-The wire which may be of hard copper passes over a capstan 3, through the heat treatment, and over a second capstan 15, 16. By means of a sheave 12 the wire supports a block 35 carrying weights (76, Fig. 7, not shown). If the tension is incorrect the block 35 slides up or down on guide rails 73, and by means of a cam 81 operates a detector (77) which controls the speed of the wire-drawing machine 1 and the capstan 3, independently of the speed of the capstan 15, 16. The tension during subsequent operations is similarly controlled by movement of a block 37 carrying weights (125, Fig. 10, not shown) or by movement of a lever (200, Fig. 13, not shown) acting against a spring (203). In either case any movement operates a detector (126) to control the speeds of the capstan 15, 16 and of preceding parts. Heat treatment.-The main heating takes place inside a casing 66 having chambers 67, 67<SP>1</SP>, chamber 67 containing an anti-oxidation agent, e.g. water vapour, water or inert gas and chamber 67<SP>1</SP> containing coolant, e.g. water. The front wall 65 of the casing 66 is hinged at 69. The wire is heated to softening point by current flowing from sheaves 8 to sheave 9. Connections to the sheaves are made through rotating rings (50, 59, Fig. 5, not shown) and brushes (54, 60). Current also flows from sheave 8 to sheave 4 to pre-heat the wire, the amount of pre-heating being adjusted by moving a guide roller 7 to change the length of wire between sheaves 4 and 8. The wire is re-heated by current flowing between sheaves 13 and 14. The second tension controlling device and the capstan 15, 16 are enclosed in a thermally insulating case 150 through which passes hot air from a blower (146, Fig. 10, not shown) and a heating element (148).
Patent GB-509008-A (GB)
Title: Improvements in the electrical heating of liquids
IPC: C03B5/027
Filed: 1939-04-12
Abstract: 509,008. Heating liquid baths by passage of current. SOC. ANON. DES MANUFACTURES DES GLACES ET PRODUITS CHIMIQUES DE' ST. - GOBAIN, CHAUNY, ET CIREY. April 12, 1939, No., 11090. Convention date, Aug. 5, 193A. [Class 39 (iii)] The electrode 3 of gas-perrneable material which is used in the heating of the liquid 2, has a hollow 4 connected with a pipe 6 which may be connected to an evacuating means, to a gas supply, or may be left open to the atmosphere. For molten glass, graphite may be used for the electrode. The electrode is left open to the atmosphere or is connected with evacuating means to prevent the excessive production of bubbles on its surface, whilst it is supplied with gas, inert to the electrode, when it is desired to produce bubbles of that gas in the liquid being heated.