baber/WOPTO huggingface dataset:
Patent GB-716646-A (GB)
Title: Improvements in egg-cups
IPC: A47G19/28
Filed: 1952-04-07
Abstract: 716,646. Egg cups. STRASZAK, A. April 7, 1952 [April 11, 1951; July 20, 1951], No. 8785/52. Class 128 An egg cup has at least three arms 1, 1<SP>1</SP>, 1" turnable about horizontal pins 2 and urged to grip an egg O by a spring 8, Fig. 3, contained in a cylindrical housing 3 supporting the pins, and has around the housing, a turnable sleeve 9 formed with notches 10, Fig. 2, which make way for the arms to open, and with shoulders 11 which lock the arms in their fully open position. The spring may be located around a rod 4, Fig. 3, along which slides a cylindrical block 7 encircled by a groove which receives a hooked lobe 6 at the lower end of each arm. The upper end of each arm may carry a hard point or edge 13, Fig. 2, for cutting the egg. Instead of the sleeve 9 a triple cam may be fitted on top of the housing 3, coaxial with the rod 4. The egg cup may be mounted on a saucer 5. Alternatively, two or more egg cups may be mounted on a tray.
Patent GB-258177-A (GB)
Title: Improvements in pit-tubs, wagons and the like
IPC: B61D11/02
Filed: 1926-04-01
Abstract: 258,177. Weddell, A., and Tolhurst, W. T. April 1, 1926. Corves; sides, floors.-In building up the body of a vehicle such as a pit tub or wagon, the vertical edges of the sides c and ends e, f are bent over to form complementary hook portions g<4>, g which are brought into engagement by arranging the sides or ends, as the case may be, in position within a vertically flanged bottom a and giving the ends or sides an horizontal outward sliding movement relative thereto. The pressure of the load normally tends to hold the parts in engagement, but positive securing-means, such as anglestraps i at the upper corners and bolts y engaging the flange a<2> at the lower edges are provided. A flat-bottomed tub is shown in Figs. 1 and 2, the ends e, f being placed in position first and the sides c being slid into engagement therewith. In the case of a well-bottomed tub, to which a buffer beam x, Fig. 4, of the construction described in Specification 222,705, [Class 103 (v), Railway &c. vehicles, Draught &c. appliances for], is to be applied, a slot a<4>, Fig. 3, is made near the upper edge of the vertical wall a<5> of the wall a<3> to accommodate the end wall of the buffer beam. Relative vertical movement between the sides and ends may be prevented by providing the hook portions g, g<4> with end closure pieces or with cooperating indentations or corrugations.
Patent GB-127403-A (GB)
Title: A Combined Safety Window Catch and Locking Bolt.
Inventor: CAREY HENRY GEORGE
IPC: E05C1/08
Filed: 1918-05-29
Abstract: 127,403. Carey, H. G. May 29, 1918. Latches, sliding; catches, yielding.-A combined safety window catch or holder and locking-bolt suitable for locking one or more sliding sashes or venetians in a railway carriage, comprises a cylindrical bolt B slidable by gravity with or without the assistance of a spring N in an inclined hole A in the frame, and having at the front end a flattened hook or tongue H which engages a slotted plate K on the sliding sash. Semi-cylindrical notches O, P on the underside of the catch co-act with a notched bolt E which can be turned to lock the sash when in engagement with the notch O, and to retain the catch free of the sash when in engagement with the notch P. A single bolt E can thus lock several sashes according to the number of notches R.
Patent GB-826783-A (GB)
Title: Electrical supply regulators
Inventor: MILNES ARTHUR GEORGE
IPC: G05F1/44
Filed: 1957-03-19
Abstract: 826,783. Automatic voltage or current control systems. NATIONAL RESEARCH DEVELOPMENT CORPORATION. March 19, 1958 [March 19, 1957], No. 8941/57. Class 38(4). In an electrical supply regulator, an output voltage or current is controlled by a power transistor switched on or off by a square-wave signal, the pulsewidth of which is varied bv a network responsive to change in the output voltage or current. An emitter-base circuit of a power transistor 40 is connected in series with a direct voltage input and a smoothing choke 41. A regulated output voltage across terminals 12, 13 feeds a bridge having resistive arms 15, 16 and 17 and a zener diode, 14. An output from the bridge, amplified by transistors 18, 20 feeds a control winding 21 of a magnetic amplifier MA. A transistor oscillator comprising transistors 32, 33 generates a square-wave switching signal of fixed frequency, which supplies the magnetic amplifier through a centre-tapped secondary winding 27, 28 of a transformer 29. The current in the control winding 21 coupled to main windings 22, 23 of the magnetic amplifier pulse-width modulates the square wave current flowing through a resistor 26. The voltage between the base and emitter of power transistor 40 is the sum of a bias voltage, derived from a zener diode chain 38 and the instantaneous voltage across resistor. 26, the power transistor 40 being switched so as to maintain the output voltage constant. A rectifier 42 provides a path for the smoothed load current during the cut-off period of the power transistor. In another embodiment, Fig. 3, an unregulated supply 10, 11 supplies a transistor oscillator 32, 33 through a power transistor 40. The voltage across output terminals 50, 51 is derived from a secondary winding 47 of a transformer 45, fullwave rectified by a bridge, 48. A voltage sensing circuit 52 is connected across the output terminals 50, 51 and the fixed frequency signal to a magnetic amplifier 44 is derived from a secondary winding 46 of transformer 45.
Patent GB-145900-A (GB)
Title: Improved means for converting an open vehicle body into a closed vehicle body
IPC: B60J7/16
Filed: 1919-04-09
Abstract: 145,900. Morley, C. C. April 9, 1919. Hoods, opening tops, &c.-A rigid structure is pivotally mounted on a longitudinal axis on a vehicle body so that it may rotate to a position above the vehicle body to form the support for a hood, or to a concealed outof-use position at the side of body. The structure comprises two or more transverse frames B, C pivoted to the body at D and carrying a longitudinal frame G which is connected by flexible material V to a second longitudinal frame F. In the out-of-use position shown by full lines in Fig. 3, the frames F, G, and flexible material V lie at one side of the body, but when the frames B, C, have been rotated through 180 degrees, the frames F, G form the sides of the hood, the flexible material V forming the top. The flexible material is kept taut when the hood is in use by springs E, fixed at one end X<1> and sliding at the other end X on the frames B, C, the end X of each spring E, being connected by a cord to a second spring H. The springs E are provided with notches 1, 2, 3, which engage rods 4, 5, 6 in the flexible material. The front end of the frame F is fitted with a tubular member P working on a curved guide-rod Q, and a strip X on the frame C engages a groove N in the rear end of the frame F. Doors in the frame G are provided with pegs S fitting into recesses R in the doors W of the body, the hinges of the two sets of doors being in line. In the arrangement described in the Provisional Specification, the springs E, H, are omitted, the notches 1, 2, 3, being formed in the frames B, C; and the weight of the longitudinal frame G is balanced by springs.
Patent GB-784297-A (GB)
Title: Improvements in or relating to friction gear transmission
IPC: F16H57/027
Filed: 1954-04-05
Abstract: 784,297. Variable-speed gearing. WEISEL, Z. V. April 5, 1954 [June 23, 1953], No, 8959/56. Divided out of 784,295. Drawings to Specification. Class 80 (2). The subject-matter comprises most of that of Specification 784,295, but the claims differ.  Specification 784.296 also is referred to.
Patent GB-566021-A (GB)
Title: Piezo-electric crystal assembly
IPC: H03H3/04
Filed: 1943-06-04
Abstract: 566,021. Piezo - electric crystals. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. June 4, 1943, No. 8967. Convention date, June 4, 1942. [Class 40 (v)] A piezo - electric crystal has an input electrode A, an output electrode B and earthed electrodes C, D. The earthed electrodes C, D are of larger area so as to have an overlapping portion which effectively prevents the capacitative transfer of energy between the input and output electrodes. The line of division between the electrodes may be transverse, longitudinal, diagonal or zig-zag so as to facilitate the engagement of clamping means appropriate to the mode of vibration. Specification 379,248 is referred to.
Patent GB-348784-A (GB)
Title: Improvements in or relating to methods of broadcasting by directional radiation
IPC: H01Q21/20
Filed: 1930-03-20
Abstract: 348,784. Directive wireless signalling. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. March 20, 1930, No. 8987. Convention date, April 24, 1929. [Class 40 (v).] Relates to a system of ultra short-wave broadcasting in which radiation is concentrated within a cone of which the transmitter is the apex and the visible horizon the base. Dipole oscillators 4 .. 11, Fig. 2, are arranged in a ring around the focal line 3 of a reflector 17 formed by rotating a parabola about its directrix 2, the reflector being mounted at a height above the ground corresponding to the desired range of reception. A series of such oscillator units may be set one above the other. The reflecting surface 2 may be formed, as shown in Fig. 3, by rotating a parabola about an axis 4 slightly inclined to the directrix 3. This distributes the radiated energy in such a way that the beams reaching distant receivers contain more energy than those falling nearer the transmitter. A further directive effect in the horizontal plane may be added to that in the vertical plane by employing a ring of transmitters 1 . . 6, Fig. 4, each radiating energy within the angle d. Interference between the beams is minimized by imposing frequency differences, or a carrier " wobble," or by using highly-damped waves.
Patent GB-764949-A (GB)
Title: Improvements in or relating to reversing electro magnetic drivers
IPC: F16D37/02
Filed: 1955-03-28
Abstract: 764,949. Transmitting mechanical power; magnetic powder clutches. SMITH & SONS (ENGLAND), Ltd., S. March 28, 1955, No. 9029/55. Classes 35 and 38 (4). A prime-mover P is connected to a pair of input shafts 5, 7 (for forward and reverse drive) of a gear-box 3 through two magnetic particle couplings embodying a common driving member 23 surrounding driven members 21, 15 arranged side-by-side and connected, respectively, to the shafts 5, 7, the common member 23 being centrally supported by a bearing 43 located between the driven members on the shaft 5 and being driven by the prime-mover through a coupling 61, 57, 49 which allows a small degree of articulation. As shown, articulation is provided by the pair of flexible discs 61, but in other constructions a single flexible disc may be employed. The spacing between flexible discs 49 at the other end of the coupling prevents undue articulation by these but allows axial yield. In another construction the two thin discs 49 are replaced by a single thick rigid disc.
Patent GB-573296-A (GB)
Title: Improvements in and relating to grinding mills
IPC: B02C15/16
Filed: 1944-05-12
Abstract: 573,296. Grinding mills. COOPER, C. J. May 12, 1944, No. 9052. [Class 59] A mill comprises a rotatable pan and one or more ball-like grinding elements each rotatable about its axis independently of the pan. In the form shown, the elements 12 are rotatably mounted by their stems 13 which are fitted with gears 30 in mesh with a central gear 31 on a shaft 17 and are carried-by the arms. of a freelymounted yoke 15. The balls are mounted in a pan 10 carried by a sleeve 41 and the sleeve 41 and shaft 17 are fitted with bevel wheels 33, 32 in gear with planet gears 31, 34 driven by a bevel gear 36 from fast and loose pulleys. The yoke is subjected to adjustable vertical pressure by a rod 18, and the pan or shaft 17 can be stopped by means of an arm 47 or clutch 44 respectively. The pan is fitted with a discharge spout 43 and with an internal deflector 42. In a modification, the stems of the balls are fitted with radial vanes and are driven directly from the pulley shaft by belt gearing.
Patent GB-494819-A (GB)
Title: Improvements in and relating to the production of three-dimensional ornamentation inplane surfaces
IPC: B44B3/00
Filed: 1938-03-24
Abstract: 494,819. Carving wood. NIEUWENDIJK, C. VAN DEN. March 24, 1938, No. 9057. [Class 145 (i)] Plane surfaces are ornamentally recessed by pantographic apparatus in which a conical cutting tool and a conical tracer are employed, the model consisting of line members raised from a base while the tracer is guided only by the contact of its conical surface with the line members so that it may move in three directions. The tracer 9 is carried by a rod 1 slidably mounted in a pivoted supporting block 2 while the cutter 10 and its electric driving motor 11 are mounted on a member which is slidable on the rod 1 and is connected thereto by pantographic mechanism. The dimensions of the cones 9, 10 are in the same proportion as the pantographic ratio. When cutting, for example, a triangular recess, as shown in Fig. 5, the tracer 9 moves on the inside of the triangular raised model, shown in Fig. 3, so that it always engages two of the upper edges of the triangle, the dimensions being such that the apex of the tracer never touches the base.
Patent GB-1125348-A (GB)
Title: Improvements in or relating to the extraction of metal values from aqueous media
Inventor: SPITZER ERNST LEOPOLD THOMAS M
IPC: C01G53/00
Filed: 1967-02-27
Abstract: 1,125,348. Extraction of metal values. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 27 Feb., 1967, No. 9127/67. Heading C1A. [Also in Division C2] Metal values are selectively separated from an aqueous medium by liquid-liquid extraction, wherein an acidic aqueous medium containing halide ions and three or more metal values in solution and/or suspension is contacted with a cationic extracting agent to extract at least one of the metal values, whereupon the phases are separated from each other, and the raffinate phase is contacted with an anionic extracting agent to separate at least one further metal value from the aqueous phase, one or more of the respective metal values being subsequently recovered, if desired, from one or both of the extract phases and/or from the remaining raffinate phase. The mutual miscibility of the extracting liquid with the aqueous phase in each case is below 1%, and the contact between the aqueous and organic phases during the extractions is promoted by vigorous stirring until equilibrium between the phases is attained. Co-current or counter-current liquid-liquid extraction techniques may also be used. The cationic extracting agent may be a salt derived from an organic base, e.g. the onium compounds: sulphonium, ammonium and phosphonium salts in the halide or sulphate form having an " effective chain length " as defined of at least 9 atoms, used as a solution in an organic solvent, preferably chloroform. The normality of the acidic aqueous medium is not more than 2N, and the halide ions are preferably chloride ions, particularly in the form of NaCl. The cationic extraction agent is used to remove mainly Fe(ITI) from the aqueous medium which may be an acidic leach from ores containing the metal values as sulphates in dilute H 2 SO 4 . The anionic extracting agent may be a carboxylic acid and/or a salt thereof, e.g. " Versatic " acid (Trade Mark) and is applied as a solution in an organic solvent, preferably kerosene. The extraction of the raffinate phase with the anionic extracting agent is effected at a pH substantially at or above the pH of hydrolysis of the metal value to be extracted, but below the pH of hydrolysis of the other metal value(s) present. The pH is adjusted by neutralization with a base, the preferred technique consisting of simultaneous neutralization and extraction. Cu(II) is extracted in a pH range of 3.5 to 4À5 and Co(II) and/or Ni(II) in a pH range of 5À5 to 6À5. The organic extracts may be backwashed in each case with a dilute mineral acid, and the cationic and anionic extracting agents recovered can be used again.
Patent GB-440326-A (GB)
Title: Improvements in automatic brake gear for mechanically propelled vehicles
IPC: B60T7/12
Filed: 1934-03-24
Abstract: 440,326. Brakes for motor vehicles. BOOTH, J. I., and BOOTH, J. H., Idris, Lichfield Road, Four Oaks, Sutton Coldfield. March 24, 1934, No. 9240. [Class 103 (i)] In a device for preventing rearward movement of a motor vehicle when the gear is in forward drive and forward movement when the gear is in reverse by means of rollers wedging in recesses between a fixed member and a member in driving engagement with a shaft between the engine and the propeller or cardan shaft, a train of rollers is arranged in each recess. In Fig. 2, trains of rollers 13 are arranged in recesses formed between faces 12 on a member 11 splined on the shaft 8 extending from the gear-box to the clutch and a ring 10 disposed adjacent the gear-box and splined to a casing 21 fixed to the gear-box. A spring-pressed follower 14 urges the rollers into engagement with the faces of the recesses. The rotary member of the device may instead be connected to the constant mesh gear-wheel shaft. In Fig. 3, the device is arranged adjacent the clutch, the inner member 11 being secured to an extension 28 of the fixed casing 21 and the outer member 10 to a housing 25 carrying the clutch plate 23. The fly-wheel and the engine shaft are shown at 22, 24 respectively. The rotary member of the device may be coupled to the shaft by dogs or clutches so that the device may be put into and out of operation under the driver's control and this control may be interconnected with the clutch control so that the device is operative only when the clutch is disengaged.
Patent GB-637907-A (GB)
Title: An improved method of and apparatus for polishing glass
IPC: B24B7/24
Filed: 1948-04-01
Abstract: 637,907. Polishing glass ; pads revivers &c. PILKINGTON BROS., Ltd. April 1, 1948, No. 9272. Convention date, April 2, 1947. [Classes 19 and 60] Apparatus for polishglass comprises a first tool having a number of pads 3, 4, 5 to operate on one surface of a ribbon of glass, and a second tool including a single pad 2 to operate on the opposite surface of the ribbon, the tools being rotatable about aligned axes and the pads 3, 4, 5 lying wholly within the area of the pad 2. The pads 3, 4, 5 are rotatably mounted on the limbs of a spider rotated by a shaft 11. The pad 2, mounted on a shaft 10, is provided with a recess 17 and slots 12, 13, 14 to facilitate distribution of the polishing agent which may be fed from the centre or the periphery of the pad. The shafts 10, 11 are rotated in opposite directions and alternate pairs of tools are inverted.
Patent GB-232946-A (GB)
Title: Drawing device
IPC: A47B27/12
Filed: 1925-04-08
Abstract: 232,946. Koch, H. April 25, 1924, [Convention date]. Easel stands. - A counterbalanced drawing- board 10. adapted to be set and clamped at any height and inclination, is pivoted at 9 to the upper ends of vertical struts 6, which are pivotally connected to the free ends of parallel links 4, 5, respectively pivoted at 2, 3 to a vertical column 1. A rod 7 pivoted to one of the links 5 passes through a bush 8 rotatably mounted on the column and can be secured by means of a clamping-screw to hold the drawing-board at a set height. A similar rod 11 for adjusting the inclination is hinged to the frame of the drawing-board and is slidable within a rotatable bush 12 supported by a bracket 13 on the strut 6. A counterbalance weight 25 is adjustably mounted or. either of the parallel links 4, 5 to facilitate the adjustment of the height of the drawing- board. The bars 4 are provided with extensions carrying stops 14, which support the drawing- board when it is folded completely down into a horizontal plane.
Patent GB-844601-A (GB)
Title: Improvements in or relating to warping machines
IPC: D02H13/16
Filed: 1955-03-31
Abstract: 844,601. Warping machines. CROWTHER Ltd., and COLEMAN, P. E. R. July 2, 1956 [March 31, 1955], No. 9376/55. Class 142(1). A feeler roller 19 is maintained in contact with the periphery of the package 16 to move in accordance with the diameter of the package and actuate means for lowering the beam to maintain the level of delivery of the threads substantially constant. The roller 19 is mounted upon arms 17 upon one of which is secured a cam plate 28 arranged to engage a pin 30 upon a lever 31 which operates a micro-switch 34. Operation of the switch 34 allows escape of fluid from hydraulic rams 40 which support the beamcarrying arms 10 to lower the arms and beam. The hydraulic rams may be replaced by a screw jack gear driven by a servomotor controlled by the switch 34. Specification 796,089 is referred to.
Patent GB-889968-A (GB)
Title: Improvements relating to fastening devices
Inventor: COOK BASIL GEORGE
IPC: E05B15/04
Filed: 1957-03-22
Abstract: 889,968. Catch fastenings. EVERED & CO. Ltd. March 17, 1958 [March 22, 1957], No. 9381/57. Class 44. A fastening device comprises a body 10 adapted to be secured -to a door or other hinged panel or to the surrounding structure and a bolt 14, spring loaded so as to protrude from the body, but limited in the extent of its protrusion by stop means 22, the bolt having a rotary element 20 at its protruding end for co-operation with a catch plate adapted to be secured to the panel or surrounding structure, the catch plate being shaped so as to provide in conjunction with the rotary element, non- prohibitive retention of the panel in a closed position with respect to the surrounding structure, the bolt forming part of an assembly which is insertable into the body of the device as a unit, the assembly including a screwthreaded guide member 15 on which the bolt is slidably but non-rotatably mounted, a coiled compression spring 16 acting between an abutment member 24 on the guide member and an abutment 25 on the bolt to urge the bolt in the direction of increasing protrusion to an extent limited by the stop means which are disposed on the guide member, the screw thread of the latter being engageable with a co-operative screw thread on the body to enable the guide member and bolt to be adjusted in position relatively to the body to vary the extent of protrusion of the bolt by rotating the protruding end of the bolt and hence also the guide member, non-prohibitive retaining means 28 acting between the body and assembly serving to determine stopping positions of adjustment spaced apart angularly about the axis of rotation of the bolt and guide member. The body 10 is of generally cylindrical form closed at its rear end 11 and having a fixing plate 12 at its forward end which is open. The bolt 14 has a rear portion 17 of hollow cylindrical form and the guide member 15, which is a screw threaded bolt, has its head which forms the stop means 22 received in the portion 17 with its stem passing through the end wall of the portion to screwthreadedly engage in the end 11 of the body. At its forward end the bolt has two limbs 19 the outer faces of which are part-spherical in shape and adapted to fit closely within the body 10 and the inner opposed face of which are planar. Between the limbs is the rotary member 20 which is freely rotatable about a pin 21 riveted to the limbs. To prevent free rotation of the bolt two balls or plungers constituting the retaining means 28 are provided, these being mounted in a transverse passage 26 in the bolt with a coiled compression spring 27 between them to urge them outwardly into engagement with a pair of grooves 25 extending endwise of the body. When the balls or plungers are engaged with the grooves the bolt can slide rearwardly into the body but is retained against rotation, but by applying sufficient torque to the bolt the balls or plungers can be forced out of the grooves and the bolt rotated to adjust its protrusion from the body.