baber/WOPTO huggingface dataset:
Patent GB-769763-A (GB)
Title: Improvements in or relating to gear pumps
IPC: F04C15/00
Filed: 1955-05-18
Abstract: 769,763. Gear pumps. AIR-EQUIPEMENT. May 18, 1955 [May 20, 1954; Feb. 8, 1955], No. 14331/55. Class 110 (2). The gears 101, 102, Fig. 2, of a gear pump are driven by a splined shaft 103, 104 and disposed between flexible gaskets 114, 115 which have orifices 119 formed opposite each of the cylindrical cavities 116, 117 in the covers 106, 107, gaskets 118 being provided as shown. When the pump is operating the cavities 116, 117 are fed with fluid at a pressure slightly higher than the average pressure in the adjacent space between two successive teeth. The inlet and outlet conduits are formed in the cover 106 and the oil leaking from the needle roller bearings 109, 110 is fed to a space 123 behind the gasket 115. In a modification, Fig. 4, sealing is effected by slidably mounted bearings 124 housing pistons 127 which abut the pump cover, each bearing being provided with a cavity 126 in communication with the fluid being pumped. In a second modification, Figs. 6, 7 and 11, channels 27, 27<SP>1</SP>, 27<SP>2</SP>, 27<SP>3</SP> are provided in the plate 22 so as to obtain back pressures which progressively fall from the discharge pressure in the case of channel 27 down to the suction pressure in the channel 273. Rubber gaskets 24, 241 are arranged in the covers 6, 7 respectively in contact with the plates 21, 22 and are perforated at 29, 29<SP>1</SP> . . . 30. The plates 21, 22 are perforated so that the cavities 29 ... 29<SP>8</SP> can be fed with pressure fluid, the cavity 30 being at the suction pressure. Plates such as 32 are pinned to the casing in order to limit the distortion of the gasket 24. In a third modification, Fig. 13, the bearings 39, 40 are fixed whilst the movable bearings 41, 42 are provided with openings 47, 48, whereby pressure fluid may be fed to the cavities 49, 50 of a gasket 51 which is held in position by a plate 54, 55. In a final modification, Fig. 17, applied to a pump of the internally-meshing gear type, the gasket 69 is provided with cavities which are fed with pressure fluid through holes 71 in a plate 66, the gasket being positioned by plates located in the cavities and pinned to the casing 67. If desired the locating plates for the gasket may be formed integral with the casing of the pump.
Patent GB-1468506-A (GB)
Title: Flexible decorative coated sheet material
IPC: D21H19/30
Filed: 1973-03-26
Abstract: 1468506 Flexible decorative coated sheet materials IMPERIAL CHEMICAL INDUSTRIES Ltd 6 March 1974 [26 March 1973] 14346/73 Heading B2E [Also in Division B6] A decorative sheet material in the form of a roll comprises a flexible porous substrate provided, on what is its decorative surface, with a flexible uncured coating of an acidcurable resin which is curable by an acid containing adhesive applied to the other surface of the flexible sheet material so that when the sheet material is unrolled and attached to a wall or other surface by means of the acid-containing adhesive, which at this stage is applied to the other surface of the flexible material, the coating cures. Suitable acid curable resins include formaldehyde condensates of amino and amide compounds, e.g. urea, melamine, substituted melamines, guanamine, ethylene urea and thiourea and the alkylated derivatives of these condensates. Other suitable resins include acrylic copolymers containing acrylamide and methacrylamide which have been condensed with formaldehyde and alkylated derivatives of these condensates. A suitable substrate is a paper sheet although woven, non-woven and felted fabrics may be employed. The paper sheet may contain a blend of cellulosic fibres with artificial fibres, e.g. nylon, rayon or acrylic.
Patent GB-416139-A (GB)
Title: Improvements in gearing for propellers
IPC: F16H1/22
Filed: 1933-05-18
Abstract: 416,139. Toothed gearing. ROWLEDGE, A. J., Ellerslie, Trowels Lane, Littleover, Derby. May 18, 1933, No. 14410. [Class 80 (i).] Relates to gearing for driving two aircraft propellers in opposite directions. Accord.- ing to the invention, the propellers are mounted on a shaft f and coaxial sleeve g<1>, respectively carrying pinions e, g, one of which is in permanent engagement with one of a pair of driving pinions c, cl on the driving shaft b, while the other is connected to the other driving pinion through two lay pinions d, Fig. 2. The gears d are supported on roller bearings d<1>. The hollow shaft b is splined with play to a shaft a<4> splined at a3 with play to the crankshaft a.
Patent GB-848140-A (GB)
Title: Improvements in or relating to a d-c gate circuit
IPC: H03K17/74
Filed: 1958-05-06
Abstract: 848,140. Electric distributers. DAYSTROM Inc. May 6, 1958 [May 8, 1957], No. 14505/58. Class 40(3). [Also in Group XL(c)] The Figure shows a distributer in which two sources of D.C. current I 0 , I 0 <SP>1</SP> of opposite polarity are switched alternately by the single switching current Is from source 12 into the common load 11. When the switching current is positive diodes 16, 17, 18<SP>1</SP> are blocked and diodes 18, 16<SP>1</SP> 17<SP>1</SP> are conductive so that all of the positive current I 0 passes through load 11 and current I 0 <SP>1</SP> is gated away from the load. When the switching current I s has its polarity reversed and becomes negative the current I 0 <SP>1</SP>is gated into the load 11 and the current I 0 gated away from the load.
Patent GB-201686-A (GB)
Title: Improvements in fountain pens
IPC: B43K5/04
Filed: 1922-05-23
Abstract: 201,686. Myers, L., and Jacobs, E. May 23, 1922. Reservoir pens.-In a self-filling reservoir pen of the collapsabLesac type, the barrel 1, Figs. 2 and 7, is formed from a metal tube provided with a longitudinal slot 3, the edges of which are bent inwards to form a support and guide for the operating-lever 9, and are formed with intermediate notches 6 engaged by a. spring 13 disposed annularly within the barrel and forming the pivotal mounting for the lever. At one end of the slot 3 a depression 7 is formed to receive the end 11 of the lever 9 within the inoperative position. The lever is formed of channel-shaped metal, and is provided at its inner end with lateral projections 18, Fig. 8, which engage in the channel-shaped presser-bar 16. The ends of the spring 13 may be flattened to give a better grip on the interior of the barrel and to prevent deformation of the sac. The barrel may be bent from a blank of sheet metal, the slot for the. operating-lever being arranged along the resulting seam.
Patent GB-421777-A (GB)
Title: Improvements in streamlined bodies, particularly for motor vehicles
IPC: B62D35/00
Filed: 1934-05-14
Abstract: 421,777. Vehicle bodies. TENNANT, W. J., 111, Hatton Garden, London.-(Tatra Works, Ltd.; 200, Kartouzska, Smichov, Prague) May 14, 1934, No. 14556. [Class 108 (i)] In streamlined motor vehicles having a flattened under surface and in which the rear wheels are enclosed while the front wheels project outside the main body, the widest part of the body is at about the rear wheels and the lateral walls are contracted immediately in rear to a rounded tip. The lateral walls 8 in the rear of the widest part, i.e. at the rear wheels, are caused to approach one another and the upper surfaces between these lateral walls and the upper structure curve downwardly towards the rear as shown, to avoid eddy currents at the rear. The front portion of the vehicle is provided with housings for the wheels, which housings form with the body, passages for the air currents 12 and directs them on to the lateral walls of the body, the outer layers of air being guided parallel to the wheel recesses. Cooling air for the engines may be admitted at the front or at the upper part 15 and may pass out at the slots 14.
Patent GB-684046-A (GB)
Title: Improvements in or relating to the dyeing of aromatic polyester fibres, filaments, yarns, fabrics, films and like shaped articles
IPC: D06P3/54
Filed: 1950-06-12
Abstract: Filaments, fibres, yarns, fabrics films and like shaped articles made of polyethylene terephthalate are subjected to heat treatment at a temperature of 230 DEG  to 255 DEG  C. and then dyed.  The heat treatment may be effected by contact with a hot metal surface, by means of hot inert liquids or gases, infra-red lamps or by passage between high-frequency electrodes.  The polyethylene terephthalate may be oriented by a cold drawing process prior to the heat treatment, and during the latter they may or may not be allowed to relax.  Examples are given in which polyethylene terephthalate yarn or fabric is heated by passing it in contact with a heated metal surface and dyed with an acetate type dyestuff or azoic dyestuff. Basic or vat dyestuffs may also be used.
Patent GB-143909-A (GB)
Title: Improvements in the construction of portable houses and buildings
IPC: E04B1/343
Filed: 1920-05-28
Abstract: 143,909. Fortuny y de Carpi, T. de. May 28, 1919, [Convention date]. Portable buildings.-A portable building, shown partly in plan in Fig. 1, is formed of blocks or slabs a and beams which interfit by means of projections and recesses, but without the use of mortar or cement. The walls are composed of blocks, Fig. 4, having projections and recesses. The floors are composed of beams g, Fig. 6, laid side by side with end projections which fit in cavities in the wall blocks. The roof is similar but sloping. The partition slabs engage grooves in the base-blocks and in the floor girders. The stairs are secured by pins q to the walls. The recesses or channels in the blocks are filled with fine sand or ashes. Some of the blocks may be plain, and some may have projections only or recesses only.
Patent GB-633117-A (GB)
Title: Improvements in processes and apparatus for the treatment of hafnium, zirconium, titanium, thorium and their alloys in the molten state
IPC: C22B60/02
Filed: 1947-06-02
Abstract: A process for the production of shaped articles from hafnium, zirconium, titanium or thorium or alloys of these metals, which involves treatment of such metal in the molten state in vacuo or in a noble gas atmosphere, is characterized in that the said treatment is carried out in apparatus having surfaces, in contact with the molten metal, made of carbon, graphite or high melting carbides, e.g. carbides of hafnium, zirconium titanium, tungsten, molybdenum and tantalum.  Ingots may be made by melting the metal under vacuum in a graphite crucible and transferring it to a cold mould having a graphite surface.  Alloys of the metals may be made by melting the metals in the said apparatus and adding alloying metals.
Patent GB-528875-A (GB)
Title: Improvements relating to acetylene generators
IPC: C10H5/00
Filed: 1939-05-16
Abstract: 528,875. Acetylene generators. KEEL, C. F. May 16, 1939, No. 14607. Convention date, May 24, 1938. [Class 2 (i)] Acetylene is generated from calcium carbide in an apparatus comprising a motor-driven rotatable drum in a stationary casing provided at one end with an axially arranged water spray injection nozzle. The preferred means of driving the drum is a hydraulic motor, to which in the preferred form of the invention is attached a pipe through which water is passed to the injection nozzle. The gas evolved is passed to a washing apparatus and therein to a gasometer. Means are provided whereby the movement of the drum and the spray are stopped at a maximum and a minimum position of the gasometer hood to correspond to the conditions when the gasometer is full and when the charge in the drum is exhausted. The apparatus in its preferred form is shown in Fig. 1 in which a drum a driven by hydraulic motor g revolves in a casing d provided with an outlet pipe e for the gas to the gasometer q. An opening f in the casing is provided for the residue of the carbide m. The water feed for the hydraulic motor and the spray comes through the feed pipe h to a control cock n controlled from the gasometer board, and thence to the motor and also through the pipe k to the nozzle c. The byepass pipe s and the hand controlled valve r serve to start the apparatus when the gasometer hood is at the minimum position after a recharge. The apparatus is so constructed that the carbide may be charged into the drum in packages in which it is transported. Alternative constructions are described in which the carbide is inserted in its transport package in such a position that a portion of the contents of the package falls from the package at each revolution of the drum. The calcium hydrate is removed as it is produced in the form of a moist soft crumbly mass. The Specification as open to inspection under Sect. 91 describes also a third alternative construction in which the carbide is axially introduced through an opening in the casing in concentric relation to the shaft of the drum, the introduction being effected by means of a specially constructed filling container, or again directly in its transport package. In this modification the motor spray is introduced at an angle to the axis of the drum. This subjectmatter does not appear in the Specification as accepted.
Patent GB-191670-A (GB)
Title: Improvements in or relating to holders for electric lamps
IPC: H01R33/22
Filed: 1922-05-25
Abstract: 191,670. Baker, W. S. G., and Fletcher, J. Y. May 25, 1922. Holders. - A screwsocket holder for rapid wiring and attachment to a supporting tube or surface consists of an insulating body part containing on one side the metal screw socket and having a recess on the other side in which are situated an arm extending from the socket, a metal terminal piece extending from the central lamp cap contact, and another insulating block which carries the ends of the circuit wires. As shown in Figs. 2 and 3 the body 1 contains the screw tube 2, an arm 5 of which extends up into the recess 3 to make contact with the line wire 6. The metal strip or equivalent 8 forming the central contact passes clearlv through an opening 9 in the screw tube 2 into the recess 3 to make contact with the second line wire 7, both line wires passing through holes in the insulating clamping block 4 and being bent up in slots 13, as shown in Fig. 3. A screw 10 draws the block 4 towards the body 1 for securing the wires. The holder is secured in place by screws passing through holes 14. In the form shown in Fig. 5 for attachment at 22 to a tube, the block 19<a> in the upper recess 3 is drawn down by the cap 20 which is screwed into a sleeve 21 or. the body 1.
Patent GB-830409-A (GB)
Title: Electronic calculator
IPC: G06F7/52
Filed: 1956-05-14
Abstract: 830,409. Electronic calculating apparatus. INTERNATIONAL BUSINESS MACHINES CORPORATION. May 14, 1956 [May 16, 1955], No. 14917/56. Drawings to Specification. Class 106 (1). The machine described is a modification of that described in Specification 767,236 which is referred to, the main modifications being that a drum is used in place of a disc, that provision is made for aligning the decimal points of two numbers, and that the machine can also perform the calculation x#y/z, the square root being extracted by the method of repeatedly subtracting odd integers.
Patent GB-1525913-A (GB)
Title: Process for producing watersoluble amylose and maltopentaose
IPC: C12P19/14
Filed: 1977-04-07
Abstract: To prepare maltopentaose, the following multistage process is used:     - preparation of a solution of amylose in an organic solvent,   - mixing of the solution with an aqueous acid, - heating of the new solution and mixing thereof with a second organic solvent which is able to remove the first organic solvent from the hydrolysed amylose and allows the formation of a precipitate in the solution thus obtained, and - isolation of the precipitate, as a result of which water-soluble amylose is obtained.   Amylase obtained from Bacillus licheniformis is then added to the soluble amylose and a fourth solution is thus formed, the fourth solution is incubated, the amylase is deactivated and the solution thus obtained is fractionated and in this way the solution is obtained which is rich in maltopentaose. Maltopentaose is a polysaccharide which is useful as a substrate in diagnostic serum analyses.
Patent GB-1151815-A (GB)
Title: Welding Electrode.
Inventor: MOUTON RENE JACQUES
IPC: B23K35/04
Filed: 1967-03-31
Abstract: 1,151,815. Welding by fusion. R. J. MOUTON. 31 March, 1967 [1 April, 1966], No. 14959/67. Heading B3R. [Also in Division C7] A coated welded electrode has a flux coating comprising a major proportion of alkali metal and/or alkaline earth metal carbonates and/or fluorides mixed with at least 0À5% of a boron oxide containing compound and at least 1% of one or more of carbonates of manganese and/or iron and optionally higher oxides of Mn and/or Fe. The higher oxides may be MnO 2 , Mn 2 O 3 , Mn 3 O 4 , Fe 2 O 3  or Fe 3 O 4  and the boron oxide containing compound may be calcium or manganese metaborate. The electrode may be a mild steel wire and several examples of flux compositions are given which include magnesium or calcium carbonate, calcium fluoride, manganese or iron carbonate, manganese or calcium metaborate, alumina, chromium oxide, potassium and sodium silicate, Mg, Fe, Fe-Si, Si-Mn, Fe-Mn, Fe-Ti.
Patent GB-969173-A (GB)
Title: Percolating unit for coffee machines
IPC: A47J31/46
Filed: 1963-04-17
Abstract: 969,173. Coffee making machines. C. E. VALENTE. April 17, 1963 [April 28, 1962], No. 14997/63. Heading A4D. In a percolating unit, a first part holding the spray rose and filter seal and a second part carrying the filter holder in horizontal guides are movable relatively towards and away from each other by hydraulic and spring means respectively. In one embodiment (Fig. 1), a disc 2 carrying a spray nose 3 and sealing packing 4 is integral with the stem 5 of a piston 7 which is reciprocable in a cylinder 8 fast with the body 1 of the unit which supports in lateral guides a filter holder 9. The piston 7 is depressed by hydraulic pressure in the chamber 8<SP>1</SP> to abut the sealing 4 on the filter periphery and, after admitting water by tap means through channels 13, 14 and through the coffee powder in the filter, the hydraulic pressure is relieved and the piston 7 is raised by a spring 10 to leave the filter holder 8 free for removal. In another embodiment (Fig 4), the cylinder 17 carrying by distance pieces 18 and guides 19 the filter holder 20 and filter 21 is movable upwardly about a fixed piston 15 carrying the spray rose and seal by hydraulic pressure admitted through a piston stem 22 and, downwardly to break the seal by a spring 24.
Patent GB-624060-A (GB)
Title: Improvements in transmission lines
IPC: H01B11/18
Filed: 1947-06-06
Abstract: 624,060. Air-space cables. WESTERN ELECTRIC CO., Inc. June 6, 1947, No. 15020. Convention date, Aug. 19, 1943. Drawings to Specification. [Class 36] A concentric conductor transmission line comprises inner and outer cylindrical conductors in which the ratio of the inner diameter of the outer conductor to the outer diameter. of the inner conductor is approximately 1.65: 1. For a given power transmission along the line terminated by its characteristic impedance there arises a minimum voltage gradient on the outer surface of the inner conductor; i.e. the line is provided with a maximum power-carrying capability as the applied voltage has a minimum tendency to cause flash-over between the conductors. The conductors may be separated by insulating spacers of the types referred to in Specifications 353,020 and 524,527.
Patent GB-1346029-A (GB)
IPC: C07D295/04
Filed: 1972-03-30
Abstract: 1346029 Ketone derivatives CASSELLA FARBWERKE MAINKUR AG 30 March 1972 [2 April 1971] 15036/72 Heading C2C The invention comprises novel ketone derivatives of the formula and their pharmaceutically acceptable acid addition salts, wherein R 1  is CN, CONH 2 , COOH, COONa or COOK; R 2  is a radical of the formula or wherein X is C 1-4  alkylene, Y is -OCO- or -CONH-; R 3  and R 4  each are H or C 1-6  alkyl; and R 5  is H or OH, the nucleus I is optionally substituted by 1 to 3 alkoxy, alkyl or NO 2  radicals or halogen atoms; the nucleus II is optionally substituted by 1 to 3 alkoxy or alkyl radicals or halogen atoms; and the nucleus III is optionally substituted by 1 to 3 methoxy radicals and their preparation. The compounds are prepared by reacting compounds of the formula HR 2  with compounds of the formula or alternatively compounds in which Y is -OCO- may be obtained by esterifying the corresponding hydroxyalkylpiperazine derivatives, compounds in which R 1  is CN by the addition of hydrogen cyanide to compounds of the formula and compounds in which R 1  is COOH, COOK 1  or COONa by acid hydrolysis of the corresponding nitriles of the formula or by the diazotization of the corresponding carboxamides of the formula following by, if desired, conversion to the sodium or potassium salts. 3 - Benzoylacrylonitriles, in which the benzene ring is optionally substituted, are obtained by reacting KCN with the appropriate quaternary ammonium salts resulting from the reaction between trimethylamine and the corresponding 2-benzoylvinyl chlorides, obtained by treating the corresponding benzoyl chlorides with acetylene. 3 - (2,3,4 - Trimethoxybenzoyl)acrylic acid is obtained by diazotizing 3-(2,3,4-trimethoxybenzoyl)acrylamide, resulting from the hydrolysis of the corresponding acrylonitrile. 3<SP>1</SP>,4<SP>1</SP>,5<SP>1 </SP>- Trimethoxy - 2 - (1 - piperazine)- acetanilide is obtained by reacting piperazine with 2 - chloro - 3<SP>1</SP>,4<SP>1</SP>,5<SP>1</SP> - trimethoxyacetanilide resulting from the reaction between 3,4,5- trimethoxyaniline und chloroacetyl chloride. 1 - (2 - Hydroxyethyl) - 4 - [2 - (3 - methoxybenzoyl) - 1 - cyanoethyl]piperazine is prepared by 1 - (2 - hydroxyethyl)piperazine with 3- (3 - methoxybenzoyl)acrylonitrile, obtained by reacting KCN with 2-(3-methoxybenzoyl)vinyl chloride resulting from the reaction of thionyl chloride on 2-(3-methoxybenzoyl)vinyl alcohol sodium salt, which is made by reacting 3- methoxyacetophenone with ethyl formate and sodium methylate. Other methoxy substituted benzoylvinyl chlorides are obtained in a similar manner. Pharmaceutical compositions, suitable for oral, parenteral or rectal administration, contain the above novel compounds or acid addition salts thereof together with pharmaceutically acceptable diluents or carriers. The compounds exert dilatory action on the cerebral vessels.
Patent GB-227723-A (GB)
Title: Improvements in vacuum or suction cleaning machines
IPC: A47L5/32
Filed: 1924-06-23
Abstract: 227,723. Haddan, A. J. H., (Wright Co., M. S.). Tune 23, 1924. Capillary-action lubricators.-The motor shaft 14 of a vacuum cleaner is lubricated by a spring- held wick H passing through an opening in the bushings D', oil being supplied through a cup E and a groove d in the bushings.