baber/WOPTO huggingface dataset:
Patent GB-1167083-A (GB)
Title: Assay Method for Amylase
IPC: C08B31/00
Filed: 1967-01-06
Abstract: 1,167,083. Determination of amylase. WARNER-LAMBERT PHARMACEUTICAL CO. 6 Jan., 1967 [20 Jan., 1966], No. 1011/67. Heading B1X. [Also in Division C3] Amylase is determined using as substrate a compound of formula (C 6 H 10 O 5 ) n D, where n is a large whole number, (C 6 H 10 O 5 ) n  is a naturally occurring starch, amylase or amylapectin polymer and D is a residue of a dyestuff reactive with the polysaccharide (see Division C3), preferably in a buffered aqueous solution. The amylase-containing fluid sample is mixed with the dyed polymer and the mixture incubated at 37C for 10 min., then any protein and unreacted dyed polymer is precipitated, e.g. with tannic acid, and the optical density of the supernatant fluid is determined. A phosphate buffer at pH 7 is specified. The dyed starch-buffer solution may be lyophilized and reconstituted by adding water when required.
Patent GB-1336272-A (GB)
Title: Pickling of metals
IPC: C23G3/00
Filed: 1972-01-10
Abstract: 1336272 Coiling sheet metal A MORHARD and S MORHARD 10 Jan 1972 [18 Jan 1971] 1024/72 Heading B3E [Also in Division C7] A metal strip 1 to be pickled is fed from a reel 5 through rollers 13, 12, 14 to a ring 9 and clamped to its inside. The ring 9, which has carrier arms 9b, is rotated relatively slower than the reel 5 so that a spring strip is produced. The reel 5 is lifted together with a platform 7 which is then rotated intermittently to bring the coil to station 3, where it is lowered into a pickling tank (Fig. 3, not shown). After pickling, washing, and drying at station 3, the platform 7 is rotated to bring the coil to the rewinding station 4. The sprung coil is wound with spacing wires 32, 33 of titanium or plastic having thick parts 32a, 33a. The end of the coil is passed through rollers 15, 12 and rewound on to a reel 6. In a modification the same station may be used for forming the sprung coil and for rewinding.
Patent GB-960761-A (GB)
Title: Improvements in or relating to the determination of nutron flux distribution in nuclear reactors
Inventor: CAMPBELL RONALD HUGH
IPC: G21C17/108
Filed: 1962-01-11
Abstract: 960, 761. Monitoring reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Jan. 2, 1963 [Jan. 11, 1962], No. 1048/62. Addition to 913, 489. Drawings to Specification. Heading G6C. A method of determining neutron flux distribution in the core of a nuclear as in the parent Specification wherein a filament of fluid is introduced into the core and subsequently scanned to measure the distribution of its radioactivity, is characterized in that irradiation of the filament occurs between regions where the density of the ambient flux is subjected to a localized change. The fluid may be argon and may be passed through small bore U- shaped tubes extending along the length of the reactor core. At the points where each tube enters and leaves the core it is surrounded by neutron absorbing collars which locally reduce the neutron flux; consequently the record of radioactivity will show prounounced dips corresponding to parts of the filament of gas which were adjacent the collars.
Patent GB-1292677-A (GB)
Title: Improvements in or relating to harvesting machines
Inventor: ROWLAND-HILL EDWARD WILLIAM
IPC: A01F7/06
Filed: 1970-01-09
Abstract: 1292677 Harvesting machines SPERRY RAND CORP 9 Jan 1970 [9 Jan 1969] 1088/70 Heading A1F A combine harvester comprises two axialflow threshing and separating units 30 and 32 disposed sidle-by-side generally longitudinally of the harvester and grain-cleaning means 55 extending the full width of the combined units 30 and 32. Crop material is fed by a conveyor 28 to fed augers 100a mounted on the oppositely-rotating shafts 92a and 92b of the units 30 and 32, is threshed by rotors 11 and 115 co-operating with concaves 118a and 118b, is further separated by the blades 126 of rotors 124a co-operating with grates 128, and is discharged at 122a onto parallel longitudinal grate members 146 along which it is moved for further separation by the fingers 148 of a chain conveyor 140 to be finally discharged through the bottom or deflected through the sides of the harvester. The threshing rotors 111 and 115 each comprise two- or three-armed spiders 112 supporting a continuous longitudinal surface 113 carrying rasp bars 114 (or spikes) and the, threshing rotors 111 and 115 blow air down through the concaves 118a and 118b and above and along a. grain pan 66 of the cleaning means 55 to remove the lighter chaff. The rasp bars 114 carry inclined rasps 127 co-operating with adjustably-mounted concave bars 129a and 129b and removable wires 119a and 119b. The grates 128 are similar to the concaves in construction. Vanes 116 deflect the crop material axially of the units 30 and 32. The grain separated by the concaves, grates and members 146 falls directly, or via an oscillating grain pan 66, onto oscillating grain-cleaning means 55 which comprises chaffer sieve 62 and then a grain sieve 63, the tailings collecting in an auger 40 from where they are conveyed by an elevator 38 back to the feed augers 100a. The rotor shafts 92a and 92b are driven by a common shaft driven via variable diameter pulleys by an engine 70.
Patent GB-1298087-A (GB)
Title: Improvements in or relating to pressing machines
Inventor: BETTARINI RICCARDO
IPC: D06F71/06
Filed: 1970-01-09
Abstract: 1298087 Pressing machines R BETTARINI and G PACINI 9 Jan 1970 [11 Jan 1969] 1110/70 Heading B5N [Also in Division D1] A pressing machine for fabrics comprises a fixed surface 3, means for heating the fixed surface, an impermeable and deformable diaphragm member, e.g. of silicone rubber, forming a pressing surface arranged to co-operate with the fixed surface, the diaphragm member defining at least in part a sealed chamber, means for moving the diaphragm member towards and away from the fixed surface, two carriages supported on guideways for interposing fabric to be pressed into the space between the surfaces, means for inflating the diaphragm member to perform a pressing operation when the two surfaces are closely spaced from one another and control means for rendering the moving means inoperative if the carriages are incorrectly positioned. The diaphragm member may be secured peripherally to a movable rigid structure 13 having a conduit communicating with a supply of compressed air to cause inflation of the diaphragm member. A flexible sheet which is permeable and a thermal insulator, e.g. of felt, may be arranged on the diaphragm member. The means for moving the diaphragm member may comprise a plurality of toggle linkages. Frame 43 which moves on an upper bar with the aid of rollers and frame 143 which moves similarly on lower bars each carry a fabric piece on which are arranged the fabrics to be pressed, and a small frame carrying a sheet of polytetrafluoroethylene which prevents adhesion of the fabrics to be pressed against the heated surface 3, permit switches 50A and 50B allow press operation to take place only when one of the frames 43 or 143 actuates one of the switches 50A and is located to allow replacement of the treated fabrics and when the other of the frames 43 or 143 actuates one of the switches 50B in the pressing position.
Patent GB-157291-A (GB)
Title: Improvements in and relating to tip lorries
IPC: B60P1/16
Filed: 1921-01-08
Abstract: 157,291. Soc. Anon. A. Saurer, (Assignees of Saurer, A. [Firm of]). June 7, 1916, [Convention date]. Cataracts.-Fluid pressure for tipping a lorry body is delivered by a pump through the pipe 14,. through a nozzle 30, and first through perforations 38 in a valve casing 33, and then, under increased pressure, through a nozzle 37 and perforations 35 in a spring-pressed valve 32. The liquid moves a piston the cross-head of which is connected to two tipping-levers on the lorry frame. When the body is fully tipped, the piston uncovers a port to allow the fluid to flow back to a supply tank, and after the port is closed, the liquid is forced back through the perforations 35, 37 and nozzle 30, thereby damping the return movement.
Patent GB-770633-A (GB)
Title: Process for the production of foamed products
IPC: C08G18/62
Filed: 1955-01-13
Abstract: Foamed products are produced by reacting a polyisocyanate with a derivative of a copolymer of carbon monoxide and an olefin, the derivative containing a plurality of functional groups, one of which is a hydroxyl group and another of which is either a hydroxyl or carboxyl group, the reaction taking place in the presence of water but preferably in the absence of water when the derivative contains both hydroxyl and carboxyl groups.  Specified copolymers are those from carbon monoxide and ethylene, propylene and butylene or mixtures containing these olefins.  The copolymers, which act as polyketones, may be reduced by pressure hydrogenation to polyalcohols which may be partially esterified with saturated or unsaturated mono- or dicarboxylic acids or dicarboxylic acid anhydrides, e.g. propionic and maleic anhydrides.  Alternatively, the polyketone may be reacted with formaldehyde or partially reduced and then reacted with formaldehyde to form methylol compounds.  The copolymers may also be mixed with up to 50 per cent of polyesters, polyester amides, polyglycol ethers or hydrogenated phenol-formaldehyde resins.  The specified polyisocyanate is toluylene diisocyanate, while polyisocyanates produced by reacting polyalcohols, polyglycol ethers or polyesters containing hydroxyl groups with diisocyanate in excess of that required to react with the hydroxyl groups, and substances which split off isocyanates, e.g. phenyl urethanes and addition products of polyisocyanates with malonic esters or acetracetic esters may be used.  Specifications 598,145, [Group IV], and 769,680 are referred to.
Patent GB-485744-A (GB)
Title: System of glasshouse ventilation
IPC: A01G9/24
Filed: 1938-01-13
Abstract: 485,744. Ventilating glass -houses. DRIFFIELD, J. Jan. 13, 1938, No. 1126. [Class 137] Fresh air is admitted to a glasshouse below the eaves of the roof, passes upwardly, and is extracted by one or more flues in the roof. A flue consists in a galvanized iron pipe A having at its top end a conical cap A<1> supported on brackets A<2>, and at its base a disc valve B rotation of which controls the up-draught through the flues.
Patent GB-1018071-A (GB)
Title: Improvements relating to high-voltage electrical bushing insulators and their manufacture
Inventor: ROTHWELL KENNETH
IPC: H01B17/28
Filed: 1961-01-11
Abstract: 1,018,071. Bushing insulators; sealing cable joints. A. REYROLLE & CO. Ltd. April 10, 1962 [Jan. 11, 1961], No. 1128/61. Headings H2C and H2E. A high voltage insulating bushing which incorporates capacitive stress-grading inserts embedded in a filled cast-resin dielectric is made by supporting tubes 21, 22, 23 and 24 of porous solid insulation coaxially by their ends with thin conductive capacitive layers 25, 26, 27 and 28 wound about the tubes, which are perforated at least at their ends, and filling all the spaces between the tubes with an uncured or partly cured liquid synthetic resin incorporating an inorganic filler, e.g. silica, flour, and allowing or causing the resin to cure. In a modification (Fig. 3, not shown) instead of the bushing being of internally stepped diameter as at 11, 12, 13 and 14 of Fig. 2 (not shown), the diameter is varied to form a rounded thread so that the protruding bosses of the mould can subsequently be screwed out of the bushing after the resin is cured. A further embodiment (Fig. 4, not shown) incorporates an insulated perforated supporting shell formed in two longitudinal halves assembled around the bushing conductor with steps in the frustoconical ends of the shell supporting coaxial paper tubes and the assembly is placed in a mould and vacuum-impregnated with filled liquid casting-resin. The shell itself may constitute the mould and/or remain surrounding the bushing to form an outer casing. An application to a cable joint is described (Fig. 6, not shown) wherein the abutting insulation of the cables are tapered in steps and perform the same function as the bosses 20 of the mould of Fig. 1. The resin may be of the epoxy or polyester type or a thermoplastic resin such as nylon or polypropylene.
Patent GB-693684-A (GB)
Title: Improvements in or relating to machines suitable for applying coating material to workpieces
IPC: A43D25/18
Filed: 1950-01-17
Abstract: In a machine for applying coating material to workpieces a coating-applying nozzle comprises a group of similar coating delivery members having holes occupying similar positions therealong, a supporting member for said group arranged to hold the delivery members with their side faces in parallel relation to each other, and to permit pivotal movement of said members and a pivot pin or the like about which the pivotal movement of the members can take place, arranged to pass obliquely, relatively to the side faces of said members through said holes and to cause the group of delivery ends of the group of delivery members to lie upon a line occupying an oblique relation with respect to side faces of the group.  Referring to Figs. 2 and 3, the nozzle 10 is made of a group of identical coating delivery members 60 made from plates of equal length hinged for up and down movement upon a pivot pin 62 extending obliquely between links 64, 66 of forked block 68, and through members 60.  Each member 60 has at the end of a passage 70 an outlet lying in a groove 72. <PICT:0693684/III/1> <PICT:0693684/III/2> <PICT:0693684/III/3> Each plate 70 has a hole 74 to take pivot pin 62 this hole being enlarged horizontally, Fig. 3.  When the plates are arranged between the parallel links 64 and 66 of forked member 68 the relation of the oblique pin 62 to the side faces of members 60 causes one corner only at each end of hole 74 to engage the pin, Fig. 7.  But since only a small vertical movement of the work contacting ends of the delivery plates 60 takes place as they swing about pin 62 the plates can move freely up and down the required distance while downward movement is limited by engagement of portions 76, Fig. 3, with recessed portions of block 68.  Delivery plates 60 are urged downwardly against the crank by wire springs 80 on plate 92 attached to block 68, the lower end of the springs sliding in grooves 84, Fig. 7.  The delivery of coating material to passages 70 of the delivery members is effected as is usual in this type of nozzle through small tubes 86.  U.S.A. Specification 2,293,209 is referred to.
Patent GB-103509-A (GB)
Title: Improvements in Portable Typewriting Machines.
IPC: B41J3/37
Filed: 1916-01-25
Abstract: 103,509. Marks, E. C. R., (Corona Typewriter Co.). Jan. 25, 1916. Addition to 103,508. Folding machines; locking - devices; type-lever machines; case-shift mechanism.-The folding machine described in the parent Specification is modified by arranging the movable member of the two-part framework to slide on the stationary member. As shown, the movable member 23, supporting the platencarriage 11 and associated mechanism, is formed at each side with slots 35, 37 engaging projections 34, 36 on the stationary member 22 which supports the keyboard. The member 23 overlaps the mernber 22, spacing-bosses being formed on the member 22. The projections 34, 36 consist of screws which enter the bosses, the screws 34 being formed with heads, and the screws 36 being formed as thumb-screws provided with shoulders which can enter seats at the ends of the slots 37 to lock the member 23 in the operative position, or in the collapsed position shown, for transport of the machine. One or both slots of each pair may be formed in the member 22. The slots 37 are preferably steeper than the slots 35, the arrangement causing the rear part of the member to drop more than the front part in collapsing the machine. The printing-members consist of typelevers 13 mounted in a segment pivoted on the member 22 and operated by shift-key levers. Letter-spacing mechanism; ink-ribbon mechanism.-An escapement 55, a ribbon-vibrator, and feed-devices for the spools 88 are mounted on the member 23 and are operated by a universal bar which is mounted on the member 23 and is not connected to the keyboard. Housings 91 for the spools are formed on lugs 89 on the member 23,
Patent GB-1470034-A (GB)
Title: Platinum
IPC: B01J23/96
Filed: 1975-12-12
Abstract: 1470034 Amorphous Pt particles BRITISH PETROLEUM Co Ltd 12 Dec 1975 [13 Jan 1975] 1276/75 Heading C7D Amorphous platinum metal particles are characterized in that they do not produce the x-ray diffraction pattern characteristic of crystalline platinum. The amorphous Pt particles may be produced by bringing a material containing finely divided Pt in a highly oxidized state on a refractory support, e.g. alumina, silica, magnesia or a zeolite, to a temperature of at least 300‹C in a non-reducing atmosphere, reducing with hydrogen at a temperature of at least 300‹C under super-atmospheric pressure and contacting the reduced material with a solvent, e.g. caustic soda, HF, HNO 3 , HCl, H 2 SO 4 , so that the support is dissolved and separating the suspended amorphous Pt metal particles from the solution, e.g. by centrifuging, filtration, flocculation or the use of membranes. The finely divided Pt starting material may be prepared from commercial reforming catalysts by regeneration, burning in oxidizing gas, or rejuvenation, treating with O 2  and Cl 2 , or may be prepared by treating the refractory support with a solution of a Pt compound, e.g. by impregnation or ion-exchange, and reducing the metal compound to produce finely divided Pt on the refractory support. The amorphous Pt product may be used in electrodes for fuel cells and batteries.
Patent GB-228871-A (GB)
Title: Improvements in and relating to ear pieces
IPC: H04R1/10
Filed: 1925-01-15
Abstract: 228,871. Lindemann, B. Feb. 6, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Earpieces.-Discomfort to the ear in the prolonged use of a telephone receiver is prevented by the provision of a. hollow member of soft resilient material such as sponge rubber with an opening 13 at one side to enable it to be slipped over the earpiece 16 and an opening 14 at the other side for sound emission. The material may be in one piece or in two pieces cemented or otherwise joined together along the central plane 12.
Patent GB-879260-A (GB)
Title: Improvements in power plant
Inventor: PETERS MARTIN CHARLES
IPC: G21D5/08
Filed: 1958-01-14
Abstract: 879,260. Nuclear power plant. BABCOCK & WILCOX Ltd. Jan. 14, 1959 [Jan. 14, 1958], No. 1323/58. Class 39(4). In a nuclear reactor power plant, a multistage turbine is supplied with steam from a boiler heated by the carbon dioxide coolant of the reactor. The turbine steam is reheated between stages by pressurised water circulating, separately from the steam raising circuit, in a closed circuit between heat exchangers at the turbine and in the boiler. As shown, the turbine 15 is is supplied with steam from the superheaters 47, 57 within the boiler unit 7. Condensate from the turbine is returned, by pump 19, to the economisers 23, 33, steam generators 12, 13 and steam and water drums 27, 37 of the boiler unit. The latter is heated by the carbon dioxide coolant gas from reactor 1. The intermediate and low pressure stages 15I and 15L, of the turbine are connected by the heat exchanger 63 and the steam is heated in the latter by a liquid circulated through 63 and the heat exchanger 85 by the pump 83. The liquid may be pressurised water, sodium or potassium. Specification 738,286 is referred to.
Patent GB-509475-A (GB)
Title: Improvements in or relating to apparatus for playing games
IPC: F42B6/00
Filed: 1938-01-14
Abstract: 509,475. Projectiles for games. WALKER, J. R. Jan. 14, 1938, No. 1331. [Class 132 (iii)] A projectile for playing games comprises a solid ball-like body of substantially spherical or part-spherical shape, and a rigid radial flight portion with a radial metal spike, or suction cup diametrically opposite to the flight. The projectile shown in Fig. 1 is used in a game termed " bowl-darts," that in Fig. 4 in " golfdarts." The latter may be made from a shuttlecock with a spike 4 and a ring 13 to protect the dart and flight from damage by the golf club, and may be struck towards a target. According to the Provisional Specification, the spike 4 may be omitted.
Patent GB-561318-A (GB)
Title: Improvements in or relating to measuring taps
IPC: G01F11/32
Filed: 1943-01-27
Abstract: 561,318. Measuring taps. TURLEY & WILLIAMS, Ltd., SMITH, C. D., and OTTON, D. H. Jan. 27,1943, No. 1351. [Class 106 (v)] In a measuring tap comprising a chamber in which a plunger operates to close the liquid inlet, open the discharge outlet and admit air to the chamber, the effective capacity is varied by means of replaceable sleeves 6 of varying thickness mounted on the plunger 4. The sleeve operates the air inlet valve 3 and may be fitted with detachable rings.
Patent GB-618428-A (GB)
Title: Direct fired unit air heaters
IPC: F24H3/08
Filed: 1946-01-15
Abstract: 618,428. Air-heating stoves. DRAVO CORPORATION. Jan. 15, 1946. No. 1370. Convention date, March 5, 1945. [Class 64(i)] [Also in Group XII] In a direct fired unit air heater of the type described in Specification 554,401, the combustion chamber 2, arranged within and spaced apart from the walls 3, 4, 5 of the heater, is constructed so that the walls of the lower body portion are formed of refractory lined plain sheet metal 26 and the side walls of the upper portion of the chamber are formed of sheets 27 and 28 of corrugated metal, being inwardly curved and joined at 29 to form the top of the combustion chamber. The corrugated sheets are welded to a horizontal flange 37 formed by bending the edge of the sheet 26 outwards or welding an angle iron to the edge of the sheet. Air is drawn by fans 21 through the annular passage formed between the combustion chamber 2 and the walls 3, 4, 5 and is preheated by passing over tubes 14 through which the waste combustion gases flow. The preheated air then flows over deflectors 36 and passes off through louvred cowls 25 to the space to be heated.
Patent GB-551438-A (GB)
Title: Improvements in or relating to method of and apparatus for presetting a textile article, and the product resulting therefrom
IPC: D06C5/00
Filed: 1941-02-04
Abstract: 551,438. Treating textile articles ; garment stands. STEVENS, A. H. (Paramount Textile Machinery Co.). Feb. 4, 1941, No. 1477. Addition to 547,034. [A Specification was laid open to inspection under Sect. 91 of the Acts, Feb. 9, 1942.] [Classes 2 (ii), 15 (i) and 15 (ii)] [_Also in Group XIV] In a process for the manufacture of fabric articles from fibre-forming polyamides as in the parent Specification, the pre-settingstep is carried out while the article is suspended by means having no disturbing effect on the fabric meshes. As shown, stockings are impaled by the toe or welt on needles 125, Fig. 8, projecting from a base 123 carried by an upright 122 fitted with a sliding guard 131 and with an enlarged top 137 by means of which it is hung in a transversely slotted channel-shaped magazine member 143 and retained therein by a clip 142. The magazines are secured as by spring clips 154 in a chamber 11, Fig. 7, to which steam 'for pre-setting is admitted by a perforated pipe 43 behind a baffle 41; the magazines may be suspended by hooks from fixed horizontal rods. Hot air is supplied to the cabinet by a fan and steam heating unit 36, and steam for the pre-setting operation by automatic regulating means of known type. To facilitate loading and unloading the magazines, a stand is provided having clips similar to the clips 154, 142 for supporting a magazine and a suspending device.
Patent GB-538135-A (GB)
Title: Process of calcining comminuted limestone
IPC: C04B2/10
Filed: 1940-01-25
Abstract: 538,135. Lime. AMERICAN ZINC, LEAD & SMELTING CO. Jan. 25, 1940, No. 1543. Convention date, Feb. 23, 1939. [Class 1 (iii)] Lime is produced by calcining limestone which has been ground to pass a sieve of 8 meshes per square inch, at about 700‹C. in an atmosphere of steam with exclusion of air. The process may be effected in a stationary chamber or in a rotary cylinder.