baber/WOPTO huggingface dataset:
Patent GB-529127-A (GB)
Title: Magnesium carbonate composition and process for the preparation thereof
IPC: C01F5/24
Filed: 1939-05-22
Abstract: 529,127. Magnesium carbonate; setting-compositions. PLANT RUBBER & ASBESTOS WORKS. May 22, 1939, No. 15210. Convention date, June 9, 1938. [Class 1 (iii)] [Also in Group V] Self setting normal magnesium carbonate is produced by decomposing magnesium bicarbonate in solution by vigorous agitation and controlled heating. The product is stated to be in the form of minute elongated crystals. The heating must not be above 120‹F. The solution of magnesium bi-carbonate is preferably obtained by gassing an aqueous suspension of calcined dolomitic material, the insoluble calcium carbonate so produced being removed. The agitation may be mechanical or by the introduction of fine streams of compressed air together with live steam when the solution is also heated. Seeding with previously formed crystals assists the reaction. After suitable reinforcing material such as asbestos fibre has been added to the suspension it is filtered and may be washed although any magnesium bicarbonate remaining in the slurry may be removed by the addition thereto of magnesium oxide or calcined dolomite. The filtered material is then poured into moulds and compressed if a more dense product is required. Setting proceeds on the application of heat at from 140 to 195‹ F. Heating may be by live steam passing through the space in which the moulds are placed. To assist setting 1 to 5 per cent. of magnesium oxide 1 to 2 per cent. of borate or 0.1 to 1 per cent. of sodium hydroxide may be added this serving to absorb any carbon dioxide given off by the setting product which tends to decompose slightly. After setting, which takes place without shrinkage, the blocks are dried in an oven at from 155 to 395‹F. to remove any uncombined water and then trimmed if necessary. The specific gravity of the product is stated to be from 14 to .19. The periods of precipitation, setting and drying are 1 to 1¢ hours, ¢ to 3 hours and 24 to 72 hours respectively.
Patent GB-195550-A (GB)
Title: Improvements in manually operated boat propelling mechanisms
IPC: B63H16/08
Filed: 1922-05-31
Abstract: 195,550. Wisniewski, S. May 31, 1922. Driving-arrangements for paddle-wheels. - A lever pivoted at the centre and rocked, see-saw fashion, by two persons sitting at the ends is employed to actuate a paddle wheel shaft. The paddle wheel shaft 52, Figs. 1 and 2, is driven by gearing 51, 48, the latter being on a shaft 49 and also meshing with a wheel 47 on a vertical shaft 46. This shaft carries a ratchet wheel 45 engaged by fingers 41, 42 pivoted to rods 39<1>, 40<1> respectively. The fingers are controlled by springs 58. The rods have springs 59, 60, and are reciprocated by racks and quadrants, pivoted at 22, 23, the quadrants being oscillated by pivoted levers 16, 17 coupled by levers 26, 27 with the see-saw member 30. The lever 30 is pivoted at its centre 31 and has back rests 35, 36. In a modification an extra shaft is provided between the paddle wheel shaft and its actuating gear and has two bevel wheels with clutches for providing for reversing, and the paddle wheel shaft is in three parts with two clutch connections so that when one clutch is thrown out only one paddle is revolved and the boat is steered on a new course.
Patent GB-529648-A (GB)
Title: Improvements in or relating to methods of generating pulses characteristic of sound and like waves
IPC: H03K7/00
Filed: 1939-05-24
Abstract: 529,648. Cathode-ray tubes; television. KOLSTER-BRANDES, Ltd., and BEATTY, W. A. May 24, 1939, No. 15361. Addition to 523,575. Drawings to Specification. [Classes 39 (i) and 40 (iii)] [Also in Group XXXIX] The arrangements described in the parent Specification for converting sound and other electrical signal waves into pulse form are modified by substituting for the shaped target of the cathode ray tube a screen with a shaped aperture situated in front of a target. In order to produce pulses with a trailing or leading edge of different amplitude from the main portion of the pulse as described in Specification 524,671, the trailing or leading edge may be produced by scanning an inclined slit in the screen and the main portion by scanning a shaped target placed in front of the screen and slightly overlapping the slit. The output of the target behind the slit may be amplified by using said target as a secondary emitting electrode of an electron amplifier. A train of pulses may be taken from the screen. Specification 511,222 also is referred to.
Patent GB-172344-A (GB)
Title: Fire and burglar alarm
IPC: G08B19/00
Filed: 1920-06-08
Abstract: 172,344. Compare, M., and Barlow, H. V. June 8, 1920. Electric alarm systems.-A fire alarm of the kind in which a protective circuit forms an arm of a Wheatstone bridge, so that balance is disturbed by altering the resistance of the protective circuit, is provided with a trip mechanism operated by an electromagnet and allowing the fall of a weight, the falling weight serving to close successively a number of alarm circuits, or to drive a generator supplying current to the alarm circuit. The protective network circuit X<3> forms one arm of a bridge, the other being formed by resistances R<1>, R<2>, R<3> so proportioned that normally no cirrent flows from a battery X through a coil B<2> pivoted between the pole-pieces of a horseshoemagnet D, and normally held in central position by springs (not shown). The coil carries an insulated contact A<3> connected to the battery X and positioned between two fixed contacts B. When balance is disturbed, the coil B<2> moves so as to close contacts A<3>, B and energize magnet T<2>, which moves a trip lever H and allows the descent of a weight carrying a contact Y adapted to contact successively with a series of fixed contacts K<1>, K<2>, K<3>. These contacts, and also the casing C of a dashpot controlling the fall of the weight, are connected as shown to the battery X, so that alarm devices J<1> - - J<4> are operated successively. J<1> - - J<3> may be explosive, or may be lamps orother indicators located outside the building. The final alarm J<4> is preferably a bell which continues to ring. The protective circuit may comprise lines of conducting paint, for example across window panes, and may include contacts operated by temperature changes. In a modification, the alarm circuits are not energized from battery X, but from a generator driven by a falling weight released simultaneously with the release of the contact-closing weight shown, and the magnet D may form the field-magnet of the generator.
Patent GB-155250-A (GB)
Abstract: 155,250. Johnson, L. E., Erickson, E., and Peterson, O. T, Dec. 12, 1919, [Convention date]. Sewing-machines; presser-bars with periodic control.-Relates to presser-bar mechanism in which a presser-bar 22 is slidingly supported in a lever 28 and is urged towards the work by a spring 38 as described in Specification 775/14. The invention consists in the provision of an adjustable and resilient abutment 47 with which the arm 37 of the presser-bar contacts when it is lifted from the work. The abutment ensures that the presser-bar, when lifted, is not tilted in its sliding support, and is therefore free for the spring 38 to press the bar lightly on to the work. The abutment carrier 41 is clamped upon a rod 14 : the abutment itself is pivoted at 44 and is urged forwardly by a spring 48, its movement being limited by the adjacent faces of the carrier and the abutment.
Patent GB-240241-A (GB)
Title: Improvements in travelling supports for curtains and the like
IPC: A47H15/02
Filed: 1924-06-27
Abstract: 240,241. Broughton, T. W. D. June 27, 1924. Clips, spring-wire. - A curtain runner comprises a U-shaped member c with one leg a terminating in an eye &c. a<1> for securing to the curtain, the other leg b being bent back up in itself to form a resilient hump b<2> extending towards the leg a. A roller f may be provided. The leg a may be extended upwardly and terminate in a hook or pin to support the curtain heading. According to the Provisional Specification, the ends of each side of the runner may be formed with hooks or loops to which the curtain may be secured.
Patent GB-130209-A (GB)
Title: Method of Preparing Explosive Fuel Mixtures and Operating Internal-combustion Engines therewith.
Inventor: DEPPE WILLIAM PHILLIPS
IPC: F02M21/00
Filed: 1918-09-25
Abstract: 130.209. DeppÚ, W. P. Sept. 25, 1918. Spray carburettors; vaporizers, external. - A highly heated homogenous fixed gas or gaseous mixture is supplied by the carburettor and heater shown in Fig. 1, the dimensions being so chosen that the desired temperature is obtained. Highly heated air from inlets 5, 8 passes the fuel nozzles 3, 4 of a carburettor such as is described in Specification 11222/15, having a Venturi tube 6 and a. throttle valve 10, the throttle opening being always central and substantially circular. The resulting mixture may have 15 to 70 parts of air to one of fuel, according to speed, load, and throttle opening. The mixture passes to a heater such as is described in Specification 11943/15, comprising a rotary mixer 12 and an annular conduit 14 heated by means of a bulb 17 and a jacket 15 supplied with exhaust bv pipes 22, 19 from the exhaust pipe 20. The mixture conduit leading from the heater 14 to the cylinders is alternately rounded and flattened in section, the rounded parts 24, 27 being constricted and the flattened parts 25, 28 being enclosed in heating jackets 29, 30 in communication with the exhaust manifold. Ina modification, the mixture is progressively heated, preferably by connecting heating-jackets such as 30, 29, 15 so that the exhaust passes through each in turn.
Patent GB-171128-A (GB)
Title: Improvements in or relating to hinges for the hoods of vehicles
IPC: B60J7/12
Filed: 1920-06-09
Abstract: 171,128. Exsteen, A. June 9, 1920. Securing flaps in a given relative position.- The pivoted members 1, 2 of a stay-arm for the hoods of vehicles comprises a spring-pressed pin 6 on the arm 1 which is adapted to engage a recess 10 in an extension of the arm 2 so that these members may be secured in the aligned position. The locking-pin has a flange 7 engaged by a spring 5 housed in a cover 4 on the member 1. The pin has a milled nut 14 on its outer end for readily disengaging the pin from the recess in the member 2 when required. The extension 11 of the member 2 has a bevelled recess extending from one edge to the recess 10 so that the hood may be forced open with the hinge members in the aligned position. Reference has been directed by the Comptroller to Specifications 514/98, [Class 108, Road vehicles], 23676/05 and 5053/06.
Patent GB-905630-A (GB)
Title: Improvements in and relating to a method and apparatus for the preparation of cytological or other specimens
IPC: G01N1/42
Filed: 1959-05-07
Abstract: 905,630. Drying tissue specimens. THAINE, R. May 7, 1959, No. 15666/59. Class 49. [Also in Group XIII] A cytological specimen to be freeze-dried is placed in a relatively massive dish 6 of copper which is supported on a metal table 3 let in a working bench 1 by a nylon pot 5 which accommodates an electric heater 7 and a temperature indicator thermocouple 9. The specimen is frozen by pouring liquid nitrogen into the dish before placing an inverted glass jar 2 over the table 3 such that sealing between table and jar is effected by an 0-ring 4. Liquid nitrogen is poured into a cup-portion 2a of the jar and a vacuum pump 16 operated to withdraw the atmosphere from within the jar via a connection 11, extending through the table 3, and a nylon extension 14. A connection 12 for entry of a vacuum gauge and a connection 13 for the introduction of a fixative such as formalin or ethyl alcohol also extends through the table. A metal dam-ring 15 press-fitted in a slot in the table 3 prevents nitrogen from overflowing from the dish on to the ring 4. Any lubricant vapour from the pump is condensed on the surface of the jar portion 2a between the mouth of the extension 14 and the specimen. When drying is completed a fixative is admitted through the connection 13 and the heater 7 is actuated to drive off excess fixative. The dried specimen may be embedded in paraffin wax introduced into the dish 6 and melted by the heater 7.
Patent GB-739806-A (GB)
Title: Improvements in the formation and wrapping of articles
Inventor: ROSE ALFRED GERMAN
IPC: B65B9/06
Filed: 1952-06-21
Abstract: 739,806. Wrapping-machines. ROSE BROS. (GAINSBOROUGH), Ltd. Aug. 27, 1953 [June 21, 1952], No. 15687/52. Class 94 (1). [Also in Group V] ' In a machine in which blocks of ice-cream or other plastic material are enclosed in succession in a travelling web of wrapping material which is folded around the blocks to form a tube which is then collapsed and secured between adjacent blocks, a series of blocks 1 are cut simultaneously from rods 2 extruding from nozzles 3 by a knife 4 arranged to move in the direction of extrusion at a somewhat greater rate so as to separate the blocks from the rods and move them forwardly along a platform 6. The blocks are transferred from the platform to a belt conveyer 7 by a rake 8 reciprocating in synchronism with the knife, and the conveyer delivers the blocks in close file to a platform 81 where a stop member 9 is provided to position the leading block in the path of movement of pushers 18 on an endless chain 17. The pushers feed the blocks down an inclined plate 21 so that they are deposited in spaced succession on the web of wrapping material which is drawn over a supporting plate 23, the wrapping operations being completed by mechanism as described in Specification 739,805.
Patent GB-278059-A (GB)
Title: Improvements relating to electric switches
IPC: H01H71/24
Filed: 1926-06-22
Abstract: 278,059. British Thomson-Houston Co., Ltd., Trencham, H., and Hamlyn, W. P. June 22, 1926. Automatic circuit-breakers.-An overload tripping device comprises a laminated horse-shoeshaped magnetic core 12 partly surrounding a fixed conductor 6 spaced from but fixed to a panel of insulating material 4, so that the middle portion of the core is between the conductor and the panel, the core being adapted to actuate a pivotally-mounted, preferably laminated, armature 17 to effect the tripping of the switch. The core 12 is bolted to a frame 14 carrying a pivotallymounted lever 18 to which the armature 17 is secured, one end of the lever 18 being attached to an adjustable spring 21 biassing the armature to the unmagnetized position, the other end of the lever being provided with a bent portion 20 adapted to engage a tripping trigger 10 when the armature is drawn up. Specification 19498/00 is referred to.
Patent GB-233190-A (GB)
Title: Improvements in and relating to steam boilers
IPC: F22B13/00
Filed: 1923-10-29
Abstract: 233,190. Hawley, C. G. Oct. 29, 1923. Water chambers in fire-boxes and flues; composite boilers-The combustion space or furnace of a boiler is divided vertically by auxiliary heating elements having large, heating surfaces relativelv to their cross-sectional area, the elements being in direct communication with one another at their lower ends and connected to longitudinal steam drums at their upper ends. Triangular elements s<2>, Fig. 1, have upper longitudinal drums r<2> and open at their lower ends intc a transverse connecting pipe or drum t<2>. The elements are arranged in the combustion cham. ber of a water-tube boiler having a side furnace the drums r<2> being connected to the boiler drums. The drums 43, Figs. 3 and 4, of the rectangular elements 42 open into cross headers 44 joined tc the headers 45 of the boiler. The transverse pipe or header 50 at the bottom of the elements is connected to the drums by downtake pipes 51. Specifications 5268/91, 137,093 and 218,492 are referred to.
Patent GB-706246-A (GB)
Title: Telecommunication station equipment
IPC: H05K7/18
Filed: 1952-06-23
Abstract: 706,246. Exchange equipment. SOC. ANON. DE TELECOMMUNICATIONS. June 23, 1952 [June 21, 1951 ; Dec. 28, 1951], No. 15823/52. Class 40 (4) Each bay of a rack for station or exchange equipment comprises two hollow uprights supporting shelves for blocks of apparatus, runways for jumpers and flexible connections between bays being provided adjacent apertures 15 in the uprights, the uprights enclosing formed cables for interconnection between apparatus in the same bay. The left-hand bay in Fig. 5 carries 24 intermediate 2-wire repeaters and the right-hand bay carries an equal number of terminal repeaters, whereby service can be provided on the ordinary and phantom circuits of 8 quads. The components such as transformers and balancing networks serving several circuits are arranged near the runways. The repeaters are arranged in symmetrical blocks 7, 8 each corresponding to one direction of amplification. The valves 10 and U-links 11 project through the normal cover plate 9 which bears on the shoulders of the U-links. The U-links contain branch sockets. Fig. 6a (not shown) for telephone connections, Fuse panels for D.C. and A.C. supply are provided at 16 and 75. A telephone instrument is carried by a plate 15<SP>1</SP> covering the runway 15. The block 17, Fig. 7, corresponding to one quad is connected with the sockets of the cable termination 14 by a joint block 18. Circuits end in strips such as 23, 24 which can be connected by short soldered wires 25. A vertical runway 26 is provided for flexible connection or jumpers coming to the strips. A panel 34, Fig. 9, includes push buttons 78 and lamps 79 for ascertaining if a line is in use. A bay equipped with apparatus for supplying carrier currents of echeloned frequencies as used for v.f. telegraphy contains a pair of oscillators in each unit, one oscillator being in reserve and being switched in automatically on failure of the other.
Patent GB-439175-A (GB)
Title: Improvements in or relating to the stabilization of ships
IPC: B63B39/08
Filed: 1934-05-28
Abstract: 439,175. Minimizing rolling and pitching. BAZE, W. L., 29. Rue Tronchet, Paris. May 28, 1934, No. 15857. Convention date, May 31, 1933. [A Specification was laid open to inspection under Sect. 91 of the Acts, Nov. 28, 1934]. [Class 113 (i)] The movement of the ship through the water is utilized to minimize rolling and pitching. To this end, a pair of conduits 19 are arranged symmetrically on either side of the central fore-and-aft line of the ship with their forward mouths facing in the direction of travel of the ship. Fluid entrained by the movement of the ship emerges at downwardly directed jets at the aft ends of the conduits. Valves operated by pendulum &c. devices in accordance with the roll of the ship alternately close the conduits and the alternating jets thus produced tend to quench rolling. Alternately the hinged mouth pieces 22 may be in turn closed by the pendulum. Should the speed of the ship be slow a propeller or pump 27 may be employed to actuate the device. The device suitably modified may be employed to quench pitching.
Patent GB-183021-A (GB)
Title: Improvements in or relating to automatic machines for feeding fibrous materials to carding engines or other preparing machines
IPC: D01G23/04
Filed: 1921-06-09
Abstract: 183,021. Walker, J. W., and Platt Bros. & Co., Ltd. June 9, 1921. Feeding carding-engines &c.-In an automatic hopper feeder having a spiked lattice delivering material into a scale which empties on to an horizontal lattice &c., the weighing box d, Fig. 3, is carried by weighted arms d<2> fulcrummed on knife edges. The arrangement is controlled by a cam plate e or equivalent device driven from the horizontal delivery lattice, the feed rollers of the carding-engine, or other suitable part. The bottom d<5> is secured by a catch f<1> to which is attached a sliding bar f<3> with a projection f<5> adapted to be engaged by a projection e<2> on the cam plate e to release the catch f<1> and allow the box to empty itself. When the full box descends into position to empty itself a projecting pin g on the box comes into position to be engaged by a projection j<1> on a pulley j carried by a pivoted bracket h<2> and allows a pivoted catch h on the same bracket to lock the box in position. The box also descends on to a lever i and through connecting links raises a lever i<4> out of a notch in a transverse bar m connected with the clutch driving the spiked lifting lattice, thus allowing the clutch to be thrown out. When the box has been emptied by the release of the catch f<1>, a toothed segment e<3> on the cam e engages a pinion k and turns a shaft k<2> to raise arms k<3> to close the bottom d<5> of the box. A cam part e<4> engages a projection h<4> on the bracket h<2> releasing the empty box and allowing it to rise into position to be refilled. An arm e<5> then engages an inclined lever and resets the transverse bar m, thus putting the clutch in and restarting the spiked lifting lattice. The lever i<4> falls into the locking-notch in the bar m. The pulley j on the bracket h<2> is driven by a band j<3>, a pulley j<4> controlled by a spring j<5> keeping the band tight and the bracket h<2> up to its work. The clutch through which the lifting-lattice is driven comprises a sliding half o Fig. 2, with a projection o<1> keyed to the shaft and a loose half n combined with a belt pulley n<1> with a part n<2> with a notch or depression for engagement with the projection o<1>. The half n is pressed up against a collar n<5> by a spring n<3>. The clutch is operated from the transverse bar m by a lever m<2> held by a spring m<4>. The movable bottom of the weighing box may be in two parts connected by links, so that both parts are locked by the catch f<1> and closed by the arms k<3>.
Patent GB-989916-A (GB)
Title: Motor vehicle steering columns
Inventor: KINGHAM CHRISTOPHER DIXON
IPC: B62D1/16
Filed: 1963-04-23
Abstract: 989,916. Motor vehicle steering columns. AUSTIN MOTOR CO. Ltd. April 10, 1964 [April 23, 1963], No. 15894/63. Heading B7H. The steering shaft 1 of a motor vehicle is journalled in a single bearing 2 carried by a steering column 3 having its lower end clamped in a rubber bush 4 compressed between domed plates 5, 6 secured to the footboard or floor structure 7 with an interposed sealing washer 11. The upper end of the column 3 is supported by a bracket (not shown) on the body structure. A flexible rubber coupling 8 connects the shaft 1 with a coupling 9 for attachment to a steering gear. A striker 10 is provided on the shaft 1 for actuating a direction indicator switch.
Patent GB-1203642-A (GB)
Title: Improvements in or relating to pressure diecasting
Inventor: CARR IRVING ARTHUR
IPC: B22D17/12
Filed: 1967-08-31
Abstract: 1,203,642. Casting-processes; extracting castings. I. A. CARR. 31 Aug., 1967 [31 Aug., 1966], No. 15945/69. Divided out of 1,203,641. Heading B3F. The invention relates in particular to the use of the machine for pressure-casting of metals as described in the parent Specification but the claims are directed to the fact that after injection of the metal by the piston 30 and the withdrawal of the mould half 10 so that the piston is wiped by the walls of the chamber 16, the piston is withdrawn to its initial position, as shown, to wipe it in the opposite direction by the chamber walls. At the same time as, or after the injection piston 30 is withdrawn, a ram 26 raises ejector pins 28 and valve 20 to eject the cast metal 32 from the mould half 12. After the relatively low pressure of injection, at a temperature not more than 50‹ F. above the arrest point, the metal in the mould 10, 12 is subjected to a gradual rise to the high pressure.