baber/WOPTO huggingface dataset:
Patent GB-1361905-A (GB)
Title: Earthing device for an electrostatic precipitator
IPC: B03C3/53
Filed: 1972-06-07
Abstract: 1361905 Electrostatic precipitators METALLGESELLSCHAFT AG 7 June 1972 [18 June 1971] 26625/72 Heading B2J A collecting electrode for a wet-type electrostatic precipitator comprises a plurality of hexagonal tubes 1 or shaped walls (4) Fig. 2 (not shown) assembled to form a honeycomb structure and provided with an earthing strip 2 of absorbent woven or non-woven plastics fabric material. The tubes or walls may be of PVC or other plastics material. In use, liquid which flows over the electrode, and renders it conductive, also moistens the strip 2 which earths the electrode through a suitable external connection 3.
Patent GB-389834-A (GB)
Title: Improvements in yarn guides for textile machines
IPC: B65H59/10
Filed: 1931-09-24
Abstract: In order to reduce the tension exerted upon yarns in passing over guides in the manufacture of artificial filaments by the wet or dry methods, the surface of the guide is provided with very fine scores or furrows running in a direction transverse to that of the movement of the yarn.  The furrows should be small in depth and very close together and may be produced, for example, in the case of metal guides by fine emery paper or by a file or toothed wheel.  The invention may be applied to guide materials such as, for example, glass, mild steel, stainless and chromium-plated steel, and glazed or unglazed porcelain, and may be applied to guides of any shape, either moulded or otherwise formed and fixed in position or movable.  The guides may be used for leading the thread from a wet spinning-bath, for maintaining it in place on the godet rollers, for leading the thread through the spinning-cell or through the wall of the spinning-cell, and for guiding the thread between the cell and a twisting and winding device such as a cap spinning-apparatus.
Patent GB-656911-A (GB)
Title: Improvements in automatic piloting systems for aircraft
IPC: G05D1/04
Filed: 1948-10-13
Abstract: 656,911. Automatic control systems of aircraft. OFFICE NATIONAL D'ETUDES ET DE RECHERCHES AERONAUTIQUES. Oct. 13, 1948, No. 26664. Convention date, Dec. 23, 1947. [Class 38 (iv)] In an aircraft automatic turn control system, the correct banking during a turn is obtained by the differential operation of the ailerons by signals from a gyro horizon and a pendulum mounted on the horizontal axis of the gyro inner ring. As shown, the signals generated at potentiometers 9a, 11b are applied in opposition to the aileron electric servomotor (not shown), together with a follow-up signal from a third potentiometer (not shown) which is positioned in accordance with movements of the ailerons. Upon yaw of the aircraft the pendulum 8, which is freely supported on axis 7a, swings either left or right from the neutral position and the arm 9b is moved over potentiometer 9a to develop a signal which rotates the aileron servomotor so as to bank the craft. The arm 11a, which is integral with the ring 10a remains fixed in space but the potentiometer 11b, mounted on ring 10b, rotates with the craft about the fore and aft axis and a second, opposed, signal is generated which when correct banking is effected, balances those from 9a.
Patent GB-853744-A (GB)
Title: Improvements relating to the catalytic reforming of hydrocarbons
IPC: C10G59/02
Filed: 1958-08-19
Abstract: The aromatisation or reforming of nonaromatic hydrocarbons is effected at 450 DEG -580 DEG  C. in the presence of a catalyst comprising chromium and ferric oxides on a support, preferably alumina, the amount of iron being equivalent to less than 25% mol of ferric oxide per total ferric and chromic oxides; a potassium oxide promoter may also be present.  The chromium oxide may form 5-25% by weight of the catalyst and potassium oxide 0,1-5%.  The formation of iron chromite should be avoided.  The reaction may be effected at below 50 p.s.i.g. including subatmospheric pressure, in the absence of added or recycle hydrogen at a space velocity of 0,1-1 vol./vol./hr.  The feedstock may be a straight run gasoline with an end point of 80-120 DEG C. or a platinum reformate or fraction thereof, e.g. a relatively aromatic free fraction boiling below 125 DEG  C or the raffinate from a solvent extraction, untreated fractions being recombined afterwards.ALSO:A reforming catalyst comprises chromium and ferric oxides on a support, preferably alumina, the amount of iron being equivalent to less than 25% mol. of ferric oxide per total ferric and chromic oxides; potassium oxide may also be present as a promoter.  The supported catalyst may contain 5-25% by weight of chromium oxide and 0.1-5% of potassium oxide.
Patent GB-1074659-A (GB)
Title: Improvements in and relating to automatic fluid flow valves
IPC: F04B39/10
Filed: 1964-06-29
Abstract: 1,074,659. Crank-case relief valves. ENFO ENTWICKLUNGS-UND FORSCHUNGS A.G. June 29, 1964 [July 4, 1963], No. 26712/64. Heading FIB. [Also in Division F2] A crank-case relief valve comprises, a seat 22, 23 mounted around an opening in the crankcase wall 24, a closure member 19 and a loading spring 20 located between the closure member and a guard 21. A wedge 27 deforms the final coil of the spring to ensure coaxial loading on the closure member, and the final coil is optionally of helical configuration as indicated at 28 so that it is deformed axially when the valve is assembled.
Patent GB-519047-A (GB)
Title: Improvements in or relating to the manufacture of synthetic rubber-like materials
IPC: C08K5/18
Filed: 1938-09-13
Abstract: 519,047. Rubber-like materials. I.G. FARBENINDUSTRIE AKT.-GES. Sept. 13, 1938, No. 26742. Convention date, Sept. 13, 1937. [Class 2 (iii)] Emulsion polymerisates of butadienes-1, 3, including those of isoprene and 2-chlorobutadiene or mixed emulsion polymerisates of a butadiene-1, 3 and other polymerizable compounds such as styrene or acrylic acid nitrile, are stabilized by incorporating therewith in an unvulcanized state an N-aralkylnaphthylamine, e.g., N-dibenzyl-#-naphthylamine or monobenzyl-naphthylamine, which may be made into a paste with water and sodium di-iso-butylnaphthalene sulphonate. The Specification as open to inspection under Sect. 91 gives an example in which dibenzyl-#- naphthylamine is used as an emulsion with benzene and a solution of sodium oleate and states that polymerisates of dimethylbutadienes may be stabilized in this way. This subject-, matter does not appear in the Specification as accepted.
Patent GB-463629-A (GB)
Title: Improvements in or relating to brakes
IPC: F16D65/14
Filed: 1935-09-27
Abstract: 463,629. Brakes. PETIT, J. E. Sept. 27, 1935, No. 26744. Convention date, Sept. 27, 1934. [Class 103 (i)] A brake comprises a number of friction segments or shoes applied to a drum by leveractuated eccentrics, each eccentric engaging the end of one shoe, and the other end of the shoe resting upon that end of the adjacent shoe which is engaged by an eccentric, the levers being operated for instance by an annular disc coaxial with the drum and the arrangement being such that the ratio of the pressure applied to the disc, to that applied to the shoes is substantially constant irrespective of wear of the shoes. Each shoe 5 has at one end a collar 8 which freely surrounds an eccentric 1 rotatable upon a pin 2 extending between a pair of discs 4 forming part of a fixed member A. The other end of the shoe has a hook-like part 17 which embraces the collar 8 of the adjacent shoe. As shown in Fig. 2, there are two sets of shoes A<1>, A<2> disposed side by side and operated by the same eccentrics. Each eccentric is secured to an operating arm 14 having a pin engaging a radial slot 15 on an annular disc 10 rotatably mounted upon the member A. The disc 10 may be turned for example, by a pin 16 or by a pinion geared to a toothed sector rigid with the disc and carrying a pulley about which is wound an operating cable. When the ring is turned the shoes are thus displaced radially towards the drum, one end of each shoe being moved directly by the eccentric and the other end by the adjacent end of the other shoe. Each lever 14 is at right angles to the line joining the centre of the eccentric to its centre of rotation and as the radius of the drum is large compared with that of the arm of the lever, the ratio of the pressure applied to the disc 10 to that by which the shoes are applied to the drum is substantially constant irrespective of wear of the shoes.
Patent GB-925630-A (GB)
Title: Nuclear magnetism well logging apparatus
IPC: G01V3/32
Filed: 1959-08-05
Abstract: 925,630. Gyromagnetic well-logging. CALIFORNIA RESEARCH CORPORATION. Aug. 5, 1959, No. 26758/59. Class 37. In an apparatus for detecting the presence of a natural hydrogenous fluid in association with another hydrogenous fluid in a borehole, a coil 15, Fig. 1, the length of which is great compared with its width is used to polarize the protons of the water and oil in an earth formation around a borehole 43 in a direction at right-angles to the earth's field, the relaxation time of the precession which occurs when the polarizing current is suddenly switched off, being determined from an oscillogram on cathode-ray tube 30. A camera 26, Fig. 5, is arranged to make a permanent record of the oscillogram, and the reading on sonde depth indicator 28. D.C. power from source 11 is applied to the coil through a fast electronic switch 13 which comprises a triode having a high resistance between anode and cathode, under the control of a square-wave pulse generator 17, the output of which may be varied in respect of the negative pulse duration, and the interval between pulses. The pulses serve also to gate preamplifier 19 which is gated off until the D.C. polarizing field returns to zero, the signal from processing protons being picked up for display by an additional coil 21 or by the coil 15 when switched for pick-up by a vacuum switch. In general, water with magnetic impurities has a much shorter relaxation time than oil and in certain circumstances paramagnetic impurities, such as molecular oxygen, may be introduced into the drilling mud as a gas or a compound such as hydrogen peroxide which is capable of liberating molecular oxygen, so that the relaxation times of the mud and oil are clearly distinguishable. Alternative impurities include magnetite. The molecular paramagnetic materials may be slightly ionized. The same apparatus may be used to measure the polarization time as an alternative to the relaxation time by a study of the signals picked up from a series of polarizing pulses of varying duration or the density of responsive protons from which the liquid content or porosity of the earth formation can be determined, in the following manner:- (i) Determining the instrument constant by immersion in a large quantity of magnetically uncontaminated water at S.T.P. (ii) Determining the density of protons in the drilling fluid by use of the instrument or an alternative laboratory method; and (iii) Analysing a borehole reading. Wave-form analysis is described, and a mathematical basis for the method is included.
Patent GB-617996-A (GB)
Title: Improvements in steam and like valves
IPC: F16K1/14
Filed: 1946-09-06
Abstract: 617,996. Valves. FRANKS & SAUNDERS, and FRANKS, A. Sept. 6, 1946, No. 26873. [Class 135] In a screw-down valve for pressure fluids having a ball 9 acted on by a screw-operated spindle 16 and arranged to co-operate with an annular valve seating 8, a fluid-tight joint is made between the ball and the valve housing in all positions of the former by a flexible annular member 19 clamped in the housing and embracing a zone of the ball. The member 19 may be of reinforced synthetic rubber or of a plastic material which retains its flexibility throughout the range of temperatures to which it is subjected. It is T-shaped in radial section, the web 22 thereof being clamped between a flange 12 on a bonnet 13 and a similar flange on the valve housing 1 by bolts (not shown). The flange 23 of the T-shaped section is curved inwardly to embrace the ball, leaving enough of the ball exposed to engage the spherical seating 8 and a flanged stem 24 held in an undercut part of the spindle 16. The flange 23 is also formed so that the ball may be inserted by flexure of the flange. The spindle acts on the stem 24 through a loose ball 27. The stem 24 may be integral with the ball 9. The screwed spindle 16 shown carries a hand wheel 17, but in other forms, an axially fixed rotatable hand wheel may co-operate with a non-rotatable spindle.
Patent GB-650862-A (GB)
Title: Improvements relating to the manufacture of paving and wall-facing tiles from cementitious materials
IPC: C04B40/00
Filed: 1948-10-18
Abstract: Paving or wall-facing tiles are made by preparing separately differently coloured cementitious mixtures, arranging the mixtures in a series of layers, slicing the mass transversely to the layers, pressing the slices without heating and then drying and hardening. The ingredients of the different mixtures are ground so as to pass a sieve of 1000 meshes per square centimetre, and the mix is then slaked with 15 per cent water.  Alternate layers of the mixtures of 3 to 4 millimetres thick are placed in a mould, each layer being lightly rammed, and the mass is then cut vertically.  Each slice, after crumbling, if desired, is pressed at at least 150 kilograms per square centimetre.  They are then exposed to the air in a damp place sheltered from the sun and from sudden temperature changes, and are subsequently polished.
Patent GB-782230-A (GB)
Title: Improvements in or relating to magnetic recording apparatus
IPC: G11B5/03
Filed: 1955-09-22
Abstract: 782,230. Magnetic recording apparatus. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Sept. 22, 1955 [Sept. 25, 1954], No. 27079/55. Class 40 (2). [Also in Group XL (c)] A magnetic recording apparatus comprising a H.F. oscillator for erasing and premagnetizing the magnetic recording medium embodies an auxiliary capacitor 7 which by a switch 6 can be connected into or out of the oscillator circuit to set the circuit frequency to alterna. tive values. Should the apparatus embody or be operated near a radio receiver, whistle interference due to beating of the R.F. carrier with harmonics of the oscillator at one frequency can be avoided by switching to the other frequency. The switch 6 may be combined with the knob of a potentiometer controlling the modulation of the signal to be recorded.
Patent GB-318598-A (GB)
Title: Improvements in closures for paper and like bags
IPC: B65D30/18
Filed: 1929-09-06
Abstract: 318,598. Triggs, W. W., (St. Regis Paper Co.). Sept. 6, 1929. [A Specification was laid open to inspection under Sect. 91 of the Acts, Sept. 7, 1929]. Paper and like bags.-In an end closure for a block-bottom bag comprising inner or end flaps 23, 24, Fig. 2, and outer or side flaps 25, 26, the inner flaps constituting connecting portions between the outer flaps, the side flaps are secured together by fastening devices passing through them. If the bag is a multi-ply one, the fastening devices pass through all the layers. A row of staples 27 secures the edge of the flap 26 to the flap 25 which has its edge secured by a second row of staples 28; a staple 29 may secure the flaps 25, 26 to the end flap 23, which may, however, serve as a filling valve and be made longer than the flap 24 for this purpose. Sewing may replace the stapling and if the flaps 25, 26 overlap only slightly, a single line of stapling or sewing may be used. In making the closure, the gussets of a bag are opened out for a short distance from the ends of the bag tube and the end flaps 52, 53, Fig. 13, folded inwards. Adhesive 55 is applied to the side flap 57 and the end flap 53 after which the side flap 56 is folded inwards about a former bar 54 and the side flap 57 is folded thereon. Preferably the bar 54 extends beneath the end flap 53. The edges of the side flaps are now sewn or stapled, leaving the flap 52 as a filling valve. If stapling is used, both ends of the bag tube may be stapled simultaneously. Specification 326,057 is referred to.
Patent GB-691292-A (GB)
Title: Improvements in or relating to printing accessories for supporting sheets in printing processes
IPC: B41N10/04
Filed: 1947-10-09
Abstract: 691,292. Printing-machines. MINNESOTA MINING & MANUFACTURING CO. Oct. 9, 1947 [Jan. 13, 1947], No. 27137/47. Addition to 642.915. Class 100(ii) [Also in Group VIII] - Impression surfaces.-In a printer's blanket as described in the parent Specification wherein is provided a uniform facing layer of globular bodies or beads 9 secured by a bonding layer 11 to a flexible backing sheet 10, the backing sheet consists of or includes one or more continuous cushioning layers of a rubbery polymer material. One or more layers 12 of shear-resistant material such as woven fabric, certain papers, vulcanized or hydrolized. fibres, or tough glass fibre sheets may be incorporated in the blanket. An ink-repelling coating 21 may be applied to the beads 9, such coating comprising e.g. rubbery polymer material dissolved in hexone. The cushioning layer may comprise mixtures of synthetic and natural rubbers with resins to give adhesive properties; resins such as vinyl resins, acrylates or silicones may be used. An open-mesh fabric coated on both surfaces with the rubbery polymer may be employed. Among the specific examples given are (1) rubbery butadiene-acrylonitrite 100 parts by weight; compatible heat-reactive phenol resin 75 parts; plasticizer 17 parts; pigment (carbon black) 5 parts. The plasticizer may be diactyl phthalate, dibutyl sebacate or tributoxy ethyl phosphate. (2) Natural rubber 100 parts by weight; zinc oxide 5 parts; stearic acid 1 part; antioxidant 1 part; filler (channel black) 40 parts; delayed accelerator 0.25 parts; primary accelerator 0.75 parts; sulphur 3 parts. The antioxidant may comprise phenyl alpha naphthylamine and the delayed accelerator 2, 2- benzothiazyl di-sulphide. Cushioning layers may be employed having as basic ingredients Neoprene, " Thiokol " (R.T.M.), " Buna " (R.T.M.), plasticized polyvinyl chlorides, butyrals or silicon rubbers. Examples of suitable compositions 11 for bonding the beads 9 to the backing are given including one comprising Neoprene 10 parts; phenol-aldehyde resin 15 parts; diactyl phthalate 5 parts; zinc oxide 0.5 parts; magnesium oxide 0.4 parts all dissolved in butyl acetate. The beads 9 are immersed in the bonding 11 to a depth of not less than their radius. Specification 677,512 also is referred to. According to the Speciffcation as open to inspection under Sect. 91, instead of beads 9, a rubbery layer may be applied to the cushioning layer and embossed to form a hard discontinuous surface of minute convex or pyramidal protuberances. Also the use of glue-glycerine compositions for the backing is described. In addition, the material may be used as wipers for intaglio printing-machines, as back greys in textile printing machines, or as bands in bronzing machines. This subject-matter does not appear in the Specification as accepted.
Patent GB-1279070-A (GB)
Title: Pipe with an ejector piston
Inventor: DOUAY ALPHONSE GEORGES
IPC: A24F1/00
Filed: 1971-04-19
Abstract: 1279070 Self-cleaning smokers' pipe AG DOUAY 19 April 1971 [23 April 1970] 27243/71 Heading A2M The pipe comprises a head part 1 in which is made the bowl 3 of the pipe and the inhaling channel 10, the pipe comprising in addition a movable perforated partition 12 placed inside the bowl 3, the partition 12 delimiting with the base of the bowl a condensation chamber 23 in which the inhaling channel 10 opens out and which partition 12 is connected by a manoeuvering rod 21 to a push-rod 20 housed in the bowl 3 and accessible from the outside, so that the partition 12 acts as an ash-ejecting piston.
Patent GB-1291913-A (GB)
Title: Control mechanism for a hydraulic transfer of power
IPC: F15B11/02
Filed: 1970-06-05
Abstract: 1291913 Control valve INTERNATIONAL HARVESTER CO mbH 5 June 1970 [6 June 1969] 27260/70 Heading A1P A mechanism for draft and position control of implements hitched to tractors controls transfer of power along the pressure line 28, 45 between pump 25 and actuator 47 and comprises a main spool valve, having main spool 12, which contains a chamber 60 which is connected to the pressure line by a throttle 36 and bore 38. The chamber contains a smaller spring-biased spool 61 operable between two limit positions, one in which bore 38 is closed, the other in which bore 38 is connected to the discharge bore 35. Operation of Position Control. Hand lever 24 is raised moving spool 12 to the right via lever 21 and channels 51, 44. This allows fluid from pump 25 to reach ram 47 via line 45 and valve 46 so that rockshaft 16 lifts the lower links of the hitch. Rod 17 and consequently, spool 12 will therefore move leftwards due to spring 70 so that fluid is pressurised in blind bore 65 causing spool 61 to move leftwards (Fig. 2). If spool 12 moves so far left (Fig. 1) that bores 66 and 67 are no longer closed, pressure on spool 61 is reduced by bore 66 and spool 61 jumps right, reducing pressure in line 45 so that check-ball valve 46 closes rendering ram 47 fixed. Valve 42 opens and discharges chamber 38 so that piston 31 moves to the left, relieving the pressure side of the pump. This situation is shown in Fig. 1. If, by lever 24, the spool 12 is moved farther left, piston 55 may be connected to pump via channel 52 and will then open valve 46, allowing ram 47 to exhaust. Spool 12 will then move right, due to rod 17, until channel 51 is isolated from channel 52 when the position of Fig. 1 again occurs. If lever 24 is raised sufficiently, valve 29 will close allowing fluid to pass from pump to ram via channel 52, thus accelerating the action of the ram. Draft control is effected in a similar way but control is by lever 14 and adjustment by rod 6 and lever 2. Overload pressure relief is by means of valve 40.
Patent GB-279104-A (GB)
Title: A process of, and apparatus for, producing and regenerating activated carbon
IPC: C01B31/08
Filed: 1927-10-14
Abstract: 279,104. Naamlooze Vennootschap Algemeene Norit Maatschappij. Oct. 16, 1926, [Convention date]. Electrode furnaces.-Carbon is activated or reactivated, or active carbon is improved, by subjecting it in the wet state to an electric current which heats it to incandescence. Electrolytes, e.g. sodium chloride, may be added and are decomposed aiding the reaction. Powdered or granular carbon may be mixed with coarser carbon, e.g. coke, before heating. In one form, Fig. 1, the carbon is fed by a hopper 10 into a chamber 1 through which it is raised by a worm 9. The carbon is brought to incandescence by current from electrodes 2 and falls into troughs 4, along which it is fed by worms 5. The troughs 4 may be surrounded by cooling jackets 6 containing water. Alternatively, the carbon may be discharged into a jacket surrounding the chamber 1 where it preheats the fresh carbon. The gases &c. produced pass off through a pipe 8. The hopper 10 is fed with carbon by a worm 11 working in a trough 12. Means may be provided, e.g. a more powerful horizontal worm conveyer, to force the carbon through conveyer 9 during the upward feed. A number of chambers 1 may be set up side by side, and common operating means employed. In another form, Fig. 3, for treating coarser carbon, the material is fed continuously into a vertical chamber 20 having a central electrode 22 and an annular electrode 23 and a refractory lining 21, and is discharged through a rotary valve 25 into a bin 26. Gases pass off through pipe 28 and steam may be introduced through pipe 27. The chambers 1, 20 and worm 9 may also be arranged horizontally. Two or more sets of electrodes may be used in series to give a stepwise heating of the carbon. The material may be preheated, before passing to the chambers 1, 20, by passing through metal grid or open fabric electric resistances.