baber/WOPTO huggingface dataset:
Patent GB-1456080-A (GB)
Title: Method and apparatus for separation of waste material from a moulded article
IPC: B29C49/50
Filed: 1974-12-18
Abstract: 1456080 Blow moulding; waste removal KAUTEX - WERKE REINOLD HAGEN GmbH 18 Dec 1974 [24 Dec 1973] 54690/74 Heading B5A Separation from a blow moulded article of waste material, produced when the blow mould pinches together and welds the ends of a parison, is improved by closing the mould during the first phase of pinching at a relatively slow speed to obtain a strong weld and during the second phase at a relatively higher speed to reduce the thickness of the material separating the waste from the article to a minimum or to zero. The speed of closing during the second phase of pinching may be the same as the mould closing speed before the beginning of the pinching stage, i.e. before the mould halves engage the parison. A parison 15 is extended from a die 12 fed by two extruders 13a, 13b between blow mould halves 10a, 10b mounted on members 11a, 11b suspended from wheeled carriages 30, 31 and moved by hydraulic or pneumatic cylinders 21a, 21b or by electric devices. A blowing nozzle 20 is raised to project into the parison, as shown, or may project from above. As the mould closes a cam 35 attached to member 1 la operates a fluid control valve 36 to vary the fluid feed to both cylinders 11a, 11b. Alternatively (Fig. 2, not shown) a potentiometer (150) may signal the actual position to a comparator (147) fed with a signal representing the desired position which generates a correction signal for controlling the valve (136) in the fluid flow to the cylinders. Alternatively the change of speed is determined by a timed controller, particularly when the mould closure is to be interrupted for pre-blowing of the parison, e.g. the flow of fluid may be shut off at that point (when the speed of mould closing falls to zero) and then started again so that the speed increases gradually through the first and second phases of pinching.
Patent GB-1248079-A (GB)
Title: Apparatus for the collection of buoyant foreign matter
Inventor: WAREN FRANK ARTHUR OAKLEY
IPC: E02B15/04
Filed: 1968-11-18
Abstract: 1,248,079. Scavenging vessels. F. A. O. WAREN. 16 Feb., 1970 [18 Nov., 1968], No. 54707/68. Heading B7A. [Also in Division F1] Apparatus for collecting buoyant foreign matter, e.g. oil, from water, comprises a floating tank 10 with an open or perforated bottom and an inlet tract with impellers 35, (see Division F1), for drawing the oil and water into the tank, the oil collecting in the top of the tank, and the water passing through the bottom. The impellers are located at each end of a transverse trough having a front wall 25, the depth of immersion of which is controlled by floats 27 on booms 26. Floating booms with depending skirts extend in front of the tank to guide foreign matter into the trough, Fig. 6 (not shown). Baffles 30 beneath impeller outlets 21 deflect the oil towards the top of the tank. Buoyancy is provided by a deck 14, e.g. of expanded polystyrene. The tank has a bow 28, air vents 16, 29, guard rails 17, and a cabin 15 housing a motor driving impellers 35 and a pump 31 for discharging the oil. The pump inlet extends into a dish member 40. The tank may comprise a plurality of glass fibre sections flexibly connected. The apparatus may be propelled by motor 32 or may be towed. Two tanks may be coupled together to form a catamaran with the space between the tanks used for collecting seaweed removed from the trough by rotating belts with projecting fingers. The impeller drive shaft may have fingers for breaking up lumps of oil. The impellers have flexible blade tips to prevent damage by hard objects.
Patent GB-1381358-A (GB)
Title: Reinforcing structures for plastics resin bonded laminae
IPC: B29C70/86
Filed: 1972-11-28
Abstract: 1381358 Laminates D A VOISEY 28 Nov 1972 54817/72 Headings B5N and B5A [Also in Division B7] A reinforcing structure for resin bonded laminae comprises a plurality of rigid members 1 bonded endwise to a flexible porous backing sheet 2 in a regular geometric pattern, the side or sides of each member being inclined at an angle other than 90 degrees to the plane of the backing sheet. The cross-section of the members which are suitably bonded at an angle of about 80 degrees to the plane of the backing sheet may be circular, elliptical, polyhedral having from three to twelve sides or of an irregular amoebic shape, the preferred cross-section being hexagonal. The height of the members which may be solid or may have an inner cavity, and which may be made from wood, metal, paper, plaster, cement, clay, polyurethane or polyvinyl chloride, foam rubber or a cured epoxy or polyester resin preferably incorporating a light-weight filler material may be constant over the cross-section of the structure or may vary to provide a corrugated or undulating surface contour. The backing sheet may be a thin flexible open weave textile material, e.g. woven glass fibre rovings or a woven polyester or nylon mesh; alternatively it may comprise a woven, welded or expanded metal, e.g. steel mesh. The members may be resin bonded to the backing. The reinforcing structure may be made by fabricating a single member from a suitable material, forming a cast of plaster, cement, clay, resin or rubber from this original, producing from the cast a number of replicas of the original in for example a polyester or epoxy resin, positioning the replicas on a suitable flat surface in the geometric pattern, producing a casting of this arrangement and using the resultant master mould to produce the final structure by filling the mould with resin, laying the backing material on to the surface of the mould, surplus resin being absorbed by the backing material, and curing the resin to produce a rigid or semi-rigid structure which is rendered sufficiently flexible to be rolled either by the application of a fine spiked roller to the backing material or by folding the material between the members. The Specification describes the construction of a boat hull from outer skins of glass mat reinforced plastics and a structure of the invention.
Patent GB-1439776-A (GB)
Title: Annular elements for textile machinery
IPC: B29D23/00
Filed: 1973-11-28
Abstract: 1439776 Textile apron INDUSTRIE PIRELLI SpA 28 Nov 1973 [29 Dec 1972] 55165/73 Heading F2P An annular element of elastomeric material for use in textile machinery, e.g. as an apron, comprises a layer of non-woven, synthetic fibre, e.g. of polyamide or polyester, fabric having a weight range between 10 and 50 g./m.<SP>2</SP> wound to form two or more layers, the winding being impregnated with a cross-linked elastomeric composition, e.g. nitrile or polyurethane rubber. The impregnated fabric winding may have an outer layer of elastomeric material. An additional layer of elastomeric material may be bonded to the inner part of the element. A process for manufacturing annular elements of this type comprises the steps of: impregnating a layer of non-woven fabric with a solution of cross-linkable elastomeric composition; winding at least two layers of the impregnated fabric on to a mandrel; applying a layer of crosslinkable elastomeric composition and subjecting the assembly so formed to heat and pressure to obtain cross-linking. The elastomeric layer may be applied by extrusion or by winding a thin calendered sheet over the impregnated fabric or applied as a preformed tubular element which is fitted over the impregnated fabric. An inner layer for the annular element may be formed by applying a layer of cross-linkable elastomeric composition to the mandrel before winding the layer of impregnated fabric.
Patent GB-1234707-A (GB)
Title: Electrical signal recording apparatus
IPC: H04N1/16
Filed: 1969-11-11
Abstract: 1,234,707. Facsimile recorders. SANDERS ASSOCIATES Inc. 11 Nov., 1969 [12 Nov., 1968], No. 55204/69. Heading H4F. A helical drum recorder comprises a cylindrical drum 42 having a longitudinal axis of rotation, a helical wire 40 having a plurality of turns fixed in relief about the surface of the drum and a plurality of linear writing bars 44 disposed in a plane parallel to the longitudinal axis of the drum, each one being associated with one single complete turn of the wire and electrically isolated from its neighbouring bars. In operation each bar receives an input signal which is recorded on electrostatic recording paper 54 passed under tension between the helical wire and the writing bars, a switching system being provided to sequentially activate the writing bars. The paper is fed from a supply roll 56 and passes over an earthing rod 58; after recording it may pass over a viewing platen 60 and be taken up on roller 62. To preclude the build up of residue on the writing bars they are vibrated along their longitudinal axes at a frequency above that of the highest signal frequency to be recorded by piezoelectric or magnetostrictive crystals. The switching system is an electrooptical system, Fig. 4 (not shown), comprising a chopper wheel revolving in synchronism with the drum 42 and having peripheral opaque and transparent regions to chop a beam of infra-red light passing to a photodetector which provides electrical switching. The slope of the helical wire around the drum may be constant, or it may vary where it is required to record parts of the information on different scales. In this case the signal amplitude must be varied directly in accordance with the writing speed, the control being provided by varying the size of the apertures in the chopper wheel.
Patent GB-1504507-A (GB)
Title: Flameproofing process
IPC: D06M11/72
Filed: 1973-11-29
Abstract: 1504507 Flame proofing process ALBRIGHT & WILSON Ltd 27 Feb 1975 [29 Nov 1973] 55535/73 Heading D1P In order to flameproof a cellulosic substrate the substrate is impregnated with an aqueous solution comprising a mixture of the ammonium salts of a plurality of polyphosphoric acid species. The mixture is produced by reacting an aqueous solution of phosphoric acids containing from 80-86% by weight of phosphorous pentoxide with ammonia or a basic derivative thereof, such as ammonium hydroxide or ammonium carbonate, at a temperature of 15-70‹C and at a pH of 4-12. As a result the spectrum of polyphosphate species present subtantially corresponds to that of the polyphosphoric acids in the acid solution. The aqueous solution of phosphoric acids in water may be prepared as also described in Patent No. 1460710. The polyphosphoric acid species are present in such solutions and are in equilibrium. After impregnation the substrates may be dried and then desirably heat cured. Cellulosic substrates include textiles such as cotton, linen, jute, hessian, regenerated cellulosic materials such as rayon, paper, timber including particle boards such as plywood, chip, fibre and straw boards, and hemi-cellulosic materials such as straw, parchment and papyrus. Textiles made from a mixture of cellulosic materials and other types of fibres e.g. polyester fibres may be used. To impregnate textile materials 1-20% by weight of the ammonium polyphosphate mixture is used, the materials being dried at 80‹-120‹C for 2-40 mins. and cured at 150‹-170‹C for 2-15 mins. To impregnate timber and timber products 1-30% by weight of the phosphate mixture is used, the substrates being dried at 30‹-80‹C for 12-20 hours and then cured at 80‹-110‹C for 4-8 hours. The aqueous solution also contains carbamic acid derivative containing at least two amino groups per molecule to improve wash fastness and leach resistances the ratio of the polyphosphate to carbamic acid species being in the range 1:1 to 3:1, useful additives are urea, gaunidine and dicyandiamide. The aqueous solution may also include ammonium bromide for the treatment of textiles, ammonium sulphate for the treatment of paper, starch as a solution thickener, and fungicides e.g. borax and boric acid for timber. The textiles can be impregnated using soaking, padding or spraying techniques while non textile substrates may be impregnated using soaking, dipping or spraying techniques.
Patent GB-1496766-A (GB)
Title: 5-substituted-alkyl-8-hydroxycarbostyril derivatives and production thereof
IPC: A61K31/47
Filed: 1974-12-27
Abstract: 1496766 Carbostyril derivatives OTSUKA PHARMACEUTICAL CO Ltd 27 Dec 1974 [22 May 1974 (2) 13 June 1974 11 Nov 1974 (3) 4 Dec 1974] 55897/74 Heading C2C Novel compounds I (R<SP>1</SP> is 1-4 C alkyl and R<SP>2</SP> and R<SP>3</SP> are H, 1-4 C alkyl, 4-6 C cycloalkyl or aryl-1-4 C alkyl; or -NR<SP>2</SP>R<SP>3</SP> is a 5- or 6-membered, substituted or unsubstituted heferocyclic ring containing 1 or 2 N, O or S atoms as heteroatoms) and acid addition salts thereof are prepared by catalytic hydrogenation of a compound II or by dehydrogenation of a compound VII or by dealkylation of a compound VIII (R is 1-4 C alkyl). Compounds II, VII and VIII are claimed in Specifications Nos. 1,496,874; 1,496,767 and 1,496,770 respectively. Pharmaceutical compositions, useful as bronchodilators, peripheral vasodilators and antihypertensives, comprise a compound I together with a suitable carrier or diluent.
Patent GB-1180300-A (GB)
Title: Collapsible Gas-Conducting Probe
Inventor: ZEISSIG ORTWIN MANFRED
IPC: G01N1/22
Filed: 1968-11-28
Abstract: 1,180,300. Gas analysis. O.M. ZEISSIG. Nov.28, 1968[Nov.30, 1967], No.56493/68. Heading G1 B. A collapsible probe for use in taking gas samples for analysis from inaccesible places e. g. in mine . workings comprises a number of rigid tubular sections 1 with enlarged socket portions 3 enabling the sections to be connected end to end to form a rigid probe, and a flexible tube 2 passing through the sections 1 and forming a passage for the gas to be sampled. The section 1A is fitted with a head 5 with lateral orifices 7 allowing collection of a gas sample and the end of the sections 1 remote from the socket portions 3 are bevelled as at 4, to enable easy fitting of the section within the adjoining socket preferably by pulling on the flexible tube 2. A collar 8 retains the sections 1 on the tube 2, and the ends of each section 1 may be notched longitudinally to allow passage of the tube 2 when sections 1 are folded together in the collapsed state of the probe, to provide a compact arrangement. In alternative embodiments the sections 1 are disposed inside the tube 2 and held to form a rigid probe by sleeve members outside the tube 2, or the sections 1 may be inter-connected at their ends by short sections of flexible tube, outer sleves again being provided for holding the sections rigidly in alignment when desired.
Patent GB-1426279-A (GB)
Title: Device for closing and opening the pulse contacts in telephone dials
IPC: H04M1/34
Filed: 1973-12-06
Abstract: 1426279 Impulse generators INTERNATIONAL STANDARD ELECTRIC CORP 6 Dec 1973 [23 March 1973] 56512/73 Heading H4K Lost motion is provided in a telephone dial mechanism by rotating a member in frictional engagement with an eccentric, which member engages a number of stops in turn and stops rotating on engaging each stop until it is released therefrom due to a lateral movement caused by the eccentric. The member eventually rotates to engage a spring set when rotation of the eccentric causes lateral motion of the member to operate the impulsing contacts. Similar arrangements are disclosed in Specifications 1,239,038 and 1,426,280. During setting an eccentric constituted by an integral assembly of a shaft 14, end member 13 and an off-axis cylinder 3 is rotated anticlockwise and the lost motion member 15 rotates with the eccentric until a projection 4 on arm 17 engages a stop 5. On release the eccentric and the member rotate clockwise until projection 4 on arm 17 engages a stop 11 and the member stops rotating. Continued rotation of the eccentric causes a lateral outward movement of the projection 4 to release the member which recommences to rotate. A similar operation occurs when projection 4 engages a second stop 9 except that an inward lateral motion causes the release. On contacting a third stop 10 an outward lateral motion again causes the release and eventually the arm 17 engages a stop 12. Continued rotation of the eccentric causes an up and down lateral movement of the arm 17 to cause the impulsing contacts to operate.
Patent GB-1413828-A (GB)
Title: Heat resistant containers
IPC: B65D8/16
Filed: 1972-12-08
Abstract: 1413828 Laminates GOODYEAR TIRE & RUBBER CO 8 Dec 1972 [4 Jan 1972] 56703/72 Heading B5N [Also in Division B7] A container, e.g. an aircraft fuel tank, capable of withstanding temperatures of up to 350 F. consists of an inner layer 10 of polyurethane elastomer of 2-30 mils thickness adhered to at least one ply 11 of polyester fibre fabric coated on surface 11a with nitrile rubber which is adhered to a polyamide-based barrier layer 13 of thickness 0À25-5 mils by means of a tie coat 12 of nitrile rubber compounded with a phenolic resin, the outer side of the barrier layer being adhered by a tie coat 14 of nitrile rubber compounded with phenolic resin to at least one ply of polyester fibre fabric coated on the surface facing tie coat 14 with nitrile rubber and coated on the outside thereof with polyurethane elastomer 16. The layers may be built up on mould 9 of plaster of Paris, cardboard or rigid frangible foam coated with a parting agent, e.g. watersoluble protein glue or polyvinyl alcohol resin, and cured in an autoclave with live steam at about 240 F. for approximately 200 minutes, or in hot air or nitrogen for the same time and temperature. Woven polyester cloth may be dipped in an isocyanate prior to coating on one surface with the nitrile rubber. The barrier layer which provides a barrier to the loss of hydrocarbon fuel in liquid or vapour form may be a mixture of alcohol-soluble polyamide resin, epoxy resin and epoxy resin catalyst, preferably comprising 65-90% by weight of polyamide and 35-10% by weight of epoxy resin. The polyurethane layers 10 and 16, adhesive layers 12 and 14 and barrier layer 13 may be coated on to the mould, e.g. by spraying, dipping, or painting. The coated polyester fabrics may be applied in the form of strips with at least one lapped seam, the seams being cemented using a cement comprising butadiene-acrylonitrile rubber.
Patent GB-1360659-A (GB)
Title: Heating device
IPC: H05B7/00
Filed: 1971-12-09
Abstract: 1360659 Starting arc in arc welding apparatus BRITISH TITAN Ltd 13 Oct 1972 [9 Dec 1971] 57155/71 Heading H2H [Also in Division H5] An arc heating device comprises main electrodes 1, 2 and an intermediate electrode 3 insulated from the main electrodes by insulating rings 4, 5. Gas is introduced via inlet 7, 8, 11, 12. On starting the device an initial arc is struck between cathode 2 and the electrode 3. Gas, e.g. oxygen is then introduced into the chamber 1 and the arc is transferred for a high proportion of the time to the anode 1. When the current flow in the intermediate electrode has fallen to a low value, e.g. less than 200 m.a., a control circuit arranges to cut off the intermediate electrode when the current flow next falls to zero so stabilizing the arc between anode and cathode. Gas is then also introduced into chamber 6. Fig. 2 indicates a suitable control circuit comprising a trigger circuit 23 for energizing a thyristor 13, the trigger circuit having a stabilized D.C. power supply 24, and a mercury switch 2 and a leakage resistor 26. A current flow sensing device 18 is provided to activate thryistor cut-off and protection against excess current and voltage peaks in the thyristor is provided respectively by choke 17 and the circuit comprising resistors 20, 21 and capacitor 22. The mercury switch may be solenoid or manually operated in response to the current flow sensing device. The thysistor is mounted on a cooled block 14 using water containing a nucleating agent. The anode 1 may have a conical bore having a cone angle of 1-30 degrees and the arc may be rotated by a magnetic field (0À01-4À0 tacho.) from a coil around the cathode. The cathode may be a solid rod. A field may be provided around the conical bore to increase the gas enthalpy. Helical and/or tangential gas flow may be used and list of electrode materials is provided. The device may be used for welding, cutting, or producing high velocity gas flows or supplying heat to chemical reactions, e.g. oxidation of metal halides (including silicon) to metal oxides, formation of metal carbides by reactions between metal halide and a source of carbon usually in the vapour phase.
Patent GB-1134059-A (GB)
Title: Digital synchronising system
IPC: H02P5/52
Filed: 1966-12-22
Abstract: 1,134,059. Automatic control of speed. WOODWARD GOVERNOR CO. Dec.22, 1966 [Feb.1, 1966 (2)], No.57469/66. Heading G3R. The frequency of a first train of pulses is matched to that of a second train by a system in which logic circuitry detects the occurrence of two pulses in one train without an intervening pulse in the other train and produces a correcting pulse signal in an "increase" or "decrease" channel as appropriate. The pulses 49, 50 are produced by shaping the sinusoidal output of tachogenerators 42, 44 coupled to master and slave aircraft engines 20, 22, and are applied as set and reset signals to flip-flop 60 and to AND gates 62, 63. If the pulses occur alternately the AND inputs are never energized at the same time, but if, e.g., two pulses 49 occur in succession the second pulse finds the flip-flop still in its "set" condition so that AND 55 passes a signal which when amplified causes a stepping servomotor 39 to move one step. This would be in an increase direction and would rotate a nut 36 to shorten a throttle cable 28 controlling the slave engine 22. Two successive pulses 50 would similar cause a step in the decrease direction. To prevent constant alternate correction when the speeds are nearly equal the output of the AND gates may be connected to a similar flip-flop and AND gate arrangement so that correction is only made if the double pulse occurs on two consecutive occasions, thus creating a "dead band". Fig.8 (not shown). To prevent arbitrary correction if pulses in each train occur simultaneously they may first be applied as two inputs to an AND gate (80, Fig.8) which causes a one shot multi-vibrator (81) to produce an inhibiting pulse of finite length (t1) which prevents further AND gates (84, 85) from passing the pulse trains, which have been slightly delayed, to the flip-flop circuits. The servomotor may additionally receive signals from the system for keeping the relative phase of the signals constant which forms the basic subject matter of Specification 1,134,060.