baber/WOPTO huggingface dataset:
Patent GB-697093-A (GB)
Title: Improvements in or relating to gas-turbine power plants
Inventor: MORLEY FREDERICK WILLIAM WALTO
IPC: F02C7/047
Filed: 1950-05-17
Abstract: 697,093. Heating air. ROLLS-ROYCE, Ltd. April 23, 1951 [May 17, 1950], No. 12390/50. Class 64 (iii) [Also in Groups XXVI and XXXIII] Air bled from the compressor of a gas turbine engine is heated by the turbine exhaust gases in a heat exchanger before being used to transmit heat to at least one surface on which ice is liable to form. Air from the compressor is led to a connection 28 on the outer wall 17a of the turbine exhaust assembly 17. The connection 28 leads to a distributer element 29 accommodated in one of the aerofoil section fairings 17d and is thus conveyed to a heat exchanger of which part of the conical fairing 17b forms the heat exchange surface. The air leaving the flared distributer 29 flows into an annular manifold and thence rearwardly into a narrow annular passage 30 between an inner conical wall 31 and the apex portion of the conical fairing 17b and is thus heated by the combustion products flowing through the exhaust assembly 17. The heated air leaves the heat-exchanger through a conduit 32 connected to the apex of the fairing 17b and is led through heat insulated ducting 34 to the position of use. The heat exchanger may be of the tubular type located within the conical fairing 17b which may be forced with internal passages through which the hot exhaust gases may flow. Specifications 621,544 and 621,547, [both in Group XXVI], are referred to.
Patent GB-657629-A (GB)
Title: Improvements in or relating to winding mechanism
IPC: G11B15/50
Filed: 1948-05-05
Abstract: 657,629. Driving arrangements for winding-machines. BRECOMIN (ENGLAND), Ltd., and GODECK, J. E. May 5, 1948, No. 12395. [Class 120(ii)] [Also in Groups XVI and XXXVIII] Winding mechanism for transferring wire, tape or the like from one holder to another and rewinding it on the original holder, as in electric dictation machines, comprises a driving motor connected through a driving shaft 28 to the axially movable members 33 of two one-way clutches, the members being automatically movable axially into or out of engagement respectively with corresponding driven clutch members 22 each fast on spindles 18, 19 mounting the holders when the continuously driven shaft is rotated in opposite directions. As shown the axially movable members 33 comprise ratchet gears having skew slotted sleeves through which project pins 35 formed on the hubs 32 of bevel gears driven from the main shaft the bevel gears being freely mounted on spindles 18, 19. Friction members 37 engage the ratchet gears 33 so that, depending on the direction of motion of the main shaft, one gear is axially moved to engage a cooperating ratchet gear 22 fast on one spindle and the other moved axially out of engagement with a similar gear. One or other of brake drums 38 engaged by brake pads become locked with the spindle 18 or 19 simultaneously with the change of drive, so that the undriven pay-out reel is braked, due to similar pin and slot operated ratchet gears 43 being rotated to engage or disengage from the ratchet gears 22 by arms 51 connected to the gears 22 frictionally. engaging the rims of the gears 43. The holders 10, 11 are mounted in a removable magazine on hollow spindles 12, 13 having spring-loaded dollies internally engaging with splines at the upper ends of the spindles 18, 19. The spindle 18 is driven by a bevel gear connected to the drive shaft by a spring 31 to reduce shock, the spindle 18 being driven at a greater rate than spindle 19 to speed up rewinding, and to provide lost motion ensuring that one spindle is released before the other is engaged. Additional adjustable brake shoes contact the friction drums and are both automatically disengaged by a solenoid-operated common pull-off device when the electric drive motor is started. According to the Provisional Specification the clutch gears 22 may be mounted to have almost 360 degrees lost motion.
Patent GB-1175158-A (GB)
Title: Improvements in or relating to Hydraulic Governors for Rotary Machines
Inventor: CROOK ALFRED WILLIAM
IPC: G05D13/08
Filed: 1967-03-16
Abstract: 1,175,158. Valves. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 28 March, 1968 [16 March, 1967], No. 12435/67. Heading F2V. [Also in Division G3] A governor comprises a shaft 13 driven by the governed machine, e.g. a steam turbine, and an inertia mass 69 supported on extension 63B of the shaft by bearings and constrained by torsion spring 71. The mass has four axial extensions 87, 93 the former of which co-operates with passages 85 in shaft 81 to produce a back pressure in passage 83 proportional to the speed. Extensions 93 co-operate with passages 91 to produce a back pressure in passage 89 proportional to the angular acceleration detected by mass 69. Passages 83, 89 connect with respective supply chambers which receive fluid via respective variable restrictors and communicate with drain via further variable restrictors. The pressures in the chambers are transmitted to separate servomotors, optionally via an amplifier, and the motors control the speed control mechanism, e.g. a valve, via a common beam. Fixed vanes (not shown) and movable vanes 75 on mass 69 co-operate in liquid-filled channel 77 to act as a damper. The extensions 87 can be of rectangular or circular cross-section and can be tapered or stepped. Radial bolts in the shaft can be adjusted to set the extensions relative to adjustable nozzles.
Patent GB-1349497-A (GB)
Title: Mechanism for laying in weft yarn in warp knitting machines
IPC: D04B23/12
Filed: 1972-03-16
Abstract: 1349497 Knitting-machines KARL MAYER TEXTIL-MASCHINENFABRIK GmbH 16 March 1972 [26 March 1971] 12452/72 Heading D1C Clamps 2 on a magazine weft chain 1 for feeding wefts to a warp knitting machine are opened by contact with the lobe 10 on a cam 9 the cam being movable to the dotted line position by a pattern device 21 so that the clamp is opened too late to receive a weft when no weft yarn is required. The wefts are transferred from bobbins on a bobbin chain.
Patent GB-422841-A (GB)
Title: A method of and preparation for producing a radio-active aqueous bath
IPC: A61K8/04
Filed: 1934-04-27
Abstract: A radio-active aqueous bath for toilet or hygienic purposes is obtained by treating the bath with a halogen, or a substance yielding halogen under the conditions together with an organic substance, soluble in water to give a solution permeable by light rays, and unstable in the presence of halogen and water. Suitable halogen yielding substances are chloramine T with or without potassium iodide, and suitable organic substances are carbohydrates such as glucose and they may be mixed together to form a convenient preparation for addition to a bath or added thereto separately. Substances such as borax or carbonate of soda, as water softeners, and any suitable scent imparting substance may be added. Specification 320,096, [Class 81 (i)], is referred to.ALSO:A radio-active aqueous bath for toilet or hygienic purposes is obtained by treating the bath with a halogen or a substance yielding halogen under the conditions, together with an organic substance, soluble in water to give a solution permeable by light-rays, and unstable in the presence of halogen and water. Suitable halogen yielding substances are chloramine T with or without potassium iodide, and suitable organic substances are carbohydrates such as glucose and they may be mixed together to form a convenient preparation for addition to a bath or added thereto separately.  Substances such as borax or carbonate of soda, as water softeners, and any suitable scent imparting substance may be added.  Specification 320,096, [Class 81 (i)], is referred to.
Patent GB-1281449-A (GB)
Title: Improvements to remote manipulators
Inventor: GUENNEC RENE LE
IPC: B25J3/00
Filed: 1970-03-16
Abstract: 1281449 Manipulators COMMISSARIAT A L'ENERGIE ATOMIQUE 16 March, 1970 [31 March 1969] 12620/70 Heading B8H A master-slave manipulator comprises master and slave arms whose upper arms 15, 16 are mounted in shoulder yokes 13, 14 on a tube 9 which extends through the separating wall 1, wherein it is possible to subject the slave forearm 20 to an angular displacement relative to the master fore-arm 19 without modifying the position of this latter. The upper arm 15 comprises two coaxial tube elements 23, 24 and the upper arm 16 the tube elements 40, 41, the elements 24, 41 being capable of rotation. The aforesaid angular displacement is achieved by means of a sleeve 26 which is mounted within the upper arm 15 and is capable of rotation on bearings 25 and which is provided with a ring- gear 27 engaging aworm 28 coupled to a reductiongear motor 29 fixed to the tube element 24 and is also provided with a pulley 31. The pulley 31 has grooves 31a, 31b in which the extremities of cables 32a, 32b are fastened, the cables being guided to a pulley 39 on the upper slave-arm 16 by guide pulleys 33-38. As a normal control movement is imparted to the arm 15 by a control handle 21 through fore-arm 19 which produces a rotation of tubular element 24, this rotation is transmitted to the pulley 31 by means of the ring gear-motor system 27, 29 and thus the element 41 and slave fore-arm 20 rotate by the same amount by means of the pulley 33-38 and cables 32a, 32b. In order to obtain a relative angular displacement between the fore-arms 19, 20 it suffices to start the motor 29, thus causing rotation of the sleeve 26 by means of the ring gear 27, while the tube element 24 and fore-arm 19 remain stationary. It is also possible to obtain continuous balancing of the articulated master-slave assemblies by means of counterweights (43), (44), Fig. 2 (not shown), irrespective of the relative positions of the fore-arms 19, 20.
Patent GB-360355-A (GB)
Title: Improvements in and relating to the production of vat dyestuffs and intermediate products
Filed: 1930-04-24
Abstract: Halogenated vat dyes and intermediates therefor are prepared by halogenating in the presence of an inert medium consisting of phthalic anhydride or halogenated derivatives thereof, starting materials which do not contain groups or substituents attacked by either phthalic anhydride or its halogenated derivatives. Halogens or the customary halogenating agents, such as sulphuryl chloride, may be employed, and at temperatures at which the phthalic anhydride medium is molten, for example at 200 DEG  and upwards.  The phthalic anhydride medium is unaffected by the halogen and has the further advantage of a low volatility and low fire risk at these high temperatures; it is easily recovered from the halogenated product by extraction with water leaving the product if a dyestuff, in a state of division suitable for immediate use.  In examples is described the chlorination in presence of molten phthalic anhydride, of nitrodibenzanthrone to give a pentachloro- or hexachloro derivative (dyes deep blue shades); dibenzanthrone (iodine being employed as a catalyst in some cases) to give pentachloro-, hexachloro-, and nonachlorodibenzanthrone and other chloro derivatives, according to the duration of chlorination; the pentachloro derivative dyes fast bright reddish-blue shades: isodibenzanthrone (with or without the use of iodine as catalyst) to give violet and blue-violet dyeings: a mixture of dibenzanthrone and isodibenzanthrone: 1.2 : 2<1>.1<1>-dianthraquinone dihydroazine (iodine being present as catalyst) to give a blue dyestuff: indogo: thio-indigo: benzanthrone to give Bz1-chloro and more highly chlorinated derivatives: anthraquinone to give a mixture of bodies.  Similarly is described the bromination in molten phthalic anhydride of Caledon Red BN (anthraquinone naphthacridone) and of pyranthrone to give red and red-orange vat dyes respectively.  The halogenation of Bz1.Bz1<1>-dibenzanthronyl is also mentioned.  Specifications 254,476, 339,324, 339,954, [all in Class 2 (iii), Dyes &c.], 350,030, and 354,323 are referred to.
Patent GB-400678-A (GB)
Title: Improvements in tanning apparatus
IPC: C14B1/00
Filed: 1932-05-02
Abstract: 400,678. Tanning-apparatus. VEITCH, J. A., 10, Fort Street, Port Elizabeth, South Africa. May 2, 1932, No. 12751. [Class 76.] A rotary tanning-apparatus comprises an open frame of bars G supported on an immersed bearing within a tank and rotated by suitable gearing such as the gears M, N, O. The hides are placed on the floor A of the frame in horizontal position. The bearing comprises a bearing member C which rests on a ball race supported by a mounting D on the floor of the tank. A sleeve E extending upwards from the mounting D and a sleeve F depending from the block B on the floor of the rotary frame serve to prevent access of liquid to the bearing.
Patent GB-111995-A (GB)
Title: Improvements in Nuts particularly applicable for Securing Wheels or other Members to Tapered Shafts, Spindles or the like.
Inventor: SQUIRES EDWARD
IPC: F16B37/04
Filed: 1917-09-05
Abstract: 111,995. Squires, E. Sept. 5, 1917. Nuts.-A nut for securing a wheel or piston on a shaft or rod has a semicircular flange c which, by engaging over a flange b, draws the wheel &c. a from off a tapered part of the shaft e when unscrewed. The rotary move. ment of the nut is not transferred to the wheel.
Patent GB-401306-A (GB)
Title: Improvements in voltage regulators
IPC: H02P9/24
Filed: 1932-05-03
Abstract: 401,306. Electromagnetic interrupters. LOCK, A. C. and SIMMS MOTOR UNITS, Ltd., Percy Buildings, Gresse Street, London. May 3, 1932, No. 12768. [Class 38 (v).] In a vibratory electromagnetic regulator for dynamos the spring loading is adjusted without affecting the settings of the contacts or of the air gap. The regulator comprises a coil 1 having pole pieces 3, 4 provided with tubular extensions 5, 6 into its core so as to provide a narrow gap 7, a two piece armature axially movable in the core the parts 8, 9 of which are screwed together, the part 9 having a pole piece enlargement 13 and being attached at its farther end to a diaphragm 11 and to one contact 14 of a pair 14, 14a of contacts which are normally closed, and the part 8 being connected to a diaphragm 10 and extension 15 which is provided with one contact 16 of a pair 16, 16a which are normally open, the extension 15 also having an insulated collar 17 carrying a compression spring 19 the other end of which engages an adjustable abutment 20. The air-gap is adjusted by adjustment of the contact 14, and the setting of the contacts 16, 16a by the contact 16a which is movable in the abutment 20 and may be locked by a nut 21. Independent adjustment of the loading spring 19 is obtained by the screwed abutment 20 which does not affect the setting of the air gap or contacts.
Patent GB-1071504-A (GB)
Title: Filter for separating off insoluble substances mechanically
IPC: B01D25/21
Filed: 1966-03-23
Abstract: A filter comprises a plurality of plates mounted adjacent one another and adapted to receive a filter cloth between them to provide a large filtering area, each plate including a framework formed by separate pieces of material, preferably rolled flat iron, welded together. Preferably the plates each have a boring located alternately at diagonally opposite corners of the framework and a connecting channel extends between the boring and the space within the framework.  The space within the framework may be occupied by a mesh, consisting of metal rings, supported by two ropes (threaded through it), one closely adjacent to each of two opposite sides of the framework and engaged in hooks from which they may readily be removed. Alternatively, the open framework may be spanned by two upright flat bars in the form of a cross whose ends meet the frame members at their mid-points. These bars have a number of openings for the passage of liquid.
Patent GB-439615-A (GB)
Title: Improvements in and relating to electric water-heaters
IPC: F24H9/20
Filed: 1935-04-30
Abstract: 439,615. Electric immersion-heaters. HAUSSAUER, L. P., Sadia Works, Park Avenue, North Circular Road, London. April 30, 1935, No. 12863. [Class 39 (iii)] An immersion-heater unit comprises electric resistance heaters 2 surrounded by a jacket 3 filled with a heat conducting medium to a level above the heaters but below a non-return valve leading to a vent pipe 8. The vent pipe may be bent back to pass through the base plate 1 of the heater and may have a coiled portion. The stem 5 of an incorporated thermostatic control is placed in direct metallic contact with the jacket 3. A plate 9 is soft soldered over a hole in the bottom of the jacket. If the unit becomes unduly heated this plate becomes detached and allows the heat conducting medium to escape. This medium is preferably mineral oil.
Patent GB-497311-A (GB)
Title: Improvements in or relating to a process for roasting fine sulphides
IPC: C22B1/10
Filed: 1938-04-29
Abstract: 497,311. Roasting and sintering ores. METALLGES. AKT.-GES. April 29, 1938, No. 12889. Convention date, June 9, 1937. [Class 51 (ii)] A flame 2 of finely powdered ore burning in air is projected on to a moving surface such as the rotary cylinder a or a cone and the ore which is deposited on the surface is removed by scrapers e, 7 situated out of the region of the flame. The cylinder may be arranged vertically as shown or horizontally, its surface may be corrugated, peripherally and it may be heated or cooled internally. Materials such as lime or silica for lowering the sintering temperature, or fuel for reducing the ore to more readily sinterable oxides, may be added to the ore.
Patent GB-1204094-A (GB)
Title: Tobacco
Inventor: LUTTICH WERNER
IPC: A24B15/38
Filed: 1969-03-12
Abstract: 1,204,094. Flavouring tobacco. H.-J. FRÍHLING. 12 March, 1969, No. 12896/69. Heading A2C. The smoke flavour of tobacco is influenced by adding to the unsmoked tobacco a flavouring compound which occurs in the smoke of natural tobacco, the compound being pyrrole, 2-methyl pyrrole and 2- ethyl pyrrole. The compound may be isolated from a tobacco steam distillate.
Patent GB-455770-A (GB)
Title: Improvements in earth and rock boring machines
IPC: E21B3/00
Filed: 1936-05-07
Abstract: 455,770. Boring earth and rock. SVENSKA DIAMANTBERGBORRNINGS AKTIEBOLAGET, 4, Wahrendorffsgatan, Stockholm. May 7, 1936, No. 12909. Convention date, May 8, 1935. [Class 85] In an earth and rock boring mach ine, a spindle 1, t( which the drill tubes are secured by a chuck 3, is driven by a motor 10 through gearing 9 8, 7, 6 and is ad vanced by means o a feed nut 18 en gaging a threaded part 4 of the spindle and driven from the spindle througl gears 11, 12, slip ping clutch 14, 15 adjusted by a screv 26, and gears 16 17 ; the nut 15 is connected by a flange 19 to a piston 20 in a cylinder 22 containing oil &c., and connected to gauges 24, 25, whereby the weight of the drill tubes or the pressure on the drill may be ascertained. In another form, the clutch 14, 15, is replaced by a multiple disc clutch.
Patent GB-1463714-A (GB)
Title: Measuring apparatus
IPC: G01D5/245
Filed: 1974-03-22
Abstract: 1463714 Measuring dimensions electrically VYZKUMNY USTAV OBRABECICH STROJU A OBRABENI 22 March 1974 [6 April 1973] 12967/74 Heading G1N Measuring apparatus comprises a frame having two rotatably mounted pins each connected to an arm having a mechanical measuring contact, and further connected to a sector provided with an angular displacement transducer arranged to be supplied with two electrical signals phase-separated by 90 degrees and co-acting with a magnetic sensing head. Each of two arms 3, 4 seated in precision bearings has a finger 1, 2 and is coupled to a sector 5, 6 carrying an angular displacement transducer 7, 8 co-operating with a magnetic pick-up 9, 10. The arms may be initially positioned by a motor 14 with a mechanical coupling 13, and are loosely coupled together for contary rotation by gears 11, 12 which have sufficient clearance to allow the arms to move independently in use. A 100 KHz signal from an oscillator 15 is processed by a divider 16 to give two 25-KHz signals in mutual quadrature which are amplified at 17 and fed to both transducers 7,8. The signals induced in each pick-up 9, 10 have a resultant phase angle representing the displacement of a respective finger and pass repetitively through one cycle for every 2 mm displacement over a range of 20 to 140 mm. Pick-up signals, resolved at 18, 19 and amplified at 20, 21, are fed respectively to the stator of a selected one of eight selsyns 22-29 and to the stator of a selsyn 30, the rotors of these selsyns being connected to a phase-meter 31 which feeds automatic control apparatus 32 and a display 33. Each of the eight selsyns 22-29 can be pre-set to give a zero reading at the display 33 for a respective one of eight desired diameters of a workpiece, a correction for all eight being settable on the selsyn 30. The workpiece is first ground to within 2 mm above the desired diameter to avoid ambiguity of readings. The apparatus may be displaced in a direction perpendicular to the measurable dimension, so that a diameter can be checked at three positions along the axis of the workpiece.
Patent GB-1133144-A (GB)
Title: Improvements in means for measuring mechanical stresses in magneto-strictive material
IPC: G01L1/12
Filed: 1966-03-24
Abstract: 1,133,144. Measuring stress electrically. ALLMANNA SVENSKA ELETRISKA A. B. March 24, 1966 [March 25, 1965], No.13004/66. Heading G1N. In order to measure the stress in a block of magneto-strictive material, a hole is bored in the material in a direction at right angles to the externally applied stress and an A.C. energized pair of coils 6, 8 is housed within the box so as to produce a homogeneous magnetic field in the bore wall. A second pair of coils 7, 9, detects changes in flux distribution due to the stresses in the bore wall. The two pairs of coils are wound on a cruciform core 2 and embedded in synthetic resin, and may be placed either 90 degrees apart as shown or 60 degrees apart to give maximum sensitivity. In a second embodiment, Fig.4 (not shown) a single energizing coil and a single search coil are each wound on the cross-bar of an 'H' section core and the two cores are held embedded in synthetic resin at the desired angle to each other.
Patent GB-131276-A (GB)
IPC: F16D13/64
Abstract: 131,276. Etablissements de Dion-Bouton Soc. Anon. Aug. 14, 1918, [Conzention date]. Void [Published under Sect. 91 of the .Act]. Clutches, friction.-The central sliding disk 3 of a clutch of the three-disk type for motorvehicles &c. is of " ferodo." thermoid," or other light non-metallic material conected to its boss 10 by plates 8, 9. Springs 7 and levers 6 provide for actuation.
Patent GB-1286911-A (GB)
Title: Improvements in or relating to chucks
Inventor: LEADER RICHARD ROBERT
IPC: B23B31/30
Filed: 1970-03-19
Abstract: 1286911 Chucks RICHARD R LEADER Ltd 19 April 1971 [19 March 1970] 13179/70 Heading B3B A chuck comprises lever-operable jaws, the lever linkage being actuable by a gas pressure piston-and-cylinder arrangement in which the cylinder is housed within, or forms part of the body of, the chuck, the gas pressure allowing the piston to overcome a spring force to cause the jaws to move in an opening or releasing direction which is opposite to that direction of movement provided by the spring force alone. In the embodiment shown three jaws 11 are movable by pivoting of respective levers 16 whose inner ends 19 are movable by a recessed piston-rod 14 secured to a piston 25; the latter is movable in a cylinder 26 against the action of three compression springs 24 when gas, e.g. compressed air, is supplied to cylinder 26 via a rotary coupling 28. Clamping members (not shown) of the jaws each have serrations and a groove whereby they are located by respective members 34 and serrations 35. The jaws may provide internal or external grip. In a modification (Fig. 3, not shown), each clamping member (38) is secured to a respective slidable T-shaped member (37) whose head moves radially in a T-slot (36), radial location of the T-shaped member and associated clamping member being by interengagement of serrations (35) on the clamping member and sides of the slot (36). In other modifications two, four or more jaws are provided; and six or nine springs may be provided.