baber/WOPTO huggingface dataset:
Patent GB-797486-A (GB)
Title: Utilisation of mixtures of organic and inorganic acids in the preparation of greases
Filed: 1956-11-19
Abstract: A grease comprises a major proportion of a lubricating oil, a minor proportion of a neutralized blend of a C1-C3 carboxylic acid and a mineral acid and a minor proportion of an aluminium soap.  The C1-C3 carboxylic acid may be formic, acetic, propionic, chloro-acetic, glycollic or thioglycollic acid or glycine, while the mineral acid may be phosphoric, nitric, sulphuric or hydrochloric acid or mixtures of these.  The blend of acids may be neutralized with a sodium, potassium, lithium, calcium, barium, magnesium or strontium base, for example the hydroxide or carbonate, or with a mixture of such bases. The aluminium soap may be a soap of stearic, palmitic, arachidic or behenic acid or other C16-C22 carboxylic acid.  The lubricating oil may be mineral or synthetic, and examples of synthetic oils are esters of mono- or di-carboxylic acids, complex esters, phosphate, sulphite or carbonate esters halocarbon oils, polysiloxanes, mercaptals, formals and polyglycols.  The grease may also contain oxidation inhibitors (e.g. phenyl alpha-naphthylamine), corrosion inhibitors (e.g. sorbitan mono-oleate), tackiness agents (e.g. polybutene or polymerized acrylic esters) and load-carrying compounds (e.g. sulphurized and/or phosphorus-and/or chlorine-containing compounds).  In examples, greases are prepared from acetic acid, phosphoric or nitric acid, hydrated lime, aluminium stearate, phenyl alpha-naphthylamine and mineral oil.
Patent GB-1365916-A (GB)
Title: Process for preparing catalyst for exhaust gas purification
IPC: B01D53/86
Filed: 1971-07-27
Abstract: 1365916 I.C. exhaust gas catalyst MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 27 July 1971 [30 July 1970 (7)] 35301/71 Heading B1E [Also in Division Fl]  A catalyst composition is formed by treating a fabric of glass fibres with an acid to increase the relative silica content of the fibres and then depositing a layer of catalyst for oxidation of carbon monoxide thereon. Specified catalyst components are platinum, cobalt oxide and copper oxide, optionally promoted with an oxide of nickel, chromium, manganese or aluminium. A layer of an organic chromium, cobalt or nickel compound may be deposited on the fabric surface before deposition of the catalyst itself. Specificatiion 1315850 is referred to. Reference has been directed by the comptroller to Specification 1315850.
Patent GB-301659-A (GB)
Title: Improvements in the construction of dowel pins or blocks for built-up beams
IPC: E04B1/48
Filed: 1927-12-30
Abstract: 301,659. Rezchniewski, S. Dec. 30, 1927. Dowels; dowelling.-Dowels for built up beams are constructed of plastic material, which subsequently hardens, associated with iron reinforcements, the pins being moulded in situ in recesses cut in the beam. The T-beam comprising flanges a<1>, a<2>, Fig. 1, and web a<3> is provided with recesses x into which the dowels are moulded. The reinforcements take the form of Z-shaped rods y, reinforcements take the form of Zshaped rods y, Alternative forms of reinforcement are iron tubes' with projecting flanges, expanded metal wound into cylindrical form and longitudinal rods associated with transverse nails. In another form, two spaced longitudinal beams a', a<2>, Fig. 4, are united by dowels x with serrated edges moulded in the spaces between the beams. A similar construction is applied to beams with a butt joint. A dowel jointed connection of tie rods and beam is described.
Patent GB-878904-A (GB)
Title: Production of alkali metal perchlorates
Inventor: DEXTER THEODORE HENRY
IPC: C01B11/18
Filed: 1956-11-19
Abstract: An alkali metal perchlorate is prepared by oxidising the corresponding alkali metal chlorate with lead dioxide, the aqueous reaction mixture containing sulphuric acid and at least a molar amount of perchloric acid per mol of alkali metal chlorate.  The perchloric acid reduces the viscosity of the reaction mixture and assists in separating the product.  Preferred amounts of reactants per mol of chlorate are 0.8-1.5 mols lead dioxide, 0.8-2 mols sulphuric acid, and 2-5 mols perchloric acid; the use of excess lead dioxide and sulphuric acid assists in the conversion to perchlorate. In examples describing the preparation of sodium perchlorate, reaction takes place at 98 DEG -100 DEG C. for about 1-2 hours; the product is filtered hot to remove lead sulphate, the filtrate being evaporated and cooled to precipitate sodium perchlorate.  In Example III the reaction mixture also contains sodium perchlorate and in Example IV liquor from the process is recycled.  The lead sulphate formed may be converted back to lead dioxide by the process of Specification 819,275.  The perchlorate crystals obtained are washed with a saturated aqueous perchlorate solution containing alkali metal hydroxide to neutralise adhering perchloric acid and then dried.  The Specification also describes a process in which perchloric acid entirely replaces sulphuric acid in the reaction mixture and sulphuric acid is added subsequently to precipitate lead sulphate; in this process, however, some chlorine dioxide is lost by side reactions.
Patent GB-802923-A (GB)
Title: Improvements in or relating to fuel supply systems for gas turbine engines
Inventor: GREENLAND LEONARD SIDNEY
IPC: F02C9/16
Filed: 1955-12-09
Abstract: 802,923. Gas turbine plant; speed governors. HOBSON, Ltd., H. M. Dec. 7, 1956 [Dec. 9, 1955], No. 35467/55. Addition to 712,646. Classes 57 and 110 (3). [Also in Group XXIX] The fuel supply apparatus for gas turbines described in the parent Specification is modified by arranging that the speed governor is adjustable to reduce the controlled speed to a value such that the governor is operative on the metering valve 26 to control the flow of fuel to the engine at a speed below the upper limit of the speed range in which the over-fuelling valve 22 is effective to restrict the fuel flow. To provide adequate pressure to operate the metering valve at the minimum controlled speed, the left-hand side of the servo-piston 27 instead of being connected to the downstream side of the over-fuelling valve 22 is connected by a duct 53 to the inlet side of orifice 23 and hence to the delivery of the engine-driven fuel pump supplying the over-fuelling valve. Adj ustment of the loading spring 19 of the servo-control valve 18 in this case is effected by a leveroperated eccentric 51 which acts through a follower 52 on a lever 20 constituting an abutment for the spring 19.
Patent GB-922079-A (GB)
Title: Improved method of extruding metal tubes
IPC: B21C23/32
Filed: 1960-10-17
Abstract: 922,079. Extruding. KRONPRINZ A.G. Oct. 17, 1960 [Oct. 17, 1959], No. 35472/60. Class 83 (4). A metal tube is extruded from a hollow billet 7 closed at one end by introducing a predetermined amount of lubricant into the billet, pressing a mandrel 3 through the billet to force the lubricant into the annular gap 9a, and extruding the billet between the mandrel and die 6. The lubricant may be a powder such as ground glass or including ground glass, or may be in paste or fluid form.
Patent GB-1240521-A (GB)
Title: Air conditioner
IPC: F24F1/01
Filed: 1968-07-25
Abstract: 1,240,521. Air heating or cooling units. LTG. LUFTTECHNISCHE G.m.b.H. 25 July, 1968 [24 Aug., 1967], No. 35488/68. Heading F4V. An induction ventilating and heating or cooling unit comprises a housing 10<SP>1</SP> containing cooling and heating heat exchangers 54, 55 respectively and two pivoted or sliding valves 52, 53 controlling the secondary air flow therethrough, wherein when one valve is in an open position, the other is held in a closed position. In another embodiment, the valve 52 is replaced by two or more pivoted flaps and the air inlets to the heat exchangers and to a by-pass are covered by filters. The valves 52, 53 are controlled hydraulically, by an electromotor or, as shown, by a pneumatic cylinder and piston device 66 in response to a room thermostat. The flap valves 52, 53 shown are rotated by arms 58, 59 which are connected respectively to the cylinder and piston of the device 66. In the position shown in Fig. 8, the weight of the cylinder holds the flap 52 closed, while the flap 53 is spring urged to an open position. As air is fed into the cylinder, the flap 53 closes and thereafter, the cylinder rises relative to the then static piston to open the flap 52. The flaps 52, 53 alternatively may be spring biased to a closed position. The device 66 is situated outside the casing 10<SP>1</SP>.
Patent GB-1500506-A (GB)
Title: Shock or impact absorber
IPC: F16F9/04
Filed: 1975-08-12
Abstract: 1500506 Shock absorbers RAPHAEL TOYS Ltd 12 Aug 1975 [13 Aug 1974 26 Sept 1974] 35555/74 and 41971/74 Heading F2S A shock absorber for use as a ships fender comprises a plurality of bodies 10, 11, 20 connected together by a flexible tie member 12, each body having a depression or a convex shape so as to fit the convex shape or depression of the next body, and some of the bodies being hollow deformable annuli. In Fig. 2, the balls 11 may be solid or hollow, and fit into the depressions afforded by hollow inflatable tori 10 made of PVC. In Fig. 3, inflatable bodies 20 are provided with both depressions and convex parts, so that intermediate members are not necessary.
Patent GB-1197573-A (GB)
Title: Esters of 3-Pyrrolidinemethanol, processes for preparing them, Intermediates therefor, and Therapeutic Compositions containing them
Inventor: LUNSFORD CARL DALTON
IPC: C07D207/08
Filed: 1967-08-02
Abstract: 1,197,573. 3-Pyrrolidinemethanol alkyl esters. A. H. ROBINS CO. Inc. 2 Aug., 1967 [8 Aug., 1966], No. 35567/67. Heading C2C. Novel esters of 3-pyrrolidinemethanol, of formula wherein R is hydrogen, lower alkyl, phenyl lower alkyl, substituted phenyl lower alkyl, cycloalkyl, phenoxy lower alkyl, phenyl-amino lower alkyl, phenyl, or substituted phenyl; R<SP>1</SP> is hydrogen, lower alkyl, phenyl, phenyl lower alkyl, cycloalkyl, or substituted phenyl; R<SP>2</SP> is phenyl or substituted phenyl; and R<SP>3</SP> is lower alkyl, "lower" meaning C 1 -C 8 , cycloalkyl having 3-9 carbons, and substituted phenyl having one to three alkyl, alkoxy, halo, trifluoromethyl, and/or dialkylamino substituents, are prepared by esterification of the corresponding 3-pyrrolidinemethanol with an aliphatic acid anhydride. The 3-pyrrolidinemethanols are prepared from the corresponding 3-benzoyl or substituted benzoyl pyrrolidine, either by a Grignard reaction with the appropriate magnesium halide, R<SP>1</SP>MgX, or by reduction, or else by reduction of the corresponding 2-oxo-3-pyrrolidine methanol. The 2-oxo-3-pyrrolidine methanols are prepared by condensing a 1-substituted-2-pyrrolidinone with a ketone, R<SP>1</SP>COR<SP>2</SP>, in liquid ammonia with an alkali metal condensing agent. The 3 - benzoyl - pyrrolidine starting materials are obtained from a Grignard reaction of a 3-cyanopyrrolidine with a phenyl magnesium halide, R<SP>2</SP>MgX. Pharmaceutical compositions having analgesic properties comprise the novel esters with an oral or parenteral pharmaceutical carrier.
Patent GB-1105630-A (GB)
Title: Combustion apparatus for gas turbine engines
Inventor: BARKER KEITH LAMBERT
IPC: F23R3/02
Filed: 1965-08-19
Abstract: 1,105,630. Gas turbine combustion chambers. JOSEPH LUCAS (INDUSTRIES) Ltd. Aug. 23, 1966 [Aug. 19, 1965], No.35578/65. Heading F1L. Combustion apparatus for a gas turbine engine comprises an annular flame tube divided by an annular wall 24 into a combustion zone 16 and an outer zone 17. Openings 18 leading to the combustion zone 16 alternate with openings 19 leading to the outer zone 17. Primary air, together with fuel supplied by burner nozzles 21, enters the combustion zone 16 through the openings 18. A deflector plate 25 causes the flow of combustion gases to tend to form two toroidal flow patterns. The combustion gases pass from the combustion zone 16 to the outer zone 17 through openings 23 aligned lengthwise of the flame tube with the openings 19. Dilution air enters the outer zone 17 through the openings 19, each of which is provided with a deflector plate 20.
Patent GB-1221442-A (GB)
Title: Improvements in or relating to display devices
Inventor: GROSSE MAURICE
IPC: G09F11/12
Filed: 1967-08-02
Abstract: 1,221,442. Panel-changer display device. M. GROSSE. 23 July, 1968 [2 Aug., 1967], No. 35588/67. Heading G5C. In the type of display device where the foremost of a stack of flexible display panels is exposed to view and then conveyed over a roller 8 to be placed, upside-down, at the back of the stack: each panel 3 has a suspension rod 4 at each end for engagement by conveying devices, e.g. chains 10 and catches 11; the upper rods 4 rest in a cradle 5 which is inclined to cause them to move forwardly; and an electrically operated delay mechanism governs the length of time for which the foremost panel is visible. In use, the upper rod 4 of the foremost panel 3 is engaged by the catches 11 and conveyed around roller 8, displacing a jockey roller 31; however, when the trailing rod 4 passes around roller 8 it is not being carried by catches 11, and so jockey roller 31 forces it forwardly to become the uppermost rod on cradle 5. Thus the panel now occupies the rearmost position in the stack. Delay mechanisms.-A multivibration timer unit (35, Fig. 2, not shown) produces pulses, each of which closes a relay and sets drive motor 26 running. A finger 12 on a catch 11 engages a microswitch 13, 14 to open the relay and stop motor 26 running (i.e. until the next pulse is received). The timer period may be controlled through a variable resistor. Alternatively, the timer may comprise a thermal delay circuit or a series of " blips " on a tape recording intended to provide aural accompaniment to the visual display. The microswitch may be replaced by a photo-electric cell device.
Patent GB-1212655-A (GB)
Title: Improvements in or relating to processes for the production of semikilled steel and an alloy adapted to the said process
Inventor: BOGDANDY LUDWIG VON
IPC: C22C28/00
Filed: 1969-07-15
Abstract: 1,212,655. Alloys for deoxidizing steel melts. HTTENWERK OBERHAUSEN A.G. July 15, 1969 [Aug.1, 1968], No.35604/69. Headings C7A and C7D. An alloy for deoxidizing a steel melt to provide a semi-skilled product comprises:- Mn 50-85% Si 2-15% Ti 0À02-0À5% and optionally Al 0À5-5% the balance, apart from impurities such as carbon, being Fe. The alloy is added to the melt prior to pouring to bring the Mn content thereof into the range 0À35-1À2%.
Patent GB-816966-A (GB)
Title: Curtain suspension devices
Inventor: JAMES JOHN MARTIN
IPC: A47H15/00
Filed: 1956-11-22
Abstract: 816,966. Curtain runners. HARRISON (BIRMINGHAM) Ltd. Oct. 9, 1957 [Nov. 22, 1956], No. 35719/56. Class 52(5) A curtain runner comprises a U-shape body a having inwardly directed parts b forming skids for traverse along flanges c of a curtain rail and a spring- loaded plunger e mounted on the body and urged to engage the undersurface of the rail to arrest the runner, release of the runner being effected by a drawcord attached to a loop f on the plunger. An integral, apertured tongue i, bent out from the body, is attached by a hook to the leading edge of a curtain, the other edge of which is secured to a fixed device and which is supported, intermediately, by the usual roller-bearing runners.
Patent GB-390781-A (GB)
Title: Improvements in and relating to bell gas holders
IPC: F17B1/013
Filed: 1932-12-17
Abstract: 390,781. Gas-holders. MASCHINENFABRIK AUGSBURG-NURNBERG AKT.- GES., Nuremberg, Germany. Dec. 17, 1932, No. 35874. Convention date, Dec. 17, 1931. [Class 54.] In a gas-holder of the type in which a bell c is movable relatively to a stationary bottom g fitted with a sealing device around its edge, a loading weight a is provided at the centre of the bell cover b, the bending moments set up in the cover structure being thereby reduced. The bottom is mounted on supports h spaced away from the edge and is provided on its upper surface with a ring e above the supports h and inner and outer rings d, f for supporting the cover when the bell is empty.
Patent GB-1501897-A (GB)
Title: Preparation of dicarboxylic acids
IPC: C07C51/31
Filed: 1975-09-01
Abstract: 1501897 Dicarboxylic acids IMPERIAL CHEMICAL INDUSTRIES Ltd 15 July 1976 [1 Sept 1975] 35946/75 Heading C2C Saturated aliphatic dicarboxylic acids are prepared by reacting a cycloalkyl hydroperoxide with nitrogen dioxide. The nitrogen dioxide may be added in the gaseous liquid phase to the cycloalkylhydroperoxide in the liquid phase for example in a hydrocarbon solvent, such as that from which the compound is derived. Examples describe the use of cyclohexylhydroperoxide derived from cyclohexane to obtain adipic, glutaric and succinic acids with hydroxycaproic acid.
Patent GB-383777-A (GB)
Title: Improvements relating to ovens
IPC: F24C15/32
Filed: 1931-12-30
Abstract: 383,777. Gas cooking-stoves. VULCAN STOVE CO., Ltd. and BARCLAY, H. W., Haven Road, St. Thomas, Exeter. Dec. 30, 1931, No. 35976. [Class 126.] The gases in a gas cooking-oven rise through openings d<1> in the crown plate to a space above it, and return thence to the oven by an opening d<2>, finally leaving by an outlet f. In the construction shown, baffles d<3>, d<4> form an extended path for the circulation of the gases in the space above the crown, the outlet is arranged at the bottom of the back of the oven, and the burners c extend along the sides beneath shields c<1> having a slot in the top extending above the jet orifices. The bottom c<2> extends between the shields c<1> and is removable.
Patent GB-369985-A (GB)
Title: Compositions adapted for use as emulsifying agents
Filed: 1930-11-29
Abstract: Tall oil derivatives, stated to be emulsifying agents are obtained by partially or completely esterifying tall oil or "liquid rosin" by heating it with a polyhydric alcohol, preferably in the presence of an esterification catalyst, e.g. calcium or magnesium glycerate and treating the resulting ester with a sulphonating agent at temperatures not substantially above 40 DEG  C., in order to form the sulphuric ester.  Organic solvents may be used, which may or may not take part in the reaction, and preferably not more than a quantity of sulphonating agent equal to that of the tall oil ester is used.  In examples: (1) tall oil is esterified by heating with glycerol in the presence of magnesium oxide and in an atmosphere of carbon dioxide, and treated with sulphuric monohydrate at 35 DEG  C.: (2) tall oil is partially esterified with glycerol and sulphonated with oleum in the presence of benzene, the temperature being below 20 DEG  C.  The products are particularly suitable for emulsifying tar and mineral oils, and may be used in the textile and leather industries.ALSO:Tall oil derivatives, stated to be emulsifying agents, are obtained by partially or completely esterifying tall oil or "liquid rosin" by heating it with a polyhydric alcohol, preferably in the presence of an esterification catalyst, e.g. calcium or magnesium glycerate and treating the resulting ester with a sul-, phonating agent at temperatures not substantially above 40 DEG  C., in order to form the sulphuric ester.  Organic solvents may be used, which may or may not take part in the reaction, and preferably not more than a quantity of sulphonating agent equal to that of the tall oil ester is used.  In examples: (1) tall oil is esterified by heating with glycerol in the presence of magnesium oxide and in an atmosphere of carbon dioxide, and treated with sulphuric monohydrate at 35 DEG  C.; (2) tall oil is partially esterified with glycerol and sulphonated with oleum in the presence of benzene, the temperature being kept below 20 DEG  C.  The products are particularly suitable for emulsifying tar and mineral oils, and may be used in the textile and leather industries.
Patent GB-959112-A (GB)
Title: Improved control device for power driven machines and implements
Inventor: TAYLOR FRANK WALTER
IPC: B62M25/00
Filed: 1961-10-07
Abstract: 959,112. Locking levers. H. C. WEBB & CO. Ltd. Oct. 4, 1962 [Oct. 7, 1961], No. 36129/61. Heading F2E. [Also in Division B7] A hand control device, comprising a lever 10 pivotally mounted between two spaced limbs 17 of a bracket 11 for securing the hand lever to a suitable handle part 20 of a power-driven machine or implement, is provided with a locking bolt 12 consisting of a stem 27 and a hook 28 passed through the two limbs of the bracket, the hook end, which is curved over through 180 degrees, being arranged to reenter, through a hole 29 in one bracket limb 17, the space between the limbs, with its end projecting into the path of the hand lever to retain the lever in an inoperative position, the hook end being withdrawable from the path of the lever, to release the lever from the inoperative position, by sliding movement of the locking bolt relative to the bracket. Fig. 2 shows a hand lever for controlling a clutch, held in the clutch-disengaged position by the end of the hook 28 projecting across an edge of a part 14 on the end of the lever, which is held back towards the handle part 20. For controlling an electric switch the inoperative position of the lever, i.e. the switch-open position, is as in Fig. 7, where the lever is held away from the handle part, and the end of the hook 28 here enters a recess 39 formed in the part 14 of the hand lever. The bolt is urged into its locking position by a spring 30, Fig. 5, and to release it a rubber end cap 36 is pressed, this cap enclosing a spring adjusting nut 35. On the outside of the bracket limb 17 a sector-shaped plate 31 is spot welded, Fig. 3, this plate having a hole 32 opposite the hole 29 and another hole 33, the end of which is blanked by the limb 17, forming a recess into which the end of the locking bolt enters when rotated to an unlocking position. The same purpose may be served by notches in the ends of the plate 31.
Patent GB-508508-A (GB)
Title: Improvements in or relating to continuous metal casting plants
IPC: B22D11/18
Filed: 1937-12-31
Abstract: 508,508. Discharging molten metal. JUNGHANS, S. Dec. 31, 1937, Nos. 36279 and 36280. Convention dates, Jan. 15, 1937, and April 19, 1937. [Class 51 (ii)] [Also in Groups XXII and XVIII] The Specification as open to inspection under Sect. 91 comprises the pouring of metal at a constant rate from a ladle 1, having an overflow opening 8 to avoid too great a head of metal, and also a valve 29, to regulate the flow of metal from a furnace 21, the valve being operated by a float 27 in the ladle. In a modification the furnace is pivoted and the float is connected thereto by a linkage such that it regulates the discharge by tilting the furnace to the required degree. This subject-matter does not appear in the Specification as accepted.
Patent GB-625455-A (GB)
Title: Improvements in or relating to roof constructions and heat-insulating slabs therefor
IPC: E04D7/00
Filed: 1946-12-09
Abstract: 625,455. Roofs, slabs. HUPKES, B. A., and RIJNLANDSCHE BETONBOUW MAATSCHAPPIJ N. V. Dec. 9, 1946, No. 36319. Convention date, Dec. 7, 1945. [Classes 20(iv) and 87(i)] A roof is built up of heat-insulating slabs 1 which are made of wood-concrete or cellular-concrete and are reinforced with rods 5 in the form of elongated hoops, a part of each rod extending externally of the slab and such parts being interconnected by transverse rods 7 to provide the reinforcement for a covering layer of concrete. The slabs may be tongued and grooved as shown and be rabbetted at their upper edges to accommodate connecting rods 9 and 13. In a modification the loops project beyond the ends of the slabs, the loops of adjoining slabs being staggered and the two series of slabs connected by a single rod passing through the loops. A coating 3 of mastic or other waterproofing material completes the construction. Specification 268,750, [Class 20(iv)], is referred to.