baber/WOPTO huggingface dataset:
Patent GB-472567-A (GB)
Title: Improvements in aerofoils with variable camber
IPC: B64C3/50
Filed: 1936-08-31
Abstract: 472,567. Variable - camber aerofoils. LUTTMAN, H. C. Aug. 31, 1936, No. 23758. [Class 4] A hinge unit between the rear spar or subsidiary member of a fixed aircraft component and the spar of a control component is constituted by links-pin jointed at the ends and diagonally connecting the upper and lower booms of the two spars. A rigid control surface BD, Fig. 1, is hinged to a spar AC by pin-jointed links AB, CD, Fairings 1, 2 hinged adjacent to B and D, slide under the surfaces of the main component and over the spar AC. Fairings 1, 2 are acted on to adjust surface B. Two or more sets of links may be added as shown in Fig. 2, in which units BED H, E G H F are added to units A B C D. The units are connected by links A H, C E, B F or D G if symmetrical movement is required or if asymmetrical movement links A H, B F, D B and E H are provided. In a constructional form, Fig. 4, eye bolts at A and C through the top and bottom booms of the rear spar of the main component serve for attachment of the rib links which are made of strip material and have a bushed hole at each end. A rigid trailing edge portion is a flanged pressing. The skin comprises panels 1 to 6, Fig. 5, and a trailing edge panel 7, Fig. 7. The panels are interconnected by piano hinges w, x, y and z, supported by links Dw, Bx, Hy and Ez. The panels are stiffened by angle sections M, N, Fig. 7. with the exception of panels 1 and 2 which are flexible in those parts which slide into the main component. Control forces are applied through the skin by push and pull rods P. The positions of G and F may be interchanged as shown in Fig. 8, so that links DG, EG do not cross. The resulting movement of the trailing component is such as to produce the effect of a servo tab.
Patent GB-1114431-A (GB)
Title: Fuel cell apparatus and method of operation thereof
IPC: H01M8/14
Filed: 1965-06-03
Abstract: 1,114,431. Fuel cells. PROTOTECH Inc. 3 June, 1965 [22 June, 1964], No. 23784/65. Heading H1B. A fuel cell comprising an anhydrous electrolyte of potassium hydroxide, rubidium hydroxide and/or caesium hydroxide containing an alkali metal peroxide and/or superoxide as the oxidant. The peroxide and/or superoxide is formed in situ by the action of atmospheric oxygen. The electrolyte is maintained anhydrous by operation in the temperature range 300-600‹ C. The cathode may be corrugated and made from nickel, gold, platinum, cobalt, iron or aluminium. The cell container may be of aluminium. The electrolyte is agitated in the region of the cathode by vibrating the cathode, stirring, or blowing air into the electrolyte.
Patent GB-732046-A (GB)
Title: Improvements in the mounting of pietures, photographs, designs, letterpress and the like
IPC: G03C11/14
Filed: 1951-10-13
Abstract: 732,046. Display cards. HOARE, R. R. Oct. 23, 1952 [Oct. 13, 1951; May 27, 1952; June 3, 1952; Aug. 14, 1952], Nos. 23903/51, 13352/52, 13890/52 and 20419/52. Class 3 (2). [Also in Group XV] A display device of the kind in which pictures, photographs, designs, or the like are mounted at the back of a transparent sheet of-glass or plastic, e.g. as described in Specifications 575,019 and 576,459, [both in Group XV], is characterized in that the transparent sheet is secured to the backing sheet, or to the design or the like, by a cement adhering more strongly to the transparent sheet than does cellulose nitrate, e.g. unsutured alkyd-styrene copolymer cement or an etherified melamine formaldehyde cement. A polyvinyl butyral cement, a volatile solven solution or plasticized alkyl cellulose, or a polyvinyl acetatealkyd cement may also be employed. Where the subject matter for display is of less area than the backing sheet and transparent sheet, the backing sheet and transparent sheet are bonded together at the marginal edges by the strongly adhering cement, the display matter, if its surface is suitable, being also bonded to the transparent sheet. Where no border is required the subject matter for display is cemented directly to the transparent sheet. The backing sheet is rendered water impervious by making it in the form of laminated paper or thin card, the laminations being secured by a resilient moisture-resisting adhesive. A waterproof layer of foil, preferably metal foil or polystyrene foil may also be included. Where a border is required so that the transparent sheet may be bonded to the backing sheet directly along the marginal edges, a less effective adhesive may be employed for attaching the subject matter for display to the transparent sheet. Preferably this adhesive should be such that it is opaque or translucent when applied but is transparent when dry so that air bubbles may be eliminated before the adhesive sets. For this purpose polyvinyl acetate emulsion may be used. The edge of the device may be taped with adhesive-coated regenerated cellulose tape. Specification 637,063, [Group XV], also is referred to.
Patent GB-1303484-A (GB)
IPC: C08G63/688
Filed: 1970-05-18
Abstract: 1303484 Para-oxybenzoyl copolyesters CARBORUNDUM CO 18 May 1970 [28 May 1969] 23913/70 Heading C3R A p-oxybenzoyl copolyester is made up of recurring units of Formulµ (I), (II) and (III): wherein -X- is -O- or -SO 2 -, m is 0 or 1, n is 0 or 1, the bonds to the benzene rings of Formulµ (II) and (III) are meta or para to one another, preferably para, the mole ratio of (I) to (II) is between 1 : 100 and 100 : 1 and that of (II) to (III) is between 10 : 15 and 15 : 10 and adjacent units are bonded exclusively by ester linkages. The total number of units is 3 to 600 and preferably 30 to 200. The copolyesters are prepared by condensing together p-hydroxybenzoic acid, iso- or tere-phthalic acids and an atomatic diol corresponding to Formula (III), or esters thereof, the hydroxyacid preferably being condensed first with one of the other components to give an intermediate which is then treated with the third component, whereby a polyester having a regular alternation of the three units is produced. The examples describe the preparation of copolyesters by (a) condensation of p-hydroxybenzoic acid with diphenyl iso- or tere-phthalate, or a mixture of the two isomers, in the presence of phenyl acetate, hydrogen chloride and, optionally, a highboiling solvent, followed by condensation of the intermediate products (X), with hydroquinone, resorcinol or p,p<SP>1</SP>-biphenol or (b) condensation of p-acetoxybenzoic acid, p- or m-phenylenediacetate and iso- or terephthalic acid, the acetate esters being added as such or formed in situ from the parent compounds and acetic anhydride.
Patent GB-1314231-A (GB)
Title: Pepsin inhibitors
IPC: A61K38/55
Filed: 1970-05-18
Abstract: 1314231 Pepsin inhibitor ZAIDAN HOJIN BISEIBUTSU KAGAKU KENKYU KAI 18 May 1970 [13 June 1969] 23928/70 Heading C2C  Novel compound I is prepared by cultivating under aerobic conditions a strain of Streptomyces producing I in a nutrient medium containing a carbon and a nitrogen source. The acid addition salts, salts, esters and amides of I are also claimed per se and may be prepared by conventional modification of I. Pharmaceutical compositions used as pepsin inhibitors comprise the compound I or one of its pharmacologically acceptable derivatives in conjunction with a suitable carrier or diluent.
Patent GB-910050-A (GB)
Title: Improvements in or relating to semiconductor devices
Inventor: DRAKE CYRIL FRANCIS
IPC: H01L29/02
Filed: 1960-07-08
Abstract: 910,050. Semi-conductor devices. STANDARD TELEPHONES & CABLES Ltd. July 7, 1961 [July 8, 1960], No. 23953/60. Addition to 910,049. Class 37. In a semi-conductor device having two regions of semi-conductor material separated by regions of opposite conductivity type, the junctions between said regions being of the tunnel diode type, means is provided for passing a control current parallel and adjacent to said junctions. In one embodiment, Fig. 1, the P and N-types form a sandwich, terminals 8 and 9 being provided passing the control current through the N-type material, the controlled current passing between terminals 6, 7. Changes in control current vary the bias along the junction, so varying the areas of negative resistance and hence the characteristics of the device. In a modification, Fig. 2 (not shown), the control current is applied through a region of high resistivity running centrally through the N-type material. The central N-type material may taper from one end, Fig. 4 (not shown), to the other to vary the characteristics of the device. The device may be made of germanium or silicon.
Patent GB-320460-A (GB)
Title: Improvements applicable to wireless valve holders, coil holders and the like
IPC: H01R33/76
Filed: 1928-08-21
Abstract: 320,460. Whiteley, A. H. Aug. 21, 1928. Vacuum tubes.-A socket for a valve- or coilholder has two parallel legs A, B connected at their upper ends and having an opening at the junction for the insertion of a contact plug into the space between the legs, one of the legs having a part such as a foot E for attachment to a base H. Each socket is stamped from a blank and the legs are arcuate in section. In addition to the four usual sockets a central socket A<1> may be provided for use with 5-pin valves.
Patent GB-1064627-A (GB)
Title: Basic alkylated naphthalene-(1,4,5,8)-tetracarboxylic acid diimides
IPC: C07D471/06
Filed: 1965-06-04
Abstract: New compounds of the general formula <F\1> (wherein A is a straight or branched, saturated or unsaturated, aliphatic hydrocarbon radical of up to 20 carbon atoms, which, when it con tains fewer than 7 carbon atoms, is, and in other cases may be, either interrupted by at least one O or S atom or -CONH- group or substituted by phenyl or halopheny radicals, R and R1 are identical or different C1 -20 alkyl radicals, which may be joined together directly or through a hetero atom to form a ring which can be un saturated and/or alkyl-, cycloalkyl- or aryl-substituted, and n is 1 or 2) are prepared by reacting naphthalene - 1,4,5,8 - tetracarboxylic acid or its dianhydride with an amine of the general formula <FORM:1064627/C2/1> or reacting an alkali metal salt of naphthalene-1,4,5,8-tetracarboxylic acid diimide with a halide of the general formula <FORM:1064627/C2/2> or reacting a compound of the general formula <FORM:1064627/C2/3> with an amine R-NH-R1.  The products may be converted into their non-toxic salts with inorganic and organic acids.  Naphthalene - 1,4,5,8 - tetracarboxylic acid diimide - N,N1 - diacetic and -dibutyric acids are prepared by reacting naphthalene-1,4,5,8-tetracarboxylic acid dianhydride with 2 molecular proportions of glycine and g -aminobutyric acid respectively, and are converted to their acid chlorides by treatment with SOCl2.
Patent GB-411415-A (GB)
Title: Improvements relating to processes and apparatus for heating ovens
IPC: C21D9/00
Filed: 1932-08-29
Abstract: 411,415. Continuous kilns. DELOT, M., and BOUSCATIE, M., 12, Rue de Milan, Paris. Aug. 29, 1932, No. 24083. Void [Abridged as open to inspection under Sect. 91 of the Acts, June 13, 1933]. [Class 51 (ii).] In a continuously-operated multiple chamber kiln, shown diagrammatically in the Figure, each chamber 1-8 is in controlled communication with a gas main through ducts 26 and ports 27, an air main 34, a waste gas main 33 leading to a stack, and three transfer flues 29, 31, 32. With the connections shown in full lines air is passed through the cooling chambers 6, 7, 8 from the main 34, and is led through the transfer flue 29 to the chambers 1, 2 which are under fire. The products of combustion pass around the stacks 10, 11 of goods, which may be " flat or curved hollow metallic bodies," in the direction shown by the arrows, and are withdrawn through the floor ports 30 into the transfer flue 31, passing thence through the chamber 3, transfer flue 32, and chamber 4, to the waste gas main 33. In a practical form of kiln described (Figs. 2, 3, 4 not shown) the chambers are in two lines with the gas main between them, and the flues 29, 31, 32, 33 are in the form of endless flues beneath the chambers.
Patent GB-296779-A (GB)
Title: Improvements in and relating to deep well drilling apparatus
IPC: E21B10/06
Filed: 1928-08-22
Abstract: 296,779. Reed, C. E. Sept. 9, 1927, [Convention date]. Borehole apparatus.-A roller-cutter bit for well-drilling comprises a head 1 with a core-receiving opening 2 around which are provided recesses 3, 3<a>, each provided with a vertieal wall 3<b>, an inclined wall 7 with seats 7<a>, 10, and a socket 8 leading to a lateral recess 0; each recess 3, 3a receives a cutter unit assembled before insertion in the head and comprising a spindle 11 on which a frusto-conical cutter 12 is held by a member 16 adapted to bear against the wall 3b and provided with a projection 17 entering the spindle 11, the latter being integral with a shank 14 provided with parts 13, 15, entering the seats 7<a>, 10, and itself passing through the socket 8 in which it is held by fastening-means inserted from the recess 9. Between the recesses 3 and the recess 3<a> are provided downwardly-inclined spindles 4 on each of which roller cutters 20 are held by means of a bushing 23, the bushing and spindle being connected by a bayonet joint; a locking member 24, Fig. 8, is inserted to lock the bayonet joint, and is itself held by a pin 22. Core-gripping means is provided in the opening 2 and may comprise a tapered spring-steel ring 25, Figs. 10 and 11, split at 26 and with toothed slips 28 riveted or welded thereto; between the ring 25 and slips 28 are mounted wings 29, formed of two strips of spring steel welded together, the free ends of the contacting with the core.
Patent GB-954807-A (GB)
Title: Improvements in or relating to electrical telegraphy
Inventor: SIMPSON BERNARD LEONARD
IPC: H04L12/26
Filed: 1961-07-05
Abstract: 954,807. Telegraphy. MINISTER OF AVIATION. Sept. 21, 1962 [July 5, 1961], No. 24247/61. Heading H4P. A monitoring system for telegraph signals, which may be pure binary or of the start-stop type, Fig. 1 (a), has means for generating batches of pulses, such as 4, which are so spaced that the changeovers, such as 3, should occur midway between adjacent pulses of the batch and gating means for detecting when a changeover of a distorted signal occurs within the duration of a pulse and means to automatically adjust the duration of each pulse so as to maintain this occurrence at a fixed rate, e.g. six per thousand. A pen recorder records the adjustments. In one system a beginning element 12 and an end element 14 detect changeovers in a telegraph signal applied to an input 10. Their outputs are combined at 38 and applied to a counter which records the total number of changeovers. The outputs are also passed through AND gates 18, 20, inhibit gate 16, a delay 24 and a trigger 22 to enable a pulse generator 26 which generates the pulses 4 until a predetermined number, seven in the case of 7¢ element start stop telegraphy, have been recorded in a counter 30 causing the trigger 22 to be returned to the " 0 " state. The inhibit gate 16 prevents signals passing while the generator is operating. An end element 28 operates at each " stop " signal to send a pulse on a line 44 to a character counter (Fig. 6, not shown). The pulses from the generator 26 are combined in an AND gate 32 with the changeover pulses on the line 38 so that the distorted changeovers may be counted on a line 40. A start element 36 and a trigger 34 pass only one pulse on a line 42 for each distorted word. The latter pulses are counted on a counter so adjusted that if it reaches a count of, say, six, before the counter on the line 44 reaches 1000 a limit switch 50 is adjusted automatically to reduce the duration of each pulse 4 slightly, if not, the duration is increased. A record is kept by a pen recorder 52. In a further embodiment (Fig. 7, not shown), digital apparatus is used and the limit switch 50 is detailed.
Patent GB-866095-A (GB)
Title: Improvements in or relating to television camera tubes
Inventor: BANKS PETER BALDWIN
IPC: H03H9/09
Filed: 1958-07-28
Abstract: 866,095. Cathode-ray tubes. ENGLISH ELECTRIC VALVE CO. Ltd. April 27, 1959 [July 28, 1958], No. 24272/58. Class 39(1). [Also in Group XXIII] An electrical charge storing target comprising a glass membrane, for use in a television camera tube such as an image orthicon tube, comprises a glass resistant to attack by alkali metals and substantially composed of boric oxide and from 10 to 20% by weight of lithium oxide and from 10 to 40% by weight of other oxides. Preferably such oxides comprise one or more of the oxides of magnesium, calcium, zinc and aluminium. Examples are given. The membrane may be sealed into a tube of a glass composed of PbO 72.3; B 2 O 3  25.9 and SiO 2  1.8 in percentages by weight.
Patent GB-1342513-A (GB)
Title: Ion engraving apparatus
IPC: H01J37/34
Filed: 1971-04-19
Abstract: 1342513 Sputter-etching PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 19 April 1971 [18 March 1970] 24403/71 Heading B3V [Also in Division H1] Apparatus for engraving objects by ion bombardment from a cold cathode discharge which includes a cathode support 16 for the object, an anode 12, and a conducting guard ring 17 around the cathode support, comprises an auxiliary electrode 19 disposed near the cathode. The electrode 19 is disposed approximately at the interface between the plasma and dark zone to modify the plasma potentials near the cathode to produce uniform ion etching. The guard ring 17 is axially displaceable on a metal guide 18 by means of three dependent rods 24 sealed through the metal envelope base 12 and having screw adjustment threads which co-operatively engage threads in supports 26. The base-plate 12 is connected to earth and a metal part 27 is provided between plate 12 and cathode 16 to limit the discharge initiated by the h.f. generator 34. The glass envelope 11 is preferably filled with A at a pressure of about 10<SP>-2</SP> mm Hg. The cathode support is preferably of stainless steel and is provided with an alumina layer over the surface area which surrounds the object to be bombarded to reduce the Malter effect and sputtering of the metal. A mask having the dimensions of the object to be engraved is placed on the cathode and an alumina coating ¢-1 mm. thick is deposited on the mask and cathode surface, e.g. by a plasma gun. The mask is then removed and the object placed in position. The cathode is cooled by means of circulating water.
Patent GB-1513381-A (GB)
Title: Push feed grate
IPC: F23H1/00
Filed: 1975-06-09
Abstract: 1513381 Push feed grate CLAUDIUS PETERS AG 9 June 1975 [7 June 1974] 24681/75 Heading F4B A push-feed grate comprises a substantially horizontal set of fixed plates 2 alternating with movable plates 4 which can be reciprocated forward and backward. Each plate comprises a rear surface portion which is substantially parallel to the direction of feed and a front surface portion which overlaps the rear surface portion of an adjacent plate. The front surface portions of the plates end with pusher portions 17. The movable plates are shaped so that during the return stroke the volume swept by the front surface portion is less than the volume swept by the pusher portion during a feed stroke.
Patent GB-1332888-A (GB)
Title: Flask for handling a nuclear reactor fuel assembly
IPC: G21F5/10
Filed: 1972-05-25
Abstract: 1332888 Fuelling reactors COMMISSARIAT A L'ENERGIE ATOMIQUE 25 May 1972 [28 May 1971] 24708/72 Heading G6C A flask for handling a nuclear fuel assembly comprises an inner jacket 5 consisting of heatinsulating material 7, e.g. mineral wool or metallic elements operated by a layer of gas, enclosed between two metallic walls 9 and 11, the inner wall 11 conforming to the transverse cross-sectional profile of the fuel assembly 13, 15, 17 with provision for a necessary clearance space and the outer wall 9 being connected to a stainless steel cylindrical shell 3 by members 19 provided with openings. The external surface of the shell 3 is either surface treated, e.g. by polishing or coating, or provided with small machined corrugations (not shown) in order to enhance the transfer of heat by radiation into an argon atmosphere through which an irradiated fuel assembly is moved between withdrawal from the liquid metal of the primary vessel and immersion in a secondary-storage liquid metal. The fuel assembly has a bottom end-fitting 25 pierced with holes 27 through which liquid metal, e.g. sodium, flows into the lower and upper zones 13 and 17 made up of fertile elements and the central zone 15 containing fissile elements. When the flask is filled with sodium and the fuel assembly is introduced, the temperature rises locally within the zone 15 and the weight of the sodium within the jacket 5 becomes progressively lower than that of the surrounding annular column 21 of sodium. A thermosiphon effect is thus initiated and the sodium then circulates upwardly within the jacket 5 and downwardly within the annular column 21 as shown by the arrows.
Patent GB-386597-A (GB)
Title: An improved packing case
IPC: B65D6/26
Filed: 1932-09-06
Abstract: 386,597. Collapsable packing-cases. NEARY, E. M., Manunui, and SIMMONS, D. M., Taumarunui Street, Taumarunui, both in Auckland, New Zealand. Sept. 6, 1932, No. 24835. Convention date, Oct. 14, 1931. [Class 18.] A collapsable packing-case, e.g. of three-ply wood, with all members separable, has the sides, bottom, and top 1 each formed along one edge with a series of parallel-sided projections 4, with recesses 4a between them, the opposite edges having undercut projections 5 with dovetailed recesses 5a between them, the remaining edges having projections 6 each containing a lateral open-ended slot 6a. The ends have projections 7 and recesses similar to 6 and 6a. In assembly, parallel-sided projections are engaged in dovetailed recesses, and laterally slotted projections 6, 7 with similar projections. Each edge joint is secured by a batten 8 slotted at 11 to take the projections, the ends of some of the battens being cut away to accommodate the ends of others.
Patent GB-866290-A (GB)
Title: An internal-combustion engine
IPC: F02B3/00
Filed: 1958-08-01
Abstract: 866,290. Fuel injection engines. USTAV PRO VYZKUM MOTOROVYCH VOZIDEL PRAHA. Aug. 1, 1958 [Aug. 20, 1957], No. 24859/58. Class 7(3). Fuel is injected from a single jet nozzle 9 into a combustion chamber 2 in the piston so that the main part of the jet is directed towards the inner end of the chamber while a small portion of the outer periphery of the jet is sprayed on to the piston crown adjacent the edge 7 at the mouth of the chamber. The finely atomized portion sprayed on to the piston crown facilitates ignition.
Patent GB-599973-A (GB)
Title: Treatment of high alpha-cellulose pulp to increase the chemical reactivity thereof
IPC: C08B1/02
Filed: 1945-09-25
Abstract: Machine-dried high alpha cellulose pulp is activated so as to facilitate the subsequent esterification thereof, by impregnating it while in sheet form with glacial acetic acid, propionic acid, butyric acid or a mixture of acetic and propionic or butyric acid in an amount sufficient to dampen the fibres and then immediately disintegrating the sheet into fibres.  If desired, the sheet, while still hot from the drying operation, may be impregnated with the acid.  The amount of acid taken up by the sheet preferably ranges from 15 to 150 per cent of its weight.  Referring to the Figure, a dry sheet of cellulose pulp is withdrawn from roll 1, impregnated with glacial acetic acid on roll 5 and disintegrated by the picker-roll 7.  The fluffed pulp falls on to and is carried away by a conveyer 9.  If instead of a sheeted roll of pulp, small rectangular sheets are to be treated, then the sheets may be sprayed with the acid and subsequently disintegrated.