baber/WOPTO huggingface dataset:
Patent GB-1046232-A (GB)
Title: Improvements in or relating to the manufacture and treatment of synthetic filaments
Inventor: GOODWIN CHESTER HOWARD
IPC: D01D5/06
Filed: 1963-02-06
Abstract: 1,046,232. Making synthetic filaments. CHEMSTRAND Ltd. Jan. 20, 1964 [Feb. 6, 1963], No. 4850/63. Heading B5B. In making filaments by extruding a solution of a polymer in a volatile organic solvent into a coagulating zone, the filaments are continuously withdrawn from this zone and passed successively through a hot stretch bath, a first hot drying and evaporating zone through which a heated inert gas is passed and the filaments are then conducted through a second hot drying zone through which a hot inert gas is passed under free-to-shrink conditions to reduce the tendency of the filaments to shrink subsequently. The filaments are thereafter subjected to a texturizing operation. As illustrated in the drawing (not shown) a spinning solution of a polymer such as polyacrylonitrile dissolved in a solvent such as dimethyl-formamide is wet spun into a coagulating bath 1 and the partially coagulated filaments 2 are withdrawn from the bath 1 by a set of driven rolls A and passed through a hot stretch bath 3. The filaments are withdrawn from the stretch bath by a set of rolls B driven at a higher peripheral speed than are the set of rolls A. The filaments are thereafter passed through a bath 4 containing a textile finish and then through a fluidized bed dryer 5 containing small ceramic beads heated mainly by electric heaters in direct contact with them. An inert gas heated by passage through an electric heater 6 is introduced into the bottom of the dryer to fluidize and to impart additional heat to the beads and to carry off the solvent evaporated from the filaments during their passage through the dryer. The solvent-laden inert gas is withdrawn from the dryer 5 by an extractor fan 7 and conducted to a solvent recovery system 8. The filaments are then passed through a second fluidized bed dryer 9 similar to the dryer 5 and heated in the same manner, the roll 10, over which the filaments pass into the dryer 9, being driven at such a peripheral speed as to permit shrinkage of the filament at a controlled degree within the range of 20 to 35%. The filaments 2 are finally passed through crimping rolls 11.
Patent GB-252256-A (GB)
Title: Improvements in diaphragm rings for oil fired furnaces
IPC: F23D11/00
Filed: 1925-02-23
Abstract: 252,256. Dow, D. M., and Clark, D. P. Feb. 23, 1925. Liquid-fuel furnaces.-To allow a man to enter the interior of an oil-fired furnace a plate is slidable in a rectilinear path within the plane of the diaphragm ring. Vertical flanged supports 5, 6 forming slideways are secured to the diaphragm ring 1, horizontal arms 7 extending from these supports to the periphery of the ring. The spaces between the ring and the supports 5, 6 are filled in by plates 8, and segmental plates 9, 10 are secured between the supports and to the upper and lower central parts of the ring. The rectangular space remaining is filled by three movable members, at the top an inwardly-swing- ing door 11 hinged on horizontal pins 14 arranged outside the furnace, an intermediate slidable plate 21 with an aperture 22 for the insertion of the oil fuel supply pipe and at the bottom a removable plate 24. To gain access to the furnace a catch 29 on the door 11 is released and the door swung inwardly, the plate 21 is slid upwardly between double flanges on the supports 5, 6 and secured by a pin passing through an apertured lug 30 and engaging with one of a number of recesses in the plate 21, and the lower plate 24 is removed bodily through an aperture 19 left in the outer flange on the support 6. A further aperture 18 made in this flange enables the intermediate plate 21 to be bodily removed when a cut-away part 23 of the plate coincides with the part of the flange remaining between the two apertures 18, 19. A flange 28 is formed on the door 11 and double flanges 26, 27 on the lower plate 24 to render the parts airtight.
Patent GB-442186-A (GB)
Title: Improvements in and relating to silencers for pulsating gaseous currents
IPC: F01N1/06
Filed: 1935-02-15
Abstract: 442,186. Exhaust and like silencers. JUNKERS - FLUGZEUGWERK AKT.- GES., 40, Junkersstrasse, Dessau, Anhalt, Germany. Feb. 15, 1935, No. 4927. Convention date, March 5, 1934. [Class 7 (ii)] The exhaust or other pulsating gaseous currents are passed along a bent or curved path within an outer casing of constant crosssection by means of an assembly of vanes or other surfaces, the bent or curved path being such that the length of the smallest arc differs from that of the largest arc by a wave length of the primary frequency of the gaseous currents, or an integral multiple thereof. Fig. 2 shows one form with inlet pipe 2 and outlet 3 connected by a casing 1 so that the gases are deflected through 180‹, the inner path 4 and the outer path 5, 6 of the gaseous flow being dimensioned as described above. Guide vanes 7, 8 divide the gases into streams. Fig. 4 shows another form in which the gases entering at 12 are deflected through 360‹ by a casing 11 having an outlet 13 at the side of the inlet 12. Concentric partitions 14 are fitted in the casing. In another form, Fig. 6, the gases are guided by a helix 22 in a casing 21 of such size that the flow path along the inner wall of the casing differs from that along the centre of the helix by the amount described above.
Patent GB-581083-A (GB)
Title: Improvements in and relating to rope and cordage
IPC: D07B1/20
Filed: 1944-03-20
Abstract: 581,083. Proofing permeable materials. LUMSDEN & MACKENZIE, Ltd., and GARRETT, C. March 20, 1944, No. 5176. [Class 1401 [Also in Group XXV] Rope and cordage are rendered buoyant in water by first extracting fatty, waxy or oily matter therefrom by means of an organic solvent such as petroleum benzene, pure benzene, ether, carbon tetrachloride, trichlorethylene or tetrachlorethane; removing the solvent and then impregnating the rope or cordage with an emulsion of fatty or waxy matter in water containing a dispersion agent and drying by heat to separate the dispersion and stabilize the fatty or waxy matter in the rope. Fibres or yarns may be similarly treated and then formed into rope.
Patent GB-152264-A (GB)
Title: Improvements in connection with the breech-blocks of guns
IPC: F41A3/48
Filed: 1920-02-20
Abstract: 152,264. Raymond, M. J. Feb. 20,1920. Ordnance breech mechanism; design.-Consists in radially-expanding locking means for longitudinally-sliding breech-blocks, and in a form of recoil-absorbing means combined with such breechblocks. Fig. 2 shows a locking- member detached from the breechblock. Figs. 4 and 6 show respectively a central longitudinal section and a transverse section of the breech mechanism with the breech closed but not locked. The locking-device comprises two semicylindrical members c located in a groove a<1> in the cylindrical breech-bloch a. The central stem a<2> of the breech-block is diamondshaped, and corresponding V-shaped grooves c' are cut in the members c. When expanded, the members c enter locking recesses b<2> in the wall of the breech b. The expanding means comprises two rotatable cam-members d<5> mounted on spindles d' projecting rearwardly through the breech-block a and actuated together by a handle d<4>. The cam-members d<5> engage with the curved surfaces c<4> of the locking-members c. Hooked arms d on the cam-members engage with pins c<3> in recesses c<2> in the locking-members, to effect the retraction of the locking-members to unlock the breech. Rotation of the breech-block is prevented by two withdrawable pins f connected by an external handle. The head of the breechblock is bored out to receive a spring buffer g, g<1>, which is stated to act as an obturator and absorb recoil.
Patent GB-466834-A (GB)
Title: Improvements relating to electrical equipment
IPC: B60L9/06
Filed: 1936-02-20
Abstract: 466,834. Exciting dynamo - electric machines. PESTARINI, G. M. Feb. 20, 1936, No. 5205. [Class 35] In a motor-generator or motor booster set, the motor field winding is energized by a constant current exciter excited partly or wholly in proportion to the generator current and the constant current generator exciter is excited in proportion to the motor current. In the form shown, the motor exciter 4 has coils 7, 8 excited by the generator and motor load currents respectively and a winding 9 excited by the battery 10 whilst the generator exciter 6 has coils 11, 12 in series with the motor M and generator G respectively whilst winding 13 is energized by the resultant voltage of machine 14 and battery 10, which resultant is zero at the normal speed. The motor exciter may also have a fourth exciting winding 18 connected in parallel with the generator. In a modification, the generator is not connected to the motor supply to act as a booster but is in a closed circuit with the load and exciter field windings. Specifications 399,351 ; 400,416, 404,739, [both in Group XXXVII], and 417,517 are referred to.
Patent GB-360303-A (GB)
Title: A new or improved method of and means for testing sparking plugs of internal combustion engines
IPC: H01T13/58
Filed: 1931-02-19
Abstract: 360,303. Testing ignition. FURNESS, H. W., 12, Durham Terrace, Paddington, and AMIES, E., 46, Priory Road, Bedford Park, both in London. Feb. 19, 1931, No. 5248. [Class 7 (iv).] The stem a of a pressure chamber b is threaded for insertion in a cylinder spark - plug opening, the sparking plug being inserted opposite a window c. The pressure of air supplied through the nozzle d is indicated on a gauge e, or limited by a blow-off valve.
Patent GB-329039-A (GB)
Title: Improvements in and relating to weighing apparatus
IPC: G01G21/00
Filed: 1929-02-16
Abstract: 329,039. Fitzpatrick, H. D., (Naamlooze Vennootschap Maatschappij tot Vervaardiging van Snijmachines Volgens van Berkel's Patent en van Andere Werktuigen). Feb. 16, 1929. Beams. - The weighbeam of a weighing-apparatus is provided with a deformation member that is deflected by the load increasingly according to increasing loads in order to keep the error due to bending directly proportional to the load. One knife-edge 9 of a beam, Fig. 1, is carried by a resilient member 6 attached to the beam by a set-screw 8. As the member 6 deflects under the influenoe of a load, it bears for an increasing part of its length on a cam-shaped surface 10 of the beam. The arrangement is such that the height H, at which the knife-edge 9 is maintained above the plane A-B containing the knife-edges 2, 5, is inversely proportional to the load; the total error due to the bending of the beam plus the bending of the resilient member will then be directly proportional to the load. In a modification. Fig. 3, the resilient member 20 is formed integral with the beam and the cam-shaped surface 10 is replaced by set-screws 14.
Patent GB-1262343-A (GB)
Title: A transducer for the testing of materials by use of ultra-sonic vibrations
IPC: G01N29/24
Filed: 1969-01-31
Abstract: 1,262,343. Ultrasonic devices. NETHERLANDS APPLIED SCIENTIFIC RESEARCH FOR INDUSTRY, TRADE & COMMERCE. 31 Jan., 1969 [2 Feb., 1968], No. 5349/69. Heading H4J. An ultrasonic transducer includes a vibration transmitter embedded within a moulded body having two flat surfaces for application to a piece to be tested, one surface being parallel to the vibration plane of the transmitter and the other surface being at an acute angle to it. As described, the transmitting transducer comprises a magnetostrictive core 5 having a plane of vibration parallel to a first vibration conducting surface 1 and at an acute angle to a second vibration-conducting surface 2. The cast synthetic resin body of the transducer incorporates reinforcing cloths 12 and 13 of fibre glass adjacent each vibration-conducting surface. The driving circuit for the transmitter comprises a capacitor 6 charged over a resistor from a high voltage source, a thyristor which is switched to conduction discharging the capacitor through a winding 10 of the core when a starting pulse is applied via a terminal R and a transformer 8, and a diode 9 to prevent resonance phenomena. An output winding 11 provides a synchronizing pulse at a terminal X. The terminals S, R, X and an earth terminal connect to a plug 17. The transmitter transducer and the receiver transducer which externally are similar are interconnected by a cord in order that they may be placed at a preset distance apart on a horizontal surface to be tested with that vibration conducting surface of each transducer, which is at an acute angle to its vibration plane, in contact with the surface. Both acute angles are equal and such that the sign of the angle equals the ratio of the propagation velocities of the vibrations in the materials of the body of the transducer and the material to be tested, e.g. equal 42À5‹ for concrete. Using this critical angle the vibrations are refracted along the surface of the material under test. A central timing circuit connected to the transmitter and receiver via the plugs measures the transmission time, variations from the average time giving a measure of the modulus of elasticity and the strength of the concrete or other material under test. The other vibration conducting surfaces of the transducers are used if vertical end surfaces of the material to be tested are accessible for use.
Patent GB-1357922-A (GB)
Title: Quill feed forward and reverse drive assembly for a milling machine or the like
IPC: B23Q11/04
Filed: 1971-02-25
Abstract: 1357922 Reverse gear.; clutch control 600 MACHINE TOOLS Ltd 9 Feb 1972 [25 Feb 1971] 5432/71 Headings F2D and F2L In a drive to a quill feed shaft 63 for a milling, drilling or boring machine, providing reversible and variable-ratio power feed with overload trip, and alternative coarse and fine manual feed, the reverse gear comprises layshafts 9, 10 on opposite sides of a main power input shaft 1, and carried by a housing, pivoted about an intermediate shaft 3 by a handle 20, to mesh helical wheels 11, 12 on the shafts 9, 10 selectively with a helical wheel 2 on the input shaft, the shafts 9, 10 being connected through a toothed idler 15, so that shaft 9 is driven forwards or reversely and drives the shaft 3 through a helical pair 13,4. Alternatively, Fig. 3, not shown, the idler train 15 is omitted, and the layshafts 9, 10 carry bevel pinions (30, 31) meshing a common bevel (24) on the shaft 3.  The shaft 3 drives an intermediate shaft 40 selectively at three ratios through a triple gear cluster 37, shifted axially by a ratio-selecting handle 43, the shaft 40 driving through a trip gear (described below) a shaft 63, carrying a pinion 64 meshing a rack on the quill feed. The shaft 63 can be turned directly by a handle 72 for manual coarse feed, and through a disengageable hand-wheel 48, helical pair 46, and the shaft 40, for manual fine feed. The overload trip, arranged in the drive between the intermediate shaft 40 and the feed shaft 63, comprises a toothed wheel 49, freely rotatable but axially fast on the shaft 40, and driven by the latter through an inclined toothed member 51, splined on the shaft 40 and held in engagement with the wheel 49 by a spring 52. The wheel 49 drives, through a wheel 61, a parallel shaft 59, carrying a worm 60, normally meshing a worm-wheel 62 on the feed shaft 63, the shaft 59 being carried in a housing 58, pivotal about the shaft 40, and held, in opposition to a spring 65, Fig. 4, in a position maintaining mesh between the worm and wheel 60, 62, by a pin 56 on an arm 53, on the housing 58, and held against the inclined toothed member 51 by a spring 57, the pin 56 being restrained by a notch in an arm 66, turning about the stationary axis 70 of a re-set handle 71. On overload the pin 56 is pushed down by the inclined toothed member 51, out of the arm notch 66, which frees the housing 58 for pivotal movement by the spring 65 about the shaft 40, de-meshing the worm 60 from the worm-wheel 62, thus breaking the drive to the feed shaft 63. At the same time the notched arm 66 is pivoted about the axis of the re-set shaft 70 by a cam 69 on the housing 58, so that the drive remains disengaged until reset by turning the handle 71.
Patent GB-1413627-A (GB)
Title: Manufacture of tubular bodies
IPC: B22D11/04
Filed: 1973-02-02
Abstract: 1413627 Automatic control of position MITSUBISHI JUKOGYO K K 2 Feb 1973 [4 Feb 1972] 5432/73 Heading G3R [Also in Divisions B3 and H5] In a method of producing a tubular body 25 by electroslag melting of a plurality of electrodes 19, the mould is raised continuously as the electrodes are consumed. The mould consists of an inner part 21 having arms 28 fixed to a nut 29 mounted on a screw-threaded spindle 30, and an outer part mounted by arms 36 and nuts 37 on screw-threaded spindles 38. The spindles 30 and 38 can be rotated by a motor 33 to raise and lower the mould. A starter piece 10 is moved vertically and also rotated by a motor 7 via gear 6, spindle 8 and table 9. The electrodes 19 are attached to a disc 16 which is fixed in the vertical direction and is rotated or reciprocated by a motor 17. In operation, the level of molten metal in the mould is sensed by means of an isotope 26 emitting 7-rays and a detector 27. The signal from the detector passes to a control box 11 which actuates the motor 7 to cause a raising or lowering of the starter piece 10 to assist in maintaining constant the said molten metal level. Lubrication between the mould and cast tube 25 is provided by a thin film 46 of slag which forms on the surface of the tube. The amount of slag then consumed is made up by an equivalent amount of slag supplied from the hoppers 42 which are raised at the same rate as the mould.
Patent GB-581185-A (GB)
Title: Process for the continuous recovery of unpolymerized monomers from butadiene copolymers
IPC: C08C1/04
Filed: 1944-03-23
Abstract: Monomers are recovered from latices produced by emulsion copolymerisation of butadiene and styrene or acrylonitile by subjecting the latex to a continuous countercurrent steam distillation in a column to bring a large surface of latex into contact with steam and rapidly vaporise the unreacted monomer and butadiene, condensing the vapours and separating the liquid monomer from condensed water.  The process may be carried out under atmospheric or reduced pressure.ALSO:Monomers are recovered from latices produced by emulsion copolymerization of butadiene and styrene or acrylonitrile by subjecting the latex to a continuous counter-current steam distillation in a column to bring a large surface of latex into contact with steam and rapidly vaporize the unreacted monomer and butadiene, condensing the vapours and separating the liquid monomer from condensed water.  The process may be carried out p  under atmospheric or reduced pressure.
Patent GB-1038302-A (GB)
Title: Improvements in or relating to valves for controlling the flow of fluids
Inventor: MARSHALL CYRIL
IPC: F16K31/363
Filed: 1964-02-11
Abstract: 1,038,302. Valves. CONFLOW Ltd. Feb. 8, 1965 [Feb. 11, 1964], No. 5591/64. Heading F2V. [Also in Division G3] A valve comprises a housing 11, Fig. 1, having an inlet 13, an outlet 14 and valve member 19 co-operating with a seat 27. The valve member 19 is connected to a piston 34 which is slidable in a cylinder 33 and of larger diameter than the seat 27. The space above the piston is connected to the inlet by passages 36, 37 and can be connected to the outlet through passages 29, 30 under the control of a pilot valve 39. The pilot valve, when engaging its seat 32 is urged on to this seat by the pressure in the space above the piston. To open the valve, the pilot is lifted to connect the space above the piston to the outlet and the inlet pressure acting on the valve member 19 opens the valve. The movement of the valve member 19 is limited by the engagement of a sleeve 31 with a bush 40 and the length of movement of the pilot valve 39 before it engages the bush 40 is greater than the movement of the valve member 19. The pilot valve is actuated by a lever 48. This lever is loaded by a weight 55, Fig. 3 (not shown), and held in the valve closed position by an engagement with a notch 58 of a lever 59. The lever 59 is normally held in the position shown by a plunger 67 when a solenoid 68 is energized. When the solenoid is de-energized, the plunger 67 is moved from engagement with the lever 59 and a second plunger 71 acts on a rocker 63 to move a rod 62 downwards which presses on the weight 55 to cause disengagement of the levers 48, 59 and the valve opens. Movement of the rod 44 of the pilot valve may actuate an electrically warning device 76. The solenoid may be actuated manually or in response to temperature or smoke when the valve is in a fire fighting installation. Several valves may be actuated by one electric switch, or one valve may be actuated by any one of several switches. In a modification, the lever 59 is rotated out of engagement with the lever 48 when an explosion pressure wave acts on a spring-loaded piston.
Patent GB-916846-A (GB)
Title: A disc-shaped cover member for centrifugal drums
IPC: D06F37/18
Filed: 1961-02-15
Abstract: 916,846. Rinsing-machines. LICENTIA PATENT VERWALTUNGS-G.m.b.H. Feb. 15, 1961 [Feb. 17, 1960], No. 5629/61. Addition to 916,845. Drawings to Specification. Class 138 (2). [Also in Group XIII] A resilient perforated cover member according to the parent Specification for engaging under the upper edge of a centrifugal drying drum provided with a rinsing tube has projections at its rim which extend in a direction at right angles to the plane of the cover member.
Patent GB-1060951-A (GB)
Title: Betaine acetylaspartate
IPC: A61K31/195
Filed: 1965-02-09
Abstract: Betaine acetyl aspartate, a novel compound having the formula <FORM:1060951/C2/1> is obtained by reacting acetylaspartic acid with betaine in methanol, distilling off the methanol in vacuo and drying the betaine acetyl aspartate produced.  Pharmaceutical compositions containing the above compound and having lipotropic action may be administered orally, parenterally or as a suppository.
Patent GB-740217-A (GB)
Title: Fuel injection systems for internal combustion engines
IPC: F02M53/06
Filed: 1954-03-01
Abstract: 740,217. Fuel injection systems. SULZER FRERES SOC. ANON. March 1, 1954 [March 27, 1953], No. 5878/54. Class 7(3) In a fuel injection system employing preheated fuel, a valve 7 is provided between the injection pump 6 and injector 10 which valve in one position blocks the
Patent GB-888861-A (GB)
Title: Improvements in and relating to analogue computers
Inventor: ANNENBERG ROBERT HENRY WATSON
IPC: G06G7/163
Filed: 1957-02-21
Abstract: 888,861. Electric analogue calculating. GENERAL PRECISION SYSTEMS Ltd. Feb. 17, 1958 [Feb. 21, 1957], No. 5894/57. Class 37. In an analogue computer for determining the thrust of an air-screw according to the formula and p = air density V = true airspeed D = airscrew diameter (constant) n = airscrew rotational speed f4 = a predetermined function k is a constant a, b, c, d are arbitrary co-efficients an input voltage representing p is applied together with a scaling factor representing D<2> to a multiplier 10 (Fig. 1), which may comprise cascaded potentiometers whose sliders are adjusted by a servo system (not shown) according to the value of V to produce an output voltage representing pV<2>D<2>. The voltage representing p is also applied together with scaling factors representing k and D<4> to a similar multiplier 12 adjusted to the value of n to produce an output voltage representing Kpn<2>D<4>; the outputs being combined, e.g. in a summing amplifier 14 to energize a potentiometer 16 whose slider is adjusted in accordance with # by a servomotor 20 (Fig. 2), to yield the analogue voltage of the required thrust. Analogue voltages scaled to represent (-cV) and (-dnD) are applied (Fig. 2) to potentiometers 22, 24 whose sliders are adjusted by the servomotor to yield voltages representing - #cV and - #dnD which are combined in a summation amplifier 26 with voltages scaled to represent aV and - bnD to drive servomotor 20 to a rotational position at which the above expression for # is satisfied; a generator 27 feeding back a stabilizing signal to the input of amplifier 26.