baber/WOPTO huggingface dataset:
Patent GB-696067-A (GB)
Title: Improvements in double twist spindle devices
IPC: D01H1/10
Filed: 1950-06-06
Abstract: 696,067. Double twist spindles. SABATON, L. June 6, 1950 [June 9, 1949], No. 14079/50. Classes 120(ii) and 120(iii) A double twist spindle device arranged with its axis horizontal or at an acute angle to the horizontal and including a rotatable unwinding disc, has the said disc mounted, in combination with braking means, on a flanged sleeve which prevents axial movement of the yarn-carrying bobbin and is secured by resilient means to an extension of the bobbin carrier. As shown the device includes a rotary shaft 1 supported in bearing 2 and carrying, through ball bearings 4 and 5, a bobbin-carrying element 3 which has an eccentric weight 6 attached thereto to prevent rotation of the said bobbin carrier 3'with the shaft 1. A bobbin 7 carrying yarn mass 8 is carried in the carrier 3. A tubular member 10, co-axial with shaft 1, is fixed to the front end of carrier 3 and serves as a central inlet guide for the yarn and as a support for the unwinding disc 11 which is rotatable with respect to the member 10. The yarn f leaving the yarn mass 8 passes through a hole 12 in the disc 11, then axially through the member 10 and the hollow end 1a of shaft 1, through a transverse passage 1b, through a hole 15 in a disc 13 along the outside of yarn mass 8 to some take-up device (not shown). The peripheral face of the disc 11 prevents entanglement of the two portions of the yarn f. The disc 11 is held between two friction rings 20 on a sleeve 16 which is fixed in a removable manner, e.g. by a tubular spring 17, on the front end of member 10, the sleeve 16 being provided with a flange which engages the outer end of the bobbin 7. A yarn guiding element 24 which may be made of a mouldable plastic (nylon), glass or a ceramic material is provided at the base of the tubular portion of shaft 1 to prevent contact of the yarn with the shaft and a ring 26 is provided for the same purpose In a modification the disc 11 is given a curved or dished shape so that its peripheral portion covers the front end of bobbin 7 and up to one-half of the axial length of the bobbin may be covered in this way. A twisting frame is described which incorporates a plurality of double twist spindle devices as above arranged in a staggered formation on opposite sides of a horizontal plane. Fig. 3 shows a tool for threading " the device.
Patent GB-700387-A (GB)
Title: Improvements in and relating to hydrocyclones
IPC: B04C5/12
Filed: 1951-06-14
Abstract: 700,387. Centrifugal separators. MAATSCHAPPIJ VOOR KOLENBEWERKING STAMICARBON N. V. June 14, 1951 [June 14, 1950], No. 14084/51. Class 23 A multi-hydrocyclone for treating starch suspension comprises a cylindrical block 1 having longitudinally extending conical bores 4, cover plates 9 which are disposed in the wide ends of said bores and which may be provided with vortexfinders 10, means, such as opposed clamping plates, for securing the block and cover plates together and a common feed chamber 2 in said block communicating with supply passages 3 for feeding the material to be treated tangentially into the wide ends of said borer wherein said supply passages constitute channels in the block which are covered by the cover plates and wherein the damping plates are perforated opposite each bore for the passage of the discharge therefrom. The block and the cover plates are made of rubber and the block is provided with sealing lips 12, 13. The tangential inlets of the outer and inner bores 4 commumicate with the periphery of the block and the chamber 2 respectively. Two multi-hydroclones in series comprises a cup-shaped housing 14 which surrounds the block 1 to define an annular chamber 15a therewith and ha.s a tube 16 extending into the chamber 2. The block .1 is positioned between perforated plates 17, 19. The second multi-hydrocyclone is superimposed on the housing 14 and secured thereto, together with a cover 47, by a bolted flanged connection. The apex discharge of the two multi-hydrocylones is fed through valve controlled outlets 23, 41. The vortex-finder discharge from the first multi-hydrocyclcne is fed to the second multihydrocyclane and the vortex-finder discharge therefrom passes through a valve controlled port 48 in the cover 47. The assembly may comprise three multi-hydrocyclones in series. In a modification two multi-hydrocyclones are arranged in parallel on either side of a central inlet and the two end covers are secured together by bolts passing through flanges in the housings. The cover plates may stand proud of the block 1 to provide communication between the chambers 2, 15a in conjunction with or in place of the bores 3. Specification 607,787 is referred to.
Patent GB-886066-A (GB)
Title: Improvements in or relating to induction heating apparatus
IPC: H05B6/10
Filed: 1960-04-21
Abstract: 886,066. Induction heating. SIEMENS-SCHUCKERTWERKE A.G. April 21, 1960 [April 21, 1959], No. 14105/60. Class 39(3) In induction apparatus for heating in a protective gas atmosphere electrically conductive members, e.g. rods or tubes, the treatment space situated in the range of action of the inductor is encircled by a tubular casing having a cavity formed therein to which said protective gas is fed, the inner wall of said cavity being porous to permit the said gas to pass therethrough to the treatment space. In one embodiment, Fig. 1, for soldering a casing for nuclear reactor fuel elements a tubular workpiece 1 and a rod-shaped workpiece 2 separated by a ring of solder 15 are compressively loaded by a weight 22 and supported inside a water-cooled inductor 3 attached by clamps 6 and 7 to a casing comprising an inner porous wall 4 and an outer non-porous wall 5 forming with rings 23 an annular cavity to which protective gas is supplied through an inlet 9. The wall 4 may be conductive, e.g. of sintered metal, provided that no ferromagnetic material is employed, and eddy currents may be reduced by providing neots filled with insulating material in the surface of the wall. Alternatively the wall may be non-conductive, e.g. of ceramic. In an alternative embodiment, (Fig. 2, not shown) a single turn inductor is bedded between the upper and lower halves of a porous ceramic wall 4 and the rings 23 are extended to restrict the openings at the ends of the treatment space. In a further alternative embodiment (Fig. 3, not shown), an additional device for the supply of protective gas is mounted on top of the apparatus shown in Fig. 1 to cool workpieces in a protective gas as they leave the apparatus in the case of progressive heating. In Fig. 4 the inductor consists of a primary winding 3 separated by an insulating layer 17 from a concentrator winding 16 consisting of a water-cooled copper cylinder forming the outer wall of the cavity and having an integral radial disc. In Fig. 5 an apparatus for welding comprises an inductor which takes the place of a welding electrode and consists of a primary winding 3 and a concentrator winding 21 sealed through the walls 4 and 5 by an insulating layer 20.
Patent GB-475329-A (GB)
Title: Improvements in and relating to the charging of internal combustion engines for aircraft
IPC: F02D29/00
Filed: 1937-05-21
Abstract: 475,329. Regulating. JUNKERS FLUGZEUG - UND - MOTORENWERKE AKT.-GES. May 21, 1937, No. 14169. Convention date, May 22, 1936. [Class 7 (vi)] [Also in Group XXIX] In aircraft engines charged by a pump driven by the engine, the temperature of the charge delivered by the pump is maintained substantially constant by adjustment of the pitch of the propeller blades by means of a thermostatic device arranged in the pumpdelivering conduit. When the temperature of the charge rises too high, the pitch of the propeller blades is increased so as to reduce the speed of the engine and pump, and vice versa, The Figure shows an engine 20 driving a charging-pump 30, in the delivery pipe of which is arranged a heat-sensitive member 32 actuating, through a capsule 33, the valve 16 of a servomotor piston 11 which adjusts the pitch of the propeller blades through racks 8, 9 and pinions 6, 7.
Patent GB-273262-A (GB)
Title: Improvements in surface condensers
IPC: F28B1/02
Filed: 1927-05-26
Abstract: 273,262. Akt.-Ges. der Maschinenfabriken Escher, Wyss, et Cie. June 23, 1926, [Convention date]. Drip-interception devices.-Drip-plates 5 are so arranged between nests K of tubes as to leave converging tube-free spaces 9 for steam between the upper tubes of a nest and the drip-plate and diverging similar spaces 10 for air &c. between the drip plate and the lower tubes of an adjacent nest. Additional drip plates may be provided, gaps 8 permitting the air &c. to pass to the airpump suction 3.
Patent GB-771027-A (GB)
Title: Improvements in or relating to fluid flow regulators
IPC: G05D7/01
Filed: 1955-05-17
Abstract: 771,027. Fluid-actuated valves. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. May 17, 1955 [May 20, 1954], No. 14186/55. Class 135. A flow regulating valve for use in drinking fountains &c. comprises an outlet nozzle 14 connecting the valve body 11 to the fountain and a tubular inlet nipple 22 closed at its inner end. Radial ports 23 in the nipple which open into an annular recess 24 co-operate with radial ports 28 in a spring-loaded valve sleeve 27 formed with an enlarged head 29. Clearance between the head and the body bore permits flow to the nozzle 14 and water pressure acting on the undersurface of the head urges the sleeve towards closure against its spring to regulate the flow. A perforated disc 36 having a screwdriver slot is screwed into the body bore and may be adjusted from outside the nozzle to adjust the spring loading.
Patent GB-643465-A (GB)
Title: Improvements relating to loudspeakers
Inventor: HASSAN THOMAS FREDERICK
IPC: H04R9/02
Filed: 1947-05-28
Abstract: 643,465. Magnets. ACOUSTIC PRODUCTS, Ltd. May 28, 1947, No. 14240. [Class 35] [Also in Group XXXIX] The annular magnetic gap for the speech coil 17 of a loud-speaker (see Group XXXIX) is formed by inner and outer polepieces 5, 6 which are held in concentric relationship by a non- magnetic channelled ring 11. The channelled ring has flanges 9, 10 which engage recesses 7, 8 in the polepieces and are secured thereto by swaging or staking. A central pole 19 has its shouldered ends 20, 21 secured by swaging to the inner polepiece and to a back plate 18 and clamps a shell 22 against the outer polepiece, the shell being permanently magnetized after assembly. Alternatively a permanently magnetized central pole may be used in association with a soft iron shell. For electromagnetic systems the energizing winding is fitted on the central pole and the shell and back plate replaced by an integral soft iron unit.
Patent GB-270508-A (GB)
Title: Improvements in the construction of dynamo electric machinery
IPC: H02K1/18
Filed: 1926-06-07
Abstract: 270,508. Harland Engineering Co., Ltd., and Murdoch, A. S. June 7, 1926. Cores and carcass structures.-The stator of a dynamo-electric machine is formed of rectangular laminations A with rounded corners in a cylindrical casing C. The stator is built upon a mandrel, secured by bolt H, wound, and impregnated outside the casing into which it is then inserted. A key D secured to the casing by screws E, F engages with a key-way G on the laminations. The screw E is formed with a head serving as a stop to retain the laminations in position for the screw F to engage a hole in them.
Patent GB-1416625-A (GB)
Title: Film laminates
IPC: B32B27/00
Filed: 1973-03-26
Abstract: 1416625 Polystyrene film laminates MONSANTO Ltd 19 Feb 1974 [26 March 1973] 14339/73 Headings B5B and B5N [Also in Division B2] A biaxially oriented polystyrene film, e.g. of molecular weight 70,000 to 100,000, is laminated to a copolymer of an olefin, e.g. ethylene, and an unsaturated ester, e.g. vinyl acetate, derived from an unsaturated alcohol and a saturated acid or vice versa. The copolymer may comprise 2 to 30% by weight, of the ester component. The copolymer may contain units derived from partial hydrolysis of the ester component. The film may be 15 to 100 Á thick and may bear printed matter. The copolymer component may comprise at least one additive which is an anti-static, anti-block, anti-fog or slip additive, a U.V. or oxidation stabilizer, a filter or a colouring material. The film may be prepared by adhesive lamination or by extrusion coating of a biaxially oriented polystyrene film which has optionally been subjected to electrical discharge treatment before coating.
Patent GB-390016-A (GB)
Title: Method of and device for manufacturing pile fabrics
IPC: D03D39/00
Filed: 1932-05-20
Abstract: 390,016. Weaving pile fabrics. SCHOELLER, GEB., Duren, Rhineland, Germany. May 20, 1932, No. 14384. Convention date, May 23, 1931. [Classes 142 (i), 142 (iii), and 142 (iv).] Pile fabrics with a replike pile and similar to Axminster carpets are woven with face or back wefts of different characters, or as shown in Fig. 1c, face wefts e, f and also back wefts g, h of different characters may be used, the wefts e, g being thin and hard, whilst the wefts f, h are thick and soft. Various weaves are described. Loom change-box motions ; beat-up motions ; positioning pickers.-The wefts are inserted by shuttle-boxes 11, 12, Fig. 2, slidable in guides on the lay 10 which is actuated by crank meehanism 10a. The boxes are actuated by lever mechanism 13, 14 controlled by levers 15, 16 and a cam 19, which is varied according to the weave. The levers 15, 16 are respectively controlled by a spring 17, and a weaker spring 18. The lever 15 acts on a pin 141 on the lever 14. In the position shown, the box 11 is in position opposite to the picker when the lay is back and the pick occurs, the lever 15 having moved the boxes to the right into contact with a stop 10<1> by acting on a pin 141. As the lay advances the lever mechanism 13.. 16 is drawn to the left thereby. If a change of boxes is to occur on the following pick, the cam 19<1> engages a pin 15<1> on the lever 15, thereby holding this in a position to the left of that shown against the action of the spring 17, as the lay returns, so that when this is back the spring 18 can actuate the lever mechanism 16, 14, 13 and move the boxes 11, 12 to the left into contact with a stop 10<11> to enable a pick to be made from the box 12. As the lay advances, the boxes move to the right thereon and do not interfere with the mechanism 20 for operating the wires. The Specification as open to inspection under Sect. 91 describes a device for " locking the slay " in case a shuttle does not enter the shuttle box which is in working position. The shuttles act on swells which act directly or indirectly on feeler levers 27, 28, Fig. 4 (Cancelled), acting on levers 23, 24. These are fixed on the pivot 21 of a locking latch cooperating with a yielding bulkhead 22. The picker is positioned by a spring-controlled lever 31, Fig. 6 (Cancelled), co-operating with a cam-rail 32. This subject-matter does not appear in the Specification as accepted.
Patent GB-438427-A (GB)
Title: Process for the production of benzidine and its homologues and derivatives from azo derivatives or azoxy derivatives
IPC: C07C209/54
Filed: 1934-05-12
Abstract: Benzidine and its homologues and derivatives are obtained from the corresponding azo or azoxy derivatives by suspending these in acids, in presence of hydrogen iodide, and with small quantities of quinoid compounds or p-disubstitution-products of the benzene or naphthalene series or their sulphonic or carboxylic acids, and treating with about the theoretical quantity of sulphurous acid. Small quantities of tin compounds must, in the case of azoxy derivatives, be added to promote the reaction, and may be employed with the azo compounds. According to examples: (1) azobenzene is reduced with sulphurous acid in a mixture of hydrochlorica and sulphuric acid in presence of potassium iodide, and p-nitrosophenol or p-phenylene diamine; hydrochloric acid only, may be used as solvent; the benzidine is precipitated as sulphate or hydrochloride; (2) azo-orthotoluene may be similarly reduced; (3) o-azoxyanisol is reduced with sulphurous acid in hydrochloric acid, in presence of potassium iodide, nitrosophenol, and ammonium stannic chloride, to give a mixture of anisidine and dianisidine salts.  The addition of hydrocarbons also promotes the reaction.  The Provisional Specification states that ammonium stannic chloride may also be added in the reduction of azobenzene in presence of nitrosophenol or p-phenylenediamine.
Patent GB-1482069-A (GB)
Title: Imidazolones as stabilisers for organic material
IPC: C08K5/00
Filed: 1976-04-09
Abstract: 1482069 N,N - Bis - (4 - hydroxyphenylalkanoyloxyalkyl)imidazolones CIBA-GEIGY AG 9 April 1976 [10 April 1975] 14498/76 Heading C2C [Also in Division C3] The invention comprises compounds (I), where A is 1,2-cycloalkylene, 1,2-cycloalkenylene or 1,2-arylene; R 1  and R 2  are alkyl; R 3 , <SP>R</SP> 4  and R 5  are hydrogen or alkyl ; and n is 0, 1 or 2, and their preparation by reacting an acid (II) or an anhydride, ester or halide thereof with an alcohol (III). The compounds are useful as stabilizers for organic compounds, especially polymers, e.g. polypropylene (see Division C3).
Patent GB-674481-A (GB)
Title: Four-stage change-speed gear-box
IPC: F16H3/08
Filed: 1950-06-09
Abstract: 674,481. Change-speed gearing. MEYNOL, L. June 9, 1950 [June 15, 1949], No. 14499/50. Class 80 (ii). A four-speed cycle-hub gear comprises a pair of pawls 16 and 17 pivoted in the hub 11 and cooperating with pairs of ratchet-toothed rings 13, 14 and 12, 15 respectively. The rings are journalled in the hub, which is mounted on a fixed spindle 36, and are rotated at different speeds from a sprocket wheel 6, which is secured to a member 5 mounted on an eccentric sleeve 35 secured to the spindle 36, through toothed rings 1, 2, 3, 4 secured to the member 5 and meshing with teeth 7, 8, 9 10 on the ratchet, rings 12, 13, 14, 15. The pawls 16, 17 are controlled through bell-crank levers 20, 21 by a. spring-loaded sleeve 22 movable on the spindle 36 under the control of Bowden mechanism, the pawl 16 having an opening engaged loosely by a. pin 25a on a link 25 connected to the lever 20, while the pawl 17 has an opening engaged. loosely by the end 21b of the lever 21. Springs 26, 27 urge the pawls 16, 17 in either direction away from their mid-positions. With the sleeve 22. in its extreme left-hand position, as shown, the pawls 16, 17 engage the teeth 14, 12, the ring 14 driving the hub 11 in second speed through the pawl 16 with the pawl 17'over-running. By moving the sleeve 22 one stage to the right, pawl 16 is held clear and first-speed drive is transmitted through pawl 17 by the ring 12. In the next, third-speed position of the sleeve, pawl 16 engages the teeth 13 while pawl 17 is held clear, and in the extreme right-hand position of the sleeve, the pawls 16, 17 engage the teeth 13, 15, the ring 15 driving in fourth-speed through pawl 17 while the pawl 16 over-runs. A packing ring 30 provides a seal between the hub 11 and the member 5.
Patent GB-492065-A (GB)
Title: Improvements in method and apparatus for television scanning
IPC: H04N1/48
Filed: 1937-05-25
Abstract: 492,065. Television. CLOTHIER, S. L., and HOGENCAMP, H. C. May 25, 1937, No. 14542. Convention date, May 28, 1936. [Class 40 (iii)] A single concentrated beam of light B is incident on, or reflected by, a plurality of identical mirrors 14 on a line-scanning disc D to form, or be formed by, a plurality of separate beams Br, By, Bb, and thus produce coincidental scanning of each element of the entire object 11 or image. Frame-scanning is produced by moving the film 11 vertically through the horizontal beam of light B, and the respective separated beams excite separate photo-electric cell Pr, Py, Pb. The separate beams form identical images of the object in the planes of respective apertured plates Ir, Iy, Ib. A colour filter Fr, Fy, Fb is placed in front of each cell to exclude rays of predetermined colours, and the cells are specially sensitive to the colour passed by the associated filter. At the receiver, modulated beams of light from a plurality of sources pass through apertured plates and filters to fall on a scanning drum, which combines the light in a single beam, Fig. 4 (not shown). The frame-scanning is performed by an oscillating mirror. Specification 485,622 is referred to.
Patent GB-311767-A (GB)
Title: Improvements in and relating to traffic signs
IPC: E01F9/04
Filed: 1929-05-10
Abstract: 311,767. Rand, W. M. May 10, 1929. [A Specification was laid open to inspection under Sect. 91 of the Acts, May 17, 1929]. Surface markings.-Relates to traffic signs having a normally up-standing member adapted to be depressed and run over by vehicle wheels, and consists in a flexible flap 10 having legs 13, 14, secured by screws to the roadway. The device may rest on a metallic base-plate 18 or be moulded with an integral base.
Patent GB-1055726-A (GB)
Title: Basic ethers of 3,4-diarylcoumarins
IPC: C07D407/04
Filed: 1964-04-09
Abstract: The invention comprises compounds of formula <FORM:1055726/C2/1> where R1, R2 and R3 each represents C1- 8 alkyl, C2- 8 alkenyl, CF3, C1- 8 alkoxy, C2- 8 alkenyloxy, C1- 8 alkylenedioxy, halogen, C1- 8 alkylmercapto or <FORM:1055726/C2/2> where A is C2- 6 alkylene, R4 and R5 each represents C1- 8 alkyl or together with the N1 atom complete a 5- to 7-membered saturated heterocyclic ring which may contain a further N or O atom, and x, y and z are each integers from 0 to 4, at least one of R1, R2 and R3 being <FORM:1055726/C2/3> and pharmacologically acceptable acid addition and quaternary ammonium salts.  They are prepared by reacting corresponding compounds in which <FORM:1055726/C2/4> is replaced by OH with <FORM:1055726/C2/5> in the presence of an inert solvent and a base, and forming salts as desired.  7 - Acetoxy - 3,4 - diphenylcoumarin, 3-(pmethyloxyphenyl) - 4 - (p - acetoxyphenyl) coumarin, 3 - phenyl - 4 - (p - acetoxyphenyl) coumarin and 7 - acetoxy - 3 - (p - methoxyphenyl) -4-phenyl-coumarin are prepared by reacting an appropriate dihydroxy- or diacetoxy-benzophenone with sodium phenyl acetate or an appropriately substituted derivative in the presence of acetic anhydride, and then hydrolysed to give 3,4-diphenyl-7-hydroxy-, 3-(p-methoxyphenyl) - 4 - (p - hydroxyphenyl)-, 3-phenyl - 4 - (p - hydroxyphenyl)- and 3 - (p - methoxyphenyl) - 4 - phenyl - 7 - hydroxy - coumarin respectively.  The compounds of the above formula may be administered orally or parenterally as tablets, powders, capsules, solutions or suspensions as anti-infertility agents, anti-oestrogenic agents, gonadotrophin-inhibiting agents, agents for lowering blood lipid and cholesterol levels, and as anti-inflammatory agents.
Patent GB-473442-A (GB)
Title: Improvements in and relating to liquid insulating materials
IPC: H01B3/18
Filed: 1936-05-25
Abstract: Chlorinated benzyl cyanide is prepared by reacting chlorinated benzyl chloride isomers with ethyl alcohol, potassium cyanide and water.
Patent GB-602604-A (GB)
Title: Improvements in or relating to perpetual calendars
IPC: G09D3/04
Filed: 1945-06-12
Abstract: 602,604. Calendars. AUSTIN, P. C. June 12, 1945, No. 14806. [Class 106 (iv)] A perpetual monthly calendar comprises a set of seven plaques 12 to 18, bearing ten series of date figures, held separately in guide means 19 in a holder 10, inscribed with the days of the week and arranged to display all the days of one month. The plaques may be of thin resilient material and may be bowed to slide in the guide ways 19, being held by friction ; they may fit easily and be held against overhanging edges of the guideways by spring means or the edges of the plaques may be grooved to engage the said edges. The plaques may have studs to co-operate with key-way slots 21. The plaques may be held magnetically, shallow ridges 25 assisting alignment. Additional means for indicating the month and date may be provided and may be held mechanically or magnetically as at 32, 33. Plaques not in use may be stored behind the holder 10. Magnetic means may be provided to hold a frame or arrow to indicate a particular date.