baber/WOPTO huggingface dataset:
Patent GB-100905-A (GB)
Title: Improvements in Demountable Rims for Wheels.
Inventor: WALTER IRA DAVID
IPC: B60B23/04
Filed: 1916-03-30
Abstract: 100,905. Walter, I. D., Brinkerhoff, J., Cole, B. F., Gant, J. G., Flournoy, T., Gant, J. W., and Latimer, S. A. March 30, 1916. Detachable-rim attachments to wheels.-The detachable and fixed rim members 5, 2 respectively are fitted with complementary wedges 6, 3 having tapered edges 8, 4 which, on relative circumferential movement of the rims, effect the tightening of the transverse wedge surfaces. The rim 5 is locked in its operative position by the engagement of spring detents 9 and racks 10 fitted to the rim members.
Patent GB-266722-A (GB)
Title: Improvements in or relating to high frequency thermionic transmitting devices
IPC: H03C1/22
Filed: 1927-02-22
Abstract: 266,722. Telefunken Ges. f³r Drahtlose Telegraphie. Feb. 23, 1926, [Convention date]. Thermionic modulating systems.-In a highfrequency valve transmitter modulated by a modulation valve M in the grid-current path of the main valve H, a correction valve V<1> or V<2> is connected between the grid and filament of the main valve to prevent suspension of the grid current due to production of secondary electrons, or between the plate and grid to decrease the current through the modulation valve. The valve V<1> has its plate connected to the grid of the main valve, its filament connected to the filament of the main valve, and its grid and that of the modulation valve connected together through a transformer T by which the speech 'voltages are applied. The valve V<2> has its filament connected to the grid and its plate to the plate of the main valve and bias voltage. which may be constant or variable in accordance with the speech voltage, is applied to the grid.
Patent GB-233472-A (GB)
Title: Improvements in or relating to machines for charging cartridge belts
IPC: F42B39/10
Filed: 1924-02-28
Abstract: 233,472. B.S.A. Guns, Ltd., and Norman, G. Feb. 28, 1924. Cartridge belts and hoppers.-A machine for charging metal-link cartridge belts of the kind in which the cartridges themselves form the hinge pins between the metal links constituting the belt, has a base-plate 1 adapted to be secured to a bench and comprises a gravity-feed hopper 7 divided by a vertical partition into two compartments, one 4 containing the cartridges 6 which are fed in at the top, and the other 3 containing the metal links 5 which are fed through an opening 10 of the same shape as the links to ensure feeding them in the proper position. The portion 13 of the uppermost link in that portion of the belt which is already formed is supported between two springs plates 11 arranged one at either side of the bottom of the hopper 3 and in alignment between the two clip portions on the lower side of the link at the bottom of the hopper 4. A slide 14 is reciprocated in guides in the baseplate by means of a connecting rod 16 and crank 20, to push the lowermost cartridge in the hopper through the aligned clip portions of these two links. Two levers 21 pivoted at 30 in the baseplate are bent inwards towards one another at one end and project through the plates 11, the projecting parts being closer together at their lower ends than at the top. so that as the ends of these levers are reciprocated when the crank 20 is turned by the cam plates 24 at the proper time intervals, the portion 13 of the clip engaged between the springs 11 will be pressed down-. wards to feed the belt through the machine.
Patent GB-728987-A (GB)
Title: Improvements in domestic water heating systems and boilers therefor
IPC: F24B1/183
Filed: 1953-02-24
Abstract: 728,987. Hot-water boilers. LEIGHTON, J. W. May 15, 1953 [Feb. 24, 1953], No. 5105/53. Class 64 (1). Relates to a fireback boiler comprising an upper part which has vertical back and side walls and a front wall and provides a boiler space around a vertical flue 6 opening through upper and lower walls 2, 7, and a pair of hollow legs 5 which open at their upper ends into that boiler space and have back, side and front walls which form downward extensions of the corresponding walls. of the upper part, the lower wall 7 extending between the two legs 5. According to the invention, the legs are of such a length as to extend below the hearth level 13 of an open fireplace when the lower wall 7 is positioned above and behind the firegrate 14.
Patent GB-933870-A (GB)
Title: A method and apparatus for the measurement and regulation of the quantity of a loose material continuously transported per unit of time
IPC: G01F3/28
Filed: 1960-02-12
Abstract: 933,870. Bearings. AGFA A.G. Feb. 12, 1960 [Feb. 19, 1959], No. 5107/60. Class 12 (1). [Also in Groups XXXV and XL (b)] In a compressed air bearing for a rotary bucket wheel 30, air enters through a channel 15 and passes via radial ducts 16 to the interconnected annular passages 17, 19. From these passages it flows through radial or annular ducts 20, 21 to pass between the hub 22 and the bearing roller 10 and escape through ducts 27, 28 and between hub 22 and the shafts 13, 14.
Patent GB-276385-A (GB)
Title: Improvements in rods for supporting curtains and like articles
IPC: A47H1/08
Filed: 1926-02-24
Abstract: 276,385. Stafford, C. Feb. 24, 1926. Curtains, suspending.-A curtain rail consists of two or more telescoping parts a of C-section. The ends of the rail, which may be bent at right angles, are supported by a hook f, pressed out from a sheet metal blank e, engaging an aperture d in the upper channel of the rail. The runners each consist of a wire hook carrying a disc roller which runs in the lower channel. Specification 218,096 is referred to.
Patent GB-941241-A (GB)
Title: Improvements relating to mechanical seals for rotating shafts
Inventor: PORGES FREDERICK BENJAMIN
IPC: F16J15/00
Filed: 1962-02-12
Abstract: 941,241. Stuffing-box substitutes. FLEXIBOX Ltd. Oct. 5, 1962 [Feb. 12, 1962], No. 5229/62. Heading F2B. In a mechanical seal for a rotary shaft d comprising a main seal and a stand-by seal for use if the main seal is damaged, the stand-by seal comprises a stationary ring e which is normally held out of engagement with its cooperating rotary ring f by pressure of a spring v and is moved into engagement with the ring f by hydraulic pressure. The main seal comprises a stationary ring a and a rotary ring b secured to a sleeve c which rotates with the pump shaft d and to which the ring f is also secured. Liquid from the pump discharge is normally circulated around the main seal for cooling via pipes g and h, flow controller i, space j and return k to the pump suction. If the main seal fails liquid leaking past it flows into the space n around the stand-by seal and thence by pipe o into a tank p where it causes a switch p<1> to close a circuit and actuate a solenoid operated valve q to allow pump discharge liquid to pass to the space r behind a piston s which is moved by the hydraulic pressure against the spring v and via springs t moves a member u carrying the ring e to press the latter into sealing contact with the ring f and render the stand-by seal operative. If the stand-by seal is to be used for an extended period the valve q may be disconnected and a bypass valve q<1> opened or, alternatively, the piston s may be held in the operative position by screwing-in a sleeve nut y. The hydraulic pressure on the piston s may be obtained from an auxiliary pump driven by an electric motor operated by an increase in the liquid level in the tank p.
Patent GB-279019-A (GB)
Title: Improvements in induction type alternating current relays
IPC: H01H53/015
Filed: 1927-02-24
Abstract: 279,019. Allmõnna Svenska Elektriska Aktiebolaget. Oct.. 14, 1926, [Convention date]. Induction relays for A.C. circuits have a conductor in the shape of a closed ring surrounding a branch of an alternating flux and intersecting other branches of the flux in moving, the two sides of the ring being intersected by flux branches in opposite directions so that the ring is moved in an axial direction. As shown in Fig. 2 the ring d surrounds the centre limb of a core a provided with an energizing winding k, the winding branch 2 of the flux (Fig. 2) passing through the ring d and being transferred to the side limbs through a magnetic bridging member c of relatively small cross-section, and the dynamically active branches 3 passing through the air gaps b between the centre and side limbs of the core and so tending to move the ring axially. If, as shown in Fig. 3, the ring d is secured at one end of a contact arm e pivoted at f its movement may be arranged to bring contacts l, m into engagement against the action of an adjustable spring g.
Patent GB-935410-A (GB)
Title: N-allyl-piperidines, processes for their manufacture and pharmaceutical compositionscontaining them
IPC: C08G69/26
Filed: 1962-02-12
Abstract: The invention comprises compounds of the general formula: <FORM:0935410/IV(a)/1> wherein R1 is a hydrogen atom or a hydroxyl group; their acid addition salts; a process for their manufacture by (a) reacting a piperidine of the general formula: <FORM:0935410/IV(a)/2> with an allyl halide; (b) reacting a 1,5-dihalopentane of the formula <FORM:0935410/IV(a)/3> with allylamine or (c) esterifying the free carboxylic acid with methanol, the free acid optionally being prepared by hydrolysis of a nitrile <FORM:0935410/IV(a)/4> (R11 being a hydrogen atom or an alkoxy group) in turn prepared by reacting a nitrile <FORM:0935410/IV(a)/5> with an N,N-di(b -haloethyl)-N-allylamine; and pharmaceutical compositions containing them (see Group VI).ALSO:Pharmaceutical compositions comprise piperidines of the general formula <FORM:0935410/VI/1> (wherein R1 is a hydrogen atom or a hydroxyl group) or their acid addition salts and a pharmaceutical carrier or excipient. The compounds are central analgesics and also suppress the undesirable effect of morphinic analgesics.  Compositions may therefore contain such analgesics as morphine, methadone and meperidine.  The compositions may be formulated in dosage units for oral or rectal administration, but are preferably formulated as solutions for parenteral administration, examples of which are given.
Patent GB-326316-A (GB)
Title: Improvements in dash-pots
IPC: G01G23/08
Filed: 1929-02-18
Abstract: 326,316. Avery, Ltd., W. & T., and Timson, W. Feb. 18, 1929. Dashpots.-A dashpot applicable particularly to weighing-machines is provided with a piston having apertures 7<a> and upper and lower annular closure discs 5, 8 which are forced away from the piston by light springs 6, 9. Each disc is forced against an adjustable abutment consisting in one case of a nut 10 and in the other of a tube 4 which may be screwed up or down the piston-rod. Specification 24392/10 is referred to.
Patent GB-293684-A (GB)
Title: Upright inner tube mold
IPC: B29D23/24
Filed: 1928-02-20
Abstract: 293,684. Gillette Rubber Co., (Assignees. of Hutchens, R. W., and Krause, A. R.). July 9, 1927, [Convention date]. Vulcanizing tyre tubes.-The mould comprises an outer member 12 supported by a pedestal 19, and carrying by means of a spider 20 a fluid cylinder 21, and an inner member 14 carried by guide rods 24 working in bearings in the spider 20 and in a spider 22 on the cylinder head. The member 14 is moved by a piston 30 connected to it by a spider 28 and is locked by means of a slotted ring 34 rotatably carried by the spider 20 and provided with wedge-like surfaces which engage grooves in locking pins 33 secured to the spider 28.
Patent GB-1368542-A (GB)
Title: Electric discharge tube including a mesh grid
IPC: H01J19/38
Filed: 1973-02-02
Abstract: 1368542 Thermionic valves PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 2 Feb 1973 [5 Feb 1972] 5328/73 Heading H1D A discharge tube includes a cylindrical grid comprising oppositely wound groups of wire helices 1, 2 welded together at each cross point 3, some wires of each group being thicker than the remainder to provide mechanical stability at temperatures up to 2000‹ C. The wires are of Mo and a known method to reduce thermionic emission is described comprising applying coatings of ZrC and Pt or Au; the ZrC is provided by sintering in an inert atmosphere at 2000‹ C.
Patent GB-746628-A (GB)
Title: Improvements in pumps or motors of the meshing screw type
IPC: F01C1/16
Filed: 1954-02-25
Abstract: 746,628. Rotary pumps. DRESSER INDUSTRIES, Inc. Feb. 25, 1954 [April 6, 1953], No. 5563/54. Class 110(2) A rotary screw type pump or motor has two interconnecting helically threaded rotors 32, 33, each thread being convex on one side 40 and concave on the other side 39, and two specially shaped ports 51, 52 in the rotor casing, the size of the discharge port 52 directly determining the built in compression ratio of the pump. The rotors 32, 33 are mounted on shafts 30, 31 against shoulders 35, 36, the shafts being mounted in combined radial and end thrust bearings 29, the shaft 30 driving shaft 31 through gear wheels 34. The thread 37 of the driving rotor 32 is thinner than that of the driven rotor and the rotors are such that the concave side of the thread of one contacts the concave side of the thread of the other. The inlet and discharge ports, placed on opposite sides of the casing, are specially shaped with respect to the screw threads as shown in Figs. 1, 2 and 5 (not shown) and by decreasing the size of the discharge port 52 (see Figs. 6a, 6b, 6c, not shown) the built in compression ratio can be varied from 1 : 1 to 2 : 1. A cavity or passage is formed in the discharge plate 24 to allow fluid trapped between the threads at discharge to escape to the discharge port 52. Specifications 112,104 [Class 110(ii) ] and 670,395 are referred to.
Patent GB-512231-A (GB)
Title: Locking device for nuts, bolts and screws
IPC: F16B39/24
Filed: 1939-02-20
Abstract: 512,231. Locking-washers. SCHNORR, A. Feb. 20, 1939, No. 5586. Convention date, March 22, 1938. [Class 89 (i)] A lock washer a, Fig. 1, formed with a central hole b with apertures d and with radial parts c, which are bent out of plane as shown in Fig. 2. The gripping edges may be rectangular, or altered by stamping to a more acute angle. For locking a row of nuts the washer may be formed as a strip.
Patent GB-374006-A (GB)
Title: Improvements in thermionic valve circuits
IPC: H03J3/06
Filed: 1931-02-23
Abstract: 374,006. Valve amplifying circuits. PYE RADIO, Ltd., Radio Works, ROOT, E. V., 176, Milton Road, both in Cambridge, and MAXEY, H. J. M., Roseville, Southfield Avenue, Paignton, Devon. Feb. 23, 1931, No. 5613. [Class 40 (v).] In order to obtain uniform amplification over each of several bands of frequencies, the resonance frequency of a flat-tuned aerial oircuit is adjusted for each band, the coupling between the aerial and tuned input circuit comprising an autotransformer of which the primary winding is formed on each frequency band by a tapped portion of the inductance of the tuned circuit. The Figure shows an arrangement for two wavebands in which aerial inductances LC1, LC2 are switched alternatively in circuit with tappings on the tuning circuit inductances L1, L2 by the switch S. R is an input volume control. The resistance of LC1, LC2 may be made high by winding with fine wire on small slotted bobbins. The Provisional Specification states that resistances may be substituted for the aerial inductances, and also that interference on long waves is eliminated by the present arrangement.
Patent GB-1462648-A (GB)
Title: Container
IPC: B65D43/16
Filed: 1974-02-07
Abstract: 1462648 Container closures STANDARD OIL CO 7 Feb 1974 [21 Feb 1973] 05631/74 Headings B8P and B8T A container, which may be of foamed plastics, has outwardly sloping side walls to both body and cover portions with a formation on the body side walls that engages a lip on the cover. The engaging formations are as shown in Fig. 7 and portion 19 makes an angle of from 10 to 45 degrees with the base 12. If the cover and body are hinged together the engaging formations may be provided only on the side opposite to the hinge, if the cover is separate all four sides of the body and lid will carry the engagement means. Similarly if the container is circular the formations extend round the whole periphery.
Patent GB-1488783-A (GB)
Title: Refinement of ferrous alloys
IPC: C21C7/068
Filed: 1976-02-12
Abstract: 1488783 Refining ferrous alloys ELECTROHEAT (PROPRIETARY) Ltd 12 Feb 1976 [05655/76] Heading C7D In a process for the removal of carbon from iron, alloy steels and ferro-alloys, especially those containing chromium and vanadium, to levels of the order of 0À05% or less, the molten super-heated metal is placed in an L.D. oxygen converter and the metal bath top blown with oxygen in the normal manner to partially remove the C from the melt using a twin-channelled converter lance, i.e. down to about 0À4%C with a Si content of about 0À1%. The melt is slagged off if necessary and hydrogen passed through one channel of the lance so that it ignites in the oxygen stream passing through the other channel to form an oxy-hydrogen flame jet, which impinges on the metal bath to the same depth as the initial oxygen jet. Up to 30% excess oxygen may be in the water vapour jet, which also may include nitrogen if required, and the melt is blown until the desired carbon content is reached. The initial oxygen blow lasts 9-10 minutes, and the water vapour blow lasts less than 15 minutes. Where the converter refractories are basic, the final blown metal may be vacuum degassed or purged with argon prior to casting, but this step is not necessary where acid refractories are used.
Patent GB-1032513-A (GB)
Title: A method for continuously producing town or grid gas
IPC: C10K3/02
Filed: 1963-02-12
Abstract: A method of continuously producing town or grid gas comprises cracking liquid or gaseous hydrocarbons or hydrocarbon-rich refinery exhaust gases with steam in an indirectly heated reactor, e.g. a tube reactor, at 700 DEG  to 800 DEG  C, adding liquid or gaseous hydrocarbons or hydrocarbon-rich refinery exhaust gases to the cracked gas, and subjecting the mixture to a catalytic hydrogenating cracking reaction at 500 DEG  to 700 DEG  C.  The temperature of the second reaction, and the quantities of the reactants in the second reaction, are controlled so that (a) the H2 content of the gas from the second reaction is the same as or less than that of the gas from the first stage, and (b) the volumetric ratio H2 to CO in the second gas is the same as or greater than that in the first gas, i.e. the CH4 and CO2 content of the gas is increased by the second reaction. The first cracking reaction, which may include air, may be carried out at normal or elevated pressure, e.g. 10 to 25 atmospheres, using a nickel-containing catalyst.  The second cracking reaction, which may include steam, is preferably carried out at 550 DEG  to 650 DEG C., and a cobalt-molybdenum or nickel-containing catalyst is used. Hydrocarbons supplied to both reactions include propane, butane, and light and heavy petrol. After leaving the reactor, the cracked gas may pass through a heat exchanger, e.g. to raise steam or to preheat crude stock, after which the further hydrocarbon, with or without steam, is added.  After leaving the second reactor, the gas passes through a second heat exchanger and a carbon dioxide scrubber, and hydrocarbons, refinery exhaust gas and air may be mixed with the gas to adjust its calorific value and oxygen content.  A specific example is described.
Patent GB-834678-A (GB)
Title: Improvements relating to landing or alighting gear for aircraft
Inventor: HENNIG NORMAN WESTON
IPC: B64C25/10
Filed: 1957-02-20
Abstract: 834,678. Aircraft undercarriages. SHORT BROS. & HARLAND Ltd. Feb. 18, 1958 [Feb. 20, 1957], No. 5742/57. Class 4. An aircraft incorporating vertical lift engines housed within the body has retractable landing or alighting gear mounted within the engine bay and completely enclosed therein when retracted, the aperture through which the lift engine jets are directed and the gear is extended and retracted having a closure member operatively connected with the gear so that in a semiretracted position to which the gear is moved after take-off, a part of or associated with the closure member protects the gear from the engine efflux. In the arrangement described, four landing legs are disposed in a forward and and aft pair, one pair being shown. Each leg comprises a bracket 15 pivoted on a longitudinal axis 16 to the fuselage and retractable by a jack 20 connected to a break strut 21, 22. An oleo-leg 13 carries a castoring wheel 11 on a parallelogram linkage 12, and is pivoted on a pivot 14 about an axis c-d to the bracket 15. A door 17 is secured to the bracket 15, and a jack 19 extends between a pivot 211 on the door and a pivot 191 on the oleo-leg. The legs are extended as in full lines during vertical take-off. After take-off, the jacks 19 are extended, swinging each oleo-leg up about pivot 14 to lie alongside door 17 as in broken lines, Fig. 2. A shield 18 is provided to shield the undercarriage from the direct lift jet efflux. During cruising flight, when the vertical lift engines are inoperative, jacks 20 are retracted, retracting the undercarriage, and fairing off the engine and undercarriage bay by doors 17, as shown by the broken lines a, b.
Patent GB-563062-A (GB)
Title: Improvements in or relating to the manufacture of name-plates, dials, cards, tabs, tickets, or the like
IPC: B31D1/02
Filed: 1943-04-10
Abstract: 563,062. Machines for making display cards and the like. WALPOLE, G. S. April 10, 1943, No. 5778. [Class 3 (ii)] Apparatus for cutter-crushing or transfer applying in the production of name plates, dials, cards, tabs, tickets, &c. comprises an upper platen 1 carrying dies 8, 9 and a lower platen .2 along which the backing 10 forming the cards &c. is traversed. Means are provided on the upper platen whereby the strip 11 of material which is to be applied to the backing 10 is, after passing the die 8, led away from the backing, e.g. by being led up through a slot 7 in the top platen 1 and along a channel 12 in its upper surface, or by being taken along a channel 24 in its bottom surface. A heater box 3 may be located between the press face' 5 and the top platen 1. The die 9 is a knife cutting three sides of the card &c. wholly or partially through the backing 10 at each down stroke of the press and means are provided for advancing the backing 10 automatically after each stroke so that the die 9 will cut three sides of the next card, one of which coincides with the fourth side of the previous card, and the cuttercrushing or transfer die 8 will be accurately positioned so that the part of the backing treated by it will be properly located subsequently relative to the excising die 9. These means include a notching cutter which makes equally spaced slots in one edge of the backing 10 and a spring-biassed pawl 13 having a tilting and also a lateral swing which goes to meet the oncoming notch and then pulls up the backing in exact location. A projection 22 on the pawl 13 is struck by the descending platen 1 to release the backing 10 at the instant of its contact with the die 9 and to allow it to move forward another step when the die 9 rises. The platen stroke and the -forward feeds of backing and of strip 11 may be hand, foot, or power operated. Dies for piercing the cards with holes may also be fitted.