baber/WOPTO huggingface dataset:
Patent GB-600825-A (GB)
Title: Improvements in the preparation of alkaline earth metal salts of alkyl phenol sulfides
IPC: C07F3/00
Filed: 1945-01-16
Abstract: Lubricating oil additives comprising the alkaline earth metal salts of alkylated phenol sulphides are improved by heating in solution in a hydrocarbon oil, the solution containing substantially more than 2 per cent by weight of the salt for from 1/2 -50 hours at 125 DEG C.-220 DEG  C., preferably at 140 DEG -210 DEG  C.  In preferred methods an oil concentrate containing from 10 to 50 per cent by weight of the metal salt is heated at a temperature between 180 DEG C. and 210 DEG  C. for 3-20 hours or at 140 DEG  to 160 DEG  C. for 12-20 hours.  Additives so treated are less sensitive to water and more compatible with other detergent additives. Specified additives which may be incorporated into lubricating oils with the salts of alkyl phenol sulphides are higher aliphatic alcohols, e.g. stearyl alcohol, or aliphatic nitriles.  In examples oil concentrates of barium tertiary octyl phenol sulphide containing stearyl alcohol are heated to temperatures between 125 and 210 DEG  C. and blended with further quantities of mineral oil giving products which show improved properties on test.ALSO:Lubricating oil additives comprising the alkaline earth metal salts of alkylated phenol sulphides are improved by heating in solution in a hydrocarbon oil, the solution containing substantially more than 2 per cent by weight of the salt, for from 1/2 -50 hours at 125 DEG  to 220 DEG  C., preferably at 140 DEG  to 210 DEG  C.  The process may suitably be carried out by heating an oil concentrate of the metal salt, containing from 10 to 50 per cent by weight of metal salt at a temperature between 180 DEG  and 210 DEG C. for 3-20 hours, preferably at 140 DEG  to 160 DEG  C. for 12-20 hours. Additives so treated are less sensitive to water and more compatible with other detergent additives.  In examples, oil concentrates of barium tertiary octyl phenol sulphide are heated to temperatures between 125 DEG  and 210 DEG  C. and blended with a further quantity of mineral oil, giving products which show improved properties on test.  Barium tertiary-octyl phenol sulphide is prepared by the reaction of tertiary-octyl phenol and sulphur dichloride to give tertiary-octyl phenol sulphide which is neutralized with barium hydroxide octahydrate to give the salt.
Patent GB-970706-A (GB)
Title: Improvements relating to magnetic tape transducing apparatus
Inventor: HALL PHILIP MERRICK
IPC: G11B15/43
Filed: 1960-01-14
Abstract: 970,706. Control of A.C. motors. ELECTRIC & MUSICAL INDUSTRIES Ltd. Jan. 4, 1961 [Jan. 14, 1960], No. 1381/60. Heading H2J. The torque produced by two windings 1, 2 of an induction motor M driving a magnetic tape reel is controlled in magnitude and direction by pressure of a member 5 in a carbon pile potentiometer connected across both windings and a phase-splitting capacitor 3, no torque being produced when the pressure is uniform on both halves. The pressure is exerted by a tape tension sensing arm so that the reel is either driven or is dynamically braked to maintain the tension constant.
Patent GB-1376073-A (GB)
Title: Document reading heads
IPC: G06K7/10
Filed: 1973-01-10
Abstract: 1376073 Document reading head RANK ORGANISATION Ltd 10 Jan 1973 [12 Jan 1972] 1449/72 Heading G1A [Also in Division G2] In a document reading head of the single reading point type, light from a (self focusing) lamp I is directed via a set of optical fibres 2 to a lens system 3, and light reflected back from the document is received by the lens system 3 and is directed via a further set of optical fibres 4 to a photo-dectector 5. The sets of optical fibres 244 which may be encapsulated in a block 7 may also be interleaved or connected to an fibre optics integrating rod in order to direct light to and from the lens system.
Patent GB-100972-A (GB)
Title: Improvements in Sprayers and Injectors for Liquid Fuels.
IPC: F23D11/14
Filed: 1916-01-31
Abstract: 100,972. Marks, E. C. R., (Turconi, C.). Jan. 31, 1916. Air and steam pressure sprayers.-In a spray burner, the passages e f, Fig. 2, through which steam, or compressed air, and liquid fuel are respectively supplied are separated by an iron or steel plate c formed with teeth i, j at its forward end and provided with an aperture d, in order that a portion of the liquid fuel may pass into the steam or air supply passage, and vice versa. Two or more downwardly-bent teeth h at the rear of the aperture d facilitate the flow of fuel into the passage e. The parts a, b may be cast in gunmetal.
Patent GB-1471390-A (GB)
Title: Weigh batching plant
IPC: B28C9/04
Filed: 1976-02-12
Abstract: 1471390 Concrete mixing plant STEELFIELDS Ltd 12 Feb 1976 [14 Jan 1975] 1581/ 75 Heading B1C [Also in Division Gl] A transportable concrete mixing plant comprises a cement container 1, a mixer 8 and a cement weigh hopper 9 mounted on extensions 6 of the container 1, a screw conveyor 28 for carrying cement to the weigh hopper 9, an aggregate weigh hopper 7 mounted on extensions 5 of the container 1, a conveyor belt 15 extending through a passage 20 through the container 1 for carrying aggregate from hopper 7 to mixer 8, and a water tank and metering pump (not shown) for supplying water to the mixer. Container 1 has inwardly curved side walls 2, 3 and an air slide 27 is provided in its bottom. The container is vented via a filter 34, and a manhole 33 is provided. The outlets 23 and 14 of the cement and aggregate weigh hoppers are pneumatically operated. Container 1 is normally supported by supports 11 but may be transported by means of wheels 12 mounted on a removable sub-frame and fifth wheel 13.
Patent GB-1217341-A (GB)
Title: Improvements relating to water vapour permeable flexible sheet materials
Inventor: CUNNINGHAM VICTOR RALPH
IPC: C08J9/26
Filed: 1967-01-11
Abstract: 1,217,341. Water vapour permeable sheet materials. PORVAIR Ltd. 10 Jan, 1968 [11 Jan., 1967], No. 1608/67. Headings C3C and C3R. Water vapour permeable flexible sheet material is produced by forming a spreadable mixture comprising a solution of a film-forming polymeric thermoplastic working material in a solvent having distributed through it a microscopic removable solid filler forming a continuous layer of the mixture on a temporary backer to which the layer adheres, treating the layer on the backer with a coagulating liquid which is a non-solvent for the working material but is a solvent for the removable filler and is at least partly miscible with the solvent for the working material, so as to coagulate the working material, into a sheet, and removing substantially all the solvent and the removable filler by washing the material with a coagulating liquid, drying the resultant sheet and stripping it from the backer, the ratio in p.b.w. of filler to working material and the ratio in p.b.w. of working material to solvent in the mixture falling within the area defined by the closed figure A-K-L-M-A of Fig. 1 of the accompanying drawings, but above the line A-K. The working material is suitably a polyurethane based on a polyether, polyester or polycaprolactone. It may be dissolved in a solvent such as dimethyl sulphoxide, N-methyl pyrrolidone, dimethyl acetamide and especially dimethyl formamide. The removable filler is suitably sodium chloride of particle size 134À5 microns. A suitable temporary backer is a sintered high density polyethylene. The coagulation is preferably carried out by immersing the layer on the backer in water at 20 C. and the filler is removed by mangling the material in heated coagulating liquid e.g. at 60 C.
Patent GB-861459-A (GB)
Title: Process of preparing tetraaryl tin compounds
IPC: C07F7/22
Filed: 1958-01-17
Abstract: Tin tetra-aryls are produced by reacting a mono-, di- or tri-aryl tin halide with an alkali metal aryl.  The process may be carried out in two stages by reacting a tin tetra-aryl (obtained by reacting tin tetrahalide with an alkali metal aryl) with tin tetrahalide to give an aryl tin halide, which in its turn is reacted with an alkali metal aryl to form tin tetraaryl. Preferably the aryl radical is phenyl or tolyl and the halide radical is chloride.  The reaction may be carried out in the presence of an inert solvent, e.g. benzene.
Patent GB-1333872-A (GB)
Title: Machine tool with a device for locking the tool on the spindle thereof
IPC: B23B31/26
Filed: 1971-01-14
Abstract: 1333872 Chucks ING C OLIVETTI & C SpA 14 Jan 1971 [16 Jan 1970] 1955/71 Headng B3B  A machine tool comprises a device for locking a tool 4 on a spindle 1 and comprises first balls 16 which are radially movable for insertion into a groove 26 of the tool 4 and are housed in radial holes of a bush 12 which is slidable relative to both the spindle and an operating rod 8 which is displaceable relative to the spindle for causing the balls 16 to move into the groove 26, further balls 15 housed in corresponding holes in the bush 12, a cam 24 stationary relative to the spindle and co-operating with the further balls 15, and a second cam 10 integral with the rod 8 and co-operating with the rod 8 and co-operating with the further balls 15 only during a stage of displacement of the rod 8 after the first balls 16 have been inserted into the groove 26. The shapes of the cams 10, 24 ensure radial and axial movement of the balls 15 so as to ratio down the axial movement of the bush 12 relative to the axial movement of the rod 8 to reduce the speed at which the tool 4 is finally clamped to the spindle 1. The operating rod 8 is spring biased to lock a tool to the spindle and is hydraulically released. The bush 12 is spring biased against a ring 19. Dogs 5 engage the tool 4.
Patent GB-675037-A (GB)
Title: Improvements in or relating to cathode ray tubes
IPC: H01J29/48
Filed: 1950-01-25
Abstract: 675,037. Cathode-ray tubes. GENERAL ELECTRIC CO., Ltd., and DUDLEY, M. D. Dec. 15, 1950 [Jan. 25, 1950], No. 1989/50. Drawings to Specification. Class 39 (i). An electric circuit including a cathode-ray tube with an indirectly heated cathode in the form of a hollow cylinder coated internally with emissive material is arranged so that in normal operation of the tube the operating temperature of the cathode lies within the range 730‹-780‹ C. and is preferably about 750‹ C., the surface area of the cathode coating being sufficient to give normal beam current at this temperature. The lower operating temperature results in a longer life for the cathode. Specifications 487,974 and 673,191 are referred to.
Patent GB-1298862-A (GB)
Title: Electroluminescent compositions and devices
Inventor: HAKKI BASIL WAHID
IPC: C01B25/06
Filed: 1970-01-15
Abstract: 1298862 Indium aluminium phosphide WESTERN ELECTRIC CO Inc 15 Jan 1970 [16 Jan 1969] 1997/70 Heading C1A [Also in Divisions C4 and H1] In 1-x Al x P where 0À2# x #0À5 is grown from a solution in molten indium and may be doped for example with Se, Te, or Sn present in the melt. The components of the melt may be heated under flowing hydrogen in the well portion of a graphite or boron nitride boat until reaction is complete and the melt held at the reaction temperature so that an indium melt saturated with indium aluminium phosphide is formed; the temperature is then lowered slightly and a substrate wafer is deposited from a sliding carrier on to the melt which is then cooled controllably to deposit the phosphide on the substrate which may be GaAs, with deposition on to a (310) (100) or (111) face, or InP. (With a substrate of GaAs a first matching layer of the mixed phosphide may be provided then a second layer of the mixed phosphide with a different ratio of In/Al). The substrate may be removed and zinc diffusion (into a Te-doped body) and conventional processing used to form electroluminescent mesa diodes.
Patent GB-103857-A (GB)
Title: Improvements in Fuse Mechanism for Projectiles.
IPC: F42C15/24
Filed: 1916-02-12
Abstract: 103,857. Rudge-Whitworth, Ltd., and Fountney, F. Feb. 12, 1916. Projectile fuses.-Relates to percussion fuses. According to this invention, an inertia pellet is normally held by resilient hooks in a cage or frame within a chamber, but on discharge of the projectile, the pellet and cage are moved to a position where the chamber walls allow the hooks to free the pellet, so that the fuse thus becomes armed. In the construction shown in Fig. 1, the inertia pellet i is enclosed in a cage formed by resilient hooked arms o secured to a ring m. Arms n extend forwardly and normally abut against the end of the chamber b<3>, which contains the mechanism, the cage and enclosed pellet being held in this position by a spring q. When the projectile is discharged, the cage and pellet set back, so that the hooked ends of the arms o spring out beneath a shoulder b<4>, thus arming the fuse. In a modification, the ends of the arms m are secured to the forward end of the chamber b<3> and the arms are weakened by notches, so that on discharge, the arms break and allow the cage and pellet to set back. The Provisional Specification also describes several other forms of fuses, in one of which a tubular pellet is normally secured to a fixed rod, which it surrounds, by a shearing pin. In a modification, the fixed rod may be dispensed with. In another form, the pellet passes through and is secured by a nut to a flange at the bottom of the chamber in the fuse-body. The disk is weakened at each side, so that it is ruptured when the pellet sets back on discharge.
Patent GB-992457-A (GB)
Title: Mineral-coated paper products and methods for making them
IPC: C08K3/34
Filed: 1963-01-17
Abstract: A coated paper product comprises a paper sheet carrying on at least one surface a dried deposit of a coating comprising a finely divided pigment and a binder at least 5% (preferably at least 50%) by weight of which is a water-insoluble salt of a terpolymer of at least 68% (preferably at least 78%) by weight of vinyl acetate, 7-30% (preferably 10-15%) of one or a mixture of C1-4 alkyl acrylates and 2-7% (preferably 2,5-5%) of one or a mixture of mono-ethylenically unsaturated dicarboxylic acids or anhydrides, the said polymer having a Ti value above 20  DEG C. and up to 35  DEG C.  Specified pigments are clays (especially kaolins), CaCO3, blanc fixe, talc, TiO2, coloured lakes and toners, carbon block, graphite, aluminium flake and powder, chrome yellow, molybdate orange, toluidine red and copper phthalocyanines.  Other binders which may be present include casein, soya protein, starch, chlorinated starch and starch ethers.  The coatings may be applied as aqueous dispersions by conventional methods, e.g. by immersion roll and doctor, gravure roller, brush or spray coating and dried e.g. by heat.  The coated product may be printed upon with single and multicolour inks and may be over-coated after printing with wax or lacquer.
Patent GB-847898-A (GB)
Title: Improved two speed motor-driven mechanism applicable in particular to electric washing machines
IPC: D06F37/30
Filed: 1959-01-20
Abstract: 847,898. Change-speed and reversing gearing. COMPAGNIE FRANCAISE THOMSONHOUSTON. Jan. 20, 1959 [Jan. 22, 1958], No. 2150/59. Class 80 (2). In a two-speed gear arrangement intended particularly for use on a washing machine, the basket 14 is driven by an electric motor 1 through low- or high-ratio drum and pulley units 4, 11 and 5, 12, a belt 15 and pulley 13, the low or high ratio being selected by operating a pivoted control lever 6 to rock the driving motor 1 about a pivot 2 and thus bring its spindle 3 into frictional engagement with the periphery of drum 4 or drum 5. To ensure an effective drive the peripheral surfaces of drums 4 and 5 are formed by encircling rubber bands, and in both extreme positions lever 6 is held in position by a spring mounted in a vertical slide 10 and engaging a link 9. With drum 4 engaged, basket 14 is revolved at low speed for washing or rinsing, and at high speed for drying with drum 5 engaged. Lever 6 may be arranged to operate a motor starting switch 16 and a reversing switch 17. As shown, drums 4, 5 are of the same, and pulleys 11, 12 of different diameters, but this arrangement may be reversed, or both drums and pulleys may be of different diameters.
Patent GB-488012-A (GB)
Title: Improvements in ships' side-lights
IPC: B63B45/00
Filed: 1938-01-22
Abstract: 488,012. Ships' side-lights. WESTMAN, C. J. F. Jan. 22, 1938, No. 2151. [Class 75 (iv)] Ships' side-lights each comprise an appropriately coloured source of light, e.g. a neon tube, having the form of a vertical shank 1 and a horizontal shank 2 which extends rearwardly parallel to the fore and aft centre line of the craft, there being fitted alongside and behind the vertical shank screens 3, 4, Figs. 3, 14, which are so positioned that, as shown in the successive Figs. 9 to 13, when viewed from ahead to abeam, the vertical light alone is first seen, then, in addition to the vertical light, a gradually lengthening horizontal light, and finally, a gradually diminishing width of vertical light with a continued lengthening of the horizontal light. The length of the vertical shank 1 is approximately 71 per cent of that of the horizontal one. In the modification shown in Fig. 15, the vertical shank 1 together with its screen 3 projects both above and below the horizontal shank 2.
Patent GB-751617-A (GB)
Title: Pump assembly and means for cooling bearings thereof
IPC: F04D13/04
Filed: 1954-01-25
Abstract: 751.617. Centrifugal pumps; air tubines. BENDIX AVIATION CORPORATION. Jan. 25, 1954 [Feb. 4, 1953], No. 2181/54. Classes 110(1) and 110(3) A portion of the pumped fluid is taken from the pump outlet and passed through each bearing retainer, for cooling purposes, and returned to the pump inlet. The impeller 130 of a centrifugal fuel pump is driven through shaft 92 by a two-stage turbine 14. Driving fluid, which may be derived from the discharge of an engine-driven compressor, passes from an inlet 30 to the turbine by way of a valve 50 which is urged towards its seat 52 by a spring 56. The valve is opened by a piston 74, which is acted on by pressure fluid which is admitted at 70 and passes through a filter 72. The opening of valve 50 is limited by a shim 82 of selected thickness. Fluid is taken from the pump outlet by way of duct 156, pipe 160 and ducts 164 and 154 to the space 152 between the end wall 42 of the valve housing 38 and a cap 106 bolted to the retainer 100 of a bearing 94, and to a passage 150 around the retainer, to cool the bearing. The fluid is returned to the pump inlet 128 by way of duct 166 and pipe 170. Fluid is also conducted through a duct 180 into a passage 176 around a bearing retainer 116 to cool bearings 114 and returned to the pump inlet by way of a duct 182, a pipe 186 and the pipe 170. The retainer 116 has cooling fins 178. Ducts 156 and 180 may be found as orifices to limit the flow of cooling fluid. Leakage of fluid from impeller 130 along shaft 92 to the bearings 114 is prevented by a carbon ring seal 142 and a slinger 146 which discharges to a drain (not shown). Specification 721,289 is referred to.
Patent GB-615226-A (GB)
Title: Optical measuring device for wires, electric cables and other objects
IPC: G02B21/00
Filed: 1946-01-24
Abstract: 615,226. Linear-dimension gauges. COMPAGNIE GENERALE D'ELECTRICITE. Jan. 24, 1946, No. 2419. Convention date, Sept. 4, 1944. [Class 106 (ii)] A device for observing or measuring the diameter of an object in which two identical images of the object are projected, without inversion of one with respect to the other, on to a-screen so as to touch for a predetermined value of the diameter to be measured comprises a light source 1 in the focus of a lens 2 constituting a collimator system. An objective 3 produces an enlarged image of the cable 5, 6 on a ground glass screen 8. An image doubling device is provided at the image focus 7 of the objective 3. This image doubling device may be in the form of a prism or two plane mirrors which turn independently of each other round a common axis. The two images are adjusted so that they touch, giving a uniform shading on the glass. Any deviation in the diameter of the cable will show as a dark or light band.
Patent GB-627330-A (GB)
Title: Improvements in or relating to work supports for grinding machines and the like
IPC: B24B19/00
Filed: 1947-01-27
Abstract: 627,330. Grinding knife-blades. FAIREST, Ltd., M., FAIREST, M., and FAIREST, D. H. Jan. 27, 1947, No. 2435. [Class 60] [Also in Group XXII] A grinding or other machine tool comprises a machine bed, a table movable longitudinally on the bed and carrying a transverselyslidable work slide and a push rod having a positivelylimited movement longitudinally of the table, a cam on the push rod to move the work slide, steps on the bed to engage the push rod near the ends of its movement with the table, the positive engagement of the push rod with the table at the ends of its limited movement determining the stroke of the table, together with hydraulic means for movement of the table. As applied to a knife-grinding machine a work slide 17 is carried on a table 12 which is moved towards or away from a cup wheel 16 by means of a piston 47 working in a cylinder 46. The table 12 has two V-grooves 35 inclined at 45 degrees to the axis thereof, corresponding grooves 36 being formed in the slide 17; blocks 37 secured to the table by screws 38 form guides for the slide which is held vertically by washers 39 on pins 41 projecting from the table through slots 42 in the slide. A longitudinal slot 52 on the table carries a push-rod 54 having a lateral arm 55 and a cam surface 58 on which bears a follower roller 60 secured to the slide 17. The slide 17 carries a bracket to which is pivoted at 20 a work holder 21 provided with a long block 22 and pad 23 against which the knife blade is held. An arm 30 of the work support 21 carries a roller 31 which runs on a bar 32, adjustment of the bar serving to impart a slight rotary movement to the work holder if required. In operation the table is moved towards the wheel 16, the blade 25 lying clear of the wheel as shown in Fig. 1. When the pushrod 54 encounters the stop 63, further movement of the table causes the roller 60 to ride over the cam surface 58 and move the work slide in to the grinding wheel against the pressure of spring 44. The movement of the table is then reversed and the blade is drawn across the wheel until the stop 67 contacts arm 55 of the pushrod; further movement of the table carries roller 60 to the lip of the cam surface 58, when the pressure of spring 44 causes the roller to push the rod 54 to the right and the slide 17 is retracted with a snap action.
Patent GB-367399-A (GB)
Title: Improvements in or relating to electrical indicating, recording and integrating instruments
IPC: G01R13/04
Filed: 1930-10-21
Abstract: 367,399. Inductances ; transformers. LEA RECORDER CO., Ltd. and CLIFFORD, C. F., Recorder House, Cornbrook Park Road, Manchester. Oct. 21, 1930, No. 2496. [Class 37.] Electrical measuring apparatus including a transformer having a short-circuited secondary winding comprising mercury or other fluid has the fluid located in an annular chamber a of metal which is divided electrically at e by insulation f, the joint being further insulated by strips h. The chamber a is also lined with enamel or other insulation i. The primary winding j and core l are located as a unit separate from the secondary chamber.