baber/WOPTO huggingface dataset:
Patent GB-1495431-A (GB)
Title: Method of toughening metallic material
Inventor: PENSA C
IPC: C21D8/00
Filed: 1974-11-18
Abstract: 1495431 Cracking at specified temperatures MITSUBISHI JUKOGYO KK 6 Jan 1975  498/75 Heading B3V Metallic material capable of solid state phase transformation with change in temperature is toughened and anti-corrosion properties improved by subjecting it to a series of temperature cycles in each of which the material is heated above a transformation temperature and is cooled below the transformation temperature so that the material exhibits dynamic superplasticity, and mechanically working the material during the cycles. Suitable materials are soft steel, 18-8 stainless steel, high tensile steel and Duralumin (R.T.M.). Preferably the material is subjected to shear stress of 0À1- 0À05 of the yield stress, e.g. 1, or 3 kg./mm.<SP>2</SP>, on the frame of a lathe so that there is no change in shape. High-frequency induction or direct resistance heating may be used followed by compressed-air cooling to produce the desired temperature cycles for a period as short as 30 seconds. Preferably three 20-second cycles are used, varying the temperature between 600‹ and 850‹ C. or between 600‹ and 950‹ C. for soft steel and 1050‹ C. and 1150‹ C. for stainless-steel. Specification 1,495,432 is referred to.
Patent GB-1167642-A (GB)
Title: Improvements in or relating to Sealing Devices
IPC: F16J15/34
Filed: 1967-01-04
Abstract: 1,167,642. Seals. A. PITNER and NADELLA S.A. 4 Jan., 1967 [5 Jan., 1966], No. 527/67. Heading F2B. A sealing ring 2 of V cross-section for a universal joint is compressed between a shoulder on the shaft 11 and the end of a bearing 3 in which the shaft rotates, a rigid member 4 made of metal or plastics material being provided to protect at least one of the lips of the ring and close the recess between the lips. The protecting member 4 may have a cylindrical or slightly conical wall 6. In a modification, Fig. 3 (not shown), the protecting member is cylindrical and bears on the outer periphery of the lower lip (7). In another modification, Fig. 4 (not shown), the radial flange of the protecting member is recessed into the end face of the lower lip (7). The seal may be used to centre the parts of a universal joint during assembly, Fig. 5 (not shown).
Patent GB-546888-A (GB)
Title: Improvements in and relating to air drying apparatus
Filed: 1942-01-14
Abstract: 546,888. Drying air. BRITISH THOMSONHOUSTON CO., Ltd. Jan. 14, 1942, No. 553. Convention date, Jan. 16, 1941. [Class 34 (i)] Apparatus for drying the compressed air supply for extinguishing the electric arc formed upon separation of electric switch contacts and for other purposes comprises a chamber 19 containing hygroscopic material and attached to or inserted in a storage vessel 16 in the system, the chamber being provided with an electric heating coil 39 for reactivating the material and with a valve 68 for the discharge of moisture outside the system during the heating operation. The supply of current to the heating coil and to a solenoid 71 operating the valve 68 may be controlled by a switch 70 operated by a moisture sensitive element 69 in the storage vessel or in the path of the air supply.
Patent GB-1242043-A (GB)
Title: Process for the purification of iron oxides
Inventor: MAYOR YOLAND PIERRE PAUL
IPC: C22B1/02
Filed: 1969-01-03
Abstract: 1,242,043. Purification of Iron oxides. Y-P.P. MAYOR, and P. F. TORD. 3 Jan., 1969 [3 Jan.,1968], No.573/69. Addition to 1,203,967. Heading C1A. Iron oxides obtained by the roasting of ores, in particular the roasting of sulphide ores in air are purified by contacting the ashes resulting from roasting, which ashes contain non-ferrous metal oxides and SiO 2  as impurities, in a reaction zone with a hot carrier gas and at least one hydrohalic gas at a temperature sufficient to vaporize the halides formed from the non- ferrous metal oxides and lead to their entrainment by the carrier gas wherein water vapour is present in the reaction zone to enhance the formation of non-ferrous metal halides while inhibiting the formation of iron halides and wherein as a hydrohalic gas precursor an aqueous solution of an iron halide salt is introduced into the reaction zone, thus providing the hydrohalic gas in situ and the necessary water vapour for the reaction. The iron halide salt is used in an amount between 105-150% of the stoichiometric amount required to convert the non-ferrous metals into their halides. These halides are condensed from the carrier gas by cooling and cemented with metallic iron, and the iron halide solution thus obtained is recycled.
Patent GB-620207-A (GB)
Title: Improvements in or relating to alternating current electric motor equipments
IPC: H02P3/22
Filed: 1947-01-08
Abstract: 620,207. Control of A.C. motors. GENERAL ELECTRIC CO., Ltd., and COX, W. R. Jan. 8, 1947, No. 656. [Class 38(iii)] In order to prevent the overheating of a winding motor during dynamic braking at low speeds, means is provided so that the stator excitation (D.C. or low frequency A.C.) is automatically limited when the motor is running at low speeds and further means, dependent upon the motor speed, is provided to render the first means inoperative when the motor speed exceeds a predetermined value so that, in a preferred arrangement, the first means is incapable of again limiting the excitation should the motor speed fall below the predetermined value during the particular period of braking. As shown, the stator winding of a motor 1 is supplied during dynamic braking with D.C. from a generator 2 the field of which is limited initially by a resistor 14, At say 25 per cent full speed the tachometer generator 16 operates the relay 18 which in turn operates relay 21 to short-circuit the resistor 14, the braking torque then being that chosen by the setting of the control lever of the rheostat 15. The relay 18 becomes inoperative when the speed of the motor falls below say 15 per cent full speed, but the relay 21 remains energized through hold-in contacts 24 until a contact 22 is opened by the return of the control lever to the neutral position. The contacts 22 may alternatively form auxiliary contacts on the contactor 9. In another embodiment an additional relay provides an arrangement wherein maximum braking torque is applied on the failure of the relay 21. Specification 620,206 is referred to.
Patent GB-1457553-A (GB)
Title: Programmable controller and method of controlling
IPC: G06F9/06
Filed: 1974-01-07
Abstract: 1457553 Automatic control GENERAL ELECTRIC CO 7 Jan 1974 [5 Jan 1973] 00682/74 Heading G3N A data processor is programmed to simulate a relay circuit controlling a system such as an industrial process. The circuit simulated is a ladder circuit, each rung comprising a number of relay contacts e.g. LAT, LOT, LAF, LOF, relays SST, and master contacts LDL, Fig. 2. The processor operates on each rung in turn. It examines the state of successive contacts in the rung, and after each examination step it stores the state, so far, of the rung (e.g. a 1-bit to indicate an unbroken rung portion) so that the final state indicates whether or not the relay SST is energized. The final states are stored and used to control the system. Should master contacts LDL be open all the associated rungs are open so that the relays SST can operate simultaneously on the system controlled, e.g. to shut the system down in the event of a serious fault. At the start of the first examination step, e.g. of the top rung shown in Fig. 2, sequence logic (46) in the processor causes an address to be read from a procedure register (42), Fig. 1, (not shown) to read from a store (16) a command word relating to the master relay contacts LDL. The word is passed to an instruction register (54). It comprises an op code and an address. The address specifies a location in the store that contains a bit indicating the status of contacts LDL. The status bit state for contacts LDL is determined by the system controlled by the processor. For other contacts it is determined by the system or by a relay SST of the simulated circuit. In response to the command word the status bit for contacts LDL is stored on a first bi-stable (F L ). The procedure address register (42) having been incremented by one, in the next examination step the command word for contacts LAT is read and used to access the status bit in the store. The status bit is passed to the logic unit (76) together with the status bit from the first bi-stable (F L ) and a cumulative status bit from a second bi-stable (F R ). Initially this bit is zero. The logic unit performs an operation dependent upon signals from a control logic (30) responsive to the op. code defining the relationship of the contacts LAT to the prior contacts - in this case normally open and in series. The result of the operation is stored as a cumulative status bit in the second bi-stable (F R ). Further examination steps similar to the second, take place, the final value of the cumulative status bit for the rung indicating whether or not the simulated relay SST is set. The status bit is stored at the address specified by the SST command word in the instruction register for use by the controlled system and/or in subsequent examination steps, and the procedure is then repeated for the next rung. When the final rung has been examined the procedure register (42) is reset to the first address of the program, ready for examination of the first rung again.
Patent GB-697209-A (GB)
Title: Improvements in or relating to latch mechanism for doors and the like
IPC: E05B65/19
Filed: 1952-01-09
Abstract: 697,209. Automatic catches. HOUDAILLEHERSHEY CORPORATION. Jan. 9, 1952 [May 10, 1951], No. 683/52. Class 44 A catch for the door of a vehicle luggage compartment comprises a latching lever 16, Figs. 1, 4, mounted for pivotal and sliding movement on a plate 13, a dogging lever 29 pivoted to the plate 13 and engageable with the lever 16 to hold it in latched position; a pivoted locking lever 39 movable to engage the dogging lever and hold the latter in engagement with the latching lever, and push-button release mechanism including a push button 50 and a slidable member 56 engaging the locking lever 39. The downwardly depending nose 12 of the plate 13 on which the latching lever 16 is mounted projects in the closed position through an aperture in a striking plate 14. The plate 13 is mounted in a housing 17 secured to the door, which is hinged to swing about a horizontal axis. The lever 16 is pivotally mounted on a pin 23 which can slide in a slot 24 in the plate 13, and a torsion spring 25 around the pin biases the lever in counter clockwise direction and urges pin 23 towards the lower end of the slot, keeping lever 16 in engagement with one edge of the aperture in the striking plate. The dogging lever 29 is pivoted on the opposite side of plate 13 from the latching lever, and carries a pin 33 which passes through a slot in the plate and engages the bifurcated upper end of lever 16. It has a locking arm 37 extending upwardly beyond the flange 21. The locking lever 39, as shown in plan view in Fig. 3, is pivoted to flange 21 at 40 and biased by a spring 44, and has a lug 41 engageable by the locking arm 37 of the dogging lever. The dogging lever 29 has an arm 46, extending upwardly with a part 47 extending over an outwardly turned arm 49 of lever 39. The outside operating means for lever 39 comprises a pushbutton 50, Fig. 1, sliding in a lock casing 51, and being lockable, and operating a sleeve 52 which has a depending arm 56 adapted to make contact with and move the lever 39.
Patent GB-1136401-A (GB)
Title: Lined carton
Inventor: SALWAY BRIAN
IPC: B65D5/60
Filed: 1965-01-07
Abstract: 1,136,401. Lined cartons. E. S. & A. ROBINSON (HOLDINGS) Ltd. 6 April, 1966 [7 Jan., 1965], No. 727/65. Heading B8P. A carton of cardboard or the like lined with a preformed pouch 11, Fig. 4, of flexible material consists of opposed front and back panels 2, and opposed side panels 4. The side panels 4 each have a longitudinal median line of weakening a so that in the collapsed condition part of each side panel is in a plane with the front panel and part is in a plane with the back panel. The front panel has hinged to it a top forming panel 5 with end flaps 7 adapted to be folded on and adhered to the side panels 4 during the formation of the carton. As shown the front panel has hinged to it a bottom-forming panel 6, Fig. 2, with end flaps 8 adapted to be folded on and adhered to the side panels 4. The back has hinged to it further top and bottom forming panels 9, 10. The carton is made from a single blank, Fig. 2, and has glued to it the pouch 11 over the area shown in broken hatched lines and (when the blank has been folded into a flattened tube) hatched lines, the flap 4A being adhered to the opposite side panel. When the lines of weakening are thereafter pressed the carton assumes the form shown in Fig. 4, the bottom forming panel 6 being brought into position by the pouch 11 which forms triangles 15 on the flaps 8. The flaps 8 are folded up and adhered to the side panels 4, and the bottom forming panel 10 is folded down and adhered to panel 6. To close the carton the flaps 7 are pulled into the plane of the top forming panel 5 and the panel 5 and flaps 7 are together bent up along a line of weakness b to form a support for sealing the top edges of the pouch 11. When the pouch is sealed the panel 5 and flaps 7 are bent down along the line of weakness b returning them to their former plane position. The carton top is then finished in a similar manner to the bottom. The pouch 11 may be metal foil or film with or without a fluid resistant coating, and may be a single layer or laminated.
Patent GB-930867-A (GB)
Title: Improvements relating to stacking boxes
Inventor: ROWE-HAM KENNETH HENRY
IPC: B65D21/02
Filed: 1961-01-07
Abstract: 930,867. Stacking boxes. BRADLEY & CO. Ltd. Jan. 5, 1962 [Jan. 7, 1961], No. 741/61. Class 18. A metal stacking box comprises an open topped rectangular box having a forwardly inclined front wall apertured at the top and having at its upper part an outwardly directed flange a<SP>2</SP> terminating in an upwardly directed flange a3 constituting a socket for a superposed box. Additional strength is provided immediately beneath the socket at spaced points by outwardly pressed cavities a<SP>6</SP> and also by outwardly pressed cavities a<SP>7</SP> in the box walls.
Patent GB-598954-A (GB)
Title: Improvements in and relating to mountings for piezo-electric crystals
IPC: H03H9/09
Filed: 1945-01-09
Abstract: 598,954. Piezo-electric crystal mountings. GENERAL ELECTRIC CO., Ltd., HANSON, J., and WILSON, E. Jan. 9, 1945, No. 789. [Class 40 (v)] A crystal mounting comprises a base 19 on which rests a steel electrode 11 formed with a raised rim portion on which rests a circular crystal plate 10. Spaced from the crystal by a ring 17 is a nickel-silver diaphragm 14 constituting the upper electrode, on which rests a mushroom-shaped bolt 21 adjustably screwed into a plunger 22 having a convex head 25. Adjustment of the diaphragm is effected by the transverse movement of a bolt 27 screwthreaded in a lug 29, and having a conical part 26 for engaging the head 25 of plunger 22. Movement towards the crystal is limited by the engagement of the underside of the head 25 with the mounting bridge 20. In a modification, Fig. 2, (not shown), the ring 17 is dispensed with, and the electrode diaphragm 14 is inverted so that its rim 16 rests directly on the crystal.
Patent GB-788533-A (GB)
Title: Improvements in or relating to refrigerant-evaporators for ice making machines
IPC: F25C1/14
Filed: 1955-08-03
Abstract: 788,533. Ice-making; refrigerating. BRANCHFLOWER, L. E. Aug. 3, 1955, No. 825/56. Divided out of 788,532. Drawings to Specification. Class 29 The description is identical to that of Specification 788,532, but the claims relate to the evaporator construction per se.
Patent GB-553644-A (GB)
Title: Improvements in or relating to emulsifying plant
IPC: B01F3/08
Filed: 1942-01-20
Abstract: 553,644. Emulsifiers. ALFA-LAVAL CO., Ltd., and HOLLISTER, A. H. Jan. 20, 1942, No. 828. [Class 1 (i)] An emulsifying plant comprises a tank 1, pump 3, and emulsifying valve 7 arranged in a circuit through which the liquid is repeatedly circulated until completely emulsified, and a two-way cock 8 is provided whereby the completed emulsion can be diverted by way of pipe 9 to a storage tank. The emulsifying valve, which is independently claimed, may consist of a pack of metallic laminations 20, Fig. 3, through the interstices of which the liquid is forced. The laminations are annular and the inlet pipe 19 communicates with their central space, and they are pressed together by an adjustable screw 23.
Patent GB-449884-A (GB)
Title: Improvements in heat-exchange elements for heating or cooling fluids
IPC: F28F1/12
Filed: 1935-01-10
Abstract: 449,884. Tubes for heat-exchangers. STILL, W. J., 19, Denbigh Road, Ealing, London. Jan. 10, 1935, Nos. 831 and 9016. [Class 64 (iii)] [See also Group XXII] Heat-interchanger elements comprise spirally wound flattened coils of wire w held at both narrow portions of each coil between flattened tubes t conveying one fluid, another fluid passing between the coils and tubes. The form of tube shown has parallel grooves g<1> ... g<4> dividing it into tubes t<1> ... t<5> ; the narrow portions of the wire coils, which form the side appear as a rectilineal zigzag wire, extend into and are preferably soldered to the grooves, and the wire constituting the longer portions of the coils is flattened to form vanes w<1> at right angles to the planes of the tubes, offering minimum resistance to the fluid flow. The flat portions in the wire may be formed by passing it between axially grooved rollers on its way to a coilforming blade at a rate which presents the round and still soft portions to the blade edges so that the flattened and hardened portions form the sides of the loops. The blade is tapered so as to provide by a screwthread adjustment the correct perimeter at the winding position, and has a spring drive to compensate for the cyclical variations of winding speed on the blade. The tubes may be made of tinned brass or copper and the coils of tinned copper wire so that when clamped together and heated the wires will become soldered to the tubes ; or the tubes may be coated with solder the wire not being tinned, or a length of solder may be inserted alongside each coil. The components may be assembled on an inclined table with the tube ends received in grooves in side ribs, and a pile of coils alternating with distance pieces stacked against each tube. The whole is clamped to a frame, the distance pieces are removed and the parts soldered. Specifications 271,122, [Class 64 (iii)], and 282,244, [Class 83 (iv)], are referred to.
Patent GB-1305172-A (GB)
IPC: A61M13/00
Filed: 1971-01-07
Abstract: 1305172 Inhalers AMERICAN CYANAMID CO 7 Jan 1971 [16 Feb 1970] 898/71 Heading A5T [Also in Division B2] In an inhaler in which a dose of powder is flushed out of a medicament chamber by gas from an aerosol propellant cartridge, the gas enters the chamber perpendicularly to the entrance on conduct of the mouth or nose piece and the chamber contains an agitator to break up clumps of powder. As shown, a dose of powder is shaken into chamber (3), whose volume can be varied by adjusting the position of plug 5. On releasing the gas from the cartridge into duct 9, the turbulence set up agitates ball 6 to -break up clumps of powder and causes the powder to discharge, through screen 4, into the mouthpiece (2). In another form, a dose contained in a half capsule (20, Fig. 7, not shown) is placed in an inhaler having a nosepiece (15) and a tube (19) for connection to the cartridge. The capsule acts as the agitator.
Patent GB-309529-A (GB)
Title: Rontgen diaphragm
IPC: G21K1/02
Filed: 1927-10-11
Abstract: 309,529. Mayer, K. Oct. 11, 1927. Divided on 286,283, under which a Specification was laid open to inspection under Sect. 91 of the Acts, March 4, 1928. R÷ntgen-ray apparatus.-A diaphragm for intercepting secondary radiation from a body to be radiographed comprises a thin' screen of leadrubber fabric or other impermeable material having apertures 4, Fig. 2, the intervening opaque strips 8 being large in comparison with the thickness of the screen. In the band shown, the width of the apertures 4 is the same as that of the intervening strips 8. In an alternative construction, two superposed bands slotted across their width and arranged at right angles may be used. The screen b, Fig. 1, may be in the form of an endless band wound round rollers 1, 2, and kept in movement between the body and the plate or film 7.
Patent GB-1446303-A (GB)
Title: Conveyor belt
IPC: B65G15/34
Filed: 1975-01-09
Abstract: 1446303 Conveyor belt core CLOUTH GUMMIWERKE AG 9 Jan 1975 [11 Jan 1974] 943/75 Heading B2E [Also in Division B5] A conveyor belt has a fabric core which comprises two layers of polyester fabric material joined by warp stitching and impregnated with a plastomer. The core may be made by drawing the two layers of fabric through liquid polyvinyl chloride and optionally coating it with a mixture of an elastomer and a plastomer.
Patent GB-576081-A (GB)
Title: Securing adaptors or other rigid members to the ends of flexible hoses
IPC: F16L33/24
Filed: 1945-01-12
Abstract: 576,081. Hose joints. SWAIN, F. E., and DARBY, D. Jan. 12, 1945, No. 985. [Class 99 (i)] A hose end fitting comprises a sleeve 12 secured to the hose 14 such as by screwing and having an internal flange 15, and. a ferrule 21 screwed into the hose, a ring 23 engaging in a groove 22 in the ferrule and against the flange 15 to prevent withdrawal of the ferrule. The ring may have an internal screw-thread through which the ferrule is screwed, or it may comprise a split ring having an internal ridge so as to allow the ring to be threaded oven the ferrule Specification 573,021, [Group XI], is referred to.
Patent HK-77896-A (HK)
Title: Circuit for magnetic or magneto-optical recording of data on a recording medium
Inventor: ZUCKER FRIEDHELM
IPC: G11B11/105
Filed: 1996-05-02
Abstract: An electromagnet is provided in magneto-optical recording and playback devices in order to be able to reverse the magnetisation of the magneto-optical layer of the magneto-optical disc as a function of the bits to be stored. 
<??>To achieve a fast and reliable magnetisation reversal, a coil (S) is constructed from two series-connected windings (W1, W2) of opposite winding direction. The common junction point of the two windings (W1, W2) is connected via a series circuit of an inductance (L) and a current source (Q) to a supply voltage (U). The free terminal (B1) of one winding (W1) is connected to reference potential via a first diode (D1) and a parallel circuit of a capacitor (C) and a Zener diode (Z) connected in series thereto. The free terminal (B2) of the other winding (W2) is connected via a second diode (D2) to the common junction point of the first diode (D1) and the parallel circuit. The free terminal (B1) of one winding (W1) is connected to reference potential via a first controllable switch (S1) and the free terminal (B2) of the other winding (W2) is connected to reference potential via a second controllable switch (S2). For recording data, the controllable switches (S1, S2) are opened and closed in phase opposition by a drive circuit (AS) as a function of the bits to be stored. 
<??>Magnetic and magneto-optical recording devices. 
<IMAGE>