baber/WOPTO huggingface dataset:
Patent GB-1462343-A (GB)
Title: Process for truing a diamond grinding wheel utilizing a molybdenum tool
IPC: B24B53/00
Filed: 1975-09-08
Abstract: 1462343 Trueing grinding wheels I T KISH 8 Sept 1975 36814/75 Heading B3D A process for trueing a resin bonded diamond grinding wheel comprises rotating the wheel about an axis extending substantially normal to the plane of the wheel, and simultaneously holding a molybdenum tool in frictional contact with the peripheral work surface of the wheel while it rotates. The wheel 1, Fig. 2, may be mounted on a spindle 2 of a dressing machine or, preferably, the work spindle of a grinding machine, the bed 4 of the machine supporting a fixture 10 having a head 12 which is oscillatable about an axis 15 and carries an arm 16 in which is mounted a sleeve 18 for a tool bar 8 of molybdenum having a flat tip portion 20 for producing an arcuate contour on the wheel during oscillation of the head. In another embodiment, the tool is in the form of a rotatable disc 24, Fig. 4, carried by a spindle 26 in a jig 28 movable relative to the wheel 36 to form a cylindrical profile thereon. The tool comprises molybdenum of at least 95% purity and may be in the form of a bar with a pointed tip or a flat plate. Various profiles may be formed on the wheel.
Patent GB-931548-A (GB)
Title: Improvements in and relating to synchronous motors and their excitation apparatus
Inventor: RAVEN JOHN MOELWYN
IPC: H02K19/12
Filed: 1958-11-17
Abstract: 931,548. Control of A.C. motors. BRUSH ELECTRICAL ENGINEERING CO. Ltd. Nov. 25, 1959 [Nov. 17, 1958], No. 36942/58. Class 38 (3). [Also in Group XXXV] In a synchronous motor 1, Fig. 1, combined with apparatus for supplying and controlling its excitation current I 3 , the apparatus comprises an air-gapped transformer 3 whose primary winding carries the motor load current I 1  and whose secondary winding is connected through the input of a rectifier 4 to a voltage source which is substantially fixed in magnitude and phase relative to the motor supply voltage V 1 , the output of the rectifier is connected to the motor field winding, and in order to render the excitation current I 3  reasonably independent of thermal variations of field winding resistance the apparatus is so proportioned that the transformer secondary winding reactance #L 2  is at least about three times the combined resistance of the rectifier and field winding as measured at the rectifier input. The apparatus may be single- or multiphase, and the source may be obtained from the supply voltage V 1  via a phase-shifting transformer 2 or, Fig. 9, from tappings a ... c on the motor A.C. windings 13 in which embodiment the source is phase-shifted by a suitable interconnection of the phases of the transformer split primary winding or secondary winding 6, 10. In the Provisional Specification a rotating exciter or transductor may be interposed between the rectifier and the field winding, and an over-riding control may be provided by saturating windings on the air-gapped transformer.
Patent GB-946740-A (GB)
Title: A check valve for flowing media
Inventor: KEMENCZKY MIKLOS
IPC: B63H11/00
Filed: 1960-09-12
Abstract: 946,740. Regulating fluid flow. KEMENCZKY ESTABLISHMENT. Sept. 12, 1960, No. 37144/62. Divided out of 946, 739. Heading G3H. [Also in Divisions B7 and F2] A check valve for flowing media, e.g. disposed in the thrust tube of a watercraft jet propulsion apparatus (see Division B7), comprises a hub 121 which is freely rotatable on a shaft 122 and which carries blades 119 pivotally mounted on shafts 120. Water entering the thrust tube 2 causes the blades to pivot to the position shown in Fig. 10 and allow the water to pass through the valve, at the same time causing it to rotate. The water is prevented from flowing back, on a pressure buildup behind the valve, by the blades pivoting back to form an annular disc against the supporting edge 25. The front edges of the blades 119 may be sharpened to cut up any foreign matter which enters the thrust tube. The valve may also be used in conduits and pumps for liquids, vapours or gases and in mining ventilation apparatus.
Patent GB-777798-A (GB)
Title: Improvements in fuel feed systems for internal combustion engines including a damperfor braking at least a portion of the displacements of a movable part
Inventor: MENNESSON ANDRE LOUIS
IPC: F02M19/12
Filed: 1955-12-29
Abstract: 777,798. Regulating. SOLEX. Dec. 29, 1955 [Jan. 26, 1955], No. 37302/55. Class 7 (6). [Also in Group XXXII] In a fuel feed system foi an internal combustion engine, including a damper 6 to brake at least a portion of the displacements of a movable part, the braking fluid of the damper belongs to the silicone group. As shown, an adjustable abutment 12 carried by operating linkage 3, 4 of a carburetter throttle valve 2, comes intc engagement with the pistor rod 10 of the damper 6 towards the end of closing movement of the valve 2. Further movement is damped by resistance to the damper piston 7 by the fluid, a valve 9 closing to restrict flow. Upward piston movement to a limit stop 14 due to a return spring 8, is more rapid since the valve 9 then opens.
Patent GB-1368589-A (GB)
Title: Pauling type detector having a solid test body
IPC: G01N27/74
Filed: 1973-08-07
Abstract: 1368589 Magnetic gas analyzer BECKMAN INSTRUMENTS Inc 7 Aug 1973 [7 Aug 1972] 37309/73 Heading G1N In a magnetic gas detector of the rotatable vane type with electromagnetic restoring force, the vane comprises a flat strip 30 of a diamagnetic ceramic e.g. alumina or beryllia, with projecting end pieces shaped as shown. A conductive layer 35 of e.g. titanium is secured on the upper face of the vane with etched channels 41, 42 leaving a conductive loop round the outer edge for electromagnetic restoring and patches 45, 46 for eddy-current damping.
Patent GB-1192965-A (GB)
Title: Improvements in Fluidics
Inventor: TILEY DAVID TERENCE
IPC: F15C1/16
Filed: 1967-08-15
Abstract: 1,192,965. Pure fluid-flow regulators. ROLLS ROYCE Ltd. Aug. 15, 1968 [Aug. 15, 1967], No. 37355/67. Heading G3H. A fluid-flow regulator which maintains a linear relationship between the pressure in line 10 and the flow from outlet 16, comprises a vortex amplifier 15 receiving a primary feed 13 via arifice 12, and a control feed 17 the pressure of which is determined by the degree of aspiration applied to chamber 30 (Fig. 7) of a device 18 by the suction arifice 27 (Fig. 10) of an ejector 19. Device 18 comprises a pressure jet 24 fed directly from line 10 and an aligned receiver 25 which provides the control feed 17. Ejector inlet 26 is also fed directly from line 10, its outlet 33 is connected to line 11 downstream of the amplifier and its suction arifice 27 is connected to part 28 of device 18. The Specification describes in detail the operating characteristics of the regulator and its components.
Patent GB-1082249-A (GB)
Title: Improvements in flame curtain burners
Inventor: FAIRBANK LAURENCE HAYDN
IPC: F23D14/10
Filed: 1963-09-23
Abstract: 1,082,249. Gas burners. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Sept. 22, 1964 [Sept. 23, 1963], No. 37373/63. Heading F4T. A gas burner comprises a gas distribution tube 3 disposed inside a tubular casing 1 and having gas exit openings a, b, c which are either non-uniformly spaced apart or varying in cross-section or both. The exit openings a, b, c are arranged on the side of the distribution tube remote from a gas outlet slot 2 of greater depth than width in the tubular casing 1. Gas may be supplied at one or both ends of the distribution tube.
Patent GB-1206989-A (GB)
Title: Improvements in or relating to continuous presses
Inventor: BAJAK KAREL
IPC: C14B1/30
Filed: 1968-08-06
Abstract: 1,206,989. Pressing leather. STROJOSVIT, NARODNI PODNIK. Aug.6, 1968 [Aug. 7, 1967], No.37406/68. Heading C6C. Leather is pressed, while being fed continuously by endless belts 5, 7 over an arcuate supporting surface of a support 3, by a driven roller 9 supported in vertically sliding journals 8 acted on by a hydraulic ram 10. The belt 5 is driven by a motor 13 via roller 4 and the belt 7 is driven by motor 13 via roller 6, the leather being supported either on the belt 7 or between the two belts. In the former case, a patterned surface may be produced on the hide by suitably forming the surface of the cylinder. The cylinder may comprise means for heating it, and is driven by the motor 13 which drives the belts.
Patent GB-1019595-A (GB)
Title: Improvements in or relating to machines for automatically scraping pigs after they have been bled
IPC: A22B5/08
Filed: 1962-10-02
Abstract: 1,019,595. Scraping carcases. P. AMBILL. Oct. 2, 1962 [Oct. 4, 1961], No. 37424/62. Heading A2V. In an automatic machine for scraping pig carcases, pigs are suspended head downwards by carriages 26 moving along a track 25 and, by means of a half conical end plate 29 are progressively inclined to the vertical and brought into the position shown in Fig. 2 for scraping by vertically moving blades 17. Rotary pinions 27 on the carriages 26 mesh with a stationary rack 28 so that each carcase is turned as it travels along and is scraped on all sides. The pigs pass from a first group A of upwardly moving scrapers to a second group B of downwardly moving scrapers. A further semi-concal plate 30 then allows the pigs to slowly resume a vertical position after scraping. Each blade 17 is secured, e.g. by rivets, to a flexible block supported by and bolted to a leaf spring (Fig. 4, not shown), the bolt connecting the assembly to a cross-bar 13 extending between and secured to chains C passing around toothed pinions 11, 12 on the ends of longitudinal shafts 7, 8 and 9, 10. By means of further pinions 20, 24 and chains, a motor 19 drives the shafts 7, 10; the drive to shaft 10 being through a reversing gear 22. The drive mechanism may be located at one side of the assembly A-B if desired. Protection barriers and casings 31, 32, 33 for the machine and operators are provided.
Patent GB-1358669-A (GB)
Title: Imidazolidines processes for their preparation and their use for repelling birds
IPC: C07D233/46
Filed: 1972-08-11
Abstract: 1358669 1-Phenyl-2-imino-imidazolidines BAYER AG 11 Aug 1972 [12 Aug 1971] 37565/72 Heading C2C 1-Phenyl-2-imino-imidazolidines of the general formula wherein Hal is halogen; R is H, halogen, C 1-4  alkyl, C 1-4  alkoxy or C 1-4  haloalkyl; R<SP>1</SP> and R<SP>11</SP>, which are the same or different, are H or C 1-6  alkyl and n is an integer of 1 to 4, or salts thereof, are prepared (a) by treating a phenyl-ethylenediamine of a general formula with a cyanogen halide and liberating the base from the salt if required, or (b) by reacting a cyclic isothiuronium salt of general formula where A- is the anion of an acid with a compound R<SP>1</SP>NH 2 , or (c) cyclizing an N-(phenylaminoethyl)-thiourea of general formula with a heavy metal oxide or salt, or (d) heating an isothiuronium salt of general formula where A- is the anion of an acid, to a temperature above 50 C. for a prolonged period of time, the base obtained being converted, if required, into a salt by reaction with the appropriate acid. Amongst numerous examples of compounds of Formula I is 1-(4<SP>1</SP>,5<SP>1</SP>-dichloro-2<SP>1</SP>-methyl phenyl)- 2-imino-imidazolidine hydrobromide. N-(Halophenyl)-aminoacetonitriles are obtained from halo-aminobenzenes, KCN and paraformaldehyde with subsequent heating. N-(Halophenyl)ethylenediamines are obtained by hydrogenating the N-(halophenyl)-aminoacetonitriles. 1-(Halophenyl)imidazolidine-2-thiones are prepared by reacting N-(halophenyl)-ethylenediamines with CS 2 . 1-(Halophenyl)-2-methylmercapto-2-imidazolinium iodides are obtained from the above thiones by treatment with methyl iodide. Bird repellant compositions comprise compounds of general Formula I in admixture with solid or liquefied gaseous diluents or with liquid diluents containing a surface active agent.
Patent GB-1424141-A (GB)
Title: Digital electronic timepiece
IPC: G09F9/302
Filed: 1973-08-09
Abstract: 1424141 Electronic watches SUWA  SEIKOSHA KK 9 Aug 1973 [11 Aug 1972] 37734/73 Heading G3T [Also in Division G5] An electronic timepiece has numeric characters 10 which indicate seconds and which differ in size and/or style from numeric characters 8, 9 indicating hours and minutes. As shown the display comprises further characters 7 showing the date. Each character is formed of l.e.d. or liquid crystal segments 16.
Patent GB-924690-A (GB)
Title: Improved pyrotechnic device
Inventor: SCHERMULY ALFRED JAMES
IPC: F42B12/68
Filed: 1960-11-03
Abstract: 924,690. Pyrotechnic rockets. SCHERMULY PISTOL ROCKET APPARATUS Ltd. Nov. 3, 1961 [Nov. 3, 1960], No. 37788/60. Class 9 (2). A rocket is provided containing radar reflecting material 19 as in Specification 819,233 and is fired from a discharger, described in Specification 823,391, having a spigot 8 formed from a rectangular section rod helically twisted along its length, which rod extends into an axial passage in the propellant 15. According to the invention, the rocket is closed by a choke plate 10 having a central orifice 16, whose cross-sectional shape is similar to that of the spigot 8, and symmetrically placed through passages 18 inclined to the longitudinal axis of the rocket, so that when the rocket is discharged the propellant gases emerging through the passages 18 give a rotational thrust to the rocket. The propellant 15 may be a gunpowder composition containing guanidine nitrate.
Patent GB-1122058-A (GB)
Title: Support for a child carrying unit including a carriage body, a chair or the like
IPC: B62B7/14
Filed: 1965-09-04
Abstract: 1,122,058. Baby carriages. L. GOTTFREID and J. BERGER. 4 Sept., 1965, No. 37888/65. Heading B7B. A perambulator body 2 has a frame 8 on its underside to engage between the side members 4<SP>1</SP>, 5<SP>1</SP> and transverse members 6 of an intermediate unit 1 and to be retained there by latches 9. The unit 1 has transversely extending slide portions 4<SP>4</SP>, 5<SP>4</SP> which slidably engage in channels 15 on the wheeled undercarriage 3. The side members 4<SP>1</SP>, 5<SP>1</SP> are provided with apertures 21, 22 to accommodate two chain units which may face in either direction.
Patent GB-1220630-A (GB)
Title: Improvements in electron guns
Inventor: WINSOR DONALD LEE
IPC: H01J37/063
Filed: 1968-08-08
Abstract: 1,220,630. Arc-erosion. RAYTHEON CO. 8 Aug., 1968 [23 Aug., 1967], No. 37977/68. Heading B3V. [Also in Division H1] A pair of identical, parallel, grid electrodes for the electron gun of a discharge tube (see Division H1) are manufactured by arc erosion, using a carbon composition tool 122 axially movable towards a pair of pre-formed molybdenum grid blanks 104 and 106 which are spaced apart by a ceramic spacer 117. Oil is provided between the tool and the blanks, radially extending apertures being eroded successively in blanks 104 and 106 as the tool is moved downwards.
Patent GB-381058-A (GB)
Abstract: 381,058. Kinematograph picture films. DEBRIE, A. L. V. C., 111, Rue St-Maur, Paris. Feb. 4, 1932, No. 3354. [Classes 98 (i) and 98 (ii).] Relates to apparatus for printing, titles, textmatter, &c. by projection from a film 7, having title sections interspaced with clear sections which are fed into the gate 12 when a picture section of the picture negative 3 is being printed by contact printing on to a positive film 4 at the printing gate 2. In order to avoid reproducing scratches or other imperfections on the clear sections of the film 7 when a picture section of the negative is being printed, the image of these clear sections are thrown out of focus by a relative displacement of the three elements film 7, lens 8, and films 3, 4 without modifying the path of the light beam. In the construction shown the gate 12 and feed channel 11 for the title film 7 is rocked to an oblique position, as by an eccentric 16 on the shaft of a pinion 15 meshing with a pinion 14 on the sprocket feed wheel 13.
Patent GB-1061012-A (GB)
Title: Improvements in packaging
Inventor: WEBSTER JAMES
IPC: B65B5/04
Filed: 1962-07-04
Abstract: 1,061,012. Feeding sheets. TILLOTSONS (LIVERPOOL) Ltd. Oct. 3, 1963 [July 4, 1962], No. 38308/63. Heading B6B. [Also in Division B8] In a packaging machine, sleeves or cartons 24 are stored in a magazine 26 in a flattened condition from which they are withdrawn as required by suction grippers 28 mounted on a pivotable arm 64. The movements of the arm 64 are controlled by a cam 68 mounted on a shaft 46 which is connected by a chain 104 to the tip mechanism 100. The tip mechanism denoting presence of a package is actuated by a lever 106 through a connecting link 108 and operates valves 110 in the suction lines 112 to the suction cups 28. In the embodiment described, a duplex arrangement is shown, the two sides working in synchronization. The withdrawn sleeves 24 are fed by pushers 20 on a conveyer chain 36.
Patent GB-840302-A (GB)
Title: Improvements relating to the formation of chromate coatings on metal surfaces
Inventor: RAUSCH WERNER DR
IPC: B01J39/04
Filed: 1958-11-28
Abstract: In a process of forming a chromate coating on a series of articles of one of the metals, zinc, alloys consisting predominantly of zinc, magnesium, cadmium, copper, silver or brass by treating them with a single aqueous acidic solution containing hexavalent chromium in which the metal or trivalent chromium tends to accumulate in the solution during the treatment and interfere with the coating, the concentration of interfering metal is maintained at a level below that at which it deletenously affects the coating by withdrawing portions of the solution, passing them through a bed of a cation-exchange resin in a form containing both hydrogen ions and other cations that are harmless to the coating in proportions such that the solution is maintained in the effective pH range, and then returning them to the main body of the solution.  The other cations may be those of alkali metals or ammonium.  Treatment of the solution (which may also contain simple or complex fluoride ions, phosphate ions, sulphate ions, chloride ions, nitrate ions, ferricyanide ions, or arsenate ions) with the resin may be either continuous or intermittent; and two beds of resin are preferably used so that treatment of the solution and regeneration of the resin may be performed simultanously.
Patent GB-1357980-A (GB)
Title: Pigment production process
IPC: C22B34/12
Filed: 1972-08-18
Abstract: 1357980 Producing TiO 2  via TiF 4  BRITISH TITAN Ltd 29 March 1973 [18 Aug 1972 18 Jan 1973] 38536/72 and 2614/73 Headings C1N and C1A TiO 2  is produced by (1) converting an ironcontaining titaniferous material to TiF 4 , (2) reacting the TiF 4  with H 2 SO 4  to form Ti sulphate, (3) forming an aqueous acidic solution of the Ti sulphate, (4) thermally hydrolysing the solution to precipitate hydrous TiO 2 , and (5) calcining the precipitate. In step (1) preferably FeF 3  is reacted with preoxidized ilmenite at 500-1500‹ C. in air and the TiF 4  vapour condensed. Other materials mentioned are slags, leucoxene and mineral rutile, the latter being fluorinated in fluidized bed. Step (2) may be effected at 70-300‹ C., and the HF liberated reacted in aqueous form with the Fe 2 O 3  from step (1) to give hydrated FeF 3  which is heated with anhydrous HF to give FeF 3  and aqueous HF. In step (3) the Ti sulphate may be dissolved in water or dilute H 2 SO 4  and fluoride may be removed from the solution by passing in steam at 150-220‹ C. In step (4) the solution may be heated at 80-150‹ C. in the presence of anatase or rutile inducing nuclei (prepared conventionally). The hydrous TiO 2  may be repulped with water containing a reducing agent, e.g. Zn or Ti<SP>3+</SP>, and may be neutralized with ammonia to give (NH 4 ) 2 SO 4  which is decomposed into NH 3  and H 2 SO 4  for recycle. The H 2 SO 4  in the mother liquor from the precipitation may be purified by solvent extraction or ion exchange and reused. In step (5) the TiO 2  may be calcined in the presence of phosphates, sulphates, alkali metals, Al 2 O 3  or Zn compounds, at 700-1000‹ C., and may then be coated with oxides or organic compounds, and fluid energy milled, spray dried, or pelletized.
Patent GB-1016722-A (GB)
Title: A compressor or pump of the rotary abutment type
IPC: F04C2/36
Filed: 1962-10-11
Abstract: 1,016,722. Rotary pumps and compressors. ESTABLISSEMENT STUDIA TECHNICA. Oct. 11, 1962 [Oct. 13, 1961], No. 38598/62. Heading F1F. A rotary pump or compressor of the rotary abutment type comprises complementary profiled interengaging rotors 1, 2, Fig. 2, interconnected by external gearing to rotate at the same speed in overlapping parallel bores 3, 4 of a stator 5 having an inlet 7 and an outlet 8. The rotor 2 in rotating controls a duct 9 communicating with the outlet 8. Symmetrically disposed on etither side of the duct 9 are conduits 12 inter-connecting the bores 3, 4, so that the pump or compressor operates in two stages. During the first stage the rotor 1 on rotating transfers fluid from the bore 3 through the conduits 12 to a cavity 10<SP>1</SP> in the rotor 2 until such time that the rotor 2 closes the conduits 12. In the meantime the rotor 2 has unmasked the duct 9 and compressed fluid is discharged from the bore 3 directly to the cavity 10 and outlet 8. To vary the effective compression ratio one or more valves 16 each controlling a port 15 connecting the bore 4 with the outlet 8 may be fitted. Additionally one or more valves 19, each controlling a duct 17 connecting the compression space in the bore 3 to the inlet 7 may be fitted to regulate output. The valves 16, 19 may be controlled manually or spring-loaded.
Patent GB-369606-A (GB)
Title: Improvements in or relating to devices for the production of screened shades in printing formes
IPC: G03B27/06
Filed: 1930-12-22
Abstract: 369,606. Photo-mechanical printing- surfaces ; contact printing frames. ROMER, W., 3, Ul. Jak¾ba Strzemie, Lw¾w, Poland. Dec. 22, 1930, No. 38611. [Class 98 (ii).] In a printing frame for producing on a sensitive plate a number of different screen shades in different areas (as for example for hypsometric or geological maps) two frames are used, one carrying a screen, and the other the sensitive plate and an exchangeable printing or outline negative, one frame being fixed and the other being relatively adjustable in two perpendicular directions by means of micrometer screws on two adjacent sides of the fixed frame. The sensitive plate may be mounted on its frame by wax or similar cement of low melting-point, heating coils being provided for mounting and releasing the plate : alternatively the plate may be cemented in adjustable bars of the frame. In one construction the fixed frame 1 carries the screen 2. The adjustable frame 5 is supported along two adjacent edges by micrometer screws 10, 10<1>, 10<11> on the frame 1. The frame 5 has stiffening cross-bars 5<1> fitted with heating coils 6, the sensitive plate being cemented thereto. The coils are adjustable on the bars 5<1> to facilitate holding plates of various sizes. The printing negative, e.g. a celluloid film 3, is mounted in a holder 7 on the frame 5, and is changed for the successive printings of different areas of the sensitive plate, with corresponding adjustment of the frame 5. The trams 5 is clamped by releasable clamps 9. Eccentrics 22, 22<1>, 22<11> operated by arms 12, 12<1>, 12<11> are provided to facilitate the relative movement by the micrometer screws, after releasing the damps 9. In modified constructions (1) the screen frame is adjustable, the plate and negative frame being fixed, Figs. 7 and 8 (not shown) ; (2) the negative and plate frame is mounted in a rotatable holder with a view to avoiding moire effects, Fig. 5 (not shown) ; and (3) the sensitive plate is mounted on its frame by means of adjustable parallel bars, Figs. 9 and 10 (not shown).