baber/WOPTO huggingface dataset:
Patent GB-486469-A (GB)
Title: Improvements in toy vehicles
IPC: A63H17/36
Filed: 1937-03-03
Abstract: 486,469. Toys. RICHTER, J. March 3, 1937, No. 6348. [Class 132 (iii)] Toy vehicles have the inner ends of the front stub axles forming steering arms sliding in guide openings formed in upstanding portions of a swivel plate, the steering arms being so curved that the distance between their points of contact with the edges of the guide openings is substantially constant for all angular positions in order to maintain the front wheels parallel. In the construction shown in Figs. 1 and 2 the arrow-shaped stub axles 10 and steering arms 9 are pivoted at 11 on the toy vehicle base 1 and engage in guide openings 6 in lugs 5 on the edge 4 of the swivel plate 2 engaging in slots 7 in the base 1. In modified constructions the arrow-shaped stub axles and steering arms rotate in cut-out guides in the turned up edge of the toy vehicle base or in holes in lugs bent from the base. In the construction shown in Fig. 7 the steering arms 9 are doubly curved, and in Fig. 8 widen towards their ends and both engage in the opening 6 in the lug 5. The base 1 may be constructed to take any of the above forms of steering arms.
Patent GB-291334-A (GB)
Title: Improvements in and relating to capsules for bottles and like containers
IPC: B65D41/62
Filed: 1928-03-01
Abstract: 291,334. Latimer, P. F. March 1, 1928. Capsules.-A capsule for bottles &c. is provided with a vertical removable tongue b stamped or formed in it. The tongue may be bent back to facilitate its being gripped.
Patent GB-1293683-A (GB)
Title: Improvements in or relating to radius dressing tools
Inventor: BROYDEN ALBERT RICHARD
IPC: B24B53/12
Filed: 1970-02-11
Abstract: 1293683 Dressing grinding wheels DEFENCE SECRETARY OF STATE FOR 19 April 1971 [11 Feb 1970] 6496/70 Heading B3D A radius dressing tool comprises a dressing element 1 on a mounting 3 retained on a substantially annular surface 12 of a support member 13 by magnetic means (10, Fig. 2, not shown). The element, such as a diamond or abrading surface, is mounted on the end of a rod 2 which is adjustably clamped by screws 4 in the mounting 3, the position of the element being determined by abutment with a stop 9 on a gauge member 5 positioned by a scale or slip gaugesplaced between the end 8 of the mounting 3 and a plate 7 mounted on a gauge member 5. The mounting has a curved surface (11) incorporating one end of the magnet (10) so that the surface adheres to but is slidable on the curved surface 12 of the support member 13. The mounting 3 is guided for angular movement  around the surface by a guide 14, the movement being restricted by stops 15. Wipers 16 maintain the surface 12 clean.
Patent GB-671258-A (GB)
Title: Elevator for raising workpieces
Inventor: SKOW ROSS ERIC
IPC: B65H1/18
Filed: 1950-03-15
Abstract: 671,258. Stacking machines. WALBERT MACHINE CO. March 15. 1950. No. 6511/50. Class 78 (iii). A platform 84 for supporting the work pieces 85 is mounted on angle members 30 connected to carriers 16, 17 movable on wheels 14 and 15 in upright channel members 7 and 8. Pulleys 41 connected to the carriers are connected by cables with pulleys 42 and winding drums 36, 37 mounted on a horizontal shaft 35 which is rotated by a motor 55 carried by a cross bar 4 and operating through reduction gearing which includes worm gearing 47, 48. The movement of the platform is controlled by control switches 59, 60 and an adjustable switch 62 all mounted on the upright 2 and by a safety switch 58 connected to the cross bar 4. The limit switches 59, 60 have rollers 64, 65 which are contacted by leaf springs 66, 67 on the angle member 30 to open the motor circuit. The adjustable switch 62 is mounted above the stop 59 at the height at which the platform is required to stop. A cam 69 is rotatably mounted on the upright and has an arm 71. When the arm is down the cam contacts a roller 68 of the switch closing the motor circuit. When the work pieces have been raised in contact with the arm it rotates and causes the roller 68 to operate the switch 62 to open the motor circuit. The arm 71 may be rotated to the out-of-use position, when another dwell on the cam surface engages the roller to close the motor circuit. If the topmost work piece contacts the safety switch 58 the motor circuit is opened. The motor circuit incorporating the switches cornprises a main switch operated by the switches through a solenoid. To start the operation a push button is first pressed and the motor reversing switch 63 is actuated to start the motor to raise the carriage from contact with switch 60. When the arm 71 is rotated the switch 62 opens the motor circuit. The reversing switch 63 is then manually operated to lower the platform until it is again stopped by switch 60 when the platform is reloaded and the process can be repeated. For lowering the work pieces a differently shaped cam 69 is used.
Patent GB-913043-A (GB)
Title: Improved copolymers of vinylidene chloride and moistureproof sheet wrapping materialcoated therewith
IPC: C08F214/08
Filed: 1959-02-25
Abstract: Copolymers are prepared from 85 to 93 wt. per cent vinylidene chloride, a monomeric monoester of itaconic acid which dissolves in vinylidene chloride rather than in water and, optionally, another monomeric ethenoid compound by an emulsion polymerization process. The preferred ester is mono-n-butyl itaconate and the optional comonomer may be acrylonitrile.  Modifiers or chain stoppers such as dodecyl mercaptan may be present during the polymerization.  In the process used in the examples the dispersing agent is sodium lauryl sulphate and the catalyst system is ammonium persulphate and sodium metabisulphite, the persulphate and dispersant being first dissolved in water at 33 DEG -35 DEG C., the monomers being then introduced, and finally, once reflux condensation was noticeable an aqueous solution of the bisulphite added.  Where dodecyl mercaptan is used as modifier it is mixed with the monomers.  The copolymer is precipitated with aluminium sulphate, washed with ethanol and dried. The dry polymer is dissolved in a mixture of methyl ethyl ketone and toluene and used to coat regenerated cellulose sheets (see Group VIII).  According to the Provisional Specification the monoester may be derived from unsaturated acids other than itaconic, e.g. maleic. Specification 649,719 is referred to.
Patent GB-1037852-A (GB)
Title: Improvements relating to apparatus for protecting welding equipment
Inventor: MOORE GEOFFREY ROBERT
IPC: B23K11/25
Filed: 1964-02-17
Abstract: 1,037,852. Protection circuits for welding equipment; converting. SOUTH LONDON ELECTRICAL EQUIPMENT CO. Ltd. May 3, 1965 [Feb. 17, 1964], No. 6568/64. Headings H2F, H2H and H2K. A protection circuit for spot welding equipment (not shown) comprises a relay whose operating coil RLA is energized to cause termination of a welding operation should a preset welding time be exceeded or should the welding current depart from a desired A.C. waveform, e.g. full-wave. The former protective feature is provided by the right hand part of the circuit of Fig. 1 in which, prior to the commencement of a welding operation, a capacitor C2 is maintained charged through a transistor TR1 thus causing transistors TR2, TR3 to be cut off. Initiation of welding cuts off transistor TR1 to allow capacitor C2 to discharge through resistors R5, VR1, the transistors TR2, TR3 remaining cut off until the voltage across C2 has fallen to a predetermined value in a time slightly greater than the welding time set by the equipment control gear. Thus if this welding time is exceeded, transistors TR2, TR3 conduct to cause disconnection of the main circuit breaker and/or the ignitron circuit, feedback through members R10, SD1 locking the protection circuit in the relay energized condition until reset by operation of the switch PB. The left-hand part of Fig. 1 comprises two circuits respectively supplying D.C. voltages X and Y to a transistor TR4, the voltage X being approximately constant and the voltage Y being dependent on the A.C. waveform of the welding current. When this is full wave, voltage Y is greater than X and transistor TR4 is cut off. Should the waveform depart from normal, e.g. positive half-cycles only, Fig. 2 (not shown), the voltage Y will fall below X to render transistor TR4 conducting, thus producing conduction of transistor TR3, energization of the relay RLA and the disconnection of the equipment previously described. The arrangement of neon tube N1, capacitor C5 and Zener diodes ZD2, ZD3 produces a square waveform of constant amplitude and pulse width, provided that an integral number of welding cycles occurs, and this waveform is fed through a differentiating capacitor C6 to the bridge BR2. The resulting D.C. voltage Y applied to the transistor TR4 is of sawtooth form which degenerates to a short triangularshaped pulse when the welding current waveform departs from normal as mentioned above. The normally-open contacts A1 of relay RLA close to discharge and reset the capacitor C5 when a fault occurs.
Patent GB-815861-A (GB)
Title: Improvements in or relating to educational aids
IPC: G09B3/04
Filed: 1957-02-27
Abstract: 815,861. Educational appliances. STUDEBAKER, J. W., and STUDEBAKER, J. G. Feb. 27, 1957, No. 6596/57. Class 146(2). An educational aid comprises a pair of apertured sheets 55, 56 which can be superposed with the apertures 63 in register, in which the upper sheet 55 carries in association with each aperture 63 a printed question P and a supplementary opening 59 through which can be viewed a corresponding answer A carried on the lower sheet 56, whereby a worksheet may be inserted between sheets 55, 56 the answers written on the worksheet through the apertures 63 in the upper sheet and the worksheet then placed beneath the lower sheet so that the written answers viewed through the apertures 63 in the lower sheet may be compared with the correct answers printed on that sheet. In the assembly shown in Fig. 5 the top sheet 55 has apertures 63 each associated with a question P and a supplemetary opening 59, sheet 56 has apertures 63 each associated with an answer A to a question P on sheet 55, a question Q, and a supplementary opening 60, sheet 57 has apertures 63 each associated with an answer Az to a question Q on sheet 56, and a supplementary opening 61 (not shown), and sheet 58 is unapertured to provide a smooth writing surface or work sheets placed between the apertured sheets 55, 56, 57. The sheets, with apertures 63 aligned, may be joined by rings, sewing, stapling &c. to form a book. In use a work sheet is inserted between sheets 55, 56, and the answers to questions P written on the work sheet through apertures 63, and the work sheet is then inserted between sheets 56, 57, when the written answers, visible through apertures 63 may be compared with the printed answers A visible through openings 59. Similarly a work sheet may be inserted between sheets 56, 57 and the questions on sheet 56 answered &c. The apertures and openings are associated-with further questions and answers on the back of the sheets In the construction shown in Fig. 15 the answers are viewed through extensions 81, 83, 81 of apertures 80, 82, 80.
Patent GB-401555-A (GB)
Title: Improvements in the manufacture of foodstuffs
IPC: B02B1/00
Filed: 1933-03-04
Abstract: Cereals are steeped to take up moisture and to soften the cellular structure, the superfluous water drained off and the mass heated, preferably in jacketed kettles with the addition of a dry steam blast; the material is then pulped by passing through squeeze rolls or by treatment in a disintegrator or other device to break down the cellular structure and the pulped material converted into pellets or cakes by a hydraulic press, or by an extrusion machine; the cakes or pellets are passed between squeeze rolls to convert them into flakes which are then toasted. Flavouring or colouring material or both may be added to the cereals either before or during the treatment.  The cereals may be treated husked or unhusked, barley and oats preferably being husked but husking being optional in the case of wheat, maize and rye.  Two or more different grains may be mixed together the grains preferably being mixed after cooking.
Patent GB-471435-A (GB)
Title: Improvements in the manufacture and production of dyestuffs
IPC: C09B47/22
Filed: 1936-03-05
Abstract: Phthalocyanines are produced by reacting chlorine- or brominecontaining phthalocyanines with amines containing at least one reactive hydrogen atom attached to nitrogen.  Suitable initial materials are the metal-containing and metal-free dyestuffs obtained by the action of halogenating agents on phthalocyanines such as those mentioned in Specification 470,079. These are caused to react either directly, or in the presence of solvent or diluent, with amines such as methylamine, dimethylamine, butylamine, ethanolamines, butylethanolamines, ethylene diamine, polyethylene polyamines, dodecylamines, methyldodecylamine, octodecylamine, octodecenylamine, dioctodecylamine, cyclohexylamine, methylcyclohexylamine, aniline, toluidine, xylidine, aminomethoxybenzene, aminomethylmethylbenzene, aminohydroxybenzene, aminonaphthalene, aminodiphenylene oxide and sulphide, aminobenzene carboxylic acids, aminohydroxy benzene carboxylic acids, phenylene diamines, aminoacetic acid, methylaminoacetic acid, aminopyridine, aminoquinoline, aminocollidine, piperidine, lupetidine, and amino compounds of anthracene, anthraquinone, carbazole, azanthraquinones, benzanthrones, dibenzanthrones, iso-dibenzanthrones, azobenzanthrones, chrysenes, pyrenes, anthrapyrimidines, anthradipyrimidines, anthrapyridones, anthraquinonebenzacridones, pyrroloanthrones, pyridinoanthraquinones and pyridino-benzanthrones. Suitable diluents are aromatic hydrocarbons, aromatic nitrohydrocarbons and tertiary amines.  Metals promoting halogen exchange such as zinc, copper, silver powder, sodium and sodium amalgam may be added and p  the reaction may be carried out under pressure.  The examples describe the reaction of (1) tetra-chlor-copper-phthalocyanine with 1 - amino - 4 - methylbenzene, 2 - amino - naphthalene, paratoluidine, and dodecylamine; (2) penta-chlor-copper phthalocyanine with benzylamine, para-phenetidine, 1-amino-anthraquinone and 1 : 4-diamino-anthraquinone; (3) metal-free tetra-chlor-phthalocyanine with benzylamine, and 1-amino-naphthalene; (4) tetra - deca - chlor - copper - phthalocyanine with cyclo-hexylamine and dodecylamine; (5) various chlorinated copper phthalocyanines of uncertain formula with aniline, 1-aminonaphthalene, benzidine, para - phenylene - diamine, piperidine, and sodium tauride.  Samples have been furnished under Sect. 2 (5) of (A) a blue powder obtained by reacting alphaamino-naphthalene with a brominated copper phthalocyanine, and (B) a greenish blue powder obtained by reacting a mixture of alpha-aminonaphthalene and para-toluidine with a copper phthalocyanine containing chlorine and bromine.
Patent GB-399399-A (GB)
Title: Improvements in and relating to matrices for typographical machines
IPC: B41B11/00
Filed: 1933-03-06
Abstract: 399,399. Type-bar-making machines. INTERTYPE CORPORATION, 360, Furman Street, Brooklyn, New York, U.S.A.- (Assignees of Freund, H. R. ; 360, Furman Street, Brooklyn, New York, U.S.A.) March 6, 1933, No. 6740. Convention date, March 15, 1932. [Class 100 (iii).] Matrices. - In order to diminish the difficulty of pro - ducing the lowest pair of teeth in a matrix formed with wide distributing - teeth on the convergent walls of the usual V-shaped notch, a hole D is drilled in the body of the matrix immediately below the notch F prior to cutting and broaching the distributing-teeth in the walls of the notch, whereby is reduced to a minimum the amount of metal to be cut away at the apex during the broaching operation. The usual yoke-shaped recess B is formed at the upper end of the matrix and the cavity D is then drilled through nearly to the opposite matrix wall. A series of steps G are formed as by milling across the top of the notch F and a broach or other cutting tool removes the bodies of metal M, Fig. 5, and, if desired, the small amount E on the lowermost teeth. The usual distributer bar-point clearance opening is in the form of a recess L which extends to a depth slightly less than the width of the matrix and communicates through the recess D with the V.notch F. The teeth are of uniform dimensions and extend from one side of the matrix towards the opposite side at least to a plane passing vertically through the centre of gravity of the matrix.
Patent GB-515676-A (GB)
Title: Method of refining selenium
IPC: C01B19/02
Filed: 1938-03-04
Abstract: 515,676. Refining selenium. STANDARD TELEPHONES & CABLES, Ltd. March 4, 1938, No. 6846. Void. Convention date, March 4, 1937. [Class 90] Selenium for use in electrical circuits, e.g. as a rectifier, photo-electric cell, or a resistance variable with light, is refined chemically in such a manner that none of the black allotropic form is obtained in the final product, e.g. by keeping the temperature of precipitation below 20‹C.
Patent GB-1441738-A (GB)
Title: Synchronous ring counters
IPC: H03K23/54
Filed: 1975-02-18
Abstract: 1441738 Ring counters SIEMENS AG 18 Feb 1975 [27 Feb 1974] 6886/75 Heading G4A A synchronous ring counter comprises an even number of clocked bi-stable units ZP1- ZP6, each unit having two inputs R, S, an output Q and a clock terminal TE and being operable to implement to logic equation the units being ring connected with the output of one connected to the S input of the next, and a binary divider circuit STE having its one output Ao coupled to the R inputs of alternate ones of the units ZP1-ZP6 and an inverted output coupled to the R inputs of the other units. Each of the units ZP1-ZP6 may comprise an R-S master-slave bi-stable combined as shown in Fig. 1 with a majority decision circuit BMG. The divider STE may be a similar unit ZPO with a NAND-gate NA1 and an AND-gate UN1 connected to the count input ZSE. A modification (Fig. 5, not shown) in which the NAND-gate is replaced by a majority decision circuit allows the counter to be reset.
Patent GB-1456782-A (GB)
Title: Warm-air hairdressing appliances
IPC: A45D20/10
Filed: 1974-02-15
Abstract: 1456782 Hair-dressing appliances BRAUN AG 15 Feb 1974 [17 Feb 1973] 6891/74 Heading A5R A hair-dressing appliance comprises a fan drum 5, Fig. 3, actuated (by a motor 3, and a heater 4 in a platics housing having parts 1, 2, 12, Fig. 4, and a discharge vent k in part 12, which part is formed as a grille and contains grooves 23, 24 for receiving brushes or combs (not shown) over said vent, the heater being mounted on a plate 27 held by part 2 of the housing to lie in a plane which extends parallel to part 1 and intersects, in the peripheral region of the fan drum remote from the heater, a second plane containing the axis of said drum and passing approximately through the centre of said vent. The fan drum, the heater, and the vent are elongated in the direction of the fan drum, axis, the parts 1, 2 of 'the housing converging to the vent. The fan drum contains a plurality of thinwalled blades (74) Fig 10, (not shown), each having a unifom lateral curvature and a rib (62) extending lengthwise thereof. A barrier wall (not shown) may extend from housing part 2 to the plate 27, at rightangles thereto, at that edge of said plate nearer the fan drum. The electrical energy for driving the motor is taken from the heater circuit, the wire 28 of which is tapped. The supply leads 34, 35 for the motor may have sockets which can be fitted onto the tapped heater wire, the plate 27 being formed as a printed circuit board.
Patent GB-538296-A (GB)
Title: Improvements in or relating to the manufacture of sheet lead
IPC: C22C11/00
Filed: 1940-04-18
Abstract: 538,296. Lead alloys. GOODLASS WALL & LEAD INDUSTRIES. Ltd., JONES, B., and LLOYD, A. April 18, 1940, No. 7019. [Class 82 (i)] Lead sheet is made of lead containing at least 0.003 per cent. of nickel and 0.001 per cent. of copper, the total content of nickel and copper being not more than 0.01 per cent.
Patent GB-1023015-A (GB)
Title: Benzothiazyldisulfide
IPC: C07D277/78
Filed: 1963-02-21
Abstract: The invention comprises nodular granules of benzothiazyldisulphide ground from a cohesive mass of fused platy crystals of benzothiazyldisulphide containing not more than 2% by weight of water and having an average particle diameter of 15-100 microns.  Fusion may be effected by compacting under pressure or rapidly melting and cooling the platy crystals.  The desired product preferably contains no more than 5% by weight of the original platy crystals.
Patent GB-1395094-A (GB)
Title: Process and apparatus for catalytic afterburning of internal combustion engine exhaust gases
IPC: F01N13/02
Filed: 1973-02-14
Abstract: 1395094 Purifying I C engine exhaust gases DAIMLER-BENZ AG 14 Feb 1973 [22 Feb 1972] 7195/73 Heading F1B Exhaust gases are catalytically reduced, air is added and then the exhaust gases are catalytically oxidized. Prior to oxidation ammonia in the exhaust gases is decomposed. Reduction, ammonia decomposition and oxidation may be effected in respective reactors 1, 2, 3 containing monolithic or particulate catalyst beds. Air is added through a pipe 6 upstream of the reactor 3. The reduction and ammonia decomposition may be effected in respective catalyst beds in a common reactor (8), Fig. 2 (not shown), or in a common catalyst bed in a reactor (9), Fig. 3 (not shown).
Patent GB-453160-A (GB)
Title: Improvements in switching devices for standard and like electric lamps
IPC: F21V23/04
Filed: 1935-03-07
Abstract: 453,160. Switches held set and freed mechanically. FERRIS, F., 33, St. John's Park Mansions, Pemberton Gardens, Upper Holloway, London. March 7, 1935, No. 7196. [Class 38 (v)] [See also Group XI] The standard 1 of a standard lamp is connected to a disc 3 which has a rotatable pin- and-slot connection 5, 6 with the base 2. On rotation of the standard, a pin 7 engages a pair of contact springs 4 to close the circuit to the lamp. According to the Provisional Specification, an arm or fork carried by the standard may operate a tumbler switch carried by the base.
Patent GB-1022532-A (GB)
Title: Direct current interrupting arrangement
Inventor: DARKE JAMES ANTHONY
IPC: H02H3/087
Filed: 1962-02-23
Abstract: 1,022,532. Protective arrangements. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Feb. 14, 1963 [Feb. 23, 1962], No. 7203/62. Heading H2K. An arrangement for interrupting the supply of current from a D.C. source Tl, T2 to a load LD comprises a semi-conductor controlled rectifier CR1 and a tripping circuit including a pair of transistors TR1, TR2 to provide a control signal to the control electrode of the rectifier to render it non-conductive in the event of overload. The rectifier CR1 is initially switched on by a current pulse through a manually operated switch SW, a capacitor C2 and a resistor R6. When the overload occurs, the voltage across a series resistor R1 applied to the base of transistor TR1 becomes sufficient to cause the transistor TR1 to start conducting so that current flows through a resistor R4 and starts transistor TR2 conducting. This causes both transistors to reach full conduction rapidly and to apply a tripping signal to the control electrode of the rectifier CR1 to render it non-conducting. Fig. 2 (not shown) illustrates a modified arrangement using a third amplifying transistor, the three transistors having their power supply from a separate source.