baber/WOPTO huggingface dataset:
Patent GB-220856-A (GB)
Title: Improvements in automatic safety devices for protecting low tension electric circuits
IPC: H02H3/02
Filed: 1923-11-15
Abstract: 220,856. Guiducci, I. Nov. 15, 1923. Protective arrange - ments. - A spark discharge lightning arrester is combined with circuit separating means operated by an explosive mixture when a highpotential line comes in contact w i t h a lowpotential line. An outside low-potential line is connected to a casing 1 in which is held frictionally inside and in electrical contact a casing 2 connected to the apparatus of a lighting, telephone or telegraph system. A unit, consisting of a glass tube, an explosive mixture 23, two electrodes 18, 19, an impedance 16 and two insulating discs 21, 22, is held inside the casing 2 by means of the disc 21. One end of the impedance 16 is connected to the outside lowpotential line through a bared wire 17 engaging the casing 2 and the other end is connected to the electrode 18. The electrode 19 is connected to an earthed screw 13 which carries the disc electrodes 10, 11 of the spark-discharge lightning arrester. The other electrodes of the gap are formed by a flange 6 adjacent to the electrode 10 and the portion of the casing 1 adjacent to the electrode 11. The electrodes 10, 11 are placed in air-tight chambers and are separated from the mica discs on each side of the disc 12 by means of insulators 15. When a lightning discharge strikes the outside lowpotential line the impedance 16 prevents this from passing across the electrodes 18, 19 and the high potential is discharged across the gaps between the casing 1 and the electrodes 10, 11. When a high-potential line comes, in contact with the low-potential line a spark occurs across the electrodes 18, 19 and explodes the mixture 23 to separate the casings 1 and 2, thereby breaking the connection between the outside line and the apparatus to be protected.
Patent GB-1591063-A (GB)
Title: Monoalkylation of dihydroxybenzenes
IPC: C07C231/12
Filed: 1977-07-11
Abstract: The monoalkylated dihydroxybenzenes conform to the formula: <IMAGE> where A is an optionally substituted branched or unbranched alkylene radical whose chain can be interrupted by oxygen or sulphur atoms, or is an aralkylene or alkenylene radical, Z is an electron-attracting group and B is hydrogen, a halogen atom or an alkyl or alkoxy radical. They are prepared by reacting an appropriate dihydroxybenzene in an alcoholic solvent and in the presence of approximately two equivalents of a base with an alkylating agent of the formula W-A-Z, where W is a halogen atom. The alkylating agent can even be alkali-sensitive. Good yields are obtained. The compounds of the formula I are useful as dye intermediates.
Patent GB-266054-A (GB)
Title: Improvements in or relating to selecting switches for use in telephone exchange systems
IPC: H01H63/24
Filed: 1925-11-17
Abstract: 266,054. Standard Telephones & Cables, Ltd., (Deakin, G.). Nov. 17, 1925. Selectors.-An attendant may set a powerdriven switch such as a sequence switch to any desired position by means of a handle 10 which brings a spring 9 into contact with a disc 6 to close a local circuit for the clutch magnet 2. When the handle is released, the clutch magnet remains energized over the notched centring disc 4 until the switch reaches the next position.
Patent GB-603857-A (GB)
Title: Improvements relating to glass panes for windows
IPC: E06B3/66
Filed: 1945-11-01
Abstract: 603,857. Double windows. STONE & CO., Ltd., J., and STICKLAND, F. S. Nov. 1, 1945, No. 29021. [Class 20(iii)] Each pane of a doublewindow consists of laminae 1 and 2 of glass separated by a lamina 3 of cellulosic or like material of slightly larger dimensions than the glass to form projecting edge portions 4. The panes are spaced apart by strips 6 of asbestos or other material possessing dehydrating properties. When assembled the projecting edge portions 4 of the intermediate laminae 3 are brought together and sealed, forming an enclosed space 7 between the panes. The material of the strip 6 absorbs any moisture which may be present in the sealed enclosure.
Patent GB-893818-A (GB)
Title: Means for coating the foliage of dicotyledonous weeds
Inventor: YOUNG DANIEL ARTHUR
IPC: A01N25/34
Filed: 1958-09-10
Abstract: A wax bar or stick is impregnated with an ester of 2,4-dichlorphenoxyacetic acid, 2,4,5-trichlorphenoxyacetic acid, 2-methyl-4-chlorophenoxyacetic acid or 2-methyl-4-chlorophenoxypropionic acid.  The wax is preferably a mixture of bright stock slack wax, paraffin wax and diesel oil; the slack wax may be replaced wholly or in part by a mixture of ceresin and lanolin.  Other additional ingredients comprise soaps or fats of vegetable or animal origin, resins or hydrogenated vegetable oil, wax-soluble dyestuffs and/or fertilizers.  The composition may be cast into a bar having a central rib of wood or metal.  In use it is pushed or pulled over the area of grass to be treated, a coating of wax and herbicide being deposited and selectively killing all broad-leaved weeds.
Patent GB-1378488-A (GB)
Title: Workpiece locating apparatus
IPC: F16C3/02
Filed: 1973-06-19
Abstract: 1378488 Conveyers for workpieces DORNIER SYSTEM GmbH 19 June 1973 [11 Aug 1972] 29088/73 Heading B8A Apparatus for conveying spherically-ended workpieces 12 to and from apparatus I for photographically marking the workpieces preparatory to etching spiral lubricating grooves therein comprises a conveyer belt 14 with holders 10 in which workpiece shafts 11 are a loose fit. The apparatus 1, which is stationary, includes a slotted support with ramps 2a, 2b and a central portion 2c has a frusto-conical bore 3. A lens 8<SP>1</SP> is mounted on the body 2 of the apparatus. In use, each workpiece, as it is conveyed in the direction V, is guided up ramps 2a, 2b until, when the conveyer stops, the workpiece is received in the bore 3 where it is accurately located. The optical exposure on the spherical portion of the workpiece having been made, the conveyer restarts and the workpiece, still in its holder 10, is guided out of the apparatus 1. A downward holding action is applied to the workpiece by a permanent magnet 13 in the holder 10; alternatively spring means may be used. In place of the conveyer belt, a turntable having workpiece-holding means on its periphery may be used.
Patent GB-672296-A (GB)
Title: New and improved table game apparatus
IPC: A63F7/06
Filed: 1949-11-14
Abstract: 672,296. Table games. TOOGOOD & JONES, Ltd., and McCLEMENTS, J. S. Nov. 14, 1950 [Nov. 14, 1949], No. 29123/49. Class 132 (ii). A table game simulating tennis comprises a surface marked out as a court and a projector 28 at each end having arms 32 presenting a concave front and pivoted on a member 35 slidably mounted on a transverse rod 26 so that the projector by means of a handle piece 38 can be moved across the whole width of the court and can project a ball or puck in any forward direction. A cord 53 tensioned by springs 54 is led around each half of the court and in its central part carries a plate 57 which can be moved by the player to intercept a ball which can pass under the cord 53. The court is marked out on a cloth tensioned on a frame 17, 18. In a modification (Fig. 5) at each end of a board 71, a spring projector 75 having a concave striker 78 can slide in a transverse slot 74. A net 73 is spaced from the board. Obstruction pieces 91 connected to levers 92 can be raised through slots in the board and may be spring returned. Alternatively the plates 91 can be hinged to the net.
Patent GB-1134141-A (GB)
Title: Process for the preparation of granular or crystallised products
IPC: A23K1/00
Filed: 1967-06-23
Abstract: 1,134,141. Animal food; powder agglomerates. WELVO N.V. 23 June, 1967 [24 June, 1966], No. 29191/67. Headings A2B and A2E. In the preparation of a granular product comprising skimmed milk powder and milk-fat substitutes e.g. water-soluble forage agglomerates, skimmed milk powder M is distributed by a screw conveyer 2 between an inner conduit 4 and an outer conduit 8 through a sleeve-valve system 3. Pumps 5, 9 associated with valves 18 and 19 blow air along these conduits into a treatment chamber 6 and then down a return conduit 15 to a cooler 14 for recirculation; the humidity of the air in the two conduits is adjusted by a metering device 17. Liquid fat is atomized into the central flow through a spray nozzle 22. In operation, the milk powder introduced into the central inlet flow is partially combined or agglomerated with the fat particles while they are still sticky and as these fall under gravity to the outlets 10, they combine with the milk powder introduced through the outer conduit. The outlets are associated with two conveyer belts 11 leading to bag-filling devices 12. The apparatus is claimed in Specification 1,134,142. An example is directed to the preparation of water-soluble agglomerates from a fat mixture composed of equal parts of coconut oil, palm-kernel oil and molten beef suit containing lecithin as an emulsifier, and skimmed milk powder enriched with antibiotics, hormones and vitamins. The fat amounted to 20% by weight of the powder. 60-70% of the milk powder was introduced through the inner conduit and the remainder through the outer conduit. Air temperature of -20‹C. or 2‹C. were employed.
Patent GB-1126644-A (GB)
Title: Method, apparatus and machinery for processing fish
Inventor: MOCKEL HANS
IPC: A23B4/06
Filed: 1966-06-29
Abstract: 1,126,644. Freezing fish. INSTITUT FUR HOCHSEEFISCHEREI und FISCHVERARBEITUNG. 29 June, 1966, No. 29193/66. Heading F4H. [Also in Division A2] In preparing and preserving fish for canning (see Division A2) fish are sealed and washed at 1, Fig. 1. Large fish are cut, at 2, into fillets, but small fish proceed without being so cut. The fillets or small fish are then formed at 4, e.g. in moulds, into portions 30, Fig. 5. The portions 30 are frozen at 5, e.g. in said moulds in a tray-type refrigerator, and then assembled, at 6, into collective assemblies 31, Fig. 6. These assemblies are stored frozen, preferably in a deep-freeze store, and are withdrawn from store, as required for breaking down into individual portions 30 and canning.
Patent GB-640951-A (GB)
Title: Improvements in or relating to telephone systems
Inventor: HUGHES JOHN
IPC: H04Q1/32
Filed: 1947-11-01
Abstract: 640,951. Automatic exchange systems. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd. Nov. 1, 1947, No. 29210. [Class 40 (iv)] A Stone type transmission bridge is arranged as shown in the Figure, so that operation of the changeover contacts d to reverse the potentials applied to the incoming speech leads has no effect on the potentials of the condenser plates connected to these leads.
Patent GB-683008-A (GB)
Title: Method and apparatus for vaporising a liquid constituent in the separation of gas mixtures
IPC: F17C9/02
Filed: 1950-11-29
Abstract: <PICT:0683008/III/1> An evaporator for obtaining substantially pure oxygen gas from liquid oxygen of 90 per cent purity (see Group XXVIII), comprises a bath C into which the liquid oxygen entering a duct A is forced by a pump P and having distribution tubes F with apertures G through which liquid passes to flow in film form down the inner walls of vaporizer tubes H mounted between plates D, I. Relatively warm nitrogen rich gas enters by a duct L, is baffled by plates M, and is discharged at a duct N in the liquid phase. Pure oxygen vapour leaves by valved ducts K, J and unvaporized liquid containing impurities is recirculated by the pump P.  The tubes H are between 3 and 15 meters long and between 10 and 40 millimeters in diameter.
Patent GB-1431995-A (GB)
Title: Model building elements
IPC: G09B25/04
Filed: 1973-06-20
Abstract: 1431995 Model buildings CELTIC INDUSTRIES Ltd & CO KG 20 June 1973 29253/73 Heading G5G A set of building elements for making scale models of buildings includes plate-like floor elements 1 wherein each side face of each element has a groove of L-shaped cross-section as shown in Fig. 2c, and tongue fillets 2 of U-shaped cross-section which can be received by the grooves of adjacent elements for connecting the latter together so as to form a floor or ceiling plate. The element 1 may be of plastics material and may be formed by upper and lower parts 14, 13 welded together. Semi-cylindrical recesses, or rabbets, are provided around the sides of the upper part 14 so that, when assembled, the floor elements 1 form a grid of holes, or of grooves which can receive other elements of the set. Such other elements include walls 4, 42, windows 7, doors (31) Fig. 7 (not shown), marginal fillets 3 and anchoring elements 8-11. The grooves in the elements 1 may be in the form of two letters L arranged back to back, thus defining a T, the fillet 2 then being of H section.
Patent GB-1144397-A (GB)
Title: Acrylyl hydroxamates and polymers thereof
IPC: D06M15/277
Filed: 1967-06-26
Abstract: 1,144,397. Hydroxamate derivatives. J. R. GEIGY A.G. 26 June, 1967 [27 June, 1966 (2)], No. 29370/67. Heading C2C. [Also in Divisions B2, C3 and D1] Novel perfluoroalkanoyl acryloyl hydroxamates of the formula wherein n is an integer from 1 to 18, R is a hydrogen atom or a C 1-6  alkyl group and R 1  is a hydrogen atom or a methyl group, are obtained (1) by condensing acryloyl or methacryloyl halides of the formula CH 2  = CR 1 COX, where X is a halogen atom, with perfluoroalkanoyl hydroxamates of the formula wherein M is a hydrogen atom or an atom of a Group I or Group IJ metal or (2) where R is a C 1-6  alkyl group, by alkylating the corresponding compounds in which R is a hydrogen atom. Homopolymers and copolymers (see Division C3) of these compounds are useful for rendering textile and other materials repellent to oil and water (see Divisions B2 and D1).
Patent GB-776296-A (GB)
Title: Improvements in and relating to parachute release or disreefing devices
Inventor: SPOWART HARRY THEOPHILE
IPC: B64D17/34
Filed: 1954-10-12
Abstract: 776,296. Parachutes. ENGLISH ELECTRIC CO., Ltd. Oct. 10, 1955 [Oct. 12, 1954], No. 29420/54. Class 4. A parachute releasing or disreefing device comprises a member 6 restraining the parachute from opening or fully opening, and adapted to be broken by the direct disruptive effect of a chemical explosive means 8. In Fig. 2 (not shown) the reefing cord 6 passes through a cylinder containing explosive which may be fired electrically.
Patent GB-715144-A (GB)
Title: Improvements in or relating to shaker conveyors
IPC: B65G23/00
Filed: 1951-12-17
Abstract: 715,144. Shaker conveyers. FLOTTMANN, F. H. Dec. 17, 1951 [Dec. 22, 1950], No. 29487/51 Class 78 (1) Shaker conveyer 1 has endless chain 2 lying along the bottom of it and drives the said chain during its forward movement. Thus, shaker trough 1 drives the endless chain through pawl and ratchet 9, pawl 10 preventing movement of the belt during the back movement of the trough and the chain being provided with crossbars 4. Alternatively, the drive may be by rack and pinion, or by pivoted projections or by fixed conical projections on the trough which co-act in the one direction with the chain. The shaker conveyer may be provided with side coverings.
Patent GB-261799-A (GB)
Title: Process and apparatus for coking coal
IPC: C10B57/08
Filed: 1926-06-19
Abstract: 261,799. Urbana Coke Corporation, (Assignees of Parr, S. W., and Layng, T. E.). July 30, 1925, [Convention date]. Retort furnaces; charging. - Apparatus for coking coal comprises an inclined preheating chamber 4 from which the fuel is delivered to a lagged bunker 5 formed at its lower end with hoppers 24, 25, 26 communicating through valves 24<1>, 25<1>, 26<1> with externally-heated vertical retorts 1, 2, 3. The chamber 4 contains a cylinder 15 through which the fuel is fed by a screw 19 and which is heated partly by a gas or oil burner 16 and partly by the waste retort gases which are supplied by a pipe 11 having branches 12, 13, 14. The bunker 5 and chamber 4 are provided with gas outlets 21, 23 respectively. The retorts 1. 2, 3 are heated by gas or oil burners 31, 32, which deliver into heating flues 33, the gases passing over baffles 30, down flues 34, and through ports 35 into the space 36 immediately surrounding the retorts. The fuel is supplied from a bin 38, Fig. 2, to a grinder 39 from which the pulverized charge is conveyed by a hoist 41 to the hopper 17 mounted on the upper end of the preheating chamber 4.
Patent GB-1045754-A (GB)
Title: Electromagnetically driven fluid pumps
IPC: H02K33/04
Filed: 1963-07-25
Abstract: 1,045,754. Diaphragm compressors. ROBERTSHAW CONTROLS CO. July 25, 1963 [Aug. 20, 1962], No. 29606/63. Heading F1N. [Also in Division H2] A pneumatic fluid pump as disclosed in Specification 968,777 is driven by a reciprocating motor (see Division H2): the claims relate to the driving motor.
Patent GB-676025-A (GB)
Title: Improvements in or relating to electrical lighting fixtures
IPC: F21V21/06
Filed: 1949-11-18
Abstract: 676,025. Supporting lamps. MAIMSTROM, C. O. Nov. 18, 1949, No. 29608/49. [A Specification was laid open to inspection under Sect. 91 of the Acts, May 25, 1950.] Class 75(iii) A unit for use with electric lighting fixtures comprises a cable-entrance socket 1 carrying a clamping device 5 for the conductor 19 which extends through the socket into a protective tube 2 provided with a lamp holder 11 or the like, means for attaching the unit to a fixture 10 being carried by the cable-entrance socket. The lower end of the rigid or flexible tube 2 is received in an externally threaded sleeve 9 which extends from the upper surface of the socket 1 and which carries a removable lock washer 16 and nut 3 for attaching the unit to the fixture 10. A bottom plate 14 of the fixture may be secured by a screw 7 threaded into a yoke 4 which is secured to the underside of the socket 1 and which partially encircles the conductor 19. The unit may be made of metal or plastic.
Patent GB-904715-A (GB)
Title: Improvements relating to hydraulic turbo couplings
IPC: F16D33/06
Filed: 1959-08-31
Abstract: 904,715. Hydraulic couplings. SINCLAIR, H. Aug. 11, 1960 [Aug. 31, 1959; June 1, 1960], Nos. 29704/59 and 19457/60. Class 69 (2). An hydraulic coupling comprises an impeller 1, a runner 2 within a casing 3 connected for rotation with the impeller, a container 4 located radially within the impeller and freely open towards the working chamber of the converter which is adapted for operation in a partially-filled condition, and means for establishing a flow of working liquid into and out of the working chamber derived from a source 10 external of the working chamber, the means including at least one passage 13 for the entry of liquid into the chamber in a region outside of the container and a liquid supply duct 11 through which liquid is fed from the external source to the passage from a region of lesser radius, referred to the coupling axis, then the radius of location of the passage. During operation, liquid from the working chamber is continuously discharged through ports 8 into a sump 9 from which it is fed by a pump 10 through ducts 11 into a compartment, formed by a member 12, and through the passages 13 into the chamber of the converter. It is stated that the continuous flow prevents aeration of the liquid in the working chamber when the converter is operating in the 20 to 40% slip range and prevents the reduction in torque that occurs in that range. In another embodiment, the casing encloses both the impeller and runner and the liquid supplied by the pump passes through passages to the inner periphery of the impeller and through the space between the impeller and casing to the outer periphery of the impeller. The working chamber of the converter is maintained at approximately full. This may be achieved by a non-adjustable scoop tube which rotates in a reservoir with one of the vaned members and returns liquid from a sump to the working chamber, or by supplying liquid from an external tank, the pump inlet being set at a predetermined position from the bottom of the tank; the tank may have a weir to control the flow to the pump.
Patent GB-979186-A (GB)
Title: Navigation light unit and system
IPC: B64D47/06
Filed: 1962-08-02
Abstract: 979,186. Aircraft lighting units. UNITED AIR LINES Inc. Aug. 2, 1962 [Aug. 2, 1961], No. 29718/62. Heading F4R. [Also in Division G3] A lighting unit particularly for use in the wing and tail lights of aircraft, comprises a light source and collimating means, which may be in the form of a sealed beam lamp, reflecting means for reflecting light from the source in a predetermined pattern generally transverse to the beam from the source and consisting of two generally cylindrical reflectors having a common directrix and so shaped and aligned as to reflect a forwardly directed light pattern, one surface reflecting light forwards adjacent a beam of light from the other surface. Means are provided for oscillating the lighting units. In the form shown, light from a sealed beam lamp 24 mounted in each wing and in the tail of an aircraft with the optical axis vertically downwards falls on mirrors 82, 84 mounted in spaced relation below the lamp. The mirrors 82, 84 are approximately part cylindrical with a common directrix. The mirror 82 extends from a point on the centre line of the light beam to the margin and the mirror 84 from the opposite margin to the centre line, the curvatures being chosen to provide a total spread of light 40 degrees above and below the horizontal. In addition, a small further mirror 102 is mounted on the back of the mirror 82 to reflect part of the light from the mirror 84 increasing the spread of light below the horizontal to 70 degrees. The mirrors are carried by a frame mounted on a vertical shaft 72 reciprocated by a gear segment 74 meshing with a gear segment 64 on a disc 62 reciprocated by an arm 58 driven by an arm on a shaft 50 rotated by a motor 40 through reduction gearing, so that the frame is reciprocated continuously through an angle of about 110 degrees. A steadily burning light is mounted adjacent each unit. The motors are driven directly from an A.C. source and the lights associated with the mirrors are fed through step-down auto-transformers which have two input tappings which can be selectively engaged by a switch arm controlled by a relay so as to produce a high intensity light and a dimmed light. The system is controlled by a three position switch for each light, the switches being operated by a single control. In addition, a dimming relay for the tail light is automatically operated when the retractable landing gear is extended and a dimming relay for the wing lights is automatically operated when the aeroplane is resting on the ground. The motors in the wings may be operated so as to ensure that the reflector units move towards and away from one another in synchronism.
Patent GB-1321483-A (GB)
Title: Rotary piston machines
IPC: F04C2/20
Filed: 1970-06-18
Abstract: 1321483 Rotary positive-displacement machines ATLAS COPCO A B 18 June 1970 [18 June 1969] 29750/70 Heading F1F The subject-matter of this Specification is identical with that described in Specification 1321482, but the claims are concerned with a machine having two single-toothed rotors coupled to each other by a gear transmission, one rotor controlling a high-pressure port, and each rotor being partially hollow such that it is statically and dynamically balanced.