baber/WOPTO huggingface dataset:
Patent GB-1336977-A (GB)
Title: Process for the preparation of 3-halophenyl 1,1-dialkyl ureas
IPC: C07C275/30
Filed: 1972-03-06
Abstract: 1336977 3 - (Halophenyl) - 1,1 - dialkyl ureas E I DU PONT DE NEMOURS & CO 6 March 1972 [20 July 1971] 10359/72 Heading C2C 3 - (Halophenyl) - 1,1 - dialkyl ureas of the general formula wherein R is a methyl or ethyl group, R<SP>1</SP> is an alkyl group of 1 to 4 carbon atoms, X and Z are each a hydrogen or halogen atom, and Y is a hydrogen or halogen atom or an alkyl or alkoxy group of 1 to 4 carbon atoms, with at least one and at most two of X, Y and Z being a halogen atom, by reacting a phenyl isocyanide of the formula with an amine of the formula under anhydrous solvent-free conditions, by the addition of the isocyanate to a stoichiometric excess of the amine, the reaction being agitated and being maintained at a temperature above the melting point of the substituted urea which is formed.
Patent GB-995845-A (GB)
Title: Improvements in or relating to nickel-base alloys
Inventor: HARRIS GEOFFREY THOMAS
IPC: C22C19/05
Filed: 1961-03-22
Abstract: A castable, creep-resistant nickel alloy has the following percentage composition, by weight: - .C.0.08- 0.25 .Mn.0 - 0.8 .Si.0 - 0.8 .Cr.15.5 -18 .W.6 -10 .Al.3 - 6 .Ti.3 - 6 .B.0.01- 0.1 .Zr.0.01- 0.2 .Co.8 -12 .Fe.0 - 5 .Ni.the balance
Patent GB-199862-A (GB)
Title: Improved cutter for generating the teeth of gear wheels
IPC: B23F11/00
Filed: 1922-04-12
Abstract: 199,862. Brown & Sons (Huddersfield), Ltd., D., and Brown, F. E. April 12, 1922. No Patent granted (Sealing fee not paid). Milling-cutters.-The teeth of worm, helical and spur gears, or of worms are generated by a continuously rotating cutter a having spiral teeth e whose cutting edges d', c<2> lie in a plane perpendicular to the axis of the cutter, the tooth flanks being so formed that any sectional plane e<1> perpendicular to the cutter axis gives cutting edges of true shape. The cutting face is recessed at d<1>, Fig. 3 and relieved at c<1> to give correct cutting angles. The flanks d, c of each tooth may be of slightly different pitch and the height of the spiral may gradually diminish in order to provide clearance. The cutters may be mounted as a gang. The cutter and blank are relatively positioned as in Fig. 4 for cutting worm wheels and as in Fig. 6 for cutting spur wheels, helical wheels being cut by altering the slope of the cutter spindle to the pitch circle tangent. The cutter is fed radially to the blank in Fig. 4, and in the direction of the arrow C in Fig. 6.
Patent GB-385171-A (GB)
Title: Improvements in cable grips
IPC: F16G11/00
Filed: 1932-04-12
Abstract: 385,171. Rope grips. RING, J., Trnovany, near Teplic. Czecho-Slovakia. April 12, 1932, No. 10482. Convention date, Nov. 21, 1931. [Class 78 (ii).] The grip comprises discs b<1>, b2 and a pair of jaws a. Each jaw has a part c shaped as an arcuate cam element which is received i n a n aperture in one of the discs. The discs are rotated in opposite directions to grip the rope by a pair of links d connected to a shack'e f. The jaws may be retained in operative position by a pin inserted in apertures in the discs. The discs may be rotated by screw-and-nut or wedge mechanism.
Patent GB-566260-A (GB)
Title: Improvements in or relating to drives for valves and the like
IPC: F16K31/05
Filed: 1943-06-29
Abstract: 566,260. Valves. IGRANIC ELECTRIC CO., Ltd. June 29, 1943, No. 10518. Convention date, June 29, 1942. [Class 135] In an operating unit for a valve or the like, a casing 12 with a skirt 15 resting on and secured to the valve yoke 5, has bearings 17, 19, rotatably supporting an elongated nut 4, which engages an axially movable non - rotatable threaded stem 3. A worm-wheel 9 driven by gearing from a motor carried by the casing, has a hub provided with a splined opening receiving a splined portion of the nut, the arrangement being such as to give limited lost motion and allow limited axial movement of the nut. A member 29, prevented from rotation by arms 36 engaging slots 37 in the skirt 15 and moving axially with the nut, is acted on by springs 28. As in Specification 541,717, the worm-wheel 9 may alternatively be driven from a hand wheel 10, and limit switch mechanism may be provided.
Patent GB-363258-A (GB)
Title: Improvements in and relating to mercury arc rectifiers
IPC: H01J13/20
Filed: 1931-04-09
Abstract: 363,258. Mercury-vapour rectifiers. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.-(Assignees of Allgemeine Elektricitõts. Ges.; 2, Friedrich Karl-Ufer, Berlin.) April 9, 1931, No. 10522. Convention date, April 9, 1930. [Class 39 (i).] An anode shield comprises a solid tube d, Fig. 2, within which is mounted a coaxial tubular openwork grid e extending to the mouth of the shield. The part f of the grid surrounding the anode may be solid. The grid may consist of equidistant plates k, Fig. 5, or of longitudinal strips supported by studs l. Additional perforated grids g, Figs. 3 and 4, or solid grids h, Fig. 4, may be mounted within the grid f. The grids may be connected to or insulated from the shield.
Patent GB-105435-A (GB)
IPC: F16C3/14
Abstract: 105,435. Beardmore, Sir W., and Pullinger, T. C. W. May 5, 1916. Oil-hole closures.-The ends of lubricating-passages bored in crank-pins, crank-shafts, and other parts of aeroplane engines &c. are closed by thin plates B engaging conical seatings A<4> at the ends of the bore A<1>, and secured by a central bolt and nut C. The plates B are cup-shaped, as shown, and project into the bore to reduce to a minimum the capacity of the space in which oil can collect. In the case of a bore open at one end only, the bolt extends through the bore and screws into the closed end.
Patent GB-527364-A (GB)
Title: Improvements in or relating to heels, or methods of, or apparatus suitable for use in, fitting heels to shoes
IPC: A43D33/00
Filed: 1939-04-05
Abstract: 527,364. Fitting heels to shoes. BRITISH UNITED SHOE MACHINERY CO., Ltd., HAZELTON, G., and JAMES, C. H. April 5, 1939, No. 10577. [Class 17 (i)] Relates to shoes having heels with V-grooves at the upper end of the breast engaging skived ends of short outer soles, as described in Specification 421,882, and consists in means ensuring that even where the sole is thinned at its edge, the groove will fit the sole without gaps at the sides of the heel. A member 119 having a projection 121 is carried with some friction by pivots at the upper ends of links 135 which can be swung by a treadle. The projection is inserted into the V-groove at the upper end of the heel breast of a heel positioned by a gauge 127. The heel is then compressed causing the groove to take the shape of the projection and thus fit the thinned end of the sole. For bevelling the edge of a sole thinned at its sides, the machine described in Specification 510,533 is provided with a sole supporting plate having two projections 149 underlying the marginal portions of the sole. Bevels 153 provide clearance for the knife. The plate ensures a substantially straight edge to the bevel. Specifications 412,599, 447,329 and 454,097 also are referred to.
Patent GB-575022-A (GB)
Title: Improvements relating to variable speed driving and reversing gear or mechanism for motor vehicles
IPC: F16H9/24
Filed: 1944-06-05
Abstract: 575,022. Variable speed gearing. BOMFORD & EVERSHED, Ltd., and BOMFORD, D. R. June 5, 1944, No. 10742. [Class 80 (ii)] [Also in Group XXXI] A variable speed and reversing gear for slowmoving vehicles, such as rollers or tractors in which the engine is disposed transversely in the frame, comprises a plurality of different size sprockets 8, 8a, 8b, on the engine shaft 6a, any one of which drives a chain 9 according to the speed ratio desired. The chain 9 drives sprockets 10, 11 on transverse counter-shafts 12, 13 respectively in opposite directions and is tensioned by a jockey sprocket 17 on a pivoted arm 18. The shafts 12, 13 carry freely running sprockets 21, 22 which can be clutched to their respective shafts to provide a forward or reverse drive to the road wheels 31, through either chain 23 or 24 to sprocket 25 on a transverse shaft 27 which gears through pinion 32 to spur wheel 33 fixed to the road wheel axle. The gear ratio desired must be selected by shifting the chain whilst the vehicle is stationary, but the change from forward to reverse or vice versa can be effected whilst the engine is running by suitable clutch devices (not shown) on the counter-shafts 12, 13.
Patent GB-138510-A (GB)
Title: Improvements in or relating to web-printing platen presses
IPC: B41F1/00
Filed: 1919-05-01
Abstract: 138,510. Waite, F., and Waite & Saville. May 1, 1919. Platen machines.-A web-printing platen press, of the kind provided with two platens and a rocking frame 5 carrying corresponding type-beds, is arranged for " perfecting " by passing the web 8 over a guide-roller 9 situated at the inside edge of the first platen 2, then backwards over the platen 2 on which it receives its first impression, and then around rollers 10 - - 13 arranged in a frame 16 which is constructed to keep the web clear of the rocker 5, the web finally passing through the rocker and over a roller 14 arranged to guide the web in a forward direction over the second platen 3 and in the same plane as the platen. The roller 12 is adjustably mounted so as to permit the second impression to be made in correct register.
Patent GB-693324-A (GB)
Title: Improvements in or relating to change speed gears
IPC: F16D23/06
Filed: 1951-05-08
Abstract: 693,324. Toothed clutches. FIAT SOC. PER AZIONI. May 8, 1951 [May 9, 1950], No. 10828/51. Class 80 (ii). In a toothed clutch for a motor-vehicle gear box comprising a sleeve 4 splined on the gear shaft 1 and movable axially so as to engage its internal teeth 5 with external clutch teeth 8 on a gear 2 loose on the shaft, the flanks 9 of the teeth 5 are formed with recesses 10 which, in the engaged position of the clutch and under torque, receive the teeth 8 and so prevent declutching until the torque is relieved. The ends 13 of the teeth are doubly tapered, to facilitate engagement, and a friction synchronising ring 3 is fitted.
Patent GB-461471-A (GB)
Title: Improvement in continuous casting of metal shapes
IPC: B22D11/128
Filed: 1936-04-15
Abstract: 461,471. Casting-machines. THURSTON, A. P. (White, J. J.) April 15, 1936, No. 10858. [Class 83 (i)] In continuous casting the metal or alloy is brought substantially to the solidifying temperature by withdrawing the superheat through the mould walls and the latent heat is withdrawn through the previously solidified metal. The graphite mould 17, Fig. 5, is arranged in the wall of a furnace 1 and is surrounded at one end by a block 18, which may also be of graphite, and has sufficient surface to dissipate the superheat of the particular metal at the rate of feed employed. At the other end the mould is insulated by a sleeve 19 of refractory material so that the latent heat is removed axially by a stream of water 48, Fig. 1. In a modification flow of heat from this end of the mould is controlled by surrounding it with a regulable electric heater. The solid metal is withdrawn by a roller 44, driven through reduction gearing 41 by an electric motor 40, and may be aligned by rollers 20... 23 carried by spring-pressed levers 24...27. A gas burner 20<1> may be used to prevent oxidation of the mould and this may contain a mandrel if a tube is to be cast. The metal may be stirred mechanically or electrically if there is a tendency to segregation.
Patent GB-436453-A (GB)
Title: Improvements in or relating to sewing machines
IPC: D05B67/00
Filed: 1934-04-11
Abstract: 436,453. Sewing-machines. BRITISH UNITED SHOE MACHINERY CO., Ltd., Belgrave Road, Leicester.-(Assignees of United Shoe Machinery Corporation; 140, Federal Street, Boston, U.S.A.) April 11, 1934, No. 10874. Convention date, April 12, 1933. [Class 112] The curved hook needle 2 of a boot-sewing machine is lubricated by a brush 22 reciprocating to and from the needle to make lubricating contact therewith at the limit of the retracting stroke of the needle. The brush is actuated in proper timed relation with the needle by a cam 32 on the driving shaft 8 and a follower connected to the lubricating brush by a Bowden wire mechanism. An adjustable connection is provided between the wire 26 and the plunger 30 of the follower. The brush is fed with lubricant from a pot 40 and tube 42.
Patent GB-375908-A (GB)
Title: Improvements in or relating to ladders
IPC: E06C1/12
Filed: 1931-04-13
Abstract: 375,908. Ladders. TESTER, G. E., 8, North Road, Bromley, Kent. April 13, 1931, No. 10904. [Class 20 (ii).] A sliding extension ladder is provided with a positively - actuated locking device which maintains the ladders in extended position under tension. The lock is formed of interconnected hooked rods 19 one of which is provided with an extension 22 for engagement by one end of a rope 24 which passes up over a pulley 14 at the upper end of the fixed ladder section and down to the end of the moving ladder section where it is fixed. The sliding ladder section is raised by hauling on the rope and when in extended position the other part of the rope is pulled to raise the lock to engaging position, so that when the sliding ladder section is released the hook will engage a rung of the fixed ladder section. To prevent unrestricted movement of the lock it is restrained by spring washers or a spring catch 27 fixed to the side of the ladder.
Patent GB-474890-A (GB)
Title: Improvements in and relating to electric discharge devices
IPC: H01J13/38
Filed: 1937-04-16
Abstract: 474,890. Discharge apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. April 16, 1937, No. 10960. Convention date, April 16, 1936. [Class 39 (i)] A semi-conducting starting electrode which dips permanently into the liquid cathode 5, Fig. 2, has a circular cross-section and comprises a plurality of portions which project into the cathode and have diameters progressively less than the diameter of a portion 27 which is located outside the cathode. The electrode may consist of tungsten carbide or silicon carbide mixed with clay or of 55 per cent silica flint or quartzite, 25 per cent clay and 20 per cent graphite mixed with water to form a paste and then moulded or extruded through a die. The rods are baked in graphite powder in a hydrogen furnace to about 1300‹ C. and subsequently shaped by grinding. The electrode is supported on a stem 14, Fig. 1, by a holder 11 swaged or welded to a rod 12 which may be screened by a member 13. Current is supplied to a load resistance 15, shunted by a smoothing condenser 16, through the device 1 which is provided with a mercury, gallium or tin cathode and a graphite or metal anode 7. Starting impulses are supplied to the electrode 10 through a limiting resistance 18 and a thermionic valve 17, the discharge through which is controlled by a grid 21. A negative potential supplied to the grid through a resistance 23 from a battery 22 may be dissipated by a switch 25 to allow a discharge to pass. The Specification as open to inspection under Sect. 91 states also that a conical starting electrode may be used. This subject-matter does not appear in the Specification as accepted.
Patent GB-218772-A (GB)
Title: Improvements in or connected with sparking plugs
IPC: H01T13/36
Filed: 1923-04-23
Abstract: 218,772. Heath, A. E. April 23, 1923. Sparking-plugs. - The edges 3, 4 of the enlargement 2 on the insulator are rounded or chamfered, leaving untouched the greater part of the plane ends of the enlargement. Pressure is exerted by the gland 5 either directly on the rounded of chamfered edge, or through the medium of a washer, preferably of copper or aluminium. Adjacent to the lower seating 6, an annular groove 12 is formed to receive the lower end of the gland nut. Instead of using a gland nut, the outer end of the casing may be spun over, or a metallic ring may be pressed on to the shoulder or washer and simultaneously deformed to fill a groove in the outer end of the casing.
Patent GB-1460862-A (GB)
Title: Testing and collecting device
IPC: G07D5/02
Filed: 1974-03-12
Abstract: 1460862 Testing coins INTERNATIONAL STANDARD ELECTRIC CORP 12 March 1974 [16 March 1973] 10985/74 Heading G4U A device for mechanically testing coins for minimum thickness and/or minimum diameter includes a passageway 11 in a housing 1 which also includes a double-armed test lever 4, one arm, the upper arm, of which is arranged to urge a coin M against part of the housing, the second arm is arranged to take up an angular position with respect to the passageway dependent upon the size of the coin, thereby forming between a gap 17 whose width is inversely proportional to the diameter and thickness of the coin and through which coins of too small a thickness and/or diameter can pass. As shown gap 17 is formed between lever 4 and a sizing member which is a lower portion of a release lever 2. The upper arm of lever 4 is urged against the housing by a force 7 and/or a force 28. If a coin is too thin or has a small diameter cam 4 pivots clockwise to open gap 17. The coin falls through the gap and is diverted to return shoot 22 by guiding device 5. If a coin has a much reduced diameter it will fall into recess 27 thus allowing lever 4 to pivot by an even greater amount. If a coin is satisfactory it activates contact 6 via pin 19. This arrangement may be replaced by suitable microswitches, inductive, capacitive, photoelectric or mechanical switching means. Contact 6 delivers a control signal which clears the apparatus. If no service is provided device 5 will get no switching pulse to open channel 21 and when the coin is released it will pass along channel 22. Provision of a service provides a counting pulse to device 5 to move it so it covers channel 22. Release of the coin is by pin 9 being freed downwardly so that lever 2 pivots anticlockwise against restoring spring 25. In another embodiment the release lever 2 is dispensed with and lever 4 is moved bodily to the left by say a cam for coin release. In a further embodiment a storage space 18 is provided when operation of an apparatus requires several coins. Testing of each coin is carried out in the same way. The release lever has extended edge 20 on which the coins in the storage space rest. A slide urged in the coin feeding direction, may be provided for feeding coins into the test space. Lugs may be provided within the housing which project resiliently into the passageway for allowing coins to pass in a required direction only.
Patent GB-678975-A (GB)
Title: Electrical insulation resistance measuring apparatus
Inventor: CATTANES EDWARD
IPC: G01R27/02
Filed: 1950-05-04
Abstract: 678,975. Insulation resistance measuring. ENGLISH ELECTRIC CO., Ltd. May 4,1951 [May 4, 1950], No. 11008/50. Class 37. In apparatus for measuring insulation resistance an adjustable D.C. voltage is derived from a radio frequency oscillator valve V1 by rectification at V2, and filtering at R1, C1, C2, and is fed to the apparatus to be tested via a selected one of a number of resistors R2 over terminals B, C. The potential drop across R2 and that from a potential divider D connected across the source are connected alternatively by a switch S, to a valve V3 in a bridge circuit whose unbalance current, measured on a meter M, is indicative of these voltages. The resistor R2 is shunted by a biased diode V4 to prevent excess voltages reaching the bridge valve voltmeter and to determine the degree of ionization in the test specimen, the A.C. voltage drop across a series resistor R3 is fed to a loudspeaker LS via an amplifier F. To eliminate the effect of surface leakage from the measurement, a terminal G connected directly to the negative line is connected to the surface of the test specimen. Terminal E connected to the negative line via condenser C3 and resistor R8 is for earthing the specimen. To guard against ill effects from earthing the positive terminal B, a second anode (not shown) of diode V4 is connected to terminal E.
Patent GB-234614-A (GB)
Title: Improvements in hydraulic valves
IPC: F16K39/04
Filed: 1924-05-05
Abstract: .234,614. Crowe, H. May 5, 1924. Rotary disc valves. - A multiple-way rotary disc valve particularly adapted for hydraulic work is provided with hydraulic means whereby the varying forces on the working faces of the valve are automatically balanced while the valve is in motion and unbalanced when the valve is stationary. In the form shown in the Figures, the valve member G is carried by a spindle E provided with a balancing piston F and extending through the lower part of'the casing. The chamber C is connected to a source of pressure through a pipe B and non-return valve D and is connected through a passage T with a ram cylinder J carried by the valve spindle. The actuating lever is mounted between a pair of pivots l<1>, l<2> and bears on a ram K so that as the lever is operated to open or close the valve it moves from one or other of the pivots and operates the ram K to increase the pressure in the balancing chamber and so ease the valve from its seat. In a modification the ram actuates supplementary valves controlling the supply and exhaust of fluid from the balancing chamber. In a further modification a flexible chamber filled from a reservoir carried by the spindle is used, a ball bearing being provided to take the end thrust. When applied to a valve actuated by power cylinders the control valve is provided with an additional port whereby the pressure existing on one or other of the actuating cylinders is communicated to the balancing chamber.
Patent GB-1504984-A (GB)
Title: Micro-chamber for electron optical examinations
IPC: G02B21/00
Filed: 1975-03-17
Abstract: 1504984 Specimen chamber for electron microscopy NOVEX FOREIGN TRADE CO Ltd 17 March 1975 [28 March 1974 31 May 1974] 11015/75 Heading G1B A micro chamber for holding a liquid or wet specimen for electron optical examination comprises a casing 1 having at least one entrance bore 2 and optionally one or more exits 3, a specimen holder 4 located in the casing 1, a pressure balancing buffer system 8 to retard evaporation of a specimen held by the holder and cooling means such as liquid nitrogen jacket 9 spaced from and at least partially surrounding the casing 1. A tank 14 of coolant may be provided to cool specimen holder 4. Optional features are an inlet tube (17) into the chamber for introduction of reagent, Fig.4 (not shown), the inlet tube optionally having a flat extension (61) for smearing the specimen over the holder, Fig.2 (not shown), and a temperature regulator (13) for use in controlling the temperature of the specimen and a temperature regulator (12), Fig.2 (not shown), for controlling the freezing of the specimen.