baber/WOPTO huggingface dataset:
Patent GB-487249-A (GB)
Title: Improvements in centrifuges for purifying paper pulp
IPC: B04B11/02
Filed: 1936-12-16
Abstract: 487,249. Centrifugal separators. ERKENSATOR GES. Dec. 16, 1936, No. 34637. Convention date, Feb. 28. [Class 23] A centrifuge for purifying paper pulp is provided with a skimming pipe which can be moved radially to discharge the light impurities periodically. The pulp is treated in the rotary drum 1 and the light impurities collect in the annular hood 3 from which they are removed by the skimming pipe 4 suspended by guide rods 5 from a support 6 so that its position can be vertically adjusted by the hand-screw 8. The degree of immersion of the pipe 4 is controlled by a spring 9, and a float 10 at the end of the pipe ; excessive immersion is prevented by the screw 11. In the form shown, the periodic movement of the skimming pipe is obtained by hydraulic operation, but it may be obtained by mechanical or electromagnetic operation. A pin 29 is attached to a membrane 28 which closes the chamber 27 supplied with pressure fluid through the pipe 26. This supply is controlled by a plunger 24 attached to the pivoted container 20. With the parts arranged as shown in Fig. 1, the pressure fluid passes from the pipe 12 through the pipe 19 to the container. Eventually, the container tips and raises the plunger 24 to cut off the supply to the container, and to start the supply. through the pipes 25, 26 to the chamber 27. This moves the membrane 28 and the pin 29 to withdraw the skimming pipe from the material in the hood 3. Meanwhile the liquid leaves the container by the nozzle 22 and the counterweight 23 restores the container to its original position. The plunger 24 is moved downwards and the pin 29 allows the end of the tube 4 to enter the material again so that the operations can be repeated.
Patent GB-1072181-A (GB)
Title: Apparatus for forming curled rims on plastic articles
IPC: B29C57/12
Filed: 1964-08-25
Abstract: 1,072,181. Forming rims on containers. BROWN MACHINE CO. OF MICHIGAN Inc. Aug. 25, 1964 [Aug. 30, 1964], No. 34716/64. Heading B5A. [Also in Division B6] Curled rims are formed on hollow thermoplastic containers C by the sequential operation of a first grooved roller 113 and then a second grooved roller 114, the groove of roller 113 being larger than that of 114 so that the rim is first preformed (see Fig. 11, not shown), and then curled to its final shape (see Fig. 12, not shown). The containers are deposited one by one, on to a rotating table A, from two unstacking devices P 1  (not shown) and P 2 . The rims of the containers may be heated at this stage by suitably positioned rods (see Fig. 3, not shown). The containers are then guided by curved wires 49, 50, along a fixed table 48 to a position overlying porous mandrels M, carried by plates (58) fixed to a second rotatable table (51), and are transferred, by transfer mechanisms T, one of which is located above every mandrel, to the mandrels and retained thereon by suction. Each of the mandrels is itself rotated and is carried by table (51) to a position in which the rims rotate between electrical heating rods, extending around part of the circumference of the table (51). The thus heated rims are then formed by roller 113 and then [roller 114, the operation of said rollers being controlled by suitable cam mechanisms. The formed containers are then carried by table (51) to a position below a delivery tube, up which they are blown by a blast of air issuing through ducts in the mandrel.
Patent GB-325030-A (GB)
Title: Improvements in vacuum electric tube devices
IPC: H01J1/20
Filed: 1928-11-26
Abstract: 325,030. Robinson, E. Y., and Associated Electrical Industries, Ltd. Nov. 26, 1928. Vacuum tubes.-An indirectly heated cathode for an electric discharge device consists of a heater supported within and by a tube or sheath of refractory insulating-material, such as porcelain or quartz, the heater being surrounded but not touched by a cathode tube. In one form, Fig. 1, a carbon hair pin heater 2 passes through longitudinal holes in an insulator 1 of flattened cross section. The insulator is gripped by a metal band 3 carried by a support 5 from the pinch 6, a second band 4 on the support 5 slidably engaging the upper end of the insulator. A nickel cathode tube 7, coated with emissive material and of shorter length and greater internal diameter than the insulator, is carried by one or more wires 8 mounted in the pinch. When the heater is formed as a spiral, a central hole is formed in the insulator and the heater is connected by welding to two lead-in wires or, in the case, of carbon, by mechanical means and cement. As shown in Figs. 2 and 3, the insulator 9, enclosing a heater filament 10, is gripped by a nickel tube 11 having a tongue 12 which is welded to a support wire 13 secured in the pinch 14, the free ends 15 of the filament being connected to lead-in wires 16. Surrounding, but spaced away from, the tube 11 is the cathode tube 17 supported by wires 18. Supporting-wires 19, 20 are provided for the anode and grid. To prevent electron emission between the two tubes, their interior and exterior may be coated with a material such as chromium oxide or the tube 11 may be constructed of a chromium alloy. The inner tube 11 may be connected to one end of the heater wire or may serve as the return lead for the heater. The heater may be coated with insulating material in the manner described in Specification 278,787. Specification 297,966 also is referred to.
Patent GB-411046-A (GB)
Title: Improvements in or relating to non-reflecting shop fronts
IPC: A47F11/08
Filed: 1933-12-11
Abstract: 411,046. Reducing reflection in showcases. BROWN, G., 3, Suffolk Road, Barnes, and POLLARD, E., 159, St. John Street, both in London. Dec. 11, 1933, Nos. 34832, 34958, and 35992. [Class 52 (i).] In a showcase having a curved sheet 8 of glass in conjunction with a light-absorbing or low-luminosity surface 4 for reducing or nullifying undesired reflection, end panels 5 corresponding to the area between the curved pane and the front and the case are formed of mirror glass, polished metal or other image reflecting material. The curve pane 8 may extend only as far as the bottom shelf 9 which is extended as a continuation of the curve and is made reflecting over its curved portion. The side panels 5 may be coloured so that the articles displayed exhibit a tinted appearance. In an alternative construction the side panels may be surfaces of double curvature formed by the revolution of the curve of the pane 8 about a vertical axis.
Patent GB-1381676-A (GB)
Title: Method of producing phosphate catalyst
IPC: B01J37/28
Filed: 1972-07-27
Abstract: 1381676 Phosphate catalyst VSESOJUZNY NAUCHNO - ISSLEDOVATELSKY INSTITUT NEFTEKHIMICHESKIKH PROTSESSOV 27 July 1972 35123/72 Heading C1A [Also in Division C5] A phosphate catalyst is prepared by heating a Group II tertiary metal phosphate having a MeO : P 2 O 5  molar ratio of not less than 2À95 to a temperature within the range from 550‹ to 700‹ C. with a gaseous heat carrier (e.g. superheated steam or a mixture of steam with air or an inert gas) wherein Me is a Group II metal. The tertiary metal phosphate may be of granular form and may be prepared by reacting an aqueous solution of a Group II metal salt with a water soluble salt of phosphoric acid at a pH not lower than 9. The phosphate catalyst may be used to split 4,4-dimethyl-1,3-dioxane into isoprene.
Patent GB-1307270-A (GB)
Title: Electronic musical instrument having a unified keying circuit
IPC: G10H1/057
Filed: 1970-11-30
Abstract: 1307270 Electrophonic musical instruments CHICAGO MUSICAL INSTRUMENT CO 30 Nov 1970 [25 June 1970] 35230/71 Divided out of 1307269 Heading G5J An electrophonic musical instrument comprising a series of audio signal sources 12,  voicing or formant circuits 13 and transducer 15 is provided with a unified D.C. keying circuit (matrix) 16 connected between the sources and voicing circuits under the control of key switches 11 and voice tab switches 17 and incorporating a percussion circuit 19 and detector 21 such that a single formant circuit is employed for continuous tones and for percussive-envelope tones. A repeat circuit 22 is also connected to the matrix and is controlled by repeat switches combined with the percussion switches 20 and control tabs 25. Presets 18 are provided to operate in lieu of or together with switches 17. Sustain keyers 23 under the control of tabs 24 are provided for each of key switches 11. With sustain keyers 23 closed, the switches 11 are in direct connection to the matrix 16 as indicated in Fig. 2 showing a portion of the instrument. Detailed descriptions of the circuits are included.
Patent GB-282815-A (GB)
Title: Process for manufacturing devices provided with a layer of oxide and conducting electric current in one direction only
IPC: H01L21/16
Filed: 1927-12-29
Abstract: 282,815. Siemens - Schuckertwerke Akt.-Ges., (Assignees of Siemens-Schuckertwerke Ges.). Dec. 31, 1926, [Convention date]. Coating.-Relates to rectifiers of the metallic oxide type such as copper-oxide rectifiers, and consists in forming the oxide coating on the metal by heating the latter in an oxygen-containing atmosphere in which the partial oxygen pressure is reduced, as compared with air at normal pressure, to an amount which does not exceed the dissociation pressure of the oxide at the reaction temperature. This enables the desired oxide coating to be formed at temperatures considerably below the melting-point of the metal, thus avoiding the formation of undesired products of oxidation.
Patent GB-897205-A (GB)
Title: Precipitated calcium carbonate
Inventor: FAUST ROY CLAUDE
IPC: C01F11/18
Filed: 1959-10-19
Abstract: Precipitated calcium carbonate suitable as a rubber filler is produced by carbonation of milk of lime with a CO2-containing gas in two stages, in the first of which the carbon dioxide is at a partial pressure of 0,2 atmospheres or less and in the second at a higher concentration.  When a gas flow of 2 to 3 litres/minute per litre of a milk of lime containing 80 gm./litre of CaO is used, the preferred partial pressure of CO2 in the first stage is in the range 0,10 to 0,20 atmospheres, whilst in the second stage it is between 0,40 and 1,0 atmospheres.  A suitable temperature for the milk of lime at the start of the carbonation is 20 to 25 DEG  C.  Examples illustrate the improved dispersibility in a rubber mix of the CaCO3 produced by the two-stage carbonation over CaCO3 produced by one-stage carbonation, the addition of stearic acid and of calcium stearate being discussed. Specification 562,544 is referred to.
Patent GB-1168414-A (GB)
Title: Data Processing Systems
Inventor: ARULPRAGASAM JEGANANDARAJ AMAL
IPC: G06F11/14
Filed: 1968-07-25
Abstract: 1,168,414. Data processing. INTERNATIONAL BUSINESS MACHINES CORP. 25 July, 1968, No. 35457/68. Heading G4A. In a data processing system, recovery log storage is connected via a recovery log buffer to predetermined data locations in a C.P.U. (central processing unit) for recording data therefrom, and is updated after predetermined intervals but only after error checking circuitry in the C.P.U. has indicated error-free data flow in the C.P.U. during the current interval. The output of main storage goes via error-correcting circuitry to both the C.P.U. and a main storage buffer (which holds the 7 latest items from main storage and their addresses). Instruction fetch and execution cycles occur alternately. Changes in various C.P.U. registers during execution cycles are followed by a recovery log buffer the contents of which are passed to the recovery log storage during the respective following fetch cycles except that detection of an error in the C.P.U. during an execution cycle freezes the recovery log buffer, recovery log storage and main storage buffer to permit subsequent resumption of the programme or instruction retry without data loss. The recovery log buffer may be an associative store holding only the new contents of the portions of the C.P.U. registers which have actually changed, together with tags identifying the register portions. The recovery log arrangements, including the main storage buffer, have a separate power supply. Changes in the C.P.U. during fetch cycles may be stored in the recovery log storage during execution cycles.
Patent GB-1097910-A (GB)
Title: Improvements in hand-applied drilling and like rotary tool devices
IPC: H02K7/14
Filed: 1966-08-09
Abstract: 1,097,910. Portable drilling machines. ROBERT BOSCH G.m.b.H. Aug. 9, 1966 [Aug. 20, 1965], No. 35569/66. Heading B3C. A portable drilling or like machine comprises a housing of plastics material formed in two substantially symmetrical shell portions 1, Figs 1 and 2 a metal bearing block 10 detachably secured to one shell portion by screws 11a, 11b, the block having parallel bores 12, 18 for suping the bearings 17, 14 of the tool spindle 4, and electric motor shaft 15 respectively. The end 26 of motor shaft 15 is located in a sintered bearing 27, sealed in a body 28 of rubber-like material, and two brush-holders 33, 34 are releasably secured to lugs 30 by screws. The arrangement is such that the block 10 takes the separating force produced by gears 5, 6 and the drill can be run for testing purposes with only one shell portion 1.
Patent GB-1398968-A (GB)
Title: Closed loop engine control system
IPC: F02D41/14
Filed: 1973-07-26
Abstract: 1398968 Automatic control of exhaust gases BENDIX CORP 26 July 1973 [18 Sept 1972] 35664/73 Addition to 1397502 Heading G3R The fuel control system of the parent Specification 1397502 is modified in that an oscillator is connected to the comparator so that its output is added to that of the exhaust gas sensor and the set point signal. The object is to enable a large system gain to be used with consequent rapid response but without the hunting which is liable to occur as a result. The amplitude of the oscillations is less than that normally produced as an error signal by the sensor and their frequency is slightly above the band pass frequency of the system, preferably equal to the fuel injection frequency. The oscillator may have a sinusoidal or triangular output, but preferably it is squarewave from a multi-vibrator triggered by the signals which control the injector.
Patent GB-1441818-A (GB)
Title: Tries ltd linear motor electromagnetic rails
IPC: B60L13/03
Filed: 1973-07-27
Abstract: 1441818 Electromagnetic systems JAPANESE NATIONAL RAILWAYS SUMITOMO ELECTRIC INDUSTRIES Ltd and FURUKAWA ELECTRIC CO Ltd 27 July 1973 [27 July 1972 25 Aug 1972 (3) 2 Sept 1972 (5) 22 Sept 1972 (2)] 35992/73 Heading B7L Also in Division H2] In a thyriator controlled linear motor, the rail comprises a plurality of undulating coil inductors surrounded by a moulded body of insulating material the whole being fixed to a support which is anchored to the ground. One such coil conductor 1a is shown in Fig. 2 between the poles of the field structure 16 which is arranged to provide a driving force as well as a levitating force. As shown in Fig. 5 four such conductors are arranged embedded in epoxy or polyester resin 2 and surrounded by a protective layer 3 of fibre reinforced plastics. This unitary structure is bolted to an aluminium of stainless-steel support 4 which is itself anchored to the guideway 7 by bolts 6. The vehicle carries a field yoke 16 having an energizing coil. One or two straight conductors (18, Figs. 8-9, not shown) may be provided between the field poles to provide extra levitational force. Short circuited windings (14, Fig. 5, not shown) may be provided between the undulations which at high speed produce induced currents and if the armature coil current fails provide a levitational force to "let down" the vehicle slowly, as well as providing a braking force to bring the vehicle to rest. To remove the need for return path conductors to the supply pairs of conductors are joined together at the track section end and further each one of the pair lies between the poles of two field structures (constructed as a single unit). This equalizes unbalanced forces which tend to cause rotational moments about the machine longitudinal axis, thus improving stability (Figs. 13-15, not shown). The support 4 preferably takes the form shown in Fig. 24 where the moulded rail structure 42 is clamped between upstanding flanges 45 on a hollow box support 43. The box houses the terminals 47 for electrical connection to adjacent lengths of track as well as cooling pipes and power cables. To decrease the width of the rail, pairs of conductors separated longitudinally by one-half pole pitch are mounted together, the vertical portions thereof being reduced to one-half thickness and doubled in longitudinal width to retain the same cross-sectional area. The two conductors are separated at the vertical portions by insulators and interlock to fill only the width of a single conductor (Fig. 19b, not shown). Comb-like strips of metal integral with the undulations or welded or riveted thereto are used to conduct away heat (Figs. 19-20) generated when the conductors are energized.
Patent GB-1128423-A (GB)
Title: Improvements in and relating to hydraulic copying lathes
Inventor: HAMANN EWALD
IPC: B23Q35/18
Filed: 1966-08-11
Abstract: 1,128,423. Copying. WERKZEUGMASCHINENFABRIK MAGDEBURG VEB. 11  Aug., 1966, No.36023/66. Heading B3T. In a copying lathe in which the tool slide 1, 3 is controlled hydraulically from a tracer 18 on the slide which co-operates with a template 19, the tracer actuates a spool valve 16 which controls the flow of hydraulic fluid to pistons 7 and 8 respectively located on each side of an abutment member 20 on the slide part 1. The pressure difference between the respective pistons producing movement of the tool slide part 3 carrying the tool 26 by engagement by the pistons with the abutment member 20 to move the slide and tool towards or away from the workpiece 27.
Patent GB-307008-A (GB)
Title: Improvements in or relating to electric driving arrangements
IPC: F16H57/02
Filed: 1928-12-08
Abstract: 307,008. Luth & RosÚns Elektriska Aktiebolag, (Assignees of Uggla, W. R.). March 1, 1928, [Convention date]. Driving-arrangements.-A driving-arrangement specially for looms comprises an electric motor and toothed gearing, the outgoing shaft 13 being formed as a sleeve adapted to be connected directly to the loom shaft 18 and to carry the combined motor and toothed gearing, while the casing of the motor is resiliently mounted on an upright. The driving-shaft 8 of the motor is loosely mounted in the rotor 6 and has a friction surface 10 held by adjustable spring pressure against the rotor. The device is provided with a casing having a lug 1 adapted to pass over an upright 3 and be held between rubber or other resilient rings. The sleeve 13 is mounted on ball bearings and may be formed with a toothed rim 15 for gearing with a pinion 14 on the shaft 8. When it is desired to drive the loom at a different speed, the rim 15 of the sleeve 13 is made detachable and is replaced together with the pinion 14 by others. The devices are made knee-shaped to allow an adjacent loom to be driven by a similar device as shown in dotted lines.
Patent GB-335119-A (GB)
Title: Improvements in or relating to multi-spindle turret lathes
IPC: B23B9/08
Filed: 1929-11-27
Abstract: 335,119. Sch³tte, A. H. Aug. 29, 1929, [Convention date]. Lathes.-A multi-spindle turret lathe is provided with a toothed ring 8 rotatably mounted on the work turret 3 and engaging with pinions 11 which are carried by shafts 10 and are connected through one-way clutches 12 to sleeves carrying cams 19 acting through levers 22 to effect movements of the cross slides 6, 7. The ring 8 is rotated alternately in opposite directions by a shaft 9, the cam sleeves being held stationary on the reverse movements by means of ratchet wheels 17 coacting with fixed pawls 18. The cams 19 may be replaced by a grooved cam disc or by a helical cam arranged to move the cross slides positively in both directions.
Patent GB-1351004-A (GB)
Title: Fluid pressure brake mechanisms
IPC: F16L9/18
Filed: 1971-08-03
Abstract: 1351004 Internally ducted body COMPAGNIA ITALIANA WESTINGHOUSE FRENI E SEGNALI 3 Aug 1971 [27 Oct 1970] 36363/71 Heading F2P A body having internal fluid ducts, for use in compressed air braking systems, e.g. on a railway vehicle, comprises two separate members 101, 102 with co-operating faces having therein at least one groove or channel 11-15, 16-20 in each face and registered with each other to form the fluid ducts. The members 101, 102 comprise plates, as shown, which are bolted together. The co-operating faces are sealed, for example by adhesive, in a fluid-tight manner and the plates may be secured together solely by adhesive without the use of bolts. Valve units 27, 28, 29 may be bolted on to the plates and communicate with the ducts through apertures such as 30, 32 in each plate to control interconnection of the ducts and to communicate with the atmosphere through an aperture 35, a pair of registered grooves 36, 37 in the plates, and an aperture 38 in the plate 101. In another embodiment the valve units are housed in recesses formed in a further pair of plates (39, 40) (Fig. 4, not shown) bolted on either side of the plates 101, 102. In a further arrangement the valve recesses are formed in the plates 101, 102, which are made thicker, in the outside surfaces. The recesses are closed by plates (42, 44) (Fig. 5, not shown) screwed or bolted to the plates 101, 102. In a further embodiment, the valve units are omitted and a single groove is provided in each plate (1, 2) (Figs. 1, 2, not shown). Apertures (9, 10) connect the grooves to the atmosphere. The plates in the embodiments may be curved, angular or of other shape.
Patent GB-854833-A (GB)
Title: Improvements in or relating to spring clips and cover plate assemblies for road vehicle wheels
IPC: B60B7/10
Filed: 1957-11-22
Abstract: 854,833. Wheel-cover discs. WARD, K. F. Nov. 12, 1958 [Nov. 22, 1957], No. 36396/57. Class 144 (1). [Also in Group XXV] In a spring clip for attaching a cover plate to the wheel rim of a road vehicle wheel the clip is formed to a substantially U-shaped configuration to provide two limbs 21, 22 joined by a centre portion 23, there being provided at least one tooth 27 which projects into the interior of the clip and which is directed towards the centre portion together with at least one tooth 30, which is provided on the outermost free edge of the in situ radially outer limb 21 so as to project outwardly of the clip and extend in a direction away from the centre portion. The clip is adapted to be pushed on to the inboard edge marginal portion of an annular mounting member of the cover plate until the centre portion 23 abuts the inboard edge and in this position the inner limb 22 lies against the radially inner face of the mounting member while the outer limb 21 lies adjacent the radially outermost face of the mounting member and outwardly of the wheel. The inner limb 22 is formed with a single corrugation 24 to strengthen the clip and the outermost limb 21 and the centre portion 23 is divided at two places 25 to form three arms. The end arms 26 are each formed with one of the teeth 27, the teeth being pointed and each point being directed radially inwardly from the arm and towards the centre portion so that it resists any force tending to remove the clip from the mounting member. The central arm 28 is of arcuate formation in cross-section and is adapted to engage the wheel rim. It is provided with four of said teeth 30 spaced apart longitudinally and these teeth are flat edged so as to resist withdrawal of the cover plate from the wheel rim. Eight clips are normally used spaced equidistantly round the periphery of the mounting member to support the cover plate on the wheel.