baber/WOPTO huggingface dataset:
Patent GB-629000-A (GB)
Title: Improvements in treatment of aluminium sheets
IPC: C25D11/04
Filed: 1946-12-23
Abstract: 629,000. Anodization of sheet aluminium. REYNOLDS METALS CO. Dec. 23, 1946, No. 37747. Convention date, Feb. 2. [Class 41] In the anodization of sheet aluminium 1 which is drawn from a roll 2, an auxiliary tank 5 and a main tank 10 are provided which contain anodizing solution of the same composition. The tank 5 has a roll C therein which is connected to the positive terminal of the source of current. At the surface of the tank 10 where the sheet enters the solution, insulating barriers 16 are provided which prevent electrical action resulting in striations across the sheet. The cathodes comprise a lower plate 11 with upwardly-extending plates and an upper plate 12 with downwardly extending plates, the sheet 1 passing between the -plates. The electrolyte in tank 10 is circulated by means of a pump 26. The sheet 1 is rinsed in a tank 18 and dried by an electric heater 24 before being wound on a roll 3. Specification 628,999 is referred to.
Patent GB-1221207-A (GB)
Title: Improvements in or relating to recording cameras
Inventor: MOSS EDWARD
IPC: G03B39/00
Filed: 1968-08-07
Abstract: 1,221,207. Recording cameras. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. July 23, 1969[Aug. 7, 1968], No.37769/68. Heading G2A. A recording camera comprises a flat disc 17 carrying a circular sheet 20 of photographic material, which disc can be rotated at high speed. A number of cathode ray tubes 23 are each mounted to produce a spot image on film sheet 20, the disposition of the tubes being such that as the film sheet rotates, the spot images lie on different but concentric tracks, two such tracks 51 being shown. The camera is built in the form of three castings, 1, 2, and 3, bolted together. An aircooled motor 4 mounted on casting 2 drives a shaft 5, whose lower end is integral with a circular plate 16. The flat disc 17 is held against plate 16 by means of a knob 18 screwed on to the shaft, and thus disc 17 and plate 16 exert a clamping action on the film sheet 20 located between them. The upper casting 1 surrounding motor 4 is divided by radial walls into seventeen compartments, in each of which is mounted a cathode ray tube 23 with its axis parallel to shaft 5, which can be adjusted axially for focusing purposes. On the lower casting 3 is mounted a plate 31 having seventeen sealed glazed apertures 32 in register with the cathode ray tubes, and below each aperture is a demagnifying lens 33. Tubes, apertures, and lenses are spaced from shaft 5 at one of two alternative distances, so that the image spots from alternate tubes lie on one of two concentric tracks 51. Above plate 31 is a cover plate 34 having corresponding apertures in register with those in plate 31, and between the plates is a shutter plate 35 which also has corresponding apertures. Plate 35 can be rotated by an electrical control, so that it acts as a shutter. Casting 3 is air-tight, and can be connected to a vacuum pump so as to reduce the atmospheric drag on the rotating parts. The motor can rotate at up to 12, 000 rpm, and the high-speed rotation causes the film to flatten on the disc 17 by centrifugal force to within limits of . 001 inch, which is necessary because this is the order of the depth of focus.
Patent GB-380986-A (GB)
Abstract: 380,986. Knitted fabrics ; circular knitting-machines. STANDARDTRUMP BROS. MACHINE CO., Beach Street, Wilmington, Delaware, U.S.A.- (Assignees of Houseman, W. L. ; Southampton Road, Somerton, Philadelphia, U.S.A.) Nov. 7, 1931, No. 30948. Convention date, Jan. 29. [Class 74 (ii).] A tubular reverse plated fabric comprises a portion formed by rotary knitting and two " split " portions formed by reciprocatory knitting in two sections joined together, the arrangement being such that one or more yarns common to the rotary portion and to one of the split portions provide a continuous reverse plated or other design. The driving gear 4 and needle cylinder 2 are movable axially for adjustment with an annular non-rotating member 8 by plungers 10 resting on yoke levers 14 under control of the pattern mechanism. Slides 92, 94 carrying cams 62, 64, 66, 68 are movable radially in a segmental member 110, Fig. 14 (not shown), which also supports fixed cams 54, 56, 60. Elements 112 passing through the segmental member and screwing into brackets 134 carry pinions 114 the rotation of which under control of an horizontally arranged main cam disc 30 imparts simultaneous vertical movement to the instep cams 62, 66. Cams 78, 80, carried on radial slides, are also controlled by the main cam disc. One of two pattern chains acts on a lever 207 to control a reverse-plating trick wheel 212, having removable leaves 214 with butts broken out to form a pattern. The other chain controls a similar trick wheel 238 which comes into action during clockwise reciprocation. The trick wheels act through intermediate connections on the jacks 42 in a dial 40 and thereby on needle deflecting members 44 lying in slots common to the respective needles. The needles may be deflected irrespective of the trick wheels by the action of cams 258, 262 on levers 254, 260. The widening picker 88 is lowered into action by a lever actuated by a cam 158. The cams 62, 64, 78, 80 are independently adjustable by means of washers to equalize the lengths of the loops drawn. If the yarns are suitably selected and knitting occurs at both feeds during rotation the split portion formed at the instep feed may be given an appearance identical with that of the circularly knit portion, by the use of the trick wheel 212 alone. Specifications 271,441, [Class 6 (i), Cultivating implements &c.] and 294,891, [Class 74 (ii), Knitting &c.], are referred to.
Patent GB-811891-A (GB)
Title: Improvements in and relating to self locking bottle holders
IPC: A47G29/24
Filed: 1956-12-13
Abstract: 811,891. Milk bottle holders. ROSSOUW, H. D. S., ROSSOUW, L. P., LOUW, J. A., and ROPER, C. S., [trading as UNIVERSAL CYCLE STAND CO.]. Dec. 13, 1956 [Dec. 15, 1955], No. 38136/56. Class 44 [Also in Group XIV] A milk bottle retaining device comprises a bottle support 5 recessed at 23, a head part mounted above the support 5, a cap element 9 pivoted at 11 to the head part and urged by spring 18 to an upwardly inclined release position, a spring loaded latch 17 for locking the cap element 9 in a horizontal position, and a plunger 20, 21 extending from inside a building or door 3, on which the device is mounted, and into the headpart for releasing the latch 17 when depressed for unlocking the cap element 9. The support 5 is vertically adjustable, for different size bottles, on a channelled bar 1 which has keyhole slots 4 in which a pair of buttons 8 on support 5 engage, the bar 1 being secured to a door or building by screws 2 which are hidden when a bottle 6 is in place. The head part comprises a narrow vertical casing 12 having a slotted flange 24 for engagement over a screw 25 in the door or building 3, the casing 12 engaging the top of bar 1. The latch 17, pivoted at 16 in casing 12, engages under a radial projection 14, on a lug 10 of cap element 9, to hold the cap element 9 horizontal and so lock a bottle 6 in the device; the spring 18 abuts the lower end of latch 17 and a second projection 15 on lug 10. Depression of push-button 20, 21 rotates the latch 17 out of engagement with projection 14 so that spring 18 causes the cap element 9 to swing to the release position; the swing being limited by the edge 19 of casing 12. If the cap element 9 is moved to the locked position before insertion of a bottle 6, it may be released by the insertion of a bar in a bore 22 in lug 10 to force the top end of latch 17 from engagement with projection 14. Several additional supports, Fig. 2, not shown, may be used for retaining several bottles, in which case the top of the additional bottle projects into recess 23 in support 5 and is locked in the device by the bottle 6 on support 5.
Patent GB-320817-A (GB)
Title: Film winding means for cinematograph apparatus
IPC: G03B21/32
Filed: 1928-12-27
Abstract: 320,817. Fairweather, H. G. C., (Picture Machine Service Corporation). Dec. 27, 1928. Kinematograph apparatus. - In film-winding means in which the film is unwound from the centre of a roll and is wound up on a reel, the reel is driven from the projection mechanism, and the drive is transmitted through a manually controlled clutch to the un-winding means. Preferably the transmission is made through a slightly reducing gear so as to compensate for the larger circumference of the unwinding roll. In the construction shown in Fig. 1, the winding reel 40 is driven and communicates, through the gearing 46, 50, 54, shaft 64 and gearing 68, 70, motion to a tubular spindle 74, Fig. 3, mounted in bearings on the frame-work 106. The plate 12 on which the unwinding roll 10 is clamped carries a spindle 18 with a friction disc 72 normally resting on the top oi the gear wheel 70. The disc is lifted when it is desired to stop the drive by a bell-crank lever 84 actuated by a cam 92 and engaging the lower end of the spindle 18. The film 20 passes from the roll 10 between guide rollers 22, 24 on a swivelling arm 26 and over guide pulleys 30, 34, 36 to the feed sprockets.
Patent GB-1021691-A (GB)
Title: Improvements in heat-resistant and oxidation-proof materials containing molybdenum disilicide
IPC: H05B3/14
Filed: 1962-10-09
Abstract: A heat-resistant and oxidation-proof material contains molybdenum silicide MoSi2 and a minor amount of SiO2 and 0.06-70 by weight of silicon oxynitride.  Any Si3N4 present constitutes less than 1% by weight of the nitrogen-containing material.  The SiO2 may be derived from bentonite.  In an example, 1% silicon oxynitride, 94% MoSi2 of grain size less than 8m , and 5% bentonite in an aqueous slurry are mixed and extruded, sintered in hydrogen at 1200  DEG C., and then in air at 1550  DEG C.ALSO:A heat-resistant and oxidation-proof material contains molybdenum silicide MoSi2 and a minor amount of SiO2 and 0.06-70% by weight of silicon oxynitride.  Any Si3N4 present constitutes less than 1% by weight of the nitrogen-containing material.  The SiO2 may be derived from bentonite.  In an example, 1% silicon oxynitride, 94% MoSi2 of grain size less than 8m , and 5% bentonite in an aqueous slurry are mixed and extruded, sintered in hydrogen at 1200 DEG  C., and then in air at 1550 DEG  C.  Silicon oxynitride is made by heating a mixture of 200 g. Si powder of 75m grain and 32 g. NaOH at 1400 DEG  C. in a 1 : 1 N2/Ar atmosphere. The product is then leached out in a HF/HNO3 mixture and the residue contains traces only of Si and Si3N4.
Patent GB-1135787-A (GB)
Title: Process for the production of pigmentary tio
Inventor: TWIST WALTER
IPC: C09C1/36
Filed: 1966-08-26
Abstract: 1,135,787. Titanium dioxide production. BRITISH TITAN PRODUCTS CO. Ltd. 9 June, 1967 [26 Aug., 1966], No. 38299/66. Heading C1A. In the production of pigmenting TiO 2  by preparing an aqueous acidic TiSO 4  solution, nucleating the solution and thermally hydrolysing to precipitate TiO 2 , the conditions of hydrolysis are controlled to provide a substantially constant rate of precipitation of hydrous TiO 2  for at least 60%, usually for at least 75%, and preferably for 100% of the time of hydrolysis while maintaining the rate of precipitation throughout the process below 1À2%, preferably between 0À3 to 0À8%, per minute of the titanium (expressed as TiO 2 ) in the initial solution. The aqueous acidic TiSO 4  solution is preferably prepared by digesting ilmenite or a titaniferous slag derived therefrom, in concentrated H 2 SO 4  at elevated temperatures, followed by lixiviation with water or dilute H 2 SO 4 , reduction with e.g. scrap iron, and finally clarification of the solution. When the iron content is high some ferrous sulphate may be removed by crystallization after cooling and/or concentrating. The TiSO 4  solutions which are to be subjected to hydrolysis should have a titanium concentration (expressed as TiO 2 ) between 70-300, preferably 100-230, gms./ litre; an Fe/Ti ratio (expressed as Fe and TiO 2 ) not greater than 1À0 and particularly not greater than 0À5, and an acid/Ti ratio between 1À26 and 2À2 and particularly between 1À6 and 2À0. Nuclei for seeding the TiSO 4  solution are added in a quantity (expressed as TiO 2 ) equivalent to between 0À2% and 5%, preferably 0À5% to 2À0%, of the Ti (expressed as TiO 2 ) in the TiSO 4  solution and are preferably obtained by the thermal hydrolysis of an aqueous solution of TiCl 4 . Rutile structure-inducing rather than anatase structure-inducing nuclei are preferred. The precipitation of TiO 2  during thermal hydrolysis by conventional methods follows a sigmoid curve when the amount of precipitation is plotted against time. Consequently a substantially constant rate of hydrolysis may be obtained by temperature variation, viz:- where the precipitation rate is slower than required the temperature is increased and when the precipitation rate tends to become higher than required the temperature is decreased thus "flattening" the sigmoid curve. The precipitation rate may also be controlled by adjusting the viscosity of the liquor during precipitation, e.g. by the addition of a viscosity modifying chemical(s), at the appropriate stages or the precipitation rate may possibly be altered by modifying the nuclei added to the liquor, e.g. by the addition of a nuclei-modifying chemical during the external preparation of the nuclei. Concentrated liquors may require at some stage thermal hydrolysis temperatures in excess of their normal boiling-point to maintain an acceptably constant rate of precipitation and this will require the application of pressure.
Patent GB-1028888-A (GB)
Title: Improvements in and relating to the manufacture of cellular polymeric material comprising a polyvinyl-aromatic compound
Inventor: ROPER ALEC NORMAN
IPC: C08J9/14
Filed: 1964-09-21
Abstract: An expandable polyvinyl-aromatic compound is prepared according to Claim 1 of Specification 997,356 with the modification that the vaporizable expanding agent comprises a mixture of from 30 to 80% by weight of iso-pentane, and n-pentane.  Preferred pentane mixtures are those containing between 60 and 40% of n-pentane and between 40 and 60% of iso-pentane with not more than 5% of non-pentanes (percentages by weight).
Patent GB-1012977-A (GB)
Title: Containers which can be stacked
IPC: B65D21/02
Filed: 1963-10-01
Abstract: 1,012,977. Stackable containers. FORM GESELLSCHAFT FUR FORMGEBUNG. Oct. 1, 1963 [Nov. 12, 1962], No. 38552/63. Heading B8D. A container of plastics material has four flat side surfaces, e.g. as shown at 3, 4 and 5, a circular groove 21 in its base for stacking purposes, and further grooves, e.g. 22, normal to one another and each capable of accommodating the handle 35 of a container stacked below. The head 24 of the container is concave or flat, Fig. 9 (not shown). As shown in Fig. 10, the handle may be straight. A spout 40 may be in line with the handle, or offset from it, Fig. 2 (not shown). The basal grooves may be omitted.
Patent GB-934884-A (GB)
Title: A machine for finishing gear wheels by shaving
Inventor: HURTH FRITZ
IPC: B23F19/06
Filed: 1960-11-11
Abstract: 934,884. Gear shaving. H. HURTH, and F. HURTH. Nov. 11, 1960, No. 38770/60. Class 83 (3). A gear shaving machine comprises a worktable tiltable by a rotary cam for crowning the gears. The machine includes a circular table 11  rotatably adjustable on a frame 10, a carriage 12 slidable on the table, a plate 13 rotatably adjustable on the carriage, a tiltable table 15 pivoted at 14 on plate 13, a plate 15a rotatably adjustable on table 15, centres 17, 18, for holding workpiece 16, and a shaving cutter 20. The direction of longitudinal feed may be in direction 60 or 61, and the feed drive is supplied through a shaft 21, bevel gears 22, 23, spur gears 24, 25, clutch 26a, and screw and nut 26, 27. Cam 40 for tilting table 15 is rotated by a gear 28, bevel gears 29, 30, 32, 33, 35, interchangeable gears 37, 38, and cam shaft 39. An adjustable wedge 41, Fig. 4, is placed between cam 40 and table 15, or the wedge may be replaced by a roller adjustable by means of an eccentric sleeve. The cam may be made of several elements 52-54, Figs. 7, 8, adjustable relative to each other. In a modification, the cam 40, Fig. 3, acts on a lever 43 carried by a screw 49 adjustable by a worm and wheel 50, 51, and a roller 46 is adjustable along lever 43 to vary the amplitude of the tilting of table 15. The transmission from cam 40 to table 15 may be effected by mechanical, hydraulic, pneumatic or electrical servo control systems. If the crowning is produced without any longitudinal feed, clutch 26a is disengaged and a cam disc 56, Figs. 5, 6, is attached to cam shaft 39. Adjustable cams 57 are screwed on to the disc which actuate switches 58, 59, to reverse the direction of the drive.
Patent GB-1476489-A (GB)
Title: Thin film magnetic storage device
IPC: G11C19/08
Filed: 1974-09-05
Abstract: 1476489 Magnetic domain devices BASF AG 5 Sept 1974 [6 Sept 1973] 38811/74 Heading H3B A magnetic domain device, e.g. a shift register, has low coercivity strip channels 24 in a high coercivity layer and domain propagating conductors 41, 42 and 61, 62 intersecting the channels at right angles and arranged in staggered fashion as shown in two planes parallel to the layer. The conductors are at least as wide as the channels and are photoetched out of copper coated on both sides of a polyester sheet 50 and are pulsed in a predetermined sequence of polarities to drive domains for electric or optical read-out and electronic recycling. The channel layer is of 64 : 15 : 21 : NiFeCo alloy vapour-deposited on an Al or Ag layer evaporated on a glass, ceramic or metal substrate 10. The Al or Ag is removed by photoetching in the channel locations so that the alloy layer is deposited directly on to the substrate which has a smoother surface than the Al or Ag layer and therefore a lower coercivity. Alternatively an over-layer of ferromagnetic material of high coercivity and possibly spaced from the channels by an SiO layer is exchangecoupled with the domain layer outside the channels to define the channel boundaries, or Cu or Au may be diffused into the domain layer.
Patent GB-839906-A (GB)
Title: Reaction products of bis (2:3-epoxycyclopentyl) ether with a polyfunctional amine compound
IPC: C08L63/00
Filed: 1957-12-18
Abstract: A resin is made by reacting, preferably at 30-250 DEG  C., bis-(2:3-epoxycyclopentyl)-ether with a compound having at least two amino hydrogen atoms which may be on the same nitrogen atom or on different nitrogen atoms.  The amino compound may be an aliphatic, aromatic or heterocyclic mono- or poly-amine, a polyalkylene polyamine, an amide, a low molecular weight polyamide, a reaction product of a polyamine with an epoxy compound (including a polyglycidyl polyether) or an addition product of a polyamine and a vinyl compound.  A large number of such amino compounds are specified.  Solid resins result when the reaction mixture contains 0.3-4.0 amino hydrogen atoms per epoxy group and the reaction mixture may either be cast to form buttons, combs, toys, brush handles or structural parts for instrument or radio cabinets, or may be applied to a surface as a coating and subsequently hardened.  Fillers or pigments, e.g. talc, wood flour, alpha-cellulose, titanium dioxide, antimony oxide or carbon black may be added.  Anion-exchange resins result when the reaction mixture contains 1-3 amino hydrogen atoms per epoxy group.  Liquid resins containing reactive amino or epoxy groups result when the reaction mixture contains more than 4 amino hydrogen atoms or less than 0.3 amino hydrogen atoms per epoxy group. Such liquid resins may be used in coating formulations with a polyfunctional hardener, e.g. a polyhydric alcohol or phenol, a polycarboxylic acid or anhydride, a polyfunctional amine, or the reaction product of a polyhydric phenol and epichlorhydrin.  Those liquid resins containing epoxy groups may be used to stabilize and plasticize polyvinyl chloride, polyvinylidene chloride or chlorinated rubbers.  Specification 793,915 is referred to.
Patent GB-1455055-A (GB)
Title: Method of perating a storage tube
IPC: G11C11/23
Filed: 1974-09-10
Abstract: 1455055 Cathode-ray storage tube MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 10 Sept 1974 [5 Nov 1973] 39396/74 Heading H1D To erase, write and read a record in stored charge on the surface 15 of an insulating target 14 carrying a mesh electrode 16 in a storage tube, the electrode 16 is set to a voltage V above the cathode 21 of an electron gun which produces a beam scanning the target, said voltage V controlling the ratio 8 of secondary electrons emitted to primary electrons absorbed: for erasing V is set to make #> 1 with the beam unmodulated, for writing 8 is made <1 with the beam modulated with the record to be written, for reading 8 is made <1 the beam being unmodulated. The target is made of polyimide or copolymer of amides and imides, for which 8 exceeds 1 (see Fig. 1) for voltages more than 50 volt above cathode 21. To erase V is set to supply 36 of more than 60 volt above cathode when, 8 being >1, nett negative charge is lost to grid 20 until none is left; grid 20 is then set at the mesh 16 potential V with further unmodulated scan to make the charge on surface 15 uniform. Optionally at this point V on source 64 may be reduced to 3-7 volt, with which scan further ensures uniformity of charge distribution. For writing V on source 60 is set to 20-50 volt, when #<1, and scanned by a beam modulated by grid 22, negative charges accumulating to bring the target potential locally down not below cathode potential. For reading V on source 62 is set between 10 volt and the writing potential, e.g. 15 volt. With unmodulated scan, electrons are deflected by stored negative charges into adjacent mesh elements, giving an output signal at the terminal shown schematically at 34, the output being only slightly affected by variations in V; any charge stored during reading does not degrade the record. Electron illumination from both sides of the target is possible, with one gun reading and a second writing and erasing.
Patent GB-394891-A (GB)
Abstract: 394,891. Cables. CABLON, Ltd., 296. High Holborn, London. Jan. 3, 1933, No. 216, Convention date, Jan. 5, 1932. [Class 36.] To facilitate drawing a multicore cable through a conduit the separate cores each comprising a conductor a, insulation b, and lead sheath c are helically round and in contact with a central steel core d. The whole may be protected against abrasion in drawing through by an open wire helix or taping. Specification 280,600, [Class 36, Electricity, Conducting &c.], is referred to.
Patent GB-1192186-A (GB)
Title: Improvements in or relating to Electrical Switches having Sealed Housings
Inventor: WESTON RALPH BERTUS
IPC: H01H33/06
Filed: 1967-08-30
Abstract: 1,192,186. Liquid-break switches. PLASTICS Inc. 30 Aug., 1967, No. 39663/67. Heading H1N. A switch has a sealed housing A including a body 19 of transparent material and end closure plates 20, 23 sealed to the body. At least one pair of spring contact blades 34 is mounted on the plate 23 so as to be insulated from one another and biased to move into contact with one another. A switch member 60 is slidably mounted on the other plate for movement into the position shown in which it separates the blades to interrupt the circuit between them. The housing is filled with transparent oil so that the blades can be seen through the body 19 and the oil. The member 60 may be wholly of insulating material, but in an arrangement having two pairs of contact blades 34, the member 60 may have conducting strips 39 so that when the blades are separated, each blade of one pair is connected to the respective blade of the other pair. In this switch arrangement the member 60 is carried by two rods (one shown) which extend through the plate 20 to a transverse bar 67. This bar may serve as the operating member or be moved by a pivoted lever 69 which may be latched in its upper position by a pivoted latch arm 70, the end of which may engage in an indentation 72 in the plate 20. The body A is cylindrical and it is supported in a pressed-out part 16 of a mounting plate 11.