baber/WOPTO huggingface dataset:
Patent GB-1377156-A (GB)
Title: Solvent mixtures
IPC: C11D7/26
Filed: 1973-06-22
Abstract: 1377156 Mixed solvents ISC CHEMICALS Ltd 22 June 1973 [2 Aug 1972] 36089/72 Heading C5D A solvent mixture for removing flux and other residues from printed circuit boards consists of trichlorotrifluoroethane (especially 1,1,2- trichloro-1,2,2-trifluoroethane), ethyl alcohol and isopropyl alcohol. The solvent may consist of 20 to 98% of the trichlorotrifluoroethane (A) with equal proportions by wt. of the alkanols, e.g. 65% of (A) with 17À5% by wt. of each alkanol or 97% of (A) with 1À5% by wt. of each alkanol. Specification 1,335,705 is referred to.
Patent GB-311647-A (GB)
Title: Improvements in or relating to mouthpieces for extrusion presses
IPC: B28B3/26
Filed: 1928-12-07
Abstract: 311,647. Welter, A. Dec. 7, 1928. Addition to 298,824. Extrusion machines. - The thin metal sheet 2 provided with the fine extrusion apertures described in the parent Specification is made not more than two millimetres in thickness.
Patent GB-341211-A (GB)
Title: Improvements relating to electric heating apparatus
IPC: H05B3/16
Filed: 1929-11-26
Abstract: 341,211. Wire resistances. DEAN, H. J., 44, Nottingham Street, Rotherbam. Nov. 26, 1929, No. 36167. [Class 37.] A wire resistance W is wound on a flat strip C of mica and enclosed in a tube A. At the junctions of component portions of the strip C are secured cross-pieces D of similar material which support the strip clear of the walls of the tube. Stiffening and return wires G are welded to the ends of studs H passing through the pieces D or are secured by split pins and washers.
Patent GB-813710-A (GB)
Title: Mobile animal-feeding trough
IPC: A01K5/01
Filed: 1956-11-27
Abstract: 813,710. Animal feeding appliances. SWAN, D. S. Nov. 26, 1957 [Nov. 27, 1956], No. 36222/56. Class 5(2). A mobile animal-feeding device comprises a trough 4 carried by a rectangular base 1 which is in turn supported on wheels 6 and legs 5. Closed end walls 2 are built on to the base and support a sloping roof 3 which can be raised to the position shown in dotted lines in Fig. 1. The sides of the appliance are open to allow animals to gain access to the trough. Cranked handles 7 are provided on one end wall, being slidable in guides 9 and are formed with stakelike ends 10 which on insertion into the ground, anchor the device in position.
Patent GB-1410890-A (GB)
Title: Aerating apparatus for liquids
IPC: C02F3/20
Filed: 1973-07-31
Abstract: 1410890 Aerating liquid FRINGS GmbH 31 July 1973 [1 Sept 1972] 36368/73 Heading B1C A submersible aerator (e.g. for sewage treatment), for installation in an upwardly open container inaccessible from below, comprises a vertical axis impeller 4 having four or more vertical non-radial vanes defining air outlet openings 14 facing away from the direction of rotation, a stator closely surrounding the impeller and having twelve or more vertical non- radial guide vanes 10 fixed between flat rings 9, a submersible motor 2 having a downwardly extending shaft 3 fast with the impeller and a flange 5 connected to the stator by way of spacer posts 8, and a stationary air suction pipe 7 having one end connected to the impeller by way of a labyrinth seal 6 and the other end arranged to be disposed outside the container and provided with a centrifugal or vane flow meter 16. In operation, liquid is sucked from the space above and below the impeller, mixed with air drawn in through the pipe 7, and thrown out between the rings 9. The outer diameter of the rings 9 and the guide vanes outer edge diameter are respectively 2 to 5 and 1.5 to 2.0 impeller outer edge diameter. The impeller speed is 1400 to 1750 RPM. As shown, a base plate 12 is attached to the lower flat ring 9 of the stator by way of sheet metal spacing and strengthening elements 11. The stator is further strengthened by reinforcing strips 15 outwardly aligned with alternate guide vanes 10. Adjustable screws 13 are provided in the base plate for vertical positioning of the apparatus. Straps 17 between the base plate and concreted-in posts 18 prevent rotation of the aerator. Upper and lower particle-entryprevention screens 19, 20 are disposed respectively around the posts 8 and the elements 11 and have a mesh size smaller than the impeller stator gap. In Fig 3 (not shown), a supporting structure (21) fixed to the motor flange 5, straddling the stator and dispensing with the straps 17, comprises at least three legs having adjustable screws 13 at their extremities.
Patent GB-344422-A (GB)
Title: Improvements relating to the manufacture or production of covers for electric switches, bell-pushes, ceiling-roses, couplings, and the like, and of analogous articles
Filed: 1929-11-29
Abstract: Insulating covers for electric switches, bell-pushes, ceiling roses, &c., comprising inner and outer shells of synthetic resin or phenol condensation products with an inserted textile reinforcement as described in Specification 322,434, [Class 87 (ii), Moulding plastic &c. substances], are made in stages, the outer shell and the reinforcement being shaped and subjected to curing treatment in a preliminary stage or stages, after which the material for the inner shell is charged into the preliminary product and the whole cover completed.  Reinforcements of wire gauze or perforated or roughened thin sheet metal may be employed. The tools may be shaped to form a beading on the shells to enclose the edges of the reinforcement.  The outer shell and reinforcement may be formed in the flat and subsequently shaped to the form of the cover.  Specification 325,486, [Class 87 (ii), Moulding plastic &c. substances], also is referred to.
Patent GB-859079-A (GB)
Title: A process for the thermal dealkylation of aromatic compounds
IPC: C07C4/16
Filed: 1959-10-29
Abstract: In the thermal dealkylation of aromatic compounds in the presence of a hydrogen-containing dealkylation gas, a gas mixture containing hydrogen and methane is separated from the product, subjected to partial combustion with oxygen and the product used as dealkylation gas.  Usually a bleed stream is removed from the gas before the partial combustion, carbon dioxide may be removed by washing and carbon monoxide reacted with steam to give hydrogen and carbon dioxide.  In a preferred embodiment the separated product gas after removal of a bleed stream is washed to remove carbon dioxide and separated into two streams.  The first is subjected to partial combustion, if desired in two parallel reactors.  Part of the hot product if a single reactor is used or the whole product from one of a pair of reactors is mixed with the second stream to heat it and the mixture is mixed with steam and reacted to give hydrogen and carbon dioxide.  The resultant mixture is washed to remove steam and carbon dioxide and mixed with the remain partial combustion products to reheat it for use in the dealkylation.  The starting material may be a single compound or mixtures such as petroleum hydrocarbons.  The hydrogen to hydrocarbon mol ratio may be between 1 and 20 and the reaction is effected at 500-1000 DEG  C. and 5-35 atmospheres gauge in an empty space or in the presence of inert particles.  The dealkylation may be partial or complete and insufficiently dealkylated product may be recycled.  Partial combustion is effected at about the same pressure for convenience and a suitable process is described in Specification 780,120.
Patent GB-957932-A (GB)
Title: Improved method for manufacturing formed collagen
IPC: D01F4/00
Filed: 1962-09-27
Abstract: In a process for the manufacture of formed collagen wherein solubilized collagen is employed as a binder for native collagen fibres and wherein the strength of the formed collagen containing the solubilized collagen in intimate association with the fibres of native collagen is increased, the formed collagen is brought into contact with an aqueous solution of ammonium sulphate, the aqueous solution having an ammonium sulphate concentration corresponding to not less than 0.2 saturation at 20 DEG C. Specifications 949,424, 957,628 and 957,650 are referred to.
Patent GB-1439967-A (GB)
Title: Azo anthraquinone and styryl dyestuffs
IPC: C09B62/44
Filed: 1973-08-02
Abstract: 1439967 Azo; anthraquinone and styryl dyestuffs CIBA-GEIGY AG 2 Aug 1973 [3 Aug 1972] 36821/73 Heading C4P Novel water-soluble disperse dyestuffs have the formula wherein F is a radical of a free disperse dyestuff containing no groups which dissociate in water, n is 1 or 2, X is an electrophilic group, R 1  is an optionally substituted -C 2 H 4 - group, and R 2  and R 3  are alkyl radicals which are different from each other and which carry altogether at least one water-solubilizing group and optionally still further substituents which do not impart solubility in water and R 3  can furthermore be H. The disperse dyestuffs F are preferably azo and anthraquinone dyes; styryl dyes are also disclosed. The water solubilizing group may be -SO 3 H, -O-SO 3 H or -O-PO 3 H 2 , while the electrophilic group X includes -SO 2 NH-, -SO 2 -, -CONH-, -CO 2 -, and -CO- groups. Dyestuffs according to the invention contain a group that can be split off under the dyeing conditions and that carries at least one water-solubilizing group. The dyestuffs may be prepared (a) by reacting dyes of formula where Z represents a labile acyl group of a strong acid with an amine HNR 2 R 3 , (b) by addition of the same amine to the activated double bond in the dye of formula (c) by a coupling reaction, or (d) by a condensation reaction. The dyes give a range of colours, including yellow, red, orange and blue, and may be used for dyeing or printing semi-synthetic or fully synthetic textile materials. Among such materials are polyacrylonitile and its copolymers polyurethanes, polyamides, aromatic polyesters and cellulose acetates. Since the dyestuffs do not have to be in the form of a dispersion, there are no grinding problems.
Patent GB-1528856-A (GB)
Title: Ductor knife adjustment mechanism
IPC: B41F31/04
Filed: 1976-09-07
Abstract: For adjusting the ink gap on a ductor roller (1), a pin (3) is pressed onto the duct blade (2), the position of which pin can be adjusted by an adjusting lever arm (4) which is adjustable by means of a rotatable eccentric (7). The eccentric (7) is firmly connected to a toothed escapement wheel (6) to which a sprung catch member (13) and, on each side thereof, a pawl (18a, 19a), which is rotatable together with a shaft (16, 17), and an actuating arm (18b, 19b) are assigned. The pawl (18a, 19a) is engaged with the escapement wheel (6) by a pivoting finger (20, 21), actuated by a magnet (14, 15), and turns said escapement wheel in each case by one tooth in the clockwise or anticlockwise direction. When the magnet remains switched on, this is repeated until a cutout (24) in the escapement wheel (6) makes further switching impossible. A cable drive (10) and an indicator (12) connected thereto are adjusted by the escapement wheel (6), said indicator allowing the degree of inking to be read off. <IMAGE>
Patent GB-1394430-A (GB)
Title: Screw drives
IPC: F16H57/00
Filed: 1972-08-08
Abstract: 1394430 Automatic control of vibrations DECCA Ltd 19 July 1973 [8 Aug 1972] 37017/72 Heading G3R Vibrations in a member 10, 11 driven by a carriage 4 on a leadscrew 3, are nulled by a Piezoelectric element 8, driven according to the sensed vibration of member 10, 11. As shown, the output of vibration sensor 13 passes through a band-pass filter 15 and inverting amplifier 14 to drive element 8, which is positioned between a plate 6 on the carriage and a cap 7. The latter has a spherical surface 9 abutting the driven member 10, 11 e.g. driving a thermoplastics disc upon which a spiral recording groove is formed by an electron beam.
Patent GB-769604-A (GB)
Title: Hot extrusion of metals or alloys into elongated products
IPC: B21C23/01
Filed: 1954-12-22
Abstract: In an extrusion operation (see Group XXII) the following alloys are used: a high speed steel having a composition of the following parts by weight; C-0.75, Si-0.30, Mn-0.30, Cr-4, W-18, Va-1, remainder Fe: a nickel alloy having a composition of the following parts by weight; C-0.05, Si-0.5, Mn-0.5, Ni-75, Cr-18, Ti-2, Al-1, Fe<3.
Patent GB-1453165-A (GB)
Title: Tiered package assembly and a clip therefore
IPC: B65D19/44
Filed: 1974-08-23
Abstract: 1453165 Stacked packages E I DU PONT DE NEMOURS & CO 23 Aug 1974 [24 Aug 1973] 37138/74 Heading B8C [Also in Divisions E2 and F2] Packages horizontally supported between vertically positioned flat end panels are interlocked in a tiered assembly by clips, each having a planar central section 20 with parallel side edges 21, 22, at least one lip 23, 24 and one flap 25, 26, respectively projecting in opposite directions from each edge to embrace the vertical surfaces of adjacent end panels, and sharp projections 27-30 extending from the central section 20 to engage the ends of the adjacent end panels. The clip may be formed from a sheet metal blank. Each package may comprise a roll of plastics film with a strap (16), Fig. 1 (not shown), binding the end panels and roll together. Further straps (17) may pass through cores of diagonally adjacent rolls to stabilize the assembly.
Patent GB-738639-A (GB)
Title: Light-sensitive photographic elements and emulsions suitable for x-ray exposure
IPC: G03C5/16
Filed: 1953-06-03
Abstract: Quinitol 2-ethyl hexoate is prepared by heating 1 : 4-cyclohexane-diol with four equivalents of 2-ethyl hexoic acid in the presence of zinc dust and distilling off an azeotropic mixture of water and 2-ethyl hexoic acid.
Patent GB-786023-A (GB)
Title: Improvements relating to the printing of information received from a record means such as a magnetic storage, cathode ray screen or the like
IPC: G06K15/04
Filed: 1950-06-23
Abstract: 786,023. Selective printing. DIRKS, G. June 23, 1950 [Oct. 1, 1948], No. 37202/54. Divided out of 786,021 [Group XIX]. Class100(4) [Also in Group XIX] A printing means comprises typecarrying members, one for each denomination, means for traversing the several type characters on a member through a printing position and relays, each operable to arrest the movement of a type - carrying member in dependence on a signal from record means. In the described embodiment the data to be printed is recorded on a track a, Fig. 2, ot a magnetic disc or drum, the track being divided into sections representing decimal denominations, and each digit being represented by a magnetized spot in one of ten possible positions within a section. Ten reading heads 29/0 to 29/9 are used for sensing the digit in each section; a further head 16 picks up control signals 17 on a second track n which ensure correct registration between the heads 29/0 to 29/9 and the digit sections by rendering an amplifier 26 operative only during the passage of a signal 17 past the head 16. The denomination sections are selected in succession, by the movement of a soft iron yoke 22, in synchronism with the movement of the magnetic track, past pairs of inductors 21/1 to 21/16 and 24/1 to 24/16. Any impulse derived from a sensing head 29/0 to 29/9 is transmitted by the yoke and, via a plugboard 28 or switching unit, serves to fire one of a series of gas discharge tubes 27/1 to 27/16 which operates an associated electromagnet 9, Fig. 1. A series of pawls 8/1 to 8/16, releasable by the electromagnets 9, arrest type-bearing members 4/1 to 4/16 which are connected by springs 12 to a vertically moving frame comprising a commutator 14, 15 which brings into operation that one of the sensing heads 29/0 to 29/9 which corresponds with the type digit at the printing position. According to an example quoted in the Specification the complete upwards movement of the type takes 0.2 second i.e. 0.02 second for each digit position, and the record means rotates at 50 revolutions per second. Specifications 442.534 [Group VIII], 786,028 [Group XXXVIII] and 786,033 [Group XIX] also are referred to.
Patent GB-323896-A (GB)
Title: Improvements in or relating to the making of roads, pavings, foundations or the like
IPC: C08L95/00
Filed: 1928-12-17
Abstract: 323,896. Berry, Wiggins, & Co., Ltd., and Hohmes, H. H. Dec. 17, 1928. Bituminous compositions.-Relates to processes for making bituminous compositions, for roads, foundations, &c., of the kind in which mineral aggregate is coated with an aqueous emulsion of a bituminous or tarry substance, and consists in adding sodium silicate or other water soluble silicate to the composition, the silicate having the property of increasing the viscosity of the emulsion. The silicate mav be added to the aggregate or, to the emulsion, or portions of the silicate and emulsion may be added alternately to the aggregate. In an example, half a gallon of a water solution of sodium silicate of specific gravity 1.42 is added to 12 gallons of a bituminous emulsion containing 60 per cent of bitumen, and the mixture is applied to about one ton of stone aggregate.
Patent GB-1151996-A (GB)
Title: High Speed Forging Hammer Apparatus
IPC: B21J7/24
Filed: 1966-08-19
Abstract: 1,151,996. Forging hammers. NIHON SEIKOSHO K.K. 19 Aug., 1966 [19 Aug., 1965], No. 37261/66. Heading B3H. A high speed forging hammer has a vertical cylinder 18 containing a piston 22 connected to the hammer tup 28, 30 and which divides the cylinder into upper and lower spaces 24, 25, which are interconnected in the fluid circuit to form a closed loop system. The lower space 25 is connected through conduit 69 with a low pressure reservoir 66 and the upper space 24 is connected through ports 48, annular chamber 46, valve 50 and conduit 77 with a high pressure reservoir 67. The two reservoirs are interconnected by a compressor 72 and the upper and lower cylinder spaces are interconnected by a bleed duct 42 in piston 22. In operation, the piston 22 in its upper position closes upon a seat 44. An extension 26 of the piston actuates a starting device 58, which opens valve 50 to admit high pressure gas into chamber 46. Valve 50 then closes and device 58 moves piston 22 from its seat, Fig. 3 (not shown), whereby the high pressure acts instantly in cylinder space 24 to effect the forging stroke, Fig. 4 (not shown). After impact the pressure in the cylinder spaces 24, 25 becomes equalized through bleed duct 42 whereby the piston 22 is raised by the upward thrust due to differential piston areas. The compressor 72. includes an unloader for setting the pressure and means are provided to make up for loss of fluid in the system. The starting device 58 may act as a sequence programming device and both the starting device and the valve 50 may be controlled mechanically, electrically or pneumatically. In another embodiment, Fig. 5 (not shown) the bleed duct 42 is replaced by external ducts (78) which may include a valve (80) for varying the lifting speed. The valve may be replaced by an orifice.
Patent GB-895068-A (GB)
Title: Improvements relating to ball and socket joints
IPC: F16C11/06
Filed: 1959-11-03
Abstract: 895,068. Moulding bearings for ball and socket joints. LANGEN, V. Nov. 3, 1959 [Nov. 4, 1958], No. 37289/59. Class 87(2). [Also in Group XXV] A method of making a bearing bush 1 for a ball and socket joint consists of forming it, together with a sleevelike extension 3 and sealing collar 13 intended to extend around the ball pin, by casting or injection moulding with a cross-linked polyurethane, and then expanding the extension and collar laterally to increase their diameter and reduce their wall thickness and hardness. The bush, Fig. 2, is formed in a mould 14, Fig. 6, and a core 18, Fig. 7, is then introduced into the extension 3 so that the extension is expanded laterally. The core, together with the bush, is then placed in a die 20, 22 designed to be heated e.g. electrically, and as a result of the heat and pressure the elastic deformation of the extension is changed into a plastic deformation. The completed bush is shown in Fig. 3. The walls of the expanded extension may be smooth, as shown, or corrugated.
Patent GB-1214024-A (GB)
Title: Magnetic thin film memory
Inventor: AXFORD JOHN GILBERT
IPC: G11C11/14
Filed: 1968-08-06
Abstract: 1,214,024. Circuits employing bi-stable magnetic elements. INTERNATIONAL BUSINESS MACHINES CORP. 6 Aug., 1968, No. 37412/68. Heading H3B. In a magnetic thin film memory information is read out of a word by applying an oscillatory active signal of frequency # together with a biasing magnetic field to the elements of a word and detecting the phase of signals at frequency # produced in the associated bit lines. The memory of Fig. 2 comprises in groups 10a, 10b to 10m each of which is an N x n array of anisotropic thin films and includes n bit lines 11 each extending along a respective row of elements and a single bias line 12 extending along all the columns of elements in the group for simultaneously applying a hard axis bias field. To effect read out of data from a word storage location an oscillatory drive signal is supplied by word drive circuit 14 to the word line coupled to the required word storage location and a bias signal applied simultaneously to the bias line 12 of the group in which the required storage location is located. A sense signal is developed in all of the sense/bit lines 11 of the memory but only the bit lines of the group to which the bias current is applied have a significant component at the fundamental frequency # of the sinusoidal drive signal. The signals at the fundamental frequency are passed by filters 23 to phase detectors 24 and the signals developed on output lines 25 are indicative of the data stored, Fig. 3 (not shown). Information is stored by applying bit currents to selected bit/sense lines of the required polarity simultaneously with the oscillatory word drive signal and bias field applied to a selected word line, Fig. 4. As shown all the diodes 27 of each segment are connected to a respective control line 29 and all diodes 28 are connected to control line 30. In order to select the bit lines of a respective group for the storage of information control lines 29, 30 are both connected to ground potential, control lines 29, 30 of unselected segments being connected to negative and positive potentials respectively. Resistors 31 and capacitors 32 present an open circuit to the bit currents but provide a resonable termination at the high frequencies of the sense signals during reacting. The oscillatory drive signals may be applied to the bias lines and the D.C. bias signal applied to the word lines. The hard axis bias field may be provided by field windings or coils surrounding respective segments of the memory instead of a bias line.
Patent GB-803420-A (GB)
Title: Improvements in or relating to centrifugal switches
Inventor: JONES FREDERICK RAYMOND
IPC: H01H35/10
Filed: 1954-12-29
Abstract: 803,420. Centrifugal switches. PLESSEY CO., Ltd. Dec. 29, 1955 [Dec. 29, 1954], No. 37513/54. Class 38 (5). A centrifugal switch device comprises a pair of members 25 pivoted on a frame 21 which is clamped to a rotating shaft, the members 25 being weighted so that at speed they swing out and engage a pivoted operating plate 29 of a snap-action switch, and the frictional engagement between a member and the plate is sufficient to cause the member to continue to swing outwards until the plate moves through its dead centre position. The members 25 are oppositely disposed on the frame and have actuating surfaces at each end so that the switch operates for either rotational direction and for increasing and decreasing speed. The switch proper comprises a kinked spring blade 32 whose end engages a slot in a plate 35 secured to the plate 29 and which carries a movable contact which engages a fixed contact.