baber/WOPTO huggingface dataset:
Patent GB-474871-A (GB)
Title: Improvements in or relating to metal embossing foils
IPC: B23K20/233
Filed: 1937-02-02
Abstract: 474,871. Compound sheet materials. ALUMINIUMWERK TSCHEULIN GES. Feb. 2, 1937, No. 3003. Convention date, Aug. 13, 1936. [Class 140] [Also in Group XXII] A composite embossing - foil comprises a thin metal foil 5 secured by a plastic adhesive layer 4 to a second metal foil 3, which in turn is secured by a non-plastic adhesive layer 2 to a paper or other backing 1. The layer 4 may be permanently plastic or it may be rendered plastic by heat during the impressing operation. Aluminium foil may be used.
Patent GB-328572-A (GB)
Title: Improved manufacture of acetic anhydride
IPC: C07C51/56
Filed: 1929-01-29
Abstract: 328,572. Imray, O. Y., (Akt.-Ges. f³r Stickstoffd³nger). Jan. 29, 1929. Acetic anhydride is produced by reacting phosgene with liquid acetic acid in presence of a suitable catalyst. Suitable catalysts are compounds of metals whose chlorides are converted to acetates by boiling with acetic acid and whose acetates easily lose acetic acid such as metals of the second and third groups of the periodic system, especially magnesium, calcium, barium, strontium, and aluminium, also metals of the iron group, and cerium and other metals of the rare earths; the compounds may be oxides, or salts of an inorganic or organic acid. In examples, acetic acid is mixed with anhydrous aluminium chloride or magnesium acetate, heated to boiling, and phosgene is passed in; the gases evolved may be passed through cooled acetic acid to recover entrained acid.
Patent GB-1591074-A (GB)
Title: Phosphorus-containing organic product and a process for its production
IPC: A23K1/175
Filed: 1978-01-25
Abstract: Highly disperse, phosphorus-containing organic product which is composed of phosphoric acid and starch and is soluble in water. The biological utilization of the product in vertebrates is good. Process for the preparation of the phosphorus-containing organic product: phosphoric acid is mixed thoroughly with starch and the mixture is dried at below 50 DEG C.
Patent GB-1369912-A (GB)
Title: Lens edge grinding machines
IPC: B24B9/14
Filed: 1972-01-22
Abstract: 1369912 Grinding lenses RODWAY OPTICAL INDUSTRIES Ltd 18 Jan 1973 [22 Jan 1972] 3141/72 Heading B3D A control means for controlling the axial movement of a lens-carrying assembly 12 during rocking of the assembly as it follows a pattern of a particular lens to be ground, comprises a control surface 5 angularly and linearly adjustable according to the size and/or thickness of the lens such that an element 14 movable with the assembly and biased to bear on the surface controls the axial movement of the assembly. The surface 5 may be straight or curved and is formed on a plate 2 adjustable about a pivot 3 on a carrier 4, the adjustment being either infinitely variable or in steps determined by a spring-loaded element 6 engaging recesses or apertures in the plate 5. Figures on the plate indicate the dropline setting. The carrier 4 is adjustable by a screw 9 on a structure 1 to the thickness of the lens, the adjustment being shown by graduations 11. The assembly is within a casing 12 rockable about a shaft 13 and is axially biased by a spring, weights or an armature 15 and a permanent or electromagnet in a bearing 16 to engage the stud element 14 with the control surface 5 so that as the assembly is rocked by the pattern corresponding to the desired lens shape, the assembly is moved axially to follow the axial shape of the lens according to the dropline setting.
Patent GB-340828-A (GB)
Title: Improvements relating to portable electrical connectors
IPC: H01R4/48
Filed: 1930-01-30
Abstract: 340,828. Couplings. WIGHT, H. D., Firwood, Eleanor Road, Bidston, Birkenhead, HAWTHORNE, J. S., 16, Wandsworth Gardens, Belfast, and SUNDERLAND FORGE & ENGINEERING CO., Ltd., Pallion, Sunderland. Jan. 30, 1930, No. 3175. [Class 38 (i).] A member carrying contacts is forked to engage a pillar on a fixed member and has the contacts so arranged that an earthing connection is made before the main circuit is completed and broken after it is broken. A forked insulating member 1 is adapted to receive the cable and has main contacts 3 on the underside and an earthing contact 2 on the upperside. An insulating mount 5 has studs 6 to engage with the contacts 3 on the connector and a pillar 10 having a nut 8 for clamping the connector firmly when it is in position. The pillar 10 is earthed and connects with the contact 2 through the nut 8. In a modification the nut 8 is replaced by a spring-loaded disc.
Patent GB-828124-A (GB)
Title: Improvements in or relating to bases for electric lamps
IPC: H01J5/56
Filed: 1958-01-30
Abstract: 828,124. Lamp caps. SYLVANIA ELECTRIC PRODUCTS Inc. Jan. 30, 1958 [Jan. 30, 1957], No. 3183/58. Class 38 (1). The base of an electric discharge lamp comprises a disc 4 of insulating material with a preferably integral boss 6 having a central aperture through which pass two flat metal contact strips 18, 20 retained in place by bent ends engaging in cavities 10, 12, 14, 16 in the disc and boss. Lead-in wires connected to the lamp electrodes are soldered or welded in the cavities 10, 12 to the contact strips 18, 20 which may be silver-plated.
Patent GB-881037-A (GB)
Title: Method for the concentration and separation of metals
IPC: B01D57/02
Filed: 1958-01-31
Abstract: 881,037. Electro--chromatography. GEIGY A.G., J. R. Jan. 31, 1958 [Jan. 31, 1957], No. 3225/58. Drawings to Specification. Class 41. The concentration of metal containing cations and anions derived from one and the same metal or the separation of different metallic - cations dissolved in an ionizing solvent which is located in the space between two electrodes and contains a concentration gradient of a complexing base is effected by the application of an electrical field of the same direction as the spatial increase in concentration of the complexing base, the ionizing solvent being hindered at least in a direction parallel to the electric field from free convection by inert ion permeable structures, all the metal containing particles being collected in the small zone of the electrode interspace in which substantially half of the metal containing particles are in the anionic form. A complexing base is defined as the particle derived from any complexing agent which is formed by separating as ions all replaceable hydrogen ions from the complexing agent. An ion permeable structure is defined as a structure which is essentially completely permeable to all ions, said structure being capable of hindering and preferably preventing free convection in the liquid. Suitable complexing agents include inorganic acids, aromatic carboxylic acids, aliphatic and cycloaliphatic acids, hydroxycarboxylic acids, aminocarboxylic acids, amino-hydroxycarboxylic acids, phenols and heterocyclic acids. The inert ion permeable structure may be made from filter paper, cardboard, cellulose acetate, asbestos fibre, glass fibre, sintered glass, porous ceramic or inert plastic fibres. Specific examples comprise a strip of filter paper or asbestos paper or a woven band of cotton, viscose rayon or acid resistant plastic fibre for example polyvinyl chloride. In a specific apparatus described, the space between the electrodes is divided by ion permeable structures into a plurality of channels each with its own inlet and outlet. In an example a solution containing cobalt nitrate, copper nitrate, sodium acetate and trisodium nitrilotriacetate is placed into the fifth to ninth channels of such an apparatus containing in all thirteen channels. On passing a current of 2 amps. at 80 volts pure cobalt and pure copper solutions emerge from the eighth and tenth channels respectively. Provision may be made for cooling, for example, by a spray of cold water in order to dissipate the heat formed during the passage of the current. The process may be carried out at temperatures between 10‹ and 100‹ C. The electrodes may be from 2-200 centimetres apart and may be constructed of platinum, graphite, nickel or stainless steel.
Patent GB-130636-A (GB)
Title: Improvements in and relating to Multiple Disc Clutches.
IPC: F16D13/54
Filed: 1918-02-26
Abstract: 130,636. Caterpillar Tractors, Ltd., (Holt Manufacturing Co.). Feb. 26, 1918. Clutches, friction.-In Weston plate clutches for traction engines &c., of the kind in which clamping-levers pivoted on a collar have lugs bear. ing against the presser-plate, such as are described in Specification 110,877, adjustment is provided by means of a nut engaging the end of a loose sleeve abutting against the collar. The clutch is operated by a collar 25 connected by toggle-links 21 to levers 20, which are pivoted on a collar 22, sliding on the sleeve 11<a>, and bear against the presser-plate 18. The clutch is engaged by springs 29 carried on bolts 27 in the collar 25 and bearing against. lugs 28 fixed on the collar 22. The collar 22 is adjusted for wear &c. by a nut 32 screwing on the sleeve 11<a> and bearing against a spacing-sleeve 31, a locldng-plate 33 and bolt 34 being provided.
Patent GB-1243591-A (GB)
Title: Process for carbonylating amines
Inventor: LASSAU CHRISTIAN
IPC: C07C273/18
Filed: 1969-01-21
Abstract: 1,243,591. Catalyst system. INSTITUT FRANCAIS DU PETROLE DES CARBURANTS ET LUBRIFIANTS. 21 Jan., 1969 [22 Jan., 1968; 21 June, 1968], No. 3409/69. Heading B1E. [Also in Division C2] A catalyst system comprises (i) a rhodium complex of formula RhXY p (CO) m  and (ii) at least one compound of formula AR'R"R"', wherein X is halogen or hydrogen, Y is a C 20 -C 10 , hydrocarbon containing at least one double bond, p and m are 0, 1, 2, 3 or 4 at least one being greater than zero, A is an atom of Group VB and R', R" and R"' taken separately each represent a monovalent hydrocarbon radical or a pair of these radicals may form a divalent hydrocarbon radical forming a ring with atom A, these radicals optionally containing, in addition to hydrogen and carbon, at least one atom of an element of Group VB. The catalyst may be used in solution, solvents specified being aromatic hydrocarbons, saturated hydrocarbons, alcohols or ethers. Catalyst systems specified are (Examples 7 to 14) Rh 2  Cl 2  (C 2 H 4 ) 4 , plus one of triethylphosphine, phenyldiethylphosphine, tricyclohexylphosphine, triphenylphosphine, ethyl bis dimethylphosphine and trimethylphosphine.
Patent GB-285426-A (GB)
IPC: C07C51/31
Filed: 1928-02-03
Abstract: 285,426. Boehringer, A., (trading as Boehringer Sohn, C. H.). Feb. 16, 1927, [Convention date]. Maleic acid; maleic anhydride. - Maleic acid and maleic anhydride are produced by catalytic oxidation with oxidizing gases of compounds of the furane series such as furane, furfuryl alcohol furfural, methyl fudural, oxymethyl furfural and pyromucic acid or mixtures of such substances or commercial raw products such as crude furfural, or mixtures of furane compounds with aromatic hydrocarbons or substances which are capable of forming compounds of the furane series; for example by thermal decomposition or oxidation, such as dehydromucic acid. The usual oxidizing catalysts may be employed, especially oxides of acid character derived from elements having several oxides, or metallic salts of such acid oxides, such as vanadic or molybdic acids, metal vanadates, molybdates, chromates, uranates, &c., with the addition if desired of activating substances such as phosphoric or boric acid. The catalysts may be used upon carriers such as pumice, clay, granulated metals (such as alu. minium), roughened metal shavings and the like The oxygen can be used somewhat in excess, and the reaction may be moderated by admixing diluting agents such as nitrogen or steam with the furane &c., which is used as vapour The reaction is effected at say 250-500‹ C. at ordinary, reduced, or increased pressure. In an example furfural is vaporized, for instance by dropping into a vessel heated to 200‹ C. through which is passed a current of a preheated mixture of 1 part oxygen and 3 parts air. The gaseous mixture is passed through a tube heated to 300- 350‹ C. charged with zinc vanadate supported on granular aluminium. The product is a mixture of maleic acid and maleic anhydride which are condensed in a well-cooled receiver, together with some water. The Specification as open to inspection under Sect. 91 (3) (a) refers to vanadium and molybdenum oxides instead of vanadic and molybdic acids and states that the materials to be oxidized may be in finely-divided state. The temperaturerange is given as 50-500‹ C. This subject-matter does not appear in the Specification as accepted.
Patent GB-419054-A (GB)
Title: Improvements in tool chucks
IPC: B23B31/12
Filed: 1933-02-04
Abstract: 419,054. Chucks. SOC. METALLURGIQUE DU RHIN, Neuf-Brisach, Haut-Rhin, France. Feb. 4, 1933, No. 3483. Void [Abridged as open to inspection under Sect. 91 of the Acts, Aug. 8, 1933]. [Class 83 (iii).] In a bevel-closing chuck the jaws are movable between two opposite sides of a double guide with parallel walls inclined to the chuck axis. In one form the jaws 3, Fig. 1, are movable between bevelled surfaces on a closing ring 4 and recesses in the body 1 having bevelled surfaces 1<a>. The ring 4 is secured to a sleeve 2 which screws on the body and carries an internal flange 9 engaging recesses 10 in the jaws to move them axially. In a modification, the flange 9 is replaced by a flange secured to a reduced end on the body and engaging internal recesses 10 in the jaws. Springs 10<1> assist in closing the jaws. In another form, the bevelled sleeve 16, Fig. 3, is rotatable on the body 1 without axial motion by being secured to a ring 14 engaging the body through a ball bearing 15, the jaws being moved axially by a sliding ring 17 engaging slots in the jaws and screwing within the sleeve 16. A spring ring tends to maintain the jaws closed. In another form a disc 11, Fig. 5, is secured to the body 1 and the jaws 3 are further guided by a conical ring 19 sliding on the stem of the disc 11 and pressed outwards by a spring 18. A spring 20 engages the inner ends of the jaws to assist in the closing action and to prevent tipping of the jaws when the chuck is empty. In another form, the disc 11, Fig. 6, is attached to a hollow stem 21 enclosing a spring 18 which presses against the end of a recess 11 in the body 1, the stem 21 also being accommodated in the recess. The pressure of the spring 18 takes up play in the jaws, and its action is limited by a pin 24 secured to the body and passing through an axial slot in the stem. In both the forms shown in Figs. 5 and 6, the jaws are operated by screwing of the ring 4 on the body 1, and in a modification of these forms a spring ring is threaded through the jaws at approximately the middle of their outer surfaces to maintain the jaws in contact with the ring 4, the spring ring sliding in a recess provided between the two parts 2, 4 of the closing ring. In a further modification of the form shown in Fig. 5, the ring 19 engages in a second row of notches 10 in the jaws.
Patent GB-980622-A (GB)
Title: Soldering materials
IPC: C04B37/00
Filed: 1961-01-30
Abstract: Compacted soldering material for joining materials difficult to wet comprises at least one of powdered titanium, zirconium or a hydrogen compound of titanium, zirconium or palladium, the particles being coated with solder or mixed with powdered solder to keep them apart and the material being compacted to 65% of the theoretical density. Several grain sizes are preferably used in the material and the hydrogen compound or titanium or zirconium, which may comprise up to 15% of the material, may have a maximum grain size of 50 microns and a preferred size of 0.1-10 microns. These grains may be coated with solder by electrodeposition or vapour precipitation.  The compacts which may be produced by rolling may be heat treated in hydrogen to 200-600 DEG  C. In an example 3% zirconium, 2% zirconium hydride and an alloy of 70% silver, 25% copper, 5% palladium are mixed in a ball mill and pressed to form a plate, the plate is positioned between parts of aluminium oxide ceramic and iron alloy and the assembly is heated in a vacuum furnace to 920 DEG  C.  Parts of ceramic or parts of ceramic glass and metal may be joined by the solder material.ALSO:Compacted soldering material for joining materials difficult to wet comprises at least one of powdered titanium, zirconium or a hydrogen compound of titanium, zirconium or palladium, the particles being coated with solder or mixed with powdered solder to keep them apart and the material being compacted to 65% of the theoretical density.  Several grain sizes are preferably used in the material and the hydrogen compound or titanium or zirconium, which may comprise up to 15% of the material, may have a maximum grain size of 50 microns and a preferred size of 0.1-10 microns. These grains may be coated with solder by electrodeposition or vapour precipitation.  The compacts which may be produced by rolling may be heat treated in hydrogen to 200-600  DEG C. In an example, 3% zirconium, 2% zirconium hydride and an alloy of 70% silver, 25% copper, 5% palladium are mixed in a ball mill and pressed at a pressure of 1500 kg. per cm2 to form a plate.
Patent GB-362230-A (GB)
Title: Improvements in or relating to electric condensers
IPC: H03J5/24
Filed: 1931-02-04
Abstract: 362,230. Condensers. EDWARDS, N. F. and DOWDING, G. V., Tallis House, Tallis Street, and AMALGAMATED PRESS, Ltd., Fleetway House, Farringdon Street, both in London. Feb. 4, 1931, No. 3529. [Class 38 (ii).] A compensated variable condenser is so associated with a switch that it is operated to alter the electrical constants of a circuit in the course of the normal movement of capacity variation. In the example, the spindle 16 of the condenser bears on its outer end an arm 20 housing three spring- pressed plungers 21 cooperating with three concentric contact segments on an insulated plate 22. The three contacts may be semicircular and mounted so that for one half of the complete rotation the plungers are in contact with the three while for the remainder of the cycle the-plungers bear on the insulated plate 22. In a modification the innermost contact may be circular with the other two semicircular and disposed so that for one half cycle contact is made with the innermost and outer segments and for the remainder with the innermost and the middle segment. In both cases the plungers are in metallic connection so that the three segments and hence coils connected thereto, are short circuited in the first example and in the second the plungers place one of two alternative inductances in circuit with the condenser. In a further modification a blade-switch is operated by a cam fixed to the end of the spindle to make connections to alternative inductances during each half rotation of the spindle. The vanes are so shaped, for example by slotting, that during rotation through 180‹ the capacity first increases according to some compensated law from minimum to maximum; at which point the switch is operated, and the capacity then decreases according to the same law to a minimum during the remaining 180‹. The condenser is particularly adapted for tuning over two wave-bands.
Patent GB-966395-A (GB)
Title: Improved projector for projecting bales of hay, straw or the like
IPC: A01D87/12
Filed: 1962-01-30
Abstract: 966,395. Mechanical throwing machines; screw conveyers. MASSEY-FERGUSON Inc. Jan. 30, 1962 [Feb. 10, 1961], No. 3563/62. Heading B8A. Bales are received successively from a baling machine 12 and engaged between two augers 88, 90, which cause them to be projected into a vehicle 18. The respective augers have oppositely helically wound flights and rotate in opposite directions. Each auger is provided with axial lost-motion taken up by a spring 94. This is to enable each auger to move rearwardly against the spring 76 and thus engage the bale along a greater length prior to commencing its projection. Alternatively, this action may be obtained by having a section of fast pitch screwthread. A link 98 between the vehicle 18 and the baling machine, in addition to the towbar 16, ensures that the augers are always lined-up in the direction of the vehicle.
Patent GB-542268-A (GB)
Title: Improvements in an apparatus for treating tyres
IPC: B29D30/68
Filed: 1941-03-17
Abstract: 542,268. Tyre-slitting apparatus. CONSOLIDATED RUBBER MANUFACTURERS, Ltd. March 17, 1941, No. 3602. Convention date, April 12, 1940. [Class 31 (i)] A pneumatic tyre 6 mounted on a stepwise rotating support has the tread slit by knives 58 mounted on a support 56 reciprocated radially of the tyre. The tyre support comprises an inner part 13 adjustable vertically by screwing within an outer part 14 according to the cross-sectional size of the tyre, and the tyre is clamped on one of its beads by a number of radially moving sectors 5 actuated by a central cone 12 mounted on a vertical rod 38 connected to the piston of an air cylinder 37, a hand wheel 35 providing adjustment of the vertical position of the cone. The tyre support 14 carries a worm wheel 19 and is rotated intermittently by means of a pinion 68 driven by a motor 64 through a worm gear 66 including straight portions 67, and the knife support 56 is reciprocated continuously from the shaft of the motor 64 by means of a crank 51 and connecting rod 52, the impact of the cutters being taken by an anvil 46 supported by an arm 45 and engaging inside the tyre.
Patent GB-740242-A (GB)
Title: Improvements in synthetic resin moulded articles and in their manufacture
IPC: B27N5/00
Filed: 1952-02-12
Abstract: Hard moulded articles having a thickness of 3 to 12 mms. and a specific gravity greater than 0.8 g./cm3, are composed of a hardened synthetic resin and wood chips of substantially the same size which have been impregnated, at least partially, with the synthetic resin, the resin content of the article being from 5 to 20 per cent by weight.  In making the articles, e.g. wall, floor or parquet sheets or tiles, stool seats, chair backs, boards for tables and desks, panels, doors for furniture, closet seats, refrigerator lids, motor body parts and three-dimensional advertisements, chip material of uniform size, e.g. sawdust or planing chips separated by oscillating sieves, is impregnated with an aqueous solution of the synthetic resin either by spraying or mixing in a rotating drum. Wetting-agents, e.g. alkyl benzene sulphonates or fatty alcohol sulphates, may be added to the binder solution.  The mixture is then moulded (see Group V) and the hot moulded article is cooled slowly and uniformly, e.g. in heat-insulated containers, and its moisture content is adjusted, e.g. by dipping in water or treating with steam or moist gases such as air and storing until moisture equilibrium is attained, i.e. until the article neither gives up moisture to nor takes up moisture from its surroundings.
Patent GB-211474-A (GB)
Title: Improvements relating to automatic current interrupters
IPC: H01H81/00
Filed: 1924-02-12
Abstract: 211,474. Nilsen, H. Feb. 13, 1923, [Convention date]. Electromagnetic interrupters; thermal switches. -In a current limiter for an electric supply, excess current causes the attraction of a contact-making armature 4 which is bodily adjustable, together with its mounting 15 and fixed contact 20, towards and away from the electromagnet for current-setting purposes. The overload relay introduces a heating resistance 6 which, after a time, deflects a diaphragm 8 so as to break the supply circuit at the contacts 9, 10 whereupon the armature falls. The circuit is again established at the contacts 9, 10 when the thermal relay cools down, and is again broken, as before, if the excess demand remains on the circuit. A signal lamp 23 may be connected across the thermal relay so as to give immediate notification that the maximum demand has been exceeded and that, after an interval, the supply circuit will be interrupted.