baber/WOPTO huggingface dataset:
Patent GB-510717-A (GB)
Title: Improvements in or relating to sliding clasp fasteners
IPC: A44B19/38
Filed: 1938-02-04
Abstract: 510,717. Sliding-clasp fasteners. TULLIO, A. D., and LIGHTNING FASTENERS, Ltd. Feb. 4, 1938, No. 3631. [Class 44] A completely separable sliding-clasp fastener with pin and socket end members 6, 7 has the pin member so offset laterally to the fastener members that it does not pass through the slider. The engaging portion 9 of pin member is not therefore restricted as to size and can be made as large as is required for strength when of non- metallic material. The pin member has integrally formed therewith a fastener member 13 the connecting neck 12 for which passes through the slider to act as a guide and reinforcement. The socket member is formed with a cut away portion 14 on which the slider rests and is also formed with a fastener member 16 provided only with the usual interlocking projection, Specifications 391,146, 426,644, and 504,716 are referred to.
Patent GB-595767-A (GB)
Title: An improved differential mechanism
IPC: B60K17/16
Filed: 1945-02-14
Abstract: 595,767. Differential gearing; ratchet clutches. MARENDAZ, D. M. K. Feb. 14,1945, No. 3638. [Class 80 (ii)] A differential gearing which allows freewheeling comprises co-axial shafts b rotated from a driving housing a through eccentrics e connected to the housing by blade springs g which deflect on rotation of the housing in either direction and turn the eccentrics into jamming engagement with drum c splined on the shafts b. As shown, the eccentrics e turn on spindles projecting axially from carriers d which are freely mounted on the shafts b and whose lag relative to the housing on rotation deflects the springs g. Limit stops i on the housing prevent excessive lag of the carriers, whose movements within these limits may also be suitably damped. Each carrier may have only one eccentric, or the carriers may be united and may then have on each mutual spindle two eccentrics or a single eccentric serving both shafts. The drums c may be dispensed with, the eccentrics acting directly on the shafts b.
Patent GB-509332-A (GB)
Title: Improvements in electric resistance alloys, wires, tapes and the like
IPC: H01B1/02
Filed: 1938-02-05
Abstract: 509,332. Alloys. BRITISH DRIVERHARRIS CO., Ltd., and KAY, W. M. Feb. 5, 1938, No. 3706. [Class 82 (i)] Nickel-chromium or nickel-chromium-iron alloys for resistance wires or strips contain 0.3-0.5 per cent of uranium, with or without 0.01-5 per cent of calcium, 1-20 per cent of molybdenum, or 0.1-1 per cent of zirconium and with or without additions of tungsten, vanadium, cobalt, manganese, silicon, alkaline earth metals, or rare earth metals. Specifications 413,048, 438,140, 438,759 and 459,319 are referred to.
Patent GB-430186-A (GB)
Title: Improvements in or relating to paper folding machines
IPC: B65H45/16
Filed: 1934-02-05
Abstract: 430,186. Paper-folding machines. GOSS PRINTING PRESS CO., 1535, South Paulina Street, Chicago, U.S.A.-(Assignees of Crafts, C. S. ; 645, North Lombard Avenue, Oak Park, Illinois, U.S.A.) Feb. 5, 1934, No. 3711. Convention date, June 28, 1933. [Class 100 (i)] In rotary paper-folding machines, the shaft 14 of one of the cylinders 1 is journalled in the side frames 20 in antifriction bearings which are smaller in diameter than antifriction bearings provided on the shaft for a gear 10 carrying a cam 9 operating the sheet-carrying pins 2 or grippers, the arrangement permitting easy assembling and disassembling of the machine when, for example, it is necessary to replace the cam. The cam 9 is fixed by bolts 11 to the gear 10 and bears against a shoulder 46 on the shaft 14. A reduced part 13 of the shaft receives the inner races of ball bearings 12 with a push fit, the outer races fitting with a press fit into a bore in the gear 10. A ring 15 spaces the bearings which are held in position by a collar 16 threaded on a part 17 of the shaft of slightly smaller diameter than the part 13. The inner races 22 of roller-bearings 24 supporting the shaft 14 in the frame 20 are a press fit on a further-reduced part 21 of the shaft 14 and are spaced by a ring 26. A sleeve 27 forms a mounting for the outer races 23 and spacing ring 31, the rollers 24 running in grooves in the races 23. A member 28 secured to the sleeve 27 by bolts 32 and to the frame 20 by bolts 33 has an inwardly-directed flange 29 which presses against the races 23 and a lip 49 sealed by a ring 50 to prevent leakage of lubricant. A groove 47 on the gear 10 is engaged by a rim 48 on the sleeve 27 to provide an oil-tight joint. The driving-gear 35 is keyed to the reduced end 36 of the shaft and is secured by an end cap 37 and bolt 38. In order to prevent backlash between the gear 35 and its driving- gear 40, a narrow gear 41 is mounted coaxially with the gear 35 and is capable of slight circumferential adjustment.
Patent GB-189695-A (GB)
Title: Improvements in and relating to feed motions for sewing machines
IPC: D05B27/02
Filed: 1922-02-09
Abstract: 189,695. Cooper, J., and Twin Bobbin Sewing Machine Co., Ltd. Feb. 9, 1922. Sewing-machines; feed by dogs.-A feed-bar M receives up-and-down movements from a camgroove in the boss of a lever 20 forming part of the rotary hook driving mechanism. For the to-and-fro movements, a grooved arm C is fixed on the feed rock-shaft A and is engaged by a pin which also slides in a groove in a fixed arm F. The pin is carried in the end of a link E reciprocated by connection with an oscillating lever 13. The length of stitch is regulated by changing the inclination of the fixed arm F.
Patent GB-286854-A (GB)
Title: Improvements in washing boilers
IPC: D06F1/08
Filed: 1927-02-10
Abstract: 286,854. Davies, C. Feb. 10, 1927. Washing boilers of the type in which the pan A is supported at the lower end by feet &c. B are provided with covers consisting of an outer ring D shaped to prevent spilling of the contents and a central lid E, removable or hinged to the ring D, which can be opened without disturbing a wringer &c. that can be mounted on the outer ring. A removable circulating device has strengthening cones G at the junction of the tube C with the bottom and top. A stepped flange H is attached to the bottom of the pan to act as a flame protector.
Patent GB-673393-A (GB)
Title: Improvements in or relating to gas turbine rotors
Inventor: HANSEN KAJ EDVARD
IPC: F01D5/04
Filed: 1950-02-14
Abstract: 673,393. Gas turbines. AKTIESELSKABET BURMEISTER & WAIN'S MASKINOG SKIBSBYBBERI. Feb. 14, 1950, No. 3782/50. Class 110(iii), A rotor for a Francis turbine has cooling passages 7-9, formed in its vanecarrying part and connected with passages in the rotor shaft 3 for the supply and discharge of the cooling liquid. The coolant is fed to a central cavity 6 in the rotor by pipes 4, 5, and then flows through the passages 7-9 to the rotor shaft which serves as a return line. The passages 8 are of larger diameter than the other passages, are closed by plugs 12 and contain helical bodies 11 to speed the flow of coolant therethrough. The bore 5 may be dispensed with, in which case certain passages 9 communicate with the supply pipe 4.
Patent GB-134143-A (GB)
Title: Improvements in and relating to Ladders.
Inventor: MATTHIAS EDWARD ALEXANDER
IPC: E06C1/32
Filed: 1919-02-17
Abstract: 134,143. Matthias, E. A. Feb. 17, 1919. Ladders.-A combined long and step ladder is formed of two parts 1, 2 hinged together at 4 and held in line as shown in Fig. 2, or at an angle as shown in Fig. 3, by means of plates 7 and bolts and wing-nuts 8. The sides are each in two parts 5 separated by distance-pieces, to which the rungs are secured. Reference has been directed by the Comptroller to Specification 12164/85,
Patent GB-1432291-A (GB)
Title: Method and apparatus for producing plastic tubes
IPC: B29C48/11
Filed: 1974-01-28
Abstract: 1432291 Extruding helically ribbed tubes SUMITOMO-CHEMICAL CO Ltd and IKEGAI IRON WORKS Ltd 28 Jan 1974 [29 Jan 1973] 03936/74 Heading B5A [Also in Division F2] In the extrusion of a plastics tube having an internal helical rib or ribs, by extruding the tubular wall and rib from separate extrusion outlets 3, 10 between which relative rotation is effected, the rib forming outlet, or outlets, 10 is located downstream of the tube forming outlet 3 so that the rib is applied to a tube wall which has been partially or completely cooled. In the embodiments the tube forming outlet is stationary, and the rib forming outlet rotates. The tube may have a single rib extending across all its bore, as produced in Fig. 5, or a pair of diametrically opposed ribs each extending partially across the bore, as produced in Fig. 1. The tube may be employed in place of bars, or bamboos, or for turbulent conveyance or separate conveyance of liquids and gases. The tubular wall may be transparent with the rib coloured to provide a decorative effect. The tubular wall may be sized and cooled by a sizing plate at the inlet of a water bath, or by a vacuum sizer S, Fig. 5, comprising a vacuum chamber 21 intermediate coolant chambers 20, and a following water bath W. Water dripped on to the tube 5 from a pipe 22, acts to maintain the vacuum in the sizer, and prevent creasing and tearing of the tubular wall by shrinkage where the rib is applied. Preferred relationships are stated between various dimensions of the Fig. 5 embodiment. In the Fig. 1 embodiment, a pair of outlets 10 are provided in an inner die 5 which is rotatable, in a carbon bearing 4 and bearing 7, by a chain-and-sprocket drive. A single extruder may supply material to both outlets or, as shown, separate extruders may supply the outlets, respectively, via lateral inlet 14, and lateral inlet 12 and ports 13. Alternatively, the outlet 10 may be supplied from a separate extruder through an axial bore of the member 5, upon removal of a plug 15.
Patent GB-196732-A (GB)
Title: Improvements in and relating to valve devices for gas flashing apparatus and the like
IPC: F16K11/16
Filed: 1922-02-10
Abstract: 196,732. Jackson, T. Feb. 10, 1922. Closure members, hinged; valves actuated automatically or intermittently. - The control valve of a gas flashing apparatus and the like, such as that described in Specifications 20368/11 and 9640/13, is pivoted on the top of the expansible chamber and a regulable by-pass is provided to short-circuit the control valve. The part A is adapted to be displaced angularly, and carries a pivoted tilting track a for a rolling weight b. The stems d of the valves e are fitted in holes c in the track, and are retained by pins f passing through the stems. These connections are made loose so that the valves may accommodate themselves to their seats h. A supply of gas to the pilot light is obtained by providing a conduit n, m controlled by an externally adjustable valve o.
Patent GB-215449-A (GB)
Title: A motive power controlling device for use in connection with machinery
Filed: 1923-02-10
Abstract: 215,449. Robinson, P. J. Feb. 10, 1923. Centrifugal switches.-An engine or a motor driving machinery is automatically stopped should a driven part break or get jammed. A driven member is provided with a centrifugal ring or governor A mounted on a collar a<3> on a shaft a driven at a high speed through toothed gearing comprising three or more wheels. The ring A, which during normal running is transverse to the shaft a, is connected to a disc a<5> by a link a<6> and separated therefrom by a helical spring a<7>. When the speed of the shaft a falls, the disc a<5> is pushed along the shaft and' engages a spring, electrical contact a<8>, or a trigger lever, or a pair of terminals connected with the engine or motor. An alarm may also be sounded.
Patent GB-364380-A (GB)
Title: Closures for bags, purses, pouches and the like
IPC: A45C13/06
Filed: 1931-02-10
Abstract: 364,380. Bags, pouches, &c. LAMARTHE, A., 7, Passage Pecquai, Paris. Feb. 10, 1931, No. 4098. Convention date, Aug. 26, 1930. Addition to 347,264. [Class 133.] Means are provided for enabling the opening pressure to be applied at a position intermediate the ends of the closure springs described in the parent Specification. As shown in Fig. 1, the springs 4a are enclosed by U-shaped members 10, 10a, slidable over bar members 11, 11a and provided with ball-catch knobs 12, 12a, which when engaged serve to maintain the mouth of the bag, &c. in the open position. Alternatively the inwardlyprojecting arms of the parts 10, 10a may be slidable within hollow connecting-pieces, or the arms may be slidable directly upon one another. The lower arms and connecting-pieces of the members may be omitted. Fig. 6 shows a construction in which a pair of tubular members 13, 13a, anchored to the springs 4, 4a, at 15, 15a, are disposed in the space within the springs with the operating knobs projecting above them. In this form springs 16, 16a, are provided adapted to bear on the connecting- piece 11 to obtain a more rapid closing action.
Patent GB-338451-A (GB)
Title: Improvements in arches for supporting sides and roofs of headings and tunnels in mines and like places
Inventor: RICHARDS FERDINAND
IPC: E21D11/22
Filed: 1930-02-07
Abstract: 338,451. Richards, F. Feb. 7, 1930. Shoring. - The ends of curved rails used as supports for mine shafts and the like are flattened at the meeting portions A, and the joint is made by straight-sided fishplates B, instead of the usual curved edge plates. The jointing plates may embrace the flanges and have wedge edges to increase the grip on the flanges.
Patent GB-522993-A (GB)
Title: Improvements in friction drive mechanism
IPC: F16H19/00
Filed: 1938-12-19
Abstract: 522,993. Friction drive mechanism. JOHNSON LABORATORIES, Inc. Dec. 19, 1938, No. 4203/40. Convention date, Dec. 24, 1937. Divided out of 522,946. [Class 80 (i)] [Also in Groups XXXVI and XXXV] A friction drive mechanism, particularly for operating the ganged permeability tuning units for wireless receivers described in the main patent, comprises a rotary operating rod having one or more circumferential grooves with diverging side walls and one or more operated rods attached to the member to which translatory movement is to be imparted, the operated rou extending across the grooves of the operating rod and being held in frictional engagement therewith by a spring which engages the operating rod and a roller on the side of the operated rod remote from the operating rod. The permeability tuner comprises a housing 10 and a shelf 11 enclosing and supporting shielding cans 38 in which the inductance coils and sliding cores are enclosed. The cores are attached to brackets carried on a plate member 26 adapted to slide beneath the shelf 11. Two parallel operated rods 39 are fixed at one end to a bracket 26a integral with the plate 26 and are located in grooves 36a formed in the rotary operating shaft 36 driven by the usual tuning knob 42. The rods are pressed into frictional engagement with the side walls of the grooves 36a by rollers 40 forced downwardly by a spring 41 which also engages the rod 36 so that rotation of the shaft 36 produces transverse motion of the rods 36, 39. Slipping of the frictional engagement is prevented by providing on the end of the shaft 36 a pinion 60 engaging with a rack 61. One operated rod engaging with a single groove may be used (Figs. 5 and 6 not shown) or a pair of rods may be arranged above and below a single groove (Figs. 7 and 8 not shown) the rods then being moved in opposite directions. A flat rod 70 having a rack 70a engaging with pinions 71b formed in the groove 71a is shown in Fig. 10.
Patent GB-898502-A (GB)
Title: Improvements in or relating to magnetic devices
IPC: H01F7/08
Filed: 1959-02-06
Abstract: 898,502. Magnetic holding devices; eddy current brakes. SOC. D'ELECTRO-CHIMIE, D'ELECTRO-METALLURGIE ET DES ACIERIES ELECTRIQUES DE UGINE. Feb. 6, 1959 [Feb. 8, 1958; May 6, 1958; Nov. 5, 1958], No. 4298/59. Class 35. A magnet assembly, e.g. for an eddy current brake or lifting magnet, comprises at least one pair of permanent magnets 1, 2 (Fig. 1a) the polarization of one of which is reversible by a current pulse through winding 7 so that the flux follows either the closed circuit 1, 3, 2, 4, as shown or a circuit which includes an air gap 5. The magnet material preferably has a coercivity only slightly higher than " soft " magnetic material and may be grain oriented. In the eddy-current brake shown in Fig. 11 eight pairs of stationary permanent magnets 63, 64 are disposed between rotatable discs 62 secured to a common shaft 61. Each pair of magnets is short-circuited by soft iron yokes 65, 66 when in the "off " polarization shown, but by applying a short pulse of D.C. to coils 68, 69 so as to reverse the polarity of magnets 63 while maintaining that of magnets 64, a magnetic circuit is established between diametrically opposite pairs of magnets through the discs 62, and eddy current braking of the discs results. Any number of diametrically opposite magnet pairs may be rendered operative providing a graded torque. In an alternative brake construction (Figs. 5-7, not shown) arcuate magnets spaced by soft iron bars, form a cylindrical structure at the ends of which segmental pole pieces, attached to the soft iron bars, define air gaps which are bridged by eddy-current discs pivoted coaxially with the cylinder. In the " off " state the magnets are short-circuited by the bars, whereas when " on " the flux traverses the discs. Alternatively the magnets may be straight instead of arcuate to give a " box " structure (Fig. 8, not shown) and they may be divided into three sets for sequential operation (Fig. 9, not shown), and one disc only may be provided. A lifting device (Fig. 14, not shown) incorporating the invention comprises two permanent magnets arranged between two plate-like pole pieces which either short-circuit the magnets or conduct the flux to magnetic material, e.g. a tube, to be lifted.
Patent GB-191357-A (GB)
Title: Process for obtaining and cleaning cellulose from wood and similar substances containing cellulose
Inventor: ERICH SCHMIDT
IPC: D21C3/20
Filed: 1922-02-14
Abstract: In a process for obtaining cellulose from wood and the like by treatment with chlorine peroxide and subsequently with alkaline lye, the chlorine peroxide is used in solvents, such as dilute acetic acid, which dissolve the lignin after it has been transformed by the chlorine peroxide.
Patent GB-247952-A (GB)
Title: Improvements in ferro-concrete floors
IPC: E04F15/08
Filed: 1926-02-16
Abstract: 247,952. Klinke, W., (Assignee of Jackson, A.). Feb. 18, 1925, [Convention date]. Reinforced-concrete floors.-A reinforced-concrete floor comprising main and transverse ribs and filler blocks is formed with the transverse ribs shallow so that they lie within the compression zone of the floor. For this purpose, the blocks m, n, Fig. 1, are of different heights; in Fig. 4, the main blocks r abut in a row and shallow blocks s spaced apart are laid thereon.
Patent GB-1102491-A (GB)
Title: Device for sonic and ultrasonic internal scanning of solid and fluid media
IPC: G01S7/52
Filed: 1965-02-02
Abstract: 1,102,491. Acoustic inspection devices. R. L. UPHOFF. 2 Feb., 1965 [21 Feb., 1964], No. 4496/65. Heading H4D. In a device for depicting the internal structure of an object by the acoustic pulse echo or absorption method, the overall sensitivity of the transmitting/receiving system is periodically varied such that every element of the object is scanned at several sensitivities. This ensures that received reply pulses having a wide dynamic range can be distinguishably recorded by a recorder with limited amplitude resolution. In the Fig. 1 embodiment a saw-tooth voltage of frequency f 2  unrelated to the acoustic pulse repetition frequency f 2  is generated by circuits 16, 17 and controls the gain of receiver amplifier 14. An intensity-modulated display of echo pulses is provided on oscilloscope 15, whose beam is deflected in accordance with the scanning movement of a transmitting/receiving transducer 13 over the surface of the object. The display may be photographed to give a twodimensional " echogram " of the object. In other embodiments the sensitivity is varied by (a) varying the transmitted pulse power in discrete steps by means of a stepping relay or electronic counterpart actuated at frequency f 1  (Fig. 4, not shown), by (b) applying the sawtooth voltage to vary the threshold level of a " valley clipping " circuit forming part of the echo-receiver amplifier (Fig. 5, not shown), or (c) by deriving a gain-control voltage from a random noise generator and applying this voltage to an amplifier receiving the reply pulses in the absorption method of inspection (Fig. 6, not shown). Separate transmitting and receiving transducers are used in the latter two embodiments. Instead of an oscilloscope, light-sensitive paper, electro-sensitive material or a storage tube may be used as the recording device. In further modifications the overall sensitivity may be varied by varying the receiver amplifier gain or clipping level in discrete steps.
Patent GB-795707-A (GB)
Title: Improvements in or relating to slopes
IPC: A47B88/20
Filed: 1956-02-14
Abstract: 795,707. Bracket tables; slopes. ROSS, H. H. Oct. 11, 1956 [Feb. 14, 1956], No. 4553/56. Classes 52(3) and 52(5) A sheet metal top 5 (shown in underside view) has an integral bent hook edge 0 extending its full length and a pair of foldable legs 7 with parts 8 adjacent the hooked edge which are substantially normal to the top 5. The device can be hooked on a drawer front or used as a book-supporting slope on a desk.
Patent GB-1488605-A (GB)
Title: Knitting machine needle
IPC: D04B35/04
Filed: 1975-02-03
Abstract: 1488605 Knitting machines AGULA SA 3 Feb 1975 [5 Feb 1974] 4571/75 Heading D1C A knitting machine needle has a shank 4 with a straight tapering front section 4a contiguous with the hook I and a rear section 4b of uniform width contiguous with the base part 5b of a butt 5, the rear section including an undulating part 4c, 4d to inhibit breakage of the hook during high speed knitting. The needle is made from wire, drawn and bent as appropriate, and then flattened and blanked. The undulations may be produced at the bending or blanking stage. Two cycles (as shown) or only one of undulation may be provided.
Patent GB-217624-A (GB)
Title: Improvements in or relating to corner staying machines, used in box making
IPC: B31B1/60
Filed: 1923-02-17
Abstract: 217,624. Harrison, J., and Harrison & Co., Ltd., J. Feb. 17, 1923. Machines for staying boxes. The tape T, in a cornerstaying machine, is fed to the anvil by a lever F<4> pivotied in the usual reciprocating feeder block F<2> and having a turned-up end F<5> cooperating with a block F<7> projecting from the block F<2>, the end F<5> nipping the tape by an upward movement. A spring F<8> attached at one end to the feeder block and at the other end to the link F<3> connecting the feeder arm F to the lever F<4>, relieves the lever F<4> on the return motion of the block.
Patent GB-139173-A (GB)
Title: Arrangement for blowing air through blast furnace slag, in particular for recoveringthe sulphur therein contained as sulphur di-oxide
IPC: C01B17/50
Filed: 1920-02-16
Abstract: 139,173. Diehl, L. H. Sept. 24, 1917, [Convention date]. Addition to 139,172. Sulphur dioxide.-The treatment of slag with air to obtain sulphur dioxide, as described in the parent Specification, is effected in a covered trough formed of sections a, b, c of hµmatite iron, into which the slag flows by an inlet d and escapes by an outlet l having a spout m, the levels being such that the slag seals both inlet and outlet. Air chambers extend along the side walls, and the air which becomes heated in them is discharged into the slag through nozzles o directed downwardly at an angle of about 30 degrees in nozzle bodies n .set in the sections b. The roof f is extended into the gas outlet beyond the blast openings to prevent the gas outlet becoming choked with sprayed slag. The forward section f<1> of the roof is hinged at r and can be raised by a rope s. A door g is provided in the front wall having a tapping-hole h with a spout i through which crusts of slag may be cleared out.