baber/WOPTO huggingface dataset:
Patent GB-740057-A (GB)
Title: An improved guide or pilot member for grindstone carriers in the grinding of valve seats
IPC: B24B15/00
Filed: 1954-04-09
Abstract: 740,057. Grinding valve seats. SOULET, A. April 9, 1954 [April 10, 1953], No. 10463/54. Class 60 A pilot member, for use in the grinding of valve seats, comprises a rod 1 including a solid frustoconical part 2 serving for securing the rod inside the valve guide, the part 2 being'held in position by a clamp the diameter of which corresponds to the diameter of the valve guide; telescoping over the upper cylindrical part of the rod 1 is a sleeve 16 which serves to guide the grindstone carrier, means being provided for locking the sleeve selectively in various longitudinal positions with reference to the rod. A member 5 located within a chamber 3 in the upper end of the rod 1 has a stud 6 projecting through an elongated slot 4 to engage one of a series of perforations 17 in 'the sleeve 16. The member 5 is pivoted at 7 and is biased by a spring 9. An inclined surface 10 on the member 5 cooperates with a wedge 11 slidably fitted in the chamber 3 and having a tailpiece 12 which can be acted upon by a small diameter tool to withdraw the stud 6.
Patent GB-768765-A (GB)
Title: Method of producing organic compounds of non-gaseous elements of the 2nd to 5th groups of the periodic system
Filed: 1955-04-12
Abstract: Organic compounds of the formula ElRx wherein El denotes a non-gaseous element of the 2nd to 5th group of the periodic system other than carbon and silicon such as As, Sb, Sn, Zn, Hg, Cd, Pb, B or P, R denotes alkyl, aryl or aralkyl and X denotes a number corresponding to the valency of the element, are prepared by reacting fluorides or complex fluorides of the elements with organo aluminium compounds, e.g. aluminium trialkyls, trialkyletherates, triaryls, triaralkyls or mixtures thereof, suitably at 10-250 DEG  C. and possibly under pressure and in the presence of diluents and/or solvents, e.g. hexane, benzene. Examples specify the use of aluminium triethyl and triethyl etherate.  Complex fluorides are defined as those which do not dissociate in water, liquid SO2 or liquid ammonia into the ions of the salts from which they are formed.
Patent GB-402656-A (GB)
Title: Improvements in or relating to discharge tubes for controlling electrical oscillations
IPC: H01J19/38
Filed: 1933-04-08
Abstract: 402,656. Thermionic valves. RADIOROHRENFABRIK GES., 101, Neu Lokstedterstrasse, Lokstedt, near Hamburg, Germany. April 8, 1933, No. 10574. Convention date, April 13, 1932. [Class 39 (i).] In a valve in which the electrodes are mounted so that the anode 7 is at right angles to the axis of the re-entrant foot 1, the upper portion 8 of the anode consists of perforated or meshed material, such as wire gauze. The valve may have a screen grid.
Patent GB-513334-A (GB)
Title: Improved electric heater of flowing water
IPC: F24H1/10
Filed: 1938-04-07
Abstract: 513,334. Electric liquid heaters. HOLLAND, L. April 7, 1938, No. 10605. [Class 39 (iii)] In a flow heater comprising flat passages 6 for liquid stacked and clamped together, with heating elements 10 arranged between adjacent passages, the elements comprise flat cores 15 carrying resistance windings and arranged between insulating layers 14, secured by metal edge clamps 16. Sheet metal collars 17 surrounding the cores at the ends thereof are pressed into contact with the feed wires and the ends of the windings. The passages are formed by copper pipes secured together by spaced metal clamps 11. The pipes are surrounded by insulation 13 and arranged in a casing 12.
Patent GB-1383133-A (GB)
Title: Fluids and capacitors impregnated therewith
IPC: H01B3/18
Filed: 1973-03-05
Abstract: 1383133 Insulating oils MONSANTO CO 5 March 1973 [6 March 1972] 10659/73 Heading C5F [Also in Division H1] An insulating liquid composition for use as a capacitor impregnant comprises a mixture of a diaryl sulphone, a halogen-free aromatic compound and 0À001 to 8% of an epoxide stabilizer. The aryl radicals may be phenyl, naphthyl or indanyl and may each have up to three C 1-8  alkyl substituents. The sulphone may comprise 10 to 80% by weight of the composition. Numerous examples of the halogen-free compound are given.
Patent GB-1301073-A (GB)
Title: Manufacture of coke
IPC: C10B55/00
Filed: 1971-04-22
Abstract: 1301073 Making coke RUTGERSWERKE AG 22 April 1971 [27 May 1970] 10668/71 Heading C5E A material for making isotropic coke comprises an aromatic hydrocarbon having at least 3 rings of which one is 5-membered and/or an aromatic heterocyclic compound having at least 3 rings of which one is 5 membered and having at least one N, O or S hetero atom in the 5- membered ring. The material is coked, e.g. by delayed coking, at a temperature of from 430‹ to 550‹ C. and at from 3 to 15 atmos. absolute. The hydrocarbon may be acenaphthylene, acenaphthene, fluorene, fluoranthene, or a mixture of 2 or more, and the compound may be carbazole, brasane (2,3-benzo-diphenylene oxide), diphenylene oxide or sulphide or a mixture of 2 or more. The compounds may be prepared by removing the unreacted portion from an alkali melt, e.g. NaOH and/or KOH, of high B.P. coal tar fractions, e.g. anthracene oil, or coal tar pitch, and decomposing the melt with water to produce the compounds or a mixture of the hydrocarbons and compounds may be prepared by removing the unreacted portion from an alkali metal or alkali metal amide melt of the coal tar fraction or pitch and decomposing the melt with alcohol. The coke may be calcined.
Patent GB-106912-A (GB)
IPC: H01H19/635
Abstract: 106,912. Read, A. E., Franks, J. E., and Brooks, M., (trading as Walsall Hardware Manufacturing Co.). Aug. 28, 1916. Snap-action switches; boxes; handles.-In electric-switch boxes containing two or more switches C<1>, C<2> operated simultaneously by one external turning member D, a guided longitudinally moving operating-bar E is arranged to engage with lever arms 6, 7 of the switches, the turning member being carried by the box cover B and furnished with a lever 11 engaging with a stud 12 upon the operating-bar. The bar is guided between the hollow cover and comprises two end-pieces 19, 20 and a centre-piece 17 insulated from each other, the end-pieces being adapted to be engaged by the switch arms and the centre-piece bv the lever of the turning member. The spindle 10 is mounted in a water-tight stuffing-box in the cover.
Patent GB-721534-A (GB)
Title: Apparatus for generating combustion products for use in a gas turbine plant or otherprime mover
Inventor: VOYSEY REGINALD GEORGE
IPC: F02C3/22
Filed: 1951-05-07
Abstract: 721,534. Gas-turbine plant. POWER JETS (RESEARCH & DEVELOPMENT), Ltd. April 23, 1952 [May 7, 1951], No. 10727/51. Class 110 (3). [Also in Groups XII and XIII] In a gas-turbine plant, the combustion products are generated by combustion of a low-calorific value fuel mixture in an apparatus comprising at least one combustion chamber and an inlet passage to and an outlet passage from the chamber, a gas-permeable heat-storage and heat-emitting mass being disposed in each of the passageways. Means are provided for bring- ing each part of the heat-storage mass first into contact with incoming gas passing to the chamber and then with outgoing gaseous combustion products discharging from the chamber so that the two passageways constitute a regenerative heat exchanger transferring heat from the hot combustion products to the incoming gas so as to raise the temperature of the latter sufficiently to sustain combustion of the mixture in the chamber. In Fig. 1, the two vertically-disposed passageways 7, 9 contain heat storage masses 7A, 9A and are connected at their top ends by the combustion chamber 8 which also contains a heat storage mass Sa. Two ducts 12, 15 are disposed parallel to the combustion chamber and are connected by change-over valves 6 to the limbs 7 and 9. A low calorific value fuel mixture, such as methane in mine ventilating air is compressed by the compressor 1, passes through the heat exchanger 3 and flows firstly through the limb 7, combustion chamber 8 and then through the limb 9 to the gas turbine 2. When the heat storage mass 9A is sufficiently heated, the change-over valves are operated and the incoming mixture then passes through the limb 9 to the combustion chamber and is discharged through the limb 7 to the turbine. An auxiliary fuel may be supplied through the injectors 24. The heat storage mass may comprise stacks of thin plates of refractory material. In Figs. 2 and 3, two vertically-disposed cyclone-type combustion chambers 26 are disposed side by side, the chambers having passages 7A or 9A containing heat storage material and inlets or outlets 28. Air first enters the left-hand chamber 26 tangentially through the passage 7A and inlet 28 and powdered solid fuel is fed in from the inlet 27. The combustion products discharge through the axial outlet 29 and through the replaceable filter unit 33, for example a pebble bed, then into the right-hand chamber 26 and are discharged through the duct 28 and passage 9A, the heat storage material in which is thereby heated. When the change-over valves are operated, the incoming air passes through the passage 9A and becomes heated before entering the right-hand chamber 26. An auxiliary liquid fuel supply means 5a, 5b (see Fig. 1) may be provided. Specification 693,616 is referred to.
Patent GB-610292-A (GB)
Title: Improvements in fluff and dust removal systems for cotton and like carding engines
IPC: D01G15/82
Filed: 1946-04-08
Abstract: 610,292. Carding-engines. HOLT, S., WARD, C. V., and ATMOSPHERIC CONTROL, Ltd. April 8, 1946, No. 10730. Addition to 565,905. [Class 120(iii)] [Also in Group XXVIII] In a fluff and dust removal system for a cotton and like carding engine, as claimed in the parent Specification, suction is applied to the base of the machine by a suction box with a valve therein which can occupy one of three positions, as follows:- (1) cutting off the suction connection to the box, (2) applying the suction to the base of the carding machine, and (3) applying the suction outside the machine. As shown, a valve plate b is a free fit within a suction box located at one end of a carding machine, and normally seats upon a seating surface c around a suction connection d disposed at about floor level. Pegs projecting from the ends of valve b ride upon the guide surfaces of plates f on opposite sides of the box when one end of the valve is raised by pulling out a handle i as in Fig. 5 to apply suction to the interior of the carding machine base, or when the other end is raised by opening a door g as in Fig. 6 to apply almost all the suction outside the machine.
Patent GB-234072-A (GB)
Title: Process for separating potassium and sodium hydroxides
IPC: C01D1/30
Filed: 1925-04-24
Abstract: Caustic potash and soda present together in concentrated aqueous solution are separated by a process of fractional crystallization in which the potash is separated at a relatively high temperature and the caustic soda by diluting the remaining mother-liquor and cooling. After removal of the caustic soda the liquor is concentrated and the process repeated.  A solution containing equal parts of caustic potash and soda, in an example, is concentrated to 60 DEG  B<\>ae. and crystallized at 60 DEG  C.  Caustic soda is obtained from the mother-liquor by diluting to 55 DEG  B<\>ae. and cooling.  In other examples, caustic soda is obtained from a solution containing 30 parts of potash to 70 parts of soda by diluting at 50 DEG  C. to 56 DEG  B<\>ae. and then cooling, and potash is obtained from a solution containing 60 parts of potash to 40 parts of soda by concentrating to 61 DEG  B<\>ae. and crystallizing at 70 DEG  C.  The mother-lye obtained in a fourth example by separating caustic potash from a solution richer in potash than soda is worked up by the methods used in the first or second examples. The crystals obtained contain about 10 per cent of impurity, either caustic potash or soda as the case may be, and may be purified by dissolving in water and repeating the process of fractional-crystallization.  Inorganic salts when present in the original liquor are advantageously removed by concentrating and filtering and organic impurities are destroyed by evaporating and heating.
Patent GB-818404-A (GB)
Title: A method for the production of maps in relief
Inventor: BICKMORE DAVID PELHAM
IPC: B29C51/10
Filed: 1956-04-09
Abstract: 818,404. Relief maps. OXFORD, UNIVERSITY OF. July 9, 1957 [April 9, 1956], No. 10790/56. Drawings to Specification. Class 146(2) Relief maps are formed by producing on a flat sheet of thermo-setting or thermoplastic synthetic resin material a representation of a map showing true outlines &c. deforming the sheet by heat and pressure over a mould having the desired contours in reverse, adjusting the outlines where they are distorted by the moulding operation to effect exact registration, employing the moulded adjusted map for the reproduction, by photographic or other means, of the map outlines and markings on flat sheets of similar material, and deforming these sheets on the mould. Preferably the flat sheets are deformed by the vacuum forming process.
Patent GB-294558-A (GB)
Title: Improvements relating to internal combustion engines
IPC: F02B47/02
Filed: 1927-04-23
Abstract: 294,558. Walker, E. April 23, 1927. Actuating by gas pressure; timing devices.-A pump A, which injects water into the cylinders of an internal-combustion engine is operated by the internal cylinder pressure and means are provided for adjusting the time of delivery. The plunger of the pump A having suction and delivery pipes a<1>, a<2>, is connected to a piston b<1> which is moved by the internal cylinder pressure against a spring b<2>, the casing B passing through the cylinder wall. The piston is also loaded by a spring b<5> through links b<8>, b<10>, and a pin b' the pressure of the spring being adjusted by a thumb screw b<12>, to vary the time of the injection. The Provisional Specification describes alternative means for regulating the spring pressure, comprising an internal flange against which the piston b<1> is pressed and, as an abutment for the spring, a sleeve which is adjustably mounted.
Patent GB-1101705-A (GB)
Title: Improvements in comminuting, mixing, emulsifying or the like machines
IPC: B02C18/00
Filed: 1964-03-16
Abstract: 1,101,705. Mixing machines; colloid mill; impact pulverizers. W. R. SERGEANT. 16 March, 1965 [16 March, 1964], No. 1091/64. Headings B1C, B1V and B2A. [Also in Division A4] Apparatus in which material to be comminuted, mixed or emulsified is caused by centrifugal force to flow through a narrow passage between a stator and a rotor where it is subjected to shearing action, has a supply hopper in which are rotatable cutters which also urge the substance onwards. An embodiment, Fig. 1, for pulping whole fruit, vegetable or meat has the narrow passage formed between detachable frustoconical rotor and stator rings 23, 26, of carborundum or industrial diamond, the clearance of which may be varied by axial adjustment of the rotor shaft 4. The stator is cooled by water flowing in channel 18. The rotor has four ribs 9 carrying detachable blades 10. A set of cutting and feeding elements 54 mounted on the upper end of the rotor shaft 4 operates in the base of the supply hopper 51, and a second, coaxial, set 53 is rotated by a variable speed motor 57. Each set of cutters comprises three elements each of three curved cutters having detachable blades (see Fig. 2, not shown). A mincing section comprising acutter 71 rotating in a perforated housing 73 is situated between the hopper and the shearing section. In another embodiment, Fig. 3, especially for treating fibrous vegetable material or chemical products the material flows through passages 110 in the rotor 108 from a centre inlet 109 to its periphery and thereafter through a narrow annular passage 118 adjustable by axial movement of the rotor, and round the exterior of the rotor to outlets 128, 129 or 130. The rotor is equipped with beating members 114, 115 and the hopper 132 has at least one set of rotating knives 138 interdigitating between counterrotating discs 137, see also Fig. 4 (not shown).
Patent GB-1102925-A (GB)
Title: Improvements relating to machine tools
IPC: G05B19/04
Filed: 1965-03-15
Abstract: 1,102,925. Lathe details. B. SCHONDORFF. [trading as WILHELM HEGENSCHEIDT KOMM GES.]. 15 March, 1965 [13 March, 1964], No. 10928/65. Heading B3T. [Also in Division H2] A tool slide 1 of a lathe is driven by quicktraverse motor 4 or inching motor 7, spindle 2 being coupled to rotary plate 12 on which stops 13, 14, co-operate with switches 17, 18. The plate also carries contacts 15, 16 associated with commutator 19. Operation is started from a predetermined outermost slide position when switch 17 is made conductive. The required diameter of the workpiece is set by selective actuation of push-buttons 22-25, the rows of buttons 22, 23, corresponding to the centimetre range and being connected to step-by-step switch mechanism 20, the rows 24, 25 being provided for the millimetre and tenths of millimetre range and connected to commutator 19. By pre-selection, a predetermined contact of the mechanism 20 is made conductive, and a predetermined segment of the commutator is connected to a contact. The counting of complete revolutions of plate 12 is continued until the preselected number of centimetres is obtained, whereby motor 4 is switched-off. After a further revolution of the plate 12, which is not counted, the motor 7 is switched on until stop 14 actuates switch 18 to make the preselected segment of the commutator conductive. The inching movement is discontinued and a brake applied.
Patent GB-636038-A (GB)
Title: Improvements in and relating to cams
IPC: F16H53/02
Filed: 1947-04-24
Abstract: 636,038. Cams. BRITISH THOMSONHOUSTON CO., Ltd. April 24, 1947. No. 10998. Convention date, April 27, 1946. [Class 80 (iii)] A cam assembly having a series of cam elements consists of a cylindrical base 1, having a plurality of continuous circumferentially extending grooves 3, covered by a mask 2 of sheet material having rows of non-continuous circumferentially extending slots 4 coincident with the base grooves 3, so that a series of actuating members, one coinciding with each groove, will either ride on the mask surface or fall through the slots 4 as the assembly is rotated. To locate the mask 2 in position it has flanges 7a which pass through an axial slot 5 into an axial hole 6 in the base 1 and which are spread by a wedge. The flanges 7a may be soldered or welded together. Specification 636,039 is referred to.
Patent GB-1001047-A (GB)
Title: Improvements in or relating to pipe couplings
IPC: F16L19/00
Filed: 1963-03-20
Abstract: 1,001,047. Pipe couplings. E. COOKSON. June 22, 1964 [March 20, 1963], No. 11019/63. Heading F2G. A pipe coupling comprises first and second pressure rings 8, 15 located on pipe ends 1, 2 to be coupled, an annular gear-wheel 12 surrounding the rings and in threaded engagement 17 with one ring, and a worm-gear 23 in engagement with external gear teeth 14 on the wheel such that rotation of the wheel by the worm-gear in one direction draws the rings towards each other whilst opposite wheel rotation draws the rings apart. A two-part casing 18, 19, housing the worm gear, encloses the annular gear-wheel and is locked against rotation by pins 26 passing through corresponding apertures in the pressure ring 8 and a pipe flange 5 threaded to the pipe 1. Pressure ring 15 is similarly locked against rotation by pins 27 engaging a pipe flange 6 threaded to the pipe 2. As illustrated in Fig. 1 (not shown), diametrically opposed holes are provided in the casing extension housing the worm gear for the insertion of a split pin through a corresponding diametral hole in the worm gear shaft to lock said shaft after the coupling is tightened. Said shaft may be power driven and a sealing ring may be disposed between the pipe flanges. Moreover, the pipe flanges may be integral with the pipes or the pressure rings may be of twopart construction adapted to locate in peripheral pipe end grooves and lock against rotation therein. Furthermore, the annular gear-wheel may be formed integral with one of the pressure rings.
Patent GB-1336664-A (GB)
Title: Process and apparatus for selectively hardening needles
IPC: C21D9/26
Filed: 1971-11-23
Abstract: 1336664 Machine needles; felting needle TORRINGTON CO 23 April 1971 [9 June 1970] 11025/71 Headings D1G and D1R [Also in Division C7] A needle has zones of varying hardness along its length; exemplified are a felting needle (Fig. 2), and a sewing needle (Fig. 3), the different zones having hardness ranges as shown, the values being measured on the Rockwell C scale. The differential hardness is obtained by varying the heat input during a tempering operation according to the hardness desired.
Patent GB-610934-A (GB)
Title: Improvements in or relating to ventilators
IPC: F24F7/02
Filed: 1946-04-10
Abstract: 610,934. Ventilators. O'HEA, I. J. April 10, 1946, No. 11035. [Class 137] An extraction ventilator, e.g. for fixing over an opening in a roof, comprises a rectangular throat 15 formed by two outwardly facing troughs 11 open at their ends, and two end plates 16. Extending between the,plates 16 are a covering member 18 above and spaced from the throat to provide openings 22, and external spaced baffles 23 associated with each opening 22 and extending upwardly beyond the edges of the member 18, and spaced from and parallel to the end plates are internal baffles 29, which may be formed by channel members, and have permanent closure means between their lower edges and the end plates. The troughs 11 and plates 16 may be integral with and bent up from a base plate 33, which plate 33 provides a horizontal fixing flange around the four sides of the throat 15.
Patent GB-1103043-A (GB)
Title: Optical apparatus
IPC: G01N21/45
Filed: 1965-03-16
Abstract: 1,103,043. Interferometers. M. CHRIST [trading as MARTIN CHRIST, FABRIK ELEKTROMEDIZINSCHER APPARATE]. March 16, 1965 [March 19, 1964], No.11054/65. Heading G2J. Optical apparatus comprising a light-source 1, a slit 2, a measuring cell 4, a lens 6 arranged to form an image of the slit, further includes a system for producing interference fringes, which consists of a polarizing prism 12 and a first polarizing filter 13 disposed in that order between the measuring cell 4 and the image plane 7 of the apparatus, and a second polarizing filter 9 crossed with the filter 13 and disposed between the lightsource 1 and the prism 12. When the cell 4 contains a medium whose refractive index Á varies across the light-path through the cell the interference fringes set up in the image plane constitute a direct image of the Gaussian distribution curve dÁ/dx/x of the spatial derivative of the refractive index Á across the light-path. The polarizing elements may be mounted in a common rotatable frame. In the embodiment of Fig. 3 a second polarizing prism 10 is provided between the filters 9, 13. The prism 12 and filter 9 are mounted in a rotatable frame 8 and the prism 10 and filter 13 are mounted in a second rotatable frame 11. In a further embodiment the measuring cell is positioned in a collimated beam of light. A cylindrical lens may be inserted between the filter 13 and the image plane 7 with its axis perpendicular to the slit 2.
Patent GB-992263-A (GB)
Title: Improvements in electric steam irons
IPC: D06F75/18
Filed: 1962-03-22
Abstract: 992, 263. Steam-irons. LICENTIA PATENTVERWALTUNGS-G.m.b.H. March 22, 1962 [March 27, 1961], No. 11060/62. Heading D1A. In an electric steam iron of the type having in the sole plate 1 a steam generating chamber 4 communicating with a steam collecting chamber 5, the two chambers are closeably by a common cover plate 8 held in place by a further plate 9 which provides part of passageways linking the collecting chamber 5 to the ironing surface. In Fig. 1, item 7 is an inlet drip valve and in Fig. 2, item 21 is a water baffle device.