baber/WOPTO huggingface dataset:
Patent GB-591973-A (GB)
Title: Improvements in or relating to pumps for liquids
IPC: F04C11/00
Filed: 1945-04-30
Abstract: 591,973. Rotary pumps. SMITH'S JACKING SYSTEMS, Ltd., and SESSIONS, D. W. April 30, 1945, No. 10923. [Class 110 (ii)] In a hydraulic apparatus, a rotary pump 20 of the geared-vane type is mounted within a closed tank containing the liquid to be pumped, and the pump has an outlet pipe 31 passing out of the tank and a release valve 34 associated with a valve control member located outside the tank. An electric motor 15 is fixed to the tank and has its driving shaft coaxial with, and connected to, the rotary spindle of the pump. A delivery bore 32 from the pump, closed by the spring- loaded valve 34, is opened by a solenoid device 38 with electric connections passing out of the tank to a switch. The switch has an arm 48 movable in one direction to operate the motor and in the other direction to open the release valve. An air filter is carried by a bolted-on tap cover to the tank, and an oil filter inside the tank communicates with the pump inlet. Specifications 352,268 and 500,745 are referred to.
Patent GB-1116424-A (GB)
Title: X-y recorder having intercoupled cord-pulley means for independent x-y drives
Inventor: POLSTER NORMAN EDWIN
IPC: G01C15/00
Filed: 1967-03-08
Abstract: 1,116,424. Recording apparatus. LEEDS & NORTHRUP CO. March 8, 1967 [June 7, 1966], No. 10933/67. Heading G1J. A two co-ordinate recorder comprises a marker 27 movable linearly along a movable guide 14 which is movable along a fixed guide 11, and motors 36 and 45 for driving the marker and the movable guide respectively via a first pulley and cable arrangement and a second pulley and cable arrangement, the two pulleys and cable arrangements being coupled by a floating link 33 which moves when the motor 45 operates. The guide 11 is a rod of circular cross section along which wheels 17 of the movable guide carriage 16 roll. The marker assembly includes a hook 54 co-operating with a scale 51B and a light bar 51 is attached to a bell crank 55 so that depression of a rod 50 causes the pen to be lifted above a chart 22 due to the engagement of the bar 51 with the hook 54. Rotation of the motor 36 causes movement of the marker in the Y direction via the first pulley and cable arrangement which includes a drum 35 around which the ends of the cable are wound. Conventional multiturn potentiometers 37, 46 for use in a self balancing measuring system are connected to the shafts of the drums 35, 42. Rotation of the motor 45 causes movement of the guide 14 in the 'X' direction, the floating link 33 moving in the opposite direction to the guide to prevent consequential movement of the marker in the 'Y' direction. A single tensioning device 44 provides for adjustment of the tension in both cable arrangements. A modification is described in which a housing covers the pulley and cable arrangements and a strip chart is fed in by a motor driven feed roll. Such an arrangement may be used as an X-Y recorder or as a Y- time recorder. In a further modification a two pen or X-Y 1 -Y 2  recorder is described.
Patent GB-978515-A (GB)
Title: Reinforced resilient synthetic foam articles
IPC: A47C7/18
Filed: 1962-03-22
Abstract: 978,515. Mattresses &c. DUNLOP RUBBER CO. Ltd. March 22, 1962 [March 29, 1961], No. 10939/62. Heading A4M. A resilient, synthetic foam, e.g. polyurethane, cushion 1 and 2 or mattress is reinforced by a flexible strip 3, e.g. of textile, plastics or rubber material, in the form of a frame of rectangular cross-section which frame has external dimensions equal to the maximum external dimensions of the cushion 1, 2, the strip 3 being adhered to the edges of the load carrying surface of the cushion. A cushion cover is provided.
Patent GB-499697-A (GB)
Title: Improvements in or relating to guns which fire during forward movement of the gun
IPC: F41A19/06
Filed: 1938-04-11
Abstract: 499,697. Ordnance. RHEINMETALLBORSIG AKT.-GES., ERNESTI, W., and HERLACH, H. April 11, 1938, No. 11051. [Classes 92 (i) and 92 (ii)] A firing lever h for differential recoil guns one end of which engages a fixed cam l on the mounting whilst the otlier end bears against the firing button m, is supported on the gun slide b by a bearing member f<2> which can slide against the action of a spring d. The lever is supported against a surface b<2> on the gun slide by adjustable screws i<1>, i<2>, and when firing moves bodily on the fulcrum n formed by the screw i<1>. If the firing mechanism is at safe so that inward movement of the button m is precluded, the lever h moves about the point of contact of its end h<8> with the button. The roller h<3> at the lower end of the lever is mounted on a crank h<2> controlled by a torsion spring so that the lever is moved by the cam l during run out but not during recoil.
Patent GB-199202-A (GB)
Title: Improvements in fastening devices for window blind cords
IPC: E06B9/324
Filed: 1922-04-21
Abstract: 199,202. Ireland, J. April 21, 1922. Clips and clamps, pivoted-jaw. -A gripping device for the cord E of a window blind &c. comprises a strip B of thin metal bent to form two gripping surfaces b<1>, b<2> and pressed against the cord by a spiral spring d on a pin D<1> sliding in a frame D<2>. The grip is released either by pulling cut the cord E or by a pivoted lever on the frame D<2>. In a modification, the strip B is pivoted at its upper end to a plate against which the cord is pressed, and the spring acts at the lower end of the, strip.
Patent GB-470875-A (GB)
Title: Improvements in or relating to electric circuit breakers
Inventor: HAROLD HERBERT MATTHEWS
IPC: B60T13/24
Filed: 1936-04-20
Abstract: 470,875. Switch contacts. WEST & CO., Ltd., A., MATTHEWS, H. H., and JONES, J. E. April 20, 1936, No. 11260. [Class 38 (v)] The two contacts 1, 2 are brought into engagement with one another by relative movement in a direction substantially normal to the contacting surfaces, and in response to the consequent thrust one of the contacts is rotated about an axis parallel to the direction of thrust, whereby a grinding action between the contacting surfaces is produced. In the construction shown, the contact is mounted on its support 3 by means of a compression spring 4 urging the contact away from the support, the spring being insulated by blocks 9, 10 from the disc-shaped base 6 of the contact and the disc-shaped extremity 7 of the support 3. The electrical connection between the contact and the support is effected by means of a number of flexible copper leads 11 which are connected near the peripheries of the discs 6, 7 and follow a skewed or helical path around the common axis of the discs. The outward movement of the contact is limited by a guiding and retaining member 5 in the form of a tube with a turned over end 8, the tube being screwed on to the disc 7.
Patent GB-549409-A (GB)
Title: Improvements in electrically driven clocks
IPC: G04C3/02
Filed: 1941-09-04
Abstract: 549,409. Electrically-driven clocks. DRUMMOND, C. T. Sept. 4,1941, Nos. 11300 and 11301. [Class 139] A clock with an electrically maintainec pendulum has a main pendulum 1, Fig. 1, and an auxiliary or driving pendulum 5 connectec by a member formed ir three parts 7, 8 and 9 The part 7 is pivoted tc the main pendulum while the part 9 is mounted for limitec movement in an opening 17 in the auxiliary pendulum 5; the part 8 is formed as a hollow cylindrical ring with threaded rods 13, 14 adjustably engaging the parts 7 and 9. The part 8 has pivoted theretc a latch 18 for cooperation with a spring controlled switch 23 tc control the energizatior of an electromagnet 3( whereby an impulse is imparted through the armature 29 to the pendulum 5. A counterwieghted lever 31 at the upper end of the pendulum 5 actuates a wheel 35 driving the clock mechanism. The latch consists of a counterbalanced strip of metal 18 with a small metal insulated plate 19 at its free end. The switch consists of a casing with a spring controlled bolt 25 passing through an aperture in the cover 24. The spring is regulated by a screw 28.
Patent GB-586851-A (GB)
Title: Improvements relating to optical systems
IPC: G02B17/08
Filed: 1944-06-14
Abstract: 586,851. Optical systems. BRITISH THOMSON-HOUSTON CO., Ltd., and DYSON, J. June 14, 1944, No. 11357. [Class 97 (i)] Spherical aberration of spherical mirror A is corrected by a hemispherical refracting member B of uniform thickness placed in front of the mirror and concentric therewith. In an alternative the convex side of the member B is towards the mirror and n, figured refracting plate, for example of plastic compound, may be placed at the common centre of curvature to effect final correction. Data are given in the Specification, and Specification 544,694 is referred to.
Patent GB-746923-A (GB)
Title: Apparatus for partial removal of water impregnating textile fibres and the like after the wet dyeing, washing or other treatments
IPC: D06B15/00
Filed: 1954-04-20
Abstract: 746,923. Drying textile fibres. MEZZERA SOC. PER AZIONI. April 20, 1954 [April 23, 1953], No. 11362/54. Class 34(2). In the partial removal of water from textile fibres in cakes, hanks, or skeins M after dyeing or washing the material is radially compressed by the pressure set up in an annular chamber 12 surrounding it while expansion is prevented at the ends, the liquid escaping through perforations in a central support. A rigid casing 1 is carried by a support 15 having a base 2 for a perforated tubular column 3 around which the hanks or skeins M are piled and a tubular member 13 within the casing retains by means of rings 14 the ends of a resilient tubular diaphragm 8, a cover 5 closing the chamber and preventing expansion of the hanks. Fluid under pressure is supplied through a conduit 10 to the annular chamber 12 causing diaphragm 8 to move inwards and compress the material, the liquid escaping through holes in column 3.
Patent GB-1058645-A (GB)
Title: Treatment of aluminium and aluminium alloys
Inventor: GAUNT JAMES GEORGE
IPC: C22F1/047
Filed: 1963-09-18
Abstract: A method of reducing aluminium or aluminium alloys to sheet form by rolling (see Division B3) may be applied to alloys of the composition .Mg.up to 3.0% .Fe.up to 0.12% .Si.up to 0.08% .Cu.0.01 - 0.15% .Mn.0 - 0.3% .Al.the balance with incidental impurities such as Ni, Zn, Cr, Ti not exceeding 0.03% each and 0.1% in total. Several specific alloys or ranges of alloys are referred to within the range .Mg.up to 3.22% .Si.up to 0.12% .Fe.up to 0.17% .Ce.up to 0.2% .Mn.up to 0.45% .Al.the balance
Patent GB-236332-A (GB)
Title: Manufacture of indigoid dyestuffs and intermediate products
Filed: 1924-05-08
Abstract: Halogenated thionaphthisatins are produced by treating thionaphthisatins with halogen, advantageously in the presence of an indifferent diluent; the production of monobrom-derivatives of 1 : 2-, 2 : 1-, and 2 : 3-thionaphthisatins, by brominating in nitrobenzene, is described.  Thioindigoid dyes, which dye cotton from the vat in bordeaux-red, brown, violet, &c. tints are obtained by condensing the above described halogenated thionaphthisatins with compounds containing a reactive cyclic methylene group; the dyestuffs may be further halogenated, or, when they contain an amino group, acidylated.  In examples, the above described monobromthionaphthisatins are condensed with oxythionaphthene carboxylic acid, or acenaphthenone.  Specification 214,864 is referred to.
Patent GB-256540-A (GB)
Title: Improvements in water tube steam generators
IPC: F22B1/18
Filed: 1926-04-30
Abstract: 256,540. Stirling Boiler Co., Ltd., and Wallis, S. April 30, 1926. Heating by indirect contact of hot waste gases. -The dust hopper C or furnace throat of a refuse destructor or the like forming the combustion chamber of a waste heat water-tube boiler has a tube screen G connected at one end with the front lower or mud drum F, and at the other by means of downcomers I with the front upper or steam drum E of the boiler. The hopper C is the first of a number which is dependent upon the size of the boiler. The tubes G may be spaced closely together and being located near to the point of admission of the flame are preferably steeply inclined. The drum E may be extended beyond the furnace walls and the downcomers I built in the side walls or insulated in casings.
Patent GB-662883-A (GB)
Title: Improvements in or relating to bolts for locks
IPC: F16P3/08
Filed: 1949-04-29
Abstract: 662,883. Machinery guards. WEBSTER, C. J., and ANSON, W. E. April 24, 1950 [April 29, 1949], No. 11457/49. Class 80 (iv) [Also in Group XXV] In a lock for a machinery guard the bolt is formed in at least two relatively movable parts formed with notches which are aligned when the bolt parts are engaged with means carried in the keeper so as to permit a roller, controlling a switch to enter the aligned notches and effect the supply of power to the machinery. In one form of which Figs. 3 and 5 are sections at right angles the bolt comprises an outer sleeve 14 sliding in bushes 13 and urged to the retracted position by a spring 22; an inner sleeve 15 projected relative to the outer sleeve by a spring 18; and an inner rod 16 connected at 17 to the outer sleeve. When the bolt is projected into the keeper, which is carried on the guard, the notches are aligned and the switch closed. If the guard is not in place the notches are not aligned and no power is supplied to the machinery. The bolt is projected by a knob 29 and retained by rotation of the knob on its guiding rod 32. To release the lock, the knob is returned to the upright position so that the bolt tends to return to the retracted position under the action of spring 22. A delaying mechanism connected to the bolt delays the release of the guard after the opening of the switch to allow the machinery to come to rest. Specification 618,'369 is referred to.
Patent GB-361804-A (GB)
Title: Improvements in electric luminous discharge tubes
Filed: 1931-04-17
Abstract: 361,804. Discharge lamps. GENERAL ELECTRIC CO., Ltd., Magnet House, Aldwych, London.-(Assignees of Patent-Treuhand-Ges. fur Elektrische Gl³hlampen; 11, Ehrenbergstrasse, Berlin.) April 17, 1931, No. 11472. Convention date, July 7, 1930. [Class 39 (i).] The positive column of a discharge lamp passes through a tube 1, Fig. 1, of quartz or hard glass, having its ends ground into hot-electrode containers 3 of soft glass. An outer envelope 5 is sealed to the containers 3 at 4 and has the same filling as the tube 1. The electrodes may be adjacent and the envelope 5 spherical. In a modification, Fig. 3, the tube 1<1> is straight and the electrode containers 3 are surrounded by bands 6 carrying resilient tongues 7 which press against the outer envelope 51.
Patent GB-585222-A (GB)
Title: Connecting means for divided casings
IPC: F16B7/20
Filed: 1944-06-15
Abstract: 585,222. Containers. BENDIX AVIATION CORPORATION. June 15, 1944, No. 11474. Convention date, June 30, 1943. [Class 66] [Also in Group XXXV] A casing, particularly for an electric motor, comprises two parts 16, 17 each with grooved lugs 21, 22, the separate grooves forming a continuous annular groove when the two parts are engaged to receive a circumferentially extending member such as a split ring 25.
Patent GB-1497612-A (GB)
Title: Process for treating organic wastes and product thereof
IPC: B09B3/00
Filed: 1975-03-20
Abstract: 1497612 Treating wastes COMBUSTION EQUIPMENT ASSOCIATES Inc 20 March 1975 [29 March 1974] 11631/75 Heading C1K [Also in Division C5] The solid organic waste fraction of a solid waste material is embrittled by treating with mineral acid and at elevated temperature, the conditions of the treatment being such as to form an embrittled material readily reducible to a finely divided form, without any substantial pyrolysis, any substantial decomposition or any substantial loss in dry weight of the solid waste fraction. The solid waste may be municipal waste, wood waste or agricultural waste. The mineral acid, which may be in gaseous form or in solution form, may be HCI, H 2 SO 4 , HNO 3  or H 3 PO 4  or a precursor of such an acid, e.g. ZnCl 2 , FeCl 3 , SO 3 , NO 2  or N 2 O 5 . Inorganics may be separated before embrittlement or after the embrittled material has been ground. The ground embrittled material may be mixed with a gaseous, liquid or solid fuel and indeed the grinding of the embrittled material may take place in a liquid fuel. Fuels include fuel oil, natural gas, coal, combustible hydrocarbon wastes, waste fuels, waste solvents and sewage sludge. The ground embrittled material may also be pelletized with or without the use of a binder, e.g. water, starch, wax, and mineral oil. Alternatively the ground embrittled material may be compacted. In the examples, wastes treated include newsprint, corrugated paper board, various paper packagings, leaves, pine needles, evergreen clippings, preshredded twigs, apple core, banana skin, ham slice, citrus peels, melon rinds, beef trimmings, and municipal waste.
Patent GB-1482501-A (GB)
Title: Method of suspension polymerization of vinyl chloride
IPC: C08F14/06
Filed: 1975-03-20
Abstract: 1482501 Suspension polymerization of vinyl chloride KANEGAFUCHI KAGAKU KOGYO KK 20 March 1975 [26 March 1974 20 June 1974] 11704/75 Heading C3P A method for reducing scale formation during the polymerization of vinyl chloride comprises polymerizing vinyl chloride or a mixture of vinyl chloride and less than 50% by weight, based on the total monomer weight, of at least one copolymerizable monomer, as a suspension in an aqueous medium in the presence of an oil-soluble initiator and a suspension stabilizer wherein 0À005-50 p.p.m. of a nitrite and 10-1,000 p.p.m. of a metal salt, the cation of which is polyvalent, other than a nitrite, each based on the weight of the aqueous medium is present. The metallic salt preferably contains a polyvalent cation and may be selected from aluminium sulphate, aluminium chloride, ferric chloride, stannic chloride, titanium trichloride, titanium tetrachloride, antimony pentachloride, calcium chloride, potassium carbonate, calcium phosphate, calcium carbonate or ferrous chloride whilst the nitrite may be inorganic (sodium, potassium or calcium nitrite) or organic (the nitrous acid salt of dicyclohexylamine or triethylamine). The copolymerizable monomer is preferably vinylidene chloride, ethylene, propylene or vinyl acetate and the initiator may be benzoyl peroxide, lauroyl peroxide, t-butyl peroxybivalerate, diisopropylperoxydicarbonate, di - 2 - ethoxyethylperoxydicarbonate, azobis- (dimethylvaleronitrile) and azobis(isobutyronitrile). The stabilizer is preferably partially saponified polyvinyl acetate, polyacrylic acid, cellulose derivatives, starch, gelatine and tricalcium phosphate.
Patent GB-197668-A (GB)
Title: Combined air valve and fuel pump for internal combustion engines
IPC: F01L1/28
Filed: 1923-05-01
Abstract: 197,668. Wennerby, A. O. L. May 11, 1922, [Convention date]. Valves; valve-gear.-The aamission of mixture pump is formed in the hollow stem of a mechanically-actuated air inlet valve 3 by providing a fixed plunger 5 over which the air valve works. On the downward movement of the air valve, the fuel valve, of the pump remains seated until it is tapped open by contact of the collar 14 on the air valve stem with the projection 13 on the rod attached to the fuel valve 7. The chamber 16 thus fills with fuel, which is injected into the cylinder when the air valve 3, closes. The amount of fuel injected depends upon the normal distance between the projections 13 and 14, which may be varied by means of a left- and right-hand threaded nut 15 actuated by the governor.
Patent GB-527687-A (GB)
Title: Improvements relating to methods of producing electric resistances
IPC: H01C7/00
Filed: 1939-04-19
Abstract: 527,687. Electric resistances. BRITISH THOMSON-HOUSTON CO., Ltd. April 19, 1939, No. 11800. Convention date, April 21, 1938. [Class 37] A solid resistance is formed from copper dust and steatite or other non-conductive dust, mixed together, pressed into shape, and, preferably, thereafter fired at a low temperature.
Patent GB-692849-A (GB)
Title: Improvements in electric brakes
IPC: H02K49/04
Filed: 1950-10-10
Abstract: 692,849. Eddy-current brakes. ELECTROMECANIQUE DE L'AVEYRON. Oct. 10, 1950 [Oct. 22, 1949], No. 11810/52. Divided out of 692,807. Class 35. An eddy-current brake with the rotary member disposed between pole-pieces of the stationary member has magnetic projections on the rotor surrounded by closed conducting loops disposed transversely to the rotor axis and arranged so that they are free to expand radially outwards. As shown, rotor magnetic plates 18 extend between stator poles 1 and are surrounded by closed loops 20 of good conducting material, each loop embracing two plates 18.
Patent GB-139951-A (GB)
Title: Combined wristlet and string cutter
IPC: A47F13/04
Filed: 1919-05-13
Abstract: 139,951. Fowles, J. H. May 13, 1919. Attaching string-cutters to wrist. - A string-cutter comprising a blade c is removably secured to a plate a carried by straps &c. h for attachment to the wrist of the user. The shank of the blade is slotted and secured by screws and nuts to a tongue b bent at right-angles to the plate, which is curved and may be provided on the inner surface with a covering i of felt &c. The blade is curved and its point c<2> is directed towards the plate.
Patent GB-1532465-A (GB)
Title: Phosphors
IPC: C09K11/84
Filed: 1976-03-25
Abstract: 1532465 Luminescent materials and uses thereof GENERAL ELECTRIC CO 25 March 1976 [7 April 1975] 11955/76 Heading C4S  A luminescent material is of formula where M is Li or Na, w=y+z; x = 1 -(w+y+z)>0À3;y=0À05 to 0À25 and z=0À05 to 0À20, the material emitting green (520-560 nm.) under 2537 Š radiation. The narrow band emitting phosphor may be included in a fluorescent lamp and prepared by firing a starting mixture in a covered vessel at 300‹ to 500‹ C. for 1-2 hours. A detailed preparation included employs a second firing at 675‹ C. in the range 600-750‹ C. It has a zircon-like tetragonal crystal structure. Ce absorbs the 254 nm. radiation, produces a small emission band at 330 nm., and Tb emits in the visible. The 330 nm. emission would be absorbed by Eu<SP>+2</SP> and re-emitted as visible radiation in a typical 3 component lamp. Chromaticity of a phosphorethyl cellulose binder system is considered.