baber/WOPTO huggingface dataset:
Patent GB-1277866-A (GB)
Title: Printer
Inventor: CRALLE WALTER ODRO JR
IPC: B41J7/02
Filed: 1970-12-03
Abstract: 1277866 Printer control circuits INTERNATIONAL BUSINESS MACHINES CORP 3 Dec 1970 [22 Dec 1969] 57379/70 Heading G4H The sudden change in relative velocity between a platen 12 and type member 11 which occurs on printing impact is detected to provide a signal 42 controlling the timing of the printer operation. Type member 11 is normally held away from platen 12 by supplying a low level reverse bias from circuit 51 to torque motor 15. A print signal 52 sets trigger 53 to produce a signal 54 which is applied to motor 15 via adding circuit 55 and differential amplifier 22. The motor accelerates until its back e.m.f. detected by bridge 30 reduces the forward drive signal to maintain the velocity of type member 11 constant until impact. On impact, the type member is rapidly decelerated and rebounds, the negative output of bridge 30 then passing through diode 41 to reset trigger 53. Monostable circuit 57 supplies reverse drive to motor 15 for a predetermined period and then the motor is driven to its final rest position by reverse bias circuit 51. The rebound signal 42 may also be used to operate an escapement mechanism 17 and to enable a data input gate 18.
Patent GB-1260479-A (GB)
Title: 1-aminomethyl-indole derivatives and a process for producing 1-aminoalkylbenzodiazepine derivatives from them
IPC: C07D243/36
Filed: 1968-12-05
Abstract: 1,260,479. Indoles; benzodiazepines. SUMITOMO CHEMICAL CO. Ltd. 5 Dec., 1968 [8 Dec., 1967 (2); 9 Dec., 1967; 21 Dec., 1967], No. 57773/68. Heading C2C. Indole and benzodiazepine derivatives are prepared by the following route: (R<SP>1,2</SP>=H, halogen, NO 2 , C 1-4  alkyl or alkoxy, haloalkyl; R<SP>3</SP> = H, C 1-4  alkyl; R<SP>4</SP> = C 1-4  alkyl; or -NR<SP>3</SP>R<SP>4</SP> = 5- or 6-membered ring which may be substituted and may contain a further heteroatom; A = C 1-5  alkylene), optionally followed by salt formation at any stage. Reference has been directed by the Comptroller to Specifications 1,040,548; 1,077,358; and 1,098,242.
Patent GB-1260220-A (GB)
Title: Gas pressure regulator kiosk
Inventor: REDMAN MAURICE
IPC: F17D1/05
Filed: 1969-11-27
Abstract: 1,260,220. Gas distribution systems; heating buildings. SOUTHERN GAS BOARD. 11 Nov., 1970 [27 Nov., 1969], No. 58168/69. Headings F4U and F4X. In a gas pressure regulator kiosk incorporating a gas pressure regulating system for reducing the pressure of a high pressure gas, e.g. natural gas, to a predetermined value, the high pressure gas is warmed to a temperature such that on reduction of its pressure in the regulating system its temperature does not fall to below 0‹ C.; the occurrence of icing within the kiosk is thereby prevented. The high pressure gas which enters through inlet pipe 10 is passed through a coil disposed within a heat exchanger tank 14 forming part of a closed natural convection hot water system incorporating a pair of gas-fired boilers 31, 32. Hot water is also supplied to a pair of radiators 39, (40, Fig. 2) mounted adjacent the tank. A system of relays 47 controls the supply of gas to the boilers, and hence the heating of the hot water system, in dependence of temperature sensing devices one of which senses the temperature of the reduced pressure gas in the outlet pipe 18. Other sensing devices are provided to ensure that (a) the ambient temperature in the kiosk does not fall below a set value and (b) the temperature of the water does not rise above a set value. An expansion tank (50, Fig. 2) is provided to accommodate fluctuations in the volume of liquid, which may be a mixture of water and glycol, in the hot water system due to fluctuations in temperature. The pressure regulating system comprises a pair of regulators 16 and 17 controlled by respective power pilots operated by gas taken from the high pressure gas supply under the control of gas pressure relays 20 operated in response to the downstream pressure of gas in the outlet pipe 18. The gas for operating the pilots is passed through respective vessels 24, 28 which remove any water present in the gas.
Patent GB-1485954-A (GB)
Title: Treatment of effluent slurries
IPC: C01B17/06
Filed: 1973-12-19
Abstract: 1485954 Sulphur recovery; H 2 S removal BRITISH GAS CORP 16 Dec 1974 [19 Dec 1973] 58748/73 Heading C1A Elemental sulphur is removed from aqueous slurries or suspensions by mixing with an organic liquid to form a non-permanent emulsion, allowing the emulsion to break to form an upper, substantially sulphur-free aqueous phase, a dewetted substantially sulphur-saturated organic phase below the aqueous phase and a bottom phase consisting of elemental dewetted sulphur, the three phases being separated from one another; the organic liquid is substantially water-insoluble, has a density between 1À20 and 2À07 g./ml. is a partial solvent for sulphur at the temperature at which the emulsion breaks, and has a boiling point substantially lower than that of sulphur. The process may form part of a process for freeing gases and liquid hydrocarbon mixtures from H 2 S in the Stretford process. In the examples, the organic liquid is o-dichlorobenzene, other organic liquids specified are sym-tribromobenzene, halogenated naphthalenes, e.g. α-dichloronaphthalene, and dialkylsulphides, e.g. dimethyldisulphide.
Patent GB-1454079-A (GB)
Title: Microwave oven
IPC: H05B6/74
Filed: 1973-12-20
Abstract: 1454079 Microwave oven LITTON INDUSTRIES Inc 20 Dec 1973 [16 May 1973] 59045/73 Heading H5H Even heating without mode stirrers is provided by a microwave cavity which is bounded in part by a tapered structure 25 which diverges in the direction towards the interior of the cavity and by mounting the microwave source 34 with at least its radiating portion 37 within the tapered portion so that no supply waveguides are required, the structure being separated from the heating zone of the cavity by a microwave transmissive (ceramic) plate which forms a shelf for the heating zone. In the rectangular oven shown, a choke door seal 22 (filled with dielectric material not shown) co-operates with a vertically hinged door. The base of the oven has an annular flange 24 provided with a circular opening in which is mounted the frusto-conical structure 25. The provision of a cylindrical continuation 28 of the conical surface 27 having a radius equal to the wavelength or a multiple of the magnetron wavelength is stated to improve the energy distribution in the cavity. The magnetron 34 is secured to the base of structure 25 by a flange 33. Cooling holes may be provided in the surface 27 adjacent the hole 32 through which the radiator 37 projects.
Patent GB-1456868-A (GB)
Title: Device for handling yarns
IPC: D03D47/34
Filed: 1973-12-20
Abstract: 1456868 Clamps and yarn cutters RUTITE STRAKE BV 20 Dec 1973 [22 Dec 1972] 59072/73 Heading D1E A yarn clamp or weft cutter comprises an arm 6 resiliently urged upwardly by its pivot 7 and provided with a coil 8 which when it receives an electric pulse causes eddy currents in a disc on the arm 6 to urge the arm towards a holding electromagnet 12 which retains the arm 6 and hence the jaws 1, 2 in the closed position. The construction can be used without the electromagnet 12 as a yarn cutter.
Patent GB-1200007-A (GB)
Title: Tree harvester
IPC: A01G23/083
Filed: 1968-12-20
Abstract: 1,200,007. Felling trees. BALDWINLIMA-HAMILTON CORP. 20 Dec., 1968 [22 Dec., 1967], No. 60698/68. Heading A1E. [Also in Division B5] A method of harvesting trees comprises placing a tree severing device at a position on a tree, supporting the device on the tree, severing the tree while the device is in said position, moving the device downwardly to a new position, and while in the new position actuating the device to sever the tree a second time. In apparatus for carrying out the method, a harvesting device is carried at the end of a telescopic boom TB of a crane T whereby it can be placed on the upper part of a standing tree. The device is mounted upon a pivot 108 on the boom and can be aligned with the tree by a hydraulic cylinder. The pivot is carried by an extension 19 of an upper frame 10 formed with an arcuate recess 14 to receive the tree. A pin 18 is located in the frame and pivotally supports a pair of arms 24 which are formed with jaws 25, 26 for engaging the tree when the arms are acted on by hydraulic devices 30. The pin 18 also pivotally supports a pair of plates 36, 37 which are formed with shear blades 39, 40 for severing the tree when urged together by hydraulic devices 45. The upper frame is provided with sleeves, 57, 58 which receive guide rods 55, 56 secured to a lower frame 50 which is substantially identical to the upper frame and pivotally carries clamping jaws 76, 77 operable by hydraulic devices 75 and shear blades 83, 84 actuated by hydraulic devices 90. The upper and lower frames are movable vertically with respect to one another by hydraulic cylinders 60, 61 carried by the upper frame and having rods 62, 63 connected to the lower frame. In operation, with the jaws and blades retracted, the crane is operated to position the device near the top of a tree and the jaws 25, 26 and 76, 77 are actuated to grip the tree. The upper blades 39, 40 are actuated to sever the top of the tree and after retraction of the jaws 76, 77, the lower frame 50 is moved downwardly so that its lower edge 52 breaks off the branches and knife edges, 78, 78<SP>1</SP> on the lower jaws cut the stumps closer to the tree. The lower jaws then grip the tree, the upper jaws are retracted and the upper frame lowered to a new position wherein the jaws 25, 26 clamp the frame to the tree while the blades 39, 40 sever a length from the tree. The operation is repeated until the frame 50 reaches the base of the tree and the blades 83, 84 are actuated to sever the tree near its base. A device actuated by a rod 105 is operable to topple the top section of the cut tree forwardly and the succeeding sections, which are severed at both ends, backwardly on to a shoot 120. In another method of operation, the upper frame is moved upwardly to break off the branches, the jaws 25, 26 being formed with knife edges 79, 79<SP>1</SP>.
Patent GB-1195650-A (GB)
Title: Method for Polymerising Ethylene by Use of Novel Catalyst System
IPC: C08F10/00
Filed: 1968-12-23
Abstract: 1,195,650. Polymerizing ethylene. SUMITOMO CHEMICAL CO. Ltd. 23 Dec., 1968 [28 Dec., 1967], No. 61152/68. Heading C3P A crystalline homo- or co-polymer of ethylene containing at least 90 mole per cent ethylene is produced by contacting ethylene, either alone or together with another unsaturated hydrocarbon, in the presence or absence of hydrogen, and at an ethylene partial pressure of from 1 kg./ cm.<SP>2</SP> to 300 kg./cm.<SP>2</SP> with a catalyst composed of (1) a substance obtained by reaction of an orthovanadate compound represented by the formula VO(OR<SP>1</SP>) 3  wherein R<SP>1</SP> is a hydrocarbon group with a phosphoric acid or phosphoric acid ester represented by the formula wherein R<SP>2</SP> is a hydrogen group and m is 1 or 2 and (2) a-substance having the formula wherein R is a C 1  to C 8 -hydrocarbon group, X is an atom or group selected from halogen, alkoxy groups and hydrogen and n is any number greater than 0 and not more than 3, including the case where said substance is a mixture of an organo-aluminium compound and an aluminium halide. Specified comonomers are other olefins and diolefins. The polymerization is preferably carried out in the presence of a solvent, e.g. a hydrocarbon or halohydrocarbon liquid. Component (1) of the catalyst is suspended in the solvent or supported on a carrier. In the examples ethylene is polymerized in heptane using a catalyst system comprising (a) the reaction product of tri-n-amyl orthovanadate and monon-butyl phosphate together with ethyl aluminium sesquichloride, (b) the reaction product of tri-n-butyl orthovanadate and phosphoric acid together with ethyl aluminium dichloride, (c) the reaction product of triethyl orthovanadate and di-n-butyl phosphate together with triethyl aluminium, (d) the reaction product of tri-w-octyl orthovanadate and di-n-octyl orthophosphate together with diethyl aluminium monochloride or (e) the reaction product of triisoamyl orthovanadate and monoethyl phosphate together with ethyl aluminium sesquichloride. A copolymer of ethylene and propylene is also produced using catalyst system (a).
Patent GB-1234890-A (GB)
Title: Pressure transducers
Inventor: RIVKIN ILIA YAKOVLEVICH
IPC: G01L9/00
Filed: 1969-12-23
Abstract: 1,234,890. Measuring fluid-pressure electrically. VSESOJUZNY NAUCHNO-ISSLEDOVATELSKY I PROEKTNO-KONSTRUKTORSKY INSTITUT KOMPLEXNOI AVTOMATIZATSII NEFTYANOI I GAZOVOI PROMYSCHLENNOSTI. Dec.23. 1969. No.62524/69. Heading G1N. A pressure transducer comprises abar 3, Fig. 1, stretched between two similar Bourdon tubes 2 supplied with a fluid via tubes 11, 4, 5 whose pressure is to be determined, whereby the tension in the bar 3 varies with expansion of tubes 2 and is measured by its natural resonant oscillation frequency, established with the aid of a driver electromagnet 6 and pick-ups 7. Alternatively electromagnet 6 is fed periodic short pulses and in the intervals acts as a pick-up member. The upper ends of tubes 2 are fixed in a mounting block 1 and the other ends loaded with weights 9 to adjust the resonant frequency range.
Patent GB-667351-A (GB)
Abstract: 667,351. Bed curtains. FRASER, J. A., and CRIGHTON, P. F. March 29, 1950. No. 7909/50. Class 52 (v). A support for mosquito nets or the like for attachment to bed frames comprises a clamp for attachment to a bed frame member the clamp being provided with a socket with which an extensible rod can be engaged and held upright therein. As shown, the clamp 11 is provided with a socket 12 for the end of the bed member 10 and with a socket 14 into which is fitted a part 15 of an extensible rod. The part 15 has provided thereon a bracket 16 provided with a through aperture 17 in which the second part 18 of the extensible rod may be adjustably clamped by a screw 19. A ring 22 is provided to prevent disengagement of the parts 15, 18. The part 18 is provided with a cord 21 over which the mosquito net is hung. The intermediate and end supports of the portable bed described in Specification 571,746 may be provided with sockets for the extensible rods.
Patent GB-2000715-A (GB)
Title: Apparatus for removing heat exchanger tube bundles
IPC: B23P19/02
Filed: 1978-06-26
Abstract: Apparatus for moving a tube bundle out of or into a heat exchanger shell consists of an elongated frame structure including a pair of parallel spaced beams 1, a mobile carriage 33 to support the tube bundle and mounted on the parallel beams for movement along them, clamps 14 to connect and lock the elongated frame structure to the shell of the heat exchanger, a mobile sub-frame 15 carrying a hydraulically-operated force exerting mechanism 16 to be connected to the tube bundle to move it out of the sheel, and laterally positioned stops 26 along the length of the frame structure (engageable with a crossbar 24 of the sub-frame 15) to provide opposing thrust surfaces to the thrust exerted by the force-exerting mechanism 16 so as to effect movement of the tube bundle along the frame structure. <IMAGE>
Patent GB-2003576-A (GB)
Title: Lining passageways
IPC: F16L58/10
Filed: 1978-07-21
Abstract: The invention permits the lining of a passageway or pipeline with a resilient but robust, semi-rigid plastics pipe. The invention enables the lining of pipelines and passageways of long length by extruding the lining tube on site, deflecting the tubes so that it is deflected into smaller diametral size, holding the tube in the deflected condition, feeding the deflected and held tube into the passageway to be lined, and releasing the hold on the tube so that it deflects or is deflected back to its original form and lines the pipeline or passageway. <IMAGE>
Patent GB-2004883-A (GB)
Title: New phloroglucinol derivatives, their method of preparation and their use as pharmaceuticals
IPC: C07D295/108
Filed: 1978-09-25
Abstract: Novel phloroglucinol derivatives of the formula:   <IMAGE> (wherein R is H or CH3) and their non toxic salts are useful as vasodilating agents. They are made by reaction of 4-pyrrolidino- butyronitrile with the appropriate phloroglucinol in the presence of ZnCl2 or AlCl3.
Patent GB-2030476-A (GB)
Title: Electrostatic precipitator
IPC: B03C3/45
Filed: 1978-10-02
Abstract: An electrostatic precipitator is disclosed comprising a series of parallel collector electrode plates (12) of similarly corrugated form, with the continuously curved and successive crests and valleys of the corrugations of each plate positioned in opposition to the similar crests and valleys of the adjacent plates so as to form gas-flow channels that successively converge and diverge, forming alternate narrow and wide regions along the direction of flow (14) between each pair of plates. Of one common electrical polarity, these collector electrode plates cooperate with an array of discharge filament electrodes (10) of opposite common polarity located between each pair of plates, with one such filament electrode centered in and extending longitudinally of each of the wide regions defined between the opposing valleys of the adjacent plates. The mean spacing between plates is substantially in the range from half the corrugation wave length to the corrugation wave length, and the peak-to-peak corrugation magnitude or height to be substantially in the range between ten and twenty percent of the corrugation wave length. <IMAGE>
Patent GB-2011968-A (GB)
Title: Patterned non-woven fabrics
IPC: D04H1/55
Filed: 1978-11-08
Abstract: A non-woven web comprising fusible fibres is fusion bonded in a pattern to form semi-transparent areas in which the fibres are fused substantially into a film and other areas in which the fibres remain substantially fibrous and these other areas are impregnated with a pigment so as to increase the contrast in the pattern. Preferably the fibre weight of the web is below 130 g/m<2>
Patent GB-2013866-A (GB)
Title: Concentric tube heat exchanger.
IPC: F28F9/24
Filed: 1979-01-04
Abstract: In a heat exchanger comprising an annular fluid passage formed between an outer tube and an inner tube (e.g. 16,18), or a concentrically arranged pair of such passages (Figs 1 & 2), fluid turbulating means extending from one wall surface to the other in the or in each said passage comprises a sleeve concentric with said tubes and having fluid - turbulating formations therein, or (as shown) a plurality of such sleeves (e.g. 42,44) arranged one within the other. The fluid turbulating formations may be formed by slitting at intervals and bending to provide triangular wave formations (e.g. as shown). A separator member 50 may be positioned between the sleeves 42,44. <IMAGE>
Patent GB-2021378-A (GB)
Title: Improvements in animal feeding apparatus
IPC: A01K5/01
Filed: 1979-03-20
Abstract: Animal feeding apparatus comprises a curved sheet metal trough 10 having substantially vertical upper longitudinal side edge portions, two spaced longitudinal metal members 11, 12 of inverted-U section lying along the side edge portions of the trough element respectively, each edge portion lying within the associated longitudinal member and being secured to the inner surface of the outer side flange thereof by spot welding, and end walls 14 extending across the opposite ends of the trough element. Mounted on one or both longitudinal members is an apertured frame member 15 comprising vertically spaced horizontal frame members separated by spaced vertical frame members 17. <IMAGE>
Patent GB-2047526-A (GB)
Title: Storage racks
IPC: A47B73/00
Filed: 1979-03-23
Abstract: Suspended or free-standing foldable RACK having compartments for e.g. bottles or pens, and made of wire, strip, tubing or the like, the members being connected together by eyelets formed in some members and receiving other members. <IMAGE>
Patent GB-2052143-A (GB)
Title: Microwave device of the magnetron type
IPC: H01J25/50
Filed: 1979-06-22
Abstract: A magnetron arrangement includes a plurality of side-by-side multicavity strapped anode structures 1, each with a cathode 7, adjacent structures being coupled to each other along their length via a slot 11 between two cavities, one from each structure. A plurality of axially spaced strap pairs 8, 9 are incorporated in each structure at the same axial positions and with an axial spacing not greater than half a wavelength of the generated oscillations. To remove mode degeneracy and enhance stability of operation, the straps may be open, with the gaps of successive straps of each structure disposed in a helical manner about the axis of the structure (Figure 4). The output, of which there may be more than one to feed different loads, is via loop 18 and coaxial line 17. A.C. energization may be employed (Figure 3), each anode operating in turn during a cycle. <IMAGE>
Patent GB-2030564-A (GB)
Title: Isolation of vanadyl porphyrins from a mixture thereof with hydrocarbons and/or heterohydrocarbons
IPC: C07D487/22
Filed: 1979-08-20
Abstract: Vanadyl porphyrins are isolated from admixture with hydrocarbons and/or hetero hydrocarbons by a combination of steps including adsorption on silica, adsorption on alumina and adsorption on a functionalised solid product. The latter may be prepared from an inorganic oxide containing surface hydroxyl groups, e.g., silica, by reacting the oxide in a first stage with a haloalkoxy- or haloaryloxy-silane. The first stage product is then reacted with an aqeuous solution of an inorganic sulphite to give a product containing sulphonate groups. These can be converted to sulphonic acid groups by an optional third stage treatment with dilute mineral acid. Suitable sources of vanadyl porphyrins are crude oils and fractions thereof, particularly residue fractions.
Patent GB-2030855-A (GB)
Title: Electric tooth-brush
IPC: H01H36/00
Filed: 1979-08-24
Abstract: An electric tooth-brush comprises a brush head 1 and a housing 8 containing a power source (2), a drive motor 4 and a switch 3 for connecting the source to the motor. The switch 3 comprises semiconductor elements and has an operating electrode 6 connected to a conductive shaft 11. Conductive contact of electrode 6 with a user's mouth is established via a moisture film in a groove 15 to turn on the switch. The head 1 may alternatively be conductive or porous. A blocking button 12 connected to a blocking electrode 10 enables the brush to be turned off while in the mouth. Alternatively, the brush may have a ring conductor (7) or parallel longitudinal strips around the housing 8 or within the housing for conductive or capacitive coupling to the user's hand. Two operating electrodes connected to two conductors may be provided and arranged to be bridged, e.g. by a finger. <IMAGE>
Patent GB-2030821-A (GB)
Title: Tone detector for a telephone answering system
IPC: H04M1/654
Filed: 1979-09-13
Abstract: A tone detector, e.g. dial tone, for an automatic telephone answering system comprises a signal detector responsive to voice and steady tone signals for providing an indication of the status of an incoming signal on a telephone line, and a processor for monitoring line signal status to determine the presence of dial tone and to automatically disconnect the system from the telephone line. The determination of dial tone is made based upon the continuous existence, over a predetermined time interval, of an incoming line signal status representative of a steady tone signal. When the automatic telephone answering system includes a message recording system and remote access message playback a processor actuated circuitry for inserting a blank interval in an incoming tone signal prior to being recorded is provided. This prevents replayed tones from disconnecting the system from the telephone line.