baber/WOPTO huggingface dataset:
Patent GB-1304473-A (GB)
IPC: G11C13/06
Filed: 1971-06-09
Abstract: 1304473 Data store; optical playback of magnetic records COMPAGNIE INTERNATIONALE POUR L'INFORMATIQUE 9 June 1971 [10 June 1970] 19724/71 Headings G4C and G5R [Also in Division H3] In a Kerr magneto-optic readout system plane polarized light is directed on to a magnetized metallic reflector 5, Fig. 1, and then on to a metallic ferro-magnetic storage device 1 which is to be read. Rotation of polarization due to spurious effects, e.g. Fresnel elliptization, are thus cancelled out, the effects at the reflector and storage device being opposite. The magnetization of the reflector 5 is controlled by an A.C. field set up by coil 9, and the magnetization is switched from one saturated state to the other in phase with current from source 13. After reflection from the storage device 1 the light passes through an analyser 14 to photodetector 8, and the resulting electrical signal on lead 11 is combined with a signal from source 13 in phase detector 14. The storage device 1 can store a "1" or a "0" in the directions shown by the arrows in the device of Fig. 1; when a "0" is read the output of the photodetector is antiphase to the current source 13, so that phase detector 14 gives a low output. When a "1" is read, the phase detector output is high. The light beam used, which may be from a laser, is incident on reflector 5 via polarizer 3; the plane of incidence P1 at the reflector is orthogonal to the plane of incidence P2 at the storage device. The magnetization of the storage device is shown perpendicular to plane P2, i.e. the transverse Kerr effect is used, but the longitudinal effect may also be used. The light beam may be split into individual rays, Fig. 2 (not shown), by a fly's eye lens, or may be scanned by electro-optic or acousto-optic cells. With multiple rays, corresponding multiple photodetectors are used. The storage device may be a plate, as shown in Fig. 1, or a -moving medium such as a disc, drum or tape. Moving devices.-In Fig. 3 a magnetic storage disc rotates in the direction of arrow 202. Several rays 11 strike the disc, one ray for each information track on the disc, and a column of photodetectors 8, each with its own analyser 4, gives signals which pass to phase detector 14 as before. In a modification, Fig. 4, an elongated reflector 205 is used with several distinct magnetizing coils 9. This gives rays 209 equal in number to the moving storage sites to be read. The rays reflected from the storage medium pass through a common analyser 204 to photodetector array 208, and are then treated at phase detectors 214 as above. Gates 207 control the passage of the current from source 13 to the coils so that only selected memory sites are read. Gates may also be used on the photodetector outputs, so that only one phase detector is needed.
Patent GB-638716-A (GB)
Title: Improvements in or relating to the cement-lasting of shoes
IPC: A43D21/12
Filed: 1947-07-24
Abstract: 638,716. Cement-lasting machines for footwear. BRITISH UNITED SHOE MACHINERY CO., Ltd. July 24, 1947, No. 19912. Convention date, April 12, 1940. [Class 17 (i)] Cement between an overlasted margin of a shoe upper and a shoe bottom member, e.g. an insole, is activated in situ in a cement lasting machine by passage of a high frequency electric current between electrodes, one of which is constituted by a metal toe plate in the last and the other by toe-end wiper plates. The invention is described as applied to a machine as in Specification 540,174 for cement-lasting the toe portion of a shoe assembled on a last having a metal toe plate wherein the shoe is presented bottom up and held between an abutment 12, which positions the shoe heightwise in relation to grippers 51 and wiper plates 90, and a toe rest 42 raised to operative position by depression of a treadle. Work locating pins 34 on a casting 22 extend through a plate 12 of insulating material detachably secured to the casting 22 and through apertures in the insole I into metal sockets 10 in the metal toe plate P of the last L. The casting 22 is secured to and insulated from a plunger 14 vertically adjustable in the machine frame 16, and the high tension pole of a source of high-frequency current is connected to it. During the power operated lasting stage of the machine the upper is drawn upwards and outwards by the grippers the toe end of the insole being held down on the last by a curved member 70 attached by a plug 72 to a carrier 74 having its lower end bevelled. The carrier 74 is pivoted to a yoke 78 pivoted to the plunger 14 and engaged by a bar 102 operated by a cam arm 108 so that the member 70 may be raised. The wipers 90 upwipe the upper and last its margin on to the adhesively coated margin of the insole, the wipers in their inward movement engaging the bevelled end of the member 70 which is lifted against a spring 82 and which acts as a retarder. The machine comes to rest with the wipers 90 fully advanced and lowered to press the margin of the upper against the insole. A high frequency field is then set up between the plate 12 and the wipers 90 which are connected to an earthed pole of the oscillator or to the frame of the machine, and when the cement is activated the field is turned off. When the upper U and insole T are secured the cycle of operations is completed to lower the toe rest 42 and withdraw the wipers 90. Specification 520,194 also is referred to.
Patent GB-516737-A (GB)
Title: Improvements in or relating to electron discharge devices for use in television and like systems
IPC: H01J31/30
Filed: 1938-07-06
Abstract: 516,737. Cathode-ray tubes. FERNSEH AKT.-GES. July 6, 1938, No. 19985. Convention date, July 6, 1937. Drawings to Specification. [Class 39 (i)] The capacity of the mosaic elements of a double-sided storage electrode to the signal electrode is made so small that the photoelectric emission from an element subject to an illumination of approximately a thirtieth of the maximum brightness during the frame period charges the element so that the secondary electron current leaving it at the commencement of scanning is not greater than half the electron current incident thereon. Mica ¢ mm. in thickness is necessary between the element and the signal electrode. The emission of secondary electrons which partially discharge neighbouring elements is reduced to a minimum. The velocity of the scanning beam is adjusted to a value just below that at which the secondary-emission ratio becomes unity for the second time. The elements are preferably only partially discharged by the beam so that the secondary emission never exceeds half the beam current. The Specification as open to inspection under Sect. 91 includes single-sided mosaics. This subject-matter does not appear in the Specification as accepted.
Patent GB-238872-A (GB)
Title: Improvements in or relating to apparatus for blowing hollow glass bodies
IPC: C03B9/38
Filed: 1925-08-08
Abstract: 238,872. Naamlooze Vennootschap Internationaal Octrooibureau, (Assignees of Naamlooze Vennootschap Philips' Gloeilampenfabrieken). Aug. 20, 1924, [Convention date]. Blowing.-A pasted mould is cooled both by circulating water through passages formed in its walls and by moistening the pasted inner surface. The mould is made in two parts 4 carried by arms 6 which are pivoted on a vertical column 3. A rod 14, which is reciprocated vertically by a cam 18, oscillates a shaft 20 to move the arms 6 to open or close the mould. Passages 37 are formed in the body of each mould half, and a cooling fluid such as water, is circulated through these passages between nipples 38 and 39. In order to moisten the inner surface of the mould, it is sprayed with water which is blown through a nozzle 41 by means of a jet of compressed air. A double valve supplies compressed air and water to the nozzle, and means may be provided for causing the air jet to begin earlier and to continue longer than the water jet in order to prevent large drops of water from running into the mould.
Patent GB-765752-A (GB)
Title: Process for the manufacture of a solvent
Inventor: JENSEN HANS CHRISTIAN HENRY
IPC: C07C7/04
Filed: 1954-07-08
Abstract: A solvent rich in p-cymene is obtained by distilling the steam distillate obtained from the manufacture of sulphurized terpene to obtain a distilled product having a boiling point of approximately 180 DEG  C.  The sulphurized terpene may be obtained by sulphurizing a commercial dipentene according to the method described in Specifications 688,293, 703,631, 750,094, 761,579 and 761,997. The direct steam distillates contain in addition to the p-cymene up to 10 per cent of sulphur and this is reduced by re-running in a distillation column which may be a conventional vacuum or atmospheric pipe-still.  The remaining sulphur compounds may be removed by the Doctor process, the copper-chloride sweetening process, or by a caustic soda wash.  The product may be stabilized by the addition of 0.01 to 0.05 per cent of an antioxidant such as N,N1-di-secondary butyl paraphenylene diamine, 2.4-di-methyl-6-tertiary butyl phenol or 2 : 6-di-tertiary butyl-4-methyl phenol.
Patent GB-774911-A (GB)
Title: Improvements in or relating to snap action electric switches
IPC: H01H37/54
Filed: 1954-07-08
Abstract: 774,911. Thermal switches; actuation of switches. TAYLOR, E. H. July 8, 1955 [July 8, 1954], No. 20020/54. Class 38(5)  An electric switch comprises a multilegged snap action spring blade similar to that in Specification 657,434 and means for varying the buckling of the blade. As shown the blade is bimetallic and the bridge part 4 which connects the two outer legs is rigidly mounted at its two ends 8. The centre 24 of the bridge part is depressed by a threaded rod 13 on rotation of a knob 26 thereby varying the buckling of the blade and hence the temperature at which a moving contact 5 carried by the middle leg of the blade snaps into or out of engagement with a fixed contact. Modifications are described in which the middle of the bridge part is held and the outer ends move. If the blade is not bimetallic but merely resilient metal, the means acting on the bridge part to effect the variation in buckling move sufficiently to operate the switch. Specification 622,781 also is referred to.
Patent GB-247512-A (GB)
Title: Improvements in shift mechanism for typewriting machines
IPC: B41J5/20
Filed: 1925-08-10
Abstract: 247,512. Royal Typewriter Co., Inc., (Assignees of Myers, L. C.). Feb. 12, 1925, [Convention date]. Carriage-shift mechanism; shift-key actions.-In shift mechanism having the shift-key lever so arranged as to lock the carriage in the normal position, a depending arm on the shift frame or support is operated by a shift-key lever and co-operates therewith to lock the shift frame or support in normal position. In the portable machine shown in the Figure. the carriage F is movable obliquely by a shift frame comprising a member H, a rock-shaft K, and a lug P co-operating with stop-screws N, O to limit the shift movements. The shift-key levers are secured to a shaft 10 and the left-hand lever 12 is provided with upward and rearward extensions 14, 15, The extension 14 is connected to a link 6 having a fork 5 engaging a pin 4 on a depending arm 1 on the rock-shaft. The extension 15 has a lug 16 which normally locks the shift frame by engaging a screw 3 on the arm 1. When either shift-key is depressed, the extension 15 releases the arm before the link is effective to rock the arm, since the end of the extension 15 moves more quickly than the end of the extension 14 ; moreover there may be lost motion between the link 6 and the pin 4 or the extension 14. Key locks.-A locking-key 20, pivoted on the shift-key lever 12, is formed with a locking- shoulder 24 for engaging a pin 25 on the framework. On touching either of the main shiftkeys, the locking-key is released and returned to normal position by a spring 22.
Patent GB-459856-A (GB)
Title: Blowpipe
IPC: F23D14/82
Filed: 1935-07-15
Abstract: 459,856. Blowpipe burners. LINDE AIR PRODUCTS CO., 30, East 42nd Street, New York, U.S.A.-(Assignees of Cowin, H. W. ; 740, Oak Avenue, Westfield, New Jersey, U.S.A.) July 15, 1935, No. 20127. Convention date, Aug. 1, 1934. [Class 75 (i)] A blowpipe burner comprises a handle 10 having oxygen and fuel-gas regulating valves 18, 20 fitted in a block 17 at its forward end and an oxygen-air injector 36 fitted in a block 15 at its rear end, a gas mixer 28 seated in the block 17, and, threaded on the mixer 28, a stem 11 which is secured to the block 17 by a coupling 12 and carries the burner nozzle 45. The oxygen and acetylene supply conduits 13, 14 extend through the handle 10 to ducts 19, 21 in the block 17. The oxygen passes through the valve 18 and a tube 34 to the injector 36 where it becomes mixed with air entering through ports 41. The mixture flows through a tube 43 and a bore 44 in the block 17 to an axial bore 30 in the mixer 28. The acetylene, which is supplied at a lower pressure than the oxygen, passes through the valve 20 by a duct 26 to an annular chamber 31 between the mixer 28 and block 17 and then through bores 32 in the mixer to mix with the oxygen-air mixture in the cavity between the mixer and the stem. Alternatively the fuel gas may be supplied under pressure to the pipe 13 and oxygen at a lower pressure to the pipe 14. Specification 405,285 is referred to.
Patent GB-247470-A (GB)
Title: Jellying device for meat press
IPC: A22C7/00
Filed: 1925-08-11
Abstract: 247,470. Haworth, R., and Crampton & Co., Ltd., J. Aug. 11, 1925. Heating and cooking vessels.-A meat press is provided with an accessory device which enables the pressed meat to be coated with jelly. As shown in Fig. 2, the device comprises a liner 1 which fits within and is spaced from the meat press wall 2, and the plunger 4 is adapted to slide within the liner 1. The liner has a flange of rim 1<a> which spaces it from the wall 2, the flange being preferably in the form of a gutter to collect overflowing fat. After the meat is pressed, the liner 1 is removed by the handles 5 and jelly is poured into the space between the meat and the wall 2. The jellied meat may be removed by raising the false bottom 6 in the usual manner. In a modification, the liner 1 is flanged at the top and bottom edges.
Patent GB-1419055-A (GB)
Title: Glueing of wood or artefacts comprising wood fibre to a composite product comprising pvc and cellulosic powder
IPC: C08L27/06
Filed: 1974-05-08
Abstract: 1419055 Priming wood/pvc composites SONESSON PLAST AB 8 May 1974 [14 May 1973] 20214/74 Heading B2E [Also in Division B5] A composite product comprising p.v.c. and cellulosic (e.g. wood) powder is primed with a composition consisting of a thermoplastic adhesive in a solvent, and anhydrous silica of particle size #10<SP>-6</SP>mm in suspension in the adhesive solution, the ratio of thermoplastic adhesive to silica being 0.5-2.5:1, so that the composite product may be glued by a thermosetting resin (e.g. urea, melamine or phenolic resin) to wood or an artefact comprising wood fibre. A suitable thermoplastic adhesive is a copolymer of vinyl chloride, vinyl acetate, and dicarboxylic acid (84/15/1), which may be applied by spraying or brushing onto an "endless" extruded composite product.
Patent GB-932903-A (GB)
Title: Regeneration of chemical plating baths
IPC: C23C18/16
Filed: 1962-05-25
Abstract: Regeneration of a chemical plating bath containing a boron-hydrogen compound as a reducing agent is achieved by adding to an exhausted bath liquid at least one water-soluble alkaline earth metal compound, preferably MgCl2, and removing the precipitate formed by filtration. The boron-hydrogen compound, more particularly a boron hydride, has 1 to 4 hydrogen atoms linked directly to boron, e.g. sodium borohydride.  Water-soluble alkaline earth metal compounds which may, for example, be used, comprise MgCl2, MgSO4, MgAc, CaCl2, SrCl2, BaCl2; and they may be added in the solid or concentrated aqueous solution form.  The regenerating process is performed by continuously withdrawing from the bath part of the liquid, treating it according to the invention, then adding metal salt, complex former and/or reducing agent, to re-establish the initial content of these components, and subsequently feeding it back into the plating bath. The precipitate formed comprises alkali metal borate and precipitated hydroxide, e.g. Mg(OH)2.  Plating solutions named contain nickel, cobalt and boron salts for deposition of, for example, Ni-B and Co-Ni-B alloys.  Substrates treated include polyglycol terephthalate, copper, brass and iron.
Patent GB-152166-A (GB)
Title: Improvements in speed indicators
IPC: G01P3/28
Filed: 1919-08-18
Abstract: 152,166. Wilkinson, W. B. Aug. 18. 1919. Fluid speed indicators of the kind wherein pressure produced by a vehicle &c. driven pump is communicated to a pressure gauge consist of a cylinder a having mounted therein a piston b, the rod c of which passes through a stuffing-box e<1> and is connected to any reciprocating part of the mechanism the speed of which is to be determined. Secured by screwed sleeves i<1>, i<2> to ports g<1>, g<2> at the ends of the cylinder are tubes k connected by a T-piece l to a tube m communicating with a pressure gauge n. Mounted above the ports g<1>, g<2> and in the tube m are coned nipples o<1>, o<2>, o<3>. Before use, the device is filled with oil or other liquid from a tank r<1> connected by a tap r to the tube m, cocks s<1>, s<2> being provided to allow the escape of air during filling. A water jacket t, having inlet tubes u<1>, u<2>, is provided for the cylinder.
Patent GB-478495-A (GB)
Title: An improved roof tile
IPC: E04D1/16
Filed: 1937-07-23
Abstract: 478,495. Roofing-tiles. KETLEY, F. July 23, 1937, No. 20427. [Class 87 (i)] A roofmg - tile having its upper surface cambered transversely and longitudinally is provided with an under surface 2 which is flat transversely except adjacent the lower end 3 where it is curved transversely ; the curved and flat portions may be connected by an inclined portion 4. The usual hanging nibs 5 and nail holes 6 are provided.
Patent GB-1432505-A (GB)
Title: Transfer printing process
IPC: C09B11/04
Filed: 1974-05-09
Abstract: 1432505 Transfer printing BAYER AG 9 May 1974 [10 May 1973 22 May 1973] 20444/ 74 Heading D1B Textile materials which can be dyed with basic dyes preferably acid-modified textile fibres are transfer printed using a sublimable carbinol base derivative of a cationic dye of formula in which A, B and D are independently aryl or heterocyclic radicals, B may alternatively be hydrogen or B and/or M conjointly with A and E in combination with D respectively forms the remaining members of a heterocyclic ring, X is alkyl, benzoyl, aralkyl, cycloalkyl or aryl radical, E is a direct bond or an =N- alkyl group, L is a methine group which is optionally substituted by an alkyl, cyano, or alkoxycarbonyl group or represents a nitrogen atom, M is the same as L and n is 0 or 1. The printing inks used comprise (a) a compound as above which sublimes at 160-240C, (b) an organic solvent (c) a resin soluble in the solvent (b). Substrates printed are polyacrylonitrile, acid modified polyesters and polyamides.
Patent GB-1471303-A (GB)
Title: 3xtruding multi-component glue
IPC: F04B13/02
Filed: 1974-05-09
Abstract: 1471303 Reciprocating pumps ALENCO EGNELL AB 9 May 1974 [10 May 1973] 20445/74 Heading F1A [Also in Division B8] Apparatus for supplying two or more components, e.g. resin and hardener, of a multicomponent material, e.g. thermosetting adhesive, comprises pumping cylinders 11, 12, Fig. 1, each receiving a respective material component under pressure from a supply pump 3, 4 on an associated reservoir 1, 2 via a valve 7, 8 controlled, e.g. by a pneumatic cylinder 15, to connect cylinders 11, 12 to pumps 3, 4 for the charging stroke and to extrusion nozzles 18, 19 for the discharge stroke. In Fig. 1, the pistons of cylinders 11, 12 are actuated by pneumatic motors 13, 14. Pressure gauges 20 are provided. In Fig. 3 (not shown), the motors 13, 14 are omitted, and the material components are supplied under pressure to one side of the pumping cylinder pistons and then to the other side, so that each charge of component is discharged by the entry of the next charge, (see Division B8). The pumping cylinders of Fig. 1, each comprise a cylinder 40, Fig. 5, held in a releasable clamp 41 and having its piston connected by rods 45, 46 to the pneumatic motor piston in motor cylinder 44. Clamp 41 is releasable by lever 42 for adjusting the axial position of cylinder 40 relative to cylinder 44 to vary the delivery, graduations on cylinder 40 indicating the delivery setting. The delivery rate also can be adjusted by varying the compressed air supply pressure to the pneumatic motor.
Patent GB-1475656-A (GB)
Title: Method of etching materials containing silicon
IPC: C01B21/068
Filed: 1975-05-15
Abstract: 1475656 Etching INTERNATIONAL BUSINESS MACHINES CORP 15 May 1975 [28 May 1974] 20475/75 Heading B6J Silicon-containing materials, such as silicon, silicon dioxide, silicon nitride or silicon oxynitride, are etched with a hot melt made up of phosphorous pentoxide and orthophosphoric acid, the melt containing at least 12% by weight of phosphorus pentoxide. A resist mask comprises silicon, silicon dioxide or silicon nitride, on a silicon-containing layer to be etched, the mask and the layer being of different materials, and the etching temperature being such that the etchant etches the mask also, but at a slower rate than it etches the layer, so that small amounts of the mask material undesirably present on the areas to be etched are removed.
Patent GB-165848-A (GB)
Title: Improvements relating to ordnance
IPC: F41A13/04
Filed: 1919-08-20
Abstract: 165,848. Dawson, Sir A. T., and Horne, J. Aug. 20, 1919. Ordnance, preventing erosion of; lubricating. -- Relates 4 to devices for spraying powdered graphite, either dry or mixed with water or oil, from a container into the bore of a gun through a compressed-air nozzle working on the injector principle. The invention consists primarily in a control valve for regulating the supply of compressed air to the air nozzle, which valve also serves to admit air to, or cut it off from the upper portion of the graphite container. In the form shown, the graphite container A is connected to a pivot K<1> by an arm K, and the device is mounted on the breech face of the gun so that the discharging position of the nozzle C is in the axis of the gun. Air enters by the supply pipe D and, on the control valve E being lifted by a handle F, passes through the fixed axis pin K' to an annular port k and thence by a passage k<1> in the arm K to an annular chamber k<2> below the graphite-container A. The injector nozzle B is forced back against its spring by the compressed air and admits the air to the upper end of the container A through the pipe Ax. The air is also admitted to the axial passage of the nozzle B, and the nozzle acts a.s an injector and sprays the graphite through the spraying-nozzle C. The swinging portion can be locked in either the operative or inoperative positions, but the valve E can only be lifted when the nozzle C is directed into the breech of the gun. An alternative form of the device is described, which is portable and has a long spraying nozzle adapted to project into the chamber as far as the lead to the rifling.