baber/WOPTO huggingface dataset:
Patent GB-850971-A (GB)
Title: A process for melt spinning or melt extruding polyethylene terephthalate to form threads, fibres, bristles or films
IPC: D01D1/04
Filed: 1957-07-25
Abstract: Polyethylene terephthalate is melt-spun or extruded to form threads, films and like products by melting the polycondensate in a melting chamber by means of a flowing stream of a chemically inert organic liquid which is not miscible with the melt and the boiling point or initial boiling point of which is higher than the melting point of the polycondensate and the specific gravity of which is less than that of the polycondensate at the temperature of the melt in the melting chamber, the inert liquid being <PICT:0850971/IV(a)/1> heated to a temperature above the melting point of the polycondensate and thereafter continuously fed into the lower portion of the melting chamber and caused to flow upwardly through the melting chamber in countercurrent to the poly-condensate, which in a solid particulate or comminuted form is continuously fed into the top of the melting chamber, the inert liquid being discharged from the melting chamber through a lateral duct or outlet in the upper part of the chamber, and a pool of the molten polycondensate being allowed to collect in a sump or reservoir at the bottom of the chamber, from which pool molten polycondensate is continuously withdrawn and pumped to one or more spinnerets or extrusion heads.  The heating liquid is preferably a mixture of open-chain aliphatic hydrocarbons and non-aromatic cyclic hydrocarbons having a boiling range between 290 DEG C. and 340 DEG C. and a specific gravity at room temperature of 0,8 to 0,9, obtained by fractional distillation of a crude petroleum followed by treatment of the crude distillate fraction thus obtained to remove unsaturated hydrocarbons and substantially all of any aromatic hydrocarbons originally present in the fraction.  Alternatively the heating liquid may be similarly obtained from crude lignite tar.  As shown, suitable apparatus for melting the poly-condensate consists of a cylindrical or slightly frusto-conical melting chamber 1 having a conical base 2 which functions as a melt container and is provided with a discharge pipe 3 for the melt and a stop valve 4.  The melting chamber is heat-insulated and the conical base may be either heat-insulated or, as shown, may be provided with a jacket 5 through which the heating liquid is passed from the heater 6 and feed pipe 7 en route to the melting chamber via the pipe 8, 10.  Comminuted solid polydensate is continuously fed into the top of the chamber 1 while the heating liquid flows upwards through the chamber from the small inverted funnel inlet 10 to a discharge pipe 9 which returns the liquid to the heater 6.  An electrode 11 responsive to the level of the melt in the conical base 2 automatically operates a valve controlling the rate of circulation of the heating liquid through the melting chamber.  The process and apparatus of the invention reduce or prevent decomposition of the polycondensate in the melt pool.
Patent GB-615813-A (GB)
Title: Improvements relating to apparatus for use with molten glass
IPC: C03B5/167
Filed: 1946-08-09
Abstract: A crucible for containing molten glass comprises a core of molybdenum, tungsten or an alloy (e.g. 1 : 1) of these two metals covered with platinum or a platinum-rich alloy (e.g. with rhodium, 4 : 1 or 9 : 1).  The core material may include an inert grain growth inhibitor such as thoria.  The covering, e.g. 0.025 inch thick, may be swaged onto the core.
Patent GB-789290-A (GB)
Title: Improvements in or relating to electrical resistors
IPC: H01C1/082
Filed: 1956-08-01
Abstract: 789,290. Grid resistors. BATCHELLOR, J. R. (Akt.-Ges. Brown, Boveri & Cie). Aug. 1, 1956, No. 23726/56. Class 37. Resistors, particularly for motor control, are assembled from thin strips 1 of resistance metal rolled into arcuate transverse section. A number of strips are disposed parallel to one another and connected in series by straps 2 to form a grid. A number of such grids are assembled one upon the other with alternate grids reversed thus allowing cooling air to take a free course such as that shown by arrows A.
Patent GB-875487-A (GB)
Title: Improvements in cold-cathode stepping tubes
Inventor: CROWTHER GERALD OFFLEY
IPC: H01J17/48
Filed: 1957-07-26
Abstract: 875,487. Multi-gap cold-cathode tubes. MULLARD Ltd. May 7, 1958 [July 26, 1957], No. 23754/57. Class 39(1). In a cold-cathode stepping tube as described in Specification 875,484 comprising a central disc-shaped electrode surrounded by a circular row of rod-shaped outer electrodes and at least one marker electrode so arranged that the breakdown voltage between the central electrode and the marker electrode is greater than that between the central electrode and the said outer electrodes, the said marker electrode is positioned a greater distance from the central electrode than-are any of the said outer electrodes and has a discharge surface so disposed that a first portion of the said surface is nearer to a first selected one of said outer electrodes than to any other electrode and a second portion of the said surface is nearer to a second selected one of said outer electrodes than to any other electrode. In one arrangement, Figs. 3 and 6, the tube comprises a central circular anode (not 'shown) surrounded by a circular row of main cathodes and first and second guide cathodes of which only first guide cathodes GA 9 , GA 0 , and second guide cathode GB 9  are shown. The marker or zero main cathode K 0  is disposed outside the circular row of cathodes and comprises two portions 1 and 2 each having a configuration similar to the other guides and cathodes, which portions are connected together, e.g. by a spot weld 8 below a ceramicspacer S. Portion 1 of K 0  is much nearer to GB 9  than to GA 9  so that the negative voltage to which K 0  must be returned when operating the tube is as uncritical as possible. Portion 2 of K 0  is spaced from GA 0  by the normal spacing between the electrodes in the circular row, so the tube is stable in use. Figs. 7 and 8 show alternative forms of the zero cathode K 0 . In Fig. 7 the L-shaped cathode has a vertical portion 4 and a horizontal portion 3 extending towards the electrode GB 9 . In Fig. 8 the cathode comprises a vertical rod 6 to which is welded a plate 5 which extends towards GB 9 .
Patent GB-337471-A (GB)
Title: Improved apparatus for the distillation of volatile metals
IPC: F27B5/00
Filed: 1929-08-03
Abstract: 337,471. E. M. S. Industrial Processes, Ltd., Stokes, R. A., and Roberts, E. G. L. Aug. 3, 1929. Metallurgical furnaces; hearths; charges, agitating and conveying.-A furnace for distilling volatile metals, such as zinc, mercury, and cadmium, comprises a chamber 1 having a hearth formed of troughs 2 over which the material is passed from the inlet 3 to the outlet 4 by rotary agitators 8, the roof of the furnace being constituted by a water-box 7 which serves to cool the outlets 5 for the metallic vapour. The ends of the agitator shafts 9 are hollow to permit of water cooling. The furnace is heated either by the passage of combustion products through the space 20 below the hearth or electrically and the heating may be so controlled that the material is gradually raised to a maximum temperature which decreases as it approaches the discharge opening 4. Specifications 224,568 and 273,528 are referred to.
Patent GB-330183-A (GB)
IPC: F28D1/03
Filed: 1929-08-06
Abstract: 330,183. Fiat Soc. Anon. June 7, 1929, [Convention date]. Plate apparatus.-The corrugated strips 1, 1<1> of a motor-car &c. radiator are formed with transverse projections 4, 5 which project into the air passages of the radiator and produce whirling of the air passing therethrough. The projections extend slightly beyond the edges 6, 6<1> of the strips so that when the edges abut the projections prevent relative longitudinal displacement of thestrips.
Patent GB-388440-A (GB)
Title: Improvements in or relating to swivel bearings
IPC: B60B33/00
Filed: 1931-08-27
Abstract: 388,440. Thrust bearings for castors, cranes, &c. WADE, H., 111, Hatton Garden, London.-(Bassick Co. ; 38, Austin Street, Bridgeport, Connecticut, U.S.A.) Aug. 27, 1931, No. 24132. [Class 12 (i).] A swivel bearing comprises an intermediate member 12 having oppositely directed arcuate thrust bearing surfaces 17, 23, the middles of the arcs lying at opposite ends of a diameter passing through the swivelling axis, and race members 30, 31, on either side of the intermediate member 12, provided with circular thrust bearing surfaces which co-operate by antifriction element such as balls 33 or rollers with the respective bearing-surfaces 17, 23 of the member 12. The antifriction elements 33 are thus arranged at two levels, those at one level taking the thrust in one direction and those at the other level taking the thrust in the opposite direction. The bearing-surface, e.g. 23, which takes the greater load may be of greater angular extent than the bearing-surface 17 taking the smaller load. The antifriction elements 33 are relieved of load as they drop from the higher to the lower level. The number of antifriction elements 33 under load may be varied by inclining the member 12 relatively to the race members 30, 31. As shown, the member 12 is formed of three parts secured together by rivets 26 or by welding. Alternatively, the three parts may be integral with one another and form part of the castor horn 10, and some or all of the bearing surfaces 17, 23, 30, 31 may be of arcuate cross-section.
Patent GB-744520-A (GB)
Title: Improvements in or relating to hoisting apparatus
IPC: B66B9/187
Filed: 1951-08-01
Abstract: 744,520. Platform load-handling machines; lifting-jacks. YOUTZ, P. N. Aug. 1, 1951 [Aug. 12, 1950], No. 24268/54. Divided out of 744,462, [Group X]. Class 78 (3). An apparatus for hoisting roof and floor slabs of buildings comprises a jack 8, one or more, e.g. two, threaded lifting rods 27 adapted to be engaged by part of the jack 8 and moved thereby, an abutment, e.g. a cross head 7, past which the rods 27 are moved by the jack 8, a nut '28 threaded on each rod and adapted to engage the head 7 to prevent retrograde movement of the rod 27, and means, e.g. a chain 30 on a sprocket 29, exerting a continuous force on the nut 28 tending to tighten it against the head 7. The jack 8 is mounted on the head 7. The whole apparatus is mounted on the top of a column 1, the slabs being cast about several such columns, and the lower ends of the rods 27 are screwed into thimbles 66, Fig. 13, secured during the casting operation in an upstanding tubular part 67 of a plate which is cast in the slab and surrounds the column 1. The slab is raised as follows: fluid is pumped into the jack 8 at 36 to raise a piston 37 and a sleeve 41 against a spring 45 until an insert 46 contacts the cylinder head 42. The sleeve 41 carries with it a crosshead 9 having lugs through holes in which pass the rods 27, nuts 48 being screwed on the rods 27 and bearing on washers 52 on the head 9. The nuts 48 have sprockets 49 and a chain 50 driven by a continuous torque hydraulic motor 51 which tends to force the nuts 48 against the washers 52. As head 9 rises friction prevents the nuts 48 rotating relatively to the rods 27 which are hence pulled up to raise the slab, a hydraulic motor 31 rotating the nuts 28 through the chain 30 to maintain the nuts 28 against the head 7. When the fluid is released from the jack 8, the spring 45 returns the parts of the jack to their positions of Fig. 5, the nuts 48 now being rotated by the motor 51, rotation of the nuts 28 being prevented by the tension of the rods 27 being transmitted to head 7. The rods 27 pass through holes 26 in lugs 25 on the head 7. A slab may be held in any raised position by rods 55 which screw into the plate in the slab previously referred to and at their top ends have nuts 56 engaging lugs 57 on the head 7.
Patent GB-576682-A (GB)
Title: Improvements in or relating to gas-fired water heaters
IPC: F24H9/20
Filed: 1944-07-13
Abstract: 576,682. Gas-fired water heaters. PEET, A. July 13, 1944, No. 24302/45. Divided out of 576,666. Drawings to Specification. [Class 64 (i)] [Also in Group XXIX] In a gas-fired geyser in which the gas valve is self closing and is controlled by a diaphragm or piston subject to the differential pressures at the mouth and throat of a venturi passage in the water conduit, the venturi is incorporated in a temperature selector valve constituting an adjustable by-pass to the venturi. The invention is described with reference to the apparatus described in Specification 576,666.
Patent GB-906542-A (GB)
Title: An improved method and machine for making concrete beams
Inventor: ISAAC GWYLON
IPC: B28B1/093
Filed: 1958-07-28
Abstract: 906,542. Moulding concrete beams. PRESTRESSED & REINFORCED CONCRETE ENGINEERING Ltd. July 28, 1959 [July 28, 1958], No. 24304/58. Class 87(2). A machine for moulding concrete beams comprises two side formers 11 which are movable from the position, shown in Fig. 2, where, with a pallet 15, they form a mould; means to separate the side formers and to raise the pallet; and a beam 21, supported above and between the side formers 11 so as to be movable both vertically and horizontally, carrying at least one vibrator 33. The beam 21 is supported from a carriage 19 through posts 27, 27<SP>1</SP>, 31 on which are pivoted levers 25, 26 and an arm 30, the levers having cam surfaces whereby they hold up guide rods 22, projecting from the beam 21, when a handle 32 is depressed. When the handle 32 is raised the arm 30 is rotated and arms 28, 29 cause levers 25, 26 to move away and the beam 21 descends till stops 35 thereon meet the upper surface of the formers 11. One end (e.g. the right-hand end as shown) of the beam 21 rests, through a plate 34, on one end of the concrete (e.g. the left-hand end) and is pressed down by a spring 23. The vibrators 33 are energized and a length of the concrete at one end, up to the position 38, is compacted to the level 37. The beam is then raised and the carriage 19 moved till the beam 21 is in position to compact another length of the concrete, and so on till the whole length has been moulded and compacted. Arms 14 are then swung back to release the side formers 11 which swing outwards, allowing the beam to be raised on the pallet 15 by spring-mounted rollers 17. In a modification, one only of the side formers may be movable and the side formers and pallet may be locked together by pins. The beam may be raised and lowered hydraulically. The distance between the side formers may be adjustable in their working position. The machine may be adapted, to mould beams of various sections, including beams having a slight bend. Additional means may be provided to guide the beam 21. Specification 893,791 is referred to.
Patent GB-646765-A (GB)
Title: Detergent composition
IPC: A61K8/46
Filed: 1948-09-15
Abstract: In the preparation of detergents, a shale oil fraction boiling within the range 270 DEG  to 360 DEG  C. is reacted with sulphuric acid and neutralized with a metal base to produce metal alkyl sulphates of low solubility in water.  The sulphonation is preferably effected with sulphuric acid of 96-100 per cent strength, in amount from 10-20 per cent, preferably 12-13 per cent by volume of the feed oil, and at a temperature below 20 DEG  C., preferably 5-20 DEG  C.  The alkyl sulphates are separated from the acid sludge and run into excess of metal hydroxide or carbonate solution, e.g. sodium carbonate.  The resulting emulsion is refluxed for say 5 hours at 95 DEG  C. and extracted with, for example, isopropyl alcohol to separate the more volatile unreacted oils.  The separated alcoholic detergent solution is then evaporated to a thin paste containing about 12.5 per cent of sodium alkyl sulphate calculated as C20 H41SO3ONa.ALSO:A detergent composition is prepared by reacting a shale oil distillation fraction boiling within the range 270 DEG  to 360 DEG  C. with sulphuric acid, neutralizing with a metal base to produce metal alkyl sulphates of low solubility in water, and mixing with a filler such as kieselguhr. The sulphonation is preferably effected with sulphuric acid of 96-100 per cent strength, in amount from 10-20 per cent, preferably 12-13 per cent, by volume of the feed oil, and at a temperature below 20 DEG  C., preferably 5-20 DEG  C.  The alkyl sulphates are separated from the acid sludge and run into excess of metal hydroxide or carbonate solution, e.g. sodium carbonate.  The resulting emulsion is refluxed for, say, 5 hours at 95 DEG  C., and extracted with, for example, isopropyl alcohol, to separate the more volatile unreacted oils.  The separated alcoholic detergent solution is evaporated to a thin paste containing about 12.5 per cent of sodium alkyl sulphate calculated as C20H41SO3ONa, which is mixed with a binding agent such as bentonite and a filler such as kieselguhr to form a detergent paste suitable, for example, for cleaning the hands of mineral lubricating oils and sludges, dirt containing weak acids or metallic salts such as zinc chloride, or for cleaning painted surfaces. Mineral oils such as spindle oil, antiseptics, deodorants, and colouring matter may be added.
Patent GB-270558-A (GB)
Title: Improvements in combined lock and bung for storing, shipping and dispensing receptacles
IPC: B65D39/08
Filed: 1926-10-02
Abstract: 270,558. Marks, E. C. R., (Marvel Equipment Co.). Oct. 2, 1926. Bungs.-A bung for metal barrels and like containers which can be locked to prevent unauthorized removal of the contents, comprises a screwed closure member 3 having an hexagonal head B for co-operation with a spanner and a swivelled stud 11 projecting therefrom over which a dished plate C is placed and secured by a lock 14. The plate C has depending edges which prevent the operation of the member 3 by a spanner &c., and is freely rotatable on the stud 11. A small transverse hole may be provided in the stud 11 for a sealing wire. The hollow chamber 10 within the member 3 may be closed by a plug P or by suitable sealing material.
Patent GB-1048655-A (GB)
Title: Apparatus for controlling a device for rejecting faulty rod-like articles such as cigarettes
Inventor: HELLMANN JULIUS
IPC: A24C5/34
Filed: 1962-06-26
Abstract: 1,048,655. Cigarette-making machines. K. KÍRBER. June 25, 1963 [June 26, 1962], No. 24491/62. Heading A2C. In a device for controlling a rejector device for rejecting faulty rod-like articles such as cigarettes an air flow resulting from the checking of the articles and variable according to the properties of the articles is utilized for actuating a signal source which operates on control means in turn operating the rejector device, an oscillator circuit being provided as the control means. The air flow through the cigarettes may be determined as described in Specification 1,048,652 and the device for controlling the rejector device may be of similar construction to that described with reference to Fig. 3 in the said Specification except that the air flow is used to control the position of an iron dust core responder member 13 in a tube 7. The member 13 acts as a movable armature within the coils 17 of an oscillator circuit unbalance of which is arranged to cause a rejector device to operate and to operate an indicator lamp 27.
Patent GB-172080-A (GB)
Title: Universal swivel workshop stand for motor and aircraft engines, gear boxes and the like
IPC: B25H1/00
Filed: 1920-08-24
Abstract: 172,080. Foster, T. W., and Dooley, A. Aug. 24, 1920. Benches, work.-Relates to workshop stands of the type comprising two frames A adjustably connected by bars 1 and supporting swivel bars B on which are mounted slotted bars C to which an engine, gear-box, &c. mav be fixed, the whole stand being carried on wheels 6. Two bearing- members 5, Figs. 6 and 9, are provided for each swivel bar B, one fixed to the frame A and one to the bar B, thus providing a long bearing for the pivot stud 4. An additional angle bar B<1> may be interposed between the bars B and the slotted bars C for securing to the latter engines having horizontal fastenings. A plate 8, Fig. 10, having a T-slot, may be pivotally fixed to thebar B or B<1> to provide for a central supporting- bolt for the bar C, the plate being swung out of the way in the case of an engine having a central fixing lug. For supporting gear boxes &c. two sets of bars, Fig. 4, comprising two slotted parts E adjustably connected by bolts are fixed to the bars C, Fig. 3, by lugs E<1>, the gear-box being fixed to lugs E<2>. The wheels 6 may be locked by tightening the nuts on the pivot bolts 7.
Patent GB-1461728-A (GB)
Title: Hot gas engine power control device
IPC: F02G1/05
Filed: 1975-06-07
Abstract: 1461728 Fluid-pressure servomotor systems UNITED STIRLING (SWEDEN) AB & CO KB 7 June 1975 24558/75 Heading G3P [Also in Division F1] A control system for a Stirling cycle or other hot gas engine comprises a servomotor 9 actuating a working gas regulating valve 19, 20, and a pressure reducing valve 6 controlling the flow of actuating fluid from an engine driven pump 1 to servomotor 9. Above a predetermined engine speed 'C' the pump output pressure in line 4 remains constant so that the servopressure in line 8, and thus the engine speed, depends only upon the position of reduction valve 6 as set by throttle pedal 15. However, should the engine speed fall below value 'C', the pump output pressure decreases Fig. 2 (not shown) and since valve 6 is arranged to produce an increasing servopressure in line 8 with decreasing pressure in line 4, servomotor 9 moves valve 19, 20 to increase the working gas flow and thus maintain the engine idling speed substantially constant. The valve 19, 20 comprises a bore 20 having axially spaced ports 21 to 25 and within which slides spool 19 having passages 32, 33. In the position shown no communication is possible between any of the ports 21 to 25. However if spool 19 is moved leftwards due to increased servopressure, passage 33 will connect ports 21, 22 allowing additional working gas to flow from a high-pressure reservoir to the engine inlet to increase the power output. Rightwards movement of spool 19 causes passage 32 to connect ports 25, 23 so that working gas can flow from the engine outlet via a non-return valve to the inlet of the reservoir charging compressor, thus decreasing engine power. Further rightwards movement of spool 19 connects ports 25, 24 causing a recirculation of working gas from the engine outlet to the inlet to effect engine braking. Pump 1 is an oil pump, part of the output of which flows to a bearing lubrication circuit 3.
Patent GB-317327-A (GB)
Title: Improvements in or relating to anaesthetics
IPC: A61K31/16
Filed: 1929-08-12
Abstract: 317,327. I. G. Farbenindustrie Akt.- Ges. Aug. 13, 1928, [Convention date]. Addition to 302,337. Medicines for internal use.-The process described in the parent Specification for the manufacture of a stable liquid preparation of tribromoethyl alcohol which is soluble in water, by adding amylene hydrate thereto, is modified by replacing the amylene hydrate by another tertiary alcohol or by a secondary alcohol. Preparations specified contain respectively trimethyl carbinol 1 part, tribromoethyl alcohol 3 parts; and isopropyl alcohol 1 part, tribromoethyl alcohol 4 parts. The preparations may be exposed to light and to a temperature of 100‹ C. without decomposition. Preparations made with ethyl alcohol, glycol, or glycerine are referred to, but are stated to be unstable.