baber/WOPTO huggingface dataset:
Patent GB-1166786-A (GB)
Title: Apparatus for Edge Trimming Fabrics
Inventor: HOLM WILLIAM JARVIS
IPC: D06H7/06
Filed: 1968-05-16
Abstract: 1,166,786. Trimming fabrics. RIGGS & LOMBARD, Inc. 16 May, 1968, No. 23258/ 68. Heading D1S. Apparatus for trimming threads 16 formed along the edge 14 of a fabric web 10 comprises a rotary shearing head 38 of a length substantially less than the width of the web 10, the head 38 .being mounted for rotation about an axis perpendicular to the longitudinal movement of the web 10 and parallel to the plane thereof, means for advancing the web 10 to carry the edge 14 into shearing contact with the head 38, and guiding means to maintain the edge 14 and the head 38 in predetermined relation. As shown, the web 10 is woven on a shuttleless loom and has a straight selvedge 12 with no loose threads and a selvedge 14 formed with a fringe 16 of bulky threads to be removed. The trimming apparatus comprises a carriage 20 horizontally movable along fixed supports 22, 24. Two rotary shears 38 are mounted on the carriage 20 to extend one on each side of the web 10 and are each driven by a motor 42. A ledger knife 44 is mounted on the same side of the web 10 as each shear 38 and a fabric rest 46, 48 is provided on the opposite side of the web to each shear 38. Each rest 46, 48 is provided with a nose portion 50 movable into and out of fabric-engaging position by a lever 52. A web edge sensing head 53 is mounted on the carriage 20 ahead of the first shearing unit and includes leg portions 54, 56 to span the margin of the edge 14. Compressed air passes through a conduit 58 and is directed downwardly against the selvedge 14. A slot is formed in the portion 56 and communicates, through a conduit 60, with a control unit 59. Movement of the edge 14 causes a change in the pressure to a diaphragm 62 which is displaced to or from a hydraulic relay 64 controlling a valve 66 which directs fluid to either end of a hydraulic cylinder 68 the piston rod 74 of which shifts the carriage 20 so that the shears 38 follow the edge 14. The sensing head 53 is adjustable in position so that all of the cutting action is not done by one small section of the shears 38 and knives 44. The sensing head 53 may be adjusted to jog continuously back and forth slightly. Air nozzles 78 80 direct air towards the edge 14 from positions inboard thereof to blow the threads 16 into cutting position. A wireclothed brush 82, Fig. 8, having bristles helically mounted thereon, may be provided and is rotated over the edge 14 to brush the threads 16 outwardly. A substantial portion of each shear 38 may be enclosed by a hood 84 connected by a conduit 86 to a suction source. For trimming terry loop fabrics, a mask (88), Fig. 9 (not shown), prevents the pile of the fabric from being sheared. If the fabric is accidentally cut through, a trip (90), Fig. 6 (not shown), normally held in raised position by the fabric, drops through the cut opening and pivots a finger (94) against a microswitch (96) to stop the fabric feed.
Patent GB-1417486-A (GB)
Title: Liquid circulation and gas contacting device
IPC: B01J10/00
Filed: 1973-05-16
Abstract: 1417486 Aerating and circulating liquids IMPERIAL CHEMICAL INDUSTRIES Ltd 3 May 1974 [16 May 1973] 23330/73 Addition to 1353008 Heading B1C [Also in Divisions Cl and C6] Chemical and biochemical reactions involving contacting a liquid and gas, such as the production of aqueous solutions of copper sulphate from copper sulphide-containing mineral ores suspended in aerated aqueous medium, the production of single cell protein by growing micro-organisms upon hydrocarbon or methanolic substrates, or the microbiological production of citric acid, amino acids e.g. lysine, glutamic acid and methionine, enzymes e.g. glucose isomerase and antibiotics e.g. penicillin, are carried out in circulatory apparatus consisting essentially of a riser 1, Fig. 1, a downcomer 5, gas injection spargers 11 and 13, bubble break up devices 16 in the riser and heat exchanger 17. Feed medium containing the elements essential for fermentation enters through line 14 and culture is removed through line 15. Gas bubbles escape from the free surface A-A of the liquid and are vented through line 12. This apparatus and its method of use are broadly described and claimed in the parent Specification 1353008. According to the present Specification, the apparatus is to be at least 20 metres in height e.g. between 40 and 60 metres, the total useful cross-sectional area of the riser is to be greater than, viz. between three and eight times, that of the downcomer, and the circulation of the liquid around the system is to be effected by injecting a gas thereinto in an amount sufficient to impart a mean velocity of at least 15 cms/sec to the liquid in the riser. Between 10% and 100% of the total volume of gas injected into the system may be injected into the liquid in the downcomer at 1 to 5 levels. Typically, the hourly rate of transfer of oxygen into the liquid culture is at least 2 kg. O 2  per cubic metre, and the mean velocity of liquid is between 20 and 80 cm/sec in the riser and between 200 and 500 cms/sec in the downcomer. The apparatus may have 3 to 8 risers and a single downcomer, the cross-sectional area of each riser being the same as that of the downcomer. Figs. 2 to 7 (not shown) depict other constructions of apparatus.
Patent GB-694326-A (GB)
Title: Improvements in or relating to articles made by powder metallurgy methods
Inventor: OLIVER DONALD ARTHUR
IPC: C22C33/02
Filed: 1950-09-23
Abstract: 694,326. Powder metallurgy; welding by pressure. METAL & PLASTIC COMPACTS, Ltd. Dec. 21, 1951 [Sept. 23, 1950], No. 23382/50. Class 83 (iv). In order to reduce the risk of corrosion at a welded joint between two stainless steel members made by powder metallurgy, a powdered carbide-forming material is added to the stainless steel before sintering. Preferably the carbide former comprises between 1 per cent and 1.5 per cent by weight of titanium hydride which forms, during sintering, titanium metal in an active state for combining with chromium carbide to liberate chromium and thus prevent chromium migration away from the area of the joint during the subsequent welding operation. Other carbide formers which may be used are zirconium hydride, zirconium-bearing material or niobium, tantalum and chromium either as such or in the form of ferro-alloys. If a porous body is required, a pore forming material such as ammonium. bicarbonate is added: to the powder mixture. The stainless steel powder may be produced electrolytically as described in Specification 673,204, [Group XXXVI]. For economy the carbide-forming material may be added only at those portions of the body where a welded joint is to be made. Specification 686,129 also is referred to.
Patent GB-445512-A (GB)
Title: Improvements in and relating to grinding or abrading tools
IPC: B24D13/04
Filed: 1935-08-20
Abstract: An abrading or polishing tool consists of a rotary body carrying flexible grinding elements composed of sheets or threads formed from a rubber or other elastic binding material containing uniformly distributed abrasive particles such as silicon carbide, corundum, emery, or glass.  The grinding elements may be made porous by incorporating in the binding material gas-evolving substances such as ammonium carbonate, hydrogen peroxide &c.
Patent GB-1143428-A (GB)
Title: Cyclopentane-1,3-dione derivatives
IPC: C07C45/67
Filed: 1966-05-25
Abstract: 1,143,428. Cyclopentane-1,3-diones; steroids. MERCK & CO. Inc. 25 May, 1966 [27 May, 1965], No. 23388/66. Headings C2C and C2U. The invention comprises cyclopentane-1,3- dione derivatives of the Formula (I) in which R 1  is a C 1 -C 6  alkyl, aryl or aralkyl radical and R 3  is a carbalkoxy, carbaralkoxy, carboxamido, carboxyl or cyano radical. They may be prepared by cyclizing 2-R 1 -3-oxo adipic acid diesters to give compounds of Formula (II) in which R 2  is a C 1 -C 6  alkyl, or aralkyl group and converting the carbalkoxy or carbaralkoxy group, where required, to the group R 3 . The 3-oxo-adipic acid diesters used as starting materials have the formula and are cyclized by the use of a basic condensation agent, e.g. an alkali metal hydride or alkoxide. The compounds in which R 3  is a carbalkoxy or carbaralkoxy group may be saponified with a base to. give compounds in which R 3  is a carboxy group. A carbalkoxy group may be converted to a carbaralkoxy group by ester interchange and a carbaralkoxy group may be converted to a carboxy group by catalytic hydrogenation. The carbalkoxy and carbaralkoxy groups may be converted to a carboxy amido group by treating with ammonia and the carboxyamido group may be converted to a cyano group by treatment with thionyl chloride. The new compounds may be used in the synthesis of steroids. For example, a 2-R 1 -4- (carbalkoxy, carbaralkoxy, carboxamido or cyano) cyclopentane-1,3-dione compound is reacted with a l,2,3,4-tetrahydro-6-(alkoxy or aralkoxy) - 1 - vinyl - 1 - naphthol to give a 3 - (alkoxy or aralkoxy) - 8,14 - seco - 13 - R 1 - 15-(carbalkoxy, carbaralkoxy, carboxamido or cyano) - gona - 1,3,5(10),9(11) - tetraene - 17 - one compound; the latter compound is cyclized by refluxing it in solution in an organic solvent in the presence of p-toluene sulphonic acid to give a 3 - (alkoxy or aralkoxy) - 13 - R 1  - 15 - (carbalkoxy, carbaralkoxy, carboxamido or cyano)- gona - 1,3,5(10),8,14 - pentaene - 17 - one; the #<SP>14</SP> bond is reduced to a single bond by hydrogenation using a Pd on CaCO 3  catalyst and the #<SP>8</SP> bond is reduced to a single bond by treatment with potassium in liquid ammonia, or alternatively both the #<SP>8</SP> and #<SP>14</SP> bonds of the 3-(alkoxy or aralkoxy) - 13 - R 1  - 15 - (carbalkoxy or carbaralkoxy) - gona - 1,3,5(10),8,14 - pentaen- 17-one compounds are reduced in one step by hydrogenation using, e.g., Pd on charcoal as catalyst to provide an 8-iso form of 3-(alkoxy or aralkoxy) - 13 - R 1  - 15 - (carbalkoxy or carbaralkoxy) - gona - 1,3,5(10) - trien - 17 - one. The 15-carboxy compound may be obtained by saponification and may be resolved by combining with a suitable alkaloid base, converting the alkaloid-steroid product into the free acid and free base and separating and recovering the steroid from the alkaloid base. Reference has been directed by the Comptroller to Specification 1,057,116.
Patent GB-406285-A (GB)
Title: Improvements in methods and devices for traffic signalling
IPC: G08G1/02
Filed: 1932-08-20
Abstract: 406,285. Road signals for controlling traffic. JAYNE, J. L. B., 504, Portland Road, Hove, Sussex. Aug. 20, 1932, No. 23395. [Class 118 (ii).] The road pad for a vehicle operated traffic control system has a number of control devices connected in parallel across the width of the mat so that at least one of the devices is operated no matter where the pad is depressed. The various devices may be linked by link bars and two sets of devices may be provided to give directional sense to the pad. As shown in Fig. 5, the pad carries a number of springs 23 which make contact between electric mains 13, 14 and a further number of springs 22 which can connect mains 14, 15. The springs are covered by a flexible cover and a protective grid 28 is placed between the insulating base carrying the contacts and the cover to prevent undue pressure on the springs. The springs may be linked by link bars 35. The set of springs 23 are provided only if a directional sense is required and where such springs are used a relay circuit as shown in Fig. 6 is provided. When a vehicle is travelling in the direction of the arrow, contacts 21, 22 close before contacts 23, 19. Relay 39 operates opening the circuit of relay 38 and closing the circuit to the control apparatus 46. Should contacts 23, 19 be closed first, relay 38 operates to open the circuit of 39, a dashpot 47 being provided to maintain the circuit open for a sufficient time to allow the vehicle to pass over contacts 22. Specification 402,446 is referred to.
Patent GB-719083-A (GB)
Title: Improvements in and relating to weaving looms
IPC: D03D35/00
Filed: 1951-10-08
Abstract: 719,083. Looms. COPPA. F. Oct. 8, 1951 [Sept. 25, 1951], No. 23418/51. Class 142(2) In a loom for weaving ribbons, in which the weft is inserted into the shed by a needle. a bobbin having a supply of selvage thread is situated on the opposite side of the loom to the needle, and is passed through a loop of weft formed by the needle. A weft thread C from a stationary supply is passed through a tensioning device 10 and thence to a guide channel 14 and. through a hole 16 in the weft inserting needle 15. A selvage thread K is wound in a bobbin 66, mounted in a pivot 65 held by a stirrup 64 formed integrally with a thread guide 68, the stirrup being fixed to a toothed segment 42 running in curved guides 40 and meshing with at least one of a pair of pinions 44, 45. Pinions 44, 45 are each integral with a similar pinion which meshes with a toothed segment 48 rocked by means of a cam and lever system. Segment 48 is carried by a bracket 36 attached to the loom frame and terminating in a fork 38 provided with the guides 40 and also supporting the pinions. Pinion 44, 45 are arranged so as to provide an opening between them coinciding with the opening between the arms of fork 38 so that the weft inserter 15 may pass therebetween. The pivot 65 may be flexible, and a screw may be inserted into a threaded orifice so as to deform the walls to adjustably brake the bobbin. Embodiments of the invention are described in which the bobbin follows linear and circular paths. The weft inserter 15 is pivoted on the loom frame and may be actuated by an arm 20 having a slidable sleeve 22 connected to the sley by an arm 28, an arm 26 pivoted on the loom frame also being connected to the sleeve. The arm 26 may be dispensed with and the sleeve 22 guided in a guide way. Alternatively a rack mounted on the sley may mesh with a pinion integral with the weft inserter.
Patent GB-178778-A (GB)
Title: New or improved device for supporting golf club bags
IPC: A63B55/57
Filed: 1921-09-03
Abstract: 178,778. Shaw, F. W. Sept. 3, 1921. Supporting - devices for golf-club carriers. -A detachable device for supporting a golfclub bag comprises two legs a, b loosely connected at the upper ends by a rod or tube c and secured to the coiled ends of a spring clip d adapted to clip over the rim of the bag. The legs are spaced apart by screws e, f, but may be adjusted to a parallel position for stowage, by means of a nut g. In a modification the legs are spread by notched rods, h, i engaging spring - pressed balls h<1>, i<1>.
Patent GB-1529214-A (GB)
Title: Electro-optic light control element
IPC: G03B7/08
Filed: 1975-09-18
Abstract: 1529214 Controlling light NIPPON KOGAKU KK 18 Sept 1975 [18 Sept 1974] 23612/78 Divided out of 1529212 Heading G2F A light control device for use as a photographic shutter-diaphragm (see also Specifications 1529212 and 1529213) comprises a transparent electrode 50, an electro-optic layer 52 and selectively energizable electrodes 44a to f the latter being overlapped so that the whole of the layer 52 can be subjected to a field. As shown, the device includes transparent substrates 21, 42 and transparent insulators 46a to e. Figs. 6 and 8 (not shown) show alternative constructions. The layer 52 may be a liquid crystal, a ceramic or an electrochromic substance.
Patent GB-320457-A (GB)
Title: Improvements in the manufacture and production of organic acids and esters
IPC: C07C51/12
Filed: 1928-08-16
Abstract: 320,457. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Aug. 16, 1928. Grant of Patent revoked. Organic acids and esters are prepared by acting on vaporized aliphatic alcohols with gases containing carbon monoxide in the presence of catalysts not changing their shape under the conditions of working and containing a difficultly reducible oxide of a metal, i.e., one not reduced by hydrogen at 500‹ C., and less than twice the stoichiometrical amount of an inorganic acid, which can be titrated with a caustic alkali solution. The oxides of di- and trivalent metals are particularly suitable for the purpose, among which calcium barium, zinc, cadium, chromium, aluminium, the oxides of the rare earth metals, e.g. cerium, lanthanum and manganese are mentioned. Thus a catalyst consisting of chromium metaphosphate, cerium metaphosphate or mixtures thereof with one another or with metaphosphate of the other metal mentioned above, or of zinc arsenite, cerium phosphotungstate or phosphotungstates or phosphomolybdate of other oxides mentioned above &c. containing about 10 per cent or less of free acid may be used. The catalysts may be deposited on carriers such as kieselguhr, fuller's earth, charcoal or silica gel. The carbon monoxide may be mixed with hydrogen, nitrogen, water vapour &c. at ordinary or increased temperature. In examples, (1) Carbon monoxide containing hydrogen, nitrogen and methanol is passed with heat and pressure over chromium mataphosphate containing 5 per cent free acid to give methyl acetate with free acetic acid but no higher acids. If the chromium metaphosphate is replaced by zinc arsenite acetic acid is obtained also, but on higher acids. (2) Carbon monoxide containing methanol, water vapour and nitrogen over cerium metaphosphate containing 8 to 10 per cent free acid gives an aqueous solution of acetic acid and methanol rich in methyl acetate. (3) Carbon monoxide containing ethyl alcohol, water vapour and nitrogen over a mixture of cerium metaphosphate and aluminium metaphosphate containng 0.5 to 1 per cent of free acid gives propionic acid together with ethyl propionate and unaltered ethyl alcohol, but no substantial amounts of higher acids. Specification 283,989 is referred to.
Patent GB-294194-A (GB)
Title: Improved process and apparatus for the manufacture of cement or treatment of ores in rotary tube kilns
IPC: C04B7/38
Filed: 1927-09-08
Abstract: 294,194. Gensbaur, M. July 20, 1927, [Convention date]. Addition to 292,492. Void [Published under Sect. 91 of the Acts]. Rotary furnaces.-Raw cement powder, either alone or mixed with fuel, is moulded into pieces, bricks or cords and is burnt in a rotary kiln. The kiln preferably has an annular enlargement at the inlet, this enlargement forming a burning pocket in which the material is temporarily retained. As shown, raw cement powder, with or without fuel and moistened or mixed with a binding medium; is fed from a bunker 1 through a conveyer 2 to a press 3. This press discharges the moulded material into a tube 4 which passes to the enlarged inlet 5 of the kiln. If the material is in cord form, it breaks off, or is cut off, when it projects a certain distance from the end of the tube. The process is also applicable for the roasting, burning, agglomerating, fritting, &c. of ones and mixtures.
Patent GB-172371-A (GB)
Title: Improvements in expanding taps
IPC: B23G5/14
Filed: 1920-08-17
Abstract: 172,371. Dommett, C. H. Aug. 17, 1920. Addition to 116,574. Taps.-Relates to collapsable taps as described in the parent Specification and consists in providing a connection, at 12, Fig. 1, of the form shown in Fig. 3, between the core e<6> of the tap and the adjusting-rod 6, so that the core e<6> can be adjusted positively in both directions axially by means of the graduated screw plug r<2>, to set the tap for different diameters.
Patent GB-221646-A (GB)
Title: Improvements in or in connection with the drying and pulverizing of material such ascoal
IPC: B04B5/10
Filed: 1923-09-25
Abstract: 221,646. Atkinson, J. S., Atkinson, C. E., and Powdered Fuel Plant Co., Ltd. Sept. 25, 1923. No Patent granted (Sealing fee not paid). Strainer separators; charging and feeding; driving.-In a combined centrifugal drier and pulverizer, the material to be treated is fed down a duct 23 to a rotary screw conveyer 22 which throws it against a screen 13, which is rotated together with rings 7, 8, 9 at a faster speed than the member 22. The separated water passes between the rings 7, 8, 9 and escapes by a drain 25. The spider 15 carrying the member 22 has arms in the form of fan blades, which draw air from a duct 26 and discharge it against the dried material passing from the conveyer 22 to the pulverizer 6. The differential speed of the members 22, 13 is secured by bevel friction rings 19, 27 of slightly different diameters bearing on a double bevel wheel 29.
Patent GB-651608-A (GB)
Title: Improvements in or relating to polar coordinate attachment
IPC: G01R13/22
Filed: 1948-09-13
Abstract: 651,608. Electric indicating systems. DU MONT LABORATORIES, Inc., A. B. Sept. 13, 1948, No. 24013. Convention date, Oct. 11, 1947. [Class 40 (i)] In a cathode-ray tube polar co-ordinate oscillograph for indicating phenomena in rotating machinery the outputs of a two-phase generator 1 driven by a rotating part of the machinery are fed through resistance-capacitance filters 3, the outputs of which are substantially independent of generator speed and free from harmonics to balanced amplifiers 6 giving push-pull outputs which are modulated at 7 by a signal derived, e.g. from the machinery shaft and amplified at 8. The modulated outputs are applied respectively to the X and Y- plates of the cathode-ray tube 9, and produce a circular trace radially deflected corresponding to the angular position on the machinery shaft at which a given phenomenon is occurring.
Patent GB-263239-A (GB)
Title: Improvements in or relating to artificial silk and like spinning machines
IPC: D01D7/02
Filed: 1925-09-26
Abstract: 263,239. Rushton, J. L. Sept. 26, 1925. Thread guides; spindle apparatus. - In spinning-machines for artificial silk and the like wherein the filament is led into the spinning-box by means of a funnel so mounted that it may be withdrawn from the box and returned thereto substantially in a longitudinal direction, the framework which supports the funnel is articulated and has one side relatively stationary and the other sides arranged to move the funnel to and from the operative position so that, in its fully-withdrawn position, it is moved clear transversely of the spinning-box. The framework comprises a stationary bracket 20 mounted on the traverse rail 12, and in the arrangement shown, connected by parallel links 21, 23 with a member 17 which always remains vertical and carries the funnel 14. The arc marked on the Figure shows the path of the funnel as it is withdrawn. The pivot studs of the framework are provided with rubber washers to provide the necessary friction to retain the parts in any position, and a stop 36 is provided to determine the operative position. The spinning-box is lined with ebonite or the like and the lid is retained in position by a spring 102. The funnel need not be maintained vertical in its withdrawn position and parallel linkage need not be used. The Provisional Specification states that cam and lever mechanism may be used.