baber/WOPTO huggingface dataset:
Patent GB-1220141-A (GB)
Title: Improvements in butterfly valve assemblies
Inventor: HOUSWORTH GORDON C
IPC: F16K27/02
Filed: 1968-01-12
Abstract: 1,220,141. Valves. FMC CORP. 12 Jan., 1968 [31 Jan., 1967], No. 1776/68. Heading F2V. A butterfly valve comprises an annular cylindrical housing 18, a seat assembly 50 and a valve disc 101, the disc being supported by a lower shaft 120 which is received within the disc in a manner permitting relative rotational and longitudinal movement, and rotatable by an upper shaft 116 which is received within the disc in a manner preventing relative rotational, but permitting relative axial movement. Rotation of the upper shaft is effected by means of a handle 160 having a spring loaded, locking arrangement (166, 167, 168, 169, Fig. 2, not shown), which permits locking of the handle, and hence of the disc, in either of two positions by engagement of a projection (168) of the arrangement with either of two grooves 34 (35, Fig. 1, not shown) formed in a disc 30 constituting the end portion of a neck 25 which is formed integrally with the housing 18 and encloses the upper shaft. The seat assembly 50, as best illustrated in Fig. 8, comprises a resilient annular seat 52 formed as an annular flanged cylindrical member whose outer surface 65 is convex (Fig. 9, not shown), and whose flanges 75 carry sealing beads 76, and a split rigid plastics material retainer 85 whose portions 86 each extend over slightly less than 180 degrees and further have their end portions 89 recessed as at 96 to accommodate, when united with the seat, diametrically opposed radial flanges 78 formed integrally with the seat, which flanges, upon compression of the retainer prior to inserting it into the housing 18, fill the recesses. Flats 55, 68, 91, apertures 60 and collars 69 serve to enhance sealing between the valve disc and shafts and the valve exterior, whilst grooves 99, provided on the outer surface of the retainer segments, facilitate alignment of the same when moulding the seat within the retainer and can subsequently be used to engage projections, if these are provided, on the valve housing (Fig. 9). Seat flanges 75, upon mounting the valve between adjoining flanged pipe sections, serve to seal the valve to the pipes in such a manner that the junction between the seat and adjoining pipe sections is of diameter equal to the seat and pipe sections (Fig. 5, not shown).
Patent GB-523992-A (GB)
Title: Improvements in and relating to rotary drawworks for well and like drilling plant
IPC: E21B3/06
Filed: 1939-01-18
Abstract: 523,992. Well &c. drilling, plant. NATIONAL SUPPLY CORPORATION, and OIL WELL ENGINEERING CO., Ltd. Jan. 18, 1939, No. 1807. Convention date, Jan. 18, 1938. [Class 85] In a rotary drawworks for well &c. drilling plant comprising a drum mounted on a shaft, and a countershaft parallel to the drum shaft and carrying means such as a sprocket adapted to drive the rotary machine, a driving and a driven member are mounted on the drum shaft and countershaft respectively, and clutch means are provided for releasably connecting said members to their shafts for driving either the drum shaft or the countershaft or both. A prime mover 2 drives a line shaft 10 adapted to drive a cat shaft 11 through chain gearing 15 and a clutch 16 on the cat shaft, and also adapted to drive the drum 20 through either of three variable-speed chain transmissions 12, 13, 14, and clutches 17, 18, 19, on the drum shaft; the drive 14 also drives a sprocket 27 on the drum shaft, which sprocket is adapted to drive a low countershaft 21 through chain gearing and a clutch 29 on the countershaft. A sprocket 30, adjustably keyed to the countershaft, drives the rotary table 3 through a chain. An extension shaft 35, carrying a sprocket 33, may be coupled to the countershaft 21 whereby the rotary table, after being moved laterally, may be driven to bore a " rat hole" for support of the Kelly and swivel. A multi-speed drive may be provided for the rotary table. Separate enclosures 38 ... 42 are provided for the various chain transmissions. In a modification, the drive 14, and the drive to the countershaft 21, are arranged between the drum 20 and the drawworks post 7.
Patent GB-1029366-A (GB)
Title: Improvements in and relating to blower wheels
IPC: F04D29/28
Filed: 1964-01-15
Abstract: 1,029,366. Making bladed rotors. TORRING- TON MANUFACTURING CO. Jan. 15, 1964 [Feb. 18, 1963], No. 1830/64. Heading B3A. [Also in Division F1] A blank for use in the manufacture of a centrifugal blower wheel comprises an elongated sheet-metal strip 10, Fig. 1 (not shown), having transversely extending blades 12 cut therein and aligned pairs of dovetail shaped notches 18 in both edges disposed between the blades. The end portions 28 between the notches are bent upwardly to provide perpendicular flanges 32 which are then closed together to reduce the spaces between the blades, by forming U-shaped projections 36. These projections are bent inwardly, Fig. 5 (not shown), the strip is rolled into a cylinder and end-plates 38 are secured thereto by spinning over at 46. The spinning tool may be used to bend over the projections. By clipping off certain projections 36 the wheel can be balanced.
Patent GB-752220-A (GB)
Title: Improvements in torque compensating rotors for aircraft
Inventor: WATSON KENNETH
IPC: B64C27/82
Filed: 1954-01-21
Abstract: 752,220. Aircraft torque compensating rotors. SAUNDERS-ROE, Ltd. Jan. 14, 1955 [Jan. 21, 1954], No. 1841/54. Class 4. An aircraft torque compensating rotor comprises two blades 16 mounted on a driving-shaft 12 by a see-saw hinge 19, and comprises also flexible members 28 extending spanwise on opposite sides of the hinge, and connected at their opposite ends to the blades, said flexible members being undeflected when the blades are at maximum piatch. In Fig. 2, the drive shaft 12 is driven through bevel gears from the main engine of a helicopter, and extends perpendicularly and horizontally from the rail end. Each blade 16 is secured to a root portion 17 formed with a tubular member 18 rotatably mounted on the hub 15 and provided with double levers 27 for pitch change. A push-pull rod 24 extending through the hollow drive-shaft, and having a slot to accommodate the pin 19, bears at its extremity a beam extending along the axis X-X and connected at its ends by rods 26 to the pitch change levers 27, so that reciprocation of rod 24 alters the common pitch of the blades. In addition, the inclination of axis X-X gives a delta-3 effect when the blades see-saw about pin 19.
Patent GB-802023-A (GB)
Title: Improvements in or relating to compositions for use as local anaesthetics
Inventor: EASSON ALEXANDER PETER TAWSE
IPC: A61K31/14
Filed: 1956-01-19
Abstract: A composition for use as a local anesthetic consists of a sterile solution e.g. in sterile water, which may also be isotonic with respect to blood, of a quaternary salt of formula: <FORM:0802023/VI/1> where X is any pharmacologically acceptable anion, e.g. halide or tartrate ion.  Specified quaternary salts are 2-(2 : 4 : 6-trimethyl phenoxy)-1-methyl ethyl dimethyl isopropyl ammonium iodide and bromide.  Specification 765,850, [Group IV (b)], is referred to.
Patent GB-214705-A (GB)
Title: Improvements in the regulation of combustion
IPC: F23N1/02
Filed: 1923-01-22
Abstract: .214,705. Peebles, T. A. Jan. 22, 1923. Indicating.-The combustion of fuel in a steam-generator furnace is controlled by regulating the escape of gases at the stack, effecting a primary regulation of the air supply for combustion in accordance with the demand on the generator, and effecting a further regulation of the air supply in accordance with the pressure of gases above the fuel bed. An indicator is provided which shows by means of a pointer or pointers any change in the rate of flow of air for combustion, in the flow of gases from or pressure in the furnace or in the demand on the generator. In the arrangement shown in Fig. 1, steam from the boiler passes through a pipe 2 to a regulator A, of the kind described in Specification 172,415, [Class 106 (ii), Dynamometers &c.], which actuates through a rod 5 and levers 6, 7, a damper 8 in the stack 9 and through a chain 10 a valve mechanism 12 controlling the admission of steam to a motor 14 driving a fan 15 supplying air through a conduit 16 to the furnace ash-pit. The regulator A is also connected bv a chain 17 to an arm 18 of a rheostat 19 controlling a motor 20 for operating the fuel feeding device 21. Pressure of the gases within the combustion chamber is transmitted through a pipe 22 to a regulator B, of the kind described in Specification 170,683, [Class 51 (i), Furnaces and kilns, Combustion apparatus of], which actuates through a rod 25 a damper 27 in the air-supply conduit 16. In a modification, the regulator A, instead of controlling the speed of the fan, controls a damper arranged between the fan and the damper 27. In order to indicate to the operator the conditions prevailing in the furnace, the regulator A, B, are connected by cords to pulleys 37, 40, Fig. 3, mounted on separate shafts 35, 39 carrying pointers a, b retained in their normal positions relative to a dial by means of springs. The pointers normally stand in a predetermined relation to one another and move in unison when the fuel bed is in proper condition. In the modified form of indicator shown in Fig. 5, a single pointer is employed connected by a cord 50 to a floating lever 47 suspended at its ends from cords leading from the regulators A, B. The cord 50 passes round a drum 51 on which the pointer is mounted and carries a weight.
Patent GB-304332-A (GB)
Title: Improvements in and relating to steam power installations
IPC: F01K3/24
Filed: 1929-01-19
Abstract: 304,332. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts-Ges.). Jan. 20, 1928, [Convention date]. Motor power plant; working-fluid supply; regulating.-In a steam power plant in which a main engine, e.g. a turbine a, is driven with the exhaust from a high pressure auxiliary turbine c or with live steam from low pressure boilers b or with both kinds of steam according to working conditions, the valve i controlling the steam supply to the high pressure engine c is regulated automatically by a device f which is responsive to the back-pressure set up before the main turbine a. The valve k controlling the admission from the low pressure boilers is regulated by a device l which is also responsive to the backpressure. The turbine c is supplied by separate high pressure boilers d, and the admission valve i is further controlled by a regulator h which closes it gradually if the boiler pressure falls. The valve k may be controlled by the pressure regulator f and also by the pressure regulator h. The main turbine is controlled by a centrifugal governor m, and the centrifugal governor n of the turbine c comes into operation only when the admissible speed is exceeded. A further turbine e is provided.
Patent GB-289518-A (GB)
Title: Improvements in hose coupling pipes for the brake installations and heating systems of railway and the like vehicles
IPC: F16L33/34
Filed: 1927-01-25
Abstract: 289,518. Spencer, Moulton, & Co., Ltd., G., and Glascodine, R. T. Jan. 25, 1927. Junction-pieces; joints with yielding outer part compressed. - An externally reinforced rubber coupling pipe for train pipes 4 has the usual metal nipples 1 connected to its ends during manufacture so that the reinforcement 10 of the coupling pipe may extend over said nipples. The coupling is also preferably provided with internal reinforcement 2, while one of the nipples may be formed integral with a coupling head. In manufacture the coil of internal reinforcing wire 2 and the two metal nipples 1, located one at each end of said coil and into which the ends of said coil enter, are positioned on a mandrel, after which a fillet 4 of rubber is wrapped around the junctions thereof. The wire and rubber fillet are next covered by a ply 5 of thin canvas and then a course of rubber 6, extending up to shoulders 7 on the nipples, is wrapped thereover, followed by several further turns of canvas 8 sheeted with rubber. The hose is completed by a layer of rubber 9, the external reinforcing wire 10, a further thin layer of rubber 11; and finally an outer protective canvas cover 12. The whole is then cured in a vulcanizer, after which the ends of the hose are securely fixed on the nipples by clips 13.
Patent GB-561786-A (GB)
Title: Improvements in snap-action electric tumbler switches
IPC: H01H23/16
Filed: 1943-02-10
Abstract: 561,786. Tumbler switches. CRABTREE & CO., Ltd., J. A., MCLOUGHLIN, H. F., and MORGAN, R. W. Feb. 10, 1943, No. 2230. [Class 38 (v)] A tumbler switch has one member e of the spring-toggle, together with the spring d, housed in a bore c in the cylindrical body b of the dolly. The second member g is of stripform and pivoted at f to the enlarged plungerlike part of e and at j in a V-shaped depression h, h<1> in the base i. Lateral wings g<1> engaging the well of the base i and surfaces g<2> at the ends of the slot c<1> in which g works, provide stops for the parts in their extreme positions. The trunnions k of the dolly engage seatings l<3> therein and in plates l having feet for attachment to terminals on the base. The trunnions k are mounted on L-shaped movable contacts x, the ends of which are turned into recesses b<2> on the dolly for co-operating with fixed contacts n, the latter being separated by a rib on the base, in which rib the depression h and slot-like extensions h<1> thereof are formed. A cam m provides a two-stage separating gap as in Specification 529,966.
Patent GB-1253297-A (GB)
Title: Phototype composing apparatus and method
IPC: B41B21/16
Filed: 1969-01-14
Abstract: 1,253,297. Photographic type-composing apparatus. HARRIS INTERTYPE CORP. 14 Jan., 1969 [18 Nov., 1968], No. 2255/69. Heading B6W. In a photographic type-composing apparatus wherein the images of selected characters are formed at appropriate positions on the surface 18 of a cathode ray tube 10 for projection by an optical system 17 on to a sensitive material 20 to form a first segment of a composed line thereon the carriage 25, supporting the sensitive material is movable in a linewise direction to a second position to permit a second segment of a compound line to be projected thereon so that the full width of the sensitive material is utilized. A motor, drives disc 45 and thus crank lever 50 to slide carriage rods 30, 31 in bearings 32, enabling the carriage to be moved into two accurately adjusted positions (shown in heavy lines and dotted, Fig. 7) as determined by stops 60 engaging members 62 and 63. The sensitive material is movable linewise from reel 21 to reel 23 over tensioning rollers 70, 75 and between guide rollers 73, 74 being advanced by sprockets (81, 82, Fig. 5, not shown) which engage marginal perforations. Two cutting blades (97) are positioned before and after the exposure station 22.
Patent GB-321363-A (GB)
Title: Improvements in and relating to meter indicator mechanism
IPC: G06M1/02
Filed: 1929-01-23
Abstract: 321,363. Ferranti, S. Z. de, and Ferranti, Ltd. Jan. 23, 1929. Addition to 281,543. Counting - apparatus.- In meter indicating mechanism of the type described in the parent Specification the supports for the wires or spindles carrying the numeral bearing elements are mounted in slots in a. rigid bar and are secured therein by clinching portions of the support or by soldering. The supports may be formed in pairs each pair from a single metal stamping. In the form shown in Figs. 2, and 3, a rod a of square cross-section is provided with four longitudinal grooves b - - e and is laterally slotted at intervals for the reception of two sets of supporting plates f, g. The plates are held rigidly in position by clinching over the two ends of each plate simultaneously and by deforming the bar to close the slots slightly in the vicinity of the plates. The plates may be secured by soldering them in their slots. In a modified form as shown in Fig. 4, the plates are formed in pairs from a single stamping, one or both being cranked from the centre line x x of the supporting slot.
Patent GB-529572-A (GB)
Title: A gravity controlled switch in association with electric torches
IPC: F21L4/00
Filed: 1940-02-10
Abstract: 529,572. Electric battery lamps. RODWAY, H. G. Feb. 10, 1940, No. 2587. [Class 39 (ii)] A gravity switch in association with an electric torch, to ensure that light cannot issue in an upward direction, consists of two insulating discs 11, 12, Fig. 3, spaced apart by a shaft portion in two parts 13a, 13b separated by insulation 16 and terminating in exterior contacts 14, 15. On the shaft slides a conducting collar 17 adapted when the torch is directed below the horizontal, to slide down and connect together the two parts of the shaft. The switch element is mounted in the torch between the lamp and the battery as shown in Fig. 2, between two cells of the battery or between the rear end and the battery. In a modification the sliding member engages, in the operative position, a terminal of the battery itself
Patent GB-856311-A (GB)
Title: Improvements in fixing clips for fixing hollow ornamental strips on coachwork
IPC: F16B21/08
Filed: 1958-01-27
Abstract: 856,311. Stud and socket fastenings; clips; rivets. RAYMOND, A.V., [trading as RAYMOND DRUCKKNOPF-UND METALLWARENFABRIK, A.]. Jan. 27, 1958 [Nov. 14, 1957], No. 2701/58. Classes 44 and 89(1). A clip for fixing ornamental strips 20 on to coachwork 23 is made of resilient plastics material and comprises a resilient plug-like portion 10 adapted to be inserted in an aperture in the coachwork and a plate-like portion 12 which is connected by a neck 11 with the pluglike portion and which on its face remote from the plug-like portion has two resilient flanges 13, 14 each of which has a chamfered edge-like portion adjacent the plate-like portion so as to engage behind the edges of the ornamental strip when the latter is pressed over them. The plate-like portion is provided with reinforcing strips 19 joining the flanges. The flanges are bent to hook-shapes in sections and the chamfered edges are spaced from the surface of the plate-like portion.
Patent GB-1447752-A (GB)
Title: Process for the production of polymers of vinyl esters
IPC: C08F218/02
Filed: 1975-01-22
Abstract: 1447752 Ethylene-vinyl ester copolymers LONZA Ltd 22 Jan 1975 [28 Jan 1974] 2780/75 Heading C3P Ethylene-vinyl ester copolymers are produced by emulsion polymerization at 20-30‹ C. and an initial pH of 3-4 in the presence of a redox initiator consisting of 0À05-0À5% (based on the vinyl ester) of alkali metal or ammonium persulphate, 0À01-0À05% of ascorbic acid and 10-30 p.p.m. of a ferrous salt wherein at least 50% of the persulphate is present initially and the ascorbic acid and ferrous salt are added at a rate to maintain the temperature within 1‹ C. of the preselected value. Another monomer may be included, exemplified being vinyl chloride, dibutyl maleate, ethyl acrylate and methylol acrylamide.
Patent GB-748693-A (GB)
Title: Improvements in and relating to building units for example panels or slabs of gypsum plaster or other mouldable material
IPC: E04C2/04
Filed: 1952-02-04
Abstract: 748,693. Building panels. FLOWER, S. H., PARSONS, J., LOUDON N. G. W., and BELLROCK GYPSUM INDUSTRIES, Ltd. Feb. 4, 1953 [Feb. 4, 1952], No. 2907/52. Class 87(1). [Also in Group V] A building panel or slab comprises two facings a, e, Fig. 1, of plaster or like mouldable material (or one facing of plaster and one of concrete) the facings being connected by cellforming walls b. The walls are moulded (see Group V) in one with the facing a and are embedded in and 107 mechanically bonded to the facing e. The mechanical bonding is effected by ribs or (as shown) grooves d on the rims of the walls, these grooves being filled with the plaster of the facing e. The cell walls taper towards the facing e (see Fig. 15). The cell ends are concave at a1. Apertures f in the cell walls allow free air communication between the cells. The cells shown are mainly hexagonal, some of the side cells being half-hexagonal and the end cells being part: hexagonal: but all the cells may be half-hexagonal. The edges of the panel are grooved at c1 for the reception of plaster or cement grouting when the panels are placed edge to edge. The facings may be ribbed or grooved to key a facing of Portland cement &c. The plaster of the facing e may be different from that of the facing a and cell walls. Either or both lots of plaster may be plain, or reinforced with wires or wire netting or open mesh vegetable fabric. or mingled with vegetable or mineral fibres. Foamed plaster may be employed for the cell walls and either or both facings. The cells, when formed, may be filled with foamed plaster. The cells may be rectangular, triangular, polygonal, circular or oval. In a modification the facing e may be made of concrete, the rims of the cell walls adjacent this facing being dipped in a mastic or bitumen before this facing is applied thereto (this modified panel being for exterior use). In another modification the facing e may be of plaster or cement combined with a bitumen emulsion or other waterproofing composition so that it is impervious to water. Openings for windows and doors may be provided in the panel. Specification 748,749 is referred to.
Patent GB-434276-A (GB)
Title: Improvements in and relating to electric discharge lamps
IPC: H01J61/073
Filed: 1934-01-29
Abstract: 434,276. Discharge lamps. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London, and SCOTT, W. J., 16, Oval Road, Hillmorton Paddox, Rugby. Jan. 29, 1934, No. 2985. [Class 39 (i)] In vapour discharge lamps having main electrodes operating alternately as anode and cathode, particularly double-walled high pressure mercury-vapour lamps, at least one of the electrodes consists of a wire helix of refractory material of high work-function such as tungsten, one portion of the wire being coated with oxide or other material of low work-function and an uncoated portion of the wire extending a short distance into the arc. A tungsten helix 2, Fig. 1, transverse to the axis of the lamp is coated at the parts 3 and has an enlarged uncoated turn 6. In a modification, a helix 2, Fig. 5, coaxial with the lamp has an uncoated end loop 61. This loop may contain a break 8, produced by fusing a thinned part of the loop 6<1> by a large current after exhaustion of the lamp, the lead 9, then acting as starting electrode. The turn 6 or loop 61 may carry a spike or projection of tungsten.
Patent GB-548388-A (GB)
Title: Improvements in and connected with electric regulators of the carbon pile type
IPC: H02P9/22
Filed: 1941-03-05
Abstract: 548,388. Automatic regulators. STONE & CO., Ltd., J., and NIXON, L. R. March 5,1941, No. 3030. [Class 38 (iv)] [Also in Group XXXVI] A carbon pile regulator 1, Fig. 7 is compressed between an adjustable screw plug 33 and an armature lever 6, pivoted at 25 and biased by a spring 8. A magnet 3 opposes the spring 8. An adjustable stop 39 is initially positioned so as just to touch or just not touch the lever 6 when the magnet is de-energized. Thus should the carbon blocks wear thin or be replaced by new ones, the screw-plug 33 can be adjusted so as to reinstate the original relationship between the lever 6 and the stop 39 and thus readily reinstate the original characteristics of the regulator. Another construction is disclosed in Fig. 4 (not shown) in which the magnet and the carbon pile are in axial alignment. Specification 414,122 is referred to.