baber/WOPTO huggingface dataset:
Patent GB-1118859-A (GB)
Title: A method for producing radioactive tellurium
IPC: G21F9/10
Filed: 1966-10-11
Abstract: 1,118,859. Separating radio-isotopes. JAPAN ATOMIC ENERGY RESEARCH INSTITUTE 11 Oct., 1966 [12 Oct., 1965], No. 45278/66. Heading G6R. Radioactive tellurium is obtained by dissolving a fission product-containing irradiated actinide element or compound in an aqueous solution of a hydrohalic acid or a thiocyanate, introducing into the solution Ni, Cu, Bi, Hg, or Ag metal on which the Te deposits, separating the metal, and recovering Te therefrom. The metal may be dissolved in nitric acid, the solution evaporated, the residue dissolved in concentrated hydrochloric acid and the concentration adjusted to 0À1 to 0À5 N; Te is adsorbed from this solution on to a cation exchange resin in the hydrogen form and may be eluted therefrom with 1N or stronger hydrochloric acid. In examples the starting material is uranyl acetate which has been exposed to neutrons in a nuclear reactor. This material is dissolved in hydrochloric, hydrobromic, or hydrofluoric acid, or a solution of potassium, sodium, or ammonium thiocyanate. The metals used are copper, nickel, or mercury. Other methods of separating the Te from the metals are electrolytic deposition, liquid-liquid extraction by tributyl phosphate, and precipitation with carrier Te. Te-132 is useful as the mother nuclide of short half life I-132.
Patent GB-988897-A (GB)
Title: Epitaxial growth process
IPC: C22C21/02
Filed: 1962-12-03
Abstract: An epitaxial growth on a wafer of semi-conducting material, e.g. silicon, is effected by forming a coating of silicon oxide on the wafer as a mask, forming an opening in the mask, and heating the wafer to the temperature required for epitaxial growth while applying a semi-conducting material to the opening by vapour deposition, whereby epitaxial growth is limited laterally, to the periphery of the opening. Preferably heating of the cleaned silicon wafer is effected above 1050 DEG C., e.g. 1200-1650 DEG C., whereby the masking oxide is slowly evaporated in the presence of silicon vapour, and leaves a mesa-type epitaxial growth free from a surrounding mask. Acceptor or donor substances, e.g. B and Sb, may be added to build up junction resistors.
Patent GB-1020218-A (GB)
Title: A process for the acetylation of polyoxymethylenes of high molecular weight
IPC: C08G2/00
Filed: 1964-11-11
Abstract: A polyoxymethylene is reacted with acetic anhydride at 150 DEG  to 180 DEG  C., a pressure of 2 to 5 atmospheres and in the presence of an inert organic solvent of boiling point below the acetylation temperature.  The inert organic solvent may be used in an amount of 5 to 15% based on the acetic anhydride and may be acetone, methyl ethyl ketone, ethyl acetate, butyl acetate and di-n-propyl ether.  The acetic anhydride preferably has a content of at least 99.5% while a catalyst, e.g. sodium acetate, triethyl amine or other organic tertiary bases may also be present.  The process may be continuous or take place batchwise.
Patent GB-1064329-A (GB)
Title: Improvements in or relating to drawing of glass in sheet form
IPC: C03B15/04
Filed: 1962-12-05
Abstract: In the upward drawing of sheet glass, the outer strata are separated from the inner stratum and led away so that they do not interfere with the formation of the sheet from the inner stratum. The molten glass flows through a narrow, downwardly-sloping passage 20 to a draw-bar 8 and then upwardly to a position where the outer strata, which have become contaminated by contact with the refractory walls of the feed passages, can spread outwardly over shelves 10, 11 in the <PICT:1064329/C1/1> outer walls 2, 3 of the draw chamber, where they are protected against radiation by the overhanging walls and whence they are fed to the ends of the draw-bar or through heated platinum tubes out of the draw chamber.
Patent GB-1407316-A (GB)
Title: Iron-base alloys having high temperature strength
IPC: C22C38/44
Filed: 1973-10-02
Abstract: 1407316 Iron base superalloy J F BALDWIN 2 Oct 1973 [11 July 1973] 46035/73 Heading C7A An iron base alloy which is at least partly austenitic of composition:- Cr21 to 28% Ni 14 to 20% W 4 to 14% optionally Mo replacing up to 50 atomic per cent of the W Fe and impurities balance. The alloy may be heat treated at 1500F to 1700F for at least 2 hours and air cooled and may be utilized in the turbine section of gas turbine engines.
Patent GB-1451462-A (GB)
Title: Lacing device for stranding machines
Inventor: DAHMEN HANS PETER
IPC: D07B7/14
Filed: 1973-10-02
Abstract: 1451462 Stranding apparatus BERGMANN KABELWERKE AG 2 Oct 1973 [3 Oct 1972] 46061/73 Heading D1T The invention relates to a rope stranding apparatus of the kind in which a plurality of strands 2 are fed to a lay plate 4 and thence to a die 5 where the strands converge to form a cord 6, the cord 6 passing through a spinning head 7 where strand 9 from a spool 8 is wound around the cord 6. According to the invention components 4, 5, 7 and 8 are duplicated at 4', 5', 7' and 8' and are rotatable about a shaft 14 so as to swing the components 4', 5', 7' and 8' into the stranding axis and the components 4, 5, 7 and 8 away from the stranding axis. While one set of components 4, 5, 7 and 8 are used on strands 2 drawn from spools 1; the other components 4', 5', 7' and 8' can be re-equipped with strands 2' drawn from a further group of spools 1' and a fresh spool 8'. The product is wound up on a spool 12 mounted in a two for one twister 11. When the components 4', 5', 7' and 8' are swung into alignment with the stranding axis the new stranded product is connected to the tail-end of the previously stranded product and the process continued.  The spools 8, 8' may be supplemented with reserve spools 10, 10'. Stop motion.  Fig. 7 shows a strand 9 being delivered from a spool 8 via a spinning can 31 carrying two ring nipples 35, 36. The nipples 35, 36 are balanced by diametrically positioned nipples on the other side of the can. Whilst the strand is under tension it holds a hoop 48 in position I. When the strand breaks the hoop 48 swings under centrifugal action to position II in which it touches a contact 50 (shown swung into a horizontal setting) and so switches off the whole system. If the strand 9 is fed off via the diametrically opposite nipples the upper contact 50 in Fig. 7 is first swung downwardly into a vertical setting and the lower contact 50 is swung into a horizontal setting. The upper contact is thus held out of contact with the hoop 48 whilst in the broken line setting that is not numbered and when the strand breaks the hoop swings to setting II to touch the lower contact 50 the curved part of which will now extend towards the hoop 48.
Patent GB-993291-A (GB)
Title: Tablets, pills, pellets and the like
IPC: A61J3/10
Filed: 1962-12-06
Abstract: 993,291. Pharmaceutical tablets. T. L. COOPER. Dec. 6, 1962 [Dec. 6, 1961], No. 46164/62. Heading A5B. A fracturable article in the form of a pill, pellet and especially a tablet, having top and bottom surfaces is provided with a concavity in at least one of said surfaces and a breaking groove formed in said concavity whereby, upon application of downward pressure to the other of said surfaces, the article will fracture along said groove. The groove may be replaced by a zone of more frangible material than the material of the tablet &c., i.e. a zone of weakness. The zone of weakness may extend diametrically across the apex of the concavity, the walls of which are inclined upwardly to merge into the zone of weakness at their upper ends (Fig. 1) and, in a modification, may also be formed at their lower ends into a perimetral support for the article (Fig. 3). The top surface may be planar or convex. The top and bottom surfaces may each have a concavity containing a zone of weakness whereby the article may be broken into at least four fractions. Conveniently, the zone of weakness and concavity of the top surface is oriented substantially 90 degrees from the zone of weakness and concavity of the bottom surface (Figs. 9 and 10). Such a tablet may be provided with outwardly directed bevelled surfaces adjacent the perimeter of the concavity in both top and bottom surfaces (Figs. 12 and 13). The tablets may be of circular, elliptical or rectangular outline. They may be used for the administration of steroids, anticoagulants, diuretics, anti-diabetic drugs, anti-hypertensives and aspirins.
Patent GB-1506247-A (GB)
Title: Explosive-powered fastener-driving tool
IPC: B25C1/18
Filed: 1975-11-10
Abstract: 1506247 Cartridge powered nailing guns HILTI AG 10 Nov 1975 [20 Dec 1974] 46365/75 Heading B4C A silencer for a cartridge powered nailing gun in which a barrel 2 is movable relative to a housing 1 comprises a closed chamber 15 mounted on the barrel and housing which receives the explosive gases after firing by way of slots 14, 14a, 3a. The chamber is formed in two parts 16, 17 the part 16 having a heat and cold insensitive lamellar rubber or plastics seal thereon. The two parts are separable by axial movement of the barrel to allow gas escape. The silencer may be attached to a gun having no fastener during piston 10.
Patent GB-1282733-A (GB)
Title: Improvements in or relating to telecomunication systems
Inventor: SMITH PHILIP ANTHONY
IPC: H04Q11/04
Filed: 1969-09-22
Abstract: 1282733 Automatic exchange systems STANDARD TELEPHONES & CABLES Ltd 17 Sept 1970 [22 Sept 1969] 46665/69 Heading H4K In a T.D.M. telecommunication exchange a privileged subscriber or an operator at his request may set up a storage location in a marking store so as to set up a dedicated path, to which only the privileged subscriber has access, between that subscriber and another subscriber on a semi-permanent basis by sending an auxiliary signal with the designation of the other subscriber. The system allows say a senior general to set up and break down as required a hot line to his chief of staff over a military network. As described each subscriber has an associated storage location in which a sigma-delta speech sample bit is stored. A plurality of highways each leading to a group of output stores is provided and each highway has an associated cyclic store in which the gates to be opened to establish calls are stored. Each row of each store corresponds to one outlet (subscriber). The outlets are enabled in succession and the associated storage location stores the address of the inlet gate to be opened simultaneously. An addition bit is provided in each storage location and may be set to 1 to dedicate that path by a privileged subscriber or an operator at his request by the transmission of a code including a 1 bit in the same position. The class of service of the subscriber is checked before any change involving a dedicated connection is made. To establish a call over a pre-dedicated path the privileged subscriber transmits an additional dedicated path signal with the identity of the wanted subscriber.
Patent GB-1139147-A (GB)
Title: Silicone sizes
IPC: C03C25/40
Filed: 1966-10-19
Abstract: 1,139,147. Silicone sizes. DOW CORNING CORP. 19 Oct., 1966 [22 Oct., 1965], No. 46800/66. Heading C3T. [Also in Division B2K] A composition for sizing siliceous fibres comprises, by wt., (a) 100 pts. of an organopolysiloxane copolymer having a viscosity at 25 C. of not more than 10,000 cs., and consisting essentially of (1) (CH 3 ) 2 SiO units and (2) at least 1 unit of the formula wherein R is an alkyl radical of 1 to 6 C atoms, R<SP>1</SP> is an alkylene radical of 1 to 6 C atoms, R<SP>11</SP> is H, R or where Q is H or R, Y is an acid of the formula X.COOH, where X is H or an alkyl radical of 1 to 8 C atoms, n is 1, 2 or 3, m is 0, 1 or 2 and a is 0 or 1, there being from 4 to 300 times as many (1) units present as (2) units, (b) 0À05 to 5 pts. of an alkali metal, alkaline earth metal or quaternary ammonium compound having a pH of at least 8 when measured as not more than a 0À1 N aqueous solution, (c) 0 to 4000 pts. of starch, and (d) 0 to 20,000 pts. of a volatile diluent. Preferably, Y is hexanoic or formic acid, ingredient (b) is NaHCO 3 , and ingredient (d) is water. Examples of the above compositions are given.
Patent GB-1020290-A (GB)
Title: Improvements in high color carbon black pigments and process for making same
IPC: C09C1/56
Filed: 1962-12-12
Abstract: Carbon black having a diameter of at least 15 mm  and a surface area of 200-400 sq. m/gm. is treated with air at 950-1050 DEG  F. to produce a black having a diameter of 14-18 mm , a surface area of 430-600 sq. m/gm. and a volatile content of 6-12% and then as a suspension with aqueous nitric acid to increase its volatile content to 8-24%.  The concentration of black in the suspension may be 25-50%. The aqueous nitric acid may have a concentration of 10-70% and may have a temperature of up to 200 DEG  F.  Vaporous nitric acid and/or oxides of nitrogen may be introduced into an aqueous suspension of black.  The treated black may be heated at 200-300 DEG F. until dry.
Patent GB-1076280-A (GB)
Title: Improvements relating to bobbin supports
Inventor: MACKIE JOHN PRINGLE
IPC: D01H1/18
Filed: 1963-11-27
Abstract: 1,076,280. Bobbin holder. JAMES MACKIE & SONS Ltd. Nov. 27, 1964 [Nov. 27, 1963], No. 46898/63. Heading D1J. A skewer member for insertion in the central bore of a bobbin to support it in a creel comprises an integral moulding 1 of plastics having at one end an enlargement 3 for engagement with the end flange 5 of the bobbins, and surrounded at its other end by a ball bearing 11 of smaller diameter than the enlargement 3 and capable of being hooked onto a support so as to suspend the bobbin for free rotation. An enlarged central portion 6 centralizes the upper end of the bobbin. Tapered walls 4 may extend upwardly from the enlargement 3.
Patent GB-1119540-A (GB)
Title: Curing polyepoxide compounds
Inventor: SCHAEDLER HUGO
IPC: C08L63/00
Filed: 1965-11-05
Abstract: Polyepoxides are cured by polyamides prepared from tetrahydrotrcyclopentadienylenediamine with a dicarboxylic acid having 3 to 20 carbon atoms.  Other primary and/or secondary amines may have been used in addition to the tetrahydrotricyclopentadienylenediamine in the preparation of the polyamide. Conventional acidic and basic curing agents and solvents may be added to the curable mixtures.  Polyamides are prepared by heating to 150 DEG  or 180 DEG  C. and then to 260 DEG  C. under nitrogen whilst distilling off water a reaction mixture consisting of tetrahydrotricyclopentadienyl enediamine-diethylenetriamine and (1) 1-octylnonane-1,9-dicarboxylic acid; (2) adipic acid; (3) dodecanedicarboxylic acid; or (4) 1,2 - bisaminomethylcyclohexane and 1-octylnonane -1,9-dicarboxylic acid.ALSO:Sheet steel and sheets of glass are laquered with a xylene/butanol solution of an aliphatic polyglycidyl ether and a polyamide from tetrahydrotricyclopentadienylenediamine and a dicarboxylic acid.  The coatings are cured at room temperature or at 120 DEG C.
Patent GB-1083400-A (GB)
Title: Improvements in blank feeding devices
IPC: B65H3/38
Filed: 1965-11-08
Abstract: 1,083,400. Feeding sheets. KLIKLOK CORPORATION. Nov. 8, 1965 [Nov. 10, 1964], No. 47315/65. Heading B6B. Box blanks B are fed to folding mechanism from a pile, in which they are supported on edge by rods 11, Fig. 1, by suction nozzles 48 mounted on a carriage reciprocating between an upper position in which the nozzles pick up a blank and a lower position in which the blank is delivered to the folding mechanism, the carriage being guided by tracks 53 which are straight except at their upper parts 55, the latter being curved to cause the nozzles 48 to engage the leading blank as described below. The nozzles 48 are carried by rods 49, 50 attached to a bar 51 connected at its ends by links 58 to a rod 56, the parts 51, 56, 58 constituting the carriage. The rod and bar have rollers 52, 57 at their ends running in the tracks 53. An arm 60 fixed to the bar 51 has a roller 62 running in a vertical track 63, so that when the rollers 52, 57 enter the curved track part 55, the bar 51 is rotated and the nozzles 48 are moved into engagement with the leading blank. During the reverse movement, the bottom of the blank is moved away from the pile, and the blank is moved vertically downwards until its leading edge engages a stop (83, Fig. 2) when the nozzles come to rest and release the blank. The side edges of the blank pass between guide rods 64, 65 as the blank moves downwardly. Rods 59 connect the carriage to an arm (76, Fig. 8) which together with another arm (89) is fixed to a shaft (91). The arm (89) is connected by a link (90) to a lever (88) oscillated by a motordriven crank-pin engaging a slot therein. This arrangement causes the upward inoperative movement of the carriage to be faster than the downward movement. Vacuum is applied to and released from the nozzles 48 through a control valve (73, Fig. 7) having an operating member (74) acted upon by stops (75) on the arm (76). At the lower delivery-position of the nozzles, another vacuum-release valve (67, Fig. 2) near to the nozzles is opened by the action of a bracket (82, Fig. 3) on a valve arm (68, Fig. 2) so as to ensure that the vacuum is cut off at the moment the carriage has reached its lowermost position. The valve arm (68, Fig. 2) can also be actuated by a signal element (79) as described in Specification 987,711, to open the valve (67) and stop the feed of the blanks without stopping the machine. The front of the pile of blanks abuts against washers 13 on the ends of the rods 11, fingers 14, and brackets 15, 16 having shoulders 19 extending into slits 17, 18 in the blanks.
Patent GB-1152656-A (GB)
Title: Process for the Manufacture of Copolymer Dispersions
IPC: C08F218/04
Filed: 1966-10-24
Abstract: 1,152,656. Aqueous dispersion copolymerization. FARBWERKE HOECHST A.G. 24 Oct., 1966 [23 Oct., 1965; 11 June, 1966], No. 47493/66. Heading C3P. The aqueous dispersion copolymerization of vinyl chloride and a vinyl ester of a branched chain aliphatic carboxylic acid is effected in the presence of (a) one or more hydroxyethylcelluloses having a mean OC 2 H 4  content of 37- 50% by wt., (b) an oxyethylated alkylphenol containing 6-25 OC 2 H 4  units per molecule and (c) an anionic emulsifier. The copolymer is preferably of vinyl isobutyrate and may also contain an acrylic ester of a C 4 -C 10  alcohol, e.g. butyl or 2-ethylhexyl acrylate. Component (b) is preferably an oxyethylated nonyl phenol and (c) sodium lauryl sulphate. Regulators such as aldehydes, mercaptans and halohydrocarbons and buffering agents, sodium bicarbonate and/or acetate can be added. The catalyst can be potassium or ammonium persulphate, or the mixed peroxide of cyclohexyl carbonate and potassium sulphate. A mixture of hydrogen peroxide with ascorbic acid or sodium formaldehyde sulphoxylate may also be used. Monomers and catalyst can be added in stages. Plasticizers and pigments are added to the product to form paints.
Patent GB-1087757-A (GB)
Title: Chromating of aluminium surfaces
IPC: C23C22/44
Filed: 1965-11-09
Abstract: A chromate coating is formed on an aluminium surface by treating it with an aqueous acid solution containing hexavalent chromium, fluoride ion and at least 0.1g/l in total of an activating mixture of at least two anions selected from tungstate, molybdate, arsenate, vanadate and uranate, at least one being present in a minimum amount of 0.05g/l, the amounts of the anions being calculated as the respective metals.  Preferably the solution contains 0.5-10g/l CrO3 e.g. added as chromic acid and/or (di) chromates of Na, K or ammonium; 1.6-27g/l F e.g. added as HF, H2SiF6, HBF4 or Na, K or ammonium salts thereof; AlFx compound where x is an integer 1 to 6 in amount equivalent to 2.2-32g/l AlF3; and 0.1-4g/l of the above activating mixture e.g. added as two or more of the salts: Na2WO4.2H2O, Na2MoO4.2H2O, Na2HAsO4.7H2O, Na3VO4.10H2O and Na2UO4. Up to 0.5g/l of sulphate ions can be tolerated in the solution.  The pH may be adjusted to 1.1-2.3 by adding HCl or HNO3.  Fluoride may be replenished by adding HF buffered by H3BO3.  1-2g/l H3BO3 may be present in the initial solution.  After treating, the aluminium surface may be rinsed with CrO3 by spraying.
Patent GB-1436151-A (GB)
Title: Rotary pump of fluid motor
IPC: F04D15/00
Filed: 1973-10-11
Abstract: 1436151 Axial-flow and mixed flow pumps; turbines KLEIN SCHANZLIN & BECKER AG 11 Oct 1973 [14 Oct 1972] 47644/73 Headings F1C and F1T The inclination of rotor blades 21 of an axialflow or mixed flow turbomachine, e.g. a turbine or, as shown, a vertical pump, is effected by an electric servomotor comprising a stator 4 fast in the hub 3 of a flow divider 2 fixed in the pump inlet 1, and a rotor 8 on a shaft 9 acting via a reduction gear to adjust the blades, and enclosed within a can 7 positioned between the stator 4 and rotor 8 and fast with the pump impeller rotor 6 to define a liquid tight enclosure for the rotor. The reduction gear drives an axially-movable collar 14 on a screw shaft 12 and acting on offset pins fast with the blades via links 17. Again, the collar 14 may act on the blades via an annular groove, sliding limits or double shafts.
Patent GB-1374282-A (GB)
Title: Process for the production of phthalic anhydride
IPC: C07C51/31
Filed: 1971-10-13
Abstract: 1374282 Phthalic anhydride KOPPERS CO Inc 13 Oct 1971 [16 Oct 1970] 47728/71 Heading C2C Phthalic anhydride is obtained by oxidation of naphthalene or ortho-xylene by passing, at elevated temperature and pressure, a mixture of oxygen-containing gas and naphthalene or ortho-xylene through a bed of an appropriate catalyst to fluidize the catalyst, wherein (1) the contact ratio, (i.e. the weight of naphthalene or orthoxylene per weight of catalyst in a reactor at any given moment), of naphthalene or orthoxylene to catalyst is at least 4À0 Î 10<SP>-4</SP>, (2) the ratio of oxygen to naphthalene or orthoxylene is within the range of from 1À4 : 1 to 2À0 : 1 by weight, and (3) the naphthalene or orthoxylene loading is within the range of from 0À08 to 0À50 pounds of naphthalene, or orthoxylene, per hour per pound of fluidized catalyst. The process is suitably effected at a temperature of 320-400‹ C., a pressure of at least 25 p.s.i.g., preferably 38-500 p.s.i.g., and with the use of a catalyst which is, in the case of naphthalene being employed as starting material, vanadium pentoxide supported on silica gel. The oxygencontaining gas may be air, in which case the air to naphthalene or orthoxylene weight ratio should be within the range of from 6À0 : 1 to 8À5 : 1, oxygen-enriched air, and/or recycled tail gas plus air. A suitable form of apparatus for carrying out the process is described in a flow diagram.