baber/WOPTO huggingface dataset:
Patent GB-950481-A (GB)
Title: Process and apparatus for preparing drinking water from insalubrious crude water
IPC: C02F1/28
Filed: 1960-06-16
Abstract: <PICT:0950481/C3/1> Impure and brackish waters are rendered drinkable by treating with a pulsed D.C. power in an electrolytic chamber 4 whereby organic material is flocculated, and then passing it to a decanting chamber 6 where the inorganic salts are decomposed and precipitated, and the bulk of the flocculated material settles out, the exit water then flowing through a sand filter 8, an activated charcoal filter 9, to a sterilizing chamber 12 containing silver electrodes, and finally to a settling chamber 14 where the oligo-dynamically charged water matures and homogenizes before use. The electrolytic chamber 4 contains electrodes of different metals, e.g. stainless steel and aluminium, which release ions of the metal as well as oxygen to flocculate and decompose impurities.  The aluminium electrodes are preferably a little larger than the steel, and both are operated at 6-12 V. At intervals, the pulsed current is also reversed to depolarize the electrodes. The decanting chamber comprises several concentrically disposed chambers communicating through perforations which are staggered. The apparatus is operated as a self-contained transportable unit, the upper part of the casing 16a containing tapped transformers, rectifiers, and circuitry required, with meters to regulate the process at each stage.
Patent GB-221522-A (GB)
Title: Improvements in or connected with gas producers
IPC: C10J3/80
Filed: 1924-09-08
Abstract: 221,522. Morawski, F. Sept. 7, 1923, [Convention date]. Void Published under Sect. 91 of the Act]. Producers.-A gas producer is provided with a water jacket the hot water from which is sprayed into the incoming air blast so that the air is heated and saturated before reaching the fuel bed. Hot water from the jacket B passes by a, pipe C to a spray G in a vessel H having an air inlet V, the heated and saturated air entering the producer A by a pipe Y. The water collecting in an overflow vessel J is raised by a pump L to a cistern N connected by a pipe Q with the water jacket B, and by raising or lowering the cistern N, the pipes leading to which are flexible, the quantity of water sprayed into the vessel H may be regulated.
Patent GB-577211-A (GB)
Title: Improvements in or relating to detachable cuffs for shirts and like garments
IPC: A41B7/04
Filed: 1943-12-20
Abstract: 577,211. Shirt cuffs. BETTS, M. Dec. 20, 1943. No. 21368. [Glass 141] A detachable and reversible cuff has a fastening strip along one edge connected by two cover flaps. As shown in Fig. 1, two rectangular pieces 1 and 2 of soft material are sewn together by a line of stitches 3 along three edges thereof. Along the fourth edge a strip 5 is sewn between the two pieces which form the two cover flaps 7 and 8, and is provided with a row of equally spaced button-holes 9. The end of the sleeve 4 has a strengthening band 11 which is provided with buttons 12 on the outside which co-operate with the holes 9. A pair of buttons 13 co-operate with holes 10 at each end of the flaps beyond the strip 5, bringing them together to conceal it. In an alternative form, the flaps may be sewn on either side of a single-layer cuff which then forms the strip 5, or a cuff of double material may have a flap secured on one side only, that side forming the strip and the other side corresponding to the second flap.
Patent GB-420965-A (GB)
Title: Improvements in slips for ladies' wear
IPC: A41B9/06
Filed: 1934-07-21
Abstract: 420,965. Ladies' underwear. SUSSBERG, V. L., 450, West End Avenue, New York, U.S.A. July 21, 1934, No. 21424. [Class 141] The front and back parts of a ladies' undergarment of the type known as a slip each comprise a brassiere portion 6, 7 formed of panels of irregular pentagonal shape and a body portion 3, an angular portion 18 of which projects centrally between the panels 6, 7, which may overlap at 21. The brassiere and body parts may be cut on the bias, and the bottom edge of each brassiere portion may be curved upwardly. The slip is provided with adjustable shoulder straps 22.
Patent GB-421465-A (GB)
Title: Improvements in or relating to rotary transformers for direct electric currents and electric motor equipments operated in connection therewith
IPC: H02K47/16
Filed: 1933-06-21
Abstract: 421,465. Rotary transformers. PESTARINI, G. M., 4, Tapton House Road, Sheffield. June 21, 1933, No. 21476 /32. [Class 35] A rotary transformer of the metadyne type transforming continuous-current at constant voltage into a constant continuous-current has a single rotor winding 7 connected to two commutators 8, 9, the primary brushes 3, 4 and secondary brushes 5, 6 being arranged so that the brush 3 on one commutator connected to the point of highest potential is followed in the direction of rotation by a brush 5 or 6, Fig. 1, or 6, Fig. 5, which is associated with the other commutator. One primary brush may be associated with one commutator and the other primary brush and the two secondary brushes with the other commutator. The load, comprising a motor or two motors 10, 11 in series may be connected across the secondary brushes 5, 6 as shown in Fig. 1. The fields 17, 18 of the motors are separately excited from an exciter 19. If the load is divisible into two substantially similar groups, one group of motors 10 may be con. nected across the brushes 3, 5 and the other 11 across the brushes 4, 6, as shown in Fig. 5, additional series field windings being provided on the motors in this case. In the arrangement shown in Fig. 5, the secondary brush 5 and the high potential primary brush 3 are associated with the same commutator.
Patent GB-447713-A (GB)
Title: Improvements in and relating to the treatment of metals or alloys containing tin
IPC: C22B25/06
Filed: 1935-07-29
Abstract: In a process for treating tin-bearing metal such as tin-lead or tin-antimonial lead, a molten bath of such metal is treated with an oxidizing agent in the presence of lead chloride, the tin being oxidized and concentrated in the slag.  The oxidizing agent used may be air which is introduced through a pipe into the bath or a solid substance such as litharge nitre or lead oxide-lead sulphate.  The lead chloride may be used alone or mixed with other salts such as sodium chloride.  The lead chloride is recovered from the slag either by fuming or by leaching the slag with a not concentrated brine solution and recovering it from the leach solution.ALSO:In a process for treating tin bearing metal such as tin-lead or tin-antimonal lead, a molten bath of such metal is treated with an oxidizing agent in the presence of lead chloride, the tin being oxidized and concentrated in the slag.  The oxidizing agent used may be air which is introduced through a pipe into the bath or a solid substance such as litharge, nitre or lead oxide-lead sulphate.  The lead chloride may be used alone or mixed with other salts such as sodium chloride. The lead chloride is recovered from the slag either by fuming or by leaching the slag with a hot concentrated brine solution and recovering it from the leach solution.  The residue containing the tin may be reduced with coke to produce metal of high tin content. In an example, an alloy containing 72,2 per cent of lead, 4 of tin, 22,1 of antimony, 0,28 of arsenic and 0,89 of copper was treated with an eutectic mixture of lead and sodium chlorides and then litharge added, the bath being stirred for an hour at 950-1000 DEG  F.  The tin slag was skimmed off and the process repeated.  The final metal container 76,1 of lead, 0,1 of tin, 21,9 of antimony, 0,73 of arsenic, and 0,62 of copper.
Patent GB-276030-A (GB)
Title: Lighting mirror-system
IPC: G03B21/20
Filed: 1927-08-16
Abstract: 276,030. Strecker, F. Aug. 16, 1926, [Convention date]. Optical projection systems; reflector systems. - A mirror-system for optical projections and for illuminating is obtained by subdividing known concave-mirrors, such as the parabolic mirror a indicated in dotted lines in Fig. 6, by meridional or like dividing-lines into parts such as d, g, which are arranged at an angle to their original positions so that the rays reflected by the parts wholly or partly overlap. The Specification as open to inspection under Sect. 91 (3) (a) comprises also an adjustable arrangement of the parts of the mirror. This subject-matter does not appear in the Specification as accepted.
Patent GB-1317496-A (GB)
Title: Railway switch or points heater
IPC: E01B7/24
Filed: 1971-04-19
Abstract: 1317496 Railway points heater INDUSTRIELE ONDERNEMING ARMA NV 19 April 1971 [4 Feb 1970] Headings F4F and F4T A railway switch or points heater comprises a plurality of burners 3 (Figs. 1 and 2) connected via pipes 13 to a common burner supply pipe 2 for a mixture of gas and air from a gas-air mixer 1 (Fig. 5, not shown) where air is drawn in through an air induction cap (18) by means of gas supplied at pressure by a gas jet (17) connected to a gas pipe 16. The burners 3 are each connected to a common flame propagation pipe 5 which is connected to the common burner supply pipe 2 via flame flashback preventing means (Fig. 3) in the form of a plurality of narrow ducts 14 in head 25 of a brass throttle member 6. Closure of switch 28 opens a solenoid operated valve 30 in the gas pipe 16 and simultaneously actuates the ignition system to produce a periodic spark at electrodes 8 of igniter 15, fed via ignition transformer 26. The gas-air mixture fills the common burner supply pipe 2, the connecting pipes 13, all the burners 3 and also the common flame propagation pipe 5 at reduced pressure via the throttle heads 25. This mixture is ignited in the pipe 5 by a spark at the electrodes 8 and the flame is propagated via a connecting member 7, a flexibly woven asbestos tube 10 telescoping therewith and a connecting member 24 to flame chamber 23 between a ceramic burner plate 4 and a gauge 22, thus igniting every burner 3. Should a burner 3 become extinguished, it is ignited by the other burners 3 via the common flame propagation pipe 5. Igniter sparks subsequent to ignition act as reserve sparks should all the burners 3 become extinguished. The asbestos tube 10 is held in place within protective tube 11 by hose clips 12 and a tension spring 9. Each connecting pipe 13 has a left-hand and right-hand screwthread to allow adjustment of the distance f e.g. 2 or 4 mm. between burner mouth 20 and web 19 of rail 21. The adjacent parallel rectangular pipes 2 and 5 are secured by saddles (31) (Fig. 4, not shown) to supports (32) disposed beneath the nuts (33) of an existing rail weld (34) or rail-sleeper connection. Reference has been directed by the Comptroller to Specification 837,748.
Patent GB-405041-A (GB)
Title: Improvements in induction furnaces
IPC: H05B6/24
Filed: 1932-08-03
Abstract: 405,041. Electric induction furnaces. STOBIE, V., Oakfield, Ryton-on-Tyne. Aug. 3, 1932, No. 21736. [Class 39 (iii).] In a furnace comprising a coil b surrounding a crucible a the flux is concentrated axially by a magnetic core d arranged wholly or partially within the coil but terminating below the bottom of the interior of the crucible, the cross-section of the core being less than one-third of the cross-section of the space enclosed by the coil. The Provisional Specification refers to Specification 319,802, [Class 39 (iii), Heating by electricity].
Patent GB-1189528-A (GB)
Title: Apparatus for Automatically Joining Yarn Ends
IPC: D01H15/013
Filed: 1967-03-09
Abstract: 1,189,528. Piecing arrangements. LEESONA CORP. 9 March, 1967 [14 March, 1966], No. 21762/68. Heading DID. The description is the same as that with reference to Figs. 33-50 in Specification 1,189,521, but the claims relate to apparatus for joining an end issuing from the drafting system of a ring-spinning frame with the outer end portion of a take-up package, comprising joining means (e.g. a knotter), means operable. to move the end from the drafting system to the joining means, means for threading the said outer end portion through the traveller, and means for moving the outer end portion to the joining-means.
Patent GB-347066-A (GB)
Title: Improvements in means for automatically controlling the frequency of alternating current systems
IPC: H02J3/42
Filed: 1930-07-18
Abstract: 347,066. Synchronizing dynamoelectric machines. BRITISH THOMSONHOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Seeley, H. T. ; 512, Orchard Avenue, Yeadon, Pennsylva.nia, U.S.A.) July 18, 1930, No. 21799. Convention date, July 24, 1929. [Class 38 (iv).] To bring an incoming machine 5 into synchronism the governor 8 of its prime mover is controlled by a reversible motor 11 subject to two relays 13, 14 which are selectively and intermittently energized in accordance with the relative phase rotation of two mutually phase-displaced voltages obtained from one of the circuits with respect to a voltage obtained from the other circuit. For example, transformers 19, 20 produce two mutually phasedisplaced voltages from the circuit 1 and these are each electrically compounded with a voltage obtained from the machine 5 bv a transformer 18 through the windings, respectively, of relays 13, 14. Each relay circuit passes through an auxiliary contact of the other so that one relay lifts intermittently when the machine is fast and the other when the machine is slow. Each relay controls an appropriate circuit for the governor adjusting motor which is thus intermittently energized to bring the machine into synchronism. The motor circuits include contacts 24, 25 operated from the relays and controller by time delays so that they lift after a definite time interval; thus below a given frequency difference between the circuit and machine voltages the motor 11 is energized only for a predetermined period in each cycle.
Patent GB-1164380-A (GB)
Title: Improvements relating to Hearing Aids for the Hard-of-Hearing.
IPC: H03G7/06
Filed: 1967-05-11
Abstract: 1,164,380. Hearing aids; automatic gain control. PORTESCAP, LE PORTE-ECHAPPEMENT UNIVERSEL S.A. 11 May, 1967 [9 June, 1966], No. 21828/67. Headings H4J and H4R. A hearing aid with automatic gain control comprises a signal divider located between two stages of an amplification chain, the divider having at least two impedances, at least one of which is variable and is controlled by a control signal as a function of the input signal. A signal divider Z 1 , Z 2  (Fig. 1) is inserted between stages A 1  and A 2  of five amplifier stages A 1  to A 5 . A control signal from the output of stage A 4  is fed to the divider Z 1 , Z 2  over a rectifier R and amplifier A 6 . Amplifier stage A 5  permits setting of the output sound level and the frequency response. Element Z 1  is a resistor. Circuit Z 2  includes a transistor T 1  (Fig. 2) two diodes D 1 , D 2  and two resistors r 1 , r 2 . The diodes may be replaced by transistors. If a voltage of suitable polarity and amplitude is applied to the input of transistor T 1  the voltages at the terminals of diodes D 1 , D 2  permit passage of current in each of them. The impedance between point S and earth therefore decreases and thus the amplitude of the signal at point S also decreases. The rectifier R includes a transistor T 3 , two resistors r 4 , r 5  and a capacitor C and supplies a rectified voltage proportional to the amplitude of the signal. Alternatively, the signal divider (Z 1 , Z 2 ), Fig. 3 (not shown) may be inserted between stages (A 1 , A 2 ). The input signal is fed to the signal divider by a controlled amplifying chain composed of an amplifier stage (A 7 ) followed by the control chain of Fig. 2.
Patent GB-154719-A (GB)
Title: Improvements in change speed gearing
IPC: F16H61/02
Filed: 1919-09-05
Abstract: 154,719. Major, H. A. Sept. 5, 1919. Variable-speed toothed gearing of a kind comprising two movable double dog clutches D, E is operated by a rod K, which slides and turns to move these clutches. A driving &c. shaft B carries loose gears H, G, and a driven sleeve C upon which is a loose gear F. These gears mesh respectively with gears H<1>, G', F<1> secured to a countershaft A. The clutches D, E are feathered on the sleeve C and shaft B respectively. For each position of the clutch E, two speeds are produced by moving the clutch D. A fork M engaging the clutch D is secured to the rod K, which is feathered within a sleeve N. The sleeve N is held from sliding and is formed with a screw n of steep pitch engaging the boss 0 of a fork R engaging the clutch E. A lever L fast on the rod K is moved into the four limbs of an H-slot in a gate Q to produce the four speeds.
Patent GB-735820-A (GB)
Title: Crankshaft for two-cylinder engines with cranks arranged at 360
IPC: F16C3/20
Filed: 1953-08-07
Abstract: 735,820. Crank-shafts. FIAT SOC. PER AZIONI. Aug. 7, 1953 [Nov. 17, 1952], No. 21901/53. Class 80 (2). A one-piece cast or pressed crank-shaft with aligned crank-pins 4, 5, for two-cylinder engines, has the central part la extending beyond the shaft axis so as to form a balance weight 8, a conical or cylindrical radial lightening bore 9 being cast or machined in the part 1a.
Patent GB-788435-A (GB)
Title: A suction head for a cuttter dredger
Inventor: BOS WOUTER ARIE
IPC: E02F3/92
Filed: 1956-07-16
Abstract: 788,435. Suction dredging apparatus. NAAMLOOZE VENNOOTSCHAP BAGGERMAATSCHAPPIJ BOS & KALIS. July 16, 1956, No. 22003/56. Class 68(1) On either side of the elongated intake 2 of a suction nozzle 1 and parallel to the major axis of said intake is a rotary cutter unit. Each unit comprises spade-like cutters 4 disposed on a helix about and secured to a hollow shaft 3 supported in a casing associated with the nozzle 1 for rotation by a motor disposed within said casing. Water under pressure passes from the lower part 6 of the casing through the tube 3 and bracing conduits 7 extending between the pipe 3 and cutters 4 and is discharged on to the cutters to prevent clogging. Nozzles 8 in the part 6 of the casing permit of disintegration of adjacent material by jets of water.
Patent GB-1034040-A (GB)
Title: Luggage compartments of motor vehicles
Inventor: GRIFFIN CHARLES ARTHUR
IPC: B60R5/04
Filed: 1964-05-28
Abstract: 1,034,040. Vehicle bodies and seats. AUSTIN MOTOR CO. Ltd. May 19, 1965 [May 28, 1964], No. 22038/64. Headings B7B and B7J. The back-rest 10 of a slidable rear seat in a vehicle is pivoted at 11 to the seat cushion frame 12 and is supported by links 13 pivoted to the body at 14 to provide an extra luggage space 4. The links 13 may assume an almost vertical position to provide a reclining position of the seat back or they may be rearwardly directed from their pivots 14 when the luggage space is not required and the seat back 9 lies closely adjacent the apertured wall 5 of the normal luggage space 3.
Patent GB-1003371-A (GB)
Title: Improvements in or relating to counter devices
Inventor: PEARSON GEORGE FREDRICK
IPC: G06M1/06
Filed: 1963-06-04
Abstract: 1,003,371. Counters. S. SMITH & SONS (ENGLAND) Ltd. May 22, 1964 [June 4, 1963], No. 22076/63. Heading G4D. A pair of counters, each comprising at least two wheels 4, 5 and 8, 9, are driven so as to indicate positive and negative values, respectively. As the higher denomination wheel passes through zero it masks the associated lower denomination wheel at 12 or 13 with a pair of zeroes, so indicating whether the value is + ve or - ve.
Patent GB-172056-A (GB)
Title: Manufacture of easily soluble, diazotisable azo-dyestuffs
IPC: C09B43/11
Filed: 1920-07-23
Abstract: The substantive azo dyestuffs obtained by coupling diazo compounds with coupling components of the naphthalene series which contain external amino groups, are converted into their N-methyl-w-sulphonic derivatives by treatment with formaldehyde bisulphite or a mixture of formaldehyde and sodium bisulphite. In examples is described the production of N-methyl-w-sulphonic derivatives of the monoazo dye b -naphthylamine-\sY-m-aminobenzoyl-2 : 5 : 7-acid, and the disazo dye 3 : 31-diamino-4 : 41-ditolylmethane -\sY-2 molecules of m-aminobenzoyl-2 : 5 : 7-acid.  The products may be diazotized on the fibre and developed with non-sulphonated coupling components such as b -naphthol, m-phenylenediamine, or phenylmethyl-pyrazolone, yielding on cotton, yellow, orange, bluish-red &c. dyeings fast to washing. The corresponding derivatives of the following azo dyestuffs are also mentioned together with their shades on cotton before and after diazotization and development with b -naphthol:-monoazo dyes from p-aminoacetanilide, or 1-amino-2-methoxy-4-methylbenzene, and m-aminobenzoyl-2 : 5 : 7 acid; the disazo dyes from m : m1-diaminodiphenylmethane or p : p1-diaminodiphenylether, and 2 molecules m-aminobenzoyl-2 : 5 : 7-acid; m : m1-diamino-4 : 41-ditolylmethane, or m : m1-diaminodiphenylurea, or m-aminobenzoyl-m-phenylenediamine, or p : p1-diaminodiphenylether, or azoxyaniline, and 2 molecules m-aminophenyl-5-oxy-1 : 2-naphthiminazole-7-sulphonic acid; m : m1-diamino-4 : 41-ditolylmethane and 2 molecules m- or p-aminophenylurea of 2 : 5 : 7-acid; p-aminoazobenzene, or p-aminoazotoluene (from o-toluidine), and 1 molecule m-aminobenbenzoyl-2 : 5 : 7-acid.ALSO:The N-methyl-o -sulphonic derivatives of the substantive azo-dyestuffs obtained by coupling diazo-compounds with coupling components of the naphthalene series which contain external amino groups, may be diazotized on the fibre and developed with non-sulphonated coupling components such as b -naphthol, m-phenylenediamine, or phenylmethylpyrazolone.  The N-methyl-o -sulphonic derivatives of the following dyestuffs are mentioned:-monoazo-dye from b -naphthylamine, or p-amido-acetanilide, or 1-amido-2-methoxy-4-methylbenzene, and m-amidobenzoyl-2 : 5 : 7-acid : disazo dyes from m : m1-diamido-4-41-ditolylmethane, or p : p1-diamido-diphenylether, or m : m1-diamido-diphenylmethane, and 2 molecules m-amidobenzoyl-2 : 5 : 7-acid; m : m1-diamido-4 : 41-ditolylmethane, or m : m1-diamidodiphenylurea, or m-amidobenzoyl-m-phenylenediamine, or p : p1-diamidodiphenylether, or azoxyaniline, and 2 molecules m-amidophenyl-5-oxy-1 : 2-naphthimidazole-7-sulphonic acid; m : m1-diamido-4 : 41-ditolylmethane and 2 molecules of m- or p-amidophenylurea of 2 : 5 : 7-acid : secondary disazo dye from p-aminoazobenzene, or p-amino-azotoluene (from o-toluidine), and m-amidobenzoyl-2 : 5 : 7-acid.
Patent GB-900915-A (GB)
Title: Improvements relating to scaffolding
Inventor: DUBOIS WALTER MARCEL
IPC: E04G1/14
Filed: 1958-07-10
Abstract: 900,915. Scaffolding. BRITISH BUILDING & ENGINEERING APPLIANCES Ltd. July 6, 1959 [July 10, 1958], No. 22104/58. Class 2. Scaffold uprights are formed of separate tubes 12a, 12b, Fig. 2, connected by spigot and socket 37, 38 and connected to a ledger, putlog, transom, or hand rail by offset sockets 25, 27, one on each tube, engaging spigots 30, 31 on a crosstube 29 on the end of the ledger &c. 20. In an alternative construction, Fig. 5 (not shown), the poles 12a, 12b each have a spigot engaging in a tube on the end of a transom. In a further arrangement, the crosstube on the ledger has a spigot at one end and a socket at the other and connects two parts of the standard. An horizontal scaffold stiffening angle iron is welded across the cross-tube and engages cross-tubes on other horizontal scaffold tubes. The spigots 30, 31, Fig. 2, seat on conical parts 33 to take up play in the connections in which also there may be incorporated a slot and key. A scaffolding is shown with some ledgers in the form of rectangular frames and the uprights formed by the side members of scaffold frames formed with permanent transoms. The parts are constructed so that the relative levels of ledgers and putlogs are such as to provide level footboards. In the case of hand rails the upper socket may be slidable upwards on the scaffold standard to permit the hand rail to be engaged with the lower socket. A ledger 20, Fig. 5 (not shown), is in the form of a lattice girder. The ledgers may be provided with wire mesh toe-guards.