baber/WOPTO huggingface dataset:
Patent GB-1233328-A (GB)
IPC: F16K47/00
Filed: 1969-12-11
Abstract: 1,233,328. Valves. ROBERT BOSCH G.m.b.H. 11 Dec., 1969 [12 Dec., 1968], No. 60469/69. Heading F2V. A valve device comprising a spring-loaded check valve 3, 7 the closing force of which can be overcome by a slidable unblocking piston 17 which can be controlled by a control flow of pressure medium is divided to produce a first partial flow (via 23, 33) that which acts upon the base of the piston 17 to move the piston in a direction to open the check valve, and a second partial flow (via 30) an inlet 32 of which can be opened by the piston 17 itself during the course of the movement of the latter in the said direction. The valve operates as a check valve with an inlet 11 and an outlet 12. If, however, the direction of flow is to be reversed, a control fluid medium is conducted through passages 29, 28 where a first portion is throttled at 20 and is conducted to the base of the piston 17. The piston is displaced which further displaces a plunger 14 to open the pilot valve and relieve pressure in the conduit 12. Further movement of the piston 17 uncovers the inlet 32 and the piston rapidly moves to open the main valve 3. The throttle cross-section and thus the operating speed of the piston 17 can be varied by means of a threaded bolt 25.
Patent GB-1238043-A (GB)
IPC: A44B19/34
Filed: 1968-06-20
Abstract: 1,238,043. Fabric for making zip fasteners. LIGHTNING FASTENERS Ltd. 9 Sept., 1969 [20 June, 1968], No. 29471/68. Heading D1K. [Also in Divisions E1 and E2] Zip fastener stringer tapes are made by cutting a broad strip of fabric into narrow strips. The tapes are made with longitudinal ribs running down one edge, formed either by using longitudinal threads of greater diameter in the rib than elsewhere, or a cluster of threads, or by folding the edge of the tape. The tape may be warp knitted and may be divided by incorporating acetate threads at intervals which are subsequently dissolved by acetone. The edge of a woven tape is prevented from fraying by using thermoplastic weft and including thermoplastic warp threads at the dividing lines, the fabric being cut into tapes by hot cutting discs.
Patent GB-1250098-A (GB)
IPC: B63B35/44
Filed: 1969-04-11
Abstract: 1,250,098. Off-shore structures. COMPAGNIE GENERALE D'AUTOMATISME. 11 April, 1969 [12 April, 1968], No. 18699/69. Heading E1H. A floating structure includes a platform 10, a hollow cylindrical support 11, a hollow base 12, a chamber 13 for machinery, columns 14, 15 and a weight 16, an inclined plate 17 being mounted on a ring 18 fixed to the support 11 below the water-line 19 so as to prevent the structure drifting due to the action of the swell 20. When the swell travels in direction 21 an opposing force acts on the plate in direction 22. If the direction of the swell reverses the inclination of the plate must also be reversed. Thus the plate may be an annular disc 1 attached by pivots to a ring 2, which is supported by pivots perpendicular to those for the disc, whereby the latter can be inclined in any direction. The disc may be elliptic with its minor axis in a horizontal plane. Alternatively, the plate may be rectangular with its shortest edges horizontal. The plate may be used to stabilize a floating structure pivotally secured to the sea bed, Fig. 5 (not shown).
Patent GB-1252015-A (GB)
IPC: F16B35/00
Filed: 1968-12-18
Abstract: 1,252,015. Making bolts; assembling force fits. STANDARD PRESSED STEEL CO. 18 Dec., 1968 [20 Dec., 1967], No. 60256/68. Headings B3A and B3U. [Also in Division F2] A method of making a bolt or the like comprises providing a stud 10 and a nut 20, threadably engaging the nut on the stud, drilling a blind hole into the threaded joint formed between the stud and the nut and driving a pin 30 into the hole, the pin having a slightly greater cross-sectional area than the hole. The stud and nut are initially mechanically worked by conventional equipment to the desired shapes and then heat treated. After heat treatment the threads are formed on the stud and in the bore of the nut. The stud and nut are normally of stainless steel, but two different, compatible alloys may be used, the stud at least being of an alloy which develops high strength properties, either by the combination of mechanical working and heat treatment or by mechanical working alone.
Patent GB-1252289-A (GB)
IPC: G03B27/54
Filed: 1968-11-26
Abstract: 1,252,289. Photocopying apparatus. AGFA. GEVAERT A.G. 26 Nov., 1968 [30 Nov., 1967], No. 56036/68. Heading F4R. [Also in Division G2] In a projection copier, an original is supported by a surface 1a of a table 1 which is spaced from a microfilm camera 4 carried by a stand 2, a pillar 2a thereof supporting two parallel rows of spotlights 11-18, 21-28. The spotlights are such that the intensity of a beam emitted thereby so varies with the inclination of the light rays to the central beam that, by adjustment of the two rows of spotlights, the intensity of illumination can be increased towards the edges of an area on the surface defined by an original to compensate for edge fall off in the camera optical system in a direction perpendicular to those edges. The central beams of the lamps are so directed approximately at the edges 1b, 1c that the intensity of illumination increases towards the edges parallel to the rows of lamps. The prismatic sectioned pillar 2a carries two adjustable clamps 6, 7 to which are attached circular sectioned lamp supports (6a, 6b, 7a, 7b) (Fig. 2, not shown) on either side of the pillar. To achieve uniform density of the resultant negative in the direction perpendicular to the supports, the heights of the clamps 6, 7 are adjusted and the spotlights 11-18, 21-28 pivoted, and in the direction parallel to the supports, uniform density is achieved by adjusting the spacings of the lights.
Patent GB-1252921-A (GB)
IPC: F16K5/20
Filed: 1968-01-27
Abstract: 1,252,921. Valves. HATTERSLEY NEWMAN HENDER Ltd. 9 Jan., 1969 [27 Jan., 1968], No. 4368/68. Heading F2V. Under low pressures, rotary ball valve member 13 contacts radially inner convex regions 19 of resilient seals 15. As the pressure increases, the ball, when closed, migrates towards the downstream seal and distorts the latter to obtain additional contact on surface 22 of that seal. The fluid has access via holes 21 to annular recesses 18a in the seals and acts on the upstream seal to distort surface 22 of that seal into contact with the ball.
Patent GB-1256958-A (GB)
IPC: G03G15/10
Filed: 1969-03-17
Abstract: 1,256,958. Electro-photographic developing processes. RICOH K. K. March 17, 1969 [March 25, 1968], No. 13809/69. Heading G2H. Electrostatic latent image bearing sheets are passed between development electrodes submerged in a solution containing charged toner particles; the field between the electrodes being reversed after developing each sheet so as to stop toner from accumulating on the electrodes. To obviate the need for reversing successive sheets as the field is reversed, electrodes 11, 12 are mounted on a shaft 14a which is rotated by a gear 15 to reverse the electrodes, positions and a commutator and brush arrangement 16 to 19 reverses the field as the shaft rotates. A number of electrode pairs may be used for large sheets. Instead of plate electrodes, rollers can be used.
Patent GB-1258252-A (GB)
IPC: E04C3/12
Filed: 1968-01-23
Abstract: 1,258,252. Beams. WALTER HOLME & SONS Ltd. 23 Jan., 1969 [23 Jan., 1968], No. 3518/68. Heading E1W. A composite beam has continuous upper and lower booms 12, 12a with a number of panels therebetween forming a non-continuous web, at least one adjacent pair of panels being spaced apart by at least an upper bridge piece 14, and each panel consisting of an upper batten 11 and a lower batten 11a and flat side members in the form of sheets 10 or lattices 10a, 15, the side members not extending to the top or bottom edge of the upper and lower batten respectively, which edges are set in grooves in the booms. The beam may be arched, and the sheets 10 are of plywood. Cover pieces 16 are employed both at the spaced joints and also at butt joints. The sheets 10 may be nailed and glued to the battens.
Patent GB-1265134-A (GB)
IPC: C07D471/10
Filed: 1970-06-03
Abstract: 1,265,134. Triazaspirodecandithiones. GRUPPO LEPETIT S.p.A. 3 June, 1970 [18 July, 1969], No. 26854/70. Heading C2C. Novel compounds I where R is C 1  to C 8  alkyl, aryl or cycloalkyl and R<SP>1</SP> and R<SP>2</SP> are H or C 1  to C 8  alkyl, are made by reacting II with an alkali metal cyanide, ammonium chloride and carbon disulphide at between ambient and the boiling temperature of the mixture for 2 to 24 hours, optionally in the presence of solvent; the products obtained (R 1  and R 2  are H) may subsequently be alkylated. Pharmaceutical preparations exhibiting antiinflammatory action contain I as active ingredient; administration may be orally.
Patent GB-1290932-A (GB)
IPC: B21D39/03
Filed: 1970-10-26
Abstract: 1290932 Shearing; strip-joining apparatus; welding by pressure or fusion GUILD METAL JOINING EQUIPMENT CO 26 Oct 1970 [27 Oct 1969] 50698/70 Headings B3A B3R and B3W [Also in Divisions B4-B5] In apparatus for joining the ends of a pair of strips (or sheets) a shear block 45 is movable from the strip shearing position of Fig. 2 towards a fixed shear block 46 for strip joining (Fig. 7), a fired clamp 5 being associated with the movable block 46 and a movable clamp 4 with the fixed block 45. To shear the strip ends a carriage 50, carrying disc cutters 49 to cooperate with blades 47, 48 on the blocks, is moved across the strips by chain drive (62), Fig. 4 (not shown), a screw or piston and cylinder unit. The clamps 4, 5 are operated by piston and cylinder units 17, 18 and clamp 4 is movable by screw jacks (22), 23. If the angular disposition of the weld is varied that of the clamp 4 can also be varied, by changing the couplings between the ends of the clamp platen 15 and the screw jacks. Movable along a rail 77 on the clamp 5 and vertically adjustable relative thereto is a carriage 75 with a welding device 76 which co-operates with a back up electrode 85. The electrode 85 is vertically adjustable in the movable shear block 46. The welding device may be a torch 76, a seam welding wheel, spotweld electrodes, or spot stitch or flash buttweld devices. The carriage 50 is guided by engagement of rollers 52, 53 in rails 54, 55 and rollers 56 in a carriage plate 51 with the blades 49. Vertically spaced guide rolls 11, 12 are provided and side guides 6 are moved by drive  shafts 8 to accommodate different strip widths. In use the strip ends are sheared with the clamps 4, 5 gripping the strips B and A respecsively, the shear carriage 50 is retracted and a platform 34 is moved to align the electrode 85 with the sheared edge of strip A. The clamp 4 is then moved towards the clamp 5 to find the sheared end of strip B to the welding position and the electrode 85 is raised by a wedge and slide arrangement (Fig. 3, not shown) to press the strip ends against the upper plates 16 and 31 of the clamps 4 and 5 respectively. The welding carriage is moved across the strip.
Patent GB-1296539-A (GB)
IPC: H02J9/02
Filed: 1969-12-24
Abstract: 1296539 Emergency lighting systems SOC DES ACCUMULATEURS FIXES ET DE TRACTION 29 Dec 1970 [24 Dec 1969] 62946/69 Heading H2H  An emergency lighting system comprises a plurality of lighting units 1, 2, 3, each connected to an A.C. supply by way of a main switch 4 and a control switch 5, each of the lighting units including a main lamp 7 and an emergency lamp 15, the arrangement being such that when the A.C. supply exists the main lamps 7 are illuminated and when the A.C. supply has failed the emergency lamps 15 are energized by a battery 14. With a control switch 5 and a main switch 4 closed, the main lamps 7 are energized and a relay coil 9 energized by way of a resistor 12 and a capacitor 10 in parallel and a rectifier 11. The output terminals of the rectifier 11 are connected to the battery 14, thereby providing a trickle charge for the battery, the emergency lamp 15 being de-energized since the contacts 16 of the relay are open when the coil 9 is energized. An impedance 13 is connected in parallel with the coil 9, capacitor 10 and resistor 12 to allow an increase in the trickle charge current without increasing the current through the coil 9. When the A.C. supply fails the coil 9 de-energizes, contacts 16 close and the emergency lamp 15 is energized by the battery 14, thereby replacing the illumination of the main lamp 7. The operation of the emergency lamp 15 can be retained when the main lamp 7 is not in use by opening the switch 5 in which case the lighting units 1, 2, 3 are supplied with half wave rectified A.C. which permits charging of the battery 14 but, since the capacitor 8 charges, the lamp 7 is not supplied.
Patent GB-1297695-A (GB)
IPC: A61M1/24
Filed: 1970-03-07
Abstract: 1297695 Dialysis apparatus PAUL SCHEIBNER KG 7 March 1970 11024/70 Heading B1X Haemodialysis apparatus comprises a spirally wound flattened membrane tube 1 and corrugated flexible separator 2. The separator has recesses 6 at the apices 5 of the corrugations 4.
Patent GB-1297772-A (GB)
IPC: B61B12/00
Filed: 1969-05-13
Abstract: 1297772 Rope railways RFD-GQ Ltd and MOBELL MARINE DEVELOPMENT CO Ltd 13 May 1970 [13 May 1969] 24408/69 Heading B7L A device for descending an inclined cable 6 comprises an elongate member 1 which is slidable on the cable and has attached thereto means 2, 4, 5 for supporting a person and also a rod 3. The member 1 has upper and lower friction surfaces 12, 8 at respective ends thereof. If a user sits on the cross-bar 5 he will exert an anticlockwise movement on the member 1 (Fig. 2) which is thus moved into a substantially horizontal position, the friction surfaces 8, 12 firmly engaging the cable 6 to prevent movement of the member 1. If the user then pulls on the rod 3 the member 1 pivots in a clockwise direction and can slide down the cable 6. Pulley wheels or friction rollers may replace the friction surfaces 8, 12.
Patent GB-1305198-A (GB)
IPC: B29C43/12
Filed: 1969-10-24
Abstract: 1305198 Reinforced moulded structures NATIONAL RESEARCH DEVELOPMENT CORP 11 Nov 1970 [24 Oct 1969 11 Nov 1969 16 July 1970] 52192/69 20042/70 and 34569/70 Heading B5A [Also in Divisions B7 B8 D1 F2 and G1] A structural element which may constitute a reinforcement for moulded structures is made from a rope comprising a core 4 of continuous fibre impregnated with a curable matrix material (e.g. epoxy, polyester, furane, resorcinol- or phenol-formaldehyde resins, Friedel-Crafts resins, polyimides or UV catalysed methyl methacrylate) and a sheath 3 of deformable open-work construction (e.g. braided) which, when elongated, compacts the core and causes some of the matrix material to be squeezed out through the sheath. The sheath 3 may be of glass or carbon fibre, and the core 4 of carbon fibre, and the sheath may be separately formed and placed over the core before elongation. Curing the matrix material results in a rigid element, which, if placed over a former prior to curing (Fig. 3, not shown), may be of a desired shape and cross-section. To produce a pipe or hollow element (Fig. 4), a removable or permanent tube 9 may be incorporated in the core as a former. Various reinforced structures, including geodetic frameworks, may be formed by laying the rope-like element under tension around a former, e.g. of wood, polyurethane foam, or dissolvable material and then curing it, the former either being removed or retained. A crane jib (Fig. 5) is manufactured by winding the uncured rope-like element 12 in grooves of a wooden core 11, under tension (thus elongating the sheath), curing the structure, and laying a skin 13 of resin-impregnated glassfibre cloth thereon. A frame for a micrometer screw gauge (Fig. 8) is manufactured by winding the uncured rope-like element 17 in grooves of a wooden former 16, under tension (thus elongating the sheath), curing the structure, and covering it with a skin 18 of resin-impregnated glass-fibre cloth. A boat hull (Fig. 9) is constructed by winding the uncured rope-like element over pegs 23 on a removable wooden mould 20 (Fig. 10), any slack being taken up by final windings along longitudinal grooves 21 and beneath the gunwales 22. The element is then cured, the former removed, and an outer skin 19 of resin-impregnated glassfibre cloth is applied. Boat hulls may alternatively be constructed by laying a net, made of the uncured rope, over  the former, tightening the net by windings along grooves 21 and beneath the gunwales 22, and curing as before.
Patent GB-1314107-A (GB)
Title: Cryogenic cycle and apparatus
IPC: F25B9/14
Filed: 1970-07-22
Abstract: 1314107 Refrigerating CRYOGENIC TECHNOLOGY Inc 22 July 1970 35585/70 Heading F4H In a refrigeration system, a displacer or piston 11 moves within a housing 10 to define an upper fluid balancing chamber 14 and a lower expansion chamber 15 of variable volume. A first flow path 20 of high pressure fluid from a compressor 21 passes through a valve 25 into the expansion chamber, a second flow path 30 of low pressure fluid passes from the chamber 15 after expansion of the high pressure fluid through a valve 31, refrigeration load 32 and heat exchangers 24, 36 to the compressor 21 and a third flow path 37 extends between the balancing and expansion chambers 14, 15 via a regenerator 38. At least a portion of heat of expansion by compressing fluid within the chamber 14 is removed by heat exchange with the stream of low pressure fluid in the path 30 and the high pressure fluid is precooled prior to entry into the expansion chamber by heat exchange with the low pressure fluid in a heat exchanger 24. Means are provided to control the movement of the displacer 11 and operate the valves 25, 31 in correct sequence. The third path 37 may be located within the housing by placing the regenerator within the displacer, Fig. 5, or an extension of the housing may house a piston connected to the displacer communicating through valved ducts with both sides of the compressor, Fig. 6. The apparatus described with reference to Fig. 7 is constructed for open cycle operation wherein the displacer is pneumatically driven by providing separate sources of high and low pressure fluid so that the low pressure fluid is not recycled and high pressure fluid must be supplied continually. The heat exchanger 36 may be replaced by a coil around the or each balancing chamber when a plurality of housings are provided as in Figs. 9 to 11, each having means to move a displacer or piston therein, or a series of balancing and expansion chambers may be formed within a single housing, Fig. 12. Figs. 9 to 13 illustrate staged refrigerators suitable for attaining cryogenic temperatures or serve as liquefiers by connection to Joule- Thompson circuits, Fig. 12.
Patent GB-1328790-A (GB)
Title: Dough moulding
IPC: A21C3/02
Filed: 1969-11-18
Abstract: 1328790 Moulding dough TWEEDY OF BURNLEY Ltd 11 Jan 1971 [18 Nov 1969] 56313/69 Heading B5A In an apparatus for moulding dough, an unshaped piece of dough is fed on to a first conveyer 10, and under a pressure board 12 to coil up the dough; the roll so formed is moved, via an intermediate conveyer 14, to a set of sheeting rollers 18, the roll being fed lengthwise into the rollers, from where it is fed under a mail chain coiling device 22 co-operating with a second conveyer 20. The resulting roll of dough is, for example, fed into pans 26, and has an even texture as a result of being "cross-grained" by feeding the first roll lengthwise to the sheeting rollers. A delay of up to five minutes between the formation of the first roll of dough and the sheeting may be introduced by suitable adjustment of the speed and length of the intermediate conveyer 14.
Patent GB-1328886-A (GB)
Title: Sealing of pipe joints
IPC: F16L55/1645
Filed: 1971-08-31
Abstract: 1328886 Sealing pipe joints BRITISH GAS CORP 31 Aug 1971 [19 Aug 1970 ] 39966/70 Heading F2P Apparatus for internally sealing a joint in a pipe-line comprises a tubular pig 8 having wheels 30, 32 for supporting it coaxially in the pipe, two seals 35, 37 spaced apart and extending around the pig for sealing a space between the periphery of the pig and the internal surface of the pipe, a supply tube 7<SP>1</SP> for supplying sealant to the pig and thence through the wall of the pig to the space between the seals and a device carried by the pig for sensing the position of the joint as the pig is moved along the pipe so that the pig can be accurately located with its seals evenly spaced on the two sides of the joint before the sealant is supplied under pressure. As shown the seals 35, 37 are supported on tubular members 23, 24 and are inflatable into contact with the internal surface of the pipe by nitrogen or other inert gas supplied through pipes 40, 41 from the space between the sealant supply pipe 7<SP>1</SP> and a coaxial tube 7. The sealant is fed from pipe 7<SP>1</SP> to a central member 26 having bores 60 and non-return valves 61 leading to the space between the seals when these are inflated. The pig is of hollow construction so that gas can pass therethrough when the pig is located in the pipe. The pig carries an electromagnetic sensor (66, Fig. 4, not shown) for location of the pig and a pressure transducer (65) for sensing the pressure of the sealant. Electric cables from these are led back through the tube 7 to a monitoring and pig moving console (Fig. 1, not shown). In use the pipe line is broken into and fitted with a by-pass and a pig trap for feeding the pig into the pipe-line, the pig is moved along the pipe line until the sensor locates a joint, the seals are inflated to seal off a space either side of the joint and sealant is pumped into the space to seal the joint. The seals are then deflated and the pig moved to the next joint.
Patent GB-1330031-A (GB)
Title: High temperature gas cooled reactor fuel elements
IPC: G21C3/36
Filed: 1971-03-22
Abstract: 1330031 Fuel elements UNITED KING- DOM ATOMIC ENERGY AUTHORITY 17 March 1972 [22 March 1971] 7507/71 Heading G6C A nuclear reactor fuel element, particularly for a high temperature gas-cooled reactor, comprises a tubular member composed of a stack of nuclear fuel-containing annular discs 2 with provision for coolant to flow between adjacent discs. The discs 2 each have a central hole of uniform bore while their outer diameters gradually increase from the lower end to the upper end of the stack. The discs 2 are centred on a porous ceramic or wire mesh sleeve 3, and the resultant stack is enclosed peripherally by a similar but gradually tapered outer sleeve 4. Each disc 2 is composed of a double layer of coated fissile fuel particles 2a embedded in a graphite matrix, and moulded in graphite on the underside of each disc are three radial ribs 5 which act as spacers. These ribs 5 coincide with three unfuelled radial zones in the adjacent discs 2 of the stack. Coolant gas flows from a pressure gas supply plenum 7 to an outlet plenum 8, passing in turn through the outer sleeve 4, the coolant spaces between adjacent discs 2, the inner sleeve 3, and the centre bore of the stack. The upper and lower regions A and B are occupied by unfuelled graphite to act as a reflector for operation in a thermal reactor, or by fertile material for operation in a fast reactor. In either use, the material in these regions may be formed as ribbed discs so as to be cooled in a similar manner to the fissile fuel. Alternative matrix materials are silicon carbide and pyrocarbon. Where the discs may be subjected to  such thermal gradients as will set up unaccept-  ably high thermal stresses, radial gaps are  formed in the discs to prevent their fracture. In a modified form, part conical annular discs are employed instead of flat annular discs. In either case, the coolant flow direction may be the reverse of that described above.