baber/WOPTO huggingface dataset:
Patent GB-619665-A (GB)
Title: Improvements in or relating to machine guns, automatic cannon or the like
IPC: F41A1/04
Filed: 1940-02-12
Abstract: 619,665. Machine guns. GABLER, J., and GRAYBLER CORPORATION (ENGLAND), Ltd. Feb. 12, 1940, No. 2681. [Class 92 (ii)] Relates to machine guns and automatic cannon in which firing is effected by an explosive gaseous mixture supplied to the firing chamber under pressure and separately from the projectile. According to the invention, the inflow of the gaseous mixture to the firing chamber actuates a piston member which controls the projectile feed, the cut-off in the supply of the gaseous mixture to the chamber and the timing of the firing. In the form shown, hydrogen and oxygen at a pressure which may be varied between 10 and 50 atmospheres and in the proportions of 2: 1 by volume are introduced to a mixing chamber 2, Fig. 4, and, with a slide valve 10 open as shown, the pressure of the mixture acts on a piston 4 to feed a projectile 67 from a belt 66 into the gun barrel 13. The piston 4 thus moves clear of a rod 12 and the mixture occupies its hollow interior. The piston 4 has a rack engaging a pinion 26a, Fig. 12, on a spindle 26 which also carries a pinion 26b engaging a transverse rack 25. This rack controls the belt feed and times the closure of an electric firing circuit through the sparking- plug 32. The spindle 26 also carries a pinion 26c, Fig. 11, engaging a rack on a slide 6 to compress the return spring 18. The slide 6 also stresses a combined torsion and compression spring 9 tending to close the slide valve 10, the closure being effected sharply when a cam surface 70 on the slide 6 has turned a projection 8 on the valve stem 74 out of an L-shaped groove 75. The firing of the mixture causes a diminution of pressure acting on the piston 4 which is then returned to the position shown by the spring 18 acting through the sleeve 6 and the spindle 26. Meanwhile, the slide valve 10 is moved forwards and rotated by the torsion of the spring 9 to the open position for the admission of a fresh gaseous charge. The outward movement of the rack 25, Figs. 11, 12, as the piston 4 closes the breech, causes a cam member 76 to engage a roller 43, Fig. 13, on an arm 42 carrying a pawl 44 which rotates the drum 41 to feed the belt forward one step and bring a fresh projectile above the breech. As the piston 4 moves to close the breech, the charge is fired when the circuit through the sparking-plug 32 is completed by the engagement of a roller 54 on the rack 25 with an arm 60 on the electric contact member 58. As the piston 4 moves to open the breech, the cam member 76 on the rack 25 engages a pivoted member 22b which inserts a projectile from the belt into the loading opening and the arm 60 is also actuated by the roller 54 to open the firing circuit. Cooling air is directed by a member 16a, Fig. 7, over a radiator 14. arranged between the barrel 13 and an apertured casing 15.
Patent GB-1031021-A (GB)
Title: Improvements in or relating to apparatus for providing a signal in digital form representing a trignometric function of the angular position of a rotatable member
Inventor: COLLIE ARTHUR ALEXANDER
IPC: H03M1/00
Filed: 1964-01-22
Abstract: 1,031,021. Analogue - digital converters. SMITHS INDUSTRIES Ltd. Nov. 13, 1964 [Jan. 22, 1964], No. 2705/64. Heading G4H. The number of parallel lines 3 covering the portion 1 of a disc which pass beneath sensing assemblies 10, 11 are counted in reversible binary counters 19, 20 respectively, the counts representing the sine and cosine of the angle through which the disc has been turned from a datum position. Sensing assemblies 12, 13 co-operating with marking 4, 5 and 6, 7 on circumferential bands of the disc send appropriate signals to a logic circuit 21 which controls the direction of count in the counters 19, 20 and provides positive or negative signals in leads 22, 23 for determining the sign of the count. The sensing means may be either photo-electric cells co-operating with lines and marks on the disc or alternatively the lines and marks may be replaced by magnetized strips which are sensed by Hall-effect devices.
Patent GB-141328-A (GB)
Title: Improvements in or connected with magneto-electric ignition apparatus for internal combustion engines
IPC: F02P5/06
Filed: 1920-01-28
Abstract: 141,328. American Bosch Magneto Corporation, (Assignees of Lang, G. J.). April 8, 1919, [Convention date]. Magnetos, driving. -Mechanism is provided for changing the period of actuation of the trip-lever 5 of an oscillating magneto 6 for a lowspeed engine from full retard (at starting) to full advance (at running) in a single step. The lever 5 is tripped during normal running of the engine by a pin 4 on the half-time gear-wheel 3. At starting, the pin is surrounded by the curved arm 9 of a member loosely pivoted on the stud 8 and having a weighted portion 10. After the first few power strokes of the engine, the centrifugal action of the portion 10 moves the arm 9 away from the pin into the inoperative position shown in dotted lines. The arm 9 may be held in its starting and inoperative positions by means of spring clips or latches 12, 13. The trip-lever 5 may be curved and the parts 4, 9 rounded so as to produce a rolling and sliding action and reduce shock.
Patent GB-739362-A (GB)
Title: Improvements in and relating to television camera tubes
IPC: H01J29/00
Filed: 1954-01-29
Abstract: 739,362. Cathode-ray tubes. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Jan. 29, 1954 [Feb. 2, 1953], No. 2766/54. Class 39 (1). [Also in Group XL (b)] A movable mark is positioned between an object to'be televised and the photo-cathode of an image type tube and is adapted to move upon variation of the magnification of the electronoptical system so that an edge of the storage electrode is always screened from photoelectrons for all magnification settings. The screened edge so produced is employed to generate a " black " level signal when impinged by the scanning beam of the tube. In one embodiment (Fig. 1), the mask 28 is mechanically coupled, via elements 30-34, to a shaft 24 which also controls the electron-optical magnification of the tube 1 by adjustment of potentiometers 21-23 which control the current in the focusing coils 18-20, the arrangement being such that the portion of the photo-cathode screened from incident light increases with increase of magnification. In an alternative arrangement (Fig. 2), the current in one of the focusing coils 23 is employed to energize an electromagnet 35 to displace the mask against the force of a spring 37. In a further embodiment (Fig. 3), the mask provided a rectangular aperture formed by two portions 38, 39 which are moved along one of the diagonals of the aperture by means of elements 40-42 controlled by electromagnet 35 and spring 37.
Patent GB-877647-A (GB)
Title: Improvements relating to a hand-propelled vehicle having a chassis and a detachable body
IPC: B62B7/14
Filed: 1959-01-26
Abstract: 877,647. Folding prams and barrows. LINES BROS. Ltd. (Lines Bros. (Canada) Ltd.) Dec. 4, 1959 [Jan. 26, 1959], No. 2767/59. Class 108(1). A perambulator or barrow has a removable and reversible body provided with cheese headed pegs at either side which may be fitted into slots 13 in plates 12 on side chassis members 7 Figs. 9 and 11, and the body is held in position on the chassis by pivoting a handle linkage 16, 18, 20 to an extended wheeling position so that slots 26 in plates 24 fixed to links 18 co-operate with the shanks 4 of the pegs to prevent the pegs from rising out of the slots 13. In Fig. 7 the plates 24<SP>1</SP> are extended into hooks 28 which hook over the pegs when the handle is also in the folded position.
Patent GB-886010-A (GB)
Title: Improvements in and relating to nut devices
IPC: F16B37/12
Filed: 1960-01-26
Abstract: 886,010. Nuts. UNITED-CARR FASTENER CORPORATION. Jan. 26, 1960 [Jan. 26, 1959], No. 2825/60. Class 89(1). A nut for securing in a blind hole, 12, comprises an internally-screwed boss 16, having a flange 18, bent upwardly and slotted at 24 to form prongs 25 which, when a tool 32 is forced between the prongs and fhe boss, dig into the wall 36 of the hole 12. The nut may have more, or less prongs depending on the holding force required.
Patent GB-869652-A (GB)
Title: Ignition device for combustion chambers of engines and propulsion units
Inventor: LAMOUCHE RAYMOND PIERRE ALFRED
IPC: F02C7/264
Filed: 1959-01-27
Abstract: 869,652. Igniting burners. SOC. NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. Jan. 27, 1959 [Feb. 3, 1958], No. 2953/59. Addition to 791,990. Classes 75(1) and 75(3). An ignition device for the combustion chamber of an engine comprises a carburetting chamber 8 supplied by tangential pipes 4 with heated air or oxygen and by a porous metal sleeve 11 with kerosene, the carburetted mixture being discharged through a nozzle 10 into a chamber 22 to induce therein through tangential pipes 23 a supply of oxygen. The mixture is then discharged into the combustion chamber of the engine. The mixture is ignited either by a U-shaped refractory rod heated electrically and adjustably disposed outside the carburetting chamber 8 or by a small straight rod heated electrically and situated within the carburetting chamber 8. The air or oxygen delivered to the carburetting chamber 8 by the pipes 4 is heated by electric resistances 7 either disposed inside or surrounding refractory tubes 6.
Patent GB-705124-A (GB)
Title: Improvements in pipe couplings
IPC: G01G5/04
Filed: 1952-02-05
Abstract: 705,124. Pipe couplings. ALLTOOLS, Ltd., HAILER, A. H., and SAUNDERS, F. S. Oct. 24, 1952 [Feb. 5, 1952], No. 3031/52. Class 99 (1). [Also in Group XXIX] In a coupling for transmitting hydrostatic pressures in a conduit 14, e.g. connecting 'a weighing unit and a pressure gauge, and comprising spigot ends 16, 17 provided with flexible diaphragms 19, 26 and connected together by a nut 29 having an aperture 33 permitting the escape of air from between the diaphragms during the coupling of the spigot ends, the spigot ends have narrow bores 18, 24 and shallow wider recesses 20, 25, and the skirt portions of the diaphragms 19, 26 have beads 23, 27 which engage in circumferential retaining grooves in the spigot ends. Excessive clamping pressure on the abutting faces of the diaphragms is prevented, e.g. by. encircling the skirt portions of the diaphragms with abutting metal distance pieces 31, 32. There may be air vents 34 in the spigot ends leading from the recesses 20, 25 to outlets 35 containing ball valves 36 held against seatings 38 by screws 37. Specifications 564,287, [Group XXIX], and 617,429, [Group XVIII], are referred to.
Patent GB-959119-A (GB)
Title: Process for obtaining methacrylic acid and ammonium bisulphate
IPC: C01C1/24
Filed: 1962-01-26
Abstract: Ammonium bisulphate is produced and separated from methacrylic acid, when "methacrylamide-sulphate," 1 mol., is hydrolysed at above 125 DEG  C. with water or steam, 1 to 1.3 mols. (see Division C2).  It is preferable to effect the separation of the two phases at above 120 DEG  C.  Specification 650,343 is referred to.ALSO:Methacrylic acid is produced by hydrolysis of "methacrylamide-sulphate" i.e. a heat treated mixture of equimolar to 1 mole excess sulphuric acid and acetone cyanhydrin with water or steam at above 125 DEG C. using mole ratios range of methacrylamide sulphate to water of 1:1 to 1:1.3 and thereafter separating the phases of substantially anhydrous molten ammonium bisulphate (see Division C1) and methacrylic acid. The hydrolysis may be effected at superatmospheric pressure within the preferred range of 125-185 DEG C.  The examples describe batch and continuous operation.  Specification 650,343 is referred to.
Patent GB-453814-A (GB)
Title: Improvements in or relating to heated pressing elements, more particularly for the treatment of textile goods
IPC: D06C15/10
Filed: 1936-02-03
Abstract: 453,814. Rollers &c. for treating fabrics &c. SCHUSTER, F., 39, Furtherstrasse, Chemnitz, Germany. Feb. 3, 1936, No. 3197. [Classes 42 (i), 42 (ii), and 138 (ii)] Rollers, plates, &c. for pressing fabrics &c. are provided with facings of rubber 4 and arranged to be heated internally.
Patent GB-1532552-A (GB)
Title: Process for producing sheets or boards
IPC: B32B15/08
Filed: 1976-01-28
Abstract: 1532552 Laminates MITSUBISHI GAS CHEMICAL CO Inc 28 Jan 1976 [30 Jan 1975 17 Feb 1975] 3292/76 Heading B5N A laminating process comprises uniformly applying to each one of a plurality of layers of fibrous reinforcing material at least one surface of a powdery thermosetting resin composition, the resin having a melting point of from 40 to 170‹ C. and a gelation time at 170‹ C. of not more than 60 minutes, which, when heated, temporarily becomes flowable and then cures; and simultaneously or successively melt-adhering the resin composition to the material to form a semi-cured resin melt-adhered base material, and consolidating a plurality thereof under heat and pressure. In a modification of the process a resin melt-adhered base material made by impregnating a reinforcing material with a thermosetting resin solution, drying and semi-curing the resin is superimposed on at least one of the layers. A metal foil may be applied as an outer layer. Specified reinforcing materials are paper and a woven or non-woven fabric of glass, natural or synthetic fibres. The resin may be an epoxy, polyester, phenolic, melamine, polyimide, silicone, cyanate, diallyl phthalate or isocyanate resin or a mixture thereof.
Patent GB-1026933-A (GB)
Title: Improvements in the production of benzene carboxylic acids
IPC: C07C51/275
Filed: 1964-01-27
Abstract: In a process for the production of benzene carboxylic acids, a chloromethyl alkyl benzene is etherified with methanol and an alkali or alkaline earth hydroxide, preferably under pressure at 80-150 DEG C., and the resulting methoxy methyl alkyl benzene is oxidized with nitric acid to the corresponding carboxylic acid preferably at 140-220 DEG  C.  The methanol is used in an amount of at least 5 times the stoichiometric amount required for the reaction with the chloromethyl group and preferably at the rate of 8-15 times that amount.  In an example a suspension of calcium oxide in methanol was heated to 120 degrees in an autoclave and a mixture of ortho- and para-chloromethyl toluene added and the reaction allowed to proceed for a period of time, the solution was cooled and the calcium chloride filtered off, and the reaction solution distilled to produce a mixture of p- and o-methoxy methyl toluene. The latter was reacted with nitric acid in a reaction tube at 170 degrees under pressure and subsequently terephthalic acid and o-phthalic acid were separated. Other examples showing the preparation of pyromellitic, mellophanic, benzene pentacarboxylic and mellitic acids are described.
Patent GB-697316-A (GB)
Title: Improvements in or relating to rotary molding machines
IPC: B30B11/08
Filed: 1950-02-10
Abstract: 697,316. Rotary - mould - table compressionmoulding machines. ARMSTRONG CORK CO. Feb. 10, 1950 [Feb. 28, 1949], No. 3460/50. Class 87 (ii). Dies 8, 9 mounted on plungers 6, 7 are slidably mounted in a continuously rotatable carrier 3 supported on bearings 4. The plungers 6 are raised and lowered by fixed cams 19, 20. The plungers 7 are cushioned by fluid-actuated bellows 24 in a sealed chamber 25. A diaphragm 27 of the bellows is connected to the plunger 7 by a rod 26. The chambers 25 are connected by pipes 35, 33 to a reservoir 31. The fluid pressure system may be pneumatic or hydraulic, and if hydraulic, a pneumatic bulb 37 acts as a cushion. In operation, after curing a moulded article, the cams 19 raise the upper dies and the moulded article is removed. The bend between the article and the die 8 is first broken by an abutment 48, Fig. 2, which engages a pin 47 on the plunger 7, to turn it slightly. A small vibrator 49, Fig. 6, may also be provided to loosen the articles. The article may be unscrewed from the die by a moving belt 56. A knock-out device may be provided, acting through plunger 6. If an article has not been removed, it engages a button 61, Fig. 6, which causes a pin 63 to rise and prevent material from being fed to that die cavity. Material is fed to the dies by a shoe comprising two parts 74, 75. The part 75 is mounted on an arm 76 and is slidable with respect to the part 74 which is mounted on an arm 71. The arms 71, 76 are pivoted about 72 by a cam 67 in one direction and by a spring 73 in the other. As the feeding shoe is moving over the die cavity, under the action of the spring, the arm 76 is stopped by a bolt 80 engaging a stop 81, to open the bottom of the shoe and allow the material to fall into the cavity. This feeding apparatus comprises the subject-matter of Specification 697,378. The material may be powder or a preformed pill and it may be preheated. As the carrier rotates, the plunger 6 drops and then the cam 20 forces the plunger down, moving the die 9 down and expanding the bellows 24 to apply moulding pressure to the material. The cams 19 may have a raised part (see Fig. 3, not shown) to lift the die 8 momentarily to allow the relief of gases. The dies are heated by conduction from the plungers which are heated by elements 38, 39. The elements are controlled separately by thermo-couples 43. The current is supplied through slip rings 42. A pressure gauge 32 is provided. Specification 524,743 also is referred to.
Patent GB-1448955-A (GB)
Title: Pressure reducing valve
IPC: F16K1/14
Filed: 1974-01-25
Abstract: 1448955 Valves H N MAYS 25 Jan 1974 3556/74 Heading F2V A pressure reducing valve for high-pressure gas containers, e.g. oxygen cylinders, includes a member 4, Fig. 2, having an inlet passage 5, 6, 18 containing a pair of valve throttling elements 8, 16 simultaneously engageable with respective seats 7, 17 and spaced apart by a cylinder 15 formed to define a throttling passage with the wall of the inlet passage. A body portion 21 of the valve, provided with bores 30, 31 and a discharge passage 50, 60, Figs. 2 and 3, includes a spring-biased piston and plunger assembly 32, 46. When the valve is attached to a gas cylinder via the member 4, the elements 8, 16 are opened via plunger 46, piston 32 and spring 41 by screwing down control screw 43. Normally, needle valve 52 in discharge passage 50 is closed so that the inflowing gas passing into bore 31 via a further throttling passage defined between plunger 46 and the wall of bore 30, builds-up pressure to eventually counteract the force exerted by the spring 41 and thereby permit the elements 8, 16 to close. However, on opening the needle valve 52 for delivering low pressure gas to a point of use, the subsequent drop in pressure in bore 31 results in the elements reopening and assuming an equilibrium position with the piston. The elements 8, 16 may be of steel and the seats 7 17, of brass or aluminium.
Patent GB-237510-A (GB)
Title: Improvements in and relating to cushion connections for the springs of vehicles
IPC: B60G11/40
Filed: 1925-02-09
Abstract: 237,510. Imray, O. Y., (International Motor Co.). Feb. 9, 1925. Buffers; non-metallic springs. - Cushion connections are interposed between the ends of transverse springs a and the axle casing, these connections comprising compressed blocks of indiarubber arranged in a housing composed of a base e<1> and a stamped metal body f. The base fits on the axle casing and is secured by the bolt d<2> and U-bolts h. The bodv f is secured to the base e<1> by bolts g. Metal seats b are interposed between the ends of the spring and the rubber blocks.
Patent GB-644631-A (GB)
Title: Improvements in or relating to rotors for centrifugal stills
IPC: B01D3/08
Filed: 1948-02-07
Abstract: <PICT:0644631/III/1> A rotor for a centrifugal still, and particularly for a high-vacuum unobstructed-path still wherein the distilland is in the form of a film, is of massive construction, has a thickness at the vaporizing area between 3/16 inch and 1 1/2 inches, and is made of material which has a coefficient of thermal conductivity in excess of 90 B.T.U.-foot-hour-degree Fahrenheit units.  The temperature of the vaporizing surface using such a rotor heated by an electric element beneath it is maintained nearly uniform at all points, and decomposition of a heat-sensitive distilland is less than when a thin rotor is used. For a rotor of 30 inch diameter, the thickness is in the range 1/4 -\ba1/2 inch.  The rotor may be made of <PICT:0644631/III/2> aluminium, copper, gold, silver, or magnesium, or various plated combinations of such metals, or an alloy of sufficiently high thermal conductivity.  A rotor constructed of copper with a silver coating has excellent performance characteristics.  Figs. 2 and 3 show rotors which are suitable for small and large stills respectively.  In either case the rotor is rotated by a shaft (not shown) attached at hole 12.  The heating element underneath the rotor is placed in operation.  The distilland is introduced at area 10, and centrifugal force drives it over the vaporizing area 11 into collecting gutters.  In an example, comparison is made between the performance of a 3/4 inch aluminium rotor and a 3/16 inch steel rotor in the concentration of vitamin A from fish oil.  The loss of vitamin A using the thick aluminium rotor was about one-half the loss sustained when the thin steel rotor was used.
Patent GB-851080-A (GB)
Title: A new or improved driving arrangement for land vehicles or water borne vessels
IPC: F16D41/00
Filed: 1957-02-01
Abstract: 851,080. Ratchet clutches. ZAHNRADFABRIK FRIEDRICHSHAFEN A.G. Feb. 1, 1957 [Feb. 8, 1956], No. 3675/57. Class 80 (2). [Also in Groups XXVII, XXXI and XXXIII] Main and auxiliary diesel engines alternatively operable to drive a ship or vehicle at different speeds have their drive shafts 21, 25 connected to the input shaft 23 of a main transmission reversing gear via one-way clutches 22, 24. An electromagnetically operated friction clutch 31, between the shafts 21, 25 may be provided for starting of the main engine by the auxiliary engine, a time switch being provided to disengage the clutch after starting.
Patent GB-383270-A (GB)
Title: Improvements in or relating to the production of low-boiling hydrocarbons from heavier hydrocarbons
IPC: C10G45/00
Filed: 1931-02-06
Abstract: <PICT:0383270/III/1> Low-boiling hydrocarbons are produced by the destructive hydrogenation of a heavy oil derived from petroleum and preferably having an aniline miscibility point below 140 DEG  F. Heavy oil is cracked in a coil 3 and drum 8, and the products are withdrawn by a pipe 9 and discharged into a fractionating tower 10. A fraction of the desired aniline miscibility point is withdrawn by a pan 13 and passed through a heating coil 26 into a reaction vessel 30 packed with sulphur resistant catalyst.  Hydrogen is added either from the pipe 29 or from spraying devices 34.  The products are condensed by a heat-exchanger 36 and cooling coil 37.  The condensate from the exchanger 36 may be passed back to the coil 26, or, after being freed from gas in the vessel 42, may be returned to the coil 3. Other forms of cracking plant may be used in the process.  The product of the hydrogenation step is a naphtha with anti-detonating properties, particularly in the higher boiling fractions.  Examples of the production of motor fuels are given.
Patent GB-803379-A (GB)
Title: Alloys
IPC: B23K35/30
Filed: 1954-02-10
Abstract: Gold alloys for jewellery consist of Au 37.5-75.0 per cent, In 1.0-10.0 per cent, Ag the balance.  The alloys may contain one or more of Pd, Cu, Ni, Co and Al in which case the content of Ag is 4.5-14 per cent.  Cd or Zn may also be present up to 0.5 per cent. The alloys may be cast or used as solder.
Patent GB-166610-A (GB)
Title: Improvements in or relating to electric aural apparatus more especially for use by deaf persons
IPC: H04R11/00
Filed: 1920-10-25
Abstract: 166,610. Brown, S. G. Oct. 25, 1920. Receivers for deaf persons.-Sound is communicated to the skull or teeth by a stud E on a stiff reed C vibrated by a magnetic system consisting of a. permanent horseshoe magnet B with coil F wound on a bridge pole-piece b, which is cut away to form a hole just below the reed. The stud E may be mounted at an intermediate point of the reed C so as to project through the cover a.