baber/WOPTO huggingface dataset:
Patent GB-619400-A (GB)
Title: Improvements in or relating to methods of manufacturing strip-like glass
IPC: C03B17/06
Filed: 1946-12-06
Abstract: 619,400. Glass manufacture. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Dec. 6, 1946, No. 36172. Convention date, July 6, 1943. [Class 56] In apparatus for making glass strip by extrusion through a slot 10 in the bottom 4 of the furnace, a nozzle 8, 9 is formed at each end of the slot, the axes of the nozzles being in the direction of flow through the slot. The internal diameters of the nozzles are greater than the depth of the slot and the outlets of the nozzles are lower than the outlet of the slot, whereby the strip is formed with rod-like edges 15, 16 which lessen the tendency of the strip to contract. The nozzles are provided with axial slots 11, 12 facing the slot 10 but not extending for the whole height of the nozzles, the upper ends being blocked off by dams 13, 14 to cause the junctions of the rods and web of the strip to be sharply defined. The rods may be removed by passing the strip between pressure rollers which smash the rods but leave the web intact, or the strip may be broken into laminµ which may be separated from the smashed rods by putting the mixture in a flow of liquid so that the rods sink and the laminµ pass on.
Patent GB-1361986-A (GB)
Title: Cleaning arrangement in a break or open-end spinning machine
IPC: D01H4/36
Filed: 1971-08-02
Abstract: 1361986 Cleaning break spinners WILHELM STAHLECKER GmbH 2 Aug 1971 [31 July 1970] 36266/71 Headings DID D1F and D1N In an arrangement for cleaning fibre in a break spinning apparatus, Fig. 1, impurities in fibres fed by opener roller 5 via duct 6 to a spinning rotor, are thrown by centrifugal force into chamber 8 and through a grid of cleansing means 9 within the chamber. Means 9 comprises a unit formed by triangular-section bars, of varying thickness, attached to a rail supported on one wall of roller housing 7. Each bar may be supported in the opposite housing wall, and the unit may be held in position by a leaf spring or by snap fasteners. Alternatively, the unit may comprise a resilient plastics material and may be snap-fitted to the housing. In a second embodiment, Fig. 4, the bars are supported on member 30 pivoted at 35 to housing 25 and adjustably secured by member 36. Alternatively, the bars may be positioned by means of a support member slidably mounted on the housing. In a third embodiment, Fig. 7, bars 61 are mounted on member 63 pivoted about roller axle 64. In a fourth embodiment, Fig. 8, cleaning chamber 70 and axes ridged bars 71 mounted \on shafts 73, supported on the housing side wall. Rotation of the profiled shafts adjusts the distance of the bars from roller 68. Alternatively, the chamber may enclose one bar having three equi-spaced longitudinal ridges, and the bar may be rotated on a shaft, for example, by an air current. The bars may be replaced by perforated plates 93, Fig. 14, having projections 95 extending towards the roller. A plurality of cleaning chambers may connect with the opening chamber. Impurities may be sucked from the chambers.
Patent GB-1281109-A (GB)
Title: Grease compositions
IPC: C08L83/08
Filed: 1970-07-28
Abstract: 1281109 Polysiloxane/perfluoro polymer grease compositions U B BRAY and E L BRAY [trading as BRAY OIL CO] 28 July 1970 [26 Sept 1969] 36427/70 Heading C3T [Also in Division C5] A grease comprises a major proportion of a polysiloxane and as the only thickening agent a perfluoro polymer of particle size less than 30 microns in diameter. Greases described contain 73-78% of a polydimethylsiloxane of 245 cs./ 100‹ F., a polymethylchlorophenylsiloxane of 57 es./100‹ F. or hexa(2-ethylbutoxy)disiloxane (11À7 cs./100‹ F.), the remainder being polytetrafluoroethylene.
Patent GB-524501-A (GB)
Title: Improvements in and relating to systems employing d.c. saturated inductances
IPC: H03F9/02
Filed: 1938-12-14
Abstract: 524,501. Control system for consumption apparatus. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Dec. 14, 1938, No. 36460. Convention date, Dec. 14, 1937. [Class 38 (iv)] An A.C. supply between lines 31, 32 is controlled by saturable inductances 4, 5 to supply pulses of current to a lamp, not shown in Fig. 2, connected between lines 31, 33. When the circuit of the lamp is completed, current flows through the winding 45 and rectifier bridge 40. The D.C. output from the bridge is applied to windings 44, 42, the former saturates the inductance 4 so. that it passes a large alternating current, and the latter saturates the inductance 5. The increased alternating current through winding 55 is rectified and applied to a desaturating winding 52 on the inductance 4 so as to reduce the alternating current through the winding 45, and thus cause cyclic operation of the inductances 4, 5 and consequential flickering of the lamp. Biasing windings 46, 56 are fed from a constant source. The inductances are of the type described in Specification 499,960. The lamp may be used to signal the disagreement between a circuitbreaker and a remote control switch and an audible signal 7 may be energized by causing the rectified output from the winding 55 to saturate another inductance 6 which remains saturated until a desaturating 66 is energized by depression of a push-switch 68.
Patent GB-1429577-A (GB)
Title: Preparation of, 3,3,-thiobis-1-aza-2-methoxy-benzanthrone
IPC: C07D221/18
Filed: 1974-08-20
Abstract: 1429577 3,3<SP>1</SP> - Thiobis - [1 - aza - 2 - methoxybenzanthrone] MONTEDISON SpA 20 Aug 1974 [22 Aug 1973] 36492/74 Heading C2C 3,3<SP>1</SP> - Thiobis - [1 - aza - 2 - methoxybenzanthrone] is prepared by reacting 1-azo-2- methoxybenzanthrone with sulphur monochloride or sulphur dichloride in an inert organic solvent. Preferred solvents are chlorinated saturated aliphatic hydrocarbons, nitrobenzene or dimethyl formamide. The 1-aza-2- methoxybenzanthrone is prepared by reacting 1-aza-2-hydroxybenzanthrone with dimethylsulphate.
Patent GB-1349109-A (GB)
Title: Metering device for bulk materials
IPC: B65D90/66
Filed: 1972-08-04
Abstract: 1349109 Discharging bulk materials WIBAU WESTDEUTSCHE INDUSTRIEUND STRASSENBAU-MASCHINEN GmbH 4 Aug 1972 [16 Aug 1971] 36546/72 Heading B8S The discharge of bulk materials from a hopper is regulated by a slide member, the position of which is controlled by raok-and-pinion mechanism 2, 3. Pawls 7, 8 lock the pinion in position by engagement with ratchet teeth 5. Cam 11, rotated by hand wheel 13 disengages one or other pawl by movement in one or other direction through 90 degrees to permit movement of the pinion in one direction only. Movement of the cam through 180 degrees disengages both pawls, when the pinion is free to move in both directions. The pinion is moved by lever 6. The position of lever 6 serves as an indication of the position of the flow-regulating slide member, movement of the pinion through 360 degrees serving to move the slide member from fully open to fully closed position.
Patent GB-1363917-A (GB)
Title: Extensible boom for carrying and positioning or guiding a tool such as a rock breaking or mining tool
IPC: E21C37/24
Filed: 1971-08-04
Abstract: 1363917 Tool-carrying booms; mineral-mining machines DOBSON PARK INDUSTRIES Ltd 17 July 1972 [4 Aug 1971] 36622/71 Heading E1F . A tool-carrying boom comprises a non- rotatable but extensible member 11 rotatably supporting a member 12 carrying a mounting for a tool, e.g. a rock-breaking or mining tool, said tool operating on an axis I-I different to the axis of rotation II-II of the member 12 and being movable relative thereto. Preferably the member 11 is telescopically housed in a stationery outer member 10 and is axially movable thereof by a ram 19. The member 12 is rotated by a worm drive 15, 16 and splined shaft 17. The mounting 26 is so secured to the member 12 as to be pivotal about axes 37, 37a and the tool 40, which may be as described in the referred to Specification 1356022, can be moved along a guide 38 secured to the mounting. The boom may replace the boom of the machine of the referred to Specification 1334543.
Patent GB-1224688-A (GB)
Title: Preparation of benzyl alcohol derivatives
Inventor: SAARI WALFRED SPENCER
IPC: C07D203/08
Filed: 1969-07-21
Abstract: 1,224,688. Benzyl alcohol derivatives preparation. MERCK & CO. Inc. 21 July, 1969 [25 July, 1968], No. 36642/69. Heading C2C. Erythro-compounds of the general formula (R<SP>1</SP> = m- or p-halobenzyl) and their salts are prepared by hydrolysing a trans-compound of the formula optionally followed by salt formation and/or resolution. The starting materials are prepared as follows: and the preparation of 3-(m-chlorobenzyloxy)- benzaldehyde is described.
Patent GB-1203520-A (GB)
Title: Link members
IPC: F16B45/02
Filed: 1968-08-01
Abstract: 1,203,520. Hooks. A. PICCHETTO and C. TOSETTI [trading as PICCHETTO & CS.N.C.]. 1 Aug., 1968 [7 Aug., 1967], No. 36664/68. Heading E2A. A link member comprises a hook 1 having two free end portions and provided with a mousing piece 2 arranged to be secured between such end portions wherein the mousing piece is a rigid member pivotally mounted at one end portion on one end portion of the hook so as to be pivotable in a direction outwardly relative to the hook, the other end portion of the rigid member is arranged to engage the other end portion of the hook, there is provided locking means 11 arranged for cooperation with the other end portion of the rigid member and with the other end portion of the hook when such end portions are in engagement so as to prevent separation thereof, and there is provided holding means 8 for holding said locking means in such cooperation with said two other end portions.
Patent GB-412283-A (GB)
Title: Improvements relating to hammer picks
IPC: E21C37/24
Filed: 1932-12-28
Abstract: 412,283. Percussive tools. MINING ENGINEERING CO., Ltd., Meco Works, Worcester. Dec. 28, 1932, No. 36719. Convention date, Dec. 28, 1931. [Class 124.] The tool steel c is retained by a wedge cap i, which is secured to the front head of the drill by a spiral spring h which is screwed into grooves on both the drill and the cap. A flange i<1> on the cap engages a bush g. In a modification the bush is omitted.
Patent GB-1263646-A (GB)
Title: Improvements in or relating to valve stem seals
IPC: F01L3/08
Filed: 1970-07-30
Abstract: 1,263,646. Valve stem seals. DANA CORP. 30 July, 1970 [8 Sept., 1969], No. 37019/70. Heading F2B.  An elastomeric valve stem seal for sealing between the stem of a poppet valve and a valve guide in which the stem is mounted for axial reciprocating movement, comprises an annular skirt 12, Fig. 1, for sealingly engaging the valve guide, and an integral conical wall 16 terminating in an annular conical sealing lip 18, which, in use, forms a progressively increasing interference fit with the valve stem in an axial direction. The force exerted by the lip on the valve stem progressively increases and decreases from its major to its minor diameter, Fig. 4 (not shown). The lip is formed with a thread 22 in which oil is retained to lubricate the valve stem, or, is formed with a series of concentric, annular grooves, the lands of which act as oil scrapers. The included angle between the wall 16 and the axis of the seal is more than 45 degrees, e.g. 60 degrees, and the included angle between the lip and the axis is 5-30 degrees, e.g. 7 degrees. The combined total of these angles is preferably less than 90 degrees. The elastomeric material may be Bura-N or polyacrylic rubber.
Patent GB-1197797-A (GB)
Title: Electrochemical Cell.
Inventor: MARICLE DONALD LEONARD
IPC: H01M10/36
Filed: 1967-08-14
Abstract: 1,197,797. Reversible metal/SO 2  cells with organic electrolytes. AMERICAN CYANAMID CO. 14 Aug., 1967 [25 Oct., 1966], No. 37194/67. Addition to 1,100,163. Heading H1B.  The cells of the parent Specification 1,100,163 may be used as secondary cells. In the example, a cell uses a lithium anode, a carbon black cathode and an electrolyte of tetrabutylammonium perchlorate dissolved in acrylonitrile saturated with SO 2 .
Patent GB-1521115-A (GB)
Title: Reproducing optical recordings
IPC: G11B7/00
Filed: 1975-09-10
Abstract: 1521115 Dropout compensation PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 10 Sept 1975 [13 Sept 1974] 37230/75 Heading G5R [Also in Division H4] The read beam detector of an optical video disc playback apparatus gives a combined video output signal V comprising a first signal component consisting of a carrier wave modulated with luminance information and at least a second signal component consisting of a second carrier wave modulated with sound information, and the apparatus has a dropout detector 5 sensing dropouts in at least the first signal component, and a clamping circuit 8 receiving at least the second signal component at a signal input thereof and which transfers its signal input unmodified to its output in the absence of a dropout but responds to a control signal from the detector 5 when a dropout is sensed so that the circuit 8 clamps its information signal output at a fixed D.C. signal value (such as zero) corresponding to the average value of the signal applied to its information signal input. In a first embodiment, Fig. 1 (not shown), the whole of the reproduced combined video signal passes to the signal input of the clamping circuit 8 and the dropout detector 5 acts on the whole of the combined video signal or on the extracted first component thereof. In a second embodiment, a high pass filter 12 extracts the luminance signal Ey, a band pass filter 14 extracts a chrominance signal Ec, and a low pass filter 13 extracts a combination of a pilot signal Ep and a stereo pair of sound signals Eg 1 , Eg 2 . Luminance signal Ey passes to the dropout detector 5 controlling a switch 18 so that output 27 receives the undelayed FM demodulated luminance signal in the absence of a dropout, but if a dropout is sensed output 27 receives the previous horizontal line signal passed via singleline delay 15 and demodulator 16. The clamping circuit 8 operates on the combined signals Eg 1 , Eg 2  and Ep under the control of the output of detector 5 as shaped by circuit 20. The output of circuit 8 passes via filters 21, 22 and FM demodulator 25, 26 to give stereo sound signals at 28, 29, and the pilot signal Ep passes via filter 23 to be used for compensation of phase errors in the chrominance signal Ec in a circuit 24 which transposes the chrominance signal to the standard frequency band.
Patent GB-1362750-A (GB)
Title: Axial flow reversible turbine
IPC: F01D1/30
Filed: 1972-08-10
Abstract: 1362750 Reversible turbines GENERAL ELECTRIC CO 10 Aug 1972 [16 Dec 1971] 37274/72 Heading FIT The invention relates to a reversible axial flow turbine in which the turbine is provided with an outer set of rotor blades 9a for forward rotation and an inner set of blades 9b for reverse rotation. The engine shown comprises a compressor drive turbine 4 and a separate power turbine 5 mounted on a shaft 7, the power turbine comprising an outer set of blades 9a and an inner set of blades 9b, gas flow from the compressor drive turbine to the blades 9a, 9b being controlled by an outer set of inlet guide vanes 15 and an inner set of inlet guide vanes 16, the gas flow path being divided into outer and inner paths by means of partitions 21 and 19, the partition 19 being formed with partspherical surfaces 19a, 19b to permit angular movement of the guide vanes 15, 16. The outer guide vanes 15 comprise a stem 25 rotatable in sleeve 26 and operable by a lever 28 whereby the position of the vanes may be controlled; similarly the inner guide vanes 16 comprise a stem 27 which extends through the stem 25 of the outer guide vanes and is operable by a lever 29. The guide vanes 15 or 16 of the inoperative turbine are completely closed. A single exhaust duct 12 is provided downstream of the turbine and a series of members 13 are pivotally mounted at 35 at the inner wall of the exhaust duct being movable by actuators 37 and linkage 36 whereby the members 13 are movable between a first position as shown in Fig. 1 in which they block the outlet from the inner rotor blades 9b, and a second position as shown in Fig.2 in which they open the outlet from the rotor blades 9b. In the first position the blades 9a are operative and the turbine rotates in the forward or ahead direction, while in the second position the blades 9b are operative and the turbine rotates in the reverse or astern direction. The members 13 comprise a flow guiding surface 40 and a blocking surface 41 also a web portion 42, sealing portions 45, 46 extending from the surfaces 40, 41. The members 13 are moved downwardly into an annular recess 38 for reverse operation.
Patent GB-771436-A (GB)
Title: Improvements in or relating to devices for imparting to-and-fro motion
IPC: H02K33/04
Filed: 1955-12-29
Abstract: 771,436. Reciprocating electric motors. VOLLHARDT, H. Dec. 29, 1955, No. 37314/55. Class 35. Pressure on the linear bearings 15 of the linearly moving armature 8 of a reciprocating electric motor is relieved by attaching the top channel 20 to resilient clamping strips 22 which have a tendency to bow outwardly. The bearing channels 9, 10, 20, 21 may be lined with steel wires as shown or grooved strips.
Patent GB-971329-A (GB)
Title: Improvements in or relating to stoves suitable for use with a kerosene fuel
IPC: F23D3/00
Filed: 1963-09-23
Abstract: 971,329. Wick burners. WOO KAI LEA, and CHAN PAK CHUN. Sept. 23, 1963, No. 37342/63. Heading F4T. A stove comprises a wick holder 17 slidably mounted in a casing 18 removably mounted on a kerosene container (not shown), a spindle 36 rotatably mounted in the casing 18 and carrying a pinion 35 engaging a rack 7 secured to the wick holder 17 and means for raising and lowering a combustion chamber disposed in a casing 30. The wick holder 17 comprises a base-plate 19 and two upstanding semicircular channels in which wicks are held by resilient tongues. The casing 18 contains two semicircular guides 25, 26 for the wick channels and has four indentations adapted to engage over pips on a rim surrounding an opening in the kerosene container. The combustion chamber is annular and is formed by two foraminated cylinders secured in the casing 30 by transverse pins. The means for raising the combustion chamber comprises a slotted arm 44 engaging a cross-bar 42 on a U-shaped member 41 slidably mounted in the wick holder and having a cap 47 bearing against a foraminated disc extending across the inner cylinder of the combustion chamber. The slotted arm is fixed to a sleeve 45 rotatably mounted on the spindle 36 and having a short operating lever 46. The kerosene container is removably mounted in an aperture in a bottom plate of a frame having four legs and a top plate having a rectangular aperture for a removable grid.
Patent GB-317701-A (GB)
Title: Improved paraffin oil gas stove burner
IPC: F23D11/44
Filed: 1928-12-18
Abstract: 317,701. Cutts, J. P. Dec. 18, 1928. Vaporizing - apparatus. - In a vapour burner for paraffin oil stoves, the vaporizer h e a d which is formed with crossing passages in the " Roarer " type and as a circular ring in the " Silent " type of stove, is connected by two vertical tubes D to a horizontal drilled bar B carry- C is Provided at ing the flame nipple and a cap C is provide at the end of the bar to facilitate removal of carbon deposit. Screw plugs or caps E may also be provided below the vertical pipes D which are then made with their lower parts curving slightly outwards to allow the insertion of a cleaning rod past the spirit bowl F. Asbestos washers are interposed between the caps C, E and their seatings.
Patent GB-782660-A (GB)
Title: Improvements in electric time switches
Inventor: HORSTMANN BEVAN GRAHAM
IPC: G04F3/06
Filed: 1954-12-24
Abstract: 782,660. Time switches. HORSTMANN GEAR CO., Ltd. Dec. 28,1955 [Dec. 24, 1954 No. 37372/54. Drawings to Specification. Class 38 (5). The subject-matter of this Specification is identical with that described in Specification 782,659, but the claims differ. Specification 782,661 also is referred to.
Patent GB-779002-A (GB)
Title: Steroid compounds
IPC: C07J75/00
Filed: 1954-05-11
Abstract: The invention comprises a 3-amino-11,21-dihydroxy-3,5,17(20)-pregnatriene represented by the formula <FORM:0779002/IV(b)/1> wherein R3 is an alkylene group containing less than nine carbon atoms which, together with the nitrogen atom, forms a ring which contains five or six members and a process which comprises reducing a 3-amino-11-oxygenated-3,5, 17(20) - pregnatriene - 21 - oic acid alkyl ester wherein the amino group is represented by the formula R3N-with lithium aluminium hydride in an organic solvent, decomposing any excess lithium aluminium hydride and organo-metal complexes, and hydrolysing the thus-produced 3 - amino - 11,21 - dihydroxy - 3,5,17(20) - pregnatriene with aqueous solution to produce an 11,21 - dihydroxy - 4,17(20) - pregnadiene-3-one.  The hydrolysis of the 3-amino group to a 3-keto group may be effected in neutral, acidic or alkaline aqueous solution.  The 17-hydroxy group may be introduced into the final product by treating the 11,21-dihydroxy-4,17(20)-pregnadiene-3-one with osmium tetroxide to form a 17,20-osmate ester which is subsequently treated with for example chloric acid, perchloric acid, hydrogen peroxide, perbenzoic or peracetic acid.  As starting materials there may be used the methyl and ethyl esters of 3-pyrrolidyl-11-keto-, 11a -hydroxy- or 11b -hydroxy-3,5,17(20)-pregnatriene-21-oic acid. Examples describe the preparation of 3 - pyrrolidyl - 11b ,21 - di - hydroxy - 3,5,17(20 - pregnatriene and compounds in which the 3-amino group is piperidyl, pyrrolidyl and C-alkyl substituted derivatives thereof, i.e. 21-methyl-piperidyl, 31-ethyl-piperidyl 21 - methyl - pyrrolidyl and 31 - isopropyl - pyrrolidyl, and of 11b ,21-dihydroxy-4,17(20)-pregnadiene-3-one, and 11b ,17a ,21-trihydroxy-4-pregnene-3,20-dione.