baber/WOPTO huggingface dataset:
Patent GB-898966-A (GB)
Title: Insulation of winding wire and method of producing the same
IPC: H01B3/08
Filed: 1959-11-06
Abstract: 898,966. Impregnating for electrical insulation. LOHER & SOHNE G.m.b.H. Nov. 6, 1959 [Nov. 8, 1958 ; April 13, 1959], No. 37678/59. Class 140. [Also in Groups XXXV and XXXVI] Winding wire, particularly suitable for electric machines, e.g. generators, is insulated with a covering of glass fibre material which is impregnated and bonded with an insulating resin having an organic or silicon organic base such as to impart thermoplasticity to the impregnated layers, this being directly covered with a film or foil having an isophthalic acid or terephthalic acid polyester base. The thickness of the film or foil which may be applied either helically or longitudinally is preferably not more than 20 microns. The impregnating and bonding material may be a silicone or a mixture of silicones and may be a combination of resin polymers and elastomers, and the desired thermoplasticity may be obtained by the use of at least 20% of a methyl or methyl-phenyl silicone resin solution. The wire 3 may be passed through a bath 5 of an adhesive compatible with the impregnant (e.g. one containing the aforesaid solution) and then through a spinning can 8 which applies the glass fibre material. It then passes through an impregnating vessel 11 which is provided with a seal and' scraper and thence through a spinning disc 18 carrying the foil. The insulated wire passes over pulleys 19 and 21 on to a take-up reel 22 and is stored in this state, being dried and heated after insertion into the machine for which it is intended. The impregnating vessel (Fig. 2, not shown) consists of a vertical tube with a rubber-like seal at the lower end, the upper end extending part way into a horizontal drum containing the impregnant. The upper side of the drum has a filling hole, and an outlet for the wire provided with a scraper to remove excess liquid.
Patent GB-938986-A (GB)
Title: Plates for temporarily closing bolt holes
Inventor: CADMAN KENNETH JOHN
IPC: F16B2/20
Filed: 1959-11-07
Abstract: 938,986. Covers for bolt-holes. RAPID METAL DEVELOPMENTS Ltd. Feb. 7, 1961 [Nov. 7, 1959], No. 37813/59. Class 89 (1). Bolt-holes 5 (in an upright 4 of metal shuttering) which are not used for locating tie-bolts, are each closed, to prevent protrusion of the poured concrete, by a plate 6 with projecting tongues 7 passed through the hole 5 and bent on to the surface around the hole. The width of the tongues 7 and the length of a bridge 8 (joining them and welded to the dished plate 6) are such that the edges of the tongues contact the hole periphery and centralize the plate.
Patent GB-1235986-A (GB)
Title: Ram drive with adjustable stroke
IPC: F16H21/20
Filed: 1969-07-28
Abstract: 1,235,986. Gear-cutting machines. HERMANN PFAUTER. 28 July, 1969 [27 July, 1968], No. 37831/69. Heading B3L. [Also in Division F2] An adjustable stroke reciprocating drive for a gear shaper comprises two eccentrics 11, 12 driven from a common motor 3 via spur gears 6, 7, 8 and having an adjustanle phase relation, the reciprocating output member 1 being connected to the eccentrics by a link 14, pivoted to one end of a lever 13 rocking about the eccentric 11, the other end of lever 13 being pivoted to a crank 15 of the eccentric 12. Phase adjustment of the eccentrics may be by changing the mesh of the gears 6, 7, 8, which may be provided with calibration marks to facilitate this. The lever arms of the lever 13 may also be varied. The member 1 carries a cutter 2.
Patent GB-795052-A (GB)
Title: Modifying the properties of the surface of silica aerogels
IPC: C01B33/46
Filed: 1954-08-16
Abstract: An adduct of silica aerogel with an organic isocyanate may be obtained by direct reaction of the constituents by any of the methods described in the parent Specification.  As in the parent Specification the aerogel may be dried azeotropically before forming the adduct, and any of the isocyanates referred to in said Specification are also suitable for use with silica aerogel. Specification 756,966, [Group III], is referred to.ALSO:An adduct of silica aerogel with an organic isocyanate may be obtained by direct reaction of the constituents by any of the methods described in the parent Specification.  Suitable aerogels may be prepared by replacing the water in a hydrogel prepared from sodium silicate and an acid, with a water-soluble organic solvent and heating under pressure or by heating a hydrogel at a pressure greater than the critical pressure. As in the parent Specification the aerogel may be dried azeotropically before forming the adduct, and the isocyanates referred to in said Specification are also suitable for use with silica aerogel. Specification 756,966 also is referred to.ALSO:An adduct of silica aerogel and an organic isocyanate is suitable as a filler or reinforcing agent in natural rubber.  As in the parent Specification, the adduct may be ball-milled and then blended with rubber in a mill, but preferably is mixed with rubber latex and subsequently co-precipitated therewith. Specification 756,966 is referred to.
Patent GB-1477863-A (GB)
Title: Rotary drum machine with a guard
IPC: B04B7/06
Filed: 1974-09-02
Abstract: 1477863 Safety cover for centrifuges PELGRIM BV 2 Sept 1974 [2 Aug 1974] 38236/ 74 Heading B2P [Also in Division F2] In a centrifuge comprising a housing enclosing a rotatable drum (not shown) and surmounted by an annular hood 1 having a generally inverted U shaped cross-section provided with a central opening 7 which is closed by a hinged lid 4, latch means serving to guard against undesired opening of the lid during rotation of the rotor above a predetermined speed comprises a hook-shaped projection 8 at the periphery of the lid arranged to pass, when the lid is closed, through an opening 9 in the hood and into the annular trough defined by the U shaped cross-section of the hood to cooperate with an opening 11 in a vane 10 pivotably disposed in the trough in such a manner that the airflow produced by rotation of the rotor in the drum above the predetermined speed exerts a force on the vane sufficient to keep it in latching engagement with the projection 8. The vane 10 is integral with a shaft 16 which is rotatably supported in bearing indentations 15 in a plate 12 having studs 13 mounted in bearings in brackets 14 formed in the inner surface of the upper wall of the hood 1. The vane is of such size and shape that it substantially fills the cross-sectional area of the U-shaped trough.
Patent GB-1011207-A (GB)
Title: Improvements in or relating to apparatus for separating solid particles of differentsizes
IPC: B03B5/62
Filed: 1963-09-27
Abstract: 1,011,207. Pneumatic separators. COLLECTION Ltd., and D. SUMMERS. Sept. 25, 1964 [Sept. 27, 1963], No. 38257/63. Heading B2H. An apparatus for separating particulate solid material according to size or density comprises a substantially vertical duct 10, Fig. 1, or 45, Fig. 2, opening at its top end into a transverse duct 11 or 46, a feed tube 24 or 61 through which the material is fed downwardly into the duct 10 or 45 and extending downwardly through the duct 11 or 46 to a position below the top of the duct 10 or 45, means for producing an upwardly flowing current of air at a predetermined velocity in the duct 10 or 45 so as to carry upwardly the smaller or lighter particles, means for producing another current of air in the duct 11 or 46 in order to convey the smaller and lighter particles along that duct, and means at the bottom of the duct 10 or 45 for collecting the larger or heavier particles. In Fig. 1, the material to be separated is fed from a hopper 26 via a screw conveyer 27 into the feed tube 24, agglomerations in the material being broken by apertured discs 28, 29 which rotate in opposite direction to each other in the tube 24. Air is fed to the ducts 10, 11 by means of a blower &c. 18. A flap 23 regulates the air flow in the duct 11 and in a transverse duct 13 leading to the duct 10. The air passing from the duct 13 is distributed evenly in the duct 10 by means of vertically overlapping rings 15. The heavier or larger particles are collected in a bag 17 while the lighter or smaller particles are conveyed to a cyclone 19 where the air is exhausted at 22 and the particles are collected in a bag 21 or are discharged through a valve. In Fig. 2, the feed tube 61 is rotatably mounted in the duct 45 and terminates in a fish-tail spreader portion 62 opening above a guiding grid 68. A sleeve 67 serves to adjust the air gap between the tube 61 and the hopper 66 so as to adjust the rate of flow of air drawn into the tube and hence to vary the speed of fall of the feed material. The two air currents are produced by air sucked through the apparatus by a fan 58 via ducts 46 and 48 provided with butterfly valves 53, 54 which are coupled by a link 55 for simultaneous operation. The heavier or larger particles are discharged through a valve 52. The feed arrangement of Fig. 1 can be used in the apparatus of Fig. 2 and vice versa. The apparatus may be used for treating tea so as to separate dust and very small leaf particles from the leaf fragments of more normal size.
Patent GB-327156-A (GB)
Title: Improvements in or relating to fluid heaters
IPC: F28D9/00
Filed: 1928-12-28
Abstract: 327,156. Howden &. Co., Ltd., J., and Hume, J. H. Dec. 28, 1928. Heating gases. - A heat exchanger comprises united pairs of corrugated plates 1, Figs. 2, 2<a>, and 4, the opposed edges 2, 3 of each plate extending transversely of the corrugations being offset, the plates of each element being welded along' the ridges of their corrugations, and adjacent elements being connected together along the offset edges. The gap formed by the offset parts on assembling the plates are closed by welded pieces 8, 9. The heat exchange units A, B, Fig. 9, are interposed in series between the smoke-box 16 and the uptake 17 of a marine boiler 17', the passage of the air to be heated and of the flue gases being controlled by valves. The plates of an element may be corrugated lengthwise along waved lines. Specification 295,106 is referred to in the Provisional Specification.
Patent GB-1091920-A (GB)
Title: Measurement of resistance of electro-chemical cells
IPC: G01R27/02
Filed: 1965-09-08
Abstract: 1,091,920. Automatic control systems. L.H. WOLGAST. Sept. 8, 1965 [Sept. 25, 1964], No. 38285/65. Heading G3R. [Also in Division G1] The resistance of electrolytic cells; e. g. alumina-reduction cells, is measured using a Hall multiplier cell. A number of cells 11, 11<SP>1</SP>.. 11<SP>n</SP>, Fig. 1, are connected in series to a source 12 of D. C. power. A current meter 18, e. g. a calibrated shunt or magnetic amplifier, supplies a signal, proportional to the current I flowing through the cells, to a function generator 20 which supplies an output signal, proportional to 1/I, to the input terminals of the Hall multipliers 26, connected across each cell. The potential E across the cell, e.g. cell 11<SP>n</SP>, is transmitted to a second pair of Hall cell terminals 30 by conductors 24, one of which is connected to a voltage subtraction circuit 23 by which the voltage across the terminals 30 is reduced by an amount equal to E k , obtained from the characteristic currentvoltage curve of the cell, Fig. 2 (not shown), the voltage E-E k  applied across the terminals 30 of the Hall cell, is therefore that produced only by the constant resistance of the electrical connections, anode and cathode and the variable resistance of the electrolytic bath. This voltage produces a flux in a magnetic circuit 27 which is also proportional to E-E k , which flux is then applied across the Hall cell crystal 28, across which a current, proportional to 1/I' is also applied in a perpendicular direction. Thus the output voltage measured on a meter 25 is proportional to E-E k /I.As this quantity is also directly proportional to the required resistance, the meter may be calibrated directly to read resistance. The meter may have a variable zero setting so that the variable resistance of the electrolyte only is read directly. The outputs from the multipliers may be supplied to a suitable computer for the automatic adjustment of the distances of the anodes 16, mounted on jacks 17, from the cathodes 15 to keep the resistances of the electrolytes in the cells constant.
Patent GB-932245-A (GB)
Title: Purification of terephthalic acid
IPC: C07C51/487
Filed: 1959-11-11
Abstract: Crude terephthalic acid, prepared by the airoxidation of p-dialkylbenzenes, is purified by a multi-stage process comprising (a) dissolving the crude terephthalic acid in sulphuric acid, at a temperature in the range of 150 DEG -300 DEG C., and then cooling the solution until approximately 80% of the terephthalic acid is precipitated, (b) separating the precipitated terephthalic acid, dissolving it in aqueous ammonium hydroxide, and decolourizing the solution by treatment with activated carbon, and finally (c) reprecipitating the terephthalic acid by adding the decolourized solution of the ammonium salt to an aqueous solution of an acid having an ionization-constant greater than that of terephthalic acid. The purified terephthalic acid is separated, washed with hot water and dried.  In the examples, dilute sulphuric acid, hydrochloric acid, acetic acid, and sulphurous acid are used for the reprecipitation of the terephthalic acid.  The purified acid may be reacted directly with ethylene glycol to produce linear polyesters. Specifications 932,244 and 932,246 are referred to.
Patent GB-1502140-A (GB)
Title: Multiple-circuit brake installation for vehicles
IPC: B60T13/565
Filed: 1975-09-18
Abstract: 1502140 Servo-assisted brakes DAIMLERBENZ AG 18 Sept 1975 [24 Oct 1974] 38419/75 Heading F2F In the absence of servo pressure in a multiple circuit braking system a servo-operated valve 43 (Fig. 1) or 58 (Fig. 2) is effective to open a bypass passage 48 to or to close communication between one master cylinder chamber 32 and its associated circuit 11 to reduce the pressure necessary to actuate the brakes manually. The system further comprises two fluid pressure generating pistons 30, 22 of different effective area, with a mutual hydraulic driving interconnection and with means 37/38 to limit relative displacement disposed in the master cylinder 14 and associated with respective brake circuits 11, 13. In Fig. 1 in the absence of vacuum servo pressure in a chamber 54 of a servo device 51 a ball 46 is lifted from its seat allowing pressure fluid from the master cylinder chamber 32 to escape to a reservoir 35 through a passage 33 and chambers 47, 49 of the valve 43 and through line 48, the brakes 12 only being pressurized from the chamber 23. In Fig. 2, normally the spool 76 of the valve 58 is maintained as shown connecting the master cylinder chamber 32 with the brake circuit 11 through ports 72 and 74 and the passage 77 leading to chamber 67 of device 57, integral with the master cylinder housing, is closed. In the absence of servo pressure the spool 76 is displaced to the left, connecting the chamber 32 to the reservoir through ports 72 and 75 and passage 48 and the circuit 11 through the port 74, passages 77 and 70 with the chamber 67 which is pressurized when the pedal is depressed thus displacing the piston 22 and pressurizing the chamber 23 and circuit 13 and through passage 64 a chamber 65 of the device 57 resulting in displacement of the piston 61 and pressurizing of the chamber 67 and hence the circuit 11.
Patent GB-1478324-A (GB)
Title: Piperidinopropionphenone derivative
IPC: C07C45/71
Filed: 1974-09-03
Abstract: 1478324 2 - Allyloxy - 4 - chlorophenyl/2- piperidinoethyl ketone; 2-allyloxy-4-chloroacetophenone KYOWA HAKKO KOGYO CO Ltd 3 Sept 1974 [4 Sept 1973] 38460/74 Heading C2C The invention comprises the title compounds, the pharmaceutically acceptable acid addition salts of the piperidino compound (I) and a process for converting the acetophenone (II) to (I) by reacting it with CH 2 O and piperidine. In examples, (II) is prepared by (a) allylating 2- hydroxy - 4 - chloroacetophenone, or (b) making diethyl 2 - allyloxy - 4 - chlorobenzoylmalonate, which is then hydrolysed and decarboxylated. Therapeutic compositions comprise the above piperidino compound (I) which has antitussive activity and is said to act both centrally and peripherally. Laboratory tests are described in which I is administered orally or parenterally.
Patent GB-335837-A (GB)
Title: Improvements in and relating to gloves, mittens and like hand coverings
IPC: A41D13/08
Filed: 1929-12-16
Abstract: 335,837. Dampney, S. F., and Kentish, K. M. Dec. 16, 1929. Gloves and mittens.-A glove or mitten of the kind formed as a simple bag b with a slit c in the front allowing the hand to be exposed and the bag to be folded back over the wrist, is provided with an additional inner flap c which covers the back of the hand and carries finger and thumb loops e<1>. The flap is connected to, or formed in one with, the wrist portion a, to which the bag portion is secured along a line f.
Patent GB-821157-A (GB)
Title: Improvements in or relating to the manufacture of jewellery
IPC: A44C17/00
Filed: 1956-12-18
Abstract: 821,157. Jewellery. SIGAAR, J. Dec. 18, 1956 [Dec. 21, 1955], No.38602/56. Class 43 An article of jewellery has a composite stone comprising a central stone 1 with abutting stones 2, 3, 4 retained by the claws 10 of a setting 8 engaging the outermost edge. Inclined faces 2<SP>1</SP>, 3<SP>1</SP>, 4<SP>1</SP>, of the stones 2, 3, 4 bear on a bevel 6 at the edge of the table of the central stone. Inclined faces 2<SP>2</SP>, 3<SP>2</SP> bear on bevels 9 on the corner stones 4. The shape of the under surfaces of the stones 1, 2, 3, 4 is a pyramid or a frusto-pyramid.
Patent GB-1486791-A (GB)
Title: Telephone control systems
IPC: H04M11/00
Filed: 1974-09-04
Abstract: 1486791 Telephone systems LETOT Inc 4 Sept 1974 [7 Sept 1973] 38605/74 Heading H4K For use in a hotel or like telephone system in which extension telephones are connected to corresponding calling units which under control of manually operable means (e.g. the cradle switch) connect the associated extension to the main telephone (when off-hook) or to an alerting and audio message centre, a message centre arrangement comprising first and second actuator means arranged respectively to selectively connect a corresponding first or second calling signal generator and associated message reproducing device to every calling unit, and actuator means individual to each calling unit and each arranged to disconnect when operated that extension if not in use from the main telephone and to connect it to receive the selected calling signal and when the extension telephone receiver is lifted, to receive an announcement. As described the message centre can transmit an early morning call, information concerning meetings &c., a statement that a message is available at the reception desk or alarm information concerning action to be taken due to the occurrence of a fire. For each of these one of two ringing signals i.e. a normal ringing signal or a subdued occasional ringing signal and an appropriate recorded message are coupled to respective wires of a pair leading to all calling units, selection being effected by relays controlled by buttons with indicator lamps. The selected ringing and message may subsequently be conveyed to any selected extension by pressing corresponding buttons which cause the corresponding calling units to connect the ringing signal wire to the extension and to light a red lamp. When the extension telephone is lifted a relay in the calling unit responds to disconnect the ring- ing signal, to connect the message wire to the extension and to light a green lamp. When the receiver is replaced the red lamp is extinguished and the green lamp remains lit until a clear button is operated. If an extension is already involved in a call an inhibit relay is energized in the calling unit via the alarm selection circuit preventing normal message transmission. The alarm message circuit however overrides this by cutting off the inhibit relay supply.
Patent GB-1438774-A (GB)
Title: Cathode-ray-tube yoke combination
Inventor: BROUGHTON DEAL S
IPC: H01J29/82
Filed: 1973-08-16
Abstract: 1438774 Cathode ray tubes RCA CORPORATION 16 Aug 1973 [21 Aug 1972] 38706/73 Heading H1D A c.r.t. (e.g. colour) and deflection yoke are rigidly joined by at least two paced solid bodies 30 of adhesive organic thermoplastic material bonded directly between the yoke windings and the tube, the bodies filling <20 vol per cent of the space between the yoke and tube. The yoke may be toroidal or saddle type (Figs. 4, 5, not shown) with three adhesive strips (Figs. 2, 3) or four (Figs. 4, 5). Temperatures and yoke and tube dimensions are detailed. In Fig. 5, groups (47) are connected in pairs at front and rear and preferably each strip (40) is centred on the four groups (47) to provide uniform movement to compensate temperature variations. The strips may be cast between six silicone foam rubber strips (49) on the inside or outside of yoke and tube respectively, the combination then operatively assembled, and where no dynamic convergence circuitry is used, may be finally adjusted while the tube is operated, the liquid thermoplastic injected, the tube and yoke being maintained at <50‹ C. or forced cooled. The first injected material may harden at the opposite end from the injection and no means provided to restrict flow beyond the yoke end. Small rubber tubing of neoprene rubber, butyl rubber or polyethylene may also be used. Strips (49) may be removed or retained, adhesive backed polyurethane foam tape being used if retained. Strips 30, (40) may be segmented or staggered, also ¢ inch diameter bodies may be used (e.g. three, peripherally spaced each end), The structure allows air circulation and cooling. Yoke 29 may include an auxiliary electromagnet or permanent magnet for convergence or purity.
Patent GB-943137-A (GB)
Title: Supporting device for patients
IPC: A47K3/00
Filed: 1961-10-30
Abstract: 943,137. Baths. D. T. GRANGE. Oct. 19, 1962 [Oct. 30, 1961], No. 38793/61. Heading A4N. A head support 13, for facilitating getting into and out of a bath, is adjustably positionable along a rail 4 mounted on a wall over the side of the bath. The centre of the rail is welded to the end of a strut 5. Hook 14 can be tightened on rail 4 by means of a screw-threaded sleeve. An alternative form of hook is described. The cross piece 15 may be replaced by a padded disc. A sling may be secured to the support 13 to hold one of the bather's limbs in a raised position.
Patent GB-958268-A (GB)
Title: Improvements in or relating to change-speed hubs
IPC: B62M11/14
Filed: 1961-10-31
Abstract: 958,268. Change-speed gear. FICHTEL & SACHS A.G. Oct. 31, 1961 [Nov. 4, 1960], No. 38970/61. Addition to 956,611. Heading F2D. The change-speed planetary gearing for bicycles &c. of the parent Specification is modified by replacing the radial-arm-and-slot connection, between the clutch disc 13, the ratchet ring 11 and the driven sleeve 16 fast with the wheel hub 17, by peripheral teeth 14 on the disc in permanent engagement for axial sliding with respect to teeth 15 in the driven sleeve, the disc teeth 14 also being engageable with the teeth 10 inside the ratchet ring. The teeth 14 &c. may be involute or cycloidal, and permit lost-motion between the clutch disc 13 and the ratchet ring 11, to prevent locking of an associated back-pedal brake.
Patent GB-1110420-A (GB)
Title: Reinforcing end ring for salient pole rotors
IPC: H02K3/20
Filed: 1965-09-13
Abstract: 1,110,420. Dynamo-electric machines. GENERAL ELECTRIC CO. 13 Sept., 1965 [12 Oct., 1964], No. 38995/65. Heading H2A. In a salient pole rotor comprising amortisseur bars projecting from each end of the rotor and terminating in short-circuiting end rings, the end rings are reinforced by steel rings each having a flange directed inwardly so that the centre of gravity of the projecting assembly is substantially the same as that of the unreinforced assembly.