baber/WOPTO huggingface dataset:
Patent GB-1497489-A (GB)
Title: Boiling heat transfer process
IPC: F28F13/18
Filed: 1976-04-13
Abstract: 1497489 Heat exchange BORG-WARNER CORP 13 April 1976 [28 April 1975] 15117/76 Heading F4S [Also in Division C7] A process for transferring heat from a warm fluid to a boiling liquid comprises providing a heat exchange apparatus with a thermally conductive wall plated with a dendritic or nodularized metallic coating on one side, the coating having macroscopic promontaries which extend generally normal to the wall surface, are irregularly arrayed and having terminal portions deformed laterally in a plane parallel to the coating; completely covering the coating with the liquid and contacting the other side of the wall with the warm fluid. The coating is stated to enhance the formation and discharge of vapour as bubbles emerging over the surface covered by the coating.
Patent GB-440086-A (GB)
Title: A photographic method of colour separation for colour printing
IPC: G03F3/06
Filed: 1935-05-24
Abstract: 440,086. Producing photo-mechanical printing-surfaces. ELSWORTH, J. R., 5, Birkenshaw Gardens, Uddingston, Lanarkshire. May 24, 1935, No. 15132. [Class 98 (ii)] Colour separation dispositives for use in colour printing by photo-mechanical processes are produced by copying in a camera the following combinations; the blue colour-component negative and a diapositive made from the yellow colour-component negative ; the yellow colour-component negative and a diapositive made from the red colour-component negative ; and the red colour-component negative and a diapositive made from the blue colour-component negative. In taking the colour-component negatives, a colour chart prepared by printing four strips yellow, red, blue and black with the inks to be used is placed beside the object and four negatives are made on panchromatic plates by the use of suitable filters.
Patent GB-665498-A (GB)
Title: Improvements in and relating to wind drift computers for bomb sights
IPC: F41G3/24
Filed: 1949-06-07
Abstract: 665,498. Bomb sights. SVENSKA AEROPLAN AKTIEBOLAGET. June 7, 1949. [June 7, 1948] No. 15169/49. Class 92 (ii). A device for imparting to a bomb-sight the necessary corrections for the wind effects during dive bombing consists of a gyroscope whose axis can be set in a direction parallel to the direction of the wind, and a device which is adjustable in accordance with the wind force and which combines with the gyroscope to impart the required corrections to the line of aim. In the construction shown in Fig. 3 the gyroscope 3 is carried by a guide 2 which pivots at 37 on a bracket 1 which can rotate about a vertical axis 36. A slide 4 carrying'an aiming device 10 is movable along the guide and in use is displaced'from a datum line by a distance which is a function of the speed of the wind.' With such setting and when the guide is at parallel to the direction of the wind, in which direction it is maintained by the gyroscope, the device 10 combines with a lens 11 of the bombsight to provide the required correction. In a modification the slide is linked to a mirror in the signalling system. In another construction, Fig. 5, rheostats 13, 15, 16 and movable contacts 14, 17, 18, are associated with the gimbal ring 11 of the gyroscope 3, the rheostats being wound in accordance with trigonometrical functions of the angles between the gyroscope axis and the upright and lateral axis of the aircraft. The rheostats 13, 16 are arranged in one bridge circuit and the rheostat 15 in another, and both circuits include a rheostat 19 which is set in accordance with wind velocity. In use the gyroscope is set with its axis parallel to the direction of the wind in which direction it is maintained by the gyroscope. Any subsequent angular movement 2 of the aircraft which produces, say, a relative movement about the axis 12 of the gimbal ring 11 results in a variation in the rheostat 13 proportional to sin x. This unbalances the bridge circuit and current flows through a relay 23 which closes the circuit of a motor 25. This motor serves, by moving a contact 38 over a rheostat 20 to restore balance to the bridge circuit, and simultaneously by means of a rack 40 and slotted arm 28 moves the arm 27 of a motor 5 in the sighting system to introduce the necesary correction. A second motor 26 and a relay 24 functions in a similar manner when the gyroscope moves about its other axis.
Patent GB-734018-A (GB)
Title: Improvements in or relating to gas turbine engines
Inventor: COOK HENRY
IPC: F02K3/04
Filed: 1952-06-17
Abstract: 734,018. Gas turbine jet propulsion plant. ROLLS-ROYCE, Ltd. June 5,1953 [June 17, 1952], No. 15278/52. Class 110 (3). A by-pass gas turbine engine has pressuresensitive means sensitive to the rate of change of pressure in the by-pass duct which reduces the fuel supply when the pressure in the by-pass duct falls at or above a selected rate of fall of pressure. A by-pass gas turbine engine is defined as one having a compressor system including low and high pressure stages, combustion equipment connected to the outlet of the high pressure compressor stage, turbine means to drive the compressor system, a turbine exhaust duct and a by-pass duct fed with a proportion of the compressed air delivered by the low pressure compressor stage, which discharges into the turbine exhaust duct or directly to atmosphere via a propelling nozzle. Air compressed in the low pressure compressor 11 is divided. Part flows to the high pressure compressor 13 feeding the combustion equipment 15 and part flows through a by-pass duct 23 which opens into the turbine exhaust pipe 20 or, as shown, into the atmosphere through an auxiliary propelling nozzle 23a. The combustion gases from the equipment 15 pass to a turbine 18 having two independent rotors 18a, 18b. The rotor 18a drives the high pressure compressor 13 and the rotor 18b the low pressure compressor 11. Fuel is supplied to the combustion equipment 15 from a tank 24 through a shut-off cock 25, fuel pump 26, throttle valve 27 and shut-off cock 40. The cock 40 is actuated by a spring-loaded piston 30 contained in a cylinder 31. The two ends of the cylinder are connected by a passage 34' containing a fixed area orifice 36. The righthand end of the cylinder is connected to the by-pass duct 23 by a connection 37. The effective areas of the two sides of the piston 30 and the orifice 36 and the strength of the spring 32 are so chosen that if the pressure in the duct 23 falls rapidly, the pressure in the space 33 falls rapidly relative to that in the space 35 and the piston moves against the action of the spring 32 to close the cock 40. The piston 30 may be connected to the cock 40 through a toggle mechanism or an electrical switch controlling a relay or any other convenient servo-mechanism. In a modification, the spring 32 is omitted and the connection 37 made to the space 35. In another arrangement the area of the orifice is made variable by a needle valve connected to a capsule responsive to the ambient atmospheric pressure so that the effective area is reduced as the ambient pressure decreases.
Patent GB-992086-A (GB)
Title: Improvements in gas burners
IPC: F23D14/10
Filed: 1963-04-18
Abstract: 992,086. Gas burners. JUNKERS & CO. G.m.b.H. April 18, 1963 [April 28, 1962], No. 15334/63. Heading F4T. An elongated gas burner made of sheet metal and having a row of gas outlet apertures 12 along its top has inwardly directed recesses 13, 131 of triangular cross-section in its side walls 14, 14<SP>1</SP> and a gas inlet at its mid-point. The recesses extend along the burner and their depth varies from zero at either end to a maximum at the centre, and the bottoms of the recesses may be either flat or stepped. In a modification opposite recesses meet at the longitudinal centre of the burner at several points. In a further modification, Fig. 6, auxiliary gas outlets 24, 24<SP>1</SP> are formed between the top edge of horizontal bars 21, 21<SP>1</SP> and the top edges of the recesses. The gas outlets 24, 24<SP>1</SP> are spaced between the burner apertures 12 and are fed with gas through throttle bores 23, 23<SP>1</SP>.
Patent GB-1037030-A (GB)
Title: Improvements in or relating to bacteriostatic compositions
IPC: H04M17/02
Filed: 1964-04-14
Abstract: Organo-tin compounds of formula <FORM:1037030/C2/1> wherein R is a t-amyl, t-butyl or neopentyl radical and y is 1 to 2 may be prepared by reacting the corresponding dialkyltin dihalide with a base according to the following reaction:  <FORM:1037030/C2/2> wherein R is defined as above, X is a halogen atom and M is an alkali metal cation or ammonium. Tin compounds wherein y is greater than 1 may be prepared by drying an aqueous solution of R2Sn(OH)2 and further dehydrating this compound, e.g. 2R2Sn(OH)2 --> <FORM:1037030/C2/3>ALSO:A water-dispersible bacteriostatic composition comprises a solution in tetrahydrofuran of a bacteriostatic material of formula:  <FORM:1037030/A5-A6/1> wherein R is t-butyl, t-amyl or neopentyl radical and y is 1 to 2, or an alkali metal salt thereof.  The growth of bacteria in a bacteria-infected medium may be inhibited by treating said medium with the above-mentioned bacteriostatic material in the form of a solid or a concentrated solution.
Patent GB-295372-A (GB)
Title: Improved plastic composition and process for manufacturing same
IPC: C04B26/22
Filed: 1928-05-25
Abstract: 295,372. Janlet, G. F., and Pardoen, O. Aug. 11, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Fibrous plastic compositions.-Asbestos powder (5 parts) is mixed with a lamellate mineral (2 parts), " stearine vegetable gum," or oxides of lead &c. (1 part), and linseed oil (1 part). The hardening of the mass as the oil becomes oxidized can be retarded by adding alcohol or ether, or the hard mass can be worked back to a paste with alcohol. The composition, which is stated to be incombustible, acidresistant, and a bad conductor, can be moulded or rolled into sheets and re-inforced with metal. Reference is made to a treatment with dilute sulphuric acid to remove grease.
Patent GB-747850-A (GB)
Title: Improvements in paper tape for use in apparatus for recording data
Inventor: BIHALY LAJOS
IPC: G01D15/34
Filed: 1951-02-28
Abstract: 747,850. Feeding webs. INDUSTRIAL ACCOUNTANCY PARTNERSHIP, Ltd. May 28, 1952 [Feb. 28, 1951], No. 15640/55. Divided out of 747,812. Class 100 (1). A paper tape is provided with two longitudinal lines of perforations adapted for engagement with the spaced apart teeth of a drive sprocket, the perforations of each line being dimensioned and/or spaced apart differently in order that the tape may be inserted with correct register into a machine carrying the drive sprocket. As shown, a tape 29 has a repetitive pattern 292 of perforations 294, 293 at one margin and perforations 291 at the other margin. One end of each of the perforations 294, which is larger than the perforations 293, lies opposite the corresponding end of one of these perforations, thereby preventing insertion of the tape in a position displaced any distance except for a whole number of pattern lengths. Since the perforations 293 and 291 at either edge are differently spaced the tape cannot be inserted in the machine when reversed edge for edge. Specification 747,812 is referred to.
Patent GB-682055-A (GB)
Title: Microwave antennas
IPC: H01Q13/20
Filed: 1951-07-02
Abstract: 682,055. Aerials. NATIONAL RESEARCH COUNCIL. July 2, 1951 [March 21, 1951], No. 15687/51. Class 40 (vii). Relates to directive microwave aerials of the type disclosed in Specification 669,463 comprising a rectangular wave-guide with a plurality of longitudinal resonant slots 11 spaced longitudinally in one of the broad faces 1, 2, adjacent slots lying on opposite sides of the centre line 13 of the broad face so that adjacent slots are coupled to the guide in reverse phase relationship and the spacing between the centre of adjacent slots being less than 7/8 As and preferably equal to 1/2 Ag, where As and Ag are the wavelengths in free space and in the guide respectively. According to the present invention, the side lobes produced by such an aerial are reduced by extending a pair of parallel plates 30 from the face 12, the plates being parallel to the centre line 13 and spaced one on either side of the series of slots, the distance b between the plates being less than 1/2 #s and the length of the plates c in a direction normal to the face 12 being at least As. Diverging plates 31 are fixed along the outer edges of plates 30 and the wave-guide is terminated by a reflecting plunger spaced 1/4 #g from the centre of the end slot. Specification 681,697 also is referred to.
Patent GB-931173-A (GB)
Title: Improvements in and relating to chairs
IPC: A47C7/48
Filed: 1961-05-02
Abstract: 931,173. Convertible chairs. E. COOKEYARBOROUGH. May 2, 1962 [May 2, 1961], No. 15774/61. Class 52 (2). A chair comprises a seat 1, a frame structure 2 and a panel 5 pivotally mounted on back members 4 of the frame structure for swinging movement through an arc of approximately 270 degrees between a vertical position, where it serves as a back support and a horizontal position overhanging the chair seat, bracket arms 6 being provided for supporting the panel in its horizontal position, the arms 6 being provided with lugs 12 to limit the swinging movement of the panel.
Patent GB-258823-A (GB)
Title: Improvements in and connected with latches for doors and the like
IPC: E05C3/14
Filed: 1926-06-23
Abstract: 258,823. Crowe, G. E. W. June 23, 1926. Latches, lift; striking-plates for latches.- Stamped sheet-metal latches e are mounted in stamped casings a so that a projection j on the latch engages a recess i in the casing to form the pivot, and a projection o on the latch engages over an abutment p on the casing in the inoperative position to hold the latch in this position till the door is closed. A spring k acting between an abutment l on the latch and the casing tends to hold the latch in inoperative position. The striking-plate h has a projection q for disengaging the projection o, p when the door is slammed and an incline n tending to re-engage them when the door is opened.
Patent GB-420050-A (GB)
Title: Improvements in or relating to cultivator attachments for tractors
IPC: A01B33/08
Filed: 1934-05-28
Abstract: 420,050. Machines for working land. PEDERSEN, D. C., 61, Smedelundsgade, Holbaek, Denmark. May 28, 1934, No. 15818. [Class 6 (i)] In cultivator attachments for tractors in which a tiller drum is pivoted about and driven by a driven main shaft parallel to it, known means are detachably fitted at one end of the main shaft for connecting it to the drum shaft and for driving the latter while at the other end a fixed journal in line with the main shaft pivotally supports a simple divided bar provided with a neck bearing for the drum shaft, sliding movement of the bar on the fixed journal normally being prevented by a movable stop. The main shaft 4 is driven from a worm shaft 3 by bevel gearing in a casing 7. The known transmission means comprises chain gearing 8, 9, 11 enclosed in a tube 12. The latter is provided with a bearing part 14 encircling a bearing box 15 for the shaft 4 and the chain wheel 8 is detachably secured on the end of the shaft 4 by a nut 17 which is accessible after removing a cover 18. The fixed journal 21 for the divided bar 24, 25 is rigidly connected with the gear casing 7, and a movable collar 23 normally prevents movement of the bar along the journal. The tube 12 and bar 24, 25 are connected by a bolt 27 fastened to a chain 29 which regulates the depth of work. Part of the weight of the cultivator attachment is carried by chains 30 connected to springs. The cultivator attachment is removable after the nut 17 and lever 18 are removed, the collar 23 loosened, the supporting-chains unhooked, and the bar 24, 25 divided by removing bolts 28. Where the square tiller shaft 10 passes through the bearing in the bar 24, 25 it is encircled by a slidable cylindrical body 32 connecting together two conical members 33 engaging in slidable hollow conical members 35 fixed in the tubular body parts 34 of the tiller. A single spring 36 presses together all the clamping members throughout the length of the tiller drum, and thus connects the tubular parts 34 to the shaft 10.
Patent GB-918222-A (GB)
Title: Improvements in or relating to cooling systems
IPC: F01P11/02
Filed: 1961-05-02
Abstract: 918,222. Radiators for motor vehicles. FORD MOTOR CO. Ltd. May 2, 1961 [May 2, 1960], No. 15822/61. Class 64 (3). A pressurized engine cooling system has, extending from a radiator, a filler spout 19 containing a seat 23, a bleeder tube 26 connecting the seat to the interior 17 of the radiator, a pressure cap 24 removably connected to the filler spout and having a seal 27 engageable with the seat when the cap is turned to a closed position. The pressure cap may be of known type wherein when the cap 24 is rotated one half-turn pressurized coolant vapour is exhausted through the overflow tube 25 before the cap is moved completely from the spout. In the form shown, when the pressure cap is removed, openings 28 and 29 are exposed to the atmosphere so exhausting air from the main radiator 17 and the air accumulation compartment 16 which is defined by the partition 15. When the cap is replaced, the bleeder tube 26 and filler neck 20 are closed by the seal 27, which is urged into engagement with the seat by the spring 30. The seal comprises a gasket 31, a bottom plate 32 and a supporting member 33. In another embodiment, Fig. 3 (not shown), the gasket has tapered sides to co-operate with the tapered sides of the seat. This construction reduces spillage and clogging of the bleeder tube. Specification 918,221 is referred to.
Patent GB-931854-A (GB)
Title: Metallized tantalum capacitor
IPC: H01G9/00
Filed: 1961-05-02
Abstract: Relates to a dry capacitor containing a tantalum anode with an anodic oxide film thereon which has a metal counter electrode plated on the said oxide film by surface catalysed chemical reduction.  Tantalum in the form of a sheet, wire or porous plug is degreased by means of a solvent or chromic acid, chemically or electrolytically etched and polished and leached in boiling water. The tantalum is then anodized using sulphuric acid as electrolyte, the applied voltage being gradually raised to between 80 and 130 v., to produce an oxide film about 2800  thick.  This film is then activated by successive immersion in acidified aqueous stannous chloride, aqueous silver nitrate and acidified aqueous palladium chloride.  The counter electrode, which may be of silver, nickel, cobalt or palladium or a nickel cobalt alloy is plated by surface catalysed chemical reduction (electroless plating) using suitable bath solutions, which contain salts of the metals in warm or hot acid or alkaline solution.  If the anode is in the form of a porous plug plating may be carried out by vacuum impregnation.  To make a suitable contact with the plated metal it is coated with a further conducting layer, e.g. colloidal graphite, gold leaf or silver paint.  Compositions of suitable electroless plating baths are given and certain electrical properties of different capacitors according to the invention are compared.
Patent GB-365948-A (GB)
Title: Towing device for trawl nets
IPC: A01K73/045
Filed: 1931-05-30
Abstract: 365,948. Trawling-gear. V. D., Ltd., 54, Victoria Street, London. May 30, 1931, No. 15907. Convention date, June 26, 1930. [Class 48.] The net cable in trawling-gear according to Specifications 209,032, 210,396, and 232,914, [all in Class 48, Fish &c.], is secured by a ring 8 to a removable pin 9, Fig. 1, or to a pivoted bar, which extends across an aperture 6 in the shear board. Alternatively a stop 20, Fig. 3, engages a small aperture 21. When the net cable 2 terminates in a crow-foot connection two pins are provided or the ends of the crow-foot engage a projection 35, Fig. 5.
Patent GB-202768-A (GB)
Title: Improvements in and relating to semi-automatic electric lighting systems and switch boards therefor
IPC: H02J7/00
Filed: 1922-06-08
Abstract: 202,768. Webber, Ltd., M., and Ball, R. S. C. June 8, 1922. Switchboards for self-contained lighting plants are fitted with a dynamo starting switch 3, an end-cell regulating switch 4, an ampere hour meter 14, a voltmeter 21, a voltmeter switch 13, a stopping switch 5, and fuses 10, 11.
Patent GB-553800-A (GB)
Title: Improved method and apparatus for separating the constituents of gaseous mixtures
IPC: F25J3/04
Filed: 1941-12-11
Abstract: 553,800. Separating gases by liquefaction. LINDE AIR PRODUCTS CO. Dec. 11, 1941, Nos. 15961 and 15962. Convention dates, Nov. 15, 1940. [Class 8 (ii)] Impurities of relatively high boiling point such as carbon dioxide and hydrocarbons are removed from air &c. to be rectified'by cooling the mixture to liquefy it in part, separating the gaseous part and vapourizing the bulk of the liquid part to concentrate the impurities in the liquid residue and rectifying the two gaseous fractions so produced. Fig. 1 shows apparatus in which compressed air after cooling by separated nitrogen in an exchanger 12 is divided, part being cooled in a second exchanger 16 and part in an expansion motor 22 and both entering a scrubber 19 from which the gaseous portion passes to the first stage of a rectifier while the liquid is mostly revaporized in a vaporizer 39 where it condenses gaseous oxygen issuing from the second stage, the vapour so produced passing by a pipe 49 into the second stage of the rectifier. The impurities are drained off by a connection 50; additional liquid may be supplied to the vaporizer from the first rectification stage by a valved pipe 51. Nitrogen issuing from the second stage may cool liquid nitrogen passing through a pipe 34 to the second stage before passing to the exchangers 16, 12. In another form, separate portions of air may be compressed to different pressures, the high-pressure air passing through an exchanger and being expanded into a scrubber and the low-pressure air passing through the same and a second exchanger to a second scrubber comprising a preliminary rectifier into which the liquid from the first scrubber is delivered after expansion, while the gas from the first scrubber passes through a coil, heating the liquid in the second scrubber, and after expansion into the first stage of the main rectifier. The gas from the second scrubber also enters this first stage. The air delivered to the scrubber may be substantially free of liquid, the scrubber then consisting of a rectifier having a condenser in its upper end into the space around which part of the liquid collecting in the scrubber is expanded, this liquid being thus vaporized and condensing the gaseous portion. The vapour from around the condenser and the expanded condensate are both passed into the second rectification stage. In a further modification, part of the compressed air before passing through an expansion valve into the scrubber is led through an evaporating coil in the rectifier and after expansion joins the air which has passed through the expansion valve to enter the scrubber.
Patent GB-1511645-A (GB)
Title: Sickle cell anaemia treatment
IPC: C07C65/21
Filed: 1974-05-31
Abstract: 1511645 Compositions for use in sickle cell anaemia treatment UNIVERSITY OF IFE 7 May 1975 [31 May 1974] 15999/74 Heading A5B  Pharmaceutical compositions, for use in treating sickle cell anaemia, comprise a pharmaceutically acceptable vehicle and at least one antisickling agent of the formula: where R<SP>1</SP>, R<SP>3</SP> and R<SP>4</SP> are the same or different and represent hydrogen, methyl, ethyl or acetyl groups; R<SP>2</SP> is a hydrogen, methyl or ethyl group and m, n and p represent zero or one, except that m and n are not simultaneously zero.