baber/WOPTO huggingface dataset:
Patent GB-307295-A (GB)
IPC: H03J3/06
Filed: 1929-03-04
Abstract: 307,295. British Thomson-Houston Co., Ltd., (Assignees of Bradbury, B.). March 2, 1928, [Convention date]. Thermionic amplifiers and detectors.-A radio receiving circuit employing screen-grid valves 1, 2 as high-frequency amplifiers has a tunable link circuit 13 arranged between the plate circuit of the valve 1 and the grid circuit of the valve 2. The link circuit is closely coupled to the preceding plate circuit with preferably a one-to-one ratio, but is very loosely-coupled to the tuned grid circuit 14 of the next valve. The coils and wiring are so arranged that there is also an electrostatic coupling between the link circuit 13 and the grid circuit 14, which induces a voltage in the grid circuit of less amplitude but of opposite sign to the voltage induced magnetically by the coils 11, 12. This gives uniformity of amplification over the tuning-range. The detector valve 3 is arranged for reaction by a plate coil 17 fixedly-coupled to the tuned grid circuit 16, and the effect is rendered more uniform over the tuning-range by tuning part of the coil 17 to a frequency beyond the long-wave end of that range, and broadening the tuning by a resistance 19. The aerial circuit includes a small series condenser 30 and a coil 31, and is fixedly tuned to a frequency beyond the long-wave end of the receiving-range. The tuning-condensers of the circuits 13, 14, 16 may be conjointly operated.
Patent GB-707808-A (GB)
Title: Vaporizable liquid electrode boilers
IPC: F24H1/10
Filed: 1952-03-18
Abstract: 707,808. Heat transmitting media. LIVINGSTONE ENGINEERING CO. March 18, 1952 [March 20, 1951], No. 6982/52. Drawings to Specification. Class 64(2) [Also in Group XI] In a heating system in which current passes between electrodes through a liquid to be vaporized in a tank (see Group XI), the liquid comprises a mixture of a glycol and an electrolyte. Ethylene glycol, diethylene glycol, propylene glycol or dipropylene glycol is used, and the electrolyte added is about 5-12 per cent of the liquid. Soda ash or other alkali metal carbonate, bicarbonate, phosphate or halide, e.g. sodium chloride or trisodium phosphate, is used as electrolyte. The boiler is applied to jacketed kettles, sterilizers or autoclaves, or the vapour may be circulated to a mould or other heat-exchanger, the condensate returning to the,boiler.
Patent GB-1529772-A (GB)
Title: Phase shifters
IPC: H01Q3/38
Filed: 1977-02-18
Abstract: 1529772 Phased arrays RAYTHEON CO 18 Feb 1977 [26 Feb 1976] 6990/77 Heading H4A [Also in Division H1] A phased array capable of variable polarization comprises a line of orthogonal stripline dipoles 14, 16 (one pair only shown) having feed lines 122,124. The feeding arrangement for each pair is shown in Fig. 4 and comprises two lines 113, 115 coupled at spaced points by quadrature hybrid couplers 111, 117. The lines are provided with diode-controlled stripline phase-shifters 110, 112, 114, 116, 118, 120 and two further diode phase-shifters respectively providing shifts of 22À5 degrees and 45 degrees in the common input line. Each phase shifter gives either a shift of zero or of the value shown according to a setting determined by logic circuitry. Tables of phase bit settings for various polarizations and various phase delays are given in the specification.
Patent GB-947292-A (GB)
Title: Method and apparatus for washing bottles and other containers
IPC: B08B9/30
Filed: 1962-02-23
Abstract: 947,292. Methods for washing bottles. BARRY-WEHMILLER MACHINERY CO. Feb. 23, 1962 [March 1, 1961], No. 7113/62. Heading B8T. A method of washing bottles internally by the action of a jet of working fluid under pressure includes moving a group of jets in a path adjacent a series of moving inverted bottles in timed relation thereto, registering the jets with successive groups of bottles of the series and controlling the supply of washing fluid to the groups of jets in predetermined sequence and in intermittent timed relation to inject intermittently washing fluid into the successive groups of bottles while in motion. The bottles are deposited in the pockets 15 of an endless conveyer 14 and whilst inverted washing fluid is injected into each bottle from a travelling spray jet device 17. The latter comprises a plurality of bottle guides 75 supported in a carrying frame, which is suspended by means of pins 58 from an oscillating crank mechanism 61, 62, 63, 64. Each guide 75 has conical pockets 74 (not shown) with a bottom aperture in each to register with the mouth of the inverted bottles. The device 17 is provided with two groups of headers extending inwardly from opposite side channels 52, each group of headers carrying a plurality of spray nozzles spaced along its length and matching the apertures in the pockets 74 of the guides 75. The device 17 works in conjunction with a stationary exterior spray head 18 and is associated with an assembly 19 of cam actuated valves through a plurality of flexible conduits 20, 21, the valve assembly 19 and spray 18 being connected in the washing fluid system. The device 17 and crank mechanism 61, 62, 63, 64 are actuated through a cam-crank with push-rods mechanism 67, 68, 69, 70, driven by a motor 72. The washing fluid after draining from the bottles is collected in a pan 29 and drained through a strainer outlet 30 to a sump 26 where it is admitted to a filter unit 25 for recirculation.
Patent GB-250887-A (GB)
Title: Drinking vessel
IPC: A47G19/22
Filed: 1926-03-15
Abstract: 250,887. Marx, E. March 15, 1926. No Patent granted (Sealing fee not paid). Drinking-vessels.-The foot 3 of a drinking vessel 1 is made hollow and contains a clapper 6 so that it may serve as a hand-bell. The vessel 1 may be in one piece and of glass or the upper part may be of glass connected to a metal foot by a stem and socket or a screw.
Patent GB-724814-A (GB)
Title: Apparatus for heating insulating materials
IPC: C10C3/12
Filed: 1953-03-16
Abstract: 724,814. Tar &c. melting cauldrons. SOC. DES USINES A TUBES DE LA SARRE. March 16, 1953 [March 14, 1952], No. 7246/53. Class 107.  An apparatus for melting tar or the like comprises a vessel with double walls 12, 13 through which hot gases are passed, and a rotating screening drum 3 with integral scrapers 6, 6<SP>1</SP>, the latter cleaning the inside of the wall 12. The spindle 4 of the drum and scrapers, is slowly rotated by a motor 10 through suitable gearing. Material is fed into a funnel 2 by a conveyer 1. A pump 17 discharges molten tar. The hot gases are produced in a furnace 14.
Patent GB-199095-A (GB)
Title: Process for the treatment of rubber
IPC: C08J3/24
Filed: 1922-03-11
Abstract: 199,095. Jones, F. C. March 11, 1922. India-rubber &c., preparation of; vulcanizing.- Vulcanized rubber doughs are produced by preparing a self-vulcanizing gelling solution, and mixing this solution before it gets with a precipitant for rubber such as acetone, alcohol &c. By adding the gelling solution to a mixture of a precipitant and solvent such as benzene, or naphtha, a stable, non-gelling solution of vulcanized rubber results. According to examples, to 100 cc. of a 12¢ per cent solution of rubber vulcanized by the Peachey process, is added 150-200 cc. of acetone as the liquid thickens towards gelling, whereupon the rubber is precipitated as a dough, which can be moulded or otherwise worked before drying. If the vulcanized solution be poured carefully into 100 cc. of a mixture of 1 part of acetone to 2 parts of benzene, a stable solution results. Fillers, colouring matter &c. may be added to the dough.
Patent GB-280091-A (GB)
Title: Large gas-fired cooking stove
IPC: F24C15/32
Filed: 1927-03-16
Abstract: 280,091,. Mond, A. L., (Pharos Feuerstõtten Ges.). March 16, 1927. Gas cooking-stoves; boilers, arrangement of.- A large gas-fired cooking stove comprises a substantially closed combustion chamber f beneath the hot-plate k, into which chamber burners g, supplied with mixture under pressure, project laterally, substantially horizontal flames. Either the gas or air, or both, may be supplied under pressure, and the mixture requires no secondary air for combustion. A heat-accumulating baffle q, covered by a plate d of similar material, may be arranged to deflect the flames upwardly against the hot-plate. The gases from the combustion chamber may be used to heat ovens, hot cupboards, water-heaters, etc.; in the stove shown, they pass through flues u around an oven e and then through a flue in a water-tank w. A damper may be provided to close the flue u.
Patent GB-1130277-A (GB)
Title: Forming tube for glass fibers
IPC: B65H81/08
Filed: 1967-02-15
Abstract: 1,130,277. Making tubes. SONOCO PRODUCTS CO. 15 Feb., 1967 [18 March, 1966], No. 7364/67. Heading F2P. A non-rigid forming tube for glass fibres comprises at least one spirally wound ply 21, 23 of paper having a resin impregnated paper ply 32 spirally wound thereon. The fibres of the paper plies run longitudinally thereof so that the tube can be collapsed by a longitudinal folding (Fig. 5, not shown) and the angle of winding of the plies lies within the range 17 to 35 degrees. The ply 32 is impregnated by passage through a receptacle 34 containing a resin such as an acrylic resin in the form of an aqueous emulsion immediately prior to winding. The resin may be cured at room temperature or, more quickly, in an oven.
Patent GB-703858-A (GB)
Title: Improvements in or relating to adjustable bulldozers
IPC: E02F3/76
Filed: 1951-03-30
Abstract: 703,858. Bulldozers. RUSTON-BUCYRUS, Ltd. March 30, 1951 [June 9, 1950], No. 7410/51. Class 68(1) A bulldozer comprises a pair of push beams, pivotally attached at their rear ends to the tractor and carrying the blade at their forward ends, a transverse pivot point intermediate the ends of one or both of the beams, and extensible and retractable means which cause relative movement of the segments of the beam attached to the transverse pivot point and thereby tilts the blade about a generally fore-and-aft skew axis. In one form, Fig. 2, the blade 3 is rigidly attached to the push beams 1, 2 which are connected by universal joints 6, 7 to trunnion brackets 8, 9 on the tractor frame. The blade is raised and lowered by interconnected hydraulic cylinders 20, 21 fed from a hydraulic unit 27 on the front of the tractor. The beam 1 is formed of two segments 29, 30 interconnected by a transverse pivot joint 28 so that when the segments are moved relative one to the other by a double-acting hydraulic cylinder 31, also fed from the hydraulic unit 27, the blade tilts about a generally fore-and-aft axis. The beam 2 has a rigidly bolted butt point 43 which with the pivot 28 is disassembled when the blade is to be shipped separately. In another form, the blade is raised and lowered by a cable and winch and there is a pivot joint in each of the push beams, the segments of each beam being moved relative one to the other by a screw-type jack. When both jacks are extended or retracted the blade is turned about the transverse axis of the pivot joints, and when only one is operated the blade is tilted. In a further form, the push beams form the arms of a U-frame which extends around the front of the tractor and to which the blade is pivoted, and the transverse pivot joint intermediate the ends of the push beam permits limited relative sliding movement of the beam segments along the transverse axis of the joint. The blade may be retained in any desired position with respect to the frame to provide an angledozer. The universal joints 6, 7, Fig. 6, each comprise split collar members 38, 39 on the end of the push beam which register with a. spherical collar 41 which is in turn slidably and rotatably mounted on a trunnion 42 of the trunnion brackets. Thus the push beam has limited rotation about its longitudinal axis, limited movement along the trunnion 42, and unlimited rotation about the trunnion 42.
Patent GB-660907-A (GB)
Title: Improved process for dyeing artificial yarns
IPC: D01D10/04
Filed: 1949-03-18
Abstract: Cakes of artificial yarns which have been spun by means of funnels having serrated outlets are dyed, after stacking or piling them in a number of layers, without deforming them in a direction at right angles to the axis, and before they are dried. Preferably the cakes are stacked on a number of perforated plates placed one above the other and separated by distance pieces the heights of which decrease from the top downwards in order to increase the compression of the cakes from the top downwards for compensating the change in hydrostatic pressure.  The cakes may also be wound so as to have slightly lower permeability at the top than at the bottom of the cake.  Specifications 361,733 and 468,662 are referred to.
Patent GB-1015333-A (GB)
Title: Improvements in or relating to polyurethane foams
Inventor: LORD FRANK WHITLEY
Filed: 1963-02-25
Abstract: Foamed polyurethane materials are produced by the interaction of an organic polyisocyanate composition comprising a major proportion of a diarylmethane diisocyanate and at least 5% by weight of a polyisocyanate of functionality greater than two with a hydroxyl group-containing polyether in the presence of a gas-generating agent such as water or a low boiling-point liquid which is inert with respect to the polyurethane foam-forming ingredients, the combined active hydrogen content of the polyether and any water present being such that the weight of polyisocyanate composition required for the interaction is less than the weight of polyether used, the interaction proceeding by the steps of mixing the polyisocyanate composition with an amount of the polyether such that the rate ratio of polyisocyanate composition to polyether is at least equal to one, thus forming a dispersion of polyether in the polyisocyanate composition and thereafter mixing the dispersion with the gas-generating agent and the remaining quantity of polyether and allowing the mixture to react to form a foam. Diphenylmethane diisocyanate and phenyltolyl methane diisocyanate are especially suitable as the diarylmethane diisocyanates.  The polyisocyanate of functionality greater than 2 is present as 5% to 50% of the total polyisocyanate; it may be introduced in several ways: either directly to the diaryl methane diisocyanate or by reacting some diaryl methane diisocyanate with a polyhydric polyol or by partially polymerizing diarylmethane diisocyanate to form isocyanurate derivatives or by using polyisocyanates of functionality greater than two which have been formed as biproducts in the formation of diarylmethane diisocyanate by the phosgenation of crude diaminodiarylmethane. Water in quantities of up to 7% by weight of the polyether and low boiling point liquids such as halogenated hydrocarbons can be used as gas generating agents.  Surface active agents, catalysts, flame retardants, cross-linking agents, plasticizers, colouring matter and antioxidants can be incorporated into the reaction mixture.
Patent GB-763954-A (GB)
Title: Improvements relating to the purification of lactams
IPC: C07D201/16
Filed: 1954-03-15
Abstract: A process for purifying lactams comprises extracting the lactam with water from a solution of the crude lactam in an organic solvent not or only slightly miscible with water, and subjecting the resulting aqueous extract to an after-treatment with an organic solvent which is not appreciably miscible with water, in a quantity sufficiently small to ensure that substantially no lactam is removed.  The aqueous extraction and the after-treatment of the aqueous extract with an organic solvent are preferably carried out in a number of stages and in counter-current.  The solvent used for the after-treatment of the aqueous extract is preferably the same as that used for dissolving the crude lactam, e.g. benzene, toluene.  The process may be combined with other methods of purification, e.g. after - treatment with ion exchangers and surface-active adsorbents or preparation of the starting solution by extraction of a solution of more than 80 per cent of crude lactam in water.  The examples describe the purification of caprolactam.  Specifications 736,196, 757,406 and 762,879 are referred to.
Patent GB-550075-A (GB)
Title: Improvements in or relating to glued and like joints
IPC: B66F9/06
Filed: 1941-06-18
Abstract: 550,075. Carpenters' and like joints. KREMER, H. June 18, 1941, No. 7734. [Class 20 (ii)] [Also in Group VIII] Sheets or pieces of plywood &c. are connected by a scarf joint, the opposed overlapping edges being formed with complementary and smoothly chamfered marginal portions having wavy or indented inner and outer boundaries. The concave or convex curves of the contours may be identical as shown or the convex curves in one piece may be sharper than the concave curves so that the chamfered edge is of uniform width. The curves may be arranged to interlock and may be of saw-tooth form.
Patent GB-435039-A (GB)
Title: New wetting, cleansing, and emulsifying agents
IPC: C11D1/28
Filed: 1934-03-12
Abstract: Sulphuric esters having wetting, cleansing, foaming and emulsifying properties are prepared by treating with an addition product of sulphur trioxide and a tertiary amine, the aliphatic hydroxysulphides obtained by interacting alkyl mercaptans having 10--30 carbon atoms with halogenhydrins.  In examples: (1) cetyl mercaptan is reacted with ethylene chlorhydrin in the presence of sodium methoxide and the 2-hydroxyethylcetylsulphide produced sulphonated by means of sodium pyrosulphate and pyridine; (2) cetylmercaptan is reacted with glycerol a -monochlorhydrin in the presence of sodium and xylene and the b  : \su-dihydroxypropylcetylsulphide produced sulphonated with sodium pyrosulphate and pyridine; the product may be dried and freed from inorganic salts by means of methyl alcohol.  Ethylenebromhydrin, pentaerythritol and mannitol dichlor and dibromhydrins are mentioned as starting materials as well as dodecyl, tetradecyl, octadecenyl, eikosyl and melissyl mercaptans.  Specifications 317,736, [Class 2 (iii)], and 412,305 (as open to inspection under Sect. 91) are referred to.ALSO:Sulphuric esters having emulsifying properties are prepared by treating with an addition product of sulphur trioxide and a tertiary amine, the aliphatic hydroxysulphides obtained by interacting alkyl mercaptans having 10--30 carbon atoms with halogenhydrins.  In examples: (1) cetyl mercaptan is reacted with ethylene chlorhydrin in the presence of sodium methoxide and the 2-hydroxyethyl cetyl sulphide produced sulphonated by means of sodium pyrosulphate and pyridine: (2) cetylmercaptan is reacted with glycerol a -monochlorhydrin in the presence of sodium and xylene and the b :g -dihydroxypropylcetylsulphide produced sulphonated with sodium pyrosulphate and pyridine; the product may be dried and freed from inorganic salts by means of methyl alcohol.  Ethylenebromhydrin, pentaerythritol and mannitol dichlor and dibromhydrins are mentioned as starting materials as well as dodecyl, tetradecyl, octadecenyl, eikosyl and melissyl mercaptans.  Specifications 317,736, [Class 2 (iii)], and 412,305 (as open to inspection under Sect. 91) are referred to.
Patent GB-350493-A (GB)
Title: Improvements in inside heel pads
IPC: A43B21/32
Filed: 1930-03-10
Abstract: 350,493. Boots &c. TANIGAWA, T. and MAKINO, F. K., 14, Queen Street, Honolulu, Hawaii. March 10, 1930, No. 7781. [Class 17 (ii).] Inside heel cushions.-An inside heel pad 1 is filled with particles of dry, finely-comminuted cured rubber 10 capable of changing their relative positions under pressure to conform to the uneven pressures exerted upon them. The filling 10 is placed between an upper face 2 of pliable leather having an extension 4 with bevelled front edge 5 and a lower face of adhesive fabric 3 and retained in a pocket formed by sewing around the edges of the faces 2, 3.
Patent GB-632684-A (GB)
Title: Improvements in and relating to the bedplates of vertical-cylinder reciprocating engines
IPC: F02F7/00
Filed: 1947-03-21
Abstract: 632,684. Engine bedplates. HEMMINGSEN, T. V. March 21, 1947, No. 7782. Convention date, Feb. 2, 1944. [Class 122(iii)] [Also in Group XXVII] An engine bedplate comprises welded-up transverse girders 11, 12, 13 supporting the main bearings, and longitudinal girders bolted thereto and provided at the point of connection with stiffening plates 24. The longitudinal girders. which may themselves be divided longitudinally into sections bolted together, each comprise flanges 21, 22 and a web, divided opposite the transverse girders by bent back portions 23a, 23b. The web is made continuous by the strengthening plates 24 which are welded thereto and connected by bolts 25 to bent-over ends of the top and bottom flanges 12 of the transverse girders. The bedplate may be bolted to a support 6 by bolts 7 passing through the flanges 22. The Specification as open to inspection under Sect. 91 comprises also pairs of web plates 31, Fig. 5 (Cancelled) which are welded to the main bearings 13 and bent back at 31a, 31b and have stiffening plates 34, 36 welded thereto, the sections being connected by bolts passing through holes 35. This subject-matter does not appear in the Specification as accepted.
Patent GB-184520-A (GB)
Title: Improvements in typographical composing machines
IPC: B41B7/16
Filed: 1921-03-11
Abstract: 184,520. Imray, O., (Intertype Corporation). March 11, 1921. Assembling a n d distributing matrices; magazines.- Means is provided for enabling the machine to bandle relatively thick or extended-face matrices as well as the ordinary matrices. (1) In addition to the main magazine, 1, Fig. 1, the machine is provided with side magazines 3 for the extended-face matrices, which are mounted in a frame 14 movable about a vertical axis 15 into and out of engagement with the main magazine and its assembler. The side magazines comprise a single upper section 3a and a number of interchangeable lower sections 3 mounted on a triangular frame 26 which can be rotated by means of a handle 32. The main magazine is formed in two sections 1, 2, as heretofore, the upper section having extensions 17, Fig. 12, provided with projections 18, which are engaged by a cross-bar on the lower section to hold the two sections in engagement. Lateral movement of the lower section is prevented by sliding bolts 21. (2) The assembling-devices and the keyboard 7 for the side magazine are carried by the frame 14. The matrices fall upon a belt 38 which is driven from the main assembler-belt 39 through a yieldingly-mounted pulley 42. A bridge 46 on the main frame conveys the matrices on to the belt 39. The partitions 49, Figs. 18 and 19, of the assembler entrance are reduced at their upper ends to form narrow fingers 50 which are denected laterally, the fingers being adapted to engage and guide the ears of the matrices while allowing the matrix-bodies to pass over them. The pulley 40 of the main belt 39 has flanges between which the belt lies, and the shoot 52 that directs the matrices to the assembler lies at its upper end between and below the flanges so as to engage the matrices with certainty. (3) The magazine-entrance 10, Fig. 27b, is provided with . guiding means for the thick matrices in the form of flexible blades 54 secured to the partitions 55. (4 Pi-matrices M, Fig. 28, when released from the distributor-bar, are supported by their ears on a pair of rails 57 along which they are traversed by the screws 9. On reaching the ends of the rails, the matrices fall into a shoot 58 which engages the ears of the matrices and conducts them to a pi-stacker. (5) The extended-face matrices are formed with a central enclosed weight-reducing cavity m‹, Fig. 24. The distri. buting-teeth m<2> extend inwardly to and beyond the centre of the matrix-body so that the matrices will hang vertically from the distributor-bar. The matrices are bevelled at diagonally opposite corners m<3>, m<4> to avoid conflict between successive matrices during distribution. Specifications 14582/90 and 127,442 are referred to.