baber/WOPTO huggingface dataset:
Patent GB-909882-A (GB)
Title: Improvements in and relating to magnetostrictive electro-mechanical transducers
Inventor: PERKINS LEONARD
IPC: H03H9/13
Filed: 1958-11-13
Abstract: 909,882. Electromechanical delay lines. COSSOR Ltd., A. C. Sept. 7, 1959 [Nov. 13, 1958], No. 36497/58. Class 40 (8). The coil of a magnetostrictive delayline transducer is enclosed in a shell of ferromagnetic material, a portion of which is permanently magnetized. The shell consists of a disc 23 which is permanently magnetized radially and a cup 24 within which lies the coil 17. Both parts may be made of suitable ferrites. They are embedded in a block 16 of epoxy resin, a central hole through the whole assembly being provided for a nickel rod or tube 4 which constitutes the delay line. Several such transducers 8-15 are mounted upon hollow guide rails 6, 7 and located at spaced points along the delay line 4. Each transducer can be shifted along the line a limited amount by means of a rotatable disc 38 mounted in the base-plate 1 and engaging a slot 41 in the block 16 through an eccentric spigot 40. A locking screw 35 is tapped into a sleeve 37 embedded in the block 16 and engages the rail 6. The head of the screw extends through a slot in the base 1. The transducer 8 constitutes the transmitter and, although similar in construction to the other transducers, is not provided with magnetic bias. The first receiving transducer 9 is intended for testing purposes and is situated as close as possible to the transmitter 8. An interposed sheet 31 of mu-metal provides shielding. Alternatively, shielding may be provided by surrounding the coil of the receiving. transducer 9 with a sheath of copper foil having a lead to earth (Fig. 6, not shown). Variations in length of the tube 4 with temperature can be compensated to a certain extent by providing spacers of e.g. polytetrafluorethylene, having suitable coefficients of expansion, on the rails 6, 7 between the transmitter 8 and the end support 2. The ends of the tube 4 are held within the end members 2, 3 by means of set screws 5. Reflections are prevented by tubes 29, 30 of polyvinyl chloride glued to the tube 4.
Patent GB-1436827-A (GB)
Title: Removal of slag from a metallurgical vessel
Inventor: HAMILIUS ALBERT
IPC: F27D3/15
Filed: 1974-08-20
Abstract: 1436827 Slag scapers CENTRE DE RECHERCHES METALLURGIQUES - CENTRUM VOOR RESEARCH IN DE METALLURGIE 20 Aug 1974 [22 Aug 1973] 36514/74 Heading F4B A slag scraper comprises two arms pivoted to move about a common axis, means for moving the scraper rectilinearly over the surface of a metal melt, and means for swinging the arms about their common pivot. Scraper blades 1, which may be supplied with scavenging fluid, are supported by arms 2 pivoted at one end of a stem 10, Fig. 3. As the scraper head is moved over the surface of the melt, the angle between the arms is varied to cover the greatest possible area and to prevent escape of slag, Fig. 2. The arms may be nearly closed together at spaced points in their travel over the melt so as to eject slag from the vessel.
Patent GB-1219563-A (GB)
Title: Improvements in or relating to noise reduction insignalling circuits
Inventor: WALLACE RICHARD BEDELL
IPC: H03G11/04
Filed: 1967-08-09
Abstract: 1,219,563. Limiters; interference suppression. SOUND SYSTEMS Ltd. 11 Nov., 1968 [9 Aug., 1967], No. 36580/67. Headings H3T and H4L. A noise suppression arrangement comprises a limiter in which the limiting level is a function of the input signal, coupled to a relatively low-Q frequency selective circuit, followed by an amplitude gate which clips signals below a first level and also above a second level, followed by a relatively high-Q frequency selective circuit; the second clipping level of the amplitude gate is a function of the input signal thereto, but may have a substantially fixed limit (Fig. 1, not shown). The limiter may be of the type described in Specification 1,219,562, in which diodes 4, 5, Fig. 2, are connected back-to-back in the signal path between input terminal 1 and output terminal 7, a signalderived bias being applied to the common terminal A by means of amplifier 10, voltagedoubling rectifiers 11, 12 and smoothing circuit 13, 14, 15. The amplitude gate is a modification of this circuit, in which amplifier 10 is replaced by two amplifiers 17, 18, diodes D1, D2 being connected in the series path between the amplifiers to block the passage of signals below a first level; diodes D3, D4 are connected in shunt with the signal path and shortcircuit it to earth for signals above a second level, the two levels being obtained by suitable choice of diodes.
Patent GB-1214174-A (GB)
Title: Improvements in electric power tools
IPC: H02K7/14
Filed: 1968-08-01
Abstract: 1,214,174. Centrifugal switches. GENERAL ELECTRIC CO. 1 Aug., 1968 [25 April, 1968], No. 36663/68. Heading H1N. In an electric food mixer a speed control shaft 44 carries two cams 54, 58 the first of which controls the spring force on a governor sytem to vary the speed and the other operates a main on/off switch 70 to interrupt the motor supply at the minimum speed setting of the shaft. The cam 58 operates switch 70 through a sliding follower 68. Cam 54 acts on a resilient blade follower 42 coupled by a tension spring 40 to a pivotally mounted blade contact 36 cooperating with a fixed contact 38. The governor has a fly-weight mechanism (32) (Fig. 2, not shown) which moves a cap 34 axially to move contact 36 against the force of spring 40. The spring 40 is by-passed by a hook portion 62 when the shaft 44 is moved to the maximum speed position so that follower 42 and blade 36 are rigidly linked and the contacts permanently closed. The hook portion 62 may be replaced by a loose link (Fig. 5, not shown). Concentric with the speed setting shaft 44 is a beater ejector device comprising a sliding rod operated by a push button and carrying a double armed actuator acting on the ends of beater shafts 26. The device rotates with shaft 44 so that the beaters can only be released with the motor stopped.
Patent GB-619482-A (GB)
Title: Improvements in or relating to baths
IPC: A47K3/04
Filed: 1946-12-12
Abstract: 619,482. Baths. GRUEN, H. Dec. 12, 1946, No. 36747. Convention date, Feb. 26, 1944. [Class 26] A bath fixture adapted to be built into a wall 10 comprises a bath 1 having an integral upstanding flange F having a rear face 20 and an upper edge portion 19, provided with longitudinally-extending grooves 12 and 13 to receive bonding and sealing material, e.g. cement, 18. Adjacent to the grooves 12 and 13 are ribs 14, 15 and 16, the groove 12 extending over the edges of the front 22 of the bath 1, that can have projections in the bottom, which front 22 may comprise an apron 25 with a space 26, a space 30 being at the back.
Patent GB-932690-A (GB)
Title: Production of coated fibres or beads and resinous coating composition
IPC: C03C25/465
Filed: 1959-10-30
Abstract: Vitreous beads are provided with a hard resistant coating by applying thereto an aqueous dispersion of a phenol-aldehyde resole in which is suspended barium sulphate particles of which the particle size is such that the barium sulphate forms a solution in water-and heating the coated beads to convert the resole to a hardened infusible state. An extender, e.g. pinewood pitch extract, is usually included in the coating composition. According to Example 2, soda lime glass beads are coated with a resole dispersion containing barium sulphate, the latter having been precipitated by reacting ammonium sulphate or sulphuric acid with the barium hydroxide catalyst used in the preparation of the resole.ALSO:A coating composition for providing vitreous fibres or beads with a hard resistant coating comprises an aqueous dispersion of a phenolaldehyde resole and 1-10% by weight of barium sulphate particles of which the particle size is such that the barium sulphate forms a sol. in water, i.e. average diameter 1 millimicron to 1 micron.  An extender, e.g. pinewood pitch extract, is usually included in the composition.  The barium sulphate may be formed by precipitating a soluble barium compound used as catalyst in the preparation of the resole.  In one embodiment this precipitation is effected by adding a mixture of sulphuric and benzene sulphonic acids to the dispersion, the benzene sulphonic acid forming a water soluble salt which decomposes to barium sulphate during the curing of the coating. According to Example 1, an aqueous dispersion of a phenolformaldehyde resole is prepared using barium hydroxide as catalyst and, after addition of sulphuric acid to precipitate the barium sulphate, the following ingredients are added:-pinewood pitch extract, ammonium hydroxide, mineral oil emulsified with stearic acid and ammonium carbonate, and ammonium sulphate. Example 2 describes the preparation of a shell mould from soda lime glass beads coated with a similar composition.ALSO:Vitreous fibres are provided with a hard resistant coating by applying thereto an aqueous dispersion of a phenol-aldehyde resole in which is suspended barium sulphate particles of which the particle size is such that the barium sulphate forms a sol. in water-and heating the coated fibres to convert the resole to a hardened infusible state.  An extender, e.g. pinewood pitch extract, is usually included in the coating composition. According to Example 1, glass fibres are sprayed with an aqueous dispersion of a resole containing in addition to barium sulphate, pinewood pitch extract, ammonium hydroxide, mineral oil emulsified with stearic acid and ammonium carbonate, and ammonium sulphate.
Patent GB-368817-A (GB)
Title: Improvements in and relating to steam turbines
IPC: F01D19/00
Filed: 1930-12-08
Abstract: 368,817. Steam turbines; engine stop-gear. AKT.-GES. BROWN, BOVERI, ET CIE, Baden, Switzerland. Dec. 8, 1930, No. 37021. Convention date, Dec. 30, 1929. [Classes 110 (iii) and 122 (iv).]. The main stop valve l and the regulating valves q of a steam turbine a are actuated by oil pressure in pipe lines g, n, connected to a manually operated starting valve h. This valve may be set by a hand-wheel h<1> to drain the pipe lines, in which case the valves l, q are closed. On starting, the operation of the starting valve h opens the admission valves in the following sequence: (1) the byepass valve z is opened to balance the steam pressure on the stop valve l; (2) the stop valve is opened by the piston y; (3) the regulating valves q are opened by oil pressure in the pipe n. When the turbine attains speed a centrifugal governor b controls the opening in succession of the regulating valves q by controlling the opening o of an oil leak-away in the pressure line n. A stop-gear is provided. When the starter h is actuated a spring x arranged between two sleeves is stressed. At excess speed a safety governor v knocks up a latch w and shifts the parts of the valve h so that the pipes g, n are drained. A knob h<11> enables the stopgear to be operated manually.
Patent GB-1275152-A (GB)
Title: Acyloxyalkylmercapto compounds and process for their manufacture
Inventor: HEUSLER K
IPC: C07D205/095
Filed: 1969-07-23
Abstract: 1275152 Azetidinones CIBA-GEIGY AG 23 July 1969 [23 July 1968 11 Dec 1968] 37100/69 Heading C2C Novel compounds I (including optical isomers thereof) wherein Ac signifies acyl, R 1  is an organic radical and R 2  is H or CHO are obtained by treating II (Ac 0  is Ac in which any free functional group present is protected) with an oxidizing agent furnishing -O-CO.R 1 , e.g. utilizing lead tetra-acetate or -benzoate, to give I in which Ac is Ac o  and R 2  is CHO, or by similarly treating V or an 0-ester thereof to afford I in which Ac is Ac 0  and R 2  is H, and if desired, in a resulting compound with an acyl radical containing protected functional groups, these groups are liberated, and/or, if desired, a mixture of isomers is resolved. Pharmaceutical preparations showing, in particular, activity against gram-positive bacteria, e.g. Staphylococcus aureus, contain I as active ingredient; administration is, e.g. enterally or parenterally.
Patent GB-1057424-A (GB)
Title: New antibiotic and process for its manufacture
IPC: C12P1/06
Filed: 1964-09-11
Abstract: Antibiotic 11,837 R.P., effective against gram positive micro-organisms, is produced by the aerobic cultivation of streptomyces viridans 9466 (N.R.R.L. 3087) or a 11,837 R.P.-producing mutant thereof in an aqueous nutrient medium containing assimilable sources of C, N and inorganic substances and separating the 11,837 R.P. formed during cultivation.  Culture may be effected under submerged aerobic conditions commencing at pH 6.0-7.8 and 23-35 DEG C. at an aeration rate of 0.2 to 2 litre of air per litre of medium per min. for 4-7 days. 11,837 R.P. is separated from the culture medium by adjusting the pH below 5, filtering and extracting the filter cake with water containing a lower alcohol at pH 3-7 or with a mixture of lower alcohols or, after the pH of the culture medium has been adjusted to 7, the antibiotic is absorbed on a strongly basic anion exchange resin and eluted with an aqueous alcoholic solution containing an electrolyte. The crude antibiotic may be purified by chromatography on a strongly basic anion exchange resin, followed by dialysis of an aqueous solution thereof. Antibiotic 11,837R.P., a white amorphous powder which decomposes without melting above 160 DEG C., is soluble in water, methanol, pyridine, acetic acid and dimethylformamide; sparingly soluble or insoluble in ethanol, acetone, chloroform and n-hexane; it has a mol. wt. above 5,000 and is an acid of pKa 4.1 having a neutralization equivalent of about 600; an approximate elementary analysis C46.9%, H7.9%, O 39.2%, N 3.9% and P 2.25% which, in its I.R. spectre in kBr, shows the following maxima:  3360, 2930, 1720, 1630, 1564, 1550, 1430, 1400, 1380, 1330, 1222, 1164, 1125, 1100, 1068, 1040, 968, 950, 890, 860 and 800.  11,837 R.P. forms salts (e.g. alkali metal salts) with bases; the Na salt has an optical rotation of <FORM:1057424/C2/1> = +6 DEG \sB1 DEG  (C=0.6 water), an elementary analysis C 45.0%, H 7.4%, O 37.6%, N 3.72%, P 2.16% and Na 4.15%, U.V. absorption at 220 m\sB <FORM:1057424/C2/2> measured on a 0.003% aqueous solution and an I.R. spectra in kBr with the following maxima:  3400, 2910, 1730, 1547, 1525, 1430, 1378, 1330, 1238, 1160, 1100, 1062, 1042, 1030 972, 947, 890 and 860.ALSO:Pharmaceutical compositions which are particularly effective against Gram positive micro-organisms comprise antibiotic 11, 387 R.P. or a non-toxic salt thereof, e.g. Na, in conjunction with a compatible pharmaceutically acceptable carrier which may itself be physiologically active.  Compositions suitable for parenteral administration include sterile aqueous or non-aqueous solutions, suspensions or emulsions.
Patent GB-1085686-A (GB)
Title: Hatching and breeding of fish
IPC: A01K61/17
Filed: 1966-08-22
Abstract: A method of hatching and breeding fish comprises keeping spawned roe in flowing water having a salinity of eights parts per thousand during the hatching period, reducing the salinity of the water to four parts per thousand when hatching takes place and thereafter gradually increasing the salinity of the water to adapt the fry to sea water.
Patent GB-342454-A (GB)
Title: An improved method of conveying materials of all kinds
IPC: E01B25/14
Filed: 1929-12-07
Abstract: 342,454. Rope and elevated railways ; permanent way. SCHLÍSSER, G., 263, An der Wuhlheide, C÷penick, Berlin. Dec. 7, 1929, No. 37606. Convention date, Dec. 7, 1928. [Class 104 (ii).] A portable railway for conveying railway and building material consists of rail sections B mounted on the upper part of frames A .. A<4> supported on standards D .. D<2>, and secured together. The wagons are moved by chains O guided over wheels C and driven by a motor G carried by the framing. The framing may also carry an endless-chain brake engaged by the wagons.
Patent GB-1105003-A (GB)
Title: Improvements in or relating to sorting apparatus
Inventor: HOFFMAN INGO
IPC: B07B13/00
Filed: 1966-08-23
Abstract: 1,105,003. Sorting apparatus. WEIMARWERK VEB. Aug. 23, 1966, No. 37707/66. Headings G1A and G1N. Potatoes are sorted from earth and stones by passing the mixture through a capacitor which forms part of an oscillator circuit and at the same time past a photo-electric system located adjacent the capacitor, the frequency variations in the oscillator output due to the passage of different parts of the mixture through the capacitor and the variations in intensity of radiation reflected by different parts of the mixture, being detected to produce signals which are fed through an AND- gate to actuate a separating mechanism. The photo-electric system comprises a lamp 7 which may be associated with filters to produce light in spectral ranges corresponding to daylight and/or artificial light. The detector 8 receives light reflected from the parts of the mixture. If this is wet, the potatoes are more easily differentiated from the darker coloured earth. The detector output is amplified and applied to the AND-gate. The capacitor 1 through which the mixture is conveyed is V-shaped. The different parts of the mixture - potatoes, stones &c. - have different dielectric constants and produce variations in the frequency of the oscillator output and these variations are modulated with a constant frequency signal from a similar oscillator (3, Fig. 2, not shown) in a mixer (4) and the difference frequency fed to a frequency selective receiver circuit (13) comprising a high pass filter circuit (5) and amplifier (6), difference frequencies above the cut-off of circuit (5) passing to the AND-gate (10), indicating the presence of a potato. Alternatively, the variations are measured directly by a frequency selective receiver (14, Fig. 3, not shown) comprising a low-pass filter (12) and an amplifier (6) similarly feeding an AND-gate. The capacitative apparatus is more sensitive to the different materials if the mixture is dry since with increasing moistures of the potatoes and earth the dielectric constants differ less. The AND-gate is connected to a separating mechanism which is actuated if an output is obtained from the AND-gate indicating that a potato has been detected and is to be sorted out.
Patent GB-798499-A (GB)
Title: Improvements in or relating to the compression of stranded cable
IPC: F16G11/02
Filed: 1956-12-11
Abstract: 798,499. Rope end attachments. DU PONT DE NEMOURS & CO., E. I. Dec. 11, 1956 [Feb. 24, 1956], No. 37736/56. Class 109 [Also in Group XXXVI] A sleeve 2 is compressed on to a stranded cable 1 by detonating an explosive mixture provided on the outside of the sleeve. The sleeve and wire may then be severed to provide two end pieces, (Fig. 4), and the end pieces may be threaded (Fig. 6) or the compressed end of the wire tapped (Fig. 5, not shown). The embodiment of Fig. 7 shows the sleeve fastened to a bus bar..
Patent GB-1194004-A (GB)
Title: Nestable, Building Elements
IPC: E03F5/02
Filed: 1967-08-16
Abstract: 1,194,004. Wells; intercepting tanks. STENBERG-FLYGT A.B. 16 Aug., 1967 [23 Aug., 1966], No. 37749/67. Headings E1F and E1C. A well or shaft, e.g. a drainage slump, is formed of stacked truncated conical elements 3, 4. Adjacent elements may be the same size and inverted relative to one another or one may be smaller (e.g. 3) than the other to form a larger truncated cone. The elements rest for ease of transport, and as described, are formed of glass-fibre reinforced plastics; and are bonded to each other and to cover fillets 5', 6. The sump is buried and a concrete base cast within it. The sump may be divided into an upper part for control gear and a lower part containing the pumps and effluent by an intermediate floor immediately above the fillet 6 (Fig. 5, not shown).
Patent GB-1093787-A (GB)
Title: Yttria aquasols
IPC: C01F17/218
Filed: 1965-09-03
Abstract: Yttria aquasols are prepared by mixing with water an yttria precipitate which is substantially free from electrolytes and a strong mineral acid in an amount such that the mixture has a pH of 6.5 to 7.5 and heating the mixture to 80-150 DEG  C. until an amorphous yttria aquasol is obtained.  The acid is preferably hydrochloric acid and the heating may be continued for 0.25 to 6 hours.  The amorphous uttria aquasol may be further heated at 30 DEG to 100 DEG  C. to form a crystalline yttria aquasol.  The yttria precipitate is preferably prepared by adding an alkaline precipitating agent (ammonia, ammonium hydroxide, alkali metal hydroxides and amines having a kb greater than 1 x 10-8 e.g. methylamine, ethylamine and hydrazine are specified) to an aqueous solution of an yttrium salt and separating and washing the yttria precipitate. The invention also comprises aquasols containing up to 20 weight per cent of particles of amorphous yttria, the particles having a size from 50 to 350 mm  in the longest dimension, aquasols containing up to 20 weight per cent of crystalline yttria particles, the particles having a size of from 20 to 500 mm  in the longest dimension, amorphous yttria particles having a size of from 50 to 350 mm  in the longest dimension and crystalline yttria having a size of from 20 to 500 mm  in the longest dimension.
Patent GB-343966-A (GB)
Title: Improvements in or relating to cinematographic apparatus, or combined cinematographic and phonographic apparatus
IPC: G11B19/28
Filed: 1929-09-17
Abstract: 343,966. Kinematograph apparatus. CLIFFORD, E., 27, Worcester Street, and JOHNSON, R. B., Mulgrave House, London Road, both in Gloucester. Sept. 17, 1929, No. 37931/30. Divided on 340,528, [Group XXXVIII]. [Class 97 (i).] A projector, with or without an associated sound reproducing apparatus, drives a registering sheet at a speed less than that of the film, and the registering sheet is provided with elements giving indications, or causing the performance of operations, at required times, relating to the exhibition of the pictures; the apparatus may indicate or control the completion of the film run, the stoppage of the apparatus, change-over to another projector, or the movements of curtains at the projection screen. Fig. 1 shows apparatus as described in Specification 340,528 comprising a fader c controlled by fader sheets k, k<1> each associated with a separate projector, the fader sheets being also provided with elements for controlling change-over of the projectors. Each. of the sheets k, k<1> may be secured to a rotary drum, may run off one drum on to another, may be in endless form carried by two drums, or may be a disc rotated about its centre, and may be driven through reduction gearing by one of the projectors. The elements may consist of perforations which pass between spring contacts and contact bars 40 .. 40<c> to permit their engagement. Engagement between contact 41 and contact bar 40, permitted to occur by a perforation in the sheet k when the film run in one projector is nearing completion, completes the circuit of a solenoid 49<a> operating to close the switch 50<a> of the motor circuit of the second projector. A second perforation in the sheet k then permits contact 42 to engage the bar 40 and simultaneously complete circuits for solenoids 44<a>, 47a which respectively close the cut-off shutters 44, 45 of the projector in use, and open the corresponding shutters 46, 47 of the other projector. A third perforation, contact 43, and bar 40, then completes the circuit of a solenoid 48 to open the switch 50 in the motor circuit of the first projector. The parts enumerated are duplicated and controlled by the sheet k<1> to operate when change-over from the second projector to the first is required. The engagement of contacts 63, 64 and a contact bar 40b may also be controlled by the sheet k to cause operation of mechanism for opening and closing screen curtains etc.; similar parts may also be controlled by the sheet k<1>. The sheets k, k<1> may be employed independently of fader sheets, and may bear separate sets of elements for use with more than one film length; the elements may consist of dots, lines, &c., when they are to serve only as indicators. Fig. 3 shows a modification of element comprising a projection M<x> on the sheet K which, on passing over a roller K<x>, presses a movable contact 41<x> into engagement with a fixed contact bar 40<x>.