baber/WOPTO huggingface dataset:
Patent GB-693460-A (GB)
Title: Improvements in protective coverings for electric cables, pipes and the like
Inventor: CONNING JAMES
IPC: H01B7/282
Filed: 1951-02-19
Abstract: 693,460. Cables. BRITISH INSULATED CALLENDER'S CABLES, Ltd. Feb. 18, 1952 [Feb. 19, 1951], No. 4039/51. Drawings to Specification. Class 36. [Also in Groups XVIII and XXVIII] A metal-sheathed cable has a protective cover comprising a continuous layer of rubber sandwiched between two relatively thin helical lappings of moisture-impervious material of which the modulus of elasticity is high as compared with unvulcanized rubber. The covering is applied to the cable sheath in the form of two relatively staggered helical lappings of tapes, each tape comprising a layer of unvulcanized rubber and a carrier layer of moisture-impermeable material such as polyvinyl chloride or polyethylene. The lappings are applied so that the two rubber layers are in contact. The rubber is vulcanized after application of the tapes to the cable, and this may be effected by omitting an essential vulcanizing ingredient, e.g. an ultra-rapid accelerator, from the rubber layer of one tape, and another essential vulcanizing ingredient, e.g. sulphur, from the rubber layer of the other tape. When the two layers of rubber come into contact migration of these essential ingredients takes place, and with it vulcanization of the two layers, as described in Specification 691,618.
Patent GB-547606-A (GB)
Title: Improved method of applying electric insulation
IPC: H01F41/12
Filed: 1941-03-26
Abstract: 547,606. Transformers. BRITISH THOMSONHOUSTON CO., Ltd. March 26, 1941, No. 4053. Convention date, March 26, 1940. [Class 38 (ii)] [Also in Group V] An electrical conducting member, such as a transformer winding 19, is insulated by surrounding it with a permeable envelope, immersing the member and its envelope in a suspension of, e.g. paper, asbestos or mica in liquid, the creating a pressure difference between the inside and the outside of the envelope, the higher pressure being on the outside so that the water will pass through the envelope and deposit its suspension on the outside thereof. As shown in Fig. 1, the envelope 20 is an annular perforated metallic member which screens the transformer winding electrostatically. The metallic screen may be spaced from the winding by protrusions or bars extending radially from the inside surface of the screen. The screen-winding assembly is suspended in a tank 10 which is supplied with water under pressure by a pipe 16 and with paper pulp suspension from a tank 14. (When mica is used, the liquid vehicle may be a thin glue-like liquid such as " Glyptal " (Registered Trade Mark). Water is pumped from the interior of the screen via a pipe 24, and excess water escapes through a pipe 21. Fig. 3 shows a non- metallic envelope in the form of a cloth screen 28 which is wrapped around a conductor 29 and soaced therefrom by spacers 30. The difference in pressure between the inside and the outside of the envelope may be effected by vacuum alone or pressure alone. Figs. 5 and 6 shows a member 34 which has been covered by applying vacuum through a pipe 35. A further coating of pulp 36 is then applied by hand to the vacuumdeposited coating, a screen 37 is placed over the applied coating, a vacuum nozzle 38 is placed on the screen, and vacuum is applied to both sides of the applied coating through pipes 35 and 38. The insulated winding may be dried in a high frequency oven or by passing current therethrough. Specification 539,730 is referred to. The Specification as open to inspection under Sect. 91 stated that the method illustrated in Figs. 5 and 6-viz. applying hydrated material by hand and applying suction via pipe 35 and nozzle 38-might be used independently of the immersion method. This subject-matter does not appear in the Specification as accepted.
Patent GB-1243055-A (GB)
Title: Ignition coils
Inventor: FRY WILLIAM LAWRENCE
IPC: H01F41/10
Filed: 1968-01-26
Abstract: 1,243,055. Ignition coils. JOSEPH LUCAS (INDUSTRIES) Ltd. 10 Jan., 1969 [26 Jan., 1968], No. 4160/68. Heading H1T. A flexible conductor 15 is fixed to a conducting strip 11 at several points 16, the strip 11 is inserted into a former 17 such that the conductor 15 is aligned with a slot 18 and one point 16 is at the closed end of the slot, the strip 11 is secured by bending over tags 14 engaging holes 19, the strip is severed flush with the end of the former 17 thereby freeing one end of the conductor 15, a conductive core (not shown) is an interference fit inside the former 17 and strip 11, and a winding (not shown) on the former is electrically connected to the free end of the conductor 15, thus ensuring electrical connection to the core. The completed ignition coil may be mounted in a conventional case and the appropriate connections made to terminals. The core may be formed by folding a rectangular sheet of metal, the shape being determined by the spacing of the parallel folds. The steps of manufacture may be performed in any convenient order.
Patent GB-241080-A (GB)
Title: Improvements relating to the moistening of warps during weaving
IPC: D03J1/00
Filed: 1925-01-16
Abstract: 241,080. Brown, Sir W. N. Jan. 16, 1925. Damping warps in looms.-The warps 2 are damped during weaving by an absorbent cloth or wick 6 on a bar 5 mounted in a trough 1 arranged below the warps and supplied with water by a pipe 4<a> from a water vessel 4, the warps being brought intermittently into contact with the top of the wick by the usual vibrator 7, and a tension roller 8 being provided to keep the warps in correct pcsition. The end of the tube 4a is adjustable in the trough 1 so that when the water falls below the desired level in the trough, air is admitted into the pipe and water flows from the supply vessel 4.
Patent GB-711424-A (GB)
Title: Treatment of delta-tetrahydrobenzaldehyde
Inventor: HAWKINS EDWIN GEORGE EDWARD
IPC: C07C35/14
Filed: 1951-02-21
Abstract: The invention comprises a glycol of the formula <FORM:0711424/IV (b)/1> and a process whereby D 3-tetrahydrobenzaldehyde or its liquid trimer is treated with an aqueous or alcoholic solution of an alkaline compound of an alkali or alkaline earth metal in the liquid phase at a temperature below 200 DEG  C. to produce the above glycol and D 3-tetrahydrobenzoic acid.  The process may further produce D 1-tetrahydrobenzoic acid, and with more elevated temperature the glycol decomposes to D 3-tetrahydrobenzyl alcohol and D 3 - tetrahydrobenzoic acid or to pimelic acid.  In examples, D 3-tetrahydrobenzaldehyde is refluxed with aqueous sodium hydroxide, product neutralized and the glycol, tetrahydrobenzoic acid and a little tetrahydrobenzyl alcohol isolated.  In other examples the glycol obtained is autoclaved with sodium hydroxide to yield pimelic acid and hexahydrobenzoic acid.  Specified alkaline materials include sodium carbonate, potassium hydroxide, sodium alcoholates, sodium triphosphate and calcium hydroxide. Specification 679,854 is referred to.
Patent GB-105079-A (GB)
Title: Artificial Arm and Hand.
Inventor: JENSEN JORGEN THOMAS
IPC: A61F2/58
Filed: 1917-03-23
Abstract: 105,079. Jensen, J. T. March 1, 1916, [Convention date]. Limbs, artificial.-The fingers of an artificial arm are flexed by the movement of the elbowjoint. The flexing-levers are connected to a pivoted plate 7, which is connected by straps 5, 6 to the elbow-joint in such manner that slight bending of the elbow causes the hand to close. Springs 8, 9 are provided between the plate and the straps to enable articles of varying sizes to be grasped. The connexion between the pivoted plate and the fingers consists of a link 15 connecting it to a slide 16 upon a second plate 11 at right-angles to it and in the plane of the hand when open; this second plate carries a transverse rod 23, to which the flexing-link 24 of each finger is connected. The jointed phalanges of each finger are connected by a linkage system 26 - - 30 which causes simultaneous flexing of all the joints. The arm itself consists of upper and forearm members 1, 2 connected by hinge links 3, 4, to which the operating-strips 5, 6 are secured, and the thumb is formed of one or two links pivotally arranged in a bracket 31 upon the horizontal plates 11 and operated by means of a lever and link-work from the sliding plate moved by the straps.
Patent GB-469647-A (GB)
Title: Improvements in apparatus for electrocuting animals
IPC: A22B3/06
Filed: 1937-02-12
Abstract: 469,647. Electric killing-appliances. CLARKE, A. D., ROBERTS, H. F., and VAUGHAN, G. H. Feb. 12, 1937, No. 4244. [Class 5 (i)] An electrocuting- cabinet a particularly for cats has a chamber b provided with a porcelain troughshaped container c divided by a partition d notched at e. In use, the cat is placed in the container with its hind feet on an electrode i and its neck in the notch e, so that its nose rests on an electrode h of absorbent material such as'sponge or felt that is moistened with a conducting liquid in a compartment of the container. On closing a sliding glazed cover k, the primary circuit of a transformer m is closed, and a hightension current passes through the animal. The electrode h may be replaced by a perforatedmetal liquid-container covered with sponge or felt.
Patent GB-224431-A (GB)
Title: Improved process of expelling volatile substances by means of a stream of vapour
IPC: B01D1/14
Filed: 1924-02-19
Abstract: 224,431. Imray, O. Y., (Farbwerke vorm. Meister, Lucius, & Br³ning). Feb. 19, 1924. Vapours, utilizing for effecting further evaporation.-In expelling a volatile substance by means of a stream of vapour, the mixed vapours are compreseed and condensed, and the condensate after separation of the volatile substance, is reevaporated by relieving the pressure upon it and passing it through a heat-exchange device in which it abstracts heat from and condenses the compressed vapours. The mixed vapours and expelling agent, for example steam, from a vessel a fitted with an inlet for material to be treated and an outlet i for the treated material, are withdrawn and compressed by a pump b or a steam ejector, and the compressed vapours are passed into a heat-exchanger c in which they condense. The volatile substance is discharged from the base f or from the top of a separating vessel if lighter than water and the water passes through a loaded valve e into the heat-exchanger c where it absorbs heat from the compressed vapours and is reevaporated and passed again into the vessel a. Steam for heating the apparatus is passed through an inlet g. The heat-exchanger may be formed by a tube which receives the compressed vapours and which is immersed in a layer of water in the vessel a. The treatment is rendered continuous by replacing the vessel a by a column. The loaded valve c may be replaced by a rising pipe to produce a hydrostatic pressure. The volatile substance may be separated from the condensate by a centrifugal separator. The vessel a may be heated by direct fire heat. A device for extracting volatile vapours from steam by treatment with a suitable liquid may be inserted in the circuit.
Patent GB-872628-A (GB)
Title: Sacrificial zinc anodes
IPC: C23F13/02
Filed: 1960-02-08
Abstract: 872,628. Making compound anodes; extruding; composite casting. CONSOLIDATED MINING & SMELTING CO. OF CANADA Ltd. Feb. 8, 1960 [Dec. 3, 1959], No. 4436/60. Classes 83 (1), 83 (2) and 83 (4). A method of producing a sacrificial zinc anode which has an aluminium core 12 comprises the steps of fluxing the clean degreased core, heating to 1000-1050‹ F. to melt the flux and dipping the hot core into a bath of zinc at 900-950‹ F. to form a continuous coating of zinc on the core with a zinc - aluminium alloy at the interface. The freshly-dipped hot core is placed in a mould 10 and zinc cast around it at 1000-1050‹ F. Finally the compound billet is extruded to the required size and shape. Details are given of a typical construction in which the core was 1¢ inches diameter and 14 inches long, the flux was 70% zinc chloride and 30% normal propyl alcohol and the finished billet was 4 inches diameter and 12 inches long. The billet was extruded through a cylindrical die at 500‹ F. and 370- 420 tons pressure to produce stock 0.84 inches diameter with an aluminium core 0.3 inch diameter. The extrusion was 20 feet long and the first and last 12 inches were discarded.
Patent GB-896371-A (GB)
Title: High pressure gas discharge lamp starting and operating circuits
IPC: H05B41/04
Filed: 1959-02-09
Abstract: 896,371. Control circuits for space discharge apparatus. ZEISS IKON A.G. Feb. 9, 1959 [Feb. 10, 1958], No. 4492/59. Class 38 (4). An operating circuit for a high-pressure gas discharge lamp is arranged so that high-frequency ignition impulses are repeated applied to the lamp, the number of the impulses being limited to a predetermined figure. A highpressure gas discharge lamp 1 is supplied from an alternating current supply over a rectifier 2, a known type of high-frequency ignition apparatus 3 being included in one of the direct current supply leads. When the supply to the lamp 1 is switched on a relay coil 4 is energized from the D.C. supply over a bimetallic switch 16b, a changeover switch 17b and a relay contact 9b. Contact 4a thus closes to complete the supply to the ignition apparatus 3 over a bimetallic switch 16a and changeover switch 17a, whereby a starting impulse is applied to the lamp 1. Simultaneously with the energization of relay coil 4 a condenser 10 commences to charge and when the voltage thereacross is sufficient, a relay coil 9 operates to open contacts 9a, 9b. Relay coil 4 is thus de-energized, and contact 4a releases to remove the supply from the ignition apparatus 3. At the same time the condenser 10 discharges through the relay coil 9 until it can no longer maintain contacts 9a, 9b open. Closure of these contacts once more energizes relay coil 4 to re-instate the supply to the ignition apparatus 3 whereby another starting impulse is applied to the lamp 1 and so on. After a predetermined number of starting impulses have been applied, the bimetallic switches 16a, 16b, 16c become heated sufficiently to operate to prevent further ignition impulses being applied to the lamp. An indicating lamp 18 operates to indicate that switch 16 has operated. An alternative supply circuit to the ignition apparatus 3 is provided by moving changeover switch so as to open switch 17b and close switch 17a on contact 20, the ignition impulses then being controlled by operation of a push-button 19. In a further embodiment the relay coil 4 is arranged to carry the charging current of the condenser. Specification 896,370 is referred to.
Patent GB-1048452-A (GB)
Title: Improvements in or relating to magnetic deflecting means for cathode-ray tubes
IPC: H01J29/76
Filed: 1965-02-02
Abstract: 1,048,452. Demagnetizing apparatus. HOLLANDSE SIGNAALAPPARATEN N.V. Feb. 2, 1965 [Feb. 12, 1964], No. 4537/65. Heading H1P. [Also in Division H4]. In an arrangement for eliminating residual magnetism in the ferro-magnetic yoke 2 (Fig. 1) of a cathode-ray tube deflection system, each deflection coil L 1  and its associated damping resistors R 1  is shunted by a two-terminal network 4, comprising an inductance L 2  and an adjustable resistor R 2  either series connected, as shown, or parallel connected, the time-constant of such network being greater than that of L 1 , R 1  so that at the end of a cycle of the sawtooth waves from generator 3, when the driving current i 0  (see also Fig. 2, not shown) has reached zero, the current i L1  in the deflection coils decays at a faster rate than the current i L2  in network 4 and thus when the former current reaches zero (T 2 , Fig. 2) the continued decay of the latter results in a current flow through L 1  in the opposite direction to the original decay current. This negative current eliminates the residual magnetism and the next beam deflection commencing at T 3  (Fig. 2) is independent of the previous one. The networks 4 may be located at a position remote from the tube and may be shunted across only part of the coils L 1 .
Patent GB-143611-A (GB)
Title: Improvements in machine guns and other firearms
IPC: F41A21/48
Filed: 1919-02-24
Abstract: 143,611. Fairfax, H. W. Gabbett-. Feb. 24, 1919. Barrels.-Consists in securing a detachable barrel by providing external grooves on the breech end of the barrel, and corresponding internal grooves on the breech-socket, these grooves forming seatings for wedges which are inserted in pairs therein and are provided with tightening and slackening means. In the form shown in plan in Fig. 2, as applied to a machine gun, the barrel A and breech-socket B are provided respectively with grooves D, E adapted to receive locking- wedges G, H secured to the gun by safety chains P. The pairs of wedges G, H are coupled by a sleeved member L, and the wedge H is capable of being displaced up or down with respect to the wedge G, to tighten or slacken the compound wedge in the grooves D, E, by turning a nut N co-operating with a slot O.
Patent GB-910650-A (GB)
Title: Omni directional antenna
Inventor: ADAMS GERALD JAMES
IPC: H01Q21/20
Filed: 1961-02-07
Abstract: 910,650. Aerial arrays. ALFORD, A. Feb. 7, 1961, No. 4619/61. Class 40 (7). An omnidirectional aerial array for vertically-polarized energy is formed by a plurality of coaxially arranged units. The aerial feeder comprises a central coaxial line 2, 3, the inner conductor 2 of which comprises a series of transformer sections for matching purposes. The conductor 2 is carried across a gap 7 in the outer and attached to the base 5 of a cylinder 6 which is a continuation of outer conductor 3. Energy passing through the gap 7 reaches a second coaxial line having as its inner element conductors 3 and 6 and as its outer element conductive cylinder 22. It divides equally at gap 7 and the two parts travel upwards and downwards along this second line to reach annular gaps 23, 26, respectively, at its ends. These gaps feed centrally into further coaxial lines along each of which the energy flows upwards and downwards to annular radiating slots 52, 53, 54 and 56. As described, all these slots are fed in phase and an omnidirectional pattern with its main lobe, in a vertical plane, horizontal is produced. Variations in the radiation pattern and the vertical direction of its major lobe may be made by adjusting the division of power at the gaps and moving the gaps to alter the phasing of energy fed to the radiating slots. The construction of the preferred embodiment, which is housed in a fibre-glass radome, is described and a lightning conductor 62 is attached to the top plate 59 of the array assembly and projects through a seal 63 at the top of the housing. A conductive path from the rod runs to cylinder 6 and inner conductor 2. At the bottom of the supporting mast a high impedance stub is used to provide a D.C. path from the inner conductor of the feeder to ground.
Patent GB-1101270-A (GB)
Title: Upper knife cutting ring for multi-edge circular shears
IPC: B26D1/00
Filed: 1967-01-31
Abstract: 1,101,270. Cutting apparatus. DIENES WERKE FœR MASCHINENTEILE G.m.b.H. 31 Jan., 1967 [8 Feb., 1966], No. 4726/67. Heading B4B. An axially resilient upper cutting ring for multi-edge circular shears has a conical cutting land 2 of small base angle extending to the cutting edge 1 formed as a ground surface.
Patent GB-421144-A (GB)
Title: Improvements in continuously operated vertical chamber ovens or retorts
IPC: C10B29/02
Filed: 1934-02-13
Abstract: A refractory lining for a vertical retort is obtained by burning a pulverized mixture of kaolin and quartz with a maximum content of 36 per cent alumina, mixing the resulting fragments with such a proportion of the initial mixture that on burning at a temperature above 1500 DEG  C., a clear distribution of mullite crystals throughout the material is obtained.  The refractory has a porosity of less than 15 per cent volume, preferably from 8-10 per cent, whilst the closed pore volume is greater than the volume of the open pores.
Patent GB-370115-A (GB)
Title: An acetylene gas generator which produces a flame of great heat for cutting and welding metals, and lead-burning
IPC: C10H1/00
Filed: 1931-02-16
Abstract: <PICT:0370115/IV/1> In a non-automatic high-pressure acetylene generator of the water-to-carbide type, the pressure-equalizing pipe connecting the carbide chamber b with the water chamber a is provided with a plug cock n, and the pipe h through which water is fed to the carbide is controlled by a plug cock i.  The gas issues from the generator at m.  By closing the cock n, the water in the chamber a can be replenished through the aperture d, after removing the cap e, without interrupting the delivery of gas.  A perforated metal cap k is provided, to distribute the water over the carbide. Details are given of a method of operating the generator so as to produce a flame suitable for cutting and welding metals and lead-burning, for which purposes a burner is connected to the outlet m.
Patent GB-136965-A (GB)
Title: Improvements in Wheels such as Steering Wheels of Motor Vehicles.
Inventor: BOWEN WILLIAM AGUSTUS
IPC: B62D1/04
Filed: 1919-02-27
Abstract: 136,965. Bowen, W. A., and Pratt, E. V. Feb. 27,1919. Hand-wheels.-A hand-wheel for motor-vehicles &c. comprises a rim formed by bending a band into a ring or connecting together curved segments, the rim being connected to a central body by projections such as g and recesses i caused to engage by the forming of the rim into an endless ring. The rim may consist of a metal tube a, or segments of wood, &c. and may be covered with celluloid br other material, and the projections g may be on the body and the recesses i in the rim. The ends of the rims may be drawn together by rotating a filling-piece c mounted on a screw f which engages cross-pieces d, e, end the projections g may be formed on cross-pieces g<2>. In modifications, the ends of the rim are united by a transverse key engaging both ends, and by brazing.
Patent GB-180011-A (GB)
Title: Improvements in or relating to governors for fluid pressure apparatus such as air compressors and the like
IPC: F04B49/24
Filed: 1921-02-11
Abstract: 180,011. Globe Pneumatic Engineering Co., Ltd., and Sweetser, E. H. Feb. 11, 1921. Valves controlled by pilot or relay valves.- A governor for air compressors &c. comprises a control valve which at a given pressure admits fluid to a member controlling the inlet valve of the compressor, and a reinforcing-member having differential areas which upon initial movement of the control valve is actuated by fluid pressure on one area to move in one direction assisting the control valve and on further movement of the control valve is returned by pressure on the other area. The governor shown comprises a ball valve C subject to the receiver pressure through a pipe D and to the atmosphere through a passage E through which the valve stem passes, its end pressing against a weighted lever F. Excessive pressure opens the valve against the pressure of the lever and allows air to pass through a pipe G to the top of a plunger J to which a fork K is connected adapted to press the inlet valve L open. At the same time, air is also admitted to the top of a piston N, the stem of which is thereby forced down on the lever F and assists the action of the control valve. The lower side of the piston N is corinected by a pipe Q to passages controlled by the plunger J so that normally the pressure below the piston N is atmospheric, but depression of the plunger admits compressed air and forces the piston N back again. A pocket or choke valve may be provided between the pipe Q and the piston N to delay the return of the valve.