baber/WOPTO huggingface dataset:
Patent GB-1059350-A (GB)
Title: Process for the preparation of 4'-nitrodiphenyl-4-carboxylic acid
IPC: C07C205/45
Filed: 1966-01-03
Abstract: The title compound is made by acylating Ph-Ph with a possibly halogenated acetyl halide and dry AlCl3 in PhNO2, nitrating the AlCl3-complex with conc.  HNO3 in the same medium in presence of free AlCl3, decomposing the complex with water and oxidizing the acylnitrodiphenyl, e.g. with aqueous alkali hypochlorite.
Patent GB-1376242-A (GB)
Title: Rotary internal combustion engine
IPC: F01C11/00
Filed: 1972-01-03
Abstract: 1376242 Rotary positive - displacement engines K D SAUDER 3 Jan 1972 [6 Jan 1971] 135/72 Heading F1F An I.C. engine comprises pairs of intermeshing helically-fluted rotors 16, 18, 28, 34, 36, 38, 64 on common shafts 47, 49 in a casing 10 with a cooling jacket 14. Combustible mixture drawn through an intake 52 is compressed by the rotors until reaching spark-plugs 54, 56, the expanding combustion products effecting rotation of the rotors until discharged at an outlet 78. To minimize atmospheric pollution secondary air compressed by the rotor pair 64 is injected into the combustion products through a conduit 76. A second embodiment, Fig. 3 (not shown) differs chiefly in that the rotor pairs are disposed side by side instead of in tandem, are coupled by spur gears and have dissimilar diameters to accord with the pressures of the mixture or combustion products.
Patent GB-427909-A (GB)
Title: Improvements in and connected with machines for washing sand and the like
IPC: B03B5/68
Filed: 1934-01-03
Abstract: 427,909. Washing granular materials. PEEBLES, J., Waterworks Cottage, Dalrymple, and GLENFIELD & KENNEDY, Ltd., Kilmarnock, both in Ayrshire. Jan. 3, 1934, No. 189. [Class 82 (ii)] Material such as sand, gravel, &c., is washed by propelling it by means of a jet of water through a conduit which is immersed in water and provided with one or more openings spaced from the inlet end through which some of the surrounding water is induced into the conduit. In the sand-washing apparatus shown the sand is fed on to a screen 31 which is vibrated by a water turbine 32 and the fine particles fall into one end of a tank 1 which is V-shaped in cross section and divided into compartments 4, 5, 6 by partitions 2, 3. The sand sinking in the compartment 4 is propelled by a water jet issuing from a nozzle 8 in a supply pipe 7 up a conduit comprising three aligned tubes 11, 12, 13 of increasing diameter and connected by coupling sleeves defining upwardly directed openings 15 between them through which water is induced from the compartment 4 into the conduit. The uppermost tube 13 discharges into a header 19 provided with two discharge passages 20, 20<a> leading to the next compartment 5 where a similar action occurs. In the last compartment 6 the conduit comprises two tubes 11<a>, 12a surrounded by a tube 16 to which clean water is supplied from the water turbine 32. The header 23 above this conduit has a single discharge passage 24 leading to a hopper 25 from which the sand is discharged along a tube 29 by means of a water jet from a nozzle 28. The water from the hopper 25 flows back through the compartments 6, 5, and 4, mainly by way of openings 30 in the partitions, to an overflow 34, some of the water being re-used by induction through the openings 15. The Provisional Specification describes a form in which the conduit is inclined and discharges directly into a hopper to which fresh water is supplied and also a form in which the pipe forming the first part of the conduit is vertical and the remaining pipes are approximately horizontal and oppositely curved to produce a sinuous path for the sand and water.
Patent GB-1406806-A (GB)
Title: Microwave devices
IPC: H01B3/12
Filed: 1972-01-04
Abstract: 1406806 Ceramics GENERAL ELECTRIC CO Ltd 2 Jan 1973 [4 Jan 1972] 250/72 Addition to 1268811 Heading C1J [Also in Division H1] A microwave device contains a dielectric material composed of a metazirconate/metatitanate composition of one or more of the oxides of Ca, Sr and Ba with Zr ŒTi (at least 80% ZrO 2  and not more than 20% TiO 2 ) together with 0À1-10 atom per mol. of one or more of the oxides of La, Ni and Zn and optionally Nb and/or Ta (0À1-3 atom per mol.) not more than 10% of BaTiO 3  being present.
Patent GB-685636-A (GB)
Title: Improvements in and relating to grinding machines
IPC: B24B9/14
Filed: 1950-01-05
Abstract: 685,636. Grinding. MILLS OPTICAL EQUIPMENT, Ltd., A., and MILLS, A. O. April 5, 1951 [Jan. 5, 1950], No. 310/50. Class 60. A grinding machine comprises one or more grinding wheels, a reservoir for liquid coolant, and a lid covering the reservoir, the grinding wheel or wheels being supported on the lid and arranged so that they are cooled by the coolant during rotation and the lid being secured relative to the reservoir so that it can be moved to uncover the reservoir. A machine for edge grinding optical lenses has two rectangular cast metal bases 10, 11 fixed end to end; the base 10 supports a diamond impregnated grinding wheel 13 for fast cutting and a carborundum wheel 14 for finishing. The base 10 is a hollow box serving as a reservoir for cooling water and has a lid 15 hinged at 16; bearing members 19 on the lid 15 carry a shaft on which the grinding wheels and an intervening spacer 17 are mounted. An electric motor 12 fixed to the base 11 drives the shaft through a rubber belt 22 provided with a guard 24 hingedly supported at one end by a bracket 25 and resting at its other end on a support 26. The lid 15 has a rim 15b which is raised at the front to form a hand rest for an operative holding lenses against the wheels. The upper parts of the wheels are enclosed by a housing 20; the lower parts project into the reservoir through a recess 15a in the lid; the recess extends for a short distance in front of the wheel housing to form a drain hole for any cooling water which gathers on the lid 15, the latter being sloped toward this hole to facilitate drainage. The rear of the housing 20 is carried down into the reservoir for a short distance to carry water collected on the inside of the housing 20 into the reservoir, The wheels do not touch the water in the reservoir but take up cooling water from a sponge 28 fixed to the underside of the lid in contact with the wheels and dipping into the water. The front of the lid is clamped by a finger nut 27 to its base 10; to clean out or refill the reservoir or to replace or adjust the sponge the nut 27 is loosened and the lid tilted back on its hinges, the driving belt 22 becoming slack to discontinue the drive and the belt guard 24 sliding on its rear support 26; the underside of the lid may carry a prop 29 to hold it raised.
Patent GB-562698-A (GB)
Title: Roofs for buildings
IPC: E04C3/44
Filed: 1943-01-07
Abstract: 562,698. Roofs. GLOVER, C. W. Jan. 7, 1943, No. 335. [Class 20 (iv)] In a portal roof construction, precast concrete rafters 1 have vertical ends 4 with transverse holes receiving bolts which secure the rafters to columns 3. The rafters may be hinged together at the top, or they may be formed with rocker portions 6 which are rigid at the top and connected by stepped joints 7 to the lower portions 2. Specifications 537,187 545,759, and 562,699 are referred to.
Patent GB-370971-A (GB)
Title: Improvements in or relating to apparatus for moulding pneumatic tyres
IPC: B29D30/06
Filed: 1931-01-06
Abstract: 370,971. Moulding wheeltyres. DUNLOP RUBBER CO., Ltd., 32, Osnaburgh Street, London, and WILLSHAW, H., of Dunlop Rubber Co., Fort Dunlop, Erdington, Birmingham. Jan. 6, 1931, Nos. 450 and 27587. [Class 87 (ii).] Wheel tyres are moulded between moulds 1, 3 a resilient core 9 detachably connected to radial slides 7 being inserted into the tyre during the closing of the mould halves. The tyre blank is supported on flaps 15 as described in Specification 300,324, [Class 87 (ii), Moulding plastic &c. substances], and the press plunger 4 is provided with a head 13 which actuates toggle linkage 16, 12 to move the slides 7. The slides 7 work in guides 8 which move vertically with the press plunger. Alternate slides 7 may have a greater radial motion imparted to them than the slide adjacent thereto. The core 9 may be of rubber and may be inflatable, and may contain a metal reinforcement, e.g. in plate-spring or helical form.
Patent GB-112501-A (GB)
Title: A New or Improved Material for Stair Treads and other purposes.
Inventor: FROOD HERBERT
IPC: E04F11/16
Filed: 1917-01-10
Abstract: 112,501. Frood, H. Jan. 10, 1917. Energy-absorbing elements. - Relates to compound fabric formed of sheets of indiarubber combined with sheets of other materials and applicable for use as friction surfaces for brakes. A laver of plastic indiarubber c is placed between two layers a, b of woven asbestos or other mineral or organic fibrous material which have been treated with a waterproof cementitious substance such as that described in Specification 4627/09. The material is then pressed between rolis or dies which form a raised or sunk pattern on one or both sides and is finally vulcanized. Reinforcing wires or metallic fibre may be incorporated in the material, and the lower layer may be composed of sheet metal b<1>, Fig. 4, or other non-fibrous material.
Patent GB-586558-A (GB)
Title: Improvements in internal combustion turbine plant for propulsion
IPC: F02C3/067
Filed: 1942-01-12
Abstract: 586,558. Gas turbines. BAUMANN, K., and METROPOLITAN-VICKERS ELECTRICAL CO.; Ltd. Jan. 12, 1942, No. 473. Drawings to Specification. [Class 110 (iii)] The compressor of a gas turbine plant for aircraft production receives air through the inner region of a gear-driven tractor propeller. The shaft driving the propeller passes through the compressor and the latter is driven by one or more sleeve members surrounding that shaft. Either or both the turbine and the propeller may be of the double contra-rotational type with the interposition of the necessary gears. Specifications 586,555, 586,556 and 586,557 are referred to.
Patent GB-656361-A (GB)
Title: Improvements in tents
IPC: E04H15/18
Filed: 1949-01-07
Abstract: 656,361. Tents. PIGGOTT, C. H. Jan. 7, 1949, No. 494. [Class 20(i)] A marquee comprises side and end walls constructed of stanchions 10 joined by latticework 11 roof trusses 12 supported on the side wall stanchions and carrying a canvas roof 19 and a ridge hood 24 providing ventilation under the lower edges. The roof truss comprises main beams. 15 and a vertical member 22 all interlocking and pinned together at 16 and supporting a triangular member 21 which provides the apex of the roof supporting the centre of the hood 24 by means of a tubular metal ridge member 23. The lower end of the member 22 is braced by tie rods. The canvas roof is supported on metal tubes 18 carried by the roof trusses. Single way marquees may be juxtaposed to form a multiway marquee by omitting bracing members 14, extending and joining roof truss bracing members 17 and providing a gutter.
Patent GB-156643-A (GB)
Title: Improvements in the method of, and apparatus for, operating smelting and reducing furnaces, more particularly iron smelting blast furnaces
IPC: C21B7/14
Filed: 1921-01-06
Abstract: 156,643. Koppers, H. April 27, 1918, [Convention date]. Alloys.-In the operation of smelting and reducing furnaces more particularly ironsmelting blast furnaces, a substantially constant level of slag is maintained on the hearth so that the reactions occurring therein proceed uninterruptedly. For this purpose, a slag overflow f and a connected siphon g for the molten metal are provided, through which the slag and metal respectively flow into an adjacent container c which may be separately heated and from which intermitted delivery is effected in the ordinary way. The overflow f is of a section large enough to allow the passage of hot gas to equalize pressure and keep the passage clear. A throttle outlet e controls the quantity of gas passing. With the arrangement described, a manganese iron alloy can be made by introducing the manganese into the slag in liquid form as a silicate, the reduction of the manganese readily taking place in the hearth. Specification 17678/14, [Class 55 (i), Coking &c.], is referred to.
Patent GB-412508-A (GB)
Title: Improvements relating to capstan lathes
IPC: B23Q5/34
Filed: 1934-01-08
Abstract: 412,508. Lathes. WARD & CO., Ltd., H. W., and WILLIAMS, W. T., Dale Road, Selly Oak, Birmingham. Jan. 8, 1934, No. 634. [Class 83 (iii).] In a capstan lathe, in order to permit the mounting of a large tool d, the face of the capstan a is provided with a vertical tool, holding slide f which is raised by a fixed cam i and lever g during rotation of the capstan to carry the tool clear of obstruction by the turret slide b. The working position of the slide f may be determined by a stop, and more than one slide f may be provided. Specification 408,824 is referred to.
Patent GB-468073-A (GB)
Title: Improvements relating to sieving machines for cereal products
IPC: B02B1/02
Filed: 1936-01-09
Abstract: 468,073. Sifting apparatus. GREENWOOD, J., GREENWOOD, J., and HOLGATE, J. B. Jan. 9, 1936, No. 756. [Class 117] In sifting-apparatus of the kind in which the material in passing over the sieve a, Fig. 1, is simultaneously subjected to the action of an aspirating air current which carries off the lighter constituents and in which the aspirating current is increased at the tail end of the machine, a separate chamber is provided at the tail end of the sieve where the increased air current occurs and the effective area of the sieve is reduced by a grid-like structure k consisting of bars k<1> which rest on the sieve surface and form passages for the material of gradually decreasing width. The bars k are connected on their upper sides by cross-pieces and longitudinal passages are provided for the collection and discharge of material too heavy to be carried away by the air current. The grid is preferably hinged to a bridge piece u forming part of or moving with the sieve and rests on the support q.
Patent GB-474506-A (GB)
Title: Improvement relating to the springing of road vehicles
IPC: B62K27/06
Filed: 1937-01-11
Abstract: 474,506. Vehicle spring-suspensions. NOXAL, Ltd., and CONNER, J. W. Jan. 11, 1937, No. 779. [Class 108 (ii)] In a spring-suspension for the bodies of sidecars and like road vehicles of the kind in which a transverse bar 1 secured to the under surface of the body 2 is supported at its ends between upper and lower springs 14, 13 within a vertical cylindrical casing 10 slotted at 19, the bar 1 is fitted at its extremities with balls 6 working between upper and lower part-sockets 9, 8, one of the balls being formed integrally with a pin 5 slidable in a socket 4 in the bar 1 so that the length of the bar is automatically adjusted according to its inclination. Lubricating openings 7, 18 are provided in the bore 4 and casing 10, while an escape opening 22 for excess of lubricant is formed at the base of the casing 10.
Patent GB-488623-A (GB)
Title: Improvements in or relating to brake applying means
IPC: F16D65/22
Filed: 1937-01-11
Abstract: 488,623. Brakes. AUTOMOTIVE PRODUCTS CO., Ltd., and PARNELL, F. G. Jan. 11, 1937, No. 819. [Class 103 (i)] A drum brake is adapted to be operated by a toggle the links 25, 26 of which abut end to end by means of curved surfaces 30 and roll against one another during brake application. The links are contained in deep grooves 23, 24 in plungers 20, 21 which engage the brake shoes, the links having curved surfaces 27 adapted to roll on the bottom of the grooves. The links are connected to an operating member 31 by pins 33 fitting in grooves 35 in the member 31. The housing 10 is allowed to float on the brake back plate 11 by means of studs 12 in grooves 14. In a modification the links are mounted on loosely journalled pins, also the links may be made in two parts, a link part being welded to a journal. The links may be provided with teeth to prevent slipping.
Patent GB-1300536-A (GB)
Title: Improvements in display and/or packaging devices
Inventor: LOVELOCK FRANCIS WILLIAM TIMOT
IPC: B65D5/52
Filed: 1970-01-07
Abstract: 1300536 Boxes JAMES HAWORTH Ltd and J S HAWORTH 19 April 1971 [7 Jan 1970] 862/70 Heading B8P [Also in Division G5] A strip of pliable material 1, e.g. of cardboard, has rims 2 which are also deformable but relatively rigid, e.g. of metal. On bending the material it forms the desired shape which it then retains. A crease 3 may be provided to facilitate this bending. Four bends may be made, to form a box, Fig. 5, and flaps (9), Fig. 8 (not shown), may be provided which interlock to form a closed box. Alternatively, two devices of the kind shown in Fig. 5, disposed at right angles to each other, fit together to form a closed box. The box of Fig. 5 can be opened to form a display for the articles (X) contained in it, Fig. 6 (not shown). The rim 2 may be patterned in any of the above embodiments, Fig. 7 (not shown).
Patent GB-1166391-A (GB)
Title: Plant comprising a Stationary Reaction Vessel for Converting Ferrous Charging Materials into Steel.
IPC: C21C5/40
Filed: 1967-01-06
Abstract: 1,166,391. Metallurgical converters; converter chimneys. VEREINIGTE OSTERREICHISCHE EISENUND STAHLWERKE A.G. 6 Jan., 1967 [24 May, 1966], No. 887/67. Addition to 1,150,093. Headings F4B and F4J. The refractory lined metallurgical converter 1 with hood 4 is disclosed in Specification 1,150,093 has a chamber 14 with a lower scrap preheating part 16 containing a tiltable charging trough 22 and an upper part 17 sealable in gas-tight manner by a valve 19 from a waste heat boiler 18. Chamber 14 is lined with pipes 27 which may be linked with the waste heat boiler, the latter having burners 28 and a pair of slag hoppers 29 between which is a charging machine 30. Slag screens 20 and air pipes 21 extend through the roof of the chamber 14. Scrap in a box 25 is pushed by ram 30 on to the trough 22, which is eventually tilted by hydraulic jack 23 to discharge preheated scrap into the converter. In a modification (Fig. 3), the waste heat boiler is replaced by a flue gas cooler, the cooled flue gas being utilized elsewhere. An inert gas pipe opens into the upper chamber part 17.
Patent GB-968062-A (GB)
Title: Unitary umbrella frames
IPC: A45B25/02
Filed: 1963-01-08
Abstract: 968,062. Umbrellas. FINKEL UMBRELLA FRAME CO. Inc. Jan. 8, 1963 [Jan. 8, 1962], No. 898/63. Heading A4P. An umbrella frame 13 comprises a notch 15, runner 17, ribs 16 and stretchers 19, one end of each rib being integral with and hinged to the notch and the opposite ends of each stretcher being integral with and hinged to the runner and to the ribs respectively. The frame to which a fabric or plastic cover 12 is secured is moulded in a plastic, e.g. polypropylene, in two parts, an upper spider 25 consisting of the notch and the ribs and a lower spider 26 having stretchers 19 radiating from a collar 18 on the runner, self-hinges 21, 22, 23 being provided in the moulding process by forming thinned, flattened portions in the ribs and stretchers which are of rectangular, square, round &c. cross-section. The two spiders are then joined at the self-hinge 22 by heat or heat and pressure. In modifications the ribs are arched and the frame is moulded in one piece. The invention is applicable to garden beach &c. umbrellas with or without handles.
Patent GB-631125-A (GB)
Title: Improvements in or relating to control mechanism for spring motors
IPC: F03G1/00
Filed: 1947-01-10
Abstract: 631,125. Kinematograph cameras. AMPRO CORPORATION. Jan. 10, 1947, No. 902. Convention date, Jan. 12, 1946. [Class 97 (i)] [ALso in Group XXVI] In a spring motor for a kinematograph camera a torque control mechanism comprises an arm connected to the motor so as to be urged by its torque to swing in one direction and means adapted yieldingly to resist such swing and to swing the arm in the reverse direction to stop the motor when its torque falls below a predetermined minimum. In the form shown the spring is contained in a drum which carries gear teeth on its periphery for driving the camera mechanism. The inner end of the spring is attached to a spindle 19 which carries the winding key and a disc 38. Freely mounted on the spindle 19 is an arm 32 which carries two eccentrically mounted discs 36, 37 urged in opposite directions by a spring 39 connected between pins 41, 42 thereon. The disc 38 thus co-operates with the discs 36, 37 to form a free-wheel which allows the spring to be wound by a clockwise rotation of the spindle 19, but which causes the arm 32 to be rotated by the torque of the wound spring against the pressure of spring blades 44 secured to the arm at 45 and bearing on a fixed pin 46. An eccentric cam 48 bears on the spring blades and is rotatable to adjust their pressure. The camera mechanism includes a sliding bar normally manually operated and carrying stop members which can thereby be brought into engagement with cams on a driving shaft to provide for kinematographic or single exposures or a stopped position. The movement of the arm 32 when the motor torque falls below the predetermined minimum is utilised to cause the sliding bar to return, under the action of a spring, to the position where the mechanism is stopped.
Patent HK-65095-A (HK)
Title: Method and arrangement to directly allocate destination call requests for elevator groups on the basis of service costs and variable bonus/penalty factors
Inventor: SCHROEDER JORIS DR
IPC: B66B1/00
Filed: 1995-04-27
Abstract: In this method, destination calls (R(+)(-)) are immediately definitively allocated to the individual elevators (N) on the basis of higher- and lower-priority function requests to the call service and these allocations are immediately indicated at the input storeys (E1...E16). For this purpose, a weighted sum is formed from partial service costs (K1...Kn) which correspond to higher-priority function requests, this sum is modified by means of variable bonus/penalty factors (BF1...; MF1...) in the sense of lower-priority function requests with respect to service costs (KNR) and a destination call (R(+)(-)) is allocated to the elevator (N) with the lowest service costs (KNR). A destination call allocation algorithm (ZZA) according to steps 1 to 6 (SR1...SR6) with subordinate algorithms for the bonus/penalty tracking (NFA) and the cost calculation (KBA) is used for implementing this method. The tracking algorithm (NFA) is used for continuously correcting the bonus/penalty factors (BF1...; MF1...) group-by-group or elevator-by-elevator in accordance with the traffic load or cabin load. In the cost calculation algorithm (KBA), the operating costs (KNR) are calculated in accordance with a special cost formula, the corrected bonus/penalty factors (BF1...; MF1...) acting multiplicatively on a six-part partial cost sum. This allocation method improves, above all, the user-friendliness and the quantitative aspects of "waiting times" and "times to destination". It utilises capacity reserves during low traffic for additional function requests to the call service. 
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Patent HK-84691-A (HK)
Title: Signal-droput correction circuit for correcting video signals disturbed by signal dropouts
Inventor: DE BOER EELTJE
IPC: H04N9/88
Filed: 1991-10-24
Abstract: A dropout correction circuit is described. It comprises a dropout detector (10), which compares a signal with a reference level and controls a switch (5) which connects an output of the circuit to a line memory (1), in order to insert a corresponding part of a preceding line during such a dropout. In order to enable the reference level to be selected as high as possible the colour carrier is extracted before the video signal is applied to the dropout detector.
Patent HU-T44946-A (HU)
Title: Hollow glass building units provided with fire-preventing filler
Inventor: NOLTE HANS-HENNING
IPC: C09K21/00
Filed: 1986-02-21
Abstract: 1. A glass constructional unit with at least one hollow space with a fire protection filling consisting mainly of water that contains a solidifed water gel, characterized in that the water gel consists of : up to 20% by weight of SiO2 , up to 10% by weight of Na2 O, up to 25% by weight of an organic and/or inorganic acid that reacts with sodium waterglass to form a compound, Remainder : Water to which water a preservative has been added before the formation of the water gel.