baber/WOPTO huggingface dataset:
Patent GB-761303-A (GB)
Title: Copying device for machine-tools
IPC: B23Q35/18
Filed: 1954-08-30
Abstract: 761,303. Copy-milling. BONDY SOC ANON. Aug. 30, 1954 [Sept. 3, 1953], No. 25134/54. Class 83 (3). [Also in Group XXIII] A copying-machine-tool for milling, planing or grinding comprises a feeler 2a controlling a servomotor 6, 14 to move a tool-head or table 10, the direction of movement of a wedgeshaped movable part 6 of the motor being at an angle to the movement of the tool-head or table 10. The work 11 on the table 10 is carried past the stationary-tool 4 by a slide 1. A wedge-guide 5 is fixed to the slide 1 and the table 10 slides vertically thereon on guides 5b. As the tracer 2a controls the supply of fluid to the wedge-shaped cylinder 6, so the cylinder 6 is moved up or down the guide 5 to control the depth-of-cut.
Patent GB-472510-A (GB)
Title: Slide tubes for trombones and similar instruments
IPC: G10D7/10
Filed: 1936-09-16
Abstract: 472,510. Trombones &c. OLDS, R. B. Sept. 16, 1936, No. 25245. [Class 88 (ii)] The stationary inner tubes 13 of a trombone &c. slide have polygonal exteriors which form longitudinal corners 25 bearing on the inner surfaces of the outer tubes 19 of the slide, and pockets 24a for lubricant. Stockings are provided on the outer ends of the inner tubes 13.
Patent GB-1412084-A (GB)
Title: Method of wrapping a stack of coins
IPC: B65D75/02
Filed: 1973-05-25
Abstract: 1412084 Wrapping a stack of coins GLORY KOGYO KK 25 May 1973 [6 June 1972] 25269/73 Heading B8C A stack of coins is wrapped by feeding a sheet of uniaxially drawn, high density polyethylene film in its drawn direction, winding the sheet around a stack of coins, and folding the edges of the sheet inwardly to form a peripheral rim at each end of the stack. Coins from selecting and counting mechanisms 2 and 3 are stacked in a tube 4 closed at the bottom by a shutter mechanism 5. A support 15 lowers the stack to between rollers 10-12 and on to another support 9 when the mechanism is opened. The rollers are moved together and rotated to wrap the sheet around the stack. A knife 22 cuts the sheet from a web at feed rollers 20, 21. Levers 24, 25 are moved towards each other so that hooks 27, 28 on the ends fold the sheet edges inwardly. The package can be opened by tearing the wrapper along a line extending circumferentially around the stack.
Patent GB-1101410-A (GB)
Title: Polyurethane prepolymers
IPC: C08G18/10
Filed: 1966-06-07
Abstract: Polyurethane prepolymers which may be cured to form polyurethanes are prepared by reacting one mole of a polyglycol of M.W. 500-5000 with at least 1.5 moles of a diisocyanate to form an isocyanate-terminated prepolymer having more than 0.5% of unreacted diisocyanate and distilling the crude prepolymer thus formed under reduced pressure at a temperature below 225 DEG  C. to obtain a prepolymer containing no more than 0.5% of unreacted diisocyanate.  The polyglycols may be polyethers or polyesters, especially poly(ethylene adipate) glycol. Conventional diisocyanates are used and the prepolymer may be cured with glycols or diamines.
Patent GB-860644-A (GB)
Title: Mechanism for stopping a rotating power-driven drum
Inventor: FRANKERT OTTO PEDER
IPC: B02C17/24
Filed: 1957-08-12
Abstract: 860,644. Ball mills. SMIDTH & CO., A. S., F. L. Aug. 12 1957. No. 25404/57. Class 59 [Also in Group XXXVII] A mechanism for stopping a rotating power-driven ball mill drum in a predetermined but variable position comprises a cam constructed to rotate with the drum and a switch adapted when operated to cut off the supply of power to the drum, the switch being carried by a support in which it can be manually set in any required position in relation to the axis of the drum for engagement by the cam during the rotation of the drum. As shown mechanism 16, Fig. 1, for stopping a ball mill drum 1 provided with one or more manholes for charging and discharging purposes is mounted on and around a torsion shaft 10 mounted between couplings 8, 9 which together with a reduction gear 6 and coupling 7 form a driving gear through which the drum 1 is driven from an electric motor 4. The mechanism 16 comprises a fixed ring 17a, Fig. 2, which surrounds the shaft 10 and has slidably mounted on a flange 21 thereof a plate 22 having pivotally mounted thereon at 25, Fig. 3, a plate 26 which carries a switch 29 having a rocking arm 30 provided with a roller 30a for engagement by a cam 20 formed on a two-part ring 18 secured around the shaft 10. The plate 26 may be fixed in one or other of two end positions, in one of which, Fig. 5, the switch roller 30a is clear of the path of the cam and in the other of which, Fig. 3, the switch roller is in the path of the cam, by means of a spring-loaded pin 28 which engages one or other of two holes 27a, 27b in the plate 22. The plate 22, which is secured in any desired position along the ring flange 21 by means of a screw 24, carries a pointer 23 co-operable with a scale on the ring 17a. The switch 29 is in series with a normally-open manual switch 15, Fig. 1, in the circuit of the motor 4. The mechanism may, alternatively, serve to cut off the oil supply to a diesel engine driving the mill drum, without the use of any electric switch.
Patent GB-303044-A (GB)
Title: Process for the manufacture of substituted guanidines
IPC: C07C277/08
Filed: 1927-09-26
Abstract: 303,044. Carpmael, A., (I. G. Farbenindustrie Akt.-Ges.). Sept. 26, 1927. Substituted guanidines are obtained by treating a substituted thiourea with an organic or inorganic zinc compound and ammonia or a salt or substitution product of ammonia in the presence of a small quantity of caustic alkali or alkaline earth at an elevated temperature. The oxide, hydroxide, chloride, sulphate, formate or carbonate of zinc and aliphatic, aromatic or heterocyclic amines or hydrazines, such as benzyl-, methyl-, dimethyl-, or diethyl-amine, aniline, piperidine, phenylhydroxylamine or phenylhydrazine may be used. In examples (1) diphenylguanidine is obtained by heating under pressure thiocarbanilide, ammonia, zinc hydroxide and calcium hydroxide; (2) triphenylguanidine by heating thiocarbanilide, aniline, zinc sulphate and caustic soda lye; (3) diphenylbenzylguanidine from thiocarbanilide and benzylamine; (4) diphenylmethylguanidine from thiocarbanilide and methylamine; (5) diphenyldimethylguanidine from thiocarbanilide and dimethylamine; (6) triphenylaminoguanidine, together with a red azo compound produced by oxidation of this compound, from thiocarbanilide and phenylhydrazine; (7) triphenyloxyguanidine from thiocarbanilide and phenylhydroxylamine.
Patent GB-1151887-A (GB)
Title: Improvements in Sewing Machines.
IPC: D05B57/02
Filed: 1966-06-08
Abstract: 1,151,887. Sewing machines. UNION SPECIAL MACHINE CO. 8 June, 1966 [30 June, 1965], No. 25438/66. Heading D1G. A sewing machine comprises a looper carried by a rod extending transversely of the direction of work feed and arranged to be reciprocated and oscillated for imparting loop seizing and shedding, and needle-avoiding movements to the looper, the blade or beak of which is arranged substantially parallel to the axis of the rod, and manually-operable means for partially disconnecting the looper from the rod to afford free movement of the looper longitudinally of the rod. Threaded loopers 24, 25, co-operating with respective needles 23, 23a, are releasably carried by a sleeve 26 mounted on a rod 27 extending transversely to the direction of work feed. A plate 38, slidably mounted on sleeve 26, may be depressed manually against spring bias to free sleeve 26 for rightwards movement on rod 27 to a looper-threading position. Rod 27 is keyed to a sleeve 31 journalled in fixed bearings 32. An arm 53, rigid with sleeve 31, is pivoted to a pitman 51 actuated by an eccentric on the bed shaft 12 for oscillating rod 27 to impart needle-avoiding movements to the loopers. Rod 27 is also coupled to one arm 45a of a bell crank lever, the other arm 45 of which is coupled by a for reciprocating rod 27 to impart loop taking pitman 43 to a crank pin 12a on shafts 12 and shedding movements to the loopers, the blades of which are parallel to rod 27. A member 54, formed with guide surfaces 54a for the needles 23, 23a, is adjustably secured to a member 55, one end of which is forked to embrace shaft 12 and the other end of which is pivoted on a pin 56. The latter is fixed to one end of an arm 57 pivoted at its other end on a fixed pin 59. Arm 57 is coupled by a pitman 61 to an eccentric on shaft 12, and is thereby oscillated to move the surfaces 54a into and away from needle-engaging positions.
Patent GB-361435-A (GB)
Title: Improvements in or relating to methods of and apparatus for the production of foam
IPC: A62C5/00
Filed: 1930-08-26
Abstract: 361,435. Foam making. PYRENE CO., Ltd. and BEDFORD, H. E., Great West Road, Brentford, Middlesex. Aug. 26, 1930, No. 25447. [Class 47 (ii).] A foam-generating apparatus wherein water supplied under pressure to a hopper for dry chemicals washes down a sludge or suspension of the chemicals to an ejector arranged below the open bottom of the hopper, comprises a hopper 2 arranged in a casing 1. A pipe 6 controlled by a valve 9 supplies water to an ejector 4, 5 and also to the hopper by a pipe 7 with a valve 13 and a downwardly-directed nozzle 8. A curved plate 3 arranged across the bottom of the hopper prevents dry chemicals from falling down to the ejector, and the space above the ejector is connected to atmosphere by a pipe 14. The ejector delivers the foam to a pipe 12 provided with a non-return valve 11. A byepass pipe, not shown, for water is arranged between the pipes 6 and 12, and is controllable by means of a valve. The hopper has a cover 18 and a charging opening 17 from which a pipe 19 leads outside the apparatus to near the base thereof to carry away dust arising during charging of the hopper. A valved pipe 20 leads from the pipe 6 to a flexible hose 22 that can be used for washing out the apparatus. The hopper may contain a mixture of foam chemicals, or may be divided for separate chemicals, in which case two nozzles 8 are provided. In a modification, the outlet at the bottom of the hopper, and the pipe 7, are provided with non-return valves designed to prevent water from passing to the hopper in the event of an obstruction in the foam pipe 12. The same result may be achieved by the provision of a diaphragm valve in the pipe 6. The pipe 14 may be extended outside the apparatus to carry away residual foam generated after the water supply has been shut off. In another modification, the ejector 4, 5 is arranged vertically. Specifications 256,245 and 320,913, [both in Class 47 (ii), Fire-extinguishing &c.], are referred to.
Patent GB-815092-A (GB)
Title: Improvements relating to refrigerating systems
IPC: F25B9/00
Filed: 1955-09-06
Abstract: 815,092. Refrigerating. GENERAL ELECTRIC CO. Sept. 6, 1955 [Sept. 30, 1954], No. 25541/55. Class 29 In a compression refrigerating system embodying two refrigerants miscible at condenser temperatures and co-existing in two immiscible phases 14, 15 of different thermodynamic properties and density at evaporator temperatures, the refrigerants are fed from a receiver 13 at condenser temperature to an expansion valve 23 whence they pass through evaporator 20 in a receiver 17 and main evaporator 22. The refrigerants are also fed through pipe 18 from a receiver 13 to receiver 17 and are there cooled by evaporator 20 so that they separate into the two phases 14, 15 These phases are selectively fed by valve 26 actuated in accordance with the load on the system into the main liquid refrigerant pipe either upstream or downstream of the expansion valve. The refrigerants may be the same as those described in Specification 811,713.
Patent GB-1098407-A (GB)
Title: Improvements in or relating to methods of an apparatus for determining the sulphur and halogen content of organic materials
IPC: G01N31/12
Filed: 1965-06-16
Abstract: 1,098,407. Chemical analysis. F. EHRENBERGER, S. GORBACH and K. HOMMEL. June 16, 1965 [June 16, 1964], No. 25548/65. Heading B1X. The extinguishing of the oxy-hydrogen flame between combustion operations in the treatment of an organic substance in the flame to determine its sulphur and halogen content is prevented by providing a multichannel cock H1 between the absorption bulb A2 - A9 which is connected to the oxy-hydrogen burner B1 and an interchangeable flask A11 into which the reaction gases contained in an absorption solution introduced at A4 flow for final analysis. The substance under analysis is placed in container B2 and heated externally by a Bunsen burner, the vapours therefrom passing to the combustion chamber A2 which is under the action of the oxy-hydrogen flame, the oxygen and hydrogen 'being fed through meters S2 and S3. The reaction vapours are condensed at A3 and are then mixed with the absorption solution before passing through a plurality of perforated bases A5 and a fine pored frit A7 to the flask, the entire apparatus including the flask being under vacuum through connection A8.
Patent GB-1275176-A (GB)
Title: Multi-stylus recording assembly
IPC: H04N1/29
Filed: 1970-05-28
Abstract: 1275176 Selective printing XEROX CORP 28 May 1970 [2 June 1969] 25630/70 Heading B6F An electrographic printer comprises an endless band 8 supporting at least one recording head comprising a dielectric body 20, a plurality of conductive styli 22 for contacting a recording medium 2, and resilient brushes 18 which engage a fixed plate 38 and urge the band 8 into sliding contact with a support plate (42, Fig. 2) located adjacent the inner surface of the belt. The plate 38 includes conductive commutator bars 40 which supply signals to the syle 22 via the brushes 18. The styli 22 are formed on a circuit board which may be urged against the recording medium 2 by a spring 24. The recording medium 2 may be fed continuously, and the band 8 correspondingly inclined to a direction perpendicular to the edges thereof.
Patent GB-1062058-A (GB)
IPC: B23B5/12
Filed: 1964-06-22
Abstract: 1,062,058. Machine tools. H. LINDEMANN. June 22, 1964 [June 25, 1963; April 24, 1964 (2)], No. 25711/64. Headings B3B, B3C and B3T. A machine for scalping a non-rotating rod 1 fed axially comprises a cutter head 4 mounted on a tubular shaft 5 supported by bearings 6, rod-guiding means 11, 13 resiliently mounted at each side of the head, one of the guiding means being surrounded by one of the bearings, and a further bearing 14 surrounding the rod between the cutter head and one guiding means, the further bearing having one race 17 secured to the support 19 for one of the guiding means and the other race 15 being secured to the cutter head. The gear 9 on the cutter-carrying shaft 5 is rotated by a chain or a turbine. Clearance in the bearings 14, 6 is taken up by a spring urging the support 19 towards the cutter head. The guiding means 11, 13 may be replaced by rollers. In a modification, the cutter head 3, Fig. 2 (not shown), is supported by a resilient element 26. The outer race of the bearing 14 is attached to a sleeve 7 and/or the member 27 carrying the guiding means 13. A second bearing may be inserted also as in Fig. 1 (not shown). In a further modification, the support 19, Fig. 3 (not shown), can be moved axially by a lever 24 to move a conical sleeve 20 to adjust the cutter diameter.
Patent GB-1255406-A (GB)
Title: A warehousing system
Inventor: HATHCOCK JAMES SHOFFNER
IPC: B65G1/04
Filed: 1969-05-20
Abstract: 1,255,406. Subtracting circuits; selective signalling. CONCO Inc. 20 May, 1969 [26 March, 1969], No. 25712/69. Headings G4A and G4H. In a system for automatically positioning the load moving device 36, Fig. 1, of an automatic warehouse system, photo-electrically derived 55 (see also Fig. 3) signals P, Fig. 4, representing the position of the device are subtracted, in parallel, from command signals C representing the desired position of the device, and when the device is at a certain distance from its desired position its speed is reduced until the desired position is reached when it is stopped. Binary-coded decimal signals representing the actual position of the device are produced by photo-electric cells 61, Fig. 3, carried by the device, light to these cells from lamps 60, also carried by the device, being interrupted by a pattern of plates 55. A further plate 70 carrying a reflective strip 74 is provided to produce a pulse in a combined lamp and cell 72 when the device is in such a position that the cells 61 produce meaningful signals. Parallel subtraction of the position signals P from the command signals C is effected by a relay circuit, Fig. 5, in which only the circuit for bits " 1 " and " 2 " is shown in detail. The numbers C and P are registered on relays HC1, HC2, HC4, ... , and HP1, HP2, HP4, ... , not shown. In the circuit for the " 2 " bit, a relay D2 is controlled to indicate the result for that bit, and a relay B2 to indicate whether any " borrowing " is necessary from the next higher stage. Thus, the circuit for the " 2 " bit includes contacts of a relay B1 which is energized if the " 1 " bit stage has to borrow.
Patent GB-1198568-A (GB)
Title: Discharge Tube.
IPC: H01J17/49
Filed: 1968-05-29
Abstract: 1,198,568. Glow discharge lamps; cathoderay tubes. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 29 May, 1968 [1 June, 1967; 29 Sept., 1967], No. 25715/68. Heading H1D. A discharge tube includes first and second systems of elongated conductors 4, 5 or 14, 15 which cross each other and are held relative to each other by an insulating plate 1 or frame 11 of anodically oxidized aluminium which is apertured near the cross-points of the conductors. In Fig. 1 the strip electrodes 4 and 5, which form a cross-bar addressing system in a gas discharge display tube, are formed by metallization of the plate 1. In an alternative arrangement (Fig. 2, not shown) transparent metal strip electrodes are applied to two glass plates the borders of which are stuck by enamel to a glass frame surrounding the plate 1. In Fig. 4 the wires 14 and 15, which may form control and screen grids in a cathode-ray tube, are supported in grooves 12 and 13 of different depths in a frame 11 having a single large aperture 16. In a modification of this arrangement, forming a display device, the wires are supported in grooves of different depths in a plate having an aperture adjacent each cross-point.
Patent GB-689211-A (GB)
Title: Improvements in or relating to the control of motorised valves
Inventor: SHERLOCK JOHN EDWARD
IPC: F16K31/05
Filed: 1950-10-24
Abstract: 689,211. Positive clutches. BRITISH THERMOSTAT CO., Ltd. Aug. 15, 1951 [Oct. 24, 1950], No. 25879/50. Class 80 (ii). [Also in Group XXIX] A motor driven valve comprising an electric motor 8, Fig. 1, driving a valve stem 13 through a worm 6, a worm wheel 7 and gearing 17, 9, 10, 11, has an over-riding manual control including a clutch connecting the worm wheel 7 and pinion 17, operable manually should the current supply to the motor fail, whereby the stem may be moved by a hand-wheel 22. The clutch comprises balls 15, 15<SP>1</SP>, Fig. 3, held in recesses 14, 14' in the central bore of the worm wheel by a rod 18 connected to the wheel 22. The balls are carried in radial holes 16, 16' in a part of the pinion which projects into the bore. To disengage the clutch, the rod 18 is pushed against a spring 23 until projections 24 engage slots 25 in the pinion 17 and a reduced part 26 of the rod is brought adjacent the balls. By turning the wheel 22, the pinion 17 will move the gears 9, 10, 11 and stem 13 while the balls will fall out of the recesses 14, 14'. On resumption of the current supply and release of the wheel 22 the motor will rotate the worm wheel until the recesses 14, 14<SP>1</SP> are aligned with the balls, and then the spring 23 will force the balls outwardly to re-engage the clutch and disengage the projections 24 from the slots 25. The stopping and starting of the motor may be controlled thermally.
Patent GB-604281-A (GB)
Title: Improvements in or relating to methods of oxidizing relatively long chain unsaturated fatty bodies
IPC: C11C3/00
Filed: 1944-12-27
Abstract: Relatively long chain unsaturated fatty bodies are oxidized to relatively short chain saturated fatty bodies by treating with a solution made by electrolyzing an aqueous solution containing at least 7 per cent sulphuric acid, and 15-35 per cent chromium sulphate to liberate hydrogen and convert 40-75 per cent of the chromium sulphate to chromic and sulphuric acids.  Animal or vegetable oils having substantial unsaturated components, fatty materials having lower unsaturated content, fatty acids obtained from such materials, esters of unsaturated fatty acids, and unsaturated synthetic fatty products may be treated.  A preferred oxidizing solution is a 50-60 per cent regenerated solution derived from an original solution containing 1 part chromic anhydride, 2 parts sulphuric acid, and 4 parts water.  After use it is again regenerated by electrolysis for re-use.  The hydrogen produced may be used to harden other unsaturated fats.  The sulphuric acid concentration in the spent solution should not exceed 20 per cent and is 10-15, preferably 12-13 per cent for highest yields and minimum voltage for regeneration. Reaction temperature is usually 5-100 DEG , preferably 75-90 DEG  C. The reactants are mixed by stirring and separated by gravity settling or centrifuging, preferably below 40 DEG  C. or the separated spent solution is cooled below 40 DEG  C. to remove organic material.  The oxidizing solution may be added in portions, withdrawal of separated spent solution being effected before addition of the next portion. Oleic acid gives azelaic and pelargonic as well as other shorter chain fatty acids, triolein yields pelargonic acid and mixed glycerides, rape seed oil fatty acids give pelargonic, brassylic and shorter chain acids, while methyl, ethyl, propyl or like esters of oleic acid yield pelargonic acid, the half esters of azelaic acid, and shorter chain fatty acids.  The products are treated with sulphuric acid to remove chromium, washed free from acid, and pelargonic acid separated by distillation.  The azelaic acid can then be separated from other acids by washing with hot water in such amount that the azelaic content is not above about 10 per cent, and the solution crystallized or evaporated.  In examples, a spent solution of percentage composition chromium sulphate 26.9, sulphuric acid 12.2, and water 60.9 is fed to the cathode chambers of a series of continuous cells with lead electrodes and ceramic diaphragms and electrolysed at 24 amps./sq. ft. anode current density to 50 per cent conversion, the solution leaving the anode chambers having the composition: chromic anhydride 6.77, chromium sulphate 13.2, sulphuric acid 21.9, and water 58.1 per cent.  This is used for oxidizing: (1) oleic acid, yielding chiefly azelaic and pelargonic acids; (2) cottonseed fatty acids, giving chiefly pelargonic, palmitic and dibasic acids; (3) methyl oleate to pelargonic and azelaic acids and a neutral ester; (4) teaseed oil to pelargonic acid and azelaic acid triglyceride.