baber/WOPTO huggingface dataset:
Patent GB-873463-A (GB)
Title: Compositions for the control of soil dwelling nematodes
Inventor: MEULI LLOYD JOSEPH
Filed: 1959-04-03
Abstract: A composition comprises 1,2,3-tribromopropane as the sole active nematocidal ingredient and from 15-90% by weight of the composition of acetone, toluene, methylene chloride, chlorobenzene or petroleum distillates, or from 99.9 to 50% by weight of a finely-divided inert solid or from 1 to 20% by weight of a surface-active emulsifying or dispersing agent.  If desired, the mixture comprising the surface-active emulsifier may be dispersed in aqueous solution and/or may contain a water-immiscible solvent for the 1,2,3-tribromopropane. Specified emulsifiers include alkylene oxide phenol or organic acid condensates, alkyl aryl sulphonates, polyoxyethylene derivatives of sorbitan esters, complex ether alcohols and mahogany soaps.  Dust compositions may contain talc, chalk, gypsum, bentonite, fuller's earth, attapulgite or exploded mica. The preferred solvent is a petroleum distillate boiling under 400 DEG F. at atmospheric pressure and having a flash-point above 80 DEG F.
Patent GB-115271-A (GB)
IPC: F01B25/00
Abstract: 115,271. Parsons, Sir C. A., Cook, S. S., and Kowe, R. May 3 1917. Addition to 12623/14. Condenser systems.-The condensing plant of the parent invention, comprising a condenser b evacuated by a vacuum augmentor f, h of the type described in Specification 840/02, a wet air pump m, and an auxiliary pump d in the conduit c, l leading the condensate from the sump a to the pump m, is provided with a pipe o through which air and vapour may leak from the upper part of the pump d to the suction of the augmentor or other part of the plant under lower pressure.
Patent GB-1111179-A (GB)
Title: Coin press
IPC: B44B5/00
Filed: 1967-03-13
Abstract: 1,111,179. Coining. L. SCHULER G.m.b.H. 13 March, 1967 [9 April, 1966], No. 11551/67. Heading B3Q. A coin-press comprises a segmental edgemilling ring 22 forced into a closed position against a frusto-conical surface 23 by a thrust member 18, and a spring 16 between the member 18 and a punch 2 so that continued movement of the punch to effect coining after the member 18 has closed the ring 22 causes compression of the spring. Upper and lower coining dies 3, 5 are provided, and the lower die also ejects the coins. The thrust member 18 is retained on the end of the punch 2 by a sleeve 14 centred by screws 15, and has recesses 21 for a blank-feeder (not shown). As the punch descends, the ring segments 22 are pushed away from a stop-ring 28, against the action of return springs 25, until the ring is closed.
Patent GB-756776-A (GB)
Title: Process for manufacturing n-carboxy acyl sulphathiazoles
IPC: C07D277/52
Filed: 1954-04-21
Abstract: N4-Carboxyacyl sulphathiazoles are prepared by reacting an alkali metal salt of sulphathiazole dissolved in an anhydrous neutral solvent of the ketonic or heterocyclic type at room temperature with a dicarboxylic acid anhydride, with subsequent treatment with aqueous mineral acid of the alkali metal salt of the required product so formed.  Acidification can be effected either at about 60 DEG  C. or at room temperature, the former being preferred.  Examples describe the preparation of the N4-succinyl- and N4-phthalyl derivatives of sulphathiazole, the solvent in each case being acetone. Tetrahydrofuran may also be used.
Patent GB-611252-A (GB)
Title: Improvements in or relating to method for the production of bactericides
Filed: 1946-04-16
Abstract: Bactericides are obtained from a substratum in which micro-organisms have lived by drying the substratum, with or without the micro-organisms, preferably by atomization, and then extracting the dry substance thus produced.  In obtaining penicillin from a substratum containing it, aluminium hydroxide or silica gel may be added, and the pH of the substratum preferably increased before drying.ALSO:Bactericides are obtained from a substratum in which micro-organisms have lived by drying the substratum, with or without the micro-organisms, preferably by atomization, and then extracting the dry substance thus produced.  In obtaining penicillin from the substratum obtained from growing Penicillium notatum on a culture medium consisting of glucose, sodium nitrate, mono potassium phosphate, potassium chloride, magnesium chloride, ferrous sulphate, and agar-agar or carragheen, substances, such as aluminium hydroxide or silica gel may be added, and the pH of the substatum is preferably increased before drying.
Patent GB-1009593-A (GB)
Title: Improvements in or relating to frequency changers
IPC: H03D7/04
Filed: 1964-03-19
Abstract: 1,009,593. Semi-conductor frequency changing circuits. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. March 19, 1964 [March 20, 1963], No. 11641/64. Heading H3T. In a frequency divider of the type in which the (n+1)th harmonic of the output frequency F 2  is mixed with the input frequency f 1 =nf 2 , a negative resistance oscillator is included to facilitate starting. As shown, the (n+1)th harmonic of f 2  is generated in a multiplier V, selected by a filter F 2  and mixed at M with the input frequency f 1  = nf 2 , giving the difference f 2  which is filtered out at F 1 . The multiplier V (Fig. 2, not shown) contains a four-layer diode or tunnel diode and a parallel circuit tuned to (n + 1) f 2  so as to act as an oscillator when starting, but becomes periodically driven into its positive resistance region under steady-state conditions. The output may be taken at f 2  at a harmonic of f 2  selected by a filter F 3 .
Patent GB-351623-A (GB)
Title: Improvements in display figures
IPC: A63H3/46
Filed: 1930-04-12
Abstract: 351,623. Lay figures. MARSHALL, S. B. and PYTRAM, Ltd., Dunbar Road, New Malden, Surrey. April 12, 1930, No. 11664. [Class 52 (v).] A limb of a lay figure is connected to the trunk, so as to be angularly adjustable, by a pair of plates rotatably connected together and capable of relative lateral movement, co-operating devices being provided on the plates to positively look the plates in adjusted angular position. In the construction shown a circular plate 5, secured to an arm 6, has peripheral teeth 8 and is pivotally and detachably connected to a plate 1, secured to the trunk 2, by passing a central undercut projection 7 in the plate 5 through a slot 3 in the plate 1 and rotating the plate 5. The plates are held in adjusted position by the engagement of a pin 4 in the plate 1 with the teeth 8.
Patent GB-713890-A (GB)
Title: Improvements in or relating to plain bearings
Inventor: LOVE PHIL PRINCE
IPC: F16C33/10
Filed: 1952-05-09
Abstract: 713,890. Bearings. GLACIER METAL CO., Ltd. May 11, 1953 [May 9. 1952], No. 11772/52. Class 12(1) A bearing assembly comprises a hollow cylindrical bearing portion 3, Fig. 3, carried by a rotary shaft 1 and a stationary bearing member 5 extending within the said hollow bearing 3, the outer end of the bearing 3 or its housing 2a being provided with an inwardly extending flange 4 to define an annular channel in which a layer of oil extending the full axial length of the co-operating bearing surfaces is retained by centrifugal action. The bearing member 5 comprises, for example, three symmetrically-disposed segments 6 each locating a passage 8 through which oil is introduced. An auxiliary bearing may be provided, for operation on starting up and at slow speeds, comprising a tapered portion 9 on the shaft 1 co-operating with a tapered bearing liner 10 mounted in a carrier 10a which is axially displaceable within a fixed support or frame 11. The displacement of the auxiliary bearing from its operative position to its inoperative position may be effected automatically by utilizing the increased oil pressure due to centrifugal action on the oil. In the embodiment shown in Fig. 5, the oil pressure acts directly on an annular piston portion 10b of the carrier 10a against the action of springs 12. In a modification, Fig. 6, the oil operates a pressure switch 18 controlling the circuit of a solenoid 19 for the operation of a lever 20 pivoted at 21 and engaging a recess 10c in the carrier 10b. In a further modification. Fig. 7 (not shown), disengagement of the auxiliary bearing is effected by centrifugal weights acting against a spring.
Patent GB-117788-A (GB)
IPC: A47K3/02
Abstract: 117,788. Falkirk Iron Co., and Peacock, J. March 16, 1918. Baths; splashing, preventing.-A bath is provided with a roll edge d having an external flange e which is flat on the outside and extends downwards at right-angles so as to form an abutment which can rest closely against a wall. The edge is made at the top with a marginal antidrip beading which is flattened at the corners of the bath to form ledges. The bath is shaped so as to fit against a right hand, left hand, or end wall.
Patent GB-558879-A (GB)
Title: Method of and apparatus for contacting solids and gases
IPC: C10G11/18
Filed: 1941-09-15
Abstract: 558,879. Contacting solids and gases. INTERNATIONAL CATALYTIC OIL PROCESSES CORPORATION. Sept. 15, 1941, Nos. 11803. 11804 and 11805. Convention dates, Sept. 28, 1940, Oct. 5, 1940, and Dec. 27, 1940. CA Specification was laid open to inspection under Sect. 91 of the Acts, March 27, 1942] [Classes 1 (i) and 32] [Also in Groups XII and XIII] A method of continuously circulating finely divided solids through a treating zone consists in maintaining a vertical column of the solid in a fluidized state by admixing a gas with it throughout the full length of the column, whereby fluid pressure is generated at the base of the column. The solid is discharged from the base of the column into a stream of gas passing to the treatment zone, and is subsequently separated from the gas and returned to the top of the column. The process is applicable in general to the physical or chemical treatment of solids with gases, or of gases with solids. Examples are the low temperature carbonization of coal, the production of water gas, the distillation of wood, shale, or coal, the treatment of ores, drying of solids, oxidation of gases, separation of gases by absorbents, and catalytic processes particularly the cracking and conversion of hydrocarbons. Fig. 1 illustrates an arrangement for regenerating a cracking catalyst. Regenerated catalyst is fed to the column 88 and fluidized by admission of gas at points 94-96. The catalyst is discharged into a stream of oil vapour from vaporizing coil 16 and the mixture is led by conduit 27 to a reaction chamber (not shown). Catalyst is separated from the reaction products and fed to a column similar to 88 where it is similarly fluidized and discharged into a stream of oxidizing gas which carries it by pipe 67 to regenerator 68. The catalyst is separated from the combustion product by cyclones 72, 76, 79 and electric precipitator 84 and passes to a hopper 74, which discharges it either into fluidizing column 88 for return to the cracking process or to a similar column 87, from which it is recirculated through the regenerator and optionally also through heat exchange 13 where it heats the supply of oil to the process.
Patent GB-1035216-A (GB)
Title: Method of and apparatus for fabricating self-lubricating articles or components, and articles or components made by the method
Inventor: REYNOLDS JEFFREY ALAN
IPC: C22C32/00
Filed: 1962-03-28
Abstract: A sintered self lubricating bearing is formed by spreading on a steel backing strip which may be copper plated, a powder mixture comprising metal powder up to 60 m  and 3-5% by volume of a colloidal lubricant of at least one of graphite, M0S2 and BN, sintering in a protective atmosphere below the melting point of the metal, rolling and further heating the sintered strip.  In an example a powder mixture containing by weight 75%-80% Cu, 10%-15% Sn and 8%-12% colloidal graphite of particle size varying from 5-60 m  is sintered and bonded in cracked NH3 at 600 DEG -750 DEG C. to a steel backing strip. According to Fig. 1 (not shown) the mixed powder is applied to a steel strip 1 from hopper 9, levelled by spreader 13 and excess powder falls into a container 14.  The strip is sintered in furnace 4, cooled at 19, cold rolled at 5 to a reduction of 80% and finally resintered at 6.  In a further embodiment the second sintering furnace 6 may be omitted if the sintered strip is hot rolled under a protective atmosphere. Metal powder compositions based on Fe, Cu, Al and Ni may also be used with the following minor additions Zn, Sn, Pb, Cd, Sb, Be, Mn, In, Ni, P, Si, Ag, Te, Cr, Nb, Ti, Mo, Mg.
Patent GB-635537-A (GB)
Title: Improvements in or relating to the manufacture of electrical capacitors
IPC: H01G2/10
Filed: 1948-04-30
Abstract: 635,537. Electric condensers. HUNT, Ltd., A. H., BREWELL, S. H., and RICHMOND, F. S. April 30, 1948, No. 11950. [Classes 37 and 38 (i)] A closure for a can 1 for a condenser, comprises a disc 4 seated on a shoulder 3 in usual manner, the disc being provided with a seating ring 5 of rubber or like material located in a groove around the edge of the disc. The end of the cam is spun over in usual manner, and a rigid ring 13 is forced over the outside of the can mouth to compress the wall into sealing engagement with the sealing ring. The outer ring 13 is provided with lugs 16 for securing the condenser to a radio chassis or the like and the ring 13 is retained in position by bending the inner edge 15 at spaced points into engagement with the recess 2 of the can. The terminal 6 is brought out through the sealing disc in usual fluid-tight manner by means of a washer 9 of cork or other suitable material.
Patent GB-494655-A (GB)
Title: Improvements in and relating to line justifying devices for typewriters
IPC: B41J19/32
Filed: 1938-04-21
Abstract: 494,655. Typewriters. DODDS, N. April 21, 1938, No. 11951. [Class 100 (iv)] Letter-spacing mechanism.-A feed-rack 12 for use in typing justified lines having normal spacing at the beginning and end, is formed with end parts 15 having normally pitched teeth, and a middle part 16 having sets of teeth 17 of different pitches. For use when typing wide sheets, the feed-rack is formed also with a middle part having standardpitch teeth, and separated from the end parts by sets of teeth of different pitches. The feed-rack is pivoted at the ends in the carriage and can be turned by means of knobs to bring the selected set of teeth 17 into engagement with the feed-pinion 11. A spring cooperates with flats on the feed-rack to hold the latter in set position. One of the knobs may be provided with a polygonal rim bearing index-numbers, and may be splined so as to be capable of being moved inwards when the machine is out of use. The teeth 15, 17 are so shaped that they ride freely over the feedpinion during carriage-return.
Patent GB-440082-A (GB)
Title: Fuse for hand grenade
IPC: F42C14/02
Filed: 1935-04-18
Abstract: 440,082. Grenade fuzes. LAGUESSE, F., 144, Rue Hayeneux, Herstal.lez-LiÚge, Belgium. April 18, 1935, Nos. 11963 and 11964. Convention dates, April 18, 1934 and July 19, 1934. [Class 9 (i)] Relates to grenade fuzes having a spring striker 6, Fig. 1, held cocked by an external lever 17 until the grenade is thrown, and consists mainly in the provision of a sliding cover 10, which is held by the external lever in engagement with the conical tail end 7 of the striker and is pressed by the striker to form a seal with a joint 12 on the body 1 of the fuze. The lever, which is unlocked by the removal of a safety pin 16 before the grenade is thrown, has a hook-shaped forked end 18, Fig. 3, in engagement with projections 19 on the fuze body, and carries a roller 21 bearing on a curved surface 20 on the fuze body having its centre on the line of contact a a between the hooks 18 and projections 19, so that the hooks are maintained in engagement until the lever has swung sufficiently for the roller 21 to leave the curved surface 20. When this occurs, the lever falls off, the cover 10 is wedged aside by the striker, and the striker, which has a rounded head, strikes a percussion 3, igniting a delay fuze 4. To ensure the operation of the lever, a ring 22 at the end of the lever 17 is gripped by a finger when the grenade is thrown. In the Specification as open to inspection under Sect. 91, the lever is said to swing out by centrifugal force. This does not appear in the Specification as accepted.
Patent GB-594731-A (GB)
Title: Pillion seat for cycles
IPC: B62J1/16
Filed: 1945-05-12
Abstract: 594,731. Cycle carriers and seats. CAMPBELL, J. C. May 12, 1945, No. 11966. [Class 136 (i)] A pillion seat for cycles comprises a substantially horizontal platform 1 adapted to be secured to the bicycle frame by stays 2, 3, and having adjustably mounted thereon a seat or chair comprising a seat 6 provided with a back and sides 7 which are bolted to the carrier. The back and sides are preferably made of sheet metal, and are secured by bolts 5 to the rear of the carrier and by bolts 9 to the sides by means of strips 8 which have a number of securing holes 10 enabling the seat to be tilted or inclined. The carrier platform is provided with adjustable footrests 15 mounted upon depending brackets 14 secured at each side of the carrier platform. A handle bar 12 may be fitted behind the saddle 13 or it may secured to the chair. All the additions to the carrier are detachable so that the platform can be used for carrying parcels and the like whilst the bolt holes 16 in the depending flange 17 of the carrier may be used for securing a sheet metal hopper for carrying light goods.
Patent GB-1236911-A (GB)
Title: Improvement in safety height indicator systems
IPC: G01S13/935
Filed: 1962-03-28
Abstract: 1,236,911. Pulse radar. CSF-COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. 28 March, 1962 [12 April, 1961], No. 11979/62. Heading H4D. In an aircraft low-altitude navigation system, the craft carries a monopulse, horn antenna radar which effects a vertical and lateral scan of the terrain. The pulse is provided with a representation of the terrain on a block, white and grey double beam P.P.I. indicator by means of which he determines the appropriate control signals. Markings on the C.R.T. screen are also provided, by a second beam, of the artificial horizon. The instructions to alter the craft load factor are indicated by a further set of markings movable relative to the horizon line. A function generator incorporated in the radar receiver, modifies control signals in accordance with a predetermined function in order to generate an imaginary safety surface which is concave upwards ahead of the craft and along which the craft must progress in order to avoid ground obstacles. The shape of the surface may be parabolic or circular and is such to allow for the load factor to which the function generator is sensitive. The safety surface is stabilized in pitch. In the embodiment described, the safety surface may be rotated by the pilot in space, about an axis of the craft and perpendicular to the craft line of flight, so that the surface touches the highest obstacles in the direction of flight at positions indicated by white areas on the C.R.T. Conventional methods are used to derive aircraft height, drift, acceleration, pitch and angle of attack and the antenna is automatically positioned with respect to the safety surface so as to cover the required scanning zone. Pitch stabilization is effected by a pitch angular velocity feedback to the attack angle amplifier and radar signals from obstacles not within a selected lane are rejected by a gate energized by the scanning signal generator. To eliminate the effect of noise, signals below a preset threshold value cause the safety surface to be set a predetermined inclination to the horizontal. The discrimination is effected in a storage device which averages the maximum received signals during several azimuth scans.
Patent GB-547998-A (GB)
Title: Magnetic focussing arrangements for cathode ray tubes
IPC: H01J29/66
Filed: 1941-09-19
Abstract: 547,998. Image dissectors. STANDARD TELEPHONES & CABLES, Ltd. Sept. 19, 1941, No. 12062. Convention date, Sept. 28, 1940. [Classes 39 (i) and 40 (iii)] To reduce "spiral" distortion in image dissector tubes wherein the electron image at the scanning plane is of greater area than that produced at the photo-cathode, the electro-magnetic focusing field is varied along the tube so that the magnetic lines of force follow the " expanding" electrostatic field. The electro-magnet extends beyond the ends of the tube 10 and in one form comprises two superposed windings each divided into corresponding sections 41, 43 ... 71, 73 and 40, 42 ... 70, 72 ; the number of turns in the sections are graded so that the numbers increase in the odd numbers section 41 having least, while the grading is reversed in the even numbered, 40 having most number of turns. As a consequence by selecting the current to be sent through the sections the tapering of the field can be controlled. The current is supplied from a rectifier 80 through three variable resistances 87, 88, 89, that from 87 passes to coils 44 to 72, from 88 through coils 45 to 73 and from 89 only to coils 40, 42 to give end correction ; similar end correction may be made at the other end of the tube. The tapering field may also be obtained by using (i) a single coil with number of turns varying uniformly along the tube; (ii) coils spaced much closer at one end than at the other ; (iii) coils uniformly spaced but carrying differing currents each coil being shunted by a resistance. The image produced at the photo-cathode 21 is deflected by coils arranged inside the focusing coils over an orifice 27 in an electron multiplier 22 ; only a portion of the surface of the cathode 21 is used for emission.
Patent GB-672917-A (GB)
Title: Improvements in turbine propulsion units and aircraft fitted with same
Inventor: CROCOMBE FREDERICK FRANCIS
IPC: F02C7/042
Filed: 1949-05-05
Abstract: 672,917. Air intakes for aircraft. BLACKBURN & GENERAL AIRCRAFT, Ltd. May 25, 1950 [May 5, 1949], No. 12067/49. Class 4. [Also in Group XXVI] An air intake for the turbine propulsion unit of an aircraft comprises a duct of adequate crosssectional area to supply the propulsion unit's maximum requirements, provided with one or more hinged members at the inlet thereto which is or are capable of being swung outwardly from the normal position to increase the inlet area of such duct, which is suitable for high speed flight. The arrangement ensures an adequate supply of air to the propulsion unit during low speed flight or when running on the ground. In the embodiment shown the forward portions 5, 6 of inlet ducts disposed on opposite sides of the fuselage are movable about hinges at their rearward ends by means of jacks 9, 10. The portions 5, 6 are so shaped that their leading edges define cross sectional areas suitable for high speed flight in the normal position shown in full lines. Specifications 651,436 and 672,914 are referred to.
Patent GB-946430-A (GB)
Title: Improvements in or relating to apparatus for injection moulding
Inventor: POYNER WILLIAM FRANCIS
IPC: B29C45/67
Filed: 1961-04-05
Abstract: 946,430. Injection moulding machines. FOSTER, YATES & THOM Ltd. March 14, 1962 [April 5, 1961], No. 12125/61. Heading B5A. An injection moulding machine comprises an injection cylinder 6 with a nozzle 5, mould parts enclosed in a carrier of hinged parts 1, 2 and 7, and a piston 14 arranged to exert a closing pressure on the mould parts during injection to prevent flash occurring. The piston 14 is in a cylinder 15 which is supplied with hydraulic fluid under the control of an auxiliary piston 16 connected to a rod 18. The piston 16 is actuated by a spring loaded plunger 20 which is attached to the injection cylinder 6 and adapted to engage the rod 18 just before the nozzle 5 contacts the mould carriers. There may be a plurality of mould carriers mounted on a rotating table and in this case the rod 18 will have an extension which serves to locate the mould carrier accurately opposite the injection unit. Specification 797,463 is referred to.