baber/WOPTO huggingface dataset:
Patent GB-287960-A (GB)
Title: Improvements in or relating to control apparatus for aircraft
IPC: B64C13/00
Filed: 1926-12-24
Abstract: 287,960. Brunton, J. L., and Brunton Bros., Ltd. Dec. 24, 1926. Steering and balancing.-The valve control lever of power actuated control surfaces of an aircraft is connected also to auxiliary control surfaces to enable the pilot to sense the flying speed. A lever 1 with a hand wheel 5 is universally jointed at 2 to a spindle 3 in a casing 4, the spindle 3 having a pulley 29 connected by a Bowden cable 30 to the control valve of a compressed air or oil driven servo-motor for moving the rudder. A lever 32 on the spindle 3 is connected to an auxiliary surface mounted on the rudder. The lever 1 passes through balls 6, 7 bearing in slides 8, 9 which move respectively in plates 10, 20 moving in guides 11, 21 in a fixed frame. The plate 10 is connected by a cable 13 to the servo-motor for actuating the ailerons, and the plate 20 is connected by a cable 22 to the servo-motor for the elevator. The plates 10, 20 are connected also respectively to levers 16, 25 on shafts having levers 18, 27 connected to corresponding auxiliary control surfaces. Alternatively, the auxiliary surfaces may be moved by pinions engaging racks on the slides. Fig. 5 shows a servo-motor as described in Specification 140,188, the cable 13 passing through a casing 14 anchored at 36 and through a looped casing 38 anchored at 37 at one end and connected at its other end to a lever 44. The cable actuates a valve 40 to admit pressure fluid to a cylinder 42 to move the ailerons and simultaneously the lever 44 moves one end of the casing 38 in a direction to close the valve again.
Patent GB-324436-A (GB)
Title: Apparatus for effecting the intermittent drive of mechanical stokers
IPC: F23K3/00
Filed: 1928-11-09
Abstract: 324,436. Gairing, M. Nov. 9, 1928. Charging.-An intermittent drive is imparted to mechanical stokers for furnaces from a continuously driven shaft i by means of a chain h carrying one or more transversely projecting pins d adapted to engage pins f on a lever e coaxial with a chain wheel c round which the chain passes. 'The lever e, which is carried round through substantially 180‹ each time it is engaged by the pin d operates the stoker through a connecting-rod g. As the pin d passes out of engagement, a companion lever e', which turns with the lever e, is engaged by a spring-pressed retaining-member k.
Patent GB-1160977-A (GB)
Title: Benzofuranyl Carbamate Derivatives
Inventor: BROOKER PETER JOHN
IPC: C07D307/86
Filed: 1966-07-21
Abstract: 1,160,977. Pesticides containing benzofuranyl carbamates. FISONS PEST CONTROL Ltd. 4 July, 1967 [21 July, 1966], No. 32849/ 66. Heading A5E. [Also in Division C2] Plants, areas (e.g. soil), animals and materials susceptible to attack by pests (e.g. wood, paper, fabrics and textiles), may 'be treated with a pesticidal composition which comprises, as the active ingredient, a compound of the formula: wherein R 1 , R 2 , R 3  and R 4  are the same or different and are hydrogen or alkyl, R 5 , R 6  and R 7 , which may be the same or different are hydrogen, alkyl or halogen, R 8  is alkyl, propargyl or allyl, but is not methyl when R<SP>5</SP>, R<SP>6</SP> and R<SP>7</SP> are each hydrogen, and R 9  is alkyl. The compositions may also comprise at least one of the materials selected from wetting agents, solid diluents, solvents, and edible substances attractive to pests; fertilizers and other pesticides such as herbicides, insecticides, fungicides, molluscicides and bactericides e.g. DDT, BHC or alpha-naphthyl-N- methylcarbamate may also be present.
Patent GB-192549-A (GB)
Title: An improved roofing and walling tile
IPC: E04D1/04
Filed: 1921-12-08
Abstract: 192,549. Shadbolt, R. Dec. 8, 1921. Roofing tiles.-A roofing tile a, which when laid in position has the appearance of two or more plain or curved tiles, is made of uniform thickness and is provided with tongued and grooved side and head joints or locks. The head groove d is adapted to be engaged by the rib e of a tile in the course above while side grooves h and ribs f are engaged by complementary parts on an adjacent tile of the same course. The horizontal joint c may be as shown or rounded or angled. A rounded or angled rib may be provided on the upper surface of the tile above the side joints. The usual ribs k are shown.
Patent GB-1140323-A (GB)
Title: Endless tracks
IPC: B62D55/21
Filed: 1967-07-18
Abstract: 1,140,323. Endless tracks. STAHL-UND RÍHRENWERK REISHOLZ G.m.b.H. 18 July, 1967 [22 July, 1966(2)], No. 33017/67. Heading B7H. An endless track comprises forged or cast links 1 disposed parallel to one another and transversely of the track, each link having a pair of plastics or rubber mounted pins 2 passing through it and adjacent pins of adjacent links being connected by elements 5 flush with the outer edges of the links, the links being recessed at 4 to accommodate the ends of the pins and also at 8 to allow a further connector 6, there being rotatably mounted on the pins hardened rollers 11 for engagement with teeth 11a of a driving sprocket and extending from each link a member 9 guided between running wheels 10. The pins 2 are prevented from rotating in elements 5 by providing a plate 20 in a recess 18, the ends of the plate contacting flats 17a formed in the pins. The plate 20 is fixed to element 5 by a bolt 24 formed with a frusto-conical head 25 and a narrow neck portion 27. The connectors 6 are formed of two parts clamped around the pins and having bearing surfaces which contact flats on the pins to prevent rotation.
Patent GB-303988-A (GB)
Title: Telescopic folding screen
IPC: A47G5/00
Filed: 1927-12-07
Abstract: 303,988. Wilkinson, W. J. Dec. 7, 1927. Screens, furniture.-A screen consists of a telescopic upright 1, provided with a suitable base and pair of hinged arms 6, which may be jointed and from which curtains are suspended, the arms being held horizontally or folded vertically upwards in line with the upright 1. In the construction shown the arms 6 are provided with elliptical or circular ends 5 pivoted on a common pin 4 extending between plates 3 at the top of the upright 1. The arms are held horizontally by pins 9 extending between the plates 3 and engaging notches 8 in the ends 5. The arms 1 are held vertically by a common spring pressed plunger 10, operated by a lever 12, which engages notches 11 formed in the ends 5.
Patent GB-1070205-A (GB)
Title: Derivatives of spiro (5-norbornene 2,2'-thietane)-1'1'-dioxide
IPC: C07D409/04
Filed: 1964-08-13
Abstract: The invention comprises compounds selected from the free bases, free base addition salts, N-oxides, N-oxide addition salts and alkyl quaternary ammonium salt forms of compounds of the formulae Ia and Ib:  <FORM:1070205/C2/1> <FORM:1070205/C2/2> where RRN- is a heterocyclic moiety which may be substituted by 1 to 3 alkyl groups of 1 to 8 carbon atoms and X is hydrogen or chlorine. Compounds of Formula Ia may be obtained by reacting an enamine of the formula <FORM:1070205/C2/3> with a methane sulphonyl chloride of the formula X-CH2-SO2-Cl, preferably in an inert solvent in the presence of an acid-binding agent.  Compounds of Formula Ib may be obtained by hydrogenating compounds of Formula Ia, e.g. in the presence of a platinum, palladium or Raney nickel hydrogenation catalyst. Compounds of Formulae Ia and Ib form N-oxides with peroxides, e.g. hydrogen peroxide. In the examples, the heterocyclic systems -NRR specified are N-methyl piperazine, morpholine, pyrrolidine, hexahydroazepine, 2,2-dimethyl pyrrolidine, 2,5-dimethyl pyrrolidine and piperidine. The free base or N-oxide free bases of compounds of Formulae Ia and Ib may form salts with penicillins, which salts may be used in the isolation and purification of penicillins, particularly benzyl penicillin.  The compounds of Formula Ia and Ib are stated to have anti-inflammatory activity and to be useful in treating inflammatory conditions topically, locally and systematically in mammals.
Patent GB-1505336-A (GB)
Title: Purification of acetic acid
IPC: C07C51/42
Filed: 1976-08-10
Abstract: 1505336 Acetic acid MONSANTO CO 10 Aug 1976 [11 Aug 1975] 33207/76 Addition to 1343855 Heading C2C In a process for the purification of acetic acid from iodine containing components and water, a stream of acetic acid is introduced intermediate to a first distillation zone in which the major proportion of methyl iodide and water is removed overhead, a major proportion of hydrogen iodide is removed at the bottom and a stream from the mid-section is introduced to an upper section of a second distillation zone while a stream of methanol is introduced to the lower section of this zone. Pure acetic acid is removed at or near the bottom of this zone and the remainder of the water, methyl iodide and any methyl acetate formed is removed overhead. The acetic acid may be that prepared by reaction of an alcohol, ester, or ether and halide derivative with carbon monoxide with rhodium or iridium catalysts and an iodine or iodide compound promoter. The initial stream may be introduced to the lower third of the first zone and the withdrawn stream from the middle section may be introduced to the upper third of the second zone, while methanol is introduced to the lower fourth of the second zone. The overhead from the first zone may be separated to light and heavy phase and a portion of the light being refluxed to upper part of first distillation zone. The acetic acid may be removed as liquid or vapour from above the liquid at the bottom of the second zone.
Patent GB-191579-A (GB)
Title: Improvements in power-actuated percussion tool
IPC: B25D11/12
Filed: 1921-12-10
Abstract: 191,579. Dehn, F. B., (Titan Power Hammer Corporation). Dec. 10, 1921. Percussive drills.-The floating hammer member 3 of a percussive tool has an extension 6 engaging a recess 5 in a member 2 reciprocated in any suitable manner, as by means of a disc crank 12 driven by flexible shafting (not shown). An air cushion is thus maintained between the members 3, 5. Air for cooling is drawn in through ports 10 and passes through the casing by means of grooves 7, 8 and 17, escaping by openings 30. The tool holder 14, together with the cylinder 1, can move within the outer casing 21 against a spring 25.
Patent GB-1040396-A (GB)
Title: Improvements in or relating to centrifuge apparatus
Inventor: SIEPE WERNER
IPC: B04B3/06
Filed: 1963-08-22
Abstract: 1,40,396. Centrifugal strainer separator. HEIN, LEHMANN & CO. A.G. Aug. 22, 1963, No. 33269/63. Heading B1D. A centrifuge has two conically flared coaxially mounted sieve drums 1, 12, each drum widening upwardly, to drums being connected together by spring elements so as to be resiliently vibrated relative to one another. Spring groups 5a, 5b exited by mechanical, electromechanical, electrical, pneumatic or hydraulic means impart axial vibrations to shaft 2 on which the drums are mounted. Shaft 2 is driven by a pair of symmetrically mounted motors 21, 21a. The drums are coupled by helical springs 10a, 10b or by a rubber-metal or resilient metal element (Figs. 4, 4a not shown). A closed resilient ring 29 or a series of symmetically distributed individual elements may be rigidly connected to metal rings 30alpha, 30, themselves connected to flange 8, 11 of drums 1 and 12 respectively, or a metal ring 31 may be clamped between flanges 8 and 11. The angle of inclination of drum 12 is normally less than the angle of inclination of drum 1 and may be zero. Liquid is discharged by flanged pipe sockets 14a, 15alpha.
Patent GB-872993-A (GB)
Title: Improvements in or relating to a process for the removal of at least one gaseous acid component from a mixture of gaseous components
IPC: C10K1/12
Filed: 1957-10-24
Abstract: 872,993. Purifying gases; regenerating purifying solutions. PINTSCH BAMAG A.G. Oct. 24, 1957 [Oct. 24, 1956], No. 33270/57. Class 55 (2). In a process for removing acidic gases such as H 2 S and/or CO 2  from gases containing them the gases are scrubbed with an alkaline solution which is subsequently regenerated and anions of compounds which decrease the efficiency of the alkaline solution as an absorbent formed in the alkaline solution during scrubbing or regeneration are removed by passing all or part of the solution continuously through one or more ionexchangers whereby the anions of the compound which decrease the efficiency of the absorbent are retained in the ion-exchanger or exchangers. The alkaline solution may contain an organic base, an alkali carbonate or potassium arsenite or be an alkazide lye. The anions removed may be sulphate, thiosulphate, thiocyanate, arsenate, or thioarsenate and the anions substituted in their place may be hydroxyl, carbonate or bicarbonate. The solution to be passed through the ion-exchanger or exchangers may first be diluted, e.g. to one part in ten, and the treated solution leaving the ion-exchanger or exchangers may be used in a second scrubbing stage to remove any H 2 S and/or CO 2  in the gas leaving the first scrubbing stage before being passed to the first scrubbing stage. The material in the ion-exchanger or exchangers may be reactivated by a portion of the alkaline scrubbing solution which has not been saturated with H 2 S and/or CO 2  or which has been regenerated and passed through an ion-exchanger or by means of an alkaline solution containing a carbonate, bi-carbonate or hydroxide. The ion-exchange material may be a particulate material containing about 8% divinylbenzene, the particles having a diameter of about 0.033 mm. In examples the alkaline scrubbing liquids contain potassium carbonate and methylaminopropionic and dimethylaminoacetic acids, potassium carbonate, potassium carbonate and .aminoacetic acid and potassium arsenite.
Patent GB-1303569-A (GB)
IPC: H02P9/30
Filed: 1971-07-15
Abstract: 1303569 Alternators GENERAL MOTORS CORP 15 July 1971 [27 July 1970] 33274/71 Heading H2A [Also in Division G3] The output voltage of an alternator 10, which has a permanent magnet field, main and reverse field windings 14, 16 and a rectifier 24 charging a battery 35, is maintained at a substantially constant value by a voltage regulator comprising a voltage divider 66, 68 which controls, via Zener diode 72 and transistor 78, the application of gating signals to controlled rectifiers 44, 46, 48 forming part of a rectifier bridge 36 supplying the winding 14, the arrangement being such that the windings 14, 16 are alternately energized as the output voltage varies above or below the desired constant value by virtue of the fact that a controlled rectifier 56 controlling the winding 16 has its gatecathode circuit connected across the anodecathode circuit of the rectifier 44, so that conduction or non-conduction of the latter, corresponding to an output voltage below or above the desired value, respectively causes the rectifier 56 to become non-conductive or conductive and control the winding 16 accordingly. Energization of the winding 16 counteracts the permanent magnet field at high operating speeds of the alternator. The transistor 78, which is conductive or non-conductive according to the state of the Zener diode 72, may be replaced by a Darlington pair. Diode 74 compensates for temperature changes in the break-down voltage of Zener diode 72. Diode 84, or if necessary a plurality of such diodes, provides a forward voltage drop to cancel out the voltage drop across the collector-emitter circuit of transistor 78, when biased conductive, thus preventing the saturation voltage of this transistor from firing the rectifiers 44, 46, 48 when they should be non-conductive. Resistor 62 provides a conductive path for gating the rectifiers 44, 46, 48 at start-up if the permanent magnet field is insufficient or is not provided. The circuit paths for this condition and for the gating and conduction of the controlled rectifier 56 are discussed.
Patent GB-1441073-A (GB)
Title: Drive means for a tool carriage of a machine tool such as a multi-spindle automatic lathe
IPC: B23B21/00
Filed: 1974-07-29
Abstract: 1441073 Feed motions GILDEMEISTER AG 29 July 1974 [2 Aug 1973] 33333/74 Heading B3T [Also in Division F2] A drive means for imparting variable stroke to the reciprocating transverse tool carriage 20 of a machine tool, such as a multi-spindle automatic lathe, comprises a rotary cam disc 1, driven via a gear 2 and having a face cam groove 9 engaged by a roller 8 on one arm of a pivoted doublearmed lever follower 10 the other arm of which is slotted at 101 for sliding engagement with a slide member 12, which slide member 12 is steplessly adjustable along an elongated slot 141 of an arm fixed on an output shaft 17. The shaft 17 carries a toothed segment 18 which meshes a rack 19 adjustably secured in an elongated slot of the tool carriage 20 whereby rotary drive from the cam disc 1 effects reciprocation of the carriage 20, the reciprocating stroke thereof being readily varied by adjustment of the pin 13 along the slot 141 in the arm 14. Facial teeth 5 in the clampedup assembly of the cam disc 1 and gear 2 readily permit angular adjustment therebetween. As shown the lever follower 10 is a bell-crank lever whilst in Figs. 3 and 4 (not shown) the lever is formed as a straight double-armed lever (21) and the stroke adjusting pin (23) is adjustably positioned along slots (241) of a forked arm (24) In Fig. 6 (not shown) four such cam discs 1 are provided for driving a total of six reciprocating transverse tool carriages 20.
Patent GB-206038-A (GB)
Title: Improved means for securing shaft heads to brooms, hammers, pickaxes and other toolsof a like nature
IPC: B25G3/02
Filed: 1922-12-07
Abstract: 206,038. Davies, R. H. E. Dec. 7, 1922. Barb, toothed, and like holding-devices for socket fixings.-A fixing device for the handles of hammers, picks, brooms &c. comprises a double-limbed strip of sheet metal having teeth on the limbs for engaging the handle within the socket. As shown, the strip comprises a base b and two limbs c, d, the ends g, h of which are bent at right angles. Teeth o are formed on the edges of the strip and bent inwards, so as to engage the wood of the handle r, Fig. 2, when it is forced into the socket of the tool &c. head q. The base b is flattened out to an elliptical form, the ends e, f, extending laterally beyond the limbs.
Patent GB-1048423-A (GB)
Title: Apparatus for detecting differential movement
Inventor: JEFFRIES THOMAS OLIVER
IPC: G21C17/12
Filed: 1963-08-23
Abstract: 1,048,423. Controlling reactors. ENGLISH ELECTRIC CO. Ltd. Aug. 20, 1964 [Aug. 23, 1963], No. 33409/63. Heading G6C [Also in Division G1] To check that a number of reactivity control rods 10 in the core of a reactor, which are each operated by separate drive means 13, move in synchronism each is coupled to one of a like number of coaxially arranged discs 17 provided with a number of holes 18. A source of radiation 20 at the focus of lens 21 provides a parallel beam passing through aperture 23 covering one pitch of the series of holes 18. If all the discs have their holes in alignment the maximum amount of radiation will pass through them, through aperture 24 similar to 23, and be directed by lens 25 to detector 26. Synchronous rotation of the discs 17 will not affect the amount of radiation reaching the detector, but if one or more discs move to cause misalignment the detector output will fall. If it drops below a certain level, a switch 28 causes alarm 29 to operate. A chopper disc 22 can be used to modulate the radiation beam to produce an A.C. signal in the detector circuit.
Patent GB-972608-A (GB)
Title: Mounting strip for the assembling of wall tiles
IPC: E04F19/06
Filed: 1962-08-31
Abstract: 972,608. Tiling. B. W. BOURWALL. Aug. 31, 1962 [Sept. 14, 1961], No. 33483/62. Heading E1V. Wood fibre or plastic tiles 1 are secured to a wall by plastics mounting strips which are formed in two interlocking parts 2a, 2b, each of T-section, the part 2a being nailed to the wall. The web of the part 2b is arrow-shaped in section and mates with a corresponding groove in the part 2a so that the two parts enclose the tiles.
Patent GB-506917-A (GB)
Title: Improvements in the formation of linings for tunnels and the like
IPC: E21D11/10
Filed: 1937-12-06
Abstract: 506,917. Lining tunnels &c. REES, G. M. T. Dec. 6, 1937, No. 33679. [Class 85] Linings of tunnels, shafts, culverts, subways, and'the like are formed by supporting spaced rings of pre-formed concrete blocks by shuttering, filling the spaces between the rings with mixed concrete, ballast or like material, compressing said material to expand it laterally against the wall of the excavation, and finally grouting. Shuttering b is erected within the skin a of a tunnelling shield and a ring of concrete blocks d is erected in the,intervening space and spaced from the similar ring formed in the previous cycle of operations. Concrete, ballast; &c. f, is then filled in between the rings through openings c afterwards closed. By means of rams g, the shield is then advanced and the concrete, ballast, &c. is compressed, the latter then being grouted with a quicksetting cement with or without waterproofing material. An annulus i of rubber &c. may be placed between the rams and lining rings, and the shield may have additional rams bearing on inwardly-projecting, longitudinal, flanges b<1> of the shuttering. In wet ground, a sheet or sheets of plain or corrugated tin &c. may be placed between the shield and the rings of blocks d; with corrugated sheets, such corrugations as are not flattened by the pressure -may form drainage channels. The shuttering may be eccentric to the shield so that the upper part, of the lining has a greater thickness. Internally.threaded sockets k, Fig. 6, may be cast in the lining to support cable-carrying brackets &c. , screws l temporarily close the sockets.
Patent GB-905073-A (GB)
Title: Improvements in processes for preparing cyclohexanone oxime
Filed: 1960-09-30
Abstract: Cyclohexanone oxime is prepared by treating a cyclohexyl ketone of the formula <FORM:0905073/IV (b)/1> where X is an alkyl, aromatic, hydroaromatic or alkylaromatic radical with a nitrosating agent in sulphuric acid solution in the absence of free SO3 at temperatures between - 15 DEG  and +35 DEG C.  The nitrosation preferably takes place in 90-93% sulphuric acid.  Examples describe the treatment of cyclohexyl phenyl ketone and cyclohexyl naphthyl ketone with nitrosyl sulphuric acid and dinitrogen trioxide when benzoic and naphthoic acids respectively are obtained as by products.  Treatment of dicyclohexyl ketone is said to give two molecules of cyclohexanone oxime.
Patent GB-488553-A (GB)
Title: Improvements in the manufacture and production of nitrogenous condensation products
IPC: C08G73/02
Filed: 1936-12-08
Abstract: Nitrogenous textile assistants are obtained by reacting alkyleneimines, in which the imino nitrogen bridge is attached to two vicinal carbon atoms and having the hydrogen atom attached to the nitrogen unsubstituted, or polymerization products of such alkyleneimines containing at least one hydrogen atom attached to nitrogen, with esters derived from alcohols containing at least six carbon atoms in the molecule or phenols and inorganic acids containing oxygen or alkali salts thereof.  In examples, monomeric or polymeric ethyleneimine is reacted, in the presence of caustic soda with the sodium salts of the acid sulphuric esters of palm kernel fatty alcohols, octadecenyl alcohol, and octadecylalcohol. Polymeric ethyleneimine is also reacted with hydroabietinylboric acid ester. The use of propyleneimine, butyleneimine, dodecyleneimine and C-phenylethyleneimine and also of octadecenylphosphoric ester and esters of alcohols obtained by the oxidation of paraffin wax is mentioned.  The products are stated to have foaming properties and may be used for animalizing cellulose fibres.  Specifications 460,888, 461,354, and 466,344 are referred to.