baber/WOPTO huggingface dataset:
Patent GB-495143-A (GB)
Title: Improved manufacture of thorium oxide and contact masses containing it
IPC: C01F15/00
Filed: 1937-10-29
Abstract: Highly reactive thorium oxide is obtained by heating complex salts containing thorium oxalate at a temperature of about 285-450 DEG  C. for such a time that the oxide has become capable of dissolving in 3-4 times its weight of boiling nitric acid of sp. gr. 1,4 in a period not exceeding a few hours.  Tables are given showing heating periods necessary at different temperatures to produce the oxide in its most reactive form.  The period necessary decreases with increasing temperature, but " ageing " of the oxide occurs more quickly at high temperatures and the reactivity of the oxide decreases with increasing temperature.  Suitable complex salts are obtained by dissolving thorium oxalate in a solution of ammonium oxalate or carbonate or sodium carbonate, and evaporating.  Catalysts are obtained by impregnating pumice, silica gel, bentonite, fuller's earth, clay, xerogels of the oxyhydrates, &c., with a solution of the complex salt, drying, sifting if desired, and heating under the conditions described above.  Specification 402,010 is referred to. Reference is made to a known process for manufacturing thorium nitrate from monazite sand, wherein thorium oxalate is produced, purified by repeated dissolution in sodium carbonate solution and precipitation by hydrochloric acid, and dissolved in ammonium carbonate solution, thorium hydroxide being then precipitated by ammonia.  The hydroxide, after purification, is dissolved in nitric acid.
Patent GB-291120-A (GB)
Title: Treatment of threads of artificial silk and other materials, to make them act like wool
IPC: D01D4/02
Filed: 1926-11-24
Abstract: 291,120. Scott, E. K. Nov. 24, 1926. Fibres, crimping and curling; fibres, roughening mechanically.-To produce an artificial textile material resembling wool in that it will full, mill and felt, the filaments composed of materials employed in the manufacture of artificial silk &c. and extended in a similar manner, are subjected while in a more or less plastic condition to a mechanical treatment which will produce curls, spirals or crimps along their length and will also produce on the surface of the filaments, serrations, projections or nodules. For example, the filament A, Fig. 1, may be passed between a pair of fluted rollers C to produce crimps on the filaments, and the surface of the rollers is etched or finely engraved to give the necessary roughness to the surfaces, and the process may be repeated at a second pair of rollers D, arranged at a suitable angle to the first pair in order to impress on the filaments crimps in a different .plane; or the filaments may be projected downwardly from a nozzle j, Fig. 4, either rotating in a circle of small diameter or moved rapidly backwards or forwards as by a pin k and rod K. so as to produce ends or crimps respectively, and at the same time nodules &c. are produced on the filaments by vibrating the nozzle in a vertical direction as by the cam L acting on the rod K; or the filaments A may be passed over a fluted roller M. Fig. 5, and at the same time beaten bv rapidly-vibrating reeds N forming part of the armature of an electromagnet P, and in this case the surface of the roller is finely engraved or etched to produce the desired roughness of the surface of the filaments; or to produce a curled filament these may be arranged in front of the extrusion orifice B, Fig. 6, a spiral tube R through which the filament passes, and through the tube is also circulated by means of a pump S a stream of hardening fluid carrying in suspension a powdered material such as powdered collulosic material, which by adhering to the fila. ment roughens its surface; or a spiral form may be produced by extruding the, solution through a passage of oval cross-section and having a twist in the direction of its length, or by extruding the solution through an inclined aperture E, Fig. 3, arranged tangentially to the passage H through which flows a stream of hardening fluid. The filaments may be cut into lengths as by means of a knife G, Fig. 3, and they may be used alone or in conjunction with wool fibres. Fabrics made from these fibres do not sag and they exhibit a mellowness and softness; and the fibres mav be used for the manufacture of felted materials such as felted fabrics, hats, &c.
Patent GB-1494575-A (GB)
Title: Pipe machining apparatus
IPC: B23B5/14
Filed: 1975-07-15
Abstract: 1494575 Sawing pipes GEORG FISCHER AG 15 July 1975 [22 July 1974] 29718/75 Heading B5L [Also in Division B3] Pipe machining apparatus for threading and cutting off lengths of pipe comprises a pipe clamping section 11 which holds the pipe against rotation and is movable in the axial direction of the pipe on guide means 30, 31, a motor driven pipe threading section 1 with a threading tool 5, 49 therein, a pipe cutting section 6 having a cutting tool 10 therein, the pipe threading section and the pipe cutting section being located with respect to the axis at the same side of the pipe clamping section, the movement of the clamping section along the guide means being of greater distance than the distance D between the end of the threading tool which faces the clamping section and the end of the cutting tool means which faces the clamping section. The pipe length 12 is held in the clamping section by jaws means 20, 21 actuated by crank 23 and the displacement of the clamping section 11 with the pipe is effected manually by hand wheel 27 which operates via a rack 32 and pin 26 to move the clamping section over the distance D. The threading section 1 includes a cutter head 5 and casing 4 which houses the drive means from the motor 3 attached to the casing the whole section 1 being pivotable about spindle means 13, 16, transversely to the axis of the pipe and clamping section to displace the threading section away from the machining area as shown in chain dot line B. The threading section is releasably locked in the inoperative position. The thread cutting means is in the form of an interchangeable thread cutting die to facilitate the threading of various diameter pipes. The pipe cutting section 6 is located axially beyond the pipe threading section 1 and is removably connected to the machine frame 2 by screws 53, and includes a pipe cutting tool 10 rotatably mounted in a rotary cutter body 9 driven by a motor 54 so as to rotate around the pipe whilst the rotating cutter 10 severs the pipe length.
Patent GB-1002074-A (GB)
Title: Device for use in measuring the female figure
Inventor: MURPHY AUSTIN CHARLES
IPC: A41H1/02
Filed: 1963-07-26
Abstract: 1,002,074. Measuring for wearing apparel. SPIRELLA CO. OF GREAT BRITAIN Ltd. July 8, 1964 [July 26, 1963], No. 29831/63. Heading A3V. A device for measuring the female form for a foundation garment or swimsuit comprises back strips 1, 2 with extensions 1<1>, 2<1> pivoted to each other and adjustably connected to a front strip 3 by a friction buckle 5. A waist band 10 is threaded through stiffened fabric loops 14 secured to the strips 1-3 to allow it transverse but not longitudinal movement relative to the strips. Bands 16 and 17 are transversely and longitudinally adjustable relative to the strips by means of friction buckles 20. In a modification (not shown) the extension 1<1> and 2<1> are separate members adjustably secured to the back strips. Detachable extension strips may also be secured to the lower end of one or more of the strips 1-3 e.g. for measuring the waist-crutchwaist dimension in fitting slacks.
Patent GB-646498-A (GB)
Title: Inflatable boats and method of making same and other inflatable articles
IPC: B63B7/08
Filed: 1946-10-07
Abstract: 646,498. Inflatable boats. LUISADA, A. G. Oct. 7, 1946, No. 29932. [Class 113 (i)] [Also in Group XXI] An inflatable boat or other article having sides and bottom collapsable to flat condition along a longitudinal medial plane of vertical symmetry is manufactured by forming each half of the boat about this axis from two flat-lying units, each of which is formed by joining together a series of tubes 25 ... 30, along planes 2-11, 3-10, 4-9, 5-8, 6-7, forming partitions, and covering the consequent unit by two air-impervious sheets 32, 33 and joining these sheets along lines 34, 35. The resulting structure is contoured to the required shape of the collapsed boat. The second half thus formed is joined to the first half in the flat condition by connecting the planes 1, 49. On inflation the boat assumes the shape shown in Fig. 1. Each half of the boat may be formed by weaving in one piece, the planes 2-11, 3-10, &c. being formed by carry-over threads. Allowance may be made in the weaving of the material to allow greater stretch on the outer surface of the inflated boat. The Specification also describes several modified structures giving boats of various cross-section and profile.
Patent GB-305614-A (GB)
Title: Improvements in and relating to sound reproducing apparatus
IPC: H04R11/00
Filed: 1927-11-08
Abstract: 305,614. La Bourdonnais, (Prince de MahÚ), C. M. de C. de. Nov. S. 1927. Magnetic instruments.-In an electromagnetic mechanism for actuating a sound reproducing diaphragm of the type embodying a balanced armature mounted upon a central support about which it oscillates resilient means, yielding a high control force, is provided at a point external to the region embraced by the magnet poles. The Figure shows an armature a mounted upon a lateral locating strip b of very thin manganese between pole-pieces cd. The diaphragm driving rad g is attached to a reed h which, exerting a high control, permits the mass of the armature to be increased without adverse effect. The locating strip h is preferably notched at the centre to further reduce eddy currents.
Patent GB-154452-A (GB)
Title: Improvements in automatic couplings for railway vehicles and the like
IPC: B61G1/06
Filed: 1919-12-01
Abstract: 154,452. Thorpe, A. N., and Beecroft, E. Dec. 1, 1919. Addition to 132,706. Couplings, automatic.-The coupling described in the parent Specification is modified in that means are provided for positively moving forward the hook to its "Ready to couple" position by the action of raising the weighted lever, and preventing rearward movement of the hook in its bracket by contact with any part of the opposed vehicle except in the act of coupling. For these purposes, the bracket 5, Fig. 2, is provided with a projecting spiral cam-surface 24 and the nut 7 with an annular projection 23, the projections 24, 23 engaging respectively with recesses 22, 21 on the rotary cam 9 carrying the weighted lever 10. Thus, when the lever 10 is either raised or lowered, the engagement of the spiral 24 with the recess 23 gives a positive movement to the cam 9, which movement is in turn communicated to the shank 4 of the coupling- hook 3 through the engagement of the annular projection 23 with the recess 21; while in addition, free sliding movement of the shank 4 in the bracket 5 is prevented. The trip-lever 12 has a bifurcated front portion 15 embracing the shank 4 and a rear portion or finger 16 resting in the "Ready to couple " position, on a shoulder 18 of the cam 9. When the coupling-hook 3 falls into engagement with the pin 17 as shown in Fig. 2, the ends 15 of the trip-lever engage the upper surface of the pin and cause the trip lever to move on the pivot 13 relatively to the hook 3, thus depressing the finger 16 and causing the weighted lever 10 to fall. Thus no movement of the lever 10 can occur until the hook 3 is in engagement with the pin 17.
Patent GB-784120-A (GB)
Title: Improvements in or relating to vehicle driving arrangements
Inventor: EVERNDEN HAROLD IVAN FREDERICK
IPC: F16H3/66
Filed: 1953-10-30
Abstract: 784,120. Change-speed and differential gear. ROLLS-ROYCE, Ltd. Oct. 15, 1954 [Oct. 30, 1953], No. 30105/53. Class 80 (2). A driving arrangement for a tracklaying vehicle comprises a hydrokinetic drive unit 14 coaxial with the input shaft 11 and comprises separate bevel gears 24, 25 driving differential mechanism 72 and epicyclic changespeed gears on a cross-drive shaft 31. Spur gears 67 are driven by the runner 21 of the unit 14 through the differential mechanism. Three high-speed forward gear ratios are provided by brakes 55, 41, 51 on epicyclic gears, with a clutch 17 engaged so that the bevel gear 25 is driven by the casing of the unit 14 through an annular gear 18 and by the runner 21 through a sun-gear 19. Three low-speed forward gear ratios are provided by the brakes 55, 41, 51, with the clutch 17 disengaged and a brake 26 applied to the annulus 18. Two reverse gears are obtained with the clutch 17 disengaged and with brakes 26, 39 applied or with only a brake 84 on the cross-drive shaft 31 applied. Steering is effected by applying either of the brakes 68, controlling the respective spurwheel 67 and sun-gear 65.
Patent GB-1470671-A (GB)
Title: Oil fuel atomisers for boilers
IPC: F23D11/10
Filed: 1975-07-07
Abstract: 1470671 Atomizer nozzles CENTRAL ELECTRICITY GENERATING BOARD 7 July 1975 [8 July 1974] 30175/74 Heading F4T A multi-outlet jet atomizer for an oil burner comprises a body 10 having a plurality of nozzle inserts 15 arranged around an axis A-A of the body and secured therein, an atomizing fluid inlet 11 in the body having an outlet 12 for each insert and one or more oil galleries 19 in the body, supplied by a passage 20. The atomizing fluid is steam; and the nozzles 15, which are convergent-divergent, are screwed into the body and engage cup-shaped elements 14 which have a plurality of ducts 22 therein. In a modification, elements 14, Fig. 3, are omitted and the inserts 36 have ends 39 which form metering slots 40. There may be a separate gallery 33 for each insert, or a single gallery common to all inserts may be provided. The body 10 may be fabricated.
Patent GB-796633-A (GB)
Title: Improvements in or relating to anti-freeze mixtures
IPC: C09K5/20
Filed: 1955-10-21
Abstract: 796,633. Anti-freeze mixtures. PILGRIM, L. Oct. 29, 1956 [Oct. 21, 1955], No. 30231/55. Class 29 An anti-freeze mixture consists of 16 parts by weight of sodium chloride, from 8 to 48 parts by weight of cane sugar, and from 1 to 4 parts by weight of calcium hydroxide. The mixture in solid form or as a paste in water, is added to water to form a coolant, in the proportions of 1 part by weight of mixture to 3 or 6 parts by weight of water. Examples of compositions are given.
Patent GB-246771-A (GB)
Title: Improvements in electromagnetic devices
IPC: H04R11/00
Filed: 1924-09-01
Abstract: 246,771. Western Electric Co., Ltd., (Western Electric Co., Inc.). Sept. 1, 1924. Drawings to Specification. Electromagnets. - An electromagnetic device comprising one pair of pole-pieces angularly spaced on one side of and a second pair angularly spaced on the other side of an armature formed of a very light nonmagnetic portion and a magnetic portion, which is preferably tapered, has the pole faces of the pole-pieces arranged so as to cover substantially the magnetic portion of the armature. The construction is identical with that described with reference to Figs. 1, 2, 3, and 5 of Specification 243,787, [Class 40 (iv), Telephones &c.]
Patent GB-1397151-A (GB)
Title: Air filter and method of making the same
IPC: B01D39/16
Filed: 1972-06-28
Abstract: 1397151 Pile fabrics YAMAHA HATSUDOKI KK 28 June 1972 [30 June 1971] 30267/72 Heading D1K [Also in Division Bl and B2]  An annular filter element 10 comprises a base layer of open celled polyurethane foam 12 on whose upstream surface is formed a pile of nylon or wool fibres which retain the larger particles. The element is made (Fig 3) by coating the upper face of the flat base layer 12 with an emulsion of a prepolymer of acrylic resin. A vessel 28 with a floor in the form of a metal net is connected to the postive side of a 50kv supply and brought near to the layer 12 so that the charge induced thereon causes the fibres contained in the vessel 28 to migrate and form pile 14 on layer 12. The coating is then cured by infra-red radiation and the resulting flat element formed to annular shape by heat bonding its opposite edges together (Fig 4, not shown). The element is soaked with non-drying oil before use and clamped in the housing (Fig 5) between foam plastic end rings 54, 56 (Fig 6, not shown) and internally suported by expanded metal screen 50. The filter of Fig 5 is for an I.C. engine air intake. Typically the base layer 12 may have 180 cells exposed per square cm of surface, and 5000 fibres of 15 microns dia and 3.5 mm long may be adhered to each square cm. The element may be washed when dirty.
Patent GB-657663-A (GB)
Title: A waistband for use on garments
IPC: A41F9/02
Filed: 1949-11-25
Abstract: 657,663. Garment waistbands EDGARD, L. Nov. 25, 1949, No. 30296. [Class 141] An extensible waistband is formed in separate parts 2, 2a, the part 2a having a tab 2b to overlap the part 2 to a greater or less extent and be fastened in adjusted position. The garment material 3 at the gap between the parts is formed with a pleat, the outer fold 3a of which is secured by sewing and the inner fold 3b is free Specification 657, 654 is referred to.
Patent GB-1197189-A (GB)
Title: Tearable Closure
Inventor: CONTARDI AGOSTINO
IPC: B65D55/02
Filed: 1967-06-30
Abstract: 1,197,189. Container closures. A. CONTARDI. 30 June, 1967, No. 30296/67. Heading B8T. A snap-on closure, particularly for small monodose bottles, comprises a substantially cylindrical portion 10 closed at its upper end by a disc 10<SP>1</SP> of larger diameter, the parts 10, 10<SP>1</SP> being connected by a peripheral region 11 having a line of weakness 12 around all or part of its circumference. The closure is opened by tearing the disc 10<SP>1</SP> so that the cap cannot be reused. The inner surface of the portion 10 has grooves 14 designed to engage external annular ribs 15 on the neck of a bottle 16. The grooves and ribs may be of saw-tooth shape, Fig. 3 (not shown), and the disc 10<SP>1</SP> may have a tear-tag (23), Figs. 4, 5, 7 (not shown). Alternatively, Fig. 3 (not shown), a tag and a line of weakness may be provided on the part 10. In a modification, Fig. 8 (not shown), the cylindrical portion of the closure is in the form of a double wall (30, 31) for engaging ribs respectively on the outside and inside of the bottle neck. In another modification, Figs. 9, 10 (not shown), the under surface of the disc 10<SP>1</SP> is provided with an annular sealing bead of triangular cross-section.
Patent GB-883581-A (GB)
Title: Improvements in chairs, settees and the like convertible into beds
IPC: A47C17/16
Filed: 1960-09-02
Abstract: 883,581. Bed-settees, upholstery. INGRAM, J. G., and INGRAM, G. Sept. 2, 1960, No. 30333/60. Classes 52(2) and 52(4) In a bed-settee in which the contour of the load supporting means is variable by altering the position of its lateral connections with side panels, the panels are pivoted from a seat position into alignment to form a bed. As shown, mesh panels A, B are pivotally interconnected at 13 and are secured by a withdrawable bolt or pin at 14 which is transferred to the upper rear corner of panels A when the chair is converted into a bed. Rigid cross rails 11 unite the panels to form the chair framework. Tension springs 12 are hooked into the mesh and may be replaced by flexibly interconnected cross-bars or a sheet of canvas which may or may not be reinforced by rigid horizontal slats. The mesh panels may be replaced by perforated metal sheets or metal sheets having pressed out projections to receive hook attachments.
Patent GB-871014-A (GB)
Title: Improvements in or relating to door closers
Inventor: FREWER WILLIAM CHARLES
IPC: E05F3/06
Filed: 1956-10-05
Abstract: 871,014. Dashpots. DORAN, T. J. Dec. 2, 1957 [Oct. 5, 1956], No. 30386/56. Class 108(3).[Also in Group XXV] A dashpot for a door closer, (see Group XXV) comprises a piston 9 which moves to the right in a cylinder 8 when the door is opened, oil then passing freely in the opposite direction through passages in the piston controlled by non-return ball valves. When the door closes and the piston returns to the left oil can flow to the right only by way of the hollow piston rod 10 and a transverse port 29 formed in the wall of the piston rod. A rod 30 disposed within the rod and provided with a flat 31 opposite the port 29 may be rotated by a handle 32 to vary the restriction to the flow of oil. A groove 37 is provided to permit snap closing of the door at the end of its closing movement. The piston may be skirted and have a portion of the skirt cut away to match the groove. The piston may be rotated to misalign the cut out portion and the groove to eliminate the snap action.
Patent GB-611062-A (GB)
Title: Improvements in and relating to potato diggers
IPC: A01D17/10
Filed: 1945-11-14
Abstract: 611,062. Potato diggers. WHITSED, W. J. Nov. 14, 1945, No. 30411. [Class 6(iii)] A potato digger of the type comprising a digging share 1 and an elevator 2 at the rear of the share is characterized by having at each side of the lower front end of the elevator and in advance of it, a side plate 5 extending forwardly of the share and a shoe 7 at the front of said plate for raising straggling haulms. A vertical roller 6 assists in passing the raised haulm rearwardly to the elevator together with the lifted potatoes, the plates 5 preventing potatoes and haulms falling over the side. Share and side plates may be adjusted together or independently.
Patent GB-661677-A (GB)
Title: Control device for variable pitch propellers
IPC: B63H3/02
Filed: 1948-11-23
Abstract: 661,677. Variable-speed toothed gearing. RANZI, U. Nov. 23, 1948 [Nov. 28/1947], No. 30417/48. Classes 80(i) and 80 (ii). A device for varying the pitch of three propeller blades, Fig. 4, comprises an epicyclic gear, Fig. 1, employing a planetary 'worm gear and capable of producing a relative rotation, when required, between the two coaxial shafts 3, 4 which normally rotate together to drive the propeller. A driving shaft 1 is connected to a cylindrical casing 2 to which is also connected the hollow shaft 3. The shaft 4 is keyed to a gear 5 engaged by a worm 6 on whose shaft is a skew helical gear 7. The gear 7 meshes with a similar gear 8 connected to a bevel gear 9, the gear 9 being engaged by bevel gears 10, 11 loose on the shafts 3, 1. Normally the whole assembly rotates together. A brake may, however, be applied to either of the gears 10, 11, thus causing a rotation of the gear 9 and consequently a relative rotation between the shafts 3, 4. Hydraulic braking is effected by connecting each of the gears 10, 11 to a disc rotatable in a fixed chamber into which water may be directed by valve control. The Specification as open to inspection under Sect. 91 comprises also modifications in which braking is effected frictionally or electromagnetically. This subject-matter does not appear in the Specification as accepted.
Patent GB-425709-A (GB)
Title: Improvements in or relating to copper base alloys
IPC: C22C9/00
Filed: 1933-11-02
Abstract: A copper alloy comprises about 0,1-2,5 per cent of silicon, about 0,1-0,4 manganese, the remainder being copper. In an example, the alloy contains 98,25 per cent of copper, 1,50 of silicon and 0,25 of manganese.  The alloy may be used for the manufacture of bolts, nails or screws, pipes or tubes, cartridge shells and ammunition cases and tanks, boilers, &c.
Patent GB-226553-A (GB)
Title: Improvements in door and like closing and fastening devices
IPC: E05B65/19
Filed: 1924-12-18
Abstract: 226,553. Perlat, V. A. Dec. 22, 1923, [Convention date]. Bonnets are secured in a closed position by a device comprising a support A on which is pivotally mounted at G a member C containing a spring-pressed plunger E which acts in a direction perpendicular to the surface of the part E carried by the edge of the hinged bonnet K'. To close and secure the bonnet, the member C is moved on its pivot into the position shown and the outer sleeve H is pushed down until the stud I engages with the notch B in the bracket arm A. To free the member K, the member C is first swung to the right about its pivot to disengage the stud I from the notch B, when the spring serves to force the member C tc the left to its inoperative position.