baber/WOPTO huggingface dataset:
Patent GB-970948-A (GB)
Title: Novel barbituric acids with aromatic substituents
Filed: 1961-12-22
Abstract: The invention comprises compounds of general formula <FORM:0970948/C1/1> wherein X is phenyl, fluorine, chlorine, bromine or iodine in the ortho or para position, and R is an ethyl or allyl radical. The compounds are prepared by condensation of substituted malonic acid ethyl esters with urea.  Ethyl substituted-phenyl-acetates prepared are ethyl 4-biphenylyl-acetate by treating the acid with thionyl chloride so forming the chloride and treating this with ethanol, ethyl p-fluorophenylacetate by treating the acid with sulphuric acid and ethanol, ethyl p-chlorophenyl-acetate by treating the nitrile with ethanol and hydrogen fluoride, ethyl p-bromophenyl-acetate by treating the acid with ethanol and hydrogen chloride, and ethyl p-iodophenyl-acetate by treating p-iodobenzyl-bromide with potassium cyanide to form the nitrile and thence obtaining the ester.  Ethyl esters of substituted-phenyl-malonic acids are prepared by condensing the acetates with ethyl oxalate, sodium salts being initially formed of intermediate oxalacetic acid esters, and decarboxylating with heat. Reaction with compounds R-halogen then yields C,C-substituted malonic acid ethyl esters.  Specification 825,832 is referred to.
Patent GB-1185159-A (GB)
Title: Preparation of 1-Carboxy-Benzimidazole Derivatives
Inventor: HUGHES DAVID
IPC: C07D235/10
Filed: 1966-10-14
Abstract: 1,185,159. Preparation of benzimidazoles. FISONS PEST CONTROL Ltd. 29 Sept., 1967 [14 Oct., 1966], No. 46173/66. Heading C2C. Substituted benzimidazoles of the general formula wherein R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> may be the same or different and are H, alkyl, alkoxy, nitro, halogen, pseudo-halogen (i.e. cyano, thiocyano, isothio-cyano or azido), substituted alkyl, carboxyester, carboxyamide, N-substituted carboxyamide, amino, mono- or di-substituted amino, thiol, alkylthio and oxygenated derivatives thereof (i.e. -SOR<SP>6</SP> or -SO 2 R<SP>6</SP> where R<SP>6</SP> is alkyl), sulphonic esters and amides thereof and substituted amides, and a heterocyclic ring attached to the benzimidazole system through a N-atom, X is CF 3  or C 2 F 5 , R<SP>5</SP> is alkyl, substituted alkyl, aryl or substituted aryl, are prepared by reacting a compound of the general formula wherein R<SP>7</SP> is H or a cation, with a chloroformate Cl.COOR<SP>5</SP>, wherein the reaction is carried out in an aqueous medium in the presence of an alkali, at a temperature below the melting point of the product, allowing the product to precipitate from the reaction medium and separating the product. The process is preferably carried out in the presence of a water soluble organic solvent which is a solvent for the chloroformate, e.g. methanol, ethanol or isopropanol using Na or K hydroxide or carbonate as the alkali. A temperature of 10- 30‹ C. and a final pH of 7À5-10 are advantageously used. In the examples 5,6-dichloro-2- trifluoromethyl-benzimidazole is reacted with phenyl chloroformate in the presence of NaOH to yield 5,6-dichloro-1-phenoxycarbonyl-2-trifluoromethyl benzimidazole. Ethyl-and isopropyl-chloroformate may replace the above mentioned chloroformate.
Patent GB-1132296-A (GB)
Title: Process for the preparation of a fried potato product and oven for frying a pre-fried potato product under reduced pressure
IPC: A23L19/18
Filed: 1967-10-11
Abstract: 1,132,296. Frying potato crisps and sticks. INSTITUT VOOR BEWARING EN VERWERKING VAN LANDBOUWPRODUKTEN. 11 Oct., 1967 [28 Oct., 1966], No. 46481/67. Heading A4D. A fried potato product e.g. crisps or sticks is made from peeled, sliced potatoes by firstly frying in oil to a moisture content of 5-20% by weight, then frying in oil under reduced pressure at a temperature not exceeding 100‹C. to give a product having a moisture content of less than 2.5%. The crisps are prepared in an oven having a closed housing 1 with at least one supply sluice 6 and at least one discharge sluice 7, a suction pipe 2 connected to a pump 5 for sucking off water vapour and maintaining reduced pressure; a belt conveyer 8 for carrying cuttings through the oil for cooking, a conveyer 27 obliquely inclined for removing cuttings from the oil, a vibrating frame 31, and means for supplying, discharging and circulating the oil. The supply and discharge sluices preferably have boxes 36 which house lids (37) that can be moved to seal the entrance and exit to the oven.
Patent GB-1403604-A (GB)
Title: Circuit arrangement for producing a constant direct voltage  from a direct voltage subject to variation
IPC: G05F1/563
Filed: 1972-10-09
Abstract: 1403604 Automatic voltage regulation VEREINIGTE FLUGTECHNISCHE WERKE-FOKKER G.m.b.H. 9 Oct 1972 [17 Dec 1971] 46524/72 Headings G3R and G3X A D.C. to D.C. supply circuit includes a series voltage regulating transistor and an intermediate transformer. The transformer has a separate secondary winding for energizing a device controlling the transistor, and is supplied through an overload protection circuit. In the embodiment of Fig. 1, an unregulated D.C. supply in an aircraft is connected through a pre-regulator 10, transducer 11 and regulator circuit 12 to produce a stabilized D.C. voltage at output terminals 80, 81. The pre-regulator 10 includes zener diodes 24, 26, 31 for overload protection, and a series transistor 28 controlled by a further transistor 27. The circuit 10 thus supplies a partially stabilized voltage to the transducer 11 which includes a high frequency oscillator 35, 36 connected to a transformer 37. A first secondary winding 40 is connected through a full-wave rectifier circuit 50, 51 to supply an output voltage to series regulating transistor 60 which is controlled through a transistor 63 by an integrated control circuit 68 formed as an operational amplifier, Fig.3 (not shown). The control circuit is powered from a secondary winding 41 of transformer 37 and receives a signal indicative of output voltage from a potential divider 72, 73, 69, 70. A resistor 64 provides a signal proportional to line current to allow current-limiting operation. An-filter 74-76 and protective Zener diode 77 are connected across output terminals 80, 81.  In another embodiment, Fig.2 (not shown), the series regulating transistor (100) is operated in a pulse width regulation mode. An additional circuit is included to prevent operation of the regulator circuit if the input voltage is very low in order to prevent saturation of the core of transformer 37.
Patent GB-1409913-A (GB)
Title: Article storage and diespensing device
IPC: B65G1/08
Filed: 1972-10-10
Abstract: 1409913 Storing and dispensing articles MASCHINENFABRIK WIESBADEN GmbH 10 Oct 1972 [26 Nov 1971] 46630/72 Heading T A storage and dispensing device for same size articles, e.g. tape cassettes, comprises a bank of compartments in vertical and horizontal rows, the gravity discharge of an article being controlled by two stops, one in a horizontal line and the other in a vertical line of connected stops. The compartments are formed by vertical rows of "combs" 4, 4a, Fig.2 inclined towards a vertical shoot 12 and cassettes 1 are held on surface 4 by a stop 6 connected to a vertically displaceable plate 10 guided by rods 25 and moved by shaft 21, each plate normally being supported on a pin 19 controlled by solenoid 23, and by a stop 5 slightly spaced from the cassette top and connected with a flap 11 to a shaft 9 rotatable by a magnet. When a cassette in a compartment having given vertical and horizontal co-ordinates is required, the appropriate plate 10 is released from its supporting pin 19 so, that all the vertical stops 6 fall below all the cassettes in the vertical column, but they are held in position by stops 5. The appropriate horizontal shaft 9 is rotated by its magnet and where the shaft crosses the released plate 10, stop 5 and flap 11 are moved to positions 5a, 11a so that cassette 1a slides into shoot 12 and falls on to conveyer 15 past braking flaps 11, 14 and resilient members 14a. To replace a cassette, plate 10 is lifted on to' its pin 19 by a motorized eccentric raising shaft 21 so that stops 6 are in their blocking position and the shaft 9 is rotated to bring stops 5 and flaps 11 into blocking position. Movable along the bank of compartments in front of their raised open ends 4a is a vertical shoot 33, 34, Fig.7, open fronted at 34a end containing motorized braking and ejection flaps 36, 35. Cassettes are placed on conveyer belt 17 and directed by guides 39, 38, 38a into the shoot, fall on to a selected horizontally positioned flap 35a where brake 36 is released and the flap tilted as at 35b so that the cassette slides into a selected compartment opposite which shoot 33 has been positioned. The insertion shoot 33 may be replaced by an endless vertical conveyer belt carrying sloping shelves which stop in front of a selected compartment so that a cassette can slide thereinto when a hinged flap is lowered. Various kinds of tiltable compartments and stops are disclosed and in another embodiment, Fig.9, the cassettes 1 are side by side without side partitions on horizontal shelves 55 tiltable at 54, each cassette being held on a sloping shelf by grippers, magnets or by suction applied via passages 56, 57, 57a until a selected cassette is released. To replace a cassette it is pushed into vertical side shaft 58 to rest on a carrier 59 for a selected shelf. The carrier is then moved into the shelf end to close any empty spaces and push the cassette on to the end of the shelf row.
Patent GB-1395582-A (GB)
Title: Toy chassis assembly
IPC: A63H17/26
Filed: 1972-10-11
Abstract: 1395582 Toy motor car chassis IDEAL TOY CORP 11 Oct 1972 [27 Oct 1971] 46817/ 72 Heading A6S A chassis 10 for a miniature coaster toy motor car, comprises a flat body metal diecasting 14 of heavy metal, as shown having transverse channels 26, 28 to receive axle housings 32 in a bearing plate 16, Fig 3 (shown inverted) secured to the body together wth an underplate 18, Fig 4. The bearing plate 16 is of a low friction material such as nylon, &c, while the underplate 18 is of the same heavy metal as the body 14. Pins 42 depending from the body diecasting extend through holes 44, 60 in the bearing plate 16 and underplate 18, the pins being glued, &c, within the holes or retained solely by friction. The wheels 22 may be of nylon, and are either fast with or journalled for rotation upon axles 20, Fig 5. The ends 54 of the axles 20 are either bent over, as shown, or formed as simulated hub caps (56), Fig 6 (not shown). The rear wheels 24 are of larger diameter than the front wheels 22, and the rear channel 28 is proportionally deeper than the front channel 26, so that the car is level when placed upon a flat supporting surface. Recesses 48 in the axle housings 32 are so dimensioned as to allow slight vertical movements of the axles 20, and thus accommodate bumps in the supporting surface. The channels 26, 28 may be deeper than the outside height of the axle housings 32, to allow further slight vertical movements. The chassis 10 is removably mounted within a toy motor car body 12, and may be readily attached in another such body. In an alternative form, the recesses 48 are formed entirely within the thickness of the bearing plate 16, and the body 14 has a flat underside without the recesses 26, 28.
Patent GB-1117633-A (GB)
Title: Apparatus for automatically correctly positioning the links of a chain
IPC: B21L3/02
Filed: 1965-11-04
Abstract: 1,117,633. Making chains; welding by pressure. EISENUND DRAHTWERK ERLAU A.G. 4 Nov., 1965 [5 Nov., 1964], No. 46853/65. Headings B3A and B3R. Apparatus for correctly positioning for welding wrongly positioned links of a chain by turning these around an axis perpendicular to the plane of the link comprises a guide rail for the chain and a device for sensing the disposition of a link the device being capable of detecting a link requiring turning and upon so detecting a link to actuate means to cause a turning member to move into the link to turn the link to its correct position. A chain 3, Fig. 1, having unwelded links is fed over a guide rail 1 to a welding machine, the movements of the chain being controlled by a control shaft 19 of the welding machine. The sensing device 4 comprises a lever 10 pivoted on an axis 11 and feelers 6, 7, 8 formed by electrical contacts on a housing 9 carried on the lever 10 and the turning member comprises a member 12 extending from a toothed wheel meshing with a rack 14 reciprocated in guides 15 by lever gear 16 driven from the control shaft 19. The toothed wheel is arranged in a bracket which is secured to the armature of an electromagnet so that energization of the electromagnet causes the toothed wheel to move towards the chain and the member 12 to be inserted into a link. An end face 18 on the rack contacts a roller 20 carried on the lever 10 so that during movement of the rack the feelers 6, 7, 8 are moved towards and away from the chain. When the feelers are lowered on to the chain the feeler 7 contacts a correctly positioned link but the feelers 6, 8 contact an incorrectly positioned link and in the latter case the feelers cause the electromagnet to be energized to move the member 12 into the link and rotate the same through 180 degrees while the chain is stationary. After the link is turned through 180 degrees the member 12 is moved out of the link and is turned through 180 degrees in the opposite direction. A photo-electric sensing device may be used instead.
Patent GB-1194729-A (GB)
Title: Improvements in or relating to Temperature-Responsive Force-Transmitting Devices
Inventor: VERNET SERGIUS
IPC: G05D23/02
Filed: 1967-10-13
Abstract: 1,194,729. Temperature responsive actuating elements. ANTIOCH COLLEGE. Oct.13, 1967, No.46879/67. Heading G1D. A temperature responsive force transmitting device comprises a casing 10 containing an expansion material 15, a guide member 17 for a piston 16 and a seal 24 extending across the complete interior cross-section of the casing. The seal, which is formed of rubber or similar material, has a bead 29 which engages a groove 28 in the guide member 17 and a lip 25 which is compressed between the inner wall of the casing and the guide member. The expansion material is a wax substance which may be impregnated with a metallic powder. The bottom end of the casing is closed by a resilient disc 14 and a metal disc 13 but the casing may be formed with an integral bottom end. The guide member may be formed of a water permeable material such as sintered metal and several modifications of its shape are described. A guide member is also described in which the lower end of the bore for the piston is filled by a resilient plug.
Patent GB-1395879-A (GB)
Title: Flow divider for a palletiser
IPC: B65G47/08
Filed: 1971-10-08
Abstract: 1395879 Transferring articles between belt conveyers J A MARTIN and W J M R E OWEN [trading as OMNI SYSTEMS] 8 Jan 1973 [8 Oct 1971] 47083/71 Heading B8A Articles passing successively from a conveyer or shoot 28 are deflected in respectively opposite lateral directions by a plate 1 which is moved by a pneumatic cylinder and piston device 8. The articles thus form two streams side-by-side on a downstream conveyer 5. The plate 1 is carried by a frame 2 on which the cylinder 8 is rigidly mounted. Pistons 9, 10, have their respective ends fixed relative to the apparatus. A pivotable plate 23 ensures that the articles are guided to the correct side of the plate 1. In operation, an article passing from the conveyer 28 on to the conveyer 5 is guided by a pivotable flap 23, on to the left-hand side of the plate 1. It then operates a limit switch (not shown) which results in leftwards (as viewed in the direction of the arrow) movement of the plate 1. A cam follower 25 connected to the plate 23 engages a stop 27, and this causes the plate 23 to be deflected into a position in which it guides the next article to the right of the plate 1 (in the new position of the latter). The limit switch is again operated by the article which is then deflected to the right, and so on. The cam follower 25 then engages a cam 26 similar to the cam 27. The cam follower 25 may be replaced by a linkage arrangement having the same effect. The air cylinder 8 may be replaced by hydraulic or electrical devices. The limit switch may be replaced by a photo-electric cell. Specification 1,395,490 is referred to.
Patent GB-1527362-A (GB)
Title: Hair curlers and rollers
IPC: A45D2/24
Filed: 1975-11-14
Abstract: 1527362 Hair curlers S MULLER 14 Nov 1975 [15 Nov 1974 18 Jan 1975] 47102/75 Heading A4V A hair curler comprises a substantially cylindrical body 1 having at least two equal flanges 3, 4 provided on an end of the body, the width of the groove 5 formed therebetween being slightly less than the axial thickness of the flanges and tapering towards its base to allow adjacent curlers to be mutually engaged as shown. A connecting wire (7), Fig. 6 (not shown), may be provided having a diameter slightly greater than the width of the groove to connect together a plurality of curlers. The curler may optionally be provided with a narrower portion (6), Fig. 4 (not shown), adjacent the inner flange 3. Apertures (2), Fig. 2 (not shown) may also optionally be provided in the curler body, the body together with the flanges being formed from resilient plastics material.
Patent GB-1197500-A (GB)
Title: Process for the preparation of Novel Nickel Alcoholates and the Parent Alcohols thereof
Inventor: WILKE G
IPC: C07D321/00
Filed: 1967-10-17
Abstract: 1,197,500. Alcohols and nickel alcoholates. STUDIENGESELLSCHAFT KOHLE m.b.H. 17 Oct., 1967 [26 May, 1967], No. 47171/67. Heading C2C. [Also in Division C5] Nickel alcoholates and their parent alcohols are prepared by (a) allowing carbonyl compounds and 1,3-diolefins to react with complexes of nickel (o) or (b) reacting #-allyl nickel compounds with carbonyl compounds and if desired hydrolysing the nickel alcoholate to the parent alcohol. The invention further comprises #-allyl-nickel alcoholates and the following alcohols: octene-(4)-diol-(2,7); 1,6-diphenyl-trans-hexane - (3) - diol - (1,6); 1,10 - diphenyldecatri- 1,5,9 - ene - diol - (3,8); 1,14 - diphenyltetradecapentaene - (1,3,7,11,13) - diol- (5,10); the compound of the formula 2,7 - dimethyloctene - (4) - diol - (2,7); 1,4 - di- (cyclohexanolyl - 1) - butene - (2); 2,7 - diphenyloctene - (4) - diol - (2,7); 1,6 - diphenyl- (3) - methylhexene - (3) - diol - (1,6); 1,6 - diphenyl - (3,4) - dimethylhexene - (3) - diol- (1,6); 1,3,4,6 - tetraphenylhexene - (3) - diol- (1,6); 1 - phenylbuten - 3 - ol; 1,6 - bis (4- methoxyphenyl) - hexene - (3) - diol - (1,6); 1,6- di - (p - dimethylaminophenyl) - trans - 3- hexene - 1,6 - diol and 1,6 - di - (2 - furyl)- trans-3-hexene- 1,6-diol.
Patent GB-1144709-A (GB)
Title: Improvements in or relating to push button tuners
Inventor: STAMM RUSSELL DOUGLAS
IPC: H03J5/12
Filed: 1967-10-17
Abstract: 1,144,709. Toothed gearing. GENERAL INSTRUMENT CORP. 17 Oct., 1967, No. 47330/67. Heading F2Q. [Also in Division H3] The Specification describes a clutch for disconnecting the manual tuning of a radio receiver when a push-button is pressed in (see Division H3). A tuning knob on shaft 110 rotates a pinion 112 to turn a crown-wheel 114 which via a friction disc 124 drives a clutch disc 126 on a shaft 116 inside a fixed sleeve 128. The shaft 116 carries a pinion 118 meshing with a gear segment 120 on the tuning shaft. When a button is pressed in, the far end of slide 42 or 44 engages a cam surface 138 to urge a plate 132 to the left against a spring (134 in Fig. 5, not shown). This moves a bushing 130 to pull the crownwheel 114 away from the friction disc and disengage the manual tuning drive. Backlash is prevented by making the gear segment 120 in split form with compression springs (124 in Fig.3,  not shown) and by arranging for a plate 142 to press the pinion 112 into engagement with the crown-wheel 114.
Patent GB-1486434-A (GB)
Title: Motor compressor unit
IPC: F04B39/00
Filed: 1974-11-01
Abstract: 1486434 Motor compressors DANFOSS AS 1 Nov 1974 [2 Nov 1973] 47378/74 Heading F1N [Also in Divisions F2 and F4] The vibrations of a motor driven reciprocating refrigerant compressor mounted in a sealed casing 12, 13 are damped by a non-metallic mass 15 secured to the exterior of the casing 12, 13, the mass 15 being at least one half that of the mass of the casing. In a first embodiment Fig. 1 (not shown) the damping mass is secured to the bottom of the casing to form a base therefor, the base having handles (1) for engagement by releasable fastenings 8 on the refrigerator. Alternatively the damping mass 15 is a layer of material which partially or completely encompasses the casing and is preferably of quick setting reinforced concrete having a stone additive with a particle size of up to 8 m.m. Other materials include glass, gypsum, stone and ceramics. Preferred properties of the layer are stated to be a mechanical point impedance of 200 Ns/m at its outer surface; a thermal conductivity of 0À5 K cal./ mhC; a specific heat of more than 0À15 K cal./ kgC; and; a thickness of between 0À5 and 4À5cm. An outer skin 16 surrounds the damping mass, the skin being a layer of lacquer or a sheet metal enclosure into which the concrete, while liquid, is poured. Alternatively the concrete may be sprayed or formed of several prefabricated parts bonded to the casing, the latter being of 3mm. sheet steel. In use the casing is mounted on a platform 19 separated from the floor 21 by rubber parts 20.
Patent GB-1025715-A (GB)
Title: Method of obtaining an intermetallic compound of niobium and tin in fabricated form
Inventor: BARBER ANTHONY CLIFFORD
IPC: H01L39/00
Filed: 1962-12-17
Abstract: A compound of tin and niobium having the structure Nb3Sn is prepared in the form of at at least one continuous layer in a fabricated article by (a) assembling a composite rolling slab comprising a layer of tin between layers of niobium or of a layer of tin between a layer of niobium and a layer of any metal, e.g. copper, which will not interfere with the reaction between tin and niobium, (b) cold-rolling the slab into a sheet, (c) forming the sheet into an article of desired shape and (d) heating the article at between 650 DEG  C. and 1150 DEG  C.  The rolling slab may consist of a sheet of tin at least partially enclosed by a sheet of niobium. Preferably the edges of the niobium sheet overlap, as in Fig. 1 (not shown).  Alternatively the slab may consist of a layer of tin powder between sheets of niobium, thin sheets of niobium and tin between sheets of niobium or a compatible metal, or tin sheet or powder bounded on one side by a sheet of niobium and on the other by a sheet of a compatible metal.
Patent GB-1145522-A (GB)
Title: Improvements in or relating to methods of etching and apparatus therefor
IPC: H02P5/46
Filed: 1966-10-24
Abstract: 1,145,522. Etching. CHEMCUT CORP. 24 Oct., 1966 [11 Oct., 1966], No. 47594/66. Heading B6J. Metal is etched from articles conveyed through an etching spray chamber 20, Fig. 5, on a roller conveyer, while a control strip comprising a layer of the same metal on a translucent support is fed through a test cell 46 where it is etched by liquid from oscillating spray nozzles 100. The absence of the metal from the strip is detected by a photo-electric cell 68 which controls the speed of the roller conveyer through closed loop feedback means controlling the output of a motor driving the conveyer, the arrangement being such that if remaining metal extends to a line central to the photo-electric cell, the conveyer speed is that desired. The conveyer and strip feed are synchronized. The etchant sprays 100 and those in the chamber 20 are oscillated. Air jets remove moisture from the strip as it passes the photoelectric cell.