baber/WOPTO huggingface dataset:
Patent GB-793576-A (GB)
Title: Improvements in apparatus for determining unbalance in, and effecting unbalance corrections to, elongated workpieces
IPC: G01M1/22
Filed: 1955-10-31
Abstract: 793,576. Balancing rotors. GENERAL MOTORS CORPORATION. Oct. 31, 1955 [Nov. 17, 1954], No. 31058/55. Class 40 (1). In apparatus for determining the location and amount of unbalance in a rotor, electrical signals having an amplitude and phase respectively dependent on the amount and location of the unbalance are derived from vibration pick-ups and means are provided for effecting amplitude and phase comparisons of said signals with respect to reference signals. The apparatus shown comprises pick-ups 22, 24 located in transaxial correction planes of a crank-shaft 10 which is rotated by a constant-speed motor 16. The output of each pick-up is, as shown for pick-up 22, applied to the transformer 62 of a phase-sensitive rectifier to the other transformer 64 of which an alternator 42 supplies a signal, the phase of which is adjustable by a device 44. The transformers are connected across diagonal arms of a bridge comprising dry rectifiers 76, 78, 80 and 82, the output from which is obtained from centre-taps on the transformers and applied across a centre-zero millimeter 88. In use, the phase control device 44. is operated by a calibrated knob 58 until the bridge output is zero, in which case the two input signals are of equal phase and the angular location of the unbalance relative to a counterweight in the left-hand correction plane can be read off from the knob 58. The output of the pick-up 22 is also rectified at 94 and compared with the voltage across a potentiometer 106, the resulting error signal being fed to a servomotor 104 to rotate the potentiometer wiper for balance and also position the drill stop setting element 100 of a balance correction drilling apparatus (not shown). The amount of unbalance can be read off from a scale 116. The operator can now manually adjust hand wheel 20 to position the counterweight on the crankshaft over the drill bit and remove from the counterweight an amount of metal corresponding to the setting of the drill stop element 100. In another form (Fig. 2, not shown) the rectifier 94 is identical with phase-sensitive rectifier 40 and is supplied with signals from the vibration pick-up and from the phase control device which is automatically adjusted by a servomotor fed by the output from phase-sensitive rectifier 40. In this form also, the hand wheel 20 is automatically operated by the servomotor. The phase control device 44 may be eliminated and a servomotor, connected to receive the output signal from rectifier 40, may be used to re-position the stator of alternator 42 relative to the rates thereof (Fig. 3, not shown).
Patent GB-901883-A (GB)
Title: Improvements in or relating to transmission systems
IPC: H04B1/64
Filed: 1959-09-11
Abstract: 901,883. Companders. SIEMENS & HALSKE A.G. Sept. 11, 1959 [Sept. 12, 1958], No. 31071/59. Drawings to Specification. Class 40 (4). Volume compression and expansion is used at each end of a transmission channel suffering from delay distortion that is more pronounced at high-frequencies than at low frequencies and it is arranged that the side-bands produced by compression of the low-frequency speech signals are made to lie in a region of the channel producing less delay distortion than the region in which the side-bands of the high-frequency speech signals are made to lie. Delay distortion is less acceptable at low frequencies than at high frequencies. Should the system employ pilot control of the compander, the pilot signal is transmitted in the low frequency, low distortion, end of the channel; but should the pilot signal be used for output voltage regulation this is not done.
Patent GB-258755-A (GB)
Title: Improvements in and relating to periscopes
IPC: G02B23/08
Filed: 1925-12-09
Abstract: 258,755. Parodi, R. Dec. 9, 1925. Periscopes.- Periscopes of the type comprising optical elements adapted to project a complete picture of all the objects within range on a cylindrical screen, are fitted with two toric lenses O, P, of annular construction, the lenses being equal and symmetrically arranged at the upper and lower ends of the periscope tube T. Between the lenses O, P a system of lenses I .. IV is arranged, whereby the rays from the upper lens O are received by the lens P in such a manner that a real image is projected on the screen S as shown. If desired, a portion of the rays may be deflected by a prism d through an aperture e in the tube T and thence by way of prisms f, g to an eyepiece h for examination of a part of the horizon. Similarly, part of the rays emerging from the lens P may be diverted by prisms to an eyepiece for direct viewing. For viewing immediately overhead, lenses M, N are fitted in the central portion of the lenses O, P and utilized in conjunction with the intermediate lenses I - - IV and the prism p for the production of an image E2, F2 for examination by an eyepiece q.
Patent GB-833092-A (GB)
Title: Manufacture of polythene films
Inventor: CLEGG PETER LIONEL
IPC: B29C48/03
Filed: 1957-10-04
Abstract: Polythene of the type which, on extrusion through a melt-indexer according to A.S.T.M. D1238-57T, but under greatly increased loads, gives a monofil of substantially uniform diameter with a matt surface, is extruded through a slit or tube-forming die, and at least one side of the film or tubing at the point of extrusion is held at a temperature below that required to <PICT:0833092/IV (a)/1> produce clear film.  In this way a patterned film, as illustrated, is obtained.  The type of polythene required occurs particularly but not exclusively, among "high density" polythenes. Unsuitable polythenes, when tested as above, give a bumpy, twisted monofil of varying diameter.  One side of the film or tubing may be held at a temperature between 20 DEG  and 80 DEG  C. below the minimum temperature at which clear film is obtained.  With tubular film the inner surface is preferably maintained at the lower temperature, so as to obtain a patterned inner surface.  Film with both surfaces patterned may be obtained if both the lips of the extrusion orifice are held at suitably low temperatures.  The film or tubing may be stretched, at least in the extrusion direction, while still in a heatsoftened state, preferably to a ratio of 4 : 1 to 10 : 1. Transverse stretching, if employed, is preferably to a lower draw ratio than in the extrusion direction.  The patterned surface obtained is also free from "blocking" (i.e. sticking to an adjacent smooth surface), so that tubular film with a patterned inner surface made in this way is readily opened.
Patent GB-1424743-A (GB)
Title: Self-bonding insulated wires
IPC: H01B3/42
Filed: 1973-06-29
Abstract: 1424743 Coated copper conductors HITACHI Ltd HITACHI CHEMICAL CO Ltd and HITACHI CABLE Ltd 29 June 1973 31157/73 Heading B2E [Also in Divisions C3 and H1] Copper conductors for use in making cords are first coated with a polyimide lacquer and then with a lacquer prepared by dissolving in a solvent a polyether having a molecular weight of at least 5000 and having repeating units: R is H or C 1-4  alkyl group; R<SP>1</SP> is a divalent aliphatic or aromatic radical, a blocked polyisocyanate so as to provide 0.2-0.8 equivalent of isocyanate group per OH equivalent of the polyether, and from 5-35 parts by wt. of a copolyamide per 100 parts by wt. of polyether plus polyisocyanate. The polyether may be a resin commercially available as a "phenoxy resin", i.e. of the formula I in which R is H. It may also comprise a mixture of such a phenoxy resin and a polyether of formula II in which R is CH 3  and R' is a phenylene radical. A suitable blocked polyisocyanate is bis (m-tolyloxycarbamyl)-4, 4'-diphenylmethane. The copolyamide may comprise a mixture of units derived from hexamethylene adipamide and caprolactam. The conductor may be baked after coating with the polyimide and prior to coating with the lacquer of the invention. The lacquer is sufficiently flexible to form into coils having small diameters.
Patent GB-1530069-A (GB)
Title: Animal confinement environment control
IPC: B01D53/34
Filed: 1977-07-26
Abstract: 1530069 Removing noxious gases from air FMC CORP 26 July 1977 31212/77 Heading B1R [Also in Divisions Cl and F4] Buildup of odorous and noxious gases are prevented in an enclosed animal confinement habitat, and the humidity of the habitat is controlled, by removing a portion of the foul air from the habitat, contacting the air with an aqueous solution containing 0.01-1.0 wt.% H 2 O 2  and 10-85 wt.% H 3 PO 4  or H 2 SO 4  having essentially the same temperature of the air so that the odorous and noxious substances are absorbed and oxidised; adjusting the acid concentration during the contacting step to maintain the humidity of the contacted air to between 40% and 95% relative humidity, and returning the air to the confinement habitat. Noxious gases removed may include CO, NH 3 , H 2 S, CH 4  and organic compounds such as mercaptans and skatole. Oxidation may be assisted by a catalyst comprising Fe, Co, Ni, Cu, Mn, Mo, V, M, Pa or Ag salts. Humidity is controlled by ensuring that the water vapour pressure of the air and aqueous solution approach identical values on contact. Relationships between temperature, vapour pressure and acid concentration are given.
Patent GB-1089831-A (GB)
Title: Improvements in methods and apparatus for determining the amount of hydrogen dissolved in a fluid
IPC: G01N35/04
Filed: 1965-07-22
Abstract: 1,089,831. Electro-chemical analysis. COMMISSARIAT A L'ENERGIE ATOMIQUE. July 22, 1965 [Aug. 5, 1964], No. 31305/65. Heading G1N. To determine the dissolved hydrogen in a fluid (e.g. cooling water of a nuclear reactor) it is reacted with excess oxygen, and the amount of oxygen before and after the reaction is measured. As shown the fluid mixed with oxygen is passed through a reactor column 1 containing a catalyst e.g. platinum or palladium on an alumina support. Columns 4 and 6 connected to the inlet and outlet of the reactor column 1, contain a reagent such as thallium which is converted to thallous hydroxide and varies the conductivity of the fluid according to the amount of oxygen present. The outlets of these columns pass through conductivity cells 8, 9 connected in a differential circuit to indicate the amount of oxygen used. Flowmeters and regulators 12.. 16 are provided in the outlet pipes from all columns.
Patent GB-1471174-A (GB)
Title: Azo dyes containing sulphamoyloxy groups
IPC: C09B29/08
Filed: 1974-07-15
Abstract: 1471174 Azo dyestufFs ALTHOUSE TERTRE 15 July 1974 31320/74 Heading C4P The invention comprises water-soluble azo dyes of the general formula free from water solubilizing acid groups and wherein D 1  is a diazo component residue of the benzene, naphthalene or heterocyclic series, D 2  is a residue of a couplable amine of the benzene or naphthalene series, n is 0 or 1, X 1  and X 2  are H, halogen, or an optionally substituted C 1 -C 2  alkyl or alkoxy group, and when X 1  and X 2  are different one of X 1  and X 2  may be an optionally substituted acetylamino group meta to the amino N atom, R 1  is H or C 1 -C 5  alkyl optionally substituted by non-ionic substituents, R 2  is alkylene or hydroxyalkylene (straight or branched chain) optionally substituted by non- ionic substituents and R 3  and R 4  are C 1 -C 2 - alkyl. D 1  may be thiazole, benzthiazole, triazole or pyridine. The dyes are prepared by coupling in slightly acid medium a diazonium compound of an amine D 1 -NH 2  or D 1 -N = N-D 2 -NH 2  with a coupling component of the general formula wherein X 1 -X 2  and R 1 -R 4  are as above and in the latter case the terminal OH group may be esterified with an alkylsulphonic acid halide. When D 1  is a heterocycle containing nitrogen the nitrogen atom may be quaternized. The dyes dye or print natural and synthetic fibres, e.g. polyamides optionally in presence of an organic solvent and for the bulk dyeing of p.a.c., polyesters and acid modified polyamides.
Patent GB-1355818-A (GB)
Title: Camera flash lamp actuating structure
IPC: G03B15/04
Filed: 1971-07-05
Abstract: 1355818 Photographic cameras IMPERIAL CAMERA CORP 5 July 1971 [25 Nov 1970] 31410/71 Heading G2A In a photographic camera having a flash-lamp socket for a percussive flash unit, e.g. a flashcube, and a pusher rod assembly (46) Fig. 8 (not shown) which triggers the flash operation, movement of the rod assembly (46) pivots a shutter plate 132 to uncover lens opening 146, the plate 132 returning to its initial position Fig. 6 independently of the return movement of the rod assembly. Sequence of Operations: Depression of the camera shutter button causes a plate 90 to pivot anti-clockwise (as seen) about an axis 92, thereby tensioning a spring 112, the end 110 of which is held in a bifurcated end 108 of a spring element 106 secured to the plate 90. As the plate 90 rotates, an element 126 thereof engages a surface 128 of a retaining element 122 which is thus pivoted out of engagement with the tab 118 of the rod assembly (46). The rod assembly is driven upward by the spring 112 acting to rotate a rocker (70) which engages the lower section 56 of the assembly (46). As the section 56 rises, a tab 144 thereof engages a foot 142 of the plate 132 which is thus rotated rapidly. The upper portion 48 of the assembly (46) also rises so that an end 50 thereof enters the flash unit to trigger the flash operation Fig. 7. As the plate 132 rotates, a spring 136 is tensioned so as to return the plate 132 to its Fig. 6 position as soon as the tab 144 clears the foot 142. The plate 90 is returned to its initial position by the film winding mechanism. The assembly (46) is returned by a spring 166, tensioned as the assembly rises.
Patent GB-689859-A (GB)
Title: Improvements in or relating to bicycles
IPC: B62H7/00
Filed: 1950-12-28
Abstract: 689,859. Cycle supports. SEBEL, H. Dec. 28, 1950, No. 31520/50. Class 136 (i) A pair of struts 11 support a bicycle in an upstanding position and are each rigidly secured to the bicycle frame by a clamp 7 adjacent the ends of the rear axle 3, the struts extending outwardly and downwardly and being provided with ground engaging wheels 13. The axle is mounted in slots 4 in side plates 2 on the cycle frame and passes through holes in the clamps 7. The clamps and side plates are gripped between nuts 5 and shoulders 6 on the axle 3. Lugs 8 on the clamps engage in the slots 4. U-shaped portions 9 of the clamps adjustably embrace the struts 11 so that the bicycle is supported in a vertical position with both wheels 13 engaging the ground or the wheels may be raised so that the bicycle is supported in an inclided position by one wheel only. Alternatively the struts 11 may be welded to the clamps 7. Specification 689,864, is referred to.
Patent GB-186571-A (GB)
Title: A process for conserving meal or flour and improving its baking qualities and colour
IPC: A21D2/04
Filed: 1921-11-24
Abstract: 186,571. Naamlooze Vennootschap Industrieele Maatschappij voorheen Noury & van der Lande. Sept. 26, 1921, [Convention date]. Addition to 102,967, [Class 58, Grain &c.]. Cereal preparations.-In an improvement or modification of the process described in the parent Specification flour, meal, or other milling product or dough is treated with organic or inorganic peroxides during, before or after finishing the grinding process, and the mixture is allowed to rest so that enzymes contained in the flour &c. mav decompose the peroxide. Enzymes obtained from germ wheat, maize, &c., and moisture or certain chemical substances such as calcium chloride, calcium sulphate, acids, acid salts, alcohol which increase the action of the enzymes may be added. Light or actinic rays or heat may be applied simultaneously. The warm moist air of the mill may be utilized to complete the bleaching-process by the time the four leaves the mill.
Patent GB-1430596-A (GB)
Title: Multi-bladed fans
IPC: F04D29/32
Filed: 1972-07-06
Abstract: 1430596 Gas turbine ducted fan engines; mounting fan blades ROLLS-ROYCE (1971) Ltd 20 June 1973 [6 July 1972] 31570/72 Headings F1C F1J and F1T A multi-bladed fan comprises a rotor having a plurality of fan blades, a plurality of circular root members, and means for mounting at least two of the fan blades on each root member, the mounting means including pivot means whereby the fan blades are capable of pivoting towards and away from each other. The invention is described with reference to the fan assembly of a gas turbine ducted fan engine, the fan rotor comprising a pair of discs 20, 21 which are shaped at their peripheries so as to define a series of circular openings in each of which is mounted a circular root member 11, each root member being provided with two sets of spaced lugs, each set interdigitating with spaced lugs 14 formed on a fan blade 10, a pivot pin 13 passing through the lugs whereby the fan blade is pivotally mounted on the root member. The root member is mounted on the rotor for angular movement about the axis 17 whereby the pitch of the fan blades may be varied so as to provide reverse thrust. A radially inner bearing race 26 is in screwed engagement at 27 with the root member 11 and a radially outer bearing race 25 is in screwed engagement at 29 with the rotor 20, 21, bearings 18 being disposed between the races. A shaft 30 is in splined engagement at 31 with the root member 11 whereby the angular position may be adjusted. The blades have extensions 36 which serve to limit pivotal movement of the blades about the pivot axes 13.
Patent GB-743624-A (GB)
Title: Improvements in or relating to the cooling of compressed air, especially in mining
IPC: E21F3/00
Filed: 1953-11-16
Abstract: 743,624. Cooling air. GES. FUR LINDE'S EISMASCHINEN AKT.-GES. Nov. 16, 1953 [Nov. 17, 1952], No. 31751/53. Classes 64(1) and 64(3). Compressed air, e.g. for use in mines, is cooled by heat exchange with water which has been previously cooled by evaporation in a mechanical-draught cooling tower. After cooling the air, the water may be returned to the cooling tower. Alternatively, river water or water which has already been partly cooled is supplied to the cooling tower. Cold well or tap water may be added to the water cooled in the cooling tower.
Patent GB-1467244-A (GB)
Title: Moulding of cold-setting materials
IPC: B29C33/00
Filed: 1973-07-04
Abstract: 1467244 Moulding apparatus CONSTABLE HART & CO Ltd 4 July 1974 [4 July 1973] 31925/73 Heading B5A Apparatus for moulding viscous cold-setting materials such as bituminous mastic asphalt blocks includes a mould in which cavities 5 are arranged in a single row, the mould comprising opposed sections 1, 2 pivoted together at 3 and a bottom wall 6 pivoted to one section. The sections are urged together by springs 4 at the mould ends, and in this position the free edge of the bottom wall is engaged by a lip 7, Fig. 4. In a moulding plant a succession of such moulds are circulated on a rail system from a filling station to a rotary rack where they are cooled, e.g. by air blasts and water spray, then to a station where the moulds are opened and the moulded blocks discharged and, finally, back to the filling station. For this purpose each mould has a truss 8 and bogies 9, and at the discharge station it is received on a rail section 14 supported by the piston-rods of rams 12 supported by a pair of end structures 10. Each structure supports a pair of cranked arms 17, pivoted at 18, and carrying rollers 20 engaging the mould; the arms are urged together by springs 21. To discharge the mould, the ram rods are lowered, forcing the truss downwardly and causing the arms to swing outwardly whereby the mould sections are forced apart; the bottom wall swings down and engages stops 24 on an arm 22 pivoted at 23. The moulded blocks slide down to a conveyer 27. To close the mould a ram 25 is actuated to raise the arm 22 and hence the mould bottom wall which is held by the lip 7 when the ram rods are retracted.
Patent GB-656075-A (GB)
Title: Improvements in or relating to tools for use in securing model railway rails to chairs
IPC: A63H19/30
Filed: 1946-04-10
Abstract: 656,075. Riveting-sets. HAMBLING INDUSTRIES, Ltd., (formerly HAMBLING MODELS, Ltd.), HAMBLING, A. W., BEALE, D. C., and OWEN, C. R. April 10, 1946, No. 32036/48. Divided out of 656,053. [Class 83 (iv)] A tool for riveting a model chair such as is described in Specification 656,053 to a sleeper comprises a shank a with a head b and boss c. A transverse groove d in the boss locates the tool on the sleeper and recesses f, h receive the chair.
Patent GB-638479-A (GB)
Title: Improvements in or connected with electric plug-and-socket couplings
IPC: H01R13/68
Filed: 1947-12-18
Abstract: 638,479. Two-part couplings. SCHOLES & CO., Ltd., G. H., PEARCE, F. J., and PEARCE, G. S. Dec. 18, 1947, No. 32112/48. Divided out of 638,450. [Class 38 (i)] In a fused plug in which the fuse 14 is inserted laterally through an aperture 13 in the plug base and held in spring clip contacts 15, 16 connected respectively to one plug pin 10 and a terminal 17, the fuse is secured by a staple 20 to an insulating carrier 19 which closes the aperture 13 when the fuse is in position in the plug. For withdrawing the fuse, the carrier has a notch 21 formed in it in which a tool may be inserted. According to the Provisional Specification the carrier may be omitted, the fuse being removed, when blown, by meansof a tool passed through a hole in the cover of the plug.
Patent GB-172308-A (GB)
Title: Improvements in and relating to internal combustion engines
IPC: F02B75/02
Filed: 1921-11-30
Abstract: 172,308. Skywing Aircraft Corporation, (Assignees of Harper, W.). Dec. 1, 1920, [Convention date]. Regulating; valves; valve-gear.-The invention relates to engines having radial cylinders secured to a central rotating shaft in the interior of which is located a distributing-valve, the engine pistons being connected to eccentrics on the central shaft by return rods. According to the invention, which is shown applied to a valve of the kind described in Specification 180,681, means are provided for adjusting the timing of the valve to vary the speed and power. The engine shown in Fig. 1 has radial cylinders which rotate with a shaft 5 about a central rotating valve 21, the pistons being connected by outside rods 11 to rings 13 mounted upon eccentric sheaves 18. Each cylinder has an elongated port 7 opening into a similar port 8 in the sleeve 5, the ports 8 registering at intervals with separate admission, exhaust, and ignition ports in the valve as described in the Specification referred to above. Secured to one end of the valve is a wheel 25 which gears with a pinion 26 mounted on a spindle 27 carrying a second pinion geared to the wheel 30 on the shaft 5. The spindle 27 is carried by a swinging arm 28 the position of which may be adjusted to vary the angular position of the valve to alter the timing.