baber/WOPTO huggingface dataset:
Patent GB-602656-A (GB)
Title: Improvements in or relating to rotary drums for turbines and compressors
IPC: F01D5/06
Filed: 1945-11-07
Abstract: 602,656. Securing turbine drums on shafts. MASCHINENFABRIK OERLIKON. Nov. 7, 1945, No. 29740. Convention date, Dec. 20, 1944. [Class 80 (ii)] [Also in Groups II, XIII and XXVI] In a turbine rotor drum having at least one internal supporting body which is united at its periphery with the interior of the drum along at least one helical line, the drum and supporting body are inter-connected by inter-engaging ribs and grooves which positively connect the drum and supporting body in the radial direction. The turbine rotor drum 1, Fig.. 1, carried by supporting discs 3 mounted on a shaft 4, is provided with helical ribs 6 which engage with grooves in the periphery of the discs. The drum is assembled by screwing the discs into the drum. The ribs 6 may be in the form of a single or multiple start thread. In order to avoid bending stresses in the drum, the part of the drum wall between the supporting discs may be in the form of a catenary. In a modi-- fication, grooves are cut in both the drum and the supporting discs which are secured to each other by a helical member engaging both sets of grooves. The Specification as open to inspection under Sect. 91 comprises also the application of the invention to drums for centrifuges and rotary heat-exchangers. This subject-matter does not appear in the Specification as accepted.
Patent GB-738470-A (GB)
Title: Improvements in or relating to hollow metal propeller blades
IPC: B64C11/24
Filed: 1953-10-29
Abstract: 738,470. Propeller blades. UNITED AIRCRAFT CORPORATION. Oct. 29, 1953 [Dec. 18, 1952], No. 29916/53. Class 114. [Also in Group XXII] A hollow propeller blade comprises an elongated sheet metal aerofoil-shaped shell 12 supported by a tubular metal core 10 extending lengthwise therein and projecting from one end thereof and the transverse shape of the core conforms generally to the chordwise shape of the shell so that at the inner end of the shell, Fig. 2, the core fits snugly a substantial portion, e.g. half, of the chord whilst at the other end, Fig. 4, it fits a much greater portion thereof. The shell is closed at the end 20 of the greater contact between the core and the shell, and the core and shell are interconnected by a fused metal joint over practically the whole of their contacting surfaces. To obtain the greater contact area, the core is expanded from 35 to 80 per cent at its outer end before it is flattened. Specifications 605,256 and 622,812, [Group XXII], are referred to.
Patent GB-1009105-A (GB)
Title: Improved magnetic recording media
IPC: G11B5/64
Filed: 1962-08-03
Abstract: 1,009,105. Magnetic recording media. ROLA CO. (AUSTRALIA) PROPRIETARY Ltd. Aug. 3, 1962 [Aug. 15, 1961], No. 29943/62. Heading H1H. A magnetic recording medium comprises single domain ferromagnetic filaments each encased in a metal or alloy casing different from that of the filaments and secured together to form a unitary structure. The encased filaments may be formed as disclosed in Specification 896,881, and may be welded together as disclosed in Specification 1,009,104. The magnetic particles may constitute a layer on a non- ferromagnetic base, which may be a tape base or a wire-like core, being secured thereto by welding, soldering or cementing.
Patent GB-346256-A (GB)
Title: Improvements in or relating to apparatus for gathering and collating book signatures or the like
IPC: B65H39/06
Filed: 1929-10-03
Abstract: 346,256. Printing. COOK, T., Empire Works, Stalybridge, Cheshire. Oct. 3, 1929, No. 29945. [Class 100 (i).] Signature gatherers and the like ; delivery apparaus.-To collate book signatures, sheets of paper, or the like as they are delivered from a printing- machine or fed from separate piles, the sheets are first advanced side-byside and are acted on by guides to stagger the sheets relatively to one another prior to the action of a delivery chain or belt 11 which brings the sheets into a common plane so that the sheets can be stacked in correct sequence in a stack x. As shown in Fig. 2, the sheets 7 are cut by knives 5 from a web 6, and are advanced by rollers 18 to a trough 8 formed of a bottom 8a, and sides 8b, 8c, fitted with sheet guides 8d, 9d. As the sheets enter the trough the contiguous ends of adjacent sheets are engaged by bent forked ends 9b, 9c of sheet guides 9, and the sheets 7 are thus staggered as shown in Fig. 2. The sheets 7 are then engaged in succession by spring-controlled pivoted fingers 13 on a chain 11 which gathers the sheets for delivery into the trough x by a packer 14.
Patent GB-648079-A (GB)
Title: Improvements in or relating to ship's windows or scuttles
IPC: B63B19/00
Filed: 1948-11-18
Abstract: 648,079. Cabin lights. UTLEY, T., [Representative of UTLEY, A. D.], and TINKLER, A. Nov. 18, 1948, No. 29961. [Class 113 (i)] A ship's -scuttle having a frame a is provided with screwthreaded distance pieces or ferrules e adjacent to, or within, the bolt holes c utilized in securing the scuttle in position, the distance pieces or ferrules being adapted to be screwed out of apertures c<SP>1</SP> of the scuttle frame a until they touch the ship's plating b at those parts where irregularities in the latter leave a space between said plating and frame. The bolt holes c are each threaded at c<SP>1</SP> and receive a ferrule e having a bore of such a size as to permit a securing bolt d to pass therethrough. In another embodiment each bolt hole is of normal diameter for its bolt, and adjacent each hole are two or more threaded apertures fitted with distance pieces or grub screws in place of the single ferrule e of Fig. 1.
Patent GB-487204-A (GB)
Title: Improvements in and connected with precombustion chambers for diesel engines
IPC: F02B23/04
Filed: 1937-11-02
Abstract: 487,204. Oil engines. DAIMLERBENZ AKT.-GES. Nov. 2, 1937, No. 29986. Convention date, Nov. 4, 1936. [Class 7 (iii)] An insertion for a pre-combustion chamber is formed in two parts h<1>, h<2>, the part h<1> carrying a core piece k surrounded by passages m while the part h<2> contains a nozzle-shaped passage n, the walls of which taper gradually to deliver the contents of the pre-combustion chamber, through the outlet n<2> into the cylinder, with a minimum of resistance. Preferably the maximum angle that the wall of the passage makes with its axis is 30‹. Heat insulating spaces r may be provided between the insertion and the surrounding wall and the insertion may be screwed on to a conical seating o, Fig. 2, in the cylinder head, or may be centred by a cylindrical surface p, Fig. 4, and supported on a shoulder q. The contents of the pre-combustion chamber may impinge upon a raised point on the piston. The pre-combustion chamber is located centrally of the cylinder between two inlet and two exhaust valves.
Patent GB-617944-A (GB)
Title: Improvements in froth flotation processes
IPC: B03D1/012
Filed: 1946-10-08
Abstract: Thiopyrimidines are prepared by the condensation of thiourea or a mono-substituted thiourea with an alpha, beta unsaturated ketone.  2 - Mercapto - 6 - methyl - 3,4 - dihydro - pyrimidine is obtained from 3-butane-2-one; 4-mercapto-4,4,6-trimethyl-3,4-dihydropyrimidine from mesityl oxide, acetone or diacetone; 2 - mercapto - 4,6 - dimethyl - 4 - (beta - carboxyl - ethyl) -5-carboxymethyl-3,4-anhydropyrimidine from levulinic acid; 2-mercapto-4-methyl-4,6-diphenyl - 3,4 - dihydropyrimidine from aceto - phenone; 2-mercapto-4,6-dimethyl-4-benzyl-5-phenyl - 3,4 - dihydropyrimidine from phenyl acetone and 2-mercapto-4,4-pentamethylene-5,6-tetramethylene-3, 4-dihydropyrimidine from cyclohexanone or cyclohexylidene cyclo - hexanone.  U.S.A.  Specifications 2,131,790, 2,181,217, 2,234,848 and 2,244,547 are referred to.ALSO:In a froth flotation process the flotation is carried out in the presence of a thiopyrimidine. Suitable thiopyrimidines are 2-mercapto-4 4, 6-trimethyl-3 4-dihydropyrimidine, 2-mercapto-6-methyl-3, 4-dihy dro pyrmidines; 2-mercapto-4, 6-dimethyl-4-(beta-carboxyl ethyl)-5 carboxyl methyl 3, 4-dihydropyrimidine; 2-mercapto-4, 6-dimethyl-4 - (beta-acetyl ethyl)-5-acetonyl-3, 4 - dihydropyrimidine; 2 - mercapto-4-methyl-4, 6-diphenyl-3, 4-dihydropyrimidine; 2-mercapto-4, 6-dimethyl-4-benzyl-5 phenyl-3, 4-dihydropyrimidine 3 and 2-mercapto-4, 4-penta-methylene-5, 6-tetramethylene-3, 4-dihydropyrimidine.  These reagents are suitable for use with sulphide ores and lead, zinc and iron sulphides may be separated in lead-zinc-iron sulphide ores by selectively floating lead sulphide and then selectively floating zinc sulphide in the lead tailing in the presence of this pyrimidine.  U.S.A. Specifications 2,131,790, 2,181,217, 2,234,848 and 2,244,547 are referred to.
Patent GB-648816-A (GB)
Title: A process of coating and product
IPC: D04H13/00
Filed: 1946-10-09
Abstract: 648,816. Compound sheet materials. AMERICAN VISCOSE CORPORATION. Oct. 9, 1946, No. 30149. Convention date, Oct. 11, 1945. Drawings to Specification. [Class 140] Laminated sheet material is prepared by a process characterized by juxtaposing a film comprising an organic thermoplastic material and a substantially continuous layer of unwoven fibres at least partially comprising thermoplastic fibres and applying heat and pressure to cause the film and fibres to adhere together without impregnating the fibre layer with the film material. The film may be non- self-supporting and may be of thermoplastic resins such as polyvinyl chloride, polyvinylidene chloride, polystyrene, vinyl chloride acetate copolymers, vinyl chloride methyl methacrylate copolymers, polyvinylacetal, polyvinyl butyral, polymethylmethacrylate, coumarone - indene with rubber, oil-modified alkyd resins, alkyd resins, phenol-formaldehyde resins, polymethylacrylate, polyethylene, and polyamides, or thermoplastic cellulose compounds such as cellulose acetate, acetate butyrate, acetate propionate, and propionate and benzyl, ethyl, butyl and hydroxy ethyl cellulose, or thermosetting resins in a thermoplastic stage such as urea-formaldehyde, and others or mixtures of thermoplastic and thermosetting resins. The film may be formed by extruding or casting a solution or molten mass of the material or by calendering the plastic mass into a film, or the film may be formed on a temporary backing sheet and then removed. A minor proportion of short fibres may be incorporated into the material from which the film is made. The fibrous layer may be of natural fibres such as cotton, hemp, jute, flax, kapok, leather, silk, wool, hair, fur, animal or asbestos, or artificial fibres such as glass, rock, casein, gelatin, zein, viscose rayon, and acetate rayon, or of thermoplastic resins such as polyvinyl chloride and many others or of thermoplastic cellulose compounds such as the acetate, acetate butyrate, acetate propionate, propionate, or benzyl, ethyl, butyl and hydroxy ethyl cellulose. The preferred fibrous layer is made by mixing together a minor proportion of thermoplastic textile fibres with non-thermoplastic textile fibres by dispersing the two types in a common gaseous atmosphere and depositing the mixture on the surface. The fibrous layer may be treated to render the thermoplastic fibres adhesive, e.g. by treating with a solvent, hot air, steam, heated plates or rollers with or without pressure. Prior to adhering to the film the loose unwoven fibres may be matted by carding and drafting, or combing. The film and/or the fibres may be coloured with either the same or a different colour and may be compounded with waterproofing agents such as wax, asphalt or resins or with fireproofing or germicidal agents.
Patent GB-334093-A (GB)
IPC: F21V21/14
Filed: 1929-10-04
Abstract: 334,093. AndrÚ, H. Oct. 5, 1928, [Convention date]. Coating.-In an electrochemical rectifier with solid contacting electrodes, one of the electrodes is porous and is impregnated with a chemical regenerating agent which maintains or restores the original chemical composition of the electrodes. The anode may be silver sulphide, the cathode an oxidizable metal, and the regenerating substance concentrated sulphuric acid. The anode may be formed by applying silver to the cathode either as a thin perforated sheet or, as shown in Fig. 1, in the form of a wire 1 wrapped round the cathode 2, and then forming a surface layer 3 of sulphide or bisulphide by immersion in a bath of melted sulphur and heating at a higher temperature. This operation is repeated until the desired thickness is obtained. After sulphiding, the coils are impregnated with sulphuric acid, which produces the oxide layer 4 by its action on the cathode 2. Alternatively the cathode may be coated with silver sulphide by applying this in the fused state. Current may be led to this either by a coil of silver wire wound thereon, or by surrounding the sulphide-coated cathode with powdered silver, which holds a reserve of the regenerating liquid.
Patent GB-706766-A (GB)
Title: Improvements in and relating to commutators
Inventor: ROBERTS LLEWELLYN GEORGE
IPC: H01R43/08
Filed: 1949-11-24
Abstract: 706,766. Commutators for dynamo-electric machines. WATLIFFE CO., Ltd. Feb. 23, 1951 [Nov. 24, 1949], No. 30158/49. Class 35 A moulded commutator is made from a solid blank having segments 4 separated by radial slots 7 and joined by a central hub 3, by moulding a first plastic 8 between the segments and in annular grooves 2 to bond them together independently of the hub, boring out the hub, and moulding a second plastic 10 to form the insulating core of the commutator. Steel reinforcing rings 11 are secured in the grooves 2 by embedding in the second plastic 10 which also fixes the mounting bush 12. Since two moulding processes are used, different plastics having suitable characteristics can be used. The outer surface of the commutator is finally machined to remove the outer layer of plastic 8. The original blank may be machined from the solid or, in a modification, rolled up from a strip of metal having suitable slots. In this case the metal joining the segments is in the form of an external ring, which is subsequently machined off.
Patent GB-1278671-A (GB)
Title: Apparatus for displaying the temperature distribution of a heated body
Inventor: SHIMOTSUMA TERUO
IPC: H04N5/33
Filed: 1969-06-13
Abstract: 1278671 Television NIPPON KOKAN KK 13 June 1969 [15 June 1968] 30188/69 Heading H4F For each of a plurality of regions forming the field of view of a television camera tube, e.g. a vidicon, sensitive to thermal radiation, sample values of the video signal are derived and averaged over a selected time interval, whereby a television display means sensitive to the averaged values provides an image in which corresponding regions each have a hue or brightness determined by the average radiation intensity from the viewed region. As particularly described, a circuit 13 removes the horizontal sync portion of the video signal and circuit 14 controls the tube 11 to maintain the blanking level of the signal constant irrespective of temperature and other changes. The output of circuit 13 is converted to digital form and directed by gates (circuit 20) operated synchronously with the scanning of the tube 11 to memory circuits (circuit 21) each corresponding to one discrete region of the field of view, Fig. 3 (not shown). As shown, nine gates and memory circuits are provided, for dividing the field into three horizontally and vertically. A further part of circuit 21 averages the contents of each memory, scans the averaged values and converts the scanned signal to analogue form, which may be recorded on tape. In a further circuit 22, the analogue signal is fed to discriminator circuits to provide an output signal characteristic of the one of a plurality of adjacent ranges within which the instantaneous signal amplitude falls. The characteristic output signals may be combined to give a "stepped" video signal, Fig. 2c (not shown), which is displayed on a monochrome tube 23 as regions of varying brightness, or each signal may appear on a separate output for feeding to a colour display tube to produce a separate distinct hue. Two groups of memory circuits may be provided for reducing the time between successive averages, but an instantaneous check on the "quantized" signal form is provided by a circuit 16 and tube 17 similar in operation to circuit 22 and tube 23 but receiving the output of circuit 13 directly. A further monitor 15 displays the video signal in normal form.
Patent GB-208144-A (GB)
Title: Improved treatment of protein matter of animal origin for industrial purposes
IPC: A23J1/04
Filed: 1923-11-30
Abstract: Fish and fish or animal offals are treated to obtain food, fats &c. by a process of digestion, the action of undesirable bacteria being checked by the use of nitrochloroform or its homologues. The skeleton and like parts are separated after the treatment and used for manure or in making glue.  The nitrochloroform is removed from the products by evaporating in thin layers under a stream of air.ALSO:Fish or fish and animal offals are treated to obtain food, fats, &c. by a process of digestion, the action of undesirable bacteria being checked by the use of nitrochloroform or other volatile antiseptic substance.  The skeleton and like parts are separated after the treatment and used for manure or in making glue.  The finely-divided matter separated from the skeleton is filtered and the filtrate separated by decantation into two portions, the heavier of which consists chiefly of amino-acids. The nitrochloroform is removed from the products by evaporating in thin layers under a stream of air, and from the fats by heating to 100 DEG  C.ALSO:Fish or fish and animal offals &c. are treated to obtain food, fats &c. by a process of digestion, the action of undesirable bacteria being checked by the use of nitrochloroform or its homologues.  The skeleton and like parts are separated after the treatment and used for manure or in making glue. The finely divided matters separated from the skeleton &c. are filtered.  The residue may be used as a grease or may be dried and separated by known fat solvents into a nitrogenous portion and a fatty portion. The filtrate is separated by decantation into two portions, one of which is a fatty liquid containing hydrocarbons. The nitrochloroform is removed from the products by evaporating in thin layers under a stream of air, and from the fats by heating to 100 DEG  C.
Patent GB-360604-A (GB)
IPC: D06C7/00
Filed: 1930-10-09
Abstract: 360,604. Sizing yarn. BERGMANN, A., 19, Place iu Chapitre, Rheims, France. Oct. 9, 1930, No. 30297. Convention date, April 23. [Class 140.] The yarn threads pass over tensioning rollers 21 .. 24 and through a sizing vat, having an electrical heating resistance 29 and a removable copper size vessel 28, and a slot 16 into the drying chamber through which it passes in a zig-zag path over rollers 12, Fig. 4, and between baffles 11 in counterflow to a current of hot air to an outlet slot 17 with which is associated a tensioning roller 32 and a comb 34. The air is forced by a fan 9 disposed beneath the chamber through a compartment 7 containing electrical resistances 19 into the drying chamber. The walls of the drying chamber, which is mounted on wheels, and the compartment 7 consist of wood 1, Fig. 5, lined with asbestos panels 2.
Patent GB-364204-A (GB)
Title: Improvements in or relating to the purification of petroleum and petroleum distillates
IPC: C10G19/06
Filed: 1930-10-10
Abstract: Petroleum or its distillates are purified by treatment first with sodium plumbite or "Doctor" solution, and then with chlorine or a chlorine compound such as sodium hypochlorite. 0,2 Grams of hypochlorite per litre of oil is suitable.
Patent GB-338666-A (GB)
Title: Improvements relating to squeegees for use in cleaning windows and like surfaces
IPC: A47L1/06
Filed: 1929-10-08
Abstract: 338,666. Bell, W. Oct. 8, 1929. Fixing by separate sockets with flange attachments.- A squeegee for cleaning windows and like surfaces comprises a plurality of strips 2, 3, Fig. 3, of rubber &c. spaced as shown between parts 4, 5 of a holder consisting of a metallic stamping 10 also forming a socket for a handle and having its edges with interlocking parts 6, 9, Fig. 2. Reference has been directed by the Comptroller to Specifications 18981/08; and 321,348, [Class 19, Brushing &c.].
Patent GB-376599-A (GB)
Title: Process of preparing a physiological compound of gastric mucin, and physiological mucin preparation produced thereby
IPC: A61K35/38
Filed: 1931-11-03
Abstract: Gastric mucin, suitable for preparations for internal use, is obtained by extracting stomach linings, preferably of hogs, with aqueous acid, e.g. hydrochloric acid, filtering, adjusting the acidity to the isoelectric point of the mucin and precipitating the mucin by the addition of a water soluble organic liquid such as alcohol or acetone.  The precipitate is treated with a compound such as sodium carbonate or bicarbonate in aqueous suspension to form a mucin salt which is separated by decanting and draining and is then dried.  The potassium and lithium compounds may also be prepared in a similar manner.  The substances are stated to be efficacious in the treatment of acidity of the stomach.ALSO:Gastric mucin, suitable for preparations for internal use, is obtained by extracting stomach linings, preferably of hogs, with aqueous acid, e.g. hydrochloric acid, filtering, adjusting the acidity to the isoelectric point of the mucin and precipitating the mucin by the addition of a water soluble organic liquid such as alcohol or acetone.  The precipitate is treated with a compound such as sodium carbonate or bicarbonate in aqueous suspension to form a mucin salt which is separated by decanting and draining and is then dried.  The potassium and lithium compounds may also be prepared in a similar manner.  The substances are stated to be efficacious in the treatment of acidity of the stomach.
Patent GB-262442-A (GB)
Title: Improvements in or relating to the manufacture of photomechanically made ready curved printing plates
IPC: B41M9/04
Filed: 1926-12-02
Abstract: 262,442. Lippmann, A., (trading as Kohler & Lippmann). Dec. 2, 1925, [Convention date]. Make-ready arrangements.-In the production of half-tone printing-plates made-ready for printing, for use in rotary newspaper or other printing- machines, exactly registering images are produced on the front and back of a plate photographically, that on the front being prepared from a negative taken through a screen in the usual way, and that on the back being prepared from a negative taken without a screen. The plate is then etched and is used to impress a flong for the production of curved stereotype plates.
Patent GB-637170-A (GB)
Title: Improvements in or relating to roads
IPC: E01C5/08
Filed: 1946-10-14
Abstract: 637,170. Surface-water drains. MOTLEY, L. Oct. 14, 1946, No. 30540. [Class 33] [Also in Group X] In a longitudinally arched road structure, surfacewater from gutters 28 is led by conduit 29 into a channel or receptacles 27 and thence by pipes 30 to drainage pipes 31.
Patent GB-1304579-A (GB)
IPC: D04B15/66
Filed: 1970-06-24
Abstract: 1304579 Valves ELITEX-ZAVODY TEXTILNIHO STROJIRENSTVI GENERALNI REDITELSTVI 24 June 1970 [30 June 1969] 30549/70 Heading F2V [Also in Division D1] A circular knitting machine (Division D1) comprises pneumatic transmitters, e.g. valves 19, connected to a common pressure source and having mechanical sensors 23 responsive to information on the surface 12 of a programme device and actuating pneumatic action members 7, 8 which control members e.g. needle cams 5. Each valve 19 comprises a rod 22, which is engaged by a sensor 23 and carries a ring 27 engaging a spring 29 within a valve body 26 having an exterior ring 30 with sealing projections 32, 33. Body 26 is mounted with ring 30 in a chamber 39 formed between two joined valve parts 34, 35 so that it may either close an opening leading to exhaust openings 40 or an opening into a rear chamber 38 into which pressure P x  is continuously fed. Chamber 39 is also connected by an outlet 21 to members 7, 8 so that pneumatic signals may be fed to these.