baber/WOPTO huggingface dataset:
Patent GB-965143-A (GB)
Title: Device for guiding the free end of a roll of tape in a cassette and attaching the said end to the take-up device in sound-recording and -reproducing machines
IPC: G03B1/56
Filed: 1962-08-13
Abstract: 965,143. Threading sound-record tapes. M. GRUNDIG. Aug. 13, 1962 [Aug. 19, 1961], No. 30934/62. Heading G5R. A single-spool cassette 6 is slid under guide rails 7 on the deck of a recorder and in the last part of its movement changes the positions of the members, previously as in Fig. 1, to Fig. 2, as follows:- (a) The arm 24, engaged by the front of the cassette, moves the arm 18 about its pivot 17 by the action of link 25. (b) A hook 12, guided by the action of cam means 21, engages the mouse on the tape-leader 10; (c) A tongue 19, on the arm 18, is moved into intercepting relationship with the circular path of a pin 29. A START SWITCH 23, (or, alternatively, contact means associated with sliding of the cassette into position) starts the drive motor 2 and energizes the solenoid 27. This engages a drive for the pin 29 clockwise through reduction drives 3 # 4; centre of 4 # 28; and the arm 18 is rotated some 90 degrees before the pin 29 slips out of engagement with the tongue 19 (Fig. 3, not shown). At this time, a notch 30 is tuned and placed to lift the mouse off the hook 12, and the mouse,on reaching the inner end of the notch 30, operates contact means 32 to release the solenoid 27,drive means to the hub 34 then taking over for recording and playback. Additional drive means (Fig. 4, not shown) are engageable to rewind the tape.
Patent GB-174747-A (GB)
Title: Improvements in or relating to the projection of coloured light
IPC: G03B33/00
Filed: 1920-11-03
Abstract: 174,747. Klein, A. B. Nov. 3,1920 Lighting, systems of; projectors; lantern shutters.-A method of projecting coloured light especially for stage lighting consists in dispersing the light from an artificial source into a spectrum and selecting one or more portions of the spectrum for projection by one or more lenses. Light from a source 1, Fig. 1, passes through a condenser 2, a slit 3, a collimator 4 and a constant deviation or dispersion prism 5. The spectrum formed is received by a collimator 6 having an adjustable slit 7. The light passing through the slit 7 is projected by a condensing lens 8 on the object 9 to be illuminated. The prism 5 is preferably mounted on a rotary table 10 with a micrometer adjustment 12, by adjusting which and the movable edge of the slit 7 any desired portion of the spectrum may be employed. Instead of the prism being rotatable, both edges of the slit may be adjustable. In a modification, Fig. 2, the slit 7 is replaced by a number of parallel shutters a-k which are hinged to a rod L and arranged so as to fall in alternate directions, bars m, n, o carried by end nieces p, q acting as stops. The lower end of each shutter is provided with a short crank pivotally connected to a vertical arm which is pivoted at its lower and to one end of a spring M carrying the armatures N of one of a series of electromagnets a<1>-k<1>. The coils of each electromagnet are connected to a common brass strip s and to one of the terminals a<2>-k<2>. The controlling-apparatus for the shutters comprises a short piano keyboard with keys P, Q, which are pivoted at R and supported by springs S, and have at their undersides a brass or copper strip T connected by a wire U to terminals connected by wires to the corresponding terminals a<2>-k<2>. Beneath the keys P, Q is a continuous bar V connected by a wire W to a battery X. To enable a particular colour to be projected for a long period without continually holding down a key P or Q, each key has a corresponding switch A having a stem carrying a blade B adapted to bridge contacts C, D, which are connected in parallel with the strip T and bar V. The coloured light may be diluted with white light from an ordinary projecting lantern, and the shutters may be operated by mechanical means without the use of electrical apparatus. A number of sets of projecting-apparatus may be operated from a single keyboard. Specification 166,028, [Class 98 (ii), Photographic processes &c.], is referred to.
Patent GB-1279020-A (GB)
Title: Method of generating enhanced biocidal activity in the electrolysis of chloride containing solutions
Inventor: GWYNN ROSS MERTON
IPC: C02F1/467
Filed: 1969-06-19
Abstract: 1279020 Electrolytic production of biocidal solutions R M GWYNN and T THEMY 19 June 1969 [5 Aug 1968] 31123/69 Heading C7B An aqueous medium containing 10-21, 000 p.p.m. of chlorine ion and substantially free of other halide ions is electrolyzedbetween spaced electrodes, at least the anode having a platinum surface, using a minimum potential of 10 volts and a maximum current density of 5 amps/sq. in., with a watt density of up to 100 watts/sq. inch of platinum electrode surface, to generate a biocidally active aqueous medium containing chlorine together with free radicals and other oxidizing species including at least one part by weight of ozone per 50 parts by weight of available chlorine in the effluent. The voltage is preferably in the range 10-100 volts, the value used being inverse to the proportion of chloride ion in the solution to be electrolyzed. Electrolysis may be carried out continuously or as a batch process, and a portion only of the main stream may be electrolyzed. Prior to electrolysis the chloride ion content of the side stream may be suplimented, e.g. by addition of a watersoluble chloride. The method may be used in treatment of drinking water, swimming pool water or sewage; in polution control in rivers and harbours; in algae control in lakes or air conditioners; and in producing disinfecting solutions.
Patent GB-924063-A (GB)
Title: Improvements in or relating to articles of furniture such as office desks
IPC: A47B17/03
Filed: 1961-08-29
Abstract: 924,063. Desks &c. KINNARPS KONTORSMOBLER. A.B. Aug. 29, 1961 [July 27, 1961], No. 31131/61. Classes 52 (2) and 52 (3). A desk has a metal framework with struts 1, 2 connected to comer members 3 by weld seams 4, legs 5 with bolts 6 welded thereto and engageable with bores 3<SP>1</SP> in member 3 and a drawer arrangement 9 and tabletop 10 are attached by means of fittings 11, 12 carrying pins 13, 14 which engage in bores in struts 1. Slidably secured to the desk is a supplementary table 20 with cabinet 31 and legs 32.
Patent GB-688995-A (GB)
Title: Improvements relating to electrical measuring instruments
Inventor: ROLFE GEORGE BERKELEY
IPC: G01R27/18
Filed: 1950-12-22
Abstract: 688,995. Resistance measurement. EVERSHED & VIGNOLES, Ltd. Dec. 20, 1951 [Dec. 22, 1950], No. 31255/50. Class 37. To measure earth resistance between electrodes P1, P2, A.C. is supplied over the primary 3 of transformer 4 to electrodes C1, C2, and its secondary feeds a variable resistance 7, the A.C. across which is opposed to that developed between electrodes PI, P2; resistance 7 is adjusted until the meter 6 reads zero, the relationship between X, the unknown resistance, and 7 then depending on the ratio of the transformer. Preferably, the A.C. is derived from a hand generator 1, and the meter fed over a mechanical rectifier 11 driven in step with the generator. The primary winding 3 is preferably tapped to provide several ratios. The circuit has the advantage that the resistance C, D of the electrodes P1, P2 is eliminated from the result.
Patent GB-1490215-A (GB)
Title: Method and apparatus for testing lenses
IPC: G01M11/02
Filed: 1974-07-15
Abstract: 1490215 Measuring the power of a lens INSTITUT NATIONAL DU VERRE 10 July 1975 [15 July 1974] 31273/74 Heading G1A [Also in Division G2] Apparatus for this comprises a light source 1 and lens holder 8 and means for relatively displacing the axis of beam 6 and holder 8 at a known speed, detectors 14, 15 located to detect, at two positions spaced from holder 8, rays refracted by lens 7 and means to measure the time interval between the detection of rays. Lamp 1 in box 2 and slit 3 in plate 4 in the focal plane of lens 5 give parallel beam 6. Transport 9 supported by rollers 11 is driven at constant speed V by motor 10. Photo-cells 14, 15 are at X metres from the principal plane of lens 7 at an adjustable spacing of d metres. Preferably the photo-cells are in the image plane of the light source. On reception of rays in directions 16, 17, they respectively initiate and interrupt pulse counter 18 which emits a signal proportional to t seconds, the time between these receptions, so that calculator 19 determines the power P dioptics displayed by unit 20. Between lens 7 and the photo-cells there may be a further lens of known power which is converging if lens 7 is diverging, and diverging if it is strongly converging. The power of lens 7 is then calculated from the power of the combination. The pulses from the detectors 21, 22, Fig. 2, made square by circuits 23, 24, initiate and interrupt pulse generator 25 with integrator 26 giving a signal Xt to calculate 27, receiving a signal dependent on d and V from memory 28, so that a signal P = d/VXt is passed to de-coder 29 and display or sorting circuit 30. The power may be compared with a standard using memory 28 and the difference signal may trigger circuit 30. The embodiment of Fig. 3 (not shown) employs an oscillating mirror (33) instead of moving the lens and the single photo-resistor operates a timer for as long as it receives the refracted rays. In another embodiment the light source is on a trolley moved by a motor. In the embodiment of Fig. 4 (not shown) a diverging lens (46) being measured is moved in the focal plane of a lens (47), which is converging, between it and detectors (49, 51) and the distance X is then the focal length of lens (47). For measuring a converging lens (46) is diverging. The maximum cross-section of the beam is ¢ the maximum dimension of the lens both in directions parallel to and perpendicular to the displacement. The detector positions should be such that the rays reaching them emerge from zones of the lens, which, measured parallel to the displacement, are less than 10% of the lens dimension in that direction from the optical axis of the lens. The lamp may be quartz iodine or a helium-neon laser.
Patent GB-465419-A (GB)
Title: Improvements relating to covers for ships' hatches and the like
IPC: B63B19/16
Filed: 1935-11-12
Abstract: 465,419. Hatch covers. WALKER, A. Nov. 12, 1935, No. 31274. [Class 113 (i)] Metal shoes or bands a which protect the ends of wooden hatch sections against wear are provided with a handle c positioned over a cavity cut in the end of the section. The handle is formed by removing semicircular pieces of metal from the end shoe. Where the edge of the shoe constitutes the handle it is only necessary to form a single aperture in the shoe. In a modification, key-hole slots are cut in the shoe for the reception of a key which after insertion is turned to take beneath the adjacent metal portion of the shoe. Specification 440,524 is referred to.
Patent GB-1391946-A (GB)
Title: Apparatus for continuously winding filamentary material
IPC: B65H67/056
Filed: 1972-07-04
Abstract: 1391946 Transfer of yarn in continuous winding BOBTEX CORP Ltd 4 July 1972 [8 July 1971] 31317/72 Heading D1J [Also in Division F2] In a continuous winding machine bobbins are carried on two mandrels 13a, 13b. A traversing guide 22 driven by a cam cylinder 36 is carried by a carriage 38 which can be positioned selectively in front of either mandrel by a piston cylinder device 44, 46. The yarn packages 14 rest against rollers 16 which may or may not provide the drive. When the package reaches a predetermined size element 34 engages switch 30 to activate synchronizing mechanism 28 adjacent the respective package. When activated mechanism 28 raises a lever 29 to be struck by a projection 26 on the yarn guide and initiate transfer of carriage 38 to the other mandrel while the yarn is being traversed in the same direction as the transfer direction. The mandrels 13 are expandable as shown in Fig. 7. An end cap 21 fits over a conical member 82 onto which it is biassed by springs 89 and hence is expanded to internally grip a package former 15. The grip is released by means of an axial rod 77 moved by a spiral cam 71 equipped with an operating lever 19 (not shown in Fig. 7). Snagger pins 23 also retractably extend from the cap 21 to engage the yarn during transfer and operate in sympathy with the gripping operation. A knife is mounted between the mandrels to sever yarn therebetween and is equipped with yarn guide plates as illustrated in Fig. 6 (not shown). For Figures see next page
Patent GB-899099-A (GB)
Title: Apparatus for transporting and delivering water stored under pressure
IPC: B67D1/08
Filed: 1959-09-15
Abstract: 899,099. Hand trucks. LEVY, A. D. Dec. 15, 1960 [Sept. 15, 1959], No. 31416/59. Class 108(1). A container for transporting water comrises a closed tank 1 which is filled through a hose 9 having a non-return valve 10 at the end. The threaded end 11 of the valve is connected to another hose fed from the supply mains so that the air trapped in the container is compressed during filling. Discharge of the water under pressure is effected by another hose having at its end a fitting which opens the non-return valve 10 when coupled up. A manually operated air valve 24 may be fitted.
Patent GB-212958-A (GB)
Title: Improvements in or relating to ordnance breech mechanism
IPC: F41A3/04
Filed: 1922-11-17
Abstract: 212,958. Dawson, Sir A. T., Buckham, Sir G. T., and Purvis, W. R. Nov. 17, 1922. Ordnance breech mechanism.-To prevent the swinging breech-screw carrier " taking charge " in a seaway when reversible operating gear is employed, a self-locking device of known construction is provided to retain the carrier in any position in which it is placed until the device is released by the movement of the operating band-lever or handwheel in either direction. In the form shown, the carrier hinge-pin c which is keyed to or integral with the carrier, has lugs c<1>, c<2> engaging with lost motion between projections d<1>, d<2> upstanding from the hand-lever D. Spring-pressed balls or rollers c<4> are mounted between the lugs and engage four inclined faces c<3> to lock the carrier to the gun A, the balls or rollers being released by the projections when the hand-lever is turned. In a modification in which the carrier is turned by a screw device operated by a handwheel through bevel gearing, the self-locking device is fitted between the hand-wheel and an adjacent bevel wheel.
Patent GB-1508069-A (GB)
Title: Walking aid
IPC: E04F11/18
Filed: 1976-07-28
Abstract: 1508069 Walking aid G R KEEYS M NICHOLSON V REDFERN G J WEST and J F PHILLIPS 28 July 1976 [28 July 1975] 31501/75 Heading A6M A device for assisting a person to walk along a predetermined path comprises an elongate hollow tube as shown in Figs. I or 3 and a handle as shown in Fig. 5. Part 10 of the handle slides within the tube, part 12 is for gripping and part 119 slides along slot 2 and fits into recesses 3 or 5. The embodiment of Fig. 3 has a member 6 for directing part 11 of the handle into the recess 5. The recesses may be at an angle other than 90‹, as shown, to the slot 2. The tube is attached to a stair rail or wall by means of a sleeve for holding the tube attached through a web portion to a flange. Alternatively the tube has an integral web and flange. The tube may be manufactured from an aluminium tube by cutting slot 2, or from a strip or sheet of ductile material, preferably aluminium formed into the requisite shape.
Patent GB-520792-A (GB)
Title: An improved method of stabilizing and purifying lubricants
IPC: B01D36/00
Filed: 1938-11-01
Abstract: 520,792. Lubricating-oils. STANDARD OIL DEVELOPMENT CO. Nov. 1, 1938, No. 31604. Convention date, Dec. 31, 1937. Drawings to Specification. [Class 91] Lubricating oils are in use maintained charged with oxidation-inhibitor only slightly soluble therein by circulating portions of the oil through a mass of such inhibitor and returning them to the main body of oil. Conveniently a filter packing is made of or is coated, impregnated, or otherwise charged with one or more inhibitors, and is combined with the oil-filter of the motor or other engine. Suitable filters are those described in Specification 412,767, and in U.S.A. Specifications 2,071,529 and 2,071,550, which are provided with removable impregnated or loaded cartridges or plugs of wool, asbestos, mineral or glass wool, cotton, or activated clay. Inhibits or specified are aromatic sulphur compounds such as diphenyl and diphenol sulphides, and disulphides, phenyl mercaptans, phenyl polysulphides, the corresponding naphthol. anthrol, and phenanthrol compounds, sulphurized wood creosote, sulphurized cresols, and thiophenyl-betanaphthylamine ; metalloorganic compounds used with motor fuels, as anti-detonants ; metallic soaps, e.g. lead oleate.
Patent GB-481308-A (GB)
Title: Improvements in the manufacture and production of tanning agents
IPC: C14C3/20
Filed: 1936-11-19
Abstract: Tanning-agents are obtained by mixing or heating together (a) a product prepared, as described in the parent Specification, by condensing a dihydroxydiphenyl sulphone with a sulphite and formaldehyde, or a reagent which yields formaldehyde, and (b) a product obtained by acting with a sulphite and formaldehyde, or a reagent which yields formaldehyde, on a condensation product of a phenol and a ketone.  In the examples: (1) 4 : 41-dihydroxydiphenyl sulphone is heated under pressure with aqueous sodium sulphite and formaldehyde and the solution is acidified with sulphuric acid; in addition, b , b -di-(4-hydroxyphenyl)propane is heated with aqueous sodium sulphite and formaldehyde and the solution is acidified with sulphuric acid; the two solutions are then mixed; in place of the di(hydroxyphenyl)-propane, use may be made of condensation products obtainable from phenol and methylethyl ketone, phenol and acetophenone, phenol and cyclohexanone, o-cresol and acetone, o-cresol and methylethyl ketone, o-cresol and acetophenone, or m-cresol and acetone; (2) the solutions used in example 1 are mixed before they are acidified, and the mixture is acidified; (3) di(4 - hydroxy - 3 - methylphenyl)methylphenylmethane (obtainable by condensing 2 mols. of o-cresol with 1 mol. of acetophenone) is heated with aqueous sodium sulphite and formaldehyde, and the solution is acidified and mixed with the first solution used in example 1.
Patent GB-969238-A (GB)
Title: Improvements in and relating to sieve drum drying apparatus
IPC: F26B17/28
Filed: 1961-09-05
Abstract: 969,238. Sieve drum driers. FLEISSNER G.m.b.H. Sept. 5, 1961 [Oct. 4, 1960; Oct. 27, 1960], No. 31817/61. Heading F4G. A sieve drum drier for a web of material 5 or for granular material comprises drums 1, 6 having adjustable fans 2, 7, respectively, the fan 2 exerting a greater suction than fan 7, and the air flow from fan 2 being separated into two streams via casing openings 4, one stream passing over a lower heater 15 for direct return to the drum 1 and the other passing over an upper heater 15 for passage through the material and into the adjacent drum 6, from whence it is passed through a single outlet 7 to the drum 1. Cover plates within the drums may have suction nozzles of adjustable size or which are displaceable, formed at their ends to enhance the adhesion of the material to the drums at particular points.
Patent GB-793122-A (GB)
Title: Improvements in or relating to hand-operated straight-bar knitting machines having a single needle-bed
IPC: D04B39/00
Filed: 1955-11-07
Abstract: 793,122. Knitting-machines. LENGLET, J. F. Nov. 7, 1955 [Nov. 5, 1954], No. 31822/55. Class 74 (2). The fabric is held in position on a hand-operated straight-bar sliding-needle machine, without the use of take-down weights, by a plate 11 carried slidably on arms 12 borne by the cam carriage 1, and urged against the fabric by springs 15, and by two wheels 19 carried by a member 17 on the plate 11 and provided with teeth 21 which penetrate the last course of loops to engage between the teeth of the knocking- over comb 8, so that the wheels are rotated as the cam carriage moves. The upper faces of the teeth are bevelled at 22 and the wheels are so positioned as to engage the needles at points where they are being retracted and advanced. The wheels rotate in a plane substantially perpendicular to that of the fabric.
Patent GB-618150-A (GB)
Title: Improvements relating to heat exchange apparatus
IPC: F28D7/10
Filed: 1946-10-26
Abstract: 618,150. Tubular heat-exchange elements. PORTEOUS, W. K. Oct. 26, 1946. No. 31825. [Class 64(iii)] [Also in Group XXVIII] A heat exchanger suitable for carrying sludge or other liquids having solid particles in suspension comprises units of concentric tubes arranged with their axes substantially vertical. The outer tubes 1 of each unit are flanged and the annular spaces between the concentric tubes in adjacent units are interconnected through a onepiece H-shaped hollow member 5 which abuts against the outer tube flanges 2. The inner tubes 3 extend beyond the outer tubes and pass through the parallel arms of the H-shaped members 5 and are connected together by hollow U- shaped members 7 and are provided at one end with a flange 4 which is held between the flanges 6 and 8 of an H-shaped member and a U-shaped member respectively, the other end of each tube being surrounded by a gland 10 in a stuffing box 9, the flange of the latter being held between two flanges 6 and 8 in a similar way to the flanges of the inner tubes 3. In order to allow free expansion of the inner tube through the gland 9, the U-shaped member associated with the stuffing box has a short recessed portion, the diameter of the recess being the same as the external diameter of the inner tube 3. At the end where the fluid enters, the inner tubes are provided with replaceable steel liners 11 each having a flange 12 which rests upon the top rim of the tube. Hard removable sleeves 13 and 14 fill the ends of the annular space between the tubes and are tapered off towards the centre-line of the H-shaped member and the top sleeves 13 have flanges 15 which seat in recesses 16 in the upper H-shaped members and the bottom sleeves rest on the flanges 4 of the inner tubes 3. A heat-exchanger comprises a series of such concentric units supported in a girder framework, the units being arranged in lines and the end unit of each line being provided at the top and bottom with T- shaped castings replacing the H-shaped castings on the other units, further U- shaped castings being used to connect the units of one line with those of an adjacent line. The heat exchanger is enclosed in a lagged casing with a detachable sectional roof of corrugated iron and hot flue gases from an external source are circulated in the casing in the spaces between the concentric tube units. Baffles are provided to cause the flue gases to take a tortuous path, the top set of baffles serving as a platform for carrying out maintenance work.