baber/WOPTO huggingface dataset:
Patent GB-618536-A (GB)
Title: Improvements in or relating to extrusion apparatus
IPC: B29C48/09
Filed: 1946-07-30
Abstract: 618,536. Extrusion apparatus. B. X. PLASTICS, Ltd., and NICHOLAS, D. C. July 30, 1946, No. 22728. [Class 87 (ii)] In apparatus for the extrusion of screw-threaded tubes or coils of plastic material, rubber, or rubber like material, a feed screw 2 is attached to or made integral with a mandrel 12 protruding up to or beyond the extrusion orifice of a die 5, a helical thread being provided either on the internal surface of the die or on the mandrel. The die which, as shown, has a screw-threaded bore 9 is held in an annular mounting 4 by means of four adjusting screws 6 and a lock nut 7. The die can be adjusted to vary the width of the annular feed passage 14 whereby the amount of plastic fed to it is controlled. Roughening of the internal surface of the die 5 lessens slip of the plastic material as it passes through the screw-threaded bore 9 so that the resultant tube will have an external screw-thread on it. If the diameter of the mandrel is made approximately equal to the minimum diameter of the screw-thread a coil will be extruded. For the production of internally threaded tubes the mandrel 12 instead of the die is given a screw thread. Wire or other metal reinforcement to be embodied in or wound upon the tubes or coils may be fed forward through the stationary or rotary parts of the die, and the die member 5 may contain one or more extra conduits through which threads, strips or tubes, which are not rotated, may be extruded on to the coils etc. to produce decorative effects.
Patent GB-349375-A (GB)
Title: Bicycle support
IPC: B62H1/02
Filed: 1930-07-29
Abstract: 349,375. Bicycle supports. TÍRNGREN, E., Kristdala, Sweden. July 29, 1930, No. 22784. Convention date, June 20. [Class 136 (i).] A support attached to a cycle frame comprises a clamping device consisting of two members 3, 4. secured to the chain stays 6 &c., the member 4 being formed with lugs 4<1>, 16 forming bearings for the upper arm 9 of a cranked prop 10, which is held in the raised or lowered position by the engagement of a ball, roller, &c. 21, carried by a plate 20, with one or other of two depressions 17, 18, Fig. 5, in the lug 16, under the action of a compression spring 13, the ball &c. passing along a slot 19 from one depression to the other. The plate 20 is loose on the arm 9, and is prevented from rotating relatively to the prop by means of projections 22 engaging each side thereof. The parts of the spring catch may be reversed or otherwise arranged. The lower end of the prop 10 is provided with an adjustable foot 11 adapted to screw into the prop and to be locked by a nut 12.
Patent GB-485184-A (GB)
Title: Improvements in and relating to the regulation of feed water for boilers and the like
IPC: F22D5/00
Filed: 1936-08-21
Abstract: 485,184. Feedwater regulators for steam boilers. AKT.-GES. BROWN, BOVERI, & CIE. Aug. 21, 1936, No. 23018. Void. Convention date, Aug. 26, 1935. [Class 123 (ii)] The water supply to a forced flow boiler having a separator drum 1 into which the boiler steam and water mixture is so directed as to cause the mixture to rotate is controlled by a valve 13 actuated by a diaphragm 11 acted upon by either the centrifugal force of the rotating water or by the static pressure of a head of water corresponding under normal conditions to the head which the normal quantity of water in the separator would assume when at rest.
Patent GB-903421-A (GB)
Title: Process for the production of cobalamin/peptide compositions
Inventor: SHERLOCK ROY
IPC: A61K38/16
Filed: 1958-07-18
Abstract: Cobalamin-peptide complexes are prepared by mixing a cobalamin with a peptide from corn steep liquor.  The process may be effected by using heat sterilised and filtered corn steep liquor, preferably the latter has been maintained at an acid pH e.g. below about 3.  Most preferably (a) the peptide is obtained from the said liquor by extraction therefrom into an organic solvent and re-extraction into water, and (b) the corn steep liquor or peptide is treated with cyanide ions prior to mixing into cobalamin.  The cobalamin-peptide complexes may be precipitated from aqueous solutions containing, e.g. (i) at least 1000 and preferably about 5000 micro g/ml of cobalamin when using acetone as precipitating agent, or (ii) about 500 micro g/ml when using ammonium sulphate as said agent.  It is preferred to use such a quantity of cobalamin that the solutions have an optical density ratio of 0.7-1.3 at 278 and 361 mm ; such solutions are stated to have generally a cobalamin/peptide ratio of 1:3-9.  In the examples glucose and phenol are optional additives to the corn steep liquor prior to extraction with phenol/benzene, to which butyl acetate may be added before the aqueous extraction step, and the aqueous layer may be washed with butanol.  In example 3, solid cobalamin/peptide complex was isolated by freeze-drying of a solution having a cobalamin/peptide ratio of 1:9.8 and an optical density ratio of 1:1.25 at 278 and 361 mm .  The complexes may be made up into pharmaceutical preparations using solid or liquid diluents.
Patent GB-1163374-A (GB)
Title: Improvements in or relating to the Heating of Stone
Inventor: BRANDT HERBERT
IPC: F26B17/16
Filed: 1967-05-18
Abstract: 1,163,374. Heating granular material. H. BRANDT, and A. KRITZLER, [trading as APPARATEBAU ROTHEMUHLE BRANDT & KRITZLER]. 18 May, 1967 [25 May, 1966; 2 Nov., 1966], No. 23060/67. Heading F4U. In a plant for heating stone to be used for road-making, fine-grained material (i.e. less than 2 mm. grain size) is heated by indirect heat exchange separately from coarse-grained material (i.e. more than 2 mm. grain size). As shown, coarse-grained material from a shoot 3 is heated in a rotating drum 1 in countercurrent to combustion gases from an oil burner 2. The combustion gases then pass through a primary dust collector 9 and the tubes 11a of a trickle heater 11 for fine-grained material which is supplied by conveyers 17 to the top of the heater and removed by screw conveyers 18. Material discharged from drum 1 is supplied by a conveyer 5 to a screening device 6 and the screened fractions are collected in hoppers 7 for subsequent supply to a weighing device and admixture with tar. Material from separator 9 and conveyers 18 may be supplied to conveyer 5 or to the appropriate hoppers 7. Heater 11 has a vertical partition 20 which enables materials of different degrees of fineness to be heated. Waste combustion gas from heater 11 is withdrawn by a fan 12 and discharged to atmosphere via mechanical dust collectors 13, 14 and stack 16. The tubes of heater 11 are of rhombic or lenticular cross-section arranged with their larger diameters vertical and the tubes are in mutually staggered relationship; bars may be secured to their upper ends to reduce abrasion. Alternatively, hollow, vertical plates may be used in place of tubes. In a modification (Figs. 7 and 8, not shown), the trickle heater is independently fired by an oil burner, the combustion gases being circulated through two vertically spaced tube bundles. The gases are partly re-circulated and partly discharged to atmosphere under thermostatic control. Inverted V-shaped baffles are provided between the tube bundles to collect evolved vapours which are removed by tubes disposed beneath the baffles.
Patent GB-600221-A (GB)
Title: Improvements in gauging devices
IPC: G01B3/44
Filed: 1945-09-07
Abstract: 600,221. Gauges. STEVENS, A. H. (Sheffield Corporation). Sept. 7, 1945, No. 23089. [Class 106 (ii)] When one or more of the dimensions of a testpiece are outside the limits of tolerance, short-circuiting contacts are opened to light corresponding lamps and to raise the potential of the control-grid of a gas-filled tetrode, which thereupon conducts and energizes a signalling device in the plate circuit. The invention is applied to a gauging device of the kind described in Specification 551,956, the test-piece being placed on a slide 22 and moved into contact with a number of gauging fingers 18, 19, 20, 21, each of which controls a member 28, Fig. 2, which opens contacts 24, 25 or 26, 27 if the corresponding dimension is over or under size, the tolerance being set by adjustable stops 29, 29<1>. The circuit is supplied by a transformer 40, 41 with an alternating voltage which is rectified by the tetrode 47. With all the contacts 24, 25 and 26, 27 closed, the potential of point C and therefore of the control grid 49 is low and the tetrode does not conduct. When any pair of contacts opens, the corresponding lamp 31 or 32 energizes to indicate through a screen 13, 14 or 15, over or under size in the appropriate dimension, the potential of the control grid rises and the tetrode conducts, whereupon the master lamp 12 in the plate circuit energizes to indicate a faulty testpiece. A pilot lamp 17 is alight continuously when the apparatus is functioning.
Patent GB-662603-A (GB)
Title: Commutators
IPC: H01R43/08
Filed: 1949-09-06
Abstract: 662,603. Commutators for dynamo-electric machines. ELECTROLUX CORPORATION. Sept. 6, 1949 [Oct. 4. 1948], No. 23101/49. Class 35. A commutator is made by bending a metal strip 10 having lateral projections 14 round an insulated hub 24, bending the projections down under a flange 26 on the drum and slotting to separate the segments. The root portions 16 of the projections have parallel sides and on one side tongues 20 are struck out for attachment of the armature connections by soldering or pressing down the tongues. The hub is insulated by cup-shaped members 28, e.g. of moulded impregnated paper, put on from each end, such that their skirt portions 30 meet on the outer surface of the hub, and the end portions 32 conform to the shape of the hub. The joint between the skirt portions may be bridged by an insulating strip 36, e.g. of mica, and washers 38 may be inserted between the inturned ends of the bars. The slotting may take place before or after impregnation.
Patent GB-924060-A (GB)
Title: Tower type pneumatic separator
Inventor: ROWELL LORNE ARCHIBALD
IPC: A24B5/10
Filed: 1961-06-27
Abstract: 924,060. Pneumatic separators. IMPERIAL TOBACCO CO. OF CANADA Ltd. June 27, 1961, No. 23217/61. Class 117. Material to be separated, e.g. tobacco leaves and stems, is fed to a separating chamber 7 through a duct 23 and a rotary air lock 24 which imparts to the material a substantial velocity across the chamber and across an upwardly flowing air stream fed into the base of the chamber through ducts 14 with adjustable deflectors 15. The air stream flows through a vibrating screen 16 extending across the chamber and carries off the lighter particles through ducts 8, 9 to a separator 10 associated with a fan 11. The lighter material is separated from the air and passes through an air lock 25 to a discharge 26. The air may be discharged to atmosphere from the fan, or it may be passed through a filter and returned to the air inlet of the separator chamber 7. The heavier particles fall on to the screen and are carried through a slot 20 to a shoot 21. A foraminous belt may replace the flat screen 16, and a combined belt and air lock arrangement may replace the duct 23. A damper 29 in the air duct of the fan controls the air velocity in the chamber.
Patent GB-443477-A (GB)
Title: Improvements in composite or built-up boards, panels or the like
IPC: E06B3/70
Filed: 1935-08-19
Abstract: 443,477. Built-up boards. HUGUES, R., and ETABLISSEMENTS, E. HUGUES, Wisches, Bas-Rhin, France. Aug. 19, 1935, No. 23239. [Class 145 (ii)] The core of a builtup board, panel, or the like is composed of elements each comprising a pair of strips 2<a> overlapped at the centre with a single strip 2<b>, additional spacing pieces 2<c>, 2d being provided at the ends and overlapping portion. The elements are alternately reversed, and are spaced apart so as to provide air channels 5 therebetween. The side pieces 1 extending the whole length of the board are built up from small pieces ; cross members extend across the ends of the board ; the elements engage these cross members but are not glued thereto, being held in their spaced relationship solely by the veneer which is applied to both faces of the core.
Patent GB-282492-A (GB)
Title: Improvements in or relating to tobacco pipes
IPC: A24F5/06
Filed: 1926-09-21
Abstract: 282,492. Frais, S. Sept. 21, 1926. Tobacco pipes having an outer shell and a detachable clay inner bowl, as described in Specification 229,167, are fitted with a resilient liner a. A steel stamping is bent to form a cylindrical upper portion a and a semi-cylindrical part b with adjustable tongues c. The upper portion is formed with a flange e, interlocking tags d, and projections f, which bite into the material of the outer portion of the pipe bowl.
Patent GB-376985-A (GB)
Title: Improvements in combined typewriting and computing machines
IPC: F16D31/02
Filed: 1931-08-19
Abstract: 376,985. typewriters. FAIRWEATHER, W. C., 65, Chancery Lane, London.-(Elliott-Fisher Co. ; 342, Madison Avenue, New York, U.S.A.) Aug. 19, 1931, No. 23334. [Class 100 (iv).] Type-lever actions.-In a calculating typewriter each numeral type-lever 36 pivoted at 37 is swung up, to strike on the shiftable platen, by a lever 34 pivoted at 35 and operated from the numeral key-lever 31 through a pin 61 carried by a cradle 63 pivoted on the key-lever at 64 and adjustable thereon by screws 65.
Patent GB-295718-A (GB)
Title: Improvements in a device for grinding and polishing spherical and aspherical lenses
IPC: B24B13/02
Filed: 1928-08-13
Abstract: 295,718. Holman, A. J. Aug. 18, 1927, [Convention date]. Lenses, grinding and polishing; spindles and spindle mountings. - In a machine for grinding and polishing lenses having spherical or nearly spherical surfaces, the tool and lens are oscillated respectively in planes at right-angles to each other and are rotated slowly in opposite directions about their axes, whereby the surface of the tool is worn evenly. The machine consists of a base 1 carrying a frame 4 having a bracket 5 thereon to which is secured a frame 7 rotatably supporting a worm wheel 10 secured to a sleeve 12 upon which is rotatably mounted, on ball bearings 15, an outer sleeve 16 carrying a worm wheel 18. The sleeve 16 carries, by means of ball bearings 22, 26, Fig. 4, and a ring 19 forming a universal joint, an annular member 32 to which is secured, by depending rods 34, a frame 36. A boss 37 on the frame 36 has secured therein a sleeve 38, Fig. 6, carrying a rotatable sleeve 39 with a rectangular boss 40, which slides between guides 41, 42 on the base, and pivoted to the sleeve 39 is a connecting-rod 47 attached to a crank pin 48 adjustable on a crank 50 on a shaft driven by a spur-wheel 58; rotation of the crank causes oscillation of the frame 36 &c. about the centre of the universal joint. For grinding convex lenses, a lap 60 is carried by a spider 61 adjustably secured to the rods 34, the hub 66 of the lap being secured to a sleeve 65 fixed in the spider, and a rod 68, slidable in the sleeve 38, has a cross pin 69, which enters a slot 70 in the sleeve 65 when the machine is used for polishing or for grinding concave lenses. The lens blank 71 is secured to a chuck 72 on a shaft 74 passing through a sleeve 75 and rotated therewith by keys 79 which enter slots in the sleeve, and the sleeve is pivotally and rotatably supported within the sleeve 12 by a sleeve 81 and a universal joint having ball bearings 86, 88. The lens is oscillated by a crank 95 and connecting-rod 94 pivoted to a sleeve 91 rotatable on the sleeve 75. The sleeves 12, 16 are rotated, to rotate the lap and the lens respectively, in opposite directions by worms 116, 117 engaging the wheels 18, 10 and rotated through gearing from a vertical shaft 129, which also rotates the crank 95 at a speed slightly different from that of the crank 50. Concave lenses are ground by interchanging the positions of the lap and the blank; a spring between the top of frame 36 and pin 69, which enters the slot 70, provides the grinding pressure, and during the polishing of convex lenses with a soft tool, the shaft 74 is locked within the sleeve 75 by a set screw. When polishing c§ncave lenses, the rod 68 is secured by a screw &c. within the leeve 65, the polishing pressure being provided by the weight of the polishing element on the shaft 74 or additional loading on the shaft. For grinding non-spherical lenses, the departure from the true sphere may be regulated by displacement of the centres of oscillation of the lens and of the lap.
Patent GB-317080-A (GB)
Title: Improvements in or relating to x-ray installations
IPC: H05G1/32
Filed: 1929-07-30
Abstract: 317,080. Naamlooze Vennootschap Philips' Gloeilampenfabrieken. Aug. 11, 1928, [Convention date]. Regulation, automatic; systems depending on static transformers.-The operation of an X-ray tube which receives its H.T. current through a transformer is rendered, within limits, independent of variations of the effective value of the supply voltage by employing a transformer comprising a core which is highly saturated under ordinary conditions of operation, and a primary circuit having a large resistance, which may be principally included in the supply leads, or may be incorporated in the primary winding itself, or may take the form of a variable resistance connected in series with the winding.
Patent GB-914956-A (GB)
Title: Improvements in and relating to apparatus for the automatic control of a current generating unit
IPC: H02J3/38
Filed: 1959-07-08
Abstract: 914,956. Self-contained generating systems. CESKOSLOVENSKE ZAVODY NAFTOVYCH MOTORU PRAHA NARODNI PODNIK., HOUBA, J., and HRADEK, V. July 8, 1959 [July 10, 1958], No. 23526/59. Class 38 (4). In a 3-phase self-contained generating system whereby connection of an electrical load 5 to the generator terminals causes the driving I.C. engine to be started, the starting relay 20 and stopping relay 22 each have a plurality of coils connected to two or more of the distribution cables. In the embodiment shown, one coil is connected into each phase wire and one coil into the neutral conductor. In another embodiment, one coil is connected into each phase wire only. Another relay 18 changes the connections when the generator G exceeds a determined voltage.
Patent GB-737673-A (GB)
Title: Improvements relating to the interruption of reactive electric circuits
Inventor: YOUNG AUSTIN FREDERICK BRABANT
IPC: H01H33/59
Filed: 1952-09-19
Abstract: 737,673. Protective arrangements; transformer arrangements. REYOLLE & CO., Ltd., A. Sept. 10, 1953 [Sept. 19, 1952], No. 23623/52. Class 38 (4). [Also in Group XXXVII] Rise of transient voltage on breaking of a circuit including a reactor 10, Fig. 1, is reduced by providing a resistor 13 connected across a tapped portion of the reactor winding, and contacts 14 in the resistor circuit which are closed as a circuit-breaker 16 opens. Fig. 4 shows a transformer 50 with the primary winding tapped for the resistor 13, the contacts 14 being operated by a relay 56 connected in series with contacts 54, 55 in a pilot circuit, the latter contacts being operated by circuitbreakers 52, 53 in the transformer primary and secondary circuits respectively. Contacts 14 are closed when one circuit-breaker is open and the other opens.
Patent GB-241003-A (GB)
Title: Improvements in tines for haymaking and like machinery
IPC: A01D80/00
Filed: 1924-10-07
Abstract: 241,003. Bamford, J., and Bamford, C. J. Oct. 7, 1924. Haymaking. - The tines of haymaking machinery such as swathturners and side-delivery rakes of the kind wherein the tines are controlled by rotary mechanism that keeps the ends of the tines always directed towards the ground are curved, looped, serrated, or corrugated to take hold of the crop more efficiently. In the form shown the shank 2 of the tine is formed with lateral loops 3 separated by intervening straight portions 4. The undulations or corrugations may be formed by securing additional pieces or members to the tines.
Patent GB-676312-A (GB)
Title: Improvements in auxiliary equipment for electrically propelled vehicles
Inventor: BEASLEY JAMES
IPC: H02J7/14
Filed: 1949-09-13
Abstract: 676,312. Auxiliary supply equipment. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. July 27, 1950 [Sept. 13, 1949], No. 23634/49. Class 38 (iv). Auxiliary lighting, or other, loads 8, 10, 12 on a trolley bus or like electrically-propelled vehicle are supplied from a battery 6 and associated motor-generator set 1, 2, the motor 2 of which has a series characteristic and is supplied from an external source 3, 4. To prevent racing of the set under conditions of low generator loading, a relay 14, 15, responsive either to generator or motor current, is adapted to connect a speed-limiting resistor 18 either across the generator or in series with the motor when the current through the relay coil is less than a predetermined value. The usual charging cut-out 7 is provided in the generatorbattery circuit.
Patent GB-418698-A (GB)
Title: Improvements in or relating to rotative wing aircraft
IPC: B64C27/54
Filed: 1933-08-25
Abstract: 418,698. Aircraft with rotary wing systems. COATS, A. G., Gloucester House, Park Lane, London, and HAFNER, R., 47, Mantlergasse, Vienna. Aug. 25, 1933, No. 23645. [Class 4.] In helicopters or aircraft having an autorotative wing system each blade is connected, at a point intermediate its ends, to the hub by a torsionally-flexible radial tension member. The tension member may be hinged to the hub by a universal joint which permits the blades to flap up and down and to have a limited lateral movement in the plane of rotation. In one form, each blade 1 is hollow, is rotatably mounted on a member 2, and is connected intermediate its ends by a cable 8 to the member 2 which is pivoted about a horizontal axis on the hub 4 and which may be free to oscillate through about 4‹ on either side of its normal position about a vertical pivot 7. The cable 8 is expanded at its ends which are connected by ferrules 10 screwed on to the member 2 and a plate 12 attached to the blade 1. The blade 1 is provided with an arm 14 operated by a link 15 from mechanism such as described in Specifications 385,101 and 418,212. A stop 13 supports the blades when at rest. In a modification the tension member 8, Fig. 6, is arranged outside the blade which is mounted on a pivot 16, outward movement being limited by a stop 18. In a further modification, two cables connected at a common point to the blade may be used. A torsionally-flexible strip or a block of rubber in compression between a relatively rigid tension member and the blade, or hydraulic or pneumatic cushions or a helical spring under compression may replace the cable.
Patent GB-730042-A (GB)
Title: Laminated fabrics
Inventor: FORWARD MILTON VAUGHAN
IPC: D06M17/08
Filed: 1952-09-20
Abstract: 730,042. Laminated sheet materials. BRITISH NYLON SPINNERS, Ltd. Oct. 12, 1953 [Sept. 20, 1952], No. 23645/52. Class 140. An interliner fabric containing at least 75 per cent by weight of a synthetic linear polyamide is moistened or impregnated with a solution of a mono- or dihydric monocuclear phenol dissolved in a liquid paraffin or cycloparaffin or halogenated derivative thereof boiling at 60‹ C. or over and is placed between outer plies of fabric containing at least 25 per cent by weight of a synthetic linear polyamide and the assembly laminated by heat and pressure. Fabrics containing an odd number of plies greater than 3 may be formed, the plies containing at least 75 per cent of polyamide alternating with those containing at least 25 per cent, which latter always form the outside plies. Suitable phenols are phenol, resorcinol and m-cresol. The solvent may be petroleum ether, cyclohexane, carbon tetrachloride or pentachlorethane. The laminated fabric may be washed in dilute aqueous alkali, rinsed and dried. In an example a fabric consisting of 100 per cent polyhexamethylene adipamide is immersed in a solution of phenol in cyclohexane and placed between two outer plies also of polyhexamethylene adipamide. The assembly is pressed at 160‹ C.