baber/WOPTO huggingface dataset:
Patent GB-729875-A (GB)
Title: Furnace for burning solid fuels such as bituminous coal and derivatives thereof
Inventor: WORSHAM JAMES ALVIN
IPC: F24B7/02
Filed: 1953-07-31
Abstract: 729,875. Solid-fuel furnaces. SMITH, W. P. July 31, 1953, No. 21259/53. Class 51 (1). A furnace includes a fire pot, a horizontal grate having a front coking section 20 and a rear burning section 21, the section 21 being pivoted at 31 so as to dump ash and the section 20 being pivoted at 27 so as to transfer fuel to the section 21, an ash-pit 13 with a damper-controlled air inlet, a baffle 40 pivoted at 39, a fuel supply shoot 24 with a damper-controlled air inlet, and an inspection door 38. Specification 671,597 is referred to.
Patent GB-1172649-A (GB)
Title: Convertible Article of Furniture.
Inventor: MULLER EMANUEL
IPC: A47C4/52
Filed: 1968-05-06
Abstract: 1,172,649. Combined chair and suitcase. E. MULLER. 6 May, 1968 [10 May, 1967], No. 21306/68. Headings A4H and A4J. A suitcase can be converted into a chair or a chaise longue. The lid 2 of the case can be rotated around the edge 5 by means of a hinge (6) and can be retained in a position to serve as a back rest by struts (7), 8. Figs. 3, 4 can then be pivoted out of the suitcase. Two extension panels 10, 11 are accommodated in a recess in the base 1 of the suitcase, the first panel 10 being pivoted to the base by a bar 12 and the second panel 11 being pivoted to the first panel 10 by a bar 19. Figs. 15, 21 are pivoted to the panels and may be locked in by hinged struts 17, 23. When extended the panels 10, 11 are flush with the base 1. The lid 2 can be supported in a horizontal position level with the base.
Patent GB-448068-A (GB)
Title: A mat for the sound-insulation of walls and ceilings
IPC: E04B1/84
Filed: 1935-07-26
Abstract: 448,068. Nonconducting coverings for sound. STOSSEL, H., 91, Ringstrasse, Lich terfelde-West, Berlin. July 26, 1935, No 21317. [A Specification was laid open to inspection under Sect. 91 of the Acts, Jan 29, 1936.] [Class 64 (ii)] [See also Group VIII] A sound insulating mat comprises paper or pasteboard layers a<1> c<1> with layers of granular cork b<1> interposed, the whole being held together by quilting e<1>. An insertion, such as a pasteboard sheet o may be arranged within the filling, preferably provided on each side with adhesive, such as bitumen, to act as a further support for the granules. The outer sheets may be covered with paper or pasteboard sheets d<1>, impregnated against moisture or fire, or the whole mat may be so impregnated.
Patent GB-484194-A (GB)
Title: Improvements in or relating to apparatus for indicating the presence of inflammable vapours or gases
IPC: G01N7/12
Filed: 1936-08-01
Abstract: In an inflammable-gas detector of the kind in which the combustion of gas around a filament 21 in a porous vessel 5, 6 creates a partial vacuum causing the collapse of a double diaphragm 36 in communication with the porous pot, thereby breaking at 41, 42 the circuit of the lamp 12, a shunt resistance 47, Fig. 10, is provided so that the lamp is not completely extinguished but glows with less than normal illumination.  A constricted passage 55 between the porous pot and the diaphragm delays the equalization of pressure, permitting the device to be tested by switching off the current and then switching on again. The lamp circuit may contain a bi-metallic strip or other thermal switch 40 situated within the porous pot, whereby the lamp is extinguished if the filament 21 fails; the light can however be restored by the manual opera <PICT:0484194/III/1> <PICT:0484194/III/2> tion of a plunger 51, Fig. 10, which short circuits this device. The apparatus is constructed as shown in the usual form of a miner's lamp having a lower casing 1 containing the battery.  The atmosphere has access to the porous pot by ports 14 surrounding the gauze screen 15.
Patent GB-815766-A (GB)
Title: Two-way radio terminal apparatus
IPC: H04B1/44
Filed: 1957-07-05
Abstract: 815,766. Automatic frequency control systems. STANDARD TELEPHONES & CABLES Ltd. July 5, 1957 [July 10, 1956], No. 21380/57. Class 38 (4). [Also in Group XL (c)] In a combined radio transmitting and receiving apparatus the transmitter oscillator is so arranged that its fundamental frequency f o  equals the receiver intermediate frequency f 4  divided by an integer m whereby the frequency f o  or one of its harmonics falls within the intermediate frequency range and the receiver discriminator stage is utilized to provide automatic frequency control of the transmitter oscillator during transmission. The received signal of carrier frequency f 2  is applied via an amplifier E to a mixer M1 co-operating with a local oscillator K, preferably crystal-controlled, producing a frequency f 3 . The output f 4  of the mixer is applied via an I.F. amplifier ZF, frequency discriminator U, and audio-frequency amplifier V1 to a telephone receiver H. Operation of a send-receive switch T changes over the relay-operated contact t in the aerial circuit and starts the transmitting oscillator O generating waves of frequency f o  which are modulated via a microphone M and amplifier V2. A frequency multiplier D multiplies the oscillator frequency by an integer n and at M2 the frequency nf o  is combined with the frequency f 3  to produce the frequency f 1  for transmission via the amplifier S. A small portion of the output of the oscillator O at the harmonic frequency mf o  is applied via a capacitor C to the I.F. amplifier ZF and the discriminator U supplies a control voltage over the conductor N to adjust the mean frequency of the oscillator O in known manner. If the frequency difference f 2  - f 1 =df, then and these relations are utilized in numerical examples to calculate the various frequencies required.
Patent GB-810953-A (GB)
Title: Improvements in or relating to electronic counting and computing arrangements
IPC: H03K29/00
Filed: 1955-07-25
Abstract: 810,953. Automatic regulation. ERICSSON TELEPHONES Ltd., and ACTON, J. R. July 25, 1955, No. 21404/55. Class 38 (4). [Also in Groups XIX and XL (a)] A multi-gap cold cathode tube of the kind disclosed in Specification 712,171, [Group XL (a)], and used for counting and storing electrical impulses as disclosed in Specification 805,231, [Group XL (c)], has its anode voltage stabilized by supplying it from a cathode follower. The anode of the multi-gap tube DTD is connected as the cathode load of a triode DTE in series with the H.T. supply PA, Z. The grid voltage of the triode DTE is held constant by connecting it through a normally conducting rectifier MR1 to a reference voltage tapped off a potential divider R13, R14, R15 across reference tubes DTA, DTB, DTC, which are energized by the input voltage. Thus the voltage drop at the cathode of DTE due to an increase in current through tube DTD is reduced in proportion to the Á of triode DTE. In order to facilitate the transfer of the discharge from one cathode to another of the tube DTD the anode voltage can be temporarily reduced. The switching potentials, represented as batteries NC, ND, are connected to the control grid of triode DTE by networks C2, R18, C3, R19 so that on switching, a negative pulse is applied to the grid of DTE which causes diode MR2 to conduct and drop the grid potential to that of a lower reference tapped off potentiometer R14, so reducing the output voltage applied to the anode of the tube DTD.
Patent GB-233221-A (GB)
Title: Improvements in centrifugal extractors
IPC: B04B9/08
Filed: 1924-09-10
Abstract: 233,221. British-American Laundry Machinery Co., Ltd., (American Launadry Machinery Co.). Sept. 10, 1924. Driving.-A centrifugal extractor is provided with means for connecting and disconnecting the source of power to the basket; the disconnection effects a braking action on the basket and the brakes may also be independently applied by the operator. The basket spindle 3 has a pulley 4 for the driving- belt 5 which passes round the idlers 6 and the drive pulley 7 fixed upon the shaft 8. Fast and loose pulleys 11, 10 are also carried by the shaft 8 and the driving-belt 12 can be shifted from one to the other by means of the rod 13 operated by the handle 15 on the spindle 16. An arm on the spindle is connected by a link 19 to one end of a bell-crank lever 20 the other end of which is connected to the rod 22 loosely secured to an arm 24 on the spindle 25. Another arm fixed to the spindle 25 is pivoted between links 28 which with the links 29 form a toggle. The links 29 are connected to the junction of toggle levers 33. 34, the latter 34 of which is adjustable in length by means of a screw thread and is connected at its lower end to the brake lever 38. When the machine is running the parts are in the position shown in Fig. 1, and in order to stop running the handle 15 is operated to shift the belt 12 from the fast pulley 11 to the loose pulley 10. This motion operates the mechanism to straighten the toggle 33, 34, to depress the brake lever 38 and to apply the brake, the parts then being in the position shown in Fig. 3. By depressing the release treadle 44, the operator can break the toggle, independently of the belt-shifting means, to allow manual rotation of the basket for loading. The machine can then be started by the movement of the belt to the fast pulley by operation of the handle 15. It is also possible with the parts occupying the position shown in broken lines in Fig. 3 to straighten the double toggle by depressing the lever 38 and so apply the brake and shift the belt to the loose pulley.
Patent GB-1042064-A (GB)
Title: Process and apparatus for treatment of filamentary material and product thereof
IPC: A24D3/02
Filed: 1963-05-29
Abstract: 1,042,064. Opening crimped tow. CELANESE CORPORATION OF AMERICA. May 29, 1963 [March 8, 1963; March 15, 1963], No. 21439/63. Heading D1F. [Also in Division A2] A cigarette filter plug comprising a bundle of substantially uniformly crimped continuous filaments extending through the length of the plug with the crimps in the individual filaments wholly or mainly out of registration with those in adjacent filaments, the bundle being contained in a tube of paper, is characterized in that the bundle is free from inter-filamentary coalescence and increases in diameter by at least 20% when released from the restraint imposed by the tube of paper. Crimped tow 12 is drawn upwardly from a bale 11 over a bar 13, passes horizontally through an airspreader 14, over bars 15, 16 and 17 and downwardly, at an angle preferably less than 25 degrees to the vertical, to the nip of rollers 18, 19. Roller 19 is a smooth driven roller and roller 18 is a steel idler roller, spring-urged into contact with roller 18 and having helical grooves. The tow then passes between a further pair of similar rollers 20, 21 which are driven at a speed faster than the rollers 18, 19. The helical grooves on the rollers 18 and 20 ensure that the filaments are only gripped between the rollers in regions alternating with other regions where the filaments are not so gripped, the particular filaments gripped changing repeatedly during the passage of the tow between the rollers so that different groups of filaments are gripped and released. The opened tow then passes to the garniture 22 of a machine 24, from which it emerges as a continuous rod 25 which is cut into lengths 27 by a knife 26. Preferably the filaments are of cellulose acetate but may be made from other cellulose esters, e.g. cellulose propionate, cellulose acetate propionate, highly esterified cellulose containing less than 0.29 free hydroxyl groups per anhydro-glucose unit such as cellulose triacetate, regenerated cellulose, linear super polyamides such as nylon-6 and nylon-66, linear polyesters and polymers and copolymers of vinylidene compounds such as ethylene, propylene, vinylidene cyanide and acrylonitrile. Quantitative examples are given.
Patent GB-276023-A (GB)
Title: Manufacture of preparations of leuco-compounds of vatdyestuffs
IPC: C09B67/28
Filed: 1927-08-15
Abstract: 276,023. Geigy Akt.-Ges., J. R. Aug. 16, 1926, [Convention date]. Dye preparations.-Stable preparations of leuco compounds of vat dyes are made by intimately mixing the dye with a dihydric alcohol or with an aldehyde, converting into the leuco compound by means of hydrosulphite in presence of alkali, and drying the product. The products are readily soluble in water and may be used directly for dyeing or printing. In an example, Tinon scarlet G extra is pasted with ethylene glycol and caustic soda solution and reduced with sodium hydrosulphite; sodium sulphate is then added and the mixture evaporated to dryness. In the manufacture of a preparation suitable for printing, sodium sulphoricinoleate is substituted for sodium sulphate. Other vat dyes may replace the dye used in the example, and propylene glycol, ethylene thiodiglycol or formaldehyde may replace the ethylene glycol. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the use of other reducing agents in place of hydrosulphite, sodium sulphide being specified. Indigo, thioindigo, and anthraquinone dyes are also mentioned as vat dyes suitable for treatment by the process of the invention. This subject-matter does not appear in the Specification as accepted.
Patent GB-724176-A (GB)
Title: Improvements in and relating to combustion turbine plants
IPC: F02C7/08
Filed: 1951-11-30
Abstract: 724,176. Gas turbine plant; centrifugal pumps and compressors. PARSONS & CO., Ltd., C. A., and HRYNISZAK, W. Nov. 30, 1951 [Aug. 30, 1950], No. 21449/50. Classes 110 (1) and 110 (3). [Also in Groups XIII and XXVIII] In a gas turbine plant comprising a power balanced radialinward flow turbine driving a radial-outward flow compressor 3 and a useful power centripetal turbine 29 driving a centrifugal compressor 2, the turbines and compressors are of the specific type shown, the combustion chamber of the plant are disposed in a plane at right angles to the axis of the plant and an air preheater is built around the exhaust duct of the centripetal turbine. The compressors have a louvred inlet 4 provided with a filter 5 and discharge into a scroll 7 having outlets 9, 8 which terminate in an annular diffuser 10. The air preheater comprises two nests of tubes having a fluid agent, such as sodium, circulated therethrough by a centri. fugal pump 19. The turbine 29 drives the pump 19 and also a rotary filter, for cleaning the exhaust gas fed to the air pre-heater, through a quill shaft 27 and a slipping clutch 26, the power shaft being driven through an epicyclic gear train as shown. Specifications 719,775 and 724,177 are referred to.
Patent GB-384947-A (GB)
Title: Improvements in and relating to picture assembling devices for television receivers
IPC: H04N3/08
Filed: 1932-07-30
Abstract: 384,947. Television receivers. SœDDEUTSCHE TELEFON-APPARATE-, KABELUND DRAHTWERKE AKT.- GES. TEKADE, (formerly SœDDEUTSCHE TELEFON-APPARATE-, KABEL - UND DRAHTWERKE AKT.-GES.), 33, Nornenstrasse, Nuremberg, Germany. July 30, 1932, No. 21565. Convention date, Aug. 5, 1931. Drawings to Specification. [Class 40 (iii).] In a television receiver employing a mirror helix, i.e. in which the individual mirrors aredistributed along a rotary axis with an equal angular displacement between each mirror, the length b of each mirror is given by the formula b = 2# a/z where z is the number of z lines traced on the image and a is the distance between the observer and the mirror helix when that distance is equal to the distance of the light source from the mirror helix. In general if l1, l2 are the distances respectively between the helix and the observer and light source, it is found that 1:l1+1/l2=2/a. Preferably the ratio of height to the length of each mirroris equal to the ratio of the number of lines to the number of elemental areas.
Patent GB-1041687-A (GB)
Title: Cigarette catcher or collecting apparatus
IPC: A24C5/32
Filed: 1965-05-24
Abstract: 1,041,687. Cigarette packaging apparatus. AMERICAN MACHINE & FOUNDRY CO. May 24, 1965 [June 1, 1964], No. 21851/65. Heading B8C. A device for filling trays 2 of the kind used for transferring cigarettes in bulk to a packaging machine, comprises a cigarette infeed conveyer for forming a row of cigarettes opposite a transfer device for sweeping the row into a tray and means 15 which is automatically inserted behind the last cigarette of a row, in response to counting means 6, to separate the row, check cigarettes advancing behind it and act as a guide during transfer. A braking element 507 may form a gap in the incoming cigarette stream to facilitate the insertion. The conveyer consists of two spaced belts 3, 103, see also Figs. 1, 5 (not shown), scanned by photo-electric means 6 which, when the desired number of cigarettes has passed beneath it, causes the block 507 to rise between the belts to lift and halt the cigarettes above it and so create a gap in the flow. Linkage 17, 18, see also Figs. 4, 5 (not shown), now swings a lever 13 carrying the element 15 upwards so that the latter enters the gap. The lever is pivoted for limited movement on a carriage 108, slidable in the direction of cigarette flow, and after the initial movement of the linkage has swung the lever upwards, the carriage moves along at the same speed as the cigarettes until the element 15 and a fixed stop 105 define the ends of the row opposite the transfer device, a transversely reciprocating pusher plate 5. The initial movement of the carriage caused to block 507 to be withdrawn. The plate 5 sweeps the row into the tray 2 which then descends one layer thickness. The carriage commences its return stroke, the initial movement withdrawing the tongue-piece beneath the belts and permitting continued cigarette flow.
Patent GB-1301989-A (GB)
IPC: B22D11/111
Filed: 1971-04-19
Abstract: 1301989 Exothermic compositions CARBORUNDUM CO 19 April 1971 [17 Feb 1970] 21927/71 Heading C5G An exothermic composition comprises, percentages by weight, 18 to 90% particulate silicon carbide and 0À05 to 15% one or more of particulate lead dioxide, lead chromate, potassium dichromate. Particle sizes lie in the range 150 to 360 mesh (Tyler). A combustible organic filler, e.g. sawdust, plastics, paper, or cereal husks, decomposition retardants, e.g. silica and/or alumina, and calcium chloride and ferrosilicon may be included.
Patent GB-972518-A (GB)
Title: Adjustable holding mechanism
IPC: A47C20/08
Filed: 1962-06-06
Abstract: 972,518. Disc brakes. ANDERSON CO. June 6, 1962 [June 8, 1961], No. 21935/62. Heading F2E. [Also in Divisions A4 and E2] A disc brake for preventing rotation of a screw 41 relative to a rod 26 comprises a friction disc 75 fast with a sleeve 73 and urged by Belleville springs 89 into engagement with a friction disc 72 fast with the screw 41. The sleeve 73 is held against rotation relative to the rod 26 by a pin 34 which passes through axial slots 76 in the sleeve. The brake is released by turning lever 80 fast with a shaft 79 and a pin 84 which co-operates with a cam surface 88 on a disc 87 fast with the sleeve 73 to move the latter left against the action of the springs 89. In Figs. 5-7 (not shown) two brake discs on either side of the disc on the screw are moved in opposite directions into engagement with the latter disc by spring means and are moved out of engagement by cam means.
Patent GB-1131365-A (GB)
Title: Mercury feed means to alkali metal chlorine electrolytic cells
IPC: C25B9/14
Filed: 1965-11-11
Abstract: 1,131,365. Feeding mercury to a mercury cathode electrolytic cell assembly. PPG INDUSTRIES Inc. Nov.11, 1965 [Nov.12, 1964], No.22005/66. Divided out of 1,131,363. Heading C7B. The subject-matter of this Specification is contained in the parent Specification but the claims are concerned with a method of feeding mercury to an alkali-metal chlorine electrolytic cell assembly.
Patent GB-928642-A (GB)
Title: Improvements relating to hydraulic power lifts for vehicles
Inventor: FOWLER JOHN LAWRENCE
IPC: A01B63/10
Filed: 1958-07-09
Abstract: 928,642. Tractor power-lift mechanisms. FAIREY CO. Ltd. Oct. 9, 1959 [July 9, 1958], No. 22068/58. Class 79(1) A hydraulic power lift for a vehicle comprises a continuously driven pump 18 connected to a hydraulic jack 10 through a servo valve 17 which connects the supply from the pump to the jack inlet to raise the jack and is movable into the neutral position shown in which it closes communication between the supply and the jack and connects the supply to return to unload the pump. In the preferred embodiment, the valve 25 is annular and its bore 26 connects the supply line 23, 24 with the return line 35 when in its neutral position. When the valve is moved to the right the supply line is connected to a conduit 31 to raise the jack and communication with the return line 35 is closed while when the valve is moved to the left liquid from the jack flows through the conduit 31 and around the outer cylindrical surface of the valve 25 into the return line 35 which is restored to communication with the bore 26 and hence with the supply line 23, 24 so that the jack is lowered. The hydraulic circuit includes a relief valve 40, a self-sealing coupling 38 for connection of an external appliance and a filter 20 for the pump. Actuation of the valve 25 in response to variations in draught resistance is effected through a link 27 and a spring-loaded bell-crank lever 58 having a follower 60 in engagement with a cam 61 on the lift arms 15. The valve may also be adjusted manually by a lever 50 connected to the fulcrum 57 of the bell-crank lever 58 by a pivoted link 52 and a second bell-crank lever 53. The latter has its fulcrum 54 on a sliding rod 55 connected by a spring-loaded member 56 to the implement to provide an overload release mechanism. -
Patent GB-500564-A (GB)
Title: Improvements relating to miners' electric lamps
IPC: F21S9/04
Filed: 1937-08-11
Abstract: 500,564. Dynamo lamps. LUCAS, Ltd., J., and MARLOW, F. J. Aug. 11, 1937, No. 22072. [Class 39 (ii)] In miners' lamps of the kind in which a turbo-etectric generator operable by compressed air is directly combined with a lamp bulb contained in a glass or other enclosure, the compressed air passes through an automatic pressure-reducing inlet valve which controls electric contacts adapted to shortcircuit the generator or open the lamp circuit in the event of fracture of the bulb enclosure or of the air supply pipe. The inlet valve comprises a cylinder i containing a piston h. which is loaded by a spring j on one side, the opposite side being integral with or attached to a tapered stem k passing through an opening m in the adjacent end of the cylinder. The outer end of tile stem k is formed as a contact member o adapted to co-operate with an adjacent fixed contact p. In operation, compressed air entering an inlet y circulates the enclosure b and enters the cylinder i through inlet m, thereby forcing the piston inwardly and opening the contacts o, p, the air then passing through a lateral orifice n to the turbine nozzle. Failure of the air pressure on the iulet side of the valve allows the contacts o, p to be brought together to short circuit the generator ; alternatively the contacts may be so arranged that the bulb circuit is opened when the stem k is in the fully open position.