baber/WOPTO huggingface dataset:
Patent GB-1215617-A (GB)
Title: Method for the formation of local metal coatings on electrically insulating articles
IPC: C25D5/02
Filed: 1968-10-15
Abstract: 1,215,617. Forming a metal coating on an electrically insulating article. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Oct. 15, 1968 [Oct. 18, 1867], No. 48885/68. Headings C7B and C7F. A local metal coating is formed on an electrically insulating article by sensitizing the surface of the article, then chemically depositing a uniform electrically conductive metal layer on the article from a solution containing a salt of the metal and a reducing agent, then placing the article in an electro-plating bath and electro-depositing a metal layer on a desired area of the article which area is bounded by a groove in the article, wherein electrical connection for electro-deposition is made to the desired area, wherein the depth and angle of incision of the groove are matched to the electroplating bath and current density used so that no metal is electro-deposited in the groove, wherein the composition of the electro-plating bath is such that the bath dissolves the chemically deposited metal layer in the groove and over the article outside the desired area, and wherein the groove is formed in the electrically insulating article either during manufacture of the article or before the chemical deposition process is performed. In an example an operating knob for radio apparatus is electro-plated over only part of its surface. The knob is moulded from a coloured acrylonitrilebutadiene-styrene resin, is cylindrical in shape, has a boss on one side whereby it can be secured to a shaft and on the other side is provided with a circular groove which during electro-plating prevents plating of the area enclosed by the groove. The groove is 0À5 mm. deep and has an angle of incison of 11 degrees (i. e. the angle subtended by the walls of the groove at the apex of the groove). The knob is degreased and then treated with solutions containing the following- a) H 2  SO 4  and H 2  CrO 4  b) SnCl 2  2HO 2  O and HCl c) PdCI 2  and HCl d) NiCl 2  6H 2 O, CoSO 4  H 2 O, sodium acetate, sodium tartrate, sodium citrate, (C 2  H 5  ) 2  HNBH 3 , isopropanol and lead acetate. Electrical connection was made to the knob by means of its boss and the knob was electro-plated withi) Cu from an aqueous electrolyte containing CuSO 4  5H 2  O, H 2  SO 4  and a brightening agent using 2A/sq. dm. ii) Ni from a bath at pH 4À5 and 50-55‹ C. containing NiCl 2  6H 2  O, NiSO 4  6H 2  O, H 3  BO 3  and brighteners using 4A/sq. dm. iii) Cr from an electrolyte at 50‹ C. containing CrO 3 , H 2 SO 4  and Cr 2 O 3  using 20A/sq. dm. After electro-depositing the Cu, the chemically deposited Ni-Co had dissolved and the resin was exposed.
Patent GB-1327713-A (GB)
Title: Integrated circuits
IPC: H01L21/20
Filed: 1971-10-21
Abstract: 1327713 Semi-conductor devices SIEMENS AG 21 Oct 1971 [27 Oct 1970] 48896/71 Heading H1K An interconnection between elements in an integrated circuit is provided at least in part by a buried zone A 2  of the monocrystalline semiconductor body and a polycrystalline channel 9 connecting the zone A 2  to the surface of the body, the zone A 2  and channel 9 being of the same conductivity type. The surface-emergent area of the channel 9 may be connected directly to a zone of one of the circuit elements, or may be indirectly connected thereto via a conducting track overlying an insulating layer or via a surface channel of the semi-conductor body of the same conductivity type as the polycrystalline channel. Zones of the elements may contact the buried zone A 2  directly. The polycrystalline channel 9 maybe formed simultaneously with the epitaxial layer 8 overlying the buried zone A 2  by the provision of a localized site on the prediffused zone A 2  which causes the material deposited thereon to form a polycrystalline structure. Such a site may comprise a thin layer of an alien material such as a dopant, or of suitably deposited Si. Where a dopant layer is used the dopant entering the deposited polycrystalline channel determines its conductivity type, although additional diffusion from the surface may also be employed, optionally for a sufficient time to cause the P-N junction between the channel 9 and the surrounding material to occur within monocrystalline material. The channel 9 may alternatively be formed by depositing a completely monocrystalline epitaxial layer 8 and then either vaporizing a selected area thereof with an electron or laser beam and vapour depositing polycrystalline material selectively into the resulting hole, or melting a selected area with an electron or laser beam, depositing an alien substance such as SiO 2  or a dopant on to the melted area, and cooling to resolidify, the presence of the alien substance causing polycrystalline formation. Fig. 5 shows a twolevel interconnection structure in which two buried layers A 1 , A 2  at different levels and of opposite conductivity types are connected to the surface by respective polycrystalline channels 3/10 and 9. The upper parts 10 of the former channels form during deposition of an upper epitaxial layer 8 as a result of the seeding action of the lower parts 3 of these channels already formed in a lower epitaxial layer 2. Dopant from the parts 3 diffuses into the parts 10, and may be reinforced by further diffusion from the surface. The surface-emergent areas of the channels 3/10, 9 are connected to the various elements of the integrated circuit.
Patent GB-1030670-A (GB)
Title: Semiconductor devices
Inventor: KURPISZ ZENON JAN
IPC: H01L29/74
Filed: 1964-12-02
Abstract: 1,030,670. Semi-conductor devices. STANDARD TELEPHONES & CABLES Ltd. Dec. 2, 1964, No. 48962/64. Heading H1K. A device of the type described in Specification 1,030,669 has a fifth region 4 of the same conductivity type as the central (base) region of the wafer diffused into the anode region 1, a first metallic contact 8 applied to the cathode (3) and gate regions, and a second metallic contact 5 applied to the anode and fifth regions. Control electrodes 6 and 7 are provided, and the contacts 5 and 8 serve interchangeably as anode and cathode. In a modification, Fig. 2 (not shown), a further region (10) is diffused into the gate region and the control electrodes 6 and 7 are replaced by a single electrode (11) making contact with this further region (10) and with the gate region.
Patent GB-1196568-A (GB)
Title: Apparatus for the Heat Treatment of Electrically Conductive Materials
Inventor: STERLING HENLEY FRANK
IPC: H05B6/24
Filed: 1968-10-17
Abstract: 1,196,568. Induction furnaces. STANDARD TELEPHONES & CABLES Ltd. 17 Oct., 1968, No. 49296/68. Heading H5H. [Also in Division F4] To ensure adequate-heating of the charge at the pouring end of an induction-heated, hollowwalled crucible of metal of high electrical and thermal conductivity, such as silver plated copper, the induction coil 8 surrounding the crucible is connected to the pourer 4 so that the primary current path includes an inner surface portion 5 of the crucible situated at the pourer end 4 and thereby on to the charge. The crucible is a boat-shaped cluster of tubes 1 terminating in a cooling fluid outlet manifold 2 at one end and a hollow pourer member 4 at the other end. Cooling fluid circulates via an inlet pipe 7 through member 4, tubes 1, manifold 2 and also the copper induction coil 8. Current is supplied via inlet pipe 7 and the free end 8A of coil 8, the inlet pipe 7 being earthed or connected to the earthing end of the oscillatory circuit, the primary current path being via pipe 7, inner surface 5 of pourer 4 and induction coil 8. The charge is heated largely by the primary current to the pouring end 4, whilst secondary circulating currents in the tubes 1 cause eddy current heating of the charge in the rest of the crucible.
Patent GB-1496984-A (GB)
Title: Automatic banking equipment
IPC: G07F19/00
Filed: 1975-12-03
Abstract: 1496984 Automatic banking equipment DIEBOLD Inc 3 Dec 1975 49581/75 Heading G4V Automatic multiple-transaction banking equipment comprises. a remote vault-like unit 1. It has a manual keyboard means 4, card entry means 2, card reader means, cash dispenser and delivery means and customer accessible cash drawer means, the. unit being adapted to be activated by the entry of coded card means into the card entry means and the card reader means. A programmable display means 5 is co-ordinated with and integrated with coded actuating. means, the-keyboard and the cash storage dispensing and delivery mechanism to accomplish the multi-fold purposes of imparting clear and detailed instructions or directions to the customers for carrying out any one of a number of different banking transactions or procedures. There-is provision for changing the instructions when desired, of. permitting information read . by the card reader from a coded card, such as the customer's name, to be displayed at the programmable display panel 5. Alpha-numeric data keyed into the keyboard by the. customer being displayed at panel 5. for checking or verification by the customer, such as the amount of money desired to be withdrawn. Also, other visual information, messages, pictures or the output of video tape such as advertising or entertaining or education material can be displayed,
Patent GB-1388607-A (GB)
Title: Printers
IPC: B41J1/60
Filed: 1972-10-27
Abstract: 1388607 Typewriters TRIUMPH WERKE NURNBERG AG 27 Oct 1972 [15 April 1972] 49660/72 Heading B6F A type head 3 is supported by means of a carrier 8 formed with an arm 12 engaging the type head to restrain it against movement tangentially of a platen 14.
Patent GB-1482800-A (GB)
Title: Device for separating sheets from a stack
IPC: B65H3/30
Filed: 1974-11-20
Abstract: 1482800 Separating sheets GD SpA 20 Nov 1974 [21 Nov 1973] 50275/74 Heading B8R In an apparatus wherein sheets are separated from the bottom of a pile resting on lips 8 by a reciprocating suction device 9, pile manipulating devices 23 and 24 are arranged to be periodically brought into engagement with opposite sides of the pile in order to displace groups of sheets in opposite diections laterally of the pile. The devices 23 and 24 are arranged on a toggle linkage and engage the pile at different vertical heights. The device 23 brings the bottom sheet into engagement with a register stop 25 immediately before separation. The sheets are brought between cross bars 7 on endless belts 5 for further conveyance.
Patent GB-1066009-A (GB)
Title: Leak detector
IPC: G01M3/20
Filed: 1965-11-29
Abstract: 1,066,009. Detecting leaks. GENERAL ELECTRIC CO. Nov. 29, 1965 [Dec. 28, 1964], No. 50533/65. Heading G1S. In a leak detector system, there is provided a detector assembly 14 for sensing the presence of a tracer gas, a probe 10 for introducing gas samples into the system, a pump 12 to cause the gas sample to flow from the probe to the detector and a conduit 26 for conducting gas samples from the probe to the input of the detector, the conduit 26 characterized by a portion enclosing a piece of absorptive material 13 for absorbing moisture passing through the conduit while conducting gas samples from the probe to the detector. The detector element 21 communicates with the moisture absorptive section 26 through apertures 29, 30. A felt disc 32 is provided for diffusing gas samples through the pump 12.
Patent GB-1477362-A (GB)
Title: Field effect transistors
IPC: H01J29/45
Filed: 1974-05-31
Abstract: 1477362 Field effect transistors RAYTHEON CO 31 May 1974 [1 June 1973] Divided out of 1477361 50553/76 Heading H1K An IGFET with a single-layer gate insulation 86 is stabilized with respect to its threshold voltage by ion implanting charges in a region 90 of the gate insulation 86 which is spaced from the insulator-semiconductor interface, the ions preventing the migration of additional charges into the gate insulation 86.
Patent GB-1122032-A (GB)
Title: Improvements in or relating to electric power supply arrangements
Inventor: LOVEGROVE HENRY JOSEPH
IPC: H02J3/14
Filed: 1964-12-11
Abstract: 1,122,032. Load limiting arrangements. SANGAMO WESTON Ltd. 24 Nov., 1965 [11 Dec., 1964], No. 50569/64. Heading H2H. In a peak load-shedding arrangement comprising a magnetic or thermal current operated relay 14 disconnecting a load 17 through contacts 16 which may be tapped before or after the relay, the current value is adjustable by a manually operable means freely accessible. Subsequent relays 14a, 16a may disconnect other loads 17a in order of priority. A suitable thermal relay comprising two opposed expansible elements (20, 23), (Fig. 4, not shown), providing ambient temperature compensation is described in the Specification.
Patent GB-1159105-A (GB)
Title: Improvements in or relating to Thermionic Cathodes for use in Electric Discharge Tubes
IPC: H01J17/06
Filed: 1966-11-11
Abstract: 1,159,105. Thermionic cathode constructions. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 11 Nov., 1966 [16 Nov., 1965],No. 50690/66. Heading H1D. A thermionic cathode for use in an electric discharge tube comprises a thin walled barrier member 1 having a high thermal resistance which serves as part of the cathode support structure and as current carrier and a current bridge 10 connected in parallel with the barrier having a cross-section greater than that of the barrier. A cathode comprises a meshed grid of thorium plated tungsten 4 supported by a central current supply rod 6 and a cylindrical thin walled heat barrier 1 bridged by four current carrying strips 10. Another cathode comprises a cylindrical emissive surface heated by two wires wound on a ceramic cylinder in a manner such that their magnetic fields compensate to reduce hum. Alternatively the emissive surface may be mounted on the hood 5 and be heated by a filament below on a flat ceramic plate supported by the rod 6. The bridges may be connected to the heater wires with the upper ends spaced from the heat barrier.
Patent GB-1521830-A (GB)
Title: Sliding door frame and a sliding door assembly including such a frame
IPC: E06B3/46
Filed: 1976-12-09
Abstract: The multi-wing sliding door has a fixed frame which is equipped with telescopically designed horizontal spars (3, 4). The telescopically designed spars (3, 4) of the fixed frame consist of an outer profile (5) and of an inner profile (6). The outer profile (5) is connected to one vertical fixed-frame spar, whilst the inner profile (6) is secured to the other vertical fixed-frame spar (2). The inner profile has a guide groove (9) which is opened upwards at the upper spar (3) and downwards at the lower spar (4). A web (10) of the outer profile (5) engages into this guide groove (9) in the region of the stationary wing (12). Each sliding wing (13, 20) is equipped, on the front side, with a roller or slider displaceable in the same guide groove (9). In contrast the rear rollers (15, 19) are mounted on the respective adjacent wing. <IMAGE>
Patent GB-1334056-A (GB)
Title: Liquid clarifying apparatus
IPC: B01D21/18
Filed: 1970-10-30
Abstract: 1334056 Removing scum from liquid ENVIROTECH CORP 30 Oct 1970 [30 Oct 1969] 51649/70 Heading BID Scum is removed from liquid in a settling or aeration tank by a moving baffle 38 which pushes the scum 47 before it towards a fixed baffle 50, means 54 engaging baffle 38 and causing it to pass beneath baffle 50 leaving the scum upstream of baffle 50, whence it is removed by endless conveyor 58 running along baffle 50. As illustrated baffles 38 and 50 extend radially of a circular tank with a central inlet and peripheral overflow for clean liquid, but the invention is applicable to rectangular tanks. Scum is excluded from the clean liquid overflow by annular baffle (24). In Fig. 3, baffle 38 is pulled along behind a conventional tank floor scraper (Fig. 2, not shown) and biassed upwards by springs 44. Scum 47 is carried down the underside of ramp 54 by baffle 38 and then rises between baffle 50 and another fixed baffle 52 which define channel 48 in which conveyor 58 operates. Rails 56 guide baffle 38 under baffles 52 and 50. In Fig. 4 (not shown) baffle 38 has a float (82) in place of springs 44. In Fig. 5 (not shown) there is only one fixed baffle 50 and guide rails (86).
Patent GB-1063668-A (GB)
Title: Vapor generator
IPC: F22D1/00
Filed: 1964-12-18
Abstract: 1,063,668. Steam generators. COMBUSTION ENGINEERING Inc. Dec. 18, 1964 [Dec. 30, 1963], No. 51686/64. Heading F4A. A steam generator comprises a vertical cylindrical pressure chamber 14 with end caps 16, 18 the upper cap being provided with an annular cavity 32 communicating with a similar cavity 34 in lower cap by bundles of heating tubes 40, through which heating fluid passes from inlet 36 to outlet 38. Feed water is supplied by a conduit 68 rising centrally through a downcomer reservoir 48, into a vapour space 56, a deflector 74 diffuses the feedwater emitted from holes 70, feedwater being made to flow down the walls of the reservoir or cascade off a deflector 76. The reservoir at its lower end communicates with an evaporator section 58 through outlet pipes 62. Vapour from the evaporator is made to flow through swirl inducing blades 82 in order to separate the dry steam from the water laden vapour, the dry steam continues into the superheater section 86 while the condensed water returns to the reservoir. The superheated steam leaves via outlet 98. The heating fluid may be gas or liquid, heated by conventional means or by a nuclear reactor. The steam in the superheater section follows a path through the bundles of pipes 40 guided by baffles 92, 94.
Patent GB-1270177-A (GB)
Title: Method of deoxidation adjustment for aluminium semi-killed steel
IPC: C21C7/00
Filed: 1969-10-22
Abstract: 1,270,177. Aluminium semi killed steel. NIPPON KOKAN K. K. Oct.22, 1969 [Nov. 2, 1968], No. 51770/69. Heading C7D. In the deoxidation of aluminium-semi-killed steel whereby a wire rod of aluminium or aluminium alloy having a diameter of at least 5 mm . is fed into a molten steel bath at a speed of at least 3 metres/sec, the EMF is measured with an oxygen concentration cell in a ladle, before and continuously during the addition of aluminium, the addition being stopped when the EMF reaches a predetermined calculated value. The bath may be stirred by blowing an inert gas through porous refractories fixed to the bottom of the bath. The EMF may be continuously monitored and the addition stopped when the predetermined value is reached, or the predetermined value may be used to calculate the required amount of aluminium to be added and the operation stopped when that amount has been added.
Patent GB-1253522-A (GB)
Title: Cold-chamber pressure casting machine
IPC: B22D39/02
Filed: 1968-11-01
Abstract: 1,253,522. Casting machines. BUHLER A.G. GEB. 1 Nov., 1968 [8 Nov., 1967], No. 51834/68. Heading B3F. [Also in Divisions F1, G1 and G3] A pressure casting machine has an injection sleeve 11, a melting or holding crucible 2, a piston pump 4 for conveying the melt 3 from the crucible to the injection sleeve and having a feed aperture 8 leading into the pump chamber below the operating level of the melt, and means for maintaining a constant level of melt in the crucible. Said means comprises a displacement device which may be an immersion element 17, Fig. 1, lowerable into the melt by means of an hydraulically operated piston 19, or an insert element 91, Fig. 2, having an open ended chamber 94 into which a pressure medium, i.e. gas or liquid, may be admitted to lower the level of the melt within the chamber 94. In another embodiment, Fig. 3 (not shown), the open end of the insert element 91 is constricted and the chamber is provided with a piston constructed as a float. Operation of the displacement device is initiated by level sensing devices which may be in the form of electrodes 33, 95, 96, 97, a pressure follow-up valve (184), Fig. 5 (not shown), or an open ended tube (154), Fig. 4 (not shown), containing gas, and is automatically controlled either electrically, Figs. 1 and 2, or pneumatically, Figs. 4 and 5 (not shown).
Patent GB-1333755-A (GB)
Title: Optical system for a microscope
IPC: G02B21/02
Filed: 1970-11-06
Abstract: 1333755 Microscope objectives BAUSCH & LOMB Inc 6 Nov 1970 [6 Nov 1969] 53024/70 Heading G2J A microscope comprises eyepiece 25, and an objective consisting of a series of semi-objectives all of which are alignable along the optic axis with a common lens system 21 which corrects the aberrations of each semi-objective, the members of the series all being made to have roughly equal aberration, the aberration-correcting system having a first negative component, preferably a doublet, and a second positive component. Optical data are given for the aberration-correcting system and three separate semi-objectives used in conjunction therewith, one of these being of the oil-immersion type.
Patent GB-1316234-A (GB)
Title: Electrical printers
IPC: G06K15/16
Filed: 1971-11-17
Abstract: 1316234 Selective printing ROBERT BOSCH G.m.b.H. 17 Nov 1971 [18 Nov 1970] 53318/71 Heading B6F A printer comprises a recording head 18 having recording electrodes 22, the head 18 being traversable with respect to a record strip 19 by means of a stepping motor 17 which also returns the head to beginning-of-line position and advances the record strip 19. The stepping motor 17 drives a cable 26 to which the recording head 18 is attached. The cable passes round a pulley 27 which carries a light shield 36 which interrupts a light beam falling on a photo-transistor 34 at the end of a line to cause reversal of the motor 17 and consequent return of the recording head 18. During return of the head 18, a crank 37 acts on a pawl-and-ratchet to advance the record strip 19. The record strip comprises metallic paper from which the electrodes 22 burn spots of metal coating. The printer may be coupled to a desk calculator.
Patent GB-1220018-A (GB)
Title: New formaldehyde condensation products and their use
Inventor: SCHADE FRANZ
IPC: D06P1/62
Filed: 1969-10-31
Abstract: 1,220,018. Tanning agents. FARBENFABRIKEN BAYER A.G. 31 Oct., 1969 [2 Nov., 1968], No. 53483/69. Heading C3R. [Also in Division C6] A tanning agent comprises a condensate of formaldehyde with a sulphonated terphenyl. The terphenyl may be the 1,2-, 1,3- or 1,4- isomer or a mixture of isomers produced as a by-product in the preparation of biphenyl. The sulphonation may be at 60-180 C. using as sulphonating agent 2-3 moles of sulphuric acid monohydrate or 20% oleum per mole of terphenyl. The product may have up to 4 sulphonic acid groups and be otherwise unsubstituted. The condensation reaction may be at 100-200 C. and 1-12 atmospheres pressure using 0À4 to 1 moles of formaldehyde per mole of terphenyl sulphonate. Ammonia or sodium hydroxide may be added to a pH of 3 to 7. The neutralized product may be spray dried.