baber/WOPTO huggingface dataset:
Patent GB-299332-A (GB)
Title: Manufacture of azo-dyestuffs
IPC: C09B29/20
Filed: 1928-10-22
Abstract: 299,332. E. G. Farbenindustrie Akt.- Ges. Oct. 21, 1927, [Convention date]. Azo dyes; lakes. - Azo dyes showing good fastness, especially to light, are produced in substance or on the fibre by coupling a diazotized 2 : 3-aminnaphthoic ester or a substitution product thereof with a naphthol or with an arylide of 2 : 3-oxynaphthoic acid or a substitution product thereof. The following examples are specified. (1) Boiled cotton yarn is dyed a bright bluish red tint fairly fast to kier-boiling and of good fastness to light by impregnating in an aqueous grounding liquor containing the p-anisidide of 2 : 3-oxynaphthoic acid, turkey red oil. caustic soda, and formaldehyde, and developing in a bath containing the diazotized methyl ester of 2 : 3-aminonaphthoic acid. (2) Boiled cotton yarn is similarly dyed a bluish red tint by impregnating in a liquor containing the #-naphthylamide of 2 : 3- oxynaphthoic acid as coupling component and developing with the diazotized ethyl ester of 2 : 3-aminonaphthoic acid; if the coupling component is the a-naphthylamide a bordeaux red dyeing is obtained, and if the #-naphthylamide is coupled with the diazotized methyl ester a bluish red dyeing is obtained. (3) Boiled cotton yarn is similarly dyed a bluish red tint by impregnating in a liquor containing the 5-chlor-2- anisidide of 2 : 3-oxynaphthoic acid as coupling component and developing with the diazotized methyl ester of 2 : 3-aminona.phthoic acid; the coupling of the 4-chlor-2-anisidide with the diazotized ethyl ester is also specified. (4) Homologous esters may replace the methyl and ethyl esters in examples (1) to (3). (5) The dyeings of examples (1) are produced in baths of weaker concentration to obtain pink tints. (6) An aqueous solution of the diazotized methyl ester of 2 : 3-aminonaphthoic acid is run into an aqueous liquor containing the p-anisidide of 2 : 3- oxynaphthoic acid, caustic soda, sodium carbonate, and Turkey red oil, and the solution is acidified to precipitate the dyestuff. The Specification as open to inspection under Sect. 91 (3) (a) comprises also statements that the dyestuffs may be mixed in a wet or dry state with hydrate of alumina, heavy spar, blanc fixe and like substrata and are suitable for the preparation of graphic colours, painting colours, and colours for wallpaper. This subject-matter does not appear in the Specification as accepted.
Patent GB-1012008-A (GB)
Title: Process for the production of pyrrolidine compounds
Inventor: CAVALLA JOHN FREDERICK
IPC: C07D207/08
Filed: 1963-08-01
Abstract: Substituted pyrrolidines of general formula <FORM:1012008/C2/1> where R represents hydrogen, or an alkyl or alkanoyl group having 1-4 carbon atoms, and R1 represents an alkyl group having 2-4 carbon atoms, are prepared by reacting a dinitrile compound of formula <FORM:1012008/C2/2> with hydrogen and methanol at a temperature of 140-190 DEG  C. and a pressure of at least 100 atms. in the presence of a Raney nickel or Raney cobalt catalyst, and, if desired, the product is converted to an acid addition salt thereof.  The preferred quantity of catalyst employed is approximately 25% by weight of the dinitrile starting material.  The free bases and acid addition salts of the invention exist in racemic as well as d- and loptically active forms.  The separated isomers may be obtained by forming salts with optically active acids, followed by fractional crystallization and regeneration of the d- and lfree base forms.  The m - substituted a  - phenyl - a  - alkyl-succinonitrile starting materials in which R represents hydrogen or a lower alkyl group can be prepared by heating the appropriate m-substituted phenyl alkyl ketone at reflux temperature with ethyl cyanoacetate, acetic acid and b -alanine in benzene, with continuous removal of the water formed, and heating the resultant m-substituted ethyl a -cyano-b -alkyl-cinnamate at reflux temperature with potassium cyanide or sodium cyanide in aqueous ethanol. The m-alkoxyphenyl alkyl ketones are obtained by reacting the corresponding m-hydroxy compounds with a dialkyl sulphate in aqueous-alcoholic sodium hydroxide, or by reaction with an alkyl halide.  The m-substituted a -phenyl-a -succinonitriles in which R represents a lower alkanoyl group can be prepared by reaction of the corresponding phenol with an alkanoic acid halide or anhydride.  Specification 1,002,851 is referred to.ALSO:Therapeutic compositions useful as analgesics and which may be administered orally or parenterally as tablets, pills, sachets, and powders, or as solutions or suspensions for oral use or sterile injectable solutions or suspensions in ampoules contain as active ingredient compounds of formula <FORM:1012008/A5-A6/1> in which R represents hydrogen or an alkyl or alkanoyl group having 1-4 carbon atoms, and R1 represents an alkyl radical having 2-4 carbon atoms, or acid addition salts thereof. Specification 1,002,851 is referred to.
Patent GB-869007-A (GB)
Title: New heterocyclically substituted steroids
IPC: C07J75/00
Filed: 1957-10-02
Abstract: The invention comprises saturated and unsaturated 20-hydroxy pregnanes and allopregnanes which may be nuclearly substituted and contain in the 20-position a radical of formula:  <FORM:0869007/IV (b)/1> in which R1 represents hydrogen or an alkyl group containing one or two carbon atoms, and R2 represents a pyridyl or piperidyl residue bound in the 2-position to the carbon atom shown in the above formula, their esters, ketals, N-lower alkyl and N-lower acyl derivatives and salts thereof.  The compounds are prepared by reacting a 20-oxo-allopregnane or pregnane with a 1-pyridyl-(21)-alkyl lithium compound, and if necessary reducing the resulting pyridyl compound to the piperidyl analogue. Examples detail the preparation of D 5-3b ,20-dihydroxy-20-methyl-21-pyridyl-(21) -pregnene, 3b ,20-dihydroxy-20-methyl-21-piperidyl-(21)-allopregnane their esters and salts, N-methyl-3b -acetoxy-20-hydroxy- 20- methyl- 21- piperidyl- (21)- allopregnane and salts thereof, together with the corresponding 20,21 -dimethyl analogues of the foregoing compounds.ALSO:Pharmaceutical compositions having a coronary dilatory action comprise saturated or unsaturated 20-hydroxypregnanes or allopregnanes containing in position 20 the grouping -CHR1R2, in which R1 is hydrogen or an alkyl group of one or two carbon atoms, and R2 is a pyridyl or piperidyl residue bound in the 2-position to the carbon atom shown in the above formula, their esters, ketals, N-lower alkyl or N-lower acyl derivatives or salts thereof, together with a pharmaceutical carrier suitable for enteral or parenteral administration.  The preparations may be in the form of tablets, dragees, solution, suspensions or emulsions and may contain auxiliaries such as preserving, stabilizing, wetting, emulsifying and buffering agents or other therapeutic substances.
Patent GB-1096912-A (GB)
Title: Synthetic polymers
Inventor: THOMPSON MORICE WILLIAM
IPC: C08F290/00
Filed: 1963-08-06
Abstract: An addition polymer containing a terminal functional group reactible in a condensation reaction, is prepared by polymerizing an ethylenically unsaturated monomer in the presence of an initiator and a chain transfer agent each of which contains said functional group. The functional group may be a carboxyl, hydroxyl, amino or substituted amino groups.  The chain transfer agent, which is preferably present in an amount from 5-20 gm. moles per gm. mole of initiator, may be, for producing polymer chains containing a terminal carboxylic acid group from an ethylenically unsaturated monomer, one of the following combinations: g ,g 1-azobis-(g -cyanovaleric acid) as initiator and thioglycollic acid as chain transfer agent, <TABS:1096912/C3/1> Similarly to produce polymer chains containing a terminal hydroxyl, amino, or substituted amino, the combinations of initiator and chain transfer agent are g ,g 1-azobis (g -cyano-n-pentanol) with 2-mercapto ethanol, a ,a 1-azobis (g -amino-a , g -dimethyl valeronitrile) with b -mercapto  <TABS:1096912/C3/2> Other terminal groups, such as carboxylic acid chloride, isocyanate and epoxide, can be produced.  Suitable ethylenically unsaturated monomers from which the monofunctional polymer chains may be produced include:  C1- 18 esters, amides and nitriles of acrylic and methacrylic acids; styrene and alkyl styrenes; C1- 8 vinyl esters: vinyl heterocyclic compounds, e.g. 2-vinyl pyrrolidones.  The monofunctional polymers may be reacted by a condensation reaction with an ethylenically unsaturated compound containing a complementary reactive group.  Suitable compounds are:  <TABS:1096912/C3/3> The product of such a condensation reaction is a polymeric chain which is monofunctional with respect to the "vinyl" type polymerization. Selected graft co-polymers may be produced from these precursors by co-polymerization with a monomer to produce a different polymeric chain.  Linear block copolymers may be made by reacting a monofunctional group with another monofunctional polymer, both being made according to the invention but with one of the polymers containing a functional group complementary to the functional group of the other so that the two can be reacted by a condensation reaction.
Patent GB-348005-A (GB)
Title: Improvements in or relating to adjusting devices for lighting fixtures
IPC: F21V21/104
Filed: 1930-10-16
Abstract: 348,005. Mounting electric lamps in shades. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. Oct. 16, 1930, No. 31001. Convention date, Nov. 30, 1929. [Class 75 (iv).] A shade holder 1 is suspended by means of a chain 3, a lamp holder 5 is secured to a body which is slidable axially in one or more links of the chain, and one or more devices are provided for securing the body in any desired adjusted position. The slidable body may comprise a tube 6 which is traversed by the conductors 4 and secured in position by means of a set-screw 7, Fig. 1, or a spring-urged stud 8, Fig. 2, engageable in apertures 9 in the tube. The securing device may be carried by one of the links or by a lengthening piece intermediate the shade holder and the first link.
Patent GB-172005-A (GB)
Title: Improvements in and relating to tapping machines
IPC: B23G1/18
Filed: 1921-11-21
Abstract: 172,005. Soc. Anon. Le ProgrÞs Industriel. Nov. 25, 1920, [Convention date]. Taps; tapping; sockets.-Nuts &c. to be tapped are mounted on a carriage G, Fig 4, which may be displaced angularly so as to align the work with a tap spindle F, which is floatingly-driven by the engagement with its chip-clearing grooves of projections in gear-driven removable sockets 5, Fig. 5, mounted in and driven from their spindles by studs 6. The tap F, Fig. 7, has a plain portion F<1>, an intermediate tapered and threaded portion F<2>, and a pull portion, and is provided with a square end F<4> by means of which it drives a feed-screw E mounted in a detachable nut D secured in the frame-bracket C. The feedscrew is provided with a reduced plain part near its outer end so that at a given point the positive feed may be disengaged by the withdrawal of the tap from the feed-screw.
Patent GB-867022-A (GB)
Title: Method for continuously generating bevel gears
IPC: B23F5/20
Filed: 1958-09-30
Abstract: 867,022. Gear-cutting. HARBECK, M., [trading as HEIDENREICH & HARBECK]. Sept. 30, 1958 [Oct. 1, 1957], No. 31229/58. Class 83 (3). A method of continuously cutting straighttoothed octoid bevel gears in which the cutting- edges of the tools represent the right or left flanks of a crown wheel &c., comprises arranging the cutting-edges in spirals on the tools to describe cycloidal cutting arcs and moving each tool so that the flank line represents the envelope of the arcs. The method is based on the fact that a point on a circle K 1 , Fig. 4, rolling on a circle K o  describes a hypocycloid (1, 11; 2<SP>1</SP>, 2<SP>11</SP>; &c.) which is a straight line and the paths of cutting-edges rotating about a point P are tangential to these hypocycloids. By arranging a number of cutters in a spiral a tooth flank can be produced having a series of cycloidal cuts which approximates to the desired straight line. Both tooth flanks may be cut simultaneously by two cutters as in Fig. 10. The cutters may also be designed to cut in the reverse direction of rotation. In a further modification, two intermeshing, contra-rotating cutters, Fig. 12, work in the same tooth-space. The teeth can be crowned by setting the initial and final cutting-blades at greater radial distances from the cutter-centre, Fig. 13. The teeth produced may be of equal or differing heights at the small and large ends according as to whether the cutter head is parallel or not to the crown wheel. The first three cutters on a head may be roughing cutters. Four workpieces may be carried on an indexable workhead, Fig. 19, twin cutters being carried on a slide which can be fed to and from a workpiece. The teeth may subsequently be hardened and ground.
Patent GB-175041-A (GB)
Title: Improvements relating to tills and the like
IPC: G07D11/00
Filed: 1920-11-06
Abstract: 175,041. Bromilow, H. J. Nov. 6, 1920. Boxes; clamping-devices.-A till for Treasury notes comprises a rectangular box 1 having a lid comprising a central portion 3 adapted to rise and fall vertically within the casing, and side portions 4, 5 each provided with a rib 6, the horizontal distance between the ribs being approximately the length of a Treasury note. The cover 3 is supported by a forked bracket 7 attached to a pivoted lever 8, and located vertically below the central portion 3 of the cover and extending along the full width of the casing 1 is a rising and falling platform 12 guided by a projection 13 on the central portion 3 which enters a slot formed with an upturned portion 15 of the platform 12, the platform 12 being normally retained in position by the arm 17. In operation, the note is placed under the central portion 3, its ends resting on the upper surfaces of the side portions 4, 5 inside the ribs 6, and the lever 8 is depressed causing the note to be gripped between - the portion 3 and the platform 12 and lowered into the casing 1. The lever 8 is then released and the platform 12 rises, gripping the note between itself and the under surfaces of the side portions 4, 5. An additional compartment similar to that described may be provided for the insertion of notes of a different denomination and having means for enabling the top note to be withdrawn for giving change when a note of higher denomination is placed in the other portion of the till. To provide a record of the number of notes inserted into the till a counter 18 is provided and operated by the lever 8.
Patent GB-679932-A (GB)
Title: Bogies for railway vehicles
IPC: B61F3/08
Filed: 1949-12-07
Abstract: 679,932. Railway-vehicle bogies. KRUPP LOKOMOTIVFABRIK, F. Dec. 7, 1949 [March 24, 1949; May 23, 1949], Nos. 31401/49 and 31402/49. Class 103(vi) A wagon body is supported by undamped bearing springs 55 of the torsion rod type on bogies guided by king pins 56. Each bogie has a frame 57 supported on undamped torsion rod springs 58 from an undercarriage consisting of a light weight frame 47 and wheel sets 48. The weight of the wagon is transmitted via the springs 58 and axle boxes 50 without loading the frame 47 in bending, and the axles 8 are journalled without play in roller bearings. The beams 51 of the frame 47 may have limited relative pivotal movement about the axis 52 so that the wheel sets may follow inequalities in the track. To this end a cross connection 59 is provided which comprises two vertically spaced apart springs so that it may twist elastically and permit vertical movement of 47. The movements of 47, in the direction of travel, and transversely to the track, are shared by the frame 57 which has pins 53 attached to a cross-members 54 of the frame, which pins engage the undercarriage 47 by ball joints 16 and guides 17 fixed by resilient blocks at the mid-points of the beams 51. The side forces acting on the wheels are transferred to the frame 57 both by the cross connection 59 and by transverse bars 18 having heads 33 at their opposed ends which are supported by resilient blocks on bearings 34 which in turn rest by knife edges 35 against a frame depending member 19. The resilient blocks on the guides 17 and bars 18 serve to eliminate or damp high frequency oscillations. The king-pin 56 is connected by a ball joint 20 and a return device with cross-members of the frame 51, the return device consisting of torsion rod springs 21 adapted to press against abutments 22 of the ball joint. In a modification, Figs 1-4 (not shown), the cross connection 4 is attached to a downwardly projecting portion 5 of the frame 1, and the cross connection may be in two pieces symmetrical about the longitudinal plane of the bogie. In a driving bogie the motors 36 are mounted on the frame 57 by links 37, 38 so as not to subject the frame 47 to bending stresses, the motors driving a gear wheel 40 on the axle of a wheel set by a pinion 39. A gear box 41 is mounted on the axle and pivotally hung from the frame, and a flexible clutch is disposed between the pinion 39 and the motor shaft 42. A hollow shaft drive may however be employed. To avoid spring bending in the vertical direction, Fig. 10, leaf springs 27 are attached to the beams 51 and set on edge. The adjoining ends of the springs 27 are fixed to a box frame 29 having an opening 30 for the king-pin 56 and the ball joint 20 which rests against box walls 31 so that forces acting in the direction of travel may be transmitted to 56. In other modifications described and shown, coil &c. springs may be used in place of torsion rod springs.
Patent GB-681379-A (GB)
Title: Improvements in or relating to strainers for liquids
IPC: B01D35/06
Filed: 1949-12-08
Abstract: 681,379. Filters. WARDLE, J., and WARNIC ENGINEERING CO., Ltd. Dec. 7,1950 [Dec. 8, 1949], No. 31597/49. Class 46 An edge strainer of the kind consisting of a pile of spaced plates rotatably mounted within a casing 1 comprises a cylinder 8, Fig. 1, a plurality of ring-like plates 9, Fig. 2, supported about the cylinder and shaped to provide longitudinal channels 15, means within the cylinder 8 to provide one or more further straining stages such as a magnetic strainer 31, and means such as apertures 16 at the lower end of the cylinder, Fig. 1, and openings 17 at its upper end so that liquid which has been strained can flow along the channels 15 into the interior of the cylinder and thence towards the outlet 3 of the casing 1. The magnetic strainer 31 is disposed so that the liquid flows around and past it. The upper end of the cylinder 8 is rotated in upper and lower openings of a sleeve 4 by a shaft 25 having a boss 29 through which extends a cross pin 30 engaging in slots communicating with the periphery of the top of the cylinder. The lower end of the cylinder rotates in an annular recess in a plate 18 secured to the sleeve 4 by rods 19, whose lower ends are positioned by lugs 20 so that the sleeve 4, cylinder 8, plates 9, plate 18 and rods 19 may be removed as a unit when screws 7 are withdrawn. By releasing a cover plate 27 from the sleeve 4 it may be removed together with the shaft 25, the magnetic strainer 31 and any other filters carried by the shaft without disturbing the cylinder 8; the cross-pin 30 disengages from the slots in the cylinder 8. The ring-like plates 9 are secured with intervening washers on rods 11, Fig. 2, between an end plate 13 and a flange 6A of the cylinder into which the rods are screwed. Fixed scraper blades 23, Fig. 2, are interposed between adjacent rings 9. The filter means provided in addition to or instead of the magnetic filter 31 may be formed of or include chamois leather, fabric, felt, paper or the like, and extend across the cylinder 8. In Fig. 5, the cylinder 37 engages in an annular recess in the underside of a sleeve 34 having an inlet port 35 and outlet port. 36 and at its lower end engages about a central circular portion of a plate 41 secured to the sleeve 34 by rods 40. It is rotated by a handle 46 acting through a shaft 45 and a key 44 co-operating with a central slot 43. Communication between the interior of the cylinder 37 and the outlet 36 is provided via a fine filter unit 49 carrying fabric or the like and holes 51 provided in both the upper end of the filter unit 49 and the upper end wall 42 of the cylinder 37. A magnetic strainer may be mounted on the spindle 48 to provide three stages of straining within the casing 33. Each straining plate 9 may comprise a number of arcuate segments, Fig. 6 (not shown), each having an apertured central projection 10 and, at each end, a half projection formed to engage one of the rods 11.
Patent GB-543884-A (GB)
Title: Improvements in or relating to seals for floating roofs for tanks
IPC: B65D88/46
Filed: 1939-12-07
Abstract: 543,884. Tanks. WIGGINS, J. H. Dec. 7, 1939, No. 31731. [Class 69 (i)] A seal for a floating roof for a tank comprises one or more shoes supported by a hanger or hangers extending upwardly from the roof and bearing against the side wall of the tank to transmit thereto the horizontal component of the force acting on the hanger or hangers. The roof 2 may be of double-decked, pan or other type, and the seal includes a shoe A bearing against the tank wall 1 and carried by hangers B mounted on the edge of the roof, and unperforated gas-tight fabric C with one edge attached to an outwardly projecting rim 24 on the roof and the other edge to the upper edge of the shoe A. The shoe A, preferably of galvanized sheet steel and in the form of a split ring, may have rubbing strips on its outer face and be integral or formed of connected segments. Spaced round the roof are presser devices D as in Specification 544,062. The inturned lower edge of the shoe is stiffened by a rod 4 held by clamps 5. The hangers B preferably comprise angle bars pivoted to the roof at 6 and carrying rollers 11 bearing against the tank wall, the upper ends of the angle bars carrying brackets 8 adjustably supporting threaded bars 9; resilient means, preferably comprising spring rods F acting through links 13, yieldingly hold the hangers B. A secondary seal E, as in Specification 544,061, is arranged above the main seal C, its lower edge, and the upper edge of the main seal C, being held to the shoe A by rings 26, 34, clamps 27 and bolts 28. The ring 34 is further supported by clamps 271, Fig. 5, and bolts 281; angle irons 50 connect adjacent clamps 271, and the rods 9 depending from the hangers B have cross members 52 welded thereto to engage the angle irons 50 and thereby support the shoe. The lower end of the main seal C is held to the flange 24 of the roof by rod 341, clamps 27<SP>11</SP> and bolts 2811. In forming the shoe A, lugs may be temporarily welded to the inner wall of the tank 1, and shoe sections supported thereon and welded together.
Patent GB-1111426-A (GB)
Title: Hydrocarbon conversion
IPC: C10G9/14
Filed: 1965-07-26
Abstract: The pyrolysis of hydrocarbons in a tubular reactor is effected with an inlet temperature of 450-750 DEG  C. and an outlet temperature at least 50 DEG  C. above and in the range 600-950 DEG  C. and at intermediate points along the reactor the temperature is above or below the straight line profile the temperature difference compared to the inlet at points one, two, three and four fifths of the distance along the tube expressed as a percentage of the total temperature difference being in the ranges (a) 35-50%, 60-75%, 75-90% and 85-97% or (b) 4-10%, 10-25%, 20-42% and 40-64%.  The pressure may be up to 150 p.s.i.g. and the feed rate 50-500 lbs. per hour per cubic foot of reactor volume and a diluent may be added.  Ethylene and propylene are referred to as products.