baber/WOPTO huggingface dataset:
Patent GB-468991-A (GB)
Title: Improvements in spherical cocks
IPC: F16K5/20
Filed: 1936-06-30
Abstract: 468,991. Rotary spherical valves. JAUSSAUD, R. M. June 30, 1936, No. 18127. Convention date, July 10, 1935. [Class 135] In a through - way rotary spherical valve comprising a spherical closure plug 2 which is either eccentric or bodily displaceable with respect to the axis about which it turns and has a diametral passage 4 of the same width as inlet passage 5, proper seating of the plug to ensure a fluidtight connection in the closed position is obtained by forming that part of the plug which engages the 'seat 7 as a separate universally mounted cap or segment 8 as shown in Figs. 1, 2 or alternatively by forming the seat as separate ring 8a mounted ball-andsocketwise in the valve casing as shown in Fig. 6. The plug 2, Figs. 1, 2, is supported by two pivots 3 whose axes are displaced an amount # from the centre of the spherical plug 2. The upper pivot 3 is non-rotatably connected to a disc valve 9 spring-pressed against a cap 12. In the closed position of the plug 2, holes 10 in the valve 9 register with corresponding holes in the cap 12 to allow fluid to be drained or vented from the outlet 6. In a modification, the lower pivot 3 is connected to the plug by blade springs so that the plug is resiliently forced to its seating. In Fig. 6, the turning and seating movements are effected by separate handles 15, 16. The Specification as open to inspection under Sect. 91 comprises also a cock with a cap 8, Fig. 7 (Cancelled) universally mounted on an eccentric tubular pivot 3a serving as the outlet. This subject-matter does not appear in the Specification as accepted.
Patent GB-276800-A (GB)
Title: Improvements in or relating to boot sole channelling machines
IPC: A43D43/02
Filed: 1926-07-21
Abstract: 276,800. Gimson Shoe Machinery Co., Ltd., and James, C. H. July 21, 1926. Traversing-cutter machines.-In a machine for channelling boot soles the depth of cut of an oscillating or reciprocating channelling knife 2 is varied according to the sole thickness as determined by a gauge 16. The sole 28 is supported on a bed 29 and the knife 2 is adjustably secured to a spring urged bar 3 pivoted on a pin 23 to a lever 21. The gauge 16 contacts with the surface of the sole and is adjustably connected to a pivot 24 on the lever 21. The latter is hinged to a bracket 1 pivoted on a pin 25 with a lever 26 hinged to the frame on a pin 27. On release of a treadle the mechanism swings about the pin 27 to a position determined by a screw 30 and the knife 2 is moved through the lever 21 according to the position of the gauge 16. The knife and the gauge are oscillated about the pin 25 by known means. The knives and gauge may be duplicated or two knives may be controlled by a single gauge.
Patent GB-453242-A (GB)
Title: Improvements in or relating to control apparatus operated by relays constituted by tuned vibrating blades
IPC: H01H51/32
Filed: 1935-06-26
Abstract: 453,242. Electromagnetic switches. COMPAGNIE POUR LA FABRICATION DES COMPTEURS ET MATERIEL D'USINES A GAZ, 12, Place des Etats-Unis, Montrouge, Seine, France. June 26, 1935, No. 18323. Convention date, Nov. 15, 1934. [Class 38 (v)] [See also Group XXXVIII] In apparatus wherein control is effected in response to the operation of any one of a plurality of resonance springs a speed-responsive clutch is employed between the driving and driven members in order to prevent operation of the driven member by frequencies other than the correct frequencies. As shown, tuned reeds, 5, 6 operated by an electromagnet 3 control ratchet wheels 7, 8 mounted on a shaft 9 carrying springs 11 which at a predetermined speed of the ratchets move outwardly and engage notches 14 on a member 12 to drive a shaft 13 and, through gearing 15 ... 18, the controller shaft 19. Weak vibrations of the springs 5, 6 drive the wheels at a speed which is insufficient to couple the shafts 9, 13, but upon response to the correct frequencies, the coupling is effective and shaft 19 is driven. The shaft 19 carries pins 20, 21 one or other of which disengages the active spring after a predetermined amount of movement. Any number of resonance springs, for effecting corresponding control movements, may be employed; moreover instead of the coupling device 11, 12, the ratchet wheels may be loosely mounted on shaft 9 and arranged so that the coupling between the rachets and shaft is effected only by centrifugal force.
Patent GB-330769-A (GB)
Title: Improvements in or relating to circuit-arrangements for generating high-frequency oscillations
IPC: H03B5/18
Filed: 1929-06-14
Abstract: 330,769. Dicker, S. G. S., (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). June 14, 1929. Thermionic generators. -In a circuit for generating very high frequencies by means of a Lecher system 5, 6 connected to a thermionic valve 1. the feeding-points 14, 15 to the grid 3 and anode 4 are located outside nodal points of the Lecher system so that no alternating voltages exist between the feeding-points and the cathode 2.
Patent GB-1375788-A (GB)
IPC: C07D319/12
Filed: 1972-04-20
Abstract: 1375788 Purification of 4,4-dimethyldioxane- 1,3 solution VESESOJUZNY NAUCHNOISSLEDOVATELSKY INSTITUT NEFTEKHIMICHESKIKH PROTSESOV 20 April 1972 18484/72 Heading C2C A mineral acid and formic acid are separated from an aqueous reaction liquid formed in the synthesis of 4,4-dimethyl dioxane-1,3 from isobutene and formaldehyde in the presence of a strong mineral acid by subjecting the reaction liquid to a two-step electrodialysis. Any residual acid may be removed by means of an ion exchange resin.
Patent GB-352688-A (GB)
Title: Process for the manufacture of acetylene by pyrogenation of methane gas
IPC: C07C2/76
Filed: 1930-06-17
Abstract: Hydrogen and carbon black are obtained in a process for the manufacture of acetylene and ethylene by pyrogenation of methane characterized by the combined use of high temperatures of 950-2000 DEG  C., of an absolute or partial pressure of methane varying from atmospheric pressure at the lower limit to 25 mm. of mercury at the upper limit of this range of temperature, of a duration of heating decreasing with rise of temperature, of a continuous removal of the gases by suction and of a given relation between the surface and volume of the pyrogenation apparatus ranging from 3 : 1 for the lowest temperatures to 30 : 1 for the highest temperatures and being preferably 10 : 1 for temperatures of about 1500 DEG  C., the surface and volume being measured in square centimetres and cubic centimetres respectively.  A halogen or a volatile halogen compound may be employed as catalyst.  The Specification as open to inspection under Sect. 91 (3) (a) comprises also the use of other catalysts, solid, liquid or gaseous, quartz, carbon, carborundum and refractory products being specified.  This subject-matter does not appear in the Specification as accepted.ALSO:Acetylene, together with ethylene, hydrogen, carbon black and liquid hydrocarbons, is manufactured by the pyrogenation of methane, the process being characterized by the combined use of high temperatures from 950-2000 DEG  C., of an absolute or partial pressure of methane varying from atmospheric pressure at the lower limit to 25 mm. of mercury at the upper limit of this range of temperature, of a duration of heating decreasing with rise of temperature, of a continuous removal of the gases by suction and of a given relation between the surface and volume of the pyrogenation apparatus ranging from 3 : 1 for the lowest temperatures to 30 : 1 for the highest temperatures and being preferably 10 : 1 for temperatures of about 1500 DEG  C., the surface and volume being measured in square centimetres and cubic centimetres respectively.  A halogen or a volatile halogen compound may be employed as catalyst. A table is given of the pressure, duration of heating, and yield of acetylene at various temperatures and examples describe the carrying out of the process at 1500, 1400, and 1200 DEG  C.  The Specification as open to inspection under Sect. 91 (3) (a) comprises also the use of other catalysts, solid, liquid, or gaseous, quartz, carbon, carborundum and refractory products being specified.  This subject-matter does not appear in the Specification as accepted.
Patent GB-242338-A (GB)
Title: Improvements in electric fuses
IPC: H01H85/08
Filed: 1924-08-05
Abstract: 242,338. Hope, V. Aug. 5,1924. Electric fittings.-A fuse composed of a strip of copper or other metal having its cross-section reduced at one point, the reduced part being bridged by a metal of low fusing point, such as tin, as described in Specification 217,625, [Class 38 (i), Electric couplings &c.], has the tin &c. formed as a blank and inserted in a hole cut in the strip of copper &c. The blank B may be secured to the strip A by forming a flange a<3> around the hole and the contact between the two metals may be improved by soldering or pressing. The operation may be performed by a heated die F Fig. 7, that melts and presses the tin &c. in a mould E and coacts with a base C' the surface of which is grooved to allow escape of air. The blank is afterwards treated in a fly-press. The conductivitity between the strip and the blank may be improved by electroplating copper upon the surface of both, drainage holes being formed in the covering to allow the tin &c. to escape when fused. The strip is reduced in cross-section at other points by forming holes C, D therein. According to one Provisional Specification the reduced cross-section at intermediate points is produced by using a thin strip and thickening the other parts by electrodeposition of copper. According to the other Provisional Specification the strip may be built up of laminµ.
Patent GB-869272-A (GB)
Title: Improvements in or relating to butterfly valves
Inventor: LIVINGSTON ALEXANDER CUNNINGHA
IPC: F16K1/228
Filed: 1956-06-15
Abstract: 869,272. Valves. GLENFIELD & KENNEDY Ltd. June 14, 1957 [June 15, 1956; May 10, 1957], Nos. 18571/56 and 14896/57. Class 135. In a butterfly valve in which the spindle 6 is oblique to the plane of the closure disc 1 an inflatable sealing diaphragm 4 is disposed in a diametral plane in the cylindrical pipe 3 to provide a continuous surface for engagement by the periphery of the disc. Pressure fluid for inflating the member 4 is obtained from a source upstream of the valve. The member 4 should only be inflated when the closure is in the shut position ; upon deflation the member 4 is not contacted by the closure during any movement thereof. Specification 782,836 is referred to.
Patent GB-266208-A (GB)
Title: Illuminated top
IPC: A63H1/24
Filed: 1926-07-26
Abstract: 266,208. Arnold, C. Feb. 22, 1926, [Convention date]. Tops for spinning on surfaces; illuminating toys. - Spark - - producing means are disposed within the body a of a top, the sparks being visible through coloured windows f. The spark-producing means comprise blocks i of cerium iron mounted on levers h and adapted frictionally to engage an emery band g formed integral with the body of the top. The levers h are pivoted to a plate k supported by a stationary sleeve m. The spindle c passes through the sleeve m, excessive vibratory movement of the spindle relative to the sleeve being prevented by an apertured plate n fixed to the sleeve. Stops l are provided to limit the movement of the levers h.
Patent GB-718711-A (GB)
Title: Production of dixylyl phthalides
Inventor: CLAR ERIC
IPC: C07D307/87
Filed: 1951-08-08
Abstract: Dixylyl phthalides are prepared by reacting a preformed complex of aluminium chloride and asymmetrical phthalyl chloride (prepared by heating symmetrical phthalyl chloride with aluminium chloride) with xylene.  Preferably an excess of aluminium chloride is used in the formation of the complex and the reaction with xylene is carried out in the presence of this excess aluminium chloride and also in an excess of, for example, 70-200 per cent of xylene which acts as a solvent.  m-Xylene is the most reactive and o-xylene is least reactive of the xylene isomers.  When the complex is reacted with a mixture of xylenes in which the most reactive xylene is present in excess of 2 mols. for each mol. of complex the dixylyl phthalate corresponding to the most reactive xylene is formed preferentially. The reaction is suitably carried out by allowing the reaction mixture containing the complex and xylene to stand at 15-20 DEG  C. for 20-200 minutes and then heating to 40-100 DEG  C., preferably 50-70 DEG  C.  In examples: (1) a complex of asymmetrical phthalyl chloride and aluminium chloride is reacted with m-xylene to give di-m-xylyl phthalide; (2) di-p-xylyl phthalide is prepared as in (1); and (3) an excess of a mixture of m-and p-xylenes is reacted with the phthalyl chloride-aluminium chloride complex to form di-m-xylyl phthalide. Dimethylbenzoyl-benzoic acids are formed as by-products in the above condensations.
Patent GB-530546-A (GB)
Title: Improvements relating to twist mechanism for rock drills
IPC: E21B6/06
Filed: 1939-06-27
Abstract: 530,546. Percussive rock drills. CHICAGO PNEUMATIC TOOL CO. June 27, 1939, No. 18672. Convention date. July 30, 1938. [Class 124] In a rock drill provided with a valve controlled hammer piston 9 engaging a rifle bar 11 having pawls 21 engaging a ratchet ring 22 for effecting a step by step rotation of the piston and drill steel, the ratchet ring is releasably locked against rotation by a locking ring 29 moved axially out of engagement with the ring by yieldable means and urged into locking position by fluid pressure when desired. The rotating mechanism may thus be put out of action when starting a hole or when the drill sticks therein. The ratchet ring 22, which is internally toothed to engage the pawls 21, is mounted in a ring 23 held by bolts between the valve cap 25 and a disc 26 in the back head 12, the ring 23 being secured against rotation by a key 24. The rear edge of the ring 22 is provided with ratchet teeth 28 to engage similar teeth in the locking ring 29. The ring 29 is normally pressed out of contact with the teeth 28 by spring plungers 30, so as to leave the ring 22 free to rotate and thus rendering the rotating mechanism ineffective. The locking ring 29 is pushed forward to engage the teeth to render the rotating mechanism effective by pins 31 and plungers 32 operated by fluid pressure passing from a throttle valve 37, in position shown in Fig. 1, through port 43 recess 42, and ports 40, 34 to the rear of chambers 33. The forward ends of the chambers 33 are connected to a vent 36. In order to free the ring 22, the throttle valve is turned through 180 degrees when the chambers 33 exhaust through ports 40, recess 44 and port 39. In both these positions of the throttle 'valve pressure is supplied to the chest 14 of the distributing valve 15 in order to reciprocate the former piston, through ports 45, 46, between the pawls and ring 22, recess 48 and port 49. By an intermediate adjustment of the valve 37 the supply of fluid pressure may be. cut off entirely.
Patent GB-942139-A (GB)
Title: Improvements in loaders
Inventor: ILES GEORGE ARTHUR
IPC: E02F3/34
Filed: 1960-05-26
Abstract: 942,139. Platform elevators on vehicles. WESTERN ENGINEERING (DELABOLE) CO. Ltd. Aug. 28, 1961 [May 26, 1960], No. 18706/60. Headings B8E and B8H. An agiricultural loader comprises a parallelogram frame 13, pivoted between a luffing parallelogram frame 5, which is pivoted to the base frame 1, 4, and a load carrying fork or platform 15, and a pair of links 23 are pivoted between the uprights 4 and the frame 13. The frames 5, 13 are each pivoted to a frame 7 comprising uprights 8, cross-members 9 and bracing members 11 and an hydraulic luffing ram 27 is pivoted between the base frame and a cross-member 9. The fork 15 is connected by struts 21 to a pivot 20 on a frame 14 at the outer end of the frame 13 to allow the fork to pass over undulations in the ground, the swinging movement of the fork being limited by stops 22. The loader may be pivoted to the side of a trailer 40 or attached to the side of a tractor. In a modification (not shown) the loader may be supported independently by wheels or wheels and legs and may be provided with its own hydraulic pressure supply and motive power.
Patent GB-852638-A (GB)
Title: Improvements in or relating to coating articles with plastic materials
Inventor: FREEMAN PETER GEOFFREY
IPC: B05C19/02
Filed: 1956-06-15
Abstract: <PICT:0852638/III/1> Pre-heated articles are dip-coated by immersing them in a fluidized mass of powdered thermoplastic material having a melting point below the temperature to which the articles are heated, the material being fluidized by a gas which flows thereinto in a direction which is changed from instant to instant, whereby the tendency of the gas to flow in relatively few discrete paths through the material is substantially avoided.  The powdered material e.g. polyethylene may be contained in an upper compartment 1 which is separated from a lower compartment 2 by porous tiles 3, or other suitable porous material, compressed air being supplied through a pipe 5 and passing through the tiles 3 to maintain the powder in suspension.  Paddles 6 are reciprocated across the gas stream by means of a link 7, slide 8, connecting rod 9 and crank 10, which is driven by an electric motor; or a pneumatic device coupled to the fluidizing gas supply, may be used.  The paddles, which may be plain, corrugated or perforated, may be arranged in tiers which may be reciprocated or given a rotary movement in the same or different directions.  A honeycomb structure may replace the paddles. Alternatively, the container may be rocked about a vertical axis, the body of the fluidized mass remaining approximately stationary.  The method may be operated continuously for dip-coating articles in succession and for treating elongated articles. p  Reference has been directed by the Comptroller to Specification 759,214.
Patent GB-999089-A (GB)
Title: Improvements in and relating to laboratory tables
IPC: A47B3/12
Filed: 1964-05-06
Abstract: 999,089. Tables; furniture joints. EERSTE WADDINGSCREENSCHE STOOMMEUBELFABRIEK V/H VAN SHAIK & BERGHUIS N.V. May 6, 1964 [May 7, 1963], No. 18781/64. Headings A4H and A4W. A laboratory table comprises a top 10 mounted on spaced metal H-frames 1 of box section, wherein transverse channels 11 or 28 secured to the underside of the top 10 carry lugs 12 which engage in the open upper ends of the H-frame legs 6 to be locked by screws 13 and the H- frames 1 are interconnected by tubes 2 each having at one end anembedded stud 3 and at the opposite end a nut 3, the arrangement being such that the studs 3 extend through apertures in the cross-bar 5 of the H-frame 1 to engage nuts 4 of aligned tubes 2 or, in the case of end H-frames 1, separate studs 8 and nuts 9 engage the tube nuts 4 and studs 3. A cupboard 19 or shelves may be carried between adjacent frames 1 by bolts passed through apertures 20 in the frame legs 6 and a drawer may be provided between the cupboard 19 and the table top 10. Feet 21 are adjustably threaded 22 into the legs 6 to vary the height of the table. A strip member 24 carrying accessories 25 and supporting conduits 26 may be provided at the rear of the table top 10, as shown in Fig. 3, or between a pair of table tops (Fig. 4, not shown).
Patent GB-494041-A (GB)
Title: Improvements relating to siphon bottle heads
IPC: B67D1/04
Filed: 1937-07-07
Abstract: A siphon bottle head is produced from a tube of an iron alloy containing 18 per cent of chromium, 2-2,5 per cent of nickel, and small amounts of manganese, silicon, and carbon.
Patent GB-561197-A (GB)
Title: Hydrocolloid moulding composition and material for use therein
IPC: A61K6/90
Filed: 1942-04-10
Abstract: Dental moulding properties &c. of hydrocolloids, e.g agar-agar, are improved by adding a slightly alkaline aqueous dispersion of an oxide or hydroxide of an amphoteric metal, e.g. tin, zinc, manganese or aluminium, and a finely-divided, water-insoluble inorganic filler, e.g. calcium sulphate, precipitated calcium carbonate, or magnesium carbonate.  A borate, e.g. calcium metaborate may also be included. The hydroxide may be formed by precipitation from an acid salt solution such as tin sulphate or chloride by adding an alkaline compound of an alkali metal, and may be peptized by potassium hydrate.
Patent GB-242008-A (GB)
Title: Improvements in electro-mechanically operated electric switch devices
IPC: H02P1/08
Filed: 1924-08-08
Abstract: 242,008. English Electric Co., Ltd., and Zweigbergk, T. Aug. S. 1924. Controllers, actuating mechanism for. - Relates to electromechanically operated switch devices particularly switches under remote control which have to be brought, selectively, into one of a number of effective positions, for example, a reverser in an electric motor traction equipment which requires to be placed in either the forward or reverse running position according to the position of the handle under the control of the driver, consists in actuating the reverser or other switch through an intermediate lever 7 which is automatically positioned by the electromagnets 20, 21 so as to engage the roller 41 or the roller 42 ready to drive the reverser one way or the other as described in Specification 224,991, but, instead of driving the intermediate member positively through a motordriven cam, the motor-driven cam 5 drives a lever 1 having a fixed pivot at 2 and a connection to the lever 7 at 6 so as to bias the spring 9, and the intermediate member is driven by the spring 9 when the cam is moved away from the roller 8. In this way since the driving force is only that of the spring no damage results if an obstruction stops the action of the mechanism during an operating stroke. The movement of the cam shaft is interlocked with that of the setting device by arranging in the motor circuit driving the cam a two-way switch 33, 34, 36 so that the motor is supplied with current only when the setting movement brought about by the armature 17 or 18 is completed. Specifications 141,816, 152,490, and 175,877 also are referred to.
Patent GB-830343-A (GB)
Title: Improvements in belting
IPC: F16G1/04
Filed: 1956-07-19
Abstract: 830,343. Belting fabrics. LEWIS & TYLOR Ltd., and LAWSON, N. Oct. 21, 1957 [July 19, 1956], No. 18977/56. Class 142(4) [Also in Groups XIII and XXV] Belting comprises a woven base 13, preferably with rayon warp yarns and cotton weft, having incorporated in one or both longitudinal edges, open loops, for example wire helices 15, or tubular cotton card with or without a case of nylon, polyvinyl, chloride or metal wire, held in the fabric by the weft, or wire hooks inserted after weaving, and a flexible coating, preferably of polyvinyl chloride in which the loops are embedded. Preferably, the polyvinyl chloride is applied to the edges and partly gelled in known infra-red apparatus, the whole belt then being coated with polyvinyl chloride and gelling completed. According to the Provisional Specification, only the edges of the belting are covered with the resilient coating.