baber/WOPTO huggingface dataset:
Patent GB-826861-A (GB)
Title: Rocket motors
Inventor: SHIRLEY WALTER
IPC: F02K9/68
Filed: 1956-05-14
Abstract: 826,861. Rocket motors. NAPIER & SON Ltd., D. May 1, 1957 [May 14, 1956], No. 15016/56. Class 110 (3). [Also in Groups XI and XII] In a rocket motor of the kind using a fuel and an oxidant, the fuel being in liquid form and the oxidant being in gaseous form when introduced to the fuel and oxidant distributer, the gaseous oxidant is supplied into the combustion chamber through an annular duct and the liquid fuel is introduced into the duct through an orifice in the inner wall of the annular duct with a substantial component of velocity transverse to the flow of gaseous oxidant so that the liquid fuel impinges on a surface constituted by the outer wall of the annular duct whereby the fuel is atomized and distributed through the gaseous oxidant. The rocket motor shown comprises an outer casing 1 and an inner casing 2 which affords a combustion space 5 leading to a Venturi-shaped propulsion nozzle 6, a catalyst chamber 3 being disposed within the upstream end of the casing. Hydrogen peroxide is supplied to the space 7 between the outer casing 1 and inner casing 2 where it provides a cooling effect on the combustion chamber and propulsion nozzle and then enters the decomposition chamber 3 issuing therefrom in the form of a mixture of steam and oxygen at high temperature and pressure. The mixture then flows through passages 14 in the fuel and oxidant distributer 4 to the annular duct 11 and then discharges through the annular duct formed between the frusto-conical surfaces 12, 13 into the combustion zone. Liquid fuel such as paraffin is supplied through a duct 8 to the chamber 19 and then flows through passages 18 in web members 30 to a manifold 20, the fuel then flowing radially inwardly through a narrow annular space 21 and through openings 23 into a central chamber 24. The fuel then flows through a non-return valve 25 to a space 26 and thence through a narrow annular space 28 and finally through a series of discharge orifices 29 into the flow of steam and oxygen issuing through the annular duct 12, 13. The liquid fuel flowing through the narrow passages 21, 28 provides a cooling effect on the walls 9, 31 of the fuel and oxidant distributer, these walls actually forming the end wall of the combustion chamber. Some steam and oxygen issuing from the decomposition chamber enters the combustion space through the passage 15, being caused to flow radially inwardly by the flanged lip 17. Reference has been directed by the Comptroller to Specification 727,720, [Groups XII and XXXI].
Patent GB-1465606-A (GB)
Title: Baking process and oven
IPC: A23L11/00
Filed: 1974-04-04
Abstract: 1465606 Cooking in hot water WILLIAM UNDERWOOD CO 4 April 1974 15031/74 Heading A4D [Also in Division A2] Fragile particulate food comprising an amino acid constituent is baked by dispersing the particles in a tray in the form of an open-topped container in a menstruum comprising a concentrated aqueous solution of reducing sugar, rapidly heating the dispersion to boiling point, maintaining the temperature surrounding the tray above boiling point to cause substantial circulation of the particles within the tray while periodically adding measured quantities of water to the tray, the concentration of sugar in the menstruum being maintained during baking at an elevated level by adding water in such amounts that the fraction of water by weight in the initial dispersion is less than the fraction of water in the baked product. The food particles may comprise a shelled uncrushed pulse variety such as beans. As shown, Fig. 1, apparatus for carrying out the process comprises an elongated oven 12 containing heating elements 106, an endless conveyer 14 having sectors inside and outside the oven, a plurality of trays 16 in the form of open-topped containers attached to the conveyer, means for moving the conveyer through the oven, tray loading means 50 adjacent one end 18 of the oven and at intervals along that sector of the conveyer inside the oven watering means 120, 122 and 124 each fitted with a valve and spray nozzles for discharging measured quantities of water into the trays. The conveyer may be in the form of a continuous roller chain having rollers 15 attached to its links, and may be continuously driven by a motor 22. The trays are formed with the front and back walls inwardly tapered towards the bottom which is somewhat rounded to facilitate washing, the upper loading edge of each tray being formed as a pouring lip which extends partially over the preceding tray. The oven may be heated by a plurality of ribbon burners 106, preferably gasfired. Beneath the oven is a tray washing and rinsing station 32 and a pre-rinse station 34. Trays emerging from the oven are emptied over a baffle 126 into a screw conveyer 21 from which the beans may be transported to a conventional canning station.
Patent GB-286522-A (GB)
Title: Improved device for cleaning dust-bins
IPC: B08B9/08
Filed: 1927-06-07
Abstract: 286,522. Potts, H. E., (Schmidt & Melmer). June 7, 1927. Dust-bins, washing.-A support 34 for a dustbin is movable on guides in a vessel 14 so that the bin may be brought into a position where it is washed by water under pressure. The interior of the bin is washed by liquid issuing from jets 11, 12 in a pipe 10. Four spray pipes are .located about the exterior of the bin. The hinged lid 2, which is opened by lever and link mechanism, is located, when being washed, in a recess 15 in the ve'ssel 14 and cleaned by means of spray pipes 17, 18.
Patent GB-668827-A (GB)
Title: Improvements in or relating to electron discharge apparatus
IPC: H01J25/38
Filed: 1948-06-04
Abstract: 668,827. Travelling-wave tubes. STANDARD TELEPHONES & CABLES, Ltd. June 4, 1948, [June 5, 1947], No. 15149/48. Clas 39 (i). A travelling-wave tube comprises an input helix 8 for velocity modulating the electron beam, a drift tube 14 biased negatively with respect to helix 8 in which the velocity modulated beam becomes bunched, the negative bias serving to enhance the bunching, and an output helix 16. The input is fed to helix 8 via wave-guide 9 and antenna 10 and the output is taken from helix 16 via antenna 20 and wave-guide 19. Wave-guides 11, 17 coupled to the helices by antennµ 12, 18 provide matched terminations so as to prevent harmful reflections. The electron gun comprises indirectly heated cathode 2, concentrating electrode 3, and accelerating electrode 5; helices 8, 16 are maintained at high positive potentials by batteries 13, 21, drift tube 14 and collector 22 at smaller positive potentials. The helices are held inside the envelope by insulating supports (not shown). Magnetic coils or permanent magnets (not shown) focus the beam. The device is used as an amplifier or, if the two helices are suitably coupled, as an oscillator. The helix 16 may progressively diminish in pitch or increase in diameter from 18 to 20 to compensate for the decrease in velocity of the beam as it gives up energy to the helix. The Specification as open to inspection under Sect. 91 states that the guides 11, 17 have matched terminations at their open ends. This subject-matter does not appear in the Specification as accepted.
Patent GB-181345-A (GB)
Title: Improvements in and relating to valve gear for steam engines
IPC: F01L31/16
Filed: 1922-05-30
Abstract: 181,345. Sch÷nfeldit, H. June 7, 1921, [Convention date]. Addition to 179,542. Beat or lift valves.-In lieu of the coaxial doublebeat valves described in the parent Specification, the inlet valve 6 mav be formed as a single-seat valve as shown on the left, or both the inlet and exhaust valves 6, 7 may have single seats as shown on the right of the Figure.
Patent GB-1046002-A (GB)
Title: Improvements in agricultural seed drilling machines
IPC: A01C7/08
Filed: 1964-04-13
Abstract: 1,046,002. Seed sowing machines. AMAZONEN-WERKE H. DREYER. April 13, 1964 [April 13, 1963; Dec. 21, 1963], No. 15268/64. Heading A1D. An. agricultural drilling machine adapted to be mounted on the linkages 2, 3 of a tractor comprises rotary agitating and feeding members 11, 14 driven via chain mechanisms from a sprocket 26 mounted on axle 20 on which is mounted a pair of ground wheels 5. The axle is mounted in arms 4 which are pivoted at 9 to the machine frame 1, thereby to allow movement of the wheels relative to the frame. Nuts 23 on rods 21 which are attached to the arms 4 limit downward movement of the wheels whilst upward movement is limited by spindles 25 against which the arms abut. The drilling machine also comprises shares 8 mounted on share-holders 6, 7 which are pivotally connected at their forward ends to the machine frame. The wheels may be drivingly connected to the axle by manually operable clutches (Fig. 3, not shown) or alternatively by free wheel clutches (Fig. 4). The latter clutches each comprise a clutch plate 53, rigidly connected by keys 46 with the axle, with recesses 56 in which steel rollers 57 are positioned. Upon rotation of the wheel 5 in the direction indicated the inner surface of the hub 40<SP>1</SP> causes the rollers to join between itself and the surface 63 of the plate, and thereby imparts drive to the axle. When the machine is operating on a curved path the clutch adjacent the more slowly rotating wheel will slip, since the rollers will be forced against the spring urged bolts 62.
Patent GB-1437781-A (GB)
Title: Pyridine derivatives having hypoglycaemic activity
IPC: C07D521/00
Filed: 1972-04-04
Abstract: 1437781 Pyridine derivatives BEECHAM GROUP Ltd 18 May 1973 [4 April 1972] 15280/72 Heading C2C [Also in Division A5] Compounds (mostly novel) of Formulµ I and II in which formulµ "Py" represents a substituted or unsubstituted 2-, 3- or 4-pyridyl group, or an N-oxidized or quaternized pyridyl group; "A" represents a group of Formula (IIIa), (IIIb) or (IIIc) wherein "ALK" represents a straight or branched chain alkylene group having from 1 to 6 carbon atoms; R 1  represents a carboxylic acid group or a group which is converted in the human body to a carboxylic acid group R 2 , R 3  and R 4  each separately represent hydrogen, a carboxylic acid group, a group which is converted in the human body to a carboxylic acid group, a hydroxy group, an alkoxy group, an aralkoxy group, an aryloxy group, an esterified hydroxy group, a nitro group, a halogen group or an amine group, are prepared by reacting a compound of formula B-(ALK) n OH with a compound of formula HO-(ALK) m -Py in which m and n are 0 or 1, provided n + m#0, and B is a group of Formula Ia or IIa The known compounds are those in which Py is 2-pyridyl or 5-ethylpyrid-2-yl, A is R 1  is methyl or methoxycarbonyl and R 2 , R 3  and R 4  are H or halogen. 2-Chloromethylpyridine is prepared by reacting 2-hydroxymethylpyridine with phosphorus oxychloride. p - Ethoxycarbonylbenzyl bromide is prepared by reacting ethyl p-toluate with N-bromosuccinimide. Pharmaceutical composition having hypoglycaemic activity, for oral administration, comprise a compound I or II together with a pharmaceutical carrier.
Patent GB-492069-A (GB)
Title: Spark plugs
IPC: H01T13/34
Filed: 1937-06-02
Abstract: 492,069. Sparking-plugs. AC-SPHINX SPARKING PLUG CO., Ltd., and CORBIN, D. H. June 2, 1937, No. 15345. [Class 7 (iv)] An insulator 2 of refractory material, such as alumina, is conically seated within a part 7 of the casing made of material of low or negligible coefficient of expansion, such as a nickel-cobalt-steel alloy. A thin coating 9 of soft metal, such as copper or silver, may be interposed. A spring 3, secured to the central electrode, is attached also to the external lead. The upper part 6 of the shell may be formed of mild steel or bronze, and is lined by mica 8 and a further insulator 5.
Patent GB-1204795-A (GB)
Title: Improvements in packaging circuitry
Inventor: DIXON JOHN GORDON
IPC: H01L25/16
Filed: 1968-03-29
Abstract: 1,204,795. Circuit assemblies. MUIRHEAD Ltd. 20 Dec., 1968 [29 March, 1968], No. 15399/68. Heading H1R. A circuit assembly comprises a can into which is fitted a rolled flexible printed circuit on which electrical component packs are mounted. A strip of insulating material carrying on both sides printed conductors is wound around a former and packs are soldered to the conductors on one of the faces, Fig. 1 (not shown). The sheet is then wound into a scroll, Fig. 2, and placed in a metal can 8 and potted. Connecting wires 7 are connected where desired before potting. In an alternative arrangement the packs are attached to the insulating strip as it is wound stage by stage around a cylindrical former and the former placed on a can with the scroll on it or the former can be removed. The components are provided with curved leads which are in an unstressed condition by being shaped to follow the curvature of the strip in its rolled form before being attached to the connection points on the conductors of the strip.
Patent GB-1118212-A (GB)
Title: Apparatus for drying webs of sheet material
Inventor: WHITAKER KENNETH LANGSHAW
IPC: B41F23/04
Filed: 1965-04-12
Abstract: 1,118,212. Drying webs. BRISTOL FAN CO. Ltd. 7 April, 1966 [12 April, 1965], No. 15435/65. Heading F4G. The effective width of an elongated nozzle 4 through which hot air is ejected on to a web of sheet material to be dried can be adjusted to suit the width of the web by a rotatable sleeve 6 having an aperture formed with two parallel longitudinal sides 8 and two inclined, converging sides, which aperture co-operates with pressure equalizing holes 3 formed in a fixed outer sleeve 2 which leads through the nozzle to the outlet slot 5. Rotation of the sleeve 6 relative to sleeve 2 closes the apertures 3 successively from the ends of the sleeve 2.
Patent GB-150844-A (GB)
Title: An improved dibber applicable also as a transplanting tool
IPC: A01C5/02
Filed: 1919-06-19
Abstract: 150,844. Kneebone, R. June 19, 1919, Planting-tools. - A dibble or transplanting- tool comprises a tube or cylinder mounted at the lower end of a handle or stem and consisting of two semitubular parts one of which is fixed while the other is hinged and provided with means for actuating it. Fig. 1 shows the hinged part a<1> provided with an arm g connected to an actuating-rod e passing through the tubular stem b. It is normally held closed by a spring i, and is opened by pressing on a knob h. The fixed part a<2> is integral with the stem b. The lower edges a<3> are sharpened and a foot-piece d is formed on one or both parts a<1>, a<2>. In a modification, the cross handle f is hinged and connected by a rod to the hinged part a<1>. In another modification, the stem b is of wood and is riveted to the metal tubular part, the actuating-rod being external to the stem. In another, the semi-tubular parts are riveted to malleable castings.
Patent GB-565295-A (GB)
Title: Improvements in and relating to electric protective switches
IPC: H01H73/34
Filed: 1943-09-21
Abstract: 565,295. Automatic circuit-breakers ; arc - - rupturing. BRITISH THOMSONHOUSTON CO., Ltd. Sept. 21, 1943, No. 15454. Convention date, Sept. 26, 1942. [Class 38 (v)] A protective cut -out device comprises a fusible cut-out 51 which may be of the construction described in Specification 528,629 [Group XXXVI], for dealing with very large overloads, and, in series and structurally combined therewith, a pair of circuit-breaking contacts 20, 21 carried by relatively-movable inner and outer tubes 18, 17 of, or lined with, gas-evolving insulating material, which contacts are normally latched closed, but capable of separation on moderate overloads to break the circuit by an overload coil, which responds also to the fuse-rupturing current to produce contact-separation after the circuit is cleared by the fuse. Manual release of the contacts is also provided for. Movable contact 20 is formed by a flange on a metal member 19 to which the upper and lower parts of casing 18 are screw-threadedly attached. A metal member 39 is screwed into the lower casing-part and the fuse 51 is screwed into member 39, with its lower terminal 51 in contact with means connected electrically to the terminal 61. Member 39 is connected to member 19, and hence to the other terminal 16, by way of conductors 40, 42 and overload coil 41, which is supported in a magnet structure 45 fixed on a guide 44 for the plunger 46. A trip rod 85 guided in a sleeve 47 serving as a stop for plunger .46, is movable against the action of spring 86 so that an end 88 thereof rises and releases the retaining mechanism, whereby the entire casing 18 with its contact 20 is forced downwards to open the circuit at contacts 20, 21, the arc being drawn in the annular space between casings 17, 18 and quenched by the gas-evolving material. The upper closure 32 of casing 17 supports by means of rod 34 a plate 35 between which and a latchsupporting bracket 31 carried by casing 18 is a throw-off spring 36. Plate 35 also carries a U-shaped member 63, the yoke of which lies within the bracket 31 and is normally engaged by the latch 67 pivoted at 66 to the bracket. Latch 67 in turn is normally retained by engagement of a projection 67b thereon by a part 68 of a trip shaft 69 urged clockwise into retaining position by a spring 71. The shaft 69 is rotated to free latch 67 by the end 88 of trip rod 85 engaging a pin 75 to rotate arm 74. The latter can also be rotated by lever 78 and a cooperating rod 80 attached to a pivoted, poleoperated, eye-member 81. In resetting, the lower lip of notch 67a is engaged by member 63 and rotated clockwise, and pins 73 on latch 67 engage arms 72 on the part 68 to enable 67b to pass through notch 70 in part 68. A polemounted operating member for engaging eyemember 81 and the depending fuse-part 55 for renewing the fuse is also described, Fig. 10 (not shown). The time/current operating characteristic of the device is illustrated by a curve, Fig. 1 (not shown).
Patent GB-640928-A (GB)
Title: Strickling machine
IPC: B22C13/02
Filed: 1947-06-12
Abstract: 640,928. Moulding-machines. MEUNIER, O. G. J. June 12, 1947, No. 15468. Convention date, Dec. 14, 1942. [Class 83 (i)] A strickling machine has a vertical strickleholding spindle 26 which is continuously rotated and can be moved vertically by hand-controlled power drive and be adjusted horizontally. The spindle 26 is mounted in bearings in a slide 27 which can be adjusted vertically by handoperated means 37, 35 on a slide 29 which can be adjusted horizontally on a beam 6 by a hand wheel 33 and screw 32. The spindle 26 is rotated by a motor 7 through reducing gearing and a clutch 11 in a box 9, a shaft 10, and a worm 23 and worm-wheel 24, both feathered to slide on their shafts. The beam 6 can be adjusted vertically on a sleeve 3 by a screw 19 which can be rotated in either direction through spur gearing 18, 17, Fig. 3, bevel gearing 13, 13<SP>1</SP>, 14, Fig. 1, and hand-controlled clutches 12, 121 from the shaft 10. The sleeve 3 can be rotated on a vertical pillar 2 carried by feet 1 and is secured in desired angular position by a catch 20 adapted to engage any of the notches 21. The slide 29 carries a cylindrical protractor dial 42 and the tool-holder 39 may carry a pointer, not shown, to co-operate therewith to assist in the angular location of mould parts not made by strickling. Scales are also provided on the beam 6 and spindle 26.
Patent GB-960771-A (GB)
Title: Lockset plates and latchset plates
IPC: E05B3/06
Filed: 1962-04-24
Abstract: 960,771. Latches; stud and socket fastenings. EDWIN SHOWELL & SONS Ltd, and G. D. SHOWELL. March 28, 1963 [April 24, 1962], No. 15499/62. Headings E2A and E2B. A lockset or latchset plate 10 is provided with a bush or bushes 23 which are made of nylon or other resilient compressible material, and a marginally flanged finishing plate 12 for covering the front face of the lockset or latchset plate, the finishing plate being provided with a rearwardly projecting stud or studs 24 in positions corresponding to that or those of the bush or bushes, the arrangement being such that when the finishing plate is pushed rearwardly on to the lockset or latchset plate the stud or studs will be forced into the bore or bores of the bush or bushes and will be frictionally retained in position. As shown the plate 10 is provided with a central bearing bush 13 sleeved with a nylon ring 14 for a lever handle 11, which is retained by a circlip 19 and movement of which is controlled by a spring 17 and a stop plate 18.
Patent GB-291956-A (GB)
Title: Improvements in steering wheels for vehicles
IPC: B62D1/08
Filed: 1927-06-11
Abstract: 291,956. Clifford Covering Co., Ltd., and Greenland, A. E. June 11, 1927. Flexible steering- wheels comprising wire or strip-metal spokes have the spokes secured to the hub by a casting-in operation. The spokes may be built up of groups of steel &c. strips, wires, or rods 3, Fig. 2, of any cross-section either arranged in contact or spaced to form tapering arms, and are cast into an aluminium &c. hub 1 and claw-members 4, attached as by screws to the rim 2. The wires &c. 3 may have head 5 to increase their hold. Alternatively, each spoke may be formed by a blade 6, Fig. 3, having slots 7 to impart flexibility, the ends being preferably provided with recesses or projections (not shown). The claws 4 may be omitted, the outer ends of the blades being bent to lie against the rim 2 and secured directly thereto. The spokes may be coplanar or inclined, and may be sheathed in celluloid &c. tubes stretched over them in a plastic condition.
Patent GB-237703-A (GB)
Title: Improvements in or relating to the sinking of shafts and the like in water-bearing strata
IPC: E21D1/10
Filed: 1924-06-30
Abstract: 237,703. Siemens Bauunion Ges., Kommanditges., and Sichardt, W. June 30, 1924. Shafts.-In sinking shafts &c. in water bearing strata, two or more groups of wells are arranged around the site of the shaft, each group acting at a different stage or depth from the other group or groups to effect the lowering of the water. In Fig. 1 the shaft 8 is to be sunk through water bearing strata 1, 2, 3 to a seam 7 to be worked, a water bearing stratum 4 being below the seam. The shaft is sunk to near the water level 14, and galleries, which may branch, are driven, water being then removed through wells 9 and pipes 12; as the water level falls, the shaft is sunk a further stage and further galleries are driven permitting further lowering of the water level by wells 10 and suction pipes 13. Wells in one series of galleries are staggered relatively to those of the series of galleries next above or below. Wells 18 may be sunk into the strata 4 to reduce the water pressure therein and so safeguard the working of the seam 7. Wells may be driven from the surface or from an upper gallery and connected to a delivery pipe in a lower gallery. Pumps may be arranged in the wells or in enlargements of the galleries, or both such arrangements may be used. Lowering of the water may be assisted by wells in the shaft 8; the series of galleries may then be spaced at greater vertical distances. In Fig. 3, successive groups of inclined wells 37 - - 40 are employed together, if desired, with a well 44 in the shaft 36; inclined wells may also be used in Fig. 1 in addition to the vertical wells. In Fig. 7, the shaft is sunk through a dry stratum 60, a well 48 sunk into the lower wet stratum and the delivery pipe 47 of the well surrounded by a tube 59 bedded on packing 58 and filled with water beyond the hydrostatic level 61 of thewater in the wet strata to exert a counter pressure; galleries and wells are then provided as before. The shaft may be supported with concrete blocks with which a packing layer is applied and the final casing then made.