baber/WOPTO huggingface dataset:
Patent GB-421582-A (GB)
IPC: G03C7/14
Abstract: 421,582. Colour photography. LAGRAVE, J., 147, Avenue de Clichy, Paris, and HUDELEY, V., 50, Boulevard Victor Hugo, Clichy, Seine, both in France. June 20, 1933, No. 17553. Convention date, June 16. [A Specification was laid open to inspection under Sect. 91 of the Acts, Dec. 21, 1933.] [Class 98 (ii)] Component colour-record images produced in separate areas of a single normal picturespace of a plain film are reproduced as a cornposite record in a single picture-space of a lenticular film by means of an optical-projection system comprising a single objective used in conjunction with three smaller objectives as described in Specification 408,764, the system having at its exit pupil a diaphragm having rectangular apertures such as r, g, b, Fig. 1, arranged perpendicular to the lenticles of the film, each aperture being on the axis of one of the smaller objectives. The print may be developed directly or by reversal. Specifications 10611 /09, [Class 98 (ii)], and 388,062 also are referred to. The Specification as open to inspection under Sect. 91 describes also (1) an optical system for taking colour-record pictures on a lenticular film, which may have 22-30 lenticles per mm. comprising a wide-aperture objective (F/1À4 to F/2À5, and focal length about 64 mm.) and a colour-selecting filter of square or rectangular form divided into equal colour areas, the arrangement being such that contiguous elementary lenticular images are produced. The diagonal of the filter may be equal to the diameter of the exit pupil of the objective ; (2) A projection-printing system for reproducing, on to a lenticular film, component colour-record images produced in recurring sequence on a plain film, each image occupying one picture-space, the system employing discrete quadrangular diaphragm apertures r, v, b, Figs. 10-12 (Cancelled), which may be arranged on a rotary disc or on a sliding plate. This subject-matter does not appear in the Specification as accepted.
Patent GB-958235-A (GB)
Title: Electromagnetic switching device
Inventor: WEBB ROGER JOHN
IPC: H03K17/80
Filed: 1960-12-09
Abstract: 958,235. Inductors. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. Oct. 30, 1961 [Dec. 9, 1960], No. 42425/60. Heading H1T. [Also in Division H3] A switching device includes a closed loop magnetic core L 1 , L 2 , L 3 , L 4  with a winding W 1 , W 2  whose inductance is switched between relatively high and low values in dependence on the relative directions of magnetization of the magnets M and EM which are arranged as shown. The electromagnet EM has a high remanence, so that its direction of magnetization depends on the sense of the last signal in the D.C. control winding W 3 . The permanent magnet M has its flux adjusted by the air gaps g to be equal to that of the electromagnet. The geometry is preferably such that the flux from one of the magnets, if the other were absent, would divide in the ratio 3 : 1 between its two possible paths. If EM is magnetized so that P 3  is south and P 4  north, then limbs L 3  and L 4  are saturated. Windings W 1 , W 2  then have a low inductance. If EM is reversed then the fluxes are in limbs W 1 , W 2  and are of about half the previous value. If this is below the saturation flux the windings W 1 , W 2  will possess a relatively high inductance. The arrangement may be used in railway signalling systems where it is essential that, after a period of supply failure, the switch responds to the last control signal received.
Patent GB-1484041-A (GB)
Title: Method and apparatus for measuring the proportion or quantity of component in a radiation-transparent mixture
IPC: B65D88/28
Filed: 1974-10-02
Abstract: 1484041 Measuring the proportion of a component in a gas mixture URANIT URANISOTOPENTRENNUNGS GmbH 2 Oct 1974 [5 Oct 1973] 42709/74 Heading G1A In an apparatus for measuring the proportion of a gas component in a gas mixture using oscillating interference filters 9a, 9b, radiation from a halogen lamp is directed, as shown, by a curved reflector 1, a slit screen 3 and two lenses 4 through a test tube 5. The radiation is then split by a beam-splitter 6 into a measurement beam A and a reference beam B. Each beam passes via a slit screen 7 a beam compensator 8 an oscillating interference filter 9a or 9b to a beam chopper disc 10, also Fig. 1a (not shown). The chopper has two sets of apertures which are designed to alternately allow each beam to be received via lenses 11 and 12 by a detector 13. The interference filter 9a has a transmitting wavelength which corresponds to a wavelength slightly above the absorption wavelength of the gas component to be measured. The interference filter 9b has a transmitting wavelength that differs from the absorption wavelength of the component, Fig. 2 (not shown). The oscillating rotation removes the necessity of precise alignment since during each "swing" of the filter, the absorption maximum is scanned. The oscillation is controlled by limit switches 17. A reference synchronizing signal is provided by means of: a further source 19, a further set of apertures on the disc 10 and a further detector 14.
Patent GB-1197944-A (GB)
Title: Improvements in or relating to Flat-Bed Knitting Machines
Inventor: IRMSCHER HELMUT
IPC: D04B7/10
Filed: 1967-09-20
Abstract: 1,197,944. Knitting-machines. FAHRRADWERK ELITE-DIAMANT VEB. 20 Sept., 1967, No. 42760/67. Heading D1C. A flat-bed knitting machine includes a carriage comprising three separate, connectible parts 2a, b, c and driven by a Ward-Leonard set through a reversible variable stroke drive. Two sets of adjustable reversing switches are provided (operative when the central part only, or all parts of the carriage are reciprocating. The central part 2b carries the knitting cams 14, pattern mechanism 15 and widening pickers 16. Each of the outer parts carries a narrowing device 17 and a stitch transfer 18 device and is connectible to the central part by a magnet 19 when narrowing is required.
Patent GB-1176970-A (GB)
Title: Improvements in or relating to Liquid Treating Apparatus
Inventor: ALSTON THOMAS
IPC: D06B7/08
Filed: 1967-09-20
Abstract: 1,176,970. Treating textiles. MATHER & PLATT Ltd. 9 Sept., 1968 [20 Sept., 1967], No. 42825/67. Heading D1L, An apparatus for the liquid treatment of fabric webs comprises a tank 10 or 11 for holding the treatment liquid (cold concentrated aqueous caustic soda in tank 10, heated water in tank 11), one or more position-stationary rotatable rollers 14 or 114 extending transversely of the tank 10 or 11, and at least two buoyant rotatable drums 15 or 115 floatingly disposed within the tank below and in nipforming relationship with the rollers to define a sinuous web material path through the tank. The rollers 14, 114 are bearing mounted. The drums 15, 115 are hollow and have a spherical ended outwardly-extending spindle 38 at each end which rests freely in a U-shaped bracket 40 on the adjacent tank wall. The bracket is disposed so that even when the tank is empty the drum cannot contact the tank bottom and also the spindles cannot move upwardly out of the bracket due to the rollers 14, 114. The spindles serve to assist transverse location of the drums. Each drum is provided with a closable port 41 in an end wall to permit introduction of a gas to alter its buoyancy. The tanks 10, 11 are equipped for recycling of the liquids, perforated pipes 16, 116 being provided for the introduction of the treatment liquid. The most downstream roller 14A in tank 10 and both end rollers in tank 11 have a pendulum linkage tensioning device. A squeezing mangle 23, 123 is provided at the end of each tank.
Patent GB-867935-A (GB)
Title: Production of artificial protein fibres
IPC: D01F4/00
Filed: 1959-12-16
Abstract: Artificial protein fibres are made by spinning into a coagulating bath an aqueous composition comprising a major proportion of a protein material, preferably casein, and a minor proportion of a soluble salt of carboxymethyl cellulose, preferably the sodium salt. Desirably, the spinning solution contains casein and sodium carboxymethylcellulose in proportions by weight within the range 90 : 10 to 65 : 35, especially 85 : 15, the casein and sodium carboxymethylcellulose constituting about 18% by weight of the spinning solution, which may also contain sufficient sodium hydroxide to give a solution pH of 10-10,5, and a small proportion of diethyleneglycol monolaurate. Conventional casein coagulating baths are used, (e.g. sulphuric acidsodium sulphate).  Spinning may be effected at extrusion speeds of 40-100 m./min. with a draft of up to 300-400% effected in two stages, (e.g. by passage through two drawing baths each containing aluminium sulphate and sodium chloride, with a little sulphuric acid, the first at 40 DEG C. and the second at 65 DEG -70 DEG C.) The drawn filaments, cut if desired, may then be insolubilized in conventional casein insolubilizing baths, e.g. formaldehyde-sodium chloride-aluminium sulphate, desirably in two or more stages, and washed and dried.  Drying is preferably effected below 100 DEG C.  Filaments so made have a wet tenacity of the order of 0,65 gms./denier and are resistant to boiling water.
Patent GB-1234768-A (GB)
Title: Textile spinning spindle assembly
Inventor: KERR JOSEPH
IPC: F16D55/16
Filed: 1967-09-20
Abstract: 1,234,768. Spinning spindles. NATIONAL RESEARCH DEVELOPMENT CORP. 11 Sept., 1968 [20 Sept., 1967], No. 42861/67. Heading D1D. [Also in Division F2] A textile spindle assembly comprises a spindle 2, 3 disposed within a housing 4, means such as glass tubes 5, 6 which co-operate with the spindle within the housing and create a hydrodynamic gas bearing when the shaft is rotated, a thrust bearing 11, 13 for preventing downward movement of the spindle and a brake to brake the shaft without causing radial thrust on the shaft. The glass tubes 5, 6 are mounted in rubber O-rings 7. The thrust bearing comprises a ball bearing 11 in a conical recess 12 at the foot of the spindle bearing on a thrust pad 13 of glass impregnated nylon, the pad being eventrically mounted in a plug 14 which can be turned so that a fresh bearing surface is presented to the ball bearing. The plug 14 can be vertically adjusted to adjust the vertical position of the spindle. Spindle brake. The upper end of housing 4 has an inwardly directed flange 20 on the lower surface of which are brake pads 21. Flange 20 which lies between flanges 18, 19 fast on the spindle carries a camming ring 23, see also Fig. 2 not shown, on which rests a brake ring 26 having brake shoes 31 on its upper side. When camming ring 23 is turned by a lever (29), Fig. 2, not shown, balls 24 supported in curved recess 25 in flange 27 and engaging curved recesses 28 in brake ring 26, see Fig. 3, not shown, lift ring 26 into braking engagement with flange 18 thus braking the spindle. On further rotation brake ring 26 lifts the spindle by flange 18 thus brakin the spindle. On further rotation brake ring 26 lifts the spindle by flange 18 and thus brings flange 19 into braking engagement with the shoes 21.
Patent GB-1089933-A (GB)
Title: Process for the treatment of iron oxide ores containing nickel, chromium and cobalt
IPC: B03B9/00
Filed: 1964-10-21
Abstract: A process for the treatment of an iron oxide ore containing nickel, chromium and cobalt, comprises separating ore into a fine fraction containing nickel and iron oxide, but low in chromium and cobalt, and a coarse fraction containing chromium and cobalt, subjecting said coarse fraction to gravity concentration so as to form a chromium-containing concentrate and a cobalt-containing-concentrate and separating said chromium-containing-concentrate by a magnetic treatment into a chromite concentrate and a magnetite concentrate. The ore may be roasted and calcined and/or ground before separation. The initial separation may be by means of an hydraulic cyclone and the sand fraction may then be treated with a table concentrator. The chromium-containing concentrate may be crushed before the magnetic separation.  The nickel-containing and/or cobalt-containing concentrate may be mixed with a halide, e.g. calcium chloride, and a reducing agent, e.g. coke, coal or charcoal, and the resulting mixture subjected to roasting so as to cause most of the nickel and/or cobalt to be liberated in metallic form.  The roasted mixture may then be mixed with a salt of a metal less electropositive than nickel and/or cobalt, e.g. copper sulphate, to precipitate said metal on the surface of the nickel and/or cobalt particles and the particles then separated.
Patent GB-1515769-A (GB)
Title: Method of installing a heating element in a pressurizer
IPC: G21C1/09
Filed: 1976-10-21
Abstract: 1515769 Electric resistance heating WESTINGHOUSE ELECTRIC CORP 21 Oct 1976 [21 Oct 1975] 43700/76 Heading H5H A pressurizer for a pressurized water nuclear reactor comprises a vessel with a plurality of electric resistance immersion heaters 21 in the bottom of the vessel 7 each extending into the vessel through a nozzle 19 mounted on the wall of the vessel and being welded to a boss 35 itself welded to the respective nozzle outside the vessel. Each nozzle 19 is welded to a cladding plate 33 on the inside of the vessel.
Patent GB-1458688-A (GB)
Title: Coating powders their manufacture and usep
IPC: F02B39/00
Filed: 1974-10-10
Abstract: 1458688 Coating powders ROBERT BOSCH GmbH 10 Oct 1974 [11 Oct 1973] 43882/74 Heading C3B A coating powder comprises (A) an epoxy resin and hardener which have been homogenized in the liquid phase, at elevated temperature, cooled, and pulverized and (B) graphite. There may be, by weight, 20-40% (A) and 80-60% (B). (A) and (B) may be ground together, e.g. in a blast mill, e.g. to 0À2 mm grain size. Use.-Improving slide characteristics of mechanical parts, e.g. a high-speed vane-type pump for an I.C. engine exhaust.
Patent GB-1372928-A (GB)
Title: Booth for electrostatic spray coating of workpieces with powder particles
IPC: B05B15/12
Filed: 1972-09-22
Abstract: 1372928 Pneumatic conveyers S MASUDA 22 Sept 1972 [6 Oct 1971] 43901/72 Heading B8A [Also in Division B2] A pneumatic conveyer 70 comprises a plenum chamber 92 to which air is admitted via an inlet 90 and a porous insulating support on which powder is to be carried there being a series of exciter electrodes located in the porous support. The electrodes are arranged in groups which are connected to respective terminals of a three-phase transformer whereby a travelling wave electric field is produced to transport the powder towards a collector pipe 71.
Patent GB-926160-A (GB)
Title: A gas turbine with preheating and cooling of the turbine rotor
IPC: F01D5/08
Filed: 1959-12-29
Abstract: 926,160. Gas turbine engines. GENERAL ELECTRIC CO. Dec. 29, 1959 [Dec. 29, 1958], No. 44099/59. Class 110 (3). In a gas turbine having passage means in communication with the compressor discharge side and which establish a flow path around the inner portion of at least the first stage rotor disc and which form nozzle members 17, said nozzle members being rearwardly directed relative to the direction of rotation of the rotor. Coolant flows from a chamber 9c, through nozzles 9d, which are inwardly tapered and rearwardly directed relative to the direction of rotation of the rotor, thereby imparting rotational energy to the cylinder 9 to reduce the pressure and temperature of the coolant. The nozzle members 17 are machined in trapezoidal blocks, the coolant passing through a nozzle 17b via a cylindrical chamber 17a. The blocks also serve as heads of bolt members 17c, which hold the turbine discs 2a, 2b together. From the nozzles 17b part of the coolant flows along the rear face of the disc 2a, while the remainder of the coolant passes through a sealing ring member 15 to cool the front of the second turbine disc 2b. The fluid flow through the nozzles 17b also imparts rotational energy to the turbine rotor. On starting the flow of coolant will heat the turbine discs sufficiently to eliminate dangerous thermal stress gradients until normal running temperatures are reached.
Patent GB-943035-A (GB)
Title: Improvements in or relating to electric oscillator circuits
Inventor: CHAMBERLAIN JACK KEEBLE
IPC: H03B5/34
Filed: 1960-12-22
Abstract: 943,035. Valve oscillators ; frequency modulation; frequency shift radio signalling. GENERAL ELECTRIC .CO. Ltd. Dec. 18, 1961 [Dec. 22, 1960], No. 44149/60. Headings H3F, H3L and H4R. In a crystal oscillator comprising an amplifier and a positive feedback path which includes a piezo-electric crystal to determine the frequency of oscillation, a variable phase-shifting network is arranged in series with the crystal in the feedback path whereby the frequency of oscillation may be varied over a small range. The main oscillator valve 7 comprises a grounded-grid amplifier having a parallel tuned circuit and limiting diodes in its anode circuit and supplying the output terminal through cathode follower 17. Feedback from the output is taken through the crystal filter 3 and an adjustable phase-shifting network comprising two parallel-connected phase-shifting circuits 5 and valves 40, 44 for adjustably combining the outputs from the circuits 5 to the cathode of the oscillator valve 7. The phase-shift introduced by the phase-shifting network may be varied by application of negative and positive control voltages of equal magnitude to terminals 32, 35, thus varying the proportion in which the two outputs from the circuits 5 are combined. The invention is stated to have application to frequency-shift keying arrangements.
Patent GB-1206560-A (GB)
Title: Seal arrangements for rotary regenerative heat exchangers
IPC: F28D19/04
Filed: 1969-09-11
Abstract: 1,206,560. Thermal regenerators. GENERAL MOTORS CORP. 11 Sept., 1969 [23 Oct., 1968], No. 44860/69. Heading F4K. In a rotary regenerative heat exchanger having an annular matrix 11 surrounded by a stationary housing 10, a sealing assembly (28, Fig. 1) comprising a flexible member hinged to a carrier or frame 40 is provided for bridging the gap between each end of the matrix 11 and the surrounding housing 10. The flexible member comprises a sealing membrane 49 reinforced by a supporting membrane 50 and a plate 52. The membranes 49 and 50 and a hinge element 53 are welded together and to the frame 40. The free edge of the sealing membrane 49 is biased towards the housing face 48 by means of the pressure differential across the seal. The plate 52 is provided with slots 56 to reduce its torsional stiffness. The frame 40 carries a wear element 45 in contact with the matrix 11. A number of pins 41 projecting from the housing 10 and received in slots 42 serve to locate and hold the frame in position.
Patent GB-1198130-A (GB)
Title: Resin Compositions with Enhanced Light Stability
Inventor: CARPENTER DEREK ALAN
IPC: C08K5/3475
Filed: 1967-10-03
Abstract: 1,198,130. Light-stabilized resin compositions. MONSANTO CHEMICALS Ltd. 24 Sept., 1968 [3 Oct., 1967], No. 45021/67. Headings C3G and C3P. A composition contains a resin and as light stabilizer a 2-(2<SP>1</SP>-hydroxyphenyl) benzotriazole compound, e.g. 2-(2<SP>1</SP>-hydroxy-5-methylphenyl)- benzotriazole, the light-stability of the composition being synergistically enhanced by the presence of a substance that acts as an antistatic agent when incorporated in the resin. The resin may be polystyrene or a copolymer of styrene and acrylonitrile per se or grafted on to polybutadiene. The antistatic agent may be an amine or amide of formula or where R is a C 6-22  alkyl group, R<SP>1</SP> is H or methyl, m is 1-6 and n is 0 or 1, e.g. lauric acid diethanolamide; a quaternary ammonium compound of formula (R<SP>11</SP>NR<SP>111</SP> 2 ) z X, where R<SP>11</SP>is a C 12-18  alkyl, R<SP>111</SP> is methyl or ethyl, X is Cl-, SO 4  = or R<SP>111</SP>SO 4 - and z is the valency of X, e.g. cetyldimethylethylammonium ethylsulphate; or a phosphate ester of a condensate of an alcohol or phenol with an alkylene oxide. In the examples the compositions also contained 2,6- ditert.-butyl-4-methylphenol, zinc oxide, a purple dye, zinc stearate and rutile. The composition may be used to form a light fitting.
Patent GB-1021955-A (GB)
Title: A silent closing device for a vehicle door
IPC: E05F5/02
Filed: 1963-11-15
Abstract: 1,021,955. Door operating apparatus, latches. M. ROSENG and F. NIEDERHAUSER. Nov. 15, 1963 [Nov. 16, 1962], No. 45144/63. Headings E2A and E2M. A silent closing device for a vehicle door comprises a U-shaped cradle 1 fixed inside a door below the position of the handles, the cradle 1 being provided in its front portion with a hinge 2 for a fork-shaped lever 3, the front leg 4 of said lever being provided at its end with a castor 7 adapted to penetrate in the closed position of the door into a cavity 25, Fig. 5 (not shown), in the framing column 26 of the door inside which is fixed a guiding nose 27 for the castor. The end of the rear leg 5 of the forked lever 3 is connected to a U-shaped attachment member 9 by means of a hinge 8 independent of the cradle, the attachment member being spot welded to the front wall 10 of a movable cylinder 11 filled with oil and enclosing a coil spring 17 interposed between the front wall 10 and a piston 15. The piston is provided with communicating holes 20 and a nylon diaphragm 19 secured to the piston rod 14 and adapted to mask the openings of said holes issuing into the rear face of the piston, the piston rod 14 passing through a guiding plug 13 secured to the rear end of the cylinder 11, the base of said rod 14 pivoting on a hinge 23 in the rear end of the cradle. Means are provided for locking the vehicle door in a closed position. The device is so arranged that before the engagement of the castor on the guiding nose 27 the forked lever 3 is maintained in contact with a stop 12 on the cradle under the action of the spring 17, the hinge 8 being situated below the plane defined by the hinges 2, 23 on the cradle and when the castor is in contact with the guiding nose the lever 3 rocks and the hinge 8 passes to the other side of said plane while allowing the spring to loosen and cause the lever 3 to pivot so that the castor 7 penetrates completely into the cavity 25 bringing the door into the closed position. The diaphragm 19 and the piston 15 have a groove 21 at their peripheries for the flow of oil during the closing of the door. The diaphragm 19 uncovers the communicating holes 20 for the free flow of oil during door opening. The locking means for the door, Fig. 7 (not shown), comprises a bolt 32 spring loaded into a cavity 33 of the door framing column, the rear end of the bolt 32 having a hole for a cable 38 one end of which, after having been wound partly around a guiding roller 39, is fixed on a push button 40 adjoining the outer handle of the door, the other end of said cable being wound around and fixed to the spindle 42 of the inner handle 43 of the door. The outer door handle is provided with a lock having a lug adapted to penetrate into the push button 40.
Patent GB-1487503-A (GB)
Title: Lubricants for use in the processing of plastics material
IPC: C08L101/00
Filed: 1975-10-31
Abstract: 1487503 Tree bark waxes as lubricants HOECHST AG 31 Oct 1975 [2 Nov 1974] 45291/75 Heading C3P [Also in Division C5] As a lubricant for plastics material there may be used a wax which is obtained by extracting tree bark with an aliphatic hydrocarbon, or an oxidation, esterification, saponification or amidation derivative thereof. The wax or its derivative may be used in combination with another natural or hydrocarbon wax or a derivative thereof.