baber/WOPTO huggingface dataset:
Patent GB-801941-A (GB)
Title: Improvements in or relating to control systems for steering a craft
IPC: B64C13/24
Filed: 1956-02-28
Abstract: 801,941. Automatic steering control systems. BENDIX AVIATION CORPORATION. Feb. 28, 1956 [March 4, 1955], No. 6222/56. Class 38 (4). [Also in Groups XXIX and XXXIII] In a steering control system for a craft, manual operation of a control stick produces elastic deformation of the stick transversely to its length between two longitudinally spaced sections and thereby relatively displaces two elements of a pick-off to generate an electric signal controlling servo-operated steering gear. In an aircraft autopilot pitch attitude is automatically stabilized by an artificial horizon 21, Fig. 1, A.C. signals from the pitch pick-off 50 of which control the elevators through an amplifier 14 and servomotor 17. Follow-up is provided by an inductive device 54 operated with the elevators. Similarly, bank attitude is automatically stabilized by the artificial horizon, signals from the bank pick-off 36 of which control the ailerons through an amplifier 13 and a servomotor 16. Follow-up is provided in this case by an inductive device 30 operated with the ailerons. To stabilize the heading automatically, signals from an earth inductor compass 19 control the bank attitude through a follow-up type servo-system 20 operating, through a clutch 22 an inductive device 24 in the input of amplifier 13. Properly co-ordinated turns are ensured by a rate-of-turn gyro 18, signals from an inductive pick-off 40 of which control the rudder through an amplifier 12 and servomotor 15. Follow-up is provided by an inductive device 43 operated with the rudder. Each of the servomotors 15, 16, 17 is of the electric induction type, the reference phase winding of which is energized through adjustable transformer 60, 61 or 62 so that motor torque is limited to permit direct mechanical movement of the control surfaces if more than a predetermined force is applied to a manual control column 8 and/or pedals 9. Control column 8 is moved in a fore-and-aft direction to produce pitch and in a transverse direction to produce bank. When a force less than that necessary to overcome the servomotors is applied to control column 8, inductive devices 64, 65, sensitive to strain of the control column when moved in the fore-and-aft and transverse directions respectively, produce signals which are respectively applied to the aileron and elevator control channels so that powerassisted banking and pitching of the aircraft is obtainable. Low-pass filters 70, 71 eliminate unsteady movements of the control column. As shown in Fig. 2, strain of the control column produces relative movement between members 119, 171 respectively attached by clamps 107, 109 at spaced points along control column 8. Inductive devices 64, 65 are mounted on member 119 and their rotors are respectively operated against springs by member 171 when the control column is moved in the fore-and-aft or transverse direction. Specifications 662,831, 662,858 and 781,346, [Group XXIX], are referred to.
Patent GB-1374151-A (GB)
Title: Variable hydrostatic pumps with output limiting devices
IPC: F04B49/00
Filed: 1972-02-10
Abstract: 1374151 Variable delivery pump control CONSTANTIN RAUCH 10 Feb 1972 [12 Feb 1971] 6259/72 Heading G3P Servomotors 2, 2' controlling the delivery of pump 1 are connected at pin-and-slot 7 to a floating lever 8 which is pivoted at 9 to pilot spool 10 and connected by further pin-and-slot mechanisms 11, 21 to a manual or hydraulic input plunger 12 and to a rotary cam follower 20 respectively. The cam follower co-operates with a cam 18 at the end of a piston 13 biased at 14 into abutment with piston 22 responsive to pump output pressure as supplied by selector 4. Movement of plunger 12 or pistons 13, 22 causes lever 8 to pivot at 7 and displace spool 10 which admits output fluid to one servomotor or the other until recentred by the lever. For reversible pumps the piston 1 3 may have diametrically opposed cams 18 co-operable alternately with opposed points on the follower, and each cam may be profiled to maintain pump delivery times output pressure constant. A number of cams providing different control characteristics may be provided for each direction of pump delivery ground piston 13 and may be brought into operation by rotating the piston, e.g. via spring seat 17. Output pressure may also act on piston 13 via pressure limiting valve 24.
Patent GB-1015820-A (GB)
Title: Machine for forming meat balls and automatically placing the meat balls in cans
Inventor: MILLER JACK MEREDITH
IPC: A22C7/00
Filed: 1964-02-14
Abstract: 1,015,820. Packaging meat balls; dispensing measured quantities of meat paste. MARLEN EQUIPMENT CO. Feb. 14. 1964, No. 6342/04. Headings B8C and B8N. [Also in Division F2] Meat balls are stripped from a forming and ejecting mechanism on to a conveyer which delivers them into a can detained at the delivery end of the conveyer until it has received a predetermined number of meat balls. In the form shown, meat ball mixture 25 from a casing 20 (see Figs. 5, 9) is forced into pockets 17 arranged in three rows in a rotating cylinder. Pistons 18 moved radially by a fixed cam 31 force the meat balls out of the pockets from which they are stripped by adjustable driven rollers 38, 39 on to a conveyer 40 from which they are placed in cans. The size of the meat balls may be adjusted by movement of the idler roller 26 on which the inner ends of pistons 18 ride. The delivery end of the conveyer 40 may be raised or lowered by adjustment of the yoke 76. Cans 83 are delivered by gravity down a shoot 84 to a detent mechanism 85 operated by an electromagnet to hold each can long enough to receive either two or three rows of meat balls, according to which of two timing switches has been selected to control the electromagnet. The timing switches are controlled by corresponding cams rotating at different speeds, and the moment at which the detent is released can be adjusted by axial movement of the operative cam (see Division F2). The filled cans are deposited in upright position on an off-take conveyer 86 (Fig. 1).
Patent GB-1033365-A (GB)
Title: Improved activated fuel cell electrodes and methods for their activation
IPC: H01M4/94
Filed: 1963-04-17
Abstract: A coating of Pd, Pt, Rh or a mixture of Pd and Rh, Pt and Rh or Pt and Ir is deposited on one or both surfaces of a PdAg alloy membrane to form a fuel cell electrode as described in Specification 1,033,362, after first exposing the membrane to hydrogen either by passing hydrogen into the membrane at a high temperature or by cathodic treatment in sulphuric acid or potassium hydroxide. Palladium may be deposited in a bath of PdCl2.  The membrane may be supported on an O-ring between a polythene container (Fig. 2, not shown) and a cap having a platinum mesh electrode.  The coating being deposited with or without an applied current.
Patent GB-1135805-A (GB)
Title: Method of forming an extended body from a fluent, hardening material
IPC: E21B17/00
Filed: 1966-02-14
Abstract: 1,135,805. Wells etc.; piles. A. G. BODINE. 14 Feb., 1966, No. 6447/66. Headings E1F and E1H. A method of forming an elongated body (e.g. a borehole or tunnel lining, or a hollow pile) comprises feeding fluent hardening material (e.g. concrete) into a parallel space between an elongated, elastic slip form die and a fixed die (e.g. the ground), vibrating the slip form die until the material has hardened, and after hardening removing the slip form die. The formation of a lined borehole is shown, the slip form die 11 in accordance with Specification 1039645 being of steel and carrying a vibration generator 40a, 40b. The die 11 may be vibrated as it is withdrawn from the borehole. The die 11 may be vibrated and driven into the ground to produce the borehole, and a releasable drive cap of larger diameter than the die may be fitted at the dies lower end.
Patent GB-1170503-A (GB)
Title: Distortion Correction Apparatus for Cathode Ray Tube
IPC: G06V10/10
Filed: 1967-02-10
Abstract: 1,170,503. Cathode-ray tube circuits. INTERNATIONAL BUSINESS MACHINES CORP. 10 Feb., 1967 [18 Feb., 1966], No. 6484/67. Heading H4T. In cathode-ray tube apparatus in which relatively low frequency X, Y signals and relatively high frequency X, Y signals simultaneously deflect the beam pin-cushion distortion is corrected by means of separate correction circuits for the low and high frequency signals. The invention is described as applied to character recognition systems in which the beam of a flying-spot scanning cathode-ray tube 11 is deflected under the control of generators 12 and 13, operating at relatively low frequencies, to the X, Y co-ordinate positions of the various characters, each of which is then scanned by a vertical line raster produced under the control of relatively high-frequency deflection signals from generators 17, 18. Pin cushion distortion in the deflection produced by generators 12 and 13 is corrected by a known circuit 14, the outputs VKX, VKY of which are combined subtractively with the actual deflection signals from generators 12, 13 in drivers 15, 16 and supplied to X, Y deflection coils for the main positioning (macro deflection) of the tube beam. For correcting distortion which would otherwise occur in the raster scan produced by generators 17, 18 (micro-deflection) a circuit 21 (detailed in Fig. 2, not shown) supplies correction voltages Vfy, Vfx which control the operation of generators 17, 18 to produce corrected deflection waveforms Vxs, Vys for application to separate deflection coils via driver stages 19, 20. The correction voltages Vfy, Vfx comprise voltages proportional to the square of the micro-deflection voltages when + VXL and +VYL are greater than zero and -VXL and -VYL are less than zero the correction voltages being zero for all other conditions. A suitable circuit for generator 17 or 18 is described with reference to Fig. 4 (not shown). The microdeflection may be effected by a sine wave instead of by sawtooth waves and single horizontal and vertical deflection coils to which the combined corrected deflecton waveforms are supplied may replace the separate deflection coils shown.
Patent GB-782590-A (GB)
Title: Improvements in devices for connecting hose pipes to taps or the like
IPC: F16L21/00
Filed: 1955-03-07
Abstract: 782,590. Connecting pipes to taps &c. SMITH, R. M. June 5, 1956 [March 7, 1955; Jan. 16, 1956], Nos. 6591/55 and 1377/56. Class 99(1). A band 15 fitted on a one-piece rubber moulding having a socket 10 with internal ribs 12, for fitting to a tap &c., and a stem 11 for connecting to a hose pipe, can be tightened to vary the inclination of the ribs to suit the size of tap and the back pressure of the fluid. Ridges 13, 14 prevent the band from slipping off when not in use, the part 18 between the socket and the stem is of cup formation and the interior surface 20 is convex to prevent ballooning due to fluid pressure, a ferrule 21 is fitted on the stem, and an adaptor 22 has a flared end 24.
Patent GB-896053-A (GB)
Title: Separation of silica from zirconium or from zirconium and hafnium
IPC: C01G25/00
Filed: 1960-02-25
Abstract: A process for removing silica from zirconium or from zirconium and hafnium comprises reacting zircon with alkali metal hydroxide or carbonate to convert a portion of the silica to alkali metal silicate, extracting the silicate with water, dissolving the residue in sulphuric acid to form an aqueous sulphate solution containing the zirconium or the zirconium and hafnium and remaining silica impurity, the weight ratio in the solution of SO4 to Zr or Zr and Hf being from 2,5 to 7,5, the free sulphuric acid concentration being from 10% to 45% by weight, and heating the solution to at least 125 DEG F. until the remaining silica has precipitated, and removing the precipitate. The solution may be heated to 175 DEG F. to 225 DEG F., or to 300 DEG F. to 600 DEG F. under superatmospheric pressure.  Zirconium and hafnium hydroxides or hydrates may be precipitated from the silica-free solution by adding an alkali, e.g. ammonia or ammonium carbonate, and the precipitate dissolved in nitric acid to give a solution from which the zirconium may be separated from hafnium by extracting with an alkyl phosphate, e.g. tributyl phosphate.  An example is given.
Patent GB-1357742-A (GB)
Title: Inflatable life-saving appliance
IPC: B63C9/125
Filed: 1971-03-11
Abstract: 1357742 Inflatable body for lifejackets BEAUFORT (AIR SEA) EQUIPMENT Ltd 27 Oct 1971 [11 March 1971] 6638/71 Heading A3V [Also in Division B7] A stole-shaped inflatable body for a life jacket comprises an outer envelope of relatively inextensible fabric and a bladder fitted therewithin, each lobe of the body carrying at its lower end an extension 12 provided wtih a piece of filamentary hook material which engages with a complementary piece 16 of filamentary loop material to hold the lower part of each lobe folded over while the body is being inflated by a fixed charge of gas, but if the pressure difference between the interior and exterior of the body exceeds a predetermind value due to ambient conditions, the portion 12 breaks away from the piece 16 to provide the body with additional volume for inflation. In alternative embodiments the complementary pieces of filamentary hook and loop material are provided at the outer sides of the body and at the top of the body to provide folds in the body at these locations. A further embodiment replaces the pieces of hook and loop material by an elasticated panel extending along the periphery of the body.
Patent GB-818428-A (GB)
Title: Ultrasonic soldering iron
IPC: B23K1/06
Filed: 1957-02-27
Abstract: 818,428. Soldering. TECHNICAL CERAMICS Ltd. Feb. 27, 1957 [Feb. 28, 1956], No. 6639/57. Class 83 (4). [Also in Group XXXIX] An ultrasonic soldering iron comprises an electro-mechanical transducer 11, a velocity transformer 12, 13 affixed at its large diameter end to the transducer and carrying at its small diameter end a soldering tip heated by means 16, means 14 to support the transformer at its nodal surface and means to apply electric energy for electrically exciting the transducer. The transducer is a piezoelectric ceramic hollow cylinder formed principally of barium titanate cemented at 22, 23 by a thermo-setting plastic to the transformer formed of two metal parts 12, 13, e.g. of " Invar," Inconel " (Registered Trade Marks), stainless steel or 52 per cent iron, 48 per cent nickel alloy, brazed together at 20 and brazed at the nodal surface 19 to a flange support 14 on a perforated metal housing 10. The support and housing may be of brass, bronze or aluminium. The tip 15 contains a " Ni-chrome " (Registered Trade Mark) heating element secured therein by sodium silicate and alumina. A handle 32 attached to the housing carries switches 30, 31. for the supply from a cable 33 to the element 16 and the transducer. A gas heated solid tip may be used when the unit is mounted on a fuel tank having a burner to heat the work and the tip. The iron may be used in an automatic machine.
Patent GB-1504836-A (GB)
Title: Pressure monitoring device
IPC: G01L17/00
Filed: 1976-02-19
Abstract: 1504836 Pressure warning devices SAFETY RESEARCH & ENG CORP 19 Feb 1976 [3 Nov 1975] 06677/76 Heading G1L [Also in Division B7] A pressure warning device comprises a spring- loaded piston 38, with a diaphragm seal 50; a passage 60 through the piston closed when the pressure on the diaphragm, applied through ports 32, is high or low and forces the piston against seats 64 or 92 respectively; and an acoustic generator 48 energized when an intermediate pressure is applied and passage 60 is not closed. The device screws on to a tyre valve which is opened by member 30. Correct tyre pressure maintains the piston against seat 64. If the pressure falls the piston unseats and an acoustic signal is generated until the pressure falls sufficiently for the piston to reach seat 92. Signals are sensed by microphones on the wheelwells, amplified, filtered and used to operate a lamp or buzzer on the vehicle dashboard. The operating circuit may include a memory device whereby the warning is given only when the operator is present. The acoustic signal is produced by an edge tone generator having a circular knife edge 76 aligned with an annular slit 88; alternatively it is produced by a Hartmann generator. To obtain warning and venting when the pressure is excessive member 66 is replaced by an apertured body 105 carrying a seal 108 and a spring-loaded piston 104. Piston 38 seals against the lower surface of piston 104 unless the pressure is excessive when piston 104 is forced up and gas escapes via passages 112, 110. The second piston may be within the first piston, Fig.5 (not shown). Thediaphragm may be flat, Fig.6 (not shown); the seal 64 may be replaced by an o-ring, Fig.8 (not shown). A filter may be inserted between the tyre and device; the acoustic generator may be covered with a blow off cap; the device may be mounted on the wheel.
Patent GB-919628-A (GB)
Title: Device for securing suspended platforms in ships' holds
IPC: B63B25/18
Filed: 1961-02-23
Abstract: 919,628. Suspended decks. WESER A.G. Feb. 23, 1961 [Feb. 23, 1960], No. 6749/61. Class 113. Carrier platforms 1 are suspended in a ship's hold on cables 2 or chains 7, the platforms resting on carrier members secured to the cables or chains, each carrier member being of greater diameter than the next higher one so that the platforms, on being raised, will pass over the higher carrier members. Three embodiments of carrier members are described. Those illustrated in Figs. 3 and 5 have an aluminium cylinder 10 pressed on to a cable 2, the cylinder supporting a cone comprising either a heapdiece 13, sheet metal side 14 and stiffening plate 16, Fig. 3, or consisting of a solid cone 12. The embodiment shown in Fig. 4 comprises a headpiece 19, through which a chain 7 passes, a sheet metal hemi-sphere 8 secured to the headpiece, a stiffening plate 16, and a wedge 11 passing through a link of the chain and securing it to the carrier member. The carrier members have inverted cones 15 fitted to guide the platforms when the latter are raised. Reinforcing plates 18 which bear on the carrier members are secured to the platforms 1. The height of the platforms may be adjusted by screw means attached to the top of the cable or chain, Figs. 8 and 9 (not shown). Specification 853,827 is referred to.
Patent GB-1138311-A (GB)
Title: A method of and burner for heating an open hearth furnace
IPC: F27D99/00
Filed: 1966-02-16
Abstract: 1,138,311. Gas and oil buners. OSTERREICHISCH-ALPINE MONTANGESELLSCHAFT. 16 Feb., 1966 [17 Feb., 1965], No. 6754/66. Heading F4T. An open hearth furnace is heated by a burner using gaseous, vaporous or atomized fuel, or a mixture of gas and oil, comprising a central Laval fuel nozzle 1, i.e. having a convergent-divergent exit, surrounded by a jacket 8 forming an annular Laval oxygen nozzle 4. The fuel nozzle projects beyond the jacket 8 and is centrally supported by radial ribs 10, Fig. 12 (not shown). The flow direction of the oxygen is parallel to the axis of the fuel nozzle except when the annular nozzle is not of the Laval type in which case it converges conically towards this axis with a core apex angle of 16 degrees. The ratio between the cross-sections of the annular and central Laval nozzles is greater than the volumetric ratio between the amount of oxygen necessary to complete combustion and the amount of fuel.
Patent GB-499921-A (GB)
Title: Improvements relating to thermostats and other thermomotive means
Filed: 1938-03-04
Abstract: 499,921. Lifting-jacks. REINTHALER, J. March 4, 1938, No. 6845. Convention date, Oct. 30, 1937. [Classes 78 (ii) and 78 (iii)] [Also in Group XIII] A pile of plates of mica is found to have a very large heat expansion transversely of the plates, which may be used for lifting, lowering and displacing masses.
Patent GB-887942-A (GB)
Title: An improved heat resisting material comprising self-bonded silicon nitride with silicon carbide dispersed therein and method for producing it
Inventor: PARR NORMAN LAWRENCE
IPC: F01D5/28
Filed: 1959-02-27
Abstract: A heat-resiting shaped body, consisting of self-bonded silicon nitride having a dispersion therein of 5-10% by weight of silicon carbide of particle size less than 400 B.S. mesh, is made by compacting a powdered mixture of 84-92% silicon (e.g. 200 B.S. mesh) and 8-16% silicon carbide into the required shape and firing it in a nitrogen atmosphere, e.g. initially at a temperature between 1250 DEG and 1350 DEG C. then above 1420 DEG C., to effect complete nitriding. Preferably the powdered mixture is compacted into a block, partially bonded by firing in nitrogen (e.g. at 1000 DEG C. for one hour), and then machined into the required shape prior to firing as above.  The shaped body may be glazed by coating it with a fine powder mixture of 5% alumina, 93% silicon and 2% ferric oxide bonded together with cetyl alcohol, and heating to 1300 DEG -1500 DEG C. for three to four hours in an oxygen atmosphere prior to slow cooling.  A dispersion of 2% boron nitride may be included in the body.  Specification 726,812 is referred to.ALSO:A heat-resisting shaped body, consisting of self-bonded silicon nitride having a dispersion therein of 5-10% by weight of silicon carbide of particle size less than 400 B.S. mesh, is made by compacting a powdered mixture of 84-92% silicon (e.g. 200 B.S. mesh) and 8-16% silicon carbide into the required shaped and firing it in a nitrogen atmosphere, e.g. initially at a temperature between 1250 DEG  and 1350 DEG C. then above 1420 DEG C., to effect complete nitriding.  Preferably the powdered mixture is compacted into a block, partially bonded by firing in nitrogen (e.g. at 1000 DEG C. for one hour), and then machined into the required shape prior to firing as above.  The shaped body may be glazed by coating it with a fine powder mixture of 5% alumina, 93% silicon and 2% ferric oxide bonded together with cetyl alcohol, and heating to 1300 DEG -1500 DEG C. for three to four hours in an oxygen atmosphere prior to slow cooling.  A dispersion of 2% boron nitride may be included in the body.  Specification 726,812 is referred to.
Patent GB-140895-A (GB)
Title: An improved hub for wheels made with metallic spokes
IPC: B60B27/02
Filed: 1919-03-19
Abstract: 140,895. Berland, L. A. March 19, 1919. Hubs for wire-spoked wheels comprise a metal tube 1, preferably of seamless steel, provided at each end with a flange 2 formed integral therewith or welded thereto, and cup members 3 with peripheral flanges which abut against and are welded to the flanges on the tube 1 so as to form the complete spoke flanges, the welding together of the parts securing antifriction means in position between the cup members and abutments near the ends of the tube. In the form shown in Fig. 1, the flanges 2 are in the form of an angle-selectioned ring welded to the tube at a suitable distance from its ends. The ball race 5 is held between the cup member 3 and the end of the tube or a plate 6 lying against a shoulder in the cup. In Fig. 2, the abutment plate 6 is shown lying against a shoulder 7 formed in the flange ring 2. In the form shown in Fig. 3, the tube flange is integral and is formed with a shoulder 7 to house the ball race 5. In the form shown in Fig. 4, the welding of the parts secures a distance-plate 8 and the ball-race 5, the cup member and the tube being shouldered to form abutments.