baber/WOPTO huggingface dataset:
Patent GB-1106236-A (GB)
Title: Process for preparing vinyl acetate
IPC: C07C69/15
Filed: 1965-06-08
Abstract: Vinyl acetate is prepared by reacting acetic acid with ethylene and molecular oxygen in the gaseous phase in the presence as a catalyst of elementary palladium, platinum, ruthenium, rhodium or iridium together with a manganese compound.  The catalyst is supported on a carrier which may be active carbon, pumice, silica gel or aluminium oxide and palladium is the preferred metal. Manganese acetate, sulphate or chloride may be used, for instance by impregnating the carrier with a 1-10% solution.ALSO:A catalyst for the preparation of vinyl acetate comprising elementary palladium, platinum, ruthenium, rhodium or iridium, and a manganese compound in a carrier is prepared in an example by impregnating granulated active carbon with palladium chloride in 50% hydrochloric acid, adding a mixture of hydrazine hydrate and sodium hydroxide washing and drying and finally impregnating with a 10% solution of manganese acetate and drying.
Patent GB-226626-A (GB)
Title: Improvements in and connected with magneto electric generators for signalling purposes
IPC: H02K7/18
Filed: 1923-09-29
Abstract: 226,626. Frost, S. G. Sept. 29, 1923. Morse and like code-signal transmitting - arranqements.-An electrical signalling unit of the type described in Specification 175,720 includes a generator provided with a plurality of current interrupting or modulating devices 4, 5. The devices are set into operation when the generator 1 is operated, and are adapted to cause the transmission of a plurality of signals, preferably by arranging the high speed code interrupter 5 to serve both to send a signal and to interrupt the continuous wave transmission controlled by the slow speed code interrupter 4. The generator may be driven by hand or by an air-screw. Fig. 4 shows one form of code interrupter comprising a rotatable drum 13 having flanges 14, 15 adapted to carry interchangeable signal-interrupting members 16. Or the interrupting device may be flat, and may act with a reciprocating brush. In a modification, Fig. 5, the signal may be arranged spirally on the drum, and the contact brush 18, after traversing any selected number of contacts, may be tripped and return to the starting or other selected point.
Patent GB-1411700-A (GB)
Title: Penicillins and production thereof
IPC: C07D499/62
Filed: 1973-05-22
Abstract: 1411700 Sulphobenzyl penicillins TAKEDA YAKUHIN KOGYO KK 22 May 1973 [22 May 1972] 24367/73 Heading C2C Novel sulphobenzylpenicillins having the Formula (I) and salts thereof, wherein R is a C 7  to C 22  straight-chain alkyl group, are prepared by reacting 6-aminopenicillanic acid or a salt or ester thereof, with an acid of Formula (II) wherein R is as above, or its salt or N-acylating derivative, and if necessary hydrolysing the resulting ester. Acids of Formula (II) above are prepared by reacting a metal salt of α-sulphophenylacetic acid with an alkyl halide. The acids, are converted to the acid halide by treatment with thionyl halide. Pharmaceutical compositions, suitable for oral or rectal administration, contain the above novel penicillins together with non-toxic pharmaceutically acceptable carrier or diluents.
Patent GB-1432838-A (GB)
Title: Manufacture of concrete products
IPC: B28B21/90
Filed: 1973-05-22
Abstract: 1432838 Lined concrete mould HUMES Ltd 22 May 1973 [25 May 1972] 24392/73 Heading B5A A reinforced concrete pipe 7 or other concrete article is formed in a hollow, rigid, outer mould member 1 that is open at opposite ends, and is lined by a flexible member 10 attached at one end to one end 12 of the mould member. The mould member 1 may be tapered, or define a bell end for moulding a pipe, and is in one piece or divided. In use, the lining 10 is inserted into the mould member 1 while inflated by pressurized air, and is attached at its one end by a clip 12. Pallets 4 and 6 close the mould member ends using clips 8 and 9. A concrete pipe is moulded centrifugally, with the mould, member axis horizontal or vertical, and the axis is then placed vertically for stripping. While the upper pallet 4 is held stationary, the mould member 1 is lifted to peel away the lining 10 from the green pipe, aided by lubrication between the lining and member 1.
Patent GB-856767-A (GB)
Title: Improvements relating to squirrel cage electric motors
Inventor: SUTTON WILLIAM VERDUN
IPC: H02K17/16
Filed: 1958-07-29
Abstract: 856,767. Souirrel-cage constructions. ELECTRIC CONSTRUCTION CO. Ltd. June 30, 1959 [July 29, 1958], No. 24421/58. Class 35. The rotor bars 1 (Fig. 1) of a squirrel-cage motor are split lengthwise along a plane 2 inclined to the axis of the bar so that the halves form opposed wedges. During assembly of the rotor a bar is inserted in a slot 9 and one of the halves is then shifted relative to the other so that there is an increase in the lateral dimensions of the bar, thus locking it against the top and bottom of the slot (Fig. 3). In Fig. 2 the bar is split along a plane inclined both to the axis and to the sides of the bar. This bar looks. against the sides of the slots as well as the top and bottom (Fig. 4).
Patent GB-261515-A (GB)
Title: Improvements relating to windshields for motor and like vehicles
IPC: B60J1/04
Filed: 1925-10-01
Abstract: 261,515. Fauser, G. Oct. 1, 1925. Bodies.-In. motor vehicles having verticallyadjustable windows or windscreens of the kind in which the upper edge is adapted to be received within a roof pocket or header formed by a front fixed board a, Fig. 1, and a removable rear board b, which carries operating mechanism for raising and lowering the screen, the removable board b is adapted to fit at its centre over a tongue 3 on the lower edge of a fixed part c of the rear header wall, and is secured in position by screws passing into tapped holes z, Fig. 2, in a corner bracket r which has flanges t, u, u<1> respectively engaging the roof side rail, the front header board a, and the windscreen pillar 19.
Patent GB-723889-A (GB)
Title: Improvements relating to thermal protective apparatus for belt conveyors
Inventor: RUSSELL DEREK BARRY
IPC: B65G43/04
Filed: 1951-10-19
Abstract: 723,889. Endless-belt conveyers. ENGLISH ELECTRIC CO., Ltd. Oct. 20, 1952 [Oct. 19, 1951], No. 24457/51. Class 78 (1). [Also in Group XIII] A rotating member of a conveyer, e.g. a driving or an idler roller, is protected from overheating owing to friction by a thermallyresponsive device fitted to the rotating member and including an operating member which moves at a predetermined temperature to engage means for stopping the movement causing the friction. As shown, a belt drum 10 is provided with a thermally responsive member 13 screwed flush into the drum. This comprises a plunger which is projected when the temperature of the drum exceeds 70‹ C. owing to slip of the belt 11 on it, so that a trip bar 14 carried between the runs of the belt is engaged by the plunger, the trip bar operating a cam 15 to cause closure of a switch 17 which stops the conveyer drive. The member 13 can also be fitted to an idler roller to respond to overheating due to foreign matter fouling the roller or its bearings, projection of its plunger then causing stopping of the roller by providing a fixed abutment to be engaged by the projected plunger. One form of device 13 may comprise a spring-loaded plunger held in retracted position by a plug of fusible alloy, e.g. " Cerrobend " (Registered Trade Mark) flush with the surface of the drum. In the form shown, Fig. 3, a spring-loaded plunger 31 is provided with a rack 36 engaging a pinion 34 on one end of a shaft 33 whose other end projects into a cavity 38 and has a toothed wheel 35 mounted on it. The cavity 38 is filled with a plug 39 of the fusible alloy so that wheel 35 is prevented from rotating until this plug melts at the desired temperature whereupon a spring 32 projects the plunger 31. A stop 44 limits outward move - ment of the plunger and a seal 41 is provided to keep out dust. To reset the plunger after the plug 39 has re-solidified a groove 37 is provided adjacent the rack 36 so that by inserting a key in aperture 43 the plunger can be turned to disengage the pinion, pushed back to retracted position and re-engaged with the pinion. As an alternative to the rack-and-pinion, a pawl on the plunger may engage a ratchet-wheel on the shaft 33, turning of the plunger to reset it not then being necessary.
Patent GB-218890-A (GB)
Title: A device for distributing liquid manure
IPC: A01C23/00
Filed: 1923-10-03
Abstract: 218,890. Vontobel, A. Oct. 3, 1923. Worm pumps; impellers in parallel.-Apparatus for distributing liquid manure comprises a cylindrical casing a having an inlet g at the centre and outlets i at the ends and enclosing two rotary worms e, f, or their equivalents, which force the liquid through the outlets to distributing members i carried by the outlet pipes k. The shaft of the worm is mounted in the screwed ends b of the cylinder and may be driven from the wheels of the machine, by a flexible shaft or toothed gearing. The distributors consist of dishes l having rims m which decrease in height from the inner sides of the dishes outwards. The liquid impinges against the inner side of the rim m, as shown in Fig. 3, and is forced outwards over the rim in a shower. To facilitate removal of obstructions the casing a mav be provided with apertures closed by covers. Vanes or propellers may be employed instead of the worms e, f.
Patent GB-904015-A (GB)
Title: Improvements in or relating to splicers
Inventor: MYERS MARK STANLEY
IPC: G03D15/04
Filed: 1960-07-14
Abstract: 904,015. Cutting devices. METRO-SOUND MANUFACTURING CO. Ltd. June 12, 1961 [July 14, 1960], No. 24553/60. Class 31 (1). A device for cutting lengths of photographic film or recording tape, preparatory to splicing thereof, comprises a base, a cutter arranged to coact with the base for cutting the film or tape, the blade of the cutter being angularly displaceable, interchangeable guide means on the base for retaining the film or tape against lateral displacement, and means for holding the film or tape against longitudinal movement. The device shown comprises a base 1 having a raised portion 2 on which is pivotally mounted a cutter holder 5 having in the lower surface thereof two substantially triangular holes 8, 9 which communicate with the bottom of a circular recess 6 in the upper surface of the holder. Mounted in the recess 6 is a transparent disc 11 having fixed to the lower surface thereof a blade 13 which passes through the holes 8, 9. The disc 11 is retained in the recess 6 by means of a cover-plate 12. By rotating the disc 11, the blade 13 can be positioned perpendicular to the film to be cut or at 45 degrees to the tape to be cut, the sides of the holes 8, 9 acting as stops. The base has a channel 3 in which replaceable guide means 14 are provided on each side of the cutter. The guide means take the form of a rectangular plate, the upper surface of which has nipples to engage in the usual perforations in the film or has side walls to hold the tape. In either case the lower surface of the plate has lugs to engage holes 15, 16 in the base of the channel. The guide means not in use is engaged with holes 19, 20. The film or tape is held against longitudinal movement by means of pivoted arms 24 each provided with a resilient stud for engaging the film or tape when the arms 24 are lowered. The arms 24 are held in their raised and lowered positions by means of a blade spring 27. The base is provided with scales 28, 29 for positioning the film or tape. The base, cutter holder, guide means and clamping arms may be moulded from a synthetic plastic, e.g. nylon.
Patent GB-172087-A (GB)
Title: Improvements in the extraction of alumina
IPC: C01F7/164
Filed: 1920-08-24
Abstract: Alkali metal compounds, obtaining from complex silicates Aluminium ores or aluminous material such as clay, slag or ashes are mixed with lime or equivalent calcium or magnesium compound in such quantity that there are at least 2 molecules of lime &c. for every molecule of silica and in addition, at least one molecule of lime &c. for every molecule of alumina.  Allowance is made for any base that may be present in the ore &c.  The materials are ground and calcined, a flux such as fluospar being added if desired. After cooling the product is treated with a solution of an alkali salt such as sodium carbonate to give alkali aluminate and an insoluble calcium or magnesium salt. The former is then treated for the production of alumina and alkali hydrate or carbonate by known processes.  e.g. by the Bayer process or by passing lime-kiln gases.  Any potash present in the raw material is rendered soluble and is recovered from the alkali left after precipitation of the alumina.  Specification 9662/15, [Class 1 (iii), Oxides &c., Metallic], is referred to.ALSO:Aluminium ores or aluminous materials such as clay, slags, or ashes are mixed with lime or equivalent calcium or magnesium compound in such quantity that there are at least two molecules of lime &c. for every molecule of silica, and in addition at least one molecule of lime &c. for every molecule of alumina.  Allowance is made for any base that may be present.  The materials are finely ground and then calcined, a flux such as fluorspar being added if desired.  After cooling and grinding, the product is treated with a solution of an alkali salt such as sodium carbonate in order to give alkali aluminate and an insoluble calcium or magnesium salt.  The former is then treated for the production of alumina by known processes, e.g. by the Bayer process or by passing lime-kiln gases.  The alkali-carbonate resulting from the latter method can be used for extracting further quantities of the calcined mass and the calcium silicate which is left after the extraction is particularly suitable in cement manufacture since it is free from insoluble alkali salts, no alkalis having been used in the calcination.  Any potash present in the raw material is rendered soluble and is recovered from the alkali left after the precipitation of the alumina.  In an example a blast-furnace slag containing principally alumina, silica and lime, but also magnesia, potash, and oxides of iron and manganese, is ground with limestone and 2 per cent of calcium fluoride added as a flux.  The mixture is calcined and the cooled product boiled with sodium carbonate.  The liquor is filtered and carbon dioxide passed into the hot filtrate to give alumina and sodium carbonate. Specification 9662/15 is referred to.
Patent GB-1062141-A (GB)
Title: Mercury vapor discharge lamp and pressure regulating means therefor
IPC: H01J61/72
Filed: 1965-06-10
Abstract: 1,062,141. Fluorescent discharge lamps. WESTINGHOUSE ELECTRIC CORPORATION. June 10, 1965. [July 9, 1964], No. 24680/65. Heading HID. In a low pressure mercury vapour lamp a mercury amalgam is anchored to a foraminous support structure formed of a material which is wetted by the amalgam, whereby the latter, when in the liquid state, is retained by the support structure by surface tension. In a lamp having an ultra-violet fluorescent coating 33 and a cathode 32 mounted between two shield plates (38, 38<SP>1</SP>, Fig. 2, not shown) a mercury/ indium amalgam assembly 40 is clamped around the glass stem 30 by a resilient wire 41. Assembly 40 is formed by pressing a layer of wire or glass cloth into each side of a layer of indium of smaller area, to leave a margin around the indium (Figs. 6 and 7, not shown), and is mounted around the glass stem 30 prior to the sealing of the latter to envelope 29, and the introduction into the envelope of mercury to form an amalgam having 80 to 95 atomic per cent of indium, and of argon or neon starting gas. The wire cloth may be of nickel, nickelplated iron, iron, aluminium, or titanium, and its ends may be cut at an angle to the stem axis (Fig. 8, not shown), to reduce the loss of amalgam dripping off these ends; alternatively, perforated metal sheet, rather than wire may be employed. Dimensions and mesh sizes of the cloth, and weight of indium and mercury, for various sizes of envelope are given. In alternative methods of mounting the assembly 40, it is secured around, but spaced from, the stem 30 by being brazed to a support wire which is either secured to one of the electrode leads 34 (Fig. 10, not shown), or anchored in the glass stem itself (Fig. 13, not shown); or by being clamped by a resilient wire ring (Fig. 15, not shown) having a pair of arms extending out through slots in the assembly. In a modification, a bimetal element may be included in the support structure, to compensate for ambient temperature changes either by varying the distance of the assembly from the electrode (Figs. 17 to 19, not shown), or by variably shielding it from the electrode by movement of a heat shield disposed therebetween (Fig. 20, not shown). Alternatively, the assembly may be held adjacent but spaced from the envelope by a spring clip held in compression by engagement with the envelope (Fig. 21, not shown), or may be secured directly to the envelope wall by a cemented tab. The use of thallium or tin as an alternative to indium is also referred to.
Patent GB-1277111-A (GB)
Title: Method and apparatus for processing a fluid compound
Inventor: LIEBERMAN ABRAHAM BUDDY
IPC: B01F13/00
Filed: 1969-05-14
Abstract: 1277111 Polymerisation apparatus; roller mixing GLOLOK CO Ltd 14 May 1969 24589/69 Headings B1C and B1X [Also in Division B5] Apparatus for the production of polyurethanes for the manufacture of cellular products comprises receptacles 37; 38 for the separate reactants, rolls 29, 30 rotatable to move their upper surfaces outwardly from one another, as indicated, and in constant longitudinal intimate contact with one another to prevent liquid entering between them, means for transferring the reactants from the receptacles on to the rolls as films, and comprising, for example, discharge openings from the receptacles shaped to follow the curvature of the rolls and terminating in doctor blade edges 43, means for rotating the rolls and a casting surface to receive, the reaction mixture formed at the line of contact of the rolls, the reaction mixture falling downwardly from the line of contact of the rolls on to the casting surface. Receptacles 37, 38 can be moved into contact with the rolls to stop the flow of reactant, and the rolls can then be cleaned with a spray of solvent from tubes 65. The discharge openings of the receptacles may be divided by series of transverse partitions 46 when the films of reactants form on the rolls as ribbons kept separate by air jets from nozzles 49. Means may be provided for separating the rolls from one another. In alternative embodiments, the films may form on the rolls as they dip into shallow pans of the reactants (Fig. 8 not shown); in apparatus similar to that shown two different reactants may be transferred to each roll and travel together to the line of contact of the rolls (Fig. 9 not shown).
Patent GB-1380844-A (GB)
Title: Phenylpyridazines and the preparation thereof
IPC: A01P13/00
Filed: 1973-05-23
Abstract: 1380844 3 - Phenyl - 4,6 - dichloro - pyridazinyl-(5) alkanoates CHEMIE LINZ AG 23 May 1973 [19 June 1972] 24687/73 Heading C2C 3 - Phenyl - 4,6 - dichloro - pyridazinyl - (5)- alkanoates of general formula wherein R is a C 1-20  straight or branched alkyl group optionally substituted by one or more Cl atoms, or a C 2-20  alkenyl group or a phenyl group, are prepared by reacting 3-phenyl-4,6- dichloro-5-hydroxypyridazine with a reactive derivative of an acid RCOOH, preferably the acid chloride or anhydride. Amongst the examples, the butanoate, n-ethyl-hexanoate, myristate and #-chloro-propionate are prepared. Herbicidal compositions comprise, as active ingredient, one or more of the compounds of the invention along or in admixture with one or more inert solid and/or liquid inert extenders or diluents and/or wetting agents and, optionally, insecticides, growth regulators and/or plant nutrients.
Patent GB-962902-A (GB)
Title: Improvements in spraying apparatus adapted to be carried upon the back of the operator
IPC: A01M7/00
Filed: 1963-06-21
Abstract: 962,902. Spraying apparatus. SOLO KLEINMOTOREN G.m.b.H. June 21, 1963 [June 26, 1962], No. 24692/63. Heading B2F. A motor driven distributer for powder or liquid pesticides adapted for carrying on the back comprises a pesticide container 1 and carrier frame 3 of supporting members 4 and back plate 5 constructed as a unit in one piece from a plastics material. Lugs 6 formed in the plate 5 support a motor compressor unit 13, 14 whilst plate apertures 7 are provided for carrier straps 8. A U-shaped tubular member 10 having arms 9 forms a stand for the distributer when not being carried and this member, the arms of which project into the lower ends of the members 4, is surrounded with plastics material in the production operation during which the container 1, members 4 and plate 5 are blow-moulded. In a further embodiment a petrol tank is incorporated in the carrier frame and container unit whilst in yet another construction the back plate is hollow forming part of the container.
Patent GB-642748-A (GB)
Title: Improvements in and relating to a filter for purifying a liquid or gaseous fluid
IPC: B01D29/05
Filed: 1947-09-09
Abstract: 642,748. Gas filters. DEPALLENS, J. Sept. 9, 1947, No. 24743. Convention date, June 14, 1946. [Class 8(ii)] [Also in Group I] A filter comprises a sheet of fabric 14, which may be impregnated with, e.g. sodium silicate, between two gauges 13, all tightly mounted between flanges 1, 6, the inlet flange 1 having an inlet pipe 2 and drain-pipe 4, and the outlet flange 6 having an outlet pipe 7 and a pipe 9 for admission of compressed air or pressure steam for backwashing. A spring 16 is interposed between the filtering member and the flange 6, and is vibrated by the backwashing fluid to improve the cleansing action.
Patent GB-1343242-A (GB)
Title: Preparation of antimony trialkoxides
IPC: C07F9/90
Filed: 1972-05-25
Abstract: 1343242 Preparation of antimony trialkoxides M & T CHEMICALS Inc 25 May 1972 [1 June 1971] 24749/72 Heading C2C An antimony trialkoxide, Sb(OR) 3 , where R is a C 1 -C 12  alkyl hydrocarbon radical, is prepared by adding a stoichiometric amount of anhydrous ammonia to an organic medium containing an antimony tricarboxylate, Sb(OOCR<SP>1</SP>) 3 , where R<SP>1</SP> is a C 1 -C 12  alkyl hydrocarbon radical, and a stoichiometric amount of a monohydric alcohol, ROH; maintaining a temperature of below 25 C. during NH 3  addition and thereafter at 20-30 C. until the reaction is complete, and then isolating the antimony trialkoxide. The antimony tricarboxylate may be prepared in situ by reacting antimony trioxide with the corresponding acid anhydride at 75-120 C. and then ROH and ammonia are added and the preparation continued as above. An example describes the preparation of antimony tributoxide.
Patent GB-152856-A (GB)
Title: Improvements in or relating to spikes or brobs applicable for use in connection withrail chairs, railway rails, and the like, and in the manufacture of such spikes or brobs
IPC: E01B9/06
Filed: 1919-10-10
Abstract: 152,856. Williams, W., and Ward, J. Oct. 10, 1919. Forging-dies. - In machines for forging railway and like spikes, the lower die 7 has a movable bottom 6 firmly held down by springs 9 until raised to eject the spike 10 by a rod 5 connected to the head 1 by bars 2, 4. The dies have projections 13 to form recesses in the spikes, and may form two spikes 10 point to point, Fig. 4.