baber/WOPTO huggingface dataset:
Patent GB-166409-A (GB)
Title: Improvements relating to the electrolytic separation of metals
IPC: C25C7/06
Filed: 1920-05-19
Abstract: 166,409. Langer, C. May 19, 1920. Metals, deposit ing; electrodes; con nections ; electro lytes, agitating. - Currents of differen pressures are em ployed in the simul taneous separation o two or more metals dissolved from ar anode. The electro lyte may be caused to flow through one or more pervious cathodes C' to a non-pervious cathode C<2> by means of a pump L. Generators G<1>, G<2> have their negative terminals connected to the cathodes C<1>, C<2> and their positive terminals to the single anode A. In the separation of copper and nickel, the generator G<1> may give a potential of 0.5 volt and the generator G<2> 1.5-2 volts. The ratio of the distances of the cathodes from the anode should be at least as great as the ratio of electric pressures. The initial electrolyte may contain 400 grm. of nickel sulphate per litre, with a little sulphuric acid. The cathode C<1> for the reception of the copper may consist of a leaden frame, two perforated leaden plates burned on to its sides, and fine lead turnings held by asbestos sheets between the plates. An alternative form comprises a frame filled up with sheet lead strips separated by asbestos tape or cord. If the anode contains a large proportion of copper, an additional more open cathode, consisting for instance of parallel vertical strips set in a frame, may be placed between the anode and porous cathode and connected to this cathode so as to receive the bulk of the copper. The frame of the porous cathode fits in grooves in the sides and bottom of the vat so as to check leakage around its edges. When sufficient copper has been collected, the porous cathode is replaced bp a fresh one and the copper removed by electrolysis in a separate vat. The non-pervious cathode C<2> may be of iron, rubbed with graphite to prevent too firm adhesion of the nickel. A canvas bag may surround the anode A, which does not reach to the surface of the electrolyte or bottom of the tank, so that vigorous local circulation of the electrolyte can be maintained by means of a perforated air pipe P. When the nickel has to be free from iron, a practically watertight diaphragm, of strong parchment paper, silicated asbestos, &c., is placed between the two main cathodes, and the electrolyte passing through the pervious cathode is diverted through a purifying tank before reaching the second cathode. The anode may be obtained by calcining nickel-copper matte and smelting with carbon in a reverberatory furnace.
Patent GB-580706-A (GB)
Title: Improvements in or relating to conveyors
IPC: B65F3/22
Filed: 1944-07-19
Abstract: 580,706. Conveyers ; vehicle fittings for loading. MERCER, S. July 19, 1944, No. 13780. [Classes 78 (i) and 78 (iv)] A non-rotary receptacle is provided at one end with a loading hopper and a short charging worm, the driving shaft of which passes through the tubular spindle of a longer discharging worm in such manner that while the discharging worm is rotatively free of the charging worm when the latter rotates to charge the receptacle, it becomes coupled thereto when the charging worm is reversed, both worms then rotating together to discharge the receptacle. The receptacle may be associated with, or form part of, a mechanically propelled vehicle, the engine of which is arranged to drive the charging worm. The hopper 4 is carried by members 5a which are pivoted at 5 to the top of the receptacle 1. It may be provided with one or more charging apertures, an extension 22 forming a hood, and an inclined plate 25 which directs the material to the charging worm 10. This worm is carried upon and driven by a shaft 11 which passes through the tubular spindle 9 of the discharging worm 8. The shaft 11 is mounted in bearings 12 carried by frames 13 on the chassis and is driven from the power take-off shaft 33 of the engine through gears 15, 16. The end of the shaft 11 is secured to a collar 27, Fig. 4, which is fixed in the tubular spindle 9a of the worm 10. The ends of the spindles 9, 9a are separated by the flange 31 of a sleeve 30 which is mounted on the shaft 11 and on which rotates a collar 29 fixed in the end of the spindle 9. A floating washer 32 separates the collar 29 from a collar 19 which is keyed to the shaft 11 and carries pawls 17, Fig. 5. These pawls engage grooves 20 in a ring 21 secured to the spindle 9, the arrangement being such that the worm 8 is driven only when the shaft 11 is rotated in a direction to discharge the contents of the receptacle. Loading apertures may be provided in the top and sides of the receptacle.
Patent GB-956183-A (GB)
Title: Improvements in or relating to yoke assemblies for electromagnets
IPC: H01F7/08
Filed: 1962-04-10
Abstract: 956,183. Electromagnets. H. E. BENSON. April 10, 1962, No. 13802/62. Heading H1P. [Also in Division H2] An electromagnet for operating contacts or other devices has a yoke assembly consisting of two or more U-shaped magnetic elements 10, 12 on two or more sides, the elements overlapping one another at the ends of the coil. In Fig. 1 hole 14 is provided for accommodating fixing bolt 16, Fig. 3, and cut outs 22 hold clip 20, Fig. 2, when it is bent into place. The yoke elements may be laminated, Fig. 4 (not shown).
Patent GB-690976-A (GB)
Title: Filter leaf
IPC: B01D29/00
Filed: 1951-06-11
Abstract: 690,976. Leaf filters. BOWSER, Inc. June 11, 1951 [June 17, 1950], No. 13813/51. Class 46 A filter leaf comprises a pair of filter screens 3, Fig. 2, including between them a channel-forming element 1, and a bulbous edging 5 having a fluid outlet 29, Fig. 4, and a screen receiving slot 11 disposed about the peripheral portions of the screens and element. The edging 5 also has continuous opposed beads 15 extending from opposite sides of the slot for contact with the outer surfaces of the screens and means such as rivets 23 for drawing the beads into sealing relation with the screens. The element 1, Fig. 4, is preferably a coarse screen of about one-quarter inch mesh, while the screens 3 are for example 24 x 110 mesh. The edging 5 is preferably formed as two U-shaped members abutting and welded at top and bottom to form a rectangular framework. A lap plate 25, Fig. 2, is secured across the upper join and a nozzle fitting 27 across the lower. The element 1 is cut away at 19 in the region of the outlet 29 and of the lap-plate 25.
Patent GB-548378-A (GB)
Title: Apparatus for use in obtaining aerial photographs
IPC: G02B27/64
Filed: 1940-09-06
Abstract: 548,378. Mounting cameras in aircraft. FOLLETT, F. W. Sept. 6, 1940, No. 13949. [Class 98 (i)] [Also in Group XXXIII] A camera for use in aircraft is carried with its optical axis substantially vertical in a cradle sus pended from a universal joint the swinging movements being cushioned by means co-acting with a fixed rod secured at its upper end and normally in align ment with the optical axis of tht camera. As shown, the camera is rotatably carried in a flanged ring 11 bolted to a cradle 14 with interposed shock-absorbing rubber washers 15. The cradle is sus pended from a universal joint formed by a cruciform member 19 pivotally connected to it anc to a U-form bracket 18, the bracket being attached to a fixing plate 27 by a screw 28 having a semi-spherical head so that the bracket may be adjusted by means of four thumb-screws bearing on the plate 27. The means for cushioning the swinging movements of the cradle comprise four cylinders 37 with spring-pressed plungers 38 bearing on a disc 46 carried by a rod 22 rigidly attached to the bracket 18, the cylinders being arranged in an oil bath carried by the cradle and having ball valves to admit the oil and adjustable needle valves controlling its expulsion. A balancing weight 53 is adjusted manually along a rod as the film is wound from one spool to the other. In a modification, the cushioning cylinders have solid pistons with piston rods connected to them and the disc 46 by a ball and socket joints.
Patent GB-864020-A (GB)
Title: A machine for testing a helical screw thread or the like
Inventor: MERRITT HENRY EDWARD
IPC: G01B5/16
Filed: 1957-05-02
Abstract: 864,020. Testing helical threads. GOULDER & SONS Ltd., J. May 2, 1958 [May 2, 1957], No. 13971/57. Class 106 (2). A machine for testing a helical screw thread 10 or similar article by use of a stylus 54 comprises a cylinder 3 mounted for rotary and axial movement and adapted to be connected to the workpiece 10, and a roller 6 adapted to drive the cylinder 3, the axis of the roller 6 being adjustably inclined relative to the axis of the cylinder 3. The roller 6 is adjustable about a horizontal axis through its centre, perpendicular to the axis of the cylinder 3. Rough and fine adjustments are described, an optical magnifying system being used to read the final angular position. When the preliminary adjustment has been made a motor 31 drives the roller 6 which thus drives the cylinder 3 in a helical manner corresponding to the required helix of the workpiece 10. Any inaccuracies in the part 10 will be indicated on a dial gauge 55. Two pins (not shown), engaging in recesses in the end 3B of the cylinder 3 can be used to lock the cylinder against rotation when the device is not in use, and the roller 6, which is mounted on a plate 15 able to flex slightly at 33, can be withdrawn out of contact with the cylinder 3 by use of a screw (not shown).
Patent GB-609381-A (GB)
Title: Improvements in or relating to a device for measuring direct voltages
IPC: G01R19/18
Filed: 1946-05-09
Abstract: 609,381. Current and voltage measurements and measuring apparatus. PHILIPS LAMPS, Ltd. May 9, 1946, No. 14029. Convention date, Feb. 6, 1942. [Class 37] Relates to a system of measuring direct voltages by changing them to interrupted voltages which are amplified and measured. According to the invention, a condenser 6, Fig. 1, in the input circuit of a valve 3 is alternately charged by the direct voltage 1 and discharged; preferably, a trembler 8 actuated by alternating current alternately closes contacts 7<1>, 7 in the charging and discharging circuits of the condenser. In a modification, the condenser is alternately connected to opposite points of a bridge circuit so as to measure the potential difference, Fig. 2 (not shown). Specification 551,075 is referred to.
Patent GB-658519-A (GB)
Title: Improvements in or relating to kinematograph apparatus
IPC: G03B9/10
Filed: 1948-05-25
Abstract: 658,519. Kinematograph shutters. CLEGG, J. May 25, 1948, No. 14088. [Class 97 (i)] Each flicker blade A is formed of opaque material with a relatively narrow transverse slot D covered by a colour filter H having a row of small holes L running at an angle to the length of the slot. The filter H is held in place by a frame G and the screw K resists the centrifugal force on it. A negative lens N may be provided, registering with a hole in the filter. The shutter is positioned in front of the projection lens at such a distance that an image of the positive arc carbon is formed on it.
Patent GB-149807-A (GB)
Title: Improvements in or relating to brushes, mops, swabs, and the like
IPC: A47L13/24
Filed: 1919-06-04
Abstract: 149,807. Challis, C. E. June 4. 1919. Mops; bristles, fixing.-In a mop, swab, brush, &c., the pieces of fabric, yarn, &c. A are bound at the middle by wire by which they are also secured to arms I on a centrally screwed boss. The boss is secured within a cap B by screwing on to a screw D secured against rotation by an hexagonal &c. part of the shank engaging a similarly-shaped socket in the cap. The handle is detachably attached by passing a slotted plate F carried thereby, over the elongated head of the screw D and turning it through a right-angle. The cap is provided with internal and external buffer washers G, C.
Patent GB-271890-A (GB)
Title: Improvements in or relating to electric safety lamps for miners
IPC: F21V25/06
Filed: 1927-05-26
Abstract: 271,890. Daloz, J. G. May 26, 1926, [Convention date]. Battery lamps; cut-out arrangements.-In miners' lamps provided with a cut-out device comprising an elastic diaphragm j in communication with compressed gas contained in a bell c, a resistance wire is interposed between the diaphragm and the coacting contact g' so that when contact between these members is broken by the gas pressure falling a dim light insufficient to ignite fire-damp is maintained. The bell is adapted to be charged with gas through a valve i that accommodates the plunger contact i<5> for engagement with the centre contact of the bulb, a spring i<6> serving to control both the valve stem and the contact i. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the following. To enable the compressed gas to be released automatically if fire-damp be present, a tube A projecting from the bell c is closed by an easilyfusible seal close to which a ball B of spongy platinum is mounted. The platinum is placed at the centre of a spherical reflector arranged in a hood D so that fine-damp can accumulate in it, and the reflector is enclosed in heat-insulating packing G. To facilitate renewal of the platinum, the chamber in which it is located is provided with a sealed removable, cover E<1>. This subjectmatter does not appear in the Specification as accepted.
Patent GB-1285148-A (GB)
Title: Improvements in or relating to mechanical foams
IPC: C08J9/30
Filed: 1970-03-24
Abstract: 1285148 Coating ETABS A CHOMARAT & CIE 24 March 1970 [8 May 1969] 14160/70 Heading B2E [Also in Divisions B5 and C3] A layer of polyvinyl chloride foam is coated with a similar foam but having a higher content of fibres. Both the foams are made by mechanically beating a plastisol, viz a suspension of polyvinyl chloride in a liquid plasticizer, in the presence of air and an emulsifying agent, e.g. soap, and which are mechanically reinforced by incorporation into the foam, before, during or after formation of 2-20% liquid (based on the plastisol) of synthetic textile fibres which are of polyamide or polyester of 1-2 deniers and 0.1-6 mm. in length. In the examples the foams were made from a mixture of polyvinyl chloride, dioctyl phthalate, benzyl butyl phthalate, epoxydised soya oil, an emulsifier, polyamide fibres and optionally colouring.
Patent GB-1094011-A (GB)
Title: Apparatus for machining stacks of piston rings
IPC: B23Q7/04
Filed: 1965-04-02
Abstract: 1094011 Turning; making piston rings GOETZEWERKE FRIEDRICH GOETZE A G 2 April 1965 [2 April 1964] 14173/65 Index F2T 37E1R Apparatus for machining and handling stacks of piston rings comprises a loading and aligning unit 1 for each stack 6 and a first clamping device 13 which conveys the aligned stock 6 from the loading unit 1 to a copying lathe 2 to effect non- circular maching of the rings. The first clamping device is mounted on a carriage 7 and movable along guideways 10 and 14 at right angles to each other. A second clamping device 16 mounted on a carriage 8 moves along guideways 15 and 10 to remove the machined stack from the lathe and transport it to a slitting machine 3. Following the slitting operation a third clamping device 18 removes the slit stack 6 from the machine and transfers it to a washing unit 4 the washed stack of rings being subsequently transferred by means 19 to a storage location 5. The clamping devices 13, 16 and 18 are all of similar construction and are operated pneumatically to effect clamping of the stacks.
Patent GB-932150-A (GB)
Title: Improvements in the teeth of card clothings
IPC: D01G15/84
Filed: 1962-04-12
Abstract: 932,150. Card clothing. F. REITERER, L. WINDISCH, and J. NIFENECKER. April 12, 1962 [Feb. 12, 1962], No. 14176/62. Class 120 (3). A tooth of a card clothing is of generally truncated pyramidal form having its frontal and dorsal faces inclined in the same direction and curved to present respective concave surfaces as viewed from the front of the tooth. The tooth has a flat top surface, is made of any metal, and may be tempered throughout or only in the upper part. The heel of the carding may be plain or recessed. The principal dimensions of a card clothing are given.
Patent GB-581251-A (GB)
Title: The preparation of unsaturated oxalates and polymers thereof
IPC: C08F18/08
Filed: 1944-07-26
Abstract: An aliphatic dihydric alcohol is reacted with allyl and/or beta chloroallyl and/or beta methallyl mono-oxalates or the acid chlorides or anhydrides thereof, the water or hydrochloric acid formed being removed from the reaction mixture.  Suitable dihydric alcohols are ethylene-, trimethylene-, propylene-, di-and other polyethylene-glycols.  The product may be polymerized in the presence of polymerizable compounds such as methyl methacrylate, vinyl chloride, vinyl acetate, styrene, maleic anhydride and/or other materials such as dyes, pigments, fibrous and mineral fillers.  In the examples: (1) ethylene glycol and allyl oxalyl chloride (prepared from oxalic acid and allyl alcohol to give allyl hydrogen oxalate followed by treatment with thiovinylchloride) are reacted together giving ethylene bis-(allyl oxalate) which is polymerized in the presence of benzoyl peroxide and also with (a) vinylchloride; (b) maleic anhydride; or glass cloth is soaked in ethylene bis-(allyl oxalate) and benzoyl peroxide and the mass heated.  The Provisional Specification refers to the use of half esters other than the mono-oxalates, viz.: those derived from malonic-, succinic, diglycollic and terephthalic acids.  Specification 450,305 is referred to.ALSO:Glass cloth is soaked in a mixture of benzoyl peroxide and ethylene bis (alkyl oxalate) and stretched over a former so there are 20 layers of cloth and the assembly is heated to give a hard shaped sheet of laminated glass cloth.  Specification 450,305, [Group IV], is referred to.
Patent GB-1454270-A (GB)
Title: Rotary pump
Inventor: FRANZEN I
IPC: F04D7/04
Filed: 1975-04-08
Abstract: 1454270 Centrifugal pumps ITT INDUSTRIES Inc 8 April 1975 [9 April 1974] 14320/75 Heading F1C In a motor-driven centrifugal pump of the kind in which the impeller 3 is disposed to one side of the pumping chamber 4 so that the pumping effect is obtained by the generation of a swirl in the chamber in front of the impeller, at least part of the pump casing 8 is resilient so that when a predetermined volumetric flow is reached, deformation of the part occurs to tend to prevent further increase of the flow. The casing 8 comprises a rigid outer part 7 of sheet metal and an inner part 9 of resilient material, such as rubber. When a predetermined volumetric flow is reached, the front portion of the casing inner part 9 deforms around the inlet opening and becomes folded inwardly against the impeller hub 6 to throttle the flow and prevent further increase.
Patent GB-1362693-A (GB)
Title: Copolymers of olefines with unsaturated furan or thiophene derivativ es
IPC: C08F224/00
Filed: 1971-05-11
Abstract: 1362693 Unsaturated furan or thiophen copolymers SOC NATIONALE DES PETROLES D'AQUITAINE 11 May 1971 [11 May 1970] 14331/71 Heading C3P Copolymers of monoolefins with unsaturated furan or thiophen derivatives are obtained using conventional Zeigler-Natta catalysts. Non- conjugated dienes may also be included in the monomer mixture. The heterocyclic monomers are of the formula  where X is O or S and one of the four R symbols is a group of formula where m is 0 or an integer of 1 to 12, and the other three R symbols represent hydrogen, halogen or an alkyl, aryl, cycloalkyl, alkoxy, aryloxy or dialkyl-amino radical of up to 16 carbon atoms. The heterocyclic monomers may be complexed with Lewis acids, e.g. Al alkyl or halide, ZnCl 2  or SnCl 4 . In examples, ethylene, optionally with propylene is copolymerized with adducts of vinyl furan and vinyl thiophen with cyclopentadiene i.e. norborneo substituted furan or thiophen, in the presence of VOCl 3  or a VCl 3  complex with tetrahydrofuran and (C 2 H 5 ) 2 AlCl, in one case with hydrogen also present. The products may be thermoplastic or elastomeric; the latter are vulcanizable with sulphur or freeradical generators.
Patent GB-726739-A (GB)
Title: Improvements in or relating to shell moulding
IPC: B22C23/00
Filed: 1953-05-21
Abstract: 726,739. Moulds; moulding processes. FORD MOTOR CO., Ltd. May 21, 1953 [June 16, 1952], No. 14352/53. Class 83 (1). A process of preparing a shell mould or core comprises applying a first loose mixture of sand and thermosetting resin to a heated metal pattern and allowing the resin to cure sufficiently to form a thin shell, removing non- adhering mixture, allowing the shell to cure further, and applying a second sand-resin mixture until the desired thickness is built up, removing the excess mixture and curing the resulting laminated mould, the sand of the first mixture being finer than that of the second. It may comprise half fine sand and half silica flour mixed with 15 per cent by weight of resin. This is applied for five seconds to a pattern heated to 350‹ F., after which the excess is removed and the shell allowed to cure briefly. The second mixture may consist of 6.5 per cent of resin with 93.5 per cent of ordinary foundry sand, and is applied until a desired thickness is built up, after which the excess is removed, the mould is cured, stripped from the pattern. and backed up with shot ready for pouring. In another example the first mixture consists of silica flour and 26 per cent resin. Specification 725,470 is referred to.
Patent GB-587783-A (GB)
Title: Improvements relating to fastening devices
IPC: F16B5/10
Filed: 1944-07-27
Abstract: 587,783. Stud - and - socket fasteners. CAMLOC FASTENER CORPORATION. July 27, 1944, No. 14383. Convention date, Oct. 15, 1943. [Class 44] In a fastening device of the stud and socket type, one of the fastening elements is provided with a projecting base or flange which is fitted into an apertured mounting member having upwardly and inwardly extending flanges between which the base is introduced, the inner edges of the flanges being concave. In the form shown, the element 10, Fig. 2, is of the kind having a transverse slot 11, cam surfaces 12 and depressions 13 to co-operate with a second element consisting of a stud with a cross-pin, and is formed with a rectangular base 15. The mounting member 17, Fig. 1, has upwardly and then inwardly turned flanges 21, the edges 22 of which are curved to conform to the shape of the body of the element 10. The end parts 23, 24 of the flange are rounded, one part 24 being preferably more cut away than the other part 23, so as to allow the element 10 to be sprung into place by a slight flexing of the member 17 as shown in Fig. 5. The dimensions of the parts are such that slight movement of the element 10 in the member 17 can take place. An aperture 20, Fig. 1, in the mounting member 17 permits the passage of the stud element of the fastener into the element 10.