baber/WOPTO huggingface dataset:
Patent GB-1255303-A (GB)
Title: Improvements in and relating to conical rollers for roller tracks
IPC: B65G39/00
Filed: 1970-07-29
Abstract: 1,255,303. Roller conveyers. KARL STUMPF K.G. 29 July, 1970 [14 Feb., 1970], No. 36632/70. Heading B8A. [Also in Division F2] A composite conical roller for roller tracks comprises separate truncated elements assembled longitudinally in series with the larger diameter of each element corresponding to the smaller diameter of the adjacent element. As shown in Figs. 1 and 2, a series of elements 1, 1<SP>1</SP> ... are mounted on a cylindrical drum 4 supported by bearings on a shaft 3, the drum being formed with ribs 6 engaging grooves in the roller elements. In Fig. 5 the elements 1, 1<SP>1</SP> ... are mounted on a square or polygonal shaft 10 and engage by spigot and socket joints 15. In a modification, Fig. 8 (not shown), the roller elements are secured to discs (27) spaced along the shaft. In Fig. 7, the elements have spigot and socket connections secured by radial pins 22 and are secured to a circular shaft 26 by antifriction discs 25. The roller elements may be split along diametral planes, Figs. 3 and 4 (not shown).
Patent GB-1159382-A (GB)
Title: Improvements in Reciprocating Pumps
Inventor: HUGHES CECIL
IPC: F04B43/02
Filed: 1965-08-26
Abstract: 1,159,382. Reciprocating pumps. ORBITAL ENG. Ltd. Aug. 25, 1966 [ Aug. 26, 1965], No. 36644/65. Heading F1A. In a pump of the type comprising three successive chambers formed by a three section casing 2a, 2b, 2c and in which flexible plates 4, 6 are secured to rods 22 which are reciprocated towards and away from each other by levers oscillated by eccentrics on a common shaft, the rods 22 are guided in tubes 24 secured to the sections 2a, 2c and surrounded by flexible sealing sleeves 42 secured to the tubes and flexible plates. The flexible plates are chamfered at 50 to control the flexibility in that area. Inlet and outlet valves 40, 41 may be provided. The mid point of reciprocation is such that the centre of the plates is lower than the periphery.
Patent GB-889145-A (GB)
Title: Apparatus for rapid heating of liquids
Inventor: HALLSTROM BENGT HILDING
IPC: A23C3/037
Filed: 1958-11-17
Abstract: 889,145. Sterilizing liquids. SEPARATOR A.B. Nov. 17, 1958, No. 36891/58. Class 49. [Also in Group XIII] In an apparatus for directly heating liquids by blowing into them a vapour or gas, e.g. steam, the liquid, e.g. milk, cream, fruit juice is passed through a channel 1 defined by a number of elements 2 lying side by side within a housing 7 through which steam is passed before being blown into the channel 1 through grooves 6 on one or both contact surfaces of the elements 2 which are arranged in a plane parallel to or including the central axis of the channel 1 so that a rotational movement is imparted to the liquid passing through it. The grooves 6 may be of different sizes and preferably widen towards their openings into the channel 1. The ends of the elements 2 (Figs. 1 and 2) may have tapered ends clamped by sleeves 4, 5 which are held in position by nuts 8. A side pipe 11 admits steam under pressure into the housing 7 whilst the liquid to be heated thereby is passed through holes 15 in a disc 14 set in an aperture 12 of the sleeve 4. In an alternative form of apparatus (Fig. 5), the elements are in the form of lamellµ 18 having grooves 24 and clamped together by plates 19, 20 and screws 21. Specification 836,144 is referred to.
Patent GB-1498031-A (GB)
Title: Level controller
IPC: G05D9/12
Filed: 1975-08-06
Abstract: 1498031 Controlling centrifugal strainer IMPERIAL CHEMICAL INDUSTRIES Ltd 6 Aug 1975 [22 Aug 1974] 36935/74 Heading BID The feeding of each successive batch of slurry to the drum of a centrifugal strainer is controlled by a valve 15 which is closed automatically when a pressure-sensitive electric switch or pneumatic relay 9 detects a rise in pressure resulting from the closure by the slurry level 1 of open tip 6 of a pipe 5 through which liquid flows continuously into the drum. The drum rotates continuously, and liquid is fed to pipe 5 by a low rate meter 11 and a higher rate meter 14 in parallel. Valve 12 is closed automatically 3-30 seconds after valve 15 cuts off the slurry feed, while meter 11 continues to feed liquid to keep tip 6 clean The liquid may be water or organic solvent and may be identical to the liquid content of the slurry. Tip 6 may be slightly inclined to the slurry surface and located at least half a revolution forward of pipe 4 which delivers the slurry. The filter cake is removed by a knife (not shown) after each centrifuging, but residual cake progressively clogs the drum screen which results in a progressive reduction in the filling time of the drum to level 7 as less liquid is removed from successive batches during the filling steps. In Fig. 4 (not shown) a timer incorporated in unit 17 sends a first signal to discriminator (21) a fixed time after slurry feed valve 15 opens and discriminator (21) also receives a second signal from relay 9 when the slurry closes tip 6. The drum is sequentially filled with batches of slurry until discriminator (21) receives the second signal before the first, and when this happens it signals back to control unit 17 causing it to initiate a screen-washing step after the present batch of slurry has been centrifuged.. Wash timer (25) then opens valve (27) to deliver washing solvent to the drum via pipe 28 in place of the next batch of slurry. The discriminator (21) may be a double air-operated shuttle valve or two electric pressure switches coupled to latching relays. Slurries of dimethyl terephthalate in methanol and terephthalic acid in acetic acid may be centrifuged.
Patent GB-1065121-A (GB)
Title: Production of outer footwear
IPC: B29C39/02
Filed: 1963-09-20
Abstract: 1,065,121. Boots &c. O. SCHMIDT. Sept. 20, 1963 [Sept. 27, 1962], No. 37053/63. Heading A3B. [Also in Division B5] . In a method of producing shoes by moulding a sole or heel on to the bottom of a shoe upper located over a mould cavity 8, liquid or paste substances, which react to form a high molecular weight cross-linked polyurethane polymer, are introduced into the cavity via an inlet 2. The upper 5 is supported on a last 4 with an insole 6 and the mould has an air vent 3. The substances used may be mixtures of di-or polyiscyanate and di-or polyhydroxy compounds containing, if desired, extending or expanding agents and/or cross-linking catalysts.
Patent GB-1437430-A (GB)
Title: Sorting apparatus for a pipe working system
IPC: B65G47/90
Filed: 1973-08-06
Abstract: 1437430 Feeding pipes MITSUI SHIPBUILDING & ENG CO Ltd 6 Aug 1973 [9 Aug 1972] 37166/73 Heading B3E Pipe sorting apparatus comprises stacking means for supporting a plurality of pipes, and feed means for receiving a pipe from the stacking means and transferring it selectively to one of a plurality of means for moving the pipe to different respective destinations. In the Fig., pipes having been cut to length and fitted with end flanges are deposited on platform 2 where they accumulate against a feed device 5 comprising hooks 16 on shaft 15 reciprocated by piston and cylinder 10 controlled by valve 9 from control station 8. The hooks 16 first move clockwise, then anticlockwise to entrain a pipe. If the pipe is not to be bent, it is deposited on an incline 6 and rolls into a receptacle 7. If the pipe is to be bent, a beam 21 with hooks 14 is lowered by motor 17 on carriage 4 so that hooks 14 receive the pipe from hooks 16. The pipe is then raised, and the carriage moved over rails 12 to a pipe bending station 3. Delivery of a pipe to the bending station may be carried out as the result of a single manual push button operation, or by punched card operation in relation to a known sequence of pipes.
Patent GB-1494250-A (GB)
Title: Drive unit
IPC: H01R39/38
Filed: 1975-09-11
Abstract: 1494250 Drive units for washing machines MIELE & CIE 11 Sept 1975 [21 Dec 1974] 37343/75 Heading H2A A drive unit for a washing machine comprises an induction motor for the washing operation and a series-wound motor for spin drying, the brush holders 2 for the brushes 1 of the serieswound motor being supported in resilient mounting members 6. In the arrangement shown the members 6 are formed of silicone rubber and are secured to an end-plate (not illustrated) of the series-wound motor by means of clips 7.
Patent GB-1004173-A (GB)
Title: Improvements in or relating to the separation of metals from aqueous solutions
IPC: C01G1/12
Filed: 1962-10-02
Abstract: Metal cations may be separated from aqueous solutions by contacting the solution with an ion bonder consisting of a metal sulphide, particularly Pb, Fe or Ag sulphide, embedded in cellulose or a cellulose derivative which swells in water but is insoluble therein, e.g. an ester or an ether of fibrous or spherical ion bonder may be prepared by (a) the addition of H2SO4 to cellulose xanthate containing As, Sb or Sn, or (b) the reaction of an alkaline sulphide and an arsenic compound with an alkaline solution of a cellulose derivative, followed by precipitation with acid, e.g. acetic acid; the primarily precipitated arsenic sulphide may be reacted with another cation to form a sulphide which can be readily regenerated after use.  Particularly preferred cations are Pb++, used with an ammonracal or sulphate-containing solution, Fe++ used in the presence of OH-, or Ag+ used when Cl- or excess alkali ions are present. After reaction of the ion bonder with the desired metal or metals in aqueous solution the PbS, FeS or Ag2S may be regenerated by the passage of H2S or Na2S solution, preferably the former, or the ion bonder may be washed out and rinsed, by (c) dissolving all sulphides present in the material except one, and continuing to use the one for ion exchange, or (d) using a washing agent which contains a metal compound which forms an insoluble sulphide, and using such sulphide for ion exchange. Method (c) is applicable to an ion bonder containing Pb when alkali cyanide is used as washing agent and (d) to other ion bonders, except those containing Fe when alkali cyanide containing Pb, Cd or Zn is used as washing agent.  Lead sulphide ion bonders will separate Cu, Bi, Ag, Hg and nobler metals; iron sulphide separates Pb, Cd, Tl and Zn as well as the aforementioned; Ag2S can be used to bond only Hg and nobler metals.  Ion bonders containing different metal sulphides may be arranged sequentially to achieve the separate fixing of different metal cations.  Examples relate to the formation of a viscose-iron sulphide ion bonder, a cellulose ether-iron sulphide bonder, a viscose-lead sulphide bonder, a zinc sulphide-containing bonder, and a cellulose-copper sulphide bonder, and to the use of the aforementioned in fixing copper from cuprammonium sulphate, silver from a photographic fixing bath, copper and silver from a neutral and sulphuric acid solution, and silver, copper, cadmium and nickel successively from a solution containing all four. Specification 977,945 is referred to.
Patent GB-344454-A (GB)
Title: Improvements in or relating to the manufacture of reinforced glass sheets
IPC: C03C27/10
Filed: 1929-12-06
Abstract: 344,454. Compound transparencies. MATTINGLEY, N. B. and LANCEGAYE SAFETY GLASS, Ltd., Palace of Industry, Wembley, Middlesex. Dec. 6, 1929, No. 37493. [Class 140.] An intermediate sheet of cellulose acetate is united to two glass sheets by means of a liquid adhesive comprising a cellulose derivative, camphor and a gum or gelatinized substance applied to the glass. An example of a suitable adhesive is cellulose nitrate, 12 parts ; camphor, 2 parts; methyl ethyl ketone, 30 parts; ethyl alcohol, 15 parts; gum benzoin, 2 parts ; with or without triacetin, 5 parts ; and benzyl alcohol, 2¢ parts. The sheets are pressed at 100 lbs. per square inch and at 100‹ F. for five minutes and at 160-180‹ F. for 10 to 15 minutes.
Patent GB-874258-A (GB)
Title: Welding machine
Inventor: HALL ERIC THOMAS
IPC: B23K9/028
Filed: 1958-11-21
Abstract: 874,258. Welding by fusion. ROLLSROYCE Ltd. Nov. 20, 1959 [Nov. 21, 1958], No. 37517/58. Class 83 (4). In a welding machine a hollow electrode support is mounted for rotational and axial movement in a frame, the support has a welding electrode mounted eccentrically relative to the rotational axis thereof and the support serves to permit a supply of filler wire and/or a supply of fluid, e.g. an inert gas or cooling liquid, to be fed to the electrode through the interior of the support. The frame 1 of a machine carries a table 2, to the underside of which is secured by a clamp 3 a tubular titanium alloy sheet 4 having a circular hole 5 into which a circular sole plate 6 is to be welded, the sole plate being mounted on a projection 7 on the clamp. The frame also carries bracket 8 on which is rotatably mounted a tubular electrode support 9 carrying a horizontal, longitudinally adjustable arm 10 on which is carried the non-consumable electrode 11. A pinion 16 is splined on the support and is rotated by a chain 18 driven from a motor 17 and a sleeve 20 secured to the sleeve carries a rack 21 meshing with a pinion 22 driven by an electric motor to raise or lower the support. The end of the support engages the projection 7 on the clamp. A block 26 at the top of the support is rotatably mounted in a sleeve 31 provided with connections for argon shielding gas, cooling liquid and a tube 27 for a filler wire (if required). Welding current is supplied via a brush 35 and slip ring 36. In operation the motor effecting vertical movement of the support is controlled by electronic means responsive to the distance of the electrode from the work, to maintain a constant gap. Specification 843,510 is referred to.
Patent GB-909972-A (GB)
Title: Improvements in and relating to dynamic dampers of torsional vibrations of rotating masses
IPC: F16F15/167
Filed: 1959-11-05
Abstract: 909,972. Torsional vibration dampers. LUXEMBOURGEOISE DE BREVETS ET DE PARTICIPATIONS. Nov. 5, 1959 [July 22, 1959], No. 37621/59. Class 108(3). A torsional vibration damper comprises hub and inertia members with an annular enclosed chamber 6 between them with a minimum dimension 1À0 mm. and containing a substance with both elastic and plastic properties. A flange 5 of the hub member 3 and the inner faces of members 7, 8, which are bolted together to form the inertia member, enclose an annular chamber 6 of the U- shaped cross-section with a minimum dimension, for example between 1À5 and 5À0 mm. The chamber contains a mixture of polyisobutylenes with a high proportion of those of low molecular weight having strong adhesive properties and with the remainder of high molecular weight showing elastic and plastic properties. Toroidal rubber sealing rings 10 are provided in channels 11. Specification 841,797 is referred to.
Patent GB-1102121-A (GB)
Title: Improvements in or relating to power operated honing apparatus
Inventor: COX ALAN JOHN
IPC: B24B33/10
Filed: 1963-09-25
Abstract: 1,102,121. Honing. DELAPENA HONING EQUIPMENT Ltd. 22 Sept., 1964 [25 Sept., 1963], No. 37821/63. Heading B3D. In the honing of a parallel bore, using poweroperated honing apparatus comprising a reciprocatory workhead having a rotary spindle for supporting a honing tool and control means associated with the workhead to exert an axial force on a control rod arranged to act on cam means forming part of the honing tool, the force exerted by the control means is greater during stroking of the workhead in one direction as compared with stroking in the opposite direction, whereby substantially to equalize the honing action on both strokes. An electric motor 2 mounted on the machine frame 1 drives, through a variable speed gearbox 4 and a bevel gear-box 5, a splined shaft 3 driving a spindle 6 through an internally splined sleeve within a gear-box 7 mounted for vertical reciprocation on guide rods 8 connected to the frame 1. Reciprocation of the gear-box 7 is effected by double-acting hydraulic cylinders 9, the stroke being determined by limit switches 10 actuated by trip members 11 in a trip box 12 on the frame 1. A hollow drive-shaft 13 is connected at one end to the spindle 6 and a honing tool 14 is connected to the other end by a bayonet joint. Control means comprises an hydraulic cylinder 16, piston 17 and piston-rod 18, the rod extending into a bore in the gear-box 7. A control rod 19 extending through the bore of the drive-shaft 13 engages at one end the piston-rod 18 and at the other end a stem 20 of a double cone 22 for expanding the honing tool. An hydraulic power unit 25 mounted within the frame 1 comprises a double pump unit driven by an electric motor and having a larger capacity pump feeding the cylinders 9 and a smaller capacity pump feeding the cylinder 16. The output of the smaller capacity pump is connected to a pressure gauge 26, a H.P. relief valve 27 and solenoid valves 28, 29 connected respectively to the cylinder 16 and to a L.P. relief valve 30. On commencement of honing, the solenoid valve 28 is energized and pressure oil is supplied to the top of the cylinder 16. During the downward stroke the solenoid valve 29 is deenergized so that the oil pressure supplied to the cylinder 16 is determined by the L.P. relief valve 30. On completion of the downward stroke one of the trip members 11 actuates one of the limit switches 10 simultaneously reversing the direction of reciprocation of the tool 14 and energizing the solenoid valve 29 ; the L.P. relief valve 30 is thus taken out of circuit and the oil pressure supplied to the cylinder 16 during the upward stroke is determined by the H.P. relief valve 27. Another of the trip members 11 actuates another of the limit switches 10 at the end of the upward stroke to reverse the direction of reciprocation and de-energize the solenoid valve 29 for a further downward stroke.
Patent GB-998718-A (GB)
Title: Improvements in refrigerant compressors
IPC: F25B31/00
Filed: 1961-10-23
Abstract: 998,718. Refrigerant compressors. DUNHAM-BUSH Ltd. Oct. 23, 1961 [Oct. 24, 1960], No. 37883/61. Heading FIN. [Also in Division G3] A multicylinder refrigerant compressor 2, Fig. 1, has cylinders 16-20 discharging into a common header 21 and drawing from the crankcase 22. Each cylinder has a conventional automatic delivery valve 32 mounted within a head plate 32 and an annular inlet valve 44 controlling an annular passageway 42 in the cylinder liner 24. The inlet valve 44 of all but one cylinder, viz. cylinder 19 is automatically unloaded by a servomotor control system (see Division G3).
Patent GB-945036-A (GB)
Title: Improvements to garden hand tools
IPC: A01B1/20
Filed: 1962-10-09
Abstract: 945,036. Garden hand tools. F A. COOPER. Oct. 9, 1962, No. 38133/62. Heading A1B. A garden tool for weeding, thinning-out or digging comprises a central fixed tine 7 and pivoted outer tines 5 which are moved to enable plants or weeds to be gripped by means of gear sectors 9 engageable with rack 10 coupled by a pull rod 11 to a trigger handle. Two blades one on each side of the tines are connected to a hand grip 4 slidable on the handle shaft 3 so that the blades may be moved along the tines to dislodge weeds. The length of the handle shaft is adjustable and the tines may be detachable and provided with cutting edges so that the tool may be used for pruning or trimming. A fertiliser container may be attached to the handle so that fertiliser may be applied to the soil at the same time that digging is carried out. The tines may also be moved by a linkage mechanism arranged to lock the outer tines in their pivoted position.
Patent GB-1429627-A (GB)
Title: Production of vinyl halide paste-forming polymers
IPC: C08F2/22
Filed: 1972-08-16
Abstract: 1429627 Separating vinyl halide polymers from latices BP CHEMICALS INTERNATIONAL Ltd 24 July 1973 [16 Aug 1972 (2) 29 March 1973] 38199/72 38200/72 and 15167/73 Heading C3P A vinyl halide paste-forming polymer is produced by adding an alkaryl sulphonate, an alkyl ether sulphate, or sulphosuccinate emulsifier or a mixture thereof to a paste-forming vinyl halide polymer latex after polymerization, and isolating the polymer from the latex in the presence of said emulsifier. Preferred alkaryl sulphonates are alkyl benzene sulphonates in which the alkyl group is C 6-20 , such as octyl-, nonyl-, decyl-, or dodecyl benzene sulphonates. The alkyl ether sulphates may be made by the reaction of an alkanol with ethylene oxide followed by sulphonation; salts of such compounds may have the formula RO(CH 2 CH 2 O) n SO 3 Na where R is alkyl and n is an integer. Particularly preferred such compounds are alkyl ether sulphates having 6-22 carbon atoms per molecule. Preferred sulphosuccinates are esters of sulphosuccinic acid having 2-22 carbon atoms in each alkanol moiety in the molecule. The polymer may be a vinyl chloride homopolymer or copolymer with less than 20 wt. per cent of another copolymerizable monomer. In the examples PVC homopolymer latices are treated with commercially available emulsifiers selected from sodium dodecyl benzene sulphonate, ammonium dodecyl benzene sulphonate, sodium lauryl ether sulphate, sodium dioctyl sulphosuccinate and sodium di-t-decyl sulphosuccinate, and the polymers are separated by spray drying.
Patent GB-1202995-A (GB)
Title: An apparatus for multistage moulding of cups into an advancing thin metal strip, and a finished foil produced by the said apparatus
Inventor: KAUPERT GUENTHER
IPC: B31B50/59
Filed: 1968-08-12
Abstract: 1,202,995. Cupping metal foil. G. KAUPERT. 12 Aug., 1968 [22 Aug., 1967], No. 38418/68. Heading B6J. A line of cups is moulded into a thin metal strip 11a as the latter is advanced intermittently between a series of female moulds 1, 2, 3 and male moulds 4, 5, 8, 14. The moulds 1, 4 produce a deep cup as shown, and this crinkled by the mould 2 which has an irregular shape including a projection 6. The mould pairs 3, 8 produce a further moulding effect, and the moulds 14 are overlaid with a moulded plastic foil 11b, which is caused to adhere to the foil 11a at the portions between the moulds, the resulting cups being smooth inside and decoratively crinkled outside.
Patent GB-314045-A (GB)
Title: Improvements in isolating plugging-in boxes for electric power cables
IPC: H01R13/707
Filed: 1928-12-31
Abstract: 314,045. Woodworth, L. B., and Central Mining & Investment Corporation, Ltd. June 22, 1928, [Convention date]. Two-part couplings combined with electric switches. - A switch comprising a drum having contacts 33 that in the closed position connect together brushes 34, 34<a> is moved to the open position by a spring 38 and is held closed by a detent 58 that is controlled by a cam 55 on the locking shaft 48 of a plug coupling 13, the contacts 20 of which are connected to the brushes. 34a. In order to remove or insert the plug, the shaft 48 must be turned by a key placed on the square end 50 so that the half-round portion 52 of the shaft 48 clears the socket 13. The cam 55 in that position releases the detent 58 and allows the switch to open. The locking shaft 48 is turned by a spring 54 to its locked position when the key is removed to be used upon the squared end 47 of the shaft 32 to close the switch. The cover 3 can be removed only when the locking- arm 61, 62 of the trigger 58 disengages the lug 63, the switch then being free to open under the action of its spring. When the cover is removed the spring plunger 64 moves forward, locking the switch open, but the plunger can be depressed manually to release the switch for testing. The contacts 20 are mounted on a block 15 and shielded by an insulating casing 21 having slots 22 for the passage of the contacts carried by the plug. An earthing contact is attached at 19 to the casing 13. A dummy plug may be inserted to close the socket when the plug is disconnected. Specification 314,046 is referred to.