baber/WOPTO huggingface dataset:
Patent GB-1320799-A (GB)
Title: Thieno-3,4-d-imidazole derivatives
IPC: C07D495/14
Filed: 1970-11-27
Abstract: 1320799 Thienoimidazole derivatives HOFFMAN-LA ROCHE & CO AG 27 Nov 1970 [29 Nov 1969] 48703/72 Divided out of 1320798 Heading C2C Novel compounds I wherein R represents benzyl, the rings A and B are cis-linked or, when X is H, the H atoms in 3a, 4 and 6a positions are cis-linked; X is H or OH and Y is (1-4 C alkoxy) propyl, carboxybutyl, (1-4 C alkoxy) butyl benzyloxybutyl, bromobutyl, or cyanobutyl (provided that when Y is bromobutyl or cyanobutyl X is H and when Y is carboxybutyl X is OH) or X and Y together signify (1-4 C alkoxy)-propylidene or -butylidene, carboxybutylidene or benzyloxybutylidene, are prepared by any of the following reaction schemes (R 1  represents C 1-4  alkyl X<SP>1</SP> represents Cl or Br and R 2  represents benzyl or C 1-4  alkyl) (For Reaction Schemes see next page)
Patent GB-1427435-A (GB)
Title: Electronic contactor arrangement
IPC: H02P23/00
Filed: 1973-10-22
Abstract: 1427435 Motor circuit phase changing LICENTIA PATENT - VERWALTUNGS GmbH 22 Oct 1973 [21 Oct 1972 26 April 1973] 49056/73 Heading H2J Apparatus for reversing a 3-phase motor 10 comprises a pair of parallel triacs 11a, 11b and 12a, 12b connected to the R and S supply phases respectively, the triacs 11a, 12b being connected to an output terminal 2, triacs 11b, 12a being connected to an output terminal 4, and a fifth triac 13a connected between the phase 7 and the output terminal 6, the triacs 11a, 12a and 13a being gated on for forward movement of the motor 10 and the triacs 11b, 12b, 13a being gated on for reverse movement, each triac taking part in the phase reversal procedure being in series with an inductor 14a-15b, the properties of which inductor are arranged to limit the rate of voltage rise occurring during commutation to prevent break-down in the triac currently switched off. Each triac is in parallel with a resistor and capacitor circuit 17a-19a and also a switch contact 26a-28b is connected between the supply path and respective gate terminals, which switch contacts are controlled by reed relays 29a, 29b which are in turn controlled by light responsive diodes 30a, 30b connected in parallel as shown, the triac 13a being turned on by either contact 28a or 28b. The inductors 14, 15 may be non-saturable without a core, or they may have an iron core with an air gap, or a sintered iron core with no external air gap. In a modification, Fig. 2 (not shown), two triacs are connected in parallel with phase T and with terminal 6.
Patent GB-957662-A (GB)
Title: Automatic pacer for educational training
Inventor: STRONG EARL POE
IPC: G09B13/00
Filed: 1962-12-31
Abstract: 957,662. Copyholders. E. P. STRONG. Dec. 31, 1962, No. 49135/62. Heading B6W. [Also in Division G5] An automatic pacer for pacing of a typist or a reader comprises a casing 11, Fig. 1, provided with screws 17 to attach a spacing programme sheet 18, having lines 19 of typing or reading matter thereon and the speed with which the matter is to be read or typed is indicated by a pointer 20 attached to a drive chain 21 and advanced at a predetermined speed by an electronically controlled driving mechanism. The driving mechanism includes a solenoid 28, Fig. 3, energized at intervals determined by an electronic timer 30, to operate a pawl 36 which displaces angularly a ratchet-wheel 35 fast with a ball sprocket drive wheel 32. Control knobs 24 and 25 select the num. ber of words per minute and the operation of reading or typing, respectively. The pointer 20 may be replaced by a light provided within the casing which would scan a plurality of apertures, one of each adjacent one of the lines 19. In lieu of the drive chain a plurality of lights may be provided behind the apertures and the lights selectively energized.
Patent GB-1156195-A (GB)
Title: Electric Cables
IPC: H01B1/02
Filed: 1966-11-02
Abstract: 1,156,195. Composite conductor. TEXAS INSTRUMENTS Inc. 2 Nov., 1966 [3 Jan., 1966], No. 49153/66. Heading H1A. A lightweight electrical cable comprises a central core 10 of aluminium or aluminium alloy 14 surrounded by a sleeve 12 of copper solidphase bonded to it without the use of any third material such as solder. The area of cross-section of the copper sleeve is preferably 10-25% of the total area of cross-section of the core. The whole is surrounded by an adhering coating of insulation 16.
Patent GB-1219485-A (GB)
Title: Method and apparatus for the treatment of a liquid
IPC: B01J47/10
Filed: 1968-10-16
Abstract: 1,219,485. Sewage treatment; solid/liquid contact apparatus; ion-exchange. AMERICAN STANDARD Inc. 16 Oct., 1968 [18 Oct., 1967], No. 49155/68. Headings B1D, B1F and B1J. In solid-liquid contacting apparatus, sewage is purified by filtration and/or absorption as it passes upwards through zone 40 of a bed 10 of powdered coal or sand, from inlet pipe 15 to outlet pipe 16, and a fraction of purified sewage is recycled by pump 32 to flow downwards through upper zone 38, to pipe 16, thereby exerting sufficient downward force on the bed to keep zone 40 compacted against the pressure gradient between pipes 15 and 16. A net flow of purified sewage leaves outlet tank 20 over weir 22. The downwardly flowing sewage in zone 38 may be further purified therein. The granular filter medium is progressively replaced, spent medium being withdrawn through rotary valve 44 and fresh medium added to the recycled sewage where it flows through venturi 31. Or the fresh medium may be delivered directly to cylindrical filter housing 12 (Fig. 2, not shown). Inlet and outlet pipes 15, 16 may be replaced by apertures in the housing wall.
Patent GB-1078542-A (GB)
Title: Process for the production of highly elastic molded polyurethane articles
Inventor: GEHM ROBERT
IPC: C08G18/10
Filed: 1964-12-04
Abstract: Elastic moulded polyurethane articles are prepared by reacting in solution in an inert polar solvent a linear isocyanate modified polyhydroxyl compound of M.W. 750-6000 and a melting point below 50 DEG  C. having terminal -NCO groups with a dihydrazino-di-s-triazino compound in which monohydrazino-s-triazines are linked via a bivalent diamine radical, and moulding the resulting solution while removing the solvent by heating.  The dihydrazino compound may have the formula <FORM:1078542/C3/1> where A is a diamine radical attached to the triazine rings via its nitrogen atoms and B is hydrogen chlorine or a monovalent aliphatic or aromatic group of 1-8 C or -OR, or -NR1R2, where R1 and R2 are hydrogen or monovalent aliphatic or aromatic groups of 1-8 C.
Patent GB-1463089-A (GB)
Title: Separation of hydrocarbons
IPC: C07C7/08
Filed: 1974-11-14
Abstract: 1463089 Separation of hydrocarbons SNAMPROGETTI SpA 14 Nov 1974 [21 Nov 1973] 49381/74 Heading C5E A process for separating diolefins or aromatic hydrocarbons from mixtures containing other hydrocarbons comprises subjecting the mixture to extractive distillation or to liquid-liquid extraction using, as a solvent, a compound having the formula The solvent may be used in admixture with up to 20% by weight of water. The examples describe (a) the separation of benzene and toluene, from a mixture also containing xylenes, C 9+  aromatics and saturated hydrocarbons by liquidliquid extraction followed by extractive distillation, both steps using the above solvent, (b) separating isoprene from a mixture also containing C 5  olefins, diolefins and saturated hydrocarbons by several extractive distillation steps and (c) separation of styrene from a mixture also containing alkylbenzenes and other hydrocarbons by several extractive distillation steps. It is also stated that the solvent may be used to separate butadiene from petrochemical cuts by extractive distillation and indene from a C 9  hydrocarbon cut from steam cracking gasoline, also by extractive distillation.
Patent GB-1452764-A (GB)
Title: Blocking oscillators
IPC: H03K3/30
Filed: 1973-10-24
Abstract: 1452764 Blocking oscillators DANFOSS AS 24 Oct 1973 [24 Oct 1972] 49614/73 Heading H3T The feedback winding of a blocking oscillator is connected in series with a diode across the collector supply with the diode poled severely with respect to the supply and the junction of winding and diode connected through a resistor and capacitor in parallel to the base. The reverse voltage during the flyback is thus limited to the collector voltage and the flyback energy is returned to the supply. The capacitor charges during the conducting periods of the transistor and so provides reverse base bias during the off period. Discharge of the capacitor during the latter period causes a rapid recharge to occur at the next turn-on to speed the switching. The "on" period is determined by time for the transistor to come out of saturation and the off period by the time to discharge the magnetic energy. Diode 34 conducts when the transistor conducts.
Patent GB-1298548-A (GB)
Title: Improved shaft seal arrangement
Inventor: LESIECKI GERALD
IPC: F16J15/42
Filed: 1971-10-26
Abstract: 1298548 Shaft seals ALLIS-CHALMERS CORP 26 Oct 1971 [27 Oct 1970] 49656/71 Heading F2B Sealing means for a rotary shaft 7 where it extends through a housing 6 separating regions of higher and lower pressure, e.g. process gas pressure and atmosphere respectively, comprises a sealing fluid inlet passage 17 in the housing communicating with a pumping chamber 22 formed by a stationary part and a rotary part and a fluid transfer passage communicating, at one end, with the chamber 22 and, at the other end, with a radial pumping passage 27 leading to the region of higher pressure. The rotary part, an impeller 8 secured to the shaft, forms with the stationary part, a bush 13, restricted fluid passages 16 and 26 open to atmosphere and gas pressure, respectively. The radial passage 27 is formed by intermeshing axial fingers 28 and 29 on the impeller 8 and a stator 41, respectively, and the pumping chamber comprises a shoulder 23 on the impeller and a ridge 21 on the bush forming an inlet port 24 with the impeller. The passage 17 is connected to a pump 33 and, in use, sealing liquid is supplied to the chamber 22 via passage 17, passages 18 and 19 m bush 13 and port 24 at a pressure slightly, e.g. two pounds per square inch, higher than the gas pressure. When the shaft rotates the sealing liquid pressure in the pumping chamber 22 is centrifugally increased, e.g. to ten pounds per square inch, at operating speed, above that of the gas pressure and this increased pressure in the passage 26 is balanced by the back pressure created in the radial pumping passage 27. The sealing liquid also circulates through cooling passages 34, 35 and 36.
Patent GB-1276018-A (GB)
Title: Casting of ingots
Inventor: AUSTIN GEORGE WESLEY
IPC: B22D7/00
Filed: 1969-10-10
Abstract: 1276018 Casting processes FOSECO INTERNATIONAL Ltd 23 Sept 1970 [10 Oct 1969] 49930/69 Heading B3F [Also in Division C7] Ingots are bottom poured and on the surface of the molten metal rising in the mould, a flux composition including basalt is provided as a heat-insulating cover. Additionally, the composition may comprise 40-60% wt. blast furnace slag or 5-30% wt. Na 2 CO 3  or 5-10% wt. CaF 2  with or without up to 20% wt. of vermiculite or perlite. The compositions specified are (in % wt.): Composition (I) was used for pouring 5 ton 'ingots of 18/8 stainless steel, 50/50 Fe/Ni and coinage metal (Fe/Ni/Cu) at a pouring rate of 44 cm./min., and in an amount of 2 kg./tonne. For pouring 0À8 ton ingots of 18/8 stainless steel and Ti-stabilized stainless steel at a rate of 22 cm./min. composition (I) is used in an amount of 2À5 kg./tonne. Composition (2) was employed in casting stainless steels.
Patent GB-499847-A (GB)
Abstract: 499,847. Cash registers; number-printing apparatus. TELEFONAKTIEBOLAGET L. M. ERICSSON. April 23, 1937, No. 11663. Void. Convention date, April 24, 1936. [Classes 100 (ii) and 100 (iv)] A cash register, ticket-printing, or like machine is provided with typewheels for printing identical matter on two parts of a bill, coupon, &c. The apparatus shown in the Figure is employed for printing identical matter on the first and second sections of a three-section betting coupon, and for simultaneously cutting off the first section, this section being retained by the client and the other two sections being sent to the office. The apparatus comprises a set of numbering-wheels 6 having duplicate types 8, plates 4, 5 for printing identical items such as printing-plates are prevented from rising by a pair of " detents " 32 connected to a slide-rod 34 which is provided with an operating-spring 36 and co-operates with the cam 14. The cross-head 52 is connected to blocks for holding down the coupon during the cutting operation. Grooves in the blocks receive the knife. The numbering-wheels are automatically advanced by means of a pawl 20. An inking-roller 43, normally resting on a pad 47, is traversed under the numbering-wheels and printing-plates by means of linkage 42, 41, 39 operated by springs 45, 46 under control of a cam 37. The number of operations of the apparatus is shown by a counter 48 operated by the link 41 or a cam. Settable type-members may be provided for printing the amount paid and the date. The apparatus, excepting the knife, is enclosed in a sealed or locked casing 56. The knife can be readily removed for sharpening.
Patent GB-1036018-A (GB)
Title: Improvements in and relating to yarn packages
IPC: B65H55/04
Filed: 1963-12-18
Abstract: 1,036,018. Yarn packages. ONDERZOEKINGSINSTITUUT RESEARCH N.V. Dec. 18, 1963 [Dec. 19, 1962], No. 50036/63. Heading B8M. Barre effects in fabrics which are due to winding drawn yarn of a polyamide or a polyester &c. into a package such that the yarn in the middle of the package has a lower modulus of elasticity than the yarn in the inner or outer portions of the package is avoided by ensuring that all the points in a yarn layer formed by any one traverse stroke lie substantially in a surface of constant modulus of elasticity. This is achieved by winding the package initially with a diminishing traverse stroke to form a first portion and then with an increasing traverse stroke to form a contiguous second portion which covers the first portion-the transition between the two portions being at or near the point of minimum modulus of elasticity. The reversal points of the yarn layers lie in a substantially conical surface at each end of the package. Preferably the traverse speed is programmed to ensure that each yarn layer lies in a surface of constant modulus of elasticity. The packages may have various shapes, Figs. 1, 3, 7-15 (not shown).
Patent GB-1517707-A (GB)
Title: Stereophonic cabinet
IPC: A47B81/06
Filed: 1975-12-08
Abstract: 1517707 Stereophonic cabinets D REYES 8 Dec 1975 50260/75 Heading A4H [Also in Division H3] A stereophonic cabinet as shown supports speakers 34, a tuner 20, an environmental control 21, a tape recorder 22, an amplifier 24, a record player 26, &c., the compartments being closed by lockable wire grid doors 28, antenna 33 being adjustably mounted on a sloping roof 32 or on the doors 28, and a burglar alarm system (36) being mounted beneath the roof.
Patent GB-1107930-A (GB)
Title: Photographic camera
Inventor: ETTISCHER HELMUT
IPC: G03B19/04
Filed: 1966-11-10
Abstract: 1,107,930. Photographic cameras. EASTMAN KODAK CO. Nov. 10, 1966 [Nov. 13, 1965], No. 50431/66. Heading G2A. A roll film photographic camera comprises a film supply chamber 15 for a cassette 16 or spool of film at one side of a film support surface 17, a rotatable film take up spool 18 having means for securing thereto a free end of the film 37, main winding means (not shown) for rotating the spool 18, a hinged cover door 13, auxiliary winding means for rotating the spool 18 to wind film thereon, and coupling means operatively coordinating the operation of the auxiliary winding means with the position of the cover 13. The free end of the film strip 37 is attached to the take up spool 18, this operation giving rise to a length of slack film adjacent the surface 17 and perhaps leaving the cassette mouth 38 incorrectly orientated with respect to the surface. As the cover door is closed, a pin 35 thereof engages a lip 32 on a member 27, thereby causing rotation of the member 27 and of a gear 22 coaxial with the spool 18. The spool 18 is thus rotated clockwise (as seen) a ratchet 19 and pawl 24 mechanism being arranged to allow clockwise rotation. Thus, as the door is closed, the slack is taken up, the cassette is correctly orientated, and the film is drawn taut across the surface 17, where it is held by a pressure plate on the inside of the cover door when the latter is completely shut. Means (not shown) may be provided to disengage the ratchet 19 and pawl 24 if the film is to be rewound into the cassette after exposure.
Patent GB-506923-A (GB)
Abstract: 506,923. Converting. BRITISH THOMSON-HOUSTON CO., Ltd., and READ, J. C. Dec. 6, 1937, No. 33719. [Class 38 (ii)] In an arrangement for compounding a rectifier or inverter 1 by grid control, phase shift of all the grid voltages is effected by a common rectified control current obtained from an auxiliary rectifier 8, fed from the mains 6 through a saturable reactor 9 which is saturated by the main load current so as to produce progressive increase of control current and consequent progressive advance of phase of grid voltage with increase of load. The reactor 9 may be additionally saturated by a winding 23 carrying the rectified control current. The control current may be limited by a resistance 24 connected in series with the rectifier 8. When the arrangement is to operate in parallel with another rectifier or a compound wound machine an equalizer connection 11 may be provided. Specification 433,967 is referred to.
Patent GB-1057500-A (GB)
Title: Device for practising golf
IPC: A63B69/00
Filed: 1963-12-23
Abstract: 1,057,500. Force measuring. A. H. COLEMAN. Nov.11, 1964 [Dec. 23, 1963], No.50744/63. Heading G1W. [Also in Division A6] A golf practising device comprises a ball 1 adapted, when struck by a golf club, to pivot about a horizontal axis against the action of spring 4, into contact with one of three plates 8, 9, 10 which are pivotally mounted at their ends adjacent the ball. The free ends of the plates are each connected by means of a respective cable 14 to a pair of drums 18, 19 mounted for rotation about a spindle 23 under the control of a spring 21. The rotation of the drums is utilized to operate a pointer 26 moving over a scale to indicate the force of the stroke delivered to the ball in terms of the distance it would travel if free. The connection between the drums and pointer includes a free wheel device whereby the pointer remains in its displaced position when the drums are returned to their starting position by spring 21, thereby providing a means of summing the lengths of successive "shots". The provision of three indicators, each corresponding with a respective one of the plates,8, 9, 10 enables the user of the device to check the direction of his "shots".
Patent GB-1456166-A (GB)
Title: Rotary
IPC: G11B15/61
Filed: 1974-11-27
Abstract: 1456166 Rotating magnetic head apparatus INTERNATIONAL BUSINESS MACHINES CORP 27 Nov 1974 [26 Dec 1973 (2)] 51356/74 Heading G5R Rotary magnetic head apparatus supports a helical wrap of magnetic tape 16 around a pair of stationary mandrels 10, 12 between which a rotating magnetic head is mounted to traverse said helical tape wrap, and in the regions where the head during its rotation crosses the tape edges, the contour of the mandrels is such as to lift the tape thereon away from the path of the head. Mandrels 10, 12 are generally cylindrical but have relatively raised contoured surface portions 18, 20 so that the mandrels in crosssection resemble an eyeball, the entry and exit points of the helical wrap of tape 16 being at the peaks of portions 18, 20. The wrapped surfaces of mandrels 10, 12 are formed by foils 24, 22 therearound and adhesively bonded thereto. In the region of the tape wrap each mandrel 10, 12 has a pressurized air plenum formed by a triangular array of channels 26, air from which passes through corresponding arrays of holes in the foils 22, 24 to form a hydrostatic air bearing for the tape, extra holes being formed in the foils in the regions (38) (40), Fig. 3 (not shown), where the tape 16 enters onto and exits from the mandrels, and in regions (42), (44) adjacent the points where the path of head rotor 14 crosses the tape edges.
Patent GB-1213417-A (GB)
Title: Rotary piston internal combustion engine
IPC: F02B53/00
Filed: 1968-10-30
Abstract: 1,213,417. Rotary-piston internal combustion engines. DAIMLER-BENZ A.G. Oct.30, 1968 [Oct.31, 1967], No. 51463/68. Heading F1F. A multi-piston, rotary-piston I.C. engine comprising a casing having side walls, a peripheral wall for each piston of epitrochoidal inner profile and one or more side partition walls dividing the casing into two or more working spaces and inlet and exhaust ports in the peripheral walls, includes in the peripheral wall or partition wall on the inlet and compression side of each working space an aperture, a duct inter-connecting apertures between two at least of adjacent spaces and means in said duct for occluding it during idling and low load condition of the engine. As shown in a two piston engine, housing three-sided pistons 1, 2, Fig.1, mounted on eccentrics 8, 9 of a shaft (not shown) and staggered with respect to each other by an angle 10 (180 degrees) for planetary rotation, apertures 21 22, Fig. 2 are formed in the peripheral walls 3, 4 and inter-connected by a duct 25 fitted with occluding means 26, 27 or alternatively apertures 28, 29 are formed in the partition wall 7 and connected by a duct 31 fitted with a valve 30. With the flank 32 of the piston 1 in a position in which its trailing end closes the inlet port 18 and the charge is compressed fresh charge is blown through the duct 25 into the chamber associated with the flank 35 of the piston 2. This continues until the trailing end of the flank 32 overrides the aperture 21, as shown in Fig.1, whence the chamber located over the flank 35 of the piston 1 commences to blow into the chamber associated with the flank 33 of the piston 1 and so on, such that the compressing chamber of one piston blows into the aspirating chamber of the next piston. In another embodiment, Fig.7 (not shown), the duct is formed internally in the peripheral and partition walls and runs parallel to the axis of the shaft. Spring-loaded valves close the apertures during high partial load and at full load running and are lifted by levers in dependence on load during idling and partial low load running. In order to create turbulence overflowing of the fresh charge the apertures provided in the inner peripheral surface can be connected by bores disposed obliquely to the radial direction so that the charge onters in opposition to direction of piston rotation. In a three-piston engine the eccentrics are staggered with respect to each other at 120 degrees and with a four-piston engine a double arrangement of a two-piston engine can be employed.
Patent GB-1119658-A (GB)
Title: Push button faucet
IPC: F16K31/524
Filed: 1966-11-17
Abstract: 1,119,658. Valves. R. P. MILLER, and B. G. MILLER. 17 Nov., 1966 [2 Dec., 1965], No. 51555/66. Heading F2V. Hot and cold inlet valves 44, 66 are opened independently by cams 38, 42 on push-buttons 26, 28, and are closed by a push-button 32 (not shown) which acts through links 126 on a vertically movable plate 130 adapted to raise buttons 26, 28 to their inoperative positions. A further push-button 30 has a pair of relatively adjustable cams (Fig. 2, not shown) which simultaneously operate valves 44, 66 to produce a flow of water at a predetermined temperature. Specification 1,119,659 is referred to.