baber/WOPTO huggingface dataset:
Patent GB-1393403-A (GB)
Title: Method of utilizing a impure sulphuric acid solution obtained  as waste and containing impurities for the preparation of  fertilizers
IPC: C05C13/00
Filed: 1972-06-19
Abstract: 1393403 Fertilizers from impure sulphuric acid; ammonium sulphate KEMIRA OY 19 June 1972 [18 June 1971] 28654/72 Headings C1B and C1A The invention relates to a process for the preparation of a fertilizer in which impure sulphuric acid is treated with an aqueous solution containing ammonia and optionally ammonium or other salts (e.g. ammonium nitrate) and/or urea, the impure sulphuric acid having been obtained from a manufacturing process for the production of sulphuric acid comprising the sequential steps of: (1) roasting sulphide ores to produce sulphur dioxide, (2) purifying the sulphur dioxide by passing the gas through gas scrubbers containing a scrubbing liquid, (3) oxidizing the purified sulphur dioxide to sulphur trioxide, and (4) dissolving the sulphur trioxide in water to produce sulphuric acid, by removal of the scrubbing liquid containing impure sulphuric acid from the gas scrubbers. The fertilizer solution obtained may be concentrated by evaporation and other fertilizer ingredients, such as monoammonium phosphate and potassium salts, slurried therein.
Patent GB-172591-A (GB)
Title: Improvements in or relating to clocks, watches, and like instruments
IPC: G04B19/20
Filed: 1920-06-29
Abstract: 172,591. Jackson, W. J. Mellersh-, (Soc. Anon d'Horlogerie et Bijouterie de Geneve). June 29, 1920. Dials.-In clocks, watches, &c. of the type in which a movable dial is arranged to rotate intermittingly in one direction beneath a fixed masking dial by means of a force which is stored up during the time the movable dial is stationary, the movable dial is mounted concentric with the fixed dial and is periodically operated by means of a cylinder escapement and a spring tension device. Fig. 2 shows a movable dial of the ring type having teeth on the inner side which teeth are arranged in two series y, z at different levels and adapted to pass through slots g<1>, g<2>, Fig. 3, of a cylinder escapement g as it is rotated through gearing from the cannon pinion 5. This pinion also drives a gear e", Fig. 5, to which is attached one end of a spring f<2>, the other end being attached to a roller d having pins d<8> which engage with the teeth of the ring dial. While the ring dial is held stationary by the cylinder escapement, the roller d is held and the spring f<2> is tensioned causing, when the ring dial is released, the roller d to move the dial with a jerk. In a modification, the spring is mounted between the cannon pinion and a concentric gear. A central disc dial may be provided which may show the hours from 1 to 12 through a second aperture in the masking-dial. The apparatus may, instead of showing the hours &c., show the dates, months, &c., or phases of the moon &c.
Patent GB-722991-A (GB)
Title: Improvements in and relating to apparatus for controlling machines operating upon continuous stationery
Inventor: GARWOOD VICTOR WILLIAM
IPC: B41L1/00
Filed: 1949-11-09
Abstract: 722,991. Memorandum appliances ; decollating machines. LAMSON PARAGON SUPPLY CO., Ltd. May 18, 1951 [Nov. 9, 1949], No.28748/49. Class 16. [Also in Group XVI] The feed of webs of continuous stationery, such as that used in tabulating, addressing and like printing machines, to an apparatus which separates the individual webs from one another and delivers them to separate receptacles, is controlled in accordance with the amount of web that has been accumulated in a loop of the web. As shown, superposed webs a, delivered from a tabulating or like machine, are fed by pins on a feed member c around a roller 3 to an apparatus b which separates the individual webs and delivers them to individual containers in which the webs are refolded into packs, the apparatus also including, if desired, means to remove the marginal edges of the webs before they are separated and refolded. The roller 3 is carried by a shaft provided with pinions 5 at each end engaging racks 2. The roller 3 is connected to cords 12 carrying counterweights 13 slidable on rods 14, such that the roller 3 being heavier than the counterweights falls under gravity as the length of the web loop around the roller increases. The feed member c is normally inoperative, but is rendered operative when an actuating member on the roller 3 operates an arm 18 to tilt a mercury switch 15 which completes an electric circuit to start the feed member c. When the loop around the roller 3 diminishes in length sufficiently, one of the counterweights 13 rocks an arm 20 of the switch 15 to break the electric circuit and thus stop the member c. Alternatively, the switch may be mounted adjacent the top of racks 2, or instead separate switches may be provided at the top and bottom of the racks for causing starting and stopping of the member c, such switches being operated by one of the counterweights or the roller 3.
Patent GB-825116-A (GB)
Title: Improvements in air guns
IPC: F41B11/73
Filed: 1957-09-12
Abstract: 825,116. Air guns. WEBBY, C. N. Sept. 12, 1957 [Sept. 19, 1956], No. 28752/57. Class 119 Relates to an air gun having an air compression cylinder in which air is compressed and pumped to a storage chamber from which it is released to expel the projectile. According to the invention, the storage chamber 28, Fig. 5, is arranged at the inner end of the cylinder 1 and a low pressure chamber 13, Fig. 4, from which the air is pumped, is located between the closed outer end 8 of the cylinder 1 and an outer piston head 12 carried by a piston rod 7. A bore 11 extends throughout the length of the rod 7, through the outer piston head 12 and through an inner piston head 31, Fig. 5, on the inner end of the rod 7, a low pressure non-return valve 14 being located in the head 12 and a high pressure check valve 39 in the head 31. The arrangement is such that on moving the piston rod towards the inner end of the cylinder air is drawn into the low pressure chamber 13, and movement of the rod in the opposite direction then forcing air from the chamber 13 through the valve 14, the bore 11 of the piston rod and through the check valve 39 and finally through a non-return valve 27 to the storage chamber 28. Reciprocation of the piston rod is effected by a hand piece 3, Fig. 4, engaging in an enlarged central portion 6 of the rod and movable in a longitudinal slot 2 in the cylinder 1. The piston head 12 has an annular groove 15 in which is located a low pressure O-ring 16 as a loose-fit, the outer or forward face of the O-ring being formed with raised portions or studs so that air can be drawn into the chamber 13 past the O-ring whereas, air from the chamber 13 cannot in reverse pass the O- ring. The inner piston head 31 is made of a rubber composition and has a tapered hole 36 which splays towards the non- return valve 27 so as to provide flexible lips. The tapered portion of the head 31 is arranged to fit over a head part 44 of the non-return valve 27, the valve head 44 having a bevelled sealing surface 45 making a seal on a complementary bevelled surface of the cylinder 1. The head 44 is also provided with a sealing ring 47 which bears against an annular shoulder on the cylinder 1 to ensure that air under pressure from the storage chamber 28 does not return to the inner piston head 31. The piston rod 7 at its reduced portions is bound round with a helically arranged oiling wick 21.
Patent GB-411020-A (GB)
Title: Improvements relating to apparatus for straightening metal wires and rods
IPC: B21F1/02
Filed: 1933-10-18
Abstract: 411,020. Straightening wire. GILSON & CO., Ltd., D., and WRIGHT, A. F. J., Billet Road, Walthamstow, London. Oct. 18, 1933, No. 28887. [Class 83 (iv).] In an apparatus for straightening wire dies a<2> are mounted in carriers b<1>, b<2>, b<3>, b', b<5> rotated by a pulley e. The dies are supported in antifriction bearings and are adjusted eccentrically by trunnion screws g. The dies are tilted alternately, in opposite directions by nuts l, l<2> to assist the feed.
Patent GB-1154936-A (GB)
Title: Method for the Production of Polymerisation and Polycondensation Products
IPC: B29B7/74
Filed: 1966-06-28
Abstract: 1,154,936. Polymerisation apparatus. WERNER & PFLEIDERER. 28 June, 1966 [7- July, 1965], No. 28894/66. Heading B1X [Also in Division C3] Apparatus for the production of polymerisation and polycondensation products comprises one or more reaction vessels connected in series in which the reactants are continually mixed and passed through the apparatus by the action of worms 12, 12' 13, in the vessel(s), so that the reaction mixture passes through successive charging reaction and collecting sections in the apparatus and is finally discharged from the collecting section, by means of worm 7, worms 12 being constructed to brush against the inner wall of housing 1 and to brush against each other in a selfcleaning action. There may be holding or compacting sections between the charging, reacting and collecting sections, and the sections may be provided with jackets for heat transfer media. There may be pressure regulated sluices between the sections. The worms may be provided with passages for heat transfer media, and may have reduced thread pitch or depth at border zones between sections. The sections of the apparatus may be in vertical sequence, the worms being mounted on a common spindle supported only at one end. The collecting section may be connected to the charging section by an external pipe, outside the reacting section, for recycling unreacted monomer. The apparatus of Fig. 4 (not shown) is for use in high pressure polymerisation.
Patent GB-871958-A (GB)
Title: Improvements in or relating to clamping devices for rods or tubes
IPC: F16B39/36
Filed: 1957-09-13
Abstract: 871,958. Clamp fastenings; locking bolt-like pins. MORROW, E. L. Sept. 13, 1957, No. 28898/57. Classes 44 and 89(1). [Also in Group XXVIII] A device for clamping a rod or tube 10 to e.g. plates 11, 12, comprises a rigid sleeve 15 with a tapered bore 19 and a collar 20 of two or more sections of a material harder than the rod 10 each extending circularly more than 75 degrees about the rod and having a grooved inner surface of a radius less than that of the rod and outer tapered surface engaging the bore 19, the grooves having knife-edged lands with sharp points at their ends which tend to bite into the rod on relative movement of collar and sleeve. The grooves may have a lead to form an interrupted screwthread so that axial movement produced by rotation will mill a corresponding screw-thread on the rod. To prevent rotation a lip 24 on the collar cuts into the sleeve or a locking key and keyway is provided in collar and sleeve, Fig. 9 (not shown). The collar sections may be retained by inwardly turning a rim 18 on the sleeve or by use of a circlip, Fig. 7 (not shown). In a modification, Fig. 12 (not shown), the sections of the collar may be hinged together by a metal web.
Patent GB-974973-A (GB)
Title: Improvements in or relating to ignition and flame supervision devices
IPC: F23Q5/00
Filed: 1961-08-13
Abstract: 974,973. Burners. M. CLAUSEN, [trading as DANFOSS VED ING. M. CLAUSEN]. Aug. 10, 1961 [Aug. 17, 1960], No. 28961/61. Heading F4T. A combined ignition and flame supervision apparatus comprises a transformer connected to a pair of electrodes 12, 13 of unequal area disposed in the flame of a burner, a D.C. relay 8 for fuel control connected into the primary or secondary circuit of the transformer and a capacitor 9 connected across the relay. In the presence of a flame a D.C. current component is generated between the electrodes and in consequence the relay 8 is energized. The electrodes 12, 13 are also used initially to produce a spark for ignition of fuel in a burner. To provide an increased voltage for sparking a resistance 5 in the primary ,circuit is shortcircuited by a switch 6 or part of the primary winding of the transformer is short-circuited. A negative characteristic resistance 10 may be connected across the relay 8 and capacitor 9 to absorb excess voltage across the capacitor.
Patent GB-502655-A (GB)
Title: Improvements in or relating to electric heating plates
IPC: H05B3/68
Filed: 1938-10-06
Abstract: 502,655. Electric hot-plates. CHALLET, E. Oct. 6, 1938, No. 29017. Convention date, Nov. 4, 1937. Addition to 478,473. [Class 39 (iii)] The heating plate according to the parent Specification is modified by constructing the relatively movable parts 1, 2 thereof in the form of tori or solid rings. Each movable part may be composed of more than one torus and more than two movable parts may be used. Abutments 17 limit the depression of the part 2 under the weight of a receptacle and are lower than the base of the part 1. to accommodate a' deformed receptacle having a convex bottom. The cross-section of the tori may be circular and slightly flattened at top and bottom, or oval, or of an elongated bean-shape the concavity of which is turned downwards. When more than one torus comprises each part, the tori of each part occupy invariable positions relatively to each other and in the case of three, the central torus 14, 15, Fig. 6, of each part is higher than its adjacent tori. The group of tori may be formed by the convolutions of the same spiral.
Patent GB-937688-A (GB)
Title: Polyesters and their use in the production of cellular polyurethanes
Inventor: KAWAM ANTOINE
IPC: C08G63/685
Filed: 1961-08-11
Abstract: Polyesters having a hydroxyl number of 350-500 are made by reacting (1) a polycarboxylic acid, (2) a polyhydric alcohol of formula <FORM:0937688/IV(a)/1> wherein the alkylene radical has at least 2 carbon atoms, x, y and z are whole numbers whose sum is 3-10, at least two of the <FORM:0937688/IV(a)/2> groups contain primary hydroxyl groups, and R is an alkyl or alkenyl group containing 10-25 carbon atoms and (3) a polyhydric alcohol containing only carbon, hydrogen and oxygen in such an amount that 10 hydroxyl groups are supplied for every 0,1 to 15 hydroxy groups supplied by (2). Specified for (1) are adipic, sebacic, oxalic, succinic, maleic, citric, phthalic, isophthalic, terephthalic and dimer acids. Specified for (3) are ethylene-, propylene-, butylene-, diethylene-, polyethylene- and polypropyleneglycols; also trimethylol ethane, trimethylol propane, hexanetriol, pentaerythritol, sorbitol and mannitol. Cellular polyurethanes are made by reactin the polyesters with a polyisocyanate in the presence of water, an emulsifying agent and possibl a fluorinated hydrocarbon blowing agent (see Group V). Specifications 700,617 and 784,398 are referred to.ALSO:Dimensionally stable, rigid, non-brittle, cellular polyurethanes are made by reacting an organic polyisocyanate with a polyester of hydroxyl number 350-500 and obtained by reacting (1) a polycarboxylic acid (2) a polyhydric alcohol of formula <FORM:0937688/V/1> wherein the alkylene radical has at least 2 carbon atoms,x,y and z are whole numbers whose sum is 3-10, at least two of the -(-alkylene-O-)- <FORM:0937688/V/2> group contain primary hydroxyl groups, and R is an alkyl or alkenyl group containing 10-25 carbon atoms and (3) a polyhydric alcohol containing only carbon, hydrogen and oxygen in such an amount that 10 hydroxyl groups are supplied for every 0,1 to 15 hydroxyl groups supplied by (2).  Specified for (1) are adipic, sebacic, oxalic, succinic, maleic, citric, phthalic, isophthalic, p terephthalic and dimer acids.  Specified for (3) are ethylene-, propylene-, butylene-, diethylene-, polyethylene- and polypropylene-glycolic, also trimethylol ethane, trimethylol propane, hexanetriol, pentaerythritol, sorbitol and mannitol. Reaction between the polyisocyanate and the polyester may be affected in the presence of water or a fluorinated hydrocarbon blowing agent (e.g. difluorodichloromethane) and together with an emulsifir (e.g. a polyethylene glycol ricinoleate, a silicone oil, asorbitan ester of a fatty acid or a quarternarz ammonium salt). Specifications 700,617 and 784,398 are referred to.
Patent GB-1172018-A (GB)
Title: Valve Actuators
IPC: F16K31/163
Filed: 1967-06-23
Abstract: 1,172,018. Valves. HILLS-McCANNA CO. 23 June, 1967 [24 June, 1966], No. 29199/67. Heading F2V. Rotation of a shaft 34, which is operatively connected to a ball valve member (24, Fig. 1, not shown), is effected by means of a fluid pressure power cylinder 40, the cylinder comprising a first fluid supply passage 164 which opens into the cylinder through ports 166, 168, a second fluid passage which opens into a centrally disposed manifold ring 158, two pistons 48 and 50 which are slidable in the cylinder chamber 120 and of which each carries a U- shaped prong 77 and 89 respectively, a roller assembly 84 and 96 being mounted between the arms of the respective prongs, an actuator 56 which is connected to the valve shaft 34 and has formed therein slots 94 and 98 for receiving the roller assemblies, and two guides (128, 130, Fig. 3, not shown), which extend about the shaft, are disposed on either side of the actuator and engage the prong arms to support these against inwardly radial movement. In operation, application of pressure to ring 158 causes the pistons to move outwardly and, by engagement of the corresponding roller assemblies and slots, to rotate the actuator and hence also the shaft. Reverse movement of the shaft is obtained by applying fluid pressure to passage 164. The reversal and control of fluid pressure supply to the power cylinder is achieved by means of a solenoid operated fourway valve (140, Fig, 5, not shown).
Patent GB-996714-A (GB)
Title: Sheet registering devices
IPC: B65H9/04
Filed: 1963-07-24
Abstract: 996,714. Feeding sheets. RENA BUROMASCHINENFABRIK G.m.b.H. & CO. July 24, 1963 [Aug. 3, 1962], No. 29238/63. Heading B6B. Sheets or envelopes 3, Fig. 1, fed into an addressing machine are registered in selected positions by a sheet registering bar 2 made from flexible magnetic material adapted to be adjustably attachable to a ferromagnetic surface 1. In one embodiment the bar 2 is provided with a U-shaped metal channel attached adhesively to a foam rubber strip 9, Fig. 4, which itself is adhered adhesively to the top surface of the bar the upper portion 8 of the channel acting as a stiffener and the side portions 6, 6a providing gliding surfaces for the sheets or envelopes. In a further embodiment (Fig. 2, not shown), the foam rubber strip 9 is dispensed with. In a final embodiment (Fig. 3, not shown), a stiffener strip 10 is sandwiched adhesively between the top surface of the bar and lower surface of the rubber strip 9, the metal side portion 6 being glued on to the side of the bar and the juxtaposed side of the foam rubber strip 9.
Patent GB-323065-A (GB)
Title: Improvements in or relating to vehicle bodies
IPC: B60J7/06
Filed: 1928-10-11
Abstract: 323,065. Harmer, F. E. Oct. 11, 1928. Hoods. - In hoods of the kind in which a flexible cover is adapted to be drawn over the roof means are provided for locking one or more of the hoop sticks in any desired position such means comprising slidable members mounted in the hoop sticks or ribs and operable by a cam or cams to engage the rib guides. The hood comprises two spring rollers 2, 4 on which are wound a cover 3 and a lining 5 secured to a front rib 7 one or more intermediate ribs being provided, the last ribs being adapted to slide on guides 10 arranged longitudinally or transversely. The front rib 7 is hollow and contains slidable members 24 acting through rubber &c. buffers 26 on blocks 27 adapted to engage the slides 10 to lock the cover. The members 24 are operated by a cam or cams 22 mounted on a hand operated spindle 20. The. cam 22 carries also a hook 30 adapted to engage a pin 31 on the front fixed member 8, Fig. 4, to draw the rib 7 forwards and lock it. In a modification the hook 30 is mounted on a plate 60 acting on the cam 22 by means of notches 61, 62, and a pin 63. The ribs 6, 7 are interconnected by flexible means acted on by elastic means in order to close the ribs together when-the hood is opened. In a modification each alternate rib 43, Figs. 7 and 10 is channel-shaped in which is mounted a spring-biased spindle, 45 having pulleys 53, 54. Flexible bands 13 are connected to these pulleys and to the ribs 6, 7 and fixed rib 9, the spindle 45 and pulleys winding up the bands 13 as the hood is opened and assisting it. The ends of the ribs 43 are provided with jaws 37, Fig. 10, which embrace guides 36 of the shape shown. The spring rollers 2, 4 may be geared together and one of them provided with a sprocket 70, Fig. 15, over which a chain 71 passes, one end of the chain being connected to the front rib 7 and the other end to a cable &c. 73 which passes over a pulley 74 and is secured to the front rib. Motion is imparted to the chain and cable by hand or by power. Specifications 323,063 and 323,064 are referred to.
Patent GB-207529-A (GB)
Title: Improvements in rotating mud guards
IPC: B60B7/00
Filed: 1923-11-21
Abstract: 207,529. Menu, J. Nov. 22, 1922, [Convention date]. Mud-guards rotating with wheels.-Mud-guards 5 are clamped between the side of the wheel 1 and a hooked annular member 7 which is secured to the rim by clamps 10, Fig. 7, when applied to a spoked wheel and is secured by brackets 17, Fig. 3, secured to the wheel body 19 when applied to a disc wheel. The guard is made of rubber and fabric preferably concavo-convex in section with the concave side towards the wheel, and is provided at its inner edge with a thickened clamping part having a bead 6<1> and curved seating 4' for engaging respectively the hook 6 of the member 7 and the side of the rim flange.
Patent GB-500864-A (GB)
Title: Improved means for attaching wristlet bands and the like to watch cases
IPC: G04B37/14
Filed: 1938-10-12
Abstract: 500,864. Watches. EUSTANCE, E. B. Oct. 12, 1938, No. 29525. [Class 139] [Also in Group VII] A watch case 2 is provided with, tubes 1 soldered or otherwise attached inside the case to receive rods 4 carrying links 5 connected by bridging rods 6 to which a strap is attached. The case may be recessed at the sides to take the links 5.
Patent GB-988411-A (GB)
Title: Improvements in or relating to a projector for an elongated light source providing asubstantially uniform lighting on a rectangular surface
IPC: G03B15/03
Filed: 1961-08-16
Abstract: 988,411. Reflectors. INFRANOR S.A. Aug. 16, 1961 [Aug. 20, 1960], No. 29532/61. Heading F4R. Means for producing a substantially uniform lighting on a rectangular surface comprises an elongated cylindrical light source, e.g. a discharge tube or an incandescent lamp with a rectilinear filament, arranged at right angles to the optical axis of a reflector system consisting of a cylindrical reflecting cavity, 1, Fig. 2, behind the source 2, the generatrices of which are parallel to the axis of the source, two further cylindrical reflectors 4, 5 on opposite sides of the optical axis, their generatrices also being parallel to the axis of the source and two lateral reflectors 6, 7 disposed near the ends of the source and connected to the lateral edges of the reflectors 4, 5, the cross-sectional form of the reflectors 4, 5 being determined by the formula where α is the angle between any given ray leaving the reflector and the optical axes, J o  is the luminous intensity for α=0, αM is half the angle of opening of the beam of the reflector system and # is the angle between the optical axis and a ray falling on the reflector which leaves the reflector at an angle α to the optical axis. For small values of αM the formula reduces approximately to for a reflector and to for the cavity. For providing beams of small divergence, a modified system may be used in which the aperture ab, Fig. 4, of the cavity is greater than the distance cd between the near edges of the reflectors 4, 5, the edges ac and bd being connected by cylindrical non-reflecting elements 8, 9. In addition, the free edges of the reflectors 4, 5 may carry screening extensions 10, 11 to reduce the aperture. In a further modification, secondary reflectors are arranged within the main reflector system to redirect the rays emitted by the source between the rays which impinge on the extreme edge of the reflectors and the direct beam.