baber/WOPTO huggingface dataset:
Patent GB-758165-A (GB)
Title: Compounds containing an isophthalate group useful in photography
IPC: C07K1/00
Filed: 1954-08-30
Abstract: The invention comprises compounds useful as colour couplers having the general formula: <FORM:0758165/IV(a)/1> wherein R is H or alkyl, Y is H, CH3. or alkali metal, and Z is an aromatic radical connected to a group containing a coupling function.  As values of Z are mentioned: (1) an aryl radical connected to the 3-position of a 1-alkyl-5-pyrazolone or a 1-aryl-5-pyrazolone; (2) a benzene ring containing a 2,4-di-tert-amylphenoxy substituent; (3) a benzene ring connected to the carbon atom of a -CO.NH-group, the nitrogen of which is connected to the group containing a coupling function; (4) a benzene ring connected to a -COCH2.CONH-aryl group. They are made by condensing a compound of the formula: <FORM:0758165/IV(a)/2> with an amine Z-NH2, preferably in presence of an acid binding agent and an organic diluent.  The compounds may be incorporated in photographic silver halide emulsions or photographic developers containing primary aromatic amino developing agents, e.g. an alkylated phenylene diamine.  In examples, 3,5-dicarbomethoxyphenoxy acetyl chloride is reacted in anhydrous acetic acid or in acetonitrile with amines of the following formul : <FORM:0758165/IV(a)/3> (prepared by condensing ethylene diamine with phenyl - 1 - hydroxy - 2 - naphthoate, and condensing the amide with 2(2:4-di-tert.-amylphenoxy) - 5 - nitrobenzoyl chloride, and reduction of the nitro group; <FORM:0758165/IV(a)/4> (prepared according to Specification 737,103). <FORM:0758165/IV(a)/5> (prepared by condensing 4-amino-2.6-dichloro-m-cresol with 4-(21.41-di-tert.-amylphenoxy)-3-nitrobenzoyl chloride and reduction of the nitro group). <FORM:0758165/IV(a)/6> (prepared by condensation of sodium 2.4-di-tert.-amyl phenate with o-chloronitrobenzene, reduction, condensation with ethyl p-nitrobenzoylacetate and again reduction).  Also in examples 3.5-dicarbomethoxyphenoxy butyryl chloride is reacted with amines of the formul  <FORM:0758165/IV(a)/7> (prepared by condensing 4-amino-2.6-dichloro-m-cresol with 2-(21.41-di-tert.-amylphenoxy)-5-nitrobenzoyl chloride and reduction). <FORM:0758165/IV(a)/8> <FORM:0758165/IV(a)/9> Other products are listed as prepared similarly.  3.5-Dichloroformyl phenol is prepared from 3.5-dicarboxyphenol and thionyl chloride. 3.5-Dicarbomethoxyphenol was prepared from 3.5-dichloroformyl phenol and methanol.  3.5-Dicarbomethoxyphenoxyacetic acid and 3.5-dicarbomethoxyphenoxybutyric acid are prepared from 3.5-dicarbomethoxyphenol and bromacetic acid or bromobutyric acid in methanol in presence of sodium methoxide.  Specifications 562,205, [Group IV], and 737,112 also are referred to.
Patent GB-467161-A (GB)
Title: Process for the manufacture of derivatives of 3.17-diols-of the cyclopentano polyhydrophenanthrene series
Filed: 1935-09-09
Abstract: 17 - Mono - derivatives of 3 : 17-diols of the cyclopentanopolyhydrophenanthrene series are obtained by subjecting di-derivatives of the above diols other than di-esters in which the 3-(OH) group is replaced by a substituent which is relatively easily hydrolyzable and the 17-(OH) group is replaced by a substituent which is relatively difficultly hydrolyzable, to a hydrolysis in which the substituent on the carbon atom 3 is converted into the hydroxyl group, while the substituent on the carbon atom 17 is left substantially unaffected.  Suitable mixed di-derivatives can be obtained by treating selected 3-mono-derivatives prepared for example by reducing derivatives of corresponding 3-hydroxy-17-keto compounds with esterifying, etherifying, or halogenating agents.  As examples of substituents which are easily reconvertable into the hydroxy group on hydrolysis there are mentioned aliphatic carboxylic acid radicals having a straight chain of carbon atoms, such as acetic acid.  As examples of more difficultly hydrolyzable groups there are mentioned acylating agents with branched chains, such as compounds of iso-butyric acid, iso-valeric acid, substituted and unsubstituted benzoic and naphthoic acids, chlorsulphonic acids, chloroformic acid, and phenylisocyanic acid.  In examples: (1) Androstendiol - 3 : 17 - monotriphenylmethyl ether-3 obtained from dehydroandrosterone - triphenylmethyl ether by reduction, is acetylated with acetic anhydride and hydrolyzed with N-sulphuric acid to yield the 17-monoacetate of androstendiol-3 : 17; (2) androstendiol - 3 : 17 - monoacetate - 3 obtained by hydrogenating dehydroandrosterone acetate is converted into androstendiol - 3 : 17 - monoacetate - 3 - triphenylmethyl ether - 17 by treatment with triphenylmethyl chloride, and hydrolyzed to the 17 - triphenylmethyl ether of androstandiol - 3 : 17.  Instead of triphenylmethyl ether these may be used in the above examples the diphenylmethyl ether, the p-toluyl - diphenylmethyl ether, or the methoxy - methyl ether; (3) 3 - acetoxy-17-chlorandrosten is hydrolyzed in methyl alcoholic potassium hydroxide to give 3-hydroxy-17-chlor-androsten.  Specification 464,396 is referred to.
Patent GB-492559-A (GB)
Title: Improvements in portable gas-cutting and like machines
IPC: B23K37/02
Filed: 1937-09-16
Abstract: 492,559. Portable gas cutting &c. machines. LINDE AIR PRODUCTS CO. Sept. 16, 1937, No. 25138. Convention date, Oct. 7, 1936. [Class 83 (iv)] A portable blowpipe apparatus for welding, flame cutting, &c. comprises a blowpipe steering and driving unit U, Fig. 2, a wheeled carriage C for supporting the unit in operative relation to a working surface S, a traction wheel W for moving the carriage, rotatable about its own axis and about the axis of .the blowpipe, and manually operable means for steering said unit. The blowpipe B is mounted for vertical adjustment in a ball-bearing head at the apex of a triangular frame, and steering is effected by a hand wheel H. The lower end of the rotatable steering unit has an extension 56 to which is bolted a bracket 74 which carries a driving motor M. speed reduction and controlling unit 78, 79, driving gearing (including a pair of spring-connected gears for taking up backlash), and starting and stopping means for the traction wheel W. The other two apexes of the triangular frame are provided with castor wheels 19, Fig. 1, which may be free to swivel, or may be fastened in predetermined positions. a similar arrangement being provided for the steering head. The castor wheels may have grooved side parts 23 to run on template rails and an auxiliary supporting ledge 105 is provided underneath the bracket 74 to support the machine should the traction wheel run off the work. A radius rod 107 and spring-pressed centre 112 is provided for cutting &c. circles. A rest 35 is provided on top of the frame to steady the hand in operating the steering wheel. and a box 33, Fig. 1, is provided at one end of the machine for storing tools &c.
Patent GB-1314132-A (GB)
Title: Adaptive numerical control system for a machine tool
IPC: G05B19/416
Filed: 1971-04-19
Abstract: 1314132 Programmed control of milling machines BENDIX CORP 19 April 1971 [30 March 1970] 25168/71 Heading G3N In a numerically controlled milling machine control system, Fig. 1, under the control of program on magnetic tape 18, there is included an adaptive controller 32, detailed in Fig. 2, which ensures that both the speed of spindle 14, and the chip load (i.e. the feedrate per revolution of cutter 12) are incremented at successive time intervals, in steps proportional to their respective instantaneous values, until at least one of the following machine constraints is violated:- Maximum allowable machine torque, vibration, chip load, spindle speed, or feedrate is exceeded. Minimum allowed values of spindle speed and chip load are also imposed, and, in the event of loss of contact between cutter 12 and work 16, the chip load assumes an impact value, until contact is restored. The machine thus works at maximum efficiency consistent with no constraint violations, see Fig. 9 (not shown). Response to constraint violations: - If the maximum value of:- (i) chip load, (ii) spindle speed, (iii) torque, (iv) vibration (v) feedrate, is exceeded the (i) spindle speed is increased and further increase in chip load prevented, (ii) chip load is increased and further increase in spindle speed prevented, (iii) chip load is decreased, (iv) spindle speed is decreased, (v) both spindle speed and feedrate are decreased, respectively. If the torque falls below a pre-set minimum indicating loss of contact between tool and work, chip load takes the impact value, and spindle speed its minimum value, chip load reverting to its minimum value immediately upon resumption of contact. Adaptive Controller, Fig.2. The strategy logic unit 52 receives the constraint values, actual values of torque and vibration from sensors 38, and the commanded values of chip load and spindle speed, as stored in register (80), (100) Figs. 4, 5 (not shown), and feedrate, formed by multiplying the preceding two quantities together in the feedrate generator 58, see also Fig.6 (not shown), and outputs signals commanding either increase or decrease in the values of chip load and spindle speed to unit 54. The IPM (inches per minute) logic unit 62, see also Fig. 7 (not shown) ensures that pulses from the controller 24 to servos 26-30 result in movement of the workpiece at the commanded feedrate. To ensure that the torque constraint is not violated, the unit 54 also calculates a theoretical value of torque, on the basis that torque and chip load are proportional, Fig.5 (not shown). The method of generating the instantaneous quantity proportional increments in chip load and spindle speed is disclosed. The control system includes squaring circuits to ensure that the combined cutter movement produced by X, Y and Z servos, Fig.1 (not shown) is in accordance with control values.
Patent GB-269475-A (GB)
Title: Improvements in driving mechanism for the spindles of spinning machines
IPC: D01H1/242
Filed: 1926-10-11
Abstract: 269,475. Rabert, J. S. April 14, 1926, [Convention date]. Spindle - driving apparatus; spindle rails. - Spinning- spindles are driven by means of a split tube 9, 9<1>, which is interposed between the tapered end 5 of the spindle and a tube 8 secured to an extension 10 of the driving - worm 14, and engages friction. ally therewith at the points 27, 25, 25<1>. Fig. 2, the arrange. ment being such that, when the motion of the spindle is arrested, the friction between the then stationary parts 9, 9' and the tube 8 heats the latter and causes it to expand whereby it ceases to contact with the parts 9, 9'. The worm is mounted on a ball 13 and in ball bearings 12 carried by a tube 17 secured by means of a nut 16 to a casing 1. The gears are mounted in a casing 23 integral with or attached to a longitudinal frame 7. The parts are lubricated from a receptacle 28.
Patent GB-925917-A (GB)
Title: Process for the preparation of olefinic compounds containing two or more double bonds
IPC: C07C2/86
Filed: 1961-07-12
Abstract: Olefinic compounds containing two or more double bonds are prepared by heating an olefinic compound containing one or more double bonds with a dihalocarbene in the vapour phase.  The dihalocarbene may be allowed to form in situ, e.g. form a haloform or trihalogen acetic acid, particularly from CHCI3 or CCI3, CO2H at 300-600 DEG C.  The reaction components are preferably diluted with an inert carrier gas, e.g. nitrogen.  In examples: (III) cycloheptatriene and toluene were obtained from cyclohexene and chloroform at 450 DEG C. and similarly (V) vinylcyclohexene, indane and indene were obtained from butadiene.ALSO:Olefinic compounds containing two or more double bonds and in which one or more unsaturated carbons may be bound to halogen, are prepared by heating an olefinic compound containing one or more double bonds with a dihalocarbene in the vapour phase.  The dihalocarbene may be allowed to form in situ, e.g. from a haloform or trihalogen acetic acid in the vapour phase, particularly from CHCl3 or CCl3CO2H at 300-600 DEG C.  The reaction components are preferably diluted with an inert carrier gas, e.g. nitrogen.  In the examples: -(I) 3-methyl-2-chlorobutadiene was obtained from isobutene and chloroform at 450 DEG C.; and similarly (II) 2-chlorobutadiene was obtained from propene, 2-methyl-1 : 1-dichlorocyclopropane also being isolated; and (IV) 2-chloro-3-p-chlorophenyl- 1:3-butadiene from p-chloro-alphamethylstyrene.  Butenes, pentenes, hexenes, styrene, alphamethylstyrene, cyclopentene, hexadecene and allyl chloride are other specified starting materials.
Patent GB-993972-A (GB)
Title: Improvements in or relating to devices suitable for bending glass objects
IPC: C03B23/06
Filed: 1961-07-13
Abstract: <PICT:0993972/C1/1> <PICT:0993972/C1/2> A device for bending a heated straight glass tube into a circular shape comprises means for holding the tube 1 (Fig. 7) at its upper end in a vertical position, the opposite end being secured to the periphery of a bending roller 23, which is rotatable in a yoke 24.  The yoke is moved vertically so that the tube is wound on to the roller 23.  Vertical movement of the yoke is effected by endless chain 22 counterweighted at 25.  Attached to the counterweight is a connecting rod 26 pivoted to junctionpiece 41 carried by endless chain 27.  Chain 27 moves in the direction indicated by arrow 40 over wheels 28, 29 driven by motor 32, until connecting rod 26 reaches the lower position shown and switch 56 is actuated to switch off the motor.  As the motor slows down an abutment on chain 27 contacts stop 54 to positively stop the assembly.  The wound glass tube is then removed from roller 23 and the parts restored to their original positions by moving lever 53, which removes stop 54 from the path of chain 27 and actuates switch 62 to restart the motor, which runs until counterweight 25 and detent 57 actuates switch 64 to switch off, so completing the cycle.  The whole bending mechanism, indicated by 12 in Fig. 4, is mounted on a carriage 18.  After the tube is heated the oven is displaced to one side.  During heating and bending, nitrogen may be passed into the tube.  Means are also provided for limiting the elongation of the tube during heating.
Patent GB-846083-A (GB)
Title: Improvements in or relating to electrical capacitors
IPC: H01G4/228
Filed: 1955-09-05
Abstract: 846,083. Capacitors. DUBILIER CONDENSER CO (1925) Ltd., DUBILIER, W., and COURSEY, P. R. Sept. 5, 1956 [Sept. 5, 1955], No. 25416/55. Class 37. A capacitor comprises metallised strips A 1 of PTFE or like fluoro-carbon material, each having a generally central fold D 1 (Fig. 1), sandwiching in contact with the metallised surface C<SP>1</SP> a projecting metal foil strip B <SP>1</SP>, the fold D <SP>1</SP> of each dielectric strip extending to or nearly to the edges opposite the fold of the dielectric strip A<SP>2</SP> sandwiching the foil B<SP>2</SP> of opposite polarity. Polychlortrifluoroethylene may be used instead of PTFE. Aluminium deposition may be used with aluminium foil or silver coating with copper or silver-plated copper foil. The preferred embodiment comprises two strips overlapped as in Fig. 1 and wound on a ceramic tube having metallised ends to which the inner layers of projecting foil are soldered. End caps (Figs. 4, 5) having a tubular projection J2 are attached by soldering through the slots J <SP>1</SP>. Stacked capacitors may be made by transverse zig-zag folding or by cutting the strips into short lengths. Casings. Fig. 6 shows a casing, which may be hermetically sealed, comprising an insulating tube K to which are fixed metal ends L having an annular rib to locate a metal tube N into which the projection J<SP>2</SP> may engage to provide support and connection for the winding. Alternatively, the end-caps J may be dispensed with if contact is made between the metallised end of the ceramic tube and the annular rib. Space is left for circulation of a cooling medium such as a low loss silicone compound having high dielectric strength. Multiple units., Fig. 7 shows three seriesconnected capacitors mounted in a casing comprising a metal base Q<SP>2</SP> soldered or otherwise hermetically sealed to an insulating cover P. The base forms one terminal. Connections are made by metal tubes N; the upper capacitor makes contact with a terminal Q The tubes N are perforated to allow the cooling fluid to flow through the ceramic tube on which each capacitor is wound. Alternative intermediate connectors R may be carried by insulators R I attached to the inner walls of the case. A filling plug Q4 is provided in the base.
Patent GB-1471632-A (GB)
Title: Flexible metal hose with an adaptor to be mounted on a tap
IPC: F16L37/48
Filed: 1975-06-13
Abstract: 1471632 Metal hose adaptors J TANDRUP 13 June 1975 25418/75 Heading F2G An adaptor 3 for coupling a metal hose 1 with a tap comprises a collar 4 for engagement with the tap, the adaptor having a throat 8 in which is located a metal sleeve 2 by means of flanges 9, the metal sleeve being soldered or glued to the metal hose 1 and also serving to locate an inner tube 5 within the hose 1 by means of a compressible ring 6 and an inner metal bushing 7 between which is wedged the end of the inner tube 5. The bushing is preferably of brass and the ring 6 and inner tube 5 of polyvinyl chloride.
Patent GB-836466-A (GB)
Title: Improvements in or relating to structural units
IPC: E04B7/10
Filed: 1957-08-12
Abstract: 836,466. Building units; joining metal sheets; transparent sheets; floors &c. KAISER ALUMINUM & CHEMICAL CORPORATION Aug. 12, 1957 [Jan. 7, 1957], No. 25423/57. Classes 20(2), 20(3), 20(4) and 87(1) A structural unit for building roofs, ceilings, walls, domes &c., comprises a diamond-shaped or square sheet 1 of aluminium, synthetic plastics, glass &c., bowed about its axis M-M, the corners 4, 5 on the other diagonal axis N-N being connected by a hollow strut 6. The sheet is creased along lines 12, 13 radiating from the corners 2, 3 respectively, and marginal flanges are provided as at 7, 8. The units are so assembled to form a substantially plane wall &c., or a geodesic dome that the struts form a framework of hexagons, Fig. 4, or other regular polygons. Each set of six units is connected at a common vortex by a member 20, Figs. 4, 6, each unit being secured to one spoke 42 of the member 20 by bolts or rivets engaged in registering openings 50, 50<SP>1</SP> in the unit and spoke respectively. The flanges of adjacent units are connected by engaging bolts or rivets in openings 52 or by applying a sealing compound or by welding, and the struts also are connected to one another. Additional triangular units 20<SP>1</SP>, Fig. 4, with or without a strut along one edge may be used to complete the structure.
Patent GB-467779-A (GB)
Title: Apparatus for charging shaft buckets
IPC: B66B17/26
Filed: 1936-09-18
Abstract: 467,779. Charging skips. DEMAG AKT.-GES. Sept. 18, 1936, No. 25456. Convention date, Sept. 18, 1935. [Class 78 (iv)] In the charging of a skip 3 from a bunker 1, a sector-shaped member 6 positioned by a ram 7 is used to bridge the space between the end of the fixed shoot 2 and the skip. By this construction, the end 6b of the member can be adjusted in relation to the skip, while the space between its other end and the end of the fixed shoot 2 remains constant.
Patent GB-389517-A (GB)
Title: Improvements in the removal of pyridine or other nitrogenous bases from phenols
IPC: C07C37/86
Filed: 1931-09-11
Abstract: Basic substances containing nitrogen such as ammonia, aniline, pyridine and its homologues and quinoline are removed from phenols containing them by converting the basic substances into their salts with mineral acids or difficultly volatile organic acids the phenols then being distilled off.  Suitable acids are sulphuric, phosphoric, hydrochloric, hydrobromic and benzene or naphthalene sulphonic acids. The basic salts may be recovered by extracting the residues of the distillation with water and the base may be liberated by means of basic solutions such as caustic soda solutions or milk of lime or by passing in ammonia.  In examples, (1) the crude phenol prepared according to Specification 359,681 is mixed with sulphuric acid and distilled under reduced pressure.  From the residue further phenol may be recovered by dissolving the salts of basic substances by water and the crude bases may be recovered from the solution by passing aqueous ammonia into the solution.  (2) A crude phenol obtained by extracting low temperature carbonization liquids with tricresyl phosphate is treated with sulphuric acid.  (3) A mixture of phenol and pyridine is distilled under reduced pressure in the presence of benzene-sulphonic acid.  (4) Phenols obtained by the extraction by benzene of waste water used for washing coke oven gases is distilled under reduced pressure with phosphoric acid.
Patent GB-639043-A (GB)
Title: Grinding machine for sharpening twist drills
IPC: B24B3/24
Filed: 1946-08-27
Abstract: 639,043. Grinding twist drills. RUOLLE, M. A. Aug. 27, 1946, No. 25556. Convention date, March 4, 1942. [Class 60] A machine for sharpening twist drills comprises a drill chuck A mounted by means of a ball-and-socket joint B in a support C adjustable relative to a grinding-wheel Y. An extension A<SP>1</SP> of the chuck passes through an eccentric guide slot E<SP>1</SP> in a plate E and also through a slot D<SP>11</SP> in a member D which is in screw-threaded engagement with the support C. The plate E is also in screw-threaded engagement with the support and may be rotated for adjustment purposes by a handle U extending through a slot in the support and co-operating with a scale V. The extension A<SP>1</SP> carries index members G; G<SP>1</SP> and may be rotated about its own axis by a handle T to engage either member in a groove F in the rear face of the member D. The chuck A and extension A<SP>1</SP> are urged forwardly by a spring S interposed between the chuck and a bearing sleeve W in the slot E<SP>1</SP>. In operation, the index member G is engaged in the groove F, the plate E adjusted to give the required variation of clearance angle, the support C adjusted to bring the tip of the drill up to the grinding-wheel and the member D rotated by a handle D<SP>1</SP> to swing the chuck about the centre of the joint B, the inclination of the drill axis during the swinging movement being varied by the guide slot E<SP>1</SP>. The chuck is then rotated through 180 degrees to engage the index G<SP>1</SP> in the groove and the operation repeated on the other edge of the drill. The machine also comprises a second grinding-wheel Y<SP>1</SP> for grinding the flutes of the drill, which during this operation is supported in a chuck H rotatably mounted in a bracket I, adjustable towards and away from the grinding- wheel. The chuck has two indexing grooves spaced 180 degrees apart which may be.engaged by a locking device K.