baber/WOPTO huggingface dataset:
Patent GB-1401842-A (GB)
Title: Sutures having long-lasting ciocidal properties
IPC: D06M23/00
Filed: 1972-06-22
Abstract: 1401842 Surgical sutures having biocidal properties SUTURES INC 22 June 1972 [12 April 1972] 29340/72 Heading A5E A surgical suture having long-lasting biocidal properties comprises a suture strand having incorporated substantially uniformly therein throughout its length a substantially waterinsoluble salt of a basic antibiotic and an acid antibiotic other than cephalosporin. The method of manufacture of the suture comprises contacting a suture strand with a solution capable of swelling the suture consisting of a solvent and the said water-insoluble salt, so swelling the suture and impregnating the suture with the solvent and the said water-insoluble salt. The solvent is then removed from the suture leaving the water-insoluble salt distributed substantially uniformly throughout the suture strand. The basic antibiotic may be a polypeptide, i.e. bactracin, polymycin, tyrothricin, or vancomycin; a sugar, i.e. neomycin, erythromycin, streptomycin, vancomycin, or nystatin; or a base, i.e. cycloserine, tetracycline, aureomycin, terramycin, gentamicin, or polymixin B. The acid antibiotic is of a penicillin or fumagillin.
Patent GB-340321-A (GB)
Title: Improvements in or relating to methods of and apparatus for drying or conditioning articles
IPC: F26B13/10
Filed: 1929-09-28
Abstract: 340,321. Drying envelopes &c. BRITISH UNITED SHOE MACHINERY CO., Ltd., and SMITH, C. J., Union Works, Belgrave Road, Leicester. Sept. 28, 1929, No. 29403. [Class 34 (ii).] In drying or conditioning gummed flaps of envelopes or other articles of sheet material requiring such treatment locally, means are provided for directing drying medium on to the articles while being carried on a conveyer. The arrangement described is an attachment to a machine, or part of a drying apparatus, having a conveyer, and, as illustrated in section in Fig. 3, comprises essentially two ducts 7, 9, lying close to the conveyer 1, and a cover 25, the medium passing from one duct to the other across the conveyer. In the form of machine shown in Fig. 1 the ducts are U-shaped and the conveyer is an endless belt 1 which may comprise upper and lower tapes between which the envelopes are gripped, passing over drums 3, 5. Air at a temperature of 100‹ F. to 140‹ F. and a humidity of about 50 per cent saturation is delivered through branch pipes 17 to the top and bottom portions of duct 7, and issues through slots 23 across the upstanding envelope flaps on the conveyer into slots in the opposite duct to be exhausted therefrom by suction pipes 21. Baffles 27 cause the medium to issue more or less perpendicularly to the conveyer. The width of each duct tapers as the distance from the feed or suction pipes increases to ensure uniform delivery of the medium. In a modification, Figs. 4, 6, a conveyer 1 passes over five drums three of which, 29, are provided with a pair of arcuate delivery ducts 33 at one end and corresponding exhaust ducts 39 at the other and covers 47 and shrouding 49. The smaller drums 31 have circumferential gaps in which the flaps lie without creasing after passing from the larger drums. Preferably the drying medium is circulated in a closed system e.g. by a fan, and at a speed of about 120 feet per minute across the conveyer.
Patent GB-682249-A (GB)
Title: Improvements in or relating to the production of ammonium phosphate
IPC: C01B25/28
Filed: 1949-11-17
Abstract: <PICT:0682249/III/1> <PICT:0682249/III/2> Ammonium metaphosphate is prepared by supplying elementary phosphorus to a combustion chamber, supplying air thereto at a rate in excess of that theoretically required to convert the phosphorus to phosphorus pentoxide, buring the phosphorus in a combustion chamber at such a rate as to develop in said chamber a temperature in excess of 1000 DEG F discharging the resulting product to a reactor, introducing cooling air and ammonia into the reactor, the cooling air being supplied at a rate sufficient to bring the temperature below the decomposition temperature of ammonia and the ammonia being supplied at a rate sufficient to react with all the phosphorus pentoxide, and discharging the resulting particulate ammonia metaphosphate to a collector supplied with sufficient cooling air to prevent the ammonium metaphosphate particles passing to a sticky or glass-like condition.  Liquid elementary phosphorus is delivered from a water-heated tank 10 through a pipe 16 to a burner 12, primary air being supplied by a duct 17.  The combustion takes place in a fluid-cooled chamber 11. The gaseous phosphorus pentoxide passing out through duct 14 is cooled by air introduced through a pipe 41, Fig. 1a.  Liquid water or steam is supplied through a pipe 34 and p  gaseous ammonia through a pipe 42.  The resulting suspension of solid ammonium metaphosphate formed in a reactor 13 is delivered alternately by a Y-pipe 46 to alternate filter units, one of which 15 is shown.  Cooling air is supplied to each filter unit through a pipe 50.  The powdered ammonium metaphosphate is collected in filter bags 66.  By stopping an exhauster fan 71, opening a vent 83 and operating shakers 69 in the period when the filters are not receiving the discharge from the reactor, the product is shaken into a hopper 61 and removed through a screw-conveyer 63.  The rate of feed of primary air and phosphorus to the burner, of ammonia to the reactor, and of cooling air is automatically controlled by a differential expansion-type thermostat placed in the gaseous suspension of ammonium metaphosphate particles leaving the reactor 13 through the aid of diaphragm valves or dampers operated by pneumatic pressure, Fig. 7 (not shown). Chamber 11 may have a refractory lining 28 thus ensuring that its walls have a sufficiently high temperature to avoid the accumulation of deposits thereon.
Patent GB-1039244-A (GB)
Title: An improved method of arc welding
Inventor: BYSTRAM MIKOLAJ CYPRIAN TOMASZ
IPC: B23K9/133
Filed: 1964-07-20
Abstract: 1,039,244. Welding by fusion. MUREX WELDING PROCESSES Ltd. June 28, 1965 [July 20, 1964], No. 29494/64. Heading B3R. In automatic submerged arc welding the electrode is a metal strip of thickness 0À02 inch max., the electrode projection is 1¢ inches max., the current density is 1À8-2À6 x 10<SP>4</SP> amps/square inch and the electrode is traversed in a direction normal to its width. The width of the strip is 1-3 inches. Where the electrode thickness is below 0À01 inch the electrode is curved transversely as described in Specification 1,013,259. The electrode may be used for cladding or jointing including the jointing of roll-clad sheets. The electrodes may be of a nickel-copper alloy, mild steel, chromium steels containing 18-20À5% or 12À5-14% chromium, and chromium nickel steels containing 17- 28% chromium, 9-22% nickel, manganese, silicon and in some cases molybdenum or niobium-tantalum. Examples are specified.
Patent GB-1003111-A (GB)
Title: Improvements in closure for shipping containers
IPC: B65D39/08
Filed: 1963-07-25
Abstract: 1,003,111. Closures. G. W. TODD. July 25, 1963, No. 29536/63. Heading B8T. A resilient sealing element 28 (Fig. 3) with an interiorly threaded mouth 30 which engages about the filling or bung opening 22 of a shipping container has a flexible vertical wall 32 and a convex upwards bottom wall 34 which is flexed to a concave position (Fig. 4) by a screwed-in plug 42 and the wall 32 is bent outwards to engage beneath the adjacent walls 16 of the container. In the form shown, the mouth of the sealing element is tapered and a central boss 36 has an axial bore which is either threaded or has fins to receive a faucet after a cross-membrane 40 is broken. The plug 42 is recessed with opposed turning fins 52 and has a shoe 54 with a threaded bore aligned with that in the sealing element. The convex wall is either pushed down by the shoe 54 as shown or by a threaded plug 58 which extends through the plug 42 (Fig. 5, not shown). The plugs are additionally sealed by gaskets 50, 60. A cap 20 may be secured on the closure by crimping a downturned skirt 22 which is subsequently removed using a tearstrip. The container may have a liner with its neck disposed between the flange 22 and the sealing element 28.
Patent GB-1245517-A (GB)
Title: Process for the production of 5-methyl-isoxazole-3-carboxylic acid
Inventor: FURTWANGLER HANS-ROLF
IPC: C07D261/18
Filed: 1969-06-11
Abstract: 1,245,517. 5 - Methylisoxazole - 3 - carboxylic acid and esters. FARBENFABRIKEN BAYER A.G. 11 June, 1969 [9 July, 1968], No. 29544/69. Heading C2C. 5 - Methyl - isoxazole - 3 - carboxylic acid, or esters thereof, is prepared by reacting an ester of acetonyl oxalic acid with a molar excess of a hydroxylamine salt in an organic solvent and in the presence of an amount of an acid-binding agent such that 0À01-0À1 mol. hydroxylamine salt is initially available in the reaction mixture to act as catalyst, the ester so formed being hydrolysed to the free acid, if desired. Specified acid-binding agents are alkali and alkaline earth metal oxides, hydroxides, carbonates and bicarbonates. Hydroxylamine hydrochloride and acetonyl oxalic ethyl ester are preferred reactants. Examples describe the preparation of 5-methylisoxazole-3-carboxylic ethyl ester and the free acid. 5-Methylisoxazole-3-carb. oxylic acid is used in the preparation of sulphonyl ureas such as
Patent GB-394210-A (GB)
Title: Improvements in and relating to automatic multi spindle turret lathes
IPC: B23Q39/04
Filed: 1932-10-22
Abstract: 394,210. Multiple spindle lathes. SCHœTTE, A. H., 76, Rheinalle, Deutz, Cologne, Germany. Oct. 22, 1932, No. 29604. Convention date, Nov. 10, 1931. [Class 83 (iii).] A horizontal multiple-spindle work-turret lathe has roughing and finishing tool slides disposed in parallel relationship on separate guide beams and provided with separate feed mechanisms. The slides for the lower roughing tools f in a four-spindle machine are carried by the member k slidably supported on the central circular beam h and fed to the work pieces by a cam drum q, a secondary slide l being provided to resist torsion. The finishing tools g are carried by a slide o supported on guideways along the underface of an overarm i, a separate cam drum u being provided for the feed in this case. Both cam drums are driven from the shaft r at the same speed, the upper one being connected to the lower by worm gearing.
Patent GB-380281-A (GB)
Title: Improvements in planting and seed sowing machines
IPC: A01C11/02
Filed: 1931-10-26
Abstract: 380,281. Planting - machines; distributers for seeds. BRIN, P. and DENIS, F., 54, Boulevard Gustave Richard, Cholet, Maine-et-Loire, France. Oct. 26, 1931, No. 29649. [Class 6 (i).] A planting machine comprises a rotary drum having peripheral compartments to be filled by the operator while passing in front of his seat, tilting means to receive the plants from the drum, and gripper mechanism for gripping plants, carrying them into a vertical position, and despositing them in a furrow cut by a share, the furrow being afterwards filled in by inclined rollers or other means. The tilting means and the grippers may be dismounted or put out of action and the machine used for distributing tubers and seeds. The rollers may be replaced by rakes or mouldboards. The machine frame 1 rests on two front wheels 2 and two inclined rear rollers 5. The cranked axle of the wheels 2 may be partially rotated by means of a hand-wheel and worm gearing, and one of the wheels is adjustable laterally. The share 11 comprises an inclined cutter 12, parallel cheek plates 13, and two adjustable hinged wings 14. The drum 17 comprises notched discs 18, 19, 21, a vane wheel 20, and distance-pieces 22. A tensioned endless belt 23 holds the plants in the notches, or the seeds in the cells formed by the vanes, until they arrive over the counterweighted tilting flap 26. The rotary grippers comprise pairs of arms 28, 29 pivotally connected together and one movable relatively to the other in the plane of rotation under the control of springs 34 and a cam 33. The arms terminate in arch-shaped members which close on the plant on the tilting flap 26 and carry it round into the vertical position, and then open and deposit it in the furrow. The flap is tilted by fingers 36, 37. The drum 17 is driven at variable speeds by a star-wheel 44 movable along a shaft 43 so as to bring it into engagement with one of a series of rings of holes in a disc 47, the shaft 43 being driven from one of the wheels 2 through the gearing shown. The gripper shaft 32 is driven from the disc 47 by chain and bevel gearing. The belt 23 is driven by frictional engagement with the drum 17.
Patent GB-681441-A (GB)
Title: Improvements in apparatus for distance measuring by sonic or supersonic waves
IPC: G01S1/72
Filed: 1949-11-21
Abstract: 681,441. Recording-apparatus. BENDIX AVIATION CORPORATION. Nov. 21, 1949 [Jan. 25, 1949], No. 29761/49. Addition to 666,263 [Group XXXVIII]. Class 106 (iv). A modification of the distance measuring apparatus of the parent Specification comprises a stylus carriage moving in a closed path supporting a spring wire stylus whose free end trails across a record surface and is embraced by a wire loop extending from the carriage around the stylus to damp vibrations as the stylus leaves the edge of the record surface. A belt 33, Fig. 1, is driven by a motor 42 and carries a stylus 32 and brush 47 trailing the stylus 32 across a record surface 15 and the brush 47 over contact strips for completing electrical-circuits to cause recording discharges through the stylus 32. The stylus 32 and brush 47 are secured to the ends of a metal frame 49 whose sides have holes at their mid-points to receive the conical ends of a pivot bar 50 embedded in a rubber block 51 secured as by vulcanizing to the belt 33. The stylus 32 is formed of spring wire in one with a loop 60 which has its points of attachment to the carriage slightly offset to accommodate the stylus between its arms which it then guides and restrains from undue vibration when the stylus is drawn over the edge of the record surface.
Patent GB-1218744-A (GB)
Title: Vehicle mounted boom
Inventor: BARBOUR JAMES WIGHT
IPC: A01M7/00
Filed: 1967-06-28
Abstract: 1,218,744. Crop sprayers. CHEMICAL SPRAYING CO. Ltd. 11 June, 1968 [28 June, 1967], No. 29811/67. Heading A1D. A boom constructed to support a crop spraying device 10 and prevent the outer end striking the ground, has an inner member 12 which is attached at one end to a vehicle and at the other end has an extension 13 which is pivoted about a horizontally disposed pin (20), Fig. 2 (not shown), and is counterbalanced by a strut 23. A rod 17 rotatably connects the extension to the boom, an abutment (22) limiting the movement. The strut 23 is located in a collar 24 which is pivoted to the rod 17. A spring 25 resiliently supports the extension 3 whilst a corrugated rubber sleeve 26 provides damping for pivotal movement. The inner end of the member 12 is pivoted by a rod 14 to a frame 11 which is rigidly attached to a tractor. Strut 28 is located in a collar 29 which is pivoted to the shaft 14. A sprocket 16 is attached to the frame 11 whilst a sprocket 18 is attached to rod 17. An endless chain passes around both sprockets and the ratio is 2 : 1 so that as member 12 is pivoted to lie against the tractor, the extension pivots to lie alongside member 12. In a modification a weight is slidably attached to the extension to alter its inertia. In a second modification the damping means 26 is a hydraulic or pneumatic dashpot. In a further modification hinge pin (20) is replaced by a resilient member, e.g. spring steel. A feeler member may be mounted near the outer end of the extension with a foot member to further prevent the boom end from striking the ground.
Patent GB-1031788-A (GB)
Title: Improvements in or relating to telecommunications exchange systems
IPC: H04Q3/00
Filed: 1963-07-29
Abstract: 1,031,788. Automatic exchange systems. SIEMENS & HALSKE A.G. July 29, 1963 [April 11, 1963], No. 29900/63. Heading H4K. Test apparatus similar to that disclosed in Specification 1,007,959, which is able to distinguish between an idle circuit and one that is just releasing after use is provided with further means whereby, after an idle circuit has been tested, a second test is made after a brief interval. For this purpose the responding relay P connects up a slow-operating relay Q which momentarily interrupts the busy potential applied by P. The relays Q of different test units may have different operating times, thus preventing two test units seizing the same circuit. Moreover, should the test path include a cable exhibiting capacitance, the test potential of a circuit that is releasing is affected by the discharge of the cable and may appear at first similar to that of an idle circuit. The second test is made before the test potential reaches a steady value and thus distinguishes between the two conditions. A second embodiment is described in which the functions of the relays are performed by bi-stable circuits.
Patent GB-1133062-A (GB)
Title: Improvements in or relating to rotary electric machines
Inventor: FONG WILLIAM
IPC: H02K3/28
Filed: 1966-07-04
Abstract: 1,133,062. Winding layouts for dynamoelectric machines. NATIONAL RESEARCH DEVELOPMENT CORP. 30 June, 1967 [4 July, 1966], No. 29950/66. Heading H2A. In a machine having pole-changing by means of pole-amplitude modulation, the relative balance of the three phases is improved by the use of two or three similar windings mutually displaced by a phase position so that the imbalances cancel out. If three identical windings are connected in different positions to the three phases of the supply, the resultant impedances of the phases will be identical and the load perfectly balanced. In cases in which the slotnumber is divisible by 3, the winding is arranged as three separate units which are connected together. For example, if a change-pole winding in 60 slots is required, this is wound as three windings each in 20 slots. Since it is not possible to distribute 20 slots equally between three phases, it is necessary to use an unsymmetrical coil grouping. But by interleaving the other two windings in every third slot, the imbalance is greatly reduced. Various other arrangements are described.
Patent GB-843363-A (GB)
Title: Improvements in or relating to photographic desensitising compounds
Inventor: DUFFIN GEORGE FRANK
Filed: 1957-09-25
Abstract: Dyes of the general formula:  <FORM:0843363/IV (c)/1> wherein Ra is an alkyl or aralkyl group, Rb and Rc are H atoms or together complete a fused-on benzene ring, D completes a 5- or 6-membered heterocyclic nucleus, n is 0 or 1 and X is an anion, are prepared by reacting a cyclammonium quaternary salt having a reactive a  or g  methyl group with pyridine- or quinoline -3-aldehyde.  Examples are given of the preparation of dyes wherein Ra is methyl or ethyl and D completes a thiazole, benzthiazole, benzoxazole, benzselenazole, indolenine, pyridine, quinoline or pyridazine (including its 3-methylthio derivative), any of which may carry substituents. According to the Provisional Specification, the pyridyl ring may have alkyl, aryl or aralkyl substituents.
Patent GB-1065435-A (GB)
Title: Method of preparing an agent for preventing contamination of air by carbon monoxide
IPC: B01J29/076
Filed: 1965-07-15
Abstract: An oxidation catalyst comprises forming a uniform mixture of (i) powdered natural zeolite ore which has been activated by treatment with dilute hydrochloric acid and a substantially equal weight of (ii) a mixture consisting of from 60 to 70% by weight of powdered manganese oxide and 40 to 30% by weight of powdered copper oxide, and moulding the mixture obtained under pressure to form granules or tablets.
Patent GB-719211-A (GB)
Title: Process for the gasification of comminuted or fine-grained fuels
IPC: C10J3/46
Filed: 1950-01-02
Abstract: 719,211. Gas producers. DEMAG AKT.-GES. Jan. 2, 1950 [Oct. 1, 1948; Oct. 1, 1948; Oct. 1, 1948 ; Oct. 1, 1948], No. 30208/49. Class 55 (1) In gasifying comminuted or fine-grained fuels by passing a gasifying medium downwardly through the fuel bed, the downward flow is interrupted at intervals and during such interruptions the fuel bed is fluidized, by passing a gaseous fluidizing medium upwardly through the bed, to permit cinders and clinker to sink to the bottom. The fluidizing medium may consist of inert gases, e.g. nitrogen or flue gases, or may consist partly or wholly of a gasifying medium. When a gasifying medium is used in fluidizing the bed it is usually necessary to introduce a purging step, which consists of passing inert gases through the fuel bed, before and after the fluidizing step. The purging steps may be avoided if the amount of gasifying medium in the fluidizing medium is kept within safe limits. During loosening of the fuel bed by the upward flow of the fluidizing medium, the fuel bed may be charged with fresh fuel, e.g. coal, and a simultaneous sifting of the charge may be effected by passing the fluidizing medium upwardly at such a pressure that the finest components of the fresh coal are b'own out of the producer vessel. The dust so blown out may be isolated by normal methods and returned to the producer during the gasification step by the downwardly flowing gasifying medium. Alternatively, liquid or gaseous fuels alone or in conjunction with coal dust may be blown in during the gasification step.
Patent GB-1019852-A (GB)
Title: Improvements in or relating to the regeneration of absorbent materials charged with impurities
IPC: B01D53/04
Filed: 1962-08-07
Abstract: An impure gas (or gas mixture) is purified by adsorbing the impurities on a bed of adsorbent and (a) regenerating the bed by means of a gas of the same composition as, but hotter than, said impure gas, (b) cooling a portion of the bed by means of a cold gas (or gas mixture) free from adsorbable impurities and (c) cooling the remainder of the bed by passing through said portion and the remainder of the bed, a stream of said impure gas.  The bed is then in a suitable condition for a further adsorption step. The process is described in relation to the purification of air from CO2, moisture and/or hydrocarbons for subsequent low-temperature separation into oxygen and nitrogen and the purification of hydrogen, helium and hydrocarbon mixtures is also mentioned.  Specified adsorbents are silica gel, activated alumina and synthetic zeolites, e.g. a 5 molecular sieve.  Four embodiments are described.  (1) (Figs. 1a, 1b, 1c, not shown). In phase a, first adsorbent bed 3 is used to purify air whilst adsorbent 9 is regenerated by passing ambient air at 100 DEG C. therethrough.  In phase b initially nitrogen separated from the purified air is passed through adsorbent 9 to effect cooling of part 18, of the adsorbent, the remainder of the cooling being effected by the air to be purified.  In phase c adsorbent 9 is used for adsorption while adsorbent 3 is regenerated.  (2) In place of the partial nitrogen cooling of embodiment (1), cooled ambient air is cirulated in a closed path, Fig. 2b (not shown), whereby part of the adsorbent, 20, is cooled, while a part 19 adsorbs impurity in the circulating air.  (3) In place of the partial nitrogen cooling of embodiment (1), purified air from the first adsorbent bed 3, Fig. 3b (not shown), is passed into the hot adsorbent to effect the cooling of part thereof before directly passing the ambient air thereinto for further cooling and adsorption, Fig. 3c (not shown).  (4) Three beds are cylically employed, Fig. 4a (not shown), purified air from first bed (3) in adsorption phase being used to cool adsorbent in the second bed (9) which has been heated by hot ambient air, in the preceding phase.  Bed 24 is shown in the heating and regenerating phase.