baber/WOPTO huggingface dataset:
Patent GB-1363515-A (GB)
Title: Manufacture of semiconductor devices
IPC: H01L21/74
Filed: 1971-07-07
Abstract: 1363515 Semi-conductor devices PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 7 July 1971 [10 July 1970] 31843/71 Heading H1K Highly doped P+ (or N<SP>+</SP>) type zones 52 are provided in a P-(N) type Si substrate 8 to interrupt surface channels which would otherwise interconnect islands 9, 12, 16 defined in an N-(P) type epitaxial Si layer 1 by a pattern of silicon oxide 5 which penetrates completely through the layer 1 and is formed by thermal oxidation thereof. The zones 52, which may be joined in a grid-like configuration beneath but overlapped by the oxide 5, are preferably provided by predoping the substrate 8 before deposition of the layer 1, but they may also be provided by redistribution during the oxidation process of impurities doped locally into the deposited epitaxial layer 1; e.g. into recesses formed partly through the layer 1 using the same nitride or oxide/nitride mask as that employed to define the lateral extent of the oxidation. Such recesses may be entirely etched, or may be formed by locally oxidizing the layer 1 and removing the oxide. The island 9 shown contains an NPN bipolar transistor, optionally underlaid by an N<SP>+</SP> buried layer 30, and other islands may contain diodes, resistors or capacitors. The substrate 8 may itself comprise a P-type layer 51 on an N-type body 54.
Patent GB-1253723-A (GB)
Title: Flow system for feeding stock to the wet end of a paper-making machine
Inventor: MEANS JOHN ARTHUR
IPC: D21F1/00
Filed: 1969-01-31
Abstract: 1,253,723. Papermaking. TIME Inc. 31 Jan., 1969 [31 Jan., 1968], No. 31941/69. Divided out of 1,253,722. Heading D2A.  A headbox comprises an inlet header, 12; a first flat section, 22, connected to the downstream end of the inlet header, and having an unobstructed flow channel in the shape of a rectangular parallelepiped; a plurality of hoses, 36, connected in a transverse row to the downstream end of said flat section; a plurality of expansion pipes, 40, connected in a transverse row respectively to the ends of the hoses, and each having a flow channel of increasing cross-section in the direction of stock flow, 60; a plurality of pipes, 48, of changing crosssection connected in a transverse row respectively to the downstream ends of the expansion pipes, the pipes of changing cross-section having circular cross-section at their upstream ends, and rectangular cross-section at its downstream end; a second flat section, 58, connected to the downstream ends of the pipes of changing cross-section, and having an unobstructed flow channel in the shape of a rectangular parallelopiped, and a nozzle connected to the downstream end of the second flat section. The nozzle of Specification 1,253,722 may be used.
Patent GB-669691-A (GB)
Title: Improvements in or relating to cathode ray tube apparatus
IPC: G01R13/30
Filed: 1949-12-13
Abstract: 669,691. Cathode - ray oscillographs. CINEMA - TELEVISION, Ltd., and SOWERBY, J. M. Dec. 13, 1950 [Dec. 13, 1949], No. 31969/49. Class 37. Two cathode-ray tubes are arranged so that one has its beam deflected in accordance with a phenomenon to be investigated and the other has its beam deflected under the control of an observer, optical means being provided for superimposing the traces appearing upon the two screens. A cathode-ray tube 1, Fig. 1, has potentials corresponding to a phenomenon to be investigated applied to it and produces a trace upon the screen of the tube which is viewed by an observer 2 through a halfsilvered mirror 3. A second tube 4 is arranged so that its screen may also be viewed by the observer 2 by reflection from the mirror 3. The beam of the tube 4 is controlled in position in one direction by means of ganged potentiometers 5, 6 which increase the potential of one deflecting plate as that of the other is reduced. These potentiometers are fed from a source 7 of variable voltage and are controlled from a calibrated dial. A signal of known amplitude is applied to the tube 1 and the potential of the source 7 is adjusted so that movement of the dial controlling the potentiometers 5, 6 required to move the spot on the tube 4 a corresponding distance is such as to indicate the signal amplitude. The signal is then applied to the tube 1 and the potentials at different parts of the trace may be determined by bringing the spot on tube 4 into coincidence and reading the potential from the dial. A similar calibrated control may be employed to give readings on the time axis, or alternatively a simple time base may be applied. The screens on the two tubes may fluoresce in different colours in order to cause the spots on the two tubes to appear differently coloured. Alternatively colour filters may be employed or the member 3 may be a dichroic filter. Fig. 2 shows an arrangement in which tubes of different diameters are employed. A travelling- wave cathode-ray tube 8 has a very small trace 9 produced on its screen, which trace is viewed through a low-power microscope 11 comprising an objective 12 and eye-piece 13. A partially reflecting member 14, in conjunction with an auxiliary objective 15 and mirror 16, is arranged to exhibit to an observer 10 a spot produced on the screen of a normal cathode-ray tube 17, which spot is controlled as shown in relation to the tube 4, Fig. 1. The member 14 may permit the passage of a greater proportion of the light from the tube 8 than from the tube 17. The optical systems are such that a larger deflection of the spot on the tube 17 appears equivalent to a very small deflection on the tube 8. To this end the objective 15 may be a reducing lens.
Patent GB-324944-A (GB)
Title: Improvements in and relating to apparatus for recording differences & electrical potential set up in a living body
IPC: A61B5/0432
Filed: 1928-11-02
Abstract: 324944 Dark slides C C MASON W J STALLAN F DOGGETT and CAMBRIDGE INSTRUMENT CO Ltd 2 Nov 1928 Headings G2A AF A401 A403 A431 A474 A583 A585 A588 A626 A635 A723 and A752 Apparatus for recording the electric potentials associated with muscular contractions employs a rotary cylindrical carrier for a sensitized film or paper upon which the galvanometer deflections are recorded. The film or paper is affixed to the cylindrical carrier 27, Fig. 4, which is then inserted in the light-tight casing 28 and secured by a sliding latch 30. After the carrier 27 has been inserted in the camera 18 where it makes a friction fit on the spindle 22, the latch 30 is released and the casing 28 withdrawn by means of the handle 29 as far as the safety catch 31 will allow.
Patent GB-1198821-A (GB)
Title: Dehydrochlorination Process
IPC: C07C21/12
Filed: 1967-07-12
Abstract: 1,198,821. Dehydrochlorination. DETREX CHEMICAL INDUSTRIES Inc. 12 July, 1967 [14 July, 1966; 17 Oct., 1966; 15 May, 1967], No. 32039/67. Heading C2C. Trichlorethylene, tetrachlorethylene or a mixture thereof is obtained by dehydrochlorinating 1,1,2,2 - tetrachloroethane, 1,1,1,2- tetrachloroethane, pentachloroethane or a mixture of two or more thereof at 150 to 300 C., in the liquid phase, under superatmospheric pressure and in the presence of activated carbon. The process may be operated as a continuous or batch process and part of the activated carbon may be removed and replaced by fresh activated carbon without interruption of the process. The tetra- or penta-chloroethane starting material may be obtained by (a) reacting at 0 to 250 C. chlorine and ethylene in a liquid body of chlorethanes having an average of at least 2-5 chlorine atoms per molecule with a chlorine to ethylene molar ratio of at least 3 : 1, and (b) removing at least a portion of the liquid body and separating it into a chlorethane product fraction containing a predominant amount of chlorethane having at least 4 chlorine atoms per molecule and a second chlorethane fraction having an average chlorine content lower than that. of the first fraction, the molar ratio of the first fraction to the second fraction being from 1 : 0À1 to 1 : 30. A portion of the second fraction may be recycled to the chlorination zone (see Application No. 12432/70, Serial No. 1,198,822).
Patent GB-193953-A (GB)
Title: Improvements in or relating to engines operating with internal combustion and steam
IPC: F02G3/00
Filed: 1921-11-30
Abstract: 193,953. Ricardo, H. R. Nov. 30, 1921. Motor power plant.-In an engine operating with internal combustion in one or more cylinders and with steam in one or more other cylinders, or in the opposite ends of the same cylinders, the supply of steam is controlled automatically in accordance with the weight per cycle of the combustible charge entering each internalcombustion cylinder. The engine may comprise two outer cylinders working with internal combustion and a central steam cylinder, the supply of steam to which is controlled by a valve such as A placed in the steam pipe B and connected to a diaphragm C, one side of which is connected to the induction pipe of the combustible mixture by a pipe E, so that the steam is cut off when the throttle in the induction pipe is closed. The movement of the valve A may also be made dependent on the steam pressure by allowing this to act on differential pistons H, J or on a second diaphragm. A dash-pot may be provided in connection with the diaphragm C to damp out pulsations. Hand control of the steam valve A may also be provided by means of a lever M. The heat from an oil jacket surrounding the cylinders, and from the exhaust, may be used in generating steam.
Patent GB-1019224-A (GB)
Title: Photographic silver halide emulsions and sensitive materials prepared therewith
IPC: G03C5/38
Filed: 1962-08-27
Abstract: 1,019,224. Photographic materials. EASTMAN KODAK CO. Aug. 27, 1962 [Aug. 25,1961], No. 32149/65. Divided out of 1, 019, 222. Heading G2C. A silver halide emulsion contains as an anti-foggant and a sensitiser an isothiourea derivative of formula from 0. 001 gram to 10 grams per mole of silver halide wherein R 3  to R 7  are hydrogen, alkyl, aryl or alkyl substituted aryl radical, R 1  and R 2  are hydrogen, alkyl, aryl or alkyl substituted aryl radical or an aryl radical, n is at least 1 and Y is amino, substituted amino, sulpho, hydroxyl, morpholino, or except when n is 1 and R 6  and R 7  are hydrogen or carboxyl. Alternatively, the isothiourea derivative may be used as a watersoluble salt. Specified derivatives are those wherein R 1  and R 2  are hydrogen, acetyl, ethyl or phenyl, R 3  to R 7  are hydrogen, phenyl or methyl, n is 1 to 4 and Y is hydroxyl, amino, carboxyl or sulphonyl. Other sensitisers such as poly (thiodiethylene succinate); 1, 10 dithia 4, 4, 13, 16- tetraoxacylcooctadecane or 14, 16-diazo-4, 7- dioxa 3,17-dioxo-1,10-dithiacyclononadecane.
Patent GB-512380-A (GB)
Title: Improvements relating to the physical conditioning of grain preparatory to milling
IPC: B02B1/08
Filed: 1938-11-07
Abstract: 512,380. Conditioning grain. WESSANEN'S KONINKLIJKE FABRIEKEN N.V., and MIAG MUHLENBAU UND INDUSTRIE AKT.-GES. Nov. 7, 1938, No. 32293. Convention date, Nov. 6, 1937. [Class 58] Grain having been wetted with water and heated passes into a container 1 wherein it is led through a device 2, in which it is again wetted with water, to a conditioner 4 where it is heated for about 15 to 20 minutes to cause the husks to absorb water without the water affecting the endosperm. The heating is preferably arranged so that there is a quick rise in the temperature of the grain of from 25 to 50 degrees centrigade. The grain then passes through a brushing machine 6 to the break rolls 7.
Patent GB-1317946-A (GB)
Title: Membranous and sheet materials
IPC: C08L1/00
Filed: 1970-07-03
Abstract: 1317946 Surgical dressings ANNE CO Ltd 3 July 1970 [3 July 1969] 32443/70 Heading A5R [Also in Division B5] Disposible articles such as nappies, condoms, and sanitary towels are prepared from a membrane of methyl, or ethyl, hydroxyethyl cellulose for preventing the passage of blood and other protein-containing body fluids in use. The membrane is itself dispersible in water and conforms to the standards of liquid tightness laid down by the Japanese Welfare Ministry and defined in the Specification. The membrane may also contain other materials, those exemplified being dextrin, hydroxypropyl starch, rubber latex and polyvinyl alcohol. An absorbent such as crepe may be affixed to the membrane. The membranes are soft, flexible, and emit no sound when flexed.
Patent GB-486191-A (GB)
Title: Improvements in or relating to the control of the injection pump of diesel and like engines
IPC: F02B9/06
Filed: 1937-11-25
Abstract: 486,191. Oil engines. SOC. ANON. DES AUTOMOBILES PEUGEOT. Nov. 25, 1937, No. 32474. Convention date, Nov. 25, 1936. [Class 7 (iii)] [Also in Group XXVIII] The plunger 11 of a fuel-injection pump is operated from a cam 2, which operates the engine exhaust or admission valve. The plunger is operated through the medium of a lever 8, pivotally mounted on an eccentric portion 9 of a spindle 23, which can be oscillated by means of a crank arm 25, in order to vary the timing of injection.. As shown the arm 25 is connected by means of a link 26 to one arm of a bell-crank lever 27, the other arm of which carries the pivot 29 of a lever 30. One arm of the lever 30 can be manually adjusted by means of a Bowden wire 32, while the other arm rests on a cam 31, rotatable by means of a pressure or centrifugal governor, or by the engine accelerator.
Patent GB-521155-A (GB)
Title: Improved means for cleaning and conditioning air, gases, or other fluids
IPC: B01D46/24
Filed: 1938-11-09
Abstract: 521,155. Turbidometers. BLACKTIN, S. C. Nov. 9, 1938, No. 32479. Drawings to Specification. [Class 97 (iii)] [Also in Group XXVIII] A hollow body having a heated perforated wall, e.g., of wire gauze or wire coils, separates dust from gases passing through it by the innate repelling effect of the heated surface. A hollow gauge cylinder heated by radiation from an electrically heated axial wire may be used.
Patent GB-924628-A (GB)
Title: Process for the continuous production of propylene oxide
IPC: C07D301/08
Filed: 1959-09-24
Abstract: Propylene oxide is produced in a continuous process by the reaction of propylene or propylene-propane mixtures with oxygen at elevated temperature and pressure, the products of oxidation being removed and the unreacted hydrocarbons being recycled after replacing the hydrocarbons used up, wherein the carbon monoxide which is formed as a by-product is removed from the recycled hydrocarbons by ensuring that the oxygen content of the residual gas is such that the carbon monoxide formed can be oxidised to carbon dioxide, conducting this gas mixture at an elevated temperature, which is below the temperature necessary for the oxidation of propylene, e.g. 140 DEG to 190 DEG C., over an oxidation catalyst, e.g. a mixture of manganese oxide and copper oxide, and removing from the gas mixture the carbon dioxide which is formed, p  for example by passing the mixture through an absorption tower in counter-current flow to potassium carbonate solution or diethanolamine.  Preferably only part of the carbon monoxide is removed in this way, between 1 to 8% by volume remaining in the recycle gas.  Specification 643,687 is referred to.
Patent GB-1107860-A (GB)
Title: Extracting low molecular weight material from polyamides
Inventor: LINGE HERMANN
IPC: C08G69/46
Filed: 1965-07-30
Abstract: <PICT:1107860/C3/1> Low molecular weight constituents are extracted from a polylactam composition by passing a solvent downward through the composition in particle form at elevated temperature.  The polymer which may be in the form of flakes or granules may be derived by polymerization of an o -amino-carboxylic acid or an amide forming derivative thereof.  Suitable solvents are those of lower S.G. than the polymer and extractible material e.g. water, MeOH, EtOH and PriOH.  The process may be carried out at 70-120 DEG  C. and may be continuous, the polymer being raised in counter-current to the falling solvent.  In Example (1) the solvent is allowed to flow down a stationary column of polycaprolactam. In Example (2) the apparatus of Fig. 2 is used. Solvent is run down the column and the polymer is raised by removing containers of treated polymer from the top of the column and replacing them by fresh ones inserted at the bottom.  In Example (3) the solvent is run down a column of polymer which is raised by supplying fresh polymer at the bottom with a screw feeder and removing treated polymer from the top.
Patent GB-190136-A (GB)
Title: Improvements in or relating to hermetically sealed vessels of sheet metal
IPC: B65D51/16
Filed: 1922-11-29
Abstract: 190,136. Sandaas, L. Dec. 12, 1921, [Convention date]. Vacuum closures; capsules and like closures.- An hermetically sealed can comprises a sheetmetal body having a glass cover with a depending flange covering the sealing joint and a radial groove through the flange, a sealing strip retaining the cover. As shown, the cover 1 abuts circumferentially against the inside of the body 2 at 3 and has a flange 4 with an annular groove 5 to receive the usual rubber packing 6 which seats on the upper flange of the body 2. The flange 4 is provided with a radial groove 8, the top of which is flush with the top of the groove 5 so that a knife &c. may be introduced through the groove 8 to prise up the cover which is held tightly against the body by the vacuum created during sterilization. A sealing strip 7 is used as an additional securing means, the strip gripping the upper flange of the body and the top of the cover, and being removed in any known manner.
Patent GB-264307-A (GB)
Title: Improvements in moulds for use in the manufacture of pottery
IPC: B28B1/28
Filed: 1925-12-28
Abstract: 264,307. Boulton, H. J., Plant, H. J., Plant, A. E., and Plant, F. S., (trading as Canning Pottery Co.), and Bourne, F. Dec. 28, 1925. Pottery, throwing and turning.-The two parts of an horizontally-divided two-part pottery mould are locked together during the jolleying operation by means of lugs or projections formed on the one-part engaging slots, openings, or cam surfaces on the other part. In the construction shown in Figs. 1 and 3, metal-faced hooks b<2> formed on the upper portion pass through slots a<1> in the lower portion and engage under projections d with a wedging action when the parts are rotated relatively. In a modified construction depending projections b<2> wedge against the camshaped curved portions of slots all in the lower part to lock the parts against relative lateral movement. The projections b<2> and the one end of each recess preferably are undercut to prevent separation of the parts by lifting. An interfitting concentric groove e and rib f prevent excessive lateral pressure on the projections due to the wedging action.
Patent GB-1432369-A (GB)
Title: Hammer drill mechanism
IPC: B25D11/10
Filed: 1972-07-13
Abstract: 1432369 Hammer drills BLACK & DECKER Ltd 18 June 1973 [13 July 1972] 32743/72 Heading B4C  A hammer drill mechanism comprises a housing 9, 9a, a rotatable spindle 1, a control member 11 and a pair of ratchet members 8, 10 which are co-operable to cause the spindle to reciprocate in the direction of its own axis. The member 10 is fast on the spindle for rotation therewith and the member 8 is fast in the housing. Rotation of the member 11 about the spindle axis causes axial movement of the member 11 from a position in which the members 8, 10 co-operate for hammer drilling, to a position in which the member 11 axially displaces the member 10 away from and out of engagement with the member 8 for pure rotary drilling. As described, the members 8, 10 are ratchets and the member 11 acts on the member 10 via a thrust bearing 12. The member 11 has a cam surface in face-to-face contact with a cam surface 14 on the housing 9 so that when the member 11 is turned by a button 17 it moves axially to disengage the ratchets 8, 10 or allow them to engage. The spindle 1 carries freely rotatable gears 2, 3 either of which can be engaged by a cam 7 to allow the other to engage a clutch pin 4 on the spindle and so drive the latter at a selected speed.
Patent GB-1464280-A (GB)
Title: Perfume dispenser
IPC: B65D83/14
Filed: 1974-07-24
Abstract: 1464280 Dispensing head for a plurality of containers G H ALTICOSALIAN 18 July 1975 [24 July 1974] 32752/74 Heading F1R A dispenser comprises a holder for a plurality of containers and a selector device which enables any one of the containers or any combination of containers to communicate through a mixing chamber with an outlet. As shown the holder 2 has recesses 7 adapted to receive sleeves 9 fitted to pressurized containers having valve stems 12 which project through holes 10. The sleeves and recesses have  interfitting lugs 9a, 7a. In the compartment 11 there is a mixing chamber 13 connected to union members 16 which each engage a valve stem 12. The chamber 13 is also connected to a single outlet nozzle 6. A push button selector 3a is mounted above the mixing chamber and is rotatable so that pegs 21 may be selectively disposed above the union members 16 and which on depression of the button engage the members 16 to open the selected valves.
Patent GB-765920-A (GB)
Title: Process for the manufacture of morphinane derivatives
Filed: 1954-11-12
Abstract: The invention comprises optically active 3-hydroxy-N-aralkylmorphinanes and their acid addition salts, and the manufacture thereof and of the corresponding N-alkyl and N-alkenyl compounds by de-etherifying an ether of 1 - (41 - hydroxybenzyl) - 1 : 2 : 3 : 4 : 5 : 7 : 8-octahydroisoquinoline, separating the product into its optical antipodes, reacting either or each antipode with an alkyl, alkenyl or aralkyl halide and heating the resulting 2-substituted derivatives with an acid (e.g. phosphoric or hydrobromic acid). In an example, the procedures of the example of Specification 765,921 are followed by heating each of the resulting optically active 2 - substituted - 1 - (41-hydroxybenzyl) - 1 : 2 : 3 : 4 : 5 : 6 : 7 : 8 : - octahydroisoquinolines (liberated from their salts by the action of aqueous ammonia) with 100 per cent phosphoric acid, yielding (-)- and (+)-N-methyl-, -propyl-, -allyl- and -benzyl-3-hydroxymorphinane and (-)-N-(b -phenylethyl)-3-hydroxymorphinane.  The D-tartrates of some of the products and the hydrobromides of others are described.  Reference is also made to sulphuric and phosphoric acid salts.  The N-benzyl compounds may be debenzylated by hydrogenolysis, e.g. in methanol in the presence of palladium - on - charcoal.  Specifications 662,830, 685,748 and 685,749 also are referred to.
Patent GB-1240840-A (GB)
Title: Improvements in or relating to the manufacture of shaped coke
IPC: C10B53/08
Filed: 1968-07-10
Abstract: 1,240,840. Shaped coke. BERGWERKSVERBAND G.m.b.H. 10 July, 1968 [25 Aug., 1967; 28 Aug., 1967], No. 32985/68. Addition to 1,122,134. Heading CSE. In the method of making shaped coke articles according to the parent Specification, the articles are treated in a first stage at 500‹ to 750‹ C. with a hot particulate heat carrier. In both stages the carrier is preferably sand which is reoiroulated through a hot air lifter, and the second stage, which is operated at at least 800‹ C., is followed by one or more cooling stages employing, e.g. inert gas. The two heating stages may be side-by-side, Fig. 1 (not shown), or superimposed, and the second stage is preferably above the first, Fig. 2 (not shown). In this embodiment, the sand passes in series through both stages and on as cooling medium to the cooling stage before being recirculated to the second (upper) stage. In another embodiment, Fig. 3 (not shown), fine coke is the cooling medium in a second cooling stage. Desulphurization of the articles may be effected by using, e.g. MnOg, ZnO or CaO, wholly or partly as the heat carrier, and/or by supplying reducing gases to one or both heating stages. It is stated that the apparatus may be operated under increased pressure.