baber/WOPTO huggingface dataset:
Patent GB-686039-A (GB)
Title: Improvements in and relating to organosilicon oils
IPC: C08G77/48
Filed: 1950-08-03
Abstract: Organosilicon oils having the unit structure [-(CH2)ySi(CH3)2[OSi(CH3)2] n(CH2)ySCH2CO2 (CH2)mO2C.CH2S-], in which n is a number from 0 to 10, m is at least 2, preferably from 2 to 6, and y is 2 or 3, may be made by reacting: (1) a diester derived from thioglycollic acid and a dihydric alcohol having the formula (HSCH2 CO2)2(CH2)m, wherein m is an integer from 2 to 6, and (2) a dialkenyl silane or siloxane of the formula <FORM:0686039/IV (a)/1> , where R1 is a vinyl or allyl radical and n is a number from 0 to 10.  In examples: (1) ethylene bisthioglycollate was mixed with an equimolar quantity of diallyl-methylsilane and a little benzoyl peroxide to initiate the reaction to give a viscous oil having the unit structure [-(CH2)3Si(CH3)2(CH2)3 SCH2CO2(CH2)2O2C. CH2.S-]; (2) diallyl-tetramethyldisiloxane was reacted in a similar manner to give a high molecular weight oil having the unit structure [-(CH2)3Si(CH3)2O Si(CH3)2 (CH2)3S CH2CO2 (CH2)2O2C.CH2.S-].  Other oils may be mad by reacting higher divinyl or diallyl polymethylsiloxanes with ethylene bisthioglycollate or other diesters of thioglycollic acid and a higher dihydric alcohol, e.g. trimethylene glycol.
Patent GB-1183754-A (GB)
Title: Exposure Control System.
Inventor: MEY HANSJUERG
IPC: G03B27/00
Filed: 1967-04-27
Abstract: 1,183,754. Colour printing exposure control. CIBA Ltd. April 27, 1967 [May 4, 1966], No.19546/67. Heading G1A. [Also in Division G2] The periods during which filters influence printing in a photographic multi-colour printing process are controlled by electrical pulses produced in response to electrical signals each indicative of the necessary time of exposure of the photo-sensitive material to a particular colour and based on exposure parameters determined by an analysis of colour from the positive or negative to be printed and related to the type of exposure. The controlled filters may be inserted individually, additively, or subtractively. In the arrangement Fig. 1 magnets 13 for moving filters 8 are controlled by a unit 2 which may also control the intensity of light source 3 and the paper feed, the unit 2 being fed with basic exposure information, information regarding the transparency and colour of the film from a photo-cell monitor or monitors 10, and an initiating pulse. The exposure information from unit 32 is in the form of pre-set voltages derived by selector switches from potentiometer chains and it is modified in respect of the individual colours in a unit 31 containing a summation amplifier, by its combination with the transparency and colour signals, the effects of which may be adjusted by potentiometers. The modified information signals control the duration of pulses produced in exponential timing units for control of the respective filter moving solenoids, the operation of the first timing unit being initiated by a start pulse at terminal E and the sequential operation of succeeding timers being brought about by pulses returned to terminals 5b, 5c, by respective differentiating circuits in response to the termination of the preceding pulse. In a subtractive exposure system, parasitic absorption compensating signals are fed back to modify the operative signals 2a-c from unit 31. The operating solenoids may have one of each of their terminals commoned to a 12V source and may when energized, act against a spring to withdraw a filter from the beam path. A number of basic circuit elements are described in detail.
Patent GB-1217682-A (GB)
Title: Benzopyran derivatives and perfumery compositions comprising them
Inventor: FORDHAM WILLIAM DOUGLAS
IPC: C07D311/74
Filed: 1967-04-27
Abstract: 1,217,682. Benzopyran derivatives. BUSH BOAKE ALLEN Ltd. 11 April, 1968 [27 April, 1967], No. 19556/67. Heading C2C. [Also in Division A5] The invention comprises compounds of the general Formula I wherein R 1  = alkyl C 1-4 , R 2 =H or alkyl C 1-4 , except that when R 1  = CH 3 , R 2  does not equal H. They are prepared subjecting a trans-#- ionone of the general Formula II wherein R 1  or R 2  are as defined above, to electromagnetic radiation of wavelength less than 400 mÁ until at least 20% by weight of the compound of Formula II has been converted to the compound of Formula I, or the compound of Formula I in which R 1  and R 2  are as defined above and in addition R 1 =CH 3  when R 2 =H, may be prepared by heating the corresponding compound of Formula II to 120-200‹ C., distilling the product therefrom at a reduced pressure using a reflux ratio that is sufficiently high for the isolated product to contain at least 20% by weight of the desired compound of Formula I. The novel and known compounds of Formula I are used as the ingredients in perfumery compositions.
Patent GB-988823-A (GB)
Title: Devices for thinning plants growing in rows
IPC: A01B41/02
Filed: 1963-05-16
Abstract: 988,823. Soil-working implements. F. SCHURMANN, May 16, 1963 [May 21, 1962], No. 19558/63. Heading A1B.  A plant-thinning machine comprises a rotary driving shaft 2 extending in the direction of travel, a tool which includes at least one knife 10, 18 oscillating transversely of the plant-row about a fixed point 11 on the machine eccentric to the driving shaft axis, and a cam-wheel 9 mounted on the driving shaft 2 and provided with a cam slot 13 in direct engagement with the tool to produce the oscillating motion thereof. The driving shaft 2 is driven from the ground-wheels 1 and is mounted in a tube 3 supported on a ground-wheel 4 and pressed downwardly by springs 5. The tube has a rear flange 8 on which the tool is pivoted by a pin 11. The tool comprises an arm 16, carrying a roller 12 running in the cam-groove 13, and two knives 10, 18 adjustable vertically and horizontally on a longitudinal member forming part of the arm.
Patent GB-581672-A (GB)
Title: Improvements in or relating to hydraulic power transmission systems
IPC: F15B21/044
Filed: 1944-10-11
Abstract: 581,672. Hydraulic machines. KEELAVITE CO., Ltd., and JOHNSON, E. H. Oct. 11, 1944, No. 19567. [Class 69 (ii)] In hydraulic power transmission systems in which a rotary or other pump C- supplies liquid to motors E, J, one or more air-collecting chambers, which maybe constituted by the pump or motor casings or a separate chamber G, are provided with air bleed valves L, M, P, the arrangement being such that at starting, during idling, or whenever the pressure in the system is low, the valves permit escape of air from the chambers and entry of pressure liquid thereinto. Bleed valve L is mounted on the pump C which may be of the kind described in Specification 551,991, [Group XXVI], having a casing containing liquid maintained at a pressure between inlet and delivery. The valve comprises a differential piston L<1> having its small end constantly subjected to pressure in the discharge pipe D through pipe L and valve L<3>, and its other end to the chamber pressure through port L<2>. At low discharge pressures, the valve moves to the right and permits escape of air from the chamber to the suction reservoir A through port C<1>, and entry of liquid from pipe D through port C<2>. At a predetermined pressure, the valve moves to the left and cuts off ports C', C2. Valves M and P are actuated by the discharge pressure against springs. Should the pump C be reversed, D becomes the suction pipe and K the discharge, but both pipes are connected to the valve L through valves L<3>, L<4> in such a way that the small end of valve L<1> is always subjected to the discharge pressure and functions similarly for both directions of discharge. Similarly, valve P is connected to pipes F and K through valves Q<4>, Q<5> so arranged that the higher pressure always acts on the valve in opposition to the spring while air is ejected into the low pressure pipe.
Patent GB-140503-A (GB)
Title: Improvements in internal combustion engines having rotating cylinders
IPC: F02B57/08
Filed: 1918-11-27
Abstract: 140,503. Soc. des Moteurs Gn¶me et Rh¶ne. March 13, 1918, [Convention date]. Compression engines.-Radial cylinders which rotate are disposed in a pair of parallel planes, and their pistons are connected to a common crank-pin n on a shaft which is supported at one end only by two separated bearings b, b<1>. The valve-rods for the two sets of cylinders are located in the positions shown.
Patent GB-1044961-A (GB)
Title: A method of treating and eliminating copper from sulphuric acid-containing and nitric acid-containing effluents derived from pickling processes
IPC: C02F1/66
Filed: 1963-05-17
Abstract: Copper is removed from a sulphuric acid-containing or nitric acid-containing effluent from a pickling plant by precipitating the copper as a hydroxide and/or oxide by addition of sufficient caustic alkali, separating the precipitate from the effluent and the precipitate is then dissolved in sulphuric or nitric acid and the resultant solution electrolyzed to recover metallic copper. Typically water used in rinsing copper sheets from a rolling mill pickled in sulphuric acid is brought to pH 7.8 to 8.1 with caustic soda to precipitate the copper content and the resultant clear water is either run into a drain or used for cooling.  The precipitate is dissolved in sulphuric acid mixed with part of the pickling bath, and electrolyzed between a copper cathode and a lead anode with an applied potential of 2.3v at a current density of 12 to 14 amps/dm2 to cathodically deposit copper.  The freed sulphuric acid is returned to the pickling bath which is kept at an acid content above 159 e.g. 25% and a copper content below 30 g/l.  For rinsing water from brass wire pickled in a nitric acid-chromic acid the pH is raised with caustic soda to 7.9-8.5 to produce a copper-zinc sludge, and the clear water is treated to remove the chromate content either by ion exchange or by deposition as barium chromate before discharge to a drain. The copper-zinc sludge is thickened, dissolved in nitric acid and electrolyzed between a graphite anode and a copper cathode to deposit a mixture of metallic copper and zinc on the cathode.
Patent GB-354940-A (GB)
Title: Pressure reducing valves
IPC: G05D16/10
Filed: 1930-06-30
Abstract: 354,940. Pressure-regulating valves. HILL, A., 9217, Lorain Avenue, Cleveland, Ohio, U.S.A. June 30, 1930, No. 19790. [Class 135.] A pressure-reducing valve comprises a piston valve 12, Figs. 2 and 7, urged in the closing direction by fluid pressure from the outlet 9 acting through a passage 15 on the inner end of the piston, said pressure being balanced against a lever weight load 24, 26, Fig. 2, or a spring load 37, Fig. 7. The piston 12 is circumferentially grooved at 14, to connect the inlet 8 with the outlet 9, the inlet port 8 being elongated at 10 and of larger cross section than the outlet port, and the circumferential groove 14 being longer at the upper or outlet side so that the outlet is closed ahead of the inlet, and in all positions the fluid pressure upon the piston is circumferentially equalized. The weight load 24, Fig. 2, is adjustable by a screw 25 and is indicated on the beam 26. In the spring-loaded arrangement, Fig. 7, the spring is adjusted by means of a yoke 32 embracing the valve casing and anchored to a spring abutment 34 at one end, and having an adjusting screw 33 at the other end, said screw being operated by a hand-wheel 41 connected therewith by a friction coupling 42. The pressures are in this case indicated by a rotary finger 39 on a dial 38.
Patent GB-689954-A (GB)
Title: Improvements in and relating to surface finish of insulated conductors and electric cables
IPC: H01B13/22
Filed: 1951-08-22
Abstract: 689,954. Conductors. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 22, 1951 [Aug. 30, 1950], No. 19790/51. Drawings to Specification. Class 36. A rubber or rubber-like conductor covering is coated with a film of silicone oil by dipping the insulated conductor into an aqueous emulsion containing from 0.08 to 0.35 per cent silicone oil. The conductor is then drained and the coating allowed to dry. An air draught may be provided to assist the drying.
Patent GB-205225-A (GB)
Title: An improved self-operating vacuum breaker
IPC: F01B25/00
Filed: 1922-07-19
Abstract: 205,225. Cole, A. W. J. July 19, 1922. Condenser systems.-In a vacuum-breaker of the type in which a valve is controlled by the pressure of the supply of condensing water the valve c is connected by a lever l<1> to a piston g exposed to the water-supply through a pipe j. A spring k controls the motion of the piston g. The valve c is enclosed in a casing e from which escaping steam is conducted to some place where it will be innocuous.
Patent GB-888608-A (GB)
Title: Improvements in and relating to flexible containers and methods of producing such containers
IPC: D03D25/00
Filed: 1958-06-20
Abstract: 888,608. Filters. REBUT, P. June 20, 1958 [June 22, 1957; Nov. 6, 1957], No. 19914/58. Class 46. [Also in Groups XVII and XXVIII] A method of producing a chain of woven containers which may be used as filters comprises the steps of forming a long flat assembly of superposed sheets of longitudinal warp threads including two outer walls AB1, E1D2 and at least one pair of intermediate walls of approximately half their width GF2, C 1  B2, E2F1, C2D1 and thereafter completing the fabric of said walls by weaving a weft thread across the different warp sheets over a path, starting at A, as indicated by the arrows in Fig. 1 thereby joining the longitudinal edges along each successive line of fold. The tube thus formed is provided with transverse interwoven closure bands over a length 2a forming a seal. The chain thus formed may be cut transversely through the closure bands a to form closed containers 10 or transversely between the bands to form blood or similar filters for which nylon threads may be used. The fins 11-14 formed with the container 10 may be welded at 15 to form a fluid-tight container or a passageway may be formed for the insertion of a pipe associated with cock or valve. A pipe may be inserted between two fins or in other positions and a plug or drain hole may be provided. Tubular chambers such as 21, 22, Fig. 7, may be formed to receive uprights constituting a rigid carcase, or openings perpendicular to the longitudinal axis may be provided. Reinforcement or weakenings at fold, cut or sealing lines may be provided. The containers for example for liquids or gases which may also be used as floats, may be rendered fluid-tight by coating, impregnation, waterproofing or by using coated threads adapted subsequently to melt or coagulate. It is also possible to associate the container inside or outside with a similar container of plastic sheet material or with plastic containers produced by injection moulding. Two half-filters may be provided on either side of a closure section without cutting the latter, and may be arranged in a fluid-tight tube. Liquid admitted to the inside of one of the filters flows outwards through its wall and then flows inwards through the wall of the second filter where it is collected.
Patent GB-314551-A (GB)
Title: Process for manufacturing high emission cathodes for thermionic valves
IPC: H01J9/04
Filed: 1929-06-29
Abstract: 314,551. Loewe, B. June 30, 1928, [Convention date]. Vacuum tubes.-In the formation of thermionic cathodes, metals of a specific gravity of 3.8 and less, preferably alkaline earth metals, or compounds of such metals, are precipitated on the cathode by decomposition of gaseous organic compounds of the metals. A carbonaceous deposit, mainly carbide, may be formed and may be converted to oxide by reaction with an oxide previously, simultaneously or subsequently deposited on the cathode or with water vapour, the gases formed being pumped off. Barium alkyl, Ba(CnH2n+1)2, preferably the methyl compound with n=1 or the ethyl compound with n=2, may be vaporized in the valve after evacuation and freeing the parts from gas, the cathode being brought to red heat. Barium carbide is formed and is converted to barium oxide by aqueous vapour, or by nickel oxide on the tungsten cathode. Hydrocarbons formed and any excess of barium alkyl are removed by evacuation. The Specification as open to inspection under Sect. 91 (3) (a) comprise also the conversion of deposited pure metal into compounds such as the hydroxide and the conversion of deposited hydroxides into oxides and refers to Specification 306,960. This subject-matter does not appear in the Specification as accepted.
Patent GB-1453839-A (GB)
Title: Radial piston hydraulic pump
IPC: F04B1/04
Filed: 1973-04-27
Abstract: 1453839 Reciprocating pumps LUCAS INDUSTRIES Ltd 25 Jan 1974 [27 April 1973] 20020/73 Heading F1A In a radial piston pump comprising a rotary cylinder block 20 with pistons 26 engaging an eccentric cam ring 27, the block 20 is drivingly connected to the ring by gear teeth 29 to effect rotation thereof. A centrifugal impeller 14 in the pump inlet 11 supplies liquid to chamber 19 with which two pairs of cylinder ports (22), Fig. 3 (not shown), associated with each cylinder communicate during the suction stroke, one pair of the ports communicating with an arcuate outlet port 25 during the discharge stroke. Port 25 is formed in a flange 23 of a bearing 16. Leakage past bearing 17 passes through shaft passage 34 to inlet 11. A chamber containing shaft seals 30, 31 has a drain 32.
Patent GB-200381-A (GB)
Title: Improvements relating to lubricating apparatus
IPC: F16N21/04
Filed: 1922-07-21
Abstract: 200,381. Benton &. Stone, Ltd., and Atkinson, H. G. July 21, 1922. Couplings, disconnectible; cup-leather overlap joints, with valves and cocks.-A grease gun comprises a cylindrical body a on which are secured a pair of resilient strips d provided at their free ends with radial claws adapted to engage a groove h on a lubricating nipple c when depressed by a sliding ring g. The body a has an enlarged end over which a cap f is screwed, slots being provided to receive the strips d. A valve b is provided in the body a. The strips are preferably bent from a single piece. The claws may be provided with slots for attachment to the strips, or may be integral with the strips.
Patent GB-1174024-A (GB)
Title: Telephone Call Indicators
Inventor: GUNSON GEORGE RONALD
IPC: H04M19/04
Filed: 1968-04-26
Abstract: 1,174,024. Manual exchanges. ERICSSON TELEPHONES Ltd. 4 Oct., 1968 [26 April, 1968], No. 20062/68. Heading H4K. A telephone call indicator comprises, in series across the line wires, an indicator coil, a capacitor and a pair of diodes connected in anti-parallel. The diodes, which are of the avalanche type, present a high forward and backward resistance to low level (speech) cross-talk voltages induced in the indicator coil by adjacent coils and are thus effective to suppress such cross-talk. On the other hand they present a low forward resistance to high level ringing voltages and thus do not interfere with the operation of the indicator. It is implied that the latter is of the drop-flap type. It is mentioned that it could alternatively be a bell.
Patent GB-1455480-A (GB)
Title: Multitrack magnetic read/write heads
IPC: G11B5/29
Filed: 1974-05-07
Abstract: 1455480 Multitrack read / write heads HONEYWELL INFORMATION SYSTEMS Inc 7 May 1974 [9 July 1973] 20118/74 Heading G5R A multitrack magnetic recording and playback head has a plurality of transducers the electrical and magnetic parts of which are formed by thin films on a common substrate 30, Fig. 7b, there being a plurality of magnetic read write poles 21, 22, 23 co-operating with a common magnetic pole 20 to define respective read/write transducers, a plurality of base magnetic poles 25, 26, 27, 28 co-operating with common pole 20 to define erase transducers, read/write electrical conductor sections 32, 34, 36, Fig. 7b, between pole 20 and poles 21, 22, 23, and erase electrical conductor sections 50 between pole 20 and poles 25, 26, 27, 28. The erase transducer erase areas between and to the sides of the tracker formed by the read/write transducers. The read/write conductors 32, 34, 36 may have independent connections for each transducer, or these conductors may be formed as a continuous strip extending between end terminal pads (40), (43), Fig. 7c (not shown), which together with two intermediate pads (41), (42) serve to provide connections to three read/write transducers. The base conductors may be similarly formed and connected, or a single common erase conductor 50 may extend between two end terminal pads (52), Fig. 7a (not shown), sections of conductor 50 at poles 25 to 28 being arranged to be near the record medium 12 and sections of conductor 50 between poles 25 to 28 being arranged to be spaced from the record medium 12.
Patent GB-1434477-A (GB)
Title: Liquid distribution apparatus
IPC: B21B45/02
Filed: 1974-05-07
Abstract: 1434477 Cooling rolled stock E J SCHAMING 7 May 1974 [15 Aug 1973 8 Feb 1974] 20143/74 Heading B3M [Also in Division B2] A liquid distribution apparatus, suitable for cooling metal strip issuing from a rolling mill, or for delivering a coating material or lubricant to a moving web, includes a coolant header in which coolant discharge units are removably fitted, each unit being provided with a supply of pressurized control fluid to control the discharge of coolant from the unit in response to demand. Headers 20 and 21, Fig. 1, may be disposed on either side of a rolled strip 22 and discharge liquid coolant on to the strip. The flow of coolant from the individual units is controlled according to the sensed temperature or flatness of the strip and is distributed on the strip to produce a strip free of buckles or twisting. Each unit 23, Fig. 3; is removably fitted into a bore in a header, and is supplied with compressed air to control the coolant flow through the unit. A hollow body portion 36 extends into the header and houses a valve 51 for controlling the flow between coolant inlets 50 and a spray nozzle 73. The valve is movable axially, against spring pressure, by admitting compressed air to a conduit 46, thereby allowing coolant to flow past a seating 58 to the nozzle. A head 23 having two nozzles may be used if desired. An alternative unit 97, Fig. 11, is not screwed into a bore in the header, but bolted in place by bolts 110. It incorporates a similar valve 123, but has a head portion 107 which is dovetailed to the remainder of the head. The (or both) spray heads 136, are located in the portion 107 by eccentric bases 135 to ensure that the heads are oriented in a desired direction.
Patent GB-688025-A (GB)
Title: Improvements in driven pin-wheels for time-piece movements and the like
IPC: G04C3/06
Filed: 1949-08-03
Abstract: <PICT:0688025/IV (a)/1> A time-piece or other precision mechanism includes a pin-wheel, Fig. 8, the disc and pins of which are moulded integrally from organic synthetic material of the polyamide class such as nylon or of the cellulose acetobutyrate class.  A metal pivot for the pin wheel may be set in the wheel during moulding.
Patent GB-357297-A (GB)
Title: Improvements relating to chairs and settees
IPC: A47C17/207
Filed: 1930-07-04
Abstract: 357,297. Seats convertible into bedsteads. HUTCHINSON, E., 221, West Wycombe Road, High Wycombe, Bucking- hamshire. July 4, 1930, No. 20316. [Class 52 (ii).] A chair or settee convertible into a bed comprises a back-rest 3 and upper and lower seat parts 2, 1 interconnected for folding or extension by one continued movement, the lower seat part 1 being connected to the forward edge 9 of the upper seat part and pivoted, as by means of brackets 5, for inversion during the extending movement. Supporting legs 6, 12 may be provided, and the upholstery of the parts 1, 2, 3 may form the bed mattress.