baber/WOPTO huggingface dataset:
Patent GB-738226-A (GB)
Title: Improvements in and relating to automatically releasable shaft coupling and driving apparatus, especially for engine starters
IPC: F02N7/04
Filed: 1953-07-27
Abstract: 738,226. Turning gear. GRATZMULLER, J. L. July 27, 1953 [Aug. 6, 1952],No. 20791/53. Class 7(5). [Also in Groups XXIV and XXXII] A clutch comprises a driving member 6, Fig. 2, adapted to be shifted axially, a driven member, positive clutch elements 7, 8 on the two members interengageable when the driving member is shifted axially, a declutching spring 15 and a clutching spring 22, the clutching spring 22 being stronger than the spring 15, and means rotatively fast with the driving member to prevent the spring 22 from engaging the clutch in at least one angular position of the driving member. When the driving clutch member 6 is in the disengaged position, as shown, the clutching spring 22 acts on a pin 21, having a conical end, to push it against the surrounding casing and engage it loosely in a conical recess 23 in the driving clutch member 6. On rotation of the clutch driving member 6, the pin 21 rides out of the recess and the clutch is then engaged by the spring 22 overcoming the spring 15 to move the driving member 6 to the right of Fig. 2. When one rotation of the engaged clutch has been completed, the conical point of the pin again enters the recess and the clutch is disengaged by the spring 15. The device is described as applied to a starter for an internal combustion engine having a crankshaft 9, the driving clutch member being formed integrally with a pinion 1, axially slidable on a shaft 27 and engaging a rack 10, Fig. 1, by which it is turned on the admission of fluid from a hydraulic-pneumatic accumulator through a conduit 13 to a cylinder 12 formed by the rack support, the rack itself comprising the piston 11 in the cylinder. The rack 10 is returned to its initial position by a system of springs 14 when the pressure of the fluid in the cylinder 12 is reduced. The teeth of the pinion 1 are inclined to the axis of rotation to assist engagement of the clutch elements during the operative stroke. Various arrangements of springs in parallel and in series, Figs. 4 ... 9 (not shown), may replace the springs 14, the arrangement shown being found to require a comparatively short axial length. The shaft 27 carries a clutch member, having teeth 28 engageable with teeth 29 on a member fast on the crankshaft, and can be turned manually; alternatively the shaft 27 can be fast with the crankshaft and can drive a compressor. Specification 712,577, [Group XXVI], is referred to.
Patent GB-148975-A (GB)
Title: A device for maintaining the pitch of the sound constant in sound transmitting installations
IPC: G01S1/72
Filed: 1920-07-10
Abstract: 148,975. Signal Ges. Oct. 1, 1917, [Convention date]. Audible signals.-When an alternator supplies a variable number of electro-magnetic sound transmitters, the load on the machine (and consequently its speed and the pitch of the signals) is kept constant by arranging that when a transmitter is cut out of circuit an equivalent combination of resistance and inductance (or capacity) is substituted for it. The same means may serve to maintain the load on the alternator during the intervals between the elements of a Morse signal. In the arrangement shown in Fig. 2, when either of the transmitters 2 is cut out of circuit by a switch 9 its place is taken by a resistance 5 and inductance 6. In the arrangement shown in Fig. 3, the supply mains 11 can be connected by a Morse key 12 to one or other or both of the transmitters 2, according to the position of switches 15, while in its back position the key 12 connects the supply mains to the substitute circuits 5, 6.
Patent GB-1274423-A (GB)
Title: Circuit for synchronising alternating current motors
Inventor: EDER JOSEF
IPC: H02P5/52
Filed: 1971-04-19
Abstract: 1,274,423. Automatic control of speed. EUROPEAN ATOMIC ENERGY COMMUNITY. April 19, 1971 [Feb. 9, 1970], No.20899/71. Heading G3R. To synchronize the phase relationship of two or more A.C. motors, e.g. driving chopper discs in nuclear equipment, they are each energized from a D.C. source 4 via respective inverters 1, 2, 3, e.g. comprising thyristors, controlled by pulses from a common source 5 fed via respective variable delay devices 6, 7, 8, the amount of the delay being determined by the phase difference between the common pulses from 5 and pulses representing the phase of the rotor of the respective motor. Desired offset of the phase relationship between motors may be provided by fixed delay devices 15, 16 and/or any motor may be run at a submultiple of the speed of the others by providing a frequency divider 17 for the pulses from 5. The system may have proportioned and integrating control loops.
Patent GB-231418-A (GB)
Title: Improvements in means for freezing portions of liquid below the surface of the liquid, for raising sunken ships and other sunken objects
IPC: B63C7/12
Filed: 1924-09-04
Abstract: 231,418. Koeniger, W., and Kiwull, W. March 29, 1924, [Convention date]. Refrigerating, compression machines for.-In the freezing of water or other liquid below the surface level, for raising ships and other sunken objects, the use of freezing brine circulated from the refrigerating plant at the surface to the submerged cooling element is replaced by a circulation of volatile refrigerant to and from an evaporator located in the region of the liquid to be frozen. The expansion valve 4 is located near the submerged evaporator or evaporators 1, and the pipe from the condenser 2 to the valve is uninsulated, while the return pipe to the compressor 3 is preferably insulated. The condenser may be submerged so as to be cooled by the surrounding liquid, or the whole plant may be submerged, in which case the compressor is completely enclosed and may be driven bv an electric motor supplied from a source of current at the surface. The evaporator may itself constitute the freezing element, or it may cool brine in a local circuit. The Specification, as open to inspection under Sect. 91 (3) (a), comprises also the application of the system to under-surface freezing generally. This subject-matter does not appear in the Specification as accepted.
Patent GB-1015548-A (GB)
Title: Improvements in or relating to the spinning of high molecular weight polyamide filaments
Inventor: GOSDEN RAYMOND GEORGE
IPC: D01F6/60
Filed: 1963-05-25
Abstract: 1,015,548. Melt-spinning polyamides. BRITISH NYLON SPINNERS Ltd. May 4, 1964 [May 25, 1963], No. 20970/63. Heading B5B. In a process of melt-spinning high molecular weight synthetic linear polyamides into filaments wherein the filaments after solidication are treated with steam, and wound up, the filaments, after solidification, and before the steam treatment, are forwarded by forwarding means at a controlled linear speed which is equal to or differs by less than 4% from, the linear speed of winding-up. The forwarding means may be a driven godet or driven nip rolls, and the linear speed of the godet or rolls is preferably 97% to 99¥% that of winding up. The filaments are desirably gathered into a bundle by a convergence guide, except when a row of parallel filaments are spun from a straight line of orifices, when the guide may be unnecessary. The steam treating means may be a vertical open-ended pipe, circular or rectangular in cross-section, in which an atmosphere of steam is maintained. In one embodiment, filaments of polyhexamethylene adipamide are melt-spun from melter 1, in association with pumping means and a spinneret, gathered in guide 2 and passed into the nip of rolls 3, which forward the filaments at a speed a few per cent less than the wind-up speed. The filaments are passed through steamer 4 and are wound up at 5. The filaments are cooled at 6 by a blast of cold air. The wound filaments are subsequently drawn between feed and draw rolls (not shown). The provision of the forwarding means 3 eliminates elongation of the filaments between the convergence guide and wind-up, and makes possible a higher through-put of yarn without adversely affecting yarn properties.
Patent GB-1463140-A (GB)
Title: Fibre and film forming compositions
IPC: C08G63/78
Filed: 1974-05-10
Abstract: 1463140 Polyester composition containing particles TORAY INDUSTRIES Inc 10 May 1974 [10 May 1973] 20987/74 Heading C3R [Also in Division D1] A film and fibre forming composition comprises a linear polyester and from 0À02 to 1À0% by weight, based on the composition, of particles, some or all of which contain an antimony salt of an inorganic acid, the content of antimony in the particles being from 15 to 70% by weight, based on the particles. The preferred antimony salt is antimony phosphate which is prepared by adding phosphoric acid to an antimony compound during the preparation of the polyester. The examples describe preparing polyesters from (i) dimethyl terephthalate and ethylene glycol or 1,4-cyclohexone dimethanol, (ii) terephthalic acid and ethylene glycol or 1,4- butanediol and (iii) dimethyl 2,6-naphthalate and ethylene glycol, wherein during the preparation the following are added: (a) antimony trioxide and phosphoric acid, (b) triphenyl antimonate and phosphoric acid, (c) antimony acetate and phosphorous acid, (d) antimony pentaoxide and trimethyl phosphate and (e) antimony trioxide and sulphuric acid.
Patent GB-787684-A (GB)
Title: Improvements in or relating to frequency shift telegraph receivers
IPC: H04L5/08
Filed: 1955-07-20
Abstract: 787,684. Multiplex radio signalling. TELEFUNKEN GES. July 20, 1955 [Oct. 28, 1954], No. 20998/55. Class 40 (5). In a receiver for a system in which the four joint conditions of two telegraph transmitters A and B, Figs. 1 and 2, are sent by four different frequencies f1-f4 transmitted separately, a frequency discriminator produces a different D.C. output in response to the reception of a different one of the four frequencies and an amplitude limiting circuit recreates the signal A which uses the pairs of frequencies on either side of the mean for mark and space respectively. The signals A (2) are combined with signals B ( 1) in a resistance R, Fig. 3, to control the transmitter frequency, and at the receiver, Fig. 4, diode A1 or A2 fires, according to the polarity of the potential developed in discriminator D by the frequency deviation, to produce a signal corresponding to signal A and of amplitude determined by the biasing potentials on the diodes. The signal which is taken off across a cathode load in valve V1 is applied also to the cathode of valve V2 in order that it may be subtracted from the discriminator output which is connected to the grid of the valve to produce signal B. In an alternative arrangement, Fig. 5 (not shown), the subtraction is effected in the common anode resistor of a pair of valves. A further receiver, Fig. 6, comprises a bistable triggered pair K which through valves V5, V7, renders valve V6 conducting and V8 non-conducting according to whether the discriminator output is negative or positive, respectively, or vice versa, and also reproduces signal A. Battery Q creates identical conditions on the grids of valves V6 and V8, for corresponding signals, when they are conducting and signal B is developed across the common anode resistor Ra. A final arrangement, Fig. 7, is designed for the reception of signals transmitted in accordance with the system of Fig. 2, wherein the positive or negative output of the discriminator has to exceed a predetermined threshold to indicate a mark. Rectifiers G1, G2 deal with outputs of opposite polarity and the standing bias on the output valve is provided by potentiometer cd.
Patent GB-386997-A (GB)
Title: Improved manufacture of anthraquinone derivatives
IPC: C07C309/39
Filed: 1931-07-24
Abstract: Di - halogenanthraquinone mono - sulphonic acids and trihalogenanthraquinones therefrom are obtained by sulphonating in absence of catalysts, a homonuclear di-halogenanthraquinone in which one halogen atom occupies the 1-position, to give mono-sulphonic acids, which are separated and treated with halogen to give trihalogenanthraquinones.  According to examples, 1 : 2, 1 : 3, and 1 : 4 dichloranthraquinones are suphonated in fuming sulphuric acid and the products may be treated with halogen to replace the sulphonic groups in known manner.  Specification 373,127 is referred to.  The Provisional Specification refers also to the formation of disulphonic acids and is not limited to dihalogen compounds with a halogen atom in the 1-position.  In examples 1 : 5 - dichloroanthraquinone is sulphonated with and without a mercury catalyst to yield respectively the 2- and 4-sulphonates and the 2 : 8-disulphonate and the 4-sulphonate and 4 : 8-disulphonate.  Sulphonation of 1 : 8-dichloroanthraquinone yielded the 4-sulphonate and the 4 : 5-disulphonate the amount of the latter being increased by adding a mercury catalyst. Chlorination gives the corresponding tri- and tetrachloroanthraquinones.
Patent GB-1506402-A (GB)
Title: Electrochemical cell
IPC: C25B9/17
Filed: 1975-05-19
Abstract: 1506402 Woven and knitted fabrics MARUBISHI YUKA KOGYO KK and K NISHIZAWA 19 May 1975 [24 May 1974 19 Oct 1974] 21167/75 Heading DIK [Also in Division C7] A non-conductive woven or knitted fabric has included therein, e.g. during weaving or knitting or by sewing, adhesion or coating, a plurality of parallel conductive threads or wires rendering the fabric useful as an electrode in electrolysis. The fabric may comprise polyester, PVC, cotton or glass with conductors of graphitised carbon, or Pt or steel wires. Two kinds of conductor may be alternated in the fabric for use as anode and cathode. The conductive elements are interspersed with the non-conductive threads.
Patent GB-866188-A (GB)
Title: Improvements in or relating to a portable electric apparatus of small dimensions, such as a pocket lamp, a razor, a fan or the like
IPC: F21L4/00
Filed: 1957-07-04
Abstract: 866,188. Supporting portable electric lamps. LAURENT, J. J. July 4, 1957 [July 11, 1956; May 6, 1957; May 7, 1957], No. 21205/57. Class 75(3). [Also in Groups XXXV and XXXVI] .A portable electric apparatus, such as a pocket lamp, dry shaver, fan, &c., consists of a housing formed of two parts, one of which contains an accumulator and the other the device to be energised thereby together with a controlling switch, a recharging device being housed in the first part and permanently connected to the accumulator, two pairs of electrical connecting means being provided on the surface of the first part for connection with corresponding electrical connection means in the second part, one pair being adapted to connect the first part to any suitable external 'source of supply when the second part is removed and the other pair providing an electric connection to the electric appliance when the two parts are fitted together. In the form shown, applied to a pocket lamp, the lamp portion 12 has a lamp 29 with reflector 30 and protective cover 31, one terminal of the lamp, being connected to a-contact pin 32 and the other to a contact pin 34 through a switch 37. The pins 32, 34 engage in sockets 15, 16 on the portion containing the accumulator and connected to the terminals thereof. The accumulator portion also carries, contact pins 23, 24 for the recharging circuit, which engage in blind sockets 35, 36 in the lamp portion. The recharging circuit of the accumulator 14, Fig. 4, consists of rectifier cells 17, 18, 19, 20, a condenser 25 and resistance 26. A magnet 42, Fig. 8, and a magnetic plate 43 may be mounted one on the lamp holding portion and one on the accumulator portion by which the lamp when assembled may be held on a metallic surface, e.g. the body of a motor car, and by which the parts may be held in contact with one another when they are not plugged into one another. The cover 31 consists of a threaded ring and a separate lens element so that the latter may be replaced by a lens element of a different colour if desired.
Patent GB-579799-A (GB)
Title: Improvements in or relating to annular sealing means for pistons and the like
IPC: F16J10/02
Filed: 1943-06-30
Abstract: 579,799. Piston packing. BENDIX AVIATION CORPORATION. June 30, 1943, No. 21282/45. Convention date, Aug. 6, 1942. Divided out of 579,172, [Group XXXIV]. [Class 122 (i)] An annular piston 118 for actuating disc brakes is sealed by a ring of substantially square cross section having a shallow groove 133 in one face. The contacting surfaces of the piston and seal may be curved as at 134.
Patent GB-812822-A (GB)
Title: Apparatus for treating compressed fuel briquettes and materials of similar character
IPC: C10L5/28
Filed: 1955-07-25
Abstract: 812,822. Tunnel ovens for treating fuel agglomerates. HOUILLERES DU BASSIN DU NORD ET DU PAS-DE-CALAIS. July 25, 1955 [July 24, 1954], No. 21435/55. Addition to 716,537 and 722,495. Classes 51 (1) and 51 (2). In a tunnel oven for the treating of fue agglomerates by the three-stage process disclosed in the parent Specification in which the charge is conveyed through a plurality of zones each having inlets and outlets for circulating gases through the agglomerates, co-operating sealing devices on the outer wall surfaces of the trucks or a conveyer and the inner wall surfaces of the tunnel confine the circulating gases to their respective circuits. Charge trucks 15 with a perforated base 16 have sand seals 20 near the wheels and lower trough-shaped, flexible steel seals 32 packed with glass wool or other insulating material engaging shoulders on the truck base plates 17. Side flanges 36 of the truck base 16 slide over flexible seatings packed with glass wool &c. and a top seal comprises truck flanges 37 sliding on an S-shaped element 38 disposed in a trough 39 packed with glass wool &c. A modified upper and lower side seal, Fig. 5 (not shown), comprises spring-pressed channel members, engaging the truck sides, and disposed in recesses in the tunnel walls packed with glass wool &c. The various zones may be isolated by pivoted plates 42 depending from a roof section 41 and engaging a labyrinth seal formed between two trucks. Vertically extending resilient seals 46 on the truck ends engage the tunnel wall and define the lateral extent of a treatment zone. The supply of heating gases and air through sectional side flues 4 and 5 corresponding with each zone, and the circulation of the gases in each zone by a fan 25 is similar to that disclosed in the parent Specification. Some of the exhaust gases may be re-cycled to the external combustion chamber, Fig. 8 (not shown). An additional combustion chamber directly feeding one or more of the zones may be incorporated in the heating system, the spent gases being recycled to both combustion chambers. Passage of air and gases to and from the inlet end of the oven is prevented by providing an extra zone, Fig. 6, at this end, having a blower 54 controlled by a valve 55 and an exhaust fan 50 controlled by a valve 51, the valves and/or the fan motors being controlled from differential gauges 52 and 56 recording pressure differences between adjacent zones. A similar extra zone is disposed at the exit end of the oven, Fig. 7 (not shown).
Patent GB-891881-A (GB)
Title: Improvements in or relating to dispensing systems for beer or the like
IPC: F25D31/00
Filed: 1957-07-08
Abstract: 891,881. Dispensing liquids. OGILVY, T. A. July 10, 1958 [July 8, 1957], No. 21494/57. Class 116. A beer dispensing pipe 7 is provided with a by-pass 3 passing through a cooling chamber 1 arranged closely adjacent the dispensing point, and cocks 9, 6, are operable to cause some or all of the beer to pass through the cooling chamber. As shown chamber 1 is an icebox with a drain tap 8.
Patent GB-855244-A (GB)
Title: A substituted tetrahydro-1:3-oxazine-2:4-dione
Inventor: TESTA EMILIO
IPC: C07D265/06
Filed: 1958-09-24
Abstract: The invention comprises 5 : 5-diethyl-tetrahydro-1 : 3-oxazine-2 : 4-dione and the preparation thereof by bubbling hydrogen chloride into a solution of 1 mol of alpha : alpha-diethyl-betahydroxypropionic acid and an excess over 1 mol (and preferably less than 2 mols) of an alkali metal cyanate in a water immiscible solvent, e.g. chloroform, at 0 to 5 DEG C., refluxing the obtained alpha : alpha - diethyl - beta - carbamoyloxypropionic acid with excess thionyl chloride, evaporating the excess thionyl chloride, contacting the residual chloride for 30 to 60 minutes with anhydrous pyridine at a temperature not exceeding 45 DEG C., pouring the mixture into ice water, acidifying with hydrochloric acid and recrystallising the precipitated product.  An example is given. Alpha : alpha-diethyl-beta-hydroxy-propionic acid is prepared by a process analogous to that described in Specification 838,725 for the preparation of alpha-hydroxy-methyl-alphaphenyl-butyric acid. Specification 773,011 also is referred to.ALSO:Pharmaceutical compositions for intravenous, topical or oral administration contain as essential active ingredient 5 : 5-diethyl-tetrahydro-1 : 3-oxazine-2 : 4-dione.  Ampoules, drops and tablets are referred to.
Patent GB-1480552-A (GB)
Title: Tufting apparatus
IPC: D05C15/00
Filed: 1975-05-20
Abstract: 1480552 Tufting machine, yarn clamping A N SPANEL 20 May 1975 [29 May 1974] 21512/75 Heading DIG A tufting machine is provided with clamp means 130 which are moved by means (52 Fig. 1 not shown) to hold a cut length of yarn received by the tuft forming needles 14 preparatory to the tuft being formed in the backing material L, the clamp means including resilient means to achieve a resilient clamping of the yarn against the material. The yarn clamping means 130 comprises a guide structure 72 reciprocated by a lifter 80, 82 and mounting clamps 66 urged along guide slots 70 towards the severed tuft lengths inserted in the aligned eyes 60 of the needle 14, by compression springs 78 each clamp passing between a needle pair. In other embodiments (Figs. 5, 6 not shown) leaf springs (110, 132) are provided which act on a block of clamps (114, 124) or on individual clamps (134). Alternatively a single block of rubber or the like (150, Fig. 7 not shown) may provide the spring for a number of clamps, or single clamping member (170 Fig. 8 not shown) which may extend across the width of the machine is provided with a resilient face strip at its lower, yarn contacting edge. In a final embodiment (Fig. 4 not shown) clamps (90) are provided at their upper ends with pistons (92) subjected to air pressure from above, the air acting both as a resilient member and, by varying the pressure positively and negatively, as the clamp reciprocating means.
Patent GB-970967-A (GB)
Title: Improvements in or relating to polychloral film and sheet products
IPC: B29C48/08
Filed: 1963-05-29
Abstract: Chloral is polymerized directly to a film or sheet of high molecular weight polychloral by applying to a solid substrate within a reaction chamber a mixture of (1) a polymerizable material including liquid chloral monomer and (2) a polymerization catalyst or forming such mixture upon the solid substrate, maintaining the mixture at polymerization temperature within the reaction chamber while supported upon the solid substrate and removing the polychloral product. The liquid chloral and polymerization catalyst may be mixed in another reaction chamber, partially polymerized and passed to the substrate in the first reaction chamber. The process may be continuous.  The preferred catalyst is 2-6-dimethoxy phenyl-lithium admixed with diethyl zinc. Apparatus for carrying out the process is described.