baber/WOPTO huggingface dataset:
Patent GB-240203-A (GB)
Title: Improvements in or connected with apparatus supplying beer and other beverages to drawing-off pumps or engines
IPC: B67D1/16
Filed: 1924-05-27
Abstract: 240,203. Semark, F. W., (trading as Brewers Equipment Co.), and Allen, J. H. May 27, 1924. Waste liquid, catching and returning.- Beer which is collected from dripping taps &c. for subsequent admixture with fresh beer from the main supply passes to a vessel 3, divided by a horizontal filter 7, and containing a float 8,provided with a rod 8a the lower end of which co-operates with a seat 11 to prevent complete withdrawal of beer from the container through the pipe 16, which is provided with a non-return valve 14 and is connected to the pump drawing beer from the main supply. The rod 8a is grooved for liquid to pass the brushes 10. The lift of the ball-valve 14 is regulated by a screw-plug 17. Speoincations 16166/93. [Class 116, Shop &c. accessories] ; 15833/04, 13793/07. 1906/09; and 1766/12 [Class 46, Filtering &c.], are referred to.
Patent GB-528631-A (GB)
Title: Improvements in audio frequency amplifiers
IPC: H03G3/08
Filed: 1939-05-01
Abstract: 528,631. Valve amplifying circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. May 1, 1939, No. 12980. Convention date, April 30, 1938. [Class 40 (v)] In a two-stage audio-frequency amplifier, degeneration is provided in the second stage and regeneration in the first stage, while the volume control means in the first stage is so arranged that the amount of regeneration increases as the volume is increased. The Figure shows an amplifier in which resistance 26 is common to the stages 9, 27 and produces regeneration while resistances 26, 39 produce degeneration in the stage 27. The volume control potentiometer 16 has a substantially linear resistance law but, in consequence of its control of the regeneration applied to the stage 9, the volume control operates with an approximately logarithmic characteristic.
Patent GB-483888-A (GB)
Title: Improvements in or relating to electron discharge tubes for use for ultra-short waveradiation
IPC: H01J25/68
Filed: 1937-05-06
Abstract: 483,888. Electron oscillators; directive wireless signalling. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. May 6, 1937, No. 13012. Convention date, May 6, 1936. [Classes 39 (i) and 40 (v)] In an electron-discharge tube used for direct ultra-short-wave radiation a number of anodes A1, A2, A3, Fig. 1, are provided, these also forming a multiple dipole aerial system; the anodes are excited by electrons oscillating within the tube between an indirectly heated cathode K and a retarding electrode B. Only portions S, S1 of the cathode have emitting coating. The anodes are coupled together by a single or double wiring L, to determine the phase relationships between the anodes and to enable a biassing potential to be applied to the anodes. A reflecting electrode R, Fig. 2, may be placed to one side of the anodes to concentrate radiation to one side of the tube. Filamentary cathodes K1, K2, K3, Fig. 3, which may be divided as shown at K3, K<1>3, may be used ; the filaments are opposite the anodes and may be housed in slots in a shield F at cathode potential or placed in front of such a shield. The shield may have concave reflecting parts about the filaments. In place of thermionic cathodes, the cathode K and plate B may both be capable of secondary emission, the potential of the anodes maintaining the electron cloud in to-and-fro osciltation. A " fir tree " aerial is shown in Fig. 6 made up of a number of dipole anodes A1, A<1>1 . . . . A12, A<1>12 suitably connected by wiring L, which is also used for biasaing.
Patent GB-136462-A (GB)
Title: Improvements in Apparatus for Aerating or Carbonating Liquids.
Inventor: BAILEY ARCHIBALD GEORGE
IPC: B01F3/04
Filed: 1919-05-23
Abstract: 136,462. Bailey, A. G. May 23, 1919. Feed, regulating; forcing gas into liquid; valves.-In aerating-apparatus in which liquid is supplied by a pump driven by an automatically-controlled electric motor, the gas is supplied to the bottom of the aerating- vessel, which is provided with a hand-operated relief valve, so that if the motor breaks down, the apparatus can be worked by hand. Liquid is supplied to the vessel a by a pump j driven by an electric motor, the supply of current to which is controlled by a switch k connected to a lever p carrying a counterweight q and a movable vessel o connected to the vessel a below and above the liquid level by flexible pipes m, n. Gas is admitted to the vessel a by a pipe c terminating in a fitting with radial holes. A gas-relief valve e is provided which is normally kept closed by a weight s, but can be opened by hand, when liquid enters the vessel a through the pump valves under the pressure in the main.
Patent GB-263025-A (GB)
Title: Improvements in and relating to displaying and advertising devices
IPC: G01J3/52
Filed: 1926-05-21
Abstract: 263,025. Catt, S. G. May 21, 1926. Pattern cards. - In a display device in which plates or panels of different colours, materials, &c. are removably mounted behind a stencilled design, the stencil d is formed in a hinged front b of a box a which contains removable holders for groups of plates. Each holder may comprise a zig-zag folding strip g, Fig. 5, provided with pockets h, flaps j, i, and a finger tab g'. The box front b may have a tab b<1> and chart-holding loops k. The displayed plate e<1> is held in position by a hinged flap e fastened by a catch f. A cover c protects the front b, the opening d in which may be provided with transparent material. The plates e<1> may each have two display faces, or may have a cloth &c. backing to provide a friction grip.
Patent GB-273862-A (GB)
Title: Improvements in or relating to electric selectors
IPC: H04L15/26
Filed: 1926-05-25
Abstract: 273,862. Lea, N., and Radio Communication Co., Ltd. May 25, 1926. Selectors. - An electric selector adapted to respond to a wireless distress signal or the like consisting of a regular series of dashes and spaces, comprises a disc HD which is clutched to a continuously-rotating drum Z during receipt of a dash signal and is stationary between signals, so as to be moved progressively by fixed amounts 'to a terminal alarm-operating position; if the dashes are less than three - seconds, or more than five, in length, or if the spaces are more than two seconds in length, the disc returns to its original position, under control of cam-discs DD, SD respectively, in conjunction with the disc HD. The discs HD, DD are rotated together by a relay-operated clutch DC, while the disc SD is operated by a relay-operated clutch SC, all the discs being spring-returned. On receipt of a signal, relay J, Fig. 4, is operated to close contact M, and open G, E. Contacts A, B, D are open, but contact C closed. The clutch DC operates and after nearly three minutes, a cam on disc HD closes contact A, Fig. 2, which remains closed until the disc returns towards its original position. After three seconds, a tooth on the disc HD passes a pawl on the armature of a release relay RC. When the dash ceases, the disc HD returns until the pawl enters the tooth while the disc DD returns to its original position. If the dash had exceeded five seconds, the disc DD would have closed the tumbler switch B and the release relay RC would have lifted the pawl and allowed the disc HD to return to normal. Contacts G, E are now closed and since contact A has closed, the clutch SC operates until the next dash starts. If the space exceeds two seconds, the disc SD closes contact D so that the release clutch operates. The clutch relay SC, Fig. 4, locks over contact F, so that it remains energized after the next dash has begun, and if the second dash is of less than three seconds duration, contacts E, D are closed to energize the relay RC, and all the discs return to normal. After three seconds length of dash, the disc DD opens contact C so that SC releases. To give warning in case of failure to rotate, an electric bell circuit contains contacts controlled by the relay DC and the discs HD, DD. The relay DC may have a sluggish relay in series therewith, or its armature acts through a spring, so that the clutch grips before the respective contact is operated. The otiher contact is closed until the discs rotate, so that the alarm is given if the operation of the clutch fails to rotate the discs.
Patent GB-1298640-A (GB)
Title: Improvements in or relating to the preparation of formaldehyde
IPC: C07C45/38
Filed: 1970-03-18
Abstract: 1298640 Direct contact cooling of gases SOC CHIMIQUES DES CHARBONNAGES and KARL FISCHER 18 March 1970 [20 March 1969] 13132/70 Heading F4K [Also in Divisions C2] Gases emanating from a catalyst bed 2 are cooled by the injection of cooled effluent gases led along pipes 9 which are perpendicular to the plane of the drawing and have holes 10 in their upper parts surmounted by a baffle.
Patent GB-552172-A (GB)
Title: Improvements in or relating to heating and ventilating systems
IPC: F24H3/04
Filed: 1941-10-13
Abstract: 552,172. Air conditioning apparatus. SKINNER, G. D., and BENJAMIN ELECTRIC, Ltd. Oct. 13, 1941, No. 13158. [Class 137] Air is drawn by a fan 5 through a filter 18 consisting of oily fabric, is sterilized by ultra-violet radiation from electric discharge lamps 4, and is heated by an electric heater 3 before discharge through a louvred opening 2. An ozonizer, not shown, may also be employed. The lamps are maintained at a temperature of about 75‹ F. by screens or deflectors 16, 17. The windings of the electric motor 6 driving the fan are used to control the discharge lamps whereby the use of inductive chokes is eliminated. In hot weather, the heater is not used, and the device merely recirculates, the Specification 514,377, [Group III], is referred to.
Patent GB-1155238-A (GB)
Title: Ground Anchorage Structure.
Inventor: GOODALL CHARLES
IPC: E04H12/22
Filed: 1967-03-21
Abstract: 1,155,238. Foundations for columns; bases for posts. SWYFTITE Ltd. 18 March, 1968. [21 March, 1967], No. 13197/67. Headings E1A and E1B. A foundation for a column comprises a framework 10-14 having sockets 15 welded thereto for the reception of anchor pins 16 and a base assembly 17, 18, 19 having bolt openings 20 to locate the column. The framework may be made up from bars of anglesection, semi-circular or channel-shaped sections or from lengths of tubing of square or rectangular cross-section and the resulting framework may be of T- or H-shaped crosssection or closed, polygonal construction.
Patent GB-693971-A (GB)
Title: Improvements relating to hydraulic power units
IPC: F15B15/18
Filed: 1950-05-25
Abstract: 693,971. Hydraulic accumulators; hydraulic clutches; hydraulic machines. ELECTROL, Inc. May 25, 1950 [May 28, 1949], No. 13201/50. Class 69(ii) An accumulator and reservoir unit for a hydraulic power unit comprises an expansible and contractible accumulator chamber which receives liquid from a pump, an expansible and contractible reservoir chamber which supplies liquid to the pump, and pressure means common to and acting on both chambers tending to contract them whereby the volume of each chamber will be adjusted to correspond with the volume of liquid under pressure therein, the pressure means being so constructed and arranged as to maintain the liquid in the accumulator chamber under higher pressure than the liquid in the reservoir chamber. The hydraulic unit may include a motor driven pump. In the figure an accumulator and reservoir unit 14 comprises an accumulator chamber 21 the volume of which is variable by movement of a piston 22 and a reservoir chamber 25 the volume of which is variable by movement of a piston 24. A fixed partition 26 is located between the pistons and air or gas under pressure is introduced into a space 33 between the piston 22 and the partition 26 through a valve 32. The piston 24 carries a plunger 29 which projects through the partition. A pump 11 of gear or lobe type driven by an electric motor 10 supplies liquid under pressure through a passage 18 leading to the chamber 21 and receives liquid from the reservoir chamber through a passage 23 which is connected to a return passage 19 from a selector valve 40 which controls the supply of liquid from the chamber 21 to a hydraulic jack 58. The valve also controls the exhaust of liquid from the jack to the return passage. The chamber 21 may supply any type of hydraulic motor. It may be used with a reversible rotary hydraulic motor and other types of selector valves. The arrangement is self contained and usable in any position. It may be used for controlling the operation of rudders, wing flaps and the like in guided missiles and similar devices.
Patent GB-142677-A (GB)
Title: Hot water supply systems
IPC: F24D3/00
Filed: 1919-05-26
Abstract: 142,677. Haden & Sons, G. N., and Adams, H. J. May 26, 1919. Heating buildings.-Hotwater supply systems for buildings at a distance from the heating station comprise boilers b supplied from a tank a and delivering through pumps c to local storage tanks d; these supply heating &c. pipes g in the various buildings, which service pipes return the water to closed tanks h from which it is returned to the boilers by pumps i, the more distant pumps i returning the water through the nearer tanks h. Each storage tank has a thermostatically-controlled valve k whereby when the water in the tanks d falls below a given temperature, it is returned to the boilers through pipes for re-heating. In a modification for hilly districts, the heating station is at a low level and the return water passes through the various tanks h to the boilers by gravity. The pumps i and tanks h nearer the boilers may be of increased capacity.
Patent GB-347011-A (GB)
Title: Improvements in and relating to electric discharge devices
IPC: H05B41/04
Filed: 1930-04-29
Abstract: 347,011. Discharge apparatus. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.- (Assignees of Buttolph, L. J. ; 1, Columbia Avenue, Grantwood, New Jersey, U.S.A.) April 29, 1930, No. 13203. Convention date, April 29, 1929. [Class 39 (i).] A gaseous discharge tube operating with a hot cathode and having means for initiating the discharge is provided with a device responsive to temperature changes in the cathode for closing the circuit of the dischargeinitiating means when the cathode has reached its normal operating temperature. Fig. 1 shows a tube having a hot cathode 3 and an iron cored inductance 20 for initiating the discharge. The cathode consists of a bimetallic helix carrying a contact 9 which moves as the cathode becomes heated and abuts against a second fixed contact 11 when the cathode has reached its operating temperature. This completes a circuit through the inductance 20, cathode 3, contacts 9, 11, a mercury switch 22, and resistances 23, 18. The core of the inductance 20 thus becomes magnetized and acts upon the switch 22 to open the circuit, thus producing a high voltage surge which initiates the discharge between the cathode 3 and one of the anodes 2. The cathode is heated by an internal filament 8 as shown in Fig. 3, and the helix may be made of nickel and coated with alkaline earth oxides. The temperature responsive device may alternatively consist of two bimetallic plates having the filament situated between them. As the filament becomes heated the plates bend inwards and finally snap together to complete the external circuit. In a further modification a bimetallic element is situated in proximity to but outside the tube. The bimetallic element is provided with heat-absorbing fins which embrace the tube. Fig. 10 shows a further modification in which the bimetallic element 35 is situated within the tube and welded to the cathode 3. Fig. 12 shows a further modification in which the heatresponsive element consists of a collar 36 made of magnesia, lime, rare earth, or similar substance having a high resistance when cold and a low resistance when hot. The collar surrounds the cathode 3 and is connected by a wire 10 to the circuit containing the mercury switch 22 and inductance 20. Owing to the high resistance of the collar 36 when cold the initial current is insufficient to operate the switch 22. When the cathode has reached its operating temperature, the resistance of the collar 36 is sufficiently low to pass a current large enough to operate the switch 22 and break the circuit through the inductance 20.
Patent GB-724483-A (GB)
Title: Improvements in and relating to top rolls for spinning and roving frames
Inventor: COTCHETT LOUIS MYER
IPC: D01H5/74
Filed: 1953-05-12
Abstract: 724,483. Ball bearings. TEXTILE ENGINEERING CORPORATION. May 12, 1953. No. 13286/53. Class 12 (1) A tap roll for spinning and roving frames comprises outer shell members 5. rotatably mounted on a stationary shaft 1 by balls 15 and cones 13 which are slidable on the shaft 1, and end caps 29, which retain the cones 13 on the shaft, seat against shoulders 37 formed on the shaft and serve to load a spring 40 and thus automatically take up the slack and adjust the bearing tension. The shell members 5 are joined by a sleeve 7, and the whole is surrounded by a cot 11. Sealing means comprising a felt washer 21 and a split metal washer 25 are provided on each cone 13. Two such assemblies are separated by a sleeve 27 slidably mounted on the shaft 1, the caps 29 being screwed to the ends of said shaft.
Patent GB-1401693-A (GB)
Title: Ozonisers
IPC: C01B13/11
Filed: 1972-03-23
Abstract: 1401693 Ozonizer supply systems ELECTRICITY COUNCIL 20 March 1973 [23 March 1972] 13324/73 Heading H2H Apparatus for producing ozone comprises a pair of electrodes 11, 12 having a dielectric material 13 placed in the gap therebetween and means for feeding air or other oxygen containing gas into the region between the electrodes, the electrode 12 being supplied with a direct potential switchable to alternate positive and negative potentials from high voltage lines 20, 22 by means of two switches; as shown thyratrons 16, 18; the lines 20, 22 being energized from an A.C. source 25 by way of a step-up transformer 26 and rectifier 27, the thyratrons being controlled to become alternately conductive by means of a variable frequency pulse generator 32 the output frequency of which is controlled by a frequency control unit 35. The electrode 11 is connected to a point 14 of datum potential, for example, earth potential, and the electrode 12 may be constituted by a conductive liquid flowing over the surface of the electrode 11 so as to cool the dielectric 13.
Patent GB-1069864-A (GB)
Title: Improvements in tufting machines
Inventor: ELLISON RONALD
IPC: D03C3/20
Filed: 1965-03-30
Abstract: 1,069,864. Tufting machines. ELLISON TUFTING MACHINERY Ltd. March 18, 1966 [March 30, 1965], No. 13365/65. Heading D1G. [Also in Division G3] A tufting machine is provided with a pattern control device comprising a source of infrared radiation, a pattern movable past said source and constructed to transmit a reflect infra-red radiation in pattern-defining areas, and a plurality of infra-red sensitive cells each of which exercises a control function on one or more yarns. As shown, an endless pattern belt 1 is traversed by rollers 2, 3 under a row of infrared sensitive cells 4 mounted in drillings in the lower end of a radiation guide 13. Light from a row of lamps 6 is directed by reflectors 7 on to the upper end of guide 13, but first passes through a filter 8 having a pass band for wavelengths between 0.7 and 1.1 microns, whereby only infra-red radiation reaches the pattern for reflection on to the photocells. The pattern is defined by smooth areas of maximum reflection and rough areas of minimum reflection. One photocell, viewing a maximum reflection band at one end of the pattern, is connected via a feed-back circuit to the current supply to the lamps for varying the illumination to maintain a constant value of the reflected radiation intensity to compensate for a change of pattern or variation of reflectivity of a given pattern with time. A pattern with transmitting and opaque areas may be used alternatively, the pattern then being wrapped around a drum with the light source and filter being located inside the drum.
Patent GB-121930-A (GB)
Title: Improvements in Means for Anchoring the Traction Cable of Motor Ploughs.
Inventor: BLANCHARD ADOLPHE
IPC: A01B3/72
Filed: 1918-01-02
Abstract: 121,930. Blanchard, A. Jan. 2, 1918. Steam and other power cultivation of land.- In the system of cultivation in which ploughs haul themselves along by means of anchored cables passing round motor-driven winch-drums carried by the' ploughs, special means are provided for anchoring the cables. The ends of the cables 49 are hooked into the links of two chains 47 fastened along the sides of the fields by stakes 48 driven through the links.
Patent GB-914557-A (GB)
Title: Improvements in or relating to reproduction processes and apparatus for electricallyconverting a corrected three-colour separation record into a corrected four-colour separation record
IPC: H04N1/60
Filed: 1959-04-20
Abstract: 914,557. Copying in colour by scanning. HELL, R. April 20, 1959 [April 21, 1958], No. 13405/59. Class 40 (3). Signals Gd, Rd, Bd representative of the three colour components of an original image in terms of the relative transmissivities or reflections of positive records are applied through controllable-gain amplifiers 1, 2, 3, to provide signals Gv, Rv, Bv for forming the three colour components in a four-colour record, whilst the largest of the signals Gd, Rd, Bd at any instant is selected by a circuit 7 to provide a signal S for forming the black component, the signal S also being applied through non-linear circuits 4, 5, 6 to control the gains of amplifiers 1, 2, 3 so as to increase the colour component signals to bring about under-colour removal as a function of the black component. In accordance with a first feature of the invention, the maximum singal S max from circuit 7 is applied to one end of a potentiomter 8 and a constant reference voltage U 0  representing 100% transmissivity as reflection is applied to the other end, the signal S for forming the black component being taken from the adjustable tapping. By this means it is possible to select for S any value between the two extremes for four- and three-colour reproduction where the black content is conveyed respectively either wholly in the black printer or wholly in the combined colour printers. At intermediate positions the black content is shared between the black and colour printers. In accordance with a second feature of the invention, the black component signal may be varied throughout the image so that bright parts of the image are reproduced in three-colour form and dark parts are reproduced in four-colour form. To this end, the potentiometer 8 is adjusted so as to deliver the full value of S max and this signal is then passed through a controllable-gain amplifier 9 the gain of which is varied by a signal P representing a parameter of the original record, e.g. the brightness of the red or yellow component, which is applied to the amplifier via a non-linear circuit 10. Specification 846,713 is referred to.
Patent GB-1189614-A (GB)
Title: High Pressure Discharge Lamps.
Inventor: HIGASHI TADATOSHI
IPC: H01J61/18
Filed: 1968-03-20
Abstract: 1,189,614. Discharge lamps. TOKYO SHIBAURA ELECTRIC CO. Ltd. 20 March, 1968 [23 March, 1967], No. 13432/68. Heading H1D. A high-pressure discharge lamp filling comprises a starting rare gas, e.g. argon at 20 mm. mercury pressure, from 0À5-10 mgms/c.c. of mercury, from 1À2 10<SP>-7</SP> to 1À2 10<SP>-5</SP> gm-atoms/c.c. of at least one rare earth element, or its halide, selected from the group thulium, erbium and holmium, from 1À0 10<SP>-7</SP> to 4À10<SP>-6</SP> gm.-atoms/c.c. of thallium, and a halogen in a total quantity of more than 4À6 10<SP>-7</SP> gm-atoms/c.c. but less than the sum of one-third of the chemical equivalent of mercury, the chemical equivalent of the rare earth element and the chemical equivalent of thallium. The discharge tube is of quartz having an inside diameter of 16 mm., an arc length of 50 mm. and an inside volume of 12 c.c. A fluorescent layer including a rare earth element which emits red and absorbs ultra-violet, may be disposed on the inner wall of an outer bulb surrounding the discharge tube.