baber/WOPTO huggingface dataset:
Patent GB-387830-A (GB)
Title: Improvements in and relating to film printing apparatus
IPC: G03B27/16
Filed: 1932-01-25
Abstract: 387,830. Photographic printing- apparatus. BRITISH THOMSONHOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Bradford, A. J. ; 12328, Wyoming Avenue, Detroit, Michigan, U.S.A.) Jan. 25, 1932, No. 2244. Convention date, Jan. 24, 1931. [Classes 98 (i) and 98 (ii).] Apparatus for varying the aperture in filmprinting machines according to the density of the negative comprises an aperture varying member, normally held from movement and a setting lever under the control of the operator, resiliently connected to the aperture varying member, means controlled by the film being provided for releasing the aperture varying member. In the form shown the aperture is varied by an iris diaphragm 6 controlled by a disc 10 on a shaft 9. The disc is looked by a detent 14 mounted on the core 17 of a solenoid 16. The shaft 9 also carries a freely mounted setting lever 24 moving over a scale 25 and capable of being locked in position by a detent 26 entering holes 27 in the scale 25. Two arms 30, 31. loosely mounted on the shaft 9 and connected to the shaft by spiral springs 34, 35 carry cross pieces 32 engaging the lever 24 and an ear 11 on the disc 10. If the lever 24 is set in any position by the operator one or other of the springs 34, 35 is tensioned. The film is notched as at 22 to cause a roller 21 to close the circuit of the solenoid 16 when a change of aperture is required, the detent 14 being then withdrawn from the disc 10 permitting this to rotate till it reaches the position set by the lever 24. The apparatus may be applied to contact printing, the diaphragm 6 being then located between the source of light and the films and the width of the negative film being slightly greater than that of the positive blank to allow for the provision of the notches 22.
Patent GB-1531621-A (GB)
Title: Cationic electrodepositable compositions
IPC: C08G18/80
Filed: 1976-01-21
Abstract: 1531621 Cationic electrodepositable compositions PPG INDUSTRIES Inc 21 Jan 1976 2329/76 Heading C3B [Also in Division C7] An aqueous dispersion suitable for use as a cationic electrodepositable composition comprises (A) a synthetic adduct which is the reaction product of a primary and/or secondary amine and an epoxy group containing resin, said adduct being solubilized with acid to provide cationic groups, and (B) a blocked organic polyisocyanate stable at ambient temperature in the presence of said adduct and reactive with said adduct at elevated temperatures. Component (A) is preferably an acid-solubilized adduct of a secondary amine and a polyglycidyl ether of a polyphenol, e.g. bisphenol A. The polyglycidyl ether may be carboxylic acid modified preferably with pelargonic acid. The organic polyisocyanate may be blocked with an alkanol, a cyclo-alkanol, an aromatically-substituted alkanol, a phenol, an oxime or a tertiary hydroxylamine. The composition may contain pigments, e.g. iron oxides, lead oxides, strontium chromate, carbon black, TiO 2 , talc, barium sulphate, Cd yellow or red and chromic yellow. The aqueous composition preferably has a pH of 3-9 for electro-deposition. After cathodic electro-deposition on a suitable substrate, e.g. steel, Al or Cu, the coatings are cured at elevated temperatures, e.g. 250-600‹ F. In the examples, zinc phosphated steel panels are cathodically coated using the above aqueous compositions.
Patent GB-290189-A (GB)
Title: Vessels having an acid-proof lining
IPC: B65D85/84
Filed: 1928-01-25
Abstract: 290,189. I. G. Farbenindustrie Akt.- Ges. May 9, 1927, [Convention date]. Addition to 283,964. Linings. - Acid-proof linings for vessels are formed from slabs of silicon alloys containing not less than 50 per cent of silicon. Copper-, chromium-, manganese-, and tungsten-silicons are mentioned as examples.
Patent GB-1335173-A (GB)
Title: Manufacture of unsaturated aliphatic alcohols
IPC: B01J23/86
Filed: 1972-01-19
Abstract: 1335173 Unsaturated aliphatic alcohols NEW JAPAN CHEMICAL CO Ltd 19 Jan 1972 [23 Jan 1971] 2484/72 Heading C2C [Also in Division B1] An unsaturated aliphatic alcohol is prepared by reducing at least one unsaturated aliphatic aldehyde, acid or ester with hydrogen under a hydrogen pressure of at least 100 kg/cm<SP>2</SP> and having a linear velocity of from 0À1 to 20 cm/sec, at a temperature of from 120‹ C. to 350‹ C. and in the presence of a solid metal oxide catalyst comprising (a) 100 parts by weight of a mixture of aluminium oxide and cadmium oxide in a weight ratio of 50 : 2À5-50, and (b) 3-50 parts by weight of chromium oxide. Part (less than 50%) of the cadmium oxide may be replaced by zinc oxide or iron oxide, or (less than 20%) by copper oxide. Examples describe the preparation of unsaturated aliphatic alcohols from whale oil fatty acid, oleic acid, and a mixture of 2-ethyl hexenal and 2-ethyl-4-methyl pentenal.
Patent GB-1408572-A (GB)
Title: Method of producing a boron nitride coating on an article
IPC: C04B41/50
Filed: 1972-01-19
Abstract: 1408572 Sintered boron nitride coatings LUCAS INDUSTRIES Ltd 19 Feb 1973 [19 Jan 1972] 2525/72 Heading C7D A coating of BN is formed on an article e.g. a graphite hot pressing die, by coating the article with a mixture of BN powder and a tack free polymeric binder which does not form a carbon deposit on thermal decomposition in a carrier liquid. The binder and carrier are then removed e.g. by heating, to leave a sintered BN coating. The binder may be "ACRONAL" (Trade Mark) or a solution of cellulose nitrate in ether. The carrier liquid may be water or acetone.
Patent GB-278229-A (GB)
Title: Improvements in connection with the heating and cooling of buildings
IPC: F24D3/12
Filed: 1927-01-28
Abstract: 278,229. Musgrave, J. L., and Crittall & Co., Ltd., R. Jan. 28, 1927. Radiators.-In apparatus for heating or cooling buildings by means of pipes A embedded in the walls, blocks D are provided between the pipes and the temporary shuttering B. The pipes A may be held against the blocks D whilst the concrete is being filled in by means of bars F, which also serve to reinforce the concrete. Alternatively the pipes may be held by wires d<1>, Fig. 3, which may be embedded in the blocks, or secured to the shuttering by nails or screws.
Patent GB-675739-A (GB)
Title: Improvements in or relating to methods of sealing electrical components in metal casings
Inventor: STRAY WILLIAM JOHN
IPC: H01G4/224
Filed: 1951-02-01
Abstract: 675,739. Condensers. STANDARD TELEPHONES & CABLES, Ltd. Feb. 1, 1951, No. 2541/51. Class 37. [Also in Group XXII] A method of sealing an electrically insulating bush 8, 9 to a metal case containing an electrical component, e.g. a silver mica condenser 7, a terminal lead 5, 6 from which passes through the bush, comprises providing a groove 12, 13, on the exterior of the bush, coating said groove with metal, fitting the bush so that the edges of an aperture provided in the metal case fit into the groove, and sealing those edges into the groove by soldering. The metal case is of the type disclosed in Specification 621,903. As applied to a multi-unit tubular condenser, Fig. 4, a cylindrical ceramic end bush 19 is formed with a peripheral metallized groove 22 and inserted in one end of the insulation lined tubular outer metal case 23 of the condenser, the said end being then spun over into the groove at the same time as the edges of a metal end cap is spun over the other end of the case, the two ends then being sealed by soldering.
Patent GB-1138804-A (GB)
Title: Composite electric signal limiter
Inventor: MILLWARD JOHN DAVID
IPC: H04N5/16
Filed: 1967-01-18
Abstract: 1,138,804. Limiters. RANK ORGANISATION Ltd. 18 Dec., 1967 [18 Jan., 1967], No. 2616/67. Heading H3T. A current is limited between first and second levels in two stages:-firstly the current is backed against a constant direct current representing one level to limit the current thereto, and secondly the resulting partly limited current is backed against a second constant direct current respresenting the difference between the two levels. The invention is described as applied to limiting the combined video signal and blanking pulses in television receiving or transmitting equipment. In the figure the combined signal is applied at 2 in combination with a direct current representing the lower level at 4. When the combined signal is below this lower level diode 10 will be cut off and the signal will flow to earth through diode 8. Meanwhile a constant current at 14 representing the difference between the levels will flow through transistor 18 and give a constant output across the load 20. As the signal increases between the two levels, diode 10 will pass a corresponding current and the transistor current will fall in proportion. When the input equals the current supplied at 14, the transistor will cut off and further increase in the input will not affect the output. Diodes 8 and 16 cut out transients due to the capacitance of diode 10 and the transistor when the input crosses the limiting levels. The blanking pulses can be introduced at 6. The limiting levels can be varied by adjusting the currents supplied to 4 and 14.
Patent GB-668821-A (GB)
Title: Improvements in or relating to methods of casting moulded articles
Inventor: HOPKINS JACK ROWLAND
IPC: B22C23/00
Filed: 1947-01-28
Abstract: 668,821. Casting. POLYGRAM CASTING CO., Ltd. Jan. 21, 1948 [Jan. 28, 1947], No. 2642/47. Class 83 (i). Moulds.-A thin-walled mould M is externally supported by being embedded in coarse granular material during the pouring of the metal. A container 2 supported on a base 1 may be supplied with granular material, such as granulated steel by a bucket 11 suspended from a shaft 8 extending between the ends of levers 5. By means of handles 15, the levers, which are counterweighted at 7, may be operated to lift the bucket to a position over the container 2 and then tilted to discharge the granulated material. Initially, the container 2 is partially filled, the mould or moulds inserted and covered by a cover P while the filling of the container is completed from the bucket 11. A current of air is circulated through the container 2 by way of pipes 27 and 28, the external circuit including a heater and a cooler so that the temperature of the granulated material and therefore the rate of cooling of the casting may be controlled. After the completion of' the casting operation, a handle 21 is operated to release a latch 20 whereupon a counterweight 26 serves to open a door 16 in the side of the container 2 to discharge the granules into the bucket 11, sufficient being left to support the next mould or batch of moulds. In the form shown, the apparatus comprises a number of containers and associated buckets arranged side by side, all the buckets being actuated by a common shaft 8. The mould M is preferably made from a mixture of sand .and a thermo-setting resin binder, but may comprise a siliceous coating on a wax pattern which is afterwards melted out.
Patent GB-175875-A (GB)
Title: Improvements in veterinary appliances for embryotomy and like purposes
IPC: A61D1/10
Filed: 1921-01-20
Abstract: 175,875. Thygesen, J. P. N., S÷rensen, A. T., and S÷renson, N. P. Jan. 20,1921. Ecraseurs; obstetric appliances.-Relates to veterinary instruments for embryotomy &c. of the kind comprising a flexible saw to be reciprocated in a guide comprising two interconnected parallel tubes at one end of which the saw forms a loop. The guide tubes a, b have beaded ends c, d and are connected integrally at their ends and by adjustable clamps j, k intermediately. A handle may be secured at the outer end or to the lower clamp k and a hook n for holding a part to be operated on may be formed on the upper clamp j. The saw preferably consists of a cord w, Fig. 4, formed by twisting four piano wires v in pairs in one direction and then twisting the two pairs together in the opposite direction. The flexible saw is formed with spherical ends q and is secured by clamping- screws t to handles r so that it may be reciprocated in the guide-tubes. In modifications, the guidetubes may be telescopic or may be in sections joined by flexible joints such as helical springs z, Fig. 5.
Patent GB-266318-A (GB)
Title: Improvements in or relating to electric railway signals
IPC: B61L23/16
Filed: 1927-01-29
Abstract: 266,318. Siemens & Halske Akt.-Ges. Feb. 22, 1926, [Convention date]. Electrical systems, automatic; lamp signals.- In a track relay system in which the track relays 24, 25 have windings 31 adapted to be shunted by a vehicle 37, 38 occupying an insulated track section and also have auxiliary windings 32, the signals are given by colour discs moved in front of the signalling lamp and the auxiliary windings are connected in series with the signalling lamp of the section ahead when that lamp indicates danger. By this arrangement the signal of a section continues to show danger if the signal of the section ahead fails to show danger when entered by the train. The red " danger" discs 14, 15 and green "clear" discs 16, 17 are carried by pivoted sectors 12, 13 preferably directed operated by the armatures 22, 23 of the track relays, the discs being balanced to facilitate operation. The lamps used preferably have elliptical reflectors 4, 5 with small orifices, allowing small easily operable sectors to be used, and also perrnitting the use of two lamps in parallel, placed at the foci of the reflector, one lamp 9, 11 of each signal serving as a reserve connected directly across the supply mains 35, 36. The circui.tcontrolling contacts are preferably operated by the sectors, and are shown as carried by arms 26, 27. As shown, winding 31 of the track-relay of section 2 is shunted by the vehicle wheels 37, 38. The armature of the relay is dropped so that disc 14 is in place to indicate danger. The lamp 8 is then in series, over contacts 30, with the winding 32 of the track relay of section 1, not shewn. Section 3 being unoccupied, its track relay is energized, and the disc 17 is in place to indicate " clear." The lamp 10 is thus energized over contacts 28, and the auxiliary winding 32 energized over contacts 29. When the wheels 38 enter section 3, its track relay winding 31 is de-energized, and the sector 13 falls so that the disc 15 is in place to show " danger." The lamp 10 is then energized over wire 40, contacts 30, wire 34, and winding 32 of the track-relay of section 2. So long, however, as winding 31 of this relay is shunted by the wheels 37, disc 14 continues to indicate danger. When the wheels 37 leave section 2, the relay of section. 2 operates to give a clear signal by means of disc 16. Should lamp 10 have failed, or disc 13 have failed to fall to danger position closing contacts 30, the winding 32 of the track-relay section 2 remains de-energized, and disc 14 continues to indicate danger. Where automatic train-stopping devices are provided in addition to the signals, contacts may be provided so that the auxiliary relay of a section only is re-energized when both the signal and train-stopping device of the section ahead have moved to the danger position.
Patent GB-905397-A (GB)
Title: Improvements in electrically controlled character printing apparatus
IPC: B41J5/46
Filed: 1959-01-26
Abstract: 905,397. Typewriters &c. DIRK, G. Jan. 26, 1960 [Jan. 26, 1959], No. 2705/59. Drawings to Specification. Class 100 (4). A composite character-printing device, having a plurality of independently-operable impression members in a line and means for effecting movement in a direction at rightangles to such a line between the print head and the material to be printed whereby in each letter space the printing head traverses a mosaic of areas in columns and rows, has electromagnets to effect impression in each column of the letter space, the members required to build a selected character under the control of a cyclically readable signal store. A magnetic drum has a first fount track in which is stored in sectors and sub-sectors in series column by column, the signals required for all the characters which may be printed and a plurality of second fount tracks receiving signals representative of the particular character to be printed. Electronic-operating devices for each electromagnet each have two control elements, the first of which in all the devices is made effective at each column position of each letter space and the second of which under the control of gating means, controlled by the second reading means, are made effective by timing means selectively to produce the character stored in and read out of the selected second fount track. A second track similar to the first fount track may be provided in which the signals are stored in the reverse order so that the printing head may operate as it moves in either direction. Specification 851,752 is referred to.
Patent GB-584898-A (GB)
Title: Improvements relating to the decoration of pottery articles
IPC: B28B11/00
Filed: 1945-02-05
Abstract: 584,898. Decorating pottery. ROYAL CROWN DERBY PORCELAIN CO., Ltd., and ROBINSON, P. I. Feb. 5, 1945, No, 2792. [Class 93] Pottery articles carrying modelled representations (floral sprays &c.) are decorated by covering the representation with a temporary mask or shield of a non-hardening plastic character while the decoration of the remainder is carried out, after which the shield is removed. A suitable masking material is an oil-bound clay such as modelling clay, a thin sheet of flexible material such as paper is preferably interposed between the mask and the representation. The more fragile portions, particularly the edges. of the representations are built around with the masking material to act as reinforcement and to prevent damage. In an example, after the representation has been sealed off by modelling clay, the remainder of the article is decorated by groundlaying, in which the surface is covered with a film of oil and colour is applied in powdered form, or by spraying or powdering, after which the shield is removed. Local treatment of the masked portion may proceed after the mask has been removed.
Patent GB-509853-A (GB)
Title: Improvements in or relating to methods of making golf ball bodies and products thereby obtained
IPC: B29D99/00
Filed: 1938-01-29
Abstract: 509,853. Winding golf balls. BOGOSLOWSKY, B. Jan. 29, 1938, No. 2880. Convention date, Jan. 29, 1937. [Class 120 (ii)] [Also in Group XV] A golf ball body is made by winding from a feeding point one or more elastic strands under tension around a centre point in the axis of a rotating mandrel while effecting a relative oscillatory motion between the feeding point and the centre point such that the period of a complete relative oscillation is greater than the time taken for the mandrel to rotate through 360 degrees ; the mandrel is withdrawn from the ball body on the completion of the winding so that the body is composed exclusively of successive convolutions of one or more elastic strands wound tmder tension from the geometrical centre of the ball body to the outside periphery thereof. When two or more strands are used, they are arranged in interwoven successive convolutions and corresponding convolutions of the respective strands cross one another twice in each convolution ; the strands may be weighted or the ball or its surface may be impregnated with a weighting material before the usual cover is applied. As shown, the ball is formed from two strands 38, 39 fed through rollers 40 to perforations 41, 42 in a pair of traverse levers 21, 22 arranged above and below a table, carrying bearings for a shaft 5 having a chuck 6 which grips one end of the mandrel 7, the other end of which is supported by a bearing 4. The levers 21, 22 are provided with slots 23 engaging a vertical rod 12 slidable in slots 10 and 11, in a fixed bracket 9 and the table 1 respectively and the rod is supported in a vertical position by a bracket 13 pivoted on a post 14 and having a tail 15 engaging a cam track 16 in a gear 17 driven by a worm 19 on the shaft 5. The outer ends of the traverse levers carry pins 24, 25 fixed to transverse bars 26, 27 slidably mounted in standards 28 fixed to the table 1 and carrying cam followers engaging a track 31 in a cam 30 driven by sprocket gearing from the shaft 5. The track 31 is formed so that for a part of each half rotation of the cam each bar 26 is moved from one limit of its traverse to the other and remains stationarv for the remainder of the half revolution of the cam, while the extent of the oscillation of the levers 21, 22 is varied by the cam 16, the period of a complete oscillation corresponding to more than 360 degrees of rotation of the mandrel and less than 540 degrees: the gearing between the cam and the shaft 5 is arranged so that the change from the maximum oscillation of the levers to the minimum and vice versa occurs during a predetermined number of revolutions of the mandrel.
Patent GB-924532-A (GB)
Title: Catalytic compositions
Inventor: CALVIN GEORGE
IPC: B01J38/00
Filed: 1961-01-25
Abstract: An oxidation catalyst comprises CoMoO4 and a minor proportion of one or more of the molybdates of Mn, Cr, Cd, Sn, Sb, U, Al, Th or Zr. The minor proportion may be between 0,01 and 20 moles per cent based on the CoMoO4.  The catalyst may be prepared by coprecipitation of mixed molybdates from aqueous solutions containing Co and another salt, the molybdate of which it is desired to precipitate.  The molar ratio Co/Mo is preferably not greater than 1/1 .  The catalyst may be supported e.g. an Al2O3.  A preferred oxidation catalyst consists of CoMoO4 to which has been added a mixture of manganese and cadmium molybdates.  The CoMoO4 may be prepared in the presence of a nitrogeneous base and subsequently subjected to a two stage heat treatment as described in Specification 878,802. Examples are given.
Patent GB-231279-A (GB)
Title: Method of purifying metals and an apparatus for carrying out the same
IPC: C22B9/05
Filed: 1924-02-04
Abstract: 231,279. Marks, E. C. R., (Sumet Corporation). Feb. 4, 1924. Hydrogen substantially free from oxygen for use in purifying molten metals is produced by decomposing steam, for example by means of iron. In the apparatus shown, steam from a boiler 5 is passed to a superheater 6 comprising a. number of plates 12 in which are embedded wrought iron or steel pipes 13 raised to a temperature, for example of 1900‹ F.. the hydrogen produced being passed to a vessel 20 containing the molten metal to be treated.