baber/WOPTO huggingface dataset:
Patent GB-971750-A (GB)
Title: 18:20-oxido-steroids and the preparation thereof
IPC: C07J71/00
Filed: 1960-12-22
Abstract: The invention comprises an 18, 20-oxido-pregnane compound having an etherified hydroxy group in the 20-position which is derived from a lower aliphatic or alicyclic alcohol containing up to 7 carbon atoms, and a process for the preparation of a 21-unsubstituted 18, 20-oxido-pregnane compound which contains in the 20-position a double bond or a free or etherified hydroxy group (in the case of the 20-hydroxy-pregnane compound the product may exist as a 18-hydroxy-20-oxa-pregnane compound) by irradiating a 20-oxo-pregnane compound which contains in the 21-position an etherified or esterified hydroxy group (as defined above) or a halogen atom either in an inert organic solvent whereby the D 20-compound is formed or in a lower aliphatic or alicyclic alcohol containing up to 7 carbon atoms whereby the 20-ether compound is formed and, if desired, hydrolyzing a resulting 20-ether compound with a mild hydrolyzing agent to form a free 18, 20-oxido-20-hydroxy compound, and if desired, esterifying a 18, 20-oxido-hydroxy-compound (including the 18,20-oxido-20-hydroxy compound), for example with a carboxylic, sulphonic, sulphuric, phosphoric or hydrohalic acid. In the above process, the 20-oxo-pregnane reactant may be of the 5a -or 5b -series and may be saturated or unsaturated, may contain at the 21-position a formyloxy, acetoxy, propionyloxy, butyryloxy, methanesulphonyloxy or para-toluenesulphonyloxy group or a methoxy, ethoxy or tetrahydropyranyloxy group, or a fluorine, iodine, chlorine or bromine atom, and may contain free or functionally converted hydroxy or oxo groups, alkyl groups and halogen atoms as substituents-particularly 3a -, 3b -, 11a -, or 11b -hydroxy groups which may be in the form of an ester group or a D 4-3-oxo grouping-particularly in the form of a D 5-3-ethylenedioxy ketal grouping.  The preferred 18,20-oxido compounds having a 20-ether group are either of the 5a - or 5b -pregnane series and containing in the 3-position or in each of the 3- and 11-positions a free or esterified a - or b -hydroxy group or of the D 5-pregnane series and containing a ketalized 3-oxo group or a free or esterified 3b -hydroxy group, for example, of the general formulae <FORM:0971750/C1/1> <FORM:0971750/C1/2> wherein R1 represents a hydroxy group etherified with a lower aliphatic or alicyclic alcohol as defined above, R2 and R3 each represent a hydrogen atom or an esterified hydroxy group, R4 represents a hydrogen atom in the a - or b -configuration and X represents two lower alkoxy groups or one lower alkylenedioxy group.  Detailed examples are given describing the above processes in which D 5-18:20-cyclo-3:3-ethylenedioxy-20-hydroxy-21-acetoxy -pregnene and the corresponding 11b -acetoxy-pregnene are formed as by-products as the result of irradiating D 5-3:3-ethylenedioxy-20-oxo-21-acetoxy-pregnene and the corresponding 11b -acetoxy compound respectively.  Specifications 808,173, 927,327 and 957,432 are referred to.
Patent GB-1410504-A (GB)
Title: Rotary piston internal combustion engine
IPC: F02B53/00
Filed: 1972-09-25
Abstract: 1410504 Rotary positive-displacement engines H SABET 25 Sept 1972 [25 Sept 1971]  44279/72 Heading F1F An I.C. engine is identical to that described in Specification 1343492 saving that hollow pistons 1 are united with an annular end-wall 2, have another annular end-wall (not shown) fixed to their flat side faces by screws engaging with some of bores 1' of which the remainder serve as coolant passages, and have grooves 3, 4 through which working chambers 5, 6 between these pistons and the co-operating pistons 11 can communicate with intake and exhaust ports 13, 14 in the casing. Sealing strips 7, 10 are disposed as shown, the strips 10 abutting a tubular shaft 9. To facilitate a two-stroke mode of operation each intake port may be lengthened in the circumferential direction and each exhaust port divided into two ports 16, 17, Fig.5, each of which ports may be connected to a separate exhaust system.
Patent GB-1003889-A (GB)
Title: Guanidines and isothioureas
Inventor: HODSON HAROLD FRANCIS
IPC: C07D239/06
Filed: 1961-12-12
Abstract: The invention comprises guanidines and isothioureas having 12 to 36 carbon atoms either as acid addition salts containing a cation of formula [A1.C(A3).A2]+, wherein there is an additional resonating bond between the carbon atom and one of the A groups, or as the corresponding base, wherein A1 is a group -NHR1, A2 is a group -NH2, -NHR2 or -NR2R3, and A3 is a group NH2, -NHR4 or -SR5, on of A2 and A3 being other than -NH2, or any two of the A groups together with the adjacent carbon atom from a 2-imidazolin-2-yl or 3,4,5,6 - tetrahydropyrmid - 2 - yl group, R1, R2, R3 and R4 are alkyl or alkenyl groups, or R2 and R3 in combination with the adjacent nitrogen atom from a pyrrolidino, piperidino or morpholino group, R1 and R2 being different when A3 is a group -SR5, and R5 is an alkyl group having 1 to 4 carbon atoms, and their preparation by (a) reaction of a thiourea with a compound RX, wherein X is a reactive ester group, to form an isothiourea; (b) reaction of an S-substituted isothiourea with an amine to form a guanidine; and (c) catalytically hydrogenating a compound wherein R is an alkenyl group.  Thiourea starting materials are prepared by reaction of an amine with an isothiocyanate.  Isothiourea starting materials not included in the invention are prepared by the same methods as the isothioureas of the invention.  Hexadecylisothiocyanate is prepared by reaction of hexylamine and carbon disulphide in sodium hydroxide, followed by treatment with ethyl chloroformate.  The compounds of the invention have anthelmintic, amoebicidal and vaccine-enhancing activity and may be used in pharmaceutical compositions in combination with a carrier, for example in forms suitable for oral administration, such as powders, tablets, granules, syrups, cachets, capsules, solutions or suspensions.
Patent GB-1031654-A (GB)
Title: Electromagnetic control mechanism, especially for fluid regulating valves
IPC: F16K31/06
Filed: 1964-11-02
Abstract: 1,031,654. Valves; dashpots. CONCORDIA MASCHINENUND ELEKTRIZITATS G.m.b.H. Nov. 2, 1964 [Nov. 8, 1963], No. 44591/64. Headings F2S and F2V. An electromagnetic fluid control valve actuator comprises a solenoid consisting of coil 4 and piston armature 6 connected to the valve spindle 9 having a return spring 11. A housing 1 contains the solenoid and provides two liquid displacement chambers 5, 12 at opposite ends of the piston. The chambers are connected through a manual throttle 21 to control the rate of displacement. The throttle may be bypassed by a solenoid actuated auxiliary valve 25 to allow free movement. The actuator may also be hydraulically locked by the closing of a second, normally open solenoid valve 29. This valve 29 controls communication between a reserve liquid chamber 27 which is open to atmosphere, and a chamber 16 enclosed by an extension 13 of the armature 6 and by a manually adjustable plug 17 which is operable, on isolation of chamber 16, to adjust the position of the actuator, the arrangement being that extension 13 and plug 17 cannot abut each other in any position.
Patent GB-933849-A (GB)
Title: Improvements in or relating to methods of regulating the temperature of superheated steam and apparatus for performing such methods
Inventor: POLAK BOHUSLAV
IPC: F22G5/16
Filed: 1961-12-14
Abstract: 933,849. Regulating superheated steam temperature. PRVNI BRNENSKA STROJIRNA, ZAVODY KLEMENTA GOTTWALDA, NARODNI PODNIK. Dec. 14, 1961, No. 44939/61. Class 123 (3). To regulate the final temperature of superheated steam the entire supply of feedwater to a steam generator flows from an economiser 1, 1a to a surface cooler 2 to cool a proportion of the superheated steam before flowing through line 3 to the steam and water drum 4 of the generator. Steam from the drum flows through a superheater 5 to a regulating device 6 regulating the quantity of steam which flows through and is cooled in the cooler 2. The cooled steam remixes with the stream of uncooled steam before final superheating is effected in superheater stage 10. In a modification, Fig. 1 (not shown), the cooler is horizontal and is connected between the two stages of an economiser.
Patent GB-1196609-A (GB)
Title: Improvements relating to Pressing Metal Work-pieces
IPC: B21D51/40
Filed: 1967-10-04
Abstract: 1,196,609. Making containers. AMERICAN FLANGE & MFG. CO. Inc. 4 Oct., 1967 [31 Oct., 1966], No. 45148/67. Heading B3A and B3Q.  A method of securing together metal parts comprises feeding a first part 11 beneath a die 16 in a press, placing a second part 6 beneath the die, closing the die on to the parts, ejecting them from beneath the die and simultaneously feeding another first part 11 into position beneath the die. As applied to securing simultaneously pairs of closure flanges 11 in openings in drum heads 6, the flanges are fed along shoots 28 to anvils 17, a drum head is placed manually over the flanges and curling dies 16 are operated to curl the ends of the flanges over necks 10 on the drum head. The shoots are connected at one end to locating rings 23, Fig. 7 and Fig. 9 (not shown), for the flanges, which are fed along the shoots by pushers 42, 43. Rails 38, 39 supporting the pushers 42, 43 and a pusher 45a for the drum ends are interconnected by a member 40 connected to a pneumatic cylinder 31 for operating the feed. The press-ram 2 may be operated mechanically or by an hydraulic cylinder 3, and the feed cylinder 31 is operated by a four-way valve (not shown) controlled by valves 47, 55. Operation.-A first flange 11 is placed manually in each ring 23 and a drum-end located over the flanges. A further flange is placed in each feed shoot 28 before the press is cycled. An abutment 53, Fig. 1, on the platen 4 deflects a pawl 52 as the ram descends without operating valve 47. During the return stroke of the platen, the pawl 52 opens the valve 47, causing the four-way valve to operate the cylinder 31 in a feed stroke. As the second pair of flanges are fed along the shoots 28 towards the anvils, the drum-end in which the first pair of flanges has been secured is discharged by the pusher 45a on to a conveyer (58), Fig. 6 (not shown). At the end of the feed stroke, a cam 57 on the rail 38 opens valve 55, causing return of the pushers.
Patent GB-1346390-A (GB)
Title: Method for producing wood veneer having reinforced edges  and veneer thereby provided
IPC: B27L5/00
Filed: 1972-09-29
Abstract: 1346390 Producing wood veneer P ALPI V ALPI M AGAMI and G SENZANI [trading as ALPI PIETRO e FIGLIO & C] 29 Sept 1972 [1 Oct 1971] 45183/72 Heading B5L A method of producing wood veneer with a reinforced edge comprises spreading adhesive on the surface of one end 14 of a block of wood extending substantially perpendicular to the grain, and/or on a face of a sheet 16 of reinforcing material, pressure adhering the sheet 16 to said block surface by maintaining pressure for a time sufficient to cure the adhesive, and cutting the block thus prepared into thin sheets of veneer so that one edge of each sheet is reinforced by a strip of reinforcing material. The reinforcing sheets are preferably attached to both ends of the block prior to cutting. The block may be cut from a log or consist of a plurality of superimposed sheets glued together. The reinforcing material may be paper, cloth, or plastics material. In the latter case the plastics material may be partially softened by heat during the pressure adhering step to cause it to partially enter pores and slits in the wood.
Patent GB-1219672-A (GB)
Title: A combined oil filler port and air breather
Inventor: BUTTON DAVID
IPC: F15B21/044
Filed: 1968-09-24
Abstract: 1,219,672. Oil filler cap fitting. U.C.C. FILTERS (HYDRAULICS) Ltd. 5 June, 1969 [24 Sept., 1968], No. 45277/68. Headings B1D and B1T. [Also in Division B8] An oil filler cap C, which releasably engages a fitting 1 secured round an opening in the top W of an oil reservoir in a hydraulic system, comprises annular filter element 11 and inlet and outlet openings 14, 15 so located that air drawn into the reservoir as the oil level therein falls undergoes a reversal of direction and filtration to remove dust. A second filter element 17 secured inside the reservoir filters oil poured through opening 2 when cap C is removed. Tongues C on cap C engage cams 6 on fitting 1, and the cap is tightened by rotating it half a turn.
Patent GB-1045817-A (GB)
Title: Apparatus for detecting rubbing contact between relatively movable parts of a machine
Inventor: DICKIN THOMAS LLOYD ROBERT SPE
IPC: F16J15/44
Filed: 1964-11-06
Abstract: 1,045,817. Seals. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Sept. 28, 1965 [Nov. 6, 1964], No. 45319/64. Heading F2B. Apparatus for detecting rubbing contact between normally separated relatively movable parts (e.g. the rotatable and stationary parts of a labyrinth gland in a steam turbine) comprises means for producing a difference of electrical potential between the two parts when they are not in contact and means which are sensitive to the magnitude of the electrical resistance between the two parts and arranged to give a signal, indication or control indicative of the separation or contact between the two parts. The rotor 1 is earthed by a brush contact 26, Fig. 2 (not shown), and two terminals 19, 20 are provided on each segment 4 of the gland. Leads 21, 22 from the terminals are carried by cables 23 to test terminals T1 . . . TN arid to contacts S1 . . . SN of a rotary switch SW, the moving contact-arm of which is connected to an oscilloscope DD provided with a first beam for displaying the amplitude proportional to the voltage between leads 21 and earth and a second beam for indicating the angular position of the rotor. The rotary switch SW may be stepped round either manually or automatically by a drive MV and, if desired, the results recorded on a film F. A multi-channel recorder may be employed for monitoring the gland segments over a long period of time.
Patent GB-1412002-A (GB)
Title: Cellulosic web and formation thereof
Inventor: FAESSINGER ROBERT W
IPC: D06M13/325
Filed: 1972-10-03
Abstract: 1412002 Cellulosic fibres grafted with salts SCOTT PAPER CO 3 Oct 1972 [8 Oct 1971] 45580/72 Headings C3G and C3P [Also in Division D2] Rayon or cotton fibres of length 6.0 mm. or longer have grafted thereto an ammonium, an alkali metal or organic amine salt of a polymer comprising units derived from acrylic acid, methacrylic acid or sodium styrene sulphonate, or a copolymer comprising such units of a comonomer. Examples are given in which (a) rayon is grafted with methacrylic and/or acrylic acid, with sodium styrene sulphonate or with a mixture of acrylic acid and acrylamide, ethyl acrylate or acrylonitrile, treated with ammonium hydroxide and blended with wood pulp; (b) rayon is grafted with acrylic acid, treated with ethanolamine or ammonium bicarbonate or carbonate, and blended as in (a); (c) cotton is grafted with acrylic acid and treated with ammonium hydroxide; (d) rayon is grafted with methyl acrylate, and saponified with sodium hydroxide.
Patent GB-1017911-A (GB)
Title: Improvements in or relating to locking differential gears
Inventor: KIRBY CHARLES HENRY
IPC: F16H48/30
Filed: 1962-12-01
Abstract: 1,017,911. Differential gearing. P. R. MOTORS Ltd. Nov. 29, 1963 [Dec. 1, 1962], No. 45584/62. Heading F2D. Side wheels 5, 5a of a motor vehicle, dumper truck or tractor bevel gear differential are locked together for solid drive by a positive splined dog clutch 9 which may be slid axially in the planet spider to engage both side wheels, under control of a fork 16 engaging a collar 15 of a transverse pin 13 which moves in a slot 14 in the half-shaft to operate a thrust-pin 12. Disengagement may be effected by a spring 17 or positively in which latter case the dog clutch 9 is integral with the thrust rod 12 which is connected to the transverse pin 13.
Patent GB-1371027-A (GB)
Title: Cooling and freeze-concentrating liquid food products
IPC: F28B3/06
Filed: 1970-09-24
Abstract: 1371027 Cooling liquids BRITISH OXYGEN CO Ltd 14 Sept 1971 [24 Sept 1970] 45621/70 Headings F4H and F4K [Also in Division B1] A method for cooling a liquid food product, includes the step of introducing an inert liquefied gas through at least one jet directly into the product. Examples of suitable liquefied gases for milk cooling are liquid nitrogen and liquid argon. The gas may be introduced into the liquid product through one or more sprayheaders 8, or by inlet jets directed so that liquefied gas introduced through them imparts a swirling motion to the liquids in the vessel 14. The vessel 14 is also provided with an impeller type of stirrer 26 driven by a motor 27.
Patent GB-1002824-A (GB)
Title: Improvements in steam flat irons
Inventor: HEIDTKAMP GUNTHER
IPC: D06F75/18
Filed: 1961-12-20
Abstract: In a flash-type steam iron, an evaporating chamber communicates with a steam distributing space through a throttling diaphragm in an aperture in an intervening wall.  Thus if too much steam is being produced, steam pressure builds up in the evaporating chamber to prevent further ingress of water into the evaporating chamber.  The diaphragm may have a central hole and have its periphery fixed in the wall, or alternatively it may be a resilient membrane adapted to be forced against projections arranged around the aperture under high steam pressure but be spaced apart from the projections under low pressure.
Patent GB-1360099-A (GB)
Title: Data sensing arrangement in combination with a data carrier
IPC: G06K7/04
Filed: 1971-09-30
Abstract: 1360099 Data reader SIEMENS AG 30 Sept 1971 [3 Oct 1970] 45676/71 Heading G4M A reader for data in the form of holes or other irregularities in a cylindrical specimen tube has a sensor 29 resiliently coupled to a piezoelectric transducer 9 resiliently coupled to a fixed pin 10. When the sensor enters a hole in cylinder 25 a signal on electrodes 12 produces a pulse from pulse-shaper 13 and is fed to a processor 14. In an alternate embodiment (Fig. 3, not shown) the sensor is coupled to a spring leaf and has a hammer arranged to strike the transducer if the sensor enters a hole. Cylinder 12 is rotated by motor 7 via friction wheel 6.
Patent GB-1174989-A (GB)
Title: Improvements relating to Rotary-Piston Internal Combustion Engines
IPC: F02B53/00
Filed: 1967-10-06
Abstract: 1,174,989. Rotary piston I.C. engines. DAIMLER-BENZ A.G. Oct.6, 1967 [Oct.6, 1966j, No.45811/67. Heading F1F. In a rotary piston I. C. engine of the trochoidal n and n + 1 lobe type cooling of the piston 6, Fig.1, is effected by oil in a plurality of chambers 19, the oil being introduced to these chambers from a space 14 by centrifugal action through bores 21 in the piston adjacent one end of an eccentric 5, whereon the piston is rotatably mounted, and subsequently ejected from these chambers due to centrifugal action into a plurality of compartments 26, Fig. 3, through bores 24 in the piston adjacent the other end of the eccentric. Periodically and sequentially the oil in the compartments is thrown therefrom into a space 15 and collected therefrom by a scoop, or "screen" 31, Fig. 4, which is fixed to said other end of the eccentric, the screen being shaped so as to direct the oil through an opening in an adjacent end wall 2 of the housing containing a bearing 3 for a rotatable shaft 4 to which the eccentric is attached. The compartments aforesaid are separated from one another by arcuate walls 27 whose trailing surfaces 28, relative to the direction of rotation 22 of the piston, are rendered tangential to a circle 29 that is concentric with the piston so that when each of the walls reaches a position 27a the vectorial sum of two components of velocity v and w of the oil is directed towards a point 37 and thereby causes the oil to leave this wall. Since the angular velocity of the screen is greater than that of the piston, the oil is collected before it reaches the point 37. Annular seal 17 on the piston prevent the oil escaping from the spaces 14, 15 into the working chambers due to centrifugal action. Gears 11, 12 for controlling the planetary motion of the piston are situated within the space 14.
Patent GB-1395732-A (GB)
Title: Forging manipulator
IPC: B21J13/10
Filed: 1972-10-04
Abstract: 1395732 Forging E RIBBACK 4 Oct 1972 [5 Oct 1971] 45814/72 Heading B3H A forging manipulator comprises a workpiece holder 4 moved axially by a spindle drive and an hydraulic drive, the latter of which can be locked to form a substantially rigid link between the spindle drive and the workpiece holder. The hydraulic drive is used initially and comprises a hollow piston-rod 13 of a piston 12 in a non- rotatable tubular spindle 7. The spindle is externally threaded and engages an axially fixed nut 8 drivable by chain 11 from a motor 22 which is switched on by a pressure operated switch 19 to effect the mechanical drive when the pressure in the supply line 15 to the hydraulic drive rises after the piston 12 has abutted the end stop 20. The workpiece gripper comprises a chuck 5 which is rotated during its advance towards the hammer 2 by a motor 6. The workpiece is fed to the gripper 4 through the pistonrod 13.
Patent GB-1014393-A (GB)
Title: Olefine polymers modified with polypropylene wax
IPC: C08L23/02
Filed: 1961-12-21
Abstract: A composition comprises (1) at least one solid head-to-tail hydrocarbon polymer of an a -olefine containing at least 3 C atoms, the polymer having a density of at least 0.80, melting point 45-350 DEG C. and inherent viscosity 0.9-5, and (2) 3-50% of polypropylene wax of density at least 0.88, melting point 130-180 DEG  C. and inherent viscosity 0.05-0.5.  The a -olefine may be propylene or butene-1-4-methyl-1 - pentene, 3 - methyl - 1 - butene or styrene (which may be copolymerized with butadiene) and may be copolymerized, e.g. with ethylene. The composition may contain an antioxidant, e.g. butylated hydroxy toluene.
Patent GB-1058552-A (GB)
Title: Improvements relating to weft knitting machines
Inventor: CARROTTE FREDERICK HENRY
IPC: D04B9/38
Filed: 1962-12-06
Abstract: 1,058,552. Knitting-machines. A. KIRKLAND & CO. Ltd. Dec. 5, 1963 [Dec. 6, 1962], No. 46040/62. Heading D1C. To avoid undue stress being exerted on the pelerine loop spreading instruments of a cylinder and dial machine due to their flexing when withdrawn after transferring the intervening sinker loops to the adjacent needles, each needle of a pair of adjacent needles has associated with it a pair of spring blades 3, 4, one of which is cranked to spread the loop when the blades are advanced to engage the sinker loops and extend it over its associated needle and the other of which passes to the other side of the needle. The distance between the needles is therefor not material as each pair of blades merely has to flex about its own needle.