baber/WOPTO huggingface dataset:
Patent GB-1169080-A (GB)
Title: Ground Effect Machine
Inventor: NOBLE BRUCE THOMAS
IPC: B60V1/00
Filed: 1967-06-02
Abstract: 1,169,080. Inflatable skirts for ground effect machines. BRITISH HOVERCRAFT CORP. Ltd. 16 May, 1968 [2 June, 1967], No. 25705/67. Heading B7K. A ground effect machine has a platform 1, which is supported during at least one phase of operation by one or more cushions of pressurized fluid 8, said cushions being bounded at least in part by a flexible diaphragm 2 inflated, Fig. 2, through an orifice 6 by fluid to an operational position, the underside of the platform and magnetic strips 13 on diaphragm 2 having a mutual power of attraction such that on deflating the diaphragm the configuration of Fig. 1 is assumed. The strips 13 may also be formed within the diaphragm 2, or diaphragm 2 may be made of magnetic material. Alternatively at least part of the platform may be magnetized, for example by electrical coils, the diaphragm then being provided with materials responsive to magnetic forces. The fluid cushion 8 may be derived via orifice 7 from fluid supplied to inflate the diaphragm 2, and a skirt may be provided around each diaphragm, or around the periphery 9 of the platform, or both. The platform may be supported on legs or castors when the diaphragms are deflated.
Patent GB-497109-A (GB)
Title: An improved gear for automatically controlling the operation of pumps or other delivery devices in accordance with the rate of flow of a fluid or quantity of a solid
IPC: C02F1/68
Filed: 1937-09-22
Abstract: 497,109. Electric control systems. SCOWEN, J. J. E., and BOBY & CO., Ltd., W. Sept. 22, 1937, No. 25744. [Class 40 (i)] In apparatus for controlling the operation of a pump or other delivery device in accordance with the rate of flow of a fluid or quantity of a solid, more particularly for mixing two fluids in predetermined proportions, a flow meter 10 operates a contact 24 which co-operates with two segmental contacts 18, 19 on a follow-up member driven by a speedometer 35. When the flow of one fluid varies, the follow-up switch operates one or other of the mercury switches 44, 45 to drive a motor 41 in the appropriate direction. This motor controls a variable-speed gear 38 interposed between a constant speed motor 37 and a pump 39 and the arrangement is such that the speed of the pump is varied until the follow-up contacts 18, 19 driven from the pump through the intermediary of a speedometer 35, 36 again open the circuit. An insulating segment 50 opens the circuit of the follow-up switch when the meter 10 occupies its zero position. A cam also is introduced in the connection between the speedometer and the follow-up contacts so as to produce a straight-line relationship between the changes in position of the contacts and the changes in speed of the pump. The variable-speed gear 38 may be replaced by a variable-speed electric motor; furthermore the follow-up switch may be controlled from the flow meter and speedometer through a pneumatic, hydraulic or photo-electric system.
Patent GB-848876-A (GB)
Title: Gas fires
Inventor: SUGG PHILIP CRAWFORD
IPC: F24C3/04
Filed: 1956-08-23
Abstract: 848,876. Gas fires. SUGG & CO. Ltd., W. Aug. 23, 1956, No. 25831/56. Class 126. [Also in Group XIII] A gas fire having a burner B, Fig. 2, and radiant elements E, has an air heating unit comprising a vertically-extending metal box 1 having an inlet 2 for combustion products from the burner extending across its underside, and a chimney opening O, the box having a V-shaped baffle 3, Fig. 1, which diverts the products as shown by the arrows to the outlet O. Air flows by convection from the room through the inlet 15 and a duct 16 behind the fire and thence over the outside of the box and through a grille 17 back into the room. The inlet 2 for the combustion products is controlled by a cylindrical damper 8 connected through linkage to the valve controlling the flow of gas to the burner, so that the flow through the inlet is increased with increased flow of gas to the burner. The outflow from the box may be controlled by a damper 11. Specifications 731,579 and 808,358 are referred to.
Patent GB-1505818-A (GB)
Title: Polymerisation process
IPC: C08F4/24
Filed: 1974-06-11
Abstract: 1505818 Polymerisation catalyst BRITISH PETROLEUM CO Ltd 21 May 1975 [11 June 1974] 25833/74 Heading BIE [Also in Division C3] An olefin-polymerisation catalyst is prepared by (i) heating a support comprising silica, alumina, thoria, zirconia or composites thereof, having chemisorbed surface hydroxyl groups, with one or more compounds of metals selected from B, Cu, Mg, Al, Zr, Th, V, Cr, Mo, W, Mn, Fe, Co, Ni, Zn, Ga, Sn, Pb or La at a temperature of 150-1200‹C, and (ii) incorporating in the product under substantially anhydrous conditions a chromium compound and heating at 100-900‹C to activate the catalyst. The support may be reacted with the metal compound(s) in two steps with an intermediate rehydroxylation of the support with a hydroxyl-containing compound, e.g. water or an alcohol. The examples relate to silica-supported compositions.
Patent GB-1304974-A (GB)
IPC: A23N7/00
Filed: 1971-04-19
Abstract: 1304974 Peeling machine TECHNISCH BUREAU EN MACHINE FABRIEK H GLASTRA NV 19 April 1971 [2 April 1970] 25874/71 Heading A4C A peeling machine comprises a container 1 having a lid 10, a double acting piston and cylinder assembly A for moving the lid between an open and a closed position, first and second shut-off valves B and C respectively for supplying to and discharging peeling fluid from the container, the first shut-off valve being self closing, a cross over valve 34 connected to both ends of the cylinder; a control valve E connected to the end of the cylinder which the piston approaches when closing the lid, the control valve being arranged to be opened in response to piston movement when the lid closes to allow control fluid to open the first shut-off valve B, and another valve D connected between the said end of the cylinder and the cross over valve and responsive to the pressure of peeling fluid in the container falling from its normal working pressure to a predetermined low pressure to allow the control fluid into the cylinder to effect opening of the lid. The control valve E consists of a slider (73) in a housing Fig. 2, (not shown) under the influence of fluid in a conduit 47 which is in fluid communication with the said end of the cylinder. The cross over valve 34 is provided with a single source of control fluid 38 and is actuatable by a switch 59 to transmit control fluid to the piston and cylinder device and to the actuating cylinder of the shut off valve B. The other valve D controls the passage of control fluid from the cross over valve 34 to the said end of the cylinder to open the lid 10 of the container, and is actuated by an electromagnetic switch 68 in response to the pressure of peeling fluid in the container. The container is rotatable by a motor when the pressure inside the container reaches a predetermined level for peeling, and the motor is cut out after a predetermined period of time.
Patent GB-1491060-A (GB)
Title: Electronic type polyphase electric energy meter
IPC: G01R21/133
Filed: 1975-06-18
Abstract: 1491060 Energy measuring NIHON DENKI KEIKI KENTEISHO 18 June 1975 26008/75 Heading G1U [Also in Division G4] In a poly-phase watt-hour meter, voltage and current measurements for the individual phases are made cyclically, each pair of voltage and current measurements are multiplied, and the resulting products are summed to provide a measure of the instantaneous power, which is then integrated, with respect to time, over the period for which measurement of the total energy is required. As described, cyclical sampling of the individual phases is at a frequency asynchronous with, and considerably higher than, the supply frequency and multiplication is effected using amplitude and duration modulation of pulses. Each negative-going edge of a sampling pulse Q, Fig. 1, causes a sequencer B cyclically to mark one of three leads b 1 , b 2 , b 3  to open a corresponding pair of voltage and current switches Si, S 1a ; S 2 , S 2a ; S 3 , S 3a ; for the three phases or a supply 123N. Each lead bi, b 2 , b 3 , when marked, for example lead b 1 , which closes switches S 1 , S 1a  as shown, remains marked for a duration linearly proportional to the phase voltage e at that instant, this being achieved by comparing D the phase voltage e with a linearly rising voltage produced by charging a capacitor Co at a constant rate from a constant current source Tr2. When the voltage across the capacitor Co has risen to the phase voltage e (plus a small bias E), the PUT comparator D fires to raise the input to the sequencer B which then terminates the marking on lead b 1  and the switches S 1  and S 1a  open. Thus, the current sensing switch S 1a  will have been open for a duration linearly dependent upon the corresponding phase voltage, so that the pulse that passes to a summing capacitor Cf represents, by its area, the instantaneous power in the phase being sensed. Successive power representing pulses are summed, and the result is converted to a corresponding frequency, the cycles of which are counted F. A modified duration modulation circuit, Fig. 3, (not shown) is described.
Patent GB-457225-A (GB)
Title: Improvements relating to display cartons
IPC: B65D5/52
Filed: 1935-09-20
Abstract: 457,225. Display cartons. THYNE, Ltd., W., and THYNE, W., Lochend, Edinburgh. Sept. 20, 1935, No. 26064. [Class 18] [See also Group XVIII] A collapsable display carton of the kind known as a " display outer " has its side walls 1 in the form of a band carrying two flaps 2 adapted to be folded on to the base 3 and held by the engagement of tongues 4, 5 on each flap in incisions 4a, 5a. The flaps may be folded diagonally to constitute a tilter for the carton, tongues 4 then engaging supplementary incision 4b to keep the flaps in position.
Patent GB-1224172-A (GB)
Title: Improvements in or relating to the production of nitrogenous material
Inventor: GIDDEY CLAUDE ROBERT
IPC: C12P19/42
Filed: 1967-06-06
Abstract: 1,224,172. Extracting protein. BRITISH PETROLEUM CO. Ltd. 2 May, 1968 [6 June, 1967], No. 26093/67. Heading C3H. [Also in Division C6] In the recovery of a nitrogenous product from the cells of micro-organisms, the cells are extracted with a solvent which consists of or contains formic acid, the extraction being carried out under conditions such that a substantial proportion of the free protein content of the cells and of compounds present in the cells having carbohydrate-to-protein bonds pass into the extract phase and such that a substantial proportion of the free carbohydrate content of the cells remains in solid phase, thereafter the extract phase is separated from the solid phase, the extract phase, which contains compounds having carbohydrate-to-protein bonds, is maintained at such temperatures for such a period of time that the bonds are disrupted, and there is recovered from the treated extract phase a nitrogenous product. The micro-organism cells are typically obtained by the aerobic culture of specified normal paraffin-consuming yeasts, moulds or bacteria on a hydrocarbon substrate. Under preferred conditions of operation the micro-organism is in a dry state when subjected to the extraction, formic acid is employed in the anhydrous state or in aqueous dilution containing at least 30% of formic acid and the extraction is carried out at a temperature below 60‹ C. with a contact time of at least 2 hours. Disruption of the carbohydrate-to-protein bonds may be achieved by subjecting the extract to elevated temperature (60-100‹ C.) or maintaining the extract for a prolonged period (2-50 hours) at ambient temperature. According to the examples, dry Candida yeast was treated with 85% w./w. aqueous formic acid at 20‹ C. for 16 hours. The extract phase was maintained under stirring at 20‹ C. for 48 hours (or at 80‹ C. for 2 hours) and the formic acid was then removed by vacuum distillation. From the solid residue there was obtained an aqueous phase containing 18% by weight of the original nitrogen of the yeast and a solid phase from which there was obtained by further extraction and precipitation proteinaceous material (12.5% by wt. of nitrogen) constituting 52% by wt. of the original nitrogen of the yeast.
Patent GB-814998-A (GB)
Title: Improvements in or relating to cable belt conveyors
Inventor: WALKER JOHN ROLAND
IPC: B65G17/02
Filed: 1956-08-27
Abstract: 814,998. Endless belt conveyers. CABLE BELT Ltd. Aug. 26, 1957 [Aug. 27, 1956], No. 26155/56. Class 78 (1). In a conveyer of the kind in which the belt 13 is supported adjacent its edges by driving cables 31, 32 and is connected to them by means which are disengaged when the belt is led away from the cables, the cables are driven by a pair of coaxial surge wheels 15 placed beyond the end drum 11 around which the belt passes, the belt is supported adjacent the drum by rollers 51 which lift it away from the cables, and the cables are deflected outwardly from their belt supporting path by guide pulleys 47, 48 rotating about vertical axes and are restored to parallelism by similar pulleys 56 before they engage the surge wheels. A belt tensioning carriage 21, Fig. 2, supports the drums 22, 23 around which the belt passes at the other end of the conveyer. The wheels 24 of this carriage run on rails 25 and the carriage is connected by a cable 26 to a suspended weight 29. The cables 31, 32 pass through the carriage 21 and around tension pulleys 33, each of which is mounted on a wheeled carriage 34. A pulley 35 mounted on each carriage engages a bight of a cable 36 which is connected at one end to a suspended weight 38 and at the other to the drum of a hand winch 37. The cables on return from the pulleys 33 to the carriage pass over guide pulleys 62, 63 mounted with their axes vertical on a rocking beam 64. They then converge towards similar pairs of pulleys 66, 67 which, in conjunction with pulleys 68, direct them into parallelism. Rollers 71 act in a similar manner to the rollers 51 of Figs. 5 and 6.
Patent GB-634535-A (GB)
Title: Improvements in or relating to control mechanism, more particularly for data responsive apparatus
IPC: G08C19/00
Filed: 1947-09-26
Abstract: 634,535. Automatic control systems. BENDIX AVIATION CORPORATION. Sept. 26, 1947, No. 26170. Convention date, Sept. 27, 1946. [Class 38 (iv)] [Also in Group XXXVII] Relates to apparatus in which a control operation such as the movement of a switch 72, Fig. 3, into one of its three possible positions is effected in accordance with the average of a number of measurements or data a high average for example moving the switch into its upper position, a low average leaving it in the position shown and an intermediate average leaving it in an intermediate position. The apparatus is operated by a self-starting synchronous motor 16 which is subjected in succession to a series of impulses corresponding respectively in duration to the measurements, so that the length of time during which the motor is running corresponds to the sum or average of the measurements. During operation the motor strains a spring 54 and at the end of the operation an electromagnet 78 is energized to declutch the motor from the switch-actuating cam 38 so that the latter returns to its starting position. The synchronous motor 16 drives a pinion 32 which drives an element 30 fixed to a shaft 26 and normally coupled to the cam disc 38 by a cork friction ring 36. This coupling is effected by a spring 84 acting on a bell-crank lever 80 which presses on a ball 28 which presses the shaft 26 to the right. When the electromagnet 78 is energized the lever 80 moves away from the ball 28 and a spring 39 pushes apart the members 34, 36 so declutching them. The cam disc 38 has portions of two different radii and carries adjustably a segment 44 of intermediate radius. The switch 72 is also adjustably mounted. Specification 627,030 is referred to.
Patent GB-534936-A (GB)
Title: Improvements in or relating to liquid immersed electric circuit interrupters
IPC: H01H33/92
Filed: 1939-09-20
Abstract: 534,936. Liquids-blast switches; switch cases. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Sept. 20, 1939, No. 26228. Convention date, Sept. 21, 1938. [Class 38 (v)] A circuit-breaking assembly, adapted to be housed in a tubular insulating assembly by means of arms 61 on a flanged casing member 59, comprises a pair of series-connected elements 53, 55 separated by a metal section 57. Each element comprises an insulating tube 63 having threaded metal collars 65 at each end and containing a stack of insulating washers 67, 69 of different diameters so as to provide a cylindrical arc-chamber 71 of corrugated section; the lower chamber being of larger diameter. Each element also includes a support 73 carrying four fixed contact-fingers 75, the upper set being connected by flexible shunts 77 to member 59 and the lower by shunts 79 to a conducting part 101 on the operating rod 81, Fig; 5. The main movable contacts 91 and arcing contact 93 for each element is carried on a ring 89 above which is a stack of insulating washers 97, 99, the thickness or spacing of which is such as to prevent their locking with 67, 69. The arcing fingers 93 project into a channel formed by cut-away parts on one sieie of the washers 67, the upper ring 89 and washers 99 being of smaller diameter than the lower ones. A metal sleeve 105 having a corrugated surface to prevent it from binding in the guide plate 165, is threaded on to an upper metal fitting 85 on member 81 and serves to hold all the parts of the member in place on the central insulating core 83. Further guide members 167, 171 for member 81 and actuating member 117 are provided with knife edges, as 169, to clean the surfaces which they guide of solid deposits. The upper end 143 of member 81 is secured to a plate 139 guided on rods 141 which are screwed into member 59 and support a plate 137. A battery of compression springs 135 between plates 137, 139 provide the opening force, the opening stroke being cushioned by a plate 161 and springs 163 guided on the rods 141. The lower metal fitting 85 has threaded to it a metal support 87 on which is threaded a contact structure 111 co-operating with the upper end 115 of actuating member 117 to form a series isolator, which is opened subsequently to, and closed prior to, the contacts of elements 53, 55, the actuating means and substructure being illustrated in Figs. 1 and 2 (not shown) and including a current transformer. When the switch is being opened, and due to the relative diameters of the washers 99 and members 101, 105, the washers 99 behave as pistons causing a partial vacuum above them, into which the arc gases escape, and a pressure below them for sending a stream of liquid longitudinally of the arc to cause it to be quenched at zero of the cycle, so avoiding voltage surges due to sudden reduction of the current to zero.
Patent GB-242962-A (GB)
Title: Improved method of and apparatus for heating cement kilns
IPC: F22B1/18
Filed: 1925-10-21
Abstract: 242,962. Lanhoffer, I. E. Nov. 14, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Rotary kilns.-In cement-making plant in which the preliminary and final heating of the material are effected in separate kilns, steam generators having auxiliary firing means are placed in the path of the heating gases between the two kilns, and a bye-pass flue is provided by which more or less of the gases can be passed direct to the preliminary heating kiln. In the plant shown having a pair of final heating-drums D<1>, D<2> connected by a dampered flue N with preliminary heating drums E<1>, E<2>, the steam generators C<1>, C<2> C<3> are connected with the flue N by inlet and exhaust flue G, N' respectively, opening into the flue N on opposite sides of the damper W. The auxiliary firing means may consist of combustion chambers with pulverized fuel burners,and any one of the boilers may be put out of operation by dampers V<1>, I<1>. By controlling the auxiliary firing means, and the proportion of kiln gases passed through the generators, the output of steam can be varied between wide limits without affecting the operation of the kiln. Specification 263,221 is referred to.
Patent GB-1583998-A (GB)
Title: Developing agent for electrographic printing process
IPC: G03G9/097
Filed: 1977-06-24
Abstract: The developer can be used for developing electrostatic latent images in electrographic printing processes, contains at least 2 different toners of different colour and has a flow capacity of 80 DEG  or less, expressed as the angle of repose. It can contain at least one additive which is an alkaline earth metal oxide and/or a triazine compound of the formula (1) or (2) <IMAGE>  in which the symbols are as defined in Claim 13. The angle of repose which is important for the properties of the developer is preferably 20 to 60 DEG . The developer also contains a finely particulate carrier, in particular iron powder, in such quantities that the carrier particles can build up on average a coating at most three layers thick on toner particles.
Patent GB-352801-A (GB)
Title: Improvements in sucker rods for deep well pumps
IPC: E21B17/042
Filed: 1930-09-05
Abstract: 352,801. Rod couplings. DARDELET THREADLOCK CORPORATION, 120, Broadway, Manhattan, New York, U.S.A.- (Assignees of Thomson, A. M. ; 636, Mt. Prospect Avenue, Newark, New Jersey, U.S.A.) Sept. 5, 1930, No. 26557. Convention date, May 24. [Class 99 (i).] In a sucker-rod for deep-well pumps, comprising sections coupled by threaded joints, each upper section has a rounded end 17a engaging a conical or rounded seat 14a in the box on the lower section, the sections being out of contact between the end 17a and the threads 13. The grooves are wider than the threads and, when the rod sections are forced apart by contact of the end 17a with the bottom of the box, the coned tops of the threads 13 in the box join on the coned bottoms of the grooves 18 in the rod. The diameter at the bottom of the grooves 18 is the same as the normal rod diameter and the cross section of the box has the same area as the normal rod cross section. The ends 11 of the box are tapered and the sections are without abrupt change of form, in order to obtain a stream-line contour. The sections are formed with squared portions to receive a wrench. Specification 242,299, [Class 80 (iii), Linkwork &c.], is referred to.
Patent GB-703799-A (GB)
Title: Improvements relating to gas burners for surface hardening of metals
IPC: C21D1/08
Filed: 1951-11-13
Abstract: 703,799. Gas burners. PEDDINGHAUS, P. C., and PEDDINGHAUS, W., [trading as PEDDINGHAUS, P. F.]. Nov. 13, 1951 [May 15, 1951], No. 26576/51. Class 75 (1) A 'gas burner particularly for use in the surface hardening of metals comprises a chamber 9, Fig. 9, to which fuel gas is supplied through a tube 8 extending thereinto and having a closed end 10 and lateral gas outlet openings 11, the chamber wall 1 facing said closed end being provided with a gas or flame outlet slot, such as a zig-zag slot 2, Fig. 1, or a plurality of closely spaced slots 3, Fig. 3, which may be inclined or perpendicular to the longitudinal axis of the wall 1. The latter may have various peripheral shapes. Alternatively a plurality of parallel gas outlet slots are formed between spaced parallel strips located in an opening in the burner chamber wall.