baber/WOPTO huggingface dataset:
Patent GB-342525-A (GB)
Title: Improvements in card saving motions for jacquards
IPC: D03C3/24
Filed: 1930-02-01
Abstract: 342,525. Jacquards. MENSCHNER, J., Rosswein, Saxony, Germany. Feb. 1, 1930, No. 3459. Convention date, Feb. 8, 1929. [Class 142 (i).] A card-saving device comprises a number of special griffe hooks 2 and a corresponding number of timing discs 19, each of which is adapted to allow the further feed of the jacquard cylinder 1 after a predetermined number of picks. The pawls 16 for operating the discs 19 are carried on a shaft 15 mounted in arms 12 which are rocked every pick about the pivot 11 by a cam 13, any pawl being brought into action by a spring 17 when the tail of the pawl 16 is freed by a lever 9 connected by rods &c. 7, 4, 3 with the corresponding hook 2. After a predetermined number of picks the end of the pawl enters a notch 10 in the disc 19 and the pawl 16 hits a rod 21 carried by arms 23, also pivoted on the shaft 15, and moves the pawl 24 into engagement with a ratchet wheel 25 whereby the jacquard cylinder 1 is rotated one step. The pawl 24 is disengaged by a cam 27 acting on the lever 23. Should no hook 2 be pulled a lever 31, also pivoted on the shaft 15, is pulled by a spring 28 and keeps the pawl 24 in engagement with the ratchet wheel 25, but if any rod 2 is pulled, the corresponding lever 9, through a lever 7, holds the lever 31 out of action. The griffe block 35 is kept stationary during each rest of the card cylinder.
Patent GB-353377-A (GB)
Title: Improvements in a method of reclaiming and reusing metallic scrap mixtures
IPC: C22B7/00
Filed: 1931-02-04
Abstract: Scrap metallic material, particularly scrap welding electrodes of the copper-molybdenum or copper-tungsten type, and material resulting from their machining during manufacture, is reclaimed by grinding the material to powder and heating the powder in a reducing atmosphere. The product may be formed into electrodes or other articles with or without the addition of more metal.
Patent GB-744764-A (GB)
Title: Improvements in and relating to the production of artificial threads
Inventor: BARRATT HAROLD
IPC: D01D10/04
Filed: 1953-02-09
Abstract: <PICT:0744764/IV(a)/1> <PICT:0744764/IV(a)/2> Freshly spun artificial filaments, threads, films and like products are treated by drawing the material through a substantially horizontal plane in the air and, whilst it is in that plane, applying treatment liquid or liquids from a number of spaced supply points, and wiping surplus liquid from the material as it passes from one supply point to the next.  As shown in Figs. 1 and 2 a warp 1 of freshly formed threads travels in the direction of the arrow through the air in a substantially horizontal plane between two sets of rollers 2 and 3.  The warp passes immediately above a series of liquid supply means 4, from which treatment liquids are applied to the threads, and also over a series of wipers 5 with which the threads make light contact so that surplus liquid adhering to the threads is removed.  The supply means 4 are slotted tubes arranged at rightangles to the direction of travel of the threads.  Liquid can be fed to these tubes through the control valves 6 so that it emerges from the slots of the tubes and is applied to the travelling threads.  Any overflow of liquid falls into a collecting through 7, from which it flows through an outlet 8 for subsequent recovery or recirculation.  The liquid from one trough may be fed to the supply point in an adjacent position.  The tubes 4 may be so placed that the threads make contact with them, but are preferably so placed that the threads pass a short distance above them and the supply of liquid is controlled to enable it to stream out into contact with the threads.  The outlets 8 from the trough 7 may be located immediately below the tubes 4 and may be funnel-shaped where they join the troughs.  In another embodiment the warp of threads passes immediately below a series of rods of circular cross-section arranged at right-angles to the direction of travel of the threads and at an angle to the horizontal, so that liquid falling from tubes located above the rods flows along the rods and is transferred to the threads.  The warp of threads is also arranged at the same angle to the horizontal as the rods in a direction at right-angles to the direction of travel of the threads.  As in the first embodiment the threads, after leaving each supply point, pass over wipers which are rods of triangular cross-section fixed at right-angles to the direction of travel of the threads.  Liquid falling from the threads, wipers and liquid supply rods collects in horizontal troughs situated under the threads.  The liquid supply means and wipers may be made of glass, aluminium, stainless steel, phenol-formaldehyde resin or dense carbon-graphite material.  When the apparatus shown is used for the production of viscose rayon, the treatment liquids may be a dilute acid solution, water, a desulphurizing solution, a bleaching solution and a textile finishing composition.
Patent GB-328964-A (GB)
Title: Improvements in brakes and in operating brake and control mechanism for cycles and the like
IPC: B62L1/14
Filed: 1929-02-04
Abstract: 328,964. Marr, L. T., and Resilion Co., Ltd. Feb. 4, 1929. Brake mechanism.-In cycle &c. brakes of the type in which the two brake blocks are operated by separate Bowden wires the inner members of which are brought to a common point and there connected to a single inner member of a Bowden transmission attached to the operating-lever, each brake block 5 or 6 is carried on a shoe 7 or 8 secured to lugs 10 on a pair of bell-crank levers 11, 12, which are arranged one on each side of the stay 14, as shown in Fig. 2, and are pivoted at 17 to a clip on the stay, the levers being connected by a cross bar 23 to the centre of which the inner member 22 of the Bowden mechanism is secured, as by a plug 26. The two inner wires 22 are passed into a floating housing 32a and united at 33 to the inner wire 34 of a common Bowden transmission operated from the control lever, the housing 32a having abutments at its ends for the outer members of the various Bowden mechanisms.
Patent GB-253565-A (GB)
Title: Improvements relating to the manufacture of biscuits and the like and means therefor
IPC: A21B5/02
Filed: 1925-02-10
Abstract: 253,565. Peek, Frean, & Co., Ltd., and Rondolin, L. Feb. 10, 1925. Bakers' ovens. - In a method of baking binscuits on a continuous web conveyer which does not extend substantially beyond the discharge end of the oven, the biscuits are stripped from the convever while still in a hot and plastic state and are received on a second conveyer, on which they are allowed to cool and set, the spaced relationship of the biscuits being maintained throughout the process. The stripping may be effected by a flexible comb bearing on the conveyer, by a stretched wire, or by the cooling conveyer 13 itself, which has an acute angled bight bearing on the oven conveyer. To facilitate the stripping, the oven conveyer 11 may be passed over a roller 12 having a diameter less than the longitudinal dimension of a biscuit.
Patent GB-817179-A (GB)
Title: Process for the separation of glutamic acid from vinasse
IPC: C12F3/10
Filed: 1957-02-04
Abstract: Glutamic acid is obtained from vinasse by heating the vinasse with an alkaline earth oxide or hydroxide for such a time that no appreciable hydrolysis of the pyrrolidone carboxylic acid occurs, separating solid matter from the liquid, hydrolysing the pyrrolidone carboxylic acid in the solution in known manner, and isolating glutamic acid by adjustment of the pH of the solution to approximately that of the isoelectric point of glutamic acid.  If concentrated vinasse is used as starting material, it should be diluted, preferably with 1-3 times its weight of water.  The preferred quantity of alkaline earth compound is 2-20 per cent by weight of hydroxide, or an equivalent amount of oxide, referred to concentrated vinasse.  The heating time is brief, generally about 10 minutes at 50-100 DEG  C.  Specification 817,178 is referred to.
Patent GB-165892-A (GB)
Title: An improved method and apparatus for the electrostatic separation of materials
IPC: B03C5/02
Filed: 1920-02-07
Abstract: 165,892. Hatfield, H. S., and Imperial Trust for the Encouragement of Scientific & Industrial Research. Feb. 7, 1920. Electrostatic separators.-Finely-divided substances are separated according to their dielectric constants by being suspended in a liquid having dielectric capacity lying between that of the constituents of the mixture to be treated and passing the suspension through an electrostatic field produced by electrodes connected to a hightension electric supply. Apparatus for effecting such a separation may comprise a non-conducting surface K, Fig. 3, over which the suspension fows having parallel conductors J alternately connected to opposite poles of electric supply. The particles having a. higher dielectric constant remain behind on the conductors and may be washed off at intervals into a separate receptacle. In the apparatus shown at Fig. 4<a>, the suspension passes into a vessel L in which are metal gratings M, alternately oppositely charged, which effect a similar separation, the particles remaining behind on the gratings being discharged at intervals into a separate receptacle through a twoway valve F. In the apparatus shown at Fig. 5, a continuous separation is effected by using a grating or sieve in halves, each half being alternately over the middle sump W and one of the outer sumps V, X. Electrical connections are arranged so that the part over the middle sump is always charged and removes the susceptible material from the suspension flowing into the middle sump. When this part is loaded, it is moved over one of the end sumps, where it is disconnected to discharge the attracted material whilst the other sieve is moved into operative position over the middle sump. In a modification the different sieve sections are rotated so as to bring them alternately into the operative and discharge positions. In the further modification shewn in Fig. 7, water or other conducting liquid which is immiscible with the suspension medium is used as one electrode b. The other electrode is formed by a perforated grid d. The suspension liquid c into which the mixture is fed floats on top of the water and the part of the mixture of greater dielectric constant than the suspension liquid remains on the boundary of the two liquids whilst the remainder passes through and settles at the bottom. Both electrodes may be of liquid by providing vertical partitions so as to divide the liquid into parallel strips alternately connected to opposite poles of supply. The Specification states that aniline is found to be a suitable suspension medium for use in the separation of cassiterite from the ore and also that a liquid of a desired dielectric constant may be produced by mixing nitrobenzene and paraffin oil in suitable proportions. Where metal electrodes are used, provision is made for preventing shortcircuiting of the electrodes by chains of separated material by wholly or partly covering them with perforated insulating-material.
Patent GB-1085121-A (GB)
Title: Improvements in or relating to pneumatic relays
Inventor: SANVILLE FRANK EDWARD
IPC: F15C4/00
Filed: 1964-01-29
Abstract: 1,085,121. Logic elements. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Jan. 12, 1965 [Jan. 29, 1964], No. 3813/64. Heading G4P. [Also in Division F2] A pneumatic relay comprises a first chamber A, Fig. 1 (not shown), separated from a second chamber B by a diaphragm 11, a diaphragm 12 separating the second chamber B from a third chamber C and a diaphragm 13 separating the third chamber C from a fourth chamber D. The diaphragms 11 and 13 are of equal area and smaller than the diaphragm 12 and all the diaphragms are connected to a movable member 19 which carries two valve closure members 23a, 23b which can alternately close the connection between the fourth chamber D and a fifth chamber E and the fifth chamber E and the sixth chamber F respectively. Pressure connections are provided to each of the chambers and by a suitable arrangement of connections as indicated in Figs. 4-10 (not shown) the relay may be used as an OR-gate, AND- gate, "non-implication" device, NOT-gate, or a memory switching function and two relays used as a co-equivalent device. In a modification, the closure members are formed on a single member arranged wholly in the chamber E to provide a reverse acting relay which may be used as indicated in Figs. 11-15 and 17 (not shown) to provide a NOR-gate, NAND- gate implication device, or pulse shaper. Fig. 16 (not shown) indicates a combination of the two relays to provide a multivibrator.
Patent GB-621241-A (GB)
Title: Improvements in and relating to sac self-filling fountain pens
IPC: B43K5/04
Filed: 1947-02-10
Abstract: 621.241. Fountain pens. LANG PEN CO., Ltd., and HORN. A. S. Feb. 10, 1947. No. 3842. [Class 146 (iii)] In a lever-actuated sac selffilling fountain pen a stop arm 10 is pivoted to the filling lever 6 to prevent the lever moving beyond its raised position at right angles to the pen. The stop arm 10 has an arcuate portion 16 and is square cut at 17 to abut with the lower wall of the channel section lever 6 when the lever is fully raised, while its upper end 15 engages the inside of the barrel wall. In a modification, abutments in' the form of pressed lugs may be provided on the lever 6 which engage the lower end of the arm 10. The arm 10 may be bifurcated to engage the end of the lever slot or its bifurcated end may be retained by a spring ring set in a groove in the barrel.
Patent GB-1484975-A (GB)
Title: Oxidation-leaching of chalcopyrite
IPC: C01G49/06
Filed: 1975-01-29
Abstract: 1484975 Chalcopyrite leaching FREEPORT MINERALS CO 29 Jan 1975 [27 Feb 1974] 3847/75 Heading C1A Chalcopyrite (CuFeS 2 ) is leached by passage of an aqueous slurry of chalcopyrite ore concentrate and an oxygen-containing gas into an autoclave and treating the slurry for 5-15 minutes at 425-450‹ F. under an oxygen partial pressure of 50-200 p.s.i. to form an acidic slurry containing at least 50 g.p.l. H 2 SO 4  and to extract at least 87% of the Cu, present in the starting concentrate, as its sulphate; thereafter the acidity of the slurry in the autoclave is reduced to 10-40 g.p.l. H 2 SO 4 , while maintaining pressure and temperature at the above elevated levels, to give a slurry containing a concentration of dissolved iron of less than 1À5 g.p.l. and thence removing the slurry from the autoclave.
Patent GB-1508753-A (GB)
Title: Line state detection circuit arrangements
IPC: H04M19/00
Filed: 1977-01-31
Abstract: 1508753 Automatic exchange system SIEMENS AG 31 Jan 1977 [30 March 1976] 03861/77 Heading H4K A circuit arrangement for detecting the state of a line e.g. a loop detector, comprises an amplifier and means for distinguishing between actual signals and interference signals, said means comprising a variable threshold circuit for adjusting the threshold response of the amplifier and a suppression circuit which suppresses pulses shorter than a predetermined length. In the embodiment, Fig. 1, an unbalance line Ltg is connected to an operational amplifier whose output A denotes the state of the line Ltg by monitoring voltage drops on resistor R1. A threshold circuit, resistors R6-11 determines a bias voltage or response threshold for the amplifier; a control path, resistors R2-4, connects the line to the threshold circuit, and when the output signal A changes as a result of the signal on the control path exceeding the response threshold, the response threshold is reduced, so that interference voltages do not effect the output A of the amplifier. Resistors R2-R5 provide impulse and excess voltage protection. A suppression circuit Z, comprising a diode D, capacitor C and transistor T, provides a time delay to eliminate interference pulses which exceed the response threshold. As described, circuit Z, also provides excess voltage protection and may operate as a pulse correction circuit, via a variable resistor R12. The arrangement may also be used with a balanced line (Fig. 2, not shown).
Patent GB-905417-A (GB)
Title: Antenna
IPC: H01Q1/28
Filed: 1961-02-01
Abstract: 905,417. Aerials. DON-LAN ELECTRONICS Inc. Feb. 1, 1961 [Feb. 19, 1960], No. 3879/61. Class 40 (7). An aerial comprises a hollow conducting body 10 terminating at one end in a coaxial input connector 11 and at its other end in a sleeve coaxially aligned with the connector, the rear section 13 of a dielectric rod member being received by the sleeve and there being means to couple e.m. energy from the conductor to the rod within the body. The inner conductor 17 of the connector is bored to form a thermal expansion joint with a probe 19, one end of which fits into the bore. The other end of the probe is bent laterally to connect at 22 with the cylindrical wall of the hollow body. The end of the dielectric rod fitted into the body has a conductive coating which is extended to form a sector-shaped coating 24 on the base of the rod. The probe is inclined at a small angle A to the base so forming a capacitive coupling with the sector 24, the capacitance varying over the length of the laterally bent portion of the probe to form a coupling stated to be effective over a wide frequency range. Matching may be achieved by varying the capacitance by rotation of the rod, and thus the sector 24, relative to the probe. Rotation of the sector through 90 degrees to the position 24<SP>1</SP> indicated by dashed lines produces circularly polarized radiation. The end of the rod remote from the body tapers towards a point so that the rod functions as a dielectric lens to restrict the width of, and suppress side lobes in, the radiated beam. The directivity may be further enhanced by providing a series of conducting bands on the rod, Fig. 4 (not shown), whose width and spacing decreases towards the point of the rod, or by the provision on a common axis of a number of dielectric rods whose diameters decrease towards the point, each fitting in a conductively lined cavity in its predecessor in a sequence nearer the body 10, Fig. 5 (not shown).
Patent GB-338449-A (GB)
Title: Improvements in water tube steam boilers
IPC: F22B37/22
Filed: 1930-02-05
Abstract: 338,449. Hawthorn, Leslie, & Co., Ltd., R. & W., and Armstrong, R. B. Feb. 5, 1930. Partitions and baffles in water space. - The upper drums 1 of boilers comprising two lower and two upper drums cross-connected by inclined generating tubes 4 and downcomers 5 are provided with a longitudinal submerged feed pipe 6 and a longitudinal baffle 7 between it and the generating tubes arranged so as to extend some distance above the feed pipe and inclined so that if produced its upper edge, which is free and forms a weir for the water flowing from the tubes, would intersect the vertical plane through the feed pipe axis. The feed pipes may have nozzles 8 led into the outermost row of tubes 5 or some of such tubes. Straight tubes 10 expanded into plates and separated into groups by header covers 11 may be arranged in the wing combustion spaces and used as superheaters or feed water heaters, and a. nest of air heating tubes 20 may be provided above the generating tubes.
Patent GB-588421-A (GB)
Title: An improved building block or the like
IPC: E04B2/02
Filed: 1945-02-17
Abstract: 588,421. Building blocks. KEARLEY, F. J. Feb. 17, 1945, No. 4062. [Class 87 (i)] An apertured building block is formed on one end face with a dovetail tenon 11 and on the opposite end face with a corresponding dovetail slot 12, the tenon and the slot being faced with metal plates 13, 16, on the sloping side walls only thereof. The bottom face of the block is formed with a tenon 17, Fig. 3, and the top face with a correspondingly shaped slot 18.
Patent GB-1507423-A (GB)
Title: Document handling apparatus
IPC: B42F17/00
Filed: 1976-02-02
Abstract: 1507423 Filing papers &c STEELCASE Inc 2 Feb 1976 [3 Feb 1975] 04064/76 Heading B6E A document handling apparatus comprises a panel 10, Fig. 5, composed of slats 11a, 11b, 11c and providing vertically spaced lugs 14, 15, which are engaged by hooks 44, 44a provided at the back wall 39 of trays 8a. The trays, which may be right or left handed (1a, 5, Fig. 6) have each a back wall 39 forming a right angle with the side wall 38 and bottom wall 37, the walls 39, 38 and 37 being inclined to the vertical and horizontal, respectively. Each tray is also provided with a lip 40.  The trays may be provided with auxiliaries in the form of an insert 49, Fig. 7, when a tray 8b is required to handle sheets, e.g. computer printouts of larger format or, in the form of an adjustable stop member 52, Fig. 12, made of a plastics material and placed in the tray 8a to abut its back wall 39a and the rear edge of sheets of smaller size. The bottom wall 37, Fig. 9, of the tray may be provided with a depending lip 45 which may carry indexing indicia or the lip 45 may be provided with a bead 60 for engagement of a recess 61 in a transparent tab 46 having a recess 48 in which may be located an index label.
Patent GB-1079824-A (GB)
Title: Improvements in or relating to knotting devices for net manufacturing machines
IPC: D04G1/00
Filed: 1966-01-31
Abstract: 1,079,824. Net-making machines. ESTABLISSEMENTS ZANG. Jan. 31, 1966 [March 29, 1965], No. 4113/66. Heading D1C. The mechanism for tying the knots in a net making machine comprises a substantially trapezium shaped plate 1 having an upper edge portion 2 and a lower edge portion 3 which is larger than the portion 2 but is tapered towards the front end of the plate 1. The front ends of the edges 2 and 3 are connected by a curved portion 4 and the two edges co-operate with an eyed member 11 to receive the yarns for the tying of the knots during the net making process. Each plate 1 has a plate 5 extending from its rear end to enable it to be secured to a bar 6 by a clamping strip 8. The plate 1 with the upper and lower edge portions 2 and 3 provides more rigidity and replaces the separate needles described in Specification 762,198.
Patent GB-1049582-A (GB)
Title: Improvements in or relating to methods of surface modifying carbon
IPC: C04B41/50
Filed: 1964-01-31
Abstract: Carbon articles, for example carbon-impregnated packing or sealing rings, bearings, electrodes and brushes, or powdered graphite, are treated, without preheating, with fluorine or a fluorine compound at below 550 DEG  C. to form a surface layer of polycarbon fluoride of formula (CF)n covalently bonded to the substrate.  The fluorine compound may be a halogen fluoride or metal fluoride or a mixture of fluorine and halogen fluoride may be used.  An inert diluent gas may also be present.  The fluorine may be obtained by electrolysis of potassium hydrogen fluoride, and used without purification to remove HF.
Patent GB-1024196-A (GB)
Title: Circuit arrangement for pabxs with key-dialling and tie-lines to other pabxs
IPC: H04Q3/42
Filed: 1963-02-01
Abstract: 1,024,196. Automatic exchange systems. STANDARD TELEPHONES & CABLES Ltd. (Standard Elektrik Lorenz A.G.). Feb. 1, 1963, No. 4259/63. Heading H4K. In a P.A.B.X. having key-dialling, and tieline facilities to other P.A.B.X.'s, the register tests a seized tie-line link and itself connects dialling tone if the link does not have a dialling tone facility. Such a link is marked by interchanging the line wires so that the resulting reversal of potential causes the operation of a test relay in the register.