baber/WOPTO huggingface dataset:
Patent GB-1395246-A (GB)
Title: Method of and apparatus for sensing the position of a body
IPC: G01S1/70
Filed: 1972-10-17
Abstract: 1395246 Optical position finding SHORT BROS & HARLAND Ltd 8 Oct 1973 [17 Oct 1972] 47835/72 Heading H4D The position of a body, such as a missile, relative to the cross-section of a beam of electromagnetic waves, e.g. laser light, arranged in a sight line, is sensed by an apparatus including a sensor located on the missile, the beam being so modulated that the sensor produces sequentially in response to the modulated beam, 1st and 2nd signals corresponding to 1st and 2nd co-ordinates of the body within the beam crosssection. The beam 2, Fig. 1, from laser 1 is collimated and partly diffused in housing 6 and then passes through fixed circular aperture 5. The beam is directed at the body by main optical system 9. The beam is modulated by circular revolving reticle 7, which may be of glass made opaque by, e.g. a chrome coating, and has (Fig. 2) transparent windows 10, 11 for beam modulation. Pulsing pattern 21, comprising transparent slit regions 21a is arranged on the periphery, and slit 23 is also arranged on the periphery so that as the reticle rotates the laser is pulsed by laser trigger 22 consisting of source 22a and sensor 22b which triggers a solid state laser powerswitch, when a transparent region passes trigger 22. The radially outer edge 13 of modulating window 13 gradually sweeps across fixed aperture 5 thereby increasing the area 27 of the beam which reaches the target. At a certain point in the sweep, the sensor on the missile begins to receive beam pulses, and counts them, until the trailing edge 16 of window 10 passes in front of the aperture. The missile system then relates the number of pulses received to its position on pitch co-ordinate axis 25 and a control system operates to adjust the trajectory of the missile. Similarly the missile's position on the yaw axis 26 is measured from the time when the last of the pulse train is received, i.e. when the beam is obscured by trailing edge 16 of window 10, to instant when the reference pulse is received, which reference pulse is transmitted when the whole of aperture 5 is opened by reference window 11, and pulsing portion 23 triggers the device 22. The minimum number of pulses transmitted through window 10 must be 10 or more, whereas the reference pulse may consist only of one or two pulses. Several missiles may be controlled simultaneously. The reticle may alternatively be constituted by radial spokes, or be a closed film loop with a wedge shaped window, or may, instead of blocking the beam, alter its spectrum. The reference may alternatively be transmitted separately.
Patent GB-1373357-A (GB)
Title: Gas-removal apparatus
IPC: F01P11/02
Filed: 1971-10-15
Abstract: 1373357 Degassing cooling liquid AUTOMOBILES PEUGOT and REGIE NATIONALE DES USINES RENAULT 15 Oct 1971 [30 Oct 1970] 47958/71 Heading B1M A gas-removal apparatus for use in removing gas from a cooling liquid of the cooling circuit of a motor vehicle, the apparatus comprises a mass of material 8 extending across a box 1 so that liquid passing from inlet 5 to outlet 6 must pass through mass 8, the mass 8 having a tridimentional reticulated structure with two free opposed faces which affords throughout its mass a network of intercommunicating cavities which form sinuous passages between the free faces, the cavities representing in excess of 90% of the bulk volume of the mass and each cavity having average dimensions of about 2-3 mm. The mass 8 may comprise a synthetic polyurethane polyester foam, "knitted" synthetic filament as used for scouring plates and saucepans, or a material constituted by synthetic fibres or filaments coated with a thermosetting resin binder distributed without a preferential orientation but in a roughly constant number by volume, the fibres being interconnected at their points of contact by the binder.
Patent GB-988917-A (GB)
Title: Improvements in or relating to the manufacture of polyurethanes
Inventor: WOOD DENNIS JOHN CECIL
IPC: C08G18/48
Filed: 1962-12-19
Abstract: A solution of a polyurethane containing isocyanate groups in a fluorinated hydrocarbon having a boiling point not exceeding 75 DEG C. is prepared by reacting a stoichiometric excess of an organic polyisocyanate with a polyether which contains at least 3 hydroxyl groups in the presence of a fluorinated hydrocarbon.  In examples (1) oxypropylated trimethylol propane of M.W 310 (2) oxypropylated tolylene diamines of MW 450 and (3) oxypropylated sorbitol of MW 760 are reacted with excess tolylene diisocyanate in the presence of trichlorofluoromethane. Specifications 892,557 and 926,414 are referred to.ALSO:A solution of a polyurethane prepolymer in a fluorinated hydrocarbon having a boiling point not exceeding 75 DEG C. is prepared by reacting a stoichiometric excess of an organic polyisocyanate with a polyether which contains at least three hydroxyl groups in the presence of the fluorinated hydrocarbon. Polyethers may be prepared by the polymerization of an alkylene oxide with a compound having at least 3 active hydrogen atoms per molecule, e.g. ammonia, hydrazine, glycerol, trimethylolpropane, triethanolamine, pentacrythritol, sorbitol, sucrose, phloroglucinol, ethanolamine, ethylene diamine, tolylene diamine, diaminodiphenylmethane and phenol-formaldehyde condensates. The alkylene oxide may be ethylene oxide, 1:2-propylene oxide, 1:2-butylene oxide, 2:3-butylene oxide and epichlorohydrin. Cyclic oxides, e.g. glycidol and 3-hydroxymethyloxacyclobutane may be used. Conventional isocyanates are listed including chlorophenylene 2:4-diisocyanate.  The polyurethane prepolymer compositions may be reacted with polyethers containing at least 3 hydroxyl groups and optionally water or more fluorinated hydrocarbon to form polyurethane foams.  In Examples (1) oxypropylated trimethylol propane is reacted with excess tolylene diisocyanate in trichlorofluoromethane; (2) and (3) oxypropylated tolylene diamines and oxypropylated sorbitol are reacted with tolylene diisocyanate.  Specifications 892,557 and 926,414 are referred to.
Patent GB-1187499-A (GB)
Title: Horizontal Deflection Circuits for Cathode Ray Tubes
Inventor: GELLER WILLIAM
IPC: H04N3/18
Filed: 1967-10-23
Abstract: 1,187,499. Transistor sawtooth circuits. GENERAL TELEPHONE & ELECTRONICS LABORATORIES Inc. 23 Oct., 1967 [1 Nov., 1966], No. 48117/67. Heading H3T. [Also in Division H2] A line deflection output stage for a television receiver utilizes a transistor or gate-controlled switch 46 which is turned on during each sweep by a switching device 11 and turned off so as to terminate each sweep by a switching device 12 which connects the control electrode of switching device 46 to a reverse biasing potential -V2 exceeding the control circuit breakdown voltage of device 46, a diode 47 being included in both the control and main circuits so as to prevent flow of reverse current. As described, the circuit is controlled by a square wave oscillator 10 supplying anti-phased outputs from windings 41 and 42, the former turning on transistor 43 which, in turn, turns on the output stage 46 giving a linear rise of current in deflecting coils 50. Each sweep is terminated by the negative half cycle of the square wave from winding 42 which turns on thyristor 44, thus providing reverse breakdown of the control circuit 46 giving rapid removal of charge carriers and hence rapid turn off. The energy in deflection coils 50 now charges the flyback capacitor 18, damping diode 48 becoming conductive after one quarter cycle and remaining conductive during the first half of the next sweep until device 46 is again turned on. An E.H.T. transformer 52 and rectifier 53 are provided.
Patent GB-995813-A (GB)
Title: Cyclic dicarbonate from bis-hydroxyphenyl-diisopropyl benzene
IPC: C08G64/06
Filed: 1963-12-06
Abstract: The invention comprises cyclo-bis-4,41-(a , a 1-diphenyl - a ,a ,a 1,a 1 - tetramethyl - xylyl) dicarbonate of the formula <FORM:0995813/C2/1> The dicarbonate may be made by contacting phosgene with an emulsion of water and an inert substantially water-insoluble organic solvent, said emulsion having a pH of at least 9 and containing a ,a 1-bis-(p-hydroxyphenyl)1,4-di-isopropyl benzene and a catalyst of the formula [AR1R2R3R4]+X-wherein A is nitrogen, arsenic or phosphorus; R1, R2, R3 and R4, which can be the same o different, are each an alkyl, alkenyl, aryl or aralkyl radical; and X is hydroxy or halogen, the a ,a 1 - bis - (p - hydroxylphenyl)1,4 - diisopropylbenzene being present in the emulsion in an amount of 0.1 to 5% by weight of the aqueous phase of the emulsion and the phosgene being passed continuously into the emulsion at a rate such that the weight ratio per minute of phosgene : emulsion is not more than 10-3 : 1.  The total amount of phosgene should be about 0.5 mol. to 1.25 mol. per mol a ,a 1-bis (p - hydroxyphenyl) 1,4 - di - isopropyl-benzene. Emulsification of the aqueous and organic phases may be accomplished by agitation and by addition of emulsifying agents, preferably an anionic emulsifier such as stearyldimethylbenzylammonium chloride.  Reaction temperatures vary from 10 DEG  to 60 DEG  C.  Detailed examples are given.ALSO:a ,a 1 - Bis - (p - hydroxyphenyl) - 1,4 - di - isopropy benzene polycarbonate resins having recurring units of the formula <FORM:0995813/C3/1> are made by heating cyclo-bis-4,41-(a ,a 1-diphenyl) -a ,a ,a 1,a 1 - tetramethyl - xylylyl) dicarbonate at temperatures of 325 DEG  to 375 DEG  C.  The reaction is preferably carried out under vacuum, pressures of 0.01-200 mm. Hg being suitable. Alternatively, the linear polycarbonate may be made by mixing the dicarbonate with an anionic catalyst in an inert solvent and heating to at least 200 DEG  C. Suitable anionic catalysts are butyl lithium, alkylmagnesium and aryl magnesium halides and alkali metal hydroxides.  Detailed examples are given.
Patent GB-983050-A (GB)
Title: Tread brake arrangement
Inventor: TACK CARL EDWARD
IPC: B61G9/14
Filed: 1963-12-10
Abstract: 983,050. Brake actuating mechanisms. AMSTED INDUSTRIES Inc. Dec. 10, 1963, No. 48706/63. Heading F2E. In a railway car having an under frame 9 mounted on a spring plankless truck which has side frames 4 which are supported at their ends upon wheel and axle assemblies 5 and 6 and are interconnected by a bolster 8 pivoted to the underframe at 13, a tread-brake arrangement comprises two truss-type brake beams 17, 18, 19, slidably supported at their ends 24 on the side frames at 26 between the wheel assemblies which can be engaged by shoes 54 on the ends of the beams, a live and a dead brake lever, 41 and 43, pivoted at 42 and 40 on the medial portions 19 of the beams, a rod 44 interconnecting the lower ends of the brake levers; an anchor rod 51 connecting the upper end of the dead lever 43 to the underframe at 52, and a pull-rod 38 connecting the upper end of the live lever 41 to a power cylinder 27 which actuates the brake. The cylinder 27 operates the pull-rod 38 by way of a lever 33 which is pivoted to the underframe at 34. The connecting-rod 44 is provided with several apertures 46 to receive the pins 47 and 48 so that the distance between the brake beams can be adjusted.
Patent GB-1528049-A (GB)
Title: Lifting and conveying apparatus
IPC: B63C3/12
Filed: 1975-11-27
Abstract: 1528049 Elevating and transporting devices HERBERT MORRIS Ltd 19 Nov 1976 [27 Nov 1975] 48825/75 Heading B8L [Also in Division B7] A device for transporting a load between stations during fabrication of a structure, comprises a load engaging beam 16 mounted on one or a plurality of bogie carriages 11 movable along rails 15, the carriages incorporating elevating jacks 17 and guides 19 facilitating vertical movement of the boom. The jacks 17 may be hydraulic or screw-operated and the bogie wheels 12 are electrically or hydraulically driven. Further specialist jacks may be provided on the carriages, either fixed or movable relative thereto.
Patent GB-1156144-A (GB)
Title: End Jointing of Timber and the like
Inventor: CARRUTHERS JOSEPH FORSYTHE SCO
IPC: B27M3/00
Filed: 1965-11-22
Abstract: 1,156,144. Jointing timber. NATIONAL RESEARCH DEVELOPMENT CORP. 28 Dec., 1966 [22 Nov., 1965], No. 49527/65. Addition to 1,049,757. Heading A4H. [Also in Division B5] The method of finger jointing timber of the parent Specification 1,049,757 is modified in that the ends of the timber are not preheated and the die is not cooled. The die has lateral extensions (4) which prevent splitting of the timber.
Patent GB-1218267-A (GB)
Title: Improved means for securing a member on to a spindle or shaft
Inventor: FILLMORE LEONARD WALTER CHARLE
IPC: F16D1/08
Filed: 1968-10-18
Abstract: 1,218,267. Securing members on spindles. JACKSON BROS. (LONDON) Ltd. 20 Oct., 1969 [18 Oct., 1968], No. 49615/68. Heading F2U. A boss 1, which may carry a knob, pulley or sprocket 5, is secured on the end of a spindle 4 by a wedge-ended longitudinal key 2 moved into and out of engagement by a slotted screwed plug 3 in the end of the boss 1. The edges of the key engage guide slots (8a) in the boss 1 and the interengaging wedge surfaces 9 force the inner surface of key 2 against a flat on spindle 4. An arcuate recess 16 in key 2 is engaged by a circular boss 15 integral with plug 3. In a second form, Fig. 7, key 2 has an integral lug 17 which engages the screw-plug through a coiled compression spring 18.
Patent GB-1402278-A (GB)
Title: Process and apparatus for fermenting sugar-containing liquids
IPC: C12M1/12
Filed: 1972-10-30
Abstract: 1402278 Filtering fermented liquor BREW SYSTEMS GmbH 30 Oct 1972 49960/72 Heading B1D [Also in Division C6] Sugar-containing liquid e.g. for the domestic production of beer or wine, is fermented by forcing it, under the pressure of the carbon dioxide evolved, through a layer 6 including yeast cells supported on a fine-pored filter 4 in the chamber 1. Carbon dioxide released by the throttle valve 3 at say, I or 2 atmospheres pressure may be used for carbonating the fermented liquid in tank 7. Beer malt employed may have been reconstituted by diluting thickened malt with water.
Patent GB-1088999-A (GB)
Title: Improvements in underframes for coal cutting machines
Inventor: HEATH DAVID
IPC: E21C35/06
Filed: 1964-12-08
Abstract: 1,088,999. Coal cutter underframes. EDIBRAC Ltd. Dec. 7, 1965 [Dec. 8, 1964], No. 49971/64. Addition to 1,013,672. Heading E1F. The control means for the jacks of the mining machine underframe of Specification 1,013,672 are mounted on the underframe.
Patent GB-1455015-A (GB)
Title: Pneumatic tyre
IPC: B60C11/12
Filed: 1973-10-31
Abstract: 1455015 Tyre tread patterns UNIROYAL AG 31 Oct 1973 [2 Nov 1972] 50580/73 Heading B7C A pneumatic tyre comprises a plurality of tread sections extending in succession circumferentially of the tyre with any one section being positioned between two adjacent sections which differ in tread pattern from one another and from the one section therebetween. The tread patterns are in part defined by endless, laterally spaced circumferential grooves and, in some but not all of the sections, by lateral grooves extending across the tread from one circum. ferential groove to another. The sections may be of identical or differing circumferential lengths. Figs. 1 and 6 show respectively three and six tread sections A, B, C and Ai, Bi, Ci, Aj, Bj, Cj.
Patent GB-1415528-A (GB)
Title: 2-thiocarbonylamino acetamidocephalosporanic acid compounds
IPC: A23K20/195
Filed: 1972-11-02
Abstract: 1415528 Antibacterial compositions E R SQUIBB & SONS Inc 2 Nov 1972 [4 Nov 1971] 50621/72 Headings A5B and A5E [Also in Division C2] 2-(Thiocarbonylamino) acetamido cephalosporanic acid compounds of the formula: wherein R is hydrogen; C 1-8  alkyl, aralkyl, or a salt-forming ion; R 1  is hydrogen, C 1-8  alkyl, C 1-8  alkenyl, cyclo C 3-7  alkyl, unsaturated cyclo C 3-7  alkyl, monocyclic carbocyclic aryl, monocyclic carbocyclic aryl C 1-8  alkyl or a monocyclic heterocyclic containing 5 or 6 members in the ring consisting of carbon, oxygen, nitrogen and sulphur, no more than two being other than carbon; R 2  is C 1-8  alkyl C 1-8  alkoxy, C 1-8  alkyl, C 1-8  alkylthio, C 1-8  alkyl, monocyclic carbocyclic aryl, monocyclic carbocyclic aryl C 1-8  alkyl or heterocyclic as defined above, R 3  is C 1-8  alkyl, monocyclic carbocyclic aryl or monocyclic carbocyclic aryl-C 1-8  alkyl and X is hydrogen, hydroxy, C 1-8  alkanoyloxy, aroyloxy, aralkanoyloxy, the radical of a nitrogen base quaternary ammonium radical or together X and R represent a bond linking carbon and oxygen in a lactone ring, have a broad spectrum of antibacterial activity and may be used in cleaning or disinfecting' compositions admixed with, suspended or dissolved in conventional inert dry or aqueous carriers for application by washing or spraying; pharmaceutical compositions for oral or parenteral administration in the form of tablets, capsules, elixirs or sterile aqueous injectable preparations; and in animal feeds as nutritional supplements.
Patent GB-1058990-A (GB)
Title: Improvements in or relating to apparatus for the washing of glasses and the like
Inventor: BROWN JAMES EDWARD
IPC: A47L15/00
Filed: 1964-12-12
Abstract: 1,058,990. Washing glasses. VALCAST PRODUCTS Ltd. Dec. 8, 1965 [Dec. 12, 1964], No. 50689/64. Heading B8T. A drinking glass 2 is rinsed, after washing in a sink having rubber vanes on rotary brushes, not shown, by an internal spray nozzle 3 and an external spray ring 4 while inverted on a platform 12, the weight of the glass depressing the platform and its spring-loaded integral sleeve 16, the end 17 of which engages a lever 10 which operates a micro-switch 11 opening a valve 8 to allow water to be fed to the sprays. Hot water may be fed direct, or a heater 7, governed by the switch 11, may be incorporated. The depression of the sleeve 16 also operates a valve 24 by means of a lever 18, to dispense a quantity of detergent from an outlet 23. The sprayed water which drains away to the sink through a hole 31 in a shroud 1 surrounding the sprays mixes with the detergent and maintains the washing water in the sink at a constant temperature and composition. The apparatus may be mounted by sealing rings 25, 26 in holes in a draining board 30, or may be contained in a box having a number of suction pads on its lower side. Rinsing may be terminated by removal of the glass or by an electrical timing device.
Patent GB-1484175-A (GB)
Title: Finger mountable guitar string contact device
IPC: G10D3/00
Filed: 1974-11-29
Abstract: 1484175 Guitar string contacts L POGAN 29 Nov 1974 [22 March 1974] 51723/74 Heading G5J A guitar string contact device 20 is generally in the form of a ring allowing the main contact means 22 to be located at any position around the outside of a finger. There may be an angle between the finger insert 24 and contact axis of about 80 degrees (Fig. 5, not shown), and the longitudinal length of the contact surface varies as the device is rotated on the finger.
Patent GB-517925-A (GB)
Abstract: 517,925. Ticket-issuing machines. BLACK, H. D. Aug. 10, 1938, No. 23537. [Class 106 (iii)] In a ticket issuing machine a ticket is provided during issue with a line or series of marks extending longitudinally along the ticket, the position of the line or the like with respect to the longitudinal edges of the ticket serving to indicate information concerning the ticket. The ticket strip 12 is driven by known mechanism under a guide 17 and over this guide a frame 22 carrying a printing wheel on an axle 25 is pivotally arranged. This wheel may be moved transversely of the ticket strip by a nut 28 operated by a screw 30. Each ticket carries transverse divisions and by adjustment of a handle 33 the screw 30 will shift the printing wheel and cause it to mark the particular division corresponding to the kind of ticket required. If it is only desired to mark the ticket according to time the handle 33 can be dispensed with and the screw 30 driven by clock mechanism. In this case a shaft 57 turning at constant speed operates an escapement 53 to release successive teeth of a rack 51 at regular intervals. Member 48 bearing rack 51 also bears a rack 50 which drives screw 30 through bevel and shaft gearing 46. '
Patent GB-1244722-A (GB)
Title: Platform element
Inventor: HAMILTON ANDREW
IPC: E04G1/15
Filed: 1967-11-15
Abstract: 1,244,722. Forms of wood. A. HAMILTON. 15 Nov., 1968 [15 Nov., 1967], No. 51929/67. Heading B5L. [Also in Divisions D1 and E1] A platform element for catwalks, painters' cradles, scaffold planks or the like consists of a series of parallel wooden battens 10 separated by spacer elements 11 or 12 interposed in rows transverse to the length of the battens, there being one such transverse row adjacent each end of the platform element and at least one intermediate row, at least one rigid metal rod 14 being passed through the battens and spacer elements at each transverse row, the ends of the rods 14 being suitably secured, for example by riveting at 20. A reinforcing metal band may extend around its periphery. The wood may be impregnated with weather, insect or fungi-resistant compositions.
Patent GB-1193980-A (GB)
Title: High Energy Loss Fluid Control
IPC: F16K47/04
Filed: 1967-11-15
Abstract: 1,193,980. Valves. R. E. SELF. 15 Nov., 1967, No. 52009/67. Heading F2V. [Also in Division G3]  A throttling valve is provided with a fluid resistor which subdivides the main flow into a plurality of small bore passages of greater length than the direct distance between the inlet and outlet of the resistor, and has means for varying the number of operative passages. Piston 14 (Fig. 1) co-operating with annular seat 19 is provided with tubes 22 the ends 23 of which terminate on the cylindrical surface of the piston. In a modification (Fig. 3) a plain piston 28 co-operates with a stack of washers 38 each provided with sinuous passages on its top horizontal surface (Figs. 4 and 5, not shown).
Patent GB-1072409-A (GB)
Title: Improvements in or relating to wheels
Inventor: WHEELER BARRIE JOHN
IPC: B60B27/00
Filed: 1964-12-24
Abstract: 1,072,409. Vehicle wheels. SHELFORD ENGINEERING CO. Ltd. Oct. 26, 1965 [Dec. 24, 1964], No. 52504/64. Heading B7C. A wheel comprises an integrally moulded or cast plastics load-bearing web 17 and hub flange 18 in which two sets of races 24, 25 are retained by a split metal tube 27 turned back at 29 about races 25. The web 17 has strengthening ribs 19 and a groove 30 for snap engagement with a rib 33 of a hub cap 31.
Patent GB-1423269-A (GB)
Title: Method of rendering surfaces nonfogging and resulting articles
IPC: C08G18/62
Filed: 1973-11-16
Abstract: 1423269 Urethane/acrylic block copolymer coating ARTHUR D LITTLE Inc 16 Nov 1973 [24 Nov 1972] 53432/73 Heading B2E [Also in Divisions B5 and C3] The surface of a substrate has a transparent coating adhered thereto, comprising a block copolymer of alternating polyurethane and hydrophilic polyacrylic blocks. The coating may be formed by applying a solution of the copolymer by dipping, spraying, painting, knife-coating, or printing. Suitable substrates are vehicle windows, glass and plastics optical lenses, mirrors and transparent packaging films. Suitable acrylic monomers for use in the block copolymer are hydroxy alkyl acrylates and methacrylates, diethylene glycol (meth)acrylate, dipropylene glycol methacrylate, (meth)acrylamide, and hydroxymethyl (meth)acrylamide. Up to 10% of acrylic monomer weight of an ethylenically unsaturated acid may be present in the acrylic block, such acid being, for example, acrylic, cinnamic, crotonic, methacrylic, itaconic, aconitic, maleic, fumaric, measaconic and citraconic acid. The polyurethane block is preferably made from a polyether or polyester and a polyisocyanate, and a chain extender may be used when reacting the urethane with acrylic block. A suitable polyether is polyethylene glycol and suitable polyesters are polyethylene propylene adipate and polybutylene adipate. The coating may be crosslinked.