baber/WOPTO huggingface dataset:
Patent GB-670975-A (GB)
Title: Process for the recovery of precious metal values
IPC: C01G5/00
Filed: 1949-02-25
Abstract: Alkaline cyanide solutions of precious metals, e.g. a sodium cyanide solution containing sodium aurocyanide of pH 8-11, are contacted with a resinous polyamine ion exchanger, e.g. Duolite A-3, in the free base condition, and the exchanger with adsorbed precious metals is then removed from the solution.  The metals are desorbed by treatment of the exchanger with an alkaline solution of pH 13-14, leaving the exchanger ready for reuse.  Suitable alkaline materials are sodium hydroxide, ammonia, or if gold alone is to be extracted, a sodium sulphide solution may be used.  The process is applicable to the clarified or partly clarified solutions, or pulps, obtained by the cyanadization of gold and/or silver ores.  The recovered solution is treated with powdered aluminium, or zinc dust with an activator or solvent such as sodium cyanide, to precipitate the metals.  In one method of procedure the desorbed exchanger is contacted with the previously treated pulp for further adsorption of dissolved values. After removal from the pulp it is then used for the treatment of fresh untreated pulp.  In another method the gold and/or silver ore is treated with water, lime, and potassium or sodium cyanide, and the pulp is treated in a number of successive operations with exchanger. The exchanger from each operation is extracted with an alkali solution which has already been used for desorbing the exchanger from a later adsorption operation.  Amine-formaldehyde resins, e.g. Duolite A-3, are specified.  Specification 594,339 is referred to.ALSO:Alkaline cyanide solutions of precious metals, e.g. a sodium cyanide solution containing sodium aurocyanide of pH 8-11, are contacted with a resinous polyamine ion exchanger, e.g. Duolite A-3, in the free base condition, and the exchanger with adsorbed precious metals is then removed from the solution.  The metals are desorbed by treatment of the exchanger with an alkaline solution of pH 13-14, leaving the exchanger ready for reuse.  Suitable alkaline materials are sodium hydroxide, ammonia, or if gold alone is to be extracted a sodium sulphide solution may be used. The process is applicable to the clarified or partly clarified solutions, or pulps, obtained by the cyanadization of gold and/or silver ores.  The recovered solution is treated with powdered aluminium, or zinc dust with an activator or solvent such sodium cyanade, to precipitate the metals.  In one method of procedure, the desorbed exchanger is contacted with the previously treated pulp for further adsorption of dissolved values. After removal from the pulp, it is then used for the treatment of fresh untreated pulp.  In another method, the gold and/or silver ore is treated with water, lime, and potassium or sodium cyanide, and the pulp is treated in a number of successive operations with exchanger. The exchanger from each operation is extracted with an alkali solution which has already been used for desorbing the exchanger from a later adsorption operation.  Specification 594 339 is referred to.
Patent GB-608319-A (GB)
Title: Overedge sewing machine
IPC: D05B29/06
Filed: 1946-02-19
Abstract: 608.319. Sewing - machines. FAIRWEATHER. W. C. (Singer Manufacturing Co.). Feb. 19, 1946, No. 5233. [Class 112] Folding devices; machines with workbenders. Means for folding the marginal portion of a piece of fabric into S form, trimming the edge in line with the lower fold, and securing the edge to the fold by a blind-stitch over-edge seam include a horizontally-floating guide member for the fold to accommodate any thickening of the work such as a cross-seam, while yieldingly holding it against the folder. For use with tubular articles the folder is pivoted at some distance from the edge of the work and below the level of the folding blade so that any lifting due to thickening of the work moves the fold further into the plane of the needle to ensure that the needle penetrates the fold; another form of folder, for flat work, is pivoted nearer to the line of seam and adapted to be swung upwards for the insertion of the work. In the arrangement shown in Fig. 1, in a machine having a pressure-bar 5, curved needle 2, and trimming blades 8, 12, the work w is folded, as shown dotted, by a folder 44 fixed to a member which is pivoted at 40 between side pieces of a saddle 38 adjustably mounted on the workpedestal 1a of the machine as described below; in the alternative form the folder is pivoted to the front of the saddle. In either form the working position of the folder is determined by an adjustable stop screw, and in the form shown upward movement is limited by a screw 51 engaging an enlarged hole in the saddle. The saddle 38 is fixed to a block 17a upstanding from a carrier 17 (see also Fig. 5) which is adjustable lengthwise of a supporting arm 14 on the work-pedestal 1a, and carries a fixed work-guide comprising a rounded edge 32a of a member 32 and the underside of the head of a bolt 35 fixed in the member 32. Also mounted on the carrier 17 is a guideplate 25, Fig. 5, for holding the fold against the folding-finger 46 of the folder under the pressure of an adjustable spring 28, this guide-plate being capable of sliding and swinging in a horizontal plane to accommodate a cross-seam, as shown, or other thick part of the work; the guide-plate is provided with pins 26, 27 engaging slots in the carrier 17 to guide and limit its sliding and with arms 25 engaging the sides of the carrier block 17a to limit its swinging about either of the pins.
Patent GB-400190-A (GB)
Title: Improvements in or relating to cartons or containers of paper or the like
IPC: B65D3/20
Filed: 1932-01-14
Abstract: 400,190. Cartons &c. WARE, H. M., Seletar, Dene Road, Northwood, Middlesex. Jan. 14, 1932, No. 5295/33. Divided on 400,179. [Classes 66, 94 (i), and 94 (ii).] Tn a paper, wood pulp, &c. carton &c, of the kind with a wedgeshaped body initially closed at the base, e.g. by a flanged disc, and left open at the apex to permit of filling, at least one of the contiguous edges of the body at the filling end is enclosed within a fold when the closure at that end is completed. The contiguous edges may be doubled over, Fig. 1, or a A-shaped metal strip 4 having legs of equal length, Fig. 3, or of unequal length, Fig. 5, may be applied over the collapsed end and then folded over along with the material of the carton. According to the Provisional Specification, the tubular body of the carton is folded from a sheet of material so that the edges overlap, a reinforcing element is placed in the body, and the whole is bound together and proofed by waxing. The contiguous edges at the end may be united by heat and/or pressure and may be doubled over one upon the other, and the metallic strip &c. may be heated before or after it is applied.
Patent GB-450655-A (GB)
Title: Improvements in or relating to pulley blocks
IPC: B66D3/26
Filed: 1936-02-24
Abstract: 450,655. Pulley-hoists. ODDIE, W. M., Inwood, Benton Hill, Horbury, near Wakefield. Feb. 24, 1936, No. 5441. [Class 78 (v)] Plain tubular fairleads 4 are provided for each of the depending stretches 5 of the lifting-chain, or the hand operating- chain, or both. The upper ends of the fairleads are secured to arms 2 of the side frame 1 by clamping plates 3. The fairleads may be rigid metal tubes with flared ends, or may be made of a closely coiled spring or helically coiled wire.
Patent GB-1090463-A (GB)
Title: Indicating apparatus for use in pneumatic gauging circuits
IPC: G01B13/02
Filed: 1965-02-08
Abstract: 1,090,463. Indicating apparatus for pneumatic gauging. SHEFFIELD CORPORATION. Feb. 8, 1965 [Feb. 14, 1964], No. 5450/65. Heading G1M. An indicating apparatus for use in pneumatic gauging circuits comprises indicating module 20 means and an inlet for air under pressure and an outlet 47a for connection to a gauging tool wherein the flow of the air is controlled in accordance with a characteristic of a product being measured, said module comprising a longitudinal unit adapted for vertical mounting, a transparent indicating tube 21a or b mounted along the forward face of said unit and having an indicating float 22a or b positioned along said tube in accordance with the upward flow therethrough, first passage means 40 being provided in said unit for connecting the air inlet to the lower end of the tube and further passage means being provided between the upper end of the tube and the said outlet characterized in that the device comprises an air supply passage 36a extending transversely through said unit, opening at its opposite ends in the opposed side faces thereof for mating relationship at each end with adjoining components of the apparatus. In the embodiment illustrated in Fig. 1 two units are shown although any number may be used depending on the number of measurements being taken by the gauging tool. The side faces of the units are adapted to engage with either the side faces of other units or the side face of a support or foot unit. The first passage means includes passages 37a and 38a Fig. 8 (not shown) which communicate through a manifold block 40 to a regulator 41 which is connected by passage 43a to the indicating tube. Due to the width of the regulators, it is necessary to mount them in alternate raised and lowered positions, Fig. 4 (not shown) and the manifold block 40 serves as an adapter which may be rotated through 180‹ to bring the passages to and from the regulator in proper co-operating relationship with the passages in the rear of each unit and with the regulator in either the raised or lowered position. Each foot unit 55, 56 includes passage means 72 only one of which is normally connected to an under pressure air supply source, the other one being closed by a plug; however if a large number of indicating units are used it may be necessary to have air supplied through both units. The transverse portion of tube 72 terminates at 73 in the side face of the foot unit for connection with the supply passage 36.
Patent GB-1383761-A (GB)
Title: Inhalation device for use with an aerosol container
IPC: A61M15/00
Filed: 1971-02-25
Abstract: 1383761 Aerosol inhaler D C WOODCRAFT (Armstrong - Kropp Development  Corp) 25 Feb 1972 [25 Feb 1971] 5450/71 Heading AST [Also in Division F1] An inhaler 21 is for use with an aerosol container 43. which discharges a metered amount of medicament when its nozzle 49 is pressed, which is arranged to occur when suction is applied to the inhaler 21, and comprises a chamber 38, a mouthpiece 32 communicating with the chamber 38, a spring- biased lever 63 for actuating the aerosol, a linking lever 62 which acts as a latch to maintain the actuating lever 63 in a cocked position, and a movable wall 61 which, in the cooked position, covers air admission ports 41 and which, when suction is applied to the mouthpiece 32, moves away from the ports 41 to unlatch the linking lever 62, as in Fig. 1 (not shown). The wall 61 is pivoted at 65. Linking lever 62 is pivoted at 67 and has a rounded portion 73 which contacts the side of spring 64, thereby biasing the upper end of lever 62 against the wall 61. The other end of lever 62 forms the latdh 72 which cooperates with a notch 83 in the actuating lever 63. The actuating lever 63 is pivoted at 76 and also includes a strap 74, which passes through a slot 84 in the bottom of the chamber 38 and is used to reset the actuating lever 63. The strap 74 has a portion 75 which covers the mouthpiece 32 when the inhaler is not in use. The aerosol container 43 is mounted in a second chamber 37 having a pivoted cover 54. In a second embodiment, Figs. 6-13 (not shown), a separate spring (107) biases the linking lever 62 against the wall 61. A single round aperture (101) forms the air admission port, which is overlaid by a button (102) on the face of the wall 61, to enable the inhaler to be triggered manually. An additional air admission port (121), normally overlaid by a foam pad (122) mounted on the lever 63, is provided. A sliding cover (125) includes a wedge (129) movable relative thereto to press against the top of the aerosol container 43.
Patent GB-828583-A (GB)
Title: Improvements connected with radial flow turbines
Inventor: LJUNGBERG KLAS WILHELM
IPC: F01D25/32
Filed: 1958-02-19
Abstract: 828,583. Steam turbines. SVENSKA TURBIN AKTIEBOLAGET LJUNGSTROM. Feb. 19, 1958, No. 5470/58. Class 110 (3). An exhaust diffuser 4 surrounding the outermost blade system 3<1> of a radial flow turbine, contains circumferentially spaced, substantially radial walls 6 transversing the space between the walls of the diffuser, a series of axiallyextending, moisture receiving flutes 9 being arranged in front of the walls 6. The walls 6 together with upper and lower walls 7, 8, form moisture receiving chambers 5 which are drained through openings 12 to a collecting tube 13. Annular shields 14, 17 presenting a concave face to the steam flow and covered by wire netting 15, 18, provide additional moisturecollecting means. The shields are drained and supported by means of tubes 16, 16<1> and 19.
Patent GB-695350-A (GB)
Title: Improvements in and relating to electrical communication systems
IPC: H04B7/165
Filed: 1952-03-03
Abstract: 695,350. Multiplex radio signalling; frequency modulation. PHILCO CORPORATION. March 3, 1952 [March 30, 1951], No. 5506/52. Class 40 (v). In a communication system employing a carrier wave frequency-modulated by a composite signal comprising a frequency-modulated sub-carrier and an amplitude-modulated component extending over a frequency-range different from that of the sub-carrier, spurious phase modulation of the latter in a superheterodyne receiver by the amplitude modulated signal, due to the phase/frequency characteristic of the receiver I.F. amplifier not being linear, is counteracted by causing the local oscillator to track the incoming signal for frequencies within the signal (audio) modulation band of the sub-carrier. As shown applied to a television system with a carrier frequency modulated by a video signal and a frequencymodulated sub-carrier for sound, the output of a receiver frequency discriminator 24 is passed through a low-pass amplifier 26, passing up to 30 kc/s., to frequency-modulate approximately in step the local oscillator 21, and the therefore suppressed low-frequency video components are reintroduced into the output signal from the amplifier 26 in a combiner circuit 28, preferably with a delay, produced by a network 30, equal to that produced by the I.F. amplifier 22.
Patent GB-1096734-A (GB)
Title: Improvements in semiconductor arrangements
IPC: H01L31/00
Filed: 1965-02-09
Abstract: A controlled P-N recombination-radiation source is caused to emit radiation upon the simultaneous application of (a) a controlling radiation and (b) an electric signal; the controlling radiation may be supplied by a further P-N recombination-radiation junction, and the emitted radiation may be detected in a photo-conductor; the whole may be assembled to provide an "AND" solid-state opto-electronic circuit element.  In an embodiment, the controlled source is a gallium or aluminium phosphide P-N junction, doped with oxygen and zinc; the controlling radiation is of wavelength 9, 100 <\>rA from a doped gallium arsenide or indium or aluminium phosphide body, and the emitted radiation is of wavelength 7000 <\>rA.  The effect of the controlling radiation may be to saturate an intermediate level and thus prevent radiative recombination; alternatively, the controlled source may be doped with iron or cobalt, and will not emit radiation until the radiationless recombination centres thus introduced are saturated by the controlling radiation, i.e. the sources will have a super-linear emission above a threshold.  The photo-conductor may also comprise a P-N junction, e.g. of gallium phosphide doped with zinc and oxygen.  Direct activation of the photo-conductor by the controlling source may be prevented either by making the energy quanta of the controlling radiation smaller than the quanta required to activate the photo-conductor, or by incorporating reflective layers between the various sources. The controlling source may be made by alloying a tin contact at 400-700 DEG  C. for less than one second, producing a recrystallized N-type region in a P-type gallium phosphide body, and simultaneously forming an ohmic contact of gold containing 4 weight per cent zinc, or by diffusing zinc at 900 DEG C. into N-type gallium arsenide, using tin and indium-zinc contacts. The controlled source may be formed by diffusing zinc at 800 DEG  C. into an N-type gallium phosphide. Either source may be a laser.
Patent GB-898242-A (GB)
Title: Improved manufacture of refrigerator cabinets
IPC: F25D23/06
Filed: 1961-02-15
Abstract: In making a refrigerator as described in the parent Specification, the moulds are lined with an elastomeric material before applying the congealable resin, the linings being stripped from the cabinet after removal of the moulds.  The elastomeric material, which may be applied in sheet or spray form, may be polyethylene, polypropylene, fluorinated polyethylene, fluorinated ethylene/propylene copolymer, or wax blooming rubber.
Patent GB-1126612-A (GB)
Title: Process for the manufacturing of nuclear fuel elements
Inventor: MUSTACCHI CARLO
IPC: G21C3/20
Filed: 1965-02-09
Abstract: 1,126,612. Nuclear fuel elements. EUROPEAN ATOMIC ENERGY COMMUNITY (EURATOM). 2 Feb., 1966 [9 Feb., 1965], No. 5629/65. Heading G6C. In making a nuclear fuel element comprising a nuclear fuel carbide surrounded by cladding, the carbide is oxidized by a gaseous or liquid agent after insertion into the cladding so that the fuel forms an oxide coating and swells to eliminate clearance between the cladding and the fuel. Oxidation may be effected using dry or wet warm air or carbon dioxide, or xenon containing a small amount of air, and may take place before or during use of the fuel element in a reactor. The cladding may be sintered alumina or stainless steel, and the element may be used in a reactor cooled by an organic liquid and moderated with heavy water.
Patent GB-922505-A (GB)
Title: Production of foundry moulding shapes
Inventor: NEWTON HENRY SWIFT
IPC: B22D7/10
Filed: 1961-02-16
Abstract: 922,505. Mould and core materials. DISTILLERS CO. Ltd. Jan. 22, 1962 [Feb. 16, 1961], No. 5721/61. Class 83 (1). Feeder heads, sleeves and the like are made from a mixture of exothermic material particulate vermiculite and a silicate, shaped and hardened by CO 2 .
Patent GB-716902-A (GB)
Title: Improvements in or relating to slit mechanism for monochromator
Inventor: GEORGE KENYON PALMER
IPC: G01J3/04
Filed: 1952-03-05
Abstract: 716,902. Optical apparatus. BECKMAN INSTRUMENTS, Inc. March 5,1952, No. 5747/52. Class 97(1) A variable slit mechanism, particularly for a monochromator includes slit-defining jaw means resiliently interconnected and pivotally mounted for effective movement in a single plane to vary the width of the said slit, and pivotally supported actuating means engaging the said jaw means and movable along a direction perpendicular to the said arc plane for moving the said jaw means. As shown in Fig. 2 the slit system comprises a flexible plate 85 for example of beryllium copper slotted as shown to provide jaw plates 86. 87 defining slit edges 90. 91 and connected by resilient bars 88, 89 carrying wings 93, 94 for securing the plate in position on a mounting plate 11. The jaw plates 86, 87 are connected at their upper and lower edges to resilient members 77, 78. Fig. 3, mounted on the plate 11, so that the jaws may pivot slightly towards and away from each other to vary the width of the slits formed between the edges 90, 91 and a central member 103 mounted on the plate 11. This movement of the jaws is effected by movement of the bars 88, 89 in a direction perpendicular to the plane of the plate. This movement is effected by push rods, one of which, 118, is shown in the plan view of Fig. 3. The rods engage in sockets 117 on upper and lower arms 57 of a bell crank 45 supported for pivoting by spring plates 62. The other arms 54 of the bell crank are connected by a vertical bridge 55 (not shown) having bearing seats 44 engaging the ball ends of push rods 39 similarly engaging a shaft 24 screwed into and out of a collar 22 by an operating knob 18. Rotation of the knob therefore causes rotation of the bell crank 45 which, by means of the push rods, moves the bars 88, 89 to cause the plates 36, 87 to move with the resilient members 77, 78 towards or away from each other. In a modification the member 103 is replaced by a member dividing the slit horizontally into two.
Patent GB-1446315-A (GB)
Title: Trench shoring machines
IPC: E21D9/00
Filed: 1973-02-09
Abstract: 1446315 Trench shoring machines; pile driving A N THOMPSON 9 May 1974 [9 Feb 1973] 5796/73 Headings E1E and E1H In a trench shoring machine comprising a series of longitudinally extending vertically spaced piles 30 arranged along each side of a framework, guide means are provided for guiding the piles for horizontal sliding movement longitudinally of the framework, drive means are provided for longitudinally advancing the piles with the framework held stationary, holding means are utilized to retain the piles in their advanced positions and means are provided for advancing the framework relative to the piles. The machine comprises a forward framework including walings 1, 2, 3, 4 and a rearward framework including walings 5, 6, 7, 8; the walings 1, 3 being interconnected by tie rods 9 and the walings 2, 4 joined by tie rods 11. The walings of the rearward framework are likewise joined by tie-rods 13, 15; the tie-rods being welded to the walings which are also interconnected as by struts 16, 18, 20. Each strut comprises a box-section guide 24 in which two bars 25, 26 are slidably positioned and adapted to be extended and retracted by a ram 27. The horizontally-extensible piles 30 are fitted between guides 29 on each side of the machine; the lowermost piles each has a rearward and downward taper 34 at their front ends, see Fig. 2 (not shown), and all other piles have a forwardly and outwardly tapered nose piece 33 secured thereto. One advancing ram 35 or 36 is provided for each pile whilst additional rams 44, 45 are provided to advance the framework 1-4 relative to the framework 5-8. Walings 1, 2, 5, 6, 7 and 8 are also each provided with a levelling foot 52 adjusted by a ram 53. A locking system 55, 56 is provided for locking the respective one of the walings 1, 2 to the piles at the appropriate side of the machine. The rearward framework carries a hopper 68 and the space below the hopper accommodates the pipe 28 to be laid. For modus operandi, details of locking system, hydraulic control and minor constructional details the Specification and remaining drawings (not shown), should be referred to.
Patent GB-1045993-A (GB)
Title: Embrittlement-resistant iron-aluminum-yttrium alloys
IPC: C22C38/18
Filed: 1965-02-10
Abstract: An alloy steel resistant to oxidation by superheated steam has the following percentage composition:- .Al.0.5-12 .Y.0.1-3 .Fe.the remainder The alloy may also contain less than 20% Cr