baber/WOPTO huggingface dataset:
Patent GB-550588-A (GB)
Title: Improvements in and relating to hydraulically operated retractable gun mountings or turrets and hydraulic systems therefor
IPC: F41A27/26
Filed: 1940-11-23
Abstract: 550,588. Aircraft gun mountings. NASH, A. G. FRAZER-. Nov. 23, 1940. No. 16840. [Class 92 (i)] Relates to a hydraulically-operated gun mounting or turrets for aircraft of the kind having valve mechanism for controlling the extension from or retraction into the fuselage of the turret and the training and elevation of the guns when the turret is extended for action. According to the invention, a shunt valve is provided having a movable element separate from the elevating and training control valves and controlled by means fixed to the fuselage whereby, when the guns are in the position in which retraction or extesion of the turret is permissible, the shunt valve is caused to interrupt the supply to the elevating and training means and to supply pressure to the retraction or extension means. An emergency change-over valve also is provided whereby a hand-pump can be operated to effect retraction of the turret if the supply pressure fails. In the form shown, the turret comprises a lower portion A, Fig. 1, rotatable for training with respect to a superstructure 16, the whole being slidable downwardly by hydraulic jacks for extending the turret below the aircraft and upwardly for housing the turret within the fuselage. The jacks are controlled by a valve D, the supply of pressure being under the control of a shunt valve 1 which also admits pressure through an axial distributer to the hydraulic system serving to elevate and train the guns in known manner. When the turret is extended, the shunt valve is spring-pressed to a position permitting of gun elevation and training being unlocked by the engagement of a lever 25 with a fixed cam but the shunt valve can only be moved to position for feeding the retraction valve D when the guns occupy a definite position in training with a roller 14 opposite to a gap 17. The shunt valve is moved by a handle 12 which is unlocked by a Bowdenoperated pin 8 actuated by contacts 3, 5 when the gun is stowed in elevation. The handle 12 then moves the roller through the gap and actuates an arm 22 on a telescopic rod which operates the shunt valve. The hydraulic circuit for controlling the turrets and guns is shown in Figs. 5 and 6 and includes a pump 34, recuperator 35, balancer 68, elevation rams 80, training motor 79, master valve 75, elevating and training control valves 78, 79 and an axial distributer 41 as previously employed. The present invention requires the addition of the shunt valve 39 which feeds the turret extension and retraction valve 43 or the distributer 41 according to the adjustment of the shunt valve. If the power fails when the turret occupies the extended position, a change-over valve 63 is operated and a hand-pump 72 is brought into operation to build up pressure supply to the jacks 65 to raise the turret.
Patent GB-278431-A (GB)
Title: Improvements in or relating to lens systems
IPC: G02B23/00
Filed: 1926-07-06
Abstract: 278,431. Booth, L. B. July 6, 1926. Telescope systems. - Comprises erecting systems for telescopes, more particularly telescopes in which it is desired to obtain accurate register of two graticules over the whole of a wide angle field of view. The erecting systems are designed to correct the curvature and astigmation of the field produced by the objective, and consist of one or two diverging lenses L5 situated between two converging lenses L4, L6 or of one or two converging lenses situated between two diverging lenses. Some or all of the lenses may be cemented doublets. This system is situated between the objective O and the eyepiece E. In orser to increase the angle of view a reversed Galilean system L11, L12 may be placed in front of the objective, the system being out of telescopic adjustment. Complete numerical data are given of the form shown in Fig. 2. Specification 228,640 is referred to.
Patent GB-778982-A (GB)
Title: Improvements in or relating to the purification of concentrates containing vitamins of the b group
IPC: A61K31/00
Filed: 1955-06-13
Abstract: Liquid concentrates of vitamins of the B12 group are purified in a continuous process working on the countercurrent principle, and consisting of four operating stages successively merging into one another, by extracting said vitamins in a first operating stage with a solution of a halogenated phenol immersible with water, e.g. p-chlorophenol, in a solvent, e.g. hydrocarbons, halogenated hydrocarbons, carbon disulphide or mixtures thereof, washing the resulting organic phase in a second operating stage with buffer solutions having a pH range of 2.0 to 8.5 and with distilled water, converting said vitamins in a third operating stage from the organic phase into an aqueous phase by the addition of an oxygen-containing polar substance, e.g. acetone, methyl ethyl ketone, diethyl ether, dioxane, ethyl acetate, isopropanol, butanol, amyl alcohol or benzyl alcohol, and washing the aqueous solution of the said vitamins with a suitable organic solvent immiscible with water, e.g. benzene, trichlorobenzene or carbon tetrachloride, in a fourth operating stage.  Purification may be effected in single-stage or multi-stage extraction centrifuges. Examples describe the preparation of a purified aqueous Vitamin B12 extract from digested sludge and from a Streptomyces fermentation.
Patent GB-573518-A (GB)
Title: A method of and apparatus for bonding materials electrically
IPC: B29C65/00
Filed: 1943-10-15
Abstract: 573,518. Seaming non-metallic sheet materials. RADIO CORPORATION OF AMERICA. Oct. 15, 1943, No. 16972. Convention date, Feb. 27. [Class 42 (i) ] [Also in Group XI] Two or more contacting dielectric parts A, B are bonded together by a method which comprises interposing the parts between a pair of electrically conductive rollers 45, 55 of sufficient mass and heat conductive properties for withdrawing effectively heat from the surfaces in contact therewith, applying high frequency electrical energy to the rollers and causing them to rotate so to extract heat from the outer surfaces of the parts to be bonded while permitting the inner surfaces of the parts to become sufficiently heated by the dielectric losses therein to bond the parts together. The high-frequency electric current is supplied from an oscillation generator 7 through a concentric cable 69, 71 to the two electrode rollers 45, 55 between which the work A, B is fed above a table 3. The roller 45, which is driven from the motor 11 through belt, spur, worm and adjustable frictiondisc gearing, may be carried adjustably on a pivoted frame. The roller 55 is urged downwardly, with the frame 51, by a spring 61 adjustable at 67. The roller 55 may be formed hollow and supplied with cooling fluid under pressure. A foot switch 75 energises both the motor 11 and generator 7, the output of the latter being varied by adjustments 7a, 7b. Separate feed rollers for the work may be used and preheating of the work between plate electrodes may be provided for. The roller 55 may be replaced by an endless belt of conducting material. Non-thermoplastic fabrics may be joined by feeding sheets of thermoplastic material, or by feeding a liquid binder of the thermosetting type, therebetween. The bonding between the strips A and B &c. may be continuous or discontinuous. Specification 565,592 is referred to.
Patent GB-459770-A (GB)
Title: Manufacture of 1:4:5-tribenzoylamino-8-oxyanthraquinone
IPC: C09B1/516
Filed: 1936-06-18
Abstract: Anthraquinone dyes; regenerated celluloses, dyeing; vat dyes, dyeing with.--1 : 4 : 5-Tribenzoylamino - 8 - oxyanthraquinone is manufactured by treating 1 : 4 : 5-triamino-8-oxyanthraquinone with a benzoylating agent, e.g. benzoyl chloride or bromide or benzoic anhydride, preferably in the presence of a solvent or a suspension agent, e.g. nitrobenzene, naphthalene or trichlorobenzene. Alternatively, a 1 : 4 : 5 - aminonitro - 8 - oxyanthraquinone, e.g. 1 - amino - 4 : 5 - dinitro - 8 - oxyanthraquinone, is treated with a benzoylating agent, the nitro group or groups are reduced, preferably with alkali sulphide, and the product is treated with a benzoylating agent. The product may be purified by crystallization, by conversion into its salts with strong acids or by cautious treatment with an oxidizing agent, e.g. alkali hypochlorite solution, and may be converted into its leuco-derivatives, e.g. the leuco-sulphuric ester. It is a blue-dyeing dyestuff suitable for dyeing and printing vegetable fibres, e.g. cotton and artificial silk from regenerated cellulose, as a pigment, e.g. in lithographic printing, or for colouring lacquers and plastic masses.  In examples: (1) 1 : 4 : 5-triamino - 8 - oxyanthraquinone, suspended in nitrobenzene, is treated at 150--160 DEG  C. with benzoyl chloride, benzoyl bromide or benzoic anhydride; (2) material is dyed with the product of (1) from an alkaline hydrosulphite vat; (3) the product of (1) is made up into an aqueous paste with aluminium sulphate and sodium carbonate, ground with varnish and the mass is used for lithographic printing. Specification 2702/09, [Class 2 (iii)], is referred to.  1 - Amino-4 : 5 - dinitro - 8 - oxyanthraquinone is obtained by treating 1-amino-8-chloranthraquinone with hot methyl alcoholic caustic alkali to produce the 8-methoxy compound, converting this into its oxalyl derivative by fusion with oxalic acid, nitrating in the cold and then removing the oxalyl residue by treatment with an alkaline agent, e.g. sodium carbonate, and saponifying the methoxy group by means of hot sulphuric acid.
Patent GB-425596-A (GB)
Title: Method of plating and bonding
Filed: 1933-06-15
Abstract: Ferrous metal articles, e.g. motor mountings, are coated with brass or other copper alloy by dipping and rubber is then bonded to the coated metal by applying a strip or sheet of unvulcanized rubber, with or without the use of a rubber cement, and subjecting the rubber to vulcanizing heat and pressure.  Either before or after or both before and after the immersion of the ferrous metal article in the molten brass, &c., it is immersed in a bath of hot flux, e.g. molten boracic acid, having a temperature approximately equal to that of the coating metal.  Any flux coating on the metal-coated article is removed either by chemical means, e.g. with hot water or acid, or mechanically by treatment with a steel brush prior to the bonding with rubber.
Patent GB-1467445-A (GB)
Title: Main links for chain or wire rope slings
IPC: F16G13/00
Filed: 1974-04-09
Abstract: 1467445 Chains PARSONS CONTROLS Ltd 9 April 1974 [10 April 1973] 17096/73 Heading F2Q A main link for a chain or wire rope sling is of generally oval shape and comprises crowns 1, 3 which are connected by straight sides 5, 7, the crowns 1, 3 being of unitary construction and the cross-section of each crown is a maximum at its centre and decreases towards the sides 5, 7, the latter being of uniform section throughout their length.
Patent GB-131503-A (GB)
Title: Improvements in Measuring and Marking Mechanism for Tape Sizing and other Machines.
IPC: D06H1/02
Filed: 1918-10-19
Abstract: 131,503. Butterworth & Dickinson, and Prior, A. Oct. 19, 1918. Yarns, marking and measuring. - Relates to measuring and marking mechanism of tape-sizing machines of the type in which two catch levers engage alternately a catch-wheel on the shaft which actuates the hammer and positions the reversing-pinion, and consists .in providing the shaft with a positive drive each time it is released by a catch-lever, until it is again brought to rest, a turning or starting effort being exerted on the shaft for this purpose before it is stopped, which acts to engage the positive drive on release. The drive is obtained from the sheeting roller D or other convenient source through a chain-gear connexion d to a ratchet-wheel d<1> loose on the shaft A<3>, to which is rigidly fixed a double cam E carrying two spring-pressed pawls e, c' normally held from the ratchet by a fixed shield F. A spring presser-bowl E<1> in the resting position tends to turn the cam counter-clockwise, and does so when one of the catch-levers A, A<1> releases the shaft A<3>. The pawl e at once engages the ratchetwheel, and the shaft A is driven until the pawl is again disengaged by the sheet F. The timing is so arranged that just as the cam has pressed its bowl to the extreme position, the marking- hammer drops and the pawl is disengaged. The small rotation necessary to bring the catch-wheel into contact with a catch-lever is then given by the presence of the bowl on the cam, which is then held in mid-position until again released to repeat the engagement.
Patent GB-776707-A (GB)
Title: Improvements in or relating to devices for playing gramophone records
IPC: G11B3/085
Filed: 1955-06-15
Abstract: 776,707. Phonographs. PHILIPS ELECTRICAL INDUSTRIES, Ltd. June 15, 1955 [June 18, 1954], No. 17237/55. Class 40 (2). Rotation of a horizontal cylinder 19 having peripheral cam grooves effects and controls the lifting of a pick-up 1 from the centre of a disc record, not shown, that has been played, the swinging of the pick-up across the record to permit the feeding of the next record to the turntable, not shown, and the return swing and lowering of the pick-up to the rim of such next record irrespective of its diameter. Considering the pick-up to be at the centre of the last record played, upon said rotation, a follower 21 in one cylinder groove lifts a raising device 20 and hence a member 22-and a brace 4, whereupon a pin 5 pivots the pick-up about a pin 2 to raise it clear of the record. Between the brace 4 and a plate 14 is friction material, not shown, and on lifting of the brace 4 a follower 15 on the plate 14 engages another cylinder groove which through these components and the pick-up vertical shaft 3 swings the pick-up across, clear of the record. After the next record has been fed to the turntable by unspecified means the pick-up swings back until a stop 12 or 13 of an extension 11 of the brace strikes a stop 10 or a stud 9 depending on the diameter of the said next record. The friction clutch permits the brace to stop at this position, and follower 21 drops to engage the pick-up with the record rim.
Patent GB-385300-A (GB)
Title: Improvements in or relating to apparatus for use in the fire control of anti-aircraft guns
IPC: F41G5/08
Filed: 1931-06-13
Abstract: 385,300. Anti-aircraft gunnery. VICKERS-ARMSTRONGS, Ltd., WATSON, J. P., and PARKER, S., Vickers House, Broadway, Westminster. June 13, 1931, No. 17252. [Class 92 (ii).] Relates to anti-aircraft fire-control apparatus using a director sight the movements of which in elevation and azimuth are conveyed to a calculator for obtaining the laying data, means being also provided for determining the vertical and lateral parallax angles due to the displacement of the controlling sight from the gun station, and for incorporating such angles in the elevating and training angles conveyed to the calculator by the director sight in order to obtain the corresponding angles at the gun station. According to the invention, the means for incorporating the parallax corrections comprises (a) a disc E, which is rotated through the angle # between the line of sight and the line of length L from the controlling sight to the gun station, and which carries a crank pin x, the throw of which is adjusted to suit L/H where H is the height of target, the pin controlling two sliders J, K moving at right-angles to one another, (b) a mechanism such as a hinged rod J<1> which combines the movement of slider J with a function (sin<2>alpha) of the elevation angle alpha of the controlling sight A to move a member J<3> in accordance with the vertical parallax angle # given by the formula L cos#sin<2>alpha/H(c) means, such as a differential gear C, for obtaining the angle (alpha Œ #) for setting into the calculator by a shaft C<1>, (d) a mechanism, such as a pivoted rod K<1>, for combining the movement of the slider K with the function tan (alpha Œ #) to move a slider M<3> in accordance with the lateral parallax angle given by the formula L sin#.tan(alpha+#),/H and (e) means, such as a differential gear N, for combining the lateral parallax angle with the angle of training of the controlling sight A to set the resultant into the calculator bv a shaft N<1>. In the apparatus shown, the crank throw L/H is adjusted by a screwed shaft G<1>, a pointer G on which is set to height curves on a drum F rotated by a knob F<1> in accordance with values of L shown on a dial F<2>. The movements of the sliders J<3>, M<3> are reproduced at the differential gears C, N by "follow the pointer" devices J<4>, M<4> operated by handwheels J<6>, M<6>. In a modification, the " follow the pointer devices are dispensed with, the sight A being offset by the amount of the correction and the hand gears which, through differential gears, restore the sight on the target, serving to impart the corrections to the calculator.
Patent GB-356791-A (GB)
Title: Improvements in and relating to the preparation of bread and the like for wrapping
IPC: A21D15/00
Filed: 1930-06-05
Abstract: 356,791. Preparing bread for wrapping; doors. AUTOMATIC BREAD BAKING CO., Ltd., 115, Pitt Street, Sydney, HAWKINS, F., Nathan Street, Coogee, and MULLER, W., 15, Stanley Street, Enfield, both near Sydney, Australia. June 5, 1930, No. 17347. Convention date, June 6, 1929. [Class 34 (ii).] Freshly baked bread in bulk is prepared for wrapping, by withdrawal of superfluous moisture in vacuo. The loaves are loaded on to vertically adjustable wire shelves on wheeled trucks which are passed into -a cylindrical container 9 connected through a condenser 37 to a vacuum pump. The doors 12 of the container are hinged on pins 19 by means of angle-bars 17 having slots 18 for the pins, and are made airtight on closing by the action of lever fastenings 15 pressing rubber strips 22 on the doors against ribs 25. Subsequently the fastenings 15 drop, and the doors are held tight by the vacuum alone. The container has a floor of slats to facilitate drainage at 28, and, at the top, an absorbent moisture-screen. A pressure relief valve 35, and gauges 34, 39, are provided. The Specification as open to inspection under Sect. 91 (3) (a) refers to the use of a steam or water ejector in lieu of a pump. This reference does not appear in the Specification as accepted.
Patent GB-1038353-A (GB)
Title: Light weight hosing
Inventor: BENSON GERALD BERNARD
IPC: F16L11/112
Filed: 1964-04-27
Abstract: 1,038,353. Flexible hoses. WILLIAM WARNE & CO. Ltd. May 26, 1965 [April 27, 1964], No. 17394/64. Heading F2P. A lightweight hose comprises one or more plies of fabric material 1 supported on an inner helix of metal or plastic and located thereon by an outer U-section helix 3 of rubber or plastic applied to be coincident with the inner helix. In a further embodiment, Fig. 2 (not shown), a thermal insulating material 7, such as expanded polyurethane or glass fibre, is sandwiched between inner and outer plies of fabric material forming the hose wall. The fabric plies, preferably of cotton, may be impregnated or coated to render them impervious to moisture. Applications mentioned are ventilation and airconditioning ducts, particularly for aircraft.
Patent GB-940180-A (GB)
Title: Process for the polymerization of 1,3-dienes and mixtures of ethylene and propylene
IPC: C08F136/04
Filed: 1962-05-07
Abstract: 940,180. Polymerizing olefins and apparatus therefor. POLYMER CORPORATION Ltd. May 7, 1962 [May 8, 1961], No. 17488/62. Heading C3P. Polymers of olefinic hydrocarbons are made by polymerizing one or more hydrocarbons in an organic solvent solution, in the presence of a catalyst, preferably a stereospecific catalyst, by effecting the polymerization in a reaction zone at least partially enclosed by a cooled surface, and effecting disturbance of the reaction mixture immediately adjacent a major proportion of the cooled surface, i.e. right up to the surface itself, to minimise the formation of a stagnant layer upon the cooled surface. The disturbance of the reaction mixture may be effected by scraping the cooled surface with metal or plastic blades. The olefinic hydrocarbon may be ethylene, propylene, butylene, butadiene, isoprene, styrene, or mixtures. The organic solvent may be butane, pentane, hexane, butene-1, butene-2, benzene, toluene, or chlorobenzene. The catalyst may be sodium butyl, lithium butyl amyl sodium, amyl lithium, benzyl sodium, tolyl potassium, naphthyl lithium, or a mixture of an organometallic compound of Group I, II, and III of the Periodic Table, and a transition metal compound of Group IV B , V B , VIB and VIII of the Period Table shown in the Handbook of Chemistry and Physics, 42nd Edition, 1960-61, pages 448-9. The catalyst exemplified is a mixture of TiI 4 , Al(C 2 H 5 ) 3  and di-isopropyl ether. The process is generally effected continuously. In the preferred method of carrying out the process as shown in the Figure, a homogeneous mixture of monomer, organic solvent and catalyst are withdrawn from vessel 1 by way of line 7 and fed to reactor 8. Reactor 8 comprises a casing 9, which is enclosed by a cooling jacket 10, and a hollow draft tube 12 through which a coolant is circulated via cooling jacket 10. The reaction mixture in reactor 8, is caused to move downwards within draft tube 12, by means of an auger 13 carried by shaft 14. The edges of auger 13 are close to the inner wall of the draft tube 12, but are not in contact with it. The reaction mixture is continuously circulated downwards through the interior of the draft tube and upwards through the annular space between the outer wall of the draft tube and the inner wall of the casing. The scraping of the cooled surface is effected by arms 18 extending at right angles to shaft 14, which each carry an arm 19 extending downwards into the annular space between the outer wall of the draft tube and the inner wall of the casing, and to which are attached scraper blades 20, and 21. Additional scraper blades 24, are arranged between the flights of auger 13, and carried by arms 25. Continuous withdrawal of the polymerizate is effected through pipe 27. U.S.A. Specification 2,953,555 is referred to.
Patent GB-1413672-A (GB)
Title: Transmission gearing
IPC: F16H1/14
Filed: 1972-04-17
Abstract: 1413672 Change speed gear ROTARY HOES Ltd 16 April 1973 [17 April 1972] 17548/72 Heading F2D A transmission gear, for driving the transverse tool shaft of a tractor-towed rotary cultivator from the longitudinally extending power take off of the tractor, comprises unequal (1 to 2) bevels 14, 24 on shafts 13, 23, the latter of which extends in both directions from the gear housing 10, and the latter, 10, can be mounted in alternative positions on the cultivator, whereby either end of the shaft 23, or the shaft 13, may act alternatively as driving or driven members to provide two output speeds in opposite directions.
Patent GB-954078-A (GB)
Title: Polymerising alpha-olefins
IPC: C08F10/00
Filed: 1961-05-15
Abstract: An a -olefin is polymerized by passage into a fluidised bed in the gaseous state at a linear flowrate of between 0.05 and 0.8 metres/sec.  The polymerization may be effected in the presence of a stereospecific catalyst formed from a transition metal compound and an organo-aluminium compound on a cylindrical fluidised bed having a height: diameter ratio between 1:1 and 5:1. The olefin may be polymerized continuously or batchwise, unreacted gas being cooled and recycled.  The catalyst may be TiCl3 and an aluminium trialkyl. Examples describe the polymerization conditions with reference to propylene.  Specification 904,853 is referred to.