baber/WOPTO huggingface dataset:
Patent GB-1112927-A (GB)
Title: Laser beam direction apparatus
IPC: H01S3/06
Filed: 1965-09-27
Abstract: 1,112,927. Lasers. INTERNATIONAL BUSINESS MACHINES CORPORATION. 27 Sept., 1965 [25 Nov.. 1964], No. 40967/65. Heading H1C. In a laser including an active element having at least one surface arranged to reflect internally of the element light incident on the surface at an angle within a range of angles of incidence, means are provided adjacent to the surface or to at least one of the surfaces for frustrating the internal reflection of the laser light striking the surface internally at angles within a portion of the range to limit emission to that light which strikes the surface at angles within the remainder of the range. A ruby or semi-conductor junction laser crystal 105 is positioned in a laser cavity 104 the crystal being formed with a crosssection in the shape of a 90-degree circular sector. Light rays striking the surfaces 107, 108 at angles greater than the critical angle are internally reflected and due to the lens action of surface 109 are converged to points such as 115, 125 on mirror 117 where they are reflected back to set up a standing wave. When the laser 105 is optically or electrically pumped by sources 129 light is emitted along all paths reflected by the surfaces 107, 108. In order to rotate the emission path about point 110 or spread the output beam the critical angles of incidence at the surfaces 107, 108 are varied by frustrating the internal reflection of light causing it to be transmitted through the surface 107, 108 instead of being internally reflected. In the embodiment shown this is achieved by positioning a pair of transparent members 133, 134 having a refractive index greater than that of the laser element adjacent surfaces 107, 108. Gaps 136, 137 are adjusted by a pair of piezoelectric crystals 140, 141 so that light striking surfaces 107, 108 at certain angles of incidence tunnels through the gaps 136, 137 thereby frustrating the internal reflection of this light. A control device 145 provides signals to crystals 140, 141 which are 180 degrees out of phase so that the point of emission of laser 105 is rotated cyclically about point 110. One of the members 133, 134 may be eliminated if the width of the area of emission is to be changed rather than the direction of a narrow beam. Members 133, 134 may be composed of a material which exhibits a change in index of refraction when placed in a magnetic or electric field instead of employing the piezo-electric crystals. The surface 101 may be composed of a series of flat surfaces and mirror 117 formed with corresponding parallel flat surfaces. In the arrangement of Fig. 1 (not shown) the laser element is formed with a cross-section in the shape of a semi-circle and may be a hemisphere or a half-section of a cylinder. A semi-circular mirror is employed to form a resonant cavity for light internally reflected. As in the arrangement of Fig. 2 the critical angle is altered for certain rays so that emission is limited to an area determined by the critical angle.
Patent GB-1476238-A (GB)
Title: Intumescent coating compositions
IPC: C08K9/10
Filed: 1975-09-08
Abstract: 1476238 Intumescent fire-resistant coating compositions MAGNESIUM ELEKTRON Ltd 8 Sept 1975 [20 Sept 1974] 41062/74 Heading C3B An intumescent fire-resistant coating-composition comprises foaming agent(s) (A) encapsulated by a substance (B) impervious to water. (A) may be melamine phosphate. (B) may be an epoxy polymer. The capsules (C) may be of diameter 1-500 Ám. The composition may also comprise a "carbonific" material (D) to form foam-cell walls on heating; (D) may be contained in (C), or may be (B). Capsules (C) may be mixed with a conventional coating composition, e.g. a paint, or the surfaces to be protected may be treated with an adhesive, followed by coating with (C) or a composition containing (C). The coating composition or capsules (C) may contain glass, metal, or carbon fibres. Capsules (C) may be made by dispersing (A) in a solution of epoxy resin in an organic solvent, e.g. diacetone alcohol, followed by dispersing the dispersion in a water/organic solvent mixture to form droplets; the resin is then cured; more epoxy resin is added to form an outer shell, and after further curing the capsules are filtered off and air-dried. Coatings of the composition resist leaching of (A) on exposure to water.
Patent GB-1056628-A (GB)
Title: Method of flame working mineral body
Inventor: HEWLETT ARTHUR JAMES
IPC: E21B7/14
Filed: 1965-09-27
Abstract: 1,056,628. Cutting stone. H. E. FLETCHER CO. Sept. 27, 1965, No.41068/65. Heading B5E. [Also in Division F4] A method of flame-working a heat spallable mineral body, such as granite, comprises introducing into a chamber of a flame-cutting apparatus 2 a mixture of fuel and oxidant, burning the mixture in the chamber at superatmospheric pressure to form a flow of products of combustion, introducing into the flow a second quantity of fuel and directing the flame jet 4 into contact with an exposed surface of the mineral body. The flame jet 4 applied to the surface of the mineral body induces thermal stresses therein so that a differential expansion in particles 3, 4a, 5, 6, 7, 8 and 9 causes the latter to separate along planes of joinder 10, 11, 12, 13 and 14 without the particles themselves being broken down. As shown, in Fig. 2, a flame tool 20 for cutting through a block of stone 21a is attached to a vertically adjustable carrier 22 mounted on a support 24. The flame tool may be used for cutting a hole in the stone.
Patent GB-1204313-A (GB)
Title: Improvements in or relating to space heating devices
Inventor: WATTS HERBERT
IPC: F23C99/00
Filed: 1966-09-16
Abstract: 1,204,313. Air heaters in association with incandescent gas fires. RADIATION Ltd., and THERMAL SYNDICATE Ltd. 13 Sept., 1967 [16 Sept., 1966], No. 41506/66. Headings F4S and F4W. [Also in Division H5] A space heating device comprises a surface 10 emitting radiant heat and a screen, which may be in one or two parts 2, 3, of a fused silica and has at least one aperture 4 for the transmission of radiant heat. The screen is translucent and the top portion may be illuminated by a light. The screen may be flat or curved. The surfaces 10 may comprise a surface combustion heater (gas or oil) or an electric heating element. If the radiant heaters are not positioned opposite an aperture reflectors are provided to reflect the radiation through the apertures. The apertures may be of the same or different shape or area and may be in a regular or irregular pattern. A heat exchanger 16 may be provided using hot combustion waste gas to warm air entering via inlets 23 and delivered from outlets 25 to the space to be heated. Thermostatic control of the heat output (not described in detail) may be provided.
Patent GB-1278702-A (GB)
Title: Electrophotographic process
IPC: G03G5/06
Filed: 1969-08-20
Abstract: 1278702 Electrophotographic composition RANK XEROX Ltd 20 Aug 1969 [22 Aug 1968] 41586/69 Heading H1K An electrophotographic composition comprises a photoconductive quinacridone pigment and a binder, the pigment having the formula wherein R is CH 3 , C 2 H 5 , OCH 3 , OC 2 H 5 , a halogen or mixtures thereof and R<SP>1</SP> is an aromatic group, a heterocyclic group, an alicylic group or mixtures thereof. In the specific embodiments R is CH 3 , C 2 H 5 , Br, Cl or OCH 3  and R<SP>1</SP> is pyridyl. The binder is preferably copolystyrene-butadiene, methyl phenyl silicone resin, copoly vinyl chloride/acetate or polyvinylcarbazole. The composition is used to form an electrophotographic plate which may be self-supporting or formed on a support of Al, steel, brass, glass coated with metal or SnO, plastics or paper. If an epoxy resin is used as binder it is cured in situ.
Patent GB-1064412-A (GB)
Title: Improvements in and relating to the manufacture of brushes
Inventor: MARWOOD MICHAEL WILLIAM
IPC: A46B3/12
Filed: 1964-10-13
Abstract: 1,064,412. Brushes. BRITON BRUSH CO. Ltd. Oct. 7, 1965 [Oct. 13, 1964], No. 41721/64. Heading A4K. The filaments of a paint brush are arranged to project from a ferrule and the projecting ends are cut off, close to the ferrule, with a hot wire or heated knife, so that they fuse together. A sawing action may be employed to effect the cutting.
Patent GB-1505369-A (GB)
Title: Manufacture of multiple panes
IPC: C03C27/06
Filed: 1975-10-13
Abstract: 1505369 Multiple panes SAINT-GOBAIN INDUSTRIES 13 Oct 1975 [15 Oct 1974] 41841/75 Heading C1M An apparatus for applying plastics material to the edges of a multiple pane comprises a first transporter to carry the pane horizontally between opposed injection nozzles directed at a first pair of parallel edges, a second transporter to then carry the pane horizontally between opposed injection nozzles directed at a second pair of parallel edges and a means to transfer the pane from one pair to the other while aligning the second pair of edges parallel to the direction of motion on the second transporter. The transfer mechanism may comprise a vertical rotatable column with grippers (e.g. vacuum nozzles) to grip the pane during transfer by rotation.
Patent GB-1117896-A (GB)
Title: Multi-aperture magnetic logic devices
Inventor: UNDERHILL MICHAEL JAMES
IPC: H03K19/166
Filed: 1964-10-14
Abstract: 1,117,896. Electronic counters. MULLARD Ltd. 19 Aug., 1965 [14 Oct., 1964], No. 41892/64. Heading G4A. [Also in Divisions H1 and H3] A magnetic logic device comprises a magnetic core member 1 (part of a laddie core) of material having a rectangular hysteresis loop provided with main apertures 2, 3 and minor apertures 5, 6, 15, 16, 19 (Figs. 1a, 1b) windings 24, 25 connected to receive A input (bipolar) signals and windings 27, 28 for B input (bipolar) signals being arranged as shown. An output winding 21 provides a signal on the occurrence of an A or B input but not both (Exclusive OR) while an AND output is provided by winding 22. To secure this bipolar drive pulses are provided in a winding 23 and are of the same phase as the input pulses occurring at the same time. The flux pattern produced by a (positive) drive pulse (Fig. 2a, not shown) is changed on the occurrence of a (positive) A or B signal to provide flux in the same direction on both sides of the central minor aperture 19. Following slow reversal of the flux around minor aperture 16 by a small negative prime pulse in winding 29 (which passes through minor aperture 19 in figure of eight manner to eliminate noise in 21), the device is reset by a negative drive pulse in winding 23 when switching of the flux in leg 18 of minor aperture 19 produces an OR output in winding 21. If the A and B signals coincide, the flux pattern is such (Fig. 2e, not shown) that the next drive pulse following a prime pulse produces an AND output from winding 22. A triggered bi-stable divide-by-two device forming one stage of a binary counter is obtained by connecting the output of the Exclusive OR stage as a feed-back loop 30 (Fig. 3, not shown) in series with the A windings 24, 25, the loop passing through aperture 6 for noise cancellation purposes. Another loop 31 connects the B windings through aperture 6 to a previous stage 32 of the device which generates a carry signal for a binary counter. The first pulse from 32 passes through the B windings and sets the flux for an Exclusive OR output in loop 30 and on the appearance of the next drive pulse (the drive and prime windings 23 and 29 of Fig. lb are included but not shown in Fig. 3) this output passes through the A windings in loop 30 and sets a flux pattern for a first input. This persists until the next pulse from 32 provides a second input setting the AND gate to provide an output in the loop (shown dotted) to the next stage on the occurrence of the next drive (clock) pulse which resets the AND gate for the next operation. It is stated that unipolar pulses can be used if extra drive and prime windings and transfluxors &c. are provided.
Patent GB-1348326-A (GB)
Title: Castors
IPC: B60B33/02
Filed: 1971-09-10
Abstract: 1348326 Castors TENTE-ROLLEN GmbH & CO 10 Sept 1971 [27 Feb 1971] 42364/71 Heading A4U [Also in Division F2] A swivelling castor wheel 1 is releasably lockable against running by a leaf spring 4 riveted to the castor fork 2 and pressed into contact with the periphery of the wheel by a toe-operated press member 8 which is axially movable and rockable in a guide bush 7, mounted on the fork 2, and having axially arranged sawteeth 12 which under pressure of the spring 4 latch selectively, with the edge 14 of the bush. The lock is released by toe pressure on a lever 16 fixed to the member 8. For locking the castor against swivelling the spring 4 is replaced by a two-armed spring-loaded locking rocker supported on a transverse spindle and having a latching edge for engagement with ratchet teeth on the bearing 3. In modifications, a cylindrical press member, secured to the spring providing latching pressure, has latching notches extending round its periphery for engagement with notches in a latching leaf spring riveted to the fork, the spring providing latching pressure being extended to form the release pedal, or a latching pawl pivoted in a groove in a cylindrical press member is pressed outwards by a spring and has axially arranged notches for engagement with a latching edge of the guide bush, a release pedal being formed as an extension of the pawl.
Patent GB-1173126-A (GB)
Title: A Method for Producing Methylbutenes
IPC: C07C2/68
Filed: 1968-09-06
Abstract: 1,173,126. Process sequence to isoprene. SUMITOMO CHEMICAL CO. Ltd. 6 Sept., 1968 [7 Sept., 1967; 12 Sept., 1967], No. 42414/68. Heading C5E. Isoprene is produced from ethylene and propylene by the following process sequence: (a) propylene is reacted with benzene to produce isopropylbenzene (1-3 isopropyl groups), e.g. at 0-250 C. using mineral acid or aluminium halide catalyst; (b) ethylene is reacted with the isopropylbenzene(s) from (a) to form corresponding t.-amylbenzenes, e.g. at 180-300 C. and 5-100 atmospheres using an alkali metal catalyst optionally with a promoter; (c) dealkylating the t.-amylbenzenes from (b) to form methylbutenes and benzene by heating in the presence of silica, particularly silica gel, e.g. at 250-500 C.; (d) dehydrogenating the methylbutenes from (c) to form isoprene, e.g. at 300-650 C. in the presence of iron oxide, chromium oxide, calcium nickel phosphate, chromia-alumina, ferric oxide-magnesia or bismuth molybdate.
Patent GB-1405469-A (GB)
Title: Clamping mechanism for tensioning cables and the like
IPC: B21F9/00
Filed: 1972-09-13
Abstract: 1405469 Covering cores by winding K VOGT 13 Sept 1972 [8 March 1972] 42524/72 Heading B8G As the trolley 2, Fig. 1, travels around the vessel 1, Fig. 1, to wind a cable 3 therearound, the cable from the supply 4 is gripped by clamping jaws 6<SP>1</SP>, 6<SP>11</SP>, 6<SP>111</SP> on a braked wheel 5 to tension the cable. The invention relates to a bearing race 25, Fig. 2, that is eccentrically mounted with respect to the axis 8 of the braked wheel 5, said bearing race being used to eliminate the clamping action of the jaws 6, 6<SP>11</SP>, 6<SP>111</SP>. In Fig. 2 each clamp 6 comprises a pivoted jaw 12 that is biased towards a fixed jaw 11 by a compression spring 19 acting on a rod 16. The wheel 5 rotates relatively to a stationary eccentric disc 24, and the eccentric disc 24 causes the rod 16 to be displaced in a manner moving the jaw 12 away from the jaw 11 during the period that the clamp is to release the cable and the instant that the clamp is again intended to grip the cable. The stationary eccentric disc 24 carries a ball bearing race 25 against which the rods 16 press. The polar setting of the disc 24 is adjustable.
Patent GB-1482807-A (GB)
Title: Pressure bonding a silicon or germanium disc to a tabular metal member
IPC: B23K35/00
Filed: 1974-10-01
Abstract: 1482807 Welding by pressure MULLARD Ltd 1 Oct 1974 42638/74 Addition to 1389542 Heading B3R In pressure bonding a silicon or germanium disc 6 at one end of a tubular metal member 3 with the disc normal to the axis of the member, a metal layer 7 having a melting point of 125- 330‹ C. is provided between the disc and member and the disc and member are pressed together at a steady pressure of 1-5 tons/square inch at a temperature of 75-300‹ C. but below the melting point of the metal layer and below the temperature at any liquid phase would form, the pressure and temperature being applied to achieve a bond having a tensible strength of at least 20% of the UTS of the metal layer. A germanium slice 6 is, in an embodiment, polished and sputtered on one side with first a layer of nickel and chromium alloy and then a layer of silver and a tubular member 3 of Kovar (Registered Trade Mark), sealed to a glass envelope 1 is cleaned and a layer of gold is deposited on a turned over portion at its end. An annulus of solder foil, 94% Pb, 3À5% Ag, 2À5% Sn, is placed on the turned over portion of the member 3 and is alloyed thereto at 360‹ C. in a reducing atmosphere. The member 3 with its solder layer are plated with gold, the solder layer is flattened and excess solder is cut off with the gold layer thereon to leave a flat solder layer and then the member 3 is placed in a press with the germanium disc 6 thereon. The assembly is supported by a steel anvil 18 located on a heating element 17 carried by a steel member 16, an asbestos member 14, a steel member 13 and a steel base 11. A ram 19 carrying an assembly of a nickel plated steel pressure plate 25, a heating element 26, a water cooled plate 23, a rubber pad 22 and a steel plate 21 by a bolt 20 is brought into contact with the germanium disc 6, the assembly is preheated to 280‹ C. and the pressure is increased over 10 seconds to 3À5 tons per sq. inch and held for 1 minute, to effect bonding. The bonded assembly forms part of an envelope for an infra-red detector device. In one modification a germanium disc is secured to the end of a long tubular metal member, the glass tube and seal being absent and in others larger discs are sealed to larger tubular members, the solder layer 1 being 95À5% Pb 3À0% Ag 1À5% Sn as an alternative and a silicon disc may replace the germanium disc. Lead or other malleable materials described in parent Specification may be employed.
Patent GB-1430778-A (GB)
Title: N1-oxides of adenosine-5-carboxylates
IPC: C07H19/16
Filed: 1973-09-11
Abstract: 1430778 N<SP>1</SP>-Oxides of adenosine derivatives ABBOTT LABORATORIES 11 Sept 1973 [3 Oct 1972] 42748/73 Heading C2C Novel compounds I in which R 1  is hydrogen, C 1-6  alkyl, hydroxy C 1-6  alkyl or halo C 1-6  alkyl and R 2  and R 3  are hydrogen or, when R 1  is hydrogen, they together form an isopropylidene group and their acid addition salts are prepared by forming 2<SP>1</SP>,3<SP>1</SP>- isopropylidene adenosine - N<SP>1</SP> - oxide by oxidation of 2<SP>1</SP>,3<SP>1</SP>-isopropylidene adenosine using hydrogen-peroxide, cleaving the ether group to form adenosine-N<SP>1</SP>-oxide and reacting the acid with an alcohol R 1 OH in the presence of thionyl chloride. Compounds I in which R 1  is other than hydrogen and R 2  and R 3  are hydrogen are antianginal agents and form with a carrier or diluent a pharmaceutical composition which may be administered orally or parenterally.
Patent GB-962717-A (GB)
Title: A holder or insertion for fine mesh textile articles or fabrics
IPC: B65D77/26
Filed: 1962-11-13
Abstract: 962,717. Displaying. ROTAPACK G.m.b.H. VERPACKUNGSMITTELINDUSTRIE. Nov. 13, 1962 [Dec. 15, 1961], No. 42817/62. Heading A4T. [Also in Division B8] A cardboard insertion used in arranging fine textile articles for display in a carton comprises a blank divided into four sections 10, 14, 15 and 17 by lines of flexure 12, 12<SP>1</SP>, 16 and 18, the sections when bent out of the plane of the blank expanding the latter to nearly twice its original length and giving a spring like effect. The expanded insertion is placed with its edge 11 against the fold line of the article. The sections 14, 15 and 17 bear against the article and may have edges of irregular contour to improve their frictional grip on the fabric.
Patent GB-1442885-A (GB)
Title: Chlorine stable detergents
IPC: C11D7/14
Filed: 1974-10-03
Abstract: 1442885 Detergents containing chlorine bleach JOH A BENCKISER GmbH 3 Oct 1974 [6 Oct 1973] 43002/74 Heading C5D [Also in Division D1] An alkaline detergent composition in the form of a powder or granules, comprises a chlorine-releasing bleaching agent and, as stabilizer, a mixture of an aluminium salt and a zinc salt in a weight ratio of 1 : 10-10 : 1, calculated as Al 2 O 3  and ZnO. The stabilizer is used in quantities of 0À05 to 5À0% of the composition. The aluminium salts may be aluminium sulphate, chloride, phosphate, stearate or silicate; an alkali metal aluminate, an alkali metal or alkaline earth metal aluminium silicate, or an alkali metal aluminium phosphate. The zinc salt may be zinc chloride, sulphate, phosphate silicate or stearate, or an alkali metal zincate. Alternatively, a double compound of these salts may be used, e.g. zinc aluminium silicate, zinc aluminate or aluminium zincate. The bleach may be inorganic, e.g. sodium, calcium or lithium hypochlorite and chlorinated trisodium orthophosphite; or organic, e.g. sodium and potassium salts of di- and trichloroisocyanuric acid. Other ingredients are (A) inorganic and organic sequestrant builders especially sodium tripolyphosphates in quantities of 20-80% of the composition; (B) sodium silicate in quantities of 5 to 79%; (C) nonionic surfactants especially ethoxylated C 9 -C 18  fatty alcohols (3-6 moles EO), ethoxylated nonylphenol and ethylene oxide propylene oxide condensates, e.g. in quantities of 2%; (D) conventional additives. The ratio of (A) to (B) is preferably from 1 : 0À7 to 1 : 2.
Patent GB-1328872-A (GB)
Title: Method of forming a thermoplastic article
IPC: B29C43/54
Filed: 1970-09-09
Abstract: 1328872 Moulding thermoplastic materials SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 9 Sept 1970 [11 Sept 1969] 43160/70 Addition to 1166381 Heading B5A A method of forming a thermoplastic article comprises placing a predetermined amount of a molten thermoplastic polymer M, e.g. polypropylene into a mould cavity defined by a rigid surface 10 and a surface 17 of a body 14A which deforms under moulding pressure and has vents 20, closing the cavity by forcing down a second rigid surface 12 into contact with the polymer and the body 14A while permitting trapped air to escape through the vents, maintaining any unsolidified polymer in the cavity under compression until it is solidified by cooling at least one of the rigid surfaces, and removing the solidified article. The body 14A may comprise an elastomeric ring having a concave inner wall and surrounded by a rigid ring 15 adjacent a shim 16. Alternatively it may comprise a circular inflated rubber tube. A predetermined quantity of polymer may be fed to the mould cavity from a weigning table supplied from an extruder.
Patent GB-923778-A (GB)
Title: Automatic machine for dispensing drinks from sealed containers
IPC: G07F13/00
Filed: 1961-12-04
Abstract: 923,778. Opening bottles. NOTOMAT S.p.A. Dec. 4, 1961 [Dec. 5, 1960], No. 43259/61. Class 125(2). [Also in Group XVIII] In a coin freed machine for dispensing drinks by opening bottles and pouring the drinks, two embodiments are described for removing caps from the bottles. As shown in Fig. 1, the bottle is gripped in a support 12 by jaws 32, a tooth 20 moves down to support the neck of the bottle and a tooth 21 is given an upward swinging movement to prise off the cap. The teeth 20, 21 are operated by rotary cams 25, 26. As shown in Fig. 8, the bottle is held in a cradle 45 by a strap 50 operated by a solenoid 52 and the cap-removing means comprises a hook 54 which rests in a slot 58a in a guide 58 and is connected to a link 55. A solenoid 57 connected to a lever 70 is energized to lift the hook out of the way of a descending bottle and then de-energised to return the hook so it removes the cap during movement of the cradle by motor 49, gear 48 and toothed sector 46 from a horizontal position to position D.