baber/WOPTO huggingface dataset:
Patent GB-1368751-A (GB)
Title: Branch pipe connectors and connections
IPC: B23B51/04
Filed: 1972-10-18
Abstract: 1368751 Drilling pipes C W BLACKBURN 18 Oct 1972 [11 Aug 1971] 37765/71 Heading- B3C In order to drill a pipe 8, e.g. of plastics or asbestos, to which a split sleeve 2 having a flange 4 is to be permanently attached to form a branch pipe connection (see Specification 1,368,752), an elongated drill housing 28, 38 is secured to the flange 4 and has a threaded end, which mates with a tubular feed screw 40, through which a drill shaft 20 extends. Shaft 20 is driven by a high torque low speed compressed air motor 18, the torque reaction being transmitted by post 48 to bracket 50, through its sliding connection therewith. The drill bit is initially moved inwardly by abutment of the end of screw 40 with a shoulder 42 on shaft 20 to interengage the screw-threads. The motion is continued by rotating hand wheel 46, so that pilot bit 22 first penetrates the pipe wall, to centre the cutter 26. After cutting to a mark indicated on housing 38, the bit 22 retains the cut out part of the pipe, during retraction of the drill. When the apparatus is to be used for cutting a pipe 8 under fluid pressure, a sluice valve is interposed between flanges 4 and 29. Lip seal 34 prevents the fluid from rising up the drill shaft and a valved vent hole 52 is provided for flushing out the swarf.
Patent GB-919467-A (GB)
Title: Improvements in or relating to the aeration of liquids
Inventor: ALSOP CHARLES RIGHTON
IPC: C02F3/16
Filed: 1960-11-04
Abstract: 919,467. Agitation, aeration and circulation of liquids. SIMON-CARVES Ltd. Oct. 19, 1961 [Nov. 4, 1960], No. 37922/60. Class 86. An agitator for the surface aeration of liquids, especially bacterial effluents, comprises a spindle 10 to which is attached an inverted hollow cone 12 and a boss 11. Blades 13 are fixed to the underside of the cone and tangentially to the boss, and have a part 15 extending beyond the periphery of the cone. Deflectors 16 lying in the plane of the periphery of the cone and normal to the spindle 10 project to one side of the blade extensions 15. In operation, the agitator is immersed so that the deflectors 16 lie on or just above the surface of the liquid, and is rotated in their direction of projection. A toroidal circulation is set up in the liquid, which is progressively circulated through the air in a flat trajectory in the zone of surface turbulence. The preferred speed of rotation is 50-100 r.p.m. Specification 847,640 is referred to.
Patent GB-1036715-A (GB)
Title: Sound producing apparatus
Inventor: KEEN ALWYN SYDNEY
IPC: G10K9/22
Filed: 1961-10-24
Abstract: 1,036,715. Acoustic horns. SERVICE ELECTRIC CO. Ltd. Oct. 10, 1962 [Oct. 24, 1961], No. 38047/61. Heading H4X. [Also in Division G5] A sound producing device includes a cylinder 8 (Fig. 2) connected to a horn 1 (Fig. 1, not shown) by an air passage. A drainage chamber for rain or sea-spray surrounds the air passage and is defined by a tapered surface 10 of an intermediate member and a tapered surface of a cap 6. The water enters the drainage chamber through a circumferential port 13, and drainage holes 14, 15 lead from the chamber to the outside of the cylinder 8. Sound is produced by a diaphragm, or by reciprocation of a piston 16 in the cylinder 8. The horn 1 lies mainly horizontal and is swept back to provide a vertical inlet end which is surrounded by a horizontal flange 3.
Patent GB-994060-A (GB)
Title: Improvements in or relating to tanning extruded collagen tubes
IPC: B29C48/03
Filed: 1961-10-24
Abstract: The tanning of an edible extruded collagen casing comprising collagen fibrils includes the steps of causing the casing to contact an aqueous solution having a \rH of from 3.5 to 5.0 and containing 3%-18% aluminium ammonium sulphate, either 1%-4% lactic acid or 0.5%-4.2% citric acid, and 4%-18% ammonium sulphate, washing the casing with water and heat-curing it.  The washing may be effected with an aqueous solution of glycerol containing also either formaldehyde and sodium bicarbonate or powdered egg white and low viscosity (specified) carboxymethyl cellulose.  The tanned collagen casing produced, containing 0.3%-1.1% by weight of aluminium, may be shirred, stuffed and linked to form sausages. The changes in wet strength of the collagen casing after tanning and after washing with respect to time in the tanning bath, percentages of citric or lactic acid in the tanning bath, and \rH of the tanning bath are illustrated in Figs. 1 to 5 (not shown).  According to an example, fresh steer hides are washed in cold water at 13 DEG C. in a rotating drum for 10 to 24 hours.  After de-fleshing and hair removal, composite of five hides are cut into 1/2 to 4 square inch sections and reduced to pulp at a temperature below 20 DEG C. in a meat grinder.  The ground pulp is diluted with tap water at 16 DEG C. to give a smooth slurry containing 7.4% dry solids.  The slurry is treated with 2.4% lactic acid solution at a temperature below 25 DEG C. to form a homogenous mass of swollen collagen fibrils, which mass is filtered through a filter screen with openings having a diameter of 0.007 inch and then extruded in the form of a tubular casing in such a way as to impart some collagen fibril orientation transverse to the extrusion direction.  This may be partially accomplished by inflating the casing as it leaves the nozzle.  The extruded casing is coagulated in an aqueous ammonium sulphate bath containing 40% ammonium sulphate adjusted to a \rH of 7.0 with sodium hydroxide and is then pre-washed in 15% ammonium sulphate adjusted to \rH 6.5.  The casing is then tanned by treatment for 6 minutes with a solution containing 6% aluminium ammonium sulphate, 1% citric acid and 4% ammonium sulphate maintained at \rH 4.3. After tanning the casing is washed in tap water, is passed during 5 minutes through a bath containing 3.6% glycerol, 20 parts per million formaldehyde and 0.1% sodium bicarbonate, and is inflated and dried for 9 minutes in a rapid stream of air at 80 DEG C. and 8% relative humidity.  Finally, an aqueous suspension containing 15% powdered egg white and 10% glycerol is applied to the interior of the casing at the rate of 1.4 millilitre per foot of casing and the casing is again inflated and air dried.  This albumen-treated casing has an aluminium content of 0.41%.  Specification 994,059 is referred to.
Patent GB-1366302-A (GB)
Title: Apparatus for coring vegetables such as cabbages
IPC: A23N15/00
Filed: 1971-08-27
Abstract: 1366302 Apparatus for coring vegetables IRISH SUGAR CO Ltd 27 Aug 1971 [7 Aug 1970] 38126/70 Heading A4C Apparatus for removing the cores from cabbages etc., comprises a tube 14 upstanding from and disposed on a platform 11, said tube having an upper peripheral shearing or cutting edge (15) Fig.3 (not shown) and being mounted in a hole 13 in the platform 11, and an impact ram 16, 17 disposed vertically above the tube and reciprocable into and out of the tube. A single tube on a fixed platform may be used, but in a preferred embodiment a plurality of tubes is disposed in an annular array on a rotatable platform. The platform is driven by an indexing drive 12 which brings each of the tubes in turn to a work station beneath the impact ram and then holds the platform in that position whilst the ram is driven forcibly downward into the tube. The ram is then retracted and the platform rotated to bring the next tube to the work station. Cabbages are impaled, by the stalk end on the tubes at a feeding station in advance of the work station, and the platform rotated to bring the cabbage under the impact ram. As the ram is driven down it rips the core from the leaves and ejects the former through the hole 13. The ram may be fitted with radially extending cutters, not shown, to divide the leafy mass into sectors during the coring operation. In order to prevent these cutters from fouling the tubes they may be disposed well clear of the lower extremity of the ram or provided with notches to accommodate the tubes. The preferred ram and tubes have a circular cross-section and the ram has a plane operating face, however the cross-sections may be non-circular, and the ram face concave or convex. The tubes may be axially adjustable within the holes in the platform and a plurality of rams may be provided.
Patent GB-1338160-A (GB)
Title: Contact assembly for an electrical circuit breaker
IPC: H01H11/04
Filed: 1972-05-30
Abstract: 1338160 Making contact assemblies; riveting DORMAN SMITH SWITCHGEAR Ltd 30 May 1972 [14 Aug 1971] 38241/71 Headings B3A and B3U [Also in Division H1] A metal tip 17 is attached to a contact arm 11 by brazing the tip to the central portion 18 of a U-shaped web 16 and subsequently riveting the web to the arm in such a manner that the inner surface 20 of the central portion 18 is drawn into intimate contact with the arm by expansion of the rivet 27 at regions 22, 23. Arm 11 comprises two bars 12 secured together about a spacer 13 and a book plate spacer 14. The contact assembly is used in a circuit-breaker, the tip 17 being of arc-resistant material.
Patent GB-916589-A (GB)
Title: Sliding roof construction for a vehicle
IPC: B60J7/053
Filed: 1960-11-08
Abstract: 916,589. Vehicle sliding roofs. KASPER, P., LOTTE, A., and LEPPINK, J. G. Nov. 8, 1960 [Nov. 10, 1959], No. 38361/60. Class 108(1). A sliding roof panel comprises, an upper panel supporting frame 13, Fig. 2, having a forward trough 18 mounting a crank disc 19 operating locking rods 20, and a lower frame 28 which is movable up and down with respect to the frame 13 and its panel 14 and supports a stretched canopy 33, which frame 28 is sprung away from the frame 13 by a plate spring (not shown) and is suspended by rods 27 from rollers 26 connected by arms 24, 25, rods 22, 23, cranks 35, 37, and a sliding rod 34 to the frame 13. The frame 28 in the roof closed position is pressed and sealed against flanges 7, 8 of gutters 10, and also engages a sealing strip 9 in the double skinned roof of Fig. 1. The frame 13 is provided with spring skids 17 engaging fixed guides 12, and in the closed position seals against the edges of a hole 2 in the fixed roof and is locked by members (not shown) which are guided on the flanges 7 and are operated by the disc 19 and rods 20 to grip the flanges. The frame 13 is held in the raised and closed position by cranks 38 engaging cams 39, which cranks are also operated by the disc 19 through the slidable rod 34, the crank 35, and the rod 23. In operation, by rotating the disc 19 the frame 13 may be unlocked and its rear end lowered by rotation of the cranks 38, at the same time the rollers 26 lift the frame 28 so that the sliding roof may be slid beneath the fixed roof.
Patent GB-1098827-A (GB)
Title: Liquid ballistic for gyrocompasses
Inventor: FUKANO MICHIO
IPC: G01C19/38
Filed: 1965-09-08
Abstract: 1,098,827. Gyroscopic apparatus. TOKYO KEIKI SEIZOSHO KABUSHIKI KAISHA. Sept.8, 1965 [Sept. 14, 1964], No. 38373 / 65. Heading G1C. A liquid ballistic for gyrocompasses comprises a pair of pots (one shown in Fig. 5A) containing either mercury or fluoric resin oil, a pipe 9 interconnecting the pair of pots, and each pot being divided by partitions 12 into separate chambers, the chambers being interconnected by holes 13 restricting the flow of liquid between adjacent chambers. The partitions reduce the effects of shift in the centre of gravity of the liquid in the pots when the ship rolls or pitches. In alternative embodiments separate pipes may be used to interconnect the chambers in place of the holes 13, or a plurality of separate containers may be used instead of partitions in a larger container. An air pipe 10 also interconnects the two pots.
Patent GB-949391-A (GB)
Title: Process for the refining of silicon and ferrosilicons
IPC: C22B9/05
Filed: 1960-11-08
Abstract: Liquid Si is refined by injecting into it SiF or a compound capable of liberating SiF at the reaction temperature, i.e. 1300-1600 DEG  C. The preferred compound is sodium silico fluoride although according to one example aluminium fluoride is used.  The compound may be injected as a gas, a gaseous suspension of finely divided solid or in briquetted form.  The compound may also be decomposed prior to injection. A refractory oxide, e.g. silica, may be injected simultaneously with the compound to thicken the resultant slag.ALSO:Liquid FeSi is refined by injecting into it SiF or a compound capable of liberating SiF at the reaction temperature i.e. 1300-1600 DEG C. The preferred compound is sodium silico fluoride although according to one example aluminium fluoride is used.  The compound may be injected as a gas, a gaseous suspension of finely-divided solid or in briquetted form. The compound may also be decomposed prior to injection.  A refractory oxide, e.g. silica, may be injected simultaneously with the compound to thicken the resultant slag.
Patent GB-1165175-A (GB)
Title: A Method of Transmitting Data
IPC: H04L1/18
Filed: 1966-08-26
Abstract: 1,165,175. Digital transmission systems. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. 26 Aug., 1966 [28 Aug., 1965], No. 38453/66. Heading H4P. Data transmitted with check bits on reception produces a return service signal either indicating correct reception or incorrect reception. This can be received as either of the two signals or as a mutilated signal. If mutilated the data is reset together with a service signal of high redundancy. If a service signal indicating incorrect reception is received the data is retransmitted with either no service signal or a signal of low redundancy. Thus the receiver can identify a repeat due to a mutilated return signal, when the receiver is not expecting a repeat.
Patent GB-940471-A (GB)
Title: A lock for cycle tyre inflators
Inventor: PURDEN ROBERT HESKETH
IPC: B62J11/02
Filed: 1959-11-13
Abstract: 940,471. Clamp fastenings; key locks. JOSEPH LUCAS (INDUSTRIES) Ltd. Oct. 13, 1960 [Nov. 13, 1959], No. 38527/59. Headings E2A and E2B. A lock for use with a cycle and tyre inflator comprises a split collar 10 which is adapted to be mounted on the barrel of the inflator at that end thereof adjacent the handle; the split collar having its two ends adjustably connected together by screw threaded means 12, 13 whereby actuation of said means will adjust the separation of the ends of the collar there being also provided key-operable locking means embodying a pawl 17 which is engageable with teeth or serrations 15 provided on the screw threaded means so as to prevent contraction of the latter in a manner which permits of the ends of the collar moving relatively outwardly. As shown the clamping means consists of a screw 12 and a sleeve 13. The screw extends through an aperture in a lug 11 formed by bending up one end of the collar and engages the sleeve which is contained in a housing 2 attached to the other end of the collar. The sleeve is rotated by means of a knurled flange 14 to draw the ends of the collar together. The exterior of the sleeve 13 is provided with the teeth or serrations 15 and the housing 2 contains the pawl 17 which is urged by a spring 18 into engagement with the teeth or serrations 15. The outer end of the pawl is provided with a screw-threaded shank 19 which can be engaged by a screw-threaded key 20 to withdraw the pawl against the pressure of the spring 18. The teeth or serrations 15 are of ratchet formation so that although the collar can be tightened around the pump barrel it cannot be released without the use of the key 20 to withdraw the pawl 17 from engagement with the sleeve.
Patent GB-1444537-A (GB)
Title: Electrical switching circuit for a timer
IPC: H03K17/292
Filed: 1972-08-18
Abstract: 1444537 Semi-conductor switching circuits; radio receivers UNITED GAS INDUSTRIES Ltd 17 Aug 1973 [18 Aug 1972] 38546/72 Headings H3T and H3Q Current flowing through a load 12, e.g. a TV receiver, causes a voltage drop across silicon diode network 13 ... 16 sufficient to trigger a switch, e.g. triac 20, and energize motor 21. The motor forms part of a timer for indicating how long the load is energized.
Patent GB-1010320-A (GB)
Title: Improvements in or relating to a method and an apparatus for providing spools of rubberised fabric
Inventor: JENKINS DESMOND LAWSON
IPC: B29C67/24
Filed: 1960-11-10
Abstract: To overcome tackiness of freshly rubberized fabric and permit winding without an interlayer, the fabric is passed through a refrigerated enclosure before winding.  Fabric 1 is supplied from a calender around a roller 17, <PICT:1010320/C3/1> is looped around top and bottom rollers 11 in an upper and lower 12 and 13 series, every third roller 15 being driven through friction clutches.  The fabric is drawn over a coating roller 33 immersed in a bath 27 containing a suspension of sulphur in water. Excess sulphur is removed from the fabric by brushes 36 between nylon brushes 18, and then around rollers 19, 20 and 21.  A dancer roller 22 mounted on chains 23 controls the speed of rollers 15 and applies tension to the fabric 1. The fabric arranged in chevron formation.  A chamber 3 is supplied with air at ambient temperature and chambers 4 and 5 with cooled air by fans 9 and refrigeration units 10, Fig. 2 (not shown). The fabric is spooled without an interlayer upon delivery from the chamber 5.
Patent GB-949194-A (GB)
Title: Improvements in or relating to the recovery of hydrogen fluoride
Inventor: HARDWICK WILLIAM HORTON
IPC: C01B7/19
Filed: 1960-11-10
Abstract: <PICT:0949194/C1/1> Strong hydrogen fluoride is recovered from mixtures of hydrogen fluoride and water or water vapour, by forming the hydrofluoride of a water insoluble liquid tertiary aliphatic amine, separating the organic phase and heating it to decompose the hydrofluoride.  The amine may have a primary alkyl group of 6 to 10 carbon atoms attached to the nitrogen atom and a chain of at least 6 carbon atoms terminating at the nitrogen atom.  The amine used may be tri - n - hexylamine, tri - (2,4 - dimethylhexyl) amine, tri - (2 - ethylhexyl) amine, tri - (3,5,5-trimethyl hexyl) amine, tri-n-octylamine, tri-n-decylamine, also the commercial amines tri-iso-octylamine, tricaprylamine and tri-iso-decylamine, but the preferred amine is commercial trinonylamine.  The mixture of hydrogen fluoride and water wherein the hydrogen fluoride content may be not greater than the azeotrope, is fed through 2 into the head of a packed extraction column 3 operating at 60-70 DEG  C. against the flow of lean amine.  HF rich amine then passes from 3 into flash evaporator 6 operating at 100-200 DEG  C. at normal pressure in the absence of oxygen, where the water content of the amine is driven off and added to the aqueous phase feed after passing through a condenser 7.  The organic phase is passed through a heat exchanger 8 and heater 9 into a distillation column 10 operating in the absence of oxygen at a temperature at or just below the boiling point of the amine hydrofluoride and the distillate of strong hydrogen fluoride is condensed at 12.  A proportion of the hydrogen fluoride is recycled via pipe 13. The lean amine flows out from the base of the distillation column 10 through the heat exchanger 8, a cooler 16 and is fed back into the base of the extraction column 3 via pipe 17.  An alternative apparatus is disclosed with a diagram, for use when vapour phase extraction is operated, this differs in having a heater at the base of the extraction column but no means of recycling dilute hydrogen fluoride.
Patent GB-1072439-A (GB)
Title: Mountings for a system of co-axially arranged optical or optical and mechanical elements
IPC: G02B7/02
Filed: 1964-09-24
Abstract: 1,072,439. Moulding mountings for optical elements. MEOPTA, NARODNI PODNIK. Sept. 24, 1964 [Sept. 25, 1963], No. 38916/64. Heading B5A. [Also in Division G2] In a process for locating optical elements, e.g. lenses and iris diaphragms coaxially in a mounting, the elements are fixed to ring members which are accurately located in a mould in which the mounting is centrifugally cast. In an example, Fig. 7, the optical elements 11, 12, 13 are cemented by locating lugs 110, 120, 130 to rings 113, 125, 133 which with the parts 15, 16 define a mould carried by a member 14, and the thermosetting resin mounting 1. is formed by centrifugal casting. The resin contains a filler the specific gravity of which is less than that of the binding agent so that the inner surface of the mounting is dark and dull and the outer surface smooth and glossy. The amount of filler can be chosen so that the coefficient of thermal expansion of the mounting differs by not more than 10% from that of the optical elements.
Patent GB-996662-A (GB)
Title: Aminoplast resins
IPC: C08G12/00
Filed: 1963-10-03
Abstract: Aminoplast resins are prepared by treating with an aldehyde a material obtained by heating urea, to which may be added up to 50% of its weight of other aminoplast-forming substances, e.g. urea, dicyanodiamide, guanidine, dicyanodiamidine, alkyl- or aryl-guanimines, and thiourea, before or during the heating, at 130-200 DEG  C. until 1 part by weight of the product requires between 1 and 15 parts by volume of normal sodium hydroxide for complete solution. The condensation with aldehyde may be performed in aqueous solution, or without water, and in the presence, if desired, of mono- or polyvalent amines, alkanolamines or N-substituted s-triazones.  The alkylol groups formed may be etherified with mono- or poly-valent alcohols. The melt loses at least 14% of its initial weight and contains not more than 50% urea, together with biuret, melamine, ammeline, ammelide, cyanuric acid, and cyanuric acid triureide.  The proportions may be modified by adding a water-absorbing agent, e.g. silica gel, anhydrous Na<\>z2SO4, or ZnCl2.  The products are miscible with other aminoplasts, from e.g. melamine, guanamine, s-triazones and ethyleneurea and with alkyd resins.  Uses.-Textile finishing, impregnation of paper or sheets for laminates, adhesives, binding agents.ALSO:Wet tear strength is imparted to paper by aminoplast resins prepared from aldehydes and the product from healing urea at 130-200 DEG C. until 1 part by weight of the product requires 1 to 15 parts of 1 N sodium hydroxide for solution.  Other aminoplast-forming substances may be added before or during heating, and the aminoplast product may be mixed with other aminoplast resins, or with alkyol resins, and may be etherified (see Division C3).
Patent GB-1125965-A (GB)
Title: Zinc coating and a method of applying same
IPC: C22C18/00
Filed: 1965-09-13
Abstract: 1,125,965. Coating with metals; zinc alloys. INLAND STEEL CO. Sept. 13, 1965 [Sept. 15, 1964; Aug.27, 1965], No.39054/65. Headings C7A; C7D and C7F. A zinc alloy containing between 1 and 4% by weight of magnesium is used for coating ferrous articles by hot dipping, vapour deposition, electrolytically or powder metallurgy methods. The alloy may also contain from 0À05 to 5.0% by weight of aluminium. The article may be cooled rapidly after hot dipping by a cooling fluid e. g. gaseous nitrogen. Vapour deposition may take place on a continuously moving strip. The following bath compositions are described (% by weight).
Patent GB-849773-A (GB)
Title: Welded sleeve joints connecting pipes made of synthetic plastics
IPC: B29C65/00
Filed: 1956-12-21
Abstract: 849,773. Seaming. g . FARBWERKE HOECHST AKTIENGESELLSCHAFT VORM. MEISTER, LUCIUS & BRUNING. Dec. 21, 1956 [Dec. 22, 1955], No. 39128/56. Class 42 (1). [Also in Group XXVIII] In connecting synthetic plastic pipes by a welded sleeve joint, the weld extends between the opposing surfaces of the sleeve and the pipe ends and over the end faces of the pipe ends. In Fig. 4, welds 4, 5 connect a sleeve 7 to pipe ends 6; in Fig. 5, the ends of a sleeve are tapered at 9 and the end faces 11 of the pipe ends 10 are conical; in Fig. 6, the pipe ends 15 are enlarged and the sleeve 12 is internal; in Fig. 7, the internal sleeve 13 is tapered at 18 and the end faces 20 of the pipe ends 19 are conical. Suitable materials and welding temperatures are given.