baber/WOPTO huggingface dataset:
Patent GB-414423-A (GB)
Title: Improvements in or relating to telephone system signalling arrangements
IPC: H04B3/20
Filed: 1933-02-09
Abstract: 414,423. Two-way transmission. STANDARD TELEPHONES & CABLES, Ltd., Connaught House, Aldwych, London.-(Assignees of Staples, E. M. ; 12, Sutton Drive, Hokokus, New Jersey, U.S.A.) Feb. 9, 1933, No. 3981. Convention date, June 21, 1932. [Class 40 (iv).] In a system including echo-suppressors, supervisory signal currents of particular frequencies are enabled to pass in either direction irrespective of the condition of the echosuppressors. In Fig. 1, the echo-suppressors comprise relays 29, 30 which operate in response to speech currents in the paths 1, 2 respectively to short-circuit the opposite path. These shortcircuits are however adapted to be opened by relays 27, 28 controlled by amplifier-detectors which respond to signal currents, so that such currents are passed even though the corresponding path may be blocked to speech currents. The signal currents, which may be of frequencies 1000 and 1400 for the two directions, are transmitted by relays 33, 35 under the control of keys and are received by relays 34, 36 which control lamps. In Fig. 2, a single amplifier-detector 10 for signal currents is connected normally to the path 1 and controls relay 27, but on operation of the echo-suppressor by speech currents in that path, relays 40, 41 transfer the connection to the opposite path 2 and the control to relay 28. In a further modification, the amplifier-detector 10 is permanently connected to one path, signal currents being unable to open a short-circuit on the other path.
Patent GB-103041-A (GB)
Title: Improvements in Friction Clutches.
IPC: F16D13/46
Filed: 1916-03-20
Abstract: 103,041. Albion Motor Car Co., and Murray, T. B. March 20, 1916. Clutches, friction.- In plate clutches of the type in which a sliding central plate is gripped between two outer plates, the central plate B', which is preferably the driven part of the clutch, is mounted on a carrier B<3> which is connected by friction plungers B<5> to a sleeve B pressed by a light spring B' towards an adjustable stop A<4> on a sleeve A<1> mounted on the end of the driving-shaft A. The carrier B<3> is notched to engage a disk D' on the driven shaft D. A strong spring C presses the plates into driving relation. The sliding plate E is connected to the cover E<4> of the fly-wheel E' by thinned flexible strips E<2>, Fig. 2. The friction of the plungers B<5> is sufficient to cause the sleeve B and carrier B<3> to move together during the disengagement of the clutch.
Patent GB-1496034-A (GB)
Title: Method and apparatus for purification of water
IPC: B01D15/00
Filed: 1975-01-30
Abstract: 1496034 Purifying water by adsorption filtration EBARA INFILCO KK 30 Jan 1975 [13 Feb 1974] 4119/75 Heading C1C Water and waste water are purified by passing through a packed layer of activated carbon in a tank having a funnel-shaped bottom by (i) supplying the water to the top of the layer of carbon for downward flow, supplying a slurry of activated carbon to the bottom of the layer, slurrying an upper portion of the layer and removing activated carbon in a proportion equal to that added at the bottom whereby the activated carbon in the packed layer is intermittently moved upwardly in the packed layer in countercurrent to the water.
Patent GB-555526-A (GB)
Title: Frequency modulation receivers
IPC: H03D3/00
Filed: 1942-03-28
Abstract: 555,526. Frequency modulation. STANDARD TELEPHONES & CABLES, Ltd. March 28, 1942, No. 4158. Convention date, Nov. 13, 1940. [Class 40 (v)] Relates to frequency-modulation radio receivers of the kind described in Specification 489,636 in which the detected signal is fed back to modulate in degenerative phase the frequency of the local oscillator, and consists in providing means for maintaining a substantially uniform amplitude of IF carrier despite variations in incoming carrier amplitude. The incoming wave passes through a frequency changer 42 and IF amplifier 44 to two parallel-connected amplifiers 56, 57 which have their output circuits 52, 54 tuned above and below the true IF., the coils of each tuned circuit being closely coupled. The tuned circuits feed rectifiers 58, 59 and load resistances 64, 65, and the detected signal appearing across the joint resistances is fed in push-pull to amplifiers 68, 69 and to the signal reproducer. The detected signal is also fed back through a network 49 of the kind described in Specification 514,567 to modulate the frequency of the local oscillator 43 in such sense as to reduce the frequency deviation of the incoming wave. Automatic tuning correction is also effected by smoothed D.C. voltages derived from the resistances 64, 65 and applied through the leads 73 to control the local oscillator. Changes of amplitude in the wave applied to the frequency discriminator are detected across resistances 81, 82 connected in series between earth and the junction of the resistances 64, 65. Slow changes are applied through a delay diode 84 and resistance 86 to modify the gain of the frequency-changer 42 and amplifier 44. More rapid changes are substantially eliminated by negative feed-back provided by resistance 81 and stabilizing network 89. The receiver may have two frequency-changing stages, the frequencycontrol being effected at the second stage, and the amplitude control at the first. Amplitude control may be effected by a limiter.
Patent GB-413048-A (GB)
Title: Improvements relating to eesistance wire for electric fires, heaters and the like
IPC: H01B1/02
Filed: 1933-02-11
Abstract: A resistance wire for electric heaters and the like is made of an alloy consisting of about 80 per cent of nickel, 20 per cent of chromium, and 0,01-2 per cent of calcium.
Patent GB-697943-A (GB)
Title: Apparatus for removing scale and mineral sludge from water tube boilers and steam generators
IPC: F28G1/12
Filed: 1952-02-18
Abstract: 697,943. Cleaning tubes. CLARKSON, A., and VAPOR HEATING CORPORATION. Feb. 18, 1952 [March 1, 1951], No. 4266/52. Class 99 (ii). Abrasive material 26, e.g. small pellets of irregular shapes and sizes and preferably of hardened steel, for removing scale and mineral sludge from the water tubing 10 of a boiler or steam generator is stored in a chamber 25a having a discharge opening controlled by a valve 34 and communicating, e.g., via a chamber 12, with the inlet end of the tubing 10, and when a quantity of the pellets is passed through the opened valve into the chamber 12 the pellets are propelled through the tubing by a stream of fluid under pressure, e.g. delivered from a valved pipe 13. Means, such as a number of removable spacedapart plates 42 having curved edges, communicate with the outlet end of the tubing 10 to deflect the pellets out of the path of the fluid and into a receiving chamber 24a provided with a valvecontrolled discharge opening 27 leading to the chamber 25a. The pressure fluid may pass, with the scale, etc., into a steam separator 22.
Patent GB-195027-A (GB)
Title: Improvements in or relating to combined tractor and trailer vehicles
IPC: B62D53/08
Filed: 1921-12-16
Abstract: 195,027. Page, G., and Dewing, L. Dec. 16, 1921. Compound or articulated road vehicles; stands or supports.-In a six-wheeled vehicle in which the front end of a two-wheeled trailer rests upon a turntable pivoted by a transverse axis on the rear end of the tractor, the complete turntable is mounted on the tractor independently of the trailer, and is provided with rollers adapted to support guides mounted underneath the front end of the trailer to facilitate engagement and disengagement. The guides 3, Figs. 1 and 2, secured to the trailer, are of inverted channel form and bear upon rollers 5 secured to the upper part of the turntable b. The rollers are carried between angle bars 4, and the channels and angle bars are secured toegther by a transverse bolt 10 and catches 8. To support the trailer when disconnected, hinged lifting jacks 11 are provided having an extension 15 to prevent them from going beyond a vertical position. Specification 196,555 is referred to.
Patent GB-689184-A (GB)
Title: Improvements in and relating to capacity microphones with variable directional characteristic
IPC: H04R19/04
Filed: 1950-02-02
Abstract: 689,184. Circuits for electrostatic instruments. NORDWESTDEUTSCHER RUNDFUNK. Feb. 21, 1950 [Feb. 22, 1949], No. 4402/50. Class 40 (iv). A capacity microphone combination having adjustable directional characteristics comprises two microphones having adjustable independent D.C. biases and means for combining their A.C. outputs. By this means it is possible to maintain the response of the combination in a given direction constant irrespective of changes in the directional characteristic. In the arrangement shown in Fig. 11 a pressure microphone 5, 8 having a circular characteristic is combined with a pressure-gradient microphone 6, 9 having a figure-of-eight characteristic, the biases being provided by the potentiometer in such a way that their sum is always equal. Their outputs are combined over condenser 10 and fed to the output valve 12. According to the setting of the potentiometer 13 the resulting characteristic may take on all intermediate shapes from the figure-of-eight through the cardioid (in the middle position) to the circular. The condenser plate 5 of the pressure microphone may contain sack-like depressions, whereas the corresponding plate 6 of the pressure-gradient microphone may contain per. forations. In a modification two microphones having a cardioid characteristic may be combined to produce circular or figure-of-eight or intermediate characteristics. Thus, as shown in Fig. 13, a microphone comprising two movable plates 33, 36 and a fixed plate 32, provided with both sack-like holes and perforations to give each half of the microphone a cardioid characteristic, has the outputs of its two halves combined over condenser 37 for feeding to the output valve 34. In this case the right-hand half of the microphone is provided with a fixed bias - u while the bias of the other half is variable over the range Œu to provide the required range of variation of characteristic.
Patent GB-886659-A (GB)
Title: Improvements in or relating to devices for supercharging internal combustion engines
IPC: F02B37/10
Filed: 1958-02-11
Abstract: 886,659. Engine cooling; driving-gear; charge pumps. GLAMANN, W. Feb. 11, 1958 [May 24, 1957], No. 4424/58. Class 7(2). [Also in Group XXXI] In a motor vehicle I.C. engine, an epicyclic gear 12, Fig. 1, replacing the usual clutch, distributes engine torque between the road wheels and a centrifugal supercharger 8 delivering charge air tangentially into the inlet of a centrifugal compressor 6 driven by a turbine 4 powered by the engine exhaust, the turbine 4 and supercharger 8 being coupled together in a compact unit so that one serves directly as a support for the other. The drive to the compressor 8 is via an articulated shaft 9 and fixed ratio epicyclic gearing (not shown). The gear 12 comprises a planet-carrier 23, Fig. 3, on the engine shaft, an annulus 25 connected to the road wheels and a sun 26 driving via gears 27, 28 a double dog clutch member 32 movable from a central freeengine position shown to engage either a synchronizing cone and stationary dogs 34 for a road wheel overdrive with supercharger disconnection or a synchronizing cone and dogs on a gear 33 meshing a gear 35 on the shaft 9 to give torgue distribution as above. A takeoff 38 may power the fan 40, Fig. 5, of an engine cooling fan-radiator unit which may be disposed transversely of and behind the engine instead of as shown. In a modification, the supercharger 8 is dispensed with, being replaced by the compressor 6 which is driven by the shaft 9 via a multiplying train of spur gears incorporating an over-running clutch, whilst an articulated extension of the shaft 9 powers a belt drive for a cooling fan positioned in front of the engine.
Patent GB-451852-A (GB)
Title: Improvements in and relating to the manufacture of open containers
IPC: B21D22/26
Filed: 1935-02-11
Abstract: 451,852. Making baths &c. STEYRDAIMLER-PUCH AKT.-GES., and RICHTER, H., 3, Marokkanergasse, Vienna. Feb. 11, 1935, No. 4426. Convention date, Feb. 10, 1934. [Classes 83 (ii) and 83 (iv)] [See also Group I] Baths &c. are drawn so that the longer sides, at least, are outwardly bulged as at 3, in both the longitudinal and vertical planes. The sheet is cold drawn preferably in two stages and the rim 8 is then pressed to shape and trimmed off. Sockets 9 for receiving the feet are pressed out and welded on electrically.
Patent GB-547078-A (GB)
Title: Corsets or foundation garments
IPC: A41C1/00
Filed: 1941-04-02
Abstract: 547,078. Corsets. AMYOT, L. J. A. April 2, 1941, No. 4435. [Class 141] A corset comprises a body member having the front edges laced together, slits on either side being provided which extend from the top edge and terminate above the bottom edge being secured by sliding fastenings; a removable panel underlies the front portion and can be fixed at an adjustable height. The front of the garment is furnished with a laced opening 6, Fig. 1, and with slits 7 fitted with sliding fasteners 9, As shown in Fig. 2, a panel 16 may be provided and is secured, at a selected height, by hook and eye fasteners 15.
Patent GB-524949-A (GB)
Title: Improvements in frames or holders for transparencies to be viewed or optically projected
IPC: G03B21/64
Filed: 1939-02-10
Abstract: 524,949. Transparency holders for viewing or projection. LOBSTEIN, H. Feb. 10, 1939, No. 4477. Convention date, Feb. 15, 1938. [Class 98 (ii)] The holder comprises trays 1, 2 interfitting telescopically at la, 2a, and having registering apertures 3, 4 through which may be viewed or projected respectively a transparency bearing a picture and one bearing an inscription. The transparencies may be mounted on a transparent carrier 6, or on an opaque carrier provided with apertures registering with the apertures 3, 4, and may be protected by glass or like cover plates 5.
Patent GB-901128-A (GB)
Title: Method of and apparatus for weighing out loose, flowable materials
IPC: G01G13/00
Filed: 1961-02-07
Abstract: 901,128. Weighing apparatus. HESSER, MASCHINENFABRIK-A.G., FR. Feb. 7, 1961 [March 3, 1960], No. 4528/61. Class 143. Apparatus for measuring out specified quantities of loose and flowable filling commodities by weight comprises a measuring chamber 3, 3<SP>1</SP> for pre-dispensing a quantity of the commodity of a weight below a chosen target weight, a weighing device 8 to weigh the pre-dispensed quantity, measuring chambers 6 holding small quantities of the commodity and electronic means 11 controlled by the weigher for adding to the pre-dispensed quantity the contents of one or more of the chambers 6 in accordance with the deficiency from the target weight determined by the weighing device 8. The loose material, contained in a hopper 2, passes therefrom through an opening 4 to the chamber 3, 3<SP>1</SP> and through a channel 5 to the chambers 6. The volume of the measuring chamber 3, 3<SP>1</SP> is adjustable, e.g. telescopically, so that, when it is moved to the right as seen in Fig. 1, it separates off a weight of material about 5% under the target weight and discharges it into the weighpan 7 of the weighing device. According to the actual difference from the target weight, as determined by the weighing device 8, the electronic device 11 energizes electromagnets 10 associated with the small chambers 6 whereby a requisite number thereof are shifted to the left as seen in Fig. 1 and discharge their contents into the main flow of material passing through a hopper 9 to a package 1. The chambers 6 may all be of the same size or graduated in size, but that of the smallest must be such that the weight of material it holds is within the tolerance weight. If the variation from target weight is more than the sum of the weights of material in the chambers 6, a further control mechanism, dependent on the weighing device 8, may effect adjustment of the chamber 3, 3<SP>1</SP>. Other dispensing means may be used, e.g. coarse weighers or vibratory shoots. The package may be weighed with the pre-dispensed quantity in it and the required difference added separately.
Patent GB-124789-A (GB)
Title: Improvements in Apparatus for Regulating the Depth of Immersion of Submarine Mines.
Inventor: SCHNEIDER EUGENE
IPC: F42B22/18
Filed: 1916-03-28
Abstract: 124,789. Schneider, E. March 28, 1916. Mines, marine.-Relates to automatically anchored mines in which the mine and the anchor both sink to the sea-bottom at first, and the mine afterwards rises to the desired depth under the control of a hydrostatic device. According to the invention, all the control devices are arranged on the anchor, the hydrostatic device acting in conjunction with a balanced lever subjected to a moment of force increasing proportionately to the length of anchor cable paid out. As shown in Figs. 1 to 3, the cable b<3>, on its way from the drum B to the mine C, passes round a pulley E driving a screw spindle e<5> through gearing e<3>, e<4>, a nut F being thereby displaced along the spindle e<5> proportionally to the length of cable paid out. The nut F is guided by a slideway f<1> and carries a bell-crank lever f<2>; one arm of this lever is connected to a spring f<5> adjusted by a nut f<8>, and the other arm has a roller f<4> which bears against, and travels along, the arm G of a lever G, G<1>. This lever is fulcrumed at g<1> and balanced by a weight g<5>, and is connected at g<3> to the stem of a hydrostatic piston K. The nut F is first adjusted so that the distance of the roller f<4> on the arm G from the fulcrum g<1> corresponds to the depth of submersion desired. Then, when the mine is laid and rises from the anchor, the roller f<4> is moved farther away from the fulcrum by the rotation of the pulley E until its pressure overbalances the lever G this deflects a spring catch d<2> and releases a spring pawl D, which thereupon locks the drum B. The drum is held immovable before laying, and its speed is controlled during the paying-out operation by a brake in a bearing b<2>. The lever G, G<1> is normally locked by a nut b<5> on a screw-threaded part f<7> of the spindle of the drum, and is unlocked after the drum has made a few revolutions and paid out a given short length of cable.
Patent GB-583605-A (GB)
Title: Improvements in crates for milk and other bottles
IPC: B65D85/30
Filed: 1944-03-01
Abstract: 583,605. Bottle &c. crates. BLEWETT, R. H. March 1, 1944, No. 4567/45. Divided out of 583,519. [Class 18] A bottle or like supporting insert for a bottle or like crate comprises a flat sheet metal tray E having a number of rows of holes e<2> of a size and shape to receive the bottles or the like and, below each hole, a separate supporting basket F formed of two channel 1 or stirrup-shaped flattened wires or strips f the horizontal portions of which cross each other vertically below the centre of the hole and the ends of which are secured to the tray. The tray is secured to brackets or lugs b on the upright members B, L of the crate by means of screws e passing through a peripheral flange e<1> of the tray. Specification 583,519 is referred to.
Patent GB-217626-A (GB)
Title: Improvements in electric fuses
IPC: H01H85/055
Filed: 1923-02-19
Abstract: 217,626. Hope, V. Feb. 19, 1923. Fusible cut-outs. - The fusible member in a powder-filled cartridge has a cavity such as S<1> in or around it into which the molten metal may subside to ensure interruption of the circuit on fusing. A solid or hollow core D around the fuse may be formed by wrapping it with a material which will readily burn and leave little ash; e.g. silk or like thread may be wound about it or a sac of suitable material with a light distending framework may be applied. Loosely packed irregular pieces of refractory material E may surround the fuse providing interstitial spaces to accommodate the melted metal. Two strips with opposed indentations may be arramged together to provide a space within the fuse or a tubular fuse mav be flattened over portions of its length to provide a cavity either in its central portion or extending throughout the fuse. This cavity may be filled with an inert gas such as CO<2>. The preferred form consists of an easily fusible member S' constituting the cavity, carried by a main fuse element A<7> of comparatively high fusing point as described in Specification 217,625. A complete fuse of this kind combined with a container J constituting an expansion space O arranged as described in Specification 198,383 is shown in Fig. 25.
Patent GB-988768-A (GB)
Title: Improvements in and relating to devices for manufacturing articles of ceramic materials
IPC: B28B13/06
Filed: 1964-02-04
Abstract: 988,768. Moulding ceramic articles. ETABLISSEMENTS MERLIN & GERIN S.A. Feb. 4, 1964 [Feb. 5, 1963], No. 4736/64. Heading B5A. A quantity of ceramic paste placed in a mould 12 is moulded by lowering a rotating die 13 of the configuration shown in Fig. 3. The formed article is ejected from the mould 12 by admitting compressed air into a chamber 22 surrounding the mould. The air passes through perforations 21 in the mould walls and ejects the article by turning a diaphragm 24 lining the mould inside out. The ejection is assisted by a piston 26 operable by a pneumatic cylinder 27. The diaphragm 24 is preferably permeable to air.
Patent GB-617235-A (GB)
Title: Improvements in and relating to electrical control or regulating systems and control or regulating devices
IPC: H02P9/22
Filed: 1943-03-25
Abstract: 617,235. Automatic control systems for dynamo-electric machines &c. SOMERVILLE, T. B., and METROPOLITAN - VICKERS ELECTRICAL CO., Ltd. March 25, 1943, No. 4878. [Class 38 (iv)] Voltage; electrical and other variables in general.-A regulating system or control device comprises two carbon pile or like resistance elements 12, 13 mechanically coupled to be varied in opposite senses by control means which include a polarized magnetic system 1 ... 7 and a control winding responsive to a controlling or a controlled quantity, or to both, so that the forces on the resistance elements will be balanced for values of the quantities which have a desired relation to each other and a change in this relation will cause differential action of the currents in the resistances to produce a regulating action to restore the relation. As shown, a bar armature 10 pivoted at 11, for example as in Specification 581,482, [Group XXV], carries a spring member 18 which reacts through pins 21, 22, upon each pile to define a normally balanced position of the bar with reference to the magnetic system, which may be polarized by a permanent magnet 4 or by a coil. The controlling and controlled quantities may each be applied to this system in opposition by a winding or windings, or one of them may be applied mechanically. Either quantity may be constituted by one or two or more components which may be applied through one or more windings ; or partly by mechanical means. A system providing for regulation of the voltage of a generator 23 at any value through a range of positive and. negative values has differential exciting windings 25 respectively in series with the carbon piles 14 and coils 8, 9 on the regulator producing flux variations in opposite senses in the ends of the armature bar and connected to be responsive to the difference between the generator voltage and the voltage pre-set upon a reversible potentiometer 24. These control devices may replace the vibrating regulator devices in the systems described in Specification 616,516.