baber/WOPTO huggingface dataset:
Patent GB-974448-A (GB)
Title: Recovery of chromium values
IPC: C07F11/00
Filed: 1962-10-19
Abstract: A process for the recovery of chromate and/or dichromate values from an aqueous solution containing said values comprises contacting said solution with a water-immiscible organic phase comprising a solution of a secondary or tertiary amine in a water-immiscible organic solvent in order to extract said values into the organic phase, separating the resultant chromium-pregnant organic phase from the aqueous phase and recovering the chromate and/or dichromate values from the organic phase.  The stripping is preferably effected by the use of an aqueous solution of an inorganic acid, base or salt, and the resultant aqueous solution may be treated to yield chromic acid. The initial aqueous solution containing chromate and/or dichromate values may be chromic acid solution from rinses in chromium electroplating processes. The aqueous concentrate obtained by stripping the organic phase is preferably passed through an ion-exchange membrane or a cation exchange column to give chromic acid which may be recycled to a plating bath in the case when the original solution was derived from an electroplating process. Examples are given.ALSO:A process for the recovery of chromate and/or dichromate values from an aqueous solution containing said values comprises contacting said solution with a water-immiscible organic phase comprising a solution of a secondary or tertiary amine in a water-immiscible organic solvent in order to extract said values into the organic phase, separating the resultant chromium-pregnant organic phase from the aqueous phase and recovering the chromate and/or dichromate values from the organic phase. Preferred amines are those in which the hydrocarbon groups each contain 7-22 carbon atoms. The amine may be used in the form of a salt with an inorganic acid. The organic phase preferably contains a longchain aliphatic alcohol or a phosphorus acid ester as a conditioner. The recovery of the chromate and/or dichromate values from the organic phase is preferably effected by the use of an aqueous solution of a stripping agent such as an inorganic acid, base or salt, and the resultant aqueous solution may be treated to yield chromic acid solution (see Division C1). Examples are given.
Patent GB-1513068-A (GB)
Title: Explosive compositions
IPC: C06B47/14
Filed: 1976-09-24
Abstract: 1513068 Explosive compostions ICI AUSTRALIA Ltd 24 Sept 1976 [10 Oct 1975] 39793/76 Heading C 1D An explosive composition comprises by weight 50-90% of a nitrate, chlorate, or perchlorate of an alkali metal, alkaline earth metal or ammonium, 0À1-5% of a galacto mannan gum or a derivative thereof, and 1-30% of an amine solvating agent for the gum. Water may be present in an amount not greater than 5% by weight. Suitable amines are liquid and liquefiable alkalene diamines, alkanolamines, and alkylamines; lists of specific amines, oxidizing agents, gums, and cross-linking agents are given. Other optional additives include nitrocellulose, urea, metals, and surfactants
Patent GB-837156-A (GB)
Title: Power steering apparatus
IPC: B62D3/00
Filed: 1957-12-30
Abstract: 837,156. Vehicle power steering. CLARK EQUIPMENT CO. Dec. 30, 1957 [Jan. 24, 1957], No. 40267/57. Class 79(5) In power steering apparatus in which two speeds of steering are provided from different fluid sources to meet varying operating conditions a lever 28, Fig. 1, connected at one end 26 to the steering gear and at the other end 34 to a followup system is pivoted centrally in a clevis 72 attached to a valve plunger 76 and yieldably mounted on a fixed pin 56, Fig. 2, through an intermediate resilient bush 66. Initial movement of the plunger 76 connects one source of fluid pressure to the :servomotor (not shown) while further movement compressing the resilient bush 66 connects a second source of fluid pressure to the servomotor. The lever 28 is pivotally mounted on a nylon bearing 71 of a sleeve member 68 containing the rubber bush 66. End flanges 70 retain the bush 66 in position and have internal clearances 74 which permit limited movement of the valve mechanism. The followup system is operated through relative turning movement between a trailer and tractor at the steering axis 45, Fig. 3 which causes rotation of a shaft 44 carrying a ball joint 46 on a radial bracket 42. The push rod 36 coupled to the lever 28 is operated from the ball joint 46 through links 38, 40 which permit relative tilting of the trailer and tractor about a longitudinal axis 50 without affecting the followup system.
Patent GB-847896-A (GB)
Title: Improvements in or relating to electro-magnetic relay sets for use for example in anautomatic telephone exchange
IPC: H01H51/06
Filed: 1958-12-15
Abstract: 847,896. Electromagnetic relays. TELEFONAKTIEBOLAGET L. M. ERICSSON. Dec. 15, 1958 [Dec. 16, 1957], No. 40389/58. Class 38 (5). [Also in Group XXXVI] An electromagnetic relay (Fig. 4) comprises a U-shaped channel 1 on which is mounted a coil 4 having an iron core 3. A movable armature 6 is pivoted between two flanges 7, 8 on the channel, a slot 9 being provided to give a resilient mounting. The armature carries a projection 12 which operates the movable spring contact 13, an insulating bush 18 preventing an electrical connection between the frame 1 and the contact, and a contact sleeve 19 on the free end of contact 13 engages with one or other of the contacts 16, 17. A plurality of relays R1- R5 as described are mounted on an insulating plate 20 and the connections between them made by conductors printed on to one or both sides of the plate. The channel 1 is supported on the panel by rivets 2 and the contacts are supported by forcing their ends through suitably positioned holes. The coil leads are similarly positioned by forcing their ends through other holes.
Patent GB-1247073-A (GB)
Title: Novel benzyl-hydrazide derivatives and a process for the manufacture thereof and novel benzylidene-hydrazide derivatives useful in said process
IPC: C07C67/00
Filed: 1969-08-14
Abstract: 1,247,073. Antiparkinsonian &c. medicines. F. HOFFMANN-LA ROCHE & CO. A.G. 14 Aug., 1969 [16 Aug.; 1968], No. 40604/69. Heading A5B. [Also in Division C2] Pharmaceutical compositions, having decarboxylase-inhibiting activity suitable for oral or parenteral administration contain a novel hydrazide of the formula  or acid addition salts thereof in association with compatible pharmaceutical carriers. The compositions may also contain L-dopa or acid addition salts thereof and may be used in the treatment of Parkinsonism.
Patent GB-1149133-A (GB)
Title: Process for melting and decarburising steel scrap
Inventor: BECKER HORST
IPC: C21C5/56
Filed: 1967-09-06
Abstract: 1,149,133. Refining steel. VEREINIGTE DEUTSCHE METALLWERKE A. G. Sept. 6, 1967 [Oct.27, 1966], No.40810/67. Heading C7D. Steel scrap containing more than 17% Cr, or Cr and Ni, or Cr, Ni and Mo is melted and decarburized to produce an end product having 0À03% C or less by first melting it in an arc furnace where the melt is adjusted to the metallic composition desired and any Al, Ti and Si removed by addition of a stoichiometric amount of oxygen or metal oxide, and then transferring the melt to a vacuum induction furnace where decarburization is effected by the addition of oxygen or an oxide such as Fe, Mn or Ni oxide.
Patent GB-961726-A (GB)
Title: Improvements in shears with rotating blades
IPC: B23D25/12
Filed: 1960-11-29
Abstract: 961,726. Shearing. SCHLOEMANN A.G. Nov. 29, 1960 [Dec. 18, 1959], No. 40933/60. Heading B3W. Shears for severing strips 1 trimmed from the edges of sheets as by disc cutters (not shown) comprise rotating blades 3a, 5, the blades 3a being inclined at an acute angle to the radius AM to avoid interference between the strip and the blade-corner C. Wedges 10 clamped by screws 11 hold the blades in helical slots in blade-drums 4a, 6. Opposed shears sever the strips at each side of a sheet, and the severed pieces fall into an inclined shoot (Fig. 1, not shown).
Patent GB-1518707-A (GB)
Title: Electromagnetic printing devices or heads for printers
IPC: B41J2/275
Filed: 1975-10-07
Abstract: 1518707 Electromagnets SOC D'APPLICATIONS GENERALES D'ELECTRICITE ET DE MECANIQUE 7 Oct 1975 [8 Oct 1974] 40933/75 Heading H1P A printing head (Figs. 1, 2) comprises an assembly of plural needles 1 whose ends la strike, e.g. a paper over an ink ribbon to impress marks defining a selected character, in a matrix of lines and columns. The other ends of the needles are motivated by plates 2 cooperating with corresponding electromagnets 3 energizable for marking. Windings 4 surround identical magnetic circuits 5 which are U-shaped with arms 7, 8 of square section, and completed through the plates; secured radially in a semicircle to a single non magnetic base 6. The inner ends of the needles are also radially arranged and pass through a central opening 6a of the base to converge at their ends la. The base comprises an external cylindrical wall 6b and an annular coaxial rib 6c therein; the rib being radially grooved to retain in position each U-shaped magnetic circuit 5 also abutting the inner face of wall 6b. The magnetic circuits are fixed, encapsulated and anchored by moulded thermoplastic material 13 engaging the edge of wall 6b. The plates 2 may be retained by a flat semicircular cover 18 with dependent coaxial semicircular walls 19, 20 of which the former corresponds with wall 6b of base 6 while the latter extends inwardly of arms 7 of the magnetic circuits. Notches 21, 22 of walls 19, 20 are radially aligned with the magnetic circuits 5 and locate plates 2; each of which has a narrow outward portion 23, a central wider portion 24, and a narrow extended inner portion engaging the end of an associated needle. Resilient, e.g. foam rubber pads 26, 27 are adherent to the inner wall of plate 18 adjacent walls 19, 20 and the plate is screwed to base 6; an airgap 30 being provided between each plate 2 and arm 7 of each magnetic circuit so that on energization the plate is attracted towards arms 7, 8 with its outer end held between pad 26 and arm 8 and the plastic material 13. Base 6 is carried on a member 40 on a carriage rod intersecting a cylindrical opening parallel to the base, and is rigid with a member 41 retaining needle support 9 fitted into a rectangular central recess and screwed in position. Support 9 comprises a flat elongated plate 43 having projecting walls 45, 46 parallel to base 6, between which needle guides 47 are fixed. A groove 49 at the forward end of the plate 43 carries a comb 50 having needle guides lined with hard material, e.g. ruby, and the inner ends of the needles have bases engaging the ends 25 of plates 2 against which they are spring loaded. Energization of a winding attracts a corresponding plate towards pole faces 15, 16 to project the associated needle, and on de-energization this is restored by spring 52. The magnetic circuits are of soft iron or high saturation alloy.
Patent GB-982642-A (GB)
Title: Improvements in and relating to apparatus for testing and calibrating instruments orother devices incorporating pneumatic pressure sensitive means
Inventor: MEREDITH WILLIAM HENRY PALMER
IPC: B64F5/00
Filed: 1959-12-02
Abstract: 982, 642. Testing aircraft instruments. LOUIS NEWMARK Ltd. March 2, 1961 [Dec. 2, 1959], No. 41001/59. Drawings to Specification. Heading G1L. Apparatus for testing aircraft'flying instruments comprises a portable self-contained unit consisting of a pipe circuit having connections for coupling the same to the pitot static system or the pitot head and static vent, the pipe circuit being analysed so that part of it is particular to the pitot system and part to the static system. Connections are provided in the pipe circuit for coupling to a reference instrument or instruments, an electrically driven pump and regulating means permitting predetermined conditions to be indicated or produced at the instruments. Signalling means may be provided to give visual or audible warning of conditions likely to damage the instruments.
Patent GB-995765-A (GB)
Title: Improvements in timing devices
IPC: G04F3/06
Filed: 1961-11-16
Abstract: 995,765. Control of motors; electric switches &c. U. FINZI. Nov. 16, 1961 [Nov. 18, 1960], No. 41117/61. Headings H2B and H2J. [Also in Division G4] A device for measuring off a predetermined time comprises a counter driven by a constant speed motor, the attainment of a specified count stopping the motor. Each wheel 18 is made of insulating material and carries a pair of slip rings 19 with contacts 24, adjustable so that the contacts can be set opposite any numeral on the wheel. The slip rings of adjacent wheels are connected by brushes 20, and contacts 24 are bridged at the preselected positions so that when all the wheels reach preselected positions simultaneously circuit is made to an emitter 10, which applies an electromagnetic brake. By operation of one of switches 30 an additional emitter 10a can give advance warning. The counter can be reset and restarted automatically.
Patent GB-1471655-A (GB)
Title: Gaiters or the like for pressure-fluid jacks or rams
IPC: E21D23/04
Filed: 1974-07-23
Abstract: 1471655 Sealing sleeves GULLICK DOB-  SON Ltd 23 July 1974 [1 Sept 1973] 41261/73 Heading F2B [Also in Division E1] A mine roof support gaiter 10 to fit over the piston-cylinder junction of a pressure-fluid jack has a draw device 17 having ends that mate or fit together to tighten the gaiter about the jack, the gaiter material being recoverably stretched, buckled or crumpled during movement of the ram. The device 17 may be of wire with loop ends 18 engageable with a tool to twist them together, the wire being located in a hem 14 and the gaiter being in a canvas material. The upper end of the gaiter may have eyelet holes 11  for engagement with the roof engaging part of the support and may be cut-away 12 to clear components of the support.
Patent GB-1048426-A (GB)
Title: Improvements relating to potential difference detecting arrangements
Inventor: DAYSON RONALD CYRIL
IPC: G01R19/165
Filed: 1963-10-22
Abstract: 1,048,426. Transistor switching circuits. ENGLISH ELECTRIC CO. Ltd. Oct. 20, 1964 [Oct.22, 1963], No. 41585/63. Heading H3T. [Also in Division G1] Two transistors 23, 24 of opposite conductivity types with corresponding electrodes joined in parallel are connected in series with a current-operated warning device 19 (e.g. a lamp). If the voltage between points 12 and 15 should rise above a predetermined value, due to an open circuit of resistor 13 or 14, one or other of the transistors will conduct, depending on the polarity of the voltage, and the warning device will be operated. The whole transistor circuit may be reversed with respect to the points 12 and 15.
Patent GB-1443464-A (GB)
Title: Optical projection apparatus
IPC: G03B21/132
Filed: 1973-09-05
Abstract: 1443464 Projectors LINDACO Ltd 5 Sept 1973 [12 Sept 1972] 41686/73 Heading G2J A projection apparatus comprises a supporting surface e.g. glass plate 26, for a picture to be projected, lamps 24 for illuminating the picture, a TV-set 27, and an optical system including a mirror 22 and lens system 21 arranged to project either a TV-picture or the picture supported on the plate 26 on to a viewing screen. The plate 26 is frosted and covers an aperture 30 in a table 25. The TV-set is mounted on a movable support 28 so that the TV picture screen may be received in the aperture 30 for projection after removal of the plate. The apparatus may also include a film or diascopic projector 31. An image from the projector is reflected by a hinged mirror 32 on to the frosted glass plate 26, thus forming a visible intermediate image. This image is then projected, by the optical system, on to the viewing screen. In an alternative embodiment the TV-set is fixed to the underside of the table which is transparent and does not have an aperture. The intermediate image of the diascopic projector is formed by reflecting light from the projector, which is positioned above the table on to a white sheet placed on the table.
Patent GB-989087-A (GB)
Title: Improvements in or relating to electric toasters
Inventor: BYRNE PHILIP LOUIS
IPC: A47J37/08
Filed: 1962-11-05
Abstract: 989,087. Electric toasters. GENERAL ELECTRIC CO. Ltd. Oct. 25, 1963 [Nov. 5, 1962], No. 41745/62. Heading A4D. [Also in Division H2] In a toaster of the pop-up type, having a casing with end plates of moulded insulating material, electrical components are mounted on the end plates. As shown, a timer chassis 96 and lugs 29, 34 and 36 for making contact with the tags at the ends of three heater elements are screwed to end plate 2. A parallelogram bread carriage linkage has a further spring-urged link bent to form a driven bar 52 which engages under arm 49 to lift the carriage. On lowering the carriage, by depressing a knob attached to arm 49, lug 74 engages carriage holding latch 75 and insulating member 78 opens shorting contacts 79 and 80 of heater 85. The main switch contacts, mounted on the opposite end plate, are simultaneously closed. Heater 85 heats bimetallic strip 84 which is mounted to flex about knife edge 86. As the strip 84 flexes, upper latch 76 is moved, by spring 81, into an operative position with regard to lug 74. The heating is completed as strip 84 engages the tail 82 of latch 75 to free lug 74 for transfer to latch 76 at a slightly higher level. The upward movement is sufficient for member 78 to clear contact 79 and de-energize heater 85. As strip 84 cools, it moves tail 83 of latch 76 to free lug 74 and allow the bread carriage to rise. The toasting period may be adjusted by moving a slide 90 to vary the distance of abutment screw 88 from strip 8. A bread carriage (Figs. 1 and 2, not shown) in the form of a U-shaped wire bracket with sinuous bread supporting limbs, each extending into the toasting chamber, is described.
Patent GB-914358-A (GB)
Title: Apparatus for effecting propulsion in a fluid
Inventor: CROOM-JOHNSON DOUGLAS
IPC: B63H1/30
Filed: 1959-12-08
Abstract: 914,358. Propelling by reciprocating devices. SEAJAY CRAFT Ltd. Dec. 5, 1960 [Dec. 8, 1959], No. 41778/59. Class 114. Apparatus for effecting propulsion in a fluid comprising a buoyant handle 11 and a collapsible conical envelope 12 has two rigid arms 15, 16 extending on opposite sides of the handle so that when the handle is moved in a direction such that the envelope is caused to collapse by the fluid, the arms and intervening portion of the handle maintain a space within the envelope readily entered by the fluid when the movement of the handle is reversed. The free ends of the arms are joined by strips 17 which pass on either side of the handle.
Patent GB-1484347-A (GB)
Title: Buoyancy control for divers
IPC: B63C11/30
Filed: 1974-09-30
Abstract: 1484347 Buoyancy control B L BUCKLE 30 Sept 1975 [30 Sept 1974] 42378/74 Heading B7M In a buoyancy control system 1 for a diver a reservoir comprising a length of coiled or serpentine tubing 8, has gas inlet 30 and outlet valves 19 and water inlet 27 and outlet valves 18. The system 1 is in the form of a backpack having arms 3, containing the ends of tubing 8 and meeting at a manual control 4, the pack including a pair of compressed air cylinders (11), Fig. 3 (not shown) connected via a pressure reducer (33) and line 32 to gas inlet valve 30. Depression of button 27 unseats a valve disc (29) from a plurality of holes (8b), Fig. 6 (not shown), in the wall of chamber 8a which communicates with tubing 8, thus admitting ambient water, and through spindle 26 operates valve 23 to connect pipe 22 via pipe 24 to the air cylinders thus opening gas outlet valves 19. Release of button 27 closes holes (8b) and vents pipe 22, thus closing valves 19. Operation of valve 30 introduces air at approximately 200 psig via pipes 35, the presure build-up opening water discharge valves 18. A second gas inlet valve 31 is linked directly via line 36 to the air cylinders so that air at approximately 3000 psig may be introduced into tubing 8 in an emergency. The air cylinders may also feed a breathing mask.
Patent GB-1400585-A (GB)
Title: Inclinable articulated jib for hoisting and transporting loads in particular for cranes
IPC: B66C23/26
Filed: 1972-09-13
Abstract: 1400585 Jib cranes GALLAY SA 13 Sept 1972 [15 Sept 1971] 42427/72 Heading B8B A mobile jib crane, Fig. 1, comprises an articulated jib with a foot 3 and a head 5 pivoted together at 4. A constant length sling 14 is attached at 15 to platform 1 and to the pivot 4. A rod 8 is linked to the pin 4 and is connected at its end 11 to the jib head at 10 by a cable 9 which also passes, by way of pulley assembly 13, to a luffing winch 12 on the platform 1. As shown the jib head 5 is at an angle to the jib foot 3. Operation of the winch 12 to raise the jib head 5 brings stops 16, 17 on the foot and head jib sections 3, 5 into contact, whereupon further raising action by the winch 12 moves the two sections, now in line, as a unit (the cable 14 becoming slack). In a modification, Fig. 5 (not shown), the pulley assembly 13 is housed within the jib foot 3, an upper pulley block (25) being fastened at the upper end of the jib foot 3 with a lower pulley block (24) being free to move as the cable 9 is actuated by the winch 12. In the embodiment shown in Fig. 7 the pulley assembly 13 comprises movable upper and lower pulley blocks 27, 24 each associated with a respective stop 30, 31 which stops replace the stops 15, 16. The stop 31 is adjustable in position to allow the angle between the jib foot 3 and the jib head 5 to be other than 180 degrees when they move as a unit. The length of the sling 14 may be adjustable to permit selection of the initial angle of the jib foot 3 to the platform 1.
Patent GB-1517788-A (GB)
Title: Method and device for treating coca butter-containing masses
IPC: A23G1/18
Filed: 1975-10-21
Abstract: 1517788 Controlled heat-treatment of chocolate KREUCOHA AG 21 Oct 1975 [24 Oct 1974] 43120/75 Heading A2B In the treatment of cocoa butter-containing masses, such as molten chocolate, for subsequent processing by mildly cooling the mass from a first temperature, e.g. 45-50C, which is above the highest melting point of the mass, to a second temperature, e.g. 28-29C, at which a pre-crystallisation is initiated, and thereafter mildly heating the mass, without over-heating, to a processing temperature, e.g. 33-34C, the occurrence of heat production is sensed during cooling and terminated in dependence upon the occurrence of said heat production. Suitable control circuitry is illustrated and described.
Patent GB-1171291-A (GB)
Title: Screw Rotor Machines
Inventor: SCHIBBYE LAURITZ BENEDICTUS
IPC: F01C20/12
Filed: 1965-10-12
Abstract: 1,171,291. Refrigerating. SVENSKA ROTOR MASKINER A.B. 11 Oct., 1966 [12 Oct., 1965], No. 43204/65. Heading F4H. [Also in Divisions F1 and G3] A refrigerating system includes an evaporator 18, Fig. 3, and a rotary compressor 10 of the meshing-screw type wherein the pressure ratio and/or mass rate of flow of working fluid can be varied, the cylinder 102 of an hydraulic servomotor (see Divisions F1 and G3) for effecting such variation being supplied with working fluid, i.e. oil, by a pump 14 through a throttling-valve 16 that is regulated in accordance with pressure and temperature changes in the evaporator. The input side of the pump 14 is connected to an oil separator 12, the output pressure of the pump being limited by a valve 15. A proportion of the oil delivered by the pump passes through conduits 17, 19 to lubricate the bearings of the compressor. Alternatively, the servomotor is controlled by a valve-member (240), Fig. 4 (not shown), which is regulated by a plurality of solenoids (230) electrically connected to a control device 232, Fig. 5, that responds to signals from a temperature-sensitive device 240 associated with a brine coil 238 within the evaporator 18, the said signals being transmitted periodically by a time switch 242 so that, if necessary, said valve-member is operated accordingly by temporary energization of an appropriate one of the solenoids (230). A portion of the valvemember is lodged within a tubular housing 224 containing the solenoids and carries a piece of magnetic material (222) that is displaced through a fixed distance when an adjacent solenoid is energized.