baber/WOPTO huggingface dataset:
Patent GB-1224855-A (GB)
Title: PROCESS FOR THE REDUCTIVE CLEAVAGE OF SULPHONIC ACID GROUPS FROM ANTHRAQUINONE-beta-SULPHONIC ACIDS
Inventor: BUECHELER PAUL
IPC: C25B3/25
Filed: 1969-05-29
Abstract: 1,224,855. Electrochemical reductive cleavage of # - sulphonic acid groups. SANDOZ Ltd. 29 May, 1969 [5 June, 1968], No. 27239/69. Heading C4P. [Also in Divisions C6-C7] Anthraquinone - # - sulphonic acids which contain an electron donator as substituent in at least one α - position of the nuclei bearing the sulphonic acid group or groups are subjected to electrochemical reductive cleavage of # - sulphonic acid groups. The electron donator may be a hydroxyl group; a lower alkoxy group; an amino group; an alkylamino group; a dialkylamino group; a phenylamino groups; a thiol group; an alkylthio group or an arylthio group. The reaction may be carried out with the anthraquinone - # - sulphonic acid in solution or suspension, e.g. in an alkali metal hydroxide or ammonium hydroxide electrolyte. The cathode may be of carbon, platinum, tungsten, lead, antimony, gold, nickel, tantalum, palladium, silver, tin, zinc, manganese, copper, cadmium, thallium, copper alloy, lead dioxide, mercury, gallium or a liquid amalgam; and metal cathodes may be of bright rolled sheet or sponge. The anode may be of graphite, carbon, lead, lead dioxide, iron, nickel, platinum or platinized titanium. Anode and cathode may be separated by a diaphragm, e.g. of clay. The reaction vessel may form the cathode.
Patent GB-890482-A (GB)
Title: Improvements in or relating to means for propelling and steering ships
Inventor: PRIVETT JOHN RICHARD
IPC: F16N7/40
Filed: 1959-08-10
Abstract: 890,482. Manoeuvring ships. TRANSPORT EQUIPMENT (THORNYCROFT) Ltd. June 22, 1960 [Aug. 10, 1959], No. 27245/59. Class 114. [Also in Group XXXIV] A ship's propelling and steering means comprises a hollow rudder 1, a propeller shaft 3 mounted therein, a vertical drive shaft 9, passing through the rudder post 1#, a right angled gear drive 8, 8a on the shafts 3, 9, and a second right angled gear drive 12, 12a, the latter being driven by a prime mover, e.g., a gas turbine connected to a shaft 14, and a centrifugal clutch 14e. The gears and bearings are lubricated by a fixed displacement pump 20 driven from the bevel 12a by a second bevel 20b, which supplies oil from a reservoir, and a second pump 25 which discharges the lubricants back to the reservoir. The propeller 4 may be of the hydraulically actuated, variable pitch fully feathering type as disclosed in Specification 854,786.
Patent GB-1103328-A (GB)
Title: Improvements in or relating to polyamides
Inventor: KIRKALDY DAVID
IPC: B60C9/00
Filed: 1965-06-28
Abstract: The invention comprises polyhexamethylene suberamide having a Vicat softening point of at least 234 DEG  C. prepared by interaction of hexamethylene diamine and suberic acid derived by oxidation of dimerized butadiene.  In one method the amine and acid may be reacted in a solvent in equimolar proportions to produce a salt which is then heated in aqueous solution in an autoclave at 210-280 DEG  C., the pressure varying from atmospheric to 250 p.s.i. Alternatively an aqueous solution of the salt containing some excess diamine may be continuously passed along a heated tube. The reaction may contain up to 1 mole per cent of a molecular weight stabilizer, e.g. acetic acid.  In Example 1 copper acetate and hexamethylene diammonium iodide are present as antioxidants. In Example 10 TiO2 is present. The products may be made into textile filaments and tyre cords.ALSO:Suberic acid, obtained by dimerization of butadiene and oxidation of the dimer is reacted with hexamethylene diamine in methanol or 3: 1 water/isopropanol mixture to prepare hexamethylene diammonium suberate.
Patent GB-651821-A (GB)
Title: Washing of composite pigments
Filed: 1948-10-21
Abstract: A composite calcium sulphate-zinc sulphide white pigment is prepared by reacting zinc sulphate and calcium hydrosulphide, calcining the product and quenching the calcined powder with water to form a slurry and adding sulphuric or other mineral acid until the slurry reacts acid to an indicating means preferably methyl orange.  Specifications 651,819 and 651,820 are referred to.
Patent GB-1046623-A (GB)
Title: Control system for a tractor
IPC: A01B63/111
Filed: 1963-04-16
Abstract: 1,046,623. Tractor power lift mechanisms. MASSEY-FERGUSON Inc. April 16, 1963 [Aug. 1, 1962], No. 27420/66. Divided out of 1,046,621. Heading A1P. The subject matter of this Application is included in Specification 1,046,621.
Patent GB-297689-A (GB)
Title: Improvements in toothed gearings
IPC: F16H55/08
Filed: 1928-09-24
Abstract: 297,689. Preis, G. Sept. 22, 1927, [Convention date]. Toothed wheels.-In order to provide that in spur gearing the point of contact passes across the width of the gears from the outer edges towards the centre, the teeth 6 are curved (Fig. 1), or angular (Fig. 2), in planes containing the gear axes, and the flanks are perpendicular to the axis of the gear. The Specification as open to inspection under Sect. 91 (3) (a) states that the tooth profile may be constant in planes radiating from the centres 17 of the curves 18, 19, Fig. 3 (Cancelled), lying along the points and roots' of the teeth. This subject-matter does not appear in the Specification as accepted.
Patent GB-789800-A (GB)
Title: Jet propelled aircraft
Inventor: HOWELL ALUN RAYMOND
IPC: B64C29/00
Filed: 1954-09-22
Abstract: 789,800. Gas turbine jet propulsion plant- MINISTER OF SUPPLY. Sept. 13, 1955 [Sept. 22, 1954], No. 27456/54. Class 110 (3). [Also in Group XXXIII] In a ducted fan gas turbine jet propulsion engine the turbine comprises a rotor 13 drivingly connected to the compressor rotor 14 and a second rotor 18 free to contra-rotate with respect to the rotor 13. The combustion gases are discharged directly on to the blades 18a of rotor 18, no fixed nozzle vanes being provided. Mounted on the tips of blades 18a is a support member 22 which carries a further row of turbine rotor blades 23 and also the rotor blades 24 of the ducted fan. The stator blades 28 of the fan may be shaped to accelerate the air stream from the ducted fan so that its velocity more nearly matches that of the stream of hot gases from the turbine. A number of engines may be mounted vertically in an aircraft nacelle provided with vanes which may be inclined forwardly to give a forward component to the jet streams, Fig. 8 (not shown). Specifications 587,528, 587,571 and 632,568 are referred to.
Patent GB-310019-A (GB)
Title: Improvements in centrifugally moulding plastic material
IPC: B28B21/34
Filed: 1928-09-25
Abstract: 310,019. Hume Pipe Co. (South Africa), Ltd. April 20, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Centrifugal machines.-In the centrifugal moulding of plastic material a shaping bar or " former " is pressed against the periphery of the partially-set spinning material to impart any desired shape to the internal surface. Figs. II and III show a former 16 carried by a slide rest 10 and introduced into the mould 14 to form the interior surface of a pipe coupling. Reference is made to a pulp of hydraulic cement and short asbestos fibre as being specially suitable for working the process.
Patent GB-333770-A (GB)
Title: Improvements relating to slicing machines
IPC: B26D1/143
Filed: 1929-09-10
Abstract: 333,770. Fitzpatrick, H. D., (Maatschappij tot Vervaardiging van Snijmachines Volgens van Berkel's Patent en van Andere Werktuigen). Sept. 10, 1929. Cutting slices in succession, - In a slicing- machine, the substance is supported on a number of slides which are mounted in open-ended slideways on a base-plate and are combined with feedmechanism adapted positively to feed the slides with the substance thereon towards the open front ends of the slideways. As shown, the base 5 is extended in the form of an open frame 6 and the movable sections 9 are slidable in semicircular grooves 8 in the base, the end sections 9<a> being slidable in dovetail guides 5<a>, 6<a> in the member 5, 6. The sections 9, 9<a> are connected by a cross-member 11 which carries a nut-segment 16 which is pressed down into engagement with the feed screw 15 by a spring 26 and is released therefrom by a pivoted cam member. The meat damp-posts 12 are carried by the sections 9<a>. The sides of the sections 9, 9<a> may be sloped downwards towards the face of the base 5, or the sections may be oonvexed whilst the base 5 has concave grooves so that the combined surface is of corrugated form. As shown, the invention is applied to a machine in which a reciprocating carriage is guided on a bar 31 and is supported by a roller 32. Any form of guide for the carriage may, however, be used, and the invention is applicable to a machine having a knife movable past a fixed support for the feed and clamp member.
Patent GB-1134406-A (GB)
Title: Improvements relating to apparatus for filling bottles or other containers
Inventor: BROADHURST LESLIE HERBERT
IPC: B67C3/26
Filed: 1965-06-29
Abstract: 1,134,406. Bottling. ALBRO FILLERS & ENG. CO. Ltd. 29 June, 1966 [29 June, 1965], No. 27509/65. Heading B8T. Apparatus for delivering measured quantities of liquid to bottles B comprises several filling heads 1 mounted for rotation in a circular path above a bottle turn-table 2. Each head 1 has a vacuum chamber 5 connected, in the form shown, to a vacuum reservoir 7 and to a liquid reservoir 9, so that when the chamber 5 is evacuated, liquid is drawn up through a pipe 8 to fill the chamber 5 and an open-topped measuring chamber 12 extending upwardly into the chamber 5, and to reach the level of the vacuum reservoir 7. At a predetermined position in the rotation of the head 1 a valve 15 is opened by a cam, reducing the degree of vacuum in the chamber 5, and causing the liquid therein, and in the vacuum reservoir 7, to flow back into the liquid reservoir 9. The measuring chamber 12, however, remains brim-full. Bottles B are fed on to the turntable 2, and beneath each head 1 a lifting cylinder 3 is provided to raise the bottle into contact with a nozzle 4, thereby pressing against a spring and causing a supply valve 13 to open. A measured quantity of liquid is then delivered, and on subsequent lowering of the bottle B the valve 13 is reclosed and the cycle is repeated. As shown the measured quantity is determined by the position of the top of a measuring tube 14 connected to the nozzle 4, relative to the upper rim of the measuring chamber 12. The length of the tube 14 may be adjustable, or the tube may be replaceable by tubes of varying lengths to vary the measured quantity. Alternatively a displacement piece (21), Fig. 3 (not shown), may be inserted within the measuring chamber (12), adjusting the total volume of the chamber (12) to the required value. In this case liquid enters the measuring chamber by an annular space between the chamber wall and the displacement piece (21), and air is displaced through a central bore (22) in the displacement piece (21), to be drawn away by the vacuum system. The vacuum reservoir may be dispensed with, in which ease a rotating valve (16) is provided, alternately connecting the chamber (5) to a vacuum source or to atmospheric pressure, as required by the filling cycle. The vacuum produced in the chamber (5) is, in this case, sufficient only to draw the liquid from the reservoir (9) up to the level of a sight-tube (20).
Patent GB-1171503-A (GB)
Title: Improvements relating to Integrated Circuits
IPC: H01L21/76
Filed: 1967-06-14
Abstract: 1,171,503. Semi-conductor integrated circuit. TEXAS INSTRUMENTS Inc. 14 June, 1967 [17 June, 1966], No. 27542/67. Heading H1K. In a process for forming components in a semi-conductor wafer, a mask having an aperture therein is formed over a surface of the wafer, a cavity is formed in the wafer with a diffused region of high impurity concentration adjacent the surface of the cavity, the cavity filled by deposition of semi-conductor material and impurities diffused into the deposited material to form a component. The wafer is either selectively etched and then impurities diffused into the cavity or high conductivity regions are diffused into the wafer and the diffused area etched to give the cavity. A silicon wafer 10 which may be mono- or polycrystalline or amorphous and having an oxide film 28 thereon, has formed therein N+-type regions 16 and 17 around the edges of cavities which are subsequently filled, 22 and 23. Regions of different conductivity type 27 and 34 are diffused into the filled cavities to give a transistor having connections 29, 30 and 31 and a resistor having connections 32 and 33. The etching and the filling processes may be performed in the same apparatus (Fig. 9, not shown) which contains SiCl 4  with a dopant and HCl together with H 2  as a carrier gas. The particular process required is obtained by regulatng the proportion of the reactants to give either letching conditions when there is an excess of HCI or filling conditions when the flow of HCl is terminated.
Patent GB-1424149-A (GB)
Title: Method of producing chlorobenzenes from benzene sulphochlorides device for regulating the thickness of the coating
IPC: C07C17/00
Filed: 1974-06-21
Abstract: 1424149 Chlorobenzenes VYSKUMNY USTAV AGROCHEMICKEJ TECHNOLOGIE 21 June 1974 [25 June 1973] 27635/74 Heading C2C A method of preparing a chlorobenzene from a benzene sulphochloride by a thermal chlorinating decomposition of an aromatic sulphochloride of general formula wherein X is hydrogen, a halogen, a C 1  to C 4  alkyl or alkoxy group and n is an integer from 1 to 5 comprises carrying out the said decomposition in the presence of a catalyst comprising a combination of active carbon and either a phosphorus halide or an azo compound able to give free radicals when degrading, wherein the active carbon and the phosphorus halide or azo compound are each employed in an amount not greater than 5% by weight relative to the initial amount of benzene sulphochloride. The reaction preferably proceeds at a temperature of from 50‹ to 250‹ C. The ratio of the two catalyst constituents may be from 0À1 : 9À9 to 9À9 : 0À1 by weight.
Patent GB-1218957-A (GB)
Title: Method of making clad metal
Inventor: SENDZIMIR TADEUSZ
IPC: B23K20/04
Filed: 1968-06-11
Abstract: 1,218,957. Making composite strip; jointing by rolling. T. SENDZIMIR. 11 June, 1968, No. 27668/68. Headings B3A and B3M. [Also in Division E1] Two clad metal strips are produced simultaneously by making a " sandwich " of a base metal strip 1a, Fig. 1, a cladding metal strip 2a slightly narrower than the base metal strip, a layer of weld-preventing compound 3, a second cladding strip 2b and a second base metal strip 1b, then the sandwich strip is heated to hot rolling temperature while at least the inside portion is protected from oxidation, then the structure is reduced in a single step by over 80% under nearly isothermal conditions, and finally cooling the strip and separating it into two clad strips by trimming its edges. The base metal is preferably iron or mild steel, the cladding metal chromium steel or stainless steel. In a preferred embodiment prior to trimming the edges the strip is hot coated with another metal which may be tin, terne, cadmium, aluminium, zinc or alloys thereof. In a further embodiment the two metal strips clad on one side may be welded together to give a strip clad on both sides. To assist the welding of the base metal strips in this embodiment the surfaces are roughened by surface-conditioning rolls, Fig. 5 (not shown). The main roll pass is preferably through a planetary mill with smaller reductions before and following the main pass. The process is carried out in a reducing atmosphere as also is the cooling of the strip, Fig. 3 (not shown).
Patent GB-335723-A (GB)
Title: Improvements in machines for grinding or polishing walls and similar surfaces
IPC: B24B7/22
Filed: 1929-09-13
Abstract: 335,723. Pichford, E. W. Sept. 13, 1929. Walls, cleaning. - A machine for grinding and polishing walls and like surfaces comprises a grinding or polishing wheel A carried by a spindle a in a housing a<1> and driven, through gearing a<3>, by a flexible shaft a<4>, the housing being movable by handles a<2>. The housing is provided with a wheel guard b<1> whereby it is secured to a slide B, movable towards and from the wall in a guide c in a carriage C, which is slidable on a horizontal bar d guided at its ends to move vertically in channel, or other, shaped pillars D, the bar &c., being counterweighted by weights W connected to the bar by cables w passing over pulleys d<2>; the carriage C may have a guide c in its under surface whereby the grinding-wheel may be situated below the bar d, or two grinding-wheels may be used at the same time. Water is supplied by a pipe f from an overhead tank F, and a trough G may be arranged to catch the water, a rubber strip being placed against the wall to direct the water into the trough; the pillars may be provided with splash guards. In a modification, Fig. 7, a single pillar is employed, which may be formed of two channel sections back to back with a counterweighted bracket D<2> slidable thereon and carrying arms d<1> upon which the carriage C is slidable. The pillar or pillars is or are supported by a base E with feet e, which may be adjustable as to length or may be arranged for using the apparatus on staircases &c. In a further modification, the apparatus is built up for transport, and has two pillars with feet and connected by a movable cross tie at the top.
Patent GB-884826-A (GB)
Title: Electric resistance elements
Inventor: CURZON THOMAS
IPC: H01C3/12
Filed: 1959-08-14
Abstract: 884,826. Grid resistors. C.A.V. Ltd. June 21, 1960 [Aug. 14, 1959], No. 27817/59. Class 37. [Also in Groups XI and XXII] A method of making an electric resistance element comprises cutting from a sheet of metal a blank of sinuous form in which the limbs of each loop are substantially parallel with one another, and then bending or rolling the limbs of the loops to form an electric resistance element of substantially cylindrical form. The blank may be rolled on to a cylindrical former which is afterwards withdrawn or on to a cylindrical former of electric insulating material and afterwards secured thereto. The free ends of the outermost limbs may extend outwardly for terminals. Certain of the limbs may be wider than others. The element is substantially non-inductive.
Patent GB-1530117-A (GB)
Title: Ladder support
IPC: E06C7/48
Filed: 1975-09-19
Abstract: 1530117 Wall bracket L WRIGHT 19 Sept 1975 [22 June 1974] 27821/74 Heading A4B [Also in division El ] A wall bracket, for supporting the upper end of a ladder placed with its longitudinal axis in a vertical plane parallel to the wall, comprises a support bar 11 projecting normally from the wall and supported at its free end by two braces 12,13 extending respectively downwards and sideways to the wall, and a stop member 14 to prevent the ladder sliding off the bracket. The support bar 11, which is of angle section, and the braces 12,13 of strip material, are connected at their free ends and to the stop member 14 by bolts 17,18, and their other ends are inserted between bricks of the wall.
Patent GB-611412-A (GB)
Title: Improvements in or relating to thermal delay switches
IPC: H05B41/06
Filed: 1945-10-23
Abstract: 611,412. Thermal switches. STANDARD TELEPHONES & CABLES, Ltd., and FOULKES, C. H. Oct. 23, 1945, No. 27899. [Class 38 (v)] When the contacts of a thermal-delay switch close, the heat transferred from a bimetal strip 1 heated by an element 3, causes the bentback extension of an element 2 to flex towards the strip 1, so as to increase the contact pressure. The bimetal extension is parallel to the strip 1 and to the stem of the element 2, and may be tapered so as to increase its deflection. The element 2 may be a rigid strip but is preferably itself bimetallic, so as to compensate for variations in ambient temperature. The strips 1, 2 are attached to a mica 6 and secured within an envelope 8 as described in Specification 587,236, [Group XL].
Patent GB-407890-A (GB)
Title: Improvements in slicing machines
IPC: B26D1/143
Filed: 1933-10-11
Abstract: 407,890. Slicing-machines. MAATSCHAPPIJ VAN BERKEL'S PATENT NAAMLOOZE VENNOOTSCHAP, 33, Boezemsingel, Rotterdam, Holland. Oct. 11, 1933, No. 28021. Convention date, Oct. 11, 1932. [Class 28 (ii).] In a slicing-machine of the type wherein the slice thickness is determined by a gauge plate, the gauge plate is displaceable from its operative position to facilitate cleaning. As shown, the meat clamp, which has a spiked front face for push-feeding when required, is vertically adjustable on uprights 20 on a feed table fed manually, or by spring means, to press the meat against the gauge plate 27. The plate 27 is fast upon a shaft 29 and is held, when in operative position, by the engagement of a pin 33 with an aperture 34. The shaft 29 has a screwed end 35 engaged by a set-screw 36 on the rotary graduated adjustment member 38. A compression spring 40 tends to move the plate 27 away from the slicing plane. When the member 38 is rotated anti-clockwise (looking to the left in Fig. 3), the plate 27 is moved away from the slicing plane until the pin 33 engages only the half-circular lug portion 49 of the aperture 34. Further rotation of the member 38 swings the plate 27 into the dotted line position in Fig. 1, the angle of movement being limited by the set-screw 42 abutting against the casing 10. The knife is driven by a motor in the base, and the gauge plate 27 is extended at 54 to form a knife guard. The slice receiving plate 52 is carried by a bracket 53.
Patent GB-1261789-A (GB)
Title: Epitaxial gallium arsenide diodes
IPC: H01L29/00
Filed: 1969-06-03
Abstract: 1,261,789. Semi-conductor devices. R.C.A. CORPORATION. 3 June, 1969 [11 Sept., 1968], No. 28049/69. Heading H1K. A GaAs varactor diode, e.g. for use in the avalanche mode, comprises an octagonally cross-sectioned p(n)-type mesa 22 epitaxially deposited on a (100) surface of an n(p)-type substrate 12/14 otherwise covered by a passivating layer, which may comprise a lower layer 16 of Si 3 N 4  and an upper layer 18 of SiO 2 . The side walls of the mesa 22 lie in 100 and 110 type planes. A metal layer 24, e.g. of Ag, is applied over the top surface of the mesa 22 and over the parts of the side walls thereof extending above the passivating layer. The substrate may comprise an epitaxial layer 14 on a highly conductive body 12. Zn may be used as the dopant in the mesa 22.
Patent GB-1298928-A (GB)
Title: Improvements in or relating to electrolytic capacitors
Inventor: STERLING HENLEY FRANK
IPC: H01G9/042
Filed: 1970-06-10
Abstract: 1298928 Electrolytic capacitors STANDARD TELEPHONES & CABLES Ltd 28 April 1971 [10 June 1970] 28091/70 Heading H1M [Also in Division C7]  An electrolytic capacitor is made by compacting and/or sintering particles of an electrically conducting material coated with a value metal, e.g. Ta or Nb, and then anodizing. The particles may be Ni, stainless steel, Ti, Si, SiC or TiO x , where x is <2.