baber/WOPTO huggingface dataset:
Patent GB-443892-A (GB)
Title: Method and apparatus for the hydrodynamic accumulation of energy and its utilisation
IPC: F16D33/06
Filed: 1934-07-09
Abstract: 443,892. Centrifugal pumps. FOTTINGER, H., 172, Berlinerstrasse, Charlottenburg, Berlin. July 9, 1934, No. 20162. Convention date, July 7, 1933. [Class 110 (i)] [See also Group XXIX] Liquid is whirled as a ring in a rotating drum 2 and periodically conducted away through, a scoop 6 to a working chamber 12. The liquid is supplied to the drum via a passage 4 and centrifugal pump 3. The design of the pump blades and guide vanes is such that the energy supplied to the fluid is the same as it has when rotating on a ring. The mechanism for inserting the scoop 6 into the liquid ring when liquid is required by the chamber 12, comprises a linkage 15, 14, 17, 8 which is actuated by a slide valve 11. The scoop is formed on a tapered diffuser and is provided with hydroplane like surfaces to prevent its being carried too far into the liquid ring. The formation of waves is prevented by perforated plates on the scoop and the drum. Air entrained with the liquid is removed by a centrifugal separator disposed between the scoop and the working chamber. Several drums may be disposed within one another and in such a case the fluid is led into the innermost drum in order to keep this constantly filled. To carry off a large quantity of liquid in a short time several scoops may be operated together. The drum is surrounded by a casing with a gutter for the leakage which is pumped away by blades on the drum exterior. These blades may also be used to pump liquid to the drum. The scoop is provided with hydroplane surfaces which exert a torque opposing the immersion of the scoop and the end of the scoop may be formed on a rotary valve. A piston vane on the side of the scoop enables it to be power actuated. In a modification the scoop is formed as a turbine, the liquid being conducted back to the ring by guide channels. The device may be used to fill a fluid gear either separate from or contained within the drum.
Patent GB-1014214-A (GB)
Title: Improvements in or relating to inflatable articles
Inventor: OLDHAM WALTER
IPC: B63C9/125
Filed: 1963-05-22
Abstract: 1,014,214. Lifejackets. FRANKENSTEIN GROUP Ltd. May 1, 1964 [May 22, 1963], No. 20292/63. Heading B7U. [Also in Division A3] An inflatable body attachment comprises a continuous inflation chamber surrounding an opening, its inner peripheral portion being perforated or of readily permeable material and covered by a gusset of air-impermeable material to form a simultaneously inflatable subsidiary chamber. As shown, panels B of a onepiece lifejacket are secured together at the neck aperture C by a gusset E which is either perforated or of air-permeable fabric and over which is secured an imperforate gusset F. When the jacket is uninflated the gusset F forms a stand-up collar and when the jacket is inflated it forms an air pocket G in communication with the main body of the jacket but inflated to a less rigid state. The pressure exerted by the jacket on the wearer's throat is thus reduced. The size of the neck aperture is such that the jacket cannot be forced over the wearer's head if he/she enters the water from a height.
Patent GB-837496-A (GB)
Title: Clamping device for structural members
Inventor: CODD DAVID THOMAS
IPC: F16B7/04
Filed: 1957-06-27
Abstract: 837,496. Joining structural members. LONGWORTH SCIENTIFIC INSTRUMENT CO. Ltd. June 13, 1958 [June 27, 1957], No. 20361/57. Class 20(2) [Also in Groups XIV and XXV] A device for clamping tubular structural members together comprises two flat circular members 5, 6, each of which has an offset bore 7 and semi-cylindrical clamping faces 13, 14 parallel to the flat faces of members 5, 6. The axes of the bores 7 are slightly inclined to the longitudinal axes of the members 5, 6 which are positioned so as to effect a bending tendency upon a member placed in the bores 7 when gripping is effected. Cylindrical members 28, 34, 34 are positioned in the bores 7 and between the clamping faces 13, 13 and 14, 14 resDectively, gripping being effected by a bolt 32 which passes through a hole 17 in member 5 and screw into a hole 25 of member 6. If required the member 28 can be additionally locked by a bolt which is passed through a hole 22 in the member 5 and a hole 30 in the member 28 and is screwed into a second hole 23 in the member 5. Similarly the members 34 may be locked by bolts passed through holes in the member 6. The clamping faces 13, 14 may be serrated and they may also taper inwardly towards the periphery of the members 5, 6.
Patent GB-1422199-A (GB)
Title: Device for and method of lifting loads step-by-step especially heavy loads
IPC: B66F7/16
Filed: 1973-04-30
Abstract: 1422199 Step-by-step lifting devices D V H JOHANSSON 30 April 1973 [4 May 1972] 20387/73 Heading B8J A device for lifting or lowering loads step-bystep has four similar upstanding U-beams 2 combined in pairs with cross-beams 8 which carry a load supporting beam 7. Each U-beam 2 has an hydraulic jack 1 co-operating with supporting plates 9, 10 which can be slid into opposed, horizontal grooves 6 in the flanges of the U -beam 2. The abutment surface of each groove 6 is inclined slightly downwards with respect to its opposed groove 6, the co-operating portions of the plates 9, 10 having a corresponding chamfer. The plate 9 is plain and is arranged to support the base portion of the jack 1 while the plate 10 has a cut-out so that it may be slipped around lifting section 4 of the jack 1 under the head thereof. In a method of lifting a load the device is used in the manner of a conventional step-by-step climbing jack, each jack 1 being received centrally within the confines of its associated U-beam 2. In a modification, Fig. 6 (not shown), the plates 9, 10 are provided with jaws (19), (20) to engage the grooves 6 and may be sprang-loaded or operated by a piston and cylinder arrangement. In this embodiment it is not necessary for the operator to remove and replace the plates 9, 10 as the load is moved step-by-step.
Patent GB-516874-A (GB)
Title: Improvements in or relating to the method of producing alkyl compounds of lead
IPC: C07F7/24
Filed: 1938-07-09
Abstract: 516,874. Lead alkyl compounds. ETHYL GASOLINE CORPORATION. July 9, 1938, No. 20395. Convention date, Feb. 16, 1938. [Class 2 (iii)] 'A mixture of lead alkyl compounds containing mixed alkyl lead compounds is prepared by causing a compound or a mixture of compounds containing at least two different alkyl radicals to react and interchange and redistribute the alkyl radicals, by the admixture of such compound or compounds in the presence of a catalyst selected from the group, aluminium chloride, diethyl zinc, zinc fluoride, mercuric chloride, boron trifluoride, dimethyl aluminium chloride, zirconium chloride, phosphorus trichloride, and ferric chloride. The reaction may be conducted in the absence of a solvent, but it is preferred that a solvent such as benzene, hexane, kerosene and decahydronaphthalene may be present. A raised temperature is preferred, such as 130‹C. or over. The addition of the catalyst is made last, and then'cautiously particularly in the absence of a solvent. The distribution of the alkyl radicals normally proceeds to a constant equilibrium dependant on the proportions of the particular ingredients in the starting materials, but the reaction may be stopped before equilibrium is reached if any particular distribution is desired. The reaction mixture may also be subjected to fractional distillation to eliminate any desired ingredient, and so adjust the ratio of any particular alkyl' radical present. In examples (1) 267 parts of tetramethyl lead, 323 parts of tetraalkyl lead, 200 parts of hexane are mixed, and 3 parts of anhydrous aluminium chloride added. The mixture is heated to 85‹C. for 2 hours to produce a mixture containing 5.5 per cent. tetramethyl lead, 24 per cent. trimethylethyl lead, 37.5 per cent. dimethyldiethyl lead, 26 per cent. methyltriethyl lead and 7 per cent. tetraethyl lead. (2) 590 Parts of dimethyldiethyl lead are dissolved in hexane, 3 parts of anhydrous aluminium chloride are added and the reaction mixture is heated to 85‹C. for two hours to give a mixture of approximately the same composition as that obtained in example (1).
Patent GB-1048884-A (GB)
Title: Improvements in lubricating greases
Inventor: BROWN ALEXANDER
IPC: C10M169/00
Filed: 1964-05-15
Abstract: A lubricating grease devoid of hydrocarbon oil comprises an aqueous solution of sodium and/or potassium silicate having a specific gravity of 1.2 to 1.7 and a thickening agent. The thickening agent may be organic, e.g. gum karaya, gum arabic or sodium alginate, or inorganic, e.g. bentonite, china clay, talc, calcium, magnesium or aluminium silicate, or sodium or potassium carbonate, or a mixture of any of these.  The composition may also contain graphite and/or molybdenum disulphide.ALSO:An aqueous solution of sodium or potassium silicate is thickened to the consistency of a grease with bentonite, china clay, talc, calcium, magnesium or aluminium silicate or sodium or potassium carbonate, gum karaya, gum arabic, sodium alginate or a mixture thereof.  The composition may also contain graphite and/or molybdenum disulphide.
Patent GB-1013828-A (GB)
Title: Process for the preparation of water-insoluble condensation products
IPC: C08G63/91
Filed: 1962-05-28
Abstract: Water-insoluble condensation products containing polysulphide bridges are prepared by reacting (a) a product prepared by reacting a novolac with epihalohydrin, a halogen carboxylic acid or formaldehyde and hydrogen halide with (b) a water-soluble inorganic thiosulphate to form a thiosulphate which is then treated with an alkaline condensing agent, if desired together with a reducing agent, e.g. an alkali metal sulphite or dithionate.  In a modification, intermediate (a) is the hydroxyl-free condensate of formaldehyde with an aromatic hydrocarbon (e.g. xylene or naphthalene) into which CH2X groups have been introduced by reaction with formaldehyde and hydrogen halide (HX).  Intermediates (a) contain 3-25 groups reacting with thiosulphate, e.g. -OCH2X, OCH2CH(OH)CH2X, OC(O)(CH2)nX, wherein X is a halogen atom and n an integer from 1 to 4.  Preferably alkali metal or ammonium thiosulphate is used.  Reaction between (a) and (b) may be in water, a water-miscible organic solvent or a mixture of solvents.  In examples:-(1) A novolac from phenol, p-cresol, p-hexylphenol and formaldehyde was reacted with epichlorhydrin, and the product, dissolved in methanol, was reacted with aqueous sodium thiosulphate, and heating with caustic soda and then with aqueous sodium carbonate yielded a hard, insoluble, transparent plastic.  (2) A novolac from p-cresol, 4,41-dihydroxydiphenyldimethyl methane, p-hexyl-phenol and formaldehyde was reacted with epihalohydrins and the product with sodium thiosulphate.  Heating the product with sodium carbonate or caustic soda yielded a hard, insoluble plastic. (3) A novolac from phenol, p-octadecyl-phenol and formaldehyde was reacted with epichlorhydrin and then with ammonium thiosulphate.  The product heated with sodium sulphide yielded a plastic kneadable mass. (4) A novolac from p-tert.-butylphenol, 2-naphthol and formaldehyde was reacted with epihalohydrins and thiosulphate, and converted to the product containing polysulphide bridges by boiling with morpholine. (5) A novolac was esterified with chloracetic acid and reacted with sodium thiosulphate. The "Bunto" polysalt was then treated with sodium sulphide solution. (6) A novolac was treated with paraformaldehyde and hydrogen chloride and the resulting oily resin treated with sodium thiosulphate.  The product treated with potassium hydrogen sulphide gave a hard, insoluble, synthetic resin. Specification 666,557 is referred to.
Patent GB-148524-A (GB)
Title: Improvements in electric conducting coils
IPC: H01F17/02
Filed: 1920-07-10
Abstract: 148,524. Ges. f³r drahtlose Telegraphie. March 4, 1918, [Convention date]. Inductances.-The turns of a coil are secured to the sides of flat supports of rectangular or triangular shape arranged at right-angles to the axis of the coil. As shown, the supports a have notched extensions b of triangular shape to separate turns between which a greater potential difference exists. The winding d starts from the inside notches c and passes outwards and then inwards. A number of such supports are secured in star-fashion on a tube i by means of a ring e, having radial slots f into which slots g on the supports pass. Specification 147,697 is referred to.
Patent GB-423086-A (GB)
Title: Improvements in or relating to the refining of chocolate masses and similar masses
IPC: A23G1/10
Filed: 1934-07-12
Abstract: 423,086. Chocolate. BECK, A., 1, Langer Stieg, Wernigerode, Saxony, Germany. July 12, 1934, No. 20500. [Class 129] [See also Group II] Chocolate masses and similar sweetmeat masses are refined by a worm conveyer 2 with small threads and ending in a cone 5 surrounded by a conical casing 4. After refining, the mass is fed to a drum 9 in which the mass forms a thin layer which is subjected to heat from a blower to extract water and then cooled to generate the aroma.
Patent GB-221497-A (GB)
Title: Improvements in or relating to planing, shaping, slotting and like machines
IPC: B23D13/00
Filed: 1924-09-01
Abstract: 221,497. Potier, A. Sept. 3, 1923, [Convention date]. Planing, shaping, and slotting.-A double-cutter tool-holder for a planing, shaping, slotting, &c. machine comprises a block e in which tools g<1>, g<2> are adjustably secured back to back by wedgeshaped nuts mounted on a screwed rod h. The block is fitted with a toothed sector q and is pivotally mounted in a slide c which may be elevated in the cross-slide a by a screw d. The tool-block is rocked at the end of each stroke, to bring the appropriate, tool into action, by a pinion p geared to the sector q and having its spindle linked to a rod u which slides through a stationary friction collet w the frictional resistance of which may be adjusted by a nut x<2> and spring y. The angular movement of the tool-block is regulated by screws l<1>, l, the latter of which coacts with a spring-pressed wedge member m.
Patent GB-1419733-A (GB)
Title: Benzamide derivative
IPC: C07C231/00
Filed: 1974-05-09
Abstract: 1419733 Benzamide derivatives SOC D'- ETUDES SCIENTIFIQUES ET INDUSTRIELLES DE L'ILE-DE-FRANCE 9 May 1974 [15 May 1973] 20598/74 Heading C2C N - (diethylaminoethyl) - 2 - methoxy - 4- amino - 5 - chlorobenzamide is prepared by reacting 2 - methoxy - 4 - amino - 5 - chlorobenzoic acid with diethylaminoethylamine in the presence of tetraethylpyrophosphite and optionally converted into salts thereof.
Patent GB-458603-A (GB)
Title: Improvements in luminous electric discharge lamps
IPC: H01J61/20
Filed: 1935-07-22
Abstract: 458,603. Glass m a n u f a c t u r e. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Patent Treuhand- Ges. f³r Elektrische Gl³hlampen; 11, Ehrenbergstrasse, Berlin) July 22, 1935, No. 20775. Addition to 432,614. [Class 56] [See also Group XL] To reduce blackening of the envelope of a high-pressure lamp, at least 0À2 per cent of caesium is added to the mercury filling and the envelope contains 10-20 per cent of boric acid, 25-35 per cent of alumina, 20-40 per cent of alkaline earths and 26-4 per cent of silica, the boric acid and silica together not exceeding 50 per cent. The alkaline earths may be calcium and barium oxides and may be partly replaced by magnesium and zinc oxides. A composition of SiO2, B2O3, Al2O3, CaO and BaO in the percentages of 35, 10, 30, 15 and 10 respectively is specified. The glass may form the inner envelope of the lamp or a flashing on the inside of a less resistant glass. Specification 426,129 is referred to.
Patent GB-282477-A (GB)
Title: Improvements in or relating to cable telegraphy and the like
IPC: H04L25/06
Filed: 1926-08-23
Abstract: 282,477. Smith, W. S., and McLachlan. N. W. Aug. 23, 1926. Eliminating effects of disturbing currents, - In order to neutralize the effect on a telegraph receiver of earth currents and other low - frequency disturbances, the disturbances but not the signals are enabled to apply a compensating voltage to the receiver. Low frequency disturbances passing from cable 1 to earth E through the resistance 2<1> cause plate current to flow in a compensating valve 5 and thus give rise to a difference of potential between the points 12 and 16 which neutralizes the effect on the receiving valve 11 of the potential drop in the resistance 2. For signal currents, on the other hand, the resistance 2<1> is short-circuited by the condenser 3 owing to their comparatively high frequency and the compensating valve 5 does not come into play. The system may be shunted by a shaping network comprising a resistance and an inductance, and the resistance 8 may be shunted by a condenser. The grid and plate of the valve 5 may be coupled by a transformer in such a way as to adjust for over-compensation.
Patent GB-946423-A (GB)
Title: Improvements in acoustic panels
IPC: E04B1/84
Filed: 1961-06-08
Abstract: 946,423. Laminates. H. A. GARROOD. June 1, 1962 [June 8, 1961], No. 20809/61. Drawings to Specification. Heading B5N. An acoustic panel of insulation board, having blind holes formed in the front surface, has the rear surface covered by foil which is adherent to the panel along an area forming a closed loop around the rear surface, e.g. the perimeter of the rear surface or the panel edge, but which is non-adherent over most of the rear surface. The foil may be of aluminium or a plastic such as P.V.C. and a pocket of air may be trapped in the non-adherent area to improve sound-absorbency.
Patent GB-944695-A (GB)
Title: Universal joints
IPC: F16D3/38
Filed: 1960-08-03
Abstract: 944,695. Universal joints. RUBBER PLASTICS Ltd., and B. R. KNOTT. July 7, 1961 [Aug. 3, 1960], No. 20820/63. Divided out of 942,321. Heading F2U. A Hooke's joint comprises shaft forks pivoted about mutually perpendicular axes of a connecting plate, the joint being given torsional flexibility by forming the connecting plate of resilient material or by providing bushes of resilient material between the forks and the connecting plate. As shown, the connecting plate 10 is made of polyurethane, and the forks 18 have inwardly directed pins mounted by way of needle bearings 12 in recesses 11 in the plate. Alternatively the plate may be rigid and resilient bushes may be inserted in the recesses 11. Needle bearings may be located within the bushes, or the bushes may include molybdenum disulphide for lubricating purposes.
Patent GB-1059500-A (GB)
Title: System for duplicating from electrostatically printed master
IPC: G03G15/14
Filed: 1964-05-20
Abstract: 1,059,500. Printing processes. OMNITRONICS Inc. May 20, 1964 [June 17, 1963], No. 20896/64. Headings B6C and B6F. In a method for reproducing in visual printed form a given information display represented by electrical signals the signals are changed in a stage 10, Fig. 1, such that when they are applied to a stage 11, in which the signals of the display are given visual printed form, the image appearing on an initially blank tape 9 is a mirror image of the display. Stage 11 may use known electrostatic printing equipment. In such a case the master tape 12 issuing therefrom is fed into a reproducer unit 30, Fig. 1, where it passes over a drum 50, Fig. 8, in contact with blank tape 31 which has been treated with a suitable solvent from a conditioning assembly 49. The solvent on the tape 31 causes the uppermost particles of the reversed image on the tape 12 to transfer such that on solvent evaporation the tape 31 bears the desired copy of the information display. Instead of applying a solvent the tape 31 may be forced against the master tape 12 and drum 50 by a spring-loaded roller 59. Again, instead of pressure or solvent, heat may be applied to aid transfer. Any combination of these three means may also be used. The process of the invention is intended to include the printing on any size of web and also on sheets.
Patent GB-390387-A (GB)
Title: Improvements in coin-freed vending machines
IPC: G07F11/16
Filed: 1932-07-25
Abstract: 390,387. Coin-freed article-delivery apparatus. HARPER, P. S., Adelaide House, Ashurst Walk, Croydon. July 25, 1932, No. 20948. [Class 27.] Articles stored in piles.-A magazine 2, Fig. 1, containing the articles is hinged near its top at 8 to a fixed frame plate 4 and is normally held by a spring 9 with its lower end abutting against an adjustable stop 16 on a lower frame plate 5. The column of articles 3 rests on the top of a pair of lugs 13 secured to the plate 5, the lugs being spaced apart narrower than the magazine 2 as shown in Fig. 2. The magazine carries at the bottom a platform or tongue 141 which can move between the lugs 13 and the top surface of which is below the level of the lugs. The magazine can be swung about its pivot 8, after insertion of a coin, by pulling a draw-rod 10 mounted on a spindle 11 at the bottom of the magazine. The column of articles moves off the lugs 13 and drops to the platform 14<1>, the top of the bottom article coming below retaining flanges 15 on the front of the magazine. When the rod 10 is released, the spring 9 returns the magazine, and the bottom article is pushed by the front 13a of the lugs 13 off the platform 14<1> to a delivery receptacle 14 accessible through an aperture 6 which is provided with a flap 7 as described in Specification 390,391.
Patent GB-170103-A (GB)
Title: Loose leaf binders
IPC: B42F13/00
Filed: 1920-07-12
Abstract: 170,103. Averill, W. H. July 12, 1920. Locking-followers; post files; locks and fastenings.-In loose-leaf binders of the type in which tubular telescopic post members carry a rack and a lever actuated by a controller bar to lock the members together, the lever is pivotally mounted in a bearing-member connected to one of the cover-plates and extends into the hollow posts, and the ratchet member is formed integral with the outer post. As shown in Figs. 6 and 7, overlapping angular cover-plates 11, 12 have hollow posts 15, 17 connected to them by lugs 19, the posts being of sheet metal and formed tubular by rolling. The outer and larger post 15 is attached to the cover-plate 12, and one of its edges is in the form of an integral serrated flange 21 which constitutes the rack and projects through a slot 17<a> in the smaller tubular post 17. The lever 23 is mounted in a U-shaped bearing-member 25, its toe end 27 engaging with the rack, while the other end projects into an oblique slot 28 in a controller bar 29. The controller bar is movable endwise by a finger-piece 30, Fig. 4, to disengage the lever from the rack, and has a resilient tongue 31 engaging a slot 32 in the cover-plate 11 to secure the elements in locked position. An ordinary bolt lock may be used for thus purpose. In a modification, shown in Figs. 10 and 11, the integral serrated flange forming the rack is male on the inner and smaller of the tubular posts.