baber/WOPTO huggingface dataset:
Patent GB-1445406-A (GB)
Title: Apparatus using a beam of electro-magnetic radiation or of electrons
IPC: H01J37/20
Filed: 1973-07-23
Abstract: 1445406 Automatic control of position MAX-PLANCK-GES ZUR FORDERUNG DER WISSENSCHAFTEN E V GOTTINGEN 23 July 1973 [21 July 1972] 35070/73 Heading G3R [ Also in Division H1] A device for rotating an object about an axis in optical or electron-optical apparatus comrises a support for the object, means for moving the support, means for measuring to distance of the object from fixed points of the apparatus and means for moving the support according to the output from the measuring means. The object 2 of an electron diffraction microscope is mounted in a bore 6 of a shaft 5 in conical bearings 7, 8 in a frame 9 suspended on rods 18... 21. The frame is moved in the x, y directions by mechanical, electro- or magneto-stricture drives e.g. Piezo-ceramic devices 10...17. The shaft carries metal or metal coated cylinders or spheres 22, 23 which with fixed flat or curved electrodes 24...29 form capacitors. Rotation of the shaft causes random movements in the x, y directions which are detected by circuits including the capacitors. The outputs of these circuits are used to control the devices 10...17 to return the shaft axis to its original position. To overcome errors due to mechanical inaccuracies in the capacitors the apparatus is calibrated by measuring with device 31 the capacitances at each angular position with the object 2 centred by e.g. direct observation in the microscope. This data is retained in a store 32. In use these capacitances are compared with the measured values and devices 10...17 operated to remove any differences. Calibration can be avoided if lengths are measured absolutely, optically. Movement in the Z-direction can be compensated using further capacitors and making rods 18...21 magnetostrictive. The capacitors may be replaced by inductive, Piezo-electric, optical or electron optical devices e.g. a thin whisker partially covers two openings, movement of the whisker alters the effective apertures through which electron beams, visible or U.V. light passes. In another embodiment the members 22, 23 are spherical and also act as bearings. Alternatively a single sphere can be used with the object at its centre.
Patent GB-607976-A (GB)
Title: Improvements in or relating to adjustable fasteners for casement-type windows, fanlights and the like
IPC: E05C17/18
Filed: 1945-12-28
Abstract: 607,976. Stays for hinged &c. articles. HOLDT, W. A. Dec. 28, 1945, No. 35119. [Class 65 (i)] A stay of the pin-and-hole lift-off type is characterised in that a shaped portion of the stay bar 4 is adapted, when the casement 1 is fully closed, to be engaged in a slot of dovetail or other narrow-mouthed shape in cross-section in a bracket 11 fixed to the frame, the shaped portion thereafter being slidable non-removably in the slot to a limited extent. As shown, the bracket is combined with the pin 14 and is formed with a dovetail slot, while the bar is formed with a corresponding dovetail rib 7, a stop-member 8, and adjacent the latter with notches adapted to interlock with the bracket, the bar being reinforced at 18 in the region of the notches. The casement is locked in the closed position by the engagement of a hole 23 in the bar with a pin 21 on a bracket 22 fixed to the sill. In a modification, the slotted bracket is fixed to a vertical member of the frame. In a further modification, the bar is formed adjacent its attached end with a reduced or neck portion adapted to pass through the narrow portion of the slot, whereafter the remaining portion of the bar is capable of sliding movement in the larger portion of the slot.
Patent GB-409069-A (GB)
Title: Improvements in check valves
IPC: F16K15/02
Filed: 1932-12-13
Abstract: 409,069. Check or non-return valves. TELCO, P., 6, Gordon Square, London, and BLINCOW, O. E., 45, Tennall Road, Harborne, Birmingham. Dec. 13, 1932, No. 35301. [Class 135.] A check or non-return valve of the lift type is provided with a glass inspection cover D and the valve member with a pair of upwardly extending spring fingers F which bear on the under side of the glass. The fingers F give a readily visible indication, by their degree of spreading of the degree of opening of the valve, since they scrape through any film of oil or dirt which may collect on the under side of the glass.
Patent GB-1088608-A (GB)
Title: Gum supply device
IPC: B05C17/015
Filed: 1965-08-18
Abstract: 1, 088, 608. Syringes. K. KÍRBER. Aug. 18, 1965 [Nov. 7, 1964], No. 35381/65. Heading F1R. [Also in Division F2] In a glue dispensing cylinder device the glue space 22 is separated from a gas pressure space by a piston 4 having sealing means for each space, the chamber formed between the two seals being relieved to atmosphere or a suction source through the hollow piston rod 8. The sealing disc 2 may be replaced by a further cup-washer.
Patent GB-419844-A (GB)
Title: Improvements in the manufacture of ammonium sulphate
IPC: C01C1/242
Filed: 1933-12-15
Abstract: In a cyclic process for the production of ammonium sulphate from ammonia and sulphuric acid, the purification of the mother liquors from impurities such as iron and arsenic is effected at a temperature above 60 DEG  C. by rendering them alkaline by means of ammonia and then blowing air or oxygen into them to produce a precipitate containing the impurities, the precipitate being removed from the mother liquors and the latter then being returned to the saturators. If the quantity of iron present is insufficient to permit the precipitation of all the arsenic, a solution of an iron salt, e.g. ferrous sulphate, is added to the mother liquors prior to the treatment.  The precipitate containing iron and arsenic may be separated by means of a centrifugal filter with a solid drum or a cream separator, and may be employed as a fungicide.  Specification 174,878, [Class 1 (ii)], is referred to.ALSO:The precipitate containing a compound of iron and arsenic, obtained in purifying ammonium sulphate mother liquors from impurities such as iron and arsenic by rendering them alkaline with ammonia followed by treatment with air or oxygen, is employed as a fungicide. p
Patent GB-1097934-A (GB)
Title: Method of, and apparatus for, welding a lead-in wire to the base of an electric lamp
IPC: B23K9/067
Filed: 1965-08-18
Abstract: 1,097,934. Welding by fusion. SYLVANIA ELECTRIC PRODUCTS Inc. Aug. 18, 1965 [Aug. 18, 1964], No. 35473/65. Heading B3R. In welding the side lead-in wire of an electric lamp 11, 13 to the metal base 13 of the lamp, a pressure pad of non-conductive material is provided to hold the wire against the base in position for welding and the pad protects the glass envelope 11 of the lamp during welding. A pressure pad comprising a spring-loaded lava wheel 10, Fig. 4, rotatable on a member 12 normally lies in the path of movement of a conveyer carrying lamps 11, 13 through working stations so that as a lamp is advanced it displaces the wheel in a direction normal to the direction of advance of the lamp and causes the wheel to rotate to present a fresh part of its periphery. The wheel applies a positive force to the lead-in wire 15 against the lip 17, Fig. 3, of the base 13 of the lamp. An RF discharge is initiated between an electrode 16 and the wire 15 followed by a D.C. arc to effect welding of the wire to the base. A stationary wick 14 dispenses water on to the wheel to prevent build-up of metal on the wheel. The electrode may be stationary.
Patent GB-626725-A (GB)
Title: Improvements in or relating to colour photography
IPC: G03C7/30
Filed: 1946-11-29
Abstract: 626,725. Colour photography. HARRISON, G. B., and ILFORD, Ltd. Nov. 29, 1946, No. 35488. [Class 98 (ii)] A method of colour photography, of especial value where the support for the emulsion layers is opaque, such as a support of white paper, using an element comprising a support carrying on one side of it three silver halide emulsion layers selectively sensitive to red, green and blue light (the red- and green-sensitive layers being in either order but both on one side of the blue-sensitive layer) and containing barrier layers separating the emulsion layers which either initially or after treatment of the element with a photographic developer have a substantial density to blue light or ultra-violet rays to which the emulsion layers are sensitive; comprises (a) forming light-sensitive silver halide images in the said emulsion layers by exposing the element to a coloured object and developing to silver the negative latent images thus formed in the emulsion layers, leaving positive light-sensitive silver halide images in those layers; (b) exposing the outermost emulsion layer to blue light or ultra-violet rays of an intensity sufficient to expose fully the light-sensitive silver halide image in such layer but insufficient to penetrate the first barrier layer to expose silver halide in the second silver halide emulsion layer, and processing said outermost exposed layer to form a coloured image therein; (c) exposing the assembly from the same side with blue light or ultra-violet rays of an intensity sufficient to penetrate the first barrier layer and the image deposits in the first emulsion layer, and fully exposing the lightsensitive silver halide image of the second emulsion layer but not sufficient also to penetrate the second barrier layer to expose silver halide in the third emulsion layer, and processing said second emulsion layer to form a coloured image therein; and (d) thereafter rendering the light-sensitive silver halide image in the third emulsion layer developable, for example by means of blue light or ultra-violet rays of an intensity sufficient to penetrate both barrier layers and the image deposits in the intervening emulsion layer, and to expose fully the light-sensitive silver halide image in the third emulsion layer, and processing said third emulsion layer to form a coloured image therein. An example describes an element identical with that of Example 1 of Specification 595,582 except for the use of an opaque base such as waterproof paper instead of film, and specifies exposures of 10 seconds with blue light, 4 minutes with blue light, and 10 minutes with ultra-violet rays respectively for the positive residual silver halide in the blue-, green- and. red-sensitive layers ; with processing solutions and treatments as in Specification 595,582.
Patent GB-1006616-A (GB)
Title: Improvements in filters
IPC: B01D35/06
Filed: 1962-09-18
Abstract: 1,006,616. Magnetic filters. E. A. F. DING- LINGER. Sept. 18, 1962 [Sept. 19, 1961], No. 35502/62. Heading B2J. A magnetic filter has a valve arrangement 3, 6, 7 by means of which the ratio of liquid flowing radially to that flowing longitudinally of magnetic elements 2 may be adjusted. The position of the valve is controlled by a piston motor 9 which in its uppermost position causes liquid flow to be from inlet 11 to a cylindrical screen 4 from which it flows in a generally radial direction past elements 2. At its lowest flow controlling position the inner skirt of the screen 4 is closed by a cone plug 7 so that liquid flow is diverted into a direction generally axial of the elements 2. With intermediate positions of the valve the flow pattern is correspondingly modified. To clean the elements a flange 10 on the upper part of cylinder 4 gives passage to the elements through rubber or plastics bushes (not shown) and these bushes wipe the elements clean as the motor 9 lowers the valve to its lowest extent. The filter is flushed in reverse and the cylinder 4 may be vibrated to dislodge precipitate.
Patent GB-806374-A (GB)
Title: An improved flat knit fabric and machine for the production thereof
IPC: D04B1/00
Filed: 1955-12-10
Abstract: 806,374. Knitting. HALL (TEXTILES) Ltd., B. P., and HALL, W. H. Dec. 6, 1956 [Dec. 10, 1955], No. 35531/55. Drawings to Specification, Class 74 (2). A flat fabric is knitted on a straight-bar machine in which alternate courses are knitted of one kind of yarn and the intervening courses are knitted of another kind of yarn. The yarns may be differentiated by having opposite twist or by being composed of dissimilar fibres. The fabric is produced on a straight-bar machine which has an even number of yarn carriers, half of which are threaded with one kind of yarn and the other half threaded with the other kind of yarn. Each yarn carrier is carried by an endless steel band which is reciprocated by an associated pin on a driving member. Each pin is selected in turn by pattern mechanism to cause the corresponding carrier to traverse the needles and feed its yarn. The fact that an even number of carriers is provided necessitates a false draw after all of the carriers have been reciprocated in order to recommence the sequence and maintain the relationship of the yarns in their courses and for this purpose pattern controlled mechanism holds the needles in their knock-over position on completion of the last carrier traverse of a sequence and during the following false draw when the draw mechanism operates without traversing a carrier.
Patent GB-909822-A (GB)
Title: Improvements relating to gas-blast electric circuit-breakers
Inventor: DRIVER KENNETH STANLEY
IPC: H01H33/70
Filed: 1957-11-14
Abstract: 909,822. Gas-blast switches. REYROLLE & CO. Ltd., A. Feb. 13, 1959 [Nov. 14, 1957], No. 35535/57. Class 38 (5). An air-blast circuit-breaker has its contacts arranged so that the whole of the arc is formed downstream of the nozzle throat. In the arrangement shown an insulating chamber 10 has upstream and downstream portions 18, 19 respectively, which are connected by a refractory insulating nozzle 12 and contain metal terminal blocks 20, 21, housing the contacts 22, 23. In the closed position, Fig. 1 (not shown), a spring 26 urges piston 24 downwardly to engage arcing tips 35, 36, and depress the spring-controlled contact 22 so that the load current passes through the wiping contacts 27, 28, and the contact 23. To open, compressed air from a reservoir, Fig. 1 (not shown), is passed through the chamber 10 and inlet passages 31 to raise the piston 24 and contact 23, the contact 22 following it until arrested in the position shown. The arc 37 is extinguished by means of a supersonic blast acting on the whole arc length and over the arcing tip 36. The ports 38 which exhaust directly to atmosphere may either be of fixed cross-sectional area or have spring- controlled valves, Fig. 3 (not shown). If a gas other than air is used, the ports 38 may form part of a closed circulating system. The upstream arcing contact may be arranged to extend transversely of the air flow downstream of the nozzle so that it does not pass through the nozzle throat at all.
Patent GB-510421-A (GB)
Title: Improvements in or relating to parallel vices
IPC: B25B1/24
Filed: 1938-12-07
Abstract: 510,421. Vices. FRIEDRICH, B. Dec. 7, 1938, No. 35671. Convention date, Dec. 9, 1937. [Class 61 (ii)] In a parallel vice wherein the clamping jaws are forced downwards towards the bed of the vice during the clamping operation by means of tilting members acting between the clamping device and the clamping jaws the latter are mounted to move vertically on the jaw supports as by means of balls or rollers. One jaw support or member 6 is fixed and the other jaw support 13 is adjustable by a screw 3 and nut operated member 21. The clamping jaws 7, 12 which carry the gripping faces 8, 14 are mounted for vertical movement on the jaw supports 6, 13 by means of balls or rollers 10, 15. The end of the vice screw 3 rotates within an abutment member 16 between which and a block 20 supported on the lower part of jaw 7 is interposed one tilting member 19, another tilting member 22 being interposed between the member 21 and a block 23 supported on the lower part of the adjustable jaw 12; these tilting members cause downward movement of the jaws during the clamping. Springs 26, 27, 28, 29 are interposed where indicated between the relatively moving parts.
Patent GB-323883-A (GB)
Title: An improved holder for abrasive, polishing, scouring or cleaning pads
IPC: A47L13/022
Filed: 1928-12-04
Abstract: 323,883. Cory, A M. Dec. 4, 1928. Scouring appliances.-A holder for abrasive, polishing, scouring, or cleaning- pads has a cup-shaped portion containing means for engaging the pad which is attached thereto by being rotated relatively to the holder. As shown in Fig. 2, tha handle 1 has a . cupped portion 2 in which are fixed two prongs 3 having radial portions 3<a> and circumferential free ends which penetrate into the steel wool pad.
Patent GB-1246124-A (GB)
Title: Improvements relating to springs
Inventor: RHODES ARTHUR NEVILLE
IPC: B64F1/04
Filed: 1968-07-29
Abstract: 1,246,124. Self centring aircraft arrestor hook. BRITISH AIRCRAFT CORP. Ltd. 21 July, 1969 [29 July, 1968], No. 36088/68. Heading B7G. [Also in Divisions E2 and F2] An I-section arm 2 of a self-centring aircraft arrestor hook is pivotally connected about pin 22 to a bracket 3 itself pivotally connected about pin 21 to the rear of an aircraft 20. Rollers 7 are attached to an extension 6 of the bracket 3 and when arm 2 is moved from the central position, say in the direction of one member 11a of a pair of ring beams 11a, 11b, the rollers 7 abut its face 12 and force member 11a to pivot about pin 10a mounted on the arm 2. This in turn, through push rod 16, causes spring member 11b to similarly pivot, since it abuts via a bearer 13b the end 14 of the centre web 8 of the arm 2. The spring members 11a and 11b bend about their respective pivots 10a and 10b to produce a restoring force on arm 2. Initial setting up is effected by screw adjustment of the bearers 13a, 13b and similar bearers 15a, 15b contacting the rod 16. Bolts 18a and 18b limit the angle of pivot of the pivot arm 2.
Patent GB-1144351-A (GB)
Title: Improvements in or relating to laundry equipment
Inventor: KENNEDY WALTER DAVID
IPC: D06F31/00
Filed: 1965-08-23
Abstract: 1,144,351. Feeding webs. DAVID KEN-, NEDY (ENGS.) Ltd. 17 Aug., 1967 [23 Aug. 1965], No. 36124/65. Heading B6B. [Also in Division D1] Apparatus for supplying a continuous strip 30 of towel to towel washing equipment comprises a hopper 10 from which the strip, consisting of towel lengths joined end to end, is pulled by the drive means in the washing equipment, means being provided for joining to the trailing end of the strip another towel to be washed, and for intermittent refilling of the hopper with this other towel and further towels joined end to end. The strip 30 passes over guide rollers 11, 12 adjustable relatively to one another so as to provide a drag on the strip preventing any tendency for the weight of the  strip portion which has passed thereover to empty the hopper at a faster rate than the rate of flow of the strip through the washing equipment. The trailing end of the strip extends out of the bottom of the hopper 10 between rollers 14, 13. The roller 13 is driven by a belt 32 when a motor 31 is started and feeds the towel into the hopper at a faster rate than that at which the towel is being drawn out by the hopper. The roller 14 is carried by levers 17 connected to air jacks 21 which press the roller 14 towards the roller 13 but allow the roller 14 to yield when a join is passing between the rollers. The jacks can also be operated to move the roller 14 away from the roller 13 for facilitating threading of the strip between the rollers. Below the hopper 10 is a holder 23 for a roll of towel 33 to be joined to the trailing end of the strip projecting from the rollers 13, 14. This joining may be effected by means of a stapler 22 or by means of adhesive tape applied by heating means provided in place of the stapler. After joining has been effected, the motor 31 is started and the rollers 13, 14 feed the attached towel into the hopper. A photo-electric device 27 detects when the end of the towel 33 is passing upwardly and acts to stop the motor 31. The device 27 also operates if a large tear in the towel edge passes it, so as to allow the torn edges to be stapled together and thus prevent the tear becoming worse. Another photoelectric detector device 34 may be provided in the hopper whereby when the hopper is emptied to a predetermined level the washing equipment is shut off, thus minimizing the number of times the equipment has to be rethreaded. The hopper 10, as shown, comprises an assembly of rods 15, of which those at the right and left hand sides extend into grooves in the rollers 13, 14 to prevent wrapping of the strip around the rollers. The stapling or other joining means used are such that the towels can be separated easily after being dried.
Patent GB-1502225-A (GB)
Title: Pour spouts for fluid containers
IPC: B65D25/48
Filed: 1976-09-01
Abstract: 1502225 Lids with spouts; paint can attachments J C RITTER 1 Sept 1976 [2 Sept 1975] 36132/76 Headings B8T and B8D A lid 10 intended to be fitted on a container 14, in particular a paint can, when the contents are being poured out or otherwise withdrawn, comprises a square aperture 26 along two sides of which are upstanding walls forming a spout 28, an upstanding marginal bead 38 which is integrally connected at its ends to spout 28 so  that together with spout 28 aperture 26 is circumscribed, depending annular flanges 22, 24, Fig. 3, which snap-fit on and protect rim 16 of the container and apertures 40 which allow insertion of a tool 42 to facilitate removal of the lid. Weirs 33, only are visible Fig. 1, may be provided at each corner of aperture 26 to prevent spilling of contents when they are stirred. Edges 29, 30 of aperture 26 are intended to act as brush scrapers. A temporary closure for aperture 26 is provided by a plug stopper 12 having downwardly tapering walls 48 and a handle 46. Lid 10 and plug 12 may be of rubber or plastics.
Patent GB-1350168-A (GB)
Title: Plasma spray gun
IPC: H05H1/44
Filed: 1972-08-02
Abstract: 1350168 Spraying metal COMMISSARIAT A L'ENERGIE ATOMIQUE 2 Aug 1972 [4 Aug 1971] 36141/72 Heading C7F [Also in Division H5] In a method of spraying a fusible substance in plasma form, the substance being progressively moved forward into a region where the flames produced by at least two plasma torches converge, the plasma torches are supplied in series by a single current supply such that the anode of one torch is connected to the cathode of the next Fig. 2. Fig. 1 shows a plasma spray gun using the invention having torches comprising anode 7, cathode 8 and insulating sleeve 10. Each torch is mounted by seals 12 and ceramic bush 13 within a chamber 14 which carries cooling water supplied and withdrawn by ducts 16, 15 located in a cork bung 17. Electrical connections are established through conductive braid (such as 21) connected to the ducts which act as terminals. Ducts (not shown) connect each torch chamber 5 to a supply of ionisable gas. The annular nozzle 6 can be arranged to inject air or inert gas to accelerate the spray particles. The fusible substance may be in the form of a wire, strand, or compressed powder rod.