baber/WOPTO huggingface dataset:
Patent GB-643162-A (GB)
Title: Coupling arrangements for use in wave transmission systems
IPC: H01P5/16
Filed: 1947-07-04
Abstract: 643,162. High - frequency transmission. WESTERN ELECTRIC CO., Inc. July 4, 1947, No. 17682. Convention date, Dec. 31, 1942. [Class 40 (iv)] [Also in Group XL (b)] A coupling arrangement for electrical wave transmission systems comprises a single closed loop of wave-guide to which four connections, each either a wave-guide or a coaxial line, are so connected as to provide electrical balance between certain of the circuits and electrical unbalance between others. In the arrangement shown the loop is one-and-a-half wavelengths long (1¢#). Four lines 1, 2, 3 and 4 are connected to the ring with spacings #/4 between each adjacent pair. A generator in branch 2 will transmit equally divided power to equal loads in branches 1 and 3 whereas branch 4 will receive no power. If the coupling arrangement is used in a duplex system the other generator will be in branch 1. It can also be calculated that if the impedances are as shown on the drawings impedance matching is accomplished whether the arrangement is driven from branch 1 or branch 2. In this arrangement all the branch guides make series connections with the loop. Similar arrangements can be produced by substituting shunt connections for any or all of the series connections. Alteration of the length of the loop is sometimes then required to maintain the matching quality. By a certain amount of reactance tuning in the branches balancing can be obtained over a broad band without excessive mismatch. The arrangement functions in a manner somewhat similar to hydrid coil in conventional telephone practice and can be used in the construction of a duplex transmission system, a duplex repeater or three arrangements can be combined to form a multiple duplex balancer. Specifications 491,359 and 643,163, [Group XL (b)], are 'referred to. The Specification as open to inspection under Sect. 91 comprises also constructions in which the wave-guide loop is replaced by a loop of coaxial line or Lecher pair. This subjectmatter does not appear in the Specification as accepted.
Patent GB-477350-A (GB)
Title: Improvements in or relating to ventilating apparatus
IPC: A01G9/24
Filed: 1936-06-25
Abstract: 477,350. Fan apparatus. SOC. NESSI FRERES ET CIE, and MASSIN, J. June 25, 1936, No. 17729. [Class 110 (i)] A ventilating-fan is driven by two or more motors or other power units, a freewheel being disposed in the transmission from each unit to obviate turning of the power unit not in use. A fan 1 is driven by a belt 5 from a pulley 3 on a shaft 2 which is driven by a belt 17 and pulley 15 from an electromotor 13, a freewheel clutch being inserted between the pulley 15 and the shaft. The shaft 2 is capable of being driven in an emergency by pedals 8 and a chain 12 through another freewheel clutch.
Patent GB-515899-A (GB)
Title: Improvements in and relating to sliding drawers
IPC: A47B88/493
Filed: 1938-06-14
Abstract: 515,899. Drawer runners. BUSSCHAERT, A. L. June 14, 1938, No. 17732. [Class 52 (i)] Drawer supports 5, 6 slide on front and central rollers 11, 10 on intermediate slides 3, 4 which run on guides 1, 2 on the drawer casing additional support when the drawer is withdrawn beyond the central rollers. 10 being provided by auxiliary rollers 15. The supports 5, 6 are pressed downwardly by spring-presssed rollers 16 in cages on the intermediate slides which latter are also preferably fitted with rear rollers 12, 14. The intermediate slides carry gravity catches 21 to limit their movement between abutments on the guides 1, 2 and these latter have depressions at the inner limiting positions of the rollers 10, 14.
Patent GB-474592-A (GB)
Title: Improvements in or relating to boxes and like containers
IPC: B65D5/54
Filed: 1936-10-20
Abstract: 474,592. Folding boxes. ROBINSON, Ltd., E. S. & A., ROBINSON, H. G., and COOPER, A. B. Oct. 20, 1936, No. 17761/37. Divided out of 473,018. [Classes 18 and 66] A box &c. made from a one piece blank which can be collapsed into a flat tube before the ends are sealed comprises a cover a, base b, rear side c and front side d, a front extension a<1> having a row r of perforations and extension flaps 34, which are secured to extensions 33 of the cover so that when the cover is separated along the line r a flanged cover is formed. Flaps 32, 31, 30 are folded inwards in the order named and flaps 33, 34 overlie these. Specification 459,734 is referred to.
Patent GB-199261-A (GB)
Title: Ruler blotter
IPC: B43L7/00
Filed: 1922-06-28
Abstract: 199,261. Shatz, B. June 28, 1922. Blotting-appliances. - In a combined blotter and ruler, the blotter is secured by adhesive to a member detachably mounted on the ruler. The blotter 6, Fig. 4, is stuck to a strip 7 of cloth having the ends folded over the ruler 1 and secured by spring plates 8 entering grooves 4. The blotter 6, Fig. 8, is stuck to a rigid strip 7 of wood &c., and the ruler 1 is provided with ears 9 forming a channel for receiving the strip.
Patent GB-586332-A (GB)
Title: Means for measuring the quantity of a fluid passing through a conduit
IPC: G01F1/115
Filed: 1944-09-19
Abstract: 586,332. Rotary meters. BILLMAN, S. K. M. Sept. 19, 1944, No. 17861. Convention date, Oct. 19, 1943. [Class 110 (ii)] [Also in Group XXXVIII] In a system for measuring the rate of flow of liquid in a conduit by means of a turbinedriven electric generator, the rotor of the generator is mechanically connected with the short-circuited rotor of an induction motor fed with constant A.C. in order to obtain a voltage output proportional to the liquid velocity. The phase lag of the induction motor substantially reduces the various resistance forces acting on the rotating system and allows rotation to start at a lower liquid velocity, while above a certain velocity the induction motor exerts an increasing braking effect. As shown, a tube 4 supported on a shaft 12 carries at one end the rotor 5 of the induction motor 6 while a reduced part 7 at the other end has the rotor 8 of the generator 9 adjustably clamped thereto. Two sets of blades 10, 11 of the turbine are carried respectively by the rotor 8 and the tube 4, so that their total length may be varied by adjustment of the rotor 8. The shaft 12 is mounted in bearings 13, 14 carried by webs 15, 16, that in advance of the turbine being formed with guide vanes. The stator of the induction motor is displaced relatively to the rotor 5 in order to produce a thrust thereon counteracting the bearing thrust of the shaft. The measurements obtained may be combined with temperature measurements for determining the heat consumed in a water heating system.
Patent GB-599207-A (GB)
Title: Improvements in or relating to rotary valves and combustion chambers of internal combustion engines
IPC: F01L7/02
Filed: 1945-07-13
Abstract: 599,207. Rotary valves. BROOK, A. T. July 13, 1945, No. 17881. [Classes 7 (ii) and 7 (vi)] A rotary valve comprises a hollow cylindrical or conical member 3 having cells 6A, 6B, 6C which act as inlet and exhaust passages and are in turn in communication with the cylinder at the moment of ignition. In a two-stroke engine a pre-compressed fuel-air charge enters a cell through the passage 7 and is then carried round until it reaches the position 6A when it is ignited by the spark-plug 9 and the working stroke commences. On the return stroke the cell connects the cylinder 10 to the exhaust passage 8 which is closed before top dead centre, leaving some gas trapped in the cylinder to cushion the shock of the succeeding explosion. In a four-stroke engine the passage 7 is replaced by an inlet passage suitably disposed to be connected to the cylinder by the cells. Efficient sealing of the cells is maintained by strips 12 and transverse piston rings, and cooling oil - flows through the hollow interior of the valve, some escaping through small holes for lubricating. The valve is supported in roller bearings which may be provided between every two cylinders in multi-cylinder engines. For a compression-ignition engine, compressed air alone enters through the passage 7 and a fuel injector replaces the sparking plug.
Patent GB-488966-A (GB)
Title: Process for the isomerisation and dismutation of hydroxy-keto-compounds having a cyclopentano-polyhydro-phenanthrene skeleton
IPC: C07J75/00
Filed: 1937-06-26
Abstract: 3-Hydroxy-17-keto compounds of the cyclopentano-polyhydrophenanthrene series are subjected to the action of metal alcoholates in a solvent which contains neither hydroxylic nor keto groups.  The treatment results in the isomerization of the starting materials to obtain the corresponding 3-keto-17-hydroxy compounds and also results in the formation of equimolecular amounts of the corresponding 3 : 17-dihydroxy-, and 3 : 17-diketo-compounds.  The preferred solvents mentioned are gasoline, benzene, and cyclohexane.  Metal alcoholates mentioned include sodium ethylate, aluminium isopropylate, chloromagnesium - triphenylcarbinolate, and aluminium trimethylcarbinolate.  If the desired end product is the 3-keto-17-hydroxy compound, the reaction solution containing diols and diones may be separated from the keto-hydroxy compound again treated with metal alcoholate, to yield a further quantity of 3 - keto - 17 - hydroxy compound.  The transformations of the present invention may be carried out either on pure compounds or on urine extracts.  In examples: (1) dehydroandrosterone is refluxed with tertiary aluminium butylate in benzene solution; (2) a urine extract having an activity of one capon unit per mg. is refluxed with tertiary aluminium amylate in toluene solution.  The Specification as open to inspection under Sect. 91 comprises also the treatment by the process of the present invention of any hydroxyketo compound of the cyclopentanopolyhydrophenanthrene series, and contains an additional example in which D 5-pregnenol-3-one-20 is treated with tertiary aluminium butylate to give D 4-pregnenol-20-one-3, D 5-pregnendiol-3 : 20 and D 5 - pregnendione - 3 : 20.  This subject-matter does not appear in the Specification as accepted.
Patent GB-468767-A (GB)
Title: Improvements in or relating to pianofortes
IPC: G10C3/16
Filed: 1936-01-03
Abstract: 468,767. Pianofortes. CHALLEN & SON, Ltd., C. H., and EVANS, W. Jan. 3, 1936, No. 17909. Divided out of 456,199. [Class 88 (ii)] Adjustable links 18, connecting the keys 10 to the sub-key levers 26 in a piano, have a tongue-and-fork hinge-pin connection 13 at their ends, with the keys and levers. The keys 10 are pivoted intermediate their ends at 27. The links have left- and right-hand threaded engagement in end-sockets 15, 21, or the threads at one end may be omitted, the links being freely rotatable in the corresponding sockets. Flats 23 are provided in the links to facilitate turning them for adjustment. The hinge-pins 13 may be bushed in resilient felt in the tongues or forks to allow sideways movement or inclination of the links. Specification 456,199 is referred to.
Patent GB-1186831-A (GB)
Title: Improvements relating to Tackifying Cement
IPC: C09J123/16
Filed: 1968-04-16
Abstract: 1,186,831. Tackifying cement. UNIROYAL Inc. 16 April, 1968 [3 May, 1967 (3)], No. 17930/68. Heading C3P. A tackifying cement comprises a pentaerythritol ester of a hydrogenated rosin, a sulphur vulcanizable terpolymer rubber based on two different alpha olefins and a copolymerizable polyene, and an organic solvent for the ester and rubber. The terpolymer is preferably based on ethylene, propylene and dicyclopentadiene. The cement may contain a resin which is a reaction product of (1) a phenol or alkyl-substituted phenol having at least one ortho or para position unsubstituted, (2) a terpene, or (3) a mono or polycyolic hydrocarbon having at least two non-conjugated double bonds, reactants (2) and (3) being different. The cement may further contain a thermoplastic para-alkylated phenol-formaldehyde resin in which the alkyl group has from 4 to 8 carbon atoms, and the resin has a ball and ring softening point in the range from 70 to 110 C. The terpolymer rubber which may be fully compounded for sulphur vulcanization, may also be compounded with an extender oil, and carbon black. In the examples, a cement is formed by dissolving in cyclohexane a pentaerythritol ester of a hydrogenated rosin and a tyre tread stock compounded from an ethylene-propylene-dicyclopentadiene (or ethylidene norbornene or methylene norbornene) terpolymer incorporating an extender oil and carbon black. In further examples this cement contains a resin formed by reacting phenol in xylene and in the presence of a Friedel Crafts catalyst (i.e. BF 3 ) with dicyclopentadiene and either α-limonene or a mixture of α- and #-pinene. In a further example, a high boiling point solvent such as tetralin or acetophenone may be incorporated, and further, a p-octyl phenol formaldehyde novolac resin may be incorporated.
Patent GB-579024-A (GB)
Title: Improvements in travel cases
IPC: A45C3/00
Filed: 1944-09-20
Abstract: 579,024. Collapsable cases. GARNETT, Ltd., A. J., GARNETT, A. T., and LANGFORD, E. E. Sept. 20, 1944, No. 17933. [Class 133] In each half of a collapsable travel case, two flaps 8 hinged to strips 9, secured at the junction of the walls 4, 5 with the outer wall 7, distend the case when raised and folded across and may be secured by tabs 11 with fasteners 12. Handles 15 secured to straps 14 extending round each half and sliding clasp fasteners 17 for securing the latter when folded together are provided. A flap 18 covers the junction and the fasteners at the top and is secured by hasps 19 engaging locks 20. The walls are stiffened with, e.g., fibre board and triangular pieces are cut away at the corners and suitable crease lines are formed to assist in correct folding. Protective pieces 13 are provided for the corners. In a modification (Fig. 4, not shown), the flaps 8 are hinged to strips 9 which are secured at the junction of the walls 6 with the outer wall 7.
Patent GB-1195945-A (GB)
Title: Feeder for Auger-Type Extruder.
IPC: B29C48/03
Filed: 1968-04-16
Abstract: 1,195,945. Extruding plastics. MIDLANDROSS CORP. 16 April, 1968 [14 April, 1967], No. 17937/68. Heading B8A. Plastic material in hopper 11 is stirred by stirrer 23 and discharged to extruder screw 21 by screw 14 driven by motor 16. The screw 14 is formed with a wider upper portion and a narrower lower portion and the hopper 11 is formed with ridges 31 to prevent rotation of material. In this way excess material from the screw rises into the hopper, and overloading of the screw is prevented.
Patent GB-544988-A (GB)
Title: Telegraph printer
IPC: H04L17/24
Filed: 1940-12-20
Abstract: 544,988. Clutches for conveying rotary motion. CREED & CO., Ltd. (Western Union Telegraph Co.). Dec. 20, 1940, No. 17947. [Class 80 (ii)] [Also in Groups XL and XVI] In driving arrangements for a printing telegraph receiver a main shaft 26, Fig. 2, drives (1) through gears 23, 27 and a friction clutch 67 the shaft 29 carrying the cams 79 for operating latches 117, and (2) through a ratchet clutch 46 a sleeve 42 carrying cams 57-62 controlling printing, tape-feed, the operation of the transfer members, and the re-setting of the selector and transfer members. A friction clutch 67, Fig. 2, comprises a driving collar 28 having pins 72 engaging radial slots in segmental members 73 pressed by a coiled spring 74 against a felt sleeve 76 so as to drive a collar 77 rotatable with the shaft 29 when the latter is released. A ratchet clutch comprises a ratchet 47, Figs. 2 and 8, rigid with the driving shaft 26, and a recessed member 48 (rigid with the driven sleeve 42) carrying a dog 49 pivoted at 51 and pressed into engagement with the ratchet by a spring 52 when released by a trip lever 54, which again engages the dog so as to arrest the sleeve 42 after one revolution.
Patent GB-1416375-A (GB)
Title: Nickel-chromium alloys and castings thereof
IPC: C22C19/05
Filed: 1973-04-13
Abstract: 1416375 Nickel based alloys INTERNATIONAL NICKEL Ltd 11 April 1974 [13 April 1973] 17951/73 Heading C7A A cast alloy comprises in weight per cent. where the sum 5[Nb +Ta/2] + 6 [Ti + Al)+ 2/3 Cr = 54.5 to 61.3, the balance being nickel apart from impurities. The alloys are particularly suited for blades and other components of gas turbine engines and other applications where good stress-rupture life at high temperatures in corrosive environments is required. The alloys may be heat treated at 1150C, followed by air cooling then further - treated at 850C, again followed by air cooling, for optimum properties.
Patent GB-643307-A (GB)
Title: Improvements in or relating to centrifugal pumps
IPC: F04D29/22
Filed: 1948-07-04
Abstract: 643,307. Centrifugal pumps; stuffing-box substitutes. HARRIS, C. S., and GOLD, B. July 5, 1948, No. 17978. [Classes 110(i) and 122(v)] The fluid passes to the centre of the impeller through a substantially tubular member which is end loaded by a coil 'spring which tends to increase the effective axial length of the member so that one of its end faces bears without clearance against a relatively rotating face to make a seal. Liquid enters the eye 22 of the impeller 10 of a centrifugal pump, Fig. 4, by way of a union 24. Leakage is prevented by two glands, each comprising a ring 38 of rubber or the like bonded to a tubular member 37 and to a ring 30 of carbon or the like. A spring 33 presses the ring 30 against a ring 31 of stainless steel or the like carried by the impeller 10, a ring 32 of rubber or the like being interposed. The member 37, which is of brass or phosphor bronze, seats against annular shoulders 25, 29. The impeller 10 is preferably formed by machining grooves in a back plate 11 to form channels 13, and then attaching a front plate 12. The sides of the channels converge in a radially outward direction. Fig. 2 shows a modified gland in which an extension of the rubber ring 28 is interposed between the tubular member 27 and the shoulders 25, 29. In a further modification, Fig. 5, each gland comprises a tubular bellows 44 of rubber or the like, provided at each end with annular flanges 44a which are pressed apart by a spring 45 so as to make contact with the end faces of an impeller hub flange 11a or 12a and of a flange 42a or 43a. Bearing surfaces for the shaft 20 and hub 11a are provided by the flange 42a and a flange 40b respectively.
Patent GB-439964-A (GB)
Title: Improvements in and relating to choke coils for electric circuits
IPC: H01F27/245
Filed: 1934-06-18
Abstract: 439,964. Inductances. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, and HOLBROOK, H. S., 7, Rugby Road, Paddox Delivery, Rugby. June 18, 1934, No. 18006. [Class 37] A choking-coil comprises a number of rectangular punch ings 1 having a gap 2 in one side, and a straight laminated member 3 passing through the gap into proximity with the other side, the coi being arranged about the straight member. With this construction, an air gap 6 is formed within the frame of the core, so that the choking-coil may be mounted in a casing of magnetic material without affecting its characteristics.
Patent GB-961932-A (GB)
Title: Improvements in or relating to heat insulating structures
IPC: E04B1/76
Filed: 1959-10-15
Abstract: 961,932. Seaming non-metallic sheet material. T. AMBRUS. Oct. 14, 1960 [Oct. 15, 1959], No. 18030/63. Divided out of 961,931. Heading B5K. A braking web, e.g. for connecting opposed panels of a thermally insulated structure as described in Specification 961,931, consists of a rigid plate of polymerized synthetic plastic material, the side edges of which are reinforced to take rivets &c. by internal metal plates 18, 19 moulded in situ. The plastic material may be reinforced by glass fibre cloth, asbestos fibre or nylon cords, the filaments extending diagonally across the web. The webs may be flanged to the form shown in Fig. 4 or 5. Specification 845,744 also is referred to.
Patent GB-586489-A (GB)
Title: Improvements in and relating to the purification of vinyl esters
Filed: 1944-09-25
Abstract: Vinyl esters are purified by continuously feeding the ester to a distillation column surmounting a boiler, subjecting the distillate to counter-current washing with water or an aqueous solution of a reagent which will combine chemically with the impurities, returning the washed ester to the column, and withdrawing purified ester from the boiler.  The process may be applied to purifying vinyl acetate of acetone, acetaldehyde and water, using an aqueous solution of sodium bisulphite as washing-agent.  Crude vinyl acetate is submitted to a preliminary distillation to remove relatively high boiling impurities, such as acetic acid and ethylidene diacetate, and is then fed through pipe 26 into column 7 at 8.  The vapours, leaving the head of the column, preheat the feed and then pass to condenser 12. The condensate is separated into two layers in decanter 13 and the ester layer is introduced into the base of the washing column 16 through a perforated disc 34.  The ester ascends this column, mixing with descending wash liquor which enters the column through spray 35, and is withdrawn from the top to a surge tank 21 from which it is pumped back, via heat exchanger 11, to distillation column 7. Purified ester collects in boiler 1 and is with <PICT:0586489/III/1> drawn at 30.  In an example, vinyl acetate containing 6.2 per cent. acetone and 6.1 per cent. acetaldehyde was fed to the distillation column at the rate of 30 volumes per hour.  The condensed distillate was fed to the washing column at the rate of 57 volumes per hour, while water was fed to this column at 100 volumes per hour.  Ester containing only 0.2 per cent. acetone and no acetaldehyde, was withdrawn from the boiler at 2.3 volumes per hour.  The distillation column may be modified to have a rectifying section above the point of entry of crude ester, and this section may be supplied with reflux from the decanter.  In another modification, the crude ester is introduced into the system at the base of the washing column.
Patent GB-599314-A (GB)
Title: Improvements in electric water heating installations
IPC: F24H1/10
Filed: 1945-07-17
Abstract: 599,314. Heating liquids by electricity. BRITISH THOMSON-HOUSTON CO., Ltd., CLOUGH, F. H., and NEWBOUND, R. July 17, 1945, Nos. 18272 and 29454. [Class 39 (iii)] A water heater comprises a closed tank 1 containing an electric heating element 2 and having inlet and outlets 3 and 16 respectively, the water being supplied from an auxiliary reservoir 6 having a float-operated valve 9, to maintain a predetermined water level in the tank, and a switch 14 responsive to a rise in level to break the heater circuit. The switch 14 is of the float-operated type. The tank 1 may be in the form of a jacket of greater volume at the bottom than at the top, surrounding an oven, which is provided with electric heaters, those in the jacket being enclosed in pockets attached to the wall. The heater may be included-in an installation having other heated ovens and compartments.
Patent GB-691450-A (GB)
Title: An improved seat for a child
IPC: A47D1/10
Filed: 1951-08-03
Abstract: 691,450. Children's chairs. WINCEY. G. C. H., and WINCEY, E. H. June 13, 1952 [Aug. 3, 1951], No. 18424/51. Class 52(ii) A seat which will permit a child to be seated comfortably at a table comprises a U-shaped metal frame A the ends of which are provided with clamps B having clamping screws D whereby the seat may be clamped to the edge of the table C. A canvas bucket-type seat K is provided and the clamps are preferably mounted rotatably on the metal frame to enable them to be turned into the plane of the frame for transport or packing purposes. Rubber sleeves G are provided on the upper arms of the clamps. Any other type of seating surface may be provided.