baber/WOPTO huggingface dataset:
Patent GB-269283-A (GB)
Title: Improvements in and relating to change-speed gears
IPC: F16H61/02
Filed: 1926-02-18
Abstract: 269,283. Hunt, W. Feb. 18, 1926. Variable-speed gearing; shaft couplings.-A. change-speed gear which is controllable optionally either manual v or automatically in accordance with load is combined with one or more screw yielding couplings. In the arrangement shown, the speed changes are effected by sliding the driving-shaft X longitudinally, which may be done either by a governor or by a hand-lever M. A countershaft Z carries gears A<2>, B<2>, C' meshing with gears A<1>, B' loose on the shaft X and with a gear C<2> free-wheel mounted on a driven shaft Y. The gear A<2> is free-wheel mounted. In the configuration shown, the lowest speed is operative through a clutch D and train A<1>, A', C', C<2>. If the speed increases, the governor moves the shaft X to the right when clutch E engages and the pair B<1>, B<2> replaces the pair A<1>, A<2>, the gear A<2> over-running the shaft Z. On further increase of speed, a clutch member F on the shaft X engages a clutch frame G on the shaft Y. yielding a direct drive, the toothed rims A', C' overrunning their shafts. There may be a governor for each clutch, and the clutches may be nested, one within the other. The coupling comprises a frame U fast on the shaft Y which turns loose on the screwed tail shaft W, and carries with it as it rotates a nut T screwing on the screw W. On increase of resistance, the nut T screws along compressing springs R until the increased torque is transmitted. This shock-absorbing structure forms a unit, which may be used with each clutch, or with some of them.
Patent GB-1000083-A (GB)
Title: Improvements in or relating to the production of 1,1,1-trifluoro-2-chloro-ethane
Inventor: SCIPIONI ANDREA
IPC: B01J21/00
Filed: 1962-02-07
Abstract: A process for making 1 : 1 : 1 : trifluoro-2-chlorethane comprises reacting in the gaseous phase at an elevated temperature not above 450 DEG  C., symmetrical tetrachlorethane and HF in the presence of a halide of Cr, Co, Ni or Mn (or a mixture thereof) on an at least partially fluorinated Al2O3.  In an example products other than CF3-CH2Cl are CCl2=CHCl, CFCl2-CH2Cl CFCl=CHCl, CF2Cl-CH2CL and CF2=CHCl.
Patent GB-579350-A (GB)
Title: Improvements in electrolytic recording materials and processes for manufacturing them
IPC: B41M5/20
Filed: 1944-03-14
Abstract: 579,350. Electrolytic recording. FORRESTER, H. J. C. (Faximile, Inc.). March 14, 1944, No. 4716. [Class 41] [Also in Group XIX] A recording carrier or sheet of an electrolytic recording device that can be stored for some time previous to being used, is impregnated with a material consisting of a lake-forming aromatic compound, an electrolytically conductive salt of a strong base (other then an ammonium salt), water, and an acid more highly ionised than the lake-forming aromatic compound, e.g., pyrocatechin, sodium nitrate, potassium chloride, oxalic acid and water. The acid is in sufficient quantity to give the electrolyte a pH value of between 2 and 4, and is approximately 2 to 4 per cent. by weight of the solid material used. The process of recording is effected by scanning the carrier with an electrode partly composed of a lakeforming metal such as iron, chromium, copper or nickel and by passing the recording current through the electrode and the carrier. The electrolyte is such that a strong base is formed by the passage of the current. Hydroxyl ions thus formed appear in the carrier at the point opposite the electrode and, diffusing through the carrier, neutralize the acid at this point, thereby allowing the colour lake to form. Specification 536,645, [Group XL], is referred to.
Patent GB-1493468-A (GB)
Title: Deflection linearity correction circuit
IPC: H03K4/62
Filed: 1975-02-04
Abstract: 1493468 Cathode-ray tube deflection circuit INTERNATIONAL STANDARD ELECTRIC CORP 4 Feb 1975 [4 Feb 1974] 4747/75 Heading H3T A resonant return electron beam deflection circuit of the type shown has a shaping circuit comprising a switching means 28, connected across the S-shaping capacitor 26 to remove charge during retrace which is replaced at a relatively constant rate during the following scan period. As shown a one-shot pulse generator 30 is triggered by the synch pulses 10 and has a duration set by variable resistor 38 to withdraw an adjustable amount of charge during the retrace. The result is that the voltage across the capacitor which is centred around the supply voltage V increases during the scan so that the scanning rate progressively increases. Capacitor 20 may be connected from point B to earth instead. Amplifier 14 is optional.
Patent GB-917783-A (GB)
Title: Production of 6-aminopenicillanic acid
Inventor: WEITNAUER GUSTAVO ADOLFO
IPC: C07D499/42
Filed: 1960-02-10
Abstract: 6-Aminopenicillanic acid is produced by subjecting phenoxymethyl penicillin to the activity of an amidase enzyme preparation derived from the internal organ of an animal, such as ox kidney.
Patent GB-838421-A (GB)
Title: Combined carrier vehicle and combine-harvester unit
IPC: B60S9/14
Filed: 1957-02-13
Abstract: 838,421. Thrashing-machines. CLAES, A., and CLAES, F., [trading as CLAES GEB.]. Feb. 13, 1957 [July 14, 1956], No. 4856/57. Class 6(3). In a combined harvester unit and carrier vehicle, the carrier vehicle comprises an opensided, rectangular framework 4 which may be provided with a removable fourth member for closing the rectangle, and the harvester unit comprises two, inverted U-shaped members 16 for engagement with the supporting frame, the two units being secured together by quickrelease locking means (not shown). In order to mount the harvester unit upon the carrier vehicle, the former is provided with wheeled, collapsible and removable jacks 10 whereby it may be moved through the open side of the framework 4 to a position where the members 16 lie above the frame. Upon moving both the carrier vehicle and the harvester unit in the direction 7, the jacks pivot about the points 11, the struts 14, 15 of the jacks collapse, and the members 16 fit over the frame 4, whereupon the jacks may be removed. In order to detach the harvester unit, the process is carried out in the reverse order.
Patent GB-895080-A (GB)
Title: Improvements in or relating to devices for punching record cards
IPC: G06K13/063
Filed: 1960-02-11
Abstract: 895,080. Selective punching machines. COMPAGNIE DES MACHINES BULL. Feb. 11, 1960 [Feb. 17, 1959], No. 4934/60. Class 31 (2). A machine for punching record cards line-byline or column-by-column comprises two symmetrically-disposed movable supports 130 each carrying parallel flexible blades 131 the edges of which bear on a guide plate 160, each support having a reciprocating oscillating movement imparted thereto so that the edges of successive blades 131A to 131L, Fig. 5, push the rear edge BA of a record card 20 to advance the card lineby-line or column-by-column to a row of punches 31, means 161, Fig. 4, secured to the punch guide 52 for preventing the card from returning to the rear during the return movement of the support, and means for selectively actuating the punches to punch the card during the return movement of the blades. The non- return means 161 comprises an inclined surface 168 against which a roller 166 is pressed by means of a resilient blade 167. Additional braking blades 162A, 162B are fixed to the punch guide 52 to ensure sufficient braking of the cards by bearing on them at the passage of the last record lines or columns through the punching means. The card is fed to the position shown in Fig. 4 by means of rollers 28A, 28B, the roller 28B being provided with a recess 28E. The reciprocating oscillating movement is imparted to each support by means of a connecting-rod 149 driven by means of an eccentric crank-pin 150 on a motor-driven shaft. Each support, which is adjustable both vertically and horizontally, is provided with two transverse bars 134, 135, Fig. 5, by which it is suspended on each side to fixed guide-plates 133 with the aid of springs 136 to 139. The punches are selectively actuated by means of a cam-operated depresser bar 83 through spring-influenced interposers 100 controlled by electromagnets 91. The depressed punches are raised by means of a cam - operated extraction bar 120. Various forms of feed blades are described.
Patent GB-1457477-A (GB)
Title: Capacitors
IPC: H01G13/02
Filed: 1975-02-06
Abstract: 1457477 Capacitors ILLINOIS TOOL WORKS Inc 6 Feb 1975 [7 Feb 1974] 5033/75 Heading H1M A capacitor is constructed by winding, using as mandrel two wires 13, 14 which will constitute lead wires of the finished capacitor, a strip 18 of dielectric material metallized on both surfaces and a strip 32 of unmetallized dielectric material, there being interposed between each wire and the respective metallized surface a short strip 21a, 26a of metal foil, strip 32 being held in position by a further mandrel member 40 which takes part at least initially in the rotation and is removed during or after the winding. Apparatus for carrying out the winding comprises, as shown in Fig. 2, supply rolls 17, 31 for the metallized and unmetallized strips respectively, means 24, 43 and 29, 44 for holding the leading ends of metal foil strips 21, 26 as they are being cut to short lengths and means 46, 47, 48 for advancing wires 13, 14 and mandrel member 40 into the winding position. An extra length of unmetallized dielectric strip is wound round the finished roll and heat-sealed.
Patent GB-402104-A (GB)
Title: Improvements in the production of filaments, yarns, fabrics and like materials
IPC: D01F2/28
Filed: 1932-02-19
Abstract: Filaments, threads, yarns, or the like of organic esters of cellulose, which at some stage of their manufacture have been stretched, or fabrics containing the same, are saponified by applying the saponifying agent to the materials while they are travelling and immediately drying under the influence of heat to effect rapid saponification.  The products have a high tenacity and an affinity for cotton colours.  The stretching, which should preferably produce an extension of the yarns of the order of 200 to 500 per cent. or more, and a tenacity exceeding 1.5 gms. per denier, may be carried out according to the process of Specification 277,089, 323,790, [both in Class 2 (ii), Cellulose &c.], or 370,430, or simultaneously with the production of the yarns by the process of Specification 340,324, 340,325, 340,326, 340,436, 340,437, 343,062, or 378,858.  The saponifying agent may be applied to the travelling materials by bath treatments or padding methods, the drying being effected by passing the materials over heated rollers, as in Specifications 316,521 and 318,468, [both in Class 2 (ii), Cellulose &c.].  The extent of saponification may vary from 5 to 20 or 50 per cent. up to substantially complete elimination of the ester groups.  If desired, the yarns may be subjected to treatment with shrinking agents to improve their extension, for example, by the process of Specification 380,504, 380,505, or 389,823.  In an example, a warp of stretched yarns of cellulose acetate is padded with a 10 per cent. aqueous solution of caustic soda so that the yarn retains its own weight of liquid, and is carried directly to a series of steam heated rollers as described in Specifications 316,521 and 318,468.  The first Provisional Specification refers also to Specifications 125,153, 313,404, [both in Class 2 (ii), Cellulose &c.], and 371,461.
Patent GB-217952-A (GB)
Title: Method of and means for discharging heat-storage chambers containing hot liquid and used in steam power and heating plants
IPC: F01K21/02
Filed: 1923-02-21
Abstract: 217,952. Ruths, J. K., (known as Ruths, J.). Feb. 21, 1923. Engines combined with steam generators.-A heat storer containing a large body of water heated by surplus steam from a plant is discharged by drawing off the water and allowing it to evaporate by reduction of pressure, the energy thus set free being used to drive a reciprocating engine or turbine, or to compress a part of the steam to a higher pressure. Hot water taken from a storer a to drive an engine c, Fig. 4, is admitted to the cylinder of the engine beneath the piston d. The engine may drive a compressor o which compresses the engine exhaust. The engine exhaust may be condensed and returned to the storer. Hot water from the storer may be evaporated in an expanding nozzle s, Fig. 5, and the steam used to drive a turbine u. The water may be rotated by inclined blades or a propeller r at the entrance to the nozzle. Water is led off from the nozzle through a pipe x. This water may drive a turbine placed between the nozzle and the guide vanes t. Steam from the nozzle may be compressed in a contracting nozzle before entering the turbine.
Patent GB-1082917-A (GB)
Title: Stable aqueous solutions of wet strength resins
Inventor: COSCIA ANTHONY THOMAS
IPC: D21H17/55
Filed: 1966-02-04
Abstract: An aqueous solution of a thermo-setting polyiminopolyamide / epichlorohydrin adduct suitable for imparting wet-strength to paper is prevented from gelling by complexing the adduct with a metal ion having a charge density greater than that of Na+. The polyiminopolyamide may be derived from adipic acid and diethylene triamine and the complexing metal may be added as one of its salts, e.g. CaCl2, MgCl2, ZnCl2, AlCl3, CrCl3, FeCl2 or LiCl.  The salt may be added in stoichiometric excess, e.g. 10-50%, with or after the epichlorohydrin to a solution of the polymer of at least 10% concentration which is at room temperature.  The treated resin solution may be adjusted to a pH between 4 and 7.  Reference has been directed by the Comptroller to Specification 865,727.ALSO:An aqueous solution of a wet-strength paper additive, comprising a thermosetting polyiminopolyamide/epichlorohydrin adduct, is prevented from gelling by complexing the adduct with a metal ion having a charge density greater than that of Na+. In Example 2 and adduct of epichlorohydrin and a polyiminopolyamide derived from diethylene triamine and adipic acid is added to an aqueous suspension of bleached northern kraft pulp which is then made into sheets and dried.  The procedure is repeated with the same polymer in admixture with CaCl2.  Reference has been directed by the Comptroller to Specification 865,727.
Patent GB-588591-A (GB)
Title: Improvements in two-way loudspeaking telephone systems
IPC: H04M9/08
Filed: 1945-03-01
Abstract: 588,591. Two-way transmission. BOLINDERS FABRIKS AKTIEBOLAG, and OSTLUND, J. E. March 1, 1945, No. 5106. [Class 40 (iv)] In a two-way loud-speaking telephone system employing a microphone and a loud-speaker at each location and separate amplifiers for each direction, an output from either amplifier automatically increases the gain of the operative amplifier and decreases the gain of the other amplifier. In the Figure, the input to one amplifier passes from a transformer 1, through the hexode portion of a triode-hexode 3, tu a pentode output valve 4, and the other input passes -through the similar amplifier shown below the central negative line. Part of the output of the upper amplifier, taken through a condenser 6, is fed across a rectifier 8 and the resultant negative voltage is applied to the triode grid 9a of the valve 3a in the lower amplifier and also to the outer control grid 10a of the hexode, the latter causing a reduction of the gain of this amplifier. The anode voltage of the triode rises at the same time owing to the presence of resistor 11a and this is applied to the screening grid of the valve 3, so increasing the gain of the upper amplifier. A precisely similar arrangement is provided in the case of the lower amplifier.
Patent GB-706985-A (GB)
Title: Improvements in or relating to silencing devices for suction-operated motors
IPC: F16K15/14
Filed: 1951-03-02
Abstract: 706,985. Check valves. O'SHEI, W. E. May 29, 1952 [March 2, 1951], No. 5133/51. Class 135. [Also in Group XXVII] A self-opening valve 10 of flexible material, such as rubber, rexine or leather, has a dished portion provided with a slit 11 which is normally closed due to the resilient nature of the valve and is used for silencing the flow of air passing into a suction-operated windscreen-wiper motor, (see Group XXVII). The valve is held together with a metal washer 13 in an aperture 6 in a cover 7 of the motor and by peened-over portions 14 of the cover. In a modification, the valve has a slit 11 which remains permanently open but which is more fully opened by the flow of air.
Patent GB-744127-A (GB)
Title: Improvements relating to circuit arrangements embodying cathode ray tubes
Inventor: MOSS HILARY
IPC: H01J29/58
Filed: 1951-03-03
Abstract: 744,127. Cathode-ray tubes. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Feb. 14, 1952 [March 3, 1951], No. 5184/51. Class 39 (1). The voltage applied to the first and second anodes 4, 5 of a cathode-ray tube 1 are in such ratio that when the E.H.T. voltage varies the focal plane of the electrostatic lens varies in opposition to the change in of the focal plane of the magnetic lens 7, e.g. a coil or permanent magnet. The E.H.T. on the second anode 5 and the wall anode 6 may be 8 kv. and the voltage on first anode 4 about 1 kv. Specification 665,094 is referred to.
Patent GB-985021-A (GB)
Title: Improvements in electrical single pin plugs
Inventor: BELL DENNIS WILLIAM
IPC: H01R13/434
Filed: 1964-02-07
Abstract: 985,021. Two-part couplings. BELLING & LEE Ltd. Feb. 7, 1964, No. 5189/64. Heading H2E. An electrical connector comprises a pin portion 1 (Fig. 2) which passes into a bored member 14, and is held there by stop means 4, 8, one of which means (4) is supported on the pin 1 and is compressible to pass through the bore of the bored member and acts as a stop therefore when released. The stop means 4 is formed from a metal sheet, disposed in split 3 in pin 1 and having its projecting parts bent round the pin in half-cylindrical shapes. The other end of pin 1 is formed into four prongs 11, 12 between which the end of a conductor 23 may be inserted. Prongs 11, 12 are compressed on to the conductor 23 by a tapered sheath 22, forced on by screwing an insulating cap 19 on to the insulating member 14.
Patent GB-591052-A (GB)
Title: Improvements in or relating to electric valve control systems for a.c. circuits
IPC: B23K11/24
Filed: 1944-03-21
Abstract: 591,052. Control systems for resistance welding &c. BRITISH THOMSONHOUSTON CO., Ltd. March 21, 1944, No. 5234. Convention date, March 23, 1943. Addition to 588,656. [Class 38 (iv)] The current supplied from an A.C. source 18 to a load, such as a welding transformer 17, through ignitrons 19, 20 is maintained constant by a diode 86 having a filamentary cathode which is heated according to the load current, and an excitation circuit 31, comprising discharge tubes 91; 92 and peaking transformer 29, for providing firing pulses for the ignitrons, the phase of the pulses being controlled by the conductance of the diode. The diode forms part of a grid bias circuit for a valve 80 constituting one arm of a bridge 75-77, 79, 80 supplied from a D.C. source 69 through resistor 78, so that change of conductance of the diode varies the D.C. bias. supplied to the tubes 91, 92 from the points 42, 43 of the bridge and thus varies the point in each half-cycle of voltage at which transformer 29 is pulsed. Cathode heating current for the diode, in dependence upon the load current, is supplied by current transformers 51, 49 over contacts 59 of a relay 47, energized by transformer 51. Variable resistors 55, 56 permit adjustment .of the cathode current relatively to the load current. During non-load periods, relay 47 is de-energized and its contacts 66 close a cathode heating circuit including transformer windings 61, 63 and an adjustable resistor 60, whereby.the first few cycles of subsequent load current may be controlled. Winding 61, which is on a transformer 62 of the regulating type, together with winding 63 of a normal transformer 64 provide a resultant voltage such that the initial cycles of load current are substantially independent of supply line voltage fluctuations. Hold-off bias for pilot tubes 24, 25 controlling the firing of'the ignitrons is provided by a transformer 33. A further transformer 35, in the bias circuit and under the control of a timer 36, is energized upon closure of a switch 37 for initiating energization of the load circuit and reduces the bias to a value which can be overcome by the pulses from transformer 29. The tubes then conduct and fire the ignitrons.
Patent GB-1490832-A (GB)
Title: Self-cleaning filter for removing suspended matter from a liquid
IPC: B01D29/64
Filed: 1976-02-10
Abstract: The filter contains a vessel (1) in which are arranged at least two filter partitions (2) which subdivide the interior of the vessel (1) into sections lying parallel to each other. The filter further contains apparatuses (7) for backwashing the filter partitions (2), each of these apparatuses (7) having a hollow housing (11). A grind-in plate (16) connects to the open side of the housing (11). In the housing (11) is constructed an annular groove (15), that is on the entire periphery of the side of the housing facing the filter partition (2), the bottom of the annular groove (15) having continuous boreholes (18). The grind-in plate (16) is arranged in this annular groove (15), a chamber (17) being present between its end surface (K) and the bottom of the groove (15), which chamber is connected to the section (3) for contaminated liquid by the boreholes (18). In such a filter, tilting of the grind-in plate is excluded and the grind-in plate lies sealed on the filter partition (2). <IMAGE>
Patent GB-389974-A (GB)
Title: Improvements in or relating to the manufacture of double or folding collars or cuffs
IPC: D03D1/00
Filed: 1932-02-22
Abstract: 389,974. Collars for personal wear. HARDING, TILTON, & HARTLEY, Ltd., Kinnaird House, Pall Mall East, London.- (Assignees of Akt.-Ges. G. Metzger, Wõsche & Kragenfabrik Basel; 108, Jakobstrasse, Basle, Switzerland.) Feb. 22, 1932, No. 5308. Convention date, Oct. 24, 1931. [Class 141.] Double or semi-stiff collars or cuffs with a natural fold line are made by cutting up a fabric formed with fold lines for several collars, the blanks for which are stamped out in the manner shown so as to waste as little as possible of the fabric. The fold lines are spaced transversely at such distances as to provide narrow strips 2 of twice the width of the inner portion of a collar and wider space 5 of twice the width of the outer portion of a collar. The fabric may, as shown in Fig. 2, comprise upper and lower plies of weft threads 9 and warp threads 10, intermediate filler warps 11 and binder threads 12 for holding these in position. At the narrow parts 2, the warps 11 may be omitted to form the fold lines, but these may, alternatively, be formed by the use of thinner or thicker warp threads in either or both plies. In modifications, the weave in the whole of the areas forming the neck portions 4 of the collars may differ from that in the areas &c. forming the outer portions of the collars, which may comprise thinner or thicker and if desired better quality warp threads, the junction between the two different weaves forming natural fold lines. Threads of different colour to that of the body portion may be woven on the fold lines to indicate these, and they may be visible from one side only. The fabric may be woven, as shown in Fig. 5, with interwoven warp and weft threads 13, 14, packer warp threads 16, additional weft threads 15, and binder warps 17, the warp threads 16 being omitted in parts to form the fold lines. Other weaves for the fabric are described.