baber/WOPTO huggingface dataset:
Patent GB-949247-A (GB)
Title: Improvements in or relating to typewriting and like machines
IPC: B41J3/54
Filed: 1961-09-20
Abstract: 949,247. Typewriters. IMPERIAL TYPEWRITER CO. Ltd., and R. M. EVANS. Aug. 29, 1962 [Sept. 20, 1961], No. 33693/61. Heading B6F. Machines with two or more sets of type.- A typewriting machine has two type frames 10a, 10b, Figs. 1A, 1B, arranged on a bed-plate 11, a common top-plate 13, adapted to support a movable carriage 15, Fig. 2, and which is movable from a first position in which it seats on the frame 10a to a second position in which it seats on the frame 10b, the top-plate being moved by power-driven means in such a way that the top-plate in moving from one position to another is first lifted, then moved transversely and then lowered. The type frames 10a and 10b contain detachable type units 12a, 12b respectively, the former having roman type characters and the latter mathematical and other symbols. Paper carriage and supports.-The top plate 13 having the carriage 15, Fig. 2, mounted upon is slidably supported on a shaft 23 having keys 27 engaging the sides of bracket sets 21, 22 fixed to the top-plate, which is moved from one frame to another by a dog 39, Fig. 1, in a gear-box 35, to rotate a crank member 52 and thereby rotate the shaft 23 and bracket sets 21, 22 which in turn rotate the plate 13 through an angle of 12 degrees. A lost angular motion of 50 degrees between the shaft and bracket sets is used to unlatch catch means 75, 76, Fig. 2, by a link 81 and an arm 82 attached to the shaft. The dog 39 is then moved to cause a chain 58 to move the top-plate 13 laterally to a position above the other frame, the top-plate being supported during this movement by a support rail 143, engaging slidably a roller 142 on an upstanding arm 141, mounted between the frames. The dog 39 is then returned to its initial position and further rotation of the crank member 52 lowers the top-plate on to the other frame, whereupon the catch means 75, 76 re-engages to retain the carriage in position. Contacts 106, 107 are operated by a bracket 34 fixed relative to the plate to define the end position of the carriage and which when operated actuate the dog 39 to arrest the chain 58. Limiting contacts 108, 109 are provided on extreme ends of the frames, which when opened by contacts 110 on the top-plate, de-energize a solenoid 89 to apply a brake to the shaft 38 of motor 47 by a toggle lever 48. To lock the carriage during movement of the top-plate a carriage locking pawl 216, Fig. 9, and a rack locking piece 217 are provided, both of whom are displaced into operative position by the downward movement of a spring-urged pin 223, which is normally held in an upward position by a stop 224 abutting against a platform 225 on the frame 12. Keys action.-The top-plate movement having the carriage 15 mounted upon it is initiated by keys 113, 114, Fig. 1, operating respective push switches 111, 112, which in turn actuate solenoids 85, 86, Fig. 2, to displace the dog 39 into its initial position. Specification 949,246 is referred to.
Patent GB-1506156-A (GB)
Title: Phase shifting circuits
IPC: H03H7/20
Filed: 1975-05-14
Abstract: 1506156 Phase-shifting networks MARCONI CO Ltd 14 May 1975 [31 July 1974] 33710/74 Heading H3U A phase-shifting circuit comprises a four-part coupler, the arms L1-L4, C1-C4 of which each introduce a phase shift of 90 degrees into a signal of a given frequency, first and second ports of the coupler which are immediately adjacent being connected to equal impedances constituting a mismatch impedance network, such that signals at said frequency arriving at a third, input, port are reflected and appear with a fixed phase shift at the fourth, output, port. As shown the first and second ports are connected via capacitors C5 to impedances each constituted by a varactor diode Dl and tuned inductor L6. The phase of the reflected signals may be varied by varying a control voltage applied to the diodes via chokes 25. Alternatively a fixed phase shift may be provided by replacing each diode-inductor combination by a single fixed capacitor or inductor.
Patent GB-1388795-A (GB)
Title: Link construction for a crystal pendant
IPC: F21V21/10
Filed: 1973-07-16
Abstract: 1388795 Chandeliers CRYSTALON SA 16 July 1973 [2 April 1963] 33713/73 Heading F4R [Also in Division F2] A link 12 for interconnecting two crystals 10 in a chandelier comprises a pair of elongated members 14, 16 disposed in back-to-back relationship and having ornamental outer faces, the members being joined together at their middle portions 18 and diverging outwardly away from one another to form a double V configuration with the V's in point to point relationship, the ends of the members having means such as inwardly directed tabs 20, 22 for engagement with openings 24 in adjacent crystals. The link may be formed by bending a single metal blank (Fig. 4, not shown) or the members may be joined by welding, riveting or clamping.
Patent GB-1517526-A (GB)
Title: Photoflash lamps
IPC: G03B15/04
Filed: 1975-08-13
Abstract: 1517526 Flash-lamp arrays GENERAL ELECTRIC CO 13 Aug 1975 [23 Sept 1974] 33743/75 Heading G2X A flash-lamp array comprises a housing 36, 37 containing, in the named order, flash-lamps, a reflector 41, a circuit board 42 with flash sequencing circuitry, and an indicia sheet 43, the indicia facing the housing back 37 which is transparent at least in parts so that the indicia can be seen. The indicia show whether or not a lamp has been flashed. Sheet 43 is a sheet of paper or cardboard with holes corresponding to each lamp together with a sheet 48 of heat-sensitive plastics coloured with ink. The reflector and circuit board have holes 51 so that radiation from a flashed lamp reaches the plastics which melts or shrinks so that the colour is no longer visible. The lamps are connected to the circuitry, which includes radiation sensitive switches, by lead-in wires. The front 36 is preferably made opaque in the areas adjacent these wires. The front and back 36, 37 are connected by interlocking members 38.
Patent GB-383757-A (GB)
Title: Improvements in or relating to convertible bed-settees
IPC: A47C17/22
Filed: 1931-12-05
Abstract: 383,757. Bed-settees. SIDDALL & HILTON, Ltd. and TAYLOR, G. G., Centre Mills, Sowerby Bridge, Yorkshire. Dec. 5, 1931, No. 33749. [Class 52 (ii).] In a folding bed-settee comprising an inner section b pivoted to the main frame a, and connected through an intermediate section c to an outer sector d having a seat m connected thereto through parallel links k, the inner section v is provided at each side with a slot g which receives a roller h mounted on a strut i the lower end of which is pivoted to the main frame at i<1>. The strut i is attached to a link j, pivoted to the intermediate section c. In folding, the roller h passes down the slot, the inner section b assumes a downwardly inclined position and the intermediate section c is raised to a vertical position. Supporting legs e and a footrail f are provided.
Patent GB-1001836-A (GB)
Title: Chromium complexes of azo dyestuffs
Inventor: BLACKHALL ALEXANDER
IPC: C09B62/477
Filed: 1962-09-04
Abstract: The invention comprises chromium complexes of monoazo dyes of formula <FORM:1001836/C4-C5/1> wherein Z is the group -CH = CH2 or -CH2CH2Cl, n is 1 or 2, one of Q1 and Q2 is a hydrogen atom and the other a sulphonic acid group, L is a hydrogen or chlorine atom or a nitro group, the ring X contains one more chlorine atoms or nitro groups and the ring T may contain one or more chlorine atoms or methyl, methoxy or nitro groups.  The complexes may be prepared by reacting a 1 : 1-chromium complex of one of the dyes in the complex with an equimolar amount of the other dye or by treating the complexes of the above formula but wherein the -NHCOZ group is replaced -NH2 with acryloyl chloride or b -chloropropionylchloride.  The dyes may be used to colour nitrogenous textile materials in red and orange shades.
Patent GB-618937-A (GB)
Title: Improvements in or relating to two-stroke cycle compression-ignition internal combustion engines
IPC: F02B71/06
Filed: 1946-11-14
Abstract: 618,937. Two stroke engines. PHILIPPOVIC, J. W. Nov. 14, 1946, No. 33807. [Class 7 (ii)] In a two-stroke-engine cylinder having pistoncontrolled inlet and exhaust ports 15, 18, the arrangements are such that, whereas in the position shown, air is drawn through the ports into the recaporator chamber 7, at the other end of the stroke the piston face 16 is not substantially lower than the bottom of the inlet port 15. The percussion tool shown has a bearing on the cylinder which reciprocates on a fixed rod 5 carrying the piston and having a fuel passage 12 leading to an injection nozzle 13 and supplied by a jerk pump 21 as described in Specification 597,863. A pre-combustion chamber is formed in a plug member 11 screwed into the cylinder head, the clearance being adjusted by packing shims. The inlet and exhaust ports communicate directly with the atmosphere, the air charge being induced partly by the outflow of exhaust gas and partly by its cooling owing to the cylinder having thick walls and to the cooling air induced in the position shown. Specification 606,336 also is referred to.
Patent GB-809753-A (GB)
Title: Oxidation of trivalent titanium compounds contained in solid titaniferous materials
IPC: C22B34/12
Filed: 1956-11-06
Abstract: The trivalent titanium values of materials obtained by the reduction of titaniferous ores are oxidized to tetravalent titanium values by moistening and exposing to an oxidizing gas, especially air, whilst maintaining the temperature below 100 DEG  C. Such material, both before and after oxidation, is (Fe, Mg) 0.2 TiO2 containing the trivalent or tetravalent titanium values in solid solution.  The material preferably has a particle size of less than 50 microns, and may be pelleted to between 1 and 10 mm. size prior to the oxidation. The oxidation may be performed in the presence of electrolytes such as sulphates, chlorides, chlorates or preferably hydrochloric or sulphuric acid in quantities of 0.1-2.0 per cent by weight of the material.  The electrolytes may be added during the pelletting prior to the oxidation which may be performed in a static bed or a stirred layer.  Water may be added during the oxidation to prevent the mass from becoming too dry.  The product is easily digested with sulphuric acid.
Patent GB-1239827-A (GB)
Title: A device for use on a lathe for machining a workpiece
Inventor: JEANNERET JULES LOUIS
IPC: B23Q1/68
Filed: 1968-07-17
Abstract: 1,239,827. Tool holding apparatus. J. L. JEANNERET. 17 July, 1968 [21 July, 1967], No. 33989/68. Heading B3T. A tool holding assembly for supporting a plurality of cutting tools 30 comprises a support member 6 which is adapted to extend longitudinally of the lathe and workpiece axis and on which the tools are mounted, the support member 6 being mounted for transverse feed movement on slides 13 and 15 on the lathe bed 5. The slides 13 and 15 are actuated by levers 18 and 25 respectively which are mounted for pivotal movement with a shaft 19 attached to the bed. The pivoting of the levers effects the feed movement of the slides towards the workpiece axis and thus simultaneous feeding of the tools to the workpiece. Screw means 34, 35 is provided for the individual adjustment of the slides.
Patent GB-425499-A (GB)
Title: Improvements in devices for supporting neckties and the like in wardrobes and other places
IPC: A47G25/74
Filed: 1933-12-04
Abstract: 425,499. Tie racks. RODD, R. J., The Old House, Walton-on-Thames. Dec. 4, 1933, No. 34001. [Class 52 (v)] A rack for supporting neckties in wardrobes &c. comprises a U-shaped fixing bracket 2 between the arms 4 of which projects a row of tie supporting pegs 1, a cover plate 7 of angle section being hinged to the bracket 2 to provide a cover over the top and ends of the pegs. The bracket 2 has holes 3 for fixing it to the wardrobe door, and the cover plate is hinged to it at 5.
Patent GB-629869-A (GB)
Title: Improvements in and relating to selenium rectifiers and methods of making the same
IPC: H01L21/10
Filed: 1947-12-23
Abstract: 629,869. Asymmetrically-conducting resistances. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 23, 1947, No. 34065. Convention date, Dec. 26, 1946. Drawings to Specification. [Class 37]  A rectifier element has a plurality of layers of selenium applied to a single base plate, superimposed upon one another, each layer being partially oxidized before the application of the next layer. The selenium layers are applied in the vitreous form and are converted to the crystalline form in the presence of air, thus effecting partial oxidization, and imparting a certain rectifying capability to each layer. Four layers are preferred, the final selenium layer being given a more rapid heat treatment, and a blocking layer, applied chemically. followed by the application of a counter electrode and " forming " in known manner. It is stated that a rectifier element of this type is capable of rectifying higher voltages without 'breakdown, of the order of three times the normal working voltage. Specifications 554,822 and 608,216 are referred to.
Patent GB-1204646-A (GB)
Title: Process for growing yeast on petroleum hydrocarbons
IPC: B65D90/10
Filed: 1969-07-07
Abstract: 1,204,646. Yeast. TEXACO BELGIUM N.V. S.A. July 7, 1969 [July 27, 1978], No.34116/69. Heading C6F. A yeast Candida guilliermondii or Candida rugosa is aerobically cultured on a liquid nutrient medium in the presence of a feedstock containing paraffinic petroleum hydrocarbons as a carbon source and the yeast produced is recovered. Such recovery may involve freezing the entire broth, centrifuging to remove growth medium and remaining oil, washing the separated yeast and then drying it to a moist cake or dry powder in a stream of warm air. The pH of the culturing medium is maintained between 4 and 6 by the addition of ammonium hydroxide or marble chips. Feedstock: specified paraffinic or asphaltic crude oils, preferably 325-650‹ F. fractions, liquefied petroleum wax or slack wax, keresene, gas oil, middle distillates, fuel oil or diesel oil, or mixtures of C8-C12, C14-C18 or C20-C32 normal paraffins. The Specification discloses procedures for testing the ability of Candida yeasts (and other micro-organisms) to assimilate hydrocarbon substrates.
Patent GB-1047548-A (GB)
Title: An improved form conveying mechanism for a hosiery boarding machine
IPC: D06C5/00
Filed: 1965-08-10
Abstract: 1,047,548. Treating and finishing stockings. AUTOBOARD CORPORATION. Aug. 10, 1965 [April 26, 1965], No. 34117/65. Headings D1L and D1S. A boarding form conveying mechanism in a hosiery boarding machine comprises endless chain conveyers 20, 21 which are driven around a closed path, a plurality of brackets 30 mounted in spaced relation along the conveyers 20, 21 for movement therewith around the path, means on each bracket 30 to support a boarding form 45 in a position spaced outwardly from the conveyers 20, 21 and at an angle relatively to the path of travel thereof, and means 15, 17, Fig. 3 (not shown), associated with with the conveyers 20, 21 enabling the brackets 30 and the forms 45 supported thereby to be successively swung through an arc while passing a curved portion of the closed path to increase the spacing between successive forms while the brackets are moving along the curved portion. The mechanism comprises a bearing block 3 secured to a base plate 2 and formed in two segments 6, 7, Fig. 3 (not shown), the segment 7 being adjustable relative to the segment 6 by guide pins 8 extending therebetween. A shaft 13 is rotatably mounted in an extension 12 at each end of the block 3 and carries sprockets 15, 17 around which the chains 20, 21, respectively, pass. One of the shafts 13 is suitably driven by a pulley 27 on a stub axle 24 secured thereto. Each bracket 30 comprises a pair of triangularly shaped plates 31 spaced apart by flanges 34, 35 between which a pin 36 is secured. The ends 37, 38 of each pin run in cam grooves 44, 41, respectively, in rails 42, 40, respectively, extending along the straight runs of the chains 20, 21. The projecting ends of the flanges 34, 35 are supported by tabs 80 formed on alternate links of the chains 20, 21. The bottom surfaces of the flanges 35 engage horizontal surfaces 49 on the rails 40 as the brackets 30 move therealong to provide additional support for the brackets. Each boarding form 45 has a pair of slots 47, with horizontal portions 48, formed therein to receive two pins 46 extending between the plates 31. A vertical notch 50 is also formed in each form 45 to receive a projection 51 on a latch plate 52 slidably supported between the plates 31 by rivets 53, 54 extending through a C-shaped slot 55 in the plate 52. Each plate 52 is movable between locking and releasing positions and an enlarged end 61 on a finger 60 resiliently resists movement of the plate between these two positions. To facilitate this movement a V-shaped notch 70 is formed in the plate 52 so as to be engaged by a pivotally mounted actuator 71 manually rotatable by a hand lever 74, Figs. 1 (not shown) and 2. In operation, as the forms 45 swing through an 180 degree arc as they pass around the sprockets 15, 17 the spacing therebetween is increased making it possible for an operator to install, remove or inspect a stocking on an individual form 45.
Patent GB-1324086-A (GB)
Title: Cleaning equipment for electrophotography
IPC: G03G21/00
Filed: 1970-07-14
Abstract: 1324086 Cleaning apparatus CANON K K 14 July 1970 [14 July 1969 (4)] 34142/70 Heading G2H A copy drum is cleaned, after image transfer, by means of a cleaning liquid and a cleaning member moving in the opposite direction to the drum to rub it. As shown, liquid 12 (e.g. water, alcohol, or Isopar (R.T.M.) is pumped through a tube 14 on to a roller 10 in rubbing contact with drum 1. A brush 11 removes the soiled liquid from roller 10, the liquid falls back into reservoir 15 and the toner therein adheres to a mesh electrode 16. Cleaning webs and belts are also described Figs.2-5, (not shown).
Patent GB-778246-A (GB)
Title: Polymer oil additive
Inventor: AGIUS PETER JOSEPH VERMONT JAM
IPC: C10M149/08
Filed: 1954-11-25
Abstract: Tripolymers are made from (1) a monoolefinic unsaturated nitrile; (2) a mono-olefinic unsaturated ester, hydrocarbon, alcohol, ether, halide or sulphide having a straight chain group of 8 to 18 carbon atoms; and (3) either a mono-olefinic unsaturated ester having less than 6 carbon atoms or a mono-vinyl aromatic compound.  Preferred nitriles (1) have the formula R-C­N, where R is a mono-olefinic group containing 2 to 20 carbon atoms, e.g. acrylonitrile and methacrylonitrile; preferred compounds (2) are esters of fatty alcohols with acrylic, methacrylic, crotonic, itaconic, maleic and fumaric acids, e.g. palm kernel fumarate and lauryl methacrylate, and esters of fatty acids with vinyl, allyl or crotyl alcohols; component (3) may be vinyl acetate, styrene or an alkylated styrene. Polymerization may be carried out in bulk with the aid of catalysts such as benzoyl peroxide, 1-hydroxy cyclohexyl hydroperoxide-1, sodiomalonic ester, sodium ethoxide, sodium ethyl magnesium bromide, stannic chloride, ferric chloride and sulphuric acid. Polymerization may also be initiated by ultra-violet radiation or alpha or beta radiation.  The products are used as additives to lubricating and fuel oils.ALSO:Oil compositions comprise an animal, vegetable or mineral lubricating oil or a fuel oil and a tripolymer made from a mono-olefinic unsaturated ester, hydrocarbon, alcohol, ether, halide or sulphide having a straight chain group of 8 to 18 carbon atoms, and either a mono-olefinic unsaturated ester having less than 6 carbon atoms or a mono-vinyl aromatic compound. Preferred nitriles have the formula R - C­N where R is a mono-olefinic group containing 2 to 20 carbon atoms, e.g. acryonitrile and methacrylonitrile, preferred mono-olefinic compounds containing an 8 to 18 carbon group are esters of fatty alcohols with acrylic, methacrylic, crotonic, itaconic, maleic and fumaric acids, e.g. palm kernel fumarate and lauryl methacrylate and esters of fatty acids with vinyl, allyl or crotyl alcohols; the third component of the copolymer may be vinyl acetate, styrene or an alkylated styrene.
Patent GB-445829-A (GB)
Title: Improvements in or relating to means for launching aircraft
IPC: B64D5/00
Filed: 1934-12-20
Abstract: 445,829. Aircraft carrying other aircraft. MAYO, R. H., 55, Pall Mall, London. Dec. 20, 1934, No. 34186/35. Divided application. Addition to 402,997. [Class 4] A composite aircraft of the kind described in the parent Specification comprising an overriding lock which at low altitudes prevents final release of the locking means, and a device responsive to changes in atmospheric pressure which is arranged to release the lock when the aircraft has gained a predetermined altitude. In one form, a capsule 10 operates a valve 27, through a lever 12, a rod 26 and a lost-motion spring, to open a port 30 to exhaust 35 and connect a port 36 to a source of fluid supply to move a piston 32 to the left to release a locking- lever 20 and release a roller 17. In a modification, the lever 12, Fig. 2, carries a contact piece 37 which closes one or other of circuits through solenoids 39, 41. Energization of solenoid 39 moves the valve 27 through an armature 40. A projection 42 on the lever 20 moves a rod 44 carrying contact pieces 45, 46 adapted to close respectively contacts e, b, g, h to ensure closure of the appropriate circuit through the electromagnets. In a further modification, closure of a circuit by the lever 12, through magnetic armatures 48, 52, closes the circuit through one or other of two electromagnets 49, 53 which through a core 50 operate the lever 20. In a still further modification, the magnets which operate the armature 48, 52 are constituted by high and low resistance winding arranged so that, should the circuit be broken by the lever 12, the appropriate lowresistance winding will maintain the armatures attracted and the electromagnet 49 or 53 energized to complete the movement of the lever 20.