baber/WOPTO huggingface dataset:
Patent GB-143427-A (GB)
Title: Theatre and like seat fittings for holding hats and other articles
IPC: A47C7/64
Filed: 1919-07-15
Abstract: 143,427. Manifold, F. July 15, 1919. Hooks. - Relates to theatre and like seat fittings for holding hats &c., and consists in the combination with a casing of a hook and clip which can be moved into a n operative position when required, the hook being normally sheathed in the casing. The device shown in Fig. 1 comprises a U-shaped casing a in which is pivoted at c a hook h having at its lower end a clip f. The hook is normally drawn inwards by a spring i, but can be turned downwards in order that a hat may be hung on it; or alternatively, a hat may be suspended by its brim from the clip f. Instead of a spring, a weight may be used to move the hook by gravity into the inoperative position. The combined hook and clip may be slidably mounted in the casing, instead of being pivoted, as shown for example in Fig. 8.
Patent GB-670202-A (GB)
Title: Reaction of enol esters with alkoxymonocarboxylic anhydrides
IPC: C07C69/533
Filed: 1949-07-05
Abstract: An aliphatic monocarboxylic acid ester of the enol form of an aliphatic ketone is converted into a second ester having an alkoxy-acyl group in place of the acyl group of the first ester by heating with an alkoxymonocarboxylic aliphatic anhydride to a reacting temperature in the presence of an acidic esterification catalyst, the anhydride having alkoxyacyl groups containing up to 10 carbon atoms and at least two of such carbon atoms being in the acyl group to which the alkoxy group is attached.  The displaced acyl group enters the anhydride to form a mixed anhydride.  Many anhydrides are specified, representative being alpha-ethoxyacetic, alpha-isoproxybutyric and beta-methoxy-propionic anhydrides.  If the carboxylic acid is used in place of the anhydride the enol ester first reacts with the acid to form an anhydride which then reacts as above.  Many esters for conversion are specified, representative being acetic, myristic and crotonic esters of the enolic form of such ketones as acetone and methyl decyl, dipropyl, propylhexyl, and dipentyl ketones and acetylacetone.  Reaction temperatures may be 40-275 DEG , e.g. 80-175 DEG  C.  Liquid and vapour phase reactions may be effected and when refluxing a time of about one to five hours is suitable.  Pressures are optional.  The reaction is an equilibrium one and conventional methods for ensuring completion may be adopted, e.g. by concentration changes and removal of one of the products from the reaction.  Acids specified are sulphuric, which is preferred, p-toluene sulphonic and phosphoric acid compounds such as zinc and aluminium chloride and boron trifluoride may be used.  Specified quantities of catalyst range from 0.1-10 per cent, although about 0.5 per cent is usually convenient.  The acid is preferably neutralized before the products are distilled off from the reaction mixture.  In an example, isopropenyl acetate and beta-ethoxypropionic anhydride yield isopropenyl beta-ethoxypropionate on refluxing at 115 DEG  C. in the presence of sulphuric acid.  Specification 627,992 is referred to.  The Specification as open to inspection under Sect. 91 includes the use of anhydrides whose acyl groups may be cyclic, e.g. alpha and betacyclohexoxy derivatives of propionic and butyric acids, p-methoxybenzoic anhydride and 4-methoxy-cyclohexane carboxylic acid, and of cyclic starting esters, e.g. open-chain acid and cyclohexanone esters of enolic ketones such as methyl cyclohexyl ketone, cyclohexanone, acetophenone and benzyl methyl ketone. Sorbic acid is an additional acid whose esters may be used.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1001192-A (GB)
Title: Improvements in or relating to processes for the preparation of a steroid compound
IPC: C07C49/755
Filed: 1962-05-08
Abstract: The invention comprises 19-nor-4,5-secopregn-9-ene-3,5,20 -trione and a process for the preparation of 19-nor-pregn-4,9-dien-3,20-dione, in which a 5 - enamino - 19 - nor - des - A-pregn-5(10),9(11) -dien-20-one having the general formula: <FORM:1001192/C2/1> (where R and R1, which may be the same or different, both represent lower alkyl groups each having from 1-6 carbon atoms or together with the nitrogen atom constitute a substituted or unsubstituted nitrogen- or nitrogen- and oxygen-containing heterocyclic ring system) is condensed with a 1-halo-3-chloro-2-butene to form 3-chloro-19-nor-4,5-seco-pregna-2,9-diene-5,20-dione, which compound is subjected to acid hydrolysis to form 19 - nor - 4,5 - seco - pregn - 9 - ene - 3,5,20-trione and the latter treated with an alkaline agent to effect cyclization of the A-ring thus yielding the desired 19-nor-pregna-4,9-dien-3,20-dione. The condensation of the enamine with 1,3-dichloro-2-butene may be effected in the presence of an alkali metal iodide.  Cyclization may be effected with sodium t-amylate. Specifications 1,001,194, 1,001,195, 1,001,196 and 1,001,197 are referred to.
Patent GB-1442067-A (GB)
Title: Ladder polyorganosiloxanes
IPC: C08G77/24
Filed: 1974-04-23
Abstract: 1442067 Ladder polyorganosiloxanes INST ELEMENT SOEDINENY AKAD NAUK SSSR 23 April 1974 17772/74 Heading C3T A polyorganosiloxane having a ladder structure in which two siloxane chains are bridged by oxygen atoms linking silicon atoms in different chains and having the formula in which X is F, Cl or Br or a mixture thereof and n is from 2 x 10 to 2 x 10<SP>4</SP> is prepared by (a) subjecting one or more halophenyltrichlorosilanes of the formula to hydrolytic polycondensation at 5-50‹ C. in an organic solvent stable to acids and immiscible with water, sufficient water being used to completely hydrolyse the halophenyltrichlorosilane(s), (b) separating the aqueous phase, (c) washing the solution of the reaction products in the organic solvent with water until the pH of the wash water is 6-7, (d) polymerizing the product at 80-250‹ C. in the presence of 0À002-1À0% wt. of a nucleophilic catalyst. The polymers may be represented by the structural formula In a preferred embodiment step (d) is carried out in 2 stages by carrying out the catalytic polymerization at 80-110‹ C. and subsequently evaporating the solution under vacuum until the concentration is from 50-70% wt., adding to the solution the high boiling compounds diphenyl, diphenyl oxide, a mixture thereof, or ditolylmethane in an amount of 1-10% wt. of the polyorganosiloxane and carrying out the catalytic polymerization at 220-250‹ C., the cyclic polyorganosiloxane produced having a value of n from 1 x 10<SP>2</SP> to 2 x 10<SP>4</SP>. In another embodiment the above 2-stage process is carried out in a single stage by adding the catalyst and the high boiling compound to the solution before catalytic polymerization in step (d) and carrying out the polymerization at 220-250‹ C. Suitable solvents are diethyl ether, benzene or toluene. Suitable catalysts are NaOH, KOH or CsOH, KO[Si(CH 3 ) 2 O] n SiOH, (CH 3 ) 4 NOH or (CH 3 ) 4 NO[Si(CH 3 ) 2 O] n N(CH 3 ) 4 . Step (d) may be carried out under nitrogen or argon.
Patent GB-165748-A (GB)
Title: Improvements in or relating to air-craft
IPC: B64C27/02
Filed: 1921-06-30
Abstract: 165,748. La Cierva y Codorniu, J. de. July 1, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Screw and like propellers.-The pitch of each blade of an aerial propeller may be varied as shown in Figs. 3 and 4, where the blade 14 is carried by a rigid spar 15 which is secured to a rotatable sleeve 16. Variation of pitch is effected by axial movement of a shaft 20 through a member 18, or by rotation of the spar 15.
Patent GB-279363-A (GB)
Title: Improvements in or relating to bottles and like receptacles for liquids
IPC: B43L25/02
Filed: 1926-10-16
Abstract: 279,363. Collins, A. D. Oct. 16, 1926. Bottles fitted to facilitate use of non-potable substances. - Relates to bottles and like receptacles of the kind having a liquid retaining compartment or sump separate from the receptacle. According to the invention, the sump is contained wholly within the receptacle and is a tight fit for substantially the whole of its length in a recess in the wall of the receptacle. As shown, the sump 12, which may be of celluloid, rubber, &c., is passed through the neck 10 of the bottle into which recess 18 the opening of which has a width of about two-fifths of the circumference of the recess. The depth is such that a space 16 is left for filling the sump by tilting.
Patent GB-733526-A (GB)
Title: Improvements in and relating to apparatus for dispensing liquid in measured quantities
Inventor: STILL FREDERICK WILLIAM
IPC: G01F11/32
Filed: 1952-06-27
Abstract: 733,526. Dispensing measured quantities of liquids. STILL & SONS, Ltd., W. M. June 29, 1953 [June 27, 1952], No. 18035/53. Divided out of 733,488, [Group VI]. Class 106 (5). Apparatus for dispensing liquid in measured quantities comprises a main container 10 connected through a valve-controlled communicating passage 12 to a measuring chamber 14 having a base 14a which can be moved away from the walls of the chamber for the purpose of discharging the contents, means being provided outside the measuring chamber for ensuring that the movement of the base can occur only after the valve 16 has been moved to its closed position. In operation, a lever 37 connected by a link 36 to a bracket 20 is swung manually about a pivot 39 to cause the bracket to descend against the action of a weak spring 32 until the valve 16 is closed, a spring 22 holding the valve firmly on its seat. Further movement of the lever 37 takes place against the action of a strong spring 30 and produces a downward axial movement of a rod 26 so that the measuring chamber and its base are lowered until the chamber is engaged by stops 38, 40 while the base continues its movement to permit the contents of the chamber to discharge into a pan 41 where they may be diluted by a supply of water from a spring-loaded valve 44 actuated by an extension 45 on the lever 37. The latter is then released and the springs 22, 30, 32 return the parts to the positions shown in Fig. 1. Frusto-spherical sealing surfaces are provided on the valve 16, passage 12 and chamber 14 which also has a channel 42 to receive the liquid from the passage 12. To facilitate cleaning, the rod for the valve 16 is mounted so that it can be slipped out of the bracket 20 while the stop 40 may be retracted against a spring to allow the .measuring chamber to be removed.
Patent GB-403681-A (GB)
Title: Improvements relating to firebars for firegrate bottoms
IPC: F23H9/00
Filed: 1932-06-27
Abstract: 403,681. Firegrates. PARK FOUNDRY (BELPER), Ltd., 10, Mortimer Street, London, and CORBY, S. F., River View, Derby Road, Belper, Derbyshire. June 27, 1932, No. 18045. [Class 51 (i).] Rocking firebars 13 having depending lugs 14 engaged by an actuating member 16 are supported at their ends 12 in recesses 11 in a frame 10, and the recesses are partly open at the bottom, as indicated at 11a, in order that the actuation of the bars may cause ashes collecting in them to fall away. The ends 12 of the bars are tapered to form knife-edge supports, and the lugs 14 engage slots in the upper edge of a slidable actuating bar 16.
Patent GB-379792-A (GB)
Title: Improvements in aircraft having freely rotative sustaining means
IPC: B64C27/02
Filed: 1931-06-22
Abstract: 379,792. Aircraft with rotary wing systems. LA CIERVA, J. DE, Bush House, Aldwych, London. June 22, 1931, No. 18057. [Class 4.] An aircraft having a sustaining rotor of the normally wind-driven type has the structural support for the rotor incorporated in or enclosed by an upwardly extending streamlined part of the body covering of the aircraft. As applied to a cabin machine, Fig. 1, a pylon supporting structure for the rotor hub comprises struts 24, 25 secured at 22, 23 to a horizontal body member 19 situated at the top of the cabin and braced by members 20, 21. Struts 35 bracing fixed wings 14 are also secured at 23. Struts 24, 25 are secured at their apex to a member 26 supporting a casing 27 containing the rotor hub bearings, driving gear if such is fitted, and hub brake. The whole is enclosed by sheet metal casing 28 secured by clips 29 and split at 30 for easy removal. An inspection door-is fitted at 32. The rear part of casing 28 is faired into a fairing 33 which tapers rearwardly into a flat fin of which the contour merges into that of a rudder 17. All the members associated with the rotor hub are thus enclosed except the actual hub member 12 which projects through an aperture 36 in casing 28. According to a modification the skin of the " hump " formed by the member 28 may have the load-bearing members built into it. According to the Provisional Specification the skin of the " hump " may itself be the load-carrying member.
Patent GB-237262-A (GB)
Title: Improvements in or relating to electric dust precipitating installations
IPC: B03C3/60
Filed: 1925-07-15
Abstract: 237,262. Siemens - Schuckertwerke Ges. July 16, 1924, [Convention date]. Gases, electrically precipitating suspended particles from.- A grid electrode for an electric dust precipitator is made of expanded metal. Metal strips 1, 2 may be welded to the edges of the electrode to strengthen it.
Patent GB-1363592-A (GB)
Title: Excessive noise rejecting system
IPC: G08G1/017
Filed: 1972-04-19
Abstract: 1363592 Vehicle monitoring system GENERAL ELECTRIC CO 19 April 1972 [3 May 1971] 18097/72 Heading G4H A vehicle monitoring system using reradiated frequency signals in an electromagnetic noise environment (e.g. on a toll road) incorporates a noise error correcting and excessive noise rejecting system. Each vehicle 10, Fig. 1 (not shown) is irradiated by a beam from a central station sweep oscillator (22) which generates a 290 kHz-480 kHz frequency spectrum nominally divided into twenty discrete steps at 10 kHz intervals; the vehicle receiver (11) contains a series resonant circuit incorporating eight piezo electric elements, Fig. 2 (not shown), so as to return eight of twenty possible frequencies to form a four-symbol identification message (Fig. 3) in 2-out-of-5 code. The message is detected at the central station and fed via a gate 83, Fig. 5, to a register 87 whence it is tested for excessive noise by counters 97, 99 and detector 100. Excessive noise is defined to be the occurrence of four is in any three symbols: 97 produces an output for any symbol having four 1s, and 99, 100 detect three such outputs to cause a reset circuit 100 to clear register 87. If excessive noise is not detected, a second scan yields another message, which is fed via a gate 84 to a register 91, whence it is tested for excessive noise in counters 110, 99 and compared bit by bit with the first message in a comparator 104: a bit in register 87 is removed therefrom if it is absent from the corresponding position in register 91. Finally, the contents of register 87 are tested in counter 97 and gates 113, 114 to see whether there are now exactly two is in each symbol: if so, the output of a flip-flop 118 is unchanged and the contents of 87 are transferred to a printer 122; if not, 118 changes state to activate circuit 101. Synchronization is provided by clock pulses applied to terminal 88: twenty pulses step registers 87, 91 and a count of five signals from counter 92 is fed to counters 108, 97 and to gate 113.
Patent GB-200831-A (GB)
Title: Improvements in flow control valves
IPC: F16K17/32
Filed: 1923-07-13
Abstract: 200,831. Larner, C. W. July 14, 1922, [Convention date]. Valves controlled by pilot or relay valves.-A valve device of the type in which the valve plunger slides in an internal cylinder supported by ribs within an external casing so as to leave an annular passage-way, has fluid pressure means for moving the valve plunger controlled by a piston working in a cylinder situated outside the main casing, said cylinder having two pressure inlets and a third passage connected through a three way cock to pressure or exhaust. In the form shown in the Figure the movement of the plunger 7 to and from its seat 8 is controlled by a pilot valve 10 mounted in a hollow spindle 11 and adapted to engage alternately with seats 9 or 12 so as to admit or exhaust fluid pressure from the actuating chamber 16. The hollow spindle passes through a partition 13 into a chamber 15 open to conduit pressure through ports 17 and is formed with a rack 14 coupled by an idle pinion to a second rack 18<1> connected by a rod 21 to a piston 22 working in a cylinder 23. The top of the cylinder is connected to the main inlet by pipes 24, 25 controlled by a valve 28 and to the cutlet by a pipe controlled by a valve 33 adapted also to be connected to exhaust through a valve controlled connection 34. The lower part of the cylinder is connected to the inlet through a pipe 26 controlled by a valve 29 and through a pipe 27 controlled by a three-way cock 30 which may also be used to connect the lower part of the cylinder to the exhaust conduit 31. When closed the valve may be opened by opening valve 28 and connecting pipe 27 to exhaust, valves 29, 33, 34 being closed. By closing valves 28, 34, opening valves 29, 33 and connecting pipes 24 and 27, the device is set so as to close automatically in the event of an abnormal reduction of pressure in the outlet. The valve may be closed manually by closing valve 33 and opening the valve 34. The rate of closing is regulated by positioning the pipe 26 so that it is closed bv the initial movement of the piston and throttling the pipe 32 by the valve 33 or by connecting the pipe 32 to the cylinder at several points each separately throttled. The piston 22 may be actuated by a separate pressure fluid under separate control for example that of a centrifugal governor. Holes 35, 36 are provided in the cylinder and piston rod whereby a pin may be inserted to lock the valve in its closed position. In a modification the rack 14 is formed on the upper side of the rod 11 and the connections to the actuating cylinder reversed. In a further modification the piston is secured to a prolongation of the rod 11 and the chamber 15 is dispensed with.
Patent GB-335162-A (GB)
Title: Improvements in warp sizing machine
IPC: D06B3/04
Filed: 1929-06-13
Abstract: 335,162. Johnson, C. B. June 13, 1929. Yarns, warping and beaming.-In a warp sizing machine having apparatus for applying size to the warp and drying it thereon, the machine including a rotary system adapted to advance the warp at a constant velocity, the warp is divided into sections which are respectively wound upon rotary cores which are respectively driven from the rotary system through several slip-friction rotation-transmitting devices. Section A, Fig. 1, of warp are drawn from a beam 1 through a sizing quetch 2 by driving drums 3 to be wound on rotary cores supported by headstocks 41 mounted on a carriage 15 movable transversely of the warp sections across the machine framing 13. Arms 14, Fig. 2, on the framing 13 carry rollers on which the carriage 15 is traversed by a lever 18 rocked by a cam on a shaft 20 driven from the drums 3, the disposition of the carriage relative to the lever being adjusted by a hand screw 29. The carriage comprises three parallel bars 15<a> connected at their ends by cross-heads 15<b>, and parallel shafts 30 having splined on them sprockets 33 rotated by a chain 37 which passes around them and a lower sprocket driven by the driving means for the drums 3, the drive being thus independent of the position of the carriage on the arms 14. For each warp section, a headstock 41 is secured between a pair of the bars 15<a> above one of the shafts 30, the lower portion of the housing of the headstock being hinged to allow it to be placed over a pinion 46 splined on the shaft 30 to permit adjustment therealong. The pinion 46, Fig. 7, meshes with a second pinion 47 frictionally connected to a coaxial pinion 48 adapted to drive a pinion 45<b> to which the core B for the warp is detachably secured. A tail piece 55 for the core is clamped to one of the bars 15<a>. The drive of the shaft 20 may be disconnected if a spiral wind is not desired. In operation, as the winding on the cores B proceeds. the friction drive between the pinions 47, 48 slips, the amount being regulated by a nut 51 which engages a spring 52 surrounding the shaft of the pinion 48.
Patent GB-530356-A (GB)
Title: Improvements relating to axial-flow rotary fans
IPC: F04D29/34
Filed: 1939-06-22
Abstract: 530,356. Screw fans. SERCK RADIATORS, Ltd., and GEE, W. L. June 22, 1939, No. 18184. [Class 110 (i)] The,blades of an axial flow fan are attached to the boss a by making slits f, g in the roots and bending the slit portions outwardly in opposite directions to form parallel lugs h which are bolted &c. to the opposite faces of the boss.
Patent GB-378150-A (GB)
Title: Improvements in or relating to electric couplings
IPC: H01R31/00
Filed: 1931-06-23
Abstract: 378,150. Plug and two-part couplings. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and HARRISON, W., Witton Moulded Insulation Works, Witton, Birmingham. June 23, 1931, No. 18185. [Class 38 (i).] The body of a combined socket and bayonet cap adapter is moulded in two parts 1, 2 held together by the socket contacts 16 and their securing screws 18 that also form the contacts 19 of the bayonet cap adapter. The two parts of the body are locked against relative rotation by a projection 13 and notch 14. The sockets may be drilled eccentrically and turned to adjust their pitch. Bosses 11 surround and protect the sockets. A hollow 6 is moulded in the portion 4 through which the bayonet pin 15 passes.
Patent GB-1134946-A (GB)
Title: Method and apparatus for the removal of outer coverings from seeds
IPC: D01B1/04
Filed: 1966-04-26
Abstract: 1,134,946. Removing outer coverings of seeds. UNILEVER Ltd. 26 April, 1966 [16 July, 1965], No. 18188/66. Heading A2Q. A method of removing outer coverings, e.g. lint or fluff, from seeds, e.g. cottonseeds, comprises passing the seeds through a heating zone the temperature of which is at least 500‹F., to burn off or char the outer coverings, conditions at the heating zone being turbulent so as to give a rate of heat transfer to the seeds of at least 90,000 Btu/hr./sq. ft. of seed surface area and the residence time of the seeds in the heating zone being short (e.g. less than 1 sec.) so that the outer coverings reach their ignition temperatures without the kernels of the seeds being overheated. As shown, seeds are passed by channels 12, 14 into heating zone 76 where they meet a high velocity ignited gas stream issuing from below, and conveyed along zone 76 which receives jets of air from jets 34, 36 to aid the conveying of the seeds, to outlet conduit 18, where the heated seeds are cooled by air from jets 50. The cooled seeds drop by gravity into an outlet and the exhaust gases are conveyed upwardly. The gas stream comprises a mixture of air from source 32 and light petroleum gas from a source (not shown), the mixture being ignited by an ignition jet (not shown).
Patent GB-937592-A (GB)
Title: Improvements in or relating to the polymerisation of alpha-olefins
IPC: C08F4/64
Filed: 1961-05-18
Abstract: Alkenes, particularly 1-alkenes containing 3 to 8 carbon atoms are polymerized to solid crystalline polymers in the presence of a catalyst comprising an alkyl aluminium dihalide, titanium trichloride and an alkali metal amide, the mol. ratio of alkyl aluminium dihalide to alkali metal amide being 0,3:1 to 5:1. Specified alkenes are propylene, butene-1, pentene-1 and 4-methyl pentene-1.  The alkyl aluminium dihalide may be ethyl aluminium dichloride, propyl aluminium dichloride, butyl aluminium dichloride or the corresponding bromine and iodine analogues thereof.  The titanium trichloride is preferably predominantly amorphous, e.g. prepared by reducing titanium tetrachloride with hydrogen or aluminium and ball or rod milling the product.  The alkali metal amide may be sodium, potassium or lithium amide. Polymerization may be effected in the presence of inert hydrocarbon solvents, e.g. hexane, heptane or octane, and the products treated with water, methanol and isopropanol.  The reaction mixture may be stirred by means of a magnetic stirrer.