baber/WOPTO huggingface dataset:
Patent GB-1417729-A (GB)
Title: Two-stage scissors type current collector
IPC: B60L5/22
Filed: 1972-12-22
Abstract: 1417729 Current-collectors LICENTIA PATENT-VERWALTUNGS-GmbH 22 Dec 1972 [29 Dec 1971] 59350/72 Heading B7L A two-stage semi-scissor current collector comprises a low mass first stage 6 consisting of pivoted struts 9, 9<SP>1</SP> supporting a double bow 2, and a high mass second stage 12 consisting of struts 11, II<SP>1</SP>, the struts of the first stage being controlled by a double-acting hydraulic ram 4 supplied with pressure fluid from a pump 8 driven by an hydraulic motor 7 supplied through lines 14 and 15 or by an electric motor powered from overhead line 1, the ram 4 causing the contact pressure of the bow to be constant by comparing the actual pressure as measured by sensor 3 with a desired pressure. A compressed air cylinder 13 controls stage 12 and insulators 16, 17 support the collector on a vehicle roof. A controller adjusts the supply of pressure fluid to ram 4 on dependence of the difference in the actual and desired pressure of the bow on line 1, the controller feeding a signal to a valve in a by-pass channel of pump 8. An alternator driven by motor 7 may supply current to the control apparatus.
Patent GB-1449028-A (GB)
Title: Driving mechanism including a rotary driving hsaft and an axially movable driven memb er
IPC: F16K31/04
Filed: 1973-12-21
Abstract: 1449028 Valves FRANZ KLAUS UNION ARMATUREN PUMPEN 21 Dec 1973 [22 Dec 1972] 59514/73 Heading F2V [Also in Division H2] In a drive mechanism including a rotary driving shaft and an axially movable driven member arranged within a hermetically sealed housing, a rotor in a chamber in the housing is magnetically coupled with a rotary driving element which is located externally of the chamber and which is connected to the rotary driving shaft, and a transmission operates to convert rotary motion of the rotor to axial motion of the axially movable driven member. In the fluid flow control valve arrangement shown, a shaft 11 is rotated by a motor 9 or hand wheel 10 to turn a drive element 22 having a series of permanent magnets 23 located on the outside of a thin wall 16 of a chamber 17 in a hermetically sealed housing 5, 6, thereby to rotate a permanent magnet rotor 24 on the inside of the chamber 17, and a transmission 35 coupled to the rotor 24 operates to produce axial movement of a spindle 8 of a sliding gate 7. As seen, a pinion 33 linked with the rotor 24 engages a gear wheel 36, and a plate 50 fixed to the wheel 36 drives a disc 48 either via a radially inner projection 51 or a radially outer projection 55, according to the direction of rotation, and an internal thread on a sleeve 39 linked to the disc 48 co-operates with an external thread on the spindle 8 to axially move the spindle 8 and gate 7. The settings of projections 51, 55 are chosen to produce greater torque in the valve opening stroke than in the valve closing stroke. In the arrangement of Fig. 3 (not shown), a gear wheel (60) is directly keyed to a threaded sleeve (61) for axially moving a gate spindle (62), and a magnet (65) fixed to the spindle (62) via a rod (66) actuates an external switch (70) when the valve is opened, e.g. to stop the drive motor. In the Fig. 4 system (not shown), a ring magnet (86) for sensing the position of a spindle magnet (62) can be adjusted in position by a motor (85) and a transmission (81-84). In the Fig. 5 embodiment (not shown), a tracking magnet (94) co-operates with a spindle magnet (65) and a potentiometer (92) to indicate the operational state of a valve.
Patent GB-1246898-A (GB)
Title: Terpolyamides
IPC: C08G69/36
Filed: 1969-12-09
Abstract: 1,246,898. Polyamides. MONSANTO CO. 9 Dec., 1969 [10 Dec., 1968], No. 60076/69. Heading C3R. A synthetic fibre-forming polyamide (P) consists essentially of: (A) 1-50% moles (a) -NH-(CH 2 ) x -CO-; (B) 1-40% moles (b) -NH-(CH 2 ) m -NH-CO-(CH 2 ) n -CO-; and (C) 30-60% moles (c) where x is 3-12, m is 4-12, and n is 2-10. Preferably x is 5, m is 6, and n is 4. In (c) the -CO- groups are preferably in the meta- or para-positions, (a) may be introduced in the form of an amino-acid or lactam, and (b) and (c) as the diamines and dicarboxylic acids, or as diammonium salts formed therefrom or as their polyamide-forming derivatives, e.g. amides, esters, acid halides, carbamates, or N-formyl compounds. Many suitable starting materials are listed. The reaction may be performed at 180-300‹ C., until (P) has intrinsic viscosity #0À4 in meta-cresol. The reaction may be performed at atmospheric pressure, or above or below. Preferably O 2  is absent; e.g. an N 2  atmosphere may be employed. Reduced pressure may be employed in the last stages of the reaction to remove by-products. Fibres or filaments formed from (P) may be used in vehicle tyres. The filaments may be drawn after extrusion.
Patent GB-1268919-A (GB)
Title: An electrical circuit for sensing signals of a predetermined amplitude
IPC: G11C11/06
Filed: 1969-12-15
Abstract: 1,268,919. Semi-conductor pulse circuits; magnetic storage apparatus. INTERNATIONAL BUSINESS MACHINES CORP. 15 Dec., 1969 [10 Jan., 1969], No. 60959/69. Headings H3B and H3T. [Also in Division G4] A sensing circuit, more particularly for bipolar read-out pulses from a magnetic core or thin film store comprises a differential transistor amplifier 16 and two bi-stable circuits 22, 22<SP>1</SP> each receiving inputs from both transistors of the amplifier so that one or other switches to its second state if the amplifier is unbalanced. As shown, the bi-stable circuits are Schmitt triggers which are normally in one state but in response a strobe pulse at 70 and an output from the sense/inhibit line 40 one or other is changed in state by the resulting difference between the voltages V 1  and V<SP>1</SP> 2  or V<SP>1</SP> 1  and V 2 . The strobe pulses are timed to occur at a low noise point of the input pulses and also effect resetting of the bistable circuits. The outputs may be commoned by transistors 68, 68<SP>1</SP> to provide a monopolar output.
Patent GB-1264027-A (GB)
Title: Production of thermally stabilized fibrous material
Inventor: STUETZ DAGOBERT ENGLEBERT
IPC: D01F9/22
Filed: 1969-12-17
Abstract: 1,264,027. Polyacrylonitrile filaments. CELANESE CORP. 17 Dec., 1969, No. 61404/69. Heading B5B. [Also in Divisions C1 and C3] Polyacrylonitrile fibres soluble in N,N- dimethylformamide and exhibiting no appreciable exothermic reaction when heated to 500‹ C. are prepared by spinning a solution in an organic solvent of a polymer consisting predominantly of recurring acrylonitrile units and 0À1 to 10% by weight of the polymer of a Lewis acid, as such or in the form of a complex with a nucleophilic reagent, said solution having been maintained at a temperature below 190‹ C. until cyclization of the polymer without substantial increase of the viscosity of the solution has been achieved. The fibres may be drawn over a heated shoe, or steam drawn, in a ratio of 3 :1 to 7 :1. Stabilized insoluble fibres may be prepared by heating the fibres in an oxygen containing atmosphere, e.g. at 200‹ to 400‹ C., and carbonized and graphitized products may be obtained by further heating in an inert atmosphere, e.g. at 900‹ to 3000‹ C. The acrylonitrile may be copolymerized with up to 15 weight per cent of styrene, methyl acrylate, methyl methacrylate, vinyl acetate, vinyl chloride, vinylidene chloride or vinyl pyridine. The solvent may be dimethyl formamide, dimethylacetamide or butyrolactone. The Lewis acid may be stannous chloride, stannic chloride, boron trifluoride, sulphurtrioxide, ferric chloride, titanium tetrachloride, aluminium chloride or indium chloride, or an ether, amide or t-amine complex thereof. In examples solutions of polyaorylonitrile in dimethylformamide are cyclized by heating at 140‹ C. in the presence of (I) stannic chloride/dimethylformamide complex, (II) stannous chloride and (III) borontrifluoride/dimethylformamide complex, wet spun into filaments, which are drawn over a hot shoe at 135‹ C. and stabilized by (IV) heating in air at 300‹ C. and graphitized by (V) heating in an inert atmosphere at 2900‹ C.
Patent GB-622852-A (GB)
Abstract: 622,852. Frying-machines. ANHANGER, O. March 27, 1947, No. 8359. Convention date, June 25, 1942. [Class 28(i)] [Also in Group XXX] Pieces 7 of foodstuffs are placed on each tray of an endless belt of trays 4, when a tray swings out to guided horizontal position 4<SP>1</SP>, each tray then receiving and carrying its food piece over a heated frying plate 1 at the lower run of the belt, the upper run of the belt being well above the heating zone. As each tray comes around the chain wheel 2 a spring-pressed finger 6 assists it to pivot outward until its outer edge rests on suitable guide rails 8 so that each tray remains horizontal during its lower run. The trays at the upper run trail along a support path 5.
Patent GB-639567-A (GB)
IPC: H03G3/00
Abstract: 639,567. Valve circuits. RADIO CORPORATION OF AMERICA. May 15, 1947, No. 13154. Convention date, July 13, 1946. [Class 40 (v)] [Also in Group XL (b)] A circuit whereby a bias or other control voltage may be varied linearly and at a predetermined rate between predetermined limits comprises a condenser 23 which can be charged over resistance 21 from alternative sources A, B, the potential being limited in charging in a positive direction by means of a biassed diode 7; a reversed diode 9 similarly determines the final potential in charging in the negative direction. The rate at which the potential changes may be altered by introducing further capacity into the circuit by means of a switch 20. The arrangement may be used for fading television pictures in and out by controlling the gain of an amplifier 3.
Patent GB-780353-A (GB)
Abstract: 780,353. Calculating-apparatus. VEB TRIUMPHATOR-WERK. April 7, 1955, No. 10352/55. Class 106 (1). A catch 11 movable with a totalizer carriage of a calculating machine co-operates with slots 14 in a bar 2 to locate the carriage in different denominational positions, and, to ensure a proper movement from one position to the next, with teeth 15, 16 on a pair of stirrups 3, 4 pivoted on a rod 5 and independently loaded by springs 6, 7. To release the carriage for lateral movement, the catch 11 is rocked by means not shown from position a to a position b clear of the slot 14 and of the two sets of teeth 15, 16 which alternate with one another. As the carriage commences to move, the catch is partially restored by a spring 13 to position c in which it depresses one or other of the stirrups 3, 4 according to whether the catch 11 is passing a tooth 15 or a tooth 16. Thus, the carriage will be positively arrested in the next position by abutment of the catch 11 against the next tooth 15 or 16, the stirrup of which will not be depressed, and the catch will engage the next slot 14.
Patent GB-2028727-A (GB)
Title: Collapsible tripodes
IPC: F16M11/00
Filed: 1978-08-25
Abstract: First and second legs (4 and 5) of a collapsible tripod (1) are pivoted to a third leg (6) and interconnected by two interpivoted bracing links (15 and 16).To swing the first and second legs (4 and 5) towards and away from the third leg (6), first and second tie members (24 and 25) extend, respectively, from the first and second legs (4 and 5) to an actuating member (18) which is movable longitudinally of the third leg (6).To prevent relative movement between the legs (4, 5 and 6), when the tripod (1) is in its extended condition, a control link (32) extends from the pivotal interconnection between the two bracing links (15 and 16) and the actuating member (18) and locking means (21) are provided for releasably locking the actuating means (18) to the third leg (6).
Patent GB-2007527-A (GB)
Title: Gas Scrubbing Method and Apparatus
IPC: B04C5/28
Filed: 1978-11-07
Abstract: In a scrubber for removing impurities including solid hydrates from gases without clogging, gas 40 enters a pressure vessel 19 and passes through a separator, e.g. cyclone tubes 15 and risers 16. Impurities 41,42 accumulate in a storage zone. When they begin to collect in the separator, the pressure drop across the scrubber rises. This is detected by a detector 6 which controls valves 25 to 28 so that an anti-hydrate agent 60 (e.g. methanol) passes from a reservoir 32 and is sprayed through a nozzle 31 over the impurities. The pressure for spraying the agent 60 is provided by the pressure differential between the storage zone and an upstream region of the vessel 19, to which the reservoir 32 is connected through pipe 29. <IMAGE>
Patent GB-2037228-A (GB)
Title: Electrophotographic attachment for use with an optical projecting system
IPC: G03G15/26
Filed: 1978-11-29
Abstract: The attachment includes an electrophotographic belt 24 that is mounted on rollers. The belt 24 is rotated through a charging station 14, an exposure station 16, a toning station 18, an image transfer station 20 and a cleaning station 22. The toning station 18 includes a toning platen 44 which serves to assist in the application of toner from a supply to the belt. Four embodiments of the toning station are described. <IMAGE>
Patent GB-2013021-A (GB)
Title: Alkaline batteries
IPC: H01M4/50
Filed: 1978-12-07
Abstract: A cell of the type employing an alkaline electrolyte, a positive electrode mass containing a depolarizing agent comprising finely divided manganese dioxide and containing a conductive inert material, and a metallic negative electrode mass, characterized in that it contains at least one compound capable of permitting oxidation of lower manganese oxides during passage of recharging current through the cell, whereby the recharging capability of the cell from a substantially completely discharged state is improved.
Patent GB-2041915-A (GB)
Title: The preparation of bromo-p- terphenyl derivatives
IPC: C07C17/26
Filed: 1979-01-17
Abstract: A method of preparing a laterally substituted 4-bromo-p-terphenyl   <IMAGE> where X1 and X2 are selected from methyl or a halogen, preferably chlorine, or hydrogen, at least one of X1 and X2 being other than hydrogen, includes the step of converting a compound   <IMAGE> by a process involving a Diels Alder condensation reaction with a dieneophile, i.e. a compound containing a suitably activated >C=C< group of preferably a -C IDENTICAL C- group. The resulting bromo- compound may be used to form a liquid crystal compound   <IMAGE> by conventional Friedel Crafts acylation, Huang Minlon reduction and cyanation steps.
Patent GB-2041510-A (GB)
Title: Improvements to gas taps for supplying burners
IPC: F23D14/72
Filed: 1979-01-22
Abstract: The invention relates to gas taps for supplying burners. The gas tap comprises an electromagnetic valve 5 and thermocouple safety device 6, control means being provided for acting on the valve 8 of the electromagnetic valve 5 during lighting; these control means comprise a cocking lever 18 which is engaged by a locking member 11 and mechanical connection means between this cocking lever and the electromagnetic valve. <IMAGE>
Patent GB-2014522-A (GB)
Title: A driver's cab for commercial vehicles
IPC: B62D33/06
Filed: 1979-02-07
Abstract: In a driver's cab mounted on four spring support means located at the corners of the cab, each support means 3 comprises two co-axial pneumatic springs incorporating rolling bellows. One of the springs is a bearing spring 4 for supporting the cab and the other a stabilising spring 5 for stabilising the cab. The bearing springs 4 on the longitudinal sides of the cab are interconnected by pipes 8 containing a variable throttle 9 while the stabilising springs 5 are connected transversely of the cab by pipes 10, also containing a variable throttle 11. The degree of throttling may be adjustable in dependence upon road conditions and/or vehicle speed. <IMAGE>
Patent GB-2023151-A (GB)
Title: Extruded or Injection Moulded Products Obtained From Polyolefines and Cellulosic Materials
IPC: B29B17/00
Filed: 1979-02-08
Abstract: An homogenized and granulated material containing by weight 40 to 80% polyolefine, 60 to 20% cellulosic material and optionally up to 5% metal is extruded or injection moulded to form products, especially cores for paper rolls. Preferably, the material contains 60 to 80% polyethylene, 40 to 20% paper and/or cardboard and up to 5% metal foil. The usual source of the material is packaging material refuse. <IMAGE>
Patent GB-2016398-A (GB)
Title: Annular wings and aircraft with such wings
IPC: B64C39/06
Filed: 1979-02-23
Abstract: An annular wing comprises a rigid annular body (12) of a substantially uniformly symmetrical configuration having an annular positive lifting surface and a chord line (18) coincident with the segment of radial line on the surface of an inverted truncated cone to form a dihedral between laterally opposite regions of the wing and a decalage between longitudinally opposite regions of the wing, relative to the line of flight. The attitude of the wing in flight is controlled by adjusting the relative position of center of gravity and aerodynamic center. The wing can be employed, without requiring directional stabilising surfaces, in powered or non- powered aircraft, including tethered craft such as kites. <IMAGE>
Patent GB-2044315-A (GB)
Title: Inflatable Frame Tent
IPC: E04H15/20
Filed: 1979-03-14
Abstract: A shelter for use on beaches, in gardens or in the countryside and made of flexible material includes a tripod frame formed from inflatable frame members and has panels extending between the frame members. The frame members are in the form of substantially linear tubes which may be interconnected so as to provide independently inflated entrance frame and rear leg. <IMAGE>
Patent GB-2024220-A (GB)
Title: Novel oxothia compounds, processes for their preparation, pharmaceutical preparations containing these compounds and their use as a medicinal active compound
IPC: C07D417/12
Filed: 1979-06-22
Abstract: 2-Oxo-2,3-dihydro- benzo[b]thiophen compounds of the formula   <IMAGE> in which Ph is a substituted or unsubstituted 1,2-phenylene radical, X is oxygen or sulfur, R1 is a substituted or unsubstituted heteroaryl radical bonded via a carbon atom and R2 is hydrogen, and their salts with bases have peripheral analgesic properties. They can be prepared by methods known per se and can be used as the active ingredient in pharmaceutical preparations.
Patent GB-2026246-A (GB)
Title: Electrical circuit-breaker
IPC: H01H71/14
Filed: 1979-07-17
Abstract: An electrical overload circuit breaker utilises as the current- responsive tripping mechanism a solenoid coil which is constituted by a helical spring 8 of shape memory effect material and which mechanically acts on an armature 7, 10. There is a non- SME compression spring 9 which also acts on the armature 7, 10 but in a direction opposing the SME spring 8. The current is passed through the SME spring 8 and, when it becomes excessive, the armature is urged both mechanically and electromagnetically in a tripping direction, to move a toggle linkage and over-centre and permit a spring 3 to open contacts 1,2. <IMAGE>
Patent GB-2055757-A (GB)
Title: Liquid container
IPC: B67D3/00
Filed: 1979-08-15
Abstract: A container 1 for liquid having a pipe 3, 2, 4 by means of which liquid can be removed by syphoning has a means, to close the pipe inlet as the liquid level falls, so that the pipes remain full of liquid and the syphon effect is not destroyed. The closing means is preferably a float operated valve. An outer shell can be provided around the container 1 also to enclose the pipe 4. Provision of such an outer shell makes the container heat- insulating. The space between the outer shell and the container 1 may be evacuated to produce a vacuum flask. <IMAGE>
Patent GB-2031850-A (GB)
Title: Vessel having an installation for launching a lifeboat
IPC: B63B23/34
Filed: 1979-08-31
Abstract: A vessel has at least one installation for launching a lifeboat, comprising one or more sets of tackle 6,7 connected to means for hauling in or paying out said tackle, the free end of said tackle being releasably connected to the lifeboat at a suspension point 9, and a cradle 19 which is provided with rollers and which guides the lifeboat in its movement along the wall of the vessel when the lifeboat is launched, said cradle being connected by a projecting end to the free part of the tackle at 20, whereby the suspension point 9 is situated between the central longitudinal plane 21 and that side of the lifeboat which faces the wall of the vessel. <IMAGE>
Patent GB-2060225-A (GB)
Title: Multi-programming data processing system process suspension
IPC: G06F9/46
Filed: 1979-09-29
Abstract: Each process in a multi-process computing system using so-called capabilities may have associated with it a process dumpstack protected by the capability mechanism. The functions of this dumpstack are (i) to provide the state of the process at the point at which it was suspended and (ii) to stack (or nest) information relating to the invoked procedures (i.e. sub-routines) of the process. Thus there is a fixed sized portion containing principally the machine registers, the indicators and the watchdog timer values and a variable sized portion containing information related to each nested procedure. Each stack link is of fixed size and contains three items:- relativised instruction address, the code block capability and process capability pointer list block capability. This arrangement is enhanced to allowtwo additional classes of information to be stored in each link namely (a) an indication of the data and capability registers preserved during the domain change procedure and (b) descriptors for local storage segments. The use of descriptors for local storage allows a pool of storage particular to the process to be allocated on a segmented basis with the security of the capability mechanism extended into that local storage area. The descriptors for local storage segments resemble closely SCT entries (i.e. they contain sumcheck, base and limit values) and they are relative to a new protected stack, the local store stack, which is referenced by a hidden capability register C(L). The processor module is provided with a new instruction "subset local store" for use in local store segment allocation and automatic de-allocation occurs when a return is made from the procedure in which the local segment was allocated. Such allocation and de-allocation mechanisms use the indications which takes the form of a primary descriptor held in the most significant eight bits of the IAR word. This descriptor is allocated as follows:- (i) zero, no stacked registers or local segments allocated, (ii) m.s.b. = 1, stacked registers to be passed and (iii) I.s.b. 1-7 = 1, indicates the number of local store segments allocated. Associated with the stacked register set is a one word descriptor which indicates the registers stacked.
Patent GB-2033731-A (GB)
Title: Scouring device
IPC: A47L13/18
Filed: 1979-10-30
Abstract: A glove or mitten for use in scouring consists of a glove 12, preferably of waterproof elastomeric material, e.g. a conventional rubber glove, having one or more patches 14, 16 of abrasive material on its external surface. Each patch 14, 16 may be a discrete element, e.g. of non-woven plastics fabric, adhered to the glove, or an abrasive region formed on the glove surface, e.g. by bonding abrasive particles. Preferably the patches are disposed so that when an article is gripped with a gloved hand it is contacted largely by abrasive material. There may be patches of different degrees of abrasiveness for different uses. <IMAGE>
Patent GB-2062175-A (GB)
Title: Solenoid-operated valve
IPC: F16K31/08
Filed: 1979-10-30
Abstract: A valve for controlling the flow of fluid through a port 2, 3 has a valve member 4, 5 controlled by a solenoid 8, 9. A permanent magnet 14 acts to hold the valve member 4, 5 in a port- closed position. The arrangement may be such that on energisation of the solenoid the valve member is polarised to provide a repulsive force between the valve member and magnet to open the valve. Spring biassing may be applied to the valve member. <IMAGE>