baber/WOPTO huggingface dataset:
Patent GB-891907-A (GB)
Title: Process for dyeing or printing fibrous materials or foils of polyacrylonitrile or copolymers of acrylonitrile
IPC: D06P3/76
Filed: 1959-05-25
Abstract: Polyacrylonitrile fibres or foils are dyed or printed with an aqueous solution or dispersion of a cationic dyestuff which is free from sulphonic acid groups and has the formula <FORM:0891907/IV (c)/1> wherein R represents a hydrogen atom or an alkyl, aryl, alkoxy, aryloxy, amino, monoalkylamino, dialkylamino, monoarylamino, diarylamino, alkarylamino or a carboxylic acid or carboxylic acid ester group, or a halogen atom, or a nitro group or other negative substituent, X represents an oxygen or sulphur atom, on an imino, <FORM:0891907/IV (c)/2> Y represents the anion of an organic or inorganic acid and A, if present, is a condensed benzene ring, at a temperature of 100 DEG C.-120 DEG C.  Dyeing is effected in a neutral or weakly acid medium at 100 DEG C. or above.  Prints are steamed at 100 DEG C. or above. The dyebath or printing paste may also contain non-ionic surface-active agents.  Insoluble dyestuffs may be dispersed in the aqueous dyebath or added thereto in solution in, for example, dimethylformamide, methylacetamide or dimethyl-sulphoxide. Examples are given.
Patent GB-639009-A (GB)
Title: Improved anchoring device for coal and other mines
IPC: E21C29/02
Filed: 1947-07-07
Abstract: 639,009. Mining-machines. MAVOR & COULSON, Ltd. (Vogel, W.). July 7, 1947, No. 17824. [Class 68(i)] In a machine for mining coal and other minerals, consisting of a transportable vehicle with wedges for splitting mineral from a seam, the vehicle being advanced stepwise by a hydraulic cylinder-and-ram propulsion unit working against an anchoring device, the latter comprises slidable lower and upper shoes to engage the mine floor and roof respectively, the shoes being pivotally connected to lower and upper components which are interconnected by a pivoted joint and which are angularly related to act as toggle links, means to widen the angular relation of the components, and a pivoted connection in the proximity of the pivotal joint between the ram and the components. As shown, a coal-mining machine comprising wedges 10, 21 ... 24, adapted to be advanced into the coal by a hydraulic ram 11, 12 of which the plunger 12 is loosely connected to the joint pin 14 of a toggle anchor comprising a lower member 26 pivoted to a floor-engaging shoe 27 and pivoted between two upper screw-extensible members 25 which are pivoted to a roofengaging shoe 28. Range of relative angular movement of members 25, 26, may be limited by forked struts 31 pivoted to extensions 32 of the shoe 27 and each embracing one of the members 25, adjustable cross-pins 35 forming stops. Springs 36, 38, may be provided to urge the members 25, 26, apart. Between advances of the machine, the anchoring device is advanced by the plunger 12. The Provisional Specification states also that a single member 25, or more than two such members, may be used, that the members 25 may be extensible hydraulically, and that the springs 36, 38, may be replaced by fluid pressure means.
Patent GB-799755-A (GB)
Title: Improvements in and relating to the manufacture of acrylic nitrile
Filed: 1956-06-08
Abstract: Acrylonitrile is manufactured by catalytic reaction of hydrocyanic acid on acetylene and the mixture of gases evolved by the said reaction is contacted with an aqueous solution of chlorine in which chlorine is present in a quantity equivalent to, or only slightly greater than, the amount necessary to chlorinate the impurities present, separating out the said impurities by decantation in the form of chlorinated products insoluble in water, treating the purified gases to separate out acrylonitrile and re-cycling the remaining purified gases.  Alternatively the mixture of gases evolved by the reaction may first be treated to separate out acrylonitrile, and the remaining gases may be purified by contacting with an aqueous solution of chlorine in which chlorine is present in a quantity equivalent to, or only slightly greater than, the amount necessary to chlorinate said impurities, separating out the impurities by decantation in the form of insoluble chlorinated products and recycling the remaining gases.  The contacting with chlorine solution may be effected by washing the gases in a washing column with chlorine water, preferably in parallel flow, or by washing the gases with water and simultaneously injecting chlorine into the washing tower to form the chlorine solution in situ.  The quantity of chlorine introduced is preferably such that it corresponds in stoichiometric quantity to the sum of the quantities necessary for the chlorination of each type of impurity the quantities being determined by measuring the residual content of one of the impurities, e.g. mono-vinyl acetylene, after treatment.  The chlorination may be effected at 20 DEG  to 50 DEG  C. or at the temperature of the gaseous mixture passing out of the reaction chamber, i.e. in the vicinity of 80 DEG  C.  The residual chlorine water from this step may be recycled in part in the column.  The separation of the acrylonitrile may be effected by washing with water followed by fractionation of the aqueous solution.  The chlorination column and the column for extracting acrylonitrile may be combined in a single unit by introducing water and chlorine at the top and the gases at the bottom of the column.  Suitable forms of apparatus are described and examples of the chlorination step are given.
Patent GB-123543-A (GB)
Title: Improvements in Automobile Bodies.
Inventor: LEDWINKA JOSEPH
IPC: B62D31/00
Filed: 1917-12-03
Abstract: 123,543. Ledwinka, J. Dec. 3, 1917. Mud-guards for automobiles are formed of metal stampings 38 having downwardly bent flanges 39, which are secured to seatings in the side panels 20 of the body, for example by bolts 41.
Patent GB-957943-A (GB)
Title: Improvements in and relating to electric circuit arrangements
Inventor: LAW HILTON
IPC: H02H3/34
Filed: 1959-05-27
Abstract: 957,943. Protective cut-out arrange ments. ENGLISH ELECTRIC CO Ltd. May 27, 1960 [May 27, 1959] No. 18043/59. Heading H2K. An unbalance protective arrange ment for a polyphase system of con ductors 12 ... 14, has for each con ductor a circuit element comprising a resistor 23, 24 or 25 connected in series with the D.C. output circuit o: a full-wave rectifier 20, 21 or 22 whose A.C. input circuit is connectec to a current transformer 17, 18 or 19 the circuit elements being connectec in a closed circuit 26 in which the output E.M.F.'s of the rectifiers act in the same sense around the circuit Circuit means, e.g. a bridge rectifies 40 and the control winding 41a of a magnetic amplifier 41, are connected in parallel with the respective circuit elements and effect the operation of indicating or control means, e.g. a relay 42, in response to " spill " currents from the closed circuit due to current unbalance in the conductors. Substantially constant " standing " currents may be applied to the resistors 23 ... 25 by means of further rectifiers 27 ... 29 supplied by auxiliary transformers 30... 32 which are connected in series with an inductor 33 to an auxiliary A.C. source 34.
Patent GB-1125165-A (GB)
Title: Bright silver electroplating bath
IPC: C25D3/46
Filed: 1966-04-26
Abstract: 1,125,165. Bright cyanide silver electroplating baths. I. GELDBACH, A. GELDBACH, U. GELDBACH and S. GELDBACH. April 26, 1966 [Jan. 5, 1966], No. 18106/66. Heading C7B. A cyanide silver electro-plating bath includes as a brightener a compound NH 2  - #C - NH - NH - #C - SMe or NH 2  - NH - #C - NH - #C - SMe where S S S Me is a monovalent metal. The bath may also include a condensation product of naphthalene sulphonic acids with formaldehyde or a sulphonated fatty oil, e. g. turkey red oil, in saponified form. Typically the bath is operated at 22 to 30 C. at current densities of 0À1 to 6 amps / sq.dm., agitation by electrode movement being employed at current densities of 1.5 amp / sq.dm. or above, decrease in the operating temperature reducing both the upper and lower current density limits. The bright deposits may be japanned and baked without loss of brilliance.
Patent GB-741422-A (GB)
Title: Improvements in or relating to the extraction of oils and fats from materials containing them
Inventor: CHAYEN ISRAEL HARRIS
IPC: C11B1/00
Filed: 1952-07-17
Abstract: The process of the parent Specification, according to which fat is extracted from bones by feeding them with a liquid continuously to a container wherein they are subjected to repeated intense impacts delivered through the medium of the liquid to rupture the fat containing cells without reducing the bones to cell size or less, to give a resulting mixture of fat, solid residues and liquid, is applied to material of vegetable origin.  The material is preferably passed with the liquid through a highspeed hammer mill, and the free fat is then removed from the mixture, preferably by a two-stage separation wherein the solid is separated in the first stage and the fat from the mixture of fat and liquid in the second stage.  The separations may be effected centrifugally.  In the second stage it may be necessary to heat the mixture to a temperature above the melting point of the fat.  The speed of rotation of the mill may be from 2,000 to 5,000 r.p.m. for an 8-inch diameter mill, the quantity of liquid being preferably at least three times the weight of the vegetable material.  The mixture is subjected to the impacts for a period of not more than 10 seconds.  The liquid may be water, preferably at room temperature.  The materials specified in examples comprise coconut, palm kernels and fruits, olives and tung seeds. Specification 722,311 is referred to.
Patent GB-818765-A (GB)
Title: Machine for filling and welding vials
IPC: B65B3/00
Filed: 1957-06-07
Abstract: 818,765. Sealing glass ampoules. CIONI, M. June 7, 1957 [June 14, 1956], No. 18144/57. Class 56. [Also in Group XVII] Relates to machines for filling glass vials (see Group XVII) and then sealing them by fusing the necks (see below). The vials 5 are carried on open-bottomed holders 4b mounted on an endless conveyer or chain 4 guided round a plate 2 and driven by a sprocket 3, the vial bottoms sliding on a table 1. The conveyer is driven by Geneva mechanism 7, 6 so that each step moves it the distance of three vials. The sealing &c. mechanism is fitted to a superstructure 29 carried on vertical rods 30 slidable in table 1 and formed as rack bars so that, by turning handwheel 34a, the height of the superstructure can be adjusted through shafts 34, 32 and gears 33 meshing with the racks. A motor in the table drives a main cam-shaft 41 in superstructure 29 and the drive to the Geneva mechanism is from the superstructure through a shaft 8 having a slidable driving connection in the superstructure. Three flame jets 52 are lowered by the cam shaft 41 to play on the necks of a set of three of the filled vials which are rotated about their axes by rollers 20 driven by a motor 13 beneath table 1, the rollers being set to bias the vials downwards on to the table and being moved to and from the vials at the appropriate times by a cam 26 driven by shaft 8. Simultaneously cam shaft 41 causes three pairs of tongs 62 to grip the tops of the vial necks to retain the scrap glass when sealing has been effected, the tongs being then raised. Cam shaft 41 then projects a tray 82 beneath the tongs which now release the scrap glass into the tray. The parts are next restored to their original positions and three new vials are fed to the sealing jets by the conveyer. Means are provided for altering the time for which the jets play on the vial necks.
Patent GB-777782-A (GB)
Title: Purification of terephthalic acid
Inventor: STIMPSON JAMES WALTER
IPC: C07C51/487
Filed: 1955-06-24
Abstract: Terephthalic acid is purified by heating the crude acid to a temperature not below 350 DEG  C., e.g. for a period up to 30 minutes, either in an open or pressure vessel.  The acid can be freed from many of the decomposition products of the impurities by dissolving the residue in alkali and recovering the terephthalic acid by precipitation with a mineral acid.  A higher degree of purity can be obtained by treating the solution in alkali with 3-5 per cent of active carbon, one or more times, before precipitating the pure terephthalic acid with mineral acid.
Patent GB-380840-A (GB)
Title: Improvements relating to feed mechanism of slicing machines
IPC: B26D7/01
Filed: 1931-06-24
Abstract: 380,840. Slicing-machines. SMITH, G. A., Ingledene, Rockingham Road, Kettering, and WILLIAMS, F. W. Roseleigh Villa, Union Street, Desborough, both in Northamptonshire. June 24, 1931, No. 18289. Class 28 (ii).] Means for adjusting the slice-thickness comprises a knob a having a graduated scale co-operating with a pointer b, secured to a worm d journalled in the underside of the reciprocating carriage c, a nut f threaded thereon and having a lateral extension projecting through a slot in the side wall of the carriage c and carrying a plate f<2> which is shaped to form a stop for a projection g<l> on the pawl or like one-way clutch mounted on the end of the feed screw h. The stop f<2>, by determining the initial angular position of the pawl lever g, determines the angular feed movement imparted thereto by its contact, at the end of the return stroke of the carriage c, with a fixed stop l<1>. The pawl lever g is returned into contact with the stop f<2> by a torsion spring through which the end of the feed screw is threaded. The feed nut j is carried by a spindle k which is accommodated in a slot c<1> in the edge of the carriage c. The spindle k is mounted in a boss i<1> on the feed table, and a handle k<1> carried by the boss effects the lifting of the feed nut. A spring d<3> at the end of the worm d takes up play.
Patent GB-690015-A (GB)
Title: Improvements in fishing reels
IPC: A01K89/0155
Filed: 1951-08-02
Abstract: 690,015. Fishing-reels. RONNBERG, B. Aug. 2, 1951, No. 18342/51. Class 48. In a fishing reel in which the line as fed out from the spool runs over an auxiliary roller rotatably mounted in the frame supporting the spool and driven by the spool, during the cast, with a peripheral velocity greater than that of the spool, the diameter of the latter is preferably greater than that of the roller, and said roller is driven by the spool by means of a rope drive. The line R, Fig. 1, runs from the spool 1 between the auxiliary roller 4 and an idle roller 7 held against the roller 4 by its resilient mounting 19, the roller 4 being driven by a rope 18 passing over a sheave 15 mounted on the shaft 2 of the spool 1 and over a sheave 17 formed integrally with the roller 4. By driving the roller 4 at a peripheral velocity slightly greater than that of the spool the line R is held during a cast slightly tensioned between the spool 1 and the rollers 4, 6. The sheave 15 is driven through a ratchet 20 on the shaft 2 which engages two spring wire pawls 21 on the sheave 15 during a cast, but which moves past the latter without operating the rope drive during reeling. The spool 1 may be provided with a resilient brake element 27 actuated by hand through an opening in the reel casing 8. Rotation of the shaft 2 and the spool 1 is prevented when the reel is not in use by disengaging a pivoted'element 24, Fig. 4, from a spring 23 to allow the latter to engage and prevent rotation of a pinion 22 fixed to the shaft 2.
Patent GB-294956-A (GB)
Title: Improvements in candy pullers
IPC: A23G3/10
Filed: 1928-06-26
Abstract: 294,956. Hobart Manufacturing Co., (Assignees of Johnston, H. L., and Meeker, D. A.). Aug. 2, 1927, [Convention date]. Confectionery or sweetmeats.-A candy puller comprises shafts 18, 19 projecting from the same side of a support or combined bearing blocks 16, 17, each shaft carrying a pair of arms 40, 42, 47, 50 spaced at different distances from the shaft axis, the arms spaced remote from the shaft travelling in intersecting paths. The candy puller is attachable to a machine, Fig. 5, driven by a motor 72 and having a bowl 74 in which material is acted upon by beating, stirring or cutting apparatus 73. The main shaft 12 of the candy puller has a squared end 60 which fits into a recessed shaft 80 of the main machine. The bearing 11 of the shaft 12 is positioned in a housing 75 by a pin 78 and is secured therein by a thumbscrew 76. The shaft 12 carries a sprocket 14 coupled thereto by a pin which shears when the load becomes excessive. The sprocket 14 is connected by a chain 31 to sprockets 21, 22 on the shaft 18, 19, the sprockets 21, 22 being positioned between the bifurcations of the blocks 16, 17 which are secured by bolts 26, 28 to the main support 10 which carries the bearing 11. The blocks 16, 17 are slotted to accommodate the bolts 26, 28 whereby chain-tensioning adjustments may be effected. The gearing is enclosed in a two part casing 36, 37 secured to the support 10. The pulling-arms 40, 42, 47, 50 are formed as U-shaped members, one of which has an extension 44 by which it is secured to the shaft 19. The extension 44 passes through an aperture in the shaft and the underside is flatted to receive a lock-nut 45 and to prevent the extension from turning in the aperture. The shaft 18 has a slot, elongated sufficiently to permit the arm 47 and the bend 53 to be passed through. The upper part of the slot is filled with a fillet piece 54 and the underside of the cross piece 48 of the arms 47, 50 is flatted to receive the lock nut 56 and to prevent, turning.
Patent GB-805265-A (GB)
Title: Improvements in magnetic ring transformers of the core balance type
IPC: H02H3/38
Filed: 1955-06-28
Abstract: 805,265. Protective cut-out systems. BALDWIN, H. T. June 27, 1956 [June 28, 1955], No. 18564/55. Class 38 (5). Two core-balance current transformers A, B, each have a bias winding a, b<SP>1</SP> arranged in series but reversely connected so as to produce opposite effects in the respective secondary windings a, b. The bias windings are supplied from a potential transformer C which has its primary connected between an artificial neutral D and one line L<SP>1</SP>. The protected system is earthed at O either directly or through an impedance. The windings a, b may be connected in parallel or to two separate devices.
Patent GB-1222278-A (GB)
Title: Coupling device
Inventor: GUILBERT NICHOLAS ROBERT
IPC: B66B11/00
Filed: 1968-04-19
Abstract: 1,222,278. Coupling carriages to carts. GUILBERT Inc. 19 April 1968, 18638/68. No. Heading B7L. [Also in Division B8] In order to load and unload a dumbwaiter cart 25 on to and from a lift car 17 (as in Specification 1,032,550), the lift car 17 carries a horizontally-extendable assembly 32 comprising rails 33 along which a carriage 38 is advanceable and retractable by a chain 75 secured to the carriage 38 and driven by gear mechanism on the lift car 17, the carriage 38 having a spring- loaded retractable male member 52 engageable in a hole 88 in a female member 53 bolted to the floor 30 of the cart 25 so that the cart 25 is coupled to the carriage 38, the carriage 38 having guide rollers 47 for engaging the guide surfaces 86, 81 to orient the cart. The male member 52 is retracted from the hole 88 by moving a rail 67 so that cam 66 thereon engages with a roller on a pivoted arm 72 so as to cause the end 71 of the arm 72 to push downwards a collar 64 on the male member 52. In operation, the assembly 32 is extended from the lift car 17 to beneath the cart 25 and the carriage 38 is advanced along the assembly (the rollers 47 engaging the guide surfaces 86, 81 to orient the cart 25) until the member 52 is pushed down and released to couple the carriage 38 to the cart 25. The carriage 38 is first retracted into the car 17, then the assembly 32.
Patent GB-1137071-A (GB)
Title: Process for preparing hydroxyalkyl acrylate or hydroxyalkyl methacrylate
Inventor: MURAYAMA MASAYUKI
IPC: C07C69/54
Filed: 1966-04-28
Abstract: 1,137,071. Hydroxyalkyl acrylates or methacrylates. JAPAN GAS-CHEMICAL CO., Inc. 28 April, 1966, No. 18757/66. Heading C2C. Hydroxyalkyl acrylates or methacrylates are prepared by heating acrylic or methacrylic acid, 1À-1À7 moles of an alkylene oxide per mole of acrylic or methacrylic acid, 0À2 to 5% by weight of the acid of an iron (III) compound as catalyst with 0À02-2 parts by weight per part of iron, of copper, mercury, chromium or iodine or a compound of copper, mercury or chromium at between 50‹ and 120‹ C. The catalyst may be dissolved in the acid and the oxide added as liquid or gas. The iron compound may be a halide, thiocyanate, nitrate, carbonate, sulphate or organic acid salt and a polymerization inhibitor such as tannic acid or N,N<SP>1</SP>-di-2- naphthyl-p.phenylene diamine may be present. Hydroquinone may be used as an inhibitor, but a chromium compound must be used as the promotor with an additional alkali metal, alkaline earth metal compound, ammonia, a quaternary ammonium compound, an amine or amine salt and pyridine or salts thereof to prevent quinone formation. In a purification process for the acrylates and methacrylates containing hydroquinone a compound of chromium together with from 0À05 to 5% by weight of the above additives are added and the esters distilled from the resultant mixture.
Patent GB-1216034-A (GB)
Title: Treatment of tall oil
IPC: C11D15/00
Filed: 1969-04-14
Abstract: 1,216,034. Treatment of fatty acids. UNITED STATES ATOMIC ENERGY COMMISSION. 14 April, 1969 [10 May, 1968], No. 18954/69. Heading C2C. [Also in Division C4] The colour characteristics for an animal or vegetable derived fatty acid are upgraded by irradiating the acid with high energy radiation sufficient to reduce the Gardner colour index.
Patent GB-477951-A (GB)
Title: Improvements in resilient supports
IPC: F16F1/38
Filed: 1936-07-08
Abstract: 477,951. Resilient supports. HOUDAILLE, M., and LECLER, C. July 8, 1936, No. 18973. Convention date, July 8, 1935. [Class 108 (iii)] [Also in Group XXV] In a resilient support comprising at least one rubber block connecting two parallel members and having a cross-section such that the angles made by each of its end faces with either of the members it connects are one an acute angle and the other an obtuse angle, the block is mounted between the members with little or no pre-compression and without adhesion, the diagonal connecting two opposite obtuse-angled corners of the cross-section forming an angle with the two members greater than 45‹. Fig. 8 shows a block 1, of parallelogram section, in normal position and Fig. 9 the same block when the lower member 3 is displaced in the direction of the arrow f relatively to the upper member 2. The block may be of trapezoidal or other shape. As shown in Fig. 12 the members are coaxial sockets 2, 3 and are connected by annular rubber blocks having frustum-shaped end faces preferably separated by spaces 5 to permit the distortion of each block. In a modification the blocks are replaced by a single block.. The, or each, block may be wound in a spiral on the socket 3 or may be formed by fitting a number of rubber rings into each other, and may have stepped or curved end faces. Fig. 15 shows a construction embodying opposed rubber blocks fixed between sockets 2, 3 and 2k, 3k respectively, a central portion 8 on a rod 7 slidable through the mounting being adapted to move the inner sockets 3, 3k in the direction of the arrow f<1> or f<2>. A mounting acting in one direction may be formed by dividing the construction shown in Fig. 15 centrally through the portion 8. The Specification also contains a certain amount of theoretical discussion illustrated by a number of Figures. Specifications 296,776, [Class 108 (iii)], and 434,583, [Group XXV], are referred to.
Patent GB-1377827-A (GB)
Title: Locks
IPC: E05B15/16
Filed: 1973-05-08
Abstract: 1377827 Locks MICRO METALSMITHS Ltd 8 May 1973 [24 April 1972] 18974/72 Heading E2A [Also in Division C7] Destruction of a door lock by drilling is prevented by spray-coating its body with a layer of hard, particulate material. This material may be alumina or a nickel-chrome-boron alloy, and has a hardness 2 of at least 800 Vickers.