baber/WOPTO huggingface dataset:
Patent GB-1123768-A (GB)
Title: New thebaine and oripavine derivatives and processes for preparing the same
Inventor: HILLS DEREK WILLIAM
IPC: C07D221/28
Filed: 1966-07-29
Abstract: Novel compounds of general Formula I <FORM:1123768/C2/1> wherein R1 is H, -CH2-C(R5)=C(R6) R7 wherein R5, R6 and R7 are each, hydrogen, methyl or halogen, a propargyl group, a phenethyl group or a cycloalkylmethyl group; R2 is H, C1- 4 alkyl, or acyl; R3 is H or acyl and R4 is hydrogen or C1- 4 alkyl and pharmaceutically acceptable acid addition salts thereof are prepared by (a) hydrogenation of the corresponding thebaine or oripavine of general formula <FORM:1123768/C2/2> such that only the heterocyclic ring oxygen atom is affected e.g. by metallic sodium in ammonia or (b) by N-substitution of a compound of general Formula I in which R1 is H with a reactant capable of introducing the desired R1 substituent, followed by acylation when necessary.  Intermediates isolated are N-cyclobutylcarbonyl-D 6 -dihydronorthebaine from N-cyclobutylcarbonyldihydronorcodeinone (prepared from dihydronorcodeinone and cyclobutyl - carbonyl chloride) and dimethyl sulphate; N-cyclobutylmethyl - D 6 - dihydronorthebaine by reduction of the first-named intermediate; N-3,3-dimethylallyl - dihydronorcodeinone from 1 - bromo - 3 -methyl-2-butene and dihydronorcodeinone; and N - 3,3 - dimethylallyl - D 6 - dihydronorthebaine by methylation of the former named intermediate. Pharmaceutical compositions comprise the compounds I or their acceptable acid addition salts, for example the salicylate salts, mixed with carriers and/or diluents, and may be administered orally or parenterally.  They possess analgesic activity and analgesic-antagonistic effects against morphine.
Patent GB-959839-A (GB)
Title: Improvements in or relating to gas turbine power plants which generate electrical power and supply heat to external users
IPC: F02C1/10
Filed: 1960-10-06
Abstract: 959,839. Gas turbine plant. ESCHER WYSS A.G. Oct. 6, 1960 [Oct. 9, 1959], No. 34336/60. Heading F1G. A closed circuit gas turbine power plant which generates electrical power and supplies heat to one or more external users wherein the expanded gas leaving the turbine first gives up heat in a heat exchanger to the compressed working medium before the latter is heated in a heater to the inlet temperature of the turbine and then supplies heat to the external users before being re-compressed has means for reducing the heat transfer in the heat exchanger during the heat consumption peak so that the expanded working medium has an increased temperature at the commencement of the supply of heat to the external users, the correspondingly higher-heat requirement being covered' by increasing the heat supply in the heater. Air compressed in a compressor 1 passes by way of a heat exchanger 3 to the working medium heater 5. The heated air is fed to a turbine 7 which drives the compressor 1 and generator 8 and exhausts through the heat exchanger 3 and cooler 11 to the inlet of the compressor 1. In the cooler 11 the expanded working air gives up heat to a heating medium in a flow path 13 which is employed in an external user and to cooling water in a flow path 14. An intermediate cooler 15, in which the air gives up heat to the external user in a coil 17 and to cooling-water in a coil 18, is also provided. To increase the supply of heat to the external user, a by-pass pipeline 21 with a shut-off valve 20 is provided. When the valve 20 is opened the gases passing through the path 311 are cooled to a lesser extent. A by-pass 24 with control valve 25 may be provided, if desired. The opening of the valves 20, 25 may be accompanied by a reduction in flow of cooling water through the coils 14, 18. Instead of by-passing the entire flow path 31, 311 of the heat exchanger 3, only part of these paths may by by-passed. When only part of the heat required by the external user is to be supplied at a higher temperature, a special heat exchanger 28 is connected in parallel with the cooler 11 to which heating medium is supplied through conduits 30, 33 controlled by valves 29, 32. The coil 34 provides the heat for the external user and the coil 35 is used by the cooling water. The conduit 33 may be arranged to by-pass only part of the flow path 311 of the heat exchanger 3.
Patent GB-1400952-A (GB)
Title: Apparatus for automatically duplicating flat keys
IPC: B23Q3/06
Filed: 1973-07-19
Abstract: 1400952 Milling keys; abrading; machine tool details CRASNIANSKI FRANCE SA 19 July 1973 [13 Sept 1972] 34340/73 Headings B3K B3B and B3D Apparatus for duplicating flat keys comprises a movable support 15 which carries two sets of jaws in which a key blank and a model key are clamped parallel to each other to be presented simultaneously to a rotary milling cutter 3 and a feeler respectively, the movable support 15 being mounted in a frame 1 to perform two co-ordinated reciprocating movements under the control of two control cams 25, 26, one movement being a lateral pivoting movement about a shaft 33 so that the keys move in a direction substantially parallel to the axis of rotation of the cutter 3, and the other movement being a movement along the length of the movable support in a direction perpendicular to the said axis of rotation, the first movement being actuated by the cam 25 and connecting rod 27 at a feed speed as the cutter 3 engages the key blank and being returned rapidly to a start position by a spring 30, and the said other movement being actuated by a crank 37, push rod 38 and lever 36 mechanism to raise and lower the key relative to the cutter 3 and feeler, the spring 30 being angled obliquely to the movable support 15 so that it also biases the support 15 in this said other movement towards the said start position. The machine tool includes an electric motor which drives through a belt 6 a shaft which carries the cutter 3. The feeler (8) (Fig. 7, not shown), is mounted parallel to the cutter axis and includes two slots mutually perpendicular to enable co-ordinate adjustment of the feeler. This is done by two adjustment members (11) having eccentric rods that engage in the said slots. Machine tool details.-The keys are clamped by two pairs of jaws (13) (14) (Fig. 4, not shown) positioned symmetrically one pair on each side of the support 15, and each comprising a fixed jaw portion (13) and a movable jaw portion (14) spring biased (16) away from each other and being pivotable through 180 degrees to present alternative groove gripping jaws. A central screw thread rod 17 has locking handles at each end. The clamping arrangement also includes a key setting device in the form of a lever 18 spring biased to a central position but deflectable to present a wing portion 20 adjacent the clamping jaws against which a key blank or model key is abutted. The frame 1 is supported in the lower half 47 of a spherical housing, the top half 48 of which is removable by releasing a clamping belt 50. The machine tool includes a rotary wire brush for de-burring a milled key.
Patent GB-1353983-A (GB)
Title: Basic dyes
IPC: C09B57/06
Filed: 1971-07-22
Abstract: 1353983 N-#-carbomethoxyethylnaphtholactam BADISCHE ANILIN- & SODA-FABRIK AG 22 July 1971 [23 July 1970] 34353/71 Heading C2C [Also in Division C4] In Example 1 N-#-carbomethoxyethylnaphtholactam is prepared by reacting naphtholactam with methyl acrylate in dimethylformamide in presence of potassium acetate, m.p. 108-109 C.
Patent GB-325580-A (GB)
Title: Improvements in telemeters
Filed: 1928-11-22
Abstract: 325,580. Rollo, M. R. Nov. 22, 1928. Telemeters. - Apparatus for measuring distances and adapted to be used in conjunction with a distant target of known dimensions comprises an eyepiece 3 with a peep hole 4, a diaphragm 6 adapted to be moved towards or away from the eyepiece 3 and a scale for indicating the extent of the displacement of the apertured diaphragm. The diaphragm is moved until it subtends the distant target and the distance of the target is then read off from the scale. A right angled prism or optical square 8 may be fitted to the apparatus opposite the peep hole 9 for offsetting purposes.
Patent GB-851954-A (GB)
Title: Improvements in band clamps
IPC: F16L33/04
Filed: 1958-10-27
Abstract: 851,954. Band clips. AEROQUIP CORPORATION. Oct. 27, 1958 [Nov. 25, 1957], No. 34374/58. Class 44. A clamp comprises a band 15 with one or a pair of slots 57 adjacent one end and integral hooks 43 at the other to engage the slots. The band 15, which may have jaw segments 13 welded to its interior surface, is clamped to, for example, the end flanges of two aligned pipes 11 by a nut 26 on a T-bolt 20 the head 21 of which engages a birfurcated strap 29 attached to the band adjacent the hooks 43 and the shank 22 thereof passing through a hole 27 of a T-sleeve 23 which has two trunnions 24 engaged by a strap 28 attached to the band adjacent the slots 57. The shank 22 also passes through a slot 54 of a keeper 52 formed integrally at the end of the band adjacent the slots 57, the slot 54 allowing the keeper to be raised clear of the bolt. The keeper 52 retains the hooks 43 in the slots 57 and has a portion 53 engageable by a tool to effect release of the clamp. On tightening the nut 26 the straps 28, 29 are drawn towards each other, and the hooks 43, being arcuately-shaped at 46, raise the keeper so that they can enter the slots 57. The faces 45 of the hooks are slightly inclined, and a collar 25 is interposed between the T-sleeve and the nut 26.
Patent GB-290996-A (GB)
Title: Processes for cracking hydrocarbons
Filed: 1927-12-20
Abstract: 290,996. Gasoline Products Co., Inc., (Assignees of Hargrove, G. C.). May 23, 1927, [Convention date]. Grant of Patent opposed. Hydrocarbons, cracking.-In cracking processes in which the conditions of temperature, pressure and time in the cracking operation are controlled so that not more than 25 per cent of the crude oil is converted into gasoline in a single passage through the apparatus, the crude stock is preheated in one or more of the fractionating stages of the process. The process is preferably continuous, the fresh feed of crude oil being diluted with preferably twice it volume of the clean overhead distillates produced. Any gasoline contained in the crude oil is preferably removed by " stripping " before the operation commences. The plant comprises the usual preheating coils 11 in a furnace 10, a reaction chamber 14, an evaporator 18 and a dephlegmator 20. The residues in the evaporator 18 are removed through a pipe 21 controlled by a valve 22 operated by a liquid level regulator 25 and pass through a cooler 23 to storage. The level of the condensate in the dephlegmator is similarly controlled' by a regulator 33 and valve 31, the condensate passing to a tank 32 where it is mixed with the crude oil pumped from a storage tank 38 and preheated by passage through coils 41, 42 provided with valved bye-passes 43, 44, the mixture being pumped to the coils 11 by pumps 54, 55. The oil level in the tank 32 is controlled by another regulator 47 governing, valves 46, 49 so that part of the oil may be bye-passed to a storage tank 50. An annular pan 52 collects the condensate formed by the coil 42 which is transferred to the dephlegmator through a pipe 52'.
Patent GB-409065-A (GB)
Title: Improvements in or relating to a process and apparatus for the production of wire glass
IPC: C03B13/12
Filed: 1932-12-07
Abstract: 409,065. Glass manufacture. STEVENS, A. H., 5, Quality Court, Chancery Lane, London.-(Mississippi Glass Co. ; 220, 5th Avenue, New York, U.S.A.) Dec. 7, 1932, No. 34668. [Class 56.] Wire-glass is made by flowing molten glass directly into a pass between a pair of forming rolls through a main passage adjacent the pass formed by the surface of one of the rolls and the directly opposed surface of a stationary flow-lip, and continuously introducing wire netting into the flow through an auxiliary passage formed by said flow-lip and the other roll. Glass flows from a furnace 10 over a lip 13, between adjustable guides 14, to forming rolls 15, 16, suitably 1 foot in diameter, the axis of the former being below the extremity of the lip, while a plane through the two axes is at about 30‹ to the vertical. The extension 17 of the lip extends as nearly as possible to the centre of this plane, the distance being made adjustable by mounting each roll on a pair of arms 20, Fig. 4, secured to shafts 21. The arms are rocked by adjustment of screws 22 engaging extensions 200. The rolls are also adjustable in slots 24 in the arms by means of screws 25. The netting is fed by means of a spiked tensioning drum 31 driven from a motor 32 with the interposition of a variablespeed device. An adjustable friction brake 36 may also be used. The wire passes over an adjustable guide 27 through which a heating fluid may pass, or a current may be passed across the netting. It enters the mass of glass which accumulates under the lip, passes through the rolls, which may be internally or externally cooled and are driven by a motor 39 through gears 46, the finished sheet of wire-glass being removed by a dead plate 47.
Patent GB-413950-A (GB)
Title: Improvements in or relating to oxide-coated cathodes for electron discharge tubes
IPC: H01J1/14
Filed: 1933-12-09
Abstract: 413,950. Thermionic cathodes. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. Dec. 9, 1933, No. 34722. Convention date, Dec. 10, 1932. [Class 39 (i).] In oxide-coated cathodes, the coating, which is less than 0.1 mm, is applied to a metal or metal alloy having a thermal emissivity less than nickel. Copper, gold, silver or alloy of copper and gold may be used with a coating of barium oxide. Uneven temperature distribution in indirectly heated cathodes is prevented by greater heating at those parts which are more likely to cool ; the pitch of a helical heating wire may be decreased or where a cylindrical cathode is used the ends may be coned to bring them nearer the heating wire. In one construction a small rod of magnesium oxide is formed with two bores close to one another to receive a tungsten heating wire of hairpin shape. A thin copper sheath is placed on the rod, the sheath being applied either as a cylinder or by spraying the metal. The coating of barium oxide having a thickness of 0.02 m.m. is then made, and a leading-in wire is welded to the copper sheath which with the oxide forms the cathode.
Patent GB-778939-A (GB)
Title: Improvements in cooking appliances
IPC: A47J37/06
Filed: 1955-12-05
Abstract: 778,939. Grilling and toasting apparatus. GENERAL ELECTRIC CO. Dec. 5 1955 [Dec. 9, 1954], No. 34788/55. Class 28(1) [Also in Group XI] A cooking device comprises toasting and oven chambers 12, 14, located one above the other, between which is located a single heater 42 having a pivoted reflector plate 48, with lower and upper reflecting surfaces, extending longitudinally on either side of it so that the reflecting plates reflect the thermal energy from he heater up or down according to their positions. Oven chamber 14 contains a drawer 24. The toasting portion 12 has sides 28, 30 formed by extensions of the oven top walls 18 and contains reflectors 50 and U-shaped wire food guard 64 beneath which is a baffl wire food guard 64 beneath which is a baffle 60. A food rack 66 is,movable vertically, e.g. manually, within guard 64. Reflectors 48 are hinged to reflectors 50 and are connected by links 84 to cams 90,mounted on a rod 92. Thus by turning a knob 98 on the end of the rod 92 the reflectors may be moved, simultaneously.
Patent GB-877622-A (GB)
Title: Isopropanol purification process
Inventor: JONES ERIC LLOYD
IPC: C07C29/74
Filed: 1957-11-08
Abstract: Aqueous isopropanol is recovered by a distillation process (see Group III) from crude aqueous isopropanol, such as is obtained by the sulphuric acid hydration of propylene, and is then dehydrated, at least in part, by contact with a suitable inorganic salt or an aqueous solution thereof.  Specified salts are potassium carbonate, ammonium carbonate and ammonium nitrate, but the second Provisional Specification refers also to potassium fluoride.  A 50% aqueous potassium carbonate solution is used in the example.ALSO:In recovering isopropanol from crude aqueous isopropanol, such as is obtained by the sulphuric acid hydration of propylene, the crude isopropanol is first distilled in the presence of water under such conditions that the concentration of isopropanol in the liquid at the base of the distillation column is not more than 3 moles per 100 moles of water.  The crude isopropanol is preferably fed to an intermediate point in the distillation column and the water is preferably introduced at a higher point, preferably at a temperature of at least 90 DEG C.  The column is preferably operated without external reflux.  The dilute aqueous isopropanol from the base of the column is then distilled in a rectification column from which purified aqueous isopropanol, which may be of approximately azeotropic concentration, is withdrawn as an overhead product.  This latter column is preferably operated with external reflux, a small amount of which may be removed to prevent the accumulation of volatile impurities in the column.  A bleed of a fraction having a boiling point between that of the distillate and that of the liquid in the bottom of the column may also be withdrawn from an intermediate point on the column to remove impurities.  The product from the top of the second column is then freed from water, at least in part, by contact with a suitable inorganic salt, or its aqueous solution, and this treatment may be followed by distillation to provide substantially dry isopropanol.  Specified salts are potassium carbonate, ammonium carbonate and ammonium nitrate, but the second Provisional Specification refers also to potassium fluoride.  In the example, the purified aqueous isopropanol from the top of the second column is treated in counterflow with a 50% aqueous potassium carbonate solution, and the partly dehydrated isopropanol is passed to a distillation column, from the base of which isopropanol containing only about 0.3% of water is withdrawn.
Patent GB-925348-A (GB)
Title: Improvements in or relating to sheet delivery arrangements
Inventor: BAGLOW DENNIS VAUGHAN
IPC: G03B27/30
Filed: 1958-06-16
Abstract: 925,348. Delivering sheets. BLOCK & ANDERSON Ltd. June 12, 1959 [June 16 1958], No. 34924/61. Divided out of 925,347. Class 100 (1). In a sheet-delivery arrangement for a copying machine, particularly a photographic contact printer of the type described in Specification 925,347, each copy sheet, after being processed within the machine, is fed upwards at an angle inclined to the vertical from between a pair of co-operating driven rollers 84, 85 and over a third roller 86 which is displaceable in an upward direction at an instant subsequent to the emergence of the trailing edge of the sheet from between the rollers 84, 85 whereby the trailing edge is raised into contact with a roller 88, the latter roller being rotated so as to convey the sheet along a path overlying the pair of rollers, the original trailing edge now being the leading edge. In the copying machine a copy sheet is superimposed upon a master sheet carried by a transparent cylinder 14, being held in engagement therewith by endless belts 15 passing round rollers 16, 17, 18, 20, 21. The roller 17 is driven and the frictional engagement of the belts 15 with the cylinder 14 causes the latter to rotate, the copy sheet and master then being exposed to the light of a mercury vapour discharge lamp 33. After exposure the copy sheet is stripped off the drum by a stripper 37 and is directed by a guide 70, including rollers 72, 73, round the roller 17 and on to the top of the upper run of the belts 15 with which it is held in contact by rollers 74. Near the roller 21 the sheet is deflected upwards by an inclined plate 75 until the leading edge is gripped between rollers 76, 77 which apply a liquid developer to the sheet from troughs 81, 83 and feed it into the nip of the rollers 84, 85. The rollers 84, 85 have a squeegee action and feed the sheet over the roller 86, which is carried on pivoted arms 87, on to a grid-like wire support 95 in a transfer tray 94. Heating means may be arranged in or near the tray 94 to help dry the sheet. The roller 86 is not driven so that the sheet comes to rest on the support 95 with the trailing end resting upon the roller 86. The roller 86 is then raised into engagement with the roller 88 which is driven in the direction indicated so as to deliver the sheet at a high speed between guides 92, 93 and into a receiving tray 67. The raising and lowering of the roller 86 is effected by a cam (not shown) carried by the cylinder 14 which oscillates a pivoted lever 105, 107 connected to the arms 87 by a rod 108. The trays 67, 94 are detachable from the casing 10 of the machine and serve as top and end covers respectively therefor.
Patent GB-938001-A (GB)
Title: Salt gathering machine
IPC: E21C47/00
Filed: 1959-10-16
Abstract: 938,001. Earth-excavating machines. M. CARELLO. June 1, 1961 [Oct. 25, 1958], No. 19833/61. Class 68 (1). [Also in Group XXX] Salt is gathered from salt marshes by means of a machine 100 which reciprocates along tubes 13 which form the lower part of framework 11. The machine advances along the tubes 13 rightwards in one run to gather a slice of salt; then its frame 21A which carries two alternative saltgathering devices 101 is oscillated about 22; then the whole apparatus and framework is moved sideways by rotatably driving the said tubes 13; after which the machine 100 progresses leftwards along tubes 13 on its return run to gather another slice of salt. The machine thus has a separate salt-gathering device (positioned at the respective ends of frame 21A) for each direction, the collected salt being fed upwards by endless belt 27 to discharge on to the respective conveyer 30 which conveys the salt to common discharge belt 12. Salt-gathering device 101 (Fig. 6).-As the machine advances, the salt is cut by saw 25, scraped by scraper 48, and gathered by bucket wheel 24 which delivers the salt on to endless belt 27. The saw 25, scraper 48, and wheel 24, are carried by frame 21A which pivots at 22 and carries at its other end likewise a saw, scraper and wheel. Additionally, belt 27 is carried by a frame 28 pivoted at 29 so as to serve either gathering device. Framework sideways moving device (Fig. 4).- The framework and salt gathering device rolls sideways on tubes 13 after each cut of the salt, the rollers being driven from a motor via gear 18 which is rigid with a tube 13.