baber/WOPTO huggingface dataset:
Patent GB-954435-A (GB)
Title: Anion exchange resins for the recovery of gold and silver from gold and silver bearing aqueous cyanide liquors
Inventor: WELLS RONALD ALFRED
IPC: C08F8/44
Filed: 1960-08-25
Abstract: Gold and silver may be recovered from aqueous cyanide liquor by contacting the liquor with a strong base/weak base anion-exchange resin comprising a copolymer of styrene with 1 to 5% divinyl benzene having quarternary amino (strong base) and tertiary amino(weak base) groups present to the extent of one strong or weak exchange group per styrene residue, the strong base groups being -CH2-N+R1R2R3 and the weak base groups being -CH2-NRR0, wherein R1, R2, R3, R and R0 are alkyl groups of at least 4 carbon atoms, and the proportion of strong base groups being 20 to 60% of the total exchange groups.  The gold and silver subsequently may be eluted from the resin with (i) a solution of thiourea and hydrochloric acid in methanol and water, (ii) a solution of thiourea, potassium thiocyanate and hydrochloric acid in methanol and water, or (iii) a solution of ammonium thiocyanate in aqueous methanol. The examples give details of the capacities, absorption capabilities and elution characteristics of specified resins. Specifications 947,631 and 947,632 are referred to.ALSO:Strong base/weak base anion-exchange resins useful for the recovery of gold and silver from aqueous cyanide liquors, comprise copolymers of styrene with 1 to 5% divinyl benzene having quaternary amino (strong base) and tertiary amino (weak base) groups present to the extent or one strong or weak exchange group per styrene residue, the strong base groups being -CH2-N+R1R2R3 and the weak base groups being -CH2-NRR0, wherein R1, R2, R3, R and R0 are alkyl groups of at least 4 carbon atoms, and the proportion of strong base groups being 20 to 60% of the total exchange groups.  The resins can be prepared by reacting a fully halomethylated stryene/divinyl benzene copolymer with a tertiary alkylamine (e.g. tributyl amine) until from 20 to 60% of the halogen has been replaced, and then treating with a di-alkylamine (e.g. dibutylamine) to replace the unreacted halogen. The gold and silver subsequently may be eluted from the resins with (i) a solution of thiourea and hydrochloric acid in methanol and water, (ii) a solution of thiourea, potassium thiocyanate and hydrochloric acid in methanol and water, or (iii) a solution of ammonium thiocyanate in aqueous methanol. The examples give details of the capacities, absorption capabilities and elution characteristics of specified resins. Specifications 947,631 and 947,632 are referred to.
Patent GB-802821-A (GB)
Title: Improvements in or relating to coil and transformer assemblies
Inventor: HUMPHREYS JOHN RODERICK
IPC: H03H7/01
Filed: 1955-10-17
Abstract: 802,821. Transformers. PYE, Ltd. Oct. 17, 1956 [Oct. 17, 1955], No. 29540/55. Class 38 (2). An I.F. transformer comprises two windings on a former supported between two end plates which are held together by stout wires, the ends of these wires being deformed to secure the parts. As shown in Fig. 1, helically-wound coils 1a, 1b are mounted on an insulating former 2 in two parts which connect with an intermediate part 4 provided with a ferrite slug 5. The former is held between end plates 3, and six wires 6 extend between the end plates, two wires being surrounded by insulating space tubes 7. The remaining wires 6 are connected to the coils and their lower ends act as soldering terminals. Ferromagnetic tuning slugs 9 are movably mounted on threaded rods in the end plates. The assembly is mounted on rubber washers in a metal screening can. In Fig. 4 the former comprises two ferrite rods 22 carrying wave-wound windings 21 and mounted on either side of a plate 23. In this embodiment the spacing members comprise ferrite tubes mounted either side of the plate 23, and these serve as a magnetic screen for the windings. The can may be filled with tropical wax and capacitors may be associated with the transformer.
Patent GB-444911-A (GB)
Title: Improvements relating to means for attaching legs to a bath or the like receptacle
IPC: A47K3/16
Filed: 1934-10-16
Abstract: 444,911. Attaching feet to baths &c. DAWKLNS, W. A., Rosemary, Lansdowne Avenue, Codsall, Wolverhampton. Oct. 16, 1934, No. 29543. [Class 66] [See also Group I] A leg 4 is pivotally or movably connected with a bath &c. so that the top edge of the leg is pressed into contact with the wall of the bath and the leg is prevented from splaying outwardly beyond the supporting position. The leg, which comprises a casting of curved cross-section with a bulbous foot, has a lug 5 carrying a hook 6 passed about a member 3 connecting lugs 2 attached to the bath, the member 3 having a flat face 7 if desired.
Patent GB-727694-A (GB)
Title: New or improved loading fork for lifting and conveying stacks of articles by means of tines which are inserted into gaps provided in the lowermost layer of the stack
IPC: B66F9/18
Filed: 1952-11-24
Abstract: 727,694. Gripper forks for lifting stacked articles. MIAG FAHRZEUGBAU GES. Nov. 24, 1952 [Nov. 23, 1951], No. 29584/52. Class 78(4). A fork for handling stacks of articles has hydraulic grippers 1 secured to the tines 2 and connected to a pressure generator 6, 7 through which the fork is supported and which is subjected to the weight of the fork and the load supported thereon. The generator comprises a cylinder 7 and a piston 6 urged apart by a spring 8 and secured respectively to the suspension means 10 and the fork by means of a pair of U-shaped members 9, 5 which co-operate with each other and guide the piston for axial movement in the cylinder. The member 5 is adapted to slide along the horizontal fork supporting arm 41, but is provided with grippers 52 which automatically lock the member to the arm as soon as the loaded fork is raised. A reservoir 16 is connected to the system through a valve 15 which is adapted to close when a predeter. mined pressure is generated in the system. In a modification (not shown), the reservoir and valve are incorporated in the interior of the piston 6. To limit the force exerted by the grippers 1 a spring-loaded thrustor 31, 32 is connected to the system and is arranged to close a valve 20, so isolating the grippers, when a predetermined pressure is reached. The push rod 35 of this thrustor is adjustable in length and an adjustable cylinder end 34 is provided to provide the desired stress in the spring 33.
Patent GB-470603-A (GB)
Title: Improvements in yarn separators for ring doubling and ring spinning machines to prevent lashed, fuzzy or fish yarn
IPC: A24B5/08
Filed: 1936-10-31
Abstract: 470,603. Separators for ring spinning &c. machines. MEADOWCROFT, E., and GRIFFITHS. F. Oct. 31, 1936, No. 29606. [Class 120 (ii)] A separator for ring spinning and doubling machines comprises sheet metal, or, if greater strength is required, cast metal, shaped as shown and provided with a hole D and slot C to accommodate a bolt for securing it to the ring rail, and a gap G to permit the use of a fly or waste catcher.
Patent GB-894950-A (GB)
Title: Voltage measuring apparatus
IPC: G01R19/18
Filed: 1960-08-26
Abstract: 894,950. Potentiometric voltage-measuring circuits. FOXBORO CO. Aug. 26.1960 [Sept. 15, 1959], No. 29613/60. Class 37. In an automatically-balanced D.C. voltagemeasuring system the unknown voltage at 10, 12 is compared with an adjustable balance voltage derived from a circuit including a variable differential capacitor C1, C2, the contact 18 of a switch 16 ganged with switches 20, 22 and operated by a vibrator V alternately connecting a capacitor 28 with the unknown and balance voltages fed to contacts 14, 26, respectively, any difference in these voltages causing an A.C. signal through capacitor 28, amplifier A and a motor M which moves the rotor 36 of capacitor C1, C2 to balance the system, the variable capacitor setting then being a measure of the unknown voltage. A recorder R is included in the feed-back circuit. The variable capacitor comprises two fixed plates and one movable one (rotor 36) and the capacitance C1, C2 vary inversely with respect to movement of the rotor. The settings of potentiometers 46, 42 forming part of the balance voltage circuit can be used as a " zero " and " span " adjustment devices, respectively, for the recorder. Specification 655,359 is referred to.
Patent GB-1463700-A (GB)
Title: Subbing of polyester film material
IPC: C08J7/056
Filed: 1974-07-04
Abstract: 1463700 Photographic subbing layers CIBAGEIGY AG 18 June 1975 [4 July 1974] 29664/74 Heading G2C [Also in Division B2]  A photographic material comprises a film of biaxially oriented linear polyester (particularly polyethylene terephthalate) which may be treated, e.g. with a solution of a phenolic compound or by corona discharge, to improve the adhesion of a coating layer thereto, a first coating of a copolymer of vinylidene chloride, an alkyl acrylate or methacrylate, at least one copolymerizable acid, and a vinyl component of general Formula:- where T is -CN or -OCOCH 3  and P is -CN, -COCH 3  or -COC 6 H 5  where the phenyl group may be further substituted by e.g. halogen, nitro, alkyl or alkoxy groups, and a further coating of (a) a gelatine based layer over which may be coated a gelatine silver halide emulsion, or (b) a polyvinyl alcohol or polyvinyl metal layer which may have a lightsensitive diazonium salt incorporated therein or coated thereon.
Patent GB-784661-A (GB)
Title: Process for the production of austenitic springs for watches, and like apparatus, and springs obtained by this process
IPC: C22F1/10
Filed: 1955-10-18
Abstract: 784,661. Making springs. INSTITUT DR. ING, RHEINHARD STRAUMANN AKT.- GES. Oct. 18, 1955 [Oct. 18, 1954], No. 29687/55. Classes 83 (2) and 83 (4). Altering physical properties.-A process for the production of austenitic springs for watches and like apparatus is characterized in that a band of an austenitic cubic face-centred material, e.g. chromium-nickel or chromium-cobalt alloy steels having a rectangular cross-section, is homogenized and subsequently rolled to a broad metal band, until a degree of 80 per cent deformation has been reached and a definite predominance of direction 111 in the direction transverse to the direction of rolling has been achieved, the spring strips being cut out from the rolled metal strip in a direction transverse to the direction of rolling, so that the direction 111 lies parallel to their longitudinal axis and are then subjected to a heat treatment at temperatures ranging from 200‹ C. to 600‹ C. Specification 733,510, [Group II], is referred to.
Patent GB-734036-A (GB)
Title: Automatic unloading device for pulverulent or pulverised materials
IPC: B65G53/18
Filed: 1952-11-24
Abstract: 734,036. Unloading material from vehicles by fluidization. SCHEMM, H. R. Nov. 24, 1952 [Dec. 11, 1951], No. 29698/52. Classes 78 (1) and 78 (4). A system of air-activated gravity conveyers 11 is arranged on removable supports 8, 9 in a wheeled vehicle or ship for unloading if. The end slides form at least two groups 7a, 7b arranged symmetrically on either side. of, and inclined towards, a similar central collecting air conveyer 5, by which the material is discharged. In the railway wagon illustrated in Figs. 1 and 2 the central conveyer 5 is carried by a trough 12 mounted in trunnions 6 in a passage 4 so that it may be inclined to deliver to either side of the vehicle. Roof-shaped members separate the conveyers 11 and inclined walls 9a, 9b are provided adjacent the walls of the vehicle. The central conveyer 5 delivers to a funnel and hose connection (not shown) fitted adjacent the sliding door 3 in use and delivering to a further air-activated gravity conveyer, to an elevator, or to a pneumatic conveyer or elevator. The conveyers comprise porous supporte 11, preferably, of woven canvas, arranged over metal troughs 12 provided with air inlets which are connected by pipes to a central distributer (not shown). Air is supplied to the distributer by a blower at the unloading station and independently operable valves permit the conveyers to be operated selectively Fig. 13. shows two groups of conveyers 7a, 7b in, the forward half of the hold of a barge and delivering to central coveyers 23a, 23b which in turn deliver to a central pit 24 in the barge. A similar pair of groups of air conveyers at the rear of the hold are similarly arranged, to deliver to the pit 24.
Patent GB-967448-A (GB)
Title: A method of making a frame of thermosetting plastic material
IPC: B29C39/00
Filed: 1960-08-30
Abstract: 967,448. Moulding fibre-resin window frames. GRAMES. Aug. 30, 1960 [Aug. 31, 1959], No. 29813/60. Drawings to Specifications. Heading B5A. [Also in Division E1] A method of moulding a reinforced plastics frame in which a thermosetting resin, e.g. cresol, which may have 1% of methyl-ethylketone peroxide, and allyl phthalate and cobalt naphthenate added, is preheated to a temperature below its polymerization temperature before being placed in the mould. The reinforcement comprises continuous hanks of glass filaments, or fabric formed from glass filaments, and may be either coated with resin before being introduced into the mould, or placed directly into the mould, in which case the resin is heated again in the mould to a temperature at which it has a temporarily very low viscosity.
Patent GB-468998-A (GB)
Title: Improvements in and relating to electrical cooking apparatus
IPC: F24C15/18
Filed: 1936-11-02
Abstract: 468,998. Electric cooking apparatus. WALTERSPEIL, A. Nov. 2, 1936, No. 29819. [Class 39 (iii)] The top plate of the casing A is provided with a plurality of openings beneath which are provided recesses for receiving cooking- vessels d<1>, d<2>, the recesses being formed by heating elements c which also serve to warm the large space g underneath the elements. The heating elements are supported on carriers e attached to the top plate and part of them may be cut out when desired. A louvred casing h arranged in the space g and provided with heating elements i serves as a warming chamber. A water heater may be arranged in the space g. An additional aperture may be provided in the top plate for a corrugated grill plate r, Fig. 5, heated by elements mounted in a carrier u fixed to the top plate. A cooking- apparatus as described in Specification 440,088 may be mounted on an extension forming a cupboard. The cooking vessels are formed with curved peripheral flanges f resting on convex flanges b<1> around the apertures.
Patent GB-659488-A (GB)
Title: Sewing machine driving mechanism
IPC: D05B69/12
Filed: 1949-11-23
Abstract: 659,488. Motor driving arrangements. SINGER MANUFACTURING CO. Nov. 23, 1949, No. 29966. Convention date, Dec. 3, 1948. [Class 35] [Also in Groups VII and XXIV] A sewing-machine is driven through a clutch comprising a driving element 9, a driven element 12, and a brake 10, the driven element being movable into engagement with either of the other members and being held normally in a neutral position, free from either of these members, by yielding means. In the arrangement shown, the brake 10 is carried by a fixed mounting, the driving element 9 is integral with the rotor 7 of a three-phase electric motor, and the driven element 12 is mounted for axial movement in bearings in a hub 13 of the casing. This axial movement is effected by angular movement, about the axis of the clutch, of a U-shaped lever 17 connected by a pull-rod 19 to a centrally-pivoted treadle and having screwthread engagement with the casing hub, and the lever 17 is engaged above and below by spring- pressed plungers such as 29 which hold it in its neutral position; the plungers are carried by an adjustable bracket 20.
Patent GB-1347373-A (GB)
Title: Organic phosphorus compounds process for their manufacture and their use in combating pests
IPC: C07F9/40
Filed: 1971-06-25
Abstract: 1347373 Pesticidal phosphorus-containing oxazolo-pyridine derivatives AGRIPAT SA 25 June 1971 [26 June 1970] 29994/71 Heading C2P The invention comprises compounds of the Formula I: where R 1  is halogen, hydrogen or nitro, R 2  is hydrogen, methyl, chloromethyl or bromomethyl, R 3  is C 1-6  alkyl, alkoxy, alkenyloxy, alkynyloxy, alkoxyalkoxy, haloalkoxy, monoalkylamino or dialkylamino, or is phenyl or amino, R 4  is C 1-6  alkyl, alkenyl, alkynyl, alkoxyalkyl or haloalkyl, and X and Y are oxygen or sulphur. The compounds of Formula I may be prepared by reacting a compound of Formula III: where A is halomethyl, vinyl, 1,2-dichloroethyl or 1,2-dibromoethyl with an acid of the formula or with a salt thereof. The compounds of Formula I have insecticidal, acaricidal and anthelmintic properties and may be used as the active ingredients in conventional pesticidal compositions.
Patent GB-1263989-A (GB)
Title: Brake system
IPC: B60T8/1761
Filed: 1969-06-13
Abstract: 1,263,989. Antiskid braking systems. NORTH AMERICAN ROCKWELL CORP. 13 June, 1969 [26 Aug., 1968], No. 30016/69. Heading F2F. A vehicle antiskid system has a mechanism for comparing the rotational velocity of one or more wheels of one wheel set with the rotational velocity of one or more wheels of another set and generating a control signal when a difference in velocity is detected, the control signal actuating a valve for reducing the braking effort applied to the brakes associated with the slower wheels. In the embodiment shown, compressed air from a compressor 26 passes via a check valve 30, accumulator 32 and brake valve 34 to brake mechanisms 18, 20 on front wheels 10, 12, via conduit 38, check valve 40 and branch conduits 42, 44 and to brake mechanisms 22, 24 on rear wheels 14, 16 via conduit 46, either the high or low pressure lines 50, 51 associated with a pressure reducing valve 49 according to the position of a control valve 48, and conduits 52, 54, 56. The sinusoidal outputs from electromagnetic pick-up transducers 58a-58d, on wheels 10-16 are converted by monostable multivibrators 62, 64, 66, 68 to pulses, the frequencies of which area direct function of the individual wheel speeds. The pulsed outputs from vibrators 62, 64 are fed to a comparator 70, and from vibrators 66, 68 to a comparator 72, the output signal from comparator 70 being a function of the faster or the average velocity of the front wheels, and the output signal from comparator 72 being a function of the slower or average velocity of the rear wheels, the difference between the signals triggering a switch 74 to energize an amplifier 87, the output of which energizes a solenoid 90 through relays 114, 116 which thus shifts valve 48 from its normal position, connecting conduits 46, 52 via high pressure line 50, to connect these conduits via the low pressure line 51 to reduce the braking effort to the rear wheels. Pressure reducing valve 49 comprises a body 100, Fig. 2, in which a piston 106 slides, a piston-rod 107 having an extension 110 maintaining a switch 112 closed in its normal position. Lines 50, 51 are respectively connected to chambers 104, 102 of the valve and on operation of the brakes seal 113 of piston-rod 107 closes a vent passage on moving upwardly and permits switch 112 to close. If the operator actuates the emergency brakes a pressure switch 118, Fig. 1, opens to break the circuit through solenoid 90 and relay 116 to permit valve 48 to resume its normal position. If when solenoid 90 is energized the front wheel pressure decreases, the rear wheel pressure also decreases until the main system drops sufficiently to cause switch 112 to reopen de-energizing solenoid 90 and restoring valve 48 to its normal position. A modified pressure reducing valve and circuit is described.
Patent GB-486397-A (GB)
Title: Improvements in or relating to liquid filters
IPC: B01D29/46
Filed: 1937-11-02
Abstract: 486,397. Filters. SOC. ANON. SAVARA. Nov. 2, 1937, No. 30022. Convention date, May 14. [Class 46] A filter for liquids comprises coaxial elements consisting of annular blades arranged alternately with perforated discs having annular rim portions, the discs being movable relatively to the blades, and the inner diameter of the annuli of one set of elements being substantially equal to the outer diameter of the annuli of the alternate set, so that the filtering slots are determined each by opposed linear edges of two consecutive elements. In the construction shown, the filter comprises discs 5 and spacers 7 threaded alternately on a bolt 3, with annular cleaning blades 8 encircling the spacers 7. The blades have lugs 12 formed with notches 13 in which rods 14 are engaged, the rods passing through holes in a ring 15. The ring is applied to a lid 2 against which the stack of elements 5, 7, 8 is pressed by means of a ring 16 secured to the bolt 3. At the top the bolt is provided with means whereby it may be rotated. The inner diameter of the discs 5 is substantially equal to the outer diameter of the blades 8. The apparatus shown is for use when the flow of liquid through the filter is from the exterior to the interior. In the case where the liquid flows in the reverse direction, the outer diameter of the discs is substantially equal to the inner diameter of the blades. The lugs 12 of the blades in this case face inwardly.
Patent GB-484571-A (GB)
Title: Improvements in or relating to composition for cleaning metal
IPC: C23G1/02
Filed: 1936-11-04
Abstract: Compositions for cleaning metal prior to painting, enamelling, or the like contain a rust-removing agent, a solvent of oil or grease, and a wetting agent containing a sodium salt of the acid sulphates of multiple carbon saturated branched chain secondary alcohols of the formula <FORM:0484571/III/1> in which R and R1 are aliphatic hydrocarbon radicals and R + R1 have a total content of 6-17 C. atoms.  A suitable composition is 15-70 vol. of 75 per cent ortho-phosphoric acid, 15-30 vol. of mono-butyl ether of ethylene glycol, 1/8 -2,0 vol. of a 25 per cent solution in water of the sodium salts having 14 or 17 carbon atoms in the molecule and water; for use this is diluted with water to the strength desired. Molasses or other sugary material may be added to raise the viscosity.  Up to 80 per cent of the above butyl ether may be replaced by methyl-ethyl ketone or similar solvent of grease, and all or part may be replaced by the mono-ethyl or other ether of ethylene glycol or by an acetate of ethylene glycol.
Patent GB-882700-A (GB)
Title: Arrangement for the coaxial clamping of a sleeve over a shaft
IPC: F16D17/00
Filed: 1958-09-19
Abstract: 882,700. Securing sleeves on shafts. SCHACHENMANN, C. and GRUNBAUM, H., [trading as SCHACHENMANN & CO., CONRAD]. Sept. 19, 1958 [Sept. 20, 1957], No. 30098/58. Class 80 (2). [Also in Group XXII] A self-tightening and self-centring coupling for connecting a cardboard sleeve H to a shaft 5, to form the core of a winding in a coil-winding machine, comprises two or more eccentric 1, 2 keyed to the shaft 5, with their throws uniformly spaced, and each carries a freely rotatable eccentric ring 9, 10 which rings are rotatably interconnected by pins 12, 13 engaging recesses in a ring 8, whereby rotation of which rings 9, 10 relative to the shaft moves the rings simultaneously outwards to clamp the sleeve to the shaft. Spring rings 14 prevent axial movement of the eccentric rings 9, 10.
Patent GB-998747-A (GB)
Title: Stopper for closing containers, such as bottles, flasks and the like
IPC: B65D41/48
Filed: 1963-07-30
Abstract: 998,747. Stoppers. H. LOHRER. July 30, 1963 [May 9, 1963], No. 30154/63. Heading B8T. An elastic stopper (Fig. 1) has a central tapered plug portion 11 and an outer skirt 1 of which the lower portion 3 may be torn off. The entire upper surface 12 may be curved and generated by a parabola or circular arc.