baber/WOPTO huggingface dataset:
Patent GB-1466867-A (GB)
Title: Control system for vehicles
IPC: B60W10/10
Filed: 1973-04-14
Abstract: 1466867 Regulating IC engines CAV Ltd 29 March 1974 [14 April 1973] 18092/73 Heading FIB [Also in Divisions F2 and H3] The output of an engine fuel pump 15, and hence the rate of engine fuel supply, is controlled through a rod 35 by an electro-mechanical actuator 16a, energized through a drive circuit 45 in response to three tranducers 36, 37, 38 responding respectively to engine speed, rate of fuel supply and engine speed demand, the last named being the usual engine accelerator pedal, which provides a voltage opposing the other two. The transducer outputs, converted to currents by resistors 36a &c., are applied to the inverting terminals of operational amplifiers 39, 40, supplied by positive and negative terminals 41, 42, and having their non-inverting terminals 43 at a midway reference potential. The amplifiers control the drive circuit 45 inversely through diodes 44, 46, which discriminate in favour of that amplifier 39 or 40 which is producing the more positive output. Feedback resistors 47, 48 compensate for the temperature-dependent voltage drop across the diodes 44, 46. The amplifier 39 compares the actual and demanded speed signals, and adjusts the pump control until the signals approach a relative value determined by the pump output signal. The amplifier 40 receives only the output from the pump output transducer 37 and a predetermined reference current from a source 49, and, when pump output exceeds a value determined thereby, takes over from the amplifier 39 to reduce the fuel supply until the amplifier 39 demands less fuel than the predetermined maximum of the amplifier 40, whereupon the amplifier 39 again resumes control. During a ratio shift in an associated electronically controlled change-speed gear, (see F2D), the full voltage line 42 is connected to the inverting input 49, 37b of the amplifier 40 whereby the latter produces a larger positive output than the amplifier 39, and therefore takes over from 39 to reduce the fuel supply during shift and subsequently increase it gradually to pre-shift value as the signal from the shift circuit decays. Fig. 13 (not shown), provides a means for increasing the engine fuel supply to prevent stall when engaging a gear ratio with the engine idling in neutral. Signals from individual ratio establishing circuits (see F2D) are connected through diodes (D17) and a resistor (68) to a capacitor (C9), which discharges and causes, at some point, a transistor (TR19) to conduct and thereby adjust the voltage across a capacitor (C8), which voltage varies the current fed from an independent source (70) to the inverting input of the amplifier 39, Fig. 6, thereby adjusting the fuel control rod 35, when entering a ratio from neutral, and reversing the adjustment when neutral is resumed. Resistors (64, 67) determine the engine idle speed.
Patent GB-546050-A (GB)
Title: Process for improving the fastness to washing of dyed cellulosic textile materials
IPC: D06P1/56
Filed: 1940-12-24
Abstract: 546,050. Treating cellulosic textiles. COURTAULDS, Ltd., and MACGREGOR, J. H. Dec. 24, 1940, No. 18093. [Classes 2 (iii) and 15 (ii)] Cellulosic textile materials dyed with direct cotton dyes are treated, to improve the fastness of the dyeings to washing and to impart a soft handle to the materials by applying a solution containing formaldehyde and an arylguanidine or a guanidine salt of an aliphatic dicarboxylic acid or of an alkyl ester of such an acid, or containing a water-soluble condensate of such components, and thereafter forming an insoluble condensate on the materials. The use of sym-diphenylguanidine, guanidine adipate, guanidine sebacate and the guanidine salt of ethyl adipate is specified. In examples, (1) a viscose fabric, dyed with Rigan sky blue G, is immersed in an aqueous solution containing formaldehyde, diphenylguanidine and acetic acid, squeezed, dried at just under 100‹C. and heated for 15 minutes at 140‹C. ; (2) a viscose satin fabric, similarly dyed, is immersed in an aqueous solution containing a water-soluble urea-formaldehyde condensate obtained by refluxing urea with aqueous formaldehyde in methanol, diphenyl guanidine, or a watersoluble condensate thereof with formaldehyde, and acetic acid, squeezed, dried and heated as in (1); (3) a viscose satin fabric, similarly dyed, is immersed in an aqueous solution containing formaldehyde and guanidine sebacate, squeezed, dried and heated as in (1); (4) a viscose satin fabric, dyed with Chlorazol fast red K, is immersed in an aqueous solution containing formaldehyde, guanidine adipate and ammonium sulphate, squeezed, dried and heated as in (1). Specifications 429,209, 456,451 and 532,871 are referred to.
Patent GB-1373143-A (GB)
Title: Safety pressure relief apparatus
IPC: F16K17/16
Filed: 1973-02-23
Abstract: 1373143 Bursting discs MARSTON EXCELSIOR Ltd 23 Feb 1973 [19 April 1972 11 July 1972] 18112/72 and 32349/72 Heading F1D In a pressure relief device a reverse-buckling rupture disc 2, Fig. 1, is clamped between support members 3, 4 in such a way that the disc cannot be removed readily so that the whole unit must be replaced when the disc has ruptured. As described, the members 3, 4 are fixed together by screws 5 which are rendered inaccessible by a cover 8 welded or bonded in position. Parts 3, 4 and 8 are made of a plastics material e.g. "Kematal" (R. T. M.). A disc-cutting element 12 is provided. To minimize the possibility of damage to the disc from external sources, holes 19, 20 are staggered, and small holes 16 are provided in a connecting boss 15. Fig. 3 shows a modification in which radial holes 24 lead into an axial hole 25. Fig. 4 shows an embodiment in which a disc 27 is clamped between a member 29 and a sleeve 31, which is retained by a member 30 screwed into the member 29. Radial passages 36, 37 lead into annular passages 38, 39. A cover plate 44, secured in place by an adhesive, prevents the assembly being dismantled. Alternatively a radial pin may be inserted through the member 29 into the member 30.
Patent GB-1344447-A (GB)
Title: Welding seam tracking method and apparatus
IPC: B23K15/02
Filed: 1972-04-19
Abstract: 1344447 Programme control WELDING RESEARCH Inc 19 April 1972 [23 June 1971] 18124/72 Heading G3N  A welding tool is caused to follow a seam at a desired speed by using a seam tracking device, the output of which may be encoded and stored by a computer, the seam is detected by rotating a beam of energy in a circular path which crosses the seam at two points, causing a change in an output voltage. In the arrangement shown, an electron beam from a tracking gun 1 is directed towards two workpieces 4 abutting at a seam 3. A circle generator 5 supplies signals sin wt and cos wt to deflect the beam and cause it to follow a circular trace 7 on the workpieces. Scattered electrons are collected by antenna 6 to produce an output signal comprising pulses occuring as the beam crosses the seam 3. The pulses trigger a flip-flop 11, the output from which is multiplied by the sin wt and cos wt signals and by a desired speed signal 13 to produce X and Y axis components of a drive signal. The flip-flop output is also integrated 8 and multiplied by the sin and cos signals to give a positon error drive signal. The two drive signals are added together for each axis so that the resulting drive ensures that the gun 1 follows the seam 3 at the desired speed. To prevent anomalous triggering of the flip-flop 11, a window gating circuit 15 is included, and an assurance pulse circuit 16 switches the flip-flop if a pulse is missing, thus preventing out-of-phase switching leading to drive reversal. A system of guard pulses ensures smooth path following if the pulses disappear for a period of time. The guard pulses are generated by NOR gating circuits 19 using a reference frame divided into four overlapping quadrants. The movements of the X and Y axis carriages are encoded for display and storage in a computer, which calculates an interpolated path for use in controlling an electron beam welding tool to follow the seam. The tool may be installed behind the tracking gun 1 for simultaneous movement allowing for the difference in position between the tool and gun, or the recorded tracking data may be used to control the same gun 1 when used subsequently as a welding tool.
Patent GB-326724-A (GB)
Title: Improvements in or relating to spectacle cases
IPC: A45C11/04
Filed: 1929-06-13
Abstract: 326,724. Barnes, E. June 13, 1929.. Spectacles.-A case for spectacles comprises a base 21 and lid 22 pivoted together at an intermediate point 23 so that the end 24 can be opened by pressing the end 25 at which the lid and base preferably diverge. The base 21 is formed with flanges 26 inclined inwards along both sides and round the end 25, and the lid 22 is furnished with flanges 27 overlapping flanges 26. A spring 28 holds the case shut and the pivot wires 23 are bent so that free passage is allowed past the pivot. The lid may have a gap 30 and strengthening ribs 31 and the base a flared extension 29 and ribs 32 and 33. The bridge of the spectacles is guided by rib 32 to depression 33 and the depressions are smooth to facilitate removal of dust. The extension 29 may have ribs 35 to strengthen it, these ribs being joined by a turned-over portion 36 which with a strip 37 holds a lining in place. A strip 38 may strengthen the lid or a transversal rib or web may be used, the strip 38 holding the lining of the lid. Internal shields may cover the pivots, which need not necessarily be of wire.
Patent GB-709746-A (GB)
Title: Electric battery hand lamp for use in explosive atmospheres
IPC: F21L4/00
Filed: 1951-07-31
Abstract: 709,746. Electric battery lamps. ANGLOIRANIAN OIL CO., Ltd., and MACLEAN, T. T. July 30, 1952 [July 31, 1951], No. 18156/51. Class 39 (2) A safety hand lamp adapted for use in explosive atmospheres comprises a casing 10 with one end open for the insertion of a battery 29, and a laterally projecting compartment or cylindrical extension 11 at one side containing a reflector 16 and bulb (not shown), the casing being provided with an end cap 24 formed with a sleeve portion 25 which makes close sliding contact with the wall of the casing, and an internal switch 27, 31 operable by movement of the cap, access to the interior of the casing and compartment 11 being gained only by removing the cap and thereby breaking the electric circuit, and the dimensions of the passage between the cap and casing, and any similar passage, being such that a flame within the casing cannot pass to the external atmosphere. The cylindrical projection 11 on the casing receives with close sliding fit an internally screw-threaded sleeve 14 on a carrier ring 12 which has a thick lens 13 cemented within it adjacent to a pair of threaded rings 18, 19 holding the reflector 16 in position, while the other end of the sleeve 14 is engaged by a screw-threaded retaining-ring 21 with an end flange 22 which bears against a shoulder 23 on the casing wall. A pin 20 projecting from the part 11 engages within a socket in the ring 12 and prevents rotation of the latter. The flange 22 supports a terminal for one end of a contact strip 34 for the centre contact of the lamp bulb, connected by a lead 33 to a contact 31 of a switch mounted in a position to engage an arm 27 on the underside of the cap 24 when the latter is rotated. The extent of rotation is limited by providing an arcuate notch in the edge 48 of the cap to receive part of an upstanding handle bracket 39, the "on" and "off" positions being denoted by spaced detents for a ball-catch 49. Breaking of the lamp circuit before the cap is removed is ensured by providing the two handle brackets 39, 40 with inwardly projecting portions 45, 46 which overlie the edge of the cap, and hinging their lower ends to the casing, so that they can be held in the locking position by an interposed wooden handle 41 secured by a bolt 43 and a nut in a recess 44. In a modification, Fig. 3 (not shown), a switch mounted on the inner wall of the casing comprises a resilient strip with one end fixed and the free end normally spaced from a contact arm against which it is forced when the rotation of the cap causes an insulated stud thereon to depress the contact strip. Specification 665,115 is referred to.
Patent GB-1462675-A (GB)
Title: Colour sorting of irradiated materials
IPC: G21H5/00
Filed: 1974-04-25
Abstract: 1462675 Determination of aluminium in quartz etc SAWYER RESEARCH PRODUCTS Inc 25 April 1974 [25 Feb 1974] 18163/74 Heading G1B The approximate aluminium content of colourless and smoky quartz, quartzite, glass or other silicate materials containing from 0 to 1000ppm of aluminium is determined by a rapid non-destructive method comprising (a) irradiating particles of the material with ionising radiation, for example gamma or X-radiation for a measured period of time and at a known intensity sufficient to cause the distinctive colorations that occur in such material containing aluminium, (b) measuring the amount of overall residual colour in each particle of irradiated material, (c) measuring the proportion of yellow colour in each particle of irradiated material, and (d) comparing the amount of colour and the proportion of yellow determined in each particle in steps (b) and (c) to those determined for standard samples of measured aluminium content irradiated  at the same intensity for the same time. The method may be applied to for example colourless and smoky Brazilian lascas quartz containing 0 to 500 ppm aluminium. Reference is made to prior Specification 1382373 (see Group C1).
Patent GB-146370-A (GB)
Title: Improved process for the manufacture of baked articles directly from grain
IPC: A21D13/02
Filed: 1920-07-02
Abstract: 146,370. Gross, P. Oct. 3, 1914, [Convention date]. Processes for reduction of grain; hulling, husking, and decorticating. - In a process for the manufacture of baked articles direct from corn, the grain is soaked in warm water at about 60- 65‹ C. while being whipped with wire brushes or the like for the separation of the outer husks. The remainder is then crushed as usual, worked into a dough, and baked.
Patent GB-946296-A (GB)
Title: Improvements relating to luminescent materials
Inventor: ROBBINS DEREK
IPC: C09K11/72
Filed: 1959-05-29
Abstract: The luminous output of a halophosphate material, e.g. calcium halophosphate activated by antimony and manganese is improved by washing the material with an organic alpha-hydroxy acid after it has been fired and powdered. Suitable acids are lactic, citric and tartaric acid.  A 1/2 -2% solution of the alpha-hydroxy acid such that the weight of the alpha-hydroxy acid is 10% of the phosphor can be used.  Specifications 691,563, 788,451 and 790,925 are referred to.
Patent GB-1176414-A (GB)
Title: Adjustable Timetables
Inventor: PING SIA NGIONG
IPC: G09F7/10
Filed: 1967-04-21
Abstract: 1,176,414. Time-tables; adjustable indicator boards. S. N. PING. 21 April, 1967, No. 18442/67. Headings G5C and G5G. An adjustable time table for use in schools comprises a plate bearing time-table legends and formed with slits arranged in rows and columns each slit being arranged to receive the tongue of a tag bearing additional timetable legends. As shown the legends borne by the plate includes the names of the working days of the week and the legends borne by the tags may include the names of the subjects. Upper and lower holes 10 are provided for pins attached to a marker thread 12.
Patent GB-587488-A (GB)
Title: Concrete mixer
IPC: B28C5/42
Filed: 1944-09-27
Abstract: 587,488. Mixing-machines. DEHN, F. B. (Chain Belt Co.). Sept. 27, 1944, No. 18473. [Class 86] In a concrete mixer comprising a rotatable mixing drum, a charging hopper movable to and from a position adjacent the drum, and an annular member interposed between the hopper and the drum and mounted rotatably on either hopper or drum, means are provided for ensuring relative rotation between the annular member and its supporting element whilst preventing, by means independent of friction, relative rotation between the annular member and the other element. Contact between the drum 11, Fig. 2, and the hopper 29 is sealed by an annular bearing element 30, which, in the discharging position of the hopper 29 may rotate with the drum 11 through the frictional engagement of the contacting surfaces. The hopper 29 is moved from its discharging to its charging position by a handwheel geared to the shaft 55 of a crank arm 56 connected to one of a pair of arms 50 which are mounted on a pivoted shaft 40. The lower end of each arm 50 is pinned to an extensible link 51 which exerts pressure through a spring loaded arm 52 connected to a trunnion 53 mounted on the side of the hopper. As the hopper moves towards the drum the crank 56 rotates through linkage 66, 65 a sleeve 63, Fig. 4, on the shaft 40, and a pin 62 thereon contacts a lug 60 on the surface 59 of the ring 30 and prevents the rotation of the ring when the hopper is in the charging position. The drum is mounted for rotation about an inclined axis and carries a track 16 which is spaced outwardly from the drum by means of a relatively flexible web 69 and which is rotatable on rollers 17. A discharge shoot 28 is mounted with its centre offset with respect to the vertical plane through the axis of the drum. In a modified construction the hopper is supported by a bracket extending radially from the upper edge of the discharge opening of the hopper and fixed to a shaft mounted in bearings disposed axially within the mixing drum; and a vibratory plate is hingedly mounted on a wall of the hopper in order to loosen material which might prevent the escape of air from the drum during charging.
Patent GB-949139-A (GB)
Title: Dispensing closure
Inventor: ALBIANI LIDO
IPC: B65D47/04
Filed: 1962-05-14
Abstract: 949,139. Dispensing closures. KORRISS PRODUCTS Inc. May 14, 1962, No. 18495/62. Heading B8T. A plastics lid or closure 12 for a dispensing container has a pivoted spout in which quadrantal side pieces 23 are partially closed by a part cylindrical surface 27, the spout being integrally hinged to the closure at 19. A depression 22 facilitates opening by insertion of a finger nail. The spout is biased to the open position shown, and is maintained closed by engagement of notch 25 with the wall of the closure. The open position is limited by a stop 29.
Patent GB-863212-A (GB)
Title: The simultaneous production of coal gas and steam from coal
Inventor: WOLF OTTO
IPC: C10J3/46
Filed: 1957-06-12
Abstract: 863,212. Coking coal. STEINMULLER G.m.b.H., L. & C. June 12, 1957, No. 18498/57. Addition to 857,919. Class 55 (1). In a process for the simultaneous production of steam and coal gas from coal, the coal is powdered, pre-oxidized whilst conveyed in suspension in a gaseous carrier through a pre-oxidation shaft, carbonized whilst in suspension in a gaseous carrier in a degasifying shaft and then the coke and coal gas separated, the coke being burnt in a boiler to produce steam, the arrangement being such that the heat necessary for preoxidizing and carbonizing the coal is supplied at least partly from the boiler and at least some of the heat from the gas and coke is transferred to the boiler. The coal may be suspended in part of the resultant gas as carrier gas, air or oxygen being introduced for partial oxidation, the preoxidized coal then being conveyed through the degasifying shaft to a dust-extraction plant from which the hot coke is fed directly to the burners of the boiler. The coal gas gives up its heat to boiler feed water. The furnace gas from the boiler gives up some of its heat to the oxidation and degasifying shafts and then heats water preheaters. The temperature and therefore the rate of degasification may be varied to adjust the ratios of gas and steam produced and oil or tar may be mixed with the coal. Also the steam production can be increased by supplying the boiler with additional quantities of uncoked coal. Heat may be transferred from the boiler to the coking installation by using an oil, sodium, or potassium circulation system, the transfer of heat being regulated by adjusting the pressure in the system. The air for combustion in the boiler may be heated by flue gas or by burning a fuel.
Patent GB-572210-A (GB)
Title: Improvements in or relating to aluminium base alloys
IPC: C22C21/16
Filed: 1943-11-08
Abstract: 572,210. Alloys. CHADWICK, R., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Nov. 8, 1943, No. 18512. [Classes 72 and 82 (i)] A process for the manufacture of highstrength, corrosion-resistant aluminium base alloys comprises subjecting an alloy consisting of 0.5-5 per cent copper, 1.5-4 per cent magnesium, 0.2-1.6 per cent chromium and the balance aluminium, to solution heat treatment between the solidus and the limit of solid solubility, cooling substantially to atmospheric temperature at a rate sufficiently rapid to ensure supersaturation, and thereafter heating to a temperature between 150‹ C. and 220‹ C. for a sufficient period of time to effect precipitation hardening. The alloy may also contain one or both of manganese and titanium in proportions of 0.2-1.5 per cent and up to 0.5 per cent, respectively. Impurity proportions of iron and silicon may also be present. One specific alloy referred to consists of copper 3 per cent, magnesium 2 per cent, chromium 0.5 per cent, manganese 0.5 per cent and the remainder aluminium and impurity proportions of iron and silicon.
Patent GB-1030132-A (GB)
Title: Improvements relating to the production of dispersions
IPC: B01J13/00
Filed: 1963-05-10
Abstract: <PICT:1030132/C1/1> In the production of colloidal dispersions by deposition from the vapour phase of the substance to be dispersed, the dispersion medium is solidified and the substance to be dispersed is vaporized and deposited on the surface thereof from the vapour phase at pressures less than 10-2 mm. Hg., the said surface being renewed to prevent the dispersed substance from forming a coherent layer.  This renewal, by carrying out deposition from the vapour phase of the substance to be dispersed, either simultaneously with or alternately to the solidification of the dispersion medium, or by removing the surface layers upon which deposition from the vapour phase has occurred by a brush or scraper device.  The apparatus used comprises a jacketed vacuum chamber 1, having a drum 12, scraper 15, and electrically heated evaporator 5 mounted therein.  The drum is rotated by an external electric motor 19 and contains pipes 22 through which a coolant, e.g. liquid nitrogen or liquid helium, may be circulated prior to entry to cooling jacket 2 via hollow shaft 21 and pipes 23.  The evaporator 5 has a radiation shield 8 and movable mask 7. The dispersion medium is stored in vessel 9 and enters the vacuum chamber through pipe 18.  In the exemplified process for producing a dispersion of gold in water, the pressure in the chamber is reduced to 10-6 mm.  Hg., and coolant circulated.  The drum is slowly rotated whilst water vapour is introduced, the pressure being maintained at less than 10-5 mm. Hg. When a smooth surface layer of ice has been prepared using the scraper, the evaporator is heated and the mask is suitably adjusted to effect deposition from the vapour phase.  The scraper may be applied either continuously or intermittently.  The product is collected from basin 4.  The dispersion medium may contain dissolved solids, e.g. salts or gelatine, and may be a liquid other than water, e.g. blood plasma. In the latter case, the dispersion medium is solidified on the drum at atmospheric pressure either inside or outside the vacuum chamber.