baber/WOPTO huggingface dataset:
Patent GB-583338-A (GB)
Title: Improvements relating to producer-gas apparatus
IPC: C10J3/00
Filed: 1944-10-19
Abstract: 583,338. Gas-producers. HAMILTON, G. S. R. Oct. 19, 1944, No. 20229. Convention date, Jan. 21. [Class 55 (i)] In a gas-producer, between the furnace and the take-off pipe, are provided a number of concentrically arranged cup-like members separated by dividing walls so as to form a continuous tortuous passage for the gas. As shown in Fig. 1, in a reduced lower portion of the furnace 1 are three cup-like members 4 separated by dividing walls 10 attached to a plate 11. Also attached to the plate 11 is a duct 5 communicating with the take-off pipe 7. The tarry matter in the gas is thus broken up during the tortuous path that the gas is constrained to follow in the hottest part of the fire zone before it can reach the pipe 7. In the case of an updraught generator, the arrangement of cup-like members and dividing walls is inverted and communicates with the lower end of an off-take pipe passing upwardly through the generator.
Patent GB-424608-A (GB)
Title: Distribution device for cyclones, separators, furnaces and analogous apparatus
IPC: B04C5/02
Filed: 1934-07-10
Abstract: 424,608. Centrifugal dust-extractors. SAINT-JACQUES, E. C., 11, Rue Marbeau, Paris. July 10, 1934, No. 20240. Convention date, Aug. 10, 1933. [Class 23] A centrifugal dustextractor of the cyclone type with a cylindrical body 1 and a lower conical part 2 is provided with a cone 6 inside the body 1. The clean gas outlet 5 extends from the apex of the cone, and vanes 7 are placed across the gap between the base of the cone and the body wall ; the vanes are curved to direct the gaseous flow towards the axis. The dust laden gas enters the apparatus tangentially by the inlet 3, whirls in the space between the cone 6 and the body wall while its velocity increases owing to the narrowing space and is then directed towards the axis by the vanes 7. The separated dust drops into the conical collector 2. Specifications 367,194, 367,196, 401,630 ; and 406,124, [Group XII], are referred to.
Patent GB-736694-A (GB)
Title: Improvements in and relating to dynamo-electric machines
Inventor: MORGAN JOHN WILLIAM HAROLD
IPC: H02K1/18
Filed: 1952-08-13
Abstract: 736,694. Core constructions. ENGLISH ELECTRIC CO., Ltd. Aug. 7, 1953 [Aug. 13, 1952], No. 20366/52. Class 35. The stator core 10 of a dynamo-electric machine is mounted resiliently in its frame 11 by a plurality of links 20 ... 23 fixed rigidly to two sets of torsion rods or tubes 12 ... 14 and 16 ...18 which respectively are fixed rigidly also to rings 10a ... 10c and and 11a ... 11c respectively secured to the core 10 and frame 11. Each rod or tube may be continuous through the rings or it may comprise one of a number of short lengths disposed between each ring. The mounting permits rotating distorsion by the rotor of the stator to an elliptical shape, the rods twisting and bending to allow respectively radial and tangential movement, and the links may, permit axial stator movement. The clearance between the radially aligned rings 10a, 11a, &c., is such as to limit the permitted distortion; in the Provisional Specification the distortion is limited by buffers and also resilient bushes may be introduced into the rigid connections of the rods or tubes. Reference has been directed by the Comptroller to Specification 540,199.
Patent GB-597102-A (GB)
Title: Improvements in and relating to shielding devices for thermionic valves and the like
IPC: H01J5/12
Filed: 1945-08-09
Abstract: 597,102. Radio receiving apparatus, thermionic valves. CINCH MANUFACTURING CORPORATION. Aug. 9, 1945, No. 20463. Convention date, Aug. 16, 1944. [Classes 39 (i) and 40 (v)] A shield for thermionic valves comprises a shell having an open end which fits on a tubular support, and a valve retaining spring secured to the opposite end of the shell. A valve-holder 14, Fig. 4, is mounted inside a tubular metal shell 10, over which fits the shielding cover 17. The shell 10 is provided with bosses 16 which co-operate with recesses in the wall of the cover 17 to provide a bayonet fastening between the shell and the cover. A spring 18, the coils of which do not touch when the spring is pressed flat, is held in the top of the cover 17 by tabs 20 which are bent outwardly from an aperture formed in the top of the cover. Specification 597,101, [Group XXXVI], is referred to.
Patent GB-583402-A (GB)
Title: Improvements in or relating to fluxes for melting light metals such as magnesium
IPC: C22B9/10
Filed: 1944-10-23
Abstract: A process for manufacturing a flux for melting light metals such as magnesium comprises producing magnesium chloride from wholly or partially dehydrated magnesium ammonium chloride with which the other components of the flux have been previously mixed. The flux may contain MgCl2 and NaCl, with or without one or more of the following-KCl, MgF2, CaF2, BaCl2 and CaCl2, or MgCl2 and MgF2.  The magnesium ammonium chloride is heated to drive off first the water of solution and then the water of crystallization.  The dehydration is effected on a gas-fired hot-plate with mechanical agitation, in a muffle oven or rotary drying kiln, or by spraying magnesium ammonium chloride solution on an internally-heated rotary drum, wherefrom the crystals are removed by a scraper.  It is then mixed with the other components and again heated to drive off the NH4Cl fumes.  At 450 DEG C. the flux is produced in liquid form which is poured out to solidify.
Patent GB-931939-A (GB)
Title: Polyalkyl and/or polyaryl siloxanes and method for their production
IPC: C08G77/00
Filed: 1960-06-10
Abstract: Polyalkyl and/or polyaryl siloxanes having the average general formula Ra(OZ)bSiO 4-a-b,/ 2 wherein each R is a substituted or unsubstituted monovalent hydrocarbon radical, each Z is a substituted or unsubstituted mono- or polyvalent hydrocarbon radical, a=0,9 to 2,2, b=0,01 to 1 and 3 >(a+b)> 1, are made by reacting and equilibrated polymer mixture of the average general formula <FORM:0931939/IV(a)/1> in which each X is a halogen atom or an alkoxy group, x=0,9 to 2,2, y=0,75, to 1,75, z=0,0001 to 0,5 and 4> (x+2y+2z)>2, with a hydroxyl compound of the formula (ZOH)n, in which n=number of reactable hydroxyl groups/molecule, the liberated acid being neutralized with a base, e.g. metal hydroxides or alkoxy derivatives thereof, such as sodium methylate, ammonia, amines and pyridines.  The starting siloxanes which contain silyl sulphate groups are described and claimed in Specification 899,148.  In the reaction, the Si-bonded halogens and sulphate groups are split off with formation of Si-OZ groups, or if X is an alkoxy group, partial re-esterification occurs.  In the examples, a siloxane containing Si-bonded -Cl and -SO4 was reacted in the above manner with (1) methanol, (2) polyethylene glycol monomethyl ether, and (3) a polyalkylene oxide monomethyl ether.
Patent GB-1123489-A (GB)
Title: Playback apparatus
IPC: G11B15/68
Filed: 1966-05-10
Abstract: 1,123,489. Selective magnetic tape players. CANTEEN CORP. 10 May, 1966 [8 June, 1965], No. 20648/66, Heading G5R. [Also in Division F2] One of a number of tape cartridges 21 housed in compartments A-F is selectively engaged by heads 51, 52 on a transducer bearing carriage 50 which is mounted for vertical movement on lead screw 54 and bracing rod 56 (Fig. 9). A capstan 60 is rotated by motor 62 to grip and drive an endless magnetic tape housed in the selected cartridge 21. Lead screw 54 is connected to a spur gear 112 which is periodically coupled to the drive motor 62 through a solenoid operated clutch 80 and multi-level intermittent gear 100 (see Division F2). One complete revolution of lead screw 54 moves heads 51, 52 one compartment spacing. Gear 100 also causes subsequent oscillation of bracing rod 56 via shaft 26 and crank mechanism 140 to actuate a pointer arm 280, Fig. 7, mounted on carriage 50. Arm 280 actuates cartridge positioning mechanism 22 and thus brings heads 51, 52 into transducing engagement with endless tape 310 in the selected cartridge. Gear 100 is then disconnected from the drive motor 62 by de-energizing solenoid (92), Fig. 4 (not shown). At the completion of play solenoid (92) is again energized to cause arm 280 to push cartridge 21 out of contact with capstan 60. The periodic coupling of motor 62 to gear 100 through solenoid operated clutch 80 is controlled and timed by electric circuiting. Figs. 10, 10a (not shown).
Patent GB-1155792-A (GB)
Title: Process of preparing Pure Lysozyme
Inventor: GHIELMETTI GIUSEPPE
IPC: C12N9/36
Filed: 1967-05-04
Abstract: 1,155,792. Lysozyme. SPA-SOC. PRODOTTI ANTIBIOTICI S.p.A. 24 April, 1968 [4 May, 1967], No. 20713/67. Heading C3H. Pure lysozyme is prepared by dialysing an aqueous solution of crude lysozyme through a semi-permeable membrane against distilled water. The lysozyme (mol. wt. 14,386) passes into the distilled water; contaminating proteins of greater molecular weight do not. A suitable membrane is regenerated cellulose.
Patent GB-353231-A (GB)
Title: Improvements in apparatus for treatment by diathermy
IPC: A61N1/40
Filed: 1930-07-08
Abstract: In treatment of diathermy, the part of the body to be treated is placed within a condenser supplied with high-frequency electric energy and a mass of metal is placed in the condenser field at a point close to the part of the body to be treated to concentrate the electric field thereat, and so to subject the said parts of the body to a stronger heating effect.  In practice, probes or bougie pipes may serve as the metallic mass for use in cavities of the human body such as the stomach, nose, ears and wounds.  For the treatment of alveolar abscesses, plates of suitable form may be placed in the patient's mouth.  These instruments may be made of insulating materials with metal inserts to prevent scorching of the parts of the body in contact therewith.
Patent GB-646800-A (GB)
Title: Alkaline primary cells
IPC: H01M50/107
Filed: 1947-07-31
Abstract: 646,800. Batteries. RUBEN, S. July 31, 1947, Nos. 20755, 20756 and 20757. Convention dates, May 21, 1946, June 5, 1946, and July 11, 1946. [Class 53] A primary cell having an immobilized alkaline electrolyte, a zinc anode of large area and a cathode surrounded by depolarizer has a negative terminal formed by a part of the container which is formed of a metal insoluble in the electrolyte. Fig. 1 shows a cell having a steel container 10 enclosing a depolarizer 11 covered by a porous layer 12 above which is a rolled corrugated zinc anode 13 interwound with porous paper. The cell is closed by a metal disc 15 which makes contact with the anode 13 and forms the negative terminal. Disc 15 is separated from container 10 by an insulating washer 16. The disc 15 may be of copper which may be amalgamated, or silverplated copper, of of an alloy of copper with cadmium or zinc. The electrolyte consists of a solution of potassium hydroxide containing zinc oxide in solution and the depolarizer may consist of a mixture of mercuric oxide with graphite. The anode roll 13 is impregnated with electrolyte and amalgamated by placing mercury on top of the roll while standing on a suction-plate. The layer 12 may consist of parchment paper, an organic film of nylon, plasticized polyvinyl chloride, fibrous sheet such as asbestos or a pressed disc of powdered glass, magnesium silicate or hydroxide or ceramic material. Figs. 3 and 4 show in sectional plan and elevation a cell in which the zinc anode 21 is in the form of a corrugated and perforated sheet bent into a cylinder which makes contact with the inner surface of the container 20 which forms the negative terminal. The container 20 is of copper or a copper alloy and may be plated with silver or amalgamated with mercury. Copper alloys that may be used are those with cadmium, magnesium or zinc. The container may also be made of magnesium or amalgamated cadmium. The cathode consists of a steel rod 24 surrounded by a mixture of mercuric oxide and graphite 23 and is provided with a mica &c. washer 26, 27 at each end. The electrolyte 22 consists of a solution of potassium hydroxide containing zincate and converted into a jelly by sodium carboxy-methylcellulose. Fig. 5 shows a further modification in which the negative terminal comprises a cup 40 of magnesium or silverplated copper containing amalgamated zinc pellets or zinc shot 42 upon which is a slab of jelly electrolyte 43. The positive terminal consists of an iron or steel cup 46 enclosing a compressed depolarizer 49 such as a mixture of mercuric oxide and graphite. Cups 40, 46 are separated by an insulating washer and ring 44, 45. Instead of the jelly electrolyte 43, a porous layer of paper &c. impregnated with jelly or liquid electrolyte may be used. Specifications 596,224, 596,225, 610,719 and 646,799 are referred to.
Patent GB-855865-A (GB)
Title: Improvements in or relating to tumbling processes and abrasives for use therein
Inventor: SMITH-GORMAN ROBERT JACK
IPC: B24B31/02
Filed: 1956-07-04
Abstract: Abrasive material for use in a tumbling process is provided in the form of tablets, pellets or capsules which do not disintegrate readily in storage but which disintegrate readily on being introduced into a liquid employed in the tumbling process.  The abrasive may be one or more of emery, brown sand, silicon sand, silicon carbide, garnet grit, pumice powder and metal grain (finely divided blast steel shot).  The tablet may also contain a corrosion inhibitor (sodium metasilicate), a brightening agent (sodium chromate), a lubricating agent (very pure soap in minute flakes) and a gelling type cleanser (synthetic detergent).  The binding agent may be vegetable starch, which also acts as a polishing agent.  The starch may be coloured to indicate the properties of the tablet.  A tablet may be made by compression of the composition at 1840-1880 lb/sq. in. in a die having highly polished surfaces, so that the surfaces of the pellet are free from flaws or scratches which tend to initiate disintegration. Alternatively, a tablet is made by pouring on to dry thoroughly mixed abrasive grains a chemical solution made up with water and the following, where applicable: sodium metasilicate, sodium chromate, lubricating agent and half of the coloured polishing and granulating agent.  The wet mass is forced through a coarse wire mesh screen.  The resultant large granules are sprayed with a chemical solution, consisting of the remaining half of the polishing and granulating agent, together with the gelling type cleanser, and partially dried.  The large granules are forced through a fine mesh screen.  The resultant small granules are completely dried and then tabletted.  Specification 847,650 is referred to.
Patent GB-499763-A (GB)
Title: Improvements in or relating to the production of hard alloys
IPC: C22C1/05
Filed: 1937-07-27
Abstract: A method of making alloys of the type comprising two or more carbides, borides, nitrides, or silicides of titanium, zirconium, thorium vanadium, niobium, tantalum, chromium, molybdenum, tungsten, uranium, and boron, with or without an excess of one of the metals from which the carbides &c. are to be formed, and with or without a lower melting point metal which may be one or more of the metals cobalt, nickel, iron, manganese, chromium, and titanium, comprises subjecting a mixture of the finely divided constituent elements to heat treatment in stages, the temperature being progressively increased during each stage and maintained constant between successive stages at temperatures corresponding to those of the formation of the constituent compounds.  The product may be finely powdered, the carbon content checked at this stage if necessary, and further heat treatment applied at a temperature 100-150 DEG  C. higher than that previously attained. The starting mixture may consist of tungsten, niobium, vanadium, and carbon, and in such a mixture one of the metals may be present in about twice the amount of each of the others and the carbon may be less than that sufficient to convert all the metals into carbides.  During the heat treatment, the temperature is increased in steps corresponding to the temperatures at which the respective metals are converted into carbides.
Patent GB-779735-A (GB)
Title: Manufacture of new hydrophenanthrene-carboxylic acids and derivatives thereof
IPC: C07C62/32
Filed: 1953-07-28
Abstract: The invention comprises 1 : 2 : 3 : 4 : 5 : 6 : 7 : 8-octahydrophenanthrene - 2 - carboxylic acids containing in the 7-position a free hydroxyl group, in the 1-position an akyl group containing 1 to 3 carbon atoms, and which may be substituted in the 2-position by an alkyl group containing 1 to 3 carbon atoms, and the preparation thereof by treating the required tetrahydrophenanthrene-2-carboxylic acid having aromatic rings A and B with hydrogen in the presence of a nickel catalyst and a strongly basic agent such as an alkali metal hydroxide-particularly potassium hydroxide, at an elevated temperature and pressure and, if desired, converting the resulting 1 : 2 : 3 : 4 : 5 : 6 : 7 : 8-octahydrophenanthrene-2-carboxylic acid which may be substituted as above into an alkyl ester or an ammonium, alkali metal or alkaline earth metal salt thereof.  In the examples: (1) 1-ethyl-2-methyl - 7 - hydroxy - 1 : 2 : 3 : 4 : 5 : 6 : 7 : 8-octahydrophenanthrene - 2 - carboxylic acid is prepared from 1 - ethyl - 2 - methyl - 7 - hydroxy - 1 : 2 : 3 : 4 - tetrahydrophenanthrene - 2-carboxylic acid by treatment with hydrogen in the presence of Rupe nickel and potassium hydroxide at an elevated temperature and pressure, and is converted into the methyl ester thereof; 1 : 2 - dipropyl - 7 - hydroxy - 1 : 2 : 3 : 4 : 5 : 6 : 7 : 8 - octahydrophenanthrene - 2-carboxylic acid may be similarly prepared; (2) 1 - ethyl - 7 - hydroxy - 1 : 2 : 3 : 4 : 5 : 6 : 7 : 8-octahydrophenanthrene-2-carboxylic acid is prepared as in (1).
Patent GB-428003-A (GB)
Title: Improvements in or relating to photographic cameras
IPC: G03B37/00
Filed: 1933-11-03
Abstract: 428,003. Stand heads. BILLING, N. P., 6, Lower Regent Street, London. Nov. 3, 1933, No. 20967 /34. Divided out of 428,455, [Group XX]. [Class 52 (v)] [See also Group XX] A closure plate for a camera body is formed to serve as a support for the body during the taking of pictures and is provided with means (e.g. a hole and a slot) co-operating with an element (e.g. a screw) securable to the camera body to provide a pivotal mounting or a mounting permitting lateral movement. In the form shown, the closure plate 13 has a hole 16 for securing it to a tripod stand, a hole 15 through which a screw is passed into a threaded recess in the camera body and a slot 14 through which the screw may also pass. The camera may be secured by the screw passing through the hole 15, or slidably by the screw passing through the slot 14.
Patent GB-597371-A (GB)
Title: Improvements relating to voltage regulating apparatus for alternating electric current circuits
IPC: H01F29/02
Filed: 1945-08-17
Abstract: 597,371. Automatic control systems for supply circuits. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd., and WALKER, A. H. B. Aug. 17, 1945, No. 21022. [Class 38 (iv)] The voltage regulating apparatus of Specification 548,526 is modified by combining the two transformers in a single transformer having a core possessing two magnetic flux paths, one of which is operated at high saturation. In Fig. 1, which is electrically and magnetically equivalent to the apparatus of the prior Specification, the three-legged magnetic core 1 has an outer leg 2 with an air gap 3, a centre leg 13 and a second outer leg 7. Leg 2 is provided with a winding 4 in series with section 5 of winding 6 on leg 7 and both connected across the supply 8. Winding 9 on leg 2 is connected in series opposition with the whole of winding 6 and in parallel with series connected condenser 10 and inductance 11 across load terminals 12. In further modifications, not shown, the two primary windings are combined into one coil, and the windings are arranged in alternative positions on the core. In one modification the series connected condenser and inductance and the load terminals are connected to electrically separate windings.
Patent GB-722947-A (GB)
Title: Improvements relating to measuring apparatus for estimating the number of particles in a suspension
IPC: G01N21/51
Filed: 1952-08-21
Abstract: 722,947. Examining solutions photo-electrically. LOESCHCKE, H. H., and WEVER, R. Aug. 21, 1952 [Aug. 21, 1951], No. 21070/52. Addition to 688,653 and 688,945. Class 40 (3). The invention of the parent Specification in which the number of particles in a solution is estimated by measuring the proportion of light diffracted outside an angle 2#<SP>1</SP> where sin #<SP>1</SP>#0.73 #/fm, fm being the predominating projected area of the individual particle is now modified so that one photocell responds to the light outside this angle and another to the light within the angle, the outputs of the cells being applied in opposition to each other to a common indicating circuit. As shown, light from a source 1 passes through a circular diaphragm 1a, is made monochromatic by a filter 3, and is focused by a lens 2 in a converging beam through specimen carrier 4. The beam of light from the lens converges in a point image of the source on to a concave mirror 5 which subtends an angle #<SP>1</SP> at the centre 0 of the specimen carrier, while a larger concave mirror 6 subtends an angle #<SP>2</SP> at 0, #<SP>2</SP> being not less than four times #<SP>1</SP>. The small mirror 5 is arranged in front of the large mirror 6 and as nearly as possible concentrically with it, but the optical axes of the mirrors are inclined in opposite directions to the main beam. Thus light within the angle #<SP>1</SP> is reflected to photo-cell 7 while light between #<SP>1</SP> and #<SP>2</SP> is reflected to cell 8. The outputs of the two cells are supplied to potentiometers 9 and 10 respectively (Fig. 2), and cell 7 is used for the measurement, tapping 12 being adjusted until meter 11 reads zero when the position of the tapping indicates particle concentration. Potentiometer 10 is used to reset the apparatus to take account of variation in cell characteristics. The potentiometers may be replaced by means for stopping down the light reaching one of the cells. The apparatus may be used to indicate total light absorption by replacing filters 3 by a diffusing plate, the cells being connected in parallel so that they both feed the same potentiometer. A variable shutter may be used for adjustment of the absorption calibrations.
Patent GB-699690-A (GB)
Title: Trailer-type road sweeping machine
IPC: E01H1/04
Filed: 1950-08-25
Abstract: 699,690. Sweeping machines. ALIBERT, J. F. G. Aug. 24. 1951 [Aug. 25, 1950], No. 21130/50. Class 107 [Also in Groups XXIII and XXX] A tractor-type road sweeping machine comprises an upwardly and forwardly inclined continuously moving sweeping brush assembly, the brush assembly, (see Group XXIII), consisting of an endless band with spaced brushes thereon, lower and upper rollers or chain sprockets for the brush, means for driving the sprockets, an upwardly and forwardly inclined hopper including a continuously moving conveyer adapted to lift sweepings conveyed thereto by the brush assembly, and means for driving the conveyer. The brush assembly 15 sweeps the refuse up shoot 27 (which is adjustable to and from the brush) into the hopper 28 from which it is elevated inside housing 29 by a conveyer,. (see Group XXX), to the discharge 48. The whole brush assembly is adjustable by lever 40 and its linkage towards and away from the ground and is also capable of limited transverse motion to enable it to clear the kerb or other obstruction. At least two rear wheels 5 are provided and at least one front wheel 6 which is steerable by the wheel 9. The conveyer and brush assembly are driven through universal joints from a chain (shown in chaindotted lines) driven from the rear wheels. The brush assembly is held by a rubber block on the one side and a slidable block 32 on the other side to allow the sideways brush motion. Road spraying means may be fitted.