baber/WOPTO huggingface dataset:
Patent GB-1422298-A (GB)
Title: Electrolytic cell
IPC: C25B9/19
Filed: 1974-08-09
Abstract: 1422298 Electrolysis cells LE NICKEL 9 Aug 1974 [16 Aug 1973] 35289/74 Heading C7B A cell for producing metal, e.g. Ni, by electrolysis of aqueous chloride solutions comprises at least one tank 1 having alternating upright cathodes and anodes, each anode being surrounded by a box whose sides which face cathodes comprise a diaphragm, the cell further comprising means for collecting and recovering chlorine, for drawing off electrolyte surface vapour, for locating and retaining the cathodes, anodes and anode boxes, and for blowing gas into the cell below each cathode. In Fig. 1, each anode box is covered by an inverted U-channel 6 dipping into the electrolyte, and communicating via pipe 11 with a longitudinal Cl 2  recovery pipe 10 in a longitudinal trough 9. A further longitudinal channel 12 is attached to the trough and communicates with the cell via gap 13 and is connected to suction means. Flexible transverse strips 14 cover the cell and channels 9, 12 and are supported on rods 17 which extend upwardly from the sides of overflow channel 15, whereby air may be swept across the cell to extract vapours. A longitudinal pipe 21 supplies gas to distributer pipes 20a, 20b which are arranged in a shallow V in the vertical plane of each cathode. Each pipe 20 may have two rows of holes of 0.1-0.5 mm dia spaced symmetrically at 45 degrees on opposite sides of the vertical plane. Fig. 6 is an exploded view of the locating means, which comprise U-rail 31 at the tank side, having a recess receiving anode box 30. A small J-clamp 39 engages the end 40 of the box and is bolted on axis 46 via lug 45 to a plate 37 on rail 31. Large J-clamps engage the top of each side of the box at 48a, 48b and are located at their edges 47a, 47b in recesses formed in a crenellated side rack 32. The upstanding edge 41 of the small clamp 39 may be bolted as at 44 to the tooth 38 of the rack. The large clamps may also serve to retain and tension a cloth diaphragm. Cathodes having insulating edge frames may be fitted in the gaps between adjacent edges 36 of rails 31 and bent-over portions 50, 49 are provided to guide the cathodes into position. Each anode box may have a base plate 53, Fig. 1, which may be bolted to a lug at the base of rail 31. This plate may have holes in to allow passage of pins 54a, 54b affixed to the base of the tank and which engage in blind boxes in the anodes to locate them. Each anode may be mounted on rods 7 from a member 8 whereby an anode may be removed from a box without moving the box itself. Bolts 7 also support the strips 14. A further pair of crenellated racks may be provided longitudinally at the cell bottom to locate the bottoms of the cathode frames. The cathodes may be of e.g. stainless steel, Ti, Al or the metal being recovered and the anodes, which are insoluble, may be graphite or Ti plated with Ru, Pt or Pd.
Patent GB-482914-A (GB)
Title: Method of reducing the tendency of tempered glass articles to yield under their internal stresses
IPC: B21C37/28
Filed: 1936-12-24
Abstract: 482,914. Tempering glass. SADDAN, R. (Corning Glass Works) Dec. 24, 1936, No. 35419. [A Specification was laid open to inspection under Sect. 91 of the Acts, July 1, 1937.] Drawings to Specification. [Class 56] A method of increasing the stability of tempered glass articles consists in tempering the articles to produce a high degree of stress in the glass, and then subjecting them to heat treatment at a temperature, and for a time, adapted to reduce the stress to a predetermined value. The method is suitable for treating tempered glass articles which are subjected to heat in service. For example, a cooking-dish made of a glass composed of 60À5 per cent of silica, 21À4 per cent of alumina, 0À6 per cent of sodium oxide, 8À7 per cent of magnesium oxide, and 1-5 per cent of fluorine is highly tempered. It is then heated to a temperature of 535‹ C. for two hours, or to 510‹C. for seven hours. The compositions of a number of glasses to which the method may be applied are given in the Specification, and the effect of the treatment of the glass is illustrated by diagrams.
Patent GB-343915-A (GB)
Title: Improvements in or relating to sound producing instruments
IPC: G11B19/20
Filed: 1929-11-20
Abstract: 343,915. Gramophones. MOON, H. H. and MOON, S. H., 10, Holloway Head, Birmingham. Nov. 20,1929, Nos. 35422 and 38320. [Class 40 (ii).] Records and turntables.-A disc record b is entirely insulated from all parts of the machine by rubber or like sound-resisting material. As shown, the record b is separated from the turntable c by a sheet d of sound-resisting material and from the central peg a by an annulus e of rubber or like material accommodated in a recess in the spindle. The central peg a fits into an axial recess in the driving spindle. One of the Provisional Specifications describes a disc record having a bushing of rubber in the central hole. This Provisional Specification also states that rubber or other sound insulating material may be incorporated between two sections of the driving spindle.
Patent GB-791961-A (GB)
Title: Improvements in or relating to electronic relay devices
Inventor: NEALE DENIS MANKTELOW
IPC: G03B27/16
Filed: 1954-12-07
Abstract: 791,961. Photo-electric measuring arrangements. ILFORD, Ltd. Dec. 6, 1955 [Dec. 7, 1954]. No. 35449/54. Addition to 667,296. Class 40 (3). [Also in Group XL (c)] In a photographic printing exposure control circuit of the type described in the Parent Specification in which a gas-filled relay is triggered to terminate the exposure when the time integral of a photo-electric current regulated by the intensity of the printing light passing through the negative reaches a pre-determined value pulses are applied to the control electrode of the relay from a relaxation oscillator circuit. The Figure shows a photographic printing control circuit in which the vacuum photo-cell V1 is illuminated from the printing light passed by the negative and paper from lamp L, the charge on capacitor C1 being a measure of the time integral of the transmitted light. To initiate an exposure period, switch S is opened so that relay A3 is de-energized and lamp L is illuminated since contact a/3 is closed. Capacitor C2 is charged from the H.T. supply via resistor R3 and periodically discharges through gas discharge tube V3. The sawtooth voltage generated across capacitor C2 is applied to the trigger electrode of gas tube V2, its amplitude being such that when the charge on capacitor C1 reaches a predetermined value tube V2 is fired and relay A3 is energized. Contact a/3 now opens so that lamp L is extinguished thus terminating the exposure period; contact a/1 is closed so that capacitor C1 discharges through resistor R4 and contact a/2 is opened thus removing the short-circuit from across the feed resistor R6. The discharge of tube V2 is extinguished when switch S is closed and the sequence is then ready for initiation again by opening switch S. The time integral of light intensity necessary to trigger tube V2 is dependent on the setting of bias control potentiometer R8. Specification 788,920 is referred to.
Patent GB-775070-A (GB)
Title: Improvements relating to electrical junction boxes
Inventor: GAULD JOHN EDWARD ALEC
IPC: H01R31/02
Filed: 1955-12-10
Abstract: 775,070. Junction-boxes; two-part couplings. ARMSTRONG WHITWORTH AIRCRAFT Ltd., Sir W. G. Dec. 10, 1955, No. 35545/55. Class 38 (1). A junction-box, particularly for use in aircraft, comprises a casing 10 having depending flanged walls 11  supporting a nylon block 12 in which rows of socket contacts 13 are embedded. In the outer walls of casing 10 are fixed sockets 14 to which the external wiring is connected, these sockets being permanently wired to the contacts 13 and such wiring embedded in insulating material 15. Co-operable with the contacts 13 is a removable connector unit consisting of a moulding 16 and a cover 17 to which is secured a metal plate 18 carrying captive butterfly screws 19 by which the unit may be secured in the box, the plate also carrying a window 20 beneath which a circuit diagram may be located. Embedded in the moulding 16 are a plurality of pairs of bus-bars 23 and coaxial with bores in the bus-bars are plug contacts 24 held in position by screws 26. Each plug contact can be connected to one or both of the bus-bars by a split collet 27, surrounding the screw, or insulated from a bus-bar by an insulating sleeve 28 or from both bus-bars by a longer insulating sleeve 28a and plug contacts in different rows can be interconnected by insulated links 29. Thus when a change in the wiring of the box is necessary, the connector unit can be removed and taken to a convenient place to alter the interconnections between the plugs and bus-bars. The box may contain a plurality of removable connector units (Fig. 5, not shown).
Patent GB-795105-A (GB)
Title: Steroid compounds and the preparation thereof
IPC: C07J75/00
Filed: 1955-05-20
Abstract: The invention comprises a compound having the formula: <FORM:0795105/IV (b)/1> wherein R1 is a b -hydroxyl or keto group and R2 is hydrogen, hydroxyl and esters and ethers thereof containing from one to ten carbon atoms in the added moiety, and the preparation thereof by treating a compound having the formula: <FORM:0795105/IV (b)/2> with an oxidizing agent.  As oxidizing agents there may be used perbenzoic acid, perphthalic acid or sodium chromate.  The 21-hydroxyl group may be esterified to produce the formate, acetate, propionate, trimethylacetate, benzoate, succinate, phthalate or cyclohexanecarboxylate or etherified to produce the methyl, ethyl or benzyl ethers.  An example describes the preparation of 11b ,17a ,21 - trihydroxy - 14a ,15a -epoxido - 4 - pregnene - 3,20 - dione - 21-acetate, 11b ,17a ,21 - trihydroxy - 14a ,15a -epoxido - 4 - pregnene - 3,20 - dione, and 17a , 21 - dihydroxy - 14a ,15a  - epoxido - 4 - pregnene - 3,11,20 - trione acetate.  Specification 795,104 is referred to.
Patent GB-1241008-A (GB)
Title: Improvements in or relating to circular knitting machines
IPC: D04B15/78
Filed: 1968-07-26
Abstract: 1,241,008. Knitting-machines. E. MAYER [trading as MAYER & CIE]. 26 July, 1968 [23 Sept., 1967], No. 35728/68. Heading D1C. A number of patterning attachments 6 in a circular machine are selectively actuated by members 1 which are engaged and operated by control elements 2 revolving round the machine. To enable the control elements to be moved into an operative position some of the members 1 are displaceable against the action of springs 7.
Patent GB-422627-A (GB)
Title: Improvements in carburetters
IPC: F02M11/08
Filed: 1933-05-13
Abstract: 422,627. Spray carburetters. PORTES, E. J. A., 2, Place Ramond, Bagneres-de- Bigorre, Hautes PyrÚnÚes, France. May 13, 1933, No. 35774/34. Divided out of 422,558, under which a Specification was laid open to inspection under Sect. 91 of the Acts, Nov. 14, 1933. [Class 7 (iii)] In a carburetter in which a valve such as 5, controls an air intake and brings into operation one or more of a number of fuel ports 1 in a container 2, small fuel wells 10 are disposed along the container and each supplied through a minute hole 11, the fuel being drawn therefrom by engine suction through a pipe 13 or other passage larger than the hole 11 as the masking action of the valve 5 ceases to affect one or more of the wells. The valve 5 consists of a bevelled slide operating in a flared opening 4 which is longer at its base than its upper edge and may have a width increasing in the direction of the opening of the valve for at least the region of the full closing thereof. The opening may be formed in two superposed parts. The wells are disposed in a container 12 and are open to the atmosphere at their upper ends. At starting, a hand operated slide is pushed across the front of the fuel ports to compel the air to travel along instead of across them. Specification 422,558 is referred to.
Patent GB-957300-A (GB)
Title: Device for supplying livestock with water or other liquids
IPC: A01K7/06
Filed: 1960-12-01
Abstract: 957,300. Drinking appliances for animals. P. D. C. WALKER. Feb. 27, 1962 [Dec. 1, 1960], No. 35987/60. Heading A1M. An animal drinking appliance comprises a tubular body 10 connected with a liquid supply pipe 14, and a tube 17 closed by a cap 18 and carrying a resilient washer 16 which seals against the body 10. A nozzle 21 restricts the supply of liquid. An animal pushing upwardly on tubing 20 attached to the tube 17 lifts the washer 16 from its seating so that liquid flows down the outside of the tube and may be drawn into the tube through holes 19. The washer may also be tilted by an animal pushing sideways on the tubing. In a modification a rubber cylinder 26 rests on an inwardly directed flange 25 of an outlet member 24 connected to the liquid supply and carries a container 31, provided with holes 32, which is raised by the animal to lift the cylinder 26.
Patent GB-419490-A (GB)
Title: Improvements relating to work holders for lens blanks
IPC: B24B13/005
Filed: 1933-12-23
Abstract: 419,490. Grinding lenses. HAUSSMANN, O. G., 726, Chestnut Street, Philadelphia, U.S.A. Dec. 23, 1933, No. 36240. [Class 60.] A holder for a lens blank, especially applicable to the grinding of facets on the blank in the manufacture of fused multi-focal lenses, comprises a blank-carrying member 13 rotatably mounted in a frame 7, which is supported on a rotating member 1 eccentrically to the axis of rotation and at an adjustable angle of tilt in relation to it. In the form shown, the rotating base member 1 is provided with a tapered socket 3 for mounting on a driving spindle and carries three brackets 6 provided with axles 5 on which are journalled lugs 8 depending from the frames 7. Springs 12 cause the frames to pivot around the axles 7 until they rest on a ring nut 10 screwed on to the base 1, by adjusting which nut the angles of tilt of the frames may be simultaneously and equally adjusted. The blank-carriers 13 may be equally and simultaneously rotated by means comprising an annular gear 26 mounted in the member 1 and rotated by a worm engaging worm teeth on its outer circumference. Internal teeth on the member 1 engage gears 30 which rotate through bevel gears 22, 21 the axles 5, and gears 35 on these axles engage annular racks 36 on the lower faces of the blank carriers 13, which are thus simultaneously rotated. The lens blank is secured in a recess in the upper side of the carrier 13 by a clamping lever 16 which is pivoted to a lug on the frame 7 and caused to bear on the edge of the blank by the action of a set-screw 20.
Patent GB-1483420-A (GB)
Title: Tricycle
IPC: B62K5/05
Filed: 1975-09-03
Abstract: 1483420 Tricycles D W SMITH 3 Sept 1975 [13 Sept 1974] 36287/75 Heading B7E A tricycle comprises a frame 10, a seat for a rider, propulsion means, e.g. 17, a single rear wheel 19 mounted on the frame 10, a head tube 14 at the front of the frame 10, a front frame member 23 secured to and extending downwardly from the head tube 14, a front wheel support structure 25 which carries a pair of front wheels 33 and is pivotally connected to the lower end of the member 23 so that the frame 10 may be inclined laterally with respect to the structure 25, e.g. when the tricycle is negotiating a curve, and steering means 16 having a shaft 15 journalled in the head tube 14 and operatively connected to cause simultaneous turning of the front wheels 33. In the illustrated embodiment the lower ends of tubes forming the member 23 are secured to a sleeve 35 journalled on a pin 36 secured to the structure 25. The structure 25 comprises an axle 26 carrying at each end a sleeve in which is journalled a king pin secured to a fork 32 rotatably mounting one of the front wheels 33. The steering shaft 15 is connected to a shaft 44 in turn connected through a universal joint 43 to a rotatable shaft 42 on the structure 25, the shaft 42 being connected by linkages 45, 47, 48 to the king pins 31. A luggage carrying frame 50 is mounted on the axle 26 and is provided with a slot 63 and stops 64, and a lever 65 on the frame 10 can be pivoted to enter the slot 63 to lock the frame 10 against lateral inclination, or to lie between the stops 64 to limit the amount of frame inclination, or to be displaced from the slot 63 and stops 64 to enable free inclination of the frame. The lever 65 is maintained in the selected position by a pawl and ratchet mechanism (Fig. 7, not shown). In an alternative embodiment two levers are provided on the frame 10 co-operating respectively with the slot and with the stops (Figs. 8 and 9, not shown).
Patent GB-821947-A (GB)
Title: Improvements in or relating to rotary devices and casing structures therefor
Inventor: NILSSON HANS ROBERT
IPC: F04C29/04
Filed: 1955-12-19
Abstract: 821,947. Rotary engines and compressors. SVENSKA ROTOR MASKINER A.B. Dec. 19, 1955, No. 36292/55. Class 110 (2). The casing of a rotary compressor or engine of the intermeshing screw-type is composed of inner and outer linings 38, 20 which are interconnected together by a tongue-and-groove connection 52, 50 to form cooling spaces 82, 84 divided by ported partitions 80. Cooling medium is fed from an inlet 86 to a space 88 encircling the inlet 54 of the engine and thence through ports 92 and the partitions to the uppermost series of chambers 84 and the inner chambers 82, the coolant being discharged through the remaining chambers 84 to twin outlets. Cooling medium is also fed to a space 184 which surrounds the rotor shafts and a space 154 formed in one of the end walls. Each rotor is provided with peripherally spaced grooves 206, an annular groove 208, radial grooves (see Figs. 12...15, not shown), and passages such as 202, the rotor being suitably provided with guide means and vanes to move the coolant (see Fig. 8, not shown). The inlet 54 of the engine consists of three portions 114, 116, 118 and air of high pressure and temperature is admitted to the space between the portions 114, 116 prior to mixing with the working medium entering the rotors. The male rotor is driven at a speed 50% higher than that of the female rotor, the working medium outlet being inclined toward the female rotor (see Fig. 3, not shown), in order to smooth out the differences in velocities of the said medium issuing therefrom. The parts of the casing exposed to high temperatures are made of alloy steels whereas the rest of the casing is made of iron plate or low carbon steel. For full details of the cooling passages in the casing and its metallic composition the Specification should be referred to.
Patent GB-1429835-A (GB)
Title: Manufacture of foams of ethylene polymers
IPC: C08J9/06
Filed: 1973-08-01
Abstract: 1429835 Foamed ethylene polymers BASF AG 1 Aug 1973 [2 Aug 1972] 36516/73 Heading C3C A foamed ethylene polymer is produced by mixing an ethylene polymer with a solid, gasliberating expanding agent and a cross-linking agent, heating the mixture in a mould to a temperature above the decomposition point of the expanding agent and above the decomposition point of the cross-linking agent, cooling the resulting expandable melt under pressure to a temperature below the solidification point of the melt and expanding the foamable material at a temperature above the crystallite melting point of the ethylene polymer, wherein the heating of the mixture of ethylene polymer, gas-liberating expanding agent and cross-linking agent is carried out in a pressure vessel under the pressure of an inert gas which is higher than the pressure produced by decomposition of the gas-liberating expanding agent. The inert gas pressure is at least 25 atm. and kept constant during heating and subsequent cooling of the expandable melt. Examples are given in which mixtures comprising (a) ethylene/n-butyl acrylate copolymer, azodicarbonamide, zinc stearate and 1,3 - bis - (t - butylperoxyisopropyl)- benzene or (b) polyethylene, polyisobutylene, zinc stearate, dicumyl peroxide and N,N<SP>1</SP>- dinitroso-N,N<SP>1</SP>-dimethylterephthalamide are formed into panels in a mould with heating, pieces of the panels then being placed in a tray in a vessel pressurized with nitrogen and heating. After cooling, the resulting boards are heated in a drying cabinet.
Patent GB-327745-A (GB)
Title: Means for preventing wear of socks and stockings
IPC: A43B23/28
Filed: 1928-12-11
Abstract: 327,745. Parsons, J. Dec. 11, 1928. Detachable stocking protectors. - A protector for wear over the stocking inside a boot or shoe comprises heel and toe portions b, a united by elastic or other resilient material c which mav be in the form of straps which may be provided with slides to adjust the device for different sizes of feet. The heel part mav be of thin leather, with or without an inserted stiffener, and the toe part of thin, light, strong material such as aeroplane cloth, balloon fabric, or the like. An elastic band e may be placed around the entrance to the toe part and may constitute the same.
Patent GB-954193-A (GB)
Title: Coal tar pipeline coatings
Inventor: KUHNEL MERVYN REDFERN
IPC: C09D195/00
Filed: 1959-10-28
Abstract: A primer for use with coal tar enamel comprises bituminous coal dispersed in a coal tar pitch/coal tar oil mixture at a temperature of 300-360 DEG C., and coal tar naphtha in an amount to afford brushing consistency and has dissolved therein polystyrene (e.g. 5 to 15% by weight) and/or chlorinated rubber (e.g. 1 to 10% by weight) in such amount as to enhance the adhesion of the primer and enamel to steel.ALSO:A primer for use with coal tar enamel comprises bituminous coal dispersed in a coal tar pitch/coal tar oil mixture at a temperature of 300-360 DEG  C. and coal tar naphtha in an amount to afford brushing consistency and has dissolved therein polystyrene (e.g. 5 to 15% by weight) and/or chlorinated rubber (e.g. 1 to 10% by weight) in such amount as to enhance the adhesion of the primer and enamel to steel.ALSO:Mild steel pipes and plates are coated, e.g. by brushing or pouring, with a primer comprising bituminous coal dispersed in a coal tar pitch/coal tar oil mixture at 300-360  DEG C., and coal tar naphtha and having dissolved therein polystyrene and/or chlorinated rubber and then with coal tar enamel comprising bituminous coal dispersed in a coal tar pitch/coal tar oil mixture and fillers, e.g. talc or slate.
Patent GB-171054-A (GB)
Title: A collapsible motor boat
IPC: B63B7/06
Filed: 1920-12-31
Abstract: 171,054. Blancheville, G., and Olivier, F. Dec. 31, 1920. Driving-arrangements for screw propellers. - A collapsable motor-boat is constructed with two axial and two lateral floats connected by frame plates and cross-pieces with bands thereon, a superstructure containing the feed tank, seating, and controls. The engine and driving-gear is placed in the aft axial float. The axial floats a, b, have steel bands 3 which are bolted to longitudinals 2, and two side floats c, d have bands 6 which are bolted to cross-members 5 carried by the longitudinals. A superstructure 14 of wickerwork, sheet iron, or aluminium is secured to the cross-pieces 5 and contains seats 15, a fuel tank 17, and control organs. With this construction, the parts can be readily detached for facilitating transport. In the float b are placed the engine 9 and gearing 12, air for the engine being admitted through a cowl 8.