baber/WOPTO huggingface dataset:
Patent GB-484641-A (GB)
Title: A method of suppressing or reducing the propagation of sound in air, in particular in directed currents of gas
IPC: G10K11/172
Filed: 1937-07-07
Abstract: 484,641. Silencing gaseous currents. FRANCOIS CEMENTATION CO., Ltd. July 7, 1937, No. 18899. Convention date, Jan. 28. [Class 7 (ii)] The propagation of sound in air or gaseous currents is suppressed or reduced by a lowfrequency yieldingly-mounted oscillatory system connected to means for damping the oscillations. Fig. 1 shows a gaseous flow channel 1 fitted with a series of oscillatable plates 2, 2a arranged in rows at right-angles to each other, but parallel to the direction of flow. The plates are suspended by cords or wire cables 3 fitted with dampers 4. These may consist of telescoping members 5, 6, Fig. 3, separated by a spring 7 and filled with a damping-substance, such as oil, which is forced through the perforated piston head 8. The plates 2 may be of iron or other metal combined with aluminium, artificial resins, glass, wood, rigidly-held cloths, &c., or other materials with inherent damping properties ; or they may be composed entirely of the latter kind of elements.
Patent GB-405881-A (GB)
Title: Improvements in or relating to exposure meters for photographic cameras
IPC: G03B7/02
Filed: 1933-07-04
Abstract: 405,881. Exposure meters. LEITZ GES., E., Optical Works, Wetzlar, Germany. July 4, 1933, No. 18936. Convention date, July 4, 1932. [Class 98 (i).] In an exposure meter of the kind in which the photometric rays are passed through an objective and an eyepiece and through a lightweakening device which is adjusted until a setting mark disappears, the camera objective and diaphragm themselves constitute a lightweakening device and a further adjustable light-weakening device is directly associated with the shutter setting mechanism. The further light-weakening device may comprise polarizing prisms or grey wedges. As shown, marginal rays E<1>, outside the image-forming cone E, passing through the objective B and diaphragm C are directed by prisms F, K through the eyepiece L of a view-finder L<1> and pass through an indicator disc G provided with grid-like markings and through adjustable wedges H, J. The wedge H is held by a spring H<2> in contact with a cam H<1> attached to a lug H<3> bearing an emulsion speed scale H<4>; the wedge J is held by a spring J<2> against a cam J<1> secured to the shutter setting spindle which is operated by a milled head N<1> bearing a shutter speed scale N<2> ; the two scales co-operate with arrows M' on a casing M. In use, the diaphragm C and scale H<4> are set to the appropriate positions, and the head N' is turned until the markings of the indicator disc just disappear, thereby setting the shutter correctly. A modified arrangement is described embodying a single wedge.
Patent GB-479001-A (GB)
Title: Improvements in and relating to electric discharge devices
IPC: H01J13/28
Filed: 1937-07-08
Abstract: 479,001. Discharge apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. July 8, 1937, No. 19023. Convention date, July 9, 1936. [Class 39 (i)] A discharge occurs between an anode and a liquid cathode in a gas or vapour at a pressure of at least one atmosphere, and the space around the anode is deionized by a gas or vapour stream adapted to flow from the cathode and past the end of the anode. A mercury cathode 1 of a rectifier is contained in a tube which is connected through a pipe 14 to a condensation chamber 9. A tube 13 surrounds the cathode tube and is provided with slots through which mercury overflowing from the cathode tube is supplied to the reservoir 7. The reservoir is heated to generate vapour which is converted into a stream of high velocity adapted to flow past the anode 3. The vapour is conducted from the anode chamber to the chamber 9 through a non- conducting pipe 12 the dimensions of which are such that a high vapour pressure is maintained in the anode chamber. A starting electrode 2 is supplied with current impulses to strike the arc each cycle when no arcmaintaining anodes arc provided. When arcmaintaining anodes are provided, baffle plates are fitted to prevent charge carriers from the auxiliary arc front passing into the anode chamber. Condensation in the device is prevented by a surrounding oven 10 kept at a temperature of 400‹ C. A supplementary gas filling may be provided. The envelope may consist of ceramic material or of metal. The vapour-generating liquid 7 may be different from the cathode material in which case the liquids are separated by utilizing the difference in their specific gravities. In another form, a pump may be used to circulate a gas stream.
Patent GB-404334-A (GB)
Title: Combined light and heat radiator for medical purposes
IPC: H05B3/00
Filed: 1932-07-05
Abstract: 404,334. Radiation apparatus for medical treatment. HALPERN, A., 1, Annagasse, Vienna. July 5, 1932, No. 19027. Convention date, July 14, 1931. [Class 81 (ii).] An appliance for therapeutic treatment with heat and light comprises a hollow conical, cylindrical, or other body 1, of fireclay or porcelain, supporting on its outer side spirals of heating wire and containing a socket 5 for an incandescent, mercury vapour, glow discharge or other lamp 5a. The body 1 is mounted in a reflector 1a and a second reflector 4 is provided to screen the lamp 5a from radiant heat. The socket 5 is spaced from the body 1 by mounting it on four metal stirrups 3, air being circulated through the space a by the provision of tubes 7 in the body 1 communicating with apertures 8 in the reflector 1a or by leaving the base of the body 1 open : the reflector 4 is spaced from the body to permit egress of hot air. An additional heat screen of asbestos 2 may be provided around the stirrups 3. The Specification as open to inspection under Sect. 91 states that the heating resistance may be of sheet metal. This subject-matter does not appear in the Specification as accepted.
Patent GB-698372-A (GB)
Title: Improvements in orbital lathes for turning crankshafts
Inventor: IRTENKAUF JOSEF
IPC: B23B5/18
Filed: 1951-08-13
Abstract: 698,372. Crank-shaft lathes. BOEHRINGER GES., GEB. Aug. 13, 1951, No. 19055/51. Class 83 (iii). An orbital lathe for simultaneously machining the crank-pins of a crank-shaft by tools arranged in pairs, the tools of each pair being attached to a tool-holder on opposite sides of a crank-pin, comprises a number of such tool - holders mounted for orbital motion on two synchronously rotating master crank-shafts journalled within a cradle pivotally mounted within the frame of the machine for rocking motion about an axis extending parallel to the work spindle, said cradle being rocked for advancing and retracting the cutting- tools mounted at substantially equal distances from said axis which is located between the master crank-shafts, work spindles for two crank-shaft blanks being mounted in the frame at substantially equal distances from said axis and each tool support carrying two pairs of tools. The machine frame comprises a base 11, Fig. 2, columns 10, 10<SP>1</SP>, rigidly connected therewith, and a hollow beam 12 at the top connect. ing the columns. The columns support headstocks 13, 13<SP>1</SP>, which carry synchronouslyrotated spindles with chucks 16, for supporting and driving at both ends, two crank-shafts K to be machined. Also supported between the columns on trunnions 22, Fig. 4, at the rear of the machine, is a cradle 21 rotatable about a central axis 20, Fig. 3, parallel to the work axes. The cradle carries a pair of master crank-shafts 25, 26, Fig. 3, equally spaced above and below its main axis and rotating synchronously with the work through gearing which remains unaffected by tilting movement of the cradle. The master crank-shafts are of the same throw as that required on the work-pieces K and each corresponding pair of master crank-pins is engaged by connecting bearings 45 on the arms 44 of tool carrier-plates 43. The latter are thus constrained to move in an orbital path and pairs of tools 46, 47, and 48, 49, operate respectively on the upper and lower work-pieces. Cutting feed of first the upper tools and then the lower tools is effected by the tilting movement of the cradle 21 through the reciprocation of a fluid piston-and-cylinder 51, 54. The main drive to the work and master work-shafts is from an electric motor 17, Fig. 2, and a variablespeed fluid transmission 18; means (not described), may be provided for varying the speed automatically in relation to the tool feed to maintain a constant cutting speed. Catching and removing cuttings.-A removable plate 55, Fig. 3, on the front of the machine, directs cuttings into a box 56, Figs. 2 and 3, on rails in a pit below the machine. Cuttings may thus be removed by drawing the box to the rear of the machine.
Patent GB-407084-A (GB)
Title: Improvements in or relating to centrifugal separators
IPC: B04B11/02
Filed: 1933-07-05
Abstract: 407,084. Centrifugal machines. SHARPLES SPECIALTY CO., 23rd Street, Philadelphia, U.S.A.-(Assignees of Ayres, A. U.; Chestnut Hill, Pennsylvania, U.S.A.) July 5, 1933, No. 19075. Convention date, Sept. 12, 1932. [Class 23.] The substances undergoing treatment in a centrifugal separator are caused to pass through a zone of high pressure between the feeding and discharge zones of the bowl, in order to prevent the suction from causing a direct flow of gases through the bowl. The casing 11 is supported on the frame 10 and carries a cushioned drag mechanism at the bottom of the bowl 20 of the type described in Specification 330,158, [Class 23]. The feed connections from the pipe 12 are also of the kind described in that Specification and a disc 15 is arranged to spread the liquid supply over the wall of the bowl. The reduced neck 23 at the head of the bowl passes through the cover 24 which receives the discharge from the bowl through the passage 26. A sealing chamber 27 is formed in the base of the head 22 and is fitted with a discharge weir 28 having a thin lip 29 over which the discharging liquid passes. A ring weir 30 is secured at the top of the head 22 and controls the level of liquid within the bowl 20 and the chamber 27. A sealing member 32 in the chamber is secured by a threaded extension 33, and has an annular flange 34 of a larger diameter than the internal diameter of the weir 30 so that it constantly dips into the liquid and acts as a seal. This prevents gases from escaping with the liquid. Wings 35 assist the acceleration and deceleration of the liquid in its passage round the flange. The weir 28 may be replaced by a weir 36 as shown in Fig. 6, the extended edge 37 of zig-zag form acting to reduce turbulence. A seal of a similar nature may be applied to a machine for separating two liquids from each other.
Patent GB-1142387-A (GB)
Title: Receiving relays for remote-control installation
IPC: H01H51/32
Filed: 1967-04-26
Abstract: 1,142,387. Electric selective signalling. COMPAGNIE DES COMPTEURS. 26 April, 1967 [26 April, 1966], No. 19139/67. Heading G4H. A circuit responsive to a signal which closes a switch 11 (Fig. 1) for one of two durations includes a thermal relay 20, contacts 21b, 21c and 31b, 31c of which are normally open, the first closing in response to a short duration signal to cause a bi-stable device 14 to close a switch actuating a device 15 and trip a changeover switch 13 to position B and the second closing in response to a longer duration signal to close the switch in device 15 and return switch 13 to the position of Fig. 1. The apparatus may be used for controlling public lighting, water heating units or tariff charging of electric meters, the signals being transmitted by audiofrequency pulses superimposed on the distribution network.
Patent GB-856346-A (GB)
Title: Steam turbine installation
IPC: F01K7/40
Filed: 1957-06-18
Abstract: 856,346. Heating feedwater. SOC. DES FORGES ET ATELIERS DU CREUSOT, and RICARD, P. J. June 18, 1957 [June 30, 1956], No. 19152/57. Class 64(1) Water from the condenser 4 of a steam turbine 1, 3 having a re-superheater 2, is heated in feedwater heaters 5, 6, 7 by steam 8, 9, 10 bled from the turbine and a fraction of the water is divided from the main flow in at least one heater, e.g. heater 5, to pass through a take-off 11 after being heated in a de-superheating portion 5b by the bled steam which then passes as saturated steam to a portion 5a in which the main water flow is heated. The divided fraction is reintroduced to the main water flow at that heater outlet which is at a temperature lower than that of the fraction and which is furthest downstream of the main flow. As shown, the reintroduction is at 12 downstream of the whole heating set but, if the temperature at this point is too high the reintroduction may be at 13 by the outlet of the heater 6. Fractions of the water may similarly be divided from the main flow in the heaters 6 and 7. There are condensed steam outlets 8a, 9a and 10a from the heaters. The divided fraction of water may be sub-divided in the de-superheating portion, Fig. 3 (not shown), one sub-fraction being further heated in the heater or even further divided. The extra streams being returned to the main flow further downstream. If the divided fraction is so hot as to be partly vaporized it is conveyed to the steam generator or to the saturated steam of the first feedwater heater in which the steam is hotter than the divided fraction. Steam enters a feedwater heater, Fig. 5, at 23 and condensate leaves at 24. The water enters a box header at 25 and after passing through the saturated steam portion 21 of the heater, a fraction divides and passes to the de-superheating portion 22 before passing to an outlet 27 adjacent the main outlet 26. In another form, Fig. 6 (not shown), there is one inlet header but separate outlet headers for the main and divided fractions of the water. If the feedwater heater is of the direct contact type, the divided fraction is heated in a separate heat exchanger to which the bled steam is fed before passing to the main heater, Fig. 7 (not shown).
Patent GB-326729-A (GB)
Title: Improvements in and relating to television receiving apparatus
IPC: H04N5/66
Filed: 1929-06-21
Abstract: 326,729. Telehor Akt.-Ges., (Assignees of Mihdly, D. von.). Oct. 2, 1928, [Convention date]. Television.-A television receiving apparatus comprises a linear source of light i, whose rays h are spread out over the picture by means of a cylindrical lens g placed between the tube and the reconstituting device. The linear source of light preferably consists of a tubular glass body a, an anode b, and a cathode d heated by a battery c. The picture currents are applied to the terminals e, f and the tube is filled with gas to give as white a light as possible. The back of the tube i may be silvered or associated with a mirror. À
Patent GB-498237-A (GB)
Title: Improvements in and relating to stamping devices for printing on curved surfaces
IPC: B41F17/18
Filed: 1937-07-09
Abstract: <PICT:0498237/IV/1> <PICT:0498237/IV/2> A hand-stamp, Fig. 1, for printing on curved articles, and a stand, Fig. 4, whereby the stamp is registered on the article, are made of "Bakelite" (Registered Trade Mark).
Patent GB-184975-A (GB)
Title: Improvements in brushes
IPC: A46B13/06
Filed: 1921-07-16
Abstract: 184,975. Cheatham, R. L. July 16, 1921. Brushes, hand-supported, driving by power; self-feeding brushes. - A brush, especially adapted for cleaning automobiles or other vehicles, comprises a circular casing 1 of aluminium or other material having its lower end open and serving as a holder for a rotary waterwheel 6 provided with bristles 7, the wheel being rotated by water projected against blades 15 from a nozzle 18 carried by the handle to the casing. The nozzle is provided with arcuate slots through which pass members 19 fastening it to the handle whereby the water may be directed either toward or away from the blades 15. The end of the nozzle is screw-threaded to receive a coupling-member 17<1> connected to a hose 17. A cleaning-element having bristles 4 is secured to the side of the casing 1 and prevents water from being distributed over too large an area. The casing may be protected by a rubber cover 20.
Patent GB-576017-A (GB)
Title: Improvements relating to fittings for overhead electric traction systems
IPC: B60M1/22
Filed: 1944-10-07
Abstract: 576,017. Supporting conductors. BRITISH INSULATED CABLES, Ltd., LONDON PASSENGER TRANSPORT BOARD, HOLLAND, J., and BROOM, T. C. Oct. 7, 1944, No. 19262. [Class 36] A fitting, for an overhead electric traction system, carried by a span wire, is levelled by a vertically adjustable eye secured to the span wire and carried by a vertical pillar clamped to the support eye of the fitting. A crossing 4 has a support eye 3 to which a pillar 5 is clamped by members 1, 2. In one form, Fig. 1, the pillar carries a sleeve 8 with an adjustable collar 9 having an eye extension 11. In another form, Fig. 3, the members 1, 2 carry arms 21, 22 which support a second pillar 25 on which is secured an adjustable collar which may be secured above or below the crossing.
Patent GB-613717-A (GB)
Title: Apparatus for preparing for example whipped cream
IPC: A47J43/12
Filed: 1946-06-27
Abstract: 613,717. Ice cream freezers. TORON, S. E. June 27, 1946, No. 19271. Convention date, March 5, 1942. [Class 29] [Also in Group II] In an apparatus for whipping cream an electric motor disposed within a hollow base 2, Fig. 1, drives a blower 4 which forces air into a compartment 5 containcrushed ice or freezing mixture and through a finely per forated partition 3 into the whipping vessel 1. The shaft of the motor also drives, through a worm gearing 6, 7, a vertical shaft 8 passing through a tube 9 mounted centrally in the vessel 1, and having its free end downwardly bent to carry a whisk in the form of a wire gauze 13 expanded on a frame 12. An alternative means for mounting and rotating the stirrer is described (see Group II).
Patent GB-1136320-A (GB)
Title: Improvements in or relating to the production of polyvinyl chloride fibres and the like
IPC: D01F6/08
Filed: 1967-04-27
Abstract: 1,136,320. Polyvinyl chloride filaments. PRODUITS CHIMIQUES PECHINEY - SAINT - GOBAIN. 27 April, 1967 [27 April, 1966; 3 March, 1967], No. 19385/67. Heading B5B. Fibres, filaments, thin mouldings, strips and ribbons are produced by bringing a vinyl chloride polymer or copolymer composition directly into the molten state, in the absence of solvents, and then extruding the melt using a rotary plate extrusion apparatus in conjunction with conventional spinning or drawing devices. The polyvinyl chloride may be a high or low temperature product or a copolymer of vinyl chloride with vinyl acetate, or vinylidene chloride or acrylic nitrile or propylene or a chlorinated vinyl chloride. There may also be present in the melts, a polymer of olefinic or acrylic ester type e.g. polypropylene or poly- (methyl methaorylate). The products may have regular cross-sections of trilobate, elliptical, triangular or rectangular shape.
Patent GB-393106-A (GB)
Title: Method of and apparatus for bleaching pulp
IPC: D21C9/10
Filed: 1932-07-08
Abstract: 393,106. Bleaching paper pulp. THORNE, C. B., Hawkesbury, Ontario, Canada. July 8, 1932, No. 19412. Convention date, May 3. [Classes 15 (i) and 15 (ii).] Paper pulp is bleached in two or more stages, in at least one of which lowdensity pulp defined as pulp of a concentration not exceeding 8 per cent, is mixed with a bleaching medium and passed continuously through two chambers, the first chamber constituting an absorption zone and having means whereby the time of absorption may be regulated. As shown, low-density pulp and chlorine gas or chlorine water are supplied to a mixer 3, whence the mixture passes to the bottom of an absorption chamber 5 htted with an agitator 6. The mixture rises up the chamber 5 and overflows into a chamber 5<1> over a weir 12, which is made vertically adjustable in order to control the time of absorption. From the chamber 5<1> the mixture passes to a tank 15, a slowly rotating scraper 7 assisting the removal of the pulp from the chamber ; a constant level in the chamber 5<1> is maintained by a valve 16 operated by a float 17. Caustic soda or other reagent may be supplied through a pipe 21. From the tank 15 the mixture is passed to a washer and thickener 24, whence high-density pulp passes to a mixer 25 in which it is mixed with hypochlorite or other bleaching medium, the mixture gradually descending a tower 27, which may be constructed as described in Specification 264,596, [Class 15 (i), Dyeing &c., Apparatus for]. The passage of the mixture from the tower 27 to a tank 31 is assisted by a scraper 28 and by water or a reagent supplied through a pipe 29. The mixture from the tank 31 passes to a washer 33 and thence to a low-density bleaching system 34 of known construction. For the recovery of chlorine, the gases from the chambers 5, 5<1> and tower 27 are withdrawn through pipes 35, 36 and passed up a packed tower 38 against a circulating current of water supplied by means of a box 42, pump 43, and spray 40. " White water " from papet manufacture may be sprayed down the tower 38 and thus rendered fit for reuse. The apparatus may be modified by the provision of sloping channels instead of the chambers 5, 5<1> and tower 27, and the process may be modified by interchanging the order of the bleaching stages.
Patent GB-128495-A (GB)
Title: Platforms for Use when Adjusting the Compasses of Aircraft.
Inventor: SILK REGINALD ARTHUR
IPC: G01C17/00
Filed: 1918-11-26
Abstract: 128,495. Silk, R. A. Nov. 26, 1918. Turntables.-A rotatable platform for supporting an aeroplane while its compass is being adjusted comprises a main platform A on to which the aeroplane wheels can be run up slopes F, and an extension B on which the aeroplane tail is supported by a trestle. The platform is pivoted at D and supported on rollers C, E running on wood-block tracks. A hole M is provided through which a pin is passed into tubes in the track arranged at the eight principal points of the compass. The trestle is secured in any of the pairs of holes K to accommodate aeroplanes of different lengths. Hinged chock blocks secure the aeroplane wheels. To facilitate the initial adjustment of the aeroplane on the platform, a line is painted on the platform passing through the axes of D. and M.
Patent GB-1172405-A (GB)
Title: Granular Bleaching Composition
IPC: B01J2/28
Filed: 1967-04-28
Abstract: 1,172,405. Bleaching compositions. KAO SOAP CO. Ltd. 28 April, 1967 [2 May, 1966], No. 19632/67. Heading D1P. A granular bleaching composition is produced by heating a solid powdery composition containing sodium perborate and at least one granulating aid which is magnesium sulphate, beryllium sulphate, potassium chloride, potassium nitrate, sugar or sodium borate, while simultaneously agitating it. The composition may contain 10-80% by weight of the sodium perborate and 1-20% by weight of the granulating aid and may be heated for 5-30 minutes at 64-95‹C in a rotary container. The composition may also contain a chelating agent, e.g. ethylene diamine tetracetic acid, sodium silicate, an alkali metal carbonate, a fluorescent dye, a surface active agent, e.g. a sodium alkyl benzene sulphate or a sodium higher alkyl sulphate, sodium tripolyphosphate, sodium pyrophosphate, sodium sulphate and carboxymethyl cellulose.
Patent GB-989815-A (GB)
Title: Improved electrical conductor assembly and method of making same
IPC: H01B13/06
Filed: 1962-05-22
Abstract: 989,815. Cables. L. A. BONDON. May 22, 1962 [May 29, 1961], No. 19715/62. Heading H1A. In an insulated electrical conductor as disclosed in Specification 909,343, formed by laying a number of insulating rods or tubes 14 about a conductor 13 in a tightly packed array, compressed within an outer jacket 12, the tubes are provided along their whole length with transverse notches 15, to minimize the effective dielectric constant of the insulation. The insulating tubes may be of e.g., polyethylene, polytetrafluoroethylene, P.V.C., natural or synthetic rubber, and vinyl polymers and copolymers of which examples are given; they may also be of foamed material such as rubber, polyethylenes and polyurethanes, or of glass fibres impregnated with the above-mentioned synthetic resins which may additionally contain silicone or silicone rubber.