baber/WOPTO huggingface dataset:
Patent GB-428455-A (GB)
Title: Improvements in or relating to shutters for photographic cameras
IPC: G03B9/08
Filed: 1933-11-03
Abstract: 428,455. Photographic shutters. BILLING, N. P., 6, Lower Regent Street, London. Nov. 3, 1933, No. 30637. [Class 98 (i)] The shutter comprises a pair of movably mounted components, the first having an exposure aperture and the second forming a closure member for this aperture, in combination with a shutter setting element operatively connected to both components with lost motion between the setting element and the first component after an initial movement of the latter so that the components are movable through different distances. The shutter components may be discs, revolving round an axis parallel to the lens axis, and provided with gear elements engaging a common gear wheel. In the form shown, the shutter comprises leaves 5, 6, Fig. 7, the leaf 6 comprising a toothed ring having a large aperture 29 and a small solid sector 30, and the leaf 5 comprises a disc having gear teeth only on part of the periphery and a sector-shaped aperture 31. The teeth of both gears engage a pinion 7 on the same shaft 37 as a second pinion engaging teeth on the inside of a ring for setting the shutter. A ratchet wheel 14, Fig. 8, is also mounted on this shaft which is provided with a coil spring. A pawl 16 engages the ratchet 14 and a second pawl 15 engages a pin 43 on the pawl 16. The shutter is set by rotating the setting ring which moves the aperture 31 out of register with the lens aperture, the leaf 5 then stopping owing to the absence of gear teeth on part of the periphery, and simultaneously the leaf 6 is rotated and the spring on the shaft 37 wound up. For instantaneous exposure the pawl 16 is pressed, the length of exposure depending on the angular separation of the leaves 5, 6. For time exposures, the pawl 15 is pressed lifting the pawl 16 clear of the ratchet 14, but leaving a projection 41 on the pawl 16 in the path of a stud 40 on the ratchet wheel. The exposure is terminated by pressing the pawl 16. In a modified form, a crown wheel is used to replace the ratchet wheel 14. The return speed of the shutter may be checked by means of a brake. Specifications 423,035 and 423,226 are referred to.
Patent GB-665084-A (GB)
Title: Wheel
IPC: B60B23/10
Filed: 1949-11-29
Abstract: 665,084. Vehicle wheels. KELSEY-HAYES WHEEL CO. Nov. 29,1949 [Dec. 6, 1948], No. 30655/49. Class 144 (ii) A vehicle wheel comprises a wheel body 1 with a circumferentially extending radial shoulder 11, a detachable rim 3 formed with circumferentially extending inboard and outboard radial surfaces 17, 18 spaced by an outboardly flared radially inner surface 20, and clamping means 23 having a portion 33 abutting the outboard radial rim surface 18 to force the inboard radial rim surface 17 against the wheel body shoulder 11 and a radially resilient portion 30 engaging the flared radially inner surface of the rim. As shown, the wheel body 1 is formed with an inboardly flared circumferential surface 10 from the inboard edge of which the shoulder 11 projects, and the clamping means 23 comprises a channel-section ring, the outer flange of which is shaped to provide a plurality of rim seating and rim abutting portions 30, 33, respectively, which are circumferentially interspaced and relatively radially offset from one another. The portions 30, 33 are themselves interspaced by portions 32 which extend axially inwards of the portions 33 and are offset radially inwards of the portions 30, 33, and are inclined at the same angle as, and engage with, the wheel body surface 10. Additional rim seating portions 31 are struck out from the portions 33 to extend axially inwardly thereof, and together with the rim seating portions 30, engage with the flared rim surface 20 so that the portions 30, 31 co-operate with the portions 32 to effect a resilient wedging action with the flared surface 20, 10 of the rim and wheel body respectively and axially and radially align the rim 3 on the wheel body 1. The surfaces 17, 18, 20 of the rim 3 form a gutter 14 on the outer surface of the rim to receive a clamping ring 16 for a tyre retaining flange 15.
Patent GB-1514768-A (GB)
Title: Bearing for a spinning or twisting-ring
IPC: D01H7/56
Filed: 1975-07-22
Abstract: 1514768 Aero-dynamic bearing DR JOHANNES HEIDENHAIN GmbH 22 July 1975 [25 July 1974] 30662/75 Heading F2A [Also in Division D1] A spinning or twisting ring is mounted on an aero-dynamic bearing which provides both radial and axial air cushion support wherein the ring is mounted on a rotor having at least one outwardly directed flange 4 with annular bearing surface 11 and the stator 2 has at least one bearing surface 6 which has a slightly projecting surface area which is in contact with the bearing surface 11 of the rotor when the ring 3 is stationary and during start up. In the embodiment, the ring 3 is carried by a rotor 1 having external radial flanges 4, 5. Flange 5 may incorporate a brake disc of an eddy current brake. The stator 2 has radial flanges 6, 7 in close proximity to bearing surfaces 11, 12 of the flanges 4 and 5 of the rotor 2. The inner surfaces of the stator 2 may have a coating 8 of a synthetic material in which are formed spiral grooves in the bearing surfaces 6, 7. The spiral grooves and projecting surface areas may be alternatively or additionally formed in the bearing surfaces of the rotor.
Patent GB-507323-A (GB)
Title: Improvements in or relating to electrical insulating materials
IPC: C08F255/00
Filed: 1937-11-09
Abstract: 507,323. Hydrocarbon polymer compositions. STANDARD TELEPHONES & CABLES, Ltd.. SCOTT, T. R., and FIELD, M. C. Nov. 9, 1937, No. 30735. Samples furnished. [Class 2 (iii)] An electrical insulating-material is prepared by adding a polymerized aliphatic monoolefine containing less than six carbon atoms to a monomeric or partially polymerized mononuclear aromatic vinyl hydrocarbon, allowing the mono-olefine to swell or dissolve in the aromatic compound, and then subjecting the mixture to the action of heat in order to polymerize the aromatic compound. Alternatively, the material may be prepared by dissolving the polymerized olefine and the .polymerized vinyl hydrocarbon in a common solvent and then heating the solution to drive off the solvent. The monolefine may be ethylene, propylene, butylene or amylene, and the vinyl hydrocarbon may be styrene. Additional substances may be incorporated in the insulating material, e.g. by admixture with the vinyl hydrocarbon prior to the polymerization thereof, or by dissolving in the solution. Specified additions are rubber, balata or guttapercha, with or without a rubber plasticizer such as ceresin wax, hydrocarbon waxes, and, when the material contains polystyrene, a plasticizer comprising a stable homocyclic carbon compound having two or three fused rings, a boiling point higher than 240‹ C., a low electric moment, and capable of swelling polystyrene, e.g. phenanthrene, isoamylnaphthalene, alpha-npropylnaphthalene, fluorene or #-naphthylmethylether. The Specification contains examples of materials' prepared by adding specified proportions of polyisobutylene of molecular weights about 100,000 or 200,000, or of polyethylene, to monomeric styrene, warming to effect solution, and then heating with agitation to polymerize the styrene. The material may be used to insulate cables, to form spacing members for coaxial cables, to impregnate tapes, e.g. of paper, may be formed into sheets, ropes or films, or employed in condensers or dielectric wave traps. Specifications 357,624, [Group V], 490,814 ; and 495,034, [Group XXXVI], are referred to. Samples have been furnished under Sect. 2 (5) of materials prepared by (1) adding-polyisobutylene in specifed proportions to monomeric p-divinyl benzene or to a mixture of p-divinyl benzene and styrene, allowing the mixture to stand, and then heating to effects polymerization of the vinyl constituents; (2) dissolving polystyrene in toluene, adding a solution of polyisobutylene in toluene, and heating to drive off the toluene, the product being milled and sheeted.
Patent GB-670560-A (GB)
Title: Improvements in or relating to the manufacture of articles from nickel-chromium-cobalt alloys
Inventor: OLIVER DONALD ARTHUR
IPC: C22C19/05
Filed: 1946-10-17
Abstract: Metal articles are made from alloys of the following composition: C, 0.2-0.6 per cent; Mn, 0.3-2.0 per cent; Si 0.2-2.0 per cent; Ni. over 20.0 and up to 30 per cent; Cr, 10.0-20.0 per cent; Co, 29.0-45.0 per cent; Mo, 0.5-3.0 per cent; Nb, 0.5-3.0 per cent; V, 0.1-6.0 per cent; Fe, 0-39.2 per cent by stamping in a die or dies, cooling, soaking at 20-150 DEG C below the incipient melting point of the alloy but above 1275 DEG C, cooling and warm working by stamping in a die or dies to give a predetermined overall reduction in size.  The soaking treatment is carried out in an inert atmosphere, e.g. for 1-20 minutes.  The first forging operation may be effected at 1000-1300 DEG C and the warm working at 600-900 DEG C.  The warm working may be replaced by ageing at 600-900 DEG C for 10-500 hours. Specifications 647,701 and 670,555 are referred to.
Patent GB-225708-A (GB)
Title: Improvements in apparatus for drawing glass in sheets
IPC: C03B15/06
Filed: 1923-12-10
Abstract: 225,708. Lanoy, C. Dec. 10, 1923. Drawings to Specification. Drawing.-Relates to the process of drawing sheet glass in which the sheet is drawn from a slot in a block of refractory material. According to the invention, in order to avoid the formation of longitudinal striae in the sheet, the slot is formed in material which either does not adhere, or adheres uniformly, to the plastic glass, has no chemical action thereon, is a good conductor of heat, and has a higher melting point than that of the glass. The slot may be formed in a block of gun metal or copper, or in a bar of copper inset in a block of other material. The block may be cooled by circulating water through internal channels in order to prevent the temperature from approaching too closely the melting- point of the material of the block. Reference has been directed by the Comptroller to Specifications 9295/04 and 192,427.
Patent GB-773873-A (GB)
Title: Improvements in or relating to tables, desks and like articles of furniture
Inventor: PHILLIPS JAMES EDWARD
IPC: A47B21/02
Filed: 1952-12-08
Abstract: 773,873. Rising and falling platforms. ANGUS & CO., SCOTLAND, Ltd., W. Dec. 1, 1953 [Dec. 8, 1952], No. 31036/52. Class 52 (1). A lid-actuated rising and falling platform 6 for a desk or cabinet has shoes 12 running in guide rails 10 which maintain the platform horizontal the lid 16 being connected thereto by a link 21 and guided by radius arms 14, 25 pivoted to the walls of the casing and coupled by links 18, 20, the pivotal connections being at the ends of the various links.
Patent GB-1154840-A (GB)
Title: Improvements relating to the Continuous Ringless Spinning of Textile Fibres
IPC: D01H4/10
Filed: 1966-07-12
Abstract: 1,154,840. Break-spinning apparatus. VYZKUMNY USTAV BAVLNARSKY. 12 July, 1966 [5 March, 1966], No. 31249/66. Heading DID. In break-spinning apparatus, the spinning- chamber 1 is enclosed in a container to provide a space 16 which communicates with the atmosphere at 30 and with the spinning chamber through apertures 7 so that reduced pressure is created in the chamber as it rotates, to ensure that substantially all the air drawn into the chamber enters through the opening through which the fibres enter the chamber, the chamber is sealed off from the air space 16 by the following arrangement. The upper edge of the chamber terminates in two annular projections; the outer one 12 engages an annular groove 13 in a cover 14 for the space, and the inner one 9 passes with small clearance into a gap between the cover 14 and the cover 20 of the chamber so as to be level with, or project beyond, the outer surface of the cover 14. Fibres reach the chamber from a chamber 25, where they are separated, through a channel 23 in the cover 20. They are collected on a surface formed where two frusto-conical surfaces of the inside of the chamber meet. They are drawn off this surface as yarn through a channel in a downwardly-extending shank 2 of the chamber, which is mounted in bearings and has a pulley 6 so that the chamber can be rotated. So that fibres accumulating as the result of the yarn breaking may be removed, the cover 20 is pivotally mounted at 22. The elevation of the inner projection 9 above the cover 14 prevents the penetration of fibres into the seal provided by the projection 12 and groove 13.
Patent GB-1242714-A (GB)
Title: Improvements in or relating to photocomposing apparatus
Inventor: TIEFENTHAL JOSEF MARIA HERBERT
IPC: B41B17/08
Filed: 1968-07-01
Abstract: 1,242,714. Photocopying apparatus. MONOTYPE CORP. Ltd. 20 June, 1969 [1 July, 1968], No. 31252/68. Heading B6W. Photocomposing apparatus comprises eight separate stationary arrays each carrying thirtysix characters, only one array 12 being shown for simplicity; a separate light source 17 for each character, there being a light transmitting rod 18 linking a source and its associated character; a lens array 20 and a collimator lens 22; semi-silvered mirrors 23, 24; and a rotatable reflecting device 26 for reflecting images of successive characters on to photographic film 11 to form lines of print thereon with the required spacing between adjacent characters in each line. The reflecting device 26 comprises a helical polished reflecting surface 27 mounted on a rotatable shaft 28 to form a cylindrical Archimedean screw. The surface 27 slopes at 45 degrees to the axis of the shaft 28, so that light from the mirror 24 is reflected through 90 degrees along a path 30 on to the film 11 which may be mounted on a drum to advance the film after each line of characters has been printed. The shaft 28 is coupled to a stepping motor 31 driven in response to pulses from a unit 31a. This causes the helical surface 27 to rotate and consequently the point of impact of the imaging beam on the film 11 is moved along the film, thereby spacing successive characters from the array 12 (or from one of the other arrays, or from any combination thereof). The surface 27 extends around substantially one turn so that, after a full revolution of the shaft 28, composition of the next line of print can start after the last character of the preceding line has been imaged, after the film has been moved for line spacing. The operation of the light sources is controlled in dependence on the rotational position of the device 26, which position is indicated e.g. by counting the pulses fed to the motor 31. Thus the selected light source 17 can be flashed at the right instant after allowing for width of the character and justification requirements. The reflecting surface 27 could be provided by a large number of small flat reflecting surfaces arranged as facets on a generally helical surface, thereby avoiding distortion due to reflection from a helical surface. Alternatively, this distortion may be reduced by increasing the diameter of the device 26, or by predistorting the image by optical means, or by using distorted characters in the arrays.
Patent GB-964839-A (GB)
Title: Improvements in or relating to electrical connectors
Inventor: DAMSKI HENRYK
IPC: H01R12/72
Filed: 1962-08-15
Abstract: 964,839. Two-part couplings. ELECTRO METHODS Ltd. Aug. 8, 1963 [Aug. 15, 1962], No. 31268/62. Heading H2E. An electrical socket connector, e.g. a printed circuit board connector comprises a recessed housing, 1 and 2, containing at least one pair of opposed contact elements 3, each contact being resilient and having an end portion 6, rounded convexly towards the other contact element, this end portion being followed by a portion 7, that is at least twice folded back upon itself and has a number of branches of which the intermediate branch 12, can touch the preceding branch, by means of an indentation 9, at the top of the preceding branch 8, and a succeeding branch 13, being inclined relative to the recess wall 14, and the inclined branch 13 being connected to a terminal 15, extending outside the connector. When the printed circuit board or plug member is introduced the rounded end portions 6 are forced resiliently apart and the branches are forced towards the adjacent wall 14, of the recess. The contacts 3 are held in position by detent tongues 4, and an abutment of insulating material 17, formed integrally with the housing is provided between the contacts to prevent direct contact between them. A slit 16, is provided centrally along each contact to make them laterally resilient and the contacts may be electroplated with a suitable metal.
Patent GB-1261985-A (GB)
Title: Scintillation camera
IPC: G01T1/164
Filed: 1969-06-20
Abstract: 1,261,985. Scintillation camera. PICKER CORP. 20 June, 1969 [25 June, 1968], No. 31299/69. Heading H4F. [Also in Divisions C4 and G1] A scintillation camera includes a scintillator assembly between radiation delineating means 10 and an array of photo-electric elements 15, the assembly including scintillator 17 with parallel input and output surfaces and peripheral light absorbent region 30 for absorbing at least a portion of the light in the peripheral region and for inhibiting the reflection of light from the periphery back into the main imaging portion 28. Region 30 may be wedge shaped (oppositely orientated in Fig. 3, not shown) and regions 36, 38 coated with non-reflective and light-absorbent lamp black, regions 36, 38 being at slightly less than 45 degrees. The wedge may be symmetrical as in Fig. 2 (not shown). Scintillator 17 may be between circular Al and glass plates 19 and 20 respectively with annular metal ring 22 forming a hermetically sealed enclosure. Gamma ray detection in medical studies is mentioned and detection of a scintillation by one or more phototubes connected to a computer for sensing the spatial location of the emissions.
Patent GB-244485-A (GB)
Title: Improvements in a method for imparting a linen-like character to cotton
IPC: D06M11/40
Filed: 1925-12-11
Abstract: 244,485. Matt, H. Dec. 11, 1924, [Convention date]. Liquids, treating with; mercerizing.-Cotton yarns of less than 60 counts and fabrics made therefrom are given a linen-like appearance by treatment with sulphuric acid between 49‹ Be. and 50‹ BÚ. for a period of four minutes or more at a temperature between 0‹ C. and 5‹ C., and, after washing, mercerizing them under tension with caustic soda lye above 15‹ BÚ. at a temperature above 0‹ C. The sulphuric acid may be cooled to prolong bhe action, and the treated material may be beetled or calendered. In the Specification as open to inspection under Sect. 91 (3) (a) the strength of the sulphuric acid is stated to be not aibove 50 1/2‹ BÚ., instead of not above 50‹ BÚ. as in the Specification as accepted.
Patent GB-209059-A (GB)
Title: Process of and apparatus for shaping thin metal plates and attaching them to carriers
IPC: H01J19/28
Filed: 1923-12-13
Abstract: 209,059. Naamlooze Vennootschap Philips' Gloeilampenfabrieken. Dec. 22, 1922, [Convention date]. Electric fittings.-Plate-shaped electrodes to form anodes or grids for electric discharge tubes and consisting of solid or perforated metal sheets or metal gauze, are formed and attached to one or more carriers by bending shaped slates to cylindrical, elliptical, rectangular or other form so that their ends are brought close together and then bending and clamping the ends on both sides against the carriers, at least one end of the plate being bent round the carriers. A plate 43, Fig. 7, of the form shown in Fig. 14, to form an anode, is placed over a die 3 with the end i at the left side of the groove 5. A glass supporting- member 45, Fig. 13, with a flattened lower end 46, in which are sealed the carriers 52, 53 for the anode, supporting wires for the grid-support 49, and supporting wires 50, 51 for the filament, is placed over the slotted hollow centre 42 of the mandrel 6 so that the grid support is contained therein and the carriers 52, 53 so positioned as to project above the slot 41. The mandrel, which is fixed by a stud 8, Fig. 3, to the split end of a shaft 7, is then forced down to bend the plate in the groove 5, by a cam 16 through a pair of spring-controlled levers 9, 15, the lever 9 of which has a forked end engaging between a shoulder on the shaft and a spring-pressed ring 14. Dies 24, 25, Fig. 7, carried by slides which are held by springs in contact with face cams on the ends of the shaft 17 are thereupon forced forward to complete the bending of the plate round the mandrel into cylindrical form and to bring the ends i, j side by side. Dies 26, 27, which are mounted on similar slides and operated by the face cams, are then moved forwards to press the ends i, j against the carriers. The die 26 has a pair of cutters 66, 67 to slit the lateral edges of the plate near the end i and bend the projecting portions thereof over the carriers and completes its movement before the die 27, which finally completes the bending of the edges round the carriers. The dies 26, 27 may be arranged so that they reach their forward position simultaneously, the additional bending in this case being performed by hand. The shaft 17 may be stopped at the end of each revolution or at any time. The ends of the leads 50, 51 may be bent as shown in Fig. 13 before formation of the anode and the filament mounted after the anode is completed, or the filament may be mounted prior to forming the anode.
Patent GB-306580-A (GB)
Title: Improvements in or relating to constant frequency control devices suitable for use in picture telegraphy
IPC: H03B19/12
Filed: 1927-11-22
Abstract: 306,580. Wright, G. M. Nov. 22, 1927. Frequency, changing.-In a method of producing alternating currents of a constant frequency of, say, 500 cycles per second, suitable for use in picture telegraphy, a master tuning fork of comparatively high frequency, say 1000 cycles per second, and low damping is combined with a frequency changing device which reduces the frequency to the desired value. In the frequency reduces described, impulses from the tuning fork are passed through a transformer 4, valve 1, and resistance 6 tc a condenser 7, the capacity of which is so chosen that its potential is raised after every second impulse above the discharge potential of a neon lamp 8, so that impulses of half the original frequency are produced,in the grid circuit of valve 9.
Patent GB-669161-A (GB)
Title: Electric motors with axially movable rotors
IPC: H02K7/12
Filed: 1949-12-07
Abstract: 669,161. Electric motors. MARCK, G. J. VAN. Dec. 7, 1949 [Dec. 22, 1948], No. 31434/49. Class 35. In an electric motor whose rotor is arranged to move axially on energization to release a brake, as shown, or for other purposes, the stator and rotor are correspondingly divided into a series of axially-spaced frusto-conical pockets of laminµ 1, 2, respectively.