baber/WOPTO huggingface dataset:
Patent FI-955319-A (FI)
Inventor: KIEFER GARRY E
IPC: A61K51/04
Filed: 1995-11-06
Abstract: 2-Pyridylmethylenepolyazamacrocyclophosphonic acid compounds and their derivatives are disclosed which may form inert complexes with Gd, Mn or Fe ions. The overall charge of the complex can be varied to alter the in vivo biolocalization. The complexes are useful as contrast agents for diagnostic purposes.
Patent FI-990809-A (FI)
Inventor: KRAUSE OUTI
IPC: C07C41/06
Filed: 1999-04-13
Abstract: The present invention concerns a process for the etherification of olefins. According to the process, an olefin or a mixture of olefins is reacted with an alcohol or a mixture of alcohols in the presence of a catalyst. According to the invention, a catalyst is used which comprises a grafted polymer fiber, there being functional groups attached to the grafted polymer fiber. By means of the invention it is possible to speed up the etherification process of, in particular, heavier ethers.
Patent GB-546716-A (GB)
Title: Production of improved coatings on fabric supports
IPC: D06M15/244
Filed: 1941-01-25
Abstract: 546,716. Synthetic resins. McGILL, J. H., MORGAN, L. B., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Jan. 25, 1941, Nos. 1000 and 14128. [Class 2 (iii)] [Also in Group VIII] Fabrics are first coated or impregnated with an aqueous dispersion comprising polyvinyl chloride and a plasticizing agent, the water is removed, e.g. by hot air drying, and then a mixture of polyvinyl chloride and a plasticizing agent is applied, e.g. by spreading, and heated until gelatinized. The base coating may be calendered. The dispersion may contain watersoluble thickening agents, e.g. methyl ethyl cellulose, gum tragacanth, gum arabic, polyvinyl alcohol, partially-saponified polyvinyl acetate or the sodium salt of a methacrylic acid-methyl methacrylate inter-polymer. Suitable plasticizers are tricresyl phosphate, dibutyl phthalate, benzyl benzoate, p-dichloro-benzene or chloro-naphthalenes. The coatings may comprise emulsifying agents, pigments, fillers and heat' stabilizers such as zinc or mercury or lead mercaptides or 2 : 4-dihydroxyquinoline or metallic salts thereof. Instead of polyvinyl chloride interpolymers thereof with acrylic acid esters or vinyl esters may be used. Specifications 469,391, 500,298, 542,141 and 542,505 are referred to.
Patent GB-627408-A (GB)
Title: A fastening device for condensers or the like
IPC: H01H85/20
Filed: 1947-01-11
Abstract: 627,408. Spring clips. JENKINS, R. G. C. (Kost, H. W.). Jan. 11, 1947, No. 1031. [Class 44) A holding device for condensers, fuses and the like comprises a pair of resilient arms 5 extending upwardly from a base 6 having flanges 14 adapted to slide beneath ears 15 struck from the supporting panel 7 the arms being provided with fingers 17 whose ends 18 lie slightly below the plane of the base 6 when the clip is detached from the panel, but when in use press against the support to resist spreading of the arms. Spring fingers 12 may be struck from the upper half of the arms to ensure a tighter grip on the object 9 and the free ends of the arms are bent back upon themselves to form finger pieces 10. A screw receiving hole 21 is provided for use when the panel 7 has no ears 15.
Patent GB-387819-A (GB)
Title: Process for the preservation of wood, straw and the like
IPC: B27K3/28
Filed: 1932-01-13
Abstract: Colloidal solutions of arsenic trisulphide are prepared by passing hydrogen sulphide into aqueous solutions of arsenic trioxide partially neutralized with ammonia.  Sugar, such as beetroot or cane sugar, may be added to stabilize the sol.  By controlling the amount of hydrogen sulphide passed, unconverted arsenic trioxide may remain in the solution.
Patent GB-534417-A (GB)
Title: Method of electric induction heating
IPC: H05B6/10
Filed: 1940-01-17
Abstract: 534,417. Electric induction heating. AJAX ELECTROTHERMIC CORPORATION. Jan. 17, 1940, No. 1043. Convention date, Jan. 26, 1939. [Class 39 (iii)] In a method for the inductive heating of tubes 6, an elongated oval coil 1 is used, of such length that the desired length of tube is heated. The tube is placed first at one side of the coil where the coupling is close, and is moved in steps towards the middle where the coupling is weaker and the heating is less, and finally is moved to the other side where the coupling and heating are again greater. The coil may be tilted to facilitate these movements, or a conveyer belt 7 may be used. The heating of successive tubes is completed in regular order.
Patent GB-287982-A (GB)
Title: The manufacture of active carbon from soot
IPC: C01B32/336
Filed: 1927-01-13
Abstract: 287,982. Hughes, G., (Fujisawa, T.). Jan. 13, 1927. Carbon.-Active carbon is obtained by heating the soot prepared by incomplete combustion of oils, fats, waxes, resins, or high carbon content gases to a dull red heat and exposing it to the atmosphere with constant stirring in a thin layer, e.g., two inches or less. The soot is kept at a dull red heat and the stirring maintained until maximum purity is reached, when it is quickly transferred to a closed vessel and cooled. Specification 207,570 is referred to.
Patent GB-142422-A (GB)
Title: Improvements in fret-cutting machines
IPC: B23D49/00
Filed: 1920-01-13
Abstract: 142,422. Hobbies, Ltd., and Jewson, H. Jan. 13, 1920. Reciprocating-saw machines.-Relates to fretsawing machines, and comprises means for angularly adjusting the work table and for raising the upper arm of the saw frame automatically when a saw-blade breaks. The table F is mounted on an arm E of a bracket D secured to the tool tray C and is adapted to turn upon vertically-adjustable pivots J, J<1> and upon a curved enlargement E<2> of the arm E which has a tapered hole E<1> to receive the clamping-screw G in different angular positions. When free, the upper arm L of the saw frame is raised by a spring K<2> as far as permitted by a stop K<1> on the back arm of the frame.
Patent GB-1456482-A (GB)
Title: Diethylaminohydroxypropyl derivatives of cellulose of structure  modification i or ii and a method of preparing same
IPC: C08B11/20
Filed: 1975-01-11
Abstract: 1456482 Diethylaminohydroxypropyl cellulose KAUNAS POLITEKHNICHE INST 11 Jan 1975 1223/75 Heading C3A The water adsorptivity and reactivity of diethylaminohydroxypropyl cellulose is improved by treating with glacial acetic acid or an aqueous solution of it. The cellulose derivative may have structure I or structure II (as herein defined); in the first case the maximum nitrogen content is 1À6% by weight, in the second 6À3% by weight. After treatment the water adsorptivity of type I is 7À5 to 14% and of II 11À5 to 36% by weight. In Examples 18 and 19 material so treated is acetylated and it is stated to be more reactive than untreated material.
Patent GB-1463985-A (GB)
Title: Vitamin d derivatives and process for their preparation
IPC: A23K1/165
Filed: 1974-01-10
Abstract: 1463985 Dihydroxy steroid-5-enes and vitamin D derivatives RESEARCH INSTITUTE FOR MEDICINE & CHEMISTRY Inc 10 Jan 1974 [10 Jan 1973 21 May 1973] 1257/74 Headings C2V and C2U In a process for the production of a 1α,3#- dihydroxysteroid - 5 - ene or a 1α - protectedhydroxyl derivative thereof, a corresponding 1α - hydroxy- or 1α,2α - epoxy - steroid - 4,6- dien - 3 - one or a 1α - hydroxy or 1α,2α- epoxy-steroid-4-ene having a readily eliminatable 6-substituent or a 1α-protected-hydroxyl derivative is reduced with an alkali metal or an alkaline earth metal in ammonia or a liquid amine in the presence of a proton source, e.g. an ammonium or amine salt or an alcohol. The steroid of the starting material may be a cholestene and the resulting 1α,3# - dihydroxycholesta-5-ene may be dehydrogenated to 1α,3# - dihydroxy - cholesta - 5,7 - diene which may be subjected to actinic radiation to obtain 1α-hydroxyprevitamin D; this may be isomerized by heating to 1α-hydroxy vitamin D, which in turn may be isomerized with iodine to the trans-isomer or may be subjected to further actinic radiation to produce the corresponding 1α-hydroxy-tachysterol derivative, which on reduction yields the corresponding 1α-hydroxy- 9,10-dihydrotachysterol derivative. In examples cholesterol is reacted with dichlorodicyanoquinone to obtain cholesta-1,4,6-trien-3-one which is oxidized with hydrogen peroxide to 1α,2α-epoxycholesta-4,6-dien-3-one and this is reduced with lithium metal in liquid ammonia containing ammonium chloride to 1α,3#-dihydroxycholest-5-ene; 1α2α-epoxycholesta-4,6- dien-3-one is reduced with zinc dust to 1α- hydroxycholesta - 4,6 - diene - 3 - one and this is converted to its trimethylsilyl ether and reduced with lithium metal, liquid ammonia and ammonium chloride to 1α,3#-dihydroxycholest- 5-ene; 1α,3#-dihydroxycholest-5-ene is converted to 1α,3#-dibenzoyloxycholest-5-ene and then reacted with dibromodimethylhydantoin to obtain 1α,3# - dibenzoyloxycholesta - 5,7 -diene which was hydrolysed and then irradiated to obtain 1α-hydroxy vitamin D 3 ; 25-hydroxycholesterol is reacted with dichlorodicyanoquinone to form the trienone and this is reacted with hydrogen peroxide to obtain 1α,2α-epoxy- 25 - hydroxycholesta - 4,6 - dien - 3 - one which is reduced with zinc dust to 1α,25-dihydroxycholesta - 4,6 - dien - 3 - one, converted to the trimethylsilyl ether and reduced with lithium and ammonia to 1α,3#-25-trihydroxycholest-5- ene; 1α,3#-diacetoxycholesta-5,7-diene is irradiated to the previtamin which is contacted with iodine to obtain the tachysterol derivative and, is also heated to obtain 1α-hydroxy vitamin D 3 , which is converted to 5,6-trans-vitamin by contact with iodine; cholest-5-ene is acetylated, brominated and dehydrobrominated to obtain 1α,3#,25-triacetoxycholesta-5,7-diene which is irradiated, heated and hydrolysed to 1α,25- dihydroxy vitamin D 3 , which on contact with iodine forms the trans-isomer.
Patent GB-832036-A (GB)
Title: Improvements in or relating to magnetic recording and reading apparatus
Inventor: DIRKS GERHARD
IPC: G11B5/105
Filed: 1958-01-15
Abstract: 832,036. Magnetic recording and reproducing heads. DIRKS, G. Nov. 24, 1958 [Jan. 15, 1958], No. 1368/58. Class 40 (2). A magnetic record head assembly comprises a non-magnetic casing having a slot to accommodate the polepieces of a head, and another slot in which a wedge is inserted to deform the casing sufficiently to clamp the polepieces in position in the first slot. The description and Figures show an embodiment in which two heads 3 and 4 are clamped between mounting plates 2 and 7 and inserted into a slotted channel-like casing 1. A large central slot accommodates both pairs of pole-tips 11, 12 and 13, 14 and a non-magnetic spacing member 16, while symmetrically spaced smaller slots 8, 9 accommodate wedges 10 which cause the case to be deformed to clamp the said pole-tips.
Patent GB-738407-A (GB)
Title: A process for the manufacture of permonosulphuric acid
Inventor: FELL ERIC TOM
IPC: C01B15/06
Filed: 1953-01-16
Abstract: Solutions containing permonosulphuric acid are manufactured by mixing regulated amounts of concentrated sulphuric acid and hydrogen peroxide under such conditions as to produce a mixture of permonosulphuric acid, sulphuric acid, water and hydrogen peroxide, cooling the mixture to inhibit further reaction, and substantially immediately diluting the mixture with water to produce an aqueous solution containing not more than 15 per cent permonosulphuric acid. The hydrogen peroxide is mixed with an equal or larger volume of sulphuric acid and the reaction may be effected continuously by running together streams of hydrogen peroxide and sulphuric acid at uniform velocity, preferably in the volume ratio 1 to 3 or 4.  To effect reaction to permonosulphuric acid, the reaction mixture should reach at least 50 DEG  C., by the exothermic effect of the dilution of the sulphuric acid, although with acid of less than 88 per cent concentration, e.g. between 76 and 88 per cent, external application of heat may be necessary.  This temperature rise may be obtained by provision of a reaction time of a few seconds before cooling, although with less than 50 per cent concentration hydrogen peroxide the reaction time is not necessary and the mixing may take place in the cooler.  The dilution may be effected by passing the cooled mixture into a tank of water containing ice, or by pumping water into the lower portion of the water-cooled cooler, or two coolers may be used with the second being used for dilution.  Dilution should be carried out with soft water.  The product consists of up to 15, preferably 2.8-15 per cent, permonosulphuric acid, up to 15, preferably 0.2-1.1 per cent hydrogen peroxide, up to 25, preferably 4.8-13 per cent sulphuric acid, balance, preferably 81-88 per cent water and may be used for bleaching.
Patent GB-991076-A (GB)
Title: Dc-motor with centrifugal switch
IPC: H02K11/23
Filed: 1964-01-13
Abstract: 991, 076. Automatic speed control. LOEWE OPTA A.G. Jan. 13, 1964 [Jan. 23,1963], No. 1383/64. Heading G3R. A D.C. motor 1 driving a tape recorder has its speed stabilised by centrifugal switch 10 on shaft 9, the motor operating at full voltage when the switch 10 is closed so that rotary transformer winding 12 is shunted by resistor 11 to damp oscillating circuit 14, 15. The centrifugal switch opens when the motor reaches a predetermined speed to render the oscillator effective, so that current is induced in winding 24 which is coupled with winding 14, these windings being stationary, and wound on transformer 13. Transistor 6 is then rendered non-conductive whereby resistor 31 reduces the motor current and the speed falls until the centrifugal switch re-closes. Resistor 30 forms a load resistance for the winding 24 and determines the rate at which the motor is brought up to speed. The oscillator circuit is associated with transistor 16 having an earthed base and emitter resistor 20 shunted by capacitor 21, which, together with capacitor 19, forms a potential divider.
Patent GB-1292583-A (GB)
Title: Package of composite film with peelable, heat sealable surfaces
IPC: B65D65/38
Filed: 1970-01-12
Abstract: 1292583 Multilayered films CROWN ZELLERBACH CORP 12 Jan 1970 [13 Jan 1969] 1389/70 Heading B5B [Also in Division B8] A composite thermoplastic film useful in packaging has at least two different thermoplastic layers, one of which is an outer layer of film having a tensile strength less than 703 kg./ cm.<SP>2</SP> (10,000 p.s.i.), a thickness less than 10À2 Á (0À4 mil.) and an interlaminar bond strength to the adjacent layer of less than 0À180 kg./cm. (1À0 lb./inch) width. The outer and adjacent layers of this composite film may be polyolefines of different molecular configuration, e.g. an outer layer of polyethylene and an adjacent layer of polypropylene or vice versa. Some polymer combinations which may have desirable characteristics from the point of view of packaging have interlaminar bond strengths greater than 0À180 kg./cm. width, in which case a third polymer layer is interposed to reduce the interlaminar bond strength between the outer and adjacent layers to less than 0À180 kg./cm. width. These composite films are produced by a process of co-extrusion. In Fig. 2 a seal 16 such as would be used in packaging, has been formed by fusion of the outer layers 12. Figs. 3 and 4 illustrate the principle whereby the package may be opened without the application of undue force. When the package is opened, a tear 17 forms in the thin outer layer and then delamination starts along the interface 14 between the inner and outer layers 11 and 12. In Fig. 4 the opening has been completed by a rupture of outer layer 12 at 18.
Patent GB-615714-A (GB)
Title: Improvements in or relating to metal contact rectifiers and photoelectric cells
IPC: H01L21/06
Filed: 1945-01-17
Abstract: 615,714. Asymmetrically-conducting resistances. STANDARD TELEPHONES & CABLES, Ltd., RICHARDS, E. A., and ELLISON, L. J. Jan. 17, 1945, No. 1411. Drawings to Specification. [Class 37] . A counter electrode is applied over a semiconductive surface, e.g. of selenium, and an adjacent insulating surface over whioh contact pressure is to be effected, the insulator being superposed on a portion of the semi-conductive surface or directly on the supporting base-plate. The boundary between the surfaces is of sinuous form to increase the length of that part of the counter-electrode layer extending thereover. Specifications 526,482, [Group XXXVI], and 603,575 are referred to.
Patent GB-1169232-A (GB)
Title: Means for Making Meteorological Observations
Inventor: DUBOIS ERNEST MARIE RENE
IPC: G01W1/08
Filed: 1967-01-11
Abstract: 1,169,232. Apparatus for making meterological measurements; rockets. BERTIN ET COMPAGNIE. 11 Jan., 1967 [14 Jan., 1966], No. 1444/67. Headings F3A and F3C. An apparatus for making meterological measurements comprises a propulsive device 1 which may be powder or hot-water operated rocket, a sonde 5 containing measuring and photographic instruments, a controlled-release parachute 11, 12 connected at least to the sonde 5 and a recovery cable 37 which unwinds during the climb of the apparatus and which is re-wound to return at best the sonde to its starting place. In the construction shown the recovery cable 37 is connected to the parachuted assembly by means of co-operating snap hooks 21, 22 of the assembly and rings 32, 33 of the cable. In the pre-firing state of the apparatus the propulsive device 1 is mounted for guidance on a launching pad 25, the snap hooks being disposed in diametrically disposed recesses 23, 24 in a fin unit 4 of the device 1 and the rings 32, 33 being supported in line with the hooks on a crown 29 of the pad 25. The cable 37 is threaded through coaxial guide loops 38. The system for paying out and rewinding the cable 37 comprises a driving motor, belt drives, a torque converter, a winder, a reel and a winch (Fig. 2, not shown). The system is also provided with a device for introducing and guiding the cable on to the reel (Figs. 2, 7, not shown). The propulsive device 1 is provided with a nozzle (Fig. 1, not shown) and a cruciform fin unit 4. A trail of smoke or opaque condensates can come from the propelling jet or a generator in the sonde.
Patent GB-1373180-A (GB)
Title: Assembly for and a method of the welding of nuclear fuel cans
IPC: B23K9/16
Filed: 1972-01-12
Abstract: 1373180 Welding by fusion BABCOCK & WILCOX CO 12 Jan 1972 [12 Jan 1971] 1549/72 Heading B3R In circumferential seal welding of an end cap 61 to an elongated nuclear fuel rod can 18, only the end of the can bearing the cap is extended into an evacuated and inert-gas-charged box 10 through a seal 16 and is stationarily located relatively to a rotary TIG welding head 27. The TIG head 27 is mounted on a support plate 25 which is fast on a hollow shaft 23 journalled in a housing 22 and rotatable from the box exterior through gears (32), 31. Current is conveyed to the TIG head via a stationary contact (31) engaging the support plate 25. The shaft 23 has a bore 24 which is coaxial with the seal 16, a further, opposite, seal 17 and a can clamp 51. The latter comprises two V-jaws (52), (53) actuated by an air cylinder (55). A can end stop arm 41 is movable into and out of its locating position by an electrically controlled air cylinder 44. To avoid damaging the electrode 28 of the head by the can, the head is movable out of its circular welding path by an electrically controlled air cylinder (39) mounted in the housing 22 and acting on the head through a cam (36) and an arm 37. The box is selectively evacuated and inert-gas-charged respectively by a pump 12 and a gas source 13, through a valve 73.  Operation.-Before the welding operation, the can, with one end closed, is passed, open end first, through the box 10 successively through the seals 16, 17, to a series of processing stations where it is loaded with radio-active fuel in an inert gas environment, and then fitted with the cap 61. During this operational stage, the box is evacuated and gas charged. The loaded can is then passed successively through the seals 17, 16 to where the stop arm 41 may be moved into a locating position behind the can, the latter is then leftwardly moved into the position shown to abut the stop arm whereupon the clamp 51 is actuated to grip the can, and the stop arm moved clear. The TIG head is then rotated to effect a continuous seal weld, following which the air cylinder (37) is actuated to move the head out of the welding path, the clamp 51 is released and the can withdrawn from the box 10 through the seal 16.
Patent GB-694769-A (GB)
Title: Device for controlling the operation of sewing machines
IPC: D05B69/22
Filed: 1952-01-22
Abstract: 694,769. Interrupters. SINGER MANUFACTURING CO. Jan. 22, 1952 (Aug. 20, 1951], No. 1745/52. Class 38 (v) [Also in Groups VII and XXIV] Adjustable spring- closed contacts 100, 101 for closing a circuit at particular positions of a shaft 97, which is formed with a flat 99 to allow movement of contact - controlling members 95, are mounted on a baseplate 88 which is supported on a flywheel 90 on the shaft by means of a ball-bearing having a flange on the plate 88 as its inner member. The plate 88 is held stationary, and may be adjusted about the axis of the shaft to vary the timing, by a link 131 having a slot engaged by a clamping screw 134 on a fixed member.
Patent GB-288389-A (GB)
Title: Improvements in and relating to telephone exchange components and their mounting
IPC: H04Q1/08
Filed: 1927-01-20
Abstract: 288,389. Sterling Telephone & Electric Co., Ltd., Blades, N., and Beard, J. R. Jan. 20, 1927. Manual exchange switchboards. - Switchboard components are mounted on a narrow mounting plate 1 by means of a single screw 4, the cover 2 of the component being formed with ribs 3 or shallow grooves which engage the mounting plate, and are arranged so that the component may be attached in either of two positions at right angles. The invention is described with reference to a retardation coil, in which the core laminations 7 are clamped between metal strips 8, 9 which are secured to the cover 2.
Patent GB-994717-A (GB)
Title: Improvements in or relating to the hardening of epoxy resins
IPC: C08L63/00
Filed: 1963-01-15
Abstract: A method of hardening an epoxy resin to produce an infusible, insoluble product comprises mixing the resin with a titanate of the formula Ti3{(OR)3N}4, where R is a divalent aliphatic, cycloaliphatic, aromatic or heterocyclic radical, and thereafter allowing the mixture to harden at room temperature or an elevated temperature, the titanate being prepared by reacting 3 mols. of a titanate of the formula Ti(OR1)4, where R1 is a monovalent aliphatic, cycloaliphatic, aromatic, or heterocyclic radical, with 4 mols. of a trihydroxy, tertiary amine of the formula N(ROH)3.  The amine titanate may be added to the epoxy resin alone or in solution in a liquid modifier for the resin, e.g. an alcohol; a mono-, di- or poly-ether containing hydroxyl groups; a glyceride oil; the addition product of a phenol and an unsaturated fatty acid, or a derivative thereof; a trialkyl or triaryl phosphite; mixtures of such compounds; in a plasticizer for the resin such as dibutyl phthalate or an inert diluent or a conventional hardener.  Optional additives are aminopolyamides, polyamines, dimethylformamide, furfuryl glycidyl ether, and fillers.  The resin-hardener mixtures may be used in the production of coatings, adhesives, laminates, castings and moulding and filling compounds.