baber/WOPTO huggingface dataset:
Patent GB-557095-A (GB)
Title: Improvements in or relating to flame proof electrical switch gear for use in mines
IPC: H01H29/22
Filed: 1941-10-30
Abstract: 557,095. Mercury switches. PEEBLES & CO., Ltd., B., WOOD & CO., Ltd., H., and BURNS. P. Oct. 30, 1941, No. 1947/43. Divided out of 557,065. [Class 38 (v)] Flame-proof electrical switchgear controlling machines in mines include mercury switches arranged to isolate one live contact on tilting, and to connect a centre contact or contacts with another, connected to earth, as a safety precaution. In the examples, Fig. 1 shows a single angled casing 1 with mercury 6 and inert gas, with three contacts of which, normally one outer 2 is live, the centre 3, is connected to the machine to be isolated and the third 4 is connected to earth. On tilting from the position shown, the main supply current passing from 2 to 3 is stopped and, after a short delay caused by a baffle 5, the machine is earthed through 3 and 4. In Fig. 3, two separate switches 7, 8 are used, contact 10 being the supply, contacts 11 and 12 joined and connected to the machine, and contact 13 earthed. In a further modification two such separate switches are formed in one outer casing and the earthing switch has a baffle similar to 5, Fig. 1.
Patent GB-998237-A (GB)
Title: Permanent magnet assembly
IPC: B03C1/14
Filed: 1964-01-16
Abstract: 998,237. Magnetic separation. WESTING- HOUSE ELECTRIC CORPORATION., Jan. 16, 1964 [Jan. 28, 1963], No. 1992/64. Heading B2J. [Also in Division H1] A permanent magnet assembly comprises a soft magnetic elongated trough-shaped yoke 50 having two sides defining two pole faces at a working face, an elongated central polepiece 48 extending parallel to and disposed within the yoke in fixed spaced relation thereto to define a third pole face at the working face, and at least two permanent magnets 41-44 substantially filling the space between the yoke, polepiece and working face, the arrangement and magnetization directions of the magnets being such that the magnets converge their one polarity on the polepiece and their opposite polarity on the yoke whereby three poles are presented at the working face, two similar poles at the two pole faces and an opposite pole at the third pole face. As shown there may be two such assemblies providing a total of five pole faces, or the number may be increased to extend around 360 degrees. The magnets may be oriented, and of either a ceramic such as barium or strontium ferrite, or a metal alloy such as Alnico. The assembly section may be arcuate instead of the V-shape shown. The assembly may be used in a magnetic particle separator wherein it is mounted on a stationary shaft 16 and has flowing over or under a surrounding rotating drum a dry or wet feed containing magnetic ores.
Patent GB-803943-A (GB)
Title: Improvements in or relating to vitrifiable fluxes
Inventor: LARSEN WILLIAM RICHARD
IPC: H01B1/16
Filed: 1957-01-21
Abstract: A coating of silver set in a vitreous matrix is produced on a ceramic object by firing on a composition consisting of finely divided silver (or a compound such as the oxide or carbonate which yields silver during firing) and a vitrifiable flux comprising bismuth trioxide, cadmium oxide and boric oxide (or one or more substances giving rise to these oxides when fired).  The composition may be applied in an organic vehicle by brushing, spraying, dipping or screen stencilling, and the resulting coated ceramics (ceramics is defined to include glasse, china, porcelain, mica, steatite porcelain, titanates and titanium dioxide) may be used as capacitors.  The soldering of metal, e.g. electrical lead wires, to the silver coating may be performed by fluxing with a rosin flux followed by dipping in a molten solder bath comprising 62 per cent tin, 36 per cent lead and 2 per cent silver. p Specification 803,944 and U.S.A. Specification 2,385,580 are referred to.
Patent GB-1401592-A (GB)
Title: Linear electric motors
IPC: H02K41/025
Filed: 1973-01-16
Abstract: 1401592 Linear electric motors CONZ ELEKTRICITATS GmbH 16 Jan 1973 [19 Jan 1972] 2196/73 Heading H2A The secondary 4 of a linear electric motor is cooled by liquid 5 which is directed on to the surface of the secondary and there evaporates, compressed gas subsequently being passed through the coolant conduit 11 to keep it clean and free of liquid. The coolant may be directed on to the secondary from its stationary surroundings, as shown, or from the motor primary member which moves along the secondary, Fig. 2 (not shown). The secondary itself may be hollow, Fig. 3 (not shown), and may have apertures (12) interconnecting its hollow interior and its external surface so that coolant liquid may be passed along the hollow interior and then out through the apertures to the external surface. The temperature of the secondary may be monitored by a temperature sensor 9 which controls the flow of coolant and may control the current flowing through the motor primary.
Patent GB-550936-A (GB)
Title: Improvements in and connected with electrical wiring systems
IPC: F16L3/12
Filed: 1941-10-06
Abstract: 550,936. Supporting conductors and conduits. CRABTREE & CO., Ltd., J. A., McLOUGHLIN, H. F., HILL, W. E., MORGAN, R. W., and WINTLE, T. D. G. Oct. 6, 1941, No. 2215/42. Divided out of 552,502. [Class 36] Conductors a of aircraft &c. wiring systems are loosely contained in tubes b of flexible and resilient insulating material on which are slidably arranged externally grooved rubber sleeves c; the tubes b and sleeves c are compressed to perpermit them to enter keyhole slots e in flanged plates f secured to the aircraft &c. structure, the parts then expanding and the peripheries of the slots e engaging the grooves in the sleeves c to hold the latter against axial movement.
Patent GB-539421-A (GB)
Title: Improvements in or relating to syphons
IPC: F04F10/00
Filed: 1940-02-06
Abstract: 539,421. Siphons. FLYNN, J. Feb. 6, 1940, No. 2267. [Class 69 (i)] A siphon is provided at the receiving end with a float valve a kept in place by a guard b controlling the flow of water; adjacent the float valve is a clack-valve c which assists in priming the siphon. At the highest part of the siphon is placed a screw cap by which priming is effected.
Patent GB-1241154-A (GB)
Title: Apparatus for sprinkling facing-sand on a pattern-plate in automatic moulding machines
IPC: B22C5/12
Filed: 1970-01-16
Abstract: 1,241,154. Swinging shoot. BADISCHE MASCHINENFABRIK G.m.b.H. 16 Jan., 1970 [17 Jan., 1969], No. 2341/70. Heading B8S. [Also in Division B3] Apparatus for sprinkling facing-sand on to a pattern plate 25 comprises a loading container 12 and a presser head 11 which are conjointly movable, a pipe 28 located between the container 12 and presser head 11, and a swingable shoot 8 arranged above the pipe, the shoot terminating in an upper funnel-shaped portion of the pipe 28. Rollers 14 on the pipe 28 are position and guide bifurcated arms 9 attached to the shoot 8 so that in all positions of the loading container 12 the end of the shoot is located within the funnel-shaped portion of the pipe 28. In operation, when the container 12 has been filled with body sand from a hopper 21, drive means 15 is actuated and moves the container 12, pipe 28 and presser head 11 to the left. This operates a switch 18 and thus causes facing sand to be discharged from the container 1 through funnel 6, shoot 8 and pipe 28 on to the pattern 25. When the pipe 28 reaches the end of the mould box 26, the motor 5 is stopped by actuation of switch 19 and the container 12 drops its contents into the mould box 26. The presser head 11, pipe 28 and container 12 are then moved-to the right where the container 12 is refilled from hopper 21 ready for the next cycle.
Patent GB-875489-A (GB)
Title: Improvements in screw thread cutting devices
IPC: B23G1/46
Filed: 1958-01-24
Abstract: 875,489. Screw-cutting attachments. SVENSKA PRECISIONSVERKTYG A.B. Jan. 24, 1958 [Jan. 26, 1957], No. 2398/58. Drawings to Specification. Class 83 (3). The subject-matter of this Specification is identical with that described in Specifications 875,488 and 875,490, but the claims are concerned with the means for applying axial pressure to the reverse-drive rollers. Specifications 748,091 and 830,332 also are referred to.
Patent GB-470902-A (GB)
Title: Improvements in or relating to thermally operated fire-alarm apparatus
IPC: G08B17/04
Filed: 1937-01-27
Abstract: 470,902. Thermal switches. COMPAGNIE DES TELEPHONES THOMSONHOUSTON. Jan. 27, 1937, No. 2445. Convention date, Feb. 29, 1936. [Class 38 (v)] In a fire-alarm apparatus having an air or gas filled exploring tube 12 leading to a chamber 15 that is separated from a chamber 2 by a diaphragm 4 with a small orifice 5, a sudden rise in temperature causing movement of the diaphragm and opening of a circuit at a screw contact 6, provision is also made for the circuit to be opened when a maximum temperature is reached ' even though the rise has been slow. This is effected by a series of gas-filled chambers 13, 14 arranged at points along the tube 12 but prevented from communicating therewith by a fusible barrier which breaks down when the maximum temperature is reached and allows a sudden rush of gas to enter the tube 12 and operate the diaphragm 4. The barrier which is installed at 20 may comprise, Fig. 4, a dished member 26 having holes 28 and embedded in a lead ring 27, the interior of the dished member being filled with a fusible alloy 29. The chambers 13, 14 are adapted to be mounted on brackets which hold them well away from the wall.
Patent GB-920908-A (GB)
Title: Improvements in or relating to pressure exchangers
Inventor: KENTFIELD JOHN ALAN CHARLES
IPC: F04F13/00
Filed: 1961-01-20
Abstract: 920,908. Pressure exchangers. POWER JETS (RESEARCH & DEVELOPMENT) Ltd. Dec. 20, 1961 [Jan. 20, 1961], No. 2453/61. Class 8(1). The dimensions of each of a plurality of openended rotor cells of a pressure exchanger having ported end plates to control the admission and extraction of gas to and from the cells are such that at the design speed of operation the primary mode of sound osciallations generated is above the upper limit of audiofrequency. For each cell the Following formulae applies Nn/60 # 16000 # a o /1#  where N = rotor speed in R.P.M. n = number of cells a 0  = velocity of sound in feet per second 1 = axial length of each cell in feet # = time taken for a cell to open time taken for a wave to traverse cell length. The cell number may be increased by arranging them in concentric rings 20 - - 23 as shown in Fig. 2 with their plane walls 24, 25, 26 in staggered formation. A port indicated by a chain line 27 forms one end of a duct; other ports also being provided. In a modification the walls of concentric rings of cells are in line but the opening and closing edges of the ports are staggered. In the case of a single ring of cells the cell walls 30, Fig. 4, are arcuate and their hooked edges engage slots in cylinders 21, 22.
Patent GB-1455119-A (GB)
Title: Missiles
IPC: F41G7/30
Filed: 1973-01-17
Abstract: 1455119 Guided missiles BRITISH AIRCRAFT CORP Ltd 17 Jan 1974 [17 Jan 1973] 2548/73 Heading F3A [Also in Division G2] A guided missile which is optically tracked during flight comprises means for producing a rearwardly directed fan shaped light beam and means for rotating the light beam about the longitudinal axis of the missile or an axis parallel to the longitudinal axis. The means for producing the light beam comprises : a pulsed laser diode 1 producing an output beam of substantially rectangular cross-section; a bundle of light-transmitting fibres 2 arranged to convert the rectangular beam to a circular beam; a converging lens 4; and a rotating cylindrical diverging lens 5 for producing the fan shaped beam.
Patent GB-1133323-A (GB)
Title: Polypropylene
IPC: C08L23/28
Filed: 1966-01-20
Abstract: 1,133,323. Coatings. EASTMAN KODAK CO. 20 Jan.. 1966 [21 Jan., 1965], No. 2588/66. Headings B2E and B2K. [Also in Division C3] Substrates may be coated with compositions comprising organic solvent solutions of chlorinated amorphous polypropylene having an ash content of less than 0.01 weight per cent and chlorine content of 5 to 75 weight per cent. Specified substrates are wood, metals, masonry, concrete, ceramics, asphalt, paper, composition board, plastic articles and films, wires, cables and ropes. Examples describe the application of compositions comprising chlorinated amorphous polypropylene (CAP) and (16) chlorinated wax, or (11-13) ethylene/ vinyl acetate copolymers together with (14) chlorinated terphenyl, (15 and 17) chlorinated wax or (18) chlorinated biphenyl to steel; (19) CAP, epoxidised soya bean oil and xylene to plywood in three successive coats; (20) CAP, chlorinated wax, long oil oxidising alkyd resin and toluene to concrete; (21) CAP, nitrile rubber, epoxidised soya bean oil and toluene to paper; and (23) CAP, ethylene/vinyl acetate copolymer, di-2-ethylhexyl adipate and toluene to aluminium; and extrusion coating of copper wire with compositions comprising (22) CAP, ethylene/vinyl acetate copolymer and epoxidised soya bean oil.
Patent GB-239108-A (GB)
Title: Improvements in flexible seatings and reclining means
IPC: A47C4/30
Filed: 1925-01-30
Abstract: 239,108. Higgins, F. W. Jan. 30, 1925. Seating-surfaces; bedstead bottoms.-A flexible seating or bedstead bottom comprises a band formed of blocks 1 arranged in staggered formation on cross rods 2, springs 4 or other resilient media acting exteriorly or at the side of the band to hold the blocks close together. The springs 4 may be accommodated within recesses 5 in the blocks 1. The band may be connected to the framework 9 of the seat or bedstead by means of hooks 8 and eyes 6.
Patent GB-414091-A (GB)
Title: Improvements in and relating to means for driving the turntables of talking machines
IPC: G11B19/265
Filed: 1933-01-27
Abstract: 414,091. Variable speed epicyclic gearing. ELECTRIC & MUSICAL INDUSTRIES, Ltd., Blyth Road, Hayes, Middlesex. Jan. 27, 1933, No. 2698. Convention date, Feb. 27, 1932. [A Specification was laid open to inspection under Sect. 91 of the Acts, July 28, 1933.] [Class 80 (ii).] Relates to speed-change gearing for gramophone turntables, of the kind described in Specification 414,090, and consists in providing in combination with a constant-speed spindle, having the turntable mounted thereon, mechanism to enable the spindle to rotate the turntable at different desired speeds, and means carried by the turntable and operable for controlling the speed-change mechanism. The controlling member, in the construction shown, consists of a slide 39 mounted on the turntable and having a finger-piece 40 projecting through a slot 38. The slide has a slotted inclined end 43, adapted to engage a member 45 which is pivotally attached to the outer ball-race 22 of speed-reduction gearing, which gearing is similar in construction to that shown in Fig. 9 of Specification 414,090. The member 45 has a resilient detent 30 attached thereto, the pronged end 35 of which is adapted to dig into the surface of the motor-board 1. With the parts in the positions shown, the outer raceway 22 is restrained by the detent 30 against rotation, and the turntable is driven at a low speed relatively to the spindle 3 through the rolling action of the balls 23. In order that the turntable may be driven at the same speed as the spindle 3, the slide 39 is pushed inwards, so that the raceway 22 is locked to the turntable by engagement of the parts 45, 43. In a modification, the pivoted member 45 is replaced by a spring - controlled vertically - slidable restraining member, adapted to be engaged at its upper end by a slide on the turntable, and having teeth at its lower end for engaging, when required, with the motor-board.
Patent GB-703084-A (GB)
Title: An improved clamp
IPC: B25B5/12
Filed: 1951-02-05
Abstract: 703,084. Clamps, pliers. CAULK. W. T. LOND-. March 14, 1952 [Feb. 5, 1951], No. 2740/51. Class 61 In a toggle clamp or grip ping device comprising a pair of jaw levers pivoted together intermediate their ends and each provided at one end with a pad or the like at least one of the pads being adjustable towards the other by screw means, the jaws are locked in clamping position or released therefrom by the knee action of a pair of toggle links connecting the tails of the levers. As shown, the jaw lever 1 carries a fixed gripping pad 7 and the jaw lever 2 has threaded therethrough a screw 8 carrying a pivoted pad 9. The link 14 of a pair of toggle links 13, 14 connecting the tails of the levers has an abutment 16 which gives the links a knee action at the pivot 17. The link 13 has a finger operable flange 15 for pulling the links out of alignment to release the jaws. A pair of pivoted handles 26, 27 are connected to the common pivots 25 of the jaw levers and toggle links.
Patent GB-370538-A (GB)
Title: Improvements in and relating to the construction of toy boats
IPC: A63H23/02
Filed: 1931-01-28
Abstract: 370,538. Toy boats. BOWRING, G. J. A., 4, Coburg Place, Weymouth, Dorset. Jan. 28, 1931, No. 2750. [Class 132 (iii).] A tov boat consists of a hull blank 1 of waterproofed cardboard, fibre or like flexible material bent so that the edges 2 may. be held by the indentations 8 in a V sectioned metal stem clip 7, the edge 3 being tacked to a stern plate 9, preferably of wood, slotted wooden gunwale strips 4 preferably secured by bolts 11, being fitted along the hull edges 6 and nested in recesses 10 in the plate 9. The stern plate may be provided with a seating for a propeller shaft, an elastic band motor being anchored to the gunwales, and to ensure rigidity a thrust strip may be secured between the gunwales, or a half deck fitted thereto.
Patent GB-805421-A (GB)
Title: Improvements in or relating to children's toy stoves
IPC: A63H33/30
Filed: 1956-01-27
Abstract: 805,421. Timing apparatus for controlling cooking. BERKENKAMP, A., and BERKENKAMP, H. Jan. 27, 1956 [Nov. 14, 1955], No. 2780/56. Class 28 (1). [Also in Group XVIII] A toy cooking stove has a scale 6 over which a pointer 7 is moved by a mechanism in the stove body 1 consisting of an external operable member 10 connected with a toothed segment 28, the latter being in one-way driving engagement with reduction gearing and spring-biased so that the segment drives the gearing slowly restoring pointer 7 and member 10 to their original positions. As shown, stove body 1 has a top-plate 2 with hot-plates 3 and a back wall carrying a scale 6. The winding lever 10 is integral with segment 28 and is biased by a spring 9 to its upper position. A crown-wheel 19 rotating with lever 10 drives pinion 20 on a shaft having pivot 21 at its other end which drives wheel 22 to rotate pointer 7 on a shaft 8. When lever 10 is lowered, it moves pointer 7 and biases the spring 9 and, when released, segment 28 engages gear-wheel 11, 12 and drives it and hence through gearing 13, 14, 15 returns lever 10 and pointer 7 to their original positions. A governor 16 associated with gear 15 governs the rate at which lever 10 rises and engages a gong 23 to give audible warning of the end of the timing. In a modification, lever 10 is replaced by a rotary member 27 with a handle 26 to which is secured the toothed segment 28. Another toothed segment 30 mounted on a shaft 27 meshes with the driving pinion 31 of reduction gearing and carries the bell gong 23 with which governor 16 co-operates.
Patent GB-210285-A (GB)
Title: Improvements in and relating to hot metal despatchers
IPC: B21J15/32
Filed: 1923-01-30
Abstract: 210,285. Wright, W. F. Jan. 30, 1923. Pneumatic dispatch apparatus.-In a pneumatic apparatus for dispatching hot metals, such as rivets, from the heating point to the place where they are to be used, the dispatching chamber, which has a normally closed receiving opening, is supported by a tubular member on a compressed-air chamber, communication between which is normally closed by a spring-actuated valve, which may be opened to allow the hot metal to be driven through a conduit in the dispatching chamber substantially in alignment with the receiving opening. The compressed air chamber 10 is formed in a frustro-conical tank 3, which is closed at its lower end by a flanged baseplate 6 and at its upper end by a cap 8. A valve 15 with fingers 16, which is normally seated in a nipple 14 screwed in the cap. is provided with a cap 20, and is loosely mounted on a headed rod 19, which is pivoted to a foot lever 30. The rod 19 passes through a stuffing-box 21 screwed into a partition 7 secured in the tank and is normally pressed upwards by a spring 26 engaging at one end a collar 26<1> fixed to the rod and at the other end a washer 27 supported by a fixed sleeve 22. The valve is opened by pressing the foot lever, the amount of opening being determined by an adjustable screw-stop 34. The dispatching- chamber 4 has an opening 39 for the hot metal, which is closed by a weighted flap valve 40 and is out of alignment with the connecting pipe 37. A hose communicating with a source of compressedair is coupled to the inlet 11, and after the rivet &c. is passed through the opening 39, the valve 15 is opened and the rivet &c. driven by the compressed-air through a helical metal tube 5, which is secured by a nut 46 and ferrule 45 to an enlargement 44 on the chamber 4.
Patent GB-1106829-A (GB)
Title: Speed control reference signal generators for lift drives
IPC: B66B1/18
Filed: 1967-01-19
Abstract: 1,106,829. Control of motors. INVENTIO A.G. 19 Jan., 1967 [19 Jan., 1966], No. 2860/67. Heading H2J. [Also in Division G3] A lift-motor 4 is controlled through amplifier 10 in accordance with the difference between voltages derived respectively from reference voltage generator 8 and tachometer generator 9. When the lift-car 2 approaches floor 6, a magnetic switch 14 is actuated, whereby capacitors 15, 17 are disconnected from positive terminal 83 and are connected to negative terminal 85 to be discharged through resistor 19, so reducing the reference voltage. A further magnetic switch 13 is then actuated to interrupt the discharge of the capacitors through resistor 19, the capacitor 17 being isolated from the capacitor 15. Photo-electric senser 11 cooperates with a perforated strip 12 to produce pulses for controlling transistor 22, the capacitor 15 being further discharged through transistor 20, resistor 21, and transistor 22 to the negative terminal 85. The magnitude of the currentpulses passed by the transistor 20 is determined by the voltage stored by the capacitor 17. To provide constant retardation, the holes in the perforated strip 12 are distributed in a parabolic manner. When the lift-car is level with the floor, a mechanical brake is applied, the plates 15À2, 17À2, being again connected to terminal 8À5, a diode 16 preventing charging of the capacitors.
Patent GB-249271-A (GB)
Title: Improvements in frames for spectacles, eyeglasses or the like
IPC: G02C5/02
Filed: 1925-02-02
Abstract: 249,271. Harrison, A. J. Feb. 2, 1925. Spectacles and eye glasses.-A single length of wire is employed for forming the bridge 1, is bent down so as to pass around the nose and has its ends 7 'bent downwardly to form extensions to carry the placquets 3. Between the bridge and the placquets the wire is soldered to the rims 5 upon their rearward sides. The placquets 3 are secured to the ends of the wire by means of staples 8 passing through two holes in each placquet and its corresponding support. This arrangement may also be applied to rimless eyeglasses by soldering the wire to clips on the lenses. Specifications 21323/12 and 209,597 are referred to.
Patent GB-451935-A (GB)
Title: Improvements relating to domestic boilers, stoves and the like
IPC: F24C15/02
Filed: 1935-12-24
Abstract: 451,935. Inspection devices for stoves. PASCALL, F., 156, Charing Cross Road, London. Dec. 24, 1935, No. 2931. [Class 126] Protective wire - gauze or like coverings l for the mica or like transparent panels c in the observation apertures in the door of a domestic boiler, stove, or the like are held in place by the same means as the panels c. In the form shown, the panel c is sandwiched between inner and outer wire-gauze coverings l, all three being held between the door a and a clamping-plate d. A covering l may be provided on the outside only.