baber/WOPTO huggingface dataset:
Patent GB-1204146-A (GB)
Title: Improvements in or relating to rotary transmission mechanisms
Inventor: ISHIKAWA SHOICHI
IPC: F16H49/00
Filed: 1967-11-23
Abstract: 1,204,146. Friction gearing. U.S.M. CORP. 23 Nov., 1967, No. 53381/67. Heading F2Q. In a harmonic drive friction gear comprising three coaxial members-a tubular member 10, 12, a radially deflectable ring 40, and a rotary wave generator 22 which radially deflects the ring 40 at circumferentially spaced points to cause progressive frictional engagement between the ring and the tubular member, one of the ring and the tubular member forming a reaction member so that the other rotates at a speed differing from that of the wave generator,-the ring 40 has circumferential ribs 44, each extending in a plane normal to the axis of the gear, adapted to engage wall portions 46 of corresponding circumferential grooves in the tubular member to increase frictional grip between the ring and the tubular member. As shown, a stationary housing forming the tubular member comprises longitudinally split halves 10, 12 bolted together (Fig. 5, not shown), and an end plate 16. The ring 40 has axial teeth at one end engaging a toothed flange 30 of an output shaft 28. An input shaft 20 carries the wave generator 22 which comprises an elliptical hub 32 supporting an outer ring 38 by means of balls 36. An alternative wave generator (Fig. 4, not shown) comprises three rollers (42) rotatably mounted at the vertices of a triangular plate. The apex angle of the ribs 44 and the grooves is in the range 20 to 40 degrees. In a modification, the ring and wave generator may be outside the tubular member, the wave generator acting inwardly. Fig. 6 shows a radially deflectable ring 50 for a two stage gear. A wave generator acts on the inside of a larger diameter half carrying ribs 54 which coact with a fixed tubular member. Ribs 56 on a smaller diameter portion coact with internal ribs on an output rotor. The components may be of metal or plastics.
Patent GB-1437489-A (GB)
Title: System for providing a visual representation of a compressional acoustic image field travelling in a fluid medium
IPC: G01H3/12
Filed: 1973-11-16
Abstract: 1437489 Acoustic imaging systems; ultrasonic couplings STANFORD RESEARCH INSTITUTE 16 Nov 1973 [25 May 1973] 53427/73 Headings H4D and H4J An acoustic imaging system includes an acoustically transparent window 16 on one side of which is incident the acoustic energy field propagating in a fluid 14 contained by the window, and a linear transducer array 22 which is scanned back and forth in contact with a liquid coupling layer on the other side of the window, the scanning direction being at right angles to the longitudinal direction of the array. The coupling liquid may be applied in a continuous stream between the array 22 and the window (a polyester membrane). Array 22 includes one or more (possibly curved) lines of transducers which are electronically scanned while the array as a whole is mechanically scanned by cam 36 and counter-balanced linkages 38, 40. The scanning is synchronized with the sweep voltages of a visual display device.
Patent GB-1097888-A (GB)
Title: Improvements in or relating to processes for the treatment of chalk ore
Inventor: MURRELLS DONOVAN JOHN
IPC: C04B2/00
Filed: 1965-12-20
Abstract: 1,097,888. Crushing chalk. GENERAL ELECTRIC CO. Ltd. Dec. 6, 1966 [Dec. 20, 1965], No. 53830/65. Heading B2A. A process for the treatment of mined chalk comprises bombarding a foraminous screen with the chalk, to shatter the chalk and separate the larger flints from the chalk fragments, impacting the chalk fragments and smaller flints to reduce the mean size thereof, further reducing the size of the impacted particles by attrition, and separating the remaining flint particles from the chalk particles. As described, mined chalk is fed into a rotary perforated drum 1, Fig. 2, having helically-arranged lifter bars 4, and ground autogenously, the flints issuing from the end and the required chalk and smaller flints being supplied via a belt 5 to an impactor. This has a crushing chamber 6, Fig. 3 and a rotor with hammers 8. The material is first crushed by impact with breaker blocks 10 and then further reduced by attrition between the hammers and attrition members 12. The reduced material may now be set screened and hydro-cycloned to remove flint. Fine particles from the second sizing stage may be ground in a wet ball mill, and further sized and classified.
Patent GB-1334091-A (GB)
Title: Devices for angular detent-positioning of a rotatable member
IPC: F16H25/00
Filed: 1971-11-19
Abstract: 1334091 Positive detents for rotary members PRODUMATIC 19 Nov 1971 [20 Nov 1970] 53883/71 Heading F2E A rotary member has a cam 2 corotatable therewith and having a periphery which decreases in radius about its axis from a first point to a second point at which lies a notch engageable by a roller follower 19 actuated by an hydraulic piston in a cylinder and movable along a line intersecting the axis so that the roller, if engaging the cam between the first and second points, causes cam rotation towards notch engagement; the roller follower 19 is mounted on a rocker 16 carried by the piston and pivotal relative thereto between a first position where the roller axis lies on the piston movement line and a second position where the roller axis is spaced from the line, the rocker being spring biased to the first position, the spring force being less than the maximum hydraulic force so that when the cam prevents movement of the roller along the line, further piston movement causing the rocker to pivot to the second position. This ensures that when the roller follower 19 engages the cam 2 at the maximum radial point, the rocker 16 is pivoted to the second position to move the roller to one side, and then initiate cam rotation for indexing. Similarly, when the roller follower 19 engages the notch 3, the hydraulic pressure increases to again pivot the rocker 16 against a stack of spring washers 22, thus moving the notch 3 to the right. The cam 2 may have a plurality of notches or there may be a plurality of circumferentially spaced hydraulically actuated rollers around the cam.
Patent GB-1487066-A (GB)
Title: Vehicle wheel suspension assemblies
IPC: B60G15/06
Filed: 1973-11-21
Abstract: 1487066 Motor vehicle suspensions BRITISH LEYLAND UK Ltd 5 Nov 1974 [21 Nov 1973] 54047/73 Heading B7D A motor vehicle rear suspension, Fig. 1, includes torsion bar springs 19, 20 secured at their outer ends to respective trailing arms 17 connected to an axle beam 1 and at their inner ends to a common lever 28 which is connected to an anchorage on the vehicle body by an hydraulic strut 30 communicating with a gas spring 32. A combined lever damper and levelling valve 34 regulates the length of the strut 30 to maintain a constant suspension height. Each trailing arm 17 is connected to the axle beam 15 by a compliant mounting 16 and has at its forward end a sleeve 18 which is connected to the body by a rubber bush. In a modification, Fig. 2 (not shown), the inner ends of the torsion bars are arranged in overlapping relation and are secured to respective levers connected to the body by separate hydraulic struts. In an independent front suspension, Fig. 3, torsion bars 31, 32 are secured at their front ends to lower wishbone arms 17, 20 and at their rear ends to levers 39, 40 connected to a common anchorage 47 on the body by hydraulic struts 41, 42 communicating with gas springs 43, 44. Compression, tension or leaf springs may be used instead of gas springs.
Patent GB-1383257-A (GB)
Title: Control device for a direct-reverse counter for an electronic phase  comparator
IPC: G01R25/00
Filed: 1972-11-27
Abstract: 1383257 Frequency comparison THOMSONCSF 27 Nov 1972 [30 Nov 1971] 54756/72 Heading G4H [Also in Division G3] The difference between two frequencies is continuously determined by applying the frequencies via gates to the up and down inputs of a counter; the gates being enabled alternatively by a signal of high frequency relative to the input frequencies. The frequencies F1 and F2 are applied to gates 3, 4 and are gated by direct (H) and antiphase (H) signals from oscillator 1. The outputs of the gates are shaped at 5 and 6 and applied to respective inputs of counter 7. An analogue representation (S) of the count may be produced by digital to analogue converter 8. In an alternative embodiment both the gating signal H and one of the frequencies may be derived from an oscillator by division. In a motor speed control system employing this method, (Fig. 4), frequency F2 is derived inductively by pickup 18 from wheel 17 on the motor 15 output shaft. The frequency of oscillator 10 is divided at 11 to give the gating frequency and at 12 and 13 to give frequency F2. The analogue difference signal resulting from converter 8 is used to control the motor speed.
Patent GB-1469300-A (GB)
Title: Circuit arrangement for an integrated data processing system
IPC: G06F13/42
Filed: 1974-12-19
Abstract: 1469300 Data processing systems OLYMPIA WERKE AG 19 Dec 1974 [22 Dec 1973] 55006/74 Heading G4A A circuit arrangement comprises a plurality of chips connected to a common collecting line, a first chip including a computing and control unit and a second chip including a read only memory and address and return address registers. The computing and control unit, Fig. 8, includes an arithmetic/logic unit 117 receiving a first operand from a register 122 and a second operand from a register 123 or a random access memory 110. The memory 110 may be addressed by two three-bit registers 111, 112, the latter receiving counting pulses, or by four bits in an instruction register 114. If the instruction register 114 provides the address "12" to the memory 110 this indicates that the memory 110 is to be addressed with the contents of address registers 111 and 112. If the instruction register 114 provides the address "13" or "14" to the memory 110 this indicates that the memory 110 is to be addressed with the contents of address registers 111 and 112 and that the address register 112 subsequently counts backwards or forwards, respectively. Further chips include a program store unit including a read only memory (150, Fig. 9, not shown) storing micro instructions, a data store unit including a random access memory (165, Fig. 10, not shown) and a program data store unit including a read only memory (175, Fig. 11, not shown) and a random access memory (177). Each chip may be connected to a peripheral unit, such as a keyboard, a printer, or a tape cassette. In each program store unit and program data store unit the read only memory is addressed by an address register (157, Figs. 9, 11, not shown) which normally counts counting pulses; if an addressed byte contains a jump instruction the jump address is transferred into the address register and a second register (160) contains the interruption address plus 1; if the sub-program also contains a jump instruction the address register contains the jump address, the second register contains the interruption address of the sub-program plus 1 and a third register (161) contains the interruption address of the main program plus 1. This is extended by the use of a fourth register (162), the fourth register also addressing the random access memory in the program data store unit and addressing constant data in the read only memory in the program store unit. Return to the interrupted program may then be accomplished.
Patent GB-1209146-A (GB)
Title: Substituted tetraazaindene compounds and their use as stabilizers for photographic silver halide emulsions
Inventor: ANDERSON GEORGE DE WINTER
IPC: C07D487/04
Filed: 1966-12-09
Abstract: 1,209,146. Tetraazaindene derivatives. MINNESOTA MINING & MFG. CO. 8 Dec., 1967 [9 Dec., 1966], No. 55364/66. Heading C2C. [Also in Division G2] Tetraazaindene derivatives of the general formula where R is H, alkyl or alkylthio, R<SP>1</SP> and R<SP>11</SP> are H, C 1-6  alkyl, or substituted alkyl, or R<SP>1</SP> and R<SP>11</SP> together form part of a ring, and Y represents H, or an alkyl, alkylthio, aryl or amino group are prepared by reacting a compound of formula with formaldehyde or paraformaldehyde and an amine containing the grouping R<SP>1</SP>R<SP>11</SP>N-, preferably under non-aqueous conditions between 20‹ and 90‹ C. The product may be obtained as a salt with the amine, and is liberated therefrom by conventional methods. Alkali metal and ammonium salts are also claimed. The compounds are used as stabilizers for photographic silver halide emulsions.
Patent GB-555191-A (GB)
Abstract: 555,191. Glycerine ethers. GEIGY AKT.- GES., J. R. Dec. 20, 1940, No. 17943. Convention date, Dec. 23,1939. [Class 2 (iii)] Glycerine diethers, one ether radical of which is a saturated or unsaturated alkyl radical of 2 to 4 carbon atoms and the other is a propenyl radical which may contain bromine or is a phenyl or alkoxy-phenyl radical, but two like unsubstituted, unsaturated alkyl radicals are not present alone, are made by heating a glycerine halogenhydrin or an epi-compound of glycerine or of a mono- or di-ether or a halogenhydrin of such a compound with the appropriate alcoholate. Bromine may be present in the starting materials or subsequently introduced and unsubstituted ether groups may be produced by elimination of hydrogen bromide. Examples give the preparation of 1-ethoxy-3- propenoxy-propanol-2, 1-ethoxy-3-(o-methoxyphenoxy) - propanol - 2, 1 - ethoxy - 3 - bromopropenoxy - propanol - 2, 1 - isobutoxy - 3 - propenoxy - propanol - 2, 1 - isobutoxy - 3 - bromopropenoxy - propanol - 2, 1 - isopropyloxy - 3 - phenoxy - propanol - 2, and 1 - propenoxy - 3 - phenoxy - propanol - 2. Instead of simple alcohols, substitution products thereof, e.g. halogenhydrins, ether-alcohols and polyhydric alcohols may be caused to react with epiarylines. The products have hypnotic properties. The Specification as open to inspection under Sect. 91 states that the ether radicals may be alkyl of which at least one is unsaturated or (and) branched with the same limitation as above. Examples are given of the preparation of ethoxy-isobutoxy-propanol and 1-tetrahydrofuryloxy-3-phenoxy-propanol-2. This subjectmatter does not appear in the Specification as accepted.
Patent GB-1168175-A (GB)
Title: Bearings for Variable Sweep Aircraft Wings
Inventor: LINK ANTON
IPC: B64C3/40
Filed: 1967-12-11
Abstract: 1,168,175. Variable sweep wings. ENTWICKLUNGSRING SUD G.m.b.H. 11 Dec., 1967 [22 Dec., 1966], No. 56278/67. Headings B7G and B7W. [Also in Division E2] The wing 1 of a swing wing aircraft pivots about a vertical axis 3 in a bearing comprising two parallel horizontal members 11, 12 displaced along the axis 3 extending from the wing structure, each member 11, 12 being sandwiched between two parallel horizontal members 23 . . . 26 extending from the aircraft fuselage structure (or a stub wing 2). There may be bearing layers 51 coated with low friction plastics at the horizontal interfaces 53 between members 11, 12 and 23 . . . 26, to transmit vertical forces; horizontal forces being transmitted by a cylindrical interface between the members 11, 12 and discs 41, 42 secured by bolts 4 to the members 23 . . . 26. Also interconnecting the layers 51 and the discs 41, 42 are pins or screws 45, thus enabling the wing 1 to be removed after removing only the bolts 4 without having to dismantle the bearing further.
Patent GB-1161477-A (GB)
Title: Improvements in Mechanical Handling Devices
Inventor: WELSH ROBERT JAMES
IPC: B23Q7/04
Filed: 1966-12-16
Abstract: 1,161,477. Transferring workpieces to and from machine tools. CHURCHILL MACHINE TOOL Ltd. 15 March, 1968 [16 Dec., 1966], No. 56368/66. Heading B3B. [Also in Division B8] A loading and unloading device e.g. for a machine tool comprises a carriage 1 movable on a gantry 2 between supply and loading stations, the carriage 2 supporting a pair of arms 4, 5 each of which terminates in a work gripper, the arms 4, 5 being mechanically operatively interconnected so that e.g. as one arm moves towards and into work gripping position the other arm moves away therefrom. Each arm 4, 5 is supported by a pair of parallel links 7, 9 and 8, 10 the upper link of each pair being the shorter of the pair in order to provide substantially straight-line motion of the work gripper. An oscillatable crank 12 is driven by a drive shaft 11 and is connected to a rocker arm 14a which actuates and is common to both arms 4, 5. The pivotal mounting point 21a of link 10 for the arm 5 is itself located on an arm 37 which can be displaced by cam means 40, 41 in order to modify the position into which a treated workpiece is released e.g. adjacent the supply point for untreated workpieces. The work-gripping devices are opened and closed at appropriate cycle times under the control of respective oscillatable cams 35; and each work gripper comprises jaws 6b operated by toggle levers 23, 24, urged to closed position by a spring 22 and opened by a rod 26 which passes through the arm 4 or 5 and is moved longitudinally in its arm by a quadrant 28 controlled by a rod 32.
Patent GB-1373009-A (GB)
Title: Cargo vessel for carrying liquid cargo
IPC: B63B25/10
Filed: 1971-12-07
Abstract: 1373009 Carrying liquid cargo MITSUI SHIPBUILDING & ENG CO Ltd 7 Dec 1971 [14 April 1971] 56664/71 Headings B7A and B7S A cargo vessel for carrying liquid cargo has liquid-tight structural bulkheads 1 which have a strength satisfying the structural requirements for the hull 2. The spaces between the structural bulkheads are divided into compartments by separating bulkheads 7, 8 which have less strength than the structural bulkheads. Interconnecting valves or doors 9 are provided at the bottom of each separating bulkhead between the compartments and loading/unloading pipes are provided to each space between the structural bulkheads.
Patent GB-1275480-A (GB)
Title: Method for preserving food against putrefaction
Inventor: UENO RYUZO
IPC: A23L1/00
Filed: 1969-11-19
Abstract: 1275480 Preserving food UENO PHARMACEUTICAL CO Ltd 19 Nov 1969 56729/69 Heading A2D Food is preserved by adding thereto an organic acid type preservative which is sorbic acid, potassium sorbate, calcium or sodium propionate, and granules of a size less than 500 microns, which granules comprises 25-40% of a pH-lowering agent coated with a hardened oil having a melting point of 50-80‹C each granule containing 25-40% by weight of the pH-lowering agent. The pH-lowering agent is fumaric acid, monosodium fumarate, tartaric acid, malic acid or citric anhydride. The organic acid type preservative may be utilised as a similarly coated granular. Alternatively the preservative and pH-lowering agent may be mixed and then formed into coated granules. The process is exemplified by the preservative on Vienna sausages, fish sausages and bread.
Patent GB-1298042-A (GB)
Title: Machine for cutting rod-like articles into required lengths
IPC: B26D3/16
Filed: 1970-12-04
Abstract: 1298042 Cutting rod-like articles TWENTIETH CENTURY BLINDS PTY Ltd 4 Dec 1970 [23 Dec 1969] 57782/70 Headings B4B and B5L A machine for cutting rod-like articles into required lengths comprises a flywheel 9, Fig. 1, rotatably mounted on a machine base 7; drive means for rotating the flywheel; a cradle 12 in which an article 17 to be cut may be rested and held with its longitudinal axis substantially coincident with that of the flywheel; and a first order lever 26 fulcrumed on the flywheel so as to be pivotable in a plane normal to the flywheel axis, the lever carrying a knife 28 at one end and a weight 30 heavier than the knife at its other end. In the machine shown the workpiece 17 is supported in the cradle 12 with the portion to be cut off passing through apertures 16 in the flywheel 9 and a bearing 8 therefor. A pivoted clamping plate 18, Fig. 5, is lowered on to the workpiece and hand pressure exerted on a handle 21 pivoted at 22 to the plate 18. Movement of the handle 21, against the action of a spring 25, towards the plate 18 causes a microswitch 39, Fig. 1, carried by the plate 18 to be operated by a striker on the handle 21. This energizes an electric motor to drive the flywheel 9. Consequently the weight 30 is urged outwardly of the flywheel so that the knife 28, in this case a disc, cuts into the workpiece. The machine may include a tape measure 36. The position of the cradle 12 may be adjustable. The machine may be used to cut rollerblinds or rollers therefor, cardboard tubes or timber.
Patent GB-1451939-A (GB)
Title: Process for oxychlorination of ethylene
IPC: C07C17/02
Filed: 1973-12-17
Abstract: 1451939 Oxychlorination of ethylene SHELL INTERNATIONAL RESEARCH MAATSCHAPPIJ BV 17 Dec 1973 [19 Dec 1972] 58280/73 Heading C2C Ethylene dichloride is prepared by contacting ethylene, HCl and O 2  in the vapour phase in a reaction zone at 230-355‹ C. in the presence of a fixed-bed, supported cupric chloride-based catalyst, wherein ethylene is introduced to the inlet portion of the reaction zone in a sufficient stoichiometric excess, HCl and O 2  being added at a sufficient plurality of points throughout the reaction zone to maintain the HCl : ethylene molar ratio below 0À7 : 1 and the O 2  : ethylene ratio below 0À12 : 1 in the reaction mass during passage through the zone, and separating the resulting effluent into at least one ethylene dichloride-containing liquid phase and an organic vapour phase containing at least 55% v. ethylene. A portion of the non-product containing effluent is preferably removed, make-up ethylene admixed with the stream and recycled to the inlet end of the reaction zone. The O 2  is preferably of at least 95% vol., HCl at least 98À8% vol. and ethylene at least 70% vol. purity. The catalyst preferably contains 1-20% wt. of cupric chloride on a carrier based on the weight of Cu to Cu plus carrier. The catalyst concentration is advantageously incrementally increased from the reaction inlet end to the effluent end of the reaction zone. Three reactor sections are preferably employed with 30-60% vol. of total HCl added to each of the first and second sections but no more than 30% vol. to the third and O 2  is added such that 30-45% vol. of the total is added to the first and second sections and 10-40% vol. is added to the third.
Patent GB-1458980-A (GB)
Title: Process for the preparation of cyclohexanediones-1,3
IPC: C07C49/657
Filed: 1973-12-17
Abstract: 1458980 Preparation of cyclohexan-1,3-diones HOECHST AG 17 Dec 1973 [16 Dec 1972] 588370/73 Heading C2C The invention comprises a process for the preparation of compounds of Formula I by isomerizing a compound of Formula II or for the preparation of a compound of Formula III by isomerization of a compound of Formula IV the isomerizations being carried out in the presence of a base and of a solvent which comprises at least 50% of a compound, or of a mixture of compounds selected from (a) carboxylic acid amides of Formula V (b) phosphoric acid amides of Formula VI and (c) sulphoxides and sulphones of Formulae VII and VIII wherein radicals R are independently H, alkyl or aryl, radicals R<SP>1</SP> are independently H, alkyl or aryl or both radicals R<SP>1</SP> together represent an alkylene group, radicals R<SP>11</SP> are alkyl or aryl and radicals R<SP>111</SP> are alkyl or aryl or both radicals R<SP>111</SP> together form an alkylene group.
Patent GB-1342146-A (GB)
Title: Transmission devices
IPC: D04B15/94
Filed: 1971-12-17
Abstract: 1342146 Knitting-machines ETUDES ET BONNETERIE SA 17 Dec 1971 [26 Jan 1971] 58638/71 Heading D1C [Also in Division F2] The drive coupling to the dial gear 4 of a circular machine comprises part shaft 10, 11 having recessed interfitting ends defining opposed faces 16, 17 between which a wedge 12 is secured. By inverting the wedge the relative disposition of the needles in the upper and lower beds can be adjusted, viz from rib to interlocking set-up and vice versa. In a modification (Figs. 5, 6 not shown) the lower part shaft is received in a hollow in the upper shaft. A pinion is integral with the upper shaft.