baber/WOPTO huggingface dataset:
Patent GB-210930-A (GB)
Title: Improvements in or relating to the manoeuvring or steering of ships and other vessels
IPC: B63H11/04
Filed: 1922-12-14
Abstract: 210,930. Gill, J. H. W. Dec. 14, 1922. Propelling, steering, and manoeuvring by water jets.-Water jet propulsion apparatus for ships in which a rotatable nozzle with curved outlet passages is disposed in the pump discharge passage is provided with a number of vanes in the outlet passage. The pump may be placed over the intake and' coupled by a curved pipe to the discharge nozzle. Two wells A, B are mounted in the bottom of a ship and contain the pump C and rotatable nozzle D respectively. A pipe E connects the two wells and has stuffing- boxes F, G, through which pass the pump and nozzle spindles H, J. The manoeuvring nozzle D has an upper flange N' which contacts with adjustable thrust rollers P, whilst the spindle J takes the weight through a collar R and ball bearings R'. Inside the nozzle, are disposed a number of transverse vanes T which serve to direct water without shock into the required direction. Flanges U fit closely in the well B and form a labyrinth packing therewith. For steering the nozzle is rotated by a tiller or crank on the spindle J. Specifications 187,309 and 210,841 are referred to.
Patent GB-320554-A (GB)
Title: Improved heating apparatus for water supply systems
IPC: F24H1/10
Filed: 1928-11-21
Abstract: 320,554. Saxon, J. Nov. 21, 1928. No Patent granted (Sealing fee not paid). Heating by electricity.- A vessel 1 of small capacity, containing a heating element 6, is fitted with a tap 5, and is arranged in a normal waterheating circuit between boiler and reservoir for additional or alternative heating of the water. Reference has been directed by the Comptroller to Specification 28932/13.
Patent GB-1361853-A (GB)
Title: Recording device
IPC: G11B5/62
Filed: 1971-07-21
Abstract: 1361853 Magnetic storage devices PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 21 July 1971 [24 July 1970 15 May 1971] 34167/71 Heading H3B In a moving magnetic domain device hollow domains are used. By comparison with the usual single wall domains the hollow domains, one of which is shown in Fig. 1, show a much larger change in size for a given bias field variation, and also show a maximum change in size which is much greater. The range of bias fields over which the hollow domains are stable is much smaller than for single wall domains however; this may be overcome by providing lattice defects in the domain material, i.e. by causing the magnetic material to have a non-zero coercivity, and for lutecium orthoferrite with a coercivity of 50e the upper and lower limits on the bias field are respectively higher and lower for hollow domains than for single wall ones. The range of bias fields over which the hollow domain is stable may also be increased by forming a single wall domain within the hollow domain. It is found that when either of these methods of increasing the bias range is used with a cyclic bias field a non-reversible change occurs in the domain size, This is illustrated in Figs. 3a and 3b, which show respectively the bias field variations and the variations in the domain outer and inner radii R1 and R2 relative to the magnetic sheet thickness d. This is said to be usable to store extra information. The domains may be used in any of the known moving domain storage arrangements. Domain formation.-In one method of forming a hollow domain, Fig. 6, a linear domain has one end pinned by the edge of the sheet 3 in which it lies, and the other end is led round by a current carrying loop L to form a closed ring. The hollow domain can then be moved away from the sheet edge, Fig. 7 (not shown). In another method, Fig. 8, a central region of a domain 5 has its magnetization reversed by a current loop to form a hollow domain. In Fig. 9 (not shown), a method is illustrated in which two current loops having oppositely directed currents form a hollow domain from a uniformly magnetized sheet. The addition of a third current loop within the inner of these two loops will create a single wall domain within a hollow domain, Figs. 10, 11 (not shown).
Patent GB-1191865-A (GB)
Title: Granulating Machine
Inventor: HEWITT WILLIAM LEWIS
IPC: B02C23/16
Filed: 1967-07-26
Abstract: 1,191,865. Comminuting apparatus. HOMA ENG. Ltd. 28 Oct., 1968 [26 July, 1967], No 34200/67. Heading B2A. Apparatus for reducing e.g. pieces of plastics materials comprises between a feed hopper and a lower casing with a wheeled delivery trolley 27, Fig. 1, a chamber containing a horizontally-mounted bladed rotor 5 Fig. 2 which cooperates with two stationary blades 7. Comminuted material passes through a replaceable sieve 24 and larger material is thrown back into the path of the rotary blades. The rotor comprises a block 9 having trunnions 10 and four blades 6, each with a double bevel edge 6a. Each blade has adjustment slots 12. Each side of the rotor has a support piece 14 which with four nuts and bolts 15 supports the rear of its associated blade. The fixed blades 7 have adjustment slots 16; adjustment bolts 20 and rear supports 19 carried by support blocks 18. The upper casing 3 including the hopper 4 may be swung clear as at 3', 4' to give access to the blades for adjustment.
Patent GB-1240267-A (GB)
Title: Electric power control circuit
Inventor: CORBYN DAVID BENJAMIN
IPC: G05F1/46
Filed: 1967-07-26
Abstract: 1,240,267. Automatic power control systems. ENGLISH ELECTRIC CO. Ltd. July 25, 1968 [July 26, 1967], No.34263/67. Heading G3R. The power consumed by a load is maintained constant at a desired value by a control system including a Hall device which monitors the current and voltage of an A. C. source supplying the load, the action of the system being modified by a signal proportional to the rate of change of load current or power input. As shown, the instantaneous power delivered by a three phase supply RYB to a load is monitored by two Hall multipliers H1, H2 the outputs from which are applied over respective resistors R1, R2 to an operational amplifier A which also receives a reference signal from a potentiometer PT1 associated with Zener diodes ZD1, ZD2. The operation, e.g. summation, integration etc., performed by the amplifier A is determined by its feedback impedance Z and its output, which is proportional to the actual power consumed by the load and the desired value set by PT1, is smoothed by filters R4, C1 and R5, C2 and is applied to a control element for governing the power consumption of the load. A voltage for stabilizing instantaneous input excursions is also applied to amplifier A at terminal TM1, this voltage being proportional to the rate of change of power or current. For use with a D.C. load, e.g. an electro-chemical process, the output from the amplifier may be used for transductor control of the D.C. quantity, or it may be used for varying the firing angle of devices such as mercury arc valves or thyristors in a controlled rectifier or inverter.
Patent GB-1516854-A (GB)
Title: Dosing a flowing fluid
IPC: G05D11/00
Filed: 1975-08-19
Abstract: 1516854 Mixing fluids in flow E P SCRAGG 19 Aug 1975 [19 Aug 1974] 34427/75 Heading B1C [Also in Division F1] In an apparatus for closing a flowing fluid with a liquid additive (e.g. a compressed air flow with a lubricant) the latter is contained in a flexible tube one end of which is rotated in relation to the other by the action of the main flow in and or to expel the additive. In Fig. 1 the main flow enters at 14, flows round a rotatable sleeve 46 and through apertures 42 in a fixed wall 38 and leaves at 16. The additive is contained in a flexible tube 22 which is engaged at one end with the wall 38 while the other end passes through a slot in the end of the sleeve 46 and is retained by pins 56; a torque is exerted on the sleeve by the action of the main flow in vanes 50 and the additive is expelled through a metering passage 32. In another embodiment, Fig. 5, the nozzle end of the flexible tube is engaged in a rotor 88 having vanes 92; the main flow enters at 68, exerts a torque on the vanes 92, and passes through passages 108 in the rotor to mix with the additive in the outlet 70. Dirt is trapped in the lower part 74 of the container. A detent 110 prevents the flexible tube unwinding when the fluid flow ceases. In a modification, Figs. 9 and 10 (not shown) the main flow is parallel to the rotor axis and acts on peripheral vanes (162). The flexible tube may take the form of a replaceable container.
Patent GB-922922-A (GB)
Title: Moulding thermoplastic material
Inventor: HULST ROBERT VAN DER
IPC: B29C51/18
Filed: 1958-10-28
Abstract: 922,922. Moulding hollow articles. UNILEVER Ltd. Oct. 23, 1959 [Oct. 28, 1958], No. 34444/58. Class 87(2). Hollow articles 1 are formed from a sheet 2 of e.g. polyvinyl chloride by drawing it from a reel 3 by feed rollers 5, 6, and intermittently operated gripping jaws 8, 9 past infra-red heaters 23 to a position between a female vacuum mould 28 and a plunger 25. The heating and at least the first part of the drawing take place whilst the sheet is in a vertical position, thus preventing the sheet from sagging. The mould is moved by a pneumatic cylinder 30 against a ring 31 to clamp the sheet. The feed rollers 5, 6 are controlled by a switch 32 which is contacted by the loop 33. The finished containers are separated by a knife 34.
Patent GB-1016312-A (GB)
Title: Improvements in or relating to power measuring apparatus
Inventor: FLEMING BERNARD
IPC: G01R21/00
Filed: 1963-08-30
Abstract: 1,016,312. Power measurement. FLANN MICROWAVE INSTRUMENTS Ltd. AND B. FLEMING. Aug. 27,1964 [Aug. 30, 1963], No. 34455/63. Heading G1U. An apparatus for measuring power transmitted along a transmission line comprises a resistive element forming a matched resistive load for dissipating the power, the element being thermally connected at one or at spaced points to a heat sink so that the temperature of the element when power is being dissipated is non-uniform, and a temperature sensor to sense the temperature of a selected part of the said element. The arrangement enables considerable power to be dissipated in the resistive load, while the temperature sensor can be positioned so that it is not overloaded. In applying the invention to the measurement of power transmitted along a coaxial line, the apparatus may take the form of a connector plug for connection to a socket on the end of the line. The plug contains an inner conductor 16 insulated from an outer conductor 18. The outer conductor is in contact with an end plate 20 carrying a conductive sleeve 19, shaped with an internal step for matchin  purposes. Also carried by the plate 20 is a hollow dielectric cylinder 21 having a thin film 22 of resistive material on its outer surface, the resistive material making contact at one end with the conductor 16 and at the other with the plate 20 so as to provide a resistive termination. Any power transmitted to the plug is dissipated in this resistive load, heat sinks being provided by both the sleeve 19 and the inner conductor 16. A thermistor 15 is mounted in an element 23 which is slidable inside the cylinder 21. Its position can be adjusted by means of the screw 29. One side of the thermistor is connected to the outer conductor 18 (earth) while the other is arranged to be connectible into a resistance measuring bridge. Calibration of the apparatus is achieved by applying D.C. power from a known power source and adjusting the position of the thermistor so that the output meter of the measuring bridge, which is suitably calibrated, indicates the power directly. The apparatus enables small thermistors capable of dissipating say 10 milliwatts to be used for measuring powers of up to 1, 000 milliwatts. An arrangement for measuring power transmitted along a waveguide may consist of a strip of resistive material mounted across the waveguide so that part of the power is dissipated in this strip, the walls of the guide acting as a heat sink. The temperature at a point on the strip is sensed by a thermistor mounted on an insulating rod. Other heat sensitive devices, such as thermocouples, may be used instead of thermistors.
Patent GB-639344-A (GB)
Title: A rotary machine usable as an engine, a compressor, or a pump
IPC: F01C3/02
Filed: 1947-12-30
Abstract: 639,344. Rotary engines or pumps. JOOSTEN, J. Dec. 30,1947, No. 34597. Convention date, May 16, 1946. [Class 110(ii)] A rotary engine or pump comprises a rotor R provided with disc vanes 26, rotating on spindles 28, the vanes extending into a working chamber formed between curved surfaces 23, on the rotor, and 8 on the stators. Slots 38 in the vanes co-act with helical abutments 11 extending inwards from the stator and dividing up the annular working chamber into sections. The part S may act as a rotor, and R as a stator. The vanes, Fig. 1, are driven from the shaft 12 through spur and bevel gearing. For an engine, working fluid is admitted through ports 24 and exhausted through ports 25. The fluid may be fuel gas or steam. The rotor may be built up of four sections, each in the form of a right-angled triangle with a rim 18 and spokes 19 which support the vane spindles. The numbers of vanes 26 and abutments 11 may be four and five respectively, clearances being provided by the slots 38. The ends of the abutments may be spaced apart around the working chamber, or may overlap. Labyrinth seals may be provided between stator and rotor.
Patent GB-511276-A (GB)
Title: Improvements in and relating to change-over switch mechanism for electric circuits
IPC: H05B39/10
Filed: 1938-01-15
Abstract: 511,276. Emergency lighting systems. BEAUMONT, J. M. Jan. 15, 1938, No. 34664/36. [Class 38 (iv)] In the circuit of Fig. 2 the parts are shown in position with current supplied to lamp A, which on failure is replaced by lamp B. The current through lamp A excites a solenoid S to maintain against spring pressure an armature carrying an arm F completing the lamp circuit through the contact G. On failure of lamp A the solenoid no longer holds the armature F, which moves under the spring pressure to cause the arm F to complete the circuit of the lamp B through the contact G<1>. In the circuit of Fig. 3 a weighted lever L pivoted at L<1> is held down by the plunger of solenoid S to keep contact F, carried on the lever L, against contact G and complete the circuit of lamp A. On failure of lamp A the solenoid is no longer excited and the lever L under the action of its weight carries contact F up to complete the circuit of lamp B through contact G<1>. Reference has been directed by the Comptroller to Specification 221,892, [Class 38 (iv)].
Patent GB-1468092-A (GB)
Title: Process for the dehydration of fatty sludge and the recovery of chemicals
IPC: B01D17/05
Filed: 1974-08-06
Abstract: 1468092 Recovering fatty substances APOTHEKERNES LABORATORIUM FOR SPECIAL-PRAEPARATER AS 6 Aug 1974 [28 Jan 1974] 34670/74 Addition to 1468091 Heading C5C Fatty substances are recovered from aqueous effluents as described in the parent Specification but in addition the stabilized sludge containing the stabilized fatty substance or degradation product thereof is acidified so that it separates into an upper concentrated fatty sludge phase and a lower aqueous phase. The acids used may be hydrochloric acid or soap stock (as defined). The upper fatty sludge phase is separated from the aqueous phase and the former is heated to form an upper phase containing technical fatty acid and a lower aqueous phase containing the precipitation chemicals used to precipitate the original stabilized aqueous fatty sludge, these two phases then being separated.
Patent GB-1000704-A (GB)
Title: Improvements in or relating to strips carrying small electrical component parts
IPC: H05K7/06
Filed: 1961-09-27
Abstract: 1,000,704. Packaging electrical components. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Sept. 27, 1961 [Sept. 30, 1960]. No. 34689/61. Addition to 892,549. Heading B8C. Articles such as valve holders 4 are mounted on a thin electrically insulating strip 1 by passing the tags 3 through apertures 2, the strip being of a material resistant to soldering heat so that it may be mounted in the electrical equipment without removal of the strip after cutting to separate individual articles. The strip may be folded or coiled in spiral or helical form for storage with the interposition of a separator strip. The holders may be secured on the strip by tongues 5 on their sleeves 6 or by the apertures 2 gripping the tags 3.
Patent GB-1169046-A (GB)
Title: Improvements in or relating to Self-Aligning Bearings
Inventor: ELGES HELMUT
IPC: F16C23/04
Filed: 1967-07-28
Abstract: 1,169,046. Self-aligning bearings. H. ELGES. 28 July, 1967 [13 Aug., 1966; 25 Jan., 1967], No. 34704/67. Heading E2F. A self-aligning bearing comprises an inner ring 6 having a part spherical outer bearing surface and movably - mounted in an outer ring 1, 2 having a complementary c o ncave inner bearing surface, the side faces 4 of the outer ring are provided with an annular recess 7 adjacent the bearing surfaces of the inner and outer rigs, which recesses are filled with a resilient material e.g. rubber forming annular sleeves 9 which seal the bearing. The outer ring may be provided with a plurality of injection holes 5 extending radially therethrough and communicating with the annular recesses and the sleeves 9 may project beyond the side faces of the outer ring to form sealing-lips 9'. Radial holes 10 supply lubricant and annular channel 13 makes centring easier during assembly. In another embodiment of the bearing outer ring is provided with a plurality of axial grooves located adjacent the bearing of the inner and outer rings, extending inwardly of hook-shaped recesses and filled with a resilient material to form tongues, the axial grooves being semi-circular in cross-section at their outer edges and their cross-sectional area decreasing as they extend inwardly.
Patent GB-523771-A (GB)
Title: Improvements in clutches for securing to a shaft a pinion wheel or other member rotatably mounted upon the shaft
IPC: F16H63/30
Filed: 1938-12-15
Abstract: 523,771. Variable - speed gearing; clutches. WILLANS, K. W. Dec. 15, 1938, No. 34714/37. [Class 80 (ii)] A clutch device particularly for use in variable speed and reversing gearing, for securing loosely mounted gears to their shafts, comprises a number of radially arranged plungers 25, Fig. 3, in a cylinder block 23 secured to a shaft 7 which are adapted to be moved outwardly by fluid pressure to engage projections 34 on the internal surface of a drum 26 integral with a gear wheel 8 loosely mounted upon the shaft 7. The sides of the projections 34 and the ends of the plungers are bevelled so that slip is allowed at excessive loads, the pressure fluid supplied through conduits 19 and 20 being controlled as required for engagement of the clutch device and limited by means of pressure relief devices to determine the slipping point. The value of the fluid pressure may be controlled by adjustment of the relief valve or valves either manually or automatically in accordance with the governor or throttle control of the driving engine. A second set of the engaging plungers 25 may be provided to be brought into engagement after the first set and to provide a positive clutching action,by suitable shaping of the projections and ends of the plungers. The clutch devices of the invention are shown at 11 and 16 in Fig. 1 in a reversing gear mechanism comprising a driving shaft 7, a driven shaft 10 and a layshaft 14, and are adapted to clutch alternatively the gears 8 and 13 to their shafts. The mechanism of Fig. 1 is modified in Fig. 2 to give two forward speeds of the driven shaft 10. Any of the gears of the two trains may be provided loose and be adapted to be clutched to its shaft.
Patent GB-1217329-A (GB)
Title: Improvements in and relating to a method of and apparatus for measuring, indicating or controlling the consistency of material
Inventor: BABB ALFRED THOMAS SYMONDS
IPC: G01N11/14
Filed: 1967-07-28
Abstract: 1,217,329. Determining consistency of materials. J. LYONS & CO. Ltd. July 29, 1968 [July 28, 1967], No.34805/67. Headings G1N and G1S. A method of determining the consistency of a moving mass of dough or similar material comprises immersing a rotatable, bladed sensor 11 in the material, rotating the sensor and determining the consistency of the material as a function of the resistance to rotation of the sensor presented by the material by a measuring device 37 arranged to respond to the torque exerted on a shaft 23 of a differential drive 15 for the sensor, the measuring device being coupled to the shaft by a spring (33), Fig.2 (not shown), so as to have a reduced response to rapid fluctuations of the resistance, the sensor being shaped and positioned so that the rate of flow of the material has a negligible effect on the rotation of the sensor. A shaft 17 drives a cage carrying level gears 19, 20 which mesh with a level gear 21 to rotate a shaft 12. One end of the spring (33) is connected to the shaft 23 of a level gear 22 whilst the other end is connected to a member having an arm 35 which bears against an actuator 36 for the measuring device in the form of a transducer 37 comprising a resistive bridge strain gauge. The transducer is connected via a control unit 38 having a meter 39 to a strip chart recorder 40. The input circuit of the chart recorder includes a variable time constant to provide further damping of any rapid fluctuations of the resistance to rotation of the sensor. Various constructions of the blades of the sensor, which may be angled to prevent the flow of material impeding their rotation, are described. The torque applied to the shaft 23 due to the resistance to rotation of the sensor by the material may be measured pneumatically instead of electrically as described.
Patent GB-207710-A (GB)
Title: Improvements in horse and like shoes
IPC: A01L7/02
Filed: 1923-08-29
Abstract: 207,710. Watts, G. H. Aug. 29, 1923. Renewable calks and treads; bar - shoes. - Shoes of the type comprising one or more channels 3 in which are housed one or more lengths of fibrous material 7, the ends of which are housed in undercut recesses 5, are provided with channel bridgemembers 12 adjacent the recesses 5. Spikes 10, 6 in the base of the shoe and on the inner wall thereof respectively help to secure the packing. In a modification the heel-bar 2 is dispensed with, the heel-bar of the shoe being provided with simi lar recesses 5 and bridge-members 12 to those in the toe-piece 4. The nail-heads project slightly into the channel 3 to help hold the packing from movement. The shoe is pressed from a single blank or from several blanks which are welded together, the spikes 6 being formed by slotting the inner wall. Some or all of the nails may pass through the rope.
Patent GB-1105177-A (GB)
Title: Improvements in semiconductor devices
IPC: H01L29/74
Filed: 1965-08-13
Abstract: 1,105,177. Semi-conductor rectifiers. GENERAL ELECTRIC CO. 13 Aug., 1965 [31 Aug., 1964], No. 34821/65. Heading H1K. A semi-conductor rectifier comprises at least three layers, adjacent layers being of unequal resistivities, and forming at least one PN junction, and means to increase the surface breakdown voltage comprising a relatively thick region surrounding a thinner inner region where avalanche breakdown occurs initially. Fig. 1 shows a PIN diode device of silicon or germanium in which the central region 16 underlying electrode 18 has a thin intrinsic layer 12 and is designed to provide the desired rectifier and avalanche breakdown characteristics. In the surrounding region 17 the intrinsic layer 12 is thicker to prevent surface breakdown. A controlled rectifier comprising P, N, N-, P, N layers is also described in which the thickness of the N- layer is increased in the outer region to achieve the same purpose; the impurity concentrations of the layer may be 10<SP>20</SP>, 10<SP>17</SP>, 10<SP>13</SP>, 10<SP>18</SP> and 10<SP>21</SP> respectively. The device may be produced by diffusing phosphorus and boron into high resistivity silicon.