baber/WOPTO huggingface dataset:
Patent GB-702057-A (GB)
Title: Improvements in and relating to hydrous silicate solids
Inventor: KALOUSEK GEORGE LAWRENCE
IPC: C04B28/18
Filed: 1950-10-18
Abstract: Shaped bodies consisting of crystals of the formula 5CaO.5SiO2H2O forming a microcrystalline network interspersed with voids, the aggregate volume of the voids exceeding that of the crystals, and suitable as insulation at high and low temperatures, and as strutural units, e.g. roof tiles, are produced by forming an intimate mixture of lime, silica and water, the amount of the latter being 4.5-0.75 times the weight of the solids, and the molar ratio CaO:SiO2 being aproximately 1:1, shaping the mixture, e.g. in pans or moulds, and subjecting the shaped mixture to a temperature and pressure in excess of 173 DEG C. and 125 p.s.i. respectively for a time of 24 hours or less depending on the temperature and pressure in excess of the specified figures, and finally drying.  For the production of low density products, say, up to 15 pounds per cubic foot, relatively large amounts of water are used, and in this case there is added to the reaction mixture an agent, e.g. spiculated asbestos, pulped paper, starch &c. retarding the settling of the crystals.  For higher density products less water is used, until for products with a density in exess of 45 pounds per cubic foot, the raw mix is a plastic paste.  Specification 646,820 is referred to.
Patent GB-1016219-A (GB)
Title: Epoxide resins
Inventor: GARNISH EDWARD WILLIAM
IPC: C08G59/10
Filed: 1963-06-26
Abstract: Epoxide resins are prepared by (a) reacting an aromatic mono- or poly-amine containing at least two amino hydrogen atoms with an epihalohydrin in the presence of a promoter containing hydroxyl groups and formed by the partial or complete reaction of a phenol or alcohol with an epihalohydrin, and (b) treating the resultant mixture with a quantity of alkali at least equivalent to the total amount of reacted epihalohydrin.  Products suitable for use as promoters include those containing unreacted phenolic or alcoholic hydroxyl groups from the starting material, those in which the halohydrin groups of the product have been partially connected to epoxide groups and those wherein all the hydroxyl groups of the starting material have reacted but no epoxy groups have been formed.  The epoxy groups, if any, in the promoter are formed by partial reaction with alkali. If the promoter is formed using excess epihalohydrin this excess may be used in reaction (a) above.  Solvents and catalysts may be present during the formation of the promoter and during reaction (a). The products may be hardened by the conventional agents.
Patent GB-481894-A (GB)
Title: Improvements in and relating to electron discharge devices and circuit arrangements incorporating the same
IPC: H01J21/02
Filed: 1936-09-18
Abstract: 481,894. Thermionic valves. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. Sept. 18, 1936, No. 25482. Convention date, Sept. 18, 1935. [Class 39 (i)] An electron - permeable anode comprises a plurality of parts between each pair of which a fixed potential difference is maintained and one part of each pair is connected to the anode bias. As shown, an anode A comprises a series of slats interleaved with a series of rods. Electrons penetrating the anode reach a collector P. When the anode voltage is high, electrons are but slightly deflected and reach P ; when it is low they are caught by the slats. The device thus exhibits negative resistance. The bias on the rods may be produced by a battery or by a dropping resistance. In a modification, a parallel resonance circuit is connected in the anode lead, and its full alternating voltage applied, with a negative bias from a battery, to the rods ; the slats receive the full anode bias and a tapping from the resonance circuit. A series of electrodes P, which may be out of phase with the anode A may be used. Valves with Lenard foil anodes are referred to.
Patent GB-1122497-A (GB)
Title: Cement compositions
IPC: C04B22/08
Filed: 1966-06-08
Abstract: 0.1 to 10% of calcium nitrite is added as an accelerator to Portland cement, either before grinding the clinker or to the cement powder. Calcium chloride can also be present.
Patent GB-375619-A (GB)
Title: Improvements in or relating to sand bunkers for foundries and the like
IPC: B22C5/14
Filed: 1931-09-12
Abstract: 375,619. Feeding-devices for granular &c. materials. POTTS, H. E., 12, Church Street, Liverpool.-(Badische Maschinenfabrik & Eisengiesserei vorm. G. Sebold und Sebold & Neff; 3, Seboldstrasse, Durlach, Baden, Germany.) Sept. 12, 1931, No. 25617. [Class 59.] Used foundry sand in a bin a is transferred to a conveyer band b by a rotary scraper or disc valve d which is traversed to and fro along the long side of the bin. The scraper is driven by an electric motor f, Fig. 2, through bevel gears e, shaft g, toothed gears h<1>, h,<11> and a friction coupling u to avoid damage. This device is mounted on a carriage which is driven from the same motor f through reversing bevels k, k<1>, clutch x, feathered to slide on a shaft y, and chain gearing l .. o. The position of the clutch is reversed at each end of the travel by a lever q engaging a fixed stop. The scraper shaft i is carried in bearings i<1> which can be adjusted about the axis g by a screwed spindle s and hand-wheel t, Fig. 1, to vary the depth of engagement of the scraper in the sand.
Patent GB-375148-A (GB)
Title: An improved device for tying skeins or hanks
IPC: B65H54/62
Filed: 1931-09-14
Abstract: 375,148. Knot-tying devices. VEDOVELLI, M., 4, Via Giulini, Milan, Italy. Sept. 14, 1931, No. 25707. Convention date, Sept. 12, 1930. [Class 112.] The tie-thread for hanks or skeins is inserted and knotted by a device comprising a support a head adjacent comb-teeth which penetrate the hank, the head carrying the knotting means, the device being compact and allowing hanks &c. to be knotted which are very close to each other on a reel. The lacing is effected by a guide &c. 27, Fig. 2, passing between the teeth 3, 3<1> the two.ends of the tie-thread being left projecting through a yoke 50, Figs. 2 and 6. A rod 38 with teeth 47 is then moved longitudinally and rotates a pinion 46 and toothed drum 44 engaging a pinion 43 on a sleeve 40 which thus turns about a pivot 30 containing a rod 32 with a rounded head 33 and an upper flat head 34 bearing on its upper face against a band 36 with a raised part 37, the band being on the rod 38 which has a handle or knob 39. The sleeve 40 has a cam groove 41 coacting with a stationary pin 42 and is formed with an arm 48 in which .is journalled the end 49 of the yoke 50 which carries a pinion 51 gearing in a fixed segment 52 coaxial with the sleeve 40. The sleeve 40 being rotated and moved axially causes the yoke 50 to rotate and tighten the tie-thread ends which are thus wound and traversed about the nose 31 of the pivot 30. Further movement of the rod 38 allows the rod 32 to be moved up against the raised part 37 of the band 36 by a spring 35, the head 33 thereby clamping the ends of the thread against the nose 31 whereupon a blade 53 cuts the thread. On withdrawing the device from the skein, the clamped end is pulled through the loop formed on the nose 31, thus tying the knot.
Patent GB-1345565-A (GB)
Title: Method and apparatus for the continuous casting of metal by the dip-forming process
IPC: C23C2/38
Filed: 1971-04-19
Abstract: 1345565 Casting composite rods KENNECOTT COPPER CORP 19 April 1971 [6 April 1970] 25766/71 Heading B3F [Also in Division C7] For continuous dip-casting on an elongate metal insert 1, the insert is passed into and through a bath of molten copper in a chamber in a crucible 60 through the lower portion of the crucible by way of a nozzle of which at least the end portion, e.g. of a bushing 54 in the nozzle, immediately surrounding the insert 1 where it enters the chamber, is made from a metal (such as Re, Re-Mo alloy containing at least 50% Re, W or Re-W alloy containing at least 75% W) which does not cold weld with the metal of the insert and which has a solubility in molten Cu of less than 250 parts per million. The melt may have the same composition as the insert 1. A rod is passed from a storage reel through a straightener, an electrolytic bath for cleaning and a rinsing or washing bath (the use of a shaving die is also said to be known in the art), before being dried in a neutral atmosphere and fed by rolls into an evacuated entrance chamber before entering the crucible in which the molten material, maintained from a furnace, may be contained in a separate liner. Emerging from the melt with a cast coating, the rod is cooled by sprays and surface irregularities are corrected by sizing rolls. It passes through a cooling duct or conveyer to drawing or rolling equipment for reduction and then accumulates on a reel. Subsequent coated rod may be fed to another storage means for further fabrication or packaging. The accumulated rod may be fed to the original reel for re-cycling. As shown the nozzle bushing 54 is screwed into a bushing 50, e.g. of Cu, surrounded by a cooling coil 59. In other embodiments there is a greater clearance between the rod (1) and the nozzle and the latter terminates in the bottom of a crucible liner.
Patent GB-475687-A (GB)
Title: Improvements in and relating to ammeters for high frequency alternating currents
IPC: G01R19/22
Filed: 1936-09-22
Abstract: 475,687. Current and volt meters. SHEVLIN, J. T. (Siemens & Halske Akt.- Ges.) Sept. 22, 1936, No. 25768. [Class 37] High-frequency currents are measured on a continuous-current instrument 6 connected to a series chain of static contact rectifiers 8, the resultant capacity of the rectifier chain having substantially no effect upon the measured quantity. Each of the rectifiers has a small contact surface area. The rectifiers are in the secondary circuit 5 of an iron-core transformer of which the bar 2 forms the primary. A capacitance 7 is connected in parallel with the instrument to byepass any A.C. component from the rectifiers. The core of the transformer may be without iron.
Patent GB-1244771-A (GB)
Title: Hydraulic dual-circuit brake system, especially for motor vehicles
IPC: B60T11/24
Filed: 1969-05-21
Abstract: 1,244,771. Hydraulic dual braking systems. DR. HERMANN E. MULLER. 21 May, 1969 [11 June, 1968], No. 25808/69. Heading F2F. In an hydraulic dual braking system for a vehicle in which a piston 8 or bellows 80, Fig. 2 (not shown), actuated through a pneumatically operated piston 6 pressurizes a chamber 10, two coaxial bellows 11, 12 are provided in the chamber and are attached to a pressure plate 13 forming with it two further chambers 15, 16 which communicate through ports 17, 18 and conduits 170, 171, 172, 173, 174 and 180, 181, 182, 183, 184 respectively with chambers 201, 221 of brake units 19 and also via branch conduits 175, 185 with two feed-back cylinders 31, 32, whereby on loss of pressure in either of conduits 170, 180 the brakes are still actuated by virtue of the pressure in the functioning conduit 170 or 180 and loss of braking power is transmitted through either cylinders 31 or 32 to the brake pedal, so that the driver can "feel" when the brakes are not functioning properly. Each brake unit 19 has two bellows 21, 22 separated by a plate 23 attached to a rod 26 actuating discs 28 through an opening 27 which may have a ball bearing through which rod 26 may be guided. The feed-back cylinder 31 or 32 each has a single bellows 35 or 36 attached to pressure plate 37 or 38 which is coupled through rods 47, 48 to a joint 49 on the brake lever 2.
Patent GB-861961-A (GB)
Title: New diols and their method of preparation
Filed: 1957-08-16
Abstract: The invention comprises diols having the general formula HO(CH2CH2O)xCH2C(R6)(R7) CH2(OCH2CH2)yOH wherein x is O or an integer, y is an integer, x+y does not exceed 5 and R6 and R7 are alkyl groups, and preferably R6 is methyl or ethyl and R7 is a C1-4 alkyl group.  The compounds may be prepared by reacting one or more corresponding diols HOCH2C(R6)(R7)CH2OH with up to 5 mols. of ethylene oxide per mol. of starting diol.  The oxyethylene diols are useful in the preparation of components of plasticizers and lubricants in which connection reference is made to Specifications 861,962, 861,963, 861,964 and 861,965.  In an example, 4 mols. of neopentyl glycol are reacted with 7 mols. of ethylene oxide in the presence of ZnCl2 as catalyst at 160 DEG C.; the product is distilled and a fraction of oxyethylene diols of M.W. 180 is collected, corresponding to compounds of the above general formula wherein R6 and R7 represent methyl groups and x+y=about 1.7; the product is further distilled to obtain a fraction corresponding to a compound wherein R6 and R7 are methyl groups, x=0 and y=1.  In the Provisional Specification no upper limit is placed on the sum x+y.
Patent GB-187814-A (GB)
Title: Improvements in the synchronisation of clocks
IPC: G04C13/02
Filed: 1921-09-30
Abstract: 187,814. Shortt, W. H. Sept. 30, 1921. Synchronizing.-A pendulum clock is synchronized with another by means of the usual electric impulses which are utilized to operate a device associated with the slave pendulum immediately this pendulum lags in phase beyond a predetermined amount. In Fig. 1 the synchronized or slave pendulum D is given a losing rate and is provided with a spring-controlled lever L pivoted thereto. At a periodic impulse the armature A of an electromagnet M engages and holds the lever L (if the phase of the slave pendulum lags behind the primary pendulum) during the remainder of the swing of the pendulum to the left, and the pendulum is on its return swing accelerated by means of the spring-controlled lever L by an amount greater than that by which it previously lagged. During subsequent swings the armature will not engage the lever L if the phase of the pendulum is ahead of that of the primary pendulum, that is if the lever has passed the end of the armature at the moment of periodic impulse. Fig. 3 shows an arrangement whereby the lever L is engaged by the armature on several successive swings so that the acceleration is gradual. When the armature A is raised by the electromagnet M an armature lever V moves below it and keeps it elevated, the lever V being retracted one or more half-periods before the next impulse to the electro-magnet M by the energizing of electromagnet N through contacts made by the slave pendulum and so allowing the armature A to fall ready for the next periodic impulse. If desired the slave pendulum D may be given a gaining rate, in which case the spring S is replaced by a weight on the lever L. The engagement of the lever therefore, in effect, removes weight from the pendulum and retardation takes place.
Patent GB-1007036-A (GB)
Title: Improvements in or relating to sand-based plaster mixes
IPC: C04B28/14
Filed: 1962-07-06
Abstract: A plaster mix comprising burnt gypsum, sand or other inorganic fillers, a water-soluble cellulose derivative or similar organic binder and water is hermetically enclosed in a container, the proportions of the ingredients being such that the mix is able to set hard in the container and when removed may be restored to a plastic consistency without the addition of water by kneading. Retarders, e.g. glue, dextrin, sugar or borax, and/or bentonite and/or emulsions of water insoluble resins may also be present. Fillers specified are pumice, limestone and chalk.
Patent GB-482307-A (GB)
Title: Improvements in or relating to alkali silicate cements and articles bonded by such cements
IPC: C04B28/26
Filed: 1936-09-28
Abstract: A cement comprises an alkali silicate, magnesia and amorphous silica, e.g. diatomaceous earth, silica gel, or geyserite.  Zinc oxide and an inert filler, such as crystalline silica or flint, may be added.  The modifying ingredients may be mixed dry, and then added to a solution of the silicate, or they may be mixed with the powdered dry silicate. The cement may be used for bonding abrasive grains such as fused alumina or silicon carbide, or for bonding such articles as bricks or the segments of pulp wheels.  When abrasive articles are to be made, the mix, after forming into the desired shape, is allowed to dry at room temperature for a short time and is then baked.  Specifications 19297/05, 268,851, [both in Class 70], and 482,308 are referred to.
Patent GB-881562-A (GB)
Title: Improvements in and relating to nuclear reactors
Inventor: ARMS HENRY SHULL
IPC: G21C5/10
Filed: 1957-08-20
Abstract: 881,562. Trusses. ENGLISH ELECTRIC CO. Ltd., and BABCOCK & WILCOX Ltd. Aug. 19, 1958 [Aug. 20, 1957], No. 26329/57. Class 20(2) [Also in Group XL(a)] A support for a nuclear reactor core inside a pressure vessel comprises a grid of interconnected cross members 16, 17 and an openwork assembly supporting the grid. Fig. 1 shows a supporting assembling of tubes which form, with the grid, two sets of inverted trusses 18, 19 each of which consists of a main span member 18a, 19a and uprights 18b, 19b; the outer ends of the main span members and the upper ends of the uprights are welded to loading plates 20. The trusses and the pressure vessel are supported by a skirt 13.
Patent GB-1186556-A (GB)
Title: Apparatus for Generating Synchronised Timing Pulsey in a Receiver of a Synchronous Digital Communications System
IPC: H04L7/033
Filed: 1967-06-07
Abstract: 1,186,556. Automatic phase control systems. HASLER A.G. 7 June, 1967 [8 June, 1966], No. 26369/67. Heading H3A. A telegraphy system wherein the output of divider 8 fed from a local oscillator 7 is synchronized with pulses D (derived from the receiver input A via a differentiator 1, rectifier 2 and monostable circuit 3) by means of AND gates 5 and 6 opened by pulses F and G occurring over different parts of the cycle of oscillator 7, is characterized by the provision of a bi-stable circuit 10 which prevents synchronization at 180 degrees phase error. If a D pulse coincides with an F pulse or a G pulse, an output I or J is fed to a reversible counter 9 to step it forward or backward respectively. When the counter 9 reaches a limit in either direction it produces an output on line K or L which adds or blocks a pulse in divider 8 and also re-sets the counter 9 to a central state through OR gate 12 and delay unit 11. The D pulses are inverted at 4 and fed to the 0 input of bi-stable 10, the 0 output of which is an input to AND gate 6; the effect of the connections shown is that if a D pulse overlaps G and F pulses, which are contiguous, only the first coincidence is effective and the system is not stable. The system is stabilized when the D pulses occur in the intervals between F pulses and succeeding G pulses.
Patent GB-1173708-A (GB)
Title: A Tow Bar for Trailer Vehicles.
Inventor: RICKARDSSON ERIK GEORG
IPC: B60D1/167
Filed: 1968-06-04
Abstract: 1,173,708. Draw-bars. E. G. RICKARDSSON. 4 June, 1968 [2 June, 1967], No. 26441/68. Heading B7T. A draw-bar comprises two beams 1 connected between their ends by a -bolted cross-bar 8 and at adjacent ends, to form a V-shape, by a pair of flanged members 5, each member being welded to a respective beam and of semicylindrical configuration to form a sleeve which encloses a draw-ring bolt 4, the members 5 being detachably connected by bolts. The bolt is prevented from being withdrawn from the sleeve by a nut 11.
Patent GB-600381-A (GB)
Title: Improvements in or relating to a lifting apparatus
IPC: E02B17/08
Filed: 1945-10-12
Abstract: 600,381. Lifting-apparatus. LAFFAILLE, B. Oct. 12, 1945, Nos. 26694 and 26695. Convention dates, Oct. 24, 1944, and Feb. 26, 1945. [Class 78 (iii)] Lifting-apparatus for heavy loads comprises a fixed column 1 having ratchet teeth 2, plates 3, 4 connected by a sleeve 5, the lower plate 3 being secured to the load 14 to be raised, a plate 6 slidable along the sleeve 5 between the upper and lower plates 3, 4, lifting jacks 12 mounted on the plate 6, locking fingers 7, 8 carried by the plates 3, 6 respectively and engaging the teeth 2 under the action of springs 9, and return springs 13 placed between the plates 3, 6. On operating the jacks 12, the plate 4 is raised and through the medium of sleeve 5 and plate 3, carries with it the load 14. The locking fingers 7 on the plate 3 prevent downward movement. The jacks are then brought back to the starting position and during their retraction the springs 13 raise the plate 6 and the operation is repeated. In a modification shown in Fig. 9, there is only one lifting jack 121 which rests on the central column 1<1>. The jack thrusts a plate 4<1> upwards and causes the raising of the load through the medium of lateral racks 18 and locking fingers 8<1> carried by a plate 6<1> which is integral with a lower plate 31 carrying the load.
Patent GB-1211246-A (GB)
Title: Method for producing citric acid by fermentation
IPC: C12P7/48
Filed: 1968-06-05
Abstract: 1,211,246. Preparation of citric acid by fermentation. TAKEDA YAKUHIN KOGYO K.K. 5 June, 1968 [7 June, 1967], No. 26694/68. Heading C2C. Citric acid is prepared by inoculating a citric acid-accumulating and hydrocarbonassimilating strain of a yeast belonging to the genus Candida in an aqueous culture medium containing at least one normal paraffin with from 9 to 20 carbon atoms, incubating the culture at a pH of from 4 to 7À5 until citric acid is substantially accumulated in the culture broth and recovering the citric acid therefrom. Nitrogen sources i.e. inorganic and organic nitrogen compounds are present in the medium and inorganic salts may also be present. The incubation is carried out at between 15‹ and 40‹ C. In examples the cultures used are Candida lipolytica, C. tropicalis, C. intermedia, C. parapsilosis, and C. guilliermondii.
Patent GB-1267714-A (GB)
Title: Animal feeds
IPC: A23K50/15
Filed: 1969-05-27
Abstract: 1,267,714. Ruminant feed. MITSUBISHI CHEMICAL INDUSTRIES Ltd. 27 May, 1969 [8 June, 1968; 8 April, 1969], No. 26786/69. Heading A2B. A ruminant feed composition comprises a C 2-4  aldehyde-urea condensate as protein source. Also present may be a calcium salt. for example the carbonate, and salt. The feed may comprise cereal or grain products, cottonseed meal, soy bean meal, coconut oil meal, fish meal, starch pulp, molasses, rice or millet.
Patent GB-1318176-A (GB)
Title: Control device for change-speed gears and the like for bicycles
IPC: B62M25/04
Filed: 1971-04-19
Abstract: 1318176 Cycle control mechanisms T CAMPAGNOLO 19 April 1971 [13 April 1970] 26802/71 Heading B7E A cycle gear change device comprises a cylindrical housing 2 having a clip 3 for motmting the device on a cycle frame connected therewith by bolts 4 which also retain a plate 5 rigid with the housing, the plate having extending therefrom a pin 6 on which are pivotally mounted a control lever 8 and cover 7 riveted together at 13, the rivet being slit to retain the head end 14 of a control cable 15 and the plate 5 being provided with an end stop 17 for the cable sheath 16 and further stops 18, 19, to limit the range of rotation of the lever 8. The lever 8 and cover 7 are secured on the pin 6 by nut 10, and spring washer 11. An arrow 20 co-operates with marks on the housing 2 to indicate the gear selected.