baber/WOPTO huggingface dataset:
Patent GB-267046-A (GB)
Title: Improvements in and relating to looper thread controlling mechanism for sewing machines
IPC: D05B51/00
Filed: 1926-11-18
Abstract: 267,046. Armstrong, J. J. V., (Union Special Machine Co.). Nov. 18, 1926. Chain stitching and double loop stitching; feed, regulating; feed by dogs.-The amount of thread pulled off for the under thread used by threaded loopers is varied by automatically adjusting the pull-off device in accordance with the variation of the feed stroke. The arrangement is described as applied to a two-needle feedoff-the-arm machine comprising a looper shaft 3 and a feed-dog 5 carried by a feed-arm 7. A jaw 8 at the rear of the feed-bar is guided on a pin 9 carried by a rocker 10 on which is a bracket 11 having a slot in which is adjustable a link 12 pivoted at 14 to the feed-bar, to which it communicates the feeding movement. The rising and fallinging movements of the feed-bar are effected by an eccentric 16 on the looper shaft. The looper threads are led through thread-guides 19, 20 in a bracket 21 carried by a sleeve 38 sliding freely on the looper shaft. A pull-off cam 26 is secured to an arm 27 carried by a sleeve 28 freely mounted on the looper shaft but held so as to oscillate therewith bv a bracket secured on the shaft and having jaws 26 which engage a lug 32 on the sleeve. The sleeve 28 is held between collars 33, 34 which are engaged by a pin 36 on the feed-bar so that the pull-off cam receives the endwise movements of the feed-bar and the oscillatory movements of the looper-shaft. The sleeve 38 which carries the guide-eyes has a recess in which engages a block 40. carried by an arm 39' depending from the link 12, so that when the link 12 is shifted to vary the feed-stroke the position of the guide-eyes relatively to the pull-off is shifted and the amount of thread pulled off varied accordingly. The sleeve 38 and the thread eyes are held against oscillatory movement by a lug engaging a fixed guide 69. From the pull-off device the threads pass through a thread-nipper comprising a flexible member carried bv a bracket on the work arm and a plate 51 carried by a sleeve 48 mounted on the looper-shaft so as to move endwise but not to oscillate therewith. The thread then passes through a thread-guide 52 formed in a bracket 53 carried by the sleeve 48. The bracket 53, Fig. 13, is of U-shape and has a further guide opening 59 and guide fingers 62 63. A take-up cam 67 carried by a sleeve 49, fast on the shaft, co-operates with the guides 52, 59, this cam being of the form shown in Fig. 17 and constructed to keep the looper thread loose except at the time when the needles are entering the looper thread triangle.
Patent GB-603880-A (GB)
Title: Improvements in coloured cellulose ester and ether materials
IPC: C09B1/26
Filed: 1945-11-02
Abstract: Cellulose ester or ether materials are coloured by applying thereto a 1.4-diamino-anthraquinone-2-carboxymethylamide containing an aryl substituent of the benzene series or a hydroaryl substituent of the hydrobenzene series in the 1- or 4-amino group, the other amino group being unsubstituted or carrying a single alkyl or hydroxyalkyl substituent, e.g. 1-amino- or b -hydroxyethylamino or b -hydroxypropylamino-4-phenylamino or anisidinoanthraquinone-2-carboxymono- or dimethylamide.  In examples, cellulose acetate is dyed blue or green with aqueous dispersions of the following substances: (1) 1-hydroxyethylamino-4-phenyl-amino-anthraquinone-2-carboxymethyl amide; (2) 1-amino-4-phenylamino-anthraquinone-2-carboxymethylamide; (3) 1-amino-4 - p - methoxyphenylamino - anthraquinone - 2 - carboxymethylamide; (4) 1 - amino - 4 - phenylamino - anthraquinone - 2 - carboxydimethylamide; (5) 1-amino-4-cyclohexylamino - anthraquinone - 2 - carboxydimethylamide.  The dyes may be used in the form of preparations in powder, paste, or other form together with dispersing agents and/or protective colloids.  Other cellulose derivatives specified are the propionate, butyrate, acetatepropionate, acetate-butyrate, and ethyl and benzyl celluloses. The anthraquinone derivatives of the type specified above may be prepared by (1) reacting the corresponding bodies containing a halogen atom in 1- or 4- position with an aromatic or hydroaromatic amine, e.g. aniline, o-, m, or p-anisidene, p-toluidine, m-toluidine, cyclohexylamine, or a nuclear methylcyclohexylamine, or with ammonia or an aliphatic amine, e.g. methylamine, ethanolamine, b -hydroxypropylamine or b -cyanoethylamine, according to the nature of the substituent other than halogen in the 4- or 1- position; (2) reacting on the corresponding body having a carboxylic halide or ester group in place of the carboxymethylamide group with mono- or dimethylamine; (3) reacting the corresponding body containing a nitro, alkoxy, or aryloxy group in 1- or 4- position with ammonia or an amine, the Provisional Specification referring to the reduction of the nitro group.
Patent GB-342648-A (GB)
Title: Improvements in or relating to the manufacture of tubes of highly refractory material
IPC: C25D1/02
Filed: 1929-09-26
Abstract: 342,648. Coating metals. DICKER, S. G. S., 20, Holborn, London.-(Naamlooze Vennootschap Philips' Gloeilampenfabrieken; 6, Emmasingel, Eindhoven, Holland.] Sept. 26, 1929, No. 29212. [Class 82 (ii).] Tungsten is deposited on a molybdenum wire by heating the wire to 1700‹ C. for some minutes in tungsten hexachloride vapour. The wire may then be drawn by hammering or by dies. The molybdenum is then dissolved out without affecting the tungsten by a mixture of 10 volumes nitric acid (s.g. 1.41), 6 volumes sulphuric acid (s.g. 1À84) and 4 volumes water. The wires to be coated are preferably arranged in the form of a cylindrical cage closed by plates at both ends as shown in Fig. 3 or alternatively in the form of a helix. The thickness of the deposit diminishes to zero towards the inside of the cylinder or helix so as to exhibit a slot as shown in section in Fig. 5; this facilitates solution of the core. Solution may alternatively be facilitated by the use of a hollow core. Tubes of very small thickness e.g. 500 micron or even 20 micron may be made by the process. The specific gravity of the deposited tungsten is stated to be over 19À0. According to the Provisional Specification, the invention is also applicable to the manufacture of tubes of refractory metals other than tungsten, and cores of material other than molybdenum may be employed.
Patent GB-1275452-A (GB)
Title: Improvements in and relating to photosensitive semiconductors
Inventor: KURTSYN VADIM MIKHAILOVICH
IPC: H01L29/74
Filed: 1969-06-10
Abstract: 1275452 Semi-conductor device VSESOJUZNY ELEKTROTEKHNICHESKY INSTITUT IM V I LENINA 10 June 1969 [10 June 1968] 29318/69 Heading H1K In a photosensitive semi-conductor device having at least four regions, a region of one conductivity is illuminated and below this region is provided a region of opposite conductivity type having a portion of high lateral resistance. In the embodiment shown in Fig. 1, the portion 4 has a lower impurity concentration than the rest of the region 2 and is formed by selective diffusion. An electrode 7 is provided on region 3. In another embodiment (Fig. 2, not shown) a C- groove (8) is cut through region 3 into region 2. An alternative embodiment is to provide a stepped PN junction between regions 2 and 3 (Fig. 5, not shown). The junction between regions 1 and 2 may also be stepped. In another modification (Fig. 4, not shown) the groove (8) is completely circular and separates region 3 into two portions one portion being illuminated and the other masked by an electrode. The illuminated portion is connected to the electrode by a variable resistor (9) or a photoresistor.
Patent GB-714490-A (GB)
Title: Method and apparatus for hardening serrated articles
Inventor: JONES DAVID GRIFFITHS
IPC: C21D9/32
Filed: 1950-11-30
Abstract: 714,490. Surface hardening. DELAPENA & SON. Ltd. Nov. 26, 1951 [Nov. 30, 1950], No. 29327/50. Class 72 [Also in Group XI] In a method of hardening serrated articles by high frequency electric induction heating and quenching, the induction coil has a core which is disposed normally to the pitch line, or to the tangent to the pitch are should the serrated surface be curved, with one end of the core projecting into a tooth space and being profiled to approximately the same form as the space so that the flux concentration is substantially uniform over the tooth flanks and trough. As shown, a spur gear wheel is hardened by heaters, with cores 11, which are profiled so as to leave a gap of approximately 1 mm. between cores and wheel. Pipes 13 attached to the cores carry quenching liquid, so that the spaces 10a are hardened as the cores move along the serrations. If the tips also of the teeth are to be hardened, the cores are provided with the outline indicated at 18. Splash guards may be fitted to the cores on their edges adjoining the quenching pipes, each in the form of a narrow extension reducing the width of the gap. The tooth gaps may be treated one at a time using a single core. or a group of cores may be used. The cores may be built up from powdered magnetic material or of steel laminae as described in Specification 714.488, [Group XI]:
Patent GB-388855-A (GB)
Title: A new or improved method of securing the wire bars of birdcages and similar structures
IPC: A01K31/06
Filed: 1931-10-23
Abstract: 388,855. Bird cages. HYGIENIC WIRE WORKS, Ltd. and WEBSTER, E. G., 42, Haymerle Road, London. Oct. 23, 1931, No. 29443. [Class 5 (ii).] In a bird cage or other similar structure of the " sunrise type, in which wire bars B radiate from two plates A<1>, A<2> between which said bars are secured, a series of exteriorly disposed, pocket-ended recesses A<3>, A<4> are formed in the borders of the plates A<1>, A<2>, such recesses forming opposed depressions in the two plates, which depressions contact and are secured together ; the parts A<5>, A<6> outstanding between the recesses form opposed corrugations adapted to receive the wire bars B between them, and the central parts A<7>, A<8> of the plates within said borders are spaced apart to receive the inner ends of the wire bars B. The bars B are secured to the plate A<2> by soldering, and at their opposite ends pass through holes in the interior face of the member C.
Patent GB-533463-A (GB)
Title: Apparatus for re-expanding compressed cellulose wadding
IPC: A61F13/15
Filed: 1939-11-07
Abstract: 533,463. Wadding. BURGESS, A. F. (Paper Patents Co.). Nov. 7, 1939, No. 29561. [Class 142 (iv)] Cellulose wadding compressed in the plane of the crÛped tissues and perpendicularly to the crÛping of such tissues is re-expanded by a machine which delivers it faster than it is supplied from the roll R. The roll R is enclosed in the loop 31<SP>1</SP> of a belt 31 driven from a motor 32. The upper adjustable belt 53 and the lower belt 56 on the draw-off side are driven by the same motor 32 but faster than the belt 31 through a variable speed gear 74. The lower belt 56 is longer than the upper belt 53 and may serve as a delivery table, or the re-expanded wadding (or the separate plies of the same) may be rewound on rolls R<SP>1</SP> counterbalanced by cam mechanism 144 and weights 147.
Patent GB-1479801-A (GB)
Title: Liquid phase chromatography analysis
IPC: G01N30/50
Filed: 1975-07-15
Abstract: 1479801 Liquid chromatography SOC NATIONALE DES PETROLES D'AQUITAINE 15 July 1975 [18 July 1974] 29615/75 Heading B1H In a method of analysis by liquid-phase chromatography with a pre-selected elutiongradient programme, two chromatography columns, of at least approximately similar porous volume and permeability, are each supplied with a mixture of two solvents, in such a way that the concentration of one solvent at the inlet to the first column is the same at any point in time as the concentration of the other solvent at the inlet to the second column, the product to be analysed being injected into the inlet of one of the two columns, and the fluids leaving both columns being added together to form a mixture, which is analysed in a concentration detector. The porous volume and permeability of one of the columns may be adjustable to compensate for differences between the columns.
Patent GB-971490-A (GB)
Title: Improvements in or relating to steering mechanisms for automobile vehicles
Inventor: CARTER VICTOR LEONARD
IPC: B62D3/12
Filed: 1961-08-17
Abstract: 971,490. Rack and pinion steering mechanisms. ALFORD & ALDER (ENGINEERS) Ltd. Aug. 10, 1962 [Aug. 17, 1961], No. 29767/61. Heading F2Q. [Also in Division B7] In a rack-and-pinion steering mechanism for automobiles, wherein arms 40 secured to the rack 16 project through a slot in the rack casing 13 and are connected by links 42 to the hub steering drop arms, the rack 16 is maintained in mesh with, and restrained axially of, the pinion 24 by a spring-loaded half-bearing 32 sliding in a bore of the rack-and-pinion housing portion 12 of the casing, and a taper-sectioned key 35 sliding in the half-bearing is adjustably spring- loaded to engage a taper-sectioned groove 30 in the rack to prevent rack rotation, and mesh deviation, by the links 42 due to rise and fall of the road wheels. Due to its taper the key takes up wear by deeper engagement with the groove. The key is formed on a plug 34 which is loaded by a spring 36 reacting on a screwed plug 37 having a lock-nut 38. The rack is supported remote from the housing portion 12 by a bush 29 in the casing 13. The arms 40, supporting the links 42 by " Silentbloc " (Trade Mark) bushes 41, are screwed into the rack, connected by a plate 45, and locked by the bent ends of a plate 46. The casing 13 is closed by end closures 14, 15 and bellows 47 connected by a sliding sleeve 49. Specification 766,141 is referred to.
Patent GB-267192-A (GB)
Title: Improvements in and relating to press-tools for punching and stamping sheet-metal and the like
IPC: B21D35/00
Filed: 1925-11-26
Abstract: 267,192. Humphris, F. Nov. 26, 1925. Nails. - A longitudinally folded or corrugated nail, Fig. 32, is made from sheet metal by dies which first punch a blank, the upper die and cooperating yielding ejectors then transferring the blank to a lower die whereon it is corrugated. On the upper die rising, the yielding ejectors rise and discharge the completed nail into a shoot located beside the lower die, without passing the nail back through the sheet. Several nails may be produced at one stroke of the dies. The dies may be built in sections and may be assembled as a sub-press mechanism.
Patent GB-868714-A (GB)
Title: An improved carrier drive mechanism for straight bar knitting machines
Inventor: LADBROOKE NEVILLE CUTHBERT
IPC: D04B15/64
Filed: 1956-10-01
Abstract: 868,714. Knitting-machines. COTTON Ltd., WILLIAM. Sept. 24, 1957 [Oct. 1, 1956; May 29, 1957], Nos. 29844/56 and 16998/57. Class 74 (2). The carrier bars 16 of a straight-bar machine are driven selectively from a reciprocating rack 24 on a slide 17, driven from the usual draw cam mechanism, by epicyclic gear trains 31. Each gear train is mounted on a shaft 25 which is geared to a corresponding carrier bar and which also freely supports a gear 30 in engagement with the rack 24. The gear 30 is coupled to a sun-gear of the train which comprises two series of planet gears coupled by a ring gear and which drive a further sun-gear coupled to the shaft 25. The two series of planet gears are carried by separate end discs or cages which, when a particular carrier bar is to be driven, are braked by a band-brake or by shoe-brakes to prevent rotation of the cages and thereby effect transmission of the drive through the epicyclic gear train to the carrier bar. When the carrier bars engage their stops at the end of each traverse the brakes permit frictional slippage to occur between them and the cages.
Patent GB-1262758-A (GB)
Title: Method of plating semiconductor surface
Inventor: MIDDLEHOEK SIMON
IPC: H01L21/316
Filed: 1969-06-13
Abstract: 1,262,758. Field effect transistors. INTERNATIONAL BUSINESS MACHINES CORP. 13 June, 1969 [28 June, 1968], No. 29996/69. Heading H1K. [Also in Division C7] A gold electrode is vapour deposited through an aperture in a SiO 2  layer on a drain area 3 of a silicon FET device through a mask of smaller area than the drain area, and the device heated at, e.g. 500 C. to diffuse the gold over the whole drain area. A layer of Cr may be provided on each side of the gold, and the whole covered with sputtered SiO 2 . A Ni layer may be provided between the Cr and the Au.
Patent GB-886998-A (GB)
Title: Suspension assembly for the wheels of a motor vehicle
IPC: B60G3/24
Filed: 1960-08-31
Abstract: 886,998. Spring suspensions. GENERAL MOTORS CORPORATION. Aug. 31, 1960 [Sept. 16, 1959], No. 29998/60. Class 108(2). A motor vehicle has a pair of generally triangular wheel control arms 48 each pivoted about one end portion of a lateral frame member 4 and extending obliquely outwards rearwardly of the frame member, and a drive mechanism 22 carried by the frame member to drive a pair of pivotable axles 32, 34 extending outwards through apertures in the control arms. A pivot shaft 64 is bolted to the member 2 and connected to the bifurcated ends 56 and 58 on the arm 48 by resilient bushings 60 and 62. Thin packs, such as 66, enable "toe-in" to be adjusted. Each arm 48 is formed by welding together abutting flanges, such as 82 and 84, of vertically registered sheet metal stampings 94 and 96. Coil springs 108 and 110 are arranged concentrically with hydraulic shock absorbers, such as 122.
Patent GB-851495-A (GB)
Title: Improvements in the production of esters of phosphoric acid and thionophosphoric acid
IPC: C07F9/165
Filed: 1957-09-25
Abstract: The invention comprises compounds of formula: <FORM:0851495/IV(b)/1> wherein A is hydroxyl, alkoxy or Y; B is hydroxyl, alkoxy or Y ; D is hydrogen, hydroxyl, carbalkoxy, alkoxy or halogen and wherein A and B may not simultaneously be alkoxy, and wherein Y is a radical of a dialkylphosphoric or -thionophosphoric acid of formula: <FORM:0851495/IV(b)/2> wherein R1 and R2 are C1-4 alkyl and X is oxygen or sulphur.  They may be prepared by reacting a phosphorus halide of formula: <FORM:0851495/IV(b)/3> with a compound of formula: <FORM:0851495/IV(b)/4> or <FORM:0851495/IV(b)/5> wherein R3 is hydrogen, halogen, hydroxyl, alkoxy or carbalkoxy and R4 is hydrogen or alkyl, especially C1-6 alkyl at a temperature from about 15 DEG to about 120 DEG  C. A hydrogen halide binding agent is preferably present and inert solvents may be used.  The products have insecticidal activity.
Patent GB-484579-A (GB)
Title: Improvements in or relating to lubricants
Filed: 1936-11-05
Abstract: Lubricants having a low coefficient of friction and causing low surface wear consist of at least 1 per cent of organic compounds not containing metallic atoms and consisting of at least three substituted or unsubstituted rings interconnected directly or indirectly, dissolved or suspended in organic liquid or mixed with known lubricants.  The rings are preferably interconnected by aliphatic radicles or non-metallic inorganic atoms or groups of atoms.  Compounds containing atoms, groups of atoms or radicles capable of adhering physically or chemically to the metal surface to be lubricated, such as S, P, halogen, OH, COOH, CHO, CH3, CH, NH, NC and NO2, are preferred.  In examples, wear is minimized by using a solution of 10 per cent of di-benzylidene benzidine in methyl cyclohexanol oxalate, or by adding sextol phthalate to a lubricating oil, or by using a solution of 5 per cent of triphenyl carbinol or tricresyl phosphate.  Suitable solvents are methyl cyclohexanol oxalate and dimethyl cyclohexanol adipate, Examples of the three-ring added compounds are, diphenyl benene, bisdiphenyl, dibenzilidene-benzidine, sextol phthalate, diphenylquinone, diphenyltetramethylene dibenzyl-benzene truxillic acid, 2, 3-diphenyl-3 - oxy - 5 - keto - cyclopentene, 1, 2 - diphenyl-pentamethylene, 1, 2-di-phenyl-4-keto - cyclopentene, polymers of cyclopentadiene, 1, 3-diphenyl-2, 4, 5-tri-keto-pentamethylene, 1, 2-diphenyl-1, 2 - dioxypentamethylene, 1, 2-diphenyl-pentamethylene carboxylic acid, dibenzoyl benzene, benzyl diphenyl, phenyl benzophenone, dibenzoyl diphenyl, phenyl-o-benzoyl benzoic acid, bis-(diphenyl)-methane, diphenyl benzophenone and dibenzoyl benzidene.  Specifications 346,079 (as open to inspection under Sect. 91 of the Acts) and 419,820 are referred to.
Patent GB-474411-A (GB)
Title: Improvements in or relating to chairs or the like
IPC: A47C15/00
Filed: 1936-11-06
Abstract: 474,411. Self - levelling apparatus. RAMOND, A. B. Nov. 6, 1936, No. 30220. [Class 113 (i)] [Also in Group XIV] In self-levelling chairs or beds of the kind comprising a base frame, an intermediate frame suspended in the base frame, and a chair or bed pivoted in the intermediate frame, with an adjustable counterweight suspended from the chair &c., the intermediate frame 17, Figs. 1 and 3, is of cruciform construction, and has diagonally opposite upstanding posts, one pair of posts 13, 16 being pivotally suspended in the base frame, and the chair being suspended between the other posts 14, 15. The posts 13, 16 are pivoted to legs 7, 7<1> on the base frame by bolts 20. The chain is mounted on a diagonally disposed horizontal frame 34 to the ends of which are secured tubular extensible posts 24, 25, the lower parts of which consist of rods 29, Fig. 6, supported and constrained by opposed springs 31, 32 housed in the tubular upper parts. The frame 34 includes angular members 35, 36, Fig. 8, and the seat is hinged at 37, Fig. 3, to this frame, and supported by springs 39. The counterweight 40 is suspended by means of a threaded bar 42 from a block 41, Fig. 8, mounted for adjustment laterally and longitudinally in the frame 34 by means of threaded rods 47, 48 operated from hand wheels through bevel gears. Vertical adjustment of the weight is effected by rotation of the rod 42 by means of bevel gearing. Clamps 63, Figs. 1 and 3, comprising U-shaped members, may be provided on the posts 13 and 25 to secure these parts temporarily to the posts 7 and 15 respectively.