baber/WOPTO huggingface dataset:
Patent GB-1497368-A (GB)
Title: Air classification apparatus
IPC: B07B4/06
Filed: 1976-05-07
Abstract: 1497368 Screw conveyers RAYTHEON CO 7 May 1976 [22 May 1975] 18891/76 Heading B8A [Also in Division B2] A screw conveyer for feeding material through a duct (32) into a rotating drum (16), Figs. 1 and 3 (not shown) has a pipe 98 supported by bearings 103 within a hollow shaft 96 provided with a spiral flight 94. Air is introduced into the pipe 98 and escapes through apertures 102 and 104 in the pipe and shaft to fluidize the material being conveyed through the duct (32). The duct (32) extends from a hopper (10) movable along a base (38) to adjust the position of the end of the duct within the drum (16).
Patent GB-369826-A (GB)
Title: Improvements in or relating to the packing of materials into cans prior to sealing
IPC: B65B1/24
Filed: 1931-07-02
Abstract: 369,826. Filling cans. CONTINENTAL CAN CO., Inc., 100, East 42nd Street, New York, U.S.A.-(Assignees of Kronquest, A. L. ; 1016, East Water Street, Syracuse, New York, U.S.A.) July 2, 1931, No. 19040. Convention date, Dec. 5, 1930. [Class 94 (i).] A device for pressing down floating food products and the like in tins prior to sealing or covering comprises an endless belt 22 passing round pulleys 28a, 28b, arranged obliquely above the runway 4 on which the containers C are moved forwards by pushers 7 on a conveyer chain 6. The pulleys are mounted on a vertically adjustable frame 15 and the belt is driven from the main drive by a sprocket chain 31. Guide rollers 30 are mounted to engage the edges of the belt adjacent to the point of contact with the belts. The speed of the belt is approximately equal to the linear speed of the containers. After the contacts have been depressed, the containers pass beneath a plate 38 towards the closing apparatus.
Patent GB-706543-A (GB)
Title: Improvements in or relating to rotors for small electric motors
IPC: H02K1/02
Filed: 1952-07-28
Abstract: 706,543. Magnetic compositions, A.C. motors. SIEMENS-SCHUCKERTWERKE AKT.-GES. July 28, 1952 [Aug. 15, 1951], No, 19067/52. Classes 35 and 38 (2) Rotors suitable for small synchronous A.C. motors made by sintering, comprise a mixture of ferromagnetic and non-magnetic metals. Metal powders may be mixed in a mould, or a slightly compressed porous structure of the ferromagnetic powder may be impregnated with the non- magnetic metal. The proportion of non-magnetic metal may be higher at the periphery to act as a starting winding.
Patent GB-778015-A (GB)
Title: Improvements in circuits including transistors
IPC: G05F1/613
Filed: 1955-07-01
Abstract: 778,015. Automatic voltage control systems. WESTERN ELECTRIC CO., Inc. July 1, 1955 [July 7, 1954], No. 19086/55. Class 38 (4). In a circuit for stabilizing a D.C. load voltage, the resistance of a load shunt comprising cascaded transistors is correctively varied by controlling the first cascaded transistor in accordance with deviations of load voltage from a desired value. The load 18, across whose terminals 16, 17 a constant voltage is to be maintained, is supplied in series with a resistor 15 from a bridge rectifier 14 energized from an A.C. source and transformer 11, 10. A " floating " storage battery 19 is connected across the load terminals. A P-N-P transistor 20 has its emitter-collector path in shunt across the load and its base controlled by a second P-N-P transistor 21 with its emitter-collector path in series with resistors 23, 24 across the supply, the base of transistor 21 being in turn controlled by an N-P-N transistor 22 having its emittercollector path in series with resistors 24, 29, 28 across the supply. The base potential of transistor 22 is determined by the difference between a load voltage representative signal derived from a dividing network 30, 31, 32 connected across the load and a reference voltage across a P-N junction diode 33, the latter voltage being derived from a rectifier and smoothing circuit 35, 34, 36 energized from a transformer winding 13. In operation, a decrease in load voltage causes a reduction in the base current of transistor 22, corresponding reductions in the base currents of transistors 21, 22 and a reduction in the emitter current of transistor 20, whereby the effective resistance of the load shunt provided by the transistors is increased to restore the load voltage to the required value. The maximum load current for which the load voltage is maintained constant is determined by the minimum emitter current of transistor 20, a maximum control range being obtained by reducing this emitter current to zero. This is permitted at even comparatively high ambient temperatures by the connection of the resistive path 23, 24, whereby the base current of transistor 20 may be reversed, if the emitter current of transistor 21 is reduced sufficiently by reversal of its own base current. The latter is permitted by the connection of resistive path 29, 24 and the decrease of the collector current of transistor 22 resulting from an appropriate control signal applied to its base. The transistors may be of the opposite conductivity type with appropriate connections.
Patent GB-1188355-A (GB)
Title: Improvements in or relating to a Method and Apparatus for Assembling a Universal Joint
IPC: F16D3/40
Filed: 1967-04-27
Abstract: 1,188,355. Universal joints. NADELLA S.A., and A. PITNER. 27 April, 1967 [28 April, 1966; 21 Sept., 1966], No. 19342/67. Heading F2U. In a Hookes type universal joint accurate alignment of a spider and yoke is obtained during assembly by aligning the spider C and yoke M, spreading apart or urging together the yoke arm 5 with a predetermined force, then fixing needle bearing cups 1 in the bores of the yoke arms with a predetermined force so that on release of the arms the bearing cups exert a predetermined thrust on the ends of the spider arms. Means are provided for preventing the forces applied in fixing the bearing cups in the bores from acting on the yoke arms before their release and thus altering the thrust subsequently exerted by the cups. As shown the yoke and spider are aligned by a collar 3 having a bore receiving a stem of the yoke and faces 4a, 46 positioning the spider. The arms 5 are spread by blocks 11, 111 slidable on a guide rod 14. The blocks have projections 11a, 111a fast therewith and members 23, 123 pivoted thereon and co-operating with cams 28, 128 to clamp the yoke arms. As shown the blocks are shifted to spread the arms by a screw 15 adjusted by a dynamometric wrench to exert a predetermined thrust on the arms. In other embodiments the blocks are adjusted hydraulically. The blocks are then temporarily locked to the guide rod 14 by friction brake pads 32 applied by pistons 34 in cylinders 35, 135 formed in the blocks, and then a wedge 13 is shifted to take up the space between the blocks. The friction locking means prevents the wedge from altering the position of the blocks. The locking means can now be released. The bearing cups are now secured in their respective bores in the yoke arms by securing elements 2 which are acted upon by pistons 22, 122 in cylinders 21, 121, the wedge 13 preventing any movement of the arms during this operation. In a modification the cylinders 21, 121 are provided in the blocks 11, 111, and in this case wedges are provided between the blocks and a support to prevent outward movement of the blocks while the securing elements are being fixed in the bores. Specifications 1,177,253, 1,079,602, 909,624 and 901,854 are referred to.
Patent GB-440441-A (GB)
Title: Improvements in or relating to interlocking mechanism for enclosed electric switch-fuse combinations
IPC: H01H9/10
Filed: 1934-06-30
Abstract: 440,441. Switch and fuse cases. CRABTREE, J. A., Endwood, Little Aston Park, Sutton Coldfield. June 30, 1934, No. 19359. [Class 38 (v)] The lid b of an enclosed switch-fuse contains a hole b<1> through which the dolly of the switch projects and is adapted to push the dolly into its " off " position when the lid is swung about its pivot b<3> to open the box. The dolly is then held in the open position by a spring- pressed catch c which moved into latching position when the lid was opened. When the lid is closed a projection d on it presses the catch c back so that the dolly has once again freedom of movement.
Patent GB-414213-A (GB)
Title: Improvements in or relating to the manufacture of hollow metal bars
IPC: B21C37/15
Filed: 1933-07-08
Abstract: A bonding metal alloy for uniting a ferrous liner to a hollow bar in the manufacture of rock drill steels consists of an alloy of 35-65 per cent of silver, 5-35 per cent of manganese and 10-60 per cent of copper, preferably 60 per cent of silver, 10 per cent of manganese and 30 per cent of copper.  Part of the silver may be replaced by zinc up to 20 per cent or by cadmium up to 5 per cent or by both zinc and cadmium within these limits. Another alloy consists of copper with 14 per cent of silver and less than 5 per cent of zinc.  A flux may be used in the process consisting of equal parts of boric acid or fused borax and potassium fluoride.
Patent GB-1469851-A (GB)
Title: Ventilation device
IPC: F24F1/01
Filed: 1974-05-02
Abstract: 1469851 Ventilators SVENSKA FLAKTFABRIKEN AB 2 May 1974 [7 May 1973] 19383/74 Heading F4V An air delivery device for connection to an air supply duct of a ventilation system comprises an outlet having a main aperture and one or more nozzles at or immediately adjacent the main aperture, the or each nozzle being adjustable in orientation relative to the main aperture, a first duct connected to the main aperture for supplying thereto the majority of an air stream delivered in use by the said supply duct, and a second duct connected to the nozzle(s) for supplying thereto the remainder of said air stream, the first and second duets being separate adjacent the outlet. In the form shown, the first duct 2 contains a plenum chamber 5 supplied by a duct 4. Air passes from chamber 5 via nozzles 6, 6a, the second duct 7 connecting one of the nozzles 6a to a row of nozzles 8. Each nozzle 8 is pivotable relative to the duct 7, and the outflow area of each nozzle 8 may be adjustable by means of an iris diaphragm. The outlet is arranged in a window sill 10<SP>1</SP>. In another embodiment (Fig. 2), the second duct (4b) is connected to the first duct (2a) upstream of a pivoted flap (13) therein.
Patent GB-1166972-A (GB)
Title: Liquid-Cooled Pistons for Internal Combustion Engines
IPC: F01P3/10
Filed: 1968-04-24
Abstract: 1,166,972. Cooling pistons. SULZER BROS. Ltd. 24 April, 1968 [28 April, 1967], No. 19416/68. Heading F2T. In a piston 2 comprising a cooling chamber 3 partly filled with liquid during operation, a conical guide member 42 extending axially of the piston and enclosing a passage of contracting cross-sectional area open at both ends to the part of the chamber outside the passage is housed in the chamber. The piston is formed by parts 30, 31 secured together and to the piston rod 4 by bolts 32 and the cooling chamber 3 is closed by a cover 40 having a crenellated flange with recesses 41, the guide member being attached to the projections between the recesses and having radial ribs 45 on its exterior aligned with ribs 43 supporting the piston crown 38. Cooling water is supplied to and returned from the chamber 3 through coolant tubes 9 communicating with inlet and outlet ducts 39 and 37 respectively. In operation, the cooling water is circulated through the member 42, by movement of the piston, being drawn inwardly through the recesses 41 and flowing outwardly from the crown end of the member. In a modification, Figs. 5 and 6 (not shown), the inlet (57) and outlet (60) ducts to the cooling chamber (51) are on diametrically opposite sides of the guide member (55).
Patent GB-1351235-A (GB)
Title: Device for mass or heat transfer
IPC: F28C3/00
Filed: 1971-06-08
Abstract: 1351235 Direct contact heat exchangers CESKOSLOVENSKA AKADEMIE VED 8 June 1971 [8 June 1970] 19522/71 Heading F4K [Also in Division B1] A unitary structure for packing a direct contact heat exchanger comprises a plurality of plates 1 spaced apart by strips 2 at their upper edges, and suspended from a collar 4 by means of slats 5 provided on the interior surface of the collar. The strips 2 are provided with projections 3 for abutment against the plates 1 to create spaces for the passage of gas and liquid between the plates. The plates may be made of an expanded metal, in which case the projections on the strips are omitted.
Patent GB-260360-A (GB)
Title: Improvements in or relating to means for controlling electric lighting installations in railway carriages or the like
IPC: H02J7/14
Filed: 1925-08-04
Abstract: 260,360. Trinchero, F. Aug. 4, 1925. Drawings to Specification. Light-sensitive cells.-A selenium cell has a glass cover fixed on a socket of insulating material and ground or coloured at the upper part to reduce the amount of light falling on the cell.
Patent GB-993272-A (GB)
Title: Crystalline polyesters
Inventor: GOODMAN ISAAC
IPC: C08G63/672
Filed: 1962-05-22
Abstract: A linear crystalline polyester contains the repeating unit -CO-R1-COO-R11-O-, where R1 is <FORM:0993272/C3/1> where R is -CH3, -O-alkyl or halogen, <FORM:0993272/C3/2> where R is -CH3, -O-alkyl or halogen, <FORM:0993272/C3/3> where R is -CH3, -O-alkyl or halogen, <FORM:0993272/C3/4> where n is zero or 1 and #c and y are dissimilar, being zero or an integer. <FORM:0993272/C3/5> biphenylene-2:41, biphenylene-3:41, naphthylene-1:6, naphthylene-1:7, monosubstituted naphthylene - 1:4, monosubstituted naphthylene-1:5, monosubstituted naphthylene-2:6 or monosubstituted naphthylene-2:7; R11 is <FORM:0993272/C3/6> where R is -CH3, -O-alkyl or halogen, <FORM:0993272/C3/7> where R is -CH3, -O-alkyl or halogen, <FORM:0993272/C3/8> where R is -CH3, -O-alkyl or halogen, a and <FORM:0993272/C3/9> where R is -CH3, -O-alkyl or halogen, a and b are dissimilar, each being zero or an integer not greater than 4, <FORM:0993272/C3/100> where R is -CH3, -O-alkyl or halogen, <FORM:0993272/C3/111> where #c and y are dissimilar, being zero or an integer, naphthylene-1:6, naphthylene-1:7, monosubstituted naphthylene-1:4, monosub-substituted naphthylene - 1:4, monosubstituted naphthylene-1:5, monosubstituted naphthylene - 2:6, monosubstituted naphthylene - 2:7 or monosubstituted naphthylene-1:8. The examples describe the preparation of polymers from: (1) 2-methylhydroquinone and 2-methoxyterephthaloyl chloride; (2) 2-chlorohydroquinone and 2-methylterephthaloyl chloride; (3) 2-methyl hydroquinone and 2-methylterephthaloyl chloride; (4) 2-methyl hydroquinone, 2-methylterephthaloyl chloride and sebacoyl chloride; (5) chlorohydroquinone and methoxyterephthaloyl chloride; (6) 2-methoxyhydroquinone and methoxyterephthaloyl chloride; (7) bromohydroquinone and methoxyterephthaloyl chloride; (8) bromohydroquinone and chloroterephthaloyl chloride; (9) methoxyhydroquinone and chloroterephthaloyl chloride; (10) methylhydroquinone and chloroterephthaloyl chloride; (11) methylhydroquinone, methoxyterephthaloyl chloride and isophthaloyl chloride; (12) chlorohydroquinone, methoxy terephthaloyl chloride and isophthaloyl chloride; (13) bromohydroquinone, isophthaloyl chloride and methoxyterephthaloyl chloride; (14) to (16) methyl hydroquinone, methoxyterephthaloyl chloride and sebacoyl chloride.
Patent GB-419968-A (GB)
Title: Improvements in fastenings with keep plates
IPC: F16B21/16
Filed: 1933-07-11
Abstract: 419,968. Bolts; cotters ; stud &c. fastenings. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and WHITEWAY, G. F., c/o Fraser and Chalmers Engineering Works, Erith, Kent. July 11, 1933, No. 19649. [Classes 44, 89 (i), and 89 (ii).] Means for securing a pin or shaft 1 in a bearing-plate, or other apertured member 2 comprises a spring plate 5 with prongs 6 shouldered at 9, which is slid into position with the edges 4 of the narrower portion of the gap between the prongs engaging slots in member 1. The prongs have claws 7 which snap over the edge of member 2 under the " set " of the plate, to retain the plate in place. The reduced or shouldered end 3 of member 1 which fits the aperture in member 2 may have flats 8, and the shoulders 9 of plate 5 have inclination or lead to facilitate entry into the slots.
Patent GB-1270656-A (GB)
Title: Food colours
Inventor: JENKINS FREDERICK PETER
IPC: A23L1/275
Filed: 1968-04-25
Abstract: 1,270,656. Food colours. UNILEVER Ltd. 24 April, 1969 [25 April, 1968], No. 19671/68. Heading A2B. [Also in Division C4] A food (e.g. sausage, carbonated drinks, icecream, jam) is coloured with 8-acetamido-2- (azo-benzene-4-sulphonic acid)-1-naphthol-3, 6- disulphonic acid or a salt (e.g. Na) thereof. The dye may be prepared by reacting sulphanilic acid, sodium nitrite and hydrochloric acid in the presence of sodium carbonate and water, reacting the resultant diazonium salt with 8- acetamido-1-naphthol-3, 6-disulphonic acid in the presence of sodium carbonate and water, adding ammonia to the reaction mixture, acidifying with acetic acid and heating the mixture, precipitating the dye with salt solution and purifying the dye with the use of more salt solution. Alternatively, the dye may be prepared by reacting the diazonium salt prepared as above with 8-acetamido-1-naphthol-3, 6-disulphonic acid in the presence of sodium hydroxide, neutralising the mixture with hydrochloric acid, evaporating the mixture to give the dye which is purified by recrystallising in ethanol.
Patent GB-1152791-A (GB)
Title: Polymerisation of Ethylene
IPC: C08F10/00
Filed: 1966-05-04
Abstract: 1,152,791. Polymerizing ethylene. SOC. NATIONALE DES PETROLES D'AQUITAINE. 4 May, 1966 [6 May, 1965], No. 19765/66. Heading C3P. In a process for the polymerization of ethylene at high pressure in a reaction vessel, the reaction product and unreacted material are drawn off by means of a valve at the outlet of the vessel, the valve being opened and closed at times such that the interval of time between one closing of the valve and the following opening is controlled by the integral of the pressure prevailing in the vessel, or the duration of the opening of the valve is controlled in response to a function of the pressure prevailing in the vessel at the instant which immediately precedes the opening of the valve. The control apparatus may comprise an electrical or electronic control system, such as that described in Specification 1,152,792.
Patent GB-1138535-A (GB)
Title: Improvements in or relating to the manufacture of polyurethanes
Inventor: LEWIS JOHN RICHARD
IPC: C08G18/54
Filed: 1965-05-11
Abstract: 1,138,535. Polyurethanes; alkoxylated resoles. IMPERIAL CHEMICAL INDUSTRIES Ltd. 25 April, 1966 [11 May, 1965], No. 19831/65. Headings C3C and C3R. Polyurethanes are prepared by reacting an organic polyisocyanate with a polyol which is the reaction product of an alkylene oxide with a resole. The resole is preferably prepared by reacting phenol with formaldehyde in the presence of a basic catalyst but other phenols such as cresols or resorcinol and other aldehydes such as acetaldehyde and glyoxal may be used. Propylene oxide is the preferred alkylene oxide for the reaction with the resole but ethylene oxide, 1,2-butylene oxide or epichlorohydrin may be used. Suitable polyisocyanates are the conventional aliphatic, cycloaliphatic and aromatic diisocyanates, triisocyanates such as toluene-2,4,6-triisocyanate and diphenylether- 2,4,4<SP>1</SP>-triisocyanate, reaction products of an excess of diisocyanate with a trihydric alcohol, uretdione dimers and isocyanurate polymers of diisocyanates. Foamed polyurethanes may be prepared by incorporating water and/or an inert low-boiling liquid in the reaction mixture. Conventional catalysts, surface active agents, foam-stabilizing agents, flame retardants and antioxidants may also be used. The resole may be reacted with the alkylene oxide in the presence of a basic catalyst at 50‹ to 150‹ C. Mixtures of alkylene oxides may be used or the resole may be reacted with two or more alkylene oxides in a multi-stage process, a different alkylene oxide being used at each stage. Examples describe the preparation of a resole from phenol and formaldehyde in the form of formalin which resole is further reacted with propylene oxide. Reference has been directed by the Comptroller to Specification 1,029,033.
Patent GB-477701-A (GB)
Title: Improvements in soap cooling presses
IPC: C11D13/12
Filed: 1936-07-17
Abstract: 477,701. Solidifying liquids by cooling. SIMON, H., Ltd., LEDGER, H. C., and GRAHAM, J. July 17, 1936, No. 19836. [Class 29] A water-cooled cell for a soap press is formed of two parts each comprising a flat plate a, Fig. 3, to which are secured baffles b, Fig. 1, to provide a sinuous path for the water which flows through the cell from an inlet h to a similar outlet, and a peripheral frame c having a tapered flange e. The parts are secured together by studs g passing through outer strips having tapered recesses to receive the flanges and screwed into internal strips i. The liquid soap flows into the spaces between the adjacent cells through ports m formed by rings n, n<1>, Fig. 5, welded to the plates.
Patent GB-1222122-A (GB)
Title: Improvements in and relating to gas burner assemblies
Inventor: VAILLANT HANS
IPC: F23D14/04
Filed: 1968-04-26
Abstract: 1,222,122. Gas burners. H. VAILLANT. 26 April, 1968 [28 April, 1967], No. 19872/68 Addition to 1,043,269. Heading F4T. In an improvement in or modification of the burner assembly of Specification 1,043,269 individual burners 1 are connected together to form one grid on each side of a connecting piece 10 by an L-shaped bracket 14 which extends parallel to the common distributing pipe 8 to which pipe each bracket is detachably secured. A diffuser pipe 15 having radial holes 15<SP>11</SP> for the admission of air and passing through an orifice in the bracket 14 is provided for each burner.
Patent GB-1385527-A (GB)
Title: Devices for measuring the dose rate of a beam of ionising radiation and for positioning such a beam with respect to a predetermined axis
IPC: G01T1/29
Filed: 1972-04-28
Abstract: 1385527 Measuring radioactivity THOMSONCSF 28 April 1972 [30 April 1971] 19958/72 Heading H4D [Also in Division H1] Apparatus to determine the dosage of a γ or # radiation beam 1 as well as its incident direction, comprises two crossed ionization chamber detectors, Fig. 2, each comprising Fig. 1, two earthed semicircular electrodes 14, 15 on an insulating disc base 13, the chamber being hermetically sealed with radiation transparent top and bottom covers 11, 12 charged to + 300v. The ionization chambers are positioned on the same reference axis 2 with one turned through 90 degrees with respect to the other so that the difference in the ionization voltages picked up by electrodes C1 and C2, i.e. (Vc1-Vc2) represents one, e.g. X co-ordinate of the beam's deviation from axis 2, whilst voltage difference (Vc3- Vc4) represents for the other chamber the Y co-ordinate of the beam's deviation. The respective sums (Vc1+Vc2), (Vc3+Vc4) give the beam intensity (dosage) twice over such that failure of one chamber still leaves one dosage reading.
Patent GB-881614-A (GB)
Title: Improvements of or relating to a method for manufacturing gramophone records
IPC: B29C43/02
Filed: 1960-06-07
Abstract: A gramophone record is moulded by a process in which an untensioned foil of plastic material at a temperature at which it is able to retain permanently an impressed pattern is introduced to the die or dies which are maintained at a temperature below that at which the material can be deformed.  Specification 858,154 is referred to.
Patent GB-144918-A (GB)
Title: Improvements in or relating to shuttlecocks and the like, and in the manufacture of same
IPC: A63B67/18
Filed: 1919-08-15
Abstract: 144,918. Wynne, T. Aug. 15, 1919. Shuttlecocks.-The base 1 has applied to its upper face a metal plate 3 perforated to receive the feathers and provided with points 5 which are bent downwards and then bent inwards into the base. The base is covered with fabric 6 which is cut to the form shown in Fig. 3, the joints being covered with tape 8, 9. The fabric is preferably applied to the base before the plate 3 is fixed thereto. The thickness of the plate may be varied to regulate the weighting of the shuttlecock.