baber/WOPTO huggingface dataset:
Patent GB-802458-A (GB)
Title: Chromium complexes of ª¤:ª¤-dihydroxymonoazo dyestuffs of the benzene-azo-naphthalene series
Inventor: REECE CHARLES HUGH
IPC: C09B45/16
Filed: 1956-08-15
Abstract: The invention comprises chromium complexes of o:o1-dihydroxymonoazo compounds of formula <FORM:0802458/IV (c)/1> wherein one R stands for a nitro group and the other stands for a hydrogen atom, which contain from 0.5 to 0.7 atoms of chromium for each molecule of the o:o1-dihydroxymonoazo compound. They are prepared by treating one, or preferably a mixture of both of the monoazo compounds under weakly acid, neutral or alkaline conditions with agents yielding chromium in amounts which give 0.5 to 0.7 atoms of chromium per molecule of monoazo compound. Specified chroming agents are chromium sesquioxide, chromium chloride or fluoride, chromium formate or acetate, mixtures of chromium salts with alkali metal or ammonium salts of tartaric acid and ammoniumoxalato-amminochromate.  The metallization is preferably carried out in aqueous medium at elevated temperatures and in the presence of one or more solvents such as ethyl alcohol, n-butyl alcohol, ethylene glycol, beta-ethoxyethanol, cyclohexanol, dimethylformamide and mono- or di-ethanolamine.  An aqueous alkaline medium containing an alkali metal chromite and glycerol is preferred. The dyestuffs dye wool in olive shades and may also be used to dye silk and synthetic nitrogenous fibres, such as superpolyamides and superpolyurethanes.  The o:o1-dihydroxymonoazo dyes are prepared by coupling a diazotized 4- or 5-nitro-2-aminophenol with 1-propionylamino-7-naphthol.  In an example the mixture of monoazo compounds obtained by diazotizing a mixture of 4- and 5-nitro-2-aminophenols and coupling with 1-propionylamino-7-naphthol is treated with chromium acetate in aqueous ethylene glycol.  The Provisional Specification describes further monoazo dyestuffs and chromium complexes thereof of the above formula, but wherein the propionylamino group is replaced by a carbomethoxyamino or carboethoxyamino group.  An example describes the coupling of diazotized 4-nitro-2-aminophenol with 1-carboethoxyamino-7-naphthol and the preparation of the chromium complex of the resultant monoazo dye.
Patent GB-599538-A (GB)
Title: Improvements relating to garment hangers
IPC: A47G25/40
Filed: 1945-09-26
Abstract: 599,538. Garment hangers. SMITH, F. Sept. 26, 1945, No. 25008. [Class 52(v)] A garment hanger consists of a central support 1 with a garment supporting yoke 2 and a strut, preferably at right angles to the yoke, to spread the garment. In the construction shown the yoke 2 and strut 4 are pivoted to the support 1. More than one strut may be provided.
Patent GB-1047998-A (GB)
Title: Processing apparatus
IPC: G03D5/00
Filed: 1965-06-14
Abstract: 1,047,998. Photographic processing apparatus. EASTMAN KODAK CO. June 14, 1965 [June 15, 1964], No.25040/65. Heading G2A. A film 12 to be processed is held in contact with processing surfaces 38, 40 and rinsing surface 42 by a film-engaging shoe 98 which is supported by levers 102 and 112 arranged to allow retraction of the end of the shoe 98 associated with the processing surfaces before the film is finally released by lifting all of the shoe. It is stated that this procedure ensures that all the developed part of a film is rinsed before the film is finally released from the device. The lever 112 is pivoted to a lever 110 pivoted about a fixed pin 104 and having a follower 114 riding on cam 92. The lever 102 is also pivoted about pin 104 and engages cam 92. The clearance between the shoe and processing surfaces is determined by screw 124. Processing fluids are supplied to the surfaces 38, 40, 42 through holes 20, 22, 24. The film is wiped by a squeegee 56 and two pivoted arms assist in the initial feeding of the film.
Patent GB-800600-A (GB)
Title: Improvements in pressurized clothing equipment for aviators
IPC: A62B18/04
Filed: 1949-09-30
Abstract: 800,600. Pressurized helmets. QUILTER, J. R. C., and REEVES, H. Q. A. Sept. 29, 1950 [Sept. 30, 1949; Feb. 17, 1950], Nos. 25114/49 and 4109/50. Class 81 (2). A pressurized helmet for aviators comprises a flexible oxygen proof liner 11 having a frontal opening 12 with a beaded edge 14, a flexible covering 15 having a frontal opening 16, and a mask 25 with a window 26. Oxygen passes in through the tubes 29 and 30 to the distributing tube 32, and by its pressure causes the edge 14 to be pressed against the face of the wearer and also fills the space 17. Carbon dioxide is exhaled through the valve 34. The liner 11 and the cover 15 are cut away at the top, being joined by adhesive tape 19, a panel 20 being inserted to equalize the pressures on the top and bottom of the helmet. A slit is provided at the back of the helmet, a join in the liner 11 and the covering 15 being made on each side of the slit. A nylon or like covering 39 protects the cover 15 and has a lacing or other fastening means for a back slit. A microphone mouthpiece 35 and earpieces 36 are provided. The space 17 may be divided into compartments by rubber partitions, the stream of oxygen passing through the compartments in series. An internal breathing mask which fits over the nose and mouth and is integral with the mask 25 may be provided. The oxygen inlet or inlets may be in the neck portion.
Patent GB-697432-A (GB)
Title: Improved haulage devices for use in connection with the mining of coal
IPC: B65G37/00
Filed: 1951-10-26
Abstract: 697,432. Mining machines. CHRISTOPH, O. Oct. 26, 1951 [Oct. 30, 1950], No. 25122/51. Class 68(i) [Also in Group XXXI A belt 1 for use in the working of thin coal seams is drawn over the floor of the working by cables 2 attached to its ends and has cutter picks 6, or like coalworking tools, provided on one side. The belt may be formed of, or provided on one or both faces with, a material having a small coefficient of friction, e.g. a material having a polyvinyl chloride base.
Patent GB-491052-A (GB)
Title: Improvements in or relating to furnaces for treating metals
IPC: C21D9/56
Filed: 1937-09-17
Abstract: 491,052. Metal - heating furnaces. HOAK, C. B. Sept. 17, 1937, No. 25246. [Class 51 (ii)] A continuous furnace, more particularly adapted for heating metal strip, comprises a long chamber 9 having heating and cooling actions 14, 15, through which the strip &c. is passed in succession, the heating of the section 14 being effected by L-shaped combustion tubes 16 which alternate with similar cooling- tubes 21 arranged in an inverted position. The cooling-section 15 is similarly surrounded by two sets of cooling-tubes 25, 26, and each of the four sets of tubes is connected to a header and a suction fan. The chamber 9 has reduced necks at the inlet and outlet ends where the strip passes through water seals 32, and also at 10 between the heating and cooling sections. A non-explosive gas is supplied through the pipe 38, and the muffle atmosphere is circulated by a fan 41, withdrawal being effected at the charge inlet end through the water-jacketed cooling- pipe 39, and return through the connection 42 at the charge outlet end. The temperature gradient along the furnace may be controlled by dampers 20, 31 at the outlet ends of the heating-tubes, and the inlet ends of the cooling- tubes respectively.
Patent GB-227193-A (GB)
Title: Improvements in and relating to card indexes
IPC: B42F19/00
Filed: 1923-10-10
Abstract: 227,193. Russell, R. C. Oct. 10, 1923. Index cards. - In a protector for the edges of index cards comprising a piece of resilient material, for example, celluloid, bent on itself to form parallel members 8, 9 between which the lower edge of the card is received, one member 9 is provided between its ends with resilient projections 10 adapted to spring into engagement with a shoulder or slot in the card. The other member 8 may be provided with notches 12 to receive the projections 10 after they have passed through the card. The projection 10 may consist of a single triangular piece, or may be divided into two portions. The protector may be used to hold a supplemental card.
Patent GB-751078-A (GB)
Title: Improvements in or relating to centrifuges
IPC: B04B15/02
Filed: 1954-08-31
Abstract: 751,078. Centrifuges. SANDOZ, Ltd. Aug. 31, 1954 [Sept. 4, 1953], No. 25263/54. Class 23. A centrifuge rotor R having a maximum diameter intermediate its ends is cooled by supplying gas towards both ends of the rotor and by removing the gas from the rotor in a plane containing the maximum diameter. In the construction shown, which is suitable for a rotor speed of 15,000 r.p.m., the gas is ambient air which enters the rotor casing M through apertures C, E and which is discharged through apertures S. The rotor is spaced from its drive motor A by a distance at least equal to half the length of the rotor. At least one fan F driven by the motor may be provided to increase the circulation. In a modification, which is suitable for a rotor speed of 60,000 r.p.m., the gas is hydrogen or helium flowing in a closed circuit, the casing being enclosed by a further casing and cooling elements being provided between the casings or within the inner casing.
Patent GB-650314-A (GB)
Title: Revolving turret and associated driving means for machine tools
IPC: B23B29/24
Filed: 1947-09-16
Abstract: 650,314. Turret-lathes. DELAMAR, H. A. J., AURIOL, C. P. F., and AURIOL, P. L. C. Sept. 16, 1947, No. 25273. Convention date, June 17. [Class 83 (iii)] . A revolving turret and and associated driving means for automatic or semi - automatic machine tools comprises an axially-fixed turret 8 which supports sliding spindles 14, each spindle being moved to working position by a lever 19, which abuts a stop 34a on the spindle, and returned by elastic means, and power transmitting means 13 having a friction clutch 12a which rotates the turret when positioning devices 6c are released. Some of the spindles are rotated by gearing 38 driving planet wheels on the spindles. An electric motor 13c driving through belt gearing 13b rotates both the clutch 12a and the pinion 38. The lever 19 is controlled by a cam 18 on the main camshaft 1 of a lathe. A cam-disc 17 on the shaft 1 carries adjustable stops 2 which act through cranked levers 3, 4 and 6 to withdraw the pawl 6c from a notch 9a in a plate 9 , on the turret. The withdrawal of the pawl rotates a lever 7 having a forked end which moves axially a bush ing carrying a turretrotating worm 11 and a clutch-plate 12 which engages the plate 12a. Rotation of the turret then continues until the pawl 6c engages the succeeding notch 9a. Any of the notches 9a may be covered if a turret position is to be skipped. Means 24, 25 are provided to align the operative spindle 14 with the machine spindle.
Patent GB-970824-A (GB)
Title: Saw chain
IPC: B27B33/14
Filed: 1962-07-02
Abstract: 970,824. Sawing. McCULLOCH CORPORATION. July 2, 1962 [April 20, 1962], No. 25287/62. Heading B5L. A saw chain comprises side links 10 and centre links 11 alternately connected by hinge means 12 disposed on transverse axes, centre cutter elements 29 for cutting a central portion of a kerf in material to be sawn extending vertically outward from selected links, the elements each having a blade portion having a forward transverse cutting edge, side cutter elements 30, 30<SP>1</SP> for widening the kerf portion cut by the centre cutter elements and positioned on opposite sides of the chain on selected links, each element having a blade portion which extends laterally outwardly on its side of the chain and a transverse cutting edge, and depth gauges 36, 36<SP>1</SP> extending outwardly from selected links, the gauges and cutter elements having their outer surfaces lying on arcs 54 of equal radii, the centres of the arcs being correspondingly centrally positioned relative to the hinge axes of the selected links. The centre links have downwardly extending tangs 13 which travel in a groove in a saw bar and engage pockets formed between the teeth of a driving sprocket and a pair of discs one on each side of the sprocket. The centre and side links have extensions 17 forming surfaces 18 for engaging the outer surfaces of the sprocket teeth and the outer surfaces of the discs, respectively, and the side links have curved surfaces 20 for engaging the discs so that the vertical movements of the links are limited and the cutting elements and depth gauges positioned for sharpening by a whetting member in the chain saw engine. The links are assembled in the chain in two sequences. In the first sequence, a centre link 11a has a centre cutter element 29 and is followed by a side link 10a having a right-hand side cutting element 30 and a depth gauge 36. A centre link 11b follows the side link 10a and has a right-hand offset cutting element 38, and this is followed by a side link 10b having a left-hand side cutting element 30<SP>1</SP> and a depth gauge 36<SP>1</SP>. The first sequence is completed by a centre link 11c having a left-hand offset cutting element 38<SP>1</SP> and a side link 10b having a right-hand cutting element 30. The second sequence comprises links and cutting elements in the following order: a centre link having a centre cutting element, a side link having a left-hand side cutting element and a depth gauge, a side link having a left-hand offset cutting element, a side link having a right-hand side cutting element, a centre link having a right-hand offset cutting element, and a side link having a lefthand cutting element. The greatest cutting load is taken by the centre links and cutting elements and these are thicker than the side links. In an alternative embodiment, the tangs 13 may be on the side links and arranged to straddle a bar.
Patent GB-792061-A (GB)
Title: Improvements in or relating to sealing devices for transmitting rotary movement
Inventor: MCGOWAN ERIC
IPC: F16J15/52
Filed: 1955-09-05
Abstract: 792,061. Stuffing-box substitutes. BRITISH THERMOSTAT CO., Ltd. Aug. 23, 1956 [Sept. 5, 1955], No. 25424/55. Class 122 (5). [Also in Group XXIX] A sealing device for transmitting rotary motion to a mechanism, e.g. a screwed valve member 11, within a fluid pressure container 8 comprises a flexible sleeve 1 sealed at one end 2 to the container and at the other end to a driving spindle 3 having a detachable connection with the mechanism, the flexible sleeve being longitudinally deformable to permit the spindle being disengaged from the mechanism at one angular position and re-engaged at a second angular position. The sleeve 1 is of rubber and is secured to the spindle 3 by a cap 5 having a pin 9 engageable with any one of a number of axial slots in a claw plate 10 integral with the valve member 11. In operation, the member 11 is rotated in the diesired direction in a step-bystep manner by partially rotating the spindle 3 by a key 12 movable between two limit pins 14, withdrawing the spindle axially to disengage the pin 9 from the claw-plate 10, partially rotating the spindle in the opposite direction, re-engaging the pin 9 and repeating the operation as necessary.
Patent GB-703579-A (GB)
Title: Improvements in and relating to gate-leg tables
IPC: A47B1/04
Filed: 1951-10-31
Abstract: 703,579. Folding tables. DYKES, Ltd. J., and DYKES, N. Oct. 30, 1952 [Oct. 31, 1951], No. 25472/51. Class 52(3) In a gate-leg table having double gatelegs a sliding member carried by the underside of each hinged leaf is operatively connected to a pair of gate-legs so that by pulling out or pushing in the member both gate-legs are operated in unison. As shown, leaves b, b are hinged to a central fixed top a supported by fixed legs and are supported in horizontal position by double gate-legs d, d each of which has a horizontal rail e carried by a vertical post f pivotally supported between lugs g projecting from a cabinet c formed by the fixed legs. A member j having a handgrip k slides between guides i and is pivoted to a crosss-piece m having slots n which engage pins o projecting from the rails e. In operation a leaf is raised and the member j pulled forward to advance the crosspiece and rotate the gate-legs simultaneously to the leaf-supporting position. In a modification the cross-piece may carry the pins which operate in slots in the rails of the gate-legs.
Patent GB-404403-A (GB)
Title: Improvements in or relating to machines for grinding cylindrical bodies
IPC: B24B5/18
Filed: 1932-09-14
Abstract: 404,403. Centreless grinding. B.S.A. TOOLS, Ltd., Armoury Road, Small Heath, and OGILVIE, W., c/o B.S.A. Tools, Ltd., Montgomery Street, Sparkbrook, both in Birmingham. Sept. 14, 1932, No. 25535. [Class 60.] In a controless grinding-machine the control wheel head comprises a base 1 having a part 2, on a face of which is mounted the housing 3 for the spindle 6 of the control wheel 7. The housing is angularly adjustable, by means of a screw 9, on a curved rib and groove connection 11 on the part 2, and is locked by bolts 4. The part 2 is formed at one end as a part circular hood 12 covering the control wheel, and on ways 13 on the hood is slidable a bracket 14 carrying a horizontally adjustable slide 15 on which is mounted a vertically and rotatably adjustable bar 16 carrying a diamond &c. 17 for trueing the wheel 7 and the grinding-wheel 8, the hood has thereon a cover plate 18 carrying an adjustable bar 19 on which is a guide plate 20, which co-operates with a similar plate 21 adjustably mounted on the grinding-wheel head 25 ; a cover 22 is provided at the other end of the control wheel head for the driving-mechanism 23. The grinding-wheel head may be slidable on, or fixed to the machine bed 24, the control wheel head then being fixed to, or slidable on the bed ; the work may be fed through the machine or shouldered work also may be ground.
Patent GB-370325-A (GB)
Title: Improvements in the process for the separation of wax from wax containing oily substance
IPC: C10G73/06
Filed: 1931-09-11
Abstract: In the separation or purification of wax and the production of oils of low pour point by treatment of the raw material with a mixture of a poor solvent and of a good solvent for wax, followed by filtration, the filtrate is distilled to recover at least a portion of the poor solvent, and the recovered poor solvent is used to purify the wax cake, e.g. by washing or by dissolving and chilling.  The poor solvent is again separated, and is then re-used with the good solvent.  Good solvents specified are benzol, naphtha, carbon tetrachloride, toluene, and xylene; poor solvents are acetone, ethyl, isopropyl, and butyl alcohols, ethylene dichloride, and propylene dichloride.  In an example, 80 lb. of wax distillate is treated with 36 lb. of benzol and 84 lb. of ethylene dichloride, and the mixture chilled to -20 DEG  F. and filtered.  The filtrate is stripped to obtain the solvents and an oil having a cold test of -20-30 DEG  F. The wax cake is dissolved in 60 lb. of the recovered dichloride, chilled to 15 DEG  C., and filtered, the cake being washed with the remaining dichloride and then heated to remove residual solvent.  The whole of the dichloride is then added to the separated benzol which may already be in contact with fresh raw material.  The Specification as open to inspection under Sect. 91 (3) (a) states that the wax precipitated from the mixture of good and poor solvents may be purified by an independent process, the filtrate being fractioned and the poor solvent added gradually to a mixture of the wax-bearing oil and the good solvent.  This subject-matter does not appear in the Specification as accepted.
Patent GB-448414-A (GB)
Title: Improvements in and relating to the vulcanization of rubber
IPC: C08K5/00
Filed: 1934-09-05
Abstract: The vulcanization of rubber is accelerated by the addition of accelerators which contain the grouping <FORM:0448414/IV/1> where n is 1 or 2, R is an alkyl or carbamyl alkyl group, R1 is hydrogen, an alkyl, aralkyl or aryl hydrocarbon radical or a heterocyclic radical such as furfuryl and tetrahydrofurfuryl, and R2 is the same as R1 or an alpha alkacyl radical.  The open bonds are preferably attached to a substituted or unsubstituted ortho arylene group.  Substituents mentioned which may be carried by the arylene group are nitro, halogen, hydroxy, alkoxy and amino.  The compounds may be prepared by bringing together in a solvent a mercaptothiazole or a salt thereof and a halogenated aliphatic acid amide.  Solvents mentioned are water, alcohol and acetone.  In examples: (1) a solution of sodium benzothiazyl-1-mercaptide in acetone is refluxed for \ba1/2\be hour with dichloroacetanilide to yield phenyl carbamyl methyl di-(benzothiazyl 1-sulphide); (2) in a similar manner carbamyl methyl di(benzothiazyl 1-sulphide) is prepared by refluxing in acetone solution sodium benzothiazyl mercaptide, ammonium chloride and dichloroacetamide; (3) carbamyl methyl benzothiazyl 1-mercaptide is made by refluxing ammonium chloride, monochloracetamide, and sodium benzothiazyl 1-mercaptide; (4) phenyl carbamyl methyl benzothiazyl 1-sulphide is made by heating to a temperature below 70 DEG  C. for 45 mins. sodium benzothiazyl 1-mercaptide and chloro-acetanilide in alcohol solution.  A long list is given of alternative mercapto thiazoles and of halogenated aliphatic acid amides which may be used in preparing the accelerators of the present invention.  It is stated that although not invariably necessary, it is desirable to use activators with the accelerators of the present invention.ALSO:The vulcanization of rubber is accelerated by the addition of accelerators which contain the grouping <FORM:0448414/V/1> where n is 1 or 2, R is an alkyl or a carbamy alkyl group, R1 is hydrogen, an alkyl, aralkyl or an aryl hydrocarbon radical, or a heterocyclic radical such as furfuryl or tetrahydro furfuryl, and R2 is the same as R1 or an alpha alkacyl radical.  The open bonds are preferably attached to a substituted or unsubstituted ortho arylene group. Substituents mentioned which may be carried by the arylene group are nitro, halogen, hydroxy, alkoxy and amino.  The compounds may be made by bringing together in a solvent a mercapto thiazole and a halogenated aliphatic acid amide.  It is stated that although not invariably necessary, it is desirable to use activators with the accelerators of the present invention.
Patent GB-857113-A (GB)
Title: Manufacture of resorcinol
Inventor: THOMPSON BERNARD HAMMOND MARKH
IPC: C07C39/08
Filed: 1958-08-08
Abstract: A process for the manufacture of resorcinol by the catalytic cleavage of a reaction mixture containing m-di-isopropylbenzene dihydroperoxide derived from the oxidation of m-diisopropylbenzene, comprises heat decomposing the material less volatile than resorcinol while passing steam through said material, simultaneously distilling off the additional quantities of resorcinol and the m-isopropenyl phenol so formed and recovering the resorcinol from the aqueous distillate while maintaining the pH of the latter at a value of at least 4.  The pH may be maintained at a value of at least 4, preferably 4-7, by adding a 30% aqueous solution of ammonium sulphate to the cleavage reaction product so as to bring its pH to about 3. This mixture is then distilled to remove acetone and hydrocarbons and the residual aqueous solution distilled in the presence of steam. During this distillation ammonia formed by dissociation of the ammonium sulphate passes over into the distillate and maintains its pH at at least 4.  Alternatively ammonium sulphate or a volatile base such as ammonia or an organic amine may be added to the aqueous solution of resorcinol prior to distillation in the presence of steam, or ammonia may be added directly to the distillate.  The maintenance of pH at least 4 is said to reduce the tendency of the m-isopropenyl phenol and resorcinol to combine together to form high boiling by-products.  A comparative example is given where an aqueous solution of resorcinol of pH 2,2 is steam-stripped to give an aqueous distillate of pH2,8 and where the solution is first neutralised with ammonia to pH 3,9 and then steam-stripped to given an aqueous distillate of pH 4,9 from which improved yields are recovered.