baber/WOPTO huggingface dataset:
Patent GB-1476466-A (GB)
Title: Process for the production of linear water-soluble polymers  of very high molecular weight
IPC: B01D21/01
Filed: 1974-11-21
Abstract: 1476466 Water soluble polymers NOBEL HOECHST CHIMIE 21 Nov 1974 [21 Nov 1973] 50523/74 Heading C3P A water-soluble monomer is polymerized in an oil-in-water emulsion containing an organic solvent, which is a saturated aliphatic hydrocarbon, a cycloaliphatic hydrocarbon or an aromatic hydrocarbon which does not dissolve either the monomer or its resulting polymer and which forms with water an azeotrope boiling below 100‹ C. and a non-ionic emulsifying agent having an HLB between 8 and 13. The polymerization is initiated at a temperature lower than 35‹ C. by a redox system and during the course of the polymerization, inverts phase. Exemplified monomers are acrylamide and acrylic acid. The emulsifier is a polyoxyethylated alkyl phenol or fatty alcohol. The polymer can be recovered by azeotropically distilling the solvent/water mixture.
Patent GB-1452083-A (GB)
Title: Luminescent materials
IPC: C09K11/64
Filed: 1973-10-31
Abstract: 1452083 Luminescent materials and uses thereof PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 31 Oct 1973 [3 Nov 1972] 50536/73 Heading C4S An aluminate, gallate or aluminate gallate phosphor of #-alumina, #<SP>11</SP>-alumina or hexagonal ferrite type structure is activated by at least one of Mn, Eu, Pb, Tl, Ce, In, Tb, Dy and Bi, the phosphor being a ternary compound of composition within the area BPQR in Fig. 1 where A is at least one of ¢Na 2 O, ¢K 2 O, ¢Rb 2 O, ¢Cs 2 O, CaO, SrO, BaO, ¢La 2 O 3 , ¢Ce a O 3 , ¢Tb 2 O 3 , ¢Dy 2 O 3 , ¢Bi 2 O 3 , EuO, PbO, ¢Tl 2 O and ¢In 2 O, wherein when one or more of the activator elements Eu, Pb, Tl, Ce, In, Tb, Dy or Bi are present, the oxide(s) of these activator element(s) form at least part of oxide A, B is Al 2 O 3  and/or Ga 2 O 3 , up to 25 mol per cent of which may be replaced by Sc 3 O 3 , and therein C is one or more of MgO, ZnO, BeO, ¢LiAlO 2  and ¢LiGaO 2 , the molar content of A being >0 and <3, the molar content of C being >0 and <0À6, and when present the Mn concentration is not more than 10 at. per cent calculated w.r.t. the total no. of metal atoms from oxides B and C. Many specfic phosphors are detailed (e.g. Tables I-XII) including coactivated materials, e.g. Mn with Eu or Ce or Th or In and Ce-Tb, or Ce-Dy. Synthesis may be by heating oxides or compounds decomposable to oxides on heating at least once between 1100 C. and the m.p. of the compounds in oxidizing, neutral or a weakly reducing atmosphere. With Eu and/or Mn a final heating in a weakly reducing atmosphere ensures a bivalent state. A flux soluble in water may be used. Replacement of a part of A1 oxide by Al fluoride increases grain size, and correspondingly for MgO, with a last treatment in a water vapor atmosphere. Synthesis may also be by precipitation from solutions, e.g. in an aqueous medium. Variations of heat treatments are discussed and detailed preparation examples included. Elements in excess of stoichiometry may be present. Applications include luminescent screens, high and low p. Hg lamps (e.g. for treating hyperbilirubinemia and for electrophotography), low p Cd lamps and c.r.t.s. Excitation may be u.v. (short and long wavelength) cathode rays, and X-rays. High temperature operation is discussed.
Patent GB-1363526-A (GB)
Title: Solid enzyme complexes
IPC: C12N11/14
Filed: 1971-11-01
Abstract: 1363526 Modified clay ENTERPRISE DE RECHERCHES ET D'ACTIVITIES PETROLIERES (ELF) 1 Nov 1971 [3 Nov 1970] 50671/71 Heading C1A [Also in Division C3] An activated clay (bentonite), used to react with enzymes to produce enzyme-clay complexes is obtained by treatment of the clay with a cyanogen or cyanuric halide (e.g. chloride). The treatment may comprise suspending the clay in an organic solvent solution of the halide (e.g. in CCl4, CHCl3 or dioxane) and then separating the activated clay from the organic solution.
Patent GB-1405761-A (GB)
Title: Intrauterine contraceptive devices
IPC: A61F6/14
Filed: 1972-11-07
Abstract: 1405761 Intra-uterine contraceptive devices A H ROBINS CO INC 7 Nov 1972 51336/72 Heading A5R An intra-uterine contraceptive device 20 comprises a ring 22 formed by a nose portion 24 and a tail portion 26, joined by two side portions 28, 30, and extending outwardly from each of the side portions, at least one scalloped appendage 40 or 42 providing protrusions e.g. 44, 46 and between the protrusions, re-entrants, e.g. 56 which do not reach .the ring. As shown the appendages 40, 42 comprise thin flexible double walls which enclose sealed hollow chambers (41, 43) Fig 2 (not shown) A thin membrane 32 is attached to the ring. Apertures 34, 36 facilitate insertion of the device with a stick type inserter. The device is wider at the nose portion than at the tail portion. The cross-section of the ring is generally rectangular with rounded corners. The thickness of the ring may be increased in the nose and tail portions to enable the ring to buckle first in the side portions. Compressive side. forces cause the tail portion to deflect out of the plane of the ring. Retention grooves 68 and 70 enable a line 72 to be tied to the nose portion. The double walled appendages may be open adjacent the nose portion or the tail portion. The external appendages may take the form of a flat single walled member; more than one external appendage may be provided on each side portion. In the embodiment of Fig 3 (not shown), each of the side portions (84, 86) has an external appendage (88, 90) in the form of a flat single walled member lying in the plane of the ring (82) and an external double walled appendage (92, 94) which is inclined to the plane of the ring. The membrane (96) comprises double walls (98, 99) which confine a sealed chamber. Alternatively the space between the double walls may be open at apertures similar to the apertures 34, 36 of Fig 1. In the embodiment of Fig 5, (not shown), the central membrane (32') is suspended by narrow membrane bridges (100, 102). The device (120) of Fig 6, (not shown), is provided with an internal appendage (128) having a scalloped edge. The device preferably consists of an integrally moulded plastics material mixed with a radioopaque material. The device may be provided with a thin coating of e.g. gold.
Patent GB-1118233-A (GB)
Title: Magnetic parts sorter
IPC: G01R31/18
Filed: 1965-12-03
Abstract: 1,118,233. Magnetic tests. A.K. LITTWIN and D.F. LITTWIN. Dec. 3, 1965 [Jan. 12, 1965], No. 51454/65. Heading G1N. Magnetisable articles (the magnets for drag-cup speedometers) are sorted by magnetising them, measuring the remanent flux, automatically removing those with a remanence below a datum value, and de-magnetizing both the accepted and rejected articles. The articles are fed from a storage hopper Figs. 1 and 2 (not shown) by a vibrating conveyer on to a conveyer belt which carries them successively over a D. C. energized, magnetizing coil (64), Fig. 5 (not shown), over the rotating armature (70) of a flux meter Fig. 6 (not shown), past a reject chute Fig. 7 (not shown) into which they may be propelled by a jet of compressed air controlled by a solenoid valve (136), and over an A. C. energized de-magnetizing coil (82) before dropping off the end of the conveyer. The rejected articles are de-magnetized by a coil (80) which surrounds the reject chute. The solenoid valve (136) is normally energized to reject any item on the conveyer, but is deenergized by opening the contacts (134b) of relay (134) in the anode circuit of a thyratron (124) which fires when the rectified output voltage of the flux meter (70) exceeds a pre-set reference voltage. Under these conditions the solenoid valve (136) is kept de-energized by opening the contacts (144c) of a relay (144) which is controlled by a time delay thyratron (142) the time constant of which can be varied by capacitor (146) so that after an acceptable article has been tested, the solenoid valve (136) remains de-energized until just after the next article reaches the flux meter. The voltage applied to the capacitor (146) may be varied simultaneously with the speed of the conveyer belt Fig. 9 (not shown).
Patent GB-1273188-A (GB)
Title: Improvements in or relating to the production of semiconductor arrangements
IPC: C30B29/40
Filed: 1969-10-21
Abstract: 1,273,188. Semi-conductors. SIEMENS A.G. 21 Oct., 1969 [22 Oct., 1968], No. 51522/69. Heading C1A. The formation of an epitaxial layer of a semiconductor material on a plate shaped crystalline substrate is accomplished by depositing a layer of said semi-conductor material on to a heated carbon carrier by pyrolysis of volatile compounds of the elements of said semi-conductor and using this deposited layer as a source for depositing said semi-conductor material on to the substrates by short path, sandwich epitaxial deposition using a gas transfer reaction. The carrier may be heated inductively during the pyrolysis and epitaxy steps and may also be heated by radiation during the epitaxy step The specified semi-conductor materials are A<SP>III</SP> B<SP>V</SP> compounds, gallium arsenide and phosphide, and indium arsenide. Details claimed include types of volatile compound, doping agents, and transport gas mixtures.
Patent GB-1271830-A (GB)
Title: Compositions of phenol-formaldehyde resins and phenolated polymers of isoprene and a process for the addition thereof to ethylene-propylene polymers
Inventor: SOLDATOS ANTHONY CONSTANTINE
IPC: C08L61/06
Filed: 1969-10-21
Abstract: 1,271,830. Tackifiers for EP rubbers. UNION CARBIDE CORP. 21 Oct., 1969, No. 51625/69. Headings C3P and C3R. A composition comprises a phenolated or thiophenolated polymer of isoprene having a molecular weight of 500 to 30,000 and containing less than 50% internal unsaturation and a phenol-formaldehyde resin. The composition may be added to EP and EPT rubbers to improve their tack. The composition can be added to the rubber as a solution in mineral oil. Tack can be enhanced by exposure to a fluorescent light.
Patent GB-1148139-A (GB)
Title: Apparatus for moving newly formed glassware articles onto a continuously moving conveyor
IPC: C03B9/453
Filed: 1967-11-14
Abstract: 1,148,139. Endless conveyers. EMHART CORP. 14 Nov., 1967 [29 Dec., 1966], No. 51744/67. Heading B8A. Pairs of glass articles G, G are moved from a dead plate 12 of a forming machine (not shown) on to a conveyer 10 by a member 60. The latter is connected to links 52 mounted on respective pivots on a part 14 which is rotatable about a vertical axis 16. The lever 50 has an extension coupled to a piston 42 of a pneumatic cylinder motor 40. Ports 38, 43, connecting bottom and top spaces of the cylinder 40 are connected to pressure air by phase registry of the ports as the part 14 rotates relative to ports in a fixed part 15 of the apparatus. Rotation of the part 14 is brought about by a cam 22 acting on a follower 24 connected to chain gearing 28, 30 with a chain 32 and spring 34 providing return movement. The arrangement is such that the member 60 commences from a retracted position (dash lines in Fig. 1) and is projected into engagement with the articles G, G on the dead plate 12. During this movement the height of the member 60 varies slightly as shown by arrows indicating the path in Fig. 3. This is to minimize the possibility of overturning the articles G, and is brought about by the geometry of the linkage 50, 52. The member 60 is then turned through 90 degrees to transfer the articles G, G, on to the conveyer (Fig. 2) and finally retracted and rotated back 90 degrees to recommence the cycle.
Patent GB-1196440-A (GB)
Title: Method of Modifying the Physical Characteristic of the Distribution of the Components of a Fluid between the Fluid and a Sorbent Material
Inventor: PURNELL JOHN HOWARD
IPC: G01N30/88
Filed: 1967-11-14
Abstract: 1,196,440. Chromatographic sorbents. FOXBORO CO. 14 Nov., 1967, No. 51851/67. Headings B1L and B1X. A sorbent system, which is of use in both gas and liquid chromatography, and which exhibits an overall partition coefficient with respect to the gaseous or liquid mixture to be separated which is constant over a finite range of temperature, comprises a weighted combination of two sorbents selected so that the temperature-dependent adsorption or solution characteristics of the one are balanced by those of the other over the range of temperature in question. Columns containing the sorbent system may consist of the two sorbents in series, in striated bands along the column, or in intimate mixtures. Alternatively, the first sorbent may provide a support for the second sorbent. An experimental method is detailed by means of which the proportion of sorbents in the weighted combination may be determined. In an example, various columns comprising sorbents weighted amounts of squalane and a mixture of methyl stearate and n-octadecanol supported on firebrick were employed using benzene and acetone as test vapours to determine characteristics and then to separate mixtures of air, isopentane, npentane, acetone and benzene.
Patent GB-1509109-A (GB)
Title: Thiazine derivatives and process for preparing the same
IPC: B41M5/136
Filed: 1976-12-13
Abstract: 1509109 Thiazine compounds FUJI PHOTO FILM CO LTD 13 Dec 1976 [23 Dec 1975] 51979/76 Heading C4P The invention comprises thiazine compounds which form a colour on contact with electron accepting materials and have the general formula wherein A<SP>1</SP> and A<SP>2</SP> are optionally substituted aryl or heterocyclic groups or A<SP>1</SP> and A<SP>2</SP> may be linked to form a heteroacylic ring or a fluorene ring, at least one of A<SP>1</SP>, A<SP>2</SP> or (A<SP>1</SP> +A<SP>2</SP>) being an electron donating aryl or heterocyclic group, B is an optionally substituted aromatic hydrocarbon or heterocyclic ring and Y is H or an aliphatic, aryl, heterocyclic, amino, amido, oxy (as defined) or a thio group. A<SP>1</SP> and A<SP>2</SP> are preferably substituted aryl or A<SP>1</SP> and A<SP>2</SP> together with the C atom may form a 9H-xanthene, a 10-substituted 9, 10- dihydroacridine, 9H-thioxanthene, a 1-substituted 4H-chromeno (2,3-c) pyrazole, an 11H-benzo (b) thieno (3,2-b) chromene, a 6-substituted-5-oxo- 5,6-dihydro-12H-chromene (2,3-c) isoquinoline, a 4H-chromene or a 2H-chomene ring. They are prepared by oxidising a thioamide of the general formula wherein A<SP>1</SP>, A<SP>2</SP>, B and Y are as above with as oxidising agent a metal oxide, an inorganic or organic peroxide under acid conditions at - 10‹C to 50‹C or a quinone at 40‹-100‹C. The compounds are used as colour formers for pressure or heat sensitive copying papers, light sensitive papers, ultrasonic recording papers, electrostatic and electrothermic recording papers, inks for stamps and ball point pens, crayons, typewriter ribbons and pressure detecting papers.
Patent GB-1285388-A (GB)
Title: Azo- and azoxy-benzenes
IPC: C07C245/08
Filed: 1970-11-02
Abstract: 1285388 Liquid crystal compositions; dyes and pigments MERCK PATENT GmbH 2 Nov 1970 [28 March 1970] 52048/70 Heading C4P [Also in Division C2] The invention comprises compounds of the formula where X is an azo or azoxy group, R is a straight chain alkyl group with 1-8 carbon atoms and R<SP>1</SP> is a straight chain alkyl or alkanoyl group with 1-10 carbon atoms. The compounds may be prepared (1) by etherifying or esterifying the corresponding phenol derivative, (2) by reacting together nitroso benzene and aniline derivatives, (3) by reacting a mixture of two aniline derivatives or a hydrazo derivative with an oxidizing agent, (4) by reducing a mixture of two nitrobenzene derivatives, (5) by diazotization and coupling, (6) by reacting a nitrosobenzene derivative with a phenylhydroxylamine derivative or (7) by oxidizing the azo compound to the azoxy compound. The compounds may be used in nematic compositions.
Patent GB-1436819-A (GB)
Title: Battery charger control circuit
IPC: H02J7/10
Filed: 1974-12-02
Abstract: 1436819 Battery charger control LESTER ELECTRICAL OF NEBRASKA Inc 2 Dec 1974 [2 Jan 1974] 52065/74 Heading H2H A battery charger control circuit comprises a charging run termination circuit for terminating charging runs when the rate of charging of the battery falls below a preset rate, and a turn-on circuit for periodically initiating new charging runs, with at least one counter being alternately connected by a control into the termination circuit for use in measuring the rate of charging, and into the turn-on circuit for use in measuring the time since a run has been terminated. As described a battery 14 is charged by means 12 which is controlled by a switching circuit 22. During a charging run the battery voltage is applied to one terminal of a comparator 55 and that from the output of D1A converter 58 controlled by a counter 60. Whenever the battery voltage rises above that of the converter 58 a pulse is supplied by circuit 85 to trigger multivibrator 62 to increment the counter 60. When, during a charging run, the counter reaches a predetermined intermediate value, a multivibrator 29 is energized and supplies, e.g. 1-72 Hz pulses to a counter 73 via gate 77. This counter is reset to zero by each output from circuit 85 and hence measures the time between attainment of successive energy levels by the battery. If this time reaches, e.g. 40 minutes, the counter 73 overflows and actuates detector 31 to cause circuit 22 to switch the charger off. Multivibrator 62 is now energised to apply, e.g. 10 Hz pulses to the counter 60 which applies a pulse each time it fills via conductor 28D and gate 77 to counter 73. If a charging run has not been manually initiated in a period, e.g. 2¢ days, the counter 73 will fill and cause circuit 22 to initiate a charging run via gate 74. When the battery is removed from the charger relay contact bounce within circuit 22 is prevented by a logic circuit 76 which releases the relays. The counters 60, 73 are reset at the end of a charging period by a circuit 89. Details of the circuits 22, 85, 89, 76 are supplied, Fig. 2 (not shown) and Specication 1,414,359 is referred to.
Patent GB-1427739-A (GB)
Title: Press for forming sheet material
IPC: B30B1/00
Filed: 1972-11-13
Abstract: 1427739 Cupping METAL BOX Ltd 12 Feb 1974 [13 Nov 1972] 52209/72 Heading B3Q Sheet is worked by a press comprising a ram 8A, Fig. 3, on a crosshead 7 and a crank 13 carrying a gear 4 meshing with a stationary internal annular gear 5, the crosshead 7 being pivoted at a point on the P.C.D. of gear 4 and the P.C.D. of gear 5 being twice that of gear 4 so that the crosshead reciprocates diametrically of gear 5. As applied to forming cans from cup-shaped blanks, or from a strip by blanking, cupping and wall-ironing, a first form of press has a ram 8A, 8B extending from A.C. side of the crosshead 7 and a die-set for each ram. A crank-and-gear drive 13, 4, 5 is provided on each side of the crosshead 7 and balance weights 12 for the composite gear-andlink units 4, 11 qhich receive the crank pins 13 and crosshead pins. The crank-shafts 14 are balanced by weights 14A and are driven through gears 17 by a shaft (19), Fig. 4 (not shown), mounting a pulley (21) and a clutch (20). In another form, Fig. 5A, the crank-shafts carry cams 22, 23 operating followers 24, 25 for driving a blanking slide 26 and a cupping slide 27: followers 24, 25 on the right-hand side (Fig. 5A) effect return movements. Rollers (28), Fig. 6 (not shown), on the crosshead run on guides (29) and further rollers (30) guide the rams 8A, 8B. Steady rollers 33, Fig. 7B, are also provided at the die unit and are mounted on levers, Fig. 7A (not shown), so that they may be separated by a cam (34) to allow passage of the workpiece. The form shown in Fig. 8 operates first to blank and then to hold the blank by means of the die 35. Next the blank is cupped by the punch 37 which then acts as a holddown as the ram draws the cup through successive dies 40, 45, 46. The can is now ejected as the end of an ejector 50 is kicked by a link (51), Fig. 5c (not shown); ejection may be assisted by compressed air fed through the ram.
Patent GB-1213309-A (GB)
Title: Traverse track assembly
Inventor: FORD JAMES ARTHUR
IPC: E05F15/60
Filed: 1967-11-16
Abstract: 1,213,309. Elevated railways; electric railways. KIRSCH CO. 16 Nov., 1967 [7 Feb., 1967], No. 52270/67. Addition to 1,137,723. Heading B7L. [Also in Divisions A4 and H2] An improvement in the transverse track assembly claimed in Claim 13 of the parent Specification consists in that the rear wall 87, Fig. 2, of the hollow tracks is non-magnetic and electrically conductive. The field generating means 144 and a quantity of ferromagnetic material 129 disposed on opposite sides of the wall 87 are connected by electrical insulating material 127, 123 extending through a slot 83 in the track. In another embodiment the material 129 is disposed within the track and the means 144 outside the track.
Patent GB-1359880-A (GB)
Title: Production of 4,4,-diaminodicyclohexyalkanes
Filed: 1971-11-11
Abstract: 1359880 Hydrogenation catalysts BADISCHE ANILIN- & SODA-FABRIK AG 11 Nov 1971 [12 Nov 1970] 52453/71 Heading B1E [Also in Division C2] A catalyst containing 18% wt. of cobalt, 2.5% wt. of copper, 0.7% of manganese and 0.5 wt. phosphoric acid (as P 2 O 5 ) on aluminium oxide is prepared by twice impregnating aluminium oxide strands with a mixture of aqueous solutions of the salts of the metals and phosphoric acid, spraying on the remainder of the solution while hot, drying the catalyst and and annealing at 800C. The manganese in this catalyst may be replaced by chromium. A catalyst containing 10% wt. of Co, 8% wt. of Ni, 1.5% wt. of Cu, 0.7% wt. of Mn and 0.5% wt. of phosphoric acid on aluminium oxide is prepared by adding Na 2 CO 3  solution to a solution of the metal salts containing phosphoric acid and suspended aluminium oxide powder to precipitate the metal salts on the aluminium oxide, separating the precipitate, washing it free from alkali, drying and heating in a muffle furnace to remove carbonate, shaping the resulting catalyst and annealing at 650C.
Patent GB-1083500-A (GB)
Title: Process and apparatus for the separation of fructose and glucose
IPC: C13B20/14
Filed: 1964-12-28
Abstract: Fructose and glucose are separated from a syrup containing them by:- (1) sequentially admitting predetermined volumes of said syrup and water to a column charged with a water-immersed bed of an alkaline earth metal salt of a cross-linked nuclearly sulphonated polystyrene cation exchange resin;  (2) separating the effluent from the column sequentially into at least the fractions:-  (i) sweet water (I) consisting of dilute-glucose-rich solution,  (ii) concentrated glucose rich solution.  (iii) recycle (I) consisting of concentrated glucose-rich solution highly contaminated with fructose,  (iv) recycle (II) consisting of concentrated fructose-rich solution highly contaminated with glucose,  (v) concentrated fructose-rich solution, (vi) dilute fructose-rich solution;  (3) admitting sequentially to the column at least the fractions:-  (xi) recycle I,  (xii) predetermined volume of said syrup,  (xiii) recycle (II),  (xiv) predetermined volume of water;  (xiv) predetermined volume of water; (4) repeating steps 2 and 3 in a cyclic manner. It is preferred to submit the effluent dilute fructose-rich solution (vi) to recycling and still more preferred to divide this effluent into fractions (vi)(a) and (vi)(b) of which the former is recycled. The glucose-rich solution (ii) may be evaporated, the evaporated liquor seeded with glucose crystals, the temperature lowered to facilitate crystallization, and the resultant crystals separated from the mother liquor. Similarly, the fructose-rich solution may be evaporated, seeded and crystallized to yield fructose.ALSO:Fructose and glucose are separated by ion-exchange with a water immersed bed of an alkaline earth metal salt of a strong cation exchanger, with recycling of various fractions (see Fig. 1, not shown).  Fractions are collected in storage tanks which are raised to an elevated temperature.