baber/WOPTO huggingface dataset:
Patent GB-1441914-A (GB)
Title: Cooking a-paratus
IPC: A47J37/12
Filed: 1972-07-04
Abstract: 1441914 Deep fat fryers W M STILL & SONS Ltd 4 July 1973 [4 July 1972] 31200/72 Heading A4D Cooking apparatus, particularly a deep fat fryer, comprises a cooking vessel 4 having a drain 8, 10  controlled by a valve 12 located within the confines of the casing 2 of the apparatus, and a drain chute 18 movable from a position in which it is wholly contained within the casing to a position in which its inner end lies under the outlet 14 of the drain and its outer end projects beyond the casing through an opening 24 in the casing, the chute being connected to a door 26 for closing the opening 24 and the connection being such that when the door is opened the chute is drawn into its operative projecting position. Preferably the door and chute are con-  nected by springs 30 each having one end connected by an eye 34 with a loop 32 at the inner end of the chute and the other end fixedly connected at 36 to the inside of the door. The door and chute are retained in the operative position by the engagement of a projection 38 from the underside of the chute engaging over the edge 40 of the opening. The chute slides on ribs 22 on drain tube 10.
Patent GB-1437978-A (GB)
Title: Preparation of ferromagnetic chromium dioxide
IPC: C01G37/02
Filed: 1973-06-29
Abstract: 1437978 Ferromagnetic chromium dioxide MONTECATINI EDISON SpA 29 June 1973 [30 June 1972 (2)] 31224/73 Heading C1A Ferromagnetic chromium dioxide particles of a tetragonal crystalline shape of the rutile type, having a particle length of 0À01-0À1 Á, a length to width ratio of 1 : 1 to 5 : 1, a collective force of 220-320 Oersteds, a saturation magnetization of 80-87 gauss cc./g., a residual magnetisation to saturation magnetization ratio of of 0À4-0À5, and an oblong shape are prepared from hydrated chromium (III) chromate or mixtures of chromium metal and chromium oxide having Ci with a valency greater than 4 by heating to 300-500‹ C. under an oxygen pressure of 30-1000 atms. and in which the granulometric and magnetic characteristics required are obtained by regulating the heating from 200-300‹ C. of the reaction mass, and/or by adding to the starting materials 0À05-30% by wt. of the Cr one or more compounds which will oxidize under the reaction conditions exothermically between 100-270‹ C., in such a way that the reaction mass exceeds the temperature internal 200-300‹ C. in a pre-established time, e.g. (less than 35 mins) depending on the granulometry and on the coercive force required. When the starting material is chromium chromate material of the general formula G 2 (GO 4 ) 3 n.H 2 O where n is 1-8 and the Cr<SP>6+</SP>/Cr<SP>3+</SP> ratio is 1À2-1À9 but preferably 1À5 is used. Oxidizable additives used are ammonia, oxalic, lactic, citric and tartaric acids. Chromium dioxide produced has a coercive force greater than 390 Oersteds, a particle length of < 1 Á and a length/width ratio of 5 : 1 to 12 : 1.
Patent GB-604010-A (GB)
Title: Drafting machine
IPC: B43L13/14
Filed: 1945-11-20
Abstract: 604,010. Perspective drawing instruments. POMEROY, R. J., and HIRSHSTEIN, J. Nov. 20, 1945, No. 31239. [Class 97 (iii)] Longitudinally spaced points 84, 117 on a rule 81, provided with a hair line 89, or equivalent are connected to means such as the carriage 56 and head 96 and are thereby caused to move across the middle of the drawing board along parallel paths at a predetermined speed ratio so that the hair line always passes through a fixed point S.. A rule 118 is carried by the carriage 56 with its edge at right angles to the paths of the points 84, 117 and passing through the point 84. As shown, the carriage 56 for the pivot 84 and the head 96 for the pivot 117 are arranged to slide on a guide rail 38 and are attached to endless bands 52, 51 respectively. The latter pass around pulleys in the pulley blocks 36, 37 at the ends of the rail 38, the pulleys for the band 51 being slightly smaller than those for the band 52. In the pulley block 36, the two pulleys are fixed together so that for each displacement of the band' 52 and carriage 56 there is a corresponding displacement of the band 51 and head 96, which is diminished in a constant ratio. In a modification, the pulleys are mounted perpendicularly to the drawing board. In order to vary the position of the point S, the pivot 117 can be adjusted on the head 96 according to the scale 113. In a modification, the hair line 89 is replaced by a stretched wire the support for which is pivoted to one carriage and provided with a telescopic extension which is connected by a second pivot to a rod adjustably supported on the second carriage. The rod may be adjusted telescopically to vary the distance between the two pivots. In a further modification the rule 81 is replaced by a sliding rod carrying stylus. The instrument may be used to produce " stereoscopic pairs " by repeating the operation giving one perspective drawing with reference to a second fixed point S at the interpupillary distance (or its scaled equivalent) from the first reference point.
Patent GB-731186-A (GB)
Title: Calibrating apparatus
IPC: G01K15/00
Filed: 1952-12-10
Abstract: 731,186. Electric heating resistances. CONSOLIDATED VULTEE AIRCRAFT CORPORATION. Dec. 10, 1952 [March 22, 1952], No. 31274/52. Class 39 (3). [Also in Groups XXXVI and XXXVIII] The thermocouple system of an installed jet engine tail-cone is calibrated by heating each thermocouple separately by an auxiliary source of electrically controlled heat and switching the normal temperature indicator and a standard temperature indicator alternately into circuit with the thermocouple. Each thermocouple is adapted to be a sliding fit in a good heat conducting tube 21, e.g. of copper surrounded by ceramic material 12 in which the heating winding 13 is embedded. Preferably the ceramic material is moulded about the heater winding and has a protective non- corrosive cover 14, e.g. of stainless steel.
Patent GB-1360387-A (GB)
Title: Conductors for electrical machines
IPC: H02K3/00
Filed: 1971-06-25
Abstract: 1360387 Conductors for electrical machines INTERNATIONAL RESEARCH & DEVELOPMENT CO Ltd 25 June 1971 [29 June 1970] 31315/70 Heading H2A [Also in Division H1] A conductor 1, for an electrical machine, comprises a plurality of individually-insulated subconductors 2 disposed in at least one ring around a central axis of the conductor and each being helically wound around the axis and comprising a central duct 4 around which is disposed a series of conductor strands 3 each of approximately circular ring sector cross-section thereby forming a sub-conductor of generally circular cross-section, and the voids 8 between the sub-conductors are filled by an electrical insulating material, e.g. a resin. The subconductors may be arranged in mutually insulated concentric rings and may be then, as shown, or may not be, a central sub-conductor. The strands are also helically wound around the ducts 4 of the individual sub-conductors, are mutually insulated by varnish 5, and are enclosed by a material 6 which may be an epoxy resin tape or a stainless steel tube respectively soldered or brazed to a liquid, e.g. water, or gaseous, coolant header 9 which directs the coolant to the ducts 4. The conductor is applicable to the non-superconducting stator winding of a synchronous A.C. generator having an either superconducting or non-superconducting rotor winding.
Patent GB-387438-A (GB)
Title: Improvements in or relating to moulds and their manufacture, particularly pneumatic and other tyre moulds
IPC: B29C33/42
Filed: 1931-11-12
Abstract: 387,438. Casting tyre and other moulds. DUNLOP RUBBER CO., Ltd., 32, Osnaburgh Street, London, DAVIES, T. E. and BLACKMORE, H., Fort Dunlop, Birmingham. Nov. 12, 1931, No. 31326. [Class 83 (i).] Casting - machines ; moulds ; clamping moulds.-Tyre and other moulds or cores are made by die-casting metal on a foundation so as to provide a mould surface of required form. The cast metal forms only part of the mould surface and the foundation may be fitted into a reinforcing shell or directly into vulcanizing apparatus. The foundation shell 1 is carried by a rotatable table 19, Fig. 2, provided, if desired, with indexing mechanism. A die 41, having a cavity corresponding to required transverse ribs to be cast, is clamped by means of a toggle 44 to the inside of the shell 1, the outside being supported by a formation of the table or an adjustable arm 48. A casting- machine 11 is pivoted on a shaft 25 and supported by a spring 33 suspended from a shaft 29, both shafts being adjustably secured on rails 26. The machine is normally depressed by a cam 37, on the shaft 29, engaging a projection 34, but in the position shown the cam allows the spring 33 to force the nozzle 23 into engagement with one of the gates 24 formed in the shell. The metal is forced in by compressed air through a passage 13 in the closure 14. Undercut grooves 6, Fig. 1, or holes 7, 9 are formed in the shell and in any circumferential ribs 8 thereof. The gates 24 may then be plugged. In modifications other means may be used for introducing the molten metal, a gate may be formed in the die instead of gates in the shell, the die may be heated in any way, the rotation of the table may sever runners or otherwise finish the casting and any of the operations may be performed by power means, the whole cycle being carried out automatically if desired.
Patent GB-1189228-A (GB)
Title: Improvements in Pneumatic Tyres
IPC: B29D30/00
Filed: 1967-07-07
Abstract: 1,189,228. Tyres. DUNLOP CO. Ltd. (Deutsche Dunlop Gummi Compagnie A.G.) 7 July, 1967, No. 31403/67. Heading B7C. A rubber element comprising an inner liner portion, chafer strip portions and part sidewall portions integrally combined is used as the radially innermost element of a tyre in the building of a tyre on a drum. In a typical example, the rubber element in sheet form is placed on a collapsed tyre building drum and two plies of rubberized textile material of greater width than the rubber sheet are placed thereover, followed by two bead cores which are placed so that each core is adjacent to one of the chafer strip portions of the rubber sheet. The drum is then expanded and the edges of the plies and the rubber sheet are turned around the bead cores such that the plies overlap near the mid-circumferential line of the tyre carcass and the edges of the rubber sheet extend from the bead regions of the tyre. A tread band or breaker(s) and tread band are then positioned on the drum radially outwardly of the plies and the various layers are consolidated. The drum is collapsed and the green tyre is removed to be moulded and vulcanized. The rubber element, instead of being in sheet form, may be in the form of a seamless hollow cylinder. If desired, the rubber element may be calendered on to the radially innermost carcass ply and the composite may be positioned on the drum.
Patent GB-265899-A (GB)
Title: Improvements in valve operating mechanism
IPC: F16K31/04
Filed: 1926-05-06
Abstract: 265,899. Dale, W., B., Hopkinson, R. A., and Hopkinsons, Ltd. May 6, 1926, Drawings to Specification. Switches, actuating. - The subject-matter of this Specification is substantially the same as that of Specification 265,824, but the claims differ.
Patent GB-1241791-A (GB)
Title: Improvements in or relating to container filling apparatus
IPC: B67C3/00
Filed: 1967-07-07
Abstract: 1,241,791. Filling containers. GKN SANKEY Ltd., and P. F. ASTBURY. 1 July, 1968 [7 July, 1967], No. 31521/67. Headings B8C and B8T. An apparatus for filling flexible containers with sterilized cream or milk under sterile conditions comprises a filling head 17 slidably mounted on a support 13 above a forked support 21 to engage the neck of the container. The filling head 17 comprises an outer cylinder 27 in which is slidably mounted a piston 28 attached to a sleeve 29. Mounted in the sleeve 29 is a cylinder 44 having a probe 53 at its lower end on which is slidably mounted a sleeve valve 49 which is urged downwardly by a spring 48 which can cover parts 58 in probe 53. In operation, the container is placed, in a collapsed state, on support 21 and the operation may proceed automatically. The filling head is lowered by means of an hydraulic ram 24 until the neck is in sealing engagement with the head. Steam is passed along conduit 39 to sterilize those parts of the container and apparatus inside the enclosure formed by the head and neck which had been exposed to the air. The steam supply is then cut off by one of the timing clocks 16 and air pumped through port 25 to lower cylinder 44 and probe 53, thereby exposing ports 58 and opening a poppet valve 73 in the neck of the container. Sterile liquid is passed down conduit 54 to fill the container which initially was collapsed and which had been sterilized by irradiation. When the container is full cylinder 44 and probe 53 are raised by passing air through port 20, valves 73 and 49 closing by action of springs 75 and 48 respectively. Hot water is then passed along conduit 39 to wash away liquid residue, followed by a blast of air for drying, timing clocks again controlling the flow. The head 17 is then raised, the container removed, and another container introduced for the next filling cycle.
Patent GB-361539-A (GB)
Title: Improvements in or relating to time controlled switches for wireless receiving sets and the like
IPC: H01H47/00
Filed: 1930-10-21
Abstract: 361,539. Time switches. CROSS, R., 13, The Crescent, Surbiton, Surrey. Oct. 21, 1930, No. 31526. [Class 38 (v).] Partly electromagnetic switches; interlocked switches.-The low tension circuit of a wireless receiving set is completed at set times by an electromagnetic switch energized through the medium of an alarm clock. The circuit arrangement is shown in Fig. 3. Mercury cups 14 .. 17 are arranged to be bridged in pairs by conductors 12, 13 carried by a steel arm 10 pivoted at 11 and arranged to have one end lifted by an electromagnet 18. An alarm clock 2, having a contact attached to the hammer releasemember is set to the desired time and a two-way switch 29 is moved to connect points 19, 20. The switch 22, 23 is self closing except when opened by a hand switch for direct switching. At the predetermined time, the alarm clock closes the circuit X, Y through the electromagnet which lifts the arm 10 to break circuit at the cups 16, 17 and complete the circuit through the cups 14, 15. The arm 10 is held up by permanent magnetism and by the forked end of the magnet core. To break the circuit, a hand switch 28 is moved to the left allowing a spring member 39 to move the arm 10 away from the electromagnet and open a switch 22, 23. To switch on directly and switch off at a predetermined time, the two-way switch 29 is moved to connect the points 21, 19, so that the circuit is completed through the points 22, 23 and mercury cups 16, 17. When the electromagnet is energized through the alarm clock, the arm 10 is lifted to break the circuit at the mercury cups 16, 17. The hand switch 28 may be used for direct switching by closing the circuit through the points 24, 25 by means of a spring 31. To prevent short-circuits, the switch 28 has a pin-and-slot connection with a link connected with a cross-arm carried by the two-way switch 29 to move it to the central neutral position when switching directly on. When switching directly off, the switch 28 breaks circuit at 24, 25 and at 22, 23. If desired, the alarm clock may be replaced by a watch having a contact passing through the rotatable cover to co-operate with the hour hand.
Patent GB-961639-A (GB)
Title: Equipment case
IPC: A45C11/38
Filed: 1962-08-17
Abstract: 961,639. Partitioned boxes. E. HAMANN. Aug. 17, 1962 [Oct. 19, 1961], No. 31608/62. Heading B8P. A leather case 1, e.g. for photographic equipment, with closure mountings 2 and a carrying strap 3 has adjustable partition walls 4 made of flexible cardboard-like material coated on both surfaces with a looped fibre fabric 11, Fig. 2, the inner walls 5 of the case being coated with the same fabric so that when the fabric surfaces 11 are pressed against interposed looper connecting strips 7 the hooks 12 hook themselves into the fibres of the fabric 11 and produce a firm yet releasable connection. The partition walls have bent-over edge flanges 6 to enable the walls to lie against each other or against the inner wall of the case 5 and between the two fabric surfaces there are arranged the connecting strips 7 which are coated on both surfaces with thermoplastic connecting hooks to form a burr-like connection with the fabric layers. Additional connecting strips 8, coated with hooks on one side only are used to reinforce the connections and to cover the joints between opposed wall surfaces and may also be used to retain small articles Reference has been directed by the Comptroller to Specifications 721,338 and 883,298.
Patent GB-193513-A (GB)
Title: Improvements in or relating to welding copper or alloys thereof
IPC: B23K35/30
Filed: 1921-11-26
Abstract: 193,513. Britten, W. R. J., and District Chemical Co., Ltd. Nov. 26, 1921. Alloys.-In welding copper or copper alloys, a copper or copper alloy filling-rod or wire containing about 0.5 per cent of vanadium is used.
Patent GB-185052-A (GB)
Title: Improvements in or relating to needles
IPC: D05B85/00
Filed: 1921-11-28
Abstract: 185,052. Slater, C. Nov. 28, 1921. Sewing - needles.- A needle shank a is formed with flats d, terminating i n a spear-shaped point with cutting edges e. Milled grips may be formed on the flats d. The eye g is situated at the other end c which is reduced as shown.
Patent GB-1075023-A (GB)
Title: Improvements in or relating to the preparation of tetracycline by fermentation
IPC: C12P29/00
Filed: 1965-07-26
Abstract: Tetracycline is produced by fermentation by subjecting Streptomyces subterraneus as deposited in the Technological Faculty of the University of Zagreb, Yugoslavia, under reference number 4003, or a tetracycline-producing mutant thereof, to submerged aerobic fermentation in an aqueous nutrient medium containing a source of assimilable carbon, nitrogen and growth factors, without the addition of inhibitors of halogenation.  The tetracycline is produced free from halogenated tetracyclines and is recovered from the fermentation broth by conventional methods.
Patent GB-1380666-A (GB)
Title: Apex seal for the piston of rotary piston machines
IPC: F01C19/10
Filed: 1973-07-04
Abstract: 1380666 Rotary piston machines WANKEL GmbH 4 July 1973 [5 July 1972] 31849/73 Heading F1F In a rotary piston I.C. engine or compressor with a housing comprising a peripheral epitrochoidal inner surface and end-walls defining a cavity in which rotates a multi apex piston mounted on an eccentric and an induction control port (not shown) in one end-wall, each apex of the piston has an apex seal strip 2, a corner piece 1 and a link block 9 between faceseals 7, and 10 on at least one face of the piston, which are arranged so that the path of the faceseals and link block lies inwards clear of the induction control port and the associated corner piece 1 has a limb 3 extending to the link block 9 and which engages the end-wall to act as a seal. The limb 3 is received in a groove 4 in the face 5 of the piston which is inclined at 30 degrees to a radial line 6 through the associated piston apex. Each corner piece 1 and its limb 3 are acted upon by a leaf-spring 11 which engages a surface 12 inclined at 30 degrees to the machine's axial direction to urge the corner pieces 1 against the peripheral wall and the sealing strip 2. The link block 9 is milled through in a radial direction at the same time as the groove 4 that receives the limb 3 to form a groove 13 which is blocked off by a pin 14. A groove 15 connects a space 16 behind the link block 9 for its spring to the groove 4 so as to allow gas-pressure to reach the space 16.
Patent GB-1080744-A (GB)
Title: Process for the production of acid protease by cultivation of a microorganism
IPC: C12N9/62
Filed: 1964-08-05
Abstract: Acid protease, which is a mixture of two proteases having optimal pH values of about 2.0 and 3.0, is obtained by culturing Aspergillus niger var.  Microsporus (ATCC 16513) and recovering the acid protease from the culture by known methods.
Patent GB-505664-A (GB)
Title: Improvements in and relating to needle weaving looms
IPC: D03D47/00
Filed: 1937-11-19
Abstract: 505,664. Shuttleless looms. DEWAS, R. Nov. 19, 1937, No. 31896. Convention date, Nov. 21, 1936. Addition to 470,776. [Class 142 (ii)] In the invention described in the parent Specification each weft inserting needle 1 is attached to and driven by a flexible band 14 which is guided by the needle guiding means provided on the front of the sley and in the needle guiding boxes. The band may be guided also by other means in the boxes and /or on the sley. Each band is received at its free end in fixed guides 20 and is driven by a wheel 15 having teeth meshing with holes in I the band; in Fig. 15 another toothed wheel 23, keyed to the same shaft as the wheel 15, meshes with recesses in a sole plate 18<1> on the needle and drives the needle. Figs. 4 and 12 show examples of band-guiding means arranged on the sley. In Fig. 4 one side of the band is received in a recess 21 on the inside of the needle-guiding element 13 and the other side is received in a similar recess on a complementary gujde 13'. In Fig. 12 the band, where it is secured to the needle, is not guided laterally, but behind the needle it widens and is received in recesses 21, 21<1> in the needleguiding members 13, 13<1>. Figs. 7 and 15, show examples of band-guiding means arranged inside the box. In Fig. 15 the teeth of the wheel 16 pass through theband into recesses in the needle guide 3. Figs. 13 and 14 are cross-sections of the guides 13, the left-hand sides being on the front of the sley. The band 14 may comprise two non-metallic strips, with or without an interposed metal strip, secured to each other only where they are fixed to the needle.
Patent GB-919100-A (GB)
Title: A method and apparatus for the production of an embossing tool for providing specialsurface finishes for plastic materials
IPC: B29C59/02
Filed: 1961-09-05
Abstract: 919,100. Making embossing tools. DUNBEE-ELM Ltd. Sept. 5, 1961 [Sept. 14, 1960], No. 31912/61. Class 83 (2). [Also in Group V] An apparatus for making an embossing tool having a relatively soft surface for producing special surface finishes on plastics comprises a reciprocating piercing tool having needle-like members fixed thereto and means for reciprocating the piercing tool into and out of contact with the surface of the embossing tool. The embossing tool is formed by piercing the surface of a drum 27 made of lead-antimony alloy. The piercing is performed by needle-like members 24, preferably of piano-wire; sharpened to a point at the free end and of any required cross-section. The tool is fixed to a shaft 20 which has a bifurcated centre section 20a in which is housed a driven star-wheel 25. A cam follower 26 integral with the shaft is pressed against the star-wheel by a spring 32 which acts on a flange 30 secured to the shaft. The drum 27 is rotated slowly as the tool reciprocates and thus pierces the surface, the pitch of the holes produced may be less than the pitch of the needles in the tool. When the tool is flat-ended as shown and the embossing tool cylindrical the needles will penetrate the drum to different depths, when the embossing tool is in the form of a flat plate the same effect can be achieved by shaping the end of the piercing tool so that the ends of the needles lie in a plane or planes inclined to the surface of the plate. The density of the holes produced in the surface of the embossing tool ranges from 200 to 37,500 per square inch, the depth varies between 0.002 and 0.5 inches and the equivalent diameter at the surface from 0.002 to 0.2 inches.