baber/WOPTO huggingface dataset:
Patent GB-1497072-A (GB)
Title: Visualization and measurement of ultrasonic waves
IPC: G01N29/06
Filed: 1974-04-23
Abstract: 1497072 Measuring ultrasonic energy distribution RCA CORPORATION 18 April 1975 [23 April 1974] 17708/74 Heading G1G A system for determining the distribution of ultrasonic energy over an area comprises a flexible mirror 120 insonified by the energy, an optical interferometer in which two components 104, 106 of coherent light from a source 100 are directed on to a photo-detector 114 via a rigid reference mirror 110 and by reflection from a selected spot on the flexible mirror respectively, and means 116 for cyclically varying (wiggling) the optical path length of component 104 by more than half the optical wavelength at a wiggling frequency much lower than the ultrasonic frequency, whereby the peak signal (over the wiggling cycle) from the photo-detector 114 is substantially proportional to the peak displacement amplitude of the flexible mirror at the selected spot. The spot is deflected over the mirror 120 surface in a raster scan by optics 118, in synchronism with scanning of a CRT 126 which is brightness-modulated by the filtered peak photo-detector signal. The purpose of the wiggling and peak detection is to ensure maximum sensitivity and linearity of the system to displacement of the flexible mirror 120. Maximum sensitivity and linearity occur at the instants when the light components 104, 106 interfere substantially in phase quadrature at the photodetector. The peak signal from the photo-detector is filtered to remove frequency components lower than the ultrasonic frequency. The wiggling frequency is sufficiently higher than the light spot scanning frequency that at least one half-cycle of the wiggling occurs in the time for the spot to scan a distance equal to its diameter. To minimize the sensitivity of the system to low frequency noise the flexible mirror may be constructed as an optically reflective thin film/water/backing plate sandwich. The invention is applicable to measuring the radiation pattern of an acoustic transducer, the beam modifying properties of acoustic "optics" components, and the pattern of ultrasonic energy transmitted through biological specimens. The acoustic source in these applications may be pulsed and the peak photo-detector gated to be operative only when the pulse arrives at the flexible mirror, thereby gating out spurious signals. Wiggling of the optical path length is effected by moving  mirror 110 bodily with a Piezo-electric vibrator, or by using an electro-optic crystal modulator. The light spot deflection optics 118 comprise mirror galvanometers.
Patent GB-785992-A (GB)
Title: New quaternary ammonium salts
Inventor: JONES GWILYM THOMAS
IPC: C07C233/89
Filed: 1955-06-20
Abstract: The invention comprises compounds of the formula: CH2 = C(R)-CONH-R1-N(tert.)X wherein R is hydrogen or a methyl group, R1 is an alkylene radical, N (tert.) represents the group of atoms forming an aliphatic, cycloaliphatic, araliphatic or heterocyclic tertiary amine in which the nitrogen atom may carry as a substituent a carboxyalkyl group, and X represents the monovalent anion of a salt-forming acid.  X is exemplified by bromide, chloride, phosphate, acetate, stearate, methosulphate, dodecosulphate and para-toluenesulphonate anions.  The compounds are prepared by quaternizing an N-(tertiary amino-substituted alkyl)-acrylamide or methacrylamide with, for example, alkyl, alkenyl or aralkyl halides, alkyl sulphates, or halogen substituted fatty carboxylic acid salts, if desired in presence of a polymerization inhibitor such as 2 : 4-dimethyl-6-tert.-butylphenol. Specified amide starting materials are N-(b  - diethylaminoethyl) - methacrylamide, N-(g  - dimethylaminopropyl) - methacrylamide, N-(g  - diethylaminopropyl) - methacrylamide, N-(g  - dibutylaminopropyl) - methacrylamide, N-(b  - piperidinoethyl) - methacrylamide, N - (b -dimethylaminoethyl) - acrylamide, N - (b  - diethylaminoethyl) - acrylamide, N - (g  - dimethylaminopropyl) - acrylamide, N - (g  - dibutylaminopropyl) - acrylamide, N - (b  - dimethylaminoethyl) - methacrylamide, N - (b -morpholinoethyl) - methacrylamide, N - (g -piperidionopropyl) - methacrylamide and N-(g  - hexamethyleneiminopropyl) - methacrylamide.  The examples describe the preparation of trimethyl - (b  - methacrylylaminoethyl) - ammonium methosulphate, methyl - (b  - methacrylylaminoethyl) - piperidinium methosulphate, diethyl - methyl - (b  - methacrylylaminoethyl) - ammonium methosulphate, trimethyl-(g - methacrylylaminopropyl) - ammonium methosulphate, methyl - diethyl - (g  - methacrylylaminopropyl) - ammonium methosulphate, trimethyl - (b  - acrylaminoethyl) - ammonium methosulphate, methyl - diethyl(b - acrylylaminoethyl) - ammonium methosulphate, trimethyl - (g  - acrylylaminopropyl) - ammonium - methosulphate, allyl - diethyl - (b -methacrylylaminoethyl) - ammonium bromide, methyl - diethyl - (g  - methacrylylaminopropyl)-ammonium - para - toluenesulphonate, butyldiethyl - (g  - methacrylylaminopropyl) - ammonium bromide, diethyl - benzyl - (g  - meth-,-acrylylaminopropyl) - ammonium chloride methyl - dibutyl - (g  - methacrylaminopropyl)-ammonium methosulphate, methyl-dibutyl-(g -acrylylaminopropyl) - ammonium methosulphate, tributyl - (g  - methacrylaminopropyl)-ammonium bromide and benzyl-dibutyl-(g -methacrylylaminopropyl) - ammonium chloride. According to the Provisional Specification the alkylene radical R1 in the above formula may be interrupted by hetero-atoms such as oxygen.
Patent GB-180581-A (GB)
Title: Improvements in and relating to elastic fluid turbines
IPC: F01D5/30
Filed: 1921-06-29
Abstract: 180,581. British Thomson - Houston Co., Ltd., (General Electric Co.). June 29, 1921. Turbines.-Hardened projections 21 on the end of turbine rotor blades 20 are forced into a wheel 22 and a bucket cover 25 by shrinking and forcing the cover round the blades. The assembled parts are then firmly united by brazing or by fusion to form a complete rotor wheel. In assembling, the wheel is positioned between holders 14, 15 on a port 11 and the blades are placed in slots 18, 19 in the holders. The post is lowered into a recess in a cylindrical base 5, the lower holder 14 resting on a ledge 8<a> in a compressible ring 8, fitting in the base, the ring having radial slots 9<a>, for this purpose, extending from either side alternately. The cover 25 is placed round the blades on a ledge 8<b>, and the ring 8 is forced into the base 5, thus compressing the cover on to the blades.
Patent GB-369481-A (GB)
Title: Street or road dressing
IPC: E01C7/35
Filed: 1931-06-19
Abstract: A road-dressing composition comprises a bituminous material, particularly crude oil bitumen, and loess, with or without sand and mineral oil.  The ingredients are mixed hot and after cooling the mixture is crushed to granules of 2 mm. size.  It is applied to the road by rolling or tamping while cold.  The bitumen content may be as high as 25 per cent.
Patent GB-1243918-A (GB)
Title: Improvements in or relating to signal light devices for automobile vehicles
IPC: B60Q1/26
Filed: 1969-04-08
Abstract: 1,243,918. Road traffic signals on vehicles. COMPAGNIE DES LAMPES S.A. 8 April, 1969 [10 April, 1968], No. 17798/69. Heading G4Q. [Also in Division G1] In a signal light device for automobile vehicles comprising a lamp 1, 2 of a signal light adapted to be temporarily connected to an electrical source when a signal is to be emitted and a photo-sensitive element 8 controlling the intensity of the lamp 1, 2 as a function of the level of the ambient illumination, the lamp 1, 2 is connected in series with the emitter-collector circuit of a transistor 6 to the base of which the ', photo-sensitive element 8 is connected and an auxiliary lamp 9 having a resistance which varies in a non-linear manner as a function of its energizing voltage is connected between the emitter and collector of the transistor whereby a decrease in luminous intensity of the signal lamp 1, 2 takes place only below a predetermined ambient illumination. The signal lamps 1, 2 may be the vehicle stop lights or trafficator lights and the auxiliary lamp 9 may have a tungsten filament with a nitrogen, hydrogen or argon atmosphere. The photo-sensitive element 8 has a maximum resistance in darkness so that transistor 6 is biased OFF and the intensity of illumination of the signal lamps 1, 2 is controlled by the auxiliary lamp 9. As the ambient light increases to a point intermediate darkness and daylight the resistance of the photo-sensitive element 8 decreases and transistor 6 conducts to increase the intensity of signal lamps 1, 2. When maximum daylight occurs the photosensitive element 8 is at its minimum resistance and the transistor 6 is.fully conducting, making the voltage drop across the auxiliary lamp 9 zero to give maximum intensity to signal lamps 1, 2.
Patent GB-1456319-A (GB)
Title: Production of annealed pigments
IPC: C09C1/10
Filed: 1974-04-24
Abstract: 1456319 Annealed products BAYER AG 24 April 1974 [25 April 1973] 17836/74 Heading C1A [Also in Divisions C4-C5] An annealed product is prepared by applying an annealable mixture in the form of an aqueous suspension or paste containing at least 10% by weight of H 2 O, based on the total weight, to the surface of a hearth which has been heated to at least 500 C., the hearth being in the form of a norizontal, flat ring adapted to rotate about its centre; and in the course of one rotation of the ring heating the mixture to the temperature of formation of the required annealed product, calcining it and removing it from the surface of the ring before the rotation has been completed. In the examples a CoAl 2 O 4  spinel pigment, a (Ti, Sb, Cr)O 2  rutile yellow pigment, sodium zirconium silicate, a (Zr, V)SiO 4  zirconium blue pigment and finely divided nickel oxide NiO are prepared from suspensions containing cobalt oxide, aluminium hydroxide, water, titanium dioxide, antimony oxide, chromium oxide, zirconium sand, sodium hydroxide, sodium zirconium silicate, ammonium vanadate, sulphuric acid and nickel catalyst residues.
Patent GB-1013098-A (GB)
Title: Improvements in or relating to pulse generating circuits
IPC: H03K3/013
Filed: 1964-04-29
Abstract: 1,013,098. Transistor pulse circuits. BROOKHIRST IGRANIC Ltd. April 29, 1964 [June 18, 1963], No. 17885/64. Heading H3T. A pulse generator comprises a first (normally conducting) transistor, a second (normally non- conducting) transistor and a third (normally conducting) transistor, the first being rendered non-conducting during the discharge period of a capacitor coupled to its base whereby the second is rendered conductive and the third is rendered non-conductive during the discharge of a capacitor coupled to its base. Operation of switch S1 cuts off transistor TR1 and renders TR2 conducting, feedback through capacitor C1 maintaining this state for a predetermined period in the manner of a flipflop circuit. The decrease in potential of the collector of TR2 causes TR3 to become non- conducting until such time as the charge in capacitor C2 is restored by current in R7. The resulting pulse at the collector of TR3 is applied to a load 10 and causes the capacitor C3 to discharge. At the end of the pulse at the collector of TR3 the positive going potential is transferred through CR3 to cut transistor TR4 off until such time as the charge is restored by current through R9. Accordingly a further pulse, narrower than the pulse at the collector of TR2 and delayed with respect thereto, is applied to load T3. Switch S1 may be a mechanical contact or a transistor controlled by a mechanical contact and the circuit is not responsive to contact bounce. Two circuits similar to Fig. 1 may be provided in which case a pulse from the first load 10 of the other circuit may be applied to capacitor C4 to produce a delayed output pulse also in load 11.
Patent GB-1425844-A (GB)
Title: Document file or folder
IPC: B42F13/02
Filed: 1973-04-13
Abstract: 1425844 Filing folders E A ROCH 10 April 1974 [13 April 1973] 17893/73 Heading B6E A filing folder folded from a sheet 1 to define a pair of covers 5, 6 and a spine 2 separated from the covers by respective flanges 3, 4 is provided with a pair of sheet holding and transfer devices 7, each device including a flat prong 8 and a prong receiving post 12, an arm 13 with a hole 14 receiving the free end of prong 8 for filing purposes and a tubular arm 15 of the post serving to receive the free end of the post for contents transfer purposes.
Patent GB-916534-A (GB)
Title: Improvements in and relating to cube and pellet extrusion of feedstuffs
Inventor: WILLIAMS-RAAHAUGE ERNEST
IPC: B30B11/22
Filed: 1961-05-17
Abstract: A die for use in a cube and pellet extruding machine is made from a mastersitic or ferritic chrome steel having a chromium content of from 8% to 20% by weight and which in its unhardened state has a Brinell hardness up to 290.  The die may be case hardened or through hardened and may be of the flat plate or annular ring type.
Patent GB-667974-A (GB)
Title: Steel drums
IPC: F22B37/22
Filed: 1949-07-07
Abstract: 667,974. Metal containers. THOMPSON (WOLVERHAMPTON), Ltd., J., and GRIFFITHS, S. H. July 3, 1950 [July 7, 1949], No. 17928/49. Class 66 [Also in Group XXII] In a cylindrical steel drum wherein an end plate has a cylindrical outwardly directed flange welded within the end of the drum shell, the flange extends beyond the end of the shell or vice-versa and an annular weld is made in the angle between the wall of the projecting part and the end of the other part, being so positioned that an X-ray photograph of the weld is obtainable with rays directed radially of the shell. In an embodiment the end of the shell 1, Fig. 1, is secured to the flange 2 by a fusion weld 3 in a V-shaped recess between a bevelled end of the shell 1 and a lip 2<SP>x</SP> on the flange 2. A film &c. 6 is located to intercept rays 4 from a source 5. The lip 2<SP>x</SP> may be replaced by a lip of rectangular section or by a bevelled lip. In a further embodiment the weld 3, Fig. 8, is formed in a V-shaped recess between the bevelled end of the shell 1 and a metal band 8, the latter being welded at 9 to the flange 2. In another embodiment, plug welds 7, Fig. 7, may be used in addition to the weld 3. Modifications include the weld provided between the shell and a cranked flange and the welds provided radially inwardly of the shell.
Patent GB-363326-A (GB)
Title: Improvements in electro-mechanical or electro-acoustic apparatus
IPC: H04R9/02
Filed: 1930-06-11
Abstract: 363,326. Optical sound recording apparatus. RUDIN, R. POLLAK-, 3, Mayerhofgasse, Vienna. June 11, 1930, No. 17942. Convention date, June 12, 1929. Void [Published under Sect. 91 of the Acts]. [Class 40 (ii).] A rigid conductor 1 moves within the field of a magnet 5 and forms the low-voltage winding of a transformer 8. The conductor is supported at one end by suspensions 2 or it may be pivoted. The conductor may be silvered, or its surface fluted, to reduce skin effect, and it may consist of alternate strips of insulating and conducting materials to reduce eddy currents. The conductor may operate a shutter controlling the intensity of a beam of light for optical sound recording.
Patent GB-977720-A (GB)
Title: Improvements in or relating to apparatus for the storage of articles
IPC: E04H6/18
Filed: 1960-05-21
Abstract: 977,720. Storage systems with selective retrieval; sorting letters. A. R. EDWARDS. Feb. 20, 1961 [May 21, 1960; Aug. 25, 1960] Nos. 17999/60 and 29320/60. Headings B8A and B8E. A storage system comprises a set of load supports arranged in a sequence within which they are capable of movement relative to each other, an input and an output position, and means for transferring a loaded support from any one of a plurality of positions within the sequence directly to the output position. The principal application of the invention is to mechanical garages, but the loads may be other goods, particularly letters assigned to different destinations. In the garage shown in Fig. 1, a vehicle is driven into an entry 3 where it is left in a lift shaft 5 on one of the platforms 9 of the system. Within this shaft, lifting members 13 are operated by cylinders 14 in such manner that each platform in the shaft is raised one storey for each actuation of the cylinders. The platforms 9 outside the left shaft rest on rails 8 extending along each storey and lowering means 18 operated by cylinder 19 are arranged in two sets 16, 17 at the opposite levels of the storeys. These lowering means, together with horizontally reciprocable towbars 15, latched to the platforms on the rails 8 (see Fig. 4), are operated in synchronism with the lifting members 13 in shaft 5 so that when the latter are actuated all the platforms in the garage move one space in a labyrinthine path extending up the shaft 3, leftwards in the top storey, downward at the left-hand end of the top storey, rightward in the next lower storey, and so on. Retrieval of a stored vehicle is achieved by circulation of all platforms until the required vehicle is at the extreme left of one of the storeys. The platform on which the vehicle rests, with its wheels on the slats 11 shown in Fig. 4, is then engaged by a fork device 20 which is moved from the position shown in Fig. 1, i.e. within lift shaft 6 leading to exit 4, to a position below the platform. The fork device 20 (see Fig. 6) comprises a central stand 22, which can pass through the central space between the rows of slats 11 of the platform 9, and projecting prongs 23 which are so spaced as to pass through the gaps between adjacent slats 11. The vehicle is transferred to a position where its wheels rest on the prongs 23 by lowering the platform 9 through the fork device. The latter is then returned to the left shaft 6 and lowered to the exit 4. At the exit there projects through shaft 6 a ramp 26, Fig. 8, in the form of an inclined rollerway arranged so that the prongs 23 of the fork device can pass between its rollers 25. Thus as the fork device passes through the ramp, the vehicle is left on the rollers and conveyed thereby through the exit.
Patent GB-1191721-A (GB)
Title: Production of Detergent Laundry Bars of Low Specific Gravity
IPC: C11D17/00
Filed: 1967-04-19
Abstract: 1,191,721. Screw mixers. COLGATE PALMOLIVE CO. 19 April, 1967 [21 April, 1966], No. 18010/67. Heading B1C. [Also in Divisions B5 and C5] An apparatus for incorporating gas into a detergent mix making use of shearing and smearing actions and, subsequently extruding a bar comprises three cylindrical barrels 13, 27 and 46 fitted with rotating worms 12, 28 and 47, the pitch of the first worm 12 varying along its length, two zones 26 and 44 connected to a suitable supply of gas through pipes 67 and 68 having pressure-regulating valves 69 and 71 respectively, three sets of' perforated plates connected to rotating knives and situated at the exit end of each barrel, propellors 36 and 51, and a final exit mouth consisting of a tapered annular space 53, situated between a central conical spreader 54 and a heated nozzle 56. Heat control jackets are attached to each barrel, to the nozzle 56 and to the die 57; the plate 52 is also heated. Guiding chutes 72 and 73 are mounted alongside the respective rotating knives. Another form of apparatus uses companion sets of dual worms, the worms of each set rotating in opposite directions so that both worms of each set are moving downward in the central part of each barrel. If atmospheric pressure is to be used in either zone 26 or zone 44 then there is no need to use a closed chamber or zone.
Patent GB-815495-A (GB)
Title: Means for emptying liquid from tanks
Inventor: HOBSON ERIC DOTT
IPC: B63B13/00
Filed: 1956-06-11
Abstract: 815,495. Tanks. YARROW & CO. Ltd., and ANDRE RUBBER CO. Ltd. May 30, 1957 [June 11, 1956], No. 18014/56. Class 69 (1). [Also in Group XVII] Liquid is drawn off from a tank through a suction pipe 7 connected to a suction chamber which comprises a wall 4 extending upwardly from the tank floor 2 and having at least one elongated opening 8 formed in its lower edge and covered by a flexible membrane 9, the lower edge of the membrane being disposed in closely spaced relation to the floor and being free to flex inwardly of the opening to provide an elongated narrow gap for liquid to flow from the tank to the suction chamber. As shown in Fig. 1, the tank is divided into two compartments 2b, 2c, each compartment having an elongated opening 8. The openings may be covered by separate membranes or a single flexible membrane may be provided having portions extending over each opening. Vertical corrugations 9a are formed in the membrane to impart fullness. The lower free edges of the membrane may be provided with stiffening ribs. The membrane may flex outwardly when the tank is refilled. Part of the suction chamber may be formed by the lower portions of the vertical side walls of the tank or the chamber may be formed as an independent unit. In the case of tanks in a ship more than one suction chamber may be provided on opposite walls of the tank so that the liquid may be drawn off whether the ship is heeled to one side or the other.
Patent GB-1088977-A (GB)
Title: Apparatus for detecting and measuring signals
IPC: G01T1/185
Filed: 1966-03-03
Abstract: 1,088,977. Ionization gauges. ETABLISSEMENT POUR APPLICATIONS ELECTRONIQUES. March 3, 1966 [March 11, 1965; Feb.4, 1966], No.18027/67. Divided out of 1,088,976. Heading G1N. The density or degree of purity of gases, vapours or fumes, is measured by an ionization chamber 2, Fig.4, which is connected in series with a reference ionization chamber 1, also open to the gas under investigation, the distance between the electrodes being arranged so that the chamber has a high ion-recombination rate. In this arrangement both chambers are sensitive to pressure variations in the ambient gas but the measuring chamber is also sensitive to variations occurring in the chemical nature and the degree of concentration of the ambient gas. In the embodiment, the two chambers form a potential divider to a supply source 3, the common point 4 between the chambers being connected to the gate electrode 8 of a metal-oxide semi-conductor device 9, to actuate a meter 11, or relay. Resistances 12, 14 and a negative temperature coefficient resistance 13 form a network compensating for temperature variations of M.O.S device. A load 10, which can be an alarm circuit, a wire or wireless remote control circuit of any electric load in general, which is required, may be inserted either in the source or drain circuit of the M.O.S. device. The ionization chamber 2 consists of a cylindrical perforated electrode (35), Fig. 6 (not shown), with a central cylindrical electrode (32) which carries the radioactive charge. The reference chamber comprises two parallel disc electrodes 5, 6, the former being adjustable on screw (27) to vary the spacing between the electrodes, screw (28) locking the arrangement in position. The radioactive source is placed in the centre of the disc 5. The two chambers are enclosed within an outer chamber (21), Fig. 5 (not shown), having windows (22), (23), covered with metal grids (24), through which the ambient gas can enter the device.