baber/WOPTO huggingface dataset:
Patent GB-340431-A (GB)
Title: Improvements relating to dye jigs
IPC: D06B3/32
Filed: 1930-01-31
Abstract: An automatic fluid-actuated drive-reversing gear for dye-jigs is provided with mechanism which ensures that the fabric to be dyed is moved through the dye vat at constant speed.  In unwinding fabric from the left hand beam 2 on to the right hand beam 2, the right hand beam 2 is driven at a diminishing speed by means of cones 62, 621 on a main driving shaft 61, a belt 63, and cones 64, 641 on a shaft 65, the shaft 65 being operatively connected to the drum shaft 9 which rotates the beams 2.  The cones are slidable on their shafts under the control of levers 83, 831 which close up the cones 62, 621 and open out the cones 64, 641 to reduce the speed of the shaft 65.  At their upper ends, the levers 83, 831 are connected to a left and right hand threaded shaft 81 adapted to effect the movement of the cones.  Toothed wheels 69, 691 on the shaft 9 drive a shaft 71 through ratchet gearing which ensures that the shaft always rotates in the same direction, and the shaft 71, through worm and bevel gearing, rotates a vertical shaft 78 carrying a bevel gear 79, the gear being <PICT:0340431/IV/1> slidable thereon by a lever 85 which in the position shown meshes the gear with a bevel gear 80 on the threaded shaft 81, the rotation of the drum shaft 9 thus varying the speed at which the shaft 65 is rotated.  A link 94 connects the lever 85 to a lever 96 adapted to be rocked when a piston 18 in a cylinder 17 is displaced consequent upon the emptying of the beam from which the fabric is being unwound, the rocking of the lever 96 withdrawing the gear 79 and bringing a similar gear 86 into mesh with the gear 80 to reset the cones.  The gear 86 is driven rapidly from the main shaft 61.  The movement of the lever 85 to displace the gear 79 takes place against the action of a spring 91 but the lever is kept displaced by a lever 100 carrying a roll 101 which engages behind a projection 102 on the link 94.  As the cones 64, 641 are reset in the position shown, a rod 104 secured at one end to the lever 83 pushes back the lever 100 until the roll 101 clears the projection 102 and allows the spring 91 to actuate the lever 85 and thus couple the control mechanism to the driving drum, the resetting having taken place while the advance cloth passed through the treating liquor.
Patent GB-723901-A (GB)
Title: Process of making fibrous webs
IPC: D21H23/00
Filed: 1952-02-08
Abstract: 723,901. Sizing paper pulp &c. INDUSTRIAL TAPE CORPORATION. Feb. 8, 1952 [Feb. 9, 1951], No. 3444/52. Addition to 723,869. Class 96. Natural or deproteinized rubber latex, or rubber-like polymers, e.g. vinyl, butyl, acrylic, or copolymers, butadiene-styrene or -acrylonitrile, Neoprene, polysulphide rubber, polyethylene, polystyrene or polytetrafluorethylene &c., e.g. with rosin, shellac, wax, alkyd resins or natural gums, of particle size less than 5 microns, are precipitated on to the fibres of paper pulp by adding 1 to 2000 parts per 1,000,000 of a cationic, water-soluble, N-basic organic polymer salt, e.g. a polymerized primary, secondary or tertiary amine or a quaternary ammonium salt having groups which ionize in water with charges opposite to those on the size dispersion which is thereby precipitated, and the sized pulp is formed into paper or fibreboard &c. The N-basic polymer may be a polymerized aldehyde reaction product of guanidine carbonate, a polyethylene imine salt, or the reaction product of a vinyl pyridine polymer with an alkyl halide, e.g. butyl bromide &c.
Patent GB-1189140-A (GB)
Title: Improvements in and relating to Tape Players
IPC: G11B23/06
Filed: 1967-09-25
Abstract: 1,189,140. Feeding record tapes. AUTOMATIC RADIO MFG. CO. Inc. 25 Sept., 1967 [17 Feb., 1967], No. 3581/69. Divided out of 1,189,139. Heading G5R. An aperture 33 in the chassis plate 13 of a tape player having no pinch-roller engages latching means 32 on an adapter 15 carrying a pinch-roller 11 which is inserted into a cassete as described in Specification 1,189,139.
Patent GB-698929-A (GB)
Title: Improvements in or relating to ophthalmic mountings
Inventor: SPLAINE EDWARD MICHAEL
IPC: G02C1/04
Filed: 1952-02-11
Abstract: 698,929. Spectacle frames. AMERICAN OPTICAL CO. Feb. 11, 1952, No. 3602/52. Class 97 (i). A spectacle frame comprises a supporting structure of a bridge, portions extending therefrom and bearing temple supports, and separate rims encircling each lens, each rim being divided and provided at opposed ends of the division with lugs perforated to receive connection means to hold the lugs together, each rim being held in the supporting structure by means adjacent the upper lug and means on the opposite side of the rim so that the latter is engaged within a groove of the structure and so that, when in position, the connecting means can be withdrawn for the replacement of the lens. As shown in Fig. 3 the structure includes a bridge 17 and extending portion 18, both of metallic or non-metallic material, having a temple supporting end 19. The lens-encircling rim 25, of metal or plastic, has lugs 28 held together by a screw 27, the upper lug 28 having a projection 37 adapted to rest on a shelf 35<SP>1</SP> provided by a hinge-plate 35 projecting into a recess 34 of the portion 18. At its opposite side the rim 25 bears a portion 31, Fig. 11, connected to an arm 32 pivotally bearing a nose-pad 33. When the lugs 28 have been inserted in the recess 34 the upper portion of the rim 25 is located in a groove 23 of the member 18 and the portion 31 is secured to a depending portion 20 of the structure by a screw 39, Fig. 11. The screw 27 is thus accessible when the rim is in position. In a modification a slot is provided between the lugs 28 in which the strip 351 may be clamped by the screw 27.
Patent GB-909862-A (GB)
Title: Improvements in or relating to chutes, particularly charge chutes for nuclear reactors
Inventor: BELLINGER RONALD
IPC: G21C19/02
Filed: 1958-02-04
Abstract: 909,862. Servicing reactors. STRACHAN & HENSHAW Ltd. Jan. 8, 1959 [Feb. 4,1958], No. 3698/58. Class 39 (4). A reactor servicing shoot has upper, middle and lower coaxial sections 2, 4, 6 and a movable portion 38 which may be laterally displaced by a link 44 from a position within the section 6 to a position as shown in Fig. 5, for servicing a channel not in alignment with the shoot body, a pair of pulleys 26, 32 being mounted on the section 6 such that when the shoot is inserted through the standpipe 7 the pulleys lie within the shoot, Fig. 2, whereas when the section 6 comes to rest in the reactor the pulleys move through openings in the shoot wall for guiding the hoist rope 58. The shoot section 2 contains a sleeve 10 mounted for sliding movement limited by the engagement of blocks 14 on the sleeve with the section 2 and thus when the shoot is lowered into the reactor by a grab engaging a lip 12 on the sleeve the latter is held at its upper position relatively to the section 2. A pair of links 16 are connected to the sleeve 10 and mounted for longitudinal movement in guides 21 in the section 6, Fig. 6, the links 16 being connected at 17 to cranked links 18 pivoted at 19 to a yoke 20 carrying the pulley 26. The pulley 32 is mounted on arms 34 pivoted at 36 to the movable shoot section 38, blocks 54 on the arms 34 being engaged by blocks 56 on the links 16 whilst the shoot is being lowered. When the weight of the shoot is removed from the sleeve 10 upon the section 6 coming to rest in the reactor the sleeve 10 moves downwardly in the shoot whereby the links 16 also move downwards and the links 18 rotate the yoke 20 about the pivot 22 so that the pulley 26 moves through an opening 28 in the shoot; also, the blocks 56 move clear of the blocks 54, Fig. 6, and permit the pulley 32 to move through an opening 57 under the action of gravity. A fuel element grab may now be lowered into the shoot portion 38 and the link 44 may be actuated as disclosed in Specification 874,222, to move a link 40 pivoted at 42 to the portion 38 whereby the latter is radiused and the arms 34 are held in position by the engagement of rollers 50 with blocks 52.
Patent GB-290343-A (GB)
Title: Improvements in or relating to sheet piling
IPC: E02D5/04
Filed: 1927-02-09
Abstract: 290,343. James, J. E., and Soutter, J. W. P. Feb. 9, 1927. Piling.-Sheet piling of angle or Z-section is made with interlocking hook-section edges on the flanges. Fig. 1 shows a Z bar with hook-edged flanges b, c, such that if the edge b of one bar be engaged with the edge c of an adjacent bar, the parts f, g abut, and the surfaces d, e are flush with one another, as shown in Fig. 4. Such jointing may be continued to form straight or stepped walls. The surfaces d, e may, however, be slightly inclined to one another to form piling of other forms. The rib o, Fig. 1, may be omitted. A corner post of the section shown in Fig. 2 may be used to connect a number of radiating bars.
Patent GB-706071-A (GB)
Title: Means for stabilising the speed of an electric motor
Inventor: CHAMBERLAIN NORMAN HENRY
IPC: H02P7/26
Filed: 1952-02-12
Abstract: 706,071. Automatic speed control systems. T.M.M. (RESEARCH), Ltd. Feb. 3, 1953 [Feb. 12, 1952], No. 3727/52. Class 38 (4) An electric motor M drives an obturator to produce pulses from a photo-electric cell PC whose frequency is proportional to speed and from which is derived a direct voltage which varies inversely with speed ; this voltage and a reference voltage are applied to the control electrode of a valve V6 supplying current to the motor, so that the current through the valve varies as the direct voltage from the photo-electric cell. The pulses from the cell PC are applied to a transitron trigger circuit V1, V2 to produce square positive pulses of constant amplitude and duration which are amplified and reversed at V4 and applied over a D.C. inserting circuit V3 to cathode follower V5 and averaging circuit R14, C6 to produce a direct voltage across C6 which increases with decreasing motor speed and viceversa. This voltage is applied to the grid of a gas-filled rectifier V6 feeding the motor M. The datum motor speed is set by potentiometer R17. Condenser C7 and resistance R16 constitute an anti-hunting circuit; no p.d. normally exists across R16, and condenser C7 charges to the p.d. between the motor field and armature coils ; if the speed abruptly increases, the charge in the potential of C7 alters to produce a p.d. across R16 to change the anode current of V6 and reduce the rate of charge. The circuit is adapted to control an electrically operated spinning mule by the provision of relays (not shown) actuating contacts B2, B8; E3 and S3. One relay opens contact B2 and closes contact B8 to accelerate the motor to its maximum speed. Another relay closes E3 (B8 being open and B2 closed) to stop the motor, and an emergency stop relay opens S3 to stop the motor.
Patent GB-330582-A (GB)
Title: Improvements in or relating to the forming of sheet metal
IPC: B21D53/00
Filed: 1928-12-10
Abstract: 330,582. White, A. E., (Budd Manufacturing Co., E. G.). Dec. 10, 1928. Divided on 302,723, under which a Specification was laid open to inspection under Sect. 91 of the Acts, Dec. 22, 1928. Road vehicles.-A unitary stamping to form the wind shield, cowl and front posts of a vehicle body, is made by flash welding two metal sheets edge to edge at 22, Fig. 2, and then die stamping the joined sheets to a substantial extent through the line of the weld to complete the article shown in Fig. 3. One of the sheets may be preformed prior to welding. Specification 302,723 is referred to.
Patent GB-198407-A (GB)
Title: Improvements in or relating to the propulsion of aircraft
IPC: B64D35/04
Filed: 1922-11-08
Abstract: 198,407. Bishop, P., and Hunn, A. E. M. Nov. 8, 1922. Propelling.-In an arrangement in which the axis of the engine crankshaft is disposed at right angles to the line of flight and a propeller is driven from each end of the crankshaft, a flexible coupling is incorporated in the transmission system. In the arrangement shown, the engine A of an aeroplane is located in a central position and its crankshaft B is extended at both ends through flexible joints D to bevel gearing E, F,. housed in casings G attached to the framework of the aeroplane. Clutches C may also be included in the transmission for the independent control of the propellers.
Patent GB-996551-A (GB)
Title: Improvements in or relating to boilers for heating water or other liquid
IPC: F24H1/28
Filed: 1963-01-31
Abstract: 996,551. Hot water boilers. H. VIESSMANN. Jan. 31, 1963 [Feb. 1, 1962], No. 3994/63. Heading F4A. A horizontal cylindrical hot-water boiler with two concentric water jackets 9, 10 spaced apart by an annular chamber 13 and surrounding a cylindrical combustion chamber fired by a burner disposed in an aperture 12, comprises a lower interconnecting passage 7 between the jackets 9, 10, co-axial with the return-flow or cold-water inlet 1 to the outer jacket 9 directly beneath it, with a flared-out lower end 3, and one or more upper passages 5, 6 of at least twice the cross-sectional area of the lower passage and displaced longitudinally in relation to the lower passage 7. The exhaust gases circulate around the inside walls of the inner jacket 10 before passing through the annular chamber 13 to an exhaust duct 14.
Patent GB-1025079-A (GB)
Title: Method of and apparatus for a flocculating agent with a sludge being centrifuged
IPC: C02F1/38
Filed: 1964-01-30
Abstract: 1,025,079. Centrifuge. BETEILIGUNGSUND PATENTVERWALTUNGSGESELLSCHAFT m.b.H. Jan. 30, 1964 [Jan. 31, 1963], No. 4034/64. Heading B2P. Sludge enters a centrifuge drum 1 by means of a pipe 3 and acceleration cone 2, and a flocculating agent is added, by means of coaxial pipe 4, to sludge which has already been at least partially accelerated to maximum angular velocity. The flocculating agent effects conglomeration of small sludge particles to facilitate centrifugal separation. Both pipes 3 and 4 are independently axially movable to select the zones of the drum or cone where sludge and agent are added. Drum 1 and surrounding bowl 5 rotate at different speeds so that the external screw on drum 1 pushes solid material leftwards to outlet 6, while separated liquid flows over a weir to outlet 7, the holes in drum 1 allowing both solids and liquid to enter the annular space between drum 1 and bowl 5.
Patent GB-1463463-A (GB)
Title: Automatically locking slider for sliding clasp fastener
IPC: A44B19/30
Filed: 1975-01-30
Abstract: 1463463 Locking slider for sliding clasp fasteners YOSHIDA KOGYO KK 30 Jan 1975 [7 Feb 1974] 4077/75 Heading E2S In a sliding clasp fastener, of the kind comprising a pull tab 11, a body 10 and a locking means, the body including top and bottom wings 14, 15 interconnected by a web 16, the locking means comprises a locking leaf spring 17 generally arranged longitudinally over the top wing 14 and including a neck portion 20 directly overlying the top wing the neck portion 20 being connected to a fold 21 via at least one curved portion 22 at one end of the spring which end is arranged at the front end of the slider body 10 the fold 21 being held in parallel spaced relationship to said neck portion, a pair of arms 23 extending downwardly from both lateral edges of said fold 21 into abutting contact with said top wing 14, a pair of flanges 24 projecting laterally outwardly from parts of the bottom edges of said arms respectively and a pair of spring retainers 18 on the top wing being adapted to engage said respective flanges 24 of said arms 23 and hence to retain the locking leaf spring 17 on the slider body 10. The locking means also essentially includes a locking pawl 26 at the other end of the leaf spring which normally projects into the guide channel in the slider body through an aperture 27 formed in the top wing, a raised portion 28, between the neck portion 20 and the locking pawl 26, and which is adapted to be surrounded by the pull tab in such a manner that, when a pull is exerted on the pull tab the leaf spring is generally raised away from the slider body whereby the locking pawl retracts away from the guide channel in the slider body. A further essential feature comprises stop means which is adapted to limit the retracting motion of the locking pawl 26 away from the guide channel, the stop means including a stop 19 which projects upwardly from the top wing 14 and which is relatively loosely received in an aperture 25 formed in said locking leaf spring adjacent the other end thereof. The pull tab includes a relatively flat pin 29 which is connected between the bifurcated end 30, 30 of the tab.
Patent GB-880709-A (GB)
Title: An electric spark machining apparatus
IPC: B23H1/02
Filed: 1958-02-07
Abstract: 880,709. Removing metal by spark erosion. nSTOUE, K. Feb. 7, 1958 [Feb. 7, 1957; April 24, 1957], No. 4119/58. Class 83 (4). In a spark erosion apparatus whose electrode 2 and workpiece 3 are connected across a condenser 1 charged from a rectifier 5, the latter is supplied with alternating current from a source 8 through a variable impedance means 6 controlled in dependence upon the spark voltage and/or current. In a three-phase arrangement the alternating current is fed through a transformer 7 and each phase is connected through a separate saturable core reactor 6 to a full or half-wave rectifier 5 of the electronic or selenium type. An inductor 4 may be inserted between the rectifiers 5 and condenser 1 to prevent any charge stored in the rectifier from being applied to the condenser at the beginning of the charging period. The reactors 6 have bias windings 10 coupled in series and supplied from a D.C. source 12 through variable resistor 13, and control windings 11 also coupled in series and connected to the workpiece 3 and the output terminal of the rectifiers 5 so as to vary the flux in the reactors with the spark current. The electrode 2 is secured in a holder 25 on a vertical spindle 24 adjusted by a neversible motor 29, the workpiece 3 is placed in a bath 18 containing dielectrical fluid. In another embodiment, Fig. 2 (not shown), for single-phase working, a saturable core reactor may be inserted between the source 8 and a transformer feeding the rectifier or alternatively between the transformer and rectifier ; its bias winding 10 is supplied from the output terminal of the rectifier. In another embodiment, Fig. 5, the variable impedance comprises an electrolytic capacitor 30 whose capacitance is varied by an electromagnet 31 connected across the main condenser. In a further embodiment, Fig. 6, the impedance comprises a pair of triodes 32. 33, whose grids are connected across the primary of a transformer 34 and whose cathodes are connected across its secondary; centre-tappings on the primary and secondary are connected through a bias source 35 to the main condenser. Semi-conductor devices may also be used as the variable impedance means.
Patent GB-894407-A (GB)
Title: Improvements in or relating to reactor pressure vessels
Inventor: STURLEY GEORGE WILLIAM
IPC: G21C11/08
Filed: 1959-02-06
Abstract: 894,407. Reactor pressure vessels. BABCOCK & WILCOX Ltd. May 6, 1960 [Feb. 6, 1959], No. 4220/59. Class 39(4) The upper part of a nuclear reactor pressure vessel is provided with thermal insulation at its inner surface consisting of alternate layers of sheet metal and expanded metal, both of stainless steel. The insulation also covers the surfaces of the charge and control rod tubes which penetrate into the pressure vessel. As shown, the tube 55 is welded into the pressure vessel at 6 and is encircled by the insulating sleeve 12. The latter is formed of a backing sheet 7 and insulating layers 9, 10. Buckling of the insulating layer is prevented by the L- shaped supports 30. Insulating flange 13 is bolted to the pressure vessel and welded to 12 at 32. The cover plate 33 is bolted to 55 by bolts 36 and welded to sheet 7. The gap between the charge tube 40 and tube 55 is closed by ring 41 secured by bolt 42. Specification 891,353 is referred to.
Patent GB-865698-A (GB)
Title: Process for the extraction and recovery of aromatic hydrocarbons from a liquid hydrocarbon mixture
Inventor: REMAN GERRIT HENDRIK
IPC: C10G21/12
Filed: 1959-02-06
Abstract: Aromatic hydrocarbons are recovered from hydrocarbon mixtures by introducing the mixture into a counterflow multistage extraction system operated at 140-170 DEG C and employing a solvent boiling in the range of 225-295 DEG C. and containing dissolved water in an amount of not more than 2% by weight; cooling the solvent-extract phase by at least 15 DEG C to 115-150 DEG C; introducing the extract without appreciable flash vapourisation into a stripping zone operated at at least 1,5 atmospheres absolute, a top temperature of 115-150 DEG C and a bottom temperature of at least 165 DEG C; condensing the vapours, removing all water separating as a separate phase and recycling the remainder to the extraction system either at the end where the extract is withdrawn and/or at an intermediate point; and distilling the bottoms from the stripping zone at less than 0,5 atmosphere absolute and a bottom temperature of at least 145 DEG C. and at least 10 DEG C lower than the bottom temperature of the stripping zone.  The solvent may be diethylene and/or dipropylene glycol or sulfolane.  The process is particularly suitable for catalytic reformates having a final boiling point not higher than 220 DEG C and a lower cutting point about 100 DEG C.  The volumetric ratio of solvent to hydrocarbon may be between 3:1 and 8:1 and the ratio of top product from the stripping zone to hydrocarbon feed may be between 0,2 and 0,7:1.  The extraction may be effected in a column containing packing or sieve plates, a rotating disc contactor or a number of mixer-settler units, the number of theoretical stages being at least 5.  The feed may be introduced at the first or second theoretical stage.  Top product from the stripping zone is also preferably introduced at the first or second stage.  The pressure in the stripping zone, and the temperature of the feed to it, should be regulated so that the weight ratio of vapour in the extract to fresh feed to the extraction system is below 1:10 and preferably no vapour is present.  The difference between top and bottom temperatures in the stripping zone is preferably at least 40 DEG C, maintained by a reboiler.  The bottoms from the stripping zone is distilled to separate hydrocarbons and solvent which is recycled to the extraction using live steam.  Specification 739,200 is referred to.