baber/WOPTO huggingface dataset:
Patent GB-329638-A (GB)
Title: Improvements in or relating to containers, for example, containers enclosing electrically fusible elements, liable to be subjected to relatively large internal fluid pressures
IPC: H01H85/40
Filed: 1928-11-21
Abstract: 329,638. Cruttwell C. E. Nov. 21, 1928. Fusible cut-outs.-A container for a fusible cutout comprises a fluid-tight inner chamber having walls which are electrically non-conducting and heat resistant, and an outer internal-pressure-resisting metal casing hermetically enclosing the inner chamber, the space between the chamber and outer casing being filled with oil or other liquid. The walls of the inner chamber are sufficiently flexible to transmit pressure through tne liquid. Provision is, also made for taking up the pressure due to liquid expansion with temperature increase. In one construction, Fig. 1, the inner chamber, which may be elliptical in section, comprises a corrugated tubular member 12 provided with flanges 20 secured in the sleeves 14 by plugs 18 and discs 16. Connection caps 22 provided with slits 24 are located in metal end-plates 30 by insulating sleeves 36. The outer casing comprises a steel cylinder 26 lined with insulation 28 and is provided with a plunger 40 operating a signal when the fuse blows. The slits 24 cause a throttling of the oil located between the fuse chamber 10 and casing 26 and prevent endwise fracture. In a modification, a diaphragm is mounted in the connection cap at one end, the inner side of the diaphragm being in direct communication with the fuse chamber. A smaller volume of oil is employed and it is confined to a tortuous passage. In a further modification, a double diaphragm is located centrally of the fuse element which has a central portion of restricted cross-section, thus localizing the first effects of an explosion. In other constructions, the diaphragms are replaced by spring pistons within cylinders. Another construction, Fig. 6, comprises the addition of a spring-loaded ram 66 which exerts a pressure on the oil filling in a direction counter to that caused by the explosion. In a further construction, Fig. 8, an oil reservoir 102 is mounted in the casing 26 and is provided with a capillary passage 106 which permits changes of oil volume with temperature. The cover 108 hermetically seals the reservoir and maintains' the oil under high pressure. In modifications, the chamber 10 may be corrugated and the oil reservoir open to the atmosphere. Porous plugs may be employed instead of the capillary passages. Gas pressure may be maintained above the liquid by an auxiliary supply of air or gas at high pressure. According to the first Provisional Specification, calcium carbonate may be enclosed within the casing, the carbon dioxide liberated under heat assisting to extinguish the arc.
Patent GB-1235115-A (GB)
Title: Package binding machine
Inventor: DORNEY JOHN
IPC: B65B13/22
Filed: 1967-08-16
Abstract: 1,235,115. Package binding machine. POWER INDUSTRIES Ltd. 15 Aug., 1968 [16 Aug., 1967; 18 July, 1968], Nos. 37689/67 and 34212/68. Heading B8C. A package binding machine comprises a noseplate 18 to support the overlapping ends of a tape during binding, sealing means 26 to join the ends by friction welding, the nose-plate 18 being movable between the operative position shown in which it supports the overlapping ends during sealing thereof and a retracted position providing clearance for ejection of the sealed joint. The apparatus also comprises a frame 14, pneumatically operated grippers 15, 19, a guide block 30 having a guide slot 33 for the tape and connected through a lost-motion linkage (44, 45, Fig. 6, not shown) to nose-plate 18, and severing means 42, 43. Binding tape, e.g. of polypropylene, is fed by the feeding and tensioning apparatus (11, 12, Fig. 1, not shown) through aperture 15a of gripper 15, between cutters 42, 43, through slot 33, between gripper 19 and nose-plate 18 and either manually or automatically around the package, before being passed under the free end of gripper 15, under cutter 43 and against stop 32 of relief 31 of block 30, gripper 15 then being actuated to hold the tape and simultaneously remove block 30 by means of pin 41, Fig. 5, on bell-crank lever 35, connected to block 30. After tensioning the tape by means (11-12), gripper 19 is actuated, maintaining the tension in the loop. Vibratory block 26 is also actuated to weld together the ends of the loop of tape by means of a high frequency rubbing action, and the sealed loop is severed from the tape supply by cutter blades 42, 43. After raising grippers 15, 19, the nose-plate 18 is retracted by cylinder (NP, Fig. 3, not shown), the sealed loop sliding off the nose-plate 18.
Patent GB-323610-A (GB)
Title: Improvements in the manufacture of means for joining electric conductors
IPC: H02G15/04
Filed: 1928-11-21
Abstract: 323,610. Dicker, S. G. S., (Naamlooze Vennootshap Electriciteits Maatschappij Electrostoom). Nov. 21. 1928. Moulding screw-threads.- A cap for screwing upon the twisted joined ends of a number of electric conductors comprising a cap 2 of insulating material moulded upon a helix 7 of wire is made in a mould 4 fitted with dies 3, 4, one of which, 4, carries a mandrel 6 on which the helix 7 is threaded. The plastic material 2 is retained under pressure in the mould until sufficiently hardened and the die 4 is then withdrawn. The moulding is then expelled by the die 3 and baked.
Patent GB-1490298-A (GB)
Title: Telecommunication exchanges
IPC: H04Q3/545
Filed: 1975-08-19
Abstract: 1490298 Testing automatic exchanges STANDARD TELEPHONES & CABLES Ltd 19 Aug 1975 34416/75 Heading H4K An automatic exchange, e.g. of the TXE4 type, whose control includes a plurality of program-controlled processors, is tested with aid of a test program which is stored in a program store of one of the processors. The program causes a plurality of paths through part at least of the switching network of the exchange to be set up and then causes one or more tests to be performed on each path to ascertain if it has been set up correctly. If it has not been set up correctly, a print-out indicating the details of the faulty path is effected. The testing is carried out during installation of the exchange.
Patent GB-1414212-A (GB)
Title: Mains lead interference suppressor devices
IPC: H04B1/10
Filed: 1973-07-19
Abstract: 1414212 Interference suppressors; filters SIEMENS AG 19 July 1973 [4 Oct 1972] 34426/73 Heading H3U [Also in Division H1] An interference suppressor comprises a metal housing 1 which is separated by two partition walls 2 into three chambers, the outer chambers containing connecting terminals 10 and the inner chamber containing chokes 4, 5 and a pair of capacitors 8, 9 mounted adjacent each partition wall. The terminals 10 are connected to the neutral, live and earth conductors of a mains lead, the capacitor 9 being connected between the neutral and live conductors by leads 6 and 7 respectively whilst the capacitor 8 is connected between the neutral and earth conductors.
Patent GB-782023-A (GB)
Title: Improvements in or relating to braking apparatus for use with colliery and other like winding engine control gear
IPC: F16D65/14
Filed: 1954-11-29
Abstract: 782,023. Winding machinery brakes. BLACK, G. A. Nov. 21, 1955 [Nov. 29, 1954], No 34488/54. Class 103 (1). In a brake system for colliery and other like winding engine control gear, particularly for the Koepe-type winder, wherein the brake shoes are operable by spring means and released by fluid pressure, means such as the pre-set relief valves V3, V4, V5 and V6 are arranged to automatically prevent the pressure in the brake cylinder C from falling below a predetermined value on actuation of an emergency trip mechanism TS associated with a by-pass valve VI. In normal operation, the pressure produced by pumps P1, P2 acts directly on the brake cylinder C and is varied by pressure produced by the hand or foot operated pressure relief valve V2 acting through ports a and b of the trip valve V1. When the emergency trip mechanism TS is operated, ports a and c of the valve V are connected so the pump pressure is passed back to the reservoir RT but pressure is maintained in the cylinder C in accordance with whichever one of relief valves V3 to V6 is selected by the solenoid-operated pilot valves V3a to V6a to obtain a chosen pressure according as to whether the equipment is operating for personnel or coal, or ascending or descending. In another embodiment, Fig. 3, a direction valve DV operated mechanically from a friction assisted change-over unit FAC automatically selects valves V3, V5 or V4, V6, the effect of the valve V2 being applied on the brake cylinder side of the valve DV through a non-return valve NRV. In yet another embodiment, the invention is modified to apply to winders of the loose and clutched drum type.
Patent GB-1269643-A (GB)
Title: Internally-meshing gear pumps and motors
Inventor: CROWTHER HAROLD
IPC: F04C2/10
Filed: 1968-07-19
Abstract: 1,269,643. Internally-meshing gear pumps and motors. JOSEPH LUCAS (INDUSTRIES) Ltd. July 7, 1969 [July 19, 1968], No.34497/68. Heading F1F. An internally-meshing gear pump (or motor) comprising an internally-toothed ring gear 17, Fig. 1, mountedfor rotation in a housing 10, a meshing pinion 16 mounted for rotation on an axis parallel to and spaced from the ring gear axis and a crescent-shaped member 27 therebetween having inner and outer arcuate faces engaging the pinion and ring gear teeth respectively, includes fixed and movable side-plates 19, 20, Fig. 2, pressing against opposite axial end-faces of the pinion and ring gear with the crescent-shaped member fixed with respect to the fixed side-plate 19 and slidable with respect to the movable side-plate 20 and a resilient sealing element 34 extending in a peripheral groove around at least part of the crescent-shaped member to sealingly engage a complementary crescent-shaped hole in the plate 20. When extending only part way round the member 27 the sealing element 34 is located at that end of the member 27 adjacent the high-pressure port 29. The high-pressure port and low-pressure port 28 are bifurcated and communicate respectively with apertures 31, 30 in the side-plates 19, 20 on opposite sides of the zone where the pinion 16 and ring gear 17 are inter-engaged. Grooves 32, 33 extending from the aperture 30 on opposite sides of the member 27 prevent cavitation by continuously allowing liquid to enter the spaces between the inter-engaging teeth at the radially inner extreme of the spaces. The plate 20 is secured to a bell member 21 which is acted upon by pistons 23, 24, 25 subjected to the pressure obtaining at the high-pressure part to urge the plate 20 into sealing engagement with the axial end-faces of the pinion and ring gear and the pinion and ring gear in turn in sealing engagement with the plate 19.
Patent GB-884544-A (GB)
Title: 6-methyl steroid compounds
Inventor: BARTON SUZANNE PATRICIA
IPC: C07J5/00
Filed: 1959-10-12
Abstract: The invention comprises (1) 6b  : 17a -dihydroxy-6a  : 16b -dimethylpregn-4-ene-3 : 20-dione and 17a -acetoxy-6 : 16b -dimethylpregna-4 : 6-diene-3 : 20-dione and the corresponding 16a -methyl steroids; and (2) a process for the preparation of steroids of the formula <FORM:0884544/IV (b)/1> (wherein R is a hydrogen atom or a methyl group) by treating a 6-methyl- or 6 : 16-dimethylprogesterone or -iso-progesterone with acetic anhydride to form a 3 : 20-diacetoxy-6-methyl-(or -6 : 16-dimethyl-) pregna-3 : 5 : 17(2)-triene, oxidising this with a per-acid to give a 20-acetoxy-17a  : 20a -epoxy-6b -hydroxy-6a -methyl-(or -6a  : 16-dimethyl-)pregn-4-en-3-one, saponifying this to give 6b  : 17a -dihydroxy-6a -methyl-(or -6a  : 16-dimethyl-)pregn-4-ene-3 : 20-dione and acylating the 17a -hydroxy group of this, when concomitant hydration of the 6b -hydroxyl group occurs to give the desired steroids.  Examples are given.  6a  : 16b -Dimethylprogesterone and 6a  : 16b -dimethyl-17-iso-progesterone are prepared by reducing 3b -acetoxy-6 : 16-dimethylpregna-5 : 16-diene-20-one to 3b -acetoxy-6 : 16b -dimethylpregn-5-en-20-one, saponifying this to 6 : 16b -dimethyl-3b -hydroxypregn-5-en-20-one and oxidizing this by the Oppenauer method to give a mixture of the required products, which can be separated.  Specification 841,003, 850,423 and 870,286 are referred to.ALSO:Pharmaceutical compositions contain, as essential active ingredient, a 17 a -acyloxy-6:16 - dimethylpregna - 4:6 - diene - 3:20-dione.  Tablets containing 17 a -acetoxy-6:16a -dimethylpregna - 4:6 - diene - 3:20 - dione are described.  The active materials are stated to have progestational activity and to inhibit ovulation.  Specifications 841,003, 850,423 and 870,286 are referred to.
Patent GB-1239874-A (GB)
Title: Endless conveyor
IPC: B65G17/42
Filed: 1969-07-09
Abstract: 1,239,874. Endless conveyers. CARL SCHENCK MASCHINEN-FABRIK G.m.b.H. 9 July, 1969 [11 July, 1968], No. 34573/69. Heading B8A. Buckets 3 are mounted between a pair of endless driven belts 4 by cross-bars 1 comprising a series of parallel, spaced steel rods 2 embedded in rubber. The cross-bars 1 are vulcanized to the belts 4 and may be vulcanized or bolted to mounting brackets 7 7 on the buckets. In an alternative embodiment (Fig. 3b, not shown) the rods 6 diverge in the direction of the belts 4.
Patent GB-1082078-A (GB)
Title: Iridium alloys
Inventor: BETTERIDGE WALTER
IPC: C22C5/04
Filed: 1965-08-12
Abstract: An alloy consists of commercially pure Ir and 0.1-2% Nb.  The alloy may be used for making crucibles (particularly for melting semi-conductor material), springs and electrodes for sparking plugs.
Patent GB-1204459-A (GB)
Title: Process for the production of 4,4'-dihydroxytetraphenyl methane
Inventor: BEHR ERICH
IPC: C07C37/18
Filed: 1969-07-09
Abstract: 1,204,459. 4,4<SP>1</SP>-Dihydroxytetraphenyl methane. DYNAMIT NOBEL A.G. 9 July, 1969 [11 July, 1968], No. 34665/69. Addition to 1,184,289. Heading C2C. 4,4<SP>1</SP> - Dihydroxytetraphenyl methane is prepared by heating pure dichlorodiphenyl methane and at least 90% pure phenol in a molar ratio of 1: 2-2À4 in an inert solvent having a boiling point in the range of 80-200‹ C. and which is substantially anhydrous and non-hygroscopic, the heating of the reactants being affected by slowly raising the temperature of the mixture to the boiling point of the inert solvent and completing the reaction at the same temperature. Toluene, xylene and chlorobenzene are suitable solvents. The product may be purified by recrystallization from a C 1-4  alcohol, acetone, methyl ethyl ketone, dioxane or tetrahydrofuran or mixtures thereof, optionally containing up to 100% by volume of water providing the solubility therein permits.
Patent GB-467428-A (GB)
Title: Manufacture of splinterless glass
IPC: C09D131/04
Filed: 1935-12-16
Abstract: The intermediate layer of compound glass comprises a polyvinyl ester prepared as described in Specification 462,165 by polymerizing the monomeric ester in the presence of a peroxide of a fatty acid having at least 4 carbon atoms.  Softening agents may be added.  For example two glass plates are coated with an ethyl acetate solution of the polyvinyl acetate obtained as described in example 1 of Specification 462,165 and dibutyl phthalate, dried, and united by heat and pressure.  A mixed polymer similarly obtained from vinyl acetate and vinyl butyrate may replace the polyvinyl acetate.  Alternatively, a film cut from a block of the polyvinyl acetate plasticized with dibutyl phthalate may be adhesively secured between glass sheets. The Specification as open to inspection under Sect. 91 describes also the use as softening agents of phenol and alkyl esters of phosphoric acid, e.g. tributyl phosphate, phthalates, e.g. dibutyl phthalate, camphor, castor oil, and condensation products of ether-di-carboxylic acids with polyhydric alcohols.  Vinyl acetate may be polymerized with dibutyl phthalate and dioleyl peroxide or with ethyl acrylate and distearyl peroxide. Specification 447,131 is referred to.  This subject-matter does not appear in the Specification as accepted.
Patent GB-762379-A (GB)
Title: Packaging cigarettes and the like
Inventor: METZ LESTER A
IPC: B65B61/18
Filed: 1953-12-15
Abstract: 762,379. Forming and filling pull-tab packages. TAMARIN, B. J. Dec. 15, 1953, No. 34958/53. Class 94(1). An apparatus for forming and filling packages and supplying and attaching a pull-tab to each package, comprises a wheel 5, Fig. 1, carrying a number of hollow formers 8 which are moved clockwise in steps by the wheel through stations numbered I to XII. A laminated paper-and-foil web B is fed via rollers 12, 13 and 14 and a shear 15 to present a wrapper to each former 8 on reaching station XII. The successive wrappers are formed into pouches by known means during their movement through stations I to VII. Mounted on a second wheel 4 are pockets 7 filled with cigarettes from a hopper 6. The wheels 4 and 5 rotate in opposite directions in synchronisation and when a former 8 reaches station IX, a pocket 7 registers therewith and the cigarettes therein are transferred to the interior of the former 8 and its pouch. by a reciprocating plunger. On,reaching station XI, the cigarette filled pouch has a pull-tab P, Fig. 21, adhesively attached to it, and thereafter each filled pouch is ejected from its former 8 leaving said former free to receive a fresh wrapper on re-reaching station XII. Pull-tab forming and applying mechanism. The material P<SP>1</SP>, Fig. 1, for the pull-tab is preferably a thin layer of cellulose acetate with a thermotropic, and preferably thermoplastic, adhesive coating on one face. The material P<SP>1</SP> is fed from a roll P<SP>11</SP> would with the thermotropic surface innermost to minimize exposure to atmosphere. As the material is continuously advanced, it is intermittently cut by a shear 36, Fig. 8, and the resulting pull-tab is gripped by jaws 37 and 38, the latter having been opened and closed by the movement of a cam 46 past a roller 45. The disc 40 is then turned step by step to invert the tab and move it to a position such that the tab P is applied, as shown, in face to face relation with one side face of the pouch C and with one edge near or at the mouth of the pouch, the thermotropic face of the tab being against the pouch. A heated finger 55 then presses the section of the tab P that is adjacent the mouth of the pouch to seal it to the pouch, the opposite end of the tab being held spaced from the pouch. A reciprocating plunger then moves forward to force the cigarettes well into the base of the pouch and in doing so forces the pouch and cigarettes from the former 8 to means completing the tucking and folding of the end flaps to form a packet as in Fig. 21. The flaps are secured in their folded position by a stamp S. During the initial passage of the wrapping material between the rollers 12 and 13, the web B is crush-cut diagonally to form two converging slits a<SP>1</SP>, by blades fixed to the roller 12 and coacting with the yielding periphery of the roller 13. These slits a<SP>1</SP> are so disposed that on pulling the tab P the flaps unfold and tear in the manner illustrated in Fig. 23, to form a refoldable spout.
Patent GB-1015978-A (GB)
Title: Handle for cooking utensils
IPC: A47J45/10
Filed: 1964-08-26
Abstract: 1,015,978. Handles for cooking utensils. E. LEWERTH. Aug. 26, 1964 [Aug. 30, 1963; Aug. 31, 1963], No. 35062/64. Heading A4A. A handle for cooking pots, and covers therefor, comprises a hollow metal handgrip 3 open at both ends and metal support bars 2 secured to the side of the handgrip near the pot and having a cross-sectional area less than the maximum diameter of the handgrip so that heat converted to the handgrip is minimal and cooling air flows through the handgrip. The handgrip and bars may be integral, the bars being apertured at 4 or the grip and bars are welded together. In further modifications the grip has a longitudinal end to end opening or longitudinal slots or ribs and the bars are hollow, circular in cross-section or forked, or each is formed by two thin parallel bars. A single bar may be secured midway along the handgrip.
Patent GB-772086-A (GB)
Title: Improvements in machines for tensioning and sealing metal band about packages
Inventor: PARKES STANLEY
IPC: B65B13/22
Filed: 1953-12-06
Abstract: 772,086. Wire &c. strainers. GERRARD INDUSTRIES, Ltd. Dec. 16, 1954 [Dec. 6, 1953], No. 35079/53. Class 45. [Also in Group XV] In a machine for sealing together the overlapped ends of a flat metal banding 22 tensioned around a package A by a tensioning drum (not shown), by deforming a clip round the ends of the band the latter is gripped between a pair of stationary toothed grippers 2, 3 detachably fixed in spaced relationship to a sealing block 1, and a complementary pair of toothed grippers 4, 5, detachably fixed to a sliding operating member and slidable over the grippers 2, 3. All the grippers can therefore be readily removed for re-furbishing their teeth which are so inclined as to permit free sliding movement of the parts of the band on tensioning but to give a firm grip on a free end when the band is fully tensioned. Specification 749,561 is referred to.
Patent GB-798945-A (GB)
Title: Improvements in or relating to electric discharge devices
IPC: H01J9/08
Filed: 1954-12-03
Abstract: 798,945. Making filaments for electron discharge tubes; destructible cores. GENERAL ELECTRIC CO., Ltd., JONES, D. J., and GOSSLING, B. S. Nov. 28, 1955 [Dec. 3, 1954], No. 35096/54. Classes 83 (2) and 83 (4). [Also in Group XL (a)] A filament of refractory metal, such as silica tungsten wire, of substantially flattened zig-zag shape for use in an electric discharge device, is made by winding the wire upon a ductile metal mandrel, pressing the mandrel and wire so as to flatten it to the required shape and chemically removing the ductile metal. The flattened filament is then heat treated to set it. The silica tungsten wire is preferably first wound on a tungsten wire mandrel and is then removed and placed on a mandrel of annealed copper wire. After flattening, which may take place at a temperature between 200 ‹C. and 400 C., the copper is removed by dissolving in nitric acid. The flattened filament is then heat treated in a hydrogen atmosphere at 1400‹ C. for ten minutes. The mandrel or the spiral may be heated before or during the pressing so as to remove residual stresses. The tungsten filament is preferably for use as a cathode in an X-ray tube. The flattened filament is disposed within a groove formed in a machined nickel cathode head, with the filament disposed parallel to the face of the head opposite a copper anode. An example is given of the dimensions of a particular filament.
Patent GB-884981-A (GB)
Title: Improvements relating to finned tubes
Inventor: MAUGHAN GEORGE THOMAS
IPC: F28F1/12
Filed: 1957-11-11
Abstract: 884,981. Making heat-exchanger tubes and nuclear fuel elements; drilling. FAIREY CO. Ltd. Feb. 11, 1959 [Nov. 11, 1957], No. 35129/57. Classes 83 (2) and 83 (3). [Also in Group XIII] A finned tube for use as a heat-exchanger of a can for a nuclear fuel rod is formed from an alloy tube having integral longitudinal fins 11, 11A and helical fins 12 which protrude radially further than the fins 11, 11A. The helical fins fit into keyhole slots 13, 13A in the longitudinal fins and are welded to the tube either at each end or centrally. To cut the enlarged portion at the base of the slots a cable 20A having a cutting head 21A is rotated whilst drawing the head through the base of the slots. A guide fits into the slots to support the cable and guide the head. In a modification the integral fins are helical and longitudinal fins are slotted into the integral fins. The enlargement at the base of the slots is then formed by a drill 32 having a long shank 31, a guide 35 being employed. Specification 884,980 is referred to. Reference has been directed by the Comptroller to Specification, 816,124.