baber/WOPTO huggingface dataset:
Patent GB-1499981-A (GB)
Title: Doppler flowmeter
IPC: G01S15/89
Filed: 1974-01-03
Abstract: 1499981 Ultrasonic flowmeters NATIONAL RESEARCH DEVELOPMENT CORP 2 Jan 1975 [3 Jan 1974] 00313/74 Heading G1G An ultrasonic Doppler flowmeter utilizes the difference spectrum between two Doppler-shifted frequency spectra (derived from up-and downstream frequency changes) to derive an indication of flow velocity. As claimed, a Doppler flowmeter for measuring blood flow in a vascular channel comprises an assembly of ultrasonic transducers arranged to direct ultrasonic radiation to a zone 13 and receive radiation reflected therefrom, the transducers being spaced apart to give first and second beam paths from a transmitting transducer 10, 11 to a transducer receiving radiation 12, the paths having resolved components in opposite directions, and further comprises processing means coupled with the assembly having means for monitoring frequency differences between reflexions derived from first and second radiation paths and/or for providing an indication proportional to said frequency differences, the first and second paths forming acute and obtuse angles respectively with the direction of blood flow. In a preferred embodiment transmitting transducers 10, 11 having frequencies of 6MHz and 6À0081MHz are coplanar with the receiving transducer 12 which is symmetrically disposed for maximum sensitivity. The received radiation is amplitude modulated near a frequency of 8À1kHz, which frequency is increased or reduced by the Doppler effect according to the direction of fluid-flow. After filtering out the carrier frequencies there results a spectrum Fig. 6(c), (not shown) shifted from the modulation frequency. This spectrum may be analyzed and the results of this analysis may be displayed as a bar chart (e.g. Fig. 11, (not shown) whose ordinate represents the maximum flow velocity in the zone 13. The results are largely independent (within 10%) of the angle between the assembly plane and the flow direction, provided this angle # 25 degrees. In a further embodiment Fig. 13, (not shown), the transmitter and receiver r¶les are reversed. An embodiment with four transducers Fig. 15 (not shown) uses a separate receiver (72, 73) with each transmitter (71, 74) with interchangeable r¶les. The transducers need not be coplanar. Transducer Assembly: Three methacrylate blocks 41 holding air-backed ceramic transducers 40 are mounted on brass blocks 42 whose mutual spacing relative to the central block can be altered by finger wheel 45 to give an adjustable depth range. The angle between the outer blocks 42 may be predetermined according to design criteria.
Patent GB-448194-A (GB)
Title: Improvements in wrappers or bags for enclosing articles of wearing apparel
IPC: B65D65/18
Filed: 1935-01-04
Abstract: 448,194. Display wrappers &c. for wearing - apparel. COOK, F., 5, Stonegate Square, Meanwood, Leeds, and COOK, H., 13, Wandle Road, Croydon, Surrey. Jan. 4, 1935, No. 330. [Class 94 (ii)] [See also Group XVIII] An article of wearing-apparel, e.g. a shirt &c., is packed in a wrapper or bag composed partly of transparent material, to reveal a substantial part of the contents, and partly of opaque material, e.g. fabric &c., the latter simulating in appearance a suitable garment, e.g. a waistcoat &c., adapted for wear with the article enclosed in the wrapper &c. The opaque material is preferably attached by glueing, sewing, &c. to the transparent material and forms a hinged overlay thereto.
Patent GB-1164871-A (GB)
Title: An Installation Comprising a Plurality of Carrier Elements and Driving Means for Displacing them along a Track
IPC: A47B53/02
Filed: 1967-01-03
Abstract: 1,164,871. Track propulsion systems. IPRO, INDUSTRIAL & TECHNICAL PRODUCTS. 3 Jan., 1967 [5 Jan., 1966], No. 404/67. Heading B7L. Separate shelving elements 11 to 16, Figs. 1 and 2, which are provided with rollers 17 movable on track rails 18 and which form a row, are movable by a driving member in order to form a space between any two elements, e.g. 14 and 15, as shown, the driving member comprising a rail 19 which extends alongside one track rail 18 throughout the length of the row and is constantly driven backwards and forwards, the travel of the rail 19 being equal to the length of the space to be formed between two elements, each element being selectively latchingly coupled to the driving rail 19. Each element has a coupling bolt 23 operable by a handle 22 to move downwardly towards the rail 19 under the urge of a spring when the handle is moved to the position shown in dotted lines in Fig. 1. A coupling hole is provided in the rail 19 for each element 11 to 16, the holes 31 to 37 being offset in two rows. When the rail 19 is moved from the extreme left hand position shown in Fig. 2, to the extreme right, the holes assume the position 31<SP>1</SP>, 32<SP>1</SP> &c. If it is desired to form a gap between the elements 12, 13, the handle of the element 13 is operated and the bolt is urged downwardly by its spring into the hole 33 and the bolt and the elements 13, 14 are moved to the right until the hole 33 is displaced to the position 33<SP>1</SP> and the element 14 abuts the element 15, whereafter the bolt on the element 13 is uncoupled from the rail 19. Similarly, to form a gap between the elements 15, 16 the handle 22 of the element 15 is turned and its bolt engages, slidingly, the rail 19 until the hole 35 moves to the position 35<SP>1</SP>, whereafter the bolt is latched to the rail 19 and the element 15 moved to the left to abut the element 14 and is then uncoupled from the rail 19. The rail 19 is connected by elements 47, 48 to the ends of a piston-rod 46 extending through a double-acting hydraulic cylinder 43 supplied with pressure liquid via an electromagnetic reversing valve 49 from an electrically driven pump (not shown). The valve works in dependence on an electric limit switch 50 actuatable by cams 52, 53 on a push-bar 51, movable by driver elements 54, 55 driven by the elements 47, 48. The piston is accelerated and braked through the agency of an adjustable control valve 64 in the hydraulic supply pipe.
Patent GB-1097519-A (GB)
Title: Method for the production of finned pipes for heat exchanger apparatus
IPC: B21C37/20
Filed: 1966-01-05
Abstract: 1,097,519. Making finned tubes. G.PALLONI. Jan. 5, 1966 [Jan. 13, 1965], No. 457/66. Heading B3A. [Also in Division F4] In a method of making finned pipes for heat exchangers, a relatively deep, but narrow, cut, inclined to the axis of the pipe, is made in the pipe wall and the portion of the wall 3 bounded by the cut is bent outwardly to form the fin 4. The cut may be circumferential or it may be a single or multiple helix.
Patent GB-389600-A (GB)
Title: Improvements in screw propelled pedal driven pleasure boats
IPC: B63H16/20
Filed: 1932-01-07
Abstract: 389,600. Manually-operated screw propellers. BEECHING, F., 8, Dene Side, Great Yarmouth. Jan. 7, 1932, No. 480. [Class 114.] In apparatus for manually operating screwpropellers the pedal mechanism is adapted to be rotated in one direction and a feathering propeller is fitted for reversing, the reversing hand-lever being positioned adjacent the steering-wheel. A reversing propeller 21 is carried by a shaft 10 having a flywheel 19 and a pitchreversing lever 17 disposed adjacent the steering-wheel 2. The shaft 10 is rotated by bevel gearing 11, 12 from a transverse shaft 13 which is coupled by sprocket wheels 27, 33 with other sprockets 25, 30 on pedal shafts 24. The sprocket drive is arranged to be unidirectional. If desired, the pedal gear may be fitted in multiple to drive transverse shafts which are in turn coupled to the main transverse shaft 13.
Patent GB-520472-A (GB)
Title: Improvements relating to producing powders or granules from metal, ivory, fibre and the like
IPC: B26D1/38
Filed: 1939-01-06
Abstract: 520,472. Milling-cutters ; making metal &c. powder. BENNETT, J. Jan. 6, 1939. No. 487. Classes 83 (ii) and 83 (iii)] Powders or granules of metal, ivory, fibre &c. are made by means of a rotary cylindrical cutter consisting of a number df toothed laminations which are pressed out of hardened steel and are assembled on a mandrel. The cutters may be of different thicknesses to vary the grade of the powder produced..
Patent GB-395002-A (GB)
Title: Process and apparatus for producing sheet metal electrolytically
IPC: C25D1/04
Filed: 1932-01-07
Abstract: 395,002. Electrolytic production of metal sheet. ANACONDA SALES CO., 25, Broadway, New York, U.S.A. Jan. 7, 1932, No. 534. Convention date, Jan. 7, 1931. [Class 41:] Metal is continuously deposited on a rotating cathode drum 27, and is stripped as a foil 43. To build up the foil by further electro-deposition on one face only, it is passed over a roller 46, down one face of a guide 75 serving as cathode connection, up the other face and over a roller 73 to successive rollers and guides, travelling in a series of vertical loops between soluble anodes 76 without ever passing beneath the anodes. The foil is withdrawn between rollers 56, 59. The rollers 46 are provided with sprocket wheels 47 driven by a chain 53. The guides 75 may be of skeleton structure comprising a number of cross-bars arranged to make contact with the foil at several points. Contact may be further improved by facing the structure with copper sheet. The crosssection is greatest half-way up. The guides may be provided with rollers at the bottom. Means are provided for adjusting the position of the guides about two axes. The anodes 76 may be of crude metal. The first and last anodes should be exactly parallel and intermediate anodes approximately so. Some of the anodes are slightly greater in width than the foil and some slightly less. The anodes for the drum 27 consist of segments 35, 36, 38 of lead spaced to permit circulation of electrolyte and escape of sludge. The drum 27 is cleaned by a wire brush 42<1> at the point of entering the bath. In a modification the foil is stripped near this point, the foil on the upper half serving to protect the drum from dirt and oxidation. The foil instead of passing direct from the drum.27 to the thickening apparatus may be wound in coils and transferred to other baths for thickening. Foil may be thickened by a single passage round a guide in vertical loop formation, deposition taking place on the outer face only. In the apparatus shown in Fig. 17, foils 83 from a pair of coils passes down a central slot in a, guide 82 and up the two sides respectively between anodes 86, thickening being effected in a single upward passage ; by this means sheets whose thickness would be too great to permit of bending round successive guides may be produced. The sheets so produced may be reduced by rolling.
Patent GB-1389182-A (GB)
Title: Dosing device
IPC: B65G47/72
Filed: 1973-01-04
Abstract: 1389182 Delivering measured quantities of fluent material C T SMITS 4 Jan 1973 [6 Jan 1972] 607/73 Heading B8N A device for delivering measured quantities of material from a silo comprises a housing 1 having an inlet 10 and first and second outlets 5, 6, a slide 13 movable in the housing from a material-receiving position beneath the inlet to a delivery position above the first outlet, and a movable closing member 22 which when moved together with the slide diverts the material through the second outlet. Normally the slide 13 is urged by springs 23 towards the left to its charging position beneath the inlet 10 so that its bottom end is covered by a plate 11 and a blanking-off plate 14 projects through the side of the housing. When the slide is pulled to the right to its discharge position by a cord 25, its contents fall straight down through the first outlet 5 and the blanking-off plate 14 covers the inlet 10. When the closing member 22 is pulled to the right by a cord 26, the end plate 21 slides over the plate 11 and carries the slide 13 to its discharge position where its contents fall down the sloping surface of the closing member 22 into the outlet 6.
Patent GB-891925-A (GB)
Title: Improvements in the production of copolymers containing hydroxyl groups
IPC: C08F214/06
Filed: 1961-01-06
Abstract: 891,925. Terpolymers. CHEMISCHE WERKE HULS A.G. Jan. 6, 1961 [Jan. 7, 1960], No. 613/61. Class 2(6) The Specification describes the production of a copolymer of vinyl chloride (e.g. 51-94%), vinyl acetate (e.g. 16-2%) and endomethylene tetrahydrobenzyl alcohol (e.g. 33-4%). Polymerization may be carried out according to usual methods. The example specifies the use of an aqueous medium with 1% of a sodium alkyl sulphonate with 12 to 14 carbon atoms as an emulsifier and a mixture of potassium persulphate and sodium pyrophosphate as a catalyst at a temperature of 50‹C. and with mild stirring. The polymer is precipitated using a 1:1 ratio of 5 % sodium chloride solution.
Patent GB-1502082-A (GB)
Title: Orthoester polymers
IPC: C08G4/00
Filed: 1976-01-08
Abstract: 1502082 Sustained release compositions ALZA CORP 8 Jan 1976 [28 Jan 1975] 00683/76 Heading A5B [Also in Division C3] Sustained release compositions contain active ingredients and polymers of formula where R<SP>1</SP> is a di- or poly-valent organic radical R<SP>2</SP> and R<SP>3</SP> are monovalent radicals or are linked together (as shown by the dotted line) to form a heterocyclic ring and n is at least 10. The radical R<SP>1</SP> may be alkylene, alkenylene, oxaalkylene, cycloalkylene, cycloalkenylene, cycloalkanedi - aliphatic hydrocarbylene, phenylene or phenyldi - aliphatic hydrocarbylene and may be substituted by alkyl, alkoxy or alkenyl groups; R<SP>2</SP> and R<SP>3</SP> when not directly linked together may be alkyl, alkenyl or alkenyloxy groups or -OR<SP>1</SP>O-, at least one being alkenyloxy or -OR<SP>1</SP>O-, R<SP>2</SP> and R<SP>3</SP> when linked together form with the carbon atom of the polymer chain a hetero-mono-or polycyclic group with I or 2 oxygen heteroatom linkages to the carbon atom of the polymer chain the remaining annular atoms being carbon atoms optionally substituted by alkyl, alkoxy or alkenyl groups. The polymers may be homopolymers or random or block copolymers. The polymers are bioerodible and the active ingredient e.g. a drug, is released slowly as the polymer erodes e.g. in or on a living body. In Examples there are described devices for application to the skin, an ointment, solid implants and ocular inserts.
Patent GB-191958-A (GB)
Title: Improvements in wringers and mangles
IPC: D06F61/02
Filed: 1922-01-10
Abstract: 191,958. Whittaker, W., Duckworth, J. A., and Whittaker Bros. (Accring- ton), Ltd. Jan. 10, 1922. Mangles and wringers, pressure and rollerseparating arrangements for.-In powerdriven wringers and mangles in which pressure on the top rollers is exerted by screws and springs at both ends, means are provided for quickly releasing the pressure in an emergency comprising pivoted or hinged cross-pieces carrying the screws and held down by catches which may be released by a blow. The Figure shows a wringer in which pressure in each end of the top roller is exerted by a screw h through a sliding piece i and two springs c surrounding rods b fastened to a cross-bar a by nuts e. Each screw h screws into a cross-pin f hinged to the cross-bar a and secured by a catch m engaging under the bar a. The two catches m are formed on projecting pivoted bars l which are connected together by a rod o, and are released by pushing or striking the rod o upwards, the bars f and screws h being then free to rise and allow the upper roller to be raised by springs p. In the case of a mangle having an ordinary cast-iron frame and a single spring at each end the crossbar a has lugs which are bolted to the frame. In a modification, the cross-pieces f are hinged at the side of the cross-bars a and the catches m are mounted on the cross-bars a and connected together by a rod provided with pins working in slots, so that the catches are released when the rod is struck down. In another modification, the cross-pieces f are hinged at the side of the cross-bars a and the catches form part of cranked bars which are connected together by a rod which is struck upwards to release the catches. Specification 4645/15 is referred to.
Patent GB-418476-A (GB)
Title: Improvements in or relating to grinding apparatus more particularly for machining rail joints
IPC: E01B31/17
Filed: 1934-01-08
Abstract: 418,476. Grinding rail joints &c. MARCUS, F., 20, Neustrasse, Ronsdorf, Wuppertal, Germany. Jan. 8, 1934, No. 719. Convention date, Jan. 10, 1933. [Class 60.] Apparatus for grinding rail joints &c., consists of a holder a having its ends bent down to rest on the surface b undergoing treatment and having a hub d and two hand grips c for operating the apparatus. Within the hub is a sleeve g adjustable by a screw and having mounted in ball bearings therein a shaft e carrying a grinding wheel h driven through gearing i, k, by a flexible shaft. Reference has been directed by the Comptroller to Specification 6754/03 and 19804/05, [both in Class 60].
Patent GB-765769-A (GB)
Title: Cast bandage
IPC: A61F13/04
Filed: 1955-01-10
Abstract: 765,769. Cast-forming bandages. JOHNSON & JOHNSON. Jan. 10, 1955 [Jan. 11, 1954], No. 736/55. Class 81(2) In order to provide a cast-forming bandage with one-way stretch properties, so that it may readily adapt itself when it is fitted over irregularities in the body contours, the base fabric is-formed from parallel chains of knitted loops 10, linked by zig-zag threads, 15, extending between the chains. If the. fabric is pulled along the length of the chains the loops tighten and prevent stretching, but if the pull is applied-in the perpendicular direction, distortion of the chain allows considerable stretching. Other forms of loops in the knitted chains may be used and the linking threads may extend across one or more chains.
Patent GB-1490953-A (GB)
Title: Shaft cooler and method of operating the same
IPC: F27D3/00
Filed: 1976-01-09
Abstract: 1490953 Cooling discharged material POLYSIUS AG 9 Jan 1976 [5 Feb 1975] 00763/76 Heading F4B A shaft cooler for material discharged from an upper rotary tubular kiln 2 comprises perforated comminuting rolls 4 horizontally arranged beneath a layer of the material between 50 cm. and 1 m. thick through which cooling air upwardly passes from the rolls and having an aftercooling zone formed beneath the rolls which has indirect cooling means formed by tubes 13, 14 and a depth several times greater than the upper layer. The rollers each have their own drive and fan. The tubes are formed into an upper and lower group 13, 14, each group having a separate fan supplying air from opposite sides of the shaft, which air finally passes to the fans supplying the rolls.
Patent GB-304722-A (GB)
IPC: B32B27/00
Filed: 1929-01-09
Abstract: 304,722. Wolff & Co., and Weingand, R. Jan. 25, 1928, [Convention date]. Compound sheet materials.-A composite sheet material consists of one or more lavers or foils consisting of cellulose swelling in water, and obtained from viscose or other aqueous solutions of regenerated cellulose, combined with one or more layers or foils consisting of cellulose derivatives not affected by water, such as celluloid, in such a way that no two sheets of cellulose swelling in water are in juxtaposition. The layers are preferably united by an agglutinant which is resistant to water, such as gelatin, albumin, or. casein hardened after application with formaldehyde, quinone, or alum, or alternatively, a condensation product of urea and formaldehyde. The composite material may be printed upon on the cellulose hydrate side, and chemical reactions may be allowed to take place in this latter layer.
Patent GB-833936-A (GB)
Title: Improvements in or relating to fittings for graduated rulers
IPC: B43L9/04
Filed: 1958-01-09
Abstract: 833,936. Mathematical drawing-appliances. STAUB, H. K. Jan. 9, 1958, No. 891/58. Class 97(3) [Also in Group XXIII] A fitting for a grooved graduated ruler comprises a loose member with a projection for engaging the outer groove and adapted to be tightened so as to lock the fitting on the ruler. As shown in Fig. 2 a graduated rule 11 has slidable thereon a trammal head 15 in which is loosely mounted a member 21 having a projection 20a engaging a groove in the rule 11. Member 21 may be pulled tight by a clamping nut 16a so as to lock the trammel head in any desired position on the rule. There may be two trammel heads slidable on the rule 11 so as to form a beam compass.
Patent GB-673032-A (GB)
Title: A method for the production of preservatives for wood and other organic materials
IPC: B27K3/32
Filed: 1947-06-23
Abstract: 673,032. Wood &c. preservatives. HAGER, B. O. June 23, 1947 [Feb. 7, 1947; May 9, 1947], No. 898/50. Divided out of 16546/47 (as open to inspection under Sect. 91). Class 81 (i). A preservative for the treatment of wood &c. subject to attack by fungi, insects and marine borers is produced by bringing together in an aqueous system a hexavalent chromium compound of at least one of the metals calcium, strontium, barium, a pentavalent arsenic compound, and at least one carbonate or sulphate of zinc, copper, aluminium, magnesium, manganese, iron, mercury, chromium or nickel, the compounds being employed in such proportions to produce a solution sufficiently acid to hold the resulting arsenates of the last mentioned metals in solution but to precipitate the alkaline earth carbonates or sulphates, which are removed. The required acidity is produced by the use of arsenic acid, or acid arsenate or chromate. Solutions containing 15 per cent-20 per cent As 2 O 5  are suitable. Excess of calcium, &c. may be precipitated with sulphuric acid and/or carbon dioxide. The chromium compound used may be produced by heating in air a mixture of chromium ore, ferrochromium or chromium waste with calcium oxide and/or carbonate; the arsenic compound by oxidation of arsenious acid with nitric acid or by heating with calcium nitrate. In a modification, a metal arsenate may be dissolved in sulphuric acid and the calciumchromium compound then added. Fluorine compounds, &c. may be added to the solution obtained.
Patent GB-997877-A (GB)
Title: Method and apparatus for locating naturally occurring subsurface petroliferous deposits
IPC: G01N21/35
Filed: 1962-01-10
Abstract: 997,877. Prospecting. ATLANTIC REFINING CO. Jan. 10, 1962 [Jan. 26, 1961], No. 912/62. Heading E1F. Means for locating subsurface petroliferous deposits by detecting gas plumes 19 originating therefrom comprises an airborne or surface vehicle 9 carrying a detector 23 capable of detecting at least one component of the plumes and a device 29 for determining the geographical position at which the component is detected. The vehicle is moved in the path shown in Fig. 2 the distance X, and the height at which an airborne vehicle flies, being determined by the minimum size of the plume to be detected and to the prevailing meteorological conditions, compensation being made for topographical features, such as mountains 21 or cities, or such features being avoided. Fig. 4 shows a detector 23 comprising infra-red cameras 35, 37, a filter 43 which absorbs the methane part of the infra-red spectrum, and output lines 45, 47. The detector may be designed to operate over an area or on a point. When directed towards the earth from an airborne vehicle the detector is actuated by the infra-red energy from the earths surface, the outputs from the cameras being balanced in a comparator 25 (Fig. 3) to correct for differences in the earths surface. When the detector passes over a plume there is a difference in the outputs which is logged on a recorder 27 together with the geographical position supplied by the device 29. Instead of being directed towards the earth the detector may be aimed at a point in the sky, other than the sun, the air under observation being heated by the sun. Fig. 8 shows a detector actuated directly by the suns rays, infra-red cameras 57, 59 being connected to a modified Wheatstone bridge which is initially adjusted so that a meter 83 reads zero. When a part of a plume lies between the sun and the detector, the meter registers a current which is logged together with the geographical position by a device 85. In a modification in (Fig. 9, not shown) the air is sampled by a tube or tubes and is examined by the flame ionisation method to find the carbon content of the air.