baber/WOPTO huggingface dataset:
Patent GB-391242-A (GB)
Title: Improvements to neon signs and the like
IPC: H05B41/04
Filed: 1931-11-24
Abstract: 391,242. Supply systems for vacuum &c. discharge apparatus. FEILD, B. D., 24, Hickling Road; Ilford, Essex. Nov. 24, 1931, Nos. 32509/31 and 36/32. [Class 38 (iv).] The illumination of an electric discharge lamp L is controlled or varied by introducing in series therewith a condenser C and a choke coil K, thus enabling, if desired, several lamps to be connected in parallel with the employment of one transformer T only. The effect of the condenser or choke coil individually is to throw the voltage and amperage curves out of phase, and thus by adjusting them or by employing two or more condensers of different capacities and selectively switching in, the lamp may be brightened or dimmed. By employing both a condenser and choke the out-of-phase condition is rectified, and true power watts pass through the lamps, maintaining steady illumination. When lamps in parallel, or a single elongated lamp having several terminals along its length, are employed, the lamps or sections may be short-circuited across their terminals without affecting the luminosity of the remaining lamps. A magnetic switch may be employed for this purpose.' The lamps may form a uniform field acting as an illuminated background to an interchangeable stencilled or other character. Specifications 331,557 and 357,492 are referred to.
Patent GB-263620-A (GB)
Title: Improvements relating to direction indicating devices for use in connection with vehicles
IPC: B60Q1/34
Filed: 1925-12-24
Abstract: 263,620. Wharam, W. M., and Gee, W. Dec. 24, 1925. Road-traffic signals on vehicles. - A direction indicator for use on a vehicle comprises a hand or pointer A mounted on a shaft a rotatable in a casing B adapted to be secured to any suitable part of the vehicle and provided with a Bowden wire or other control mechanism a<6> operated by a handle a<10> under the control of the driver. The shaft a is formed with collars a<5>, a<6> fitting the casing B and serving as bearing surfaces. The Bowden wire is attached to a drum a<7> on the collar a<6> and to the shaft a is attached one end of a spring a<9> the other end of which is attached to the casing. An additional bearing surface for the shaft a is provided by the screwthreaded cap b closing the end of the casing B. The top of the casing is preferably dome-shaped and is protected by a cover b<2>.
Patent GB-1514070-A (GB)
Title: Time control signal generator
IPC: G06F1/14
Filed: 1976-08-05
Abstract: 1514070 Generating timed control signals INTERNATIONAL BUSINESS MACHINES CORP 5 Aug 1976 [28 Aug 1975] 32601/76 Heading G4A A control signal to initiate each of a plurality of different functions is generated by a compare circuit 12 when the number of timing signals accumulated at 10B for that function since the last time the respective control signal was generated is equal to the number of timing signals which should be accumulated between successive generators of the respective control signal, as stored at 10A. If the two numbers from 10A, 10B are not equal the number from 10B is incremented at 13 and rewritten in 10B. Each of the stores 10A, 10B has one location for each function, these locations in normal operation being sequentially addressed under control of logic 28. Numbers are written in to the constants store 10A via an input data register 15, with the appropriate addresses being supplied to a load address buffer 21.
Patent GB-173399-A (GB)
Title: Improvements in or relating to bins particularly applicable for use in the bleaching of paper stuff
IPC: B01F33/40
Filed: 1920-11-18
Abstract: 173,399. Salmon, W. H. Nov. 18, 1920. Tanks. -- In bins provided with perforated false bottoms for bleaching paper stuff &c., the falsebo t tom elements, such as perforated tiles, are supported uniformly on members that are not appreciably affected by chemical action. In the form shown in Fig. 4, the tiles 10 are supported on longitudinal members 1 of reinforced concrete secured to the floor 2 of the bin and on transverse members 9 positioned in notches 8 in the parts 1. In a modification, short transverse members extend between notches in adjacent members 1, the notches being separated by web portions. The members 1 may be formed of channel section and have recessed portions to engage recesses in the transverse members. The edges on which the tiles rest may be grooved. The floor of the bin may be inclined for drainage purposes; or it may be horizontal. The transverse members may be cast on the longitudinal members; or the transverse and longitudinal members may be detachable, endwise movement being prevented by their engagement with the side walls of the bin.
Patent GB-925467-A (GB)
Title: Production of pentaerythritol trichlorohydrin
Inventor: NEUBAUER GERALD
Filed: 1961-09-12
Abstract: A process for the production of pentaerythritol trichlorhydrin comprises dissolving pentaerythritol in a reaction product of pentaerythritol and hydrogen chloride, passing hydrogen chloride in at least the amount theoretically necessary through the resultant solution at a temperature between about 170 DEG  to 200 DEG C., at a pressure between atmospheric and about 5 atmos, and recovering the pentaerythritol trichlorhydrin thus produced. Specified pentaerythritol -HCl reaction products are the mono-, di- and trichlorhydrins and 5,5-bischlormethyldioxan-1,3 and mixtures thereof.  The effluent HCl may be recirculated after condensation of liquid entrained substances.  Batchwise and continuous operation is possible.  A series of reaction vessels may be used, the pentaerythritol, preferably dissolved in dichlorhydrin, being chlorinated up to about the dichlorhydrin stage in the first vessel at 130-175 DEG C., and converted to the trichlorhydrin at 170-200 DEG C. in subsequent vessel(s). Specification 764,664 is referred to.
Patent GB-736523-A (GB)
Title: Electric lowering arrangement for rotary deep drilling work
IPC: H02P7/08
Filed: 1952-12-24
Abstract: 736,523. Automatic tension control systems. SCHULZE, W., and SCHWEDLER, U. Dec. 24, 1952 [Dec. 28, 1951], No. 32713/52. Class 38 (4). [Also in Groups XXI and XXXVIII] In a system for automatically maintaining a constant pressure on the boring tool during the rotary boring of deep wells, the speed and rotational direction of a motor provided in addition to the main driving arrangements of the hoisting gear drums and serving to lower the drill pipes as boring proceeds and which is made continuously regulable in speed from standstill to maximum is controlled by means responsive to the tool pressure. The control may be obtained from the variations in the power input to the rotary table which revolves the drill, for example by measuring deviations in armature current where the table is driven by a direct-current shunt-wound motor, or it may be obtained from a dynamometer which measures variations in tension in the drill suspension tackle. The drawings show a system utilizing the latter method. Fig. 4 shows the electro-mechanical dynamometer from which is suspended the length of drill pipe. It consists of a sleeve 24 serving as an elongation measuring member to the upper end of which are rigidly connected two pairs of induction coils 27, 28 mounted on U-magnet frames 29, 30. An armature 31, rigidly con. nected to the other end of the sleeve, is mounted between the pole shoes so that any length variation of the sleeve gives a corresponding variation in inductance of the coils. The dynamometer may also be constructed to convert tension variations into resistance or capacitance variations. The coils, shown as 27a, 28a in Fig. 5, are arranged in an A.C. bridge circuit with another pair of coils 34, 35 between which is mounted a pivotable armature 36 by means of which the bridge voltage can be adjusted to zero to correspond to the desired boring pressure. Any out-of-balance current caused by variation in this pressure is amplified at 37 and drives a servomotor 38 which rotates a disc 45 (Fig. 6). This movement is transmitted by a rack 46 and wheel 47 to an arm 43 which selects a corresponding A.C. voltage from a transformer 42 supplying current to a selenium rectifier 44, the output from which passes, via half rings 51, 52, to the armature 40 of the lowering motor which has a separately excited shunt winding 41. In operation, an increasing boring pressure causes a reduction in the voltage applied to the armature until the motor speed reaches zero. If the pressure still increases the brushes 49, 50 connecting the half rings reverse the polarity of the applied voltage so that the motor eventually begins to lift the drill pipes from the well.
Patent GB-1277389-A (GB)
Title: Apparatus for processing printing plates for offset printing machines
IPC: G03F7/30
Filed: 1970-07-06
Abstract: 1277389 Photographic processing apparatus BIO BIELEFELDER OFFSETDRUCKPLATTEN UND ZUBEHOR B KRAUSE 6 July 1970 [5 Dec 1969] 32737/70 Addition to 1269281 Heading G2A Processing apparatus in which plates 3 are successively dipped into treatment containers 2 has an idling station in which the container is replaced by holding means so that a plate can be laterally withdrawn from a carrier frame 6, e.g. for inspection. In the region of the idling station, a part 11 of the carrier frame 6 is hinged and moveable by an hydraulic cylinder 12 to allow a plate carrier 4, 5, 8 to be lowered from a drive element 9 connected to an endless chain 7 to a hook shaped element 17. Element 17 is connected to a rail 13 which may be laterally drawn out on rollers 14. A limit switch 18 prevents movement of carrier frame 6 unless rail 13 is in its retracted position, and a further limit switch may be associated with part 11. A pawl 22 locks the rail 13 in its retracted position.
Patent GB-1337138-A (GB)
Title: Control network for a knitting machine
IPC: D04B35/18
Filed: 1971-07-13
Abstract: 1337138 Knitting machines STOP-MOTION DEVICES CORP 13 July 1971 [15 March 1971] 32838/71 Heading D1C In a knitting machine having at least one fault-detecting circuit a control network comprises a unidirectional power source and diode means between the power source and the circuit(s) shunted by a circuit element which when energised causes de-energisation of the machine drive. The detector may comprise a detector for broken yarn, or a described latch detector. Yarn and latch detectors may be arranged in two sets with a common power source. An individual fault-detecting circuit A, of which several may be arranged in parallel, comprises a switch 36-40 closed by a fault. A thyristor 66 is thus energised to light a lamp 48, by-passed by resistor 68. The control circuit includes diodes 75 in parallel with a relay 74, which when energised can stop the machine. The diodes provide a constant voltage drop, so that the current through the relay is constant despite lamp failure or several circuits being energised. In a modification (Figure 5 not shown) diodes (108, 110) are by-passed by a transistor (116) which when energised, deenergises a second transistor (96) and interrupts the current in a relay (100) in the motor circuit. In a modification (Figure 6 not shown) two sets of detector circuits are associated with the same relay (100). The latch detector comprises a coil spring 36 supporting an insulated probe 28. The spring has an axial insulated core 40. If the probe strikes a defective latch or an accumulation of fly, the spring is deflected to contact the core so that the lamp 48 is lit. The circuit is reset by depressing the lamp cover 50 against spring 56, so breaking contacts 54-58. The resetting switch may be omitted if the spring is of magnetizable material and can be held in contact with a permanent magnet core 40.
Patent GB-1176957-A (GB)
Title: Methods of Manufacturing Gloves and Gloves Produced by the Methods
Inventor: THOMPSON HERBERT GOTTS
IPC: A41D19/00
Filed: 1967-07-18
Abstract: 1,176,957. Coated gloves. H. G. THOMPSON. 12 July, 1968 [18 July, 1967], No. 32849/67. Heading B2K. A glove or other handcovering comprises a lining of fabric material e.g. of cotton, with a coating comprising a foundation layer of polyvinyl chloride paste or plastisol with a surfacing formed from premix granular powder, fused to form a bond between the foundation layer and the surfacing. The premix granular powder consists of polyvinyl chloride, plasticisers and colouring matter, mixed such that it remains a free-flowing powder which is not gelled. The glove may have a wrinkled non-slip surface character consisting of some of the premix granular powder coating fused on to the surface of the paste or plastisol coating or a rough surface character consisting of the premix granular powder coating and the paste or plastisol coating fused together. The glove may be produced by coating e.g. by dipping, the fabric lining with the paste or plastisol and while the coating is still in the liquid ungelled state, depositing e.g. by spraying or dipping, the premix powder thereon, and then subjecting the coated lining to heat treatment e.g. at between 170 and 210‹C, to effect gelling and fusion of both coatings. The paste may contain the polymer, plasticiser, heat stabilisers and colour dispersions. The paste or plastisol coating and the powder coating may be subjected to a temperature e.g. 170 to 190‹C, such that the powder coating fuses more slowly than the paste or plastisol coating with the result that the premix powder coating forms a wrinkled surface, or to a temperature e.g. 190 to 210‹C, such that the powder coating fuses concurrently with the paste or plastisol coating to form a rough surface.
Patent GB-1076112-A (GB)
Title: Improvements in and relating to phase-modulation pulse generators
IPC: H02M1/08
Filed: 1964-08-12
Abstract: 1,076,112. Semi-conductor pulse circuits. LE MATERIEL ELECTRIQUE S.W. Aug. 12, 1964 [Aug. 20, 1963], No. 32913/64. Heading H3T. In a phase-modulation pulse generator, particularly for generating control pulses for a semi-conductor controlled rectifier (SCB), a sine wave at 11, 12 is fed via transformer 10 to a limiting amplifier comprising transistors 2, 3 and transformer 15, thus providing a square wave which is used to control a Miller integrator 17. The triangular wave from the integrator 17 is superimposed on the square wave so as to provide a waveform (Fig. 3e) across transformer 18, the average value of which is adjustable by means of a D.C. control voltage at 26. The timing during each half-cycle at which transistors 19, 20 become conductive is thus dependent on the magnitude of the control voltage at 26. The resulting waveform is clipped by a bi-stable circuit comprising transistors 21 . . . 25 and fed to a saturable transformer 28 which provides a pulse of adjustable timing in each secondary winding 29. These pulses are fed via diodes (Fig. 2, not shown), to the gate electrodes of SCR's. The extent of the phase shift obtainable by variation of the control voltage at 26 is limited by pulses derived from the supply at 11, 12 by means of a saturable transformer 27 and phase shifter 23, C4.
Patent GB-643522-A (GB)
Title: An improved device for protecting three-phase motors against damages caused by failure of one phase or by heavily unbalanced loads
IPC: H02H3/34
Filed: 1947-12-15
Abstract: 643,522. Protective cut-out arrangements. BORNSTEIN, L. Dec. 15, 1947, No. 33032. Convention date, Dec. 24, 1946. [Class 38(v)] in an arrangement for the protection of a three-phase motor against the failure of one phase or heavily unbalanced conditions, an induction-motor type relay is used, the relay being arranged so that its normal rotating magnetic field acts in a direction such that the contacts of the relay are not operated, whilst the unidirectional field set up under fault conditions causes a movement of the rotor of the relay in the reverse direction to operate the contacts. The relay 7 has a stator 8 with a three-phase winding 10a-10c arranged in slots 9 and connected in series with the windings of the motor 20. The rotor 11 has a squirrel cage winding 14 arranged in slots 13 and is fixed on a shaft 12 rotatable in bearings 18. A contact actuating arm 16 is fixed to the shaft 12. Fig. 5 shows the use of the relay in a circuit having a circuit breaker 2 with a closing coil 5, the relay contacts 15a, 15b being connected in series with the coil. The relay windings are connected in such a manner that the rotating magnetic field produced by them under balanced conditions tends to turn the rotor in an anti-clockwise direction so that the contacts 15a, 15b are not opened, continuous rotation of the rotor being prevented by a stop (not shown). The rotor remains in the position shown in Fig. 3, in which the rotor slots 13 are staggered with respect to the stator slots 9, so that in the event of the failure of a phase the unidirectional magnetic field produced in the relay results in the alignment of the slots, a movement of the rotor in a clockwise direction occuring. Thus the arm 16 opens the contacts 15a, 15b to trip the circuitbreaker. In Fig. 6 (not shown) the relay controls the closing and tripping coils of a circuit-breaker and is provided with a changeover contact assembly. The relay contacts may be latched in the open position and require manual resetting (Fig. 7 not shown). The relay may have the phase windings on the rotor and the squirrel cage or a wound winding on the stator.
Patent GB-417163-A (GB)
Title: Improvements in or relating to propellors for aircraft and for like purposes
IPC: B64C11/04
Filed: 1933-11-25
Abstract: 417,163. Air-screws. FAIREY AVIATION CO., Ltd., Cranford Lane, Hayes, Middlesex, and FORSYTH, A. G., Venlaw, Burdon Lane, Cheam, Surrey. Nov. 25, 1933, No. 33051. [Class 114.] The roots of air-screw blades are formed with over-hanging parts which take into corresponding recesses in the hub formed to converge toward the axis of the blade and sleeves are provided which are drawn together for exerting a wedge action on the root. The blade roots f are formed with shoulders which are gripped by ring members k having similar inclined surfaces, these members being connected by bolts e and drawn together to wedge the blade root firmly in position against the hub a. The roots are also held between an integral flange b on the hub and a slidable flange c secured by a nut q. The blade roots are shaped collectively to fill up the annular space between the flanges. The rings k have cylindrical inner surfaces m engaging the outer rims of the flanges b, c.
Patent GB-1191687-A (GB)
Title: Sheepskin Combing Machine
Inventor: MACPHERSON ALASTAIR WILLIAM
IPC: D06C29/00
Filed: 1967-07-19
Abstract: 1,191,687. Combing sheepskins. A. W. MACPHERSON. 18 Oct., 1968 [19 July, 1967], No. 33063/67. Heading A4F. A machine for combing sheepskins comprises two rotatable rollers 3, 4 for feeding each sheepskin to a rotary combing device 5 adapted to be power driven, e.g. from an electric motor 8 via a belt drive 9, and being in driving connection with the roller 4. The combing device 5 is connected by a further belt drive 10 to a shaft 11 rotatably mounted on a lever 12 biased by a weight 20 so that the shaft 11 engages a handwheel 15 connected by reduction geering 16 to the roller 4. Each sheepskin is fed between the rollers 3, 4 by manually turning the handwheel 15 until the sheepskin passes beneath the foot 25 of an actuator 24 to close a switch 23 to drive the motor 8, and the trailing end of the sheepskin is similarly fed out of the machine after the switch 23 has opened. During manual operation of the handwheel 15 the shaft 11 is disengaged therefrom by operation of a foot lever 19.
Patent GB-794662-A (GB)
Title: Improvements in or relating to sterilizing milk
IPC: A23L3/10
Filed: 1954-11-15
Abstract: 794,662. Sterilizing milk. CROSS, S. Nov. 11, 1955 [Nov. 16, 1954], No. 33095/54. Class 49. [Also in Group XXX] Milk in bottles is sterilized by steam in. a closed tunnel and the bottles are transferred to a separate, preferably rotary, cooler. A removable shroud may cover the passage between the sterilizer and cooler. Trays of bottles are fed on to an inclined roller conveyer 14 within a double-walled tunnel 10 and slide towards the lower end until checked by a disengageable stop. For sterilization, the tunnel is sealed by doors 16 which are secured in vertical guides and attached to counter-balancing weights by a cord or chain 28 passing over pulleys 26. The cooler consists of a framework of longitudinal and circular tubes 42, 43, mounted for rotation on rollers 45, 46, within which is a telescopic rectangular structure 48 carrying a roller conveyei 53 and supported on rollers 49. In transferring trays from the sterilizer to the cooler, the conveyer 53 is pulled out and fastened in abutment with the adjacent end of the sterilizer. In a modification, a section of roller conveyei pivoted in counterbalance to a door 16 of the sterilizer bridges the sterilizer and cooler. Wheeled trays running on rails may replace the roller conveyers.
Patent GB-860149-A (GB)
Title: Improved gas collecting means for electrolytic aluminium furnaces
IPC: C25C3/22
Filed: 1957-10-24
Abstract: 860,149. Etectrolytic furnaces. ELEKTROKEMISK. A.S. Oct. 24, 1957 [Oct. 24 1956], No. 33262/57. Class 39 (3). An electrolytic aluminium furnace of the type having an anode 3 extending through a permanent sheath-like casing 6 and supplied with current through vertical contact rods 4 inserted into the anode and serving to support it has a gas-collecting ring 11 or 13 connected to a source of suction and secured to the casing 6 in a position surrounding the anode and spaced above the bath crust 8 so that it collects furnace gas diluted with excess air from the furnace room. In Fig. 1 the ring is a secondary ring 11 placed directly above a primary gascollecting ring 10 surrounding the anode at the surface of the bath to collect furnace gas in concentrated unburnt form; and the secondary ring 11 has a vertical or inclined outer wall furnished with adjustable ports 12 through which a variable amount of excess air with escaped furnace gas is drawn into the ring by a fan either constantly or when the crust 8 is broken and the furnace is being recharged at 9. In Fig. 2 the secondary gas-collecting ring comprises an open-bottomed fume hood 13 placed at or adjacent the upper edge of the anode casing 6 and provided with a suction pipe 14. Concentrated gas collected in the primary ring 10 is burnt in a burner to which the gaseous mixture collected by the hood 13 is fed as a source of oxygen for combustion. In the modification shown on the left of Fig. 2, the primary ring 10 is omitted, and concentrated gas collecting between the melt and the crust is led by pipes or holes in the crust near the anode to the hood 13. Tar fumes from this space may be burnt in a burner 15 supported at 16 on the lower part of the iron, casing 6. The secondary rings 11 and 13 may be constructed as platforms for furnace operators.