baber/WOPTO huggingface dataset:
Patent GB-819674-A (GB)
Title: Improvements in starting arrangements for mercury-arc and like rectifiers
Inventor: VERTIGEN DEREK HARRY
IPC: H01J13/34
Filed: 1956-10-09
Abstract: 819,674. Metal-vapour converters. METROPOLITAN-VICKERS ELECTRICAL CO. Ltd. Sept. 20, 1957 [Oct. 9, 1956], No. 30759/56. Class 39(1). A starting arrangement for a mercury-arc rectifier 1 having a main anode 2, cathode 3, excitation electrode 6 and ignition electrode 7 comprises a relay responsive to the voltage at the excitation electrode 6 and having normally open contacts IR1 connected in circuit with the ignition electrode 7 so as to apply a firing pulse to the rectifier when the voltage at the excitation electrode 6 is at or above a value greater than the normal operating value and to interrupt energization of the ignition electrode 7 in response to said voltage falling to or below the normal operating value. The relay is of the electro-pneumatic type, the contacts IR1 and IR2 being operated from a pressure or vacuum fluid source controlled by the coil IR, with a time delay introduced by limiting the flow of air into or out of the relay cylinder and/or by connecting the relay contacts to the operating piston through a lostmotion device. The relay may also be provided with a slugged coil. On connection of the transformer primary winding 8 to the supply, the capacitor 15 is charged by the full-wave rectifier 13 and the d.c. voltage from the halfwave rectifier 11, 12 is applied to the excitation electrode 6 and across the relay coil IR. This voltage is, in the absence of ionization in the rectifier 1, sufficient to operate the relay, thus closing the contacts IR 1 to apply a firing impulse from the capacitor 15 through the choke coil 16 to the ignition electrode 7, and opening the contacts IR2 to de-energize the coil IR and restore the contacts IR1 and IR2 to their normal positions. An additional pair of normally closed relay contacts may be connected in the charging circuit of the capacitor 15. If the rectifier is ionized by the first firing impulse, current flows between the excitation electrode 6 and the cathode 3 and the voltage across the coil IR is then insufficient to re-operate the relay. If the rectifier is not ionized, the relay is re-energized to apply further impulses to the electrode 7. In a modified arrangement, Fig. 2 (not shown) the relay contacts IR2 are replaced by the contacts of a timing switch which are operated by a cam driven by an electric motor, and the relay may be of the simple electro-magnetic type, operating without substantial time delay. This arrangement can be extended to start a bank of rectifiers by providing further cams to operate contacts connected in the starting arrangement of each rectifier.
Patent GB-307911-A (GB)
Abstract: 307,911. Bethenod, J. March 17, 1928, [Convention date]. Systems, electric.-If the speed of the engine driven dynamo 1 falls below a predetermined valve a resistance 8 is automatically inserted in series with the primary winding of the coil 4. A resistance 7 may be permanently in circuit, and the contact-breaker cam 5 is so formed as to give a constant time of closure. The resistance may also be varied by means of a rheostat having a sliding contact controlled by centrifugal force.
Patent GB-1248346-A (GB)
Title: Improvements in or relating to ball and socket joints
Inventor: PRICE BASIL ROLAND
IPC: F16C11/06
Filed: 1969-06-18
Abstract: 1,248,346. Ball joint. AUTOMOTIVE PRODUCTS CO. Ltd. 9 June, 1970 [18 June, 1969], No. 30795/69. Heading E2F. In a ball and socket joint the ball comprises a major sector 16 having a recess 17 open to its flat face, a minor sector 19 having a cylindrical rim 21 projecting from its flat face to fit tightly inthe said .recess, and spring means 22 mounted in the recess to urge the two sectors apart. The rim ensures that there is no relative sideways movement between the sectors, and the spring ensures firm bearing engagement. Passages may be provided in the two sectors of the ball to permit grease from a grease nipple 24 mounted in end cap 13 to reach the exterior of the major sector.
Patent GB-854220-A (GB)
Title: Improvements in or relating to building expansion joints
IPC: E04B1/68
Filed: 1957-10-02
Abstract: 854,220. Expansion joints. SMITH, C. A. V. Oct. 2, 1958 [Oct. 2, 1957], No. 30877/57. Class 20(4) An expansion joint to prevent cracking of rendering over a joint in the underlying structure, comprises two sections 12, 13 fixed to the structure and having overlapping sliding portions 12b, 13b so that plaster &c. can be applied (15, 16) flush with the joint and expansion movements relieved from the rendering. A coned angle and an internal mitre are also disclosed.
Patent GB-308795-A (GB)
Abstract: 308,795. Soc. Anon. A. AndrÚ Fils, and PÚrissÚ, R. Y. R. March 29, 1928, [Convention date]. Valves, arrangement of.- In a lubricator of the kind comprising a number of pumps 1 mounted in a reservoir 2, each pump has a piston valve 11 controlling the suction and delivery passages 7, 9, and two non- return valves 14, 15 in the delivery pipe 3. The piston valve has two annular recesses 12, 13, adapted to register respectively with the passages 7, 9, during the suction and delivery strokes of the pump plunger 4.
Patent GB-1157902-A (GB)
Title: Pressure Cooker
Inventor: ROSON BENJAMIN JUAN
IPC: A47J27/09
Filed: 1966-07-08
Abstract: 1,157,902. Pressure cooker. B. J. ROSON. 8 July, 1966, No. 30919/66. Heading B1X. [Also in Divisions 88 and F2] A pressure cooker comprises a vessel having an inwardly turned flanged rim, a lid 14 sealing against said rim, a valve passage 33 in said lid and. a stopper 26 having a valve stem 34 passing through and extending beyond said passage, at least one fluid passage being provided between said passage and valve stem whereby when internal pressure is sufficient to raise the stopper, discharge takes place. As shown, two -valve assemblies are provided and a stopper may comprise two parts 36a, 36b, the uppermost being removable. A handle 19 for the lid is attached by means of a flange 28 on the tubular body 27 providing the valve passage, and a rod 40 cranked at 42 is supported on, and parallel to, said handle so that'by rotation of the rod. the stopper may be raised to the position shown. Grooves may be provided in the valve stem to permit passage of fluid. A plug 43 of synthetic material is arranged in a bore through the lid and handle. Fig. 6 (not shown) illustrates a suitable member,53 restricting the upward movement of the stoppers, Figs. 7 and 8 (not shown) illustrate a suitable sealing ring for the lid and Figs. 9 and 10 (not shown) illustrate a two-section grid for food to be cooked in the cooker.
Patent GB-1043248-A (GB)
Title: Improvements in and relating to rotary regenerative heat exchangers
Inventor: HRYNISZAK WALDEMAN
IPC: F28D19/04
Filed: 1962-08-13
Abstract: 1,043,248. Thermal regenerators. C. A. PARSONS & CO. Ltd. July 31, 1963 [Aug. 13, 1962], No. 30974/62. Heading F4K. A thermal regenerator comprises at least one pair of rotary discs of heat storing material 1, 2, mounted facing one another in spaced, substantially parallel planes, and enclosed within a casing 3; one heat exchange fluid being admitted to the space between the discs and flowing in opposite directions through the discs to their outer faces, whilst at the same time, the other fluid flows to the outer faces of the discs, and thence to the space between the discs. The respective fluid paths through the discs are defined by radial seals 11 (Fig. 2, not shown). Peripheral seals 12 prevent the mixing of the two fluids. The gas or air to be heated enters the regenerator via inlets in the outer periphery, either, entering the space 5 between the discs, flowing through the discs to the outer spaces 6 and 7, and out through the outlets 6a, 7a in the outer periphery, as shown; or it may flow in the reverse direction (Fig. 3, not shown). The heating gas passes through the discs in the opposite direction to the gas being heated ; from inlets 8a, 9a to an outlet 10a, as shown; or, in the alternative form (Fig. 3, not shown) entering the space between the discs via a duct 14 located in the space 4. The hot exhaust gas passes through approximately twothirds of the disc; the gas to be heated passing through the remaining third.
Patent GB-358733-A (GB)
Title: Improvements in table game apparatus
IPC: A63F7/00
Filed: 1930-10-16
Abstract: 358,733. Table games. GILLARD, C. H., Swerdna, Westbourne Grove, Westcliff-on-Sea. Oct. 16, 1930, No. 31008. [Class 132 (ii).] Appliances for playing a game comprise a pair of tweezers 7, Fig. 4, balls and a board divided by diagonal or radial ribs 3 into triangular or other shaped fields or areas, the ribs 3 being cut short at the centre of the board so as to leave a plain distributing space 4 whence the balls can pass from one field or area intc another. The ribs 3 may be constructed from lengths of wire with the ends bent at right-angles and secured on the board with the wires at a little distance above the surface. In playing a game, the players each occupy a side of the board and project the balls from the tweezers by a squeezing action in an endeavour to shoot the balls across the central space 4 into their opponents' fields.
Patent GB-672632-A (GB)
Title: A device for threading fish onto spits
Inventor: SUNDT-HANSEN CARL
IPC: A22C25/10
Filed: 1950-12-20
Abstract: 672,632. Fish arranging. NORSKE HERMETIKFABRIKERS LANDSFORENING, and HANSEN, C. SUNDT-. Dec. 20, 1950, No. 31064/50. Class 28 (ii). In arranging fish in a row for threading on to a rod, or spit 19 which is then pushed through all the eyes of the fish, each fish slides down one of the inclined tubes 3 until its nose comes against one of the yieldable stops .13 which are independently pivoted on a fixed shaft 12 to press against the nose of the fish until the fish are all arranged in a row. After pushing the spit 19 through all the fish the spit and fish are moved away e.g. by hooks 20 of conveyer chains 21, the stops 13 yielding by pivoting upwards and resting on the back or belly of the fish trailing beneath. Each stop 13 has a stepped groove 14 between its depending side flanges 18 to hold back succeeding fish from riding up on the forward fish until the stop 13 is free to pivot down again by its own weight into a nose-stopping position. The fish are assisted in their sliding down movement in the tubes 3 by vibrating the tubes by an electro magnetic vibrator 22 the current to which is automatically cut off during removal of the row of fish. The fish, initially on a supply table 5 or channels, fall into open channels 4 at the upper ends of the tubes 3. The tubes are oval to suit the fish either belly up or back up. The tubes may have an internal side spring tapering inwards towards the outlet to press smaller fish up into edgewise position.
Patent GB-320778-A (GB)
Title: Improvements in and means for operating diaphragm valves
IPC: F16K31/126
Filed: 1928-10-26
Abstract: 320,778. Saunders, P. K. Oct. 26; 1928. Valves controlled by pilot or relay valves; closure members, diaphragm. -In a fluid-operated diaphragm valve 1, Fig. 3, controlled, for example, by a three-way cock 11 connected to a source of pressure, represented by an elevated water tank 13, the diaphragm 5 coacts with an annular seating 2 within and around which stream-lined ribs or webs 3, 4 are provided to support the diaphragm when closed. The cover 6 is reinforced externally by ribs 7 and is domed internally to support the diaphragm when open. A pressure gauge 15 is shown adapted to indicate the pressure in the pipe controlled by the main valve; this can be done by closing the drain pipe 12 by the cock 14 and turning the cock 11 to connect the pipe 10 with the gauge 15.
Patent GB-1371830-A (GB)
Title: Decoder for binary coded data
IPC: G11B20/14
Filed: 1972-07-03
Abstract: 1371830 Digital transmission; decoding HONEYWELL Inc 3 July 1972 [2 July 1971] 31120/72 Heading H4L Double-frequency coded binary signals (represented by the presence or absence of transitions in either direction in the middle of a bit period itself defined by further transitions in either direction, Fig. 2-V2) are decoded by generating timing pulses V34, V38 a half and a full bit period after each transition and detecting which of them embraces the next transition. NAND gates 4, 8 are respectively enabled by high and low conditions of the input binary signal V2 at 2, in order to pass h.f. pulses from 12 (e.g. at 50 x bit frequency) to counters 14, 16. Starting at 50, Fig. 2, therefore, counter 16 operates and a decoder B at its output generates a pulse at 35 which appears as V34 (Fig. 2) at the output of an OR gate 34, and which lasts from a count of 34 to 66 thereby spanning the middle of the bit period (count of 50) by Œ32%, Similarly the end of the bit period is spanned by a pulse V38 at 39 which appears at the output of an OR gate 38 and which lasts from a count of 68 until either 134 or shortly after the input V2 ends.  Bi-stables 40, 46 are set by the next pulse V10 received at their D inputs from a zero crossover detector 10, to assume the states of the OR gate outputs V34, V38. As V34 is low and V38 high when the next crossover occurs, therefore, bistable 40 output V40Q goes low, and bi-stable 46 output 48 goes high (and 49 low, V49). The change of the input V2 from a low to a high level now starts the other counter 14 which at a count of 5 resets counter 16 at 30, to curtail the V38 pulse 52. The count then proceeds as for counter 16, to give further pulses V38, V34. Bi-stables 40, 46 are thus unaffected, but a further bistable 42 is set to the output V40Q of bi-stable 40 (V42Q). The outputs of the bi-stables 40, 42 are fed to AND gate 44 to give V45. The next transition causes counter 16 to operate again, but this time a "1" transition occurs during the half period sampling pulse V34, and the cross over pulse V10 thus causes bistables 40, 46 to change over, V40Q, V49. Bistable 42 output V42Q is changed by the next crossover pulse V10 which coincides with another half period pulse V34 since the counters reset after every transistion. The net effect of ANDing the outputs V40Q, V42Q is to present the original signal V2, free of jitter, in simple single pulse binary form, V45.
Patent GB-890452-A (GB)
Title: Improvements in reinforced concrete
IPC: E04C5/16
Filed: 1959-09-11
Abstract: 890,452. Reinforced concrete. ELSMORE, F. R. Sept. 9, 1960 [Sept. 11, 1959], No. 31129/59. Class 20(4) Reinforcing rods c are supported in correct alignment in the forms e by diaphragms a formed with open topped slots b to receive the rods at their lower ends. If the rods are arranged in tiers the diaphragms supporting an upper tier are provided with stilt-like formations d, Fig. 2, at their lower ends to clear the rods in lower tiers. Rods can be supported in the upper part of the form by short transverse rods which in turn are supported by hooks f, Fig. 6, from the upper ends of the diaphragms.
Patent GB-407647-A (GB)
Title: Switching arrangement for the current in the killing of whales by electricity
IPC: F42B30/14
Filed: 1933-11-08
Abstract: The circuit of an electric harpoon is closed by the movement of the gun trigger.  The movement either releases a tensioned spring or closes an auxiliary circuit which in turn closes the main circuit.
Patent GB-668897-A (GB)
Title: Improvements relating to moulds for casting metals
IPC: B22D13/10
Filed: 1949-12-05
Abstract: 668,897. Casting-machines; mould and core materials; moulds. BURCHARTZ, J. Dec. 5, 1949 [May 18, 1949], No. 31199/49. Class 83 (i). To reduce the rate of cooling of cast iron in a heated centrifugal pipe-mould and to prolong its life it is coated internally with a refractory or insulating material bonded with a substance which is liquid at 80‹ to 200‹ C. and is burnt fast to the mould by heating to 300‹ to 500‹ C. Sulphite liquor, sugar solution, colophony are suitable binders and graphite, chamotte, kieselguhr and tar derivatives are suitable refractories. A second coating of the same or a similar mixture or of metallic materials may be applied. The mixture may be in granular or liquid form and be applied hot or cold to a hot or cold mould. The inner face of the unlined mould may be left rough or roughly machined or it may be roughened by a hot gas flame or burning magnesium, electron, &c. The coated mould may be brought to the required tempera. ture, e.g. 350‹ to 450‹ C. before each casting operation. The mould 1 rests on four rollers 2 journalled in a slide 3 vertically adjusted on a base 4 by screws 5, supported by inserted packing pieces, not shown, and clamped by screws 8.
Patent GB-337934-A (GB)
Title: Improvements in or relating to carburettor nozzles
IPC: F02M19/03
Filed: 1929-10-15
Abstract: 337,934. Soc. Anon. Solex. Nov. 29, 1928, [Convention date]. Spray carburettors. - Relates to fuel nozzles of the type comprising a submerged nozzle at the lower end of a discharge tube which communicates by staged orifices with a concentric well open to atmosphere, outside the suction zone, through a conceutric hood or baffle. Accord. ing to the invention, access of emulsion-forming air to some of the staged orifices is delayed by capillary passages in order to obtain, at the moment of acceleration the maximum depression in the emulsion channel and a greater output by the calibrated orifice. A removable discharge! tube 9 with submerged orifice 8 is surrounded by and communicates through orifices 12 - - 14 with a well 11 which communicates with the atmosphere through a hood 15 with orifices 16. An enlargement 17 on the tube 9 produces, with the inner wall of well 11, a capillary passage 18 which has the effect of delaying access of emulsion-forming air to the orifices 12 below the enlargement. Tn modifications (1) the capillary orifice is in the form of an annular duct formed between the exterior of the tube 9 and the interior of a ring in the well 11. (2) The capillary passage may be formed by staged rings on the enlargement. (3) The discharge tube may have a bore of different diameter, and (4) additional capillary passages may be provided, e.g. above the orifices 13. Additional Figumes show known arrangements of nozzles and bye-passes.
Patent GB-1301813-A (GB)
IPC: F02C3/14
Filed: 1971-07-05
Abstract: 1301813 Gas turbine plant; combustion equipment; turbocharged I. C. engines FRANCE ARMED FORCES MINISTER OF 5 July 1971 [7 July 1970] 31373/71 Headings F1B F1G and F1L Turbo supercharged I.C. engine has a compressor which supplies air to both the intake of the engine and to a combustion chamber for reheating the exhaust gases before they are supplied to the turbine driving the compressor, the combustion chamber consisting of a burner tube having a fuel injector at its closed end and being surrounded by an enclosure which is sealed to the open end of the tube, there being orifices in the wall of the burner tube at axially spaced positions and the enclosure being supplied with oxygen-rich gas at the end adjacent the fuel injector and with a gas having a low oxygen content at the end remote from the fuel injector. The burner tube 1 is enclosed by a tube 8 which is integral with a distributing duct 11 which is supplied with air through a tube 9 connected to the compressor outlet. This air passes through orifices 7 in the part 2 of the burner tube and also passes through axial openings 16 to cool the walls of the mixing zone 1b. Exhaust gas supplied through a pipe 10 reaches the annular space between the burner tube and the enclosure 8 and mixes with the products of combustion in the burner tube. The outer casing 13 may be provided to distribute the exhaust gas along the length of the burner tube before it passes through the orifices 15 and 7. The open end of the tube may be directly connected to and coaxial with the turbine casing. In an alternative arrangement Fig.4 (not shown) the air supply pipe is coaxial with and encloses the closed end of the burner tube and is itself surrounded by a coaxial exhaust gas delivery tube.
Patent GB-430336-A (GB)
Title: Improvements in or relating to the mounting of electrical switches, coupling sockets, and similar units in or upon wall boxes, bases, and the like
IPC: H02B1/42
Filed: 1933-11-11
Abstract: 430,336. Mounting switches. CRABTREE, J. A., Endwood, Little Aston Park, Sutton Coldfield. Nov. 11, 1933, No. 31437. [Class 38 (v)] [See also Group XXXVI] A switch provided with suspension ears as in Specification 144,352, [Class 38 (v)], is mounted in a wall-box &c. by means of the adjustable supports described in Specification 385,298. As shown, the switch base e has secured to it a pair of ears c resting upon screwed sleeves a and penetrated by the locking screws d. The posts b may be secured in position by screwing or by embedding them during moulding of the box. The ears may be held to the base by the bridge-fixing screws and by locating grooves, and if not of insulating material may be insulated from the live parts by washers around the fixing-screws.
Patent GB-400428-A (GB)
Title: Improvements in or relating to load indicators more especially for cranes
IPC: B66C15/00
Filed: 1932-04-30
Abstract: 400,428. Dynamometers. W Y LIE, H. N., 5, Clement's Inn, Strand, London. April 30, 1932, No. 31442. Divided on 400,932 and addition to 377,209. [Class 106 (ii).] Relates to load indicators for cranes &c. in which a pair of compressor heads movable towards one another are held apart by a strut adapted to bend under load, and consists in employing a strut made up of one or more steel plates the ends of which are clamped to the heads or otherwise fixed so that their freedom to incline is restricted. The frame 1 and arm 2 are hinged together at 3 and have fixed to them the heads 4, 5 and a strut 6 made of two flat spring steel plates clamped to the flat coplanar faces of the heads 4, 5 by flat blocks 7 and screws. A central clip 8 is attached to a rod 9 which moves a signal arm 10 when the strut is deflected on application of load to the arm 2. A deflection bias in the desired direction is given to the strut by the screw 12. In a modification the arm 2 is connected to the frame 1 on each side and near the middle by struts 6 connected together in the centre by a bar and the movement of the end of arm 2 under load is used to actuate the lever 10 directly. A further modification desciibes the lever 10 as actuated through a Bowden wire. In the form shown in Figs. 4 and 5, a pull on a tension member 13 is arranged to deflect the strut. The heads 4, 5 are rectangular bars clamped between the ends of the strut 6. Trunnion extensions 14 on the head 4 pivot in frame plates 1, 1 and the head 5 is pivoted to the side arms 2 which extend beyond the head 4 to connect with the member 13 by a pin. The arms 2 have slots which accommodate the trunnions 14 and allow relative movement between parts 1, 2. The spring plates of the strut are clamped at the centre by a part 8 pivoted to a rod 9 which operates the lever 10. The resistance of the strut is augmented by a spring 16 and a second pre-compressed spring 17 comes into play under the appropriate load. The strut may be formed by three spring plates riveted together at the ends, the centre one projecting beyond the others and engaging seating notches in the parts 1, 2.
Patent GB-1115000-A (GB)
Title: Glass polishing composition
IPC: B24B1/00
Filed: 1966-07-13
Abstract: 1,115,000. Polishing. G. O. SHIPTON (PITTSBURGH PLATE GLASS CO.). 13 July, 1966, No. 31460/66. Heading B3D. A glass polishing composition comprises an aqueous solution containing at least 0À05% by weight dissolved zirconium and having disposed therein in solid form from 0À25 to 10% by weight of ZrO 2 , the composition having a pH of up to 4À5. The dissolved zirconium is supplied by zirconyl nitrate, zirconyl hydroxychloride or zirconium tetrachloride. Lower percentages of solid ZrO 2  can be used the greater the soluble zirconium content. Lower pH ranges can be used the larger the polishing pad. Higher pH ranges can be used the greater the soluble zirconium content. Where glass plates are adhered to polishing tables by plaster of Paris which is therefore exposed along the edges of the plates, between adjacent plates and at damaged portions of the plates, or where rouge is present as a residue, barium chloride is added to the composition, e.g. 1% or less by weight.