baber/WOPTO huggingface dataset:
Patent GB-807849-A (GB)
Title: Improvements in or relating to the production of cystine
Inventor: JOULLIE MAURICE
Filed: 1956-11-26
Abstract: Cystine is prepared by subjecting a symmetrical compound of the general formula <FORM:0807849/IV (b)/1> wherein R1 is an alkyl group containing not more than 4 carbon atoms and R2 is an unsubstituted amino, a carboxylic acylamido or a carboxylic acylimido group to decarboxylating hydrolysis by heating in an aqueous acidic medium. The disulphides used as starting materials may be prepared by the method described in Specification 807,850 and may be used in the present process without being isolated from associated partial hydrolysis products which also serve as a source of cystine.  The aqueous acidic medium preferably comprises a 5-30 per cent aqueous solution of a strong acid which solution is generally used at its boiling-point.  The reaction may be accelerated by the addition of a smaller proportion of acetic acid or dioxane to the strong acid solution.  In examples: (1) the crude white bis-(a -acetamido - a ,a - dicarbethoxyethyl) - disulphide obtained in Example 1 of Specification 807,850 after removal of benzene solvent is heated under reflux with 25 per cent aqueous HCl; the mixture is then rendered neutral, cooled, the resulting precipitate is dissolved in aqueous NH3 and then acetic acid is added whereby is obtained a mixture of dl-cystine and meso-cystine which can be separated; the corresponding formamido, phthalimido or unsubstituted amino disulphides may be treated similarly; (2) the crude formido product obtained in Example 3 (b) of the above-mentioned Specification, after removal of the ethanol solvent is heated under reflux with 25 per cent aq. HCl containing some acetic acid and the product is worked up substantially as in (1) to isolate the resulting cystine product.
Patent GB-1515297-A (GB)
Title: Plugs for tubular members
IPC: F16B7/02
Filed: 1975-08-15
Abstract: 1515297 Screw sockets; joints for tubular frames A B COMENS 15 Aug 1975 [16 Aug 1974 25 Sept 1974] 36196/74 and 41769/74 Headings F2H and F2M An expansible plug 10 for securing a tubular member 12 to another member 26 (Fig. 1) or 13 (Fig. 7) is slidable into the end of the tubular member 12 and has an axial bore 16 leading from the outer end of the plug to a cavity 18 housing an insert 20 or 21 engaged by a screw 22 rotatably extending through the bore 16 so that rotation of the screw moves the insert longitudinally, the sides 24 of the cavity being shaped so that movement of the insert 20 or 21 towards the outer end of the plug expands the plug radially to grip the tubular member 12, the plug 10 having longitudinal splits 25 and distortable laterally projecting portions 28 or a cut-back enlarged portion adjacent the outer end of the plug to engage the inside of the tubular member so that the plug can be a firm push fit into tubular members of different internal sizes prior to expansion of the plug. The tubular member and the plug may be of square or circular cross-section, and the plug has an enlarged head 14. The plug is preferably of plastics. In Figs. 1 and 7, the insert 10 is a hexagonal nut which fits into a cavity 16 of hexagonal cross-section. In Fig. 6 a metal hexagonal nut 31 is embedded in a plastics insert 21 having a frusto-conical portion 27. In Fig. 7, a frusto-conical washer 33 is urged by the nut 20 into the tapered portion 24 of the cavity. Pips 35 on the plug head 14 engage holes 37 drilled in a second tubular member 13 to be secured to the member 12. In Fig. 9, a bolt 39 threaded at both ends engages the nuts of respective plugs 10 in adjacent ends of tubular members 12, 17, and extends through a tubular element 15 to which a tubular element 19 is secured using a further plug 10. The inserts are tightened to expand the plugs in members 12, 17 by rotating the member 17 about its longitudinal axis relative to the rest of the structure. The laterally projecting portions may be formed by portions (32) of the plug outer surface adjacent the head which diverge outwardly from the plug axis towards the head (Fig. 5, not shown).
Patent GB-411937-A (GB)
Title: Improvements in or relating to power transmitting flexible couplings
IPC: F16D3/78
Filed: 1932-12-21
Abstract: 411,937. Universal joints. LEJEUNE, L. S. M., 1, Place Gambetta, Wasquehal, Nord, and BONGRAND, J. E. C., 95, Rue de Monceau, Paris, both in France. Dec. 21, 1932, No. 36250. Convention date, Dec. 21, 1931. [Class 80 (ii).] A process for manufacturing a powertransmitting resilient coupling element such as a disc comprises impregnating unwoven textile yarns, fibres, threads, or cords with rubber by immersing them in an aqueous dispersion of rubber to which fluid pressure is subsequently applied, as described in Specification 344,414, [Group VIII], weaving or laying the impregnated threads &c. so that they lie mainly in the direction of the stresses to be imposed on the element, and impregnating the woven or laid element with a rubber dispersion and thereafter coagulating and vulcanizing the mass under heat and pressure. In the form shown, a flexible disc 1 is formed by winding up threads 9, formed of twisted impregnated cotton yarn, in a mould around pins 7 which occupy the position of the bolts which fix the disc to the shafts. Radial threads may be added if desired. Such discs may be combined with layers of impregnated felted textile fabric or sheets of rubber, or two or more discs may be united by rubber sheets, both the discs and the rubber being initially treated in a bath to facilitate their welding together. The mass is then further impregnated before vulcanization. Before or during impregnation, there may be introduced into the threads or the woven disc vulcanizing agents, accelerators, anti-oxidants, and filling agents carried in suspension or in solution in the impregnating latex.
Patent GB-430924-A (GB)
Title: Improvements in or connected with folding chairs
IPC: A47C4/40
Filed: 1933-12-28
Abstract: 430,924. Seat adjustments. GREEN, A. W., and HAWKINS, J. E., Rope Works, Summerheath Road, Hailsham, Sussex. Dec. 28, 1933, No. 36471. [Class 52 (ii)] The crossbar of the adjustable strut frame of a deck chair engages notches in the side bars 2 and lies flat on the sloping face 7, of the notch and by means of a nosing 9<a> engages an undercut recess 8 at the end of the notch. The slope of the face 7 is varied for each notch of the adjustment. Specification 978/00, [Class 52 (ii)], is referred to.
Patent GB-786209-A (GB)
Title: Process and apparatus for the decomposition of alkali metal amalgams
IPC: C25B1/42
Filed: 1954-12-17
Abstract: A process for decomposing alkali metal amalgams in a short-circuited denuder cell in which the amalgam acts as anode and is brought into contact simultaneously with water and with the cathodes, comprises subjecting the cathodes to a rapid oscillatory motion, e.g. periodically, by means of electromagnetic vibrators. The cathodes may be grids floating on the amalgam, vibrators being attached to some of the grids and receiving current either by brushes contacting iron supply bars fixed along the sides of the cell, or by the cell body. Alternatively, the vibrators may be carried by the cell and periodically made to contact the grids, e.g. each vibrator may be mounted on a hollow vertical shaft passing through the lid of the cell whereby the vibrators may be lowered at will, or the field windings of the vibrators may be mounted on the lid internally or externally, the cores being fixed to or resting on the appropriate cathodes.
Patent GB-1193797-A (GB)
Title: Inspection Apparatus for Glass Sheets
IPC: G07C3/14
Filed: 1968-08-02
Abstract: 1,193,797. Gauging glass sheets. LIBBEYOWENS-FORD CO. Aug. 2, 1968 [Aug. 11, 1967], No. 36906/68. Heading G1M. Drilled holes 38 in vehicle window glass 14 are checked for position by placing the glass against stops 35 and on pads 22. The pads are adjustably mounted on brackets 23, 24 on a replaceable table 15 supported by 16 and a pedestal 10. If the hole positions are correct then nylon pins 37 are received by the holes and adjustably positioned series connected switches 41, 42 are made to operate a relay circuit controlling a sand blasting, stencilling and etching device B which is clamped on to and marks the glass which itself is held clamped in place. Switch 41 abuts the edge of the glass and switch 42 the underside.
Patent GB-1132239-A (GB)
Title: Liquid-ejecting nozzle
Inventor: BOUCHER PERCIVAL LIONEL
IPC: B01D33/00
Filed: 1965-08-28
Abstract: 1,132,239. Spray producers. GLENFIELD & KENNEDY Ltd. 8 Aug., 1966 [28 Aug., 1965], No. 37076/65. Heading B2F. A nozzle suitable for washing filters comprises a tubular casing I having a port 2 in its side wall, a tubular liner 12 located in the casing I so that its upper end forms an annular valve seat part of the way across the port, and a plunger 4 biased by a spring into engagement with the annular seat, the end 3 of the casing being connected to a water supply. A projection (5), fig. 4 (not shown) on the plunger extends within the liner and the discharge outlet, which produces a fanshaped discharge, is defined by surfaces (6), (6A) and (6B) and the adjacent upper edge of the liner. The plunger is located in position by cross pins 11 which may be used to raise the plunger for cleaning &c. Excessive water pressure in operation may also raise the plunger against the pressure of the spring.
Patent GB-1285000-A (GB)
Title: Process and apparatus for cooling a breeder reactor
IPC: G21C15/04
Filed: 1970-07-31
Abstract: 1285000 Cooling reactors KERNFORSCHUNG mbH GES FUER 31 July 1970 [6 Aug 1969] 37079/70 Heading G6C In a fast, sodium cooled breeder reactor, the sodium flows upwards, through the tube 11 of the breeder element, 5, of the breeder jacket, 3, and downwards through the annular space between tubes 11 and 12. The sodium leaving the jacket, 3, passes through the chamber, 13, and flows upwards through the fuel elements, 4.
Patent GB-1061827-A (GB)
Title: Transistorised ignition circuits
IPC: F02P15/12
Filed: 1965-08-31
Abstract: 1,061,827. Ignition systems. RADIO CORPORATION OF AMERICA. Aug.31, 1965 [Sept. 16, 1964], No.37201/65. Heading F1B. An ignition system in which,a transistor 12 controls the current flow in the primary winding 18 of the ignition coil comprises circuit means coupled to the base electrode and responsive to opening and closing of points 32 to render the transistor respectively non-conductive and conductive and means including an emitter resistor 14 to cause the transistor to conduct in a saturated manner during the early part of current build up therethrough when the points are closed and to limit maximum current flow therethrough to a predetermined operating value means including the emitter resistor may comprise at least one diode connected between the base and emitter electrodes through the emitter resistor. The circuit means may include a second transistor 24, but a circuit employing no driving transistor is described. A modification of Fig. 1 in which additional current limiting is provided is described.
Patent GB-1377405-A (GB)
Title: Key-actuated locks
IPC: E05B21/00
Filed: 1973-07-26
Abstract: 1377405 Locks P A TERRY and R REYNOLDS 26 July 1973 [10 Aug 1972] 37376/72 Heading E2A  A lock has lever-tumblers 15, 16 of different lengths so that they co-operate respectively with abutments 17 and 18 spaced along the bolt. This is to frustrate release by drilling. The ends of the tumblers may be serrated, as shown, and one of the tumblers may have a notched opening 20 to engage a projection 19 to hold the bolt in its withdrawn position.
Patent GB-1091586-A (GB)
Title: Adjustable pierce unit
Inventor: WILLIAMSON FLOYD MITCHELL
IPC: B21D28/24
Filed: 1965-09-06
Abstract: 1,091,586. Punching. DI-DRO ENGINEERING CO. Sept. 6, 1965, No. 37934/65. Heading B3W. A fluid actuated piercing unit comprises a body 10 containing a piston 18 which is moved downwardly by fluid pressure and is returned by a spring 44. The length of the stroke is limited by an exchangeable collar 50 which rests on a washer 40 supported by a bearing cap 22 which closes the lower end of the cylinder. A cup-shaped clamping sleeve 26 fits on an extension of the bearing cap and is bolted thereto. Between the end faces of the bearing cap and the clamping sleeve is a washer 30, an integral key 31 on the washer engages a longitudinal slot 21 in a piston rod 20, 38 and prevents the rod rotating. At the lower end of the enlarged portion 38 of the rod is a socket 54 in which one end 56 of a punch 52 is held by a screw 58. A cylindrical stripper sleeve 62 fits round the socket and has an internal axially extending groove 69. There is an external annular groove in the outer periphery of the sleeve and a ball 68 is seated at the intersection of the grooves. The screw 58 passes through a longitudinal slot in the sleeve, so that the sleeve is free to move axially, and can be removed by taking out the screw 58 and rotating the sleeve through 180 degrees until the ball registers with the hole 59 in the socket. The stripper is loaded by a spring 64. The punch 52 co-operates with a die 70.
Patent GB-369234-A (GB)
Title: Improvements in personal wear signals for indicating manoeuvring of vehicles
IPC: G08B5/36
Filed: 1930-12-16
Abstract: 369,234. Personal wear signals. WARE, R. E., 21, Cathedral Yard, Exeter. Dec. 16, 1930, No. 37966. [Class 118 (ii).] A signalling device for at. tachment to the hand of the driver of a vehicle comprises a glove member 1 of white or other colour fabric with the palm side removed and a pocket 2 for the fingers, an elastic strip 3 connecting the edges of the member. The back of the member 1 may carry a reflector, and the fingers may be housed in individual pockets instead of a common pocket. Specification 356,929 is referred to.
Patent GB-1018934-A (GB)
Title: Method and apparatus for fragmentary rocks or rock formations
IPC: B02C19/18
Filed: 1962-10-08
Abstract: In a rock reduction plant large pieces of rock delivered from a hopper on to a conveyer belt are, on being carried forward by the belt, sprayed with a conductive fluid on passing under spray means, air dried on the surface, and then fragmented on being contacted by electrodes connected to a source of electrical potential e.g. a high voltage pulse generator.  The potential causes current to flow with subsequent localized heating effects through the conductive paths formed by the conductive fluid-filled interstices of the rock.
Patent GB-838699-A (GB)
Title: 1-(ª‰-hydroxy-ethyl)-2-methylmercapto-2-imidazolinium chloride and a process for its preparation
IPC: C07D233/42
Filed: 1958-11-26
Abstract: The invention comprises 1-(b -hydroxyethyl)-2 - methylmercapto - 2 - imidazolinium chloride, and its production by methylating 1-(b -hydroxyethyl) - imidazolidine - 2 - thione with methyl chloride in an anhydrous solvent at 45-75 DEG  C. and 20-90 pounds per square inch pressure.
Patent GB-997214-A (GB)
Title: Control circuits for regulators
Inventor: KING KENNETH GORDON
IPC: G05F1/455
Filed: 1960-11-08
Abstract: 997,214. Transistor oscillating circuits. WESTINGHOUSE BRAKE & SIGNAL CO. Oct. 27, 1961 [Nov. 8, 1960], No. 38280/60. Heading H3T. A control circuit for an A.C. regulator which incorporates a SCR, produces trains of firing pulses having a repetition frequency much higher than the A.C. supply, or in the form of extended pulses derived from the trains. In a first embodiment, Fig. 3, the control circuit is supplied from an A.C. supply in synchronism with the A.C. supply to the regulator. Four rectifiers MR1-MR4 are arranged to provide the D.C. supply for the circuit and also to supply control voltages for transistor VT1, via resistors Rl, R2. During most of the A.C. cycle the control voltage at the base of VT1 is negative, holding VT1 conducting and diode MRS cut off, thus allowing capacitor C2 to charge exponentially through resistor R6. At the instant when the A.C. signal passes through zero, VT1 is cut off, diode MR5 conducts and capacitor C2 discharges through resistor R4 producing a sawtooth signal synchronized with the incoming A.C., and at twice its frequency. The sawtooth produced is used to switch on and off transistor VT2, the point in the cycle at which switching occurs being determined by a D.C. control signal applied at terminals e, f. Switching of VT2 in turn controls a blocking oscillator stage VT3 to produce trains of pulses of predetermined duration, Fig. 5, which are used to fire the rectifiers in the control circuit. The pulses are lengthened or completely smoothed by rectifiers MR7, MR8 and capacitors C5, C6 in the output circuits. In a modification. Fig. 8, the stages comprising transistors VT2, VT3 are duplicated by similar stages VT4, VT5 and blocking pulses are provided by the bridge MB1-MR4 which block VT2, VT4 alternately on alternative half cycles. Thus, the pulse brain is produced at output gh during one half cycle, and at output jk during the subsequent half cycle. In a further embodiment, Figs. 10, 11, during the period where VT1 is cut off capacitor C2 charges to a potential determined by Zener diode D7. The sawtooth and D.C. control are mixed via the base-emitter circuit of VT4, the resulting sawtooth being amplified by VT5. The output from VT5 is split and fed to two blocking oscillator stages VT6, VT7 the bases of which are held positive on alternate half cycles by transistors VT2, VT3.
Patent GB-342836-A (GB)
Title: Improvements in or relating to electromagnetically-operated interrupters
IPC: H02K41/025
Filed: 1929-12-14
Abstract: 342,836. Power hammers. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Merrill, W. L. ; 223, Union Street, Schenectady, New York, U.S.A.) Dec. 14, 1929, No. 38386. Convention date, Dec. 14, 1928. [Class 83 (iv).] Solenoid actuating mechanism.- A contactor 16 for controlling intermittently-actuated apparatus such as a planing machine or drop-hammer 13, has its solenoid 18 controlled by varying the impedance of a coil 21 under the control of the hammer. Closure of the switch 19 causes the contactor 16 to close and energize the winding 11, thereby causing the hammer 13 to rise. Towards the end of its'upward movement the end 27 engages the end 23 of a sliding non-magnetic piece 22 having a magnetic insert 25 which, by coming up adjacent the core 20, increases the impedance of the coil 21, so that the solenoid 18 is de-energized sufficiently to drop the contactor 16 and allow the hammer to fall. This stroke of the hammer draws down the piece 22, whereupon the cycle is repeated.
Patent GB-927710-A (GB)
Title: A dispenser and collector for barbed wire and other elongated materials
IPC: B65H75/40
Filed: 1960-11-12
Abstract: 927,710. Barbed wire reels. D. S. GRIFFITH. Feb. 9, 1962 [Nov. 12, 1960], No. 38931/60. Class 99(2). A dispenser and collector for barbed wire, plain wire, cable or flexible hose pipes comprises a three cornered framework, one corner of which carries an axle 8 and wheels 9 for the transport of the dispenser and collector over the ground, another corner of which has the dual function of supporting and immobilising the dispenser and collector when on the ground and of providing a steering and propelling handle 6 when lifted from the ground, and the third corner of which carries an axle 11 for supporting interchangeably a reel for the dispensing of wire, and a spool for the winding in of wire. As shown the axle 11 carries angle iron members 17 attached to the axle by split pins 19 and secured to the opposite sides of a conventional wooden spool 20. A handle 12 is secured to the axle by split pin 13. Alternatively the axle may carry two X-frames made of angle section metal and having hubs by which they may be secured to the axle by split pins. The arms of the X-frames may be notched and apertured so that wires, strings or cables may be threaded from one frame to the other before winding begins so that the wound coil may be tied up by such wires, strings or cables. A pawl and satchet device may be provided on the axle.
Patent GB-973180-A (GB)
Title: Improvements in or relating to inflatable liferafts
Inventor: SMITH REX STANLEY
IPC: B63C9/22
Filed: 1962-10-16
Abstract: 973,180. Inflatable craft and launching same. P. FRANKENSTEIN & SONS (MANCHESTER) Ltd. Oct. 15, 1963 [Oct. 16, 1962], No. 39040/62. Headings B7A and B7S. An inflatable liferaft comprising a flexible impermeable floor 7 and canopy 14 both marginally united to an inflatable tubular gunwale 5 and adapted for lowering by means of a single fall 19 in inflated condition, has an oval plan form with opposed ports of its gunwale united by a inflatable tubular thwart 8 and two inflatable tubular arches 9 which are connected by longitudinal tubes 10 at opposite sides of the raft's centre-line, said tubes defining the upper edges of closable entrance openings 15 in the canopy 14 supported by this inflatable superstructure, which also assists the tubular thwart 8 to brace the raft against the pull of suspension bridles 20, 24 extending to its floor and gunwale. Initially the raft stowed in its valise from which the shackle 21 projects is carried to its launching position by the guard-rail 30 and is tied to deck cleats 34 by bowsing lines 33 attached to the gunwale and projecting from the valise. The raft is inflated automatically from compressed gas bottle 11 in the usual manner, and when loaded is lowered automatically from the slewing davit 28 under gravity at a speed controlled by a centrifugal brake. When the raft becomes fully waterborne the fall hook 31 automatically releases the shackle 21.
Patent GB-1122028-A (GB)
Title: Method of producing cellulosic spun yarn
Inventor: SPENCER-SMITH JOHN LIGHTFOOT
IPC: D01F2/06
Filed: 1964-09-25
Abstract: In the production of spun yarn, at least two batches of cellulosic filamentous or fibrous material e.g. viscose rayon, cotton or flax, are given similar shrinkage treatments but to different degrees to impart different shrinkage properties to the material of the respective batchs.  The treatment may comprise subjection of the material to a shrinking agent such as caustic soda, or to a cross-linking agent such as dimethylol ethylene urea, or, in the case of viscose rayon material, drying the wet material under different degrees of strain.  The yarn, before or after formation into fabric, is bulked by subjection to uniform treatment e.g. wetting with water, whereby the filaments or fibres shrink differentially, and may be set by a cross-linking treatment.  The final yarn may comprise a compact core surrounded by an open fibrous structure.