baber/WOPTO huggingface dataset:
Patent GB-506141-A (GB)
Title: Improvements in the stereophonic recording and reproduction of sound vibrations
IPC: G11B7/00
Filed: 1938-10-01
Abstract: 506,141. Binaural and directional systems. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Oct. 1, 1938, No. 28590. Convention date, Oct. 4,1937. [Class 40 (iv)] In a binaural sound recording and reproducing system, no binaural effect is introduced in the frequencies lying below 200-300 cycles. In Fig. 1, in reproducing from a binaural record 10 having two sound tracks 11, 12, the pick-up cells 15, 16 feed into separate amplifying channels, and the lower frequencies pass through filters 22, 23 to a common loudspeaker or loudspeakers 27 while the higher frequencies pass through filters 21, 24 to separate spaced loudspeakers 25, 26. In Fig. 2, a record 45 having two binaural high frequency tracks 42, 44 and a single low frequency track 43 is obtained by feeding the high frequencies from two spaced microphones 28, 29 through separate channels comprising filters 32, 35 and amplifiers 36, 38 to the recorders 39, 41 and the low frequencies through filters 33, 34 and a common amplifier 37 to the recorder 40. For use in very large rooms, more tracks may be provided, e.g. three pairs of tracks for the high frequencies and two tracks for the low frequencies. Fig. 3 shows a reproducing system for the record 45, the high frequencies being supplied separately to spaced loudspeakers 64, 65 and the low frequencies to loudspeakers 66, 67 which may conveniently be located beside the spaced loudspeakers 64, 65.
Patent GB-298781-A (GB)
Title: Improvements in or relating to welding cast iron
IPC: B23K9/23
Filed: 1927-10-27
Abstract: 298,781. Wade, H., (International Nickel Co.). Oct. 27, 1927. Uniting by fusion.-In welding cast iron, or cast iron containing nickel, a filler rod is used of a ferrous alloy containing from 1 to 40 per cent of nickel. For this purpose a nickel steel wire of low carbon content and containing from 1-5 or 20-40 per cent of nickel may be used. From 5 to 50 per cent of the nickel may be replaced by copper. Another rod may consist of cast iron containing from 2 to 4 per cent of carbon, 1 to 3.5 per cent of silicon, and 1 to 40 per cent of nickel. Preferably from 5 to 20 per cent of nickel is used. From 5 to 10 per cent of the inckel may in this case be replaced by copper.
Patent GB-323059-A (GB)
Title: Improvements in and relating to mouldings, beadings or the like, suitable for the bodies of motor vehicles and other structures
IPC: B60R13/04
Filed: 1928-10-06
Abstract: 323,059. Petty, E. H. Oct. 6,. 1928. Mouldings. - Moulding strips 1, Fig. 1, are secured by sliding the inturned edges 2 under the resilient flanges 4 of a fixing strip 3 of channel or angle section. The flanges may be interrupted to form lugs 7, Fig. 4, which may be staggered or symmetrical. Fig. 6 shows a modification in which the strip 3 is Z-shaped and may be formed with a groove 9 to receive the edge 10 of the moulding. The strips 1 and 3 may be made of metal, wood, celluloid, wood fibre, or other material.
Patent GB-390550-A (GB)
Title: Improvements in brakes
IPC: B64C25/42
Filed: 1931-10-16
Abstract: 390,550. Internal-expanding brakes ; vehicle wheels. BENDIX BRAKE CO., 401, North Bendix Drive, South Bend, Indiana, U.S.A. Oct. 16, 1931, No. 28783. Convention date, Oct. 16, 1930. [Classes 103 (i) and 144 (ii).] A brake, lying within the central hub 12 of a wheel provided internally with a conical drum 62, comprises a pair of connected conical brake shoes 66, 68, one of which is pivoted at 72 to a carrier 74 so that when the carrier is moved axially on the fixed axle 10, the shoes, by engaging a wedge 80 fixed on the axle, are expanded into contact with the drum and develop a self-braking action. The carrier 74 is moved by a lever 84 pivoted in a slot in the axle and operated against the action of a return spring 76 by a cable 92 or the like pulling on a slide 90 slidable in the bore of the axle. Inside the hub 12, which is supported on bearings 30, 42 are two annular grease-chambers 38, 60. A pneumatic tyre 14 encircles the hub and lies between a hub-flange 16 and a flange 20 on a ring 18 which is screwed at 22 to the hub, the tyre being secured to the hub by its laterallyextending valve-stem 25 extending through the ring 18.
Patent GB-261741-A (GB)
Title: Improvements in refrigerating apparatus of the absorption type
IPC: F25B15/10
Filed: 1926-11-15
Abstract: 261,741. Electrolux, Ltd., (Assignees of Platen, B. C. von, and Munters, C. G.). Nov. 21, 1925, [Convention date]. Refrigerating, absroption apparatus for.- The sealed filling or charging aperture 23 of apparatus working on a closed continuous cycle and containing hydrogen or other inert gas is located at a part that is covered by liquid at all times when the apparatus is in a position for operation, whereby the risk of leakage is minimized. The aperture is shown as arranged in the stroug liquor conduit 19 between the absorber 21 and the generator 10, and is sealed by a plug 25 and screw cap 24. The Specification, as open to inspection under Sect. 91 (3) (a) comprises also the following :- Charging and sealing means comprise a housing 27, Fig. 2 (Cancelled) secured by a flange 32 to a bench and connected through valved branches to a vacuum pump 42 and to -supply reservoirs A, N, H for ammonia solution, nitrogen and hydrogen respectively, or for other substances to be charged into the apparatus. The refrigerating apparatus is usually small enough to be brought to the charging bench and is supported above it, the pipe 23 being coupled to the open end of the housing 27. The apparatus is first exhausted of air, the valves 45, 46, 47 being closed, the valve 43 opened, and the water-jet injector 42 put in operation. A combined pressure and vacuum gauge 37 is connected to the housing, and after sufficient vacuum has been produced a charge of nitrogen is admitted through the valve 45, to ensure neutralization of any remaining oxygen, after which the apparatus is again exhausted. It is then charged with a measured quantity of solution from the graduated vessel A and finally with hydrogen under pressure from the vessel H. When the charge is completed, the screw plug 25, which is supported on a slidable spindle 33 in the housing 27, is placed in the aperture and screwed home, after which the apparatus is uncoupled and the closing cap applied. Instead of using nitrogen for washing out the apparatus, some of the hydrogen may be used, in which case some nitrogen may be introduced to neutralize any remaining oxygen. This subject-matter does not appear in the Specification as accepted.
Patent GB-859915-A (GB)
Title: Improvements in or relating to measuring systems utilising pressure waves
Inventor: WORSWICK BERNARD AUGUSTINE
IPC: G01F1/66
Filed: 1957-09-13
Abstract: 859,915. Ultrasonic measuring apparatus. BAILEY METERS & CONTROLS Ltd. Sept. 12, 1958 [Sept. 13, 1957], No. 28892/57. Class 40(7). Variations in a characteristic of a body of fluid are measured by counting the number of times, or the rate at which an electronic oscillator circuit loaded by an electro-mechanical transducer projecting pressure waves through the fluid towards a reflecting surface goes into oscillation. Relative movement between electro-acoustic transmit/receive transducer 1, Fig. 1 and reflecting surface (or medium discontinuity) 3 causes the transducer to move successively through nodes PNI-Z and anti-nodes PANI-Z of the pressure standing-wave pattern. Electronic oscillator circuit 5 is adjusted such that when the go-and-return path length r = w (1 + 2n)/2, where w is the wavelength in the intervening medium and n an integer, the load imposed by the transducer on the oscillator circuit is sufficiently low for oscillations therein to build up; when r = wn the imposed load inhibits oscillations. In an alternative arrangement separate transmitting and receiving transducers are used, Fig. 2 (not shown). As applied to monitoring of water level in tank 20 ultrasonic piezo-electric transducers 21A, B are connected to equal-frequency oscillators 25A, B the separation between transducers 21B and tank base being increased by metal layer 28. Detector 29A provides an output pulse to a counter such as described in Specification 859,914, when circuit 25A goes into oscillation and similarly for detector 29B and circuit 25B, the indicated counter number being increased by unity when a pulse from detector 29B follows one from detector 29A and decreased by unity on the reverse sequence. Where liquid surface agitation causes incident wave dispersion a float with a submerged horizontal reflecting surface may be used. Liquid flow through a pipe is measured by using plates on the tips of a rotatable vane as reflectors, a single transducer being employed and the oscillator circuit detector feeding (1) a counter to give quantity flow and (2) a pulsefrequency measuring device to give velocity of flow, Figs. 4 and 5 (not shown). To measure furnace gas temperature the reflection path length is fixed but the change of wavelength w with temperature is utilized Fig. 6 (not shown).
Patent GB-765891-A (GB)
Title: Composite radiation amplifier
IPC: H01L31/14
Filed: 1954-10-08
Abstract: 765,891. Photo-conductive devices. STANDARD TELEPHONES & CABLES, Ltd. Oct. 8, 1954 [Oct. 13, 1953], No. 29052/54. Class 37. [Also in Group XL (a)] A radiation amplifying device for television or motion picture projection comprises either particles of electro-luminescent material 8 each covered by a film 10 of photo-conductive material (Fig. 4) or intermixed discrete particles of electroluminescent and photo-conductive particles 8, 14 (Fig. 5) in each case suspended in insulating material 3 between transparent electrodes 2, 4 and glass supports 1, 5. Additional insulating layers free of electroluminescent and photo-conductive particles may be formed between layer 3 and the electrodes 2, 4. Layer 3 is of cellulose acetate or polystyrene. The photo-conductive material may be cadmium sulphide and the phosphor zinc sulphide/ oxide activated by copper. Where there is feedback, the voltage applied to the assembly is pulsed for a time so as just perceptibly to affect the photo-conductive material by light from the phosphor. A continuous voltage wave may be used when the photo-conductive material is not sensitive to radiation from the phosphor. Specification 749,798, [Group XL (a)], is referred to.
Patent GB-344465-A (GB)
Title: Improvements in or relating to apparatus for the complete determination of the direction and strengths of magnetic fields in particular of the natural magnetic field of the earth
IPC: G01R33/038
Filed: 1929-09-26
Abstract: 344,465. Magnetic measurements. AMBRONN, R., 32, Prinz Albrechtstrasse, G÷ttingen, Germany. Sept. 26, 1929. No. 29186. Convention date, Nov. 30, 1928. [Class 37.] Apparatus for the measurement of the components of a magnetic field comprises a beam or coil balanced on a horizontal axis and adjustable to arbitrary azimuthal positions, means being provided for reading the inclination at each adjustment. Magnetic, electromagnetic or mechanical means may be provided to restore the balance system to its " zero " setting. In one arrangement, Fig. 3, the balance system M is re-set by a coil S connected to a galvanometer G and variable resistance W. Instead of being inclined, the coil S may be located in a horizontal plane. In another arrangement, Fig. 5, the re-setting force comprises a bar magnet A rotatable about an axis a, its position being read on a scale N. Reference has been directed by the Comptroller to Specifications 172,412, 187,969. and 297,937, [all in Class 37, Electricity, Measuring &c.].
Patent GB-1191577-A (GB)
Title: Phosporic Acid Esters, their manufacture and use as Insecticides
IPC: C07F9/113
Filed: 1968-06-19
Abstract: 1,191,577. Insecticides containing phosphoric acid esters. FARBWERKE HOECHST A.G. 19 June,1968 [24 June, 1967 (2)], No. 29231/  68. Heading A5E. [Also in Division C2] An insecticidal composition contains, as active ingredient, a phosphoric acid ester of the general formulaI in which R represents an alkyl group having 1 to 3 carbon atoms, and R 1 , R 2  and R 3  each represents a hydrogen atom or a halogen atom, together with a suitable solid or liquid carrier. The compounds are also effective as acaricides. The compositions may also contain adhesives, wetting agents, dispersing agents and grinding auxiliaries (e.g. inorganic or organic salts) and may be in the form of wettable powders, emulsions, suspensions, dusts or granules, or solutions in organic solvents.
Patent GB-330843-A (GB)
Title: Curved-shaped woven band, in particular for the manufacture of collars or other articles
IPC: D03D1/00
Filed: 1929-09-27
Abstract: 330,843. Haubold, C. Nov. 14, 1928, [Convention date]. Fashioned fabrics; multiple fabrics. - Bands for making collars &c. are woven curved by causing the weft threads 7, 8, 9 to extend varying distances across the fabric. The fabric may be woven multiply, a weft thread after insertion into one layer being reinserted in another layer. Reference has been directed by the Comptroller to Specifications 23665/01; 293,663, [Class 42 (ii), Fabrics, Treating otherwise &c.]; and 313,183.
Patent GB-634097-A (GB)
Title: Improvements in and relating to copper catalysts
IPC: B01J25/00
Filed: 1946-10-02
Abstract: Copper-silicon foraminate catalysts are prepared by treating an alloy wherein the copper silicon ratio, by weight, is from 80 : 20 to 92 : 8, with an aqueous solution of sodium or potassium hydroxide of 15 to 50 per cent concentration by weight to remove not more than 50 per cent by weight of the silicon.  The alloy is chill cast and graded between 1/16 inch and 1 inch, but also included are these grading between 30 and 1000 microns.  The silicon removal is preferably effected in stages, the first of which serves to prepare the catalyst, subsequent ones serving to reactivate it after use. Regeneration is effected with air or oxygen containing gas at 400-450 DEG  C. followed by hydrogen at 300 DEG  C.  The catalysts may be modified by treatment with sodium or potassium carbonates.  The catalysts may be employed for hydrogenation, dehydrogenation, hydrogenolysis or reductive amination.  In examples, the conversion of isopropanol to acetone, and nitrobenzene to aniline is described. The Provisional Specification describes an alloy skeletal catalyst, such a type being characterised by having substantially all the silicon removed, and it may be prepared from either granular or non-granular alloy.  Specification 632,219 is referred to.ALSO:Copper-silicon foraminate catalyst (see Group III) are used for the conversion at 300 DEG  C. of isopropanol to acetone and nitrobenzene to aniline.  Specification 632,219 is referred to.ALSO:Copper-silicon foraminate catalysts are prepared by treating a copper-silicon alloy wherein the copper silicon ratio, by weight, is from 80:20 to 92:8, with an aqueous solution of sodium or potassium hydroxide of 15 to 50 per cent concentration, by weight, to remove not more than 50 per cent by weight of the silicon. Specification 632,219, [Group III], is referred to.
Patent GB-967954-A (GB)
Title: Improvements in or relating to copolymerised polyester products
IPC: C04B41/51
Filed: 1960-08-25
Abstract: Esters of mercaptocarboxylic acids are used as accelerators for the hardening copolymerization of an unsaturated polyester and a comonomer with an organic peroxy catalyst. Preferred esters are those of C1- 6 alpha or beta mercaptocarboxylic acids and mono- or polyhydric alcohols or ether alcohols.  Specified polyesters are those derived from acids such as maleic, fumaric, itaconic, citraconic and chloromaleic and diols such as C2- 6 alkane diols or diethylene or dipropylene glycol, which may be modified with saturated mono-, di- or polycarboxylic acids, halogen-substituted acids, mono- or polyhydric alcohols or unsaturated alcohols. Comonomers mentioned are styrene, divinyl benzene, vinyl toluene, diallyl phthalate and acrylic and methacrylic acids.  Peroxy catalysts specified are MEK, MiK, cyclohexanone, 2,4-dichlorobenzoyl, diacetyl and lauroyl peroxides; t-butyl, cumene, p-menthane and di-isopropyl hydroperoxides; 2,2-bis(butylperoxy) butane; and t-butyl perbenzoate. Hydroquinone may be present as inhibitor. Examples include comparative data for copolymerizations employing cobalt naphthenate as accelerator.  The mercapto acid esters are stated to give lower reaction temperatures, to effect decoloration of initially yellow unsaturated polyesters, and to donate U-V light stabilization.
Patent GB-207536-A (GB)
Title: Improvements in radio receiving systems
IPC: H01Q21/06
Filed: 1923-11-21
Abstract: 207,536. British Thomson - Houston Co., Ltd., (Assignees of Kellogg, E. W.). Nov. 21, 1922, [Convention date]. Aerials; directive signalling; multiplex signalling.-A sharply-directional receiving system comprises three or more antennµ arranged either end-on or athwart the direction of the incoming signals, and spaced apart from each other by a substantial fraction of the signal wave-length. The energy picked up by each unit is led through a separate balanced transmission line to the receiving station, provision being made for adjusting both the phase and intensity of each signal as it is impressed upon the combining circuit. Electrostatic and electromagnetic shielding means are utilized in conjunction with balancing, damping and suitably loading the transmission lines in order to avoid undesired interference or induction effects. The directive curve of the receiving system as a whole can be sharpened by adding a fourth or even a fifth antenna to a broadside or end-on row of three antennae, and increasing the intensity of the inside units relatively to the end units. In general with such multiple units the direction of zero reception can be controlled by suitably varying the intensities of individual units. The direction of maximum reception may also be " warped " or shifted, and static or interfering signals eliminated, by suitably adjusting the electrical lengths of the transmission lines from the far units relatively to those from the near units. Fig. 1 shows a receiving system of three parallel wave " antennae 1, 2, 3 of the type described in Specification 175,315, the received signals being reflected through transformers R1, R2, R3 and applied as signalling and compensating currents to balanced transmission lines L1. L3 and M1, M3 through transformers T1, T3 and S1, S3. In antenna 2 the transformers T2, S2 are coupled to an intermediate point in the aerial. The various currents are fed to a series of coupling tubes 1S - - 3N over artificial lines N1 - - N3 and 01 - - 03 or other time or phaseadjusting circuits, the intensity adjustments being effected by means of potentiometers 11 - - 16 which control the current output of the associated tubes. Additional potentiometers or intensity couplers 24 - - 29 and 31 - - 36, with corresponding sliding connections to the artificial lines, enable the system to be adjusted for the simultaneous reception of a number of different messages coming from the same or from different directions. Alternatively signals from one direction may be received at full strength whilst those from the opposite direction are eliminated. Variable coupling transformers, movable along the length of the artificial lines may replace the phase and intensity adjusters shown in Fig. 1. The general method of selective reception may be equally applied to other multiple directional units such as static and loop antennae, and to combinations of these, arranged in broadside or endon groups or rows. Specification 175, 315 is referred to.
Patent GB-279266-A (GB)
Title: Improvements relating to spray nozzles, particularly for use in cask washing machines
IPC: B05B1/26
Filed: 1926-11-22
Abstract: 279,266. Cole, R. C. J., and Cole, G. A. A. Nov. 22, 1926. Annular sheets.-A spraynozzle more particularly for use in cask washing-machines such as described in Specification 247,329, [ Class 21, Casks &c.], comprises a tube a with a slightly tapered bore having a bulbous head c with a flat seating d. On a plug g screwed in the head is screwed a cap e, the liquid passes into the annular space f and thence as an annular sheet between the cap e and face d. The nozzle may have two opposite detachable caps in order to provide two jets.
Patent GB-1109429-A (GB)
Title: Pressure relief valves
Inventor: HODGKINSON KENNETH JAMES
IPC: F16K17/08
Filed: 1964-07-20
Abstract: 1,109,429. Valves. ROTAX Ltd. 5 July, 1965 [20 July, 1964], No. 29501/64. Heading F2U. An assembly comprising integral sleeves 13, 14, 15, which is sealed to the valve body 10 by bellows 16 welded thereto, is axially slidable within the body 10 under fluid pressure at an inlet 11 against the force of a plurality of spring washers 20 whereby, at a predetermined inlet pressure, the movement of a closure 21 carried by the sleeve assembly is halted by abutment with adjustable stop 23 to permit flow through seat 19 to the outlet 12. The spring washers may be replaced by a resilient bellows comprising a plurality of oppositely disposed part conical steel washers which are welded together at their peripheries by electron beam welding.
Patent GB-298652-A (GB)
IPC: B30B9/04
Filed: 1928-10-13
Abstract: 298,652. Harburger Eisen-und Bronze werke Akt.-Ges. Oct. 14, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Platen presses. - The press-chamber has one vertical wall which can be moved inwardly under hydraulic pressure while the top wall and the bottom wall slide in horizontal guides, so that the chamber is charged and emptied in a vertical direction. The side walls 2 and end wall 5 of the chamber 1 are fixed, and the wall 6 is moved by a piston 10 working in a cylinder 11. The walls 2 have ribs 3 supporting screens 4 and the walls 5, 6 are covered by screens 7 arranged to provide interengaging wedge faces. The top 16 and bottom 17 are formed in one respectively with cylinders 20, 21, moved hydraulically over fixed pistons 24, 25. The chamber 1 is charged with the top open, as shown in Fig. 1. The top is then closed and pressure applied to the wall 6 by the piston 10. After compression, the top and bottom are opened simultaneously and th.e piston 10 is withdrawn by cylinders 20, 21, which, as they move to the right, engage lugs 40 on rails connected to the wall 6. In its rearward movement the cylinder 21 also operates linkwork 30, 39, which pushes inwards slats 9 situated between the roots of the wedge-shaped screens 7, and thus loosens the cake to facilitate its discharge. The press is applicable generally, but especially for the separation of naphthalene.
Patent GB-775840-A (GB)
Title: Device for maintaining constant the volumetric flow of a gaseous medium
IPC: G05D7/01
Filed: 1955-10-17
Abstract: 775,840. Pressure regulating valves. AKTIEBOLAGET SVENSKA FLAKTFABRIKEN. Oct. 17, 1955 [Oct. 19, 1954], No. 29587/55. Class 135. In a device for maintaining constant the volumetric flow of a gaseous medium comprising a channel 1, an arched damper 3 movable over a similarly arched partition 2 incorporating one or more apertures, the damper being actuated in opposition to a spring 12 by a pressure-sensitive membrane 5 adjacent one of the channel walls and subjected on the front to static pressure in the channel inlet 11 and on the rear to atmospheric pressure in a space 8, a stiffening disc 6, which is fixed to the rear of the membrane, is pivoted at the inlet 11. The area of the apertures in the partition 2 decrease towards the closed position of damper (shown in full lines) in accordance with a second-power curve.