baber/WOPTO huggingface dataset:
Patent GB-807544-A (GB)
Title: Improvements in or relating to instruments for testing for earthing faults in electric circuits
IPC: G01R27/18
Filed: 1954-10-15
Abstract: 807,544. Electric tests. BRITISH CENTRAL ELECTRICAL CO. Ltd., and MALKIN, G. C. Jan. 16, 1956 [Oct. 15, 1954], No. 29821/54. Class 37. The secondary of a mains-fed transformer is used as a voltage source for testing appliances for earthing faults and a switch is provided to enable the transformer to test the continuity of both the earth and neutral conductor of the supply mains. As shown, a three-pin plug 16 is connected so that when plugged into a socket pin 13 is earthed and pins 14 and 15 connected to line and neutral respectively. Line and neutral are connected through the reversing switch 19 and switch 24 to the primary of transformer 25. The transformer secondary is connected to a two-way double-pole switch 32 which, in its upper position, connects the transformer secondary through ammeter 31 to the earth pin of a socket 35 in which the appliance to be tested is plugged and the wander lead 39 which is clipped to the frame of the appliance, and in its lower position connects the secondary through ammeter 31 to the line and neutral of the supply. Fuses 30 and an instantaneous thermal trip 42 are provided. In use, when plug 16 is joined to the mains one or other of gas discharge tubes 26, 27 fires. If tube 26 fires the line and neutral connection in plug 16 are connected. If tube 27 fires reversing switch 19 is operated. Switch 24 then connects the supply to the transformer primary. When switch 32 is in its upper position ammeter 31 indicates the current between the frame of the appliance and the earth connection. In the lower position, if there are no faults in the earth and neutral conductors of the supply mains, these two conductors are in series with the transformer secondary and ammeter 31 which may be calibrated in terms of line resistance. The ammeter may be provided with a shunt and a pair of scales or may be calibrated with a number of different scales appropriate to different supply voltages and transformer and meter impedances. A failure in the earth wire will light both lamps 26, 27. Reversing switch 54 enables the reading of the ammeter 31 to be connected for voltages between the earth and neutral by repeating these readings and taking the average. In an alternative embodiment (Fig. 2, not shown) a different type of reversing switch replaces switch 19 and a single discharge lamp connected between line and earth lights or not according as pins 14, 15 are correctly connected. Specification 543,660 is referred to.
Patent GB-353781-A (GB)
Title: Improvements in cooling arrangements for fuel-injection valves of internal combustion engines
IPC: F02M53/04
Filed: 1930-10-06
Abstract: 353,781. Fuel injectors. SWISS LOCOMOTIVE & MACHINE WORKS, Winterthur, Switzerland. Oct. 6, 1930, No. 29898. Convention date, Oct. 8, 1929. [Class 7 (iii).] A solid-injection fuelspraying device is cooled by fuel which escapes along the spindle of a spraying-valve, the cooling being supplemented, if necessary, by fluid circulated through a jacket provided for the purpose. As shown in Fig., fuel escapes along the spindle of a valve 2, passes into a chamber 3, and is circulated by passages 13, 14 through a chamber 11 surrounding a valve guide 12. The passages are inclined so to impart a rotary motion to the fuel. Another cooling-medium, preferably water, may be circulated through the chamber 19, 15, 20.
Patent GB-823846-A (GB)
Title: Improvements in or relating to ultrasonic delay lines
IPC: H03H9/36
Filed: 1955-10-20
Abstract: 823,846. Ultrasonic delay lines. HAMMOND, V. J. Oct. 18, 1956 [Oct. 20, 1955], No. 29954/55. Class 40 (8). In a ultrasonic delay line, incorporating a polyhydral plate of acoustic wave-transmitting material, e.g. quartz, said plate being bounded by a number of parallel walls, energy is directed from the level of an input transducer 16 after surface reflections at that level to that of an output transducer 17, which subsequently picks up the energy after surface reflections at the latter level, by a reflecting means 18. The quartz body has parallel circumferential sides 1-14, Fig. 1 (not shown). Wave energy enters the body via crystal transducer 16 on side 3 and on reaching the prism 18 on side 12, which prism has mutually perpendicular reflecting faces 19, 20, is reflected to a lower level and retraces its path to side 3 where crystal transducer 17 converts it to an output signal at the latter level. A groove 15 filled with acoustic damping material, e.g. silver paint, may be provided between the two levels when these are formed integrally, and the prism 18 may be integral with said body.
Patent GB-450438-A (GB)
Title: Improvements relating to the production of steatite ware
IPC: C04B35/16
Filed: 1935-10-30
Abstract: 450,438. Firing steatite ware. STEATIT - MAGNESIA AKT. - GES., 8, Florastrasse, Pankow, Berlin. Oct. 30, 1935, No. 30018. Convention date, Oct. 31, 1934. [Class 87 (i)] Steatite ware made from talc or soapstone containing iron, is produced of uniform colour and crystal structure throughout, that is without a firing skin and free from stress, by carrying out the whole firing operation, including cooling, in a reducing atmosphere. After the firing at maximum temperature the kiln is sealed and reducing gases are developed therein, for example by the incomplete combustion of strongly-gasifying fuel such as oil or bituminous coal on the furnace grate or in the kiln, until the ware is cooled below the temperature of visible red heat.
Patent GB-894683-A (GB)
Title: Improvements in, and relating to, nested capsules
Inventor: ROBINSON HENRY WILLIAM
IPC: B65D63/10
Filed: 1959-09-03
Abstract: 894,683. Packaging. BETTS & CO. Ltd. Sept. 2, 1960 [Sept. 3, 1959], No. 30050/59. Class 94(1). Nested capsules are secured together by an adhesive tape 2, the capsules being loosely nested, the tape applied and the capsules then pressed together. The excess tape may form a protective folded layer 3 between adjacent capsules or may project outwardly. A plug may be inserted in the end capsule, and the whole stick of capsules may be wrapped.
Patent GB-830126-A (GB)
Title: Improvements in or relating to ear-clips
IPC: A44C7/00
Filed: 1958-09-19
Abstract: 830,126. Earclips. ILSEN, H. Sept. 19, 1958, No. 30061/58. Class 43. An earclip has a spring ear engaging presser 10 pivoted to a pivot member 15 which has a tongue-like projection 17 engaging in a slit or recess 21 in a disc 18 mounting an ornament. The projection 17 is bifurcated and the outer ends diverge outwardly to a width slightly greater than the width of the slit. The presser 10 has side limbs 11 and a central resilient finger 12 which engages the pivot member. The limbs have lateral projections 13 which engage in apertures in turned down lugs 14 on the pivot member 15.
Patent GB-411747-A (GB)
Title: Improved method for the manufacture and stacking of bottle and like container closures, and closures for use therein
Filed: 1933-10-30
Abstract: 411,747. Closure discs for milk-bottles. TENNANT, W. J., 111, Hatton Garden, London.-(Crown Cork & Seal Co., Inc. ; Highlandtown, Baltimore, U.S.A.) Oct. 30, 1933, No. 30133. [Classes 125 (ii) and 125 (iii).] Relates to laminated discs for milk-bottles, of the type having a marginal shoulder which is pressed over the bead on the bottle, and which comprises an outer metallic and inner fibrous layer as described in Specification 374,758. According to the invention the discs are provided withanti-nesting protuberances 33 formed in the shoulders thereof, and on the outer or metallic side. A series of ten dies in staggered relationship and having variously spaced nicks or grooves for producing the protuberances is described and shown. The discs are delivered to a conveyer and thence to a stacker in such a manner that no disc has corresponding protuberances to an adjacent one.
Patent GB-206698-A (GB)
Title: A new or improved means for grooving milling stones
IPC: B28D1/26
Filed: 1922-11-04
Abstract: 206,698. Reeve, P. H. Nov. 4, 1922. Dressing by percussion. - Mill stones are grooved by one or more hammers 15 operated by cams 19 on a shaft driven electrically or otherwise by means of a clutch 24 and gearing 21. The hammers are mounted in a carrier 5 movable laterally along a rack 7<a>, whilst the carrier with the bearers 6, 7 can be moved along a rack 4 fixed to the framework which is clamped to the stone. A handle 25 serves to put one hammer out of action. A centrifugal fan or blower may be used for removing dust.
Patent GB-975674-A (GB)
Title: Core matrix assembly
IPC: H04L25/497
Filed: 1961-08-22
Abstract: 975,674. Magnetic storage apparatus. INTERNATIONAL BUSINESS MACHINES CORPORATION. Aug. 22, 1961 [Aug. 29, 1960], No. 30254/61. Heading H3B. A magnetic storage matrix is constructed by adhering magnetic tubes 12 of rectangular hysteresis loop material, Fig. 1, both to one another and to a ceramic or glass base plate 10, slicing the tubes at spaced intervals so as to form an array of separate cores 14a-14h, as shown in Fig. 2, and then wiring by inserting vertical column conductors Y 1 -Y 8  and diagonal row conductors X 1 -X 8 . The adhesive used may be glyptol-thyolite, quartz cement or a glass-like epoxy resin, and the slicing operation is performed by using an ultrasonic cutter or a diamond saw. The base-plate is stated to perform the function of a heat sink.
Patent GB-442959-A (GB)
Title: Improvements in or relating to rubbing surfaces for wash-bowls and wash-tubs, boards and other laundry apparatus
IPC: D06F1/00
Filed: 1934-10-23
Abstract: 442,959. Washing- apparatus. WEBSTER W. H., 7, Jubbergate York. Oct. 23, 1934, No 30323. [Class 138 (ii)] The rubbing surface of a wash-bowl, tub, or rub bing-board is providec with a series of circular depressions 2a alternat ing with a series of rounded protuberances 2b.
Patent GB-488780-A (GB)
Title: Improvements in cylinders for internal combustion engines
IPC: F02F1/16
Filed: 1937-11-05
Abstract: 488,780. Cylinders. TEBALDI, A. Nov. 5, 1937, No. 30362. Convention date, Nov. 6, 1936. [Class 7 (ii)] A liner 5 is screwed into a water-cooled extension 1<1> of a cylinder head and a sleevelike water jacket 7 is held by studs 14 which compress a packing 12. If the liner butts on the head extension, a space 13 is left for leaking cooling water to escape. A base flange 15 is held axially by a cotter 17, retained by a collar 18 screwed on to the liner.
Patent GB-339714-A (GB)
Title: Improvements in or relating to wireless aerial systems
Filed: 1929-10-07
Abstract: 339,714. Kirke, H. L. Oct. 7, 1929. Aerials.-An aerial comprises a non-radiating element i, Figs. 1 and 2 which consists of a winding g coiled on rods f mounted between two metal cylinders a, b, split respectively at g and e to prevent eddy currents, and fitted with annular end plates c. The inductance and capacity of the element i, per unit length is greater than that of the rest of the aerial, though the ratio of inductance to capacity is substantially the same as that of the aerial. This extends the effective or " electric, " length of the aerial and prevents distortion of the modulated wave due to any asymmetrical impedance thereby improving the operating characteristic for a given length. Instead of using the coil i as a terminal element, it may be inserted between two aerials l, m, Fig. 3, each less than half the working wavelength, whilst the coil i is electrically equivalent to more than half the working wavelength. This increases the radiating efficiency by maintaining the current in each aerial in the same phase, as shown by the full-line curve. A condenser may be inserted between the coil i and earth. The coil i may be surrounded by wire ribs, or it may consist of a pair of concentric coiled conductors, one of which may be earthed.
Patent GB-408358-A (GB)
Title: Improved method of printing duplicate colour photographs on a sensitive material having a mosaic screen
IPC: G03C7/04
Filed: 1932-10-29
Abstract: 408,358. Colour photography. MURRAY, H. D., and SPENCER, D. A., 118, Fulham Road, South Kensington, London. Oct. 29, 1932, No. 30395. [Class 98 (ii).] Lenticular negatives are copied, by projection, on to multicolour screen material comprising a panchromatic emulsion coated with a mosaic colour screen by the use of sharp cut, non-overlapping, banded filters which are appropriately situated in relation to the lenticular film, the transmission of such filters being confined within the limits of the mosaic colour filters so that, for example, the light passing through the red filter is only able to pass through the red elements of the mosaic screen. The different colours may be projected simultaneously or separately. With regular pattern mosaic screens, suitable devices may be employed to avoid moire effects. The invention is particularly applicable to kinematograph films, with or without a sound record. Specification 358,643 is referred to.
Patent GB-621036-A (GB)
Title: Improvements in and relating to a method of fixing crank shafts in grinding machines, and improvements in and for crank shaft grinding machines, and centering apparatus for use in the carrying out of the method
IPC: B24B5/42
Filed: 1945-11-14
Abstract: 621,036. Grinding crank shafts. HANSEN, A. E. Nov. 14, 1945, No. 30421. Convention date, Feb. 2. [Class 60] [Also in Group XXII] A method of fixing crank shafts in grinding machines, in which the crank shaft during the grinding of the connecting rod bearing journals is clamped with its outermost main bearing journals each to its face plate or corresponding fixing means, is characterized in that the connecting rod bearing journals to be ground in the particular fixing are first, independently of the face plates or the corresponding fixing means, centred so that their centre line coincides with the mutual axis of rotation of the latter (the centre line of the grinding machine), after which the two outermost main bearing journals are clamped to the face plates or the corresponding fixing means in their position in relation thereto determined by the centreing of the connecting rod bearing journals. A centreing bracket, Fig. 2, includes a part 2 slidably mounted on a horizontal keyway 13 on a part 1 and having a vertical centreing fork 7 slidable vertically on the said part 2 at a fixed distance B from a vertical plane surface 4 formed on the said part 2. A horizontal centreing fork 16 is fixed on the part 1 at a height H above plane surfaces 21, 22 formed on the said part and resting on a plane horizontal face of the machine table. In use, connecting rod bearing journals 9 are pressed into contact with the legs of the fork 16 by a finger 18 carried by the part 1, and the fork 7 is then moved vertically and its carrying part 2 horizontally until both legs of the fork 7 contact the journal 9. The parts 1 and 2 are then locked together by a bolt 14 and the bracket and the crankshaft moved so that the surface 4 engages a vertical side edge of the machine table. When the connecting rod bearing journals have thus been centred, the outer main bearing journals 34 are fixed to their face plates 24, Fig. 6, by means of clamps 33 carried on slides 30 adjustably fixed in diametral T grooves 25 in the face plates 24. The centreing forks need not be vertical and horizontal, and according to the manner in which the connecting rod bearing journal is placed in the forks it can either be ground so that the minimum amount of material is removed or so that the original centre is kept.
Patent GB-334415-A (GB)
Title: Improvements in and relating to devices for operating flushing valves
IPC: E03D1/34
Filed: 1929-10-08
Abstract: 334,415. Hollenweger, M. Oct. 8, 1929. Valve-discharge waterwaste preventers; overflow fittings.-A flushing valve c has an extension d, guided on a tube b secured to the valve seat a and provided with a float e; an overflow tube f is secured to the extension d by a member having projections h, engaged by forks i on a member secured to a rod l connected to a handleoperated lever n, a recess s limiting the amount of oscillation.
Patent GB-260791-A (GB)
Title: Improvements in cores for pipe moulds
IPC: B28B21/74
Filed: 1925-12-02
Abstract: 260,791. White, A. E., (International de Lavaud Manufacturing Corporation, Ltd.). Dec. 2, 1925. Centrifugal machines; moulding pipes and tubes.-Cores for the socket of centrifugally cast pipes comprise a plurality of metal segments secured in a recess in a ring attached to the mould. The segments 15 - - 18, Figs. 1 and 2, are secured in a counterbore in a ring 7 by studs 11 and wedges 14. The ring 7 is tapered to fit a recess 6 in the mould 1 to which it is secured by wedges 8. The coacting parts of the segments are all formed with cylindrical faces 19, 20 except that the coacting parts of 15, 18 are scarfed. This enables the segments, commencing with 18, to be withdrawn from the casting after the wedges 8, 14 and ring 7 have been removed. In a modification, Figs. 3 and 4, the core is formed in two large and two small segments 30, 29 hinged to lugs 27, 26 on a ring 23 which is secured to the mould by wedges. The segments 29 are shaped so that they can be swung out, after casting. The pivot pins 33 of the segments 30 are then rotated by a key so that cams '36 carried by the pins 33 engage projections 37 and move the segments 30 radially away from the casting. The segments 30 can then be swung outwardly. Bolts 39 are provided to hold the segments in this position. In the closed position. the cams 36 engage projections 38.
Patent GB-1110538-A (GB)
Title: Film threading devices
IPC: G03B1/56
Filed: 1966-07-07
Abstract: 1,110,538. Cine film threading devices. EASTMAN KODAK CO. July 7, 1966 [July 8, 1965J, No. 30620/66. Heading G2E. An automatic film-threading device, which may be used in a multiple-film projector, has a pivoting spring-loaded plastics stripper 24 which may engage the periphery of film roll 12 and so direct the film end 13 between guides 26, 27 to be engaged by claw 29, the film roll being driven on core 10 during this threading operation by the frictional engagement of its periphery with belt 15. Surfaces 30 and 32 of belt 15 and stripper 24 comprise a guideway, the belt passing over drive pulley 16 and a pivotable idle roller 17. Solenoids 36, 37 displace the roller 17 and stripper 24 to the threading position until de-energized by the signal from microswitch 38 when the claw has engaged the film. In another version, the film roll is driven by a pivotable rubber surfaced roller.
Patent GB-697630-A (GB)
Title: Improvements in or relating to safety release devices for tractor-drawn agriculturalimplements
IPC: A01B61/04
Filed: 1950-12-15
Abstract: 697,630. Agricultural implements. WYNESS, S. Dec. 17, 1951 [Dec. 15, 1950], No. 30625/50. Class 6(i) A safety release device for implements connected to power lift mechanism on a tractor comprises a slidably guided detent 15 resiliently pressed by one or more springs 18 against an end surface 9a of an abutment 9 projecting from a tool carrying member 7. The detent and abutment are movable between guide plates 10 :secured to the implement frame 4, the detent permitting the member 7 to rise and thereafter holding the member in raised position until the member is free to descend by its own weight or until the power lift mechanism is operated to lift the implement frame. As shown the detent comprises a block guided between the plates 10 and by means of a pin and slot means 16, the detent being pressed towards the end face of the abutment by means of compression springs 18 mounted on the two legs of a U-bolt 19 which is passed through slots in the guide plates and through the detent.
Patent GB-230182-A (GB)
Title: Improvements in or relating to collapsible containers
IPC: B65D33/12
Filed: 1923-12-06
Abstract: 230,182. Wrigley, F. Dec. 6, 1923. Securing bags, special means for. - In a collapsable paper bag of the kind in which the walls are creased at the mouth so that the bag presents a rectangular or similar formation when open, the walls are stiffened round the mouth bv a strip 18, the side walls serving to retain the mouth open. The creases are m groups of three so that two opposing walls move towards each other when the bag is collapsed. One wall may be extended to form a flap 19 which is adapted to cover the mouth of the bag and creased to correspond with one or more of the creases of the bag. A carrying-cord 29 passes through holes 28 in the side walls and flap, so that by pulling on the cord the flap is drawn over the closed mouth and is retained in position by the weight of the bag. The holes 28 are arranged in groups of three, which register when the bag is closed.
Patent GB-1198184-A (GB)
Title: Improvements in Lifting Platforms
Inventor: BLUNT GEORGE DANIEL
IPC: A61G3/06
Filed: 1968-06-28
Abstract: 1,198,184. Platform elevators on vehicles or buildings. MARTIN WALTER Ltd. 26 June, 1969 [28 June, 1968], No. 30944/68. Headings B8E and B8H. A stowable lifting mechanism for raising loads from the ground or other lower loading level to the floor level of a doorway 11 in the rear wall of a vehicle comprises substantially upright stanchions 10 on either side of the doorway 11, main pillars 12 mounted to slide in the stanchions 10 and subsidiary pillars 15 connected to the main pillars 12 by links 19, 20 pivoted at 21 to 24 to enable a folding platform 14 to throw clear of the vehicle floor. The platform 14 may be raised and lowered by a power unit 31 consisting of an electric motor driving a pump to supply liquid to a ram for controlling cables 29 connected to the pillars 12 over pulleys 30 at the upper end of the stanchions 10. The mechanism may be used to raise loads to the floor level of an opening in a building (not shown).
Patent GB-1424320-A (GB)
Title: Safety means to deter children from opening containers
IPC: B65D50/06
Filed: 1973-01-19
Abstract: 1424320 Safety closure BRISTOL-MYERS CO 19 Jan 1973 [19 Jan 1972 15 Nov 1972] 30991/75 Divided out of 1423402 Heading B8T A low profile flexible snap-on snap-off closure 1 for a bottle 2 has a roof 3 from which extends a downwardly and outwardly lateral skirt 4 on which are mounted lugs 6 to facilitate turning. A tab 5 parallel with roof 3 extends from the lower edge of the skirt 4. A bead (7) (Fig. 2, not shown) on the inside face of the skirt snaps over an annular bead (8) on the neck of the bottle 2, so that tab 5 flushly abuts flange 9 on bottle 2. Flange 9, which has a notch 11 longer than tab 5, has a larger diameter than the maximum diameter of closure 1 so that only when tab 5 is coincident with notch 11 can the closure be removed. Skip additives may be added to the thermoplastic polymeric materials used for both the bottle and closure to facilitate slip between the abutting surfaces. The closure 1 may be coated or impregnated with non-toxic unpleasant tasting substances to deter a child from attempting to remove the closure with its teeth. A stop, disclosed in Specification 1,423,402, may be provided on flange 9 to limit rotation of closure, as may a peripheral guard ring also disclosed.
Patent GB-743311-A (GB)
Title: Portable scaffold unit
Inventor: JOHNSON WALLACE JOHN STOCKMAN
IPC: E04G7/30
Filed: 1953-11-09
Abstract: 743,311. Hooks. UP-RIGHT, Inc. Nov. 9, 1953, No. 31013/53. Class 89 (2). [Also in Group X] A hook 27a for the detachable connection of the end of a brace 26 to a scaffold tube 18 is prevented from being accidentally detached by a sliding pin 30a. The pin is held in operative position by a spring 35 or gravity, and the hook is located by a pin 29a.