baber/WOPTO huggingface dataset:
Patent GB-710705-A (GB)
Title: Improvements in alkylene polyamino polycarboxylic acids
Filed: 1951-06-11
Abstract: The invention comprises compounds having the structural formula <FORM:0710705/IV (b)/1> in which M is H, NH4, K, Na or an amine, n is 0, 1 or 2, alkylene is ethylene, propylene, butylene, or trimethylene when R is an alkyl group containing 7 or 8 carbon atoms or is butylene when R is an alkyl group containing from 9 to 18 carbon atoms. They may be prepared by reacting an alkyl halide RX, in which X is a halogen, with a molar excess of an alkylene polyamine, in which the alkylene group is ethylene, propylene, butylene or trimethylene and there are from 2 to 4 nitrogen atoms, in solution at elevated temperature, distilling off the excess alkylene polyamine and treating the reaction product with chloracetic acid in alkaline solution at an elevated temperature. The products are stated to be detergents.  For example ethylene diamine is dissolved in aqueous alcohol and heated; n-octyl chloride dissolved in alcohol is added, the alcohol, solvent and excess ethylene diamine are distilled off and caustic soda is added and the mono - hydrated mono - N - n - octylethylene diamine is precipitated, dehydrated, distilled and then dissolved in aqueous alcohol.  Sodium chloracetate and free alkali are added to this solution and the mixture is heated, and evaporated until it crystallizes.  The crystals are dissolved in hot water and caustic soda is added to give the tri-sodium salt of mono-N-n-octyl ethylene diamine N,N1-triacetic acid of formula <FORM:0710705/IV (b)/2> The sodium in the compound may be replaced by ammonium or potassium.  Instead of ethylene diamine any alkylene polyamine in which the alkylene group is propylene, butylene or trimethylene and containing not more than 4 nitrogen atoms may be used.  In the examples: (a) mono-N-n-heptyl ethylene diamine is reacted with sodium chloracetate dispersed in butyl alcohol, alkali being added so that the pH is not below 9 to 10; the mixture is neutralized with anhydrous hydrochloric acid and mono-N-n-heptyl ethylene diamine is obtained; (b) mono-N-(2-ethyl)-hexyl-ethylene diamine is reacted as in (a) with sodium chloracetate to give mono-N-(2-ethyl)-hexyl-ethylene diamine N,N1-triacetic acid; and (c) propylene diamine is reacted in aqueous alcohol solution with n-octyl chloride, the mixture is heated and the alcohol removed by distillation; the residue is treated with sodium hydroxide to liberate mono-N-n-octyl propylene diamine which is dissolved in tertiary butanol; potassium iodide and sodium chloracetate are added and the pH of the solution is maintained between 9 and 10 by the addition of sodium hydroxide, the mixture is heated and acidified to give the free mono-N-n-octyl propylene diamine N,N1-triacetic acid.
Patent GB-746042-A (GB)
Title: Improvements in the production of styrene halohydrins and homologues thereof
Filed: 1953-05-18
Abstract: Halohydrins of styrene and its homologues are made by reacting styrene or a homologue thereof with an aqueous solution containing halogen ions and hydrogen ions in the presence of a water-soluble oxidizing agent.  A preferred oxidizing agent is hydrogen peroxide, but organic peroxides, permanganates, chromium trioxide, bichromates, peracetic acid, chloric acid and perchloric acid also are referred to.  Aqueous solutions of hydrohalic acids are suitable sources of hydrogen and halogen ions.  In examples (1) hydrogen peroxide is added to an aqueous solution of hydrochloric acid and styrene to give styrene chlorohydrin; (2) styrene is treated with hydrobromic acid, sulphuric acid and potassium permanganate to give styrene bromohydrin; (3) styrene is similarly treated with hydrobromic acid and peracetic acid; (4) styrene is treated with hydrobromic acid and hydrogen peroxide; (5) styrene is treated with aqueous sodium bromide, sulphuric acid and hydrogen peroxide to give styrene bromohydrin, which may then be reduced to phenylethyl alcohol by the process of Specification 699,062; (6) styrene is treated with water and bromine, more styrene is added, followed by hydrogen peroxide; and (7) 4-methylstyrene is treated with hydrobromic acid and hydrogen peroxide to yield 4-methylstyrene bromohydrin, which may then be reduced as in Specification 699,062 to 4 - methylphenylethanol. Specification 746,043 also is referred to.
Patent GB-360420-A (GB)
Title: Improvements in cartridge belt filling machines
IPC: F42B39/10
Filed: 1930-05-06
Abstract: 360,420. Cartridge-belt filling machines. FRENCH, G. F., Chester Road Mills, Manchester. May 6, 1930, No. 13852. [Class 92 (ii).] Relates to machines for continuously feeding cartridges into the pockets of fabric cartridge belts and of the kind comprising a reciprocating slide 11 (see plan, Fig. 2) arranged below the cartridge feed shoot 2b, the slide pushing the cartridges into the pockets of the belt as it passes between notched wheels 9 which advance it step by step. The machine is operated by rotating a hand-driven shaft 5 carrying cranks or cams which reciprocate the slide 11, rotate the notched wheels 9, and operate a reciprocating pilot rod 19 which opens the belt pockets from their narrower ends. According to the invention, lag of the narrower ends of the pockets is prevented either by slightly inclining the pilot rod or by providing a horizontal bellcrank lever 33, one arm of which engages an inserted cartridge, the other arm being operated from the slide 11 by means of a spring-controlled bar 34. In the machine shown, the cartridges from the shoot 2b pass into a rocking carrier 3 operated by the slide 11, a projection 11a on the slide pushing a cartridge partly into a pocket, the insertion being completed by a projection 11b. The narrower ends of the pockets are opened by pivoted tongues 26, 29 between which the pilot rod 19 passes, as shown in Fig. 5, to separate the ribbed edges of the belt and hold them in recesses x in the members 25, 28 on which the tongues are pivoted. The upper member 25 is carried by a presser-plate 24 which can be readily raised to the position shown in dotted lines in Fig. 4 against the action of a spring 27 which serves to hold the plate both in the raised and lowered positions. The upper notched wheel 9 is carried by a rocking arm for ready release and is pressed against the belt by a spring 31 retained by a hook 32,
Patent GB-110775-A (GB)
Title: Improvements in or relating to Carburetters for Internal-combustion Engines.
Inventor: MORGAN WILLIAM
IPC: F02M1/00
Filed: 1916-09-30
Abstract: 110,775. Morgan, W., and Mills, W. Sept. 30, 1916. Spray carburettors; vaporizers, external.-Two fuel-spraying orifices are employed one of which delivers fuel, as is usual, in the direction in which the air is flowing, the other orifice being situated at a lower level and facing or substantially facing the current of air so that it is not subject to suction created by the velocity of the air. A carburettor and a vaporizer having such an arrangement of fuel orifices and adapted for use separately or in combination are described. The carburettor, which may.be supplied with petrol, comprises a nozzle a delivering into the choke tube b in the direction of the current of air which is controlled by a suction-actuated valve d, and a second fuel orifice e, at a lower level, which faces the air current and is subject only to the negative pressure controlled by the valve d. The vaporizer portion, which is adapted for use with paraffin or the like, comprises an exhaust jacket f which communicates with the interior of the vaporizer through a chamber k, filter l, and valve j, and nozzles a<1>, e<1> of which e<1> faces the current of air or inert gas admitted by the valve j. The vaporizer communicates at g with the constricted portion of the choke tube b<1>, the flow of air through which is controlled by a suction-actuated valve d'. The air to the valves d, d<1> may be heated by the exhaust pipe n. A valve p may connect either or both of the forms of apparatus to the engine induction pipe o.
Patent GB-1415465-A (GB)
Title: Humidity indicator
IPC: G01N27/04
Filed: 1973-03-23
Abstract: 1415465 Measuring humidity electrically DIXI SA 23 March 1973 [14 April 1972] 14030/73 Heading G1N A humidity indicator comprises a pair of electrodes 8, 9, a relaxation oscillator 16, Fig. 1, and an alarm device 7 arranged in a portable case 14, 15. When the humidity of material, e.g. earth, between the electrodes falls below a predetermined value, the oscillator provides pulses to energize the alarm device 7.
Patent GB-110908-A (GB)
Title: Improvements in Electric Couplings.
Inventor: VALETTE HENRI DE LA
IPC: H01R4/32
Filed: 1917-09-28
Abstract: 110.908. La Valette, H. de. Nov. 3, 1916, [Convention date]. Couplings. - For fixing an electric cable 10 to a socket 1 the bared ends of the conducting-wires 11 are bent over a metal cap or thimble 13 applied to the end of the cable, the socket being then slipped over the wires and the parts secured together by a rivet 14 extending through the socket, the cap and the cable end. In the Specification as open t) inspection under Sect. 91 (3) (a) Specification 105,227 is referred to. This reference does not appear in the Specification as accepted.
Patent GB-333215-A (GB)
Title: Improvements in or relating to circuit arrangements for frequency transformation
IPC: H03B19/16
Filed: 1929-05-06
Abstract: 333,215. Dicker, S. G. S., (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). May 6, 1929. Frequency, changing; arc and spark-gap apparatus, vacuum or low-pressure apparatus, arrangements of.-In means for obtaining, under the control of primary oscillations, secondary oscillations of lower frequency by superimposing a unidirectional voltage upon the primary voltage so that a condenser 3 is caused to discharge periodically through a circuit comprising a glow discharge lamp 2 as described in Specification 296,829, the battery used in the former case is dispensed with, the required D.C. component being obtained from the A.C. supply source 7, 8 by inserting a rectifier 6 in the charging circuit of the condenser. This circuit includes the usual resistance 5; an impedance 9 is provided in the discharge circuit. Reference has been directed by the Comptroller to Specification 256,606.
Patent GB-855296-A (GB)
Title: Improvements in or relating to rotary pumps and motors
IPC: F04C2/344
Filed: 1958-05-02
Abstract: 855,296. Rotary pumps and motors. WAHLMARK, G. A. May 2, 1958, No. 14059/58. Class 110 (2). A rotary pump or motor having outwardly-sliding radial vanes is provided with a flexible vane ring 30 which has thickened portions 34 engaged by displaceable rocker arms 36 and intermediate portions supported by projections 51 integral with the housing 32, the pressure differential across the rocker arms serving to flex the normally cylindrical vane ring into an elliptical member to thereby vary the displacement of the unit. The unit is also provided with an axiallyflexible plate 88 having arcuate grooves 92 connected by passages 94 to a compensating zone 96. The end-plate 100 is provided with an annular groove 114 establishing communication between the vane slots and the outlet conduit 110 and is also provided with a passage 118 for feeding leakage fluid along the shaft 12 to the inlet conduit 106. For design details the Specification should be referred to.
Patent GB-501190-A (GB)
Title: Improvements relating to the production of subtractive colour photographs
IPC: G03C7/30
Filed: 1937-05-20
Abstract: 501,190. Colour photography, GROVES, W. W. (I. G. Farbenindustrie Akt.-Ges.) May 20, 1937, No. 14064. [Class 98 (ii)] Material for the production of subtractive multi-colour pictures comprises a number of silver halide emulsion layers each containing a colour-former for colour development fast to diffusion, in which the red-sensitized layer has a sensitized range of about 500 to 670 mÁ with a maximum at about 580 to 630 mÁ, the blue-sensitive layer is sensitive in a range of about 400 to 480 mÁ with a maximum at about 430 to 460 mÁ, and the green-sensitized layer is sensitized in a range of about 460 to 610 mÁ. with a maximum at 540 to 555 mÁ. The layers may be on one or both sides of the support. The material may be processed by simple development or by reversal. A filter layer for absorbing ultra-violet light may be arranged above the top emulsion layer. Specifications 427,472, 436,587, 458,400,465,823, 468,946, 479,838, 481,501, 483,000, 483,548, 481,698, 488,853, 489,093, 489,161, 489,164, 489,274, and 489,845 are referred to. The Provisional Specification describes also the production of the colour pictures by the silver dyestuff bleaching out process or by the anti-diazotate process.
Patent GB-710599-A (GB)
Title: Improvements in or relating to cutting machines
IPC: B26D1/28
Filed: 1952-06-04
Abstract: 710,599. Cutting machines. PALFREY, Ltd., W., and VOJTECHOVSKY, A. June 4, 1952, No. 14152/52. Class 31 (1) A machine for cutting material fed continuously ' therethrough comprises a control member movement of which operates the cutting means, the arrangement being such that when material is fed to the machine so that an edge of the material encounters the control member the cutting means is caused to cut the material at a particular position relative to said edge. In the machine shown, the cutting means comprises a plurality of blades 12A which cooperate successively with the edge 28A of a pivotally-mounted spring-pressed shear plate 28, the blades being rotated stepwise by means of a pawl 16, Fig. 3, and ratchet wheel 13, the pawl being mounted on a spring-influenced bar 6 to the upper end of which is secured an armature 5 co-operating with a solenoid 2. The latter is in series with a micro-switch 39 having a. cranked operating lever '40 with which cooperates a pin 42 projecting from a collar 41 on a shaft 33 which carries a hollow arm 34 to which is adjustably secured a slide 35 forming the control member. A block 21 secured to the bar 6 prevents the .ratchet wheel from being rotated more than one tooth pitch at each energization of the solenoid. A feed channel 24 is secured to a flange 25 at one side of the machine and extends from the rear of the machine to near the front thereof. In operation, the material, which is in the form of a bag 45, Fig. 5, having secured thereto a strip 48 the ends of which are to be trimmed, is fed into the channel 24 from the rear side of the machine. The bottom of the strip encounters the web 24B of the channel. As the bag is fed towards the front of the machine, the end 48B of the strip passes over the shear edge 28A between two adjacent blades 12A. The leading edge 45B of the bag encounters the lower end of the slide 35 whereby the pin 42 is turned through a small angle in a clockwise direction. The arm 40 is therefore moved to the left to cause the microswitch 39 to close and then immediately back again causing the switch to open. Energization of the solenoid during this short period causes the next blade 12A to be turned to co-operate with the shear edge 28A to cut off the end 48B of the strip in line with the leading edge 45B of the bag. The latter is fed continuously through the channel and when the edge 45A passes under the lower end of the slide 35, the latter drops on to its supporting ledge 38. This causes the pin 42 to move through a small angle in an anti-clockwise direction. The switch 39 is again closed for a short period so that the solenoid is again energized. The next blade 12A is therefore turned to co-operate with the shear edge 28A and cut the end 48A of the 'strip in line with the trailing edge 45A.
Patent GB-736796-A (GB)
Title: Improvements in or relating to axial-flow fluid machines such as axial-flow compressors and turbines
Inventor: FLETCHER ARTHUR HOLMES
IPC: F01D17/16
Filed: 1952-06-04
Abstract: 736,796. Turbines and compressors. ROLLSROYCE, Ltd. May 13, 1953 [June 4, 1952], No. 14155/52. Classes 110 (1) and 110 (3). In an axial-flow turbine or compressor having a plurality of stator blades of aerofoil section, each of the stator blades is divided longitudinally into parts, the trailing part being mounted for angular adjustment relative to the leading part of the blade, and the leading parts being fixed in an outer supporting member and adapted or arranged by their inner ends to support other parts of the stator structure between two rotating parts of the machine. The gas turbine engine shown comprises two rotor stages 11, 14, a series of inlet nozzle guide vanes 10 and a row of interstage nozzle guide vanes 13 which are constructed in accordance with the invention. The guide vanes 13 each comprise a non-adjustable leading part 19a and an adjustable trailing part 19b. The leading part 19a is formed with integral shroud portions 20a, 21a. The outer shroud portions are adapted to engage in a main support ring 17 which is secured to the main outer casing part 41a. The inner shroud portion carries a mounting ring 29 to which is secured an annular diaphragm 35, the stator portion 37 of a labyrinth seal 12a, 37a being secured to the diaphragm. The shroud portions 20b, 21b of the trailing portions 19b of the guide vanes are formed separate from the vanes and are clamped to the mounting ring 29 and the main support ring 17 respectively by means of clamping rings 32, 24 and bolts 31, 23. The inner and outer ends of the trailing portions 19b are provided with spindles 34, 25 which engage in the shroud portions 20b, 21b, the spindle 25 carrying at its outer end a lever arm 27 by which the trailing portion may be adjusted. Each lever arm 27 carries a pin 38 which engages a block 39 slidable in a notch in a coupling ring 40. The coupling ring is provided with four radial pegs 42, each of which engages a lever arm 44 secured to a spindle 45 rotatable in the main outer casing, each spindle 45 carrying at its outer end a lever 46, one end of one of the levers 46 being connected to an actuating ram 51, operation of the ram causing rotation of all the spindles 45 simultaneously by means of the links 50, levers 49 and idler spindles 48. The leading parts 19a of the guide vanes may be formed with cooling fluid ducts.
Patent GB-1493527-A (GB)
Title: Measurement and control of fluid flow
IPC: G05D7/06
Filed: 1975-04-07
Abstract: 1493527 Measuring fluid-flow and viscosity J L SPENCER and R I PEARLMAN 7 April 1975 [7 May 1974] 14164/75 Heading G1N The rate of flow of fluid through a conduit 10 (Fig. 1) is measured by the current required for electromagnets 13, 14 to raise a ferromagnetic ball 11 against the fluid-flow force and gravity from a rest position P i  on a stop element 12. At the start of the test a current generator 18 is energized to feed an increasing current to the electromagnets 13, 14. When the ball 11 leaves the stop element 12 a light beam from source 15 passes through the transparent conduit 10 to reach a detector 16, which causes a logic circuit 17 to sample the instantaneous value of the energizing current and send a corresponding signal to a read out device 19. A digital mode for measuring the energizing current is also described. The ball 11 may be stainless steel, or plastic or glass with a soft iron core. The movement sensor 15, 16 may alternatively be a variable capacitor or inductor altering the frequency of an oscillator, or strain gauge elements attached to the stop element 12, or the ball and stop elements may be used as switch contacts. In another embodiment Fig. 4 for increasing fluid viscosity, the flow-rate is maintained constant and the movable member 111 is specially shaped to maintain laminar flow, whereby the energizing current required to move member 111 is a measure of the fluid viscosity.
Patent GB-1522908-A (GB)
Title: Fiat-bed knitting machine
IPC: D04B15/32
Filed: 1976-04-07
Abstract: 1522908 Knitting machines UNIVERSAL MASCHINENFABRIK DR RUDOLPH SCHEIBER KG 7 April 1976 [9 April 1975] 14203/76 Heading D1C Stitch cam 7 is held during traverse of the carriage by clamping member 2 urged by spring 5 attached to lever 4 which carries member 2 and is released by a pin 8 on the end of lever 4 engaging a ramp 9. As the carriage crosses the stitch length adjusting mechanism, a chamfered face 10 on the upper edge of stitch cam 7 will ride across an actuating pin 11 on a lever 12, the lower edge 14 of the cam 7 being biassed against face 15 of ramp 16. Ramp 16 is carried on slide 17 mounted on pins 18, 19 slidable in bearings 20, 21 and biassed downwardly by a spring 22. Preceding each cam system in the carriage is a cam face 23 which on crossing the stitch length adjusting mechanism lifts slide 17 with ramp 16 to its uppermost position. Fixed to slide 17 is an angle piece 25 carrying set screws 26 to 33 of different lengths which can be held to select different stitch length settings by nuts 34. Associated with each set screw 26-32 is a stop lever biassed into slot by a spring while screw 33 is associated with a fixed stop 52. A solenoid 38 is associated with each lever 35 so that it can force this lever out of its slot 36 for it to intercept its associated screw 26 to 32 when slide 17 drops at the end of cam face 23. Screws 26 to 33 are alternately long and short so that levers 35 are disposed in staggered bands. Pointers 48, 49 are moved on scales 50, 51 to indicate the setting of stitch cams.
Patent GB-611855-A (GB)
Title: Improvements in or relating to cabinets, boxes and the like
IPC: A47B96/16
Filed: 1946-05-10
Abstract: 611,855. Cabinets. MICHELIN, H. M. JMay 10, 1946, No. 14204. [Class 52(i)] In a cabinet having a pair of superposed drawers or trays 2, 3 the lower drawer is connected to a roll shutter 5 which also forms the back of the cabinet and the front edge of the shutter when closed engages beneath the edge of a curved front wall 4 of the cabinet. The slats of the shutter may be transparent.
Patent GB-1524155-A (GB)
Title: Field sequential colour television camera arrangements
IPC: H04N9/07
Filed: 1976-04-08
Abstract: 1524155 Colour television ELLIOTT BROS (LONDON) Ltd 9 March 1977 [8 April 1976] 14210/76 Heading H4F A field sequential colour television camera such as an image isocon has a colour filter, Fig. 2, which can be rotated in front of the image receiving face of the camera and has a gating arrangement whereby the electron image is only allowed to fall on the storage electrode for a part of each field, whilst a single segment of the filter covers the target.
Patent GB-495809-A (GB)
Title: Improvements in or relating to burners for viscous fuels
IPC: F23D11/40
Filed: 1937-05-21
Abstract: 495,809. Liquid - fuel burners. KILBURN, B. E. D. (Sulzer FrÞres Soc. Anon.) May 21, 1937, No. 14244. [Class 75 (i)] The viscous fuel-injection nozzle 2 is mounted in a preferably water-cooled member 5 which is displaceable axially in the main air inlet passage 3 to vary simultaneously the air discharged and the inclination of the air-guiding blades 6. The displacement of the member 5 causes it to rotate slightly owing to the engagement of a pin 12 in an inclined slot 11 in a housing 15 and causes the blades 6 to rotate on their axles 10 by the engagement of pins 18 on the blades with slots 17 in a bushing 13 which moves axially with the member 5 but cannot rotate in the housing 15. Additional air is directed in streams towards the fuel issuing from the nozzle 2 by a grating 9 covering an air chamber connected by passages 8 in the member 5 to the air passage 3. On removing the pin 12, independent adjustment of the member 5 or blades 6 may be effected.