baber/WOPTO huggingface dataset:
Patent GB-629714-A (GB)
Title: Airplane controls
IPC: B64C13/00
Filed: 1947-08-26
Abstract: 629,714. Controlling tailless aircraft. DEHN, S. G. (Northrop Aircraft, Inc.). Aug. 26, 1947, No. 23597. [Class 4] A tailless aircraft is provided with main pitching and rolling control surfaces at the wing trailing edges, and similar auxiliary surfaces, also at the trailing edges, and operable by a separate control member movable by the pilot in the conventional directions for trimming purposes. The aircraft shown in Fig. 1 is fitted with inboard lift flaps 22, main elevons 11, and auxiliary elevons 12 at the wing tips. As shown in Fig. 6, the trimming elevons 12 each comprise a pair of flaps 14, 15 which may be opened to function as rudders. Elevon control system (Figs. 2 and 8).-The elevons 11 are operated as elevators by the fore-and-aft movement of a control column 25 carrying a hand wheel 34, rotation of the latter causing the elevons to function as ailerons. Movements of the column and wheel are transmitted to the surfaces by a crossshaft 26, links 49, 50 and sectors 46, 47 engaging cables 42, 44. As shown in Fig. 8, the latter pass over pulleys 120a carried by a bell-crank 122 and pass through a tension regulator 121a. Movement of the bell-crank operates the control valve 126 of a hydraulic jack 127, 129 by which the elevons are operated. A load release spring 122a is included between the bell-crank and valve. In order to impart " feel " to the controls the column 25 is connected to a rod 65 attached to a diaphragm in a casing 66, one side of the diaphragm being in communication with a ram scoop 69. Rudder control system (Fig. 6).-The rudder flaps 14, 15 are operated by a hydraulic jack 105, through a system of cables passing over pulleys on a bell-crank, the latter operating a control valve in a similar manner to the elevon control system (Fig. 7, not shown). Flap control system (Figs. 10 and 11).-For operation of the flaps 22, two electric motors 137, 138 are provided, operated by a switch 160 and interconnected through differential gearing, whereby in the event of one motor failing the other will operate all the flaps at half the normal speed. The motors drive cross-shafts 140 which operate screw jacks 142 for moving the flaps. A flap position indicator 161 is provided near the control switch 160. Trimming flap control system (Figs. 6, 11 and 12).-The flaps 12 are pivoted on hinges 95 and are operated by electrically-driven screw jacks 166, under the control of a switch arm 175 mounted beside the lift flap control switch 160. The arm 175 may be moved with or independently of the control column 25 and hand wheel 34 in the conventional fore-and-aft and transverse directions to move the flaps simultaneously or differentially for trimming purposes. In the arrangement shown the arm 175 may also be moved to any of four intermediate positions 5, 6, 7, 8 for combined pitching and rolling adjustment. The positions of the flaps are shown by indicators 176,177 operating through position transmitters 171, 172.
Patent GB-1309815-A (GB)
Title: Organotin thiocarboxylates and preparation thereof
IPC: C07F7/22
Filed: 1970-05-15
Abstract: 1309815 Diorganotin thiocarboxylates ARGUS CHEMICAL CORP 15 May 1970 [20 May 1969] 23658/70 Heading C2J [Also in Division C3] Diorganotin monohalide thiocarboxylates of general formula (R 2 SnX.SCO) n R<SP>1</SP>, where n is an integer, preferably 1-4, X is halogen and R, R<SP>1</SP> are organic groups, are prepared by an addition reaction between a monomeric or polymeric diorganotin sulphide and an acyl halide, e.g. at 30-200 C. The halogen atom can be substituted by reacting the compound with active hydrogen compounds, e.g. mercaptoacid esters, mercaptans, thiocarboxylic acids, carboxylic acids and partial esters of polycarboxylic acids, alcohols; in some cases the metal derivative of the active hydrogen compound can be used. Reaction may proceed at below 0 up to 200 C., and may be carried out without separating the monohalide thiocarboxylate from the initial reaction mixture. Similarly, the halogen compound can be reacted with a strong inorganic acid, e.g. HCl, to yield a thiocarboxylic acid. The examples disclose the preparation of the following compounds: dibutyltin monochloride monothiolaurate and monothiostearate, bis- (dibutyltin chloride) thioisophthalate and thioadipate, dibutyltin (isooctyl thioglycolate) monothiolaurate and monothiostearate, bis- [dibutyltin(isooctyl - 3 - mercaptopropionate)]-  thioadipate, dibutylmethoxytin thiolaurate, dibutyltin (isooctyl maleate) monothiolaurate, bis-(dibutyltin thiolaurate) maleate, bis-(dibutyltin thiolaurate) # - mercaptopropionate, thiolauric acid and thiopropionic acid. The Specification claims per se compounds where n = 1-4, Z is halogen or a mercapto acid ester radical; R is a C 1 -C 18  hydrocarbon group, the two groups R being the same or different; R<SP>1</SP> is a C 1 -C 30  alkyl, cycloalkyl or heterocyclic group, optionally substituted and any heterocyclic groups having O or S in the ring and 5-7 ring atoms including 1 or 2 heteroatoms.
Patent GB-720022-A (GB)
Title: Improvements in or relating to hydraulically actuated friction engaging devices
Inventor: HOBBS HOWARD FREDERICK
IPC: F16D25/04
Filed: 1951-10-11
Abstract: 720,022. Friction clutches. HOBBS TRANSMISSION, Ltd. Sept. 29, 1952 [Oct. 11, 1951]. No. 23685/51. Class 80 (2). [Also in Group XXXIV]. In a friction clutch or brake e.g. for a changespeed gear, wherein a driven disc 6 is clamped to a driving housing 10 by liquid pressure applied in a housing-space 22 to act through a rubber-like diaphragm 20, or one or more pistons, and a heat insulator-plate 19, on a presser-plate 18, and one or more (two shown) air cavities 8 in the housing 10 communicate permanently with the liquidpressure space 22 through openings 111 near the outer periphery for aircushioned clutch-engagement, as in Specification 637,269, the crosssectional area of the openings 111 is considerably less than (e.g. less than half) that of the inlet-opening which feeds pressure liquid to the space 22, whereby a reduced engaging pressure can be built up in the liquid-space 22 before that pressure is reached in the air cavities 8, resulting in reduced delay in clutch engagement. Liquid pressure reaches the space 22 from a pump 25, driven by the engine or housing 10, through a manually controlled valve 26 passages 27, 28, and an outwardly spring-pressed pressure-responsive local exhaust-valve, Fig. 2 (not shown), which, together with a centrifugal valve for automatic clutch disengagement at idle speeds, is as described in Specification 628,499. Specification 637,251 also is referred to.
Patent GB-939431-A (GB)
Title: Improvements in or relating to spray evaporators
Inventor: REAVELL BRIAN NOBLE
IPC: B01D1/14
Filed: 1961-06-30
Abstract: A solution of a solid in a liquid is concentrated by introducing the solution into the top of a <PICT:0939431/III/1> chamber 9 in the form of an unsupported liquid-film, which is atomized in a downward direction by blowing hot air against the liquidfilm from a nozzle 4. The film of liquid is produced by pumping the solution through a narrow tube 1 on to a curved plate of fish-tail shape (not shown). The hot air nozzle may also be of fish-tail shape, and it is disposed so that the air-blast discharges directly into the liquid-film as it leaves the plate. Concentrated solution is collected in vessel 12, and part of it is discharged from the system through pipe 14.  Air saturated with vapour is withdrawn from chamber 9 by fan 131, and is introduced into the lower part of tower 15.  As the air flows up the tower 15, it is scrubbed by solution to be concentrated, introduced through pipe 22, which flows downwards over the coke-packing 16.  The preheated solution, withdrawn from the base of tower 15, is pumped, together with part of the concentrated solution withdrawn from the vessel 12, through valve 21 to the feed-tube at the top of chamber 9. The evaporation of solutions of sodium sulphate is referred to.
Patent GB-533374-A (GB)
Title: Improvements in multi-tubular marine boilers
IPC: F22B7/12
Filed: 1939-08-17
Abstract: 533,374. Return-tube steam betters. DANKS OF NETHERTON, Ltd., and DANKS, J. A. Aug. 17, 1939, No. 23787. [Class 123 (ii)] In a marine-type boiler, substantially the whole of the water space is occupied by the furnace flue 2 and the return tubes 5, and a reserve steam and water space is provided by a chamber 7 above the boiler and communicating with it through apertures 9. The boiler may have a double flue pass as described in Specification 429,383.
Patent GB-384620-A (GB)
Title: Improvements relating to mixing rubber
IPC: C08K9/00
Filed: 1932-08-26
Abstract: Mineral constituents of rubber compositions are reduced to colloidal fineness in an impact and shearing mill, mixed with rubber, and the mix is itself reduced to colloidal fineness in a high-speed impact mill.  The invention is particularly applicable to the compounding of fibrous rubber mixes.  Unvulcanized tyrecover clippings are mixed with additional rubber and colloidally ground minerals, and the whole is reduced in a high-speed impact mill.
Patent GB-766879-A (GB)
Title: Method and apparatus for the production of oxygenated mist
IPC: A61M15/02
Filed: 1953-08-31
Abstract: 766,879. Respiratory appliances; producing medicinal aerosols. RIESS, H. Aug. 31, 1953, No. 24002/53. Classes 81(1) and 81(2) Aerosols capable of releasing nascent oxygen upon inhalation into the respiratory passages are made by producing in solution a substance capable of releasing such oxygen under the action of a catalyst, and adding to the solution such a catalyst capable of reducing surface tension in the solution. In the apparatus. shown in Fig. 2 the aerosols are produced in a medicinal liquid 6 in a container 1, the aerosols leaving through a mouthpiece 3 whilst air is admitted to the container through a valve 7-controlled air intake 5. Fig 5 shows the container 1 in pipe-like form, the air inlet tube 5 being vertical, whilst in Fig. 7 the tube 5 is exterior of the container. In an apparatus suitable for forcibly applying the aerosols to the nostrils, or to blow into a room to destroy bacteria, the air tube 5, Fig. 8, has a rubber ball pump 13 and the mouthpiece 3 a tube 11 at the free end of which is a nostril applicator 12. In a modification of this embodiment the positions of the pump 13 and the tube 11 are reversed. In a modified Fig. 5 apparatus holes are provided in the tube 5 both above and below the liquid line. In one method of producing the aerosols a container (Fig. 1, not shown) is filled with 375 c.c. of water, or camomile, or sage tea or any other suitable medicaments. To the liquid is added about 3 grams of sodium percarbonate and about 0.6 grams of catalyst. The latter is based upon a fruit acid, e.g. crystallized citric acid. The latter is wetted with a 5 per cent solution of caustic potash and sprayed with finelydivided potassium osmate to which sodium or common salt is added as a diluent when the catalyst is to be produced in tablet form. The catalyst is finally made stable for preservation by the addition of sodium hydroxide solution.
Patent GB-240092-A (GB)
Abstract: 240,092. Fairweather, H. G. C., (Whittemore, Hulbert, Whittemore, & Belknap). May 12, 1925. Cleaning, fluid-pressure processes for.- A boiler cleaner in which a rotatable blower element 1, Fig. 1, is fed with steam or other cleaning fluid through a goose-neck 2 from a steam-supply valve 3 has this valve controlled by a circular cam 12 with spaced ends 13, 14 rotating with the blower element according to one of the following alternatives : -In the device shown in Figs. 1, 2, and 2a the valve stem 11 is pressed by a heel on a lever 8 pivoted at 9 on a lug 10 of the valve casing, the lever being operated first by a pin 18 on a spurwheel 7 which operates the blower engaging an off-set part 15 of the end of the lever, then by the engagement of the cam end 14 with the face, 17. In the device shown in Fig. 3, the end 20 of the cam 19 engages the end face 23 of the lever, after which the faces 24, 25 come into operation as before. In the device shown in Figs. 4 and 4a the faces 37, 38, 39 at one end of the lever are engaged by the inner face of the cam 27 to open and close the valve, the valve being positively closed by engagement of a pin 43 with an off-set 41 at the other end of the lever. In the device shown in Fig. 5 the cam 46 has a projection 50 which engages an off-set 54 on the end of the lever, after which the end 48 of the cam engages a face 55: and the inner face of the cam a surface 56 as before. In this arrangement the initial opening movement is powerful but slower, and the resistance of the valve spring to the initial movement is made as small as possible by confining the main valve spring 60 in a casing 63 by means of a washer 66 upon which rests a second loose casing 69 surrounding a weather spring 61 surmounted by a washer 67 : thus the initial opening movement is opposed only by the spring 61, the layer movement by the spring 60. In the device shown in Fig. 6 there is a nipple 78 containing packing 79 with which engages a packing gland 80 positioned by a cylinder 82 and pressed by a spring 81. In the device shown in Fig. 7 there is again a nipple 88 containing packing pressed by a gland 90 controlled by a spring 94 but the arrangement here is such that in the closed position of the valve the spring 94 exerts no pressure on the packing gland but in the open position exerts its maximum pressure. A modified form of swivel between the blower element and the gooseneck is shown in Fig. 2 in which the swivel tube 97 rotates within a part 100 preferably integral with the gooseneck and containing packing 99 pressed by a gland 98 acted on by a spring 101. Specification 205,193 is referred to.
Patent GB-189269-A (GB)
Title: Improvements connected with wristlet straps for watches
IPC: A44C5/14
Filed: 1921-09-09
Abstract: 189,269. Machin, E. J., (trading as Heath, Machin & Co.). Sept. 9, 1921. Watches, securing to wrist.-Straps 2 are permanently secured to the loops 6 of a wristlet watch or the hke when the watch is sold, by means of metal strips 3 bent around the loons 6 and around loops 1 through which the straps are threaded. The loop 1 and clip 3 may be formed integral, or the clip may be made from wire.
Patent GB-1458632-A (GB)
Title: Reactive dyeing process
IPC: D06P1/00
Filed: 1974-05-30
Abstract: 1458632 Dyeing natural and synthetic fibres CARPETS INTERNATIONAL Ltd 30 May 1974 [12 June 1973] 24030/74 Heading D1B Natural and synthetic fibres are dyed with dyes whose exhaustion onto the fibres is pH dependant and which are fixed on the fibre at a particular pH, the process comprising (a) immersing the fibres in a dyebath having a pH at which no fixation of the dye on the fibres occurs, (b) adjusting the dyebath to a constant temperature without adjustment of the pH, (c) maintaining the dyebath at the constant temperature and adjusting the pH of the dyebath by the gradual addition of controlled amounts of acid or alkali to a pH at which substantially complete exhaustion of the dye occurs, (d) maintaining the dyebath at constant temperature to allow substantially complete reaction between the dye and fibres. Fixation of the dyes may be at an acid pH the dyebath initially being alkaline. Acrylic fibres containing weak acid groups may be dyed with basic dyes the dyebath initially being acidic and the pH is adjusted with alkali to a value no higher than 7 to effect exhaustion. The constant temperature may be the boiling point of the dyebath. Wool and synthetic polyamides may be dyed by setting the pH to 7.5, raising to the boil for 20 to 30 minutes acetic acid being used to adjust the pH.
Patent GB-885470-A (GB)
Title: Cross-linked alpha-olefin polymers and process for preparing them
IPC: C08L23/20
Filed: 1958-07-25
Abstract: Polymers of alpha-olefines are cross-linked by heating together, to a temperature of from 120 to 200 DEG C., a linear substantially isotactic polymer of an alpha-olefin, an organic peroxy compound, and a substance having at least one <FORM:0885470/IV (a)/1> group in the molecule.  In a modification, the peroxy compound and the polymer may be combined in the form of a peroxidized or hydroperoxidized polymer. The substance having a <FORM:0885470/IV (a)/2> group may be styrene, divinyl benzene, butadiene, vinyl chloride, or an acrylate or methacrylate.  The exemplified <FORM:0885470/IV (a)/3> compound is a mixture of divinyl benzene and ethylvinyl benzene. The peroxy compound may be benzoyl peroxide, tert.-butyl perbenzoate, dicumyl peroxide or di-tert. butylperoxide. Specified polymers are polypropylene and poly-alpha-butene.
Patent GB-532541-A (GB)
Title: Improvements in ionic valves with metal vessels
IPC: H01J13/50
Filed: 1939-08-21
Abstract: 532,541. Metal-vapour apparatus. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Aug. 21, 1939, No. 24075. Convention date, Aug. 27, 1938. [Class 39 (i)] In metal-vapour rectifiers having metal envelopes, the envelope is closed by an insulator 4 preferably of porcelain which is shaped so as to form a container for the cathode liquid 3, such as mercury, and also provide the insulation for the leading-in conductors to the cathode, anode or anodes 1, anode grid 8 exciting anode 7, and igniting anode 10. As shown, the insulator is formed as a cup containing the cathode liquid and has a central tubular extension through which passes the conductor 2 for the anode, the external contact of which is formed by a cap 20 welded to the conductor. The cathode leadin is formed by one or more bores 43 filled with mercury and closed by a contact ring 44. The leads to the electrodes 7, 8 pass through bores in the central column of the insulator and terminate in contact caps. The exciting electrode 10 is carried by an iron rod 9 floating in a mercury pool, and actuated by an electro-magnet 90. The envelope comprises two metal parts 5, 6 welded together, the part 6 being fitted tightly around the insulator. All the joints between the metal envelope and contact members are sealed with a layer of enamel or other moleculary adhering layer. In a modification, Fig. 2, not shown, number of anodes are disposed in recesses in the insulator arranged around a central cup containing the cathode liquid.
Patent GB-1429448-A (GB)
Title: Semiconductor devices
IPC: H01L21/768
Filed: 1974-05-30
Abstract: 1429448 Semi-conductor devices RCA CORPORATION 30 'May 1974 [8 June 1973] 24100/74 Heading H1K An integrated circuit 10 comprises first and second semi-conductor devices 12, 14 in a semiconductor substrate 20, a field insulation 42 between the devices 12, 14 on a surface of the substrate 20 and forming an interface 44 therewith, and impurity ions in the field insulation 42 close to but spaced from the interface 44, the ions being of a polarity to attract carriers from the substrate 20 and isolate the devices 12, 14. The devices 12, 14 may be IGFETs and the impurity ions may be halide ions implanted about 50 to 100 Š from the interface 44. The gate insulation 22, 34 may be silicon oxide or nitride and the field insulation 42 may be silicon oxide. The method of isolation :may be used for isolating IGFETs with channels of either polarity.
Patent GB-1302720-A (GB)
IPC: A01N37/22
Filed: 1970-06-05
Abstract: 1302720 Herbicides containing triazines and acetanilides MONSANTO CO 5 June 1970 [17 Oct 1969] 27258/70 Addition to 1149843 Heading ASE A herbicidal composition comprises as active ingredient a mixture of 1 part of atrazine, ametryne, prometryne, or simetryne and 1 to 5 parts of 2', 6'-diethyl-N-methoxy methyl-2-chloroacetanilide and/or 2', 6'-diethyl-N-butoxymethyl-2-chloroacetanilide.
Patent GB-713926-A (GB)
Title: Improvements in and relating to electric discharge lamps
IPC: H01K1/46
Filed: 1952-09-29
Abstract: 713,926. Discharge lamps. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 29, 1952 [Sept. 28, 1951], No. 24344/52. Class 39(1) A lamp unit comprises a double-ended tubular electric discharge lamp 4 having stems 5 protruding from the ends of its envelope, a light transmitting tubular jacket 1 around the lamp, and bases 3 at the ends of the unit holding the lamp and jacket in predetermined spaced relation, each of the bases comprising a stiff metal protective sleeve 13 around the end portion of the lamp envelope and extending around and beyond the protruding stem 5, and an annular inelastic insulator 16 around the sleeve and tightly secured thereto between the ends thereof by a metal skirt 20 tightly secured to the peripheral portion of the insulator 16 and clamped around the end portion of the jacket 1 whereby the unit is capable of accurate mounting by the sleeves 13, the stems 5 being protected by the sleeves. Each of the end portions of the envelope 4 has a rib 15 extending longitudinally thereon and each of the metal protective sleeves 13 has a slot 14 engaging a rib. The annular insulator 16 of porcelain or lava is held in fixed position on the sleeve 13 by the roll flange 17 on the sleeve wall against which the insulator 16 is held by the metal snap ring 18 forced against the insulator by four protuberances 19 in the sleeve 13 and spaced apart an angular distance of 90 degrees. The metal skirt 20 is tightly secured to the periphery of the insulator 16 by an inwardly extending flange 21 thereof engaging one side of the insulator and by a snap ring 22 inside the skirt 20 and forced against the other side of the insulator by the four indentations 23 spaced 90 degrees apart in the wall of the skirt 20. Each base 3 is secured to the end of the jacket 1 by the portion 24 of the skirt 20 overlapping the end portion of the jacket 1 and clamped thereto by the metal clamping band 25. The portion 24 is provided with longitudinally extending slits 26. A strip 27 of asbestos paper moistened with a solution of sodium silicate is wrapped around the end portion of the jacket 1 before the slit portion 24 of the skirt 20 is slipped over the end of the jacket 1. The envelope 4 is of quartz and the stem 5 comprises a quartz stem tube 6 hermetically united with the envelope 4 and a current conductor extending through the stem and consisting of two stiff wires 7 and 8 of tungsten or molybdenum attached to a thin molybdenum foil strip 9 to which the stem tube 6 is hermetically united. The wire 8 extends into the neck 10 of the envelope 4 to support the electrode 11. The wire 7 is provided with a flexible metal wire 12 attached to the inner surface of the sleeve 13 by silver soldering. The envelope 4 is provided with a starting gas such as argon at a pressure of about 9 to 25 mms. and an amount of mercury sufficient to produce a high pressure unsaturated vapour atmosphere.