baber/WOPTO huggingface dataset:
Patent GB-838689-A (GB)
Title: Improvements in or relating to the electroplating of metal
IPC: C25D7/06
Filed: 1958-09-30
Abstract: 838,689. Plating wire. WESTERN ELECTRIC CO. Inc. Sept. 30, 1958 [Oct. 8, 1957] No. 31126/58. Class 41. A method of high-speed electroplating of metal comprises agitating an electroplating solution by feeding metal through it at a speed of at least 1500 feet per minute, circulating the solution at a rate of at least 300 U.S. gallons per minute, and applying a current of density at least 300 amps. per square foot of the metal through the solution using the metal as one electrode. The method may be applied to coating copper wire with tin, from a solution containing stannous sulphate, sulphuric acid, cresol sulphonic acid, gelatine and beta-naphthol in water. A suitable apparatus comprises means for electrolytically cleaning 11, washing 14 and air-wiping 13, 16 a wire 10, followed by a plating bath 17 containing anodes of carbon 19 upon which rest blocks of tin 26, the electrolyte being pumped from reservoir 21 through pipes 22, 23, 24, 25 to the vicinity of the anodes, and allowed to overflow and return to the reservoir by pipes 28. The wire is passed round contact rollers 27 and may pass through the solution a plurality of times.
Patent GB-1127004-A (GB)
Title: Improvements in and relating to heat exchangers
Inventor: HURFORD STANLEY FRANK
IPC: F28F9/00
Filed: 1965-07-21
Abstract: 1,127,004. Headers for heat exchangers. DELANEY GALLAY Ltd. 11 July, 1966 [21 July, 1965], No. 31129/65. Heading F4S. In order to enable light metal alloys to be used in a heat exchanger of the tubular or plate type, the walls of the inlet manifold 2 for the hot fluid are cooled by arranging the outlet manifold 8 for the cooled " hot " fluid around the inlet manifold 2. The -wall thickness can be reduced due to this arrangement The inlet manifold 2 is provided with fins 10. The heat exchanger may be formed of stainless steel, titanium or aluminium alloys.
Patent GB-385709-A (GB)
Title: A disinfectant and insecticide
IPC: A01N25/02
Filed: 1931-11-11
Abstract: A disinfectant and insecticidal spray consists of liquefied carbolic acid, carbon tetrachloride, oil of eucalyptus, liquid ammonia, turpentine, and kerosene.
Patent GB-405424-A (GB)
Title: Improvements relating to sparking contacts for electric switches, circuit breakers and the like
IPC: H01H9/38
Filed: 1932-11-08
Abstract: 405,424. Sparking-preventing in switches. ELLISON, G., and ELLISON, Ltd., G., Wellhead Lane Works, Perry Barr, Birmingham. Nov. 8, 1932, No. 31500. [Class 38 (v).] Contacts for switches, circuit-breakers, and the like comprise one or more movable knifeshaped contacts c, each adapted to engage a pair of fixed contact blades a, and a metal strip h having bent ends attached to the knife shaped contact or contacts, the ends of the strip being adapted to engage sparking contacts d carried by metal strips e on the outer sides of the blades a. The strips e may be reinforced by springs g.
Patent GB-1015444-A (GB)
Title: Formation of fibres of heat softenable material, such as glass
IPC: C03B37/022
Filed: 1963-08-09
Abstract: <PICT:1015444/C1/1> <PICT:1015444/C1/2> In the formation of hollow glass fibres in which glass is drawn through orifices 12 in a bushing 10, communicating with a source of molten glass, the hollow tubes 36 through which a gas under pressure is fed, extend through the orifices 12 to a distance not less than 0.030 inches and not more than 0.066 inches beyond the orifices.  The glass is melted electrically directly above a plate 32 with perforations 32a and orifices 34, directly above each orifice 12, through which the hollow tubes 36 pass, and are thereby aligned.  The gas pressure and rate of drawing may be varied to give the required inner and outer diameter of fibres. Size may be applied before the fibres are grouped into a strand.
Patent GB-840692-A (GB)
Title: Improvements in or relating to vehicle seats
IPC: B60N2/42
Filed: 1956-10-16
Abstract: 840,692. Safety seats for vehicles; bumpers. REGIE NATIONALE DES USINES RENAULT, and PETRIGNANI, R. Oct. 16, 1956 [Oct. 17, 1955], No. 31517/56. Classes 103(2) and 103(4). A motor vehicle seat 1, Figs. 2, 3 and 4 has a pair of arms 10 normally retracted, in guides 9, in wings 8, 8<SP>1</SP> on the seat back 3, the arms 10 being projectable to the position shown in dotted lines in Fig. 2, by springs 11 which are normally held under compression by releasable trigger levers 14, so as to form a belt to prevent the occupant being injured by contacting e.g. the steering wheel, in event of a collision. The seat back 3 can freely pivot on a spindle 4 between stops 6, 7 on sectors 5 secured to the vehicle floor 2. The trigger levers 14 are each operated to release the springs 11, Fig. 4, by a cable 15 connected to a disc 16 rotatable on the spindle 4, the disc being connected by a rod 17 with a rod 18. The enlarged end 19 of the rod 18 is slidable in a buffer casing 20 and engageable by the rear end 23 of a rod 22 secured to front bumper 24. Light shocks on the bumper 24 are absorbed by the shock absorber 21 but in the case of violent impact the end 23 engages the end 19 of the rod 18 to cause the release of the arms 10. The rods 18 at each side of the vehicle are connected together, rigidly. If desired, the occupant of the seat can release the arms 10 by operation of a foot pedal as described with reference to Fig. 6 (not shown). In a modification the buffer when subjected to impact closes an electrical circuit to operate the trigger levers 14 by electromagnets.
Patent GB-1503658-A (GB)
Title: Flow limiting devices
IPC: F16K17/30
Filed: 1974-07-16
Abstract: 1503658 Valves HANSON BDC (CHESTERFIELD) Ltd 20 June 1975 [16 July 1974] 31521/74 Heading F2V A flow limiting valve for gas supply lines, comprises a movable valve assembly biased by a spring 20 away from seating 16. The assembly includes a stem 24, an upstream head portion 22 and a special washer 34. The abutting surfaces between the head portion and washer are provided with at least one slot 32. In use, the head portion normally rests against abutment 12 via angularly-spaced projections 28 as shown to provide the gas-flow path through the valve. Small increases in the pressure drop across the valve causes the assembly to move towards its seating 16 and thereby reduce the flow crosssection between tapered stsm 24 and the seating. However, in the event of a fault condition in the gas line downstream of the valve, the consequent large increase in the pressure drop forces the assembly on to its seating 16, whereby gas-flow through the valve is limited to that passing around the outer periphery of the washer, through the slot 32 and through annular clearance 30.
Patent GB-1262793-A (GB)
Title: Improvements in or relating to light energy detectors
IPC: H01S3/16
Filed: 1969-06-23
Abstract: 1,262,793. Lasers. AMERICAN OPTICAL CORP. 23 June, 1969 [4 Oct., 1968], No. 31621/69. Heading H1C. [Also in Division G1] In order to improve the signal-to-noise ratio in detection of light from a laser by a conventional photo-electric detector, e.g. a photodiode, the light is amplified by a laser pre-amplifier before detection. The laser pre-amplifier may take the form of a neodymium doped clad fibre, especially suitable in amplifying light produced from a similarly doped source. The core of the device comprises a low loss laser glass, doped with neodymium ions, having first or second claddings of respectively lower and higher refractive indices than the core, the second cladding being doped with samarium to absorb escaping light of the wavelength to be transmitted by the device, i.e. 1À06 Á. The device is designed to permit only one mode, the HE 11 , since the noise increases as the square root of the number of modes. Alternatively, a solid rod laser may be used, in which case the device is of doped glass or a crystal. In order to propagate only a single mode, the optical arrangement of Fig. 6 is used. Pairs of lenses 20, 21 and 24, 27 spaced apart by the sum of their focal lengths and including pinholes between them at the respective focal points, isolate the single lowest order mode. When other doping materials for the source to be investigated, are used, e.g. ytterbium, erbium, thulium and holmium, these ions are used for doping of the glass of the pre-amplifier. A further way of reducing noise is the use of a narrow band filter (40), Figs. 7, 8 (not shown), of, e.g. 1Š, narrower than the line width for the pre-amplifier. In order to reduce noise introduced by the spontaneous emission mechanism, a high band pass electronic filter may be used in the detector circuit to filter and D.C. and low frequencies to transmit only frequency components above 1 MHz.  An alternative method of filtering out this D.C. component is by the use of a beam splitter (54), Fig. 9 (not shown), at the laser pro-amplifier input end, so that the amplified spontaneous emission emitted by the front end of the preamplifier may be compared with the detector response to cancel out the D.C. component. An application referred to is a rangefinder.
Patent GB-736986-A (GB)
Title: Improvements in or relating to motor car lighting systems
Inventor: KURZ WALTER
IPC: B60Q1/14
Filed: 1953-04-15
Abstract: 736,986. Driving mirrors for vehicles. LIGHT-ACTUATED SIGNAL & SWITCHGEAR CO., Ltd. April 15, 1953, No. 31643/52. Drawings to Specification. Class 103 (2). [Also in Groups XXXV and XL (b)] A mirror mounted above the instrument panel of a motor car to enable the driver to see rearwardly has mounted on the back thereof the photo-electric cell and possibly the associated relays of a light-responsive system for controlling the car lights. The wires for such components may pass through a universal or ball jointed tube upon which the mirror is mounted.
Patent GB-1080291-A (GB)
Title: Plating metal
IPC: C25D5/34
Filed: 1964-08-04
Abstract: The surface of a basis metal having a positive electrode potential of less than 2.37 volts, e.g. Al, Mg, Be, U, Mn, Ti, Te, Zn, Cr, Fe, Cd, In, Th, Co, Ni, Mo, Sn, Pb, Cu, is plated by contacting it with an activating bath containing only a single platable metal more noble than the basis metal and in the form of a soluble salt, e.g. Sn (as sodium stannate or stannous chloride), Cu or Cd (as cyanide), Zn (as cyanide or sodium zincate), Ni (as sulphate or pyrophosphate), Ag (as nitrate or cyanide) or Pb (as carbonate), to activate the surface of the basis metal, withdrawing and immersing it into a strike bath containing in solution a plate metal and at least one alloying plate metal, e.g. Cu, Sn, Zn, Ag, Ni, Au, Cd, and electro-depositing on to the activated surface a plate containing the two plate metals. Commercial aluminium alloys are specified for the basis metal; other alloys may be used for the basis metal, including those of Mg, Sn-Pb (pewter), Zn-Sn, Zn-Cu, Cu-Sn or Zn-Ni.  For an Al surface, e.g. steel coated with an Al layer, a typical activating bath contains 10-70 g/1 stannate ion e.g. K2Sn(OH)6 with free KOH, and examples of alkaline strike baths are: (a) solution of K2Sn(OH)6, 2 KCN.  CuCn or Zn(CN)2, free KCN and KOH, for plating bronze or Sn-Zn; (b) solution of AgCN, CdO and NaCN for Cd-Ag; (c) solution of K2Sn(OH)6, Ni3(PO4)2, K2P2O7 and NH4OH for Sn-Ni.  Additions for the baths may be Rochelle salt, sodium gluconate or gluconic acid, glucoheptonic or saccharic acid, E.D.T.A., N, N-bis (hydroxyethyl) glycine. The Al bearing the alloy plate may be further plated with Cr, Ni, Sn, Cu.
Patent GB-1482257-A (GB)
Title: Drying cylinder
IPC: A01K31/04
Filed: 1976-07-29
Abstract: 1482257 Drying cylinder ESCHER WYSS GmbH 29 July 1976 [6 Aug 1975] 31679/76 Heading F4G A drying cylinder having internal peripherally extending grooves 10 into which tubes 11 penetrate for removing condensate, has in each groove a turbulence-producing element 15 which extends across the groove near the base 14 with a gap A therebetween. Several forms of element are described: the wire frame (16) 17 shown in Fig. 2 and Fig. 3 (not shown), wire rings, U-shaped elements, punched strips, and wire lattices, see Figs. 6 to 13 (not shown). The gap A should be at least 0À5 mm., and the distance H not more than 10 mm., and the peripheral spacing of adjacent elements should be from 5 to 100 times H.
Patent GB-174892-A (GB)
Title: Improvements in machines for printing from engraved plates or dies
IPC: B41F1/00
Filed: 1920-10-25
Abstract: 174,892. Waite, F., and Waite & Saville, Ltd. Oct. 25, 1920. Delivery apparatus.-Machines for printing frcm engraved plates or dies of the type described in Specification 174,436, [Class 100 (ii), Printing processes &c.], are provided with devices for stripping the printed card from the die. A mask 6 carried by a frame 5 is arranged between the die 2, which is face downwards, and the rising table 4 which gives the impression. The frame 5 is detachably mounted on arms 7, 7<a> fixed to vertical rods 9, 9<a>, which are mounted to slide in guides 10, 11 on the cross-head C of the machine and are normally held in the raised position, to facilitate the positioning of the card to be printed on the table 4, by springs h. The arms 9, 9<a> are moved by levers 12 mounted on a shaft 13 which also carries an arm 14 rocked by a cam 15 driven from any appropriate part of the machine. From the highest position, the arms 9, 9<a> are depressed so that, during printing, the mask is between the die and the sheet, and, on the table 4 falling, they are further depressed to cause the mask to strip the card from the die. The springs h may be dispensed with, and the device arranged to fall by its own weight to strip the card off the die, in which case the table 4 is arranged to recede to a greater extent.
Patent GB-1356089-A (GB)
Title: Method and device for recovering oil pollutants on the surface of water
IPC: E02B15/10
Filed: 1972-07-06
Abstract: 1356089 Collecting floating oil INSTITUT FRANCAIS DU PETROLE DES CARBURANTS ET LUBRIFIANTS 6 July 1972 [13 July 1971] 31786/72 Heading B7A [Also in Divisions B1 and E1] A ship 13 is connected by articulated arms 14 to a float 15, and arms 14 support a sheet 3 which is subsequently dropped on a floating oil slick and forms a submerged dome confining some of the oil for subsequent recovery (Figs. 1, 2, not shown). Fig. 5 (not shown) illustrates how ship 13 drops a series of sheets 3 on a large slick.
Patent GB-484723-A (GB)
Title: Improvements in or relating to tables and other supports
IPC: A47B91/02
Filed: 1937-05-07
Abstract: 484,723. Bearing - appliances. REMINGTON, M. E., and JOHNS, E. May 7, 1937, No. 31796/36. [Class 5 (ii)] [Also in Group XIV] Trays for hovers having tele scopic adjustable legs of the kind comprising a lower member or foot 7 slidable in a stationary member 6 and provided at its upper end with an enlargement 8 adapted to contact with a shoulder 6a on the inside of the member 6 to limit the outward movement have means for locking the foot in adjusted position, comprising a peg 9 carried by a spring 10 on the stationary member and adapted to engage one of a number of openings 11 in the foot. The peg 8 takes through a, hole in the stationary member 6.
Patent GB-727284-A (GB)
Title: Electrical impulse producing apparatus
IPC: G08C19/16
Filed: 1952-12-16
Abstract: 727,284. Electric telemetering systems. BRISTOL CO. Dec. 16, 1952, No. 31837/52. Class 40 (1). [Also in Group XL (b)] In a telemetering system in which the frequency of the line impulses is proportional to the magnitude of the variable being transmitted, the variable is first translated into a corresponding direct measuring voltage, and the line pulses are produced photo-electrically by a chopper-plate driven by an electric motor at a speed proportional to the measuring voltage, the motor driving a D.C. tacho-generator providing a velocity feed-back voltage which is applied in opposition to the measuring voltage, the resultant error voltage operating the motor. The measuring voltage may be derived from photo-cells, thermocouples, electrolytic cells, biological processes &c. As shown, for measuring the electric power in a line 10 a thermal converter 11, e.g. as disclosed in Specification 537,938, [Group XXXVI], produces a unidirectional E.M.F. proportional to the power which is applied in series with the negative feed-back voltage to a synchronous reversing switch 40, e.g. as described in Specification 703,772, [Group XXXVII]. The switch 40 converts the applied unidirectional voltage into an alternating rectangular voltage of the same amplitude and at the frequency of the A.C. supply 60, which is amplified at 41 and applied to the control phase 25 of an induction motor 21, the reference phase 26 of which is fed from the supply 60. The motor drives a magnetotype generator, a portion of the output 32 of which, derived from a potential divider 16, is fed back negatively to the input of the switch 40. The motor thus runs at a speed proportional to the measuring voltage and drives a gapped flywheel 33 which interrupts the beam from a lamp 34 on to a photo-cell 35 to produce impulses at a frequency proportional to the measuring voltage. These are amplified at 18 and fed over line 65 to the indicator or recorder 66 at the receiver. The voltage divider, Fig. 4, consists of series-connected resistors 70, 71, 72 and capacitors 73, 74. Capacitor 73 functions to remove ripples due to magneto commutation and to absorb voltage variations due to changes in magneto speed. This tends to produce hunting of the motor 21 which is prevented by the capacitor 74 which adjusts the characteristic frequency of the closed series loop to a value such that the inherent gain is insufficient to maintain resonance. A calibrating unit 19, Fig. 5 (not shown), is preferably used. It normally inserts a fixed bias voltage in series with the measuring voltage, whereby the motor runs at some fixed speed for zero measuring voltage and permits transmission of negative values as well as reducing the percentage motor speed variation for a given signal range. Two manually-operated switches in the unit 19 serve to switch fixed voltages into the measuring circuit in lieu of the measuring voltage for calibration purposes. Specification 710,889 also is referred to.
Patent GB-1281298-A (GB)
Title: IMPROVEMENTS IN OR RELATING TO THE PRODUCTION OF A PROTECTIVE LAYER OF SiO2 ON THE SURFACE OF SEMICONDUCTOR PLATES
IPC: C23C16/00
Filed: 1970-07-01
Abstract: 1281298 SiO 2  coating SIEMENS AG 1 July 1970 [2 July 1969] 31837/70 Heading C1A A layer of SiO 2  is produced on the surface of a semi-conductor plate by placing the plate on a base and heating it at a temperature of not more than 550 C. in the presence of O 2 , directing a jet of a mixture of SiH 4  and an inert gas towards the base, and effecting relative movement between the base and the jet. The gas mixture may contain up to 1% by vol. SiH 4 , preferably 0À5-0À8%. The inert gas may be N 2  or Ar, and the temperature 450-500 C The base may move in one direction and the jet in the transverse direction, e.g. at 1 cm./sec., and be directed perpendicular to the base. The semi-conductor may be monocrystalline Si, Ge or a III-V compound.
Patent GB-313835-A (GB)
Title: Improvements relating to teapots, coffee pots, jugs and other like containers and their manufacture
IPC: A47J45/10
Filed: 1928-11-03
Abstract: 313,835. Hitchinson, E. Nov. 3, 1928. Handles.-A handle of C or equivalent configuration is provided at its extremities with tongue-pieces a<1>, Fig. 1, which engage by an upward thrust with sockets b<1> on a teapot, jug, or like container. Alternatively, the sockets a<2>, Fig. 4, may be part of the handle and engage by sliding friction over downwardly-projecting tongue-pieces b2.
Patent GB-268014-A (GB)
Title: Improvements in and for cooking apparatus
IPC: A47J27/082
Filed: 1925-12-19
Abstract: 268,014. Bell, I. Dec. 19, 1925. Heating and cooking vessels; jackets; lids and covers.-Relates to jacketed cooking-vessels of the class comprising a food-container supported within and separated by a flue-space from an openbottomed casing adapted to be supported upon a stove. The food container 1 (shown in dotted lines Fig. 1) has a cover 4 which may be separated from or connected to the cover 5 of the outer casing 6; in the latter case while the two covers mav be merely arranged to be lifted on and off by hand, as in Fig. 1 they may be slidably mounted by suitable bearings on a vertical shaft and arranged to be raised and swung aside in the manner indicated in Fig. 4 or they may be hinged as shown in Fig. 8, or again they may be mounted on a pair of vertical shafts formed in two portions pivoted together, enabling the covers to be opened in a hinge-like manner as shown in Fig, 13. The food-container bottom and sides are provided internally with a lining of suitable heat non- conducting material such as the frame-work 42. Fig. 4, which may also be used to support partitions or trays, and externally the food-container and its lid are covered with sheet asbestos or similar materal. Between the food-container and the casing is a flue space 8, see Fig. 2, which is continuous also between the two covers, being maintained by suitable distance-pieces, and the casing is lined internally with similar material 7 to the covering of the food-container. Externally, the casing has more asbestos or similar packing material 14, separated from it by rings 7a providing an enclosed air-jacket space, the covering 14 being in turn surrounded by a plywood or other suitable casing 15. The flue gases escape finally through apertures provided in the top of the casing cover 5 which may be provided with supporting means such as the plate 35, Fig. 1, for enabling articles placed thereon to be heated by the gases. The Provisional Specifications describe many modifications and alternative constructions, including provision for increasing the effective heating-surface of the food-container' by means of projecting bars of copper and also forms in which the outer casing is dispensed with.
Patent GB-510839-A (GB)
Title: Improved method and apparatus for making multicellular glass
IPC: C03B19/08
Filed: 1938-11-07
Abstract: 510,839. Making multi cellular glass. CORNING GLASS WORKS. Nov. 7, 1938, No. 32251. Convention date, Nov 5, 1937. [Class 56] Cellular glass is manufactured by sintering granular glass under mechanical and gaseous pressure and then releasing the pressure and heating to a higher temperature. In the continuous process illustrated by Fig. 2, granular glass is fed from a hopper 49 through an air lock to one or more feed screws which apply the necessary mechanical pressure, pressure fluid admitted at 45 supplying the gaseous pressure, and a sintering temperature is applied in the chamber 37. The mass is then extruded through a nozzle 38 on to a conveyer 43, allowed to expand in a chamber 39 at a higher temperature and finally annealed in a chamber 40. The expanded frit may be rolled while soft or the expansion may take place into a confined space to ensure a product of uniform thickness with vitreous surfaces. The sintering tube may be vertical in which case the weight of the granular glass may provide sufficient mechanical pressure, and the feed may be either upwards or downwards. In some processes the mechanical pressure may be released to produce weakened portions or voids in the-glass mass. The effects of varying temperatures, pressures and other conditions are discussed.