baber/WOPTO huggingface dataset:
Patent GB-624458-A (GB)
Title: Method of producing zirconium hydride
IPC: C01B6/02
Filed: 1946-11-05
Abstract: Zirconium hydride is prepared by mixing zirconium oxide with excess of metallic magnesium, placing the charge in a closed retort, evacuating air from the retort and from the charge and replacing it with hydrogen, thereafter gradually heating the charge to reduce the zirconium oxide particles to hydride, withdrawing the hydrogen gas from the retort and establishing a vacuum, continuing the heating until magnesium is evaporated from the charge, re-admitting hydrogen into the retort and cooling the charge in a hydrogen atmosphere.  The charge may be heated in the initial heating step to 600 DEG  C., the heating being continued gradually until the temperature reaches at least 900 DEG  C.; and the hydrogen pressure in this step may be 15 lbs. per square inch.ALSO:Metallic zirconium is prepared by mixing zirconium oxide with excess of metallic magnesium, placing the charge in a closed retort, evacuating the air from the retort and from the charge and replacing it by hydrogen, thereafter gradually heating the charge to reduce the zirconium oxide particles to hydride, withdrawing the hydrogen gas from the retort and establishing a vacuum, continuing the heating until magnesium and hydrogen are removed from the charge and cooling the charge in a vacuum.
Patent GB-646048-A (GB)
Title: Dialkylaminoalkyl ethers of certain polynuclear compounds
IPC: C07D311/86
Filed: 1947-12-15
Abstract: Amino - ethers of the general formula A-O-CHn2nNRR1, wherein A represents the benzohydryl or 9-fluoryl radical or the radical <FORM:0646048/IV (b)/1> in which X is a sulphur or oxygen atom or the methylene group, n is 2 or 3, and R and R1 each represent an unsubstituted alkyl group containing not more than 4 carbon atoms, are prepared by heating the corresponding polynuclear alcohol with the appropriate tertiary alkylaminoalkyl halide or a salt thereof, in the presence of caustic alkali, e.g. in the presence of dry, powdered sodium hydroxide.  Suitable alkylaminoalkyl halides mentioned are the dimethylamino-, diethylamino-, and dibutylamino-ethyl and propyl chlorides.  A number of specific compounds are mentioned.  The product may be converted to a salt.
Patent GB-1128670-A (GB)
Title: Network to determine an available route through a switching network
IPC: H04Q3/54
Filed: 1966-07-22
Abstract: 1,128,670. Automatic exchange systems. INTERNATIONAL STANDARD ELECTRIC CORP. 22 July, 1966 [24 July, 1965], No. 33053/66. Heading H4K. In an exchange system having a multi-stage switching network and a common control circuit, the latter includes a memory in which the busy/idle state of each link is recorded and a further temporary memory to which the state of those links usable for a call are transferred from the first memory prior to a selection operation. The latter is performed by means of a form of simulation network which has an AND gate in respect of each possible route through the switching network. As described, the latter network consists of two, 2 x 2 arrays in each of three stages but it should be noted that the actual type of switch used is not specified. The simulator comprises a storage cell in respect of each BC link (cells b1-b4) and each C stage outlet (cells c1-c4) but as the identity of a calling inlet is known only two cells a1, a2 are provided for the four AB links. Each cell has a "free outlet" 1 and a "busy outlet" 2 and these are so connected to the AND gates V1 to V8 that only one of the latter (in a predetermined order of priority) can ever be conductive at one time. The gates each effectively define a unique route through the network and a translation field C supplies the identity of the links in a chosen route. Thus gate V1 corresponds to the route involving links a1 b1, c1. In operation, a call request from a particular inlet causes the main memory Sp to transfer the states of all those links accessible from the inlet, via leads La1- Lc4 to storage cells BR whereafter one of gates V1-V8 conducts and the translation field C is operative to deliver the link identities of the just selected route to the memory. In the latter these links are then marked busy and the chosen path set up. The simulator may be cleared immediately or at the beginning of the next call request. If the chosen route does not have access to a following equipment then the outlet leading to that equipment is artificially busied and a new route selection operation is performed. The main memory may be of the type described in Specifications 1,126,075 and 1,128,490.
Patent GB-494629-A (GB)
Title: Improvements in insulation of electrical conductors
IPC: H01B7/28
Filed: 1937-12-01
Abstract: A sheath on an electric conductor consists of a hard rubber composition admixed with a high molecular weight polymer of a purely aliphatic mono-olefine hydrocarbon, preferably having a branched carbon chain, e.g. polymerized isobutylene.  The proportion of polymer, whose molecular weight is preferably 50,000 to 150,000 and upwards, may be from 10 to 100 parts to 100 parts of rubber.  The amount of sulphur is at least 30 per cent of the weight of the rubber, a vulcanization coefficient of from 30 to 47 being preferable.  Specification 490,792 is referred to.
Patent GB-372731-A (GB)
Title: Improvements in tools
IPC: B23B27/18
Filed: 1930-11-05
Abstract: 372,731. Cutter picks. KRUPP AKT.- GES., F., Essen, Germany. Nov. 5, 1930, No. 33319. Convention date, Aug. 22. Void [Published under Sect. 91 of the Acts]. [Class 68 (i).] In cutter picks for mining ma chines of the kind in which a hare metal pin B is in serted in a stee shaft A, the angle a of the back o: the tool is between 1 and 35‹, and the angle # between the pin and the back of the tool is between 3 and 18‹ ; the strength of the material of the part A is between 80 and 200 kgs. per square mm. and varies with the sum of the angles a and #. In tool for a cutter-bar machine, Figs. 4 and 5, the angle alpha1 is between 2# and 30‹, the angle #1 between 3# and 18‹, and the clearance angle 1 between 1 and 15‹. The front C of the tool has a shoulder E and is narrower than the pin B1, the tool widening rearwardly and having a strengthening boss D. The cutting edge is formed at the part where the upper surface of the pin meets the material of the shaft A.
Patent GB-337602-A (GB)
Title: Improvements in bushings for bung holes
IPC: B65D39/08
Filed: 1929-11-04
Abstract: 337,602. Henderson, G. Y. Nov. 4, 1929. Bushes for bungholes. - A bushing for a bunghole comprises an externallythreaded flanged sleeve a which screws into an internally-threaded flanged sleeve c, the respective flanges b and d being provided with annular inwardly-projecting beads or rims e, f which bite into the wood of the cask around the bunghole and make a fluid-tight joint. The flange of the outer sleeve may be provided with upwardlyprojecting pins g or with webs or the like to prevent rotation of the part when the inner sleeve is being screwed into place.
Patent GB-288115-A (GB)
Title: Improvements in the construction of the frames of tennis and the like racquets
IPC: A63B49/02
Filed: 1927-12-12
Abstract: 288,115. Briggs, Ltd., W., and Monks, C. Dec. 12, 1927. Rackets.-he usual insertion or reinforcing strip A is secured to the frame B, C and wedge D by means of an adhesive and one or more dowels E. The dowels preferably extend obliquely into the frame.
Patent GB-830785-A (GB)
Title: Thermoplastic polymeric products and preparation thereof
IPC: C08F236/04
Filed: 1956-11-06
Abstract: A solid thermoplastic interpolymer is made by emulsion polymerizing 85 to 65 parts by weight of methyl methacrylate or mixtures of at least 55% thereof with a polymerizable compound having a single vinylidene group, e.g. ethyl acrylate, acrylonitrile, vinylidene chloride and styrene, but excluding vinyl pyridine, and 15 to 35 parts by weight of a copolymer containing by weight 90 to 50% of butadiene and 10 to 50% of styrene and having a molecular weight within the range of 25,000 and 1,500,000, the weight of the ingredients making a total of 100 parts, the polymerization being carried out at a temperature of from 15 DEG  to 80 DEG  C. in the presence of a catalyst, e.g. benzoyl peroxide, methyl ethyl ketone peroxide, tertiary-butyl, cumene and paramenthane hydroperoxides, potassium persulphate and azoisobutyronitrile, and a regulator, e.g. octyl, dodecyl, tertiary dodecyl and benzyl mercaptans, nitrohydrazines and carbon tetrachloride.  Also present in the polymerization emulsion may be emulsifiers, e.g. sodium oleate and sodium lauryl sulphate.  In an Example (9) the catalyst consists of a mixture of tertiary-butyl hydroperoxide, ferrous sulphate and sodium formaldehyde sulphoxylate.
Patent GB-450634-A (GB)
Title: Improvements in or relating to cases, holders or containers
IPC: A45D40/02
Filed: 1935-12-06
Abstract: 450,634. Cases for lipstick &c. COTY (ENGLAND), Ltd., 3, Stratford Place, Oxford Street, London.-(Coty Soc. Anon. ; 23, Place Vendome, Paris) Dec. 6, 1935, No. 33908. [Class 18] In a case for lipstick, &c. of the type comprising a slidable carrier 8, engaging a pinion 7 which, in turn, engages a rack 14 movement of which permits the opening or closing of a rigid, hinged lid 18, a spring or springs 21<1> act on the rack to eliminate backlash between the latter and the pinion. The carrier is cylindrical and provided with lateral flanges to keep it in position, and it is pushed up or down by means of a knob 17 which slides in slots 2, 4 in the outer casing 1 and an inner tubular member 3 respectively. A portion of the back of the carrier is bent inwardly and formed as a rack 10 which engages the pinion 7, the latter being pivoted on a flange to a plate 5 positioned between the casing 1 and tube 3. The rack 14 is formed on a plate 13 the upper end of which engages the back edge of the cover to prevent it opening, but when the rack is drawn downwards, the cover is released and flies open under the action of a spring coiled on its hinge pin. The spring on, the cover hinge may be replaced by a long, flexible member pressing on lugs on the cover at the hinge. The case is covered by a flanged, apertured plate 17<1>. The slots 2, 4 are obturated by a spring-pressed plate which is pushed aside by the knob 17. In a modification, the cover is hinged to the top of plate 13 so that as the plate moves downwards, the cover pivots and is withdrawn into the casing. A spring on the hinge of the cover tends to close it when it is exposed. In this modification, the top of plate 13 may be bifurcated and provided with vertical strengthening ribs.
Patent GB-521180-A (GB)
Title: Improvements in, or relating to, packing papers and the like
IPC: B65D65/40
Filed: 1939-08-14
Abstract: 521,180. Compound sheet materials. TOWNSEND, H. J. Aug. 14, 1939, No. 34125/38. [Class 140] A packing. material is made by coating one surface of one or both of two sheets of flexible paper with a flexible adhesive, e.g., a glueglycerine mixture, sprinkling pieces of cork over the adhesive surface, superposing the other sheet and pressing the sheets into contact between the pieces of cork by means such as rollers having a yielding surface, e.g., of felt or rubber. The paper may be waterproofed.
Patent GB-521628-A (GB)
Title: Improved fittings for hand rails
IPC: E04F11/18
Filed: 1938-11-24
Abstract: 521,628. Fencing; ground anchors. GASCOIGNE, G. H., and KNOX, J.R. Nov..24, 1938,- No. 34127. [Class 45]  Inclined handrails are connected to posts by socket members which may permit of some adjustment of inclination of the rails, and the post is supported in a socket which provides for some variation in inclination of its support: The Figure shows the handrails 4, 6 engaging socket member 7 apertured to engage the post 1 obliquely and retained in position-by finishing screws in bosses 10, 11. , The post is supported. in a socket'13 having an inclined base 12 to be secured to a support 14. The socket, is flared internally in one plane and provided with stops 15 on any of which the post may rest according to the inclination of the support 14. The ends of the socket members' 7 may also be flared internally in one plane to provide for some variation of inclination of the rails 4, 6. Specification- 462,769 is referred to.
Patent GB-605181-A (GB)
Title: Device for transforming direct current into alternating current or vice versa
IPC: H02M7/62
Filed: 1945-12-18
Abstract: 605,181. Converting. JOHNSEN AKTIESELSKABET, W. Dec. 18, 1945, No. 34200. Convention date, Feb. 18, 1944. [Class 38 (ii)] [Also in Group XXXVII] In a vibrating contact type inverter or rectifier the vibrator is a piezo-electric element. The element consists of two crystal plates a and b, e.g. of seignette salt, puttied together, with an electrode 3 between them, outer electrodes 1 and 2, connected electrically, and a contact member 14 which may be connected electrically to electrode 3. Fixed contacts 16 and 18 engaged by contact 14 may be connected to the D.C. supply 20. With the electrode 3 and contact 14 connected to the mid-point of the switch 20 the element bends away from contact 16 and contacts 14 and 18 engage the relative polarities of the electrodes reverse and the element bends back again. The resulting vibration, which may be at highfrequency, periodically reverses the supply to condenser 30 and primary winding 26 of the 'output transformer. In Fig. 3 the contact member 14 is insulated from the electrodes, which are connected with condenser 30, across the secondary terminals of the output transformer, The vibrator may operate in an evacuated bulb. The device may be used to rectify A.C.
Patent GB-488829-A (GB)
Title: Manufacture of hydantoins containing the sterol nucleus
IPC: C07J43/00
Filed: 1937-12-10
Abstract: Hydantoins containing a sterol nucleus are prepared by causing a ketone containing the sterol nucleus to react in solution simultaneously with a cyanide and ammonium carbonate, or ammonia and carbon dioxide, under pressure above 100 DEG  C.  As suitable ketones there are mentioned: androsterone, trans - dehydroandrosterone, androstene-dione-(3 : 17), 3-oxyetiocholanone-17, testosterone, androstanol-17-one-3, cholestanone, progesterone, oestrone, equilenin and their stereo-isomerides.  The esters and ethers of the hydroxy ketones above may also be used.  As solvents there may be used either water or organic solvents or mixtures thereof.  The products of the invention are characterized by their relative sparing solubility in organic solvents.  In examples: (1) an alcoholic solution of trans-dehydroandrosterone, ammonium carbonate and potassium cyanide is heated to 135 DEG  C. for 18 hours at 25 atmospheres pressure. The reaction mixture is then diluted with water, acidified, and filtered to give D 5 : 6 - 3 - oxy - etiocholene - 17 - spirohydantoin.  (2) An alcoholic solution of transdehydroandrosterone acetate, ammonium carbonate and potassium cyanide is heated for 15 hours at 120 DEG  C. at 20 atmospheres pressure in an atmosphere of carbon dioxide to give D 5 : 6 - 3 - acetoxy - etiocholane - 17 - spirohydantoin. (3) As in example (2) but using a temperature of 150 DEG  C. for a period of 24 hours at a pressure of 25 atmospheres in an atmosphere of carbon dioxide. Testosterone or dihydrotestosterone may also be used as the sterol ketone.  (4) Androsterone, potassium cyanide and ammonium carbonate are reacted as described in example (1) to produce 3-epioxy-etio-allo-cholane-17-spiro-hydantoin.
Patent GB-970847-A (GB)
Title: Ready-mixed concrete
Inventor: BALL BASIL VICTOR
IPC: B28C9/00
Filed: 1963-08-29
Abstract: Ready-mixed concrete is obtained by feeding gravel from a pit to at least one drainage heap to remove surplus water, feeding the gravel to at least one hopper, feeding gravel from the hopper and cement from a further hopper to a mixing drum on a vehicle standing on a weighbridge, the amounts of gravel and cement added being determined by the increase in weight of the vehicle.  The gravel can be graded in size, separate hoppers being provided for the different gradings.
Patent GB-282674-A (GB)
Title: Improvements in reflectors for illuminating streets and the like
IPC: F21S8/06
Filed: 1927-12-17
Abstract: 282,674. Zeiss, C. [Firm of]. Dec. 22, 1926, [Convention date]. Street and like lamps.-In a street or like lamp adapted to illuminate a substantially rectangular area, the reflector is formed by providing a reflecting layer on about the upper half of the surface of a barrel-shaped glass body of revolution a arranged with its axis substantially horizontal. The glass body is parabolic in longitudinal section, the axis of the parabola being at right-angles to the axis of rotation of the glass body. The lower portion of the glass body may comprise a central clear section flanked by sections which are frosted to diffuse the light and to prevent glare. The reflecting part of the glass body is protected bv a similarly-shaped sheet-iron casing b having end caps which follow the curvature of the casing and either or both of which may be opened. In the form shown in the Figure, the casing is fitted with a metal cap e and a ring i carrying screws f, k for engaging in collars h, h<1> joined to the glass body. The ring i carries a hinged mount m for a glass hood n, and the cap e carries a bulbholder t supplied with current by a cable u which enters through an aperture v in the casing b and passes along the hollow space d between the casing b and the glass body a.
Patent GB-483760-A (GB)
Title: Improvements in or relating to variable pitch propellers, especially for aircraft
IPC: B64C11/30
Filed: 1936-12-16
Abstract: 483,760. Screw propellers. FAIREY AVIATION CO., Ltd., FORSYTH, A. G., and PERT, G. J. SMITH-. Dec. 16, 1936, No. 34564. [Class 114] Screw propellers arranged in tandem and oppositely rotated are adapted to be varied in pitch by a double sun and planet control of one propeller by an operating gear passing through the hollow propeller shaft whilst the first propeller through a second set of double sun and planet gears adjusts the second propeller. An electric motor 29, or a hydraulic motor, is employed to actuate the shaft 25 carrying at its lower end a bevel wheel 24 which meshes with a bevel wheel 23 on a tubular shaft 20 which passes through the hollow hub and at its forward end carries a spur-wheel 30. Within this shaft 20 is a second shaft 19 which is fixed at its inner end to the engine casing 21, and at its other end carries a gear wheel 22. These wheels 22 and 30 constitute twin sun wheels and between them is a spider 31 carrying planet wheels 32, 33 of which the wheels 32 which mesh with the fixed sun wheel 22 also coact with an internally toothed ring 34 mounted to rotate as one with the front propeller 11, while the planet wheels 33 which mesh with the adjustable sun wheel 30 also coact with an internally toothed ring 35 which is freely mounted on the propeller and which by reason of the outer ring of teeth 36 and the pinions 37 provide for the actuation of the shaft 38 whereby the pitch of the blades is adjusted. The shaft 38 is continued to carry a pinion 41 which meshes with the second pinion 42 freely mounted on the hub and continued to drive a similar double sun and planet wheel lay-out which in turn actuates the adjusting shaft 52 of the second propeller 12. The arrangement for actuating the pitch adjusting gear is also utilized to actuate a pitch indicator and for this purpose the spindle 25 carries an extension which through suitable gearing is conveyed to the indicator. Specification 398,993 is referred to.
Patent GB-521908-A (GB)
Title: A new or improved fruit-picking device
IPC: A01D46/247
Filed: 1938-11-28
Abstract: 521,908. Picking fruit. MARSHALL, F. A. Nov. 28, 1938, No. 34566. [Class 6 (iii)] A fruit-picker consists of a hollow conical, pyramidal or like converging member of sheet-metal &c. adapted to grip the fruit and remove it when given a twisting movement, the lower end of such member being provided with a sleeve or ferrule for the reception of a rod or handle. A hollow inverted pyramidal member is divided at opposite diagonal angles into halves 1, 2, the half 2 being integral with a sleeve 4 for the reception of a rod 10. The parts 1, 2 are formed at the division with side flanges,  those on the part 1 being upturned at their lower ends 5 to receive the lower ends of the side flanges of the fixed part 2 and provide a pivotal connection. The parts 1, 2 are urged apart by a spring strip 6, and are relatively adjusted by means of a screw 8 engaging a tongue 7 on the movable part 1. The upper edge of the pyramidal members may be provided with a V-shaped cutting mouth or notch.
Patent GB-282694-A (GB)
Title: Improvements in and relating to mechanical oscillators
IPC: H03L1/02
Filed: 1927-12-22
Abstract: 282,694. Karolus, A. Dec. 22, 1926, [Convention date]. Tuning.-In order to maintain constant with temperature variations, the frequency of mechanical oscillators, the oscillators, which are in the form of tuning forks, reeds, &c., consist of an alloy or a combination of materials having different thermal properties such that the thermal expansion is substantially compensated by simultaneous variation of the elastic properties. Thus the tuning forks or other oscillators may be made from a uniform material in which the coefficient. of expansion and 'the thermo-elastic coefficient are both in the proper relationship of magnitude and sign to produce a constant frequency of vibration with changes of temperature, an example of such material for an ordinary prongtype tuning-fork being a chrome-nickel steel alloy containing about 30 per cent nickel and from 10 to 12 per cent chromium. Another method is by constructing the oscillator from different metals having different thermal expansion coefficients and different thermo-elastio properties.
Patent GB-1530644-A (GB)
Title: Dentifrice composition
IPC: A61K8/21
Filed: 1976-08-20
Abstract: 1530644 Stabilized fluorine-containing dentifrice KAO SOAP CO Ltd 20 Aug 1976 [4 Sept 1975] 34796/76 Heading A5B In a dentifrice containing 100-2000 ppm of water-soluble fluorine-containing compound (calculated as fluorine) the fluorine is retained in a water-soluble state by inclusion of 0,3 to 13% of montmorillonite of composition: The fluorine-containing compound may be sodium, potassium, lithium, ammonium, stannous or manganese fluoride or sodium monofluorophosphate.
Patent GB-325828-A (GB)
Title: A new or improved hand-operated appliance for exhibiting moving picture films
IPC: G03B15/08
Filed: 1928-11-27
Abstract: 325,828. Casani S., Brenner, J. G., and Emerson, C. Nov. 27, 1928. Kinematograph apparatus. - Portable apparatus for use in teaching dance steps, for trade and advertising purposes, &c., comprises an elongated frame a, Fig. 2, adapted to be supported against the person of the user by one hand and carrying an intermittently driven feed-sprocket c and a combined gate and view piece n slidably mounted on tongues m pressed up from the metal of the frame. The feed sprocket is driven by the maltese-cross mechanism b, c, d, f through gearing from a hand wheel or by a clock-work or electric motor. The combined gate and view piece n has an aperture o, a lens holder p and a cover plate o' to shield the film from the user's vision as it passes from the gate. The frame a is formed of flanged sheet metal and has apertures to allow the passage of an endless film, the bight of which either hangs loose or lies in a box secured to the underside of the frame.