baber/WOPTO huggingface dataset:
Patent GB-624435-A (GB)
Title: Improvements in or relating to radio receiving apparatus
IPC: H03G11/04
Filed: 1946-06-04
Abstract: 624,435. Radio receiving systems; limiters. P.R.T. LABORATORIES, Ltd., and FELDMANN, P. A. June 4, 1946, No. 16999. [Class 40 (v)] An arrangement for limiting noise impulses, more particularly for use in television receivers, comprises a diode D2 or other unilaterally conducting device connected in series between the detector D1 and load resistor 3. The diode D2 is biassed over a high resistor 12 to conduct for signals of amplitude less than a predetermined level and to be non-conductive for greater amplitudes. The effect of the bias upon the detector D1 is compensated by means of a corresponding bias derived from the potentiometer 5, 11. In a modified arrangement (the drawing accompanying the Provisional Specification, not shown), the limiting level is varied according to the mean value of the signal by returning the resistor 12 to the resistor 5 and the resistor 11 to a tap on the cathode resistor 8 of a subsequent amplifying stage.
Patent GB-917855-A (GB)
Title: Improvements in or relating to toothed gearing
Inventor: ZINK HEINRICH
IPC: F16H1/28
Filed: 1959-05-20
Abstract: 917,855. Toothed gearing. ZAHNRAEDERFABRIK RENK A.G. May 20, 1959, No. 17074/69. Class 80 (1). In an epicyclic or countershaft gear arrangement having double helical gears, a bearing- less sun gear or central gear is connected to a drive-shaft and an annular gear surrounding the planet gears or counter shaft gears is resiliently mounted in its supporting member. As shown in Fig. 1, a divided sun gear comprises a part 1a integral with a shaft 4 and a part 1b integral with a hollow shaft 26, the shafts 4 and 26 being connected near their ends by a toothed coupling 27. Planet gears 2a, 2b are axially coupled by collar 19, 20, a space 21 being formed between them into which lubricant is forced. An annular gear 5 is mounted in a housing 8c by sets of springs 18 accommodated in recesses 18<SP>1</SP> and 18<SP>11</SP> formed in the housing and gear, respectively. A driven shaft 6 has a flange of the planet carrier formed integral therewith. In a modification, Fig. 3, cylindrical leaf-springs 18a, 18b, 18c retained by pins 31 are disposed between the gear 5 and housing 8c. In a further modification, shown in Fig. 2, a toothed coupling- member 14 connects a driving gear 15 with an undivided sun-gear 1. Fig. 4 shows an arrangement employing stepped planet gears 2<SP>1</SP>, 211 and axial damping means for the annular gear comprising rings 10 and axial o impression springs 11. Fig. 7 shows an arrangement of countershaft gearing in which an annular gear 5 is resiliently mounted in a housing 34 attached to a driven shaft 33 by springs 18.
Patent GB-530449-A (GB)
Title: Improvements in or relating to 'containers' for use with road, rail or water-borne vehicles
IPC: B65D90/02
Filed: 1939-06-10
Abstract: 530,449. Road &c. vehicles. LEVER BROS. & UNILEVER, Ltd., and WALTON, J. B. June 10, 1939, No. 17084. Addition to 511,561. [Classes 103 (iv) and 108 (i)]. A container for use with a road, rail or waterborne vehicle comprises a detachable, interchangeable vehicle body of the precise form described and claimed in the parent Specification but provided with slinging means consisting of shaped members 59 and longitudinal ones 60 and instead of a roller door at the back, double doors, not shown, may be used.
Patent GB-874607-A (GB)
Title: Improvements in and relating to purification of carbon tetrachloride
IPC: C07C17/38
Filed: 1960-05-16
Abstract: Crude carbon tetrachloride containing carbon disulphide, sulphur chloride and chloroform is purified by adding, in the presence of a chlorination catalyst, chlorine thereto in amount sufficient to convert all the sulphur compounds to sulphur hexachloride, agitating the chlorinated material with an aqueous alkaline solution to remove the sulphur hexachloride, separating the carbon tetrachloride from the alkaline solution, photochlorinating the carbon tetrachloride to convert the chloroform present to carbon tetrachloride, washing the photochlorinated material with an aqueous alkaline solution to neutralise the hydrogen chloride formed, and separating the carbon tetrachloride from the alkaline solution.  Preferred alkaline washes are solutions of alkali metal hydroxides and carbonates or alkaline earth metal hydroxides, especially NaOH solutions of pH 8-11. Preferred chlorination temperatures are 40-75 DEG C. for the first, and 40-60 DEG C. for the second (photo) chlorination.  The removal of sulphur hexachloride by means of the alkaline wash is preferably effected at 50-60 DEG C.
Patent GB-213483-A (GB)
Title: Improved portable apparatus for producing and applying electric currents for therapeutic purposes
IPC: A61N1/32
Filed: 1923-07-03
Abstract: 213,483. Firpo, C. July 3, 1923. Addition to 201,135. Electric appliances.-The apparatus described in the parent Specification instead of being used with a bed is used with the blanket 12 spread over a device such as a long chair 8 on which the patient reclines. The chair is made of a sufficiently conducting material such as wood or rushwork.
Patent GB-292503-A (GB)
Title: Improvements relating to sheet metal piling
IPC: E02D5/04
Filed: 1928-06-14
Abstract: 292,503. Becker, F. E., and Brusch, F. W. June 20, 1927, [Convention date]. Piles. - Sheet-metal piling consists of I section piles a, in groups channel-section piles b or other piles of one or more, alternating with which are open towards the face of the wall. In a modification, the piles b are replaced by I-section piles with their webs parallel to the face of the wall. The perpendicularity of the succeeding sections may be maintained by splaying or compressing certain of the flanges as necessary in order to taper them. Ladders, fire hose. mooring-devices, &c. may be placed in the recessed part b.
Patent GB-1571962-A (GB)
Title: Spigot-and-socket joint for pipes
IPC: F16L21/04
Filed: 1977-04-26
Abstract: The socket connection has a socket (4) with an outwardly protruding flange (6). An annular part (2) is pushed on to an end, designed as a spigot end (10) of the pipe, which has been introduced into the socket (4), whereupon a locking element (11), designed as a clamping ring which can be braced together, is fixed on the spigot end according to the desired depth of insertion of the spigot end into the socket. Like the socket (4), the annular part (2) has an outwardly directed flange (5) and, like the outwardly directed flange (6) of the socket (4), this flange (5) is embraced by a clip (7) which is essentially U-shaped in cross-section and can be braced together. After bracing of the clip (7), a socket joint is produced which withstands high tensile forces. <IMAGE>
Patent GB-1057671-A (GB)
Title: Improvements relating to furniture joints
Inventor: TRANTER ARTHUR
IPC: F16B12/48
Filed: 1963-05-02
Abstract: 1,057,671. Furniture joints. VONO Ltd. July 28, 1964 [May 2, 1963], No. 17303/63. Heading A4H. In an article of furniture a leg 1, arm or other projecting part has a stud 8 which threadedly engages a nut 9 non-rotatably engaged on a shoulder 7 formed at the junction of unequal diameter bores 5, 6 extending coaxially through a mounting block 2 secured to a wooden furniture frame, e.g. a divan base, the nut being held against movement away from the shoulder 7 by separate retaining means 10 embedded in the wall of the large bore 5. The nut 9 may, as shown, be hexagonal and' have a force fit in the larger bore portion 5. Alternatively, the nut may comprise a circular body having splines or serrations on its periphery. The nut 9 is restrained from moving longitiudinally of the bore 6 by a deformable annular member or washer 10. The undeformed washer 10 may be conical, having a maximum diameter permitting its insertion in the bore 5 to rest with its larger end on the nut 9 whereafter it is deformed by pressure to the flattened condition, as shown, to expand radially and bite into the wall of the bore 5. Alternatively, the washer may comprise a flat annular portion provided with deformable, outwardly inclined projections which bite into the bore wall.
Patent GB-236591-A (GB)
Title: Resinous condensation products
IPC: C08K3/00
Filed: 1925-07-06
Abstract: The hardening of the resin, produced by condensation and polymerization of polyhydric alcohols such as glycerine and polybasic acids or their anhydrides such as phthalic anhydride, is accelerated by admixing with the inital resin a "dehydration catalyst," for example oxide of calcium, magnesium or zinc or certain finely divided metals such as zinc or iron obtained from a fine divided oxide by hydrogen.  In one example a cement, which admits of curing in a short time, is prepared by mixing "glyptal" (the resin from glycerine and phthalic anhydride), marble dust as filler, finely divided iron as catalyst, and acetone with or without alcohol as solvent.
Patent GB-372590-A (GB)
Title: Improvements in or relating to electrostatic loud-speakers
IPC: H04R19/00
Filed: 1931-06-15
Abstract: 372,590. Electrostatic instruments and circuits therefor. VOGT, H., 17, Genthinerstrasse, Berlin. June 15, 1931, No. 17324. Convention date, June 17, 1930. [Class 40 (iv).] Condenser loud-speakers are protected by a shunt circuit comprising an adjustable spark gap in series with a high resistance. In the case of the type having a diaphragm between fixed plates the circuit may be connected between the plates or between the diaphragm and one of them or two gaps f1, f2 and resistances w1, w2 may be provided as shown. The gap m1, m2 may be built into the loudspeaker as shown or so that one electrode of the gap is constituted by the diaphragm itself. The high resistance may be constituted by an elongated interruption in the graphite coating of the electrodes.
Patent GB-954917-A (GB)
Title: Multi-stage process and apparatus for distilling sea water
IPC: B01D3/06
Filed: 1961-05-12
Abstract: 954,917. Evaporators ; distilling sea water. AMERICAN MACHINE & FOUNDRY CO. May 12, 1961 [May 16, 1960], No. 17400/61. Heading B1B. In a plant for distilling sea water in which the water flows through a series of flash evaporators F1-F8 each having a flash chamber 50 and a condenser 48, the evaporators being operated at progressively decreasing pressures, the non- condensable gases withdrawn from the condensers of evaporators F 1 , F 2  and F 3  are collected in line 120 which leads these gases directly to cooler 14, while the gases withdrawn from the condensers of the remaining evaporators F 4 -F 8  are collected in line 124 and are then compressed by steam-jet ejector 16 before being passed to cooler 14. The cooled air is withdrawn from cooler 14 through line 128. The flash evaporators are of the type described in Specification 851,130. The cooling medium used in cooler 14 and condensers 48 is the sea water to be distilled, which is introduced through line 58. The plant shown may be operated in conjunction with a preliminary distilling plant of the heat-pump cycle type comprising an evaporator, condenser, wire-mesh demister, and jet pump as described in Specification 882,611, and the evaporator of this preliminary plant may be of the multiple-effect type. The water supplied to the flash evaporator plant via line 100 is a mixture of the brine discharged from the preliminary distilling plant, and part of the raw water which has been used as cooling medium in the cooler 14, the condensers 48, and the condenser of the preliminary distilling plant. The sumps of the condensers 48 are connected by lines 108 each of which has a liquid seal 110. The distilled water produced into the preliminary distilling plant is led via line 72 into the sump of the condenser 48 of the first flash evaporator. The total distilled water product is withdrawn from the system through line 112.
Patent GB-1416951-A (GB)
Title: Ultrasonic inspection systems
IPC: G01N29/44
Filed: 1973-04-11
Abstract: 1416951 Ultrasonic inspection GENERAL ELECTRIC CO 11 April 1973 [24 July 1972] 17459/73 Heading H4D An ultrasonic inspection system includes a pseudo-isometric display of defects in a body of circular cross-section, said system comprising a 'transducer for transmitting and receiving an ultrasonic signal into and from the body, which is movable parallel to the longitudinal axis of the body, the body being rotatable about said axis; a discriminator for passing echoes from defects; a two-dimensional display having two electrical inputs; a control for providing two asynchronously phased signals to the display to trace a Lissajous pattern as a function of the body rotation; indexing means for providing a direct voltage which is a function of the transducer position along said axis; means for applying the signals from the discriminator and indexing means to the display such that the defects in the body are shown as local distortions of the Lissajous pattern and the transducer position is represented by shifting the location of the Lissajous pattern. Cylinder 10 is rotated through 360 degrees while transducer 16 transmits and receives ultrasonic pulses. Gate 30 removes echoes from the body surface and passes any defect echoes to amplifier 32. Potentiometers 31, 34 are ganged to the cylinder rotation and provide two sinusoidal out-ofphase signals. Linear potentiometer 44 provides a voltage to both amplifiers 36, 32 proportional to the transducer position along the cylinder 10 axis. As the body rotates, the signals from the summing amplifiers 36, 32 fed to the X and Y deflection inputs of X-Y recorder 40 (or CRT) cause an ellipse 54 to be drawn, any defect echoes causing "blips" on the trace at the appropriate angular position. After each rotation, the transducer is shifted by an incremental distance A and a small voltage decrement is supplied by potentiometer 44 to both deflection inputs via amplifiers 36, 32, thus shifting the next trace 54<SP>1</SP> in a direction at 45 degrees relative to the first trace 54. The body 10 may be conical and is immersed in a water bath to provide coupling to the transducer. A through transmission method may also be used.
Patent GB-659666-A (GB)
Title: Improvements in cam-actuated force amplifying device
IPC: F16H25/20
Filed: 1949-07-01
Abstract: 659,666. Cam mechanism. SOC. DES. BREVETS FIORENTINO SOBREFIO. July 1, 1949, No. 17477. Convention date, July 2, 1948. [Class 80(iii)] In cam mechanism of the type described in Specification 489,763 in which two cam rings on a rotating driving member act alternately through balls to apply a lifting force to two members with co-operating cam surfaces, which members may comprise nuts associated with a screw or two parts of a worm associated with a worm wheel, the inactive faces BF of the cams, Fig. 8, are relieved as indicated from the profile FF of the active faces so that interference between one set of balls in taking over the load from the other set of balls is avoided. Additionally, Fig. 10, the rotation of one cam member 26 relative to the other member 39 may be limited by means of a stop pin 79 on one member engaging stops 80, 81 on the other member to ensure the transfer of the load from one set of balls to the other at the correct point.
Patent GB-1254608-A (GB)
Title: Multiunit loudspeaker
Inventor: WOODGATE JOHN MICHAEL
IPC: H04R3/14
Filed: 1969-04-03
Abstract: 1,254,608. Cross-over networks. STANDARD TELEPHONES & CABLES Ltd. 3 April, 1969, No. 17478/69. Heading H4J. In a cross-over network an inductor 3 and a low-frequency loud-speaker unit 4 are connected in series across input terminals 1 and 2. A capacitor 5, inductor 6 and a high-frequency loud-speaker unit 7 are also connected in series across the input terminals 1 and 2. The inductor 3 has an impedance equal to that of the lowfrequency loud-speaker unit 4 at the frequency f 1  above which the unit 4 ceases to be useful. The capacitor 5 and inductor 6 resonate at a frequency f 2  above the frequency f 1 , e.g. two or three times this frequency f 1 . The capacitor 5 has an impedance equal to that of the highfrequency loud-speaker unit 7 at a frequency f 3  equal to three or five times f 2 . Above frequency f 3  the inductor 6 reduces peaks to provide a relatively flat response.
Patent GB-679012-A (GB)
Title: Improvements in or relating to adjustable ignition-timing apparatus for internal-combustion engines
Inventor: JOHNSON CHRISTOPHER LINLEY
IPC: F02P5/10
Filed: 1948-03-17
Abstract: 679,012. Timing ignition; regulating. ROLLS ROYCE, Ltd. March 17, 1949 [March 17, 1948], No. 17495/48. Divided out of 679,011. Classes 7(iv) and 7(vi) [Also in Group XXIX] . In an internal-combustion engine, having a supercharger 65 and an adjustable ignition timing-gear 46-51, in combination with a venturi 60, the latter is connected to the supercharger discharge 61 and so dimensioned and arranged that it is choked in operation by the supercharger discharge and a pressure-operated device 20 so connected as to be subjected to the pressure, at the inlet and at the throat of the venturi and operative to adjust the timing gear in accordance with the absolute pressure of the supercharger discharge. The device 20 is mounted on the engine 64 and comprises two coaxial diaphragms 21, 22 of equal area connected together so dividing the housing into three chambers. The upper chamber 23 is connected by a duct 26 to the supercharger discharge 61, whilst the bottom chamber 25, which also contains a spring 28, is connected by a conduit 27 to the throat of the venturi 60. The central chamber is divided into two parts 29 and 30 by a valve body 24, the two parts being in communication through a duct 31. When the boost pressure in chamber 23 is below the preselected value the combination of the spring 28 and the pressure at the venturi throat overcomes the loading and moves the diaphragm structure upwards: when the preselected pressure is reached the diaphragm structure is balanced and as the boost pressure increases the structure moves downwards. The connection 40 between the two diaphragms is formed as a valve element 41 and below the preselected pressure the valve is open to connect a conduit 33 carrying engine lubricating oil under pressure, to channel 45 opening into a cylinder 46 containing an annular spring-loaded servo-motor piston 47. The piston is connected by a sleeve 48 formed externally with a skew gear which transmits the drive from an engine shaft 50 to a magneto shaft 51. The shaft 50 is splined to the sleeve 49 so that movement of piston 47 alters the timing of the magneto by rotating wheel 52 fixed on shaft 51 without corresponding rotation of the shaft. Movement of the piston by the oil advances the ignition, whilst reverse movement under the extension of the piston spring retards the ignition. The ignition is fully retarded at starting when oil pressure is zero.
Patent GB-204379-A (GB)
Title: Improvements in steam turbine power units
IPC: F01D25/24
Filed: 1922-06-26
Abstract: 204,379. Parsons, Sir C. A., and Carnegie, A. Q. June 26,1922. Motor power plant; casings; bearings, arrangement of.-In turbine-driven alternator sets, the conduit e, Figs. 2 and 4, delivering the exhaust steam from the high-pressure turbine to the lowpressure turbine b is shaped like a conical annulus, which encloses the gearing c between the two turbine shafts h, f. The conical duct e is supported on a pedestal i and is provided with an aperture k through which access may be obtained to the gearing &c. The duct e may be subdivided by radial webs l, or it may be formed by a number of divergent ducts arranged in cone formation. Instead of the turbine shafts f, h being slightly offset and overlapping, their ends may be in juxtaposition as shown in Fig. 5, the bearings being encaged in the conical duct e. In this modification, the high and low pressure turbines a, b drive separate alternators d', d<2>. The low-pressure turbine b may discharge into a condenser n or into two condensers disposed one on either side of the alternator d<2>. The invention is specially applicable to turbine installations of the kind described in Specification 172,094, wherein the greater number of rows of blades are carried by the high-speed shaft.
Patent GB-517065-A (GB)
Title: Improvements in or relating to submarine electric cables
IPC: H01B3/44
Filed: 1938-06-15
Abstract: 517,065. Submarine cables; insulating compositions. ELECTRICAL RESEARCH PRODUCTS, Inc. June 15, 1938, No. 17765. Convention date, June 18, 1937. [Class 36] [Also in Groups IV and V] A submarine electric cable is insulated with a layer of solid or substantially solid insulating material comprising a polymerized aliphatic mono-olefine hydrocarbon, the insulation being covered with a coating of jute. The insulation may consist of the polymerized product of a single aliphatic mono-olefine or a mixture of two aliphatic mono-olefines, and the polymerized product may be mixed with other materials. The polymer may be prepared from mono-olefines containing from 4 to 10 carbon atoms, and when used alone may have an average molecular weight of from 50,000 to 150,000 but when used in admixture, e.g., with rubber, may have an average molecular weight of from 10,000 to 150,000. The polymers may be employed to replace some or all of the rubber employed in paragutta, i.e., mixtures of gutta percha or balata hydrocarbons and rubber, in submarine cables insulation. In examples, the insulation comprises a polymer having an average molecular weight of 100,000 derived from isobutylene (1) mixed with white leaf gutta percha and mineral wax, and (2) mixed with ceresin or other mineral wax. Specification 490,147, is referred to. According to the Specification as open to inspection under Sect. 91, the polymers, with or without the addition of rubber, gutta percha balata, hydro-carbon wax, rosin or sulphur, may be used for electrical insulating purposes in general, and the mixture with rosin or rosin oil may be used as a sealing compound for condensers and loading oils. In examples, polymerized aliphatic mono-oleflnes are (1) mixed with rubber, zinc oxide, stearic acid, phenyl-a-naphthylamine, tetramethylthiuram disulphide and sulphur (2) mixed with rubber and sulphur, and (3) mixed with rubber, zinc oxide, sulphur, tetramethylthiuram monosulphide, stearic acid and phenyl-anapthylamine together with certain of the following substances:- salicylic acid, ceresin wax, carbon black, lithone, whiting, diphenylguanidine, lead oleate. Other fillers, retarders, accelerators and antioxidants may also be employed instead of these specified, and the compositions may be vulcanized. This subject-matter does not appear in the Specification as accepted. Reference has been directed by the Comptroller to Specification 494,629, [Group V]. French Specification 47443 and 1st addition to French Specification 775,306.
Patent GB-544723-A (GB)
Title: Improvements in and relating to indicating apparatus
IPC: G01D13/08
Filed: 1940-12-18
Abstract: 544.723. Indicating apparatus. M. R. C. Ltd., and PILE, S. Dec. 18, 1940, No. 17811. [Class 106 (iv)] A window 11, pointer &c. is movable in a straight line in a casing 6 enclosing a rotary drum 8 bearing numbers or other indications arranged helically and having a helical groove 14 or rib to engage guides on the window &c. The device may include a cam wheel 18 to actuate the hammer 20 for a gong 17 which is sounded as each number of the drum appears in the win- Jow, or to put a lamp switch m the " on' position for a period. A cable drive 16 as described in Specification 380,204, [Group XXIV], may transmit the motion to a distant indicator or from a machine. The invention may be applied to revolution counters. Ball catches may be provided at the ends of the cylinder to hold it temporarily in indicating positions, and the window or pointer may be similarly held by a spring detent.