baber/WOPTO huggingface dataset:
Patent GB-790614-A (GB)
Title: Novel carotenoid compounds and the manufacture of same
IPC: C07C29/42
Filed: 1955-12-21
Abstract: The invention comprises 4,41-disubstituted-15,151-dehydro-b -carotenes, wherein both substituents are hydroxy or acyloxy groups, and the corresponding 15,151-monocis- and alltrans - 4,41 - disubstituted - b  - carotenes, and a process for the manufacture thereof, which process comprises condensing acetylene in a metalorganic reaction with 8-[21,61,61-trimethyl-cyclohexen - (21) - ylidene - (11)] - 2,6 - dimethyloctatriene-(2,4,6)-al-1, chlorinating and brominating the resulting 1,18-di-[21,61,61 - trimethyl cyclohexen - 21 - ylidene - 11] - 3,7,12,16 - tetramethyl-8,11-dihydroxyoctadecahexaene-(2,4,6,12,14,16) -ine-(9), replacing both the chlorine or bromine atoms in the 4,41-di(chloro or bromo)-15,151-dehydro-b -carotene by hydroxyl groups or acyloxy groups, and, if desired, catalytically hydrogenating the 4,4-di(hydroxy or acyloxy)-15,151-dehydro-b -carotene obtained so as to reduce the triple bond therein to a double bond, and, if desired, maintaining the 15,151-monocis-4,41-di(hydroxy or acyloxy)-b -carotene thus obtained under isomerization conditions to obtain the corresponding all-trans-4,41-dihydroxy or acyloxy-b -carotene.  The condensation may be effected by reacting acetylene with 2 mols. of aldehyde in a Grignard reaction or by reacting the acetylene in the form of an alkali metal or alkaline earth metal derivative thereof, with 1 mol. of aldehyde in liquid ammonia and condensing the 10-[21,61,61 - trimethyl - cyclohexen - (21) - ylidene - (11)] - 4,8 - dimethyl - deca triene-(4,6,8)-ine-(1)-ol-(3) thus obtained with a further mol. of aldehyde in a Grignard reaction.  Chlorination or bromination with the accompanying allyl rearrangement may be effected with concentrated aqueous hydrochloric acid or with concentrated aqueous hydrobromic acid.  The chlorine or bromine atoms may be replaced by hydroxyl groups by treatment with aqueous silver oxide or by treatment with the alkali metal salt of an alkanoic acid and hydrolysis of the diacyloxy compound thus produced. Hydrogenation is effected in the presence of a palladium/calcium carbonate catalyst. The monocis-4,4-dihydroxy compound may be isomerised by heating to the all-trans compound.  The process is exemplified in detail with particular reference to the preparation of 4,41-diacetoxy-15,151 - dehydro - b  - carotene, 15,151 - monocis - 4,41 - diacetoxy - b  - carotene and alltrans - 4,41 - diacetoxy - b  - carotene. Specifications 786,003, 790,615 and 790,616 are referred to.
Patent GB-1415752-A (GB)
Title: Membrane on a hollow cord
IPC: B01D69/10
Filed: 1973-08-01
Abstract: 1415752 Semi-permeable membrane apparatus; coated membranes RHONE-POULENC SA 1 Aug 1973 [1 Aug 1972] 36621/73 Headings B1X and B2E A flexible semi-permeable tubular assembly consists essentially of a hollow cord which carries on its external surface a semi-permeable membrane, said cord being composed of textile yarns, the external surface of the cord being compressed and smoothed, the internal surface of the cord defining an axial channel which communicates with the exterior of the membrane. The cord may be of polypropylene yarns; it may be smoothed by passage through a cylindrical tube and subsequently coated or impregnated with a phenolformaldehyde, epoxy or polyester resin. The membrane may be formed from a solution of cellulose acetate. The cord may be used in the desalination of waiter.
Patent GB-322111-A (GB)
Title: Improvements connected with dental articulators
IPC: A61C11/02
Filed: 1928-12-13
Abstract: 322,111. Birmingham Dental Supply & Manufacturing Co., Ltd., and Nichols, J. Dec. 13, 1928. Teeth, artificial.-In a dental articulator of the kind wherein the pivotal joint between the two members is constructed so that the parts may readily be taken apart, slots 6 are formed communicating with the bore 5 in the cheeks 4 of one part of the knuckle joint, and flats 9 are formed on the pivot pin 7 on the other member of the joint. The parts may be separated when the flats. 9 are in alignment with the slots 6.
Patent GB-1524815-A (GB)
Title: Heat exchangers
IPC: F22B1/06
Filed: 1974-08-23
Abstract: 1524815 Heat exchangers; steam generation BABCOCK & WILCOX Ltd 26 Aug 1975 [23 Aug 1974] 37165/74 Headings F4S and F4A A vertically orientated shell and tube heat exchanger, e.g. utilizing liquid sodium to heat water for steam, prevents stagnation in the body of heating fluid below the level of lateral outlets 2 from or inlets to the vessel by the provision of a cylindrical screen 21 surrounding a bundle of tubes 5 which is spaced by supports 24 from the lower tube plate 7 to allow convective flow of a portion of the heatng fluid upwardly through an annular passage 43 defined between the screen 21 and shell wall 6 to the level of the inlet or outlet 2. Flow of heating fluid may be either upwardly or downwardly through the exchanger, the fluid passing through apertures 28 in the screen about the tubes for eventual discharge and the fluid to be heated passes to an upper header chamber not shown, from a lower header chamber 10 and inlet (33). In a modification the heating fluid may be passed into the apertures in the screen via an annular chamber surrounding the screen from a venturi nozzle having apertures in the throat to induce heating fluid from the stagnant zone.
Patent GB-626680-A (GB)
Title: Improvements in or relating to electric discharge tubes
IPC: H01J19/42
Filed: 1946-12-18
Abstract: 626,680. Thermionic valves. PHILIPS LAMPS, Ltd. Dec. 18, 1946, No. 37259. Convention date, Sept. 10, 1943. [Class 39 (i)] In an electric discharge tube containing at least two grids, the wires of one grid lying directly behind those of the other grid in the direction cathode-anode, the grids 2, 3 are spaced by a template 8 of insulating material with shallow and deep inclined notches 9, 10. The template material may be steatite, magnesium oxide or mica and may have more than two types of slot so as to receive more than two aligned grids. Reference is made to grids mounted on ceramic strips-with small and large notches which are not inclined so that the grid wires do not lie one behind the other. The Specification as open to inspection under Sect. 91 also describes a template with slots in opposed edges so as to space the grid wires. The subject-matter does not appear in the Specification as accepted.
Patent GB-848294-A (GB)
Title: Electrical snap-switches
IPC: H01H13/28
Filed: 1958-11-19
Abstract: 848,294. Snap-action switches; press-button retractive switches. SCHRACK, E. Nov. 19 1958 [Nov. 19, 1957], No. 37280/58. Class 38 (5). A switch comprises a main snap mechanism A working in conjunction with an auxiliary snap mechanism B adjustable to provide the switch with either one or two stable positions. Mechanism A is formed by a tip-lever 5 controlled by a spring 7 and pivoted at one end on a forked bracket, the other end carrying a bifurcated contact 6 movable between normally-fixed contacts 3, 3<SP>1</SP>, adjustable in terminal blocks 2, 2<SP>1</SP>. The spring- end 7<SP>1</SP> engages the thread of a longitudinallyfixed bolt 8, so that rotation of the latter moves the end 7<SP>1</SP> laterally to vary the contact pressures between contacts 6 and the respective contacts 3, 3<SP>1</SP>. Mechanism B comprises a pivoted tiplever 9 controlled by a spring 10, whose end 10<SP>11</SP> is laterally adjustable by rotation of a longitudinally-fixed bolt 11 and whose lower half is enclosed by a rigid sleeve 12 engageable by push-rods 13, 14. Depression of the rod 13 moves lever 9 anti-clockwise to strike the left side of the bifurcated contact 6 and so move mechanism A past dead-centre, whereupon both mechanisms act together to complete the switch operation, which can then be reversed by depression of the rod 14. If desired the spring-end 1011 may be moved to the right to prevent mechanism B from passing dead-centre during the switch operation, which in this case is reversed by the removal of pressure from the rod 13.
Patent GB-343219-A (GB)
Title: Improvements in and relating to filters or strainers for petrol or other liquids
IPC: B01D35/02
Filed: 1929-12-05
Abstract: 343,219. Filters or strainers. FENN, A. G., 71, Bolingbroke Grove, Battersea, and ANGLO-AMERICAN OIL CO., Ltd., 36, Queen Anne's Gate, both in London. Dec. 5, 1929, No. 37283. [Class 46.] Apparatus which may be applied to the pipe through which petrol passes from a service pump, consists of a casing, comprising two readily connected parts and containing two perforated conical members on the interior and exterior of which respectively filtering or straining material, such as gauze, is supported. As shown in Fig. 3, the parts 1, 2 of the casing are semielliptical in cross section. and their rims are recessed to receive the flanges of perforated conical members 10, 11, which support wire gauze on their external and internal surfaces respectively. The liquid is thus strained twice as it passes from an inlet 17 to an outlet 18. The parts of the casing are held together by an endless band 3 which is received in a channel 4 on one end of the casing and tightened by means of a screwed pin 5 and nut 7 at the other. As shown in Fig. 5, the parts 10, 11 are not flanged, but their edges are caused to bear against a ring 30, which is clamped between the two parts of the casing, by means of screws 23, 24, which engage nuts 25, 26 connected by a helical spring 27. In the modification shown in Fig. 6, the two parts of the casing are held together by a central bolt 33 and the members 10, 11 are held in position by springs 34. The members 10, 11 may support more than one layer of filtering material. One of the layers may be of chamois leather.
Patent GB-323898-A (GB)
Title: Improvements in lantern slides
IPC: G03B21/64
Filed: 1928-12-18
Abstract: 323,898. Price, E. S. Dec. 18, 1928. Drawings to Specification. Lantern slides. - The slide is constructed of transparent flexible material e.g. celluloid, and has a stiffening of paper, cardboard or fabric attached at the edges by glueing or stitching. The stiffening may be in strips along two or more edges, or in the form of an open frame. Specification 14094/99 is referred to.
Patent GB-1016609-A (GB)
Title: Process for the production of aluminium
IPC: C22B21/00
Filed: 1962-10-05
Abstract: Aluminium is produced by heating an alkyl-aluminium compound of the form (R1R2CH-CH2)2AlX (wherein R1 and R2 are alkyl radicals or hydrogen atoms and X is a hydrogen atom or an R1R2-CH-CH2-radical) and/or a complex compound thereof to effect decomposition to give aluminium, hydrogen and olefine at a decomposition rate of more than 0.5 mol. per cent per minute based on the decomposable material present in the heating zone.  The complexing agent may be an alkali metal compound, an ether, an amine or a quaternary ammonium salt. The process may be carried out in batches or continuously.
Patent GB-1277948-A (GB)
Title: Improvements in or relating to fuel injection systems for internal combustion engines
IPC: F02M51/02
Filed: 1969-07-30
Abstract: 1277948 Regulating I C engine fuel supply ROBERT BOSCH GmbH 30 July 1969 [31 July 1968] 38204/69 Heading F1B In an inlet-manifold fuel-injection system for an I. C. engine having electronic control of at least one injection valve which meters the quantity of fuel required per operating cycle, a solenoidoperated auxiliary injection valve extends into the inlet manifold to provide additional fuel during starting, the fuel supply for the auxiliary valve being taken from the supply line for the main injection valve. The auxiliary valve is mounted on the inlet manifold by means of a flange 23, with the nozzle body 31 extending into the inlet manifold. A solenoid 10 moves an armature 11 to allow a plastics plate 14 to be lifted from an annular seat 26 by the fuel pressure. Fuel then passes around the armature 11, via plane surfaces 13 or longitudinal grooves on the armature or longitudinal ribs on the bore, and thence via bores 18, 19 in a magnetic core 17 to the exterior of the nozzle body 31. The fuel then flows into a cavity 21 via tangential bores 22 which impart whirl and, finely atomized, emerges from a nozzle 20. The auxiliary valve is kept open during the starting operation, and its closing may be delayed for a period after the starting operation by a delay switch or by a capacitor in parallel with the solenoid. Additionally, cavities such as the space 30 and bore 19 act as a fuel reservoir to permit the supply of fuel to continue for a period after the valve has closed. The auxiliary valve may be opened intermittently during the starting operation by applying electrical pulses.
Patent GB-869930-A (GB)
Title: Improvements in electrical junction boxes
Inventor: TAGG CHARLES STANLEY
IPC: H02G15/08
Filed: 1956-12-15
Abstract: 869,930. Junction boxes. TAGG Ltd., C. STANLEY. Dec. 13, 1957 [Dec. 15, 1956] No. 38335/56. Class 38 (1). A junction-box, primarily a loop-in box having a pair of underneath cable entries 2, 3 and a top conduit outlet 4 is provided, beneath the outlet 4, with inclined baffles 7, 8 which extend from opposite sides of the box in spaced overlapping relation and provide a tortuous through passageway for conductors and inclined drainage paths for moisture to an outlet 14 in the side of the box.
Patent GB-887298-A (GB)
Title: Radio frequency peak power detector
Inventor: HOVDA ROBERT EUGENE
IPC: H03D9/02
Filed: 1960-11-08
Abstract: 887,298. High-frequency power measurement. NORTH AMERICAN AVIATION Inc. Nov. 8, 1960, No. 38380/60. Class 37. [Also in Groups XL (b) and XL (c)] An R.F. peak power detector comprises a waveguide section 15, a vacuum tube 12  mounted at least partially within said waveguide section, and means incorporated in the waveguide to make the output of the vacuum tube linear over a band of frequencies. Chokes being cavities 47, 49 in the walls of the support 18 for the diode 12 prevent energy from the waveguide entering the support portions. A resistance card 53, with resonant slot 54, is mounted in guide 15 a quarter-wave from the centre of diode 12. A circular portion 57 of guide 15, has an iris 59 connecting the guide to the output of the R.F. source to be measured, at a half-wave from the centre of the diode. The resistance card is so positioned and dimensioned as to give a substantially linear response in conjunction with the attenuation introduced by iris 59. The total attenuation is about 3 db. over the entire band.
Patent GB-814382-A (GB)
Title: Drying cabinets
Inventor: CARNE JOHN BRITTON
IPC: D06F58/10
Filed: 1956-10-24
Abstract: 814,382. Drying cabinets. GAS COUNCIL. Oct. 24, 1956, No. 38426/57. Divided out of 814,381 [Group X]. Class 34(1) A domestic drying cabinet is connected by air inlet and outlet ducts 19, 20 respectively with a flue, e.g. as described in Specification 814,381, the flow of air through the ducts being controlled 'by valves 17, 18 operated by linkage 16 connected to the door 15 of the cab-  inet. When the door is opened the linkage closes the valves.
Patent GB-344948-A (GB)
Title: Improvements in electromagnetic rectifiers and the like
IPC: H02M7/36
Filed: 1929-12-16
Abstract: 344,948. Commutator switching- arrangements. ROSENKILDE, E., 15, Norregade, Copenhagen, and ROSENKILDE, H., 381, Gl. Mosevej, Bagsvoerd, Denmark. Dec. 16, 1929, No. 38478. [Class 38 (ii).] In a vibrating rectifier as shown in Fig. 1 the armature h carried by a spring blade g vibrates in a lateral gap i, Fig. 2, formed in a closed iron core a the armature being polarized by a permanent magnet l so that it vibrates in accordance with the alternations of an A.C. supply fed to a primary winding a. Secondary windings c, c<1> are also mounted on the core a one end of each being connected to the positive output terminal k the other end of the windings passing to fixed contacts e, e at the sides of the spring g. Thus the vibration of the armature connects the windings c, c<1> alternately to the negative output terminal k so that unidirectional current impulses are produced in the output circuit. If single wave rectification is to be produced one of the terminals e and one of the secondary windings are omitted. To restrain natural vibrations and other undesirable mechanical vibrations of the armature, a resistant body (not shown) such as a rubber cushion is arranged with its surface parallel to the direction of motion of the armature so as to be in continuous frictional engagement with one or more sides or edges thereof.
Patent GB-1510528-A (GB)
Title: Laundry installation comprising a fully automatic washing machine and a clothes drier
IPC: D06F58/24
Filed: 1975-09-19
Abstract: 1510528 Washing machines BOSCH-SIEMENS HAUSGERATE GmbH 19 Sept 1975 [20 Oct 1974] 38654/75 Heading D1A A laundry installation comprises a storage container 3 receiving rinsing water discharged from a fully automatic washing machine 1 and supplying it as coolant to a condenser 21 for condensing moisture in drying air exhausted from a clothes drier 2. Hot, dirty, soapy rinsing water is pumped by pump 4 to drain 402. Valve 40 is operated by control device 13 e.g. after the second rinsing step to route cool clean rinsing water to container 3. Water from container 3 passes via valve 51 and condenser 21 to drain 402 or via valve 53 for use as washing or rinsing water for the next washing programme. In Figure 3 (not shown) pumps 4, (41) are controlled thermostatically and/or electrically as a function of temperature and/or degree of contamination of the rinsing water, to pass the water either to container 3 or drain 402. In Figures 4, 5 (not shown) the flow rate of pump (42) is controllable and valve (426) thermostatically and/or electrically controllable as a function of temperature and/or degree of contamination of the water. In Figure 6 (not shown) valve (426) is controlled by switch (430) sensing the pressure in riser line (424). In Figure 7 (not shown) a thermostat (215) at the drain of condenser 21 operates device (217) so that when the water is cool it is routed to container 3 and when hot to drain 402.
Patent GB-1559319-A (GB)
Title: Unsaturated polyester resin binders
IPC: C09D11/101
Filed: 1976-09-20
Abstract: Unsaturated polyesters made from A) at least one  alpha , beta -monoolefinically unsaturated dicarboxylic acid and/or polycarboxylic acid which is free from polymerizable aliphatic multiple bonds, B) at least one polyhydric alcohol, C) at least one co-condensable acrylic compound and D) at least one polycyclic compound which has a norbornane structure and is bonded via a functional group in the series consisting of carboxyl, hydroxyl and primary amino groups or via a majority of only similar functional groups from this series, are employed as binders in binder systems for the production of radiation-curable coatings, adhesives, knifing fillers or preferably printing inks. The printing inks produced using the binders have a good shelf life and a high curing rate on irradiation, which gives, for example, drying rates of greater than 400 m/min, the prints produced having high gloss and colour density (ink density, saturation). The unsaturated polyesters are prepared by reacting components A), B) and D) with one another in a first step, giving a polyester resin containing hydroxyl groups or carboxyl groups, and then reacting the functional groups thereof with component C), co-condensible acrylic compounds, in a second step.
Patent GB-1342128-A (GB)
Title: Circuit board
IPC: H05K7/10
Filed: 1971-08-20
Abstract: 1342128 Plug boards A FISCHER 20 Aug 1971 [27 Aug 1970] 39191/71 Heading H2E [Also in Division H1] A circuit board 1 of insulating material, e.g. for use in experimental, hobby or toy circuit building sets is formed with a plurality of recesses 2 defining terminal positions 3 each provided with a plurality of spring metal contacts 5 connected together by a common base 6, the arrangement being such that the lead of a component can be inserted between any one of the metal contacts and the wall of the recess. A cover-plate 11 is provided having holes 10 aligned with the spring metal contacts, the holes and the top edge of the recesses being so shaped as to facilitate the correct insertion of the leads. Preferably four contacts are housed in each recess and at least one recess is provided with connecting means 14 extending from the opposite face of the board for making a connection to a power supply. The circuit boards may be provided with groove and tenon type connection means for assembling a pluraliting of boards into an integral unit (Fig. 3, not shown). Preferably the contacts are formed by a punching and up-ending operation from a rectangular sheet of metal.
Patent GB-1072035-A (GB)
Title: Improvements in and relating to hair curlers
IPC: A45D2/14
Filed: 1964-09-28
Abstract: 1,072,035. Hair curlers. PERMA. Sept. 28, 1964 [Sept. 27, 1963], No. 39502/64. Heading A4V. A hair curler comprises a tube of metal or plastics on which a tress of hair is wound the outer surface of the tube being covered with a pile e.g. of 15 denier nylon filaments one millimetre long cemented to the surface by a flocking process. In a modification the wall of the tube is apertured. The curlers may be made by cutting transversely a flocked, long tube.
Patent GB-1302494-A (GB)
IPC: C07D221/08
Filed: 1971-08-24
Abstract: 1302494 Cycloalkano-quinoline derivatives BOEHRINGER MANNHEIM GmbH 24 Aug 1971 [4 Sept 1970] 39581/71 Addition to 1210638 Heading C2C Novel cycloalkano-quinoline derivatives of the formula wherein one of the symbols R<SP>1</SP> 1 and R<SP>1</SP> 2 is H, while the other one, together with R<SP>1</SP> 3 forms a C 3-5 aliphatic bridge, and X<SP>1</SP>is C 1-3  alkyl substituted by halogen, OH, acyloxy, alkoxy, aryloxy, aralkoxy, SH, arylthio, alkylthio, alkylsulphonyl or arylsulphonyl and the pharmacologically acceptable salts thereof are prepared by reaction cycloalkano-quinoline derivatives of the formula wherein Y<SP>1</SP>is OH or alkoxy with compounds of the formula X<SP>1</SP>Z,where Z is a reactive radical, such as halogen, if necessary, hydrolysing the resulting esters, and, if desired, a substituent in the group X<SP>1</SP>is chemically converted by known methods. Pharmaceutical compositions, suitable for enteral or parenteral administration, contain the above novel compounds or salts thereof in admixture with solid or liquid pharmaceutical diluents or carriers. The compounds possess anti-microbial activity.
Patent GB-817949-A (GB)
Title: Apparatus for receiving and stacking bags
IPC: B65H29/46
Filed: 1957-12-20
Abstract: 817,949. Sheet delivery apparatus. GENT, M. L. VAN DE. Dec, 20, 1957 [Dec. 21, 1956], No. 39636/57. Class 100(1) Apparatus for receiving and stacking flexible bags comprises two sets of laterally spaced belts forming endless conveyers, each set comprising two belts 12, 14, running over pulleys 13 and 15 respectively, and which are adapted to convey the bag over a receiver 11, and a vertically reciprocating pusher 18 located above the receiver 11, the bags passing in succession under the pusher 18 which frees them from the belts 12, 14 and stacks them in the receiver 11. The entry to the conveyer means is adjacent the exit of a bag welding and cutting machine which makes the bags from a length of flat tubular material 3. The bags are conveyed by the conveyer by their longitudinal edges and the pusher 18 is reciprocated by linkage 21, 22 which co-operates with a cam on the main shaft of the welding machine. The lower run of the conveyer comprising the belts 12 extends rearwardly of the upper run comprising the belts 14. To assist guidance of the bags until they reach the nip of the conveyer runs an upper guide 17 and a belt 16, located between the belts 12, are provided.