baber/WOPTO huggingface dataset:
Patent GB-691021-A (GB)
Title: Improvements in files or folders for papers
IPC: B42F13/06
Filed: 1951-02-23
Abstract: 691,021. Filing papers. YIP, P. Y. Feb. 23, 1951. No. 4491/51. Addition to 667,847. Class 146 (i).. A file or folder as in the parent Specification is provided with a further pair of holes 7, 8 in the side carrying the retaining strip 11 gauged so that an additional elastic loop 18 can pass therethrough and over the ends of the strip 11 for engagement with the knob 12, 13 or projection whereby the ends of the strip are urged towards the inner surface of that side. The file has two sets of holes 7, 9, 10, 8 and 7a. 9a, 10a, 8a at right angles to hold papers punched on either edge, and the strip 11 has recessed ends for positioning the loop 18. Cords 14, 15 are secured adjacent each hole 9, 10 so that they can be joined temporarily as by knotting or by a slip catch, to the loop ends 17 passing through the holes to form a closed ring to be utilised for detaching or adding papers at any desired point. The cords 14, 15 are secured in the back 3 of the file by gumming between laminae of a filling piece 16.
Patent GB-651646-A (GB)
Title: Improvements relating to the recovery of the unsaponifiable fractions of oleaginous materials
Filed: 1948-02-17
Abstract: The unsaponifiable fraction is obtained from naturally occurring oleaginous material of vegetable or animal origin which does not contain vitamins by saponifying, e.g. with potassium hydroxide to form a soap mass, extracting the soap mass with a hydrocarbon or halogenated hydrocarbon solvent, e.g. ethylene dichloride or a mixture of such solvents, while maintaining the temperature of the solvent and soap between about 40 DEG  C. and just below the boiling-point of the solvent, and separating the warm solvent extract from the warm soap, the process being characterized in that the water-content of the soap during the extraction is maintained at such an amount that the soap is slightly soluble in this solvent, i.e. the soap is less than 1 per cent soluble in the solvent.  Specified as a starting material is wool grease.  Detailed examples are given. Specification 550,845 is referred to.
Patent GB-557321-A (GB)
Title: Cable oil and insulating material impregnated therewith
IPC: H01B9/06
Filed: 1942-04-08
Abstract: 557,321. Hydrocarbons ; electric insulation. FIFE, J. G: (Shell Development Co.). April 8, 1942, No. 4623. [Class 2 (iii)] An electrical insulating cable oil consisting essentially of a mixture of poly tertiary alkyl naphthalenes substantially free from primary and secondary alkyl radicals is formed by reacting naphthalene with tertiary base olefines such as isobutylene, diisobutylene, triisobutylene, methisobutylenes, the product of polymerizing isobutylenes with sulphuric acid (hot acid octylenes), tertiary alkyl chlorides, and tertiary alcohols in the presence of a Friedel- Craft or other alkylating catalyst. The ratio of alkyl radicals to naphthalene should be greater than 2 and preferably between 3 and 5. Mixtures of oils are produced which are then subjected to high vacuum fractional distillation to produce fractions boiling respectively below and above 200‹C. at 3 mm. mercury. The lower fractions have a low viscosity index and a dielectric strength of about 35-40 kV. The heavier fractions have a very low viscosity index, being extremely viscous or semi-solid at ordinary temperature and very fluid at slightly elevated temperature, and a dielectric strength of about 50 kV. According to examples, naphthalene is reacted respectively with hot acid octylenes and with diisobutylene in the presence of aluminium chloride and the products fractionally distilled at a pressure of 3 mm. to give products having a viscosity index varying from 65 to -418 and a dielectric strength of about 40 kV. The residues from the distillation were further distilled at lower pressures down to 0.05 mm. giving products of viscosity index about -1230 and dielectric strength about 50 kV.
Patent GB-525041-A (GB)
Title: Improvements in devices for gripping sheet material for riveting and like operations
IPC: B25B31/00
Filed: 1939-02-13
Abstract: 525,041. Riveting &c. AVIATION DEVELOPMENTS, Ltd., MOXHAM, H. G., and BETTINGTON, E. M. Feb. 13, 1939, No. 4661. [Class 83 (iv)] A plate-clamping device for use in connection with riveted or bolted joints comprises an abutment member 11 housing a claw member 14 adapted to hold the plates against the abutment member under the pressure of a spring 18. The claw is formed on the flattened end of a plunger 13 and passes through a slot in the member 11 which has segmental projections 23 one on each side of the claw to act as a locating spigot. The top of the member 11 is formed with projecting finger pieces for use in conjunction with a thumb piece 25 for compressing the spring.
Patent GB-681661-A (GB)
Title: Treatment of chemical pulp
IPC: D21C9/16
Filed: 1951-02-26
Abstract: Sulphite pulp is bleached by adding thereto alkaline peroxide solution until the fibre density is 20-65 per cent, the peroxide content (calculated as H2O2) is 0.3-1.75 per cent and the alkali content (calculated as NaOH) is 0.75-3.25 per cent, based on dry pulp; the fibres are maintained damp at a density above 20 per cent and a temperature below 130 DEG  F. until maximum brightness is obtained, e.g. 1-20 days.  Typical concentrations are H2O2 0.75-1.25 per cent and NaOH 1.0-2.5 per cent, when the time needed is 2-14 days.  The peroxide solution is applied to pulp crumbs or to a self-supporting lap or web by normal methods, e.g. spraying or padding.  The fibres are stacked or piled in close contact during bleaching to prevent drying out.  Examples are given of the process and results are compared with those obtained by prior-art methods. Graphs are given of the cuprammonium viscosity of the product when different alkali concentrations and temperatures are used in bleaching.  The peroxide solution may be obtained from sodium peroxide, hydrogen peroxide or other inorganic compound which generates hydrogen peroxide (e.g. a perborate) by adding acid or alkali as necessary.  A stabilizer is preferably added, e.g. sodium silicate, alkali phosphate or pyrophosphate or a soluble magnesium salt.  This will contribute to the total alkali concentration of the solution.  The process is applicable to soft, medium and hard cooked pulps, from soft or hard woods, whether cooked with calcium, magnesium, ammonium or mixed base liquors.
Patent GB-430838-A (GB)
Title: Improvements in or relating to wind actuated mascots for road vehicles
IPC: A63H33/40
Filed: 1934-02-13
Abstract: 430,838. Mascots for vehicles. TURNER, H. J., 205, Romford Road, Forest Gate, London. Feb. 13, 1934, No. 4714. [Class 132 (iii)] In a wind-actuated mascot for road vehicles, the wind planes or wings W, Fig. 1, are attached to the body A by flat springs C. The springs extend at any desired angle from the body and are riveted to the wings preferably at the ends of longitudinal slots S, or a single spring may be used attached centrally to the body. In a modification, Fig. 3, the wings are formed of flexible material and themselves constitute the springs, slots M being provided near their points of attachment to increase their flexibility.
Patent GB-635710-A (GB)
Title: Hydraulic motors or jacks incorporating locking and pressure release mechanism
Inventor: ASHTON BENJAMIN N
IPC: F15B15/26
Filed: 1947-02-18
Abstract: 635,710. Hydraulic jacks. ELECTROL, Inc. Feb. 18, 1947, No. 4719. Convention date, Feb. 25, 1946. [Class 69 (ii)] [Also in Group XXX] A hydraulic motor or jack comprises a piston in a cylinder with cooperating locking members on the piston and the cylinder for locking the piston at one end or at either end of the cylinder, in which at one end or at each end of the cylinder adjacent to the locking member on the cylinder, a normally closed valve is interposed between an outlet port and the pressure supply, and an operating member for the valve is so disposed that, when the locking members of the piston and the cylinder coact, the valve-operating member is engaged by the piston and actuated to open the valve so as to relieve the pressure acting on the piston. The locking is effected by a projection 40 on a spring-loaded locking member 34 or 35 engaging the piston 20 and forcing balls 26 or 27 into a recess 33 or 30 in the cylinder 10. In order to supply pressure to move the piston, two end caps 11 and 12 have inlet and discharge ports. A port 46 may be connected through a selector valve to a pressure source and a port 49 to a return line for the system. A flange 38 is positioned between the end of the cap 12 and the port 47, and flanges 36, 37, disposed on opposite sides of the port 49 to prevent direct communication between port 49 and ports 46, 47, but permitting liquid to be introduced into the cylinder 10 between the piston 20 and the locking member 34. The port 52 is connected to a return line and the port 51 (not shown) through the selector valve to a pressure source and port 47. Port 50 (not shown) is connected to port 46. A valve 56 in the looking piston extends beyond the projection 40 when the valve is sealed. When the locking member 34 is moved to the left by the piston 20, the valve 56 is unseated and connects the ports 47 and 49. Since the port 47 is connected to the pressure port 51 and the port 49 to the return line, the liquid is byepassed from the interior of the cylinder 10 to the return line, hence relieving the pressure on the piston 20. Unlocking is effected when liquid admitted through the port 46 urges the piston 20 and the locking member 34 apart, whereby the balls are released inwardly and the piston 20 forced to the opposite end of the cylinder. In a modification, Fig. 6, the locking means are fitted to one end of the device only and a tubular pistonrod 81 slidable within and relative to the piston 77, is fixed to the end cap 71 and has a second piston 86 and piston-rod 85, slidable within itself and extending through the cap for attachment to a weight to be lifted.
Patent GB-1455323-A (GB)
Title: Cutting means
IPC: B26D7/26
Filed: 1974-02-01
Abstract: 1455323 Shearing SEMPERIT AG 1 Feb 1974 [6 Feb 1973] 4754/74 Heading B3W A shear, particularly for cutting rubber strip with longitudinally disposed wires embedded in it, comprises an upper blade 6 movable by cylinders (18), 19 to co-operate with a blade 3 in a holder 2. The holder 2 is mounted at 8, 9 on a fixed member 4 for pivotal movement about an axis parallel with the blade edge and is urged to pivot about that axis to move the blade towards the upper blade during the cutting action. The blade may be urged by a compressible tube or, as shown, by pressure cylinders 15. The holder 2 is supported by springs 16. The upper blade pivots during the cutting stroke and the cutting point moves along the blades which diverge, in plan view, by an angle (#), Fig. 3, in the direction in which the cutting point moves. Rubber material being clamped at 30 is thus stretched during cutting and pulls away from the blade edge progressively as cutting takes place. The angle α between the direction of motion of the blade 6 and a line passing through the pivot 8, 9 and the cutting edge of the blade 3 is 22 degrees as shown; the stated range of angles is 15-30 degrees. The angle # subtended by the cutting faces 13, 14 during cutting is just under 180 degrees. The blade 6 is guided by runner(s) 29 and 17 on the shear frame 28 and the blade holder 2 respectively.
Patent GB-525123-A (GB)
Title: A remote control installation operating according to the impulse method with a protective device against incorrect switching due to foreign or disturbing impulses
IPC: H04Q9/04
Filed: 1939-02-14
Abstract: 525,123. Electric selective signalling systems. LANDIS & GYR AKT.-GES. Feb. 14, 1939 No. 4820. Convention date, July 21, 1938. [Class 40 (i)] In a system using synchronous distributers at the transmitter and receivers; impulses due to disturbance in the line operate a relay at the transmitter which prevents effective operations at the receivers. Normal operation of the system. As shown, the transmitting and receiving distributers at I and II respectively are arranged to make selections in positions 17, 18 and to effect the operation in the last position 30, selection being effected by operating one or other of two two-position relays V17, V18 which control the circuits of a twoposition relay F. Assuming start key ta and key W17 for reversing the position of relay F are thrown, relay A pulls up to start the transmitter motor Sy and S operates over the normal contact of the distributer to transmit an impulse derived from one of the supply connectors 1-4, over wire 5 to relay E1 at the receiver to start the synchronous motor Sy1. The motors are maintained over off-normal contacts n, n1. When the transmitter passes position 17, relay S again pulls up to transmit an impulse to E1 which operates relay V17 and a second impulse similarly transmitted in position 30 energizes the selector winding of relay F. Just before the completion of a revolution contacts r, r<SP>1</SP> at the transmitter and receiver close opposing windings of relays A, V17 to restore them and their contacts n, n<SP>1</SP> open the circuits of the motors. Effects of disturbing impulses in wire 5. Relay E at the transmitter and relay E1 at the receiver and any other receiver connected to the circuit pull up. At the transmitter, the transmitting relay S is disconnected and a relay Sp disconnects the operating circuit from contact 30 and connects it to contact 29. A disturbing impulse in position 17 is ineffective since S is operated and opens the circuit of E but if such an impulse occurs in position 18, relays E, E1 at the transmitter and receiver are operated thereby and selecting relay V18 is energized, but when the distributers reach position 29, transmitting relay S pulls up followed by receiving relay E1 which energizes opposing windings of V17, V18 to restore them. The final operating impulse is not transmitted. The contact r at the transmitter then restores relay Sp in addition to its previously described functions, the contact r1 at the receiver closing without effect since V17, V18 have already been restored. If a disturbing impulse occurs when the system is in the normal condition, the transmitter and receiver are started up by relays E and E but they rotate ineffectively since Sp at the transmitter also operates with results as previously described.
Patent GB-1248287-A (GB)
Title: Differential amplifier circuits
IPC: H03G3/00
Filed: 1969-01-29
Abstract: 1,248,287. Multipliers. TEKTRONIX Inc. 29 Jan., 1969 [29 Jan., 1968], No. 4852/69. Heading G4G. [Also in Division H3] A four quadrant multiplier utilizing a differential amplifier (see Division H3) comprises a long-tailed pair of transistors 66, 68 with a further transistor 70 and common impedance, the M-signal input being applied to the base of transistor 66. Each of the transistors 66, 68 drives the emitters of a pair of transistors 72, 74 and 76, 78 respectively, the collectors of which are cross-coupled to resistive output loads 80, 82. A further pair of transistors 88, 90 are also connected as a long-tailed pair and the N signal input is applied to the base of transistor 88. The collector circuits of transistors 88, 90 comprise the emitter paths of transistors 96, 98 respectively and drive the bases of transistors 74, 76 and 72, 78 respectively.
Patent GB-1521645-A (GB)
Title: Composition for inhibiting tobacco axillary buds
IPC: A24B3/18
Filed: 1977-02-07
Abstract: 1521645 Inhibition of tobacco axillary buds KAO SOAP CO Ltd 7 Feb 1977 [23 April 1976] 04871/77 Heading C1B A composition for inhibiting tobacco axillary buds comprises 6-hydroxy-3-(2H)-pyridazinone or a salt thereof, and a surface-active agent of the polyoxyethylene sorbitol fatty acid ester type having the formula: where n1+n2+n3+n4+n5+n6 is 10 to 150 and none of n1 to n6 is zero, and at least one X is a straight or branched-chain saturated or unsaturated acyl group having from 8 to 22 carbon atoms, the remaining Xs being hydrogen atoms. The amount of active ingredient is preferably 0À05-1À5 wt. per cent and the amount of surfactant 0À3-5À0 wt. per cent. The composition may be in the form of an aqueous solution or suspension.
Patent GB-417826-A (GB)
Title: Improvements in sheet feeding means for receptacle body forming apparatus
IPC: B65H5/10
Filed: 1934-02-15
Abstract: 417,826. Feeding sheets. SEALCONES, Ltd., Victoria House, Southampton Row, London.-(Assignees of Lutz, G.; 64, Madison Street, Brooklyn, New York, U.S.A.) Feb. 15, 1934, No. 5055. Convention date, July 19, 1933. [Class 100 (i).] A sheet-feeding apparatus which is especially applicable for feeding blanks to a machine for forming conical cups on a mandrel 12, Fig. 1, comprises a pair of jaws, 86, 88 carried by rods or tubes 62 mounted on a reciprocating carriage 65, each pivoted jaw being mounted at one side of the transverse axis passing through its centre of gravity so that it normally engages the fixed jaw by gravity. The movable jaws are adapted to be moved away from the fixed jaws by the resistance of the edge of the blank to the movement of the jaws towards the blank b, and to be pressed into gripping position on the return movement of the jaws. The blanks b are positioned against an adjustable stop 53 on a support 50 and a pin 56 assists registration. The support 50 is formed with slots to permit the grippers to act on the blanks. The reciprocating carriage 65 is operated by a lever 69 actuated from a cam on a shaft 16, which is also provided with cams for operating levers 17, 28 which operate plungers 13, 27 which control the cup-forming mechanism 14, 24. This mechanism acts through a slot in a shelf 57 to which the blank is transferred by the jaws 86, 88. A blank-registering gauge 81 is fitted on the shelf 57, and the jaws move through slots in this gauge and through slots formed in the mandrel 12. The gauge strips the blank from the jaws. The fixed jaw 86 is formed with a bevelled front end 87, and with a vertical member 84, Fig. 3, which is straddled by and limits the movement of the pivoted jaw 88. This jaw is pivoted on a pin 90 and is formed with a bevelled front portion 93, and with a transverse ridge 92 to engage the blank effectively. A spring 94, Fig. 8, may be used to improve the grip. In a modified gripper, Fig. 9, the fixed part of the gripper 97, 96, 98 is U-shaped, and the pivoted part 99 is pivoted at 101 to the front of the member 98 with capacity of limited movement relatively thereto.
Patent GB-163137-A (GB)
Title: Improvements in and relating to artificial man ures
IPC: C05F7/02
Filed: 1920-02-19
Abstract: 163,137. Silberrad, O. Feb. 19, 1920. Manures.-A manure is made by mixing the waste liquor obtained in the manufacture of sulphite paper pulp with a substance known under the registered " Trade Mark " " Nitrolim " and granulating and drying the mixture.
Patent GB-874264-A (GB)
Title: Lubricating compositions
IPC: C22C9/08
Filed: 1957-02-14
Abstract: A metallic powder, for use in lubricating composition, is produced by melting copper and lead in the proportions of from 50-55% by weight copper and 50-45% lead, heating the melt to between 980 DEG C.-1035 DEG C., and casting the melt as fine droplets to chill and solidify them into particles.  The particles each have a proportion of less than one tenth micron in their largest dimension, contained within the copper crystals and have to pan through a fine sieve.  Further heat treatment of the particles is followed by passage through a ball mill.  U.S.A. Specification 2,384,892 is referred to.
Patent GB-100481-A (GB)
Title: Improvements in or relating to Escapement Mechanisms.
IPC: G04B15/12
Filed: 1916-04-07
Abstract: 100,481. De Long Escapement Co., (Assignees of Long, C. E. de). May 20, 1915, [Convention date]. Escapements. - T o allow delicate adjustment in the engagement of the pallets with the escapewheel, the pallet staff 5 carries the pallet lever 1 by a simple or compound eccentric 4, 6. Specification 100,229 is referred to.
Patent GB-678029-A (GB)
Title: An improved machine for cutting strip and like elongated material into predeterminedlengths
IPC: B23D25/12
Filed: 1950-03-02
Abstract: 678,029. Shearing. FOX & CO., Ltd., S., and HOWES, S. R. March 19, 1951 [March 2, 1950], No. 5318/50. Class 83 (iv). In a machine for cutting strip or wire into predetermined lengths the strip is passed between oppositely rotating members carrying co-operating cutting tools which are selectively actuated radially for severing selected lengths, the distance between the axes of rotation further being variable for adjusting the length cut. The strip is passed through feed rolls 24 and guides 23 to a pair of co-operating rolls 10 carrying cutting tools 11 which are normally yieldingly retracted by springs 18 and are selectively actuated to sever the work by a cam 19 on a fixed mounting 14 adjacent each roll. Each cam 19 is axially slidable along the mounting 14 and is selectively moved into its operative position by a pneumatic piston for cutting selected lengths of strip. The distance between the axes of the rolls 10 is altered by a hand-wheel 16 for fine adjustment of the length cut, the tools 11 being radially adjustable in holder 17 in the rolls by rack and pinion means to bring the tools into correct co-operative relationship. Specification 542,815 is referred to.
Patent GB-419849-A (GB)
Title: Improvements in the continuous direct rectification of crude petroleum or other hydrocarbons
IPC: C10G7/00
Filed: 1934-02-16
Abstract: <PICT:0419849/III/1> A process for the continuous rectification of crude petroleum or other hydrocarbons consists in heating the material to be treated under moderate pressure, subjecting the material to a rectification under this same pressure, drawing off the various fractions separately from the reflux liquids obtained by rectification, and subjecting each of the heavier fractions to an expansion whereby the lighter parts of these fractions are liberated as vapours which are then condensed and collected separately, the heavier parts being also collected separately, while the lighter fractions of the rectification are simply condensed and collected separately.  A pipe still B supplies crude petroleum vapour to a rectifying column A under a pressure of about 1 kilogram per sq. cm. The light fractions pass to coolers G<1>, G<2>, but the heavier fractions are led to expansion vessels D<3>--D<6>, at atmospheric pressure, the liberated vapours passing to condensers E<3>--E<6> and the remaining liquid portions passing to coolers G<3>--G<6>.  In a modified apparatus, the crude petroleum is first freed of its lighter constituents in a rectifier working at atmospheric pressure, and then passes to a pipe still and a second rectifier working under pressure. Vapours from the second rectifier may be used as a heating agent in the first rectifier.
Patent GB-103051-A (GB)
Title: Improvements in, and relating to, Sparking Plugs for Internal Combustion Engines.
Inventor: BACK ALBERT BURROWS
IPC: H01T13/24
Filed: 1916-04-11
Abstract: 103,051. Back, A. B. April 11. 1916. Sparking-plugs.-The insulation is formed with a recess b<4> and holes b<2>, and the central electrode is held against a seat b<1> by a spring e which yields on the suction stroke so that air is drawn in for cooling and cleaning the terminals.