baber/WOPTO huggingface dataset:
Patent GB-1019342-A (GB)
Title: Fertilizer
Inventor: ARTHUR JOHN REX
IPC: C05B1/04
Filed: 1962-08-14
Abstract: A granular fertilizer comprises a nitrate, sulphate, and water-soluble P2O5.  At least 60% of the P2O5 is in the form of triple superphosphate and up to 40% is in the form of one or more of single superphosphate, monoammonium phosphate and diammonium phosphate. The mol. ratio of sulphate to monocalcium phosphate (as triple superphosphate and, if present, mono superphosphate) is 1-3. The nitrate is ammonium, sodium, potassium or magnesium nitrate.  The sulphate is ammonium, sodium, potassium or magnesium sulphate or ammonium sulphate nitrate.  The composition may also contain potassium chloride and urea. The proportion of nitrogen in the composition is 2-25%.  The proportion of P2O5 in the composition is 7-30%.  The mol. ratio of potassium chloride to ammonium nitrate is preferably at least 1.  Granulating is effected in a rotating drum in the presence of 1-5% of water, followed by drying in hot air or burnt gas and screening.  90% ammonium nitrate solution at 90 DEG  C. may be added to the other ingredients and recycled fines in the granulator.
Patent GB-509669-A (GB)
Title: A process for removing weakly acid-reacting substances from hydrocarbons or derivatives thereof
IPC: C10G19/04
Filed: 1938-10-27
Abstract: 509,669. Purifying hydrocarbons or derivatives thereof. NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ. Oct. 27, 1938, No. 31130. Convention date, Dec. 22, 1937. [Class 91] [Also in Group IV] Hydrocarbons or derivatives thereof are freed from weakly acid-reacting organic compounds by extraction with aqueous alkali solution containing the sodium salt of a fatty acid containing two carbon atoms, or the potassium salt of a fatty acid containing one, two or six carbon atoms. Alkali metal, alkaline earth, or ammonium hydroxides, bicarbonates or carbonates or quaternary ammonium compounds may be used in conjunction with sodium acetate or potassium formate or acetate. Liquids treated are gasoline, kerosene, gas oil, benzene, toluene, xylene ; chlorethane, ethylene dichloride, trichlorethylene, carbon tetrachloride, chlorpropane, chlorbutylene, chlorbenzene, brombenzene ; nitroethane, nitrobenzene ; amylamine, aniline, pyridine and petroleum bases, from which small amounts of acidic substances such as mercaptans, phenols and thiophenols are removed by the process. Extraction is preferably effected at normal temperatures. The used solution may be regenerated by flowing in counter-current to steam, with or without prior oxidation treatment to remove sulphur compounds. The hydrocarbons may be pre-extracted with water, caustic alkali, or tri-potassium phosphate. Specification 503,644, and French Specification 827,345 are referred to.
Patent GB-459609-A (GB)
Title: Improvements in electric plug couplings
IPC: H01R27/00
Filed: 1935-11-11
Abstract: 459,609. Plug couplings. DABSCHECK, W., Lanark, Alexandra Avenue, South Yarra, Victoria, Australia. Nov. 11, 1935, No. 31191. [Class 38 (i)] In a coupling plug] composed of a body, 2 carrying the pins and screw-threaded to receive a cap 13 adapted when applied to grip the leads between itself and a block 9 and to force the bared ends of the leads emerging from tubes 7 into sockets 6, the pins are mutually adjustable without affecting the inter-socket distance. The sockets are each integral with a plate 14 carrying a screwed stem 17 projecting through a slot in the base of the body and adapted to receive a pin 3. The slots are shaped so that by loosening the pins they and the sockets can be shifted to vary the distance between the pins without altering that between the sockets 6. To increase the hold on the cable leads these may be passed round the block 9 or through side passages as in Fig. 4 before entering the tubes 7,
Patent GB-1030649-A (GB)
Title: Vacuum furnace
IPC: F27B5/04
Filed: 1964-08-04
Abstract: 1,030,649. Radiation shields. PACIFIC SCIENTIFIC CO. Aug. 4, 1964 [Aug. 15, 1963], No. 31266/64. Heading F4B. A vacuum furnace comprises a cylindrical liquid-cooled casing 1, 1<SP>1</SP> having within it a plurality of coaxial, mutually spaced cylindrical radiation heat shields 10, each with projecting ribs 11 engaging an adjacent shield, thereby stiffening and spacing the shields which surround a hearth 5 and heating elements 8. The shields may be formed from sections having vertical folded joints therebetween, Fig. 3 (not shown), and may also be formed from vertically disposed overlapping sections, Fig. 4 (not shown). Pins 23 project from the casing and pass through holes in the shields to provide support. The casing 1, 1<SP>1</SP> has flanges abutting on to similar flanges of dome-shaped top and bottom casing sections, the bottom section being adapted to be lowered from the casing 1, 1<SP>1</SP>.
Patent GB-862239-A (GB)
Title: Compositions containing polymers or copolymers of vinyl pyrrolidone or derivatives thereof
IPC: C09J139/04
Filed: 1957-10-07
Abstract: A composition of 1 to 3 parts by weight of a water-soluble polymer of vinyl pyrrolidone or vinyl-alkyl-pyrrolidone or of a co-polymer of a mixture of monomers containing at least 20% by weight of said vinyl pyrrolidones contains 1 part by weight of <FORM:0862239/IV (a)/1> wherein R1, R2, R3 and R4 are each hydrogen or an alkyl radical of 1-9 carbon atoms, the carbon atoms in all the alkyl radicals totalling 4 to 18.  Substituted N - vinyl - 2 - pyrrolidones mentioned are 3-methyl-, 4-methyl, 3,3-dimethyl, 4-ethyl, 5-methyl, 5-ethyl.  Monomers suitable for making copolymers are allyl alcohol, diallyl phthalate, isobutyl vinyl ether, maleic anhydride, vinyl acetate, vinyl chloride, acrylic acid, vinyl laurate, vinyl stearate. A number of specific monomer combinations are listed.  Many suitable phenols are mentioned.  The mixtures of polymer and phenol are sometimes soluble in solvents which do not dissolve the polymer alone, e.g. hydrocarbons, ketones, halogenated hydrocarbons or dioxane.  In examples: (1) a film with adhesive properties when wet is formed from an alcohol solution of polyvinyl-pyrrolidone and nonyl phenol; (2) to (6) are similar, employing dinonyl phenol; (7) employs nonyl phenol to make a film of laminating adhesive; (8), (9) and (10) use dioctyl phenol; and (11) diisobutyl phenol; (12) uses mixed polyvinylpyrrolidone of different mol. weights; (13) is similar to (7) but uses (a) dinonyl phenol, (b) dioctyl phenol, (c) octyl phenol, (d) hexyl phenol, (e) diisobutyl phenol, and (f) p-isoamyl phenol; (14) and (15) are similar to (7) using a variety of phenols in coatings for metals or for polythene paper laminates; (16) describes an ink containing polyvinylpyrrolidone, nonyl phenol, xylene, Rhodamine or Rubine, and cobalt naphthenate.  A number of other examples are given in which solutions of polymers or copolymers of vinyl pyrrolidone or its deviations are incorporated with waxes, e.g. carnauba, candellilla or beeswax, siloxanes, or plasticizers, e.g. dioctyl phthalate, butanediol, or glycol.  The compositions may also be mixed with other resins, e.g. polythene, epoxy resins, polyvinyl acetate, polyvinyl methyl ether.  Fillers, e.g. carbon or silica may also be incorporated.  Thus in Example (24) a pigmented sheet is produced from polyvinylpyrrolidone, dinonyl phenol, carbon black and polyethylene.  In Example (27), resistors for printed circuits are produced from a composition containing epoxy resin, polyvinylpyrrolidone, dinonyl phenol, carbon black and diethylenetriamine.  The compositions are used for coatings on metal, glass, wood, paper, polyethylene, &c., as inks, as adhesives, e.g. for laminating, as plasticizers, e.g. for polyethylene, or for sizing siliceous materials, e.g. glass fibres.
Patent GB-684846-A (GB)
Title: Improvements relating to nut and screw assemblies
Inventor: MERTON THOMAS RALPH
IPC: B23Q23/00
Filed: 1949-12-06
Abstract: 684,846. Screw and nut gearing. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Nov. 28, 1950 [Dec. 6, 1949], No. 31335/49. Class 80 (iii). A nut member is formed in two spring-pressed parts 2, 3 having pads 2a, 3a of a resilient, readily deformable material such as cork, rubber, fibre, leather or balsa wood, which engage under the pressure of a spring 6 with the thread x of a screw member 5. The threads on the pads 2a, 3a may be cut or preformed or they may be produced merely by the resilient contact with the screw thread x. The device is particularly applicable to mechanism for the cutting or ruling of screws, helices, scales or diffraction gratings such as y on a mandrel 5 which also carries the screw thread x, a reproduction of the thread being obtained by a cutting or marking point 21 on a guided carriage 11, 12, 16 carrying the nut 2, 3, corrected however for local inaccuracies of the thread by reason of the resilient thread of the nut.
Patent GB-1432050-A (GB)
Title: Apparatus for removing liquid from liquid/gas separator cart ridges
IPC: F04B39/16
Filed: 1973-07-02
Abstract: 1432050 Separating liquid from gas H BAUER 2 July 1973 [14 July 1972] 31435/73 Heading B1T [Also in Division F1] An apparatus for separating liquid (e.g. oil) from a gas (e.g. air) flow delivered by a compressor which liquid is to be reused in the compressor, comprises a filter cartridge unit removably inserted in a housing, the unit comprising a filter element and a drain for receiving liquid coalesced in the filter element and means for passing the liquid from the drain to a chamber inside the housing but outside the cartridge unit, the said means being operated by the gas flow through the apparatus. In Fig. 1 the air/oil mixture introduced through inlet 3, passes into chamber 8 where large oil drops settle out and then through filter element 2 to outlet 4. Coalesced oil is collected in drain 12 and withdrawn therefrom by the gas flowing past the outlet end of pipe 13. The separated oil is discharged from chamber 8 through outlet 5. The outlet end of pipe 13 may be provided with a one way valve (e.g. resilient sleeve or ball valve). In other embodiments the oil may be withdrawn from drain 12 by a pump driven by a turbine positioned in inlet 3 and operated by gas to be cleaned or adjacent outlet 4 and operated by purified gas. In Figs. 9 and 10 (not shown) the cartridge unit contains three parallel horizontally spaced flat filter elements connected in series, each filter element having a drain well. The wells are connected in parallel to a pump which is driven by incoming or outgoing air. In Fig. 12 the air/oil mixture from inlet 58a is passed successively through chambers 61a and 67 in each of which oil separates out, to filter element 54a. The oil collecting in the drain is discharged to chamber 61a (as shown) or to chamber 67 by a pump driven by purified air. Oil in chamber 67 is withdrawn through tube 68 by incoming air passing the outlet nozzle 68a of tube 68.
Patent GB-1341571-A (GB)
IPC: B29C48/11
Filed: 1971-07-05
Abstract: 1341571 Reservoir pens GILLETTE CO 5 July 1971 [9 July 1970] 31498/71 Heading B6P [Also in Division B5] A writing tip 10 for a pen having an ink reservoir filler of porous absorbent material is composed of a homogeneous mass of thermoplastics material, e.g. polyacrylonitrile, polymethylmethacrylate, polyoxymethylene, nylon, polyethyleneterephthalate, polypropylene and copolymers thereof, the writing tip having an axial, open-ended ink-conveying channel 14 and a plurality of longitudinally extending parallel multi-lobed ink-conveying channels 15, 16 circumaxially spaced in circular array around the axial channel. The tip is manufactured by melting and extruding the polymer through a die having a discharge orifice whose maximum diameter is 7 to 15 times the diameter of the writing tip and which includes a plurality of mandrels in circumaxial spaced relation to an axially positioned mandrel, gently drawing the extrusion while cooling to a plastic stage in a quenching bath to reduce the diameter of the extrusion to between 25 and 50% of the extrusion orifice size, cooling the drawn extrusion to below the plastic temperature stage in a quenching bath and subjecting the extrusion to further drawing under tension at a temperature below the melting point of the polymer to further reduce the transverse dimension of the extrusion to that desired in the final writing element.
Patent GB-533861-A (GB)
Title: Overload time limit relay
IPC: H01H71/44
Filed: 1939-12-05
Abstract: 533,861. Electrically - tripped switches. MASCHINENFABRIK OERLIKON. Dec. 5, 1939, No. 31541. Convention date, Dec. 13, 1938. [Class 38 (v)] A time-limit overload relay comprises a trip lever 7 and armature 6 both pivoted at 8 and joint 16 of which is held by a lever 17 until the lag expires. The toggle is pivoted to an extension 12 of lever 7 and to a fork 15 which is pivoted at 18, and restrained by an adjustable spring 20. The initial movement of 6, 7, on overload, causes 12 to move clear of a pin 34 and release an induction-motor rotor 3 driving a worm 19, and also causes fork 18 to rotate against a stop 21 and move a disc 24 and worm wheel 11 axially on a spindle 25, whereby the worm 19 meshes with the wheel 11. At the end of the time-delay, a pin 26 on the wheels. 11 deflects the latch 17, the toggle breaks upwards, and the armature 6 and lever 7 are released, a spring 27 and the weight of the armature subsequently restoring the parts to their original positions. The member 17 can be engaged for instantaneous tripping by an armature 31 subject to the stray field, the adjusting pin 5 being movable into the hook 32 to lock this armature, which can also be manually displaced. The time-lag is adjustable by a sector 28, which engages the worm wheel 11 and is movable by a pin 37 on a lever 38. The pin 34 is connected to the motor 3 by a spiral spring, and the rotor-spindle 36 carries a pointer. which indicates the releasecurrent value on a scale, Fig. 3 (not shown). On heavy overloads, armature 6 is at once fully attracted and tensions a spring 40 which subsequently actuates the trip lever 7, the spring being normally unstressed and connected to a lever 42 which is pivoted at 43 to lever 7 and is slotted to engage a pin 41 on the armatures.
Patent GB-1235496-A (GB)
Title: Improvements in or relating to circuit arrangements for starting and operating electric discharge lamps from alternating current supplies
Inventor: CATES JULIUS
IPC: H05B41/232
Filed: 1968-07-02
Abstract: 1,235,496. Inductors. GENERAL ELECTRIC CO. Ltd. 24 Sept., 1969 [2 July, 1968], No. 31565/68. Heading H1T. [Also in Division H2] An inductor for use as a ballast unit in an electric gas discharge lamp system comprises at least two windings which are serially connected in opposition, the inductor being arranged to have large magnetic leakage. In one embodiment an inductor 11 is provided with three windings W1, W2, S, the windings W1, W2 being wound on a single former. The magnetic core 14 comprises two sections 12, 13 arranged to have air gaps between the sections with the windings W, S associated with a leg of each section. In a second embodiment the core sections 12, 13 are placed between the end portions of a rectangular type core. In other embodiments two windings only are used, magnetic shunts being provided between the two windings. The inductor may be potted in a mixture of polyester and powdered silica and housed in a box-like container associated with the discharge lamp.
Patent GB-179209-A (GB)
Title: Improvements relating to separators employed for the separation of liquids of different density
IPC: B01D17/02
Filed: 1920-11-08
Abstract: 179,209. Bateman, W. H. Nov. 8, 1920. Separating by gravity.-A tank b for separating liquids of different density, for example oil and water, is provided externally with a regulator controlling the discharge of both the heavier and the lighter liquid and the relative volumes of the liquids retained in the tank. The heavier liquid is led through a pipe c and branch c' to a compartment 1 from which it overflows through a pipe d, the upper portion d<1> of which is vertically adjustable. The lighter liquid passes through a connection f to a compartment 2 from which it flows away over a weir h. A compartment 3 is in connection at the bottom with the heavier liquid in the compartment 1 and through an aperture k with the lighter liquid in the compartment 2. The surface of separation of the liquids in the compartment 3 is thus that of the liquids in the tank b, and can be observed through a glass plate j which forms one wall of the compartment. The connection f is so placed relatively to the liquid level in the compartment 2 that no vapour or gas can pass through it from the tank b.
Patent GB-319532-A (GB)
Title: Improvements in or relating to axle boxes
IPC: B61F15/26
Filed: 1928-10-31
Abstract: 319,532. Wagon Repairs, Ltd., and Ferguson, G. R. Stewart-. Oct. 31, 1928. Oil-hole lids and covers.-The front of an axlebox is thickened or outwardly bulged at 5 and has a recess or groove 6 therein within which is housed a closure plate 7 for a lubricant duct 9, the plate 7 and its co-operating parts being wholly located within the recess when the plate 7 is in the closed position. As shown the plate is hinged to a projection 5a in the recess 6 and may be held in either open or closed position by a spring 10. The bulged portion of the axle box has horizontal grooves 5<b> to enable the hinge pin 8 to be assembled. A channel 6a formed on the face of the recess 6 around the outer end of the oil duct 9 drains off water that may enter the recess.
Patent GB-818303-A (GB)
Title: Improvements in or relating to cutting devices for trimming hedges, shrubs or the like
IPC: A01D34/73
Filed: 1955-11-07
Abstract: 818,303. Hedge cutters ; mowing machines. SUHNER, W. Nov. 7, 1955 [Nov. 8, 1954], No. 31726/55. Classes 6(2) and 6(3). A device for trimming hedges, shrubs and the like, comprises a rotary cutting member 5 having curved cutting edges 9, together with a guard 2 having a plurality of teeth extending in a plane parallel to that of the cutting member, each tooth comprising a root portion 14 which is inclined rearwardly with respect to the direction of rotation of the cutting member, and an outer portion 13 which is inclined relative to the root portion. Really, the cutting edges 9 of the member 5 should be in the form of logarithmic spirals, but in practice they may be semi-circular, or have an elliptic configuration. In operation, the material 16 to be cut is entrained between the teeth of the guard and severed by the member 5. To increase the efficiency of the device, that side of the root portion 14 of each tooth which cooperates with the cutting member to effect a cut may be provided with small tooth-like protrusions, or in the case where grass is to be cut, the teeth may be formed to engage over the edge of the cutting member.
Patent GB-659989-A (GB)
Title: Improvements in and relating to glass fibre reinforced crepe paper and methods of manufacturing the same
IPC: D21H27/34
Filed: 1949-12-12
Abstract: 659,989. Reinforced paper. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 12, 1949, No. 31847. Convention date, Dec. 18, 1948. [Class 96] Longitudinally creped paper 1 is reinforced by glass filaments 6 from spools 7 adhered thereto as by spraying at 10 with adhesive and passing between one or two pairs of rollers 5. Alternatively, the adhesive may be applied to the crepe paper.
Patent GB-287231-A (GB)
Title: Improved means for turning motor road and like vehicles in confined spaces
IPC: B60S9/14
Filed: 1926-12-16
Abstract: 287,231. Clifford, V. J. Dec. 16, 1926. Stands or supports for vehicles adapted to facilitate turning in confined spaces comprise a wheel or wheels a mounted on a vertical member d which is reciprocable by hydraulic or air pressure and may also be turned on its axis. Preferably the member d is hollow and slides in a cylinder g, which may be rotated by worm gear i, j connected to the steering column or other control. A plate d<11> closes the upper end of the member d, which is reciprocated by the pressure of fluid admitted to one side or the other of a fixed piston r by pipes t, u. The device is secured to the front axle c of the vehicle. Apparatus for use on the back axle in conjunction with the above is shown in Fig. 5. A hydraulicallyoperated rack 13 gears with a wheel 14 connected with a pivoted arm y by a chain 11. The arm carries a wheel which thus takes the weight when the arm is pulled into the vertical.
Patent GB-479385-A (GB)
Title: Improvements in couplings
IPC: F16D3/00
Filed: 1936-11-21
Abstract: 479,385. Slipping- clutches. BEUCRE, W. Nov. 21, 1936, No. 31949. [Class 80 (ii)] The driving member 2 is provided with a member 3, which can be shifted to an eccentric position, and the driven member 28 is provided with spring pegs 19, which are compressed in turn as the driving member rotates, until the driven member ultimately reaches the speed of the driving member. The ring 29 that touches the pegs is supported by an anti-friction bearing 30 on the eccentric 3. The eccentric is carried by a key 7 slidable in slots in the driving member 2 and also in a carrier 8, which is formed with an inclined slot (not shown) to engage a pin 9 secured to the key 7. When the. carrier 8 is moved axially, the eccentricity of the member 3 is varied, and when it is in the concentric position shown, no drive is transmitted. In a modified form, the ring 29 is connected to the driven member 28 by a series of bowsprings.
Patent GB-326132-A (GB)
Title: Improvements in a method of laying long culverts or continuous concrete tubes
IPC: B28B7/32
Filed: 1928-11-02
Abstract: 326,132. Nose, T. Nov. 2, 1928. Moulding concrete conduits in situ.- The conduits are cast in sections between shutters 5 on a concrese base-plate 1 using a resilient core, and this core is then removed. Bag-shaped cores 5 connected by a rope or chain are then positioned beneath the gaps and inflated through tubes 10, and the spaces are them filled. The tubes 10 are drawn out so that the cores deflate and are then removed, the spaces for the passage of the tubes 10 being subsequently filled. When conduits are cast in tiers, the inflating tubes 10 cannot be used; in this case the bag-shaped cores 5 are connected together by a chain or rope and a tube so that, when positioned, they may be inflated and the hollow spaces filled. The core may be formed in three layers, the outer and inner being of flexible material such as rubber and the intermediate layer of canvas or reinforced fabric. Specification 250,727 is referred to.