baber/WOPTO huggingface dataset:
Patent GB-377536-A (GB)
Title: An improved process for the saponification of spermaceti and spermaceti oil
IPC: C11D13/02
Filed: 1931-11-13
Abstract: Soaps of great wetting and emulsifying powers are obtained by sulphonating spermaceti or spermaceti oil with 30 per cent or more of sulphuric acid and heating the product with excess of alkali. Ordinary soaps and other substances may be added.  For example, a liquid toilet soap results from mixing 3 lb. of 2,2-pentamethylene-4 oxymethyl-dihydrodioxol, 30 lb. of a 20 per cent spermaceti-oil soap, and 100 lb. of a 20 per cent soap made from oleic acid and coconut oil.ALSO:Soaps having wetting and emulsifying properties are obtained by sulphonating spermaceti or spermaceti oil with 30 per cent or more of sulphuric acid, and heating the product with excess of alkali. For example, spermaceti oil is sulphonated in known manner with 30 per cent of sulphuric acid, washed with salt water, made weakly alkaline with alkali hydrate or carbonate, and then boiled with caustic lye; a gelatinous soap results.
Patent GB-949057-A (GB)
Title: Purification of streptokinase
IPC: C07K14/315
Filed: 1960-09-13
Abstract: Streptokinase is purified by bringing into contact with DEAE cellulose, TEAE cellulose or ECTEOLA cellulose a solution of streptokinase in a phosphate buffer having a molar concentration of from 0.005 to 0.015, washing the cellulose with a phosphate buffer having a molar concentration between 0.02 and 0.06 to remove impurities, and removing streptokinase from the cellulose with a phosphate buffer having a molar concentration between 0.06 and 0.15.
Patent GB-1351839-A (GB)
Title: Manufacture of non-woven thread arrays
IPC: D04H3/04
Filed: 1971-07-06
Abstract: 1351839 Laminates KONINKLIJKE NEDERLANDSE TEXTIEL-UNIE NV 6 July 1971 [6 July 1970] 31654/71 Heading B5N [Also in Division D1] Parallel transverse threads 20 are continuously laid in the nip of rollers 14, 15 to reinforce one or more layers 16, 17 of longitudinal threads and/or foil or paper. In one embodiment rotating wheel 1 carries bobbins 5, each of which supplies a thread 20 through a brake 6 and eyelet 7. As each loose end approaches grooved wheel 2 it is sucked across groove 8 by suction tube 19. An endless belt (9, Fig. 5, not shown) of corresponding cross-section occupies the groove between rollers 10, 11 and holds the ends as threads 20 travel towards the nip of rollers 14, 15. There they are sandwiched between layers 16, 17 as they are cut by rotating knife 21 and the free ends are released by belt (9). Alternatively the bobbins 5 may be arranged on a separate rotating reel and the threads collected into a bundle that is supplied to the centre of wheel 1 from whence they are distributed to brakes 6 and eyelets 7.
Patent GB-1431618-A (GB)
Title: Tube mill
IPC: B02C17/10
Filed: 1974-07-17
Abstract: 1431618 Tube mill linings WAAGNER-BIRO AG 17 July 1974 [19 July 1973 14 Sept 1973 (2) 11 Oct 1973 20 Dec 1973] 31775/74 Heading B2A A tube mill comprises a lining of grinding plates arranged to have a polygonal internal cross section (including square) in which supports 1 Fig. 1, are mounted in the inside of the casing. Some of the plates are directly or indirectly attached to the supports which are arranged in consecutive rings 3....6 and angularly relatively staggered. The supports comprise a pair of angle members 9, 10 disposed across the shell 2 of the mill and internal stiffening struts 7 and stiffening members 11. The angle members 9, 10 may engage a groove in the undersurface of a plate 13 Fig. 3, or be bolted as at 14, Fig. 4, include resilient inserts 32. Different profiles of bolts and bolt heads Figs. 5....8 not shown are described. However, bolts may be eliminated the plates pressstud fitting into resilient bands 32, Fig. 11. Various profiles, e.g. dovetail may be used. The dovetails may be locked by pins 36, Fig. 12 or rings (18) Fig. 14, not shown. The lining may also be secured by keys Figs. 16....18 (not shown) or by a key-and-wedge arrangement 47, 40 as in Fig. 19.
Patent GB-1375885-A (GB)
IPC: F25D23/06
Filed: 1973-03-14
Abstract: 1375885 Refrigeration LEC REFRIGERATION Ltd and E A COWEN 14 March 1973 [7 July 1972] 31842/72 Heading F4H The inner wall of a double-walled cooling chamber for a refrigerator or freezing cabinet is formed of panels which are secured together at their edges by strips 20 of waterproof selfadhesive tape. The cooling coil 6 is attached to the exterior of the inner wall by short strips 21 of self-adhesive tape and the whole assembly is then covered with self-adhesive tape. The space between the inner and outer walls of the chamber is filled with expanded polyurethane foam.
Patent GB-621588-A (GB)
Title: Improvements in and relating to electron discharge devices
IPC: H01J19/38
Filed: 1946-10-28
Abstract: 621,588. Thermionic valves. M-O VALVE CO., Ltd., and KLEPP, G. F. Oct. 28, 1946, No. 31869. Drawings to Specification. [Class 39 (i)] In an electron discharge device comprising a cathode and at least two grid electrodes which are wound in opposite directions, that grid further from the cathode being adapted to be maintained at a potential positive with respect to the cathode, either or both of said grids is or are so constructed as to increase the cross-over angle between their turns in order to reduce the longest continuous length of the winding of the further grid exposed to the full electron stream and so to improve the uniformity of heating of the further electrode. The crossover angle is increased, without decreasing the number of turns per unit length, beyond that cross-over angle which would be attainable if the two grids each had single helical windings wound in opposite directions. In one arrangement, either or both of the grids comprises two or more interlaced windings, which may be wound, for example, by the multi-start method. In another embodiment either or both of the grids is so wound that the portion of the winding in contact with the supporting members bends in the opposite direction to the normal axial direction of the winding, suitable slots being provided in the supporting members. According to the Provisional Specification, considering one half turn of a winding between its two supporting members, the wire may be shaped so as to curve upward for a fraction of its length on leaving one supporting member, turn and travel downwards for the majority of its length, and finally curve upwards again for a fraction of its length before reaching the other supporting member.
Patent GB-409777-A (GB)
Title: Improvements in and relating to photographic cameras
IPC: G03B19/12
Filed: 1932-11-11
Abstract: 409,777. Photographic cameras. POUND, E. J., c/o McMichael Ltd., Wexham Road, Slough, Buckinghamshire. Nov. 11, 1932, No. 31881. [Class 98 (i).] Lenses of Dallmeyer or Cooke type are provided with means for holding the diaphragm fully open for focusing, the diaphragm being afterwards closed down automatically to a predetermined stop prior to or simultaneously with the opening of the shutter. In the Dallmeyer lens shown in Figs. 1, 2 and 3, the tubular casing A and the ring 4, to which the diaphragm leaves are pivoted, rotate together and the notched ring 5 for operating the leaves is provided with a pin a<1> to which is connected a spring B anchored at the other end to a pin bl on the casing A. The action of the spring B tends to rotate the ring 5 to stop down the diaphragm, the pin a<1> being engaged with the diaphragm fully open by a pivoted catch D which is released by means of the cranked push rod F acting upon a hinged plate E engaging the catch D. The casing A is rotated to engage. the pin a<1> with the catch D and is then turned back to set the diaphragm to the desired stop value, this movement positioning a pin b to arrest the diaphragm-closing movement of the ring 5 by engagement of the pin a<1>. In the Cooke lens shown in Fig. 8, the notched ring 5 for operating the diaphragm leaves is furnished with a pin a<1> to which the spring for rotating the ring 5 to stop down the diaphragm is attached and which is engaged by a releasable catch. The setting of the ring 6 to the desired stop value positions the end of the slot a in which the pin a<1> moves, so that the movement of the ring 5 is arrested at a point corresponding to the desired stop value. The apparatus described above is preferably connected to a shutter release device, the release mechanism being arranged to release first the catch for diaphragm setting apparatus and then the shutter.
Patent GB-246448-A (GB)
Title: Improvements in apparatus for retreading the outer covers of pneumatic tyres
IPC: B29D30/54
Filed: 1925-12-17
Abstract: 246,448. Turbillon, G. Jan. 21, 1925, [Convention date]. Moulding wheel tyres.-A retreading apparatus for tyres comprises a two-part mould hinged at 4 with steam &c. channels 9, 10 and inlets 11 and outlets 12. The tyre with a tread-pattern ring is placed in the heated part 1, the mould is closed and clamped by screws 6 and nuts 8. A sand bag with rubber-plugged ends is inserted, and on this is placed an expanding two-part spring 23, 24 having curved portions 22 rivetted thereon. The bag is expanded in the tyre by unscrewing nuts 20, bearing on shoes 21, on screws 19 carried by a hub 18 at the centre of the mould.
Patent GB-687941-A (GB)
Title: Improvements relating to angler's casting reels
IPC: A01K89/01
Filed: 1949-12-14
Abstract: 687,941. Fishing reels. BIRCHALL, T. Dec. 14, 1950 [Dec. 14, 19491, No. 32021/49. Class 48. In a non-rotary spool type fishing reel the spool 34 is caused to tilt or wobble continuously on rotation of the flier 20, to effect a criss - cross progressive winding of the line, by means of a single ball 27 located between the rotary flier and the non- rotary spool and radially offset from their axes. As shown the flier 20 is driven by bevel gears 11, 12 and has a central boss 21 carrying one race 23 for the single ball 27, and the spool 34 is clamped on a sleeve 25 having a flange 26 forming the other race or track for the ball 27. The sleeve 25 is slidably keyed for tilting movement on a non-rotatable shaft 22, a spring 39 on the shaft 22 urging the fixed ball-track 26 towards the rotary race 23. A cap 38 screwed onto the end of sleeve 25 lightly clamps, in an adjustable manner, the spool 34 on the sleeve so as to allow the spool to rotate on the sleeve 25 under line strain, an audible clicker arrangement 35, 37 being provided. In operation rotation of the flier 20 with the race 23 rolls the ball 27 around track 26 causing the spool 34 to wobble continuously to effect a criss-cross winding of the line, an even progressive winding being obtained due to the slight slip of the ball during its rolling movement.
Patent GB-1429213-A (GB)
Title: Machine tools
IPC: B23G1/16
Filed: 1973-07-06
Abstract: 1429213 Machine tool details; spindles TEXTRON Inc 6 July 1973 [10 July 1972] 32216/73 Headings B3C and B3B In a machine tool, the tubular quill 14 supporting a rotatable tool spindle 10, Fig. 1, is in screw-threaded engagement with a nut 18, relative rotation between the screw and nut so as to feed the spindle and quill being provided by drive means 25-28. The nut may be held axially and against rotation, with the quill being rotated by a belt drive 26. Fig. 1. In a modification, the belt drive is replaced by a gear drive (40, 42), Fig. 2 (not shown). In a further modification, the nut (18<SP>11</SP>), Fig. 3 (not shown), is rotated and fixed axially, with the quill fixed against rotation. The nut 18<SP>11</SP>, Fig. 4, may be rotated by a fluid-pressure piston 54 which actuates a pulley drive 60, 58. The drive motors may be electrical or hydraulic.
Patent GB-141019-A (GB)
Title: Improvements in engine-starters
IPC: F02N15/06
Filed: 1919-12-24
Abstract: 141,019. Eclipse Machine Co., (Assignees of McGrath, W. L.). March 31, 1919, [Convention date]. Turning-gear.-In an engine-starter, the automatic meshing of a driving pinion with a toothed engine member is facilitated by a pilot member arranged in advance of the pinion. In the form shown in Figs. 1 and 4, the pinion 6 is threaded upon a hollow screw shaft 2 surrounding a shaft 1 driven by an electric or other motor or by hand, the ,shafts 1, 2 being connected through a driving- spring 3. The pilot member is spaced from the pinion and is toothed to correspond with the pinion, to which it is connected by springs 9 sunk in recesses 6a, 7<a>, Fig. 4, or by a single coil spring around the pilot member. The teeth of the pilot member have a single or double chamfer, and those of the pinion preferably a double chamfer. A pair of lugs 7<c> on the pilot member enter grooves 6<c> in the pinion, which are a little wider than the lugs. When the rotation of the screw shaft moves the pinion axially, a small angular movement made by the pilot member when coming into mesh with the engine member 8<a> is communicated to the pinion through the springs 9, and a larger movement through the lugs 7<c>. In the form shown in Figs. 1 and 4, the pilot member 7 fits loosely over the screw shaft and engages a stop 11 at the end of its travel. In a modification, the pilot member has internal threads narrower than the spaces between the threads on the screw shaft. In another form, Fig. 9, the pilot member 17 is slidable on a reduced part of the pinion 15, so that the pinion itself engages a stop at the end of its travel. The stop may be formed by the end of the screw thread or threads. Specification 20811/14 is referred to.
Patent GB-1389432-A (GB)
Title: Process for removing nickel carbonyl from crude propionic acid  containing the same
IPC: C07C51/487
Filed: 1972-07-11
Abstract: 1389432 Propionicacid BADISCHE ANILIN- & SODA-FABRIK AG 11 July 1972 [12 July 1971] 32333/72 Heading C2C Crude propionic acid prepared by reaction of ethylene with carbon monoxide in the presence of nickel carbonyl is purified from nickel carbonyl by treating with a gas containing oxygen, countercurrent in a trickling phase. The gas may be inert containing from 3 to 10% by volume of oxygen and the inert gas may be the off-gas from the preparation of propoinic acid obtained after the removal of nickel carbonyl. 5 To 20 cubic metres of inert gas containing 2 to 10% by volume of oxygen are used for each cubic metre of crude propionic acid.
Patent GB-260129-A (GB)
Title: Process for desulphurising naphthalene or paraffin
IPC: C07C7/00
Filed: 1925-12-22
Abstract: 260,129. Bube, K. Dec. 22, 1925. Paraffin waxes, purifying.-Paraffin wax or naphthalene is desulphurized by pugging scales, chips, or the like thereof with acetone or ethyl alcohol or its homologues or other alcohols mixed or not with benzine or benzene, the proportion of solvent being insufficient to dissolve appreciable amounts of the wax or naphthalene. In an example, equal quantities of wax or naphthalene and ethyl alcohol of 93-97 per cent strength are used, and the liquid is separated by centrifuging, pressing, or suction filtration.
Patent GB-975158-A (GB)
Title: Method and apparatus for heating treating metal
Inventor: MORGAN ROBERT FREDERICK JENKIN
IPC: C21D1/44
Filed: 1962-08-23
Abstract: <PICT:0975158/C6-C7/1> A method and apparatus for continuously heat treating elongate metal strip 24, in which the metal is continuously led through a chamber 12, passing therein first over the surface of a heating bath 16, and then over the surface of a cooling bath 17, the baths containing a liquid heat transfer medium which is caused to circulate from the cooling bath to the heating bath, and back to the cooling bath.  The baths 16, 17 are separated by a partition 19 in which are formed tunnels 18, connecting the baths.  The bath 16 contains submerged heating elements 31 separated by partitions 32, a rising temperature gradient between the ends 14 and 19 of the bath resulting therefrom.  The cooling bath 17 may also be provided with the partitions 32, to prevent surging of the liquid. The metal strip 24 enters the chamber 12 through slit 22 in the wall 14, and passes over guide rolls 26, 27, 28 leaving the chamber via slit 23 in the opposite wall.  The slits 22, 23 contain seal rolls 25, and the chamber 12 contains an atomsphere which is non-reactive with the hot metal strip. The strip may also pass under swinging deflector rolls 40 which maintain the strip in contact with the heat transfer liquid, and which may be raised into positions 401 allowing the strip to be raised to position 24A when it is stationary in the chamber.  Heaters 43 are embedded in the walls of the chamber to maintain it at about 200  DEG C. when it is empty.  A suggested heat transfer liquid is lead bismuth.
Patent GB-778201-A (GB)
Title: Process for producing water-insoluble threads of polyvinyl alcohol
IPC: D01F6/14
Filed: 1953-11-23
Abstract: Threads of polyvinyl alcohol, which may still contain acetyl groups, are stretched, dried, heated under tension and treated with an aqueous solution containing formaldehyde and either hydrogen chloride or perchloric acid or containing formaldehyde, hydrogen chloride and perchloric acid.  The solution may also contain an alkali chloride and a perchlorate and may be applied to the threads in one or more baths.  The treatment may be effected in one bath at one temperature or at a continuously increasing temperature or in a number of baths at the same or successively increasing temperatures.  In examples, the threads are produced by wet or dry spinning methods and are stretched, dried, heated under tension and treated in baths containing: (1) formaldehyde, hydrochloric acid and sodium chloride at 70 DEG  C.; (2) formaldehyde, perchloric acid and sodium chloride at temperatures of 20 DEG  C., successively raised to 70 DEG  C. and 90 DEG  C.; (3) in a first bath, formaldehyde, hydrochloric acid and potassium chloride at 20 DEG  C., in a second bath, formaldehyde, hydrochloric acid and sodium chloride at 70 DEG  C. and in a third bath formaldehyde and hydrochloric acid; (4) formaldehyde, hydrochloric acid, perchloric acid, sodium perchlorate and sodium chloride at a temperature continuously raised from 20 DEG  to 80 DEG C., and (5) formaldehyde, hydrochloric acid and sodium perchlorate at 80 DEG  C.
Patent GB-1194145-A (GB)
Title: Signal Monitoring System
IPC: G05D1/00
Filed: 1968-07-08
Abstract: 1,194,145. Radio navigation. BENDIX CORP. 8 July, 1968 [28 July, l967], No. 32510/68. Heading H4D. [Also in Division G3] A signal Ea derived from an input control signal E 1  is compared in unit 44 with a combination of a signal Er, derived from E 1 , and a redundant signal E<SP>1</SP>a, an alarm being given by the comparator. In the embodiment, signals E 1 , E 2  are derived from omni-range radio receivers 2, 4 in an automatic pilot control system, signal Ed corresponding to displacement from a desired direction. Integrator 18 may be driven from receiver 4, and signal Er may be summed with signal Ea.
Patent GB-634905-A (GB)
Title: Improvements in and relating to the packings of rotary hydraulic valves
IPC: F16K5/20
Filed: 1947-12-12
Abstract: 634,905. Valves. ENGLISH ELECTRIC CO., Ltd., SEEWER, P. W., DENIAZ. P., and BRAIKEVITCH, M. Dec. 12, 1947; No. 32778. [Class 135] [Also in Group XXVI] A hydraulic valve having a rotary sluice-gate 8, e.g. of hollow part-spherical form, has a rubber &c. packing ring 17 retained in the valve casing by a clamping ring 11 composed of a number of segments having end flanges 11 a by which they are connected by bolts 12a, whereby the packing ring can be removed and replaced without dismantling a flange joint of a penstock or pipe line to which the valve may be connected. The ring segments 11 are secured to a tubular member 9 within the valve casing by screws 12, and the end flanges of one of the segments are parallel, the others being radial, to enable that segment to be withdrawn in a radial direction. The ring 17 is also clamped by a metal ring 15 which is expanded radially by screws 16. A conduit 14, which may be connected to the pipe line 4 upstream of the valve, conveys pressure liquid, when the valve is closed, to a recess behind the ring 17 to expand it into sealing engagement with the gate 8, and a ring 19, concentric with the packing ring 17, throttles any leakage past the gate before the ring 17 is expanded so that the exterior of the ring 17 is not subjected to a pressure which may prevent its expansion. To enable the ring 17 to be removed without draining the upstream pipe line 4, an auxiliary ring 20, of rubber &c., clamped between rings 21, 21a, is provided, and is adjustable from a retracted position to the closed position, shown, by a series of studs 26 rotatable in sleeves 27 and engaging screwed bosses on the ring 21. The sleeves 27 serve to secure together the flanges 2, 3 of the valve and pipe line 4 respectively. In a modification, in which the packing ring is arranged upstream of the gate 8 and engages the outer surface thereof, the auxiliary ring 20 is dispensed with, it being necessary to drain the pipe line 4 before removing the packing. As in the previous example, the packing ring is clamped by a segmented ring and may be urged by hydraulic pressure into contact with the gate.
Patent GB-606149-A (GB)
Title: Improvements in and relating to a cotter for securing bicycle pedal cranks
IPC: F16B3/00
Filed: 1945-12-04
Abstract: 606,149. Securing cranks on shafts. JAQUAT, C. Dec. 4, 1945, No. 32797. [Class 80 (ii)] [Also in Group XXV] A cotter 1 for securing a bicycle pedal crank 6 to its shaft 5 has a flat portion 2 co-operating with a flat portion on the shaft and has a locking element 4 in screwed connection with the cotter, only a small portion of the locking element protruding from the crank. In modifications a cap-nut screws on to a threaded concentric portion of the cotter and is shouldered to put in the cotter hole.
Patent GB-633841-A (GB)
Title: Thermionic electron emitter
IPC: D01H9/04
Filed: 1946-11-05
Abstract: 633,841. Cathode materials and processing. POMERANTZ, M. A. Nov. 5, 1946, No. 32807. Convention date, Nov. 29, 1945. [Class 39 (i)] A thermionic cathode comprises a rigid selfcontained body composed principally of sintered thorium oxide, and electrical heating means supported by said body in intimate relation therewith to heat said body to an emitting temperature. The cathode may be made by fusing raw thoria in an arc furnace, after which the fused material is broken up and washed, firstwith hydrochloric acid and then with water. The material is then roasted at 900- 1000‹ C. in air, reground to reduce the size of the particles, and mixed with saturated thorium chloride solution to form a paste which is moulded to the required shape and allowed to set. After thoroughly drying, the moulded body is fired at 1900-2000‹ C. in an atmosphere of argon. Instead of pure thoria small quan- 'tities of other refractory oxides such as magnesia, beryllia, or alumina, or a mixture of refractory substances may be mixed with the thoria. Fig. 5 shows a cathode suitable for a magnetron wherein a heater coil 14 is embedded within the emissive material 13, the ends of the coil being connected to metallic end members 15, 16 provided with " hats " 23, 24. Fig. 7 shows another form of cathode wherein the heating element is a metallic coating 32 which may be formed by evaporating metal on to the emissive material 31 or may be a prefabricated sleeve of refractory metal such as molybdenum or tantalum. The Specification as open to inspection under Sect. 91 also describes the use of magnesia, berylla or alumina, or mixture of these or other refractory oxides instead of thorium. This subject-matter does not appear in the Specification as accepted.