baber/WOPTO huggingface dataset:
Patent GB-897960-A (GB)
Title: Improvements in internal combustion percussion tools
IPC: E21B1/34
Filed: 1960-03-23
Abstract: 897,960. Percussive tools. ATLAS COPCO A.B. March 23, 1960 [March 31, 1959], No. 10269/60. Class 124. An internal combustion operated percussive tool as described in Specification 739,453 is modified in that it is provided with a hammer piston acting directly on the steel shank and is guided in a guide member between the check chamber and the auxiliary piston chamber. As shown, a free piston has a motor portion 33, an auxiliary portion 34 of larger diameter, and a blow delivering portion 35 having a smooth cylindrical surface along its whole length forming a seal with a bore 31 in a guide 32 and preventing the escape of compressed air from a chamber 39 to a chamber 40. Flushing air may be led from a chamber 28 through a passage 44, 45, controlled by an adjusting screw 46, through passages 47 in the guide member 32 to a space surrounding the end of the drill shank 48.
Patent GB-1437319-A (GB)
Title: Internal combustion engines
IPC: F02M26/55
Filed: 1974-03-07
Abstract: 1437319 Fluid pressure control valves A PIERBURG AUTOGERATEBAU KG 7 March 1974 [10 May 1973] 10275/74 Heading F2V [Also in Divisions F1 and G3] A control valve for regulating the flow of exhaust gas into the induction pipe of an I.C. engine actuated by diaphragm means responsive to a pressure tapped from the induction pipe comprises two diaphragms one of which 104, in response to sub-atmospheric pressure in the chamber 103, first takes up the clearance between the stop 127 and hook 125 and then moves the valve stem 126 unless a sub-atmospheric pressure is introduced into chamber 105. Another type of control valve, Fig. 9 (not shown) has the first part of its movement controlled by a spring (211) and the second part by the combined springs (211), (213).
Patent GB-1522575-A (GB)
Title: Production of solid fuel-water slurries
IPC: B65G53/30
Filed: 1977-03-11
Abstract: 1522575 Conveying solids in liquids TEXACO DEVELOPMENT CORP 11 March 1977 [24 June 1976] 10292/77 Heading F1R A solid fuel-water slurry of improved pumpability characteristics contains between 0À1 and 5À0 wt per cent of ammonium hydroxide. Preferably the slurry further includes 0À01 to 3À0 wt per cent of an anionic surface active agent comprising an organic sulfonic acid salt e.g. ammonium lignin sulfonate or the sodium salt of 2,6-dihydroxynaphthalene sulfonic acid. Most of the solid fuel, e.g. lignite or sub-bituminous coal, preferably passes through a 200 mesh sieve. The resulting slurry containing only 40 to 50 wt per cent of water can be pumped to a gas generator.
Patent GB-356101-A (GB)
Title: Improvements in and relating to ovens, particularly of the continuous working or conveyor type
IPC: A21B1/48
Filed: 1930-04-01
Abstract: 356,101. Resistance ovens. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Shroyer, J. L. ; 812, South Carpenter Avenue, Oak Park, Illinois, U.S.A.) April 1, 1930, No. 10349. Convention date, April 1, 1929. [Class 39 (iii).] The Specification as open to inspection under Sect. 91 (3) (a) describes resistance heating units 40 for an oven for the commercial production of bread, pastries, cereal foods, &c. The units are constructed as described in Specification 144,767, [Class 37, Electricity, Measuring &c.], and each comprises an outer sheath 40a, Fig. 5 (Cancelled), and a helical resistor 40b embedded in refractory material. Each unit is slidably mounted in an inverted trough 40d, in which it is supported by pins 40e. This subject-matter does not appear in the Specification as accepted.
Patent GB-661703-A (GB)
Title: Improvements in the refining of fatty glycerides
IPC: C11B3/06
Filed: 1949-04-20
Abstract: Fatty glycerides are alkali-refined in the presence of a small amount of an inorganic phosphate compound.  The usual caustic soda lye is used with the formation of an aqueous phase containing impurities and a refined oil phase, which phases may be separated by gravity, as in kettle refining, or by centrifugal means.  The presence of the phosphate compound reduces the refining losses, particularly in the kettle or batch processes, which are preferred.  The latter may be operated by the "dry" method of refining, i.e. by removing the refined oil from the settled foots or by the "wet" method of refining, i.e. by washing the alkali-refined oil in the kettle with a hot water spray, settling, and removing the aqueous phase from the bottom.  The inorganic phosphate compound is preferably a surface active compound and does not exceed 0.75 per cent based on the weight of the glyceride; the amount preferably lies between 0.05 and 0.5 per cent.  The phosphate in the form of an aqueous solution is preferably added to the fatty glyceride prior to adding the alkali.  The inorganic phosphates specified comprise sodium pyrophosphate, trisodium phosphate, mixed sodium pyrophosphate and metaphosphate, Na5P3O10, and sodium hexameatphosphate (NaPO3)6.  The process is particularly applied to the alkali-refining of soyabean oil and cottonseed oil.
Patent GB-636685-A (GB)
Title: Improvements in or relating to fuel burners for gas-turbine-engines
IPC: F23D11/26
Filed: 1947-04-18
Abstract: 636,685. Liquid fuel burners. DAVIES, K. R. April 18, 1947, No. 10460. [Class 75 (i)] [Also in Group XXIX] In a fuel burner the flow of fuel is varied by a leaf spring extending across ports leading into a swirl chamber. The burner comprises a cup-like main body 10 in which a thick walled cylindrical swirl body 14 and nozzle plate 15 are retained in position by a threaded cap 12. An annular fuel space 17 communicates with a central swirl chamber 18 by ports 19 each defined by a wall 20 tangential to the swirl chamber 18 and by a curved wall 21. A leaf spring 22 secured at one end in a notch 23 is bent round the body 14 with its free end in contact with wall 20. An end closure member 24 bolted to the cylindrical swirl body 14 has a divided skirt 25, which holds the leaf springs 22 in position. Variation in pressure of the fuel supply in the annular space 17, deflects the leaf springs 22 thus varying the effective cross-sectional area of the ports 19.
Patent GB-213133-A (GB)
Title: Improvements in or relating to overhead sewing machines
IPC: D05B13/00
Filed: 1923-04-17
Abstract: 213,133. MacDonald, D. J., Mac- Donald, W. R., and MacDonald, Ltd., D. J. April 17, 1923. Running - stitch machines; sack - sewing machines. - In an overhead sewing-machine of the kind in which a needle-pad is arranged in conjunction with needle-comes the .recess in the pad is arranged so that the seam can lie circumferentially therein, a greater depth of seam being thus obtainable. The machine described is adapted for sewing sacks and comprises a needle-pad e with a broad shallow recess g. The sacks are supported on a conveyer n and are secured by clamps slidable on a bar m and comprising jaws n latched against the pressure of a spring q by a catch r, s. The clamps are traversed by a travelling screw engaging half-nuts o. As the clamps reach a folding scroll adjacent to the sewing point the catch-levers s are released by a fixed cam.
Patent GB-559020-A (GB)
Title: Improvements in or relating to polystyrene moulding compositions
IPC: B29C33/62
Filed: 1942-07-28
Abstract: 559,020. Polystyrene moulding compositions. BAKELITE, Ltd. Julv 28, 1942, No. 10556. Convention date, Aug. 1, 1941. [Class 2 (iii)] A resinous moulding composition comprises polystyrene and a mould lubricant consisting of up to 1 per cent. by weight of the composition of a defined polyalkylene oxide having an average molecular weight greater than 400. Preferred proportions are 0.1-0.7 per cent. by weight and the preferred lubricant is polyethylene oxide. The polyalkylene oxides are long chain polyalkylene glycols formed from an alkylene oxide and an alkylene glycol or an alkylene glycol mono-ether, and include mixtures of polyalkylene oxides. The composition may be made by simple mixture or by mixing the lubricant with monostyrene and then polymerizing. In examples mixtures are made of polystyrene, polyethylene oxide and (1) black dye, (2) titanium dioxide and red dye. In examples (3) and (4) polyethylene oxide is mixed with monostvrene and the mixture polymerized. Specifications 349,638 and 352,042 are referred to.
Patent GB-774240-A (GB)
Title: Improvements in or relating to travelling-wave tubes
IPC: H01J23/28
Filed: 1955-04-12
Abstract: 774,240. Travelling wave tubes. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. April 12, 1955 [April 8, 1954; June 28, 1954], No. 10567/55. Class 39(1). [Also in Groups XL(b) and XL(c)] A travelling wave amplifier or oscillator using forward or backward waves has an annular beam passing along and within a cylindrical delay line, Fig. 1 and a high frequency coaxial feeder line 7, 8 extending axially within the annular beam and out through the tube envelope in the same axial direction the inner conductor of the feeder line being connected to the gun end of the delay line by a rod extending perpendicular to the axes and passing through a slot in the outer conductor. The feeder line 7, 8 which as shown is the coaxial output line of a backward wave oscillator may be taken out through the collector 3 as shown, or through the gun, Fig. 3 (not shown). The delay line is of interdigital form comprising a bar 1 carrying incomplete rings 2 attached alternately to opposite face thereof. The bar 1 is secured at one end to collector 3 and carries at the other end support 6 to which are secured rods 17 carrying mica members 18 supporting the gun electrodes. The inner conductor 8 of the output line is connected to the last finger of the dalay line by rod 11 and is spaced from outer conductor 7 by mica spacers 9. The gun comprises annular indirectly heated cathode 14, Webnelt electrodes 15, 19 with separate leads and gun anode 6, 13. Magnetic focusing means comprising an annular body made up of juxtaposed permanent magnets 22 with pole pieces 20, 21 act on the whole length of the beam ; the permanent magnet 22 may alternatively be an assembly of parallel bars disposed edge to edge in which case the pole pieces are circular or polygonol e.g. square or hexagonal. In a modification, Fig. 3 (not shown) the Webnelt disc 15 is replaced by a cylinder and a steatite spacer is interposed between the outer Webnelt annular electrode and the gun anode. Since the output power increases with the frequency, for constant output power means must be provided for increasing output power for low frequencies and decreasing it for high frequencies. The input D.C. power and consequently the h/f. output power can be reduced by making the outer Webnelt electrode and if desired also the inner Webnelt electrode more negative to reduce the beam current to increase the output power for low frequencies the inner Webnelt electrode is made more negative to force the electrons nearer to the delay line and so to increase the interaction between beam and wave. If the attenuator 29 is dispensed with and replaced by a second output line 23, the tube may function as a for wardwave amplifier or as a forward wave oscillator (with an external feedback channel).
Patent GB-570294-A (GB)
Title: Improvements in or relating to the interaction of carbon disulphide and primary or secondary amines
IPC: C07C333/16
Filed: 1943-06-30
Abstract: The removal and recovery of carbon disulphide and/or of primary and secondary amines is effected by contacting a liquid, vapour or gas containing carbon disulphide and a primary or secondary amine or a liquid containing the same, in the presence of ammonia, to form ammonium mono- or di-, aryl or alkyl dithiocarbamate, removing the same, and decomposing it to regenerate carbon disulphide and the amine.  Crude benzole, benzole fore-runnings, oils, and hydrocarbon vapours may be treated for removal and recovery of carbon disulphide, and crude coal tar bases and oils for recovery of amines.  Aniline, toluidines, and diethylamine are suitable amines.  The presence of excess of ammonia and of concentrated aqueous ammonia during the reaction suppresses the formation of thiocarbanilide which may otherwise occur.  In Examples: (1) benzole fore-runnings are mixed with aniline and .880 ammonia, the precipitate of ammonium phenyl dithiocarbamate filtered off, and the benzole layer washed with water and acid.  The aqueous layer and the precipitate are acidified with sulphuric acid to decompose the dithiocarbamate, and distilled to recover carbon disulphide.  The liquid is then made alkaline and steam distilled to recover aniline oil; (2) benzole fore-runnings are mixed with coal tar bases containing aniline and ammonia.  The precipitate is dissolved by adding aqueous ammonia and the benzole and aqueous layers separately worked up to recover benzole, carbon disulphide and aniline bases; (3) benzole fore-runnings are treated with aniline and excess of concentrated aqueous ammonia to remove carbon disulphide which is recovered.
Patent GB-106816-A (GB)
IPC: F23D3/00
Abstract: 106,816. Central Oil & Gas Stove Co., (Assignees of White, F. E., and Hooper, F. B.). May 27, 1916, [Convention date]. Wick burners, flame-regulating in; flamespreaders; oil reservoirs.-An oil stove has an air-distributor d and a locking-device for limiting the upward movement of a stop h, and consequently of the wick, and means are provided for automatically releasing the locking-device when the stop is being removed by hand. The stop h has a flared perforated upper end and is provided with a flange i resting on the wick and a transverse rod i passing through slots k in the air-distributor d. When the wick is raised, the stop h lifts the distributor until the shoulders of a pair of latches r, pivoted on the rod i, strike a disk o secured by a skeleton frame n in the central air-tube, the latches being in the position shown in Fig. 2. If the distributor is lifted by the flange g, the latches are swung apart, as shown in Fig. 3, by the engagement of a staple t with the triangular slots s in the latches, and the distributor and slot h may be removed together. The wick-tubes b, b<1> pass through the bottom of the reservoir, the outer tube being provided with oilsupply openings near the reservoir bottom; but in a modification, the outer wick-tube projects into a reservoir, the bottom of which is provided with a central depression in the form of an inverted truncated cone.
Patent GB-213135-A (GB)
Title: Improvements in rock-drills of the detachable cutter type
IPC: E21B10/62
Filed: 1923-04-19
Abstract: 213,135. Kirby, R., and Mackenzie, D. April 19, 1923. Percussive drills. - A detachable bit 8 is seated in a .groove 7 and is held in a pair of jaws 11 at the end of a folded member 14. A cotter 14 is carried in the inner end of the member 14 and is en- :gaged by a spring 17 which abuts against a shoulder formed by a bushing 6.
Patent GB-846047-A (GB)
Title: Improvements in or relating to bistable electronic circuits
Inventor: WEBB HERBERT HENRY
IPC: H03K17/18
Filed: 1958-04-03
Abstract: 846,047. Transistor multistable state circuits. RACAL ENGINEERING Ltd. April 1, 1959 [April 3, 1958], No. 10714/58. Class 40(6). A bistable circuit comprises a transistor and a gas discharge tube which is connected in series with a resistor the junction between which is connected to the output of the transistor so that when a pulse is applied to the transistor the gas tube conducts and the voltage across the resistor is applied to bias the transistor so that the tube remains conducting until a pulse of opposite polarity is applied to the input of the transistor. The Figure shows a bistable circuit in which when a negative pulse is applied to the base of transistor Trl the transistor bottoms and the resulting positive pulse at its collector causes neon tube N1 to fire the current flow through resistor R1 being applied back to the base of the transistor so that the transistor remains bottomed. This condition exists until a positive pulse is applied to the base of the transistor when the transistor is cut off and the neon tube Nl is extinguished. The resistor R12 may be replaced by a delay network. A ring counter circuit using a chain of such bistable circuits has pulses to be counted applied from a common input source to the base of each transistor which is also connected via a capacitor to the neon tube in the preceding stage so that with each input pulse the ON state is progressed round the counter chain Fig. 2 (not shown).
Patent GB-1306345-A (GB)
IPC: D04H1/72
Filed: 1971-04-22
Abstract: 1306345 Web forming GEORGIA-PACIFIC CORP 22 April 1971 [24 April 1970] 10733/71 Heading D1N A web is formed by depositing fibres from a spiked roller 13 onto a further spiked roller 15 in side by side end on relationship, the spikes 18 on a roller 17 then apply an axial load to the fibres to lay them in random orientation and lift them off roller 15 as a web. The web is doffed by a comb 19. Fibres may be supplied to the web former from a carding machine.
Patent GB-273426-A (GB)
Title: Improvements in and relating to apparatus for playing a new game
IPC: A63F5/04
Filed: 1926-04-23
Abstract: 273,426. Smith, G. April 23, 1926. No Patent granted (Sealing fee not paid). Games of chance. - Game apparatus comprises a plurality of coaxial rotatable discs a, b, c and means for controlling their rotation, the discs bearing markings adapted to be displayed against a fixed index or at an aperture in the casing of the apparatus. If the controlling means, such as the toothed levers k, l, m, are not employed to stop the discs, the markings will not register with the index or opening, by reason of spring-pressed toothed levers 26, 27, 28 engaging the star-wheels h, i, j connected to each disc. The discs are mounted on eccentric hubs e, f, g and toothed wheels 1, 2, 3 on the end of each hub are engaged by a tooth 19 on a lever 4 pivotally connected to an arm 16 of a rocking frame 5. The frame 5 is rocked by the engagement of a pawl 8 of a lever 9 operated by a handle outside the casing with a lever 12 on the frame, and on the return of the frame under the action of a spring 6, the tooth 19 causes the wheels and discs to rotate. Before the frame 5 is free to return, however, the lever k must be operated, this lever engaging a lever 58 that carries a pawl 57 engaging a lever 56 secured to the frame. By this means, the control device has to be used before the discs can rotate. The levers 26, 27, 28 are provided with arms 39, 40, 41 engaged by an arm 44 of the frame 5 when it is raised to free the discs, and heels 42 on these levers are engaged by an arm 51 that moves with a delay action to allow the levers to re-engage the star-wheels only after a definite time. The arm 51 is pivoted at 52 to the base-plate of the apparatus, and at its other end it is connected by a link 50 to one arm 47 of a bell-crank lever having a one-way drive on its arbor 48. A depending arm 45 of the frame 5 drives the lever 47 in one direction, and a slow return motion is effected by the lever driving an air-brake 49. A detent 25 prevents retrograde movement of the discs while the tooth 19 is being raised, but movement of the frame 5 causes the lever 16 to engage a bell-crank lever 72 that moves the depending shank 70 of the detent. Return of the detent is prevented until the discs have stopped by a portion 76 of the delay arm 51 passing under a rod 74 depending from the lever 72. The controlling levers k, l, m are each provided with a spring 62 to keep them out of engagement with the starwheels, and spring-controlled plungers r, s, t operate the levers. Pairs of levers may be connected by levers 63 to prevent them being used simultaneously. The load on each disc may be varied bv an adjustable spring 38 engaging a grooved wheel on the disc.
Patent GB-760423-A (GB)
Title: Improvements relating to fasteners
Inventor: FERNBERG ERIC BIRGER
IPC: F16B5/06
Filed: 1954-04-12
Abstract: 760,423. Stud and socket fasteners. F.T. PRODUCTS, Ltd. April 5, 1955 [April 12, 1954], No. 10783/54. Class 44. A two-part snap fastener for securing a sheet 41 formed with a cruciform hole 42 to a panel 46 formed with an aperture 47, comprises a snap stud 20 in the form of a single strip of spring metal bent to U-shape and having snap-engaging elbows 24, 25, a neck 26 and outwardly directed feet 27, 28; and a retainer 29 having a plate-like body 30 formed with spaced aligned channels 37, 38 under which the feet of the stud can be engaged and which channels substantially fill the cross arms of the cruciform hole and with arms 31, 32 of width substantially equal to the width of the stem of the cruciform hole which arms extend upwardly from the plate-like body and can be clenched on to the sheet so that the retainer grips the sheet between the plate-like body and the arms, the retainer substantially filling the hole. The fastener is intended to be used for securing a trim part to an automobile body, the sheet 41 being of hardboard or like material with a covering 44 of rexine or the like and with cotton wool 43 between the covering and the board 41. The retainer is secured to the board by a clenching tool so that the portions 30A, 30B, 30C and 30D of the body 30 which are on the covered side of the board are squeezed into the board so that they do not stand proud. This enables a decorative pattern to be impressed on the face of the covering without the retainer marking the covering. The arms 31, 32 are of reduced width at their roots to ensure that the arms bend at the correct position when they are being clenched and the channels 37, 38 are formed by making two parallel cuts 39, 40 in the body of the retainer and then pressing the metal out of the top plane of the body. Specification 451,721 is referred to.
Patent GB-312755-A (GB)
Title: Improvements in sliding windows of motor road vehicles
IPC: E05F11/38
Filed: 1928-04-12
Abstract: 312,755. Park, Ward, & Co., Ltd., and Park, W. M. April 12, 1928. Vehicle-window opening and closing apparatus; windows having signalling openings.-The window of a road vehicle comprises upper and lower sashes 3, 4, which are independently movable in separate guides by suitable actuating means and handles 12, 7. The lower pane 4 is narrower than the upper and is housed on the inside, and when depressed permits of hand signalling. The lower pane may be urged downwardly by a spring or by hand when released. The actuating means comprise chains 5, 10 passing over sprockets and connected by studs to slotted brackets 9, 13 on the sash 4, and a member 14 connecting extensions of the side members of the sash 3, respectively.
Patent GB-561942-A (GB)
Title: Improvements in or relating to internal combustion engines operating on the two-stroke cycle
IPC: F02B75/28
Filed: 1942-08-05
Abstract: 561,942. Two-stroke -engines. SULZER FRERES SOC. ANON. Aug. 5, 1942, No. 10902. Convention date, Sept. 5, 1941. [Class 7 (ii)] In a two-stroke engine having in each cylinder 9 opposed pistons 3, 4 connected to crank-shafts 1, 2 which drive a main shaft 8 through gearing 5, 6 and a central gearwheel 7, one of the crankshafts having an angular lead in relation to the other, the engine auxiliaries such as a charging compressor, an exhaust turbine, cooling water pumps, and lubricating or control-oil pumps are so dimensioned or arranged that the two crank-shafts transmit approximately equal power to the main shaft. As shown, rotary compressors 15, 16 on the crank-shafts 1, 2 both supply combustion air to the induction pipe 21, and an exhaust-driven turbine 13 and an auxiliary electric generator E are mounted on the crank-shaft 2. The compressors 15, 16 may be of any rotary or reciprocating type and the turbine 13 may be geared to the crank-shaft 2. The crank-shaft 1 at the exhaust end of the cylinder may have a lead of 5 degrees to 10 degrees over the crank-shaft 2.
Patent GB-196474-A (GB)
Title: Improvements relating to healds used for weaving
IPC: D03C9/02
Filed: 1922-04-18
Abstract: 196,474. Jennings, E. April 18, 1922. Paints.-To preserve, and to improve the elasticity of, the healds or heald cord of weaving looms they are treated with varnish to which china clay has been added.