baber/WOPTO huggingface dataset:
Patent GB-887754-A (GB)
Title: Tetracycline amides
IPC: C07C233/00
Filed: 1960-01-20
Abstract: The invention comprises dedimethylamino-6-demethyl-12a-deoxyanhydro-chlorotetracycline of the formula <FORM:0887754/IV (b)/1> and a process for the preparation of tetracycline amides of the formula R1CONR2R3 where R1 is a tetracycline radical and R2 and R3 are hydrogen atoms or alkyl radicals by reacting an ester of the formula R1COOY with ammonium formate or a formate salt of the formula H.COO(-) (+)NH2R2R3 where Y is an ester-forming organic radical.  In the example the novel amide described above is prepared by reacting ethyl 10-benzyloxy-7-chloro-11-methoxy-1, 3, 12 - trioxo - 1, 2, 3, 4, 4a, 5, 12, 12a - octahydro-naphthacene-2-carboxylate with ammonium formate in boiling xylene.  An outline synthesis of the ester starting from 2-chloro-5-methoxy-toluene is described.
Patent GB-1130517-A (GB)
Title: Improvements in or relating to electrostatic dust precipitators
IPC: B03C3/10
Filed: 1966-01-17
Abstract: 1,130,517. Electrostatic precipitators. G. A. MESSEN-JASCHIN. 17 Jan., 1966 [18 Jan., 1965], No. 2052/66. Heading B2J. An electrostatic dust precipitator has a cylindrical ionizing electrode assembly 11, 16, 17 surrounding a cylindrical collector electrode system 18 and mounted coaxially therewith in a housing 19 so shaped that gas to be cleaned passes substantially radially through the ionizing electrode assembly and the collector electrode system and clean gas exits in an axial direction, means being provided to rotate the ionizing electrode assembly about the axis on which it is mounted and at least one brush, e.g. 32, being positioned to brush the whole length of the individual ionizing electrodes to clean them of any dust particles which may deposit directly on them. The ionizing electrode assembly comprises vertical ribs 11 of insulating material mounted between a circular plate 12 and a circular metal rail 15 and forming a cage on the outside of which ionizing electrodes 16, 17 are supported. The ionizing electrodes may consist of one or more relatively thin wires 16 at high voltage interleaved with one or more relatively thick wire 17 at earth potential, the wires being wound in helical grooves formed in the ribs 11, Fig. 3 (not shown). Alternatively, the wires may form horizontal closed rings which are electrically connected with one another in an alternate fashion. In either construction, the thick wire 17 may be replaced by a thin metal strip 40, Fig. 4 (not shown), disposed on edge in the grooves formed in the ribs II and having a fiat or slightly bowed profile. As shown, the electrode 16 is connected through a wire 36 to the rail 15 on which runs a contact roller 38 connected to a high voltage generator. The thick wire 17 is connected via a wire 39 to the plate 12 which is earthed through rollers 23 which run on a circular rail 24. The collector electrode system 18 rests on the plate 12 and consists of a disposable thick-walled tube of metal wool which can be removed through a collar 43 when a cover 42 is lifted off a casing 41 on the top wall 22 of casing 19. The plate 12 and hence the ionizing electrode assembly and the collector electrode system are rotated by a motor driven reduction gear 27 via gearing 28, 29. Alternatively, the collector electrode system may be stationary by being suspended from the collar 43. Coarse and fine brushes 31, 32, Fig. 1, are mounted along the length of the ionizing electrode assembly and are rotatably driven at a considerably higher speed than the latter by the reduction gear 27 via bevel gears 33. The housing 19 is in the shape of an involute, the gas to be cleaned entering at 20 and the clean gas leaving at 44. Guide vanes may be provided in the housing 19 to improve the radial flow of gas. The brushes are preferably separated from the flow space by baffles 34, 35 made of insulating material.
Patent GB-130271-A (GB)
Title: Improvements in Incandescent Gas Burners.
Inventor: REGAN JOHN EDWARD
IPC: F23D14/12
Filed: 1919-01-28
Abstract: 130,271. Regan, J. E. Jan. 28, 1919. Incandescent g a s burners. - The outer surface of the mixing- chamber of an incandescent gas burner is threaded to receive a milled air-regulating ring 21 which is locked in any position over the air apertures 9 by a ring nut 22. The mixing-chamber is provided with a slot 10 to fit over a screwed pin 15 on the nipple support 12, and is secured in position bv a butterfly nut 16. In the case of a downwardly extending mantle device, a bayonet slot 20 may be used.
Patent GB-1137191-A (GB)
Title: Improvements in or relating to hydraulic cylinders
Inventor: SAVORY FREDERICK RALPH
IPC: F16J10/02
Filed: 1967-01-16
Abstract: 1,137,191. Cylinders. STEEL CONSTRUCTION & ENG. CO. (NOTTS.) Ltd. 27 Nov., 1967 [16 Jan., 1967], No. 2129/67. Heading F2T. An endplate 2 is secured to an hydraulic cylinder 1 by means comprising a flange 11 on the endplate located in a counterbore 3 in the cylinder and a thrust ring 17 which is formed of at least three segments and is held in a groove 5 in the counterbore by a locking ring 20 secured, as by screws 26, between the ring 17 and the unflanged portion 10 of the endplate, the ring 17 extending from the groove 5 to overlap part of the outer face 15 of the flange 11. The contact faces 18, 19 and 21, 13 between the ring 20 and the ring 17 and the portion 10 respectively are coned to provide a wedging action and the flange 11 is sealed to the cylinder by a sealing ring 7. The outer ends of the holes 24 for the screws 26 are enlarged and tapped for screws to facilitate removal of the locking ring 20 and radial holes 8 are provided in the cylinder for ejector pins (9, Fig. 2, not shown) for pushing the segments of the ring 17 out of the groove 5 when ring 20 has been removed. The endplate has a flanged bush 28 and a seal 31 for the piston rod (not shown).
Patent GB-899051-A (GB)
Title: Aromatic aminohydroxyl compounds, their production and uses
IPC: A61K8/41
Filed: 1960-01-20
Abstract: The invention comprises compounds of formula <FORM:0899051/IV (b)/1> wherein R is an alkyl, aryl, alkylaryl or cycloalkyl group which may be substituted, especially by hydroxyl, alkoxy, amino, alkylamino and dialkylamino groups.  They are prepared by reacting 1 : 2 : 4-trihydroxy-benzene with a primary amine R-NH2 in an aqueous medium protected from the air and then isolating the reaction product or a salt formed therefrom by reaction with an inorganic acid.  The compounds are used as hair dyes (see Group IV (c)).  In examples the preparation of 1-cyclohexylamino-, -phenylamino-, -o- or -p-methoxyphenylamino-, -o-, -m- or -p-methylphenylamino-, o- or -p-hydroxyphenylamino-, -methylamino-, -n-pentylamino-, -p-amino- or -dimethylaminophenylamino- and -diethyl-aminoethylamino-2 : 4-dihydroxy-benzenes is described.  The triacetyl derivatives of the first seven compounds listed above are prepared.ALSO:Hair and fur are dyed by impregnating them with an aqueous solution of a compound of the formula <FORM:0899051/IV (c)/1> wherein R is an alkyl, aryl, alkaryl or cycloalkyl group, which may be substituted, especially by hydroxyl, alkoxy, amino, alkylamino and dialkylamino groups (see Group IV (b)), and oxidizing the compound on the fibre.  The oxidation may be effected by atmospheric oxygen, preferably after treatment of the fibre with an alkaline solution, e.g. of ammonia, ammonium carbonate or dimethylamine.  Solutions of oxidising agents such as hydrogen peroxide, a hypochlorite, a bromate, a persulphate or a perborate may also be used to effect the oxidation.  Furs may be mordanted with metals such as copper, iron or chromium before dyeing. Examples of the dyeing processes are given.
Patent GB-113310-A (GB)
Title: Improvements in the Lighting Arrangements of Lamp and like Posts.
Inventor: SUNDERLAND LEO
IPC: F21S8/08
Filed: 1917-02-13
Abstract: 113,310. Sunderland, L. Feb. 13, 1917. Drawings to Specification. Lighting, systems of.-The base of a street or like lamp post is provided with openings for the emission of light from electric. gas, or other illuminating-devices arranged in the base so as to illuminate the footway or roadway. External lamps may be attached to the post at suitable positions above the base or at the top and may be controlled singly, or simultaneously by hand, or automatically, or otherwise. The Provisional Specification also states that the illuminating- devices may be arranged in the base of any street post.
Patent GB-871190-A (GB)
Title: Tris-(hydroxymethyl)-phosphine and process for making it
IPC: D06M13/285
Filed: 1958-01-23
Abstract: The invention comprises tris(hydroxymethyl) phosphine.  It may be obtained by reacting one molecular proportion of formaldehyde or of tetra-(hydroxy-methyl) phosphonium hydroxide with 1/3 molecular proportion of phosphine in the presence of a small proportion by weight of a finely divided metal, other than an alkali metal or alkaline earth metal, and/or of a compound of such metal capable of reacting with phosphine and/or of a reaction product of such metal compound with phosphine.  Especially suitable compounds are the chlorides, sulphates, nitrates, phosphates, other salts or inorganic acids, double salts, basic salts, salts of organic acids, e.g. formates, acetates, benzoates or salicylates, hydroxides, oxides, or complex salts, e.g. complex halides, provided they are capable of reacting with phosphine, of cadmium, mercury, iron, cobalt, rhodium or palladium.  The metals themselves may also be used in a finely divided form, e.g. in a colloidal form such as platinum black, and they may be supported on carriers.  The reaction is advantageously carried out in the presence of water, if desired with the addition of a water-soluble organic solvent such as an aliphatic alcohol or a cyclic ether, e.g. ethanol or dioxane, acetonitrile or dimethyl formamide.  Suitable reaction temperatures are between -10 DEG C. and +40 DEG C. and if desired superatmospheric pressure may be used. The formaldehyde may be used in polymeric form, e.g. in the form of paraformaldehyde or trioxane.  Examples are given in which the following compounds are used as catalysts: platinic hydroxide, platinous or platinic chloride, potassium platinous chloride, rhodium trichloride, cadmium chloride, mercuric chloride, palladous chloride, cobaltic chloride, ferric chloride, aluminium chloride, and a preformed reaction product of cadmium chloride with phosphine.  The product is useful as an insecticide, lubricant additive, or flame proofing agent for wood and textiles. It reacts with benzoquinone in alcoholic solution to form a yellow addition product and reacts with mercuric chloride in alcoholic solution to yield a white insoluble complex having the constitution (CH2OH)3P.HgCl2. Tetra-(hydroxymethyl) phosphonium hydroxide may be obtained (a) by reacting phosphine with 4 molecular proportions of formaldehyde e.g. using 30% aqueous formaldehyde solution in the presence of suspended silver hydroxide or (b) by reacting tetra-(hydroxymethyl) phosphonium chloride dissolved in methanol or ethanol with a solution of sodium methylate or sodium hydroxide in ethanol.
Patent GB-252422-A (GB)
Title: An improved apparatus for retorting shale, lignite, coal, and other organic materialfor the recovery of gas and oils or spirits
IPC: C10B7/00
Filed: 1925-01-27
Abstract: 252,422. Schultz, E. L. Jan. 27, 1925. Retort furnaces; charging and discharging.- Apparatus for retorting coal, shale, and the like comprises a retort having an inner shell forming the outer wall of a central heating space and an outer shell, the space between the shells being provided with louvres which are raised and lowered to feed a film of the material against the inner shell and allow distillates to escape. The retort comprises a series of louvres 16 mounted on a shell 16<a>, hot gases from a fire-box 1 being so distributed by flues 9, 5 and 2 as to form heat zones 10, 11 and 12, the hot gases escaping by a chimney 15. The fuel is charged through a delivery cone 18<a> and around the conical top 14 of the flue where it is dried and is used to form a gas-tight seal. The louvres 16 and casings 16<a> and 17 are shaken by being suspended from joists 10<c> vibrated by eccentrics 16<e> so that the fuel is caused to pass down in a film between the louvres 16 and the heated shaft composed of members 13, the distillates from the zones escaping between the louvres and through outlets 18, 19, 20. The residue is automatically discharged through openings 23 in a rotating ring 24 at the base of the shaft. The ring 24 has a toothed surface 25 with which a pawl 26 engages, the latter being operated through a bell-crank 28<a> one arm of which is actuated by a projection 31 on the casing 17, so that on the downward movement of the casing the ring is moved a step and openings 27 and 23 register, permitting the discharge of the residue. When a plastic residue is being discharged, toothed wheels 37, Fig. 6, are provided in a fixed casing 28 and are driven by pinions 35d which engage with a rack surface 35<e> inside the outer rack surface 36 which is used in conjunction with the pawl 26, Fig. 3.
Patent GB-129931-A (GB)
Title: Improvements in Metal Wearing Surfaces for Boots and Shoes.
Inventor: SCHORI RUDOLF
IPC: A43C13/02
Filed: 1919-01-31
Abstract: 129,931. Schori, R. Jan. 31, 1919. Small plates, metallic.-Metal plates 2, Fig. 1, for shoes are provided with pointed projections 1, one edge of which is at right angles to the end edge of the plate and the other inclined. Various modifications are described. A notch 3, Fig. 2, may be added to give a firmer hold in the leather. In another modification, Fig. 5, the projections may be inclined on opposite edges instead of the same, as shown in Fig. 1, and the shape of the plate 2 may be modified. In another form, Fig. 7, four prongs may be used, and a shoulder 7 will give an inclined surface when needed, as at a worn heel, Fig. 10. In another modification, Fig. 12, the plate may have a raised surface 13. The plates and prongs are stamped out of sheet metal, Figs. 8 and 14, with the parts in alinement as far as possible so as to save waste.
Patent GB-386131-A (GB)
Title: Improvements in or relating to multiple-deifvery force-feed lubricators
IPC: F16N13/12
Filed: 1932-01-27
Abstract: 386,131. Lubrication pumps. BROWN & SONS (HUDDERSFIELD), Ltd., D. and REID, J. M., Park Gear Works, Lockwood, Huddersfield. Jan. 27, 1932, No. 2424. [Class 102 (i).] The piston e of a multiple delivery pump is reciprocated by a crank c from a rack member a which in its oscillation not only causes reciprocation of the piston but rotates a toothed disc j which is keyed to a sleeve f forming the cylinder The sleeve is extended to form an endplate f<2> having passages f<3>, f<4> leading to delivery passages g<3>. In its step-by-step rotation, the inlet port p<1> of the sleeve opens to the suction and communicates in turn with successive outlet channels g<3>. The final movement to the orifices o is past a delivery valve n. For varying the delivery, a piston member m<1> is placed in the channel m<2> and its lowest position can be regulated by the set-screw.
Patent GB-821725-A (GB)
Title: Improved compression ignition engine
Inventor: RIDLEY KENNETH FRED
IPC: F02B1/12
Filed: 1957-01-23
Abstract: 821,725. Cycles; materials used for actuating; regulating. ESSO RESEARCH & ENGINEERING CO. Nov. 7, 1957 [Jan. 23, 1!957], No. 2432/57. Addition to 714,672. Classes 7(2) and 7(6) A vaporized naphtha and air in introduced into the air intake of a diesel engine, the naphtha which is introduced into the air intake being present in amount insufficient to burn under the conditions pertaining in the combustion chamber up to the time that naphtha is injected directly into the combustion chamber. The naphtha may be a virgin naphtha or a topped virgin naphtha. It is preferred that the naphtha is a light virgin naphtha. A table is provided in the Specification giving a suitable range and a preferred range of the properties of the naphtha. The amount of vaporized naphtha introduced into the air intake should not exceed 50% of the total fuel and is preferably from 15 to 35% of the total fuel. Light virgin naphtha has a low cetane number and it is therefore desirable to start injection between 35 to 45‹ B.T.D.C. The amount of naphtha injected into the engine may be between 50 to 90% or 70 to 80% of that which would be used to give the maximum rated load of the engine in the absence of aspirated fuel. The apparatus for introducing naphtha vapour may be a carburetter of the single jet type without slow running arrangements. Additional air may be introduced into the intake. The additional air may be automatically controlled with the amount of naphtha injected into the engine. One method of controlling the aspirated fuel supply is as follows. The induction pipe remote from the engine is divided into two pipes. One pipe is connected to an air filter and the other via a butterfly valve to a carburetter. The butterfly valve is connected to the throttle pedal such that the valve is wide open at maximum fuel injection and closed at minimum fuel injection i.e. under idling conditions. Naphtha may be injected into the manifold by a metering low pressure pump. The control of this pump may be linked to the primary fuel pump rack. The fuel control device described in the parent Specification may be modified to use the same kind of naphtha as the conventional and secondary fuels. A constant vacuum variable choke type of carburetter (e.g. a carburetter sold under the Registered Trade Mark "S.U.") may be used and the needle may be linked to the pump rack. Specification 787,673 [Group IV(b)] also is referred to.
Patent GB-450970-A (GB)
Title: Improvements in or relating to electric fusible cut-outs
IPC: H01H85/42
Filed: 1935-01-25
Abstract: 450,970. Fusible cut-outs. REYROLLE & CO., Ltd., A., Hebburn-on-Tyne, COATES, F., Cranlea, Whitburn Road, Cleadon, Co. Durham, and GROOM, F. H., 1, Newton Road, Newcastle-on-Tyne. Jan. 25, 1935, No. 2504. [Class 38 (i)] [See also Group XXXVII] An oil-filled container for a fusible element is provided with a row of vents along one side across which an arc is formed when the element is ruptured and through which blasts of fluid are forced by the pressure generated in the container to extinguish the arc. Figs. 2, 3, and 5 show the invention applied to a switch-fuse for a three-phase circuit. An oil-filled tank A is divided into three compartments one for each phase, each containing a fusible cutout J supported from insulating posts G and co-operating with contacts H on insulators H<1> through which the conductors pass. The cut-out casing contains a fusible element K connected to the terminals G<1> by springs L<1>. When. the element is ruptured, the magnetic action of the incoming conductors or additional magnetic material placed adjacent to the lateral vents J<1> causes the arc to form close to the line of vents so that it is extinguished by the oil forced out of the container due to the pressure generated by gas formation, screens J<2> preventing re-formation of the arc across terminals G<1>. The withdrawal. of the contact head L by spring L<1> causes pin L<3> to act through a pivoted member L<4> on a plunger L<5> whereby a catch D<2> is tripped and a frame C is drawn upwards by a spring C<5> to open the circuits in all the phases. The frame C may also be operated manually by means of a toggle E, E<1> controlled from an external handle F through gearing E3, the handle co-operating with an external projection A<5> on the tank so that the lid B can only be opened when the circuits are disconnected. The lid is provided with counterweights B<2>, and spring clips A<4> for holding it in open position. The fuse element container may be made asymmetric with an enlargement opposite the vents to provide an adequate supply of fluid or may have a separate renewable unit shaped to form grooves opposite the vents. The throats of the vents may also be renewable. The container itself may be divided longitudinally into two or more parts or may be a hollow moulded body with an opening in one side adapted to receive grooved or slotted vent-pieces. In another construction, Fig. 6, the container is formed of superposed plates M of which alternate ones have vents M<1>. The plates may be clamped resiliently so that they will separate slightly to relieve excessive pressure. The fuse element N is arranged close to the vents and the contact heads N<1> normally close some or all of the vents. A simple fuse not combined with switch means may be mounted by means of blade contacts on insulators similar to H<1>. Specification 435,250, [Group XXXVII], is referred to.
Patent GB-1150866-A (GB)
Title: Decoder and Encoder With A Logarithmic Curve
IPC: H04B14/04
Filed: 1968-01-18
Abstract: 1,150,866. Non-linear digital/analogue converters. INTERNATIONAL STANDARD ELECTRIC CORP. 18 Jan., 1968 [26 Jan., 1967], No. 2694/68. Heading G4H. A non-linear digital to analogue decoder having a logarithmic characteristic includes a register RG (Fig. 2) for the binary number to be decoded, the most significant bit of which represents its polarity, and two decoders D1, D2 for the more significant and less significant bits respectively, the outputs from decoder D1 controlling via electronic gates C<SP>1</SP>1-C<SP>1</SP>4, C<SP>11</SP>1-C<SP>11</SP>4 the point of injection of a current, the value of which is determined by the output of decoder D2, into one of two identical ladder networks SP, SN, the chosen network being dependent on the polarity bit. In the embodiment described for decoding seven bit numbers, constant current generators G1<SP>1</SP>, G16 controlled by the outputs of decoder D2 give outputs which are in a geometrical progression of ratio (k + 1) 1/64 whilst each mesh of the ladder network gives an attenuation of (k+ 1) 1/4 The decoder may be used in an analogue to digital feedback converter in which first the polarity of the analogue signal to be digitized is determined, that is the value of the bit B1, succeeding stages in the register RG then being switched in until coincidence is achieved.
Patent GB-1122892-A (GB)
Title: Liquid fuel evaporation burner
IPC: F23D5/00
Filed: 1967-01-18
Abstract: 1,122,892. Pot burners. SOC. ANON. FONDERIES DU LION. 18 Jan., 1967 [6 May, 1966], No. 2707/67. Heading F4T. A pot burner comprises a dish base 1 supporting an external wall 2, and upper and lower cylindrical members 4 and 6 which define the combustion zone and are retained by annular inserts 3 and 8 and by a rim 2<SP>1</SP>, the wall 2 being formed with holes 10 through which combustion air is supplied to annular spaces 5 and 7 where it mixes with vaporized fuel oil, supplied through pipe 11, before passing into the combustion space via holes 12. Combustion air passing into space 9 flows directly into the combustion space through rows of holes 13 and 14. A catalyst heater is adapted to be supported on rim 16.
Patent GB-116057-A (GB)
Title: Improvements in Artificial Hands.
Inventor: STUBBS JOHN JAMES
IPC: A61F2/58
Filed: 1918-02-15
Abstract: 116,057. Stubbs, J. J. Feb. 15, 1918. Limbs, artificial.-A band comprises flexible or articulated Angers in which are arranged reinforced strips nr wires of ductile metal which will retain the fingers in the position they are caused to assume. The hand may be formed of a wooden palm a with rubber fingers b in which ductile metal wires c are embedded.