baber/WOPTO huggingface dataset:
Patent GB-833993-A (GB)
Title: Improvements relating to electric circuits
Inventor: CALVERLEY HENRY BOLTON
IPC: B60L9/08
Filed: 1955-11-15
Abstract: 833,993. Control of D.C. motors. ENGLISH ELECTRIC CO. Ltd. Nov. 14, 1956 [Nov. 15, 1955], No. 32624/55. Class 38 (3). [Also in Group XXXV] A D.C. load such as traction motors M 1 -M 4  are supplied from an A.C. source 12 through a full-wave rectifier 16 and a transformer 10 with a tap-changing arrangement, the centre point of the D.C. load being connected at 21 to the secondary winding of the transformer. In the arrangement shown, connection 21 is made to the centre point of two reactors 19, 20, the ends of which are connected respectively through switches T 0 -T 4 , TT 0 -TT 4  to alternate tappings of two transformer secondary windings 14, 15, the outer ends of which are connected to the A.C. rectifier terminals. These switches, together with P and PP, are operated by a controller in such sequence, tabulated in Fig. 2 (not shown) that, firstly half the voltage of one tap section of winding 14 is applied to motors M 1 , M 3 , secondly half the voltage of one tap section of winding 15 is additionally applied to motors M 2 , M 4 , and then these voltages are stepped up one at a time by half that of a section, each step. In one modification, connection 21 is connected to the centre point of a single reactor connecting through switches, the inner ends of the two secondary windings 14, 15, Fig. 3 (not shown). As both halves of the load must be supplied with the same voltage, corresponding switches connected to each winding 14, 15 must be operated simultaneously, so that the number of voltage steps which may be selected is halved. In a further modification, after the full voltage steps of the arrangement of Fig. 1 have been exhausted, each connection to the A.C. rectifier terminal is transferred from the outer end of a winding 14, 15 to the inner of the other winding. A further similar number of steps is then available as the output voltages now include all that from one winding 14 or 15 and part from the other, Fig. 4 (not shown).
Patent GB-963368-A (GB)
Title: Process for the recovery of constituent diamines and diacids from nylon
Inventor: CRAIG JOHN THORBURN
IPC: C07C209/86
Filed: 1961-09-12
Abstract: Constituent diamines and diacids are recovered from nylon by hydrolysis thereof under pressure, preferably in an inert atmosphere, of at least 160 DEG C. in the presence of an aqueous solution containing at least 20% excess equivalents of alkali metal hydroxide; extraction of the diamine from the hydrolysis product with an organic solvent and recovery of the diamine and di-acid from the solvent solution and aqueous solution respectively.  It is desirable that the reaction be performed in the absence of oxygen, usually in a nitrogen-atmosphere, and with sufficient water present to prevent separation of the diacid. The hydrolysis product is cooled to below the boiling point of the solvent, which is usually employed as 0.1 to 1 part by weight per part by weight of product, and extracted continuously or discontinuously.  Suitable solvents are those forming a two phase system with the hydrolysis product and, preferably, having a boiling point remote from that of the diamine. Preferred solvents are C3 to C8 aliphatic alcohols and other solvents specified are cyclo-aliphatic alcohols. The Examples illustrate the recovery of hexamethylene diamine and adipic acid from polyhexamethylene adipamide. Specification 461,237 and U.S.A. Specification 2,130,948 are referred to.
Patent GB-336121-A (GB)
Title: Improved centrifugal mill
IPC: B02C13/22
Filed: 1929-10-28
Abstract: 336,121. Tilloy, C., (Assignee of Davezies, M. B.). March 28, 1929, [Convention date]. Impact pulverizers.-In an impact pulverizer comprising a fixed plate 3 and rotary plate 6 provided with intercalatory pins 3<1>, 6<1>, the pins are screw-threaded and formed with a shoulder and are secured to the plate by a nut which enters a recess therein. The plate 6 is mounted on a spindle 5 driven by a cast-iron cone 15 and fibre cone 13, the spindle being adjustable by a screw 12. The stationary plate 3 is supported from the casing 1 by a cylindrical ring 4 and a pin 7<1> secured by one of the pins 6<1> removes material from the inside of the ring 4. The cone 15 is adjustable by a screw 20 and oil is supplied by a lubricator 24 to the upper and lower spindle bearings, an oil ring 25 on the upper bearing throwing the oil into a ring 26 which communicates by a pipe 27 to the lower bearing. Specification 12318/11 is referred to
Patent GB-507290-A (GB)
Title: Improvements in or relating to stereoscopic cinematography
IPC: G03B35/00
Filed: 1938-11-10
Abstract: 507,290. Stereoscopic kinematography. ZEISS IKON AKT.-GES. Nov. 10, 1938, No. 32736. Convention date, Nov. 22, 1937. [Class 97 (i)] Stereoscopic pairs of images are recorded on a film running horizontally and a laterally re versed copy of this film pro jected when running vertically In this way lateral inversion of the image by an erecting device for projection, (as shown) is compensated. The laterally reversed copy may be produced by illuminating the film from the image side.
Patent GB-1216445-A (GB)
Title: Container transport
IPC: B60P3/40
Filed: 1969-06-30
Abstract: 1,216,445. Special load transporters. HEINRICH DE FRIES G.m.b.H. 30 June, 1969 [1 Feb., 1969], No. 32855/69. Heading B7B. A load such as a container is made mobile by two wheeled units each comprising a frame 3 having container engaging members 3a, 3b adjacent the ends of transverse beams held in spaced relationship by I beams 3c. Units 4 carrying road wheels 6 are provided with jacks 7a which raise the frame 3 and hence the container to the transport position. The two jacks 7a on each unit are supplied by, 9 pump alternatively, other lifting means may be provided. Vertically adjustable jockey wheels on the  frame 3 facilitate positioning of the wheeled units with respect to the container.
Patent GB-720256-A (GB)
Title: New or improved process for the production of hollow bodies by extrusion
IPC: B21C26/00
Filed: 1952-12-30
Abstract: 720,256. Extruding. KREIDLER, A. Dec. 30, 1952 [Dec. 31, 1951], No. 32923/52. Class 83 (4). In the extrusion of a hollow body from a billet 4 in which a disc 7 of larger diameter than the ram is provided on the operative face thereof and remains after extrusion as a lost disc in the hollow body, the disc is cooled during extrusion by a cooling fluid fed and discharged through the ram. The latter has radial or spiral grooves on its operative face which grooves communicate with liquid passages 9. The provision of the disc facilitates the removal of the ram from the body. The billet may initially have a shallow recess for receiving the disc. During extrusion, part of the billet is forced through the die 2 to form an extension 8 and the remainder of the billet remains as a thin shell 11. Backward extrusion may or may not take place. In other embodiments a shallow cup-shaped disc of sheet metal is placed on the end of the ram, or a flat circular disc of sheet metal, larger in diameter than the ram, is placed between the billet and the ram and is deformed by the latter to cup shape during extrusion.
Patent GB-1496916-A (GB)
Title: Method and apparatus for incremental electroprocessing of large areas
IPC: C25D5/04
Filed: 1975-08-06
Abstract: 1496916 Non-immersion electro-processing J F JUMER 6 Aug 1975 [19 Sept 1974] 32944/75 Heading C7B  The metal interior of a vertical vessel is electroprocessed (e.g. polished or plated) in increments by means of one or more chambers 12 which contact an increment 14 of the area via seals 43, and which contain electrolyte and an electrode whose surface conforms with that of the vessel. The chamber(s) are moved round the periphery, continuously or in steps, on arm(s) 26 extending from an axial shaft in the vessel, with vertical movement being effected after processing of each horizontal band. The shaft may be part of the vessel's working appurtenances and may carry an agitator; a supplementary shaft may be attached to such permanent shaft to extend it to the full axial length. Arm(s) 26 may be extensible on springs to ensure sealing action. Each chamber may have an upper/lower extension adapted to the shape of upper/lower angled walls of the vessel. Likewise the electrode may be adapted to fit round protruberances or recesses in the vessel Figs. 9 and 10 (not shown). The chambers may be made of and/or surfaced with a dielectric material. The seals may include rubber strips (45), Fig. 12 (not shown) and a secondary portion 43 of foam-filled flexible strip. The electrode may be of sheet or perforated metal; for plating a soluble anode is used. Electrolyte may overflow via holes 3 la or the top edge 31 whereby gas bubbles are entrained, and may be recirculated via a heated reservoir. Alternatively, heating may be effected via the walls of the vat. Each chamber may be entirely closed by the portion 35 with excess electrolyte returned direct via a second conduit.
Patent GB-740904-A (GB)
Title: Gas turbine power plant
Inventor: ROESCH GEORGES HENRY
IPC: F02C7/36
Filed: 1952-12-30
Abstract: 740,904. Securing turbine and compressor rotors on shafts. MINISTER OF SUPPLY, and ROVER CO., Ltd. March 9, 1954 [Dec. 30, 1952], No. 32957/52. Class 80(2) [Also in Group XXVI] A gas turbine engine has a central gear casing 1 provided with bearings 8, 17 supporting a rotor shaft 4 to the ends of which are attached an overhung turbine rotor 6 and an overhung compressor rotor 5. The abutting faces of the rotor shaft and the stub shafts of the compressor and turbine rotors are provided with interengaging serrations 29, 30 constituting driving connections, the rotors and the rotor shaft being clamped together by a tie-bolt 26. Specifications 740,905 and 743,782, [Group XXVI], are referred to.
Patent GB-1446378-A (GB)
Title: Process for producing carbon monoxide from light hydrocarbons
IPC: C01B32/40
Filed: 1974-07-25
Abstract: 1446378 Carbon monoxide from light hydrocarbons METALLGESELLSCHAFT AG 25 July 1974 [16 Aug 1973] 32997/74 Heading C1A [Also in Division C5] Co is produced from a feedstock comprising light hydrocarbons having an average number of carbon atoms in the molecule of not greater than 15, e.g. naphtha, by mixing the feedstock with 0À02 to 0À1 s.c.m. of H 2 /kg, of feedstock, subjecting the mixture to hot desulphurization in a reactor 4 and thereafter adding superheated process steam from a conduit 42 to the desulphurized mixture in the conduit 41 in a ratio of 1À1 to 1À7 moles of steam/gm. atom of carbon in the feedstock and thence introducing the mixture to a first cracking stage 5 containing a catalyst comprising 35 to 70% by weight of nickel maintained at a temperature of 300 to 500 C. and an absolute pressure of 10 to 20 kg./sg. cm. to produce a rich gas; following the first catalytic stage, the process pressure is reduced by 4 to 12 kg./sq. cm. viz. to a pressure in the range 5 to 12 kg./sq. cm. and the rich gas reacted at 850-980 C. in a second cracking stage in a tubular heater 6 in contact with a catalyst, containing 10 to 30% by weight of nickel, to produce a product gas rich in CO and H 2  which is cooled and CO 2  and water vapour removed the gaseous mixture then being fed to a system 14, e.g. a liquid methane scrubber, where it is separated at low temperature to give a CO product of greater than 99% (by volume) purity. The nickel catalyst of the first cracking stage may be supported on a magnesium silicate or spinel support and that of the second stage on an alumina support.
Patent GB-604854-A (GB)
Title: Improvements in and relating to mixing circuits such as are used in superheterodyne receivers
IPC: H03D7/08
Filed: 1945-12-06
Abstract: 604,854. Thermionic valve superheterodyne circuits. PHILIPS LAMPS, Ltd. Dec. 6, 1945; No. 33021. Convention date, Sept. 11, 1940. [Class 40 (v)] A frequency changer, particularly for short waves, comprises an oscillator to the grid of which the signal is applied and in which the intermediate frequency is taken from a resonant circuit included in the grid circuit which thus functions as a diode. The Fig. 3 shows an input signal circuit 5, 7 and a circuit 29 tuned to the intermediate frequency. The point B may be connected to a tapping on the inductance of the tuned circuit 29 to give a voltage step-up and match the impedance of this circuit to that of the circuit 5, 7.
Patent GB-1033928-A (GB)
Title: Improvements in or relating to the manufacture of polyurethanes
Inventor: FOX IAN SPENCER
IPC: C08G18/26
Filed: 1962-08-28
Abstract: A composition for use in polyurethane production consists of a mixture of lead octoate and a reaction product of an alkylene oxide with an active hydrogen-containing compound, said mixture containing from 0.5 to 5.0 parts by weight of said reaction product for each part by weight of lead octoate.  Preferred alkylene oxide reaction products are those derived from triethanolamine or triisopropanolamine with propylene oxide, block copolymers of ethylene oxide and propylene oxide and reaction products of octyl or nonyl phenol with 2-8 moles of ethylene oxide.  The composition may be mixed with a polyhydroxy compound and reacted with an organic polyisocyanate to form a cellular or homogeneous polyurethane. Polyhydroxyl compounds may be polyesters, polyethers, polyesteramides.  Conventional polyisocyanates are specified.  In Examples (1) diphenylmethane diisocyanate was added to a mixture of oxypropylated trimethylolpropane, tri(b -chloroethyl)phosphate, siloxane block copolymer, FCCl3 and equal parts of lead 2-ethylhexoate and ethoxylated octyl phenol to produce a rigid foam (3) a mixture of equal parts of lead 2-ethylhexoate and ethoxylated octyl phenol was dissolved in propoxylated glycerol and the solution continuously mixed with more propoxylated glycerol, tolylene diisocyanate, triethylene diamine, water and siloxane.  A foam resulted.ALSO:A catalytic composition comprises a mixture of lead octoate and a reaction product of an alkylene oxide with an active hydrogen-containing compound, said mixture containing from 0.5 to 5.0 parts by weight of said reaction product for each part by weight of lead octoate.  Preferred alkylene oxide reaction products are those derived from triethanolamine or triisopropanolamine with propylene oxide, block copolymers of ethylene oxide and propylene oxide and reaction products of octyl or nonyl phenol with 2-8 moles of ethylene oxide.  The composition may be mixed with a polyhydroxy compound and reacted with an organic polyisocyanate to from a cellular or homogeneous polyurethane.
Patent GB-978868-A (GB)
Title: Improvements in or relating to controlled constant current devices
Inventor: QUAYLE JOSHUA CREER
IPC: G05F1/575
Filed: 1962-08-28
Abstract: 978,868. Determining relative quantities of fluid mixture constituents. IMPERIAL CHEMICAL INDUSTRIES Ltd. Aug. 22, 1963 [Aug. 28, 1962], No. 33029/62. Heading G1N. [Also in Division G3] A cell assembly for coulometric titration comprises a vessel 21 containing a platinum anode 23, a vessel 22 containing a copper cathode 24 and a bridge 25 which joins the vessels and which includes a member 26 separated from vessel 21 by a glass sinter and having a nitrogen inlet 28, and a further member 27 separated from the member 26 by a glass sinter and from the vessel 22 by an agar plug, the member 27 containing 3% agar in 0, 5 molar sodium sulphate solution. The vessel 21 has a heater, nitrogen bubbler, pH electrode and half cell, and stirrer, and contains molar sodium sulphate solution; the vessel 22 contains molar copper sulphate solution. To carry out a standardisation, an anhydrous sodium carbonate sample is introduced into the anode vessel 21 which is swept with nitrogen, and a constant current is passed whilst the time is measured by a crystal oscillator and a pulse counter. The electrolysis is carried out to generate an excess of hydrogen ions at the anode, the carbon dioxide released is boiled off, the polarity of the cell is reversed and the end point is ascertained from the change in pH. Specification 978,867 is referred to.
Patent GB-1398326-A (GB)
Title: Intensifying screen
IPC: G21K4/00
Filed: 1972-07-14
Abstract: 1398326 Luminescent screens EASTMAN KODAK CO 14 July 1972 [16 July 1971] 33141/72 Heading C4S [Also in Divisions H5 and C3] An intensifying screen (e.g. for radiography) includes a support bearing a layer of phosphor dispersed in an elastomeric polyurethane binder, which may also include alkyl methacrylate polymer in specified proportions. Particular alkyl methacrylate and elastomeric binders and their preparations are disclosed. The elastomers may include specified water insoluble materials. Neutrons, X-rays or gamma rays may be detected, phosphor concentrations and densities are given, and the phosphor may have a host matrix of at least one heavy metal ion, may contain a rare earth activator (A. No. 57-71, e.g. La, Ce, Sm, Eu, Gd), and may be barium lead sulphate, Eu : barium strontium sulphate, zinc sulphide; ZnCdS, calcium tungstate, zinc orthosilicate, lead sulphate, lanthanide- or Pb : BaSO 4 , Pb : barium silicate, Gd: yttrium oxide, La or Pb : strontrium sulphate or mixed alkaline earth phosphors, e.g. BaSr sulphate, barium fluoride and Ba fluoride chloride. A mixture of phosphors may be used, more than half the emission may be U.V., other emission colours being specified. Certain phosphors may serve as opacifying addenda having high Á. Phosphor preparations are by reference to publications. Many details of multilayer arrangements are included. For example, specified polyesters are disclosed for the support. The screen, e.g. support or other specified layers may include a U.V: or U.V. -blue absorber, e.g. furanone derivatives and many others as specified and an overcoat layer of cellulose acetate or a polyurethane elastomer resin composition in a multilayer composition including an emulsion and described in detail. The phosphor may be directly over the photosensitive layer, on the opposite side of a support to that layer, or on both sides of a double or single coated material. A Ag-halide screen may be integral or non- integral and stripping, subbing, protective, overcoating and/or matte layers of specified compositions included. Ag halide coating compositions are detailed and may include coating aids, surfactants, spectral sensitizers and other addenda. Antihalation addenda, e.g. specified dyes, may be included in the phosphor or a separate layer or support for example. Coating processes are described and screen flexibility referred to. Detailed examples are included.
Patent GB-448228-A (GB)
Title: Improvements in and relating to clothes hangers
IPC: A47G25/28
Filed: 1935-11-29
Abstract: 448,228. Clothes hangers. WITZ, O. B., 55, Hermann-Goring-Strasse, Essen, Germany. Nov. 29, 1935, No. 33206. Convention date, Dec. 17, 1934. [Class 52 (v)] A clothes hanger comprises a rigid central portion a provided at the ends with a hollow resilient body b with a continuous peripheral surface which adapts itself to the form of the garment. As shown rubber tubes bare fitted over the ends of the wooden hanger. In a modification, tapering helical springs with a cover of woven or knitted fabric are used. The hanger may be mounted on a pedestal.
Patent GB-1059952-A (GB)
Title: Improvements in or relating to the sheathing of electric cables
Inventor: BASKWELL JOHN ALFRED
IPC: H01B13/30
Filed: 1962-09-19
Abstract: 1,059,952. Electric conductors &c. PIRELLI GENERAL CABLE WORKS Ltd. Aug. 28, 1963 [Sept. 19, 1962], No. 33234/66. Divided out of 1,059,951. Heading H1A. The entire subject matter of this Specification is contained in Specification 1,059,951 but the claims are directed to the method of manufacturing a sheathed oil-filled cable by filling the evacuated cable with oil after sheathing through one of its end plugs. The end plugs form the subject matter of Specification 1,059,953.
Patent GB-771134-A (GB)
Title: Improvements in or relating to mixing or stirring devices
Inventor: SCHNEIDER JOACHIM
IPC: B01F7/16
Filed: 1954-11-17
Abstract: 771,134. Batch mixine-apoliances. BECK, W. [trading as RHEINHUTTE VORM. L. BECK & CO.]. Nov. 17, 1954, No. 33357/54. Class 86 A rotary mixer comprises a shaft 5 which is guided within a protective tube 9, depending from a supporting flange 1, by intermediate and lower sliding bearings 13, 17 and has a mixer blade secured to its lower end adiacent the bearing 17; at its upper end the shaft extends through a stuffing-box horsing 2 locating packing 4 and a pair of ball bearings 3 and is fitted with a jaw coupling part 6 for engagement by a mating part 7 on a driving shaft 8 The mixer blade comprises a middle transverse wall 23, of elliptical shape, on the two sides of which are blade members 24, 24 and 28, 28, respectively, running in the same direction and closed by upper and lower walls 25, 29, similar to the wall 23, provided with inlet apertures 26, 30. The arrangement is such that the material to be mixed enters the blade through the apertures 26, 30, is struck by the blade members 24, 28, and re-emerges at the blade periphery through outlet slots 27, 27 and 31, 31 defined by the said blade members and transverse walls. In the construction shown the blades 28 are longer than the blades 24 so that the outlets 31 are larger than the outlets 27; as a consequence the partial mixtures will flow out of the outlets 27, 31 respectively at different rates and a third mixing is effected at said outlets.
Patent GB-874696-A (GB)
Title: Improvements in or relating to electric starter motors for internal combustion engines
IPC: H02K5/22
Filed: 1959-10-02
Abstract: 874,696. Electric motors. BOSCH G.m.b.H., ROBERT. Oct. 2, 1959 [Oct. 23, 1958], No. 33416/59. Class 35. [Also in Group XXVII] An electric starter motor for internal combustion engines comprises, an axially displaceable driving pinion 20, a motor casing formed of a yoke 10 with two end bearing covers 16, 13 and a magnetic switch 15 mounted on the casing which serves to engage the pinion and also connects the motor to a power source 32, the bearing cover 16 being pressed or spun from sheet metal into the shape of a pot, a contact 31 of the magnetic switch being electrically connected to the motor by a lead 33 which passes through a resilient insulating element 23, inserted into a slot or recess of the motor casing, forming a tight joint between the lead and the insulating element which is accommodated in slots formed in the bearing cover and the adjacent end of the yoke. As shown in Fig. 4, the insulating element has a groove 26 whose width is approximately the thickness of the metal bearing cover 16 and a slot 25 which closes and grips the lead 33 through the hole 24 when the bearing cover 16 is tightened up on the motor casing.
Patent GB-446729-A (GB)
Title: Improvements in and relating to casement windows
IPC: E06B7/26
Filed: 1935-12-03
Abstract: 446,729. Casement-window sashes and frames. AUSTIN, C. B., 302, Green Lane, Ilford, Essex, and SPENCER, T., 27, Vicarage Road, East Sheen, London. Dec. 3, 1935, No. 33425. [Class 20 (iii)] A casement window having the meeting edges of sash and frame rabbeted and inclined to provide several weatherexcluding checks b<1>, b2, c<1>, c<2> at the sides and at the lintel, transome, and sill is characterized in that all the rabbets of the frame are identical so that they can be formed in one operation and with one setting of a machine. The sash is rabbeted in the same manner. There are five contacting surfaces formed between the frame and sash, some of which are inclined.