baber/WOPTO huggingface dataset:
Patent GB-1475398-A (GB)
Title: Ultrasonic pulse echo apparatus and the investigation of moving objects
IPC: A61B8/08
Filed: 1974-05-29
Abstract: 1475398 Ultrasonic pulse-echo apparatus SIEMENS AG 29 May 1974 [30 May 1973] 23878/74 Heading G1G Ultrasonic pulse echo apparatus for investigating the movement of, e.g. the human larynx comprises two ultrasonic transducers which can be moved in relation to one another, electrical switching means connected to a first of the transducers to cause it to operate alternately as a transmitter or receiver a first indicating device operable to indicate echo pulses received by the first transducer, the second transducer being operable to receive ultrasonic energy transmitted by the first transducer and a second indicating device operable to indicate the intensity of the energy received by the second transducer. The movement of vocal chords 2 are displayed after an initial setting up procedure, whereby the most favourable orientation of transmitted signals is determined by transmitting ultrasonic signals, produced by generator 9 through switch 8 in position a, from transducer 3. When the oscillating vocal chords 2 are instantaneously closed these signals are passed through the neck to be received by transducer 4 which is connected by switch 12 in position c to receiver 13. Receiver 13 drives the vertical sweep on oscilloscope tube 24 to display the transmitted signals as a sawtooth waveform. The displayed signal is maximized by adjustment of the transducers, by displacement of the bow arms 5 and 6 on the U-shaped support, and this position is locked by clamp screw 7. The apparatus is then switched over to measure the vocal chord movement. Transducer 3 operates in a transmit/receive mode using switch 8 as a TR switch. Similarly, switch 12, being switched between positions d and e operates transducer 4 in a transmit/receive mode, the received signal being delayed at 14, so that the oscilloscope 18 displays the echo pulse signals from receiver 11 so that echoes from transducers 3 and 4, i.e. from the right side and the left side of the vocal chords respectively are displayed on different traces on CRT screen 18, switches 8 and 12 being automatically commutated between positions a and b and d and e in this mode, a manual selector being provided to select the setting up procedure.
Patent GB-536870-A (GB)
Title: Improvements in or relating to pressure reducing means for fluids
IPC: G05D16/06
Filed: 1939-08-18
Abstract: 536,870. Reducing valves. CATTANEO, G., and CATTANEO, G. Aug. 18, 1939, No. 23912. Convention date, Aug. 18, 1938. [Class 135] A pressure reducing valve 2 is loaded by the pressure of fluid in a chamber 19 acting on a bellows 18 connected to a lever 7 and the degree of loading is controlled by varying the volume of the chamber 19 such as by a cam 25 acting on the bellows 21. The lever 7 bears near its fulcrum 8 on the valve 2, the line pressure from the pipe 1 also acting on the lever through the bellows 11. The bellows 11 may be replaced by a piston above which is an oily liquid, or the lower oil-containing part of the chamber 19 is connected to a separate cylinder containing the regulating piston.
Patent GB-802675-A (GB)
Title: Process for the preparation of hypochlorite-treated hydrocarbon oils having reduced corrosivity
IPC: C10G19/04
Filed: 1956-08-08
Abstract: Hydrocarbon oil is treated first with hypochlorite and then with an alkali metal hydroxide solution containing at least 5 g./litre of one or more solutizers for the corrosive compounds formed during the hypochlorite treatment.  The hypochlorite may be sodium or calcium hypochlorite and may be aqueous or aqueous alkali solutions; the solution may contain, for example, 0.1-5 per cent NaOCl, 1-30 per cent NaOH and 1-25 NaCl.  Solutizers referred to are phenol and alkyl phenols, e.g. cresols, watersoluble alcohols, e.g. ethanol, and water-soluble salts of fatty acids, e.g. isobutyric acid.  A mercaptide may also be added to the alkali metal hydroxide solution, or alternatively a hydrocarbon oil containing mercaptans, which may be an oil of the same origin as the hypochlorite treated oil.  The alkali solution may contain 10-30 per cent of alkali metal hydroxide, e.g. sodium or potassium hydroxide.  The effect of any corrosive compounds left in the oil may be counteracted by adding a small quantity, e.g. 0.001 to 0.1 per cent, of a substituted or unsubstituted aliphatic or cycloaliphatic monocarboxylic acid having 12 or more carbon atoms, e.g. oleic acid.  Hydrocarbon oils referred to are gas oil, kerosine and gasoline; straight run, cracked or reformed hydrocarbon fractions may be used. Specifications 761,724 and 802,674 are referred to.
Patent GB-884684-A (GB)
Title: Process for improving the corrosion resistance of light metals and light metal alloys
IPC: C25D11/24
Filed: 1959-07-15
Abstract: Chemical coatings on light metals are sealed by immersion in a very dilute aqueos solution containing no sulphur, of at least one compound of at least one of the elements-arsenic, antimony, selenium, tellurium, or bismuth, rinsing with water and rinsing the workpieces with a solution of a substance having a general formula:-CnH2n + 1SO2 NHRCOOX where n is 8-18, R is an alkyl radical containing 1-5 carbon atoms and X is a cation.  The sealing solution which may be a solution of arsenic acid, antimonic acid, selenic acid, telluric acid, arsenious acid, antimonious acid, tellurous acid, or preferably selenious acid, or a mixture thereof, contains less than 2% oxide and has a pH of less than 9, preferably 5-7, controlled by additions of salts of strong or moderately strong acids such as sodium chloride, sodium phosphates, potassium fluoride, sodium sulphate, or mixtures thereof.  It is maintained at 20-70 DEG C. and articles are dipped for 3-10 minutes.  The rinsing solution may contain small quantities of hexavalent chromium in the form of alkali chromates, alkali bichromates, or chromic acid, and it may contain an aqueous or alcoholic solution of an organic complex compound such as cyclohexylamine.  Its pH is maintained above 7, preferably 7,5-8,5 and its temperature at 70 to 90 DEG C.  The coating may be further sealed by the application of a coating lacquer, varnish, fat, oil, or alkali silicate.  The coloration produced by the sealing solution according the invention may be used for decorative purposes or for colourimetric control of the operation.
Patent GB-1525795-A (GB)
Title: Coated glass
IPC: C03C17/23
Filed: 1976-06-14
Abstract: 1525795 Oxide-coated glass SAINT-GOBAIN INDUSTRIES 14 June 1976 [17 June 1975] 24539/76 Heading C1M A metal oxide layer is formed on a heated glass surface by spraying onto the surface a powder comprising a coprecipitate of chromium acetyl acetonate and at least one other metal acetyl acetonate. The other metal may be Co, Fe, Zn, Mn, In or Al. The coprecipitate preferably contains at least 50% by weight of chromium acetyl acetonate, and is preferably of particle size less than 300 Á. The powder may be sprayed for 3-5 seconds onto glass at 670 C.
Patent GB-930471-A (GB)
Title: Improvements in and relating to a process for dyeing polyacrylic fibres
Inventor: SUREAU ROBERT FREDERIC MICHEL
IPC: D06P3/76
Filed: 1959-07-17
Abstract: Polyacrylic fibres are dyed with a water-soluble salt formed from a dye of formula <FORM:0930471/IV(a)/1> where X is H or HG, Y is H or AIK and Z is the residue of a monocyclic primary amine of the aromatic or heterocyclic series which is free from water-solubilising substituents, by treating the dye with a mineral or strong organic acid, or with an alkyl halide or sulphate in an organic solvent.  The dyeing may be effected at the boil in the presence of a small quantity, e.g. 1 to 2 per cent of the weight of fibre, of mineral or strong organic acid.  Cotton, silk and leather may also be dyed. Orange to violet shades are obtained.  Z may contain substituents such as halogen atoms or nitro, acylamino or trifluoromethyl groups, or preferably alkyl, alkoxy or mono - or di - alkylamino groups. Chloracetic acids are indicated as strong organic acids.  Examples are provided of the preparation of the dyes and their use in dyeing polyacrylic fibres, representative of the diazo components used being p-anisidine, o-chlor-, m-trifluoromethyl-, p-nitro-, p-dimethylamino- and 2,4-dimethyl-anilines, m-toluidine, o-phenetidine, 3-nitro-2-aminotoluene, 4-nitro-2-aminoanisole and 2-anisole and 2-amino-thiazole.
Patent GB-626840-A (GB)
Title: Improvements in wheel rims for tractors and like vehicles
IPC: B60B23/12
Filed: 1947-09-06
Abstract: 626,840. Wheel-gauge changing. DUNLOP RUBBER CO., Ltd., CHATTERTON, P. B., and DARLING, J. H. Sept. 6, 1947, No. 24580. [Class 108 (ii)] [Also in Group XXXIV] To vary the tracking width of a vehicle, detachable rims 1 are fitted with axially-spaced sets of lugs 6, 7 for selective attachment by bolts 4 to the wheel 2. The lugs are off-set from the medium plane of the wheel, so that each rim may be assembled in any of the four positions 12a, 12b, 12c, 12d, shown in Fig. 1. The base portions of the lugs have centering-steps 11; and, the rim-seats 3 of the wheel are spaced by gaps 5 to clear the lugs in adjusting the assembly.
Patent GB-661838-A (GB)
Title: Improvements in or relating to carburettors for internal combustion engines
IPC: F02M1/02
Filed: 1949-09-26
Abstract: 661,838. Spray carburetters. FORD MOTOR CO., Ltd. Sept. 26, 1949 [Jan. 19, 1949], No. 24624/49. Class 7(iii) A linkage 21, 29 is designed, as the choke valve operating lever 23 moves clockwise from the normal position towards fully choked position, initially to open the throttle valve 34 to fast idle position without moving the choke valve and then to close the choke valve with the throttle valve remaining in the fast idle position. The choke valve 33, spring biassed towards closing, is normally held open by. an arm 20 of the lever 21 freely pivoted at 25 and connected by a lost motion connection 26, 27, to the freely pivoted lever 23 which carries a cam 32 operating with a follower 31 on a lever 29 pivoted at 30 and carrying a stop 16 limiting the closing position of the throttle valve. During movement of lever 23 clockwise from the normal position, Fig. 1, by the amount permitted by the lost motion 26, 27, the-lever 21, is held stationary by a friction device to keep the valve 33 open and the cam 32 rotates lever 29 to cause the stop 16 to move the valve 34 to fast idle position, Fig. 4. Further movement of lever 23 rotates the lever 21 to allow the choke valve 33 to close, the valve 34 remaining unaffected.
Patent GB-883318-A (GB)
Title: Improvements in or relating to lifting and lowering gear
Inventor: HACK LAURENCE
IPC: B66C1/18
Filed: 1958-07-31
Abstract: 883,318. Flat braided ropes. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. June 11, 1959 [July 31, 1958], No. 24641/58. Class 74 (1). [Also in Group XXX] The flat braided rope shown is formed as a multiplicity of braided strands of which each strand consists of a plurality of parallel stainless-steel wires.
Patent GB-1104463-A (GB)
Title: A method and apparatus for pre-expanding foamable granular synthetic resins
IPC: B29C44/44
Filed: 1965-06-10
Abstract: Granular synthetic resins are pre-expanded in an apparatus wherein, by means of an endless conveyer, these resins are conducted through a closed container provided with a gas-tight entry and outlet lock and supplied with a gaseous or liquid heating medium.  The grains of resin are conducted continuously through consecutive zones disposed within the closed container, the zones differing in respect of temperature, pressure and liquid or gaseous additives.  The preferred synthetic resin is polystyrene.  The conveyer may be conducted through a channel of which at least a part has perforated walls and may be fitted with flights shaped to conform with the cross-section of the channel thus forming a gas-tight sea.  Flexible wiper blades may be fitted to the ends of the flights.  Preferred conveyers are air-pervious, preferably perforated belts and two parallel drains.
Patent GB-425276-A (GB)
Title: Improvements in and relating to disc clutches
IPC: F16D13/71
Filed: 1934-08-27
Abstract: 425,276. Friction clutches. FICHTEL & SACHS AKT.-GES., Schweinfurt, Germany. Aug. 27, 1934, No. 24678. Convention date, Aug. 26, 1933. [Class 80 (ii)] The radial withdrawal levers 8 of a friction clutch, wherein a driven plate 3 is normally pressed against a driving flywheel 1 by a presser plate 4 acted on by springs 6, are stamped from sheet metal, have central reinforcing ribs, have guide slots at each end engaged respectively by lugs 17 on a pedalactuated operating ring 7 and by pins 16 secured to the flywheel cover-plate 5, and are fulcrumed in recesses 21 in the bent - out reinforcing edge 5<a> of the plate 5. The levers have transversely depressed parts 14 engaging rounded projections 15<a> on nuts 15 adjustable on bolts 13 carried by the plate 4. The latter is caused to rotate with the flywheel by pins 5b which are secured to the cover plate 5 and engage recesses 4<a> in the plate 4. Anti-rattle springs 19 are connected between the plate 4 and the ring 7.
Patent GB-389395-A (GB)
Title: Improvements in actions for typewriting machines
IPC: B41J7/02
Filed: 1932-09-05
Abstract: 389,395. Typewriters. SMITH & CORONA TYPEWRITERS, Inc., L. C., 51, Madison Avenue, Manhattan, New York, U.S.A. Sept. 5, 1932, No. 24727. Convention date, Jan. 13. [Class 100 (iv).] Type - lever actions. - In an action suitable for a portable machine, the keys are mounted on toggles pivoted at the front of the machine and connected to upstanding sub-levers which are pivoted at the bottom and are connected by links to the heels of the type-levers. In the action shown in the Figure, type-levers 10 pivoted on an inclined segment 12 are connected by links 20 to sub-levers 21 pivoted on a horizontal segment 23 and connected by links 42 to key-bars 26 mounted on links 29, 30. The links 20 are of uniform length and are normally parallel to the type-levers, the types being adjacent to the top bank of keys 16 and the tops of the sub-levers. The links 42 are of uniform length, and the pivotal connections 41, 43 to the sub-levers are arranged in two straight rows, the pivots 43 being carried by adjustable lugs 39. The links 29 and also the links 30 are of uniform length and are mounted on straight rods 31, 32. The key-stems are formed with arms 35 passing through a comb 33 and normally engaging a stop-cushion 36, engagement being maintained by returning- springs 44 connected to the links 42. The keys of the top bank are secured to extensions 38 of the associated key-stems, the keys of the other banks being secured to the arms 35. The links 42 and the associated key-stems and links 29, 30 form toggles having the pivots 43 slightly above the lines joining the pivots 41, 32, the arrangement preventing the type-levers from rebounding from a rest 17. The toggles are straightened during short initial depression of the keys, and on further depression the toggles are broken and the type-levers receive an accelerated impression-movement. Letter-spacing mechanism.-A universal bar 50, secured to rocking arms 51, 52, is arranged in the path of lugs 62 on the sub-levers 21, the bail being slightly bowed to compensate for the different throws of the sub-levers. The arm 51 may be connected by a link 47 to an arm 48 on a rock-shaft 49 provided with a returning-spring 59, which normally holds a finger 60 on the bail in contact with a stop 61.
Patent GB-419558-A (GB)
Title: Improvements in or relating to folding mechanism more particularly for printing machines
IPC: B65H45/16
Filed: 1933-09-06
Abstract: 419,558. Paper-folding machines. HOE & CO., Ltd., R., 109, Borough Road, London.- (Hoe & Co., Inc., R. ; 138th Street, New York, U.S.A.) Sept. 6, 1933, No. 24739. [Class 100 (i).] In a rotary folding-apparatus more particularly for high-speed printing - machines, means adjustable circumferentially of the cylinder are provided for holding a sheet on the folding-cylinder 1 after it has been released by the sheet-taking devices 8 and prior to the gripping of the sheet by the folding-rollers 48, 49. The means comprise three rollers 10, 11, 12 on a spindle 13 which is driven by gearing 59, 60 from the shaft 3 of the cylinder 1 and has bearings 29, 35, 42 with extensions 30, 36, 43 adjustable in blocks 31, 37, 44 fixed to a cross-bar 33. Two side arms 16, 17 pivoted on the shaft 3 of the folding-cylinders 1 carry the bar 33 and also a bar 41 to which an extension 39 of the block 37 is rigidly connected. A shaft 20 is coupled by bevel-gearing 24 to two threaded spindles 26 engaging nuts 28 on the extremities of the arms 16, 17, so that rotation of the shaft 20 by a handwheel 21 causes the rollers 10-12 to be adjusted circumferentially of the cylinder and such adjustment can be effected during the normal running of the machine. The circumference of each roller 10, 11, 12 has a high and a low part which respectively grips and releases the sheet. Alternatively, the cylinder 1 may be recessed at the point where the sheets are to be released. The blocks 31, 37, 44 may carry spring-mountings 361 for the extensions 30, 36, 43.
Patent GB-424871-A (GB)
Title: Improvements relating to the coating of surfaces, and in the manufacture of coated or compound materials
IPC: D21H19/14
Filed: 1934-08-28
Abstract: 424,871. Ornamenting. SMITH, G., 97, Lea Bridge Road, Leyton, London. Aug. 28, 1934, Nos. 24760 and 25978. Drawings to Specification. [Class 93] [See also Group VIII] A transparent or translucent film or foil is united to a rigid or flexible backing sheet by means of continuous fine lines of adhesive, which may be coloured. Foils of cellulose, viscose, &c. may be united to paper, cardboard, wood, metal, e.g. tin, leather, sheet rubber, calico, linen, &c., by adhesive applied in straight, wavy, or zig-zag parallel lines, a network of intersecting lines, or lines forming a conventional lace-like or reticular pattern, wording, &c. The base material may be printed before applying the adhesive.
Patent GB-510119-A (GB)
Title: An improved device for damping humming noises on electricity meters
IPC: G01R11/12
Filed: 1938-08-23
Abstract: 510,119. Supply meters ; flexible shafts. LANDIS & GYR AKT.-GES. Aug. 23, 1938, No. 24809. Convention date, Nov. 15, 1937. [Class 37] [Also in Group XXIV] In order to damp the humming noise in electricity meters, the rotor spindle is made elastic in a radial direction, and is in two parts connected by a spring member, the part carrying the driving worm being rigidly connected to the meter rotor. In Fig. 1, the rotor 1 is provided with a bell-shaped hub 2, the spindle parts 3, 3a being connected by a spring 4. In Fig. 2, the spindle is formed in part by a spring rod 5, a sleeve 2a, being drawn on the spindle part 3. In another construction, the spring part is shorter and the sleeve 2a extends to the driving worm for the counting mechanism. The hub and sleeve may be separate members, and may be of metal or an artificial resin.
Patent GB-259584-A (GB)
IPC: H04N1/029
Filed: 1926-10-06
Abstract: 259,584. Telefunken Ges. f³r Drahtlose Telegraphie. Oct. 7, 1925, [Convention date]. Drawings to Specification Copying-telegraphs.-In an arrangement for transmitting an opaque picture by the use of a light-sensitive cell the picture is explored by a beam of light projected thereon through the back of the cell and reflected upon the light-sensitive surface. A selenium cell or a vacuum photoelectric cell may be used. In the latter case the whole tube may be annular or the sensitive layer may be annular with a transparent centre. The cell may be shaped to the curvature of the transmission drum carrying the picture.
Patent GB-1261409-A (GB)
Title: Improvements in or relating to transistorised amplifiers
IPC: H03F3/30
Filed: 1969-05-15
Abstract: 1,261,409. Transistor amplifying circuits. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. 15 May, 1969 [24 May, 1968], No. 24893/69. Heading H3T. An amplifier comprises a plurality of transistors connected in a bridge circuit in which the two bridge halves are formed by two pairs of complementary transistors 1, 2 and 3, 4 respectively, the collectors of each pair of complementary transistors being connected together, means for connecting an output load, e.g. loudspeaker 9 in the bridge diagonal between the connection points 7, 8 of the collectors of the complementary transistors, and means for applying supply voltage - U B  between the ends of the other bridge diagonal; wherein at least one transistor, e.g. transistor 2 of only one of the pairs is driven by the signal to be amplified and each of the transistors 3, 4 in the other pair has its control electrode and its collector connected across at least a part of the load. In the embodiment the bases of transistors 3, 4 are driven from the slides of an adjustable potentiometer 10 connected across the load 9. The arrangement may be driven from an emitter-follower stage 11, negative feedback being provided by a network comprising resistors R x , R y . The Specification also describes a simplified embodiment (Fig. 1, not shown).
Patent GB-296411-A (GB)
Title: Improvements in or relating to electric discharge devices
IPC: H01J40/00
Filed: 1928-08-30
Abstract: 296,411. British Thomson-Houston Co., Ltd., (Assignees of Hull, A. W.), Sug. .31, 1927, [Convention date]. Vacuum tubes.-A discharge device comprises an anode 18, Fig. 1, a cathode 17, a control electrode 19, and an auxiliary electrode 22 having a light-sensitive surface co-operating with a further electrode 20, 21 which is connected to the control electrode 19 to apply potential to it, either the electrode 20, 21 or the control electrode 19 or both being insudated from the .exterior of the device, e.g. by being mounted on quartz, alumina, or like beads 23, 24. A light-sensitive surface is obtained on the electrodes 22, 19 by vaporizing caesium or other alkali metal in the envelope, and to prevent the deposition of this on the insulating-beads 23, 24 these may be provided with caps 28<1>, Fig. 1, or may be surrounded by heating-coils 27, 28, Fig. 3, in the filament circuit. In the construction shown in Fig. 4, the discharge device 30 is separated from the lightsensitive cell 29 by a, glass partition 31, the lightsensitive electrode 32 being connected to the grid or control. electrode 18<1> and the further electrode 35 to the anode 19<1>. In this construction the light-sensitive material is applied only to the elements in the cell 29, enabling the filament of the amplifier to he of any type, e.g. a thoriumcoated tungsten filament, without, danger of excessive photo-electric action of its light on the grid. A circuit for controlling the temperature of an electric furnace is shown in Fig. 2. Normally, the photo-electric effect on the control electrode 19 caused by light from the filament 17, which is kept at a constant temperature, is balanced against that due to light from the .furnace acting upon the electrode 22. If the light from the furnace is weak, the electrode 19 becomes positive and current flows in the anode circuit, which includes a resistor 39. This causes a potential to be applied to the grids 40 of a second discharge device 41 which is so negative that no current flows in the output circuit of this device, and a resistance-controlling relay 42 remains in-operative. If the furnace becomes too hot, the electrode. 19 becomes negative and stops the flow of anode current, the grids 40 assume cathode potential, and current floms in the output circuit of the device 41 to operate the relay 42.