baber/WOPTO huggingface dataset:
Patent GB-677952-A (GB)
Title: Improvements relating to suction cleaners
IPC: A47L5/32
Filed: 1950-09-25
Abstract: 677,952. Suction cleaners. HOOVER, Ltd. Sept. 25, 1950 [Sept. 28, 1949 ; Sept. 28, 1949 ; Sept. 28, 1949 : Sept. 28, 1949], No. 23431/50. Class 8 (i) A suction cleaner of the handle propelled type having a rotary agitator 22 driven by a belt 23 from a driving pulley 24 on an extension of the fan shaft 15 projecting through the fan eye 18 and, for " off-the-floor " cleaning, adapted to receive a converter 29 which fits over the driving nulley, has means for removing the belt from the pulley, comprising at least one hook 30 carried by a member 31 slidable in a direction generally along the length of the belt and which is also arranged to move in a generally transverse direction whereby the hook may first be slid to engage the belt and lift it from the pulley, then moved to lift the belt clear of the end of the fan shaft, and finally slid back towards its initial position to a position outside and clear of the converter there to retain the belt on it while the converter is in use. A pair of hooks 30, mounted on a shaft 31 slidable in channel guides 32 in the sides of an opening 27 for the converter, are rotated anticlockwise and moved upwardly in the guides by a handle 47 so as to engage the belt and lift it from the pulley. The ends of the shaft pass through slots 34 in the guides and the hooks are returned to their lower position, when the handle is released, by springs. In another embodiment, Fig. 7, the hooks 63 are formed in a wire frame 62 slidable in side guides in a hinged cover 28 for the opening. The frame also forms a catch for the cover and is manipulated to cause the hooks to engage the belt and then to open the cover.
Patent GB-442292-A (GB)
Title: Improvements in or relating to dyeing
IPC: D06P1/66
Filed: 1934-08-14
Abstract: Basic dyes, dyeing with.--Dyeing with basic dyestuffs is carried out in presence of a substance giving rise to cations capable of reducing the surface tension, e.g. a quaternary ammonium compound carrying an aliphatic residue containing at least 8 carbon atoms, and a smaller quantity of a substance giving rise to anions capable of reducing the surface tension, e.g. a salt of a sulphuric acid alkyl ester containing an aliphatic residue having at least 8 carbon atoms. Specified substances giving rise to the desired cations are dodecylpyridinium sulphate, its homologues and substitution products, and the corresponding halogenides, ammonium compounds derived from diamines substituted by fatty acid or alkyl residues containing at least 8 carbon atoms, and triethylcetylammonium iodide.  In an example, a viscose artificial silk, mordanted with "Katanol" (Registered Trade Mark) ON is dyed by treatment for \ba1/2\be hour in a bath at 70 DEG  C. containing Malachite green, 1 gram per litre of dodecylpyridinium sulphate and 0,2--0,8 grams per litre of the sodium salt of laurylsulphuric acid ester.  The Specification as open to inspection under Sect. 91 comprises also (1) the use of the quinoline and isoquinoline compounds corresponding to the above pyridine compounds, (2) the use of the compounds containing unsaturated high molecular aliphatic residues, e.g. octodecenyl or undecenyl residues, in place of the saturated residues (3) the use of triethylcetylammonium bromide, (4) the application of the process to printing.  This subject-matter does not appear in the Specification as accepted.
Patent GB-612501-A (GB)
Title: Improvements in or relating to plain or line wovern fabrics constituting gauzy fabrics
IPC: D03D15/00
Filed: 1946-10-25
Abstract: 612,501. Woven fabrics. TOBLER, F. Oct. 25, 1946, No. 23619/47. [Class 142(iv)] Plain or leno woven "gauzy" fabric is made from non-agglutinated artificial monofils of 10-400 denier, used in the state in which they emerge from the spinning means.
Patent GB-826397-A (GB)
Title: Improvements in or relating to electrical contacts
Inventor: DAVIDSON IAN ARTHUR
IPC: B21D37/08
Filed: 1957-07-26
Abstract: 826,397. Making electrical components. BELLING & LEE Ltd. July 26, 1957, No. 23704/57. Drawings to Specification. Class 83 (2). [Also in Group XXXVI] The subject-matter of this Specification is substantially the same as that described in Specification 826,398, but the claims differ.
Patent GB-1426600-A (GB)
Title: Method of etching a semiconductor element
IPC: H01L21/302
Filed: 1973-05-18
Abstract: 1426600 Etching MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 18 May 1973 [18 May 1972] 23736/73 Heading B6J [Also in Division H1] A compound semi-conductor body comprising N and P type layers 2, 3 successively deposited, e.g. by liquid phase epitaxy, on an N type substrate 1 is gas-etched to a mesa-form through a mask, e.g. of photo-etched SiO 2  formed by heating a spun-on coating of silicon acetate, using an etching gas mixture of NOCl and Cl 2 . The etching gas may be obtained by direct mixing of the two constituents, but preferably it is formed by reacting together HNO 3  and HCl at 120‹ C., the reactants being mixed as gases, as solutions which are subsequently vaporized, or by bubbling the gaseous form of one through a solution of the other. Water vapour formed in the reaction may be removed to form a completely dry etching gas, but a small quantity of water vapour may be left in or. introduced into the mixture to modify the orientation-dependence of the etching process. A carrier gas of N 2  or N 2  + H 2  is used with the etching gas. The structure shown constitutes GaP light-emitting diodes, having upper electrodes 4 of Au-Zn or Au-Be and a substrate electrode 7 of Au-Si or Au-Sn. Other semi-conductors mentioned are GaAs, InP, InAs, InGaP, GaAlAs and GaAsP.
Patent GB-1382124-A (GB)
Title: Scanners for image reproduction
IPC: H04N1/203
Filed: 1972-05-19
Abstract: 1382124 Copying by scanning CROSFIELD ELECTRONICS Ltd 15 May 1973 [19 May 1972] 23751/72 Heading H4F Signals from an analysing head 23 in facsimile apparatus are used to modulate a laser beam which is scanned over an output film 28 carried on a stationary cylinder 29 by a pentaprism 27 which is moved axially on a nut 42 mounted on a lead screw and is rotated, via synchro-torque transmitter 14 and receiver 35, or a belt drive, by a motor 16. Film 28, which may be carried on the outside of a transparent cylinder 29 or on the inside of the cylinder, is one of four films circumferentially-spaced on cylinder 29, to provide cyan, magenta, yellow and black separation films, the signal fed to modulate the laser beam being line sequential. The colour signals derived from analysing head 23 are fed to processing circuitry, which includes a store (64, Fig. 3, not shown) which is addressed by the derived signals to provide output signals which have been previously calculated to provide the desired separation films, these output signals being rendered linesequential and fed to the laser modulator. The processing circuitry includes one (or two) store (56) into which the signals corresponding to each line (or, for each store, each second line if there are two stores) are written under the control of signals from a photodetestor 18 and pick-up coil 20, the signals being read out under the control of signals from a photodetector 39 and pick-up coil 41, the write rate controlling the degree of enlargement or reduction of the output images on the separation films relative to the original. A differential synchro 36 enables adjustment of the vertical positions of the output images on the separation films, for example to assist in page make-up operations. Cylinder 29 may carry a fifth film in the form of a mask, for example to insert lettering in a picture, the laser beam being of full intensity when the mask is being scanned, the reflected laser light being detected by a ring of photodetectors (102, Fig. 4-6, not shown) attached to nut 42, the resulting signals from each line scan being stored and read out during the four following line scans to control the reproduction of the equivalent line of the four separation films. The pentaprism 27 may be rotated six times faster than is analysing cylinder 10, each scanned line being reproduced six times, to reduce possible moirÚ interference.
Patent GB-672276-A (GB)
Title: Improvements in portable jacks
IPC: B66F13/00
Filed: 1949-09-15
Abstract: 672,276. Screw jacks. BARRETT, GREENE & CO., Ltd., and GREENE, A. H. B. Sept. 15, 1949. No. 23788/49. Class 78 (iii). [Also in Groups X and XXIII] A jack comprises an internally threaded sleeve 10 engaging threads on tubes 13, 14 in which slide adjustable members 15, 16 carrying forged steel jaws 17, 18, the arrangement being such that the jaws are extended or retracted on rotation of the sleeve by a lever 41 and ratchet gearing. A ratchet wheel 25 is formed integrally with the sleeve 10 and is rotated by a spring loaded pawl 33 arranged radially in a housing member 26 which is free to rotate about the sleeve axis, but is held from axial movement by a flange 27 and a removable retaining ring 29 which engage the side faces of wheel 25. The pawl may be rotated axially through 180 degrees by a knob 37 so that it drives the sleeve in the opposite direction, and a key 38 on this knob holds the pawl in its two driving positions. Members 15, 16 are secured in their adjusted positions in the tubes 13, 14 by taper pins 21, 22. In particular, the jack is intended for use in straightening the sides of damaged metal pit tubs, shoring up a mine roof and separating or drawing together heavy loads. Specification 607,763 is referred to.
Patent GB-444459-A (GB)
Title: Apparatus for the electrical treatment of gaseous fluids
IPC: B03C3/36
Filed: 1935-08-27
Abstract: 444,459. Treating gases with electric discharges. LODGE-COTTRELL, Ltd., George Street, Parade, Birmingham.- (Research Corporation of New York; 405, Lexington Avenue, New York, U.S.A.) Aug. 27, 1935, No. 23948. [Class 39 (i)] In apparatus for the electrical treatment of gases, such as electrical precipitation apparatus, in which the gases under treatment are passed between opposed electrodes maintained at a relatively high potential in respect to one another, one of the electrodes is divided into two or more compartments forming conduits by which the gases are led into and out of the area of treatment in parallel directions, while the gas when in the treating area flows in a direction at right angles thereto. In one arrangement shown in Fig. 1, a casing 2 encloses a cylindrical collecting electrode 3 and a surrounding system of discharge electrodes 4. The electrode 3 is divided by the diagonal partition 9 into a compartment 10 closed at the top and open at the bottom to the inlet flue 14, and a compartment 11 closed at the bottom and open at the top to an outlet flue 15. Vertical rows of openings 12, 13 diametrically opposite connect the interior of the casing with the compartments 10, 11. In a modification, more than two compartments may be provided. Fig. 6 shows another arrangement in which the collecting electrodes are in the form of flat tubes 31 alternating with planar groups of discharge electrodes 38. The tubes 31 are divided by partitions 36 into two compartments 34, 35 opening into the treating space at their opposite sides and communicating respectively with the inlet and outlet flues. In a modification of this arrangement, the compartments 34 and 35 are made of separate tubes with a series of rapping devices disposed between their adjacent ends. Fig. 10 shows another arrangement. The gases are led into and out of the casing 51 by conduits formed of two side walls 52 and an oblique partition 53. In the treating zone, the gases pass between plate electrodes 58 and wire electrodes 59, and, to ensure uniform distribution, the plate electrodes are of diminishing length towards the centre. The conduits may be formed in the discharge electrode as shown in Fig. 11, in which this electrode is made as a cylinder with radial fins 82 and is in electrical connection with the casing 72 and the earth. Compartments 75, 76 formed by a partition 77 communicate with the space between this electrode and the collecting electrode 71 by diametrically opposite openings 80, 81, and are also in communication respectively with the inlet and outlet flues 78, 79.
Patent GB-426263-A (GB)
Title: Improvements in and relating to coil-winding machines and the like
IPC: B21C47/24
Filed: 1933-08-30
Abstract: 426,263. Coil-winding machines &c. OWEN, C. J., 308, Uttoxeter Road, Mickleover, Derbyshire, and DICONA Ltd., Brookside Mill, Boyer Street, Derby. Aug. 30, 1933, No. 24006. [Class 120 (ii)] A coil-winding machine or the like has a reel carrier provided with a rotatable shaft carrying one or more reel-holding frames each of which consists of at least two similar portions each having a supply reel spindle removably carried therein and the portion extending from the shaft in opposite or different directions so that each may be brought into operative position by rotating the shaft. As shown the reel-holding frame 12 is of double rectangular form, each portion 11 consisting of two parallel side members clamped to the shaft 2 rotatable in a base 1, the spindles 14 for the supply reels 16 being removably held between conical centring pieces 15. The shaft 2 is rotated by a lever 6 projecting from a boss 3 thereon and is held in position, when a portion of the frame 12 has been moved into alignment with the winding- apparatus, by a spring-controlled pivoted lever 4 engaging one of a series of slots 5 in the boss 3. The carrier is provided with two or more similar holders 34 for removably supporting a wound coil removed from the winding apparatus or a holder or mandrel ready for insertion therein, the holders being carried by arms 33 fixed to the shaft 2. The wire from a reel 16 passes over a pulley 25 to the winding apparatus and the pulley 25 is carried by an arm 24 on a spindle 23 carrying a cam 22 engaging an arm 21 extending from a pivoted brake shoe 17 so that excessive tension in the wire causes the cam 22 to rotate and releases the brake shoe from a brake-drum 18 on the reel-carrying spindle 14; the brake-shoe is pressed against the drum 18 by a spring 18<1> adjusted by a screw 19, and the spindle 23 is controlled by an adjustable spring 29. Spring means may be provided to give the shaft 2 a slight automatic rotary movement as the lever 4 is withdrawn from a slot 5.
Patent GB-1473953-A (GB)
Title: Connectors for conveyor belts
IPC: F16G3/04
Filed: 1974-05-30
Abstract: 1473953 Belt fastenings MATO MASCHINEN - UND METALLWARENFABRIK CURT MATTHAEI GmbH & CO KG 30 May 1974 [1 June 1973] 24096/74 Heading F2Q In a hinged belt fastener composed of a series of plates 1 attached side-by-side on both sides of each belt end 8, 9, the projecting loop portions 2, 3, become interdigitated in order to receive jointly a common hinge pin (not shown), and the cross-section of each loop portion 2, 3, at least in the region 10, 11, adjacent each hinge pin, is either as Fig. 2, having base 14, sides 15, 16, and an arcuate contour 17, or as Fig. 3, having base 14, sides 15, 16, and a triangular contour composed of symmetrical sides 19, 20, with a rounded apex 18. The rounded or chamfered external contours thus presented by the loop portions facilitate interdigitation during assembly, in the event of any local misalignment of loops and gaps, as illustrated in Fig. 4. The plates 1 may be manufactured in a known manner whereby material portions otherwise redundant from gaps between loop positions 2, 3, become displaced and provide for the loop portions 2, 3, a final thickness of cross-section greater than the material thickness of the legs 4.
Patent GB-378218-A (GB)
Title: Improvements in and relating to liquid boilers
IPC: F22B3/02
Filed: 1931-08-27
Abstract: 378,218. Mercury-vapour and like generators. BRITISH THOMSONHOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Coulson, B. P. ; 11, North Church Street, Schenectady, New York, U.S.A.) Aug. 27, 1931, No. 24142. Convention date, Aug. 28, 1930. [Class 122 (iii).] In boilers of the kind described in Specifications 319,219 and 319,220, [both in Class 122 (iii), Steam engines, Kinds &c.], the tubes 3 are formed of sections welded together at 15 ; the upper ends of the tubes where they pass through the lagging 20 are restricted in diameter. The tube 21 is rigidly secured in the passage 17 and is provided at its outer end with a sleeve 22 spaced from the core passage 6 so that the hydraulic head of mercury in space 23 acts as a seal. An annular projection 24 limits the flow of liquid. The core is held in spaced relation with the tube by projections 12, 13. The core is also built up of parts welded together. The baffle-plate is held in spaced relation to the drum by projections.
Patent GB-781631-A (GB)
Title: Method and apparatus for storing liquified gases
IPC: F17C3/08
Filed: 1955-08-22
Abstract: 781,631. Storing gases under pressure. UNION CARBIDE & CARBON CORPORATION. Aug. 22, 1955 [Sept. 10, 1954], No. 24159/55. Class 8(2). A liquefied gas, e.g. oxygen container 11 mounted within and thermally insulated from a jacket 12 through which extends a filling and discharge tube 22 has a refrigerant container 28 in thermal contact with the liquid oxygen L ; the refrigerant being capable of change of state, e.g., from solid to liquid accompanied by absorption of heat at a temperature above the normal storage temperature of the liquid oxygen but below that at which the gas pressure is sufficient to open an automatic relief valve 25. A suitable refrigerant is dichlorodifluoromethane which is introduced as liquid through a duct 29 closed by a burstable disc 30. The container 28 is supported by braces 31 and container 11 by a tripod 16 within the jacket 12 which may be evacuated or filled with insulation. Charging with liquid oxygen is effected through the valved duct 22 until liquid issued from a trycock valve 27 and discharging is also effected through the duct 22 leading to a line 33 where it is joined by oxygen gas in a duct 40 connected to a gas release duct 24. The combined liquid and gaseous oxygen then traverses a vaporizing coil 35 surrounding the jacket 12 and is discharged as gas through a valved coupling 38. Alternatively the vapourizing coil is located within the jacket 12. In a modification the refrigerant is of the evaporative type, e.g. liquid nitrogen for use with argon in the container 11; the burstable disc being replaced by an automatic pressure relief valve 44<SP>1</SP>, Fig. 3 (not shown).
Patent GB-225968-A (GB)
Title: Improved sound-emitting sinker for sounding depths
IPC: G01S11/02
Filed: 1923-09-28
Abstract: 225,968. Baron, H., (Signal Ges.). Sept. 28,1923. Projectiles; f u z e s. - Comprises improvements in the firing mechanism and safety-devices of explosive sinkers used in determining the depth of the sea. The bolt 4 is normally retained by the arm 9 of a lever which is pivoted at 8 and is normally retained by one arm of a second lever 10 pivoted at 19 and held by a hook 11 carried by the cap 2. The mechanical advantage of the lever system may for instance be 10 : 1 or 100 : 1. When the sinker is falling the upward pressure of the water on the cap 2 is neutralised by the spring 12, but when it reaches the bottom of the sea the cap is turned about its pivot 13, the bolt 4 is consequently released, and the cartridge 6 is exploded. The safety device comprises a spring 14 the legs of which, before the sinker is dropped into the water, are interposed between the cap 2 and body 1. in the position shown in Fig. 2. They are held in this position by a strip 15 of fibrous material such as paper impregnated with a soluble substance such as salt; this is softened by the water, when the legs spring apart to the position 14<1>, in which they register with notches 17 and permit the cap to be closed.
Patent GB-1010927-A (GB)
Title: Improvements relating to convertor systems
Inventor: HAMMOND ROYSTON ALFRED
IPC: H02M7/04
Filed: 1961-07-05
Abstract: 1,010,927. Ooriverting. ENGLISH ELECTRIC CO. Ltd. July 3, 1962 [July 5, 1961], No. 24226/61. Drawings to Specification. Heading H2F.  In a controllable converter system comprising a number of bridge-connected converters operating in series or parallel the elements of each bridge associated with one D.C. line are considered as a group, and a number of groups, one from each converter, are controlled together at different points in the cycle to the remaining groups. The Specification includes a table showing various arrangements, the frequency of the ripple produced in the D.C. when rectifying. The bridge elements may be mercury arc valves or silicon-controlled rectifiers.
Patent GB-997650-A (GB)
Title: Beater grate attachment for threshing and separating mechanism
IPC: A01F12/24
Filed: 1964-06-11
Abstract: 997,650. Threshing machines. DEERE & CO. June 11, 1964 [June 13, 1963], No. 24274/64. Heading A1F. Relates to a threshing machine of the kind having a body 10 with spaced-apart side-walls 18 spanned by a threshing cylinder 20 journalled therein above a concave 26, below which is a grainreceiver 30, a rotatable beater 34 spanning the side-walls upwardly and rearwardly of the cylinder and above a straw-rack 42 lying above the grain-receiver. According to the invention, a grating 40 is fixed to the rear of the concave to extend below the beater but above the forward end of the straw-rack, the grating having a plurality of transverse baffles 54 parallel to the beater-axis 36 and spaced apart to enable the downward escape of grain while the straw is moved rearwardly on to the straw-rack. The grain-receiver comprises an endless apron running along the floor of the body. The grating 40 is pivoted to the rear of the concave, at 62, and has pin-and-slot mountings 68, 70 on the side-walls at the rear. The front of the concave has U-shaped brackets which embrace cams on a rock-shaft 86 adjustable by a bell-crank 92. The rear end of the concave is supported on the outside of the body by eye-bolts 80, whereby the concave may be adjusted to and from the threshing cylinder, either at the rear, by adjustment of the eye-bolts, or at the front by the cams, the slot 70 permitting the grating 40 to accommodate itself accordingly.
Patent GB-1405511-A (GB)
Title: Poultry waterin cup
IPC: A01K39/02
Filed: 1973-05-22
Abstract: 1405511 Poultry watering cups DIAMOND INTERNATIONAL CORP 22 May 1973 [1 March 1973] 24297/73 Heading AIM [Also in Division F2]  A poultry watering cup suitable for use with a low pressure water supplycomprises an inlet conduit 40 leading to a valve assembly having a valve 22 normally seated on a valve seat 18 under relatively low water pressure to prevent flow of water into a cup 10, a valve stem 30 extending through a passage 16 into the cup 10 which is provided with a drain pipe 44 to prevent overflow. A plastic ball B of unit specific gravity is inserted into the cup 10 to assist tilting of the stem 30 for actuation of the valve 22 by baby chicks. A strainer 32 prevents dirt from backing into the supply line.