baber/WOPTO huggingface dataset:
Patent GB-553878-A (GB)
Title: Improvements in or relating to pressure relief valves
IPC: F16K17/10
Filed: 1941-12-05
Abstract: 553,878. Pressure-relief valves. SULZER FRERES SOC. ANON. Dec. 5, 1941, No. 15684. Convention date, Dec. 17, 1940. [Class 135] A relief valve is operated by pressure drop in a piping so as to be open before the arrival of the reflex higher pressure wave. The valve 6, Fig. 1, is normally closed by the pressure in the piping 2 led through a passage 14 provided with a throttle 15, to act on a piston 5. When the pressure drops, the consequent fall of pressure in a cylinder 10, connected to the pipe 2 through a pipe 11 throttled at 12, allows a spring 16 to open a valve 9, so that the space 13 is .connected to a drain pipe 3, and the valve 6 opens. In a modification shown in Fig. 2, the fall of pressure allows the spring 16 to move a valve 18 to set the space 13 into communication with the drain through a port 20 and pipe 19.
Patent GB-303344-A (GB)
Title: Improvements in or relating to lamps particularly headlights for motor vehicles
IPC: F21V3/04
Filed: 1928-05-30
Abstract: 303,344. Peters, P. A. Dec. 31, 1927, [Convention date]. Lantern fronts. - In a vehicle or other lamp, part 1 of a convex front glass is made reflecting, and the other part 2 is made diffusing, the glass being of parabolic or other curvature so that rays of light intercepted by the part 1 are thrown back on to the reflector 4 and then projected through the part 2. The part 1 may have a circular portion extending downwards so as to intercept all direct rays from the source of light 3. The reflecting surface 1 may comprise a layer of silver deposited from silver nitrate, and may be protected by a layer of copper, nickel, or other metal deposited galvanically, and a coating of enamel or artificial resin. The diffusing surface 2 is obtained by means of quartz crystals which are sprayed on to the glass and burnt in.
Patent GB-1353035-A (GB)
Title: Respirators and parts thereof
IPC: A62B23/00
Filed: 1971-05-19
Abstract: 1353035 Respirator filter holder AUERGESELLSCHAFT GmbH 19 May 1971 [9 June 1970] 15892/71 Heading BIT A respirator filter bag 1 is stretched within its outer casing (not shown) by a cruciform rubber member 2 (Fig. 1, not shown) whose arms fold up within the bag and are each widened and apertured at the free end.
Patent GB-1027170-A (GB)
Title: Improvements in and relating to ploughs
IPC: A01B5/14
Filed: 1963-04-23
Abstract: 1,027,170. Reversible disc ploughs. MASSEY-FERGUSON Inc. April 23, 1963 [April 27, 1962; June 4, 1962], No. 15921/63. Heading A1B. A reversible disc plough for attachment to a tractor hitch linkage 12, 13 comprises a plough beam 23 mounted on a frame 20 and swingable from side to side and carrying a plurality of posts 42 on which are mounted discs 40 which are free to perform a partial rotation between limits so that the discs are moved into their proper angles of attack upon engagement with the ground. As shown the beam is moved by the alternate engagement of a pair of arms 71 with a plate 83 attached to a toggle plate 80 which pivots on a pin 81 as the plough is raised by the linkage 12, 13. The plough beam 23 is locked in position by a pin attached to a lever 93 which is raised to release the beam by a lever 100 provided with an adjustable abutment 103 which abuts against the top link 13 as the plough is raised. A furrow wheel assembly 5 is pivotally mounted at the rear end of the beam and can be tilted about a fore and aft axis and is maintained in correct working position by a link 51. When not in use a stand 115 is used to support the plough and a foot 156 is provided with a latch 172 which engages on the link 51 when the plough is working.
Patent GB-497012-A (GB)
Title: Improvement in corrosion resistant steels
IPC: C22C38/40
Filed: 1937-06-09
Abstract: Chromium-nickel steel alloys which are resistant to localized corrosive attack by the action of stagnant sea water or other chloride-containing water having a pH value less than 7 consist of 16-30 per cent of chromium, 7-20 per cent of nickel, not more than 0,2 per cent of carbon, 0,5-4,0 per cent of manganese, 1-5 per cent of molybdenum, and niobium in an amount at least four times the carbon content but not over 1,5 per cent plus ten times the carbon content, with or without up to 1 per cent of silicon, the balance being wholly iron.  Specific examples are also given of similar alloys without niobium, without molybdenum, and without either niobium or molybdenum.  The Specification as open to inspection under Sect. 91 comprises also alloys of similar composition but not containing niobium, the manganese content then being 1,5-5 per cent. This subject-matter does not appear in the Specification as accepted.
Patent GB-1371008-A (GB)
Title: Coin wrapping apparatus
IPC: G07D9/06
Filed: 1973-04-04
Abstract: 1371008 Wrapping-up coins GLORY KOGYO KK 4 April 1973 [13 April 1972] 16054/73 Heading B8C Coin wrapping apparatus comprises a plurality of rollers 11, 12, 13 arranged so that in use they lie along the path of travel of a wrapper strip 28 around the circumference of a stack of coins 22, the rollers being adapted for rotation in substantial contact with the stack to wrap the same with the wrapper strip, and gearing means 37, 39, 40, 41 adapted to cause at least the last of the rollers arranged, along the path of travel of the wrapper strip to rotate at a higher speed than the other rollers whereby the wrapper strip is prevented from slackening as it is fed around the circumference of the stack of coins by the rollers. As shown, as applied to a known arrangement in which coins are fed by a mechanism to a coil receptacle 4 to form a stack 22 which is subsequently lowered through a shutter 9 on to a guide 10a which directs the stack to a wrapping mechanism 10, comprising the rollers 11, 12; 13, and in which the rollers 11, 12 are movable towards and away from the roller 13 under the control of a cam shaft 7, all the rollers are driven by a motor-driven gear 35 through the gear train 37, 39, 40, 41 and gears 23a, 23b and 23c the gear 23c associated with the roller 13 being of smaller diameter and having fewer teeth than the gears 23a and 23b associated with the rollers 11 and 12.
Patent GB-1174275-A (GB)
Title: Improvements in or relating to Ammunition
IPC: F42C19/10
Filed: 1967-04-07
Abstract: 1,174,275. Primers. FORSVARETS FABRIKSVERK. 7 April, 1967 [22 April, 1966], No. 16090/67. Heading F3A. A device for inflaming a large-bore propelling charge for location in a charge case 2 with a hole 5 for a percussion cap, comprises a container 7, e.g. of plastics, of small cross-section relative to the charge, and in communication with the percussion cap, the container being more than half filled with an inflaming charge 8 and being formed of part of, or being enclosed in, a box 14 which occupies the whole crosssection of the case 2, the box having a wall 1 separating its interior from the charge chamber with a plurality of gas escape openings 13, at least a part of a partition 9 separating the container 7 and box interior being weaker than the wall 1 so that the combustion products of the inflaming charge will first expand in the box before escaping from it into the propelling charge chamber. The box 14 is fixed in the charge case by flanges 10 and 11, and if necessary the flange 10 can be omitted. The container can be constructed separately from the box, and can be cylindrical in shape.
Patent GB-1107534-A (GB)
Title: Improvements in or relating to polyester resins
IPC: C08F283/01
Filed: 1965-04-14
Abstract: Substrates are finished with a cured air-drying unsaturated polyester film by depositing a liquid film of an air drying unsaturated polyester-monomer mixture containing a photosensitizer on the substrates to be coated, and irradiating said deposited film with flashes of light radiation of at least 50 watt seconds intensity per flash from an electronic gas-filled flash tube, said flash tube emitting photo-chemically active wavelenghts of light radiation, so as to cure said polyester film. The air-drying unsaturated polyester-monomer mixtures employed contain allylic groups.  In examples polyesters are prepared from maleic anhydride, phthalic anhydride, diethylene glycol, diallyl pentaerythritol, ethylene glycol and trimethylol-propane monoallyl ether.  These are dissolved in styrene and tertiary butyl hydroquinone is added as inhibitor.  In further examples coating compositions are prepared from styrene, a solution of silicone oil in styrene, non-drying capric acid alkyd, 1-chloromethyl naphthalene and 2-naphthalene sulphonyl chloride with polyesters and mixtures of polyesters previously prepared.  Wooden panels primed with (i) methyl ethyl ketone peroxide in dimethyl phthalate, vinyl chloride-vinyl acetate copolymer and a solvent mixture of xylene, methyl isobutyl ketone and ethyl amyl ketone; and (ii) vinyl chloride-vinyl acetate copolymer and a solvent mixture of xylene and methyl isobutyl ketone are coated with these compositions and irradiated after aging at room temperature or heat treatment.
Patent GB-851217-A (GB)
Title: Improvements in or relating to the manufacture of bodies, especially transparent panels, having a figured surface
Inventor: BEGGS STANLEY SUTTON
IPC: F21V5/02
Filed: 1957-05-21
Abstract: 851,217. Die for moulding synthetic resin panels. GENERAL ELECTRIC CO. Ltd. April 29, 1958 [Mav 21, 1957], No. 16121/57. Class 87(2). [Also in Groups X, XV, XXII and XXIII] A body having a surface figured by a multiplicity of parallel rows of outwardly tapering projections is produced by forming three mutually transverse and intersecting sets of prismatic grooves in the surface, the grooves in each set being parallel to each other and the apex lines of any one set of grooves being spaced from the points of intersection of the apex lines of the other two sets. The grooves may be all similar and the three sets inclined at equal angles to each other and relatively spaced to provide major projections of symmetrical polygonal shape in cross-sections parallel to the surface. The sides of the grooves may be plane and disposed to produce major projections of hexagonal cross-section as shown in Fig. 1, or the sides of the grooves may be curved. The body may be of steel to produce a die for moulding glass or polymerised methyl methacrylate for use in lighting fittings, the panels produced having pyramidal recesses. Panels having pyramidal projections may be produced either directly by cutting the grooves thereon or by moulding using a die having pyramidal recesses derived from the first produced body by known technique. The grooves may be spaced to produce truncated projections.
Patent GB-202772-A (GB)
Title: Improvements relating to brakes for perambulators, baby carriages, and like vehicles
IPC: B62B5/04
Filed: 1922-06-10
Abstract: 202,772. Headley, F. H. June 10, 1922. Locking by frictional and positive detents.-A perambulator of the collapsable type has a brake carried by the handle and adapted to be folded therewith into adjacency with the horizontal wheel-carrying frame. The brake shoe 6 is formed on the end of a bar 4 which is carried by a handlever 1 and a link 7 pivoted to the handle 2. When not in operation the bar 4 is held up by engaging the hand lever 1 with a ring 8, or by a spring, and when it is dropped into operative position the lever 1 passes over its dead centre to retain the brake in action. In a modification the shoe 6 is pivoted to the bar 4 and to the frame 12. Fig. 3 shows an arrangement in which a link 16 connected to the hand lever 1 actuates a bell-crank 13, 14 to bring the end 14 between the spokes of the wheel 5. Fig. 4 shows a further modification in which a :ink 19 connected to the lever 1 actuates a spring fork 17. The fork has a sliding connection with a fixed part 18 so that when operated the limbs close together to embrace the wheel 5. A projection 20 may be provided on the lever 1 to bear against the handle 2 when the lever is over its dead centre, and o spring may be employed to hold the brake off. According to the Provisional Specification the brake may be held on by a pawl and rack, and the brake operating mechanism may be contained in one of the hollow arms of the handle.
Patent GB-112642-A (GB)
Title: Improvements relating to Flax Breaking, Scutching and Dressing Apparatus.
Inventor: MCEWEN WILLIAM
IPC: D01B1/14
Filed: 1917-05-11
Abstract: 112,642. McEwen, W., and Robinson, W. May 11, 1917. Breaking and scutching apparatus; grip-chain, and like arrangements for feeding, holding, and conveying fibrous materials. - Breaking devices, beating and scutching devices, and a dressing device are all combined in one machine arranged on the principle of the automatic hackling-machine with changing and filling ends, and provision is made for passing the flax &c. through the machine in such a manner that both sides of the material are operated upon. The flax is placed in holders at the filling-end g of the machine, and is passed along the channel k in the usual manner. It is acted upon first by breaking devices a<1>, a<2>, a<3>, then by beating-devices b<1> - - - b<6>, and finally by a dressing-device c. Between the devices b<3> and b<4> is provided a turntable section k<1> of the channel operated by spring ratchet teeth on the reciprocating bar l which moves the holders. The material is then passed through the changing end h of the machine, and the untreated portion of the material is acted upon by similar devices as it is passed back along the other side of the machine. The breaking-device comprises toothed plates, one of which is pivoted at the lower end and operated by eccentrics n through rods n<1>, n<2>, the eccentrics being out of phase. To free the material, the other plate can be, moved about a pivot a<4> by an eccentric a<5> just before the holder is moved on. The beating and scutching devices comprise beaters b<7> set on drums and cooperating with curved stock plates. The dressing-device comprises a series of bars c<5> carried on endless bands and co-operating with a flat plate p. Instead of the system of holders and channels, the material may be held between belts supported in a channel, the devices being arranged alternately to act on opposite sides of the material, and a pullthrough device being provided to transfer the material to a second pair of belts to allow the untreated portion to be acted upon.
Patent GB-374623-A (GB)
Title: Improvements in cigarette cases
IPC: A24F15/12
Filed: 1931-06-04
Abstract: 374,623. Cigarette cases. SCOTT, J., Sheephills Dore, near Sheffield. June 4, 1931, No. 16228. [Class 18.] In a cigarette case of the kind comprising two traylike members hinged together and provided with elastic bands B to overlie and retain the cigarettes in position, an additional strip A of tape &c., is provided in each member of the case, the ends of each strip being attached respectively to the outer edge of the one member and to the other member near the hinge. The cigarettes overlie the strips A and, when the case is opened, the strips become taut and raise the ends of the cigarettes.
Patent GB-877617-A (GB)
Title: Improvements in or relating to arrangements of movable trays, drawers, shelves, or the like
IPC: A47F3/06
Filed: 1960-05-07
Abstract: 877,617. Cabinets, drawers. BJORGE, C. J. May 7, 1960, No. 16231/60. Class 52(1). [Also in Group XV] In a vertical assembly of sliding shelves or drawers, runners are detachably fixed by pivoted members to the side walls of the enclosing carcase at a variable height and slope, and the shelves or drawers are releasably locked in the closed position and can be retained in at least one open position. As shown, runners 13 are slidably carried on blocks 10, pivoted on supports 14, 15, which are releasably engaged in apertures 3 in rails 2. The drawers are held closed by engagement of catch 17a with a pin carried by each support 14. Runners 13 carry pivoted latches 23 which pass through slots 22 and engage flanges 22b of the drawer to limit its withdrawal. The latches may be manually pivoted out of the slots 22 to allow the drawers to be removed. Flanged partitions 5, sliding cross partitions 9, and a spring retracted label holder are provided.
Patent GB-529497-A (GB)
Title: Improvements in and relating to the treatment of dross in flotation plants
IPC: B03D1/08
Filed: 1939-06-02
Abstract: 529,497. Separating granular materials. WESTFALIA DINNENDAHL GROPPEL AKT.-GES. June 2, 1939, No. 16241. Convention date, June 24, 1938. [Class 82 (ii)] Dross from flotation plants is conveyed to a classifying device, such as a sorting cone 2, a screen or the like, from which the coarser dross is taken to a filtering device, such as an internal filter 5, and thence removed as by a conveyer worm 6 for use as builder's sand or in roadmaking etc.; overflow from the filter passes by sump 8 to the classifier 2, while the overflow from the classifier passes with the fine dross to a sump 9 from which a pump 10 removes it to the settling tanks.
Patent GB-126999-A (GB)
Title: Improvements in and relating to Torpedo Discharging Apparatus in Ships.
IPC: F41F3/10
Filed: 1916-11-14
Abstract: 126,999. Schneider et Cie. July 5, 1916. [Convention date]. Submarine vessels.-The hull or superstructure of a submarine or other vessel is fitted with a fair-water door for the aperture through which a torpedo is ejected by an internal torpedo tube arranged to turn on an horizontal axis having approximately the direction of the flow lines of the hull or superstructure. The door D is connected either directly or by arms e<2> to an axle c adapted to rotate in bearings e<1> secured to the plating of the vessel. The axle e is fitted with a worm quadrant e<3> adapted to be rotated by a spindle K acting through a cardan shaft J, bevelwheels g, i, and worm G. The spindle K is also fitted with a worm L adapted to actuate the outer cover of the torpedo tube. The door may be arranged to open either towards the inside or outside of the vessel.
Patent GB-928246-A (GB)
Title: Plane resolver
IPC: G01M1/22
Filed: 1961-05-05
Abstract: 928,246. Measuring dynamic unbalance electrically. INTERNATIONAL RESEARCH & DEVELOPMENT CORPORATION. May 5, 1961 [May 6, 1960; Sept. 9, 1960], No. 16336/61. Class 40(1). In apparatus for determining the magnitude and phase position of the unbalance of a rotor using vibration detectors at two axially spaced bearings, the effect of the left-hand unbalance component on the right-hand unbalance measurement is removed electrically without recourse to a perfectly balanced rotor. The balancing measurement is effected in ten steps, using a seven-bank, ten-position, rotary switch A1-A7 (Fig. 7). The unbalance signal at the one side, measured by transducer 36 (38) is used to modify the unbalance signal at the other side, measured by transducer 38 (36), by an amount established by using a known weight at a known angular position, to eliminate the cross effects of the unbalance components, and to indicate on meter 54 the magnitudes of the left- and right-hand components of the dynamic unbalance of the test rotor, their angular positions being determined with the aid of a stroboscopic lamp 52. Specification 610,705 is referred to.
Patent GB-235731-A (GB)
Title: Improvements in or connected with portable conveyors or elevators
IPC: B65G69/12
Filed: 1924-07-08
Abstract: 235,731. Johnson, A., and Mills, S. July 8, 1924. Discharging devices for endless conveyers and elevators; shoots.- Material is discharged by a conveyer A into a shoot b which directs it into a rotary screen c having- oppositelydisposed shoots e, f arranged below it and in front of its outlet, respectively. The shoots and screen are supported by a framework a which is pivoted to the conveyer framework and supported by similarly pivoted links a<1> and tie-rods a<2>. The inclination of the framework is varied by adjusting lock nuts a<4> on the threaded end of the rods a<2>. The screen is driven from one of the conveyer shafts by chain-and-sprocket and bevel gearing. Specification 164,896 is referred to.
Patent GB-1322431-A (GB)
Title: Tantalum powder for capacitor electrodes
IPC: H01G9/052
Filed: 1971-05-21
Abstract: 1322431 Sintered tantalum SHOWA DENKO K K 21 May 1971 [28 May 1970]. 16352/71 Heading C7D [Also in Division H1] A sintered anode for an electrolytic capacitor is manufactured from tantalum powder, the average particle diameter F in microns, measured by the air permeability method, being related to the bulk density d in g/cm<SP>3</SP> as follows:- The use of such a powder provides tantalum pellets having a low minimum moulded density having regard to their required mechanical strength, and this provides capacitors with low dissipation factors without reducing the product of the capacitance per unit weight of tantalum and the forming voltage. The powder may be manufactured by forming tantalum powder as normally used in capacitor manufacture into a layer of thickness less than 1 cm, sintering the layer to the extent that aggregates form and comminuting the aggregates to the size passing a 35 Tyler mesh.
Patent GB-1067989-A (GB)
Title: Process for the preparation of polyarylene ethers
IPC: C08G65/44
Filed: 1966-04-14
Abstract: Polyarylene ethers are prepared by reacting oxygen with a monophenol in the presence of a catalyst in an organic solvent for the polymer and an amount of ethylene glycol which is greater than that which is soluble in the organic solvent.  The ethylene glycol may be present in an amount of 3 to 30% by weight of the amount of the solvent. The reaction mixture is stirred or shaken and undesirable products pass from the solvent into the ethylene glycol phase Polyarylene ethers having relative viscosities of at least 2.90 measured at 30 DEG  C. on 1% by weight solutions in benzene and containing not more than 20 milli-equivalents of hydroxyl groups (which may have been esterified or etherified) per kilogram of polymer, are obtained by the process. In examples polyarylene ethers are obtained by passing air through 2,6-dimethyl-phenol in the presence of catalysts obtained from dimethyllaurylamine, cuprous chloride and cupric chloride; the solvents are toluene and trichloroethylene, and ethylene glycol is present.
Patent GB-119934-A (GB)
Title: Improvements in or relating to Jointed Arms or Brackets for Carrying Incandescent Electric Lamps or Incandescent Gas Lamps.
Inventor: TOFIELD HUGH CLIFFORD
IPC: F21V21/26
Filed: 1917-11-10
Abstract: 119,934. Tofield, H. C. Nov. 10, 1917. Brackets, lamp.-A bracket or support for electric or other lamps comprises trough-shaped bars a jointed together by means of bolts b, nuts e, spring washers d, and tubular distance-pieces c and provided with guiding or retaining eyes a<4> or rings for the electric cable or its equivalent. The bottom part of the bars is cut away at each end so as to leave fork-like parallel arms a<5>, and a web a<2> is left on the edge of one or both arms a<5> in the same plane as the bottom of the trough. The eye or ring a<4> is preferably stamped or pressed from the bottom or side of the bars a. The bars a are jointed together so that one of the arms a<5> of each bar is on the outside and the other arm is on the inside of corresponding arms of adjacent bars. The bars may be formed by cutting away parts of channelled strips or by bending sheet-metal blanks somewhat like the letter H. The shade or reflector g is fixed to a ring h connected by a bolt k to or formed in one with a lug l jointed. to one of the free ends of the bars whilst the other free end is jointed to a knuckle p formed in one with a disk p<2> having a depending screw pin p<1> which passes through a hole in the bed or table of a machine or other support, or a supplementary support, and is secured by nuts r and a spring washer. The electric-lamp holder is inserted through the ring h, and the cable is preferably wound one or more times round the distance-pieces. In some cases, the bars a are connected together by a pair of jointed links m, n. Fig. 8, with recessed and projecting parts at their junction as shown, the axis of the joint between the links being at rightangles to the axis of the joint between the links and bars, and the joints are arranged so that when the bracket is extended the arms and the links are in line.