baber/WOPTO huggingface dataset:
Patent GB-961796-A (GB)
Title: Improvements in the cold extrusion of metals
IPC: B21C23/08
Filed: 1962-11-08
Abstract: 961,796. Extruding; billet piercing. FRITZ MARTI & FILS. Nov. 8, 1962 ]Dec. 29, 1961], No. 42270/62. Headings B3H and B3P. A method of forming a hollow workpiece, particularly of alloy steel, by cold backward extrusion comprises forming depression 9, 10 in opposite ends of a blank 8, Fig. 3, placing the blank upon a second blank 4, depositing solid lubricant in one of the depressions 9 piercing and backwardly extruding the blank 8 and simultaneously forming the end depressions in the blank 4, and removing the web 12, Fig. 4. The blanks, provided with a phosphate coating and a liquid lubricant carrying a powdered lubricant such as tungsten or molybdenum bisulphide, are disposed in a die 1 whose bottom is an ejector 2 with a projection 3 for forming the depression 9. Extrusion is effected by a plunger 5 which pierces substantially through the top blank and also forms the concave depression 10. The bottom blank is then reversed and placed upon a new blank in the die. A solid lubricant such as tungsten or molybdenum bisulphide is placed in the depression 9 and the blank is backwardly extruded. The web 12 is extruded forwardly below the lower surface of the blank and is finally severed. Specification 897,015 is referred to.
Patent GB-1069303-A (GB)
Title: A photocell device for controlling refrigerator defrosting
IPC: F25D21/02
Filed: 1965-10-06
Abstract: 1,069,303. Defrosting. P. C. PERALE, A. CHINAGLIA, L. C. BIANCHI, G. BIANCHI, and A. PERALE, [trading as CHINAGLIA DINO ELETTROCOSTRUZIONI S.A.S.]. Oct. 6, 1965 [Oct. 10, 1964], No. 42499/65. Heading F4H. A defrosting control device comprises a light or infra-red ray source, a photo-cell and means adapted to energize defrosting means when the rays normally impinging on the photo-cell are interrupted or attenuated by ice. As shown, the light source 3 and photo-cell 4 are mounted on opposite sides of, and aligned with a hole 7 in, the wall 6 of a freezer compartment. When the hole is blocked by ice the photo-cell energizes a relay which in turn actuates a timer controlling a resistance defrost heater. In a modification (Fig. 3, not shown) the device is mounted on a finned evaporator (15) the light path being constituted by the spaces between the fins (16). In this case defrosting is effected by a water spray.
Patent GB-1124840-A (GB)
Title: Crimpable composite polyamide filaments
IPC: D01F8/12
Filed: 1966-09-23
Abstract: 1,124,840. Crimpable composite polyamide filaments. ASAHI KASEI KOGYO K.K. 23 Sept., 1966 [24 Sept., 1965 (2); 8 April, 1966], No. 42565/66. Heading B5B. A composite filament which develops crimps when subjected to heat treatment comprises a component consisting of poly-#-capro-lactam and a component consisting of a copolyamide synthesized from #-caprolactam and a salt of ethylenediamine and a dicarboxylic acid having at least 6 carbon atoms such as sebacic acid or terephthalic acid. The crimps which may be imparted to the filaments are described as being "water-reversible crimps" an expression which is defined as meaning crimps which substantially disappear when the crimped filaments are immersed in hot water, e.g. water at 50‹ C., but reappear when the filaments are taken out of the water and dried in air. The ethylenediamine-dicarboxylic acid salt content of the copolyamide may be 3 to 97 mole per cent when the dicarboxylic acid is sebacic acid and 3 to 85% when it is terephthalic acid. The dicarboxylic acid, if aliphatic, may be adipic, azelaic, sebacic, or decamethylene dicarboxylic acid. The composite filaments are formed in the usual manner by simultaneously melt-spinning through the or each hole of the spinneret the two components of the filaments, the spinneret being of a type designed to form composite filaments of either the side-by-side type or the eccentric sheath-core type, preferably the former. The ratio of the proportions by volume of the two components of the composite filament may range from 2:8 to 8:2. The filaments are stretched at either atmospheric or elevated temperatures. If the filaments have been cold-stretched they are thermally treated under a tension of less than 10mg./d., preferably from 0 to about 1mg./d., to develop crimps. If they have been hot-stretched, they are thermally treated while under a tension of less than 5mg./d., preferably from 0À5 to 1mg./d. The thermal treatment is effected at a temperature of from 60‹ C. to at least 10‹ C. below the melting point of the filament component having the lower melting point, preferably, at a temperature of from 80‹ to 120‹ C. The time of the thermal treatment may range from 5 minutes to several hours, preferably from 30 minutes to 1 hour. For the thermal treatment air, steam, water or other liquid may be used as the heating medium.
Patent GB-1040558-A (GB)
Title: Process for making polyurethane foam
IPC: C08G18/00
Filed: 1964-10-19
Abstract: Polyurethane foams made from polyether polyols and organic polyisocyanates in the presence of chlorinated alkanes boiling at - 20-80 DEG  C. contain additionally 0.01-5% by weight based on the blowing agent of one or a mixture of two or more of the epoxy compounds:  an alkalene oxide, and epoxy resin or a glycidyl ether of an aliphatic compound.  Specified chlorinated alkanes are methylene chloride and chloroform and specified epoxy compounds are alkylene oxides having 2-18 C atoms, epoxy novolac resins, the diglycidyl ether of bisphenol A and butyl glycidyl ether. Various aliphatic and aromatic polyisocyanates are listed. Polyether polyols may have hydroxyl numbers of at least 500 and have 2-8 hydroxyl functions. 2-40% by weight based on the polyol and polyisocyanate of the blowing agent may be used.
Patent GB-986568-A (GB)
Title: Improvements in or relating to sluice valves
Inventor: MCDONALD JOHN RONALD
IPC: F16K3/18
Filed: 1960-12-10
Abstract: 986,568. Valves. FAIRFIELD-ROWAN Ltd. March 7, 1962 [Dec. 10, 1960], No. 42596/60. Heading F2V. A parallel slide gate valve has a gate assembly comprising a central member 6 which is moved transversely of the slow passage 2, 3 by the screwed stem 9, this member 6 having links 12, 13 pivoted thereon at 14, 15 on opposite sides of the member 6 and the other ends 16, 17 of the links, which extend across the member 6, pivotally carrying opposed closure members 4, 5, the arrangement being such that the closure members are urged against opposed seats 22, 23 when stops 4A, 5A on the closure members abut stops 20, 21 on the valve body. Cam surfaces (not shown) may be provided for engagement by the pivot pins 14 to 17 as the gate is withdrawn to ensure that the valve members are eased off their seats.
Patent GB-1525229-A (GB)
Title: High-voltage circuit-interrupters
IPC: H01H33/835
Filed: 1974-10-01
Abstract: 1525229 Fluid-blast circuit interrupter REYROLLE PARSONS Ltd 30 Sept 1975 [1 Oct 1974 31 Jan 1975] 42654/74 and 4317/75 Heading H1N A fluid-blast circuit interrupter comprises a pair of tubular contact members 10 and 11 one of which 10 carries a sliding contact 18 to bridge the gap between them and also act as a valve to allow a blast of pressurized fluid into the gap when it is moved out of contact with the member 11. Arcing contacts 14, 16 are provided within the tubular members at least one of these 16 being arranged to move and draw an arc after the sliding contact 18 has opened so that a blast of pressurized fluid, e.g. SF6, will be directed on to the arc and will subsequently remove the arcing products, e.g. through the interior of the hollow members and out through filters. The arcing contacts are preferably provided with arc-resistant tips and the fixed tubular members have insulating arc resistant nozzles the internal bores of which diverge downstream of the blast to improve electric field strength. The gas blast may be provided by a buffer-type piston coupled to sliding contact 18, or by various forms of separate pressurizing arrangements. The sliding contact is preferably an insulating tube containing contact fingers 19 of conductive material. The insulating nozzles 12, 13 may contain venting holes. The opening and closing of the contacts may be effected by a linkage including a lost-motion connection so that the sliding contact 18 will open before the opening of the arcing contacts commences. (Fig. 1A, not shown). Several units, arranged in series in a fluid filled housing may be coupled to a common actuator and the operating rod for each unit may also carry a valve to allow pressurized fluid to enter at the appropriate movement (Fig. 1, not shown). It is stated that this fluid could be a liquid, e.g. oil. In an alternative embodiment (Figs. 5 and 6, not shown) the ends of the tubular fixed contact members are formed with outer cylindrical sleeves having projecting finger portions to take the arcing, which occurs when the sliding contact is withdrawn, and so avoid damaging valve sealing rings provided in channels on the inner surface of the sliding contact. In this embodiment the insulating nozzles are lengthened and are of PTFE to improve dielectric characteristics without lengthening the gap opening.
Patent GB-1247171-A (GB)
Title: Use of silicon carbide
Inventor: KORNDORFER LUDWIG
IPC: E01C7/35
Filed: 1968-09-09
Abstract: 1,247,171. Marking road surfaces. ELEKTROSCHMELZWERK KEMPTEN G.m.b.H. 9 Sept., 1968, No. 42807/68. Heading E1G. [Also in Division C3]  Silicon carbide particles, suitably between 0.1 and 15mm are incorporated in road surfaces for warning notices and road demarcation lines either by applying them in admixture with a bituminous road .binder or by rolling them into a bituminous road surface.
Patent GB-1271197-A (GB)
Title: Container
Inventor: ARLITT WILLIAM HARRY
IPC: B65D6/00
Filed: 1970-09-07
Abstract: 1,271,197. Containers. W. H. ARLITT. 7 Sept., 1970, No. 42819/70. Heading B8P. A container for jet aircraft brakes 21 comprises hingedly connected top and bottom sections and an arm 26 carrying a hold-down part 30 and hingedly connected to one upright of a frame 23, 24 mounted in the bottom section. The hold-down part 30, is fixed to the lower end of a stem 34 threaded into a hollow rod 36 which itself is threaded into the arm 26. The threads between the rod 36 and the arm 26 are of larger pitch than those between the rod 36 and the stem 34. The part 30 is first lowered into engagement with the brakes by rotating the part 30 and is then clamped in position by rotating the hollow rod 36 by means of handles 38. An elongated extension 32 of part 30 projects through the opening in the brakes and through an opening in a locating part 47 fixed to frame part 24 to inhibit lateral movement of the brakes. The front part 26b of the arm 26 is latched to one upright 23 at 28 and the top part 26c of the arm 26 is received in a channel (41) in the top of the container. The inside of the container is reinforced by metal sheets (43, 46) and inner layers (49, 44) at the top and bottom walls, and by a frame 19 secured to the top section and projecting into the bottom section in the closed position. The container is cushioned against shocks by a recessed rubber strip 18 at the junction of the top and bottom sections, a rubber strip 42 in the channel (41) in the top section and a rubber pad (45) beneath the brakes 21. The top and bottom sections are secured together by latches (14). Hand holes (15) are formed in the bottom section.
Patent GB-1141906-A (GB)
Title: Improvements in or relating to hydraulic extrusion presses
IPC: B21C23/21
Filed: 1966-09-26
Abstract: 1,141,906. Extruding. FIELDING & PLATT Ltd. 26 Sept., 1967 [26 Sept., 1966], No. 42870/66. Heading B3P. An hydraulic metal extrusion press has means for removing the extruded product 1 from the die 8 after severing the discard 2, comprising means 14 disposed downstream of the die assembly, for gripping the product and means 16 for moving the die assembly rearwardly. The die 8 and its bolster 6 are mounted in a die carrier 5 slidable axially in a die slide 4 and biased forwardly by springs 10. After severing the discard 2 by a shear blade, the product 1 which has passed out to a run-out table, is gripped by the serrated edges 15 of two or more hydraulically actuated grippers 14. The die assembly on carrier 5 is then moved rearwardly by two hydraulic rams 16 to push the die from the extruded product. In another embodiment, Fig. 3 (not shown), the grippers 14 are spaced from the bolster 6 and the rams 16 act through push-rods (17).
Patent GB-1534489-A (GB)
Title: Electrolytic cell
IPC: G01F23/16
Filed: 1977-10-20
Abstract: 1534489 Detecting electrolyte levels SOLVAY & CIE 20 Oct 1977 [20 Oct 1976] 43706/77 Heading C7B A diaphragm (as shown) or mercury cathode cell for brine electrolysis comprises an inlet pipe 8 for electrolyte, a space 25 for collecting a gas produced e.g. chlorine for removal via pipe 10, and a device for detecting a critical minimum level 14 of electrolyte in the cell enclosure e.g. anode compartment 9, comprising a tube 15 communicating with the enclosure with its lower end 16 at the level and its upper end joined into a pipe 17 connecting a source of pressurized gas 18, e.g. air, nitrogen, argon or chlorine, to a detector of differential pressure 19 communicating with the space via pipe 26. The detector may be coupled to means for actuating an alarm and/or a circuitbreaker.
Patent GB-1347557-A (GB)
Title: Process for applying protective coatings to metal articles
IPC: B05D3/10
Filed: 1971-09-21
Abstract: 1347557 Coating metal articles MECANOBUNDY GmbH 21 Sept 1971 [21 Sept 1970] 43913/71 Heading B2E [Also in Division C7] A process for coating a metal article to give protection against chemical and mechanical action comprises galvanising the article by electrodepositing a homogenous zinc coating with a fine crystalline structure, forming a chromate layer thereon in a chromic acid solution having a pH value below 2, rinsing off the chromic acid solution residues with water, coating the chromated article in wet condition with synthetic plastics material of non-waxy character by means of a dispersion of said material; and then heat treating the so coated article at a temperature of not less than 100C and sufficient to reduce hexavalent chromium to trivalent chromium and, if such curing be necessary, to cure the plastics material coating. The article may be a small pipe or several joined lengths of such pipes used in vehicle brake systems, made of iron or copper coated iron, The tubing is first degreased and pickled before being galvanised in a bath containing sulphuric acid having a pH of 3.3 and 170g  5g zinc, 1.5g  0.3g aluminium, 6g  lg boric acid, 3.3g  0.3g zinc chloride, the electrolysis being performed at 50 to 55C at a current density of 40 to 100 A/dm<SP>2</SP>. In order to provide a fine crystalline zinc coat, organic additives are also present. The galvanising is repeated twice before the tubing is run into a chromic acid solution with a pH of 1.5, in which chloride ions are present in a proportion of less than 1 mole chloride ions per mole of chromic acid. Thereafter the tube is rinsed and a plastics material is coated onto the still wet tube from an aqueous dispersion (e.g. by dipping), the plastics material being, for example, epoxide resins, phenol resins, styrene polymers, acrylic resins and other non-waxy plastics. A continuous length of tube may be fed through apparatus for carrying out the above process, arranged as a production line.
Patent GB-1012448-A (GB)
Title: Improvements in or relating to apparatus for cleaning data storage cards
IPC: G06K21/08
Filed: 1962-11-22
Abstract: 1,012,448. Cleaning data storage cards. RANK-XEROX Ltd. Nov. 22, 1962 [Nov. 22, 1961], No. 44187/62. Heading A4F. Apparatus for cleaning data storage cards having microfilm frames mounted therein comprises a reciprocting member 31 for advancing the cards to rollers 71, 72 which feed them between rotating brushes 51, from which they are passed by further feed rollers 71, 72 into a receiving compartment 120. Electrostatic charges on the cards are removed by electrodes mounted on two inductors 90 arranged respectively above and below the path of travel of the cards, and which ionize the air adjacent thereto by an alternating electric field. Air is drawn through the cleaning compartment 50 by a fan (not shown), air filters 117 being provided above and below the brushes 51.
Patent GB-1071674-A (GB)
Title: Processes of photographic development
IPC: G03C1/42
Filed: 1963-11-11
Abstract: 1,071,674. Developing photographic silver halide materials. EASTMAN KODAK CO. Nov. 11, 1963 [Nov. 13, 1962], No. 44328/63. Heading G2C. An exposed photographic silver halide emulsion layer is developed by treatment with an alkaline solution in the presence of at least one photographic silver halide developing agent and, as development promoter, a compound of the general formula:- wherein R is H, Cl or Br, X is oxygen or represents H and OH both attached to the carbon atom, R1 is H, alkyl of 1-5 carbons or aryl and R2 is oxygen or NH. Specified compounds are tetronic acid, alpha-chlorotetronic acid, alpha-bromo-tetronic acid, D-mannosaccharo-1:4:3:6-dilactone and D-glucuronolactone. The promoter may be present in the emulsion layer or in the alkaline solution. One developing agent may be present in the emulsion layer (e.g. 1-phenyl-4-methyl-3- pyrazolidone) and another in the alkaline solution, or the developing agent may be present solely in the emulsion or in the alkaline solution.
Patent GB-1002337-A (GB)
Title: Process for the catalytic oxidation of waste gases
IPC: B01J37/04
Filed: 1961-12-13
Abstract: Exhaust gases are purified by passage through a bed of catalyst in the form of particles of a refractory inorganic oxide base comprising alumina impregnated with platinum, the bed consisting of a mixture of a minor portion of particles containing a relatively high percentage by weight of platinum, i.e. more than 0,1% by weight per particle distributed uniformly throughout a major portion of particles containing a lower percentage of platinum.  The minor portion with relatively high percentage of platinum becomes operative at a lower temperature than the bulk and serves to lower the temperature at which the whole bed becomes operative.  The catalyst mixture may contain more than two fractions, the minor fractions having successively lower percentages of platinum.  Silica, titania, zirconia or hafnia may be added to the alumina.  As an example, 10% of the catalyst mixture consists of particles with 1,5% weight of platinum therein and 90% is of particles with 0,05% by weight of platinum.  In a three fraction mixture 2% of particles have from 0,75-2% platinum, 20% have from 0,20-0,25% platinum and 78% have from 0,013-0,051% platinum and in a four fraction mixture 1% of particles have from 0,75-2% platinum, 7% have from 0,3-0,5%, 28% have from 0,08-0,1% and 64% have 0,05%.  The alumina particles may be formed by the oil drop method described in Specification 693,648.  The prepared particles may have a halogen incorporated therein by soaking in e.g. ammonium fluoride or zirconyl chloride and then impregnated with platinum by soaking in chloroplatinic acid.  The platinum may be combined with other metals in mixtures such as platinum-iron, platinum-cobalt, platinum-nickel, platinum-palladium, platinum-copper-lithium-cobalt, platinum-cobalt-copper, copper-cobalt-nickel - platinum, platinum - palladium - cobalt, manganese-platinum, platinum-cobalt-manganese, and lithium-platinum-cobalt.  Specification 693,648 is referred to.
Patent GB-976660-A (GB)
Title: Brazing alloys and the production of ceramic-to-ceramic or ceramic-to-metal joints
Inventor: RHYS DAVID WADE
IPC: C04B37/02
Filed: 1962-11-26
Abstract: A brazing alloy, particularly for the production of ceramic-to-ceramic or ceramic-to-metal joints, has the following percentage composition: .Pd.30-75 .Ti.2- 9 Ni and impurities, the remainder. The impurities may include Co, Fe, Cu up to 1 each and C up to 0.1.  With a Ti content of up to 5, the alloy may be used in the form of a wire ; above this, in powder form.
Patent GB-1156016-A (GB)
Title: An Improvement in or relating to Knives.
Inventor: SCOTTING ALFRED EDWARD
IPC: B26B9/02
Filed: 1965-10-21
Abstract: 1,156,016. Knives; hand tool handles. A. E. SCOTTING, and C. M. HAVENHAND. 19 Oct., Oct. 1966 [21 Oct., 1965], No. 44667/65. Heading B4B and B4K. A knife comprises a handle 10 and a blade 12 moulded integrally in a synthetic plastics material, a serrated cutting edge of the blade being provided by a stainless steel insert 14 which has holes 16 so that it is keyed in position during moulding of the knife. The knife may be for cutting steak or cheese or be for table use.
Patent GB-992051-A (GB)
Title: Improvements relating to water supply systems for shower baths or hand basins
Inventor: FORD JAMES FERGUSON
IPC: E03C1/044
Filed: 1962-11-27
Abstract: 992,051. Water supplies. SANTON Ltd. Nov. 27, 1963 [Nov. 27 1962], No. 44720/62. Heading E1X. A water supply system for shower baths or hand basins comprises an electrically-ariven pump 3 whose inlet 4 is connected to a 'supply cistern 1 and its outlet 5 to an electrically heated tank 6 having a shower outlet 12 controlled by a valve 14, a pressure relief valve 15 on a by-pass 8 from the pump outlet 5 permitting the water to be pumped back into the cistern when the valve 14 is closed. An anti-vacuum valve 9 prevents back-syphonage from the tank to the cistern. The tank is provided with thermostatically controlled immersion heaters 7 and a relief valve 13.
Patent GB-1387969-A (GB)
Title: Fastening element adapted for tightening to predetermined torque
IPC: F16B33/04
Filed: 1973-09-25
Abstract: 1387969 Applying predetermined tensions to bolts ELCO INDUSTRIES Inc 25 Sept 1973 [1 Dec 1972] 44814/73 Heading F2H The head 16 of a bolt 15 to be tightened to a predetermined torque comprises a base portion 17 and a shank extension 21 integral with the threaded shank 26, and a plate member 19 mounted on the shank extension 21 and shaped to receive a tightening tool, the end of the extension 21 being riveted over at 23 to retain the member 19, and interfitting parts 24, 25 (Fig. 3) or 40, 41 (Fig. 9) on two of the three components comprising the base portion 17, the plate member 19, and the shank extension 21 holding the member 19 against rotation relative to the shank extension 21 until the tightening torque applied to the member 19 exceeds the predetermined value, the member 19 thereafter being able to slip round on the shank extension 21. As shown, the member 19 and base portion 17 are both hexagonal, the portion 17 being of smaller radial extent, to receive a thin spanner for loosening the bolt. In Fig. 3, a central bore 20 of the member 19 has splines 24. The shaft extension 21 is initially plain, matching splines 25 being formed on it as the member 19 is forced on to it and its end is riveted over. The splines 25 shear at their bases at the predetermined torque. In Fig. 9, rings of radial teeth 40, 41 on the member 19<1> and base portion 17<1> respectively are interengaged. At the predetermined torque the camming action of the teeth raises the member 19<1> axially, permanently deforming the riveted end 23<1> so that the member 19<1> is free to rotate on the shank extension 21<1>.
Patent GB-1014246-A (GB)
Title: Improvements in and relating to plug valves
Inventor: FLOYD TERENCE JOHN
IPC: F16K5/04
Filed: 1963-11-13
Abstract: 1,014,246. Valves. AUDCO Ltd. Nov. 2, 1964 [Nov. 13, 1963], No. 44823/63. Heading F2V. A rotary plug valve comprises a plug 11 formed with a helical groove 16 which cooperates with a pin 17, so that on rotating the handle 18 through 180 degrees the plug rotates and moves axially to align a passage 15 therein with the passage 9 in the valve body. The plug also carries seal rings 12, 13 and 14, the latter of which lies in a plane parallel to the axis of the passage 15 so that in the open position of the valve its plane is parallel to the passage 9.