baber/WOPTO huggingface dataset:
Patent GB-1305092-A (GB)
IPC: G01N29/04
Filed: 1970-04-13
Abstract: 1305092 Measuring insulating thickness B ZUMBACH [trading as ZUMBACH ELECTRONIC-AUTOMATIC] 13 April 1970 [23 April 1969] 17345/70 Heading G1N In a device for determining the thickness of an insulating layer on an electrical conductor, a measuring head 10 is mounted on a split ring 40 which is in turn rotatably mounted, via rollers 42, in a split structure 41, the gaps in the ring and structure allowing movement of the device on to the moving cable 44. Rotation is provided by a reciprocating drive 43. The device is mounted in a rotatable block 49 biased by a spring 52 for weight compensation. (For Figure see next page)
Patent GB-858384-A (GB)
Title: Improvements in or relating to dielectric heating equipment
Inventor: TIBBS CHRISTOPHER EVAN MUNDELL
IPC: H05B6/48
Filed: 1958-05-30
Abstract: 858,384. R.F. couplings. RADIO HEATERS Ltd. May 26, 1959 [May 30, 1958], No. 17359/58. Class 40(7). In dielectric heating equipment designed to operate at frequencies above 25 mc/sec. the conductor coupling the oscillator output to the unearthed electrode may have a capacitance to earth comparable with the electrode itself resulting in a loss, as heat energy, in the output coil of approaching four times what the loss would be if the stray capacitance were not present. To reduce this loss, according to the invention, the output inductance of the generator is connected to the electrode through an additional inductance located closely adjacent to the electrode. This division of the electrode timing inductance enables the voltage on the output coil to be considerably reduced in a given heating application. In apparatus embodying the invention the oscillator output terminal may be linked to a hinged unit incorporating the upper electrode 15 of the heater by a flexible strip 20 pivotally connected to the strip 21 which is directly coupled to the end portion 22 of a strip forming the additional inductance. The strip is split as shown to form two coils extending in opposite directions from above the centre line of the electrode 15. The coils are rectangular in cross-section (Fig. 2, not shown) and at their ends 23, 24, are attached to the opposite sides of the electrode. In a heater using balanced electrodes. The output terminals 25 of the oscillator output coil 12 are connected by extended links 27 to the extreme outer edges of the electrodes 15a, 15b instead of being made as short as possible in conventional manner as indicated at 26. The extension of the coupling conductors is arranged to supply the required inductance. The invention may be applied to the heating equipment described in Specification 839,487, an additional inductance being inserted between each feeding strip connector and the electrode.
Patent GB-399616-A (GB)
Title: Improvements in modulating systems for carrier-wave signalling
IPC: H03C1/52
Filed: 1932-06-20
Abstract: 399,616. Valve-modulating circuits. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, NOBLE, H. R. and WESTELL, E. P. L., c/o General Electric Co., Stoke, Coventry. June 20, 1932, No. 17433. [Class 40 (v).] A modulating-circuit comprises a wheatstone bridge with the carrier applied to one diagonal and the modulated output taken from the other diagonal, the signal being employed to vary the resistance of one or more arms of the bridge, preferably constituted by triode valves, and so to vary the degree of unbalance of the bridge. As shown in Fig. 2, the carrier source O is coupled by a transformer T3 to two circuits which are coupled respectively by transformers T4, T5 to two of the bridge arms, thus applying the carrier wave across the diagonal A, B. Valves V1, V2 constituting the other bridge arms have their grids excited in opposite phase from a microphone transformer T6 and potentiometer P. The valves are differently biassed so as to unbalance the bridge and to transmit a carrier even though no modulation is present. The modulated carrier is taken from the diagonal C, D and applied to an amplifier M. The voice-frequency impedance of the arms AC, CB should be low. In a modification, the coils T4, T5 form a divided secondary coil to a primary coil in the circuit of the source O.
Patent GB-1305994-A (GB)
IPC: F23D14/00
Filed: 1970-04-13
Abstract: 1305994 Gas burners ESSO RESEARCH & ENG CO 13 April 1970 [27 June 1969] 17446/70 Heading F4T A gas burner 10 comprises a refractory-lined combustion chamber 20 with a circular discharge outlet and a circular inlet for the introduction of fuel and an air stream, a cylindrical swirl sleeve 2 fed with air from a plenum chamber 6 via tangential nozzles 3 to pass a swirling stream of air into the chamber 20, and a burner ring 4, preferably of triangular crosssection, containing ports 5 positioned adjacent the inlet so that gas discharged therefrom converges in the chamber, preferably at an angle substantially equal to the divergent angle of an annular fillet 14. Air passageways 16 permit air flow between plenum chamber 6 and chamber 20 to cool the ring which is positioned behind the inlet and thus substantially shielded from direct radiation from the combustion chamber.
Patent GB-204747-A (GB)
Title: Improvements in the valve mechanism of internal combustion engines
IPC: F01L5/02
Filed: 1922-06-26
Abstract: 204,747. Masters, W. S. June 26, 1922. Valves.-For ejecting the exhaust gases remaining in the clearance space, the exhaust valve C is made of large diameter so as to have a plunger action during its descent on the exhaust stroke. The valve C may be replaced by a disc or plunger not having any valve action, in which case the exhaust, as well as the inlet, is controlled by the sleeve valve E. The exhaust and inlet passages B, D are of annular construction as shown. The sleeve valve may also have a port cooperating with the spark-plug for ignition. Reference has been directed by the Comptroller to Specifications 28265/08, 1673/10, 108,087, and 119,057.
Patent GB-1168375-A (GB)
Title: Process for Producing Thick Clad Plates
IPC: B23K20/04
Filed: 1968-04-11
Abstract: 1,168,375. Making composite metal plates. VEREINIGTE OSTERREICHISCHE EISENUND STAHLWERKE A.G. 11 April, 1968 [13 April, 1967], No. 17492/68. Heading B3A. A method of making thick clad metal plates by hot rolling a sandwich composed of outer layers of base material and inner layers of cladding material, a stop weld being introduced between surfaces which are not to be bonded, is characterized by rolling the sandwich with a reduction of less than 66<SP>2</SP>/ 3 % to a thickness which is greater than the sum of the desired final thicknesses of the individual composite plates, and rolling each plate separately to the desired final thickness. The sandwich comprises two base-plates of carbon steel 402 mm. thick and two 38 mm. chromium nickel steel plates, the latter being separated by a layer of zirconium oxide. The sandwich is sealed by welding around its circumference and evacuated. The sandwich is then heated and rolled from a thickness of 880 mm. to 440 mm. to bond the cladding to the base. The top and bottom composite plates are separated and each rolled to a final thickness of 120 mm.
Patent GB-950835-A (GB)
Title: Improvements relating to rivet-like fastener devices
Inventor: RAPATA GEORGE MARTIN
IPC: F16B5/12
Filed: 1960-05-18
Abstract: 950,835. Stud and socket fastenings. ILLINOIS TOOL WORKS Inc. May 18, 1960, No. 17575/60. Heading E2B. [Also in Division F2] A rivet comprises a body 46, Fig. 1, of resilient material, e.g. nylon, with at least one slot 58 open at the side of shank 48, Fig. 2, and a pin 82 insertable between opposed faces of the slot to expand the shank. The head 50 of the body may have a sealing lip around its outer periphery to engage the adjacent surface of a workpiece 42, and the pin may have a similarly lipped head to engage head 50. The pin head may have a protrusion for locating a tool used to drive the pin. In a modification, the pin 82b, Fig. 8, is moulded integrally with the body 46b so that the connecting web 104 breaks when the pin is driven. In another arrangement, the head 50d, Fig. 13, is shaped to receive and hold a moulding 110, and in yet another arrangement, the body 46e, Fig. 15, and pin 82e are moulded together with an interconnecting part 154. In another modification, the pin 82f, Fig. 20, is of rectangular cross-section and the slot has wedge surfaces 74f, 76f. In yet another modification, the body is of circular crosssection with a radial slot.
Patent GB-438615-A (GB)
Title: Improvements relating to liquid control devices for metal cutting and other machines
IPC: B23Q5/26
Filed: 1934-06-14
Abstract: 438,615. Hydraulic transmission of power. BATEMAN, W. H., 33, Armorial Road, and WICKMAN, Ltd., A. C., Queen Victoria Road, both in Coventry. June 14, 1934, No. 17604. [Classes 69 (ii) and 135] A device for controlling the flow of operative liquid to machines, comprises a main flow passage h, flow restricting means having an orifice i, passages r, s leading to opposite ends of a valve o controlling a relief passage p, and loading means to bias the valve towards a position where it closes the passage p. As shown, the available area of the square orifice i is determined by the position of a slide j with a V-notch m, and the valve is acted on by a spring t, adjustable automatically or otherwise. The slide j may also be adjusted automatically. In modified forms, the spring t may be replaced by a weight, and a number of orifices of different areas are formed in a plate, which may be turned to bring any orifice in position in the passage h. The plate is secured in desired position by a spring catch.
Patent GB-1224610-A (GB)
Title: Improvements in/or relating to carburation devices for internal combustion engines
Inventor: HAERTEL GUENTER
IPC: F02M13/02
Filed: 1969-04-03
Abstract: 1,224,610. Spray carburettors. SOC INDUSTRIELLE DE BREVETS ET D'ETUDES. April 3, 1969 [April 8, 1968], No.17607/69. Heading F1B. In a carburettor having a principal feed circuit 6, 9, 8, Fig. 1, an idle circuit 17, 4 and a transfer circuit 19, 5, the idle circuit comprises at least one air inlet 22 and a fuel inlet 15 having respectively metering orifices 13, 11 and leading into a mixture channel 17 having an adjustable constriction 25, the mixture channel having a by-pass 28 which is opened automatically during periods of deceleration when the throttle member 3 is closed or almost closed. Idling: mixture is supplied exclusively via channel 17 in quantity regulated by screw 26 in orifice 25, when an electromagnet 44 is not energized an obturator 43 closes communication between a chamber 40 and the main mixture supply passage 1. The absence of a depression in chamber 40 allows a spring 42 to act on membrane 37 thereby seating obturator 39 in orifice 38 to close the by-pass 28. Deceleration: A known system 34 for counting the number of ignition breaks per unit time passes current through a conductor 35 when the engine speed is above a given limit to energize the electromagnet 44 thereby opening valve 43. The prevailing pressure in supply conduit 1 is transmitted to chamber 40 thereby raising membrane 37 to unseat obturator 39. The fuel/air mixture flowing through by-pass 28 is added to that flowing through orifice 25 and the total quantity that it is necessary to introduce during deceleration is determined by the pre-set screw 46. In another embodiment two carburetters are supplied by a common mixture channel (17), Fig.3  (not shown) supplied from fuel and air orifices (11a, 11b) (24a, 24b) which open into each Venturi throat (10a, 10b). In modifications the fuel for the idle and transfer circuits can be taken from chamber 6 upstream of orifice 9, the channels 17 and 19 can be connected to the conduit 1 downstream of throat 10 and orifice 13 can be omitted.
Patent GB-107922-A (GB)
Title: Improvements in Cases for Treasury Notes, Cheques, Bills or the like.
Inventor: HARWOOD JOHN
IPC: A45C1/06
Filed: 1916-12-08
Abstract: 107,922. Harwood, J. Dec. 8, 1916. Wallets etc.; bags, purses, &c. - A case for Treasury notes, cheques, bills, &c., is formed of two rectangular pieces of leather, &c., stitched together around the four edges, as shown in the opened out form in Fig. 1, the inner piece being cut to provide a pocket 2 and a movable flap 1. When the contents are inserted, the case may be folded along two or more vertical lines and secured by a fastener 3. Pockets for postage stamps may be provided on the part 2, and this part may sometimes be secured at both ends. In the construction shown in Fig. 5, the inner leather piece is secured to the outer along three edges only, leaving an insertion opening at 5, while withdrawal openings 6 are provided. The opening 5 may be omitted; also one of the openings 6 may be dispensed with, and the remaining one may sometimes be made in the outer leather piece. The opening at 5 may have a central fastener, and, as shown in Fig. 9, the part 15 may be a flap. Any of the constructions described may be formed from one piece of material folded along the middle, and they may be fitted with a disinfecting-pad or with a ring for attachment to a chain. They may also be gusseted, and may be secured by stitching &c. to the insides or outsides of satchels, handbags, wallets, purses, pocket-books, card cases, &c., and fastened by press-buttons, elastic-bands, clips, locks, &c.
Patent GB-1014172-A (GB)
Title: Improvements in or relating to door latches
Inventor: JAMES MICHAEL JOSEPH
IPC: E05C1/16
Filed: 1961-05-16
Abstract: 1,014,172. Latches. MICRO & PRECISION MOULDINGS (CHELTENHAM) Ltd. May 15, 1962 [May 16, 1961], No. 17712/61. Heading E2A. In a door latch having a releasing element 120 which is adapted for coupling to an operating shaft 9 passing through the door and engages, and displaces the latch bolt 3 to release the latch, the latch bolt 3 is, in addition to being bevelled on one side 14 for engagement with a striker 6 during door closure, has a steeper bevel on the other or trailing side 15 so that, when latched, the door can be opened without damage by applying thereto, an opening force considerably greater than that normally applied in use. As shown, in which the invention is applied to the latch disclosed in Specification 1,014,173, the latch bolt and striker are nylon mouldings and the length of the side 15 relative to the bolt axis is 11 degrees.
Patent GB-440161-A (GB)
Title: Improvements in and relating to control systems for electromagnets
IPC: B23Q3/154
Filed: 1935-06-20
Abstract: 440,161. Control systems for electromagnets. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. June 20, 1935, No. 17737. Convention date, June 21, 1934. [Class 38 (iv)] Switching systems.-The electromagnet 15 of a magnetic chuck or the like is de-magnetized by reversing its connections to the mains through a delayaction switch 24 which opens the reverse current circuit after a time sufficient to de - magnetize the magnet. An electromagnetic reversing switch 17 controls the connection of the magnet coil to the mains and is energized and de-energized by push-buttons 28, 31 and holding contacts 17a, 17b. The delay-action switch 24, which may be of any suitable type, comprises an electromagnetic relay, the contacts 24<a> of which are in series in the reverse circuit and the coil of which is energized from the mains to close its contacts when the switch 17 is in the normal operating position. Relay 24 is provided with a copper jacket 24<c> so that when the switch 17 is released for demagnetization and short-circuits coil 24<c> of relay 24, the field of the relay 24 collapses slowly and contacts 24<a> are not opened for a length of time predetermined by the adjustment of a spring 25 on the relay 24. A discharge resistance 27 is connected across the magnet coil 15.
Patent GB-362896-A (GB)
Title: Process and apparatus for the continuous baking of ceramic and other products
IPC: F27B1/00
Filed: 1930-06-07
Abstract: 362,896. Firing bricks &c. FOURMENT & LADUREE, 8, Rue de Bienfaisance, Paris. June 7, 1930, No. 17747. Convention date, June 22, 1929. Void [Published under Sect. 91 of the Acts]. [Class 51 (ii).] Shaft furnaces; discharging.- Bricks, and ceramic and other products, are fired in a shaft kiln from which the baked products are withdrawn at intervals after having been cooled by the inflowing air for combustion. The kiln shown is heated by gas from a producer 2 supplied through ports 3 and burnt with air which enters at the base of the kiln, and through passages 13. The waste gases escape through off takes 14. The charge is supported on a grate 6, which can be raised and lowered by screws 7, and when the kiln is used for bricks or fragile products, the charge is arranged so that bars can be inserted between the articles at the level 8 to act as a temporary support while fired articles are being removed.
Patent GB-765915-A (GB)
Title: Turbo-propeller jet propulsion motors
IPC: F02C3/067
Filed: 1953-05-06
Abstract: 765,915. Gas turbine engines; axial-flow compressors. BUCHI, A. May 6, 1953 [May 6, 1952], No. 17830/56. Divided out of 765,913. Classes 110 (1) and 110 (3). A gas turbine propeller engine comprises two contra-rotating turbine rotors 1, 30 each of which drives a set of vanes of a contra-rotating compressor. The low-pressure turbine rotor 30 is mounted on a shaft 32 and has two blade stages 311, 31 with a set of fixed blades 312 therebetween. Compressor rotor discs 175, 174, 173, 172, 171 and 17 are mounted on the shaft 32 and sets of vanes 155, 154, 153, 152, 151 and 15 are carried by the discs. The shaft 32 is mounted in bearings 6, 36. The high-pressure turbine rotor disc 1 is mounted on a hollow shaft 8 and has two blade stages 2<SP>1</SP>, 2 with a set of fixed blades 222 therebetween. A compressor rotor disc 9 is secured to the shaft 8 and carries vanes 14 and a screwed cover ring 16. The ring 16 is connected to a screwed cover ring 161 which in turn is connected to further cover rings 162, 163, 164, 165, 166, the cover rings carrying vanes 141, 142, 143, 144, 145, 146 and discs 91 to 96, the hubs of which are disposed close to the hubs of the discs mounted on the inner shaft 32. The screwed cover rings 16, 161, 162, 163, 164, 165, 166 together form a drum, the vane rows 141, 142, 143, 144, 145 being located midway of the respective cover rings and each cover ring is of such a width that the ends thereof surround the tips of the contrarotating vanes on either side of the vanes carried by the cover ring. The adjacent cover rings overlap each other axially and the overlapping parts are in screwed engagement. The hollow shaft 8 is mounted in bearings 5, 5<SP>1</SP> and the disc 96 at the inlet end of the drum is mounted in a bearing 21 located in the fixed disc 18 which carries inlet guide vanes 19. The bearing 36 is formed within the hub of the disc 96. The combustion equipment is indicated at C and the jet propulsion nozzle at D. A propeller 24 is driven from the shaft 32 by means of gearing 22, 23. A second embodiment is described having fewer compressor, stages, and having two contra-rotating propellers one driven through gearing from the inner shaft 32 and the other through gearing from the outer shaft 8.
Patent GB-110829-A (GB)
Title: Improvements in or relating to Attaching Protectors to the Heels and Soles of Boots and Shoes.
Inventor: SEDDON CHARLES
IPC: A43B21/44
Filed: 1916-12-12
Abstract: 110,829. Seddon, C., and Orton, G. H. Dec. 12, 1916. Protectors, inserting and attaching.-The whole of the studs, hob nails, or other protectors are driven into the heel or sole of a boot or shoe in one operation, and, in the case of a heel, preferably at the same time as the heel is attached to the boot. In one arrangement, the heads 3, Fig. 1, of the protectors are inserted in recesses 2 in a die plate 1, which is furnished with upstanding breast gauges 5 and spring fingers 7 for positioning purposes. The heel to be loaded is partially driven on to the points of the protectors, and the die plate and heel are then placed in the heelattaching machine. In another arrangement, the protectors may be inserted in a heel-building or a heel-compressing machine, and their heads may then be protected by a recessed plate during heelattaching. In another arrangement, a recessed die plate 11, Figs. 6 and 7, may be removably arranged in a carrier 12 provided with a base 13, the carrier being furnished with pins 14 to receive a positioning-member 15 into which a heel 8 is dropped; the insertion of the protectors is then carried out as before. The die plates may be magnetized. Reference has been directed by the Comptroller to Specifications 14749/90, 22865/95, and 6430/96, [all in Class 17, Boots &c.].
Patent GB-152754-A (GB)
Title: Improvements in and relating to turbine tube cleaners
IPC: F03B13/04
Filed: 1919-07-17
Abstract: 152,754. Henry J. July 17, 1919. Cleaning internally, rotary appliances for.-A turbine apparatus is driven by fluid pressure which is also utilized to keep the cleaning-knives in contact with the work, and for lubrication. The fixed wrought casing 1 contains a removable bronze or like body 2, coned seatings being provided at one or both ends to form joints. Fluid is admitted from a hose coupled at 1<B> through the chamber 2<C> to guide-passages 2<D> which are formed with dished surfaces 2<E> designed to minimize friction, to rotate the fluid, and to increase its velocity. The turbine wheel 6 is keyed to a shaft 4 which revolves inside a bush 3 fixed in the body 2, the end thrust being taken by a washer 5 and in part by balls 4<A> which serve to position the shaft. The balls are located in the bush 3 and adjusted by screws 2<G>. Fluid is admitted to a lubricating-member 4<C> through passages 3<C> and cored holes 2F. The revolving cleaning-head 10 carries pivoted blades 10<A> which are pressed outwards by centrifugal action and by a spear head 11<A> whose shaft 11 is acted on by fluid pressure and by a ram spindle 9, the enlarged head of which is under pressure. A longitudinal groove 9<A> admits water to lubricate the thrust washer 5, to press the head 11 outwards, and to cool the shaft 4.
Patent GB-1471522-A (GB)
Title: Electric motors and generators
IPC: H02K3/28
Filed: 1973-04-13
Abstract: 1471522 Winding layouts for dynamo-electric machines NATIONAL RESEARCH DEVEL. OPMENT CORP 3 April 1974 [13 April 1973 12 July 1973] 17943/73 and 33273/73 Heading H2A In a three phase machine utilizing pole amplitude modulation to switch from one speed to another, each phase comprises a number of coil groups spaced at substantially equal angles around the stator, the coil group distribution being approximately sinusoidal and the grouping is arranged such that for each phase a coil group occurs substantially at those points where the distribution curves crosses zero, there being no coils of the relevant phase at these points. Examples are shown of 8/10 pole machines wound in stators having 60 or 72 slots (Figs. 3, 6 not shown).
Patent GB-383913-A (GB)
Title: Improvements in and connected with pipe joints
IPC: F16L13/06
Filed: 1932-06-25
Abstract: 383,913. Pipe joints. BABCOCK & WILCOX, Ltd. and SMITH, F. H., Babcock House, Farringdon Street, London. June 25, 1932, No. 17974. [Class 99 (i).] In a welded joint a small gap F is provided between the flanges at the weld and one or more opposed grooves G is provided in each flange.