baber/WOPTO huggingface dataset:
Patent GB-1490815-A (GB)
Title: Separation of platinum group metals and gold
IPC: C01G7/00
Filed: 1975-07-28
Abstract: 1490815 Separation of Pd and/or gold NATIONAL INSTITUTE FOR METALLURGY 28 July 1975 [9 Aug 1974] 31418/75 Heading ClA A method of separating at least one of gold or palladium from a solution containing the chloride complexes of the metals together with other platinum group metals, comprises contacting the solution with a solvent extractant of formula R 1 -S-R where R 1  and R are the same or different, having a carbon atom joined directly to the sulphur atom, and thereafter separating the two phases and recovering the extracted Au and/or Pd, which may be obtained by stripping the extractant with solutions such as acidic thiourea, aqueous ammonia, or basic sodium sulphite. The loaded extractant may be washed with dilute HCl prior to stripping. Preferred extractants include di-n-octyl sulphide, di-n-hexyl or methyl-n-decyl or tetiary butyl-decyl sulphides. When the starting solution contains selenium, this may be removed either by oxidation or precipitation prior to extraction.
Patent GB-856609-A (GB)
Title: Improvements relating to apparatus for opening the tap holes of furnaces
IPC: C21B7/12
Filed: 1959-09-15
Abstract: 856,609. Tapping metallurgical furnaces. DANGO, B., and DIENENTHAL, H. Sept. 15, 1959 [Sept. 16, 1958; April 21, 1959], No. 31461/59. Class 51 (2). A drill 13 for tapping a metallurgical furnace has a mounting 10 adjustably supported by spindles 8, 8<SP>1</SP> from a yoke 3 rotatably mounted on a swinging arm 2. The yoke 3, adjustable in a horizontal plane, and the mounting 10 adjusted to the necessary inclination, are swung to an out of use position by a motor 14. The drilling machine 12 and drill rod 13 are axially displaced in the mounting 10 by a motor 11, a catch 17 disconnecting the machine 12 and drill rod 13 if a break out occurs. Indicating devices 15, 16 determine the depth of the tap hole drilled. The yoke may be mounted on an arm guided perpendicular to the tap hole runner in a frame, Figs. 3 and 4, not shown, on a plunger moving up and down in a tube vertically above the runner, Figs. 5 and 6, not shown, or on a trolley running on rails spaced above and parallel to the top hole runner, a catch holding the trolley in position during drilling. A yoke 33, Fig. 10, carrying a mounting 34 for a crown drill and a second mounting 35 for a cheap tool for the final tapping is mounted on arm running transversely of the runner, and adjusted so that the drills mav be used in turn and then retracted to the out of use position 37.
Patent GB-736521-A (GB)
Title: Improvements in or relating to tractors or the like and auxiliary gear units therefor
Inventor: HAVERIENDER KARL
IPC: F16H63/04
Filed: 1952-12-16
Abstract: 736,521. Change-speed gearing. HANNOVERSCHE MASCHINENBAU - AKT. - GES. VORM. G. EGESTORFF (HANOMAG). Dec. 16, 1952, No. 31834/52. Class 80 (2). [Also in Group XXXI] An auxiliary change-speed and reverse gear unit 10 can be inserted between the engine and the usual change-speed gear of a tractor or like vehicle, the auxiliary gear unit giving both step-up and step-down ratios. The auxiliary change-speed, &c., gear 10 comprises a driving shaft 12, a countershaft 14, a driven shaft 11, a sliding gear and clutch part 16, 25 and a sliding gear pair 17, 18. The gear-clutch part 16, 25 is slidden to the left of Fig. 3 to engage the clutch part 25 with a corresponding clutch part 24 on a driving gear 23 for direct drive, and to the right to obtain reverse through an idler (not shown) meshing a layshaft gear 20. The gear pair 17, 18 is slidden to the left for the step-up ratio, when the gear 18 meshes a gear 21, and to the right for the step-down ratio, when the gear 17 meshes a gear 22. The gear and clutch part 16, 25 is controlled by a lever 27 and the sliding gear pair 17, 18 by a lever 28, the two levers being formed with disc-shaped bases 271, 28<SP>1</SP> from which small segments have been removed. The bases 271, 281 and segments removed therefrom co-operate in such a way that each lever can only be rotated into the operative position when the other lever is in the neutral position. The levers are retained in their operative positions by spring-urged balls 29.
Patent GB-1213350-A (GB)
Title: Brushes for electrical apparatus and method for manufacture thereof
Inventor: FRIDMAN GEORGY NIKOLAEVICH
IPC: H01R39/22
Filed: 1968-07-04
Abstract: 1,213,350. Carbon black brushes. G. N. FRIDMAN, A. S. FIALKOV, Y. G. DAVIDOVICH, I. D. IVANOVA, L. P. SYSOEVA, A. Y. GLUSKIN, R. Z. GALISKAROV, E. L. LIBERMAN, and V. S. POMORTSEVA. 4 July, 1968, No. 31886/68. Heading ClA. [Also in Division F2] The invention comprises a carbon black brush containing a metal salt of a vegetable drying oil and an abrasive material additive. The brush may be manufactured by impregnating a brush blank with a silicone lacquer and heating to 600-1400‹ C. to form SiO 2  as the abrasive material and thereafter impregnating the brush blank with a metal salt of a vegetable drying oil, e.g. a metal linoleate, which is then polymerized at 120-180‹ C. The impregnations may be carried out at room temperature and atmospheric pressure. Prior to impregnation the brush blank may be dried at 110-120‹ C. for 1¢-2 hrs. and then cooled to 60-70‹ C.
Patent GB-1119257-A (GB)
Title: Telecommunication exchange
IPC: H04Q3/54
Filed: 1966-07-15
Abstract: 1,119,257. Automatic exchange systems. INTERNATIONAL STANDARD ELECTRIC CORP. 15 July, 1966 [21 July, 1965], No. 31898/66. Heading H4K. In a multistage remanent reed relay switching system, a preselected path through some or all of the stages is set up (and released) by means of a sequence of pulses which are applied to the cross-points via coincidence gates to which clock pulses are also supplied. Thus it may be necessary to connect a calling subscriber, e.g. Tln to a junctor Ue or to a register Reg or else to connect a junctor to a called subscriber or various other possible connections and each such connection is characterized by a different pulse sequence. These sequences are selected by applying a " long " pulse to one of bus-bars P1 to P3 and in addition supplying pulses sequentially to buses 1 to 5 from clock Tg. In order to set up a connection, one end of the path is marked, a relevant pulse sequence is selected and thereafter, the cross-points in each stage are sequentially operated when a marking and a clock pulse coincide. A suitable coincidence gate using a transistor and a plurality of diodes is depicted in Fig. 3 (not shown).
Patent GB-1393199-A (GB)
Title: Mounts for pictures photographs and the like
IPC: A47G1/06
Filed: 1973-07-04
Abstract: 1393199 Picture mounts J C B LETTS 4 July 1973 31923/73 Heading A4X [ Also in Division B6] A mount for a picture or photograph and suitable for use as a greeting card, comprises three panels 2, 3, 4 hinged together, the panel 2 having an aperture 7 in it and the panels 2, 3 having coatings 8, 9 of contact adhesive on marginal portions of them whereby they can be adhered together with a picture or photograph placed between them. The mount is formed from a single sheet of stiff paper or cardboard. Prior to the mounting of the picture or photograph the panel 4 is folded to lie between the panels 2, 3, e.g. to facilitate packaging, the contact adhesive being such as will only adhere to a similarly treated surface.
Patent GB-520911-A (GB)
Title: Improvement in round corners for use in cabinet work
IPC: F16B12/46
Filed: 1938-11-04
Abstract: 520,911. Furniture frames. CROUCH, R. H. Nov. 4, 1938, No. 31970. [Class 52 (ii)] [Also in Group XXIII] A rounded corner for use in cabinet work is made from two pieces of wood 2 having common outer laminations 3 and bent round a corner post 8, the edges of which are shaped to engage undercut grooves 7 having bevelled edges formed in the edges of the two sides of the corner. The post is substantially enclosed by the bevelled edges of the sides and the outer laminations C.
Patent GB-204961-A (GB)
Title: Adjustable broom-head fastener
IPC: B25G3/12
Filed: 1922-11-23
Abstract: 204,961. Temple, W. J., and Holder, E. T. Nov. 23, 1922. Detachable socketpieces with lug and flange attachments.-A device for securing a broom handle comprises a plate or flange a, perforated for attachment to the broom head c, provided with three lugs b perforated and bent up from its inner edge for fixing to the handle d. Fig. 1 shows the shape of the sheet metal blank from which the device is formed. The device may be adjusted by bending the lugs b inwards to suit handles of smaller diameters.
Patent GB-845525-A (GB)
Title: Improvements relating to radiator burners
IPC: F23C99/00
Filed: 1956-10-22
Abstract: 845,525. Gas radiator burners. HEIMERL, O. Oct. 22, 1956 [March 24, 1956], No. 32158/56. Class 75(1). In a radiator burner having a burner plate at which heat is produced by combustion of a gas-air mixture and wherein opposite sides of the burner plate communicate with the outer atmosphere through one or more airintake openings and one or more openings through which burnt gases are discharged, the heat from the burner being radiated through one of these openings, these openings through which changes in atmospheric pressure can reach the burner plate face in the same direction and/or are fitted with air throttling, eddy producing or suction producing means so as to equalize changes of pressure on opposite sides of the burner plate or to reduce these so as to have no effect on the burner. In the form shown, gas is supplied through a pipe 4 and nozzle 5 and mixes with air supplied through the pipe 6, the mixture passing through the plate 2 and burning on the surface thereof, most .gases escaping by a pipe 7. A reflector casing 10 is mounted in front of the face of the plate 2, its mouth being covered by a wire mesh screen 14. The pipe 6 opens into the side of the casing 10. The pipe 7 is provided with a concave end cap 15. In a modification, the pipe 6 opens towards the rear and is fitted with a concave end cap having internal ribs. The space in front of the plate 2 is closed by a plate of heat-resisting glass, plastic or mica transmitting infra-red rays. The whole assembly may also be covered by a dome of wire netting or expanded metal except for the opening of the reflector casing 10.
Patent GB-649812-A (GB)
Title: Improvements in electric lampholders of the bayonet type
IPC: H01R33/46
Filed: 1948-12-14
Abstract: 649,812. Lamp holders. CRABTREE & CO., Ltd., J. A., and MORGAN, R. W. Dec. 14, 1948, No. 32260. [Class 38 (i)] The body of a bayonet lampholder is made up of two parts a, b which loosely retain the plungers c and are adjustable towards each other for gripping circumferentially flexible cables passed to the plunger terminals. The plungers have compression springs e in recesses in the body parts which are held together by long screws h which engage in a plate i in the body part b. The screws are riveted over at h<SP>1</SP> to prevent them coming adrift and the springs e tend to separate the parts a, b so that on manipulating the screws extensions k on the body parts are opened to receive an electric lead and closed to grip it, the lead being introduced through the opening ml of the holder cap m.
Patent GB-506269-A (GB)
Title: Improvements in or relating to hydraulic press control circuits
IPC: B30B15/16
Filed: 1937-11-23
Abstract: 506,269. Hydraulic presses; fluidpressure servomotor - control systems. ERNST, W. Nov. 23, 1937, No. 32290. Convention date, March 3. [Classes 69 (ii) and 135] A hydraulic press control circuit includes a pump for delivering liquid for actuating the ram or platen of the press, an operating device for adjusting the delivery of said pump and having elements which are normally rigid with one another, and means responsive to the arrival of the ram or platen at a predetermined position in its forward or working stroke for moving said elements, of the operating moans one relatively to the other so as to vary the delivery from the pump. The pump 1 has a shift-ring 7 moved by a liquid-pressure servomotor 46, 47 under the control of a valve member 13 co-operating with a member 9 which moves with the shift-ring to give a follow-up action; the valve member 13 is moved by a handle 16 through a link 15 comprising a piston connected to the handle and situated in a cylinder connected to the member 13. Compressed air from a tank and/or compressor, or pressure liquid, is admitted to the cylinder by connection S1 through a throttle valve 82, whereby the link is normally maintained rigid to transmit the pull of the handle 16. The platen 5 carries a tappet 98 which, on engaging a roller 97 associated with an exhaust valve 85@ opens the latter so that the cylinder of link 15 empties, the rate of exhaust being greater than the rate of supply through the valve 82. The valve - member 13 then moves to the right to reduce the pump delivery under the influence of a spring 108, to an extent determined by the lost-motion in the link 15. On further movement of the platen, the exhaust valve closes, and after a time interval determined by the setting of the valve 82, pressure is restored in the link 15, and the valve 13 is moved back to its original setting. The pump is connected by lines 54, 55 to the ram cylinder; the prevailing suction line communicates with the reservoir 37 through a differential valve 60; any abnormal pressure rise in the advance line 54 acts through line 57 on an auxiliary piston 43 to reduce the pump delivery ; this effects automatic zeroizing of the pump at the end of the advance stroke; similarly, automatic zeroizing of the pump at the end of the return stroke is effected by pressure in the return line 55 acting through line 56 or an auxiliary piston 52. In a modification, Fig. 4, the collapsable link comprises a solenoid 116, a tappet 95 on the platen actuating a switch 122 to deenergize the solenoid ; re-energization of the solenoid is delayed by a dashpot 128. Alternatively, the dashpot may be associated with the electric link.
Patent GB-994977-A (GB)
Title: Improvements in or relating to photographic cameras
Inventor: GIESECKE HEINRICH
IPC: G03B17/17
Filed: 1961-09-11
Abstract: 994,977. Photolithographic camera; optical apparatus. C. P. GOERZ AMERICAN OPTICAL CO. Sept. 11,1961, No. 32558/61. Headings G2A and G2J. A projection unit for forming a laterally reversed image of an object, e.g. in a photolithographic camera, comprises a housing formed by a pair of half shells which mate along a central vertical plane and are releasably held in contact as by bolts or screws 5 passing through lugs 6, 7, 8, 9 to form an upper chamber 2 having a vertical front opening 11 and enclosing a roof prism 12, a lower chamber 3 having a vertical rear opening 22 and enclosing a mirror 19, and a tubular neck 4 connecting the chambers and containing an interchangeable objective 18 which is clamped in position by the assembly of the half shells, the roof prism having a vertical inlet surface 13 toward the front opening 11, asymmetrical roof surface 14 having the roof edge in the central vertical plane and inclined at an angle of 30 degrees to 40 degrees to the inlet surface and an exit face 15 adjacent the objective. As shown, for the purpose of producing slight overlap of lines in the lithograph picture, especially to produce agreement between colour separation records taken through different colour filters, the roof prism is supported by a cardan suspension comprising an inner ring 29 holding the prism, an outer concentric ring 31, a first axle 32 pivotally connecting the rings and a second axle 33 pivotally connecting the outer ring to the housing and at right angles to the first axle, and a part 36 fixed to the prism has a recess engaged by an eccentric cam 35 on a rotatable shaft 34 inclined to both axles so as to impart a rocking movement to the prism during exposure. A shutter 42 is pivotally mounted in the housing and is movable to cover the exit face of the objective by means of a solenoid 44 having a movable core 45 connected to the shutter and the objective is provided with an iris diaphragm 37 controlled by a pin 38 adjusted by a micrometer screw. The mirror 19 is carried by a support 23 pivoted at 24 and adjusted in position by a screw 25. The roof prism is preferably made of glass of refractive index of at least 1. 60 and the lenses and the prism are made of glasses having about the same dispersion coefficient.
Patent GB-1323154-A (GB)
Title: Colour television display arrangement
IPC: H01J29/56
Filed: 1970-07-06
Abstract: 1323154 Electron beam magnetic deflecting apparatus PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 6 July 1970 [9 July 1969] 32716/70 Heading H1D [Also in Division H4] In a colour television tube isotropic astigmatism is corrected by providing four toroidal correction coils 20-23, Fig. 3, which are arranged to produce a quadrupole field and which are fed with currents proportional to the squares of the deflection currents. As shown in Fig. 3 the coils 20-23 may be wound in the gaps between the deflection coils 25 and 26 on a common core ; coils 20 and 23 are wound in the opposite sense to coils 21 and 22 so that when the coils are energized in series a quadruple field is produced (Fig. 4, not shown). As an alternative the coils 20-23 may be located on the neck of the tube underneath the deflection coils. When the tube uses three electron guns in delta formation the usual dynamic convergence unit is provided, and the correction coils are fed with currents of the form ax<SP>2</SP>-by<SP>2</SP>; adjustable currents proportional to Œx or Œy may be added to correct for asymmetry between the coil halves or for gun alignment errors (Fig. 11, not shown). When the tube uses three co-planar beams, or if the tube is of the single beam index type, the coils are supplied with currents of the form ax<SP>2</SP> + by<SP>2</SP>, and a separate convergence unit is not necessary.
Patent GB-1049883-A (GB)
Title: Multi-apertured memory arrangement
IPC: G11C11/06
Filed: 1963-08-19
Abstract: 1,049,883. Magnetic storage device. T.R.W. Inc. Aug. 19, 1963 [Aug. 21, 1962], No. 32723/63. Heading H3B. A screen memory arrangement comprises horizontal and vertical members 12, 13, coated with remanent magnetic material 20, readwrite conductors such as 14 and information conductors such as 17, so woven into the screen as to define double loop cells such as 18. In the arrangement of Fig. 1, a " write " pulse 27 applied from a source 16 to the conductor 14, will develop magnetic flux components in the same sense around both loops of, say, cell 18; but an information pulse applied to conductor 17 from a source 25, via a switch 24, will develop magnetic flux components in opposite senses around the two loops of that cell. Thus, only one or the other of the loops will be switched to the opposite state. A " read " pulse 28, of sense opposite to that of signal 27, when applied to the conductor 14, will restore to its initial state the loop previously switched and, since similar flux changes in the two loops affect conductor 17 oppositely, that conductor, now connected via switch 24 to a detector 22, will carry an output signal the polarity of which is determined by the loop which was switched. Thus, binary " 0 " and " 1 " states are indicated by output signals of opposite polarity. In the arrangement of Fig. 3, the conductors are so threaded that a pulse, whether " information " or " write," generates flux in opposite senses around the two loops of the cell. Thus, neither loop is switched or both are switched by simultaneous " write " and " information pulses; and when a " read " signal is applied, binary " 0 " and binary " 1 " are indicated by the absence or presence of a pulse. Since, in this arrangement, the opposite sense of the flux generated in the two loops of a cell by a pulse involves mutual augmentation of flux in the common leg of the loops, it follows that when the sense of the common leg flux is the same for simultaneous " write " and " information " pulses, it is only necessary that the sum of the flux in both loops be sufficient to switch the common leg, to indicate a stored " 1 "; and the individual flux contribution of the two loops may vary.
Patent GB-1190124-A (GB)
Title: Improvements in Plain Bearing Assemblies
Inventor: CROSS ROLAND CLAUDE
IPC: F16C33/06
Filed: 1968-07-10
Abstract: 1,190,124. Bearings. CROSS MFG. CO. (1938) Ltd. 20 Nov., 1968 [10 July, 1968], No. 32842/68. Heading F2A. A plain bearing assembly has an inner and outer member having concentric cylindrical bearing surfaces, at least one of the members being of non-ferrous alloy, and a steel bush (3) positioned between the bearing surfaces. The non-ferrous alloy is preferably an aluminium alloy. The steel bush may be a complete annulus, or may be split longitudinally (4), or may be formed of a helically wound strip. As described, the bearing is that between a gudgeon-pin 1 and a portion 2 of a connecting rod, and the invention may also be used in a big end bearing assembly.
Patent GB-1010758-A (GB)
Title: Electrical capacitor
IPC: H01G4/22
Filed: 1964-08-12
Abstract: 1,010,758. Capacitors. GENERAL ELECTRIC CO. Aug. 12, 1964 [Aug. 13, 1963], No. 32888/64. Drawings to Specification. Heading H1M. An electrical capacitor comprises a pair of electrodes separated by a dielectric of a polyphenylene ether; of the kind described in Specification 930,993; the electrodes comprising e.g. aluminium foils convolutely wound with separating films of the dielectric, or convolutely wound dielectric films carrying metallized electrode layers with alternate edges unmetallized; the exposed edges at opposite ends of the roll being connected to terminals by e.g. schooping or soldering. The dielectric may be applied as coatings to the electrode foils or to a mica dielectric, to impregnate e.g. kraft paper, glass cloth, or asbestos cloth, or may be filled with powdered silica or alumina. The capacitors may be impregnated with e.g. mineral, castor, or silicone oils, or polymerized butane and sealed in a container thereof; or may be impregnated and coated with a hardenable plastic dielectric material. The mode of preparation of the polyphenylene ether dielectric is described in detail. Specification 737,443 and U.S.A. Specification 2,995,688 also are referred to.
Patent GB-830404-A (GB)
Title: Improvements in rubbing-down machines
IPC: B42C13/00
Filed: 1955-11-17
Abstract: 830,404. Bookbinding. HEADLEY BROS. Ltd., and PITT, H. C. Nov. 19, 1956 [Nov. 17, 1955], No. 32897/55. Class 16 A machine for rubbing down the backs of books comprises a series of parallel rollers 3 mounted to rotate freely within a roller rack or frame 4, means for moving the rollers into contact with the backs of the books, means 2 for clamping the books at a position in contact with the rollers, means for reciprocating the roller rack or frame 4 and means for causing pressure to be applied on the backs by the rollers in the reciprocation of the rack or frame 4. The frame 4 is mounted for reciprocal movement on grooved eccentrically mounted rollers 5 mounted on transverse shafts 6 one of which has a control lever 7 for rotating the rollers 5 to move the frame upwardly in the reciprocation of the frame 4. A link 8 is pivoted to a lug 8a on the frame 4 and to an upright rocking arm 9 mounted at its lower end on transverse frame members 10 of the machine frame 1. A link 11, pivoted to arm 9 at an intermediate position, is eccentrically mounted on a disc 12 on a shaft 13 driven by chain 15 round sprocket wheels 14, 16 on shaft 13 and a shaft 17 mounted in a bracket 17a, the shaft 17 being driven from motor 20 through pulley 18 and belt 19, the motor 20 being pivotally mounted in the frame 1 so as to tension the belt 19. A cone clutch 40 incorporated in the shaft 17 is operated by a control rod 21 pivoted at 38 to a machine frame part 39 and engaging at its other end a cam groove 37 mounted on the shaft 6 so that rotation of shaft 6 to move frame 4 upwardly causes engagement of the clutch parts. The clamping frame 2, which is hinged to the main frame 1, carries a fixed clamp, adjustably mounted, and a clamp 23 normally spring pressed apart from the fixed clamp but movable to clamp the books by a lever 32 acting through cams and rollers.