baber/WOPTO huggingface dataset:
Patent GB-579143-A (GB)
Title: Improvements in or relating to floodlight lamps and the like
IPC: F21V17/00
Filed: 1945-01-15
Abstract: 579,143. Projector lamps. REEVES, H. A. Jan. 15, 1945, No. 1159. [Class 75 (iv)] The casing 1 of a floodlight or similar lamp is formed with a cut-away portion 2 at the top of its forward edge to allow hot air to pass into a central bulge 4 in the periphery of a detachable ring 3 carrying the front glass and to escape through slots 6, 7.
Patent GB-909677-A (GB)
Title: Method of and apparatus for preparing a draw of textile fibres with aligned ends
Inventor: ANDERSON SAMUEL LESLIE
IPC: G01N33/36
Filed: 1959-01-13
Abstract: 909,677. Testing fibres. WOOL INDUSTRIES RESEARCH ASSOCIATION. Jan.13 1959, No. 1159/59. Drawings to Specification. Class 120 (3). A test draw of textile fibres with aligned ends is prepared by positioning previously prepared yarn sliver, with a protruding fringe of parted aligned fibre ends, between the folds of a sheet, or between a pair of sheets, of thermoplastic material and heat sealing the ends between the folds or sheets in a manner whereby a leading edge is formed and the thermoplastic material and adhering fibres may be subsequently withdrawn in a direction in line with the sliver. Barrier tape e.g. of polytetrafluoroethylene, may ensure adhesion of the thermoplastic material, only to the fibre ends. Specification 835,217 is referred to.
Patent GB-794767-A (GB)
Title: Improvements in or relating to calculating machines
Filed: 1956-01-12
Abstract: 794,767. Calculating-apparatus; transfer mechanism. ELECTRICITE DE FRANCESERVICE NATIONAL-DIRECTION DES ETUDES ET RECHERCHES. Jan. 12, 1956 [Jan. 13, 1955], No. 1164/56. Class 106 (1). A multiplying machine of the stepped barrel and pinion-type has transfer mechanism comprising for each order (other than the units) an additional stepped barrel which during a series of repeated additions is moved axially by one step for each transfer from the lower order, these transfer barrels then being rotated sequentially when in driving engagement with the totalizer to enter the stored transfers. The actuating barrels 2, Fig. 1, are differentially set along a common splined shaft 4 by means of grooved wheels 8 and are actually formed by groups of mutilated pinions. The selected mutilated pinions drive intermediate pinions 11 rotatable on a shaft 13 and constantly meshing with totalizer pinions 26, Fig. 2. The shaft 13 is mounted in a frame rockable by an eccentric 27, so as to move the pinions 11 into operative relationship with either the actuating barrels 2 or 'the similar transfer barrels 15 which are slidable on respective coaxial splined shafts 18. For each multiplication of a set multiplicand by a single-digit multiplier, a shaft 29, Fig. 4, is power driven through one revolution. Three discs 30-32 on the shaft 29 are formed with teeth on various parts of their peripheries and co-operate with three pinions 33-35. Initially, the pinion 33 is driven through one revolution and, through settable gearing not described, drives'the actuating shaft 4'through an appropriate number of revolutions. Then the pinion 34, which drives the eccentric 27 is rotated through half a revolution to rock the pinions 11 into engagement with the transfer barrels, after which the pinion 35 is rotated to rotate three further partly toothed gears which effect sequential rotation of the transfer barrel shafts 18. Finally, the pinion 34 is rotated through a further half-cycle so as to return the pinions 11 into co-operation with the actuating barrels. Transfer mechanism. At transfer, a pin 40, Fig. 3, on the intermediate pinion engages one of a series of pins 41 in a slide 42 to advance the slide one step and so, through mechanism not described, to shift the transfer barrel of the next higher order axially by one step. As described above, at the end of a multiplication operation, the transfers stored in this way are entered by sequential rotation of the transfer barrels. The pinions of the barrels and the intermediate pinions are formed with cooperating locking surfaces, or each pinion may be associated with a locking disc. Specification 777,800 is referred to.
Patent GB-370507-A (GB)
Title: Improvements in electrically heated water heaters
IPC: F24H1/18
Filed: 1931-01-14
Abstract: 370,507. Heating water by electricity. GENERAL ELECTRIC CO., Ltd., EAVES, E., and SMITH, F. C., Magnet House, Kingsway, London. Jan. 14, 1931, No. 1297. [Class 39 (iii).] A metal plate 13 carrying resistance wire 15 in insulated grooves and provided with incorrodible protection means is mounted over the hand hole of a water tank 1. The protecting means is a disc 12 of copper or copper alloy. A thermostat may be mounted on the centre of the plate, a groove 27 preventing the thermostat from being directly influenced by the resistance. A cover 21 encloses the plate in a recess which may be filled with lagging.
Patent GB-343691-A (GB)
Title: An improved process for the production of potassium sulphate and soda
Filed: 1930-01-15
Abstract: Sodium bicarbonate mother liquor, containing also ammonium carbonate or bicarbonate and chloride, and unconverted sodium chloride, is treated with calcium or strontium sulphate to produce ammonium sulphate and insoluble calcium or strontium carbonate which is separated.  Crude sylvinite and ammonia are introduced into the lye, cooled meanwhile to cause the deposit of a mixture of potassium chloride and glaserite, 3K2SO4, Na2 SO4, which on treatment with water reacts to give sodium chloride, and potassium sulphate which is separated.  The mother liquor, after removal of the free ammonia, and cooling to separate part of its ammonium chloride, is used for the production of sodium bicarbonate by the Solvay process, the mother liquor of which, at a temperature of about 30-40 DEG  C., is treated with calcium or strontium sulphate as above.  The carbon dioxide liberated is used in the process.  The potassium sulphate obtained may be used, together with nitric acid, for decomposing crude phosphate in known manner, the calcium sulphate formed being used in the above process, or it may be treated with strontia to give potassium hydroxide solution, and strontium sulphate which is used in the process, strontium carbonate formed being converted into oxide again.
Patent GB-157771-A (GB)
Title: Improvements in protective ducts for fire detecting conductors
IPC: G08B17/06
Filed: 1921-01-10
Abstract: 157,771. Garrison, W. H., (Assignee of Harsch, C. A.). April 11, 1914, [Convention date]. Alarms operated by fusible devices.-Relates to protective casings or ducts for electric firealarm conductors of the type comprising two conductors separated by insulating-material and fusible metal, the latter when melted penetrating the insulation and making electric connection between the two conductors. The form shown in Figs. 1 and 2 consists of a sheet-metal duct d, perforated at p to give access of heat to the fusible alarm conductor c and provided with a flange a having perforations s to receive screws or nails for attachment to walls &c. Ducts for use on floors &c. are formed of perforated tubes. The form shown in Figs. 9 and 10 is adapted also to form a picture rail, and is bent from thin sheet metal, both walls of the flange a being perforated at s to facilitate screwing or nailing to the wall &c.
Patent GB-103525-A (GB)
Title: Improvements in and relating to Suction Draught Apparatus for Furnaces and the like.
Inventor: TOUSSAINT HEINRICH
IPC: F23L17/00
Filed: 1916-01-31
Abstract: 103,525. Toussaint, H. Jan. 31, 1916 Chimneys.-A suction-draught screw fan b is arranged in the lower part of a chimney or uptake a on a shaft c mounted, in a bracket d, at the upper and lower end of which are collar and thrust bearings d<1>, d<2>, both removed from the path of the combustion gases. Overheating of the shaft c and of the upper bearing is further prevented by a cool current of air drawn up through the casing l by the fan b or by the chimney draught. As applied to marine boilers, the fan b is arranged at the junction of two uptakes with the lower end of the smoke stack, the shaft and the turbine or other motor being situated between the two uptakes and normally enclosed. The fan is driven by a motor e and a coupling n.
Patent GB-1273842-A (GB)
Title: An easy-opening end for a container
Filed: 1970-01-13
Abstract: 1,273,842. Easy opening can ends. NO BLIKK-SANNEM A.S. 13 Jan., 1970 [21 Jan., 1969], No. 1506/70. Heading BSD. A can end having a removable panel 1 defined by a score-line 2 is provided with a one piece sheet metal pull tab comprising flat panels 4 extending either side of a nose 11 projecting from a finger-ring 3, an end portion 4A of each panel being bonded to the removable panel so that, on raising the finger ring, un-bonded portions 4B of the flat panels bend and the nose is deflected downwardly to initiate rupture of the score-line. Bonding of the panels may be achieved by ultra-sonic welding, soldering or using bonding media such as plastics resins.
Patent GB-837352-A (GB)
Title: Improvements in or relating to jointing electric cables
Inventor: GILBERT PETER DEREK
IPC: H02G15/113
Filed: 1958-01-16
Abstract: Polyvinyl chloride compositions for use in a moisture-proof joint for P.V.C. covered cables (see Group XXXVI), comprise polyvinyl chloride dispersed in a plasticizer and contain a stabilizer and thixotropic agent.  The composition may be as follows, all parts being by weight: .Polyvinyl chloride.100 parts .Di-octyl phthalate plasticizer.40 parts .Tri-toluol phosphate plasticizer.5 parts .Lead carbonate (stabilizer).7 parts .Pyrogenic silicon dioxide.3 or 4 parts .(Thixotropic agent) The pyrogenic silicon dioxide, a highly dispersed silicon dioxide, produced at a very high temperature, is present in 3 or 4 parts according to whether semi-liquid material for coating tapes or a putty-like composition for direct application to the joint, is required.  A temperature of about 150 DEG  C. is required for complete gelation of the composition but at about 120 DEG  C. a solid state with lower strength characteristics, may be obtained.  The required temperature for gelation results from produced by the reaction upon polymerisation of polyester or epoxy resin mixtures cast round the P.V.C. composition during manufacture of the cable joint.
Patent GB-1004429-A (GB)
Title: Method of producing a strong threaded anchorage in a workpiece and ferrule suitable for use therein
Inventor: KAHN SIMON STIEFEL
IPC: F16B37/12
Filed: 1964-01-14
Abstract: 1,004,429. Screw-sockets; nuts. GENERAL AMERICAN TRANSPORTATION CORPORATION. Jan. 14, 1964, No. 1556/64. Addition to 934,020. Heading F2H. [Also in Division B3] A method of producing a threaded anchorage in a workpiece is substantially the same as that disclosed in the parent Specification in which a relatively hard metal ferrule is swaged into a relatively soft metal but the claim is directed to the use of a ferrule having a prehardened outer casing and a soft core which minimises the longitudinal creep of the ferrule during swaging. An externally longitudinally serrated low carbon steel, e.g. S.A.E. 1010, ferrule 10, slotted at 12, having a soft core and a casehardened outside, produced for example by using a nitriding agent such as potassium ferrocyanide, is cadmium plated. The ferrule which is shorter in length than the depth of the workpiece bore, is frictionally supported on a shouldered mandrel, e.g. of steel, and forced and positioned thereby into a bore 31 of a soft workpiece 30, e.g. of aluminium, so that the serrations are embedded in the wall thereof. The ferrule is finally swaged by a thread swaging tap which forms a thread therein, the cadmium plating serving as a lubricant and swages the ferrule and workpiece together and produces limited longitudinal flow therein such that the ferrule substantially fills the bore of the workpiece which may be " blind " or " close-ended ".
Patent GB-1494154-A (GB)
Title: Magnetic separators
IPC: B03C1/03
Filed: 1976-01-15
Abstract: 1494154 Magnetic separators READINGS OF LISMORE PTY Ltd 15 Jan 1976 [5 Feb 1975] 01577/76 Heading B2J  Apparatus for separating magnetic material from non-magnetic material in a slurry comprises a rotor 5 on an upright axle 7, the rotor having near its perimeter through passages 14 which are separated from each other by laminated magnetic spacers and are arranged in a circular array into which the slurry is fed from a tank 1 via pipes 2. As the rotor 5 rotates the passages 14 pass through magnetic fields from polepieces 26 which are energised so that two north poles are followed by two south poles and so on. When a passage 14 is between two unlike poles a strong field is set up between the spacers defining that passage and magnetic particles therefore adhere to the spacers. While non-magnetic particles pass through into a launder 53 for collection at 32. When the passage 14 is next between similar poles the magnetic particles are released and washed away by water into different launders connected to a different collection tank 33.
Patent GB-780007-A (GB)
Title: Improvements in or relating to cobalt-iron-chromium alloys
Inventor: HARRIS GEOFFREY THOMAS
IPC: C22C19/07
Filed: 1954-01-19
Abstract: Heat resisting alloys have compositions within the following range: C 0.2-0.6 per cent, Mn 0.5-1.5 per cent, Si 0.3-0.6 per cent, Co 45.0-70.0 per cent, Cr 15.0-22.0 per cent, W 2.0-6.0 per cent, Mo 2.0-6.0 per cent, Nb and/or Ta 1.0-6.0 per cent, B 0-0.05 per cent, N 0-0.1 per cent, Ce 0-1.0 per cent, Fe, and the usual impurities, the remainder.  The alloy may also contain one or more of Al, Be, Ti, V, Ca and Mg up to 1.0 per cent in total.  The alloy may be solution treated in the range 1150 DEG C.-1300 DEG C. and then warm worked in the range 500 DEG C.-900 DEG C., e.g. to the extent of 3-15 per cent reduction in thickness.  The Provisional Specification describes also alloys within the following range: C 0.2-1.0 per cent, Mn 0.2-2.0 per cent, Si 0.3-2.0 per cent, Co 40.0-70.0 per cent, Cr 15.0-25.0 per cent, W 1.0-6.0 per cent, Mo 1.0-6.0 per cent, Nb and/or Ta 1.0-6.0 per cent, B 0-0.1 per cent, N 0-0.2 per cent, Ce 0-1.0 per cent, Fe, and impurities, the remainder with or without one or more of Al, Be, Ti, V, Ca, Mg up to 1.0 per cent in total.
Patent GB-142766-A (GB)
Title: An improved boot tree
IPC: A43D3/14
Filed: 1920-01-20
Abstract: 142,766. Edwards, E. W. Jan. 20, 1920. Trees.-In boot trees of the kind described in Specification 18588/05, the ratchet e, Fig. 1, for locking the parallel-motion extension device a, a<1>, b, b<1> is placed on the end of the link a remote from the heel, and the locking is done by a pivoted link e'. In a modification, Fig. 4, the locking is done by a pin on the inside of the disk f<2>, Fig. 5, entering one of a series of holes in the parts a, a' urged by a spring g.
Patent GB-763784-A (GB)
Title: Process for the manufacture of alphatocopherol
IPC: C07D311/72
Filed: 1955-01-20
Abstract: a -Tocopherol is obtained by condensing phytyl chloride with trimethyl-hydroquinone in the presence of a boron trifluoride catalyst, e.g. boron trifluoride diethyl etherate.  Preferably the catalyst is used in a quantity sufficient to provide from about 0.03 mols. to 0.15 mols. of boron trifluoride per mol. of phytyl chloride and the condensation is carried out in the temperature range 50-85 DEG  C.
Patent GB-104869-A (GB)
IPC: G03B1/38
Filed: 1917-02-03
Abstract: 104,869. Menard, H. C. March 16, 1916, [Convention date]. Intermittent toothed gearing.-Relates to devices for converting continuous rotary motion into intermittent rotary motion, applicable for use in apparatus for taking or projecting kinematographic views. A pin-disk, acting intermittently on a Maltese-cross, is driven with variable velocity ratio from a continuously rotating shaft, the pin-disk making one revolution for each revolution of the shaft. The invention is shown applied to a kinematograph, the shaft a of which is rotated by hand or an electro-motor and drives the shutter directly or by means of multiplying. gear. The pin b on the disk c is caused to describe an angle of 90 degrees during its engagement with the cross, whilst using a shutter having alternately opaque and open sectors each of an angle of 60 degrees. This is effected by driving the pin-disk c with variable velocity ratio from the shaft a, so that the pin b, in driving the cross, moves through 90 degrees, whilst the shaft a rotates through 60 degrees, and during the stoppage of the cross, moves through 270 degrees whilst the shaft rotates through 300 degree. The driving shaft a, Figs. 3 and 4, carries a disk h provided with a slot i, in which engages a pin b<1> on the disk c, the pivot of which is not co-axial with the shaft a. The disk c also carries a pin b. which drives the Maltese-cross. The casing enclosing the gearing may contain an oil bath.
Patent GB-1156289-A (GB)
Title: Irrigation Spray Line
Inventor: BLAIR JAMES
IPC: A01G25/09
Filed: 1968-01-12
Abstract: 1,156,289. Irrigation sprays. J. BLAIR. 12 Jan., 1968, No. 1780/68. Heading A1D. An irrigation spray device which moves transversely of its length is fabricated from one or more sections 10 each of which comprises liquid carrying pipes 11, 12, 13, 15 with spray means 14 on one of these pipes, usually the trailing side of the device, and ground engaging wheels 17 supporting the sections. The liquid is supplied through the hydrant 19 and valve 25. The device rotates round the hydrant and is driven by internal combustion engine 21 or by a ratchet and pawl system 40 and 42. In this system a weight responsive valve 43 allows pipe 12 to fill and hence its weight tilts the framework and operates the ratchet. Pipe 13 then fills and as pipe 12 empties the framework becomes horizontal. A trailing stake 45 prevents backward movement. An alternative method of locomotion is the bucket arrangement 50, Fig. 6, attached to wheels 17 and using water from an off-take 51 and rejecting the water through channel 53. When transferring the structure from one position to another a stake may be driven through the loop 28 on the distal end enabling the structure to be rotated around the stake. A spray device (not shown) on the distal end allows spraying beyond the end of the structure. The whole structure may be lengthened by coupling in more of the basic sections 10. Alternatively the connection of the device to the hydrant 19 may be a flexible hose to allow transverse movement of the device.
Patent GB-413365-A (GB)
Title: Improvements in or relating to inking mechanism for use in printing machines
IPC: B41F31/08
Filed: 1933-01-19
Abstract: 413,365. Printing machines. MILLS, T. J., QUICK, C. G., and BALL, D. A., 109, Borough Road, London. Jan. 19, 1933, No. 1816. [Class 100 (ii).] Inking-apparatus.-In an ink-feeding mechanism for printing-machines including a pump system for forcing ink from a receptacle containing a float controlling an inlet valve to an ink-distributing arrangement, means are provided for positively advancing the ink in the receptacle to the pump system. The means may take the form of a reciprocable impeller device or a screw conveyer, which serves to advance the ink after delivery by the supply pipe so as to ensure that no accumulation of ink takes place below the float, but that it is fed to the pump plungers at a rate which is dependent upon the press speed. The receptacle 1 receives ink from a pipe 5, which is provided with radial ports 6 controlled by a float 9<1>, and the outlet 3 leads to the pumps 2 which in turn communicate with ports 4 in a pump rail 4<1>, through which the ink passes to the distributing ducts and drum. The ink is positively advanced to the passage 3 by a plate 10 hinged to a rod 12, its limits of movement relatively to the rod being determined by abutments 13, 14. The rod 12 is reciprocated in the casing 1, by a lever 16 pivoted to a fixed bracket 18 and connected at one end by a slot to a pin 20 carried by the rod 12, and at the other end to a shaft 27 reciprocated from a driven part of the printing-machine, conveniently the shaft of one of the vibratory ink rollers. The pin 20 is guided by a slot 22 in a fixed bracket 23, and in order to permit the rail 41 and the attached parts to move to and from the distributing-drum, without disconnecting the pin 20 from the lever 16, the pin is extended beyond the lever to allow the necessary relative movement. In operation, as the rod 12 moves to the right, the plate 10 takes up the position shown and displaces ink to the passage 3, which as the rod moves to the left, the plate rotates to a position parallel to the rod 12 and so passes freely through the ink.
Patent GB-561138-A (GB)
Title: Improvements in and relating to wrenches
IPC: B25B7/12
Filed: 1942-02-13
Abstract: 561,138. Wrenches. PETERSEN, W. Feb. 13,1942, No. 1941. [Class 61 (iii)] A hand grip wrench comprises a handle member 1 carrying a fixed jaw 2, a movable jaw 9 pivoted to the handle member at 5, an operating lever 12 pivoted at 11 to the movable jaw 9 and a toggle arm 16 pivoted at 14 to the operating lever 12 and having a transverse enlargement 17 at its rear end engaging an adjustable abutment screw 18 threading in the end of the handle member 1, the toggle arm being guided by a slotted formation 27 at the end of the handle and held up against the screw 18 by a spring 21 hitched to the movable jaw 9.
Patent GB-1280283-A (GB)
Title: Gas bearing
IPC: F16C32/06
Filed: 1971-01-14
Abstract: 1280283 Fluid bearings HITACHI Ltd 14 Jan 1971 [21 Jan 1970] 1966/71 Heading F2A A hydrostatic journal bearing has fluid supplied to the bearing through a plurality of nozzle elements 12 spaced angularly in relation to each other along the circumference of the shaft 1, the surface of each element which faces the shaft having a recessed pocket 13 and an orifice 12b through which gas is fed under pressure from an inlet 12a in the element to the pocket, the surface of the nozzle being coplanar with the inner surface of the sleeve 4 journalling the shaft. The inlet 12a communicates with a source of pressurized gas. The nozzle elements may be circular in section and have a notch 14 around the outside of the end face which cooperates with the wall of the bore 6 in the sleeve in which the element is mounted to form a groove 15 which is in communication with the pocket 13 to provide an additional pocket for bearing fluid.
Patent GB-1454981-A (GB)
Title: Polymerisation process
IPC: C08G63/82
Filed: 1975-01-16
Abstract: 1454981 Polymerizing lactones INTEROX 16 Jan 1975 [18 Jan 1974] 1999/75 Heading C3R Lactones are polymerized by contact with a catalytic quantity of a complex of tetrahydrofuran with an organo aluminium compound of formula where n and m are each from 0 to 10, the sum of n + m being at least 1; R, R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> are each a hydrocarbon radical having 1 to 18 carbon atoms; X and X<SP>1</SP> are each hydrogen, chlorine or a hydrocarbon radical having 1 to 18 carbon atoms and R<SP>4</SP> is a divalent hydrocarbon radical having 2 to 20 carbon atoms. In examples epsilon-caprolactone is polymerized in various solvents by contact with a complex of tetrahydrofuran and a compound obtained from triisobutyl aluminium and butanediol.