baber/WOPTO huggingface dataset:
Patent GB-1033863-A (GB)
Title: Refractory metal electrodeposition
IPC: C25C3/34
Filed: 1965-01-22
Abstract: Molybdenum and tungsten metal or alloys thereof are made in a dense coherent found by electrolysis using an all-fluoride bath of metal fluorides higher in the E.M. series than Mo or W, and a fluoride of the metal to be deposited.  An anode of impure W or Mo may be used, or of another metal when alloys are made.  As electrolyte, fluorides of Li, Na, or Ca are used preferably in entestic proportions. Tungsten hexafluoride and potassium hexafluoride molybdate are preferred starting materials, and gaseous fluorides of these metals may also be added.  The metal deposited has a density 98% of the theoretical density of the solid metal.  The dense form of the metal is controlled by adjusting the proportion of the melt, temperature and current density.  In the case of tungsten, melt is preferably 60 mols. per cent LtF, 40 of NaF, tungsten as metal in the fluoride 0.5 to 10 per cent by wt, temperature 675 DEG to 900 DEG C., and C.D. 5 to 100 MA per sq. cm.  For molybdenum, the same bath but containing Mo, as metal, from 1 to 12 per cent by wt., temperature 675 DEG to 900 DEG , and C.D. to 250 MA per sq. cm.  The process is effected in an inert atmosphere.  The cathode may be graphite, Ni or Cu which may be pre-anodized.  A gaseous hydrogen anode may be used, or an anode of a soluble metal e.g. alkali metals, Ca, Mg, or Al, when the electrolyte is circulated through an external station to remove excess active metal fluoride and re-change it with Mo or W fluoride. In such process the voltage required is below decomposition voltage of the alkali fluoride melt. The Mo or W metal may be deposited as foil and stripped off, or applied to electro-formed articles on nickel or graphite formers.
Patent GB-508982-A (GB)
Title: Heat accumulating electric heating element, in particular for kitchen-ranges, water-heaters and the like
IPC: F24C15/34
Filed: 1938-01-28
Abstract: 508,982. Heat - storing apparatus. BOYSSON, J. A. R. DE. Jan. 28, 1938, No. 2848. Convention date, Jan. 28, 1937. [Class 64 (ii)] A heat accumulating electric heating element for kitchen ranges, water heaters, etc., consists of a metal vessel 1, Fig. 1, containing a mass 4 of sulphur or an aluminium-magnesium-zinccopper alloy which melts at a temperature between the temperatures of utilization of the element, e.g. 300‹ and 500‹ C. The pot 1 is fluid tight when containing sulphur and lined with chromium or silicon carbide when containing alloy, and is surrounded by and heatinsulated from a Dewar flask 2. The top of the pot 1 forms a hot-plate for use in a kitchen range, Fig. 3, in which A, B are heat-accumulating elements. Another element E is provided in the oven and is combined with a thermosiphon circuit F. When applied to water heaters a coiled pipe is arranged in contact with the heat accumulator.
Patent GB-585079-A (GB)
Title: Improvements in or relating to rail trucks
IPC: B61H5/00
Filed: 1945-02-05
Abstract: 585,079. Brakes. STEVENS, A. H. (Clark Equipment Co.). Feb. 5, 1945, No. 2850. [Class 103 (i)] Braking-apparatus for a rail truck comprises shoes 40 carried by vertical shafts 36 having arms 46, at their upper ends, which are forced apart by a cam 54 to apply the shoes to a disc 25 secured to a shaft 19 which is connected by a universal coupling 20 to a driving-motor shaft. The brakeshoes are maintained in the "off" position by a spring 50 and are applied to the disc by a lever 52 actuated by the brake-cylinder 62 so that the cam 54 carried by the lever is forced between the rollers 47 on the arms 46. "The retraction of the brake-cylinder piston and the lever 52 is effected by a spring 65 and manual operation of the shoes is effected by a bell crank 70 with a forked arm 73 engaging under a collar 74 on 'the piston rod, the bell crank being operated by a cable 78. The shoes 40 are carried by arms 38 secured to the shafts 36, the arms 38 each having a spherical seat 39 which engages a similarly, shaped recess in the back of the shoe, whereby the shoe can swivel on the seat. The shoe is retained on the arm 38 by studs 43 which are screwed into the shoes and pass through the arm 38. Springs are interposed on the studs between a plate 45 and the arm 38.
Patent GB-1434201-A (GB)
Title: Extrusion
IPC: B29B7/00
Filed: 1973-01-19
Abstract: 1434201 Extruding; compacting scrap UNITED KINGDOM ATOMIC ENERGY AUTHORITY 13 Aug 1973 [5 Sept 1972 15 Nov 1972 19 Jan 1973] 41133/72 52830/72 and 2968/73 Addition to 1370894 Headings B3P and B3H [Also in Divisions B4-B5] An extrusion apparatus comprises a first movable grooved member, a second member extending over the groove to define a passageway, an abutment on the second member to block the passageway, a die orifice adjacent the abutment through which material frictionally dragged along the passage by the first member is extruded and a portion on the second member extending into the groove to define the passageway even if the members move apart slightly. The first member may be elongate but is preferably a grooved wheel 1 and the second member is a shoe 4 shaped to fit the wheel. The shoe has an abutment 7 with a die orifice 8 and a separate or integral portion 6. The portion 6 fits into the wheel groove with slight clearances (10), Fig. 2 (not shown). The clearances remain constant even if the shoe 4 moves away from the wheel 1 and define flash escape openings. The wheel may be made of three abutting discs 12-14, Fig. 3, keyed to a shaft 16 and urged together. A shoe 17 is used to define a passageway 15 for frictionally feeding material to be extruded. The material to be extruded may be metal in solid or powder form, or machining swarf. The material in powder or swarf form can be pre-compacted by a roller (28), Fig. 5 (not shown), which co-operates with the wheel groove.
Patent GB-396426-A (GB)
Title: Improved device for automatically controlling humidifiers
IPC: H01H35/42
Filed: 1932-02-02
Abstract: 396,426. Actuation of switches. BRECKNELL, MUNRO, & ROGERS (1928), Ltd., Pennywell Road, and DOLMAN, H. J., Rondray, Church Road, Staple Hill, both in Bristol. Feb. 2, 1932, No. 3059. [Class 38 (v).] In a device for automatically controlling a humidifier, a control member governing the action of the humidifier is adapted to be moved by a power-driven element, said movement being restrained by an escapement lever actuated by an hygroscopic member and mechanically connected thereto. As shown, the hygroscopic member consists of a hair 23 connected between an adjustable spring blade 24 and a pivoted two-armed lever 22, one arm 18 of which normally engages a tooth 17 on a clockwork-d r i v e n disc 15. On vibration of the hair, the tooth 17 is released and the wheel 15 rotates through half a revolution ; when the tooth is engaged bv the second arm 19 of the lever 22. During this rotation a wheel 12 geared to the disc 15 rotates through an angle sufficient for a pin 11 on this wheel engaging an arm 6 on a mercury switch carried to rock the mercury switch and complete the circuit 2, 3 to the humidifying apparatus, which may comprise a motor coupled to a pump for supplying water to the humidifier. A further similar actuation occurs when the hair 23 stretches sufficiently to permit the spring-controlled lever 22 to rock and the arm 19 to release the tooth 17 so that the disc 15 again rotates through a half revolution, the arm 6 escaping from the pin 11 during this movement so that the mercury switch moves back to the position shown engaging the next pin 11 in readiness for a further operation and the circuit 2, 3 to the humidifying apparatus is broken.
Patent GB-470451-A (GB)
Title: Improvements in or relating to screen-stencil printing machines
IPC: B41F15/08
Filed: 1937-02-02
Abstract: 470,451. Stencilling - apparatus. ETABLISSEMENTS K. L. V. Feb. 2, 1937, No. 3075. Convention date, Feb. 4, 1936. [Class 100 (ii)] In stencil-printing apparatus of the type comprising a stencil-screen mounted in a carriage 2 movable along a work-supporting table to successive printing positions, a device is provided for stopping the carriage 2 in accurately-registered positions comprising an infinitely-variable change-speed gear 45 driven in accordance with the movement of the carriage along the table and driving a rotary cam 55 which, when it has rotated through a constant angle, effects the stopping of the carriage. The gear 45 is mounted on the carriage and is driven by a shaft 51 carrying a pinion 52 engaging a rack 53 on the worktable, and drives the cam 55 by a shaft 54; the speed ratio is varied by rotating a shaft 48. When the carriage is stationary, a roller 59 carried by a pivoted support 60 is pressed by a spring 57 into a recess in the cam. To release the carriage, a hand-crank 68 connected by a cable 65 to the support 60 is rotated to withdraw the roller 59, the support being then held by a hook 62 which engages a notch 63 in a bracket 64 on the carriage 2. The carriage is then moved along the table until a cam 70 rotated by gearing from the shaft 54 trips the hook 62 whereby the roller 59 re-engages with and stops the cam 55. The cam 70 is driven at half the speed of the cam 55 so that the carriage advances two stages, the blanks being printed during a second run, after turning the cam 70 through an angle of 180‹.
Patent GB-932420-A (GB)
Title: Sound insulating material and method of use thereof
IPC: E04B1/84
Filed: 1960-01-28
Abstract: 932,420. Laminates. ICOA S.A. Jan. 28, 1960 [Oct. 24, 1959], No. 3129/60. Class 140. A wall has a sheet of spongy material bonded to it, the sheet having a film of anti-sonant material firmly adherent to it and between it and the wall. The wall may be of a metallic nature and may be a metal panel as used in motor vehicles. The spongy material may be a foamed synthetic plastic such as polyurethane or polyvinyl chloride. The antisonant material is a material having a lossy mechanical hysteresis loop and capable of absorbing vibrational energy, e.g. asphalt, bituminous substances, synthetic resins, or reclaimed or natural rubber, possibly with fillers but not foamed, and may be applied as a solution or aqueous dispersion. This sheet can be attached to the wall by spots of adhesive.
Patent GB-698042-A (GB)
Title: Improvements relating to reciprocating pumps for dispensing liquids
IPC: F04B7/04
Filed: 1950-02-07
Abstract: 698,042. Reciprocating pumps. FREEMAN (ENGINEERS), Ltd., A., and FREEMAN, A. Jan. 29, 1951 [Feb. 7, 1950], No..3137/50. Class 102 (i). In a pump for dispensing liquids, e.g.,glue, the cylinder 4 is mounted within the container 1 for the liquid and the piston 7 is actuated by a pedal 20. A sleeve 21 is attached to the container and has holes 24 of varying depth into one of which enters a pin 28 during the delivery stroke. The pin 28 is carried by a sleeve 25 attached to the rod 17 that can be rotated to various positions, determined by the detent 29, to vary the stroke. The pump piston 7 controls the suction port 5 and on the delivery stroke, the liquid is forced past the cup leather 35 and through the passage 36 and hollow piston to the tube 10. The cup leather 35 acts as a non-return valve and is supported by a member 30 that has limited movement relative to the piston, through a pin and slot connection 31, 32 to prevent drip at the outlet. In a modification the member 30 may be similarly secured to the cylinder instead of the piston which is then of solid construction and the outlet is attached to the cylinder. The pump piston may be actuated manually or by a compressed air motor and the outlet pipe may be fitted with a manually-operated valve.
Patent GB-789970-A (GB)
Title: Improved heat exchanger of the regenerative type
Inventor: PARRIS CYRIL WRIGHT
IPC: F28D19/04
Filed: 1953-02-04
Abstract: 789,970. Thermal regenerators &c. GREEN & SON, Ltd., E. May 3, 1954 [Feb. 4, 1953], No. 3139/53. Class 64(1) Heat absorbing elements 4 travelling through a partition 10 separating two fluid streams, e.g. hot gas and air, so as to transfer heat from one stream to the other, consist in plates so attached to an endless conveyer 1 as to form flaps which lie close together like the leaves of a book as they pass through the partition. In the form shown, the plates 4 are pivoted to chains 1 or bands passing over sprocket wheels 2 or drums. Seals 8 are provided on the partition 10. The plates 4 change their relative positions when passing over the sprocket wheels or drums, so that adherent dust is released. This action is assisted by a trip or stop 9 which causes the elements to lift or vibrate. Horizontal rails 7 prevent the chains from sagging.
Patent GB-1116601-A (GB)
Title: Polyphase electric circuit breakers
Inventor: ATHERTON THOMAS GEOFFREY FENTO
IPC: H01R11/32
Filed: 1965-01-26
Abstract: 1,116,601. Automatic circuit breakers. DORMAN & SMITH Ltd. 10 Jan., 1966 [26 Jan., 1965], No. 3289/65. Heading H1N. In a polyphase circuit breaker the path of each phase current is divided into a plurality of parallel divisions each including its own set of contacts each path being provided with thermal and/or electromagnetic tripping means arranged to release the contacts in all the divisions. As shown the input and output terminals of a nine-pole circuit breaker are connected together in groups of three to form a three-phase breaker. Each pole (Fig. 3 not shown) includes a pair of contacts (10), (12), the movable contacts (12) of all poles being carried by a common carrier actuated by a conventional spring-loaded toggle mechanism in the centre pole and held closed by a latch (17). Each pole further includes an electromagnet (22) and a bi-metal (21) each arranged, on overload, to pivot a common trip bar (20) extending through all poles to release the latch (17) and open all the contacts (10, 12).
Patent GB-1125183-A (GB)
Title: Apparatus for dyeing carpets and other fabrics
Inventor: WILFORD ERNEST
IPC: D06B17/06
Filed: 1966-01-25
Abstract: 1,125,183. Textile treating apparatus. BRADFORD DYERS' ASSOCIATION Ltd. 24 Jan., 1967 [25 Jan., 1966], No. 3339/66. Heading D1L. Apparatus for dyeing fabrics in long lengths comprises a dye bath 5, a steaming chamber 8 in which the fabric is steamed while travelling in loops and means for leading the fabric from the bath 5 upwards therefrom to enter the upper end of the steaming chamber, the dye bath 5 being carried by a support 17 that is vertically adjustable so that the vertical distance between the dye bath and the upper end of the steaming chamber can be adjusted in accordance with the nature of the fabric. Preferably provision is made for rapidly heating the fabric between the dye bath and the steaming chamber e.g. in chamber 7 heated by steam coils 44 and' exhausted by a fan 43 to cause a current therethrough. The dye bath receives dye liquor from a reservoir via a pump and means are provided for controlling the delivery of liquor responsive to the level in the dye bath (Fig. 3, not shown). Further, the level at which the liquor is maintained in the bath can be varied.
Patent GB-1156293-A (GB)
Title: Machine Tool with Automatic Tool Changer
Inventor: OLLEARO GEORGIO
IPC: B23Q5/00
Filed: 1966-08-31
Abstract: 1,156,293. Tool changes in machine tools. ING. C. OLIVETTI C., S.p.A. 31 Aug., 1966 [2 Sept., 1965], No. 3381/69. Divided out of 1,156,291. Heading B3B. The subject matter is as described in the parent Specification but the claims are directed to a machine tool with an automatic tool changing device having a frame, a spindle, a tool storage magazine provided with a series of tool storing cells, each adapted to store a tool secured to a corresponding tool support, drive means for displacing the magazine to locate a selected tool in a work station to be successively secured to the spindle, each tool support having a recess normally engaged by a locking member, a control element on the frame adapted to engage the locking member when located in the work station, the member being so shaped as not to interfere with the control element during the displacement of the magazine, and means to operate the control element for causing the locking member of the located tool to be disengaged from the recess of the tool support.
Patent GB-383262-A (GB)
Title: An improved electric water rheostat
IPC: H01C10/02
Filed: 1931-02-03
Abstract: 383,262. Liquid resistances. YASUKAWA DENKI KAISHA, Ltd., 2346, Fujita, Yahata-shi, Fukuoko, Japan. Feb. 3, 1931, No. 3474. Convention date, Feb. 20, 1930. Void [Published under Sect. 91 of the Acts]. [Class 37.] In a water rheostat the difference in resistance in the extreme positions between fixed and movable electrodes is made as great as possible by arranging the electrodes in an insulated tube so that a layer of hot water is situated adjacent to the fixed electrode, the remaining water being cooled. In the construction shown, a pair of insulated tubes 2 are arranged within an electrolytic bath 1, the upper ends of the tubes projecting above the surface of the liquid. The upper half of each tube 2 is surrounded by an outer tube 3 joined at its lower end to the tube 2 and communicating with the interior by means of a ring of holes 4. The upper ends of the tubes 3 are below the surface of the water. Just above each ring of holes 4 is arranged a fixed electrode 5. Electrodes 6 are movable vertically by means of a rod 7 and lever 8 and are arranged so that in their lower position they are situated at the lower ends of the tubes 2. The electrolyte in the bath 1 is cooled by pipes 9. Cooled electrolyte flows into the tubes 2 through the holes 4, so that the parts of the tubes 2 below the holes 4 are filled with cooled liquid, whilst the liquid in the parts above the holes 4 is isolated from the outside liquid and is at a higher temperature. When the movable electrodes 6 approach the fixed electrodes 5, the resistance becomes very low on account of the higher temperature of the electrolyte.
Patent GB-1101801-A (GB)
Title: Mounting arrangement for basket of centrifugal strainer
IPC: D06F49/06
Filed: 1965-01-27
Abstract: 1,101,801. Centrifugal strainer. WESTERN STATES MACHINE CO. 27 Jan., 1965 [19 May, 1964], No. 3584/65. Heading BID. The perforated basket 11 of a vertical centrifugal strainer is rotated by a belt drive 16 from rigidly mounted motor (13) to basket shaft 18 and is resiliently mounted by three angularly spaced assemblies 23, each connected on one side to rigid base 24 and on the other side to bearing housing 22, which extends between rotating shaft 18 and hub 25 and engages the shaft through bearings 28, 29, respectively above and below the centre of gravity of basket 11. Each assembly 23 comprises fixed lug 40 through which extends spindle 35 supported therein by rubber sleeve 52 and rubber washers 53, 54, which deform over tapered washers 55, 56 to resist relative horizontal and vertical movements of spindle 35 in lug 40 caused by imbalance basket gyration. Nut 50 may be tightened to vary the rigidity and natural frequency of the mounting to avoid resonance. Lugs 40 are on a plane with drive pulley 17, so oscillation is about the pulley centre which reduces undue stressing of belt 16. Slurry is delivered by tube to bottom of basket.
Patent GB-809885-A (GB)
Title: Radio compass employing loop sensing device
IPC: G01S1/02
Filed: 1957-02-01
Abstract: 809,885. Phase-sensitive circuits. BENDIX AVIATION CORPORATION. Feb. 1, 1957 [Feb. 17, 1956], No. 3666/57. Class 38 (4). [Also in Group XL (c)] A radio compass (see Group XL (c)) includes a radio-frequency or an audio-frequency phasesensitive circuit to provide a D.C. output signal which is positive or negative depending on whether waveform, Fig. 9 (d), or Fig. 9 (e), respectively (or their detected equivalents) is present at the input. Radio-frequency circuit (see Figs. 6 and 9). A ten c/s voltage (see Fig. 9 (b)) is applied at terminal 53 and the receiver, i.f. output at terminal 40; on the positive-going half-cycles of the 10 c/s voltage the positive-going excursions of the receiver output are detected and vice versa, the circuit output being averaged over the long time-constant of resistor 44 and capacitor 55. Audio-frequency circuit (see Figs. 7 and 9).- The receiver second detector output is applied at terminal 60 and the ten c/s. voltage at terminal 64; when the input is the envelope of waveform, (Fig. 9 (d), the average output at the grid of valve 77 over the long time-constant of resistor 44 and capacitor 55 is negative and when that of Fig. 9(e) positive. Valve 77 inverts this output to give the same sense at terminal 46 as in the previous circuit.
Patent GB-761675-A (GB)
Title: Improvements in or relating to non-linear electrical circuit arrangements
Inventor: WRIGHT PETER MAURICE
IPC: G06G7/20
Filed: 1954-02-08
Abstract: 761,675. Electric analogue calculating systems. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and BUCKINGHAM, J. Jan. 13, 1955 [Feb. 8, 1954], No. 3704/54. Class 37. [Also in Group XL (c)] In a circuit for deriving the square root of an input signal applied at terminal 1, a variable gain amplifier 2 feeds through linear amplifiers 4, 5 multiplicative discharge tube 7 connected to a comparator 10, the other signal being obtained from the input 1 over a linear amplifier 11. The resulting differential signal is applied as A.G.C. to the screen grid of tube 3. A signal proportional to the square root of the input is fed out from one of the amplifiers 4, 5 over a buffer amplifier 16. An amplified version of the input is compared in stage 10 with the signal which has been passed through the variable gain amplifier 2 and squared so that the control fed back varies the gain of stage 2 in such a manner that the output from it is proportional to the square root of the input.
Patent GB-657443-A (GB)
Title: Process for the manufacture of organo-silanes
IPC: C07F7/08
Filed: 1949-02-10
Abstract: Organo-silicon compounds of the general formula (CH3)3SiCH2OR, wherein R is an alkyl radical are prepared (a) by contacting chlorotrimethylsilane and a chloromethyl alkyl ether in the liquid phase with metallic sodium, or (b) by reacting chloromethyltrimethylsilane with an alkali metal alkoxide in liquid phase.  The sodium in method (a) may be in the molten state.  In the examples trimethylsilylmethyl methyl ether, trimethylsilylmethyl ethyl ether, trimethylsilylmethyl propyl ether and trimethylsilylmethyl butyl ether are prepared. Chloromethyltrimethylsilane is prepared by (a) the chlorination of tetramethylsilane or (b) the chlorination of any methylchlorosilane and the reaction of the chlorinated product with a methyl Grignard reagent.
Patent GB-904240-A (GB)
Title: Improvements in the spinning of polyacrylonitrile
Inventor: SCHMIDT WILHELM GEORG
IPC: D01F6/18
Filed: 1960-02-03
Abstract: In the manufacture of artificial filaments by spinning a solution of polyacrylonitrile, the solvent is regenerated by precipitating barium sulphate therein.  The treatment may be effected (1) by addition of a soluble barium compound, preferably barium thiocyanate to the spent solvent; (2) by addition of a barium compound, such as barium carbonate or barium hydroxide, whose solubility in polyacrylonitrile solvent, while low, is greater than that of barium sulphate; or (3) by passing the solvent through a bed comprising such a low-solubility barium compound.  The polyacrylonitrile solvent may be a solution of sodium thiocyanate and treatment may be carried out before or after concentration of this solution.  The treatment is preferably effected at a raised temperature, e.g. 35 DEG C. or above.