baber/WOPTO huggingface dataset:
Patent GB-469008-A (GB)
Title: Improvements in rotary compressors
IPC: F01C3/06
Filed: 1935-10-16
Abstract: 469,008. Rotary engines. COLEMAN, C. J. Oct. 16, 1935, Nos. 28547/35, 1652/36, 7230/36, and 10468/36. [Class 110 (ii)] The engine or pump comprises a rotor d to which two radial vanes k are attached, a casing having conical walls e, f and a disc i integral with a sphere g which is attached to a shaft h. The vanes slide through slots in the disc during rotation, and make line contact with the walls e, f. Valves may be provided in the inlet and outlet ports in the conical side walls. The space on one side of the disc may be used as a motor, and the other side used as a compressor. The disc may have an outer ring affixed to it for strengthening purposes. Fig. 23 shows a means of compounding in which working fluid expands in spaces A, B, C, and is exhausted to 2, while the fluid to be compressed enters the largest space C<1>, and afterwards passes through the spaces B<1>, A<1>. Lubricant may be led to cavities in the hub g and distributed through ducts to various surfaces. Fig. 13 shows a pair of vanes comprising two side frames with arms 39, 40 ; 41, 42 ; connected by arcuate portions 43, 44. Plates 45, 46 ; 47, 48 ; are secured to the frames, and springs 49 press the sides apart to contact with the walls e, f. An aeroplane engine exhaust may supply the driving fluid for the engine.
Patent GB-319333-A (GB)
Title: Process for the treatment of marine algae
IPC: C01B7/16
Filed: 1929-09-20
Abstract: 319,333. Compagnie Francaise de l'Iode et de l'Algine. Sept. 20, 1928, [Convention date]. Seaweed, treating.-Salts (including organically held iodine) fats, and pigments are extracted from seaweed by a homogeneous water-organic solvent mixture at a high temperature and pressure. The extraction is carried out in an incompletely filled vessel which rotates on a horizontal axis. Examples of solvent mixtures are ethyl alcohol and water, and ethyl alcohol, acetone and water.
Patent GB-427476-A (GB)
Title: Improvements in or relating to means for regulating the exposure in photographic cameras
IPC: G03B7/085
Filed: 1933-10-16
Abstract: 427,476. Determining photographic exposures. RISZDORFER, O., 1, Gellerthegy Utca, Budapest. Oct. 16, 1933, No. 28649. Convention date, Oct. 15, 1932. [Class 98 (i)] In apparatus in which a photo - electric cell is used to determine the exposure in photographic cameras, the current strength in the cell is adjusted by means positively connected either to the diaphragm or shutter setting means in accordance with the formula J Î TÌ = constant where J is the diaphragm aperture and T the time of exposure. In the form shown in Fig. 1, the shutter setting disc 11 has an eccentric portion 12 constructed in accordance with the formula, provided with teeth engaging a rod 14 having a straight line movement and connected to a second rod 15 toothed to operate the setting ring 17 of the diaphragm of the cell 29. This diaphragm is restored to the zero position by operating the lens diaphragm 18 which is connected to the cell diaphragm by a rack 20. An indicator J having a setting mark is connected to the cell. In a modification, this indicator shows directly the necessary diaphragm aperture, the rack 20 being then omitted. In the modification shown in Fig. 3, the shutter setting disc 79 operates a rack 84 to vary the resistance 20 in the circuit of the cell 53 in accordance with the formula. The resultant current rotates the armature 76 of a D'Arsonval galvanometer connected by cords to a shaft 99 rotation of which moves the plates 68, 69 to vary the aperture between them. The electrical resistance of this arrangement and the mechanical transmission of Fig. 1 may be replaced by a filter screen graded according to the formula and moved in front of the cell during the setting of the shutter or diaphragm.
Patent GB-630256-A (GB)
Title: Improvements in or relating to dry gas meters
IPC: G01F3/22
Filed: 1946-09-25
Abstract: 630,256. Dry gas-meters. COMPAGNIE POUR LA FABRICATION DES COMPTEURS ET MATERIEL D'USINES A GAZ. Sept. 25, 1946, No. 28700. Convention date, Oct. 4, 1945. [Class 54] A dry gas meter comprises a measuring chamber constituted by one or more bellows and an inner casing and attached to a valve plate by means of at least two tubes which serve for the inlet and outlet of the gas, the inlet and outlet tubes being controlled by valves. As shown in Fig. 1 and 2 a measuring chamber 12a is formed between bellows 2 and casing 3, a second measuring chamber 12 being formed between the chamber 12a and the outer casing 1a: the chamber 12a is attached to a valve-plate 6 by means of inlet and outlet tubes 4, 5. In a modification, Fig. 7, two bellows 18, 19, are provided.
Patent GB-898369-A (GB)
Title: Improvements in apparatus for cleaning textile material
Inventor: NUTTER WALTER
IPC: D01G9/00
Filed: 1959-08-21
Abstract: 898,369. Cleaning fibrous material. T.M.M. (RESEARCH) Ltd. Aug. 17, 1960 [Aug. 21, 1959], No. 28733/59. Class 120(1) Apparatus for cleaning fibrous material has a separation edge adjacent the periphery of a beater and means for directing an air current towards the beater between the separation edge and the feed region, so that fibres pass on the beater side of the edge and impurities on the other side. The separation edge 23 is preferably adjustable both radially of the beater 11 and parallel to its periphery. Air directed at the beater 11 passed the edge 23 enters through an air duct 28 and from an area beneath duct 28, the inflow from the latter area being adjustable by a bracket 51. In another arrangement, the duct 28 is subdivided by longitudinal spaced vertical vanes hinged at the end of the duct nearest the beater. Between the duct 28 and feed roller 16 is arranged a bar 18 which may be toothed or plane. Fibres fed by the roller 16 are carried in the beater air flow and maintained in it by air from the duct 28, while the heavier impurities are thrown by the beater below the edge 23. In the form shown, fibres are carried along an outlet duct to a jet section 44 in an opening line where impurities may be ejected through an opening 49, but in a scutching machine fibres are carried from the beater 11 to foraminated cages through a duct of gradually increasing cross-section and having a floor which is upwardly bowed in the longitudinal direction of the duct.
Patent GB-500818-A (GB)
Title: Improvements in automatic selectivity control arrangements for radio receivers
IPC: H03G5/26
Filed: 1937-10-22
Abstract: 500,818. Valve circuits for wireless reception. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 22, 1937, No. 28893. Convention date, Oct. 22, 1936. [Class 40 (v)] A phase shifting network is associated with one of a pair of coupled tuned circuits and signal energy fed thereto from a following amplifier valve in such a way that the effective coupling between the circuits and hence the selectivity thereof is varied with signal strength. As shown, an I.F. transformer 10 feeds a valve 9 of the type described in Specification 500,819, followed by a detector 5 and L.F. amplifier 6. The valve 9 comprises an auxiliary anode 28 from which I.F. energy is led to the junction of condenser 17 and resistance 18 connected in series across the primary 11 of the transformer 10. An A.V.C. bias is applied to the R.F. amplifier 2, frequency changer 3 and the grid 27 of valve 9 which is on the main anode side of the auxiliary anode 28 and controls the signal energy reaching the latter. Specification 442,392 also is referred to.
Patent GB-752433-A (GB)
Title: Improvements in or relating to material for and process of patching cellulosic material
IPC: B27G1/00
Filed: 1954-10-08
Abstract: A wood filling composition for patching open cavities in plywood or board comprises a mixture of a thermosetting resin, fillers and a volatile solvent in such proportions that the composition foams to form finely-divided cells upon the evaporation of the solvent under heat, preferably radiant heat, and expands above the surface of the plywood or board so that, when cured, it can be levelled off by sanding or other means. Three examples of the composition, in parts by weight, are:-Example 1: 100 parts resorcinol resin (60 per cent solids in water and ethyl alcohol), 40 parts plaster of Paris, 40 parts precipitated chalk, 20 parts bark fibre (64 per cent) and lignin (35 per cent) product, 5 parts each of asbestos shorts, walnut shell flour and paraform powder; Example 5: 100 parts urea resin (68 per cent solids in water), 50 parts each of talc and a bark fibre and lignin product, 13 parts diammonium phosphate, 6 parts urea, 0.5 parts disodium phosphate; Example 6: 100 parts melamine resin powder, 88 parts water, 10 parts hydrochloric acid, 50 parts each of a bark fibre and lignin product and of ammonium silicate. Other hardeners specified are formaldehyde for resorcinol resin, alkenesulphonic acid for phenolic resin and also ammonium chloride, boron trifluoride complexes and other acid salts, and suitably buffered acids.  The talc or chalk filler may be replaced by china clay or bentonite; the asbestos and fibre fillers are included to prevent chipping when the cured composition is sanded. The initial viscosity of the composition should be not less than 200,000 centipoises at 25 DEG  C.
Patent GB-1536577-A (GB)
Title: Controlling hydrostatic transmissions
IPC: B60K17/10
Filed: 1976-07-13
Abstract: 1536577 Hydrostatic transmission control CATERPILLAR TRACTOR CO 13 July 1976 [2 Sept 1975] 29049/76 Heading F2W The subject matter of this Specification is identical with that described in Specification 1,536,580 but the claims are directed to the speed limiting and brake controls.
Patent GB-794841-A (GB)
Title: Improved cathode follower
IPC: H03F3/52
Filed: 1955-10-12
Abstract: 794,841. Valve amplifying circuits. TEXAS INSTRUMENTS, Inc. Oct. 12, 1955 5 [Oct. 25, 1954], No. 29088/55. Class 40 (6). In a cathode-follower circuit an auxiliary amplifier is used to reduce the difference between input and output voltages. The output voltage across the cathode resistor 11 of the cathode follower V1 is applied to the grid of one valve V4 of a cathode-coupled pair, while the input voltage is applied to the grid of the second valve V3. An amplified voltage proportional to the difference between input and output is obtained across the load resistor 21 and is applied as a correction voltage to the output, via a further cathode follower V2. The resistances 23, 24 provide for biasing the valve V2; A.C. variations are applied in full to its grid via condenser 26. In a modification, Fig. 4 (not shown), the further cathode follower is placed in series with the anode circuit of the main cathode follower: an additional cathode follower is also inserted between the input and the grid of the second valve in the cathode-coupled pair.
Patent GB-857804-A (GB)
Title: Apparatus for feeding fibreboard or like sheets to sheet-treating chambers
IPC: D21J1/00
Filed: 1958-09-14
Abstract: 857,804. Feeding sheets. SVENSKA FLAKTFABRIKEN A. B. Sept. 14, 1958 [Sept. 14, 1957], No. 29136/58. Class 100(1) Fibreboard sheets 2 are fed sequentially and horizontally over a roller feed table 1 into a cylindrical framework 3, the framework is then rotated through an angle of 90 degrees to bring each sheet therein into the vertical plane, the following sheet fed from the table 1 into the framework 3 displacing the preceding sheet from the framework, and the preceding sheet is then grasped by a pair of vertical feed rollers 18a, 18b and fed into a truck 26. When the truck is full of vertical sheets, it is moved into a treatment chamber where the sheets are moistened, hardened, or otherwise treated. The framework 3 comprises two annular plates 14 resting on driving rollers 15 for intermittently rotating the framework, and a series of angle irons and plates supporting two sheet-guideways 4, 5 which intersect each other at right angles. The guideway 4 comprises sets of rollers 6a, 7a and 6b, 7b, and the guideway 5 comprises rollers 8a, 8b and 9a, 9b, and edge rollers such as 10a are arranged at the outer ends of the guideways. The vertical feed rollers 18a, 18b are not as wide as the sheets 2, are geared together and have hubs 20 rotatably mounted on their shafts each carrying spaced fingers 21. The fingers 21 are rotated independently of the roller shafts through a lever 24 and gears 23 so that they move towards each other and engage behind a sheet 2 which is just leaving the rollers 18a, 18b, and push the sheet clear of the rollers and into the truck 26. The truck 26 is traversed sidewise intermittently to allow the vertical sheets to enter and be stacked therein. As shown, the truck 26 rests on beams supported by rollers running on guide rails arranged below floor level.
Patent GB-632462-A (GB)
Title: Improvements in or relating to gear pumps or motors
IPC: F04C2/08
Filed: 1947-11-03
Abstract: 632,462. Gear pumps or motors. BENDIX AVIATION CORPORATION. Nov. 3, 1947, No. 29309. Convention date, May 17, 1946. [Class 110(ii)] Slots or grooves 60 are provided in the tips or roots of the teeth 34, 36 to allow escape of the fluid trapped in pockets formed by meshing teeth. The slots may be provided in both faces of a tooth so that the pump or motor gear may be used for either direction of rotation. The escaping fluid may pass either to an inlet 16 or an outlet 18. Backlash 63 allows communication between pockets 56, 58 when the gears contact at points A, B.
Patent GB-281249-A (GB)
IPC: C03C10/16
Filed: 1927-11-03
Abstract: 281,249. Patent-Treuhand-Ges. fiir Elektrische Gl³hlampen, (Assignees of Mohr, R., and Becker, H.). Nov. 26, 1926, [Convention date]. Production of metal. - A ceramic material which can be melted and cast is made by fusing siliceous minerals, such as phonolith or its decomposition products, with fluorspar or other fluorinecontaining material in a quantity exceeding 20 per cent of the mixture, and in interrupting the melting before the fusion is changed to a homogeneous glass composition. A suitable mixture consists of 100 parts by weight of phonolith with 50 parts by weight of fluorspar. If the alumina content of the material is insufficient. additional alumina, or clay or kaolin may be added. The alumina facilitates devitrification and enables a finished product to be obtained which resembles porcelain. Alkali may also be added to the materials, and the melting-operation may be prolonged if a finished material of more glass-like character is required.
Patent GB-276614-A (GB)
Title: Improvements in or relating to protective appliances for hightension transformers
IPC: H02H7/04
Filed: 1926-11-23
Abstract: 276,614. Haefely et Cie Akt.-Ges., E. Aug. 30, 1926, [Convention date]. Protective arrangements for transformers.- High tension auto-transformers axe protected against surges by a small transformer a wound for relatively small fraction of the tension of the main transformer and connected as shown in the Figure. The protecting transformer may itself be protected by a spark-gap b. Compensating windings may be provided on the protecting transformer. According to the Specification as open to inspection under Sect. 91 (3) (a) the protecting transformer was designed with large capacity, damping and " inductivity," and for a tension not exceeding 30 per cent of the main transformer. This subject-matter does not appear in the Specification as accepted.
Patent GB-1115924-A (GB)
Title: Information recording system
Inventor: BAIER ANTON
IPC: A24C5/34
Filed: 1965-05-11
Abstract: 1,115,924. Counting-apparatus. K.KORBER. 11 May, 1966 [11 May, 1965], No. 29652/67. Divided out of 1,115,923. Heading G4D. The occurrence of different numbers of signals, e.g. different faults in the manufacture of cigarettes, is registered on corresponding counters. The passage of each cigarette is detected photo-electrically at 70 to close switch 184 momentarily and advance counter 160. A fault in any of four cross-sectional areas energizes an appropriate signal store 63-66 to open-circuit a corresponding resistor 161-164. The potential applied in common to the left hand input of transistor comparators 175-179 is thus varied according to whether 0-4 faults have been detected. The right hand input of the comparators is connected to different potentials at the junction point of resistors 165-169 so that all transistors but one conduct. The non- conducting transistor permits advance of its associated counter 82-86 according to the number of faults 0-4 detected.
Patent GB-931656-A (GB)
Title: Improvements relating to apparatus for preheating finely divided material
IPC: F27B7/20
Filed: 1960-08-29
Abstract: 931,656. Preheating and charging cement raw materials. PREROVSKE STROJIRNY, NARODNI PODNIK. Aug. 29, 1960 [Sept. 3, 1959], No. 29660/60. Class 51 (2). Apparatus for preheating cement raw materials being fed into a rotary furnace 1 comprises a shaft 4 with a tangential lower hot gas supply duct 2 and an upper exhaust duct 3, a feed hopper 19 with delivery pipe 25, annular baffles 26 arranged immediately above the entrances 20 to separating bins 15-18, and control ovoid-shaped baffles 5-7. Charge material entering through pipe 25 divides into large grains which fall through the ascending, whirling hot gas into the hopper base 27 and into small grains entrained by said gases and whirled into a separating bin 18. Fine material passes from the bin 18 through pipe 24 back into the shaft to enter bin 17, passing then successively through pipe 23, bin 16, pipe 22, bin 15 and pipe 21 which delivers it into the furnace along with the large material leaving the hopper base 27 through pipe 28. Feed pipes 25, 24, 22, 21 and 28 all have rotary control valves 29.
Patent GB-465060-A (GB)
Title: Improvements in and relating to cathode ray tube television transmitting apparatus
IPC: H01J29/45
Filed: 1935-10-29
Abstract: 465,060. Cathode-ray tubes. MILLER, H. Oct. 29, 1935, No. 29892. Drawings to Specification. [Class 39 (i)] A television-transmitting tube comprises a screen composed of a conductive signal plate covered with a photo-conductive material, which material is coated with a substance which is a better secondary-electron emitter than the material itself. The photo-conductive material may be a sulphide or oxide of lead, thallium, mercury, cadmium, silver, zinc, copper, or antimony, or a halogen compound of lead, thallium, mercury, cadmium, or silver, or a crystalline form of selenium, sulphur, phosphorus, or iodine. The coating-material may be the borate of an alkali metal such as lithium, applied by spraying. on the screen a 3 per cent aqueous solution, or metallic caesium, distilled on to the screen. The thickness of the coating should be of the order of 10<-6> cm. The invention is applicable to tubes of the kind described in Specification 463,297.
Patent GB-780946-A (GB)
Title: Improvements relating to sealing glands
Inventor: RICHARDS ARTHUR BRUCE FRASER G
IPC: H02G15/013
Filed: 1954-10-18
Abstract: 780,946. Stuffing-box substitutes. BRITISH INSULATED CALLENDER'S CABLES, Ltd. Oct. 17, 1955 [Oct. 18, 1954], No. 29986/54. Class 122 (5). A gland for limiting the escape of fluid under super-atmospheric pressure from a vessel 4, Fig. 1, through an outlet in the wall of the vessel during the passage of a cable therethrough comprises a conical soft rubber bush 7 which points in the direction of travel of the cable and has a centre aperture 9 for the cable, and, surrounding the bush, a toroidal chamber 14 having a soft rubber wall 15 which under pressure exerted by fluid in the chamber is caused to bear resiliently upon the bush to reduce its bore and maintain it in contact with the cable. As shown in Fig. 1, the gland is mounted at the outlet end of a tubular pressure-filled tube 4 of a continuous vulcanizing machine for vulcanizing the rubber covering on a cable passing through the tube and comprises a tube 1 in which is clamped by a screw-threaded ring 12 and intervening washers 22 the bush 7 and ring member 15. The member 15 has a converging bore 20 embracing the bush 7 followed by a bell-mouthed outlet 21, and the toroidal chamber 14 is constituted by a peripheral groove in the member closed by a metal ring 17 serving as a distance piece between the end walls of the groove. Fluid under pressure is supplied to the chamber 14 through an inlet 27, continuous recess 26 and ports 25 in the tube 1, and continuous recesses 23 and ports 24 in the ring 17. If desired, the cylindrical tip of the bush 7 may be made of harder material than that of the body portion and rendered flexible by dividing it by a number of axial slots. The toroidal chamber may, alternatively, be formed by a tube of which the inner wall is of soft rubber and the outer wall of relatively rigid material such as hard rubber, plastics or metal, the two parts being either permanently united or separate. The tube 1 is retained by a screw-threaded cap 39 inside a tube 6 which is connected by a screw coupling 5 to the tube 4, and the passage of fluid from the tube 4 between the tubes 1, 6 is prevented by annular ribs 45 at the end of the tube 1. In the modification shown in Fig. 4, the inner end of the bush 7 is seated upon and against a tapered metal bush 36, metal rings 29, 30 of stepped cross-section are arranged at opposite ends of the soft rubber ring 15, and a single washer 31 having a tapered extension 34 engaging the ring 15 is disposed between the clamping ring 32 and metal ring 30. It is also stated that since the tube 1 is, in effect, an hermetically closed chamber, admission to it of the fluid at a number of points is not essential for obtaining uniform pressure on the bush 7. Specification 780,945 is referred to.
Patent GB-1001869-A (GB)
Title: Method of manufacturing single crystals of corundum
IPC: C01F7/02
Filed: 1961-08-21
Abstract: The invention provides a method for manufacturing single crystals of corundum by a hydrothermal method comprising applying high pressure and high temperature to aluminium oxide or aluminium hydroxide of a uniform grain size of 0.5-40 microns, and heating to a temperature of 400-550 DEG  C. at a pressure of 200-2000 kg./cm.2 and regulating the temperature rise to a rate of less than 2 DEG  C./min. with a corresponding increase in pressure, and maintaining the operating temperature and pressure for at least one hour to convert the raw material into corundum, thereby obtaining single hexagonal crystals of corundum in a uniform shape and size ranging from 1-80 microns.
Patent GB-1035357-A (GB)
Title: Improvements in automatic vulcanizing installations
IPC: B29C33/26
Filed: 1963-07-30
Abstract: 1,035,357. Moulding rubber articles. PARANOVA S.p.A. July 30, 1963 [Sept. 19, 1962], No. 30074/63. Heading B5A. Raw rubber is fed from a hopper 1 to a rolling mill 2 and the issuing rubber strip 3 is cut by a press 4. Moulds 7, mounted on an endless chain 6, and having spring-loaded hinged covers 8 in the open position receive a charge of rubber as they pass under the press 4. The covers are held open by guides 10 and as soon as they have passed the press 4 they are closed by the springs. The moulds then pass through the lower part of a heated tunnel 5, and during this time pressure is exerted on the moulds by springs 12. Ball or roller bearings are provided between the moulds and covers and their respective pressing surfaces. A curved guide 10<SP>1</SP> then reopens the covers, and a plate 13 descends to remove the moulded article, and allow it to fall down a shoot 14 to a conveyer 15. The moulds are cleaned by a brush 19 and suction applied at 20. The mould may be sprayed with a release agent at 21. Scrap material from the ribbon 3 is returned to the hopper 1.