baber/WOPTO huggingface dataset:
Patent GB-431651-A (GB)
Title: Improvements in or relating to electric discharge devices
IPC: H01J61/34
Filed: 1934-01-12
Abstract: 431,651. Glass manufacture. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, FRANCIS, V. J., and RYDE, J. W., c/o General Electric Co., Wembley, Middlesex. Jan. 12, 1934, Nos. 1221 and 7594. [Class 56] [See also Group XL] In a high pressure metal vapour lamp having a double walled envelope, blackening of the walls of the inner discharge tube is prevented by providing a gaseous or vapour filling in the space between the walls. The glass which may be used for the tube has the following composition : SiO2 54 parts ; CaO 15; B2O3 8; Al2O3 21 ; Na2O 1 ; BaO 0À5.
Patent GB-861077-A (GB)
Title: Methods and apparatus for assembling rubber bush units
Inventor: CAUNT ALAN
IPC: F16F15/126
Filed: 1959-01-13
Abstract: 861,077. Assembling rubber bushes. METALASTIK Ltd. Nov. 30, 1959 [Jan. 13, 1959], No. 1296/59. Class 108(3). A method of assembling a unit, such as a torsional vibration damper, having inner and outer rigid members 5, 6 and a bush 7 of rubber or like material held in radial compression therebetween comprises forcing the bush axially into the space between the members and against a rigid member 9 so that it is compressed volumetrically. The bush 7 is initially introduced into the space between ring members 11 and 12 for engagement by a plunger 13 which is moved downwards to force the bush into the space between the members 5, 6. Rotation or oscillation about or along the axis of the bush may be imparted to one or both members 5, 6 at the same time as, or after, the bush has been forced between them. Alternatively, oscillatory and axial movement may be imparted to the members and the bush, respectively, in alternate stages. The bush may be formed from a strip of rubber with its ends abutting or spaced apart by a small amount. A similar method may be used to fit an inertia ring to a pulley, a removable split plate resting on the pulley flange forming an abutment for the bush at one side of the annular opening between the ring and the pulley.
Patent GB-1195752-A (GB)
Title: Xanthene and Thioxanthene Derivatives
IPC: C07D311/82
Filed: 1968-01-09
Abstract: 1,195,752. Thiaxanthene and xanthene derivatives. STERLING DRUG Inc. 9 Jan., 1968 [10 Feb., 1967], No. 1338/68. Addition to 1337/68. Heading C2C. Novel compounds I (including acid addition and quaternary ammonium salts) wherein N=B is a tertiary amino group (includes heterocyclic groups), Y is an alkylene bridge having its connecting valencies on different carbon atoms, Q is = O, R is hydrogen, alkyl, phenyl or phenylalkyl, X is O, S or SO 2  and if desired the heterocyclic nucleus shown in Formula I and any phenyl radical may carry substituents, e.g. alkyl, alkoxy, alkylthio, alkylsulphinyl, alkylsulphonyl, -CF 3  and halogen (the compounds claimed in Specification 1,192,651 are excluded from the foregoing definitions) are obtained: (a) by reacting a corresponding hydroxy-9-xanthenone or -thioxanthenone (embraces the SO 2  compounds) in the form of its sodium salt with a tertiary-amino-alkyl halide or by reacting a corresponding hydroxy-9-xanthenone or -thioxanthenone with a bromo-alkyl chloride, Br.Y.Cl and reacting the compound obtained with a secondary amine HN = B to give a product of Formula I in which Q is =O; (b) the foregoing product reacted with a metal hydride affords compounds of Formula I wherein Q is (R is hydrogen) or reaction with R.Mg.halide or R.Li (wherein R is alkyl, phenyl or phenylalkyl) and subsequent hydrolysis gives compounds wherein Q is (R is other than hydrogen); (c) treatment of a compound obtained under heading (b) wherein R is benzyl with a strong acid yields compounds of Formula I wherein Q is PhCH =; (d) hydrogenation of the last-mentioned compounds or reaction of a hydroxy-9-benzyl-xanthene or -thioxanthene with a tertiary-amino-alkyl halide in the presence of a strong base affords compounds wherein Q is 3 - (4 - Chlorobutoxy) - 9 - thiaxanthenone is prepared by the interaction of 3-hydroxy-9- thiaxanthenone and 4-bromobutyl chloride. 3- Hydroxy - 9 - thiaxanthenone - 10,10 - dioxide and 4 - hydroxy - 1 - methyl - 9 - thiaxanthenone- 10,10-dioxide are obtained by treating the corresponding thiaxanthenones with hydrogen peroxide and acetic acid. 3-Methoxy-9-benzyl 9-thiaxanthenol, obtained by the interaction of 3 - methoxy - 9 - thiaxanthenone and benzylmagnesium chloride, is converted to 3-hydroxy- 9-benzylthiaxanthene utilizing red phosphorus and hydriodic acid. 3-Hydroxy-9-thiaxanthenone is prepared by reacting o-mercaptobenzoic acid with m-iodoamisole, involving a cyclization to 3 - methoxy - 9 - thiaxanthenone, followed by demethylation with aluminium chloride. 2- Hydroxy-9-thiaxanthenone is obtained by condensing o-mercaptobenzoic acid and phenol in the presence of sulphuric acid. Pharmaceutical preparations suitable for the potentiation of hexobarbital hypnosis and showing antihypertensive, coronary dilator, anticoagulant, enzyme and metabolite inhibiting, anticonvulsant and CNS depressant and antiinflammatory activities contain as active ingredient compounds I; administration is orally or parenterally.
Patent GB-763358-A (GB)
Title: Improvements in or relating to filling means for tanks and the like
Inventor: FRASER JOHN
IPC: G05D9/02
Filed: 1954-01-18
Abstract: 763,358. Filling tanks. AVERY-HARDOLL, Ltd. Jan. 13,1955 [Jan. 18, 1954], No. 1479/54. Class 21. The invention relates to a tank for use with filling nozzles that automatically stop the supply when the rising liquid level covers one or more orifices in said nozzle. The tank 10 has a vertical and permanently, attached tubular member 15, threaded in a ring 14, to accommodate the supply nozzle 24, 25. Openings 18 in the tube 15 permit the rising liquid level to act on the orifices 29 and 30 in the nozzle that are coupled to the automatic control means. The desired liquid level is set by vertical adjustment of the tube 15. A tube 23 extending to the bottom of the tank is a sliding fit in the end of the tube 15 and carries an inner packing ring 22 for embracing the nozzle 25. The tube 15 has an upper abutment surface 27 and carries a lock nut 17. Specification 698,644 [Group XXIX], is referred to.
Patent GB-554003-A (GB)
Title: Improved pulse generating circuit
IPC: H03K3/12
Filed: 1942-02-05
Abstract: 554,003. Valve relay circuits. REYNER, J. H., and MILSOM, F. R. Feb. 5, 1942, No. 1512. [Class 40 (v)] An electronic relay system of the kind comprising a pair of reciprocally-coupled valves is so arranged that it has two stable states in both of which the product of the gains of the valves is less than unity, a change over being effected by an external impulse applied symmetrically to both valves, which momentarily causes instability by raising the product of the gains to greater than unity. The system may operate as a generator of square-topped waves, or may be used in counting apparatus operating on the scale of two. The circuit shown comprises valves V1, V2 with anode Resistances R1, R2 and with cathodes biased positively by a potentiometer R3, R4 connected across the HT supply 1, 2. Potentiometers are also connected between each anode and the terminal 2, intermediate points on which are connected reciprocally to the opposite grids. If the system is initially in the stable state in which valve V1 is passing current and valve V2 blocked application of a positive pulse at 4 to both grids causes momentary instability, and the system changes over substantially instantaneously to the other stable state in which V2 passes current and V1 is blocked. The next impulse restores the original condition. The switching impulses may alternatively be applied to the common HT supply.
Patent GB-1044051-A (GB)
Title: Improvements in or relating to electrically heated towel rails
IPC: A47K10/06
Filed: 1964-01-14
Abstract: 1,044,051. Electrically-heated towel rails. A. BIKKER. Jan. 13, 1965 [Jan. 14, 1964], No. 1534/64. Heading H5H. An electrically heated towel rail comprises a tubular sheath of plastics material containing a heating element of tape woven from glass fibre and resistance wire. Fig. 1 shows a construction in which the ends of U-shaped polypropylene tubes 10 are fusion welded to T-pieces of similar material whose third limb is attached to mounting plates 16. One such limb contains a terminal block, Fig. 2 (not shown), connecting the heater element to the mains supply.
Patent GB-779678-A (GB)
Title: A device for therapeutic radiation treatment
IPC: A61N5/06
Filed: 1955-01-19
Abstract: 779,678. Radiation therapy apparatus. MORGAN, J. A. Jan. 19, 1956 [Jan. 19, 1955], No. 1608/55. Class 81(2) Portable apparatus for treating patients with ultra-violet rays or radiant heat comprises a platform 1, Figs. 1, 2, on which the patient stands and which is rotated through reduction gearing from an electric motor housed in a box 4, and horizontal arms 9, 10 supporting a discharge tube 16 disposed at the focus of a reflector 12. If desired, two discharge tubes arranged side by side are employed, one emitting ultra-violet rays and the other radiant heat. The switch-gear for the tubes and the control of the platform motor may be operated by coin-freed mechanism.
Patent GB-158458-A (GB)
Title: Improvements in and relating to electric discharge devices
IPC: H01J17/52
Filed: 1920-01-19
Abstract: 158,458. British Thomson - Houston Co., Ltd., (General Electric Co.). Jan. 19, 1920. Vacuum tubes. - A rectifier or highfrequency generator has an incandescent tungsten cathode 6 and an anode 5 in an envelope with a filling consisting substantially of helium. A small amount of another gas, such as hydrogen, may be mixed with t h e helium. The cathode terminates in an arcing-tip 7. The pressure of the helium may vary from a few millimeters of mercury to above an atmosphere, but is preferably about two thirds of an atmosphere. When used as a generator, a continuous-current generator 14, a resistance 17, and inductances 15, 16 are connected between the anode and cathode, and in parallel with this circuit, a variable reactance 20, a variable condenser 19, and the primary winding of a transformer 21 are connected.
Patent GB-1035662-A (GB)
Title: Machine tool having a rectilinearly reciprocated table
IPC: B23Q1/26
Filed: 1963-01-14
Abstract: 1,035,662. Machine tool details; grinding. WERKZEUGMASCHINENFABRIK ADOLF WALDRICH COBURG. Jan. 14, 1963 [Jan. 12, 1962], No. 1686/63. Headings B3B and B3D. [Also in Division F2] In a machine tool having a reciprocable table guided on machine bed by two spaced-apart V-shaped guide-members received by two spaced-apart V-shaped guide-grooves, one of the guide-members, or one of the guide-grooves, is displaceable transversely by self-adjustment to allow for heat variations in the machine bed and table, but is restricted axially. In an embodiment, a machine bed 1, Fig. 1 (not shown), has integral V-grooves 5, 6 therein and a table 2 has an integral guide-member 3 and a displaceable guide member 4. The latter has keys 7 which are slidably received in grooves 8 of the table 2, the length of the grooves 8 being greater than the length of the keys 7. In another embodiment, the displaceable guide member 4, Fig. 2 (not shown), having holes 17 therein, is connected to the table 2 by bolts 16, the diameters of which are much smaller than diameters of the holes 17. In a further embodiment, a displaceable guide-member 11, Fig 3 (not shown) is allowed to " float " on a flat surface of a machine bed 12 In yet another embodiment, a displaceable guide-groove member 18, Fig. 4 (not shown), having holes therein, is attached to a machine bed 20 by bolts, the diameter of which are much smaller than the diameters of the holes. To facilitate machining of the displaceable member, the latter is locked in position on the machine bed or table by bolts.
Patent GB-1593231-A (GB)
Title: Vincristine derivatives
IPC: A61K31/47
Filed: 1978-01-16
Abstract: Dimeric indolodihydroindoles have the following formula <IMAGE>  In this formula:     R<1> denotes the group OH or <IMAGE>, R<2> denotes the group CHO or, if R<1> denotes the group OH, the group CH3, one of the radicals R<3> and R<4> denotes hydrogen and the other of these radicals denotes the group C2H5 and   R<5> denotes hydrogen. As active compound, antitumour medicaments contain a compound of the formula I or a pharmaceutically acceptable salt thereof. Two processes for the preparation of the novel compounds are described.
Patent GB-327481-A (GB)
Title: Improvements in the dehydration of solid substances
IPC: C01B33/113
Filed: 1929-01-17
Abstract: 327,481. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges., and Biltz, W.). Jan. 17, 1929. Right to Patent relinquished. Absorbing moisture by bibulous materials; drying by displacement of water by other fluids.-Solid substances having a content of water such as metal oxides, silica, or other hydrogels or hydrates are dehydrated by treatment with liquid ammonia. Moist silica hydrogel may be treated first with gaseous ammonia to saturate the contained water which is withdrawn by suction, and then with liquid ammonia. The dehydration of moist solid substances by replacement of the water by liquids of greater volatility such as acetone and alcohol is referred to.
Patent GB-273240-A (GB)
Title: Improvements in electric condensers
IPC: H01G4/32
Filed: 1927-01-20
Abstract: 273,240. Dubilier Condenser Co. (1925), Ltd., (Assignees of Dubilier, W.). June 24, 1926, [Convention date]. Condensers.-A unit comprises a flexible strip 1 of insulating material, for example a film of substance similar to that used for motion pictures, and metal layers 2, 3 on opposite faces thereof. Such a unit could not be formed into a roll condenser without employing an extra insulating strip, a construction which adds to the expense when two or more superposed units are employed. By dispensing with insulation, Fig. 6, two adjacent layers 2 will be in contact and when rolled up, the outer layers 3 will also be in contact with one another and insulated from the layers 2. In Fig. 7 is shown a condenser of more than two superposed units about to be rolled, wherein one terminal is connected to the outer layer 3 and the other to the layers 2 nearest the centre of the roll to connect the units in series.
Patent GB-398862-A (GB)
Title: Improvements in cartons or containers of paper and the like
IPC: B65D5/12
Filed: 1932-03-24
Abstract: 398,862. Cartons &c. PALMER, H. W. S., Villa Amalia, Pinewood Road, Branksome Park, Bournemouth, Hampshire. March 24, 1932, No. 1736. [Classes 18 and 66.] In an all paper &c. carton &c. provided with a double flanged end cap 4a between the flanges of which the end of the body 1 is seated, the body is of angular, preferably triangular, cross section and is made from a paper blank folded along straight lines with the opposing ends of the blank overlapped and secured together by adhesive. The carton is of prismatic or truncated pyramidal shape. The members 4a which are, in general, similar for both ends of the carton are secured by waxing or by adhesive, and they may be strengthened by pressing ribs 6 therein or by binding the edges with metal. If the top cap 4a has been previously waxed, it is secured in position by forming the ribs 6 with a hot tool. For removing the contents the top cap can be taken off; or a triangular pouring opening can be cut at the top of one of the angular edges of the carton ; or, for granular material, a hole with a sliding closure is provided in the top cap. Specification 120,878, [Class 18, Boxes &c.], is referred to.
Patent GB-678273-A (GB)
Title: Computer for integrating tristimulus values
IPC: G01J3/46
Filed: 1949-01-21
Abstract: 678,273. Comparing colours. GENERAL ANILINE & FILM CORPORATION. Jan. 21, 1949 [Feb. 5, 1948], No. 1778/49. Class 97 (i). - [Also in Groups XIX and XL (b)] The tristimulus colour values of a specimen are determined, as a radiant-energy distribution curve therefor is produced by a recording spectrophotometer, by means comprising a first integrator, for integrating the energy distribution curve as it is produced, the output of which forms one input of each of three terminal integrators, the other inputs of which are derived from cams representing respectively the functions Ex, Ey, and Ez of the illuminant, where the function E represents the distribution of radiant energy and x, y and z are the tristimulus functions of the equal energy spectrum. The terminal integrators operate counters which, at the end of the operation, register the three tristimulus values. A motor 11 of a known form of recording spectrophotometer rotates a drum 10 carrying a recording surface and a motor 16 controls the position of a pen or stylus 14 axially of the drum in accordance with the radiant energy transmitted or reflected by a specimen as the wavelength of light received by the specimen is varied. These motors 11, 16 are coupled, either directly or by Selsynservomotor combinations 22, 24 and 19, 21, to shafts 25 and 51. The shaft 51 is arranged to move the balls of a ball integrator 49 radially of its disc 48 which is geared to the shaft 25. In this way the curve drawn on the drum 10 is simultaneously integrated. The shaft 25 is also geared to three cams 39-41 representing the functions Ex, Ey and Ez. Followers 73-75 of these cams position the. balls of three further ball integrators 61-63, the discs of which are rotated, by a shaft 57, in accordance with the output of the integrator 49. The outputs of these integrators are coupled respectively to counters 93, 96 and 97 on which the tristimulus values for the specimen, in the illuminant represented by the cams 39-41, are registered at the end of the operation. A calibrated disc 35, geared to the cams 39-41, in co-operation with a pointer, indicates the wavelength at which the cams are positioned and enables them to be set initially. The tristimulus valves of an illuminant may be found by examining the illuminant directly with the spectrophotometer and replacing cams 39-41 by similar cams formed according to the functions x, y and z. The cam followers 73-75 may be held against their respective cams by springs, but preferably each is urged against its cam by a motor 89 controlled by an electronic circuit so that when contact is made or broken, the motor is reversed. The cams may be replaced by drums on which corresponding curves are mounted and followed by a photo-electric curve-follower mechanism (see Group XL (b).
Patent GB-433613-A (GB)
Title: Improvements in or relating to shaker conveyors or the like
IPC: B65G27/00
Filed: 1934-01-18
Abstract: 433,613. Jigging conveyers. BERRISFORD, W. H., Highfields, Sandon Road, Longton, Stoke-on-Trent. Jan. 18, 1934, No. 1844. [Class 78 (i)] [See also Group II] In a jigging con veyer, jigging screer or vibrating separator of the kind supported by a rolling contact, a projection or step on one or more of the rolling contact surfaces causes the con. veyer &c. at some part of its course abruptly to depart from the path determined by the rolling contact. In one construction either each roller 5, Fig. 1, is made with a projection 10, or two projections 11 are provided on the flat surface 2 of the casting 1 attached to the conveyer &c. Teeth 8 on the roller engage notches 9 in the castings 1, 3. In a modification the projection on one surface co-operates with a depression on the companion surface. In another construction, the castings have concave surfaces 13, 16, Fig. 2, bearing on the roller 12 and are provided with projections 18. Springs 17 keep the parts in contact. Specification 421,553, [Group II], is referred to.
Patent GB-452285-A (GB)
Title: Improvements in or relating to the manufacture of cyanhydrins
Filed: 1935-01-19
Abstract: Ketone cyanhydrins of the aliphatic series are manufactured by adding to liquid hydrocyanic acid, maintained at boiling point and containing a base dissolved therein, an equimolecular proportion of an aliphatic ketone.  Suitable bases are: alcoholic or aqueous caustic soda, gaseous or aqueous ammonia, pyridine, piperidine, dipiperidyls, e.g. 4 : 4<1>-dipiperidyl, quinoline, primary, secondary or tertiary amines, potassium or sodium cyanide.  The cyanhydrins may be recovered as described in the parent Specification, and may be converted into unsaturated nitriles of homologues of acrylic acid as described therein.  In an example, acetone is added to a boiling solution of pyridine in liquid hydrocyanic acid and the acetone cyanhydrin isolated by acidifying with a slight excess of sulphuric acid and distilling in vacuo. Alternatively, the reaction mixture is cooled and worked up for the production of methacrylonitrile by the addition of pyridine followed by gradual addition of phosphorus pentoxide and then of more pyridine, or by the addition first of the phosphorus pentoxide and then of the pyridine.
Patent GB-696240-A (GB)
Title: Improvements in or relating to float operated electric switches
Inventor: CURREY IDRIS ASHTON
IPC: H01H35/18
Filed: 1951-01-24
Abstract: 696,240. Actuation of switches. WEIR ELECTRICAL INSTRUMENT CO., Ltd. Nov. 29, 1951 [Jan. 24, 1951], No. 1871/51. Class 38 (v) A float-operated switch particularly for use in oilcooled transformers, has a cylindrical glass float 15 secured to a pivoted member 14, to which is secured a lever 21 carrying a mercury switch 27. The float may be of heatresisting glass and may have a circumferential groove, or, as shown, countersunk portions 16 to locate a split spring metal securing band 17. The pivoted member 14 may be eccentrically pivoted at 13 so as to provide a counterbalancing effect for the float. The lever 21 has a cut-away portion providing shoulders 24, 25, which cooperate with a hexagonal cross bar 11 to limit the movement of the float.
Patent GB-1376471-A (GB)
Title: Cryosurgical instruments and methods
IPC: A61B18/02
Filed: 1972-01-14
Abstract: 1376471 Cryosurgical instruments BRYMILL CORP 14 Jan 1972 1926/72 Heading A5R [Also in Division F1] A cryosurgical instrument comprises a reservoir 22 for a liquified cryogenic cooling gas, such as liquid nitrogen, having a boiling point at atmospheric pressure of less than -100‹C, boiling of the liquid in the reservoir forcing liquid up a pipe 26 and via a fitting 110 to a nozzle from which a uniform steady spray is discharged for application to tissue to be necrotized, the spray being in substantially atomised liquid form with no splashing. For liquid nitrogen the internal diameter d in mils. of the nozzle is preferably related to the pressure p in p.s.i.g. at which the liquid is delivered to the nozzle by the equation:- where P is a constant of from 3 to 8; p is preferably 1 to 30 p.s.i.g. and d 50 to 8 mils. The delivery pressure is controlled by means of a closure member 48, urged by a spring 56 to a position at which it does not obstruct venting of reservoir 22 via passages 40 and 62, and movable by the instrument user to obstruct such venting. The region to which the atomised liquid spray is applied may be vented by a tube 100 and a passage 104 in handle assembly 42, the tube 100 being spaced from a part 32 of tube 26 by a helical thread or filament of a poor heat conductor. Exposed parts of the instrument may be coated with a fluorocarbon to prevent sticking.
Patent GB-137618-A (GB)
Title: Improvements in pumps
IPC: F16N13/08
Filed: 1919-01-27
Abstract: 137,618. Williams, H. Jan. 27, 1919. Indicating action of; pumps combined with auxiliary pumps; valves at distance from pump. -A lubricating-pump comprises a mechanicallyoperated pump in combination with a hand-pump, the two pumps having suction and delivery valves in common. In one form, the hand-pump is immersed in the oil reservoir b, and its piston c has a cup-leather which acts as a suction valve during the down-stroke. On the up-stroke, the oil is forced through a valve f into a sight chamber h, from which it flows to the delivery pipe i. The barrel of the mechanically-actuated pump is connected by a pipe j to the barrel of the pump a, and draws oil past the cup-leather c and delivers it past the valve f to the chamber h and pipe i.