baber/WOPTO huggingface dataset:
Patent GB-785471-A (GB)
Title: Improvements in or relating to the control of electrically operated switch frogs in overhead electric traction systems
Inventor: SEPHTON ALBERT
IPC: B60M1/14
Filed: 1955-02-15
Abstract: 785,471. Electrically operated switch-frogs for overhead electric-traction conductors. BRITISH INSULATED CALLENDER'S CABLES, Ltd. Feb. 15, 1956 [Feb. 15, 1955], No. 4501/55. Class 104 (3). For controlling the switch-frogs of overhead electric-traction conductors, in which a pair of solenoids 5, 11 are used to move the tongue in one or the other of two directions the control circuit comprises a pair of paths which extend from the same pole 1 to the other pole 2 of the supply source, each path including a control winding 3 or 9 of a switch 4 or 10 for the respective solenoids 5 or 11, a manually operable switch 6 or 12, and an automatic switch 7 or 13 operated by the switch frog so that one automatic switch 7 or 13 is open when the other 13 or 7 is closed, the two paths being cross connected at a point between the control winding 3 or 9 and the manually operable switch 6 or 12 on the one hand and the automatic switch 7 or 13 on the other hand through a bridging path including a pair of current-responsive indicator devices 14, 15 and this bridging path being connected at a point between the indicator devices 14, 15 to the pole 1 of the supply source. The plunger 8 of the solenoids 5, 11 is mechanically coupled to the switch frog. The indicator devices 14, 15 which may be lamps serving to illuminate one of two direction-indicating arrows are connected to the supply source 1 through a dropper resistance 16. To prevent overheating of a solenoid coil through which current would pass when the manually operable switch is closed with the switch frog already in the required position a current limiter 17 is placed in the bridging circuit to limit the current passing through the winding of the control switch 3 or 9 to a value insufficient to operate the same. The switches 3/4, 9/10 may be electromagnetic but are preferably hot-wire vacuum switches which close in one to four seconds after energization of their respective control windings 3, 9.
Patent GB-289455-A (GB)
Title: Improvements in and relating to driving arrangements for electric motors
IPC: H02K7/14
Filed: 1928-02-13
Abstract: 289,455. Patoul, C. de. April 28, 1927, [Convention date]. Driving- arrangements. - An electric motor adapted to drive a flexible shaft is mounted to allow motion about vertical and horizontal axes. The motor 7 is bolted to a. plate 3 secured to a cross-bar 4 pivoted by trunnions 5 in a yoke 1 carried bv a hook 2. Connection of the flexible shaft may either be made direct to the motor shaft or to an auxiliary shaft 11 which is driven through a belt and stepped pulleys 15, 16 and mounted in ball bearings 10 carried by a casing formed of two parts 9, 8. Vertical and horizontal adjustment between the parts 9, 8 is permitted by vertical and horizontal slots 14, 13 formed in the parts 9, 8 respectively, bolts 12 serving as securing means. Connection between the shaft 11 and a flexible core 17 is effected by a coupling sleeve 18, the sheath 19 of the core carrying a sleeve 20 adapted to be screwed into a sleeve 20<a> secured to the part 9. The sleeve 20 may be thus adjusted to allow for variation in the length of the sheath in relation to the core 17, a lock-nut 21 being provided on the sleeve 20. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a clutch connection for a, tool driven through the flexible shaft arranged to allow the bayonet handle to be rotated to uncouple the clutch without affecting the sheath of the shaft. The tool shaft 22, Fig. 3, is mounted in a bearing 23 carried in the bayonet handle 30 to which is secured a sleeve 28 connected by a screwed ring 34 to a sleeve 33, capable of rotation but not of longitudinal movement in a ring 32 screwed to a second ring 31 secured to the sheath 19. The tool shaft 22 carries a clutch member 24 engaging a corresponding member 25 on a short shaft 26, mounted in ball bearings 27 in the sleeve 28 and connected to the flexible core 17 by a bushing 29 welded to the core. To disengage the clutch members 24, 25, a quarter turn is given to the bayonet handle 30, this movement being allowed by the sleeve 33 without affecting the sheath 19. This subject-matter does not appear in the Specification as accepted.
Patent GB-788973-A (GB)
Title: Improvements in or relating to pneumatic shock absorbers
IPC: F16F9/04
Filed: 1956-02-15
Abstract: 788,973. Pneumatic springs. CONTINENTAL GUMMI-WERKE AKT.-GES. Feb. 15, 1956 [Feb. 16, 1955], No. 4676/56. Class 108(3) A pneumatic shock absorber comprises toroidal hollow rubber member 1 open around its inner periphery and having-reinforcing insertions 19 fixed to beadings 3, and two relatively movable annular members 15, 16, presenting seatings for the respective peripheries of the member 1, sealing being effected by means of pressure acting on the beadings 3 and pressing them against the seatings. As shown in Fig. 2, flexible sealing means 18 may be carried by the face of the beading 2 adjacent the member 15. The means 18 may comprise projections running in the peripheral direction of the beading 2 so as to define troughshaped depressions which have a labyrinth packing effect. In a modification (Fig. 4, not shown), the means 18 may be replaced by a separate rubber ring of circular cross-section which is inserted on the seating of the member 15 before assembly of the member 1. In operation, the seal ring is deformed from its circular cross-section into a flattened configuration. As shown, in Fig. 2. the seating afforded by the member 15 has a radially-extending portion 17. This portion however may be omitted, the main surface 18 continuing for the whole depth of the seating. The member 1 may be shaped in accordance with Specification 493,921.
Patent GB-448954-A (GB)
Title: Improvements in or relating to music stands for use on grand pianos
IPC: G10G7/00
Filed: 1935-02-14
Abstract: 448,954. Music desks. WATTS, W. S., 23, Piercefield Street, Malden Road, London. Feb. 14, 1935, No. 4804. [Class 52 (iii)] [See also Group XI] A music desk D, hinged to a slide A on a grand piano, is provided with hinged electric lamp supports 1 adapted to be swung automatically from an inoperative position behind the desk to operative position when the desk is raised into the open position. The supports 1 are connected by links 4, 8 and intermediate slidable rods 6 to a collar 9 secured to a slidable rod 10 carrying a loose collar 13 connected to a pivoted stay 14 on the slide. The desk is held in the open position by a spring 29 engaging the collar 13. On closing the desk, the collar 13 moves along the rod 10 until it engages the collar 9 and thereby operates the rod to swing the supports 1 into the inoperative position. Lost motion occurs during the opening of the desk until the collar 13 engages a shoulder 12 on the rod when the supports are swung into the operative position. In a modification, a single central lamp support is hinged to the upper edge of the desk, or to a pair of vertical arms thereon, and is connected at each end by a link and lever to the collar 9, the levers being provided with elongated pivot holes to allow for longitudinal movement. The pivot for the stay is also slidable in slots. A lamp switch 26 may be mounted on the back of the desk and operated by a hinged link 28 on the slide, the link having a slot engaging the switch lever 27 to provide for lost motion.
Patent GB-853977-A (GB)
Title: Improvements in systems including slipping coupling means between a driving shaft and a driven shaft
IPC: H02P29/00
Filed: 1957-02-12
Abstract: 853,977. Automatic speed control systems; electromagnetic brakes. ETABLISSEMENTS LABINAL. Feb. 12, 1957 [Feb. 15, 1956], No. 4805/57. Classes 35 and 38 (4). An arrangement for driving at a constant speed a machine 3, Fig. 1, which may be an alternator, from a machine or engine 1 comprises a differential gear 4 which may be any of the arrangements, Figs. 2-6 (not shown),having two elements coupled respectively to the two machines and a third element coupled to an eddy current braking device 2, the brake torque being roughly controlled in accordance with the alternator load and finely in accordance with frequency. The control current is applied to the brake from winding 11 of a transformer 12 to the windings 13 and 14 of which are applied alternator voltage and current signals, frequency control being effected by an additional winding 16 1 , fed from a regulator 16 which may comprise a discriminator. The eddy current brake which is stated to give a constant torque over a wide range of speed 500-8000 r.p.m., has a rotor 9, Fig. 7, which is mostly a mass of iron or steel in non-laminated state and includes up to 10% by weight of a more conductive material such as copper or aluminium. The conductive elements may be constituted by conductive rings 91, which may be secured by, for example, electrolysis. The brake may be cooled by air, or the differential gear lubricating oil may be used. Circuits L 1 , C 1 , L 2 , C 2 , Fig. 11, tuned slightly above and slightly below the desired frequency control the current through output winding 21 1 , 21 2  of a magnetic amplifier which may be arranged to act directly on the brake 2 or on the core of transformer 12. An additional amplifier 28 may be included. An explanation of the current addition in transformer 12 together with a vector diagram, Fig. 10 (not shown), is included.
Patent GB-534568-A (GB)
Title: Improvements in or relating to silencing devices for flowing, pulsating gases
IPC: F01N1/24
Filed: 1940-03-14
Abstract: 534,568. Silencers for gaseous currents. BURGESS BATTERY CO. March 14, 1940, No. 4814. Convention date, May 1, 1939. [Class 7 (ii)] Exhaust or other gases entering at 5 pass directly through an aligned opening 11 to a " snubber " chamber 10, or byepass through a chamber 9 to a conduit 13 leading to the outlet 6, the gases in the chamber 10 also passing to the outlet through perforations in the conduit 13. The opening 11 may be formed with a lip 12, which may be directed away from, or towards, the inlet 5. A number of such units may be arranged in series, the outlet 6 from the first unit being arranged opposite the opening 11 of the second snubber chamber. Or the snubber chamber may be arranged in series with silencers of other types, as shown in Figs. 6 and 7. In Fig. 6, there are two inlets 53, 54 connected to the two cylinder banks of an engine, and arranged opposite openings 60, 61 leading to a snubber chamber 59, the byepass tube 62 being slotted at 63 and leading to a further silencer comprising chambers 64, 67 connected by perforated tubes 65, 66 overlapping the tube 62 and an outlet tube 69. In Fig. 7, the gases first pass through a perforated tube 76 surrounded by sound-absorbing material 73 and then are directed by a baffle 79 to an annular passage 80 arranged opposite an annular opening 83 to the snubber chamber 84, with byepass chamber 81 and slotted outlet tube 86. Specification 312,937, [Class 7 (ii)], is referred to.
Patent GB-868740-A (GB)
Title: Improvements in yarn-guiding means in textile spinning and like machines
Inventor: DENSON DAVID THOMAS
IPC: D01H7/18
Filed: 1959-02-11
Abstract: 868,740. Guiding means for yarn. T.M.M. (RESEARCH) Ltd. Feb. 8, 1960 [Feb. 11, 1959], No. 4819/59. Class 120(2) Yarn guiding means for textile spinning or like machines comprise an assembly of two notched members coaxially mounted upon the tip of a spindle and rotatable together relative to the spindle such that the yarn, as it is being led successively through the notches of said members in its passage from the delivery rollers to the traveller or the like, is wrapped about a surface which lies between the notched members through a complete turn or part thereof as determined by the relative angular positions of the notches. In the form shown the notched member assembly consists of axially spaced discs 13, 14 fixed on a sleeve 15 rotating on the spindle 12; the discs have notches 131 and 141 disposed as shown and yarn passes successively through the notch 131, wraps around the surface of the sleeve 15 and through a notch 141, the extent of the wrap depending upon which notch 141 is used. Combined with the upper disc 13 is a guide eye 11 which may as shown take the form of a wire helix attached to the disc 13. In a further form in which the lower disc has only one notch the discs are relatively adjustable so that the desired angular relationship can be achieved. If a yarn package is also carried by the spindle, the diameter of the discs 13 and 14 is slightly less than the bore of the package tube so that the latter may be freely withdrawn at doffing.
Patent GB-373193-A (GB)
Title: Improvements in and relating to the drawing of cotton roving in spinning-machines
IPC: D01H5/26
Filed: 1931-02-16
Abstract: 373,193. Drawing cotton roving in spinning-frames. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(Saco-Lowell Shops; 1, Federal Street, Boston, U.S.A.) Feb. 16, 1931, No. 4893. [Class 120 (ii).] Cotton roving is subjected during spinning to a preliminary draft of 18-30 per cent prior to the main drafting and spinning operations. The apparatus comprises front, back, and intermediate elements, the back and intermediate elements which effect the preliminary draft being spaced at least 1#" apart and driven at a ratio of from 1À20 to 1.45. In contrast to a mere stretching of the roving consequent upon its twisted condition, a permanent net draft of the required amount is effected by the adoption of the gear ratio and spacing of the back and intermediate elements, the fibres being unlocked and loosened. The main draft is at least one for each sixteenth of an inch of length of staple and should be at least ten. Specifications 3367/15, 9692/15, 233,835, 277,353 and 307,023, [all in Class 120 (ii), Spinning, twisting, &c.], are referred to. Weighted covered top rollers 5, 7, 9 co-operate with lower rollers 4, 6, 8, and a belt 10 passes between the intermediate rollers and around a bar 12 and is provided with a light slip-roller 21. The lower front and rear rollers are fluted and the lower middle roller knurled. The belt is tensioned and guided by a flanged roller 14 carried by arms 15 connected by a bridge-piece and maintained in position on a pivot-rod 16 by a spring clip 20. The top rollers are carried in cap bars 22 pivoted at 23 and provided with adjustable nebs for the intermediate and front top rollers. The pressure on the top rollers is distributed by saddles 30, 31. A continuous roller 37 supported by springs 40 clears the belts and the back bottom roller 8, and, being driven by the roller 8, has a wiping effect on the belt. Particulars are given of the weight and spacing of the slip roller, and of the size of the upper, back and middle rollers, and of the pressure thereon.
Patent GB-278650-A (GB)
Title: Improvements in feed water separators for steam boilers
Filed: 1927-02-21
Abstract: 278,650. Rehe, O. Oct. 5, 1926, [Convention date]. Feedwater, heating.-A separator for scaleproducing salts and mud in feedwater, adapted to be fitted into the dome a of a locomotive boiler, comprises a double-walled casing b Figs. 1 and 2, provided at the top with feedwater inlets d, d<1> and at the bottom with an open-topped sediment pump g having a sediment outlet pipe n. The feedwater first flows into a sump f provided in the casing b and thence to the annular space of said casing where it is preheated by the boiler steam to such an extent that the salts &c. are separated. It then flows through a pipe g, sump g, and a filter i, to the boiler, the whole path of travel of the water being indicated by arrows. The two walls of the casing b are of zig-zag shape and are provided with ribs c which lengthen the path and obstruct the flow of the water; the casing is provided with safety valves e which open when the pressure therein exceeds atmospheric. In a modification, the casing b, Fig. 3, is constructed so that the water flows in a helical path.
Patent GB-604200-A (GB)
Title: Method of casting metals
IPC: B22D17/12
Filed: 1945-02-27
Abstract: 604,200. Casting-machines. MADISON. KIPP CORPORATION. Feb. 27, 1945, Nos. 4911 and 4912. Convention. dates, June 30, 1944, and Nov. 3, 1944. [Class 83 (i)] In die casting, the molten metal is raised into the die as a non-turbulent slug by a plunger having about the same cross-section as the die cavity, substantial pressure on the metal only being developed when the die is full and being maintained while the metal solidifies. In a machine, for casting pistons, having cores 9, 11, 15 operated as described in Specification 550,595, the charge of metal in a well 17, adjustable as described in Specification 481,829, is raised into the die through a passage 16 having the same diameter as the well 17 and as the head of the piston being cast. The stroke of the plunger 18 is limited by a stop 22 so that it forms the end face of the head and for this purpose it is appropriately shaped, e.g. as in Fig. 3, to form deflector on the piston of a two-cycle engine. The die has overflow chambers E and G each communicating with a relief cylinder 27, 28 containing a plunger 23, 25 sustained by a hydraulic press 24, 26 adapted to yield under the maximum pressure of the plunger 18, e.g. 10,000 lbs. per square inch. During solidification, the plungers 23, 25 supply molten metal to make up for shrinkage. In a modification, the stop 22 and the two cylinders 27, 28, &c. are omitted, the plunger 18 advancing during cooling to make up for shrinkage. In this case, the face engaged by the plunger 18 is finally machined off.
Patent GB-1206831-A (GB)
Title: Method of air-conditioning
IPC: B64D13/08
Filed: 1968-01-31
Abstract: 1,206,831. Air-conditioning aircraft. SOC. BRONZAVIA. 31 Jan., 1968 [8 Feb., 1967], No. 4940/68. Heading F4V. In a supersonic aircraft in which air is delivered via inlets 5 to the cabin at about 0‹ C. and its humidity is nil, a liquid (e.g. water) is injected via entry points 6 in an atomized form the liquid vaporizing due to the temperature of the cabin atmosphere, the vapour being evacuated via an opening 7 and ducting 8 between the fuselage and the cabin wall 2 from which it enters the baggage compartment and is evacuated through an opening 9. This system removes some of the heat from the cabin walls and prevents freezing of the injected liquid. If the incoming air is at a temperature well above the freezing point of the liquid the inlets 5, 6 may be adjacent each other. The liquid may contain a perfume of disinfectant.
Patent GB-253965-A (GB)
Title: Improvements in or relating to fusible electrodes for electric arc welding
IPC: B23K35/36
Filed: 1925-02-23
Abstract: 253,965. Cape Asbestos Co., Ltd., and Gow, J. Feb. 23, 1925. No Patent granted (Sealing fee not paid). Uniting by fusion.-A fusible electrode for electric arc welding is coated with amorite asbestos, which has an average content of about 50.5 per cent silica and 39 per cent ferrous oxide and a low soda content. The coating may be applied to the electrode in the form of yarn or paste. The fusing point of the coating may be varied by the addition of materials such as silicate of soda or silicate of alumina, either by incorporating in the coating or smearing over the coating after the application to the rod. Where yarn is used one or more strands may be applied to the rod by rotating the rod and feeding it lengthwise past a bobbin or spool of the yarn. The coating may be applied in paste form by hand &c., excess being removed by rotating the rod against a blade.
Patent GB-1493432-A (GB)
Title: Laser amplifier
IPC: H01S3/06
Filed: 1975-02-05
Abstract: 1493432 Lasers COMPAGNIE GENERALE D'ELECTRICITE 5 Feb 1975 [5 Feb 1974] 4957/75 Heading H1C To prevent the formation of diffraction rings and consequential deleterious localized zones of high radiation intensity within a laser amplifier comprising a cylindrical neodymium glass rod 2, the rod is formed with a symmetrical waisted configuration 3, which is filled out to a uniform cross-section by a liquid 5 of similar refractive index contained in a transparent sleeve 6. The amplifier is side pumped by an encircling flash tube 1. A suitable liquid is stated to be a solution of bromoform in ethanol or dimethylsulfoxide.
Patent GB-754717-A (GB)
Title: Frame unit with a slidable glass panel for motor vehicle windows
IPC: B60J10/04
Filed: 1954-02-19
Abstract: 754,717. Automatic catches. FIAT SOC. PER AZIONI. Feb. 19, 1954 [Feb. 28, 1953], No. 4985/54. Class 44. [Also in Group X] A catch 12 secured to a slidable window 4 by screws 13 comprises a ball 11 acted on by a bolt 14 whose upper end engages the conical portion 15 of a push-button 16 biased by spring 17. On pushing button 16 inwardly a cylindrical portion 16a of reduced diameter allows the bolt 14 to move upwardly, thus disengaging ball 11 from one of a series of recesses 7c in a fixed member 7b.
Patent GB-216203-A (GB)
Title: Improvements in and relating to electric welding
IPC: B23K11/06
Filed: 1923-02-21
Abstract: 216,203. White, A. E., (Elyria Iron & Steel Co.). Feb. 21, 1923. Drawings to Specification. Tubes. - In electrically welding tubes the contact pressure of the electrodes on the work is varied so as to vary the resistance of the welding current circuit and so control the current. The machine may form part of a machine for converting a strip into a tube, welding, burr-removing, cooling, straightening and cutting off, or may form one of a number of separate machines for these purposes. Specification 216,473, [Class 83 (iv), Metals, Working], is referred to.
Patent GB-196250-A (GB)
Title: Improvements relating to brakes for automobile vehicles
IPC: B60T13/36
Filed: 1923-02-21
Abstract: 196,250. Westinghouse Brake & Saxby Signal Co., Ltd., (Assignees of Stewart, C. D.). April 11, 1922, [Convention date]. Controlling handles associated with hand steering-devices; hydraulic and pneumatic transmission; stop-gear operated by driver releasing a lover.-Fluid-pressure brakes, are controlled by a hand-wheel 3 slidably-mounted on the steering- column below the steering hand-wheel 4. The hand-wheel 3 operates a spring-pressed slide-valve 18 through a collar 9, a lever 14 and a push-rod 15 The valve puts a brake cylinder 20 into communication either with a pressure cylinder 23 or with an exhaust port 25. The valve may be held by its spring in a position in which the brakes are applied, so that the driver must always grip the hand-wheel 3 to keep the brakes off.
Patent GB-556755-A (GB)
Title: Improvements in and relating to refinishing weathered surfaces
IPC: B05D7/26
Filed: 1942-04-17
Abstract: 556,755. Coating surfaces; coating-compositions. DU PONT DE NEMOURS & CO., E. I. April 17, 1942, No. 5107. Convention date, April 18, 1941. [Class 95] [Also in Group IV] A process of refinishing metallic surfaces having a weathered pigmented coating thereon comprises applying to the cleaned and smooth surface an intermediate film of a composition containing approximately equal parts of an alkyd resin, preferably oil-modified, and pyroxylin dissolved in a volatile solvent vehicle having the property of attacking the weathered pigmented coating, superficially drying, and thereafter applying an alkyd resin enamel free from pyroxylin and from active solvents for pyroxylin. In an example, the intermediate coating composition comprises nitrocellulose, a linseed oil-rosin-glyceryl phthalate resin, dibutyl phthalate, castor oil. carbon black, titanium dioxide. talc, denatured ethyl alcohol, methyl ethyl ketone, n-butyl acetate, toluol and a petroleum diluent.
Patent GB-319181-A (GB)
Title: Improvements in methods of manufacturing saw blades and the saw blades produced thereby
IPC: B23D63/00
Filed: 1929-02-15
Abstract: 319,181. Peiseler, A. Feb. 15, 1929. Drawings to Specification. Saws, cutting; milling.-In a method of cutting teeth on a saw blade of the type where the cutting surfaces of the teeth are arranged at varying angles to the lateral surfaces of the saw-blade, the blade is clamped so that it forms the curves of a wavy line. The teeth are then cut by a milling cutter which cuts perpendicularly to the longitudinal axis of the wavy line. The blade of the saw is then straightened out. '