baber/WOPTO huggingface dataset:
Patent GB-1254219-A (GB)
Title: Vibration monitoring systems
Inventor: LYNAS DEREK LEIGH
IPC: G01M99/00
Filed: 1969-03-05
Abstract: 1,254,219. Measuring rotary unbalance electrically. ROLLS-ROYCE Ltd. March 5, 1969, No.11582/69. Heading G1N. A system for monitoring the vibrations produced by a triple -shaft gas turbine engine in an aircraft comprises two Piezo-electric crystal accelerometers 10, 12, mounted on the front and rear ends respectively of the engine casing and generating with amplifiers 18, 20 an alternating voltage of which the amplitude and frequency are proportional to those of the vibrations, the resulting frequency spectrum being divided by filters 66, 68, 70 into three non-overlapping bonds, each of which is characteristic of a different one of the three shafts. A change-over switch 36 may be connected to one of the inputs 32, 34 in cyclic alternation by a driving circuit 42 the resultant output signal after amplification being passed through a primary bond pass filter 54 having a lower cut-off frequency (say 13 Hz.), which is high enough to exclude signals due to air-frame vibrations, and an upper cut-off frequency which is low enough to exclude signals due to vibrations of individual rotor blades. The output signal is applied to the parallel inputs of three further filters; a low-pass 66, passing signals from 13-80 Hz, a bond-pass, 68, passing signals from 80-120 Hz and a highpass, 70, passing signals from 140-400 Hz. These three bonds representing the characteristic vibration frequencies of the L. P., I. P. and H. P. shafts respectively. One of the outputs of the four filters selected by means of a switch 58 passes to a rectifier, 86, thence to an indicator 88. The output from the first bond pass filter is also connected to a comparator 78 via a rectifier 73 whereby if the signal amplitude exceeds that of a reference voltage 80, a visible or audible alarm 84 is actuated. The circuit may be calibrated at intervals using signals of known amplitude and frequency from a test oscillator 26.
Patent GB-1059765-A (GB)
Title: Electrical speed-control apparatus
Inventor: DUFFY KENNETH ALFRED
IPC: F02M59/00
Filed: 1964-03-19
Abstract: 1,059,765. Automatic speed control. C.A.V. Ltd. March 4, 1965 [March 19, 1964], No.11616/64. Heading G3R. A pump 11 to be tested is driven by electric motor 10 through variable speed transmission 12 comprising a pair of pulleys associated with a driving belt, each pulley being divided and the relative axial setting of the parts being controlled by piston-cylinder actuators. When fluid under pressure is supplied to one actuator, the effective diameter of the associated pulley is increased and the diameter of the other pulley is decreased. When carrier 36a is set at an angular position equivalent to the required speed of operation of the pump, photo-cells 33b, 34b, 35b, are illuminated so that relays are operated to energize valve-solenoids 22, 23, 25, whereby the transmission mechanism is set to accelerate the pump. As the speed increases, mask 39, associated with tachometer generator 40 obscures cell 33b so that solenoid 25 is de-energized to reduce the rate of acceleration. Eventually, the mask obscures cell 35b and solenoids 22, 23, are de-energized for preventing further change of speed. To reduce the speed, the carrier is moved in the opposite direction, and cell 34b is obscured, thereby causing solenoids 22, 26 to be energized. A substantial reduction of speed is afforded by uncovering cell 35b to effect deceleration at a high rate. Subsequently, cell 35b is obscured to reduce the rate of deceleration, and finally cell 34b is illuminated to prevent further variation of speed. If the speed of the pump alters when the solenoids are de-energized, the mask move in the appropriate direction to restore the speed to the value determined by the setting of the carrier. The carrier has its setting varied in accordance with a predetermined programme by means of disc 41 having two series of holes 42, 43, for increasing and decreasing the pump-speed respectively, the holes being arranged in accordance with the desired speed programme. The disc is driven by motor 46 through a slipping belt coupling in either direction, the holes co-operating with electro-magnetically operated stops 44, 45.
Patent GB-569425-A (GB)
Title: Improvements in and relating to securing the traveller rings of ring spinning and ring doubling frames
IPC: D01H7/60
Filed: 1943-07-16
Abstract: 569,425. Rings for spinning and doubling frames. AKT.-GES. J. J. RIETER & CIE. July 16,1943, No. 11632. Convention date, Sept. 1, 1942. [Class] 120 (ii)] Traveller rings for ring spinning and ring doubling frames which bear on the ring rail 1 through a flange 3 are characterized in that each ring 2 is formed, below the flange, with a conical outer surface which is pressed on one side against the bore in the rail which is preferably conically roamed at its lower edge. The rail is conically bored to contain a conical nut 5, for each ring, drawn into the bore by a screw 6 and bearing against a conical recess 7 in the ring so to press the ring sidewardly and downwardly. In a modification, the sidewardly and downwardly pressure on the ring may be exerted by wedges.
Patent GB-695067-A (GB)
Title: Improvements in or relating to compositions of matter
IPC: D06M15/263
Filed: 1951-05-18
Abstract: A composition, particularly for sizing textiles, comprises polymethacrylic acid, partially neutralized to a pH of not less than 4.5, a plasticizer, e.g. ethylene glycol, glycerol or sorbitol and an emulsifiable lubricant comprising a polyoxyethylene derivative of a long chain aliphatic organic compound and, optionally, a hard, high melting water-insoluble wax, e.g. paraffin, beeswax, carnauba; stearic or palmitic acids; glycerol, sorbitan, sorbide, polyoxy-ethylene glucose or polyoxyethylene sorbitol, stearate or palmitate.  The polymethacrylic acid is neutralized, preferably not above a pH of 6, in aqueous solution by the addition of sodium or ammonium hydroxide, trisodium phosphate, triethanolamine, morpholine, 2 - amino - 2 - methyl - 1, 3 - propanediol, 2 - amino - 2 - methyl - 1 - propanol or urea.  The polyoxyethylene group, in the water-soluble or water-dispersible derivative, may be connected through a carbonyl group, an ether linkage, an amine linkage, an amide linkage or a thioether linkage.  The derivatives e.g. polyoxyethylene stearate, polyoxyethylene castor oil, and polyoxyethylene sorbitan monopalmitate, may be prepared as described in Specifications 375,842 and 380,431.  The composition may be prepared dry, e.g. by mixing the molten lubricant with a milled mixture of the other ingredients and granulating, and then dispersed in water.
Patent GB-428414-A (GB)
Title: Improvements in and relating to electric incandescent lamps
IPC: H01K3/16
Filed: 1934-04-18
Abstract: A tubular double-ended electric incandescent lamp is provided at its ends with metal discs, and also with a filament-supporting structure which extends between, and connects the filament to, the discs, which consist of an iron alloy containing 26-30 per cent of chromium, less than 1 per cent of nickel and specified proportions of manganese, silicon, carbon, sulphur, and phosphorus.
Patent GB-568899-A (GB)
Title: Improvements in and relating to pistons
IPC: F02B3/06
Filed: 1943-07-19
Abstract: 568,899. Pistons. SPECIALLOID, Ltd., and GRAHAM, E. B. July 19, 1943, No. 11729. [Class 122 (i)]. An internal combustion engine piston is provided with two groups 10 of heat dissipating ribs tapering in depth or width or both towards the open end of the skirt and localised between the bosses. A rib 11 of the same width as the bosses may extend from'each boss to the head and may be provided with a flange adjacent to the piston axis. Ribs 16 may be provided on the piston head. Inserts may be provided as described in Specifications 483,993, 556,224, 556,267, and 557,070 which are referred to. The piston, may be formed from Y or LO-EX alloys or alloys known under the Registered Trade Marks " RR " and "Ceralumin."
Patent GB-544884-A (GB)
Title: Improvements in or relating to method of and apparatus for printing or coating a travelling web of sheet material with a thermoplastic material
IPC: B05D1/28
Filed: 1940-07-15
Abstract: 544,884. Coating webs; printing. CHAMPLAIN CORPORATION. July 15, 1940, No. 11732. Convention date, Aug, 18, 1939. [Class 140] [Also in Group XVI] A travelling web of sheet material, e.g. of paper, cellulose film, fabric or metal foil, is printed or coated with thermo-plastic material by applying the material liquified by heat to a surface of the web in closely spaced but segregated and uniform quantities and integrating them to a smooth and continuous film. A suitable coating composition comprises zinc resinate and hydrogenated castor oil. A web W which may be pre-heated by a heater 36 is coated with material from a bath 24 by an intaglio cylinder 18 cooperating with an impression cylinder 14. The bath 24 and cylinder 18 are heated by circulating a fluid through, or providing cartridge heaters in passages 28, 30. An adjustable doctor blade 32 serves to remove excess coating from the cylinder 18. The coated web' is heated at 34 by carbon filament infra-red lamps, resistance heaters, carborundum glow bars, gas radiants or heated air blast &c. then initially set by cool air blasts from nozzles 40 and further cooled by a cooling roller 42. U.S.A. Specification 1,911,592 is referred to.
Patent GB-236698-A (GB)
Title: Means for supplying aircraft with fuel while in flight
IPC: B64D39/04
Filed: 1924-05-12
Abstract: 236,698. Seversky, A. Procofieff-. May 12, 1924. Valves actuated indirectly. -In an arrangement for transferring liquid fuel from a supply aircraft 47, Fig. 1, to a receiving aircraft 49 by means of a hose pipe 15 depending from the upper aircraft and delivering into a receiver 34 fitted on the lower aircraft, the lower end 16 of the pipe 15 is fitted with an automatic rotary discharge valve 22, Fig. 5, normally maintained in the closed position as shown by a leaf spring 25 bearing against a pivoted semicylindrical flap 23, which operates the valve through spur wheels 19, 20. When the end 16 enters an inner pipe 35 of the receiving apparatus, Fig. 7, the flap 23 is rotated into contact with the pipe and the valve 22 opened to allow the passage of the liquid fuel. The pipe 35 is arranged in a tube 34 and communicates with the receiving tank 61 through a hollow trunnion 43b which allows the inclination of the receiver to be varied. A collapsable funnel 45 supported by pivoted stays 39 and erected by sliding a ring 42 on the tube 34 serves as a means for guiding the lower end of the pipe 15 into the pipe 35.
Patent GB-724343-A (GB)
Title: Improvements in or relating to expansible bolts, especially mine roof bolts
IPC: E21D21/00
Filed: 1953-04-28
Abstract: 724,343. Anchor bolts. DEMPSEY, J. B. April 28, 1953 [May 1, 1952; Dec. 9, 1952], No. 11743/53. Class 89 (1). An anchor bolt, e.g. for supporting mine roofs, comprises two parts 36, Fig. 1, shaped as longitudinally-tapering cylinder segments, diametrically connected by a flexible member 60 and having therebetween a wedge 30 forming either a nut for bolt 20 or being integral therewith. Member 60 may be attached to parts 36 by welding or by engaging slots 66, Fig. 3, the wedge being slotted to accommodate the side limbs 62 of the member. After insertion in a hole, the bolt is supported by a sharp-edged skirt 42 until the parts are expanded to engage the walls of the hole with serrations 50, 58. In a modification, the connecting member 82, Fig. 9, has a bent head 84 which after insertion in a hole, is straightened by an upward movement of the wedge, to cause points 88 to engage the hole walls and support the bolt prior to the expansion of the parts 36.
Patent GB-569925-A (GB)
Title: Improvements in infants' chairs
IPC: A47D1/10
Filed: 1943-07-20
Abstract: 569,925. Infants' chair. RHODES, Ltd., W., and LUDLAM, A. J. July 20, 1943, No. 11809. [Class 52 (ii)] An infants chair with hooks 2 for putting over the back of ar ordinary chair &c., is made of fabric suspended from a 3 sided frame 1 with a removable fourth side 3 suspending the V-shaped 'front of the fabric. The V front provides openings for the infants' legs. The removable side comprises two partly overlapping rods 3, each shorter than the side to side span and withdrawable from the fabric to allow the fabric to be taken off and washed. A tray 4 is provided which can be folded up to grip the loose frabric against the frame 3, the hooks 2 when turned down being used as a hand grip. Padding is provided in the seat, and in the top to form a pillow.
Patent GB-706630-A (GB)
Title: Improvements in portable radio receivers
Inventor: EDWARDS PERCY JOHN
IPC: H04B1/08
Filed: 1951-05-21
Abstract: 706,630. Retractive switches. BURNDEPT, Ltd. April 1, 1952 [May 21, 1951] No. 11822/51. Class 38(5) [Also in Groups XXV and XL(c)] An on-off switch for use in a portable radio receiver comprises a stirrup-shaped member 36 to which is attached an insulating plate 37, silver-plated contact members 38 passing from one side of the plate through the plate 37 and thence through apertures in the member 36. A bridging member 41 which is supported by a spring 39 normally connects the two contacts 38. The switch is mounted within the receiver which is of the type having a lid held by a sliding stay, and is so positioned relatively to the stay that when the lid is closed the tip of the stay depresses the bridging member 41 to open the switch.
Patent GB-817922-A (GB)
Title: Reversible rug or carpet
IPC: E04B1/94
Filed: 1957-04-11
Abstract: 817,922. Carpets &c. ALDRIDGE, E. June 7, 1957 [April 11, 1957], No. 11833/57. Class 142(4) A rug or carpet has a backing of asbestos attached by sewing or buttoning along the edges. The rug can be turned over to obviate damage by fuel falling from a fire.
Patent GB-1107699-A (GB)
Title: A method of producing semiconductor devices
IPC: H01L23/29
Filed: 1967-03-14
Abstract: 1,107,699. Semi-conductor devices. MATSUSHITA ELECTRONICS CORPORATION. 14 March, 1967 [28 March, 1966],No. 11889/67. Heading H1K. In the production of semi-conductor devices with a surface insulating film, a D.C. electric field is applied across the insulating film to displace any ions towards the surface of the film so that they may be removed before the electrode metal is deposited on to the film or semi-conductor. In the embodiment, the electric field is applied across a silicon oxide layer on a silicon substrate while the assembly is heated to 200‹ C. for 30 minutes so that alkali ions such as Li<SP>+</SP> and Na<SP>+</SP> in the oxide drift to the surface. The assembly is cooled while the field is maintained and the upper surface of the oxide containing the ions is then removed; if necessary the process may be repeated. The field may be applied by means of deposited aluminium electrodes the upper one of which is removed during the surface etching treatment. The silicon oxide layer may be vitrified into phosphorus oxide-silicon oxide or titanium oxide-silicon oxide and the final device may be a planar bipolar transistor or an insulated gate field effect transistor or an integrated circuit. The semi-conductor may alternatively consist of germanium or cadmium sulphide and the insulating layer of germanium oxide or magnesium fluoride.
Patent GB-466922-A (GB)
Title: Improvements in methods of forming resilient joints
Filed: 1936-04-27
Abstract: 466,922. Hinges. TRIGGS, W. W. (Lord, H. C.) April 27, 1936, No. 11896. [Class 65 (ii)] In a joint comprising a rubber bushing between rigid inner and outer members, the bushing 3 is made initially with tapered or reduced ends 12 and is bonded, e.g. by vulcanization, over its whole length to the inner member 1 of the joint, and is then forced into the outer sleeve by endwise pressure on the member 1, the diameter of the sleeve having such a relation to the diameter of the unstressed bushing that the outer part of the bushing will be placed in longitudinal shear to such an extent that its length will be equal to the length of the bonded inner surface ; the shape of the bushing will then be as shown dotted. The outer member of the joint may be a metal sleeve for insertion in a spring eye or other housing, but the rubber is preferably placed directly in the eye, the method of assembly facilitating this. The ends of the pin 1 are, in the form shown, adapted to be clamped in shackle links, but they may also carry rubber bushes similar to 3 for insertion in the eyes of the links. In the latter case, if the central bushing is longer than the end ones it is made of smaller diameter so that when assembled the end faces of all the bushings will be in planes perpendicular to the axis of the joint, or this result may be attained by forming it of two separate bushes of the same size as those used on the ends of the pin ; the bushes are preferably in contact when assembled, to prevent endwise movement. The insertion of the bushing into the outer member may be facilitated by lubrication, preferably with a rubber cement. , Clamps and spacing members are used to hold the various outer members in position during assembly. Specification 217,681, [Class 65 (ii)], is referred to.
Patent GB-467697-A (GB)
Title: Improvements in reflector signals
IPC: G02B5/12
Filed: 1936-04-28
Abstract: 467,697. Reflectors. GENERAL MOTORS CORPORATION. April 28, 1936, No. 12059. Convention date, May 9, 1935. [Class 97 (i)] [Also in Group XI] An auto-collimating reflex unit comprises a pair of reflecting surfaces at right-angles to each other to return incident light within a limited angular range in one plane, combined with cylindrical light-condensing means to limit the angular range in a plane at right-angles thereto. The form shown in Figs. 1 and 2 comprises a cylindrical lens 1 having a horizontal axis, and a pair of vertical reflecting surfaces 2, 3 at right-angles to each other, the plane MM bisecting the angle between the reflectors being at right-angles to the medial plane of the lens. The distance between the lens and the reflectors is such that rays traversing the lens normally are focused in the plane MM after one reflection. A number of the auto-collimating units are juxtaposed to form a reflex surface. The reflecting surfaces instead of being plane as shown may be cylindrically curved about horizontal axes. The refracting and reflecting surfaces may be formed on opposite faces of a single piece of glass. The reflector may be embodied in a rear lamp as shown in Figs. 22 and 23. The upper part 10 of the lamp lens may be provided with the usual Fresnel rings and the lower part 12 is formed with cylindrical elements to concentrate light on the reflecting surfaces 14. As shown in Fig. 28 the orientation of the reflecting surfaces may be so arranged that the bisecting planes make progressively increasing angles with the normal to the front surface from the centre outwards. In Figs. 29 and 30 the light condensing means comprise cylindrical reflectors 30 which receive the incident light and concentrate' it on the reflecting surfaces 32. The surfaces 30 may be formed by stamping a metal sheet, and the reflecting surfaces 32 by stamping metal strips which are riveted to the sheet. Alternatively the reflectors 32 may be formed on a sheet of glass attached to the metal sheet, the glass between the reflecting strips being plane.
Patent GB-1302982-A (GB)
IPC: E02B15/04
Filed: 1971-04-29
Abstract: 1302982 Pollution clearing vessels S BRYDOY and A SLETSJOE 29 April 1971 [4 May 1970] 12137/71 Heading B7A [Also in Division B1] The propeller 25 of a pollution clearing vessel is housed in a chamber 21 so that it effects movement of oil contaminated water over a bow weir 3 into a separation tank 5 provided with a vertically adjustable oil skimming device 6, and the propulsion jet issuing from chamber 21 is treated with an emulsifying chemical fed through a conduit 23. The oil collected by the device 6 is fed into a tank 7 from where it is transferred into wing tanks 10 by a pump 9.
Patent GB-790731-A (GB)
Title: Stator winding apparatus
IPC: H02K15/085
Filed: 1956-04-20
Abstract: 790,731. Stator winding apparatus. BENDIX AVIATION CORPORATION. April 20, 1956 [May 6, 1955]. No. 12162/56. Addition to 779,417. Class 35. In the parent Specification loop forming elements consisting of flanged plates of insulating material are placed on each side of the stator core and the devices of the present invention and for breaking up those plates after the winding operation to permit their removal. On each side of the stator is placed a plastic ring 70 the inner periphery of which is recessed to match the core slots and projecting flanges with lugs 24 are provided to support the end windings during winding. The rings are broken up after the winding operation by applying pressure to the cutting tools 78, 83 on members 76, 81. In another form, a weakening cut is previously scored in the rings in the vicinity of the lugs and a bending thrust is applied to cause the lugs to fracture, while in yet another form the outer periphery of the rings is elbowed away from the stator core to provide an annular recess into which a fracturing tool can be introduced. A weakening cut is also cut transversely across each ring.
Patent GB-631533-A (GB)
Title: Improvements in or relating to the manufacture of pentaenes
Filed: 1947-05-06
Abstract: Vitamin A esters are obtained by condensing 4 - (21.61.61 - trimethyl - cyclohexene - (11) - yl)-2 - methyl - butene - (2) - al - (1) with a Grignard compound of 1 - hydroxy - 3 - methyl - pentane - (2) - yne - (4), subjecting the 1 - hydroxy-3.7 - dimethyl - 6 - hydroxy - 9 - (21.61.61-trimethyl - cyclohexane - (11) - yl) - nonadiene-(2.7) - yne - (4) formed to hydrogenation until 1 mol. of the hydrogen has been added to the triple bond of said hydroxy compound, treating the hydrogenation product with an esterifying agent to effect esterification of the terminal hydroxyl group and effecting dehydration and allyl rearrangement of the ester of 1-hydroxy-3.7 - dimethyl - 6 - hydroxy - 9 - (21.61.61-trimethyl-cyclohexene - (11) - yl) - nonatriene-(2.4.7) formed.  In a modification the esterification may precede hydrogenation.  Detailed examples are given in which hydrogenation precedes the esterification step.  A sample has been furnished under Sect. 2(5) of Vitamin A acetate prepared by a process in which the hydrogenation is subsequent to esterification.  4 - (21.61.61 - trimethyl - cyclohexene - (11) - yl)-2 - methyl - butene - (2) - al - (1) is obtained from b -ionone by a glycide ester synthesis, saponification and decarboxylation of the glycide ester formed.  1 - Hydroxy - 3 - methyl - pentene - (2) - yne-(4) is obtained by reacting 3-hydroxy-3-methyl-pentene-(1)-yne-(4) the condensation product of methyl vinyl ketone and acetylene) with acids, rearrangement of the double bond and the hydroxyl group occurring thereby.
Patent GB-109801-A (GB)
Title: Improvements in or relating to Motors for Aircraft.
Inventor: EDDE HENRI
IPC: F02B73/00
Filed: 1917-08-27
Abstract: 109,801. Edde, H. Aug. 25, 1916, [Convenvention date]. Drawings to Specification. Regulating.-The Specification as open to inspection under Sect. 91 (3) (a) describes means for varying the lift of an exhaust valve, comprising an adjustable wedge inserted between the stem of the valve and its actuating cam. This subject-matter does not appear in the Specification as accepted.