baber/WOPTO huggingface dataset:
Patent GB-1357588-A (GB)
Title: Overhead door closing mechanisms
IPC: A62C2/12
Filed: 1971-09-10
Abstract: 1357588 Door holders; remote-controlled fastenings EATON GmbH 10 Sept 1971 [10 Sept 1970] 42346/71 Heading E2A An overhead door closing mechanism comprises a pair of rod arms 12, 13 connected at a common rotary joint 14, a keeper member 25 clamped to one of said arms, at said common rotary joint, a bolt 13 movably mounted in the other of said arms and cooperable with said keeper member and an electromagnet 19 carried by said other arm and which on excitation causes the bolt to be held a position in which it restrains relative movement of the two arms. In the construction shown, the bolt includes a roller 29 which engages a notch 28 in the keeper in the restraining position. The keeper is disposed between the two arms and it is clamped to the arm 12 by tightening a nut 17 on a pivot bolt 18 which forces a shoulder of the bolt into engagement with the keeper member and clamps it to the arm 12 in any desired position. The bolt is normally held in engagement with the keeper member by a lever 35 which is pivotally mounted on the arm 13 and biased into engagement with an end portion 32 of the bolt by a spring 37; the spring also holds the lever into engagement with the core 38 of the electromagnet; however, the closing spring of the door closer 10 is sufficient to overcome the force of the spring 37 and hold the door closed unless the electromagnet is energised in which case the energisation prevents the pivotal movement of the lever 35 against the bias of the spring 37 which is necessary before the door can close. The electromagnet can be in circuit with a smoke or fire alarm which breaks the circuit of the electromagnet in the event that smoke or fire is detected in which case the door automatically closes.
Patent GB-1214322-A (GB)
Title: Fluid mixing, moving and a tomizing methods and apparatus
Inventor: SMITH MILLARD FILLMORE
IPC: B01F23/30
Filed: 1967-09-18
Abstract: 1,214,322. Suction dredgers. M. F. SMITH. 18 Sept., 1967 [19 Sept., 1966], No. 42441/67. Addition to 1,111,723. Heading E1F. [Also in Divisions B1, B2, B8, C7, Fl and F4] In modifications of the injection mixing apparatus and process of the parent Specification 1,111,723, the inlet end of the mixing chamber is open across the full cross-sectional area, and/or the intake fluid is agitated in the region of the intake portal by jets of pressure fluid. An apparatus Fig. 3, in which the pressure fluid may be gas or liquid and the intake material a granular or pulverulent material has a pressure fluid supply conduit 13 and a mixing chamber 11 with an open lower end forming an intake portal 15; the apparatus may be suspended by lifting ears 21 with its lower end in the intake material. A ring manifold 22 has a plurality of pressure fluid jets 24 to agitate material in the neighbourhood of the intake putel 15 and additional jets 27 agitate the mass of material. Another embodiment, Fig. 5, has a pressure fluid chamber 33 and mixing chamber 34, and an intake conduit 47 with a ring of converging jets 52 at its entrance. Examples relate to dredging, removing sand below or above sea-level, and conveying wheat and plastic granules. Examples of dimensions and performance for various applications are given. By suitable choice of dimensions standing sonic waves may be set up in the mixing chamber and helical or vortex flow patterns produced.
Patent GB-924980-A (GB)
Title: Flocculating apparatus
Inventor: TURNER GEORGE GARNHAM
IPC: C02F1/52
Filed: 1961-11-28
Abstract: 924,980. Agitating liquids. DORR-OLIVER Inc. Nov. 28, 1961, No. 42519/61. Class 86. [Also in Group I] Apparatus for agitating a liquid or a suspension comprises a tank having a number of parallel horizontal ribbon-like agitating members 15, which may be slats, bars, ropes or the like, and which can be vertically reciprocated. As shown, the agitators are carried on crossbars 18a, 19a suspended from arms 16, 17 oscillated on shafts 18, 19 by a double-acting hydraulic jack 24. The members 15 are tensioned as by a turnbuckle 23 and are arranged in the direction of flow of the liquid between the inflow 11 baffled at 12 and the outflow weir 13 to a settling tank 14. The members 15 may be twisted at their outflow ends to reduce the agitating effect, see Fig. 3 (not shown). Instead of being tensioned they may hang in a catenary and scrape the bottom of the tank, see Fig. 4 (not shown); they may have attached scraping members, see Fig. 5 (not shown). They may be raised clear of the liquid to the chain-dotted position of Fig. 1. Additional ribbon members 33 may extend between the bars 18, 18a to increase mixing when a chemical flocculating agent is added to the inflow, and similar members between the bars 19, 19a to raise the flow towards the weir 13. There may be a sludge sump 35. In an alternative arrangement, the ribbon members are transverse to the direction of flow and are adjusted to give maximum agitation at the influent end, progressively decreasing in the direction of flow. The apparatus may be used for treating sewage.
Patent GB-900878-A (GB)
Title: Blast finishing machine
IPC: B22D29/00
Filed: 1959-12-15
Abstract: 900,878. Blasting machine. BELL INTERCONTINENTAL CORPORATION. Dee. 15, 1959 [May 7, 1959], No. 42554/59. Class 60. [Also in Group XXVI] A machine in which particles are projected in a 8 chamber .against a workpiece particularly for surface treatment thereof and the chamber has an opening sealed against the escape of such particles, includes sealing means comprising magnet means disposed adjacent the opening and operable to project a magnetic field arresting magnetic particles moving into the magnetic field to form a seal. Permanent magnets 24, Fig. 1, are positioned above and below the openings in the end walls of a housing 10. The magnetic field .thus established therebetween attracts and tends to acerete across each opening a wall .composed of ferrous particles thrown by a centrifugal wheel 12, the wall permitting the passage therethrough of a workpiece. A hopper 14 feeds .particles to the wheel and also to a hopper 30 whence they trickle across the outer face of the seal to maintain it, any surplus being received in a trough 34 and passed into the housing 10. A similar trough 36 receives particles carried out of the housing by the workpiece. In a modification, Fig. 2, the discharge end wall 40 has secured thereto by bolts 44 a magnet assembly 42 comprising permanent ceramic bar magnets 50. The end wall 46 of the magnet assembly has an opening 47 sized and shaped to suit a particular type of workpiece, interchangeable magnet assemblies being provided, and the end wall 40 of the housing having an opening 41 suitable for the largest workpiece to be treated. The workpiece is demagnetized as it emerges by a coil 62 energized by A.C. In a further modification. Fig. 5, an access opening ,in the wall 72 of .the .housing is surrounded by a permanent magnet 75 and particles caught in the field form a seal for a cover 74.  In a further modification. Fig. 6, a workpiece 82 is treated by a travelling machine, seals being formed by particles caught by the field of magnetic rollers 92, 92. Non-magnetic belts 96, 96 tend to drag the particles into the housing as it is moved along the workpiece. In a further modification. Fig. 7, permanent magnets 100 encircle its opening of a housing 85 so that particles accrete at 102.  In a further modification. Fig. 8, a blasting machine 115 is mounted on a base 116 slidably mounted on a trackway 120 so that it can be moved to project different distances into a workpiece chamber having walls 110, 112. The machine 115 is housed within an abrasionresistant housing 122 telescopically fitting within a complementary shaped opening in the wall 110, and a series of permanent magnets 125 is disposed perimetrically of the opening.
Patent GB-1502578-A (GB)
Title: Electrical slide switch
IPC: H01H15/06
Filed: 1976-10-14
Abstract: 1502578 Mechanical switches AMF Inc 14 Oct 1976 [9 March 1976] 42749/76 Heading H1N An electrical slide switch assembly comprises stationary contacts 20a-22a extending from one surface of a base member 25, a plastics slide member 10 carrying a movable contact 16 and having on each side at least one yieldable skirt 30-35, a barb 40-43 on the lower end of at least one of the skirts 30-35 slidably engaging the lower surface of the base member 25 and a boss b 1 , b 2  which is provided on one of the base mem - ber 25 and a yieldable skirt 30-35 and which is received, when the switch is in one of its switching positions, in boss receiving means provided on the other. In one embodiment, each side of the slide member 10 is provided with spaced skirts 30-35, the end ones of which 30, 32, 33, 35 have at their lower ends barbs 40-43 which slidably engage the underside of the base member 25. The slide member is retained in one of two switching positions by bosses b 1 , b 2  on the side edges of the base member 25 received in V-shaped notches formed between two adjacent skirts. When the slide member 10 is moved to the other switching position, the middle skirts 31, 34 are urged outwardly by the bosses b 1 , b 2  which are then received between the other two adjacent side skirts. In each switching position, a generally U-shaped contact 16, whose two arms are each divided into two portions (18, 19) (Fig. 3, not shown) makes contact with stationary blade contacts 20a-22a. In another embodiment, the bosses (91, 92) (Fig. 6, not shown) are provided on the middle skirts (81, 84) for engagement in notches (67, 68) provided in the sides of the base member (25<SP>1</SP>) the portions (71- 74) leading away from the notches (67, 68) being inclined. The switch may be multi-polar.
Patent GB-1103922-A (GB)
Title: Improvements in or relating to gas lift valve mechanisms in or for wells
IPC: E21B43/12
Filed: 1965-10-08
Abstract: 1,103,922. Raising liquid. McMURRAY OIL TOOL SPECIALITIES Inc. Oct.8, 1965 [Oct. 9, 1964], No.42789/65. Heading F1R. A gas lift valve assembly concentric with the well tubing comprises a valve member 17 actuated by a bellows 18 through a transversely movable ring member 24. Bellows 18 is connected to a gas chamber 22 at a predetermined pressure. The surface areas of valve member 17 and bellows 18 are such that the valve opens when the lift gas pressure surrounding the valve housing.reaches a predetermined value. Valve member 17 is not attached to ring 24 and can act as a check valve. Two valve assemblies may be connected to a common pressure chamber 22, Fig. 6 (not shown). In another embodiment, Fig. 7 (not shown), the valve member opens outwardly of the valve housing and is coupled to an actuating diaphragm or piston by a ring surrounding the housing, a separate check valve being provided. In another embodiment, Fig. 8 (not shown), the valve member and actuating diaphragm are axially disposed in the housing and linked by a pivoted lever, a check valve being carried by the valve member.
Patent GB-896329-A (GB)
Title: Improved transport mechanism for longitudinally-moved elongated record members
IPC: G11B15/60
Filed: 1960-12-13
Abstract: 896,329. Electric correspondence control systems; guiding record tapes. FERNSEH G.m.b.H. Dec. 13, 1960 [Dec. 15, 1959], No. 42817/60. Classes 40 (1) and 40 (2). Apparatus for correctly adjusting lateral guides for, e.g. a moving cinematographic film in accordance with variations in width comprises electrical means for measuring the width upstream of the guides to obtain a control voltage for a motor making corresponding adjustments to the distance between the guides. As shown (Fig. 1) the width of a travelling film 1 is measured between a fixed cheek 4 and a movable cheek 5 biased by a spring 6, producing a proportional capacitance between fixed electrode 8 and movable electrode 7 attached to the movable cheek 5, which determines the frequency of an oscillator 9, whose output is fed through a discriminator 10 to produce a D.C. voltage energizing a motor 11 to make the appropriate adjustment to a movable guide 3 co-operating with fixed guide 2. The discriminator 10 comprises a high and low-pass filter in parallel, having a steep output voltage characteristic about the nominal width frequency, and producing lower control voltages of the correct polarity with large frequency differences. Delay times of different values for increases and decreases in width may be introduced after the discriminator 10.
Patent GB-1446618-A (GB)
Title: Film pull-down mechanism for motion picture apparatus
IPC: G03B1/22
Filed: 1973-09-12
Abstract: 1446618 Film feed mechanism EASTMAN KODAK CO 12 Sept 1973 [12 Sept 1972] 42899/73 Heading G2E A film pull down mechanism comprises a claw 22 which is driven by a face cam 42 to intermittently engage the film, a ratchet 78 rotatable about a shaft 76, a pawl 84 coupled to a cam 80 and movable into engagement with the ratchet so that when the pawl and ratchet are engaged cam 80 is driven synchronously with cam 42 and a plate 96 coupled to and positionable by cam 80 for holding the claw to prevent it engaging the film. For prolonged projection of a single frame a catch 110 projects into the path of the pawl 84 and disengages it from the ratchet, thus preventing further rotation of the cam 80 at a point at which the plate 96 is positioned to prevent the claws engaging the film. To move the film by one frame, a bracket 120 is moved to the left and pushes catch 110 out of engagement with pawl 84. The pawl re-engages the ratchet to rotate cam 80 and move part 96 away from the claw which engages the film and moves it on one frame. The cam 80 also pushes bracket 120 down out of contact with catch 110 which is urged back into a position where it re-engages the pawl after one rotation. In the embodiment shown two film claws are provided and the plate 96 carries two tabs 96a and 96b which move shafts 64, 66 into engagement with tabs 68, 70 provided on the claws to hold them out of engagement with face cam 40. The catch 110 is pivotally mounted on a slide 50 and is only moved into a position in which it obstructs the pawl when the slide 50 is moved to the position for single frame projection. The bracket 120 which disengages the catch from the pawl is slidably mounted and controlled by a rod 134 connected to a toggle 138, the toggle being moved anti-clockwise about a pivot to move the bracket to the right and disengage it from the catch.
Patent GB-972808-A (GB)
Title: A method of fabricating a dynamoelectric machine rotor
IPC: H02K1/28
Filed: 1962-11-14
Abstract: 972,808. Making dynamo-electric machines. GENERAL ELECTRIC CO. Nov. 11, 1962 [Nov. 24, 1961], No. 43065/62. Headings B3A and B3V. [Also in Division H2] The squirrel cage rotor core 15 of a dynamoelectric machine is fixed to shaft 18 by applying to the shaft a layer of unhardened adhesive thermosetting resin 20a, heating the rotor core so that the bore expands and can be positioned correctly against thrust member 21 in the supporting jig 46. The heat of the rotor core is sufficient to initially soften the resin and then harden it so that as the box contracts an interference fit occurs between the hardened resin and the rotor core and the latter is secured to the shaft. By using a thixotropic epoxy resin an adequate thickness is maintained to retain the core and the small amount of leakage is used to secure thrust member 21. The thrust member at the opposite end of the core is secured by placing a bead of resin around the shaft and inverting the assembly in the jig to position the parts correctly. The rotor core laminations are secured together at their periphery by the die-cast rotor winding 64 and adjacent to the bore by the adhesive resin which is effectively squeezed between the laminations.
Patent GB-1018859-A (GB)
Title: Method for dewatering aqueous sludges
IPC: C02F11/121
Filed: 1964-10-22
Abstract: Aqueous sewage sludges are dewatered with water-soluble, cationic polymers and loaded on to filters to a depth greater than 0.6 metres. Exemplified polymers are alkyl ammonium salts of monomers N-vinylpyridine, allyamine or acrylates and methacrylates; vinyl polymers of acrylamide, acrylonitrile, oxazolidinone and pyrrolidinone &c.  Preferred polymers are polyethyleneimines and their salts.ALSO:Aqueous sludges, raw or digested, are treated with a water-soluble, cationic, organic polymer containing a plurality of hydrophilic cationic groups and the treated sludge is loaded on to a sand filter to a depth greater than 0,6 metre.
Patent GB-1446863-A (GB)
Title: Electric stepping motors
IPC: H02K37/16
Filed: 1972-09-18
Abstract: 1446863 Electric motors SANGAMO WESTON Ltd 12 Sept 1973 [18 Sept 1972] 43216/72 Heading H2A A stepping motor such as that disclosed in Specification 1,287,292 includes a magnetic biasing system fixedly mounted adjacent the rotor such that the rotor is moved through a certain angle when the stator winding is energized and then, when the winding is de-energized the rotor moves through a further angle in the same direction under the influence of the magnetic biasing system. The magnetic bias may be provided by one or more cylindrical permanent magnets 76, Fig. 4 (not shown) concentric with the rotor axis, by a single bar magnet 80, Fig. 5 (not shown) with one pole adjacent the rotor surface, or by an arcuate permanent magnet 82 whose ends are separated by the same angular distance as adjacent rotor poles. In all embodiments, the poles of the biasing system are offset from the poles of the rotor when the latter is in its rest position. The motor forms part of a remote register electrically connected to an electricity meter. The motor stator winding receives constant polarity direct current from a bridge rectifier 36, Fig. 1 (not shown) connected to the mains through an ON-OFF switch (32). The switch is opened and closed once for each unit of electricity consumed.
Patent GB-1444431-A (GB)
Title: Gasoline composition
IPC: C10L1/18
Filed: 1973-09-14
Abstract: 1444431 Treating gasoline SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 14 Sept 1973 43290/73 Heading C5G The octane rating of a gasoline which is substantially free from organo metallic antiknock additive(s) is trimmed by addition to the gasoline of a minor amount by weight of an aromatic compound which contains an ester group derived from a phenolic hydroxyl group and a carboxyl group. The hydroxy group may be derived from phenol, various alkyl and alkoxy phenols and naphthols. The carboxyl group may be derived from carbonic acid, formic acid, oxalic acid, malonic acid, succinic acid, adipic acid, benzoic acid and azodicarboxylic acids. The gasoline may also include anti-oxidants, metal deactivators, anti-icing agents, antirust agents, corrosion inhibitors, detergents, e.g. polyalkenyl polyamines, and compounds which reduce exhaust valve seat wear, e.g. cresyl diphenyl phosphate.
Patent GB-1449884-A (GB)
Title: Instrument for measuring propagation time of ultrasound through  tested substance
IPC: G01N29/07
Filed: 1973-09-18
Abstract: 1449884 Measuring by ultrasonic waves INST ELEKTRO IMENI E O PATONA AKADEMII NAUK UKRAIN SSR 18 Sept 1973 [16 Jan 1973] 43674/73 Addition to 1429020 Heading H4D For enabling measurement of propagation time of ultrasonic waves in a specimen 3 when both sides thereof are not available for placement of ultrasonic transducers, or, when such velocity is known, physical or chemical characteristics, a pulse generator 1 is initially triggered by a "force-trigger" unit 8, a single transmitreceive transducer 2 is utilized, a switch 4 causes transmitted pulses to be excluded from an amplifier 5, the echo pulse train from repeated bounces across length l is fed to amplifier 5 to disable unit 8 and after detection, 6, is fed to a pulse counter 7 the output from which triggers generator 1, and the counter is reset by each pulse transmitted by the transducer. In the embodiment the fourth echo pulse counted triggers generator 1, Fig. 2 (not shown).
Patent GB-1080928-A (GB)
Title: Electrically operated valve actuator
IPC: F16K31/04
Filed: 1964-10-29
Abstract: 1,080,928. Flameproof housings. ROTORK ENGINEERING CO. Ltd. Oct. 29, 1964 [Dec. 20, 1963], No. 44195/64. Heading A5A. [Also in Division H2] An electrically operated valve actuator having a housing with one or more openings therein is rendered flameproof by surrounding each opening by a smooth, finished,. cylindrical surface (either internal or external) and providing closure means for each opening which comprises a cylindrical extension having a complementary, finished surface that snugly and slidably engages with the cylindrical surface around the opening(s) and a bubble-tight seal (e.g. of the O-ring type) provided along the joint between the cylindrical surfaces or between complementary planar surfaces on the housing and closure means, the clearances between the planar surfaces being sufficiently small and the lengths of the complementary surfaces being sufficiently great that gases ignited within the housing are cooled to a temperature below that necessary to support combustion thereof before completing flow through the clearances. In the embodiment described, a valve actuator comprising an electric motor 50, drive means 40, 44, 45, 46 and 48 and limit switch 62 (actuated by axial movement of the drive shaft 48) are enclosed within a housing in which openings are closed by closure means (80, 94, 110 and 22a) and seals (90, 104, 116 and 36a) according to the invention.
Patent GB-1196925-A (GB)
Title: A Method of and an Apparatus for forming Tucked-in Selvedges in the Manufacture of Fabrics on Looms in which the Weft Supply remains Outside the Shed during Operation
Inventor: CUJAI JOHANN
IPC: D03D47/48
Filed: 1967-09-28
Abstract: 1,196,925. Shuttleless looms. SULZER BROS. Ltd. 28 Sept., 1967 [12 Oct., 1966], No. 44249/67. Heading D1E. In a dummy shuttle loom a weft 26" projects from both sides of the shed and is clamped at both sides after beat up and the ends are either tucked into. the next shed or cut off later. If the weft is to be tucked in the clamp 28 move downwardly to present the weft to a hooked needle 30. If the wefts are to be left projecting a finger 34 moves down before the needle arrives to push the weft ends below the needle book so that when the clamp 28 subsequently moves down it continues to move below the needle. The finger 34 may be controlled by the heald frames of from the stay.
Patent GB-863206-A (GB)
Title: Fluid cooling device for fluid coupling reservoirs
Inventor: BECKER JOHN EDWARD
IPC: F16D33/18
Filed: 1959-12-30
Abstract: 863,206. Hydraulic couplings. ROBSON, C. Dec. 30, 1959, No. 44284/59. Class 69 (2). An hydraulic coupling comprises an air passage space 25 between a casing 24 and a reservoir 3 which rotates with the coupling and has an end wall 21 remote therefrom, a plurality of heat-dissipating fins 28, 29 mounted on the outer surface of the reservoir and projecting into the air passage, and means 22 directing the fluid circulation flow within the reservoir along a centrifugally created path 23 across the minor surface of the portion of the reservoir upon which the fins are mounted. The wall 2 of the reservoir is secured to the impeller 5 of the coupling, the turbine 6 of which is secured to an output shaft 8 rotatably mounted in a stationary sleeve 9. The end wall 21 of the reservoir is located on a bearing 10 on the sleeve and on its outer surface carries the fins 28 which are inclined so as to draw air through a plurality of holes 26 into the air passage 25, the air then passing over a second plurality of inclined fins 29 on the wall 2 to air outlets 27. The filling of the coupling and reservoir is controlled by scoop tubes 14, 15 which are adjustable by means of levers 18, 19. The fluid from the scoop tube 15 passes through a passage 20 and is discharged adjacent the end wall of the reservoir, the fluid then being maintained in close proximity to the wall by a dished plate 22 mounted on the sleeve 9 or reservoir. The outward flow of fluid under centrifugal force is retarded by a plurality of holes 34 in the plate 22. In an alternative embodiment, the centrifugal flow of fluid across the end wall is retarded by a number of baffle plates 30, Fig. 3, whereby pockets of fluid are formed, the plates having a plurality of small orifices 32 to permit flow from one plate to the next.