baber/WOPTO huggingface dataset:
Patent GB-505948-A (GB)
Title: Method for the production of oxygen baths by catalytic means
IPC: D06L4/12
Filed: 1938-07-07
Abstract: 505,948. Oxygen-evolving compositions. HEIM, M. L. July 7, 1938, No. 20116. Convention date, July 10, 1937. [Class 90] A product for making oxygen baths consists of a mixture of an oxygen-evolving compound, e.g. sodium perborate, sodium peroxide or sodium percarbonate, with sodium lignine sulphonate as a catalyst, preferably in a proportion equal to about 8 per cent. by weight of the per-salt.
Patent GB-1294783-A (GB)
Title: Improvements in or relating to electrolytic cells constructed for high circulation and uniform flow of electrolyte
Inventor: MARQUARDSON K F
IPC: C25C7/00
Filed: 1971-04-19
Abstract: 1294783 Electrolytic cells for electrowinning or electro-refining KENNECOTT COPPER CORP 19 April 1971 [24 Feb 1970] 20220/71 Heading C7B Electrolyte for a cell for electro-winning or electro-refining is fed through a pipe 18 having orifices along its length and closed at its lower end, through holes 12a in a removable or fixed baffle 12 of e.g. p.v.c. and, after passing between the electrodes, out through an adjustable pipe 20 in a weir box 19. The cell, which may be of concrete lined with p.v.c., may have perforated lead anodes and copper cathodes, for use in recovering copper from leach solutions. The tops of the electrodes are recessed to allow the flow of electrolyte.
Patent GB-499325-A (GB)
Title: Improvements in dough moulding or balling machines
IPC: A21C5/08
Filed: 1937-07-22
Abstract: 499,325. Dough - balling machines; variable-throw cranks. CHRISTIANSEN, E., and ERICSSON, C. O. July 22, 1937, No. 20275. [Class 87 (ii)] [Also in Group XXIV] In adjustable crank mechanism for imparting orbital movement to the cups of a dough-balling machine wherein each crank arm 14 is carried on a spindle 5 mounted eccentrically in a rotating head 1 on a driving shaft 9, the head 1 is raised on the shaft 9 to move the crank arm to stop orbital movement whereafter the head 1 and shaft 9 are simultaneously raised to lift the cups, and the head 1 and shaft 9 are simultaneously lowered and on continued downward movement of the head alone the crank arm is moved to give orbital movement to the cups. The cup-carrying frame is mounted on the crank arms. The spindle 5 carries a toothed wheel 6 in gear with teeth 8 on a sleeve 7 which engages helical teeth on the shaft 9. The head 1 is mounted on a sleeve 2 slidable and rotatable in a fixed bearing 3 and is raised and lowered by a cam-actuated lever 10. As the sleeve 2 is raised, there is at first relative axial movement between the sleeve 2 and the rotating shaft 9, so that the sleeve 7, which is keyed in the sleeve 2, is rotated and thus rotates the crank arm 14 to a position over the shaft 9 such that the cup frame ceases to have orbital movement. A flange 13 of a ring 11 on the sleeve 2 engages a shoulder or ring 12 on the shaft 9 to raise the shaft with the sleeve.
Patent GB-674755-A (GB)
Title: Improvements in and relating to the production of artificial protein fibres
IPC: D01F4/00
Filed: 1949-08-04
Abstract: Protein fibres soluble in dilute alkaline solutions are manufactured by extruding an alkaline protein solution into a coagulating bath containing at least one metal salt, stretching the resultant thread at least 50 per cent, but preferably 300-700 per cent, rendering the thread resistant to cold water by treatment in an aqueous bath containing a halogenated aldehyde, e.g. chloral, chloral hydrate, bromal, mono- and dichloracetaldehyde and water soluble halogen-substituted propionaldehydes such as 1 : 1-dibromopropionaldehyde, and drying the hardened thread, the entire process being effected in the absence of formaldehyde.  Stretching may be effected, if desired, in two stages, inside or outside the coagulating bath or in a subsequent identical or different coagulating bath which may be heated, if desired, to 40-70 DEG  C. Further stretching may also be effected after hardening.  Partial hardening of the thread with the halogenated aldehyde may be effected in the coagulating or subsequent coagulating bath and later completed in the subsequent hardening bath.  Treatment in the hardening bath may be effected while the thread is passed over rollers or with the thread in the relaxed condition by the procedure of Specification 565,011.  The hardening bath, which may be heated to 40-70 DEG  C., may also contain one or more metal salts, e.g. the sulphates of sodium or magnesium, aluminium acetate or calcium chloride.  The coagulating bath may contain the sulphates of sodium, magnesium or aluminium and sodium chloride, and, if desired, an acid, e.g. sulphuric acid.  Specified proteins are lactic, soya bean, peanut and castor bean proteins.  The fibres may be used as a soluble yarn in the production of effect textile materials; thus they may be twisted with wool or employed as a binder for twistless yarns which after knitting or weaving into fabrics may be treated with an alkaline solution to dissolve the protein fibres.  Numerous examples are given.  Specifications 547,583, [Group IX], and 550,525 also are referred to.
Patent GB-935040-A (GB)
Title: Oil-bath air cleaners
Inventor: CREMONA JOSEPH KENNETH ANGUS
IPC: F02M35/026
Filed: 1961-06-06
Abstract: 935,040. Centrifugal separators. GENERAL MOTORS Ltd. June 6, 1962 [June 6, 1961], No. 20361/61. Class 23. [Also in Group XXVIII] An oil-bath air cleaner for a three-cylinder internal-combustion engine, comprises upper and lower casings 1, 2 in which are housed filter elements 6 and 9, an annular outlet chamber 11 formed by the upper portion of the casing 1 having extending thereinto an outlet pipe 10 the inner end of which lies in a vertical plane which is at an angle, preferably 60 degrees, to a vertical plane in which lies the axis of the outlet pipe, and the outer wall of the outlet chamber 11 having thereon a flat 12 which lies symmetrically to either side of a vertical plane which is angularly spaced, preferably by 90 degrees, from the vertical plane in which lies the axis of the outlet pipe, the flat 12 extending upwardly and inwardly at an acute angle, preferably 15 degrees, to the vertical. The casings 1, 2 are detachably interconnected by a clamp ring 3 and a bolt 4, the lower casing 2 forming an oil reservoir 5. The filter elements 6 and 9 are each preferably in the form of an annular mass of woven wire mesh. Air enters the filter through an air inlet pipe 7 in which is secured a vane 16 for imparting a whirling motion to the air for removal of the heavier particles of dirt, drops of oil being entrained in the air during its passage over the oil in the reservoir to the filter elements. The upper end of the flat 12 preferably continues at an angle of 40 degrees to the vertical, Fig. 3 (not shown). An annular plate 14 covers the filter element 9, the plate having three arcuate slots therein, Fig. 4 (not shown), forming a substantially annular opening for the passage of filtered air from the filter element 9 into the outlet chamber 11, the width of the slots being substantially one-third that of the width of the annular chamber 11 and the slots being equi-spaced from the walls of that chamber.
Patent GB-185923-A (GB)
Title: Improvements in high frequency intervalve transformers and in the method of constructing the same
IPC: H01F41/06
Filed: 1921-07-29
Abstract: 185,923. Greenslade, A. E. July 29, 1921. Transformers. - A high-frequency intervalve transformer is made by drawing the primary and secondary wires each through a bath of insulating wax or varnish, then through an eye, and then winding the two wires side by side into a flat coil a, Fig. 1, with the ends a<1>, a<2> of the primary winding, and a<3>, a<4> of the secondary, winding left out for connection to terminals or to the corresponding ends of similar coils. The wires may be wound on flat rings with separate side rings carried by a rotating spindle, or rings b<2> of the form shown in Fig. 4, may be used when it is desired to wind two or more transformers simultaneously on the same spindle. In another arrangement, Fig. 6, the wires are wound in a wave-like form around removable pins b' mounted on the circumference of a ring b<3>. After the winding operation the transformers are removed from the rings, and may be given another coat of wax.
Patent GB-1045866-A (GB)
Title: Screening apparatus with eccentric weight
Inventor: HUNTER WILLIAM ALAN
IPC: B07B1/38
Filed: 1964-05-15
Abstract: 1,045,866. Sifting apparatus. PETTIBONE MULLIKEN CORPORATION. May 15, 1964, No. 20449/64. Heading B2H. Sifting apparatus comprises a screen frame 22 supported above a base frame 12 so as to be free to gyrate in a horizontal plane about a central position towards which it is biased, a drive shaft 100 connected at its lower end to the base frame so that it can pivot, and connected at its upper end to the screen frame, by a bearing having an outer race fixed relatively to the frame 22 and an inner race spaced from the drive shaft 100 by a resilient sleeve 124, an eccentric weight 150 secured to the upper end of the drive shaft, and a motor for rotating the shaft. In the Figs., the screen 20 is secured on frame 22, and frame 22 on a ledge 28 within hopper 24, by brackets 32 and bolts 30. The hopper is supported on frame 12 by four posts 46, each attached to frame 12 by a rubber bush mounting 52 (Fig. 5, not shown) permitting small deviation of the post from the vertical, and attached to webs on the hopper by a rubber bush mounting 50 permitting lateral movement between the hopper and the post. The lower end of shaft 100 is supported by bearing 102 on pin 106 through a rubber bush 116 in compression, and the upper bearing 134 is secured to a cross-bar 132 on the hopper. Shaft 100 is driven by pulley 168 and belt 167 driven by motor 160 on frame 12.
Patent GB-421745-A (GB)
Title: Improvements in fuel injection devices for internal combustion engines
IPC: F02M59/02
Filed: 1933-07-20
Abstract: 421,745. Fuel-injection pumps. BISCHOF, B., 16, Tobelstrasse, Winterthur, Switzerland. July 20, 1933, No. 20527. Convention date, July 20, 1932. [Class 102 (i)] In a fuel-injection pump, of the type in which the pump plunger controls the suction and delivery ports and injection is effected under the action of an accumulator plunger c, Fig. 1, which is loaded by liquid in a space m, the space m communicates with an auxiliary space f, in order to adapt the pump for both high and low speeds. Communication between the spaces m and f may be controlled by a cock v, operated either manually or automatically. At high speeds the cock v is closed, and at low speeds the cock v is opened in order to reduce the injection pressure. A vent screw i is provided at the highest point. In a modification, Fig. 3, the space m is in constant communication with the space f through a nozzle g. The space f may be formed by a closed bell surrounding the chamber m, or, as shown, the space f may enclose the heads of two or more pumps and form the suction chamber, being supplied with fuel at the highest point and communicating with the suction parts p<1> by passages p.
Patent GB-640938-A (GB)
Title: Improvements in lock nuts and their manufacture
IPC: B21K1/70
Filed: 1947-07-30
Abstract: 640,938. Locking nuts. STOVER LOCK NUT & MACHINERY CORPORATION. July 30,1947, Nos. 20605 and 20606. Convention dates, Oct. 9, 1945. [Class 89(i)] [Also in Groups XXII and XXX] Solid nuts are rendered self-locking by compressing opposed faces 336, 337 at the free end to a depth of from to ¢, to reduce the bore across that diameter by an amount equal to the fit tolerance plus from 0.001 to 0.01 inch. The diameter at right angles is increased by a corresponding amount. The resulting locking torque in inch pounds is stated to be from 115D<2-4> to 820D<2-5> where D is the bolt diameter. The upper face of the nut is knurled at 341 to indicate that the bore at this end is oval.
Patent GB-148791-A (GB)
Title: Submarine tower barges for raising sunken vessels
IPC: B63C7/06
Filed: 1920-07-10
Abstract: 148,791. Chamberlin, N. F. April 8, 1918, [Convention date]. Sunken ships, raising. - A submersible barge, Fig. 2, for raising sunken ships is divided longitudinally and transversely by bulkheads, and carries two latticework cable - towers and a controlling- tower. The sinking of the barge is effected by admitting water through a sea-cock 15 into a distributing- compartment, whence it is passed through the sluice valves 25, 26 to the fore and after compartments of the hull. The cock and sluices are operated from the top of the tower 20, which is of such a height as to remain above water on the submersion of the barge. Openings 70, Fig. 3, and air-pipes 71 leading to the top of the tower permit the escape of air. Permanently-closed air chambers 2, 3, Fig. 2, are situated near the bow and stem of the barge, and closed air tanks 43, 53 are located within the towers. To raise the apparatus water is pumped out through the pipe 19, the trim being regulated by the valves 25, 26. Fig. 3 shows the method of attaching a pair of barges to a sunken ship. The barges are spaced apart by the adjustable cross-ties 37, 38, and sunk one on each side of the ship. Cables 40 previously passed under the ship are carried up the towers in cable-beds 39, 49, 50, Fig. 2, extending over the tops of the towers and clamped firmly therein. The cable towers and control tower may be made extensible for work in varying depths.
Patent GB-725771-A (GB)
Title: Improvements in auxiliary starting carburetters
IPC: F02M1/04
Filed: 1953-07-24
Abstract: 725,771. Spray carburetters. SOLEX. July 24,1953 [Aug. 5, 1952], No. 20629/53. Class 7(3). In an auxiliary starting carburetter including a rotatable valve 11 controlling the richness of the starting mixture and capable of occupying at least one intermediate position between its closed position and its maximum richness position, a member rigid with the valve 11 carries at least one projection capable of coming into contact with an element adjustable in position by thermosensitive means to prevent opening of the valve element beyond said intermediate position when the temperature of the thermosensitive element is above a predetermined value. The starting carburetter, preferably incorporated in the main carburetter, comprises a well 4 feeding rich mixture to a passage 6 opening through a port 8 into a chamber 7 where the mixture is diluted with air and fed to the intake pipe through a passage 9, the ports 8, 9 being controlled simultaneously by a valve 11 rotatable by a lever 13. A bimetallic strip 22 co-operates with notches 19, 20, 21 on the lever 13 to limit the amount of rotation of the valve 11, and hence the richness of the starting mixture, according to temperature. At extremely low temperatures the strip 22 is outside the path of all the notches 19 .. 21 to allow the valve 11 to open fully for maximum richness. At intermediate temperatures, e.g. -10‹ C., + 10‹ C. and + 30‹ C., the strip 22 is situated to engage the notch 19, 20 or 21 respectively and prevents the valve 11 being rotated beyond a predetermined intermediate position so that appropriate starting mixtures for these temperatures are provided. The strip 22 may be replaced by a bi-metallic coil controlling a slidable stop which contacts the notches 19 .. 21. The bi-metallic element may be subjected to atmospheric temperature or the temperature of the engine cooling water or lubricating oil.
Patent GB-655903-A (GB)
Title: Improvements in or relating to locks for lifts
IPC: E05B65/00
Filed: 1948-08-06
Abstract: 655,903. Locking and unlocking lift cages and doors. CARTA, V. Aug. 6, 1948, No. 20864. Convention date, May 30, 1942. [Class 78 (iii)] A safety lock for lift'doors wherein means other than spring means is used for operating the electrical safety switch and locking the latch, and having a member operable only from within the lift shaft for preventing the gates being opened while approaching or passing a floor. In one embodiment, Fig. 1, a latch 1 pivoted at 8 operates the electric bridging contact 9 by a lever 3 pivoted at 12. When the latch is opened to chain-line position the bridge 9 drops away from contacts 11 by its own weight. In the closed position of the latch a pendulum 2 sets itself vertical to lock the latch. On arrival at a floor a ramp 4 in the shaft engages a roller 6 on a lever 5 coupled to pendulum 2 by a shaft 13 so as to withdraw the pendulum. In the embodiment of Fig. 2 a bridge contact 20 is mounted directly on the latch 1 and bridges contacts 22 in the closed position. The latch is locked by a sliding catch 15. A shoe 17 has a face 18 engaging a roller 19 on catch 15 to withdraw the catch and faces 16 and 16<1> to press home the catch upon leaving the floor, Fig. 3. A pawl 14 is operated only from within the shaft to lock the latch while passing a floor and is suitable for automatic operation.
Patent GB-1498732-A (GB)
Title: Tennis ball
IPC: C08L21/00
Filed: 1975-05-16
Abstract: 1498732 Tennis ball PATENTEX SA and CIBA-GEIGY AG 16 May 1975 [18 May 1974] 20923/75 Heading A6D. A tennis ball includes a hollow spherical shell formed of natural or synthetic rubber, at least a spherical layer of which contains a homogeneously distributed particulate filler, the filler comprising 70-100% by weight finely powdered aminoplast resin having a specific surface area of at least 5 m<SP>2</SP>/g (ranges of 25-120, 30-120 and greater than 50 m<SP>2</SP>/g are specified) and 0-30% by weight other filler, e.g. kaolin, the weight ratio of filler: that part of the rubber containing filler being in the range 15:100-50:100 (ranges of 15:100-35:100 and 30:100-50:100 are specified). The aminoplast resin may be urea/formaldehyde or melamine/formaldehyde or urea/formaldehyde modified by sulpho groups. The resin filler may be in the form of spherical particles of average diameter < 1000 A‹ (e.g. 500 A‹), agglomerated into agglomerate particles of diameters in the range 7-15Á, e.g. 8-11Á. The rubber of the shell may be only natural rubber or a mixture of natural rubber and polybutadiene. The internal pressure of the ball may be atmospheric or superatmospheric. The ball may have a textile covering.
Patent GB-576524-A (GB)
Title: Improvements in or relating to gyroscopic instruments
IPC: G01C19/38
Filed: 1945-01-12
Abstract: 576,524. Gyroscopic apparatus. TAYLOR, J. A., and SPERRY GYROSCOPE CO., Ltd. Jan. 12, 1945, No. 20927/43. [Class 97 (iii)] An air jetting device 11 and a reaction block 12 are fixed to the outer gimbal of a gyroscopic instrument, whilst a cut-off device 13 fixed to the inner or rotor bearing gimbal differentially intercepts the jets 11a, 11b on departure of the two gimbal rings from a predetermined angular position, thus giving rise to a torque about the axis of the outer gimbal and a consequent precession of the gyro to restore the position. Caging mechanism as described in Specification 419,816 may be provided.
Patent GB-626956-A (GB)
Title: Radio distance measuring system
IPC: G01S13/78
Filed: 1946-07-13
Abstract: 626,956. Automatic phase-control systems. STANDARD TELEPHONES & CABLES, Ltd. July 13, 1946, No. 21012. Convention date, Aug. 11, 1945. Drawings to Specification. [Class 38 (iv)] [Also in Group XL (c)] In a pulse radar system means are provided for maintaining a locally generated pulse signal in coincidence with a received pulse signal. Pulses from a local generator are applied to a variable-delay circuit, the output of which is applied to two gate circuits. A fixed-delay circuit. is arranged between the output of the variable-delay circuit and one of the gate circuits. The received pulse signal i.s applied to the two gate circuits in parallel, the outputs of which are combined differentially and applied to a motor-control circuit which drives a motor, coupled to the variable-delay circuit. Thus, when the gate pulses lie symmetrically with respect to the received pulses, no signal is applied to the motor control. However, if the condition is not symmetrical the motor is actuated thereby varying the delay of the delay-circuit and restoring the system to a condition of symmetry. When the system is not following a pulse, the absence of any pulses in the output of the _gate circuits is used to cause a relay to switch a high-speed motor-control into the circuit so that the system searches until a fresh pulse signal is found. Specification 592,789, [Group XL], is referred to.
Patent GB-365117-A (GB)
Title: Synchronising arrangement for sound film apparatus
IPC: G03B31/00
Filed: 1930-07-11
Abstract: 365,117. Brakes. FREISS, H., 232, Friedrichstrasse, Berlin. July 11, 1930, No. 21017. Convention date, Sept. 17, 1929. Void [Published under Sect. 91 of the Acts]. [Class 103 (i).] A device for maintaining synchronism between soundreproduction and pictureprojection apparatus comprises means for varying the action of an eddy current brake, a rotary element of which is driven by one apparatus and a stationary element is influenced by the other apparatus, so as to restore lost synchronism. As shown in the Figure, a motor k driving the shaft h of the picture projector carries a copper disc r which is thereby rotated between the poles of an electromagnet q whose coil p is connected through a battery o to contacts resting on slip rings #, m. The ring f is on a shaft driven from the sound reproducing apparatus, of which a turntable a is shown driven by any suitable motor, and is connected to one end of a wire wound round a drum d on the shaft and terminating in a free end. The ring m mounted through insulation on the projector shaft h carries a finger g contacting the wire on the drum. In case of relative change of speed of the drum d and.finger g due to loss of synchronism the finger moves over the wire on the drum and varies the resistance in coil p of the magnet q and thereby the braking effect on the disc r so that synchronism is restored. In a modification, the magnet coil is controlled through a beam of light directed through aligned apertures in opposing discs driven respectively by the two apparatus, the beam falling on a photo-electric cell connected through a relay with the magnet coil. One of the discs has a radial slot and the slot in the other extends circumferentially with reducing cross section. Relative rotary displacement of the two discs due to loss of synchronism varies the quantity of light passing to the photo-electric cell which influences the magnet coil to restore synchronism. The arrangement is applicable to machines with sound recorded on a film.
Patent GB-1509624-A (GB)
Title: Disc brakes for vehicles
IPC: F16D65/095
Filed: 1975-05-17
Abstract: 1509624 Spot-type disc brakes GIRLING Ltd 29 April 1976 [17 May 1975] 21093/75 Heading F2E In a spot-type disc brake where a yoke 2 is slidably guided in grooves (not shown) in a stationary member 1 incorporating actuating means (e.g. including two pistons, one, 18 of which is shown), for reaction application of the indirectly-actuated friction pad assembly 6, the locating means 10 for locating the assembly 6 with respect to the yoke 2 also acts resiliently to bi-stable yoke 2 into engagement with "side" faces of the grooves, (preferably the radially outer faces). As shown, the locating means 10 comprise two pin portions 19 extending through openings in the backing plate of assembly 6 and through bores in lugs 28 of stationary member 1, a connector piece 21, and a compression spring 22 supported from connector piece 21 by a hooked pin to urge yoke 2 upwards. In Figs. 1, 2, (not shown), the connector piece is screwed directly to the yoke, spring 22 is omitted, and the natural resilience of the pin structure is utilized.