baber/WOPTO huggingface dataset:
Patent GB-742982-A (GB)
Title: Improvements in or relating to welt turning on straight bar knitting machines
Inventor: SWANWICK BARRY FREDERICK
IPC: D04B11/32
Filed: 1952-03-21
Abstract: 742,982. Knitting - machines. MONK (SUTTON-IN-ASHFIELD), Ltd., S. A. Feb. 23, 1953 [March 21, 1952], No. 4559/52. Class 74(2). The welt bar 26 of a straight-bar machine is moved horizontally towards and away from the needles with the belt fabric and is raised and lowered to facilitate taking and replacing the welt loops from and on to the needles. The horizontal movement is given to the bar 26 by a lever 154 acting through a lost-motion arrangement comprising a pin 254 and slot, and the up and down motion is imparted to the welt bar by a shaft 158 acting through a crank and connecting link 258. The welt mechanism is applied to a machine in which every sinker loop of the initial course is laid over a welt hook and in which alternate loops of that course are removed from the needles, so as to be taken subsequently by welt hooks, by picot points. The welt turning operations are performed during the fashioning cycles by conventional fashioning mechanism. In one form, Fig. 18, the welt bar comprises two parts 15, 16 which can be moved together in taking the welt fabric away from the needles, but which towards the end of the fabric returning movement can be moved relatively to one another to facilitate replacing the loops upon the needles. The one part 15 carries the welt hook 5 and is connected by a spring 18 to the other part 16 which carries a member 10 which removes the loop from the hook 5 and returns it to the correspoiiding needle. In another form, Fig. 19, the welt bar 126 moves as one piece, and each of the welt hooks has a shoulder 106H<SP>1</SP> facing the hook end 106H<SP>2</SP> to facilitate replacement of the loop upon its needle. Each of hooks 145 at the ends of the welt strips 144 is provided with an aperture engaging one end 146a of a coil 146 mounted upon a member 147 by which the hooks 145 can be moved manually towards the needles to receive the welt rod 57, the other end 146b of the coil engaging, as the hooks move away from the needles to take up the rod and welt fabric, a ramp 150a which rotates the coil and frees the hooks from the member 147.
Patent GB-915034-A (GB)
Title: Improvements relating to the coating of aluminium and its alloys
IPC: C23C22/38
Filed: 1960-02-09
Abstract: Aluminium or aluminium based alloys are coated by treating with a solution comprising 5-150 g./l. phosphate (as PO4), 2.5-62 g./l. chromate (as CrO3), 0-55 g./l. aluminium and up to 123 g./l. fluoride as activator, with a pH of 0.5 to 1.5, the phosphate and chromate contents being maintained constant and when the aluminium content of the solution reaches at least 1 g./l. the fluoride content is controlled so that it is correlated to the aluminium content according to Table 1 of the Specification (not shown).  The phosphate and chromate contents are maintained by adding phosphoric and chromic acids and the fluoride by addition of hydrofluoric acid.  After cleaning the substrate in acid or caustic cleaners coating is effected by spraying, dipping or brushing at a temperature up to 180 DEG  F.  The coating may be rinsed in chromic acid of a concentration of 0.02 to 0.1% CrO3, then water rinsed and air dried.  Anions such as sulphates, chlorides, and nitrates may be present in solution and the acidity may be controlled with mineral acids.  Cations other than hydrogen, aluminium and trivalent chromium should be avoided and the F : CrO3 ratio is preferably 0.5 to 3.8.  The aluminium content of the solution is controlled by discarding part of the solution and analyzing for aluminium.  The initial coating solution may contain 1-55 g./l. aluminium and 2.5 to 123 g./l. fluoride or the initial solution may be free of aluminium which is then supplied by solution from the material being coated.
Patent GB-101251-A (GB)
Title: Improvements in Internal Combustion Engines.
Inventor: RUVA DIONIGI
IPC: F02B25/18
Filed: 1916-03-29
Abstract: 101,251. Ruva, D. March 29, 1916. Valves.-Mixture is admitted from the carburettor 21 to a chamber 13 having an inlet 25 for lubricating-oil and a drain 24, and thence is drawn into the crank-chamber through passages leading to two diametrically opposite ports 14, which are uncovered by the piston at the end of the upstroke. The transfer passage 15 is controlled by a sleeve valve 11 rotating about a fixed cylindrical seating 10. The ports 16 occupy nearly half the circumference of the cylinder.
Patent GB-814166-A (GB)
Title: Improvements relating to ventilating and heating arrangements for vehicles
IPC: B60H1/00
Filed: 1958-02-12
Abstract: 814,166. Ventilating vehicles. DAIMLERBENZ A.G. Feb. 12, 1958 [Feb. 16, 1957], No. 4625/58. Class 137 A heating and ventilating apparatus for a vehicle comprises a fresh air inlet downstream of which the ducting is divided into a central duct closable by a valve member and a pair of ducts leading one to the right, and one to the left-hand side of the vehicle and extending level with the side windows and then near the floor, having outlets near the side windows and at the front and rear seats, each outlet being closable by a valve. Downstream of the valve member of the central duct a circulated air inlet, closable by the central duct valve member, is provided, and downstream thereof, a fan, preceded or followed by a heater having a valve member arranged in such a manner that air may be passed through the heater or may by-pass it or may be divided between passing through and by-passing, delivers air, depending on the position of valve members, to windscreen defrosting nozzles, to ducts leading to the region below the windscreen, and to the rear passenger space. As shown, fresh air entering through 4 may pass directly to ducts 7<SP>1</SP>, 7a<SP>1</SP> and 7<SP>11</SP>. 7a<SP>11</SP> and be discharged through openings 8<SP>1</SP>, 8<SP>11</SP> situated near the side windows, and openings 12<SP>1</SP>, 12<SP>11</SP> and 13<SP>1</SP>, 13<SP>11</SP> at the floor near the front and rear seats respectively, all the openings being controlled by valves. The fresh air may also pass through a central duct 14, the amount being controlled by a flap valve 30 which also controls the amount of recirculated air from an inlet 29, and then either through a heater 27 or a by-pass 14a, the amount being controlled by a flap valve 28, to a fan 17 from which the air may be discharged to defrosting nozzles through pipes 18<SP>1</SP>, 18<SP>11</SP>, to the space below the windscreen through pipes 20<SP>1</SP>, 20<SP>11</SP>, and the rear passenger space through pipe 21, the amount of air discharged through these pipes being under the control of individual valves.
Patent GB-270437-A (GB)
Title: Improvements in fluid-tight covers for containers
IPC: B65D51/08
Filed: 1926-02-18
Abstract: 270,437. Druiff & Co., Ltd., E., and Druiff, E. Feb. 18, 1926. Mixers shaken in the hand.-Relates to a fluidtight cover or closure for a cocktail shaker or other container and formed with a rigid or inextensible ring or annular element adapted to engage an annular flange or skirt on the body of the container, the flange being formed of sheet metal to a slightly conical or spheroidal formation and being adapted to yield slightly under radial pressure to accommodate itself to the rigid ring on the cover. According to the invention, the neck or body of the container is flanged laterally beneath and adjacent to the yielding flange to protect its edge from contact with any external body. A slightly conical cap c, Fig. 2, for a cocktail shaker is formed with a reinforced lower edge c<1> and engages over an outer flange a<1> of an annual flange member of substantially inverted V-section, the inner flange a<2> thereof being secured to the cover b of the vessel by a lateral flange which terminates beneath the outer flange a<1>, which may be reinforced by a split ring. A similar joint may be used to secure the cover b, Fig. 1, to the body portion a, the lateral flange being arranged to align the outer flange with the body of the container.
Patent GB-1091345-A (GB)
Title: Process for the preparation of pure ammonium phosphate
IPC: C05B7/00
Filed: 1965-02-03
Abstract: Ammonium phosphate is produced by reacting wet process phosphoric acid, preferably together with recycle mother liquor from a previous processing step, with a source of calcium ions, e.g. CaCO3 or rock phosphate, the proportion of calcium ions being such as to precipitate calcium sulphate while minimizing the formation of calcium phosphate, ammoniating the reaction mixture to precipitate iron phosphate and aluminium phosphate, separating off the solid phase, crystallizing ammonium phosphate from the liquor under conditions avoiding a coprecipitation of F- and SO2-4 salts, including ammonium fluoride and ammonium sulphate, and separating the ammonium phosphate from the liquor, which liquor may be recycled. Crystallization may be carried out in multiple stage units permitting the counter-current movement of crystals and mother liquor.  The "solid phase," detailed above, may be formed into a fertilizer.  The solids formed by reaction of the calcium-ion containing material with the acid may be separated from the liquor before ammoniation.  From 0.01 to 0.5 moles of calcium tin are preferably used per mole of phosphate ion, and the treatment with the calcium compound is preferably at from 120 DEG  to 220 DEG  F. and at a pH from 0-2. From 0.5 to 12 moles of ammonium ion are preferably used per mole of phosphate ion.  The ammonia is preferably added until the solution has a pH between 3 and 8 and the crystallization of the ammonium phosphate solution is preferably carried out at from 120 DEG  to 260 DEG  F. with a moisture loss rate between 2 and 8 moles of water per mole of phosphate ion per hour.  A proportion of 0-10 volumes of mother liquor from the crystallization stage may be recycled per volume of phosphonic acid.  In an example a "solid phase" separated from the liquor after ammoniation comprised: nitrogen (7.13 weight per cent), P2O5 (34.24 weight per cent), Ca (17.4 weight per cent), Fe (2.6 weight per cent), and Al (1.6 weight per cent).  This product is stated to be suitable as a fertilizer.
Patent GB-391281-A (GB)
Title: Improvements in sheet metal pulley
IPC: F16H55/44
Filed: 1932-02-18
Abstract: 391,281. Driving-pulleys. ALLISCHALMERS MANUFACTURING CO., N. 70th Street, Milwaukee, Wisconsin, U.S.A.- (Assignees of Stoll, R. E. ; 355, 70th Street, Wauwatosa, Wisconsin, U.S.A.) Feb. 18, 1932, No. 4832. Convention date, Aug. 8, 1931. [Class 80 (i).] Multi-grooved V- pulleys are built up from sheet-metal plates 3, 4 of two forms only, pairs of plates 4 being juxtaposed to form box- 1 i k e structures. A s shown in the Figure, cylindrically bent portions 7, 8 of the end pair of plates 3 nest together between disc-like portions 6, 9, 10 of the plates. The plates 3 have cylindrical terminating-flanges 15 and the plates 4 disc flanges 20. The portions 9, 10 and the flanges 20 may be spot welded. Two or four of the central plates 4 may be dispensed with to produce a three or two groove pulley, respectively, or additional pairs of plates 4 may be inserted.
Patent GB-469830-A (GB)
Title: Improvements relating to endless chain and like conveyors
IPC: B65G23/44
Filed: 1936-02-18
Abstract: 469,830. Endless chain conveyers. REDLER, A. Feb. 18, 1936, Nos. 4949 and 22763. [Class 78 (i)] The side chains 7 of a conveyer of the en masse type are driven by sprockets 7a at one end of the trough 1 and are guided at the other end by an idler drum 17. The sprockets are of less diameter than the depth of the trough and the conveyer is guided to its return flight by guides 19 in the form of spring plates anchored at one end around a bolt 20a and curved at the other end around the spindle of the sprockets. The latter may be withdrawn and a portion of the trough may be inverted so that the inlet 5 now becomes an outlet and the conveyer is driven in the reverse direction without reversing the drive shaft. The upper flight of the conveyer is partially supported by a baffle 24 and partially by H- shaped fittings 18 carried by rotatable circular cheeks 18b. Modified guiding and tensioning- arrangements for the chains are described, one form including an externally accessible lever, and latching means therefor, for moving the bolt 20a, and another form including jockey rollers bearing on the chains and being carried by spring-biassed levers. A third modified form includes a cranked lever one arm of which bears against the spindle of the sprockets. Specification 440,668 is referred to.
Patent GB-874025-A (GB)
Title: Process for producing water-insoluble azo-dyestuffs on shaped structures of aromatic polyesters, especially of polyethylene glycol terephthalates
IPC: C09B31/14
Filed: 1959-02-12
Abstract: Azo dyestuffs are formed on aromatic polyester fibres, foils, or other shaped structures by applying, simultaneously or in succession, an unsubstituted 4-aminoazobenzene, or a 4-aminoazobenzene substituted by one or more alkyl groups and/or halogen atoms, and a 1-aryl-5-pyrazolone of the formula:-  <FORM:0874025/IV(c)/1> in which R represents an alkyl or carboxylic acid ester group, and then diazotizing and coupling.  The aminoazo compound and the pyrazolone may be applied at 100 DEG C. or higher, the impregnation bath also containing solution promoters and dispersing agents such as diacetone alcohol, methoxybutylacetate, tetrahydronaphthalene, diglycol, butyl alcohol, sulphonated castor oil and alkylarylsulphonates. Diazotization and coupling are effected in the usual manner.
Patent GB-608187-A (GB)
Title: Improvements in and relating to a.c. measuring instruments
IPC: G01R19/22
Filed: 1946-02-18
Abstract: 608,187. Current and voltage measurements and measuring apparatus. WILKINS, S. R., and AUTOMATIC COIL WINDER & ELECTRICAL EQUIPMENT CO., Ltd. Feb. 18, 1946, No. 5007. [Class 37] A multi-range meter incorporates a rectifier whose D.C. output in the absence of an A.C. input is partially, but not completely, reduced by the application of an opposing voltage; this gives the meter a small positive reading for zero A.C. input and makes it incapable of reading accurately below say 0.1 volt A.C., but allows the use of a linear scale at low inputs. As applied to a valve voltmeter A, having 100 per cent negative feed-back over cathode resistance K, the diode rectifier is biassed back over resistance H from the point Z. In a modification, the meter is connected between the cathodes of two cathode follower valves forming, with their cathode resistances, a bridge; the rectifier input is applied to one valve and the other valve acts as a balancing valve so that the meter is not affected by supply fluctuations.
Patent GB-997769-A (GB)
Title: Improvements relating to articulated vehicles
Inventor: MILLS JOHN BLOOR
IPC: B62D49/00
Filed: 1964-02-06
Abstract: 997,769. Articulated vehicles. FODENS Ltd. June 18, 1964 [Feb. 6, 1964], No. 5033/64. Heading B7H. An articulated vehicle comprises a four axle tractor and single axle trailer interconnected by a turntable 8 the centreline 12 of which is arranged between the rear end of the tractor and the centreline 13 of the tractor rear bogie. The loading platforms 10, 11 of tractor and trailer are preferably of the same length.
Patent GB-252443-A (GB)
Title: Improvements in and connected with automatic vent valves for liquid containers
IPC: E03D1/30
Filed: 1925-02-24
Abstract: 252,443. Stone & Co., Ltd., J., and Honey, A. E. Feb. 24, 1925. Air traps.-A float-actuated vent valve particularly applicable for use in connection with the flushing tanks for closets provided on railway vehicles has a rubber valve member with a convex contacting surface mounted on top of a vertically movable float and is guided to have a limited descent. The float o is formed in two halves soldered or brazed together and is strengthened internally by end plates o<1> and a central tube o<2>. The guide rod l which passes through the valve member and float where it is secured by a split pin p works through a perforated boss j formed on or secured to the cover g and has a flange m to limit the fall of the float. The casing a is only slightly larger in diameter than the float and is fitted at the bottom with a perforated baffle plate e. In a modification the plate e is replaced by a coned plate adapted to direct the water on to the bottom of the float. In one application the device is applied to a closed flushing tank permanently open to the supply and having an outlet to the closet pan controlled by a flushing valve of the kind maintained in its open position until the rush of water ceases.
Patent GB-1196102-A (GB)
Title: Frequency Comparator Circuit
Inventor: MORTIMER CHARLES WILLIAM
IPC: H03B21/00
Filed: 1968-02-01
Abstract: 1,196,102. Frequency comparators. KEELAVITE HYDRAULICS Ltd. 26 Feb., 1969 [1 Feb., 1968], No. 5163/68. Heading H3A. [Also in Division G3] A frequency comparator for evaluating the difference between the frequencies of two pulse signals applied on lines X, Y comprises gating means G4, G5 controlled to block, on each line, the first pulse and pass each subsequent pulse of a series arriving on the line uninterrupted by a pulse on the other line, and means G6 for combining the pulses passed along the two lines. The gates G4, G5 are controlled by a bi-stable circuit FF, the inputs of which are coupled to points on the lines. Assume initially bi-stable FF is in its " set " state, closing gate G4 and opening gate G5. If a pulse occurs on line X this will not pass through gate G4, but will reset bi-stable FF to open gate G4 and close gate G5. If the next pulse to occur is on line X it will pass through gate G4 to the output. If the next pulse is on line Y it will be inhibited by gate G5, but will again set bi-stable FF to open G5 and close G4. Thus if the two frequencies are the same, no pulses are fed to the output. If the frequency on line X is greater than that on line Y, the bi-stable FF will be mainly in its reset state and gate G4 will pass the X line pulses to the output, with the exception of the first X line pulse to follow a Y line pulse. If the Y line frequency is the greater, the converse will obtain, with the bi-stable being mainly set. The outputs from the two gates are combined in OR gate G6 and fed to a counter (not shown) which counts forwards or backwards depending on the state of bi-stable FF. In order to prevent simultaneous signals arriving at gates G4, G5 further gates G2, G3 are provided which are inhibited by AND gate G1 if simultaneous signals occur. The input signals are suitably shaped by triggers VST1, VST2 and monostables S1 S2, S3, S4. The circuit may be formed from NAND, NOR logic, Fig. 2 (not shown). The comparator is used in a motor speed control system (see Division G3).
Patent GB-105571-A (GB)
Title: Apparatus for Treating Ores and other Materials.
Inventor: HOVLAND HENRY BERT
IPC: B03D1/02
Filed: 1916-05-30
Abstract: 105,571. Hovland, H. B. June 17, 1915, [Convention date]. Continuous-discharge apparatus with circulating- devices.-Ore pulp is sulphated and then sulphided, and the sulphides are subsequently separated by flotation, the reacting gas being circulated through the interior of agitators which maintain a circulation of the materials in the reaction chambers. The ore is fed to a chamber 6 divided by partitions 5 into compartments 4 communicating at the top and bottom and each containing an agitator comprising a head with radial passages therein carried by a hollow stem 12, through which gas is drawn down from openings 13 and circulated through the liquid, the agitators being driven through friction wheels 15 from a pulley 17. A further treatment chamber E is divided into communicating compartments containing agitators 11 similar to those in the vessel 2 but having the hollow stems open at the top. Specification 100,681 is referred to.
Patent GB-556921-A (GB)
Title: Improvements in or relating to circuit arrangements for selector switches for use in automatic telephone or like systems
IPC: H04Q3/00
Filed: 1942-04-20
Abstract: 556,921. Automatic exchange systems. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., and BAKER, G. T. April 20, 1942, No. 5218. Drawings to Specification. [Class 40 (iv)] The description is identical with a part of that in Specification 556,922. The claims relate to the feature that the movable springs corresponding to one or more outgoing groups are multipled together and connected to one circuit and those corresponding to one or more other groups are multipled together and connected to another circuit so that subsequent controls depend on the level selected. Specifications 549,047, 551,187, 556,919 and 556,920 also are referred to.
Patent GB-1092711-A (GB)
Title: Improvements relating to cascode amplifying circuits
Inventor: HALE RODNEY BARKER
IPC: H04N5/14
Filed: 1964-02-07
Abstract: 1,092,711. Cascode amplifier. ELECTRIC & MUSICAL INDUSTRIES Ltd. Jan. 27, 1965 [Feb. 7, 1964], No. 5245/64. Heading H3T. A cascode amplifier comprises a thermionic valve V 1  connected in grounded cathode configuration, a transistor T1 connected in grounded base configuration, the anode of said valve being connected to the emitter of the transistor, wherein an additional direct current path is provided from the anode of the valve to the H.T. line by a resistor R1, the impedance of the resistor being large compared with the emitter input impedance of the transistor, the arrangement being such that the valve operates with a higher mean current level than the transistor. As shown an input signal from a television camera tube is applied to the input of the valve via inductor L1 serving to peak the response at high frequencies. The output from transistor T1 collector directly feeds transistor T2 which acts as an emitter follower to feed transistor T3. The emitter of resistor R14 of T3 is common to the grid resistor R4 of the valve to apply negative feedback to the valve and a capacitor C7 connected to the emitter resistor R14 applies feedback to the collector of transistor T2 to counteract the Miller effect.
Patent GB-1451416-A (GB)
Title: Cable joint box
IPC: H02G15/013
Filed: 1974-02-05
Abstract: 1451416 Sealing cable joints DRAKA KABEL BV 5 Feb 1974 [16 Feb 1973] 05351/74 Heading H2E A cable joint is sealed in a casting box comprising a base member having open U-shaped ends and two end-sealing members 5 engaging the ends to define apertures for receiving and sealing around the cable joint, complementary teeth 7, 4 being on the open ends and sealing members for effecting the engagement. Each end of the base member has a guide 3 with teeth 4 in which an end plate 5 engages, circular portions 9, 10 forming an aperture which, with rubber &c. packing, fits around the cable(s) to form a sealed mould into which casting resin is poured. A cover (not shown) is fitted to the open top of the mould. In a variation ; the teeth face inwardly of the base member and outwardly of the end plates (Figs. 6 and 7).
Patent GB-540487-A (GB)
Title: Improvements relating to the protection of metallic surfaces in contact with sea water and similar liquids
IPC: C25D9/08
Filed: 1940-03-27
Abstract: 540,487. Preventing incrustation and corrosion. COX, G. C. March 27, 1940, No. 5527. [Class 123 (i)] [Also in Group XXXVI] Corrosion and fouling of metal surfaces in contact with seawater or waters containing calcium and magnesium salts is prevented by providing the surfaces with a coating of basic calcium and magnesium compounds by passage of an electric current through the water, the metal surface being the cathode. The hulls. of ships may be treated while the ships are moving, anodes of iron or graphite being trailed in the water at distances of five to thirty feet from the metal surface. The current density is 0.03 to 0.4 amperes per sq. ft. of cathode surface. As new layers of the coating are formed underneath previously deposited layers, fouling may be removed by building up the coating until the outer layers flake off or can be removed by scraping or movement of the vessel through the water. The process is applicable also to stationary marine structures, tanker compartments, brine tanks, &c.