baber/WOPTO huggingface dataset:
Patent GB-681168-A (GB)
Title: Improvements in or relating to the coulier or draw mechanism of straight bar knitting machines
IPC: D04B11/00
Filed: 1949-07-09
Abstract: 681,168. Knitting. COLTON, L. H. (Thiede, W.). July 9, 1949. No. 18222/49. Class 74 (ii). Draw mechanism for a straight-bar machine, adapted to knit fabrics of varying width, includes at least two draw cams affording two different amplitudes of stroke for reducing the speed of the slurcock, and thereby the thread laying speed, during the knitting of a portion of fabric of reduced width, without reducing the number of courses knit per unit time. During knitting of the heel onwards of a stocking, rollers 6, 7 on a reciprocating bar 10 coupled to the slurcock draw arm may be slid along their pins 8, 9 off a cam 4, which provides full traverse during knitting of welt and leg, on to a cam 5 which gives a reduced traverse. Jack sinkers outside the width of the foot may have butts 24 lower than the butts 25 of jack sinkers within the width of the foot: whilst knitting is taking place only over the reduced width, the downward movement of the catch bar 27 is limited to the broken line position 28 and the jack sinkers with the low butts 24 are left in their forward positions. The dividing sinkers have butts 26. Alternatively, all jack sinker butts may be of the same height and those parts of the bottom edge of the catch bar outside the foot width be higher than the remainder, the extent to which the catch bar drops determining whether all, or only the foot section jack sinkers should be withdrawn ; or a withdrawable slurcock may be used.
Patent GB-642853-A (GB)
Title: Improvements in or relating to remote control means for valves
Inventor: TURTLE RUPERT CLIFFORD
IPC: F16C1/10
Filed: 1948-07-07
Abstract: 642,853. Bowden mechanism. ARENS CONTROLS, Ltd. July 7, 1948, No. 18269. [Class 80(iii)] [Also in Groups XXVII, XXIX and XXXI] A valve (see Group XXIX) is actuated by a pedal lever 1, Ó rod 19 pivotally connected to the pedal and slidable in a pivoted guide sleeve 21, and a flexible transmission connected between the rod 19 and the valve. Depending from the pedal is a tube 11 which carries a locking collar 12 spring- urged against a stop to mask an enlarged portion of a slot in the tube. The latter is provided with a seating for the spherical head 10 of rod 19, the head being engaged in the tube after raising collar 12 so as to uncover the enlarged portion of the slot. The pivot of sleeve 21 comprises a spherical enlargement 22 on the sleeve which seats on a complementary washer 25 having a bayonet joint connection with a depending tube 23. A further washer 28 is spring urged into engagement with the top of the enlargement 22. The upper end of'sleeve 21 is sealed by a felt washer and a cap 31. The lower end of rod 19 acts on the core of the flexible transmission, this core comprising a multi-strand cable 14, reinforced with strip material and one or more coiled casings 15. The outer part of the flexible transmission abuts against sleeve 21 and it comprises coiled wires or strips 16, 17 and a protective covering 18. A simplified modification of the arrangement shown is described.
Patent GB-1115666-A (GB)
Title: Improvements in and relating to the starting of dynamo-electric machines in hydro-electric stations
Inventor: STRONGMAN CHARLES PERCIVAL
IPC: H02P1/16
Filed: 1966-04-26
Abstract: 1,115,666. Control of A.C. motors; transmitting mechanical power. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 14 April, 1967 [26 April, 1966], No. 18293/66. Headings H2H and H2J. In a pumped storage hydro-electric system, a dynamo-electric machine A is coupled to a turbine-pump 5 which is driven by water flow from a storage source so that the machine A operates as a generator, or the unit 5 is driven by the machine A to pump water to a storage level. A second dynamo-electric machine B acts as a generator to start the machine A as a motor when circuit-breaker 9 is closed to interconnect armatures 1, 6, and circuit-breakers 2, 7, are opened to disconnect the machines from the mains. Direct-current is then supplied to field windings 4, 10. Guide vanes 20 are opened slightly to admit water to a turbine-pump 11 at a rate which is insufficient to start the machine B from rest but is sufficient for running under no-load conditions. Lubricant is then supplied through a valve from source 14 to thrust bearing 13 to reduce the static friction and allow a moderate acceleration which is suitable for synchronizing the machines A and B. When the machine A reaches normal operating speed, the armature winding 1 is connected by switch 2 to network 3 and the unit 5 is driven for pumping operation, the machine B being disconnected and brought to rest. The two machines may be interconnected through transformers. A number of machines A may be associated with an equal or different number of machines B, and any machine B may be used to start any machine A.
Patent GB-296851-A (GB)
Title: Improvements in down-draught bafflers and ventilators for water-heaters of the geyser and like types
IPC: F24H9/20
Filed: 1927-07-09
Abstract: 296,851. Hall, C. L., and Hall, D. July 9, 1927. Forced ventilation. - A combined ventilator and down-draught baffle for water heaters consists of an open-bottomed casing A surrounding the upper end of a flue pipe D and containing baffling means ir. the form of an inverted cone H above the top of the pipe D, an annular plate fixed to the top of the pipe D, and a second annular plate B disposed adjacent to the casing wall intermediate of the upper annular plate and the lower edge of the casing. A discharge pipe F is mounted on the upper end of the casing A.
Patent GB-600327-A (GB)
Title: Improvement in directive antennae
IPC: H01Q19/12
Filed: 1945-07-17
Abstract: 600,327. Aerials. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. July 17, 1945. No. 18341. Convention date, Jan. 22, 1944. [Class 40 (vii)] A directive antenna system for operation over a band of frequencies comprises a parabolic reflector having a focal length F substantially equal to one-fifth of the wavelength at the lower limit of the frequency band and a broad-band radiator element with its centre disposed substantially at the focus of the reflector. The width of the mouth of the reflector is preferably about twice the wavelength corresponding to the low-frequency limit of the band. As shown in Fig. 1, a broad-band radiator 5 has its centre located near the focus of a cylindrical parabolic reflector 1 having one end wall 3 and the apex portion 9 formed of perforated sheet metal. The wing portions are formed by parallel wires 11 secured to tubular frame members defining the edges of the reflector. The wires and perforated sheets may be replaced by solid sheets. The broad-band reflector 5, Fig. 2, formed as a conductive cylinder whose length (L) and diameter (D) are approximately equal, is supported by a coupling member 23 having an outer conductor 25 carrying a plate 27 which is secured to the wall 3. The coupling member 23 has a member 19 secured to the bottom wall 17 of the radiator 5 and in contact with an inner conductor 21. The lower end of the coupling member is secured to the end of a coaxial cable (not shown) by a complementary coupling device. For a system designed to operate over a frequency range of 350 to 725 megacycles, the optimum focal length is seven inches, i.e. one-quarter of the wavelength at 423 megacycles and 0.208 of the wavelength at 350 megacycles. Suitable dimensions for the width of the mouth of the reflector and for the broad-band radiator 5 are also quoted.
Patent GB-498597-A (GB)
Title: Improvements in or relating to differential or balance gearing and apparatus embodying same
IPC: E01C19/26
Filed: 1937-07-01
Abstract: 498,597. Differential gearing. WALLIS & CO. (LONG EATON), Ltd., and CROWE, N. J. July 1, 1937, No. 18343. [Class 80 (ii)] [Also in Group I] A power-driven grass or land roller has two rolls 10, located closely adjacent each other on a driving shaft 11, and driven through bevel differential gearing comprising two side-wheels 28, fast to the respective rolls, and a spider 25, fast on the driving shaft 11. Reference has been directed by the Comptroller to Specification 8002 /01, [Class 6].
Patent GB-357142-A (GB)
Title: A means for extracting broken screws, nails and the like
IPC: B25B27/18
Filed: 1930-06-16
Abstract: 357,142. Extracting broken screws &c. WILLIS, A. B., Glendower, Mennaye Road, Penzance, Cornwall. June 16, 1930, No. 18351. [Class 61 (iii).] Broken screws &c. are removed from wood, ebonite, fibre, &c., by cutting a core 8 round the screw &c. 6 by means of a tubular cutter 1 provided with cutting teeth 2 and then removing the core by means of a polygonal tubular member 4 bell-mouthed at 5 and driven down the space 7 to grip the core tightly so that it can be broken off by twisting the tube with a spanner.
Patent GB-1472531-A (GB)
Title: Electrochemical machining
IPC: B23H3/02
Filed: 1974-07-16
Abstract: 1472531 Electrolytic machining DEFENCE SECRETARY OF STATE FOR 16 July 1974 [17 April 1973] 18410/73 Heading C7B A metallic workpiece which forms a passive coating when electrolytically machined in water is instead machined using an electrolyte comprising an ionizable substance dissolved in a polar non-aqueous solvent which may contain up to 20% w/v of water, at a machining c.d. of at least 13.5 mA/mm<SP>2</SP>. The metal may be Ti or an alloy e.g. Cr 20/Ti 2.5/Al 1.6/Co 18/Ni balance or Ni 38/Mo 5À5/Ti 13/Fe balance, in wt per cent. The ionizable material may be HCl, ZnCl 2 , MgCl 2  or HBr dissolved in dioxane, formamide, tetrahydrofuran or methanol.
Patent GB-347947-A (GB)
Title: Improvements in or relating to devices for testing brakes on cars and other road vehicles
IPC: G01L5/28
Filed: 1930-06-16
Abstract: 347,947. Dynamometrical testing of vehicle brakes. SCRUBY, H. F., 810, Benedict Canyon, Beverly Hills, Los Angeles, U.S.A. June 16, 1930, No. 18423. Convention date, July 5, 1929. [Class 106 (ii).] A device for testing vehicle brakes comprises a horizontal platform adapted to be driven over by the vehicle wheel, fluid pressure indicating means adapted to hold the indication until released and resisting movement of the platform, and means operated by the wheel for releasing the indicator. The vehicle is run on to four spaced platforms, one for each wheel. Each platform B is provided with slots 14 through which pass bolts 13 which pass through holes in a frame A provided at one end with a shallow box and at the other end with a ramp 16. The platform is adapted to slide on balls 15 in the top of the frame. A depending lug 23 engages the ball end 22 of the shorter arm of a two-armed lever on a pivot 21, the longer arm 20 of which engages the end of a spring plunger 19 in a small cylinder 19<1>. Each cylinder has a pipe 24 leading to a pressure indicator 25 adapted to hold the highest indication reached. In use, the vehicle is run on to the platforms and the brakes applied, causing the platforms to slide and the pistons 19 to compress air in the cylinders. The valve 32 is lifted and air enters the gauge. Just prior to mounting the platforms the vehicle passes over a spring-mounted member E having underneath a projection which is forced against a diaphragm causing air to be compressed in a pipe 42 and a piston 47 to press back the stem 46 of a spring relief valve for the gauge which is placed momentarily in communication with the atmosphere through the port 48. After the readings have been taken, the part E is again depressed by the vehicle in leaving the platforms and the gauges are again momentarily placed into communication with the atmosphere.
Patent GB-961769-A (GB)
Title: Improvements relating to non-specular reflectors
Inventor: BEACROFT JOHN FERDINAND
IPC: G02B5/08
Filed: 1962-05-14
Abstract: 961,769. Reflecting surfaces. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. May 1, 1963 [May 14, 1962], No. 18501/62. Drawings to Specification. Heading F4R. [Also in Division G2] The envelope of an electric projector lamp includes a spherical, non-specular metallic reflector formed (see Division G2) by pressing a backing member having a random or uniform pattern of surface irregularities into contact with a reflection surface until those irregularities appear in the surface.
Patent GB-789754-A (GB)
Title: Improvements in diisocyanate modified polyester foams
IPC: C08G18/42
Filed: 1955-06-28
Abstract: A foam is made by reacting together (a) a liquid polyester derived from a straight chain saturated dicarboxylic acid (which may contain 1 or 2 ether oxygen atoms), a di-, tri- or higher polyethylene glycol and an aliphatic polyhydric alcohol containing 3 or more hydroxyl groups and the sum of whose acid and hydroxyl numbers is preferably 30-140; (b) a mixture of 2,4- and 2,6-toluene diisocyanates; (c) a tertiary amine catalyst; and (d) a small amount of water.  Specified tertiary amines are pyridine, collidine, lutidine, methyl morpholine, triethylamine, 2 - cyanoethyl - 2 - diethylaminoethyl ether, 2 - morpholinylether - 2 - cyanoethyl ether, 2 - (t-morpholinylethoxy) tetrahydropyran and 2-diethylaminoethylacetate; salts of these amines with long-chain fatty acids (e.g. oleic or ricinoleic); esters of hydroxy amines (e.g. 2-diethylaminoethanol) e.g. with adipic acid; and reaction products of hydroxytertiary amines (e.g. hydroxyethylmorpholine, triethanolamine or diethylethanolamine) with isocyanates (e.g. phenyl isocyanate, tolyl isocyanate or 2,4-toluene diisocyanate).  For producing foams of uniform and small bubble size foaming may be effected in presence of reaction products of long chain fatty acids (e.g. oleic or ricinoleic) with amines, e.g. diethylamine, triethylamine, C6H5NHCO2N(CH2CH3)2\t or <FORM:0789754/IV (a)/1> or in presence of salts of ricinoleic acid or non-ionic wetting agents, e.g. CH3(CH2)7C6H4O(CH2-CH2O) 15H.  In examples, foams are made by mixing together a commercial mixture of 2,4-and 2,6-toluene diisocyanates, a tertiary amine and a polyester made from (1) adipic acid, diethylene glycol and glycerol; (2) dimethyl adipate, diethylene glycol and glycerol; (3) adipic acid, triethylene glycol and pentaerythritol; (4) diglycolic acid, triethylene glycol and pentaerythritol; (5) adipic acid, diethylene glycol and sorbitol; (6) adipic acid, diethylene glycol and trimethylol propane; (7) adipic acid, diethylene glycol and pentaerythritol; (8) sebacic acid, triethylene glycol and pentaerythritol; (9) glutaric acid, diethylene glycol and pentaerythritol; (10) succinic anhydride, triethylene glycol and triethanolamine; (11) adipic acid, diethylene glycol and a triol of formula <FORM:0789754/IV (a)/2> (12) succinic anhydride, diethylene glycol and pentaerythritol; (13) azelaic acid, polyethylene glycol (M.W. 400) and pentaerythritol; (14) ethylene bis-(glycolic acid), diethylene glycol and trimethylolethane; (15) adipic acid, diethylene glycol and trimethylol ethane; (16) adipic acid, diglycolic acid, diethylene glycol and pentaerythritol.  Polyhydric alcohols mentioned in addition to those exemplified are erythritol and dipentaerythritol.  Specifications 779,077 and 787,760 are referred to.
Patent GB-274282-A (GB)
Title: Improvements relating to light-reflecting devices particularly for use on bicycles or other vehicles
IPC: B62J6/20
Filed: 1926-07-26
Abstract: 274,282. Johnson, E. M., Sellicks, G., and Hincks, J. July 26, 1926. Reflectors. - A light-reflecting device for use on bicycles &c. consists of a reflector A having a translucent red disc G attached to and suspended a short distance from the reflector by several arms e, the disc being of smaller diameter than the reflector A. The reflector A may be curved and the arms e maycarry a ring f in which the disc G is mounted.
Patent GB-653359-A (GB)
Title: Improvements in or relating to tripolymers
IPC: C08F214/08
Filed: 1948-07-12
Abstract: A tripolymer is made by polymerizing a mixture of monomeric materials consisting of 75 to 90 per cent by weight of vinylidene chloride, 5 to 15 per cent of vinyl chloride and 5 to 15 per cent of an alkyl acrylate, preferably methyl or ethyl acrylate, the vinylidene chloride and alkyl acrylate being gradually added to the vinyl chloride during polymerization.  Preferably the polymerization takes place in aqueous emulsion, the additions being made to an emulsion of vinyl chloride.  Polymerization may also be effected in solution in a solvent such as acetone, in aqueous suspension in the presence of a colloidal material such as gelatine, bentonite clay or polyvinyl alcohol, or in the absence of any solvent or diluent.  The polymerization may take place in the presence of actinic light as well as the peroxy catalysts normally used for the polymerization of vinyl and vinylidene compounds, examples describing the use of potassium persulphate and caprylyl peroxide.  The hydrogen ion concentration of the polymerization mixture may be controlled by the use of a buffering substance which may be sodium bicarbonate, sodium carbonate, disodium phosphate, trisodium phosphate, lead acetate, ammonium hydroxide, sodium hydroxide or an aminosubstituted alcohol such as 2-amino-2-methyl-1-propanol.  When polymerization is carried out in aqueous emulsion any of the normal emulsifying agents may be employed, such as sodium oleate, sodium myristate, potassium palmitate, ammonium stearate, ethanol amine laurate, rosin or dehydrogenated rosin soaps, but preferred emulsifiers are the synthetic saponaceous materials such as sodium lauryl sulphate, sodium cetyl sulphate and the dioctyl ester of sodium sulphosuccinic acid.  Polymerization is preferably effected in the absence of oxygen and at a temperature of from 0 DEG  C. to 100 DEG  C., preferably 20 DEG  to 70 DEG  C.  A seed latex may be added to the polymerization mixture to obtain polymerization on the seed particles.  The polymers formed may be used as films, filaments or protective coatings and the latices prepared may be used as adhesives.  Plasticizers, pigments and stabilizers may be incorporated in the products, which may also be mixed with other synthetic resins and rubbers such as a butadiene-1,3-acrylonitrile copolymer.  The Specification as open to inspection under Sect. 91 refers also to the production of the tripolymers by a process in which the starting materials contain all the monomers to be polymerized. This subject-matter does not appear in the Specification as accepted.
Patent GB-469512-A (GB)
Title: Method and apparatus for the roasting of mineral sulphides
IPC: C22B1/10
Filed: 1936-07-06
Abstract: <PICT:0469512/III/1> In the roasting of sulphide ores in suspension, the heat necessary for the roasting being provided wholly or in part by the combustion of the sulphur content of the ore, preliminary drying of the latter is effected, by heat derived from the combustion stage, in a plurality of steps, the moisture-laden gases from the respective steps being either returned to the combustion chamber for attemperating purposes or evacuated to the atmosphere according to the thermal value and the moisture content of the charge.  As shown, a combustion chamber 8, into which finely divided dried ore and an oxidizing gas, such as oxygenated air, are introduced through a nozzle 20, is surmounted by superposed drying hearths 2, 5, the former being enclosed by a sealing cover 70 which is fitted with a feed shoot 69 having a pivoted self-charging valve 75.  The lower drying chamber receives hot gases direct from the combustion chamber 8 through the space 6 around the central rabble shaft 4 while a conduit 32, fitted with a valve 21 is provided for the supply of an adjustable quantity of hot gases to the upper drying chamber 72.  The ore passes from the hearth 2 to the hearth 5 through drop-holes 3 and when fully dried, is delivered to a grinding-mill 17 from which it is raised by an elevator 18 to the hopper 19 supplying the nozzle 20. The gases leaving the upper and lower drying chambers are either evacuated to atmosphere by way of valve controlled pipes 37, 35, 33 and a dust separator 28 or returned to the combustion chamber to lower the temperature therein through pipes 37, 35 and nozzle 20. The upper drying chamber is also provided with a valve-controlled outlet 52 leading directly to the atmosphere. Below the combustion chamber 8 are arranged receiving hearths 9, 11, 77 which provide a chamber discharging through a valve-controlled shoot 13 to a bin 15 and a lower chamber 39 in which the roasted particles received from the upper chamber may be sulphated before being delivered by a screw-conveyer 78 to a bin 14.  The main body of the combustion gases passes off from the chamber between the hearths 9, 11 through a conduit 27 fitted with a two-way valve 26 by which all or a part of the gases may be diverted from a conduit 12 leading to a waste-heat boiler 76 to a heat-exchanger 46 through which the oxidizing gas for the nozzle 20 is forced by a fan 47.  The gases leaving the boiler 76 may be passed to atmosphere through the dust separator 28 or returned to the combustion chamber for attemperating purposes through pipe 33 and nozzle 20.
Patent GB-974003-A (GB)
Title: Improvements in or relating to twin-lens photographic cameras
IPC: G03B13/20
Filed: 1961-05-24
Abstract: 974, 003. Twin lens cameras. FRANKE & HEIDECKE G.m.b.H., [trading as ROLLEI-WERKE FRANKE & HEIDECKE]. May 24,1961 [July 15, 1960], No. 18720/61. Heading G2A. In a. twin lens reflex camera two setting knobs are provided on the front of the camera with their rotational axes in a plane passing between the two objectives, one of the knobs being connected to the diaphragm and shutter speed setting mechanism of the taking objective while the other knob is coupled to the focusing lens mounts of the objectives. As shown in Fig. 2, the rear members of focusing lens mounts 9, 10 are secured to the front wall 1 of the body frame of a twin lens camera, the mount 9 for the taking objective being carried by the housing 11 of a between lens shutter which also includes an adjustable diaphragm. Two setting knobs, of which only the focusing knob 30 is shown, are carried by a housing 27 which is secured to the camera body and carries bayonet rings 28, 29 for accessories such as filters or supplementary lenses and may also carry the photo-cell of an exposure meter. The knob 30 has a tongue 31 which fits into a driver slot 22 on a shaft 21 of a pinion 20, Fig. 1, which meshes with a toothed segment 34 on a disc 15 having a sleeve 14 adjustably secured to the movable front member of the taking objective mount 9. A link 26 connects the disc 15 to a sleeve 23 adjustably secured to the movable front member of the viewfinding objective mount 10. A knob similar to knob 30 engages the driver slot 32 of shaft 33 for rotating a pinion 35 in mesh with teeth 19 on the shutter casing for adjusting in a fixed programme the shutter speed and diaphragm aperture.
Patent GB-1240757-A (GB)
Title: Improvements in current leak protection in electrolytic machining apparatus
IPC: B23H3/10
Filed: 1969-04-11
Abstract: 1,240,757. Electrolytic machining. GENERAL ELECTRIC CO. April 11, 1969 [May 29, 1968], No. 18755/69. Heading C7B. An electrolytic machining e.g. drilling apparatus comprises a workpiece 20 and tool 22 (with electrode 21 located within) connected to separate terminals of a power (e.g. 300-750 volts. D. C. or A. C. ) supply 10, an electrolyte reservoir 30 with conduits for supplying electrolyte to the tool, and preferably for returning the used electrolyte e.g. discharged from a holding fixture 23 back to the container, a plurality of control means e.g. valves V1, V2 (and preferably V3) with a filter 40 interdisposed within the conduits for controlling the electrolyte flow, and a plurality of current by-pass leak paths 14, 16 randomly attached to the control means, preferably with the other common end connected to one (unearthed) terminal of the power supply, for protecting from current leaks and preventing excessive heating of the electrolyte.