baber/WOPTO huggingface dataset:
Patent GB-697673-A (GB)
Title: Process for the production of rutile
IPC: C01G23/053
Filed: 1951-01-03
Abstract: In the production of rutile by hydrolysis of a titanium sulphate solution, without the addition of nucleating agents, and by subsequent calcination of the hydrolysate at 700-950 DEG C, the solution, containing 180-260 grms./litre Tio2 is first heated until it becomes strongly turbid due to the formation of colloidal titanium hydrate, and hydrolysis is initiated by mixing with an aqueous liquid, e.g. water or ferrous sulphate solution, or 5N caustic soda solution, or 5N sulphuric acid solution, which can be hot or cold, and which may be added in amounts equal to 10-100 per cent of the volume of the titanium sulphate solution. After the addition, the solution may be boiled, preferably for an hour at the most, and the hydrolysate is then advantageously cooled within the mother liquor to below 95 DEG C by adding colder water or aqueous solution; alternatively, the hydrolysate is separated rapidly from the mother liquor.  Prior to or during heating of the solution before the addition of the aqueous liquid, there may be added water or an aqueous solution, e.g. ferrous sulphate, 5N caustic soda, or 5N sulphuric acid solution, provided that the titanium sulphate solution is not diluted below the limit specified above.  A solid alkaline substance, e.g. sodium hydroxide or calcium oxide, may alternatively be added.
Patent GB-1300532-A (GB)
Title: Improvements in or relating to lubricant distributors
IPC: F16N25/02
Filed: 1970-01-02
Abstract: 1300532 Lubricant distributer HOUDAILLE INDUSTRIES Inc 2 Jan 1970 [9 April 1969] 295/70 Heading F2A A lubricant distributer has a distributer cylinder 19 in which is located a piston 24 having three lands 26, 27, 28 connected by rods 29, 30, the cylinder being connected by passages 42, 43 to a metering cylinder 36 having a piston 37, the arrangement being such that when lubricant is supplied under pressure to the distributer cylinder via the ports 31 or 32 the pistons 24 and 37 are displaced so as to expel a metered quantity of lubricant through one of the outlet passages 47 or 48, the outlet passages being interconnected by a passage 49, 50 in which is located, in a cylindrical bore 51, a rotatable valve member 52 which in one position blocks the interconnecting passage, and when rotated to a second position allows flow of lubricant between the two outlet passages. The valve member preferably has a rubber portion 53 located in the passageway, to which is bonded a metal portion 53. The metal portion may have a sealing ring 62 provided in a slot 63. The valve member is held in place by a circlip 57 which engages grooves 58, 59 in the valve and bore. A slot (61) is provided in the end face of the valve member to indicate the position of the valve and for engagement with a tool for rotating the valve.
Patent GB-549763-A (GB)
Title: Improvements in or relating to fluid-blast electric circuit interrupters
IPC: H01H33/70
Filed: 1942-01-09
Abstract: 549,763. Gas-blast switches. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. Jan. 9, 1942, No. 362. Convention date, Jan. 9, 1941. [Class 38 (v)] The arc formed between the two tubular contacts 27, 29 when the contact 29 is lowered by the pneumatic motor device 51, 53, is caused to rotate about the annular path defined by the rims of the contacts, by means of a pair of coils 31, 39 connected, in the form shown, in series in the main circuit. At the same time a gasblast from a tank 5 is passed through pipe 61 into the arcing space 25, and passes radially inwards through the arc and through the contacts. Insulating liners 64 prevent movement of the arc roots into the contacts. In a modification, Fig. 2 (not shown), the blast is led from the outer ends of the contact-tubes inwards and flows radially outwards through the arcing space, the tubes being fixed and adapted to be bridged by a movable tubular contact sliding in the lower fixed contact-tube. The coils areprotected by annular insulating discs which lie opposite to one another in the arc space, and may be of gas-evolving material. Such an arrangement is also shown in Fig. 3, the tubularcontacts 87 being fixed and adapted to be bridged by contact 97. The coils 89 are protected by annuli 95 and annular insulating arc-splitterdiscs 107 are provided between them and spaced from them and from one another by insulating pieces 109 to the number of four, equally spaced circumferentially so as to provide egress for the gas between them. The discs 95 and splitters, 10 provide a series of annular nozzles, and may be of gas-evolving material.
Patent GB-644470-A (GB)
Title: Improvements in the surface hardening of steel articles
IPC: C21D1/10
Filed: 1948-01-06
Abstract: The surfaces of steel articles are heated by induced currents, subjected to a current of gaseous cooling medium for sufficient time to cool the surface to a predetermined temperature and then immediately subjected to the action of a liquid coolant, e.g. water. The predetermined temperature is that temperature at which undesirable structures are formed at the cooling rate attainable by gaseous cooling.  In a steel containing 0.3-0.35 per cent carbon, 0.7-1.0 per cent manganese, 0.9-1.20 per cent chromium and the balance iron the liquid coolant is applied when the temperature of the steel has dropped to between 500 DEG C. and 400 DEG C. The gaseous medium may be air supplied at 2 to 4 kgs. per cm.2 for 3 to 15 seconds and it may also be supplied during the application of the liquid.
Patent GB-213352-A (GB)
Title: An educational drawing appliance
IPC: G09B11/06
Filed: 1923-01-05
Abstract: 213,352. Smith, A. J. Q., (Alpha Game & Toy Co., Inc.). Jan. 5,1923. Tracing-appliances.-An educational drawing- device comprises a number of picture sheets 1 - - 6, Fig. 3, having parts of pictures on each sheet printed in register so that a complete picture can be re-drawn upon transparent paper held in fixed relation to the picture sheets. The sheets are provided with binding apertures 25 and in the preferred form are bound in a. cover 11, Fig. 1, a tracing-pad 12 being detachably secured by fasteners 14 to the outer edge of the cover. Each part of a picture on different sheets is provided with an index mark to facilitate tracing; in Fig. 3 the index comprises the letters a - - d. Instead of turning the picture sheets over in book fashion, they may be mounted to slide or rotate. Picture sheets dealing with geography, portrait work, and animal study are mentioned. Advertisements may be printed on the tracing-pad.
Patent GB-100547-A (GB)
Title: Manufacture of Fuel from Anthracite Duff or Small Coal.
Inventor: LLOYD DAVID PERCY
IPC: C10L5/10
Filed: 1916-01-11
Abstract: 100,547. Lloyd, D. P., and Jolley, T. H. Jan. 11, 1916. Composition fuel.-Ground anthracite duff or small coal is mixed with lime or cement and salt, and the moistened mixture is pressed in steamheated moulds coated or lubricated with pitch.
Patent GB-160953-A (GB)
Title: Improvements in explosives
IPC: C06B21/00
Filed: 1920-01-06
Abstract: Initiators of detonations are prepared in the form of anhedra, flakes, or thin plates by controlling the structure of crystals produced by precipitation by increasing the density or viscosity of the liquid in which the crystals are separated by means of a non-collodal solution which has no chemical or appreciable solvent action on the explosive.  For example, lead azide is precipitated by the addition of a solution of sodium azide to a solution of lead acetate containing sodium nitrate, or by the simultaneous addition of solutions of sodium azide and lead acetate to a solution of sodium nitrate.  Specification 142,898 is referred to.
Patent GB-909402-A (GB)
Title: Improvements relating to systems for producing deformations in the surface of a deformable medium
IPC: H04N5/74
Filed: 1959-01-06
Abstract: 909,402. Light modulating; television. GENERAL ELECTRIC CO. Jan. 6, 1959 [Jan. 13, 1958], No. 484/59. Addition to 708,526. Class 40 (3). In a television system in which the deformations produced in a deformable medium (liquid) 15, Fig. 1, when scanned by a picture signal modulated electron beam 13 are employed to modulate light from a source 21 which is then projected on to a viewing screen 33, the effect of decomposition of the molecules of the liquid by the electron beam resulting in the production of different and longer molecules (termed " cross - linking ") which appear as lumps on the surface of the liquid, is prevented from interfering with the deformation produced by the picture signal by providing in the container 17 two electrodes between which an applied D.C. potential produces an electric field which causes surface motion of the liquid so that the lumps are moved out of the scanned area. Figs. 2 and 3 show one embodiment in which the electrodes consisting of conductive coatings 37, 39 produce movement of the liquid 15 in the direction of the arrows 38 (for the polarity connections from source 46 shown) and therefore transport the undesired lumps from the area of the raster 42 towards the edge of the container 17 where they mix with an effective reservoir 49 (due to it being outside the scanned area and receiving the surplus from the scanned portion 50) of non-cross-linked liquid and from which liquid flows to replenish the deficiency in the raster area 42. To prevent the thickness of the liquid in the raster area from becoming non-uniform due to non-uniform flow resulting from the electric field extending over only a portion of the raster area the electrodes may be formed as shown at 53, 55 (Fig. 4), so that the field is effective over the whole raster area. In this embodiment the electrodes consist of highly conducting material deposited on a transparent conducting film 51 of high resistivity.
Patent GB-513829-A (GB)
Title: Improvements in the manufacture of plastic masses
IPC: C08L89/00
Filed: 1938-01-07
Abstract: 513,829. Phenol-aldehyde condensation products. PECHIN, L. C. F. Jan. 7, 1938, No. 515. Convention date, Jan. 7, 1937. [Class 2 (iii)] Proteins or nucleo-proteins, in the form of caseinates or amylates, are reacted with phenols in the presence of aldehydes to yield plastic masses. The caseins may be dissolved in caustic soda, caustic potash, alkaline salts, amines, ethanolamines, calcium chloride or calcium sulphate. The masses may be blended with sulphur, slate, asbestos, mica, phosphorescent products such as zinc sulphide, calcium sulphide, strontium sulphide, X-ray filtering products such as fluorescein, salts of lead, fillers such as cotton, paste and wood flour, cellulose, rags and paper, colouring matters, pigments, metallic oxides, wood oil, rubber, resinates, plasticisers and camphor. In examples (1) potassium or sodium caseinate is condensed with phenol and formaldehyde, the product being blended with acetic acid and an acetin ; (2) sodium amylate is condensed with phenol and formaldehyde and the product blended with an acetin ; (3) a casemate is condensed with phenol and formaldehyde, the product being blended with methy-diphenylamine and an acetin ; (4) the products of examples (1) and (2) may be hot-blended with fatty acid in the presence of solvents ; (5) products derived from a caseinate and an amylate are blended and then polymerised in the presence of aqueous hydrochloric acid ; (6) products derived from caseinates or amylates are blended with saccharoses or henabioses (in the form of acetates).
Patent GB-587340-A (GB)
Title: Improvements in fasteners for doors of cold storage rooms, such as ice safes and the like
IPC: E05B65/00
Filed: 1945-01-05
Abstract: 587,340. Door fastenings. DOUGLAS & SONS, Ltd., W., and DOUGLAS, W. S. Jan. 5, 1945, No. 526. [Class 44] A fastener of the rotary wedge type for doors of cold rooms or refrigerators comprises a spindle 3, Figs. 1 and 3 passing through the door 1, with outer and inner handles 4, 5, the inner end carrying also two radiating abutment members 7, 16, angularly spaced apart, which co-act with appropriately directed cam surfaces on a wedge plate 9 so that wedging action is obtained both on closing and opening. Wedging action between the member 7 and a cam surface 8 on the rear face of the plate 9 on closing, forces the door against the usual gaskets 14, 15. On opening, the seal is broken by the action of the tongue 16 riding on a cam surface on the front of the plate 9 after the tongue 7 is disengaged from the rear surface thereof.
Patent GB-1036822-A (GB)
Title: A process for treating chlorine
IPC: B01D47/02
Filed: 1963-01-04
Abstract: <PICT:1036822/C1/1> Moist chlorine gas is cooled, washed and dried by contacting the gas with sulphuric acid using conditions of temperature and pressure defined by the area bounded by the isothermal line at 9.8 DEG  C., the line of equilibrium A between liquid aqueous sulphuric acid and the solid hydrates of sulphuric acid in the range 100% sulphuric acid to 42% sulphuric acid, and the curve B through the points 0% acid, 9.8 DEG  C.; 34% acid, - 20 DEG C.; and 42% acid on the line of equilibrium.  The sulphuric acid may be cooled by the evaporation of liquid chlorine introduced into the gas or liquid phase.
Patent GB-223778-A (GB)
Title: Improvements in cleaning devices for the tubes of steam boilers and the like
IPC: F28G3/16
Filed: 1924-01-09
Abstract: 223,778. Jensen, M. S. J. Jan. 9, 1924. Cleaning, fluid-pressure processes for.-In means for cleaning boiler tubes &c. a pressure medium supply tube 4 is adapted to slide axially and to revolve in a stationary sleeve 3 and is fitted at its discharge end with an adjustably seated valve ball 8 having a cylindrical discharge spout 9, the ball being adapted to be rotated independently of rotation or axial movement of the tube 4 so that it may be adjusted in a plane perpendicular to the plane of rotation of the supply tube. The rotation of the valve ball 8, which is pivoted about two pins 10, 11 provided diametrically in the socket 6, is effected by means of the rotation of the shaft 14 having at one end a crank 13 on which is journaled a small ball 12 supported by the valve ball. In operation the pressure medium flows from the tube 2 by the opening 5 and the shaft 14 is turned through a certain angle, in which position it is locked to a hand-wheel serving for rotation of the supply tube. Rotation of the tube 4 will clean all tubes located within a conical area formed by the axis of the discharge spout as generatrix. The discharge spout 9 is arranged diametrically of the valve ball 8.
Patent GB-866895-A (GB)
Title: Improvements in or relating to terpolymers of vinylidene chloride, vinyl chloride and higher alkyl acrylates
IPC: C08F214/08
Filed: 1960-01-07
Abstract: Terpolymers are prepared from 75 to 80% (by weight) vinylidene chloride, 15 to 20% vinyl chloride and 5 to 10% of a C8-18 alkyl acrylate.  They are suitable for forming into films. Polymerization may be effected in aqueous emulsion at 20 DEG  to 40 DEG C. and a pH of 2,0 to 3,0 and continued to 80 to 90% conversion.  The acrylate is preferably added to the system 5 to 10 minutes before the mixture of chlorides.  Suitable catalysts are peroxides, persulphates and azo compounds, e.g. sodium or potassium persulphate, peracetic acid, hydrogen or benzoyl peroxide, cumaene hydroperoxide, t-butyl perbenzoate, or azo-bis-isobutyronitrile.  Redox catalysts are also suitable, e.g. a combination of one of the above peroxygen compounds and a reducing agent such as sodium sulphite, sucrose or ferrous gluconate.  Suitable emulsifying agents are C18+ alkyl or alkaryl sulphonates, e.g. dodecyl or octadecyl benzene sodium sulphonate, sodium or potassium octadecane-1-sulphonate and sodium salts of sulphonated C18+ paraffin oils.  0,1 to 3% thereof may be used.  In examples vinylidene chloride, vinyl chloride and 2-ethyl-hexyl acrylate are copolymerized in an aqueous phase containing potassium persulphate, sodium bisulphite, nitric acid, dodecyl benzene, sodium sulphonate, glycerine and ferric nitrate.  The products coagulated with aluminium sulphate, have a bulk density of 0,35 to 0,45 and a melting range of 115 DEG  to 140 DEG C. 5% of acrylate in the terpolymer has the plasticizing effect of 2% of conventional plasticizer.  The Specification also describes the extrusion of biaxially oriented films from the above terpolymers containing dibutyl sebacate as plasticizer and tetrasodiumpyrophosphate as stabilizer by the extrusion procedure described in Specification 656,735.
Patent GB-946320-A (GB)
Title: Staple fibres
Inventor: HALL ANTHONY PHILIP
IPC: D02G1/12
Filed: 1961-01-06
Abstract: Spun yarn and fibrous batts are made from crimped staple fibres recovered from staple fibre and/continuous filament waste produced e.g. stripped or cut from used bobbins, during the manufacture of commercially available fibres of synthetic linear polymers e.g. nylon, polyethylene terephthalate or polypropylene.  In the recovery process, the waste is cut to random length (2-24 inches) subjected to breaking and opening e.g. in a "garnetting" machine, collected into an intermediate package e.g. a ball of sliver, unwound and treated to a "parallelising" process e.g. by "gilling", to form a uniform sliver which is crimped, heat-set, coated with an anti-static dressing (if such dressing is not already present) and cut to staple fibre length. The crimped fibre may be blended with natural or synthetic fibres. U.S.A. Specification 2, 311, 174 is referred to.
Patent GB-934094-A (GB)
Title: Automatic hull height control system for a hydrofoil vehicle
IPC: B63B1/28
Filed: 1962-01-08
Abstract: 934,094. Automatic control of hydrofoil craft. NORTH AMERICAN AVIATION Inc. Jan. 8, 1962 [Feb. 27, 1961], No. 642/62. Class 38 (4). [Also in Group XXXIII] In an automatic control system for a waterborne vehicle having a hull and hydrofoils a reference signal is generated representing the height at which it is desired that the hull travel above the sea and means are provided for limiting said signal to prevent contact with the sea and broaching of the hydrofoils. As shown, Fig. 6A, an adjustable height reference signal is fed from a generator 30 to a limiter 31 which modifies the amplitude of the reference signal to prevent it exceeding an upper limit or falling below a lower limit. The modified reference signal is compared with the output of an height senser 32 in a summing means 33 to provide a signal indicative of deviation from the desired height. The height senser 32 has a flat response from zero frequency to a frequency representative of the highest wave frequency to which the control system is to be subjected. The deviation signal is fed to a hydrofoil servo actuator 34 to control the attitude of the hydrofoils so as to tend to reduce the deviation to zero. A low-frequency filter 35 prevents high-frequency components of the actual height signal from affecting the response of the servo system; alternatively, the filter can be connected between the summing means 33 and servo 34. The upper and lower reference limits provided by limiter 31 are dependent on the output of a wave height detector 37 which is connected to the wave height senser 32. The elements 31, 37, 32, 35 are arranged so that the limiting is in accordance with Fig. 4 where 2H is the waveheight, trough to crest, and the hatched lines are the upper and lower limits of the hull. The wave-height detection function of detector 37 is accomplished by a high-pass filter having a cut-off frequency approximately equal to the cut-off frequency of the low-pass filter 35. Vertical acceleration is reduced by feeding the servo 34 from an accelerometer 38 through an equalization device 40 which provides a signal to the servo which is a function of both the vertical acceleration and the first integral of vertical acceleration. A signal from an accelerometer switch 41 is fed to the servo 34 and a throttle servo 42 to reduce the vehicle speed and cause the hydrofoil effect to become inoperative under sea state conditions which cause excessive contouring by an automatically controlled vehicle. An integrator 39 is connected in parallel to the output of the summing means 32 and servo 34 to reduce the steady-state height error to a minimum.
Patent GB-687493-A (GB)
Title: Improvements in or relating to braiding machines
IPC: D04C3/00
Filed: 1950-01-10
Abstract: 687,493. Braiding-machines. FRASER, R. M., andFABRICA ARGENTINA DE ALPARGATAS S.A.I.C. Jan. 10, 1950. No, 662/50. Class 74 (i). As a turntable 1, having a sector cut away, is rotated, a member 2 oscillates in synchronism with the rotation of and in a plane intersecting that of the turntable, to deflect yarns travelling from bobbins 4 to a ring 6 at the braiding point, over one or other of deflectors 7, 8 above and below the turntable : the resulting braid passes round a take-off pulley 20 and, via a guide 14, to a rotating bobbin 3. As the turntable rotates, a fixed gear 11 oscillates the member 2 through step-up gearing, crank 33, rod 10 and a bell crank lever and rotates the pulley 20 through step-down gearing. The bobbin 3 is driven from the shaft carrying the pulley 20 through gearing a shaft 19, and a friction coupling 18. A lead screw 15 carrying a sleeve bearing the guide 14 is rotated from the bobbin 3 ; and left- and right-hand threads cut on the lead screw or in the sleeve produce reciprocation of the guide. Radial slots in the gear wheel 11 allow passage of yarns to the ring 6. Cores, such as 12a, are fed axially from above and below the turntable. Spring- controlled arms 23 and brakes on the bobbins 4, control the tension and supply of the yarns. The arms 23 may actuate a cut-out switch in the event of yarn breakage.
Patent GB-556795-A (GB)
Title: An attachment for cups, tumblers, beakers and like vessels
IPC: A47G23/02
Filed: 1943-01-13
Abstract: 556,795. Handles. PHILLIPS, A. L., and RAFFERTY. J. Jan. 13, 1943, No. 665. [Class 66] A handle for attachment to cups, tumblers &c. is provided with a shoulder or abutment 1 engaging the rim of the vessel and with a band 8 adapted to encircle it, the ends of the band being attached to a screw pin 6 disposed in a slot 4 in the handle and adjustable therein to tighten the band, further tightening being effected by turning a screw 3 to bear against the vessel and force the lower end of the handle away from it.
Patent GB-714719-A (GB)
Title: Improvements in pneumatically operated control system
IPC: F15B3/00
Filed: 1952-01-09
Abstract: 714,719. Fluid-pressure servomotor-control systems. TAYLOR INSTRUMENT COS. Jan. 9, 1952 [Jan. 13, 1951], No. 709/52. Class 135 In a relay having an adjustable amplification factor for a pneumatically-operated control system, the pressure fluid controlling the relay is taken from a pressure-dividing network connecting the signal and output conduits leading, respectively, towards and from the relay, and the member in the relay responsive to the control pressure actuates a valve regulating a further, selectively adjustable, pressure supply which is then led away as the output fluid. The invention is shown applied to the system forming the subject of Specification 713,782 wherein the relay 40 is inserted after the 1:1 isolating stage B. A conduit 50, which includes two restrictions, e g. needle valves G1, G2, of which only one need be adjustable, interconnects the signal line 37A and the output line 49 from the relay, and the pressure controlling the relay is led off from between the restrictions and applied to a diaphragm 43. The latter is loaded by a spring 46 and is connected to a baffle plate 45 controlling the leak-off from a nozzle connected in line 49. A separate supply of pressure air is fed to line 49 past a restriction 48. The output from the relay is fed back past the derivative restrictor T to a capacity 29 and to chamber 18 of the first stage A, and the output from this stage will thus be amplified and include a component corresponding to the first time differential of the variable. The control pressure acting on diaphragm 43 is substantially a constant pressure so that, in a modification, this pressure is also applied to a diaphragm as a loading pressure in substitution of the spring 69 in unit D.