baber/WOPTO huggingface dataset:
Patent GB-380459-A (GB)
Title: Improvements in or relating to alternating current motors
IPC: H02K17/08
Filed: 1931-06-10
Abstract: 380,459. Alternating-current motors. GRAMOPHONE CO., Ltd., Hayes, Middlesex, and JOHNSON, A. H., 14, Francis Terrace, Upper Holloway, London. June 10, 1931, No. 16931. [Classes 35 and 38 (iv).] A variable condenser is arranged in series with the windings of an alternating - current motor of the inductiondisc type to enable a predetermined operating voltage to be maintained across the motor over a range of different supply voltages. The condenser 5 may have a number of tappings suitably selected for the different values of the supply voltages. As shown,- the motor is of the split-phase type with primary winding- sections 1, 2, 3 and with a condenser 4 arranged between the winding-sections 2, 3 ; a switch may be provided for changing the connection of the winding-sections 2, 3 from series to parallel arrangement. In the case of automatic talking machines where extra power is required during the period, when the lifting mechanism is in operation, automatic switching means may be provided whereby when the load on the motor varies the capacity of the condenser is changed.
Patent GB-600842-A (GB)
Title: Improvements in or relating to single phase transformers, chokes and the like
IPC: H01F30/10
Filed: 1945-07-04
Abstract: 600,842. Transformers; inductances. MULLER, H. July 4, 1945, No. 17017. [Class 38 (ii)] A single phase transformer, choke or the like, is provided with a number of positivelyspaced parallel flux paths a<SP>1</SP> disposed transversely relative to a common flux generating core a, the cross-section of each path a' being less than half the cross-section of the core a, so that an inner path a<SP>1</SP> will approach saturation before the core and magnetic flux will cross the intervening air gap or gaps to one or more of the outer paths a<SP>1</SP>. The air gaps may be produced by solid inserts of insulating material e located at one or both ends of the core a and, as shown, the transformer or choke may be formed of magnetic strip metal, the turns of which provide the parallel paths a<SP>1</SP>. Parts of the outer limbs may be arranged to 'carry additional windings g, h, whereby the saturation of those parts may be influenced separately. The strip assembly may consist of interleaved, oppositely directed, U-shaped portions, as shown, or a continuous strip, around a core consisting of a bundle of flat strips. In a modification, Fig. 6 (not shown), a choke core consists of an assembly of E-shaped laminations across the ends of which flat laminations are located transversely with their surfaces facing the ends of the limbs, with insulating non-magnetic inserts between the transverse laminations and a similar insert between the centre limb and the adjacent transverse lamination. Specification 585,927 is referred to.
Patent GB-847166-A (GB)
Title: Improvements in or relating to teleprinter systems
IPC: H04L1/00
Filed: 1958-05-28
Abstract: 847,166. Teleprinter systems. SIEMENS & HALSKE A. G. May 28, 1958 [May 28, 1957], No. 17039/58. Drawings to Specification. Class 40(3). A teleprinter having a relay operable to transmit signal pulse combinations includes means for causing the relay automatically to transmit pulses at regular intervals when the teleprinter is in its idle state, the associated receiver including means for giving an indication when neither idle-state pulses nor signal pulse combinations are being received. The invention is described as applied to a four-wire teleprinter circuit, the signalling characteristics of which are such as to preclude the use of a continuous D.C. signal. The idle-state signals comprise 20 millisecond pulses at 500 millisecond intervals in the example disclosed and are produced by controlling the transmitter relay by a pulse generator. At a receiver the pulses serve to hold operated a slow release relay so that a fault in the circuit or distant transmitter results in the release of the relay and is indicated by warning lamps controlled by the slow release relay via a chain of further relays. Simultaneously the pulse source is cut-off from the associated transmitter and the transmitting relay held to mark for a period so that the slow release relay at the distant transmitter is also released and the warning lamps lit. When a fault occurs, the signalling circuit may be left in either a mark or space condition. If left in the mark condition, the slow release relay releases directly. If left in the space condition, a slow operate relay operates and changes over the polarity of the supply connected to the slow release relay so that it releases in response to the continuous space condition. If, the circuit is in working order and a transmitter is set in operation, the transmitting relay is initially held to space and causes operation of both the slow operate and slow release relays at the distant receiver. The slow operate relay starts up the receiver motor and prepares a circuit for the receiver electromagnet. The relay also changes the polarity of the supply to the slow release relay as described above so that the relay now operates in response to mark signals and remains held during reception of normal signals. If, now a fault occurs during traffic, the relay releases (either directly in the event of the circuit remaining at space or via the slow operate relay in the event of the circuit remaining at mark) and causes the warning lamps to be lit.
Patent GB-239322-A (GB)
Title: Improvements in and relating to portable heat and cold retaining vessels for food
IPC: A47J47/14
Filed: 1924-07-16
Abstract: 239,322. Gardiner, W. A. July 16,1924. Cold and heat retaining vessels; refrigerators, domestic and like.-A portable heat-insulated box particularly adapted for serving out food in hospitals &c. is provided with a vertically sliding front door d having channelled edges f, Fig. 3, engaging guide strips g on the box, and with a centrally arranged shallow tank k for the reception of hot or cold water or ice. The base and back of the box are shaped at l to provide guides for the flanged base and back of the tank, and the front upper corner of the tank is chamfered off to accommodate a screw stopper m. A shelf or tray i extends across the top of the tank and other shelves or trays are supported on brackets h, h<1> on the walls of the box and the tank walls. The insulation c, e in the walls and door may be hair felt. The door has a handle o and the box is fitted with side handles n.
Patent GB-1040929-A (GB)
Title: Radial sealing arrangements for rotary piston internal combustion engines
IPC: F01C19/10
Filed: 1964-04-27
Abstract: 1,040,929. Rotary-piston internal combustion engines. KLOCKNER-HUMBOLDT-DEUTZ A.G. April 27, 1964 [June 14, 1963], No. 17279/64. Heading F1F. A radial seal for the piston of a rotary-piston I.C. engine of the kind having a triangular piston planetarily rotatable in a housing having an epitrochoidal inner profile, comprises at each apex corner of the piston a member carrying two or more sealing strips which is free to swivel in a carrying member by means of a cylindrical or part-cylindrical fit between the members and wherein the carrying-member includes a head part and a web part by which the carrying-member is guided in a longitudinally extending slot at the piston corner. As shown in Fig. 2, a carrying-member comprises a web part 11 guided in a radiallymovable member 16 mounted in a slot 17 at the piston corner and a cylindrical head part 12 encompassed by a member 14 free to swivel on the part 12 and carrying a pair of sealing strips 13 sealingly engaging the inner peripheral surface 2 of the engine housing. To provide freedom of movement of the member 14 it is cut away at positions 24 and at its ends at positions 25, Fig. 3 (not shown), where the lateral seals 23 extend into the spring-loaded corner sealing bolts. Piston channels 26 receive lubricating and cooling oil which passes into the slot 17 and through ducts and recesses in the member 16 and carrying-member parts 11, 12. The oil flows towards the central transverse plane of the piston and returns through a channel 27. In a further embodiment, the web and head parts of the carrying-member may be made in one piece with the web part slidable radially in a longitudinally extending groove in the piston. The member carrying the sealing strips may include a spring strip 59, Fig. 10 (not shown), pinned to the member 53 and carrying further sealing strips 55. In another embodiment, the carrying-member is in the form of a letter T with the horizontal limb 62, Fig. 11 (not shown), arcuate and supporting a complementary-shaped member 66 formed with sealing strips 65 and including a bronze insert 69 for running-in the engine.
Patent GB-569655-A (GB)
Title: Improvements in or relating to resonant lines for ultra high radio frequencies
IPC: H01P7/02
Filed: 1940-12-04
Abstract: 569,655. Electric resonators; valve generating circuits. FERRANTI, Ltd., GWYR, R. G. B., and CAPPER, J. F. Dec. 4, 1940, No. 17285. [Classes 40 (iii) and 40 (v)] A resonant line for ultra-high-frequency circuits of the kind described in Specification 568,378 which comprises a pair of parallel flat strip conductors with opposed faces is provided with ' a variable bridging condenser for the purpose of altering the natural frequency. The condenser may take the form of a movable plate 6 of insulating material of high dielectric constant disposed between the strips 2, 3 or of two metallic blades attached to the strips one being fixed and the other movable. In Fig. 3, the strips 2, 3 are connected to the grid and anode of an oscillator valve 10 and feed a dipole aerial 13 through condensers 15, 16. In a symmetrical arrangement, Fig. 4, the strips are connected at their ends to the grids and anodes of a pair of valves 25, 26 and at their mid points to the load 38, a pair of movable plates 31, 32 being pivoted on a central spindle 34. The plates may be shaped to give a desired frequency law and to permit ganging with the tuning condenser of another stage. The arrangement of Fig. 3 may be used for modulating, audiofrequency currents being applied to a moving coil attached to the plate 6, the coil being supported in a magnetic field. Specification. 538,921 also is referred to.
Patent GB-646927-A (GB)
Title: Device and method for introducing regulated amounts of liquids into wash-water supplies
Inventor: TATHAM GEORGE HUGH
IPC: A47L15/44
Filed: 1947-07-01
Abstract: 646,927. Injectors. LONDON SOLVENTS, Ltd. July 1, 1947, No. 17308. [Class 71] In an apparatus comprising a vacuum pump 2 actuated by water from a tap 1 and having connected to its normal air intake 3 a tube 6 which extends to the bottom of a scap solution container 8 and of such capillary bore as to pass a required rate of flow of solution to the water passing through the pump 2, the tube 6 has a three-way regulating tap 5 which in the off position permits entry of air to the pump and closes the passage between the container 8 and the pump 2. The container is provided with an air inlet valve 11, and in a modification air so admitted traverses a downwardly projecting capillary tube having an upturned end delivering air bubbles into a flared bottom end 7 of the tube 6.
Patent GB-994447-A (GB)
Title: Process for the production of foam materials from curable synthetic plastics
IPC: C08J9/04
Filed: 1962-05-04
Abstract: A process for the production of a foam material from a liquid curable resole or aminoplast synthetic thermosetting resin comprises incorporating in the liquid resole or aminoplast a heat-operable foaming agent and a solid inorganic compound in an amount of from 3 to 40% by weight based on the resin, such compound being capable of reacting with the water which is present in the resole or aminoplast, or which forms during the curing thereof, with the evolution of sufficient heat to cause the resin to foam and be cured without the necessity for external heating but without the formation of gas. Inorganic compounds specified are acid anhydrides and hydrate-forming salts, for example boron trioxide, phosphorus pentoxide, calcium chloride, lithium chloride, zinc chloride and magnesium perchlorate. They can be dissolved or suspended in anhydrous organic liquids, e.g. benzene, pentane, carbon tetrachloride, dioctyl phthalate, dibutyl phthalate, tricresyl phosphate, trichlorethyl phosphate, glycol, glycerol and liquid polymerization products of coumarone and/or indene.  In examples foamed resins are obtained by (1), (2) and (3) mixing a phenol-formaldehyde liquid resole with (1) petroleum ether, hydrochloric acid and phosphorus pentoxide in tricresyl phosphate; (2) n-pentane, hydrochloric acid and boron trioxide in a liquid coumarone resin; (3) pentane, hydrochloric acid and calcium chloride in trichlorethyl phosphate; (4) mixing a liquid aminoplast resin, containing surface-active agent, with petroleum ether, aqueous oxalic acid solution and boron trioxide.
Patent GB-729037-A (GB)
Title: Improvements in and relating to machines for making net or lace
IPC: D03D49/20
Filed: 1951-07-23
Abstract: 729,037. Net and lace making. BODEN & CO., Ltd., NEEDHAM, R. S., and TUNLEY, W. S. July 4, 1952 [July 23, 1951], No. 17355/51. Class 74 (1). [Also in Group XXIV] In a machine for making net or lace having a member on to which the work is wound and alternative ratchet wheels from which the rotation of the member can be derived, there is provided means responsive to the amount of work on the member for selecting the particular ratchet-wheel from which the rotation of the member is effected. The porcupine roller 36 and net beam 15 are driven by one or other of pawls 28d, 29d, 30d borne on a member 25 and associated with ratchet-wheels 28, 29, 30. Initially, three interconnected casings 28a, 29a, 30a having cut-outs such as 28b, to expose some of the teeth of the ratchet-wheels, are so positioned that pawl 28d is effective. As the diameter of the work on the work beam 15 increases, a roller 14 riding thereon acts through link-work and flexible cable 17 to move a plunger 18 out of the path of a pawl 22, also carried on the member 25. Thereupon the pawl 22, by means of a toothed arc 28c on the casing 28a, rotates the three casings into a position in which pawl 28d is disabled and pawl 29d allowed to act on ratchet-wheel 29. Continued increase in the diameter of the work finally causes sufficient movement of plunger 18 to release another pawl 23 which, by means of a toothed arc 29c on casing 29a, rotates the casings to such a position that pawls 28d, 29d are disabled and pawl 30d becomes effective, to rack ratchet-wheel 30. The casing assembly is located by engagement between teeth 35 and spring-loaded pegs 34 which can be held withdrawn, when re-setting the assembly, by means of co-operating screw-threads on pegs and housing.
Patent GB-1342846-A (GB)
Title: Encoding circuitry
IPC: H04M11/00
Filed: 1971-11-03
Abstract: 1342846 Selective signalling GAMON-CALMET INDUSTRIES Inc 3 Nov 1971 [31 Dec 1970] 17414/73 Divided out of 1342844 Heading G4H  In an encoding circuit, a shift register, in response to a transfer signal, receives a parallel data input and a predetermined bit into a predetermined stage and the first stage, the transfer signal being produced in response to a bit different from the predetermined bit being present in the predetermined stage and two others of the stages. The disclosure is repeated in the parent Specification 1,342,844.
Patent GB-407671-A (GB)
Title: Improvements relating to machinery for drawing bast fibres & long leaf fibres
IPC: D01H5/22
Filed: 1932-06-20
Abstract: 407,671. Drawing long-leaf fibres. JENNINGS, H. W. K., 51, Chancery Lane, London.-(Stone M. B. ; Canton Avenue, Milton, Massachusetts, U.S.A.) June 20, 1932, No. 17420. [Classes 120 (i) and 120 (ii).] Bast fibres such as flax, hemp, jute, and ramie and long-leaf fibres such as sisal and manilla are drawn without the use of gill boxes by means of a drawing frame embodying slip draft devices arranged so that at least two of them, including a slip draft device consisting of a pair of positively driven elements, such as rollers or belts are situated at a distance from the drawing rollers not exceeding the length of the longest fibres. In one form shown in Fig. 1, the sliver 1 passes through feeding rollers 2, 3, 4, and thence through four pairs of slip draft rollers 5, 5<a>, 6, 6<a>, 7, 7<a>, 8, 8<a> driven at progressively higher speeds to drawing rollers 9, the intermediate rollers 7, 7<a>, 8, 8<a> being positioned as above described. The lower intermediate rollers are positively driven by a chain 10 and idler rollers 12, 13, 14, and the upper rollers mesh with the lower so as to be capable of up and down movement. These rollers may be plain or " scratched " to improve the grip. In Fig. 3 the slip draft devices consist of conductors 20, 22, which contract the sliver, a stationary rod 21 and a pair of positively driven rollers 23, 23<a>, the sliver following a tortuous path which increases the slip draft effect. In another form three positively otated rods and a pair of positively rotated rollers are used, and in still another form, two pairs of rollers and two rods which may or may not be driven are used. These devices are arranged so that there is no unsupported length of sliver greater than the average length of the fibres. Dimension and speeds are specified. Specification 407,690 is referred to.
Patent GB-758978-A (GB)
Title: Improvements in or relating to devices for securing an electric cable to an electrical appliance so as to relieve strain
IPC: H01R13/59
Filed: 1954-06-15
Abstract: 758,978. Strain-taking devices for flexible leads; earth-continuity couplings. BORGWARNER CORPORATION. June 15, 1954 [July 13, 1953], No. 17530/54. Class 38 (1). A strain-relieving and earthing device for a cable 14 where it enters the casing of, for example, a motor, comprises an externally screw-threaded bushing 12 secured to the casing and recessed at 15 on its outer face to receive a split ring 16 embracing the metallic sheath 17 of the cable. The sheath is cut back and the end splayed out so as to be gripped between the ring and the surface of recess 15 when a cap 18 is screwed on to the bushing to engage the ring.
Patent GB-169778-A (GB)
Title: Improvements in or relating to beams or girders
IPC: B64C1/06
Filed: 1920-06-28
Abstract: 169,778. Sokal, S., (Luftfahrzeugbau Schutte-Lanz). June 28, 1920. Riveting.-In a trussed girder suitable for aircraft and of the kind having tubular longitudinals a and diagonal trussing e, the riveting of the diagonals to the tubes a is effected by employing a tool g so that auxiliary holes opposite the rivets are unnecessary. The tool has a groove k increasing in depth towards the open end, and the rivet lies completely within the groove when the tool is inserted in the tube. An outer support i may also be used.
Patent GB-1068514-A (GB)
Title: Improvements in or relating to suction grippers
Inventor: FAWDRY CHARLES FREDERICK
IPC: B65H5/14
Filed: 1963-05-03
Abstract: 1,068,514. Feeding sheets. H. T. BACKHOUSE. April 30, 1964 [May 3, 1963], No. 17612/63. Heading B6B. [Also in Division B8] A resilient suction lifting device 11 has a part-spherical socket 15 which pivots on a ball 14 having a bore 16 through which suction is applied, the head being attached to the ball by a band 17 tightened by a screw 18. In a second embodiment the ball has radial bores which connect with the bore 16 and apply suction to the inside of the socket 15 to prevent it moving. The device may be used in the type of sheet feeding machine described in Specification 946,946.
Patent GB-587691-A (GB)
Title: Improvements in cooking apparatus
IPC: A47J37/12
Filed: 1944-09-15
Abstract: 587,691. Cooking apparatus. SPOONER, W. W. Sept. 15, 1944, No. 17647. [Class 28 (i)] The cooking liquid, for example oil or fat 2 in a chamber 1 is circulated by a pump 5 through a second chamber 16 where it is heated, e.g., by electric resistances or a steam coil 17, the surface of the liquid being also heated by hot air or gas jets blown through nozzles 12 by a pump 15, such air &c. being heated by resistance 14. Instead of the second chamber 16 heating resistances may be coiled round the pipe 3 and enclosed in an alternative chamber. A food, to be cooked, e.g., fish, is placed on a conveyer 9 through an opening 8- and is delivered by the other end through a gravity closing gate 10 to a chute 11. Further hot air jets may also be applied to the base or sides of the heating chamber 16 or to the liquid therein. Specification 587,690 is referred to.
Patent GB-339327-A (GB)
Title: Improvements in or relating to road vehicle wheels
IPC: B60B11/06
Filed: 1929-06-08
Abstract: 339,327. Hamilton, R. L., and National Steel Foundry (1914), Ltd. June 8, 1929. Detachable - rim attachments to wheels. - Twin detachable rims are mounted on the off-set web portions f<1>, f<2> of a cast disc wheel, the outer rim being carried by a continuous removable felloe d' so as to permit manipulation of the inner rim without detaching the outer rim from its carrier ring. The inner rim is clamped on a coned flange d of the web f <1> by lugs c and bolts g. The outer rim, with the ring d', is secured to the stepped arms h of the web f<2> by similar clamps c and bolts k. To permit the removal of the outer rim without the ring d<1>, the latter is separately attached to the arms h by a pair of bolts j.
Patent GB-579891-A (GB)
Title: Improvements in or relating to anodes adapted particularly for use in the electrowinning of manganese
IPC: C25C7/02
Filed: 1943-10-28
Abstract: 579,891. Electrowinning manganese. ELECTRO MANGANESE CORPORATION. Oct. 28, 1943, No. 17801. Convention date, Jan. 16. [Class 41] [Also in Group II] An insoluble anode for use in the electrowinning of manganese comprises an alloy of the composition : tin 20-25 per cent., cobalt 0.02-0.04 per cent., antimony 4-6 per cent., and the balance lead, in which there may be traces of silver. The anode is stated to be permanent and develop in use an oxide coating of the constituent metals, which coating inhibits the production of manganese peroxide. Solid plates, perforated plates, grids, bars suspended from a horizontal support, or coatings on a core of other conductive material may be used as anodes. The electrolyte comprises manganese and ammonium sulphates, with sulphuric acid additionally in the anolyte. Specification 550,842 is referred to.
Patent GB-254521-A (GB)
Title: Improvements relating to the cleansing of milking machine teat cups
Filed: 1925-07-13
Abstract: 254,521. Shiels, T. July 13, 1925. Appliances for use in milking animals.-For cleaning the teat cups of milking-machines the cups are inverted and placed over vertical cores having spray holes, the cleansing liquid being drawn through these holes and the cups by the usual vacuum apparatus. As shown in Fig. 2, a pipe F with a non-return valve E server to supply fluid to a U-shaped tubular piece D into which four cores A are fixed. The cores have spray holes A', and ledges B upon which the teat cups Crest. In a modification the cores are hollow and provided with spray holes throughout their length and they extend upwards from tubes which depend from the cover of a tank into fluid contained therein. The cores may form the centres of circular brushes and may be fitted with pinions gearing with internal teeth on a horizontal hand-wheel; in this way the cores can be given a rotating movement.
Patent GB-977384-A (GB)
Title: Improvements in or relating to rope descent devices
Inventor: SYKES ARTHUR REGINALD
IPC: A62B1/14
Filed: 1960-05-20
Abstract: 977,384. Rope grips. R. & P. FOSTER Ltd. May 17, 1961 [May 20, 1960], No. 17849/60. Heading F2X. [Also in Division B8] A rope gripper 3, Fig. 1, for controlling the descent down a rope 1 by a person suspended in webbing 11 attached by hook 12 to the gripper 3, comprises a friction shoe 7 adjustably held in engagement with the rope 1 by a quickthread screw 5. A coil spring 9 normally holds the screw 5 with the shoe 7 in firm engagement with the rope. Handles 8 are provided on the screw for controlling the descent. The rope has hooks 2 at each end and the grippers 3 are reversible so that the rope may be lifted and hooked on its other end for descent by a second person.