baber/WOPTO huggingface dataset:
Patent GB-2473181-A (GB)
Title: A CML-CMOS logic level converter with low supply noise induced jitter
Inventor: FONSECA HUMBERTO ANDRADE DA
IPC: H03K19/003
Filed: 2009-07-24
Abstract: The bias current Ibias controlling the current-switching portions 106,108 of a CML to CMOS logic level converter varies inversely with the supply voltage so that the decreased propagation delay of the output CMOS voltage-mode buffer is counteracted by an increased propagation delay in the predriver 108. Jitter in the output signal due to supply noise is reduced without requiring extra components in the converter. There is thus no loss in bandwidth due to the capacitance of these components. The drain-source resistance of the earthed gate PMOS transistor in the bias stage 102 reduces as the supply voltage increases, leading to a fall in bias current.
Patent GB-1530796-A (GB)
Title: Force transducers
IPC: G01G3/08
Filed: 1976-05-13
Abstract: 1530796 Force transducer: weighing apparatus W & T AVERY Ltd 13 May 1976 [11 March 1975] 10025/75 Headings G1N and G1W This comprises a pair of support members as 10, 12 or 40, 48 constrained to move relative to one another in a predetermined direction and a spaced pair of flexure strips, as 22, 24, or 42, 44, extending alongside one another and face to face, rigidly united together at one end to the support members at the other. Strips 22, 24 are thinner than flexure members 14, 16 and preferably provide 90% of the spring resistance. Connecting piece 26 is displaced to the left or right according to the direction of relative displacement of members 10 and 12 due to the arcuate bending of strips 22, 24 on one or both of the inner faces of which is a strain gauge. These may be a pair of gauges spaced lengthwise on each strip and connected in Wheatstone bridge configuration. The ratio of the flexure length to the spacing between strips is between 1 and 50 and preferably between 1À33 and 20. In the embodiment of Fig. 2 (not shown) support 10 is fixed and force is applied to support 12 and in that of Fig. 3 (not shown) support 12 supports a scale pan. In the embodiment of Fig. 4 (not shown) the force may be applied to strips 22, 24 which extend beyond supports 10, 12. In the embodiment of Fig. 5 the supports comprise a pillar 46 with cantilever 40 and a pillar 48. The embodiment of Fig. 6 (not shown) is similar except that a pair of cantilevers (56) supports a scale pan (50) and the flexure strips (60, 62) are inverted. The flexure strips may be biased in a preloaded state. The change in back pressure of air jets may be used instead of strain gauge signals.
Patent GB-1236711-A (GB)
Title: Branched transmission system
IPC: F16H3/66
Filed: 1969-02-25
Abstract: 1,236,711. Change-speed gear. SOC. ANON. FRANCAISE DU FERODO. 25 Feb., 1969 [27 Feb., 1968], No. 10097/69. Heading F2D. A stepped-planet bevel train providing four reduced ratios, direct drive and two reverse, has one side-wheel A clutchable to input 10 through either of two, three, four or more different-ratio spur gear paths 15, 16, 19, 20 or 15, or 15, 16, 18 and clutches S 2 ,S 1  respectively; a planet-carrier B, brakable at Far for the reverse ratios, or clutchable to input 10 through a clutch M and single-ratio spur path 15, 16, 18; a second side-wheel C permanently connected to the final output 11 through a spur pair 21, 22; and a third side wheel D brakable at Fav. All are simple ratios except the fourth forward which is torque-split by engaging the clutch M to drive the planet carrier B through the spur train 15, 16, 18, and the clutch S 2  to drive the side-wheel A simultaneously at a higher speed through spur path 15, 16, 19, 20. The clutch S 1  has capacity for only a half to a third of maximum engine torque, and is assisted by parallel one-way clutches. Gear ratios and wheel sizes are specified for three examples. Control may be manual or unspecified automatic and the driving engine may be transverse, and drive the gear through an hydraulic torque-converter or coupling.
Patent GB-1428931-A (GB)
Title: Electrophotographic copying machines
IPC: G03G21/00
Filed: 1974-03-07
Abstract: 1428931 Cleaning photo-sensitive surfaces FUJI XEROX CO Ltd 7 March 1974 [9 March 1973] 10348/74 An electro-photographic copying machine includes a cleaning blade for removing residual toner from a movable photo-sensitive layer; said cleaning blade 2 comprising a substrate having a tensile elasticity of 0À01-10 Kg/mm<SP>2</SP>, only the contacting edge of said substrate facing the direction in which the photo-sensitive layer 1 moves being covered with a cleaning layer having a coefficient of friction of less than 0À8 with respect to the surface of the photo-sensitive layer 1. As shown, with the layer 1 moving in the direction a, the edge A of the blade 2 is covered with the low friction layer, but were the layer 1 travelling in the opposite direction then the edge B would be the one to be covered. Many suitable low friction layer materials are specified, those exemplified being polytetrafluoroethylene, and resin dispersions of molybdenum disulphide, polyvinylidene fluoride and tetrafluoroethylene-hexafluoropropylene copolymer.
Patent GB-1409671-A (GB)
Title: Cyclopentane derivatives
IPC: C07C405/00
Filed: 1973-03-02
Abstract: 1409671 Prostanoic acid derivatives MAY & BAKER Ltd 28 Feb 1974 [2 March 1973] 10402/73 Addition to 1352691 Heading C2C The novel compound, 7 - [2 - hydroxy - 5- (4 - ethyl - 3 - hydroxyoctyl) - cyclopentyl] heptanoic acid, and its non-toxic salts, are prepared by reduction of 7 - [2 - hydroxy - 5- (4 - ethyl - 3 - hydroxyoct - trans - 1 - enyl) cyclopentyl]heptanoic acid, followed if desired by conversion of the free acid to a non-toxic salt. Pharmaceutical compositions having hypotensive, bronchodilator, gastric acid secretion and stimulation of uterine contraction activity, comprise the above novel compound, or a non- toxic salt thereof, together with a pharmaceutical carrier. The compositions may be administered orally (e.g. by inhalation in aerosol form), rectally, vaginally or parenterally.
Patent GB-105617-A (GB)
IPC: B22D7/06
Abstract: 105,617. Armstrong, Whitworth, & Co., Sir W. G., and Ashdown, H. H. April 20, 1916. Moulds.-A mould for casting ingots of 100 tons weight and upwards consist of a feeding head C, a body A, and a base B. The body and base have imbedded in them pipes for a cooling medium, cocks E providing for sectional cooling.
Patent GB-627349-A (GB)
Title: Improvements in or relating to electrolytic cells
IPC: C25B11/18
Filed: 1947-04-21
Abstract: 627,349. Electrolytic cells. MEIKLEJOHN, G. T., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. April 21, 1947, No. 10570. [Class,41]  An electrode assembly for use in electrolytic cells comprises a mass or masses of electricallyconducting material substantially supported within the cell by means of a series of relatively small bodies made of insulating material and resting on the bottom of the cell, and so shaped as to make edge-surface contact only with the material constituting the electrode. As shown, an anode mass 3 is formed with holes 4 to accommodate the stems 2 of truncated cones 1 which have edge-surface contacts only with the periphery of the holes 4. The cones rest on the cell bottom 7 which carries a mercury cathode 6 supporting the electrolyte 5. Instead of cones, wedges of triangular section having one or more faces supporting the anode may be used. U.S.A. Specifications 468,880, 2,104,678 and 2,328,665 and French Specification 899,026 are referred to.
Patent GB-331582-A (GB)
Title: Improvements in and relating to hot press for pressing clothes and textile furnishings
IPC: D06F71/10
Filed: 1929-04-05
Abstract: 331,582. Holttum, W. R. April 5, 1929. Ironing-presses.-In a machine in which two work supports 12 carried by a rotary structure 7 are swung alternately into position beneath a stationary head 1 and raised by a fluid pressure operated ram 21a, means are provided for locking the rotary structure in position and for preventing access of fluid pressure to the ram until the press is so locked. The rotary structure 7 is secured to a hollow shaft 5 rotatably mounted in bearings 4, 6 and steam is passed from a pipe 17, through the hollow shaft, ports 14, and pipes 9 to the work supports and exhausted through pipes 13 and ports 14<a>. The pipes are formed with flexible portions 13<b> to permit vertical movement of the work supports. The work supports are provided with depending spigots 10 which slide in the structure 7 and which are engaged by the ram 21a. The shaft 5 carries two projections 29, the appropriate one of which, when one of the work supports is positioned beneath the head 1, engages and opens a valve 27 in a fluid pressure pipe 28<c>, fed through a valve 30 from a supply pipe 28. Fluid pressure is thereby admitted through a pipe 28a, Fig. 3, to a cylinder 24 to move a plunger 24<a> forwardly against a spring into an aperture 24b, Fig. 1, in the rotary structure. In so moving, the plunger 24a opens a valve 25 in a pipe 26 extending between the pipe 28<a> and the inlet to the ram cylinder 21. The cylinder is exhausted and pressure relieved by depression of a pedal 23 which operates the valve 30 to shut off the fluid supply from pipe 28 to the pipe 28<c> and simultaneously to connect the pipe lines to a pipe 34 which is open to atmosphere.
Patent GB-106666-A (GB)
Abstract: 106,666. Ireland, S., and Gray, G. C. May 31, 1916. Treadle devices for exhausting and blowing automatic organs, pianoplayers, player pianos, &c. A folding mechanism which can be concealed beneath the case when not in use, comprises a frame D sliding in guides F and carrying treadles A hinged at K, and cranked rods B hinged to the treadles and disconnectibly engaging bellows levers E.
Patent GB-684556-A (GB)
Title: Improvements in vaccum vessels incorporating ball bearings or roller bearings
IPC: H01J35/10
Filed: 1948-04-19
Abstract: The soft metal lubricating film used on otherwise unlubricated ball or roller bearings in vacuum tubes as described in the parent Specification is modified in that (i) an alloy such as a copper-silver alloy having between 10 per cent and 28 per cent of copper is used or (ii) a silver film is applied over a copper coating or (iii) a copper film is applied over a protective coating of aluminium or chromium to prevent the effects due to the affinity of copper for steel.  Specifications 539,411, 542,665 and 545,693 also are referred to.
Patent GB-662081-A (GB)
Title: Production of fibrous water-soluble alginates
Filed: 1949-04-22
Abstract: Water-soluble alginates are made by a process which includes the steps of reacting fibrous solid alginic acid with a base capable of forming a water-soluble alginate in the presence of a liquid medium consisting of water and at least 35 per cent by volume of a water-miscible, volatile organic liquid in which the desired water-soluble alginate is substantially insoluble, the proportion of said organic liquid being chosen so as substantially to prevent solution of the reaction product and to produce a fibrous reaction product in which the fibrous nature of the original alginic acid is substantially maintained, separating excess liquid from the product and drying.  Thus, fibrous alginic acid obtained, e.g. as described in U.S.A. Specification 1,814,981 is dried by pressure, shredded, mixed with the solvent, the alkaline agent added and after gentle stirring the mixture is drained and the product dried.  Solvents specified are methyl, ethyl, n-propyl and tert.-butyl alcohols, acetone, methyl ethyl and diethyl ketone and especially isopropanol, Alkaline agents specified are alkaline compounds of alkali metals and magnesium-ammonium hydroxide and carbonate, quaternnary ammonium bases, e.g. benzyl trimethyl ammonium hydroxide, alkyl-, aryl- and alkarylamines, di- and tri-amines and heterocyclic bases.  A quantity of liquid about 0.8 galls. per lb. of anhydrous acid is quoted as being sufficient.  The amount of water present should not allow of solution of the alginate thus with isopropanol about 40 vols. of alcohol may be used with 60 of water.  The volumetric relationship is in general solvent 35; water 65 to solvent 50; water 50.  In examples alginic acid is treated with isopropanol, and (1) sodium carbonate, (2) aqueous ammonia, and (3) triethanolamine.
Patent GB-1452950-A (GB)
Title: Typewriters
IPC: B41J29/70
Filed: 1973-12-12
Abstract: 1452950 Typewriters LITTON BUSINESS SYSTEMS Inc 12 Dec 1973 [16 Feb 1973] 10820/75 Divided out of 1452946 Heading B6F The disclosure is identical to that of the parent Specification in respect of the construction of the platen carriage but the claims are directed to such a carriage's construction in which an escapement, tap and margin racks are carried in the space defined by a beam on the typewriter frame and a complementary beam carried by the carriage.
Patent GB-1187942-A (GB)
Title: A Process for Continuously Refining Cast Iron Into Steel and Apparatus for Carrying Out the Process.
IPC: C21C1/00
Filed: 1968-03-06
Abstract: 1,187,942. Refining cast iron. CENTRO SPERIMENTALE METALLURGICO S.p.A. March 6, 1968 [March 18, 1967], No.10852/68. Heading C7D. [Also in Division F4] Cast iron is continuously converted into steel by flowing it e.g. from a conduit 4 countercurrent to and dispersed in a slag/gas foam 10 into which is blown oxygen horizontally through nozzles 6 in the walls of the refining vessel, e. g. a refractorylined shaft reactor 1, to cause the foam to flow towards the top of the vessel where it overflows e. g. through conduit 8, the metal flowing towards the bottom of the vessel e. g. into a refined steel bath 2 where it is tapped e. g. through hole 3. Powdered lime and/or ferrous minerals and/or solid, liquid or gaseous fuel may be blown into the foam with the oxygen. Iron or steel scrap, pieces of limestone and ferrous minerals may be introduced above the slag e. g. through opening 7. The slag is preferably formed of calcium ferrite and 3-4% fluorite.
Patent GB-112105-A (GB)
Title: Improvements in Free Wheel Devices.
Inventor: ELLETT FREDERICK STUEMPFLE
IPC: F16D41/30
Filed: 1917-07-30
Abstract: 112,105. Ellett, F. S. July 30, 1917. Clutches, ratchet.-In free-wheel clutch fittings for cycles, &c., rocking, pawls 15 and teeth 18 are arranged at one end of a space between the driving and driven members 16, 10, balls, fed through an opening 19, 20 to ball races 12. 17, being arranged at the other end. Side plates 22, 25, one with an annular depression 23 entering the ball space, complete the clutch.
Patent GB-748501-A (GB)
Title: Improved thermally operated electrical circuit breaking device
Inventor: HELLER FRITZ
IPC: H01H37/52
Filed: 1953-04-21
Abstract: 748,501. Thermal switches. MORPHY- 'RICHARDS, Ltd. April 21, 1954 [April 21, 1953], No. 10922/53. Class 38(5) [Also in Group XI] A switch, particularly for a hair dryer, comprises a blade spring 7 normally held against a fixed terminal 13 by a bimetal strip 8 having a bent-over lug 11 normally overlying the spring 7. In the event of excessive temperature of the air passing the coils 1 of the dryer, the strip 8 flexes sideways and releases the spring 7 which flexes upwards to break the circuit. The switch may be reset by a suitable tool. The spring 7 has an insulating covering 15 to prevent contact with the coils 1. The spring 7 and bimetal 8 are mounted on one arm of a cruciform-section former 2 for the coils 1, the former 2 being mounted in a hair-dryer nozzle by eyelets 6.
Patent GB-400185-A (GB)
Title: Improvements in or relating to furnaces and the like and to the conveyance of goods therethrough
IPC: F27B9/20
Filed: 1932-04-18
Abstract: 400,185. Metal - heating furnaces. SMALLWOOD, A. and FALLON, J., British Mills, Cornwall Road, Smethwick, near Birmingham. April 18, 1932, No. 11007. [Classes 51 (i) and 51 (ii).) Charges, conveying; combustion products, returning to furnaces.-In a furnace for heating metal plates, sheets, &c., having a conveyer device for imparting a step-by-step forward movement to the articles, the hearth c of the heating chamber a is formed with longitudinally and transversely spaced slots d through which are adapted to project fingers g mounted on a carriage e disposed below the hearth. The wheels h of the carriage run on short rails i secured to longitudinal girders k, the carriage and the girders being separately reciprocated by pivoted levers m, n actuated by eccentrics on a motor-driven shaft o. Vertical movement of the girders k, and consequently of the carriage e and fingers g, is effected by rocking- lever mountings l. The fingers g may, during their conveying stroke, either actually support the charge or be so shaped as to project upwardly between rows of articles, such as bars or tubes, and cause them to roll or slide along the hearth. The space b between the hearth c and the carriage e is shut off from the atmosphere by oil seals f, and side wall flues u and ports v in the furnace crown are provided to permit the return to the heating chamber a of the gases which enter the space b through the slots d.
Patent GB-128602-A (GB)
Title: Control of Flying Machines.
Inventor: BACK WILLIAM EDWARD
IPC: B64C13/00
Filed: 1917-08-02
Abstract: 128,602. Back, W. E. Aug. 2, 1917. Steering and balancing.-In means for moving the ailerons of flying-machines simultaneously in the same direction. the shaft 2, which is rotated by lateral movement of the control lever 1 for adjusting the ailerons 10, 11 oppositely through connexions 6, 7, is mounted at one end on trunnions 22 and at the other end in a bearing 23 which may be raised or lowered in a slot 24 by means of a connexion 25 to the control lever. Fore-and-aft movement of the control lever thus moves the ailerons in the same direction, a spring 19 in the connexion 16 allowing this. The tail is simultaneously operated by means of a rod 4. Springs 12, 13 are provided in the connexions 6, 7, and a spring 27 connected to the control lever balances the action of the air on the ailerons. In a modification, the connexion 25 passes round a pulley on the shaft 2 and is connected at its ends to a yoke 33, Fig. 3, which is moved vertically within the control lever by rotation of a screw 39 by means of a head 40 fitted with a locking-device 42.
Patent GB-288441-A (GB)
Title: Manufacture of cyclic ketones of the aromatic series
Filed: 1927-04-26
Abstract: 288,441. Imray, O. Y., (I. G. Farbenindustrie Akt.-Ges.). April 26, 1927. Cyclic ketones are obtained by heating aromatic hydrocarbons or their homologues or substitution products with olefine carboxylic acids or their hydrogen halide addition products and an acid condensing agent in absence or pnesence of a solvent. In examples, (1) benzene is condensed with #-chloropropionic acid in presence of aluminium chloride, and the 1-indanone produced is separated by distillation; (2) a mixture of 4- and 6-methyl-1-indanones is similarly obtained from toluene; (3) 4- and 6-chloro-1-indanones are similarly obtained from chlorobenzene and are separated by crystallization, and corresponding products are similarly obtained from bromobenzene, o- and m-dichlorobenzene, m-dibromobenzene, and o-chlorotoluene; (4) benzene is similarly condensed with #-chlorobutyric acid to obtain 3-methyl-1-indanone; (5) a mixture of 4- and 6-chloro-3-methyl-1-indanones is similarly obtained from chlorobenzene; (6) 3 : 4: 8-trimethyl- 1-indanone is similarly obtained from m-xylene; (7) chlorobenzene is condensed with crotonic acid in presence of aluminium chloride to obtain the mixture of example (5); (8) 4: 6-dichloro-3- methyl-1-indanone is similarly obtained from mdichlorobenzene, and corresponding products are similarly obtained from o-dichlorobenzene, bromobenzene, and m-xylene; (9) naphthalene dissolved in nitrobenzene is treated with cinnamic acid in presence of 85 per cent sulphuric acid at 45‹ C., and the resinous mass of naphthylphenylpropionic acid produced is treated in nitrobenzene solution with phosphorus pentachloride and aluminium chloride, and the cyclic ketone obtained is purified by boiling with sodium carbonate solution, distillation in vacuo, and re-crystallization.
Patent GB-551940-A (GB)
Title: Improvements in and relating to footwear
IPC: A43B3/10
Filed: 1942-08-11
Abstract: 551,940. Protective over-socks. COOPER, B. Aug. 11, 1942, No. 11218. [Class 17 (ii)] An over-sock comprises separate toe, heel, and sole-pieces 2, 3, 1 of washable material with an elastic cord 4 secured around the whole or part of the foot opening. Instead of an elastic cord, elastic gussets may be inserted in the different parts.
Patent GB-768781-A (GB)
Title: Method and apparatus for bending glass
IPC: C03B23/025
Filed: 1955-04-19
Abstract: 768,781. Bending. glass. LIBBEY-OWENSFORD GLASS CO. April 19, 1955 [Nov. 10, 1954], No 11219/55. Class 56 In the bending of glass sheets 29 by passing them on shaping moulds 26 through a heated chamber 15 the bulk of the heating is supplied by radiant heaters 22 in the roof 16 which direct preformed beams of radiant heat on to the surface of the sheet. Selected heaters only are fired according to a predetermined pattern designed according to the type of bend to be effected. Additional heat is supplied by heaters 21 in the walls of the furnace below the moulds arid by batteries of burners 23. adjustable in position by the mechanism 39.
Patent GB-660410-A (GB)
Title: Improvements in or relating to a car coupler
IPC: B61G3/04
Filed: 1949-04-28
Abstract: 660,410. Automatic couplings for railway vehicles. NATIONAL MALLEABLE & STEEL CASTINGS CO. April 28, 1949. [May 29, 1948] No. 11303/49. Class 103(v). A car coupler of the type having a pivoted knuckle comprises a forwardly extending portion or shelf below the knuckle, said portion or shelf having a curved front or buffing surface located forwardly of the buffing face of said knuckle when the latter is in closed position. In Fig. 3 a shelf 20 is shown supporting at 42 a coupler shank which has been pulled out of its associated draught gear. The shelf includes a wall 28 cylindrically curved at 30 and a straight longitudinal portion 32 and is joined to the coupler by a cylindrical lug 38 and a flange 40. Fig. 5 shows a pair of couplers which are disaligned to the extent that they are beyond the normal gathering range of the wings 18 and complementary sockets 19. In this position the surfaces 30 of the shelves buff and slide along each other until the couplers are in a position suitable for normal coupling. Specifications 627.156 and 637,890 are referred to.
Patent GB-1006555-A (GB)
Title: Temperature-controlled fluid heater
IPC: B60H1/22
Filed: 1964-03-18
Abstract: 1,006,555. Electric air heaters. VAPOR CORPORATION. March 18, 1964 [May 17, 1963], No. 11375/64. Heading H5H. [Also in Division G3] A device for heating fluids, particularly gases being supplied to living spaces, e.g. an air circulating system, comprises a housing 11 formed by two cup-shaped metal portions 16, 17 joined at their peripheral overlapping flanges 23, 40 by bolts 41 and having inlet and outlet bores 30, 21, alternative normally-plugged bores 31, 22 being provided. The portion 17 has three rod-like projections 38 on which are mounted a conventional tubular electrical resistance heater 65 and a tube 67 which has an internal reflecting surface and is spaced from the housing 11 by sealing rings 43, 45 so that the fluid is forced to flow through the space between members 65, 67. The fluid temperature at the outlet is automatically regulated by a control circuit (see Division G3) including a two-bulb mercury thermostat carried by a mounting arrangement 13, and a controller 14 housing the various circuit components, e.g. adjustable potentiometer 96, indicating lamp 115 and relay for energizing the heater 65. The connection to the latter is taken through a mounting arrangement 33 to a terminal 36. Members 16, 17 may be mounted at various relative angular positions and mounting brackets 50, 60 for the housings 11, 88 respectively may be similarly adjusted, Fig. 5 (not shown).