baber/WOPTO huggingface dataset:
Patent GB-466584-A (GB)
Title: Improvements relating to telephone transmitters, particularly suitable for forming part of hand-microtelephones
IPC: C23C2/00
Filed: 1935-12-02
Abstract: 466,584. Microphones. SIEMENS BROS. & CO., Ltd., and SUTTON, G. W. Dec. 2,1935, No. 33354. [Class 40 (iv)] In a hand-microtelephone having a transmitter cover provided with apertures leading . to the interior, the cover is formed with a smooth surface over which the speaker's breath sweeps without being guided into the interior, and the apertures take the form of passages which have a sufficient slope backwards to prevent reflection of 'the breath into the interior. The cover 1 has inwardly and upwardly inclined slots 6 leading to a chamber 4 communicating with a further chamber in front of the diaphragm by an aperture 5 in a separator member 2. The transmitter inset is of the type comprising a diaphragm having a central conical portion connected by a flat annular portion to a further portion having the form of a frustum of a cone, as described in Specification 308,630, [Class 40 (iv)], and the separator 2 is formed with an upstanding portion 3 to engage the flat annular portion of the diaphragm. The cover 1 may be fixed to the inset container in the manner described in Specification 328,926, [Class 40 (iv)].
Patent GB-903542-A (GB)
Title: Improvements in hydraulic pumps
IPC: F04B3/00
Filed: 1958-10-20
Abstract: 903,542. Reciprocating pumps. DELLER, A. W. Oct. 20, 1958 [Oct. 21, 1957], No. 33434/58. Class 102(1). A reciprocating pump of the type in which pairs of pistons reciprocate in a common cylinder, as described in Specification 903,543, one piston of each pair is driven by a shaft 3 while the other pistons of each pair is driven by a shaft 6. The shaft 3 is driven from a motor and drives the shaft 6 through an endless chain 5 which passes over sprockets 4, 4a secured to the shafts, idler sprockets 31a, 31b, 31c, 31d, rotatable on fixed shafts, and sprockets 32a, 32b mounted on shafts carried by an adjustable slider 33a, 33b. Adjustment of the slider by a screw 38 or by suitable hydraulic apparatus varies the phase relationship between the shafts 3, 6 and hence the pump delivery. Specification 508,703 also is referred to.
Patent GB-496525-A (GB)
Title: Improved means for feeding liquid fuel to the vaporizers of stoves, lamps, cookers, or the like
IPC: F24C5/18
Filed: 1937-12-03
Abstract: 496,525. Fuel pumps. EHRICH & GRAETZ AKT.-GES. Dec. 3, 1937, No. 33539. Convention date, Dec. 3, 1936. [Class 102 (i)] [Also in Group XI] The hot gases rising from a vapour burning stove, cooker, or incandescent lamp rotate a vaned wheel to drive positively a pump feeding liquid fuel to the burner vaporizer. In the apparatus shown the vaned wheel 38 has a cranked spindle 39 operating by a connecting rod 43 and a bell-crank lever 45 a reciprocating plunger 10 in a cylinder 3 fitted with suction and delivery valves 8, 12. Liquid fuel is consequently drawn up through a pipe 6 from the reservoir 1 and delivered through a chamber 13 and pipe 14 to the vaporizing tube 15 of the burner. The burner may be extinguished by opening a valve 32 allowing the fuel in the tube 15 to be returned to the reservoir 1. Fuel escaping past the plunger is trapped in a sleeve 49 and returned to the reservoir by a pipe 50. The spindle 39 is formed in two parts having a separate coupling 40. The pump and vapour burner are mounted on a plate 2 resting on and removable from the reservoir 1. The burner is stated to operate with fuel supplied at a pressure of from <1> /4 to <1> /5 of an atmosphere.
Patent GB-362619-A (GB)
Title: Apparatus for cleaning metal strip
IPC: C23G5/04
Filed: 1930-11-07
Abstract: <PICT:0362619/III/1> Flexible metal strip is degreased by passing the strip in a path of reversing direction whereby each side of the strip is exposed to a shower of solvent.  The metal strip enters the tank 1 through a slot 10 and passes around pulleys 7, 8, 9 and leaves the tank through a slot 11.  Trichlorethylene or other volatile solvent 2 is vaporized by a gas burner 4, contained in the jacket 3, and the vapour rises and is condensed by cooling coils 12, 13 to form a shower.  The outlet slot 11 may be provided with brushes to remove dust from the degreased strip.
Patent GB-1151606-A (GB)
Title: Separation of Xylenes
Inventor: LUMSDEN JOHN
IPC: C07C7/152
Filed: 1967-02-01
Abstract: 1,151,606. Separating xylenes. IMPERIAL SMELTING CORP. (N.S.C.) Ltd. 29 Jan., 1968 [1 Feb., 1967; 21 July, 1967], Nos. 4888/67 and 33647/67. Heading C5E. m-Xylene is separated from p-xylene by adding to a liquid mixture of m-xylene and pxylene, in which the m: p ratio is more than 70: 30, an aromatic substance which forms solid molecular complexes with m-xylene where there is no specific bond to any particular carbon atom, and adjusting the temperature so as to precipitate and remove said complex. The aromatic complexing substance may be a fluorinated benzene, e.g. perfluorobenzene or 1,3,5-trifluoro-2,4,6-trichlorobenzene, or pyromellitic dianhydride. Solvents, such as alcohols, ketones and aliphatic hydrocarbons, which have a b.p. substantially different from both the xylenes and the aromatic substance may be present. A solvent suitable for use in conjunction with perfluorobenzene is methylcyclohexane.
Patent GB-407785-A (GB)
Title: Improvements in boxes and like containers for face and toilet powders
IPC: A45D33/00
Filed: 1932-11-30
Abstract: 407,785. Powder-boxes; powder-puffs. LAUGHTON, G. A., Alexandra Works, Kent Street, Birmingham. Nov. 30, 1932, No. 33857. [Class 18.] In a powder-box of the kind comprising two shells hinged together and fastened by a catch, one shell carrying an inner container d with an apertured cover f, the latter is provided with a depending flange which slidably engages the vertical wall of the container, and the aperture in the cover is central, surrounded by a relatively large inclined part h, and formed with an inturned edge j. The container d is a push-in fit against a flange e on the shell, or it snaps into engagement with tongues or ribs on the lip of the flange. The lid shell is fitted with a mirror. A powder puff to seal the aperture in the cover f comprises a backing member, a fluffed front, and an inner pad of wool, felt, cottonwool, &c.
Patent GB-993647-A (GB)
Title: Improvements in and relating to sultones
IPC: C07D327/04
Filed: 1963-08-28
Abstract: In a process for the preparation of sultones, butadiene or isoprene is treated with an addition product of sulphur trioxide and a ketone or ether, the product is hydrolysed to give an unsaturated hydroxy sulphonic acid, which is then hydrogenated and converted by elimination of water into a sultone.  The sulphonation may be conducted in an inert organic solvent at a temperature between - 70 DEG  and 100 DEG  C., preferably - 10 DEG  to 50 DEG  C. The unsaturated hydroxysulphonic acid may be hydrogenated in water either as a neutral salt, when the final product is the 1,4-butanesultone, or as the free acid, when the 1,3-butane sultone apparently results. Organic solvents, e.g. alcohols or acetic acid, may also be used for the hydrogenation, for which the usual catalysts, e.g. Raney nickel, platinum or palladium, are effective. The water may be split off from the saturated hydroxysulphonic acid during distillation, and the free acid for this purpose may be obtained from the salt by the action of a strong acid or an acid ion exchanger.  In Examples 1 and 2, one mole of diene in ethylene chloride is added to one mole of SO3/dioxan in ethylene chloride at about 0-35 DEG  C.; water is then added and then barium hydroxide, after which the barium salt solution is reduced with Raney nickel and hydrogen at 1 or 40 atmospheres and then passed over an acid ion exchanger and distilled. In other procedures sodium, potassium, ammonium or calcium hydroxide is used instead of barium hydroxide (Examples 3, 4 and 8), dichlordiethyl ether replaces dioxan (Example 5), hexane replaces ethylene chloride (Example 6), the free acid is hydrogenated with Pd(OH)2/charcoal and H2 at 150 DEG  C. and 200 atm. (Example 7), the SO3/dioxan is added to the diene (Examples 9, 10, 11), a half molar quantity of diene is used (Examples 11 and 12), the diene is passed as gas into the SO3/dioxan (Example 13), and the sulphonation is conducted at a higher temperature (35-80 DEG  C.) (Example 14).
Patent GB-1402018-A (GB)
Title: Axially-sliding-vane rotary compressor
IPC: F04C18/344
Filed: 1972-07-20
Abstract: 1402018 Rotary positive-displacement fluidmachines A A SAVIKURKI 20 July 1972 34077/72 Heading F1F A compressor has vanes 17 engaging with frusto-conic helical surfaces 9 on casing end-blocks 1, 2 and sliding axially in a rotor 4 with corresponding frusto-conic surfaces 10, 11, a tapering inlet 22 for the working fluid and an outlet 24 for said fluid being formed in each of the surfaces 9 on opposite sides of the part of the surface nearest the rotor, and the outlets being shorter than the inlets in the direction of rotor rotation. The vanes may extend into grooves 15, 16 in an axle 3 and a cylindrical mantle 13. Lubricant may be introduced through a bore 19 and channels 20. Cooling oil or air may be injected through an inlet 28 in each surface 9. The vanes may be rendered concavo-convex in the axial direction, Fig. 6 (not shown). In a second embodiment, Figs. 11 and 12 (not shown), compression is effected in two stages on opposite sides of the rotor, the radial dimensions of the surfaces 9 differing accordingly.
Patent GB-865831-A (GB)
Title: Process for the production of alkynols and alkyndiols
Filed: 1958-10-24
Abstract: Alkynols and alkyndiols are produced by reacting acetylene or a mono-substituted acetylene with a suspension of potassium hydroxide in an inert hydrocarbon solvent boiling in the range 100 DEG -180 DEG C., the potassium hydroxide having a water content of at most 13% by weight, adding a ketone to the reaction mixture, hydrolysing the resulting mixture and working up the organic layer to give an alkynol and/or alkyndiol.  If desired, the ketone may be added to the mixture while the introduction of the acetylene or acetylene derivative is continued.  The first stage of the process takes place at a temperature of 0 DEG -130 DEG C. and the ketone is added at a temperature of -10 DEG C. to 80 DEG C.  Suitable hydrocarbon solvents are, for example, toluene, ethyl benzene, cumene, cymene, xylenes, decahydronaphthalene, octane, decane and gasoline fractions boiling in the range 100-180 DEG C.  A suitable mono-substituted acetylene is, for example, vinyl acetylene and examples of suitable ketones are acetone, methylethyl ketone, diethyl ketone, methyl isobutyl ketone and pentan-2-one.  Excess water may be removed from the potassium hydroxide by heating with the solvent.  Examples are given of the preparation of 2-methyl-3-butyn-2-ol, 1: 1-diethyl-2-propyn-1-ol and 2-methyl-4-vinyl-3-butyn-2-ol.  Smaller amounts of 1.1.4.4-tetramethyl-2-butyn-1.4-diol are also formed along with the 2-methyl-3-butyn-2-ol.
Patent GB-521722-A (GB)
Title: Improvements in or relating to fuel injection systems or devices for internal-combustion engines
IPC: F02M47/02
Filed: 1938-11-24
Abstract: 521,722. Fuel-injection devices. AMERY, G. Nov. 24, 1938, No. 34225. [Class. 7 (iii)] In a fuel injector comprising a, valve controlled by fluid pressure acting on opening and closing pistons by means for periodically varying the pressure acting on. the opening-piston, a spring is provided for assisting the opening action. Fig. 1 shows a fuel-injection valve 17 in connection, by means of members 22, 29, 30, with a piston 28, the upper face of which is supplied with fuel pressure admitted at 32 for closing the valve, and the lower face with fuel pressure admitted by a distributor and connection 39 to exert an opening- force on the valve, this force being assisted by a spring 36. A closing- spring 21 also acts between an adjustable abutment 20 and the member 22. A drainage 'outlet is provided at 41. In a modification, the pressure acting on the underside of the piston 28 also acts on a slide valve which cuts off the supply of fuel to the nozzle, by way of passages 33, 34, 35, when the injection valve is closed. Specifications 443,124, 468,360, 501,588, 501,632, 501,633, [Group XXVIII], and 521,736 are referred to.
Patent GB-1243644-A (GB)
Title: Improvements in or relating to vehicle simulators and blind vehicle navigation systems
Inventor: BLUMFIELD DAVID
IPC: G09B9/32
Filed: 1968-07-18
Abstract: 1,243,644. Flight simulators; vehicle simulators. ELLIOTT BROS. (LONDON) Ltd. 17 Oct., 1969 [18 July, 1968], No. 34257/68. Headings B7H and B7W. [Also in Division G2] An optical projector for use in vehicle or aircraft simulators comprises a transparency 16 in a gimbal mounting 22 such that the transparency may be tilted about mutually perpendicular axes transverse to the optical axis ON by means of servomotors 24, 26. Projection lens 18 is similarly mounted and tiltable to keep its focal plane coincident with the transparency by means of servomotors 28, 30. The servomotors are computer-controlled in response to the simulator controls.
Patent GB-507424-A (GB)
Title: An improved closure for bags, satchels and like receptacles
IPC: B65D79/02
Filed: 1937-12-11
Abstract: 507,424. Bag fastenings. COCKER, F.H. Dec. 11, 1937, No. 34331. [Class 44] A bag fastening, which may also indicate the time of fastening or releasing, comprises a twopart metal casing 7, 8 the part 7 having projections 71 at one side which engage in recesses in part 8 and carrying a spring-pressed latch 10 which engages under a projection 12 on part 8. The casing presents an elongated recess 14 having a lateral slot 16 and open end 15. The mouth of the bag 17 has thickened edges 18, as by strips of metal enclosed in a hem, which are passed through opening 15 into recess 14 as in Fig. 3 and are retained therein by a self-locking slide 20 adapted to cover opening 15. When slide 20 is moved to closed position it carries with it a spring-loaded sliding rod 24 within the casing, and it is retained by a spring-loaded plunger 26 engaging behind the end of rod 24. The casing may enclose a time-piece 29 with a starting or stopping lever 28 operated automatically by the shooting of plunger 26. Slide 20 can be withdrawn only after opening the casing. Opening is effected by inserting a suitable key through an aperture 32 into engagement with an apertured projection 33 carried by the latch and operating to withdraw the latch. A paper seal carried in guides 34 may cover aperture 32.
Patent GB-352365-A (GB)
Title: Improvements in or relating to the windings of dynamo-electric machines
IPC: H02K3/50
Filed: 1930-11-14
Abstract: 352,365. Coils of dynamo - electric machines. SIEMENS - SCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. Nov. 14, 1930, No. 34335. Convention date, Feb. 15. [Class 35.] Stator windings are secured in position by lapping tape continuously round the coil ends or their surrounding sleeves in the vicinity of the ends of the core. In the form shown in the Figure, two tapes 15, 16 starting a slot pitch apart are wrapped alternately over and under the conductor ends 14. The tape may be continuously wrapped round each end conductor in turn. Wire may be used instead of tape.
Patent GB-1199278-A (GB)
Title: Improvements in and Relating to Environmental Control Systems
Inventor: BOWMAN GEORGE EDWARD
IPC: A01G9/18
Filed: 1967-07-26
Abstract: 1,199,278. Treating plants. NATIONAL RESEARCH DEVELOPMENT CORP. 25 Oct., 1968 [26 July, 1967], No. 34369/67. Heading A1E. [Also in Divisions F4 and G1] The temperature and CO 2  concentration of a glasshouse or plant growth room is controlled by integrating signals proportional to photosynthetically-active radiation over set periods of time and selecting the temperature and CO 2  levels for the next period in accordance with the integrated values. The output of a radiation detector is integrated by converting it to p.r.f. modulated pulses which are counted. At the end of a pre-set time, e.g. 10 minutes a uniselector, having the steps of one bank connected to corresponding counter steps, steps round until it reaches the operative contact on the counter. Wipers on other banks of the uniselector select appropriate resistors in the circuits of a heating and ventilating controller and a CO 2  controller. If the ventilator is wide open, the supply of CO 2  is stopped to prevent waste. The system may be overridden manually or by a clock or light lever detector so as to operate only at specific times of day. The radiation signal may also be integrated over 24 hours to control the supply of water.
Patent GB-195436-A (GB)
Title: Improved machine for eradicating weeds and digging potatoes and the like
IPC: A01D17/18
Filed: 1921-12-21
Abstract: 195,436. Robertson, J. Dec. 21, 1921. Implements with adjustable tool frames, and disc-tool and rotary-tool implements, with means for treating soil; lifting tool frames manually.-A potato and like root-crop harvester, which may also be used for removing weeds from soil, comprises a frame 1 supporting a plough which lifts the soil to be treated and discharges it into a screening-drum 7 arranged on an axis transverse to the frame 1 and rotated by engaging the ground. The frame 1 carries vertically adjustable disc coulters 2 which cut the surface of the ground into strips in front of a plough sock 19 fitted on a plough frame 21 that is vertically adjustable by a hand lever 23 operating over a quadrant 29. The sock is hinged to a mouldboard 17 suspended by chains 18 from the side members 9<A> of the frame for the drum 7. A tail-piece 26 is flexibly secured to the mould-board by angle-pieces 27 secured to the mould-board. The drum comprises two rings 7<A>, 7<B>, one flat and the other of angle-iron, connected by rods 7<c>, alternate members of which may be bolted to the rings to facilitate their removal. Bars extend across the rings and radial arms support the drum on a shaft 6 extending into a sleeve 5 mounted .in a self-adjusting bracket 4<A>, 4<B>, and connected by a universal joint 11 to a spindle 12 : this spindle carries a pinion 12<B> which may be thrown into mesh with an internal gear on the ground wheel 13 by a clutch lever 14A. The outer end of the shaft 6 is supported by a bearing 9<c> carried on the outer member 9B of the drum frame. The side members 9A of this frame are pivoted on a rod 4 carried by brackets 3 extending from the main frame. Grooved pulleys 10<B> mounted on brackets on the members 9<A> support the inner end of the drum. When used for destroying twitch and other similar weeds bands 8<A> carrying spikes 8<F> are clamped round the drum and a rotary knife member 15 is secured to the sleeve. 5. The blades 15<c> are mounted in guides 15<B> and may yield against the pressure of springs 15<F>. Disintegrators 16 are secured to the sleeve within the drum. The frame 9<A>, 9<B> is provided with a telescopic and adjustable stay 41 secured to the front of the main frame. The steering wheel 33, which is controlled by a rod 31 moving over a rack 34, is vertically adjustable in a laterally adjustable member 35 by pulling on a hand lever 39 connected to the top of the stem 32 of the wbeel by a chain 38<A> that passes under a pulley 36 on the main frame. A rack 40 maintains the lever 39 in the desired position. A vertically adjustable wheel 42 is provided at the rear of thamachine.
Patent GB-605350-A (GB)
Title: Improvements in or relating to plate or disc-shaped bodies of ceramic material or glass for use in electron discharge tubes
IPC: H01J19/42
Filed: 1945-12-20
Abstract: 605,350. Discharge apparatus. PHILIPS LAMPS, Ltd. Dec. 20, 1945, No. 34498. Convention date, Nov. 27, 1940. [Class 39 (i)] The spacer 1 for the electrodes of thermionic valves &c., is made of glass or ceramic material in plate- or discshape, and has cuts 3 in its edge to prevent cracking during use or in the manufacture of the discharge tube. The subject-matter is identical with that of Specification 551,096.
Patent GB-898711-A (GB)
Title: A device for actuating a driven element
IPC: F16H31/00
Filed: 1958-10-28
Abstract: 898,711. Ratchet gearing; cam mechanism. LEDEX Inc. Oct. 28, 1958 [April 7, 1958], No. 34506/58. Class 80 (3). [Also in Group XXXV] In a rotary stepping device axial reciprocating movement, on a shaft 50, of a member such as the armature 58 of an electromagnet 14 is converted into step-by-step rotary movement of the member itself by means of a number of caged balls or rollers 68 seated in arcuate tapered recesses 66, Fig. 3, in a fixed plate 64. When the electromagnet 14 is energized a plate 62 on the armature presses against the balls causing them to roll to the deep ends of the arcuate recesses, the rolling movement frictionally rotating the plate 62. When the electromagnet is de-energized spring means, such as a spiral spring 84 attached to the cup-shaped ball cage 82, returns the balls to the shallow ends of their recesses. The armature 58 is slidably keyed for rotation with the shaft 50 by pins 70 engaging channels in a member 72 fixed on the shaft 50. The member 72 has peripheral notches engaged by a ball detent 78 which prevents back-running of the plate 62 when the balls are returned to the shallow ends of their recesses, the plate 62 being then under no axial load. As shown a second electromagnet 24, and associated frictional stepping device, is provided to rotate the shaft 50 in the opposite direction. The two electromagnet casings are drawn together by a threaded coupler 34 so as to clamp an element 32 housing the ball detent between two flanged elements 30 carrying the spiral return springs, the elements 30 also serving to limit the axial movement of the armature plates. In a modification, Fig. 6 (not shown) the spiral return springs are replaced by compression springs acting between bent-up lugs on the cage 82 and plate 64. In an alternative construction only one electromagnet and associated stepping device are provided.
Patent GB-181036-A (GB)
Title: Improvements in or relating to mining machines
IPC: E21C29/10
Filed: 1920-12-07
Abstract: 181,036. Wade, H., (Sullivan Machinery Co.). Dec. 7, 1920. Coal-cutting machines.-A coal-cutting or like machine has a pivoted cutter bar 4 adapted to be fixed in any of several positions by insertion of a pin through one of several apertures 40, 41, 42, while guiding-means 18 for the haulage chain &c. 3 may be detachably secured in one or other of the apertures; the machine may then be used either for ordinary long wall working or, by fixing the cutter-bar longitudinally of the main frame 1 or in angular position relatively thereto and arranging the haulage chain to extend from a rear anchor and over the haulage drum 2 and guiding- means 18 to a forward anchor, the machine may be used for pillar and room working. The guiding means preferably comprise a bracket 8, Fig. 3, fixed to the main frame by a bolt 11 and carrying a swinging member 16 supporting a guide pulley mounted on a transversely divided bush 19; slidably locking means 22 secure the swing- ing member and a pocket 36 contains lubricant for the guide pulley. A guard 35 extends between the cutter chain 7 and the haulage chain 3.
Patent GB-1435254-A (GB)
IPC: G01B5/02
Filed: 1974-08-06
Abstract: 1435254 Measuring instrument MITUTOYO SEISAKUSHO KK 6 Aug 1974 [15 Aug 1973] 34598/74 Heading G1M A measuring instrument comprises a linear member 1 carrying a rack 2 and a slider 6, the movement of the slider being indicated separately by two pointers 13, 14 co-operating with different scales, and the pointers 13, 14 being driven from respective pinions 3, 4 meshing with the rack 2. Pointer 13 is driven from pinion 3 via gears 5, 9 and shaft 10. Pointer 14 is driven from pinion 15 via gears 17, 11. Backlash is prevented by means of gears 18, 18' which are rotatably mounted on the shaft carrying gear 17, are linked to gear 17 by spiral springs 20, 21' and are meshed respectively with gears 9, 11. One scale may be graduated in imperial units and the other in metric. The instrument may be a slide calliper or a height gauge.