baber/WOPTO huggingface dataset:
Patent GB-908755-A (GB)
Title: Improvements in or relating to circuit arrangements for dynamic focusing in cathode-ray tubes
IPC: H04N3/26
Filed: 1961-02-14
Abstract: 908,755. Cathode-ray tube circuits. PHILIPS ELECTRICAL INDUSTRIES Ltd. Feb. 14, 1961 [Feb. 17, 1960], No. 5454/61. Class 40 (7). In a circuit arrangement providing a focusing electrode 18 of a cathode-ray tube (C.R.T.) with a parabolic voltage to compensate for deflection defocusing, the deflection amplifier output circuits include a transformer 3 with which deflection coils 15 are coupled, circuit means 20 ... 23 supply an adjustable D.C. voltage for static focusing, a booster diode 8 is incorporated, transformer winding 11 is connected in series between capacitors 13, 14, one end of capacitor 14 is connected to a point of constant potential and the other end of that capacitor supplies the parabolic voltage to electrode 18. An additional and phase-reversing transformer to afford correct parabolic voltage phase is thereby avoided. Radiation from the conductors to the deflection coils is obviated by providing winding 12. The circuit shown is for line deflection in a television receiver; output valve 1 may be replaced by a transistor. Line fly-back pulses are utilized via diode 9 to provide E.H.T. for the C.R.T.
Patent GB-420513-A (GB)
Title: Process for prolonging the life of pressing, drawing, stamping and similar tools
IPC: C21D1/00
Filed: 1933-02-23
Abstract: The life of pressing, drawing, or stamping tools of steel, alloy steel, brass, or bronze is prolonged by rapidly cooling prior to use, from high temperatures which in the case of steel and alloy steel lie between 300 DEG  C. and the Ar1 point and in the case of brass or bronze between 400 and 700 DEG  C.  In an example, a roller composed of an alloy steel containing 0,8 per cent of carbon and 1,4 per cent of chromium is suddenly cooled from 480 DEG  C. in water to about 20 DEG  C.  Reference has been directed by the Comptroller to Specifications 309,132, [Class 72], and 373,453.
Patent GB-1419354-A (GB)
Title: Location of short-circuits in multilayer circuits
IPC: G01R31/08
Filed: 1974-02-07
Abstract: 1419354 Testing printed circuit boards SIEMENS A G 7 Feb 1974 [9 March 1973]  05587/74 Heading G1U Once two accessible conductors that should be electrically isolated from each other, on a multilayer printed circuit board have been discovered to be shorted together, the location of the short is identified by causing a small low frequency current (e.g. 5mA at 600 c/s) to flow into and out of the two conductors, and by tracing the actual path followed by the current by a magnetic pickup head of the type used in tape recorders. It should then be possible to deduce the location of the short by reference to the circuit diagram for the board.
Patent GB-394288-A (GB)
Title: Improvements in and relating to charging appliances for pneumatic conveying plants
IPC: B65G53/46
Filed: 1933-02-23
Abstract: 394,288. Pneumatic conveyers. SCHICHT, F., 19, Eisenstiiekstrasse, Dresden. Feb. 23, 1933, No. 5606. Convention date, Feb. 24, 1932. [Class 78 (i).] Material is fed to a pneumatic conveyer 2 by oppositely rotating rollers 4, 5, Fig. 1, the peripheral speed of which is the same as that of the conveying air as it passes the opening 1. The roller 5 is carried by a pivoted arm 8, and is maintained in contact with the roller 4 by spring means. The rollers may be replaced by similarly disposed endless belts, or, by endless belts 9, 11 arranged as in Fig. 3.
Patent GB-1282114-A (GB)
Title: Improvements in the manufacture of light weight, insulating refractories
Inventor: GLASER WILLY
IPC: C04B35/80
Filed: 1970-01-12
Abstract: 1282114 Lightweight refractories W GLASER 12 Jan 1970 5631/69 Heading C1J Lightweight refractories are obtained from thermally decomposable compounds of refractory oxides by bringing hot, molten hydrated compounds of the oxides into contact with inorganic fibrous or porous refractory material shaping, cooling to crystallize out the hydrated compounds and give solid intermediate products which are expanded by thermal dehydration of the compounds which also dissociate into oxide refractories. The fibres can be organic e.g. cotton cellulose or of synthetic resins, glass or Al silicate. Hydrated sulphates of Al, Mg and Zr and their double compounds with (NH 4 ) 2 SO 4 , are exemplified and also Na 2 Cr 2 O7.2H 2 O. Chamotte and zircon are optionals.
Patent GB-275112-A (GB)
Title: Improvements in spinning mules
IPC: D01H13/16
Filed: 1927-03-01
Abstract: 275,112. Stocks, R. March 1, 1927. Stop-motions.-To prevent the engagement of the taking-in friction in a mule when the rimband splicing breaks, a peg C, Fig. 1, controlled by a spring E and carrying a feeler D extending into proximity to the rim-band F, is pivoted on the swing safety catch A, which normally prevents movement of the taking-in lever B until it is swung to one side by the lever H at the completion of the stretch. On breakage of the splicing the feeler is thrown upwards and the peg C moved, so that the lever H can move without operating the catch A. An additional catch J, Fig. 4, may be mounted on the headstock independently of the catch A. The peg C is mounted on the catch J and normally engages the headstock to hold the catch away from the taking-in lever. When the catch is operated, the end K falls into position to stop movement of the lever B. The peg C may be mounted on the headstock and engage the catch J.
Patent GB-397525-A (GB)
Title: Improvements in easy-chairs, settees and the like convertible into beds
IPC: A47C17/20
Filed: 1932-02-25
Abstract: 397,525. Bed-settees. BEILIN, L., 64, Menelik Road, Hampstead, and LEE, H. H., 76, The Avenue, Brondesbury, both in London. Feb. 25, 1932, No. 5693. [Class 52 (ii).] In a convertible bed-settee the seat 7 is pivoted, at each side, to a lever 11 which is pivoted to the settee frame and is so spring-controlled that while being positively held against forward rotation during the initial closing movement of the extended seat, it is simultaneously held against backward rotation until co-operating means between the seat and the settee frame become effective to cause the lever to be positively rearwardly rotated against the spring during the further closing movement. Fig. 5 shows such a device in which the lever 11 is held by the spring 18 against the stop 15 until the bracket 28 engages the inner face 50 of the bracket 12, while in Fig. 3 the stop 15 is shown as the middle portion of a Z-shaped bracket 16, 17. A strut 21, or struts 25, 26 may be provided to support an intermediate section of the bed frame.
Patent GB-867352-A (GB)
Title: Improvements in or relating to the manufacture of electron discharge tubes having a photo-conductive target
Inventor: SCHAGEN PIETER
Filed: 1958-02-21
Abstract: 867,352. Coating by vapour deposition. MULLARD LTD. Nov. 7, 1958 [Feb. 21, 1958], No. 5707/58. Class 82(2) [Also in Group XL(a)] In a method of depositing a photo-conductive target layer on a supporting base within an electron discharge tube, the supply of photo-conductive material is formed on part of the internal structure for the tube prior to the insertion of this structure within the envelope. After sealing a foot or base to the envelope, the envelope is evacuated through an exhaust tube and the photo-conductive material is evaporated either in vacuo or in a gas such as argon at low pressure, to form the target layer. In the former case the exhaust tube may be sealed-off either before or after evaporating the material. A layer 25, Fig. 3, of photo-conductive material, preferably pure red antimony trisulphide, may first be formed on a collector grid 1 by evaporation in vacuo, Fig. 2, not shown. The grid 1 of fine copper mesh is sandwiched between rings 2, 3 of copper-nickel alloy, each of the members 1, 2, 3 being first nickel-plated and then rhodium-plated. Alternatively a supply of photo-conductive material may be provided in an inturned portion 35, Fig. 5, of the anode 20. In each case, the photoconductive material may be evaporated by means of heating coil 38, the upper part of the Vidicon envelope 18 being surrounded by a cooling jacket 29 containing water. The target layer 25<SP>1</SP> is formed on a transparent conducting coating of tin oxide on the glass end plate 18<SP>1</SP> which is sealed to the envelope through a ring 19 of fernico alloy, undue heating of this ring being prevented by cylinder 33. Specification 707,125 is referred to.
Patent GB-1350337-A (GB)
Title: Apparatus for the contacless inductive transmission of measure data in the form of electrical voltages and currents
IPC: G01K13/08
Filed: 1972-02-08
Abstract: 1350337 Inductive signalling BAGMAG BARMER MASCHINENFABRIK AG 8 Feb 1972 [9 Feb 1971] 5743/72 Heading H4U In an apparatus for inductive signalling between two relatively rotatable bodies, a fixed part 2 of a machine carries a coil 4 provided with a ferromagnetic core 6 and a rotating shaft 1 carries a coil 3 having a ferromagnetic core 5. As shown, the coils are arranged coaxially but they may be mounted with their axes parallel, Fig. 2a (not shown). The pole surfaces of the core 6 adjacent the air gap 7 are made small in relation to the pole surfaces of the core 5 and this is stated to prevent transmisson errors due to the effects of temperature changes on the air gap. The cores preferably consist of two or more laminations of soft iron with the addition of nickel.
Patent GB-1097111-A (GB)
Title: Improvements in or relating to apparatus for reproducing electrical signals from a moving record
Inventor: PERCIVAL WILLIAM SPENCER
IPC: G11B5/00
Filed: 1964-02-12
Abstract: 1,097,111. Sound reproducing circuits; automatic phase control systems. ELECTRIC & MUSICAL INDUSTRIES Ltd. Feb. 12, 1965 [Feb. 12, 1964], No. 5827/64. Headings H3A and H4J. [Also in Division G5] Distortion produced by variations in speed of a record, e.g. a gramophone record or a magnetic tape, is reduced by detecting the corresponding phase modulation of an auxiliary reference signal recorded in proximate relation, and using the output of the detector to impose a variable delay on the information signal. In Fig. 1 an audio signal and an ultrasonic reference signal from the replay head and amplifier 1 are separated by filters 2 and 3, and the audio signal passes directly to an amplifier C1 and via a delay unit 6 to an amplifier C2. Any phase modulation of the reference signal is detected by a detector 7 which produces equal and opposite output signals Œ V c  which control the gains of amplifiers C1 and C2. It is shown that the effect of this is to produce a variable delay in the audio output to compensate for the phase distortion introduced by the recording/playback process. Amplitude modulation noise may be reduced by the amplitude detector 15 which detects variations in amplitude of the reference signal and feeds a corresponding control voltage V c <SP>1</SP> to amplifiers C1 and C2 in a sense to increase their gain when the amplitude of the reference signal falls. The system may be applied to the playback of video or analogue signals.
Patent GB-1170543-A (GB)
Title: Container, particularly a Urine Container, and method for making said container
Inventor: BOYE HELMER
IPC: A61G9/00
Filed: 1967-02-08
Abstract: 1,170,543. Receptacles. H. BOYE, J. KRISTENSEN and P. E. RASMUSSEN. 8 Feb., 1967 [8 Feb., 1966], No. 5924/67. Heading A4N. [Also in Division B8] Receptacles particularly those used as urine containers consist of folded sheet material glued or welded together characterized by mutually covering layers of material defining a space between them, said layers being connected at all their edges with an inlet aperture in one of the edges and being folded to form a substantially Y-shaped cross-section two branches of which in the storage position in empty condition are swung towards each other and abut against each other, said branches being pivoted away from each other in the position of use in full condition. The filling aperture may comprise a region where the edges of the two layers are not mutually connected. At the filling aperture each of the two layers of material has an outward projecting flap that is folded into the container so as to abut against the flap of the other layer thus forming a one-way valve. A glued region of the trunk branch contains an aperture in each of the two layers which form a handle. The container is made out of a plate of sheet material that is symmetrical in relation to a central folding line, and which is stamped out from a band of sheet material thereby localising the necessary folding lines. The work piece is then folded, the symmetrical portions being caused to cover each other completely and thus form the collapsed container with two or more branches. The free edges are finally glued up to form the container.
Patent GB-194129-A (GB)
Title: Improvements in rotary earth boring drills
IPC: E21B10/24
Filed: 1922-02-28
Abstract: 194,129. Tucker, A. M. Feb. 28, 1922. Bore-hole apparatus.-In a well drilling tool comprising a head secured to a drill stem and carrying rolling cutters, which head may be longitudinally divided, flushing fluid is conveyed to the cutters through a removable pipe secured in the head. Further removable pipes may convey lubricant to the cutter bearings. In the form shown, a longitudinally divided head 1 has its parts connected by bolts 13, cotters 14<1> and a threaded connection with the drill stem 3. Rolling cutters 11 are mounted at the base of the head, and reaming cutters 20 are mounted on spindles 22 in connected lateral pockets 21: the spindles 22 have squared ends engaging corresponding recesses to prevent rotation. A collar 5 is threaded to a lubricant container 7, the head 1 and a pipe 25 mounted in grooves in the parts of the head; passages 27 in the collar convey flunshing water from the drill stem 3 to the pipe 25 and further passages 14, 15 convey lubricant to an annular passage 16 and thence to the cutters through pipes 17 removably held in the head.
Patent GB-968028-A (GB)
Title: Drive assembly
IPC: D06F37/20
Filed: 1961-02-17
Abstract: 968,028. Belt tensioning arrangements. BORG-WARNER CORPORATION. Feb. 17, 1961 [Feb. 19, 1960], No. 6035/61. Heading F2Q. Automatic adjustment of belt tension in a washing machine drive wherein a reversible motor M drives through a belt 17 pulleys 20, 15 respectively fast with a pump 17 and a wash agitator or spin tub, is effected by pivotally mounting the motor on a fixed plate 36 so that it pivots from one predetermined position (Fig. 2) to another (Fig. 3, not shown) on motor reversal and under varying load moves pivotally about the predetermined positions to vary belt tension. The motor M is rigidly secured to a plate 23 which, as shown, carries pins 45, 46 engaging cam slats 42, 43 in the plate 36 whilst the motor shaft 19 passes through a slot 44 connecting the slots 42, 43. The motor is initially urged into engagement with the belt by a spring 82. In Figs. 8-10 (not shown) the plate 36 carries the pins which engage cam slots in the plate fast with the motor.
Patent GB-726985-A (GB)
Title: Air-cooled two-stroke internal combustion engines
IPC: F02F1/34
Filed: 1953-03-04
Abstract: 726,985. Cooling and construction of cylinders. KLOCKNER-HUMBOLDT-DEUTZ AKT.-GES. March 4, 1953 [Oct. 11, 1952],No. 6039/53. Class 7 (2). An air-cooled two-stroke engine has a piston controlled exhaust port 6, and an exhaust pipe 7 connected directly to a cylinder 1 mounted to allow axial movement in acrankcasebore 4 and suspended, together with a cylinder head 2, from a cooling-air guide hood 8 which fits at the level of the exhaust port 6 on an engine casing part 9 also acting as a cooling-air guide. As shown, bolts 10, 11 respectively secure the cylinder 1 and head 2 to the hood 8 and the latter to the part 9. Cooling air impinges on the cylinder 1 on the side remote from the pipe 7 and is concentrated thereon by shaping cylinder cooling ribs 14 as shown in Fig. 2 A conical combustion chamber 12 and fuel injection nozzle 13 are provided. Inlet ports 5 are provided.
Patent GB-100402-A (GB)
Title: Calculating Apparatus for use in Schools also Available for Ruling Lines.
Inventor: ARVIN GEORG JULIUS
IPC: G09B19/02
Filed: 1916-04-27
Abstract: 100,402. Arvin, G. J. May 3, 1915, [Convention date]. Rulers.-A square frame, provided with ten equidistant parallel bars, and for use in teaching arithmetic, may also be used for ruling lines.
Patent GB-496090-A (GB)
Title: Improvements in photographic diazotype processes
IPC: G03C1/58
Filed: 1938-02-25
Abstract: 496,090. Photographic diazotype processes. KALLE & CO. AKT.-GES. Feb. 25, 1938, No. 6054. Convention date, March 8, 1937. [Class 98 (ii)] ' In preparing diazotype prints, 2: 3-dioxynaphthalene and its derivatives and substitution products are used as azo components in the sensitive layer or in the developer. Suitable derivatives are the mono-ethers such as mono-oxyethyl ether, mono-N-dimethylamino- (#)-ethyl ether and monoglycollic acid ether. Carboxyl and sulpho groups are suitable as substituents in the nucleus. In examples, (1) the zinc chloride double salt of diazo-4- amino-1-diethylaminobenzene or of diazo-1- monoethylamino-2-methyl-4-aminobenzene or of the diazo compound of 4-amino-1-benzoylamino-2 : 5-diethoxybenzene are used with 2: 3-dioxynaphthalene ; (2) the zinc chloride double salt of diazo-1-diethylamino-4-aminobenzene or diazo-p-aminodiphenylamine is used with 2: 3-dioxynaphthalene-6-carboxylic acid ; (3) diazo-1-diethylamino-3-ethoxy-4- aminobenzene is used with 2:3-dioxynaphthalene mono-oxyethylether; (4) the zinc chloride double salt of diazo-4-amino-1-diethylaminobenzene is used with the mono-N-diethylamino- (#)-ethyl ether of 2 3-dioxynaphthalene or with the monoglycollic acid ether of 2:3- dioxynaphthalene ; and (5) the diazo compounds under (1) are used with 1-methyl-2 : 3-dioxynaphthalene or another alkylated derivative. Additions such as citric and tartaric acids, thiourea, sodium salts of naphthalene trisulphonic acid, and aluminium sulphate may be made to the layers.
Patent GB-514101-A (GB)
Title: Improvements in mechanism for causing intermittent film movement
IPC: G03B1/18
Filed: 1938-02-25
Abstract: 514,101. Kinematograph apparatus. HOLMES, O. J. Feb. 25, 1938, No. 6057. Convention date, Feb. 25, 1937. [Class 97 (i)] An intermittent sprocket is driven by a mechanism of the cam-and-star-wheel type in which the cam element is adjustable to vary.the time occupied by each film shift and to permit its reduction; the cam element may consist of a wire or the like adjustably mounted on a cam structure. As. shown in Figs. 5 and 8, the shaft 84 of the sprocket 50 carries a star wheel 64 intermittently rotated by a driven cam structure comprising a member 88 for locking the star between film shifts and a wire 102 for effecting the film shifts. The star. slots are bounded by parallel surfaces connected by a curved surface and by splayed surfaces 96 which engage corresponding surfaces 95 on the member 88. The member 88 is secured to a carrier member 92, and its surfaces 94 are interrupted at 98 and relieved at 118 to permit passage of the star teeth. The carrier member 92 is formed with bed surfaces to which supports 104, 106 for the cam wire 102 are adjustably secured by screws 108, 110, and the wire 102 is adjustably secured in a hole in each support by set screws 112, 114. By adjusting the setting of the wire the star may be advanced one tooth during rotation angles of the cam structure varying between 60 degrees and 36 degrees, the advance being effected with gradually increasing acceleration and deceleration. In this construction. the leading end of the wire enters the second star slot from that engaged by the member 88, and moves it to the position of the first slot therefrom as shown in Fig. 8. Fig. 15 shows a modification in which the leading end of the wire 102, is mounted in an adjustable support 104a on the carrier member and the other end is adjustably held in a hole in the member 88 by a set screw 114a. In this construction, the wire enters the star slot next to that engaged by the member 88 and leaves it when it is in position to be enagaged by the member 88. The shaft 84 may be carried by a plate having clearance holes for screws by which it is held so as to be adjustable for wear between the star teeth and the member 88. The film on the sprocket 50 may be simultaneously engaged by four teeth.
Patent GB-138736-A (GB)
Title: Appliance for raising, lowering and transferring loads with particular reference to an improved method of working the towing gallows used in vessels such as fishing trawlers and minesweepers
IPC: B63G7/02
Filed: 1919-03-11
Abstract: 138,736. Hopkins, C. J. W. March 11, 1919. Rollers, fair-lead, arrangement and disposition of.-The pivoted towing gallows 1 of a trawler, mine-sweeper, &c. is raised and lowered by two sets of chains 3, 6 and a sheerlegs 4 which is connected to the gallows by a link 5. The chain 3 is secured to the gallows and the chain 6 is fastened to the sheer-legs.
Patent GB-390618-A (GB)
Title: Improvements in or relating to eddy current electric motors for talking-machines
IPC: H02K17/08
Filed: 1932-03-01
Abstract: 390,618. Induction machines. BOSCH AKT.-GES., R., 4, Militõrstrasse, Stuttgart, Germany. March 1, 1932, No. 6121. Convention date, March 16, 1931. [Class 35.] In an eddy-current motor for phonographs, a cup-shaped rotor is attached to the turntable and extends between the stator electromagnet and a magnetic cup which contains, and completes the' magnetic circuit of, the stator electromagnet. In the form shown, the rotor p extends downwardly between the upturned flange a of the stator .casing and the double three-pronged field magnet d, the flange a serving also as a magnetic yoke. The cup a also contains a governor s and a condenser connected in series with the coils on the outer limb of the stator magnets, the coils on the inner limbs of which are connected directly across the supply. Specifications 311, 703, [Class 35, Dynamo-electric generators &c.], and 375,721 are referred to.
Patent GB-138738-A (GB)
Title: Improvements in the construction of doors and other wooden frameworks
IPC: E06B3/76
Filed: 1919-03-12
Abstract: 138,738. Angus, J. March 12, 1919. Panels and panelled work.- The framing is grooved at 2 to receive sheet metal panels. Rabbeted mouldings 4 enter the grooves and hold the panels in place. The panels have bent up tongues 3 which are forced into the frame.
Patent GB-992481-A (GB)
Title: Method of and apparatus for the analysis of gases
Inventor: NEUBERT JOHANNES
IPC: G01N25/14
Filed: 1964-02-13
Abstract: 992,481. Gas analysis. HOCHVAKUUM DRESDEN VEB. Feb. 13, 1964, No. 6162/64 Heading G1B. A method for the analysis of quantities of gas smaller than 10<SP>-4</SP> and (N.T.P.) at pressures lower than 10<SP>-1</SP> Torr e.g. a residual gas contained in a vacuum system comprises first adsorbing the gas on a fine grain solid material 3 e.g. glass or metal powder of grain size below 1 mm cooled to an extremely low temperature below -78‹C. by liquid nitrogen 4, and subsequently subjecting the material 3 to continuous heating by a movable oven 7, the individual components of the residual gas being described one after the other in dependence on the rise in temperature caused by the heating, the temperature being measured by a thermocouple 8. In the apparatus shown the material 3 is tungsten powder disposed in a U-type 2. The gas is adsorbed on to the powder by cooling in liquid nitrogen and the oven 7 is then moved down at a constant speed. The described gases are detected in a detector tube 5 and the temperature at which desorption takes plase is characteristic of the particular gas desorbed.