baber/WOPTO huggingface dataset:
Patent GB-136813-A (GB)
Title: Improvements in Shock-absorbers for Vehicles.
Inventor: AGNELLI CARLO
IPC: F16F9/346
Filed: 1919-12-02
Abstract: 136,813. Agnelli, C. Dec. 14, 1918, [Convention date]. No Patent granted (Sealing fee not paid). Dash-pots and fluid-friction vibration dampers.-In a liquid shock-absorber for vehicles, the cylinder and piston are connected respectively to the two parts whose displacements are to be damped, such as an axle and the frame, and the piston is formed with passages, some which are traversed by the liquid when the piston is forced in one direction by the shock and the others during the reverse movement due to the reaction of the springs. The portion of the cylinder wall in which the piston is normally situated is provided with grooves 6 so as to prevent any damping action for small shocks. The piston 2 is mounted loosely on the rod 3, but is prevented from rotating by engaging slots 7 in the cylinder wall. Disks 8, 9 are fixed to the rod 3 so that, by rotating the piston-rod, the mouths of the passages in the piston can all be varied together. The passages for the forward flow are made of larger cross-sectional area than the return passages, and the flow is controlled by pivoted flap valves 16 mounted on the disks.
Patent GB-340611-A (GB)
Title: Submarine cable systems
IPC: H04B3/02
Filed: 1929-10-04
Abstract: 340,611. Loading. ELECTRICAL RESEARCH PRODUCTS, Inc., 195, Broadway, New York, U.S.A.-(Assignees of Gilbert, J. J.; 16, Pine Street, Douglaston, New York, U.S.A.) Oct. 4, 1929, No. 30137. Convention date, May 31. [Class 40 (iv).] In long submarine cables continuously loaded with magnetic material such as the alloys described in Specifications 273,638 and 323,222, [both in Class 82 (i), Metals, Extracting &c.], it is found that the constancy of the permeability of the loading material within the signalling range is impaired by strong earth currents below that range, and to obviate this defect a network 11 is inserted at one or both ends of the cable to reduce the intensity of these disturbing currents. As applied to a telegraph cable 12 with a sea earth return 13, the network 11 may comprise a transformer 20 and condensers 21, 22 having suitable values. The invention is applicable also to coil loaded cables in which the magnetic properties of the coils are impaired by the flow of excessive currents.
Patent GB-227258-A (GB)
Title: Improvements in apparatus for use in connection with the filtration of water
Filed: 1923-12-01
Abstract: 227,258. Candy, F. P. Dec. 1, 1923. Filters with loose filtering-materials. - The rate of discharge of water from a filter bed is kept constant by means of a valve governed by a float riding on the filtered water before it passes the valve. A vertical conduit 11 is connected to the outlet pipe 4 between the filter 1 and the valve 5. A float 13 is connected to a counterweight 21 by means of a chain 14 passing round a pulley 15. The spindle of the pulley is geared to the spindle of a cam 10 which engages a lever 9 connected to the valve 5. The lever 9 may also be operated to close the valve 5 by means of a float 19 in the unfiltered water above the bed. Or arrangements as described in Specification 196,153 may be made for closing the valve quickly when the water above the bed has reached a predetermined level.
Patent GB-1278771-A (GB)
Title: Improvements in or relating to radio interference apparatus
IPC: H04K3/00
Filed: 1963-07-30
Abstract: 1278771 Radio-frequency systems SIEMENS AG 30 July 1963 [31 July 1962] 30261/63 Heading H4L Radio interference apparatus comprises a radio receiver capable of receiving radio signals at all frequencies which are within a specific frequency range which is divisible into a plurality of specific equal wavebands; receiver frequency-conversion means capable of converting the wavebands to a common singlefrequency band; switch means associated with the conversion means to render it operative for one waveband at a time; a frequency analyser connected to the outputs of the conversion means; and an interference signal generator fed by the output of the analyser and capable of generating an interference signal at the frequency of a received radio signal. Fig. 1 shows a receiver covering the range 220-250 Mc/s. divided into five equal wavebands. Received signals are converted into the range 60-90 Mc/s. of converter Ua and fed to the five converters Ub1-Ub5, each of which converts one of the wavebands to a frequency range 10-16 Mc/s. and feeds an amplifier VEU2. The output of VEU2 feeds five converters Uc1-Uc5, each covering a fifth of the range 10-16 Mc/s.; similarly each converter Uc1-Uc5 feeds five converters, such as Ud3, and each of these feeds a further five converters, such as Ue3, each covering a 48 Kc/s. channel. The 125 final converters, such as Ue3, are each connected through five switches Zc1-Zc5 to pulse-stretching devices D1-D5. Switches Zc1-Zc5 are operated synchronously with switches Zb1-Zb5 which control converters Ub1-Ub5. For example switch Za, controlling converter Ua and therefore the whole receiver, may be closed for 0À5 milliseconds and switches Zb1-Zb5 and Zc1- Zc5 may be closed in sequence for 0À1 millisecond each so that each waveband is searched in turn for a period of 0À1 millisecond. The transmitter, Fig. 2, comprises a noise generator R and amplifier VR, the output of which is divided into 125 noise channels each with a bandwidth of 48 Kc/s. These are converted by 63 converters RU1-RU63 to the range 10-16 Mc/s. The channel switches K1-K125 are arranged in five rows, corresponding to the five wavebands, each containing 125 columns. All 125 switches Zc1 in the receiver control one of the 125 switches K1-K125 in row SG1 whilst switches Zc2-Zc5 control switches in rows SG2-SG5. The output of each row is fed to a converter SUb1-SUb5 for conversion to the correct waveband, and the output of the converters are fed through amplifiers VSU2 to the transmitter converter SUa. The transmitter output power may be kept constant by automatic gain control, a feedback being provided from VSU2 to VR. A transmitting period may follow a search of each waveband or a search of all five wavebands. The wavebands may be searched sequentially or irregularly.
Patent GB-456083-A (GB)
Title: Improvements in devices for fastening articles to walls, doors or the like
IPC: F16B47/00
Filed: 1935-11-02
Abstract: 456,083. Hooks. NAAMLOOZE VENNOOTSCHAP IJZERHANDEL I. M. DE VRIES, 6, Rokin, Amsterdam. Nov. 2, 1935, No. 30306. Convention date, Nov. 3, 1934. [Class 89 (ii)] [See also Group XIV] In hooks or brackets of the type having a rabbeted base member 2 secured to the wall &c. and adapted to support detachably a correspondingly recessed member 4 carrying the hook &c. the base member 2 comprises a wooden insert embraced by a metal covering on all faces except that which is adapted to be glued to the wall &c. As shown the recessed member 4 carries a soap dish 6 and the recess is open at the bottom and closed at the top and engages side rabbets 3 on the base member.
Patent GB-600340-A (GB)
Title: Improvements in economisers or feed water heaters to reduce external fouling
IPC: F22D1/02
Filed: 1945-11-13
Abstract: 600,340. Feedwater heaters. RYLANDS, J. R., PARRIS, C. W., and JENKINSON, J. R. Nov. 13, 1945, No. 30318. [Class 64(i)] In a feedwater heater for steam boilers, plain steel tubes 2, either with or without an exterior corrosion - resisting covering of such thickness that the exterior face temperature of the coating is not materially above the tube wall temperature, are used in the higher temperature part of the heater where high surface temperatures would aggravate the hard and intractable character of the deposit from the hot gases, and extended surface tubes 1, i.e. tubes having gills, fins or other projections attached to them or cast metal sleeves with or without gills, fins or other projections, shrunk on or otherwise attached to the steel tubes on the gas-swept side, are used in the lower temperature part of the heater to reduce external sulphuric acid corrosion. The plain steel tubes may have a coating of a silicone or other heat and corrosion resisting plastic. Specifications 200,060, [Class 64(i)], 475,526, 475,540, 492,108 and 501,202 are referred to.
Patent GB-1272307-A (GB)
Title: Monoazo dyes for nylon having improved solubility
Inventor: HORNING RODERICK H
IPC: C09B29/20
Filed: 1969-06-16
Abstract: 1,272,307. Monoazo dyes. CROMPTON & KNOWLES CORP. 16 June, 1969 [14 June, 1968], No. 30350/69. Heading C4P. The invention comprises monoazo dyes of formula wherein R is an aryl group free of ionogenic substituents, having a total molecular weight of not more than 175, X is H, Cl, CH 3  or OCH 3  and R<SP>1</SP> is as R but having a molecular weight of not more than 150, and wherein when X is Cl, R is not an unsubstituted phenyl group. The dyes are prepared by coupling a diazotized N-(3- amino - phenylsulphonyl) - arylsulphonamide with a 2-hydroxy-3-naphthoic acid arylamide and give yellowish red shades on nylon.
Patent GB-505116-A (GB)
Title: Improvements in and relating to the protective control of mercury arc rectifiers
IPC: H02H7/12
Filed: 1937-11-05
Abstract: 505,116. Protective cut-out systems; converting. BRITISH THOMSONHOUSTON CO., Ltd., and SARJEANT, C. J. Nov. 5, 1937, No. 30414. [Class 38 (v)] [Also in Group XXXV] A method of protective control for mercuryarc rectifiers consists in providing means for reconnecting the rectifier in circuit a limited number of times after relatively-long timedelays upon the occurrence of faults within the rectifier and for automatically arranging the control circuits so that the rectifier is reconnected in circuit an unlimited number of times on the occurrence of faults external to the rectifier. In the diagrammatic form shown, the rectifier 1 is connected by the breaker 2 to the supply and to D.C. feeders A, B, over the high-speed breaker 4 which is, as shown, polarized so as to respond only to reverse currents due to arc-back, but may be a non- polarized breaker controlled by a reverse-power relay. If a short-circuit occurs on an outgoing feeder, the feeder breaker and the high-speed relay 5 operate, the latter supplying the necessary grid-bias to suppress the arc in the rectifier and completing over its contacts 15 and the closed contacts 12 of breaker 4, the circuit of the short-time relay 10. Operation of the latter energizes the reset coil 7 of relay 5 which, on responding, removes the grid-bias and at contacts 15 opens the circuit of 10 which opens the circuit of 7. This sequence is repeated each time a fault occurs on a feeder. With an arc-back, the relay 5 operates as before to apply the grid-bias, but the breaker 4 opens and disconnects the D.C. side, at the same time opening at 12 the circuit of relay 10 and making at 13 (over contacts 16 of relay 5) the circuit of a long-time relay 9 and notching relay 8. The latter advances a notch and relay 9 begins timing and, after the necessary delay, energizes the reset coil 7. Relay 5 resets itself, removes the grid bias, and deenergizes relays 8, 9, the former starts to time, and will reclaim its notch if de-energized long enough, whereas the latter de-energizes coil 7. Relay 5 makes at contacts 14 the circuit of contactor coil 11 which recloses the breaker 4 and puts the rectifier back on load. If the operation is repeated a given number of times, the relay 8 brings out breaker 2.
Patent GB-405595-A (GB)
Title: Improvements in refrigerated cabinets for storing ice cream and other foodstuffs
IPC: F25D3/14
Filed: 1933-11-02
Abstract: 405,595. Refrigerators. BORRING- TON, A. G., 2, Crossley Terrace, Liverpool Road, Barnsbury, London. Nov. 2, 1933, No. 30454. [Class 29.] A refrigerator comprises a vessel a with a partial vacuum between its walls and formed with a ledge e near the top on which solid carbon dioxide is placed. A receptacle b rests on a rubber ring g in the vessel a and more refrigerant is placed in the space f. The vessel a is placed in a casing c with insulating packing d.
Patent GB-540208-A (GB)
Title: An improved process for concentrating olefins and separating the same from gaseous mixtures
IPC: C07C7/156
Filed: 1939-11-21
Abstract: 540,208. Separation and storage of olefines. STANDARD OIL DEVELOPMENT CO. Nov. 21, 1939. No. 30480. Convention date, Dec. 30, 1938. [Class 2 (iii)] Olefines are separated from hydrocarbon mixtures in which acetylene is also present by pressing the mixture through a slurry of cuprous chloride and ammonium chloride in dilute hydrochloric acid, whereby the acetylene and a part of the olefines are absorbed until the saturation point of the olefines is reached, continuing the passage of the mixture to complete the absorption of the acetylene and liberate the olefine, and finally passing the mixture through a fresh slurry to absorb and store the olefines. If desired, the latter may be liberated by the application of heat or reduction of the pressure. The ammonium chloride in the slurry may be replaced by an alkali or alkaline earth metal chloride, in which case the hydrochloric acid may be dispensed with. If any oxygen be present in the initial mixture, it may be removed simultaneously with the acetylene by passing the gas through a slurry of cuprous chloride and ammonium chloride in dilute hydrochloric acid to which metallic copper in the form of turnings has been added. The absorbed acetylene may be recovered from its absorption products by treatment with acid or by heat treatment or reduction of pressure. Tables are given showing the solubility of ethylene and propylene at different temperatures in solutions containing cuprous chloride, ammonium chloride and hydrochloric acid and in a solution of calcium chloride saturated with cuprous chloride. Examples are given.
Patent GB-1114070-A (GB)
Title: Basic oxygen converter vessel construction
IPC: C21C5/44
Filed: 1966-07-07
Abstract: 1,114,070. Metallurgical converters. HARBISON-WALKER REFRACTORIES CO. 7 July, 1966 [30 July, 1965], No. 30499/66. Heading F4B. In a metallurgical converter, an annular zone or knuckle area 24 of sector shaped cross-section between a concave upwardly opening bottom zone 18 of the working lining and a barrel zone 20 thereof is substantially filled with contiguously abutting refractory bricks 50, Fig. 4, of parallelogram cross-section, the bricks extending from contiguous the lowest bricks of the barrel zone to contiguous the outermost bricks of the bottom zone entirely around the annular zone. The skew end surfaces 46 of the knuckle area bricks may abut the face surfaces of the lowest bricks in the barrel zone as shown in Fig. 4, or the face surfaces of the terminal inclined outermost bricks of the bottom zone. The remaining voids in the knuckle area are filled with monolithic refractory material 58.
Patent GB-255300-A (GB)
Title: Improved process of and apparatus for purifying clay and the like
IPC: B28C5/38
Filed: 1925-12-02
Abstract: 255,300. Parentani, F. Dec. 2, 1925. Aluminium silicate. - Minerals such as clay are freed from colouring impurities by treatment in the dry state with sulphuretted hydrogen at atmospheric temperature and then treating with dilute acid to dissolve the iron. The apparatus shown comprises treating-chambers 1, 1<1> arranged over a leaching tank 2 having a stirrer 18. The chambers 1, 1 communicate with the tank 2 by perforated pipes 5 and the opening is closable by a valve 6. The chambers are arranged under hoods 7 which form part of a structure including hoppers 9 which communicate with the chambers 1, 1<1> by chutes 1 having slide valves 10. The door 8 of a chamber in its open position fits against the upper wall of the chute 11. When a chamber has been charged with dry clay, the air is exhausted by a vacuum pump connected with a pipe 12, and sulphuretted hydrogen from a container 14 is admitted by a pipe 13. After a few hours, the valve 6 is lowered to discharge the mass into the tank 2, which receives water by a pipe 15 and a small quantity of a suitable acid from a container 17. The valve 6 is then clased. Meanwhile the chamber 1<1> has been charged and the air exhausted. Its valve 6 is then lowered as shown in Fig. 2 sufficiently to allow the sulphuretted hydrogen liberated in the tank 2 to pass into it through the perforated pipe 5. The mass in the tank 2 is then discharged into a container 20 in which the dissolved sulphuretted hydrogen is extracted by a pump 22 which delivers it to the container 14. The mass is then diluted and sent to a filter-press. The sulphuretted hydrogen may be used under any suitable pressure.
Patent GB-1079248-A (GB)
Title: A method of mounting horizontal tubes of heat exchangers
IPC: F22B37/20
Filed: 1964-08-04
Abstract: 1,079,248. Heat exchanger tube supports. KOHLENSCHEI DUNGS G.m.b.H. Aug, 4, 1964 [Aug. 9, 1963], No. 30608/64. Headings F4A and F4S. In a heat-exchanger, such as a steam generator, horizontal tubes 1 are supported on vertical tubes 2 having longitudinal fins 3 with recesses in them corresponding to the wall curvature of the tubes 1. The tubes 1 are welded to the fins around the recesses.
Patent GB-1425333-A (GB)
Title: Separation of anthraquinone from a mixture of its vapour with a carrier gas
IPC: C07C/
Filed: 1973-06-27
Abstract: 1425333 Anthraquinone BADISCHE ANILIN- & SODA-FABRIK AG 27 June 1973 [1 July 1972] 30631/73 Heading C2C  Anthraquinone is separated from a mixture of its vapour with a hot carrier gas by treating the gas-vapour mixture at a temperature of at least 200 C. with an aqueous suspension of anthraquinone at a temperature below the boiling point of water at the prevailing pressure. The aqueous suspension preferably contains 2 to 20 wt. per cent of anthraquinone and has a temperature of 20 to 95 C. As shown in the Figure, the process may be operated continuously by passing the gas mixture 8 into an aqueous suspension of anthraquinone in desublimator 1 and continuously circulating the treated suspension 9. A portion of this suspension 10 is filtered on rotary filter 3 to remove anthraquinone which is dried in drier 4. The filtrate from filter 3 is cooled to 10-35 C. to recover organic acids from it, and thereafter recycled to the desublimator.
Patent GB-519402-A (GB)
Title: Improvements relating to electric transformer boxes or units for the supply of low-voltage current
IPC: H01F27/02
Filed: 1938-10-24
Abstract: 519,402. Transformers. HOLLANDER, J. M. Oct. 24, 1938, No. 30633. [Class 38 (ii] A transformer 16 for supplying low-voltage circuits, such as machine-lighting or inspection - lamps, is mounted on the inside of the hinged or removable lid.2 of a box 1 in the interior of which are located two pairs of spring contacts 11, 12 connected respectively to the input and output circuits and adapted to co-operate with contact pegs 17, 29 connected to the primary and secondary windings and carried by the lid so that the transformer is isolated when the lid is opened or removed. A switch in the primary circuit may also be mounted on the lid together with fuses 25 for both primary and secondary circuits. In an alternative and portable constrtiction, two pairs of output connections are brought out to sockets on opposite sides of the box and plug connectors, adapted to feed portable lamps, for example, and carrying the output circuit fuses are provided.
Patent GB-189640-A (GB)
Title: Improvements in or relating to carding machines
IPC: D01G15/80
Filed: 1921-11-17
Abstract: 189,640. Booth, E. W. Nov. 17, 1921. Carding-engines.-The adjacent strippers and workers and the doffer are cleaned by rollers D. Fig. 1, which are reciprocated across the card clothing by a grooved sleeve U, Fig. 6, driven through gearing Q, S<2>, S<3>, T having 40, 20, 20. and 41 teeth respectively. The sleeve U has cam faces U<1>, U<2> which engage cams R<1>, R<2> on a tubular member R<3> fast to the wheel Q. The wheel T thus lags on the wheel Q and the sleeve U is moved slowly in each direction; the movement is transmitted to the rollers D by a connection engaging the groove U'. The same device is used to reciprocate the pin blades M of the fancy roller C. The machine shown in Fig. 1 has three workers B and four strippers A, but in a machine having four workers as shown in Fig. 2, the teeth of the worker B' and stripper A<3> project in opposite directions and are cleaned bv an oscillating roller H, Fig. 4, the pins N'. N<2> of which are alternately retracted by springs J and forced outwards by an independently operated cam L and act alternately on the worker and stripper.
Patent GB-740461-A (GB)
Title: Improvements relating to aircraft slip indicators
Inventor: BARNES JEFFERY WALTON
IPC: B64D45/00
Filed: 1952-12-03
Abstract: 740,461. Aircraft slip indicators. PULLIN & CO., Ltd., R. B., and BARNES, J. W. Nov. 30, 1953 [Dec. 3, 1952], No. 30684/52. Class 97 (2). An indicator comprises a pendulum so coupled to an inverted pendulum that both are simultaneously vertical and both move in the same direction for a given slip or tilt of the aircraft. In the form shown a pendulum comprising a plate 3 and a weight 6 carried on an axle 4 supported in a bearing 10. It carries a pin 12 engaging a slot in a plate 14 secured by rivets 15 to a plate 16 pivoted at 17 and forming the inverted pendulum. The movement of the weight 6 is limited by stops 19 on a bridge 20. The plate 3 is bent at right-angles beyond the weight 6 and carries an indicatoi moving over a dial. The plates 3, 16 are cut away at 21, 22 to pass the shaft 23 of a turn indicator. The sensitivity of the arrangement shown decreases with inclination. The reverse is true if the pin 12 is carried by the plate 16 to engage a slot in the plate 3. The axle 4 carries a copper drum rotatable between a stationary permanent magnet and a stationary ferrous cylinder to provide eddy current damping.
Patent GB-772062-A (GB)
Title: Improved preservation of color in canned green vegetables
IPC: A23B7/154
Filed: 1954-10-25
Abstract: The colour of green vegetables is preserved in canning by including in the canning medium a dibasic alkali metal or alkaline earth metal salt of glutamic acid, in concentration exemplified by 0.0015-0.02 moles per 100g. of the medium.  The canning medium is preferably adjusted to pH 8.0-8.5 by adding alkali.  An example is concerned with sterilizing, at 240-260 DEG F., green vegetables sealed in cans with an aqueous solution containing 4.5 per cent of sucrose, 2.5 per cent of sodium chloride, 0.3-0.8 per cent of disodium glutamate and sufficient sodium hydroxide to maintain pH 8.5 after the heat treatment. Replacement of a tenth to a third of the disodium glutamate by calcium or magnesium glutamate is referred to.  The calcium glutamate is said to produce skin toughening.  Further improvement is effected by including in the canning medium an alkali metal or alkaline earth metal salt of ascorbic or phosphorous acid as a reducing agent, e.g. 0.05-0.10 per cent of sodium ascorbate or calcium phosphite may be added to the sugar and glutamate-containing brine mentioned.
Patent GB-1305240-A (GB)
IPC: F15B7/00
Filed: 1970-06-24
Abstract: 1305240 Valves NEUWEG FERTIGUNG GmbH 24 June 1970 [16 July 1969] 30716/70 Heading F2V [Also in Division F1] The master cylinder 6 contains a rolling diaphragm 8 actuated by a push button 7 and the slave cylinder 2 which is of greater diameter than cylinder 6 contains a resilient rubber disc 4 having a metal disc 5 on its output side in abutment with a short-stroke valve (not shown) arranged in the piston of an adjusting cylinder for pivotal back rests of aircraft or motor vehicle seats.