baber/WOPTO huggingface dataset:
Patent GB-882282-A (GB)
Title: Improvements in or relating to shock absorbing devices
Inventor: WALLENS ANTHONY WALTER
IPC: H04L13/18
Filed: 1960-09-02
Abstract: 882,282. Hydraulic shock absorbers. CREED & CO. Ltd. Sept. 2, 1960, No. 30367/60. Class 108(3). A shock absorbing device 1 comprises a cylinder 2 containing hydraulic medium with its ends interconnected by a passage 3 in which is a non-return valve 5, a plunger 8 movable in one direction under the influence of a mass 22, a piston 20 coaxially surrounding the plunger and incorporating a number of paths for the passage of hydraulic medium, first spring means 21 between a flange 10 on the plunger and the end of the piston 20 and second spring means 16 for returning the plunger when the mass 22 is withdrawn. In the construction the paths through the piston are defined by a series of radial fins 19 the ends of which are covered by an enlarged portion 11 of the plunger which extends into a recess 12 in the casing of the device. In operation the plunger is pushed to the right by the mass 22 taking piston 20 with it until the hydraulic pressure on the right-hand end of the piston overcomes the pressure of spring 21 causing an annular gap 18 to appear between the piston and plunger through which the medium passes into the passages in the piston and thence into the left-hand end of the cylinder retarding the motion of the mass. On removal or withdrawal of the mass spring 16, which surrounds adjustable stop 15, pushes the plunger and piston to the left, hydraulic medium passing from the left-hand to righthand end of the cylinder through passage 3 and valve 5. Passage 4 is provided for maintaining the level of hydraulic medium in the system.
Patent GB-824349-A (GB)
Title: Improvements in liquid-delivery valves
IPC: F16K23/00
Filed: 1956-10-05
Abstract: 824,349. Valves. SANDER, J. S. Oct. 4, 1957 [Oct. 5, 1956], No. 30418/56. Class 135. A valve controlling the delivery of liquids comprises a valve body 10 formed with a chamber 11 closed at the top by a screwed cap 19 and housing a valve member 22 seatable on the bottom of the chamber to close an inlet passage 12 and a ring of small diameter outlet passages 15. On liquid from the apparatus being admitted to the supply pipe 14 the valve member is raised against its own weight to pass liquid to the outlets. The member 22 may have a conical lower face. The outlets may discharge into a common nozzle attached to the body. The space above the valve member is vented to atmosphere, as shown, by a passage 16. A screwdriver slot 23 allows the valve member to be ground on to the chamber bottom.
Patent GB-776518-A (GB)
Title: Improvements in the preparation of 2,2-methylene-bis-4,6-dialkylphenols
IPC: C08K5/13
Filed: 1955-10-25
Abstract: 2:21 - Methylene - bis - 4:6 - dialkyl phenols of formula: <FORM:0776518/IV(b)/1> wherein R1 is a straight-chain alkyl radical preferably of 1-3 carbon atoms and R2 is a tertiary alkyl radical preferably of 4-8 carbon atoms, are prepared by reacting the corresponding dialkyl phenol and formaldehyde in an aqueous medium in the presence of an acid catalyst and a dispersing agent, and with an inert organic solvent in the aqueous medium, preferably in an amount of 1 per cent to 3 per cent by weight of the reaction mixture. Specified solvents are heptane, tetrachloroethane, chlorobenzene and naphtha.  Specified acid catalysts are aryl sulphonic acids, hydrochloric acid and, preferably, sulphuric acid.  Specified dispersing agents are sodium decyl toluene sulphonate and sodium diamyl naphthalene sulphonate.  In examples: (1) 2-tertiary-butyl-4-methylphenol is reacted in aqueous medium with formaldehyde together with sulphuric acid, sodium decyltoluene sulphonate and heptane or tetrachloroethane or chlorobenzene or naphtha to give 2:21-methylene - bis - (4 - methyl - 6 - tert. - butyl - phenol); (2) as in (1) but using naphtha as the inert solvent and 2-tert.-butyl- or tert.-octyl-4-ethylphenol, 2:21 - methylene - bis - (4 - ethyl - 6 -tert.-butyl- or tert.-octyl-phenol) is obtained; (3) as a comparison, 2-tert.-butyl-4-methyl -phenol is reacted with formaldehyde in heptane with the addition of hydrochloric acid and sodium lauryl sulphate to give 2:21-methylene -bis-(4-methyl-6-tert.-butyl-phenol).
Patent GB-396964-A (GB)
Title: Manufacture of cement powders
IPC: C04B28/26
Filed: 1932-10-31
Abstract: A cement powder is manufactured by mixing solid converted hydrous readily soluble silicates defined in the parent Specification with substances capable of binding the silicic acid of the soluble silicate to produce insoluble silicates.  Examples of such substances are metallic oxides or metallic silicates such as barium silicate fused alumina cement, barium monoxide or calcium aluminium silicates but not aluminium oxide or hydroxide. Filling agents such as quartz, sand, chamatte, asbestos, barium sulphate, silicon carbide, &c. may be added.  The cements may be mixed with water or water-glass solution, and used to manufacture artificial stones, tubes, plates, vessels, &c.  The articles so made may subsequently be burnt.  In a typical specific example 300 parts of pulverized potassium silicate containing at least 20 per cent of water are mixed with 100 parts barium silicate and 600 parts of pulverized quartz and sand.  This mix is then made into a paste with water and is very stable to sulphuric acid.
Patent GB-993946-A (GB)
Title: Improvements in the production of aluminium fluoride
Inventor: GERNES DONALD CONSTANT
IPC: C01F7/50
Filed: 1962-08-09
Abstract: An aqueous supersaturated aluminium fluoride liquor containing readily separable silica is produced by adding finely-divided alumina hydrate to a reaction liquor containing excess fluosilicic acid having a silicon/fluorine ratio less than 6 : 1 at 60 DEG  to 70 DEG C., the concentration of fluorosilicic acid being such that supersaturated aluminium fluoride liquor is produced, allowing the resultant mixture to digest within the said temperature range for sufficient time to yield a readily filtrable silica precipitate. The silica is preferably removed by filtration; the silica free supersaturated liquor may then have seed crystals added thereto to crystallize the aluminium fluoride. The crystalline product may be calcined.  The preferred form of the invention is described with reference to four flow sheets (not shown) and includes recycle streams for the recovery of hydrofluoric acid and filtrate and wash liquor recycling to ensure economic operation.
Patent GB-1353068-A (GB)
Title: Harvesters
IPC: A01F12/28
Filed: 1971-06-30
Abstract: 1353068 Threshing machines SPERRY RAND CORP 30 June 1971 [30 June 1970] 30633/71 Heading A1F In an axial flow threshing machine, e.g. a combine harvester having two parallel threshing and separating rotors 41, 42 carrying rasp bars 47, 48 co-operating with concaves 48, 49 mounted to give decreasing clearance in the direction of rotation, the concaves are adjusted by rotation of cams 77, 78 which bear on brackets 81, 82 fixed on the outside of sidewalls 75, 76 of the machine and which support shafts 70, 71 extending through vertical slots 72', 73' in the sidewalls and through tubes 68, 69 on which the concaves are mounted. The tubes pivot about the shaft on bearings 72, 73. At the front and rear the concaves are pivoted on their inner edges to brackets 66, 67 fixed on tubes 68, 69 and on their outer edges to the mid-portions of levers 83, 84 via links 89, 90. Levers 83, 84 are each pivoted at one end 85, 86 to a side wall 75, 76 and at the other end carrying a U-shaped bearing engaging a tube 68, 69. Thus when shafts 70, 71 are lowered by rotation of cams 77, 78 the inner edges of the concaves move down by the same amount but the outer edges connected through levers 83, 84 move down less. The concaves may be mounted on their inner edges on common pivots.  The cams are rotated by moving an adjusting handle in the driver's cab to pull either of the Bowden cables 105, 106 (see Fig. 2) connected to a link 101 interconnecting plates 97, 98 which are pivotally supported at 99, 100 and connected via links 95, 96 to plates 93, 94 fixed to cams 77, 78 respectively. Bowden cable 105 may be connected to pivot plate 97 at the point of attachment of link 95. In an alternative embodiment, Fig. 7, the ends of two Bowden cables 137, 138 are connected to plate 131, 132 which are fixed to cams 77, 78 and interconnected by link 135. Links 102 and 135 are adjustable in length by turnbuckles.
Patent GB-1146654-A (GB)
Title: Improvements in or relating to spin detector for nuclear resonance spectroscopy
Inventor: FECHNER ERNST
IPC: G01R33/36
Filed: 1966-07-07
Abstract: 1,146,654. Nuclear magnetic resonance spectrometers. DEUTSCHE AKADEMIE DER WISSENSCHAFTEN ZU BERLIN. July 7, 1966, No. 30636/66. Heading G1N. A spin detector for nuclear resonance spectroscopy comprises a transistor or valve phase splitter feeding a bridge circuit having a resonant circuit L1, C3 including the sample and a comparison resonant circuit L2, C4. The winding L 1  is exchangeable in accordance with the sample being tested. In order to provide automatic phase balance one of the resonant circuits is shunted by a capacitance diode D, the capacitance of which is modulated by a low frequency oscillator. The bridge output is demodulated and fed to a phase sensitive rectifier to produce a D. C control signal for varying the capacitance of diode D.
Patent GB-283194-A (GB)
Title: Process for the production of mixed manures
IPC: C05B13/02
Filed: 1927-11-15
Abstract: 283,194. Rhenania-Kunheim Verein Chemischer Fabriken Akt.-Ges. Jan. 8, 1927, [Convention date]. Manures are made by mixing calcined phosphates, such as Thomas slag, Rhenania phosphate or Wolter phosphate, with ammonium salts and sufficient acid or acid salt to neutralize the alkalinity of the phosphate without causing its decomposition. Potash salts may be added. In one example, a mixture of Rhenania phosphate and tri-ammonium-mono-hydro-disulphate is used. In another, the phosphate is mixed with acid, ammonium nitrate and potassium chloride.
Patent GB-1386846-A (GB)
Title: Brominated quinophthalone dyes
IPC: C09B25/00
Filed: 1972-06-30
Abstract: 1386846 Quinophthalone dyes BADISCHE ANILIN- & SODA-FABRIK AG 30 June 1972 [1 July 1971 25 Jan 1972] 30670/72 Heading C4P Quinophthalone dyes of formula (in which R<SP>1</SP> is H, Cl, OH, methyl, methoxy, ethoxy, phenyl or phenoxy; R<SP>2</SP> is H, Cl or CH 3 ; or R<SP>1</SP> and R<SP>2</SP> together complete a fused carbocyclic ring; X<SP>1</SP> is H, F, Cl, OH, methoxy, ethoxy, phenoxy, 1-4C alkyl, phenyl, optionally substituted benzoyl or acylamino; X<SP>2</SP> is H, Cl or CH 3 ; n is greater than 1 and up to 4) are prepared by brominating a compound of formula (in which m is up to 2). A Lewis acid, e.g. H 2 SO 4 , H 3 PO 4 , FeCl 3 , BF 3  hydrate or ethanolate, I 2 , S 2 Cl 2 , TiCl 4 , AlCl 3  (with urea or NaCl+KCl) and/or phthalic anhydride, may be used as catalyst. The dyes are used to colour textile materials, plastics and synthetic fibres.
Patent GB-865517-A (GB)
Title: Articulated manipulator
IPC: B25J5/00
Filed: 1959-09-08
Abstract: 865,517. Handling radio-active materials. GENERAL MILLS Inc. Sept. 8, 1959 [Sept. 19, 1958], No. 30683/59. Class 39(4). A manipulator intended for removing a nuclear engine from an aircraft (Fig. 1, not shown) after previously placing a television camera within the aircraft engine compartment and permitting dismantling of the engine after its removal comprises a vehicle 16 having endless tracks 18 and supporting a shielded cab 20 by a rotatable and telescopic post 24. A boom support 54 rotatable on the cab roof through gears 36, 38 slidably carries a boom 56 which may be used in the support 54 by a rack gear (Fig. 7, not shown). A shoulder suport 66 carried by a bearing on the end of the boom 56 is rotatable about the boom axis through a gear 70, the support 66 being pivotally connected by a shaft 78 to the first section 80 of an upper arm 76. A second section 82 of the arm 76 is movable relatively to the section 80 both rotatably and slidably through respective gear arrangements (Fig. 8, not shown) and pivoted to the section 82 by a shaft 112 is a forearm 110. The upper arm 76 is driven about the axis of shaft 78 through gearing (Fig. 5, not shown) whilst forearm 110 is driven about the axis of shaft 112 by gearing (Fig. 6, not shown). A wrist member 120 is pivotally connected by a shaft 122 to the forearm 110 and driven about the shaft axis by gearing (Fig. 6, not shown), a cylindrical member 138 rotatable by gearing (Fig. 9, not shown) about its axis within the member 120 carrying a hand mechanism 130. The mechanism 130 comprises a pair of jaws operable by gearing within the member 138 and is shown in Fig. 2 supporting an engine component 182 in front of the cab window 22. Each set of gears for performing the various motions is driven by a separate electric motor situated adjacent each respective gear set, the motors being controlled by a switch panel 28.
Patent GB-1195539-A (GB)
Title: Improvements in or relating to Information Transmission Systems
IPC: H04B3/44
Filed: 1967-07-04
Abstract: 1,195,539. Cable transmission system. SIEMENS A.G. 4 July, 1967 [5 July, 1966; 5 June, 1967], No. 30701/67. Heading H4R. To suppress induced low-frequency currents in a coaxial system, an inductor Dr is connected between the cable K and the input (or output) of a repeater amplifier V and is bridged by a capacitor C1 for speech signals. Filter coils F decouple the earth capacitance of the choke winding. A voltage overload protector U, is provided.
Patent GB-174217-A (GB)
Title: Improvements in or relating to coal cutting implements
IPC: B25D7/00
Filed: 1920-10-30
Abstract: 174,217. Fachinger, W. Oct. 30, 1920. Percussive hand tools. - A coal-cutting chisel driven by compressed air is mounted on a handle at right-angles to the tool, to be used as a lever for removing the lump of coal. In the form shown in Fig. 3, a hammer piston 17 transmits blows to a chisel 4 through intermediate members 21, 23, which may be replaced by a curved member suitably guided. Alternatively, the piston 17 may reciprocate in line with the chisel, a cushioning space 13 being provided and supplied with compressed air by a passage 11. A relief port 20 is provided to accommodate an idle blow. Fig. 6 shows another form of the tool.
Patent GB-1098749-A (GB)
Title: Improvements in or relating to apparatus for operating on disc-like workpieces
Inventor: FELLOWS JAMES JOFFRE
IPC: B21D43/16
Filed: 1965-07-21
Abstract: 1,098,749. Making washers; transferring blanks. G. & S. LEES Ltd., and HAMPTON & BEEBEE Ltd. Oct. 21, 1966 [July 21, 1965], No. 30928/65. Headings B3A and B3W. [Also in Division B8] An apparatus for carrying out a two-stage operation on generally flat disc-like workpieces comprising first and second machines which each perform one operation and a tubular conduit, connected between the machines, which receives the workpieces from the first machine and delivers them to the second machine upside down relative to their positions on entering the conduit. A punch 15 cuts circular blanks from a sheet 10 and pushes them through the die opening 14 into a rubber tube 18 attached to the underside of the die and which is full of blanks, so that each new blank entering the tube causes a blank to leave the far end of the tube. The blanks slide down a shoot 23 between guides into a chimney 24 in which they form a short stack. A reciprocating slide (22), Fig. 1 (not shown), operated by a cam and lever moves the blanks singly from the chimney to a work station where they are perforated by a punch to form a washer. Performing the two operations from opposite sides of the blank is stated to produce a substantially flat washer.
Patent GB-534912-A (GB)
Title: Improvements relating to gas producers
IPC: C10J3/64
Filed: 1939-11-28
Abstract: 534,912. Gas producers. TROUP, J. D. Nov. 28, 1939, No. 30978. [Class 55 (i)] Tarry vapours frorr the upper part of the fuel bed are cracked by passage through a refractory chamber a extending across the fuel bed at the upper portion of the incandescent zone These vapours enter through openings in the lower part of the chamber, and pass through the chamber to the outlet c. The chamber is re-inforced by a girder d.
Patent GB-1154842-A (GB)
Title: Raised Tufted, Bonded Fibrous Structures
Inventor: SANDERS ARTHUR JOSEPH
IPC: D04H1/48
Filed: 1965-07-21
Abstract: 1,154,842. Fibrous laminates. IMPERIAL CHEMICAL INDUSTRIES Ltd. 13 July, 1966 [12 July, 1965], No. 30986/65. Heading B5N. [Also in Division D1] A non-woven material comprises a fibrous structure in which a portion of the fibres are passed through the thickness of the structure, e.g. by needling, and extend beyond a surface as tufts which are napped. The fibres are adhesively bonded in the structure. The structure can comprise two layers, the fibres from the second layer being passed through the foundation layer. The fibres in the foundation layer can be mechanically bonded, e.g. by airlaying and needling. The fibres in the second layer also can be bonded by air-laying or carding and cross-lapping. At least a portion of the fibres in the foundation or second layer or both can be composite fibres containing at least one potentially adhesive component, e.g. poly- (hexamethylene adipamide) and a copolymer of poly-(hexamethylene adipamide) -poly- (epsilon caprolactan). A blend of fibres can be used in the layers, e.g. the above composite fibre mixed with poly-(hexamethylene adipamide). The fibres can be bonded by heating to activate the potentially adhesive component of the fibres. The aligned fibre tufts can be retracted by at least 10%, e.g. by heating to shrink and/or crimp the fibres before or after bonding and/or napping the structure. There may be a reinforcing layer between the foundation layer and the second layer or the second layer and the tufts. The reinforcing layer can be a woven scrim or bonded non-woven structure.
Patent GB-890699-A (GB)
Title: Process for dyeing or printing fibrous materials of aromatic polyesters
IPC: C08K5/18
Filed: 1960-09-08
Abstract: 890,699. Dyeing or printing polyester fibres; anthraquinone dyes. CIBA Ltd. Sept. 8, 1960 [Sept. 23, 1959], No. 31034/60. Classes 2 (4) and 15 (2). Aromatic polyester fibres are dyed or printed with an α-oxy-α-arylaminoanthraquinone which is free from sulphonic acid groups and of which the aryl residue is substituted by a residue -COOR, in which R represents a hydrogen atom or an alkyl, alkoxyalkyl, cyanoalkyl, aralkyl or aryl group, such as a methyl, ethyl, #-methoxy-ethyl, #-cyanethyl, benzyl or phenyl groups. Dyeing may be effected under pressure at temperatures above 100C., ar alternatively, it may be effected at temperatures up to the boil in the presence of a swelling agent such as benzoic or salicylic acid, o- or poxidiphenyl, chlorobenzene, o-dichlorobenzene, trichloro benzene, phenyl methyl carbinol or diphenyl, the dyestuff being applied in a finely-divided condition together with a dispersing agent. Suitable dyestuffs are the 1-oxy-4-phenylamino-, 1 : 5-dioxy-4-nitro-8-phenylamino-, 1 : 8-dioxy- 4-nitro-5-phenylamino-, 1 : 5-dioxy-4-amino-8- phenylamino- and 1 : 8-dioxy-4-amino-5-phenylamino-anthraquinones which contain in the phenyl residue a substituent -COOR, and mixtures of these dyestuffs may be employed. The dyestuff of the formula is prepared by heating 1 : 5-dioxy-4: 8-dinitro anthraquinone with p-aminobenzoic acid ethyl ester in nitrobenzene. The dyestuff of the formula is prepared by heating quinizarin and leucoquinizarin with boric acid and p-amino-benzoic acid-#-methoxy-ethyl ester in methylglycol. The dyestuff of the formula is prepared by reducing the ethyl ester of 1 : 5- dioxy - 4 - nitro - 8 - (p - carboxyphenyl) - amino - anthraquinone with sodium sulphide.
Patent GB-1494050-A (GB)
Title: Packaging material and apparatus
IPC: B31B41/00
Filed: 1975-07-25
Abstract: 1494050 Making bags E I DU PONT DE NEMOURS & CO 25 July 1975 [26 July 1974] 31209/75 Heading B5D [Also in Division B8] Apparatus for forming a package from tubular plastics open-mesh netting supplied from a reel 100 in rope form comprises means 200 for expanding the netting transversely of the apparatus, means 300 for gathering the expanded netting into a rucked form 31, means 400, for expanding part of the rucked netting longitudinally into a sleeve S, means 500 for positioning closure strips 47, 48, Fig. 7, across the sleeve, and means for adhering the strips 47, 48 together through the meshes of the sleeve to form a bottom closure for the package. Means 600 are preferably provided for severing the sleeve below the closure to form a bag, along with means 700 for facilitating filling of the bag and means 800 for closing its upper end after filling. Portions of the rope are fed to the expanding means 200 by roller means 13 under the control of a limit switch 19 operated by a pivotable weigh scale 14, and rollers 27-30 draw the rope over a tapered horizontal plate 22 for effecting transverse expansion. Overfeeding to the expanding means 400 causes rucking to an extent limited by a detector finger 32. Expansion to sleeve form occurs along an extension 34 of the plate 22, and plates 35, 36 having barbs (not shown) for advancing the sleeves by one bag length at a time are reciprocated by a lug 37 arranged to be advanced by a further lug 39 borne by a stepping drive chain 40. The closure strips 47, 48 are supplied above and below the sleeve 5 from rolls 41, 42, and attachment is achieved by raising a lower platen 52 on a linkage 63 to co-operate with an upper platen 59, the platens having electric heating means (60), (61), Fig. 10 (not shown), to activate adhesive provided on at least one of the rolls 41, 42 of strip material to unite the strips 47, 48, which are severed from the rolls 41, 42 by knife means (55), (56), Fig. 9 (not shown). The bag thus formed is cut from the rest of the sleeve 5 by a knife (70), Fig. 10 (not shown), actuated by a chain 69, Fig. 7, driven from a pneumatic cylinder 65. The bag is then pulled by barbs (75), Fig. 14 (not shown), on a driven chain 72 on to one of a pair of filling shoots 77, 78, Fig. 3, which shoots have an operative and a fixed bag expanding finger 79, 80. Filling is assisted by vibration of the bag on a guide 82, and tranfer to the closing means 800 is then effected, for closing the bag, e.g. by stapling or applying further plastics strips.