baber/WOPTO huggingface dataset:
Patent GB-1123087-A (GB)
Title: Process for the manufacture of alkyl esters
IPC: C07C69/22
Filed: 1966-11-02
Abstract: Alkyl esters of aliphatic carboxylic acids are prepared by absorbing an olefine in concentrated sulphuric acid under elevated pressure, reacting with mono-chloroacetic acid, separating the alkyl monochloroacetate by distillation, reacting the separated product with an aliphatic carboxylic acid (other than monochloroacetic acid) in the presence of concentrated sulphuric acid, and separating the resultant alkyl ester of the aliphatic carboxylic acid by distillation.  The sulphuric acid from the first distillation stage may be recycled, and the excess carboxylic acid recovered in the final separation may also be recycled.  Straight or branched chain olefines, e.g. ethylene, propylene and butene-1, may be used.  An example describes the preparation of ethyl acetate from ethylene and acetic acid and detailed apparatus is also described.
Patent GB-1519386-A (GB)
Title: Ramp release and reset circuit for a three phase voltage regulator
IPC: H02M1/084
Filed: 1976-11-25
Abstract: 1519386 Automatic voltage control INTERNATIONAL BUSINESS MACHINES CORP 25 Nov 1976 [22 Dec 1975] 49292/76 Heading G3R [Also in Division H2]  A ramp release and reset logic circuit is provided for a three phase voltage regulator, in which regulation is achieved by variation of the firing angle of SCRs dependent on an error voltage corresponding to a variation in the regulated voltage, the firing angle being increased for increasing error voltage and being decreased for decreasing error voltage and the firing of the SCRs being initiated at the intersection of the ramp with the error voltage, the circuit causing the ramp to be released and reset by output pulses produced by the circuit from predetermined combinations of timing pulses which coincide with the intersection of the phase voltage waveforms with the error voltage thus avoiding the effect of waveform distortion on the timing of the ramp release and reset. From the three phase voltage waveforms AB, BC, CA, timing pulses AB, BA, BC, CB for control of a phase are formed from the intersection of the phase voltage waveforms with the error voltage (V offset) and from combination of these by the ramp release and reset logic function BA À CB + AB À BC is derived, Fig. 5 (not shown), to provide a train of output pulses which are fed to control a ramp generator, Fig. 7 (not shown), to release and reset the ramp. Two other similar trains of ramp release and ramp reset pulses are derived to control the other two phases. The output from the ramp generator feeds an error voltage comparator which also receives the error voltage, and when the ramp intersects the error voltage, a signal is fed to the SCR firing circuit to initiate firing of the SCRs.
Patent GB-1534329-A (GB)
Title: Installation for the manufacture of sticks from dough material
IPC: B29C48/06
Filed: 1976-11-26
Abstract: 1534329 Extrusion and cutting devices W H WILLEMSEN 26 Nov 1976 [2 Feb 1976] 49460/76 Heading B5A Potato sticks are made by extruding a potato flour based mixture through a die plate 1, attached to the lower end of a tank 9, by a piston 10. The extruded material is cut to length by a cutting means 11 moving across the lower face of the die plate. The die plate comprises a series of elongated apertures 6 defined by separating ribs 7 having recesses 8 which form ridges upon the extruded material. The ridges help prevent the sticks from sticking together during subsequent frying. The ribs taper from their undersurface to their uppersurface and it is preferred for the recesses to extend only over part of the thickness of the ribs. In order not to unduly weaken the ribs the recesses on one side of each rib are longitudinally offset from the recesses on the other side.
Patent GB-1113250-A (GB)
Title: Electric storage batteries
Inventor: REASBECK PHILIP
IPC: H01M50/172
Filed: 1963-12-16
Abstract: 1,113,250. Accumulator connections. JOSEPH LUCAS (INDUSTRIES) Ltd. 18 Feb., 1965 [16 Dec., 1963], No. 49523/63. Heading H1B. The terminal connection of a storage battery has a non-circular portion 7 and a flange 8 at its lowest point. When inserted in the cell, the flange forms the bottom of a space into which sealing material is poured. The slotted portion 5 receives and is welded to, the lugs of the battery plates.
Patent GB-1196387-A (GB)
Title: Improvements in or relating to Shelf Units
IPC: A47B47/03
Filed: 1968-10-18
Abstract: 1,196,387. Shelving. H. SCHAFER and T. SCHAFER [trading as FRITZ SCHAFER K.G.]. 18 Oct., 1968 [19 Oct., 1967], No. 49604/68. Heading A4B. A dismountable shelf unit comprises a rectangular top frame 3, a base 1, posts 5, 23 welded to the corners of the top 3 and base 1, and corner uprights 2 into the ends of which the posts 5, 23 are fitted, each upright comprising a C-section outer element 12 which is cut away at its ends to leave two walls 14, 15 to overlie the corner edges of the top 3 and base 1 and a U-section inner element 13 which is secured to and within the outer element 12 and is provided with spaced lugs 17 to support shelves 4a, 4b, 4c. Lugs 20 on the inner element 13 engage the inside of the outer element to define a space which receives side walls of the posts 5, 23. Ribs 24 on the top of the top frame 3 facilitate stacking of similar units.
Patent GB-1453445-A (GB)
Title: Carpet-faced board
IPC: E04B2/74
Filed: 1973-10-24
Abstract: 1453445 Carpet-board laminates ARMSTRONG CORK CO 24 Oct 1973 [10 Nov 1972] 49615/73 Heading B5N A structure suitable for use as an acoustical wallboard comprises a base board 4, e.g. a mineral wool or wood fibreboard or plywood, having on one surface 10 thereof a plurality of perforations 8 forming a sound absorbing surface, an adhesive coating 12 applied to the surface of the board in such manner as not to close any of the perforations in the board, and a carpet material 6 adhered to the surface of the board, the carpet material having a discontinuous coating of a latex adhesive 14 applied to the back surface thereof, the arrangement being such that in the structure the perforations in the board are not obstructed by the latex coating on the back surface of the carpet material. Carpet material 6 may be composed of nylon fibres needled together. Dots of adhesive 14 may be sprayed on to the back of the carpet to produce a discontinuous coating. Adhesive coating 14 may comprise carboxylated styrene butadiene rubber latex, tetrasodium pyrophosphate dispersant, sodium polyacrylate thickener, aluminium trihydrate fire retardant and water, and adhesive coating 12 may comprise toluol, glycerol ester of polymerized rosin, chlorinated paraffin, neoprene, an antioxidant and water. Panel structures may be produced by pressing a continuous length of adhesive-coated carpet on to sheets of adhesive-coated baseboard wrapping the carpet at least partly round the edge of the baseboard, and cutting off the carpet at the end of each baseboard.
Patent GB-497036-A (GB)
Abstract: 497,036. Calculating - apparatus. REMINGTON RAND, Inc. June 11, 1937, No. 16281. Convention date, June 17, 1936. [Class 106 (i)] The accumulator mechanism of a calculating machine is provided with a transfer mechanism including selectively adjustable means settable to cause transfer to take place on the passage of an accumulator element from either one or other of two digits to the next digit, thereby enabling the result of a calculation to be rounded off. The invention is shown applied to a machine of the type described in Specification 307,407, [Class 106 (i)], wherein the results of a calculation are segregated into a series of receivers 93, Fig. 1, arranged in banks on a series of parallel operating shafts 91 each carrying a stepped head or register 110. Fingers 120, Figs. 1 and 4, are adapted to be operated to co-operate with the steps 111 to transmit the setting to the type elements 128, Fig. 10. The excess setting of a receiver bank is transmitted to the next higher bank by a transfer mechanism comprising a cam disc 112 that engages the teeth of a comb plate 114 to which is attached a lug 118 that co-operates with steps 940 on a receiver of the next higher bank. In accordance with the present invention, for rounding off to the nearest digit, the cam discs 112 are replaced by cam discs 16 which are angularly adjustable from a normal position. As shown in Figs. 4 and 5, a sleeve 10 is slidably mounted on a shaft 91 and is provided with a slot 11 engaging a pin 12 on the shaft. Loosely mounted on the sleeve 10 is a second sleeve 14 with a screw 18 projecting into a helical slot 19 in the sleeve 10. The sleeve 14 has a reduced portion on which the cam disc 16 is secured. Longitudinal movement of the sleeve 14 is prevented by a. U-shaped bracket 15. Longitudinal movement of the sleeve 10 to adjust the angular position of the cam disc 16, is effected by the engagement of a flange 20 thereon with a swivel post 28 on a pivoted T-shaped arm 25 connected to a link 30. As shown in Fig. 1, three adjustable cam discs are provided selectively adjustable by setting the appropriate links 30. Each link, at its forward end, has a handle 31, Fig. 3, and is formed with notches 34, 35 for cooperation with a comb plate 32 to hold the link in one or other position. In order to prevent the printing of digits in the denomination to be rounded off, and in all lower denominations, means are provided for selectively blocking the impression hammers. The known blocking device, for normal working, comprises a comb member 40, Figs. 9 and 10, adapted to be shifted to locate the comb teeth over the ends of the hammers 141, which are normally held by latches 154. The comb 40 is slidably mounted in a frame 142 and is shifted by operation of a subtraction key (not shown), or by manipulation of a handle 42 slidable on a bar 44 and operatively connected to a short comb plate 49. The lever 42 is held in adjusted position by a latch 52. The additional means for selectively blocking the lower denominations comprises a comb 60 controlled by a lever 62 and latch 65.
Patent GB-1118229-A (GB)
Title: Improvements in or relating to lids for containers
Inventor: GUNN CHARLES NEWMAN
IPC: B65D43/02
Filed: 1966-11-09
Abstract: 1,118,229. Stamping. WILKIE & PAUL Ltd. 3 Aug., 1967 [9 Nov., 1966], No. 50101/66. Heading B3Q. [Also in Division B8] A drawing die for blanking and stamping a rectangular tin lid (20), Fig. 2 (not shown), from tin plate, the lid having an inwardly directed projection (25) adjacent each of its side skirts (see Division B8), has dies 10, 14, 15, Fig. 1, upon which a sheet of tin plate is placed so that an ejector 11 and a punch 12 can be lowered upon it. When the ejector 11 lies on the tin plate, its downward movement is arrested. Recesses and projections 23, 24 on the inner die 10 and the ejector 11 form the projections (25) adjacent the lid skirt. The punch 12 continues its downward movement, engaging a die ring 14 to blank the sheet of tin plate. The punch 12 and die ring 14 now move downwards together, to draw out the tin plate and form the lid skirt. The punch 12 then retracts, the ejector 11 remaining stationary, and a curl groove 17 in the die ring 14 curls the lower edge of the lid-skirt outwardly as the die ring rises. Finally, the ejector 11 lifts with the punch 12, carrying the stamped lid, -which is removed by a knock-out bar.
Patent GB-1514590-A (GB)
Title: Electrodes for glass furnaces
IPC: C03B5/03
Filed: 1975-12-05
Abstract: 1514590 Glass melting electrodes PICKFORD HOLLAND & CO Ltd 30 Nov 1976 [5 Dec 1975] 50118/75 Heading H5H A glass melting furnace electrode is connected to the electrical power supply via a noble metal connector sleeve 4 surrounding a plug 6 of material having the same thermal expansion characteristics as the ceramic electrode body, the sleeve and plug being inserted in a corresponding hole 2 in the electrode body 1. Electrode body is of tin oxide; plug may be of tin oxide, zircon or mullite. Sleeve 4 is of silver, and may be 0À4 mm thick sheet with a split (5, Figs. 1,3) along the plug. A clamp 7 surrounds the sleeve and is connected to the supply via a lead 10.
Patent GB-1164860-A (GB)
Title: Apparatus for controlling the supply of gas to instant water heaters in circulation heating systems.
IPC: F23N1/08
Filed: 1967-11-06
Abstract: 1,164,860. Valves. JOH. VAILLANT K.G. 6 Nov., 1967 [4 Jan., 1967], No. 50241/67. Heading F2V. [Also in Divisions F4 and G3] An instantaneous gas water heater for a heating circuit with flow and return lines 6, 5 has a by-pass line 9 controlled by a change-over valve 8 and has the gas flow in duct 2 controlled by a valve 3 via a spring-loaded actuator 14 which is responsive to the pressure difference in lines 17, 18 connected to Venturi 13 in bypassable line 6<SP>1</SP>. The valve 8 is actuated by a servomotor 12 and has the closure member 81 constructed as a thermostatic expansion body so as to open the by-pass line 9 when the water in the circuit is cold and when water is drawn off via heat exchange coil 10<SP>1</SP>. In another embodiment (Fig. 2, not shown) the gas control valve is in the form of an apertured disc (29) which is rotatable below a similar apertured valve seat (23) through rod (32) by an actuator (14<SP>1</SP>) responsive to the pressure difference in lines (x), (y) connected to Venturi (13<SP>1</SP>). A gas safety valve (3<SP>1</SP>) is loaded on to seat (23) and is opened by an electromagnet (25) which is energized when actuator (27) responsive to flow in Venturi (28) closes contacts (26). The armature of the electromagnet has a slow ignition damper (24).
Patent GB-1451806-A (GB)
Title: Filter devices for the filtration of swimming pool water
IPC: B01D24/14
Filed: 1973-11-01
Abstract: 1451806 Swimming pool niters PUREX CORP 1 Nov 1973 [9 Nov 1972 29 June 1973] 50738/73 Heading B1D [Also in Division F2]  A swimming pool filter comprises rotatable valve member 80 having filtering, backwashing and rinsing positions. The valve body 36 (Fig. 5) comprises an inlet chamber 56 having inlet ports I-1, I-2, a return chamber 57 having port 0 and a waste discharge chamber 58 having port B. Valve member 80 has two apertures 81, 82 for selectively closing and opening the ports and carries sealing means 43 for the ports. Member 80 is integral with elbow-shaped member 76 (Fig. 4) which is axially and rotatably movable on pipe 18 and is positioned in perforated shell 70 which supports a perforated plate 74. To allow rotation of the member 80 handle 84 is depressed to disengage locking means 86 from ring 95 and sealing means 43 from plate 38. A one-way slidable poppet valve 100 (Fig. 11) is provided in the valve body to prevent fluid entering vessel 11 through port B. In the filtering position water from the pool is passed through line 25, chamber 56, port I-1, aperture 81 and shell 70 to filtermedium (e.g. sand) 19 and the filtered water is discharged via members 20, pipe 18, aperture 82, port 0, chamber 57 and line 26 to the pool. In the backwashing position the water is passed through port I-1 and pipe 18 to the filter medium 19 and is discharged via shell 70 and port B to a waste discharge line (not shown). In the rinsing position the water is passed through inlet port I-2 and shell 70 to medium 19 and discharged via pipe 18 and port B to the waste discharge line.
Patent GB-1147432-A (GB)
Title: Nuclear reactor fuel element assemblies
Inventor: CAMPBELL RONALD HUGH
IPC: G21C3/32
Filed: 1965-11-30
Abstract: 1,147,432. Fuel elements. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. 17 Nov., 1966 [30 Nov., 1965], No. 50739/65. Heading G6C. A fuel element assembly has a cluster of spaced, parallel fuel elements with a cellular spacing grid or grids disposed between the ends of the cluster for spacing the fuel elements, each sheathed element having a continuous column of pellets of fissile material contained within a line series of outer sheaths, the sheaths being end joined by internal sleeves to define waisted portions of the fuel elements of lesser outside diameter than the sheaths, the waisted portions being received within cells of the spacing grid or grids and the sleeves being joined to the grid or grids. A plurality of such clusters may be arranged end-to-end within the assembly. The assembly may be of zirconium alloy throughout, except for the pellets which are of unenriched uranium oxide. In the embodiment described, each cluster comprises thirty-six spaced, parallel fuel elements arranged on three concentric pitch circles about a central tube and the clusters are supported on a tie tube which passes through the central tube of each cluster. By forming waisted portions in the fuel elements, the grid cells can be situated close together so as to enable the fuel elements to be closely spaced, with a consequent increase in the fuel/coolant ratio.
Patent GB-1473379-A (GB)
Title: Process for the manufacture of maleimides
IPC: C07D207/448
Filed: 1974-11-22
Abstract: 1473379 Maleimides from maleamic acids CIBA-GEIGY AG 22 Nov 1974 [22 Nov 1973] 50761/74 Heading C2C Mono- and polymaleimides are made by cyclizing dehydrating the corresponding maleamic or polymaleamic acids by heating in the presence of a C 2-5  alkane-carboxylic acid anhydride, a tertiary amine and 0À005-0À2 mol. alkaline earth metal compound (per mol. maleamic acid) and optionally an organic solvent.
Patent GB-1281948-A (GB)
Title: High-voltage testing transformer arrangements
Inventor: MARCINKOWSKI HORST
IPC: H02J3/18
Filed: 1969-10-17
Abstract: 1281948 Protective systems for capacitively loaded transformers TRANSFORMATORENUND RONTGENWERK DRESDEN VEB 17 Oct 1969 51045/69 Heading H2H A system comprising a transformer or a number of transformers connected in cascade and used for testing apparatus which is predominantly capacitive is provided with a choke which is switched in parallel with a transformer winding when a predetermined current or power factor exists. Thus the capacitive reactive current is compensated and overloading of the choke avoided. A plurality of chokes may be used which are connected to the system successively. Furthermore the choke may be transformer coupled to the system, the transformer being variable, or it may be disconnected from the system if it tends to become overloaded.
Patent GB-1302426-A (GB)
IPC: F02F1/16
Filed: 1970-11-03
Abstract: 1302426 Casting composite articles MASCHINENFABRIK AUGSBURG-NURNBERG AG 3 Nov 1970 [3 Nov 1969] 52308/70 Heading B3F [Also in Division F1] A system of tubes 16 is cast in a cylinder liner 13 for cooling liquid. Three semi-circular tubes 16 connected by tubes 19 at their ends and having an inlet tube 21 are supported in each of the two halves of a mould by holders 18, Fig. 3. The mould halves are brought together around an upright core and casting material flows past the tubes 16 to the lower region of the liner 13.
Patent GB-1066550-A (GB)
Title: Process for the manufacture of polyorganosiloxane elastomers
IPC: C08K3/32
Filed: 1964-12-29
Abstract: Polyorganosiloxane elastomers are prepared by curing (e.g. with an organic peroxide) a mixture of an active filler which has been reacted in the presence of a condensing agent with an organic silicon compound (I) containing an average of 0.1 to 2 Si-bonded OH groups and 1 to 3 Si-bonded organic radicals per Si atom, the remaining Si valencies being satisfied by siloxane oxygen atoms and a polydiorgano-siloxane (II) that can be cured to form an elastomer.  A phosphorus nitrile chloride is used as condensing agent.  Examples of I are a poly-organosiloxane resin, trimethylsilanol, diphenylmethysilanol, phenyldimethylsilanol, diphenylvinylsilanol, dimethylsilanediol, phenylmethylsilanediol, or a polysiloxane containing not more than 20 Si-atoms per molecule (e.g. a phenylmethylpolysiloxane). The active filler (e.g. silica, alumina) may have a surface area of 50 m2/g. and particle size of 0.1 to 10 m . Silicon dioxide aerogels or xerogels are suitable. All or some of the SiOH or AlOH groups in the filler may be esterified with an aliphatic alcohol. The filler may be present at from 10 to 200% based on the weight of II.  The organic Si-compound (I) may be used at from 1-60% based on the weight of the active filler.  The organopolysiloxane II may be linear and contain at least 50 siloxane units per molecule.  The terminal units of II may each contain an OH group and up to 50% of the siloxane oxygen atoms may be replaced by divalent organic radicals.  It may have the average general formula <FORM:1066550/C3/1> in which R is a monovalent hydrocarbon radical which may be substituted, x has an average value from 0.99 to 1.01, y has an average value from 1.99 to 2.01 and x+y=3; n is at least 50. Its viscosity may be at least 100 and preferably at least 100,000 cs. at 25 DEG  C.  Preferably none of the monovalent organic radicals in II contain more than 19 carbon atoms.  An example contains 99-85 mol. per cent dimethyl-siloxane units and 1 to 15 mol. per cent diphenyl-siloxane and/or phenylmethylsiloxane units. The phosphorus nitrile chloride may be a polymeric product obtained by reacting PCl5 with NH4Cl, and it may be used in an amount of 0.0002 to 2% based on the weight of the active filler. The reaction between the active filler and I may be effected prior to mixing with II by mixing the reactants with the condensing agent between room temperature and 180 DEG  C. in an inert solvent if necessary.  Alternatively, the reaction may be carried out after mixing I and II and allowing the mixture to stand 1-8 days at room temperature.  The mixture may also contain a non-reinforcing filler, e.g. diatomaceous earth.