baber/WOPTO huggingface dataset:
Patent GB-554043-A (GB)
Title: An improved radio-phonograph employing a photo-electric pick-up
IPC: H04B1/20
Filed: 1941-12-12
Abstract: 554,043. Wireless receiving apparatus. PHILCO RADIO & TELEVISION CORPORATION. Dec. 12, 1941, No. 16059. Convention date, Dec. 13, 1940. [Class 40 (v)] In a combined phonograph and radio receiver provided with an electro-optical phonograph pick-up employing an electric lamp, switching means are provided for energizing the lamp from the local oscillator of the radio receiver during phonograph operation. The receiver comprises H.F. amplifier 12, mixer 13, I.F. amplifier 14 second detector 15, audio amplifier 16 and loudspeaker L.S. Ganged switches S ... S 7  have three radio positions, short wave, broadcast and pushbutton and the fourth position shown for phonograph operation. In this position the output 10 of a photo-electric pickup 1 of the kind described in Specification 552,019 is connected through an amplifier 34 as described in Specification 552,724 and switch S 5  to the audio amplifier 16. Switch S, connects the pick-up lamp 2 to a coil 33 coupled to the coil 23 of the local oscillator V n . Switch S 6  short circuits a resistance 28 in the anode supply lead of the oscillator to give a greater output when used for energizing the lamp 2. Switch S, open circuits one or more of the unused valves to reduce the load on the HT supply.
Patent GB-698007-A (GB)
Title: Polymeric products
IPC: C08F222/16
Filed: 1951-07-06
Abstract: Copolymers which may be cured comprise ethylene, an alkyl acrylate and a monoalkyl butene-1,4-dioic acid ester having an ethylene/acrylate mole ratio of 0.25 : 1 to 8 : 1 and a dioic acid p ester/acrylate mole ratio of 0.02 : 1 to 0.5 : 1.  The expression "alkyl acrylate" includes alkyl esters of acrylic and alpha-alkyl acrylic acids such as methacrylic acid.  Alkyl groups of up to 18 carbon atoms are stated to be useful.  The butene-1,4-dioic acid esters have the formula <FORM:0698007/IV (a)/1> where R is hydrogen or a monovalent hydrocarbon radical containing up to 18 carbon atoms and R1 is a monovalent hydrocarbon radical containing up to 20 carbon atoms.  Specific examples are methyl, ethyl, propyl, butyl, decyl, dodecyl and octadecyl hydrogen maleates and fumarates.  The copolymers may be made by bulk or solution batch, semi-continuous or continuous polymerization methods.  In a batch method, a pressure vessel is charged with the acrylate, the dioic acid ester, reaction medium and a catalyst, cooled to 0 DEG  C. or lower, swept with oxygen-free nitrogen and evacuated.  The vessel is then pressured with ethylene and heated while being agitated, the pressure being maintained by periodic repressuring with ethylene.  If insoluble in the medium, the copolymer is isolated by filtration, followed by steaming, washing and drying.  If soluble, the solvent is removed by steam or vacuum distillation.  Suitable reaction media are t-butyl alcohol and benzene.  Chain transfer agents, such as methyl, ethyl and propyl alcohols, may also be used as solvents. Specified catalysts are alpha, alpha1-azodiisobutyronitrile, alpha, alpha1 - azobis (alpha, gamma - dimethyl valeronitrile, 1,11 - azodicyclohexane-carbonitrile and other azo compounds, azines, oximes, amine oxides, organic peroxides, peroxy salts, hydroperoxides and percarboxylates. Pressures up to 3000 atmospheres and temperatures of 0 DEG  to 250 DEG  C. may be used in the reaction, the preferred values being 400-1500 atmospheres and 60 DEG  to 160 DEG  C.  The copolymers are generally pliable, fairly soft, soluble materials, resistant to moisture, heat and oxidation.  They may be converted to insoluble, tough, elastic materials by curing with compounds reactive with carboxyl groups, e.g. polyvalent metal oxides and hydroxides, salts of these hydroxides with weak acids, polyfunctional isocyanates, amines and oxirane compounds. Accelerators, anti-oxidants, sulphur, fillers, e.g. carbon black, barium sulphate, clay, calcium carbonate or sulphate, kaolin, titanium oxide, asphalt, factice and polyisobutylene; lubricants, e.g. polyethylene glycol or magnesium stearate; pigments, stabilizers and blowing agents may also be added.  The cured copolymers are highly resistant to attack or degradation and find use as coated fabrics and self-supported films for upholstery, mechanical goods, flooring, foot-wear, wire insulation and sponge products.
Patent GB-380411-A (GB)
Title: Improvements in collapsible push cars or the like
IPC: B62B7/02
Filed: 1932-06-07
Abstract: 380,411. Baby carriages. WILKINSON, E., 5, Bagshot Road, Bush Hill Park, Enfield, Middlesex. June 7, 1932, No. 16089. [Classes 108 (i) and 108 (ii).] A push car or the like comprises a U-shaped frame suitably mounted at its free ends on travelling wheels and a supporting member or rest bar pivoted to the frame and adapted to be closed on to the frame. A U-shaped frame a having a wheeled axle b is provided with a U-shaped rest bar e pivoted in a bracket d on the frame and adapted to be folded against, and clipped to, the frame when the baby carriage is in use. An upholstered seat h is pivoted to the frame at g and provided with a flexible back i secured at its upper end to a sliding bar f by means of which the seat is folded into the plane of the frame when desired. The wheels c may be mounted on stub axles foldable on to the frame. In another form the upper part n of the frame a may be pivoted and arranged to serve as a support when the baby carriage is arranged for the occupant to be in recumbent position. In another form the seat back may be of rigid material and the support e replaced by one pivoted to the seat.
Patent GB-218669-A (GB)
Title: Improvements in or relating to perforating devices for sheet material
Filed: 1924-07-04
Abstract: 218,669. British Tabulating Machine Co., Ltd., (Assignees of Braitmayer, O, E.). July 5, 1923, [Convention date]. Selective perforating machines.-A machine for punching holes representing consecutive numbers, with a row of punches, a common reciprocating punch actuator, and a plurality of selectors one to each punch movable singly to select the punches, has an operative connection between the punch-operating member and the selectors whereby a different selector is automatically brought into engagement with a punch at each of a series of punching operations. The machine is described as an attachment to a record-card printing press. The attachment as a whole is slidably adjustable on side rails 10 of the press for the purpose of varying at will the position of the punch mechanism, for instance, in relation to the columns of a record card. The supports for the attachment include a bottom plate 11, a top plate 12, and a die-plate 13, a clearance, being allowed for the passage of card stock 14. Brackets 15 carried by the top plate 12 support cross shafts 16, 17 which pass through slots in the side plates 18 of the attachment. The punches 23 are guided in openings in the top plate 12 and in a plate 24, and are provided with collars 25 which are engaged by restoring bars 26 carried by the. plates 18. The punch bed is adjustable longitudinally of the guides by a rack and pinion 20, 21. Selector levers 28 are pivotally mounted on shafts 27 supported by the plates 18 and are provided with upstanding lugs 29 disposed above which are selector shafts 30. Pins 31 are arranged spirally on the shafts 30 which may be turned bv hand knobs 41 for setting up any desired number thereon or for zeroizing. Number dials 42 on the shafts 30 indicate the setting of the shafts. The plates 18 are depressed to cause the selected pins 31 to actuate the punches by means of linkage 35, 36 connected to the mechanism of the printing press, such linkage acting through eccentries 33 on the shafts 16, the straps of the eccentrics being connected to the plates 18 by pivoted arms 34. The eccentrics are rocked counterclockwise to depress the plates and the right-hand or units shaft 30 is fitted with a ratchet wheel which by means of a ratchet pawl and lever 37 is advanced one step on the return to normal of the linkage 35, 36. Suitable transfer mechanism is fitted between the shafts 30 for the denominations and the. selecting pins are thus advanced automatically to select consecutive numbers. Clutches operated from a button 44 disconnect the transfer mechanisms while zeroizing or setting any particular combination. Interchangeable slides 49 carrying particular sets of selecting pins 51 can be inserted in slots in the side plates 18 for gang punching. Specification 202,894 is referred to.
Patent GB-775938-A (GB)
Title: Manufacture of flexible cellular material
IPC: B29C44/28
Filed: 1955-06-06
Abstract: <PICT:0775938/IV(a)/1> A porous article of a reaction mixture of a polyisocyanate, an active-hydrogen containing polymeric material, and water is cast in moulds 1 or on a belt having raised edges, the moulds or the belt being inclined at an angle of from 1 to 10 degrees from the horizontal.  This is stated to provide an improved article. The pourer 2 may be oscillated transversely or longitudinally or it may be stationary or extend across the width of the casting surface. Alternatively several pourers may be used.  After the reaction mixture has completed its expansion, the casting surface is returned to the horizontal and the material is cured.  The polymeric material may be polyesters, polyesteramides, hydroxyl-containing polyethers and mixtures of two or more of these.  The polyisocyanates may be hexamethylene di - isocyanate; para - phenylene di - isocyanate; 4,41 - diphenylene di - isocyanate; 1,1 - naphthylene di - isocyanate; 4,41 - diphenylene methane di - isocyanate; the tolylene di - isocyanates; 4,41 - diphenyl ethyl di-isocyanate; 3,31 - dimethyl 4,41 - diphenyl di-isocyanate; 3,31 - dimethoxy 4,41-diphenyl di - isocyanate; tri - isocyanates; tetraisocyanates or polyisocyanates or mixtures thereof as described in Specifications 687,055, [Group IV (b))] and 694,982 respectively.  In an example 50 parts (all parts by weight) of a polyester and 25.8 parts of 2,4-tolylene diisocyanate are mixed immediately prior to casting with a mixture comprising 50 parts of polyester, 0.9 parts of water and (as a catalyst) 1.0 parts of a butyraldehyde butylamine condensation product.  The polyester may be prepared from 80 mol. per cent ethylene glycol, 20 mol. per cent propylene glycol and adipic acid.  Pigment fillers, reinforcing agents, colouring agents, antioxidants and accelerators may be added.
Patent GB-1515463-A (GB)
Title: Electrophoretic method and machine for manufacturing a plate-like material made from agglomerated particles and in particular ceramic products obtained thereby
IPC: B28B11/12
Filed: 1976-04-21
Abstract: 1515463 Making sheets by electro-phoresis AGENCE NATIONALE DE VALORISATION DE LA RECHERCHE 21 April 1976 [25 April 1975] 16182/76 Heading C7B A sheet of agglomerated solid particles (e.g. clay) is deposited continuously electro-phoretically from a suspension using a pair of opposed moving electrodes of like charge on to which the solid is deposited, and from the nip of which, at which their surface speeds are equal, the sheet, comprising the unified deposits from both electrodes, is discharged. In Fig. 4, anodic rollers 30, 31 having Zn surfaces form a nip, with a stationary hollow curvilinear triangular cathode arranged above the upper part of the nip. Suspension is discharged via perforated pipe 28 and flows upwards and into the hollow cathode for regeneration and recycling via port 46. Seals at the ends of the cathode abut the rollers to prevent leakage of suspension. The product sheet has balanced internal stresses when to the opposed curvatures of the rollers are equal, although unequal diameter rollers may be used to incorporate a uni-directional curved stress. An alternative embodiment uses converging endless belt electrodes. The sheet may be withdrawn by an endless belt conveyer. The axial separation of the rollers may be adjustable.
Patent GB-1273267-A (GB)
Title: Photographic process for producing electrical components
IPC: H01G13/00
Filed: 1969-03-28
Abstract: 1,273,267. Resistors; capacitors; printed Circuits. ITEK CORP. 28 March, 1969 [1 April, 1968; 16 April, 1968], No. 16264/69. Headings H1M, H1R and H1S. [Also in Division G2] A photographic process for making substantially continuous electrically conductive metal images comprises image-wise exposing a layer of photoconductive material on a support to form a reversible latent image and developing the image with a developer comprising metal ions and a reducing agent so as to deposit sufficient metal to produce the electrically conductive image. The photoconductive material is preferably titanium dioxide, but may be zinc oxide, zirconium dioxide, germanium dioxide, indium trioxide, tin oxide, barium titanate, cadmium sulphide, zinc sulphide, tin disulphide or cadmium selenide. The metal ion may be Ag<SP>+</SP> deposited from a viscous layer of silver nitrate on immersion in a solution of Metol containing 60 g/l. citric acid. Other ions deposited may be Hg<SP>++</SP> pb<SP>++++</SP> Au<SP>+++</SP> Pt<SP>++++</SP> Ni<SP>++</SP> Sn<SP>++</SP> Pb<SP>++</SP> Cu<SP>+</SP> Cu<SP>++</SP>, and alternative reducing agents are listed. Capacitors may be made by applying the process on a substrate comprising aluminium, nickel, copper titanium or chromium affixed to a silicon dioxide or glass base which forms one electrode, the deposited layer forming the other layer. Alternatively the process may be applied to each side of a polyester film, the capacity being between the deposited layers. Printed circuits may be made by applying the process on a substrate of wood, rag or pulp paper, polyethylene terephthalate, celluloseacetate, cloth, glass or oxidized silicon. The conductor pattern may be strengthed by electroless or electrolytic deposition. Resistors are provided by parts of a printed circuit of reduced width which received a smaller amount of energy during the exposure step whereby fewer metallic ions are deposited.
Patent GB-364502-A (GB)
IPC: C23C16/14
Filed: 1931-06-04
Abstract: Refractory metals, e.g. tungsten, are coated with rhenium by heating to a temperature above 2000 DEG  C. in the vapour of a rhenium compound, e.g. a rhenium halide, at atmospheric pressure in an atmosphere of neutral or neutral and reducing gas.  A single crystal wire of tungsten heated in the vapour of a rhenium compound in an atmosphere of hydrogen and nitrogen is coated with rhenium which also grows as a single crystal and the coated wire may be used as a filament in an electric incandescent lamp.
Patent GB-915328-A (GB)
Title: Improvements in or relating to methods and apparatus for coating paper webs
IPC: B05C1/08
Filed: 1960-05-09
Abstract: 915,328. Coating webs. BELOIT IRON WORKS. May 9, 1960 [Sept. 25, 1959], No. 16339/60. Class 140. A method of coating a paper web 31 comprises guiding the web through a coating liquid 32 on a roll 30 and doctoring the web at 34 to smooth the coating, the web passing through a restricted opening 37 in the liquid to press liquid into the web. The opening 37 is formed between a member, e.g. a fixed bar 35 which may be perforated at 38, and the roll 30, the top of the bar 35 being rounded (see Fig. 7, not shown). A plurality of bars 35 may be provided, spaced apart in the direction of travel of the web, or the bar 35 may have an upstanding flexible blade in its upper surface engaging the roll 30. Alternatively, the pressing member may comprise a rotatable roll supported with its axis parallel to that of the roll 30. The roll 30 and the container 33 are separable vertically. The doctor 34 comprises a blade and a shield 36 providing a path for returning excess liquid. End wipers 24 contact the roll 30, and the container 33 has an inwardly directed flange 16.
Patent GB-318315-A (GB)
Title: The manufacture of ortho-hydroxy-benzyl-amine arsinic acids and their aroyl-derivatives
IPC: C07F9/74
Filed: 1928-06-05
Abstract: 318,315. Carpmael, A., (I. G. Farbenindustrie Akt.-Ges.). June 5, 1928. 2-Hydroxbenzylamine-5-arsinic acids and their aroyl derivatives.-2-Hydroxy-benzylaroylamine 5-arsinic acids of the formula and Y indicates hydrogen or a monovalent substituent are prepared either by (1) condensing a 1-hydroxy-4-phenylarsinic acid compound with a hydroxymethylaroylamine of the formula OH.CH2.NX, or (2) replacing the amino group of a 5-amino-2-hydroxy-benzylaroylamine by the arsinic acid group in known manner. The starting material for the first process may be obtained by replacing the nitro group of a p-nitrophenol compound by the arsinic acid group in known manner, whilst the starting material for the second process may be prepared by condensing a p-nitrophenol compound with a hydroxymethylaroylamine and reducing; in each case therefore a p-nitrophenol compound may function as starting material. The final products, and the corresponding 2-hydroxy-benzylamine - 5 - arsinic acids obtained by saponification, are useful therapeutically or in the manufacture of therapeutic compounds. According to the examples, (1) 2-hydroxy-benzylbenzoylamine-5-arsinic acid is prepared by condensing p-hydroxyphenylarsinic acid with hydroxymethyl-benzoylamine in the presence of sulphuric acid, or by diazotizing 5- amino-2-hydroxy-benzylbenzoylamine and treating with sodium arsenite and copper sulphate; boiling the product with caustic soda gives the 2-hydroxybenzylamine-5-arsinic acid; (2) 2-hydroxy-benzylphthalimide-5-arsinic acid results when 4-hydroxyphenylarsinic acid is treated with hydroxymethylphthalimide in the presence of sulphuric acid, or when p-nitrophenol is condensed with hydroxymethyl-phthalimide in the presence of sulphuric acid, and the product reduced with iron and acetic acid, diazotized and treated with sodium arsenite; by saponification it yields the product of the preceding example; (3) 2-hydroxy-3-methylbenzylphthalimide-5-arsinic acid and the corresponding 2 - hydroxy - 3 - methyl-benzylamine-5- arsinic acid are obtained from either 3-methyl-4- hydroxyphenylarsinic acid or 1-hydroxy-2-methyl- 4-nitrobenzene by the methods of the preceding example; (4) 3-chloro-2-hydroxy-benzylphthalimide-5-arsinic acid is prepared by the sulphuric acid condensation of 3-chloro-4-hydroxyphenylarsinic acid with hydroxymethyl-1-phthalmide.
Patent GB-1066110-A (GB)
Title: Closure plugs for closing the ends of drain pipes and conduits
Inventor: CARVER LEONARD JOHN
IPC: F16L55/132
Filed: 1965-04-20
Abstract: 1,066,110. Pipe closures. CARVER & CO. (ENGINEERS) Ltd. March 25, 1966 [April 20, 1965], No. 16430/65. Heading F2P. [Also in Division G1]  A drainage pipe closure plug for sealing a pipe during testing, servicing or repair, comprising a main circular aluminium alloy or plastics plate 1, an angle-section compression ring 22 spaced axially from said plate, and a peripherally-ribbed resilient sealing ring 4, which is adapted to be compressed and expanded radially outwards into contact with the pipe wall 2 on tightening clamping studs (25), Figs. 2 and 3 (not shown), extending between said axis plate and peripherally-spaced plates (26) welded to said compression ring, is characterized in that the main plate is provided with two diametrically opposite ports 8 and 9 adjacent the plate periphery, said ports having closure means 16 and 10 respectively. The closure means 16 of port 8 comprises a threaded tube clamped in said port by nuts 17 and 19 and closed at its end by a screwed cap 20. The closure means 10 comprises plates 11, 11<SP>1</SP> either side of a resilient ring 12, said means clamping a threaded tube having an end-cap 15 in said port. A damaged section of a pipeline may be isolated by fitting plugs in adjacent pipe sections. Flow in the pipe-line may be maintained by positioning the plugs such that ports 8 are at the bottom and connecting a hose between the threaded tubes of the closures 16 after removal of the end cap 20. In testing for leaks, the section under test is closed by the plug, and water is introduced through the tube 13 after removal of the cap 15, air being allowed to escape from port 8 on removal of the cap 20. Alternatively, a smoke cartridge may be introduced into the pipe through the upper port.
Patent GB-457805-A (GB)
Title: Improvements relating to reflecting signals
IPC: B62J6/20
Filed: 1935-06-06
Abstract: 457,805. Optical reflectors. LUCAS, Ltd., J., and HANMER, F., Great King Street, Birmingham. June 6, 1935, No. 16446. [Class 97 (i)] In a cycle reflector comprising a light metal case b and a glass reflector a, the back of the case carries a reinforcing plate d from which diametrically opposite tongues e, Fig. 2, are cut and folded over to form a double thickness at the centre of the plate, the ends of the tongues being shaped to hold the polygonal head h of the mounting screw g against rotation. The plate d may be held against rotation by projections f in the rear side of the case.
Patent GB-558386-A (GB)
Title: Process for the preparation of anthraquinone derivatives
IPC: C09B1/28
Filed: 1941-12-22
Abstract: 558,386. Dyes. SANDOZ, Ltd: Dec. 22, 1941, No. 16513. Convention date, Dec. 24, 1940. [Classes 2 (iii) and 15 (ii)] Dyes, suitable for colourizing organic solvents, petroleum, oils and plastic masses and for dyeing cellulose acetate artificial silk, are obtained by heating with methylamine or #-hydroxyethylamine (2 mols.) a compound of the general formula or its leuco-derivative (1 mol.), wherein of Y and Z at least one represents halogen and the other represents H or halogen. The condensation may be effected in presence of a diluent, e.g. water or alcohol, and a small addition of boric acid may be advantageous. In examples (1) a mixture of 6-chloroquinizarin and its leuco compound is heated with methylamine in alcohol at 80‹ C. and the product is oxidized by blowing air over it, some pyridine being first added if necessary ; the product dyes cellulose acetate artificial silk blue ; (2) leuco- 6-chloroquinizarin is heated with #-hydroxyethamine in alcohol at 80‹ C. ; the product, oxidized if necessary with air, dyes cellulose acetate artificial silk very bright greenish blue ; (3) leuco-6:7-dichloroquinizarin is heated with #-hydroxyethylamine in alcohol at 80‹ C.; the product, oxidized if necessary as in (1), colours organic solvents and cellulose acetate artificial silk brilliant greenish blue. Specifications 15355/08, [Class 2], and 268,891, [Class 2 (iii)] are referred to. The Specification as open to inspection under Sect. 91, comprises also the manufacture of dyes by heating with ammonia or any alkyl- or hydroxyalkyl-amine any compound of the general formula wherein W and X represent replaceable substituents, e.g. amino, nitro, hydroxy or methoxy groups or halogen atoms, and Y and Z have the same significance as above. Additional diluents specified are methanol, amyl alcohol and aromatic or hydroaromatic hydrocarbons and the reaction may be effected in the presence of an alkali metal hydroxide, bicarbonate, carbonate or acetate or a copper salt. Additional examples relate to the reaction of (a) 6-chloroquinizarin or 6:7-dichloroquinizarin with aqueous ammonia in presence of sodium hydrosulphite ; (b) 6-chloro-1-hydroxy-4-aminoanthraquinone or 6- chloro-1:4-diaminoanthraquinone with methylamine in alcohol ; (c) leuco-6-chloroquinizarin with #-hydroxyethylamine (1 mol.) and methylamine (1 mol.) in alcohol, followed by oxidation; (d) leuco-6-chloroquinizarin or leuco-6:7- dichloroquinizarin with amylamine in amyl alcohol in presence of boric acid ; (e) leuco-6:7- dichloroquinizarin with aminodihydroxypropane in alcohol, followed by oxidation ; (f) 6-chloroquinizarin with #-hydroxyethylamine. This subject-matter does not appear in the Specification as accepted.