baber/WOPTO huggingface dataset:
Patent GB-1392294-A (GB)
Title: Air separation
IPC: F25J3/04
Filed: 1971-06-28
Abstract: 1392294 Separation of air BRITISH OXYGEN CO Ltd 28 June 1972 [28 June 1971] 30148/71 Heading F4P In a process for the separation of air in which a stream of compressed air is led via heat exchangers 15, 18 to a single stage rectification column 19 to produce a liquid oxygen fraction at 43 and a gaseous nitrogen fraction, a part of the latter is expanded in a turbine 25 to provide the cold for the h.e.'s 15, 18, the remainder of the nitrogen passing through the h.e.'s unexpanded, at least a portion of the latter then being compressed to a pressure greater than that of the column 19 to form a reboil stream a portion of which is used to vaporize a portion of the liquid oxygen fraction in heat exchanger 33. The reboil stream is divided into two streams after initial compression at 29, one stream passing through h.e.'s 15, 18, the other being further compressed at 31 before passing through h.e. 33 and an expansion valve 35 to rejoin the first stream. After passing through the reboiler 21 the reboil stream is passed through heat exchanger 23 and expanded at valve 37 into a separator 39, the gas being fed to the nitrogen line, the liquid being refluxed or tapped off at 41. Product nitrogen gas is removed at 27. The system may operate at two different pressures to vary the proportions of the products by passing the incoming air through one or both compressors 11, 13. In a modification, Fig. 2 (not shown), two further h.e.'s (16, 17) are interposed between the h.e.'s 15 and 18, and additional cooling is provided by work expanding a portion of the first reboil stream as it emerges from h.e. 15, the expanded stream being fed into the unexpanded part of the nitrogen fraction as it enters h.e. (16). The liquid nitrogen in separator 39 is, in this case, fed to a further h.e. (40) and then expanded through a valve (42) into a second separator 44, the vapour from which is fed via h.e. (40) and 23 into the expanded nitrogen stream issuing from turbine 25.
Patent GB-1187317-A (GB)
Title: Cycloaliphatic Alkylhydroxyphenylalkanoates
IPC: C10L1/18
Filed: 1968-06-25
Abstract: 1,187,317. Hydroxyphenyl - substituted esters of alicyclic alcohols. J. R. GEIGY A.G. 25 June, 1968 [26 June, 1967], No. 30277/68. Heading C2C. [Also in Divisions C3 and C5] The invention comprises esters of the formula in which " lower alkyl " and " lower alkylene " denote hydrocarbon groups of 1-6 carbon atoms, R denotes hydrogen or an alkyl group of 1-6 carbon atoms, n is 1-6 and A denotes a cyclo-aliphatic radical having 7-12 carbon atoms and based on a cycloaliphatic ring having 4-12 carbon atoms. alcohols from which the radical A may be derived include 2,2,4,4 - tetramethylcyclobutane - 1,3 - diol, 1,2- dimethylcyclopentane - 1,2 - diol, 4 - methylcyclohexanol, 2,2,4,4,6,6 - hexamethylcyolohexane - 1,3,5 - triol and cyclododecane - 1,2- diol. The esters may be prepared from the appropriate acid or acid chloride and the alcohol, or by transeste-ification preferably from the methyl ester of the acid, or by reacting the silver salt of the acid with the mono- or polychlorinated analogue of the alcohol. A typical example describes the reaction of 3-(3,5-di-tbutyl - 4 - hydroxyphenyl) - propionic acid with 2,2,4,4 - tetramethylcyclobutane - 1,3- diol. The products are useful as antioxidants (see Divisions C3 and C5), and among the substances which may be treated to reduce their tendency to oxidize are ester lubricants such as di-(2-ethylhexyl) azelate and pentaerythritol tetracaproate.
Patent GB-1360823-A (GB)
Title: Fluid operated logic elements
IPC: F15C3/00
Filed: 1971-06-29
Abstract: 1360823 Fluid logic and switching circuits S LEKARSKI P HARDY L HARDY and J GACHOT 29 June 1971 [2 July 1970] 30290/71 Heading F1P [Also in Divisions F2 and G4] A fluid sequencing circuit, Fig. 19, comprises a number of fluid elements each comprising a laminar member in a chamber, The member is moved by fluid pressure and is urged towards a stable position by magnetic action, see Heading G4P. When a start signal is applied at 58 the AND gate 57 in row A1 opens if supply fluid is present at AI, allowing fluid to pass to output Al. When a device, such as a store, connected to A1 has operated, a return signal occurs on input FS1, causing an output signal on A2 and the cessation of the output on A1. The circuit is so arranged that there can be a signal on an output Ax only when all previous outputs Ax-1, &c., have provided a signal and the corresponding return signals have been received.
Patent GB-1148796-A (GB)
Title: Self lubricating bearing assembly for machines running at high speed
Inventor: GOEPEL KARL
IPC: F16C33/66
Filed: 1967-06-30
Abstract: 1,148,796. Lubricating. SCHWERMASCHINENBAU ERNST THALMANN VEB. 30 June, 1967, No. 30343/67. Heading F2A. A bearing assembly comprises a shaft 11 journalled in a roller bearing 12 in a housing 6, 7 and carrying a disc 1 positioned in a chamber 16, the disc having teeth extending into a groove 2 which is connected by a hole 18 to a sump and connected by ducts 5 to annular grooves 14, 17. The level of oil in the sump is above the bottom of groove 2, so that hole 18 supplies the groove. Rotation of the disc causes an oil mist to form in chamber 16 which penetrates via a clearance in a shield 8 into roller bearing 12. On rotation of the disc a low pressure is produced in ducts 5 and grooves 14, 17 to prevent loss of oil from the housing.
Patent GB-266073-A (GB)
Title: Improvements in tubular locks
IPC: E05C1/16
Filed: 1925-12-02
Abstract: 266,073. Parkes, S. R. Dec. 2, 1925. Bolts; locking sliding latches; reversible latches ; spring mechanism and details therefor.-The bolt of a tubular mortice lock has a sheet metal shank of channel shaped crosssection and is locked by a gravity lever governed by a second pivoted lever and a sliding member. The bolt B has a solid head b<1> and a sheet metal shank b<2> and is operated by the follower j against a spring H. The bolt is normally locked by one of the fins f<2> of the level F pivoted on the pin a<1>, engaging one of the shoulders b<5> on the bolt shank. The lever T is held in neutral position by a second lever E, pivoted on the pin a<1>, with a stud e<2> engaging the slot f<1> and this lever is held in the correct position by the pin c<1> thereon engaging the appropriate gate d<1> in the sliding member D which is pressed forward by a spring K within the spring H. The lever F reverses the hand of the lock by gravity when the lock is turned bodily over. The spring H may be mounted between the latch-bolt head b<1> and a stop on the casing.
Patent GB-224103-A (GB)
Title: Improvements in or relating to knife-edge or analogous bearings for balances, weighing scales or the like
IPC: G01G1/18
Filed: 1923-12-04
Abstract: 224,103. Webb, H. Dec. 4, 1923. Bearings.-In knife-edge and analogous bearings of weighing-apparatus, a plate 10, detachably connected to the member 1 carrying the knife edge seating 3, and having a part 12 passing over the knife-edge 4 to prevent removal of the latter from its seating, has a V-shaped aperture 15 to accommodate a correspondingly shaped projection 9 on the plate 1 for positioning purposes. As shown for the centre bearing of a weighing scale of the beam type, the knife-edge 4 is secured to the oscillating beam 5 and the member 1 has a projection 6 riveted to a stationary cross beam 7. The inner faces of the members 1, 12 and the outer faces of the members 9, 10 are flush with each other respectively. The member 1 with the plate 10 may be secured to a movable part and the knife-edge 4 correspondingly secured to a stationary member of the machine. The invention may be applied to the end bearings of the weighing scale.
Patent GB-623819-A (GB)
Title: Improvements in ball bearings
IPC: F16C33/76
Filed: 1946-10-11
Abstract: 623,819. Ball bearings. AETNA BALL & ROLLER BEARING CO. Oct. 11, 1946, No. 30454. Convention date, Jan. 8, 1944. [Class 12 (i)] A ball bearing is maintained in a constant state of lubrication without substantial loss of lubricant by the fixed race having a sleeve-like part extending axially in close proximity to a hub-like part on the rotating race, the hub having a helical groove whereby escaping lubricant is fed back to the bearing. In the thrust bearing shown, the periphery of the fixed race 12 is shaped to correspond to the gripping part 28 of a cover 16 so that the cover is permanently attached to this race. At its other end the cover has a cylindrical flange 34, the inner surface 35 of which is close to a hub 36 provided on the race 13 to the shaft 11. This hub 36 has a spiral groove 43 so arranged that when the bearing is rotating, any lubricant tending to escape is carried back. The inner plane surfaces 22, 39 of the races are provided with ball grooves 23, 41; a pressed-steel, annular ball-separator 14 has ball sockets 56 formed by flanges 58 opening towards the left which alternate with similar sockets opening towards the right, the balls 17 being held in place by engagement with the races and by the separator which is itself centred between the races by this arrangement of the balls. The balls determine the concentric location of the race 12 with respect to the shaft 11 and hold it out of contact with the shaft, and the cover 16 carried by this race is maintained in concentric position with respect to the hub 36. Both races have annular recesses 44, 45 for a freely floating sealing member 15 which closes the space around the balls. In order to maintain the lubricant in the housing chamber 60 in a uniformly distributed and homogeneous condition, the outer cylindrical surface 54 of the separator is provided with a flat radially extending lug or homogenizer 61 which progresses through the lubricant when the bearing is operated. The complementary bearing surfaces on the members 34, 36 keep the races and balls in substantial alignment when there is no thrust on the bearing, so that the risk of chipping the balls or raceways due to the sudden application of a heavy thrust is minimized. In a modification, the flange 34 of the cover extends outwards and is provided with a bushing of a metal different from that of the hub.
Patent GB-364208-A (GB)
Title: Amusement ride of the horse race and steeplechase type
IPC: A63F9/14
Filed: 1930-10-13
Abstract: 364,208. Amusement apparatus. HARCOURT, S., 53A, Hartswood Road, Stamford Brook, London. Oct. 13, 1930, No. 30515. [Class 132 (i).] In an amusement ride of the horse-race type, endless strings of horses, attached to steel uprights projecting through narrow gaps in a stationary floor, are carried on.bogies running on fixed tracks, such bogies and tracks being invisible to the spectator and rider, and visible obstacles, such as fences, hurdles, or water-jumps, are placed at suitable points of the ride, the uprights being hinged at their upper ends, front and rear, to the undersides of: the horses, and being connected at their lower ends to a system of levers carrying at their lower ends wheels or rollers, front and rear, which contact with undulations placed adjacent to the carrying track at suitable positions near the obstacles, whereby the horses are caused to rise above the obstacles, which are provided with narrow gaps to permit of the passage of the carrying uprights. and brackets, separate undulations being provided for the front and the rear wheels or rollers. The combination of carrying bogies, hinged uprights, and undulating tracks is such that on the level the weight of the horse and rider is carried, through the uprights, on the carrying bogies, whereas in jumping, cantering, or galloping the weight is transferred, through the front and rear wheels, which are on a system of levers connected to the uprights, to the undulating tracks. The strings of horses may be moved either by separate motor bodies interspersed in the strings, or by motors embodied in the carrying bogies. As shown, the horse 1 is carried by a bracket 2 hinged at 19 to the uprights 3F, 3R respectively, which are provided with projections which normally rest on the supporting pins 15 on the bogie 4. The bogies have wheels 6 running on the rails 17 and are coupled together by the shackles 7. The levers 11 are hinged at 21 to the bracket 14 depending from the bogie, and are also bracketed at 3RD to the upright 3R, while the levers 9 are hinged at 20R and 20F respectively to the uprights 3R and 3F. The levers 9 carry wheels 10 running on the inner track 18F, while the levers 11 carry wheels 12 running on the outer track 18R.
Patent GB-1214416-A (GB)
Title: Network for producing two quadrature periodic signals
IPC: H02P23/00
Filed: 1969-06-17
Abstract: 1,214,416. Automatic speed control. AMPEX CORP. June 17, 1969 [July 9, 1968], No.30538/69. Heading G3R. [Also in Division H3] A capstan speed control system comprises an optical tachogenerator which produces two signals Ain, Bin. These signals are fed to a quadrature and amplitude stablizier 1 See Division H3) to produce two quadrature signals A o , B o  representative of the actual velocity and phase of the motor. A two phase oscillator 202 produces signals corresponding to the desired velocity, and one signal from each unit 1,202 is fed to the frequency discriminator 204 and the resolver 206. The outputs are summed at 208 to provide the motor control signal.
Patent GB-618011-A (GB)
Title: Improvements relating to drum type rotors for turbines or pumps
IPC: F01D5/30
Filed: 1946-10-14
Abstract: 618,011. Turbine and like blading. SULZER FRERES SOC. ANON. Oct. 14, 1946, No. 30549. Convention date, Dec. 14, 1945. [Class 110 (iii)] In a turbine or like rotor, the slots which receive the blade roots are rectilinear and lie in an axial, or nearly axial direction. Spacers may be inserted between the blade roots and the slots are closed by discs secured on the ends of the rotor. The end blades may be securely fixed to the rotor and slight axial play left for the other blades. The blade roots and slot sides have corresponding grooves to receive square, triangular or round keys as at 14, Fig. 5. The contacting sides of the blade roots may be oblique to the slot walls. The Specification as open to inspection under Sect. 91 comprises also the use of blades with dovetailed or notched roots. This subjectmatter does not appear in the Specification as accepted.
Patent GB-431107-A (GB)
Title: Improvements in and relating to the heating of hydrocarbon oils
IPC: C10G7/00
Filed: 1934-01-12
Abstract: 431,107. Cracking oils. STRATFORD, C. W., 1, Rue Paul CÚzanne, Paris. Jan. 12, 1934, No. 30658. Divided out of 431,074. [Class 32] Oils are heated in the liquid phase by feeding them in the form of a thin annular sheet through a passage of constant cross sectional area, the oil being forced into the passage at a number of points along its length so that the velocity of the oil increases as it proceeds from the cooler to the hotter end of the passage. The amount of oil passing through any point of the heating zone is thus proportional to the temperature at that point. The heater comprises three concentric cylinders 4, 5, 6, the inner cylinder 6 being corrugated and heated internally by gases from a burner 12. Oil fed from a connection 9 to an annulus 8 passes through slots therein into an outer jacket formed by the cylinders 4, 5 from which it is injected through nozzles 10 into an inner jacket formed by the cylinders 5, 6. The oil flows from the closed end of the jacket with increasing velocity and temperature to the outlet 11. The waste gases pass through a section 2, where the oil is preheated while flowing through a bank of tubes, and then enter a section 3 through which they flow in tubes 18, Fig. 4, while preheating air, which is pumped around the tubes by a pump 20 and then passed through a pipe 21 and volute 14 to the burner 12, a swirling motion of the gases being thus obtained. The heater may be used in conjunction with the fractionating process described in Specification 431,074.
Patent GB-1055407-A (GB)
Title: Vitreous coating materials and method of applying same
IPC: C03C4/00
Filed: 1965-07-19
Abstract: Vitreous coating material is prepared by fusing a vitrifiable batch into a molten mass containing a soluble particle type opacifier and quenching to form a frit; the temperature of the frit is then adjusted to an initial nucleation temperature to effect partial precipitation of the soluble opacifier in its crystalline form, and then raised to a higher nucleation temperature to effect further precipitation of the opacifier in its crystalline form.  The frit may then be cooled and ground. The opacifier may be TiO2. Water quenching or roll quenching may be employed; the frit may then be dried and may be allowed to cool to room temperature.  The first nucleation temperature may be 800-900 DEG  F., and the second, 950 DEG -1100 DEG F.  Reference has been directed by the Comptroller to Specification 953,767.
Patent GB-249077-A (GB)
Title: Improvements in or relating to the thread boards of spinning machines
IPC: D01H13/04
Filed: 1925-12-04
Abstract: 249,077. Gr³tzner & Faltis, and Opitz, J. March 13, 1925, [Convention date]. Thread guides.-The thread boards 1 of spinning-machines are manufactured from the asbestos cement composition as at present sold under the registered trade mark " Eternit " or other substance having a similar composition, and are provided with porcelain, glass, or brass eyes 4 secured by brass plates 5, and with brass bearings 2 secured by screws 3. The Specification, as open to inspection under Sect. 91 (3) (a) comprises also thread boards manufactured from " fulgurite " or the like. This subject-matter does not appear in the Specification as accepted.
Patent GB-223079-A (GB)
Title: Injection device for concrete plastering
IPC: E04F21/12
Filed: 1923-12-06
Abstract: 223,079. Forain, H. J. O. Dac. 6, 1923. Air-pressure sprayers.-Apparatus for applying concrete to the surfaces of walls, mine galleries, &c. consists of a feed hopper E containing semiliquid concrete, a rigid supply twyer tube T on which the hopper is adjustable by sliding to regulate the discharge from the hopper, two constricted portions in the tube T through which air under pressure is blown by nozzles A, A', and a hose pipe b provided at the exit end with separate air and water atomizing nozzles L, L<1> for spraying and completely hydrating the concrete after it leaves the pipe b. Water is supplied by a tank B, and the whole apparatus is mounted on a truck t.
Patent GB-211198-A (GB)
Title: A new or improved mechanical toy
IPC: A63H33/04
Filed: 1922-11-09
Abstract: 211,198. Coman, W. r. Nov. 9, 1922. Drawings to Specification. Clocks.-A pendulum timepiece is made of parts so constructed as to be readily assembled or taken apart for purposes of instruction. The parts are sold attached to a card together with illustrated instructions.
Patent GB-1168497-A (GB)
Title: Improvements in and relating to Seats for Vehicles
Inventor: SINFIELD DONALD
IPC: B60N2/52
Filed: 1967-07-04
Abstract: 1,168,497. Resiliently mounted seats. BOSTROM MFG. CO. Ltd. 18 June, 1968 [4 July, 1967], No. 30711/67. Headings A4J and A4U. In a resiliently mounted vehicle seat, having seat and back pans 14 and 24 pivotally interconnected and the latter supported, from a fixed cross bar 31, by tension springs (32), resilient bushings (28) slidably and pivotally connect pan 24 to cross bar 31, so that fore-and-aft movement of parts 14 and 15 adjusts the inclination of pan 24. The front of pan 14 is pivotally mounted on studs (18) on the cross member 17 of slidable U-shaped frame 15. The fore-and-aft adjustment of frame 15 is controlled by pins and slots 21, 22 and clamp nut 23. Rods 27 are fixed to the rear of pan 24 and slide through the resilient bushings (28). A shock absorber (33) is associated with tension springs (32). In another form, the fore-and-aft adjustment of the slidable frame and seat pan is effected by rotating screw-threaded shaft (120, Figs. 5-7, not shown). The inclination of the back pan may, additionally, be independently varied by moving a slotted bar (140) longitudinally.
Patent GB-1464204-A (GB)
Title: Process and apparatus for widening the end zones of pin hub  bores for internal combustion engine pistons
IPC: F16J1/16
Filed: 1975-07-23
Abstract: 1464204 Making pistons; rolling MAHLE GmbH 23 July 1975 [24 July 1974] 30778/75 Headings B3A and B3M A process in the production of internal combustion engine pistons 2, particularly those of light metal, for widening the end zones of the pin hub bores nearest to the centre of the pistons, with the use of a rolling mandrel 4, 5, including cylindrical pressure rollers 5, in which the position of piston 2 and mandrel 4, 5 is such that rollers 5 are initially on the smaller diameter portion of shaft 3 and are pushed to the left so that rollers 5 move up conical portion A of shaft 3 thus tilting, and widening the end zone of the bore at an angle to the bore axis. The piston 2 is of aluminium.
Patent GB-973976-A (GB)
Title: Improvements in or relating to gas cooled electric machines
Inventor: WOODWARD ARTHUR THOMAS
IPC: H02K9/08
Filed: 1962-08-10
Abstract: 973,976. Seals. GENERAL ELECTRIC CO. Ltd. Aug. 9, 1963 [Aug. 10, 1962], No. 30779/62. Heading F2B. [Also in Division H2] In a gas-cooled electric machine, e.g. a hydrogen cooled synchronous condenser, in which a main chamber 1 and a subsidiary chamber 2 containing the brush gear &c. are normally open to each other so that cooling gas passes freely between them, sealing means are provided comprising a rubber diaphragm 5 which is normally spaced from a seal member 14 but is movable into sealing contact therewith, as shown in chain-dotted lines, by high-pressure gas supplied through a pipe 12 to thereby isolate the chambers and facilitate inspection &c. of the brush gear. The diaphragm 5 is secured to a partition 3 having an aperture 6 through which the machine shaft (not shown) extends and the member 14 is formed on a fan hub 13 mounted on the machine shaft in the chamber 2. When the diaphragm 5 is operated by high pressure gas to seal against the member 14, the hydrogen pressure in the chamber 2 may be released and the chamber opened to atmosphere. The highpressure gas may then be cut off and the pipe 12 connected to the hydrogen pressure in the chamber 1, which pressure will then maintain the diaphragm in contact with the member 14.