baber/WOPTO huggingface dataset:
Patent GB-453815-A (GB)
Title: Method of magnetically inspecting turbine blades
IPC: G01N27/84
Filed: 1936-02-05
Abstract: 453,815. Magnetic tests. JACOBS, F. C., 476, Pershing Drive, New Kensington, Pennsylvania, U.S.A. Feb. 5, 1936, No. 3490. Convention date, Feb. 5, 1935. [Class 37] A magnetic test for flaws in turbine rotor blades consists in establishing a concentration of magnetic flux in a radial direction from the rotor shaft, and applying magnetic material in order to determine the distribution of the flux and thus reveal defects in individual blades. A dispersion of magnetic dust may be formed while the turbine rotor is revolved therein, or the rotor may dip in a liquid bath containing magnetic particles. A paramagnetic liquid such as a nickel sulphate solution may be employed, or the liquid may be sprayed on to the blades. The magnetizing current of the order of 110 amps is supplied to coils 7b, 7c wound in opposition and located on the rotor spindle 5. The magnetic field due to the coils passes in a radial direction along the part 4 and is concentrated in the blades b. The rotor is supported in a test frame and may be turned by hand.
Patent GB-343715-A (GB)
Title: Improvements in or relating to control valves for single chamber compressed air brakes
IPC: B60T15/00
Filed: 1930-02-01
Abstract: 343,715. Fluid - pressure brakes. KNORR-BREMSE AKT.-GES., 9, Neue Bahnhofstrasse, Lichtenberg, and MÍLLER, E., 1, Loreleystrasse, Karlshorst, both in Berlin. Feb. 1, 1930, No. 3511. [Class 103 (i).] A control valve for a compressed air brake is provided with a diaphragm d which is reverted in the normal position and assumes a straight or curved conical shape in the extended position, the diaphragm unrolling in its outward stroke with its free surface in contact with the inner surface of the piston chamber. The ring f lining the control chamber decreases in size towards the side on which train pipe air enters the chamber so that the elasticity in the diaphragm cannot produce undesired movement. A flange k of elliptical cross section is clamped between rings e, f in the control chamber and the middle part of the diaphragm is clamped between the valve piston head and a plate i. The ring f may be made of an artificial resin such as that known under the Trade Mark " Bakelite " and may be provided with a drain bore g. A projection h on the diaphragm enters an aperture in the plate i to ensure correct assembly.
Patent GB-1189804-A (GB)
Title: Improvements in or relating to Pulse Shaping Amplifying Devices.
Inventor: KULE LUMIR
IPC: H03K3/57
Filed: 1969-01-22
Abstract: 1,189,804. Pulse generating circuits. SKODA, OBOROVY PODNIK. 22 Jan., 1969 [31 Jan., 1968], No. 3533/69. Heading H3T. A pulse having an initial portion of higher amplitude than the rest, more particularly for firing controlled rectifiers comprises a transformer having windings 2, 3 and 5 connected to a rectifier 4, a capacitor 6 and a switching device such as transistor 7. Capacitor is normally charged to the voltage of a supply connected between the upper terminal of winding 3 and the lower electrode of the capacitor. When transistor 7 becomes conductive capacitor 6 discharges through winding 5 producing the higher initial portion of the output pulse across secondary winding 2. Winding 3 has more turns than 5 so that the voltage across it exceeds the initial voltage across the capacitor and the rectifier is back-biased. As the capacitor discharges current flows in winding 3 and builds up until the whole of the supply voltage appears across it but as the winding has more turns than 5 it supplies a lower voltage to the secondary winding and the output pulse decreases to the lower value. Winding 8 may be provided with a magnetizing current to allow the whole of the magnetizing range of the core to be used.
Patent GB-231436-A (GB)
Title: Improvements in and relating to continuous rod cigarette making machines
IPC: A24C5/28
Filed: 1925-02-09
Abstract: 231,436. Universelle Cigarettenmaschinen-Fabrik J. C. M³ller & Co. March 28, 1924, [Convention date]. Cigarette-making machines.-In continuous-rod machines in which a cutter a is carried by a lever c pivoted at d to the cutter slide, the lever c is rocked by mechanism comprising a link f pivotally connected at g to an arm h which is rotatable about a pivot i. The link and arm f, h are pivoted at g to a connecting-rod k mounted on a crank l and, when in line, are at right-angles to the lever c, the rod k in this position being at right-angles to the arm and link h, f.
Patent GB-1441673-A (GB)
Title: Rotary kiln plants
IPC: C04B7/43
Filed: 1974-01-25
Abstract: 1441673 Burning cement raw meal F L SMIDTH & CO AS 19 Nov 1974 [25 Jan 1974] 03608/74 Heading F4B A rotary kiln plant for burning cement raw meal comprises a preheating and calcining unit 6, 7 and 10, a rotary kiln 1 followed by a rotary cooler 25 with an intermediate stationary cooler 20, a separate inlet 22 for cooling air to the latter and an outlet 21 for said air connected directly by a pipe 12 to the calcining unit 10. The kiln 1 is connected by a duct 8 to a suspension preheater 6 of the cyclone type and the calcining unit 10 having a fuel pipe 11. is connected to a similar preheater 7. The cooler 20 has a gas pervious grate 38 above the air inlet 22, a cooling air fan 24 and labyrinth seals 34 and 35 with the kiln 1 and cooler 25, said seals being connected by lines 36, and 37 with the inlet side of said fan 24. The rotary cooler 25 has planetary cooler tubes 29 discharging into a stationary casing 31. In a modification (Fig. 3) the stationary cooler has an inclined grid (40) and the rotary cooler has lifters (47). Another modification (Fig. 4) has a fluidized bed grid plate (44) in the stationary cooler. Cooling water may be injected into cooler 20 and/or cooler 25.
Patent GB-348173-A (GB)
Title: Improvements in vehicle signals
IPC: G10K9/13
Filed: 1930-02-03
Abstract: 348,173. Audible signals on vehicles. MOTO METER GAUGE & EQUIPMENT CORPORATION, Long Island City, New York, U.S.A. Feb. 3, 1930, No. 3652. Convention date, Feb. 18, 1929. [Class 79 (iii).] A vehicle signal 5 of the hornless electricallyoperated diaphragm-vibrator type is clamped to a front cross-bar 4 centrally of the radiator by means of arms, not shown.
Patent GB-175278-A (GB)
Title: Improvements in and relating to grinding apparatus
IPC: B24B5/22
Filed: 1922-02-08
Abstract: 175,278. Heim, L. R. Feb. 8, 1921, [Convention date]. Disc apparatus; rollers, treating.-Apparatus for grinding cylindrical and tapered bodies comprises a grinder 28 carried by a shaft mounted in bearings 23 on a transversely slidable carriage 20a and rotated by a pulley 25, the carriage being locked in position by bolts 22. A lower carriage 13b slidable longitudinally of the machine has an upper carriage 13a rotatable thereon on curved guides 29, 30. A headstock 14 mounted on the carriage 13a has a face-plate 17 driven by a pulley 15, and a tailstock 19 is slidable on the carriage 13a. The work may be mounted between the head and tail stock and rotated by a dog. An attachment, for grinding a large number of articles, such as rollers, comprises a support 31 mounted on the carriage 13a and a wheel 55, preferably of emery, mounted on an arbor 54 centred between the head and tail-stocks and driven by a dog. A carriage 37 moved transversely on the support 31 by a hand-operated screw 34 is yieldingly held in position by a spring 39 interposed between the head of a screw 40 end a cross-piece bearing against the sides of a slot in the support 31 and through which the screw passes. Parallel plates 46, 48 are bolted to a flange 43 on the carriage 37, and between these plates is clamped a carrier 49 having a hard-steel insert 50. Slots in the carrier 49 permit of it being adjustably inclined downwards towards the headstock. The rollers 56 to be ground are fed by gravity from a trough 52, removably mounted on the machine, to the carrier 49, which supports them between and in contact with the quickly rotating wheel 28 and the slowly rotating wheel 55. The latter tends to lift the roller and thereby rotates it, while the former exerts comparatively little friction on the roller which it simply grinds. As the carrier 49 is inclined with respect to the axis of the wheel 55, the latter feeds the rollers longitudinally of the machine. The rate of feed is varied by altering the inclination of the carrier 49, which may be replaced by another of different thickness according to the diameter of the work to be accommodated.
Patent GB-839839-A (GB)
Title: Improvements in and relating to induction heating apparatus
Inventor: GULLICK OLIVER FRANCIS
IPC: H05B6/02
Filed: 1956-02-07
Abstract: 839,839. Heating cutter blades by induction. BRITISH THOMSON-HOUSTON CO. Ltd. Feb. 7, 1957 [Feb. 7, 1956], No. 3822/56. Class 39(3) An induction heating machine for heat treating the helical blades of a cutting cylinder of a lawn mower or like equipment comprises means for producing relative movement axially of the cylinder between the cylinder and an induction heating element for the cutter blades so as to introduce a blade into operative relation with the heating element and to rotate the cylinder during said relative movement whereby the blade is maintained in operating relationship with the heating element, means also being provided for indexing a carrier for the cylinder towards the end of the axial relative movement so that another cutter blade is presented to the heating element when the next working movement is effected.' As shown, a cutting cylinder 1 to be treated is mounted in a carrier 2 movable vertically. The indexing means comprises a toothed wheel secured to the carrier and engageable by a pawl 6 pivoted on an arm 4 which is rotatable on the carrier but is provided with frictional restraint. A pin 8 engages in a slot 7 in the pawl and projects from an arm 9 rotatable about the same centre as arm 4, the arm 9 being connected through a lost-motion connection 10 to one arm of a bell-crank lever 11. A striker 16 provided on a fixed part of the machine actuates the lever through its other arm. The heating element (not shown) is mounted on a support which also carries rollers (not shown) for bearing on the sides of the blades so that as the blade cylinder is moved axially with respect to the heating element the rollers cause the cylinder to rotate about its axis and to maintain the blade in the required positional relationship with the element. The cylinder is free to rotate at all times except when indexing of the carrier is being carried out. As the carrier comes to the end of its upward movement and a blade has moved clear of the inductor and rollers, the lever 11 contacts the striker 16, is rotated anti-clockwise, and causes the arm 9 and pin 8 to move relatively to the frictionally restrained arm 4. The pawl 6 thus pivots on the pin 5 and its nose engages the wheel 3 which is rotated together with the carrier. Upon the pawl reaching a stop pin 17 any further angular motion of the lever 11 only compresses a spring 15 in the lost-motion connection 10. As the carrier moves downwardly the lever 11 rotates clockwise, and the pawl is withdrawn from the wheel 3 ready for the next carrier-rotation operation. The amount of angular rotation of the carrier is determined by the adjustment of a backstop. The lever 11 may be spring-biased in the anti-clockwise direction.
Patent GB-719528-A (GB)
Title: Improvements in or relating to buffer stops on railway tracks
Inventor: GROSSMITH GEORGE WILFRED
IPC: B61K7/18
Filed: 1951-07-26
Abstract: 719,528. Buffer stops. STRACHAN & HENSHAW, Ltd. May 2, 1952, [July 26, 1951; Sept. 11, 1951.] Nos. 3857/53 (Divided out of 17776/51.) and 3858/53 (Divided out of 21395/51.). Class 104(2). A buffer stop is retractable into the rail track. The buffer stops 15 are mounted on cam members 11 keyed to a shaft or shafts 12. The stop 15 is raised from the inoperative to an operative position by a T-shaped head portion 21 of a ram rod 20 of a hydraulic ram 18 located in a pit 19 below the rail track. The head 21, when operated, slides along a support surface 22 to bear against a cam surface 17 on the member 11 and raise the buffer 15 to the operative position in which position it is held by the head 21 coming to rest beneath the ends 23 of the surface 17. Any stresses to which the buffers 15 are subjected by the waggons 14 when in the operative position pass transversely through the head 2 1 and are absorbed by support surface 22 and the pit floor. The apparatus may be provided with one central, or the usual two buffers.
Patent GB-772802-A (GB)
Title: Improvements in or relating to apparatus for mass spectrometry
IPC: H01J49/34
Filed: 1954-02-10
Abstract: 772,802. Mass spectrometers. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Feb. 10, 1954 [Feb. 13, 1953], No. 3916/54. Class 39(1). [Also in Group XL(c)] In a mass spectrometer in which ions created in the zone 4, 5 travel to a collector 3, the current-density of the ion stream is modulated and the phase-difference between the densities is measured at two separated points in the ion stream, or oscillations may be generated by positive feedback. The phase-difference or the frequency of the oscillations indicates the nature of the ions. A phasemeter 12, such as described in Specification 731,039 [Group XL(c)] is connected between the collector 3, or an earlier electrode, and the control electrode 7 of an electron gun 6, 7, 8 which provides an electron beam for creating the ions in the zone 4, 5. An oscillator 17 provides the modulations which may be fed alternatively to the electrode 19. For generating oscillations, the feedback is to electrode 7 or 19 and the oscillator 17 is omitted.
Patent GB-435029-A (GB)
Title: Improvements in or relating to the taking-up of materials on to rotating beams, rollers or the like
IPC: D02H3/00
Filed: 1934-02-07
Abstract: 435,029. Controlling variable - speed gearing. SHAW, W., Cop Royd, Honley, near Huddersfield. Feb. 7, 1934, No. 3978. [Class 80 (ii)] [See also Groups IX, XVI, XXVI, and XXIX] When winding yarns, fabrics, wire, kinematograph films, &c. on to beams, rollers, &c., the variable speed driving mechanism of the beam &c. is controlled to so vary the speed of the beam &c. a, Fig. 5, that the tension and speed of the fabric are kept constant by means of a screw and nut r<7>, t<1>, one of which is driven at a uniform speed by an electric motor or other means, and the other of which is driven from a roller b in contact with the fabric &c. being wound. Any difference in speeds of the screw and nut causes an axial motion of one part and a consequent adjustment of the variable speed driving mechanism which may be of any type, e.g. expanding pulleys u<3>, u<4>, coned pulleys v, Fig. 6, electric, or hydraulic. In the apparatus shown in Figs 2 and 4, the first motion shaft c carries a pinion f gearing with two pinions g, h, mounted in a casing i filled with fluid, the circulation of which is controlled by rotary valves k. These valves are set by screw and nut mechanism m<1>, so that the casing i and consequently a shaft n driven therefrom rotates at any desired speed. This constant speed shaft n drives the winding-on beam &c. at a variable speed through a shaft s<3> gearing s<2>, s<1> and a second fluid filled casing n<3> similar to the casing i, the valves o of which corresponding to the valves k are adjusted by screw and nut mechanism, the nut r<2> rotating at uniform speed with the shaft n and the screw r<3> being rotated by a wheel r<4> and chain from a roller in contact with the fabric &c. being wound. Axial motion of the nut r<2> and a second quick pitched screw r rotates the spur wheel p and the valves o.
Patent GB-1260387-A (GB)
Title: Transducers
Inventor: YAMAMURO ISAO
IPC: H04R23/00
Filed: 1969-01-23
Abstract: 1,260,387. Piezoelectric transducers. PIONEER ELECTRONIC CORP. 23 Jan., 1969, No. 3981/69. Heading H4J. An audio transducer comprises a sheet of molecularly oriented high molecular weight polymeric piezoelectric flexible material having electrodes on two opposite surfaces. A potential difference across the electrodes results in or from mechanical strain in the sheet at an oblique angle to the direction of molecular orientation of the material. Suitable natural materials are collagen (animal tendon), silk fibre and wood cellulose. Synthetic materials include poly-8- methyl L glutamate and poly-8-benzyl glutamate. There may be a square sheet rigidly held at two opposite corners and resiliently held at the other two corners (Figs. 3, 4, not shown). Two sheets of the material in the same plane may act to provide a monaural gramophone pickup (Fig. 7, not shown), or two sheets at right angles (Fig. 9) may provide a stereo pickup. Another stereo pickup has four diagonally arranged sheets with the stylus at the centre (Fig. 10, not shown). A loud-speaker has a V-shaped sheet 51 (Fig. 12) of the material, the apex of the sheet being connected to the apex 59a of a conical diaphragm 59. Alternatively the sheet 51 is planar. A sonar receiver or transmitter comprises a sheet 61 of the material, opposite ends of which are secured to a frame 60 (Fig. 16). Hollow cylindrical members 81a, 81b (Fig. 19) formed from the sheet material are sealed at opposite ends to walls 87 and have between them a diaphragm 86. The diaphragm may be apertured and if a valve is provided at each aperture a flute-like sound is produced. Alternatively the ends of the cylindrical members may be open and one may be coupled to a horn (98), Fig. 20 (not shown), to provide a loud-speaker. A sheet 102 (Fig. 21) of the material may be secured at two opposite edges to walls 104 on a base-plate 101, spongy material or fluid 103 imparting resiliency. A number of sheets 102 may be mounted side by side on a common baseplate 101 (Fig. 22, not shown) to provide a multistereo acoustic effect. Instead of the sheet being curved as in Fig. 21 it may be angled along its centre line, being supported by a resilient upright (123), Fig. 25 (not shown). A multidirectional loud-speaker has sheets 132 of the material supported by resilient struts 133 about a base 131 (Fig. 26). Alternatively a sheet of the material is formed into a tube to provide an omnidirectional loud-speaker (Figs. 23, 24, not shown).
Patent GB-113858-A (GB)
Title: Improvements in or relating to Hooks for Haulage Purposes.
Inventor: BROWNE PATRICK
IPC: B66C1/34
Filed: 1917-03-20
Abstract: 113,858. Browne, P. March 20, 1917. Apparatus fitted to haulage apparatus. - A hook for haulage purposes, such as drawing ploughs, is provided with a rotatable part 14 secured to a slotted bar 8, 10 which is secured at its upper end to a crosshead 22 acted upon by a spring and sliding in slots 4 in a casing 1 provided with graduated marks to indicate the load.
Patent GB-393547-A (GB)
Title: Improvements in connections between pistons and their connecting rods
IPC: F16J1/16
Filed: 1933-02-09
Abstract: 393,547. Connecting-rods. NAAMLOOZE VENNOOTSCHAP KROMHOUT MOTOREN FABRIEK D. GOEDKOOP, Jr., 2, Ketelstraat, Amsterdam. Feb. 9, 1933, No. 4048. Convention date, Aug. 2,1932. [Class 122 (i).] In a small end of the kind described in Specifications 213,475 and 301,906, [both in Class 122 (i), Engine and like cylinders &c.], wherein the gudgeon pin 5 is secured to the piston or rod and rolls in a frame 7 on the rod or piston respectively, the bearing surface 9 adjusts itself relatively to the pin by oscillation about an axis 10.
Patent GB-290711-A (GB)
Title: Improvements in drinking bowls or troughs for animals
IPC: A01K7/04
Filed: 1927-02-14
Abstract: 290,711. Bingham, G. C., and Bing- ham, A. G. S. Feb. 14, 1927. Cistern-supply valves. - A supply control valve of the float type for drinking bowls or troughs for animals or for other purposes comprises a flexible rubber or other tube C attached to the inlet pipe B and adapted to be kinked to cut off the supply as the float D rises. The parts are screened off from the main drinking chamber.
Patent GB-1381234-A (GB)
Title: Electrical terminal
IPC: H01R4/18
Filed: 1973-01-26
Abstract: 1381234 Printed circuit board connector FORD MOTOR CO Ltd 26 Jan 1973 [24 Feb 1972] 4073/73 Heading H2E An electrical terminal integrally formed from a single metal strip comprises a bottom wall 12, from which side wall portions 14, 16 extend bearing at the top top wall portions 20 and 26 of equal area and notched to form an opening in the top surface and bearing top surface parts 38 and 44, and from the front edge of which extends an element 52 comprising in order arcuate spring member 53 with surface portion 54 stressed against rear edge of 38, 44, and lead portion 56, a weakened section 58, contact surface 60, sloping downwards to the rear, spring member 62 and foot 64 touching bottom wall 12, from the rear edge of which lead gripping means 72 extends. Top wall portions 20 and 26 are notched to provide openings 30, 34 out of which lead portion 56 extends and 32, 36 through which member 62 re-enters, stop 50 being provided on the intervening surface. The slope of 60 is not more than 3 degrees. Portions 22 and 28 form guides for terminal insertion. Spring member 62 tapers towards the foot 64. Member 63 extends to point 66 where it is tangential to imaginary horizontal plane 68. Critical placement of 58 at 66 causes flat contact of 6 with circuit board and thus parallel circuit paths through 53 and 62. Opening 70 is to accommodate a locking finger which may be as U.S.A. Specification 3,601,760.
Patent GB-800002-A (GB)
Title: Apparatus for conveying rounds of ammunition from a magazine to a hoist
IPC: F41A9/02
Filed: 1957-02-06
Abstract: 800,002. Ammunition feed mechanism. BOFORS AKTIEBOLAGET. Feb. 6, 1957 [Feb. 22, 1956], No. 4092/57. Class 92 Relates to apparatus for conveying rounds of ammunition from a magazine to a hoist and comprising a rotary drum with compartments that are open towards the side of the drum so that each compartment during a step-by-step rotation of the drum is made to pass a position in which it can be fed with a round and a position in which the compartment forms a part of a hoist through which a round in the compartment can be removed. According to the invention, the compartments 10-15, Fig. 2, of the drum 6 are arranged in groups 10-11, 12-13, 14-15 of equal numbers and are such that all the compartments of a group can be fed simultaneously from parallel feed shafts 5. The drum 6 can be provided with a greater number of compartments and more feeding shafts can be arranged around the drum 6. The compartment 15, Figs. 2 and 4, forms an extension of a hoist drum 7 through which the rounds are raised by an endless chain 27 having lugs 31 which engage under the rounds through a slot 29 in a wall 9 encircling the drum 6 and a slot 30 in the hoist drum 7. In each compartment is a spring plunger 17 adapted to prevent outward movement of the round during rotation of the drum and at the innermost part of each compartment is a pivoted lug 19 which in every position except that in which the compartment forms an extension of the hoist extends over the rim of the round and prevents it tipping. The lugs 19 are operated by a cam (not shown). The wall 9 encircling the drum 6 is extended to form two parallel walls enclosing the two feed shafts 5 which are separated by a T-shaped rail 8, the upper flange of which engages over the rims of the rounds. The feeding means consists of four feeding members 21-24, Fig. 3, of which members 21, 23 are rotatable by not axially movable bars provided with flaps 25 while the members' 22, 24 are bars which are both rotatable and movable axially and have flaps 26. The members 22, 24 with the flaps 26 in the gripping position shown can convey a distance corresponding to the distance between the flaps, the flaps 25 of the members 31, 23 being vertical during such movement. At the end of the movement the flaps 25 are turned down to prevent the rounds from tipping and at the same time the flaps 26 are turned up to permit a return movement of the members 22, 24. The whole feeding movement is carried out during the time the drum 6 is moved round two steps and during a pause when a round is removed. Groups of three compartments may be employed and fed by three feeding shafts. Additional feeding shafts 32, Fig. 5 (not shown), may be used to feed ammunition of a kind different from that in the shafts 5.