baber/WOPTO huggingface dataset:
Patent GB-499348-A (GB)
Title: Improvements relating to platen rollers for typewriters
IPC: B41J11/20
Filed: 1937-12-13
Abstract: 499,348. Typewriters. OLYMPIA BUROMASCHINENWERKE AKT. - GES., (formerly EUROPA SCHREIBMASCHINEN AKT.-GES.). Dec. 13,1937, No. 34521. Convention date, Dec. 11, 1936. [Class 100 (iv)] Paper-supports.-The platen-roller is automatically adjusted in accordance with the thickness of the papers thereon by means operated by a spring or other force under control of a paper-feeling member. In the device shown in Figs. 2 and 3, a feeler-roller 11 is supported by spring-urged bell-cranks 12 which are pivoted on the end plates of the carriage 10 and co-operate with the release-shaft 8 for the usual front and rear feed-rollers. Each bell-crank has a pin 14 engaging a slot in a link 15 coupled by a lever 18 to a sliding wedge 20 which engages an extension 27 on a slidable bearing 25 for the platen-shaft 24. Each bearing is provided with a disc 28 pivotally connected to a bellcrank 29 which is connected to a spring 31 and co-operates with a cam 32 on the shaft 8. When the release-lever 34 is drawn forwards, the shaft 8 is rocked, the feed-rollers are released to permit of introduction or straightening of the sheets, the bell-cranks 29 are rocked and draw forwards the platen-bearings, and the bell-cranks 12 act through springs 16 to raise the wedges 20. On return of the releaselever, the bell-cranks 12 and wedges return to positions determined by contact of the feelerroller with the sheets, the bell-cranks 29 return, and the wedges co-operate with the extensions 27 to determine the position of the platenroller. The wedges may be replaced by eccentrics coupled to the levers 18.
Patent GB-920113-A (GB)
Title: Method for dissolving zirconium-uranium compositions
IPC: C01G43/00
Filed: 1960-10-11
Abstract: Uranium and zirconium are recovered by solvent extraction of a solution containing uranyl nitrate, prepared by contacting a zirconium-uranium composition with at least a 4M. aqueous solution of ammonium fluoride, at a temperature up to the reflux temperature of the resultant solution, to dissolve zirconium, adding a peroxide in incremental amounts to convert the uranium to a soluble uranyl salt and adding sufficient nitric acid to form the nitrate.  Zirconium is thought to dissolve in the ammonium fluoride solution as ammonium zirconium fluoride, and the concomitant evolution of hydrogen may be diminished by adding ammonium nitrate (up to 1 molar); the uranium dissolves to form ammonium uranous fluoride which is converted by the peroxide, e.g. H2O2, to ammonium uranyl fluoride.  It is preferred to add aluminium nitrate with the nitric acid to diminish corrosion. Preferably sufficient hydrogen peroxide is added to make the final solution 0,1 molar in H2O2.  The molar ratio of free fluoride to uranyl (U+6) provided by the particular ammonium fluoride solvent should be at least 60.  The free fluoride concentration is defined as: Total fluoride concentration minus 6 times the zirconium concentration, the concentration being expressed in moles.
Patent GB-1018682-A (GB)
Title: Printed circuit board
Inventor: SMITH LESLIE HAYNES
IPC: H01R12/82
Filed: 1963-09-03
Abstract: 1,018,682. Two-part couplings. CARR FASTENER CO. Ltd. June 19, 1964 [Sept. 3, 1963], No. 34783/63. Heading H2E. A printed circuit board 1, which has an edge portion insertable into a slot 5 in an edge connector 4 without making rubbing engagement with the resilient contacts 6, is provided with a means which when inserted into the slot causes transverse movement of the board 1 so as to move the printed circuitry on the board into engagement with the resilient contacts 6. At the same time, pins in the socket may engage holes in the board to lock it. The means can take the form of a metal, plastics or laminate plate-like member 2b integral with an arm mounted so as to slide on the printed circuit board (Fig. 1 and 2, not shown). The end of the plate-like member 2b is bevelled at 2c to facilitate entry into the slot 5. Alternatively, the means can be in the form of a frame member (Fig. 6, not shown) slidable on the printed circuit board or can be a plate-like member actuated by a rod, which may be removable, in various ways (Figs. 7-10, not shown). Also the plate-like slidable member need not be attached to the printed circuit board.
Patent GB-1166759-A (GB)
Title: Character Readers
IPC: G06V10/24
Filed: 1967-07-28
Abstract: 1,166,759. Character recognition. ALMEX A.B. 28 July, 1967 [29 July, 1966], No. 34938/67. Heading G4R. A character reader comprises two rows of photodetectors over which an image of the character is swept, a preamplifier having a gain varied inversely to the character contrast, a register in which the character is reconstituted and shifted to a standard position to feed recognition means, and checking means. In Fig. 2, a line of characters on moving strip R is scanned by rotating mirrors S and projected by optics O on to two orthogonal lines X, Y of photo-cells across which the image sweeps. The photo-cell outputs pass via preamplifiers and threshold amplifiers to a character register into which the signals derived from the Y photo-cells are entered and shifted to a standard position under control of the X photo-cells. The outputs of the preamplifiers control their gains to compensate for different printing densities and cause reduction of the threshold levels of the threshold amplifiers in the case of weak signal. The rate of movement of strip R is sufficiently slow comparatively for several recognition attempts to be made on each character with successively lower threshold levels in case recognition is not possible first try. This also compensates for characters being vertically displaced in the printed line. When a character has been fully entered into the character register it is recognized to produce ideally a signal on one of a plurality of lines. If more than one line is marked, the largest signal is taken. The character identity is inserted into a position register at a position corresponding to that of the character in the printed line. When the position register is presumably full (it may have a " blank " indication in some positions), its contents are transferred into a further register via a coder (after a check on the code produced) and provided a comparison of blank/not-blank signals from the further register and the position register indicates no discrepancy, the contents of the further register are passed to another register and, on receipt of a request from a computer, to the latter.
Patent GB-1483220-A (GB)
Title: Process and apparatus for thermoforming an article from thermoplastic sheet material
IPC: B29C51/10
Filed: 1974-08-08
Abstract: 1483220 Moulding containers SIDAPLAX 14 July 1975 [8 Aug 1974] 34965/74 Heading B5A A heated platen A (Fig. 2) clamps a sheet of thermoplastic material B over the end of a frusto-conical container mould C. While the cooler device D is in close proximity to the sheet, Fig. 1A or retracted, Fig. 2 the platen heats the sheet to forming temperature and the cooling device is advanced if necessary, to blow cooling fluid on to the sheet as indicated by arrows so as to control sheet thickness. The sheet is then formed in the mould by blowing air through the pressure application holes in platen A while simultaneously evacuating the mould through the vent holes F and retracting the cooler head to the position in Fig. 2. The cooler head can be advanced again to eject the moulded article.
Patent GB-1448799-A (GB)
Title: Cables
IPC: H01B13/34
Filed: 1974-08-08
Abstract: 1448799 Applying identifying markings to insulated conductors STANDARD TELEPHONES & CABLES Ltd. 8 Aug 1974 34977/74 Heading H1A A bonded pair is made from two cellular plastics insulated conductors joined together by their insulation in a process which includes the step of marking one of the insulated conductors with ink before the conductors are joined. The pair is manufactured by passing two conductors through separate parallel bores of an extrusion die in which cellular plastics insulation material is extruded on to the conductors, colouring one of the conductors and then bonding the insulation by the natural expansion of the plastics material on leaving the die, possibly giving the pair a twist. The marking may be in the form of a continuous coat, bands, longitudinal stripes, helical strips or dots.
Patent GB-653406-A (GB)
Title: An arrangement for radio direction-finding
IPC: G01S1/02
Filed: 1947-12-31
Abstract: 653,406. Radio direction-finders. BRIZA, J. Dec. 31, 1947, No. 35057. Convention date, May 29, 1945. [Class 40 (vii)] A radio direction-finding system comprises a tuned dipole connected to a receiver, and one or more reflecting aerials spaced from the dipole and coupled thereto by re-radiation only, so that errors due to reception of horizontallypolarized components of the received signals are eliminated. In Fig. 1, the aerial 12 comprising the parallel tuned circuit 22, 32 is connected to the receiver, and the reflector dipoles 11, comprising the series-resonant circuits 21, 31, are rendered alternately operative by means of the simultaneously operable switches 5. By adjusting the values of the resistors 4 and detuning condensers 311, the re-radiated fields are arranged to have the same amplitude at aerial 12 as the directly received radiation and bear such a phase-relation thereto that alternate overlapping cardioid directive reception-patterns are produced. In Fig. 3 a single aperiodic reflecting aerial 11 which may be rotated about the dipole 12 is used. The reflecting aerial is connected to a positivefeedback circuit as shown, whereby, by controlling the feedback by means of condenser 33, the directly received and re-radiated fields are made to have equal amplitudes. In this arrangement, there are generally obtained two minima spaced apart by an angle other than 180 degrees; the direction of reception is indicated by the bisector of the angle thereby defined.
Patent GB-173159-A (GB)
Title: Method of treating dough
IPC: A21C9/08
Filed: 1920-12-13
Abstract: 173,159. Benz, A. Dec. 13, 1920. Dough-working apparatus.-In a bread-making process wherein a fermented dough batch is divided into loaf units which are individually and repeatedly sheeted and folded by a conditioner which returns the dough to the elastic condition it was in before division, the conditioned units being fed to a moulding machine, the corditioner comprises a series of superposed rollers 4. 5, adjacent endless conveyers 21 and guideways 28 down which the loaf units slide between the rolling operations. The rollers 5 are preferably smooth and the rollers 4 are fluted, serrated or roughened and are supported on adjustable arms 8. Scraping knives 12, 13, supported on spring-controlled bell-crank levers 14, 17, remove adhering dough from the rollers which have a high peripheral velocity relatively to the conveyer 21; twelve times the conveyer speed is stated to bo suitable. The loaf units are thus folded on the conveyers 21 from whence they are removed to the guideways 28 by oblique scrapers 27 which turn each unit through a right-angle,. Fig. 3, so that each sheeting and folding is at right-angles to the preceding operation.
Patent GB-1017672-A (GB)
Title: Electric motor construction
IPC: H02K1/12
Filed: 1964-08-27
Abstract: 1,017,672. A.C. motors. INTERNATIONAL REGISTER CO. Aug. 27, 1964 [May 27, 1964], No. 35107/64. Heading H2A. A synchronous A.C. motor 10 comprises a magnetic field structure which includes a plurality of spaced stationary field poles 18, 21 arranged circularly about a rotor axis and magnetized by a winding 14 to generate alternating opposite polarities in adjacent poles, and rotatable in the field a permanent magnet rotor 36 having along its periphery 41 alternate N and S poles 42 ... 59 equal in number to that of the field poles 18, 21 and certain of which have different arcuate lengths and are arranged in diametrically opposite pairs of opposite polarity and equal arcuate length. As shown, the rotor has eighteen unequally spaced poles of which 42, 43 are relatively long, 44 ... 47 are relatively short, and the remainder are of intermediate length; it is of either barium ferrite mixed with phenolic resin or elongated single domain iron mixed in a lead matrix, and has on its hub 39 a cam 62 which co-operates with a reversible reversing lever 67 to determine the direction of rotation. The rotor shaft 26 drives gearing 30, has bearings 25 and a bearing washer 37, and is lubricated by a wick 28.
Patent GB-373563-A (GB)
Title: Coupling link for toy railway tenders or locomotives
IPC: A63H19/18
Filed: 1931-12-19
Abstract: 373,563. Mechanical toys. BING WERKE VORM. GEB. BING AKT.-GES., 215, Regensburgerstrasse, Nuremberg, Germany. Dec. 19, 1931, No. 35183. Convention date, May 1. [Class 132 (iii).] A toy locomotive or tender is provided in addition to the usual non- automatic couplings with a coupling link I that forms part of an automatic coupling and is carried by the buffers 9. The link projects from a plate 3 carried by a pair of telescopically arranged members 6 urged towards each other by springs 7 and adapted to take over the buffers 9.
Patent GB-487837-A (GB)
Title: Improvements in or relating to a process for the fermentation of organic matter
IPC: C05F17/00
Filed: 1936-12-22
Abstract: Solid or semi-solid organic matter is degraded by a bacterial process in which the fermentation is effected in two stages, or the first stage by the action of anaerobic bacteria in a chamber closed against the free ingress of air and in the second stage by the action of aerobic thermophile bacteria in a chamber into which air is introduced.  The product is a manure.  The organic matter may be impregnated with the anaerobic and thermophile aerobic bacteria either singly, or together, say by spraying it with a suitably infected liquid medium.  Excess acidity may be prevented by the addition of gas lime, basic slag, calcium carbonate &c. and any ammonia which is formed may be absorbed by the addition of calcium sulphate.  The first (anaerobic) stage may be effected at temperatures of 50-80 DEG  C. by means of the bacteria in sewage sludge or by means of a culture of Spirochaeta Cytophaga.  The temperature may be maintained by the introduction of warm aqueous vapour.  An oxygen-consuming fungus of the classes mycelium, periculium, or aspergillus, e.g. aspergillus glaucus Ascosporic may be introduced during this stage to remove any oxygen present.  The second (aerobic) stage may be carried out at temperatures of up to 85 DEG  C. by means of bacteria obtained from a humic soil, or B. ammoniagenes, B. Trauffautii, B. Ureal, B. Radiciola and Azotobacter Chroococcum.  The air employed in the aerobic stage is preferably ozonized and is preferably passed into the chamber intermittently. The air preferably has a temperature of 1 or 2 DEG  C. below that of the fermenting matter, the temperature of the ozonized air being progressively raised as that of the mass increases.  The air may be heated by compression the compressed air being supplied to the process at a pressure of 1-5 atmospheres.  The air supplied may be moist at first but dehydration is effected by supplying dry air towards the end of the process.  Preferably, the two stages are carried out in succession in the same chamber, the temperature from the second stage being reached as a result of the heat developed in the first stage.  When the process is used to treat large quantities of town or house refuse, it may be carried out in a number of chambers which are successively charged with the incoming refuse, matter in each chamber being infected by introducing a portion of matter from a preceding chamber which has been at 75 DEG  C. for not less than 24 hours.  In treating town refuse, ciders and coal may be separated therefrom by screening the cinders &c. being then burnt to supply heat and power for the process.  The ash may be added to the end product of the process.  Any unconverted materials such as bones, hoofs, horns, woollen articles, shoes or leather may be disintegrated and either mixed with the end product or returned to the process.
Patent GB-1293749-A (GB)
Title: Centrifugal cleaning filter
IPC: B01D29/00
Filed: 1970-07-21
Abstract: 1293749 Centrifugal-cleaning filter SCHENK-FILTERBAU GmbH 21 July 1970 [25 July 1969] 35210/70 Heading B1D A centrifugal-cleaning filter for separating solids from liquid comprises a circular housing 1 which tapers outwardly from its top to its base and which contains a hollow shaft 2 rotatable by motor 9. The shaft carries circular filter discs 3, through which liquid is filtered, the filtered liquid leaving via the hollow shaft 2 and pipe 14. Filter element 4 has a separated exit 15. Liquid to be treated enters at 13 and pressurising gas through 17; the. filtration taking place with the discs stationary, filter element 4 being brought into use towards the end of filtration only when the liquid remaining in the housing is forced through element 4 by gas pressure from inlet 17. When filtration is complete the discs are rotated, to break up the. cake collected thereon and throw it to the floor 30 of the housing from which it is swept by scrapers 21, 22 into outlet 11. Scraper 22 is inclined to the vertical, so that its upper edge leads it lower edge relative to the direction of rotation, whilst scraper 21 is vertical. Both scrapers diverge from the radial direction, being tangential to the hollow shaft such that scraper 22 which sweeps an outer annular zone of the housing base tends to push the cake inwards and the scraper 21 which sweeps the inner annular zone tends to push the cake outwards. The bottom of the housing may be concave (Fig. 1) or flat (Fig 4 not shown).
Patent GB-402255-A (GB)
Title: Improvements in and relating to a process of manufacturing paints for preventing theformation of rust
IPC: C09D5/08
Filed: 1932-12-12
Abstract: A pigment is prepared from natural magnetite, by grinding the ore in the presence of water, removing the gangue and passing the resulting powder through an air sifter.  The ore is ground with water in crushing mills from which it is discharged upon rotating tables supplied with a current of water.  The lighter materials are washed away leaving the finely powdered oxide which is then passed to magnetic separators.  The separated oxide is then dried p  and wind-sifted.  The pigment thus prepared is mixed with linseed oil, turpentine and a siccative to form a rust proofing paint. Coloured pigments such as white lead, zinc white, red lead oxide or iron ochre may be added.ALSO:A pigment is prepared from natural magnetite by grinding the ore in the presence of water, removing gangue and passing the resulting powder material through an air sifter.  The ore is ground with water in crushing mills having vertical runners from which it is discharged over rotating tables supplied with a current of water.  The lighter materials are washed away leaving the finely powdered oxide which is removed from the tables by magnetic separators.  The separated oxide is then dried and wind-sifted.
Patent GB-285006-A (GB)
Title: Silencers for internal combustion engines
IPC: F01N1/08
Filed: 1927-12-30
Abstract: 285,006. Gatta, B. Feb. 8, 1927, [Convention date]. Exhaust silencers. - The silencer comprises a casing in two parts 15, 16 of which 16, which is of circular cross-section, has a reduced end 1 for attaching to the exhaust pipe, and 15 has a constricted part 3 and terminates in a flat oval-shaped outlet 2 of slightly greater area than the inlet 1. Within the casing are located a number of truncated cones 4 - - 8, the bases of which are of the same diameter, less than that of the casing, and the apertures at the smaller ends of which decrease in diameter as the outlet is approached, in which direction also the vertical angle of the cones increases. Beyond the cone 8 is a perforated truncated cone 9 the base 13 of which is secured at the joint between the sections 15, 16. The cones are secured together by three reds 10 - - 12. Some of the gases entering at 1 pass straight through the silencer, whilst the remainder is deflected by the various cones and expanded to the outer annular space whence it passes through the perforations in the cone 9.
Patent GB-936586-A (GB)
Title: Improvements in and relating to epicyclic change speed gearing
Inventor: WILSON ANDREW GORDON
IPC: F16H3/66
Filed: 1960-10-17
Abstract: 936,586. Change-speed gear. SELF-CHANGING GEARS Ltd. Sept. 29, 1961 [Oct. 17, 1960], No. 35449/60. Class 80 (2). A motor vehicle change-speed epicyclic gear providing three reduced ratios, direct-drive and reverse, comprises three reducing sun-ring trains 6, 9, 15 and a reverse train 21 having the suns 1c 1b of the first arid second trains 6, 9 and the ring 17 of the third train 15 fast with an input shaft 1, the planet carrier 6 of the first train fast with an output shaft 2 and the ring 7 of the first train fast with the planet carriers 9, 15 of the second and third trains so that the first train 6 acts alone for low-ratio when its ring 7 is held by a brake 8, the first and second trains 6, 9 compound for second ratio when the ring 11 of the latter train 9 is held by a brake 12 and the first and third trains 6, 15 compound for third ratio when the sun 13 of the latter is held by a brake 18. For direct drive an hydraulicallyoperated friction clutch 24 connects the sun 13 of the third train 15 to the input shaft 1. Reverse is obtained by holding the ring 22 of the reverse train at 23 which train thus compounds with the first train 6 since its sun 19 is fast with the ring 7 and its planet carrier 21 is fast with the output shaft 2. Specification 164,042 is referred to.
Patent GB-487798-A (GB)
Title: Manufacture of vat dyestuffs
IPC: C09B1/48
Filed: 1936-12-24
Abstract: Vat dyestuffs, which are 4 : 41-bis-(benzoylaminoanthraquinonylaminobenzoylamino)-1 : 11-dianthrimides, are manufactured by reacting a 4 : 41-dibenzoyldiamino-1 : 11-dianthrimide, in which each benzoyl radicle carries a single bromo or chloro substituent, with two molecular proportions of an a -amino-a 1-benzoylaminoanthraquinone, i.e. 1-amino-4-, 5- or 8-benzoylaminoanthraquinone.  The reaction may be carried out in an inert high-boiling solvent, e.g. naphthalene, if necessary with the addition of an acid absorber, e.g. anhydrous sodium carbonate, and of a copper compound as catalyst.  In examples: (1) m : m1-dibromo-4 : 41-dibenzoyldiamino-1 : 11-dianthrimide is heated with 1-amino-4-benzoylaminoanthraquinone, naphthalene, anhydrous sodium carbonate and cuprous chloride; the product dyes cotton reddish-grey shades from a dull brown alkaline sodium hydrosulphite vat by the "cold-dyeing" process; (2) p : p1-dibromo-4 : 41-dibenzoyldiaminodianthrimide is similarly treated; the product dyes cotton neutral grey shades from a dull brown alkaline hydrosulphite vat.  4 : 41 - Dibenzoyldiamino - 1 : 11 - dianthrimides in which the benzoyl radicles carry chlorine or bromine are obtainable by acylating 4 : 41 - diamino - 1 : 11 - dianthrimide with o-, m- or p-chloro- or bromobenzoyl chlorides. In an example, m-bromobenzoic acid is treated with thionyl chloride in suspension in nitrobenzene and the product is heated with 4 : 41-diamino-1 : 11-dianthrimide.
Patent GB-1519370-A (GB)
Title: Thermal barrier coatin for nickel and cobalt base super alloys
IPC: C22C19/00
Filed: 1976-08-26
Abstract: 1519370 Coated nickel and cobalt alloys UNITED TECHNOLOGIES CORP 26 Aug 1976 [11 Sept 1975] 35521/76 Heading B2E A thermally protected Ni or Co superalloy, e.g. for use in combustion chambers, transition ducts and afterburner liners in gas turbine engines, has a metal bond coat which is an alloy of 15-40% G, 10-25% Al, up to 1% ythrium, the balance being a mixture of Fe, Co and Ni or a mixture of Ni and Co. The bond coat is overlaid with a zirconia base ceramic material. The concentration of ceramic may vary continuously from 0 at the bond coat to 100%. The coatings may be applied by plasma spraying.