baber/WOPTO huggingface dataset:
Patent GB-988578-A (GB)
Title: Improvements in or relating to stretching hollow metallic bodies
Inventor: WEISS EUGENE
IPC: B21B17/02
Filed: 1961-08-16
Abstract: 988,578. Rolling tubes. TUBOPROGRESS A.G. Aug. 16, 1961 No. 29609/61. Heading B3M. A method of stretching metallic tubes comprises supporting the tube on a mandrel and rolling the tube in n steps such that the ratio of the wall thickness So prior to rolling to that Sn after the last (rolling) step is sufficiently large that n#So/Sn is at least 1.26. The profile of each roll comprises a concave portion f-f and two edge portions f-g which can be convex, straight, or a combination of both. Ribs h are formed between the edge portions of two adjacent rolls but are rolled out by the time the final diameter d is reached.
Patent GB-409217-A (GB)
Title: Photographic cameras
IPC: G03B13/20
Filed: 1933-10-25
Abstract: 409,217. Photographic cameras. VOIGTLANDER & SOHN AKT.-GES., 7, Campestrasse, Brunswick, Germany. Oct. 25, 1933, Nos. 29623 and 29624. Convention dates, Nov. 9, 1932 and Nov. 19, 1932. [Class 98 (i).] A photographic camera comprises a finder and coupled rotary members for axially shifting the exposure and the finder lenses for focusing, the rotary members co-operating with means for inclining the finder lens relatively to the optical axis of the exposure lens for preventing parallax. As shown, the camera comprises a body 1 with a partition 2 forming an exposure chamber 3 and a finder chamber 4. The exposure chamber 3 has a lens 5, an opening 6 closed by a lid 7, film spools 8 and a film 9. The finder chamber 4 comprises a finder 10 including a casing 11 having a bottom 12 inclined at an angle of 45‹ and having a mirror 121 mounted thereon. The casing 11 is hinged to the top of the front wall 22 at 13 and is acted upon by a spring 14 tending to incline it with its front wall 15 forwardly. The finder comprises a lens 16 and a focusing screen 17. The carrier 18 of the exposure lens 5 comprises a tube 19 formed with external screw-threads 20 engaging the internally threaded ring 21 mounted in the front wall 22. The ring 21 has a flange 23 with gear teeth 24 and embedded in a recess 25 in the wall 22. The flange 23 is integral with an arm 27 carrying a finger piece 28. From the plate 26 projects an arm 29 formed with a slot 30 engaged by a pin 31 secured to the shutter housing 32. Projecting through the front wall 15 of the finder casing 11 is a tubular member 35 with external screwthreads 34, and mounted on the member 35 is an internally threaded ring 36 to which the tube 37 supporting the lens 16 is secured. Between the front wall 22 and the top of the plate 26 is mounted a gear wheel 38 meshing with the gear wheel 24 and integral with a ring 39 secured to which is a pin 40 engaging in a longitudinal slot 41 in the tubular member 36. The ring 39 has a cam face 42 engaging a pin 43 secured to the casing 11, and has scale marks co-operating with a pointer 47 on the plate 26. In a modification, the shutter casing of the exposure lens has external screw-threads engaging in an internally screw-threaded ring rotatably mounted in a tubular extension of the camera case, and formed with gear teeth meshing with the gear teeth carried by a ring for axially displacing the finder lens. The iris diaphragm is set by a ring rotatably mounted on the exposure lens carrier and connected with the diaphragm laminations by pins. The ring has gear teeth engaging a pinion mounted on a pin fixed to the front wall, the pinion being integral with a gear wheel meshing with another gear wheel located in a slit in the tubular extension of the camera case.
Patent GB-1057565-A (GB)
Title: Improvements relating to cradles for supporting dowel bars
Inventor: THOMAS PHILLIP EDWARD
IPC: B28B23/02
Filed: 1964-07-18
Abstract: 1,057,565. Dowel bar supports. G. K. N. REINFORCEMENTS Ltd. July 2, 1965 [July 18, 1964], No. 29715/64. Heading E1G. Dowel bars, for concrete slab joints, are each secured adjacent one end to a cradle, a plurality of cradles being held is spaced parallel relationship by transversely extending members. The cradles are of rod bent to form, with the dowel bars, trapezium shapes, four transverse members being welded to the larger base sides and two to the upper ends of the angular sides to support the dowel bars. Alternate ends of the dowel bars are spot welded to the cradles, the other ends being protected by bitumen paint to provide a sliding joint in the concrete.
Patent GB-391042-A (GB)
Title: Improvements in clamping devices for sheets of paper
IPC: B42F9/00
Filed: 1932-10-24
Abstract: 391,042. Clamping-devices for paper sheets. STIEGLER, J. P., 46, Konigstrasse, Stuttgart, Germany. Oct. 24, 1932, No. 29722. [Class 146 (i).] A device for clamping paper sheets, particularly for the purpose of making duplicate sheets, comprises a casing in which is mounted a series of clamping members actuated by a single handle but capable of individual movement so that they can accommodate themselves to inequalities in the surface on which they rest. In one form, Figs. 2 and 3, two sets of clamping- pins g, hare slidably mounted in a casing c, d and pressed downwardly by springs i. In order to raise the pins, channel-bars e, fare employed and engage collars g<1>, h<1> respectively on the pins g, h. The bars e, f are connected by links l to levers o, p mounted on a spindle n carried by a bracket m. A shaft q on the bracket m is turned by a handle r and carries cams s, t which engage the levers o, p respectively and are so shaped that as the handle r is turned, the pins h are raised before the pins g, the lowering being in the reverse order. In use, a carbon sheet is placed against registering edges b<1> on brackets b and clamped by an ordinary spring-clamp u fixed to the casing c, d. A sheet to receive the writing is placed under the carbon sheet, registered against edges b<11>, and the handle r turned sufficient to allow the pins g to grip the sheet. The sheet to be copied is placed against the pins g and gripped by the pins h. In a modification, one or more sets of pins may be operated by one or more cam levers pivoted directly to arms fixed to the bar or bars e, f.
Patent GB-1012226-A (GB)
Title: Improvements relating to aircraft crash recorders
Inventor: LOBELLE MARCEL JULES ODILON
IPC: B64D45/00
Filed: 1962-08-02
Abstract: 1,012,226. Aircraft crash recorders. M. L. AVIATION CO. Ltd. July 23, 1963 [Aug. 2, 1962], No. 29766/62. Heading B7G. [Also in Divisions F3 and H4] An aircraft crash recorder unit comprises a recorder housed within a canister which may be ejected from an aircraft, the canister including a time delay mechanism initiated by ejection from the aircraft, a parachute having a release linked to the delay mechanism, a flotation bag connected to a source of compressed gas, the release of gas from which is controlled by a member linked to the delay mechanism, and a ratio transmitted controlled by a switch linked to the delay mechanism, the linkages being such that when the delay is completed the parachute is deployed, the flotation bag inflated and the transmitter switched on. As described, the canister is in four sections, 1-4, and the recorder 6 is housed in shock - absorbent material 7 in sections 1 and 2. The canister is fitted in a cylinder 15 in the aircraft and is ejected by an electrically-fired explosive cartridge 20 in a tube 19 fixed to the aircraft. This explosion fires a pin 31 to ignite a delay cartridge 29 in a tube 27 constrained by a tube 26 fixed to section 4 of the canister, and by raising the pressure in the annular space between the tubes 19 and 27, ejects the canister, knives 57 on section 1 cutting through a frangible panel in the aircraft skin and a plug 23 on the canister parting from a socket 24 containing electrical and cooling connections to the recorder. The cartridge 29 raises a piston 35 fixed to plunger 33 within the tube 27 to actuate a lever pivoted at 39. This operates a microswitch 71 to turnon the transmitter and moves knives 44 to break the seals on gas bottles 10, 11 which then inflate the filtration bags 13, 14. When the piston 35 reaches an abutment 36 the cartridge 29 separates the sections 3 and 4 of the canister by shearing rivets 60, thus deploying the parachute 12 and allowing the aerial 56 to extend. The canister is also provided with soluble bags of sea marker dye. Ejection may be initiated manually, or automatically be inertia, immersion or heat-sensitive switches, or by operation of the pilot's ejection seat.
Patent GB-432668-A (GB)
Title: Improvements in and relating to spinning rings
IPC: D01H7/56
Filed: 1934-10-18
Abstract: 432,668. Spinning-rings. KUWADA, G., Maetani-Mura, Kawabe-Gun, Hyogo, Japan. Oct. 18, 1934, No. 29836. [Class 120 (ii)] Spinning - rings are secured in their holders by a split ring 8 engaging corresponding grooves in the ring and holder, so that while the ring is free to rotate it is prevented from rising. An oiled wick 7 may be provided to act as a brake on the ring.
Patent GB-1524457-A (GB)
Title: Extractive electrode situated in the vicinity of the particle source of acceleators of the cyclitron type
IPC: H05H7/10
Filed: 1976-07-19
Abstract: 1524457 Cyclotrons CGR MEV 19 July 1976 [21 July 1975] 30044/76 Heading H1D In a cyclotron in which an extraction electrode is located adjacent the particle source to extract particles therefrom, the electrode is in the form of a metal prism 10 housing in its surface 12 adjacent the source S a window 14 for the entry of particles, the window opening into a notch 11 which provides a channel, defined by walls 15 and 16, for the particle beam F, such that the beam is shielded from the focusing and defocusing effects of the component of the cyclotron A.C. electric field which is perpendicular to the plane of the mean beam path. As shown, the electrode may be secured to one of the Dees 17. In the arrangement of Fig. 5, the element 35 separates the window and the notch into two channels C 3  and C 4  appropriate to operation of the cyclotron at two different harmonic frequencies. The element 35 may be adjustable, e.g. by the screw threaded rod 37, and may have surfaces which mate with the respective channels walls when the element is displaced to one or other of its extreme positions. (Figs. 9 and 10, not shown). In an alternative arrangement, the adjustable member 35 may at the window end be provided with shoulders (38, 39, Figs. 6 and 7, not shown) which engage the top and bottom surfaces of the window, the member being held in position by a locking plate (P). The surface 12 of the prism adjacent the source may be convex (Fig. 3, not shown) to permit positioning closer to the source.
Patent GB-846199-A (GB)
Title: Molded pulp carton
IPC: B65D85/32
Filed: 1958-09-22
Abstract: 846,199. Egg cartons. KEYES FIBRE CO. Sept. 22, 1958 [Sept. 25, 1957], No. 30164/58. Class 18. A moulded pulp carton comprises a pocketed section 10 hinged to a cover section 12 and in which rows of pockets 14 are separated by alternate rows of posts 18 connected by ribs 16 with half-posts 26 at the end of each row and an opening 50 in the top of at least one of the half posts 26 to which corresponds a button 54 on a flap 52 hinged to the cover section 12 and insertable through the opening 50 so as to project externally. When the carton is closed the buttons 54 are held resiliently in the holes 50 and a square bead 56, which hinges flap 52 to section 12, rests on rim 44 of section 10. The posts 18 each have an upper and a lower inclined side wall area 38, 36 respectively and between them is a junction line 40 positioned intermediate the top plane of the ribs 16 and the top plane of the posts 18 so that the ribs add strength to the carton but do not interfere with the resiliency of the support given to the eggs. In a modification, Fig. 7, part of the button 76 extends inwardly of the outer edge of flap 74 and the opening 80 has an extension 86 in the side wall 84. The carton may be provided with ventilating notches in the top of half-posts 24.
Patent GB-1059865-A (GB)
Title: Ethylene polymerisation and copolymerisation
Inventor: BOOCOCK GEOFFREY
IPC: C08F10/02
Filed: 1964-07-30
Abstract: Ethylene polymers are made by polymerizing ethylene alone or together with one or more olefin monomers, e.g. propylene, at a temperature of at least 50 DEG  C. and in a liquid reaction medium comprising a hydrocarbon and a catalyst formed by mixing a compound of a metal of Group V(a), or VI(a) of the Periodic Classification and an organometallic compound of a metal of Group I(a), II(a) or III(b) of the Periodic Classification, and a poly-halo organo-halogen compound, and the amount of catalyst in the reaction mixture is controlled in such a manner that the Group V(a) or VI(a) metal concentration therein is maintained below 0.1 milliatom per litre thereof and the total amount of organometallic compound or compounds supplied to the reaction mixture being such that a substantially steady rate of polymerization is maintained. The poly - halo organo - halogen compounds used are those organic halogen compounds containing in their molecular structures a grouping -CX3, in which each X represents a flourine, chlorine, or bromine atom, and said grouping is attached either to an atom or group more electronegative than hydrogen (e.g. a halogen atom) or to a hydrogen atom.  Specified compounds are CCl4, CBr4, C2Cl6, CHCl3, and CHBr3.  Preferred compounds of Groups V(a), and VI(a) are vanadium tris(acetylacetonate), vanadium oxybis(acetylacetonate), VO(OBu)3, vanadium di-isopropyl salicylate, vanadium naphthenate, and the corresponding chromium compounds.  The preferred organometallic compounds are organoaluminium compounds. The catalyst may be preformed or formed in situ.
Patent GB-926460-A (GB)
Title: Wet beneficiating of phosphate ores
IPC: B03D1/001
Filed: 1961-08-22
Abstract: 926,460. Concentrating ores. INTERNATIONAL MINERALS & CHEMICAL CORPORATION. Aug. 22, 1961 [Aug. 31, 1960], No. 30206/61. Class 117. Phosphate ore is beneficiated by a method which comprises the steps: (1) subjecting unsized liberated phosphate ore to froth flotation in the presence of an anionic flotation reagent to provide a phosphate-rich overflow concentrate and an underflow stream; (2) subjecting the underflow from (1) to froth flotation in the presence of a cationic flotation reagent to provide a phosphate-containing underflow concentrate and an overflow discard tail; (3) subjecting the underflow concentrate from (2) to gravity separation to provide a phosphate-rich gravity concentrate product. The deslimed, unsized ore is mixed with a flotation agent composition such as tall oil. Any known standard flotation equipment may be used. The overflow phosphate-rich concentrate from the first froth-flotation is dewatered to provide a high-solids slurry, to which sulphuric acid is added to remove the anionic flotation reagents, and it is then washed to neutrality. A suitable cationic flotation agent for the second flotation step is a long-chain aliphatic amine. The underflow stream from the first froth-flotation step may similarly be de-watered, mixed with acid, and washed to neutrality, but since it contains predominantly unreagentized material these steps may be omitted. The gravity separation of step (3) may be done by any known means, e.g. spirals tables or belts. The necessity of sizing the ground ore is eliminated. Referring to a flow sheet for a preferred embodiment of the invention, unsized de-slimed phosphate ore from a feed bed 21 is reagentized with an anionic reagent and subjected to rougher froth flotation at 22. The phosphate-rich overflow is subjected to cleaner flotation at 23 to provide a phosphate-rich overflow, and a silica-containing underflow which is subjected to scavenger flotation at 24 to provide, again, a phosphaterich overflow and a silica-containing underflow. The overflows from 23 and 24 are combined and de-watered, scrubbed with a mineral acid and washed at 25, 26, 27 and the concentrate is subjected to flotation with a cationic reagent at 28 to provide an overflow silica tail and an underflow final phosphate concentrate. The underflows from 22 and 24 are combined and dewatered, scrubbed and washed at 29, 30, 31 and then subjected to flotation with a cationic reagent at 32 to provide an overflow silica tail and an underflow stream containing the coarser particles of phosphate and silica, this underflow being subjected to gravity separation at 33 to provide a second phosphate concentrate. Quantitative examples are given.
Patent GB-883582-A (GB)
Title: An improved apparatus for drawing samples of liquid from a line
IPC: G01N1/20
Filed: 1960-09-02
Abstract: 883,582. Sampling liquids. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. Sept. 2, 1960 [Sept. 4, 1959], No. 30347/60. Class 106(5). Apparatus for taking samples of liquid from a pipeline comprises a plug 12 rotatable within a fixed sleeve 3 extending vertically across the line so that slots 13 and 4 are in line, allowing flow through them, or are out of line so that liquid trapped in the slot 13 is released through channels 16, 17, 18, 19 and a hose to a collecting vessel. During release, as the slot 13 comes in line with the channel 16, the pressure in the slot is released and subsequently the upper end of the slot communicates with a channel 23 leading to atmosphere and allows ready flow from the slot. The plug has a squared end 15 and can be rotated by hand or by a motor or by a drive coupled to a liquid meter so that samples are withdrawn in proportion to the quantity of liquid flowing in the line. Strips 27 may be provided on both sides of the slots 4 to reduce turbulence. Two other sleeves 9 and 5 are preferably provided, a fixed sleeve 9 with slots 10 and a sleeve 5 with a notched end 6 for rotating it to bring its slots 7 out of register with the slots 4 to allow removal of the sleeve 9 and plug 12 for inspection.
Patent GB-728312-A (GB)
Title: Improvements in stencilling pens
IPC: B43K1/01
Filed: 1952-12-01
Abstract: 728,312. Reservoir pens ; point protectors. HETTICH, H. Dec. 1, 1952 [Dec. 20, 1951], No. 30468/52. Class 146(3). A pen, especially for titling drawings with the use of stencils, comprises an ink reservoir 1 tapering at its lower end 2 towards a writing tube 3 which may be enclosed, when not in use, in an airtight manner within a recess 8 in the end of a penholder 7. As shown, the reservoir 1 is slidably held in a spring clip 5 pivoted to a leaf spring 6 attached to the penholder 7. A cleaning wire 9, slidable in a cap 4, is provided for cleaning the tube 3. In a modification, not shown, the spring clip for supporting the reservoir is adjustably clamped, by means of a nut to a slotted member attached to the penholder, while the cleaning wire is spring pressed upwardly from the writing tube.
Patent GB-210545-A (GB)
Title: Improvements in and connected with scouring, bleaching, dyeing, wet acid carbonizingand like operations, on wool and other fibrous materials
IPC: D06B3/02
Filed: 1922-11-07
Abstract: 210,545. Davies, W. Rhys-, and Haigh, T. Nov. 7, 1922. Passing loose fibrous materials through fluids.- In dyeing, bleaching, or similarly treating wool and other fibrous materials, the material is subjected, while immersed in treating liquor contained in a single bowl or tank, to a succession of frequently applied nips or squeezes of such pressure as to effect the removal of occluded air as well as other impurities. The tank a containing treating liquid and having a false bottom e is provided with pairs of nip rollers c, d operating, preferably simultaneously, beneath the surface of the liquid. The upper roller of each pair is provided with springs and preferably also with an adjustable scraper m. A series of inclined and perforated platforms f, up which the material is fed by oscillating arms or prongs (not shown), directs the material between the rollers, and the material, after leaving the tank, is passed through the roller g. Specifications 4747/77, 1263/87, and 1530/10 are referred to.
Patent GB-1394682-A (GB)
Title: Dyestuff dispersions
IPC: C09K23/00
Filed: 1972-06-29
Abstract: 1394682 Sulphosuccinic acid semi-esters HOECHST AG 29 June 1972 [30 June 1971] 30515/72 Heading C2C [Also in Divisions C3 and D1] Sulphosuccinic acid semi-esters of the general formula A-(X-O) n -CO-B wherein B is CH 2 -CH(SO 3 M)COOM or A is a group of general formula or a group of general formula wherein X is an alkylene group, R 1  is C 4 -C 14  alkyl, R 2  and R 3  are H or C 4 -C 14  alkyl, R 4  is C 6 -C 14  alkyl n is 2-25, z is 1-9 and M is H, an alkali metal atom or an equivalent of an alkaline earth metal atom are used as dispersing agents in dyestuff compositions. They are prepared by reacting an alkyl phenol or a novolak resin with n moles of alkylene oxide, esterifying the hydroxy group with maleic anhydride or maleic acid semi-ester and the product is then reacted with sodium sulphate to form the sulphosuccinic acid semi-ester. Tubulated examples are given in Examples A and B.
Patent GB-650607-A (GB)
Title: Improvements in or relating to the production of ferric oxide
IPC: G11B5/706
Filed: 1948-11-24
Abstract: g -Ferric oxide, suitable for example for the magnetic coating of a recording tape, is produced by reducing a -ferric oxide in the form of small crystals preferably of diameter of 1 micron or less, at 275-400 DEG  C., in an atmosphere of, say, hydrogen and/or carbon monoxide to ferrosoferric oxide, and oxidizing in air at 100-350 DEG C. at such a rate that an appreciable proportion of a -ferric oxide is produced.  The reduced product, prior to oxidation, may be cooled in the reducing atmosphere or, say, carbon dioxide, and may be damped prior to the admission of air. Oxidation may be effected by drying the damped product in an air oven, or by heating the dry oxide in a restricted supply of air. Specification 648,494 is referred to.
Patent GB-365075-A (GB)
Title: Improvements relating to the pistons of internal combustion engines
IPC: F02F3/00
Filed: 1930-10-13
Abstract: 365,075. Pistons. CAVENDER, A. W., 49, Eastbourne Road, Tooting, London. Oct. 13, 1930, No. 30555. [Class 122 (i).] In a piston of the type comprising a head 7 carrying the piston rings and secured to a skirt portion 4 by bolts 6 pitched beyond the centralizing boss 5, the bolts are countersunk flush with the piston head and project into but not through the solid crown of the skirt portion. The boss 5 may be formed on the head 7 to co-operate with a recess in the skirt crown and may be screw threaded. Alternatively the centralizing means may comprise a ring adapted to engage coaxial cylindrical recesses in the head and skirt. A flat plate 12 secured to the piston head retains the bolts 6 in position.