baber/WOPTO huggingface dataset:
Patent GB-181902-A (GB)
Title: Improvements in the manufacture and production of coloured threads, filaments, strips, or films, of cellulose
IPC: D06P1/22
Filed: 1921-04-23
Abstract: Threads, filaments, strips, or films of cellulose are dyed with vat or sulphuretted dyes by incorporating with viscose the leuco compound of the dyestuff.  The mixture of viscose and leuco colouring matter is preferably obtained by first bringing the dyestuff into solution by an alkaline reducing agent in the usual manner and then mixing with viscose, either as such, or more advantageously during its production.  According to examples Thional Black O.G., Duranthrene Blue C.C., and indigo are dissolved in caustic soda and sodium hydrosulphite and then mixed with cellulose xanthate.  The mixture is spun in the usual way and during the further treatment of the thread, particularly the washing and drying, the oxidation of the leuco compound proceeds.ALSO:Threads, filaments, strips, or films of cellulose are dyed with vat or sulphuretted dyes by incorporating with viscose the leuco compound of the dye.  The mixture of viscose and leuco colouring-matter is preferably obtained by first bringing the dyestuff into solution and then mixing with the viscose, either as such, or during its production.  With a sulphur colouring-matter sodium sulphide may be used in small quantities for this purpose, but it is preferred to replace it by sodium hydrosulphite.  The use of large quantities of sodium sulphide is to be avoided. According to examples Thional Black O.G., Duranthrene Blue C.C., and indigo are dissolved in caustic soda and sodium hydrosulphite and then mixed with cellulose xanthate.  The mixture is spun in the usual way, and during the further treatment of the thread, particularly the washing and drying, the oxidation of the leuco compound proceeds.
Patent GB-1062353-A (GB)
Title: Improvements in or relating to the brewing of beer
Inventor: WATTS DONALD EDWARD CHARLES
IPC: C12M1/26
Filed: 1965-03-19
Abstract: 1,062,353. Removing yeast head in brewing. A. P. V. CO. Ltd. Feb. 14, 1966 [March 19, 1965], No. 11885/65. Heading C6E. A yeast head 4 is removed from a top fermentation vessel 6 by a stationary suction nozzle connected to a vacuum pump through a separator vessel, which suction nozzle is in the form of a 2¢-inch diameter stationary tube 1 having a closed end with one or more narrow slots 2 formed adjacent the closed end to form a constricted, shear-inducing inlet to the tube. The slots may extend over about half of the tube circumference. A second narrow slot or row of narrow slots may be formed parallel to the first slot or row of slots. A shield 3 and hood 10 may be fitted as shown. The slots may be used as spray nozzles for cleaning fluid to be applied to the fermentation vessel.
Patent GB-857682-A (GB)
Title: Footwear forming apparatus
Inventor: SWAIN ROBERT PADDY
IPC: A43D23/00
Filed: 1958-04-15
Abstract: 857,682. Top line forming machines. STANDARD ENGINEERING CO. Ltd. April 15, 1959 [April 15, 1958], No. 11957/58. Class 17(1) A machine for shaping the top edges of uppers comprises a form B and inflatable side pads C, pneumatically operated. When knob K is pressed inwards valve L opens and air is admitted to the upper end of cylinder J. Through limbs H, G, E, the motion is transmitted to bridge casting D, which moves slightly downwards so that the pads C engage the upper on the form B. At the end of the stroke, adjustable screw M contacts valve N which opens to admit air to pads C to inflate them. At the end of the shaping operation, knob K is pushed in, air being admitted to the lower end of cylinder J, which reverses the process. Although the pads C start to move away from the form B before they are deflated, no damage is done to the upper, since the initial movement is upwards.
Patent GB-800684-A (GB)
Title: An improved process and apparatus for producing metal parts by cold extrusion
IPC: B21C23/21
Filed: 1956-04-19
Abstract: 800,684. Extruding; metal working presses. TAREX S.A. April 19, 1956 [April 20, 1955], No. 11976/56. Class 83 (4). In a method of coldextruding metal, a slug 56, Fig. 5, is first subjected to gradually increasing pressure by a punch 23 and simultaneously a liquid is pressurized, the energy stored in this liquid being used subsequently to effect part of the extrusion. The punch 23 is mounted on a vertical slider 22, Fig. 1, pivoted at 18 to a lever 11 actuated by a rod 10 from a crank 9 driven through gearing 6, 5 and a clutch 1, 4 by an electric motor M. Lever 11 is also pivoted at 37 to a pair of rods 12 connected by a pin 39 to a piston 13 working in a cylinder 14 communicating through pipes 15 and interposed valves 17 with hydraulic cylinders 16. The extrusion stroke is initiated by a handle 52 which disengages a brake 53, 54 and engages the clutch 1, 4 whereupon the lever 11 pivots about the substantially stationary fulcrum 37 and moves the punch downwardly to first punch out a slug 56, Fig. 5, from a metal strip 55 and then force it into a die 24 against a stop 49. Pressure builds up on the slug, thus tending to move fulcrum 37 upwardly and pressurize liquid in cylinder 14 and containers 16. The slug metal suddenly becomes fluid, whereupon the pressure decreases and the compressed liquid expands to retain pressure on the slug and cause it to extrude into recesses 51 in the punch and, if desired, recesses in the die. The rod 10 continues its downward movement whereby lever 11 tends to pivot about 18 and move rods 12 and piston 13 upwardly to re-pressurize the liquid in cylinder until an adjustable nut 29 on an extension 26 of the piston engages a surface 36 whereupon the punch 23 is given a final downward movement to complete the extrusion. Nut 29 is adjusted by a member 34 through a worm drive 30, 31, Fig. 3 (not shown). In another embodiment, Fig. 7 (not shown), the lower ends of the rods 12 are pivoted to the press frame and the die 24 is supported by a piston working in an hydraulic cylinder connected to containers 16. The downward movement of the die is limited by an adjustable nut. In a further embodiment, Fig. 8, the slider 22 carries 'a piston 71 working in an hydraulic cylinder 69 in a second slider 67 actuated by a cam 66. The cylinder 69 is connected through pipe 70, 15 with liquid containers 16.
Patent GB-544042-A (GB)
Title: Improvements in and relating to reinforcement of lightweight building slabs and like materials
IPC: E04C2/18
Filed: 1940-07-23
Abstract: 544,042. Building stabs ; walls. CARPENTER, G. July 23, 1940, No. 12040. [Classes 20 (iv) and 87 (i)] A building slab comprises a backing of cement, plaster, or fibrous material bound together by mortar, bitumen, &c., and a facing of reticulate metal having spaced grooves or ribs. Fig. 3 shows a wall made of two such slabs, one of which 8 is faced with cement 9 covered with paper 10, while the other 11 is faced with bitumen 12 ; the slabs are connected by wires 6 threaded through the ribs 5 of the metal facings and the space filled with concrete 7. The facing may be formed with grooves which may be filled with concrete.
Patent GB-1497144-A (GB)
Title: Electrical furnace for melting thermoplastic material
IPC: C03B5/03
Filed: 1975-03-24
Abstract: 1497144 Electrically heated furnaces CORNING GLASS WORKS 24 March 1975 [28 March 1974] 12097/75 Heading H2H [Also in Division H5] An electrically heated furnace 14 comprising a bottom wall 16 and an upstanding cylindrical side wall 18 through which project two sets of six electrodes 1-6 and 7-12 of which the electrodes 1..6 may each comprise three electrodes a, b, c connected in parallel, the electrodes being supplied from a three phase A.C. supply L1, L2, L3 by way of a pair of transformers T1, T2 the primary windings of which 21, 23, 25 and 27, 30, 33 respectively are connected in delta to the supply and the secondary windings 22, 24, 26 of the transformer T1 connected respectively to pairs of electrodes 1, 4; 3, 6 and 2, 5 whilst the secondary windings of transformer T2, which are divided into pairs 28, 29; 31, 32 and 34, 35, are connected with winding 28 to electrodes 7, 9; winding 29 to electrodes 8, 10; winding 81 to electrodes 9, 11; winding 32 to electrodes 10 12; winding 34 to electrodes, 7, 11 and winding 35 to electrodes 8, 12. Thus the electrodes 7-12 are connected in two separate delta connections which have opposite phase rotations to one another. The voltage outputs of the secondary windings of each of the transformers T1, T2 are adjustable independently of one another and the supply arrangement to, and the physical arrangement of the electrodes increases the melting rate of the batch material and also increases the life of the furnace walls and the electrodes.
Patent GB-1448444-A (GB)
Title: Apparatus for producing containers
IPC: B31B3/28
Filed: 1972-10-10
Abstract: 1448444 Making containers AIRFIX INDUSTRIES Ltd 10 Oct 1973 [10 Oct 1972 22 March 1973] 12162/76 and 12163/76 Divided out of 1448443 Heading B5D An apparatus for making a container by folding a blank using a core tool 10 and a cavity tool 14, 15 includes blank guide and positioning rails 12, (13), Fig. 4 (not shown), along which a blank can be fed under gravity, these rails 12 (13) being displaceable to permit complete closing of the core and cavity tools. The guide rails 12, (13) which have channels for receiving the edges of a blank, may be displaceable either in the axial direction of the core tool or laterally. In the embodiment shown in Fig. 3, the rails 12, (13) are displaced in said axial direction by a stripper plate (41b), Fig. 4a (not shown), which is movable with the core tool. The rails may be stepped as shown in Fig. 5 to position the blank. In alternative arrangements the blank is positioned by one or more stops and by moving the guide rails towards one another, either by pivoting the or each rail about its lower region or by moving the or each rail laterally. In a further arrangement, Fig. 6 (not shown), the blank is positioned by a stop (12<SP>1</SP>) and solenoids (12d, 13d) which can engage the blank side edges. The guide rails include cut-away portions 12e, 13e on the sides remote from the cavity tool. In a multi-impression form of the apparatus, adjacent edges of adjacent blanks may be guided in common guide rails, Fig. 7 (not shown), of substantially S cross-section. The cavity tool comprises a split tool whose parts 14, 15 are mounted in a base tool 16 for movement towards one another as the split tool is moved into the base tool by engagement with a stripping ring 41 on the core tool during closing movement of the latter. The core tool may have vacuum openings in its leading face or retractable projections on said face for engaging and holding the base panel of the blank. The juxtaposed edges of the folded blank are seamed by thermoplastic material injected into channels running adjacent siad juxtaposed edges while the folded blank is held in a cavity between the core tool, split tool and base tool.
Patent GB-1292377-A (GB)
Title: Device for preventing simultaneous energization of electromagnetic coils in automatic gear change control systems for automobiles
Inventor: WAKAMATSU HISATO
IPC: B60K23/00
Filed: 1970-03-13
Abstract: 1292377 Change-speed control NIPPONDENSO KK 13 March 1970 [28 April 1969] 12167/70 Heading F2D [Also in Division H3] An electrical interlock, for preventing simultaneous energizing of more than one ratioestablishing valve-solenoid 41 ... 45 in an electro-pneumatic control of a fluid-coupling driven manual and automatic transmission on a motor vehicle, comprises a known constantvoltage circuit 50a, which feeds the solenoids at 63 from a battery 1 and has an additional signal output 64, of a switching circuit 50b, fed by the solenoids through resistors 71 ... 75, and a constant-voltage diode 76, which breaks down under a voltage exceeding that supplied by a single solenoid, and conducts reversely, applying a signal voltage to the gate 62a of an SCR 62, which then also conducts, switching off a transistor 51 to cut off the supply 63 to all the solenoids and so neutralizing the gear. The terminal 63 feeds the shift solenoids through a manual switch 21 having four positions selecting reverse and three forward ratios, and a fifth position energizing a circuit 30, commanded by signals 32 ... 35 from an automatic control unit, not described, for controlling four forward ratios. Fig. 1, not shown, is for a system, stated to be known, using two transistors to switch off the supply to the solenoids when the current thereto exceeds that required by an individual solenoid, the current appearing as a voltage across a monitoring resistor, and detected by a transistor.
Patent GB-513956-A (GB)
Title: Improvements in and relating to electric valve circuits
IPC: B23K11/24
Filed: 1938-04-23
Abstract: 513,956. Switching systems for consumptionapparatus. BRITISH THOMSON-HOUSTON CO., Ltd. April 23, 1938, No. 12223. Convention date, April 24, 1937. [Class 38 (iv)] A load circuit is completed at a predetermined point in a cycle and remains completed for the remainder of that cycle, the completion being effected a predetermined number of times. The invention is described as applied to a welding circuit in which the load circuit 5 is connected to mains 1 through valve 6 at a predetermined point in the cycle and remains completed over valves 6 and 7 for the remainder of that cycle, the starting pulse being uninterrupted if switch 45 is in dts upper position and being interrupted after predetermined number of pulses if the switch is connected as shown. Pulses are supplied to transformer 37 at a point in the cycle determined by phase shifter 40. Normally condenser 30 is charged and when a pulse is received by transformer 37, valve 31 becomes conductive, condenser 30 discharges and grid 15 of valve 11 is biassed to allow valve 11 to conduct. The immersionignitor control member 9 of valve 6 is energized and an arc is established in valve 6 to allow the valve to conduct and complete the load circuit for the remaining portion of the positive half cycle. Transformer 22 is also energized so that the bias on valve 12 is overcome and this energizes valve 7 so that the load circuit is maintained for the negative half cycle. Meanwhile, condenser 30 is recharged from supply 25 so that when the next pulse is received by valve 31 the cycle is repeated. If switch 45 is in its upper position this cycle continues indefinitely but if the switch is in the position shown each time condenser 30 discharges through valve 31,. a pulse of current passes through transformer 51 and rectifier 52 to condenser 48 to reduce the bias of valve 41. After a number of pulses, determined by the setting of adjustable resistance 53, the charge on condenser 48 overcomes the bias of valve 41 so that the valve conducts. This connects the whole, instead of part, of resistance 28 as the bias resistance of valve 31 and valve 31 is rendered non-conductive so that no further pulses reach valve 11 and the supply current is cut off. The apparatus is reset by closing switches 54, 55 either by hand or mechanically to discharge condenser 48 and to permit the grid 44 of valve 41 to obtain control. Reference has been directed by the Comptroller to Specifications 443,518, 450,750 and 452,971.
Patent GB-559565-A (GB)
Title: Improvements in and relating to apparatus for use in measuring the frequency, and relative phase and amplitude of mechanical vibrations
IPC: G01H1/00
Filed: 1942-08-31
Abstract: 559,565. Vibrometers ; balancing rotating parts ; stroboscopic devices. BRITISH THOMSONHOUSTON CO., Ltd., and HOPKIRK, K. R. Aug. 31, 1942, No. 12262. [Classes 106 (ii) and 106 (iv)] [Also in Group XX] In a vibrometer of the tuned reed type, tuning is effected by longitudinally compressing the reed. The device shown is clamped to the vibrating member under test so that the vibration to be measured is in the direction Y. The reed 2 is clamped at 3 and is subjected to compression by a wire 5 under the influence of a spring 8, the tension of which is variable by rotating a nut 11, which also moves pointer 13 indicating the tension on a scale 17. The frequency of the reed is also effected by a weight 24 adjustable along a scale 28. Rotation of a screw 18 by a knob 25 moves a block 20 transversely. In use, the block 20 is adjusted to indicate the mean position of the reed on a vernier scale 22. The vibrating member is started up and knob 25 is rotated until contacts 4 and 21 on the reed and the block, respectively, just make. The weight 24 and nut 11 are adjusted until the reed has a maximum amplitude, which can be ascertained from the scale 22. The frequency is obtained from a table, Fig. 2 (not shown). Contacts 4 and 21 are in circuit with a stroboscopic lamp which illuminates the instantaneous angular position of a mark on an unbalanced rotating part.
Patent GB-149746-A (GB)
Title: Improvements in ink ribbon mechanism for typewriting machines
IPC: B41J33/514
Filed: 1919-05-15
Abstract: 149,746. James, R. W., (Remington Typewriter Co.). May 15, 1919. Ink-ribbon mechanism.-(1) Automatic reversal. In mechanism comprising areversing-device controlled from the inkribbon spool, means is provided for preventing the reversing- device from being affected when the spool is detached; the means enables a fresh spool to be mounted without the reversing-device disarranging the ribbon on the spool. The invention is shown in Figs. 5 and 7 as applied to mechanism in which the shaft 9 of each spool 11 is provided with a sliding rod 18 having a finger 20 passing through a hole in a reversing-device or feeler 22 pivoted to a collar 28 on the shaft and provided with a weighted end 23 which passes into the core 14 of the spool, and is in register with a slot 15 in the core; when the ribbon has been wound-off either spool, the feeler 22 drops and pushes the rod 18 into engagement with a worm 7 on the driving-shaft 5, which thereupon moves longitudinally and transfers the drive from the full to the empty spool. According to the invention, each feeler or, since usually the right-hand spool only is changed, the feeler of the right-hand spool is associated with a latch or member 39, shown separately in Fig. 4, for controlling the feeler when the spool is detached. The member 39 is formed with an eye 43 for engaging the shaft 9, and a slot 45 for engaging the finger 20. A spring 47, arranged between the collar 28 and a lip 41 on the member 39, urges the member towards the spool, ears 42 on the member normally abutting on the flange 13 of the spool. When a full spool is removed, the member 39 is forced forwards by the spring 47 until the end of the slot 45 engages the finger 20, the feeler being thereby held in the normal position as shown in Fig. 7. The forward movement of the member is limited bv the engagement of the lip 41 with the end 37 of a latch 34, described below, which is set in the position shown in Fig. 7 to permit of removal of the spool. When an empty spool or one containing only a few turns of ribbon is removed, the member 39 in moving forward raises the feeler to the normal position. In mounting a fresh spool on the shaft, the flange 13 engages the ears 42 and restores the member to the normal position. (2) Spools. The spools are coupled to the associated shaft 9 by the engagement of lugs 32, Fig. 5, on the flange 12 with a notch 33 and a slot 19 in the shaft. The spools may be each secured by a latch 34 which is pivoted on a pin 35 within the slot 19 and is normally held in engagement with the flange 13 by a spring 38. The. latch is pressed into the slot. to release the spool, by means of a finger-piece 36. The right-hand spool only may be secured by a latch, the left-hand spool being secured by a screw.
Patent GB-164590-A (GB)
Title: Improvements in or relating to electric light fittings
IPC: F21V17/10
Filed: 1920-05-04
Abstract: 164,590. Hards, W. S. T. May 4, 1920. Globe and shade galleries. - In an electric lamp fitting, the globe or shade is provided with a fixed ring, adapted to engage the gallery by bayonet catch or like joints, and a multiarm spring, mounted on the central supporting sleeve 3 of the gallery is adapted to press on the ring and to engage a recess therein. In one form, a globe 5 is fixed to a metal ring on which are pins 8, which engage with slots 9 in the gallery 1. A four-tongued spring 2 is secured to the sleeve 3 by a. lock-nut 4. One arm of the spring engages a recess 7 in the ring, a stop-pin 3<a> serving to register the spring and recess. To remove the globe the spring arm is lifted clear of the recess by inserting an instrument in a small hole 10, when the bayonet catches can be released. In a. modification the spring arm carries a fixed stud projecting through the gallery and having a small notch or hole for the reception of an instrument to raise the arm.
Patent GB-119492-A (GB)
Title: Improvements in the Extraction and Recovery of Potash, or Potassium Salts from Potash-bearing Materials.
Inventor: ASHCROFT EDGAR ARTHUR
IPC: C01D3/08
Filed: 1917-08-28
Abstract: 119,492. Ashcroft, E. O. Aug. 28, 1917. Potassium salts, obtaining from complex silicates. Potassium chloride is obtained from potash-bearing minerals such as feldspar, mica, alunite, or leucite; or from cement-kiln dust, blast furnace dust, wood or plant ashes, beet-sugar residues, &c., by treating the substances with chlorine gas while suspended in a fused bath of sodium or potassium chloride, or a mixture. A chlorine-carrier such as a salt of iron, manganese or chromium, and a reducing-agent such as carbon or sodium, potassium, zinc, lead, or iron sulphide may be added. The reaction is carried out in a converter at about 800-1100‹ C. and may be continued until some constituents, which form volatile chlorides such as iron or aluminium, are separated by volatilization. Potassium chloride is separated by lixiviation.
Patent GB-527987-A (GB)
Title: New or improved safety device for leaf springs
IPC: B60G11/113
Filed: 1939-04-25
Abstract: 527,987. Laminated springs. DAIMLERBENZ AKT.-GES. April 25, 1939, No. 12392. Convention date, March 9. I[Class 108 (iii)] A leaf spring, particularly applicable to independent wheel suspensions of vehicles, has the end portion of the main leaf g, which forms the eye h, bent back upon the leaf and positively connected directly or through an intermediate member with another leaf l of the spring, so that upon breakage of the main leaf, the eye is positively held. In the form shown the connection is made by a V-shaped member r fixed by screws or rivets s to the leaf l and having its lower link connected by a bolt k which passes through an eye m at the end of the bent back portion of the leaf g. The eye m is elongated so as to give a limited amount of play. An intermediate leaf o may be formed with a bent end p abutting against the eye h.
Patent GB-359417-A (GB)
Title: Improvements in apparatus for lowering lifeboats from ships
IPC: B63B23/58
Filed: 1930-07-16
Abstract: 359,417. Boat-lowering gear. SACERDOTI, C., 30, Via Castelvetro, Milan, Italy. July 16, 1930, No. 12405/31. Convention date, July 16, 1929. Divided on 359,408. [Class 115.] An automatic release-hook for ships' boats combined with winchgear designed to secure an overrunning of the falls to ensure the release of the hooks comprises a link 41 attached to the fall and provided with weighted jaws 43 across which extends the bar 42 with which the hook 44 engages. The latter is provided with a spur 45 which co-operates with an inclined surface on the link 41 to ensure a rectilinear motion of the hook on release. The mouth of the hook is provided with a mousing device 46 which may be gravity actuated. The brake arrangement for the winch comprises a governor actuated disc 60, Fig. 5, which during lowering operations bears against the adjustable surface 61 ; the overrunning of the falls is secured bv the action of the inertia disc 64. Alternatively the fall 73, Fig. 6, passes over a spring-controlled pulley 71, Fig. 6, the weight of the boat acting through the fall serving to compress the spring 79 and, through a suitable relay, to operate the winch-brake which is released when the boat is water-borne.