baber/WOPTO huggingface dataset:
Patent GB-329747-A (GB)
Title: Improvements in thermionic or like amplifiers
IPC: H03G3/16
Filed: 1929-03-20
Abstract: 329,747. Voigt, P. G. A. H. March 20, 1929. Systems for transmitting music. - The amplification of a low frequency amplifier is controlled by the relative values of two or more condensers arranged to form a potentiometer type of input. In a modification the circuit is arranged to combine in pre-determined proportions energy from a number of sources. Fig. 2 shows condensers C, D arranged to control the amplification with resistances F, M, arranged to prevent noise due to direct current voltage across the variable condenser C. The condensers are preferably ganged and the plates may be shaped to obtain control according to any desired law. In a modification (Fig. 3, not shown) a number of inputs with a corresponding number of condensers C are employed to enable the inputs from a number of microphones to be mixed. Fig. 4 shows a system having two inputs A1, B1, A2, B2, and a condenser having three fixed plates C1, C2, D and a moving plate V adapted to permit either input to be " faded in " or the addition of the inputs in any desired proportions.
Patent GB-393556-A (GB)
Title: Improvements in and relating to mercury tube switches
IPC: H01H29/24
Filed: 1933-03-24
Abstract: 393,556. Mercury switches. SIEMENSSCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. March 24, 1933, No. 8967. Convention date, March 24, 1932. [Class 38 (v).] A mercury-tube switch is provided .inside the envelope 1 with an insert 2 made of refractory material such as quartz or aluminium oxide. The insert is formed on its lower side with a projecting edge 10 on which the mercury divides on breaking circuit, and a projection 7 from the upper side of the insert protects the electrode 4 from the effects of arcing. The other electrode 5 is also separated from the arcing chamber 9 by an end wall having air pressure-relieving orifice 11. In modifications the insert is made in two parts held in place by the electrodes.
Patent GB-549739-A (GB)
Title: Improvements in and relating to warp knitting machines
IPC: D04B35/06
Filed: 1941-07-17
Abstract: 549,739. Knitting-machines. COURTAULDS, Ltd., and COTTERILL, E. July 17, 1941, No. 9031. [Class 74 (ii)] A warp machine is provided with hook needles la along which the tips of tongues 3a move while the needles and tongues are moved to-and-fro transversely of the needle shanks. The needles and tongues are swung about separate axes, and the tongues may be pressed by a spring 9 so as to be moved to-and-fro by the needles. The sinkers 19 are actuated so as to have movement both in the direction of the length of the needles and transversely thereto.
Patent GB-837176-A (GB)
Title: Improvements in or relating to magnetic amplifiers
IPC: H03F9/04
Filed: 1958-03-21
Abstract: 837,176. Magnetic amplifiers. WESTINGHOUSE ELECTRIC CORPORATION. March 21, 1958 [March 28, 1957], No. 9106/58. Class 40 (9). Each of the parallel connected reactors 20, 50 of an auto-selfexcited amplifier is connected in series with an additional reactor 30 or 60 which have cross-connected feed-back windings 34 and 64. Series energized bias windings on all cores prevent the cores from being completely switched by the A.C. source 90 in the absence of a control signal. Significant output appears across the load when the bias is backed off by opposing control windings. The arrangement is designed to give a constant voltage across the load which may be a relay having a low impedance while being operated and a higher impedance when operated. With a high load current the feedback windings 34 and 64 keep the impedance of reactors 30 and 60 to a minimum but as the impedance of the load increases the load current falls and the impedance of reactors 30 and 60 increases. The circuit may be made bi-stable by feeding back current from the load circuit directly to the control windings to hold the amplifiers locked in an operated state and by providing additional control windings to enable the operated state to be inhibited and the bias re-instated, see Fig. 2, not shown. The control circuit may include windings on the reactors 30 and 60 (see Fig. 3, not shown). The load may be energized in a rectifier bridge circuit or from a centre-tapped transformer (see Figs. 4 and 5, not shown). In Fig. 6, the cores 20 and 50 are set during firing half-cycles when the excitation windings are energized and are reset during the intervening half-cycles from an alternating source 120 unless inhibited by a voltage across 70, 72, which backs off the rectifiers 28 and 58.
Patent GB-689976-A (GB)
Title: A process for the treatment of ceramic insulating elements for fixing the electrodesof electron discharge tubes
IPC: H01J19/44
Filed: 1950-04-13
Abstract: 689,976. Electric discharge tubes. EGYESULT IZZOLAMPA ES VILLA-MOSSAGI R. T. April 13, 1950 [June 17, 1949], No. 9130/50. Class 39(i). Process for treating ceramic insulating elements fixing the electrodes of electric discharge tubes in position comprises subjecting the surfaces of the elements to the action of one or more substances which are capable of dissolving parts of the elements to produce a roughened surface thereon. A 10 per cent solution of hydrofluoric acid can be used for ceramic insulating elements containing silica. Elements containing aluminium oxide can be boiled in 30-40 per cent acid solutions. Elements containing calcium oxide can be boiled in a 20 per cent solution of hydrochloric acid.
Patent GB-732546-A (GB)
Title: Improvements in and relating to fireplaces
IPC: F24B1/18
Filed: 1952-04-10
Abstract: 732,546. Fireplaces. 'SMITH, W. H. March 12, 1953 [April 10, 1952], No. 9166/52. Class 126. In a fireplace the upper part of the fireback together with the side cheeks, above the level of the fuel bed, are formed of an integral one-piece firebrick member while the lower part on which this member rests and which is in contact with the fuel bed includes two side cheeks which are of briquettes. The fireplaces shown, Figs. 7 and 8, are constructed of briquettes of four different types a, b, c, d (Fig. 4), the upper part of the fireback of the fireplace of Fig. 8 comprising a backboiler and flue f, g. Figs. 5 and 7, illustrate two forms of a ribbed one-piece firebrick member e. The side cheek portions e<SP>1</SP> of the form shown in Fig. 5 may also be ribbed. Specification 695,079 is referred to in the Provisional Specification.
Patent GB-210662-A (GB)
Title: Improvements in, or relating to, valve apparatus for rock drills and like fluid pressure operated tools
IPC: B25D9/20
Filed: 1923-04-03
Abstract: 210,662. Rayner, G. H. T., and Rayner, P. April 3, 1923. Addition to 192,277 and 208,961. Fluid - actuated gears. -In valve-gears of the kind described in the parent Specifications multiple inlet and exhaust ports j, j<1> k, k<1> are provided which are controlled by a single valve, or in pairs by separate hollow valves h, h<1> working in unison. Arcshaped channels g<3> communicating with the inlets are provided between the ports or between each pair of ports to feed fluid to the underside of the valve or valves.
Patent GB-330033-A (GB)
Title: Improvements in electrical connectors or couplings
IPC: H01R13/115
Filed: 1929-03-21
Abstract: 330,033. Bancroft, F. E., and Associated Electrical Industries, Ltd. March 21, 1929. Plug couplings.-A socket member 1 is rendered resilient by slits 5, 8, 9 extending alternately from opposite ends of the member 1 which is of cylindrical shape and is continuous all round the circumference. The socket 1 shown may be formed in one with a supporting lug 2 the slits 8, 9 dividing also the lug at 10, 11. If the socket is made separate it may be attached to the lug 2 by a screw having an elongated head extending across the socket and engaging a washer shaped to fit the inner surface of the socket. The socket may be secured to a base plate as described in Specification 331,251. According to the Provisional Specification the construction may be applied to a plug.
Patent GB-454229-A (GB)
Title: Improvements in or relating to the manufacture of radiators for internal combustion engines
IPC: B21D13/02
Filed: 1935-03-25
Abstract: 454,229. Making radiators &c. DELANEY, C. T., 81, The Avenue, Brondesbury Park, and CHAUSSON GALLAY, Ltd., 103, Scrubs Lane, Willesden, both in London. March 25, 1935, No. 9200. [Classes 83 (ii) and 83 (iv)] Corrugating.-A radiator element is made by corrugating a sheet between a fixed matrix 2 anc spring pressed sliding dies 5 to 9, the middle die 7 forming the first corrugation and the others operating in succession, each die being held down by the blocks 13 so thai the metal is gatherec in towards the centre without lateral stretch. ing. The corrugated sheet is then doubled over at its centre to make diamond shaped channels Fig. 3, and the ends are then sealed to complete the radiator element.
Patent GB-380737-A (GB)
Title: Improvements in or relating to apparatus for measuring muscular force
Filed: 1932-03-31
Abstract: 380,737. Dynamometers for testing physical strength. LUTZ, A., 86A, Heusteigstrasse, Stuttgart, Germany. March 31, 1932, No. 9218. Convention date, March 31, 1931. [Class 106 (ii).] A pivoted lever loaded by a spring, weight or the like and of the approximate length of the forearm is adapted to be gripped at the free end and is provided with a support for the elbow near the pivoted end. The curved lever 1 is adapted to rock about a pin 2 in a baseplate 3. A spring 5 is connected at one end to the base and at the other to the lever and normally holds the latter against a fixed stop 4, the hand grip 10 being then vertically above the lever pivot. In use the elbow is placed on a rest 11 to depress a spring-urged lever 15, a detent 17 on which is thus released from a toothed quadrant on the boss of the lever 1 which may then be pulled against the influence of the spring. The lever 1 carries a dial 6 the pointer of which is moved in dependence on the tensioning of a band 8 fastened to the base. The pin 2, if rigidly connected to the lever 1, may carry an indicator 9 moving over a scale one division of which corresponds to a complete turn of the needle 7.
Patent GB-1535673-A (GB)
Title: Machine for semicontinuous casting of metals
IPC: B22D11/128
Filed: 1977-03-04
Abstract: 1535673 Elevator propelling mechanism KRAMATOR NI I PROEKTNOTEKHNOLOGICHE INST MASHINOSTRO 4 March 1977 09278/77 Heading B8L [Also in Division B3] In a mould 1 supported on an oscillating frame 2, an ingot 4, e.g. of iron or steel, is semicontinuously cast on a dummy bar 5 carried on a cantilevered portion of a carriage 6, bearing at least one toothed rack 7, meshing with a succession of gear wheels 10 along a column 9 for moving the carriage and withdrawing the casting 4 from the mould; the gear-wheels 10 (as shown interconnected by idler wheels 11) are driven by an electric motor and reduction (12) which are spaced away from the apparatus and high temperature and fluid area and, to maintain constancy of motor load, there is a brake (13) to compensate for increase of load as withdrawal progresses. A secondary cooling section 3 is suspended from the mould. It is said to be possible to cast round, rectangular or octahedral ingots, for heavy forging and rolling and for use as consumable electrodes for remelting, of up to 1000 mm. cross-section, 8-11 m. length and 50-100 t. weight. The weight of the carriage 6 is 1À05-1.50 times the required ingot-withdrawal force. The length l 2  of the racks 7 is equal to or up to twice the distance l 1  between centres of gear wheels 10. The length of the casting 4 is monitored by a sensor (15) such as a potentiometer linked with the withdrawal gear. The force required for withdrawal is indicated by load cells 17 beneath the mould 1. These sensors control the brake (13), which is a ferromagnetic powder brake having a double shaft and windings coupled to the sensors to increase the braking as the casting grows and they adjust it to smooth out the effect of mould oscillation on the motor load. The casting 4 finally rests in a chair 18 where it solidifies either at the machine or after removal on a car 19.
Patent GB-541493-A (GB)
Title: Improvements in apparatus for comparing the relative intensities of sounds from two separate sources
IPC: G09B9/56
Filed: 1940-05-28
Abstract: 541,493. Locating source of sounds and like vibrations. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., BERKELEY, P. R., and BERKELEY, A. G. May 28, 1940, No. 9365. [Class 118 (ii)] Relates to apparatus for comparing the relative intensities of sounds from two sources, particularly for training personnel in the use of sound-locating apparatus. According to the invention, the apparatus comprises a source of audio-frequency energy, means for applying this energy to a potentiometer and resistance and a pair of telephones, manually controlled means for varying the intensity of the sound in either or both telephones, and further manually controlled means for the same purpose, the arrangement being such that inequality of the intensity produced by one manually controlled means can be counteracted by operation of the other. The potentiometer may consist of a toroidal coil PP, Fig. 1, rotatable by a motor EP, the ends of the winding being connected to slip rings RP1 and RP2. A slider LI is mounted on a spindle co-axial with that of the coil PP and rotated by an independent motor EI. The field winding of the motor EP includes a toroidal resistance FRP having a slider LP mounted on a spindle SP2 which is rotatable by a hand wheel HP that simulates the control wheel of a sound locator. The field winding of the motor EI also includes a toroidal resistance FR1 having a slider LT2 which can be rotated by a knob KI. The two ends of the potentiometer PP are connected through separate telephones LH and RH, Fig. 2, of a head set to one end of the secondary winding S of a transformer T, the other end of the secondary being connected to the slider LI. The primary winding P of the transformer is connected to a source of audio frequency energy which may be a microphone MC mounted on the end of a short reed clamped to the gearbox of one of the motors, an amplifier A being included between the microphone and the transformer. In operation, the instructor turns the knob KI to increase or decrease the speed of the motor EI and thus alter the position of the slider LI on the potentiometer PP. This produces a condition of unbalance in the two telephones, and the pupil rotates the wheel HP to endeavour to maintain a state of balance. The re-actions of the pupil may be recorded by a stylus ST, Fig. 1, carried by a pivoted arm which is connected by a link L to the middle of a bar LM. The ends of the bar are connected by racks RAP, RAI to pinions PPP and PIP, respectively, on the spindles SP2 and SI2. A further bridge circuit having resistances RA, RB, Fig. 2, as its third and fourth arms may be used to demonstrate to the pupil on a milliammeter MA, the effect of balance.
Patent GB-930589-A (GB)
Title: Combustion device
IPC: F23D11/00
Filed: 1962-03-12
Abstract: 930,589. Combustion apparatus. BATAAFSE PETROLEUM MAATSCHAPPIJ N.V. March 12, 1962 [March 13, 1961], No. 9427/62. Class 51(1). A liquid fuel combustion device of the type disclosed in Specifications 825,594 and 703,721 comprises an air chamber 5 and a combustion chamber 1 lined with refractory material joined by a throat 2 an atomising burner 4, secondary air ducts 3 disposed in a circle around the throat directed outwardly at 20-40 degrees to the central axis and an air box 7 supplying air to the ducts 3 and tangential air inlets 6. The duets 3 have nozzles 9 which may be of silicon carbide and vary from twelve to thirty-six in number according to the capacity of the device.
Patent GB-1177137-A (GB)
Title: Disubstituted Benzyl Methyl-Sulfoxides and -Sulfones
IPC: C07C317/10
Filed: 1967-02-28
Abstract: 1,177,137. Sulphoxides and sulphones. TAKEDA YAKUHIN KOGYO K.K. 28 Feb., 1967 [28 Feb., 1966; 8 March, 1966], No. 9442/67. Heading C2C. Novel 2,4 - and 2,6 - dihalogenobenzyl methyl-sulphoxides and -sulphones of the formula wherein X is chlorine, bromine or fluorine attached to the 6-position of the phenyl radical, or chlorine attached to the 4-position of the phenyl radical, and n is 1 or 2, are prepared (i) oxidation of a dihalogenobenzyl methyl sulphide of the formula or (ii), when n is 2, by reaction of a dihalogenobenzyl derivative of the formula with a compound of the formula CH 3 Y 2 , wherein one of Y 1  and Y 2  is a halogen atom or a tosylate group and the other is a -SO 2 - alkali metal or -SO 2 - ammonium radical. Pharmaceutical compositions, comprising a 2,4- or 2,6- dihalogenobenzyl methyl-sulphoxide or -sulphone of the first formula above together with one or more pharmaceutically acceptable carriers, have anti-inflammatory activity.
Patent GB-837230-A (GB)
Title: A new or improved latch for doors
Inventor: FROSH SIDNEY
IPC: E05B63/20
Filed: 1957-03-22
Abstract: 837,230. Latches. GREENMAN Ltd., S. June 6, 1958 [March 22, 1957; June 6, 1957], Nos. 9459/57 and 18042/57. Class 44 A latch assembly for a door comprises a casing 1 and a spring-loaded latch 3 slidably mounted therein, and the latch, on being retracted by a knob 8 thereon, is deflected laterally to allow it to engage on abutment 7 integral with the casing. The latch is thus maintained in the restricted position until it is dislodged by closing the door, the dislodging being effected by a pin 16, integral with the latch, striking a keeper 13 on the door frame or another door.
Patent GB-360796-A (GB)
Title: Process for the treatment of spore-containing material
IPC: A61L17/00
Filed: 1931-03-28
Abstract: Spore-containing material, especially gut, is freed from bacillus spores, particularly anaerobic spores, by incubating in a suitable culture substrate, in so far as the material itself is not a sufficient culture medium, containing a source of acid, e.g. carbohydrates, in such quantity that, by the bacteria developed, an excess of acid is produced.  Acid-forming bacteria cultures may be added to the material.  This treatment is followed by physical or chemical disinfection.  According to an example, split gut is incubated with addition of a culture of streptococcus acidi lactici or bacillus acidophilus in a culture bouillon with 1-2 per cent of grape sugar for about 10 days at 37 DEG  C., washed with water and placed in a weak disinfectant such as 1/1000 to 1/10000 iodine solution.
Patent GB-526735-A (GB)
Title: Improvements in screw-and-nut gearing
IPC: F16H25/22
Filed: 1939-03-27
Abstract: 526,735. Screw-and-nut gearing. GIANETTI. G., and DITTA GIULIO GIANETTI DEI FRATELLI GIANETTI. March 27, 1939, No. 9482. [Class 80 (iii)] Relates to screw-and-nut gearing wherein balls roll in the engaging threads and has for its object to obviate the use of a cage for spacing the balls. The nut 6 has a continuous thread 3, but the screw 1 has a number of separate and distinct closed grooves 2 each of which extends around the entire periphery of the screw. Each groove consists of a helical portion extending for somewhat less than a complete convolution the extremities being joined by a steeply inclined and deeper channel 4, the various channels being offset relatively to one another. The depth of the grooves is approximately equal to the radius of the balls, while that of the channels 4 is equal to the diameter thereof. The balls 5 are thus packed together and the channels facilitate their circulation. In a modification, the thread of the screw is continuous and the separate grooves are in the nut,
Patent GB-640744-A (GB)
Title: Improvements in or relating to constructional toys
IPC: A63H33/06
Filed: 1948-04-07
Abstract: 640,744. Constructional toys. DAVENPORT, E. J. April 7, 1948, No. 9691. [Class 132 (iii)] A constructional toy comprises a plurality of members 10 having tubular end portions formed with transversely arranged slots 12, and a plurality of spring clips 16 each consisting of a gapped ring of spring metal adapted to be passed through said slots 12 and to project beyond the end of the member 10 with which it is engaged so as to be capable of embracing an additional similar member 15 placed transversely across the open end of the member 10, carrying the clip 16, said clip drawing the additional member 15 into pressure contact with the end of the member 10. The members 10 preferably comprise tubes of the seamless or folded variety and the ends of the members may be shaped to form a part-cylindrical seat for other tubes.
Patent GB-232949-A (GB)
Title: Improvements in internal combustion engines
IPC: F01L5/06
Filed: 1925-04-15
Abstract: 232,949. Weger, C. J. April 26, 1924, [Convention date]. Cam-actuated pumps; singleacting suction-valveless piston pumps; relief devices.-The fuel for an internal combustion engine is supplied by a piston pump 24 having spring-pressed relief valve 54 to limit the delivery through the pipe 39. The piston is worked by the radial cam 29, and fuel is admitted both above and below the piston by the passage 37.
Patent GB-639244-A (GB)
Title: Improvements in or relating to conveyor chains
Inventor: ORWIN OLAF JOHN BARCLAY
IPC: B65G39/20
Filed: 1948-04-08
Abstract: 639,244. Making chain links. FISHER & LUDLOW, Ltd. April 8, 1948, No. 9812. [Classes 83 (i) and 83 (ii)] [Also in Group XXX] A conveyer comprises pairs of links, 10, 11 connected together by a connecting member 12 provided with two holes disposed transversely of the chain and at right angles to one another in parallel, but spaced, planes to take the connecting pins for the links. These pins carry rollers at their ends. The connecting member 12 may be made by taking two similar metal bars and welding them together, medially of their lengths so that they extend at right angles to one another, Fig. 5, after which the bars are drilled axially of their length to form each into a tube 15. Alternatively the member 12 may be a die-casting which is afterwards machined. Preferably member 12 is made by diecasting metal around a pair of cylindrical bearing liners 29, Fig. 5, which are supported within the casting mould at right angles to each other.
Patent GB-1271586-A (GB)
Title: Process for the dyeing and printing of materials consisting of anion-modified polyacrylonitrile, polyamide and polyester and polyester fibres
Inventor: HILDEBRANDT DIETRICH
IPC: D06P1/00
Filed: 1970-03-02
Abstract: 1,271,586. Dyeing anion-modified p.a.c., polyamide and polyesters. FARBENFABRIKEN BAYER A.G. 2 March, 1970 [1 March, 1969], No. 9828/70. Heading D1B. [Also in Division C4] Anion-modified p.a.c., polyamides and polyesters, and mixtures of these with other fiber materials, e.g. cotton, regenerated cellulose, wool, unmodified polyesters and polyamides are dyed or printed using aqueous dispersions of the salts of basic dyestuffs, preferably azo or anthraquinone, free from carboxylic and sulphonic acid groups and polynuclear aromatic sulphonic acids. Naphthalene monotetra-sulphonic acids are preferred. The dyestuff compositions used contain 100 parts by weight dyestuff salt, 2-20 parts of non-ionic dispersing agent and/or 2-20 parts of an anionic dispersing agent, and may also contain other dyestuffs, e.g. reactive and direct for dyeing unions. Fixation may be by steaming, hot air, contact heat or by the cold batch method.