baber/WOPTO huggingface dataset:
Patent GB-767025-A (GB)
Title: Improvements in the treatment of polyamide fibres with per-compounds or per-compoundcontaining detergent compositions
IPC: D06L4/12
Filed: 1954-02-25
Abstract: Polyamide fibres are treated with per-compounds or detergent compositions containing per-compounds in the presence of an organic compound which contains at least two nitrogen-containing groups, of which one is a primary or secondary amino group or an >NH group forming part of a saturated heterocyclic ring and the other or another is a primary, secondary or tertiary amino group or an >NH group forming part of a saturated heterocyclic ring or an N-carboxyamino or sulphonamide group, the two above defined groups being linked together by an aromatic or saturated ring system or by a hydrocarbon residue which may be interrupted by hetero-atoms, in which ring system or residue one or more of the hydrogen atoms may be replaced by another radical.  Examples given of the compound are N, N1-diphenylguanidine, N-phenylbiguanide, ethylene diamine, hexamethylene diamine, N-carboxy-ethylene diamine, piperazine, N, N1-dimethyl-p -phenylene diamine, N, N-dimethyl-p -phenylene diamine, p-aminobenzene sulphonamide, ethylene diamine oxalate, the N-carbamic acid salt of ethylene diamine and N, N1-diphenyl-ethylene diamine. The per-compound may be hydrogen peroxide or sodium perborate and the treatment baths may also contain magnesium or sodium silicate, sodium hydroxide, sodium carbonate, sodium bicarbonate, magnesium sulphate, a normal or anhydrous phosphate, sodium pyrophosphate or soap.  In Example 4 the fabric treated is of a mixture of nylon and viscose rayon.ALSO:Detergent compositions containing percompounds are made more suitable for the treatment of polyamide fibres by including in the compositions an organic compound which contains at least two nitrogen-containing groups, of which one is a primary or secondary amino group or an >NH group forming part of a saturated heterocyclic ring and the other or another is a primary, secondary or tertiary amino group or an >NH group forming part of a saturated heterocyclic ring or an N - carboxyamino or sulphonamide group, the two above defined groups being linked together by an aromatic or saturated ring system or by a hydrocarbon residue which may be interrupted by hetero-atoms, in which ring system or residue one or more of the hydrogen atoms may be replaced by another radical.  Examples given of the compound are N, N1 - diphenylguanidine, N - phenylbiguanidine, ethylene diamine, hexamethylene diamine, N - carboxy - ethylene diamine, piperazine, N, N1 - dimethyl - p - phenylene diamine, N, N - dimethyl - p - phenylene diamine, - p - aminobenzene sulphonamide, ethylene diamine oxalate, the N - carbamic acid salt of ethylene diamine and N, N1 - diphenylethylene diamine.  The percompound may be hydrogen peroxide or sodium perborate and the compositions may also contain magnesium or sodium silicate, sodium hydroxide, sodium carbonate, sodium bicarbonate, magnesium sulphate, a normal or anhydrous phosphate, sodium pyrophosphate or soap.
Patent GB-1451041-A (GB)
Title: Continuous process for the manufacture of propylene oxide
IPC: C07D301/06
Filed: 1975-02-10
Abstract: 1451041 Propylene oxide RHONE-POULENC INDUSTRIES 10 Feb 1975 [13 March 1974] 5604/75 Heading C2C Propylene oxide is produced in a continuous process by oxidizing propylene with molecular oxygen or an oxygen-containing gas, in the liquid phase in a solvent under superatmospheric pressure, removing a gas stream and a liquid stream from the reaction zone, washing the gas stream with a neutral ester of phosphoric acid and recovering propylene oxide from the wash liquors. Suitable solvents are, for example, monochlorobenzene, a dichlorobenzene, a trichlorobenzene or a tetrachlorobenzene. The neutral esters of phosphoric acid are those in which the three valencies of the phosphate are bonded to alkyl or aryl radicals, e.g. tri-(nbutyl)-phosphate. If desired a catalyst, e.g. a naphthenate or acetylacetonate of molybdenum, tungsten or vanadium may be present.
Patent GB-231304-A (GB)
Title: Improvements in or relating to duplex bridge systems of telegraphy
IPC: H04L5/14
Filed: 1924-03-05
Abstract: 231,304. Smart, J. H. March 5, 1924. Thermionic receivers for line telegraphy.-In a duplex bridge system with valve amplification the amplifier or the first stage thereof comprises two valves, or a single valve having the characteristics of a combination of two valves, connected across the bridge and so arranged as to eliminate unbalance effects due to the capacity and leakage to earth of the valve circuits. Fig. 2 shows a single-stage amplification. The filaments of the two valves F, F<1> are connected together, the grids are connected to the respective arm of the bridge, and the anode circuits are connected to the coils J, J<1> of the receiving relay. Fig. 3 shows a two-stage amplification with a single valve L in the second stage. The coils J, J<1> of Fig. 2 are replaced by output resistances K, K<1> which are connected as shown to the grid and filament of the valve L. The coils M, M<1> of the receiving relay are connected on one side to the anode of the valve L and on the other side through a battery N to the filament, a balancing battery N<1> being connected across the relay. The second stage of the amplification may, like the first stage, be effected by a combination of two valves, and in this case a single low-tension battery may be connected to the filaments of the four valves, and a separate hightension battery be provided in each of the anode circuits of the valves F, F<1> instead of the single high-tension battery H.
Patent GB-178644-A (GB)
Title: Improvements in or relating to means for grooving gramophone and like records
IPC: G11B17/02
Filed: 1921-02-18
Abstract: 178,644. Graham, E. A. Feb. 18, 1921. Grooving.-Consists in a device for forming upon a disc gramophone record a steep spiral groove at the inner end of, and continuous with, the sound-groove, the purpose of such an additional groove being to effect the operation of a brake in kncwn manner. The device comprises an arm d having at one end a slot d' which engages a pin b passing through a plate a. A pin e works in a spiral groove a<1> in this plate, and a grooving tool g is adjustably mounted near the outer end of the arm d. The tool g may be held by a screw h on a member i which is clamped by a locking screw provided with a thumb-lever k. In use, the base-plate a is held on the centre of the record, and the arm d rotates by hand, the required spiral groove being thus made by the cutter g.
Patent GB-975017-A (GB)
Title: Improvements in or relating to article handling means
Inventor: DEARSLEY GEORGE
IPC: A24C5/354
Filed: 1960-02-17
Abstract: 975,017. Endless conveyers. AMERICAN MACHINE & FOUNDRY CO. Feb. 6, 1961 [Feb. 17, 1960], No. 5666/60. Headings B8A and B8C. Cigarettes c pass from a conveyer 10 to a conveyer 14 from the lower horizontal run of which they are deposited row by row in successive containers 48. Suction is applied to zones 20, 22 and 36, so as to hold the cigarettes c to the belt 14. Suction is applied continuously to the zones 20 and 22 which may be isolated from the zone 36 by the action of a solenoid-operated valve 46 and partitions 40, on each of two idler rollers 34, 52 of the belt 14. When the leading cigarette on the lower horizontal run of the belt 14 reaches a detector device 42, the valve 46 is caused to close. Due to the consequent decrease in suction, the cigarettes on the horizontal run of the belt are deposited as a row in the container 48. Rods 62 maintain the cigarettes in parallel arrangement as they fall. The row of cigarettes in dropping activate a detector 66 which causes the movement of conveyer chains 68, 70, supporting the container 48 to move the latter downwards a distance corresponding to one row of cigarettes. Cam members 88 are carried by the conveyer chains 68 at respective positions corresponding to supports 86 on the chains 68 for the containers 48. Thus when a container 48 is filled with its predetermined number of rows of cigarettes, the corresponding cam member 88 engages a switch 92 to result in a rapid downward movement of the container. This makes room for a further container 48 fed by a ratchet mechanism 100 (Fig. 2). The filled container 48 is displaced laterally by a similar cam mechanism 98. Faulty cigarettes are detected at 30 and rejected by a device 32 (Fig .1). In a modification (Fig. 5, not shown) a shoot is provided between the conveyer 10 and the conveyer 14. This shoot is adapted to be deflected when the cigarette-making machine has stopped so that cigarettes will be deflected away from being picked up by the belt 14. The belt 14 is formed by two laterally spaced portions (Fig. 3) and members 72, 74, are screw adjustable so as to control the space through which suction is applied to the cigarette c. A modified construction of belt (Fig. 4) consists of triangular-shaped elements 108 having suction openings 110. An alternative construction is described (Fig. 6, not shown) which enables the space between the floor and the horizontal run of the conveyer 14 to be reduced. Instead of the containers 48 being movable step by step for each new row of cigarettes, the conveyer 14 may be movable and the associated container 48 fixed. The number of cigarettes deposited in each row may be adjusted by altering the speed of the conveyer 14 in relation to the output of the cigarettemaking machine.
Patent GB-384142-A (GB)
Title: Improvements in the production of double salts of calcium nitrate
IPC: C05C5/00
Filed: 1932-02-26
Abstract: In the preparation of double salts of the formula 5Ca(NO3)2.MeNO3.10H2O, where Me denotes ammonium or potassium, a hot solution of calcium nitrate which contains 70-82 per cent of calcium nitrate and ammonium or potassium nitrate in considerable excess over the theoretical amount required for double salt formation is brought to crystallization by slow cooling and the crystals formed separated from the still hot mother liquor.  1,2-2,5 mols. of ammonium or potassium nitrate may be used for each 5 mols. of calcium nitrate present, and crystallization of the double salt may be promoted by seeding.  The mother liquor may be returned to the process, and the double salt be partially or completely dehydrated by heat.
Patent GB-180420-A (GB)
Title: Improvements in water purifiers
IPC: C02F1/52
Filed: 1921-02-21
Abstract: 180,420. Gail, J. B., and Adam, N. Feb. 21, 1921. Purifying liquids.- Water - purifying apparatus comprises a lime-saturator and a tank for treating the water with lime and a second reagent, in both of which receptacles agitation is caused by air introduced by means of siphons which supply water to the receptacles. The saturator 1, Fig. 5, is supplied with water by a siphon 12 through a pipe 10 reaching nearly to the bottom of the vessel. Slaked lime is supplied at intervals to a tube 2, surrounding the pipe 10, from a tank 6 which is furnished with a perforated vertical tube 7. The pipe 10 has a branch 10<1> open to the atmosphere, so that at each discharge of the siphon, air is introduced to agitate the contents of the saturator. Saturated lime water overflows into a tray 14 from which it passes to the vessel. The treatment vessel 16, Fig. 8, has a supply siphon and pipe 19 similar to those of the saturator. The pipe 19 opens at the bottom under a bell 22 from which mixing tubes 23 extend upwards. These are surrounded by a tube 25 open at the lower end. The tank has a false bottom 20, perforated except at the centre beneath the tube 25. Lime solution and a second reagent are supplied to the pipe 19 through pipes 15, 26 respectively. At each discharge of the siphon air enters and causes agitation of the mixed liquids in the bell 22, tubes 23 and tube 25. Solid matter settles and passes through the perforations of the base 20. The treated water rises through a filter 28. Fig. 10 shows a form of the apparatus in which the saturator 1 is situated within the vessel 16. A tank 30 is provided for the solution of the second reagent which may be carbonate of soda, aluminium sulphate or ferric sulphate or chloride. A uniform solution of this reagent may be obtained by repeatedly withdrawing a portion and pouring it back into the tank, or a pump and suitable piping may be provided so that the solution may be circulated. The crude water is received in a tank 35 from which it passes to the treatment vessel 16, to the lime saturator 1 and to the solution tank 30 in proportions fixed by the size of orifices 42, 44, and 46 in the base of the tank 35. The water passing to the saturator and to the tank 30 displaces to the pipe 19 the quantities of lime-water and solution requisite for the treatment. A conical tray 20<1> is provided in place of the false bottom 20 in the vessel 16. The entry of water to the tank 35 is controlled bv a valve the lever of which is connected to two floats, one in the tank 35 and the other in a chamber through which the purified water is passed.
Patent GB-1038960-A (GB)
Title: Improvements in or relating to sewing machines
IPC: D05B29/06
Filed: 1965-02-11
Abstract: 1,038,960. Sewing machines. G. M. PFAFF A. G. Feb. 11, 1965 [Feb. 12, 1964], No. 5899/65. Addition to 920,552. Heading D1G. In a sewing machine for simultaneously connecting together a pair of superimposed fabric layers and forming an overedge seam on each of the two edges of the fabric layers, members positioned in front of the overedge seam needles for deflecting each fabric edge separately away from the needle producing the overedge seam on the other fabric edge are mounted on the looper carriers for the overedge seams. The machine is a modification of the machine described in the parent Specification. The connecting seam is formed by a straight needle 9 co-operating with a threaded looper 25 carried by an arm 24 rigid with a shaft 23 receiving oscillatory and reciprocatory motion. The overedge seams are formed by curved needles 78, 79 carried by respective oscillatory arms 76, 77 and co-operating both with respective threaded under-loopers 53, 54 carried by an arm 51 rigid with an oscillatory shaft 50, and also with respective unthreaded overedge loopers 41, 42 carried by an arm 40 rigid with a shaft 39 (not shown) receiving oscillatory and reciprocatory motion, the stitch length of the overedge seams being twice that of the connecting seam. The modification consists in providing an arm 51 an abutment 52 to deflect the lower fabric layer downwards in front of the leading needle 79 forming the seam on the edge of the upper layer, and an arm 40 on abutment 43 to deflect the upper fabric layer upwards in front of the trailing needle 78 forming the seam on the edge of the lower layer. Reference has been directed by Comptroller to Specification 998, 425.
Patent GB-837196-A (GB)
Title: Improvements in electric calculators
IPC: G06F7/504
Filed: 1956-02-25
Abstract: 837,196. Digital electric calculating-apparatus. DIRKS, G. May 24, 1957 [Feb. 25, 1956], No. 5937/56. Class 106 (1). In an electric calculator digits of recorded numbers are sensed, one denomination at a time, from a cyclic store and, in the form of two interspersed pulse trains are processed in an arithmetic unit, the output signals from which are recorded in the store in place of at least one of the sensed numbers. Operands are recorded in tracks 2, 3 of a magnetizable drum 1, Fig. 1, by frequency recordings of different lengths indicating the digit values, a low-frequency recording 14, 15 being followed by a high-frequency significant signal 12, 13. The tracks are divided into denominational sectors 71 each of which is divided into two subsectors. In tracks 5 and 6 pulse groups 16<SP>1-n</SP> and 17<SP>1-n</SP> are provided by local magnetization or permanent means such as magnetic inserts and, when sensed by heads 18 and 19, are staggered relative to each other so that they can be fed to a single counting stage 24 without mutual interference. However, the gates 22, 23 leading to the counting stage are controlled from the reading heads 25, 26 and are open only during the high-frequency periods 12, 13 representing digit values. Thus, the counting stage 24 receives two interspersed groups of pulses representing the two digits to be added. If their sum is greater than nine a trigger circuit 32 is set by the counter and opens a gate 37 which allows a single pulse 351-n in track 4 to be picked up and counted into the next higher order. The result registered in the counter 24 at each denomination allows, through a gate 54, an equivalent supply of high-frequency signals from a source 55 to reach a recording head 52. Otherwise low-frequency signals from a source 50 are recorded. Details of component circuits are also described. The apparatus may be adapted for binary addition. Subtraction by complementary addition is described.
Patent GB-1070043-A (GB)
Title: Process for the preparation of isocyanato-carboxylic acid chlorides
Inventor: DRIMM HEINRICH
Filed: 1966-02-10
Abstract: Isocyanato-carboxylic acid chlorides are prepared by reacting an amino carboxylic acid with at least one mol. phosgene, for each amino and for each carboxyl group in the acid, in an inert solvent and in the presence of a tertiary amine.  Preferred amino carboxylic acids are those of the formula (NH2)m-R-(-COOH)n where R is a di-, tri- or tetra-functional radical which may be substituted, e.g. by alkoxy or halogen groups, and m and n are 1 or 2.  The tertiary amine, which may be an aromatic, aliphatic or heterocyclic amine, is preferably used in stoichiometric quantities.  Suitable solvents are aromatic hydrocarbons and chlorinated hydrocarbons.  The reaction is preferably effected at 80-120 DEG  C.  Examples relate to the preparation of 6-isocyanoto-caproic acid chloride, 11-isocyananoto-undecanoic acid chloride, 4-isocyanoto-benzoyl chloride, 3-isocyanato-benzoyl chloride and 4-isocyanoto-phenyl-acetyl chloride.
Patent GB-151532-A (GB)
Title: Improvement relating to the wheels of agricultural implements and the like
IPC: B60B27/00
Filed: 1920-02-27
Abstract: 151,532. Nicholson, A. C. Feb. 27, 1920. Spokes, securing; hubs.-In wheels for agricultural implements, the spokes D are secured between a flange on the cast metal boss B and a cast metal plate C with a closed hollow boss F forming an axle cap. The plate C and the flange of the boss B are connected by bolts E or rivets.
Patent GB-583065-A (GB)
Title: Improvements in circuit arrangements for sorting impulse voltages, particularly adapted to radio echo direction finding systems
IPC: G01S7/292
Filed: 1943-04-13
Abstract: 583,065. Radiolocation; pulse generating circuits ; thermionic distributors. BRITISH THOMSON-HOUSTON CO., Ltd., and MACKENZIE, T. H. April 13, 1943, No. 5942. [Class 40 (v)] Voltage impulses are applied in succession to a single input circuit and directed into a plurality of separate channels after conversion into pulses of rectangular wave form having a duration proportional to the amplitude. The pulses are utilised to control the duration of the flow of current into or out of storage condensers appropriate to the channel and means are provided to maintain a current flow accurately at a predetermined value for each channel. The invention is applicable to radio echo direction finding systems in which the direction of the target is obtained by using the " split " principle. In this system the electrical axis of the transmitter aerial is given a small periodic motion about its mean position and the magnitudes of the received echo signals at various momentary directions are compared and the electrical axis of the system as a whole moved to bring the stored channel voltages to equality in pairs. In this way the electrical axis is caused to coincide with the direction of the target. The Figure shows an arrangement in which negative pulses are applied through a linear amplifier 2, transformer 9 and diode 12 to charge a condenser 11. The condenser is discharged through a resistance 14 reducing the anode potential of a valve 13 in a substantially linear manner with time until the knee of the valve characteristic is reached when the grid potential rises rapidly. In this way rectangular pulses of a length dependent on the amplitude of the input amplitude are developed at the anodes of the valve 15, and are applied to valves 28-31 to charge the respective condensers 35-38. The distribution between the valves 28-31 is under the control of voltages, 90 degrees out of phase with one another fed to transformers 26, 27 to determine the channel switching cycle which in the application described is the time of revolution of the aerial system about its axis. The valve 16, to the grid of which the potential of the cathodes of valves 28-31 is applied, limits the pulse amplitude since it has a common load resistance with valve 15, when it becomes conducting.
Patent GB-539751-A (GB)
Title: Improvements in and relating to means for saving life
IPC: B63C9/20
Filed: 1940-04-03
Abstract: 539,751. Buoy signals. GENERAL ELECTRIC CO., Ltd., ELLIS, G., and SAUNDERS, C. W. April 3, 1940, No. 6013. Drawings to Specification. [Class 118 (ii)] [Also in Group XI] A float illuminated by a battery lamp which is energized only when the device is inverted on assuming its floating position, is provided with a gravity switch which in the inverted position moves, with an appreciable delay action, into the closed position. The delay action is effected by mounting the movable switch member so that it slowly descends a quick pitch spindle. In this way unintended closure due to the rolling of the ship (when the float is aboard and not in use) is avoided. The construction is that described in Specification 538,088.
Patent GB-852295-A (GB)
Title: Window or like frames
Inventor: MANTLE PAUL ANTHONY
IPC: E06B3/58
Filed: 1958-02-25
Abstract: 852,295. Glazing. HOPE & SONS Ltd., H. May 6, 1959 [Feb. 25, 1958], No. 6018/58. Class 20(3) In a window &c. frame a for buildings or vehicles in which a panel c e.g. of glass is secured by means of separately formed retaining strips d which are engaged with grooves b in the frame, securing screws f are combined with the strips d and the frame members provide surfaces against which the screws f can abut for securing the strips. In Fig. 2, the strips d are of stepped cross-section so that the adjacent face is flush with the frame. In Fig. 3, the groove b is formed in the frame a at right angles to the plane of the pane c and the strip d has formed in it a longitudinal groove into which engages a part g of the frame a the upper face of part g being engaged by the screw f.
Patent GB-470864-A (GB)
Title: Asphaltic product and method of producing same
IPC: C10C3/04
Filed: 1936-02-28
Abstract: Artificial asphalt is obtained by treating a petroleum residual oil with two or more solvents one of which dissolves the paraffinic components and another the naphthenic components, separating the naphthenic extract which is then steam-refined or blown with a gas containing free oxygen.  Selective solvents specified are cresol, phenol, dichlorethyl ether, nitrobenzene, chloraniline, benzyl alcohol, furfurol or phenetidine, used in conjunction with propane. Extraction may be effected by treating the oil with the two solvents flowing in counter-current as described in U.S.A. Specification 1,912,349.  The naphthenic extract may be blended with other asphaltic-base petroleum oil before blowing, or the oils blown separately and then mixed. Products of high ductility and of low temperature-susceptibility are obtained.