baber/WOPTO huggingface dataset:
Patent GB-708413-A (GB)
Title: A method of and device for measuring thickness by ultrasonic pulses
IPC: G01B17/02
Filed: 1952-07-30
Abstract: 708,413. Ultrasonic testing devices. KRAUTKRAMER, J., and KRAUTKRAMER, H. July 30, 1952 [Nov. 8, 1951], No. 19291/52. Class 118 (2). In an ultrasonic pulse-echo system for determining the thickness of sheet material the recurrence frequency of the multiple echoes caused by multiple reflection of a transmitted pulse between the two surfaces of the sheet is measured, the transmitter pulse recurrence frequency being low enough to ensure that the echoes of one pulse die away before the next pulse is transmitted. The echo recurrence frequency is measured by. applying the demodulated echo wave pulses to a circuit which is tuned to resonate therewith, the resonance condition being indicated by applying the output from the circuit to a cathode-ray tube on to a rectifier and voltmeter. For thick sheets, the measurement may be made on one harmonic of the echo frequency and checked by testing on another harmonic. The demodulator and turnable circuit may comprise a single unit which can be plugged into a conventional type testing device.
Patent GB-1244475-A (GB)
Title: Improvements relating to a child's paintbox
IPC: B44D3/04
Filed: 1970-04-22
Abstract: 1,244,475. Paintboxes. GUNTHER WAGNER PELIKAN-WERKE. 22 April, 1970 [10 July, 1969], No. 19332/70. Heading B6P. A paintbox comprises a plurality of colour cups 1 each attached by a single edge only to a support member by a cantilever joint such that the cup is otherwise clear of the box. The support member may be a surrounding rim of the box or may be a rail 10 as shown, the rail being transparent and including magnifying portions 13 for colour labels beneath the rail.
Patent GB-902997-A (GB)
Title: Electrical pulse generator
IPC: H03K5/156
Filed: 1961-05-30
Abstract: 902,997. Transistor amplifying; pulse circuits. INTERNATIONAL BUSINESS MACHINES CORPORATION. May 30, 1961 [June 2, 1960], No. 19440/61. Class 40 (6). An electrical pulse generator includes a magnetic core having two input windings wound in opposition, input pulses being applied to the first winding through a linear impedance and to the second winding through a voltage variable non-linear impedance, e.g. a Zener diode such that the ratio of the currents in the two windings is dependent upon the magnitude of the input pulse. As shown in Fig. 1, a core 10 has primary windings 12, 14 connected to input terminal 20 via resistor R and Zener diode D respectively. If the input pulses are below a certain voltage as at 22, 24, Fig. 3, diode D does not conduct and most of the current flows through resistor R and winding 12 such that output pulses 32, 34 are provided on output winding 16. As the magnitude of the input pulse increases, 26, the diode operates in a partial breakdown area so that equal currents flow through it and resistor R such that there is no resultant pulse on the output winding. When the input pulses 28, 30 are of sufficient magnitude to cause the diode to operate in its breakdown region most of the current flows through the diode and the output pulses 36, 38 are of magnitude similar to pulses 32, 34 but of opposite polarity. The circuit may be employed as a driver for a coincident selection magnetic core memory. By utilizing such a circuit to energize a particular selection line of a memory, wherein the load 18 may be considered a row or a column selection line the pulses 32, 34 may be considered half read and full read select pulses respectively and pulses 36, 38 may be considered half write and full write select pulses. The circuit may also be used as a pulse shape detector.
Patent GB-530818-A (GB)
Title: Improvements in or relating to the manufacture of explosives
IPC: C06B23/04
Filed: 1939-07-04
Abstract: 530,818. Explosives. HALLETT, C. S. July 4, 1939, No. 19441. [Class 9 (ii)] An explosive composition, particularly for use in coal mines, comprises a mixture of a perchlorate of an alkali or alkali earth metal with a carbonaceous substance, a small proportion not exceding 6 per cent. of a sensitizing agent such as sugar or bichromate, together with a salt such as sodium chloride which acts as a cooling agent and is in excess of 20 per cent., the mixture being further characterized by the absence of any nitro-compounds. The carbonaceous material may comprise coal-tar pitch, bitumen, coal dust, charcoal, graphite or lampblack. Preferably the ingredients are mixed with a small proportion of water (about 15 per cent. by weight) which is subsequently expelled by gentle heating to a temperature of about 40‹C.
Patent GB-187682-A (GB)
Title: Improvements in and relating to the construction of permanent descriptive signs and the like
IPC: G09F7/16
Filed: 1921-07-19
Abstract: 187,682. McDowell, T. J. July 19, 1921. Facing bricks, blocks, and slabs.-Inlaid letters &c. A arranged to project from a concrete block are formed with bases larger than the outer portions. During the moulding operation, the letters are positioned by a die C which engages theraised portions while concrete is poured overtheir larger base portions. Differently coloured materials may be used.
Patent GB-839399-A (GB)
Title: Improvements in and relating to pipe connections
IPC: F16L19/10
Filed: 1957-06-20
Abstract: 839,399. Pipe joints. GRESSEL A. G., E. June 20, 1957 [June 23, 1956; April 10, 1957], No. 19491/57. Class 99(1). A sleeve-like coupling element 4 having at one end an internal screw-thread and screwed on to an externally screw-threaded coupling element 3 is provided with a conical inner portion 6 and a cylindrical portion adapted to the external diameter of the pipe, and a packing sleeve 8, which encircles the end of the pipe, has a conical outer surface 10 co-operating with the surface 6. The surface 10 has an angle of inclination smaller than that of the portion 6, and the sleeve 8 has a plane end face 14 and an inwardly projecting, abutment shoulder 15. As shown, the ends 11, 12 of the sleeves 7, 8 where two pipes 1, 2 are connected, are forced radially inwardly to cause slight constrictions 13 in the walls of the pipes to create gas and liquid-tight seals, the end faces 14 of the sleeves being forced into abutment. The pipes may be of copper, iron, light alloy or synthetic plastic.
Patent GB-239036-A (GB)
Title: Improvements in or relating to kettles, teapots and the like
IPC: A47J27/21
Filed: 1925-04-15
Abstract: 239,036. Berkovi, L. April 15, 1925. Lids and covers.-A kettle, teapot, or other hot liquid container has a lid B arranged to slide between guides D and the undersurface of the top of the vessel so as to close the filling aperture C, when required. The knob E projects up through the aperture and acts as a stop. The guides D may taper slightly so as to wedge the lid in one position. Specification 7114/04 is referred to.
Patent GB-147578-A (GB)
Title: A process for hydrogenation and the production of catalysts
IPC: C11C3/12
Filed: 1920-07-08
Abstract: A catalyst more particularly for use in the hydrogenation of fats and oils is prepared by adding to a solution of the mixed chlorides of nickel and magnesium or aluminium an aqueous solution of an alkali silicate, for instance water-glass, so as to form a colloidal precipitate, which is then washed, dried at a temperature not exceeding 100 DEG  C., finely powdered, and heated in a current of hydrogen to 300-500 DEG  C.  In use, the catalyst is added to the oil preheated to 140-150 DEG  C.; at the commencement of hydrogenation the temperature rises to 160-180 DEG  C., and later falls to 150-160 DEG  C., at which it is maintained until the reaction is completed. With crude oils the catalyst works satisfactorily, and the hydrogenated product is white, and free from taste and smell.
Patent GB-979448-A (GB)
Title: Improvements in releasable fastenings suitable for straps and the like
Inventor: ROGERS ARTHUR LAURENCE
IPC: A44B11/25
Filed: 1962-05-22
Abstract: 979,448. Releasable fastenings. ASH & ROGERS Ltd. May 15, 1963 [May 22, 1962], No. 19568/62. Headings E2A. A releasable fastening for straps comprises a catch part 10 and a tongue part 11, the catch part including a body having an abutment and a catch 30 having a shoulder and mounted pivotally on the body for movement between an engaging position in which the shoulder is adjacent to the abutment and a releasing position in which the shoulder is spaced from the abutment, the atch and the body being formed with opposed seats 34, 24 and the tongue part 11 having a shoulder 51 arranged to be inserted into the catch part through a mouth 23 and to engage the shoulder 39 when the catch is in its engaging position, the arrangement being such that, when the parts are subjected to a separating force by pulling in opposite directions, the shoulder 51 engages the catch shoulder 39 and prevents the catch from assuming its releasing position and the opposed co-operating seats are caused to abut to resist the separating force. The catch part is provided with spring- loaded hinge pins. The end 12 of the strap is passed round a rectangular bar 20 movable along a slot 19 and through a slot in the base of the body the end being clamped along a serrated edge 22 in this slot. In a modification as shown in Fig. 4. the springs are omitted and coincident slots 74, 75 and 65, 66 provided in the tongue and body member engageable by the lugs 70.
Patent GB-718024-A (GB)
Title: Improvements in and relating to methods of brightening aluminium
IPC: C23F3/02
Filed: 1951-08-20
Abstract: The surfaces of aluminium or aluminium alloy articles are brightened by immersion in a hot aqueous solution of 1-6 ozs. of an alkali metal hydroxide and 2-6 ozs. of an alkali metal nitrate or nitrite per gallon, at a temperature of 140 DEG -170 DEG F.  After such treatment, the articles may be immersed in a 15-35 per cent. nitric acid solution, or in a solution containing 15-25 per cent. nitric acid with 0.25-0.5 per cent. hydrofluoric acid, or in a sulphuric acid anodizing solution.  Specification 901/49 (as open to inspection under Sect. 91) is referred to.
Patent GB-193780-A (GB)
Title: Improvements in folding handbags
IPC: A45C7/00
Filed: 1922-07-17
Abstract: 193,780. Feeny, C. J., (Taylor, A. W.). July 17, 1922. Bags.-A bag is adapted to be folded as indicated to reduce its capacity, the folded part carrying one element 8 of a fastening device adapted to engage w i t h a corresponding fastener 7 on a supplementary pouch 6 to hold the parts folded. A cover flap 3, adapted to be secured to the opposite side of the bag, is provided.
Patent GB-153389-A (GB)
Title: Improvements in or relating to window construction
IPC: E06B1/24
Filed: 1919-08-11
Abstract: 153,389. Clement, J. Aug. 11, 1919. Window frames; stops and buffers for lessening slamming.-Reinforced concrete window and sash frames 1, 2, 3, Fig. 2, are each constructed in one piece, and the sash frames are guided by wooden bars 4<1> - - 4<4> secured to the stiles, or two of the bars may be dispensed with, as shown in Fig. 3, and the outer sash frame provided with a metal strip 9 engaging a groove in the stile. Impact between the frames is lessened by cushions of rubber, cork, or like material. The two sash frames can be connected by cords with balance weights, but preferably they are of equal weight and connected by a cord passing over pulleys carried by the window frame.
Patent GB-571770-A (GB)
Title: Improvements in or relating to foot-pumps for inflating tyres
IPC: F04B33/00
Filed: 1943-11-26
Abstract: 571,770. Foot pumps. ABLE. E. Nov. 26,1943, No. 19753. [Class 8 (i)] In a foot-operated tyre pump; the foot receiving pad s is rotatably mounted on a pin q secured in the frame by a nut r or alternatively by providing the pad with reduced extensions fitting opepings in the frame. The pad, mounted with its axis parallel with the rocking axis, is of cruciform cross section with the free edges serrated. Reference has been directed by the Comptroller to Specification 183,995, [Class 8 (i)].
Patent GB-1248629-A (GB)
Title: Method and apparatus for frying food
IPC: A23L5/10
Filed: 1969-04-18
Abstract: 1,248,629. Frying. ROTO CORP. 18 April, 1969 [24 May, 1968], No. 19944/69. Heading A2E. [Also in Division A4] A method of pressure frying food in heated cooking oil comprises immersing the food in the oil to a depth at which the pressure is at least 7 p.s.i.g. The food is continuously conveyed downwardly through the oil to said depth and then upwardly so that its total immersion time is sufficient for complete frying of the food. The oil temperature is maintained at between 250‹ and 400‹F. The oil is continuously recirculated through a filter. The oil may be contained in a U-shaped container and the food, which may be breaded or batter-coated chicken, conveyed through the oil down one limb and up the other limb of the U-shaped container.
Patent GB-1467950-A (GB)
Title: Telescoping reflective thermal insulating structure
IPC: F16L59/06
Filed: 1975-05-13
Abstract: 1467950 Thermal insulation JOHNS-MANVILLE CORP 13 May 1975 [13 May 1974] 20002/75 Headings F2P and F2X A thermally insulating reflective metallic structure for surrounding a pipe or for covering a flat or curved surface comprises two sections each comprising an inner plate and an outer plate having a plurality of reflective sheets therebetween separated from one another by spacers, each of the sheets and the plates bearing slidably on the inner or outer surfaces of a respective corresponding sheet or plate of the other section such that sequential pairs of sheets locate between sequential pairs of sheets in the other section enabling the structure to be telescopically extensible. In a preferred embodiment of insulating pipe covering the reflective sheets 22 are separated by cone shaped projections or stand-offs 24 and the male and female sections 32 and 30 respectively are prevented from accidentally coming apart by the location of one or more radially extending bolts 50 passing through slots 64 and 66 in sheets 22 and being anchored at the inner and outer plates. The outer plate comprises two overlapping substantially semicylindrical halves and the insulation is closed off at its end by arcuate end plates. Typical materials used for the reflective sheets are steel, stainless steel, titanium or aluminium. When used to insulate a hot flat surface 4<SP>1</SP> (Fig. 1b the structure comprises reflective sheets 22 enclosed by a top plate 18 and a bottom plate 20 and secured by bolts analogously to the arrangement for pipe insulation. The structure is also enclosed by rigid sidewalls 16 and the spacing of the sheets 22 is ensured by flange 26 and strap 28 acting analogously to end plates 10 and 12 of the pipe insulating structure.
Patent GB-180936-A (GB)
Title: Improvements in ships' cabins
IPC: B63B29/02
Filed: 1921-07-26
Abstract: 180,936. Caspary, E. July 26, 1921. Cabins. - Removable partitions for forming temporary cabins comprise upper and lower longitudinally - grooved frames 4, 3 between which are inserted vertical panels 6. The abutting edges of the panels are gripped on either side by metal battens 17 with interengaging tongue and groove members 21, 20 which are accommodated in notches in the edges of the panels. The battens, which serve as supports for the interior fittings, and also the angle-bars, which grip the corner panels of the cabin, are secured to the upper frame by means of clamping-screws 19.
Patent GB-881922-A (GB)
Title: Static excitation system for an alternator
IPC: H02P9/32
Filed: 1960-06-08
Abstract: 881,922. Alternators; automatic voltagecontrol systems. SIEGLER CORPORATION. June 8, 1960 [June 12, 1959], No. 20113/60. Classes 35 and 38(4). An exciter system for an alternator is regulated to prevent excessive excitation in the event of a fault, sudden removal of the load, and on starting. Alternator 10 has a field winding: 11 excited through current transformers 17 in output lines 14, and rectifier 20. A voltageregulating shunt circuit 25 is also provided between the field winding 11 and output lines 14, controllable to allow current flow in either direction. Voltage regulator 25 comprises a " positive " group of controlled silicon rectifiers 26 and a " negative" group of controlled silicon rectifiers 30, in parallel with the " positive " group but conductive in the opposite direction. The emitter-base circuits of rectifiers 26, 30 are connected through diodes 67 to individual windings 50, 53 on individual saturable pulse transformers 44, 47 each of which has four windings. Input windings 57, 60 are connected between pairs of alternator output lines 14 so that rectifiers 26, 30 conduct 120 degrees after the begining of each positive half-cycle of the voltages at their anodes. The conduction is controlled by providing bias windings 69 on each transformer, connected to a constant voltage D.C. source through a potentiometer 72 and resistor 76. The voltage output of the generator is sensed by connections to the output lines 14 through diodes 82 and this voltage is applied across resistor 76 in opposition to the voltage from the constantvoltage source. If the generator output voltage decreases then positive bias is applied to windings 69 advancing the firing point of rectifiers 26 ahead of 120 degrees and retarding that of rectifiers 30. This increases the flow of current from output lines 14 to field winding 11. Similarly current flows in the other direction, reducing the excitation, if the output voltage increases. If the load is suddenly removed the generator field can decay rapidly by the flow of current in the shunt path. Additional negative bias windings 86 are provided, connected through a zener diode 91 across resistor 88 in the field winding circuit so that the excitation is also reduced if the excitation current exceeds a predetermined value. Excessive torque in the hydraulic drive of the alternator due to excessive excitation may also be prevented by providing a pressure-actuated relay in the system, energizing windings 86 from a D.C. source. Specification 868,400 is referred to.
Patent GB-895693-A (GB)
Title: Derivatives of amino acids
IPC: C07C237/00
Filed: 1959-06-12
Abstract: The invention comprises diamides of the formula <FORM:0895693/IV (b)/1> wherein R is a hydrogen or halogen atom, a hydroxyl group of an alkyl, alkoxy alkanyloxy or alkoxycarbonyl group of at most 5 carbon atoms and R1 and R2 are alkyl groups each containing at most 5 carbon atoms.  They may be prepared (1) by acetylation of the appropriate N-phenylglycine dialkylamide or a salt thereof; or (2) by condensation of the appropriate acetanilide with a halo-acetyl dialkylamide; or (3) by reaction of the appropriate N-phenyl-N-acetyl-glycine alkyl ester with a dialkylamine.  Examples are given.  The above diamides may be dissolved in water to form injection solutions having analgesic and antipyretic activity.
Patent GB-1082568-A (GB)
Title: Improvements relating to mouldings of carbides
IPC: C04B35/56
Filed: 1965-05-13
Abstract: Powdered carbides of one or more of the metals Ti, Zr, Hf, V, Nb, Ta, and W are mixed with an auxiliary metal (i.e. Ru, Rh, Pd, Os, Ir, Pt, Re or alloy thereof) in amount 0.1 - 3.0% by wt. of the carbide and pressure sintered to form a moulding.ALSO:Powdered carbides of one or more of the metals Ti, Zr, Hf, V, Nb, Ta and W are mixed with an auxiliary metal (i.e. Ru, Rh, Pd, Os, Ir, Pt, Re or alloy thereof) in amount 0.1-3% by weight of the carbide and pressure-sintered to form a moulding.
Patent GB-1434216-A (GB)
Title: Disc data storage apparatus
IPC: H02K33/18
Filed: 1973-04-27
Abstract: 1434216 Magnetic disc recording/playback apparatus INFORMATION STORAGE SYSTEMS Inc 27 April 1973 [10 Aug 1972] 20254/73 Heading G5R A disc pack 10 and a head carriage 27 are mounted on a rigid inner base-plate 32 fixed by vibration absorbing means to a separate, outer base-plate 34, which also supports motors 21, 12 for the pack 27 and the carriage 27 respectively. The inner base-plate 32 is secured in an opening 35 of the outer base-plate 34 by screws (36) extending through flanges (37), Fig. 2 (not shown) constructed to damp substantially those vibrations of the commonest frequencies. The base-plate 32 is stiffened by longitudinal members 40 and a spindle well 32b which maintain the relative positions of head carriage tail 29 and drive spindle 18a. The linear motor 12 is bolted to the outer base-plate 34 by flexible legs 41, with interposed rubber pads 42.
Patent GB-373831-A (GB)
Title: Improvements in and relating to electric ovens
IPC: H05B3/02
Filed: 1931-07-15
Abstract: 373,831. Electric resistance ovens. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Heinbuch, G. W. ; 71, Chelsea Avenue, Toronto, Canada.) July 15, 1931. No. 20333. Convention date, July 16, 1930. [Class 39 (iii).] One or more sheathed wire elements 6, 7 are secured to a removable sliding frame 1 provided with a slot 2 engaging studs 22, 23, and projecting ends 9 engaging the sides of a casting 24 accommodating a socket 25. The mouth of the casting has converging sides and the end of the frame converges to the slot to assist in guiding the plug terminals 10, 11 into correct alignment. The ends 9 are connected by a cross member 8. The sides of the frame are bent upwards to form a tray and are recessed to receive the elements. The fingers 14 on each side of each recess are deformed to grip the element when the element is in position. The length of the frame 1 is such that if the terminals are not in complete engagement when the door is closed the door pushes the frame fully home. Similar units may be fitted to the side walls.
Patent GB-850358-A (GB)
Title: Aircraft air-conditioning systems
IPC: B64D13/08
Filed: 1958-06-25
Abstract: 850,358. Ventilation. UNITED AIRCRAFT CORPORATION. June 25, 1958 [Aug. 23, 1957], No. 20344/58. Class 137 An aircraft air conditioning system comprises a simulator connected in the system similarly to compartments to be conditioned, the simulator comprising a body subjected to air flow similar to the compartments and having heating means to simulate the heating of the compartments resulting in a temperature of the body comparable to that of the compartments and means responsive to the temperature of the body for operating the temperature controlling means for the compartments. As shown, a space 12 heated by air from a conduit 10 has two compartments 14 and a simulator 30, the simulator and the compartments being subjected to air flow from the space 12. The simulator may comprise a block 32 having holes 34 for the passage of air and holes 36 to accommodate heating elements 38 which elements heat the block at same rate as that at which the compartments are heated. Electric resistance elements 42, sensitive to the temperature, form part of a bridge circuit in an amplifier 44 and any unbalance in the bridge is used to operate control valves 22 and 24 to supply cold or hot air respectively to the space 12.
Patent GB-203851-A (GB)
Abstract: 203,851. Streda, J., Gillespie, G. J., and Bence, E. H. July 25,1922. Bucket elevator apparatus.-In a bailer for oil &c. of the type comprising a tube A having a non-return valve at its lower end, a valve 2 is arranged at the upper end and connected to the lifting line by a rod 1, so that. when the bailer is being raised, the valve closes on a seat 8 and prevents the oil from being thrown out by the expanding gas in the oil. Ports 4 in the valve allow the gas to escape. In the form shown in Fig. 3, a valve 18 held down by an adjustable spring 21 controls the escape of the gas, and a lip 38 above the valve 2<1> intercepts oil particles carried up by the escaping gas. Ports 33 controlled by valves 32 admit air to the bailer when the pressure therein is below atmospheric. In the form shown in Fig. 5, a spring 51 bears at one end on a collar 50 on a rod 40 attached to the valve 2, and at the other end on a plate 46 connected to the valve seat. During the descent of the bailer through the liquid, the spring 51 keeps the valve 2 open, but when the ascent begins, the weight of the liquid in the bailer overcomes the spring and the valve closes.