baber/WOPTO huggingface dataset:
Patent GB-1001620-A (GB)
Title: A process for the production of an oxide coating on a substantially monocrystalline body of semi-conductor material
IPC: H01L21/00
Filed: 1962-11-19
Abstract: A semi-conductor body is provided with an oxide coating by heating to 250-370  DEG C. in an atmosphere containing water vapour and the vapour of a substance which, at said temperature, at least partially volatilizes and yields hydrogen ions or alkali ions.  Suitable alkali-ions may be provided by alkali metal salts, e.g. sodium acetate, sodium iodide or chloride, disodium hydrogen phosphate and sodium arsenite.  Other suitable compounds include orthophosphoric acid and sulphuric acid.  In the embodiment silicon wafers are sealed in a quartz tube containing water and sodium chloride and the tube is heated to 320  DEG C. for 16 hours producing an oxide coating on the silicon.  Germanium may be used instead of silicon.ALSO:A semi-conductor body is provided with an oxide coating by heating to 250-370 DEG  C. in an atmosphere containing water vapour and the vapour of a substance which, at said temperature, at least partially volatilizes and yields hydrogen ions or alkali ions.  Suitable alkali-ions may be provided by alkali metal salts, e.g. sodium acetate, sodium iodide or chloride, disodium hydrogen phosphate and sodium arsenite. Other suitable compounds include orthophosphoric acid and sulphuric acid.  In the embodiment silicon wafers are sealed in a quartz tube containing water and sodium chloride and the tube is heated to 320 DEG  C. for 16 hours producing an oxide coating on the silicon.  Germanium may be used instead of silicon.
Patent GB-1526369-A (GB)
Title: Elevator system control apparatus
IPC: B66B1/28
Filed: 1976-10-21
Abstract: 1526369 Elevator control system HITACHI Ltd 21 Oct 1976 [24 Oct 1975] 43749/76 Heading G3N An elevator system controls the start of cage movement to prevent undue cage jump. The cage and counterweight are slung over a sheave driven by a motor and a detector finds the unbalanced torque due to the difference between a torque applied to the motor by the cage and a torque applied to the motor by the counterweight. A speed command generator determines the desired cage speed and an acceleration command device, shown in the upper part of Fig. 8, generates a cage acceleration command. A compensation signal generator, shown in the lower half of Fig. 8, produces an output, in accordance with the detected unbalance torque, before cage start. The acceleration command is combined with the compensation signal so as to increase, at cage acceleration, the input to the torque control at a rate smaller than the maximum rate of increase in the acceleration command.
Patent GB-1528346-A (GB)
Title: Coloured copolyesters
IPC: C09B48/00
Filed: 1976-10-22
Abstract: 1528346 Coloured polyesters PRODUITS CHIMIQUES UGINE KUHLMANN 22 Oct 1976 [23 Oct 1975] 43870/76 Heading C3R Polyesters are coloured by incorporating into the polyester chain a dyestuff structure of the formula in which X is hydrogen or hydroxy, X<SP>1</SP> is halogen, Y is alkoxy, Z 1  is hydrogen, halogen, alkyl or alkoxy and Z 2  is hydrogen or acylamino. The dyestuff may be a diol or a diacid or diester. The Examples describe preparing polyethylene terephthalate and polyethylene adipate in the presence of one or more of the above naphthalimide, naphthoylenebenzimidazole, quinacridene or dioxazine dyestuffs.
Patent GB-1347157-A (GB)
Title: Door structure of a vehicle body
IPC: B60B19/00
Filed: 1971-09-28
Abstract: 1347157 Vehicle bodies; doors NISSAN MOTOR CO Ltd 28 Sept 1971 [24 Dec 1970] 45091/71 Headings B7B and B7J The door 16 of a vehicle is hinged to a door pillar (not shown) and comprises a groove 18a along its upper edge and a tongue 21a along its lower edge which respectively engage, when the door is closed, with a tongue 12a in the header structure 12 and a groove 13a in the sill 13 of the vehicle body to resist stretching and inward buckling under a sideways force. In modifications, the tongues and grooves may swop locations; they may be formed in the door pillars and vertical edges of the door only or they may be formed all around the door and doorway. A resilient member 18b, 13b may be disposed between the tongues and grooves to absorb mechanical shocks and to seal against water entry.
Patent GB-1497127-A (GB)
Title: Voltage doubler for alternating voltages
IPC: H03D1/00
Filed: 1975-10-31
Abstract: 1497127 Voltage doubling circuits SGS-ATES COMPONENTI ELETTRONICI SpA 31 Oct 1975 [31 Oct 1974] 45556/75 Heading H3T In a voltage doubler an alternating voltage G is fed to a series circuit of a first capacitor C D , a diode D R  and a second capacitor C R  connected across the source G. A further path is connected across the junction of capacitor C D  and diode D R  and consists of a second diode, preferably formed by the base/emitter path of transistor T1 and at least one further diode Dl, D2 connected in series opposition with the second diode. The second and further diodes are forward biased, e.g. from a source + Vcc. As described, the further diode Dl and the second diode formed by the base/emitter path of T1 eliminate the threshold voltage of the diode normally connected between point A and ground. Diode D2 tends to eliminate the threshold voltage of diode D R . A further bias source may be connected in series with D2 so as to compensate for any threshold voltages inthe load L.
Patent GB-973768-A (GB)
Title: The joining together of semi-conductor materials
Inventor: MADDAMS WALTER JAMES
IPC: H01L21/18
Filed: 1962-12-03
Abstract: 973,768. Casting composite articles. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Oct. 21, 1963 [Dec. 3, 1962], No. 45637/62. Heading B3F. [Also in Division H1] A method of joining together the ends of two rods of semi-conductor material, such as lead telluride and germanium telluride, having different melting points, comprises positioning the ends of the rods in a mould, heating to a temperature between the melting points of the two materials and infeeding the rod of lower melting point to form a pool of material which solidifies around the ends of the two rods. To effect this method a mould cavity I is formed in a block 2 of refractory material and a cover 3 is positioned on the surface of the block. The cover 3 receives the rods 6 and 7 in blind openings 5 and 4, respectively, located parallel to each other and at a predetermined distance apart. The rod 6 is of lower melting point than rod 7 and extends into the cavity 1. When the mould is heated the extended portion of rod 6 melts to form a molten pool and the cover moves into a position wherein the rod axes are vertical and both ends are immersed in the pool which solidifies with the rods in this position. The molten pool may also be formed by infeeding the rod of lower melting point.
Patent GB-1366747-A (GB)
Title: Twocomponent yarn
IPC: D02G3/36
Filed: 1972-10-04
Abstract: 1366747 Two component yarns OLBO TEXTILWERKE GmbH 4 Oct 1972 [4 Oct 1971] 45739/72 Heading D1W A two component yarn comprises a first component 2 consisting of a continuous yarn deformable plastically and a second component 3 consisting of staple fibres, the fibres of the second component being adapted to slip relative to one another if, in use, the yarn undergoes plastic elongation. Each of the components 2 and 3 may be in the form of a yarn, the two components being twisted together. In a preferred embodiment the staple fibres are spun around the continuous .yarn. The first component is preferably capable of elongation of at least 60% with a tensile strength of 200 grams. The continuous yarn is preferably of nylon or poylester, and the staple fibres of cotton, rayon, nylon or polyester. The yarn may be made into woven or plaited materials or non-woven materials of parallel strands.
Patent GB-1210272-A (GB)
Title: Apparatus and method for measuring the properties of polarized light
IPC: G02B27/28
Filed: 1968-09-26
Abstract: 1,210,272. Investigating polarized light. ETAT FRANCAIS, REPRESENTED BY THE MINIST’RE DES ARM•ES, DELEGATION MINISTERIELLE POUR L'ARMEMENT, DIRECTION TECHNIQUE DES CONSTRUCTIONS NAVALES. Sept.26, 1968 [Sept.28, 1967], No.45869/68. Heading G1A. In a method and apparatus for determining the phase retardation of the component beams of polarized light and their spacial orientation wherein the light is applied to a photo-multiplier through a rotating analyser, A.C. and D.C. components in the photo-multiplier output are separated, the D.C. component is fed back to maintain the photomultiplier output constant, and the phase difference between the A.C. and a reference signal from the rotating analyzer is measured together with the amplitude of the A.C., the former being a measure of the spacial orientation and the latter of the phase retardation. The output of photo-multiplier 30, Fig. 4 is separated by a filter bank 2 and the D.C. on line II after comparison with a reference voltage in a comparator 4 is used to control the photomultiplier high voltage generator 6 and may be applied to a ratiometer 7' to produce with the rectified A.C. a direct reading of ellipticity in a meter 11. The phase of the A. C. is compared in a comparator 7 with a reference A.C. produced in a unit 9 by light passing through the rotating analyzer and falling on a photo-cell. A mathematical analysis is given and the use of the apparatus in conjunctionwith a laser source providing circularly polarized monochromatic light in two or three dimensional photo-elasticity investigations is referred to. To determine the proper direction of polarization a swivelling quarter wave plate may be placed between the emerging light and the rotating analyzer and the phase of the A.C. indicates the sense of polarization.
Patent GB-1091048-A (GB)
Title: Shrinkage tube for packages of synthetic yarn or filament
IPC: D04B9/00
Filed: 1964-11-12
Abstract: 1,091,048. Package tube. J. JUNGBECKER. Nov. 12, 1964 [Nov. 22, 1963], No. 46127/64. Heading B8M. [Also in Division D1] A tube on which synthetic filament and yarns may be wound to receive a treatment causing them to shrink is so constructed that it contracts with the filament or yarn. The treatment may comprise a heat treatment or a wet treatment such as dyeing. The tube which is of a plastics material comprises (see Fig. 1) jacket sections b separated by slots c and joined by connections e.g. thin-walled circular channels d (see Fig. 7, not shown) such that on shrinkage the slots close and allow the tube to contract. As shown perforations may be formed in the tube if it is to be used for a wet treatment. The connecting channels d may alternatively have V, W, or dovetailed sections projecting inwardly of the tube. Additionally (Fig. 13, not shown) the channel may lie wholly within the slot c. The channel may, as shown in Fig. 1, extend the full length of the tube or may (see Figs. 15-26, not shown) terminate short of the ends. In these latter cases apertures are preferably formed at the ends of the channel; in addition a thin-walled groove may separate the end portions of the tube from the channelled area so that the contraction of the channelled area does not affect the end portions. The end portions are preferably formed with the diameter of the contracted channelled portion. The tubes may be formed with projections and/ or recesses to hold the yarn thereon and a circular groove may be formed at one or both ends to receive a bunching.
Patent GB-1484969-A (GB)
Title: Rotary spray cleaner for circular dies
IPC: B05B15/68
Filed: 1975-11-13
Abstract: 1484969 Rotary spray-producers CATERPILLAR TRACTOR CO 13 Nov 1975 [24 March 1975] 46889/75 Heading B2F A self-rotary sprayer for cleaning circular dies 14A, 14B comprises a pair of rotary unions 18A, 18B each including a base portion 20, a cylinder portion 22 extending from the base portion, and a rotor (24), Figures 2 and 3 (not shown), rotatably mounted on the cylinder portion and including a fluid pathway therethrough, the unions being mounted with their base portions in adjacent back-to-back relationship; two pairs of pipes, each pair 28 carried by, and communicating with the fluid pathway of, a respective one of the rotors, and each of the pipes terminating, in a respective nozzle; each of the unions having an inlet passage communicating with the fluid pathway of the respective rotor; means 46 coupled to each union for supplying a pressurized gas to each of the inlet passages; means 54 coupled to each union for supplying a pressurized liquid to each of the inlet passages; and means coupled to the means for supplying gas out to the means for supplying liquid for preventing simultaneous supply of gas and liquid. The means 46 for supplying pressurized gas, e.g. air, comprises a supply pump (not shown) connected via a solenoid-operated valve 48 and pipes 50, 50A, 50B to the passages. The means 54 for supplying pressurized liquid, e.g. zinc stearate, tetrafluoroethylene or emulsified polyethylene, comprises a liquid pump connected via a solenoid-operated valve 56 and lines 60A, 60B to the passages. The means for preventing simultaneous supply of gas and liquid to the passages comprises electrical circuits connected to the solenoid valves 48 and 56, each circuit being separately activated by contacts on a timing disc, which disc is connected to a press 15 for the dies 14A, 14B, so that air or liquid may be supplied for a certain number of cycles of the press. The sprayer is also provided with means for moving the unions between the dies and back from the dies comprising a piston 79, in a cylinder 80, connected to the unions and being controlled pneumatically and in timed sequence with the operation of the press. The device is for use in moulds for thermosetting plastics compositions and heatcurable rubbers.
Patent GB-1020873-A (GB)
Title: Dry polymerisation of ª‡-olefines
Inventor: STEDEFEDER JOACHIM
IPC: C08F110/06
Filed: 1962-12-17
Abstract: Polypropylene of high isotactic content, or copolymers of propylene with ethylene, butene-1, or 4-methyl pentene-1, in the form of finely granular dry products are obtained by polymerizing propylene alone, or admixed with one of the above monomers, in the presence of finely granulated propylene polymers, a Ziegler-type catalyst, and an ether or amine selected from polyfunctional ethers, amines, aminoethers, and/or amino-ketones, and, if desired, an inert diluent in such an amount that the desired final product is obtained.  During the reaction the mixture is moved mechanically. The polymerization may also be effected in the presence of regulators such as zinc diethyl or zinc dipropyl, or hydrogen.  Specified polyfunctional compounds are N-methyl-dipropylene-triamine, N,N1 - tetramethyl ­ ethylene-diamine, piperazine, hexamethylenetetramine, N - (3 - aminopropyl) - pyrrolidone, benzidine, N,N1 - tetramethylbenzidene, 3 - aminopyrimidine, pyrazine, diethylene-, and triethylene-, and propylene-, and butylene-glycol diethyl ether, diethylene glycol ethyl-butyl ether, 1,2-dimethoxybenzene, 1,4 - diethoxybenzene, oxazole, 4 - ethoxy - pyridine, 3 - methoxypropylamine, ethylene and diethylene glycol ethylaminopropyl ether, beta-phenoxyethylaniline, 4 - ethoxyethylaniline, 3 - methoxypropylamine, 3 - butoxypropylamine, 1 - aminopentanone - (4), 1 - diethylaminopentanone - (4), 1 - cyclohexylaminohexanone - (5), p - aminobenzophenone, 1 - dibenzylaminopentanone-(4), and 3-acetyl-pyridine.  The Specification mentions many Ziegler-type catalyst.  The catalyst exemplified is titanium trichloride and triethylaluminium. The catalyst residues are removed from the polymers by conventional techniques, e.g. treatment with aqueous-alcoholic hydrochloric acid.
Patent GB-1008399-A (GB)
Title: Drilling underwater wells
IPC: H05K7/14
Filed: 1962-06-20
Abstract: 1,008,399. Boring earth; wells; floating offshore structure. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. June 20, 1962 [June 22, 1961], No. 47425/64. Divided out of 1,008,398. Headings E1F and E1H. Offshore structure for carrying out operations at an underwater well comprises a main operating deck 21 and an auxiliary operating deck 23 below the deck 21, each of the decks supporting pipe-engaging means 20, 22 in vertical alignment with each other. The deck 21 supports the rotary table 20 and pipe elevators 19 supported by a derrick 16 both table and elevators engaging drill pipe 24. The means 22 comprises a slip and spider assembly for supporting casing 25. The structure shown is a barge moored by lines 14, 15 and having a central well 26. In modifications the well may be replaced by a side slot, and the barge may be replaced by a fixed platform or by a temporarily fixed but normally floatable platform.
Patent GB-1248057-A (GB)
Title: Improvements in or relating to brake linings or clutch linings
IPC: C23C4/134
Filed: 1968-10-07
Abstract: 1,248,057. Brake and clutch linings. CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE. 7 Oct., 1968 [11 Oct., 1967], No. 47470/68. Headings F2C and F2E. A brake lining or a clutch lining has a friction surface presented by a plasma deposited layer of a material crystallizing in the hexagonal system. The lattic relation c/a is of the order of 1À633 where c is the distance separating two adjacent atoms from one of the two hexagonal planes to the other and a is the distance separating the adjacent atoms in the same hexagonal plane. Metals having a c/a value approximating to 1À633 are cobalt, magnesium, neodymium, titanium, and yttrium. They can be in the pure state or alloyed with one or several of the others. They may also be alloyed with one or several metals, oxides or carbides which have not an hexagonal structure, to an extent where nevertheless the hexagonal structure of the initial metal is preserved in the alloys formed. Examples of non-hexagonal metals are chromium, lanthanum, molybdenum, rhenium, samarium, tungsten, aluminium, copper, iron, nickel, niobium. Examples of the carbides are TaC, TiC, MoC, WC, Cr 3 C 2 . Cr 2 O 3  is representative of the oxides. Cobalt alloys are also specified. Solid lubricant such as graphite, MoS 2 , CaF, BaF, NbS 2 , WS 2  may be incorporated. The linings are preferably made of a ferromagnetic material which is porous, preferably microporous, for use in electromagnetic brakes or clutches.
Patent GB-1131411-A (GB)
Title: Processing control system
IPC: A47F10/00
Filed: 1965-11-09
Abstract: 1,131,411. Selective signalling. FAIRBANKS MORSE Inc. 9 Nov., 1965 [11 Feb., 1965], No. 47508/65. Heading G4H. The height and width of articles on a conveyer are measured by the numbers of photocells in two banks which are obscured as each article passes, and the length of each article is measured by determining the time taken for it to pass the photo-cells. These three factors are multiplied together to give an approximate value of the actual volume. The maximum values of the article dimensions are also stored and multiplied to give the " cubed " volume. A weighing machine on the conveyer determines the weight of each article. The actual volume, " cubed " volume and weight are supplied to an accumulator which may be arranged to stop the conveyer when a predetermined value of volume, weight or number of articles has been reached, e.g. corresponding to the capacity of an aircraft freight compartment. The actual and " cubed " volumes are also multiplied by a constant to obtain an " equivalent weight " value which is compared with the actual weight, the largest of the two values being passed on to a computer which also receives a manual or record input giving details of destination &c. for each article concerned, whereby the cost of transportation may be computed and recorded.
Patent GB-1332512-A (GB)
Title: Sighting device for use on firearms
IPC: F41G1/14
Filed: 1970-10-07
Abstract: 1332512 Sights for firearms N I A RUDER 7 Oct 1970 [13 Oct 1969] 47595/70 Heading F3C A sighting device for a firearm comprises a housing 14 and means 10 for supporting the housing 14. The housing 14 is provided with a light unit 17 associated with an apertured member 18 so as to produce a source of a light and a convergent lens 25 for forming, at infinity, a virtual image of the light source. The means for supporting the housing comprises a tube having two adjustable housing supports 29 disposed perpendicularly to each other and a third resilient support (Fig. 2, not shown). Thehousing 14 is mounted in the tube 10 at the objective end thereof by a part spherical mounting 15, 22. The tube 10 has at its end which partly surrounds the light unit a light permeable dome 13. The light unit 17 comprises an element which, from ambient light, produces light having a limited range of wavelengths. A nuclear light source may be incorporated in the housing either surrounding the aperture (Fig. 5, not shown) or mounted in a hood and the light therefrom being reflected by the element behind the aperture (Fig. 6, not shown).
Patent GB-1092878-A (GB)
Title: Improvements relating to lawn mowers
Inventor: GOLDINGAY ERNEST EDWARDS
IPC: A01D34/42
Filed: 1965-11-10
Abstract: 1,092,878. Lawn mowers. H. C. WEBB & CO. Ltd. Nov. 9, 1966 [NOV. 10, 1965], No. 47603/65. Heading A1F. The grass box of a lawn mower is detachably mounted on the mower body by means of lugs or portions of rigid strip form extending laterally from one part engaging in open-ended slots in the other part, the slots being substantially vertical and having a restricted entry. As described lugs 21 are provided on the grass box 10 and engage in slots 24 formed in the side plates 22 of the mower, the slots having a narrow mouth 27 and a substantially dove-tail shaped portion 29. The bottom of the grass box is supported on a cross-bar 31 extending between the side plates 22.
Patent GB-477236-A (GB)
IPC: G03C5/04
Abstract: 477,236. Chemical reversal processes for lenticular films. COMPAGNIE FRANCAISE POUR L'EXPLOITATION DES PROCEDES THOMSON - HOUSTON. Jan. 30, 1937, No. 2784. Convention date, Feb. 20, 1936. Drawings to Specification. [Class 98 (ii)] In applying a process of chemical reversal involving a second exposure to lenticular colour or stereoscopic films, the partial images are illuminated through the lenticles during the second exposure by light sources, the positions, intensities, dimensions, and wavelengths of which are varied to modify the characteristics of the resulting images. As light sources separate lamps or opal discs illuminated from behind may be used. The sources may be arranged at positions corresponding to those of the images of the colour filter strips in taking or in projection or in modified positions to correct for an insufficient aperture during taking. The width of the sources may be varied to adjust the widths of the images, the wavelengths may be altered to vary the contrast, and the intensity of the sources or time of exposure may be adjusted to alter the relative densities of the images. The emulsion may be dyed and a light used which is absorbed by the dyestuff so that the penetration of the light is controlled.
Patent GB-1115040-A (GB)
Title: High frequency power transistor
IPC: H01L29/00
Filed: 1965-11-12
Abstract: 1,115,040. Transistors. CSF-COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. 12 Nov., 1965 [24 Nov., 1964], No. 48241/65. Heading H1K. A high frequency power transistor comprises a heterojunction emitter. The materials of the base and emitter regions have substantially identical lattice dimensions and the dopants in the base and emitter regions are those with low diffusion coefficients in the material of the emitter and base regions respectively so that little interdiffusion occurs during manufacture. A typical device is made by epitaxially growing boron-doped P-type silicon on a heavily doped N substrate to form the base zone and then epitaxially growing N-type germanium on said zone, reducing it to the desired configuration for the emitter by etching through a mask using Javel water, and diffusing in arsenic to suitably dope it. Another suitable combination of materials for the base and emitter zones is gallium phosphide and silicon..