baber/WOPTO huggingface dataset:
Patent GB-952476-A (GB)
Title: Process of making metal salts of organic dithiophosphates suitable for use as lubricating oil additives
IPC: C07F9/02
Filed: 1960-10-31
Abstract: A bivalent metal salt of a diorgano dithiophosphoric acid is obtained by reacting one or more dialkyl dithiophosphoric acids with from 1 to 14% (based on the total weight of the dialkyl dithiophosphoric acid or acids) of an alkyl phenol to effect partial transesterification and reacting the resulting product with one or more of the oxides, hydroxides and carbonates of one or more bivalent metals.  The alkyl groups in the dialkyl dithiophosphoric acid may be primary, secondary or tertiary alkyl groups, preferably containing 2 to 12 carbon atoms, and may be the same or different. Specified bivalent metals are zinc, barium, calcium and magnesium and preferred salts for use as lubricating oil additives (see Division C5) are the zinc salts although mixtures of salts containing zinc and barium, calcium or magnesium are also suitable for the purpose.  The alkyl phenols used may contain one or more alkyl groups and are preferably branched chain mono-alkyl phenols in which the alkyl group is a tertiary alkyl group, e.g. tert. butyl or tert. octyl.  In the example given the transesterification reaction is carried out by maintaining the reactant mixture at 80 DEG C. for 1 hour in a stream of nitrogen.ALSO:A lubricating oil contains as additive a metal salt of a diorgano dithiophosphoric acid obtained by reacting one or more dialkyl dithiophosphoric acids with from 1 to 14% (based on the total weight of the dialkyl dithiophosphoric acid or acids) of an alkyl phenol to effect partial transesterification and reacting the resulting product with one or more of the oxides, hydroxides or carbonates of one or more bivalent metals especially zinc, barium, calcium or magnesium.  The lubricating oil is suitably a mineral lubricating oil and the metal salt is preferably a zinc salt, although mixtures of salts containing zinc and either barium, calcium or magnesium are also suitable.  The salts can be mixed with common dispersing-detergent agents for lubricating oils, e.g. polyvalent metal salts of sulphurized hydrocarbons or of sulphurized alkylphenols.  The alkyl groups in the dialkyl dithiophosphoric acid may be primary, secondary or tertiary alkyl groups, preferably containing 2 to 12 carbon atoms, and may be the same or different. The alkyl phenol reactants may contain one or more alkyl groups and are preferably mono-alkyl phenols in which the alkyl group is a tertiary alkyl group, e.g. tert.-butyl or tert.-octyl.
Patent GB-1346149-A (GB)
Title: Method and apparatus for correlating a pipeline inspection record to known external locations
IPC: G01N29/30
Filed: 1972-08-10
Abstract: 1346149 Inspecting pipe-lines AMF Inc 10 Aug 1972 [17 Sept 1971] 37395/72 Heading G4H In inspecting a pipe-line, a pig 14 makes a record of inspection signals and timing signals which is later correlated with the times it passed marker stations. In Fig. 1, when a marker station detects the pig it transmits a code to a base station which records the code and the time it was received. The station record and pig record are played back together to form a visible record, Fig. 3, carrying the inspection signals, timing signals and marker station codes thus enabling the position of any flaw to be ascertained.
Patent GB-898473-A (GB)
Title: Ship for the transport of pulverulent material in bulk
Inventor: JORGENSEN ARN BYE
IPC: B63B27/24
Filed: 1959-11-05
Abstract: 898,473. Carrying bulk cargo. SMIDTH & CO., A.S., F. L. Nov. 7, 1960 [Nov. 5, 1959], No. 37592/59. Class 113. [Also in Group XXX] A ship for the transport of cement or other pulverulent material has pairs of closed tanks 3, 4 and 5, each of which is mounted so as to be tiltable about an axis 6 by hydraulic jacks 11. The cement is loaded through openings 18 and unloaded through a discharge opening 14. The tanks are tiltable so as to give the ship a low C.G. during transit but also an inclined bottom to assist the unloading. Each tank is provided with an air-permeable false bottom 12 through which compressed air may be passed to fluidise the lower part of the load so that it flows readily to the outlet 14 under gravity. A further compressed-air connection (not shown) may be provided in the top of each tank to assist the discharge through the pipe 16. The cement may be removed from the discharge 14 by purely mechanical means.
Patent GB-964434-A (GB)
Title: Improvements in or relating to hair dryers
IPC: A45D20/10
Filed: 1961-05-02
Abstract: 964,434. Hair driers. RONSON CORPORATION. May 2, 1961 [May 3, 1960], No. 37606/63. Divided out of 964,433. Heading A5R. [Also in Division F2] A hose is attached to the outlet of a hair drier by means of a detachable coupling provided with suitably placed apertures to allow the escape of air to atmosphere in the event of the hose becoming blocked. The hose 84, Fig. 1, is fitted to a first coupling member 80 which has wedge-shaped projections 81, around its periphery, co-operating with inwardly directed projections 78 in the outlet of the air drier 12 to provide a quickly detachable bayonet-type coupling. The member 80 has a number of lateral apertures 82 which allow air to escape through the bell-mouthed portion 32 if the hose becomes blocked, and thereby avoids overheating of the motor.
Patent GB-891304-A (GB)
Title: Improvements in or relating to sea markers
Inventor: REFFELL BRIAN RICHARD ARNOLD
IPC: B63B51/04
Filed: 1959-11-05
Abstract: 891,304. Buoys. KIDDE CO. Ltd., WALTER. Oct. 31, 1960 [Nov. 5, 1959], No. 37633/59. Class 68(1). A sea marker comprises a ballasted inflatable float portion 11, 14, 15, 16 supporting an inflatable tubular framework 4 providing when inflated supporting points arranged in three dimensions for position-indicating means, e.g. a radar reflector 8. The embodiment shown may be modified by omitting the inflatable tubes 14 and fabric vanes 15 and securing the ballast weight directly to the foot of the tube 11. The inflatable rings 4 may also be replaced by five inflatable tubes extending from the top of the tube 11 in three co-ordinate directions. Specifications 861,726 and 891,303 are referred to.
Patent GB-1005822-A (GB)
Title: Method of securing a vehicle seat squab covering to the filling thereof
IPC: A47C31/02
Filed: 1962-10-05
Abstract: 1,005,822. Cushions. G. FRITZMEIER. Oct. 5, 1962 [Oct. 28, 1961], No. 37713/62. Heading A4M. A vehicle seat squab comprises a filling 1 of foam rubber or the like enclosed by a covering composed of parts 2, 3 welded together at their edges 4. The covering has air holes 5 and buttons 6 welded to part 3 serve for securing the cushion to the seat. In a modification, Fig. 3, just the sides and the top part of the filling are provided with a covering 8 directly welded to the filling along one edge.
Patent GB-1351552-A (GB)
Title: Preparation of citraconic and itaconic acids
IPC: C07C51/377
Filed: 1972-08-14
Abstract: 1351552 Citraconic and itaconic acids PFIZER Inc 14 Aug 1972 [27 Sept 1971] 37898/72 Heading C2C Citraconic and itaconic acids are prepared by the pyrolysis of a spray mist mixture of citric, isocitric, aconitic acids and anhydrides and isocitric lactone, at from 215‹ C. for 20 seconds to 400‹ C. for 0À05 seconds, over an inert support material carrying an active catalyst consisting of alkali or alkaline earth metal salts of phosphoric, pyrophosphoric, boric and sulphuric acids, and absorbing the product citraconic acid in water and isomerizing by heating to itaconic acid. The spray mist mixture is formed by passing a preheated inert gas such as nitrogen, helium, carbon dioxide and super-heated steam or recycled effluent gases. The concentration of active catalyst is from 0À01 to 20 wt. per cent. Examples describe the use of potassium dihydrogen phosphate on Alundum (RTM), silicon carbide, zirconium silicate and oxides and an alumina-silica mixture to form oitraconic acid, and the isomerization to itaconic acid.
Patent GB-920129-A (GB)
Title: Process for the production of alkali metal and ammonium salts of caros acid
IPC: C01B15/08
Filed: 1959-11-09
Abstract: Solutions of alkali metal or ammonium salts of Caro's acid are prepared by reacting hydrogen peroxide and a persulphate in the presence of at least 2 mols. of sulphuric acid and not more than 1 mol. of water per mol. of active oxygen present in the reaction mixture.  The sulphuric acid is preferably concentrated or fuming, and the reaction temperature is preferably kept at 40 DEG -70 DEG C. The solutions may thereafter be cooled, adjusted with alkali to a pH of 1-2, and evaporated to dryness, to give the solid alkali metal or ammonium salts of Caro's acid.
Patent GB-1124944-A (GB)
Title: Improvements in or relating to valve actuating devices
Inventor: PIKE ALEXANDER CHARLES JAMES
IPC: F16K31/04
Filed: 1964-09-17
Abstract: 1,124,944. Valves. LIMITORQUE VALVE CONTROLS Ltd. 16 Sept., 1965 [17 Sept., 1964], No. 38071/64. Heading F2V. [Also in Division H1] A device to limit the torque applied to a valve 70 by an electric motor 72 via a worm 73 and worm-wheel 74, comprises a shaft 17 carrying members to actuate switches 12 or 13 (see Division H1). Should valve 70 jam, for example, the worm 73 and its shaft 78 is moved axially against spring washers 77 and a circular rack 75 rotates a pinion 76 on shaft 17 and one of the switches 12 or 13 is opened to stop the motor. The switch-actuating members are each angularly adjustable on the shaft 17 to permit preselection of the limiting torque in either direction, and a single knob (37, Fig. 1, not shown) is provided to release and secure the members relative to the shaft.
Patent GB-1187649-A (GB)
Title: Improvements in or relating to Electromagnetic Relays
IPC: H01H51/12
Filed: 1967-08-18
Abstract: 1,187,649. Automatic circuit-breakers. WESTINGHOUSE AIR BRAKE CO. 18 Aug., 1967 [7 Sept., 1966], No. 38122/67. Heading H1N. A latched relay has contact spring sets controlled by an armature 6 which is held in its operated position by a spring biased pivoted lever 34 which releases the armature 6 when it is moved by the armature 24 of a release electromagnet; the armature 24 normally being out of engagement with the lever 34. Both electromagnets have E-shaped cores 3, 23 and U- shaped armatures 6, 24 and the end 7 of the armature 6 as well as the hooked end of the limb 35 of the lever 34 whichco-operates with the armature end 7 are chromium plated and polished. The release armature 24 is biased against a stop 37 by gravity and by a spring 38 which is mounted on the lever 34 and limits the response to vibration. A cover 50 provides a dust and moisture-proof housing with a base-plate 40 on which the assembly is mounted by insulating supports 41, 43.
Patent GB-1452323-A (GB)
Title: Extrusion of glass fibre-filled polycarbonate
IPC: B29C48/90
Filed: 1973-08-11
Abstract: 1452323 Extruding glass filled polycarbonate M B TUBEX Ltd 29 July 1974 [11 Aug 1973] 38131/73 Heading B5A A rectilinear sided strip, of glass fibre filled polycarbonate material, is made by extruding from a die 7, a concave faced section of the material which is of a thickness 15% greater than that of the strip, and which is sized to correct thickness and shape in passage through the nips of heated sizing rollers 8, from which it is cooled to below 150 C. in being drawn by heated take up rollers 11 over a cooling table 9 to a spool 13. Means 10 monitors the sheet thickness on the table 9, and a footage counter 12 is provided. The material is delivered to the extruder hopper 3 as glass fibre-filled granules, being either pre-dried in an oven, or in the hopper, at 115 C. for five hours by a hot air current. The extruder barrel is heated in either 4 or 5 zones, with a vacuum assisted vent being provided respectively between the 2nd and 3rd, or the 3rd and 4th zones. An adaptor 6 and the die 7 are also heated. The sizing rollers 8 are chain driven from variable speed rollers, and the upper and lower rollers thereof are pressure adjustable for sizing of the sheet. Heating temperatures are specified for the extruder barrel, adaptor and die, and the sizing and take up rollers. The strip of sheet may be pre-punched for insulation use in switches and relays, e.g. for assembly prior to or during hand or automatic soldering, the material remaining after punching being reprocessed.
Patent GB-1518309-A (GB)
Title: Vehicle door latches
IPC: E05B65/32
Filed: 1976-12-16
Abstract: 1518309 Latches WILMOT BREEDEN Ltd 16 Dec 1976 [17 Sept 1975] 38141/75 Heading E2A  Handle 41 is non-rotatively attached to operating lever 25 by the engagement of the non-circular stem 42 in recess 45, of similar cross-section, in the lever. The latch is otherwise constructed as disclosed in Specification 1518308.
Patent GB-888771-A (GB)
Title: Improvements relating to a pressure vessel
Inventor: MANTLE GERALD KEITH
IPC: B23K9/00
Filed: 1957-12-10
Abstract: 888,771. Making pressure vessels; welding by fusion. THOMPSON (WOLVERHAMPTON) Ltd., JOHN. Dec. 10, 1958 [Dec. 10, 1957], No. 38428/57. Classes 83 (2) and 83 (4). A pressure vessel consists of a cylindrical body 1, at least one domed end 3 of lesser wall thickness and a concentric annulus 2 the ends of which are welded to the adjacent ends of the body 1 and the domed end 3. The annulus 2 is tapered. The body 1 and the domed end 3 may be either a single plate or a relatively thick supporting plate 4, 15 having superimposed laminations 5, 16 welded to the annulus 2 as described in Specification 888,770.
Patent GB-351424-A (GB)
Title: Improvements in two-stroke engines, in particular those for vehicle, navigating machines and aircraft
IPC: F02B75/28
Filed: 1929-12-16
Abstract: 351,424. Two-stroke engines. VAUDET, P. L., St. Seruin-du-Plain, Saone et Loire, and GUITAUT, F. A.; 200, Rue Croix-Nivert, Paris, both in France. Dec. 16, 1929, No. 38462. Convention date, April 12. Void [Published under Sect. 91 of the Acts]. [Classes 7 (ii) and 7 (vi).] Driving gear.-An engine is made up of one or more units each comprising four pistons c moving together in two pairs of coaxial cylinders each pair having a common combustion chamber b. The four pistons drive through a single gudgeon and a pair of outside connecting-rods on to a crank shaft. Each unit may drive direct on to the crank shaft or as shown in Fig. 3 two units may be connected together by coupling-rods m, only one driving the shaft d. A number of units may be arranged around a central power shaft t, Fig. 6, each unit having its own crank shaft on which is a pinion r ; these gear with an internally-toothed wheel s<1> and a spur-wheel s<2> either of which wheels may be clutched to the shaft. Frames ; casings.-In the radial cylinder arrangement shown in Figs. 7 and 8 the cylinders a are carried by flanges p<1>, p<2> integral with the inclined frames n carried by the crank case. The frames are slotted to allow the gudgeons to work, the spaces between the flanges where the driving gear moves being enclosed by detachable plates o<1>. Valves.-The conical admission and exhaust valves v are driven off the through spindle which also actuates the liquid fuel injection valve. The valves are held on their seats by a common spring.
Patent GB-867350-A (GB)
Title: Capacity change detector
IPC: G01N27/22
Filed: 1957-12-11
Abstract: 867,350. Electric tests; capacitors. TURNER, D. W. Dec. 2, 1958 [Dec. 11, 1957], No. 38512/57. Class 37. Changes in dielectric constant caused by movement of a substance between two electrodes of a sensing capacitor is followed by causing the resulting change in capacitance to vary the impedance of a tuned circuit, of which the capacitance forms part, connected to, one grid of a multi-grid valve. The valve is maintained in oscillation by a reference tuned circuit connected to a second grid, and the resulting change in anode potential of the valve is measured and indicated. Detector cell.-The detector cell comprises a cylindrical brass body 1, Fig. 1, 2, containing two cylindrical passages 2, 3 in which are mounted brass rods 4, 5 supported by silicone rubber 0-rings 6, 7, thus forming two capacitors R and S. The capacitor R is normally filled with air and acts as a reference capacitor, the other, S, acts as a sensing capacitor and can have a stream of vapour from a gas-liquid chromatography column passed through it via the inlet 8 and the outlet 9. Measuring Circuit.-The measuring circuit shown in Fig. 3 comprises a multi-grid valve 10 having a reference tuned circuit comprising inductance 12 and capacitor R and a measuring tuned circuit comprising inductor 11 and capacitor S. The output from the anode of the valve 10 is fed on to one grid of a double triode 13, 14, the other grid being maintained at a fixed D.C. potential which can be set by the potentiometer 15. The cathode circuits of the two triodes are connected to a meter 16 which indicates changes in capacitance of S due to flow of gas through it.
Patent GB-385846-A (GB)
Abstract: 385,846. Wall centring. McKEOWN, H. O., 479, Moore Road, Durban, South Africa. May 24, 1932, No. 14756. Convention date, Sept. 23, 1931. [Class 20 (ii).] An adjustable cramp for securing centring or shuttering in position for concrete constructional work, comprises two members 3, 4, Fig. 1, which are shaped to receive the stiffening members 14 of the shutters 31 and which are adjustably connected to a cranked rod 1. The member 4 is slidably fitted upon the cranked end of the rod while the member 3 is screwthreaded to the opposite end. The outward movement of the member 4 is limited by two hand locking-nuts 9. The centre portion of the rod 1 may be circular in cross section with a. slight larger diameter than the screwed parts, but is preferably of oval or like section so that it can be readilv loosened from the concrete. The members 14 are secured in the required position by hand screws 10. In a modification, the lock nuts 9 are replaced by a collar which is permanently fixed to the rod 1, the screw 11 being then omitted. In a further modification, the cramp member 24, Fig. 4, is formed with an extension 25 which forms a support for the stiffening member 14 and prevents the latter from contacting with the screwed portion 30 of the rod 1. In lieu of the extension 25, the support for the member 14 may be provided by forming the side 32 of the member 24 with an inwardly projecting lip or tongue.
Patent GB-933470-A (GB)
Title: Improvements relating to glass sandwiches primarily for windows of optical instruments
Inventor: DAVY JOHN RUPERT
IPC: H05B3/28
Filed: 1959-11-14
Abstract: 933,470. Laminates. BARR & STROUD Ltd. Oct. 24, 1960 [Nov. 14, 1959], No. 38676/59. Class 140. [Also in Group X] A glass sandwich between the layers of which is positioned a series of fine electrically conductive elements connected to a pair of bus-bars, e.g. for use with optical instruments involving magnification, has each bus-bar formed from a colloidal dispersion of electrically conductive material, e.g. silver in alcohol, in which the adjacent element ends are embedded, the material after solidification completely surrounding the element ends. In the embodiment shown, two channels 6 are machined, etched, or otherwise formed in the top surface 7 of the layer 3 of the sandwich, filled with a colloidal dispersion of silver in alcohol which is solidified by baking and then worked flat with the top surface 7. The elements 4 are then arranged over the glass surface with their ends resting on the solidified bus-bar material in the channels 6 and the upper bus-bar material is applied over the top of the element ends by spraying, brushing or dipping. This material unites with that already in the channels 6 to form two bus-bars 5 in which the element ends are embedded. The layers 3, 10 of the sandwich are secured together by an epoxy synthetic resin cement. Specification 933,469 is referred to.
Patent GB-1059638-A (GB)
Title: Rotor blade folding mechanism
IPC: B64C27/50
Filed: 1963-10-02
Abstract: 1,059,638. Folding helicopter rotor blades. BOEING CO. Oct. 2, 1963 [Oct. 15, 1962], No. 38779/63. Heading B7W. A rotor blade 86 is mounted by a folding hinge 23 on a pitch bearing housing 20, itself mounted on a drag hinge 13. A motor 26 mounted about the hinge 23 is connected to a flange 44 fixed to the inward extension 22 of the rotor blade, and to an arm 42 and produces relative rotation between the arm 42 and flange 44. In the unfolded position the blade is locked by a tooth 67 and a projection 65 on the blade (Fig. 5, not shown) respectively engaging a notch 61 and stop 64 on a clamp arm 63 held in position by a cam 45 pivoted at 48. Since the flange 44 is fixed, operation of the motor 26 moves the arm 42 and therefore an arm 40 and an arm 36 both fixed to the same shaft 32. This drives a pin 25 through a bush 28, locking the blade against pitch changes, and when the pin engages a stop 30, causes the blade to pivot about the drag hinge 13 until a projection 37 on the arm 36 abuts the housing 20. This prevents further movement of the arm 26. Meanwhile the cam 45 has been rotated by a link 46 so that it no longer locks the clamp arm 63. This enables the flange 44 to move, folding the blade about the hinge 23 until stops 82, 83 abut. When the tooth 67 and notch 68 disengage (Fig. 10, not shown), a projection 74 on the tooth strikes the end 73 of a lever 70 to rotate the clamp arm 63 further to prevent the tooth jamming when the blade is unfolded. The folding hinges 23 of different blades of a rotor (Fig. 2, not shown) may be inclined to each other so that the blades are vertically spaced when folded. A spring 29 (Fig. 4) is provided to absorb inertia loads when the blade is unfolded, and a spring 43 in the link 41 allows relative movement of the arms 40, 42 due to flight forces.
Patent GB-945829-A (GB)
Title: Improvements in and relating to castors
Inventor: DUNCAN GEORGE
IPC: F16B12/48
Filed: 1961-10-30
Abstract: 945,829. Castors. ALANDEE PTY Ltd. Oct. 16, 1962 [Oct. 30, 1961], No. 38783/61. Heading A4U. A castor attached to a splayed furniture leg has a swivel pin fitting 7 which includes a swivel pin 8 engaging in a bush 6 extending from the castor body and provided with a recess 9 for a circlip or other fixing means, and a collar member 10 with a fixing member 11 extending from the collar at an angle corresponding to the angle of the splayed leg to the vertical. In a modification the member 11 is of spike form.