baber/WOPTO huggingface dataset:
Patent GB-1055089-A (GB)
Title: Hardenable boron-containing synthetic resins
IPC: C08G79/08
Filed: 1965-11-03
Abstract: A hardenable boron-containing synthetic resin is prepared by heating together formaldehyde or a formaldehyde donor and an aryl borate having at least two positions per molecule available for reaction and having the empirical formula BOx(OAr)y, wherein x has a value of greater than 1.0 and less than 1.5 and y is greater than 0 and less than 1 and Ar represents an optionally substituted aryl radical.  The reaction may take place either by heating the reaction mixture initially at 20 DEG  to 50 DEG  C. and then slowly raising the temperature to 100 DEG  C. or by heating the reaction mixture initially at 40 DEG  to 80 DEG  C. and thereafter heating the product at 80 DEG  to 100 DEG  C.  Suitable formaldehyde donors are paraformaldehyde, trioxane, tetroxane or a hemiformal of a primary or secondary alcohol. The aryl borates may be prepared from boric acids or boron oxide and phenolic compounds. A catalyst such as hexamethylene tetramine may be added to the reaction mixture and the reaction may take place in the presence of a solvent. Modified resins may be produced by adding phenol, melamine or urea to the reaction mixture.  Moulding compositions may be produced from the resins by mixing the latter with asbestos, or resins based on phenol, urea or melamine.
Patent GB-1040788-A (GB)
Title: Bearings in radial crank type hydraulic motor
IPC: F03C1/22
Filed: 1964-11-17
Abstract: 1,040,788. Hydraulic reciprocating motors. OILGEAR CO. Nov. 17, 1964 [Dec. 16, 1963], No. 46738/64. Heading F1A. [Also in Division F2] In an hydraulic motor a crankshaft 11 has a crank pin 12 rotatable within a ported sleeve 40 which is surrounded by radially extending pistons 47 in cylinders 46 secured in the housing 14. Fluid is supplied and discharged by ports (not shown) in the crankshaft housing 16 communicating with respective annular grooves 30, 31, respective radial holes 38, 39, respective inclined passages 33, 34 in the crankshaft and respective radial holes 36, 37 with ports 26, 27 in the crank pin. The sleeve 40 has secured to it a ring 50 with a rail 93 which runs in a groove in a member 89 having a further perpendicular groove to receive rail 94 on the housing. Ports 41-45 in the sleeve 40 are in constant communication with passages 84 through the bearing shoes 48 and passages 71 through the pistons 47. Each bearing shoe is held in a counterbore 73 in a piston 48 by rocker pins and the piston closed by sphericalheaded pin 67 and held by rocker pins 66. Supply of pressure fluid from port 26 urges corresponding pistons towards the sleeve and thus turns the crank pin, the ports 26 and 27 then communicating with successive cylinders and causing successive reciprocation of the pistons 47 to maintain rotation of the crank pin. The bearing 48 has a recessed bearing surface (Division F2). Alternatively the housing may rotate relative to the crankshaft.
Patent GB-1012069-A (GB)
Title: Emergency power supply unit
IPC: H02J9/02
Filed: 1963-11-27
Abstract: 1,012,069. Standby systems for auxiliary lighting apparatus. MAINTENANCE CO. Inc. Nov. 27, 1963 [Dec. 6, 1962; Sept. 24, 1963], No. 46883/63. Heading H2H. [Also in Division F4] An emergency lighting system comprises an auxiliary lamp 36 supplied from a standby battery 44 when the main A.C. supply to the normal lighting system fails. During normal operation when the A.C. supply exists and is supplying the primary winding 47 of a transformer 42, the battery 44 receives a charge from the secondary winding 49 of the transformer by way of a half wave diode 50 thus maintaining the battery in a charged condition. Whilst A.C. is being supplied to the circuit and because of the values of the circuit components 56, 58, 60, 62, 64 a silicon controlled rectifier 54 receives gating pulses such that it passes a small current sufficient to warm the filament of the auxiliary lamp 36. Upon failure of the A.C. supply the polarities in the circuit reverse causing the rectifier 54 to receive a large gating pulse rendering it continuously conductive causing full illumination of the auxiliary lamp 36. Upon restoration of the A.C. supply the system reverts to normal operation. Components 55, 57, 59 protect the rectifier 54 against transient conditions. Specification 1,012,068 is referred to.
Patent GB-1336060-A (GB)
Title: Device for exchange of objects in vacuum space
IPC: H01J37/02
Filed: 1971-10-08
Abstract: 1336060 Stud and socket fastenings TESLA NARODNI PODNIK 8 Oct 1971 [25 Feb 1971] 47043/71 Heading E2B [Also in Division H1] A device for exchange of objects in vacuum space e.g. quick exchange of diaphragms or specimen holders, such as in electron microscopes, comprises a fork shaped pull rod 1 on which is freely suspended a holder 2 releasably engageable with the object, e.g. cartridge 10 with aperture 13, the holder 2 comprising a rod 5 with disc 3 fixed thereto, the rod being axially movable in tube having further disc 6 attached thereto, and gripping pins 8 radially retractable towards the rod by axial reciprocation of the rod with respect to the tube for engagement or otherwise with the object, e.g. groove 11 in cartridge 10, the fork shaped pull rod being movable vertically and horizontally. Gripping pins 8 are actuated by relative movement between the tube and rob 5, as in Fig. 2 (not shown) for instance when pressure is applied downward against impeded disc 6. When located in aperture (15) Fig. 3 (not shown), flexible ring (16) of meandering latches hold the object. Described is the initial insertion in a rough pumping chamber of an electron microscope and then through a plate valve after exhaustion. By pressing on bearing disc 13 when the object is positioned in member (14), the gripping pins retract enabling the bearing holder to be withdrawn (Figs. 4 and 5, not shown).
Patent GB-1047030-A (GB)
Title: Improvements in or relating to anodes suitable for use in cathodic protection and other electrolytic processes
IPC: C23F13/02
Filed: 1963-11-28
Abstract: An anode for use in cathodic protection and other electrolytic processes comprises a body of lead or lead alloy, e.g. containing 0.01-0.5% of Te or Bi with or without 0.1-3% Ag, incorporating platinum micro-electrodes and supported by engagement with a member or structure formed from Ti, Zr, Nb or Ta arranged for connection with the part with which the anode is to be used, e.g. a structure to be cathodically protected.  The supporting member may comprise a rod of Ti, Zr, Nb or Ta provided with a copper core and embraced by and projecting from the body to engage with another part of Ti, Zr, Nb or Ta which in turn is arranged for connection with the part to be used. The body may be formed from dispersion-strengthened lead alloy containing oxides.
Patent GB-1065304-A (GB)
Title: Shelving
IPC: A47B96/02
Filed: 1965-11-08
Abstract: 1,065,304. Shelves. FLEXIBLE SELECTION (PROPRIETARY) Ltd. Nov. 8, 1965 [Nov. 13, 1964], No. 47171/65. Heading A4B. A shelf unit (10) of sheet metal has tongue means (12) along one longitudinal edge and a groove defining formation (14) along the other longitudinal edge so that by joining the tongue of one unit with the groove of another unit a composite shelf is provided of width equal to the sum of the widths of the units. The shelves are supported on brackets having hooks to engage slotted uprights and lugs or tongues on partitions can be engaged with longitudinally spaced holes in the shelves.
Patent GB-1061967-A (GB)
Title: Dispenser for materials under pressure
IPC: B65D83/14
Filed: 1963-12-02
Abstract: 1,061,967. Discharging liquids by gaseous pressure. R. H. ABPLANALP. Dec. 2, 1963 [Jan. 9, 1963], No. 47458/63. Heading F1R. A pressurized dispenser comprises an outer container 1, for a liquid or gaseous propellant or a mixture of a propellant and a reagent, e.g. a hydrocarbon and water, and an inner container 20' for an active ingredient, e.g. liquid starch, a piston 22, exposed to the propellant pressure, being slidable within container 20 and on a dip tube 19 such that on opening a valve assembly 6, 14, the material in container 20 passes through one or more valve housing apertures 16 and mixes with a stream of fluid passing through the valve housing from dip tube 19. The valve assembly is spring-loaded and comprises a main valve 6 and a slide valve 14 opened together by depression of a button 8. Valve 6 has a port 11 co-operating with a sealing disc 5, and valve 14 has a sealing ring 15 co-operating with apertures 16. Passages 17 are provided between valves 6 and 14 for the fluid from the outer container 1. Examples of propellants are hydrocarbons, nitrogen and carbon dioxide, which may occupy the outer container 1 alone or together with water, a solvent or a catalyst for the material in the inner container 20. Valve 14 may be omitted to permit intermingling of the materials when the main valve is closed.
Patent GB-978025-A (GB)
Title: Improvements relating to adjustable spanners
IPC: B25B13/18
Filed: 1962-12-17
Abstract: 978,025. Wrenches. J-M. MAKOLSKI. March 7, 1963 [Dec. 17, 1962], No. 47615/62. Heading B4W. A spanner comprising a fixed jaw 2 projecting at right angles to a handle 1 and a similarly projecting movable jaw 4 slidably mounted on the handle 1 and adjustable thereon by means of a second handle 8 pivoted to the movable jaw and having an abutment mounted on or connected thereto and engageable with a series of selectable abutments or an adjustable abutment on the handle part 1. As shown in Fig. 1, the handle part 8 is of U-section and embraces the handle 1 at one face and the side edges thereof. A flat strut 12, pivoted at 13 to the handle 8, has at its free end an abutment tooth 14 which is selectively engageable with any one of a series of abutment notches in the edge of the handle 1. The tooth 14 is urged into a selected notch 15 by a leaf spring 16 which also urges the handles apart. In a modification, Fig. 2, the part 1 is fixed or integral with a screw threaded portion 20 in an internally screw threaded handle 21. In place of the strut 12 a link 23 is pivoted at 24 to the free end of the handle 8 and at 25 to a collar 27 mounted in an annular groove 28 in the tubular handle 21. The link is arranged so that it can pass beyond dead centre position when the handles are brought together.
Patent GB-1524690-A (GB)
Title: Structure comprising a plurality of rectangular building elements
IPC: A47B77/02
Filed: 1975-11-19
Abstract: 1524690 Modular furniture COHEN PESMAN ZEE ONTWERP B V 19 Nov 1975 [20 Nov 1974] 47693/75 Heading A4U [Also in Division E1] The invention provides a structure, such as a kitchen interior, comprising a plurality of contiguous rectangular parallelepiped building elements the lengths of the edges of which each constitute a term in the same mathematical series in which each term is the product of the preceding term by the factor (¢ + ¢#5), and in which structure at least two terms are represented by lengths of respective said elements.
Patent GB-988021-A (GB)
Title: Self-loading transducer mounting
IPC: G11B5/60
Filed: 1962-12-18
Abstract: 988,021. Supporting magnetic recording &c. heads. SPERRY RAND CORPORATION. Dec. 18, 1962 [Dec. 29, 1961], No. 47679/62. Heading G5R. A fail-safe mounting for a head 15 comprises an airfoil 18 pivoted at 24, which hangs vertically as in Fig. 1 and spaced from a drum surface 14 when not rotating. Rotation of the drum engages the contiguous air with the airfoil and the differential pressures over the regions A-B, B-C and C-D pull the head towards the drum, the approach being limited by the air-bearing established between the drum and the surface at B. In a modification, Fig. 3, the airfoil has an addition facet, D-E. In an embodiment for use with a horizontal disc 34, Fig. 5, the airfoil is a solid of revolution, 38, with a convex undersurface 51 facing the disc. The initial spacing is determined by spring means 43.
Patent GB-1199184-A (GB)
Title: Electrical Isolator for Gas Feed Line
IPC: H01J5/06
Filed: 1967-10-20
Abstract: 1,199,184. Electrical isolator tubes. HUGHES AIRCRAFT CO. 20 Oct., 1967 [19 Dec., 1966], No. 47884/67. Heading F2P. An electrical isolator 2 for a gas feed pipe 8 comprises a series of spaced-apart sections of electrical insulating material 10, made e.g. of glass, which are connected together by conductive pipe sections 8 and, at each end, to the pipe and uniform electrical resistances, e.g. resistors 6 which are connected across each section 10 to distribute evenly a potential, developed across the pipe from one end to the other, e.g. by the flow of ionized gas therein. The isolator 2 is particularly for use in a pipe 8 leading from a propellent reservoir, containing e.g. mercury, to an electron bombardment ion thrustor the propellent being passed through the pipe 8 as a vapour, or gas. With short sections the probability of voltage breakdown is reduced since the minimum breakdown voltage according to the Paschen curve, Fig. 1 (not shown), is not reached for all required lowpressure flow levels. In a modification, Fig. 3 (not shown), in which the isolator sections are each slightly conductive to provide their own voltage division, a glass envelope (32), located within a heater enclosure (20) to prevent vapour condensation is connected in a feed pipe (22), and accommodates a number of isolator sections (30) which are formed of a glass having slight conductivity, e.g. lead glass, and are separated by perforated stainless steel envelopes containing steel wool (34). The envelopes are adapted to intercept all charged particles so that they cannot spread from one isolator section to another. Continuity strips (36) connect the end envelopes to the respective adjacent portions of the pipe (22). In an alternative arrangement all of the sections 10 are coated with a high-resistance film, the resistors 6 being omitted.
Patent GB-1115623-A (GB)
Title: Photographic supports
IPC: G03C1/91
Filed: 1965-11-12
Abstract: A method of making a photographic support comprising electron bombarding a layer of hardened gelatine carried by a supoort material to lower the contact angle of the gelatine surface to less than 75 degrees.  The support may be cellulose acetate, polyethylene terephthalate, polycarbonate, metal (e.g. aluminium) and glass.  The gelatine coating may be hardened with formaldehyde or chromic chloride and may contain pigments and dyes.  The treated gelatine coating may be further coated with an aqueous photographic emulsion.ALSO:A method of making a photographic support comprising electron bombarding a layer of hardened gelatine carried by a support material to lower the contact angle of the gelatine surface to less than 75 DEG .  The support may be cellulose acetate, polyethylene terepthalate, polycarbonate, metal (e.g. aluminium) and glass. The gelatine coating may be hardened with formaldehyde or chromic chloride and may contain pigments and dyes.  The treated gelatine coating may be further coated with an aqueous photographic emulsion.
Patent GB-1255782-A (GB)
Title: Improvements relating to boilers
Inventor: PAGE HAROLD ARTHUR
IPC: F22D11/00
Filed: 1968-10-10
Abstract: 1,255,782. Shell-type boiler. COCHRAN & CO. ANNA Ltd. 9 Oct., 1969 [10 Oct., 1968], No. 48136/68. Heading F4A. A shell-type boiler encloses a chamber 9 in which feed water is preheated by hot water or steam and from which gases are released. Feed water is pumped to the boiler by a pump 3 through a pipe 4 which passes through the boiler shell 1 within a stuffing-box or pad 5. The feed water is ejected through a nozzle 6 into a Venturi passage 7 which induces steam or hot water for heating the feed water. The heated water in chamber 9 passes into the boiler through a hole or grid 12. The nozzle 6 may have a spraying disc (14), Fig. 2 (not shown), which directs water on to a conical deflector (17) so that the water is sprayed out to the sides of the passage. The chamber 9 is provided with a passage 10 and a valve 11 for discharging non- condensible gases. The boiler is heated by a furnace tube 2. In another embodiment, Fig. 3 (not shown), the chamber 9 and passage 7 are located below the water level (B), and water is discharged from the chamber 9 through a pipe (16).
Patent GB-990698-A (GB)
Title: Production of semiconductor devices
Inventor: CAPELING NICHOLAS
IPC: H01L21/00
Filed: 1962-12-21
Abstract: A method of manufacturing a semi-conductor radiation-emitting diode comprises jet-etching the surface while energizing the diode and monitoring the emitted radiation to provide an indication of the removal of material.  As shown, Fig. 1, a light-emitting diode is produced by diffusing zinc into one face of a water 1 of <PICT:0990698/C4-C5/1> <PICT:0990698/C4-C5/2> gallium arsenide, indium phosphide, or an alloy of both, to form a PN junction, and polishing the opposite face of the wafer.  A molybdenum ring 2 is attached to the polished face of the wafer and a small molybdenum stud 3 is attached to the other face.  The device is etched to reduce the extent of the junction to that part immediately below stud 3.  As shown, Fig. 2, the diode is then mounted in a jig provided with contacts 5 through which it is energized and emits infra-red radiation which is monitored by a photo-cell 9 mounted behind a glass nozzle 7 through which a fine jet of etchant is directed at the polished face of the wafer, the etchant forming a light-guide.  The signals from the photo-cell are amplified and may be applied to a control system 12 to regulate the etchant supply.  If the etchant is opaque to infra-red radiation it is replaced with water at intervals during which the radiation is monitored.  The diode may be encapsulated and a protective window fitted over the emissive surface which has been jet-etched.  The semiconductor wafer can also be of gallium phosphide or gallium arsenide/gallium phosphide alloy, and the etchant may be hydrochloric acid mixed with either sulphuric acid or hydrogen peroxide.
Patent GB-1176916-A (GB)
Title: Ethylbenzene Dehydrogenation
Inventor: GHUBLIKIAN JOHN RICHARD
IPC: C07C5/48
Filed: 1968-10-14
Abstract: 1,176,916. Styrene. BADGER CO Inc. 14 Oct., 1968, No. 48502/68. Heading C5E. Styrene is produced by contacting ethylbenzene, steam and oxygen-containing gas in the presence of an iron oxide catalyst at a pressure of 3 atmospheres or below, the amount of steam being 4-30 mols/mol ethylbenzene and the amount of oxygen being in the range 0À01-1À0 mol/mol ethylbenzene and being sufficient to maintain an approximately isothermal temperature profile in the reaction zone within the range 900-1350‹ F. The xygen provides heat by preferential combus-   tion of carbon, hydrocarbon-containing material and/or hydrogen. The oxygen is preferably pre-mixed with the steam, and additional oxygen may be supplied at one or more intermediate points in the reaction zone. The preferred catalyst comprises 2% K 2 O, 5% CrO 3  and 93% Fe 2 O 3  deposited on magnesia.
Patent GB-1234905-A (GB)
Title: Improvements in or relating to thorium film cathodes
IPC: H01J9/04
Filed: 1969-10-02
Abstract: 1,234,905. Cathode materials and processing. SIEMENS AG. 2 Oct., 1969 [3 Oct., 1968], No. 48503/69. Heading H1D. A thorium film cathode is manufactured by mechanically forming a cathode blank from a starting material consisting of a core of one or more high-melting point metals, e.g. W, containing thorium oxide, at least one of the metals being capable of forming a stable carbide, an outer coating of a high-melting point metal or metals, e.g. Rh, Os, Ir, Pt and Re, having no tendency to form a stable carbide or carbides, and subsequently subjecting the blank to a conventional carburizing process to produce an inner reducing coating of, for example tungsten carbide. The material of the outer coating has a higher escape energy than the carbide(s) of the core material, has good migration properties for thorium, and is such that carbon can diffuse through it. The core material may comprise tungsten wire containing 1-2% by weight of thorium oxide, and an outer layer of rhenium at least 0À5Á thick (preferably 2-5Á) may be formed on the tungsten wire by plating or coating by electrolytic, chemical or vapour deposition; alternatively it may be formed by ease-forging and the combination is subjected to a common drawing or rolling process. The core material may be alloyed or mixed with up to 25% by weight of one or more of the metals Rh, Os, Ir, Pt and Re, e.g. 23% by weight of Be. The cathodes so formed may be annealed in a hydrocarbon atmosphere for the carburizing process.
Patent GB-1325969-A (GB)
Title: Pallet retrieving system
IPC: B65G1/06
Filed: 1971-10-19
Abstract: 1325969 Transporting pallets in warehouses NORTH AMERICAN EQUIPMENT CORP 19 Oct 1971 [18 Nov 1970] 48536/71 Heading B8E When a pallet 52, Fig. 18, is placed at a first station as shown, a trolley 34 which is at rest at a second station automatically moves the pallet 52 to the second station as in Fig. 20. As long as pallets are placed at the first station this continues, pallets being placed in sequence as shown in Fig. 22. If the pallet 52, Fig. 23, is removed from the second station the trolley will automatically move pallets 53, 55, 56 one space to the left so that the second station is filled and no gaps are present in the line of pallets. This activity takes precedence over adding more pallets to the line of pallets even if a pallet is placed at the first station. When the second station is occupied and there is no pallet waiting at the first station the trolley returns to a rest position at the second station. The carriage is driven by a motor 41, Fig. 1, and a drum 42 round which a cable 43 passes, both ends of which are anchored to the trolley. Movement of the trolley between first and second stations is controlled by switches 32, 33, Fig. 2, which sense the presence or absence of pallets thereon. Intermediate pallets are sensed by a cam-wheel 118, Figs. 7, 8, which operates one or other of switches 57, 58 by tensioning or slackening a cable 77 as the trolley passes beneath the pallets. The trolley has a shoe 92, Fig. 11, urged to the right by a spring 103 so that when the trolley is moving from left to right and the shoe engages a pallet 53 the shoe is held stationary for a time and descends below the level of the pallet as wedges 102 ride down rollers 94. If the direction of the trolley is reversed with the shoe 92 under a pallet the latter will be raised and carried to the left by the trolley. This arrangement is suitable for light loads. For heavier loads a ratchet mechanism Fig. 28, is provided to hold the shoes in their raised positions. When the trolley is moving from right to left and the camwheel 118, Fig. 14a, rides under a pallet 53 the shoes 92 are lowered to pass under the pallet by links 119, 123, 124, 126. These turn cams 96, 97, Fig. 11, on which rollers 94 rest. A latch is provided to hold the cam-wheel 118 down as it moves between adjacent slots on the base of the pallets. A latch release plate disengages the latch when the trolley moves from under a pallet.