baber/WOPTO huggingface dataset:
Patent GB-741456-A (GB)
Title: A device for determining at random series of sign symbols such as numerals or letters for use in coding or ciphering
IPC: G09C1/00
Filed: 1953-09-04
Abstract: 741,456. Ciphering &c. HAGELIN, B. C. W. Sept. 4, 1953 [Dec. 1, 1952], No. 24566/53. Class 146(2) A device for determining at random sign symbols for producing series of symbols for use in ciphering &c. comprises a moving container containing loose bodies. of different size or character, one or more openings in the wall of the container to allow the bodies to drop therethrough in given positions of the container, a channel for receiving bodies dropping through the openings, and means to record the number or arrangements of the bodies received by the channel. In the construction shown in Fig. 1 balls of two different sizes are contained in chambers 10 and 11 of a drum 9 which is rotated, preferably stepwise. Each time an opening 10<SP>1</SP> or 11' is opposite the opening 3 in the hopper 3<SP>1</SP>, smaller balls can enter cylinder 1, the piston 2 being held in its lowermost position by means of a control lever 13 acted upon by a cam 23, until a larger ball blocks opening 3<SP>1</SP>. As drum 9 rotates further spring 7 moves piston 2 to consolidate the balls in cylinder 1, and this resultant position of piston 2 determines the position of sector 12 and exposes through opening.14 a number corresponding to the number of balls in cylinder 1, this number may be printed on paper 16 by means of a hammer 17 and the corresponding type 15. As opening 10<SP>2</SP> or 11<SP>2</SP> comes opposite opening 3' spring 7 forces piston 2 upwardly and returns the balls to chamber 10 or 11. In a modified construction a magnet is fitted in the walls of cylinder 1 and the balls are of the same size but some are magnetic and some non- .magnetic. Balls pass into cylinder 1 until the passage is blocked by a ball held fast by the magnet. In a further construction the balls are of the same size but some are of insulating material and the others conducting, and the points of an electrical system are located in cylinder 1. The balls entering cylinder 1 displace piston 2 and when a conducting ball bridges the points it completes a circuit and the corresponding number is printed. Commonly driven devices may be arranged to operate independently side by side. Letters may be recorded instead of numbers, the number of balls being then increased from ten to twenty-five or six. Sector 12 may be surrounded with pins which stamp out a series of perforations in a record strip. In the construction shown in Fig. 6 the locse bodies consist of cylindrical rods 27 of different lengths, piston 2 allows five rods to enter, and these rods are pushed by a 'plunger 28 against a set of spring- pushed pins 29, the longer rods only actuating the pins to perforate a record strip. The drum may be vibrated.
Patent GB-379855-A (GB)
Title: Process and apparatus for the production of zinc white
IPC: C22B19/34
Filed: 1931-09-01
Abstract: <PICT:0379855/III/1> Zinc white is obtained by vaporizing zinc or other metallic zinc-containing metal in one region directly by means of hot gases which contain no constituents such as oxygen or carbon dioxide which would react with the zinc, the zinc vapour being thereafter carried over to the oxidation region.  Reference is made to the use of suitably purified gases from generator, roasting and oil furnaces.  The gases may be passed over or through the metal, which, in the former event, may be covered with anthracite or coke. Metallic bye-products are removed from the vaporization region for further treatment.  A furnace shown in the Figure comprises a coke-filled shaft 1, the upper end of which is provided with an adjustable perforated disc 5 through which air is admitted.  The combustion gases pass through a layer of coke 12 provided in the rotary drum 8 over the zinc contained therein. The zinc vapours are burned in chamber 13, air-inlet apertures 15 being provided for this purpose.  The bath is replenished by feeding zinc into the conduit 18, the metal being melted by the heat of combustion of the zinc.  In a modified apparatus, the rotary drum 8 is not present, the metal from conduit 18 falling on to the top of a column of burning coke contained in vertical shaft furnace, up through which air is passed.
Patent GB-477761-A (GB)
Title: Improvements in centrifugal separators provided with a tiltable cover
IPC: B04B7/02
Filed: 1937-09-10
Abstract: 477,761. Centrifugal separators. AKTIEBOLAGET SEPARATOR. Sept. 10, 1937, No. 24704. Convention date, Sept. 16, 1936. [Class 23] A centrifugal separator has a tiltable cover 2 with a removable fitting, such as a paring member concentric with the bowl, and a fixing device movably connected to the frame 1 holds the fitting to the cover and the cover to the frame. The device shown in Figs. 1, 2 consists of an arm 4 pivoted on the same hinge 5 as the cover, and held in closed position by a pivoted bolt 6 which enters a slot in the end of the arm. The centre of the arm is formed as an eye so that the fitting is held securely. In the modified form shown in Fig. 3, the fixing arm 9 extends from the hinge 5 to the fitting 3 and is held down by a screw 10 entering a hole in the frame. The end of the arm 9 is forked. When the arm 9 is tilted up the lug 11a engages the frame and the arm can support the open cover. In another modification a second arm, which can turn on a pin on the arm 9, carries a screw to engage the frame.
Patent GB-1122252-A (GB)
Title: Ingot moulds
IPC: B22C3/00
Filed: 1966-06-03
Abstract: The base of an ingot mould is coated with a slurry comprising at least one refractory selected from vitreous silica, crystalline silica, aluminium silicate, alumina, graphite, zirconium silicate, magnesium silicate and clay, said refractory being suspended in a binder comprising a colloidal silica sol and silicic acid sol and allowed to dry.  The binder may be used with other binders such as ethyl silicate, aluminium phosphate and sodium silicate.  The coating prevents erosion during pouring and adherence to solidified ingots.ALSO:To prevent erosion during pouring and adherence to solidified ingots, the base of an ingot mould is coated with a slurry comprising at least one refractory selected from vitreous silica, crystalline silica, aluminium silicate, alumina, graphite, zirconium silicate, magnesium silicate and clay, said refractory being suspended in a binder comprising a colloidal silica sol. and silicic acid sol. and allowed to dry.  The binder may be used with other binders such as ethyl silicate, aluminum phosphate and sodium silicate.
Patent GB-393568-A (GB)
Title: Improvements in high-vacuum discharge tubes, e.g. for the production of x-rays
IPC: H01J5/06
Filed: 1931-09-04
Abstract: 393,568. Discharge apparatus. MULLER AKT.-GES., C. H. F., 24, Fuhlsbuttelerdamm, Fuhlsbuttel, Hamburg, Germany. Sept. 4, 1931, No. 24866: Convention date, Sept. 9, 1930. Void [Published under Sect. 91 of the Acts]. [Class 39 (i).] In discharge tubes such as R÷ntgen-ray tubes, and particularly high-vacuum tubes operating with a pure electron discharge, a metal part 3 of the outer wall divides up the voltage between the electrodes, and a metal screen 4 is arranged between the part 3 and the discharge space. The annular space enclosed by the parts 3, 4 and the glass parts 1, 2 is evacuated and is completely sealed from the discharge space. The part 3 can thus be earthed without receiving currents from the discharge space. The screen 4 extends at the ends beyond the part 3 to make the areas of the parts equal and so produce a homogeneous field between them.
Patent GB-438676-A (GB)
Title: Improvements in or relating to the production of water-resistant bodies consisting mainly of calcium hydroxide
IPC: C01F11/02
Filed: 1934-08-29
Abstract: Water resistant bodies consisting mainly of calcium hydroxide are obtained from moistened lumps of calcium oxide or from solid bodies produced by moulding calcium hydroxide with water by treating the initial materials with carbon dioxide or a gas containing it at ordinary temperature until say 5--10 per cent of carbon dioxide is absorbed, and then raising the temperature gradually above 100 DEG C., say to 200--300 DEG  C., until the product is sufficiently dehydrated to be stable in contact with water.  The heating may take place in the presence of carbon dioxide, and the final product also be allowed to cool in the presence of this gas. The water content of the final product may correspond to that of monohydrated calcium hydroxide.
Patent GB-458613-A (GB)
Title: Improvements relating to means for supplying the charge to internal combustion engines
IPC: F01N5/00
Filed: 1935-09-07
Abstract: 458,613. Pumps. GLASSPOOLE, G. H., 37, Portland Road, Rugby. Sept. 7, 1935, Nos. 24963/35 and 3167 /36. [Class 7 (ii)] Means for compressing the charge comprise a chamber a into which air from the atmosphere is forced by an injector e attached to the exhaust pipe f and from which it passes by a pipe b, a second pipe c being provided at the top of the chamber for the escape of the exhaust gas. The passage d leading from the injector may be radial or tangential to the chamber. The pipe b leads either to a chamber enclosing the carburetter to which fuel is supplied by a pump adapted to maintain an adequate head of fuel, and, in the case of a Diesel engine, direct to the cylinders.
Patent GB-518552-A (GB)
Title: Improvements in radio tuning circuits
IPC: H03J3/28
Filed: 1938-08-26
Abstract: 518,552. Radio receiving apparatus. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and BRAILSFORD. J. D. Aug. 26, 1938, No. 25172. [Class 40 (v)] [Also in Group XXXVI] Gang-controlled reactances having switch means to change the wavebands, have auxiliary reactances associated with a plurality of tuning bands controlled by the ganging means and 'capable of adjustment by deformation of moving or controlling parts to correct for tracking errors. The correcting means may be additional to the usual padding condenser. The auxiliary impedance may be capacitative, as shown in Fig. 5, in which auxiliary condensers 1, 2 are mounted on the main shaft, or inductive as shown in Fig. 7 in which a coil has a moving core P mounted on a spring IS and controlled through a tappet ST by a laterally-deformable cam TC. Separate condensers 1, 2 or coils l and cams TC are provided for separate wave bands and in the former case the appropriate condenser is connected up by additional contacts on the wave-band switch. The apparatus is particularly applicable to superheterodyne receivers with the auxiliary reactance connected in the local-oscillator circuit.
Patent GB-1043029-A (GB)
Title: Acetylation of cardiac-active cardenolide glycosides
Inventor: REPKE KURT
IPC: C07J19/00
Filed: 1965-06-15
Abstract: The invention comprises a process for acetylating cardio-active glycosides wherein the glycosides, without the use of additional solvents, are dissolved directly in acetic acid at its boiling point and acetylation is effected at boiling temperature to the required degree. Starting materials specified are gitoxin and digitoxin.
Patent GB-150718-A (GB)
Title: Improvements in or relating to rotary pumps or fans
IPC: F04D1/00
Filed: 1920-09-01
Abstract: 150,718. Salmson, Les fils de E., (Assignees of Soc. les HÚritiers d'E. Salmson). Sept. 9, 1919, [Convention date]. Casings.-The casing of a rotary pump or fan is made in two parts A, B, the joint being in the central plane and the parts being constructed to ensure exact centring of the shaft. Each part is bored to receive the shock-absorber C which consists of two parts c, d. The part c carries the diffuser blades, and the two parts are secured' together by bolts f and then attached to the casing part A by screws h. The casing part B is then fitted over the part d.
Patent GB-949241-A (GB)
Title: Improvements in or relating to double-lift jacquard machines
Inventor: BECK WERNER
IPC: D03C3/06
Filed: 1962-07-02
Abstract: 949,241. Double-lift Jacquard. WEBSTUHLBAU KARL-MARX-STADT VEB. July 2,1962, No. 25309/62. Heading D1E. Double legged hooks 1-4 are capable of being supported in the upper shed position by oppositely moving open shed blades 16, 17 after having been raised to this position by oppositely moving griffes 14, 15. As the griffes cross, griffe 14 rising as in Fig. 2) there is a possibility of the left leg of hook 2 accidentally engaging the griffe 14. This is obviated by movement to the left of grid 22 as the griffes cross. A grid 23 has a similar purpose and is actuated when the griffes cross in the opposite direction. The grid 22 is prevented from acting on any left leg which is in the upper shed position by a bend 28 in the leg, and a bend in the right leg similarly prevents grid 23 acting on it when in the upper shed position. The independent movement to the left of the left and right legs is allowed by the construction of the reading needles 5-8 shown in Fig. 6.
Patent GB-998587-A (GB)
Title: Improvements in or relating to luminescent materials
Inventor: ROTHSCHILD SIEGFRIED
IPC: C09K11/08
Filed: 1961-07-13
Abstract: A method of preparing a phosphor comprises (a) firing a mixture of starting materials comprising zinc and/or cadmium sulphide, selenide or telluride and a compound providing copper, silver or gold as main activator, in the presence of a halogen or a gaseous or wholly volatilizable halogen compound so that halogen is incorporated as a first co-activator, (b) moistening the fired product with a solution of indium or gallium to provide a second co-activator, and (c) refiring in an oxygen-free atmosphere.  The halogen may be bromine, alone or as ammonium bromide, and the atmosphere may be nitrogen. The percentage of cadmium may be 25% or more and the molar ratio of combined co-activators to activator should be greater than unity. The preparation of zinc-cadmium sulphide activated with silver, bromine and gallium is described in detail, both firings being at 975 DEG  C.  The product is compared with similar ones in which either the bromine or the gallium is omitted, and the superiority in regard to colour shift is shown.
Patent GB-1463431-A (GB)
Title: Selective plating or coating
IPC: C25D5/02
Filed: 1975-06-16
Abstract: 1463431 Selective plating STANDARD TELEPHONES & CABLES Ltd 16 June 1975 25584/75 Heading C7B A workpiece e.g. an electrical connector blade 21 is selectively electro-plated e.g. with a gold contact stripe 22 by extending it through the interface 17 between a plating solution and an underlying fluid effective to mask the portion of the workpiece therein against plating. The underlying fluid may comprise a fluidized bed of particles e.g. of alumina, or fibres e.g. of spun glass, or be an inert liquid immiscible with and of greater density than the plating solution e.g. of fluorocarbon. The upper surface 2 of the plating solution may interface with an over-lying fluid e.g. an aromatic hydrocarbon such as xylene. In the latter case the lower surface of the inert liquid preferably interfaces with a further under-lying conducting liquid e.g. mercury which may be used as a cathode contact or support by flotation. As shown the (gold) plating solution is contained within a bath 1 forming part of a first weir system e.g. slots 3 in end-walls 4, and the inert liquid is contained within its own second weir system, e.g. contained in trough 14 having slots 16 in its endwalls, totally submerged in the plating solution; the weirs maintain constant levels 2 and 17 respectively. The overflow into reservoirs 5 is recycled via pipes 6, 7 and inlet 8 to maintain the head. The trough 14 is replenished via pipes 18, 19 and apertures 20, and supported by supports 15 bearing on side walls of a sump (10), Fig. 2, (not shown), similarly having endplates 11 with slots 12, in turn (supported by members 13). Anode plates 9 are supported along each bath side by bent over portions 9A. Surface activated silica particles may be added to the inert liquid to increase its viscosity. Polyelectrolytes may be added to the plating solution. The apparatus may be used for electro-phoretic deposition or non-aqueous plating e.g. Al from aromatic solution.
Patent GB-487856-A (GB)
Title: Improved method and device for providing a differential regulation of the supercharging and scavenging in internal combustion engines
IPC: F02B33/00
Filed: 1936-09-22
Abstract: 487,856. Two-stroke engines; regulating. CHABAY, M. R. A. Sept. 22, 1936, No. 25737. Convention date, Nov. 16, 1935. [Classes 7 (ii) and 7 (vi)] In engines for aircraft having the scavenging and supercharging air supplied from the same compressor, means are provided for differentially regulating the proportion of air which is used for the two functions, so that the amount used for scavenging is reduced as the altitude increases, and the amount used for supercharging is correspondingly increased. Fig. 1 shows a compressor 2 supplying compressed air to a reservoir 5 which communicates by a valve 14 with a second reservoir 10 supplying air for scavenging through a valve 11, the air in the reservoir 5 being supplied through the carburetter 8 and valve 7 for supercharging. The valve 14 is so loaded that the correct proportion of air passes into the reservoir 10 according to the altitude ; or the valve 14 may be actuated by gear adjustable by hand or by an aneroid so as to give the desired regulation. Fig. 2 shows a cam 19 for actuating the valve through a rod 16, the cam being adjusted axially by a rod 23 connected by a double roller bearing 22. The valve 14 may form the scavenging valve on the cylinder.
Patent GB-1480542-A (GB)
Title: Face seal structure
IPC: F04B1/20
Filed: 1975-06-17
Abstract: 1480542 Reciprocating pumps UNIVERSITY ENGS Inc 17 June 1975 [2 Aug 1974] 25781/75 Heading F1A A face valve plate 50, e.g. for a pressure exchange device comprising a rotor with axial bores sequentially registering at each end with high and low-pressure driving and driven liquid connections via face valve plates, Figs. 17 and 18 (not shown), comprises arcuate high and low-pressure ports 58, 60, one side of the plate having secured thereto or formed integrally therewith a sealing element 54 formed with a sealing and bearing surface 56 having recesses 66, 74 in the lands between the ports, the recesses communicating through restricted bores 68, 76 with spaces defined by O-ring seals 70, 78 located within zones defined by a seal 72 surrounding the high-pressure port on the opposite side of the valve plate, additional seals 80 and 84 being provided. In operation, the pressures acting over the surfaces defined on both sides of the valve plate act to balance the plate and provide a controlled bias towards the rotor. As shown, element 54 is bonded to plate 50 and additionally located by ridges 62, 64. To prevent pressure shocks when rotor ports move over the lands between the ports, grooves may connect the ports, or one or more grooves may extend into the ports from the lands, or a bore may be provided through the land, Figs. 12 to 16 (not shown).
Patent GB-1309706-A (GB)
Title: Process for the production of fibrous alkali metal hexatitanates
IPC: C01G23/00
Filed: 1971-04-19
Abstract: 1309706 Hexa titanates BAYER AG 19 April 1971 [1 April 1970] 25850/71 Heading C1A Fibrous, water-insoluble hexa titanates M 2 Ti 6 O 13  (M = alkali metal) are prepared by reacting TiO 2  with at least one alkali metal compound which reacts as a base under the reaction conditions in an alkali metal sulphate melt at temperatures of up to 1300 C., preferably 900-1250 C. The TiO 2  may be produced in situ by thermal decomposition of a suitable Ti compound. The mole ratio M 2 O : TiO 2  is preferably 1 : 2 to 1 : 6 and the concn. of reactants in the melt may be up to 40%. Specified alkali metal compounds include hydroxides, acetates, oxides, oxalates, thiocyanates, nitrites, and nitrates especially of sodium and potassium.
Patent GB-800772-A (GB)
Title: Improvements in processes of photographic reproduction
IPC: G03C5/315
Filed: 1956-08-24
Abstract: 800,772. Photographic process and receiving sheet therefor. KODAK, Ltd. Aug. 24, 1956 [Aug. 25, 1955], No. 25919/56. Class 98(2) An imagewise exposed unhardened silver halide emulsion layer is developed in the presence of a tanning developing agent and then a thin stratum of the unexposed parts of the emulsion layer is transferred in the presence of moisture and in the manner of Specification 655,274, on to a receiving sheet comprising a paper base coated with a mixture of one of the silver halide fogging compounds thioacetamide, dithiooxamide, dithiobiuret, thiosemicarbazide and thiourea, and one of the gelatin tanning retarding compounds sodium formaldehyde bisulphite, sodium formaldehyde sulphoxalate, 2 : 4 - dihydroxybenzoic acid, sodium benzene sulphinate, borophosphate, aminomethane sulphonic acid and borax- With this receiving sheet the fogging agent fogs the unexposed, transferred silver halide and the tanning retarder stops tanning development in unexposed areas, and enables production of six to nine copies from a single developed emulsion layer. Preferably the tanning developing agent, if  desired with admixture of a non-tanning developing agent, is included in the emulsion layer, for processing by alkali only The receiving sheet may be made by coating a gelatin or melamine-formaldehyde sized paper stock with an aqueous solution of one of the specified mixtures or such mixture may be included in the paper stock at a late stage in the manufacture of paper. Translucent paper stock such as described in Specification 800,771 may be used. Surfuctants may be included in the coating solution for the receiving sheet or in the alkaline solution for development. The receiving sheets may be overcoated with an ammoniacal solution of a polymer such as that of methyl methacrylate-methacrylic acid or others as described which do not interfere with absorption of alkaline liquid for development but alleviate the spreading of ordinary inks which may be used to write on the finished prints. Specification 725,667 also is referred to.
Patent GB-970653-A (GB)
Title: Improvements in or relating to sealing rings for socket joints in pipes
IPC: F16L21/02
Filed: 1961-07-18
Abstract: 970,653. Joint-making packing. HALBERGERHUTTE G.m.b.H. July 18, 1961 [Aug. 2, 1960], No. 26040/61. Heading F2B. A packing for sealing a socket joint between pipes conveying corrosive gases in which aromatic and aliphatic hydrocarbons may be present consists of a rubber ring 1 and an annular cap 3 of polyamide fitted to the portion 2 of the ring 1 which is to be exposed to the action of the gas. The portion 2 forms a tapered face on the ring. The cap 3 is secured to the portion 2 by its own elasticity or by heating, tacking, riveting or by an adhesive.
Patent GB-616213-A (GB)
Title: Improvements in diving masks
IPC: B63C11/12
Filed: 1946-08-30
Abstract: 616,213. Diving masks. DUBOIS, P. R. Aug. 30, 1946, No. 26079. Convention date, Dec. 19, 1944. [Class 68 (ii)] [Also in Group XX] A diving mask comprises a tubular rim portion, the thickness of which decreases from the end edge which supports a window and the end edge which is adapted to fit the face of the wearer, above the mouth. In the form shown, the tubular rim 1 is of rubber and its thickness decreases in steps from the edge supporting a glass plate 3 to the edge which is so flexible as to fit at 11 the wearer's forehead and at 10 the wearer's upper lip. Projections 12, 121 engage the cheek bones, while straps 9, 91 engage the nape of the wearer. These straps are pivoted on studs 8, 8<SP>1</SP> which project through a metal strap 5 provided with a tightening bolt 6 and encircling the rim to hold the plate 3 in place.