baber/WOPTO huggingface dataset:
Patent GB-1383803-A (GB)
Title: Photogrphic material
IPC: G03C1/50
Filed: 1972-02-17
Abstract: 1383803 Photo-sensitive materials NAUCHNO-ISSLEDOVATELSKY TEKHNOKHIMICHESKY INSTITUT BYTOVOGO OBSLUZHIVANIA 17 Feb 1972 7328/72 Heading G2C A photo-sensitive material comprises a support and a light-sensitive layer of (a) a dye sensitive to visible light, (b) and water-soluble salt of Ag, Au, Pt or Pd and (c) either triethanolamine or disodium salt of ethylene diamise tetracetic acid as chelating agent. The layer preferably contains gelatine or polyvinyl alcohol as a binder and may also contain a water-soluble bivalent Cu, bivalent Fe, or tetravalent tin salt to increase sensitivity. The material is imagewise exposed, washed with water to remove unreacted salts and physically developed to pro-  duce a negative metal image. Methylene blue and thionine blue are the specified dyes and silver nitrite and sulphate, auric chloride, palladium chloride and sulphate and platinic chloride are the specified dyes.
Patent GB-739467-A (GB)
Title: Improvements relating to collapsible tubes
IPC: B65D35/02
Filed: 1954-03-12
Abstract: 739,467. Collapsible tubes. UNILEVER, Ltd. March 12, 1954 [March 13, 1953], No. 7353/54. Class 66. A collapsible tube comprises a tubular body portion 1, a shoulder 2 and a threaded neck 3, all of plastic material, e.g. polyvinyl chloride or polythene, and a metal sheath 5 surrounding the tubular body portion 1. The sheath 5 may partially, Fig. 1, or completely; Fig. 2, surround the tubular body 1. As shown in Fig. 2, the shoulder 2 may be provided with a grooved flange 6 one of the ends of the metal sheath 5 being inserted into the circular groove. Alternatively the sheath may have an inwardly directed shoulder which has the same inclination as and rests on the shoulder 2. In this case the shoulder 2 may be provided with an annular recess so that the shoulder of the metal sheath 5 comes flush with the shoulder of the tube. The sheath 5 is secured to' the tubular body 1 by an adhesive or by heat sealing.
Patent GB-199107-A (GB)
Title: Improvements in or connected with extensible tables
IPC: A47B1/02
Filed: 1922-03-13
Abstract: 199,107. British & Foreign Indus trials, Ltd., and Cooklin, I. March 13, 1922. Telescopic and expanding tables. - In an extensible table wherein a leaf 2 may occupy a stowed position within cut-away parts of slides 3, 4 upon separation of the ends 1 which are attached to the slides, a projection 10 on the outer slide 3 engages a bar 9 on the leaf and raises it into position on an incline 13 formed by cutting away part of the inner slide 4. In lowering the leaf it is caused to leave the ends 1 by the engagement of a projection 19 with a notch 20 in the slide 3 upon preliminary separation of the ends. The lower edges of the leaf are cut away, leaving inclines 16, 18. Specifications 186,957 and 190,514 are referred to.
Patent GB-575882-A (GB)
Title: Improvements relating to the manufacture of locking washers
IPC: B21D53/20
Filed: 1944-04-20
Abstract: 575,882. Making washers. FAN DISC, Ltd., and KILLEEN, L. W. April 20, 1944, No. 7367. [Classes 83 (ii) and 83 (iv)] Punching; shearing; cupping.-In the manufacture of lock washers with overlapping teeth as described in Specification 553,383, the operation of forcing the washer into a tapering die and cause the overlap is replaced by a contracting operation on the ring of metal surrounding the teeth effected by means of a bevelled punch or die. The strip is. first punched at 13 and slits are cut at 16. At the next stage the contraction is effected by a die with a bevelled edge 24 leading to a flat surface 23. The coacting punch 17 is sufficiently smaller than the die to permit of a limited entry and is bevelled at 26. Both die and punch have clearance recesses 25, 27 to provide space for the teeth to overlap. In the final stage the completed washer is blanked from the strip by a punch having a locating pilot. The punch 17 has a threaded shank 28 to permit axial adjustments in the holder. In a modification only the punch 17 has a bevelled edge.
Patent GB-1216659-A (GB)
Title: Improvements relating to antenna system feeding apparatus
Inventor: PICKERING SAMUEL WILLIAM
IPC: H01Q3/26
Filed: 1967-02-16
Abstract: 1,216,659. Aerials. ELECTRIC & MUSICAL INDUSTRIES Ltd. 31 Jan., 1968 [16 Feb., 1967], No. 7373/67. Heading H4A. Aerial feeding apparatus for a stack of linear radiating arrays comprises a portion of waveguide, coupling means for coupling said portion of waveguide simultaneously to the ends of all said arrays, and a plurality of delay correction means which are arranged to be interposed selectively within said coupling. As described, an aerial system for an airborne sideways looking radar comprises a stack of end-fed horizontally disposed slotted waveguide arrays 1, Fig. 1A, which are bonded by means of an adhesive, such as an epoxy resin, to sleepers 5 mounted on a weight-reduced beam 2. The radiating slots may be covered with dielectric material, to enable pressurization of the system. An arrangement for feeding all the waveguide arrays of the stack from a single transverse waveguide 11, Fig. 3, comprises a fixed hub 13 into which the waveguide 11 enters axially, and is coupled to a horn portion 12. A rotatable annular assembly 14 surrounds the hub 13, and comprises four sections of horn 10, each forming an extension of the horn portion 12, and each containing a different dielectric lens portion 9. The horn section 10 selected for use is coupled by a fixed matching section 8 to the stack of waveguide arrays, and it is arranged that the said stack then produces a beam which is of the cosecant squared type in elevation, and is appropriate for a predetermined range of altitudes. An airtight enclosure 18 surrounds the feedarrangement.
Patent GB-392703-A (GB)
Title: Improvements in or connected with the construction of metal boats
IPC: B63B3/00
Filed: 1932-03-14
Abstract: 392,703. Metal boats. MECHANS, Ltd. and MOYES, J. Y., Scotstoun Iron Works, Glasgow. March 14, 1932, No. 7469. [Class 113 (ii).] In metal boats bending of the shell plates A at their junction with the keel is eliminated by welding them to angles C which are secured on either side of the keel B. In a modification, the angles G alone constitute the keel. The abutting transverse edges of the shell plating may be flanged inwardly to present an outside smooth surface; alternatively, transverse frames may be used. Specifications 197,175, [Class 113 (ii), Ships &c., Kinds &c. of], and 350,536 are referred to.
Patent GB-867313-A (GB)
Title: Discrimination counter for receiver radiations
IPC: H04H1/00
Filed: 1959-03-04
Abstract: 867,313. Radio receiving apparatus; monitoring radio and television receivers. I.A.M. Inc. March 4, 1959 [March 4, 1958], No. 7471/59. Class 40(5) Relates to apparatus for making a survey of the number of radio and television receivers in a given area which are receiving broadcasts from a particular group of transmitters by counting at a monitoring station located in the area, the number of different unmodulated radiations emitted by the local oscillators of the receivers which occurs in a given frequency range r displaced by a predetermined amount d from the optimum heterodyne frequency, for each broadcast carrier frequency. It is assumed that the proportion of receivers which are off-tuned by amounts lying between d and (d+r) is the same for each broadcast investigated. The monitoring receiver comprises a plurality of units 6, Fig. 2, one for each transmitted carrier, of which the preamplifier 3 is tuned to the respective range r and the voltage controlled oscillator 5 is swept over this range r by a sawtooth voltage from generator 20. Each unit 6 is selectively switched into circuit when its associated broadcast is to be investigated. The signal received by omni-directional aerial 2 is heterodyned by oscillator 5 in mixer 4 and again by oscillator 9 in mixer 8. The resulting signal is amplified by I.F. amplifier 10 having a narrow pass bandwidth and the amplified signal is applied to F.M. detector 14 which is also fed by crystal oscillator 16 through a 90 degree phase shift circuit 17. If the input signal is a pure unmodulated wave, detector 14 has a low frequency output and this is passed through low-pass filter 18 to network 19 where it is added to the sawtooth output of generator 20. The frequency sweep of oscillator 5 is thus interrupted each time an unmodulated signal passes through amplifier 10, the control voltage applied to oscillator 5 being shown in Fig. 3. The feedback loop through detector 14 only has a small effective range of operation, so that generator 20 again takes over control of oscillator 5, as shown by the steep voltage rise 31 of Fig. 3. The output of network 19 is differentiated at 26, portion 31 producing a pulse which is supplied to a counter 27 through normally open gate 25. Each unmodulated signal which the receiver locks on to results in a pulse being supplied to counter 27 which thus records the number of separate unmodulated radiations in the particular range investigated. To avoid interference from F.M. and A.M. signals in the range scanned, the F.M. detector is arranged to produce a high frequency output when an F.M. signal is received, and this output is passed through filter 22 and "OR" element 24 to close gate 25 so that no pulse is supplied to counter 27. Similarly, the A.M. detector 15 is arranged to close gate 25 when an A.M. signal is received.
Patent GB-589525-A (GB)
Title: Improvements in or relating to containers for high pressure fluids
IPC: F17C1/04
Filed: 1945-03-24
Abstract: 589,525. High pressure fluid. containers. NYE, J. A. March 24, 1945, No. 7498. [Class 8 (ii).] [Also in Group XXII] In a high-pressure fluid container of the kind comprising an inner shell nesting within one or more outer shells the former is made of ductile material of thickness sufficient only to contain the fluid, and the latter shell or shells constitute a casing to protect the inner shell from strain due to internal and external pressure. The inner shell 1, Fig. 1, is formed of two thin cupshaped steel or copper sections 1a, 1b welded or sweated together along their abutting circumferential edges. The outer shell 2 is similarly formed of steel but has flanges 4a, 4b to allow of welding without damage to the inner shell. A threaded neck 5 has a flange 6 by which it is welded to the inner shell. To reduce weight the outer shell 2 may be perforated at 10 or constructed of expanded metal, woven wire or the like. In a modification the outer shell may comprise a central section 11, Fig. A, welded to twoend sections 12, 13.
Patent GB-1457988-A (GB)
Title: Vending machine
IPC: G07F11/12
Filed: 1975-02-24
Abstract: 1457988 Vending machines SIELAFF GmbH & CO AUTOMATENBAU HERRIEDEN 24 Feb 1975 7584/75 Heading A4T A vending machine comprises a main magazine 1, shown in front view in Fig. 1, in which is pivotally mounted an auxiliary magazine 2 for movement about a spindle 7, two article stacking spaces 20, 21 which are accessible from the front thus being provided, and in the inoperative condition of the machine when the spaces 20, 21 are filled with articles the auxiliary magazine 2 abuts an article in the space 20 under the force of a leafspring 12, but when a pull-out dispenser (not shown) located beneath the magazine 1 is pulled out, a lever (17) which is pivotally mounted on a side wall 11 of the magazine 1 is pivoted to engage in a slot (15) formed in a member 14 projecting from the auxiliary magazine 2, Figs. 2, 3 (not shown), thereby moving the latter out of contact with the article in the space 20 so that the said article can fall down, and when the dispenser is pushed in the lever (17) is released from the member 14 so that the auxiliary magazine 2 is again brought into contact with an article in the space 20. When all the articles have been dispensed from the space 20 the auxiliary magazine 2 turns under the force of the spring 12 to discharge its contents to the dispenser. A support member 4 prevents the articles from leaving the auxiliary magazine 2 when the latter is in its position shown in Fig. 1. The support member 4, spindle 7 and auxiliary magazine 2 are removable from the magazine 1.
Patent GB-653828-A (GB)
Title: Improvements in or relating to machines for use in repairing the valve seat faces ofparallel slide valves
IPC: B24B15/02
Filed: 1948-03-12
Abstract: 653,828. Grinding and polishing. DEWRANCE & CO., Ltd., HUNTER, R. H., and SEEDS, C. G. March 12, 1948, No. 7630. [Class 60] A machine for repairing the valve seat face of a parallel slide valve comprises a rotary tool 37. means for positioning a member 10 to abut a part of the valve opposite the face to receive the working reaction, and means for rotating the tool. A base-plate 1, which is screwed and pinned to the valve-body 102, carries legs 5 on which a member 2 is mounted for sliding adjustment. The member 2 is formed with a rod 3 to engage the valvespindle guide, and is bored to receive the grinding-wheel assembly keyed therein. The grinding-wheel 37 is clamped to a pulley member 32 rotated by a belt or chain 35. The belt 35 is driven by an electric motor 57 through a flexible drive 58 and is tensioned by jockey-pulleys 63. The pulley 32 is carried on an eccentric boss 30 of a member 24 which is rotated by a chain 26 driven by a handwheel 53. The member 24 is journalled in a sleeve 16 which has a threaded connection with a collar 10 carrying feet 14. With the grinding wheel in contact with the face 105 to be ground and the feet 14 abutting the opposite face 104, rotation of the member 16, by a chain 17 and handwheel 50, feeds the wheel into the face. In a modification the grinding-wheel is replaced by a lapping tool and the belt 35 is driven by gearing from the handwheel 53, which is then provided with a longer crank-arm. Various sizes of feet 14, chains 17 and 26, and belt 35 are fitted to suit the valve size. Wheels, construction of.-The grinding- wheel 37. Fig. 1, is hollowed out to receive a clamping plate. The cast-iron lapping too] 80, Fig. 7, may be formed integrally with the pulley 36.
Patent GB-1039354-A (GB)
Title: Short-time heat-treating process for steels
Filed: 1963-02-26
Abstract: Steel containing not more than 0.83% of carbon with or without nickel, copper, aluminium, manganese or silicon, or containing less than 0.4% of carbon together with any of the following metals; .chromium.up to 5% .molybdenum.up to 2% .tungsten.up to 4% .vanadium.up to 1.5% .niobium.up to 1.5% is heated in less than 100 seconds to a temperature within the range A3 - 1000 DEG C., and held for 20 seconds to 3 minutes before quenching.  It is then reheated to a tempering temperature not exceeding A1 and 30 DEG C. in less than 100 seconds, held at that temperature for 20 seconds to 3 minutes and cooled.
Patent GB-263358-A (GB)
Title: Improvements in or relating to lathe centres
IPC: B23B3/18
Filed: 1926-03-20
Abstract: 263,358. Reid, J. G. March 20, 1926. Turning; lathe centres. - A lathe centre is carried by a plunger within a fluid-pressure cylinder which is moved together with a tool-holder towards and from the work. The cylinder 3 carried by a turret 1 sliding on a guide 2 is preferably formed integral with a tool-holder 4 and is connected by a passage 14 and a cock 15 with a pump 11 which is preferably hydraulic. The plunger 5 within the cylinder has a cup leather 6 or other packing and carries the centre 7 which is shouldered at 8 so as to engage a cover-plate 9 or a tool 10 in the holder 4. A stop 16 on the plunger prevents the passage 14 from being closed when the centre is fully retracted. In operation, the cock 15 is opened and the centre protruded by operating the pump 11 by means of the handle 13. The cock is then closed and centre is brought up to the work and supports the latter during the operative traverse of the tool, a fine passage through the cock allowing fluid to escape as the centre is retracted. Alternatively, the fine passage may be dispensed with and the cock only partly closed, or the cock may be left fully open and the pump 11 loaded to maintain the pressure, the return of the centre then being automatic as the tool is retracted. More than one cylinder 3 may be operated by the same pump 11, as shown in the Figure, and the cocks may have pointers and dials 17, 18 to show the best position for providing a fine passage through the cook. When more than one operative traverse is made on the same piece of work, two coaxial cylinders 3, 3<A> are interconnected and the centre in the rear cylinder 3A engages a fixed stop on the lathe. The two cocks are closed after the fluid pressure has been applied so that the thrust on the working centre is transmitted through the fluid of the two cylinders to the fixed stop. A pressure gauge may be fitted, particularly with self-traversed lathes, to aid control of the cocks 15, and according to the Provisional Specification the cocks may be operated automatically by trip-gear actuated on rotation of the turret.
Patent GB-651430-A (GB)
Title: Improvements in apparatus for receiving signals converted from a code comprising onefixed number of units into a code comprising another fixed number of units
Inventor: DUUREN HENDRIK CORNELIS A VAN
IPC: H03M5/00
Filed: 1948-03-15
Abstract: 651,430. Telegraphy. STAATSBEDRIJF DER POSTERIJEN TELEGRAFIE EN TELEFONIE. March 15, 1948, No. 7801. [Class 40 (iii)] A monitor for telegraph signals which comprise a basic portion composed of a fixed number of equal-length elements to which have been added a fixed number of supplemental equal-length elements, the latter being coded in accordance with the number of marks in the basic portion, comprises a circuit arrangement adapted to compare the number of marks in the basic portion of a signal with the number represented by the coding of the supplemental portion. An eight-unit code is formed from an equal-element five-unit code by adding to the five-unit elements three elements which are indicative of the number of marks in the original five-unit character. At the receiver a monitoring arrangement is provided in which the original five-unit signal elements are sequentially applied to five relays whose contacts a ... e connect positive or negative battery, according as the element is a space or mark, respectively, over equal resistances to one side of an error indicating relay ST. The three additional elements are similarly applied sequentially to relays whose contacts f ... h also connect battery to the error relay ST, the contact f over one resistor and the contacts g and h over two resistors, all of which are of the same value as the five resistors connected to contacts a ... e. The three additional elements are so arranged that for correct reception the relay ST is connected through five resistors to positive battery and through the other five to negative battery. Earth potential is therefore applied to the relay, which remains unenergized. If owing to mutilation, e.g. on a radio channel, the code received is incorrect, unbalance occurs and the error relay ST operates and may be used to prevent an associated printer from recording a character or may send an appropriate signal to the distant transmitter. Specification 519,633 is referred to.
Patent GB-565938-A (GB)
Title: Improvements in sliding doors
IPC: E05D15/06
Filed: 1943-05-17
Abstract: 565,938. Doors, MARSTON, G. S., and STATTER & CO., Ltd., J. G. May 17, 1943, No. 7817. [Class 20 (iii)] The sections d of a sliding door or panel move in channels b of V- section provided adjacent the upper and lower edges of the door, which is formed of sheet metal and has a fiange d<1> at each of its four edges.
Patent GB-974970-A (GB)
Title: Improvements in or relating to electric discharge devices
IPC: H01J21/36
Filed: 1961-03-03
Abstract: 974,970. Thermionic valves. M-O VALVE CO. Ltd., and C. E. ISELY. March 5, 1962 [March 3, 1961], No. 7850/61. Heading H1D. In an electric discharge device, a pair of electrodes are spaced apart by at least one insulated wire sandwiched between parallel planar surfaces of the electrodes, the or each wire not otherwise serving to support either electrode. As shown, two alumina-coated tungsten wires 19, extending transversely of the tube axis, are sandwiched between cathode 2 and grid 3 and have uncoated end portions welded to the grid 3. The cathode is of rectangular section and extends through apertures in mica discs 7, 8, portions 20 of the mica discs acting as flexed tongues which press the cathode into contact with coated wires 19. The grid 3 comprises parallel wires 18 stretched across a rectangular aperture in a grid frame formed with locating tags 16. The anode 4 comprises a plate mounted on two metal rods 22 which extend through ceramic eyelets in discs 7, 8. The discs 7, 8 are spaced by four metal rods 9 located in metal eyelets 10.
Patent GB-943968-A (GB)
Title: Improvements in or relating to moving coil loudspeakers and like transducers
Inventor: YOUNG ARTHUR CHARLES
IPC: H04R9/02
Filed: 1961-03-03
Abstract: 943,968. Moving-coil instruments. ROLA CELESTION Ltd. Feb. 12, 1962 [March 3, 1961], No. 7878/61. Heading H4J. A pÚrmanent magnet 10 projects from the centre of the inner bottom wall 12 of a U- or cup-shaped yoke 13 of ferro-magnetic material and extends through a hole 15 in a front plate 16 also of ferro-magnetic material, the permanent magnet 10 being secured by means of two deformable cup-shaped washers 19 clamped between the front plate 16 and the bottom of the yoke 13. In assembly, the permanent magnet 10 is located by the insertion of a jig 22 in the hole 15, and clamping screws 17 are then tightened, deforming the washers 19 (which are formed of thin resilient metal such as brass or phosphor bronze) so that they grip the permanent magnet 10 and urge it against the inner bottom wall 12 of the yoke 13.
Patent GB-582238-A (GB)
Title: Improvements in or relating to textile machine cam-follower rollers and mountings therefor
IPC: F16H53/06
Filed: 1945-03-28
Abstract: 582,238. Cams. SKEFKO BALL BEARING CO., Ltd., (Aktiebolaget Svenska Kullagerfabriken). March 28, 1945, No. 7879. [Class 80 (iii)] [Also in Group XXXIV] A textile machine cam follower and mounting therefor, comprises a cam follower roller 1, against which the cam 11 bears, having end trunnions 2 with anti - friction bearings 4, 5, a cup shaped housing 6 adapted to be slid endwise on to each bearing, and a a semicylindrical bed 19 into which the housings 6 can be dropped, the bed interlocking with the housings to preclude their outward endwise movement when in operation. Each trunnion carries an annular cover 3, the outer periphery of which is located inside the rim of the cup-shaped housing with only a small clearance in relation thereto, to exclude dust. A shoulder 13 on the roller locates the position of the inner face of each anti-friction bearing. The construction permits easy and quick assembly of the parts and facilitates disassembly of the camroller. Modifications in the constructions of the interlocking shoulders 8, 9, are described.
Patent GB-1291121-A (GB)
Title: Improvements in or relating to self-locking nuts
Inventor: REYNOLDS AURIEL JAMES WILLIAM
IPC: F16B39/34
Filed: 1969-02-13
Abstract: 1291121 Lock nuts GEORGE COOPER (SHEFFIELD) Ltd 5 Feb 1970 [13 Feb 1969] 7944/69 Heading F2H  A lock-nut comprises a collar 18 of rubber nylon or other plastics material arranged within a recess adjacent to one end face of the nut, the collar 18 being arranged to extend axially not further than the recess and being keyed to the recess to prevent displacement therein. The collar which may be held in the recess by a swaged portion of the nut adjacent the recess may be provided with a part cylindrical key 30 which is arranged to fit in a correspondingly shaped keyway 28 within the recess. The key and keyway may extend axially the full depth or only part of the depth of the recess.