baber/WOPTO huggingface dataset:
Patent GB-748010-A (GB)
Title: Improvements in or relating to gyroscopes
Inventor: BARNES JEFFERY WALTON
IPC: G01C19/44
Filed: 1948-03-25
Abstract: 748,010. Fluid bearings. MINISTER OF SUPPLY. April 25, 1949 [March 25, 1948], No. 8840/48. Class 12 (1). [Also in Group XX] In gyroscopic apparatus the motor is supported by an arrangement in which opposed bearing surfaces are maintained spaced by a gaseous fluid under pressure the supporting part being continuously rotated about an axis passing through the rotors mass centre. In Figs. 1 and 2 a hollow cylinder 11. is mounted on a ring 12 about the gimbal axes 13-13 and 14-14. A stub axis 16 passing through the bearing 15 is rotated by worm-wheel 17, worm 18 and motor 19 and has secured to it a U-frame 20, the arms 21 of which carry the gimbal bearings 22 of a gimbal ring from which is suspended a supporting member 25, the upper face of which has ducts 27 to supply fluid under pressure so as to support the ball 26. The said supporting member is made pendulous by the weight 38. The gyroscope itself comprises coaxial rotors 28 and 29 driven by and forming part of an electric motor (not shown) inside casings 30 and 31 which are joined by channel-sections 32. Leadin wires 34 join the insulated members 35 to the springs 36 and serve as electrical connections and to prevent relative movement about the spin axis between the gimbal ring 23 and the gyro assembly 30-33 mounted in the ball 26. Fracture of the lead-in connections 34 is prevented by the springs 36 while excessive movement is prevented by the fixed stop-arms 37. Capacitative pick-off means comprising a' flat ring 39 and insulated discs 40, 40, 41, 41, responsive to the tilting of the U-shaped member 20, 21, 21 control servomotors acting on the casing 11 which is thus made to follow the gyro assembly 30-33 accurately. In another form of apparatus the rotor is mounted centrally within a spherical casing which in turn is mounted between and by two internally semispherical supporting members having internal ducts for feeding fluid under pressure between the supporting members and the spherical casing, the supporting members being joined together and are rotated inside a hollow cylindrical casing mounted on a gimbal ring. Capacitative pick-off means are provided which are responsive to, and serve indirectly to rectify deflection of the hollow cylindrical casing and semi-spherical supporting members relative to the gyro rotor and spherical casing in which the rotor is mounted.
Patent GB-256180-A (GB)
Title: Adjustable short circuit device for electrical measuring instruments of the induction type
IPC: G01R11/36
Filed: 1926-04-01
Abstract: 256,180. Landis et Gyr Soc. Anon. Aug. 3, 1925, [Convention date]. Induction motor meters; electromagnetic current and pressure meters; phase differences and power factors, measuring.-An adjustable shortcircuit device for induction electricity meters, ammeters, voltmeters, phase meters, &c. comprises an oblong frame open at one side and cut with one or more slots 1, the ends of the limbs 3, 4 being provided with holes 5, whereby they can be clamped together into direct electrical contact by screws. The ends of one or more of the limbs are connected together as required.
Patent GB-225449-A (GB)
Title: Improvements in and relating to the treatment of bagasse
IPC: C13B10/06
Filed: 1924-04-08
Abstract: 225,449. Burunat, A. M. April 8, 1924. Roller mills. - In extracting sugar from bagasse, the layer of bagasse is sprayed with water as it leaves the crushing-rollers, and the wet layer of bagasse is compressed immediately afterwards. As shown, a roller 14 is mounted in spring-pressed bearings 12 adjustable in the vertical guides 11<1> of standards 7 secured to the lower part of the frame of the sugar-cane mill A, B, C. The bearings 12 are adjustable by means of screws 15 acting on the springs 16 to regulate the pass between the roller 14 and the bottom roller C of the sugar-cane mill. The scrape 'blade 3 of the top roller A has an extension or ear 3<1> towards the roller 14 to guide the layer of bagasse, which is supplied with water from an horizontal spray-pipe 18. A guide-plate 19 supports the layer of cane between the roller C and the delivery belt 6. The compressing- roller 14 may be mounted in fixed bearings and may be positively driven.
Patent GB-1512421-A (GB)
Title: Insulating lining for an electromagnetic launder
IPC: B22D39/00
Filed: 1975-03-04
Abstract: 1512421 Electromagnetic launders DIDIER WERKE AG 4 March 1975 [4 March 1974] 8911/75 Heading F4B The inductor 1 and windings 2 of an electromagnetic launder are insulated and protected from the metal melt by a composite lining comprising a glass-fibre reinforced thermally insulating layer 7 bonded by a cement or mortar layer 8 to an insulating refractory layer 9 which in turn is bonded by a further mortar or cement layer 10 to refractory lining material 4, 5 which, in use, is in contact with the flowing metal melt. The glass-fibre reinforced layer 7 carries a layer 6 of glass-fibre matting, and the mortar or cement layers 8, 10 are impermeable to magnetic dust particles. As shown the refractory lining adjacent the flowing melt comprises a magnesite layer 4 and a fireclay layer 5.
Patent GB-416343-A (GB)
Title: Improvements in wireless aerials for use on road vehicles and the like
IPC: H01Q1/32
Filed: 1934-03-22
Abstract: 416,343. Aerials. N.R.S., Ltd., and PRINCE, H. S., 15, Alfred Place, Tottenham Court Road, London. March 22, 1934, No. 9018. [Class 40 (v).] A wireless aerial for a motor-car consists of two wire-gauze or sheet-metal conductors 11, 9, Fig. 2, mounted under the running-boards 6 and connected together by a lead 8, so as to form a Z-shaped assembly. The lead 7 goes to the receiving-set. Fig. 1 shows the construction of each strip. The wire-gauze conductor 1 is encased in a sheet of rubber 2 or other waterproof material with an interposed layer 3 of plyboard or similar material, the whole being riveted together, and connected in position by bolts 5 and distance-pieces 14.
Patent GB-1387813-A (GB)
Title: Pushbutton electric switches
IPC: H01H13/02
Filed: 1971-04-07
Abstract: 1387813 Indicators; latching PLESSEY CO Ltd 6 April 1972 [7 April 1971] 9041/71 Heading H1N In an illuminated push-button switch assembly in which the plungers 3 for the buttons 8 slide through apertures 2 of a panel 1 and are sealed by bellows 6, the illuminating lamps 23 are arranged around the bellows 6 on the front of the panel 1 and are supplied with current via terminals 26 sealed to the panel 1. In the embodiment shown, gallium phosphide lamps 23 are arranged in an annular plastics housing 24 having metallic sockets 25 which are plugged on to the terminals 26. Latching.-The plungers 3 actuate plungers 11 of switches 13 via pivoted plates 10 which provide an amplification of movement. Each plate has a bevelled edge 14 engageable with an edge 15 of a spring loaded apertured latching slide 16 which is caused to move to the right. After full depression, lip 18 passes under the edge 15 whereby the slide 16 is returned to the left under action of its spring 17 whereby the actuated button is held in the depressed position. Actuation of any other button causes the slide 16 to move again to the right to release the previously actuated button.
Patent GB-231895-A (GB)
IPC: H02K17/28
Filed: 1925-04-04
Abstract: 231,895. Sachsenwerk Licht - und Kraft-Akt.-Ges. April 4, 1924, [Convention date]. Alternating-current commutator machines.- The exciting winding of a compensated alternating-current machine consists of an open-coil commutator winding of drum or ring type arranged on the primary member of the machine. In the case of a drum-wound machine the winding may have a shortened pitch. Fig. 1 shows a two-pole ring winding a the open coils of which are connected together at a central point and to a commutator having brushes b<1> - - b<3> joined to the motor secondary winding c and starting resistances e. For better utilization of the armature, the brushes may be made to cover a greater number of segments, or, as shown in Fig. 2, the number of phases in the commutator winding may be increased to six, six brushes being used for each pair of poles, connected as shown. Specification 223,657 is referred to.
Patent GB-853543-A (GB)
Title: Magnesium-base anode metal for use in a primary cell
Inventor: ROBINSON JOHN LIVIC
IPC: C22C24/00
Filed: 1959-03-16
Abstract: An alloy for the anode of a primary cell consists of: Al 1.6-2.5%, Zn 0.8-2.5%, Mg the remainder.  The Zn content of the alloy being from one-half to one times the Al content.  The following may also be present in the alloy: Ca 0-0.5%, Fe not over 0.005%, Ni not over 0.002%, Mn not over 0.1%.  Specification 659,367 is referred to.
Patent GB-1025108-A (GB)
Title: Improvements in fittings for flexible hose and like tubes
Inventor: TEACHER FRANK
IPC: F16L33/01
Filed: 1964-03-04
Abstract: 1,025,108. Hose fittings. OLIN MATHIESON Ltd. March 4, 1965 [March 4, 1964; Nov. 27, 1964], Nos. 9126/64 and 48354/64. Heading F2G. A hose end-fitting comprises an outer socket 6 adapted to receive the externally exposed metal reinforcement 3 of a hose 1 and having a gripping surface 14 on its inner wall formed by annular steps 14, 14a, 14b, 14c to co-operate with a tapered gripping surface 19 on an inner member 7 extending centrally into the socket and threaded at 9 to engage threads 8 on the socket; the taper of the gripping surface 14 being steeper than that of the smooth portion of the member 7 which projects into the socket. The outer end of the member 9 has an external helical ridge or groove 20 of the same hand as the screw thread 9. The space at the head of the screw threads which has surfaces 13 and 18 for gripping the reinforcement 3 may be omitted (Fig. 2, not shown).
Patent GB-403928-A (GB)
Title: Improvements in and relating to electric translating circuits
IPC: H02M7/44
Filed: 1932-03-30
Abstract: 403,928. Mercury-vapour apparatus. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Sabbah, C. A. ; 1, Washington Avenue, Schenectady, New York, U.S.A.) March 30, 1932, No. 9148. Void [Abridged as open to inspection under Sect. 91 of the Acts, March 31, 1932]. [Class 39 (i).] In a parallel type inverter utilizing mercury vapour discharge devices with auxiliary electrodes, means are provided for initiating operation upon energisation of the D.C. circuit comprising a reactance energised momentarily from the D.C. circuit and discharged via the auxiliary electrodes. The auxiliary electrodes 15 are normally energised from the centretapped secondaries of transformers 17, 18, the centre-taps being connected to the cathodes through the operating coil 19 of a mercury switch 20. When the switch 20 is closed the coil 19 is in series with a choke 24 and a condenser 25 across the D.C. circuit 10. When this circuit is energised the current which flows to charge the condenser 25 causes the coil 19 to open the switch 20. This sudden breaking of the circuit causes a high voltage to build up across the coil 19 and a discharge takes place between the auxiliary electrodes and main cathodes of the valves. During normal operation the switch 20 remains open. The condenser 25 is bridged by a high resistance 26 to prevent a charge building up on it. Specification 219,026, [Class 38 (ii), Electric currents, Converting &c.], is referred to.
Patent GB-142271-A (GB)
Title: Improvements in or relating to boxes
IPC: B65D45/16
Filed: 1919-04-11
Abstract: 142,271. Simmons, C. C. April 11, 1919. Lids; corner-strengthening pieces.-The lid of a box &c. is secured in place by corner fittings 1, Fig. 1, which are secured by screws to the sides of the box and have screwed extensions 7 engaged by nuts 10 having cylindrical portions arranged to engage holes 8 in the lid. Each nut 10 is permanently attached to the box lid by a wire 11 engaging a groove in the nut. Additional lid-securing devices arranged as shown in Fig. 2 may be disposed intermediate the corner fittings.
Patent GB-493113-A (GB)
Title: Improvements in and relating to hydraulic apparatus for compressing air
IPC: F04B39/00
Filed: 1937-03-31
Abstract: 493,113. Hydraulic air-compressors. WEBER, S. March 31, 1937, Nos. 9232 and 9233. Convention dates, March 31, 1936 and March 26, 1937. [Class 8 (i)] Apparatus for compressing air comprises two chambers 19, 191 having suction and delivery valves and in which the air is compressed by supplying water under pressure through the pipes 20, 201. The supply of water is controlled by a valve 12 actuated by a control device 2 comprising a diaphragm 3. In the position shown water is supplied through pipes 15, and 7 and moves the diaphragm 3 to the right, discharging water from the chamber 1<1> into pipes 7<1>, 20<1> and chamber 19<1> until the diaphragm 3 actuates the abutment 4<1> and moves the valve 12 to the right whereupon water is released from chamber 19<1> through pipe 24<1> and water is supplied to chamber 1<1> and delivered from chamber 1 to chamber 19 until the abutment 4 is moved to repeat the cycle. The valve 12 may be provided with pistons at its end supplied with water under the control of a pilot valve actuated by the control device 2.
Patent GB-289396-A (GB)
Title: Improvements in or relating to switch control means for electric polishing, waxing or scrubbing apparatus
IPC: A47L11/40
Filed: 1928-03-27
Abstract: 289,396. Inventia Patent-Verwertungs-Ges. April 26, 1927, [Convention date]. Floors, cleaning.-In an electrically-operated polishing, waxing, scrubbing, or like machine pro. vided with a pivotal handle, a switch controlling the supply of electric current to the driving motor and normally open is positively closed by the handle when the angular position of the latter lies within predetermined limits. In the construction shown, the pivotally-mounted handle b engages a spring-pressed lever d, working in conjunction with a switch (not shown), so that current to the motor is switched on when the angular position of the handle is within certain pre-determined limits. If the handle .falls on the floor or is raised to a vertical position the lever d is released to act under the influence of the spring sc as to switch off the current.
Patent GB-635408-A (GB)
Title: An improved combined table and lamp
IPC: F21V33/00
Filed: 1948-04-02
Abstract: 635,408. Electric lamp supports. WALTERS, A. E. April 2, 1948, No. 9284. [Classes 75 (ii), 75 (iii) and 75 (iv)] [Also in Group XIV] A combined table and lamp has a vertical tubular lamp 5 supported by vertical tubes 12, 13, 14 as shown to illuminate both above and below the table top 2. The electric choke is housed in a box 9 when a fluorescent lamp is used. A shade 19 and rotatable shield 22 may be fitted. The tubes 12, 13 are used as conduits for the wires and tube 14 may act as an earth.
Patent GB-703398-A (GB)
Title: Preparation of unsaturated nitriles
Inventor: ARMSTRONG GODFREY PAUL
Filed: 1950-04-15
Abstract: Alpha-beta unsaturated nitriles are produced by the pyrolysis of an alkoxyamide of formula <FORM:0703398/IV(b)/1> in which R1, R2, R3 may be hydrogen, or un substituted alkyl, cycloalkyl, aralkyl or aryl radicals and R4 is an alkyl group.  R1, R2, R3 may be, for example, methyl, ethyl, propyl, butyl, cyclohexyl, benzyl, phenyl, tolyl or xylyl, R4 may be, for example, methyl, ethyl, propyl or butyl.  The starting material is heated to a temperature in the range 250 DEG -550 DEG  C. and preferably the pyrolysis takes place in the vapour phase.  The a -b  unsaturated nitrile produced is isolated from the reaction mixture, most suitably by distillation.  Preferably the starting material is a compound of formula R5O-CH2-(R6)-CH-CONH2 where R5 is an alkyl group and R6 is hydrogen or aralkyl group.  The pyrolysis is preferably carried out in the presence of a pyrolysing catalyst, e.g. alumina, bauxite, silica gel, active earths, acid activated earths, mixed alumina-silica gel catalysts, strong acids such as sulphuric acid and phosphoric acid, esters of strong acids such as isopropyl sulphate, metal oxides or catalyst supports containing mineral acids such as phosphoric acid, or salts thereof, or metal oxides.  The pyrolysis may also be carried out in the presence of an inert diluent, such as nitrogen or steam, in addition to the steam produced in the process of dehydration.  Preferably, the reaction is carried out in the presence of a small amount of volatile acid and/or a small amount of an acid, for example, a mineral acid, is added to the reaction products so as to neutralise any ammonia or amines found during the reaction.  The most suitable acid is acetic acid.  The reaction may be represented by the following equation <FORM:0703398/IV(b)/2> The process is of particular application in the production of acrylonitrile by the pyrolysis of 3-methoxypropionamide and of 2-methacrylonitrile by the pyrolysis of 3-methoxy-isobutyramide. In the examples acrylonitrile is prepared by the pyrolysis of 3-methoxypropionamide in the presence of acetic acid. Specification 703,399 is referred to.
Patent GB-123908-A (GB)
Title: Improvements in Roller Bearings.
Inventor: BRIERLEY FRANK
IPC: F16C33/36
Filed: 1918-06-06
Abstract: 123,908. Brierley, F. June 6, 1918. Roller bearings. - The rollers of a roller bearing are barrel-shaped with cylindrical ends. The central portion a is in contact with the outer race c, and all three portions a, bare in contact with the inner race c. The race c is either cylindrical or spherical. The race c may be extended at j to form an oil bath at its lower part. Specification 121,909 is referred to. Reference has been directed by the Comptroller to Specification 146,831.
Patent GB-777170-A (GB)
Title: Improvements relating to shock testing apparatus
IPC: H02K33/18
Filed: 1955-03-31
Abstract: 777,170. Reciprocating motors. CORCORAN, J. W. March 31, 1955 [April 21, 1954], No. 9354/55. Class 35. [Also in Group XL (a)] An apparatus for shock-testing a specimen comprises means for producing an electrical pulse, and a transducer for transforming the electrical pulse into a mechanical pulse, which is subsequently damped. The transducer 12 comprises magnetic cores 100, 102, with air gaps 104, 106, and respective energized coils 108 and 110. A rigid non-conductive frame 128 carries a coil 126 which passes through the air gaps 104, 106, and also carries the driver 116 to which the specimen is secured. The driver is mounted on flexure springs 118, 120. The transducer is coupled to a pulse generator by terminals 78 and 80; thus when a pulse of current is passed through the coil 126, the magnetic field created reacts with the field of the cores 100, 102, and produces a translational force on the whole frame. including the driver, which imparts a sudden acceleration or shock to the specimen. The movement is damped by the induced E.M.F. in the coil, and decelerated by the springs 118, 120. By opening a switch 130 in a rectifier network 28 forming a high impedance across the terminals 78, 80, the damping can be prevented if required. The magnitude and duration of the pulses may be varied by adjustments in the generating circuit.
Patent GB-182534-A (GB)
Title: Improvements in electric motor controllers
IPC: H02P1/20
Filed: 1921-03-30
Abstract: 182,534. Satchwell, L. March 30, 1921. M a s t e r control systems.-In motor controllers of the separate - contactor type, resistance contactors without magnetic blow-outs are combined with a main-circuit contactor which is fitted with a magnetic blow-out and is arranged to open the circuit in advance of any resistance contactor opening. The arrangement shown in Fig. 1 comprises a maincircuit contactor 3 closed at starting by a coil 4. and a series of resistance contactors 5, 6, 7 having closing-coils in a branch circuit from the contactor 3 and lock-out coils in circuit with the motor armature 1. A master drum controller having its contacts so disposed as to open the contactor 3 in advance of any other may be added to the arrangement. The main circuit contactor is provided with a blow-out and with renewable contacts. The set of resistance contactors is built up from a number of pot-magnets 8. 9, Fig. 2, and corresponding armatures 10 threaded on a rod 13 insulated by mica 14. The closing-coils are wound in the magnets 8, and the lock-out coils in the magnets 9, the armatures normally resting on copper rings 17. Alternative constructions without the central rod are indicated. A reversing contactor comprising four pot-magnets and a spring controlled arma. ture pivoted symmetrically between them may be added.
Patent GB-567895-A (GB)
Title: Improvements in or relating to physical exercising apparatus
IPC: A63B23/12
Filed: 1943-06-17
Abstract: 567,895. Exercising apparatus. VARMA, D. June 17, 1943, No. 9749. [Class 132 (i)] Physical exercising apparatus comprises two anklets connected to a bar anchored through a flexible connection to a fixed support, the anklets D, Fig. 1, consisting of a flexible strap connected by adjustable straps D<2> to a rigid strut D <5> which lies beneath the instep and has a swivel D<6> for attachment to the bar. One anklet is connected to the bar on each side of the anchorage connection. The user lies prone on the ground and by bending one leg, causes the bar to swivel about the anchorage and extend the muscles of the other leg. In a modification, Fig. 3, the anklet .J has side extensions J<1> connected to a block J<4>, an instep bar J<3> being slidable on the extensions J<1>. The block J<4> is connected to the bar by a cord J <5>.
Patent GB-214654-A (GB)
Title: A new or improved clamp for surgical purposes
IPC: A61B17/122
Filed: 1924-04-17
Abstract: 214,654. Miehe, F. April 17, 1923, [Convention date]. No Patent granted (Sealing fee not paid). Generative organs, treating; clamps. - A clamp to be applied to the spermatic cords to cut off or restrict the flow of blood to the testicles comprises two members b, c pivotally connected together at a and pressed together by a screw g. The members b, c are fitted with rubber pads d<1> - - d<4> between opposing pairs of which the spermatic cords are placed. The pad d<4> is separately adjustable by means of a screw f engaging a metal plate e behind the pad. The screw g passes through a sleeve h to prevent contact of the screw threads with the body. The clamp, which may be removed or replaced as required, may be suspended from a belt. If one of the spermatic cords only is to be closed, the pads d<2>, d<4> may be omitted from the clamp. The Specification as open to inspection under Sect. 91 (3) (a) relates also to clamps having jaws elastically connected together at one end and held in the closed position by a spring, and to a clamp wherein the screw g is arranged at the same end of the jaws as the joint a. This subject-matter does not appear in the Specification as accepted.