baber/WOPTO huggingface dataset:
Patent GB-1009065-A (GB)
Title: A television receiver channel-selector
IPC: H03J5/32
Filed: 1962-08-01
Abstract: 1,009,065. Radio-receiving apparatus. TELEFUNKEN PATENTVERWERTUNGSGESSELLSCHAFT. Aug. 1, 1962 [Aug. 2, 1961; May 15, 1962], No. 29552/62. Heading H3Q. In a television receiver having push-button tuning there is associated with each of selected ones of the push-buttons a respective lever which may be moved to either of two positions, in one of which depression of the corresponding push-button effects selection within a first frequency band (e.g. band I) and in the other of which depression of the corresponding pushbutton effects selection within a second frequency band (e.g. band III), tuning within either band being effected by rotation of a tuning knob housed within the push-button. In the arrangement shown the three pushbuttons on the left on the Figure are each provided with a lever 8 which is pivoted at 9 to the push-rod 10 for rotational adjustment about its pivot by movement in a vertical plane of its accessible tip 8a. The levers 8 are visible for two only of the three push-buttons. With the tip 8a in its lower position, depression of the push-button causes plate 14 to move a certain distance to the left due to the engagement of the edge of a longitudinal slot within the push-rod 10 with the sloping edge 13 of the plate 14 over a part of its travel. This causes the switch 19 to switch in the VHF portion of the apparatus and bell-crank lever 15 to rotate a limited distance to move rod 18 the appropriate distance to select band I therein. When the tip 8a is in its upper position, the opposite end of the lever 8b is depressed to engage the sloping edge 13, so that depression of the corresponding push-button causes a greater movement of the plate 14 and bell-crank lever 15 and rod 18 is moved a sufficient distance to effect selection of band III. The three pushbuttons on the right effect selection within the UHF band since switch 19 is not actuated thereby. Tuning within whichever band is selected may be performed by rotation of a tuning knob 2 associated with each of the push-buttons.
Patent GB-1319682-A (GB)
Title: Thin film metallization process for microcircuits
IPC: H01L23/29
Filed: 1970-06-18
Abstract: 1319682 Semi-conductor devices TEXAS INSTRUMENTS Inc 18 June 1970 [22 July 1969] 29615/70 Heading H1K A method of providing conductive tracks on an insulated substrate 21 comprises depositing a metal film 25 on the apertured insulating film 24 and electrolytically oxidizing at least a part of the surface area of the film 25 partially through its thickness to produce an oxide layer 26, masking desired regions of the metal/oxide film at 27 and further electrolytically oxidizing the unmasked areas of the metal film through its thickness to leave the tracks. The metal film may be of aluminium, molybdenum, tantalum, titanium or zirconium and be deposited by electron gun evaporation. Oxidation may be by means of anodic oxidation in an acid bath, and masking may utilize a photo-resist material. The substrate may be of silicon and contain diffused regions forming a transistor and resistor, Fig. 7 (not shown). In an alternative construction where the tracks are desired to have free top contact, prior to the first oxidation the desired contact areas are masked, Fig. 2b (not shown), resulting in tracks having free surface portions, Fig. 2e. Alternatively these contact areas could be exposed in the first embodiment merely by etching the oxide at the desired areas. A further level of tracks may be made on the first metal/ oxide pattern by similar deposition and oxidation methods, the second level contacting the first level at the free contact portions.
Patent GB-1399597-A (GB)
Title: Drawing die assemblies
IPC: B21C3/06
Filed: 1971-06-24
Abstract: 1399597 Drawing; stamping P M ROSS 14 June 1972 [24 June 1971] 29648/71 Headings B3P and B3Q A metal drawing die assembly, e.g. for drawing metal tubes and containers using a mandrel, comprises a frusto-conical or right cylindrical die 12 axially immovably retained within a surrounding holder 13 and means for applying adjustable forces to the outer surface of the die 12 to elastically compress or expand the die 12 so as to vary the size of the die opening 11. In one embodiment, Fig. 1, the die 12 which is secured by a locking ring 14 in a collar 13, is stressed so as to alter the size of its opening 11 by feeding oil under pressure into an annular space 16 surrounding the die 12. A larger annular space 16 may be formed by using a flared ring (21) (Fig. 3, not shown) positioned between the die 12 and collar 13. In another embodiment, Fig. 6A, the die 12F is surrounded by rollers 30 and a split ring 13F whose ends may be urged towards each other to compress the die 12F by a piston-rod 34 of an hydraulic ram 35. Alternatively, the die is stressed by segments (23), (Fig. 4B, not shown), each forced into engagement with the die by an hydraulic ram (22) mounted in a collar (13D). In a further embodiment (Fig. 2, not shown), the outer surface of the die (12B) and the bore of the collar (13B) are frusto-conical. In another embodiment (Fig. 5, not shown), the die (12E) is tightly fitted on a collar (13E) which can be cooled or heated by circulating fluid through a jacket (24).
Patent GB-544337-A (GB)
Title: Improvements in methods of vulcanising rubber, balata, gutta-percha, synthetic rubber and like substances and dispersions thereof
IPC: C08L21/00
Filed: 1939-11-09
Abstract: 544,337. Vulcanizing rubber &c. RUBBERSTICHTING. Nov. 9, 1939, Nos. 29743, 29744 and 29745. Convention dates, Nov. 9, March 18; and Aug. 5. [Class 70] Rubber, balata, gutta-percha, synthetic rubber and like substances, mixtures thereof, and dispersions of these substances are vulcanized by heating with a synthetic resin such as certain phenol-formaldehyde resins as vulcanizing agent. Ordinary vulcanizing agents such as sulphur in amount insufficient to effect complete vulcanization, accelerators, active fillers such as carbon black, kaolin &c. and metal oxides having a catalytic action such as those of magnesium, zinc, lead, or barium may be added to the mixture.
Patent GB-996459-A (GB)
Title: Photographic processing
Inventor: BROWN GEORGE MARTIN
IPC: G03D3/06
Filed: 1962-08-02
Abstract: 996,459. Photographic processing apparatus. ILFORD Ltd. July 19, 1963 [Aug. 2,1962], No. 29790/62. Heading G2A. The main tank 10 of a processing apparatus, containing developer solution, has above it a closed reservoir tank 11, connected to tank 10 by a pipe 12 ending just below the liquid surface. A second main tank 13, containing fixer solution, similarly has above it a reservoir tank 14; the connecting pipe, however, extends well below the level of the liquid in tank 13. An overflow pipe 15 is provided for the latter. The space above the liquid in the two reservoir tanks are connected by a pipe 16. As the liquid in tank 10 is used up, as for example by adherence to film passing through it, the liquid level falls below the end of pipe 12. This is then replenished in the usual way, by a small quantity of atmospheric air entering pipe 12, to escape into the space above the liquid in tank 11, and so forcing more liquid down pipe 12. Owing to the communication effected by pipe 16, more liquid is also forced down from tank 14 to tank 13. In Fig. 3 (not shown) the method is extended to replenishing a system of three main tanks in sequence.
Patent GB-713621-A (GB)
Title: Improvements in or relating to the manufacture of electrical capacitors
Inventor: BARNARD ROY MAYNE
Filed: 1952-11-25
Abstract: 713,621. Electric capacitors. STANDARD TELEPHONES & CABLES, Ltd. Nov. 25, 1952, No. 29794/52. Addition to 713,605. Class 37. An electrical capacitor is manufactured by applying a coating 2 of insulating material to a conductor i, dissolving portions of the conductor not covered by the material, applying a second insulating coating 3, and then a metallic layer 4 so as to leave a central portion 7 free of metal, cutting along the centre to disclose the conductor, rolling up one of the parts, filling the gaps 9 with insulating material and trimming the edge so that a further metallic layer 10 can be provided to contact the conductor i. The metallic layers may be applied by vacuum deposition or spraying, and the insulated coatings by passing the conductor through liquid material and then drying and/or polymerizing. The edges of the conductor may be recessed by passing it through a solution which dissolves the conductor but not the insulating material.
Patent GB-1528440-A (GB)
Title: Process for the preparation of cyclic ketones
IPC: C07C69/716
Filed: 1977-07-15
Abstract: 1528440 Cyclic ketones SOC ANON ROURE BERTRAND DUPONT 15 July 1977 [16 July 1976 8 Nov 1976] 29806/77 Heading C2C Compounds of the formula where R is C 1 -C 3  alkyl, R<SP>1</SP> is C 3 -C 6  alkyl or alkenyl and n is 1 or 2 are prepared by reacting a compound of the formula with up to 1À5 molar equivalent of water, per molar equivalent of compound of Formula II, at an elevated temperature.
Patent GB-1464714-A (GB)
Title: Replacement of completed yarn packages in yarn processing  machines
IPC: B65H67/04
Filed: 1974-01-31
Abstract: 1464714 Winding continuously produced yarn PLATT SACO LOWELL Ltd 31 Jan 1974 [31 Jan 1973 23 Aug 1973] 29822/76 and 29823/76 Divided out of 1464713 Heading D1J The subject matter of this specification is identical with that described in Specification 1464713, in which a continually running yarn is being wound up, but the claims are concerned with the method by which a completed yarn package is replaced with an empty bobbin. According to the method claimed the yarn leading to the completed package is severed, the yarn from the supply is then fed to a yarn collection zone separate from the completed package, the completed package is removed and, prior to positioning an empty bobbin in the bobbin support, the running yarn is engaged with the empty bobbin, the empty bobbin being then mounted in its support such that until commencement of rotation of the bobbin the yarn continues to engage the bobbin and to run to the yarn collection zone. The specification includes claims directed to apparatus for carrying out the above method.
Patent GB-947236-A (GB)
Title: Improvements relating to vehicle mirrors
Inventor: NEALE DAVID WARWICK
IPC: B60R1/076
Filed: 1961-08-18
Abstract: 947,236. Vehicle mirrors. RAYDYOT Ltd. Aug. 3, 1962 [Aug. 18, 1961], No. 29831/61. Heading B7J. [Also in Division E2] A vehicle mirror comprises an arm 13, Fig. 2, carrying the mirror head and pivotally mounted in a base attachable to the vehicle and having a flange 12, the arm having a shoulder 18 normally seating on the flange 12 and a sleeve 19 telescoping within the flange, a roller 22 on the arm engaging an oblique abutment face 21, fast with the base, under the urge of a spring 16, whereby when the arm is knocked it is pivoted from the position shown to stress the spring and create a restoring force tending to return the arm to the position shown. According to the Provisional Specification, the roller may be provided on the base and the face 21 on the arm.
Patent GB-991019-A (GB)
Title: Improvements in and relating to the uniform continuous feeding of hair and fibre material to processing machines
IPC: D01G23/00
Filed: 1961-08-18
Abstract: Hair and fibrous material which is to be continuously and uniformly fed to a processing machine is supplied to a fixed or moving conveyer e.g. a slide plate or an endless belt, on which it is compacted before entering the machine.  The hair &c. is supplied in a loose layer and engaged by a feeder which (if the conveyer is moving) moves in the same direction as but at a higher speed than the conveyer, and the foremost portion of the layer is, with the aid of the feeder, pushed and compacted on the conveyer against stops e.g. stripping rollers, at the end thereof or against a web already formed thereon. The feeder is disposed above the conveyer and comprises staggered or aligned sets of moving gripper arms extending through a grate, the arms of each set being connected (to form a rake) by spring-loaded, pivotably mounted cross-members.
Patent GB-704872-A (GB)
Title: Improvements in methods and apparatus for the cultivation of microorganisms
IPC: C12M1/10
Filed: 1950-12-06
Abstract: 704,872. Stirring appliances. SOC. LE BACTOGENE. Dec. 6, 1950 [Dec. 21, 1949; July 13, 1950; Nov. 9, 1950], No. 29912/50. Class 86 [Also in Group VI] An apparatus for the culture of microorganisms (see Group VI) comprises in combination, a drum of substantially horizontal axis to contain the culture in treatment, means for continually adding fresh nutrient into the drum and means for continuously removing culture from the drum by means of continuously stirring the culture in the drum. As shown in Fig. 1 a rotary horizontal drum 1 is provided with an interior spiral rib 10, an entry pipe 12 through which the medium is pumped by a pump 50 and a siphon 13 for withdrawing the produced culture and an entry 16 for inoculating the culture. Heating at constant temperature is obtained either by placing the drum in a thermostatic vessel or by disposing electric resistances on the outer surface or inside of the drum, a regulator 11 dipping in the culture being provided for adjusting the thermostatic system. In a modification of the apparatus shown in Fig. 2 the drum 1 is provided with co-axial cylinders which are provided with continuous or perforated surfaces 22, 23 and which may be secured by braces 24, 25, 26, 27 or which may turn independently of the drum possibly in the opposite directions being driven through mechanism such as diagrammatically shown by references 101-104. The cylinders may also be provided with helical or other ribs analogous to the ribs 10 in Fig. 1 to ensure thorough stirring. The drum 1 may be stationary with only the inner cylinder rotary. High bacteriological sterility is ensured by providing sterilizing devices such as ultra-violet ray tubes round a cylindrical element 160 rigid with the closure plate 9 so that air entering will be sterilized.
Patent GB-388118-A (GB)
Title: Improvements in optical glasses
IPC: C03C3/074
Filed: 1931-10-29
Abstract: 388,118. Glass manufacture. JENAER GLASWERK SCHOTT & GEN., Otto-Schott-Strasse, Jena, Germany. Oct. 29, 1931, No. 29940. Convention date, Nov. 5, 1930. [Class 56.] Optical glass of refractive index greater than 1À60 and of low dispersion contains up to 20 per cent of titanium dioxide and at least 10 per cent of alkaline earth oxides (BeO, MgO, CaO, SrO, BaO), Mono- and trivalent and other bivalent oxides may also be present. The percentage of bi- and trivalent oxides preferably amounts to at least 35 per cent. According to examples, the glasses contain in addition to calcium and barium oxides, 2À5 to 11 per cent of TiO2, silica and boric oxide, oxides of zinc, lead and arsenic, and sometimes of sodium or aluminium. The Specification as open to inspection under Sect. 91 is not restricted to glasses containing alkaline earth oxides, and states that the titanium oxide may be wholly or in part replaced by oxides of thorium, hafnium, zirconium, germanium, and tin. This subject-matter does not appear in the Specification as accepted.
Patent GB-1490812-A (GB)
Title: Magnetic beam deflector system
IPC: H05H7/08
Filed: 1975-07-17
Abstract: 1490812 Linear accelerators ATOMIC ENERGY OF CANADA Ltd 17 July 1975 [15 Aug 1974] 30026/75 Heading H1D The magnet deflection system of Fig. 3, having four magnets 31, 32, 33, and 34 symmetrically arranged about a plane 35, and producing deflection of a charged particle beam through 180 degrees such that it exits in the reverse direction along its entrance path, e.g. for use in a standing wave linear accelerator, is arranged to be achromatic and isochronous, and to produce an exit beam of substantially the same size as the entrance beam, by suitable choice of the system parameters.
Patent GB-1235434-A (GB)
Title: On load tap changing arrangement for a three phase tap transformer
Inventor: MATZL MANFRED
IPC: H01F29/04
Filed: 1969-06-13
Abstract: 1,235,434. Transformer tap-changers. E. SCHEUBECK. 13 June, 1969 [19 June, 1968], No. 30050/69. Headings H1N and H1T. In a three-phase tap-changing system on-load tap changing is effected phase by phase in succession using controlled rectifiers 7, 8, 9, 10 connected in reverse parallel (or two triacs) and three pole switches 6, 11, 12. In changing, e.g. from tap W2 to W1 movement of the spindle carrying the moving contacts of switches 6, 11, 12 and 30 first brings contact 126 of 12 on to fixed contact 123 thus connecting thyristors 9, 10 to tapping W2. Then contact 116 of 11 comes on to fixed contact 113 connecting tap W1 to thyristor pair 7 and 8 and so applying a voltage from transformer 371 to one of the inputs of AND gate 36. At the same time the other input to AND 36 is energized from switch 30 and bi-stable flip-flop 34 so that pulse generator 42 fires thyristor pair 9, 10. Thyristor pair 9, 10 then carries the load current from tap 2 of phase W when contact 69 of switch 6 leaves fixed contact 66. On further rotation of the common switch spindle, moving contact 33 of switch 30 moves on to contact set 31 whereupon flip-flop 34 switches to its other position, and the ignition pulses on thyristor pair 9, 10 disappear. On cessation of current through thyristors 9, 10, transformer 381 provides an input to AND gate 35 (which is already receiving an input from flip-flop 34) and ignition pulses are provided by generator 39 to thyristor pair 7, 8 which then connects Y to tapping W1. Further movement then brings contact 69 of 6 on to fixed contact 65 thereby connecting tapping W1 direct to line Y. Contact 126 of 12 then leaves fixed contact 123 de-energizing thyristors 9, 10 and causing stoppage of the switching pulses to thyristors 7, 8. Further movement brings movable contact 33 on to contact group 32 and switches 12 and 11 i connect the thyristor pairs 9, 10 and 7, 8 in succession to respective tappings V2 and V1, the operation then proceeding as before. Tap changing from taps 1 to taps 2 takes place in the sequence U, V, W instead of W, V, U. The arrangement of the three pole switches 6, 11, 12 with a common operating spindle 57 linked to operating shaft 56 of switch 30 is shown in Fig. 2. The moving contact members of the switches 6, 11 and 12 are in the form of spring- pressed roller contacts such as 68, 115 and 125 which act as bridging contacts between the fixed contact members such as 64, 112, 122 and conducting rings 13, 14, 15. The movable spring contacts 320 of switch 30 connect the contacts 31 or 32 to a conducting ring 310. The thyristors 7, 8, 9, 10 are contained in a housing 55 attached to housing 52 which contains spring means for producing snap action switching of 6. The drive gearing is contained in the tap - changer head 51. Connection is made between the switches and the thyristors by spring-pressed contacts at 80.
Patent GB-869882-A (GB)
Title: Tetrazaindene compounds and their use in photographic silver halide emulsions
IPC: G03C7/18
Filed: 1957-09-25
Abstract: The invention comprises tetrazaindene derivatives of formula: <FORM:0869882/IV (b)/1> in which X represents a divalent aliphatic organic group containing at least 2 carbon atoms.  The group X may be, for example, ethylene, propylene, or tetramethylene and may be substituted, for example, by chlorine, hydroxyl or carboxyl.  The alkylene chain may also be interrupted by other atoms such as oxygen or nitrogen.  These compounds may be prepared by condensing 2-ethylmercapto-4-hydroxy-6-methyl-pyrimidine, <FORM:0869882/IV (b)/2> with a dihydrazide of formula <FORM:0869882/IV (b)/3> to give a hydrazide compound of formula:  <FORM:0869882/IV (b)/4> and refluxing this in a solution containing a strong mineral acid such as hydrochloric or hydrobromic acid, and a solvent such as glacial acetic acid.  The 2-ethylmercapto-4-hydroxy-6-methyl-pyrimidine may be prepared by heating thiourea with bromethane and adding acetoacetic ester to the resulting mixture.  The dihydrazide used as starting material may be prepared by reacting the butyl ester of the acid X(COOH)2 with hydrazine.  Examples are given of the preparation of tetrazaindene derivatives of the above formula in which X is -CHOH-CHOH-; -CH2-O-CH2CH2-O-CH2-; -CH2CH2- and -(CH2)4-.  The new compounds may be used in the preparation of photographic silver halide emulsions (see Group XX).  Specifications 235,211, 602,158, 602,160, 618,061, 636,140, 658,592, 661,645, 664,230, 680,593, 682,355, 742,219, 742,221 and 742,224 are referred to.
Patent GB-1311909-A (GB)
Title: Method of forming images of an object simultaneously at a plurality of locations in space
IPC: G02B5/32
Filed: 1970-06-22
Abstract: 1311909 Holography PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 22 June 1970 [25 June 1969] 30153/70 Heading G2J A method of forming a plurality of images 18, Fig.2, of an illuminated or light-emitting object 12 comprises producing a hologram 15 of a point array 9, Fig.1, of the desired spatial distribution by exposing a photographic plate 8 through a distortion-correcting lens 11 or lens system simultaneously to a reference beam 7 and an object beam 10 from the point array, the real images 18 being formed by illuminating hologram 15 with light from an object 12 (or an image corresponding thereto) and locating the correcting lens 11 or lens system between the image plane 17 and hologram 15, the effective distance of the real images 18 from hologram 15 being substantially the same as the effective distance of the source of the reference beam from the photographic plate 8. In one embodiment the lens 11 consists of a thin concavoconvex lens placed adjacent said point array 9 and image plane 17 respectively, the stronger curvature of the lens facing the plate 8 or hologram 15 respectively. Alternatively a lens system can be used comprising a thin concavo-convex lens placed adjacent plate 8 or hologram 15 with the surface of stronger curvature facing the array 9 and image plane 17 respectively, and a second lens situated adjacent the array and image plane respectively. The second lens is also concavo-convex with the concave surface having the greater radius of curvature and facing the array and image plane respectively. The invention has application in integrated circuits.
Patent GB-1173200-A (GB)
Title: Lock Actuators
Inventor: NEAL BRIAN PATRICK
IPC: F15B15/26
Filed: 1967-06-30
Abstract: 1,173,200. Lock actuators. WESTING- HOUSE BRAKE & SIGNAL CO. Ltd. 26 June, 1968 [30 June, 1967], No. 30305/67. Headings F2E and F2F. In a lock actuator of the kind described in Specification 29890/67, viz., the piston-rod 5 is locked by spring biased rollers 16 and released by an annular piston 12, this release piston is actuated through an hydraulic circuit including conduit 34 and a further piston 36 which is moved either by air pressure through inlet 38, or screw 39.