baber/WOPTO huggingface dataset:
Patent GB-815889-A (GB)
Title: Rolling magnesium alloy
IPC: B21B3/00
Filed: 1957-09-05
Abstract: 815,889. Making magnesium-alloy foil. DOW CHEMICAL CO. Sept. 5, 1957 [Sept. 28, 1956], No. 28041/57. Classes 83 (2) and 83 (4). Rolling; working at specified temperatures.- A method of producing rolled strain hardenable magnesium base alloy sheet or foil in the recrystallized state comprises rolling a cast ingot at a temperature above its recrystallization temperature so as to reduce its thickness to between 118 to 143 per cent, preferably 125 per cent, of the desired final thickness, rolling the soreduced metal to the desired final thickness while lowering its temperature to below that at which it recrystallizes, and coiling the resulting rolled metal sheet or foil on a mandrel without reheating above its recrystallization temperature, the minimum radius of the coil so produced being not less than 50 times the thickness of the rolled metal sheet or foil. The ingot is subjected to a solution heat treatment by soaking in a furnace at 850 F. for about 10 to 20 hours the ingot being held at 850‹ F. for at least 4 to 6 hours. In the first rolling the number of hot passes varies according to the initial thickness of the ingot and the ultimate thickness desired and if coiling is necessary before the final pass the hot rolled metal is coiled while hot, uncoiled hot, and thereafter further rolled hot. The final cold rolling is carried out at a temperature of about 275‹ F. the hot rolled metal being about 25‹ F. to 200‹ F. above its minimum recrystallization temperature when about to enter the mill. Articles drawn or formed from the coiled metal foil exhibit a smooth surface free from twinning or sporadic grain growth. An initial ingot 12 inches thick, 40 inches wide and 76 inches long rolled according to the invention produced a sheet or foil 0.052 inch in thickness and about 1000 feet in length.
Patent GB-373039-A (GB)
Title: Improvements in and connected with electric lighting, heating and power installations
IPC: H02J3/38
Filed: 1931-10-09
Abstract: 373,039. Supplying consuming devices. BRANSOM. W. J., 4, Renters Avenue, Hendon, London. Oct. 9, 1931, No. 28079. [Class 38 (iv).] A lighting circuit 1, 5 is connected across an accumulator through a relay coil l, and the load circuit 1, 12 is connected across the accumulator through a high resistance coil m. When the switch of a consuming device in the load circuit is closed, or when the lamp load exceeds a predetermined value, the contactors k, o close, one connecting the generator a to the battery through a normally closed contactor e, the other energizing a coil p to open fuel supply &c. of prime mover. The generator runs as a motor to start prime mover. When the prime mover has started and the dynamo voltage reached a certain value a contactor q closes and connects the load circuit direct to the generator through a low resistance coil n which maintains the contactors k, o closed while the load persists. Since the coil m is of high resistance a heavy load is not imposed on the accumulator which may therefore be small in size. If'the prime mover fails to start within a predetermined time a contactor e opens and disconnects the generator from accumulator.
Patent GB-868938-A (GB)
Title: Improvements in or relating to the manufacture of steel
IPC: C21C7/00
Filed: 1957-09-05
Abstract: Steel is produced by the following steps:  (a) Melting in a basic electric furnace;  (b) Adjusting the manganese content thereof so as not exceed 0.25% at the end of the oxidation period;  (c) Treating the steel with a final reducing slag containing a maximum of 10% silica;  (d) casting the steel thus produced in a vacuum ensuring that the addition of deoxidants does not raise the manganese content above 0.25% and the silicon content to above 0.1%.  In an example the steel was melted under one slag, oxidized by a second slag rich in iron oxide, a third slag being formed and oxidation continued by blowing with an oxygen lance into the bath.  A reducing slag containing coal dust and calcium silicon was used for stage (c). During vacuum casting, deoxidants such as magnesium, aluminium, cerium, titanium, or alloys thereof may be added.  Specification 796,369 is referred to.
Patent GB-434569-A (GB)
Title: Improvements in or relating to refrigerating apparatus for use in ships and vehicles
IPC: F25D3/12
Filed: 1934-10-01
Abstract: 434,569. Refrigerator - cars &c. TOVOTE, L., 6, S³dstrasse, Rethen, Leine, Germany. Oct. 1, 1934, No. 28101. Convention date, Aug. 16. [Class 29] Rail-cars, ships' holds, &c. are cooled by solid carbon dioxide &c. supported in containers suspended from the ceiling, and having a perforate base or closure plate which supports the refrigerant. Thus, the container may comprise a glass vessel 8 having a felt cover 9, and a zinc casing 10. The casing is suspended by rods 15. carrying plates 11, 11<x> between which is disposed a perforate slide 12. Fig. 4 shows a modified container comprising a heatinsulated zinc or aluminium cylinder having an iron casing, a perforate closure plate 21, and a suspension rod 23. The container may be of square cross-section.
Patent GB-206853-A (GB)
Title: New or improved means for measuring acoustical intensities or quantities determiningthem
IPC: H04R29/00
Filed: 1923-11-10
Abstract: 206,853. Rushen, P. C., (Siemens & Halske Akt.-Ges.). Nov. 10, 1923. Relays.-It is stated that sound impulses issuing in the form of a jet from a nozzle or the like give rise to much enhanced pressure over a limited region. This principle is utilized for causing the closure of electric circuits for alarm or like purposes. Thus a telephone diaphragm may cause sound impulses to issue from a nozzle 2<a>, Fig. 4, several forms of nozzle being indicated in the Specification, one of which, Fig. 2<c>, has an inward jet 17 for permitting the return movement of the air. Alternatively, a vibrating flat spring 16, Fig. 3, carrying a movable perforated plate or nozzle 14, forms the vibrating armature of a telephone magnet 13. Two telephones similar to that shown in Fig. 3, may cause air pressures to act in opposite directions on a pivoted plate, and are energized by two electric currents whose relative strengths are therefore indicated by the movement of the plate, which may close alarm or like circuits at the limits of its path. Fig. 4 shows apparatus for indicating variation from a predetermined standard on the part of an alternating or intermittent current. This current energizes two telephones 8, 8', whose diaphragms differ slightly in their resonance frequencies. Hence, unless the A.C. frequency lies midway between the resonance frequencies the jets impinging on the surfaces 21a, 21b are unequal, so that variation in the A.C. frecuency causes a movement of the pointer 11 which in its extreme positions closes the circuits of relays 25<a> and 25<b>.
Patent GB-1518514-A (GB)
Title: Method of and apparatus for pouring predetermined volumes of molten metal
IPC: B22D39/06
Filed: 1975-07-04
Abstract: 1518514 Discharging molten metal OTTO JUNKER GmbH 4 July 1975 [10 July 1974]  28402/75 Heading F1R [Also in Division G3]  Predetermined volumes of molten metal are discharged from a vessel 1 by air-pressure applied for a predetermined time. To ensure that the quantity discharged is not affected by the changing head of metal in the vessel 2 the air-pressure is increased in proportion to the falling head of metal. In the embodiment shown the air-pressure is increased as a function of pour time. In a second embodiment (not shown) the air-pressure is increased as a function of the decrease in weight of the vessel 2. The air-pressure is first applied to raise the metal in the spout 4 to the level of the discharge orifice 6 which reference level is detected by an electrode 23 which is lowered to the required level and subsequently withdrawn when the presence of the metal is detected and a signal is transmitted to the servomotor 20 which sets the valve 17 which controls the air supply valve 9 to apply the primary pressure which gives the required reference metal level in the spout. When the pour timing device 22 is actuated it causes an increment of pressure from a valve 19 to be applied to the valve 17 and so to the valve 9 which increases the applied pressure on the metal to cause pouring to commence. During pouring a timing device 21 operates on the servomotor 20 to increase the primary pressure. At the end of each pour a timing device 15 opens a vent valve 13 for a sufficient time so that the level in the vessel 1 returns to the level of the orifice 6. The vessel 2 may be replenished during a pour. In the second embodiment (not shown) the weight detector controls the servomotor 20 in place of the timing device 21.
Patent GB-675936-A (GB)
Title: New or improved multilayer light-sensitive photographic elements
IPC: G03C7/30
Filed: 1950-11-22
Abstract: 675,936. Multi-layer colour photographic elements. KODAK, Ltd. Nov. 22, 1950 [Nov. 23, 1949], No. 28535/50. Class 98 (ii). To avoid scatter of light by the upper layer or layers, which light is to affect a lower layer or layers, an element having a support as of cellulose ester, synthetic resin or paper carrying in any order, superimposed blue, green and red sensitized silver halide layers which may contain subtractive colour formers is provided in the upper layer with a temporary light-absorbing material which absorbs not more than three-quarters of the light to which the middle and/or lower layers are sensitized. Thus, an upper blue-sensitive layer may absorb some green and/or red light and in this case the middle, green-sensitized, layer may absorb some red light also; or an upper green or redsensitized layer may absorb red or green light respectively to which the middle layer is sensitized. The usual subbing, overcoating and, when the blue-sensitive layer is uppermost, yellow filter layer may be included in the element. The temporary light - absorbing material may be dye or pigment and is decolourized or removed from the element by a normal processing bath, and the quantity of such materials in the element is held to the minimum necessary to give improvement in image sharpness without excessive loss in speed of layers below these materials. The red light absorber may be Prussian Blue, including related iron blues such as Turnbull's Blue, and the green light absorber may be the aluminium lake of aurin tricarboxylic acid. Examples 1 and 2, respectively, describe the preparation of these light-absorbing materials, their incorporation into emulsions, and the manner in which, after exposure, they are bleached in processing solutions. Example 3 describes, in quantitative detail, a conventional type element containing Prussian Blue in the middle, green-sensitized layer and the above-mentioned aluminium lake in the uppermost, bluesensitive, layer. Specifications 541,589, 599,377 and 673,459 are referred to.
Patent GB-252262-A (GB)
Title: Improvements in and relating to the preparation of titanium pigments
IPC: C09C1/36
Filed: 1924-11-28
Abstract: 252,262. Blumenfeld, J., and Mayer, M. Nov. 28, 1924. Pigments comprise a titanium oxide or hydroxide base whose pores are sealed with an oxide or hydroxide of titanium, thorium, zirconium or cerium, obtained by precipitation or coagulation from a solution in which the base is suspended. The finely ground titanium oxide &c. may be suspended in solution containing compounds of the titanium-thorium family, and an oxide &c. of the said metals is separated by precipitation on to the suspended oxide; or the titanium oxide may be suspended in an aqueous colloidal solution of the oxide or hydroxide of the said metals, and the water evaporated. Any acids in the mixture mav be neutralized, and' the product calcined at red heat. In examples titanium oxide is suspended in (1) a solution of titanyl or titanium sulphate, and titanium oxide is hydrolytically precipitated therefrom under presure, by heating, or (2) a aqueous colloidal thorium oxide solution, and the water evaporated.
Patent GB-284182-A (GB)
Title: Improvements in hollow structures of plastic material
IPC: F16L13/11
Filed: 1926-07-12
Abstract: 284,182. Watson, C. W. July 12, 1926. Spigot - and - socket joints held by caulking and the like.-Hollow reinforced or plain structures of concrete 0!: like plastic material, such as pipes, telegraph posts, pier piles, and building columns, any of which may have branches or apertures, are moulded at one end with an internal circumferential channel, such as 60, and at the other end with an external circumferential channel such as 50, the channels being so arranged that when the pipes &c. are assembled the channels form a chamber capable of receiving packing. When the groove 60 is formed in an enlarged faucet end, it is formed as a recess in the length of the enlarged end. U-section packing in the chamber may be expanded by the fluid pressure in the pipe which has access thereto through the passage 44 at the shoulder of the faucet. The inner wall of the branch B may be similarly channelled, as at 80. The channels may be formed during moulding in the manner described in Specification 283,601, [Class 87 (ii), Moulding plastic &c. substances].
Patent GB-849960-A (GB)
Title: Multi-ribbed sealing strip
IPC: E04D3/38
Filed: 1958-09-08
Abstract: 849,960. Sealing strip. HARRY, H. A. Sept. 8, 1958, No. 28770/58. Class 20(4) A sealing strip for the junction between corrugated sheets and their supports comprises a generally U-shaped channel with upstanding outwardly flared extensions 30, the edges of these extensions and the surface 20 being corrugated to mate with the sheets. Modifications having extra flanges or ribs rising from the base of the U and ones having a series of pockets in the base are disclosed. The strip may have extensions on both top and bottom and is thus suitable for sealing between corrugated sheets.
Patent GB-469466-A (GB)
Title: Improvements in and relating to variable speed transmissions or the like
IPC: F16H33/08
Filed: 1935-10-19
Abstract: 469,466. Variable - speed gearing. SUYS, F. Oct. 19, 1935, No. 28927. Void. Convention date, Jan. 2. [Class 80 (ii)] A driving drum 17 is connected by compression-links 16 with freely-mounted annular masses 14, which are thereby thrust around the outer (or inner) periphery of eccentric discs 13, or crank-pins, secured to the driven shaft 11, so that the inertia forces of the masses impart to the driven shaft a speed which varies automatically with the load and speed. Several angularly-spaced eccentric discs may be used. In Fig. 4, the driving shaft 10 drags sliding or rolling masses 18 inside eccentric or elliptical tracks in the driven member 7. Jointed links, extended by springs or counterweights, connect the masses to the driving shaft.
Patent GB-803452-A (GB)
Title: Improvements in or relating to labyrinth seals
IPC: F01D11/02
Filed: 1956-09-21
Abstract: 803,452. Making labyrinth packing; soldering. COMERY, P. D. Sept. 21, 1956 [Sept. 22, 1955], No. 28994/56. Classes 83 (2) and 83 (4). [Also in Group XXVI] An element for a labyrinth seal is constituted by a metallic strip 14 which is formed across its width with crimps which are of greater magnitude at one edge than at the other so as to cause it to take up the desired circular or helical form. For sealing the space between a rotary shaft 18, Fig. 2, and a stationary mounting 15 the latter may be formed with a helical groove 17 for receiving a helical strip 14 or a number of annular grooves each of which receives a strip crimped to circular form. The strip may be secured in the groove by brazing, the brazing material being provided in the form of a band 22, Fig. 4, at the bottom of the groove 17, and/or a ring 23 placed against the crimped strip at the top of the groove, and the assembly is heated until the brazing material flows within and/or into the groove. The radius of the crimped element is made slightly larger than of the surface which will support the strip so that the resiliency of the strip will tend to hold it in the groove during brazing.
Patent GB-302772-A (GB)
Title: Manufacture of new vat dyestuffs of the dipyrazolanthrone series
IPC: C09B5/08
Filed: 1927-10-31
Abstract: 302,772. Imray, O. Y., (I. G. Farbenindustrie Akt.-Ges.). Oct. 31, 1927. Pyrazolanthrone - yellow series. - Pyrazolanthrone-yellow, or its substitution products bearing on the nitrogen no substituent, or only one monovalent substituent, are condensed with an aldehyde, in presence of a chloride of phosphorus, aluminium, or antimony, preferably in a diluent, at temperatures between 100‹ and 200‹ C. ; the products are vat dyes. In examples : (1) Pyrazolanthrone-yellow is condensed with benzaldehyde by means of phosphorus trichloride or pentachloride or aluminium chloride, in trichlorbenzene, or by means of phosphorus trichloride or antimony pentachloride, using excess of benzaldehyde as diluent. (2) Pyrazolanthroneyellow is condensed with o- or m-chlor, mhydroxy, or m-nitrobenzaldehyde by means of phosphorus trichloride in nitrobenzene. (3) Dichlorpyrazolanthrone-yellow is condensed with benzaldehyde by means of antimony pentachloride in nitrobenzene. (4) Tetrabrompyrazolanthrone-yellow is condensed with benzaldehyde by means of phosphorus trichloride in nitrobenzene. (5) Pyrazolanthrone-yellow is condensed with paraformaldehyde or paraldehyde by means of phosphorus trichloride in nitrobenzene. (6) Monoethylpyrazolanthrone-yellow is condensed with paraformaldehyde by means of phosphorus trichloride in trichlorbenzene. The products are pure yellow to gold-orange vat dyes. Specification 235,919 is referred to.
Patent GB-899970-A (GB)
Title: Hard shape of high resistance to attack by metal melts or vapours
IPC: C04B35/58
Filed: 1959-08-25
Abstract: Shapes having a high corrosion resistance at elevated temperature consist of by weight:-  <TABS:0899970/II/1> or <TABS:0899970/II/2> The shapes are made by pressing and sintering according to known powder metallurgical methods.  Examples are described in which pressures of 100 and 200 kg/sq. mm and 2 and 4 metric tons/sq. cm and temperatures of 1800-2000 DEG C. are used.
Patent GB-631780-A (GB)
Title: Improvements in or relating to inductive tuners
IPC: H01F21/00
Filed: 1947-10-31
Abstract: 631,780. Transformers. WINGROVE & ROGERS, Ltd., and MORGAN, H. B. W. Oct. 31, 1947, No. 29075. [Class 38 (ii)] A H.F. variable inductive tuner includes a rotatable (or, alternatively, stationary) coilholder upon which is helically wound a bare wire coil, a rigid contact piece in continuous engagement with the coil, and a contact flexibly-mounted carrier, whereby said contact piece is enabled upon relative movement between the coil and the contact piece to travel in continuous contact with the coil. The Figure shows a ganged inductive tuner having a bobbin of insulating material mounted on a shaft 12 carrying a bare wire coil 13 which is so wound as to provide a continuous spiral channel 14 with which a solid ball contact piece 18 makes continuous engagement. A plate 20 of insulating material serving as contact piece carrier is mounted on two pivoted balls 19 and is resiliently pressed towards the bobbin by means of a spring. A longitudinal groove in the plate 20 is provided with a pair of wires 25 leading to one terminal of the appliance. On rotation of the shaft 12, the ball 18 travels longitudinally along the tracking groove in continuous contact with the coil 13 and wires 25. Slip-rings 28 attached to each coil end carry brushes for connections to the other terminals of the appliance. In a modification instead of coil 13 a spiral groove is provided in the bobbin, and a conductive metal deposited in said groove to form in effect a spiral coil. The spherical contact piece may be of other shapes, such as a cylindrical body with reduced ends, or a cylindrical body grooved towards the centre. In a further modification, a flat coil mounted on a disc is used. In all the above arrangements, the coil may be stationary while the contact-piece carrier revolves. A powdered iron core may be used to vary the inductance.
Patent GB-1128688-A (GB)
Title: Improved selector board
IPC: H01R24/58
Filed: 1965-07-06
Abstract: 1,128,688. Plug-boards. SEALECTRO Ltd., and S. T. DEAKIN. 29 June, 1966 [6 July, 1965], No. 29149/66. Heading H2E. A cross-bar switch has two mutually orthogonal sets of parallel rows of rigid socket contacts which are mounted in two apertured insulating boards 11, 13, the sockets being pressed out of sheet material in strips of interconnected sockets 16, the strips being transversely bent to form humps 19 between adjacent sockets to impart resilience to the strips. Each socket may be of circular eyelet form or may be formed by a pair of opposed tongues (Fig. 6, not shown), and the sockets are secured in the boards by being expanded or turned over. The hump portions 19 may alternatively project in the same direction as the sockets (Fig. 3, not shown) and engage in slots in the boards. Connecting tags 21 may be soldered to or formed integrally with the strips, and the two boards 11, 13 may be spaced by an intermediate apertured board 12.
Patent GB-1310285-A (GB)
Title: Semi-conductive electrical elements and methods of manufacturing them
IPC: H01G9/00
Filed: 1970-06-16
Abstract: 1310285 Electrolytic capacitors TELEPHONUND TELEGRAPHEN - FABRIKS - AG KAPSCH & SOHNE IN WIEN 16 June 1970 [26 Jan 1970] 29168/70 Heading H1M In the manufacture of an electrical component, e.g. an electrolytic capacitor a layer 5 to 200 molecules thick of a metal of Group VII of the Periodic Table or an oxide thereof is deposited on a porous or roughened base of a Group V valve metal, then a layer of an oxide of the valve metal is interposed between the base and first layer. The interface between the latter and the valve metal oxide layer is stated to have semi-conducting properties. As shown, sintered tantalum anode 2 has a layer 4 of manganese dioxide applied by cathodic reduction of 0À05 to 0À2 N potassium permanganate solution (0À2 to 0À6% by weight) at room temperature using a current density of preferably 1À36 mCb per molecule thickness per square centimetre of effective surface area. Layer 3 is then formed by anodizing using 0À01 to 0À1% nitric or phosphoric acid solution. A further layer 5 of manganese dioxide is electrolytically deposited, then layer 6 of manganese dioxide deposited pyrolytically, then graphite and silver layers 7 and 8.
Patent GB-1009874-A (GB)
Title: Improvements in tape measures
IPC: G01B3/10
Filed: 1962-07-30
Abstract: 1,009,874. Tape measures. J. G. ROE. July 30, 1962 [May 24, 1962], No. 29205/62. Heading G1M. A tape measure comprises a shell 16 with a well-like aperture 30 and a cover plate 18 having an integral central hub structure comprising a bearing portion 20 journalled in the aperture 30 and an annular flange portion 22 to which the metal tape 12 is secured. A stud member with a flat head 26 and an interposed spring washer 28 are used to secure the parts rotatably together. The shell and cover are formed of moulded plastics material having strength, rigidity and high surface lubricity e.g. the resin known under the Trade Mark Debrin.
Patent GB-685801-A (GB)
Title: Improvements in mounting ceiling boards, wall panels, and the like
IPC: E04F19/06
Filed: 1950-11-29
Abstract: 685,801. Mounting ceiling and wall boards. GROBLER, P. L. Nov. 29, 1950 [March 16, 1950], No. 29254/60. Class 20(iv) A finishing strip for the joint between adjacent ceiling boards or wall panels consists of a strip of paper or fibre board 1 having a channel 2 formed along its midline, the channel being filled with plaster 3 reinforced by cords 4. A backing sheet 6 is stuck across the laterally extending flanges 5 to each side of the channel. In use, the strip is placed so that the flanges 5 lie between the edges of the boards 7 and their supporting member 8, the channel 2, which is of height equal to the board thickness, lying between the board edges to give a decorative finish to the joint The boards are then nailed to the member 8.