baber/WOPTO huggingface dataset:
Patent GB-852609-A (GB)
Title: Apparatus and process for casting film
IPC: B29C48/08
Filed: 1958-09-29
Abstract: <PICT:0852609/IV(a)/1> <PICT:0852609/IV(a)/2> In a process for casting cellulose film in which a film forming solution is extruded into a liquid coagulant, a thin layer of the coagulant is conveyed over a downwardly inclined tray at a speed controlled by the inclination of the tray and the extruded film is continuously drawn over and in contact with the layer of a coagulant at a speed independent of the speed of the layer. Apparatus for carrying out such a process may comprise a vessel 23 for coagulant liquid 13, a smaller vessel 14 mounted above the vessel with means for supplying coagulant thereto, e.g. inlet pipes 15, 16 connected to reservoirs 17, 18 means disposed above the smaller vessel for extruding a film forming solution below the surface of liquid in the smaller vessel, a slot 21 in the bottom of the smaller vessel to permit passage of the film therethrough, a downwardly declined tray 22 depending from and integral with the slot for conveying liquid and directing the liquid and the film into the vessel and means independent of the flow of liquid down the tray or through the vessel to draw the film from the vessel e.g. guide rolls 24, 25, 26 and drive rolls 27, 28. Preferably the extension means is so disposed with respect to smaller vessel 14 that free access of coagulant to both sides if the film is permitted.  Baffles 19 and 20 may be provided in smaller vessel 14 to minimise turbulence of coagulant in the region of extrusion. The distance between the extrusion means and slot 21 is preferably less than 3 inches.  The angle of tray 22 which may be varied is preferably such that the rate at which coagulant descends from smaller vessel 14 into vessel 23 is less than the rate of descension of the film.  As shown in Fig. 2, the film having descended tray 22 may be drawn away on an endless belt 29 in combination with guide rolls 31, 32 and drive roll 30.  Preferably the upper rim of belt 29 is slightly above the surface of coagulant contained in vessel 23, but may alternatively be positioned up to 3 inches below the surface. Belt 29 may be driven to convey coagulant on its upper run at a speed less than the drawing speed of the film.  Baffles 34, 35 and 39 may serve to minimise turbulence in vessel 23.  In an example viscose comprising 9% cellulose and 5,2% sodium hydroxide is cast using the modified apparatus of Fig. 2 in which vessels 14 and 23 contain coagulant containing 12% H2So4 and 18% Na2So4.  The angle of tray 22 is arranged to convey coagulant at approximately the same speed of draw off of film i,e, 150 yards per minute.  The film may pass on to purification stages e.g. bleaching and softening treatments. Specifications 211,446 and 852,614 are referred to.
Patent GB-603622-A (GB)
Title: Improvements in and relating to transmission cables
IPC: D07B1/22
Filed: 1945-11-20
Abstract: 603,622. Ropes. SALVANS, J. F. Nov. 20, 1945, No. 31154. Convention date, Aug. 1. [Class 109] In a square-section cable of eight strands 1, with or without an additional core strand, each strand is composed of a central nucleus 2 of parallel threads, a covering of helically wound threads 5, and a second covering of oppositely helically wound threads 6. Each of the threads of the nucleus and coverings comprises in turn a core of parallel threads 3 covered with helically wound threads 4. The strands are braided or plaited together to form a substantially unstretchable square-section cable. The threads may be made of various vegetable textile fibres, such as cotton, flax, hemp, sisal, manila hemp, or agave fibres. Flax is exemplified for the threads 3 covered with cotton threads 4.
Patent GB-975319-A (GB)
Title: Improvements in and relating to welding compositions
IPC: B23K35/362
Filed: 1961-08-31
Abstract: A method for producing a welding flux composition comprises bonding a metallic deoxidizing agent (e.g. Fe-Si, Si-Mn or a Fe-Al and/or Si alloy) with a non-metallic carrier (e.g. MgO, Al2O3 or CaF2) to give a dry agglomerate with a specific gravity about equal to that of the basic welding composition, which is then dispersed in the basic welding composition. The bonding agent may be dextrose, corn starch, Portland cement or sodium silicate.  A basic flux composition prior to addition of the prebonded additive comprises: <TABS:0975319/C6-C7/1> The prebonded additive is dried, crushed and sized and may then be mixed with the basic composition by dry blending or it may be added to the molten basic flux as a late furnace addition, followed by casting, drying, crushing and sizing to form the final product.  The mixture comprises 85 - 98% of the basic composition and 2 - 15% of the prebonded additive. An example of a final product is: .MnO.38.0% .SiO2.38.0% .Al2O3.4.0% .CaF2.3.7% .MgO.5.0% .FeO.1.1% .CaO.5.0% .FeSi.4.5% .Na2O.0.7%
Patent GB-978114-A (GB)
Title: Improvements relating to toy guns
Inventor: RODEN JOSEPH WILLIAM GEORGE
IPC: F41C3/10
Filed: 1961-08-31
Abstract: 978,114. Miniature ammunition. CRESCENT TOY CO. Ltd. Oct.16, 1962 [Aug. 31, 1961], No. 31391/61. Heading F3A. [Also in Division A6] A toy pistol (see Division A6) is arranged to be used with explosive capsules in the form of a short cylinder 1 closed at one end 2 and containing a small quantity of explosive 3.
Patent GB-1079662-A (GB)
Title: Flow control apparatus for fluids
IPC: D21F1/02
Filed: 1964-08-04
Abstract: 1,079,662. Headboxes. FITCHBURG PAPER CO. Aug. 4, 1964 [Aug. 2, 1963], No. 31481/64. Heading D2A. Apparatus for the uniform distribution of the fibres in paper pulp stock in a papermaking machine comprises a member 30 over which the stock flows, the, surface of the member being provided with a repetitive pattern 34 of protuberances-for example in the form of fish scales or shingles-each having a dropoff edge facing downstream, and side portions for directing the stock into a series of crossing streams across the member 30. This criss-cross flow distributes the fibres evently on the wire 32 and reduces the amount of carrier water required. The member 30 which may be flexible and be of metal or plastics, may form the slice 22 or, as shown, join it to the wire. Protuberances may also be formed on partitions 18 and 21.
Patent GB-752774-A (GB)
Title: Improvements in or relating to the production of envelopes for gas-discharge lamps
IPC: C03B23/047
Filed: 1954-11-01
Abstract: 752,774. Glass manufacture. HERAEUS QUARZSCHMELZE GES. Nov. 1, 1954 [Oct. 31, 1953], No. 31502/54. Class 56. 'In the production of quartz glass envelopes for discharge tubes, a halogen, or a halogen-yielding compound, is applied to the quartz at a high-temperature zone, the halogen acting to combine with impurities, e.g., sodium, magnesium, calcium, barium, aluminium, copper, zinc, titanium, or iron, which normally cause ageing, or devitrification, in the envelope, the resulting volatile halides leaving the envelope which becomes substantially pure silica. Some silicon halides remain in the melt but have no deleterious effect. The heating of the quartz may be by electricity, or combustion. In Fig. 1, the process is shown as applied to the building up of a quartz envelope 1 upon a rotary core, the quartz grains being supplied to the core by a funnel 4 fed by a hopper and worm. Heat is supplied to the muffle by an oxy-hydrogen burner 5. It is necessary for the halogen, which is preferably chlorine, to be brought intimately into contact with the melt, and to ensure this, the chrome is projected against the work at substantially the same velocity as the flame gases. Chlorine is thus supplied to the burner from a tube' 9 and is accelerated by an oxygen or air blast 10. Care must be taken that the chlorine content of the gases, including the flame gases, applied to the melt, exceeds the free hydrogen content, so that undesirable hydrogen in the melt is eliminated as HC1. The temperature at the melting and reaction zone is 1600‹C.-2200‹C, preferably about 1900‹C. There is no limit to the excess of chlorine that may be supplied, except the necessity for heating it to this temperature, and in some cases it may be necessary to preheat the chlorine. The oxygen blast 10 may be omitted, the chlorine being simply entrained by the oxygen and hydrogen from the supplies 6, 7. In the case of an electric furnace, the core is rotated in a muffle and the chlorine is projected against the melt by a pipe which passes vertically down through the supply passage for the quartz grains. A gas velocity of 120-160 metres per second is mentioned. The activity of the chlorine is enhanced by the simultaneous supply; through a similarly disposed pipe, of a relatively small quantity of hydrogen. 'The chlorine treatment may be applied during the working of quartz blanks, e.g., the drawing of tubes for envelopes. The effect produced is only a surface effect, but devitrification of discharge tubes is a result of surface thermal or chemical stresses, and the chlorine surface treatment is advantageous. Instead of starting with silica in the formation of quartz tubes, silanes, which react in the presence of steam or oxygen to form silicon dioxide, may be used. Instead of supplying pure chlorine to the process hydrochloric acid or silicon chlorides or halides may be supplied. Specification 733,978 is referred to.
Patent GB-172847-A (GB)
Title: Improvements in or relating to knitted fabrics and to the means and method of producing the same
IPC: D04B15/54
Filed: 1920-11-08
Abstract: 172,847. Redfern, Rhead, & Co., Ltd., and Rowley, J. W. Nov. 8, 1920. Drawings to Specification. Neck-ties.-Horizontally striped tubular seamless fabric for neck-ties is knitted in one continuous automatic operation, and the neckband is shaped by reducing the number of threads in knitting, the omitted threads floating on the inside of the tube.
Patent GB-225076-A (GB)
Title: Improvements in and relating to apparatus used in the aerating and circulating of sewage and other foul waters
IPC: C02F3/16
Filed: 1923-12-17
Abstract: 225,076. Mills, M. W., and Bolton, J. Dec. 17, 1923. Aerating; gravity-separation apparatus. - In apparatus comprising an aerating tank and a settling-tank sludge is returned from the bottom of the settling-tank to the aerating tank by means of rotary blades fixed on or arranged within a cone or by means of a revolving screw propeller. Sludge is lifted from the bottom of the conical settling-tank a, Fig. 1, through a pipe c to a casing b by blades on a cone e fixed on a shaft e<1> rotated by friction gear f. The sludge is conveyed from the casing b to the aerating tank by an inclined trough h<1>. The liquid from the aerating tank enters the settling tank through a pipe h<2> and an open-ended deflecting cylinder i. A modification is described in which the blades instead of being attached to a cone are suspended by rods from a. plate secured to the rotating shaft. Fig. 4 shows a further modification applied to an aerating tank as described in Specification 166,385. The sludge is drawn from the settling-tank a through a pipe o by a propeller screw k arranged on the same axis as a rotary cone m which circulates the liquid in the aerating tank n drawing it up a pipe p and distributing it as a film over the surface.
Patent GB-1276154-A (GB)
Title: Improved polyester polymerization process
IPC: C08G63/00
Filed: 1969-06-23
Abstract: 1276154 Polyester production MONSANTO CO 23 June 1969 [26 June 1968] 31628/69 Heading C3R A high molecular weight polyester is produced by partially esterifying a dicarboxylic acid with a glycol to form a prepolymer having a molecular weight of 500 to 10,000 and a free carboxyl end group concentration of between 1À6 Î 10<SP>5</SP> M n <SP>-0.98</SP> and 6À7 x 10<SP>6</SP> M n <SP>-1.35</SP>, where M n  is the number average molecular weight, and then polymerizing this prepolymer by transesterification and further esterification in a finisher. The preferred ratio of carboxyl to hydroxyl groups is from 0À12 to 1 to 0À46 to 1. The dicarboxylic acid may be terephthalic, isophthalic, sebacic, adipic, pcarboxyphenylacetic, succinic, 3-alkyl 4-(betacarboxy-ethoxy)-benzoic, oxalic, glutaric, pimelic, suberic or azelaic acid, p-carboxyphenylacetic, or p-carboxyphenoxyacetic, -propionic, -butyric, -valeric, -hexanoic or -heptanoic acid, or p,p<SP>1</SP>-dicarboxy biphenyl, p,p<SP>1</SP>-dicarboxyphenylcarbanilide, p,p<SP>1</SP>-dicarboxyphenylthiocarbanilide, p,p<SP>1</SP>-dicarboxydiphenylsulphone, a p,p<SP>1</SP>-dicarboxyldiphenylalkane (C 1-8 ), a p,p<SP>1</SP>- dicarboxydiphenoxyalkane (C 2-6 ) or an acid of formula where n is an integer of 1 to 4. Preferably the acid is terephthalic and the glycol is ethylene glycol.
Patent GB-1161888-A (GB)
Title: Improvements relating to Combination Locks.
Inventor: JANDT ERNST
IPC: E05B37/00
Filed: 1966-07-14
Abstract: 1,161,888. Keyless locks. NORDDEUTSCHE MENDE RUNDFUNK K.G. 6 Jan., 1967 [14 July, 1966], No. 31671/66. Heading E2A. To unlock a keyless lock, a knob is actuated through a series of steps so as to cause relative movement between a feeler and a member in which a twisting passageway has been preset in accordance with a code, and if the feeler negotiates the passageway successfully, the feeler is able to actuate a coupling arrangement between the knob and a boltoperating shaft so that the bolt may be withdrawn. On the other hand, if the feeler, which is frictionally mounted in a balanced state, engages an obstruction marking out the passageway, it is rooked to a position in which it is ineffective to actuate the coupling arrangement. As shown, the feeler 5 is flexible and is pivoted at its centre of gravity in a fixed member 4. When the lock is assembled, the feeler 5 is in the position shown in dotted lines. The passageway is set up on a rotatable carrier 2, 3 geared to the knob 7. The carrier carries radial plates 6 having pivots in a groove 3b moving frictionally in slots and pre-settable by a pin 24 so that the outer end of each is moved to leave a passageway for the feeler 5 to one side or the other. The knob 7 and the carrier 2, 3 are coupled by flanges 10 for axial movement against the action of a spring 25, but this axial movement can only take place with the shaft 8 of the knob 7 in certain positions determined by a detent arrangement 12, 13, owing to a polygonal piece 14 on the shaft which passes through a correspondingly shaped fixed aperture 15. By rotary and axial movements of the knob 7, the carrier 2, 3 may thus be stepped round and moved axially so that the plates 6 will not strike the feeler 5. During the first step movement, a pin 26 on the carrier cams the feeler 5 into its effective position and after a completed successful movement of the carrier, the feeler 5 is in line with the end of a slide 21. If the knob 7 is then depressed, the carrier is moved to the right but the slide 21 is held stationary by the feeler 5 so that a cam surface 21 a thereon releases an annular spring 18, and a pin 19 through which it passes, to cause the end of the pin to snap into a groove 20 in the bolt-operating shaft 17, which can then be operated by rotation of the knob 7. On release of the knob 7, the carrier returns to the axial position shown and the pin 19 is lifted by the cam 21a since the slide 21 is held against movement by the casing 1. The carrier 2 is located in its initial position by a detent 22 and if it is rotated from that position in the wrong direction, a plate 6a fixed in its central position at once moves the feeler 5 to its ineffective position. The knob 7 may have a magnetic detent arrangement, Fig. 3 (not shown), in place of the spring detent 12, 13 and the carrier may have radially-settable pins, Fig. 2 (not shown), in place of the plates 6. Instead of actuating a bolt the lock may control electrical switch contacts.
Patent GB-617727-A (GB)
Title: Improvements in building blocks
IPC: E04C1/39
Filed: 1946-10-25
Abstract: 617,727. Building blocks. SPARKES, R. C. Oct. 25, 1946, No. 31719. [Class 87(i)] An open-ended sheet metal building unit 1 is provided with corrugated top, bottom and sides a whereby the unit may be bent to arcuate form or adjusted in length. Apertures 3 may be formed in the top and bottom and small perforations in the sides. Half and quarter units are provided.
Patent GB-1119454-A (GB)
Title: Vehicle lamps
Inventor: CRANMORE JOHN WEBSTER
IPC: B60Q1/068
Filed: 1966-07-15
Abstract: 1,119,454. Mounting vehicle lamps. JOSEPH LUCAS (INDUSTRIES) Ltd. 29 June, 1967 [15 July, 1966], No. 31878/66. Heading F4R. A vehicle lamp 11 is adjustably secured to a support member 10 by means comprising a screw 18 rotatably held by the lamp bezel 12, a nut 19 engaging the screw and carried by a leaf spring 21 secured at its other end to the support member, and a lever 26 pivoted to the support member and adapted to flex the spring thereby tilting the lamp. The lamp tilts about a horizontal axis formed in the lower portion (not shown) of the lamp by the line joining the two other points at which the bezel is attached to the support member, one of these attachments being a rubber bush and the other an adjustable screw. The spring 21 is stepped away from the support member at 25 and is biased towards a flange 10a of the support member at the end which carries the nut 19, the lever 26 having a portion 26a which moves between the spring and the flange to vary the distance between them and a ramp (not shown) which engages the opposite side of the spring so that the latter is positively held. The lever also has a latch portion 28 which holds the spring in contact with the flange 10a in the normal position to prevent movement of the lamp due to vibration. The initial position of the lamp may be adjusted by means of the screw 18, and indexing means may be provided for retaining the lever 26 in its required position. The nut 19 extends through an aperture 23 in the flange 10a and its range of movement relative to the flange is limited by a shoulder 24.
Patent GB-1442153-A (GB)
Title: Slatted conveyor
IPC: B65G17/40
Filed: 1973-07-04
Abstract: 1442153 Endless conveyers H S MULLER 4 July 1973 [6 July 1972] 31887/73 Heading B8A The slots 1 of a slotted conveyer each comprises three hollow chambers and are detachably attached to a travelling support 2 such as an endless belt by means of press studs 3, the gap between adjacent slots 1 being covered by bridging elements 6 which extend over substantially the width of the conveyer and are located in slots 5 formed in the adjacent chambers of the slots, bars 7 at the ends of the bridging elements preventing the elements 6 from sliding out of the slots 1 in the conveying direction. In the embodiment of Fig. 2 (not shown) the bridging elements are in the form of a corrugated flexible strip (8), while in the embodiment of Fig. 3 (not shown) each slot (1b) is formed with a slot (5b) on one side thereof and a flexible extension (10) on the other side thereof provides the bridging element with the adjacent slot. In the embodiment of Fig. 4 (not shown) each slot (1c) comprises two hollow chambers and an inclined wall of each slot forms the bridging element.
Patent GB-1126124-A (GB)
Title: Improvements in or relating to recording and/or play-back apparatus
IPC: G11B27/34
Filed: 1966-07-15
Abstract: 1,126,124. Tape & wire recorders. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 15 July, 1966 [19 July, 1965], No. 31914/66. Heading G5R. A recording and/or play-back apparatus for recording on tape or wire includes a counter in which a shaft 1 has a wheel 3 driven by a belt from a wheel rotating with the record carrier, and a worm 4 from which an index 5 is supported rotates with and is slidably mounted on the shaft. A gear 7 pivotable on an axis 8 is urged by a spring 6 into engagement with worm 4 so that rotational movement of the record carrier will cause worm 4 to slide along shaft 1. When index 5 is obstructed by abutting the end of the scale (not shown) the teeth of gearrod 7 slide up the inclined face of the worm thread and lift the gear-rod. To prevent the teeth of the gear-rod from re-engaging worm 4 a disc 10 forming part of a slip coupling 9, 10 is provided with a cam 13 which serves as a lock. The cam engages an edge 14 of gear-rod 7 and abuts a fixed stop 16. In a modification shown in Fig. 4, the worm drive comprises a threaded segment 22 provided with an index 21 and a screw spindle 23. In a further modification shown in Figs. 6 and 7b, a worm 36 is fixed to a shaft 37 driven by a wheel 3 and belt drive from the record carrier. Worm 36 engages and drives a gear disc 40 on the shaft of which an index 41 is mounted. Shaft 37 is supported in a pivotable element 38. A disc 10 of a slip coupling 9, 10 is provided with two locking cams 44, 45 which engage a fixed stop 46 and a lug 47 on element 38 when counter index 41 is obstructed by one of two stops 43 thus disengaging worm 36 from gear disc 40 and holding it in the disengaged position until the drive of the record carrier is reversed.
Patent GB-335407-A (GB)
Title: Improvements in and relating to means for positioning and retaining bobbins on the spindles of winding machines
IPC: B65H75/30
Filed: 1929-10-21
Abstract: 335,407. Joyce, J. D. Nov. 1, 1928, [Convention date]. Winding-machines.-A cap for centering and retaining a bobbin on its spindle in a winding-machine comprises a knurled knob 14, a metal flange 9 and a collar 20. The collar is a, push fit on to the depending cylindrical portion 17 of the knob 14, and has a short upstanding annular flange 21 of smaller diameter than the hole 10 in the flange 9. The flange 9 is placed over the portion 21 of the collar 20, and the latter is then pushed over the cylindrical portion 17 of the knurled knob. Thus the flange 9 is secured to the knob, but is free to rotate since the height of the projection 21 is slightly greater than the thickness of the flange 9. The knob has a tapped metal bush 19 having a left-hand thread, so as to counteract the tendency to unscrew due to the direction of rotation of the bobbin. The whole is screwed on to the threaded end of the spindle and secures the bobbin thereto whilst permitting free rotation relative to the spindle. The flange 9 is radiused at its periphery so as to fit the top of the bobbin 13.
Patent GB-1370608-A (GB)
Title: Holders for a roll of paper
IPC: A47K10/38
Filed: 1971-10-01
Abstract: 1370608 Roll holders K H HOLLOWAY (ENG) Ltd 1 Oct 1971 [1 July 1970] 31961/70 Heading A4G A paper roll dispenser comprises an L-bracket 10 for fixing to a wall with an aperture 15 receiving a bearing 16 rotatably supporting shaft 17 of a roll holder having blades 20 insertable into the core of a paper roll, the shaft being secured in the bearing by disc 18 screwed at 18d to rotate with the shaft. A knob 22 containing a cork washer 23 screws on the bearing 16 to press the washer on disc 18 to act as a brake.
Patent GB-1045835-A (GB)
Title: Electrical device with cooling arrangement
IPC: H01G2/08
Filed: 1963-08-13
Abstract: 1,045,835. Capacitors. GENERAL ELECTRIC CO. Aug. 13, 1963 [Sept. 18, 1962], No. 31964/63. Heading H1M. In the capacitor shown in cross-section, the side walls 2a and 2b of casing 2 are flexible to respond to expansion or contraction of the dielectric fluid 15, and heat-conducting plates 11 and 12 having portions 11a and 12a in constant contact with the capacitor transfer heat therefrom to the end walls 2c and 2d of the casing. The inwardly bowed members 11 and 12 may also have portions projecting outwardly to contact side walls 2a and 2b to maintain the spacing between the conducting plates and the side walls, and the contact of the heat-conducting members with the capacitor unit. Alternatively, as in Fig. 4 (not shown), these results are achieved by appropriately located leaf or coil springs. Plates 11 and 12 may have apertures to facilitate circulation of the dielectric fluid and are preferably of metal having high thermal conductivity, e.g. aluminium. Outer casing 2 is preferably of metal, such as mild or stainless steel, having a coefficient of expansion lower than that of the plates 11 and 12. The capacitor unit shown comprises flattened rolls surrounded by insulation 10, the casing 2 being hermetically sealed by a cover. The dielectric fluid may be chlorinated diphenyl, insulating oil or sulphur hexafluoride.