baber/WOPTO huggingface dataset:
Patent GB-1293229-A (GB)
Title: Plasma generating method and means
Inventor: ROHRBERG RODERICK GEORGE
IPC: B23K10/00
Filed: 1970-05-01
Abstract: 1293229 Welding by fusion; cutting by fusion NORTH AMERICAN ROCKWELL CORP 1 May 1970 50036/70 Divided out of 1293228 Headings B3R and B3V [Also in Division H5] A plasma generating torch comprises a nozzle, an electrode 10 protruding from the nozzle, in use to create an unconfined arc, the nozzle having at least one aperture 50 which is inclined so as, in use, to create a jet of ionizable gas which intersects the axis of the electrode 10 beyond its tip, and means for providing a protective gas shield around the jet(s) and arc. In the embodiment shown in Fig. 3 replace-  able rings 82, 84 allow adjustment of the shield-  ing gas outlet size. The gas may be helium; and the electrode may be consumable or non- consumable. In the embodiment shown in Fig. 5 the tip of the torch extends at 90 degrees to  the axis of the main part of the torch, for weld-  ing in areas of restricted access. The torch may be used for seam welding or cutting. Several arrangements of circuits including one or more such torches are described. In one form (Fig. 7, not shown), two torches oppose each other across the weld seam; in another form (Fig 9, not shown), a pair of adjacent torches have an arc struck between them, the arc then being supplied with high pressure gas streams which are directed towards the work. In yet another form (Fig. 8, not shown), a liquid-cooled body (112) is placed behind and  spaced from the weld seam and acts as one ter-  minal of the welding circuit. Filler wire can be used in forming weld seams using the torch.
Patent GB-500566-A (GB)
Abstract: 500,566. Moulding-machines. BRITISH INSULATED CABLES, Ltd., and HANNA, F. L. Aug. 11. 1937, No. 22104. [Class 83 (i)] In a moulding-machine the stripping frame 2 is arrested, during the downward movement of the table 1 &c. by the frame automatically closing a valve which normally allows oil or other liquid to escape from a cylinder 25 in which a plunger 24 connected to the frame 2 works. This valve may comprise a byepass opening 26 gradually closed by the falling plunger. There may be two such plungers and to allow them to move down. when the mould has been removed, for the next moulding operation a valve 29, Fig. 4, is opened. This valve is closed again after the mould has been pressed against the head 3.
Patent GB-1473834-A (GB)
Title: Circuit for the dynamic range of a signal
IPC: H03G9/02
Filed: 1974-05-13
Abstract: 1473834 Companders DOLBY LABORATORIES Inc 13 May 1974 [17 May 1973] 50145/76 Divided out of 1473831 Heading H4R The Specification relates to a dynamic range modifying circuit as described in Fig. 10 of the parent Specification 1,473,831 in which the frequency selective circuit for introducing the impedance control voltage into the series combination consists of parallel paths containing band-defining filters and limiting means.
Patent GB-1154568-A (GB)
Title: Improvements relating to Thermographic Copying.
Inventor: VRANCKEN MARCEL NICOLAS
IPC: B41C1/14
Filed: 1965-11-26
Abstract: 1,154,568. Thermographic processes. GEVAERT-AGFA N.V. June 24, 1966 [Nov. 26, 1965], No.50441/65. Heading G2C. A thermographic process which comprises placing the light-absorbing image portions of an original in contact with a supported heat-sensitive gelatine layer containing a light-absorbing heatgenerating substance and exposing to light of such intensity and such duration through the original that the light transmitted in the background areas of the original is absorbed in the gelatine layer causing it to be heated and thus increasing the water-solubility or water-absorbing capacity of the gelatine. The latent image thus produced may be developed by (i) dipping in water and rubbing away the heated areas of the gelatine to leave a relief image or (ii) dipping in water contacting with a receptor sheet e.g. Japan paper and transferring the water-soluble areas to produce e.g. a stencil. Coloured originals may be produced by using in the heat-sensitive layer pigments of colours complementary to the colours in the original. The light exposure is preferably less than 10<SP>-1</SP> second and of high intensity. Preferably the gelatines used are those listed in Specification 985,933.
Patent GB-1406290-A (GB)
Title: Current collector
IPC: H01R39/64
Filed: 1972-11-03
Abstract: 1406290 Current collectors C H VAN TOORN 3 Nov 1972 [26 Nov 1971] 50798/72 Heading H2E An electric coupling comprises disc-electrodes 4 and 5 (Fig. 1), relatively rotatable about a common axis, bearing permanently magnetized rings 8 and 9 which act as ball-races. The magnetic attraction between these rings and the magnetizable balls 12 exerts a uniform pressure for electrical contact and maintains the balls in a circular path against the effects of gravity and rotation. In a modification (Fig. 4, not shown) the balls (38, 39) revolve in two concentric races provided by permanently magnetized rings (24-27) attached to flat magnetizable rings (32, 33) to form a closed magnetic circuit. In a further modification (Figs. 9, 10, not shown) the continuous flat rings are replaced by radial bars (56, 57) of which some may be permanent magnets (60) and others cores (61) bearing magnetizing coils (62, 64) for electrical adjustment of the magnetic forces to suit varying conditions, e.g. speed of rotation. The ball-races of this embodiment are not permanently magnetized.
Patent GB-1209477-A (GB)
Title: Improvements in or relating to electrical cable/brush assemblies
IPC: H01R39/36
Filed: 1967-11-08
Abstract: 1,209,477. Brushes for dynamo-electric machines; electric couplings. SOC. LE CARBONE-LORRAINE. 8 Nov., 1967 [28 Dec., 1966], No. 50904/67. Headings H2A and H2E. In an electrical cable and brush assembly in which the brush is moulded about one or more cables, the voltage drop between the brush and cable or cables is reduced by increasing the surface area of contact between the brush and the cable or cables, or by interposing between the brush and the cable or cables, a body which is a better conductor of electricity than the brush, or by a combination of the above methods. In embodiments employing the first method the end of the cable may be splayed or else the embedded length of cable may be increased and folded into a loop or coil. In embodiments employing the second method the body 3 interposed between the cable 2 and brush 1 may be a powder or a metal member or metal gauze. The body 3, where metal, may be crimped around the end of the cable.
Patent GB-513629-A (GB)
Abstract: 513,629. Photo-electrically-controlled engine ignition systems. BENDIX AVIATION CORPORATION. Feb. 2, 1938, No. 3285. Convention date, Feb. 3, 1937. [Class 7 (iv)] [Also in Group XL] Impulses are generated by periodically varying the illumination of a photo-electric cell which is in series with the circuit of the grid and which controls the voltage of the grid of an electronic tube and thus controls the voltage applied to the primary of a transformer. Plates 9, 11 of a rectifier 12 are connected to the ends of the secondary winding 7 of a transformer 2, the primary winding 3 being in circuit with an alternator 4. From the heated cathode 13 impulses pass by way of a choke 15 to a voltage divider comprising four resistances 18 . . . 21 in series grounded at the end remote from the choke. The plate 28 of a grid-controlled discharge tube 22 is connected to the low voltage end of the resistance 18. The heated cathode 31 is connected through the primary 23 of a transformer 24 to earth through the resistance 21, and a condenser 34 charged by virtue of the voltage drop across resistances 19, 20 is connected to electrodes of the tube 22. An inductance may be interposed between the condenser 34 and resistances 18 ... 21. The grid 35 being earthed through resistance 36 has a negative bias relative to the cathode 31 and renders the tube non-conductive. Positive bias is intermittently imparted to the grid to render the tube conductive by energizing a photo-electric cell 37 and completing a circuit through a lead 42 to a tap 43 at the high voltage end of resistance 20. Such energization takes place when light from a source 44 passes to the cell through perforations in an engine-driven member 48. In a modification, Fig. 2, an oscillating circuit 55 is resistance-coupled through a triode 52 to an amplifying tube 62, a photo-electric cell 76 being used to apply intermittently paralyzing voltage to the grid 65. Between the tube 62 and the output transformer 67 there is interposed a stage of transformer-coupled push-pull amplification 68, 69. Discharge across the gap 73 is continuous except when the photo-electric cell is rendered conductive by its exposure to the light source through one of the apertures 82. The timing and distributing mechanism shown in Fig. 3 comprises an engine-driven shaft 84 carrying the distributor rotor 102 and a cup 93. Apertures 94 expose the cell 92 to the lamp 85 in timed relation to the engine.
Patent GB-1121438-A (GB)
Title: Improvements in means for mounting dial gauges
Inventor: TURNBULL CHARLES JAMES
IPC: G04B37/14
Filed: 1965-12-06
Abstract: 1,121,438. Mounting dial gauges. ENG. PRODUCTS Ltd. Nov. 28, 1966 [Dec. 6, 1965], No.51702/65. Heading G1J. [Also in Division H1] For mounting purposes a dial gauge or like instrument has a permanent magnet 14 secured centrally to the backplate 11 thereof, and extending over a substantial proportion of the area thereof. A polepiece 15 fits between the magnet and the dial gauge. In the embodiment described the magnet is in the form of a cylinder with its axial coaxial with the dial gauge pointer and the polepiece is in the shape of a cup fitting round the cylinder.
Patent GB-1529306-A (GB)
Title: Injection moulding apparatus
IPC: H02G1/14
Filed: 1975-12-01
Abstract: 1529306 Moulding cable joints POST OFFICE 1 Dec 1975 [29 Nov 1974] 51860/74 Heading B5A A joint between one or more cables sheathed in thermoplastics 1 and a thermoplastics sleeve 2 is made by injection moulding a thermoplastics melt (e.g. polyethylene) in a surrounding mould which comprises a first part 4 having a cylindrical bore for the or each cable 1 and an injection post 5, a second part 9 with a larger bore at the region of the cable/sleeve junction, and a third part 12 having a bore smaller than part 9 for engagement with the sleeve 2. The mould part 12 may include a nylon insulating sleeve 14 so that only the end of the sleeve 2 is melted during injection. A bearing cylinder 17 supports the sleeve 2 and also the lip 18A of a disc 18 which prevents the melt flowing into the sleeve 2. The disc 18 may have a tapered flange 61 (Fig. 6, not shown) to fit the cable 1, or have slits forming sectors 21 (Fig. 3) which deflect along the cable 1. The end of  mould part 4 is sealed by insulating tape 36, and an injection cylinder is clamped to guideway 6 of the port 5. Changes of solid polyethylene are loaded through inlet 27 of cylinder 23 and are forced by an air operated piston 26 through passages 28 and nozzle 30. Heaters in the cylinder 23 or surrounding the nozzle 30 melt the polyethylene which welds to the cable sheath and the sleeve 2. The material is kept molten during injection and solidified afterwards by heating and cooling fluid in passages 10 and 11 of mould section 9.
Patent GB-1292661-A (GB)
Title: Prostanoic acid derivatives and preparation thereof
IPC: A61P1/04
Filed: 1969-10-22
Abstract: 1292661 Prostanoic acid derivatives AYERST McKENNA & HARRISON Ltd 22 Oct 1969 [22 Oct 1968 28 July 1969] 51866/69 Heading C2C The invention comprises novel prostanoic acid derivatives of the Formula I wherein (a) R<SP>2</SP> is H or C 1-3  alkyl, n is 1 to 6, R is H(OH) and R<SP>1</SP> is O ; (b) wherein R<SP>2</SP> is as defined in (a), R and R<SP>1</SP> are H(OH), and n is 1 to 3, 5 or 6; (c) R<SP>2</SP> and n are as defined in (a) and R and R<SP>1</SP> are both O ; (d) R<SP>2</SP> and n are as defined in (a), R<SP>1</SP> is OH, acetoxy, benzoyloxy, or tetrahydropyran-2-yloxy, R is O, and n is as defined in (b) when R<SP>3</SP> is OH ; and (e) n and R<SP>2</SP> are as defined in (a), R<SP>1</SP> is O, and R is acetoxy, benzoyloxy, benzyloxy or tetrahydro-pyran-2- yloxy, their preparation and the preparation of compounds of the above formula, R<SP>2</SP> is H or C 1 _ 3  alkyl, R and R<SP>1</SP> are H(OH) and n is 4 and R<SP>2</SP> is H or C 1-3  alkyl, R<SP>1</SP> is OH, R is O and n is 4. The compounds of the above formula in which R and R<SP>1</SP> are both O are prepared by treating compounds of the formula with zinc and acetic acid. Reduction of the diazo compounds thus obtained gives compounds of the Formula I above in which R and R<SP>1</SP> are both OH, R is OH and R<SP>1</SP> is O or R is O and R<SP>1</SP> is OH. Any hydroxy groups in the resulting compounds may be esterified or etherified, and any esters obtained hydrolysed. Pharmaceutical compositions contain the above novel compounds (a), (b) or (c) and pharmaceutically acceptable carriers or diluents. The compounds possess hypotensive, antihypotensive, gastric acid secretion inhibiting and/or bonclospasmolytic properties.
Patent GB-1134887-A (GB)
Title: Dictating system
IPC: H04M11/10
Filed: 1965-12-08
Abstract: 1,134,887. Centralized dictation systems; switching circuits. INTERNATIONAL BUSINESS MACHINES CORP. 8 Dec., 1965 [29 Dec., 1964], No. 51986/65. Headings H3T and H4K. In a centralized dictating system, remote dictating stations are connected by individual transmission lines to a central recorder having several recording machines and control the operation of a recording machine by varying the current in the wires of the lines. Each recording machine has a stepping switch at which each dictating station's line terminates (not shown in Fig. 5). When a dictating station calls the central station by closing hook contacts CS1, CS2, the stepping switch of the first free recording machine hunts for the calling line, whereupon the recording machine is seized and seizure tone transmitted to the calling dictating station. The usual operations of dictate, playback, correction, end of letter, and attendant summons are controlled by keys D, PB, C, E and A which put a short circuit, or 560 ohms or 560 ohms parallelled with 3À9 kilohms between the ground wire 100 and wires 98 and 99. At the recording machine none, one or both relays of the two pairs of relays R1, R2 and R3, R4 are operated accordingly. The relays are connected to the wires 98 and 99 by transistors 101 to 103, transistors 102 and 104 are biased to conduct at a different level of direct current to transistors 101 and 103. Instead of signalling with direct current alternating current may be used. The recording medium is a magnetic band and provision is made for sending a warning signal to the dictator when the end of the band has been reached; the attendant may be notified if less than four minutes recording time is left on a band when the recording machine is released. Busy tone is sent to a dictator if there is no free recording machine available. The dictator has keys for marking a paper tape, which is scanned at the same rate as the magnetic band, relating to end of letter and correction items.
Patent GB-1082029-A (GB)
Title: Process for making self-extinguishing moulded articles
IPC: C08F265/06
Filed: 1965-12-09
Abstract: A moulded article is made by the polymerization and curing, in the presence of a polymerization catalyst and at temperatures of 50 DEG to 150 DEG  C., of mixtures comprising an ester of acrylic acid or methacrylic acid and 5 to 25% by weight of a halogen- and phosphorus-containing substance produced by reaction of a halogen-containing ester of H3PO3 with P2O5. The monomer, e.g. methyl, ethyl, butyl, glycol or allyl (meth) acrylate, optionally mixed with e.g. butadiene, styrene or divinyl benzene, may be used in the form of a monomer-polymer syrup with the flame-protection agent which preferably contains Cl or Br.  A catalyst, e.g. a ,a 1 - azoisobutyrodinitrile, azobiscyclohexane nitrile, benzoyl peroxide, lauroyl peroxide or dicyclohexyl peroxide is included in the mixture. 0.1 to 1% of water or an aliphatic alcohol containing 1 to 4 carbon atoms may also be included.  In the examples methyl methacrylate is polymerized in moulds in the presence of reaction products of tris(bromoethyl)phosphite with varying amounts of P2O5.  The catalyst is azoisobutyrodinitrile and stearic acid is included in the mixture. The mouldings are cured.
Patent GB-1398270-A (GB)
Title: Adjustable door stay
IPC: E05C17/28
Filed: 1971-11-12
Abstract: 1398270 Door holders STANMORE SPRINGS Ltd 23 Oct 1972 [12 Nov 1971] 52676/71 Heading E2A A door holder comprises a semi-closed metal or plastics channel member 11 which is secured to the door or its frame by brackets 13, 14 secured to angularly adjustable end-plugs 21, 24, and a link 45 pivoted to the frame or the door and also at 46, 27 to a slider 26 having an adjustable friction pad 31, and a keeper 34, 42 for engaging an adjustable ball-catch 38 in its extreme position for holding the door open. The pivot pin 27 is secured by a grub-screw 29. There is a resilient endbuffer 59.
Patent GB-1188034-A (GB)
Title: Means for Securing Clips for Electric Cable Inlets.
Inventor: HUBE WALTER
IPC: H02G3/06
Filed: 1967-11-20
Abstract: 1,188,034. Carrying conductors into casings. KABELWERK OBERSPREE VEB. 20 Nov., 1967, No. 52774/67. Heading H2E. An arrangement for sealing a cable at its entrance to a housing 11 comprises a sleeve 8 projecting from the housing and sealed to the cable sheath at 6 and a tubular member 1, fitting round the sleeve at one end and supported on the cable at the other, retained by projections 5 on the sleeve engaging apertures in it. The cable may be built up at 9 by winding a tar impregnated material. The tubular member may be filled with a grouting material introduced after removing a cap 13. The member may be in two parts with longitudinal bolted flanged joints.
Patent GB-1495391-A (GB)
Title: Electromedical apparatus
IPC: A61N1/372
Filed: 1974-12-06
Abstract: 1495391 Electromedical apparatus MEDTRONIC INC 6 Dec 1974 [7 Dec 1973 (2)] 52869/74 Heading A5R [Also in Division H4] An electromedical apparatus for the stimulation of a biological system in a living body, comprises a transmitter, Fig. 1, including a pulse-generating circuit for producing at least two pulse trains (3C), (3D), Fig. 3 (not shown), and a body implantable receiver, Fig. 2, including two electrodes 80, 83 and a receiver circuit for applying each of said pulse trains to a respective one of said electrodes. The pulses applied to the electrodes may be non- simultaneous, and their amplitudes are independently adjustable. Square pulses from a pulse generator 10, Fig. 1, at twice the desired stimulation rate are fed to gates 20, 22, a D-flip-flop 26 which alternates high and low at its output terminals q, q for every other input pulse, and a monostable multivibrator 42 triggering either at the leading or trailing edge of the input pulse, the width of the alternate output pulses of the multivibrator being dependent upon the state of the output q for channel identification. The gates 20, 22 let the input pulses through when there is a signal on line 28 or 29 respectively, and the amplitudes of the pulses on lines 31, 32 are varied independently using potentiometers 15, 17.  A receiver block 86, Fig. 2, is tuned to receive the pulse trains modulated at a carrier frequency of 455 KHZ whereas a section comprising an inductor 56 and a capacitor 57 develops a 1.5 MHZ signal, the latter being the operating frequency of an oscillator 45. The two pulse trains of different widths on a line 66 operate a latch 88 comprising a comparatively low threshold gate 90, and a gate 91 through the charging of a capacitor 69, to apply each of the pulse trains on a line 70 to its respective electrode 80 or 83. In another embodiment of the transmitter, Fig. 4 (not shown), both the pulse trains are modulated at different carrier frequencies (460 KHZ arid 200 KHZ) and are transmitted through a common antenna 35. In a modification, Fig. 5 (not shown), of the transmitter of Fig. 4, instead of potentiometers 12, 15, 17, a circuit comprising analog switches and potentiometers provides for adjustment of the minimum and the maximum amplitude levels of the pulse trains. In a modified receiver, Fig. 6 (not shown) for use with the transmitters of Fig. 4 or 5, one of two capacitorinductor voltage dividers is resonating with the receiver antenna at a carrier frequency of 460 KHZ and the other at a frequency of 200 KHZ, and each is connected to the respective electrode through blocking diodes. Instead of a RF. link the transmitter and the receiver may be connected directly. The pulse power level may also be controlled by independently regulating the pulse width or pulse shape. When the pulse trains are transmitted on different frequencies, their pulse repetition rates may be controlled independently of each other.
Patent GB-1150709-A (GB)
Title: Improvements in or relating to Inking Mechanisms for Printing Machines
Inventor: TIMSON ERNEST ARTHUR
IPC: B41F33/00
Filed: 1966-11-26
Abstract: 1,150,709. Inking apparatus. E. A. TIMSON. 21 Nov., 1967 [26 Nov., 1966], No. 53053/66. Heading B6C. [Also in Division G1] A device for measuring, or comparing with a predetermined standard, the amount of ink on an inking roller 2 comprises a transparent or translucent roller 4 which is rotated in contact with the inking roller, and through which light is shone, the intensity of the light transmitted by the roller with a covering of ink being a measure of the amount of ink on the roller 2. The light is emitted by a lamp 10 outside the roller 4, and the intensity of the transmitted light is measured by a light-sensitive cell 9 mounted within the roller or compared with a standard. The lamp may alternatively be outside the roller and the light-sensitive cell inside. The output of the light-sensitive cell may actuate a measuring instrument or means for controlling the ink feed. The roller 4 is mounted by means of bearings 6 for rotation about a fixed spindle 5. The spindle 5 is supported by cantilevers 7, and is made hollow to accommodate leads from the cell 9, which is supported by the spindle.
Patent GB-1217965-A (GB)
Title: Xanthating process
IPC: C08B9/04
Filed: 1968-11-08
Abstract: 1,217,965. Cellulose xanthate. ING. A. MAURER S.A., and BUSS A.G. 8 Nov., 1968 [10 Nov., 1967], No. 53139/68. Heading C3A. Porous, non-liquid alkali metal cellulose is completely xanthated by treatment, e.g. above 30‹ C., with CS 2  in a continuously operating worm kneader, e.g. having a single reciprocating screw. Gaseous or liquid CS 2  may be used and the reaction conducted under an inert gas, e.g. N 2 . The product may be maintained at #30‹ C. for 5-30 min. and then dissolved in caustic alkali to form viscose.