baber/WOPTO huggingface dataset:
Patent GB-671470-A (GB)
Title: Improvements in or relating to compressed air operated piston apparatus
IPC: F01B17/00
Filed: 1949-03-25
Abstract: 671,470. Operating railway points. STRUNK, G. March 27, 1950. [March 25, 1949] No. 8236/49. Class 104 (i). [Also in Groups XXVIII and XXIX] In a compressed air actuated single-stroke piston and cylinder assembly suitable for switching rail points wherein the stroke is effected by alternately venting chambers 5, 4, Fig. 1a, on either side of the piston 2 through ducts 10, 12 controlled by a valve 14 and ducts 11, 13 controlled by a valve 15, the chambers 5, 4 are connected symmetrically through further ducts 18, 19 to a flutter valve 16 which allows access of compressed air to vent ducts 11, 13 for the time being closed but denies it to the temporarily open vent ducts 10, 12 ; or conversely to open air exhaust to atmosphere for the valve-controlled pipe for the time being open and to close said exhaust to the valvecontrolled pipe for the time being closed. In operation and on opening say valve 15 the resulting air flow in the flutter valve housing 6 causes the valve 16 which may be of the ball spring-biassed disc or plunger type to seat in the position shown and thus allow access of pressure air to the chamber 5. On closing valve 15.and opening valve 14 the ball 16 assumes its opposite seat to allow air to flow to the chamber 4 to effect the return stroke. In a modification, the vent valves 14, 15 are replaced by a single vent port 26, Figs. 1a and 1b, controlled by a differential piston 42, 45 itself controlled by a single relief valve 49 which when opened releases pressure from below the piston 45 to allow a wedge 52 to hold an auxiliary valve 25 seated against an extension 22, or 23 of the ducts 10, 11 respectively and thereby exhausts one or other of them to the port 26 now uncovered by the piston 42. In a further modification, the chamber 5, Fig. 9, is first vented through a chamber 17 of a control cylinder 86 to the open valve 14, and the flutter valve 16 allows access of air to a chamber 17a to displace the control piston 8 and supply compressed air to the working chamber 4 and simultaneously connect the chamber 5 to a vent 9. The valves 14, 15 are controlled by a hand striking lever 61, Fig. 6, acting alternately on valve plungers 14a, 15a through an eccentric 65 and a rocking lever 66 mounted on the rod 68 of a piston 69 normally held in its right-hand position by a spring 71. The valve 15 can be opened only when the piston 69 is subjected to pressure in the chamber 4, and the lever 61 is in its neutral position thus allowing displacement of the piston rod 68 and lever 66 beyond a stop. In a further modification which corresponds with the construction described with reference to Figs. 1a, 1b, reversal takes place by compression and not by venting of one of the pipes leading to the working piston.
Patent GB-654943-A (GB)
Title: Improvements in or relating to electron-discharge devices and circuits therefor
IPC: H01J1/312
Filed: 1947-03-26
Abstract: 654,943. Electron discharge apparatus. PHILIPS LAMPS, Ltd. March 26, 1947, No. 8237. Convention date, Nov. 3, 1944. [Class 39 (i)] A field emission cathode comprises a conducting substratum 1, an insulating layer 2 a few microns thick, and an emissive layer 3, e.g. caesium oxide. The nearest grid 4 carries a positive potential, the second grid 5 being the control grid. Some operating voltages are given. Further grids may be interposed between grid 4 and the cathode. Over a certain range the anode-current/control-gridvoltage characteristic is negative, and a possible explanation is discussed.
Patent GB-228391-A (GB)
Title: Improvements in the manufacture of discs for universal couplings
IPC: F16D3/78
Filed: 1924-04-02
Abstract: 228,391. Franklin, A., and Self-Sealing Rubber Co., Ltd. April 2, 1924. Moulding flexible discs. -In the manufacture of flexible discs for universal couplings of the kind described in Specification 214,745, [Class 80 (ii), Gearing, Variable-speed &c.], the component parts of the disc, consisting of a number of sheets 2 of textile material with one or more intervening layers 1 of sheet rubber B and a peripheral strip 3 of rubber, are placed in a two-part mould 5, 8 having detachable dowel pins 6 which pass through clearance or bolt holes 4 in the parts 1, 2 and are then vulcanized together, the heat of vulcanization causing the rubber of flow so as to form a waterproof coating for the threads of the textile material at the inner surfaces of the bolt holes and at the periphery of the disc. Smaller holes 9 for rivets and other securing members are formed by detachable pointed pins 10 which are driven into holes in the mould parts before vulcanization and divide the threads of the textile material without cutting them.
Patent GB-396331-A (GB)
Title: An improved method of and electrode for welding steel
IPC: B23K35/30
Filed: 1933-03-20
Abstract: 396,331. Uniting by fusion. NAAMLOOZE VENNOOTSCHAP MACHINERIEENEN APPARATEN FABRIEKEN, Utrecht, Holland. March 20, 1933, Nos. 8402 and 8403. Convention date, March 21, 1932. [Class 83 (iv).] The core of a coated electrode for arc welding soft, alloy, and other steels consists of acid Siemen's-Martin steel. A carbon steel may be used, deoxidizing and alloying substances being contained in the coating or these substances may be wholly or in part alloyed with the core metal. The de-oxidizing substances may be contained in a coating immediately surrounding the core, with an outer coating of sheathing material. The de-oxidizing substances may consist of ferro-manganese, ferro-silicon, manganese, silicon, carborundum, chromium, nickel, or molybdenum. The core should contain not more than 0À015 per cent of sulphur. The process may be performed mechanically and be automatically controlled.
Patent GB-324570-A (GB)
Title: A new or improved wardrobe or container for garments
IPC: A47G25/54
Filed: 1929-03-15
Abstract: 324,570. Laughton, G. A. March 15, 1929. Coverings for protecting wearing-apparel front dust. -In a device of the type comprising a frame, enclosed in a bag, adapted to be attached to a wall and provided with devices to which garments can be hung, the frame a is of light metal and is of triangular shape. The frame a has a strengthening piece c betwen which and the long side is arranged a corrugated wire e from which clothes' hangers can be suspended. Brackets h and hooks f are attached to the short sides, and are pivoted so that they can be turned flat with the frame for packing. The whole is enclosed in a bag j fastened by press buttons k and kept expanded at the bottom by a light board or frame d. Pockets are formed inside the bag.
Patent GB-394632-A (GB)
Title: Improvements in processes of producing prints or discharges on wool
IPC: D06P1/22
Filed: 1933-03-21
Abstract: Vat or other alkaline printing or discharge pastes are made suitable for use on wool by incorporating therewith aminoacetic acid or a salt thereof.  The following examples are specified: (1) Wool is printed with an aqueous paste containing Indigo pure BASF, glycerine, gum thickening, potassium carbonate, sodium formal-dehyde-sulphoxylate and sodium aminoacetate, dried, steamed for about 5 minutes, exposed to air, passed through a bath containing sodium perborate and acetic acid, rinsed, soaped and dried.  (2) Woollen goods, dyed with the dyestuff of example 1 of Specification 347,290 are printed with an aqueous discharge paste containing Indigo pure BASF and other ingredients as in (1) and finished; the colour of the discharge areas is of a similar fastness to that of the ground; other vat dyes, e.g. of the Indanthrene, Algol and Hydron series, having affinity in an alkaline vat for wool, may be used.  (3) Woollen goods, dyed with Naphthol blue-black S, are printed with a similar aqueous discharge paste containing as the vat dyestuff Hydron orange R and finished.  A further example illustrates the improvement in the tensile strength of zephyr wool yarns printed with the paste of (1) and finished.
Patent GB-558196-A (GB)
Title: Improvements in pick and like handles
IPC: B25G3/02
Filed: 1942-06-22
Abstract: 558,196. Attaching handles. ANTEL, M. J. June 22, 1942, No. 8551. Convention date, July 30, 1941. [Class 83 (ii)] [Also in Group XXIII] A ferrule shod handle for engagement with an eyed pick &c. 3 is formed by providing a wood handle 6 with an outwardly flared end 7 starting at a waist 12, passing a ferrule blank 20 on to the flared end and shaping the blank to conform to the flared end by means of dies 23, Fig. 4, forming tapering folds 19 down the sides of the ferrule or acting to close slots 27 in the ferrule 26, Fig. 5. The other end of the handle is similarly flared and shod with a protective ferrule 32 preferably made more secure by splitting the upper rim of the ferrule at 35 and pressing the corner tongues 36 into the wood.
Patent GB-194734-A (GB)
Title: Improvements in the tube joints of tubular boilers, steam generators, or the like
IPC: F28F9/02
Filed: 1921-12-19
Abstract: 194,734. Knowles, W. L. Dec. 19, 1921. Jointing tubes to headers.-Relates to tubular boilers for motor vehicles of the kind wherein the tubes a pass through the inner header plate b<2>, Fig. 1, to the outer plate b<1> the ends of the tubes being closed by plugs c, and holes a', a<2> being formed in the tubes between the header plates, which are spaced apart by one or more welded rings b<3>. The tubes are welded to the plates b<1>, b<2>, and the plugs c to the tubes. The tubes may be arranged in circles. as shown in Fig. 2, the tubes in one circle being opposite the spaces in the adjacent circle.
Patent GB-969444-A (GB)
Title: Trailer coupling
IPC: B60D1/04
Filed: 1963-03-05
Abstract: 969,444. Pivoted hook couplings. M. H. HOEPLI, and K. J. KARNATH. March 5, 1963 [March 7, 1962], No. 8643/63. Heading B7T. A hook 2 pivoted at 3 in a casing 1, Figs. 1, 2, is held locked in the coupled position shown by a wedging roller 4 slidablymounted onapivoted U-shaped lever 5. The roller has a slightly angular surface 4a which in the dotted position of the lever moves directly over the hook 2 to allow the hook to pivot to an open position. A pin 6 on the lever 5 may be engaged in either of the holes 1e 1f, by moving the lever sideways against the action of springs 7, which springs also tend to rotate the lever to the coupling closed position. In a modification, Figs. 3, 4 (not shown), the roller is provided with limited vertical movement in the limbs of the lever so that a cross-bar taking the place of the pin 6 may be lifted and lowered into grooves in the housing. In Fig. 5 a pin 6<SP>11</SP> may be engaged in either of two holes 1e<SP>1</SP>, 1f<SP>1 </SP>in the roller by a spring 10 having a handle 12, the pin being maintained out of engagement after lifting by the handle 12 and downward pivoting of the hook, by a pin 9 moving over a cam surface 11 on the hook. In another embodiment, Figs. 6, 7 (not shown), the roller is below the hook and is integral with the lever which is provided with springs exerting pressing and turning forces, and spring engaged locking bolts (not shown) may be carried by the lever.
Patent GB-308593-A (GB)
Title: Improvements in two-stroke internal combustion engines
IPC: F02B25/00
Filed: 1929-03-18
Abstract: 308,593. Kadenacy, M. March 23, 1928, [Convention date]. -Two - stroke - cycle engines; exhaust pipes, fittings for. - Piston-controlled exhaust ports 8 are fitted with flap valves comprising semi-circular strips 9 fixed at their centre portions to abutments 10, 11, between which they operate. The space between the cylinder and the valves 9 is designed to be about equal to the volume, at atmospheric pressure, of the residual gases left in the cylinder after the exhaust is closed, that is between 0.5 and 0.1 of the cylinder volume. The inlet passage 5 may be fitted with a valve comprising a circular strip 17, Fig. 5, formed with internal arms 17<a> secured to the seating 15, deflectors 16, 18 being fitted on opposite sides of the valve. In a modification, the inlet is arranged in the cylinder head and is controlled by a poppet valve. Fig. 4 shows the application to an engine having two oppositely-moving pistons 3<a>, 3<b> so arranged that the latter closes the exhaust ports 8 while the inlet ports 6 are still open. The inlet passage 5 is fitted with flap valves 26 similar to the valves 9 in the exhaust passage. Specification 269,181 is referred to.
Patent GB-1097249-A (GB)
Title: Change-speed transmission having a synchronizing device
IPC: F16D23/06
Filed: 1966-02-28
Abstract: 1,097,249. Positive clutches. DR. ING' h.c.F. PORSCHE KOMM. GES. Feb. 28, 1966 [Feb. 26, 1965; Dec. 28, 1965], No. 8774/66. Heading F2C. In a clutch having a split-spring ring synchronizer between an internally toothed axiallyslidable clutch sleeve 6 and an externally toothed clutch part 10, a baulk ring 15 is mounted with limited rotational play for rotation with the clutch sleeve 6 and is engaged frictionally during clutch engagement between the synchronizing ring 12 and the clutch part 10 to aid synchronization. The clutch sleeve 6 is axially slidably mounted on webs 5 of an axially fixed carrier 4, the baulk ring 15 having baulk teeth (21), (Fig. 2), with gaps co-operating, with play, with the webs 5 so that the teeth (21) baulk engagement of the internal teeth 7 of the sleeve 6 until synchronization occurs. In a simplified form, shown in the right-hand half of Fig. 1, the baulking teeth are dispensed with, the friction member 15 merely assisting synchronization and having a projection 34 engaging in a slot in each web 5 so as to rotate with the sleeve 6. The friction surfaces engaging the ring 15 may be radial or single or double conical. Conventional means may be provided between the internal periphery of the synchronizing ring 12 and a surface 10<SP>1</SP> of the part 10 for increasing the blocking effect of the ring 12.
Patent GB-146598-A (GB)
Title: Improvements in the extraction of arsenic and other impurities from sulphuric acid
IPC: C01B17/90
Filed: 1919-04-07
Abstract: Sulphuric acid of strength up to about 150 DEG  Tw. is freed from arsenic by treatment with sulphuretted hydrogen under such conditions that the acid itself is not attacked, that is to say, the acid is thoroughly impregnated with the gas, which may be effected in apparatus described in Specification 2113/09, [Class 55 (ii), Gas manufacture &c.], and a temperature not above about 180 DEG  C., and the precipitate is quickly separated, preferably in a vacuum or pressure filter.
Patent GB-492685-A (GB)
Title: Improvements in and relating to conveyors
IPC: A21C15/00
Filed: 1937-03-25
Abstract: 492,685. Conveyers. PATERSON, J. C., and BAKER PERKINS, Ltd. March 25, 1937, No. 8798. [Class 78 (i)] Biscuits, dough shapes, and like articles are lifted from one conveyer by an air blast and supported thereby against the underside of a superposed travelling surface or conveyer which delivers them to another conveyer or downwardly inclined stationary surface. The biscuits are brought to the transfer point by an endless conveyer 12 which is in the form of pervious baking trays, mounted upon endless chains. Blasts of air from nozzles 18, 19 lift the biscuits and press them against the lower run of the conveyer 14. The latter conveyer removes them from the zone of action of the air, and they fall upon the conveyer 10. The receiving end of this conveyer is bent round a knife edge 11, or small spindle, in close proximity to the conveyer 12. When no transverse bars, or other masking elements, are present in the trays, one of the nozzles 18, 19 may be dispensed with. The supporting plates of the conveyer 14 are pivoted at one end and are adjusted by screws mounted in the other end. The knife edge 11 is pivoted in these supporting plates and is adjusted by screw-and-nut mechanism. When the conveyer 12 is impervious, a bight in it is formed in a vertical plane and the nozzle is arranged in the mouth of the bight. The nozzle also may be placed in the gap between two steel conveyers, and used in conjunction with a superposed conveyer to convey biscuits from one to the other. Biscuits may also be transferred from one conveyer to another arranged parallel, or at an angle, thereto. The air blast may be carried away or aided by a suction hood placed between the runs of the conveyer 14. Specification 319,227, [Class 78 (i)], is referred to.
Patent GB-761969-A (GB)
Title: Improvements in or relating to dephosphorisation of steel
IPC: C21C7/064
Filed: 1952-04-07
Abstract: Molten steels are dephosphorized and refined by the addition of hydrated sodium carbonate (Na2CO310 H2O) with or without anhydrous sodium carbonate, to the melt.  The addition may be made to the production furnace or converter during or after the final production stage or may be made to a stream of the finished steel or to the ladle.
Patent GB-397794-A (GB)
Title: Improvements in and connected with change speed gear selector devices for use on motor road vehicles
IPC: G05G7/02
Filed: 1933-03-24
Abstract: 397,794. Controlling change-speed gearing. HUKINS, A. E. and E. N. V. ENGINEERING CO., Ltd., 4, Hythe Road, Willesden, London. March 24, 1933, No. 8926. [Class 80 (ii).] A selector device for " straightthrough" operated change gearing upon a vehicle comprises a tubular housing 1 with clamping means 4, Fig. 1, at one end for attachment to the steering column. A rotary knob 6 at the other end is secured at 7, Fig. 3, to a spindle 8 which extends through the housing 1 and is geared at 11 to a reciprocal rack 13 which slides within a transverse tubular guide 15, Fig. 1, closed at one end 15a to stop the rack which is connected at 19 to the change gearing. The free end of the housing 1 is formed at 24, Figs. 3 and 5, with a cylindrical face having notches adapted to be engaged in gear positions by a spring plunger 23 carried by the knob 6. The plunger 23 may be carried inside a radial handle 22 on the knob. Between a notch N, Fig. 5, for neutral and a notch R for reverse is a projecting abutment 25 which the plunger 23 cannot slip over. To pass into reverse it is necessary to pull the knob 6 to the right of Fig. 3 far enough for the plunger 23 to pass clear of the abutment 25, in which position the knob can be turned farther without obstruction. The knob 6 is preferably provided with speed indications as shown in Fig. 1 which are preferably illuminated by a spot-light lamp 27.
Patent GB-1170124-A (GB)
Title: Improvements in or relating to Patterning Devices for Circular Knitting Machines.
IPC: D04B9/26
Filed: 1967-02-24
Abstract: 1,170,124. Knitting-machines. EDOUARD DUBIED ET CIE (S.A.). 24 Feb., 1967 [11 March, 1966], No. 8966/67. Heading D1C. A pattern mechanism for a circular machine comprises a series of pattern devices and at least two perforated pattern bands each controlling a group of the devices. In one embodiment the bond comprises a separate track for each device controlled so that patterns of unlimited extent can be produced. The preferred pattern device comprises a wheel having a slotted drum 47 carrying pattern jacks 33. Jacks in each wheel have butts 39 at different levels to engage the tracks of the bands 26. Four cams 49 are vertically movable in the wheel by tracks 68a, b, and are lowered by tracks b to engage selected jacks and then raised so as to press the needle jacks 36. In another embodiment, groups of perforations for each device are arranged one after another in a single track. The jacks all carry butts 45 at one level. Once the desired pattern has been set up in each wheel the cams 49 are kept in the top track 68a by a pivoted gate, closing entrance to the bottom track. The set pattern is thereby repeated.
Patent GB-218370-A (GB)
Title: Method of and apparatus for automatic control
IPC: F16K31/126
Filed: 1923-03-29
Abstract: 218,370. British Arca Regulators, Ltd., and Lindsay, T. March 29, 1923. Fluid actuation. - A power device for operating electric switches or rheostats, of the type in which the main regulating device is operated by the pressure of a non- compressible fluid continually issuing from a discharge aperture and trolled by a cup or the like adapted to move freely towards or away from the discharge aperture is arranged so that the actuating pressure acts directly on the upper surface of a flexible diaphragm directly connected to the main regulating device. The Figure shows the application of the invention to the actuation of a valve. The main valve is detachably connected by means of a nut 20 to the actuating spindle which is coupled to a diaphragm 12 loaded by a spring 7 bearing against an abutment 11. Fluid pressure is supplied to the chamber above the diaphragm through a connection 18a provided with a cleaning pin of the kind described in Specification 199,024, [Class 69 (ii), Hydraulic presses &c.]. The diaphragm casing is connected to the valve casing by pillars 19 adapted to engage alternative holes in the valve casing so that the latter together with the valve member may be inverted so that the spring tends to open instead of close the spring valve. Insulating bushes, washers &c. of fibre are inserted between various parts of the apparatus to prevent conduction of heat. Specification 116,074 also is referred to.
Patent GB-1007320-A (GB)
Title: Process and apparatus for producing polylactam films
IPC: B29D7/01
Filed: 1964-03-04
Abstract: 1,007,320. Making polylactam films. POLYMER PROCESSES Inc. March 4, 1964 [March 15, 1963], No. 9132/64. Drawings to Specification. Heading B5B. Polylactam (Nylon) films are made by effecting polymerization of a lactam monomer in a mixture of the monomer, a polymerization catalyst and a polymerization promoter and, at the point when the viscosity of the mixture has increased but the mixture is still flowable, applying the mixture to a filmforming or casting surface and flowing the mixture into the form of a sheet in the filmforming or casting surface and completing the polymerization of the mixture by heating it while it is in contact with the casting surface. The lactam monomer preferably contains 6 to 20, more preferably 6 to 12 carbon atoms in the molecule, the catalyst is anionic and is preferably a Grignard compound, or an alkali metal or an alkali metal hydride. Preferable promoters are isocyanates and N-substituted imides. The film-forming surface may comprise a moving smooth metal surface, such as the peripheral surface of a rotating metal drum or the surface of an endless metal belt, and the formed nylon film may be continuously stripped from the surface. The shaping of the film is preferably completed prior to the formation of spherulites in sufficient quantity to cause volume fixation of the polymerizing mass. The lactam may be epsilon-caprolactam. The temperature of the mixture initially deposited on the film-forming surface may range from about 110‹ to 200‹. The film is preferably formed under anhydrous conditions and in the presence of an inert gas. The film may be passed through a quenching bath after being stripped from the drum or endless belt. Lists of lactam, anionic polymerization catalysts and promoters are given in the Specification. Specification 914,022 is referred to.