baber/WOPTO huggingface dataset:
Patent GB-922777-A (GB)
Title: Work supporting head for the manufacture of electric lamps and the like
IPC: H01K3/10
Filed: 1961-05-16
Abstract: 922,777. Work heads for lamp making machines. SYLVANIA ELECTRIC PRODUCTS Inc. May 16, 1961 [June 1, 1960], No. 17839/61. Class 39 (2). In a machine for electric lamp manufacture having a conveyer which moves through a plurality of work stations during each operating cycle, a head carried by the conveyer for supporting articles of work during assembly and fabrication includes a body member and first and second work-supporting devices on the body member, the first work-supporting device being rotatable in a vertical plane parallel to the direction of travel of the conveyer. The head comprises a body member 10, Fig. 1, carried by a link 12 on a chain conveyer and two work-supporting devices 14, 16. The upper device 14 comprises a pair of pins 18, 20 normally held closed by a spring 32 extending between a fixed part 34 and a pin 36 on a swivel arm connected to the jaw 20. The lower device 16 consists of a block 38 rotatable in a vertical plane on a pin 40 and carrying a fixed jaw 42, Fig. 9, and a pair of movable jaws 44, 48. The jaw 44 is operated by a lever 56 and is normally held closed by a spring 58. The jaw 48 is carried by one leg 66a of an L-shaped lever pivoted on a pin 54, this leg being in abutting engagement with the jaw 44 and the second leg 66b engaging the end of a spring 68, the other end of which is seated in a recess in the block 38. Operation of the lever 56 by, for example, a reciprocating finger (not shown) opens the jaw 44 directly and the jaw 48 by the action of the jaw 44 on the leg 66a. The upper surface of the block 38 engages a block 70 on a rod 30 which is biased downwards by a spring 72 and carries a collar 76 which can be lifted by, for example, a lever at some part in the operating cycle so as to raise the block 70, thereby permitting the block 38 to be rotated through 180 degrees by an operating finger on the machine so as to bring the workpiece held in the jaws 42, 44, 48 into relation with that held in the jaws 18, 20. In use, in a machine for making flash-bulbs, the hooked ends 3 of a loop of wire 1 are held in the jaws 42, 44, 48 and at successive work stations a glass collar is slipped over the wire and is heated to fuse it thereto, the wire is cut to form two free ends which are flattened and a filament secured thereto (Figs. 2, 3, 4, not shown). The block 38 is then rotated through 180 degrees to bring the jaws into contact with the lower end of a glass tube held in the jaws 18, 20, the wire 1 and filament being thereby brought within the tube, the lower end of which is then heated and compressed between dies to form a press. At further work stations, a primer is applied to the interior of the tube and shredded foil introduced into it. At a subsequent station the jaws 42, 44, 48 are opened and the block 38 rotated through 90 degrees, leaving the lower end of the tube with the wires depending from the press free for further working, e.g. bending the wires back into contact with the press on opposite sides. Specification 639,048 is referred to.
Patent GB-1108948-A (GB)
Title: Reinforcing means for concrete construction
IPC: E04C5/065
Filed: 1965-04-28
Abstract: 1,108,948. Metallic fabrics. FISCHER & CO. and W. HUFNAGL. 28 April, 1965 [29 April, 1964; 6 May. 1964; 19 June, 1964; 17 July, 1964], No. 17873/65. Heading D1K. A concrete reinforcing element comprises a bar or bars 2 of circular cross-section and at least two retainer strips 1 of constant U- section, the bar or bars 2 being placed in the retainer strips and the arms of the latter being pinched together without closing to grip the bars 2. The strips 1 may be formed of bent sheet metal or may be soled with U- like slots formed therein and the bars 2 may be of zig-zag form as shown extending from one strip 1 to another. Some bars may extend from one strip to another whilst other bars may extend to a further strip. Two retainer strips may be formed or welded together as a double-U. Rust-preventing metallic or non- metallic coatings, e.g. plastics coatings, may be applied to the strips and/or bars.
Patent GB-883697-A (GB)
Title: Improvements in or relating to phase indicators
Inventor: BYATT DENNIS WILLIAM GEORGE
IPC: G01S3/14
Filed: 1959-10-14
Abstract: 883,697. Phase-measuring systems. MARCONI'S WIRELESS TELEGRAPH CO. Ltd. Oct. 14, 1959 [May 26, 1959], No. 17971/59. Class 37. [Also in Group XL (c)] A phase indicator comprises a cathode-ray tube having mutually perpendicular deflection plates, means A to derive two quadrature components from one of the two waves to be compared, means to apply the quadrature components to the sets of plates respectively and switching means to connect the quadrature components to a fixed potential point except when a control signal is applied thereto, the control signal being derived from the other wave once per cycle. In the embodiment described, the switching means is a normally conductive circuit, e.g. a diode bridge B, in which the diodes are momentarily cut-off by a potential obtained by squaring the said second wave in a Schmitt trigger circuit D, differentiating in circuit E, and selecting one lay cycle of the resultant in circuit F. When the diodes conduct the quadrature components will be at earth. When the diodes are cut off the cathode-ray is deflected in circular manner (assuming equal amplitudes of the quadrature components), the radius being determined by the quadrature component amplitude. If the ray is cut off except when the diodes are cut off a pointer-like display appears whose position is a direct indication of phase relation. The embodiment is applied to direction finding in which it is desired to measure the phase difference between a directionally received signal and a reference frequency. The phase relation between the output of a D.F. receiver 3 and a reference source 5 driving the rotor of a goniometer is a measure of signal direction.
Patent GB-666345-A (GB)
Title: Improvements in drive mechanisms for shaker conveyors
IPC: B65G27/00
Filed: 1949-07-07
Abstract: 666,345. Shaker conveyer drive. DISTING- TON ENGINEERING CO., Ltd. (Goodman Manufacturing Co.). July 7, 1949. No. 17975/49. Class 78 (i). A shaker conveyer operating mechanism comprises reciprocating driving means for causing reciprocation of the conveyer and a varying-speed gear train for driving said reciprocating driving means from a uniform speed rotary drive, at least one of the gears of said train having a non-circular pitch curve and having irregular spacing between the teeth considered at equal distances from the tips of said teeth, said gear train being such that the drive to said driving means varies at a predetermined angular velocity. The drive, Fig. 1. The drive is transferred from motor 16 to trough 12 through pinion 51, gear 52, pinion 55, gear 56, eccentric gear 59, varying speed gear wheel 60, shaft 19, crank 15, connecting rod 35, bell crank arm 34, and rocking shaft 20; the driving passing from shaft 20 to both sides of trough 12 through bell crank case 32 or rocking arm 29, and links 27 respectively. The gearing is enclosed in housing 14 and the whole is mounted on base plate 10. Varying speed gear wheel 60, Fig. 2. The gear wheel 60 has a non-circular pitch circle and non-uniform spacing of gear teeth and may be of the type described in Specification 667,038, [Group XXIV]. Trough support, Fig. 4. Trough 12 is supported aft and for on bell frames 21 pivoted to brackets 22, each frame 21 comprising an upper frame 23 mounted on balls on a lower frame 24. Motor mounting, Figs. 5, 6. Motor 16 has pads 45 thereon which stand on projections 46 of base plate 10 and has pads 44 which bear against sidewalls 39 and 40, and is kept in place by strap 47 which is secured by gears 49 to said sidewalls 39 and 40, the said strap 47 bearing against lugs 50 formed on the motor and boss 42 of the motor resting in wall 41.
Patent GB-171133-A (GB)
Title: Improvements in electric conduit boxes
IPC: H02G3/20
Filed: 1920-07-02
Abstract: 171,133. Railing, M. J., and Taylor, T. July 2, 1920. Securing globes to holders.-A well glass K is secured to a. cover F<1> by a ring and screws and wing-nuts, rubber rings being interposed between the glass and the metal parts.
Patent GB-479193-A (GB)
Title: Improvements in or relating to gas producers
IPC: C10J3/64
Filed: 1936-06-30
Abstract: 479,193. Gas - producers. BRANDT, E. W. June 30, 1936, No. 18094. Convention date, July 1, 1935. [Class 55 (i)] A gas-producer suitable for the gasefication of charcoals or ligneous fuels and comprising a firebox chamber 1 within which is disposed a bottomless chamber 6 charged with vegetable charcoal or other reducing agent, is provided on the periphery of the firebox chamber with a series of air inlets such as 9, 10 so as to create in the path of the gases zones of varied temperatures. The upper part of the reducing chamber is surrounded by an annular hopper 2 charged with the fuel to be gasefied, such as wood, lignite, &c. In operation, after charcoal in the firebox has been ignited, air is sucked through the inlets 9, 10 into the fuel bed by connecting the gas with drawal pipe 8 to suc tion and after reduc tion of the gases and cracking of the heavy oils, tars, &c. in the reducing zone thereof rises within the internal chamber 5 wherein the reduction and cracking is completed. The hot fuel bed of the firebox partly distils the incoming fuel and simultaneously creates in the lower part of the internal chamber hot zones corresponding to those in the firebox. The firebox may be surrounded by a jacket 12 provided with openings 13 having movable shutters capable of opening by depression. The air inlets preferably take the form of double conic frusta with adjacent apices, forming Venturi nozzles.
Patent GB-591903-A (GB)
Title: Improvements in or relating to silica gel catalysts for the conversion of hydrocarbon oils
IPC: B01J21/08
Filed: 1944-09-22
Abstract: Silica hydrogel made under acid conditions is soaked in a metallic salt solution, drained, and treated with a volatile base in amount insufficient to react with all of the salt.  The product is washed under acid conditions, dried to remove most of the water, and again washed and dried.  The salt may be of aluminium, magnesium, zirconium, thorium, beryllium, or mixtures thereof.  The base may be ammonium hydroxide, carbonate, sulphide &c.  The products are useful as catalysts for the conversion of hydrocarbons.
Patent GB-460999-A (GB)
Title: Improvements in safety devices for machinery
IPC: F16P3/04
Filed: 1936-06-26
Abstract: 460,999. Machinery safety devices ; locking levers. COATES, A. F. June 26, 1936, No. 18237/35. [Classes 80 (iii) and 80 (iv)] A safety device for machinery comprises a primary cam 2, Fig. 1, with arm 3 for coupling to a control member for starting the machinery, and a plurality of secondary cams 5 .. 10 mounted on a parallel axis and provided with arms 11 ... 16 for coupling individually to guards of dangerous parts of the machinery, or to operating handles or the like, for example for switches, or steam or hydraulic valves, the premature operation of which would be dangerous. Each secondary cam engages the primary cam, and both the primary and secondary cams are adapted to assume a releasing position and a locking position. The primary cam 2 has a concentric arcuate surface 17 and an eccentric arcuate surface 18, while each secondary cam has a concentric arcuate surface 19 and an eccentric arcuate surface 20. In the position shown in Fig. 3, the primary cam 2 is locked and the machinery cannot be started until all the secondary cams have been moved to the position in Fig. 5.
Patent GB-1389645-A (GB)
Title: Mirrors for example surgical mirrors or dental mirrors
IPC: A61B1/253
Filed: 1973-04-16
Abstract: 1389645 Dental mirrors H HOLSTAD 16 April 1973 [17 April 1972] 18291/73 Heading A5R A mirror 3 is arranged in a holder 2 and has small apertures 4 as jets for gas conveyed via a hollow handle 1 from an external source under pressure. To increase turbulence a vane 6 may be supported by a bearing 8 and is rotated in front of the mirror by gas jets 7 which deliver gas under pressure from the hollow vane hollow bearing, and handle. In an alternative form of vane Fig. 7 (not shown) the jets are at the ends of a curved hollow rotor (23). The vane may also be rotated by a turbine (15) which receives pressurised gas from the hollow handle 9 (Fig. 3, not shown) or the vane (21) may be specially shaped as in Fig. 5 (not shown) so that it is rotated by gas issuing from the apertures (19) in the mirror surface. For Figures see next column
Patent GB-620695-A (GB)
Title: Improvements in or relating to amplifying devices for use with telephone sets
IPC: H04M9/08
Filed: 1946-06-19
Abstract: 620,695. Substation apparatus. PEERS, J. H. R. June 19, 1946, No. 18367. [Class 40 (iv)] In a loud-speaking extension arrangement in which the receiver of an ordinary hand-set is acoustically coupled to a microphone connected through an amplifier to the loud-speaker, and in which the transmitter of the hand-set is acoustically operated by a small loud-speaker fed through an amplifier from an external microphone, a support for the hand-set comprises a casing lined with sound-absorbing material and having cavities Q, K containing a microphone A and a loud-speaker B, an air space S being provided to form an acoustic barrier therebetween. The hand-set when in position engages rubber collars at the entrances to the cavities and operates a switch T. Microphone A feeds the amplifier D through a volume control C, the amplified signal being reproduced by loud-speaker E, while an amplifier H coupled to the loud-speaker B is fed by microphone F through volume control G. The switch T controls the power supply to the amplifiers which may receive reduced heating current during standby periods, and may also control signal lamps to indicate the standby and operating condition of the amplifiers.
Patent GB-458788-A (GB)
Title: Improvements in and relating to vacuum concentrating vessels
IPC: B01D3/06
Filed: 1935-06-27
Abstract: <PICT:0458788/III/1> A vessel for evaporating and concentrating liquids under vacuum is furnished with a supply pipe 8 which is provided with an auxiliary flash chamber or inverted bowl 10 on its lower end. Owing to the abrupt flaring of the bowl the liquid flashes into vapour within it and the walls of the vessel are thus protected from splashes of liquid due to this flashing.  The bowl 10 may be attached to the pipe 8 by a bayonet joint.  The lower portion 1 of the vessel is carried on a movable bracket 3 and makes an air and liquid tight joint 4 with the upper portion 2.  Port 5 leads to a vacuum pump.
Patent GB-383227-A (GB)
Title: Improvements in or relating to permanent magnets
IPC: H04R9/02
Filed: 1932-06-30
Abstract: 383,227. Magnets. DARWINS, Ltd. and COLLINS, C. W., Fitzwilliam Works, Templeborough, Sheffield. June 30, 1932, No. 18468. [Class 35.] In a magnet of the type comprising a polepiece of high permeability mounted on one face of the magnet and surrounded by an annular air-gap, the polepiece is connected to the magnet by a base portion which extends across the magnet surface and is in contact with it over an area substantially equal to the cross section of the magnet. The Figures show a suitable form of base portion 15, tapered at its sides and ehds as indicated and supporting the cylindrical pole piece 14. The magnet body 11, base, and pole piece may be secured together by a screw 20. By making the upper face of the portion 15 slightly wider than the portion 14 and allowing clearance round the screw 20 the polepiece 14 can be adjusted in the airgap 13.
Patent GB-345584-A (GB)
Title: Ferrule for tennis rackets
IPC: A63B49/08
Filed: 1930-06-17
Abstract: 345,584. Rackets. FRITSCH, C., 14, Boulevard du Temple, Paris. June 17, 1930, No. 18481. Convention date, July 4, 1929. [Class 132 (ii).] A ferrule for the end of a tennis racket handle is made of supple material such as slightly vulcanized caoutchouc moulded, cut out or turned so as to form a cup the edges 4 of which are slightly inclined inwardly, tapering from the base 5 upwardly, the base being slightly convex to give resiliency and ensure effective tightening on to the handle 3 after its insertion in the cap, the cap forming a slightly conical protuberance at the end of the handle to prevent the hand from slipping. The cap may be secured more firmly by glueing or nailing.
Patent GB-917998-A (GB)
Title: Vented container closure lids
IPC: B65D51/16
Filed: 1961-05-23
Abstract: 917,998. Food and liquid containers. LILY CUPS OVERSEAS Ltd. May 23, 1961 [May 27, 1960], No. 18495/61. Class 49. [Also in Group XVII] The lid of a container of a hot drink or soup, a carbonated beverage or a frozen food (Fig. 2) has a vent opening 19, in a recessed portion of the lid, covered by sheet material 20 pervious to vapours but impervious to potable liquids. The lid is of plastic, e.g. polystyrene or polypropylene, and the sheet material is filter paper or other cellulosic material impregnated with a water-repellant capable of withstanding a temperature of up to 200 F. or is microporous plastic, details of the material thickness and size of pores being given. The sheet 20 is heatsealed to the lid. The interfitting head and groove of Fig. 2 may be omitted. The lid may be of paper, and the recessed portion be omitted; again (Fig. 7) the lid may be of paperboard seamed to a cylindrical rim 42 which is a friction fit on the outside of the container wall, or the lid may be of disc type, applied to a bead formed in the container wall.
Patent GB-1167245-A (GB)
Title: Improvements in Laminated Sheeting
IPC: B32B15/08
Filed: 1967-04-21
Abstract: 1,167,245. Metal/plastics laminate. DORTMUND-HORDER HUTTENUNION A.G. 21 April, 1967 [10 Oct., 1966], No. 18500/67. Heading B5N. Laminated sheeting which is vibration damping comprises two layers of different thermoplastic plastics materials having different softening temperatures, each plastics layer being sandwiched between two metal layers. The plastics are chosen so that the absorption factor, which is a measure of the damping effect, is above a certain minimum, e.g. 0À05, for the laminated sheeting over a much greater range than for a sheeting comprising one of the plastics layers alone between two metal layers. In one construction the sheeting comprises three metal layers with a plastics layer between each pair of them. In a second construction, Fig. 5, a damping strip comprises metal layers 19, 24 spaced by distance-pieces 25 with a metal layer 21, and plastics layers 22, 23 between them. Alternatively the pieces 25 are absent and the layer 24 is folded and joined at its edges to layer 19. The plastics may be polyvinyl acetate.
Patent GB-1441616-A (GB)
Title: Asbestos reinforced cementitious materials
IPC: C04B28/02
Filed: 1973-04-18
Abstract: 1441616 Asbestos reinforced cementitious materials TAC CONSTRUCTION MATERIALS Ltd 16 May 1974 [18 April 1973] 18645/73 Heading C1H An asbestos fibre reinforced cementitious material contains as additional reinforcement nylon fibre having a length of from 0À25 to 1À25 inch and a diameter (defined) of 20 to 300 microns. The diameter is that of a circle having the same cross-sectional area as the average cross-sectional area of the fibre. The fibre may be circular or multi-lobal in cross-section. The cementitious material may contain 0À25 to 5 wt. per cent nylon fibre and 5-40 wt. per cent asbestos fibre. The cementitious matrix may be ordinary Portland cement, blast furnace slag cement or lime activated granulated slag cement.
Patent GB-1350174-A (GB)
Title: Method and device for indicating temperature variations in a product preferably a food product
IPC: G01K11/00
Filed: 1972-04-21
Abstract: 1350174 Temperature indicators K G ERIKSSON S E WAHLGREN and C A MANGEN 21 April 1972 [22 April 1971] 18688/72 Heading G1D A device for indicating visually if a product stored at low temperature has been subject to damaging temperature rise comprises an indicating system including at least one component which is solid at the intended storage temperature, a dissolving agent for said component, and an indicator located in the solid component or the dissolving agent, the solid component being embedded in or coated with a substance which delays the dissolving process, the system being activated to a non-reversible indicating state by the action over a certain period of a temperature exceeding the storage temperature. The system may comprise an unstable emulsion of paraffin oil in a thickened outer component. When the outer component melts the oil drops mix together to give a changed appearance, the rate of the reaction depending on the viscosity of the outer component. In one example the solid component is finely divided trisodium phosphate suspended in paraffin wax. The dissolving agent is hydrochloric acid, and the indicator is phenol phthalein. A second example has ascorbic acid particles suspended in paraffin wax, the dissolving agent being sodium hydroxide solution with the addition of an acrylic acid polymerisate and phenol phthalein, with cresol bromide green as indicator. A third example uses finely divided salicylic acid in wax, with 0À1 per cent Fe Cl3 solution as solvent.
Patent GB-1129681-A (GB)
Title: Improvements in or relating to bulk containers for vehicles
IPC: B60P3/24
Filed: 1965-05-04
Abstract: 1,129,681. Tipping vehicle. N. T. TAMPLIN. 13 April, 1966 [4 May, 1965], No. 18753/65. Heading B7B. The body of a tipping vehicle is divided into compartments 21 &c. each having its own outlet 27 &c. to a discharge duct 17 formed between the chassis longitudinals 16 thus allowing any compartment to be emptied at will.
Patent GB-315088-A (GB)
Title: Improvements in and relating to rolling mills
IPC: B21B31/30
Filed: 1928-06-28
Abstract: 315,088. Roux, J. June 28, 1928. Roller mills.-The bearing block 8 of roll trunnions 4 is formed with inclined planes 9, 10 bearing against wedges 11, 12 moved by a right and left hand screw 13 to adjust the pass. The screw 13 is carried in end cups 17 packed with Belville washers to allow end play and self adjustment of the wedges. The lever is rotated by handwheel turning through gearing a socket wrench 14, and may be arranged to adjust both ends simultaneously. The distance between the uprights 2, 2 of the housing is greater at the upper end than at the bottom to allow greater displacement and also to facilitate removal of rolls by passing them obliquely between the two columns forming the cage. The iron bars 18, 19 are easily removable. The invention may be also applied to three high mills and to mills with pairs of two high rolls, and to mannesmann mills with non-parallel roller axes.
Patent GB-1474641-A (GB)
Title: Castable austenitic alloy
IPC: C22C38/58
Filed: 1975-05-05
Abstract: 1474641 Castable ferrous alloy AMAX Inc 5 May 1975 [13 May 1974] 18816/75 Heading C7A A castable austeritic steel with good corrosion resistance, ductility and high temperature strength in the as cast condition contains: including traces of Pb, Sn, As, Sb, Cu, S, P, and is suitable for components of gas turbine or internal combustion engines as a cheaper alternative to Fe, Co or Ni superalloys.