baber/WOPTO huggingface dataset:
Patent GB-1418391-A (GB)
Title: Process for the separation and purification of platinum group metals and gold
IPC: C01G55/00
Filed: 1973-01-02
Abstract: 1418391 Separation of platinum; palladium and gold NATIONAL INSTITUTE FOR METALLURGY 2 Jan 1973 [18 Jan 1972] 165/73 Heading C1A Aqueous feed solutions containing complexes of at least two of the metals platinum, palladium and gold are treated to separate the individual metal values by contacting the aqueous solutions with a solvent which contains tertiary amine or quaternary amine groups whereby the complex anions are transferred to the solvent phase and then stripping the complex anions in at least two successive steps in each of which different anionic complexes are primarily stripped from the solvent. Specified solvents are (C 8-10 H 17-21 ) 3 N and its methylation product and these may contain as dilutents paraffin containing 2% isodecanol, an aromatic hydrocarbon or methyl isobutyl ketone. Stripping may be effected (1) first with a dilute perchloric acid or sodium perchlorate solution to remove primarily Pt, secondly with a concentrated perchloric acid or sodium perchlorate solution to remove primarily Pd and thirdly with with a sodium carbonate solution to remove primarily Au or (2) firstly with a thiourea solution to remove primarily Au and Pd and then with a perchloric acid solution to remove primarily Pt; the thiourea strip may be treated to convert thiourea complexes to chloro complexes which are re-extracted with an amine solvent which is first given a perchloric acid strip to remove Pd and then given a sodium carbonate strip to remove Au or (3) firstly with a thiocyanate solution to remove primarily Pt and then with a thiourea solution to remove primarily Pd and Au. The feed solution may be pre-treated with an ion-exchange resin which absorbs the precious metals and gold whilst leaving the base metals in the solution. The metals may be recovered from this resin by elution with a thiourea solution and the thiourea complexes so obtained converted to the chloro complexes prior to being treated by the process of the invernion. Palladium may be removed from the strip solution by sparging with ethylene, platinium by sparging with hydrogen and gold by treating with oxalic acid.
Patent GB-800113-A (GB)
Title: Adjustable throw-guiding device for use on rotary snow-ploughs
IPC: E01H5/04
Filed: 1957-01-02
Abstract: 800,113. Snow ploughs. SCHILLER, P. Jan. 2, 1957 [Jan. 7, 1956], No. 169/57. Class 107 The throwing mechanism of a snow plough has a common hand wheel and selected gearing so that it changes the position either of the impeller ejector or of the throw guiding plates. The impeller casing 1 is movable about its axis by a worm on a shaft 37 and the collector funners is rotatable about its tion the throw guiding plates 5 are adjustable about the axis by a shaft 31. In addiaxis 13. The shafts 31 and 37 (see Fig. 5) enter a gear box and are provided with bevel gears 30<SP>1</SP>, 45<SP>1</SP> each having an internal clutch member 40, 40<SP>1</SP> urged towards the centre of the box by springs 41. A cam 42 on a spindle 44 can be turned by handle 45 to disengage the clutch 40 (as shown) or clutch 40<SP>1</SP>, for alternative actuation of shaft 37 or shaft 31. The actuating spindle 44 runs in the hollow shaft 28 of the drive bevel (not shown) which is in constant engagement with the other two bevels and the hand wheel 27 is thus selectively engaged with one or the other adjustment. An extension 6 can be fitted to the funnel 3 for loading the snow into a lorry.
Patent GB-327682-A (GB)
Title: A valve for relaying air currents in correspondence with variations of sounds
IPC: H04R1/42
Filed: 1929-01-03
Abstract: 327,682. Holden, W., and Nachimson, G. M. Jan. 3, 1929. Magnetic instruments.-A pneumatic relay for sound reproduction comprises superposed grids moving about a fulcrum or fulcra arranged so that the fluid pressure on the grids is balanced, the grids being so mounted that, when in operation, they move in angular relationship to each other. The relay may be applied to a gramophone sound-box, or may be electrically operated, for example, by a moving armature. The relay shown in Fig. 1 comprises two grids AB. CD one of which is pivoted at its lower edge F to the air chamber G, while the other is pivoted to the first at E and connected to a fulcrum at O comprising an adjustable, slightly flexible bar H. An adjustable member K abuts against a spring L on the inner grid to maintain the grids in position, the position which the grids take up, when moved by a stylus-bar M or other operating device, being shown exaggerated in dotted lines. The air inlet and filter are indicated at P. The modified relay shown in Fig. 2 comprises three grids AB, CD, C2D2 flexibly connected at their upper and lower edges. The stylus-bar &c. M passes between the grids CD, C2D2 and is secured to AB, and an adjustable fulcrum O is provided for each of the grids CD, C2D2. Further slightly modified arrangements are also described.
Patent GB-944101-A (GB)
Title: Ships' conveyor apparatus
Inventor: POPE PETER EDWARD
IPC: B63B27/22
Filed: 1959-01-02
Abstract: 944,101. Ships' endless conveyers. J. COLLIS & SONS Ltd. Jan. 1, 1960 [Jan. 2, 1959], No. 239/59. Headings B8A and B8E. A conveyer unit for use in loading and unloading a ship on which it is installed comprises spaced reversible endless conveyers 4, 6, Fig. 3, pivotally connected to a central conveyer 5 so that their outer ends may be raised and lowered. The three conveyers are connected to an athwartships extending carriage including a gantry 7 carrying raising and lowering gear operating on ropes 8 attached to the conveyers 4, 6. The unit is movable athwartships from a central position to positions in which the outer end of conveyer 4 or 6 extends beyond the side of the ship's hull. The conveyer 5 is associated with a conveyer 10 extending to a lower deck and with a lift 11 extending to the upper decks. The conveyers 4, 6 may alternatively be raised and lowered by fluid pressure motors mounted on the carriage. In the embodiment shown in Fig. 6, the central conveyer 5 is omitted and conveyers 13, 14 are connected to the carriage 15 by sliding pivots 16. The conveyer 10 is replaced by a pair of conveyers 12.
Patent GB-465673-A (GB)
Title: Improvements relating to wringers and shelves for attachment to tables
IPC: D06F45/00
Filed: 1936-01-04
Abstract: 465,673. Wringers. TIMPANY, J. C. Jan. 4, 1936, No. 342. [Class 138 (ii)] A wringer 8 is permanently or detachably secured to a base board 1 which is removably secured to a table 2 by bolts 3 and wing nuts 4. A frame 14 is pivoted at 13a to the base board and hangs down over the edge of the table, and a shelf 16 is pivoted to the lower end of the frame by a knee joint 15 whereby the shelf is positioned horizontally to support a tub 17 or other vessel. When the wringer is not in use the frame and shelf may be folded over or against the wringer.
Patent GB-620100-A (GB)
Title: Improvements relating to circular saw machines
IPC: B27B5/16
Filed: 1947-01-04
Abstract: 620,100. Sawing. TODD & SON, Ltd., H., and TODD, J. S. Jan. 4, 1947, No. 346. [Class 145(ii)] A circular saw machine in which the saw is carried by a pivoted casting B that can be raised and lowered with respect to a table A for cross-cutting is provided with an additional table K for ripping which may constitute an attachment to the machine or be a permanent portion thereof and is above the cross-cutting table A, the table K being carried by two angle brackets L spaced the same distance apart as the width of the pivoted casting B, and said brackets having inclined slots L<SP>1</SP> fitting over projecting ends of the saw casting pivot bolt E and being formed with downward extensions L<SP>2</SP> to bear against adjacent portions of the machine frame D thus-together with nuts E<SP>1</SP> on the pivot bolt-serving to retain the table K in fixed position. The angle through which the casting B is turned is adjustable by means of the screw B<SP>5</SP>, while the motor H is carried on an extension B<SP>3</SP> of said casting. An adjustable fence M is provided on the table K.
Patent GB-268065-A (GB)
Title: Improvements in or relating to weft supplying devices in looms for weaving
IPC: D03J5/00
Filed: 1926-01-06
Abstract: 268,065. Mouradian, M. Jan. 6, 1926. Shuttles.-Two weft threads are laid in the shed at each pick by using a shuttle having two cops, bobbins or pirns arranged on one spindle, or two separate spindles, b', b<2>, which, as shown, may be arranged to face one another, separate guide eyes c<1>, c<2> at opposite sides of the shuttle being used. In a modification, the spindles have their hinged ends lying side by side and engaging a hinge pin common to both, the eyes being arranged at the ends of the shuttle. According to the Provisional Specification, two weft threads may be wound on one cop, the cop spindle being rotated as the weft is drawn off, a guide for the two threads being provided. Reference has been directed by the Comptroller to Specifications 3926/78, 1415/79, 3107/90, 12355/92, 20814/96, and 15001/05, [all in Class 142, Weaving &c.].
Patent GB-592193-A (GB)
Title: Improvements in or relating to the control of an internal combustion engine-electricpower plant as used for the propulsion of a vehicle
IPC: H02P9/04
Filed: 1945-01-05
Abstract: 592,193. Control of several D.C. motors. SULZER FRERES SOC. ANON. Jan. 5, 1945, No. 483. Convention date, Jan. 8, 1944. [Class 38 (iii)] [Also in Group XXXV] In an internal-combustion engine-electric power plant for vehicle propulsion of the kind in which substantially constant engine loading is maintained by an automatic governor-controlled servo motor influencing the generator voltage and, at higher vehicle speeds, by a second servo motor controlling the field strength of the driving motors, hunting of the control system when motor field control is in operation is prevented by maintaining the voltage control of the generator and arranging such an overlap between the two controls that after the switching in of any step of field weakening, with resultant overloading of the engine, this step cannot immediately be switched out again, but the necessary reduction of engine power output is effected by reduction of generating voltage. As shown in Fig. 1, an engine 1 controlled by a governor 6, 7 drives a Ward-Leonard generator, 2, 3 supplying traction motors 4, the series fields b of which may be shunted by resistors 30, 31 under the control of a hydraulic servomotor 18. The generator voltage is controlled by a field regulator 17 actuated by a servomotor 12 controlled by the governor through linkage 8-11. With the piston 14 of servomotor 12 in the position shown, the valve 19 of servomotor 18 is pressed downwardly in a sleeve 22 by spring 21 to uncover port 24, thereby maintaining piston 20 raised and preventing insertion of the motor field shunts 30, 31. With increasing vehicle speed, piston 12 rises to reduce field resistance 17, the rod 15 of this piston eventually lifting valve 19 to admit pressure fluid to the upper face of piston 20 which then starts to descend and switches in the first step of motor field resistors 30. If this causes overloading of the engine, the resultant speed reduction causes piston 12 to descend to lower the generator voltage. The amount of overlap of the valve 19 on the ports 23, 24 of the sleeve and the graduation of resistors 17, 30 are such that the overload relief brought about when piston 12 descends through a distance equal to the overlap is at least as great as the overloading caused by the switching in of one step of motor field resistance. The sleeve 22, which is controlled by the generator voltage through a solenoid 27, prevents the insertion of motor field resistance under conditions of low generator volts by moving the valve 19 clear of the rod 15. Instead of the solenoid-operated sleeve, a voltage-operated contactor may maintain the field weakening circuit open under conditions of low generator volts. The voltage at 'which the solenoid or contactor permits field weakening to commence may be made dependent upon engine speed by including in the coil circuit a resistance which varies with the governor setting. The resistance steps on the resistors 30 may be staggered to provide finer control.
Patent GB-998833-A (GB)
Title: Improved process for the preparation of 2-halothiobenzamides
Inventor: KOK HANS ROBERT
Filed: 1962-01-05
Abstract: An improvement in the process for the preparation of a 2-halothiobenzamide of the general formula. <FORM:0998833/C2/1> and/or the tautomeric isothiobenzamide, wherein X represents a halogen atom, Z represents a halogen atom, a hydrocarbyl or a hydrocarbylthio group, and x=1, 2, 3 or 4, by reacting the corresponding halobenzonitrile with hydrogen sulphide according to the parent Specification, which comprises allowing the solid reaction product to precipitate from the reaction mixture without contacting the latter with water, followed by separating the precipitate from the mother liquor.  The reaction mixture is cooled to a temperature below 30 DEG  C. preferably between - 10 DEG  and + 20 DEG  C., and the precipitation of the product is induced by seeding the reaction mixture, the precipitate being separated from the mother liquor by decantation, filtration and centrifugation. Part of the mother liquor is recycled after having been replenished with fresh starting material and, if desired, one or more other components of the original reaction mixture.  In an example 2.6-dichlorobenzonitrile was added to a mixture of diethylamine and methanol and the resulting suspension heated and gaseous hydrogen sulphide passed through, the resulting solution was cooled to 20 DEG  C., seeded with a few crystals of 2.6-dichlorothiobenzamide and the major part of the product precipitated and filtered off.  To the filtrate, which is to be recycled, diethylamine and methanol were added, as well as fresh starting material, and the resulting mixture was treated in a next batch in the same way as described above.  The mother liquor obtained from the second batch was replenished and recycled in an analogous manner.
Patent GB-430927-A (GB)
Title: Improvements in, and relating to, picture rails, and other rails used for like purposes
IPC: A47H1/10
Filed: 1934-01-06
Abstract: 430,927. Picture rails. HINDE, S. H., Lonsdale House, Lichfield Road, Walsall, and PHAYRE, H., 13, Stumper Lowe Avenue, Fullwood, Sheffield. Jan. 6, 1934, No. 520. [Class 52 (iv)] A picture rail A is secured to a plate B by means of a clip G, or an equivalent separate securing device, and the plate is secured by a screw D to a spacing block E fastened to the wall. Vertical adjustment is preferably provided by slotting the plate B in the way of the screw D.
Patent GB-156677-A (GB)
Title: Brakes for steering wheels
IPC: B60T11/04
Filed: 1921-01-06
Abstract: 156,677. Landry, J. E. June 3, 1919, [Convention date]. Brakes, arrangement of.-Brakes for the steering wheels are fitted thereto without modifying the construction of the wheels by welding a dished disc 20 to the stub axle 14. The disc is fitted with an expanding band 26 which is operated by a cable-actuated cam. The brake drum 29 is attached to the spores by means of bolts 38 and staples 39. The outer periphery of the disc is in a plane with the inner end of the stub axle, and a hole 20<1> is provided for removal of the pivot pin 12. The band is attached to a bracket on the disc by an axially arranged spring pin to effect an even clearance between the band and drum when the brake is inoperative.
Patent GB-991179-A (GB)
Title: Friction welding apparatus
IPC: B23K20/12
Filed: 1962-01-09
Abstract: 991,179. Clutch-brake combination. AMERICAN MACHINE & FOUNDRY CO. Jan. 9, 1962 [Jan. 10, 1961], No. 797/62. Headings F2C, F2E and F2L. [Also in Division B3] Friction welding apparatus includes an electromagnetically-operated clutch/brake unit. For welding a pipe to a tool joint the apparatus comprises a frame 28 from which extends a tubular frame 29, the former carrying a petrol or diesel motor 34 driving a shaft 38 coupled to the shaft 39 of the clutch and brake unit 40 fixed to the frame 29. A thrust bearing unit 45 and arbor support bearing 46 are provided in front of the unit 40, the bearing 46 being fixed to the frame 29. The shaft 39 journallled in one end of the unit 40 has alternate clutch discs 54 slidably fixed thereon by a member 56. An output shaft 57 journalled in the other end of the unit carries a member 58 having fingers 48 engaging alternate clutch discs not fixed to member 56 and an electromagnetic coil 55 is provided to draw member 56 to engage the clutch discs. Alternate brake discs of sets 59, 60 are fixed to stationary members 61, 62 and fingers 66, 67 on the member 58 and on a further member 65 carried on the shaft 57 engage the alternate discs not engaged by members 61, 62, Electromagnetic coils 68, 69 are provided to cause the brake discs to engage. Oil is provided in the unit for lubricating and cooling. Splines on the output shaft 57 engage the inside of a tubular arbor shaft slidable within a tube rotatably journalled in the support 46. Hydraulic cylinders 91 fixed to the support 46 draw the unit 45 towards the support 46 to move the arbor shaft forwards. A pipe chuck unit 101 is slidable on the frame 29. Hydraulic cylinders 90 fixed to the support 46 pull the unit 101 toward the support 46. In operation, a tool joint is mounted on the arbor shaft and a pipe is mounted on the support 101. With the motor 34 running the welding cycle is started by pressing a switch button which causes the brake discs to be engaged and causes fluid to be supplied to cylinders 91 to slowly advance the arbor shaft and joint forwardly and a cam follower for actuating a switch 155 rides on a cam 159 so that the follower rides from a raised portion to a low portion to activate the switch 155 to close a circuit for energizing the clutch discs and disconnecting the brake to cause the shaft 39 to rotate the arbor shaft and thus the joint. The rotating joint is advanced into contact with the pipe to generate heat. On pressing the switch button to start the welding cycle a clutch of a timer motor is activated and after a predetermined time when the ends of the joint and pipe have become plastic contacts are closed and the brake discs are caused to rapidly stop the arbor shaft, the clutch discs being opened. The cylinders 90 then draw the parts together to complete a weld. Specification 991,180 is referred to.
Patent GB-156754-A (GB)
Title: Improvements in and connected with the pre-heating of blast furnace and like gases in dry gas-purifying plants
IPC: F28F27/00
Filed: 1921-01-07
Abstract: 156,754. Dingler'sche Maschinenfabrik Akt.-Ges. Jan. 17, 1914, [Convention date]. Drawings to Specification. Filtering.-In order to preheat the gas in connection with a dry purifying-plant, a portion of the raw gas or of the cleansed gas is burnt, and the heat thus produced is utilized for preheating, regulation being effected by controlling the quantity of gas burnt and/or by controlling an addition of air or inert gas to the gases of combustion. Preferably two independent heating chambers are employed, one for preheating the raw gas and the other for preheating the gas used for cleansing the filter of the purifier. A suitable heating chamber is described.
Patent GB-208033-A (GB)
Title: Improved prepayment mechanism for gas-meters and the like
IPC: G07F15/00
Filed: 1923-01-10
Abstract: 208,033. McIntyre, J., and Milne & Son, Ltd., J. Jan. 10, 1923. Addition to 205,596. Gas, supplying by meter; coin action, mechanicalconnection. - In prepayment mechanism for gas meters as described in the parent Specification, the coin-holder comprises three radially -slotted discs 1, 2, 3, Figs. 3 and 4, bolted together and mounted on the tube B containing the spring 6 with their radial slots in alignment to receive a coin inserted through a slot D, Fig. 5. The large toothed wheel C adapted to engage the externally toothed nut L is attached to the disc 1. The e coin-holder is rotated by a single projection W working in a slot X in the disc 2 and operated bv the handle G. When the coin strikes the start of the stationary cam J carried by the price-change disc P, a cam V also carried by the handle moves the wheel C into mesh with the nut and lifts the coin over the cam J, the projection W during this operation moving to the end of the slot X so that further rotation of the handle rotates the nut L until the coin is discharged. A small keep-plate H, Fig. 5, a the start of the cam J engages a slot in the disc 3 and prevents the wheel B from being moved laterally into mesh with the nut until the coin reaches the cam J when the keep-plate H can pass through a notch Y. The nut L is locked against rotation until the wheel C is meshed therewith by a sliding plate K having a tooth engaging the teeth of the nut and a turned-over edge engaging a groove 4 on the wheel C. For locking the apparatus when the maximium number of coins has been inserted, the snugs M, 0 on the screw N and on the wheel C respectively, instead of interlocking, are arranged so that the snug M blocks the snug O, when the wheel C is moved out of mesh with the nut after the discLarge of the last coin. Coin-slit closing-devices.-The disc 2 comes into contact with a flap F pivoted beneath the coin slot D to close this except when the coin bolder is in position to receive a coin. Price-changing mechanism.-The price-change disc P is secured by a toothed plate Q engaging the teeth on its edge, the plate Q being kept in locking position by a spring U surrounding a rod R carried by it.