baber/WOPTO huggingface dataset:
Patent GB-1504484-A (GB)
Title: Semiconductor device and a method for manufacturing the same
IPC: H01L21/3105
Filed: 1976-08-06
Abstract: 1504484 Semiconductor devices TOKYO SHIBAURA ELECTRIC CO Ltd 6 Aug 1976 [13 Aug 1975 (4)] 32879/76 Heading H1K A semiconductor device has a first protective silicon oxide layer 27 and a second protective P 2 O 5 - and B 2 O 3 -containing silicon oxide layer 28. The concentrations of the P 2 O 5  and B 2 O 3  being such that the melting point of the second layer 28 is below 1200‹ C., the ratio between the etching rates of the first and second insulating layers 27, 28 in NH 4 F is between 0À5 and 2À0, and the polarizability of the second insulating layer 28 is below 0À3. The second layer 28 is heated to a temperature below 1200‹ C. to round off its edges before or after electrode connections 29-32 are provided through the two insulating layers 27, 28.
Patent GB-1418154-A (GB)
Title: Carrying out impact tests with rail vehicles
IPC: G01M7/08
Filed: 1973-07-10
Abstract: 1418154 Railway stops DSO " BULGARSKI DARJAVNI JELEZNITZI" 10 July 1973 32924/73 Heading B7L [Also in Divisions G1 B8 and F2] A railway track 21, Fig. 6, supports a ramped track section 17 formed by a pair of rails 19 with load bearing wedge shaped bases 20 fixed by stops 24, and shoes 14 adapted to be contacted by the wheels of the vehicle to be braked are interconnected by a bar 16 and arranged to be displaced up the ramp against the efforts of springs 15. The shoes 14 travel into contact with spring buffers 25 of bumpers 18 fixed to the rails 19 by stops 24.
Patent GB-506533-A (GB)
Title: Improvements relating to transparent windscreens and the like for preventing or minimising dazzle
IPC: B60J1/02
Filed: 1937-11-30
Abstract: 506,533. Reducing dazzle in vehicle windscreens and windows. SCHNEIDER, M. Nov. 30, 1937, No. 33048. Drawings to Specification. [Class 103 (ii)] [Also in Group X] In order to minimize dazzle, a vehicle windscreen or window is curved outwardly away from the driver, and is so placed that the portion thereof penetrated by the general line of vision lies substantially at right-angles to the line of vision. The screen or window may be in the form of a portion of the surface of a cylinder, and may be in two or more portions. An additional opaque screen may project upwardty from the lower edge of the screen, of such a height as not to interfere with the vision of the driver. In the case of side windows, means are provided enabling the panes to be raised and lowered, or slid laterally, to ontrol ventilation. Reference has been directed by the Comptroller to Specification 123,557, [Class 103 (ii)]
Patent GB-1027017-A (GB)
Title: Simulation of conditions met by extraterrestrial satellites
IPC: B64G7/00
Filed: 1964-08-13
Abstract: 1,027,017. Apparatus for testing satellites. ELECTRONIQUE MARCEL DASSAULT. Aug. 13, 1964 [June 9, 1964], No. 33065/64. Heading F3A. [Also in Divisions E2 and G3] Apparatus in which a body 20 is suspended under conditions which simulate the behaviour of an artificial satellite comprises a support rotatable about a vertical axis, the body being suspended from the support along the axis of rotation, and a device providing a mutual feedback control of the rotary movements of the body and its support about their common axis. The suspension means is selected to have the lowest possible resistance to torsion and a high resistance to stresses perpendicular to the vertical axis. The body 20 is suspended from a framework 24 by an elongated member 22, the framework being supported by a rotatable plate 40 within an evacuated chamber 51 provided with observation windows 52. The member 22 may consist of three steel strips, Fig. 3, symmetrically arranged and a similar member 25 may connect the body 20 to the base of the framework 24. Light from a source S, simulating a star, is received within the body 20 through a telescope L and a mirror 35 reflects light to a collimating telescope 36 mounted on the framework 24. Within the body 20 is a fly wheel driven electrically to control the orienta tion of the satellite in response to external signals. The mounting plate 40 is fixed to the rotor 44 of a reversible electric motor M. The apparatus may be used to test the alignment of telescope L with a light source or to test pneumatic means for directing the satellite. In testing the behaviour of the flywheel 21, a signal is transmitted to start the wheel 21 rotating, and light reflected from the mirror 35 to the telescope 36 is transmitted to a device 49, which then transmits a signal to an amplifier 47 proportional to the resultant torque on the body 20 produced by the flywheel. Amplifier 47 feeds the signal to start the motor M, which then rotates the plate 40 in a direction to restore the satellite to the zero position. The sensitivity of the telescope 36 determines the instant at which the restoring motion of plate 40 is started and this is dependent upon the suspension of the body 20. By transmitting a signal to the motor M through a circuit 50, the framework may be rotated and the effect on the body 20 observed through the windows 52. A thrust-bearing which aligns the axis in the vertical position comprises a stationary part 60 surrounding a movable part 69. Within the part 60 is an annular duct 68 filled with compressed air at constant pressure and communicating through channels 66, 67 with recesses 61 beneath plate 40 and recesses 64 adjacent the part 69. Thus as the pressure rises in recesses 61 the plate is pushed upwards and if the part 69 tilts consequent rise in pressure in a recess 64 restores the part 69 to the vertical.
Patent GB-635648-A (GB)
Title: Electric pocket and like lamps
Filed: 1947-12-16
Abstract: 635,648. Electric battery lamps. VLK, J. Dec. 16, 1947, No. 33097. Convention date, Nov. 14, 1939. [Class 39 (ii)] [Also in Group VI] The intensity of illumination of a pocket battery lamp is regulated by adjustment of the vibratory contactor 4 of an electro-magnetic interrupter which has an energizing winding connected in series with the lamp bulb, contactor, and battery 8. The device may be used as a medical coil by providing a secondary winding connected to a pair of output terminals 6, and a single pole change-over switch 5 on the outside of the casing to cut the lamp out of circuit. The iron armature 3 may be mounted on the end of a resilient blade spring 2 which forms one of the contacts of a battery, as described in Specification 635,647, a clamping screw 10 being mounted on an insulating plate 7 passing through an aperture in the spring 2.
Patent GB-384432-A (GB)
Title: An improved preparation for promoting adhesion between driving belts and pulleys
IPC: F16G1/00
Filed: 1931-12-01
Abstract: 384,432. Adhesion compositions. BILLAU, T. E., 144, Derby Road, Notting- ham. Dec. 1, 1931, No. 33206. [Class 80 (i).] A composition for promoting adhesion between driving belts and pulleys comprises a semi-solid solution of resin in pure lubricating oil, formed by mixing the oil and resin, boiling, and simmering, the proportions used being such that the final product is semi-solid when cool.
Patent GB-886150-A (GB)
Title: Sectional hot top
IPC: B22D7/10
Filed: 1960-09-28
Abstract: 886,150. Ingot moulds. UNITED STATES STEEL CORPORATION. Sept. 28, 1960 [Oct. 28, 1959], No. 33355/60. Class 83 (1). A sectional hot top for a generally rectangular mould opening comprises slabs 4, 6, whose end faces diverge outwardly from the inner to outer faces, each of the end faces 12 of one opposed pair of slabs 4 tapering downwardly toward the opposite end face for the majority of its length and then at a greater taper to the bottom thereof, and each of the end faces 36 of the second pair of slabs having corresponding tapers downwardly away from the opposite end face. The end faces 12 of the slabs 4 have projections 18 which engage corresponding grooves 38 in the end faces 36 of the slabs 6. Each of the slabs has an arcuate section closed slot 22, 24 which open into the inner face of the slab at openings 23, 56 respectively. The slots may be filled partially or completely with an exothermic material or a combustible filler such as corrugated cardboard and are vented by holes 26, 60. The slabs 6 have cut-away portions 49 into which wooden wedges are engaged. When assembling the slabs 6 are supported on top of the mould by rods 68 engaging in holes 62, and the slabs 4 are slipped into place, wires 70 placed around, and wedges inserted.
Patent GB-1504821-A (GB)
Title: Nonallergenic lanolin and derivatives thereof
IPC: A61K8/63
Filed: 1976-08-11
Abstract: 1504821 Purifying lanolin KAO SOAP CO Ltd 11 Aug 1976 [9 Oct 1975] 33357/76 Heading C5C [Also in Division C2] Non-allergenic lanolin is produced by subjecting lanolin to column chromatography using magnesium silicate as adsorbent and eluting with a non-polar solvent, and collecting the eluates so obtained. Suitable solvents are chloroform, benzene, n-hexane, CCl 4 , petroleum ether and mixtures thereof.
Patent GB-1131335-A (GB)
Title: Photographic colour processing
Inventor: COHEN DAVID LIONEL
IPC: G03C7/30
Filed: 1966-07-25
Abstract: 1,131,335. Processing photographic silver halide colour material. ILFORD Ltd. Aug. 23, 1967 [July 25, 1966], No.33381/66. Heading G2C. In the processing of an exposed photographic light-sensitive silver halide colour material by colour development followed by bleaching and fixing or by bleach-fixing, stain or colour fog is reduced or eliminated by treating the colour developed material before or during the bleaching step with an aqueous solution of N-hydroxymorpholine or N-amino-morpholine. The material may be washed between each successive treatment and the bleaching step may be preceded by an acid stop bath treatment. The compounds may be included in an acid stop bath, the bleach bath and/ or the bleach-fix bath.
Patent GB-1166771-A (GB)
Title: Flowmeter Frequency Control System
IPC: G01F1/66
Filed: 1967-07-20
Abstract: 1,166,771. Acoustic fluid flow-meter. WESTINGHOUSE ELECTRIC CORP. 20 July, 1967 [31 Oct., 1966], No. 33415/67. Heading H4D. In a fluid flow-meter of the type in which the difference #T between the downstream and upstream transit times of acoustic signals propagated between two transducers is determined, compensation for changes in the velocity C of sound in the fluid is provided by deriving a signal indicative of ¢ #T and using this to control the frequency of a clock signal generator used with a counter to determine #T. In the Fig. 2 embodiment the two received pulses, obtained in response to a pulse transmitted from each transducer towards the other, are applied to bi-stables 46, 47 so that gate 49 is opened for a time #T to pass clock signals from generator 32 to binary counter 43. A digital-to-analogue converter 58 converts the counter 43 setting to a flow-velocity readout. The clock signals also drive counter 37 which produces an output marker signal from gate 38 when a count is reached corresponding to the time acoustic pulses would be received if the sound velocity were a reference value C a  and the flow velocity were zero. For zero flow velocity the two received pulses occur simultaneously and coincidence circuit 40 provides an output signal whose occurrence time T differs from that of the marker signal if the sound velocity C is not equal to C a : this difference is used to vary the frequency of generator 32 and thereby make the marker signal coincident with the circuit 40 signal. For a finite flow velocity, circuit 40 gives no output so an alternative signal occurring at time T is provided as follows. When the later of the two acoustic pulses received in the Nth transmission cycle occurs the binary complement of half the count reached by counter 43 is transferred to register 52; in the (N+1)th cycle the register will consequently be filled, by means of clock signals fed via gates 49 and 61, at a time ¢ #T after the opening of gate 49 (i.e. at time T).
Patent GB-429677-A (GB)
Title: Improvements in powder-puffs
IPC: A45D33/34
Filed: 1933-11-29
Abstract: 429,677. Powder-puffs. KUPFER, (nee STADE), L., 6, Weltistrasse, Zurich, Switzerland. Nov. 29, 1933, No. 33458. [Class 131] [See alsc Group XVII] A powder-puff consists of a pad of spongy latex rubber or similar rubber. like material such as viscose sponge having very fine pores and a smooth or mossy surface and such that it can be washed without impairing its resilience. The puff may be in the form of a flat circular pad, or twc such pads 3, 4 may be fixed together along their circumference by vulcan. izing or by a waterproof adhesive 5. The edge of the pad may be bevelled.
Patent GB-1040248-A (GB)
Title: Method and apparatus for producing labels
IPC: B41J13/12
Filed: 1964-08-17
Abstract: 1,040,248. Typewriters &c. W. D. CLINTON, D. R. FORRY, J, J, GRIMM, and R. W. JONES. Aug. 17, 1964 [Aug. 20, 1963], No. 33516/64. Heading B6F. [Also in Division B5] Labels, comprising a base tape carrying printed matter and having on one side an adhesive coating protected by a strippable layer and on the other a transparent tape secured by a pressure-sensitive adhesive coating, are made by printing the base strip, e.g. by use of a typewriter, adhesively securing the transparent tape thereon, cutting or scoring all layers other than the strippable layer, and removing the latter. The base tape is preferably of opaque polyvinyl fluoride, the transparent tape of " acetate," and the strippable tape of paper. Apparatus for carrying out the method comprises, Fig. 1, a frame 13 of parallel bars, mountable at 19 on the carriage 21 of a typewriter, and having extensions 15, 17 slotted to hold reels 69, 31, of transparent and base tape respectively. The web 27 of base tape is led over rollers and around the platen roller 35 of the typewriter, and the transparent web 67 is led around a roller 45 pressed into contact with roller 35 by a lever 57 which, when depressed, presses by a cam 55 a spring 49 bearing against a pair of links 39 carrying the roller. The required items platen roller 117 by a spring 123 and carrying teeth meshing with those of the platen roller. The combined tapes may be severed by a slotted knife 147 co-operating with an anvil plate 153 and moved forward by bar 149 connected to an operating rod 151, but preferably, where a number of successive matters are typed on the tape (e.g. reference numbers to be adhesively secured to the backs of library books), cutting each label is effected by a scoring knife 163, moved laterally on guide rods 159 and by a handle 171, and so adjusted by a screw 167 as to cut all layers except the strippable layer. On completion of a series the laminated tape may then be severed and the cover strip peeled from the individual labels. To give warning when matter typed appears at the cutting point a bell 181, set by depressing a lever 191, is made to ring after the corresponding degree of rotation of the roller 117.
Patent GB-1146510-A (GB)
Title: Industrial gear oil
Filed: 1966-07-26
Abstract: 1,146,510. Gear oil. ESSO RESEARCH & ENG. CO. 26 July, 1966 [2 Aug., 1965], No. 33630/66. Heading C5F. A substantially lead-free lubricant for industrial gears comprises a major amount of a lubricating oil base, 4 to 9% by wt of a phosphosulphurized fatty oil and 0À1 to 10% by wt. of an oil soluble detergent-dispersant. The base oil may be a synthetic or a petroleum lubricating oil. The detergent-dispersant additives may be ether polyvalent metal salts of phenols, phenol thioethers or sulphonic acids, or reaction products of high M.W. carboxylic acids and amino compounds. Preferred additives are alkoline earth metal salts of petroleum sulphonates and phospho-sulphurized sperm oil or lard oil.
Patent GB-927621-A (GB)
Title: Improvements in and relating to the registration of printing formes
Inventor: HADLEY WILLIAM ALFRED
IPC: G03F9/00
Filed: 1960-06-07
Abstract: 927,621. Printing surfaces. LINOTYPE & MACHINERY Ltd. June 6, 1961 [June 7, 1960], No. 33782/59. Class 100 (2). [Also in Group XX] Apparatus for registering a printing forme with an artist's layout or proof comprises a horizontal table 12 for supporting the forme 14, a transparent plate 13 mounted over and parallel to the table 12 for supporting the layout or proof 15, and movable in any direction in a horizontal plane between the table and plate an optical device for combining images of the forme and layout or proof. This applied device comprises an angled mirror 25 and a semireflector 20 (e.g. a titanium dioxide coated mirror) disposed at right angles to the mirror 25. The combined images are projected by lens 21 on to a screen 23, which may be of Fresnel type. Preferably the forme and layout or proof are illuminated with light of complementary colours so that lack of registration shows up as black or white fringes on screen 23. Reference has been directed by the Comptroller to Specification 899,571.
Patent GB-194425-A (GB)
Title: Improvements in or relating to devices for producing sound warning signals
IPC: G10K9/10
Filed: 1921-12-16
Abstract: 194,425. Monnot, J. F. Dec. 16, 1921. Diaphragm horns.-The motor 6 of an electric horn is slidably mounted on a bed consisting of ledges 12 on a rearwardly-extending bracket 11, and is movable towards or away from the diaphragm by means of a screw 14 engaging with the motor frame 13. A screw 16 passing throuph an elongated hole 17 clamps the motor in its adjusted position. The spindle 5 carrying the operating cam is provided at each end with cone- and-cup bearings 18 which take up longitudinal stress in both directions as well as radial stress. A cover 19 may be secured by means of a thumoscrew 20.
Patent GB-502206-A (GB)
Title: Improvements in or relating to a method of and means for humidifying air
IPC: F24D19/00
Filed: 1937-12-09
Abstract: 502,206. Moistening and disinfecting air; vaporisers. ELECTROLUX, Ltd. Dec. 9, 1937, No. 34098. Convention date, Dec. 9, 1936. [Class 55 (ii)] [Also in Croup VI] The atmosphere of rooms heated by indirect heat transfer such as by a hot-water system, is humidified by circulation of water continuously in a closed circuit over evaporating surfaces contacted by the atmosphere and heated by direct conduction from a source of heat. On the face of' a radiator 12 facing a room is arranged an evaporating plate 13 with at least its upper part in tight contact with the radiator, its upper end being bent round to form a tube 14 with a longitudinal slit packed with a rubber or other strip 16 having indentations providing shallow channels for water. At the base of the radiator an open container 20 surmounts a heat-insulated container 21 with which it communicates through a non-return valve 24 in a tube 23 and from which extends a tube 15 opening into a perforated conduit 18 within the tube 14. On one side of a wall 25 in tank 21, an electric heater 26 creates a steam pressure which forces water up into tube 14 until the mouth of tube 15 is uncovered, whereupon steam escapes and the fall in pressure enables water from tank 21 to replenish the boiler. The evaporating surfaces may be grooved or roughened or of a porous nature and, kept permanently moist, function as an air cleaner. The liquid may include perfume or disinfectants such as boracic acid, thymol, alpha- or #- naphthol, chloramine, &c. A manually operated compressed air pump or an electrically operated pump may be'used to lift the water from tank 20. Another modification provides an inverted U-tube with its bend higher than the upper part of tube 16 as the connection between tanks 20, 21. The Specification as open to inspection under Sect. 91 comprises also an embodiment utilizing a siphon with or without a pump for wetting the evaporating surface. This subject-matter does not appear in the, Specification as accepted.
Patent GB-1400067-A (GB)
Title: Tio2 slurries
IPC: C09D17/00
Filed: 1972-07-20
Abstract: 1400067 TiO 2  slurry AMERICAN CYANAMID CO 20 July 1972 [21 July 1971] 34104/72 Heading C1N A TiO 2  slurry with a solids content of at least 60% by weight is obtained by flocculating an aqueous slurry of anhydrous TiO 2  of particle size not in excess of 4 microns with a flocculating agent, dewatering the flocculated pigment to produce a filter cake having a solids content of 60 to 80% by weight, and reslurrying this filter cake by means of a dispersing agent to obtain the desired aqueous pigment slurry. The initial slurry of a solids content of, e.g. 20% may be obtained by wet grinding the crude pigment followed by hydro classifying or screening to remove particles greater than 4 microns. The flocculating agent may be MgSO 4 , MgCl 2 , BaCl 2 , H 2 SO 4 , HCl or HAc. The flocculated pigment may be washed suitably between initial and final dewaterings. The dispersing agent may be 2-amino-2-methyl-1-propanol, triethanolamine, sorbitol, mannitol or a sodium polymeric carboxylate. The reslurrying is preferably effected without further addition of water. The TiO 2  may be rutile or anastase and may contain Al 2 O 3 , MgO or ZnO.
Patent GB-1319696-A (GB)
Title: Preparation of polyisocyanates
IPC: C08G18/79
Filed: 1971-07-21
Abstract: 1319696 Polyisocyanates MARATHON OIL CO 21 July 1971 [24 Sept 1970] 34226/71 Heading C2C In a process for the preparation of a polyisocyanate comprising reacting an organic halide with a metal cyanate in an inert dipolar aprotic solvent having a high dielectric solvent in the presence of a metal bromide or iodide, isocyanurate ring formation is reduced by adding to the reaction medium a selective solvent immiscible with the reaction medium and having a Kauri-Butanol number of from 80 to 160 to precipitate substantially all the inorganic salts from the reaction medium. The selective solvent is preferably xylene, toluene, tetralin and/or benzene.
Patent GB-1445432-A (GB)
Title: Method of producing homogeneously doped regions in semiconductor components
IPC: H01L29/74
Filed: 1973-07-18
Abstract: 1445432 Semiconductor device manufacture LICENTIA PATENT - VERWALTUNGS GmbH 18 July 1973 [14 Sept 1972] 34236/73 Heading H1K In the manufacture of a semiconductor device which is to have a weakly doped internal region, diffusions are made to determine the final position of junctions in the device, and then a low temperature diffusion of a fast moving dopant of low solid solubility is effected to reach the internal region and swamp impurity fluctuations present in the undoped or weakly doped starting material. The dopant may or may not change the conductivity type of the internal region. As shown, a silicon body with background boron doping is subjected to gallium diffusion to produce a p-type region 2, phosphorus diffusion to produce n-type regions 4, 5 and an optional gettering step to increase minority carrier lifetime, and to a final diffusion stage involving the use of sulphur to convert the inner region 6 to n-type conductivity. Typically the background boron doping may be c. 3.10<SP>12</SP> atoms.cm<SP>-3</SP> and with diffusion at 1000C for 8 hours the internal sulphur concentration may be 3.10<SP>13</SP> atoms.cm<SP>-3</SP> rising to 1.3.10<SP>14</SP> at the surface. This low sulphur concentration has little effect on the conductivity of heavily doped regions 2, 4, 5 or on the minority carrier lifetime. Zinc may be used to convert phosphorus-doped silicon to p-type or to swamp the effect of background boron doping. Silicon and tellurium are also stated to be fast moving dopants with low solubility in silicon and germanium.