baber/WOPTO huggingface dataset:
Patent GB-261975-A (GB)
Title: Improvements in or relating to the distillation or heat treatment of carbonaceous and other materials
IPC: C10J3/00
Filed: 1925-06-05
Abstract: 261,975. Marshall, F. D. June 5, 1925. Coking processes; plant.-Carbonaceous materials are fed by a plurality of co-acting screws through a casing or retort heated by blow gases from a water-gas producer, the water-gas being either passed through or around the retort to supplement the heating by the blow gases, or withdrawn separately and subsequently mixed with the retort gases. In a distilling and briquetting apparatus of the knid described in Specification 261,927 the material is forced by screws A' through cells formed by internal webs in the retort A which has gas withdrawal ducts A<2> leading to an outlet pipe S. During the " blow " the gases from the producer D pass through a dust extractor E to the retort combustion chamber B where they are burnt with air preheated by passage through the pipe K in the dust extractor. During the " run " the water gas passes either through or around the retort A to supplement the heat from the blow gases or through an outlet N to a heat interchanger F from which low pressure steam is obtained or hot water for use in a steam boiler and the gas is led by a pipe O to mix with the coal gas. The temperature of the retort does not exceed 1400‹ F. Fig. 6 shows a low temperature retort P superposed on a high temperature retort O which is surrounded by a combustion chamber O<1> heated by the method above described the combustion gases passing into a heating chamber P<1> are being admitted by ports P<2> to cool the hot gases. The screws P<3> are operated in the manner described in Specifications 261,919 and 261,927. Part of the blow gases may be used to heat a separate chamber in which the water gas is heated before reaching the retort.
Patent GB-753074-A (GB)
Title: Hydrogen ion concentration measuring apparatus
IPC: G01N27/416
Filed: 1954-05-20
Abstract: 753,074. Electric tests. CLARK, 1. M. (Foxboro Co.). May 20, 1954, No. 14887/54. Class 37. A system for measuring the pH value of a solution using a measuring half-cell electrode and a reference half-cell electrode is characterized in the use of a third electrode in contact with the test solution, the potential difference between the measuring electrode and the third electrode being amplified and algebraically added to the potential difference between the reference electrode and the third electrode to give a D.C. voltage indicative of the pH value of the test solution, which may be modified in accordance with the temperature of the test solution by temperature-sensitive elements in the solution. As shown, a stainless steel pipe 2 (Fig. 1) carrying the test solution 4 has assembled thereto a measuring electrode 8, e.g. a glass electrode, a reference electrode 10, e.g. a calomel cell, and temperature-sensitive apparatus 12 comprising two temperature-sensitive resistors 186, 192 (Fig. 1A) and a thermocouple 198. The potential difference between the measuring electrode 8 and the pipe 2 is fed into an A.C. amplifier 17 through a vibrating switch 28 whose moving contact 32 makes alternately with a first fixed contact 26 carrying the measuring electrode potential and a second fixed contact 30 fed with a feedback potential as described below. The amplifier output is fed to a transformer 138 to be rectified in a phase-sensitive rectifier 144, producing a D.C. voltage across a capacitor 56, which is combined with the potential difference between the reference electrode 10 and the pipe 2 via lead 20, and is fed back through lead 52 to the second fixed contact 30 to reduce the input to the amplifier to approximately zero. Thus the voltage across capacitor 56 is a function of the difference between the potentials of electrodes 8, 10 with respect to the pipe 2, and is therefore indicative of the pH value of the test solution 4 at a given temperature. This voltage may be taken out directly at terminals 162, 164, with switch 166 in the upper position or, with switch 166 in the lower position as shown, may be compensated in accordance with the temperature of the test solution by the bridge containing temperature-sensitive resistors 186, 192 located in the apparatus 12 immersed in the solution. With some measuring electrodes it is further necessary to add the voltage output of the thermocouple 198 also located in apparatus 12 to obtain complete temperature compensation.
Patent GB-1376941-A (GB)
Title: Means for producing three-dimensional forms from a photographic  image
IPC: G03F7/00
Filed: 1972-08-11
Abstract: 1376941 Three-dimensional photographic reproduction K G O DIXON 11 Aug 1972 [14 May 1971] 14948/71 Heading G2X In reproducing a three-dimensional shape, such as a human head 10, from a photograph of that shape, a series of uniformly spaced parallel lines is projected on to the head from a projector 11 and photographed by a camera 12, the photograph then being projected on to a screen, and each contour line formed by one of the original parallel lines traced out by a stylus linked to a cutting tool which cuts out a corresponding contour on a block of material. The angle between the camera and projector axes should be 90 degrees but since the resolution between the lines would not be satisfactory in this case, an angle of about 36 degrees is used, and compensation made at a later stage. The photographic image (14) Fig. 2 (not shown), is projected on to a translucent screen 16. A slide 18 is mounted for accurately controlled movement in a frame 19. The lower end of slide 18 carries a fixed frame 28 having a transverse slide 29, to which is attached a plate 30 of mouldable material such as clay. A cutting tool 32 is carried by a pantographic mechanism (34), 35, 36 which also carries a stylus 38. As the stylus traces a contour line on the photographic image (14), the tool 32 cuts a corresponding line in block 31. The slide 18 is then advanced, and since this is at an angle # to the horizontal, the block 31 is advanced both horizontally and vertically. The next contour line is now traced, and so on. The compensation referred to above is made by a subsidiary pantograph mechanism which moves the block 31 in the same direction as the X component of the tool 32 by a distance of d sin α where d is the distance between the contour lines and α is the angle between the camera and projector axes. The ratio between the dimensions of the contour line traced by the stylus and that cut by the tool 32 can be varied by changing the ratio of the pantograph arms or by adjusting the size of the image by varying the distance between projector and screen.
Patent GB-724130-A (GB)
Title: Improvements in or relating to display arrangements
IPC: H02B15/00
Filed: 1952-06-13
Abstract: 724,130. Illuminating arrangements. GENERAL ELECTRIC CO., Ltd., and HUBBOLD, S. May 28, 1953 [June 13, 1952], No. 14982/52. Class 3 (2). An arrangement, e.g. for a control room comprises a display panel 12 bearing matter intended to be displayed to an operator 10 and a desk or the like 11, which defines the position occupied by the operator in use of the arrangement, in which the display panel is of part elliptical shape or approximates to an elliptical shape having six or more facets in the horizontal plane, the desk or the like is so disposed relative to the panel that the said operator's position is substantially at the first focal point of the elliptical shape, nearer the panel, and a substantially non- reflecting opaque surface 14 is positioned to the side of the desk or the like away from the panel and is so arranged that it intercepts all the straight line paths from the panel which pass through the second focal point of the elliptical shape further from the panel. The arrangement prevents or reduces disturbing reflections reaching the operator. As shown the surface 14 is a wall disposed at the second focal point 13 and is at least as wide as the desk or like 11 so that unwanted reflections are reduced if the operator is not exactly at the first focal point.
Patent GB-849787-A (GB)
Title: Vitamin a compositions
IPC: A61K31/59
Filed: 1958-05-09
Abstract: A vitamin A composition comprises an ester of vitamin A uniformly dispersed throughout the reaction product of formaldehyde and partially hydrolysed casein.  The acetate, tertiary butyl acetate, pivalate, anthraquinone-b -carboxylate and hemi-succinate, and palmitate esters may be used, the palmitate being preferred.  About 5 to 25% by weight of vitamin A of antioxidants may be added, e.g. butylated hydroxy toluene, butylated hydroxy anisole, ascorbyl palmitate, a -tocopherol. About 5 to 15% of amines for example cyclohexylamine, N-ethyl-piperidine, dibutylamine may also be added. The partially hydrolysed casein may be prepared by the mild hydrolysis of casein with dilute mineral acid or proteolytic enzymes such as pepsin or trypsin and may have an a -amino nitrogen content of from less than 1% to 10% (preferably 0,5 to 7,0%).  It is conveniently used as an aqueous suspension having a solids content of about 25 to 45% (preferably about 30 to 35%) in which the vitamin A ester and antioxidants are dispersed in amounts which will give a final product having about 10,000 to 500,000 international units of vitamin A activity per gram.  Formaldehyde is added with stirring to this mixture preferably at or near room temperature, conveniently as the readily available 37% solution and stirring or mixing is continued for about 5 minutes to an hour (preferably about 15 minutes) during which time the product becomes semi-solid and some granulation may occur.  The ratio by weight of formaldehyde to partial hydrolysate of casein may vary from about 1:10 to 1:100 and is preferably 1 part to from 10 to 15 parts of hydrolysate.  The reaction mass may be granulated and dried at temperatures up to 100 DEG C. at atmospheric pressure or under vacuum to give a dry, free flowing powder which may be incorporated in animal feed supplements and pharmaceutical preparations.
Patent GB-1045804-A (GB)
Title: Oxazolidonyl sulfones
IPC: C07D263/26
Filed: 1964-04-10
Abstract: The invention comprises bis(2-oxazolidon-3-yl)sulphones. They are prepared from sulphuryl diisocyanate and epoxy compounds, e.g. ethylene, propylene and butylene oxides, butadiene monoepoxide, styrene oxide, epoxycyclohexane, vinylcyclohexane monoepoxide, in the absence of moisture, optionally using a solvent or catalyst (e.g. a trialkylamine, alkali metal halide or organic ammonium halide).ALSO:Poly-[bis-(2-oxazolidon-3-yl) sulphone] resins are prepared from sulphyryldiisocyanate and polyepoxides in the absence of moisture.  A typical product of formula <FORM:1045804/C3/1> is derived from butadiene dioxide.  Other examples prepare resins from 2,2-di-(p-hydroxyphenyl) propane diglycidyl ether, dicyclopentadiene dioxide and vinylcyclohexene dioxide. Many other specified polyepoxides include polyhydric alcohol esters of epoxycyclohexane carboxylic acids, epoxycyclohexylalkyl epoxycyclohexane - carboxylates, epoxycyclohexylalkyl esters of dicarboxylic acids, epoxycyclohexylalkyl oxyalkylene glycol ethers, epoxycyclohexane dicarboximides, epoxycyclohexylalkyl carbamates and acetals, epoxycyclohexyl-substituted spirobi-(metadioxan) derivatives and divinylbenzene dioxide. Reaction may be effected with or without solvents and catalysts may be used, e.g. trialkylamines, alkali metal halides or organic ammonium halides.
Patent GB-333576-A (GB)
Title: Improvements in and relating to fire traps for cinematograph projection apparatus
IPC: G03B21/18
Filed: 1929-05-14
Abstract: 333,576. Hasselkus, J. W., and Jones, W. T. May 14, 1929. Kinematograph apparatus.-In a fire-trap having rollers between which the film is nipped across its full breadth one of the nipping rollers 6, Fig. 1, is mounted on a pivoted support 20 and pressed against the coacting rollers 4, 5 by a spring 22. The mounting of the rollers is such that the film can be laterally inserted between the rollers and lateral film guides 25 are provided. The fire trap is mounted on the lower spool box 2 by means of a two part base 10, 12 connected by a screw 17, one part 12 having a separating upturned lug 16 at one side so as to leave a threading slot 18, Fig. 4. The rollers 4, 5 are mounted on a bracket 7, 7a secured to the part 10. The pivoted support 20 of the roller 6 is mounted on a bracket 19 secured to lugs 13, 14 on the part 12. Guide rollers 11, 15 are also mounted on the brackets 7, 7a and lugs 13, 14 respectively.
Patent GB-666218-A (GB)
Title: Improvements in or connected with combined engines and pumps
IPC: F04B53/10
Filed: 1949-06-30
Abstract: 666,218. Engine valve gear. SHELLARD, I. F. June 30, 1949, No. 15090/48. Class 122(ii). [Also in Group XXIX] In an hydraulically-actuated reciprocating pump, the pump piston 4 is coupled to the motor piston 2 and the supply of pressure liquid to the motor cylinder is controlled by a main slide valve 28 that is coupled by the rod 27, lever 25, spindle 23, lever 21 and rod 20 to a piston 19 the movements of which are controlled by an auxiliary slide valve 13 which is coupled by a rod 14 and lever 15 to a rod 16 fitted with abutments 17, 17<SP>1</SP> co-operating with an abutment 18 on the coupling rod 3a. The pressure liquid supply line 6 leads to the main slide valve 28 and a branch 7 leads to the auxiliary slide valve. The pump is double-acting with an inlet 37 and delivery 49 and a valve box containing inlet valves 42, 43 and delivery valves 50, 51.
Patent GB-1485120-A (GB)
Title: Starter motors
IPC: F02N15/06
Filed: 1974-09-26
Abstract: 1485120 Engine starter drives LUCAS ELECTRICAL Ltd 26 Sept 1974 [5 Oct 1973] 15099/77 Divided out of 1485119 Heading F1K The subject-matter of the present Specification is substantially identical to that of Parent  Specification, but the claims are directed to the  position and operation of the pinion assembly return spring in the engine starter drive.
Patent GB-561065-A (GB)
Title: Lamp housing
IPC: G03B21/20
Filed: 1942-10-28
Abstract: 561,065. Electric lamp casings. RICHARDSON, E. C. Oct. 28, 1942, No. 15149. [Class 75 (iv)] A lamp housing, suitable for high power spot lights to illuminate motion picture sets comprises axially extending S-sectioned channel members 21 arranged with the inwardly extending leg 26 of one member disposed between the central portion 24 and the outwardly extending leg 25 of the next adjacent member so as to allow free ventilation without the escape of light. The members 21 and a top channel member 20 having inwardly directed legs are spot-welded at their ends to straps 27, 28 which are then spot-welded to the outer flanges of front and rear end caps 2, 3. The inner flange of the cap 2 supports a lens ring 10 and the inner flange of the cap 3 is formed with a ventilating opening 16 covered by a member 16a formed with ventilating openings 19 covered by a light baffle 18. The light source 29 and reflector 30 are mounted in a housing member 33 secured to extensions 34, 35 of the caps 2, 3. A sheet metal wall 36 on the member 33 has outwardly turned ends 37 to prevent the escape of light. Drainage apertures are provided in the caps 2, 3.
Patent GB-162206-A (GB)
Title: Improvements in and relating to apparatus for separating floating and other impurities in suspension from liquids
IPC: B04B11/00
Filed: 1920-06-04
Abstract: 162,206. Petree, C. G. June 4, 1920. Separating by gravity.-Tanks for separating scum and sediment from liquids, such as sugarcane juice, are provided with special means for introducing the liquid so as not to cause disturbance, and for separating and discharging the scum. The liquid is delivered by a pipe s on to a platform t in a receiving-chamber r, and passes thence through an inclined channel u to a circular distributing-chamber v on the cover b of the conical settling-tank a. Within the chamber v there is an opening x in the cover b and the liquid delivered tangentially to the chamber v passes round a gallery formed between the wall of the chamber and the edge of the opening and overflows through the opening. Depending from the cover b are a cylindrical wall 1 and a volute wall 3. The greater part of the liquid passes through an opening 2 in the wall 1, and is directed round the tank towards an overflow outlet 11 by the wall 3. The scum is collected by an inclined plate 5 extending above and below the surface of the liquid and oblique to the direction of circulation. The scum may be removed from the plate to the outlet 6 by blades on a rotary shaft or attached to endless belts or chains or by means of a helical conveyer. Scrapers k attached to arms j on a vertical shaft h rotated by worm-gearing l direct the sediment from the walls of the tank towards the outlet q. Draw-off taps 13 are provided at different levels for use in emptying the settling-tank.
Patent GB-818083-A (GB)
Title: Improvements in or relating to dry powder compositions for the extinction of fires
Inventor: BIRCHALL JAMES DEREK
IPC: A62D1/00
Filed: 1956-05-16
Abstract: A fire extinguishing powder comprises 90 per cent or more of a basic fire-extinguishing element, and a small amount of chlorinated paraffin wax to impart water-repellency to the powder.  In addition, a small proportion of an agent adapted to improve the free-flowing quality of the powder may be incorporated.  The basic fire-extinguishing element may be sodium carbonate, sodium bicarbonate, sodium chloride, hydrated borax, hydrated sodium sulphate or other basic element described in Specification 812,146, or sand or other siliceous material, e.g. diatomaceous earth or french chalk.  The free-flowing agent is a water-insoluble or slightly water-insoluble phosphate such as tricalcium phosphate or magnesium phosphate.  Not exceeding 0.09 per cent of a water-repellant of the magnesium stearate type, or other metal salt of a higher fatty acid having more than 16 carbon atoms, may also be incorporated.
Patent GB-438262-A (GB)
Title: Electrically insulated coupling for metal pipes or conduits
IPC: F16L25/02
Filed: 1935-05-27
Abstract: 438,262. Pipe joints. LYGOS PROPRIETARY, Ltd., Dodd Street, South Melbourne, Australia. May 27, 1935, No. 15398. Convention date, July 14, 1934. [Class 99 (i)] An electrically insulating sleeve coupling for metal pipes comprises a pair of metal sockets 1 into which the pipes 9 are screwed, the sockets being separated and surrounded and connected by insulating material D. The coupling sleeve may be formed by screwing the sockets on to a ferrule 2 of insulating material and filling the space between an outer metal casing 5 and the sockets with a plastic material such as artificial resin. The inner tube may be moulded at the same time as the outer covering and the metal casing 5 may be embedded in the insulating material.
Patent GB-1245700-A (GB)
Title: Improved photoelectric trichromatic colorimeters
Inventor: HARRISON WILLIAM
IPC: G01J3/51
Filed: 1969-03-25
Abstract: 1, 245, 700. Reflectance colorimeter. W. HARRISON. March 23, 1970 [March 25, 1969], No.15435/69. Heading G1A. In a reflectance colorimeter for examining the colour of a length of material the material is illuminated by at least one fluorescent tube and the reflected light is monitored by a number of photo-cells each having a respective different filter, arranged in a line parallel to the tube and means are provided for derivingaratio of the current or voltage in two of the cells or of comparing the outputs of the respective cells with that of a reference cell exposed directly to the source. Filters suitable for indicating colour measurement in terms of the X, Y, Z tristimulus values of the CIE are exemplified, and potentiometer meter circuits are shown. A housing having an aperture S, Fig. 1, for monitoring the material includes two fluorescent tubes T1, T2, photo-cells P1-3, filters B, G, R, and reference cells P4-6 Potentiometer current and voltage balancing arrangements are described.
Patent GB-942473-A (GB)
Title: Improvements in or relating to radar systems
Inventor: EASTWOOD ERIC
IPC: G01S7/28
Filed: 1960-05-03
Abstract: 942,473. Radar. MARCONI CO. Ltd Jan. 17, 1961 [May 3, 1960], No. 15539/60. Heading H4D. In a radar system in which an aerial 1 (Fig. 1), rotating in azimuth supplies echo signals to a P.P.I. display 11 a desired sectorial area 21 of which, selected by a " joy-stick " 17, is displayed on a B'scope 15, the system also including, if desired, known arrangements for eliminating clutter (e.g. MTI systems or systems utilizing pulse length discrimination), additional discrimination against clutter is provided by storing the signals fed to the B'scope 15 during a number of scans of the aerial and then displaying them at a repetition rate which is much higher than the scanning rate of the aerial. This is achieved by supplying the signals in connection 26 (Figs. 1 and 2), to the " writing-gun " of a double-ended storage tube 29 to lay down charges in a master (television type) similar to that of B'scope 15 and, before the next set of signals is stored, reading-off these charges by means of a similar raster scan by " reading-gun " 33 and supplying the signals in digitalized form to a ferrite store (Fig. 3, not shown), which holds 20 such sets of signals and from which output signals are derived for a display device of the rate of 20 per second. The signals are put into the store at the rate of one complete 200 line picture (i.e. the B'scope picture) for each revolution of the aerial, which has a period of 15 seconds, and after 20 such pictures have been stored, the first one is replaced by the 21st and the second one by the 22nd and so on. The reading out of the signals for application to the display device erases such signals and means are therefore provided for replacing such signals except when new pictures are being put into the store as described above. This latter requires erasure of the existing signals and means are provided to prevent signals being erased from being fed to the display device.
Patent GB-1067793-A (GB)
Title: Improvements in or relating to precooked rice flour and method of preparation thereof
IPC: A23L7/10
Filed: 1965-04-12
Abstract: A process for preparing a precooked porous rice flour having a bulk density of 0.40 to 0.80g/ce comprises cooking whole or broken grain rice sufficiently to gelaainise the starch content thereof, in an excess of water over that required for gelatinisation, washing the rice with water to remove loose starch therefrom so that a major portion of the remaining starch content is contained in unbroken starch cells, drying the rice and grinding (e.g. in a hammer mill) the rice.  The moisture content of the rice flour may be below 14% by weight.  The cooking may be done by immersion cooking followed by steaming at atmospheric or superatmospheric pressure, the rice being quenched with water between the cooking steps.  The drying of the rice may be carried out in batches or continuously, by circulating heated gases through the rice.  The rice may be polished or white rice, brown rice or parboiled rice.