baber/WOPTO huggingface dataset:
Patent GB-1079586-A (GB)
Title: Improvements in or relating to rotary regenerative heat exchangers
Filed: 1965-10-11
Abstract: 1,079,586. Welding by fusion. H. BRANDT, and A. KRITZLER, [trading as APPARATEBAU ROTHEMUHLE BRANDT & KRITZLER]. Oct. 11, 1965 [Oct. 24. 1964], No. 43062/65. Heading B3R. [Also in Division F4] An edge of a plate element 39 consists of at least two layers 41, 42 of metal applied to the plate material by welding, the innermost layer 41 consisting of a hard metal (e.g. having a Brinell hardness of 150) and the outermost layer 42 consisting of a softer metal (e.g. having a Brinell hardness of 90). Both the layers 41, 42 may be made of steel and welding-on may be effected by using filler rods or wires, or powdered metal, to form a particular layer. In a method described, copper plates 47 are applied to both sides of the partition 39 and together form a channel into which the metal layers 41, 42 are built up by welding. The copper plates 47 are then removed. In use, the plate element is a partition in a thermal regulator matrix (see Division F4), the thickness of the outermost (soft) layer being subsequently reduced by machining or bedding- in to form a sealing surface.
Patent GB-1511547-A (GB)
Title: Suction catheter
IPC: A61M1/00
Filed: 1975-10-22
Abstract: 1511547 Catheters SHERWOOD MEDICAL INDUSTRIES INC 22 Oct 1975 [25 Oct 1974] 43391/75 Heading A5R A suction catheter 10 for tracheobronchial and nasopharyngeal suctioning, comprises a flexible tube 12 having a lumen 18 therein, the tube having an open distal tip 20 and a proximal end adapted to place the lumen in communication with a source of suction, an eye 24 in the proximal end permitting regulation of the applied suction by placing a finger over or removing it from the eye, a plurality of axially extending ribs 26 spaced around the distal end of the tube and defining alternate raised and depressed surface portions, and at least one aperture 30 in each of the depressed surface portions 28 and extending through the wall of the tube into the lumen. The tube may comprise polyvinyl chloride, natural or synthetic rubber, polyethylene or nylon. The distal end of the tube may taper radially inwardly so that the raised and depressed surface portions are radially below the normal outside diameter of the main tube, or the distal end may be enlarged so that the ribs extend radially beyond the main tube and the depressed surface portions may then be co-extensive with the outside diameter of the main tube. Alternatively, the distal end of the tube may be coextensive with the normal outside diameter of the main tube portion, the depressed surface portions extending radially below the outside diameter of the main tube portion. The lengths of the ribs are greater than the diameter of the main tube portion.
Patent GB-1480931-A (GB)
Title: Methyl alkyl silicone thermoconducting compositions
IPC: C08K3/22
Filed: 1974-10-08
Abstract: 1480931 Heat-conductive greases GENERAL ELECTRIC CO 8 Oct 1974 [18 Dec 1973] 43586/74 Heading C4X [Also in Division C3] An electronic heat-sink grease comprises (i) a methyl alkyl polysiloxane wherein each R is a C 4-16  alkyl radical and (ii) BeO, ZnO, MgO, SiO 2 , TiO 2  or Al 2 O 3  in amount sufficient to provide a penetration value of not more than 350 when measured according to ASTM Test 217D. The thickener (ii) will normally exceed 65 wt. per cent of the composition and the grease will desirably have a thermal conductivity of at least 0À4 BTU/hr/ft<SP>2</SP>/ F./ft when measured by a hot wire test. In the Examples methyl alkyl polysiloxane liquids are milled with sufficient ZnO (82-88 wt. per cent) to give a penetration of 250, the alkyl groups being butyl, hexyl, octyl, decyl and tetradecyl; the octyl siloxane is milled with 77-88% ZnO to give penetrations of 250-350.
Patent GB-1079667-A (GB)
Title: A draught excluder for use beneath doors
IPC: E06B7/23
Filed: 1964-10-26
Abstract: 1,079,667. Door bottom seals. F. G. STOW. Oct. 26, 1964. No. 43652/64. Heading E1J. A door-bottom seal and draught excluder comprises a strip like member having tubular resilient spaced parallel barrier portions 1a having a diameter of at least one inch and each being integral with a web portion 2a which is adapted to pass beneath a door with which it is to be used, with the barrier portions one on each side, the tubes being filled with soft granular material such as sand 4 or soft padding material. One end of the tube may be closed and the other closable after filling. The tubes may be formed by scrolling over the two side portions of e.g. a leather cloth sheet on to the web portion or formed e.g. by extrusion of soft plastic material.
Patent GB-1016232-A (GB)
Title: Liquids and solids mixer
IPC: B01F25/74
Filed: 1961-12-07
Abstract: 1,016,232. Centrifugal mixing - apparatus. J. F. A. MEYER. Feb. 27, 1963 [Dec. 7, 1961], No. 43783/61. Heading B1C. Fluent materials fed into rotating feed tubes 1, 2 of a continuous-discharge mixer are projected by centrifuge plates 3, 4 on to the same region of a stationary or rotating drum 23. Scrapers 22 rotate more slowly than the plates 3, 4. The material falls on to a moving belt or a receptacle. An impeller 13 with blades inclined to the vertical and rotating faster than the plates 3, 4, or a spring-loaded platform 25, Fig. 3 (not shown) on which a minimum depth of material must rest before it can escape through ports 6, may be provided. Vertical rods may hang from a guide cone 7 to prevent solids from packing. The apparatus may be of brass, stainless steel or plastics, and metal surfaces may be plastics coated. The mixer may be enclosed. In a further embodiment (Provisional Drawings, not shown), the materials are projected by a pair of downwardly and outwardly tapering, a pair of horizontal, and a pair of downwardly and inwardly tapering centrifuge plates on to the wall of a cylindrical drum.
Patent GB-968138-A (GB)
Title: Rotary piston engine
IPC: F02B53/00
Filed: 1962-11-20
Abstract: 968,138. Rotary piston engines. BETEILIGUNGS-UND PATENTVERWALTUNGSGESSELLSCHAFT. Nov. 20, 1962 [Nov. 22, 1961], No. 43895/62. Heading F1F. In a rotary piston engine of the trochoidal n and n +1 lobe type a piston 2 is coupled to the output shaft 12 by a train of gears-comprising an internal gear ring 6 attached to the piston, pinions 7, 9 fixed on opposite ends of a hollow rotatable shaft 8 extending through an end wall of a housing 1, a pair of spur gears 11 rotatably mounted on a shaft 10, and a pinion 13 attached to the shaft, the piston being rotatably mounted on an eccentric 14 carried by the shaft. The ring 6, or the pinion 7, may comprise two adjacent portions (not shown) which are rotatable relative to another to minimise back lash. The engine may comprise an additional piston 16 which is coupled to the piston 2 by a train of gears including an internal gear ring 18 attached to the piston 16, pinions 20, 24 fixed to a rotatable hollow shaft 15, and a further internal gear ring 17 attached to the piston 2, an eccentric 23 for the additional piston being in anti-phase to the eccentric 14. The engine may also comprise a third piston (not shown) coupled to the piston 16 by a gear train similar to that between the pistons 2, 16.
Patent GB-1420431-A (GB)
Title: Tool steels
IPC: C22C38/12
Filed: 1971-09-21
Abstract: 1420431 Tool steel DEFENCE SECRETARY OF STATE FOR 21 Dec 1972 [21 Sept 1971] 43955/71 Heading C7A Tool steel comprises:- the balance, apart from impurities, of which 0.2% Si, 0.2% Mn, 0.03% S, 0.02% P and 0.2% Ni appear in the example, being Fe. The exemplary alloy is annealed at 870 degrees and then furnace cooled.
Patent GB-1322259-A (GB)
Title: Antistatic fabric
IPC: C25B11/02
Filed: 1970-09-16
Abstract: 1322259 Pile fabrics; yarns BRUNSWICK CORP 16 Sept 1970 [25 Sept 1969] 44136/70 Headings D1K and D1W In an antistatic pile fabric comprising a base fabric of warp and weft yarns 12, 13, Fig. 5, with which is interwoven a pile yarn 14 which is subsequently cut at the loops 16 the warp yarns, weft yarns and pile yarns each include at least some metal strands. The yarns may be formed of metal filaments, e.g. of stainless steel of diameter 1 to 50 microns, or of staple metal fibres blended with textile fibres such as cotton, wool or plastics, the metal being in a proportion of 1 % to about 100% by weight. The surface of the metal fibres is preferably rough. In a modification the yarns comprise a core of insulating material coated with metal. Fine metal filaments may be produced by forming metal rods 22, Fig. 1 into a matrix 23 and drawing through dies 25 successively until the rods are of filamentary diameter, after which the matrix is dissolved to leave the filaments. The yarns in the completed fabric may be bonded together by adhesive or by sintering, brazing or welding, correct distribution of the yarns being maintained by a sacrificial material such as plastics blended therewith which is removed during the sintering &c process. Alternatively the yarns may be formed as a tow of metallic fibres arranged in a matrix which latter is removed by leaching after weaving. For decorative material the metal may be gold, aluminium or anodized aluminium.
Patent GB-1129700-A (GB)
Title: Draft link construction
IPC: B60D1/06
Filed: 1967-09-28
Abstract: 1,129,700. Tractor hitches. DEERE & CO. 28 Sept., 1967 [28 Sept., 1966], No. 44230/67. Heading A1P. A draft link of a three-point hitch has a detachable ball 14 which is held in position by a key 26 having a recess 30 engaging the ball. The key slides into a groove in the link and is held in place by a spring 34.
Patent GB-1223240-A (GB)
Title: Improvements in and relating to vibration generators
Inventor: BORSUTZKI EBERHARD
IPC: B06B1/16
Filed: 1969-09-10
Abstract: 1,223,240. Vibrators. E. BORSUTZKI. 10 Sept., 1969 [13 Sept., 1968], No. 44616/69. Heading F2X. A vibrator particularly for soil compacting machines has a crank pin 13 carrying an eccentric mass 18 and rotatably journalled in the arms of a driven shaft 7, 8. The pin 13 carries a gear 14 which meshes with a gear 15 of the same diameter and mounted on an adjustable stationary shaft 16 so that the vector of the distance of the centre of gravity of the mass 18 from the axis of the shaft 7,8 traverses a maximum and minimum off-set by 180 or 0 degrees for each rotation. Rotational adjustment of the shaft 16 rotates the angle of inclination of the resultant unbalanced force. A plurality of pins 13 each carrying an eccentric mass and rotated by the same gear 15 may be provided. The eccentric mass may be mounted on a further crank pin which rotates about the axis of shaft 7, 8.
Patent GB-1349292-A (GB)
Title: Prefabricated building elements
IPC: E01D21/10
Filed: 1971-09-24
Abstract: 1349292 Casting concrete structures VAN HATTUM EN BLANKEVOORT NV 24 Sept 1971 [25 Sept 1970] 44655/71 Heading B5A In a method of building a concrete structure, e.g. a bridge or tower, comprised of a number of moulded prefabricated elements joined together, the elements are arranged or aligned in the position that they will take up in the finished structure, some of the elements being shorter than their final desired lengths and spaced from adjacent elements by a distance such that when mortar is supplied to such spaces, surrounded by mould surfaces, the shorter elements are finally formed to their desired lengths. Surfaces of those adjacent elements which are not to be lengthened are covered by a release agent whereby, after the mortar has hardened, the elements are separated for re-assembly on site. When building a tower composed of moulded elements 26-28, 43, one end of each of the elements 26-28 is not cast but has reinforcement extending from that end. They are appropriately spaced apart on a floor 44 by distances equal to the lengths of the ends to be cast on; mould surfaces 39, 40 are located about such spaces and supplied with mortar. The surfaces 36 of adjacent elements are covered with release agent. In the embodiment of Fig. 10, for the building of a tower, alternate elements 51H of final desired lengths are positioned adjacent elements 51G which are required to have both ends extended by casting mortar between adjacent elements.
Patent GB-1138342-A (GB)
Title: Control device for automatic cutting machines
IPC: B23Q35/20
Filed: 1965-10-22
Abstract: 1,138,342. Copy-milling. A. SCHMERMUND. 12 Oct., 1966 [22 Oct., 1965], No. 44724/65. Headings B3B and B3K. In a machine tool in which a curve is to be machined on a rotating workpiece 231 a primary cam 201 and follower 213 are provided which control the movements of the tool head 284 of the machine, and in order to produce modified curves means are provided which include a secondary cam 211 rotating in dependence upon rotation of the workpiece, a secondary cam follower 209 which regulates the movements of the primary cam, and a control member 290 adjustably mounted so as to vary the ratio between the movement of the primary cam follower 213 and the movement of the member 290. The primary cam 201 is mounted on an hydraulic cylinder 202, movement of which is controlled by a valve 207. In one embodiment as shown, the linkage from the auxiliary follower controlling the valve 207 is partly hydraulic (valve 248 and cylinder unit 250) and partly mechanical (gears 259 ... 263 and shaft 208). In an alternative embodiment (Fig. 1, not shown), the corresponding linkage is purely mechanical. A further control valve 222 is actuated by a pivotally mounted lever 214 carrying the primary follower and regulates the hydraulically effectuated movements of the tool head 284, the valve 222 being adjustably mounted by means of slides 287, 289. An hydraulically released brake 280 supports the tool head on the post 229 in the event of fall of hydraulic pressure. The work-holder 235 can be adjusted laterally on a slide 234 and is driven together with the cam 211 by a flange mounted electric motor. The milling tool is driven by an electric motor 285. The tool spindle is housed in a tubular member (308, Fig. 4, not shown) adapted to be fed forwards by a rack (309) and pinion (310) and hand wheel (312), to position the tool.
Patent GB-1482148-A (GB)
Title: Chemical reactors
Inventor: SEGALINI ANGELO
IPC: B01J10/00
Filed: 1974-10-15
Abstract: 1482148 Chemical reactor MONTEDISON SpA 15 Oct 1974 [17 Oct 1973] 44908/74 Heading B1X [Also in Division C3] A chemical reactor in the form of a closed loop comprises a number of sections detachably connected in sequence, the sections comprising a pump for circulating reaction medium around the loop a delivery section having from 5 to 30% of the volume of the reactor, a central section shorter than the delivery section, and a further section leading back to the pump. Unsaturated esters or vinyl monomers e.g. vinyl acetate, may be polymerised in emulsion or in solution in the reactor. Vinyl acetate-ethylene copolymers and vinyl acetateethylene-vinyl chloride terpolymers may also be prepared.
Patent GB-967656-A (GB)
Title: An improved transistor trigger circuit
IPC: H03K3/2893
Filed: 1962-11-28
Abstract: 967,656. Transistor oscillating circuits; keying carrier frequencies. VAN DER HEEM N.V. Nov. 28, 1962 [Jan. 29, 1962], No. 45014/62. Headings H3R and H3T. A circuit comprises a transistor oscillator with its collector connected with its emitter through a feedback network and having an input signal applied as a direct current to its emitter, the arrangement being such that the transistor circuit does not commence oscillating until the input signal exceeds a value which causes the dynamic emitter base resistance to fall below the maximum permissable value for maintaining oscillations in the circuit. The feedback network may comprise a transformer coupling the emitter and collector electrodes or as shown in Fig. 2 a further transistor 6 may be used as the feedback network. When the input signal applied to the " in " terminals in the emitter lead of transistor 1 exceeds a predetermined level the circuit commences to generate sine-wave oscillations and when the input signal falls below the predetermined level the circuit stops oscillating. The trigger level may be adjusted by supplying a reference D.C. or voltage to the emitter of transistor 1.
Patent GB-1392766-A (GB)
Title: Holder for an electromechanical filter
IPC: H03H9/05
Filed: 1972-09-29
Abstract: 1392766 Component assemblies LICENTIA PATENT-VERWALTUNGS GmbH 29 Sept 1972 [29 Sept 1971] 45167/72 Heading H1R [Also in Division H3] A holder for a filter comprising a plurality of transducers and resonators sandwiching a pair of quartz or ceramic discs 1, 2 comprises a screening plate 10 made of two sheets, spot welded together and serving to reduce input to output capacitance, mounted upon a baseplate 12, of conductive material or silver coated, webs 11, 11<SP>1</SP>, see also Fig. 4 (not shown), engaging the edges of the discs 1, 2 to support them, and provide earth connections to resonator and transducer electrodes, the webs being fixed to the discs by conductive adhesive, or solder (18, Fig. 4). A screening can 13, soft soldered or cold press welded to baseplate 12 has a closable opening 19 allowing evacuation of the interior, or its filling with gas. Filter construction.-The filter comprises a pair of sub-filters connected in series, each mounted on one of the discs and comprising input, and output electrodes (3, 6; 4, 7), Figs. 1, 2 (not shown) and intermediate resonators with electrodes (5, 8), all the resonator electrodes being connected to earth. All non-earthed electrodes (3, 4, 6, 7) are mounted on sides of the discs remote from the screen 10, in a recess of which is supported shunt capacitor 9. Conductive paths 17, 17<SP>1</SP> are provided on the discs between electrodes, those apertaining to electrodes (3, 4), 6 and 7 being directed to the edge of the respective disc adjacent the baseplate 12. The angular displacement between the plane of the screening plate 10, and major axis of baseplate 12 is stated to increase the decoupling between the input terminal 15, and the output terminal 16. An earth terminal 14 is provided. The filter is used as an I.F. filter, at specified frequencies, for radio telephone communication.
Patent GB-1088997-A (GB)
Title: Solvent recovery
IPC: C08J11/02
Filed: 1964-11-06
Abstract: 1,088,997. Purifying polymer wash solvent by distillation. EASTMAN KODAK CO. Nov. 6, 1964 [Nov. 7, 1963], No. 45244/64. Heading B1B. Wash solvent, e.g. a lower aliphatic alcohol, is recovered from a wash product containing polymer insoluble in the solvent by contacting the product in a column 16 with the vapours of a high-boiling hydrocarbon, which is a solvent for the polymer, vapourized in a heat exchanger 10, whereby the wash solvent is vaporized, and the polymer dissolves in condensate of the hydrocarbon. The hydrocarbon may be a mineral oil boiling from 140‹ to 210‹C. The polymer, catalyst residues and waxes entrained in the condensed hydrocarbon flow back into the exchanger 10 and are withdrawn through 32 and fed to a boiler 36. In the 'boiler the polymer and waxes are melted and the hydrocarbon is vaporized and cycled back to the exchanger. Make-up hydrocarbon is fed through conduit 42. Wash solvent vapours leaving through conduit 20 are condensed at 24 and may be fed back through inlet 30 for refluxing. The wash solvent may be a lower aliphatic alcohol such as isobutyl alcohol, methanol, and isopropanol. The polymer may be polypropylene.
Patent GB-1166462-A (GB)
Title: Variable Resistor and method of making same
IPC: H01C10/32
Filed: 1966-10-12
Abstract: 1,166,462. Variable resistors. SPECTROL ELECTRONICS CORP. 12 Oct., 1966 [2 Nov., 1965], No. 45696/66. Heading H1S. The rotor 41 of a variable layer or wire resistor includes a resiliently deformable part 51 extending into engagement with a shroud 61 to seal the internal parts from the atmosphere. The part 51 also urges a conductive contact member 31 carried by the rotor into engagement with the resistance element 21 which is carried on an insulating base 23. The rotor 41, which may be of fibreglass filled plastics, has a protrusion 47 extending through a hole 35 in the contact element 31 and which is heat deformed  to secure the contact element to the rotor. A centre post 25 provides connection to the contact element. Specification 1,166,463 is referred to.
Patent GB-1199624-A (GB)
Title: Movable Tube Flowmeter of Angular Momentum Type
Inventor: SHIBA KAMEKICHI
IPC: G01F1/20
Filed: 1967-10-06
Abstract: 1,199,624. Measuring fluid-flow. K. SHIBA. Oct. 6, 1967 [Oct.14, 1966], No.45735/67. Heading G1R. In a fluid-flow meter in which a main tube 1, connected to stationary inlet and outlet pipes 2, 3 by flexible joint elements 4, 5, is oscillated about a fixed point O in response to the angular momentum of the fluid passing therethrough the fluid flow-rate is obtained by measuring one quantity such as (P A -P), (P E -P) and T and providing means for cancelling the remaining quantities except the one being measured. The meter operates according to the following equation:- Where R A  = Distance from O to fixed outlet A axis. R E  = Distance from O to fixed inlet E axis. S E  = Cross-sectional area of inlet E. S A  = Cross-sectional area of outlet A. S<SP>*</SP> E  = Effective cross-sectional area of flexible joint 4 at inlet. S<SP>*</SP> A  = Effective cross-sectional area of flexible joint 5 at outlet. P E  and P A  = Fluid-pressures of inlet and outlets, 4 and 5. P = Pressure external of tube 1. T = Torque applied external to balance tube 1. p = Fluid density. Q = Fluid flow-rate.
Patent GB-1441648-A (GB)
Title: Tape transport apparatus
IPC: G11B15/295
Filed: 1973-10-01
Abstract: 1441648 Feeding record tapes AMERICAN VIDEONETICS CORP 1 Oct 1973 [13 Oct 1972] 45742/73 Heading G5R A spring 46 presses supply and take-up rolls 24, 26 equally against a rotary drive body 22, and further pressure is applied to the take-up roll by a selected one of a pair of springs 39, 43. As shown, a slider 42 which controls the direction of tape drive also frees the spring 39 or 43 acting on the take-up roll from a restraining edge of a notch 41 or 44.
Patent GB-1375368-A (GB)
IPC: D06P3/32
Filed: 1971-10-04
Abstract: 1375368 Phenolic azo dyestuffs PECHINEY UGINE KUHLMANN 4 Oct 1971 [5 Oct 1970] 46004/71 Heading C4P [Also in Division D1] Novel dyestuffs of the formula (wherein each X is H or each is OH; R 1  and R 2  are each H, OH, alkyl or aryl; R 3  is H, alkyl or aryl; Z is H or a substituent; n is zero or 1; and A is the residue of a diazo component containing at least one SO 3 H or CO 2 H group, the group A-N = N- being ortho to an OH group) are prepared by conventional coupling methods. They may subsequently be converted to novel nitroso derivatives and these dyestuffs or their precursors may subsequently be oxidized to further novel dyestuffs or converted to metal complex dyestuffs. All these compounds may be converted to salts with an amine or a quaternary ammonium salt. All these dyestuffs are used for dyeing leather.