baber/WOPTO huggingface dataset:
Patent GB-1100284-A (GB)
Title: Improvements relating to commutating electrical machines
Inventor: TAYLOR PHILIP LESTER
IPC: H02K3/16
Filed: 1964-05-26
Abstract: 1,100,284. Improving commutation. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 6 May, 1965 [26 May, 1964], No. 21717/64. Heading H2A. A commutator type dynamo-electric machine includes sparking - suppressing flux - trapping sheet-form conductive material so located in a flux zone surrounding the coils of the machine's armature and of such sheet thickness that said material will have little or no effect as regards relatively slow flux changes, but abrupt change of flux in said zone due to incipient sparking will cause eddy currents in the material, thereby opposing change of stored energy in said zone. The flux trap may consist of a stationary copper cylinder surrounding the aperture and having a window adjacent each stator pole so as to prevent tooth-ripple loss. End windings may be shielded by other cylinders concentrically arranged with respect to the first. Alternatively, or additionally the armature windings in each slot may be wholly or partially surrounded by copper foil, insulated from the laminations so as to avoid loss due to slow changes of flux. The copper foil may be replaced by a " sheet " of wires or of conductive strips. The invention improves commutation by shielding the armature conductors from rapid flux changes during commutation and by reducing the armature inductance during this time. The shields however are made sufficiently thin so that (unlike conventional damping windings) they have little or no effect in response to normal rotational-speed flux changes.
Patent GB-154988-A (GB)
Title: Improvements in or relating to variable-lift fuel valves for oil engines
IPC: F02M63/00
Filed: 1919-09-04
Abstract: 154,988. Doxford, R. P., and Keller, K. O. Sept. 4, 1919. Regulating; valve-gear.-Relates to actuating- mechanism for fuel-injection valves, whereby the needle of the valve may be given a variable lift under the control of an automatic governor, but without varying the period of opening or the point at which the opening takes place. The valve, which is of the type described in Specification 127,980, [Class 7 (iii), Internal-combustion engines, Carburetting-apparatus &c, for], comprises a valve needle 3 in a casing G<2>, a plunger 1 of slightly larger diameter than the valve 3, and an intermediate member 2. The needle is kept on its seat by fuel pressure acting on the plunger 1, or, when the fuel is turned off, by the spring LS. The casing G<2> carries a screw-thread T engaging a nut N connected by an adjustable arm A and link L to the governor. When the nut is screwed down by the action of the governor, it engages a collar K and prevents the needle 3 from following the movement of the member 2 when lifted by the lever RL. Leakage of oil past the plunger 1 is drained by a duct D. In a modification, the upward movement of the valve needle is limited by lugs on levers, the position of which is determined by an eccentric operated by the governor.
Patent GB-460594-A (GB)
Title: Manufacture of colouring matters from ª¤-arylene dicyanides
IPC: C09B47/067
Filed: 1935-07-31
Abstract: Metal-free phthalocyanines are prepared by heating an o-arylene dicyanide of the benzene or naphthalene series with a small proportion of an ethanolamine.  The process is rapidly effected at a comparatively low temperature and with good yields.  In examples: (1) phthalonitrile is heated with a little distilled technical triethanolamine at 170--180 DEG  C. for about 4 hours; the dye in crystalline form is finely subdivided by solution in concentrated sulphuric acid and precipitation by pouring into water; (2) 1.2-dicyanonaphthalene is heated in a little triethanolamine at 220--230 DEG  C. for 1\ba1/2\be hours; (3) 4.5-dichlorphthalonitrile is heated with a little triethanolamine at 220--225 DEG  C. for 1\ba1/2\be hours; (4) phthalonitrile is heated with a little mono- or di-ethanolamine at 170--175 DEG  C.  Mention is also made of 3-and 4-chlorphthalonitriles, and 3- and 4-nitrophthalonitriles as starting materials.  Specifications 322,169, [Class 2 (iii)], 389,842, 390,149, and 410,814 are referred to.
Patent GB-1163507-A (GB)
Title: Improvements in rectifier circuits
IPC: H02M7/757
Filed: 1968-05-08
Abstract: 1,163,507. Rectifying. BROWN, BOVERI & CO. Ltd. 8 May, 1968 [10 May, 1967], No. 21781/68. Heading H2F. In a series arrangement of rectifier banks 4, 5, each bank is by-passed by a controlled rectifier 8, 10 and a switch 9, 11, means being provided, responsive to the initial closing movement of the contacts of one of switches 9, 11, to turn on the by-pass controlled rectifier 8 and inhibit triggering of the associated rectifier bank 4. The triggering and inhibiting means 13, 12 may be responsive to the capacitance or inductance of contacts of switches 9, 11 or, as shown, may be controlled by auxiliary contacts 14, 15 associated with the operating members 16, 17 of switches 9, 11. The by-pass devices 8, 10 may be ignitrons, or thyristors and reduce the loading on switches 9, 11. An optical link or isolating transformer may be included in the control circuits of rectifiers 4, 5, 8, 10.
Patent GB-633694-A (GB)
Title: Improvements in an apparatus for wrapping articles
IPC: B65B11/54
Filed: 1946-07-22
Abstract: Oranges, lemons, eggs, pieces of candy, coffee, sugar and flavoured powders for making drinks are wrapped in stretchable thermoplastic material, e.g., rubber hydrochloride or sheet rubber, in an apparatus which has means for heating a predetermined portion of such sheet material, forming a pocket in such heated portion, placing in such pocket the article to be wrapped, closing such pocket about such article, and severing such wrapped article from the unused portion of such sheet material.  Reference has been directed by the Comptroller to Specification 605,301.
Patent GB-229250-A (GB)
Title: Apparatus for simultaneous production of partial pictures in multiplex colour photography by splitting up the pencil of rays passing through the lens by optical means
IPC: G02B27/14
Filed: 1924-09-16
Abstract: 229,250. Jos-Pe Farbenphoto Ges., (Assignees of Lutz, F.). Feb. 13, 1924, [Convention date]. Colour photography.-In a tricolour camera, the partial pictures are obtained by a device consisting of three mirrors 1, 2, 3, Fig. 1, arranged with free spaces between their adjacent edges. Two of the mirrors 1, 2 are in the same plane and are joined at one end 4 and the third 3 crosses them, the mirror planes being at angles of 45‹ to the lens axis. The light-splitting device is arranged immediately behind the rear aperture of the lens, which is so constructed that bordering of light rays is effected only bv this aperture. Specification 199,044 is referred to. The Specification as open to inspection under Sect. 91 (3) (a) comprises also coarse focusing by adjustment of the plate-holders in the camera by means of shoulders or stops, and fine focusing by moving the lens or portion thereof. This subject-matter does not appear in the Specification as accepted.
Patent GB-1142168-A (GB)
Title: Liquid cooled continuous casting mould for the production of rectangular castings
IPC: B22D11/04
Filed: 1966-05-17
Abstract: 1,142,168. Continuous casting. MANNES-. MANN A.G. 17 May, 1966 [17 May, 1965], No. 21832/66. Heading B3F. In order to counteract the distortion of the rectangular cross-sectional shape of an arcuatepath continuous-casting, resulting from the bending and subsequent straightening of the cast strand 2 whilst its core 3 is still liquid, the cavity of the liquid-cooled mould 4, 5, 6, 7 is of trapezium shape in cross-section, the wall 4 at which the inner curve of the strand is formed being wider than the opposite wall 5, e.g. by about 2% of the average width. The short side walls 6, 7 also converge towards the bottom of the mould so that the cavity tapers downwardly. The axis of the mould cavity may be curved, Fig. 1 (not shown), or oblique, Fig. 2 (not shown).
Patent GB-189188-A (GB)
Title: Improvements in or relating to rumbles or shaking machines
IPC: B24B31/027
Filed: 1921-08-18
Abstract: 189,188. Hockley Chemical Co., Ltd., and Breeden, F. V. Aug. 18, 1921. Rumbles and tumbling-barrels.-In a rumble or shaping-machine the containers for the articles under treatment are reciprocated axially, whilst rotating, by means of an inclined cam g, which is mounted on the shaft a carrying the containers e and co-operates with two rollers h, h<1>. The roller h rotates on a fixed axis, and the roller h<1> is carried by a slide k which is pressed by a spring l against the cam; the spring engages at its end over a projection m on the slide and over a stud or bolt n carried by one of the machine standards c. The shaft a is rotated by means of a pulley f.
Patent GB-1395291-A (GB)
Title: Cell culture on semi-permeable tubular membranes
IPC: C12M3/06
Filed: 1973-05-08
Abstract: 1395291 Culturing tissue-cells CELLCO Inc 8 May 1973 [18 May 1972] 21967/73 Heading C6F Tissue-cells are grown in vitro on a plurality of capillaries having walls which are permeable to nutrients for the cells, while a nutrient medium is passed through the capillaries, and the capillaries are arranged so as to simulate a vascular network whereby cell growth on one capillary is influenced by the nutrients diffusing through the wall of another capillary. The walls of at least some of the capillaries may be sufficiently permeable to large molecules (M.W. 50,000) for products of the cells e.g. hormones, to pass through the wall into the nutrient medium, from which they may subsequently be recovered. Capillaries based on cellulose acetate and silicone polycarbonate of say, 200 microns internal diameter but different permeabilities may be employed cojointly. Collagen coated capillaries may be used. The capillaries may be arranged parallel to each other within a cell culture unit bounded by a glass shell and surrounded within the shell by a stationary body of nutrient medium. Several units may be arranged in parallel or series. The nutrient medium is oxygenated and is pH-controlled with CO 2 . Examples are directed to the growth of mouse L-cells and human chorio-carcinoma cells.
Patent GB-968291-A (GB)
Title: Improvements relating to the making of thermoplastic material in continuous sheet form
Inventor: MUMFORD IVOR GEORGE
IPC: B29C43/22
Filed: 1962-06-07
Abstract: 968,291. Making thermoplastic sheet material. JAMES HALSTEAD Ltd. June 14, 1963 [June 7, 1962], No. 21998/62. Heading B5A. Thermoplastic material 6, e.g. P.V.C., is formed into a continuous sheet by passing it through the nip of a heated calender so as to cling to an endless band 3 passing around one of the nip rolls, the sheet being cooled whilst on the band and separated therefrom. Cooling means 5 such as air or water sprays are provided and the separated sheet is taken away by a conveyer 9. The band 3 is of metal or silicone treated glass fabric and may be provided with a pattern which becomes impressed on the sheet. It is reheated at 8 before entering the heated calender rolls.
Patent GB-429970-A (GB)
Title: Improvements in or relating to driving belts
IPC: F16G5/16
Filed: 1934-07-27
Abstract: 429,970. Driving-belts. SCHERRER, H., 28, Kapellerstrasse, Berne, Switzerland. July 27, 1934, Nos. 22031 and 22032. Convention dates, July 27, 1933 and Feb. 6, 1934. [Class 80 (i)] A V-section driving-belt is composed entirely of a series of parallel layers of short pieces of leather fastened together at their ends so as to leave spaces b. As shown, the layers may grow thicker towards the outside of the belt. The Specification as open to inspection under Sect. 91 describes belts in which the pieces of leather are joined by bolting, stitching, or glueing. This subject-matter does not appear in the Specification as accepted.
Patent GB-899296-A (GB)
Title: A hollow ware service set
IPC: A47J27/122
Filed: 1959-06-26
Abstract: 899,296. Plates; dish covers. COHR'S SOLVVAREFABRIKEN A.S., CARL M. June 26, 1959 [July 3, 1958], No. 22066/59. Class 128 [Also in Group XVII] A set of shallow dished containers 16 may be used as plates or as dish covers, and when not in use may be stacked with the smallest plate uppermost. The set may also be used in conjunction with a set of containers of greater depth (see Group XVII).
Patent GB-1080522-A (GB)
Title: Improved screw thread-cutting machine
IPC: B23G1/02
Filed: 1965-05-25
Abstract: 1,080,522. Screw-cutting lathes. CRI-DAN. May 25, 1965 [June 24, 1964], No. 22106/65. Heading B3T. A screw cutting lathe comprises a headstock 8, Fig. 6, a tool holder 5 carried by a transverse carriage 6, mounted on a longitudinal carriage 10, movable on a slide 9, slidable on a bed 7, the tool 4 being moved in the cycle as shown in Fig. 2 when external screwing, or as shown in Fig. 5 when internal screwing, by cam means driven from the work spindle. For external screw cutting the tool is arranged as shown in Fig. 1, and for internal screw cutting the tool is arranged as shown in Fig. 4. Cams 17, 18, 19 and 24 are driven by a shaft 11, cam 17 providing the longitudinal movements of the tool, cams 18, 24 providing the transverse movements of the tool, and cam 19 providing the depth of cut of the tool. Carriage 6 carries spring urged end stops 67, 68, Fig. 10, which are adapted to engage the ends of a nut 73, the latter having a screw 71 screwed therein. Screw 71 is screwed into or out of nut 73 so that carriage 6 is spring- urged in the direction F or F<SP>1</SP>, Fig. 6, depending on whether an internal or an external thread is to be cut. A lever 27 is pivoted to slide 9 at 28, and due to the urging of carriage 6 in direction F or F<SP>1</SP>, rollers 26 or 26<SP>1</SP> engage projection 25 or 25<SP>1</SP> on cam 24. Cam 24 is oscillated to rock lever 27 so as to move carriage 6 transversely, by an adjustable lever 23, a lever 21, and cam 18, and tool 4 is moved towards the work at the beginning of the cycle, and away from the work at the end of the cycle. Cam 24 is carried on an eccentric 31, Fig. 9, and a ratchet wheel 54 integral with the eccentric is actuated by a pawl 36 operated by cam 19, to provide the depth of cut. To perform the cycle according to Figs. 1 and 2 a reference mark 60 on eccentric 31 is placed opposite a mark 58, and to perform the cycle of Figs. 4 and 5 mark 60 is placed opposite a mark 59. In a modification, a double eccentric is provided. Lever 27 carries a shoe 29 which slides in a channel 30 in carriage 6, Figs. 9 and 10, and the channel is integral with a pivot pin 64. The channel can be set parallel to the machine axis for cutting cylindrical threads, or can be included thereto for cutting conical threads.
Patent GB-203871-A (GB)
Title: Improvements in the application of convertible bodies to motordriven vehicles
IPC: B60P3/42
Filed: 1922-08-15
Abstract: 203,871. Brown, J. W. Aug. 15, 1922. Vehicles with removable bodies.-The body of a motor road vehicle is detachably secured to runners d on the chassis by. brackets g secured to the body and carrying pivoted clamping bolts f which engage in slotted brackets e on the runners d and are secured therein by wing-nuts h. The front of the body is secured to the back of the driver's seat by lugs and bolts l, m.
Patent GB-862635-A (GB)
Title: Improvements in or relating to gearing for machine drives
IPC: F16H35/10
Filed: 1957-07-12
Abstract: 862,635. Toothed gearing. HINZE, F. July 12, 1957 [July 13, 1956], No. 22252/57. Class 80 (1). [Also in Group XXXIV] The drive from an input shaft 1 to an output shaft 7 is effected by holding the reaction member of an epicyclic train connecting the two shafts. As shown, the carrier 5 carrying stepped planets 2, 3 engaging external and internal sun gears respectively on the shafts is adapted to be held by brake-ring members 8, 8 engaged by fluid-pressure supplied to pistons 17 in opposition to the loading of springs 13 acting on levers 12 with enlarged heads 10 between wedge-surfaces at the ends of the members 8, 8. The brake-ring members 8, 8 are supported against angular movement by springs 15 and on application they move angularly until at a certain predetermined value of reaction torque they are separated by the action of levers 12 tilting about bearings 11 to allow the carrier 5 to slip and so limit the torque transmitted. The springs 15 may be dispensed with if the springs 13 are made sufficiently strong to resist the reaction torque on the brake ring members 8, 8. The fluid-pressure for applying the brake may be supplied from a pump driven by the driving motor of shaft 1 so that the brake is gradually applied on starting the motor to establish the drive. This brake could also co-operate with a conventional holding brake for the driven shaft 7 which is released as the brake 8, 8 is engaged. Over-riding manual disengagement of the brake can be effected. by moving the levers 12 along their length to separate the members 8, 8 through the wedge surfaces. The members 8, 8 could be held against angular movement by straps, ropes or chains embracing them which are spring-loaded at one end and fixedly anchored at the other. On overload occuring the clriving motor may also be cut off by the movement of the brake members actuating a switch or a temperature sensitive switch may be actuated as a result of the heat developed by the brake slipping. Alternatively, a fusible element may release spring pressure applying the brake to effect complete release thereof after slipping has taken place over a certain time. When the brake is applied by fluid pressure it may be released by a valve operated on angular movement of the brake ring members to release the said pressure and a further valve may be provided for manual release of pressure when required. To ensure equal loading on the planet gears the carrier 5 may be supported relative to the driving and driven shafts by yielding devices such as rubber or plastic elastic elements or corrugated spring strips or helical springs.
Patent GB-1013603-A (GB)
Title: Level-dyeing process
Inventor: LISTER GORDON HOBSEN
IPC: D06P3/24
Filed: 1962-06-08
Abstract: Synthetic polyamide fibres are dyed with water-soluble dyes at pH below 3 in presence of either a compound contacting at least one of each of a polyglycol ether radical, a basic nitrogen group and a C8-22 alkyl radical or a saturated or unsaturated alkyl polyglycol ether having 15-40 ethylene oxide groups.
Patent GB-1137983-A (GB)
Title: Improvements in or relating to the removal of chlorine from electrolytic cells
IPC: C01B7/00
Filed: 1966-05-19
Abstract: 1,137, 983. Electrolytic production of chlorine from molten salt baths. PHILBLACK Ltd. May 19, 1966 [June 1, 1965], No.22291/66. Addition to 1, 011, 818. Heading C7B. Chlorine which will cause no appreciable corrosion to iron or steel is obtained from a molten salt process in which a molten metal chloride salt is electrolyzed in a substantially airtight electrolysis zone maintained at a pressure not exceeding the existing atmospheric pressure and maintained at a temperature sufficient to maintain the salt in a molten state whereby gaseous chlorine is evolved, which gaseous chlorine is withdrawn from the electrolysis zone at the temperature of said zone, co-mingled with a second stream consisting of dry chlorine having a greater linear velocity and at least twice the mass of the evolved chlorine stream and having a sufficiently low temperature that the resultant co-mingled chlorine stream has a temperature of less than 300‹ F. The mass of the second chlorine stream is preferably at least five times that of the evolved chlorine, and the pressure in the electrolysis zone may be maintained so as not to exceed the existing atmospheric pressure by regulation of the mass and velocity of said second chlorine stream. Apparatus described is as in the parent Specification.
Patent GB-426174-A (GB)
Title: Improvements in knives for meat cutters
IPC: B02C18/36
Filed: 1934-07-31
Abstract: 426,174. Mincing-machines. LAEMMEL, C. A., 711, Caton Avenue, Brooklyn, New York, U.S.A. July 31, 1934, No. 22346. [Class 28 (ii)] In a mincing-machine the rotary cutting-member comprises a frame 31 having four radial arms 6 which are grooved at 11, 17 to receive a pair of knifemembers each consisting of two adjacent cutters 22, 23 joined by an undercut bridge 24. The knife-members are inserted in the recesses and stand up on edge, at right angles to the faces of the arms 6. In order that the cutters may accommodate themselves to irregularities in the perforated stationary cutter plate, the backs of the cutters are of convex form, the high points 26, 27 abutting against the bottom of the recesses, so that the pressure is applied midway along the cutters and the cutters may rock slightly about the pivot points 26, 27. Alternatively, the backs of the cutters may be straight, in which case the bottoms of the recesses are convex. In a modification, Fig. 7, the cutters are slotted at 31 and notched at 32 to increase their flexibility. In Fig. 8, the cutters 36 are arranged to project forwardly at an angle to the faces of the arms 6. The knife-members are frictionally retained in the frame 3<1> whilst the machine parts are being assembled. During operation the knife-members are retained in position by the cutter plate, no securing screws or lugs being necessary.
Patent GB-1212887-A (GB)
Title: Improvements in incinerators
Inventor: MUIRHEAD DUNCAN RONALD
IPC: F23G5/30
Filed: 1968-05-10
Abstract: 1,212,887. Refuse incinerators. POWERGAS CORP. Ltd. 9 May, 1969 [10 May, 1968 (2)], Nos. 22412/68 and 22424/68. Heading F4B. In an incinerator for town refuse the refuse to be burnt is separated from an outlet from the incinerator by a mass of refractory granular material which is periodically fluidized to allow non-combustible matter in the refuse to pass therethrough and to be removed via the outlet. In one embodiment, the incinerator 10 has a portion 13 containing pieces of metal or glass 20 supporting a bed 21, which is several feet thick, of sand, pulverized ash or alumina. The refuse enters via a shoot 24 containing a shredder 25, fuel being mixed with the initial load to ensure combustion. Air is supplied from a blower 23 and nozzles 22. To remove non-combustible matter air from a blower 19 is admitted through openings 18 to fluidize the bed when the non- combustible matter falls to the base of the container. Pressure or temperature sensitive sensors are fitted to the incinerator walls and if the level of the surface within the incinerator rises or falls beyond predetermined limits more refuse is admitted or a mechanical or hydraulic device 16 energized allowing a plate 15 to uncover an opening 14 in the base portion 13. In a second embodiment, the incinerator is horizontal and the material 20 is placed adjacent an outlet forming a dam. To remove non- combustible matter both the bed and the dam are fluidized and the material passing through the outlet falls onto a screen (47), the material 20 can then be re-admitted via the inlet.