baber/WOPTO huggingface dataset:
Patent GB-976298-A (GB)
Title: Magnetic tape recording and playback apparatus
IPC: G11B15/68
Filed: 1962-05-08
Abstract: 976, 298. Autochangers for tape cassettes. MINNESOTA MINING & MANUFACTURING CO. May 8 1962 [May 8 1961], No. 17674/62. Heading G5R. Each cassette contains a feed-spool 34 loaded with limp tape 37, Fig. 16 on to which a relatively stiff leader, 38 too wide to enter between the reelcheeks, and a trailer 39 are spliced, a resilient thread/rewind roller 48 engaging the reel-rim, or the leader 38 wound thereabout, for tape rewind and leader threading respectively, a guide path 171, Fig. 10 being provided for the leader to a selflatching take-up reel 19. At appropriate times, a knurled portion 15, Fig. 9 of the tape-drive capstan 13 engages an eccentric cam 239 and the resultant movements of the arm 235 index a ratchet wheel 230 to rotate a 10-step control cam-shaft 222. Over-centre toggle means may snap the arm into the dotted-line position, from which it may be returned by solenoid 251 as required by the progress of the cycle. One or more magazines having been loaded on to a tray 289, Fig. 1, an automatic cycle is initiated by a START button 147, or by the completion of a previous cycle, the tray 289 is lowered, the lowest cassette locked into position, the roller 48 engaged with the main drive belt, Fig. 4 and the leader 38 being advanced to the take-up reel 19, Fig. 10, past thickness gauging means 202 and the retracted pinch-roller 156. The leader 38, lightly pressed by the flange 92, Fig. 2 of the reel 19, which is driven at high speed, strokes the leader around the hub 80 (Fig, 11 not shown) after which the reel-torque is reduced and drive of the tape taken up by the capstan 13 and pinch-roller 156, roller 48 being retracted. At the end of the reel, the trailer, attached to the feed spool 34, acts on pins 182 to switch over to rewind (Fig. 10 after switching). Drive is discontinued at 13, 19 and a rewind idler 61, Fig. 4, engaged with the roller 48 to drive it oppositely to rewind the tape. When rewind is almost complete, the leader 38, thicker than the tape 37 is nipped at the thickness gauge 202, whose displacement causes delayed retraction of the drive roller 48 and the cassette locking means, the cassette proceeding on rollers to the "played tapes" compartment 262, where it is elevated, (pushing other played tapes before it) by a lifting platform 267 to a raised, latched position. A switch, preventing movement of the lift 267 until the cassette is loaded on to it turns the machine off when there is no further cassette to lift.
Patent GB-334862-A (GB)
Title: Improvements relating to vanadium catalysts for use in the oxidation of oxidisable gases
IPC: C01B17/79
Filed: 1929-06-08
Abstract: 334,862. Robson, S., and Lewis, P. S. June 8, 1929. Catalysts, preparation and treatment of; sulphur trioxide, catalytic production of.-A catalyst for the oxidation of sulphur dioxide is made by mixing a vanadium compound with an indifferent carrier and treating it in the cold with an acid gas such as sulphur dioxide, in the presence of moisture, until the product gives an acid reaction to litmus, and gas is no longer absorbed. The temperature must be sufficiently low to avoid removal of the water, which may be present in the gas. Any vanadium compound mav be used which will react with sulphur dioxide to yield vanadyl sulphate which dissolves in the water present and thus becomes distributed throughout the mass. The mixture is pelleted before or after the reduction, with a suitable binding agent such as sodium or potassium silicate and gums, e.g. gum tragacanth or gum arabic. The carrier may be pumice, kieselguhr, diatomaceous earth &c., or dried precipitated silicic acid. Catalyst promoters such as salts of tin, bismuth or manganese may be added. The catalyst. is immune to poisons and gives at 94 to 95 per cent conversion of sulphur dioxide to trioxide at a temperature of 400‹ C. Specification 23541/13 is referred to.
Patent GB-1103277-A (GB)
Title: Improvements relating to protecting an electrical circuit against overloads
Inventor: PEARCE MICHAEL ALFRED
IPC: G05F1/573
Filed: 1964-04-29
Abstract: 1,103,277. Protective arrangements. SPERRY RAND Ltd. 13 May, 1965 [29 April, 1964], No. 17715/64. Headings H2H and H2K. An overload protective arrangement comprises a resistance bridge 13, 14, 16 having one pair of diagonally opposed points A, C, connected to a power supply 11 and the other pair of points B, D connected to a triode valve or transistor 20, the protected load 14 constituting one arm of the bridge and the transistor or valve controlling a power reducing means 23 in the supply circuit. In the arrangement shown, the bridge is normally unbalanced so that the transistor 20 is conducting and current flows through a D.C. winding of a transductor 23. The core of the transductor is saturated so that a low impedance is presented to the A.C. supply. Should the load resistance decrease, then the bridge becomes substantially balanced and the transistor ceases to conduct with the result that the transductor is rendered substantially non- conducting though the " leakage " current through it is sufficient to enable the arrangement to restore when the fault condition is removed.
Patent GB-704270-A (GB)
Title: Improvements in or relating to wheel suspensions
IPC: B60G21/05
Filed: 1951-07-26
Abstract: 704,270. Spring suspensions; preventing lateral canting. BECK, O. July 26, 1951 [July 28, 1950], No. 17774/51. Class 108(2) A wheel suspension for road vehicles, comprising a rocker which is freely oscillatably pivoted to the framed structure of the vehicle and resiliently compressible means disposed at either side of and at substantially equal distance from the rocker pivot, at least one of the resilient means bearing upon a part associated with a wheel and being adapted to resiliently transfer on to the vehicle any substantially vertical displacement of the wheel in relation to the frame structure of the vehicle whilst the resilient means at the other side of the rocker pivot bear upon a different part of, or are associated with the vehicle and resiliently resist rotation of the rocker about its pivot, both the resilient means operating to jointly take up and to resiliently resist any mechanical force which causes a substantial vertical displacement of the wheel in relation to the vehicle frame structure. and to transfer it to a selected part of the vehicle, is characterized in that the rocker is pivoted centrally with respect to the vehicle to a part of the frame structure. In the arrangement shown in Fig. 1 coil springs 22 are disposed between each lower link 16 of a parallel link suspension and each end of a rocker 20 pivoted on a frame member 10: Compression of springs 22 is limited resiliently by rubbber buffers 24, 24<1> and 25, 25<1>. Shock absorbers 27 are connected between the link 16 and frame 10. In another arrangement, Fig. 3 (not shown), the shock absorbers are connected between the rocker and the lower link, either internally of or externally of the coil springs 22. In a further arrangement, Figs. 4 and 5 (not shown), lower suspension links are pivoted to the frame on a common axis, the upper links are dispensedwith and a shock absorber is connected between the frame and each lower link or between the latter and the rocker, the shock absorbers being disposed internally of or externally of coil springs between the rocker and the links. In an.arrange-- ment comprising a through axle, Fig. 6 (not shown), the axle is suspended from a rocker mounted similarly to that shown, by coil springs. Shock absorbers extend between the frame and the through-axle,. or between the rocker and the axle.
Patent GB-161923-A (GB)
Title: Improvements in or relating to gas-producer furnaces
IPC: C10B29/02
Filed: 1920-06-29
Abstract: 161,923. Kl÷nne, A., [Firm of]. April 12, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Blocks, special shapes of.-The walls of " gasproducing furnaces " having vertical or inclined chambers are built up of two special forms of blocks together with ordinary bricks. In one construction, Figs. 2 and 4, the blocks P forming the partitions between the flues H are of dovetail form with projecting end portions the size of an ordinary brick. These are laid with their projecting ends alternately at opposite sides, and are supported by other blocks L, Fig. 6, having portions offset to cover the joints. The walls are completed on the sides facing the chambers by ordinary bricks N. The edges of the blocks may be rabbeted or tongued and grooved. In a modification, the partition blocks are of dovetail form as shown in Fig. 4, but the supporting blocks are rectangular and of sufficient width to project into the flue and support the broad ends of the partition blocks. In another form, the partition blocks are dovetailed at both ends and rest on projecting portions of the wall blocks, the upper surfaces of these portions being recessed to accommodate the dovetails of the partition blocks.
Patent GB-168587-A (GB)
Title: Improvements in tobacco pipe cleaners
IPC: A24F9/10
Filed: 1921-06-30
Abstract: 168,587. Pfabe, F. Aug. 60, 1920, [Convention date]. Scrapers, pickers, and stoppers for tobacco pipes.-Radial spring blades b with curved rasps at the free ends are fixed in a handle a and fitted with a sliding ring c for contracting the tool when'not in use. The handle may serve as a pipe stopper and a hole is made in it to receive a cleaning-rod or picker e.
Patent GB-1239888-A (GB)
Title: Cathode ray tube manufacture
IPC: C09K11/78
Filed: 1970-04-15
Abstract: 1,239,888. Uses of luminescence. FORD MOTOR CO. Ltd. 15 April, 1970 [1 May, 1969], No. 17923/70. Heading C4S. [Also in Division H1] A photosensitive slurry containing Gd 2 O 3  or Y 2 O 2  particles with a stabilized pH of not more than 6 is treated with a source of fluoride ions to precipitate GdF 3  or YF 3  on to the oxide particles then applied to the face of a C.R.T. and exposed to light to fix the slurry and form a phosphor coating. The slurry may comprise isopropyl and polyvinyl alcohol, NH 4  dichromate and Eu doped Gd 2 O 3  to which NH 4 F is added and the pH adjusted with an acetic acid -NH 4  acetate system.
Patent GB-1424437-A (GB)
Title: Amidoxime deriatives
IPC: C07D271/07
Filed: 1973-04-13
Abstract: 1424437 N-substituted amidoxime-O-carbamates E I DU PONT DE NEMOURS & CO 13 April 1973 [18 April 1972] 17970/73 Heading C2C Novel amidoxime-O-carbamates of Formula I wherein R is C 3-12  alkyl or cycloalkyl; R<SP>1</SP> is C 1-6  alkyl; R<SP>2</SP> is H or C 1-6  alkyl; R<SP>1</SP> and R<SP>2</SP> together form a C 4  or C 5  polymethylene chain; R<SP>3</SP> and R<SP>4</SP> are independently H or C 1-3  alkyl groups provided that the total number of carbon atoms in R 3  and R 4  does not exceed 3 may be prepared by reacting a corresponding N-alkylamidoxime with an isocyanate or a carbamoyl halide or, when R<SP>3</SP> and R<SP>4</SP> are both hydrogen, by reacting an amidoxime hydrochloride with an alkali metal cyanate. Alkanohydroxamyl chlorides are prepared by reacting the corresponding aldoximes with chlorine in chloroform at 0 C. N-alkyl and N,N-dialkylalkanamidoximes are prepared by reacting alkanohydroxamyl chlorides with secondary or primary amines. 3-Butyl-4-methyloxadiazole is prepared by reacting 3-butyloxadiazole with methyl iodide in the presence of NaH and is hydrolysed with sodium hydroxide in ethanol to obtain N- methylvaleramidoxime. N-Methylvaleramidoxime is prepared by reduction of 3-butyl-4-acetyloxadiazole with LiAlH 4 . Pharmaceutical compositions having activity against hypertension for parenteral or oral administration comprise a compound of Formula I and a pharmaceutical carrier.
Patent GB-249385-A (GB)
Title: Improvements in and relating to watches
IPC: G04B37/10
Filed: 1925-07-14
Abstract: 249,385. Greengros, M. P., and Salvo, C. July 14, 1925. Watch cases. - A dust-proof fitting for the winding stem b of a movement mounted in a two-piece watch case consists of a sleeve a fitting tightly on the stem and having two flanges c and d between which engage the upper and lower frame e and f of the case.
Patent GB-564700-A (GB)
Title: Improvements in and relating to phosphors
IPC: C09K11/68
Filed: 1942-12-21
Abstract: 564,700. Luminescent materials. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 21, 1942, No. 18115. Convention 'date, Dec. 31, 1941. [Class 39 (i)] A phosphor containing a tungstate or a molybdate is fired with silica or a boron compound to eliminate or transform impurities which would otherwise impair the fluorescence. For example, 900 grams of tungsten trioxide, 240 of calcium oxide, and 20.8 of lead acetate may be mixed in a ball mill, dried at about 200‹C and then fired at 950 to 1100‹ C. About 5 per cent of silicic acid may then be added and the mixture fired at about the same temperature as before.. Boric acid may be used instead of silica.
Patent GB-219985-A (GB)
Title: Improvements in or relating to shaking screens
IPC: B07B1/28
Filed: 1924-07-29
Abstract: 219,985. Robins Conveying Belt Co., (Assignees of Savage, P. S.). July 31, 1923, [Convention date]. Reciprocating sieves are pivotally supported and driven by eccentrics 3 on the shaft 4 and are attached to the frame 2 by springs at a distance from the eccentrics. Preferably the springs are leaf springs 7 which are attached to the upper end of the sieve frame bv links 8 and are. mounted in a box 9 provided on the fixed frame 2. The extent to which the springs project is adjusted by a threaded rod 19 and clamping screws 15. The straps 6 on the sieve frame -which form the bearings of the eccentrics 3 are placed preferably at a third of the length of the sieve frame from its discharge end.
Patent GB-439975-A (GB)
Title: Improvements in and relating to the production of hard metal alloys
IPC: C22C1/05
Filed: 1934-06-19
Abstract: Hard metal alloys are produced by forming a colloidal suspension of a carbide of a metal belonging to the sixth group of the periodic system or a similar hard constituent, e.g. titanium carbide or silicides, borides or nitrides of the metals previously referred to or of titanium and another colloidal suspension of an auxiliary metal having a lower melting point, e.g. nickel or cobalt, emulsifying the separate suspensions together causing or permitting the suspended particles or aggregates of them to flocculate, separating the flocculated mass from the liquid and then sintering the said mass. The suspensions are formed in water and an ionizing agent, which is eliminated from the final product by evaporation, such as ammonium carbonate, may be added to the liquid.  In an example, colloidal suspensions in water of tungsten carbide and nickel to which suitable amount of ammonium carbonate e.g. 5 per cent by weight of the solution, has been added are mixed together and emulsified.  The flocculated precipitate produced is separated, dried in a vacuum and then sintered at 1750 DEG  C.
Patent GB-893509-A (GB)
Title: Guide apparatus for centrifugal blowers or pumps
IPC: F04D29/44
Filed: 1960-05-24
Abstract: 893,509. Centrifugal blowers and pumps. BUCHI, A. J. May 24, 1960 [Sept. 9, 1959], No. 18294/60. Class 110 (1). In guide apparatus for a centrifugal blower or pump comprising guide-ducts in two housing parts divided in a plane normal to the impeller axis, the guide ducts surrounding the impeller to receive fluid therefrom and each having a partly axially curved part directing the fluid into a laterally offset chamber or chambers, the curved part of each guide duct is open along the outer periphery of the housing parts, the openings being closed by a containing-wall enclosing the housing parts. In the singlestage blower shown, the impeller 1 discharges through a number of ducts 6 to a laterally offset volute 3. The ducts 6 are formed in casing parts 2, 5 divided in a plane normal to the impeller axis, each duct comprising a curved inlet part 6a, a straight diffuser part 6b and a curved diffuser part 6c. The parts 6c are curved axially to extend through the casing part 2 to join the volute 3 and are open along the outer periphery of the casing parts 2, 5, the openings being closed by a cylindrical outer wall 4a. The volute 3 may be laterally offset in the opposite direction to that shown so as to surround the inlet of the blower. The plane of division between the casing parts 2 and 5 may be offset so that the ducts 6 are unequally divided between the casing parts. Each duct 6 may be situated in a plane oblique to the impeller axis. The blower may be of multi-stage type, with the ducts 6 of the last stage opening into a volute and the ducts 6 of the other stages opening into interstage reversing passages.
Patent GB-556412-A (GB)
Title: Improvements in or relating to the wiring of terminal banks
IPC: H01B7/08
Filed: 1942-12-24
Abstract: 556,412. Cable and wire couplings. STANDARD TELEPHONES & CABLES, Ltd. Dec. 24, 1942, No. 18320. Convention date, Feb. 5. [Class 38 (i)] [Also in Group XXXIX] A multiplying strip for terminal banks &c. is formed by punching a grid of the shape shown in Fig. 1 from sheet metal, bending it double and inserting a strip of insulating material (e.g. paper), Fig. 2, and then applying a covering of paper and a thermo-setting or other artificial resin in a mould. Fig. 4 shows a number of such strips used for multiplying a group of switches so as to form a continuous ribbon cable. The bare portions are preferably connected by welding to the terminal tags and the pieces 3, 4 which initially connect all the conductors together are then cut out.
Patent GB-498596-A (GB)
Title: Improvements in and relating to magnetic record carriers
IPC: G11B5/64
Filed: 1937-07-01
Abstract: A magnetic record-carrier consists of a strip of a permanent magnet alloy comprising 15-50 per cent of nickel, 5-55 per cent of iron, and 30-75 per cent of copper, with or without up to 5 per cent of aluminium and up to 15 per cent of cobalt.  The alloy after casting or rolling is cooled slowly from 1050 to 400 DEG  C. or quenched, tempered at 400-800 DEG  C. and rolled to form a thin band which may be less than 0,02 mm. thick.  Reference has been directed by the Comptroller to Specifications 395,720 and 471,577.
Patent GB-573093-A (GB)
Title: An improved method of and means for removing froth and floating dirt from a flowing liquid
IPC: D21F1/54
Filed: 1943-11-05
Abstract: 573,093. Purifying liquids. BERTRAMS, Ltd., and STEWART, A. G. Nov. 5, 1943, No. 18369. [Class 46] Froth and floating dirt are skimmed and removed from a flowing liquid, for example, diluted pulp used in paper making, into a collecting trough by the joint action of their own movement and a current of air produced by creating a partial vacuum in the trough and providing a hooded entrance thereto. In the construction shown, a box c is provided with a hinged floor f along which froth a is collected during movement of the liquid b. The box has a collecting channel h with gauzecovered outlet i connected to a vacuum pump or other means of providing a partial vacuum 'inside the box. 'A front plate g is adjustable to control the flow of air into the box. Atomising sprays d, e assist in the removal of the froth.
Patent GB-723091-A (GB)
Title: Improvements in or relating to warp knitting machines
IPC: D04B23/02
Filed: 1950-07-24
Abstract: 723,091. Knitting - machines. WORMLEIGHTON, R. C. July 3, 1951 [July 24, 1950], No. 18375/50. Class 74 (2). The needles of each bed of a warp machine are positively controlled in their movement at all times by cams 13. The needles are secured in a bar 10 sliding in end guides and attached at each end to levers 18 one arm of which has a cam follower 20 engaging a groove in its cam 13. The yarn guides are shogged by pattern drums 43, 44 which are under the influence of a selecting cam 50 which is periodically rotated by pawl and ratchet mechanism 53, 51 driven by an eccentric 38. Controlling this mechanism 53, 51 is a pattern chain 60 driven by a second pawl-and-ratchet mechanism 54, 52 which chain causes a bluffing member to be rendered operative or inoperative to determine the rotation of the selecting cam 50. A bluffing member also renders the mechanism 54, 52 operative or inoperative and comprises a cam 47 mounted on the shaft 34 carrying the drums 43, 44. A tensioning device for the yarns comprises a felt-covered elliptical roller 63 over which the yarns pass and adjustable guides 65 for adjusting the arc of contact. Fabric take-up rollers are also provided. Specification 485,872 is referred to.
Patent GB-477613-A (GB)
Title: Non-drip spouts for coffee and like pots with a spout opening directed downwardly
IPC: A47J36/14
Filed: 1936-07-02
Abstract: 477,613. Teapots &c. HAUSSMANN, F. July. 2, 1936, No. 18376. Convention date, July 2, 1935. [Class 66] The outlet opening 1, 4 of the spout of a tea, coffee, or like pot of ceramic or like material is inclined downwardly and disposed above the maximum liquid level 5-6 in the vessel, the lower inside surface of the spout having throughout its entire length a fall towards the interior of the vessel. Specification 9917/86, [Class 66], is referred to.
Patent GB-320055-A (GB)
Title: Improvements in or relating to illuminative advertising apparatus
IPC: G09F13/14
Filed: 1928-06-26
Abstract: 320,055. Richards, Ltd., C., and Henderson, J. D. June 26, 1928. Prisms and radial elements, rotating; actuating. -In " daylight " signs means for repeatedly changing the colour consist of a number of transparent of translucent screens rotated simultaneously through one or more complete revolutions. The screens p<2>, of glass, celluloid, &c. and mounted optionally in frames, are arranged radially or otherwise on parallel spindles p, and may be in the form of prisms. The spindles are arranged transversely or longitudinally over preferably the entire area of the sign and are driven by a belt q from an electric motor e, or from a variable speed suction motor connected tc the induction pipe of the engine of a vehicle, or from the engine or road wheels of a vehicle.
Patent GB-380174-A (GB)
Title: Improvements in or relating to a method of and apparatus for molding hollow articlesof rubber latex or like siccative liquid by dipping
IPC: B29C41/14
Filed: 1931-06-26
Abstract: 380,174. Moulding hollow rubber articles. LATEX HOLDING CO., Second National Bank Building, Akron, Ohio, U.S.A.-(Assignees of Killian, F. L.; Akron, Ohio, U.S.A.) June 26, 1931, No. 18572. Convention date, Aug. 8, 1930. [Class 87 (ii).] Hollow thin rubber articles are made by passing formers 46, mounted on an endless conveyer 33 through tanks 60, 61 containing a rubber latex or rubber cement, the formers being dipped into the rubber solution and rotated on their own axes during the movement of the conveyer. Beads are rolled on the deposited rubber articles while still on their formers by rotary brushes 83 and the articles are then passed through a vulcanizing bath 88. Rotary brushes 98 strip the articles from the formers after the articles have been dusted with powdered starch, &c. the formers then passing on to rotary polishing brushes 99. The conveyer comprises links 35, Fig. 10, to which are secured cross-bars 37 having forked ends 41 in which are pivoted members 42 on which stub spindles supporting the formers 46 are freely rotatable. The stub spindles run on a guide rail 51, which occasions a frictional rotation of the formers as the conveyer moves, and which effects movement of the formers into and out of the various dipping tanks Hot air is blown through casings 68, 76 to dry the articles and steam may be blown through a casing 86. The starch &c. dusting powder is sifted from receptacles 94, Fig. 11, which are reciprocated by crank-driven rods 102, the powder falling on to the articles on the formers. The formers may be mounted in groups as on a board secured to the conveyer, and may be positively rotated as by rack-and-pinion gearing.