baber/WOPTO huggingface dataset:
Patent GB-718493-A (GB)
Title: Method for preparing condensation products containing a phenol-formaldehyde resin and a polyamide or the like fibre-forming substance
IPC: C08G8/38
Filed: 1950-05-02
Abstract: A composition of a phenol-formaldehyde resin and a high molecular weight linear polymer containing -NH-CO- recurring groups is made by first condensing a phenol with aqueous formaldehyde to produce a product consisting predominantly of a phenol alcohol and/or of di-p-dihydroxydiphenyl methane or a substitution derivative thereof and then dissolving the linear polymer therein and completing the phenol-formaldehyde condensation by heating, volatile substances being distilled off simultaneously.  The compositions may be used as varnishes for insulating electrical conductors, for moulding, for spraying or for producing sheets.  Specified linear polymers are poly-lactams, poly-omega-amino-fatty acids, polycondensates of diamines with dicarboxylic acids, polyesteramides, polyurethanes, polyhydrazides, polyureas and polymeric derivatives of carbamino-acids.  Specified phenols are phenol, the cresols, the xylenols, hydroxydiphenyl, naphthol, salicylic acid, catechol and resorcinol.  The phenol-formaldehyde condensation may be effected in acid or alkaline medium, or firstly in alkaline medium and then in acid medium or vice versa and preferably 0.75-2.0 mols of formaldehyde are used per mol of phenol.  Solvents may be added at the end of the condensation reaction which bind the formaldehyde, e.g. cresylic acid together with diluents, e.g. benzene or its homologues, tetrahydronaphthalene, aliphatic or aromatic alcohols, or solvent naphtha.  A softener, plasticizer, dye or pigment may also be added.  In an example, phenol is heated with aqueous formaldehyde containing some hexamethylenetetramine at 60 DEG C. and pH8 to produce a product containing 70-80 per cent. of phenol alcohol.  Then poly-caprolactam is added, the mixture heated to 60 DEG C. to dissolve the polyamide, the pH lowered to 3 with lactic acid and the mixture heated in vacuo up to 125 DEG C.  A solvent mixture of cresylic acid, solvent naphtha and tetrahydronaphthalene is then added, the mixture cooled and a solvent mixture of cresylic acid and ethyl alcohol added to produce an enamel.  Specification 545,941 and U.S.A. Specification 2,378,667 are referred to.
Patent GB-331828-A (GB)
Title: Improvements in or relating to sound reproducers or transmitters
IPC: H04R9/06
Filed: 1929-04-08
Abstract: 331,828. Matthew, E. M. April 8, 1929. Diaphragms - loud-speakers; magnetic instruments.-The diaphragm of a sound reproducer or transmitter is centred by pneumatic rubber tube9 co-operating with curved working surfaces to prevent creep of diaphragm or tube relative to each other or to the housing. The Figure shows a moving-coil loud-spea.ker in which the moulded diaphragm is suspended at its cylindrical periphery C by a rubber tube <yz> engaging with the radiused surfaces X of the moulded ring T. The coil former H is recessed at J to receive the winding, which may be of magnetic wire, or ribbon wound edgewise, and is divided into sections by square section rubber bands, connections to the coil being anchored to pips M on the diaphragm. The coil former is centred both radially and axially by a rubber tube Y, working between the surface P of the cradle and a radiused portion K of the former. Further tubes may be provided such as at Y<3> or between the coil former and magnet pole R<2>. The apex of the diaphragm is retained in order to prevent passage, of air between opposite sides, or a disc may be affixed at F. By varying the curvature of the surfaces X, K and adjusting the inflation of the tubes the degree of restraint on the diaphragm may be adjusted. A shallow annulus W is provided to receive a further rubber tube to serve as an air seal between the ring T and a baffle. The drawings of the Provisional Specification illustrate various centring arrangements. Figs. 1, 2 and 3 (not shown) show a single tube co-operating with the free edge of a conical diaphragm; in Fig. 4 (not shown) the tube is gripped between a circular recess in the cone edge and a similar recess in the baffle; Fig. 5 (not shown) shows a diaphragm edge held in a double tube, while Figs. 5, 6 and 8 (not shown) give three arrangements employing two tubes, one on each side the diaphragm edge. Figs. 9, 10 and 11 (not shown) give centring arrangements for the former of a moving-coil instrument, the applications of the rubber tubes being generally similar to those for the diaphragm edge. Specification 27945/10 is referred to.
Patent GB-352073-A (GB)
Title: Improvements in paper box making machines
IPC: B31B5/00
Filed: 1930-04-04
Abstract: 352,073. Making boxes. BERGSTEIN, S., 7, South Crescent Avenue, Cincinnati, Ohio, U.S.A. April 4, 1930, No. 10804. Convention date, April 6, 1929. [Class 18.] In a machine for making collapsed bores from blanks having side, end and sealing flaps by folding the sealing flaps on diagonal scored lines and then folding the gummed end flaps therein, the end flaps are selectively moved out of alignment with the side flaps and face of the blank as it is fed through the machine and movable means, synchronized with the blank feeding means, engage the rear sealing flaps to fold them on to the face of the blank. As shown the blanks, Fig. 8, are fed in the direction of the arrow from a pile by rollers 12, 13, Figs. 1 and 2, to belts 22, 23 which move them between guides 26, 26a with the end flaps C extending laterally therefrom. The end flaps are engaged by fingers 20 which deflect them slightly below the side flaps and face of the blank so that they pass under separator bars 24. The front sealing flaps e are engaged by the tapered ends 27 of the bars 24 and turned upwards on the diagonal scored lines g, folder bars 28 completing the folding of the flaps e on to the face of the blank. The rear sealing flaps e are folded on to the face of the blank by rotatable arms 31 and as the blank moves out of engagement with the arms it passes under fixed arms 32 and under the curved ends 36 of guides 35 to the glueing mechanism where rollers 38 provided with adjustable glueing pads glue the upper surfaces of the end flaps c which are then engaged by diagonallyarranged belts D and folded over on to the flaps e. The collapsed box then passes through a pressing mechanism to be delivered from the machine. The various parts of the machine are laterally adjustable to suit blanks of different widths and when blanks having end flaps which do not project laterally beyond the edges of the sealing flaps are used, the lower feed roller 13 is provided with laterally adjustable fingers 55 having projecting ends 56, 57 which raise the front and rear sealing flaps so that they pass over the bars 24 while the fingers 20 direct the end flaps under the bars. The feed rollers are driven by chain and sprocket gearing from the driven glueing roller shaft 40 and drives the shaft 50 geared to the arms 31 through chain and sprocket gearing.
Patent GB-1011783-A (GB)
Title: Improvements in cutting head assemblies for mining machines
Inventor: DAWSON GORDON BERTRAM
IPC: E21C27/22
Filed: 1963-03-19
Abstract: 1,011,783. Mineral-mining machines. COAL INDUSTRY (PATENTS) Ltd. March 13, 1964 [March 19, 1963], No. 10804/63. Heading E1F. In a mineral-mining machine in which two separately powered groups of rotary cutters are arranged at the front of the machine to rotate about spaced axes extending parallel to the direction of advance of the machine to make overlapping cuts means is provided to positively maintain a rotary cutter of one group out of phase with an overlapping and laterally adjacent rotary cutter of the other group. Preferably phasing gear for transmitting out of balance power is provided between the gear trains of the drives between the rotary cutters and the associated motors of each group. Specifications 800,864 and 975,556 are referred to.
Patent GB-1198418-A (GB)
Title: Anthraquinone Dyestuffs
Inventor: WUNDERLICH KLAUS
IPC: C07C209/64
Filed: 1969-02-28
Abstract: 1,198,418. 1 - Isopropylamino - 4 - amino - anthraquinone - 5 - sulphonic acid dyestuffs. FARBENFABRIKEN BAYER A.G. 28 Feb., 1969 [29 Feb., 1968], No. 10878/69. Heading C4P. The invention comprises anthraquinone dyestuffs of the general formula wherein R 1  is an optionally substituted aromatic, aliphatic, araliphatic or cycloaliphatic radical, and R 2  is H or an optionally substituted aliphatic radical e.g. by OH, CN, F, Cl, Br, sulphato, aryl or C 1 -C 6  alkoxy. Preferably R 2  is H and R 1  is an optionally substituted benzene radical. They are prepared by reacting 1 - iso - propylamino - 4 - bromo - anthraquinone 5-sulphonic acid or a salt thereof with an aromatic, aliphatic, araliphatic or cycloaliphatic amine of the formula HNR 1 R 2  where R 1  and R 2  are as above, preferably in aqueous medium in presence of copper or copper salts as catalyst. The products may be halogenated or sulphonated and any amino groups acylated. The dyestuffs colour wool, silk and synthetic polyamides in blue and green shades.
Patent GB-1460167-A (GB)
Title: Shut-off and regulator device for installation in pipelines
IPC: F16K31/122
Filed: 1974-03-12
Abstract: 1460167 Valves H SKIBOWSKI 12 March 1974 [24 March 1973 4 April 1973 11 April 1973] 10939/74 Heading F2V In a pipeline system for conveying different oil products from separate reservoirs through a single main pipe 10 connected to the reservoirs by branch pipes 11 and terminating in filling heads (22), flow control between the branch and main pipes is by a sleeve valve 1 having two spaced seats 3, 4 fixed in the housing 1 and provided with a sleeve 41 that is moved from an open position, in which apertures 46 therein are aligned with the gap between the seats, to a closed position by fluid pressure admitted via passages 44, 45 to the chambers 42, 43. In the closed position of the valve leakage is detected via a bore 47.
Patent GB-260500-A (GB)
Title: Improved apparatus for screening granular and like material
IPC: B07B1/34
Filed: 1926-04-26
Abstract: 260,500. Reynolds, M. P. April 26, 1926. Fixed sieves. - In screening apparatus, the screen is held under high tension and is vibrated by the armature of an electromagnet connected to it, the vibrations being abruptly stopped in one direction so as to produce a jarring movement in the screen. The preferred arrangement is shown in Fig. 10. The screen 2 has attached to it centrally and longitudinally a metal strip 15 for distributing the vibrations over its surface and is connected by a yoke 10 and adjustable rod to the armature 103 of an electromagnet the coils 90 of which are enclosed in a casing 100 secured to a yoke member mounted on a bridge 29 on the stationary framework. The rod passes through and is connected to a flexible diaphragm 107 and also through a packing strip 113. A rod 31 passes through the coils 90 into contact with the armature and abuts on a spring 35 the tension of which is adjustable by a rod 33 and hand-wheel 37 to force the armature away from the coil when deenergized. The jarring movements are produced by the sharp abutment of the armature against the coil core or rod 31. In modifications the screen is connected directly to the armature by a yoke of strip metal, and the armature may be placed above the coil. In a further modification. Fig. 8, a double acting device comprises an armature 62 floating between the coils 60, 61 and brought into jarring contact with adjustable stops 64 - - 67.
Patent GB-1141627-A (GB)
Title: Optical crown glass with anomalous partial dispersion
IPC: C03C3/062
Filed: 1967-03-09
Abstract: 1,141,627. Optical glass compositions. ERNST LEITZ G.m.b.H. 9 March, 1967 [3 May, 1966], No. 11117/67. Heading C1M. Optical crown glass having anomalous partial dispersion is melted from a mix comprising in Mol (wt.) percentages: SiO 2  24-52 (17-50); B 2 O 3  24À2-35 (24-35); oxide of at least one alkali metal 10À2-25À6 (6-18); Al 2 O 3  2-9 (3-13); oxide of Ta or Nb or both 0À4-7 (2-20À8) and not more than 10 of the oxides of Zn, Cd, Pb, the balance, if any, consisting of other compatible constituents and impurities. Lithium is the preferred alkali metal. A total of up to 15 mol per cent of the oxides of Zr, La and W may be included. A large number of examples are given.
Patent GB-626780-A (GB)
Title: Improvements relating to aerofoils and aerofoil blading
IPC: F01D5/14
Filed: 1947-04-25
Abstract: 626,780. Aerofoils. GRIFFITH, A. A. April 25, 1947, No. 11175. [Class 4] [Also in Group XXVI] An aerofoil suitable for use at supersonic velocities is generated from a basic section of lozenge, triangular or similar form by machining a plane surface 14 on one or both sides so that the ratio of maximum thickness to chord decreases towards the tip 12. The chord is constant from the tip 12 to the root 10. The basic section may be of elongated diamond or biconvex form, or may alternatively be of elongated triangular or plano-convex form with a single plane surface 14 machined on the side opposite the base. Alternative positions of the root 10 are indicated at 18 and 19.
Patent GB-1385270-A (GB)
Title: Apparatus for the manufacture of waveguides
IPC: H01F41/06
Filed: 1973-03-07
Abstract: 1385270 Displaceable extruder INDUSTRIE PIRELLI SpA 7 March 1973 [14 March 1972] 11183/73 Heading B5A [Also in Divisions B3 F2 and G3] Apparatus for making a waveguide comprises a machine for forming a cylindrical metal helix, an extrusion press arranged for sheathing the helix with plastics material, and drive means operable to provide relative movement between the machine and the press. By this means, feed of the helix through the press may be continued while helix formation is stopped to change supply reels, e.g. of copper strip and to weld the new strip to the old. The Fig. shows the helix 3 advancing through the press 2 which is mounted on wheels. A wheel 7 engages the helix and is rotated at a peripheral speed equal to the normal speed of helix advance by a motor 8 through a flexible drive 10. The wheel is supported on a slider 9 so that if the helix speed deviates from normal, the slider moves relative to fixed structure and operates an hydraulic pressure system through finger 18 and lever 19, whereby jack 21 is operated to move the press in the direction to maintain the normal relative speed between press and helix. Deviation is indicated by pointer 32 on scale 33. In operation, when the helix forming machine which may be of the kind described in Specification 1,385,269, is stopped, the apparatus functions to move the press over the stationary helix. When the machine is restarted, it is manually speeded up to greater than normal speed, so that the apparatus functions to return the press to its starting position, whereupon the machine is reset to normal speed.
Patent GB-1468801-A (GB)
Title: Containers
IPC: B01L3/00
Filed: 1973-03-07
Abstract: 1468801 Portable containers ACCU-TECH Ltd 27 Feb 1974 [7 March 1973] 11191/73 Heading B8D A sample container comprises a body part 1 having a top opening 4 sealingly closed by a cap or plug 5 and a bottom recessed portion 10 closed at its innermost end by a rupturable part 11 to facilitate the formation of a second aperture through which any of the contents can be withdrawn. The length of the recess is not less than one third and not more than two thirds of the length of the container. In use, a sample, e.g. blood, is inserted through the open end 4 and the plug applied. Subsequently the sample is removed by pushing a pipette through the diaphragm, the container having been inverted, Fig. 2 (not shown). Opening by rupturing a part at the base of a recess is said to prevent aeration and spillage. The body part is blow- or injection-moulded of polystyrene, polyethylene or polypropylene, and is preferably transparent. Graduations may be provided, e.g. on a label, to indicate a falling level. The rupturable part may be moulded integrally with the container body, formed by a preformed disc of film secured as by ultrasonic or heat -welding to the base of the recessed portion or formed in situ by application of a solidifiable liquid composition which is supported during setting by a temporary plate. The rupturable part is preferably 0À006 inch thick at the most. The container may have a capacity of 1¢ c.c. to 500 c.c. and preferably between 2 and 3c.c.
Patent GB-287343-A (GB)
Title: Weather guard for hatchways
IPC: B63B17/02
Filed: 1927-04-28
Abstract: 287,343. Grunbock, J. F., and Seattle Tent & Awning Co. April 28, 1927. Awnings, special applications of.-A tent-like structure crected over a hatchway is supported by tackle 30, 31 secured to derricks 13, 14 and is provided with a slot 23 extending the entire length of the ridge to accommodate the lifting tackle 35, 37. The edges of the slot are protected by chafing ropes 24 and the ends are closed by U-members 22 to which the tackles 30, 31 are secured Reference has been directed by the Comptroller to Specification 22572/12.
Patent GB-1035125-A (GB)
Title: Improvements in the construction of cubicles and like enclosures
IPC: E04H1/12
Filed: 1964-03-18
Abstract: 1,035,125. Partitions. HENRY WEIS MANUFACTURING CO. Inc. March 18, 1964 [March 21, 1963], No. 11453/64. Heading E1V. A partition 10 for a compartment structure comprises a channel member 29 having side flanges 48 to which flat side panels 18 are secured, which converge outward therefrom to be secured at the opposite ends and defining therebetween a space of substantially elongated V-shape in cross-section decreasing in width outward, and with which bridging top and bottom members 23, secured to the panels 18 and otherwise unconnected longitudinally, are substantially co-extensive. The members 23 interlock with the upper and lower edges of the panels 18. Each partition 10 has a core 32 of laminated corrugated paperboard and is closed at the outer end by a sheet metal moulding 25 connected by fittings 27 to the cover 23. In forming a compartment structure on a wall 11, to which it is adhesively secured, a channel member 34 is mounted, having side flanges 44, to which the flanges 48 of the member 29 are secured by means providing universal adjustment therebetween. The channel member 34 is held while the adhesive sets by screws 38, which may be removed afterwards.
Patent GB-1453832-A (GB)
Title: Pyrimidine derivatives
IPC: C07D239/50
Filed: 1972-08-01
Abstract: 1453832 Pyrimidine derivatives WELLCOME FOUNDATION Ltd 1 Nov 1973 [1 Aug 1972 1 Feb 1973] 11593/76 11594/76 and 5190/73 Divided out of 1453831 Heading C2C Novel compounds of Formula II wherein Z is an oxygen atom or an oxime protecting group, R is a phenoxyalkyl group optionally substituted, e.g. by one or more of C 1-4  alkoxy, C 1-4  alkyl amino or OH groups or halogen atoms are prepared via intermediates shown in reaction scheme A Further intermediates are preferred as in reaction scheme B
Patent GB-789016-A (GB)
Title: Improvements in or relating to phenthiazines
Inventor: JACOB ROBERT MICHEL
Filed: 1955-04-21
Abstract: The invention comprises phenthiazine derivatives of the general formula <FORM:0789016/IV (b)/1> and their salts (including quaternary ammonium salts), wherein the fluorine atom is in the 1- or 3-position, B is a divalent straight or branched aliphatic hydrocarbon chain of 2-5 carbon atoms and Z1 and Z2 are the same or different and are hydrogen atoms or lower alkyl groups of not more than 4 carbon atoms.  The compounds may be prepared by known processes for the preparation of 10-aminoalkyl phenthiazines, for example by treating a 1- or 3-fluorophenthiazine with a halogenoalkylamine of the formula Y-B-N(Z1)Z2, where Y is a chlorine or bromine atom, preferably in an organic solvent and in the presence of an alkaline condensation agent, or by condensing a 1- or 3-fluorophenthiazine substituted in the 10-position by a group -B-Q, where Q is the residue of a reactive ester, for example a halogen atom or a sulphuric or sulphonic ester radical, with an amine NH(Z1)Z2, or by alkylating a 1- or 3-fluorophenthiazine substituted in the 10-position by a primary aminoalkyl group -B-NH2 (obtained by reduction of the corresponding nitrile).  The compounds are used as pharmaceutical products, suitably in the form of acid addition salts such as the hydrohalides, 8-chlorotheophyllinates, phosphates, nitrates, sulphates, maleates, fumarates, citrates, tartrates, oxalates, methane sulphonates and ethane sulphonates or of quaternary salts such as methyl or ethyl iodides, chlorides or bromides or allyl or benzyl chlorides or bromides.  Examples describe the preparation of 3-fluoro-10-(3-dimethylaminopropyl)-phenthiazine and 3-fluoro-10-(3-dimethylamino-2-methylpropyl) phenthiazine).  Starting materials.  3-Fluorophenthiazine is made by the cyclization of 3-fluorodiphenylamine (obtained by decarboxylating 5-fluorodiphenylamine - 2 - carboxylic acid), with sulphur.  3 - Fluoro - 10 - (3 - chloropropyl) phenthiazine is made by the action of 3-chloropropyl-p-toluene sulphonate on the lithium salt of 3-fluorophenthiazine.  Specification 677,798 also is referred to.
Patent GB-542509-A (GB)
Title: Transparent films of polymeric materials
IPC: B29C48/05
Filed: 1940-07-12
Abstract: 542,509. Films of polymeric materials. DU PONT DE NEMOURS & CO., E. I. July 12,1940, No. 11623. Convention date, July 12, 1939. [Class 2 (ii)] Smooth transparent films are made by extruding a molten synthetic linear polymer from a slot orifice on to a moving support maintained at a temperature substantially below the melting point of the polymer. The orifice 2 is placed in close proximity, preferably within three-quarters of an inch, of the moving surface 3, and the line of flow of the polymer makes an angle of less than 90 degrees with the tangent to the surface at the point of contact. The temperature of the support. is so regulated that the polymer is solidified and cooled to a temperature at least 60 C. below its melting point within one second from the time it first begins to solidify. In the modification shown in Fig. 3, the molten polymer flows from the reservoir 6 through the valve 7 and strainer 8 to a hopper 9 provided with lips to form the extrusion slot the flow makes an angle of 45 degrees with the tangent to the drum surface 12 at the point of inter-section. An auxiliary roll 10 renders the film flat and this is then wound upon a reel 14. A knife 11 removes the thin layer of air which is swept along by the drum surface and might be trapped under the film. The drum is cooled by internal means, and materials of high boiling point such as tricresyl phosphate, chlorinated diphenyls or mineral oils are used to ensure good contact between the polymer and the drum surface.