baber/WOPTO huggingface dataset:
Patent GB-1446446-A (GB)
Title: Apparatus for the construction of bridge support systems
IPC: E01D2/04
Filed: 1973-08-15
Abstract: 1446446 Shuttering for concrete bridges DYCKERHOFF & WIDMANN AG 15 Aug 1973 [18 Aug 1972] 38644/73 Heading E1G Apparatus for use in successively casting cantilever sections of a concrete bridge box section girder 3 having overhanging decking 6', comprises outer shuttering 7 reinforced by members 8 and 8' supported by overhanging girders 9 of a cantilever construction carriage attached to the members 8, the girders having travel means 10 and associated fixed supports 11 for alternately bearing on the underside of already constructed parts of the bridge and travel means 13 and fixed supports 14 for alternately bearing on rails on the upper side of the already constructed parts of the bridge, and half frames 12 connected to the girder 9 at the rear end of the shuttering and extending around the edges of the bridge decking to support the travel means 13 and the fixed supports 14. The carriage is supported by the fixed supports 11 and 14 (hydraulic jacks) during concreting and by the travel means (rollers) during movement. The inner shuttering is foldable and supported on a truck during movement. The lower shuttering 8' is pivoted about a horizontal axis at one end for movement past a pier. The upper inner ends of the half frame may be interconnected to brace them during movement. In modification the rear supports may be further half frames and the girders may comprise two ports pivoted together or may be of box section and telescopic. The lower shuttering 8 may be supported from the girders by adjustable hydraulic jacks to vary the height of the box side walls. In a method of construction of a bridge having a number of bays two carriages are used back to back to construct the section above a bridge pier and the first sections forwardly and rearwardly and then each moves outwardly until mid span, when an auxiliary structure is utilized to move the carriages to the next pier. The auxiliary structure comprises a box section or truss girder spanning at least one bridge bay, a hoist-movable along said girder for supporting the carriages during their movement to a new location, and means for moving the auxiliary girder relative to the bridge decking.
Patent GB-870239-A (GB)
Title: Lime refractories and method of making same
Inventor: MCALLISTER ROBERT WRIGHT
IPC: C04B35/057
Filed: 1959-11-16
Abstract: A stable high-temperature lime refractory material comprises the following composition by weight:- ..CaO.85 to 97%, ..Fe2O3.1 to 10%, .and.MgO.2 to 5%,  where the CaO may be derived from finely ground high-calcium hydrated lime Ca(OH)2 or carbonate CaCO3, the Fe2O3 may be derived from pyrophoric iron or such compounds as the oxalate, citrate and nitrate, and the MgO from hydrated dolomite, dolomitic limestone or dolomite.  The process of making may include the dead burning of lime in the presence of MgO and decomposible iron compound or heating the thoroughly mixed materials, preferably crushed to 20-80 micron particle size (e.g. by wet ball-milling), at 2500 DEG to 3000 DEG F.  The mixture may also be extruded in bricks or pressed in a mould and heated at 2600 DEG  to 2800 DEG F. prior to removing and cooling.  Preferably the resulting dobies are re-crushed and re-moulded prior to re-heating at 2600 DEG  to 3000 DEG F. Specifications 663,891 and 663,893 are referred to.
Patent GB-1020644-A (GB)
Title: Method of covering flexible tubing and apparatus therefor
Inventor: STARK FRANK ARTHUR
IPC: B29C63/20
Filed: 1963-10-04
Abstract: 1,020,644. Covering flexible tubes. SUREFLEX CO. Ltd. Dec. 31, 1964 [Oct. 4, 1963], No. 39184/63. Heading F2P. A method of covering flexible metal-sheathed tubing or flexible tubing fits the end of the said tube 24 with a stopper of larger diameter at 25 than the flexible tube and inserts them into a rigid feed-tube 10, stretches over the end of the feed-tube 10 a tube 26 of elastic plastics material, introduces air into the annular space between the flexible tube and the feed tube to force the stoppered end of the flexible tube into the elastic tube 26 whilst compressing the one and expanding the other and then releases the pressure of air inside the feed tube to allow the plastics tube to contract into the flexible tube. An annular head 13 with hinged jaws 17 can be drawn into the feed-tube 10 by a pneumatic ram 15 lifter the end of the elastic tube 26 has been stretched on to the jaws. A safety guard 18 mounted rotatably on supports 32, 33 is then drawn towards the head and rotated when in position so that a hose 22 thereon is locked behind a hook member 23 connected to the ram 15 to retain the elastic tube on the jaws as in Fig. 2. Pressure is then applied in the feed tube 10 to force the flexible tube 24 and stopper into the elastic tube. When the stopper reaches the end of the guard tube 18 a probe 28 mounted on the front end of the stopper 25 drives a block 29 mounted at 19 in a slidable rod against a stop 38. The movement of the rod actuates a valve 30 whereby the apparatus is brought back to its rest position (Fig. 1, not shown).
Patent GB-866802-A (GB)
Title: Process for the preparation of norcamphidine and its 2-substituted homologues
Filed: 1957-12-17
Abstract: Norcamphidine and 2-substituted norcamphidines of the formula: <FORM:0866802/IV (b)/1> in which R represents hydrogen or a hydrocarbon residue, are prepared by reacting hydrazoic acid, in an inert solvent, with norbornylene, norborneol, or norbornyl halide in the presence of a catalyst consisting of a concentrated mineral acid, an anhydrous metal salt, or an inorganic acid halide, the norcamphidein formed by ring enlargement then being either reduced with nascent hydrogen or by catalytic hydrogenation, or reacted with an organometallic compound, for example of the formula R-Li or R-Mg-halide (where R is a hydrocarbon residue) to give the saturated base norcamphidine or a 2-hydrocarbon-substituted homologue thereof, respectively.  Hydrohalide and tin halide salts are described.
Patent GB-1203445-A (GB)
Title: Resistance sensing probes for water softeners
Inventor: RAK STANLEY FRANK
IPC: G01N27/07
Filed: 1967-08-29
Abstract: 1,203,445. Conductivity probes. CULLIGAN Inc. Aug.29, 1967 [Sept.30, 1966; Feb.16, 1967], No.39538/67. Heading G1N. In an ion-exchange resin water softening tank, the state of the ion-exchange resin is monitored by a resistance measuring probe attached to or suspended from the top of the tank. The probe comprises two pairs of electrodes for measuring the resistance at a higher and a lower level respectively and in use the electrodes are connected in a bridge circuit and regeneration of the ion-exchange resin is automatically initiated when the output of the bridge reaches a predetermined level. As shown in Fig.2, the probe comprises four graphite or platinized metal ring electrodes 39, 49, 53, 55 mounted on reduced diameter portions of respective plastics tube sections 26, 41, 52, 54 which reduced diameter portions also fit into the ends of the adjacent sections. The interior of the probe is filled with a non-conducting resin. In a modification, Figs 8 to 10 (not shown), the probe is suspended by a flexible plastics sheath (62) and has a metal weight (68) attached to its lower end. As shown in Fig. 12, the probe comprises four radially extending platinized titanium electrodes. Electrodes 78<SP>1</SP>, 78<SP>1</SP> are connected to a common lead 83 and electrodes 78, 79 are connected to individual leads 82, 82. The body of the probe is of insulating epoxy resin moulded around the electrodes and leads. A weight (87) may be attached to the lower end of the probe. A third type of probe, Figs. 16 to 18 (not shown), is similar to that shown in Fig.12 except that the probe body comprises two shell halves (104), the interior of the probe being filled with resin.
Patent GB-1115060-A (GB)
Title: Continuous production of foamed synthetic resins
Inventor: UNTERSTENHOEFER LEO
IPC: C08J9/30
Filed: 1965-09-17
Abstract: Foamed synthetic resins are produced from solutions of curable synthetic resins by mixing a foam of a solution of a foaming agent which has been foamed up with a compressed gas with a solution of a synthetic resin and curing the resultant synthetic resin foam, wherein the foam is produced in a tubular vessel into the inlet end of which a solution of a foaming agent is introduced axially and a compressed gas is introduced tangentially and the introduction of a solution of the synthetic resin into the foam produced is carried out near to the end of a tube which is attached to the tapering outlet end of the tubular vessel. Specified resins are ureaformaldehyde and melamine-formaldehyde condensates, and suitable foaming agents are alcohol sulphonates. A hardener may be added to the foaming agent solution, e.g. an organic or an inorganic acid.
Patent GB-1285829-A (GB)
Title: Moulding compositions of reduced flammability
IPC: C08K5/00
Filed: 1970-08-19
Abstract: 1285829 Moulding composition CELANESE CORP 19 Aug 1970 [16 June 1970] 39831/70 Heading C3R A moulding composition comprises an intimate blend of polypropylene terephthalate or polybutylene terephthalate, a reinforcing filler, a Group Vb metal compound and an aromatic halogen compound stable at temperatures needed for melt processing the composition but decomposing in the presence of the metal compound at the combustion temperature of the composition, the weight ratio of halogen to Group Vb metal being between 0À3 : 1 and 4 : 1. Specified Group Vb metal compounds are compounds of antimony, arsenic or bismuth, e.g. the oxides, antimony trioxide being preferred. The halogen compound may be a chlorinated or brominated phthalic anhydride containing at least two chlorine or bromine atoms in the molecule or a compound containing two chlorinated or brominated benzene rings united directly or by a divalent atom or group, many compounds being specified. The reinforcing filler may be glass fibres (chopped or continuous rovings), asbestos fibres, cellulosic fibres, cotton fabric, paper, synthetic fibres and metallic powders. Colourants, plasticizers, stabilizers or hardeners may be added to the composition.
Patent GB-1107641-A (GB)
Title: Automatic temperature control means
Inventor: TANNER BASIL CHARLES
IPC: G05D23/19
Filed: 1963-10-10
Abstract: 1,107,641. Automatic temperature control. HEAD WRIGHTSON & CO. Ltd. Oct. 8, 1964 [Oct. 10, 1963], No. 39926/63. Heading G3R. A system for controlling the temperature of a fluid comprises thermostatic devices controlling cams and timing devices which control motor driven fans moving the fluid thereby to maintain the temperature of the fluid at an exhaust point constant. A motor 2 drives a cam-shaft 1 carrying a series of cams, rotation of which shaft sequentially closes a series of contacts to energize four motor driven fans firstly each at a slow speed and subsequently each at a fast speed. A thermostat 5 closes its contacts when the exhaust is above the predetermined temperature range and a thermostat 6 closes its contacts when the exhaust is below this range. If the exhaust temperature is too high thermostat 5 is closed to energize the cam-shaft driving motor 2 which drives the shaft 1 to close the first pair of contacts 1 to energize fan motor No. 1 to run at slow speed. Simultaneously with the closure of the first pair of contacts a contact W1 associated therewith moves from the full to the dotted line position whereupon a timing device 3 is energized together with a relay R which closes contact R1 and opens contacts R2, R3. Thus the driving motor 2 is de-energized but the timing device remains energized over contacts R1, 4 until, at the end of the timing period contact 4 opens to de-energize relay R and the timing device 3. If the thermostat 5 still remains closed the motor 2 will drive the shaft 2 to close the second pair of contacts L2 causing fan motor No. 2 to run at slow speed, the timing device 3 being energized by operation of the contact W2 associated with this second set of contacts. Thus whilst thermostat 5 remains closed each fan driving motor will be energized sequentially first at a slow speed and thereafter at a fast speed. If the exhaust temperature is below the set range thermostat 6 will close causing the motor 2 to run in the opposite direction thus removing the fan motors from operation. The slow and fast cam operated contacts are interlocked thus four contacts W only are required. The thermostats may be replaced by a mercury thermometer. Overload protection may be provided together with protection against mal-function of the temperature sensing means.
Patent GB-1403358-A (GB)
Title: Doppler movement detectors
IPC: G01S13/56
Filed: 1971-08-26
Abstract: 1403358 Intruder alarms EMI Ltd 29 Aug 1972 [26 Aug 1971] 40051/71 Heading G4N [Also in Division H4] In a Doppler radar or sonar intruder alarm system, the echo signal is combined separately in mixers 5A and 5B with phase quadrature samples of the transmitted signal to give phase quadrature Doppler frequency signals which are processed to give a Doppler frequency pulse train output from either an advance gate 14 or a recede gate 15 according to whether the reflecting object is approaching or receding and said output pulse trains are coupled to a bi-directional counter 16 which triggers an alarm when the resultant count exceeds a threshold N corresponding to a predetermined radial displacement of said object. As shown the Doppler output from the mixer 5A is amplified, filtered and converted to a corresponding square wave by a trigger unit having a predetermined amplitude threshold, the gates 14 and 15 being enabled by the positive half cycles of said square wave and the corresponding square wave signal derived from mixer 5B being differentiated and applied directly to gate 15 and via an inverter to gate 14.
Patent GB-942621-A (GB)
Title: A process for the production of carboxylic acid chlorides
IPC: C07C51/60
Filed: 1961-11-09
Abstract: Carboxylic acid chlorides derived from aliphatic mono-, or dicarboxylic acids, aromatic carboxylic acids or heterocydic carboxylic acids are prepared by reacting the acid or a salt thereof with thionyl chloride at 20 DEG  to 100 DEG C. in the presence, as catalyst, of 0.005 to 0.5 mol (per mol. of carboxylic acid group) of a carboxylic acid amide, R-CO-NH-R1, in which R and R1 represent hydrogen, an unsubstituted or monosubstituted alkyl or aryl radical or together represent the radical: <FORM:0942621/C2/1> in which the nitrogen atom is bound to the Cx carbon atom. Preferably 1.1 to 1.2 mols of thionyl chloride are used per mol. of carboxylic acid group and the reaction is performed in a diluent. The salts which may be used are the alkalic metal, alkaline earth metal, or ammonium salts. Acids specified include a -phenoxy-butyric acid, a -amino-butyric acid, benzoic acid, phenyl acetic acid, propionic acid, hexahydro-benzoic acid, furan -2- carboxylic acid, 2,4-dichlorophenoxy acetic acid, trichloroacetic acid, adipic acid, stearic acid, oleic acid, pyridine -3- carboxylic acid, 2,3-hydroxy-naphthoic acid.
Patent GB-835689-A (GB)
Title: Process for removing acetylene, methyl acetylene, and allene from hydrocarbon mixtures
IPC: C07C7/163
Filed: 1958-12-15
Abstract: Hydrocarbon mixtures of C2 and/or C3 hydrocarbons are freed of acetylene, methyl-acetylene and allene by selective catalytic hydrogenation in the liquid, preferably trickling, phase.  Suitable catalysts are 0.1-5% of platinum or palladium supported on a macroporous support having an internal surface area less than 50 m2/g and a water absorption capacity of at least 10%, e.g. active alumina gel, silica gel, active carbon, natural aluminium or magnesium silicate, lightly calcined clay free from iron, pumice free from iron or lightly sintered alumina or magnesia.  Temperatures of - 40 DEG to 50 DEG  C. can be used with throughputs of 3-40 kg. per litre of reaction chamber volume per hour.  The hydrogen pressure should be sufficient to maintain the hydrocarbons in the liquid phase.  High purity hydrogen is preferred in which case the withdrawal of gases is unnecessary. Catalyst poisons, particularly sulphur compounds and carbon monoxide, must be removed from the hydrogen and hydrocarbons. The reaction chamber is preferably cooled by external or internal indirect cooling with water, liquid ammonia or brine and if the starting material has high concentrations of the materials to be hydrogenated, it is preferably diluted, e.g. with part of the product, to avoid a local temperature rise at the beginning of the reactor.
Patent GB-1384110-A (GB)
Title: Preparation of 2,6-naphthalene dicarboxylic acid
IPC: C07C67/00
Filed: 1972-08-31
Abstract: 1384110 2,6-Napthalene dicarboxylic acid TEIJIN Ltd 31 Aug 1972 [3 Sept 1971] 40445/72 Heading C2C 2,6-Naphthalene dicarboxylic acid is prepared by a process which comprises reacting 2,6- dimethylnaphthalene with molecular oxygen at a temperature of 160‹ to 250‹ C., the reaction being carried out in a liquid reaction medium comprising acetic acid, the molar ratio of 2,6- dimethylnaphthalene to acetic acid being no greater than 1 : 100, and the reaction medium having dissolved therein, as catalyst for the reaction, cobalt and manganese in the form of components of compounds thereof and bromine in the form of the free element or a component of a compound thereof.
Patent GB-888321-A (GB)
Title: Improvements in or relating to thermionic cathodes
Inventor: GOSS ANTHONY GEORGE
IPC: H01J1/28
Filed: 1959-11-30
Abstract: 888,321. Cathodes. M-O VALVE CO. Ltd. Nov. 21, 1960 [Nov. 30, 1959], No. 40609/59. Class 39(1) A thermionic cathode includes a wire mesh 11 mounted on and in good thermal contact with a sheet metal base 1, the mesh being embedded in a porous layer 12 of sintered metallic powder the pores of which are loaded with a thermionically emissive material. As shown, the tubular cathode is mounted in a magnetron, intended for pulsed operation, by means of ceramic plugs 2 in molybdenum cups 4 welded to molybdenum discs 5, which have tags 6 welded to tungsten supports 7. The supports 7 also supply current to the heater 8, the cathode tube 1 being connected to one of these supports by a metal strip 10. In manufacture of the cathode, the nickel mesh 11 is first tack-welded and then sintered to the nickel tube 1. The porous layer 12 is formed by applying a suspension of fine nickel powder in amyl acetate with a nitrocellulose binder to the mesh 11 and sintering, further layers being applied, if necessary. Finally, the layer 12 is painted with a suspension of Carium and strontium carbonates in a suitable binder, activation of the cathode being effected during outgassing of the magnetron. Suitable cathode dimensions and sintering temperatures are given.
Patent GB-1507173-A (GB)
Title: Coupling components for dyestuffs
IPC: D06P3/54
Filed: 1975-03-06
Abstract: 1507173 Coupling components CIBA-GEIGY AG 6 March 1975 [7 March 1974] 41478/77 Divided out of 1507172 Heading C2C Coupling components have the formula where A is an arylene radical, R 1  is an alkylene group which may be interrupted by a hetero atom, X is a direct bond, -O-, -SO 2 -, -SO 2 NH-, -SO 2 N(alkyl), -CONH- or -CO-N-(alkyl)-, R is H or an alkyl group of up to 5 C which may be substituted or interrupted by oxygen, and W is the radical of a compound containing either two ammonium groups or one ammonium and one amino group, which radical is linked through an ammonium group to the methylene carbonyloxy radical and has its nitrogen atoms separated from each other by at least one carbon atom. Examples of such types of compound are given in Formulae (I) and (II) below
Patent GB-1082521-A (GB)
Title: Improvements in or relating to centrifugal pumps
Inventor: PFEFFER SIEGFRIED
IPC: F04D9/02
Filed: 1964-10-12
Abstract: 1,082,521. Priming centrifugal pumps. WISSENSCHAFTLICH-TECHNISCHE ZENTRUM (WTZ) PUMPEN UND VERDICHTER VEB. Oct. 12, 1964, No. 41568/64. Heading F1C. In a self-priming centrifugal pump having a rotor surrounded by a spiral-shaped guide arrangement (comprising either a volute or a ring of diffuser blades), priming is effected by a circulation of auxiliary liquid from a return duct to the rotor so as to arrive at a part of the inlet crosssection of the rotor having an area approximately 1/50 to 2/3 of the entire inlet cross-section. As shown in Fig. 4, the auxiliary liquid may be fed to the rotor through a pipe 31' which may be axially withdrawable from the rotor, the inlet port 32 of the pipe being closed when the pipe is withdrawn. The auxiliary liquid may instead be fed to the rotor as a free jet (29), Fig. 3 (not shown) or via a guide rib (28), Fig. 2 (not shown), projecting into the rotor eye.
Patent GB-1469466-A (GB)
Title: Device for clamping a member to a shaft
IPC: F16D1/091
Filed: 1974-09-25
Abstract: 1469466 Clamping hubs on shafts UNITED AIRCRAFT CORP 25 Sept 1974 [28 Sept 1973] 41732/74 Heading F2U A member 14 is clamped on a shaft 10 by means of a segmented ring 20 having an inner conical surface 22 engaging a conical surface 18 of a groove 16 of the shaft 10, a retaining ring 28 having a flange 30 overlying the segmented ring 20 being fixed to the ring and clamping bolts 34 extending through the ring 20. The ring 20 is shown in two segments 20a, 20b having their ends overlapping and pinned together by pins 21, 23 (Fig. 2) (or alternatively by bolts, Figs. 6 and 8, not shown). The member 14 (of a bearing assembly) is clamped (Fig. 3) between a flange 12 of shaft 10 and a pressure ring 36 acted upon by the bolts 34. The retaining ring 28 is shown fixed to segmented ring 20 by screws 32, but may be alternatively retained by the bolts securing the halves of segmented ring 20 if such are used (Fig. 8, not shown). Ring 28 may be replaced by two rings, one on each axial side of ring 20 and each overlying part of the periphery thereof.
Patent GB-1527610-A (GB)
Title: Flat field scanning system
IPC: G02B26/10
Filed: 1975-10-14
Abstract: 1527610 Optical scanning XEROX CORP 14 Oct 1975 [30 Dec 1974] 42026/75 Headings G2A and G2J In a scanning arrangement a light beam is first scanned in a first direction (X), and is then incident on a scanning mirror 28 traversable linearly to produce scanning in a second direction (Y) orthogonal to the first, the light then passing via a lens 30 to a surface 32, the arrangement being such that the scanning mirror 28 is tilted (angle #) with respect to the surface 32 and such that the degree of tilt # thereof changes as the mirror 28 is traversed, so that at one extreme of the (Y) scan the light is directed axially through the lens 30, and at the other extreme of the (Y) scan the light is directed obliquely through the centre of the lens 30, the dimensions and angles being such that the rate of change of the distance from the object plane 26 of the lens to the lens equals the rate of change of the distance from the lens to the exposed part of the surface 32. As referred to an unfolded beam diagram (Fig. 3), it is prefered that The angle # between the scanning mirror surface 28 and a plane normal to the lens axis is varied by mounting the mirror 28 on a beam 34 which is in turn pivoted to a linearly reciprocable mount 43. A roller 36 on the beam 34 follows a planar cam surface 44, whereby the tilt is changed as the scan proceeds. In one form the mirror 28 is traversed in incremental steps, and mirror 26 is rotated about an axis perpendicular to the paper to scan in the (Y) direction (over an angular extent commensurate with one of said steps) between each said step. The system is applicable to many systems. Thus it may be used to scan a document on to a photo copier drum, or to direct a modulated beam on to a recording surface, or on to a light sensitive device (e.g. a Ruticon). As shown in Fig. 2, the light from surface 32 may be imaged on to a detector 48 for subsequent encoding.