baber/WOPTO huggingface dataset:
Patent GB-803628-A (GB)
Title: Air blast electric circuit breaker
IPC: H01H33/30
Filed: 1956-09-26
Abstract: 803,628. Gas-blast switches. ALLMANNA SVENSKA ELEKTRISKA A.B. Sept. 26, 1956 [Oct. 5, 1955], No. 29350/56. Class 38 (5). An air-blast circuit-breaker has contacts 10, 12 supported by bushings 4, 5 in the walls of an air container 1 and the tubular moving contact 12 is mounted in. a sleeve 13 in the bushing 5 and is moved. by an air-operated piston 18 in a cylinder 20 carried above the insulator 5. To open the contacts a valve 24 is operated to connect the space above the piston 18 to atmosphere at 26, so that the pressure in the container 1 acts on the contact 12 moving it upwards until a valve disc 16 seats against a ring 28 on a housing 19, and shuts off passage of air, which during the opening of the contacts passes up the tube contact 12, through apertures 15 and housing 19 and exhausts through vents 30. To close the contacts the valve is operated to connect the space above piston 18 to the air pressure supply 25 and drive the piston 18 downward, the underside of the piston 18 being open to the atmosphere at 21. In a three-phase arrangement, the bushings may be attached to the curved surface of a cylindrical container in two rows opposite each other. Both contacts may be movable.
Patent GB-729071-A (GB)
Title: Improvements in magnetic coupling devices
IPC: F16D37/02
Filed: 1952-11-20
Abstract: 729,071. Magnetic fluid couplings and brakes. BENDIX AVIATION CORPORATION. Nov. 20, 1952 [Nov. 29, 1951], No. 29376/52. Class 35. A magnetic fluid clutch or brake, shown as a clutch, comprises a magnetic driving cylinder 14 carrying a coil 30 and defining a cylindrical air gap 36 containing a mixture of iron powder and graphite powder, a .non-magnetic cup-shaped driven member 39 being keyed to a driven shaft 22 and having a cylindrical portion 38 provided with slots 49 which lie in the air gap so as to intersect the flux lines of the field. On energization of the coil 30 the iron powder &c apparently forms links or chains which extend through the slots 49 to couple the driving and driven members. The driven member is provided with baffles 60 co-operating with baffles 58 on the driving member to oppose movement of the magnetic powder out of the air gap and to return any powder to the air gap which does so move. The cylinder 14 is driven through a bevel gear 63 and the driven member 39 maybe, e.g., made of aluminium, the light weight of this material reducing its inertia. Reference has been directed by the Comptroller to Specification 649,553, [Group XXXIV].
Patent GB-539618-A (GB)
Title: Improvements in or relating to the heat treatment of light metals and alloys
IPC: C22F1/04
Filed: 1939-11-06
Abstract: 539,618. Heat-treating light metals and alloys. LOBLEY, A. G.. and BIRMINGHAM ELECTRIC FURNACES, Ltd. Nov. 6, 1939, No. 29423. [Class 72] In the heat treatment of light metals or alloys, the heated metals &c. are quenched by delivering a fluid current such as air, to the work charge at the full pre-determined velocity immediately the quenching operation is commenced so that the full effect of the cooling is applied to the whole of the metal at the outset practically simultaneously and uniformly. The fluid current is produced by a fan having a controlling valve on its delivery side, the valve being opened when the fan is driven at a speed to give the predetermined velocity required. A spray of liquid may be delivered into the air current before it enters the chamber containing the metals &c. and the spray is ,controlled by a valve which is opened simultaneously, preferably electrically, with the air-controlling valve.
Patent GB-460608-A (GB)
Title: Improvements in or relating to the manufacture of knitted goods with an elastic thread insertion
IPC: D04B1/18
Filed: 1935-10-25
Abstract: 460,608. Knitting. DORE ET FILS. Oct. 25, 1935, No. 29482. Convention date, Nov. 20, 1934. [Class 74 (ii)] An elastic weft thread is fed in at spaced courses and is knitted alone at spaced wales without being plated by a textile thread, the body of the knitted article being constituted by ordinary textile threads. When a certain number of plain courses have been knitted the last plain course is suspended from the shanks of the needles 2, the knitted courses being supported by the comb 5 whilst the sinkers 4 engage above the knitted courses. After feeding in an elastic weft thread 1 the needles 2 are lowered whilst simultaneously pressing means such as presser fingers 3 act on the beards of certain needles after the beards have enclosed the elastic thread and thus on these needles the loops of the previous course ride over the pressed beards, whilst the previously formed loops together with the elastic thread, move into the beards of the unpressed needles. The pressers fingers are then disengaged from the needles which continue to descend. The sinkers 4 are then advanced whilst the needles descend again, to cause the needles which were pressed to draw stitch loops such as 11, of the elastic thread. Finally, the sinkers are retracted and, as the needles ascend, resume their initial position. This sequence of operations is followed by a normal course of textile loops. Different effects may be obtained by varying the number and arrangement of fingers 3. For ornamental purposes, the elastic weft may be fed in under tension. The elastic loops may be staggered in successive elastic wefts, by longitudinal displacement of the bar carrying the presser fingers. To inhibit laddering upon breaking of an elastic weft, in one of the courses preceding the insertion of an elastic weft, the loop 10 of the needle which will knit a loop 11 from the elastic thread is transferred back to the adjacent needle. The fabric may replace a rubber band in the tops of stockings &c., and may-be used for ordinary or orthopµdic hosiery or the like.
Patent GB-617074-A (GB)
Title: Improvements relating to horticultural appliances
IPC: A01G13/04
Filed: 1945-11-06
Abstract: 617,074. Plant protectors. GORING, H. A. O. Nov. 6, 1945. No. 29574. [Class 6 (ii)] [Also in Group XVII] A plant covering device is in the form of a tube 1 constructed of transparent flexible material of a moisture-proof nature, both ends of the tube being provided with means whereby such ends may be drawn together to close or partially close them. The Provisional Specification states that the device may be in the form of a bag of block bottom construction with or without gusseted sides or may be of circular or rectangular cross-section.
Patent GB-1475548-A (GB)
Title: Control systems
IPC: B25J9/18
Filed: 1974-07-04
Abstract: 1475548 Automatic control systems KAWASAKI HEAVY INDUSTRIES Ltd 4 July 1974 [9 July 1973] 29588/74 Heading G3N An automatic control system for a manipulator includes a store for a plurality of predetermined equally spaced points on a path, a linear interpolator adapted to calculate desired values of a number of interpolated points between a pair of adjacent predetermined points, and a manipulator control determining the difference between the interpolated points and the actual position of the manipulator, and moves the manipulator, at a velocity dependent upon the difference, so as to reduce the difference. As shown, for use with an hydraulically controlled welding torch, the interpolated points are calculated by linear interpolator 109 from the information regarding the predetermined points in store 109 as determined from a previous "teach" mode, the interpolation being made at predetermined times, as determined by a clock circuit 112, 113. The interpolated positions are compared at 106 with the actual manipulator position as sensed by encoder 104, and scanner 105, any difference passing via a D-A converter 107 to an integrating demodulator 108 that controls, at a velocity dependent upon the difference, the manipulator position. Whenever the manipulator has moved a distance equal to the spacing of the predetermined points, the actual sensed position is passed to store 109 to update its memory. In this way the correct pair of adjacent predetermined points for the interpolation are sent to interpolator 110, and other operations of the manipulator may be initiated when the predetermined points are reached. The manipulator position may be sensed and con-  trolled in all of its four directions of freedom. The store 109 may be a magnetic core, disc or drum, and the interpolator may be as described with reference to Fig. 6 (not shown).
Patent GB-1156701-A (GB)
Title: Improvements in or relating to Coal-Getting Apparatus.
IPC: E21F13/10
Filed: 1966-07-01
Abstract: 1,156,701. Mineral - mining installation. GEWERKSCHAFT EISENHUTTE WESTFALIA. 1 July, 1966 [3 July, 1965], No. 29703/66. Heading E1F. In a mineral-mining installation in which the driving gear for a mining machine-guiding face conveyor is so disposed in a roadway at the end of a face that the upper conveying run of the conveyor 5 remains parallel to the floor of the face as it leaves the face to pass down about the drive drum 4 before returning along the face there is provided in the roadway a .separate support structure for receiving the mining machine as it completes cutting of the face. This arrangement facilitates the mining machine completely cutting the face without the necessity of forming stable holes.
Patent GB-1361622-A (GB)
Title: Piezoelectric resonators and filters
IPC: H03H9/17
Filed: 1971-06-24
Abstract: 1361622 Bandpass filters VERNITRON CORP 24 June 1971 [24 June 1970] 29756/71 Heading H3U [Also in Division H1] A bandpass filter comprises vacuum deposited electrodes 3, 4; 9, 10 supported on a plate 1 piezoelectric at least in the neighbourhood of the electrodes and polarized so that extensional vibrations are set up in the width direction, the width governing the pass frequencies. Energy trapping occurs, vibrations taking place only close to the electrodes. Connections from terminals 18, 19 are made to the electrode centres for excitation at the fundamental frequency, or may be one-sixth of the way from an electrode end for the first harmonic. Silicone rubber or epoxy resin pads damp lengthwise vibrations, and may support the plate in a protective housing. Alternatively, terminations 18, 21 may pass through the housing and support the plate 1. The impedance of the filter is determined by the thickness of the plate 1 and may be controlled by varying the thickness. For higher impedance, the plate may be polarized through its width so as to be excitable by electrodes on opposite lateral edges of the plate, Fig. 4 (not shown). The electrodes 3, 10 may be replaced by a single lower electrode. Resistors 27, 23 provide correct terminations for the filter. The width of plate 1 is ground to size from a slightly larger dimension to determine precise frequency characteristics. The electrodes are either equal to, or slightly shorter than the plate width, and may be used to polarize the plate. Alternatively, other electrodes may be used for polarization, before the assembly of the filter electrodes. Fig. 1 (not shown) displays a resonator connected in an arrangement for testing the resonance characteristics of a single pair of electrodes, current peaks being detected by ammeter (24) at resonances. A bandpass filter may have four upper electrodes (33-36), Fig. 5 (not shown), and a single lower electrode (37). Alternatively, four lower electrodes may be provided. The plate 1 may be lead zirconate, lead titanate, or a combination of these two materials, barium titanate, lead metaniobate or X cut quartz with its Y axis parallel to the plate width. Conducting strips (30, 31), Fig. 1a (not shown), may connect the electrodes to terminals on an end of the plate 1.
Patent GB-899731-A (GB)
Title: Improvements relating to endless elevator conveyors
IPC: B65G69/00
Filed: 1957-09-21
Abstract: 899,731. Conveying farm produce. FERREIRA, P. D. F. Sept. 12, 1958 [Sept. 21, 1957], No. 29762/57. Class 78 (1). An auxiliary endless-belt conveyer is pivoted to a main endless belt conveyer so as to swing in a horizontal plane. Thus main conveyer 1 carries a framework 2, 3 so that the horizontal auxiliary belt (not shown) carried by framework 4, 7 can pivot at 6, 8 so as to be swung horizontally either by hand or by power, and to facilitate this the drive from the main conveyer to the auxiliary conveyer passes through belt 9, pulley 10, double pulleys 12, 13, double belt 21, 22 and double pulleys 14, 15, the double belts being arranged along the pivotal axis. Drive for swinging movement (Fig. 1).-Gearbox 42 driven from main conveyer drive causes framework 4, 7 of the auxiliary belt to pivot about 5, the drive passing in sequence through crank arm 39, roller 38 sliding in slot 37 formed in arm 35 pivoted at 36, rod 28 pivoted at 34 to arm 35, and roller 27 sliding in slot 26 of bar 23 pivoted at 5. Additionally roller 38 works in slot 40 formed in the crank arm 39 and roller 27 is carried by link 30 pivoted at 31. Thus, gear-box 42 causes arm 35 to rock about 36, and framework 4, 7 to rock about 5, the arrangement being such that the latter rocking movement is caused to be regular, i.e. without " dwell " at its ends.
Patent GB-930386-A (GB)
Title: Improvements in or relating to cathode ray tubes
Inventor: CALLICK ERIC BRIAN BUTLER
IPC: H04N7/01
Filed: 1960-08-29
Abstract: 930,386. Cathode - ray storage tubes. ENGLISH ELECTRIC VALVE CO. Ltd. May 4, 1961 [Aug. 29, 1960], No. 29767/60. Class 39 (1). A scan conversion cathode-ray tube comprises an electron gun 9 adapted to scan a charge-storing mesh 6 with an electron beam modulated in accordance with a first set of standards, an electron source 8 for projecting a uniform flood of electrons towards the mesh 6, a charge-storing target 4 positioned to receive flood electrons passing through mesh 6, and an electron gun 1 adapted to scan target 4 in accordance with a second set of standards to derive output signals. As shown, the part of the tube comprising electron gun 1, and an associated electron multiplier, and glass target 4 may be similar to the corresponding parts of an image orthicon tube. The dielectric mesh 6 and associated collector mesh 7 may be replaced by a storage mesh structure including a grid on each side as described in Specification 900,365. The writing gun 9 may be arranged on the tube axis, the flood gun 8 being replaced by a large area cathode extending right across the tube, Fig. 2 (not shown). Erasure pulses controlled by frame synchronizing pulses from the input or output signals may be applied to the backing electrode of the storage mesh 6.
Patent GB-1010113-A (GB)
Title: Improvements in or relating to deflection coil assemblies for cathode ray tubes
Inventor: KING ARTHUR EDWARD
IPC: H01J29/76
Filed: 1962-08-03
Abstract: 1,010,113. Electron beam deflecting apparatus. E. K. COLE Ltd. July 26, 1963 [Aug. 3, 1962], No. 29830/62. Heading H1D. A cathode-ray tube deflection coil assembly comprises toroidal frame deflection L1, L2 coils wound on yoke C and line deflection saddle coils L3, L4 supported by an insulating bell-shaped sleeve B within the yoke, the yoke, sleeve and line deflection coils being so shaped that the sleeve can be inserted or removed without dismantling the yoke. The rear ends of the line deflection coils subtend an angle less than 90 degrees to the longitudinal axis of the assembly and the line deflection coils are spaced from each other by ribbed insulating strips R. The yoke is in two halves clamped together by a brass strap D and the sleeve B is a single moulding. The coils L3, L4 are formed on a flat mandrel and then bent into the required shapes. A tagboard T for the coil terminals may also carry raster correcting flexible plastic magnets.
Patent GB-465158-A (GB)
Title: Improvements in or relating to apparatus for controlling the operation of machine tools using fixed or movable cutters
IPC: B23Q17/00
Filed: 1935-10-29
Abstract: 465,158. Indicators for displaying variable information. MURRAY COLOUR CONTROLS, Ltd., and MURRAY, G. L. Oct. 29, 1935, No. 29854. [Class 118 (i)] [Also in Group XXII] For displaying indications of speeds, feeds, diameters of work or other information required in the correct operation of a machine, an operation indicator with a removable chart marked with working dimensions or a series of operations, is used in conjunction with a pointer movable relatively thereto, to indicate or determine the correct position of the, or each, control handle. The operation indicator 1, Fig. 9, is adapted to carry a removable chart 2 and may be marked with a sequence of numbers, the action of setting the knob 10 and pointer 5 to the numbers in order, displays a series of indications through the windows 41 of an adjacent dial. These indications may be coloured, and show, in the manner explained in Specification 433,302, the correct position to which the control handles of the machine must be placed to carry out the series of operations represented by the numbers on the removable chart. A modified operation indicator, Fig. 12, has windows 50, for the colour or other control handle indications, spaced around the holder for the removable chart 2. The pointer 17 is set by rotating the knurled ring 48 and may be positioned according to the marks on the removable chart or by markings such as speed indications on the cover 14. When. this is flapped down, the back of the holder may also be used for chalk or other markings which may easily be removed. The removable charts may also bear explanatory data and /or a replica of the work to which it relates, these may then be stored for future use in connection with the manufacture of workpieces to which they relate. The charts are prepared by the use of a mechanical calculator such as described in Specification 458,858, [Group XXII]. The calculator is coupled up to an operation indicator provided with a blank chart and when the calculator has been set to the known dimensions of the work, cutting speed, &c., corresponding to the first operation, a mark is made on the chart adjacent the pointer to denote this and the same procedure repeated for the sequence of operations to be performed on the workpiece. The charts may thus be marked up in a Rate Fixing or Planning department or they may be marked up on a machine provided with the necessary apparatus. The combination of an operation indicator 1, Fig. 13, a control indicator 52, for showing the positions to which control handles 51 must be placed in the desired operation of the machine, and a mechanical calculator 26 enables charts to be marked up and subsequently used for facilitating the operation on the same machine.
Patent GB-402584-A (GB)
Title: Improvements in or relating to snow clearing devices for attachment to road vehicles
IPC: E01H5/06
Filed: 1932-10-25
Abstract: 402,584. Snow-ploughs. BUNCE, W. J., Ivy House, Idston Road, Ashbury, Swindon. Oct. 25, 1932, No. 29864. [Class 107.] Relates to snow-ploughs in which the working blade T is mounted on a board M adapted for ready attachment to a road vehicle, and consists in providing a blade formed in a number of sections each pivotally mounted on the board so as to yield when passing an obstacle. Fig. 3 shows a blade section T adapted to rock inwardly against the action of a spring C' surrounding a bolt B fixed to the board.
Patent GB-296593-A (GB)
Title: Improvements in and relating to a device for removing crown-corks from bottles
IPC: B67B7/16
Filed: 1927-11-09
Abstract: 296,593. Quinn, T. Nov. 9, 1927. Stopper keys and like appliances.-Relates to combined crown-cork removers and receptacles for corks, drippings &c. According to the invention the crowncork remover comprises a strip of metal A the upper end B of which is bent to form a hood with an abutment which engages the cork and removes it when the bottle is given a downward angular motion. A box E is attached to the lower end of the strip A to catch the corks &c. The box E has a sliding or hinged imperforate bottom F to facilitate the removal of the corks therefrom. The box E may be substituted by a metal cage with a removable basket or liner.
Patent GB-894967-A (GB)
Title: Bowls collector and remover
IPC: A63B47/00
Filed: 1959-09-03
Abstract: 894,967. Hand trucks. MARR, D. B. Nov. 16, 1959 [Sept. 3, 1959], No. 30018/59. Class 108(1). A truck for collecting and removing bowls from a green comprises a frame a, b, c, of plate material or tubes stiffened by an upper member d, the frame being mounted on castor wheels at e, e<SP>1</SP> and e<SP>2</SP>. A propelling handle g is secured to a hinge k or is rigidly secured to the frame.
Patent GB-607305-A (GB)
Title: Cupboard lock
IPC: E05C3/16
Filed: 1945-11-09
Abstract: 607,305. Door latches. DOEBELI, O., EGLE, A., GERMANN, A., and WENDE, H. Nov. 9, 1945, No. 30031. Convention date, Nov. 13, 1944. [Class 44] A cupboard fastening comprises a spring- loaded two-armed lever 5, Fig. 1, pivoted at 6 to an apertured plate 2 fixed inside the door 1, one end of the lever being adapted to engage a nose 21 on the door-frame. Release is effected by depression of a spring-biassed member 17, Fig. 2, slidably mounted on the handle 14 and having a core 18 formed with an inclined slot engaging the chamfered end 13 of a slide-bar 12, the other end of which engages a depression 11 in a limb of the lever 5. The lever 5 may be fitted with a roller where it makes contact with the nose 21 to reduce friction. In a modification for heavy doors, Fig. 4, the catch 23 is provided with a further catch 24 pressed by the spring 26 against a slot cut in the lower wall of the catch 23, in the open position, as shown. When the door is pushed to, the catch 23 is first pressed back behind the nose 21 by the spring 28, the second catch 24 then pressing with its nose 27 against the nose 21, so that only its pivot 25 can follow the movement of the catch 23. In this way a knee-lever movement is produced by which the door 1 is closely pressed against the jamb 20.
Patent GB-370055-A (GB)
Title: An improved method of packing eggs for market
IPC: B65D85/32
Filed: 1930-10-07
Abstract: 370,055. Egg cases. SAINSBURY, G. W. J., 6, Trafalgar Street, Onehuga, New Zealand. Oct. 7, 1930, No. 30058. Convention date, Oct. 16, 1929. [Class 18.] A filler for an ea case consists of in tersecting laths of strawboard &c. which car assume the flat form shown in the Figure the compartments a1 the edges having only three sides, a fourth side for these compartments being constituted by a cushion of strawboard or other sheet material corrugated or otherwise suitably soft extending more or less completely over and intended to be attached to the four sides of the case. Specification 214,898, [Class 18, Boxes &c.], is referred to.
Patent GB-285592-A (GB)
Title: Improvements in or relating to lifting jacks for coal cutting machines and the like
IPC: E21C35/06
Filed: 1926-11-27
Abstract: 285,592. Black, W. C. Nov. 27, 1926. Coal-cutting machines. -The frame 1 of a coalcutting machine is mounted on the base-plate 5 at three points, one point consisting of a swivel connection, not shown, and the other two points comprising balljoints 2 mounted in sockets on the base-plate and forming supports for screw jacks. The balljoints are eccentrically mounted in screwed sleeves 11 within which the lifting screws 10 are mounted. The lifting screws are fitted at their upper ends with shoulders 19 and locking nuts 21 engaging plates 23 secured to the frame so that by rotating the polygonal head 25 of either screw, the frame is raised at one side and tilted, the eccentricity of the axes a, b of the screws and ball-joints allowing the required relative lateral adjustment of the screws.